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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-outdevs           show all available output devices
  77   --list-filters           show all available filters
  78
  79 Standard options:
  80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
  81   --disable-logging        do not log configure debug information
  82   --fatal-warnings         fail if any configure warning is generated
  83   --prefix=PREFIX          install in PREFIX [$prefix_default]
  84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  87   --libdir=DIR             install libs in DIR [PREFIX/lib]
  88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  89   --incdir=DIR             install includes in DIR [PREFIX/include]
  90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  92   --enable-rpath           use rpath to allow installing libraries in paths
  93                            not part of the dynamic linker search path
  94                            use rpath when linking programs (USE WITH CARE)
  95   --install-name-dir=DIR   Darwin directory name for installed targets
  96
  97 Licensing options:
  98   --enable-gpl             allow use of GPL code, the resulting libs
  99                            and binaries will be under GPL [no]
 100   --enable-version3        upgrade (L)GPL to version 3 [no]
 101   --enable-nonfree         allow use of nonfree code, the resulting libs
 102                            and binaries will be unredistributable [no]
 103
 104 Configuration options:
 105   --disable-static         do not build static libraries [no]
 106   --enable-shared          build shared libraries [no]
 107   --enable-small           optimize for size instead of speed
 108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
 109   --enable-gray            enable full grayscale support (slower color)
 110   --disable-swscale-alpha  disable alpha channel support in swscale
 111   --disable-all            disable building components, libraries and programs
 112   --disable-autodetect     disable automatically detected external libraries [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build (deprecated) [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189
 190   Using any of the following switches will allow FFmpeg to link to the
 191   corresponding external library. All the components depending on that library
 192   will become enabled, if all their other dependencies are met and they are not
 193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 194   libwavpack and allow the libwavpack encoder to be built, unless it is
 195   specifically disabled with --disable-encoder=libwavpack.
 196
 197   Note that only the system libraries are auto-detected. All the other external
 198   libraries must be explicitly enabled.
 199
 200   Also note that the following help text describes the purpose of the libraries
 201   themselves, not all their features will necessarily be usable by FFmpeg.
 202
 203   --disable-alsa           disable ALSA support [autodetect]
 204   --disable-appkit         disable Apple AppKit framework [autodetect]
 205   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
 206   --enable-avisynth        enable reading of AviSynth script files [no]
 207   --disable-bzlib          disable bzlib [autodetect]
 208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
 209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 210   --enable-frei0r          enable frei0r video filtering [no]
 211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 212                            if openssl, librtmp or gmp is not used [no]
 213   --enable-gmp             enable gmp, needed for rtmp(t)e support
 214                            if openssl or librtmp is not used [no]
 215   --enable-gnutls          enable gnutls, needed for https support
 216                            if openssl, libtls or mbedtls is not used [no]
 217   --disable-iconv          disable iconv [autodetect]
 218   --enable-jni             enable JNI support [no]
 219   --enable-ladspa          enable LADSPA audio filtering [no]
 220   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
 221   --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
 222   --enable-libass          enable libass subtitles rendering,
 223                            needed for subtitles and ass filter [no]
 224   --enable-libbluray       enable BluRay reading using libbluray [no]
 225   --enable-libbs2b         enable bs2b DSP library [no]
 226   --enable-libcaca         enable textual display using libcaca [no]
 227   --enable-libcelt         enable CELT decoding via libcelt [no]
 228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 229   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
 230   --enable-libdav1d        enable AV1 decoding via libdav1d [no]
 231   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
 232   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 233                            and libraw1394 [no]
 234   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 235   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 236   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 237   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 238   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 239   --enable-libgme          enable Game Music Emu via libgme [no]
 240   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 241   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 242   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 243   --enable-libjack         enable JACK audio sound server [no]
 244   --enable-libklvanc       enable Kernel Labs VANC processing [no]
 245   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 246   --enable-liblensfun      enable lensfun lens correction [no]
 247   --enable-libmodplug      enable ModPlug via libmodplug [no]
 248   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 249   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 250   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 251   --enable-libopencv       enable video filtering via libopencv [no]
 252   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 253   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 254   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 255   --enable-libopus         enable Opus de/encoding via libopus [no]
 256   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 257   --enable-librsvg         enable SVG rasterization via librsvg [no]
 258   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 259   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 260   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 261   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 262   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 263   --enable-libsoxr         enable Include libsoxr resampling [no]
 264   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 265   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
 266   --enable-libssh          enable SFTP protocol via libssh [no]
 267   --enable-libtensorflow   enable TensorFlow as a DNN module backend
 268                            for DNN based filters like sr [no]
 269   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 270   --enable-libtheora       enable Theora encoding via libtheora [no]
 271   --enable-libtls          enable LibreSSL (via libtls), needed for https support
 272                            if openssl, gnutls or mbedtls is not used [no]
 273   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 274   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 275   --enable-libvidstab      enable video stabilization using vid.stab [no]
 276   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 277   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 278   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 279                            native implementation exists [no]
 280   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 281   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 282   --enable-libwebp         enable WebP encoding via libwebp [no]
 283   --enable-libx264         enable H.264 encoding via x264 [no]
 284   --enable-libx265         enable HEVC encoding via x265 [no]
 285   --enable-libxavs         enable AVS encoding via xavs [no]
 286   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
 287   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 288   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 289   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 290   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 291   --enable-libxvid         enable Xvid encoding via xvidcore,
 292                            native MPEG-4/Xvid encoder exists [no]
 293   --enable-libxml2         enable XML parsing using the C library libxml2, needed
 294                            for dash demuxing support [no]
 295   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 296   --enable-libzmq          enable message passing via libzmq [no]
 297   --enable-libzvbi         enable teletext support via libzvbi [no]
 298   --enable-lv2             enable LV2 audio filtering [no]
 299   --disable-lzma           disable lzma [autodetect]
 300   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 301   --enable-mbedtls         enable mbedTLS, needed for https support
 302                            if openssl, gnutls or libtls is not used [no]
 303   --enable-mediacodec      enable Android MediaCodec support [no]
 304   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 305   --enable-openal          enable OpenAL 1.1 capture support [no]
 306   --enable-opencl          enable OpenCL processing [no]
 307   --enable-opengl          enable OpenGL rendering [no]
 308   --enable-openssl         enable openssl, needed for https support
 309                            if gnutls, libtls or mbedtls is not used [no]
 310   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
 311   --disable-sndio          disable sndio support [autodetect]
 312   --disable-schannel       disable SChannel SSP, needed for TLS support on
 313                            Windows if openssl and gnutls are not used [autodetect]
 314   --disable-sdl2           disable sdl2 [autodetect]
 315   --disable-securetransport disable Secure Transport, needed for TLS support
 316                            on OSX if openssl and gnutls are not used [autodetect]
 317   --enable-vapoursynth     enable VapourSynth demuxer [no]
 318   --disable-xlib           disable xlib [autodetect]
 319   --disable-zlib           disable zlib [autodetect]
 320
 321   The following libraries provide various hardware acceleration features:
 322   --disable-amf            disable AMF video encoding code [autodetect]
 323   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 324   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
 325   --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
 326   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 327   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 328   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 329   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
 330   --enable-libdrm          enable DRM code (Linux) [no]
 331   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 332   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 333   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 334   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
 335   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 336   --enable-omx             enable OpenMAX IL code [no]
 337   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 338   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 339   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
 340   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 341   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 342   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 343
 344 Toolchain options:
 345   --arch=ARCH              select architecture [$arch]
 346   --cpu=CPU                select the minimum required CPU (affects
 347                            instruction selection, may crash on older CPUs)
 348   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 349   --progs-suffix=SUFFIX    program name suffix []
 350   --enable-cross-compile   assume a cross-compiler is used
 351   --sysroot=PATH           root of cross-build tree
 352   --sysinclude=PATH        location of cross-build system headers
 353   --target-os=OS           compiler targets OS [$target_os]
 354   --target-exec=CMD        command to run executables on target
 355   --target-path=DIR        path to view of build directory on target
 356   --target-samples=DIR     path to samples directory on target
 357   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 358   --toolchain=NAME         set tool defaults according to NAME
 359                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
 360                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
 361                            valgrind-massif, valgrind-memcheck,
 362                            msvc, icl, gcov, llvm-cov, hardened)
 363   --nm=NM                  use nm tool NM [$nm_default]
 364   --ar=AR                  use archive tool AR [$ar_default]
 365   --as=AS                  use assembler AS [$as_default]
 366   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 367   --strip=STRIP            use strip tool STRIP [$strip_default]
 368   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 369   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 370   --cc=CC                  use C compiler CC [$cc_default]
 371   --cxx=CXX                use C compiler CXX [$cxx_default]
 372   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 373   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 374   --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
 375   --ld=LD                  use linker LD [$ld_default]
 376   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 377   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 378   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 379   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 380   --host-cc=HOSTCC         use host C compiler HOSTCC
 381   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 382   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 383   --host-ld=HOSTLD         use host linker HOSTLD
 384   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 385   --host-extralibs=HLIBS   use libs HLIBS when linking for host
 386   --host-os=OS             compiler host OS [$target_os]
 387   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 388   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 389   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 390   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 391   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 392   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 393   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 394   --extra-version=STRING   version string suffix []
 395   --optflags=OPTFLAGS      override optimization-related compiler flags
 396   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 397   --build-suffix=SUFFIX    library name suffix []
 398   --enable-pic             build position-independent code
 399   --enable-thumb           compile for Thumb instruction set
 400   --enable-lto             use link-time optimization
 401   --env="ENV=override"     override the environment variables
 402
 403 Advanced options (experts only):
 404   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 405   --custom-allocator=NAME  use a supported custom allocator
 406   --disable-symver         disable symbol versioning
 407   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 408   --disable-safe-bitstream-reader
 409                            disable buffer boundary checking in bitreaders
 410                            (faster, but may crash)
 411   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 412
 413 Optimization options (experts only):
 414   --disable-asm            disable all assembly optimizations
 415   --disable-altivec        disable AltiVec optimizations
 416   --disable-vsx            disable VSX optimizations
 417   --disable-power8         disable POWER8 optimizations
 418   --disable-amd3dnow       disable 3DNow! optimizations
 419   --disable-amd3dnowext    disable 3DNow! extended optimizations
 420   --disable-mmx            disable MMX optimizations
 421   --disable-mmxext         disable MMXEXT optimizations
 422   --disable-sse            disable SSE optimizations
 423   --disable-sse2           disable SSE2 optimizations
 424   --disable-sse3           disable SSE3 optimizations
 425   --disable-ssse3          disable SSSE3 optimizations
 426   --disable-sse4           disable SSE4 optimizations
 427   --disable-sse42          disable SSE4.2 optimizations
 428   --disable-avx            disable AVX optimizations
 429   --disable-xop            disable XOP optimizations
 430   --disable-fma3           disable FMA3 optimizations
 431   --disable-fma4           disable FMA4 optimizations
 432   --disable-avx2           disable AVX2 optimizations
 433   --disable-avx512         disable AVX-512 optimizations
 434   --disable-aesni          disable AESNI optimizations
 435   --disable-armv5te        disable armv5te optimizations
 436   --disable-armv6          disable armv6 optimizations
 437   --disable-armv6t2        disable armv6t2 optimizations
 438   --disable-vfp            disable VFP optimizations
 439   --disable-neon           disable NEON optimizations
 440   --disable-inline-asm     disable use of inline assembly
 441   --disable-x86asm         disable use of standalone x86 assembly
 442   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 443   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 444   --disable-msa            disable MSA optimizations
 445   --disable-msa2           disable MSA2 optimizations
 446   --disable-mipsfpu        disable floating point MIPS optimizations
 447   --disable-mmi            disable Loongson SIMD optimizations
 448   --disable-fast-unaligned consider unaligned accesses slow
 449
 450 Developer options (useful when working on FFmpeg itself):
 451   --disable-debug          disable debugging symbols
 452   --enable-debug=LEVEL     set the debug level [$debuglevel]
 453   --disable-optimizations  disable compiler optimizations
 454   --enable-extra-warnings  enable more compiler warnings
 455   --disable-stripping      disable stripping of executables and shared libraries
 456   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 457                            2 causes a slowdown at runtime.
 458   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 459   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 460                            leaks and errors, using the specified valgrind binary.
 461                            Cannot be combined with --target-exec
 462   --enable-ftrapv          Trap arithmetic overflows
 463   --samples=PATH           location of test samples for FATE, if not set use
 464                            \$FATE_SAMPLES at make invocation time.
 465   --enable-neon-clobber-test check NEON registers for clobbering (should be
 466                            used only for debugging purposes)
 467   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 468                            should be used only for debugging purposes)
 469   --enable-random          randomly enable/disable components
 470   --disable-random
 471   --enable-random=LIST     randomly enable/disable specific components or
 472   --disable-random=LIST    component groups. LIST is a comma-separated list
 473                            of NAME[:PROB] entries where NAME is a component
 474                            (group) and PROB the probability associated with
 475                            NAME (default 0.5).
 476   --random-seed=VALUE      seed value for --enable/disable-random
 477   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 478                            (only applies to --disable-optimizations builds)
 479   --enable-ossfuzz         Enable building fuzzer tool
 480   --libfuzzer=PATH         path to libfuzzer
 481   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 482                            in the name) of tests whose result is ignored
 483   --enable-linux-perf      enable Linux Performance Monitor API
 484
 485 NOTE: Object files are built at the place where configure is launched.
 486 EOF
 487   exit 0
 488 }
 489
 490 if test -t 1 && which tput >/dev/null 2>&1; then
 491     ncolors=$(tput colors)
 492     if test -n "$ncolors" && test $ncolors -ge 8; then
 493         bold_color=$(tput bold)
 494         warn_color=$(tput setaf 3)
 495         error_color=$(tput setaf 1)
 496         reset_color=$(tput sgr0)
 497     fi
 498     # 72 used instead of 80 since that's the default of pr
 499     ncols=$(tput cols)
 500 fi
 501 : ${ncols:=72}
 502
 503 log(){
 504     echo "$@" >> $logfile
 505 }
 506
 507 log_file(){
 508     log BEGIN "$1"
 509     log_file_i=1
 510     while IFS= read -r log_file_line; do
 511         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
 512         log_file_i=$(($log_file_i+1))
 513     done < "$1" >> "$logfile"
 514     log END "$1"
 515 }
 516
 517 warn(){
 518     log "WARNING: $*"
 519     WARNINGS="${WARNINGS}WARNING: $*\n"
 520 }
 521
 522 die(){
 523     log "$@"
 524     echo "$error_color$bold_color$@$reset_color"
 525     cat <<EOF
 526
 527 If you think configure made a mistake, make sure you are using the latest
 528 version from Git.  If the latest version fails, report the problem to the
 529 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 530 EOF
 531     if disabled logging; then
 532         cat <<EOF
 533 Rerun configure with logging enabled (do not use --disable-logging), and
 534 include the log this produces with your report.
 535 EOF
 536     else
 537         cat <<EOF
 538 Include the log file "$logfile" produced by configure as this will help
 539 solve the problem.
 540 EOF
 541     fi
 542     exit 1
 543 }
 544
 545 # Avoid locale weirdness, besides we really just want to translate ASCII.
 546 toupper(){
 547     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 548 }
 549
 550 tolower(){
 551     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 552 }
 553
 554 c_escape(){
 555     echo "$*" | sed 's/["\\]/\\\0/g'
 556 }
 557
 558 sh_quote(){
 559     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 560     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 561     echo "$v"
 562 }
 563
 564 cleanws(){
 565     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 566 }
 567
 568 filter(){
 569     pat=$1
 570     shift
 571     for v; do
 572         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 573     done
 574 }
 575
 576 filter_out(){
 577     pat=$1
 578     shift
 579     for v; do
 580         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 581     done
 582 }
 583
 584 map(){
 585     m=$1
 586     shift
 587     for v; do eval $m; done
 588 }
 589
 590 add_suffix(){
 591     suffix=$1
 592     shift
 593     for v; do echo ${v}${suffix}; done
 594 }
 595
 596 remove_suffix(){
 597     suffix=$1
 598     shift
 599     for v; do echo ${v%$suffix}; done
 600 }
 601
 602 set_all(){
 603     value=$1
 604     shift
 605     for var in $*; do
 606         eval $var=$value
 607     done
 608 }
 609
 610 set_weak(){
 611     value=$1
 612     shift
 613     for var; do
 614         eval : \${$var:=$value}
 615     done
 616 }
 617
 618 sanitize_var_name(){
 619     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 620 }
 621
 622 set_sanitized(){
 623     var=$1
 624     shift
 625     eval $(sanitize_var_name "$var")='$*'
 626 }
 627
 628 get_sanitized(){
 629     eval echo \$$(sanitize_var_name "$1")
 630 }
 631
 632 pushvar(){
 633     for pvar in $*; do
 634         eval level=\${${pvar}_level:=0}
 635         eval ${pvar}_${level}="\$$pvar"
 636         eval ${pvar}_level=$(($level+1))
 637     done
 638 }
 639
 640 popvar(){
 641     for pvar in $*; do
 642         eval level=\${${pvar}_level:-0}
 643         test $level = 0 && continue
 644         eval level=$(($level-1))
 645         eval $pvar="\${${pvar}_${level}}"
 646         eval ${pvar}_level=$level
 647         eval unset ${pvar}_${level}
 648     done
 649 }
 650
 651 request(){
 652     for var in $*; do
 653         eval ${var}_requested=yes
 654         eval $var=
 655     done
 656 }
 657
 658 warn_if_gets_disabled(){
 659     for var in $*; do
 660         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
 661     done
 662 }
 663
 664 enable(){
 665     set_all yes $*
 666 }
 667
 668 disable(){
 669     set_all no $*
 670 }
 671
 672 disable_with_reason(){
 673     disable $1
 674     eval "${1}_disable_reason=\"$2\""
 675     if requested $1; then
 676         die "ERROR: $1 requested, but $2"
 677     fi
 678 }
 679
 680 enable_weak(){
 681     set_weak yes $*
 682 }
 683
 684 disable_weak(){
 685     set_weak no $*
 686 }
 687
 688 enable_sanitized(){
 689     for var; do
 690         enable $(sanitize_var_name $var)
 691     done
 692 }
 693
 694 disable_sanitized(){
 695     for var; do
 696         disable $(sanitize_var_name $var)
 697     done
 698 }
 699
 700 do_enable_deep(){
 701     for var; do
 702         enabled $var && continue
 703         set -- $var
 704         eval enable_deep \$${var}_select
 705         var=$1
 706         eval enable_deep_weak \$${var}_suggest
 707     done
 708 }
 709
 710 enable_deep(){
 711     do_enable_deep $*
 712     enable $*
 713 }
 714
 715 enable_deep_weak(){
 716     for var; do
 717         disabled $var && continue
 718         set -- $var
 719         do_enable_deep $var
 720         var=$1
 721         enable_weak $var
 722     done
 723 }
 724
 725 requested(){
 726     test "${1#!}" = "$1" && op="=" || op="!="
 727     eval test "x\$${1#!}_requested" $op "xyes"
 728 }
 729
 730 enabled(){
 731     test "${1#!}" = "$1" && op="=" || op="!="
 732     eval test "x\$${1#!}" $op "xyes"
 733 }
 734
 735 disabled(){
 736     test "${1#!}" = "$1" && op="=" || op="!="
 737     eval test "x\$${1#!}" $op "xno"
 738 }
 739
 740 enabled_all(){
 741     for opt; do
 742         enabled $opt || return 1
 743     done
 744 }
 745
 746 disabled_all(){
 747     for opt; do
 748         disabled $opt || return 1
 749     done
 750 }
 751
 752 enabled_any(){
 753     for opt; do
 754         enabled $opt && return 0
 755     done
 756 }
 757
 758 disabled_any(){
 759     for opt; do
 760         disabled $opt && return 0
 761     done
 762     return 1
 763 }
 764
 765 set_default(){
 766     for opt; do
 767         eval : \${$opt:=\$${opt}_default}
 768     done
 769 }
 770
 771 is_in(){
 772     value=$1
 773     shift
 774     for var in $*; do
 775         [ $var = $value ] && return 0
 776     done
 777     return 1
 778 }
 779
 780 # The cfg loop is very hot (several thousands iterations), and in bash also
 781 # potentialy quite slow. Try to abort the iterations early, preferably without
 782 # calling functions. 70%+ of the time cfg is already done or without deps.
 783 check_deps(){
 784     for cfg; do
 785         eval [ x\$${cfg}_checking = xdone ] && continue
 786         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
 787
 788         eval "
 789         dep_all=\$${cfg}_deps
 790         dep_any=\$${cfg}_deps_any
 791         dep_con=\$${cfg}_conflict
 792         dep_sel=\$${cfg}_select
 793         dep_sgs=\$${cfg}_suggest
 794         dep_ifa=\$${cfg}_if
 795         dep_ifn=\$${cfg}_if_any
 796         "
 797
 798         # most of the time here $cfg has no deps - avoid costly no-op work
 799         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
 800             eval ${cfg}_checking=inprogress
 801
 802             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
 803             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 804             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
 805
 806             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 807             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 808             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
 809             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
 810             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
 811             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
 812
 813             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 814
 815             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 816                 # filter out library deps, these do not belong in extralibs
 817                 is_in $dep $LIBRARY_LIST && continue
 818                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 819             done
 820         fi
 821
 822         eval ${cfg}_checking=done
 823     done
 824 }
 825
 826 print_config(){
 827     pfx=$1
 828     files=$2
 829     shift 2
 830     map 'eval echo "$v \${$v:-no}"' "$@" |
 831     awk "BEGIN { split(\"$files\", files) }
 832         {
 833             c = \"$pfx\" toupper(\$1);
 834             v = \$2;
 835             sub(/yes/, 1, v);
 836             sub(/no/,  0, v);
 837             for (f in files) {
 838                 file = files[f];
 839                 if (file ~ /\\.h\$/) {
 840                     printf(\"#define %s %d\\n\", c, v) >>file;
 841                 } else if (file ~ /\\.asm\$/) {
 842                     printf(\"%%define %s %d\\n\", c, v) >>file;
 843                 } else if (file ~ /\\.mak\$/) {
 844                     n = -v ? \"\" : \"!\";
 845                     printf(\"%s%s=yes\\n\", n, c) >>file;
 846                 } else if (file ~ /\\.texi\$/) {
 847                     pre = -v ? \"\" : \"@c \";
 848                     yesno = \$2;
 849                     c2 = tolower(c);
 850                     gsub(/_/, \"-\", c2);
 851                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 852                 }
 853             }
 854         }"
 855 }
 856
 857 print_enabled(){
 858     suf=$1
 859     shift
 860     for v; do
 861         enabled $v && printf "%s\n" ${v%$suf}
 862     done
 863 }
 864
 865 append(){
 866     var=$1
 867     shift
 868     eval "$var=\"\$$var $*\""
 869 }
 870
 871 prepend(){
 872     var=$1
 873     shift
 874     eval "$var=\"$* \$$var\""
 875 }
 876
 877 reverse () {
 878     eval '
 879         reverse_out=
 880         for v in $'$1'; do
 881             reverse_out="$v $reverse_out"
 882         done
 883         '$1'=$reverse_out
 884     '
 885 }
 886
 887 # keeps the last occurence of each non-unique item
 888 unique(){
 889     unique_out=
 890     eval unique_in=\$$1
 891     reverse unique_in
 892     for v in $unique_in; do
 893         # " $unique_out" +space such that every item is surrounded with spaces
 894         case " $unique_out" in *" $v "*) continue; esac  # already in list
 895         unique_out="$unique_out$v "
 896     done
 897     reverse unique_out
 898     eval $1=\$unique_out
 899 }
 900
 901 resolve(){
 902     resolve_out=
 903     eval resolve_in=\$$1
 904     for v in $resolve_in; do
 905         eval 'resolve_out="$resolve_out$'$v' "'
 906     done
 907     eval $1=\$resolve_out
 908 }
 909
 910 add_cppflags(){
 911     append CPPFLAGS "$@"
 912 }
 913
 914 add_cflags(){
 915     append CFLAGS $($cflags_filter "$@")
 916 }
 917
 918 add_cflags_headers(){
 919     append CFLAGS_HEADERS $($cflags_filter "$@")
 920 }
 921
 922 add_cxxflags(){
 923     append CXXFLAGS $($cflags_filter "$@")
 924 }
 925
 926 add_objcflags(){
 927     append OBJCFLAGS $($objcflags_filter "$@")
 928 }
 929
 930 add_asflags(){
 931     append ASFLAGS $($asflags_filter "$@")
 932 }
 933
 934 add_ldflags(){
 935     append LDFLAGS $($ldflags_filter "$@")
 936 }
 937
 938 add_ldexeflags(){
 939     append LDEXEFLAGS $($ldflags_filter "$@")
 940 }
 941
 942 add_ldsoflags(){
 943     append LDSOFLAGS $($ldflags_filter "$@")
 944 }
 945
 946 add_extralibs(){
 947     prepend extralibs $($ldflags_filter "$@")
 948 }
 949
 950 add_stripflags(){
 951     append ASMSTRIPFLAGS "$@"
 952 }
 953
 954 add_host_cppflags(){
 955     append host_cppflags "$@"
 956 }
 957
 958 add_host_cflags(){
 959     append host_cflags $($host_cflags_filter "$@")
 960 }
 961
 962 add_host_ldflags(){
 963     append host_ldflags $($host_ldflags_filter "$@")
 964 }
 965
 966 add_compat(){
 967     append compat_objs $1
 968     shift
 969     map 'add_cppflags -D$v' "$@"
 970 }
 971
 972 test_cmd(){
 973     log "$@"
 974     "$@" >> $logfile 2>&1
 975 }
 976
 977 test_stat(){
 978     log test_stat "$@"
 979     stat "$1" >> $logfile 2>&1
 980 }
 981
 982 cc_e(){
 983     eval printf '%s\\n' $CC_E
 984 }
 985
 986 cc_o(){
 987     eval printf '%s\\n' $CC_O
 988 }
 989
 990 as_o(){
 991     eval printf '%s\\n' $AS_O
 992 }
 993
 994 x86asm_o(){
 995     eval printf '%s\\n' $X86ASM_O
 996 }
 997
 998 ld_o(){
 999     eval printf '%s\\n' $LD_O
1000 }
1001
1002 hostcc_e(){
1003     eval printf '%s\\n' $HOSTCC_E
1004 }
1005
1006 hostcc_o(){
1007     eval printf '%s\\n' $HOSTCC_O
1008 }
1009
1010 nvcc_o(){
1011     eval printf '%s\\n' $NVCC_O
1012 }
1013
1014 test_cc(){
1015     log test_cc "$@"
1016     cat > $TMPC
1017     log_file $TMPC
1018     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1019 }
1020
1021 test_cxx(){
1022     log test_cxx "$@"
1023     cat > $TMPCPP
1024     log_file $TMPCPP
1025     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1026 }
1027
1028 test_objcc(){
1029     log test_objcc "$@"
1030     cat > $TMPM
1031     log_file $TMPM
1032     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1033 }
1034
1035 test_nvcc(){
1036     log test_nvcc "$@"
1037     cat > $TMPCU
1038     log_file $TMPCU
1039     tmpcu_=$TMPCU
1040     tmpo_=$TMPO
1041     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1042     test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1043 }
1044
1045 check_nvcc() {
1046     log check_nvcc "$@"
1047     name=$1
1048     shift 1
1049     disabled $name && return
1050     disable $name
1051     test_nvcc "$@" <<EOF && enable $name
1052 extern "C" {
1053     __global__ void hello(unsigned char *data) {}
1054 }
1055 EOF
1056 }
1057
1058 test_cpp(){
1059     log test_cpp "$@"
1060     cat > $TMPC
1061     log_file $TMPC
1062     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1063 }
1064
1065 test_as(){
1066     log test_as "$@"
1067     cat > $TMPS
1068     log_file $TMPS
1069     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1070 }
1071
1072 test_x86asm(){
1073     log test_x86asm "$@"
1074     echo "$1" > $TMPASM
1075     log_file $TMPASM
1076     shift
1077     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1078 }
1079
1080 check_cmd(){
1081     log check_cmd "$@"
1082     cmd=$1
1083     disabled $cmd && return
1084     disable $cmd
1085     test_cmd $@ && enable $cmd
1086 }
1087
1088 check_as(){
1089     log check_as "$@"
1090     name=$1
1091     code=$2
1092     shift 2
1093     disable $name
1094     test_as $@ <<EOF && enable $name
1095 $code
1096 EOF
1097 }
1098
1099 check_inline_asm(){
1100     log check_inline_asm "$@"
1101     name="$1"
1102     code="$2"
1103     shift 2
1104     disable $name
1105     test_cc "$@" <<EOF && enable $name
1106 void foo(void){ __asm__ volatile($code); }
1107 EOF
1108 }
1109
1110 check_inline_asm_flags(){
1111     log check_inline_asm_flags "$@"
1112     name="$1"
1113     code="$2"
1114     flags=''
1115     shift 2
1116     while [ "$1" != "" ]; do
1117       append flags $1
1118       shift
1119     done;
1120     disable $name
1121     cat > $TMPC <<EOF
1122 void foo(void){ __asm__ volatile($code); }
1123 EOF
1124     log_file $TMPC
1125     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1126     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1127 }
1128
1129 check_insn(){
1130     log check_insn "$@"
1131     check_inline_asm ${1}_inline "\"$2\""
1132     check_as ${1}_external "$2"
1133 }
1134
1135 check_x86asm(){
1136     log check_x86asm "$@"
1137     name=$1
1138     shift
1139     disable $name
1140     test_x86asm "$@" && enable $name
1141 }
1142
1143 test_ld(){
1144     log test_ld "$@"
1145     type=$1
1146     shift 1
1147     flags=$(filter_out '-l*|*.so' $@)
1148     libs=$(filter '-l*|*.so' $@)
1149     test_$type $($cflags_filter $flags) || return
1150     flags=$($ldflags_filter $flags)
1151     libs=$($ldflags_filter $libs)
1152     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1153 }
1154
1155 check_ld(){
1156     log check_ld "$@"
1157     type=$1
1158     name=$2
1159     shift 2
1160     disable $name
1161     test_ld $type $@ && enable $name
1162 }
1163
1164 print_include(){
1165     hdr=$1
1166     test "${hdr%.h}" = "${hdr}" &&
1167         echo "#include $hdr"    ||
1168         echo "#include <$hdr>"
1169 }
1170
1171 test_code(){
1172     log test_code "$@"
1173     check=$1
1174     headers=$2
1175     code=$3
1176     shift 3
1177     {
1178         for hdr in $headers; do
1179             print_include $hdr
1180         done
1181         echo "int main(void) { $code; return 0; }"
1182     } | test_$check "$@"
1183 }
1184
1185 check_cppflags(){
1186     log check_cppflags "$@"
1187     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1188 #include <stdlib.h>
1189 EOF
1190 }
1191
1192 test_cflags(){
1193     log test_cflags "$@"
1194     set -- $($cflags_filter "$@")
1195     test_cc "$@" <<EOF
1196 int x;
1197 EOF
1198 }
1199
1200 check_cflags(){
1201     log check_cflags "$@"
1202     test_cflags "$@" && add_cflags "$@"
1203 }
1204
1205 check_cxxflags(){
1206     log check_cxxflags "$@"
1207     set -- $($cflags_filter "$@")
1208     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1209 int x;
1210 EOF
1211 }
1212
1213 test_objcflags(){
1214     log test_objcflags "$@"
1215     set -- $($objcflags_filter "$@")
1216     test_objcc "$@" <<EOF
1217 int x;
1218 EOF
1219 }
1220
1221 check_objcflags(){
1222     log check_objcflags "$@"
1223     test_objcflags "$@" && add_objcflags "$@"
1224 }
1225
1226 test_ldflags(){
1227     log test_ldflags "$@"
1228     set -- $($ldflags_filter "$@")
1229     test_ld "cc" "$@" <<EOF
1230 int main(void){ return 0; }
1231 EOF
1232 }
1233
1234 check_ldflags(){
1235     log check_ldflags "$@"
1236     test_ldflags "$@" && add_ldflags "$@"
1237 }
1238
1239 test_stripflags(){
1240     log test_stripflags "$@"
1241     # call test_cc to get a fresh TMPO
1242     test_cc <<EOF
1243 int main(void) { return 0; }
1244 EOF
1245     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1246 }
1247
1248 check_stripflags(){
1249     log check_stripflags "$@"
1250     test_stripflags "$@" && add_stripflags "$@"
1251 }
1252
1253 check_headers(){
1254     log check_headers "$@"
1255     headers=$1
1256     shift
1257     disable_sanitized $headers
1258     {
1259         for hdr in $headers; do
1260             print_include $hdr
1261         done
1262         echo "int x;"
1263     } | test_cpp "$@" && enable_sanitized $headers
1264 }
1265
1266 check_header_objcc(){
1267     log check_header_objcc "$@"
1268     rm -f -- "$TMPO"
1269     header=$1
1270     shift
1271     disable_sanitized $header
1272     {
1273        echo "#include <$header>"
1274        echo "int main(void) { return 0; }"
1275     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1276 }
1277
1278 check_apple_framework(){
1279     log check_apple_framework "$@"
1280     framework="$1"
1281     name="$(tolower $framework)"
1282     header="${framework}/${framework}.h"
1283     disable $name
1284     check_header_objcc $header &&
1285         enable $name && eval ${name}_extralibs='"-framework $framework"'
1286 }
1287
1288 check_func(){
1289     log check_func "$@"
1290     func=$1
1291     shift
1292     disable $func
1293     test_ld "cc" "$@" <<EOF && enable $func
1294 extern int $func();
1295 int main(void){ $func(); }
1296 EOF
1297 }
1298
1299 check_complexfunc(){
1300     log check_complexfunc "$@"
1301     func=$1
1302     narg=$2
1303     shift 2
1304     test $narg = 2 && args="f, g" || args="f * I"
1305     disable $func
1306     test_ld "cc" "$@" <<EOF && enable $func
1307 #include <complex.h>
1308 #include <math.h>
1309 float foo(complex float f, complex float g) { return $func($args); }
1310 int main(void){ return (int) foo; }
1311 EOF
1312 }
1313
1314 check_mathfunc(){
1315     log check_mathfunc "$@"
1316     func=$1
1317     narg=$2
1318     shift 2
1319     test $narg = 2 && args="f, g" || args="f"
1320     disable $func
1321     test_ld "cc" "$@" <<EOF && enable $func
1322 #include <math.h>
1323 float foo(float f, float g) { return $func($args); }
1324 int main(void){ return (int) foo; }
1325 EOF
1326 }
1327
1328 check_func_headers(){
1329     log check_func_headers "$@"
1330     headers=$1
1331     funcs=$2
1332     shift 2
1333     {
1334         for hdr in $headers; do
1335             print_include $hdr
1336         done
1337         echo "#include <stdint.h>"
1338         for func in $funcs; do
1339             echo "long check_$func(void) { return (long) $func; }"
1340         done
1341         echo "int main(void) { int ret = 0;"
1342         # LTO could optimize out the test functions without this
1343         for func in $funcs; do
1344             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1345         done
1346         echo "return ret; }"
1347     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1348 }
1349
1350 check_class_headers_cpp(){
1351     log check_class_headers_cpp "$@"
1352     headers=$1
1353     classes=$2
1354     shift 2
1355     {
1356         for hdr in $headers; do
1357             echo "#include <$hdr>"
1358         done
1359         echo "int main(void) { "
1360         i=1
1361         for class in $classes; do
1362             echo "$class obj$i;"
1363             i=$(expr $i + 1)
1364         done
1365         echo "return 0; }"
1366     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1367 }
1368
1369 test_cpp_condition(){
1370     log test_cpp_condition "$@"
1371     header=$1
1372     condition=$2
1373     shift 2
1374     test_cpp "$@" <<EOF
1375 #include <$header>
1376 #if !($condition)
1377 #error "unsatisfied condition: $condition"
1378 #endif
1379 EOF
1380 }
1381
1382 check_cpp_condition(){
1383     log check_cpp_condition "$@"
1384     name=$1
1385     shift 1
1386     disable $name
1387     test_cpp_condition "$@" && enable $name
1388 }
1389
1390 test_cflags_cc(){
1391     log test_cflags_cc "$@"
1392     flags=$1
1393     header=$2
1394     condition=$3
1395     shift 3
1396     set -- $($cflags_filter "$flags")
1397     test_cc "$@" <<EOF
1398 #include <$header>
1399 #if !($condition)
1400 #error "unsatisfied condition: $condition"
1401 #endif
1402 EOF
1403 }
1404
1405 check_lib(){
1406     log check_lib "$@"
1407     name="$1"
1408     headers="$2"
1409     funcs="$3"
1410     shift 3
1411     disable $name
1412     check_func_headers "$headers" "$funcs" "$@" &&
1413         enable $name && eval ${name}_extralibs="\$@"
1414 }
1415
1416 check_lib_cpp(){
1417     log check_lib_cpp "$@"
1418     name="$1"
1419     headers="$2"
1420     classes="$3"
1421     shift 3
1422     disable $name
1423     check_class_headers_cpp "$headers" "$classes" "$@" &&
1424         enable $name && eval ${name}_extralibs="\$@"
1425 }
1426
1427 test_pkg_config(){
1428     log test_pkg_config "$@"
1429     name="$1"
1430     pkg_version="$2"
1431     pkg="${2%% *}"
1432     headers="$3"
1433     funcs="$4"
1434     shift 4
1435     disable $name
1436     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1437     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1438     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1439     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1440         enable $name &&
1441         set_sanitized "${name}_cflags"    $pkg_cflags &&
1442         set_sanitized "${name}_extralibs" $pkg_libs
1443 }
1444
1445 check_pkg_config(){
1446     log check_pkg_config "$@"
1447     name="$1"
1448     test_pkg_config "$@" &&
1449         eval add_cflags \$${name}_cflags
1450 }
1451
1452 test_exec(){
1453     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1454 }
1455
1456 check_exec_crash(){
1457     log check_exec_crash "$@"
1458     code=$(cat)
1459
1460     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1461     # are safe but may not be available everywhere.  Thus we use
1462     # raise(SIGTERM) instead.  The check is run in a subshell so we
1463     # can redirect the "Terminated" message from the shell.  SIGBUS
1464     # is not defined by standard C so it is used conditionally.
1465
1466     (test_exec "$@") >> $logfile 2>&1 <<EOF
1467 #include <signal.h>
1468 static void sighandler(int sig){
1469     raise(SIGTERM);
1470 }
1471 int foo(void){
1472     $code
1473 }
1474 int (*func_ptr)(void) = foo;
1475 int main(void){
1476     signal(SIGILL, sighandler);
1477     signal(SIGFPE, sighandler);
1478     signal(SIGSEGV, sighandler);
1479 #ifdef SIGBUS
1480     signal(SIGBUS, sighandler);
1481 #endif
1482     return func_ptr();
1483 }
1484 EOF
1485 }
1486
1487 check_type(){
1488     log check_type "$@"
1489     headers=$1
1490     type=$2
1491     shift 2
1492     disable_sanitized "$type"
1493     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1494 }
1495
1496 check_struct(){
1497     log check_struct "$@"
1498     headers=$1
1499     struct=$2
1500     member=$3
1501     shift 3
1502     disable_sanitized "${struct}_${member}"
1503     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1504         enable_sanitized "${struct}_${member}"
1505 }
1506
1507 check_builtin(){
1508     log check_builtin "$@"
1509     name=$1
1510     headers=$2
1511     builtin=$3
1512     shift 3
1513     disable "$name"
1514     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1515 }
1516
1517 check_compile_assert(){
1518     log check_compile_assert "$@"
1519     name=$1
1520     headers=$2
1521     condition=$3
1522     shift 3
1523     disable "$name"
1524     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1525 }
1526
1527 check_cc(){
1528     log check_cc "$@"
1529     name=$1
1530     shift
1531     disable "$name"
1532     test_code cc "$@" && enable "$name"
1533 }
1534
1535 require(){
1536     log require "$@"
1537     name_version="$1"
1538     name="${1%% *}"
1539     shift
1540     check_lib $name "$@" || die "ERROR: $name_version not found"
1541 }
1542
1543 require_cc(){
1544     log require_cc "$@"
1545     name="$1"
1546     check_cc "$@" || die "ERROR: $name failed"
1547 }
1548
1549 require_cpp(){
1550     name="$1"
1551     headers="$2"
1552     classes="$3"
1553     shift 3
1554     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1555 }
1556
1557 require_headers(){
1558     log require_headers "$@"
1559     headers="$1"
1560     check_headers "$@" || die "ERROR: $headers not found"
1561 }
1562
1563 require_cpp_condition(){
1564     log require_cpp_condition "$@"
1565     condition="$3"
1566     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1567 }
1568
1569 require_pkg_config(){
1570     log require_pkg_config "$@"
1571     pkg_version="$2"
1572     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1573 }
1574
1575 test_host_cc(){
1576     log test_host_cc "$@"
1577     cat > $TMPC
1578     log_file $TMPC
1579     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1580 }
1581
1582 test_host_cpp(){
1583     log test_host_cpp "$@"
1584     cat > $TMPC
1585     log_file $TMPC
1586     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1587 }
1588
1589 check_host_cppflags(){
1590     log check_host_cppflags "$@"
1591     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1592 #include <stdlib.h>
1593 EOF
1594 }
1595
1596 check_host_cflags(){
1597     log check_host_cflags "$@"
1598     set -- $($host_cflags_filter "$@")
1599     test_host_cc "$@" <<EOF && append host_cflags "$@"
1600 int x;
1601 EOF
1602 }
1603
1604 test_host_cpp_condition(){
1605     log test_host_cpp_condition "$@"
1606     header=$1
1607     condition=$2
1608     shift 2
1609     test_host_cpp "$@" <<EOF
1610 #include <$header>
1611 #if !($condition)
1612 #error "unsatisfied condition: $condition"
1613 #endif
1614 EOF
1615 }
1616
1617 check_host_cpp_condition(){
1618     log check_host_cpp_condition "$@"
1619     name=$1
1620     shift 1
1621     disable $name
1622     test_host_cpp_condition "$@" && enable $name
1623 }
1624
1625 cp_if_changed(){
1626     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1627     mkdir -p "$(dirname $2)"
1628     cp -f "$1" "$2"
1629 }
1630
1631 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1632 # system-dependent things.
1633
1634 AVCODEC_COMPONENTS="
1635     bsfs
1636     decoders
1637     encoders
1638     hwaccels
1639     parsers
1640 "
1641
1642 AVDEVICE_COMPONENTS="
1643     indevs
1644     outdevs
1645 "
1646
1647 AVFILTER_COMPONENTS="
1648     filters
1649 "
1650
1651 AVFORMAT_COMPONENTS="
1652     demuxers
1653     muxers
1654     protocols
1655 "
1656
1657 COMPONENT_LIST="
1658     $AVCODEC_COMPONENTS
1659     $AVDEVICE_COMPONENTS
1660     $AVFILTER_COMPONENTS
1661     $AVFORMAT_COMPONENTS
1662 "
1663
1664 EXAMPLE_LIST="
1665     avio_dir_cmd_example
1666     avio_reading_example
1667     decode_audio_example
1668     decode_video_example
1669     demuxing_decoding_example
1670     encode_audio_example
1671     encode_video_example
1672     extract_mvs_example
1673     filter_audio_example
1674     filtering_audio_example
1675     filtering_video_example
1676     http_multiclient_example
1677     hw_decode_example
1678     metadata_example
1679     muxing_example
1680     qsvdec_example
1681     remuxing_example
1682     resampling_audio_example
1683     scaling_video_example
1684     transcode_aac_example
1685     transcoding_example
1686     vaapi_encode_example
1687     vaapi_transcode_example
1688 "
1689
1690 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1691     alsa
1692     appkit
1693     avfoundation
1694     bzlib
1695     coreimage
1696     iconv
1697     libxcb
1698     libxcb_shm
1699     libxcb_shape
1700     libxcb_xfixes
1701     lzma
1702     schannel
1703     sdl2
1704     securetransport
1705     sndio
1706     xlib
1707     zlib
1708 "
1709
1710 EXTERNAL_LIBRARY_GPL_LIST="
1711     avisynth
1712     frei0r
1713     libcdio
1714     libdavs2
1715     librubberband
1716     libvidstab
1717     libx264
1718     libx265
1719     libxavs
1720     libxavs2
1721     libxvid
1722 "
1723
1724 EXTERNAL_LIBRARY_NONFREE_LIST="
1725     decklink
1726     libfdk_aac
1727     openssl
1728     libtls
1729 "
1730
1731 EXTERNAL_LIBRARY_VERSION3_LIST="
1732     gmp
1733     libaribb24
1734     liblensfun
1735     libopencore_amrnb
1736     libopencore_amrwb
1737     libvmaf
1738     libvo_amrwbenc
1739     mbedtls
1740     rkmpp
1741 "
1742
1743 EXTERNAL_LIBRARY_GPLV3_LIST="
1744     libsmbclient
1745 "
1746
1747 EXTERNAL_LIBRARY_LIST="
1748     $EXTERNAL_LIBRARY_GPL_LIST
1749     $EXTERNAL_LIBRARY_NONFREE_LIST
1750     $EXTERNAL_LIBRARY_VERSION3_LIST
1751     $EXTERNAL_LIBRARY_GPLV3_LIST
1752     chromaprint
1753     gcrypt
1754     gnutls
1755     jni
1756     ladspa
1757     libaom
1758     libass
1759     libbluray
1760     libbs2b
1761     libcaca
1762     libcelt
1763     libcodec2
1764     libdav1d
1765     libdc1394
1766     libdrm
1767     libflite
1768     libfontconfig
1769     libfreetype
1770     libfribidi
1771     libgme
1772     libgsm
1773     libiec61883
1774     libilbc
1775     libjack
1776     libklvanc
1777     libkvazaar
1778     libmodplug
1779     libmp3lame
1780     libmysofa
1781     libopencv
1782     libopenh264
1783     libopenjpeg
1784     libopenmpt
1785     libopus
1786     libpulse
1787     librsvg
1788     librtmp
1789     libshine
1790     libsmbclient
1791     libsnappy
1792     libsoxr
1793     libspeex
1794     libsrt
1795     libssh
1796     libtensorflow
1797     libtesseract
1798     libtheora
1799     libtwolame
1800     libv4l2
1801     libvorbis
1802     libvpx
1803     libwavpack
1804     libwebp
1805     libxml2
1806     libzimg
1807     libzmq
1808     libzvbi
1809     lv2
1810     mediacodec
1811     openal
1812     opengl
1813     pocketsphinx
1814     vapoursynth
1815 "
1816
1817 HWACCEL_AUTODETECT_LIBRARY_LIST="
1818     amf
1819     audiotoolbox
1820     crystalhd
1821     cuda
1822     cuda_llvm
1823     cuvid
1824     d3d11va
1825     dxva2
1826     ffnvcodec
1827     nvdec
1828     nvenc
1829     vaapi
1830     vdpau
1831     videotoolbox
1832     v4l2_m2m
1833     xvmc
1834 "
1835
1836 # catchall list of things that require external libs to link
1837 EXTRALIBS_LIST="
1838     cpu_init
1839     cws2fws
1840 "
1841
1842 HWACCEL_LIBRARY_NONFREE_LIST="
1843     cuda_nvcc
1844     cuda_sdk
1845     libnpp
1846 "
1847
1848 HWACCEL_LIBRARY_LIST="
1849     $HWACCEL_LIBRARY_NONFREE_LIST
1850     libmfx
1851     mmal
1852     omx
1853     opencl
1854 "
1855
1856 DOCUMENT_LIST="
1857     doc
1858     htmlpages
1859     manpages
1860     podpages
1861     txtpages
1862 "
1863
1864 FEATURE_LIST="
1865     ftrapv
1866     gray
1867     hardcoded_tables
1868     omx_rpi
1869     runtime_cpudetect
1870     safe_bitstream_reader
1871     shared
1872     small
1873     static
1874     swscale_alpha
1875 "
1876
1877 # this list should be kept in linking order
1878 LIBRARY_LIST="
1879     avdevice
1880     avfilter
1881     swscale
1882     postproc
1883     avformat
1884     avcodec
1885     swresample
1886     avresample
1887     avutil
1888 "
1889
1890 LICENSE_LIST="
1891     gpl
1892     nonfree
1893     version3
1894 "
1895
1896 PROGRAM_LIST="
1897     ffplay
1898     ffprobe
1899     ffmpeg
1900 "
1901
1902 SUBSYSTEM_LIST="
1903     dct
1904     dwt
1905     error_resilience
1906     faan
1907     fast_unaligned
1908     fft
1909     lsp
1910     lzo
1911     mdct
1912     pixelutils
1913     network
1914     rdft
1915 "
1916
1917 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1918 CONFIG_LIST="
1919     $DOCUMENT_LIST
1920     $EXAMPLE_LIST
1921     $EXTERNAL_LIBRARY_LIST
1922     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1923     $HWACCEL_LIBRARY_LIST
1924     $HWACCEL_AUTODETECT_LIBRARY_LIST
1925     $FEATURE_LIST
1926     $LICENSE_LIST
1927     $LIBRARY_LIST
1928     $PROGRAM_LIST
1929     $SUBSYSTEM_LIST
1930     autodetect
1931     fontconfig
1932     linux_perf
1933     memory_poisoning
1934     neon_clobber_test
1935     ossfuzz
1936     pic
1937     thumb
1938     valgrind_backtrace
1939     xmm_clobber_test
1940     $COMPONENT_LIST
1941 "
1942
1943 THREADS_LIST="
1944     pthreads
1945     os2threads
1946     w32threads
1947 "
1948
1949 ATOMICS_LIST="
1950     atomics_gcc
1951     atomics_suncc
1952     atomics_win32
1953 "
1954
1955 AUTODETECT_LIBS="
1956     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1957     $HWACCEL_AUTODETECT_LIBRARY_LIST
1958     $THREADS_LIST
1959 "
1960
1961 ARCH_LIST="
1962     aarch64
1963     alpha
1964     arm
1965     avr32
1966     avr32_ap
1967     avr32_uc
1968     bfin
1969     ia64
1970     m68k
1971     mips
1972     mips64
1973     parisc
1974     ppc
1975     ppc64
1976     s390
1977     sh4
1978     sparc
1979     sparc64
1980     tilegx
1981     tilepro
1982     tomi
1983     x86
1984     x86_32
1985     x86_64
1986 "
1987
1988 ARCH_EXT_LIST_ARM="
1989     armv5te
1990     armv6
1991     armv6t2
1992     armv8
1993     neon
1994     vfp
1995     vfpv3
1996     setend
1997 "
1998
1999 ARCH_EXT_LIST_MIPS="
2000     mipsfpu
2001     mips32r2
2002     mips32r5
2003     mips64r2
2004     mips32r6
2005     mips64r6
2006     mipsdsp
2007     mipsdspr2
2008     msa
2009     msa2
2010 "
2011
2012 ARCH_EXT_LIST_LOONGSON="
2013     loongson2
2014     loongson3
2015     mmi
2016 "
2017
2018 ARCH_EXT_LIST_X86_SIMD="
2019     aesni
2020     amd3dnow
2021     amd3dnowext
2022     avx
2023     avx2
2024     avx512
2025     fma3
2026     fma4
2027     mmx
2028     mmxext
2029     sse
2030     sse2
2031     sse3
2032     sse4
2033     sse42
2034     ssse3
2035     xop
2036 "
2037
2038 ARCH_EXT_LIST_PPC="
2039     altivec
2040     dcbzl
2041     ldbrx
2042     power8
2043     ppc4xx
2044     vsx
2045 "
2046
2047 ARCH_EXT_LIST_X86="
2048     $ARCH_EXT_LIST_X86_SIMD
2049     cpunop
2050     i686
2051 "
2052
2053 ARCH_EXT_LIST="
2054     $ARCH_EXT_LIST_ARM
2055     $ARCH_EXT_LIST_PPC
2056     $ARCH_EXT_LIST_X86
2057     $ARCH_EXT_LIST_MIPS
2058     $ARCH_EXT_LIST_LOONGSON
2059 "
2060
2061 ARCH_FEATURES="
2062     aligned_stack
2063     fast_64bit
2064     fast_clz
2065     fast_cmov
2066     local_aligned
2067     simd_align_16
2068     simd_align_32
2069     simd_align_64
2070 "
2071
2072 BUILTIN_LIST="
2073     atomic_cas_ptr
2074     machine_rw_barrier
2075     MemoryBarrier
2076     mm_empty
2077     rdtsc
2078     sem_timedwait
2079     sync_val_compare_and_swap
2080 "
2081 HAVE_LIST_CMDLINE="
2082     inline_asm
2083     symver
2084     x86asm
2085 "
2086
2087 HAVE_LIST_PUB="
2088     bigendian
2089     fast_unaligned
2090 "
2091
2092 HEADERS_LIST="
2093     arpa_inet_h
2094     asm_types_h
2095     cdio_paranoia_h
2096     cdio_paranoia_paranoia_h
2097     cuda_h
2098     dispatch_dispatch_h
2099     dev_bktr_ioctl_bt848_h
2100     dev_bktr_ioctl_meteor_h
2101     dev_ic_bt8xx_h
2102     dev_video_bktr_ioctl_bt848_h
2103     dev_video_meteor_ioctl_meteor_h
2104     direct_h
2105     dirent_h
2106     dxgidebug_h
2107     dxva_h
2108     ES2_gl_h
2109     gsm_h
2110     io_h
2111     linux_perf_event_h
2112     machine_ioctl_bt848_h
2113     machine_ioctl_meteor_h
2114     malloc_h
2115     opencv2_core_core_c_h
2116     OpenGL_gl3_h
2117     poll_h
2118     sys_param_h
2119     sys_resource_h
2120     sys_select_h
2121     sys_soundcard_h
2122     sys_time_h
2123     sys_un_h
2124     sys_videoio_h
2125     termios_h
2126     udplite_h
2127     unistd_h
2128     valgrind_valgrind_h
2129     windows_h
2130     winsock2_h
2131 "
2132
2133 INTRINSICS_LIST="
2134     intrinsics_neon
2135 "
2136
2137 COMPLEX_FUNCS="
2138     cabs
2139     cexp
2140 "
2141
2142 MATH_FUNCS="
2143     atanf
2144     atan2f
2145     cbrt
2146     cbrtf
2147     copysign
2148     cosf
2149     erf
2150     exp2
2151     exp2f
2152     expf
2153     hypot
2154     isfinite
2155     isinf
2156     isnan
2157     ldexpf
2158     llrint
2159     llrintf
2160     log2
2161     log2f
2162     log10f
2163     lrint
2164     lrintf
2165     powf
2166     rint
2167     round
2168     roundf
2169     sinf
2170     trunc
2171     truncf
2172 "
2173
2174 SYSTEM_FEATURES="
2175     dos_paths
2176     libc_msvcrt
2177     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2178     section_data_rel_ro
2179     threads
2180     uwp
2181     winrt
2182 "
2183
2184 SYSTEM_FUNCS="
2185     access
2186     aligned_malloc
2187     arc4random
2188     clock_gettime
2189     closesocket
2190     CommandLineToArgvW
2191     fcntl
2192     getaddrinfo
2193     gethrtime
2194     getopt
2195     GetProcessAffinityMask
2196     GetProcessMemoryInfo
2197     GetProcessTimes
2198     getrusage
2199     GetSystemTimeAsFileTime
2200     gettimeofday
2201     glob
2202     glXGetProcAddress
2203     gmtime_r
2204     inet_aton
2205     isatty
2206     kbhit
2207     localtime_r
2208     lstat
2209     lzo1x_999_compress
2210     mach_absolute_time
2211     MapViewOfFile
2212     memalign
2213     mkstemp
2214     mmap
2215     mprotect
2216     nanosleep
2217     PeekNamedPipe
2218     posix_memalign
2219     pthread_cancel
2220     sched_getaffinity
2221     SecItemImport
2222     SetConsoleTextAttribute
2223     SetConsoleCtrlHandler
2224     setmode
2225     setrlimit
2226     Sleep
2227     strerror_r
2228     sysconf
2229     sysctl
2230     usleep
2231     UTGetOSTypeFromString
2232     VirtualAlloc
2233     wglGetProcAddress
2234 "
2235
2236 SYSTEM_LIBRARIES="
2237     bcrypt
2238     vaapi_drm
2239     vaapi_x11
2240     vdpau_x11
2241 "
2242
2243 TOOLCHAIN_FEATURES="
2244     as_arch_directive
2245     as_dn_directive
2246     as_fpu_directive
2247     as_func
2248     as_object_arch
2249     asm_mod_q
2250     blocks_extension
2251     ebp_available
2252     ebx_available
2253     gnu_as
2254     gnu_windres
2255     ibm_asm
2256     inline_asm_direct_symbol_refs
2257     inline_asm_labels
2258     inline_asm_nonlocal_labels
2259     pragma_deprecated
2260     rsync_contimeout
2261     symver_asm_label
2262     symver_gnu_asm
2263     vfp_args
2264     xform_asm
2265     xmm_clobbers
2266 "
2267
2268 TYPES_LIST="
2269     kCMVideoCodecType_HEVC
2270     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2271     kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
2272     kCVImageBufferTransferFunction_ITU_R_2100_HLG
2273     kCVImageBufferTransferFunction_Linear
2274     socklen_t
2275     struct_addrinfo
2276     struct_group_source_req
2277     struct_ip_mreq_source
2278     struct_ipv6_mreq
2279     struct_msghdr_msg_flags
2280     struct_pollfd
2281     struct_rusage_ru_maxrss
2282     struct_sctp_event_subscribe
2283     struct_sockaddr_in6
2284     struct_sockaddr_sa_len
2285     struct_sockaddr_storage
2286     struct_stat_st_mtim_tv_nsec
2287     struct_v4l2_frmivalenum_discrete
2288 "
2289
2290 HAVE_LIST="
2291     $ARCH_EXT_LIST
2292     $(add_suffix _external $ARCH_EXT_LIST)
2293     $(add_suffix _inline   $ARCH_EXT_LIST)
2294     $ARCH_FEATURES
2295     $BUILTIN_LIST
2296     $COMPLEX_FUNCS
2297     $HAVE_LIST_CMDLINE
2298     $HAVE_LIST_PUB
2299     $HEADERS_LIST
2300     $INTRINSICS_LIST
2301     $MATH_FUNCS
2302     $SYSTEM_FEATURES
2303     $SYSTEM_FUNCS
2304     $SYSTEM_LIBRARIES
2305     $THREADS_LIST
2306     $TOOLCHAIN_FEATURES
2307     $TYPES_LIST
2308     makeinfo
2309     makeinfo_html
2310     opencl_d3d11
2311     opencl_drm_arm
2312     opencl_drm_beignet
2313     opencl_dxva2
2314     opencl_vaapi_beignet
2315     opencl_vaapi_intel_media
2316     perl
2317     pod2man
2318     texi2html
2319 "
2320
2321 # options emitted with CONFIG_ prefix but not available on the command line
2322 CONFIG_EXTRA="
2323     aandcttables
2324     ac3dsp
2325     adts_header
2326     audio_frame_queue
2327     audiodsp
2328     blockdsp
2329     bswapdsp
2330     cabac
2331     cbs
2332     cbs_av1
2333     cbs_h264
2334     cbs_h265
2335     cbs_jpeg
2336     cbs_mpeg2
2337     cbs_vp9
2338     dirac_parse
2339     dnn
2340     dvprofile
2341     exif
2342     faandct
2343     faanidct
2344     fdctdsp
2345     flacdsp
2346     fmtconvert
2347     frame_thread_encoder
2348     g722dsp
2349     golomb
2350     gplv3
2351     h263dsp
2352     h264chroma
2353     h264dsp
2354     h264parse
2355     h264pred
2356     h264qpel
2357     hevcparse
2358     hpeldsp
2359     huffman
2360     huffyuvdsp
2361     huffyuvencdsp
2362     idctdsp
2363     iirfilter
2364     mdct15
2365     intrax8
2366     iso_media
2367     ividsp
2368     jpegtables
2369     lgplv3
2370     libx262
2371     llauddsp
2372     llviddsp
2373     llvidencdsp
2374     lpc
2375     lzf
2376     me_cmp
2377     mpeg_er
2378     mpegaudio
2379     mpegaudiodsp
2380     mpegaudioheader
2381     mpegvideo
2382     mpegvideoenc
2383     mss34dsp
2384     pixblockdsp
2385     qpeldsp
2386     qsv
2387     qsvdec
2388     qsvenc
2389     qsvvpp
2390     rangecoder
2391     riffdec
2392     riffenc
2393     rtpdec
2394     rtpenc_chain
2395     rv34dsp
2396     scene_sad
2397     sinewin
2398     snappy
2399     srtp
2400     startcode
2401     texturedsp
2402     texturedspenc
2403     tpeldsp
2404     vaapi_1
2405     vaapi_encode
2406     vc1dsp
2407     videodsp
2408     vp3dsp
2409     vp56dsp
2410     vp8dsp
2411     wma_freqs
2412     wmv2dsp
2413 "
2414
2415 CMDLINE_SELECT="
2416     $ARCH_EXT_LIST
2417     $CONFIG_LIST
2418     $HAVE_LIST_CMDLINE
2419     $THREADS_LIST
2420     asm
2421     cross_compile
2422     debug
2423     extra_warnings
2424     logging
2425     lto
2426     optimizations
2427     rpath
2428     stripping
2429 "
2430
2431 PATHS_LIST="
2432     bindir
2433     datadir
2434     docdir
2435     incdir
2436     libdir
2437     mandir
2438     pkgconfigdir
2439     prefix
2440     shlibdir
2441     install_name_dir
2442 "
2443
2444 CMDLINE_SET="
2445     $PATHS_LIST
2446     ar
2447     arch
2448     as
2449     assert_level
2450     build_suffix
2451     cc
2452     objcc
2453     cpu
2454     cross_prefix
2455     custom_allocator
2456     cxx
2457     dep_cc
2458     doxygen
2459     env
2460     extra_version
2461     gas
2462     host_cc
2463     host_cflags
2464     host_extralibs
2465     host_ld
2466     host_ldflags
2467     host_os
2468     ignore_tests
2469     install
2470     ld
2471     ln_s
2472     logfile
2473     malloc_prefix
2474     nm
2475     optflags
2476     nvcc
2477     nvccflags
2478     pkg_config
2479     pkg_config_flags
2480     progs_suffix
2481     random_seed
2482     ranlib
2483     samples
2484     strip
2485     sws_max_filter_size
2486     sysinclude
2487     sysroot
2488     target_exec
2489     target_os
2490     target_path
2491     target_samples
2492     tempprefix
2493     toolchain
2494     valgrind
2495     windres
2496     x86asmexe
2497 "
2498
2499 CMDLINE_APPEND="
2500     extra_cflags
2501     extra_cxxflags
2502     extra_objcflags
2503     host_cppflags
2504 "
2505
2506 # code dependency declarations
2507
2508 # architecture extensions
2509
2510 armv5te_deps="arm"
2511 armv6_deps="arm"
2512 armv6t2_deps="arm"
2513 armv8_deps="aarch64"
2514 neon_deps_any="aarch64 arm"
2515 intrinsics_neon_deps="neon"
2516 vfp_deps_any="aarch64 arm"
2517 vfpv3_deps="vfp"
2518 setend_deps="arm"
2519
2520 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2521
2522 altivec_deps="ppc"
2523 dcbzl_deps="ppc"
2524 ldbrx_deps="ppc"
2525 ppc4xx_deps="ppc"
2526 vsx_deps="altivec"
2527 power8_deps="vsx"
2528
2529 loongson2_deps="mips"
2530 loongson3_deps="mips"
2531 mips32r2_deps="mips"
2532 mips32r5_deps="mips"
2533 mips32r6_deps="mips"
2534 mips64r2_deps="mips"
2535 mips64r6_deps="mips"
2536 mipsfpu_deps="mips"
2537 mipsdsp_deps="mips"
2538 mipsdspr2_deps="mips"
2539 mmi_deps="mips"
2540 msa_deps="mipsfpu"
2541 msa2_deps="msa"
2542
2543 cpunop_deps="i686"
2544 x86_64_select="i686"
2545 x86_64_suggest="fast_cmov"
2546
2547 amd3dnow_deps="mmx"
2548 amd3dnowext_deps="amd3dnow"
2549 i686_deps="x86"
2550 mmx_deps="x86"
2551 mmxext_deps="mmx"
2552 sse_deps="mmxext"
2553 sse2_deps="sse"
2554 sse3_deps="sse2"
2555 ssse3_deps="sse3"
2556 sse4_deps="ssse3"
2557 sse42_deps="sse4"
2558 aesni_deps="sse42"
2559 avx_deps="sse42"
2560 xop_deps="avx"
2561 fma3_deps="avx"
2562 fma4_deps="avx"
2563 avx2_deps="avx"
2564 avx512_deps="avx2"
2565
2566 mmx_external_deps="x86asm"
2567 mmx_inline_deps="inline_asm x86"
2568 mmx_suggest="mmx_external mmx_inline"
2569
2570 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2571     eval dep=\$${ext}_deps
2572     eval ${ext}_external_deps='"${dep}_external"'
2573     eval ${ext}_inline_deps='"${dep}_inline"'
2574     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2575 done
2576
2577 aligned_stack_if_any="aarch64 ppc x86"
2578 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2579 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2580 fast_unaligned_if_any="aarch64 ppc x86"
2581 simd_align_16_if_any="altivec neon sse"
2582 simd_align_32_if_any="avx"
2583 simd_align_64_if_any="avx512"
2584
2585 # system capabilities
2586 linux_perf_deps="linux_perf_event_h"
2587 symver_if_any="symver_asm_label symver_gnu_asm"
2588 valgrind_backtrace_conflict="optimizations"
2589 valgrind_backtrace_deps="valgrind_valgrind_h"
2590
2591 # threading support
2592 atomics_gcc_if="sync_val_compare_and_swap"
2593 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2594 atomics_win32_if="MemoryBarrier"
2595 atomics_native_if_any="$ATOMICS_LIST"
2596 w32threads_deps="atomics_native"
2597 threads_if_any="$THREADS_LIST"
2598
2599 # subsystems
2600 cbs_av1_select="cbs"
2601 cbs_h264_select="cbs"
2602 cbs_h265_select="cbs"
2603 cbs_jpeg_select="cbs"
2604 cbs_mpeg2_select="cbs"
2605 cbs_vp9_select="cbs"
2606 dct_select="rdft"
2607 dirac_parse_select="golomb"
2608 dnn_suggest="libtensorflow"
2609 error_resilience_select="me_cmp"
2610 faandct_deps="faan"
2611 faandct_select="fdctdsp"
2612 faanidct_deps="faan"
2613 faanidct_select="idctdsp"
2614 h264dsp_select="startcode"
2615 hevcparse_select="golomb"
2616 frame_thread_encoder_deps="encoders threads"
2617 intrax8_select="blockdsp idctdsp"
2618 mdct_select="fft"
2619 mdct15_select="fft"
2620 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2621 mpeg_er_select="error_resilience"
2622 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2623 mpegaudiodsp_select="dct"
2624 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2625 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2626 vc1dsp_select="h264chroma qpeldsp startcode"
2627 rdft_select="fft"
2628
2629 # decoders / encoders
2630 aac_decoder_select="adts_header mdct15 mdct sinewin"
2631 aac_fixed_decoder_select="adts_header mdct sinewin"
2632 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2633 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2634 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2635 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2636 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2637 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2638 adpcm_g722_decoder_select="g722dsp"
2639 adpcm_g722_encoder_select="g722dsp"
2640 aic_decoder_select="golomb idctdsp"
2641 alac_encoder_select="lpc"
2642 als_decoder_select="bswapdsp"
2643 amrnb_decoder_select="lsp"
2644 amrwb_decoder_select="lsp"
2645 amv_decoder_select="sp5x_decoder exif"
2646 amv_encoder_select="jpegtables mpegvideoenc"
2647 ape_decoder_select="bswapdsp llauddsp"
2648 apng_decoder_deps="zlib"
2649 apng_encoder_deps="zlib"
2650 apng_encoder_select="llvidencdsp"
2651 aptx_decoder_select="audio_frame_queue"
2652 aptx_encoder_select="audio_frame_queue"
2653 aptx_hd_decoder_select="audio_frame_queue"
2654 aptx_hd_encoder_select="audio_frame_queue"
2655 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2656 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2657 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2658 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2659 atrac1_decoder_select="mdct sinewin"
2660 atrac3_decoder_select="mdct"
2661 atrac3p_decoder_select="mdct sinewin"
2662 atrac9_decoder_select="mdct"
2663 avrn_decoder_select="exif jpegtables"
2664 bink_decoder_select="blockdsp hpeldsp"
2665 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2666 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2667 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2668 clearvideo_decoder_select="idctdsp"
2669 cllc_decoder_select="bswapdsp"
2670 comfortnoise_encoder_select="lpc"
2671 cook_decoder_select="audiodsp mdct sinewin"
2672 cscd_decoder_select="lzo"
2673 cscd_decoder_suggest="zlib"
2674 dca_decoder_select="mdct"
2675 dds_decoder_select="texturedsp"
2676 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2677 dnxhd_decoder_select="blockdsp idctdsp"
2678 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2679 dolby_e_decoder_select="mdct"
2680 dvvideo_decoder_select="dvprofile idctdsp"
2681 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2682 dxa_decoder_deps="zlib"
2683 dxv_decoder_select="lzf texturedsp"
2684 eac3_decoder_select="ac3_decoder"
2685 eac3_encoder_select="ac3_encoder"
2686 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2687 eatgq_decoder_select="aandcttables"
2688 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2689 exr_decoder_deps="zlib"
2690 ffv1_decoder_select="rangecoder"
2691 ffv1_encoder_select="rangecoder"
2692 ffvhuff_decoder_select="huffyuv_decoder"
2693 ffvhuff_encoder_select="huffyuv_encoder"
2694 fic_decoder_select="golomb"
2695 flac_decoder_select="flacdsp"
2696 flac_encoder_select="bswapdsp flacdsp lpc"
2697 flashsv2_decoder_deps="zlib"
2698 flashsv2_encoder_deps="zlib"
2699 flashsv_decoder_deps="zlib"
2700 flashsv_encoder_deps="zlib"
2701 flv_decoder_select="h263_decoder"
2702 flv_encoder_select="h263_encoder"
2703 fourxm_decoder_select="blockdsp bswapdsp"
2704 fraps_decoder_select="bswapdsp huffman"
2705 g2m_decoder_deps="zlib"
2706 g2m_decoder_select="blockdsp idctdsp jpegtables"
2707 g729_decoder_select="audiodsp"
2708 h261_decoder_select="mpegvideo"
2709 h261_encoder_select="mpegvideoenc"
2710 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2711 h263_encoder_select="h263dsp mpegvideoenc"
2712 h263i_decoder_select="h263_decoder"
2713 h263p_decoder_select="h263_decoder"
2714 h263p_encoder_select="h263_encoder"
2715 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2716 h264_decoder_suggest="error_resilience"
2717 hap_decoder_select="snappy texturedsp"
2718 hap_encoder_deps="libsnappy"
2719 hap_encoder_select="texturedspenc"
2720 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2721 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2722 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2723 hymt_decoder_select="huffyuv_decoder"
2724 iac_decoder_select="imc_decoder"
2725 imc_decoder_select="bswapdsp fft mdct sinewin"
2726 indeo3_decoder_select="hpeldsp"
2727 indeo4_decoder_select="ividsp"
2728 indeo5_decoder_select="ividsp"
2729 interplay_video_decoder_select="hpeldsp"
2730 jpegls_decoder_select="mjpeg_decoder"
2731 jv_decoder_select="blockdsp"
2732 lagarith_decoder_select="llviddsp"
2733 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2734 lscr_decoder_deps="zlib"
2735 magicyuv_decoder_select="llviddsp"
2736 magicyuv_encoder_select="llvidencdsp"
2737 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2738 metasound_decoder_select="lsp mdct sinewin"
2739 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2740 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2741 mjpeg_encoder_select="jpegtables mpegvideoenc"
2742 mjpegb_decoder_select="mjpeg_decoder"
2743 mlp_decoder_select="mlp_parser"
2744 mlp_encoder_select="lpc audio_frame_queue"
2745 motionpixels_decoder_select="bswapdsp"
2746 mp1_decoder_select="mpegaudio"
2747 mp1float_decoder_select="mpegaudio"
2748 mp2_decoder_select="mpegaudio"
2749 mp2float_decoder_select="mpegaudio"
2750 mp3_decoder_select="mpegaudio"
2751 mp3adu_decoder_select="mpegaudio"
2752 mp3adufloat_decoder_select="mpegaudio"
2753 mp3float_decoder_select="mpegaudio"
2754 mp3on4_decoder_select="mpegaudio"
2755 mp3on4float_decoder_select="mpegaudio"
2756 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2757 mpc8_decoder_select="mpegaudiodsp"
2758 mpegvideo_decoder_select="mpegvideo"
2759 mpeg1video_decoder_select="mpegvideo"
2760 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2761 mpeg2video_decoder_select="mpegvideo"
2762 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2763 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2764 mpeg4_encoder_select="h263_encoder"
2765 msa1_decoder_select="mss34dsp"
2766 mscc_decoder_deps="zlib"
2767 msmpeg4v1_decoder_select="h263_decoder"
2768 msmpeg4v2_decoder_select="h263_decoder"
2769 msmpeg4v2_encoder_select="h263_encoder"
2770 msmpeg4v3_decoder_select="h263_decoder"
2771 msmpeg4v3_encoder_select="h263_encoder"
2772 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2773 mts2_decoder_select="mss34dsp"
2774 mwsc_decoder_deps="zlib"
2775 mxpeg_decoder_select="mjpeg_decoder"
2776 nellymoser_decoder_select="mdct sinewin"
2777 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2778 nuv_decoder_select="idctdsp lzo"
2779 on2avc_decoder_select="mdct"
2780 opus_decoder_deps="swresample"
2781 opus_decoder_select="mdct15"
2782 opus_encoder_select="audio_frame_queue mdct15"
2783 png_decoder_deps="zlib"
2784 png_encoder_deps="zlib"
2785 png_encoder_select="llvidencdsp"
2786 prores_decoder_select="blockdsp idctdsp"
2787 prores_encoder_select="fdctdsp"
2788 qcelp_decoder_select="lsp"
2789 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2790 ra_144_decoder_select="audiodsp"
2791 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2792 ralf_decoder_select="golomb"
2793 rasc_decoder_deps="zlib"
2794 rawvideo_decoder_select="bswapdsp"
2795 rscc_decoder_deps="zlib"
2796 rtjpeg_decoder_select="me_cmp"
2797 rv10_decoder_select="h263_decoder"
2798 rv10_encoder_select="h263_encoder"
2799 rv20_decoder_select="h263_decoder"
2800 rv20_encoder_select="h263_encoder"
2801 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2802 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2803 screenpresso_decoder_deps="zlib"
2804 shorten_decoder_select="bswapdsp"
2805 sipr_decoder_select="lsp"
2806 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2807 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2808 sonic_decoder_select="golomb rangecoder"
2809 sonic_encoder_select="golomb rangecoder"
2810 sonic_ls_encoder_select="golomb rangecoder"
2811 sp5x_decoder_select="mjpeg_decoder"
2812 speedhq_decoder_select="mpegvideo"
2813 srgc_decoder_deps="zlib"
2814 svq1_decoder_select="hpeldsp"
2815 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2816 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2817 svq3_decoder_suggest="zlib"
2818 tak_decoder_select="audiodsp"
2819 tdsc_decoder_deps="zlib"
2820 tdsc_decoder_select="mjpeg_decoder"
2821 theora_decoder_select="vp3_decoder"
2822 thp_decoder_select="mjpeg_decoder"
2823 tiff_decoder_suggest="zlib lzma"
2824 tiff_encoder_suggest="zlib"
2825 truehd_decoder_select="mlp_parser"
2826 truehd_encoder_select="lpc audio_frame_queue"
2827 truemotion2_decoder_select="bswapdsp"
2828 truespeech_decoder_select="bswapdsp"
2829 tscc_decoder_deps="zlib"
2830 twinvq_decoder_select="mdct lsp sinewin"
2831 txd_decoder_select="texturedsp"
2832 utvideo_decoder_select="bswapdsp llviddsp"
2833 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2834 vble_decoder_select="llviddsp"
2835 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2836 vc1image_decoder_select="vc1_decoder"
2837 vorbis_decoder_select="mdct"
2838 vorbis_encoder_select="audio_frame_queue mdct"
2839 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2840 vp4_decoder_select="vp3_decoder"
2841 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2842 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2843 vp6a_decoder_select="vp6_decoder"
2844 vp6f_decoder_select="vp6_decoder"
2845 vp7_decoder_select="h264pred videodsp vp8dsp"
2846 vp8_decoder_select="h264pred videodsp vp8dsp"
2847 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2848 wcmv_decoder_deps="zlib"
2849 webp_decoder_select="vp8_decoder exif"
2850 wmalossless_decoder_select="llauddsp"
2851 wmapro_decoder_select="mdct sinewin wma_freqs"
2852 wmav1_decoder_select="mdct sinewin wma_freqs"
2853 wmav1_encoder_select="mdct sinewin wma_freqs"
2854 wmav2_decoder_select="mdct sinewin wma_freqs"
2855 wmav2_encoder_select="mdct sinewin wma_freqs"
2856 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2857 wmv1_decoder_select="h263_decoder"
2858 wmv1_encoder_select="h263_encoder"
2859 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2860 wmv2_encoder_select="h263_encoder wmv2dsp"
2861 wmv3_decoder_select="vc1_decoder"
2862 wmv3image_decoder_select="wmv3_decoder"
2863 xma1_decoder_select="wmapro_decoder"
2864 xma2_decoder_select="wmapro_decoder"
2865 zerocodec_decoder_deps="zlib"
2866 zlib_decoder_deps="zlib"
2867 zlib_encoder_deps="zlib"
2868 zmbv_decoder_deps="zlib"
2869 zmbv_encoder_deps="zlib"
2870
2871 # hardware accelerators
2872 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2873 cuda_deps="ffnvcodec"
2874 cuvid_deps="ffnvcodec"
2875 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2876 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2877 ffnvcodec_deps_any="libdl LoadLibrary"
2878 nvdec_deps="ffnvcodec"
2879 vaapi_x11_deps="xlib"
2880 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2881 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2882 xvmc_deps="X11_extensions_XvMClib_h"
2883
2884 h263_vaapi_hwaccel_deps="vaapi"
2885 h263_vaapi_hwaccel_select="h263_decoder"
2886 h263_videotoolbox_hwaccel_deps="videotoolbox"
2887 h263_videotoolbox_hwaccel_select="h263_decoder"
2888 h264_d3d11va_hwaccel_deps="d3d11va"
2889 h264_d3d11va_hwaccel_select="h264_decoder"
2890 h264_d3d11va2_hwaccel_deps="d3d11va"
2891 h264_d3d11va2_hwaccel_select="h264_decoder"
2892 h264_dxva2_hwaccel_deps="dxva2"
2893 h264_dxva2_hwaccel_select="h264_decoder"
2894 h264_nvdec_hwaccel_deps="nvdec"
2895 h264_nvdec_hwaccel_select="h264_decoder"
2896 h264_vaapi_hwaccel_deps="vaapi"
2897 h264_vaapi_hwaccel_select="h264_decoder"
2898 h264_vdpau_hwaccel_deps="vdpau"
2899 h264_vdpau_hwaccel_select="h264_decoder"
2900 h264_videotoolbox_hwaccel_deps="videotoolbox"
2901 h264_videotoolbox_hwaccel_select="h264_decoder"
2902 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2903 hevc_d3d11va_hwaccel_select="hevc_decoder"
2904 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2905 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2906 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2907 hevc_dxva2_hwaccel_select="hevc_decoder"
2908 hevc_nvdec_hwaccel_deps="nvdec"
2909 hevc_nvdec_hwaccel_select="hevc_decoder"
2910 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2911 hevc_vaapi_hwaccel_select="hevc_decoder"
2912 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2913 hevc_vdpau_hwaccel_select="hevc_decoder"
2914 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2915 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2916 mjpeg_nvdec_hwaccel_deps="nvdec"
2917 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2918 mjpeg_vaapi_hwaccel_deps="vaapi"
2919 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2920 mpeg_xvmc_hwaccel_deps="xvmc"
2921 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2922 mpeg1_nvdec_hwaccel_deps="nvdec"
2923 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2924 mpeg1_vdpau_hwaccel_deps="vdpau"
2925 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2926 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2927 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2928 mpeg1_xvmc_hwaccel_deps="xvmc"
2929 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2930 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2931 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2932 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2933 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2934 mpeg2_dxva2_hwaccel_deps="dxva2"
2935 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2936 mpeg2_nvdec_hwaccel_deps="nvdec"
2937 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2938 mpeg2_vaapi_hwaccel_deps="vaapi"
2939 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2940 mpeg2_vdpau_hwaccel_deps="vdpau"
2941 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2942 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2943 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2944 mpeg2_xvmc_hwaccel_deps="xvmc"
2945 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2946 mpeg4_nvdec_hwaccel_deps="nvdec"
2947 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2948 mpeg4_vaapi_hwaccel_deps="vaapi"
2949 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2950 mpeg4_vdpau_hwaccel_deps="vdpau"
2951 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2952 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2953 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2954 vc1_d3d11va_hwaccel_deps="d3d11va"
2955 vc1_d3d11va_hwaccel_select="vc1_decoder"
2956 vc1_d3d11va2_hwaccel_deps="d3d11va"
2957 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2958 vc1_dxva2_hwaccel_deps="dxva2"
2959 vc1_dxva2_hwaccel_select="vc1_decoder"
2960 vc1_nvdec_hwaccel_deps="nvdec"
2961 vc1_nvdec_hwaccel_select="vc1_decoder"
2962 vc1_vaapi_hwaccel_deps="vaapi"
2963 vc1_vaapi_hwaccel_select="vc1_decoder"
2964 vc1_vdpau_hwaccel_deps="vdpau"
2965 vc1_vdpau_hwaccel_select="vc1_decoder"
2966 vp8_nvdec_hwaccel_deps="nvdec"
2967 vp8_nvdec_hwaccel_select="vp8_decoder"
2968 vp8_vaapi_hwaccel_deps="vaapi"
2969 vp8_vaapi_hwaccel_select="vp8_decoder"
2970 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2971 vp9_d3d11va_hwaccel_select="vp9_decoder"
2972 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2973 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2974 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2975 vp9_dxva2_hwaccel_select="vp9_decoder"
2976 vp9_nvdec_hwaccel_deps="nvdec"
2977 vp9_nvdec_hwaccel_select="vp9_decoder"
2978 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2979 vp9_vaapi_hwaccel_select="vp9_decoder"
2980 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2981 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2982 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2983 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2984 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2985 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2986
2987 # hardware-accelerated codecs
2988 omx_deps="libdl pthreads"
2989 omx_rpi_select="omx"
2990 qsv_deps="libmfx"
2991 qsvdec_select="qsv"
2992 qsvenc_select="qsv"
2993 qsvvpp_select="qsv"
2994 vaapi_encode_deps="vaapi"
2995 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2996
2997 hwupload_cuda_filter_deps="ffnvcodec"
2998 scale_npp_filter_deps="ffnvcodec libnpp"
2999 scale_cuda_filter_deps="ffnvcodec"
3000 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3001 thumbnail_cuda_filter_deps="ffnvcodec"
3002 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3003 transpose_npp_filter_deps="ffnvcodec libnpp"
3004
3005 amf_deps_any="libdl LoadLibrary"
3006 nvenc_deps="ffnvcodec"
3007 nvenc_deps_any="libdl LoadLibrary"
3008 nvenc_encoder_deps="nvenc"
3009
3010 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3011 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3012 h264_amf_encoder_deps="amf"
3013 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3014 h264_cuvid_decoder_deps="cuvid"
3015 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3016 h264_mediacodec_decoder_deps="mediacodec"
3017 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3018 h264_mmal_decoder_deps="mmal"
3019 h264_nvenc_encoder_deps="nvenc"
3020 h264_omx_encoder_deps="omx"
3021 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3022 h264_qsv_encoder_select="qsvenc"
3023 h264_rkmpp_decoder_deps="rkmpp"
3024 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3025 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3026 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3027 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3028 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3029 hevc_amf_encoder_deps="amf"
3030 hevc_cuvid_decoder_deps="cuvid"
3031 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3032 hevc_mediacodec_decoder_deps="mediacodec"
3033 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3034 hevc_nvenc_encoder_deps="nvenc"
3035 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3036 hevc_qsv_encoder_select="hevcparse qsvenc"
3037 hevc_rkmpp_decoder_deps="rkmpp"
3038 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3039 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3040 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3041 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3042 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3043 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3044 mjpeg_cuvid_decoder_deps="cuvid"
3045 mjpeg_qsv_decoder_select="qsvdec"
3046 mjpeg_qsv_encoder_deps="libmfx"
3047 mjpeg_qsv_encoder_select="qsvenc"
3048 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3049 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3050 mpeg1_cuvid_decoder_deps="cuvid"
3051 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3052 mpeg2_crystalhd_decoder_select="crystalhd"
3053 mpeg2_cuvid_decoder_deps="cuvid"
3054 mpeg2_mmal_decoder_deps="mmal"
3055 mpeg2_mediacodec_decoder_deps="mediacodec"
3056 mpeg2_qsv_decoder_select="qsvdec"
3057 mpeg2_qsv_encoder_select="qsvenc"
3058 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3059 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3060 mpeg4_crystalhd_decoder_select="crystalhd"
3061 mpeg4_cuvid_decoder_deps="cuvid"
3062 mpeg4_mediacodec_decoder_deps="mediacodec"
3063 mpeg4_mmal_decoder_deps="mmal"
3064 mpeg4_omx_encoder_deps="omx"
3065 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3066 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3067 msmpeg4_crystalhd_decoder_select="crystalhd"
3068 nvenc_h264_encoder_select="h264_nvenc_encoder"
3069 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3070 vc1_crystalhd_decoder_select="crystalhd"
3071 vc1_cuvid_decoder_deps="cuvid"
3072 vc1_mmal_decoder_deps="mmal"
3073 vc1_qsv_decoder_select="qsvdec"
3074 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3075 vp8_cuvid_decoder_deps="cuvid"
3076 vp8_mediacodec_decoder_deps="mediacodec"
3077 vp8_qsv_decoder_select="qsvdec"
3078 vp8_rkmpp_decoder_deps="rkmpp"
3079 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3080 vp8_vaapi_encoder_select="vaapi_encode"
3081 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3082 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3083 vp9_cuvid_decoder_deps="cuvid"
3084 vp9_mediacodec_decoder_deps="mediacodec"
3085 vp9_qsv_decoder_select="qsvdec"
3086 vp9_rkmpp_decoder_deps="rkmpp"
3087 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3088 vp9_vaapi_encoder_select="vaapi_encode"
3089 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3090 wmv3_crystalhd_decoder_select="crystalhd"
3091
3092 # parsers
3093 aac_parser_select="adts_header"
3094 av1_parser_select="cbs_av1"
3095 h264_parser_select="golomb h264dsp h264parse"
3096 hevc_parser_select="hevcparse"
3097 mpegaudio_parser_select="mpegaudioheader"
3098 mpegvideo_parser_select="mpegvideo"
3099 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3100 vc1_parser_select="vc1dsp"
3101
3102 # bitstream_filters
3103 aac_adtstoasc_bsf_select="adts_header"
3104 av1_frame_split_bsf_select="cbs_av1"
3105 av1_metadata_bsf_select="cbs_av1"
3106 eac3_core_bsf_select="ac3_parser"
3107 filter_units_bsf_select="cbs"
3108 h264_metadata_bsf_deps="const_nan"
3109 h264_metadata_bsf_select="cbs_h264"
3110 h264_redundant_pps_bsf_select="cbs_h264"
3111 hevc_metadata_bsf_select="cbs_h265"
3112 mjpeg2jpeg_bsf_select="jpegtables"
3113 mpeg2_metadata_bsf_select="cbs_mpeg2"
3114 trace_headers_bsf_select="cbs"
3115 vp9_metadata_bsf_select="cbs_vp9"
3116
3117 # external libraries
3118 aac_at_decoder_deps="audiotoolbox"
3119 aac_at_decoder_select="aac_adtstoasc_bsf"
3120 ac3_at_decoder_deps="audiotoolbox"
3121 ac3_at_decoder_select="ac3_parser"
3122 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3123 alac_at_decoder_deps="audiotoolbox"
3124 amr_nb_at_decoder_deps="audiotoolbox"
3125 avisynth_deps_any="libdl LoadLibrary"
3126 avisynth_demuxer_deps="avisynth"
3127 avisynth_demuxer_select="riffdec"
3128 eac3_at_decoder_deps="audiotoolbox"
3129 eac3_at_decoder_select="ac3_parser"
3130 gsm_ms_at_decoder_deps="audiotoolbox"
3131 ilbc_at_decoder_deps="audiotoolbox"
3132 mp1_at_decoder_deps="audiotoolbox"
3133 mp2_at_decoder_deps="audiotoolbox"
3134 mp3_at_decoder_deps="audiotoolbox"
3135 mp1_at_decoder_select="mpegaudioheader"
3136 mp2_at_decoder_select="mpegaudioheader"
3137 mp3_at_decoder_select="mpegaudioheader"
3138 pcm_alaw_at_decoder_deps="audiotoolbox"
3139 pcm_mulaw_at_decoder_deps="audiotoolbox"
3140 qdmc_at_decoder_deps="audiotoolbox"
3141 qdm2_at_decoder_deps="audiotoolbox"
3142 aac_at_encoder_deps="audiotoolbox"
3143 aac_at_encoder_select="audio_frame_queue"
3144 alac_at_encoder_deps="audiotoolbox"
3145 alac_at_encoder_select="audio_frame_queue"
3146 ilbc_at_encoder_deps="audiotoolbox"
3147 ilbc_at_encoder_select="audio_frame_queue"
3148 pcm_alaw_at_encoder_deps="audiotoolbox"
3149 pcm_alaw_at_encoder_select="audio_frame_queue"
3150 pcm_mulaw_at_encoder_deps="audiotoolbox"
3151 pcm_mulaw_at_encoder_select="audio_frame_queue"
3152 chromaprint_muxer_deps="chromaprint"
3153 h264_videotoolbox_encoder_deps="pthreads"
3154 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3155 hevc_videotoolbox_encoder_deps="pthreads"
3156 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3157 libaom_av1_decoder_deps="libaom"
3158 libaom_av1_encoder_deps="libaom"
3159 libaom_av1_encoder_select="extract_extradata_bsf"
3160 libaribb24_decoder_deps="libaribb24"
3161 libcelt_decoder_deps="libcelt"
3162 libcodec2_decoder_deps="libcodec2"
3163 libcodec2_encoder_deps="libcodec2"
3164 libdav1d_decoder_deps="libdav1d"
3165 libdavs2_decoder_deps="libdavs2"
3166 libfdk_aac_decoder_deps="libfdk_aac"
3167 libfdk_aac_encoder_deps="libfdk_aac"
3168 libfdk_aac_encoder_select="audio_frame_queue"
3169 libgme_demuxer_deps="libgme"
3170 libgsm_decoder_deps="libgsm"
3171 libgsm_encoder_deps="libgsm"
3172 libgsm_ms_decoder_deps="libgsm"
3173 libgsm_ms_encoder_deps="libgsm"
3174 libilbc_decoder_deps="libilbc"
3175 libilbc_encoder_deps="libilbc"
3176 libkvazaar_encoder_deps="libkvazaar"
3177 libmodplug_demuxer_deps="libmodplug"
3178 libmp3lame_encoder_deps="libmp3lame"
3179 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3180 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3181 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3182 libopencore_amrnb_encoder_select="audio_frame_queue"
3183 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3184 libopenh264_decoder_deps="libopenh264"
3185 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3186 libopenh264_encoder_deps="libopenh264"
3187 libopenjpeg_decoder_deps="libopenjpeg"
3188 libopenjpeg_encoder_deps="libopenjpeg"
3189 libopenmpt_demuxer_deps="libopenmpt"
3190 libopus_decoder_deps="libopus"
3191 libopus_encoder_deps="libopus"
3192 libopus_encoder_select="audio_frame_queue"
3193 librsvg_decoder_deps="librsvg"
3194 libshine_encoder_deps="libshine"
3195 libshine_encoder_select="audio_frame_queue"
3196 libspeex_decoder_deps="libspeex"
3197 libspeex_encoder_deps="libspeex"
3198 libspeex_encoder_select="audio_frame_queue"
3199 libtheora_encoder_deps="libtheora"
3200 libtwolame_encoder_deps="libtwolame"
3201 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3202 libvorbis_decoder_deps="libvorbis"
3203 libvorbis_encoder_deps="libvorbis libvorbisenc"
3204 libvorbis_encoder_select="audio_frame_queue"
3205 libvpx_vp8_decoder_deps="libvpx"
3206 libvpx_vp8_encoder_deps="libvpx"
3207 libvpx_vp9_decoder_deps="libvpx"
3208 libvpx_vp9_encoder_deps="libvpx"
3209 libwavpack_encoder_deps="libwavpack"
3210 libwavpack_encoder_select="audio_frame_queue"
3211 libwebp_encoder_deps="libwebp"
3212 libwebp_anim_encoder_deps="libwebp"
3213 libx262_encoder_deps="libx262"
3214 libx264_encoder_deps="libx264"
3215 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3216 libx264rgb_encoder_select="libx264_encoder"
3217 libx265_encoder_deps="libx265"
3218 libxavs_encoder_deps="libxavs"
3219 libxavs2_encoder_deps="libxavs2"
3220 libxvid_encoder_deps="libxvid"
3221 libzvbi_teletext_decoder_deps="libzvbi"
3222 vapoursynth_demuxer_deps="vapoursynth"
3223 videotoolbox_suggest="coreservices"
3224 videotoolbox_deps="corefoundation coremedia corevideo"
3225 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3226
3227 # demuxers / muxers
3228 ac3_demuxer_select="ac3_parser"
3229 aiff_muxer_select="iso_media"
3230 asf_demuxer_select="riffdec"
3231 asf_o_demuxer_select="riffdec"
3232 asf_muxer_select="riffenc"
3233 asf_stream_muxer_select="asf_muxer"
3234 avi_demuxer_select="iso_media riffdec exif"
3235 avi_muxer_select="riffenc"
3236 caf_demuxer_select="iso_media riffdec"
3237 caf_muxer_select="iso_media"
3238 dash_muxer_select="mp4_muxer"
3239 dash_demuxer_deps="libxml2"
3240 dirac_demuxer_select="dirac_parser"
3241 dts_demuxer_select="dca_parser"
3242 dtshd_demuxer_select="dca_parser"
3243 dv_demuxer_select="dvprofile"
3244 dv_muxer_select="dvprofile"
3245 dxa_demuxer_select="riffdec"
3246 eac3_demuxer_select="ac3_parser"
3247 f4v_muxer_select="mov_muxer"
3248 fifo_muxer_deps="threads"
3249 flac_demuxer_select="flac_parser"
3250 hds_muxer_select="flv_muxer"
3251 hls_muxer_select="mpegts_muxer"
3252 hls_muxer_suggest="gcrypt openssl"
3253 image2_alias_pix_demuxer_select="image2_demuxer"
3254 image2_brender_pix_demuxer_select="image2_demuxer"
3255 ipod_muxer_select="mov_muxer"
3256 ismv_muxer_select="mov_muxer"
3257 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3258 matroska_audio_muxer_select="matroska_muxer"
3259 matroska_demuxer_select="iso_media riffdec"
3260 matroska_demuxer_suggest="bzlib lzo zlib"
3261 matroska_muxer_select="iso_media riffenc"
3262 mmf_muxer_select="riffenc"
3263 mov_demuxer_select="iso_media riffdec"
3264 mov_demuxer_suggest="zlib"
3265 mov_muxer_select="iso_media riffenc rtpenc_chain"
3266 mp3_demuxer_select="mpegaudio_parser"
3267 mp3_muxer_select="mpegaudioheader"
3268 mp4_muxer_select="mov_muxer"
3269 mpegts_demuxer_select="iso_media"
3270 mpegts_muxer_select="adts_muxer latm_muxer"
3271 mpegtsraw_demuxer_select="mpegts_demuxer"
3272 mxf_d10_muxer_select="mxf_muxer"
3273 mxf_opatom_muxer_select="mxf_muxer"
3274 nut_muxer_select="riffenc"
3275 nuv_demuxer_select="riffdec"
3276 oga_muxer_select="ogg_muxer"
3277 ogg_demuxer_select="dirac_parse"
3278 ogv_muxer_select="ogg_muxer"
3279 opus_muxer_select="ogg_muxer"
3280 psp_muxer_select="mov_muxer"
3281 rtp_demuxer_select="sdp_demuxer"
3282 rtp_muxer_select="golomb"
3283 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3284 rtsp_demuxer_select="http_protocol rtpdec"
3285 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3286 sap_demuxer_select="sdp_demuxer"
3287 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3288 sdp_demuxer_select="rtpdec"
3289 smoothstreaming_muxer_select="ismv_muxer"
3290 spdif_demuxer_select="adts_header"
3291 spdif_muxer_select="adts_header"
3292 spx_muxer_select="ogg_muxer"
3293 swf_demuxer_suggest="zlib"
3294 tak_demuxer_select="tak_parser"
3295 tg2_muxer_select="mov_muxer"
3296 tgp_muxer_select="mov_muxer"
3297 vobsub_demuxer_select="mpegps_demuxer"
3298 w64_demuxer_select="wav_demuxer"
3299 w64_muxer_select="wav_muxer"
3300 wav_demuxer_select="riffdec"
3301 wav_muxer_select="riffenc"
3302 webm_muxer_select="iso_media riffenc"
3303 webm_dash_manifest_demuxer_select="matroska_demuxer"
3304 wtv_demuxer_select="mpegts_demuxer riffdec"
3305 wtv_muxer_select="mpegts_muxer riffenc"
3306 xmv_demuxer_select="riffdec"
3307 xwma_demuxer_select="riffdec"
3308
3309 # indevs / outdevs
3310 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3311 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3312 alsa_indev_deps="alsa"
3313 alsa_outdev_deps="alsa"
3314 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3315 avfoundation_indev_suggest="coregraphics applicationservices"
3316 avfoundation_indev_extralibs="-framework Foundation"
3317 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3318 caca_outdev_deps="libcaca"
3319 decklink_deps_any="libdl LoadLibrary"
3320 decklink_indev_deps="decklink threads"
3321 decklink_indev_extralibs="-lstdc++"
3322 decklink_outdev_deps="decklink threads"
3323 decklink_outdev_suggest="libklvanc"
3324 decklink_outdev_extralibs="-lstdc++"
3325 dshow_indev_deps="IBaseFilter"
3326 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3327 fbdev_indev_deps="linux_fb_h"
3328 fbdev_outdev_deps="linux_fb_h"
3329 gdigrab_indev_deps="CreateDIBSection"
3330 gdigrab_indev_extralibs="-lgdi32"
3331 gdigrab_indev_select="bmp_decoder"
3332 iec61883_indev_deps="libiec61883"
3333 jack_indev_deps="libjack"
3334 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3335 kmsgrab_indev_deps="libdrm"
3336 lavfi_indev_deps="avfilter"
3337 libcdio_indev_deps="libcdio"
3338 libdc1394_indev_deps="libdc1394"
3339 openal_indev_deps="openal"
3340 opengl_outdev_deps="opengl"
3341 opengl_outdev_suggest="sdl2"
3342 oss_indev_deps_any="sys_soundcard_h"
3343 oss_outdev_deps_any="sys_soundcard_h"
3344 pulse_indev_deps="libpulse"
3345 pulse_outdev_deps="libpulse"
3346 sdl2_outdev_deps="sdl2"
3347 sndio_indev_deps="sndio"
3348 sndio_outdev_deps="sndio"
3349 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3350 v4l2_indev_suggest="libv4l2"
3351 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3352 v4l2_outdev_suggest="libv4l2"
3353 vfwcap_indev_deps="vfw32 vfwcap_defines"
3354 xcbgrab_indev_deps="libxcb"
3355 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3356 xv_outdev_deps="xlib"
3357
3358 # protocols
3359 async_protocol_deps="threads"
3360 bluray_protocol_deps="libbluray"
3361 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3362 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3363 ffrtmpcrypt_protocol_select="tcp_protocol"
3364 ffrtmphttp_protocol_conflict="librtmp_protocol"
3365 ffrtmphttp_protocol_select="http_protocol"
3366 ftp_protocol_select="tcp_protocol"
3367 gopher_protocol_select="network"
3368 http_protocol_select="tcp_protocol"
3369 http_protocol_suggest="zlib"
3370 httpproxy_protocol_select="tcp_protocol"
3371 httpproxy_protocol_suggest="zlib"
3372 https_protocol_select="tls_protocol"
3373 https_protocol_suggest="zlib"
3374 icecast_protocol_select="http_protocol"
3375 mmsh_protocol_select="http_protocol"
3376 mmst_protocol_select="network"
3377 rtmp_protocol_conflict="librtmp_protocol"
3378 rtmp_protocol_select="tcp_protocol"
3379 rtmp_protocol_suggest="zlib"
3380 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3381 rtmpe_protocol_suggest="zlib"
3382 rtmps_protocol_conflict="librtmp_protocol"
3383 rtmps_protocol_select="tls_protocol"
3384 rtmps_protocol_suggest="zlib"
3385 rtmpt_protocol_select="ffrtmphttp_protocol"
3386 rtmpt_protocol_suggest="zlib"
3387 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3388 rtmpte_protocol_suggest="zlib"
3389 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3390 rtmpts_protocol_suggest="zlib"
3391 rtp_protocol_select="udp_protocol"
3392 schannel_conflict="openssl gnutls libtls mbedtls"
3393 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3394 sctp_protocol_select="network"
3395 securetransport_conflict="openssl gnutls libtls mbedtls"
3396 srtp_protocol_select="rtp_protocol srtp"
3397 tcp_protocol_select="network"
3398 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3399 tls_protocol_select="tcp_protocol"
3400 udp_protocol_select="network"
3401 udplite_protocol_select="network"
3402 unix_protocol_deps="sys_un_h"
3403 unix_protocol_select="network"
3404
3405 # external library protocols
3406 librtmp_protocol_deps="librtmp"
3407 librtmpe_protocol_deps="librtmp"
3408 librtmps_protocol_deps="librtmp"
3409 librtmpt_protocol_deps="librtmp"
3410 librtmpte_protocol_deps="librtmp"
3411 libsmbclient_protocol_deps="libsmbclient gplv3"
3412 libsrt_protocol_deps="libsrt"
3413 libsrt_protocol_select="network"
3414 libssh_protocol_deps="libssh"
3415 libtls_conflict="openssl gnutls mbedtls"
3416
3417 # filters
3418 afftdn_filter_deps="avcodec"
3419 afftdn_filter_select="fft"
3420 afftfilt_filter_deps="avcodec"
3421 afftfilt_filter_select="fft"
3422 afir_filter_deps="avcodec"
3423 afir_filter_select="fft"
3424 amovie_filter_deps="avcodec avformat"
3425 aresample_filter_deps="swresample"
3426 asr_filter_deps="pocketsphinx"
3427 ass_filter_deps="libass"
3428 atempo_filter_deps="avcodec"
3429 atempo_filter_select="rdft"
3430 avgblur_opencl_filter_deps="opencl"
3431 azmq_filter_deps="libzmq"
3432 blackframe_filter_deps="gpl"
3433 bm3d_filter_deps="avcodec"
3434 bm3d_filter_select="dct"
3435 boxblur_filter_deps="gpl"
3436 boxblur_opencl_filter_deps="opencl gpl"
3437 bs2b_filter_deps="libbs2b"
3438 colorkey_opencl_filter_deps="opencl"
3439 colormatrix_filter_deps="gpl"
3440 convolution_opencl_filter_deps="opencl"
3441 convolve_filter_deps="avcodec"
3442 convolve_filter_select="fft"
3443 coreimage_filter_deps="coreimage appkit"
3444 coreimage_filter_extralibs="-framework OpenGL"
3445 coreimagesrc_filter_deps="coreimage appkit"
3446 coreimagesrc_filter_extralibs="-framework OpenGL"
3447 cover_rect_filter_deps="avcodec avformat gpl"
3448 cropdetect_filter_deps="gpl"
3449 deconvolve_filter_deps="avcodec"
3450 deconvolve_filter_select="fft"
3451 deinterlace_qsv_filter_deps="libmfx"
3452 deinterlace_vaapi_filter_deps="vaapi"
3453 delogo_filter_deps="gpl"
3454 denoise_vaapi_filter_deps="vaapi"
3455 derain_filter_select="dnn"
3456 deshake_filter_select="pixelutils"
3457 deshake_opencl_filter_deps="opencl"
3458 dilation_opencl_filter_deps="opencl"
3459 drawtext_filter_deps="libfreetype"
3460 drawtext_filter_suggest="libfontconfig libfribidi"
3461 elbg_filter_deps="avcodec"
3462 eq_filter_deps="gpl"
3463 erosion_opencl_filter_deps="opencl"
3464 fftfilt_filter_deps="avcodec"
3465 fftfilt_filter_select="rdft"
3466 fftdnoiz_filter_deps="avcodec"
3467 fftdnoiz_filter_select="fft"
3468 find_rect_filter_deps="avcodec avformat gpl"
3469 firequalizer_filter_deps="avcodec"
3470 firequalizer_filter_select="rdft"
3471 flite_filter_deps="libflite"
3472 framerate_filter_select="scene_sad"
3473 freezedetect_filter_select="scene_sad"
3474 frei0r_filter_deps="frei0r libdl"
3475 frei0r_src_filter_deps="frei0r libdl"
3476 fspp_filter_deps="gpl"
3477 geq_filter_deps="gpl"
3478 histeq_filter_deps="gpl"
3479 hqdn3d_filter_deps="gpl"
3480 interlace_filter_deps="gpl"
3481 kerndeint_filter_deps="gpl"
3482 ladspa_filter_deps="ladspa libdl"
3483 lensfun_filter_deps="liblensfun version3"
3484 lv2_filter_deps="lv2"
3485 mcdeint_filter_deps="avcodec gpl"
3486 movie_filter_deps="avcodec avformat"
3487 mpdecimate_filter_deps="gpl"
3488 mpdecimate_filter_select="pixelutils"
3489 minterpolate_filter_select="scene_sad"
3490 mptestsrc_filter_deps="gpl"
3491 negate_filter_deps="lut_filter"
3492 nlmeans_opencl_filter_deps="opencl"
3493 nnedi_filter_deps="gpl"
3494 ocr_filter_deps="libtesseract"
3495 ocv_filter_deps="libopencv"
3496 openclsrc_filter_deps="opencl"
3497 overlay_opencl_filter_deps="opencl"
3498 overlay_qsv_filter_deps="libmfx"
3499 overlay_qsv_filter_select="qsvvpp"
3500 owdenoise_filter_deps="gpl"
3501 pan_filter_deps="swresample"
3502 perspective_filter_deps="gpl"
3503 phase_filter_deps="gpl"
3504 pp7_filter_deps="gpl"
3505 pp_filter_deps="gpl postproc"
3506 prewitt_opencl_filter_deps="opencl"
3507 procamp_vaapi_filter_deps="vaapi"
3508 program_opencl_filter_deps="opencl"
3509 pullup_filter_deps="gpl"
3510 removelogo_filter_deps="avcodec avformat swscale"
3511 repeatfields_filter_deps="gpl"
3512 resample_filter_deps="avresample"
3513 roberts_opencl_filter_deps="opencl"
3514 rubberband_filter_deps="librubberband"
3515 sab_filter_deps="gpl swscale"
3516 scale2ref_filter_deps="swscale"
3517 scale_filter_deps="swscale"
3518 scale_qsv_filter_deps="libmfx"
3519 select_filter_select="scene_sad"
3520 sharpness_vaapi_filter_deps="vaapi"
3521 showcqt_filter_deps="avcodec avformat swscale"
3522 showcqt_filter_suggest="libfontconfig libfreetype"
3523 showcqt_filter_select="fft"
3524 showfreqs_filter_deps="avcodec"
3525 showfreqs_filter_select="fft"
3526 showspectrum_filter_deps="avcodec"
3527 showspectrum_filter_select="fft"
3528 showspectrumpic_filter_deps="avcodec"
3529 showspectrumpic_filter_select="fft"
3530 signature_filter_deps="gpl avcodec avformat"
3531 smartblur_filter_deps="gpl swscale"
3532 sobel_opencl_filter_deps="opencl"
3533 sofalizer_filter_deps="libmysofa avcodec"
3534 sofalizer_filter_select="fft"
3535 spectrumsynth_filter_deps="avcodec"
3536 spectrumsynth_filter_select="fft"
3537 spp_filter_deps="gpl avcodec"
3538 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3539 sr_filter_deps="avformat swscale"
3540 sr_filter_select="dnn"
3541 stereo3d_filter_deps="gpl"
3542 subtitles_filter_deps="avformat avcodec libass"
3543 super2xsai_filter_deps="gpl"
3544 pixfmts_super2xsai_test_deps="super2xsai_filter"
3545 tinterlace_filter_deps="gpl"
3546 tinterlace_merge_test_deps="tinterlace_filter"
3547 tinterlace_pad_test_deps="tinterlace_filter"
3548 tonemap_filter_deps="const_nan"
3549 tonemap_opencl_filter_deps="opencl const_nan"
3550 transpose_opencl_filter_deps="opencl"
3551 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3552 unsharp_opencl_filter_deps="opencl"
3553 uspp_filter_deps="gpl avcodec"
3554 vaguedenoiser_filter_deps="gpl"
3555 vidstabdetect_filter_deps="libvidstab"
3556 vidstabtransform_filter_deps="libvidstab"
3557 libvmaf_filter_deps="libvmaf pthreads"
3558 zmq_filter_deps="libzmq"
3559 zoompan_filter_deps="swscale"
3560 zscale_filter_deps="libzimg const_nan"
3561 scale_vaapi_filter_deps="vaapi"
3562 vpp_qsv_filter_deps="libmfx"
3563 vpp_qsv_filter_select="qsvvpp"
3564 yadif_cuda_filter_deps="ffnvcodec"
3565 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3566
3567 # examples
3568 avio_dir_cmd_deps="avformat avutil"
3569 avio_reading_deps="avformat avcodec avutil"
3570 decode_audio_example_deps="avcodec avutil"
3571 decode_video_example_deps="avcodec avutil"
3572 demuxing_decoding_example_deps="avcodec avformat avutil"
3573 encode_audio_example_deps="avcodec avutil"
3574 encode_video_example_deps="avcodec avutil"
3575 extract_mvs_example_deps="avcodec avformat avutil"
3576 filter_audio_example_deps="avfilter avutil"
3577 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3578 filtering_video_example_deps="avfilter avcodec avformat avutil"
3579 http_multiclient_example_deps="avformat avutil fork"
3580 hw_decode_example_deps="avcodec avformat avutil"
3581 metadata_example_deps="avformat avutil"
3582 muxing_example_deps="avcodec avformat avutil swscale"
3583 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3584 remuxing_example_deps="avcodec avformat avutil"
3585 resampling_audio_example_deps="avutil swresample"
3586 scaling_video_example_deps="avutil swscale"
3587 transcode_aac_example_deps="avcodec avformat swresample"
3588 transcoding_example_deps="avfilter avcodec avformat avutil"
3589 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3590 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3591
3592 # EXTRALIBS_LIST
3593 cpu_init_extralibs="pthreads_extralibs"
3594 cws2fws_extralibs="zlib_extralibs"
3595
3596 # libraries, in any order
3597 avcodec_deps="avutil"
3598 avcodec_suggest="libm"
3599 avcodec_select="null_bsf"
3600 avdevice_deps="avformat avcodec avutil"
3601 avdevice_suggest="libm"
3602 avfilter_deps="avutil"
3603 avfilter_suggest="libm"
3604 avformat_deps="avcodec avutil"
3605 avformat_suggest="libm network zlib"
3606 avresample_deps="avutil"
3607 avresample_suggest="libm"
3608 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3609 postproc_deps="avutil gpl"
3610 postproc_suggest="libm"
3611 swresample_deps="avutil"
3612 swresample_suggest="libm libsoxr"
3613 swscale_deps="avutil"
3614 swscale_suggest="libm"
3615
3616 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3617 avfilter_extralibs="pthreads_extralibs"
3618 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3619
3620 # programs
3621 ffmpeg_deps="avcodec avfilter avformat"
3622 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3623                hflip_filter null_filter
3624                transpose_filter trim_filter vflip_filter"
3625 ffmpeg_suggest="ole32 psapi shell32"
3626 ffplay_deps="avcodec avformat swscale swresample sdl2"
3627 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3628 ffplay_suggest="shell32"
3629 ffprobe_deps="avcodec avformat"
3630 ffprobe_suggest="shell32"
3631
3632 # documentation
3633 podpages_deps="perl"
3634 manpages_deps="perl pod2man"
3635 htmlpages_deps="perl"
3636 htmlpages_deps_any="makeinfo_html texi2html"
3637 txtpages_deps="perl makeinfo"
3638 doc_deps_any="manpages htmlpages podpages txtpages"
3639
3640 # default parameters
3641
3642 logfile="ffbuild/config.log"
3643
3644 # installation paths
3645 prefix_default="/usr/local"
3646 bindir_default='${prefix}/bin'
3647 datadir_default='${prefix}/share/ffmpeg'
3648 docdir_default='${prefix}/share/doc/ffmpeg'
3649 incdir_default='${prefix}/include'
3650 libdir_default='${prefix}/lib'
3651 mandir_default='${prefix}/share/man'
3652
3653 # toolchain
3654 ar_default="ar"
3655 cc_default="gcc"
3656 cxx_default="g++"
3657 host_cc_default="gcc"
3658 doxygen_default="doxygen"
3659 install="install"
3660 ln_s_default="ln -s -f"
3661 nm_default="nm -g"
3662 pkg_config_default=pkg-config
3663 ranlib_default="ranlib"
3664 strip_default="strip"
3665 version_script='--version-script'
3666 objformat="elf32"
3667 x86asmexe_default="nasm"
3668 windres_default="windres"
3669 striptype="direct"
3670
3671 # OS
3672 target_os_default=$(tolower $(uname -s))
3673 host_os=$target_os_default
3674
3675 # machine
3676 if test "$target_os_default" = aix; then
3677     arch_default=$(uname -p)
3678     strip_default="strip -X32_64"
3679     nm_default="nm -g -X32_64"
3680 else
3681     arch_default=$(uname -m)
3682 fi
3683 cpu="generic"
3684 intrinsics="none"
3685
3686 # configurable options
3687 enable $PROGRAM_LIST
3688 enable $DOCUMENT_LIST
3689 enable $EXAMPLE_LIST
3690 enable $(filter_out avresample $LIBRARY_LIST)
3691 enable stripping
3692
3693 enable asm
3694 enable debug
3695 enable doc
3696 enable faan faandct faanidct
3697 enable optimizations
3698 enable runtime_cpudetect
3699 enable safe_bitstream_reader
3700 enable static
3701 enable swscale_alpha
3702 enable valgrind_backtrace
3703
3704 sws_max_filter_size_default=256
3705 set_default sws_max_filter_size
3706
3707 # internal components are enabled by default
3708 enable $EXTRALIBS_LIST
3709
3710 # Avoid external, non-system, libraries getting enabled by dependency resolution
3711 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3712
3713 # build settings
3714 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3715 LIBPREF="lib"
3716 LIBSUF=".a"
3717 FULLNAME='$(NAME)$(BUILDSUF)'
3718 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3719 SLIBPREF="lib"
3720 SLIBSUF=".so"
3721 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3722 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3723 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3724 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3725 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3726 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3727 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3728
3729 asflags_filter=echo
3730 cflags_filter=echo
3731 ldflags_filter=echo
3732
3733 AS_C='-c'
3734 AS_O='-o $@'
3735 CC_C='-c'
3736 CC_E='-E -o $@'
3737 CC_O='-o $@'
3738 CXX_C='-c'
3739 CXX_O='-o $@'
3740 OBJCC_C='-c'
3741 OBJCC_E='-E -o $@'
3742 OBJCC_O='-o $@'
3743 X86ASM_O='-o $@'
3744 LD_O='-o $@'
3745 LD_LIB='-l%'
3746 LD_PATH='-L'
3747 HOSTCC_C='-c'
3748 HOSTCC_E='-E -o $@'
3749 HOSTCC_O='-o $@'
3750 HOSTLD_O='-o $@'
3751 NVCC_C='-c'
3752 NVCC_O='-o $@'
3753
3754 host_extralibs='-lm'
3755 host_cflags_filter=echo
3756 host_ldflags_filter=echo
3757
3758 target_path='$(CURDIR)'
3759
3760 # since the object filename is not given with the -MM flag, the compiler
3761 # is only able to print the basename, and we must add the path ourselves
3762 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3763 DEPFLAGS='-MM'
3764
3765 mkdir -p ffbuild
3766
3767 # find source path
3768 if test -f configure; then
3769     source_path=.
3770 elif test -f src/configure; then
3771     source_path=src
3772 else
3773     source_path=$(cd $(dirname "$0"); pwd)
3774     case "$source_path" in
3775         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3776     esac
3777     test -e "$source_path/config.h" &&
3778         die "Out of tree builds are impossible with config.h in source dir."
3779 fi
3780
3781 for v in "$@"; do
3782     r=${v#*=}
3783     l=${v%"$r"}
3784     r=$(sh_quote "$r")
3785     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3786 done
3787
3788 find_things_extern(){
3789     thing=$1
3790     pattern=$2
3791     file=$source_path/$3
3792     out=${4:-$thing}
3793     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3794 }
3795
3796 find_filters_extern(){
3797     file=$source_path/$1
3798     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3799 }
3800
3801 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3802 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3803 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3804 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3805 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3806 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3807 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3808 CODEC_LIST="
3809     $ENCODER_LIST
3810     $DECODER_LIST
3811 "
3812 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3813 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3814 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3815 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3816
3817 AVCODEC_COMPONENTS_LIST="
3818     $BSF_LIST
3819     $DECODER_LIST
3820     $ENCODER_LIST
3821     $HWACCEL_LIST
3822     $PARSER_LIST
3823 "
3824
3825 AVDEVICE_COMPONENTS_LIST="
3826     $INDEV_LIST
3827     $OUTDEV_LIST
3828 "
3829
3830 AVFILTER_COMPONENTS_LIST="
3831     $FILTER_LIST
3832 "
3833
3834 AVFORMAT_COMPONENTS_LIST="
3835     $DEMUXER_LIST
3836     $MUXER_LIST
3837     $PROTOCOL_LIST
3838 "
3839
3840 ALL_COMPONENTS="
3841     $AVCODEC_COMPONENTS_LIST
3842     $AVDEVICE_COMPONENTS_LIST
3843     $AVFILTER_COMPONENTS_LIST
3844     $AVFORMAT_COMPONENTS_LIST
3845 "
3846
3847 for n in $COMPONENT_LIST; do
3848     v=$(toupper ${n%s})_LIST
3849     eval enable \$$v
3850     eval ${n}_if_any="\$$v"
3851 done
3852
3853 enable $ARCH_EXT_LIST
3854
3855 die_unknown(){
3856     echo "Unknown option \"$1\"."
3857     echo "See $0 --help for available options."
3858     exit 1
3859 }
3860
3861 print_in_columns() {
3862     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3863     {
3864         num_cols = width > col_width ? int(width / col_width) : 1;
3865         num_rows = int((NF + num_cols-1) / num_cols);
3866         y = x = 1;
3867         for (y = 1; y <= num_rows; y++) {
3868             i = y;
3869             for (x = 1; x <= num_cols; x++) {
3870                 if (i <= NF) {
3871                   line = sprintf("%s%-" col_width "s", line, $i);
3872                 }
3873                 i = i + num_rows;
3874             }
3875             print line; line = "";
3876         }
3877     }' | sed 's/ *$//'
3878 }
3879
3880 show_list() {
3881     suffix=_$1
3882     shift
3883     echo $* | sed s/$suffix//g | print_in_columns
3884     exit 0
3885 }
3886
3887 rand_list(){
3888     IFS=', '
3889     set -- $*
3890     unset IFS
3891     for thing; do
3892         comp=${thing%:*}
3893         prob=${thing#$comp}
3894         prob=${prob#:}
3895         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3896         echo "prob ${prob:-0.5}"
3897         printf '%s\n' $comp
3898     done
3899 }
3900
3901 do_random(){
3902     action=$1
3903     shift
3904     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3905     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3906 }
3907
3908 for opt do
3909     optval="${opt#*=}"
3910     case "$opt" in
3911         --extra-ldflags=*)
3912             add_ldflags $optval
3913         ;;
3914         --extra-ldexeflags=*)
3915             add_ldexeflags $optval
3916         ;;
3917         --extra-ldsoflags=*)
3918             add_ldsoflags $optval
3919         ;;
3920         --extra-ldlibflags=*)
3921             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3922                  "removed in the future. Use --extra-ldsoflags instead."
3923             add_ldsoflags $optval
3924         ;;
3925         --extra-libs=*)
3926             add_extralibs $optval
3927         ;;
3928         --disable-devices)
3929             disable $INDEV_LIST $OUTDEV_LIST
3930         ;;
3931         --enable-debug=*)
3932             debuglevel="$optval"
3933         ;;
3934         --disable-programs)
3935             disable $PROGRAM_LIST
3936         ;;
3937         --disable-everything)
3938             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3939         ;;
3940         --disable-all)
3941             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3942             disable $LIBRARY_LIST $PROGRAM_LIST doc
3943             enable avutil
3944         ;;
3945         --enable-random|--disable-random)
3946             action=${opt%%-random}
3947             do_random ${action#--} $COMPONENT_LIST
3948         ;;
3949         --enable-random=*|--disable-random=*)
3950             action=${opt%%-random=*}
3951             do_random ${action#--} $optval
3952         ;;
3953         --enable-sdl)
3954             enable sdl2
3955         ;;
3956         --enable-*=*|--disable-*=*)
3957             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3958             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3959             eval list=\$$(toupper $thing)_LIST
3960             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3961             list=$(filter "$name" $list)
3962             [ "$list" = "" ] && warn "Option $opt did not match anything"
3963             test $action = enable && warn_if_gets_disabled $list
3964             $action $list
3965         ;;
3966         --enable-yasm|--disable-yasm)
3967             warn "The ${opt} option is only provided for compatibility and will be\n"\
3968                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3969             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3970         ;;
3971         --yasmexe=*)
3972             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3973                  "removed in the future. Use --x86asmexe instead."
3974             x86asmexe="$optval"
3975         ;;
3976         --enable-?*|--disable-?*)
3977             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3978             if is_in $option $COMPONENT_LIST; then
3979                 test $action = disable && action=unset
3980                 eval $action \$$(toupper ${option%s})_LIST
3981             elif is_in $option $CMDLINE_SELECT; then
3982                 $action $option
3983             else
3984                 die_unknown $opt
3985             fi
3986         ;;
3987         --list-*)
3988             NAME="${opt#--list-}"
3989             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3990             NAME=${NAME%s}
3991             eval show_list $NAME \$$(toupper $NAME)_LIST
3992         ;;
3993         --help|-h) show_help
3994         ;;
3995         --quiet|-q) quiet=yes
3996         ;;
3997         --fatal-warnings) enable fatal_warnings
3998         ;;
3999         --libfuzzer=*)
4000             libfuzzer_path="$optval"
4001         ;;
4002         *)
4003             optname="${opt%%=*}"
4004             optname="${optname#--}"
4005             optname=$(echo "$optname" | sed 's/-/_/g')
4006             if is_in $optname $CMDLINE_SET; then
4007                 eval $optname='$optval'
4008             elif is_in $optname $CMDLINE_APPEND; then
4009                 append $optname "$optval"
4010             else
4011                 die_unknown $opt
4012             fi
4013         ;;
4014     esac
4015 done
4016
4017 for e in $env; do
4018     eval "export $e"
4019 done
4020
4021 if disabled autodetect; then
4022
4023     # Unless iconv is explicitely disabled by the user, we still want to probe
4024     # for the iconv from the libc.
4025     disabled iconv || enable libc_iconv
4026
4027     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4028     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4029 fi
4030 # Mark specifically enabled, but normally autodetected libraries as requested.
4031 for lib in $AUTODETECT_LIBS; do
4032     enabled $lib && request $lib
4033 done
4034 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4035 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4036 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4037
4038 disabled logging && logfile=/dev/null
4039
4040 # command line configuration sanity checks
4041
4042 # we need to build at least one lib type
4043 if ! enabled_any static shared; then
4044     cat <<EOF
4045 At least one library type must be built.
4046 Specify --enable-static to build the static libraries or --enable-shared to
4047 build the shared libraries as well. To only build the shared libraries specify
4048 --disable-static in addition to --enable-shared.
4049 EOF
4050     exit 1
4051 fi
4052
4053 die_license_disabled() {
4054     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4055 }
4056
4057 die_license_disabled_gpl() {
4058     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4059 }
4060
4061 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4062 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4063
4064 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4065 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4066
4067 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4068
4069 if enabled nonfree; then
4070     license="nonfree and unredistributable"
4071 elif enabled gplv3; then
4072     license="GPL version 3 or later"
4073 elif enabled lgplv3; then
4074     license="LGPL version 3 or later"
4075 elif enabled gpl; then
4076     license="GPL version 2 or later"
4077 else
4078     license="LGPL version 2.1 or later"
4079 fi
4080
4081 enabled_all gnutls openssl &&
4082     die "GnuTLS and OpenSSL must not be enabled at the same time."
4083
4084 enabled_all gnutls mbedtls &&
4085     die "GnuTLS and mbedTLS must not be enabled at the same time."
4086
4087 enabled_all openssl mbedtls &&
4088     die "OpenSSL and mbedTLS must not be enabled at the same time."
4089
4090 # Disable all the library-specific components if the library itself
4091 # is disabled, see AVCODEC_LIST and following _LIST variables.
4092
4093 disable_components(){
4094     disabled ${1} && disable $(
4095         eval components="\$$(toupper ${1})_COMPONENTS"
4096         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4097     )
4098 }
4099
4100 map 'disable_components $v' $LIBRARY_LIST
4101
4102 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4103 set >> $logfile
4104
4105 test -n "$valgrind" && toolchain="valgrind-memcheck"
4106
4107 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4108     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4109     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4110 }
4111
4112 case "$toolchain" in
4113     *-asan)
4114         cc_default="${toolchain%-asan}"
4115         add_cflags  -fsanitize=address
4116         add_ldflags -fsanitize=address
4117     ;;
4118     *-msan)
4119         cc_default="${toolchain%-msan}"
4120         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4121         add_ldflags -fsanitize=memory
4122     ;;
4123     *-tsan)
4124         cc_default="${toolchain%-tsan}"
4125         add_cflags  -fsanitize=thread
4126         add_ldflags -fsanitize=thread
4127         case "$toolchain" in
4128             gcc-tsan)
4129                 add_cflags  -fPIC
4130                 add_ldflags -fPIC
4131                 ;;
4132         esac
4133     ;;
4134     *-usan)
4135         cc_default="${toolchain%-usan}"
4136         add_cflags  -fsanitize=undefined
4137         add_ldflags -fsanitize=undefined
4138     ;;
4139     valgrind-*)
4140         target_exec_default="valgrind"
4141         case "$toolchain" in
4142             valgrind-massif)
4143                 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"
4144                 ;;
4145             valgrind-memcheck)
4146                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4147                 ;;
4148         esac
4149     ;;
4150     msvc)
4151         # Check whether the current MSVC version needs the C99 converter.
4152         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4153         # support enough of C99 to build ffmpeg. Default to the new
4154         # behaviour if the regexp was unable to match anything, since this
4155         # successfully parses the version number of existing supported
4156         # versions that require the converter (MSVC 2010 and 2012).
4157         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4158         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4159             cc_default="cl.exe"
4160             cxx_default="cl.exe"
4161         else
4162             die "Unsupported MSVC version (2013 or newer required)"
4163         fi
4164         ld_default="$source_path/compat/windows/mslink"
4165         nm_default="dumpbin.exe -symbols"
4166         ar_default="lib.exe"
4167         case "$arch" in
4168         aarch64|arm64)
4169             as_default="armasm64.exe"
4170             ;;
4171         arm*)
4172             as_default="armasm.exe"
4173             ;;
4174         esac
4175         target_os_default="win32"
4176         # Use a relative path for TMPDIR. This makes sure all the
4177         # ffconf temp files are written with a relative path, avoiding
4178         # issues with msys/win32 path conversion for MSVC parameters
4179         # such as -Fo<file> or -out:<file>.
4180         TMPDIR=.
4181     ;;
4182     icl)
4183         cc_default="icl"
4184         ld_default="xilink"
4185         nm_default="dumpbin -symbols"
4186         ar_default="xilib"
4187         target_os_default="win32"
4188         TMPDIR=.
4189     ;;
4190     gcov)
4191         add_cflags  -fprofile-arcs -ftest-coverage
4192         add_ldflags -fprofile-arcs -ftest-coverage
4193     ;;
4194     llvm-cov)
4195         add_cflags -fprofile-arcs -ftest-coverage
4196         add_ldflags --coverage
4197     ;;
4198     hardened)
4199         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4200         add_cflags   -fno-strict-overflow -fstack-protector-all
4201         add_ldflags  -Wl,-z,relro -Wl,-z,now
4202         add_cflags   -fPIE
4203         add_ldexeflags -fPIE -pie
4204     ;;
4205     ?*)
4206         die "Unknown toolchain $toolchain"
4207     ;;
4208 esac
4209
4210 if test -n "$cross_prefix"; then
4211     test -n "$arch" && test -n "$target_os" ||
4212         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4213     enable cross_compile
4214 fi
4215
4216 set_default target_os
4217 if test "$target_os" = android; then
4218     cc_default="clang"
4219 fi
4220
4221 ar_default="${cross_prefix}${ar_default}"
4222 cc_default="${cross_prefix}${cc_default}"
4223 cxx_default="${cross_prefix}${cxx_default}"
4224 nm_default="${cross_prefix}${nm_default}"
4225 pkg_config_default="${cross_prefix}${pkg_config_default}"
4226 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4227     ranlib_default="${cross_prefix}${ranlib_default} -D"
4228 else
4229     ranlib_default="${cross_prefix}${ranlib_default}"
4230 fi
4231 strip_default="${cross_prefix}${strip_default}"
4232 windres_default="${cross_prefix}${windres_default}"
4233
4234 sysinclude_default="${sysroot}/usr/include"
4235
4236 if enabled cuda_sdk; then
4237     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4238     enable cuda_nvcc
4239 fi
4240
4241 if enabled cuda_nvcc; then
4242     nvcc_default="nvcc"
4243     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4244 else
4245     nvcc_default="clang"
4246     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4247     NVCC_C=""
4248 fi
4249
4250 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4251     target_exec x86asmexe nvcc
4252 enabled cross_compile || host_cc_default=$cc
4253 set_default host_cc
4254
4255 pkg_config_fail_message=""
4256 if ! $pkg_config --version >/dev/null 2>&1; then
4257     warn "$pkg_config not found, library detection may fail."
4258     pkg_config=false
4259 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4260     pkg_config_fail_message="
4261 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4262 fi
4263
4264 if test $doxygen != $doxygen_default && \
4265   ! $doxygen --version >/dev/null 2>&1; then
4266     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4267 fi
4268
4269 exesuf() {
4270     case $1 in
4271         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4272     esac
4273 }
4274
4275 EXESUF=$(exesuf $target_os)
4276 HOSTEXESUF=$(exesuf $host_os)
4277
4278 # set temporary file name
4279 : ${TMPDIR:=$TEMPDIR}
4280 : ${TMPDIR:=$TMP}
4281 : ${TMPDIR:=/tmp}
4282
4283 if [ -n "$tempprefix" ] ; then
4284     mktemp(){
4285         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4286         echo "$tmpname"
4287         mkdir "$tmpname"
4288     }
4289 elif ! test_cmd mktemp -u XXXXXX; then
4290     # simple replacement for missing mktemp
4291     # NOT SAFE FOR GENERAL USE
4292     mktemp(){
4293         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4294         echo "$tmpname"
4295         mkdir "$tmpname"
4296     }
4297 fi
4298
4299 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4300     die "Unable to create temporary directory in $TMPDIR."
4301
4302 tmpfile(){
4303     tmp="${FFTMPDIR}/test"$2
4304     (set -C; exec > $tmp) 2> /dev/null ||
4305         die "Unable to create temporary file in $FFTMPDIR."
4306     eval $1=$tmp
4307 }
4308
4309 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4310 trap 'exit 2' INT
4311
4312 tmpfile TMPASM .asm
4313 tmpfile TMPC   .c
4314 tmpfile TMPCPP .cpp
4315 tmpfile TMPE   $EXESUF
4316 tmpfile TMPH   .h
4317 tmpfile TMPM   .m
4318 tmpfile TMPCU  .cu
4319 tmpfile TMPO   .o
4320 tmpfile TMPS   .S
4321 tmpfile TMPSH  .sh
4322 tmpfile TMPV   .ver
4323
4324 unset -f mktemp
4325
4326 chmod +x $TMPE
4327
4328 # make sure we can execute files in $TMPDIR
4329 cat > $TMPSH 2>> $logfile <<EOF
4330 #! /bin/sh
4331 EOF
4332 chmod +x $TMPSH >> $logfile 2>&1
4333 if ! $TMPSH >> $logfile 2>&1; then
4334     cat <<EOF
4335 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4336 variable to another directory and make sure that it is not mounted noexec.
4337 EOF
4338     die "Sanity test failed."
4339 fi
4340
4341 armasm_flags(){
4342     for flag; do
4343         case $flag in
4344             # Filter out MSVC cl.exe options from cflags that shouldn't
4345             # be passed to gas-preprocessor
4346             -M[TD]*)                                            ;;
4347             *)                  echo $flag                      ;;
4348         esac
4349    done
4350 }
4351
4352 cparser_flags(){
4353     for flag; do
4354         case $flag in
4355             -Wno-switch)             echo -Wno-switch-enum ;;
4356             -Wno-format-zero-length) ;;
4357             -Wdisabled-optimization) ;;
4358             -Wno-pointer-sign)       echo -Wno-other ;;
4359             *)                       echo $flag ;;
4360         esac
4361     done
4362 }
4363
4364 msvc_common_flags(){
4365     for flag; do
4366         case $flag in
4367             # In addition to specifying certain flags under the compiler
4368             # specific filters, they must be specified here as well or else the
4369             # generic catch all at the bottom will print the original flag.
4370             -Wall)                ;;
4371             -Wextra)              ;;
4372             -std=c99)             ;;
4373             # Common flags
4374             -fomit-frame-pointer) ;;
4375             -g)                   echo -Z7 ;;
4376             -fno-math-errno)      ;;
4377             -fno-common)          ;;
4378             -fno-signed-zeros)    ;;
4379             -fPIC)                ;;
4380             -mthumb)              ;;
4381             -march=*)             ;;
4382             -lz)                  echo zlib.lib ;;
4383             -lx264)               echo libx264.lib ;;
4384             -lstdc++)             ;;
4385             -l*)                  echo ${flag#-l}.lib ;;
4386             -LARGEADDRESSAWARE)   echo $flag ;;
4387             -L*)                  echo -libpath:${flag#-L} ;;
4388             *)                    echo $flag ;;
4389         esac
4390     done
4391 }
4392
4393 msvc_flags(){
4394     msvc_common_flags "$@"
4395     for flag; do
4396         case $flag in
4397             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4398                                        -wd4554 ;;
4399             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4400                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4401                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4402                                        -wd4307 \
4403                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4404         esac
4405     done
4406 }
4407
4408 icl_flags(){
4409     msvc_common_flags "$@"
4410     for flag; do
4411         case $flag in
4412             # Despite what Intel's documentation says -Wall, which is supported
4413             # on Windows, does enable remarks so disable them here.
4414             -Wall)                echo $flag -Qdiag-disable:remark ;;
4415             -std=c99)             echo -Qstd=c99 ;;
4416             -flto)                echo -ipo ;;
4417         esac
4418     done
4419 }
4420
4421 icc_flags(){
4422     for flag; do
4423         case $flag in
4424             -flto)                echo -ipo ;;
4425             *)                    echo $flag ;;
4426         esac
4427     done
4428 }
4429
4430 suncc_flags(){
4431     for flag; do
4432         case $flag in
4433             -march=*|-mcpu=*)
4434                 case "${flag#*=}" in
4435                     native)                   echo -xtarget=native       ;;
4436                     v9|niagara)               echo -xarch=sparc          ;;
4437                     ultrasparc)               echo -xarch=sparcvis       ;;
4438                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4439                     i586|pentium)             echo -xchip=pentium        ;;
4440                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4441                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4442                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4443                     pentium4*)          echo -xtarget=pentium4           ;;
4444                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4445                     *-sse3)             echo -xarch=sse3                 ;;
4446                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4447                     bonnell)                   echo -xarch=ssse3         ;;
4448                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4449                     westmere)                  echo -xtarget=westmere    ;;
4450                     silvermont)                echo -xarch=sse4_2        ;;
4451                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4452                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4453                                                echo -xarch=avx           ;;
4454                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4455                     btver1)                    echo -xarch=amdsse4a      ;;
4456                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4457                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4458                     k8|opteron|athlon64|athlon-fx)
4459                                                echo -xarch=sse2a         ;;
4460                     athlon*)                   echo -xarch=pentium_proa  ;;
4461                 esac
4462                 ;;
4463             -std=c99)             echo -xc99              ;;
4464             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4465             -fPIC)                echo -KPIC -xcode=pic32 ;;
4466             -W*,*)                echo $flag              ;;
4467             -f*-*|-W*|-mimpure-text)                      ;;
4468             -shared)              echo -G                 ;;
4469             *)                    echo $flag              ;;
4470         esac
4471     done
4472 }
4473
4474 probe_cc(){
4475     pfx=$1
4476     _cc=$2
4477     first=$3
4478
4479     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4480     unset _ld_o _ldflags _ld_lib _ld_path
4481     unset _depflags _DEPCMD _DEPFLAGS
4482     _flags_filter=echo
4483
4484     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4485         true # no-op to avoid reading stdin in following checks
4486     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4487         _type=llvm_gcc
4488         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4489         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4490         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4491         _cflags_speed='-O3'
4492         _cflags_size='-Os'
4493     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4494         _type=gcc
4495         gcc_version=$($_cc --version | head -n1)
4496         gcc_basever=$($_cc -dumpversion)
4497         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4498         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4499         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4500         case $gcc_basever in
4501             2) ;;
4502             2.*) ;;
4503             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4504         esac
4505         if [ "$first" = true ]; then
4506             case $gcc_basever in
4507                 4.2*)
4508                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4509             esac
4510         fi
4511         _cflags_speed='-O3'
4512         _cflags_size='-Os'
4513     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4514         _type=icc
4515         _ident=$($_cc --version | head -n1)
4516         _depflags='-MMD'
4517         _cflags_speed='-O3'
4518         _cflags_size='-Os'
4519         _cflags_noopt='-O1'
4520         _flags_filter=icc_flags
4521     elif $_cc -v 2>&1 | grep -q xlc; then
4522         _type=xlc
4523         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4524         _cflags_speed='-O5'
4525         _cflags_size='-O5 -qcompact'
4526     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4527         test -d "$sysroot" || die "No valid sysroot specified."
4528         _type=armcc
4529         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4530         armcc_conf="$PWD/armcc.conf"
4531         $_cc --arm_linux_configure                 \
4532              --arm_linux_config_file="$armcc_conf" \
4533              --configure_sysroot="$sysroot"        \
4534              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4535              die "Error creating armcc configuration file."
4536         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4537         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4538         as_default="${cross_prefix}gcc"
4539         _depflags='-MMD'
4540         _cflags_speed='-O3'
4541         _cflags_size='-Os'
4542     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4543         _type=clang
4544         _ident=$($_cc --version 2>/dev/null | head -n1)
4545         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4546         _cflags_speed='-O3'
4547         _cflags_size='-Oz'
4548     elif $_cc -V 2>&1 | grep -q Sun; then
4549         _type=suncc
4550         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4551         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4552         _DEPFLAGS='-xM1 -xc99'
4553         _ldflags='-std=c99'
4554         _cflags_speed='-O5'
4555         _cflags_size='-O5 -xspace'
4556         _flags_filter=suncc_flags
4557     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4558         _type=pathscale
4559         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4560         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4561         _cflags_speed='-O2'
4562         _cflags_size='-Os'
4563         _flags_filter='filter_out -Wdisabled-optimization'
4564     elif $_cc -v 2>&1 | grep -q Open64; then
4565         _type=open64
4566         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4567         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4568         _cflags_speed='-O2'
4569         _cflags_size='-Os'
4570         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4571     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4572         _type=armasm
4573         _ident=$($_cc | head -n1)
4574         # 4509: "This form of conditional instruction is deprecated"
4575         _flags="-nologo -ignore 4509"
4576         _flags_filter=armasm_flags
4577     elif $_cc 2>&1 | grep -q Intel; then
4578         _type=icl
4579         _ident=$($_cc 2>&1 | head -n1)
4580         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4581         # Not only is O3 broken on 13.x+ but it is slower on all previous
4582         # versions (tested) as well.
4583         _cflags_speed="-O2"
4584         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4585         if $_cc 2>&1 | grep -q Linker; then
4586             _ld_o='-out:$@'
4587         else
4588             _ld_o='-Fe$@'
4589         fi
4590         _cc_o='-Fo$@'
4591         _cc_e='-P'
4592         _flags_filter=icl_flags
4593         _ld_lib='lib%.a'
4594         _ld_path='-libpath:'
4595         # -Qdiag-error to make icl error when seeing certain unknown arguments
4596         _flags='-nologo -Qdiag-error:4044,10157'
4597         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4598         # with MSVC which enables it by default.
4599         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4600         disable stripping
4601     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4602         # lld can emulate multiple different linkers; in ms link.exe mode,
4603         # the -? parameter gives the help output which contains an identifyable
4604         # string, while it gives an error in other modes.
4605         _type=lld-link
4606         # The link.exe mode doesn't have a switch for getting the version,
4607         # but we can force it back to gnu mode and get the version from there.
4608         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4609         _ld_o='-out:$@'
4610         _flags_filter=msvc_flags
4611         _ld_lib='lib%.a'
4612         _ld_path='-libpath:'
4613     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4614         _type=msvc
4615         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4616         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4617         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4618         _cflags_speed="-O2"
4619         _cflags_size="-O1"
4620         _cflags_noopt="-O1"
4621         if $_cc -nologo- 2>&1 | grep -q Linker; then
4622             _ld_o='-out:$@'
4623         else
4624             _ld_o='-Fe$@'
4625         fi
4626         _cc_o='-Fo$@'
4627         _cc_e='-P -Fi$@'
4628         _flags_filter=msvc_flags
4629         _ld_lib='lib%.a'
4630         _ld_path='-libpath:'
4631         _flags='-nologo'
4632         disable stripping
4633     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4634         _type=cparser
4635         _ident=$($_cc --version | head -n1)
4636         _depflags='-MMD'
4637         _cflags_speed='-O4'
4638         _cflags_size='-O2'
4639         _flags_filter=cparser_flags
4640     fi
4641
4642     eval ${pfx}_type=\$_type
4643     eval ${pfx}_ident=\$_ident
4644 }
4645
4646 set_ccvars(){
4647     eval ${1}_C=\${_cc_c-\${${1}_C}}
4648     eval ${1}_E=\${_cc_e-\${${1}_E}}
4649     eval ${1}_O=\${_cc_o-\${${1}_O}}
4650
4651     if [ -n "$_depflags" ]; then
4652         eval ${1}_DEPFLAGS=\$_depflags
4653     else
4654         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4655         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4656         eval DEP${1}FLAGS=\$_flags
4657     fi
4658 }
4659
4660 probe_cc cc "$cc" "true"
4661 cflags_filter=$_flags_filter
4662 cflags_speed=$_cflags_speed
4663 cflags_size=$_cflags_size
4664 cflags_noopt=$_cflags_noopt
4665 add_cflags $_flags $_cflags
4666 cc_ldflags=$_ldflags
4667 set_ccvars CC
4668 set_ccvars CXX
4669
4670 probe_cc hostcc "$host_cc"
4671 host_cflags_filter=$_flags_filter
4672 host_cflags_speed=$_cflags_speed
4673 add_host_cflags  $_flags $_cflags
4674 set_ccvars HOSTCC
4675
4676 test -n "$cc_type" && enable $cc_type ||
4677     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4678
4679 : ${as_default:=$cc}
4680 : ${objcc_default:=$cc}
4681 : ${dep_cc_default:=$cc}
4682 : ${ld_default:=$cc}
4683 : ${host_ld_default:=$host_cc}
4684 set_default ar as objcc dep_cc ld ln_s host_ld windres
4685
4686 probe_cc as "$as"
4687 asflags_filter=$_flags_filter
4688 add_asflags $_flags $_cflags
4689 set_ccvars AS
4690
4691 probe_cc objcc "$objcc"
4692 objcflags_filter=$_flags_filter
4693 add_objcflags $_flags $_cflags
4694 set_ccvars OBJC
4695
4696 probe_cc ld "$ld"
4697 ldflags_filter=$_flags_filter
4698 add_ldflags $_flags $_ldflags
4699 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4700 LD_O=${_ld_o-$LD_O}
4701 LD_LIB=${_ld_lib-$LD_LIB}
4702 LD_PATH=${_ld_path-$LD_PATH}
4703
4704 probe_cc hostld "$host_ld"
4705 host_ldflags_filter=$_flags_filter
4706 add_host_ldflags $_flags $_ldflags
4707 HOSTLD_O=${_ld_o-$HOSTLD_O}
4708
4709 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4710     probe_cc depcc "$dep_cc"
4711     CCDEP=${_DEPCMD:-$DEPCMD}
4712     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4713     DEPCCFLAGS=$_flags
4714 fi
4715
4716 if $ar 2>&1 | grep -q Microsoft; then
4717     arflags="-nologo"
4718     ar_o='-out:$@'
4719 elif $ar 2>&1 | grep -q "\[D\] "; then
4720     arflags="rcD"
4721     ar_o='$@'
4722 else
4723     arflags="rc"
4724     ar_o='$@'
4725 fi
4726
4727 add_cflags $extra_cflags
4728 add_cxxflags $extra_cxxflags
4729 add_objcflags $extra_objcflags
4730 add_asflags $extra_cflags
4731
4732 if test -n "$sysroot"; then
4733     case "$cc_type" in
4734         gcc|llvm_gcc|clang)
4735             add_cppflags --sysroot="$sysroot"
4736             add_ldflags --sysroot="$sysroot"
4737         ;;
4738     esac
4739 fi
4740
4741 if test "$cpu" = host; then
4742     enabled cross_compile &&
4743         die "--cpu=host makes no sense when cross-compiling."
4744
4745     case "$cc_type" in
4746         gcc|llvm_gcc)
4747             check_native(){
4748                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4749                 sed -n "/cc1.*$1=/{
4750                             s/.*$1=\\([^ ]*\\).*/\\1/
4751                             p
4752                             q
4753                         }" $TMPE
4754             }
4755             cpu=$(check_native -march || check_native -mcpu)
4756         ;;
4757         clang)
4758             check_native(){
4759                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4760                 sed -n "/cc1.*-target-cpu /{
4761                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4762                             p
4763                             q
4764                         }" $TMPE
4765             }
4766             cpu=$(check_native -march)
4767         ;;
4768     esac
4769
4770     test "${cpu:-host}" = host &&
4771         die "--cpu=host not supported with compiler $cc"
4772 fi
4773
4774 # Deal with common $arch aliases
4775 case "$arch" in
4776     aarch64|arm64)
4777         arch="aarch64"
4778     ;;
4779     arm*|iPad*|iPhone*)
4780         arch="arm"
4781     ;;
4782     mips*|IP*)
4783         case "$arch" in
4784         *el)
4785             add_cppflags -EL
4786             add_ldflags -EL
4787         ;;
4788         *eb)
4789             add_cppflags -EB
4790             add_ldflags -EB
4791         ;;
4792         esac
4793         arch="mips"
4794     ;;
4795     parisc*|hppa*)
4796         arch="parisc"
4797     ;;
4798     "Power Macintosh"|ppc*|powerpc*)
4799         arch="ppc"
4800     ;;
4801     s390|s390x)
4802         arch="s390"
4803     ;;
4804     sh4|sh)
4805         arch="sh4"
4806     ;;
4807     sun4*|sparc*)
4808         arch="sparc"
4809     ;;
4810     tilegx|tile-gx)
4811         arch="tilegx"
4812     ;;
4813     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4814         arch="x86"
4815     ;;
4816 esac
4817
4818 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4819 enable $arch
4820
4821 # Add processor-specific flags
4822 if enabled aarch64; then
4823
4824     case $cpu in
4825         armv*)
4826             cpuflags="-march=$cpu"
4827         ;;
4828         *)
4829             cpuflags="-mcpu=$cpu"
4830         ;;
4831     esac
4832
4833 elif enabled alpha; then
4834
4835     cpuflags="-mcpu=$cpu"
4836
4837 elif enabled arm; then
4838
4839     check_arm_arch() {
4840         test_cpp_condition stddef.h \
4841             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4842             $cpuflags
4843     }
4844
4845     probe_arm_arch() {
4846         if   check_arm_arch 4;        then echo armv4
4847         elif check_arm_arch 4T;       then echo armv4t
4848         elif check_arm_arch 5;        then echo armv5
4849         elif check_arm_arch 5E;       then echo armv5e
4850         elif check_arm_arch 5T;       then echo armv5t
4851         elif check_arm_arch 5TE;      then echo armv5te
4852         elif check_arm_arch 5TEJ;     then echo armv5te
4853         elif check_arm_arch 6;        then echo armv6
4854         elif check_arm_arch 6J;       then echo armv6j
4855         elif check_arm_arch 6K;       then echo armv6k
4856         elif check_arm_arch 6Z;       then echo armv6z
4857         elif check_arm_arch 6KZ;      then echo armv6zk
4858         elif check_arm_arch 6ZK;      then echo armv6zk
4859         elif check_arm_arch 6T2;      then echo armv6t2
4860         elif check_arm_arch 7;        then echo armv7
4861         elif check_arm_arch 7A  7_A;  then echo armv7-a
4862         elif check_arm_arch 7S;       then echo armv7-a
4863         elif check_arm_arch 7R  7_R;  then echo armv7-r
4864         elif check_arm_arch 7M  7_M;  then echo armv7-m
4865         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4866         elif check_arm_arch 8A  8_A;  then echo armv8-a
4867         fi
4868     }
4869
4870     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4871
4872     case $cpu in
4873         armv*)
4874             cpuflags="-march=$cpu"
4875             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4876         ;;
4877         *)
4878             cpuflags="-mcpu=$cpu"
4879             case $cpu in
4880                 cortex-a*)                               subarch=armv7a  ;;
4881                 cortex-r*)                               subarch=armv7r  ;;
4882                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4883                 arm11*)                                  subarch=armv6   ;;
4884                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4885                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4886                 *)                             subarch=$(probe_arm_arch) ;;
4887             esac
4888         ;;
4889     esac
4890
4891     case "$subarch" in
4892         armv5t*)    enable fast_clz                ;;
4893         armv[6-8]*)
4894             enable fast_clz
4895             disabled fast_unaligned || enable fast_unaligned
4896             ;;
4897     esac
4898
4899 elif enabled avr32; then
4900
4901     case $cpu in
4902         ap7[02]0[0-2])
4903             subarch="avr32_ap"
4904             cpuflags="-mpart=$cpu"
4905         ;;
4906         ap)
4907             subarch="avr32_ap"
4908             cpuflags="-march=$cpu"
4909         ;;
4910         uc3[ab]*)
4911             subarch="avr32_uc"
4912             cpuflags="-mcpu=$cpu"
4913         ;;
4914         uc)
4915             subarch="avr32_uc"
4916             cpuflags="-march=$cpu"
4917         ;;
4918     esac
4919
4920 elif enabled bfin; then
4921
4922     cpuflags="-mcpu=$cpu"
4923
4924 elif enabled mips; then
4925
4926     cpuflags="-march=$cpu"
4927
4928     if [ "$cpu" != "generic" ]; then
4929         disable mips32r2
4930         disable mips32r5
4931         disable mips64r2
4932         disable mips32r6
4933         disable mips64r6
4934         disable loongson2
4935         disable loongson3
4936
4937         case $cpu in
4938             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4939                 enable mips32r2
4940                 disable msa
4941             ;;
4942             p5600|i6400|p6600)
4943                 disable mipsdsp
4944                 disable mipsdspr2
4945             ;;
4946             loongson*)
4947                 enable loongson2
4948                 enable loongson3
4949                 enable local_aligned
4950                 enable simd_align_16
4951                 enable fast_64bit
4952                 enable fast_clz
4953                 enable fast_cmov
4954                 enable fast_unaligned
4955                 disable aligned_stack
4956                 disable mipsdsp
4957                 disable mipsdspr2
4958                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4959                 if [ $cc == gcc ]; then
4960                     gcc_version=$(gcc -dumpversion)
4961                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4962                         expensive_optimization_flag=""
4963                     else
4964                         expensive_optimization_flag="-fno-expensive-optimizations"
4965                     fi
4966                 fi
4967                 case $cpu in
4968                     loongson3*)
4969                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4970                     ;;
4971                     loongson2e)
4972                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4973                     ;;
4974                     loongson2f)
4975                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4976                     ;;
4977                 esac
4978             ;;
4979             *)
4980                 # Unknown CPU. Disable everything.
4981                 warn "unknown CPU. Disabling all MIPS optimizations."
4982                 disable mipsfpu
4983                 disable mipsdsp
4984                 disable mipsdspr2
4985                 disable msa
4986                 disable mmi
4987             ;;
4988         esac
4989
4990         case $cpu in
4991             24kc)
4992                 disable mipsfpu
4993                 disable mipsdsp
4994                 disable mipsdspr2
4995             ;;
4996             24kf*)
4997                 disable mipsdsp
4998                 disable mipsdspr2
4999             ;;
5000             24kec|34kc|1004kc)
5001                 disable mipsfpu
5002                 disable mipsdspr2
5003             ;;
5004             24kef*|34kf*|1004kf*)
5005                 disable mipsdspr2
5006             ;;
5007             74kc)
5008                 disable mipsfpu
5009             ;;
5010             p5600)
5011                 enable mips32r5
5012                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5013             ;;
5014             i6400)
5015                 enable mips64r6
5016                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5017             ;;
5018             p6600)
5019                 enable mips64r6
5020                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5021             ;;
5022         esac
5023     else
5024         # We do not disable anything. Is up to the user to disable the unwanted features.
5025         warn 'generic cpu selected'
5026     fi
5027
5028 elif enabled ppc; then
5029
5030     disable ldbrx
5031
5032     case $(tolower $cpu) in
5033         601|ppc601|powerpc601)
5034             cpuflags="-mcpu=601"
5035             disable altivec
5036         ;;
5037         603*|ppc603*|powerpc603*)
5038             cpuflags="-mcpu=603"
5039             disable altivec
5040         ;;
5041         604*|ppc604*|powerpc604*)
5042             cpuflags="-mcpu=604"
5043             disable altivec
5044         ;;
5045         g3|75*|ppc75*|powerpc75*)
5046             cpuflags="-mcpu=750"
5047             disable altivec
5048         ;;
5049         g4|745*|ppc745*|powerpc745*)
5050             cpuflags="-mcpu=7450"
5051             disable vsx
5052         ;;
5053         74*|ppc74*|powerpc74*)
5054             cpuflags="-mcpu=7400"
5055             disable vsx
5056         ;;
5057         g5|970|ppc970|powerpc970)
5058             cpuflags="-mcpu=970"
5059             disable vsx
5060         ;;
5061         power[3-6]*)
5062             cpuflags="-mcpu=$cpu"
5063             disable vsx
5064         ;;
5065         power[7-8]*)
5066             cpuflags="-mcpu=$cpu"
5067         ;;
5068         cell)
5069             cpuflags="-mcpu=cell"
5070             enable ldbrx
5071             disable vsx
5072         ;;
5073         e500mc)
5074             cpuflags="-mcpu=e500mc"
5075             disable altivec
5076         ;;
5077         e500v2)
5078             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5079             disable altivec
5080             disable dcbzl
5081         ;;
5082         e500)
5083             cpuflags="-mcpu=8540 -mhard-float"
5084             disable altivec
5085             disable dcbzl
5086         ;;
5087     esac
5088
5089 elif enabled sparc; then
5090
5091     case $cpu in
5092         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5093             cpuflags="-mcpu=$cpu"
5094         ;;
5095         ultrasparc*|niagara[234])
5096             cpuflags="-mcpu=$cpu"
5097         ;;
5098     esac
5099
5100 elif enabled x86; then
5101
5102     case $cpu in
5103         i[345]86|pentium)
5104             cpuflags="-march=$cpu"
5105             disable i686
5106             disable mmx
5107         ;;
5108         # targets that do NOT support nopl and conditional mov (cmov)
5109         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5110             cpuflags="-march=$cpu"
5111             disable i686
5112         ;;
5113         # targets that do support nopl and conditional mov (cmov)
5114         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5115         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5116         |amdfam10|barcelona|b[dt]ver*|znver*)
5117             cpuflags="-march=$cpu"
5118             enable i686
5119             enable fast_cmov
5120         ;;
5121         # targets that do support conditional mov but on which it's slow
5122         pentium4|pentium4m|prescott|nocona)
5123             cpuflags="-march=$cpu"
5124             enable i686
5125             disable fast_cmov
5126         ;;
5127     esac
5128
5129 fi
5130
5131 if [ "$cpu" != generic ]; then
5132     add_cflags  $cpuflags
5133     add_asflags $cpuflags
5134     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5135 fi
5136
5137 # compiler sanity check
5138 test_exec <<EOF
5139 int main(void){ return 0; }
5140 EOF
5141 if test "$?" != 0; then
5142     echo "$cc is unable to create an executable file."
5143     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5144         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5145         echo "Only do this if you know what cross compiling means."
5146     fi
5147     die "C compiler test failed."
5148 fi
5149
5150 add_cppflags -D_ISOC99_SOURCE
5151 add_cxxflags -D__STDC_CONSTANT_MACROS
5152 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5153
5154 # some compilers silently accept -std=c11, so we also need to check that the
5155 # version macro is defined properly
5156 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5157     add_cflags -std=c11 ||
5158     check_cflags -std=c99
5159
5160 check_cppflags -D_FILE_OFFSET_BITS=64
5161 check_cppflags -D_LARGEFILE_SOURCE
5162
5163 add_host_cppflags -D_ISOC99_SOURCE
5164 check_host_cflags -std=c99
5165 check_host_cflags -Wall
5166 check_host_cflags $host_cflags_speed
5167
5168 check_64bit(){
5169     arch32=$1
5170     arch64=$2
5171     expr=${3:-'sizeof(void *) > 4'}
5172     test_code cc "" "int test[2*($expr) - 1]" &&
5173         subarch=$arch64 || subarch=$arch32
5174     enable $subarch
5175 }
5176
5177 case "$arch" in
5178     aarch64|alpha|ia64)
5179         enabled shared && enable_weak pic
5180     ;;
5181     mips)
5182         check_64bit mips mips64 '_MIPS_SIM > 1'
5183         enabled shared && enable_weak pic
5184     ;;
5185     parisc)
5186         check_64bit parisc parisc64
5187         enabled shared && enable_weak pic
5188     ;;
5189     ppc)
5190         check_64bit ppc ppc64
5191         enabled shared && enable_weak pic
5192     ;;
5193     s390)
5194         check_64bit s390 s390x
5195         enabled shared && enable_weak pic
5196     ;;
5197     sparc)
5198         check_64bit sparc sparc64
5199         enabled shared && enable_weak pic
5200     ;;
5201     x86)
5202         check_64bit x86_32 x86_64
5203         # Treat x32 as x64 for now. Note it also needs pic if shared
5204         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5205             subarch=x86_64 && enable x86_64 && disable x86_32
5206         if enabled x86_64; then
5207             enabled shared && enable_weak pic
5208             objformat=elf64
5209         fi
5210     ;;
5211 esac
5212
5213 # OS specific
5214 case $target_os in
5215     aix)
5216         SHFLAGS=-shared
5217         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5218         enabled shared && add_ldflags -Wl,-brtl
5219         arflags='-Xany -r -c'
5220         striptype=""
5221         ;;
5222     android)
5223         disable symver
5224         enable section_data_rel_ro
5225         add_cflags -fPIE
5226         add_ldexeflags -fPIE -pie
5227         SLIB_INSTALL_NAME='$(SLIBNAME)'
5228         SLIB_INSTALL_LINKS=
5229         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5230         ;;
5231     haiku)
5232         prefix_default="/boot/common"
5233         network_extralibs="-lnetwork"
5234         host_extralibs=
5235         ;;
5236     sunos)
5237         SHFLAGS='-shared -Wl,-h,$$(@F)'
5238         enabled x86 && append SHFLAGS -mimpure-text
5239         network_extralibs="-lsocket -lnsl"
5240         add_cppflags -D__EXTENSIONS__
5241         # When using suncc to build, the Solaris linker will mark
5242         # an executable with each instruction set encountered by
5243         # the Solaris assembler.  As our libraries contain their own
5244         # guards for processor-specific code, instead suppress
5245         # generation of the HWCAPS ELF section on Solaris x86 only.
5246         enabled_all suncc x86 &&
5247             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5248             add_ldflags -Wl,-M,mapfile
5249         nm_default='nm -P -g'
5250         striptype=""
5251         version_script='-M'
5252         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5253         ;;
5254     netbsd)
5255         disable symver
5256         oss_indev_extralibs="-lossaudio"
5257         oss_outdev_extralibs="-lossaudio"
5258         enabled gcc || check_ldflags -Wl,-zmuldefs
5259         ;;
5260     openbsd|bitrig)
5261         disable symver
5262         striptype=""
5263         SHFLAGS='-shared'
5264         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5265         SLIB_INSTALL_LINKS=
5266         oss_indev_extralibs="-lossaudio"
5267         oss_outdev_extralibs="-lossaudio"
5268         ;;
5269     dragonfly)
5270         disable symver
5271         ;;
5272     freebsd)
5273         ;;
5274     bsd/os)
5275         add_extralibs -lpoll -lgnugetopt
5276         strip="strip -d"
5277         ;;
5278     darwin)
5279         enabled ppc && add_asflags -force_cpusubtype_ALL
5280         install_name_dir_default='$(SHLIBDIR)'
5281         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5282         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5283         strip="${strip} -x"
5284         add_ldflags -Wl,-dynamic,-search_paths_first
5285         check_cflags -Werror=partial-availability
5286         SLIBSUF=".dylib"
5287         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5288         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5289         enabled x86_64 && objformat="macho64" || objformat="macho32"
5290         enabled_any pic shared x86_64 ||
5291             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5292         check_headers dispatch/dispatch.h &&
5293             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5294         if test -n "$sysroot"; then
5295             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5296             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5297         fi
5298         version_script='-exported_symbols_list'
5299         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5300         ;;
5301     msys*)
5302         die "Native MSYS builds are discouraged, please use the MINGW environment."
5303         ;;
5304     mingw32*|mingw64*)
5305         target_os=mingw32
5306         LIBTARGET=i386
5307         if enabled x86_64; then
5308             LIBTARGET="i386:x86-64"
5309         elif enabled arm; then
5310             LIBTARGET="arm"
5311         elif enabled aarch64; then
5312             LIBTARGET="arm64"
5313         fi
5314         if enabled shared; then
5315             # Cannot build both shared and static libs when using dllimport.
5316             disable static
5317         fi
5318         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5319         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5320         shlibdir_default="$bindir_default"
5321         SLIBPREF=""
5322         SLIBSUF=".dll"
5323         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5324         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5325         if test_cmd lib.exe -list; then
5326             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5327             if enabled x86_64; then
5328                 LIBTARGET=x64
5329             fi
5330         else
5331             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5332         fi
5333         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5334         SLIB_INSTALL_LINKS=
5335         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5336         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5337         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5338         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5339         enabled x86_64 && objformat="win64" || objformat="win32"
5340         dlltool="${cross_prefix}dlltool"
5341         ranlib=:
5342         enable dos_paths
5343         check_ldflags -Wl,--nxcompat,--dynamicbase
5344         # Lets work around some stupidity in binutils.
5345         # ld will strip relocations from executables even though we need them
5346         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5347         # however ld then forgets what the entry point should be (oops) so we
5348         # have to manually (re)set it.
5349         if enabled x86_32; then
5350             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5351         elif enabled x86_64; then
5352             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5353             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5354             # Set image base >4GB for extra entropy with HEASLR
5355             add_ldexeflags -Wl,--image-base,0x140000000
5356             append SHFLAGS -Wl,--image-base,0x180000000
5357         fi
5358         ;;
5359     win32|win64)
5360         disable symver
5361         if enabled shared; then
5362             # Link to the import library instead of the normal static library
5363             # for shared libs.
5364             LD_LIB='%.lib'
5365             # Cannot build both shared and static libs with MSVC or icl.
5366             disable static
5367         fi
5368         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5369         shlibdir_default="$bindir_default"
5370         SLIBPREF=""
5371         SLIBSUF=".dll"
5372         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5373         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5374         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5375         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5376         SLIB_INSTALL_LINKS=
5377         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5378         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5379         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5380         enabled x86_64 && objformat="win64" || objformat="win32"
5381         ranlib=:
5382         enable dos_paths
5383         ;;
5384     cygwin*)
5385         target_os=cygwin
5386         shlibdir_default="$bindir_default"
5387         SLIBPREF="cyg"
5388         SLIBSUF=".dll"
5389         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5390         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5391         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5392         SLIB_INSTALL_LINKS=
5393         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5394         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5395         enabled x86_64 && objformat="win64" || objformat="win32"
5396         enable dos_paths
5397         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5398         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5399         ;;
5400     *-dos|freedos|opendos)
5401         network_extralibs="-lsocket"
5402         objformat="coff"
5403         enable dos_paths
5404         ;;
5405     linux)
5406         enable section_data_rel_ro
5407         enabled_any arm aarch64 && enable_weak linux_perf
5408         ;;
5409     irix*)
5410         target_os=irix
5411         ranlib="echo ignoring ranlib"
5412         ;;
5413     os/2*)
5414         strip="lxlite -CS"
5415         striptype=""
5416         objformat="aout"
5417         add_cppflags -D_GNU_SOURCE
5418         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5419         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5420         LIBSUF="_s.a"
5421         SLIBPREF=""
5422         SLIBSUF=".dll"
5423         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5424         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5425         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5426             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5427             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5428             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5429             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5430         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5431             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5432         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5433         SLIB_INSTALL_LINKS=
5434         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5435         enable dos_paths
5436         enable_weak os2threads
5437         ;;
5438     gnu/kfreebsd)
5439         add_cppflags -D_BSD_SOURCE
5440         ;;
5441     gnu)
5442         ;;
5443     qnx)
5444         add_cppflags -D_QNX_SOURCE
5445         network_extralibs="-lsocket"
5446         ;;
5447     symbian)
5448         SLIBSUF=".dll"
5449         enable dos_paths
5450         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5451         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5452         add_ldflags -Wl,--target1-abs,--no-undefined \
5453                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5454                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5455         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5456                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5457                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5458         ;;
5459     minix)
5460         ;;
5461     none)
5462         ;;
5463     *)
5464         die "Unknown OS '$target_os'."
5465         ;;
5466 esac
5467
5468 # test if creating links works
5469 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5470 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5471 mkdir "$link_dest"
5472 $ln_s "$link_dest" "$link_name"
5473 touch "$link_dest/test_file"
5474 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5475     # create link to source path
5476     [ -e src ] && rm src
5477     $ln_s "$source_path" src
5478     source_link=src
5479 else
5480     # creating directory links doesn't work
5481     # fall back to using the full source path
5482     source_link="$source_path"
5483 fi
5484 # cleanup
5485 rm -r "$link_dest"
5486 rm -r "$link_name"
5487
5488 # determine libc flavour
5489
5490 probe_libc(){
5491     pfx=$1
5492     pfx_no_=${pfx%_}
5493     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5494     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5495         eval ${pfx}libc_type=uclibc
5496         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5497     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5498         eval ${pfx}libc_type=glibc
5499         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5500     # MinGW headers can be installed on Cygwin, so check for newlib first.
5501     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5502         eval ${pfx}libc_type=newlib
5503         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5504     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5505     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5506         eval ${pfx}libc_type=mingw64
5507         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5508             add_compat msvcrt/snprintf.o
5509             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5510         fi
5511         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5512         eval test \$${pfx_no_}cc_type = "gcc" &&
5513             add_${pfx}cppflags -D__printf__=__gnu_printf__
5514         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5515             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5516         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5517     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5518          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5519         eval ${pfx}libc_type=mingw32
5520         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5521             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5522             die "ERROR: MinGW32 runtime version must be >= 3.15."
5523         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5524         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5525             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5526         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5527             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5528         eval test \$${pfx_no_}cc_type = "gcc" &&
5529             add_${pfx}cppflags -D__printf__=__gnu_printf__
5530         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5531     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5532         eval ${pfx}libc_type=msvcrt
5533         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5534             if [ "$pfx" = host_ ]; then
5535                 add_host_cppflags -Dsnprintf=_snprintf
5536             else
5537                 add_compat strtod.o strtod=avpriv_strtod
5538                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5539                                              _snprintf=avpriv_snprintf  \
5540                                              vsnprintf=avpriv_vsnprintf
5541             fi
5542         fi
5543         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5544         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5545         # 0x601 by default unless something else is set by the user.
5546         # This can easily lead to us detecting functions only present
5547         # in such new versions and producing binaries requiring windows 7.0.
5548         # Therefore explicitly set the default to Vista unless the user has
5549         # set something else on the command line.
5550         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5551         # family. For these cases, configure is free to use any functions
5552         # found in the SDK headers by default. (Alternatively, we could force
5553         # _WIN32_WINNT to 0x0602 in that case.)
5554         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5555             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5556 #ifdef WINAPI_FAMILY
5557 #include <winapifamily.h>
5558 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5559 #error not desktop
5560 #endif
5561 #endif
5562 EOF
5563         if [ "$pfx" = "" ]; then
5564             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5565             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5566         fi
5567     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5568         eval ${pfx}libc_type=klibc
5569     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5570         eval ${pfx}libc_type=bionic
5571     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5572         eval ${pfx}libc_type=solaris
5573         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5574     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5575         eval ${pfx}libc_type=djgpp
5576         add_cppflags -U__STRICT_ANSI__
5577         add_cflags "-include $source_path/compat/djgpp/math.h"
5578         add_compat djgpp/math.o
5579     fi
5580     test_${pfx}cc <<EOF
5581 #include <time.h>
5582 void *v = localtime_r;
5583 EOF
5584 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5585 #include <time.h>
5586 void *v = localtime_r;
5587 EOF
5588
5589     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5590 }
5591
5592 probe_libc
5593 probe_libc host_
5594
5595 # hacks for compiler/libc/os combinations
5596
5597 case $libc_type in
5598     bionic)
5599         add_compat strtod.o strtod=avpriv_strtod
5600         ;;
5601 esac
5602
5603 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5604     add_cppflags '-I\$(SRC_PATH)/compat/float'
5605
5606 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5607
5608 set_default libdir
5609 : ${shlibdir_default:="$libdir"}
5610 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5611
5612 set_default $PATHS_LIST
5613 set_default nm
5614
5615 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5616
5617 enable_weak_pic() {
5618     disabled pic && return
5619     enable pic
5620     add_cppflags -DPIC
5621     case "$target_os" in
5622     mingw*|cygwin*|win*)
5623         ;;
5624     *)
5625         add_cflags -fPIC
5626         add_asflags -fPIC
5627         ;;
5628     esac
5629 }
5630
5631 enabled pic && enable_weak_pic
5632
5633 test_cc <<EOF || die "Symbol mangling check failed."
5634 int ff_extern;
5635 EOF
5636 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5637 extern_prefix=${sym%%ff_extern*}
5638
5639 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5640
5641 for restrict_keyword in restrict __restrict__ __restrict ""; do
5642     test_code cc "" "char * $restrict_keyword p" && break
5643 done
5644
5645 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5646
5647 # The global variable ensures the bits appear unchanged in the object file.
5648 test_cc <<EOF || die "endian test failed"
5649 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5650 EOF
5651 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5652
5653 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5654
5655 if ! enabled ppc64 || enabled bigendian; then
5656     disable vsx
5657 fi
5658
5659 check_gas() {
5660     log "check_gas using '$as' as AS"
5661     # :vararg is used on aarch64, arm and ppc altivec
5662     check_as vararg "
5663 .macro m n, y:vararg=0
5664 \n: .int \y
5665 .endm
5666 m x" || return 1
5667     # .altmacro is only used in arm asm
5668     ! enabled arm || check_as gnu_as ".altmacro"
5669 }
5670
5671 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5672     nogas=:
5673     enabled_any arm aarch64 && nogas=die
5674     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5675     as_noop=-v
5676
5677     case $as_type in
5678         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5679         gcc)  gaspp_as_type=gas ;;
5680         *)    gaspp_as_type=$as_type ;;
5681     esac
5682
5683     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5684
5685     test "${as#*gas-preprocessor.pl}" != "$as" ||
5686     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5687         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5688
5689     if ! check_gas ; then
5690         as=${gas:=$as}
5691         check_gas || \
5692             $nogas "GNU assembler not found, install/update gas-preprocessor"
5693     fi
5694
5695     check_as as_func ".func test
5696                       .endfunc"
5697 fi
5698
5699 check_inline_asm inline_asm_labels '"1:\n"'
5700
5701 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5702
5703 if enabled aarch64; then
5704     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5705     # internal assembler in clang 3.3 does not support this instruction
5706     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5707     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5708
5709     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5710
5711 elif enabled alpha; then
5712
5713     check_cflags -mieee
5714
5715 elif enabled arm; then
5716
5717     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5718     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5719 float func(float a, float b){ return a+b; }
5720 EOF
5721     enabled thumb && check_cflags -mthumb || check_cflags -marm
5722
5723     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5724         :
5725     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5726         :
5727     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5728         case "${cross_prefix:-$cc}" in
5729             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5730             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5731 __asm__ (".eabi_attribute 28, 1");
5732 int main(void) { return 0; }
5733 EOF
5734         esac
5735         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5736     fi
5737
5738     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5739     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5740     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5741     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5742     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5743     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5744     enabled setend  && check_insn setend  'setend be'
5745
5746     [ $target_os = linux ] || [ $target_os = android ] ||
5747         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5748             $ARCH_EXT_LIST_ARM
5749
5750     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5751
5752     check_as as_arch_directive ".arch armv7-a"
5753     check_as as_dn_directive   "ra .dn d0.i16"
5754     check_as as_fpu_directive  ".fpu neon"
5755
5756     # llvm's integrated assembler supports .object_arch from llvm 3.5
5757     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5758         check_as as_object_arch ".object_arch armv4"
5759
5760     # MS armasm fails to assemble our PIC constructs
5761     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5762
5763 elif enabled mips; then
5764
5765     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5766     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5767     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5768
5769     # Enable minimum ISA based on selected options
5770     if enabled mips64; then
5771         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5772         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5773         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5774     else
5775         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5776         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5777         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5778         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5779     fi
5780
5781     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5782     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5783     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5784     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5785     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5786     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5787
5788     if enabled bigendian && enabled msa; then
5789         disable msa
5790     fi
5791
5792 elif enabled parisc; then
5793
5794     if enabled gcc; then
5795         case $($cc -dumpversion) in
5796             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5797         esac
5798     fi
5799
5800 elif enabled ppc; then
5801
5802     enable local_aligned
5803
5804     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5805     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5806     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5807     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5808
5809     if enabled altivec; then
5810         check_cflags -maltivec -mabi=altivec
5811
5812         # check if our compiler supports Motorola AltiVec C API
5813         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5814                                     vector signed int v2 = (vector signed int) { 1 };
5815                                     v1 = vec_add(v1, v2);"
5816
5817         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5818     fi
5819
5820     if enabled vsx; then
5821         check_cflags -mvsx &&
5822         check_cc vsx altivec.h "int v[4] = { 0 };
5823                                 vector signed int v1 = vec_vsx_ld(0, v);"
5824     fi
5825
5826     if enabled power8; then
5827         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5828     fi
5829
5830 elif enabled x86; then
5831
5832     check_builtin rdtsc    intrin.h   "__rdtsc()"
5833     check_builtin mm_empty mmintrin.h "_mm_empty()"
5834
5835     enable local_aligned
5836
5837     # check whether EBP is available on x86
5838     # As 'i' is stored on the stack, this program will crash
5839     # if the base pointer is used to access it because the
5840     # base pointer is cleared in the inline assembly code.
5841     check_exec_crash <<EOF && enable ebp_available
5842 volatile int i=0;
5843 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5844 return i;
5845 EOF
5846
5847     # check whether EBX is available on x86
5848     check_inline_asm ebx_available '""::"b"(0)' &&
5849         check_inline_asm ebx_available '"":::"%ebx"'
5850
5851     # check whether xmm clobbers are supported
5852     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5853
5854     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5855         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5856
5857     # check whether binutils is new enough to compile SSSE3/MMXEXT
5858     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5859     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5860
5861     probe_x86asm(){
5862         x86asmexe_probe=$1
5863         if test_cmd $x86asmexe_probe -v; then
5864             x86asmexe=$x86asmexe_probe
5865             x86asm_type=nasm
5866             x86asm_debug="-g -F dwarf"
5867             X86ASMDEP=
5868             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5869         elif test_cmd $x86asmexe_probe --version; then
5870             x86asmexe=$x86asmexe_probe
5871             x86asm_type=yasm
5872             x86asm_debug="-g dwarf2"
5873             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5874             X86ASM_DEPFLAGS=
5875         fi
5876         check_x86asm x86asm "movbe ecx, [5]"
5877     }
5878
5879     if ! disabled_any asm mmx x86asm; then
5880         disable x86asm
5881         for program in $x86asmexe nasm yasm; do
5882             probe_x86asm $program && break
5883         done
5884         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5885         X86ASMFLAGS="-f $objformat"
5886         enabled pic               && append X86ASMFLAGS "-DPIC"
5887         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5888         case "$objformat" in
5889             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5890         esac
5891
5892         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5893         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5894         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5895         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5896         check_x86asm cpunop          "CPU amdnop"
5897     fi
5898
5899     case "$cpu" in
5900         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5901             disable fast_clz
5902         ;;
5903     esac
5904
5905 fi
5906
5907 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5908
5909 check_ldflags -Wl,--as-needed
5910 check_ldflags -Wl,-z,noexecstack
5911
5912 if ! disabled network; then
5913     check_func getaddrinfo $network_extralibs
5914     check_func inet_aton $network_extralibs
5915
5916     check_type netdb.h "struct addrinfo"
5917     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5918     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5919     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5920     check_type poll.h "struct pollfd"
5921     check_type netinet/sctp.h "struct sctp_event_subscribe"
5922     check_struct "sys/socket.h" "struct msghdr" msg_flags
5923     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5924     check_type netinet/in.h "struct sockaddr_in6"
5925     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5926     check_type "sys/types.h sys/socket.h" socklen_t
5927
5928     # Prefer arpa/inet.h over winsock2
5929     if check_headers arpa/inet.h ; then
5930         check_func closesocket
5931     elif check_headers winsock2.h ; then
5932         check_func_headers winsock2.h closesocket -lws2 &&
5933             network_extralibs="-lws2" ||
5934         { check_func_headers winsock2.h closesocket -lws2_32 &&
5935             network_extralibs="-lws2_32"; } || disable winsock2_h network
5936         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5937
5938         check_type ws2tcpip.h socklen_t
5939         check_type ws2tcpip.h "struct addrinfo"
5940         check_type ws2tcpip.h "struct group_source_req"
5941         check_type ws2tcpip.h "struct ip_mreq_source"
5942         check_type ws2tcpip.h "struct ipv6_mreq"
5943         check_type winsock2.h "struct pollfd"
5944         check_struct winsock2.h "struct sockaddr" sa_len
5945         check_type ws2tcpip.h "struct sockaddr_in6"
5946         check_type ws2tcpip.h "struct sockaddr_storage"
5947     else
5948         disable network
5949     fi
5950 fi
5951
5952 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5953 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5954 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5955 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5956 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5957 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5958 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5959
5960 case "$custom_allocator" in
5961     jemalloc)
5962         # jemalloc by default does not use a prefix
5963         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5964     ;;
5965     tcmalloc)
5966         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5967         malloc_prefix=tc_
5968     ;;
5969 esac
5970
5971 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5972 check_func  ${malloc_prefix}memalign            && enable memalign
5973 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5974
5975 check_func  access
5976 check_func_headers stdlib.h arc4random
5977 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5978 check_func  fcntl
5979 check_func  fork
5980 check_func  gethrtime
5981 check_func  getopt
5982 check_func  getrusage
5983 check_func  gettimeofday
5984 check_func  isatty
5985 check_func  mkstemp
5986 check_func  mmap
5987 check_func  mprotect
5988 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5989 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
5990 check_func  sched_getaffinity
5991 check_func  setrlimit
5992 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5993 check_func  strerror_r
5994 check_func  sysconf
5995 check_func  sysctl
5996 check_func  usleep
5997
5998 check_func_headers conio.h kbhit
5999 check_func_headers io.h setmode
6000 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6001 check_func_headers mach/mach_time.h mach_absolute_time
6002 check_func_headers stdlib.h getenv
6003 check_func_headers sys/stat.h lstat
6004
6005 check_func_headers windows.h GetProcessAffinityMask
6006 check_func_headers windows.h GetProcessTimes
6007 check_func_headers windows.h GetSystemTimeAsFileTime
6008 check_func_headers windows.h LoadLibrary
6009 check_func_headers windows.h MapViewOfFile
6010 check_func_headers windows.h PeekNamedPipe
6011 check_func_headers windows.h SetConsoleTextAttribute
6012 check_func_headers windows.h SetConsoleCtrlHandler
6013 check_func_headers windows.h Sleep
6014 check_func_headers windows.h VirtualAlloc
6015 check_func_headers glob.h glob
6016 enabled xlib &&
6017     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6018
6019 check_headers direct.h
6020 check_headers dirent.h
6021 check_headers dxgidebug.h
6022 check_headers dxva.h
6023 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6024 check_headers io.h
6025 check_headers linux/perf_event.h
6026 check_headers libcrystalhd/libcrystalhd_if.h
6027 check_headers malloc.h
6028 check_headers net/udplite.h
6029 check_headers poll.h
6030 check_headers sys/param.h
6031 check_headers sys/resource.h
6032 check_headers sys/select.h
6033 check_headers sys/time.h
6034 check_headers sys/un.h
6035 check_headers termios.h
6036 check_headers unistd.h
6037 check_headers valgrind/valgrind.h
6038 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6039 check_headers windows.h
6040 check_headers X11/extensions/XvMClib.h
6041 check_headers asm/types.h
6042
6043 # it seems there are versions of clang in some distros that try to use the
6044 # gcc headers, which explodes for stdatomic
6045 # so we also check that atomics actually work here
6046 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6047
6048 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6049 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6050     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6051 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6052 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6053 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6054
6055 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6056 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6057 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6058
6059 enabled appkit       && check_apple_framework AppKit
6060 enabled audiotoolbox && check_apple_framework AudioToolbox
6061 enabled avfoundation && check_apple_framework AVFoundation
6062 enabled coreimage    && check_apple_framework CoreImage
6063 enabled videotoolbox && check_apple_framework VideoToolbox
6064
6065 check_apple_framework CoreFoundation
6066 check_apple_framework CoreMedia
6067 check_apple_framework CoreVideo
6068
6069 enabled avfoundation && {
6070     disable coregraphics applicationservices
6071     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6072     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6073
6074 enabled videotoolbox && {
6075     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6076     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6077     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6078     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6079     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6080     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6081 }
6082
6083 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6084
6085 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6086 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6087 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6088 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6089 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6090
6091 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6092
6093 if [ -z "$nvccflags" ]; then
6094     nvccflags=$nvccflags_default
6095 fi
6096
6097 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6098     nvccflags="$nvccflags -m64"
6099 else
6100     nvccflags="$nvccflags -m32"
6101 fi
6102
6103 if enabled cuda_nvcc; then
6104     nvccflags="$nvccflags -ptx"
6105 else
6106     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6107     check_nvcc cuda_llvm
6108 fi
6109
6110 if ! disabled ffnvcodec; then
6111     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6112     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6113       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6114       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6115       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6116 fi
6117
6118 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6119
6120 if ! disabled w32threads && ! enabled pthreads; then
6121     check_func_headers "windows.h process.h" _beginthreadex &&
6122         check_type "windows.h" CONDITION_VARIABLE &&
6123         check_type "windows.h" INIT_ONCE &&
6124         enable w32threads || disable w32threads
6125     if ! enabled w32threads && enabled winrt; then
6126         check_func_headers "windows.h" CreateThread &&
6127             enable w32threads || disable w32threads
6128     fi
6129 fi
6130
6131 # check for some common methods of building with pthread support
6132 # do this before the optional library checks as some of them require pthreads
6133 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6134     if check_lib pthreads pthread.h pthread_join   -pthread &&
6135        check_lib pthreads pthread.h pthread_create -pthread; then
6136         add_cflags -pthread
6137     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6138          check_lib pthreads pthread.h pthread_create -pthreads; then
6139         add_cflags -pthreads
6140     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6141          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6142         add_cflags -ldl -pthread
6143     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6144          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6145         :
6146     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6147          check_lib pthreads pthread.h pthread_create -lpthread; then
6148         :
6149     elif check_func pthread_join && check_func pthread_create; then
6150         enable pthreads
6151     fi
6152     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6153
6154     if enabled pthreads; then
6155         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6156         check_func pthread_cancel $pthreads_extralibs
6157     fi
6158 fi
6159
6160 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6161                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6162 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6163 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6164
6165 # On some systems dynamic loading requires no extra linker flags
6166 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6167
6168 check_lib libm math.h sin -lm
6169
6170 atan2f_args=2
6171 copysign_args=2
6172 hypot_args=2
6173 ldexpf_args=2
6174 powf_args=2
6175
6176 for func in $MATH_FUNCS; do
6177     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6178 done
6179
6180 for func in $COMPLEX_FUNCS; do
6181     eval check_complexfunc $func \${${func}_args:-1}
6182 done
6183
6184 # these are off by default, so fail if requested and not available
6185 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6186 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6187 enabled decklink          && { require_headers DeckLinkAPI.h &&
6188                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6189 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6190 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6191 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6192 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6193 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6194 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6195 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6196                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6197                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6198 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6199 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6200 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6201 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6202 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6203 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6204                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6205                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6206 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6207 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6208 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6209 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6210 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6211 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6212 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6213                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6214                                  warn "using libfdk without pkg-config"; } }
6215 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"
6216 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6217 enabled fontconfig        && enable libfontconfig
6218 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6219 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6220 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6221 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6222                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6223 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6224                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6225                                done || die "ERROR: libgsm not found"; }
6226 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6227 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6228 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6229 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6230 # While it may appear that require is being used as a pkg-config
6231 # fallback for libmfx, it is actually being used to detect a different
6232 # installation route altogether.  If libmfx is installed via the Intel
6233 # Media SDK or Intel Media Server Studio, these don't come with
6234 # pkg-config support.  Instead, users should make sure that the build
6235 # can find the libraries and headers through other means.
6236 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6237                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6238 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6239 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6240 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_load ||
6241                                require libmysofa mysofa.h mysofa_load -lmysofa $zlib_extralibs; }
6242 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6243                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6244                                die "ERROR: libnpp not found"; }
6245 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6246 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6247 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6248                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6249                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6250                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6251 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6252 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6253                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6254 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6255 enabled libopus           && {
6256     enabled libopus_decoder && {
6257         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6258     }
6259     enabled libopus_encoder && {
6260         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6261     }
6262 }
6263 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6264 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6265 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6266 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6267 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6268 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6269                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6270 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6271 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6272 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6273 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6274 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6275 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6276 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6277 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6278 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6279 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6280                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6281                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6282 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6283 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6284 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6285 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6286 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6287                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6288
6289 enabled libvpx            && {
6290     enabled libvpx_vp8_decoder && {
6291         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6292             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"
6293     }
6294     enabled libvpx_vp8_encoder && {
6295         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6296             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"
6297     }
6298     enabled libvpx_vp9_decoder && {
6299         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6300             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"
6301     }
6302     enabled libvpx_vp9_encoder && {
6303         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6304             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"
6305     }
6306     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6307         die "libvpx enabled but no supported decoders found"
6308     fi
6309 }
6310
6311 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6312 enabled libwebp           && {
6313     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6314     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6315 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6316                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6317                                  warn "using libx264 without pkg-config"; } } &&
6318                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6319                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6320 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6321                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6322 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6323 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6324 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6325 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6326 enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
6327 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6328                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6329                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6330 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6331 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6332                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6333                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6334                                die "ERROR: mbedTLS not found"; }
6335 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6336 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6337                                { ! enabled cross_compile &&
6338                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6339                                  add_ldflags -L/opt/vc/lib/ &&
6340                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6341                                die "ERROR: mmal not found" &&
6342                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6343 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6344                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6345                                die "ERROR: openal not found"; } &&
6346                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6347                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6348 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6349                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6350                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6351                                die "ERROR: opencl not found"; } &&
6352                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6353                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6354                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6355 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6356                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6357                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6358                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6359                                die "ERROR: opengl not found."
6360                              }
6361 enabled omx               && require_headers OMX_Core.h
6362 enabled omx_rpi           && { check_headers OMX_Core.h ||
6363                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_headers OMX_Core.h ; } ||
6364                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
6365 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6366                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6367                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6368                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6369                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6370                                die "ERROR: openssl not found"; }
6371 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6372 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6373                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6374                                { enabled libdrm ||
6375                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6376                              }
6377 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6378
6379
6380 if enabled gcrypt; then
6381     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6382     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6383         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6384         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6385         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6386             die "ERROR: gcrypt not found"
6387         add_cflags $gcrypt_cflags
6388     else
6389         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6390     fi
6391 fi
6392
6393 if enabled sdl2; then
6394     SDL2_CONFIG="${cross_prefix}sdl2-config"
6395     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6396     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6397         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6398         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6399         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6400         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6401         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6402             enable sdl2
6403     fi
6404     if test $target_os = "mingw32"; then
6405         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6406     fi
6407 fi
6408
6409 if enabled decklink; then
6410     case $target_os in
6411         mingw32*|mingw64*|win32|win64)
6412             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6413             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6414             ;;
6415     esac
6416 fi
6417
6418 enabled securetransport &&
6419     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6420     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6421         disable securetransport
6422
6423 enabled securetransport &&
6424     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6425
6426 enabled schannel &&
6427     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6428     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6429     schannel_extralibs="-lsecur32" ||
6430         disable schannel
6431
6432 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6433 enabled makeinfo \
6434     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6435     && enable makeinfo_html || disable makeinfo_html
6436 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6437 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6438 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6439 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6440
6441 # check V4L2 codecs available in the API
6442 check_headers linux/fb.h
6443 check_headers linux/videodev2.h
6444 test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6445 check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6446 check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6447 check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6448 check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6449 check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6450 check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6451 check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6452 check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6453 check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6454 check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6455
6456 check_headers sys/videoio.h
6457 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6458
6459 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6460 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6461 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6462 # w32api 3.12 had it defined wrong
6463 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6464
6465 check_type "dshow.h" IBaseFilter
6466
6467 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6468 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6469     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6470     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6471     check_headers "dev/ic/bt8xx.h"
6472
6473 if check_struct sys/soundcard.h audio_buf_info bytes; then
6474     enable_sanitized sys/soundcard.h
6475 else
6476     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6477     #include <sys/soundcard.h>
6478     audio_buf_info abc;
6479 EOF
6480 fi
6481
6482 enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6483     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
6484
6485 enabled libjack &&
6486     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6487
6488 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6489
6490 if enabled libcdio; then
6491     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6492     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6493     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6494     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6495     die "ERROR: No usable libcdio/cdparanoia found"
6496 fi
6497
6498 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6499     disable libxcb_shm libxcb_shape libxcb_xfixes
6500
6501 if enabled libxcb; then
6502     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6503     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6504     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6505 fi
6506
6507 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6508
6509 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6510 # the desktop api partition
6511 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6512 #ifdef WINAPI_FAMILY
6513 #include <winapifamily.h>
6514 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6515 #error desktop, not uwp
6516 #else
6517 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6518 #endif
6519 #else
6520 #error no family set
6521 #endif
6522 EOF
6523
6524 enabled vaapi &&
6525     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6526
6527 if enabled vaapi; then
6528     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6529
6530     if enabled xlib; then
6531         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6532     fi
6533
6534     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6535
6536     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6537     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6538     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6539     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6540     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6541     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6542     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6543 fi
6544
6545 if enabled_all opencl libdrm ; then
6546     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6547         enable opencl_drm_beignet
6548     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6549         enable opencl_drm_arm
6550 fi
6551
6552 if enabled_all opencl vaapi ; then
6553     if enabled opencl_drm_beignet ; then
6554         enable opencl_vaapi_beignet
6555     else
6556         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6557             enable opencl_vaapi_intel_media
6558     fi
6559 fi
6560
6561 if enabled_all opencl dxva2 ; then
6562     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6563         enable opencl_dxva2
6564 fi
6565
6566 if enabled_all opencl d3d11va ; then
6567     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6568         enable opencl_d3d11
6569 fi
6570
6571 enabled vdpau &&
6572     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6573
6574 enabled vdpau &&
6575     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6576
6577 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6578
6579 if enabled x86; then
6580     case $target_os in
6581         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6582             ;;
6583         *)
6584             disable ffnvcodec cuvid nvdec nvenc
6585             ;;
6586     esac
6587 elif enabled ppc64 && ! enabled bigendian; then
6588     case $target_os in
6589         linux)
6590             ;;
6591         *)
6592             disable ffnvcodec cuvid nvdec nvenc
6593             ;;
6594     esac
6595 else
6596     disable ffnvcodec cuvid nvdec nvenc
6597 fi
6598
6599 enabled ffnvcodec && enable cuda
6600
6601 enabled nvenc &&
6602     test_cc -I$source_path <<EOF || disable nvenc
6603 #include <ffnvcodec/nvEncodeAPI.h>
6604 NV_ENCODE_API_FUNCTION_LIST flist;
6605 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6606 int main(void) { return 0; }
6607 EOF
6608
6609 enabled amf &&
6610     check_cpp_condition amf "AMF/core/Version.h" \
6611         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
6612
6613 # Funny iconv installations are not unusual, so check it after all flags have been set
6614 if enabled libc_iconv; then
6615     check_func_headers iconv.h iconv
6616 elif enabled iconv; then
6617     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6618 fi
6619
6620 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6621
6622 # add some useful compiler flags if supported
6623 check_cflags -Wdeclaration-after-statement
6624 check_cflags -Wall
6625 check_cflags -Wdisabled-optimization
6626 check_cflags -Wpointer-arith
6627 check_cflags -Wredundant-decls
6628 check_cflags -Wwrite-strings
6629 check_cflags -Wtype-limits
6630 check_cflags -Wundef
6631 check_cflags -Wmissing-prototypes
6632 check_cflags -Wno-pointer-to-int-cast
6633 check_cflags -Wstrict-prototypes
6634 check_cflags -Wempty-body
6635
6636 if enabled extra_warnings; then
6637     check_cflags -Wcast-qual
6638     check_cflags -Wextra
6639     check_cflags -Wpedantic
6640 fi
6641
6642 check_disable_warning(){
6643     warning_flag=-W${1#-Wno-}
6644     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6645 }
6646
6647 test_cflags -Werror=unused-command-line-argument &&
6648     append unknown_warning_flags "-Werror=unused-command-line-argument"
6649 test_cflags -Werror=unknown-warning-option &&
6650     append unknown_warning_flags "-Werror=unknown-warning-option"
6651
6652 check_disable_warning -Wno-parentheses
6653 check_disable_warning -Wno-switch
6654 check_disable_warning -Wno-format-zero-length
6655 check_disable_warning -Wno-pointer-sign
6656 check_disable_warning -Wno-unused-const-variable
6657 check_disable_warning -Wno-bool-operation
6658 check_disable_warning -Wno-char-subscripts
6659
6660 check_disable_warning_headers(){
6661     warning_flag=-W${1#-Wno-}
6662     test_cflags $warning_flag && add_cflags_headers $1
6663 }
6664
6665 check_disable_warning_headers -Wno-deprecated-declarations
6666 check_disable_warning_headers -Wno-unused-variable
6667
6668 test_cc <<EOF && enable blocks_extension
6669 void (^block)(void);
6670 EOF
6671
6672 # add some linker flags
6673 check_ldflags -Wl,--warn-common
6674 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6675 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6676 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6677
6678 # add some strip flags
6679 check_stripflags -x
6680
6681 enabled neon_clobber_test &&
6682     check_ldflags -Wl,--wrap,avcodec_open2              \
6683                   -Wl,--wrap,avcodec_decode_audio4      \
6684                   -Wl,--wrap,avcodec_decode_video2      \
6685                   -Wl,--wrap,avcodec_decode_subtitle2   \
6686                   -Wl,--wrap,avcodec_encode_audio2      \
6687                   -Wl,--wrap,avcodec_encode_video2      \
6688                   -Wl,--wrap,avcodec_encode_subtitle    \
6689                   -Wl,--wrap,avcodec_send_packet        \
6690                   -Wl,--wrap,avcodec_receive_packet     \
6691                   -Wl,--wrap,avcodec_send_frame         \
6692                   -Wl,--wrap,avcodec_receive_frame      \
6693                   -Wl,--wrap,swr_convert                \
6694                   -Wl,--wrap,avresample_convert ||
6695     disable neon_clobber_test
6696
6697 enabled xmm_clobber_test &&
6698     check_ldflags -Wl,--wrap,avcodec_open2              \
6699                   -Wl,--wrap,avcodec_decode_audio4      \
6700                   -Wl,--wrap,avcodec_decode_video2      \
6701                   -Wl,--wrap,avcodec_decode_subtitle2   \
6702                   -Wl,--wrap,avcodec_encode_audio2      \
6703                   -Wl,--wrap,avcodec_encode_video2      \
6704                   -Wl,--wrap,avcodec_encode_subtitle    \
6705                   -Wl,--wrap,avcodec_send_packet        \
6706                   -Wl,--wrap,avcodec_receive_packet     \
6707                   -Wl,--wrap,avcodec_send_frame         \
6708                   -Wl,--wrap,avcodec_receive_frame      \
6709                   -Wl,--wrap,swr_convert                \
6710                   -Wl,--wrap,avresample_convert         \
6711                   -Wl,--wrap,sws_scale ||
6712     disable xmm_clobber_test
6713
6714 check_ld "cc" proper_dce <<EOF
6715 extern const int array[512];
6716 static inline int func(void) { return array[0]; }
6717 int main(void) { return 0; }
6718 EOF
6719
6720 if enabled proper_dce; then
6721     echo "X { local: *; };" > $TMPV
6722     if test_ldflags -Wl,${version_script},$TMPV; then
6723         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6724         quotes='""'
6725         test_cc <<EOF && enable symver_asm_label
6726 void ff_foo(void) __asm__ ("av_foo@VERSION");
6727 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6728 EOF
6729         test_cc <<EOF && enable symver_gnu_asm
6730 __asm__(".symver ff_foo,av_foo@VERSION");
6731 void ff_foo(void) {}
6732 EOF
6733     fi
6734 fi
6735
6736 if [ -z "$optflags" ]; then
6737     if enabled small; then
6738         optflags=$cflags_size
6739     elif enabled optimizations; then
6740         optflags=$cflags_speed
6741     else
6742         optflags=$cflags_noopt
6743     fi
6744 fi
6745
6746 check_optflags(){
6747     check_cflags "$@"
6748     enabled lto && check_ldflags "$@"
6749 }
6750
6751 check_optflags $optflags
6752 check_optflags -fno-math-errno
6753 check_optflags -fno-signed-zeros
6754
6755 if enabled lto; then
6756     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6757     check_cflags  -flto
6758     check_ldflags -flto $cpuflags
6759     disable inline_asm_direct_symbol_refs
6760 fi
6761
6762 enabled ftrapv && check_cflags -ftrapv
6763
6764 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6765 int x;
6766 EOF
6767
6768
6769 if enabled icc; then
6770     # Just warnings, no remarks
6771     check_cflags -w1
6772     # -wd: Disable following warnings
6773     # 144, 167, 556: -Wno-pointer-sign
6774     # 188: enumerated type mixed with another type
6775     # 1292: attribute "foo" ignored
6776     # 1419: external declaration in primary source file
6777     # 10006: ignoring unknown option -fno-signed-zeros
6778     # 10148: ignoring unknown option -Wno-parentheses
6779     # 10156: ignoring option '-W'; no argument required
6780     # 13200: No EMMS instruction before call to function
6781     # 13203: No EMMS instruction before return from function
6782     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6783     # 11030: Warning unknown option --as-needed
6784     # 10156: ignoring option '-export'; no argument required
6785     check_ldflags -wd10156,11030
6786     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6787     enable ebp_available
6788     # The test above does not test linking
6789     enabled lto && disable symver_asm_label
6790     if enabled x86_32; then
6791         icc_version=$($cc -dumpversion)
6792         test ${icc_version%%.*} -ge 11 &&
6793             check_cflags -falign-stack=maintain-16-byte ||
6794             disable aligned_stack
6795     fi
6796 elif enabled gcc; then
6797     check_optflags -fno-tree-vectorize
6798     check_cflags -Werror=format-security
6799     check_cflags -Werror=implicit-function-declaration
6800     check_cflags -Werror=missing-prototypes
6801     check_cflags -Werror=return-type
6802     check_cflags -Werror=vla
6803     check_cflags -Wformat
6804     check_cflags -fdiagnostics-color=auto
6805     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6806     if enabled x86_32; then
6807         case $target_os in
6808         *bsd*)
6809             # BSDs don't guarantee a 16 byte aligned stack, but we can
6810             # request GCC to try to maintain 16 byte alignment throughout
6811             # function calls. Library entry points that might call assembly
6812             # functions align the stack. (The parameter means 2^4 bytes.)
6813             check_cflags -mpreferred-stack-boundary=4
6814             ;;
6815         esac
6816     fi
6817 elif enabled llvm_gcc; then
6818     check_cflags -mllvm -stack-alignment=16
6819 elif enabled clang; then
6820     if enabled x86_32; then
6821         # Clang doesn't support maintaining alignment without assuming the
6822         # same alignment in every function. If 16 byte alignment would be
6823         # enabled, one would also have to either add attribute_align_arg on
6824         # every single entry point into the libraries or enable -mstackrealign
6825         # (doing stack realignment in every single function).
6826         case $target_os in
6827         mingw32|win32|*bsd*)
6828             disable aligned_stack
6829             ;;
6830         *)
6831             check_cflags -mllvm -stack-alignment=16
6832             check_cflags -mstack-alignment=16
6833             ;;
6834         esac
6835     else
6836         check_cflags -mllvm -stack-alignment=16
6837         check_cflags -mstack-alignment=16
6838     fi
6839     check_cflags -Qunused-arguments
6840     check_cflags -Werror=implicit-function-declaration
6841     check_cflags -Werror=missing-prototypes
6842     check_cflags -Werror=return-type
6843 elif enabled cparser; then
6844     add_cflags -Wno-missing-variable-declarations
6845     add_cflags -Wno-empty-statement
6846 elif enabled armcc; then
6847     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6848     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6849     # 2523: use of inline assembly is deprecated
6850     add_cflags -W${armcc_opt},--diag_suppress=2523
6851     add_cflags -W${armcc_opt},--diag_suppress=1207
6852     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6853     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6854     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6855     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6856 elif enabled pathscale; then
6857     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6858     disable inline_asm
6859 elif enabled_any msvc icl; then
6860     enabled x86_32 && disable aligned_stack
6861     enabled_all x86_32 debug && add_cflags -Oy-
6862     enabled debug && add_ldflags -debug
6863     enable pragma_deprecated
6864     if enabled icl; then
6865         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6866         # (correctly) on icl 13.x.
6867         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6868             add_cflags -Qansi-alias
6869         # Some inline asm is not compilable in debug
6870         if enabled debug; then
6871             disable ebp_available
6872             disable ebx_available
6873         fi
6874     fi
6875     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6876     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6877     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6878     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6879     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6880     # MSVC 2013 and newer can handle it fine.
6881     # If this declspec fails, force including stdlib.h before the restrict redefinition
6882     # happens in config.h.
6883     if [ $restrict_keyword != restrict ]; then
6884         test_cc <<EOF || add_cflags -FIstdlib.h
6885 __declspec($restrict_keyword) void *foo(int);
6886 EOF
6887     fi
6888     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6889     # Issue has been fixed in MSVC v19.00.24218.
6890     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6891         check_cflags -d2SSAOptimizer-
6892     # enable utf-8 source processing on VS2015 U2 and newer
6893     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6894         add_cflags -utf-8
6895 fi
6896
6897 for pfx in "" host_; do
6898     varname=${pfx%_}cc_type
6899     eval "type=\$$varname"
6900     if [ "$type" = "msvc" ]; then
6901         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6902 static inline int foo(int a) { return a; }
6903 EOF
6904     fi
6905 done
6906
6907 case $as_type in
6908     clang)
6909         add_asflags -Qunused-arguments
6910     ;;
6911 esac
6912
6913 case $ld_type in
6914     clang)
6915         check_ldflags -Qunused-arguments
6916     ;;
6917 esac
6918
6919 enable frame_thread_encoder
6920
6921 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6922
6923 check_deps $CONFIG_LIST       \
6924            $CONFIG_EXTRA      \
6925            $HAVE_LIST         \
6926            $ALL_COMPONENTS    \
6927
6928 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"
6929 enabled avresample && warn "Building with deprecated library libavresample"
6930
6931 case $target_os in
6932 haiku)
6933     disable memalign
6934     disable posix_memalign
6935     ;;
6936 *-dos|freedos|opendos)
6937     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6938         disable memalign
6939     fi
6940     ;;
6941 esac
6942
6943 flatten_extralibs(){
6944     nested_entries=
6945     list_name=$1
6946     eval list=\$${1}
6947     for entry in $list; do
6948         entry_copy=$entry
6949         resolve entry_copy
6950         flat_entries=
6951         for e in $entry_copy; do
6952             case $e in
6953                 *_extralibs) nested_entries="$nested_entries$e ";;
6954                           *) flat_entries="$flat_entries$e ";;
6955             esac
6956         done
6957         eval $entry="\$flat_entries"
6958     done
6959     append $list_name "$nested_entries"
6960
6961     resolve nested_entries
6962     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6963         flatten_extralibs $list_name
6964     fi
6965 }
6966
6967 flatten_extralibs_wrapper(){
6968     list_name=$1
6969     flatten_extralibs $list_name
6970     unique $list_name
6971     resolve $list_name
6972     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6973     eval printf \''%s'\' \""\$$list_name"\"
6974 }
6975
6976 for linkunit in $LIBRARY_LIST; do
6977     unset current_extralibs
6978     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
6979     for comp in ${components}; do
6980         enabled $comp || continue
6981         comp_extralibs="${comp}_extralibs"
6982         append current_extralibs $comp_extralibs
6983     done
6984     eval prepend ${linkunit}_extralibs $current_extralibs
6985 done
6986
6987 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
6988     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
6989 done
6990
6991 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6992
6993 for thread in $THREADS_LIST; do
6994     if enabled $thread; then
6995         test -n "$thread_type" &&
6996             die "ERROR: Only one thread type must be selected." ||
6997             thread_type="$thread"
6998     fi
6999 done
7000
7001 if disabled stdatomic; then
7002     if enabled atomics_gcc; then
7003         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7004     elif enabled atomics_win32; then
7005         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7006     elif enabled atomics_suncc; then
7007         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7008     elif enabled pthreads; then
7009         add_compat atomics/pthread/stdatomic.o
7010         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7011     else
7012         enabled threads && die "Threading is enabled, but no atomics are available"
7013         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7014     fi
7015 fi
7016
7017 # Check if requested libraries were found.
7018 for lib in $AUTODETECT_LIBS; do
7019     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7020 done
7021
7022 enabled zlib && add_cppflags -DZLIB_CONST
7023
7024 # conditional library dependencies, in any order
7025 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7026 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7027 enabled afir_filter         && prepend avfilter_deps "avcodec"
7028 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7029 enabled aresample_filter    && prepend avfilter_deps "swresample"
7030 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7031 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7032 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7033 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7034 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7035 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7036 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7037 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7038 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7039 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7040 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7041 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7042 enabled pan_filter          && prepend avfilter_deps "swresample"
7043 enabled pp_filter           && prepend avfilter_deps "postproc"
7044 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7045 enabled resample_filter && prepend avfilter_deps "avresample"
7046 enabled sab_filter          && prepend avfilter_deps "swscale"
7047 enabled scale_filter    && prepend avfilter_deps "swscale"
7048 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7049 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7050 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7051 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7052 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7053 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7054 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7055 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7056 enabled spp_filter          && prepend avfilter_deps "avcodec"
7057 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7058 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7059 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7060 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7061
7062 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7063
7064 #FIXME
7065 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7066     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7067
7068 enabled opus_decoder    && prepend avcodec_deps "swresample"
7069
7070 # reorder the items at var $1 to align with the items order at var $2 .
7071 # die if an item at $1 is not at $2 .
7072 reorder_by(){
7073     eval rb_in=\$$1
7074     eval rb_ordered=\$$2
7075
7076     for rb in $rb_in; do
7077         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7078     done
7079
7080     rb_out=
7081     for rb in $rb_ordered; do
7082         is_in $rb $rb_in && rb_out="$rb_out$rb "
7083     done
7084     eval $1=\$rb_out
7085 }
7086
7087 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7088 # within a set of N items, N expansions are enough to expose a cycle.
7089 expand_deps(){
7090     unique ${1}_deps  # required for the early break test.
7091     for dummy in $LIBRARY_LIST; do  # N iteratios
7092         eval deps=\$${1}_deps
7093         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7094         unique ${1}_deps
7095         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7096     done
7097
7098     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7099     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7100 }
7101
7102 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7103 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7104
7105 map 'expand_deps $v' $LIBRARY_LIST
7106
7107 if test "$quiet" != "yes"; then
7108
7109 echo "install prefix            $prefix"
7110 echo "source path               $source_path"
7111 echo "C compiler                $cc"
7112 echo "C library                 $libc_type"
7113 if test "$host_cc" != "$cc"; then
7114     echo "host C compiler           $host_cc"
7115     echo "host C library            $host_libc_type"
7116 fi
7117 echo "ARCH                      $arch ($cpu)"
7118 if test "$build_suffix" != ""; then
7119     echo "build suffix              $build_suffix"
7120 fi
7121 if test "$progs_suffix" != ""; then
7122     echo "progs suffix              $progs_suffix"
7123 fi
7124 if test "$extra_version" != ""; then
7125     echo "version string suffix     $extra_version"
7126 fi
7127 echo "big-endian                ${bigendian-no}"
7128 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7129 if enabled x86; then
7130     echo "standalone assembly       ${x86asm-no}"
7131     echo "x86 assembler             ${x86asmexe}"
7132     echo "MMX enabled               ${mmx-no}"
7133     echo "MMXEXT enabled            ${mmxext-no}"
7134     echo "3DNow! enabled            ${amd3dnow-no}"
7135     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7136     echo "SSE enabled               ${sse-no}"
7137     echo "SSSE3 enabled             ${ssse3-no}"
7138     echo "AESNI enabled             ${aesni-no}"
7139     echo "AVX enabled               ${avx-no}"
7140     echo "AVX2 enabled              ${avx2-no}"
7141     echo "AVX-512 enabled           ${avx512-no}"
7142     echo "XOP enabled               ${xop-no}"
7143     echo "FMA3 enabled              ${fma3-no}"
7144     echo "FMA4 enabled              ${fma4-no}"
7145     echo "i686 features enabled     ${i686-no}"
7146     echo "CMOV is fast              ${fast_cmov-no}"
7147     echo "EBX available             ${ebx_available-no}"
7148     echo "EBP available             ${ebp_available-no}"
7149 fi
7150 if enabled aarch64; then
7151     echo "NEON enabled              ${neon-no}"
7152     echo "VFP enabled               ${vfp-no}"
7153 fi
7154 if enabled arm; then
7155     echo "ARMv5TE enabled           ${armv5te-no}"
7156     echo "ARMv6 enabled             ${armv6-no}"
7157     echo "ARMv6T2 enabled           ${armv6t2-no}"
7158     echo "VFP enabled               ${vfp-no}"
7159     echo "NEON enabled              ${neon-no}"
7160     echo "THUMB enabled             ${thumb-no}"
7161 fi
7162 if enabled mips; then
7163     echo "MIPS FPU enabled          ${mipsfpu-no}"
7164     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7165     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7166     echo "MIPS MSA enabled          ${msa-no}"
7167     echo "MIPS MSA2 enabled         ${msa2-no}"
7168     echo "LOONGSON MMI enabled      ${mmi-no}"
7169 fi
7170 if enabled ppc; then
7171     echo "AltiVec enabled           ${altivec-no}"
7172     echo "VSX enabled               ${vsx-no}"
7173     echo "POWER8 enabled            ${power8-no}"
7174     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7175     echo "dcbzl available           ${dcbzl-no}"
7176 fi
7177 echo "debug symbols             ${debug-no}"
7178 echo "strip symbols             ${stripping-no}"
7179 echo "optimize for size         ${small-no}"
7180 echo "optimizations             ${optimizations-no}"
7181 echo "static                    ${static-no}"
7182 echo "shared                    ${shared-no}"
7183 echo "postprocessing support    ${postproc-no}"
7184 echo "network support           ${network-no}"
7185 echo "threading support         ${thread_type-no}"
7186 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7187 echo "texi2html enabled         ${texi2html-no}"
7188 echo "perl enabled              ${perl-no}"
7189 echo "pod2man enabled           ${pod2man-no}"
7190 echo "makeinfo enabled          ${makeinfo-no}"
7191 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7192 test -n "$random_seed" &&
7193     echo "random seed               ${random_seed}"
7194 echo
7195
7196 echo "External libraries:"
7197 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7198 echo
7199
7200 echo "External libraries providing hardware acceleration:"
7201 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7202 echo
7203
7204 echo "Libraries:"
7205 print_enabled '' $LIBRARY_LIST | print_in_columns
7206 echo
7207
7208 echo "Programs:"
7209 print_enabled '' $PROGRAM_LIST | print_in_columns
7210 echo
7211
7212 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7213     echo "Enabled ${type}s:"
7214     eval list=\$$(toupper $type)_LIST
7215     print_enabled '_*' $list | print_in_columns
7216     echo
7217 done
7218
7219 if test -n "$ignore_tests"; then
7220     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7221     echo "Ignored FATE tests:"
7222     echo $ignore_tests | print_in_columns
7223     echo
7224 fi
7225
7226 echo "License: $license"
7227
7228 fi # test "$quiet" != "yes"
7229
7230 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7231     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7232         if disabled $cfg; then
7233             varname=${cfg}_disable_reason
7234             eval "warn \"Disabled $cfg because \$$varname\""
7235         fi
7236     done
7237 fi
7238
7239 if test -n "$WARNINGS"; then
7240     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7241     enabled fatal_warnings && exit 1
7242 fi
7243
7244 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7245
7246 esc(){
7247     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7248 }
7249
7250 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7251
7252 enabled stripping || strip="echo skipping strip"
7253 enabled stripping || striptype=""
7254
7255 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7256
7257 cat > ffbuild/config.mak <<EOF
7258 # Automatically generated by configure - do not modify!
7259 ifndef FFMPEG_CONFIG_MAK
7260 FFMPEG_CONFIG_MAK=1
7261 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7262 prefix=$prefix
7263 LIBDIR=\$(DESTDIR)$libdir
7264 SHLIBDIR=\$(DESTDIR)$shlibdir
7265 INCDIR=\$(DESTDIR)$incdir
7266 BINDIR=\$(DESTDIR)$bindir
7267 DATADIR=\$(DESTDIR)$datadir
7268 DOCDIR=\$(DESTDIR)$docdir
7269 MANDIR=\$(DESTDIR)$mandir
7270 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7271 INSTALL_NAME_DIR=$install_name_dir
7272 SRC_PATH=$source_path
7273 SRC_LINK=$source_link
7274 ifndef MAIN_MAKEFILE
7275 SRC_PATH:=\$(SRC_PATH:.%=..%)
7276 endif
7277 CC_IDENT=$cc_ident
7278 ARCH=$arch
7279 INTRINSICS=$intrinsics
7280 EXTERN_PREFIX=$extern_prefix
7281 CC=$cc
7282 CXX=$cxx
7283 AS=$as
7284 OBJCC=$objcc
7285 LD=$ld
7286 DEPCC=$dep_cc
7287 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7288 DEPAS=$as
7289 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7290 X86ASM=$x86asmexe
7291 DEPX86ASM=$x86asmexe
7292 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7293 AR=$ar
7294 ARFLAGS=$arflags
7295 AR_O=$ar_o
7296 AR_CMD=$ar
7297 NM_CMD=$nm
7298 RANLIB=$ranlib
7299 STRIP=$strip
7300 STRIPTYPE=$striptype
7301 NVCC=$nvcc
7302 CP=cp -p
7303 LN_S=$ln_s
7304 CPPFLAGS=$CPPFLAGS
7305 CFLAGS=$CFLAGS
7306 CXXFLAGS=$CXXFLAGS
7307 OBJCFLAGS=$OBJCFLAGS
7308 ASFLAGS=$ASFLAGS
7309 NVCCFLAGS=$nvccflags
7310 AS_C=$AS_C
7311 AS_O=$AS_O
7312 OBJCC_C=$OBJCC_C
7313 OBJCC_E=$OBJCC_E
7314 OBJCC_O=$OBJCC_O
7315 CC_C=$CC_C
7316 CC_E=$CC_E
7317 CC_O=$CC_O
7318 CXX_C=$CXX_C
7319 CXX_O=$CXX_O
7320 NVCC_C=$NVCC_C
7321 NVCC_O=$NVCC_O
7322 LD_O=$LD_O
7323 X86ASM_O=$X86ASM_O
7324 LD_LIB=$LD_LIB
7325 LD_PATH=$LD_PATH
7326 DLLTOOL=$dlltool
7327 WINDRES=$windres
7328 DEPWINDRES=$dep_cc
7329 DOXYGEN=$doxygen
7330 LDFLAGS=$LDFLAGS
7331 LDEXEFLAGS=$LDEXEFLAGS
7332 LDSOFLAGS=$LDSOFLAGS
7333 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7334 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7335 X86ASMFLAGS=$X86ASMFLAGS
7336 BUILDSUF=$build_suffix
7337 PROGSSUF=$progs_suffix
7338 FULLNAME=$FULLNAME
7339 LIBPREF=$LIBPREF
7340 LIBSUF=$LIBSUF
7341 LIBNAME=$LIBNAME
7342 SLIBPREF=$SLIBPREF
7343 SLIBSUF=$SLIBSUF
7344 EXESUF=$EXESUF
7345 EXTRA_VERSION=$extra_version
7346 CCDEP=$CCDEP
7347 CXXDEP=$CXXDEP
7348 CCDEP_FLAGS=$CCDEP_FLAGS
7349 ASDEP=$ASDEP
7350 ASDEP_FLAGS=$ASDEP_FLAGS
7351 X86ASMDEP=$X86ASMDEP
7352 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7353 CC_DEPFLAGS=$CC_DEPFLAGS
7354 AS_DEPFLAGS=$AS_DEPFLAGS
7355 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7356 HOSTCC=$host_cc
7357 HOSTLD=$host_ld
7358 HOSTCFLAGS=$host_cflags
7359 HOSTCPPFLAGS=$host_cppflags
7360 HOSTEXESUF=$HOSTEXESUF
7361 HOSTLDFLAGS=$host_ldflags
7362 HOSTEXTRALIBS=$host_extralibs
7363 DEPHOSTCC=$host_cc
7364 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7365 HOSTCCDEP=$HOSTCCDEP
7366 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7367 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7368 HOSTCC_C=$HOSTCC_C
7369 HOSTCC_O=$HOSTCC_O
7370 HOSTLD_O=$HOSTLD_O
7371 TARGET_EXEC=$target_exec $target_exec_args
7372 TARGET_PATH=$target_path
7373 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7374 CFLAGS-ffplay=${sdl2_cflags}
7375 CFLAGS_HEADERS=$CFLAGS_HEADERS
7376 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7377 EXTRALIBS=$extralibs
7378 COMPAT_OBJS=$compat_objs
7379 INSTALL=$install
7380 LIBTARGET=${LIBTARGET}
7381 SLIBNAME=${SLIBNAME}
7382 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7383 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7384 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7385 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7386 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7387 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7388 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7389 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7390 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7391 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7392 NOREDZONE_FLAGS=$noredzone_flags
7393 LIBFUZZER_PATH=$libfuzzer_path
7394 IGNORE_TESTS=$ignore_tests
7395 EOF
7396
7397 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7398
7399 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7400     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7401 done
7402
7403 cat > $TMPH <<EOF
7404 /* Automatically generated by configure - do not modify! */
7405 #ifndef FFMPEG_CONFIG_H
7406 #define FFMPEG_CONFIG_H
7407 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7408 #define FFMPEG_LICENSE "$(c_escape $license)"
7409 #define CONFIG_THIS_YEAR 2019
7410 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7411 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7412 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7413 #define av_restrict $restrict_keyword
7414 #define EXTERN_PREFIX "${extern_prefix}"
7415 #define EXTERN_ASM ${extern_prefix}
7416 #define BUILDSUF "$build_suffix"
7417 #define SLIBSUF "$SLIBSUF"
7418 #define HAVE_MMX2 HAVE_MMXEXT
7419 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7420 EOF
7421
7422 test -n "$assert_level" &&
7423     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7424
7425 test -n "$malloc_prefix" &&
7426     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7427
7428 if enabled x86asm; then
7429     append config_files $TMPASM
7430     cat > $TMPASM <<EOF
7431 ; Automatically generated by configure - do not modify!
7432 EOF
7433 fi
7434
7435 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7436
7437
7438 mkdir -p doc
7439 mkdir -p tests
7440 mkdir -p tests/api
7441 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7442
7443 print_config ARCH_   "$config_files" $ARCH_LIST
7444 print_config HAVE_   "$config_files" $HAVE_LIST
7445 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7446                                      $CONFIG_EXTRA      \
7447                                      $ALL_COMPONENTS    \
7448
7449 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7450 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7451
7452 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7453 cp_if_changed $TMPH config.h
7454 touch ffbuild/.config
7455
7456 enabled x86asm && cp_if_changed $TMPASM config.asm
7457
7458 cat > $TMPH <<EOF
7459 /* Generated by ffmpeg configure */
7460 #ifndef AVUTIL_AVCONFIG_H
7461 #define AVUTIL_AVCONFIG_H
7462 EOF
7463
7464 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7465
7466 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7467
7468 cp_if_changed $TMPH libavutil/avconfig.h
7469
7470 # full_filter_name_foo=vf_foo
7471 # full_filter_name_bar=asrc_bar
7472 # ...
7473 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7474
7475 # generate the lists of enabled components
7476 print_enabled_components(){
7477     file=$1
7478     struct_name=$2
7479     name=$3
7480     shift 3
7481     echo "static const $struct_name * const $name[] = {" > $TMPH
7482     for c in $*; do
7483         if enabled $c; then
7484             case $name in
7485                 filter_list)
7486                     eval c=\$full_filter_name_${c%_filter}
7487                 ;;
7488                 indev_list)
7489                     c=${c%_indev}_demuxer
7490                 ;;
7491                 outdev_list)
7492                     c=${c%_outdev}_muxer
7493                 ;;
7494             esac
7495             printf "    &ff_%s,\n" $c >> $TMPH
7496         fi
7497     done
7498     if [ "$name" = "filter_list" ]; then
7499         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7500             printf "    &ff_%s,\n" $c >> $TMPH
7501         done
7502     fi
7503     echo "    NULL };" >> $TMPH
7504     cp_if_changed $TMPH $file
7505 }
7506
7507 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7508 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7509 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7510 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7511 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7512 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7513 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7514 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7515 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7516
7517 # Settings for pkg-config files
7518
7519 cat > $TMPH <<EOF
7520 # Automatically generated by configure - do not modify!
7521 shared=$shared
7522 build_suffix=$build_suffix
7523 prefix=$prefix
7524 libdir=$libdir
7525 incdir=$incdir
7526 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7527 source_path=${source_path}
7528 LIBPREF=${LIBPREF}
7529 LIBSUF=${LIBSUF}
7530 extralibs_avutil="$avutil_extralibs"
7531 extralibs_avcodec="$avcodec_extralibs"
7532 extralibs_avformat="$avformat_extralibs"
7533 extralibs_avdevice="$avdevice_extralibs"
7534 extralibs_avfilter="$avfilter_extralibs"
7535 extralibs_avresample="$avresample_extralibs"
7536 extralibs_postproc="$postproc_extralibs"
7537 extralibs_swscale="$swscale_extralibs"
7538 extralibs_swresample="$swresample_extralibs"
7539 EOF
7540
7541 for lib in $LIBRARY_LIST; do
7542     lib_deps="$(eval echo \$${lib}_deps)"
7543     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7544 done
7545
7546 cp_if_changed $TMPH ffbuild/config.sh