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 imm5_decoder_select="h264_decoder hevc_decoder"
2727 indeo3_decoder_select="hpeldsp"
2728 indeo4_decoder_select="ividsp"
2729 indeo5_decoder_select="ividsp"
2730 interplay_video_decoder_select="hpeldsp"
2731 jpegls_decoder_select="mjpeg_decoder"
2732 jv_decoder_select="blockdsp"
2733 lagarith_decoder_select="llviddsp"
2734 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2735 lscr_decoder_deps="zlib"
2736 magicyuv_decoder_select="llviddsp"
2737 magicyuv_encoder_select="llvidencdsp"
2738 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2739 metasound_decoder_select="lsp mdct sinewin"
2740 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2741 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2742 mjpeg_encoder_select="jpegtables mpegvideoenc"
2743 mjpegb_decoder_select="mjpeg_decoder"
2744 mlp_decoder_select="mlp_parser"
2745 mlp_encoder_select="lpc audio_frame_queue"
2746 motionpixels_decoder_select="bswapdsp"
2747 mp1_decoder_select="mpegaudio"
2748 mp1float_decoder_select="mpegaudio"
2749 mp2_decoder_select="mpegaudio"
2750 mp2float_decoder_select="mpegaudio"
2751 mp3_decoder_select="mpegaudio"
2752 mp3adu_decoder_select="mpegaudio"
2753 mp3adufloat_decoder_select="mpegaudio"
2754 mp3float_decoder_select="mpegaudio"
2755 mp3on4_decoder_select="mpegaudio"
2756 mp3on4float_decoder_select="mpegaudio"
2757 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2758 mpc8_decoder_select="mpegaudiodsp"
2759 mpegvideo_decoder_select="mpegvideo"
2760 mpeg1video_decoder_select="mpegvideo"
2761 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2762 mpeg2video_decoder_select="mpegvideo"
2763 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2764 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2765 mpeg4_encoder_select="h263_encoder"
2766 msa1_decoder_select="mss34dsp"
2767 mscc_decoder_deps="zlib"
2768 msmpeg4v1_decoder_select="h263_decoder"
2769 msmpeg4v2_decoder_select="h263_decoder"
2770 msmpeg4v2_encoder_select="h263_encoder"
2771 msmpeg4v3_decoder_select="h263_decoder"
2772 msmpeg4v3_encoder_select="h263_encoder"
2773 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2774 mts2_decoder_select="mss34dsp"
2775 mwsc_decoder_deps="zlib"
2776 mxpeg_decoder_select="mjpeg_decoder"
2777 nellymoser_decoder_select="mdct sinewin"
2778 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2779 nuv_decoder_select="idctdsp lzo"
2780 on2avc_decoder_select="mdct"
2781 opus_decoder_deps="swresample"
2782 opus_decoder_select="mdct15"
2783 opus_encoder_select="audio_frame_queue mdct15"
2784 png_decoder_deps="zlib"
2785 png_encoder_deps="zlib"
2786 png_encoder_select="llvidencdsp"
2787 prores_decoder_select="blockdsp idctdsp"
2788 prores_encoder_select="fdctdsp"
2789 qcelp_decoder_select="lsp"
2790 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2791 ra_144_decoder_select="audiodsp"
2792 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2793 ralf_decoder_select="golomb"
2794 rasc_decoder_deps="zlib"
2795 rawvideo_decoder_select="bswapdsp"
2796 rscc_decoder_deps="zlib"
2797 rtjpeg_decoder_select="me_cmp"
2798 rv10_decoder_select="h263_decoder"
2799 rv10_encoder_select="h263_encoder"
2800 rv20_decoder_select="h263_decoder"
2801 rv20_encoder_select="h263_encoder"
2802 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2803 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2804 screenpresso_decoder_deps="zlib"
2805 shorten_decoder_select="bswapdsp"
2806 sipr_decoder_select="lsp"
2807 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2808 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2809 sonic_decoder_select="golomb rangecoder"
2810 sonic_encoder_select="golomb rangecoder"
2811 sonic_ls_encoder_select="golomb rangecoder"
2812 sp5x_decoder_select="mjpeg_decoder"
2813 speedhq_decoder_select="mpegvideo"
2814 srgc_decoder_deps="zlib"
2815 svq1_decoder_select="hpeldsp"
2816 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2817 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2818 svq3_decoder_suggest="zlib"
2819 tak_decoder_select="audiodsp"
2820 tdsc_decoder_deps="zlib"
2821 tdsc_decoder_select="mjpeg_decoder"
2822 theora_decoder_select="vp3_decoder"
2823 thp_decoder_select="mjpeg_decoder"
2824 tiff_decoder_suggest="zlib lzma"
2825 tiff_encoder_suggest="zlib"
2826 truehd_decoder_select="mlp_parser"
2827 truehd_encoder_select="lpc audio_frame_queue"
2828 truemotion2_decoder_select="bswapdsp"
2829 truespeech_decoder_select="bswapdsp"
2830 tscc_decoder_deps="zlib"
2831 twinvq_decoder_select="mdct lsp sinewin"
2832 txd_decoder_select="texturedsp"
2833 utvideo_decoder_select="bswapdsp llviddsp"
2834 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2835 vble_decoder_select="llviddsp"
2836 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2837 vc1image_decoder_select="vc1_decoder"
2838 vorbis_decoder_select="mdct"
2839 vorbis_encoder_select="audio_frame_queue mdct"
2840 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2841 vp4_decoder_select="vp3_decoder"
2842 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2843 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2844 vp6a_decoder_select="vp6_decoder"
2845 vp6f_decoder_select="vp6_decoder"
2846 vp7_decoder_select="h264pred videodsp vp8dsp"
2847 vp8_decoder_select="h264pred videodsp vp8dsp"
2848 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2849 wcmv_decoder_deps="zlib"
2850 webp_decoder_select="vp8_decoder exif"
2851 wmalossless_decoder_select="llauddsp"
2852 wmapro_decoder_select="mdct sinewin wma_freqs"
2853 wmav1_decoder_select="mdct sinewin wma_freqs"
2854 wmav1_encoder_select="mdct sinewin wma_freqs"
2855 wmav2_decoder_select="mdct sinewin wma_freqs"
2856 wmav2_encoder_select="mdct sinewin wma_freqs"
2857 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2858 wmv1_decoder_select="h263_decoder"
2859 wmv1_encoder_select="h263_encoder"
2860 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2861 wmv2_encoder_select="h263_encoder wmv2dsp"
2862 wmv3_decoder_select="vc1_decoder"
2863 wmv3image_decoder_select="wmv3_decoder"
2864 xma1_decoder_select="wmapro_decoder"
2865 xma2_decoder_select="wmapro_decoder"
2866 zerocodec_decoder_deps="zlib"
2867 zlib_decoder_deps="zlib"
2868 zlib_encoder_deps="zlib"
2869 zmbv_decoder_deps="zlib"
2870 zmbv_encoder_deps="zlib"
2871
2872 # hardware accelerators
2873 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2874 cuda_deps="ffnvcodec"
2875 cuvid_deps="ffnvcodec"
2876 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2877 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2878 ffnvcodec_deps_any="libdl LoadLibrary"
2879 nvdec_deps="ffnvcodec"
2880 vaapi_x11_deps="xlib"
2881 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2882 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2883 xvmc_deps="X11_extensions_XvMClib_h"
2884
2885 h263_vaapi_hwaccel_deps="vaapi"
2886 h263_vaapi_hwaccel_select="h263_decoder"
2887 h263_videotoolbox_hwaccel_deps="videotoolbox"
2888 h263_videotoolbox_hwaccel_select="h263_decoder"
2889 h264_d3d11va_hwaccel_deps="d3d11va"
2890 h264_d3d11va_hwaccel_select="h264_decoder"
2891 h264_d3d11va2_hwaccel_deps="d3d11va"
2892 h264_d3d11va2_hwaccel_select="h264_decoder"
2893 h264_dxva2_hwaccel_deps="dxva2"
2894 h264_dxva2_hwaccel_select="h264_decoder"
2895 h264_nvdec_hwaccel_deps="nvdec"
2896 h264_nvdec_hwaccel_select="h264_decoder"
2897 h264_vaapi_hwaccel_deps="vaapi"
2898 h264_vaapi_hwaccel_select="h264_decoder"
2899 h264_vdpau_hwaccel_deps="vdpau"
2900 h264_vdpau_hwaccel_select="h264_decoder"
2901 h264_videotoolbox_hwaccel_deps="videotoolbox"
2902 h264_videotoolbox_hwaccel_select="h264_decoder"
2903 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2904 hevc_d3d11va_hwaccel_select="hevc_decoder"
2905 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2906 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2907 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2908 hevc_dxva2_hwaccel_select="hevc_decoder"
2909 hevc_nvdec_hwaccel_deps="nvdec"
2910 hevc_nvdec_hwaccel_select="hevc_decoder"
2911 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2912 hevc_vaapi_hwaccel_select="hevc_decoder"
2913 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2914 hevc_vdpau_hwaccel_select="hevc_decoder"
2915 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2916 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2917 mjpeg_nvdec_hwaccel_deps="nvdec"
2918 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2919 mjpeg_vaapi_hwaccel_deps="vaapi"
2920 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2921 mpeg_xvmc_hwaccel_deps="xvmc"
2922 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2923 mpeg1_nvdec_hwaccel_deps="nvdec"
2924 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2925 mpeg1_vdpau_hwaccel_deps="vdpau"
2926 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2927 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2928 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2929 mpeg1_xvmc_hwaccel_deps="xvmc"
2930 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2931 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2932 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2933 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2934 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2935 mpeg2_dxva2_hwaccel_deps="dxva2"
2936 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2937 mpeg2_nvdec_hwaccel_deps="nvdec"
2938 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2939 mpeg2_vaapi_hwaccel_deps="vaapi"
2940 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2941 mpeg2_vdpau_hwaccel_deps="vdpau"
2942 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2943 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2944 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2945 mpeg2_xvmc_hwaccel_deps="xvmc"
2946 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2947 mpeg4_nvdec_hwaccel_deps="nvdec"
2948 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2949 mpeg4_vaapi_hwaccel_deps="vaapi"
2950 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2951 mpeg4_vdpau_hwaccel_deps="vdpau"
2952 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2953 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2954 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2955 vc1_d3d11va_hwaccel_deps="d3d11va"
2956 vc1_d3d11va_hwaccel_select="vc1_decoder"
2957 vc1_d3d11va2_hwaccel_deps="d3d11va"
2958 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2959 vc1_dxva2_hwaccel_deps="dxva2"
2960 vc1_dxva2_hwaccel_select="vc1_decoder"
2961 vc1_nvdec_hwaccel_deps="nvdec"
2962 vc1_nvdec_hwaccel_select="vc1_decoder"
2963 vc1_vaapi_hwaccel_deps="vaapi"
2964 vc1_vaapi_hwaccel_select="vc1_decoder"
2965 vc1_vdpau_hwaccel_deps="vdpau"
2966 vc1_vdpau_hwaccel_select="vc1_decoder"
2967 vp8_nvdec_hwaccel_deps="nvdec"
2968 vp8_nvdec_hwaccel_select="vp8_decoder"
2969 vp8_vaapi_hwaccel_deps="vaapi"
2970 vp8_vaapi_hwaccel_select="vp8_decoder"
2971 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2972 vp9_d3d11va_hwaccel_select="vp9_decoder"
2973 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2974 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2975 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2976 vp9_dxva2_hwaccel_select="vp9_decoder"
2977 vp9_nvdec_hwaccel_deps="nvdec"
2978 vp9_nvdec_hwaccel_select="vp9_decoder"
2979 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2980 vp9_vaapi_hwaccel_select="vp9_decoder"
2981 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2982 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2983 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2984 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2985 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2986 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2987
2988 # hardware-accelerated codecs
2989 omx_deps="libdl pthreads"
2990 omx_rpi_select="omx"
2991 qsv_deps="libmfx"
2992 qsvdec_select="qsv"
2993 qsvenc_select="qsv"
2994 qsvvpp_select="qsv"
2995 vaapi_encode_deps="vaapi"
2996 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2997
2998 hwupload_cuda_filter_deps="ffnvcodec"
2999 scale_npp_filter_deps="ffnvcodec libnpp"
3000 scale_cuda_filter_deps="ffnvcodec"
3001 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3002 thumbnail_cuda_filter_deps="ffnvcodec"
3003 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3004 transpose_npp_filter_deps="ffnvcodec libnpp"
3005
3006 amf_deps_any="libdl LoadLibrary"
3007 nvenc_deps="ffnvcodec"
3008 nvenc_deps_any="libdl LoadLibrary"
3009 nvenc_encoder_deps="nvenc"
3010
3011 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3012 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3013 h264_amf_encoder_deps="amf"
3014 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3015 h264_cuvid_decoder_deps="cuvid"
3016 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3017 h264_mediacodec_decoder_deps="mediacodec"
3018 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3019 h264_mmal_decoder_deps="mmal"
3020 h264_nvenc_encoder_deps="nvenc"
3021 h264_omx_encoder_deps="omx"
3022 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3023 h264_qsv_encoder_select="qsvenc"
3024 h264_rkmpp_decoder_deps="rkmpp"
3025 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3026 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3027 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3028 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3029 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3030 hevc_amf_encoder_deps="amf"
3031 hevc_cuvid_decoder_deps="cuvid"
3032 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3033 hevc_mediacodec_decoder_deps="mediacodec"
3034 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3035 hevc_nvenc_encoder_deps="nvenc"
3036 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3037 hevc_qsv_encoder_select="hevcparse qsvenc"
3038 hevc_rkmpp_decoder_deps="rkmpp"
3039 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3040 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3041 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3042 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3043 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3044 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3045 mjpeg_cuvid_decoder_deps="cuvid"
3046 mjpeg_qsv_decoder_select="qsvdec"
3047 mjpeg_qsv_encoder_deps="libmfx"
3048 mjpeg_qsv_encoder_select="qsvenc"
3049 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3050 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3051 mpeg1_cuvid_decoder_deps="cuvid"
3052 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3053 mpeg2_crystalhd_decoder_select="crystalhd"
3054 mpeg2_cuvid_decoder_deps="cuvid"
3055 mpeg2_mmal_decoder_deps="mmal"
3056 mpeg2_mediacodec_decoder_deps="mediacodec"
3057 mpeg2_qsv_decoder_select="qsvdec"
3058 mpeg2_qsv_encoder_select="qsvenc"
3059 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3060 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3061 mpeg4_crystalhd_decoder_select="crystalhd"
3062 mpeg4_cuvid_decoder_deps="cuvid"
3063 mpeg4_mediacodec_decoder_deps="mediacodec"
3064 mpeg4_mmal_decoder_deps="mmal"
3065 mpeg4_omx_encoder_deps="omx"
3066 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3067 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3068 msmpeg4_crystalhd_decoder_select="crystalhd"
3069 nvenc_h264_encoder_select="h264_nvenc_encoder"
3070 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3071 vc1_crystalhd_decoder_select="crystalhd"
3072 vc1_cuvid_decoder_deps="cuvid"
3073 vc1_mmal_decoder_deps="mmal"
3074 vc1_qsv_decoder_select="qsvdec"
3075 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3076 vp8_cuvid_decoder_deps="cuvid"
3077 vp8_mediacodec_decoder_deps="mediacodec"
3078 vp8_qsv_decoder_select="qsvdec"
3079 vp8_rkmpp_decoder_deps="rkmpp"
3080 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3081 vp8_vaapi_encoder_select="vaapi_encode"
3082 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3083 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3084 vp9_cuvid_decoder_deps="cuvid"
3085 vp9_mediacodec_decoder_deps="mediacodec"
3086 vp9_qsv_decoder_select="qsvdec"
3087 vp9_rkmpp_decoder_deps="rkmpp"
3088 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3089 vp9_vaapi_encoder_select="vaapi_encode"
3090 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3091 wmv3_crystalhd_decoder_select="crystalhd"
3092
3093 # parsers
3094 aac_parser_select="adts_header"
3095 av1_parser_select="cbs_av1"
3096 h264_parser_select="golomb h264dsp h264parse"
3097 hevc_parser_select="hevcparse"
3098 mpegaudio_parser_select="mpegaudioheader"
3099 mpegvideo_parser_select="mpegvideo"
3100 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3101 vc1_parser_select="vc1dsp"
3102
3103 # bitstream_filters
3104 aac_adtstoasc_bsf_select="adts_header"
3105 av1_frame_split_bsf_select="cbs_av1"
3106 av1_metadata_bsf_select="cbs_av1"
3107 eac3_core_bsf_select="ac3_parser"
3108 filter_units_bsf_select="cbs"
3109 h264_metadata_bsf_deps="const_nan"
3110 h264_metadata_bsf_select="cbs_h264"
3111 h264_redundant_pps_bsf_select="cbs_h264"
3112 hevc_metadata_bsf_select="cbs_h265"
3113 mjpeg2jpeg_bsf_select="jpegtables"
3114 mpeg2_metadata_bsf_select="cbs_mpeg2"
3115 trace_headers_bsf_select="cbs"
3116 vp9_metadata_bsf_select="cbs_vp9"
3117
3118 # external libraries
3119 aac_at_decoder_deps="audiotoolbox"
3120 aac_at_decoder_select="aac_adtstoasc_bsf"
3121 ac3_at_decoder_deps="audiotoolbox"
3122 ac3_at_decoder_select="ac3_parser"
3123 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3124 alac_at_decoder_deps="audiotoolbox"
3125 amr_nb_at_decoder_deps="audiotoolbox"
3126 avisynth_deps_any="libdl LoadLibrary"
3127 avisynth_demuxer_deps="avisynth"
3128 avisynth_demuxer_select="riffdec"
3129 eac3_at_decoder_deps="audiotoolbox"
3130 eac3_at_decoder_select="ac3_parser"
3131 gsm_ms_at_decoder_deps="audiotoolbox"
3132 ilbc_at_decoder_deps="audiotoolbox"
3133 mp1_at_decoder_deps="audiotoolbox"
3134 mp2_at_decoder_deps="audiotoolbox"
3135 mp3_at_decoder_deps="audiotoolbox"
3136 mp1_at_decoder_select="mpegaudioheader"
3137 mp2_at_decoder_select="mpegaudioheader"
3138 mp3_at_decoder_select="mpegaudioheader"
3139 pcm_alaw_at_decoder_deps="audiotoolbox"
3140 pcm_mulaw_at_decoder_deps="audiotoolbox"
3141 qdmc_at_decoder_deps="audiotoolbox"
3142 qdm2_at_decoder_deps="audiotoolbox"
3143 aac_at_encoder_deps="audiotoolbox"
3144 aac_at_encoder_select="audio_frame_queue"
3145 alac_at_encoder_deps="audiotoolbox"
3146 alac_at_encoder_select="audio_frame_queue"
3147 ilbc_at_encoder_deps="audiotoolbox"
3148 ilbc_at_encoder_select="audio_frame_queue"
3149 pcm_alaw_at_encoder_deps="audiotoolbox"
3150 pcm_alaw_at_encoder_select="audio_frame_queue"
3151 pcm_mulaw_at_encoder_deps="audiotoolbox"
3152 pcm_mulaw_at_encoder_select="audio_frame_queue"
3153 chromaprint_muxer_deps="chromaprint"
3154 h264_videotoolbox_encoder_deps="pthreads"
3155 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3156 hevc_videotoolbox_encoder_deps="pthreads"
3157 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3158 libaom_av1_decoder_deps="libaom"
3159 libaom_av1_encoder_deps="libaom"
3160 libaom_av1_encoder_select="extract_extradata_bsf"
3161 libaribb24_decoder_deps="libaribb24"
3162 libcelt_decoder_deps="libcelt"
3163 libcodec2_decoder_deps="libcodec2"
3164 libcodec2_encoder_deps="libcodec2"
3165 libdav1d_decoder_deps="libdav1d"
3166 libdavs2_decoder_deps="libdavs2"
3167 libfdk_aac_decoder_deps="libfdk_aac"
3168 libfdk_aac_encoder_deps="libfdk_aac"
3169 libfdk_aac_encoder_select="audio_frame_queue"
3170 libgme_demuxer_deps="libgme"
3171 libgsm_decoder_deps="libgsm"
3172 libgsm_encoder_deps="libgsm"
3173 libgsm_ms_decoder_deps="libgsm"
3174 libgsm_ms_encoder_deps="libgsm"
3175 libilbc_decoder_deps="libilbc"
3176 libilbc_encoder_deps="libilbc"
3177 libkvazaar_encoder_deps="libkvazaar"
3178 libmodplug_demuxer_deps="libmodplug"
3179 libmp3lame_encoder_deps="libmp3lame"
3180 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3181 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3182 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3183 libopencore_amrnb_encoder_select="audio_frame_queue"
3184 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3185 libopenh264_decoder_deps="libopenh264"
3186 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3187 libopenh264_encoder_deps="libopenh264"
3188 libopenjpeg_decoder_deps="libopenjpeg"
3189 libopenjpeg_encoder_deps="libopenjpeg"
3190 libopenmpt_demuxer_deps="libopenmpt"
3191 libopus_decoder_deps="libopus"
3192 libopus_encoder_deps="libopus"
3193 libopus_encoder_select="audio_frame_queue"
3194 librsvg_decoder_deps="librsvg"
3195 libshine_encoder_deps="libshine"
3196 libshine_encoder_select="audio_frame_queue"
3197 libspeex_decoder_deps="libspeex"
3198 libspeex_encoder_deps="libspeex"
3199 libspeex_encoder_select="audio_frame_queue"
3200 libtheora_encoder_deps="libtheora"
3201 libtwolame_encoder_deps="libtwolame"
3202 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3203 libvorbis_decoder_deps="libvorbis"
3204 libvorbis_encoder_deps="libvorbis libvorbisenc"
3205 libvorbis_encoder_select="audio_frame_queue"
3206 libvpx_vp8_decoder_deps="libvpx"
3207 libvpx_vp8_encoder_deps="libvpx"
3208 libvpx_vp9_decoder_deps="libvpx"
3209 libvpx_vp9_encoder_deps="libvpx"
3210 libwavpack_encoder_deps="libwavpack"
3211 libwavpack_encoder_select="audio_frame_queue"
3212 libwebp_encoder_deps="libwebp"
3213 libwebp_anim_encoder_deps="libwebp"
3214 libx262_encoder_deps="libx262"
3215 libx264_encoder_deps="libx264"
3216 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3217 libx264rgb_encoder_select="libx264_encoder"
3218 libx265_encoder_deps="libx265"
3219 libxavs_encoder_deps="libxavs"
3220 libxavs2_encoder_deps="libxavs2"
3221 libxvid_encoder_deps="libxvid"
3222 libzvbi_teletext_decoder_deps="libzvbi"
3223 vapoursynth_demuxer_deps="vapoursynth"
3224 videotoolbox_suggest="coreservices"
3225 videotoolbox_deps="corefoundation coremedia corevideo"
3226 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3227
3228 # demuxers / muxers
3229 ac3_demuxer_select="ac3_parser"
3230 aiff_muxer_select="iso_media"
3231 asf_demuxer_select="riffdec"
3232 asf_o_demuxer_select="riffdec"
3233 asf_muxer_select="riffenc"
3234 asf_stream_muxer_select="asf_muxer"
3235 avi_demuxer_select="iso_media riffdec exif"
3236 avi_muxer_select="riffenc"
3237 caf_demuxer_select="iso_media riffdec"
3238 caf_muxer_select="iso_media"
3239 dash_muxer_select="mp4_muxer"
3240 dash_demuxer_deps="libxml2"
3241 dirac_demuxer_select="dirac_parser"
3242 dts_demuxer_select="dca_parser"
3243 dtshd_demuxer_select="dca_parser"
3244 dv_demuxer_select="dvprofile"
3245 dv_muxer_select="dvprofile"
3246 dxa_demuxer_select="riffdec"
3247 eac3_demuxer_select="ac3_parser"
3248 f4v_muxer_select="mov_muxer"
3249 fifo_muxer_deps="threads"
3250 flac_demuxer_select="flac_parser"
3251 hds_muxer_select="flv_muxer"
3252 hls_muxer_select="mpegts_muxer"
3253 hls_muxer_suggest="gcrypt openssl"
3254 image2_alias_pix_demuxer_select="image2_demuxer"
3255 image2_brender_pix_demuxer_select="image2_demuxer"
3256 ipod_muxer_select="mov_muxer"
3257 ismv_muxer_select="mov_muxer"
3258 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3259 matroska_audio_muxer_select="matroska_muxer"
3260 matroska_demuxer_select="iso_media riffdec"
3261 matroska_demuxer_suggest="bzlib lzo zlib"
3262 matroska_muxer_select="iso_media riffenc"
3263 mmf_muxer_select="riffenc"
3264 mov_demuxer_select="iso_media riffdec"
3265 mov_demuxer_suggest="zlib"
3266 mov_muxer_select="iso_media riffenc rtpenc_chain"
3267 mp3_demuxer_select="mpegaudio_parser"
3268 mp3_muxer_select="mpegaudioheader"
3269 mp4_muxer_select="mov_muxer"
3270 mpegts_demuxer_select="iso_media"
3271 mpegts_muxer_select="adts_muxer latm_muxer"
3272 mpegtsraw_demuxer_select="mpegts_demuxer"
3273 mxf_d10_muxer_select="mxf_muxer"
3274 mxf_opatom_muxer_select="mxf_muxer"
3275 nut_muxer_select="riffenc"
3276 nuv_demuxer_select="riffdec"
3277 oga_muxer_select="ogg_muxer"
3278 ogg_demuxer_select="dirac_parse"
3279 ogv_muxer_select="ogg_muxer"
3280 opus_muxer_select="ogg_muxer"
3281 psp_muxer_select="mov_muxer"
3282 rtp_demuxer_select="sdp_demuxer"
3283 rtp_muxer_select="golomb"
3284 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3285 rtsp_demuxer_select="http_protocol rtpdec"
3286 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3287 sap_demuxer_select="sdp_demuxer"
3288 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3289 sdp_demuxer_select="rtpdec"
3290 smoothstreaming_muxer_select="ismv_muxer"
3291 spdif_demuxer_select="adts_header"
3292 spdif_muxer_select="adts_header"
3293 spx_muxer_select="ogg_muxer"
3294 swf_demuxer_suggest="zlib"
3295 tak_demuxer_select="tak_parser"
3296 tg2_muxer_select="mov_muxer"
3297 tgp_muxer_select="mov_muxer"
3298 vobsub_demuxer_select="mpegps_demuxer"
3299 w64_demuxer_select="wav_demuxer"
3300 w64_muxer_select="wav_muxer"
3301 wav_demuxer_select="riffdec"
3302 wav_muxer_select="riffenc"
3303 webm_muxer_select="iso_media riffenc"
3304 webm_dash_manifest_demuxer_select="matroska_demuxer"
3305 wtv_demuxer_select="mpegts_demuxer riffdec"
3306 wtv_muxer_select="mpegts_muxer riffenc"
3307 xmv_demuxer_select="riffdec"
3308 xwma_demuxer_select="riffdec"
3309
3310 # indevs / outdevs
3311 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3312 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3313 alsa_indev_deps="alsa"
3314 alsa_outdev_deps="alsa"
3315 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3316 avfoundation_indev_suggest="coregraphics applicationservices"
3317 avfoundation_indev_extralibs="-framework Foundation"
3318 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3319 caca_outdev_deps="libcaca"
3320 decklink_deps_any="libdl LoadLibrary"
3321 decklink_indev_deps="decklink threads"
3322 decklink_indev_extralibs="-lstdc++"
3323 decklink_outdev_deps="decklink threads"
3324 decklink_outdev_suggest="libklvanc"
3325 decklink_outdev_extralibs="-lstdc++"
3326 dshow_indev_deps="IBaseFilter"
3327 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3328 fbdev_indev_deps="linux_fb_h"
3329 fbdev_outdev_deps="linux_fb_h"
3330 gdigrab_indev_deps="CreateDIBSection"
3331 gdigrab_indev_extralibs="-lgdi32"
3332 gdigrab_indev_select="bmp_decoder"
3333 iec61883_indev_deps="libiec61883"
3334 jack_indev_deps="libjack"
3335 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3336 kmsgrab_indev_deps="libdrm"
3337 lavfi_indev_deps="avfilter"
3338 libcdio_indev_deps="libcdio"
3339 libdc1394_indev_deps="libdc1394"
3340 openal_indev_deps="openal"
3341 opengl_outdev_deps="opengl"
3342 opengl_outdev_suggest="sdl2"
3343 oss_indev_deps_any="sys_soundcard_h"
3344 oss_outdev_deps_any="sys_soundcard_h"
3345 pulse_indev_deps="libpulse"
3346 pulse_outdev_deps="libpulse"
3347 sdl2_outdev_deps="sdl2"
3348 sndio_indev_deps="sndio"
3349 sndio_outdev_deps="sndio"
3350 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3351 v4l2_indev_suggest="libv4l2"
3352 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3353 v4l2_outdev_suggest="libv4l2"
3354 vfwcap_indev_deps="vfw32 vfwcap_defines"
3355 xcbgrab_indev_deps="libxcb"
3356 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3357 xv_outdev_deps="xlib"
3358
3359 # protocols
3360 async_protocol_deps="threads"
3361 bluray_protocol_deps="libbluray"
3362 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3363 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3364 ffrtmpcrypt_protocol_select="tcp_protocol"
3365 ffrtmphttp_protocol_conflict="librtmp_protocol"
3366 ffrtmphttp_protocol_select="http_protocol"
3367 ftp_protocol_select="tcp_protocol"
3368 gopher_protocol_select="network"
3369 http_protocol_select="tcp_protocol"
3370 http_protocol_suggest="zlib"
3371 httpproxy_protocol_select="tcp_protocol"
3372 httpproxy_protocol_suggest="zlib"
3373 https_protocol_select="tls_protocol"
3374 https_protocol_suggest="zlib"
3375 icecast_protocol_select="http_protocol"
3376 mmsh_protocol_select="http_protocol"
3377 mmst_protocol_select="network"
3378 rtmp_protocol_conflict="librtmp_protocol"
3379 rtmp_protocol_select="tcp_protocol"
3380 rtmp_protocol_suggest="zlib"
3381 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3382 rtmpe_protocol_suggest="zlib"
3383 rtmps_protocol_conflict="librtmp_protocol"
3384 rtmps_protocol_select="tls_protocol"
3385 rtmps_protocol_suggest="zlib"
3386 rtmpt_protocol_select="ffrtmphttp_protocol"
3387 rtmpt_protocol_suggest="zlib"
3388 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3389 rtmpte_protocol_suggest="zlib"
3390 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3391 rtmpts_protocol_suggest="zlib"
3392 rtp_protocol_select="udp_protocol"
3393 schannel_conflict="openssl gnutls libtls mbedtls"
3394 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3395 sctp_protocol_select="network"
3396 securetransport_conflict="openssl gnutls libtls mbedtls"
3397 srtp_protocol_select="rtp_protocol srtp"
3398 tcp_protocol_select="network"
3399 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3400 tls_protocol_select="tcp_protocol"
3401 udp_protocol_select="network"
3402 udplite_protocol_select="network"
3403 unix_protocol_deps="sys_un_h"
3404 unix_protocol_select="network"
3405
3406 # external library protocols
3407 librtmp_protocol_deps="librtmp"
3408 librtmpe_protocol_deps="librtmp"
3409 librtmps_protocol_deps="librtmp"
3410 librtmpt_protocol_deps="librtmp"
3411 librtmpte_protocol_deps="librtmp"
3412 libsmbclient_protocol_deps="libsmbclient gplv3"
3413 libsrt_protocol_deps="libsrt"
3414 libsrt_protocol_select="network"
3415 libssh_protocol_deps="libssh"
3416 libtls_conflict="openssl gnutls mbedtls"
3417
3418 # filters
3419 afftdn_filter_deps="avcodec"
3420 afftdn_filter_select="fft"
3421 afftfilt_filter_deps="avcodec"
3422 afftfilt_filter_select="fft"
3423 afir_filter_deps="avcodec"
3424 afir_filter_select="fft"
3425 amovie_filter_deps="avcodec avformat"
3426 aresample_filter_deps="swresample"
3427 asr_filter_deps="pocketsphinx"
3428 ass_filter_deps="libass"
3429 atempo_filter_deps="avcodec"
3430 atempo_filter_select="rdft"
3431 avgblur_opencl_filter_deps="opencl"
3432 azmq_filter_deps="libzmq"
3433 blackframe_filter_deps="gpl"
3434 bm3d_filter_deps="avcodec"
3435 bm3d_filter_select="dct"
3436 boxblur_filter_deps="gpl"
3437 boxblur_opencl_filter_deps="opencl gpl"
3438 bs2b_filter_deps="libbs2b"
3439 colorkey_opencl_filter_deps="opencl"
3440 colormatrix_filter_deps="gpl"
3441 convolution_opencl_filter_deps="opencl"
3442 convolve_filter_deps="avcodec"
3443 convolve_filter_select="fft"
3444 coreimage_filter_deps="coreimage appkit"
3445 coreimage_filter_extralibs="-framework OpenGL"
3446 coreimagesrc_filter_deps="coreimage appkit"
3447 coreimagesrc_filter_extralibs="-framework OpenGL"
3448 cover_rect_filter_deps="avcodec avformat gpl"
3449 cropdetect_filter_deps="gpl"
3450 deconvolve_filter_deps="avcodec"
3451 deconvolve_filter_select="fft"
3452 deinterlace_qsv_filter_deps="libmfx"
3453 deinterlace_vaapi_filter_deps="vaapi"
3454 delogo_filter_deps="gpl"
3455 denoise_vaapi_filter_deps="vaapi"
3456 derain_filter_select="dnn"
3457 deshake_filter_select="pixelutils"
3458 deshake_opencl_filter_deps="opencl"
3459 dilation_opencl_filter_deps="opencl"
3460 drawtext_filter_deps="libfreetype"
3461 drawtext_filter_suggest="libfontconfig libfribidi"
3462 elbg_filter_deps="avcodec"
3463 eq_filter_deps="gpl"
3464 erosion_opencl_filter_deps="opencl"
3465 fftfilt_filter_deps="avcodec"
3466 fftfilt_filter_select="rdft"
3467 fftdnoiz_filter_deps="avcodec"
3468 fftdnoiz_filter_select="fft"
3469 find_rect_filter_deps="avcodec avformat gpl"
3470 firequalizer_filter_deps="avcodec"
3471 firequalizer_filter_select="rdft"
3472 flite_filter_deps="libflite"
3473 framerate_filter_select="scene_sad"
3474 freezedetect_filter_select="scene_sad"
3475 frei0r_filter_deps="frei0r libdl"
3476 frei0r_src_filter_deps="frei0r libdl"
3477 fspp_filter_deps="gpl"
3478 geq_filter_deps="gpl"
3479 histeq_filter_deps="gpl"
3480 hqdn3d_filter_deps="gpl"
3481 interlace_filter_deps="gpl"
3482 kerndeint_filter_deps="gpl"
3483 ladspa_filter_deps="ladspa libdl"
3484 lensfun_filter_deps="liblensfun version3"
3485 lv2_filter_deps="lv2"
3486 mcdeint_filter_deps="avcodec gpl"
3487 movie_filter_deps="avcodec avformat"
3488 mpdecimate_filter_deps="gpl"
3489 mpdecimate_filter_select="pixelutils"
3490 minterpolate_filter_select="scene_sad"
3491 mptestsrc_filter_deps="gpl"
3492 negate_filter_deps="lut_filter"
3493 nlmeans_opencl_filter_deps="opencl"
3494 nnedi_filter_deps="gpl"
3495 ocr_filter_deps="libtesseract"
3496 ocv_filter_deps="libopencv"
3497 openclsrc_filter_deps="opencl"
3498 overlay_opencl_filter_deps="opencl"
3499 overlay_qsv_filter_deps="libmfx"
3500 overlay_qsv_filter_select="qsvvpp"
3501 owdenoise_filter_deps="gpl"
3502 pan_filter_deps="swresample"
3503 perspective_filter_deps="gpl"
3504 phase_filter_deps="gpl"
3505 pp7_filter_deps="gpl"
3506 pp_filter_deps="gpl postproc"
3507 prewitt_opencl_filter_deps="opencl"
3508 procamp_vaapi_filter_deps="vaapi"
3509 program_opencl_filter_deps="opencl"
3510 pullup_filter_deps="gpl"
3511 removelogo_filter_deps="avcodec avformat swscale"
3512 repeatfields_filter_deps="gpl"
3513 resample_filter_deps="avresample"
3514 roberts_opencl_filter_deps="opencl"
3515 rubberband_filter_deps="librubberband"
3516 sab_filter_deps="gpl swscale"
3517 scale2ref_filter_deps="swscale"
3518 scale_filter_deps="swscale"
3519 scale_qsv_filter_deps="libmfx"
3520 select_filter_select="scene_sad"
3521 sharpness_vaapi_filter_deps="vaapi"
3522 showcqt_filter_deps="avcodec avformat swscale"
3523 showcqt_filter_suggest="libfontconfig libfreetype"
3524 showcqt_filter_select="fft"
3525 showfreqs_filter_deps="avcodec"
3526 showfreqs_filter_select="fft"
3527 showspectrum_filter_deps="avcodec"
3528 showspectrum_filter_select="fft"
3529 showspectrumpic_filter_deps="avcodec"
3530 showspectrumpic_filter_select="fft"
3531 signature_filter_deps="gpl avcodec avformat"
3532 smartblur_filter_deps="gpl swscale"
3533 sobel_opencl_filter_deps="opencl"
3534 sofalizer_filter_deps="libmysofa avcodec"
3535 sofalizer_filter_select="fft"
3536 spectrumsynth_filter_deps="avcodec"
3537 spectrumsynth_filter_select="fft"
3538 spp_filter_deps="gpl avcodec"
3539 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3540 sr_filter_deps="avformat swscale"
3541 sr_filter_select="dnn"
3542 stereo3d_filter_deps="gpl"
3543 subtitles_filter_deps="avformat avcodec libass"
3544 super2xsai_filter_deps="gpl"
3545 pixfmts_super2xsai_test_deps="super2xsai_filter"
3546 tinterlace_filter_deps="gpl"
3547 tinterlace_merge_test_deps="tinterlace_filter"
3548 tinterlace_pad_test_deps="tinterlace_filter"
3549 tonemap_filter_deps="const_nan"
3550 tonemap_opencl_filter_deps="opencl const_nan"
3551 transpose_opencl_filter_deps="opencl"
3552 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3553 unsharp_opencl_filter_deps="opencl"
3554 uspp_filter_deps="gpl avcodec"
3555 vaguedenoiser_filter_deps="gpl"
3556 vidstabdetect_filter_deps="libvidstab"
3557 vidstabtransform_filter_deps="libvidstab"
3558 libvmaf_filter_deps="libvmaf pthreads"
3559 zmq_filter_deps="libzmq"
3560 zoompan_filter_deps="swscale"
3561 zscale_filter_deps="libzimg const_nan"
3562 scale_vaapi_filter_deps="vaapi"
3563 vpp_qsv_filter_deps="libmfx"
3564 vpp_qsv_filter_select="qsvvpp"
3565 yadif_cuda_filter_deps="ffnvcodec"
3566 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3567
3568 # examples
3569 avio_dir_cmd_deps="avformat avutil"
3570 avio_reading_deps="avformat avcodec avutil"
3571 decode_audio_example_deps="avcodec avutil"
3572 decode_video_example_deps="avcodec avutil"
3573 demuxing_decoding_example_deps="avcodec avformat avutil"
3574 encode_audio_example_deps="avcodec avutil"
3575 encode_video_example_deps="avcodec avutil"
3576 extract_mvs_example_deps="avcodec avformat avutil"
3577 filter_audio_example_deps="avfilter avutil"
3578 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3579 filtering_video_example_deps="avfilter avcodec avformat avutil"
3580 http_multiclient_example_deps="avformat avutil fork"
3581 hw_decode_example_deps="avcodec avformat avutil"
3582 metadata_example_deps="avformat avutil"
3583 muxing_example_deps="avcodec avformat avutil swscale"
3584 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3585 remuxing_example_deps="avcodec avformat avutil"
3586 resampling_audio_example_deps="avutil swresample"
3587 scaling_video_example_deps="avutil swscale"
3588 transcode_aac_example_deps="avcodec avformat swresample"
3589 transcoding_example_deps="avfilter avcodec avformat avutil"
3590 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3591 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3592
3593 # EXTRALIBS_LIST
3594 cpu_init_extralibs="pthreads_extralibs"
3595 cws2fws_extralibs="zlib_extralibs"
3596
3597 # libraries, in any order
3598 avcodec_deps="avutil"
3599 avcodec_suggest="libm"
3600 avcodec_select="null_bsf"
3601 avdevice_deps="avformat avcodec avutil"
3602 avdevice_suggest="libm"
3603 avfilter_deps="avutil"
3604 avfilter_suggest="libm"
3605 avformat_deps="avcodec avutil"
3606 avformat_suggest="libm network zlib"
3607 avresample_deps="avutil"
3608 avresample_suggest="libm"
3609 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3610 postproc_deps="avutil gpl"
3611 postproc_suggest="libm"
3612 swresample_deps="avutil"
3613 swresample_suggest="libm libsoxr"
3614 swscale_deps="avutil"
3615 swscale_suggest="libm"
3616
3617 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3618 avfilter_extralibs="pthreads_extralibs"
3619 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3620
3621 # programs
3622 ffmpeg_deps="avcodec avfilter avformat"
3623 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3624                hflip_filter null_filter
3625                transpose_filter trim_filter vflip_filter"
3626 ffmpeg_suggest="ole32 psapi shell32"
3627 ffplay_deps="avcodec avformat swscale swresample sdl2"
3628 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3629 ffplay_suggest="shell32"
3630 ffprobe_deps="avcodec avformat"
3631 ffprobe_suggest="shell32"
3632
3633 # documentation
3634 podpages_deps="perl"
3635 manpages_deps="perl pod2man"
3636 htmlpages_deps="perl"
3637 htmlpages_deps_any="makeinfo_html texi2html"
3638 txtpages_deps="perl makeinfo"
3639 doc_deps_any="manpages htmlpages podpages txtpages"
3640
3641 # default parameters
3642
3643 logfile="ffbuild/config.log"
3644
3645 # installation paths
3646 prefix_default="/usr/local"
3647 bindir_default='${prefix}/bin'
3648 datadir_default='${prefix}/share/ffmpeg'
3649 docdir_default='${prefix}/share/doc/ffmpeg'
3650 incdir_default='${prefix}/include'
3651 libdir_default='${prefix}/lib'
3652 mandir_default='${prefix}/share/man'
3653
3654 # toolchain
3655 ar_default="ar"
3656 cc_default="gcc"
3657 cxx_default="g++"
3658 host_cc_default="gcc"
3659 doxygen_default="doxygen"
3660 install="install"
3661 ln_s_default="ln -s -f"
3662 nm_default="nm -g"
3663 pkg_config_default=pkg-config
3664 ranlib_default="ranlib"
3665 strip_default="strip"
3666 version_script='--version-script'
3667 objformat="elf32"
3668 x86asmexe_default="nasm"
3669 windres_default="windres"
3670 striptype="direct"
3671
3672 # OS
3673 target_os_default=$(tolower $(uname -s))
3674 host_os=$target_os_default
3675
3676 # machine
3677 if test "$target_os_default" = aix; then
3678     arch_default=$(uname -p)
3679     strip_default="strip -X32_64"
3680     nm_default="nm -g -X32_64"
3681 else
3682     arch_default=$(uname -m)
3683 fi
3684 cpu="generic"
3685 intrinsics="none"
3686
3687 # configurable options
3688 enable $PROGRAM_LIST
3689 enable $DOCUMENT_LIST
3690 enable $EXAMPLE_LIST
3691 enable $(filter_out avresample $LIBRARY_LIST)
3692 enable stripping
3693
3694 enable asm
3695 enable debug
3696 enable doc
3697 enable faan faandct faanidct
3698 enable optimizations
3699 enable runtime_cpudetect
3700 enable safe_bitstream_reader
3701 enable static
3702 enable swscale_alpha
3703 enable valgrind_backtrace
3704
3705 sws_max_filter_size_default=256
3706 set_default sws_max_filter_size
3707
3708 # internal components are enabled by default
3709 enable $EXTRALIBS_LIST
3710
3711 # Avoid external, non-system, libraries getting enabled by dependency resolution
3712 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3713
3714 # build settings
3715 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3716 LIBPREF="lib"
3717 LIBSUF=".a"
3718 FULLNAME='$(NAME)$(BUILDSUF)'
3719 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3720 SLIBPREF="lib"
3721 SLIBSUF=".so"
3722 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3723 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3724 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3725 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3726 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3727 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3728 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3729
3730 asflags_filter=echo
3731 cflags_filter=echo
3732 ldflags_filter=echo
3733
3734 AS_C='-c'
3735 AS_O='-o $@'
3736 CC_C='-c'
3737 CC_E='-E -o $@'
3738 CC_O='-o $@'
3739 CXX_C='-c'
3740 CXX_O='-o $@'
3741 OBJCC_C='-c'
3742 OBJCC_E='-E -o $@'
3743 OBJCC_O='-o $@'
3744 X86ASM_O='-o $@'
3745 LD_O='-o $@'
3746 LD_LIB='-l%'
3747 LD_PATH='-L'
3748 HOSTCC_C='-c'
3749 HOSTCC_E='-E -o $@'
3750 HOSTCC_O='-o $@'
3751 HOSTLD_O='-o $@'
3752 NVCC_C='-c'
3753 NVCC_O='-o $@'
3754
3755 host_extralibs='-lm'
3756 host_cflags_filter=echo
3757 host_ldflags_filter=echo
3758
3759 target_path='$(CURDIR)'
3760
3761 # since the object filename is not given with the -MM flag, the compiler
3762 # is only able to print the basename, and we must add the path ourselves
3763 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3764 DEPFLAGS='-MM'
3765
3766 mkdir -p ffbuild
3767
3768 # find source path
3769 if test -f configure; then
3770     source_path=.
3771 elif test -f src/configure; then
3772     source_path=src
3773 else
3774     source_path=$(cd $(dirname "$0"); pwd)
3775     case "$source_path" in
3776         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3777     esac
3778     test -e "$source_path/config.h" &&
3779         die "Out of tree builds are impossible with config.h in source dir."
3780 fi
3781
3782 for v in "$@"; do
3783     r=${v#*=}
3784     l=${v%"$r"}
3785     r=$(sh_quote "$r")
3786     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3787 done
3788
3789 find_things_extern(){
3790     thing=$1
3791     pattern=$2
3792     file=$source_path/$3
3793     out=${4:-$thing}
3794     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3795 }
3796
3797 find_filters_extern(){
3798     file=$source_path/$1
3799     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3800 }
3801
3802 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3803 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3804 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3805 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3806 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3807 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3808 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3809 CODEC_LIST="
3810     $ENCODER_LIST
3811     $DECODER_LIST
3812 "
3813 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3814 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3815 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3816 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3817
3818 AVCODEC_COMPONENTS_LIST="
3819     $BSF_LIST
3820     $DECODER_LIST
3821     $ENCODER_LIST
3822     $HWACCEL_LIST
3823     $PARSER_LIST
3824 "
3825
3826 AVDEVICE_COMPONENTS_LIST="
3827     $INDEV_LIST
3828     $OUTDEV_LIST
3829 "
3830
3831 AVFILTER_COMPONENTS_LIST="
3832     $FILTER_LIST
3833 "
3834
3835 AVFORMAT_COMPONENTS_LIST="
3836     $DEMUXER_LIST
3837     $MUXER_LIST
3838     $PROTOCOL_LIST
3839 "
3840
3841 ALL_COMPONENTS="
3842     $AVCODEC_COMPONENTS_LIST
3843     $AVDEVICE_COMPONENTS_LIST
3844     $AVFILTER_COMPONENTS_LIST
3845     $AVFORMAT_COMPONENTS_LIST
3846 "
3847
3848 for n in $COMPONENT_LIST; do
3849     v=$(toupper ${n%s})_LIST
3850     eval enable \$$v
3851     eval ${n}_if_any="\$$v"
3852 done
3853
3854 enable $ARCH_EXT_LIST
3855
3856 die_unknown(){
3857     echo "Unknown option \"$1\"."
3858     echo "See $0 --help for available options."
3859     exit 1
3860 }
3861
3862 print_in_columns() {
3863     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3864     {
3865         num_cols = width > col_width ? int(width / col_width) : 1;
3866         num_rows = int((NF + num_cols-1) / num_cols);
3867         y = x = 1;
3868         for (y = 1; y <= num_rows; y++) {
3869             i = y;
3870             for (x = 1; x <= num_cols; x++) {
3871                 if (i <= NF) {
3872                   line = sprintf("%s%-" col_width "s", line, $i);
3873                 }
3874                 i = i + num_rows;
3875             }
3876             print line; line = "";
3877         }
3878     }' | sed 's/ *$//'
3879 }
3880
3881 show_list() {
3882     suffix=_$1
3883     shift
3884     echo $* | sed s/$suffix//g | print_in_columns
3885     exit 0
3886 }
3887
3888 rand_list(){
3889     IFS=', '
3890     set -- $*
3891     unset IFS
3892     for thing; do
3893         comp=${thing%:*}
3894         prob=${thing#$comp}
3895         prob=${prob#:}
3896         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3897         echo "prob ${prob:-0.5}"
3898         printf '%s\n' $comp
3899     done
3900 }
3901
3902 do_random(){
3903     action=$1
3904     shift
3905     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3906     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3907 }
3908
3909 for opt do
3910     optval="${opt#*=}"
3911     case "$opt" in
3912         --extra-ldflags=*)
3913             add_ldflags $optval
3914         ;;
3915         --extra-ldexeflags=*)
3916             add_ldexeflags $optval
3917         ;;
3918         --extra-ldsoflags=*)
3919             add_ldsoflags $optval
3920         ;;
3921         --extra-ldlibflags=*)
3922             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3923                  "removed in the future. Use --extra-ldsoflags instead."
3924             add_ldsoflags $optval
3925         ;;
3926         --extra-libs=*)
3927             add_extralibs $optval
3928         ;;
3929         --disable-devices)
3930             disable $INDEV_LIST $OUTDEV_LIST
3931         ;;
3932         --enable-debug=*)
3933             debuglevel="$optval"
3934         ;;
3935         --disable-programs)
3936             disable $PROGRAM_LIST
3937         ;;
3938         --disable-everything)
3939             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3940         ;;
3941         --disable-all)
3942             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3943             disable $LIBRARY_LIST $PROGRAM_LIST doc
3944             enable avutil
3945         ;;
3946         --enable-random|--disable-random)
3947             action=${opt%%-random}
3948             do_random ${action#--} $COMPONENT_LIST
3949         ;;
3950         --enable-random=*|--disable-random=*)
3951             action=${opt%%-random=*}
3952             do_random ${action#--} $optval
3953         ;;
3954         --enable-sdl)
3955             enable sdl2
3956         ;;
3957         --enable-*=*|--disable-*=*)
3958             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3959             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3960             eval list=\$$(toupper $thing)_LIST
3961             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3962             list=$(filter "$name" $list)
3963             [ "$list" = "" ] && warn "Option $opt did not match anything"
3964             test $action = enable && warn_if_gets_disabled $list
3965             $action $list
3966         ;;
3967         --enable-yasm|--disable-yasm)
3968             warn "The ${opt} option is only provided for compatibility and will be\n"\
3969                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3970             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3971         ;;
3972         --yasmexe=*)
3973             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3974                  "removed in the future. Use --x86asmexe instead."
3975             x86asmexe="$optval"
3976         ;;
3977         --enable-?*|--disable-?*)
3978             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3979             if is_in $option $COMPONENT_LIST; then
3980                 test $action = disable && action=unset
3981                 eval $action \$$(toupper ${option%s})_LIST
3982             elif is_in $option $CMDLINE_SELECT; then
3983                 $action $option
3984             else
3985                 die_unknown $opt
3986             fi
3987         ;;
3988         --list-*)
3989             NAME="${opt#--list-}"
3990             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3991             NAME=${NAME%s}
3992             eval show_list $NAME \$$(toupper $NAME)_LIST
3993         ;;
3994         --help|-h) show_help
3995         ;;
3996         --quiet|-q) quiet=yes
3997         ;;
3998         --fatal-warnings) enable fatal_warnings
3999         ;;
4000         --libfuzzer=*)
4001             libfuzzer_path="$optval"
4002         ;;
4003         *)
4004             optname="${opt%%=*}"
4005             optname="${optname#--}"
4006             optname=$(echo "$optname" | sed 's/-/_/g')
4007             if is_in $optname $CMDLINE_SET; then
4008                 eval $optname='$optval'
4009             elif is_in $optname $CMDLINE_APPEND; then
4010                 append $optname "$optval"
4011             else
4012                 die_unknown $opt
4013             fi
4014         ;;
4015     esac
4016 done
4017
4018 for e in $env; do
4019     eval "export $e"
4020 done
4021
4022 if disabled autodetect; then
4023
4024     # Unless iconv is explicitely disabled by the user, we still want to probe
4025     # for the iconv from the libc.
4026     disabled iconv || enable libc_iconv
4027
4028     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4029     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4030 fi
4031 # Mark specifically enabled, but normally autodetected libraries as requested.
4032 for lib in $AUTODETECT_LIBS; do
4033     enabled $lib && request $lib
4034 done
4035 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4036 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4037 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4038
4039 disabled logging && logfile=/dev/null
4040
4041 # command line configuration sanity checks
4042
4043 # we need to build at least one lib type
4044 if ! enabled_any static shared; then
4045     cat <<EOF
4046 At least one library type must be built.
4047 Specify --enable-static to build the static libraries or --enable-shared to
4048 build the shared libraries as well. To only build the shared libraries specify
4049 --disable-static in addition to --enable-shared.
4050 EOF
4051     exit 1
4052 fi
4053
4054 die_license_disabled() {
4055     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4056 }
4057
4058 die_license_disabled_gpl() {
4059     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4060 }
4061
4062 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4063 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4064
4065 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4066 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4067
4068 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4069
4070 if enabled nonfree; then
4071     license="nonfree and unredistributable"
4072 elif enabled gplv3; then
4073     license="GPL version 3 or later"
4074 elif enabled lgplv3; then
4075     license="LGPL version 3 or later"
4076 elif enabled gpl; then
4077     license="GPL version 2 or later"
4078 else
4079     license="LGPL version 2.1 or later"
4080 fi
4081
4082 enabled_all gnutls openssl &&
4083     die "GnuTLS and OpenSSL must not be enabled at the same time."
4084
4085 enabled_all gnutls mbedtls &&
4086     die "GnuTLS and mbedTLS must not be enabled at the same time."
4087
4088 enabled_all openssl mbedtls &&
4089     die "OpenSSL and mbedTLS must not be enabled at the same time."
4090
4091 # Disable all the library-specific components if the library itself
4092 # is disabled, see AVCODEC_LIST and following _LIST variables.
4093
4094 disable_components(){
4095     disabled ${1} && disable $(
4096         eval components="\$$(toupper ${1})_COMPONENTS"
4097         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4098     )
4099 }
4100
4101 map 'disable_components $v' $LIBRARY_LIST
4102
4103 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4104 set >> $logfile
4105
4106 test -n "$valgrind" && toolchain="valgrind-memcheck"
4107
4108 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4109     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4110     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4111 }
4112
4113 case "$toolchain" in
4114     *-asan)
4115         cc_default="${toolchain%-asan}"
4116         add_cflags  -fsanitize=address
4117         add_ldflags -fsanitize=address
4118     ;;
4119     *-msan)
4120         cc_default="${toolchain%-msan}"
4121         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4122         add_ldflags -fsanitize=memory
4123     ;;
4124     *-tsan)
4125         cc_default="${toolchain%-tsan}"
4126         add_cflags  -fsanitize=thread
4127         add_ldflags -fsanitize=thread
4128         case "$toolchain" in
4129             gcc-tsan)
4130                 add_cflags  -fPIC
4131                 add_ldflags -fPIC
4132                 ;;
4133         esac
4134     ;;
4135     *-usan)
4136         cc_default="${toolchain%-usan}"
4137         add_cflags  -fsanitize=undefined
4138         add_ldflags -fsanitize=undefined
4139     ;;
4140     valgrind-*)
4141         target_exec_default="valgrind"
4142         case "$toolchain" in
4143             valgrind-massif)
4144                 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"
4145                 ;;
4146             valgrind-memcheck)
4147                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4148                 ;;
4149         esac
4150     ;;
4151     msvc)
4152         # Check whether the current MSVC version needs the C99 converter.
4153         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4154         # support enough of C99 to build ffmpeg. Default to the new
4155         # behaviour if the regexp was unable to match anything, since this
4156         # successfully parses the version number of existing supported
4157         # versions that require the converter (MSVC 2010 and 2012).
4158         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4159         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4160             cc_default="cl.exe"
4161             cxx_default="cl.exe"
4162         else
4163             die "Unsupported MSVC version (2013 or newer required)"
4164         fi
4165         ld_default="$source_path/compat/windows/mslink"
4166         nm_default="dumpbin.exe -symbols"
4167         ar_default="lib.exe"
4168         case "$arch" in
4169         aarch64|arm64)
4170             as_default="armasm64.exe"
4171             ;;
4172         arm*)
4173             as_default="armasm.exe"
4174             ;;
4175         esac
4176         target_os_default="win32"
4177         # Use a relative path for TMPDIR. This makes sure all the
4178         # ffconf temp files are written with a relative path, avoiding
4179         # issues with msys/win32 path conversion for MSVC parameters
4180         # such as -Fo<file> or -out:<file>.
4181         TMPDIR=.
4182     ;;
4183     icl)
4184         cc_default="icl"
4185         ld_default="xilink"
4186         nm_default="dumpbin -symbols"
4187         ar_default="xilib"
4188         target_os_default="win32"
4189         TMPDIR=.
4190     ;;
4191     gcov)
4192         add_cflags  -fprofile-arcs -ftest-coverage
4193         add_ldflags -fprofile-arcs -ftest-coverage
4194     ;;
4195     llvm-cov)
4196         add_cflags -fprofile-arcs -ftest-coverage
4197         add_ldflags --coverage
4198     ;;
4199     hardened)
4200         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4201         add_cflags   -fno-strict-overflow -fstack-protector-all
4202         add_ldflags  -Wl,-z,relro -Wl,-z,now
4203         add_cflags   -fPIE
4204         add_ldexeflags -fPIE -pie
4205     ;;
4206     ?*)
4207         die "Unknown toolchain $toolchain"
4208     ;;
4209 esac
4210
4211 if test -n "$cross_prefix"; then
4212     test -n "$arch" && test -n "$target_os" ||
4213         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4214     enable cross_compile
4215 fi
4216
4217 set_default target_os
4218 if test "$target_os" = android; then
4219     cc_default="clang"
4220 fi
4221
4222 ar_default="${cross_prefix}${ar_default}"
4223 cc_default="${cross_prefix}${cc_default}"
4224 cxx_default="${cross_prefix}${cxx_default}"
4225 nm_default="${cross_prefix}${nm_default}"
4226 pkg_config_default="${cross_prefix}${pkg_config_default}"
4227 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4228     ranlib_default="${cross_prefix}${ranlib_default} -D"
4229 else
4230     ranlib_default="${cross_prefix}${ranlib_default}"
4231 fi
4232 strip_default="${cross_prefix}${strip_default}"
4233 windres_default="${cross_prefix}${windres_default}"
4234
4235 sysinclude_default="${sysroot}/usr/include"
4236
4237 if enabled cuda_sdk; then
4238     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4239     enable cuda_nvcc
4240 fi
4241
4242 if enabled cuda_nvcc; then
4243     nvcc_default="nvcc"
4244     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4245 else
4246     nvcc_default="clang"
4247     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4248     NVCC_C=""
4249 fi
4250
4251 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4252     target_exec x86asmexe nvcc
4253 enabled cross_compile || host_cc_default=$cc
4254 set_default host_cc
4255
4256 pkg_config_fail_message=""
4257 if ! $pkg_config --version >/dev/null 2>&1; then
4258     warn "$pkg_config not found, library detection may fail."
4259     pkg_config=false
4260 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4261     pkg_config_fail_message="
4262 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4263 fi
4264
4265 if test $doxygen != $doxygen_default && \
4266   ! $doxygen --version >/dev/null 2>&1; then
4267     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4268 fi
4269
4270 exesuf() {
4271     case $1 in
4272         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4273     esac
4274 }
4275
4276 EXESUF=$(exesuf $target_os)
4277 HOSTEXESUF=$(exesuf $host_os)
4278
4279 # set temporary file name
4280 : ${TMPDIR:=$TEMPDIR}
4281 : ${TMPDIR:=$TMP}
4282 : ${TMPDIR:=/tmp}
4283
4284 if [ -n "$tempprefix" ] ; then
4285     mktemp(){
4286         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4287         echo "$tmpname"
4288         mkdir "$tmpname"
4289     }
4290 elif ! test_cmd mktemp -u XXXXXX; then
4291     # simple replacement for missing mktemp
4292     # NOT SAFE FOR GENERAL USE
4293     mktemp(){
4294         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4295         echo "$tmpname"
4296         mkdir "$tmpname"
4297     }
4298 fi
4299
4300 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4301     die "Unable to create temporary directory in $TMPDIR."
4302
4303 tmpfile(){
4304     tmp="${FFTMPDIR}/test"$2
4305     (set -C; exec > $tmp) 2> /dev/null ||
4306         die "Unable to create temporary file in $FFTMPDIR."
4307     eval $1=$tmp
4308 }
4309
4310 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4311 trap 'exit 2' INT
4312
4313 tmpfile TMPASM .asm
4314 tmpfile TMPC   .c
4315 tmpfile TMPCPP .cpp
4316 tmpfile TMPE   $EXESUF
4317 tmpfile TMPH   .h
4318 tmpfile TMPM   .m
4319 tmpfile TMPCU  .cu
4320 tmpfile TMPO   .o
4321 tmpfile TMPS   .S
4322 tmpfile TMPSH  .sh
4323 tmpfile TMPV   .ver
4324
4325 unset -f mktemp
4326
4327 chmod +x $TMPE
4328
4329 # make sure we can execute files in $TMPDIR
4330 cat > $TMPSH 2>> $logfile <<EOF
4331 #! /bin/sh
4332 EOF
4333 chmod +x $TMPSH >> $logfile 2>&1
4334 if ! $TMPSH >> $logfile 2>&1; then
4335     cat <<EOF
4336 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4337 variable to another directory and make sure that it is not mounted noexec.
4338 EOF
4339     die "Sanity test failed."
4340 fi
4341
4342 armasm_flags(){
4343     for flag; do
4344         case $flag in
4345             # Filter out MSVC cl.exe options from cflags that shouldn't
4346             # be passed to gas-preprocessor
4347             -M[TD]*)                                            ;;
4348             *)                  echo $flag                      ;;
4349         esac
4350    done
4351 }
4352
4353 cparser_flags(){
4354     for flag; do
4355         case $flag in
4356             -Wno-switch)             echo -Wno-switch-enum ;;
4357             -Wno-format-zero-length) ;;
4358             -Wdisabled-optimization) ;;
4359             -Wno-pointer-sign)       echo -Wno-other ;;
4360             *)                       echo $flag ;;
4361         esac
4362     done
4363 }
4364
4365 msvc_common_flags(){
4366     for flag; do
4367         case $flag in
4368             # In addition to specifying certain flags under the compiler
4369             # specific filters, they must be specified here as well or else the
4370             # generic catch all at the bottom will print the original flag.
4371             -Wall)                ;;
4372             -Wextra)              ;;
4373             -std=c99)             ;;
4374             # Common flags
4375             -fomit-frame-pointer) ;;
4376             -g)                   echo -Z7 ;;
4377             -fno-math-errno)      ;;
4378             -fno-common)          ;;
4379             -fno-signed-zeros)    ;;
4380             -fPIC)                ;;
4381             -mthumb)              ;;
4382             -march=*)             ;;
4383             -lz)                  echo zlib.lib ;;
4384             -lx264)               echo libx264.lib ;;
4385             -lstdc++)             ;;
4386             -l*)                  echo ${flag#-l}.lib ;;
4387             -LARGEADDRESSAWARE)   echo $flag ;;
4388             -L*)                  echo -libpath:${flag#-L} ;;
4389             *)                    echo $flag ;;
4390         esac
4391     done
4392 }
4393
4394 msvc_flags(){
4395     msvc_common_flags "$@"
4396     for flag; do
4397         case $flag in
4398             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4399                                        -wd4554 ;;
4400             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4401                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4402                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4403                                        -wd4307 \
4404                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4405         esac
4406     done
4407 }
4408
4409 icl_flags(){
4410     msvc_common_flags "$@"
4411     for flag; do
4412         case $flag in
4413             # Despite what Intel's documentation says -Wall, which is supported
4414             # on Windows, does enable remarks so disable them here.
4415             -Wall)                echo $flag -Qdiag-disable:remark ;;
4416             -std=c99)             echo -Qstd=c99 ;;
4417             -flto)                echo -ipo ;;
4418         esac
4419     done
4420 }
4421
4422 icc_flags(){
4423     for flag; do
4424         case $flag in
4425             -flto)                echo -ipo ;;
4426             *)                    echo $flag ;;
4427         esac
4428     done
4429 }
4430
4431 suncc_flags(){
4432     for flag; do
4433         case $flag in
4434             -march=*|-mcpu=*)
4435                 case "${flag#*=}" in
4436                     native)                   echo -xtarget=native       ;;
4437                     v9|niagara)               echo -xarch=sparc          ;;
4438                     ultrasparc)               echo -xarch=sparcvis       ;;
4439                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4440                     i586|pentium)             echo -xchip=pentium        ;;
4441                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4442                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4443                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4444                     pentium4*)          echo -xtarget=pentium4           ;;
4445                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4446                     *-sse3)             echo -xarch=sse3                 ;;
4447                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4448                     bonnell)                   echo -xarch=ssse3         ;;
4449                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4450                     westmere)                  echo -xtarget=westmere    ;;
4451                     silvermont)                echo -xarch=sse4_2        ;;
4452                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4453                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4454                                                echo -xarch=avx           ;;
4455                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4456                     btver1)                    echo -xarch=amdsse4a      ;;
4457                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4458                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4459                     k8|opteron|athlon64|athlon-fx)
4460                                                echo -xarch=sse2a         ;;
4461                     athlon*)                   echo -xarch=pentium_proa  ;;
4462                 esac
4463                 ;;
4464             -std=c99)             echo -xc99              ;;
4465             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4466             -fPIC)                echo -KPIC -xcode=pic32 ;;
4467             -W*,*)                echo $flag              ;;
4468             -f*-*|-W*|-mimpure-text)                      ;;
4469             -shared)              echo -G                 ;;
4470             *)                    echo $flag              ;;
4471         esac
4472     done
4473 }
4474
4475 probe_cc(){
4476     pfx=$1
4477     _cc=$2
4478     first=$3
4479
4480     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4481     unset _ld_o _ldflags _ld_lib _ld_path
4482     unset _depflags _DEPCMD _DEPFLAGS
4483     _flags_filter=echo
4484
4485     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4486         true # no-op to avoid reading stdin in following checks
4487     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4488         _type=llvm_gcc
4489         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4490         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4491         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4492         _cflags_speed='-O3'
4493         _cflags_size='-Os'
4494     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4495         _type=gcc
4496         gcc_version=$($_cc --version | head -n1)
4497         gcc_basever=$($_cc -dumpversion)
4498         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4499         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4500         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4501         case $gcc_basever in
4502             2) ;;
4503             2.*) ;;
4504             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4505         esac
4506         if [ "$first" = true ]; then
4507             case $gcc_basever in
4508                 4.2*)
4509                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4510             esac
4511         fi
4512         _cflags_speed='-O3'
4513         _cflags_size='-Os'
4514     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4515         _type=icc
4516         _ident=$($_cc --version | head -n1)
4517         _depflags='-MMD'
4518         _cflags_speed='-O3'
4519         _cflags_size='-Os'
4520         _cflags_noopt='-O1'
4521         _flags_filter=icc_flags
4522     elif $_cc -v 2>&1 | grep -q xlc; then
4523         _type=xlc
4524         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4525         _cflags_speed='-O5'
4526         _cflags_size='-O5 -qcompact'
4527     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4528         test -d "$sysroot" || die "No valid sysroot specified."
4529         _type=armcc
4530         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4531         armcc_conf="$PWD/armcc.conf"
4532         $_cc --arm_linux_configure                 \
4533              --arm_linux_config_file="$armcc_conf" \
4534              --configure_sysroot="$sysroot"        \
4535              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4536              die "Error creating armcc configuration file."
4537         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4538         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4539         as_default="${cross_prefix}gcc"
4540         _depflags='-MMD'
4541         _cflags_speed='-O3'
4542         _cflags_size='-Os'
4543     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4544         _type=clang
4545         _ident=$($_cc --version 2>/dev/null | head -n1)
4546         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4547         _cflags_speed='-O3'
4548         _cflags_size='-Oz'
4549     elif $_cc -V 2>&1 | grep -q Sun; then
4550         _type=suncc
4551         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4552         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4553         _DEPFLAGS='-xM1 -xc99'
4554         _ldflags='-std=c99'
4555         _cflags_speed='-O5'
4556         _cflags_size='-O5 -xspace'
4557         _flags_filter=suncc_flags
4558     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4559         _type=pathscale
4560         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4561         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4562         _cflags_speed='-O2'
4563         _cflags_size='-Os'
4564         _flags_filter='filter_out -Wdisabled-optimization'
4565     elif $_cc -v 2>&1 | grep -q Open64; then
4566         _type=open64
4567         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4568         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4569         _cflags_speed='-O2'
4570         _cflags_size='-Os'
4571         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4572     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4573         _type=armasm
4574         _ident=$($_cc | head -n1)
4575         # 4509: "This form of conditional instruction is deprecated"
4576         _flags="-nologo -ignore 4509"
4577         _flags_filter=armasm_flags
4578     elif $_cc 2>&1 | grep -q Intel; then
4579         _type=icl
4580         _ident=$($_cc 2>&1 | head -n1)
4581         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4582         # Not only is O3 broken on 13.x+ but it is slower on all previous
4583         # versions (tested) as well.
4584         _cflags_speed="-O2"
4585         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4586         if $_cc 2>&1 | grep -q Linker; then
4587             _ld_o='-out:$@'
4588         else
4589             _ld_o='-Fe$@'
4590         fi
4591         _cc_o='-Fo$@'
4592         _cc_e='-P'
4593         _flags_filter=icl_flags
4594         _ld_lib='lib%.a'
4595         _ld_path='-libpath:'
4596         # -Qdiag-error to make icl error when seeing certain unknown arguments
4597         _flags='-nologo -Qdiag-error:4044,10157'
4598         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4599         # with MSVC which enables it by default.
4600         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4601         disable stripping
4602     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4603         # lld can emulate multiple different linkers; in ms link.exe mode,
4604         # the -? parameter gives the help output which contains an identifyable
4605         # string, while it gives an error in other modes.
4606         _type=lld-link
4607         # The link.exe mode doesn't have a switch for getting the version,
4608         # but we can force it back to gnu mode and get the version from there.
4609         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4610         _ld_o='-out:$@'
4611         _flags_filter=msvc_flags
4612         _ld_lib='lib%.a'
4613         _ld_path='-libpath:'
4614     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4615         _type=msvc
4616         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4617         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4618         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4619         _cflags_speed="-O2"
4620         _cflags_size="-O1"
4621         _cflags_noopt="-O1"
4622         if $_cc -nologo- 2>&1 | grep -q Linker; then
4623             _ld_o='-out:$@'
4624         else
4625             _ld_o='-Fe$@'
4626         fi
4627         _cc_o='-Fo$@'
4628         _cc_e='-P -Fi$@'
4629         _flags_filter=msvc_flags
4630         _ld_lib='lib%.a'
4631         _ld_path='-libpath:'
4632         _flags='-nologo'
4633         disable stripping
4634     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4635         _type=cparser
4636         _ident=$($_cc --version | head -n1)
4637         _depflags='-MMD'
4638         _cflags_speed='-O4'
4639         _cflags_size='-O2'
4640         _flags_filter=cparser_flags
4641     fi
4642
4643     eval ${pfx}_type=\$_type
4644     eval ${pfx}_ident=\$_ident
4645 }
4646
4647 set_ccvars(){
4648     eval ${1}_C=\${_cc_c-\${${1}_C}}
4649     eval ${1}_E=\${_cc_e-\${${1}_E}}
4650     eval ${1}_O=\${_cc_o-\${${1}_O}}
4651
4652     if [ -n "$_depflags" ]; then
4653         eval ${1}_DEPFLAGS=\$_depflags
4654     else
4655         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4656         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4657         eval DEP${1}FLAGS=\$_flags
4658     fi
4659 }
4660
4661 probe_cc cc "$cc" "true"
4662 cflags_filter=$_flags_filter
4663 cflags_speed=$_cflags_speed
4664 cflags_size=$_cflags_size
4665 cflags_noopt=$_cflags_noopt
4666 add_cflags $_flags $_cflags
4667 cc_ldflags=$_ldflags
4668 set_ccvars CC
4669 set_ccvars CXX
4670
4671 probe_cc hostcc "$host_cc"
4672 host_cflags_filter=$_flags_filter
4673 host_cflags_speed=$_cflags_speed
4674 add_host_cflags  $_flags $_cflags
4675 set_ccvars HOSTCC
4676
4677 test -n "$cc_type" && enable $cc_type ||
4678     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4679
4680 : ${as_default:=$cc}
4681 : ${objcc_default:=$cc}
4682 : ${dep_cc_default:=$cc}
4683 : ${ld_default:=$cc}
4684 : ${host_ld_default:=$host_cc}
4685 set_default ar as objcc dep_cc ld ln_s host_ld windres
4686
4687 probe_cc as "$as"
4688 asflags_filter=$_flags_filter
4689 add_asflags $_flags $_cflags
4690 set_ccvars AS
4691
4692 probe_cc objcc "$objcc"
4693 objcflags_filter=$_flags_filter
4694 add_objcflags $_flags $_cflags
4695 set_ccvars OBJC
4696
4697 probe_cc ld "$ld"
4698 ldflags_filter=$_flags_filter
4699 add_ldflags $_flags $_ldflags
4700 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4701 LD_O=${_ld_o-$LD_O}
4702 LD_LIB=${_ld_lib-$LD_LIB}
4703 LD_PATH=${_ld_path-$LD_PATH}
4704
4705 probe_cc hostld "$host_ld"
4706 host_ldflags_filter=$_flags_filter
4707 add_host_ldflags $_flags $_ldflags
4708 HOSTLD_O=${_ld_o-$HOSTLD_O}
4709
4710 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4711     probe_cc depcc "$dep_cc"
4712     CCDEP=${_DEPCMD:-$DEPCMD}
4713     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4714     DEPCCFLAGS=$_flags
4715 fi
4716
4717 if $ar 2>&1 | grep -q Microsoft; then
4718     arflags="-nologo"
4719     ar_o='-out:$@'
4720 elif $ar 2>&1 | grep -q "\[D\] "; then
4721     arflags="rcD"
4722     ar_o='$@'
4723 else
4724     arflags="rc"
4725     ar_o='$@'
4726 fi
4727
4728 add_cflags $extra_cflags
4729 add_cxxflags $extra_cxxflags
4730 add_objcflags $extra_objcflags
4731 add_asflags $extra_cflags
4732
4733 if test -n "$sysroot"; then
4734     case "$cc_type" in
4735         gcc|llvm_gcc|clang)
4736             add_cppflags --sysroot="$sysroot"
4737             add_ldflags --sysroot="$sysroot"
4738         ;;
4739     esac
4740 fi
4741
4742 if test "$cpu" = host; then
4743     enabled cross_compile &&
4744         die "--cpu=host makes no sense when cross-compiling."
4745
4746     case "$cc_type" in
4747         gcc|llvm_gcc)
4748             check_native(){
4749                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4750                 sed -n "/cc1.*$1=/{
4751                             s/.*$1=\\([^ ]*\\).*/\\1/
4752                             p
4753                             q
4754                         }" $TMPE
4755             }
4756             cpu=$(check_native -march || check_native -mcpu)
4757         ;;
4758         clang)
4759             check_native(){
4760                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4761                 sed -n "/cc1.*-target-cpu /{
4762                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4763                             p
4764                             q
4765                         }" $TMPE
4766             }
4767             cpu=$(check_native -march)
4768         ;;
4769     esac
4770
4771     test "${cpu:-host}" = host &&
4772         die "--cpu=host not supported with compiler $cc"
4773 fi
4774
4775 # Deal with common $arch aliases
4776 case "$arch" in
4777     aarch64|arm64)
4778         arch="aarch64"
4779     ;;
4780     arm*|iPad*|iPhone*)
4781         arch="arm"
4782     ;;
4783     mips*|IP*)
4784         case "$arch" in
4785         *el)
4786             add_cppflags -EL
4787             add_ldflags -EL
4788         ;;
4789         *eb)
4790             add_cppflags -EB
4791             add_ldflags -EB
4792         ;;
4793         esac
4794         arch="mips"
4795     ;;
4796     parisc*|hppa*)
4797         arch="parisc"
4798     ;;
4799     "Power Macintosh"|ppc*|powerpc*)
4800         arch="ppc"
4801     ;;
4802     s390|s390x)
4803         arch="s390"
4804     ;;
4805     sh4|sh)
4806         arch="sh4"
4807     ;;
4808     sun4*|sparc*)
4809         arch="sparc"
4810     ;;
4811     tilegx|tile-gx)
4812         arch="tilegx"
4813     ;;
4814     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4815         arch="x86"
4816     ;;
4817 esac
4818
4819 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4820 enable $arch
4821
4822 # Add processor-specific flags
4823 if enabled aarch64; then
4824
4825     case $cpu in
4826         armv*)
4827             cpuflags="-march=$cpu"
4828         ;;
4829         *)
4830             cpuflags="-mcpu=$cpu"
4831         ;;
4832     esac
4833
4834 elif enabled alpha; then
4835
4836     cpuflags="-mcpu=$cpu"
4837
4838 elif enabled arm; then
4839
4840     check_arm_arch() {
4841         test_cpp_condition stddef.h \
4842             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4843             $cpuflags
4844     }
4845
4846     probe_arm_arch() {
4847         if   check_arm_arch 4;        then echo armv4
4848         elif check_arm_arch 4T;       then echo armv4t
4849         elif check_arm_arch 5;        then echo armv5
4850         elif check_arm_arch 5E;       then echo armv5e
4851         elif check_arm_arch 5T;       then echo armv5t
4852         elif check_arm_arch 5TE;      then echo armv5te
4853         elif check_arm_arch 5TEJ;     then echo armv5te
4854         elif check_arm_arch 6;        then echo armv6
4855         elif check_arm_arch 6J;       then echo armv6j
4856         elif check_arm_arch 6K;       then echo armv6k
4857         elif check_arm_arch 6Z;       then echo armv6z
4858         elif check_arm_arch 6KZ;      then echo armv6zk
4859         elif check_arm_arch 6ZK;      then echo armv6zk
4860         elif check_arm_arch 6T2;      then echo armv6t2
4861         elif check_arm_arch 7;        then echo armv7
4862         elif check_arm_arch 7A  7_A;  then echo armv7-a
4863         elif check_arm_arch 7S;       then echo armv7-a
4864         elif check_arm_arch 7R  7_R;  then echo armv7-r
4865         elif check_arm_arch 7M  7_M;  then echo armv7-m
4866         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4867         elif check_arm_arch 8A  8_A;  then echo armv8-a
4868         fi
4869     }
4870
4871     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4872
4873     case $cpu in
4874         armv*)
4875             cpuflags="-march=$cpu"
4876             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4877         ;;
4878         *)
4879             cpuflags="-mcpu=$cpu"
4880             case $cpu in
4881                 cortex-a*)                               subarch=armv7a  ;;
4882                 cortex-r*)                               subarch=armv7r  ;;
4883                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4884                 arm11*)                                  subarch=armv6   ;;
4885                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4886                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4887                 *)                             subarch=$(probe_arm_arch) ;;
4888             esac
4889         ;;
4890     esac
4891
4892     case "$subarch" in
4893         armv5t*)    enable fast_clz                ;;
4894         armv[6-8]*)
4895             enable fast_clz
4896             disabled fast_unaligned || enable fast_unaligned
4897             ;;
4898     esac
4899
4900 elif enabled avr32; then
4901
4902     case $cpu in
4903         ap7[02]0[0-2])
4904             subarch="avr32_ap"
4905             cpuflags="-mpart=$cpu"
4906         ;;
4907         ap)
4908             subarch="avr32_ap"
4909             cpuflags="-march=$cpu"
4910         ;;
4911         uc3[ab]*)
4912             subarch="avr32_uc"
4913             cpuflags="-mcpu=$cpu"
4914         ;;
4915         uc)
4916             subarch="avr32_uc"
4917             cpuflags="-march=$cpu"
4918         ;;
4919     esac
4920
4921 elif enabled bfin; then
4922
4923     cpuflags="-mcpu=$cpu"
4924
4925 elif enabled mips; then
4926
4927     cpuflags="-march=$cpu"
4928
4929     if [ "$cpu" != "generic" ]; then
4930         disable mips32r2
4931         disable mips32r5
4932         disable mips64r2
4933         disable mips32r6
4934         disable mips64r6
4935         disable loongson2
4936         disable loongson3
4937
4938         case $cpu in
4939             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4940                 enable mips32r2
4941                 disable msa
4942             ;;
4943             p5600|i6400|p6600)
4944                 disable mipsdsp
4945                 disable mipsdspr2
4946             ;;
4947             loongson*)
4948                 enable loongson2
4949                 enable loongson3
4950                 enable local_aligned
4951                 enable simd_align_16
4952                 enable fast_64bit
4953                 enable fast_clz
4954                 enable fast_cmov
4955                 enable fast_unaligned
4956                 disable aligned_stack
4957                 disable mipsdsp
4958                 disable mipsdspr2
4959                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4960                 if [ $cc == gcc ]; then
4961                     gcc_version=$(gcc -dumpversion)
4962                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4963                         expensive_optimization_flag=""
4964                     else
4965                         expensive_optimization_flag="-fno-expensive-optimizations"
4966                     fi
4967                 fi
4968                 case $cpu in
4969                     loongson3*)
4970                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4971                     ;;
4972                     loongson2e)
4973                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4974                     ;;
4975                     loongson2f)
4976                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4977                     ;;
4978                 esac
4979             ;;
4980             *)
4981                 # Unknown CPU. Disable everything.
4982                 warn "unknown CPU. Disabling all MIPS optimizations."
4983                 disable mipsfpu
4984                 disable mipsdsp
4985                 disable mipsdspr2
4986                 disable msa
4987                 disable mmi
4988             ;;
4989         esac
4990
4991         case $cpu in
4992             24kc)
4993                 disable mipsfpu
4994                 disable mipsdsp
4995                 disable mipsdspr2
4996             ;;
4997             24kf*)
4998                 disable mipsdsp
4999                 disable mipsdspr2
5000             ;;
5001             24kec|34kc|1004kc)
5002                 disable mipsfpu
5003                 disable mipsdspr2
5004             ;;
5005             24kef*|34kf*|1004kf*)
5006                 disable mipsdspr2
5007             ;;
5008             74kc)
5009                 disable mipsfpu
5010             ;;
5011             p5600)
5012                 enable mips32r5
5013                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5014             ;;
5015             i6400)
5016                 enable mips64r6
5017                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5018             ;;
5019             p6600)
5020                 enable mips64r6
5021                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5022             ;;
5023         esac
5024     else
5025         # We do not disable anything. Is up to the user to disable the unwanted features.
5026         warn 'generic cpu selected'
5027     fi
5028
5029 elif enabled ppc; then
5030
5031     disable ldbrx
5032
5033     case $(tolower $cpu) in
5034         601|ppc601|powerpc601)
5035             cpuflags="-mcpu=601"
5036             disable altivec
5037         ;;
5038         603*|ppc603*|powerpc603*)
5039             cpuflags="-mcpu=603"
5040             disable altivec
5041         ;;
5042         604*|ppc604*|powerpc604*)
5043             cpuflags="-mcpu=604"
5044             disable altivec
5045         ;;
5046         g3|75*|ppc75*|powerpc75*)
5047             cpuflags="-mcpu=750"
5048             disable altivec
5049         ;;
5050         g4|745*|ppc745*|powerpc745*)
5051             cpuflags="-mcpu=7450"
5052             disable vsx
5053         ;;
5054         74*|ppc74*|powerpc74*)
5055             cpuflags="-mcpu=7400"
5056             disable vsx
5057         ;;
5058         g5|970|ppc970|powerpc970)
5059             cpuflags="-mcpu=970"
5060             disable vsx
5061         ;;
5062         power[3-6]*)
5063             cpuflags="-mcpu=$cpu"
5064             disable vsx
5065         ;;
5066         power[7-8]*)
5067             cpuflags="-mcpu=$cpu"
5068         ;;
5069         cell)
5070             cpuflags="-mcpu=cell"
5071             enable ldbrx
5072             disable vsx
5073         ;;
5074         e500mc)
5075             cpuflags="-mcpu=e500mc"
5076             disable altivec
5077         ;;
5078         e500v2)
5079             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5080             disable altivec
5081             disable dcbzl
5082         ;;
5083         e500)
5084             cpuflags="-mcpu=8540 -mhard-float"
5085             disable altivec
5086             disable dcbzl
5087         ;;
5088     esac
5089
5090 elif enabled sparc; then
5091
5092     case $cpu in
5093         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5094             cpuflags="-mcpu=$cpu"
5095         ;;
5096         ultrasparc*|niagara[234])
5097             cpuflags="-mcpu=$cpu"
5098         ;;
5099     esac
5100
5101 elif enabled x86; then
5102
5103     case $cpu in
5104         i[345]86|pentium)
5105             cpuflags="-march=$cpu"
5106             disable i686
5107             disable mmx
5108         ;;
5109         # targets that do NOT support nopl and conditional mov (cmov)
5110         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5111             cpuflags="-march=$cpu"
5112             disable i686
5113         ;;
5114         # targets that do support nopl and conditional mov (cmov)
5115         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5116         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5117         |amdfam10|barcelona|b[dt]ver*|znver*)
5118             cpuflags="-march=$cpu"
5119             enable i686
5120             enable fast_cmov
5121         ;;
5122         # targets that do support conditional mov but on which it's slow
5123         pentium4|pentium4m|prescott|nocona)
5124             cpuflags="-march=$cpu"
5125             enable i686
5126             disable fast_cmov
5127         ;;
5128     esac
5129
5130 fi
5131
5132 if [ "$cpu" != generic ]; then
5133     add_cflags  $cpuflags
5134     add_asflags $cpuflags
5135     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5136 fi
5137
5138 # compiler sanity check
5139 test_exec <<EOF
5140 int main(void){ return 0; }
5141 EOF
5142 if test "$?" != 0; then
5143     echo "$cc is unable to create an executable file."
5144     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5145         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5146         echo "Only do this if you know what cross compiling means."
5147     fi
5148     die "C compiler test failed."
5149 fi
5150
5151 add_cppflags -D_ISOC99_SOURCE
5152 add_cxxflags -D__STDC_CONSTANT_MACROS
5153 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5154
5155 # some compilers silently accept -std=c11, so we also need to check that the
5156 # version macro is defined properly
5157 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5158     add_cflags -std=c11 ||
5159     check_cflags -std=c99
5160
5161 check_cppflags -D_FILE_OFFSET_BITS=64
5162 check_cppflags -D_LARGEFILE_SOURCE
5163
5164 add_host_cppflags -D_ISOC99_SOURCE
5165 check_host_cflags -std=c99
5166 check_host_cflags -Wall
5167 check_host_cflags $host_cflags_speed
5168
5169 check_64bit(){
5170     arch32=$1
5171     arch64=$2
5172     expr=${3:-'sizeof(void *) > 4'}
5173     test_code cc "" "int test[2*($expr) - 1]" &&
5174         subarch=$arch64 || subarch=$arch32
5175     enable $subarch
5176 }
5177
5178 case "$arch" in
5179     aarch64|alpha|ia64)
5180         enabled shared && enable_weak pic
5181     ;;
5182     mips)
5183         check_64bit mips mips64 '_MIPS_SIM > 1'
5184         enabled shared && enable_weak pic
5185     ;;
5186     parisc)
5187         check_64bit parisc parisc64
5188         enabled shared && enable_weak pic
5189     ;;
5190     ppc)
5191         check_64bit ppc ppc64
5192         enabled shared && enable_weak pic
5193     ;;
5194     s390)
5195         check_64bit s390 s390x
5196         enabled shared && enable_weak pic
5197     ;;
5198     sparc)
5199         check_64bit sparc sparc64
5200         enabled shared && enable_weak pic
5201     ;;
5202     x86)
5203         check_64bit x86_32 x86_64
5204         # Treat x32 as x64 for now. Note it also needs pic if shared
5205         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5206             subarch=x86_64 && enable x86_64 && disable x86_32
5207         if enabled x86_64; then
5208             enabled shared && enable_weak pic
5209             objformat=elf64
5210         fi
5211     ;;
5212 esac
5213
5214 # OS specific
5215 case $target_os in
5216     aix)
5217         SHFLAGS=-shared
5218         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5219         enabled shared && add_ldflags -Wl,-brtl
5220         arflags='-Xany -r -c'
5221         striptype=""
5222         ;;
5223     android)
5224         disable symver
5225         enable section_data_rel_ro
5226         add_cflags -fPIE
5227         add_ldexeflags -fPIE -pie
5228         SLIB_INSTALL_NAME='$(SLIBNAME)'
5229         SLIB_INSTALL_LINKS=
5230         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5231         ;;
5232     haiku)
5233         prefix_default="/boot/common"
5234         network_extralibs="-lnetwork"
5235         host_extralibs=
5236         ;;
5237     sunos)
5238         SHFLAGS='-shared -Wl,-h,$$(@F)'
5239         enabled x86 && append SHFLAGS -mimpure-text
5240         network_extralibs="-lsocket -lnsl"
5241         add_cppflags -D__EXTENSIONS__
5242         # When using suncc to build, the Solaris linker will mark
5243         # an executable with each instruction set encountered by
5244         # the Solaris assembler.  As our libraries contain their own
5245         # guards for processor-specific code, instead suppress
5246         # generation of the HWCAPS ELF section on Solaris x86 only.
5247         enabled_all suncc x86 &&
5248             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5249             add_ldflags -Wl,-M,mapfile
5250         nm_default='nm -P -g'
5251         striptype=""
5252         version_script='-M'
5253         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5254         ;;
5255     netbsd)
5256         disable symver
5257         oss_indev_extralibs="-lossaudio"
5258         oss_outdev_extralibs="-lossaudio"
5259         enabled gcc || check_ldflags -Wl,-zmuldefs
5260         ;;
5261     openbsd|bitrig)
5262         disable symver
5263         striptype=""
5264         SHFLAGS='-shared'
5265         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5266         SLIB_INSTALL_LINKS=
5267         oss_indev_extralibs="-lossaudio"
5268         oss_outdev_extralibs="-lossaudio"
5269         ;;
5270     dragonfly)
5271         disable symver
5272         ;;
5273     freebsd)
5274         ;;
5275     bsd/os)
5276         add_extralibs -lpoll -lgnugetopt
5277         strip="strip -d"
5278         ;;
5279     darwin)
5280         enabled ppc && add_asflags -force_cpusubtype_ALL
5281         install_name_dir_default='$(SHLIBDIR)'
5282         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5283         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5284         strip="${strip} -x"
5285         add_ldflags -Wl,-dynamic,-search_paths_first
5286         check_cflags -Werror=partial-availability
5287         SLIBSUF=".dylib"
5288         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5289         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5290         enabled x86_64 && objformat="macho64" || objformat="macho32"
5291         enabled_any pic shared x86_64 ||
5292             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5293         check_headers dispatch/dispatch.h &&
5294             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5295         if test -n "$sysroot"; then
5296             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5297             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5298         fi
5299         version_script='-exported_symbols_list'
5300         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5301         ;;
5302     msys*)
5303         die "Native MSYS builds are discouraged, please use the MINGW environment."
5304         ;;
5305     mingw32*|mingw64*)
5306         target_os=mingw32
5307         LIBTARGET=i386
5308         if enabled x86_64; then
5309             LIBTARGET="i386:x86-64"
5310         elif enabled arm; then
5311             LIBTARGET="arm"
5312         elif enabled aarch64; then
5313             LIBTARGET="arm64"
5314         fi
5315         if enabled shared; then
5316             # Cannot build both shared and static libs when using dllimport.
5317             disable static
5318         fi
5319         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5320         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5321         shlibdir_default="$bindir_default"
5322         SLIBPREF=""
5323         SLIBSUF=".dll"
5324         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5325         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5326         if test_cmd lib.exe -list; then
5327             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5328             if enabled x86_64; then
5329                 LIBTARGET=x64
5330             fi
5331         else
5332             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5333         fi
5334         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5335         SLIB_INSTALL_LINKS=
5336         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5337         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5338         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5339         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5340         enabled x86_64 && objformat="win64" || objformat="win32"
5341         dlltool="${cross_prefix}dlltool"
5342         ranlib=:
5343         enable dos_paths
5344         check_ldflags -Wl,--nxcompat,--dynamicbase
5345         # Lets work around some stupidity in binutils.
5346         # ld will strip relocations from executables even though we need them
5347         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5348         # however ld then forgets what the entry point should be (oops) so we
5349         # have to manually (re)set it.
5350         if enabled x86_32; then
5351             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5352         elif enabled x86_64; then
5353             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5354             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5355             # Set image base >4GB for extra entropy with HEASLR
5356             add_ldexeflags -Wl,--image-base,0x140000000
5357             append SHFLAGS -Wl,--image-base,0x180000000
5358         fi
5359         ;;
5360     win32|win64)
5361         disable symver
5362         if enabled shared; then
5363             # Link to the import library instead of the normal static library
5364             # for shared libs.
5365             LD_LIB='%.lib'
5366             # Cannot build both shared and static libs with MSVC or icl.
5367             disable static
5368         fi
5369         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5370         shlibdir_default="$bindir_default"
5371         SLIBPREF=""
5372         SLIBSUF=".dll"
5373         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5374         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5375         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5376         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5377         SLIB_INSTALL_LINKS=
5378         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5379         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5380         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5381         enabled x86_64 && objformat="win64" || objformat="win32"
5382         ranlib=:
5383         enable dos_paths
5384         ;;
5385     cygwin*)
5386         target_os=cygwin
5387         shlibdir_default="$bindir_default"
5388         SLIBPREF="cyg"
5389         SLIBSUF=".dll"
5390         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5391         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5392         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5393         SLIB_INSTALL_LINKS=
5394         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5395         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5396         enabled x86_64 && objformat="win64" || objformat="win32"
5397         enable dos_paths
5398         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5399         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5400         ;;
5401     *-dos|freedos|opendos)
5402         network_extralibs="-lsocket"
5403         objformat="coff"
5404         enable dos_paths
5405         ;;
5406     linux)
5407         enable section_data_rel_ro
5408         enabled_any arm aarch64 && enable_weak linux_perf
5409         ;;
5410     irix*)
5411         target_os=irix
5412         ranlib="echo ignoring ranlib"
5413         ;;
5414     os/2*)
5415         strip="lxlite -CS"
5416         striptype=""
5417         objformat="aout"
5418         add_cppflags -D_GNU_SOURCE
5419         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5420         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5421         LIBSUF="_s.a"
5422         SLIBPREF=""
5423         SLIBSUF=".dll"
5424         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5425         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5426         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5427             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5428             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5429             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5430             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5431         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5432             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5433         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5434         SLIB_INSTALL_LINKS=
5435         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5436         enable dos_paths
5437         enable_weak os2threads
5438         ;;
5439     gnu/kfreebsd)
5440         add_cppflags -D_BSD_SOURCE
5441         ;;
5442     gnu)
5443         ;;
5444     qnx)
5445         add_cppflags -D_QNX_SOURCE
5446         network_extralibs="-lsocket"
5447         ;;
5448     symbian)
5449         SLIBSUF=".dll"
5450         enable dos_paths
5451         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5452         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5453         add_ldflags -Wl,--target1-abs,--no-undefined \
5454                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5455                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5456         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5457                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5458                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5459         ;;
5460     minix)
5461         ;;
5462     none)
5463         ;;
5464     *)
5465         die "Unknown OS '$target_os'."
5466         ;;
5467 esac
5468
5469 # test if creating links works
5470 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5471 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5472 mkdir "$link_dest"
5473 $ln_s "$link_dest" "$link_name"
5474 touch "$link_dest/test_file"
5475 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5476     # create link to source path
5477     [ -e src ] && rm src
5478     $ln_s "$source_path" src
5479     source_link=src
5480 else
5481     # creating directory links doesn't work
5482     # fall back to using the full source path
5483     source_link="$source_path"
5484 fi
5485 # cleanup
5486 rm -r "$link_dest"
5487 rm -r "$link_name"
5488
5489 # determine libc flavour
5490
5491 probe_libc(){
5492     pfx=$1
5493     pfx_no_=${pfx%_}
5494     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5495     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5496         eval ${pfx}libc_type=uclibc
5497         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5498     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5499         eval ${pfx}libc_type=glibc
5500         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5501     # MinGW headers can be installed on Cygwin, so check for newlib first.
5502     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5503         eval ${pfx}libc_type=newlib
5504         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5505     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5506     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5507         eval ${pfx}libc_type=mingw64
5508         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5509             add_compat msvcrt/snprintf.o
5510             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5511         fi
5512         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5513         eval test \$${pfx_no_}cc_type = "gcc" &&
5514             add_${pfx}cppflags -D__printf__=__gnu_printf__
5515         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5516             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5517         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5518     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5519          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5520         eval ${pfx}libc_type=mingw32
5521         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5522             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5523             die "ERROR: MinGW32 runtime version must be >= 3.15."
5524         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5525         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5526             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5527         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5528             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5529         eval test \$${pfx_no_}cc_type = "gcc" &&
5530             add_${pfx}cppflags -D__printf__=__gnu_printf__
5531         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5532     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5533         eval ${pfx}libc_type=msvcrt
5534         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5535             if [ "$pfx" = host_ ]; then
5536                 add_host_cppflags -Dsnprintf=_snprintf
5537             else
5538                 add_compat strtod.o strtod=avpriv_strtod
5539                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5540                                              _snprintf=avpriv_snprintf  \
5541                                              vsnprintf=avpriv_vsnprintf
5542             fi
5543         fi
5544         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5545         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5546         # 0x601 by default unless something else is set by the user.
5547         # This can easily lead to us detecting functions only present
5548         # in such new versions and producing binaries requiring windows 7.0.
5549         # Therefore explicitly set the default to Vista unless the user has
5550         # set something else on the command line.
5551         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5552         # family. For these cases, configure is free to use any functions
5553         # found in the SDK headers by default. (Alternatively, we could force
5554         # _WIN32_WINNT to 0x0602 in that case.)
5555         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5556             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5557 #ifdef WINAPI_FAMILY
5558 #include <winapifamily.h>
5559 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5560 #error not desktop
5561 #endif
5562 #endif
5563 EOF
5564         if [ "$pfx" = "" ]; then
5565             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5566             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5567         fi
5568     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5569         eval ${pfx}libc_type=klibc
5570     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5571         eval ${pfx}libc_type=bionic
5572     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5573         eval ${pfx}libc_type=solaris
5574         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5575     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5576         eval ${pfx}libc_type=djgpp
5577         add_cppflags -U__STRICT_ANSI__
5578         add_cflags "-include $source_path/compat/djgpp/math.h"
5579         add_compat djgpp/math.o
5580     fi
5581     test_${pfx}cc <<EOF
5582 #include <time.h>
5583 void *v = localtime_r;
5584 EOF
5585 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5586 #include <time.h>
5587 void *v = localtime_r;
5588 EOF
5589
5590     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5591 }
5592
5593 probe_libc
5594 probe_libc host_
5595
5596 # hacks for compiler/libc/os combinations
5597
5598 case $libc_type in
5599     bionic)
5600         add_compat strtod.o strtod=avpriv_strtod
5601         ;;
5602 esac
5603
5604 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5605     add_cppflags '-I\$(SRC_PATH)/compat/float'
5606
5607 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5608
5609 set_default libdir
5610 : ${shlibdir_default:="$libdir"}
5611 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5612
5613 set_default $PATHS_LIST
5614 set_default nm
5615
5616 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5617
5618 enable_weak_pic() {
5619     disabled pic && return
5620     enable pic
5621     add_cppflags -DPIC
5622     case "$target_os" in
5623     mingw*|cygwin*|win*)
5624         ;;
5625     *)
5626         add_cflags -fPIC
5627         add_asflags -fPIC
5628         ;;
5629     esac
5630 }
5631
5632 enabled pic && enable_weak_pic
5633
5634 test_cc <<EOF || die "Symbol mangling check failed."
5635 int ff_extern;
5636 EOF
5637 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5638 extern_prefix=${sym%%ff_extern*}
5639
5640 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5641
5642 for restrict_keyword in restrict __restrict__ __restrict ""; do
5643     test_code cc "" "char * $restrict_keyword p" && break
5644 done
5645
5646 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5647
5648 # The global variable ensures the bits appear unchanged in the object file.
5649 test_cc <<EOF || die "endian test failed"
5650 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5651 EOF
5652 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5653
5654 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5655
5656 if ! enabled ppc64 || enabled bigendian; then
5657     disable vsx
5658 fi
5659
5660 check_gas() {
5661     log "check_gas using '$as' as AS"
5662     # :vararg is used on aarch64, arm and ppc altivec
5663     check_as vararg "
5664 .macro m n, y:vararg=0
5665 \n: .int \y
5666 .endm
5667 m x" || return 1
5668     # .altmacro is only used in arm asm
5669     ! enabled arm || check_as gnu_as ".altmacro"
5670 }
5671
5672 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5673     nogas=:
5674     enabled_any arm aarch64 && nogas=die
5675     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5676     as_noop=-v
5677
5678     case $as_type in
5679         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5680         gcc)  gaspp_as_type=gas ;;
5681         *)    gaspp_as_type=$as_type ;;
5682     esac
5683
5684     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5685
5686     test "${as#*gas-preprocessor.pl}" != "$as" ||
5687     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5688         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5689
5690     if ! check_gas ; then
5691         as=${gas:=$as}
5692         check_gas || \
5693             $nogas "GNU assembler not found, install/update gas-preprocessor"
5694     fi
5695
5696     check_as as_func ".func test
5697                       .endfunc"
5698 fi
5699
5700 check_inline_asm inline_asm_labels '"1:\n"'
5701
5702 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5703
5704 if enabled aarch64; then
5705     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5706     # internal assembler in clang 3.3 does not support this instruction
5707     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5708     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5709
5710     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5711
5712 elif enabled alpha; then
5713
5714     check_cflags -mieee
5715
5716 elif enabled arm; then
5717
5718     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5719     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5720 float func(float a, float b){ return a+b; }
5721 EOF
5722     enabled thumb && check_cflags -mthumb || check_cflags -marm
5723
5724     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5725         :
5726     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5727         :
5728     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5729         case "${cross_prefix:-$cc}" in
5730             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5731             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5732 __asm__ (".eabi_attribute 28, 1");
5733 int main(void) { return 0; }
5734 EOF
5735         esac
5736         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5737     fi
5738
5739     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5740     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5741     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5742     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5743     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5744     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5745     enabled setend  && check_insn setend  'setend be'
5746
5747     [ $target_os = linux ] || [ $target_os = android ] ||
5748         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5749             $ARCH_EXT_LIST_ARM
5750
5751     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5752
5753     check_as as_arch_directive ".arch armv7-a"
5754     check_as as_dn_directive   "ra .dn d0.i16"
5755     check_as as_fpu_directive  ".fpu neon"
5756
5757     # llvm's integrated assembler supports .object_arch from llvm 3.5
5758     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5759         check_as as_object_arch ".object_arch armv4"
5760
5761     # MS armasm fails to assemble our PIC constructs
5762     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5763
5764 elif enabled mips; then
5765
5766     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5767     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5768     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5769
5770     # Enable minimum ISA based on selected options
5771     if enabled mips64; then
5772         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5773         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5774         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5775     else
5776         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5777         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5778         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5779         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5780     fi
5781
5782     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5783     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5784     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5785     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5786     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5787     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5788
5789     if enabled bigendian && enabled msa; then
5790         disable msa
5791     fi
5792
5793 elif enabled parisc; then
5794
5795     if enabled gcc; then
5796         case $($cc -dumpversion) in
5797             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5798         esac
5799     fi
5800
5801 elif enabled ppc; then
5802
5803     enable local_aligned
5804
5805     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5806     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5807     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5808     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5809
5810     if enabled altivec; then
5811         check_cflags -maltivec -mabi=altivec
5812
5813         # check if our compiler supports Motorola AltiVec C API
5814         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5815                                     vector signed int v2 = (vector signed int) { 1 };
5816                                     v1 = vec_add(v1, v2);"
5817
5818         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5819     fi
5820
5821     if enabled vsx; then
5822         check_cflags -mvsx &&
5823         check_cc vsx altivec.h "int v[4] = { 0 };
5824                                 vector signed int v1 = vec_vsx_ld(0, v);"
5825     fi
5826
5827     if enabled power8; then
5828         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5829     fi
5830
5831 elif enabled x86; then
5832
5833     check_builtin rdtsc    intrin.h   "__rdtsc()"
5834     check_builtin mm_empty mmintrin.h "_mm_empty()"
5835
5836     enable local_aligned
5837
5838     # check whether EBP is available on x86
5839     # As 'i' is stored on the stack, this program will crash
5840     # if the base pointer is used to access it because the
5841     # base pointer is cleared in the inline assembly code.
5842     check_exec_crash <<EOF && enable ebp_available
5843 volatile int i=0;
5844 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5845 return i;
5846 EOF
5847
5848     # check whether EBX is available on x86
5849     check_inline_asm ebx_available '""::"b"(0)' &&
5850         check_inline_asm ebx_available '"":::"%ebx"'
5851
5852     # check whether xmm clobbers are supported
5853     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5854
5855     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5856         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5857
5858     # check whether binutils is new enough to compile SSSE3/MMXEXT
5859     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5860     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5861
5862     probe_x86asm(){
5863         x86asmexe_probe=$1
5864         if test_cmd $x86asmexe_probe -v; then
5865             x86asmexe=$x86asmexe_probe
5866             x86asm_type=nasm
5867             x86asm_debug="-g -F dwarf"
5868             X86ASMDEP=
5869             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5870         elif test_cmd $x86asmexe_probe --version; then
5871             x86asmexe=$x86asmexe_probe
5872             x86asm_type=yasm
5873             x86asm_debug="-g dwarf2"
5874             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5875             X86ASM_DEPFLAGS=
5876         fi
5877         check_x86asm x86asm "movbe ecx, [5]"
5878     }
5879
5880     if ! disabled_any asm mmx x86asm; then
5881         disable x86asm
5882         for program in $x86asmexe nasm yasm; do
5883             probe_x86asm $program && break
5884         done
5885         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5886         X86ASMFLAGS="-f $objformat"
5887         enabled pic               && append X86ASMFLAGS "-DPIC"
5888         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5889         case "$objformat" in
5890             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5891         esac
5892
5893         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5894         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5895         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5896         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5897         check_x86asm cpunop          "CPU amdnop"
5898     fi
5899
5900     case "$cpu" in
5901         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5902             disable fast_clz
5903         ;;
5904     esac
5905
5906 fi
5907
5908 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5909
5910 check_ldflags -Wl,--as-needed
5911 check_ldflags -Wl,-z,noexecstack
5912
5913 if ! disabled network; then
5914     check_func getaddrinfo $network_extralibs
5915     check_func inet_aton $network_extralibs
5916
5917     check_type netdb.h "struct addrinfo"
5918     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5919     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5920     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5921     check_type poll.h "struct pollfd"
5922     check_type netinet/sctp.h "struct sctp_event_subscribe"
5923     check_struct "sys/socket.h" "struct msghdr" msg_flags
5924     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5925     check_type netinet/in.h "struct sockaddr_in6"
5926     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5927     check_type "sys/types.h sys/socket.h" socklen_t
5928
5929     # Prefer arpa/inet.h over winsock2
5930     if check_headers arpa/inet.h ; then
5931         check_func closesocket
5932     elif check_headers winsock2.h ; then
5933         check_func_headers winsock2.h closesocket -lws2 &&
5934             network_extralibs="-lws2" ||
5935         { check_func_headers winsock2.h closesocket -lws2_32 &&
5936             network_extralibs="-lws2_32"; } || disable winsock2_h network
5937         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5938
5939         check_type ws2tcpip.h socklen_t
5940         check_type ws2tcpip.h "struct addrinfo"
5941         check_type ws2tcpip.h "struct group_source_req"
5942         check_type ws2tcpip.h "struct ip_mreq_source"
5943         check_type ws2tcpip.h "struct ipv6_mreq"
5944         check_type winsock2.h "struct pollfd"
5945         check_struct winsock2.h "struct sockaddr" sa_len
5946         check_type ws2tcpip.h "struct sockaddr_in6"
5947         check_type ws2tcpip.h "struct sockaddr_storage"
5948     else
5949         disable network
5950     fi
5951 fi
5952
5953 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5954 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5955 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5956 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5957 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5958 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5959 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5960
5961 case "$custom_allocator" in
5962     jemalloc)
5963         # jemalloc by default does not use a prefix
5964         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5965     ;;
5966     tcmalloc)
5967         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5968         malloc_prefix=tc_
5969     ;;
5970 esac
5971
5972 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5973 check_func  ${malloc_prefix}memalign            && enable memalign
5974 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5975
5976 check_func  access
5977 check_func_headers stdlib.h arc4random
5978 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5979 check_func  fcntl
5980 check_func  fork
5981 check_func  gethrtime
5982 check_func  getopt
5983 check_func  getrusage
5984 check_func  gettimeofday
5985 check_func  isatty
5986 check_func  mkstemp
5987 check_func  mmap
5988 check_func  mprotect
5989 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5990 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
5991 check_func  sched_getaffinity
5992 check_func  setrlimit
5993 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5994 check_func  strerror_r
5995 check_func  sysconf
5996 check_func  sysctl
5997 check_func  usleep
5998
5999 check_func_headers conio.h kbhit
6000 check_func_headers io.h setmode
6001 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6002 check_func_headers mach/mach_time.h mach_absolute_time
6003 check_func_headers stdlib.h getenv
6004 check_func_headers sys/stat.h lstat
6005
6006 check_func_headers windows.h GetProcessAffinityMask
6007 check_func_headers windows.h GetProcessTimes
6008 check_func_headers windows.h GetSystemTimeAsFileTime
6009 check_func_headers windows.h LoadLibrary
6010 check_func_headers windows.h MapViewOfFile
6011 check_func_headers windows.h PeekNamedPipe
6012 check_func_headers windows.h SetConsoleTextAttribute
6013 check_func_headers windows.h SetConsoleCtrlHandler
6014 check_func_headers windows.h Sleep
6015 check_func_headers windows.h VirtualAlloc
6016 check_func_headers glob.h glob
6017 enabled xlib &&
6018     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6019
6020 check_headers direct.h
6021 check_headers dirent.h
6022 check_headers dxgidebug.h
6023 check_headers dxva.h
6024 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6025 check_headers io.h
6026 check_headers linux/perf_event.h
6027 check_headers libcrystalhd/libcrystalhd_if.h
6028 check_headers malloc.h
6029 check_headers net/udplite.h
6030 check_headers poll.h
6031 check_headers sys/param.h
6032 check_headers sys/resource.h
6033 check_headers sys/select.h
6034 check_headers sys/time.h
6035 check_headers sys/un.h
6036 check_headers termios.h
6037 check_headers unistd.h
6038 check_headers valgrind/valgrind.h
6039 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6040 check_headers windows.h
6041 check_headers X11/extensions/XvMClib.h
6042 check_headers asm/types.h
6043
6044 # it seems there are versions of clang in some distros that try to use the
6045 # gcc headers, which explodes for stdatomic
6046 # so we also check that atomics actually work here
6047 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6048
6049 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6050 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6051     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6052 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6053 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6054 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6055
6056 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6057 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6058 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6059
6060 enabled appkit       && check_apple_framework AppKit
6061 enabled audiotoolbox && check_apple_framework AudioToolbox
6062 enabled avfoundation && check_apple_framework AVFoundation
6063 enabled coreimage    && check_apple_framework CoreImage
6064 enabled videotoolbox && check_apple_framework VideoToolbox
6065
6066 check_apple_framework CoreFoundation
6067 check_apple_framework CoreMedia
6068 check_apple_framework CoreVideo
6069
6070 enabled avfoundation && {
6071     disable coregraphics applicationservices
6072     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6073     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6074
6075 enabled videotoolbox && {
6076     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6077     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6078     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6079     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6080     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6081     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6082 }
6083
6084 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6085
6086 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6087 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6088 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6089 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6090 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6091
6092 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6093
6094 if [ -z "$nvccflags" ]; then
6095     nvccflags=$nvccflags_default
6096 fi
6097
6098 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6099     nvccflags="$nvccflags -m64"
6100 else
6101     nvccflags="$nvccflags -m32"
6102 fi
6103
6104 if enabled cuda_nvcc; then
6105     nvccflags="$nvccflags -ptx"
6106 else
6107     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6108     check_nvcc cuda_llvm
6109 fi
6110
6111 if ! disabled ffnvcodec; then
6112     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6113     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6114       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6115       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6116       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6117 fi
6118
6119 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6120
6121 if ! disabled w32threads && ! enabled pthreads; then
6122     check_func_headers "windows.h process.h" _beginthreadex &&
6123         check_type "windows.h" CONDITION_VARIABLE &&
6124         check_type "windows.h" INIT_ONCE &&
6125         enable w32threads || disable w32threads
6126     if ! enabled w32threads && enabled winrt; then
6127         check_func_headers "windows.h" CreateThread &&
6128             enable w32threads || disable w32threads
6129     fi
6130 fi
6131
6132 # check for some common methods of building with pthread support
6133 # do this before the optional library checks as some of them require pthreads
6134 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6135     if check_lib pthreads pthread.h pthread_join   -pthread &&
6136        check_lib pthreads pthread.h pthread_create -pthread; then
6137         add_cflags -pthread
6138     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6139          check_lib pthreads pthread.h pthread_create -pthreads; then
6140         add_cflags -pthreads
6141     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6142          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6143         add_cflags -ldl -pthread
6144     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6145          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6146         :
6147     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6148          check_lib pthreads pthread.h pthread_create -lpthread; then
6149         :
6150     elif check_func pthread_join && check_func pthread_create; then
6151         enable pthreads
6152     fi
6153     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6154
6155     if enabled pthreads; then
6156         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6157         check_func pthread_cancel $pthreads_extralibs
6158     fi
6159 fi
6160
6161 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6162                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6163 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6164 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6165
6166 # On some systems dynamic loading requires no extra linker flags
6167 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6168
6169 check_lib libm math.h sin -lm
6170
6171 atan2f_args=2
6172 copysign_args=2
6173 hypot_args=2
6174 ldexpf_args=2
6175 powf_args=2
6176
6177 for func in $MATH_FUNCS; do
6178     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6179 done
6180
6181 for func in $COMPLEX_FUNCS; do
6182     eval check_complexfunc $func \${${func}_args:-1}
6183 done
6184
6185 # these are off by default, so fail if requested and not available
6186 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6187 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6188 enabled decklink          && { require_headers DeckLinkAPI.h &&
6189                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6190 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6191 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6192 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6193 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6194 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6195 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6196 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6197                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6198                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6199 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6200 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6201 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6202 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6203 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6204 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6205                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6206                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6207 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6208 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6209 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6210 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6211 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6212 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6213 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6214                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6215                                  warn "using libfdk without pkg-config"; } }
6216 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"
6217 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6218 enabled fontconfig        && enable libfontconfig
6219 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6220 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6221 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6222 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6223                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6224 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6225                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6226                                done || die "ERROR: libgsm not found"; }
6227 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6228 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6229 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6230 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6231 # While it may appear that require is being used as a pkg-config
6232 # fallback for libmfx, it is actually being used to detect a different
6233 # installation route altogether.  If libmfx is installed via the Intel
6234 # Media SDK or Intel Media Server Studio, these don't come with
6235 # pkg-config support.  Instead, users should make sure that the build
6236 # can find the libraries and headers through other means.
6237 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6238                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6239 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6240 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6241 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_load ||
6242                                require libmysofa mysofa.h mysofa_load -lmysofa $zlib_extralibs; }
6243 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6244                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6245                                die "ERROR: libnpp not found"; }
6246 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6247 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6248 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6249                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6250                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6251                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6252 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6253 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6254                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6255 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6256 enabled libopus           && {
6257     enabled libopus_decoder && {
6258         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6259     }
6260     enabled libopus_encoder && {
6261         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6262     }
6263 }
6264 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6265 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6266 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6267 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6268 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6269 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6270                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6271 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6272 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6273 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6274 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6275 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6276 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6277 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6278 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6279 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6280 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6281                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6282                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6283 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6284 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6285 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6286 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6287 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6288                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6289
6290 enabled libvpx            && {
6291     enabled libvpx_vp8_decoder && {
6292         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6293             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"
6294     }
6295     enabled libvpx_vp8_encoder && {
6296         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6297             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"
6298     }
6299     enabled libvpx_vp9_decoder && {
6300         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6301             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"
6302     }
6303     enabled libvpx_vp9_encoder && {
6304         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6305             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"
6306     }
6307     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6308         die "libvpx enabled but no supported decoders found"
6309     fi
6310 }
6311
6312 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6313 enabled libwebp           && {
6314     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6315     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6316 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6317                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6318                                  warn "using libx264 without pkg-config"; } } &&
6319                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6320                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6321 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6322                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6323 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6324 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6325 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6326 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6327 enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
6328 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6329                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6330                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6331 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6332 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6333                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6334                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6335                                die "ERROR: mbedTLS not found"; }
6336 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6337 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6338                                { ! enabled cross_compile &&
6339                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6340                                  add_ldflags -L/opt/vc/lib/ &&
6341                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6342                                die "ERROR: mmal not found" &&
6343                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6344 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6345                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6346                                die "ERROR: openal not found"; } &&
6347                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6348                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6349 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6350                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6351                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6352                                die "ERROR: opencl not found"; } &&
6353                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6354                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6355                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6356 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6357                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6358                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6359                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6360                                die "ERROR: opengl not found."
6361                              }
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 omx               && require_headers OMX_Core.h
6366 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6367                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6368                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6369                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6370                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6371                                die "ERROR: openssl not found"; }
6372 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6373 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6374                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6375                                { enabled libdrm ||
6376                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6377                              }
6378 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6379
6380
6381 if enabled gcrypt; then
6382     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6383     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6384         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6385         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6386         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6387             die "ERROR: gcrypt not found"
6388         add_cflags $gcrypt_cflags
6389     else
6390         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6391     fi
6392 fi
6393
6394 if enabled sdl2; then
6395     SDL2_CONFIG="${cross_prefix}sdl2-config"
6396     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6397     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6398         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6399         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6400         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6401         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6402         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6403             enable sdl2
6404     fi
6405     if test $target_os = "mingw32"; then
6406         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6407     fi
6408 fi
6409
6410 if enabled decklink; then
6411     case $target_os in
6412         mingw32*|mingw64*|win32|win64)
6413             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6414             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6415             ;;
6416     esac
6417 fi
6418
6419 enabled securetransport &&
6420     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6421     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6422         disable securetransport
6423
6424 enabled securetransport &&
6425     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6426
6427 enabled schannel &&
6428     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6429     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6430     schannel_extralibs="-lsecur32" ||
6431         disable schannel
6432
6433 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6434 enabled makeinfo \
6435     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6436     && enable makeinfo_html || disable makeinfo_html
6437 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6438 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6439 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6440 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6441
6442 # check V4L2 codecs available in the API
6443 check_headers linux/fb.h
6444 check_headers linux/videodev2.h
6445 test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6446 check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6447 check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6448 check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6449 check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6450 check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6451 check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6452 check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6453 check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6454 check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6455 check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6456
6457 check_headers sys/videoio.h
6458 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6459
6460 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6461 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6462 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6463 # w32api 3.12 had it defined wrong
6464 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6465
6466 check_type "dshow.h" IBaseFilter
6467
6468 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6469 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6470     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6471     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6472     check_headers "dev/ic/bt8xx.h"
6473
6474 if check_struct sys/soundcard.h audio_buf_info bytes; then
6475     enable_sanitized sys/soundcard.h
6476 else
6477     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6478     #include <sys/soundcard.h>
6479     audio_buf_info abc;
6480 EOF
6481 fi
6482
6483 enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6484     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
6485
6486 enabled libjack &&
6487     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6488
6489 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6490
6491 if enabled libcdio; then
6492     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6493     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6494     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6495     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6496     die "ERROR: No usable libcdio/cdparanoia found"
6497 fi
6498
6499 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6500     disable libxcb_shm libxcb_shape libxcb_xfixes
6501
6502 if enabled libxcb; then
6503     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6504     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6505     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6506 fi
6507
6508 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6509
6510 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6511 # the desktop api partition
6512 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6513 #ifdef WINAPI_FAMILY
6514 #include <winapifamily.h>
6515 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6516 #error desktop, not uwp
6517 #else
6518 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6519 #endif
6520 #else
6521 #error no family set
6522 #endif
6523 EOF
6524
6525 enabled vaapi &&
6526     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6527
6528 if enabled vaapi; then
6529     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6530
6531     if enabled xlib; then
6532         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6533     fi
6534
6535     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6536
6537     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6538     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6539     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6540     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6541     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6542     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6543     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6544 fi
6545
6546 if enabled_all opencl libdrm ; then
6547     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6548         enable opencl_drm_beignet
6549     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6550         enable opencl_drm_arm
6551 fi
6552
6553 if enabled_all opencl vaapi ; then
6554     if enabled opencl_drm_beignet ; then
6555         enable opencl_vaapi_beignet
6556     else
6557         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6558             enable opencl_vaapi_intel_media
6559     fi
6560 fi
6561
6562 if enabled_all opencl dxva2 ; then
6563     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6564         enable opencl_dxva2
6565 fi
6566
6567 if enabled_all opencl d3d11va ; then
6568     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6569         enable opencl_d3d11
6570 fi
6571
6572 enabled vdpau &&
6573     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6574
6575 enabled vdpau &&
6576     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6577
6578 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6579
6580 if enabled x86; then
6581     case $target_os in
6582         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6583             ;;
6584         *)
6585             disable ffnvcodec cuvid nvdec nvenc
6586             ;;
6587     esac
6588 elif enabled ppc64 && ! enabled bigendian; then
6589     case $target_os in
6590         linux)
6591             ;;
6592         *)
6593             disable ffnvcodec cuvid nvdec nvenc
6594             ;;
6595     esac
6596 else
6597     disable ffnvcodec cuvid nvdec nvenc
6598 fi
6599
6600 enabled ffnvcodec && enable cuda
6601
6602 enabled nvenc &&
6603     test_cc -I$source_path <<EOF || disable nvenc
6604 #include <ffnvcodec/nvEncodeAPI.h>
6605 NV_ENCODE_API_FUNCTION_LIST flist;
6606 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6607 int main(void) { return 0; }
6608 EOF
6609
6610 enabled amf &&
6611     check_cpp_condition amf "AMF/core/Version.h" \
6612         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
6613
6614 # Funny iconv installations are not unusual, so check it after all flags have been set
6615 if enabled libc_iconv; then
6616     check_func_headers iconv.h iconv
6617 elif enabled iconv; then
6618     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6619 fi
6620
6621 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6622
6623 # add some useful compiler flags if supported
6624 check_cflags -Wdeclaration-after-statement
6625 check_cflags -Wall
6626 check_cflags -Wdisabled-optimization
6627 check_cflags -Wpointer-arith
6628 check_cflags -Wredundant-decls
6629 check_cflags -Wwrite-strings
6630 check_cflags -Wtype-limits
6631 check_cflags -Wundef
6632 check_cflags -Wmissing-prototypes
6633 check_cflags -Wno-pointer-to-int-cast
6634 check_cflags -Wstrict-prototypes
6635 check_cflags -Wempty-body
6636
6637 if enabled extra_warnings; then
6638     check_cflags -Wcast-qual
6639     check_cflags -Wextra
6640     check_cflags -Wpedantic
6641 fi
6642
6643 check_disable_warning(){
6644     warning_flag=-W${1#-Wno-}
6645     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6646 }
6647
6648 test_cflags -Werror=unused-command-line-argument &&
6649     append unknown_warning_flags "-Werror=unused-command-line-argument"
6650 test_cflags -Werror=unknown-warning-option &&
6651     append unknown_warning_flags "-Werror=unknown-warning-option"
6652
6653 check_disable_warning -Wno-parentheses
6654 check_disable_warning -Wno-switch
6655 check_disable_warning -Wno-format-zero-length
6656 check_disable_warning -Wno-pointer-sign
6657 check_disable_warning -Wno-unused-const-variable
6658 check_disable_warning -Wno-bool-operation
6659 check_disable_warning -Wno-char-subscripts
6660
6661 check_disable_warning_headers(){
6662     warning_flag=-W${1#-Wno-}
6663     test_cflags $warning_flag && add_cflags_headers $1
6664 }
6665
6666 check_disable_warning_headers -Wno-deprecated-declarations
6667 check_disable_warning_headers -Wno-unused-variable
6668
6669 test_cc <<EOF && enable blocks_extension
6670 void (^block)(void);
6671 EOF
6672
6673 # add some linker flags
6674 check_ldflags -Wl,--warn-common
6675 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6676 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6677 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6678
6679 # add some strip flags
6680 check_stripflags -x
6681
6682 enabled neon_clobber_test &&
6683     check_ldflags -Wl,--wrap,avcodec_open2              \
6684                   -Wl,--wrap,avcodec_decode_audio4      \
6685                   -Wl,--wrap,avcodec_decode_video2      \
6686                   -Wl,--wrap,avcodec_decode_subtitle2   \
6687                   -Wl,--wrap,avcodec_encode_audio2      \
6688                   -Wl,--wrap,avcodec_encode_video2      \
6689                   -Wl,--wrap,avcodec_encode_subtitle    \
6690                   -Wl,--wrap,avcodec_send_packet        \
6691                   -Wl,--wrap,avcodec_receive_packet     \
6692                   -Wl,--wrap,avcodec_send_frame         \
6693                   -Wl,--wrap,avcodec_receive_frame      \
6694                   -Wl,--wrap,swr_convert                \
6695                   -Wl,--wrap,avresample_convert ||
6696     disable neon_clobber_test
6697
6698 enabled xmm_clobber_test &&
6699     check_ldflags -Wl,--wrap,avcodec_open2              \
6700                   -Wl,--wrap,avcodec_decode_audio4      \
6701                   -Wl,--wrap,avcodec_decode_video2      \
6702                   -Wl,--wrap,avcodec_decode_subtitle2   \
6703                   -Wl,--wrap,avcodec_encode_audio2      \
6704                   -Wl,--wrap,avcodec_encode_video2      \
6705                   -Wl,--wrap,avcodec_encode_subtitle    \
6706                   -Wl,--wrap,avcodec_send_packet        \
6707                   -Wl,--wrap,avcodec_receive_packet     \
6708                   -Wl,--wrap,avcodec_send_frame         \
6709                   -Wl,--wrap,avcodec_receive_frame      \
6710                   -Wl,--wrap,swr_convert                \
6711                   -Wl,--wrap,avresample_convert         \
6712                   -Wl,--wrap,sws_scale ||
6713     disable xmm_clobber_test
6714
6715 check_ld "cc" proper_dce <<EOF
6716 extern const int array[512];
6717 static inline int func(void) { return array[0]; }
6718 int main(void) { return 0; }
6719 EOF
6720
6721 if enabled proper_dce; then
6722     echo "X { local: *; };" > $TMPV
6723     if test_ldflags -Wl,${version_script},$TMPV; then
6724         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6725         quotes='""'
6726         test_cc <<EOF && enable symver_asm_label
6727 void ff_foo(void) __asm__ ("av_foo@VERSION");
6728 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6729 EOF
6730         test_cc <<EOF && enable symver_gnu_asm
6731 __asm__(".symver ff_foo,av_foo@VERSION");
6732 void ff_foo(void) {}
6733 EOF
6734     fi
6735 fi
6736
6737 if [ -z "$optflags" ]; then
6738     if enabled small; then
6739         optflags=$cflags_size
6740     elif enabled optimizations; then
6741         optflags=$cflags_speed
6742     else
6743         optflags=$cflags_noopt
6744     fi
6745 fi
6746
6747 check_optflags(){
6748     check_cflags "$@"
6749     enabled lto && check_ldflags "$@"
6750 }
6751
6752 check_optflags $optflags
6753 check_optflags -fno-math-errno
6754 check_optflags -fno-signed-zeros
6755
6756 if enabled lto; then
6757     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6758     check_cflags  -flto
6759     check_ldflags -flto $cpuflags
6760     disable inline_asm_direct_symbol_refs
6761 fi
6762
6763 enabled ftrapv && check_cflags -ftrapv
6764
6765 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6766 int x;
6767 EOF
6768
6769
6770 if enabled icc; then
6771     # Just warnings, no remarks
6772     check_cflags -w1
6773     # -wd: Disable following warnings
6774     # 144, 167, 556: -Wno-pointer-sign
6775     # 188: enumerated type mixed with another type
6776     # 1292: attribute "foo" ignored
6777     # 1419: external declaration in primary source file
6778     # 10006: ignoring unknown option -fno-signed-zeros
6779     # 10148: ignoring unknown option -Wno-parentheses
6780     # 10156: ignoring option '-W'; no argument required
6781     # 13200: No EMMS instruction before call to function
6782     # 13203: No EMMS instruction before return from function
6783     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6784     # 11030: Warning unknown option --as-needed
6785     # 10156: ignoring option '-export'; no argument required
6786     check_ldflags -wd10156,11030
6787     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6788     enable ebp_available
6789     # The test above does not test linking
6790     enabled lto && disable symver_asm_label
6791     if enabled x86_32; then
6792         icc_version=$($cc -dumpversion)
6793         test ${icc_version%%.*} -ge 11 &&
6794             check_cflags -falign-stack=maintain-16-byte ||
6795             disable aligned_stack
6796     fi
6797 elif enabled gcc; then
6798     check_optflags -fno-tree-vectorize
6799     check_cflags -Werror=format-security
6800     check_cflags -Werror=implicit-function-declaration
6801     check_cflags -Werror=missing-prototypes
6802     check_cflags -Werror=return-type
6803     check_cflags -Werror=vla
6804     check_cflags -Wformat
6805     check_cflags -fdiagnostics-color=auto
6806     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6807     if enabled x86_32; then
6808         case $target_os in
6809         *bsd*)
6810             # BSDs don't guarantee a 16 byte aligned stack, but we can
6811             # request GCC to try to maintain 16 byte alignment throughout
6812             # function calls. Library entry points that might call assembly
6813             # functions align the stack. (The parameter means 2^4 bytes.)
6814             check_cflags -mpreferred-stack-boundary=4
6815             ;;
6816         esac
6817     fi
6818 elif enabled llvm_gcc; then
6819     check_cflags -mllvm -stack-alignment=16
6820 elif enabled clang; then
6821     if enabled x86_32; then
6822         # Clang doesn't support maintaining alignment without assuming the
6823         # same alignment in every function. If 16 byte alignment would be
6824         # enabled, one would also have to either add attribute_align_arg on
6825         # every single entry point into the libraries or enable -mstackrealign
6826         # (doing stack realignment in every single function).
6827         case $target_os in
6828         mingw32|win32|*bsd*)
6829             disable aligned_stack
6830             ;;
6831         *)
6832             check_cflags -mllvm -stack-alignment=16
6833             check_cflags -mstack-alignment=16
6834             ;;
6835         esac
6836     else
6837         check_cflags -mllvm -stack-alignment=16
6838         check_cflags -mstack-alignment=16
6839     fi
6840     check_cflags -Qunused-arguments
6841     check_cflags -Werror=implicit-function-declaration
6842     check_cflags -Werror=missing-prototypes
6843     check_cflags -Werror=return-type
6844 elif enabled cparser; then
6845     add_cflags -Wno-missing-variable-declarations
6846     add_cflags -Wno-empty-statement
6847 elif enabled armcc; then
6848     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6849     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6850     # 2523: use of inline assembly is deprecated
6851     add_cflags -W${armcc_opt},--diag_suppress=2523
6852     add_cflags -W${armcc_opt},--diag_suppress=1207
6853     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6854     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6855     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6856     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6857 elif enabled pathscale; then
6858     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6859     disable inline_asm
6860 elif enabled_any msvc icl; then
6861     enabled x86_32 && disable aligned_stack
6862     enabled_all x86_32 debug && add_cflags -Oy-
6863     enabled debug && add_ldflags -debug
6864     enable pragma_deprecated
6865     if enabled icl; then
6866         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6867         # (correctly) on icl 13.x.
6868         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6869             add_cflags -Qansi-alias
6870         # Some inline asm is not compilable in debug
6871         if enabled debug; then
6872             disable ebp_available
6873             disable ebx_available
6874         fi
6875     fi
6876     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6877     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6878     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6879     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6880     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6881     # MSVC 2013 and newer can handle it fine.
6882     # If this declspec fails, force including stdlib.h before the restrict redefinition
6883     # happens in config.h.
6884     if [ $restrict_keyword != restrict ]; then
6885         test_cc <<EOF || add_cflags -FIstdlib.h
6886 __declspec($restrict_keyword) void *foo(int);
6887 EOF
6888     fi
6889     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6890     # Issue has been fixed in MSVC v19.00.24218.
6891     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6892         check_cflags -d2SSAOptimizer-
6893     # enable utf-8 source processing on VS2015 U2 and newer
6894     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6895         add_cflags -utf-8
6896 fi
6897
6898 for pfx in "" host_; do
6899     varname=${pfx%_}cc_type
6900     eval "type=\$$varname"
6901     if [ "$type" = "msvc" ]; then
6902         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6903 static inline int foo(int a) { return a; }
6904 EOF
6905     fi
6906 done
6907
6908 case $as_type in
6909     clang)
6910         add_asflags -Qunused-arguments
6911     ;;
6912 esac
6913
6914 case $ld_type in
6915     clang)
6916         check_ldflags -Qunused-arguments
6917     ;;
6918 esac
6919
6920 enable frame_thread_encoder
6921
6922 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6923
6924 check_deps $CONFIG_LIST       \
6925            $CONFIG_EXTRA      \
6926            $HAVE_LIST         \
6927            $ALL_COMPONENTS    \
6928
6929 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"
6930 enabled avresample && warn "Building with deprecated library libavresample"
6931
6932 case $target_os in
6933 haiku)
6934     disable memalign
6935     disable posix_memalign
6936     ;;
6937 *-dos|freedos|opendos)
6938     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6939         disable memalign
6940     fi
6941     ;;
6942 esac
6943
6944 flatten_extralibs(){
6945     nested_entries=
6946     list_name=$1
6947     eval list=\$${1}
6948     for entry in $list; do
6949         entry_copy=$entry
6950         resolve entry_copy
6951         flat_entries=
6952         for e in $entry_copy; do
6953             case $e in
6954                 *_extralibs) nested_entries="$nested_entries$e ";;
6955                           *) flat_entries="$flat_entries$e ";;
6956             esac
6957         done
6958         eval $entry="\$flat_entries"
6959     done
6960     append $list_name "$nested_entries"
6961
6962     resolve nested_entries
6963     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6964         flatten_extralibs $list_name
6965     fi
6966 }
6967
6968 flatten_extralibs_wrapper(){
6969     list_name=$1
6970     flatten_extralibs $list_name
6971     unique $list_name
6972     resolve $list_name
6973     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6974     eval printf \''%s'\' \""\$$list_name"\"
6975 }
6976
6977 for linkunit in $LIBRARY_LIST; do
6978     unset current_extralibs
6979     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
6980     for comp in ${components}; do
6981         enabled $comp || continue
6982         comp_extralibs="${comp}_extralibs"
6983         append current_extralibs $comp_extralibs
6984     done
6985     eval prepend ${linkunit}_extralibs $current_extralibs
6986 done
6987
6988 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
6989     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
6990 done
6991
6992 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6993
6994 for thread in $THREADS_LIST; do
6995     if enabled $thread; then
6996         test -n "$thread_type" &&
6997             die "ERROR: Only one thread type must be selected." ||
6998             thread_type="$thread"
6999     fi
7000 done
7001
7002 if disabled stdatomic; then
7003     if enabled atomics_gcc; then
7004         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7005     elif enabled atomics_win32; then
7006         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7007     elif enabled atomics_suncc; then
7008         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7009     elif enabled pthreads; then
7010         add_compat atomics/pthread/stdatomic.o
7011         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7012     else
7013         enabled threads && die "Threading is enabled, but no atomics are available"
7014         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7015     fi
7016 fi
7017
7018 # Check if requested libraries were found.
7019 for lib in $AUTODETECT_LIBS; do
7020     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7021 done
7022
7023 enabled zlib && add_cppflags -DZLIB_CONST
7024
7025 # conditional library dependencies, in any order
7026 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7027 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7028 enabled afir_filter         && prepend avfilter_deps "avcodec"
7029 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7030 enabled aresample_filter    && prepend avfilter_deps "swresample"
7031 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7032 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7033 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7034 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7035 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7036 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7037 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7038 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7039 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7040 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7041 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7042 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7043 enabled pan_filter          && prepend avfilter_deps "swresample"
7044 enabled pp_filter           && prepend avfilter_deps "postproc"
7045 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7046 enabled resample_filter && prepend avfilter_deps "avresample"
7047 enabled sab_filter          && prepend avfilter_deps "swscale"
7048 enabled scale_filter    && prepend avfilter_deps "swscale"
7049 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7050 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7051 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7052 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7053 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7054 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7055 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7056 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7057 enabled spp_filter          && prepend avfilter_deps "avcodec"
7058 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7059 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7060 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7061 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7062
7063 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7064
7065 #FIXME
7066 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7067     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7068
7069 enabled opus_decoder    && prepend avcodec_deps "swresample"
7070
7071 # reorder the items at var $1 to align with the items order at var $2 .
7072 # die if an item at $1 is not at $2 .
7073 reorder_by(){
7074     eval rb_in=\$$1
7075     eval rb_ordered=\$$2
7076
7077     for rb in $rb_in; do
7078         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7079     done
7080
7081     rb_out=
7082     for rb in $rb_ordered; do
7083         is_in $rb $rb_in && rb_out="$rb_out$rb "
7084     done
7085     eval $1=\$rb_out
7086 }
7087
7088 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7089 # within a set of N items, N expansions are enough to expose a cycle.
7090 expand_deps(){
7091     unique ${1}_deps  # required for the early break test.
7092     for dummy in $LIBRARY_LIST; do  # N iteratios
7093         eval deps=\$${1}_deps
7094         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7095         unique ${1}_deps
7096         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7097     done
7098
7099     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7100     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7101 }
7102
7103 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7104 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7105
7106 map 'expand_deps $v' $LIBRARY_LIST
7107
7108 if test "$quiet" != "yes"; then
7109
7110 echo "install prefix            $prefix"
7111 echo "source path               $source_path"
7112 echo "C compiler                $cc"
7113 echo "C library                 $libc_type"
7114 if test "$host_cc" != "$cc"; then
7115     echo "host C compiler           $host_cc"
7116     echo "host C library            $host_libc_type"
7117 fi
7118 echo "ARCH                      $arch ($cpu)"
7119 if test "$build_suffix" != ""; then
7120     echo "build suffix              $build_suffix"
7121 fi
7122 if test "$progs_suffix" != ""; then
7123     echo "progs suffix              $progs_suffix"
7124 fi
7125 if test "$extra_version" != ""; then
7126     echo "version string suffix     $extra_version"
7127 fi
7128 echo "big-endian                ${bigendian-no}"
7129 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7130 if enabled x86; then
7131     echo "standalone assembly       ${x86asm-no}"
7132     echo "x86 assembler             ${x86asmexe}"
7133     echo "MMX enabled               ${mmx-no}"
7134     echo "MMXEXT enabled            ${mmxext-no}"
7135     echo "3DNow! enabled            ${amd3dnow-no}"
7136     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7137     echo "SSE enabled               ${sse-no}"
7138     echo "SSSE3 enabled             ${ssse3-no}"
7139     echo "AESNI enabled             ${aesni-no}"
7140     echo "AVX enabled               ${avx-no}"
7141     echo "AVX2 enabled              ${avx2-no}"
7142     echo "AVX-512 enabled           ${avx512-no}"
7143     echo "XOP enabled               ${xop-no}"
7144     echo "FMA3 enabled              ${fma3-no}"
7145     echo "FMA4 enabled              ${fma4-no}"
7146     echo "i686 features enabled     ${i686-no}"
7147     echo "CMOV is fast              ${fast_cmov-no}"
7148     echo "EBX available             ${ebx_available-no}"
7149     echo "EBP available             ${ebp_available-no}"
7150 fi
7151 if enabled aarch64; then
7152     echo "NEON enabled              ${neon-no}"
7153     echo "VFP enabled               ${vfp-no}"
7154 fi
7155 if enabled arm; then
7156     echo "ARMv5TE enabled           ${armv5te-no}"
7157     echo "ARMv6 enabled             ${armv6-no}"
7158     echo "ARMv6T2 enabled           ${armv6t2-no}"
7159     echo "VFP enabled               ${vfp-no}"
7160     echo "NEON enabled              ${neon-no}"
7161     echo "THUMB enabled             ${thumb-no}"
7162 fi
7163 if enabled mips; then
7164     echo "MIPS FPU enabled          ${mipsfpu-no}"
7165     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7166     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7167     echo "MIPS MSA enabled          ${msa-no}"
7168     echo "MIPS MSA2 enabled         ${msa2-no}"
7169     echo "LOONGSON MMI enabled      ${mmi-no}"
7170 fi
7171 if enabled ppc; then
7172     echo "AltiVec enabled           ${altivec-no}"
7173     echo "VSX enabled               ${vsx-no}"
7174     echo "POWER8 enabled            ${power8-no}"
7175     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7176     echo "dcbzl available           ${dcbzl-no}"
7177 fi
7178 echo "debug symbols             ${debug-no}"
7179 echo "strip symbols             ${stripping-no}"
7180 echo "optimize for size         ${small-no}"
7181 echo "optimizations             ${optimizations-no}"
7182 echo "static                    ${static-no}"
7183 echo "shared                    ${shared-no}"
7184 echo "postprocessing support    ${postproc-no}"
7185 echo "network support           ${network-no}"
7186 echo "threading support         ${thread_type-no}"
7187 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7188 echo "texi2html enabled         ${texi2html-no}"
7189 echo "perl enabled              ${perl-no}"
7190 echo "pod2man enabled           ${pod2man-no}"
7191 echo "makeinfo enabled          ${makeinfo-no}"
7192 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7193 test -n "$random_seed" &&
7194     echo "random seed               ${random_seed}"
7195 echo
7196
7197 echo "External libraries:"
7198 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7199 echo
7200
7201 echo "External libraries providing hardware acceleration:"
7202 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7203 echo
7204
7205 echo "Libraries:"
7206 print_enabled '' $LIBRARY_LIST | print_in_columns
7207 echo
7208
7209 echo "Programs:"
7210 print_enabled '' $PROGRAM_LIST | print_in_columns
7211 echo
7212
7213 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7214     echo "Enabled ${type}s:"
7215     eval list=\$$(toupper $type)_LIST
7216     print_enabled '_*' $list | print_in_columns
7217     echo
7218 done
7219
7220 if test -n "$ignore_tests"; then
7221     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7222     echo "Ignored FATE tests:"
7223     echo $ignore_tests | print_in_columns
7224     echo
7225 fi
7226
7227 echo "License: $license"
7228
7229 fi # test "$quiet" != "yes"
7230
7231 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7232     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7233         if disabled $cfg; then
7234             varname=${cfg}_disable_reason
7235             eval "warn \"Disabled $cfg because \$$varname\""
7236         fi
7237     done
7238 fi
7239
7240 if test -n "$WARNINGS"; then
7241     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7242     enabled fatal_warnings && exit 1
7243 fi
7244
7245 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7246
7247 esc(){
7248     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7249 }
7250
7251 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7252
7253 enabled stripping || strip="echo skipping strip"
7254 enabled stripping || striptype=""
7255
7256 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7257
7258 cat > ffbuild/config.mak <<EOF
7259 # Automatically generated by configure - do not modify!
7260 ifndef FFMPEG_CONFIG_MAK
7261 FFMPEG_CONFIG_MAK=1
7262 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7263 prefix=$prefix
7264 LIBDIR=\$(DESTDIR)$libdir
7265 SHLIBDIR=\$(DESTDIR)$shlibdir
7266 INCDIR=\$(DESTDIR)$incdir
7267 BINDIR=\$(DESTDIR)$bindir
7268 DATADIR=\$(DESTDIR)$datadir
7269 DOCDIR=\$(DESTDIR)$docdir
7270 MANDIR=\$(DESTDIR)$mandir
7271 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7272 INSTALL_NAME_DIR=$install_name_dir
7273 SRC_PATH=$source_path
7274 SRC_LINK=$source_link
7275 ifndef MAIN_MAKEFILE
7276 SRC_PATH:=\$(SRC_PATH:.%=..%)
7277 endif
7278 CC_IDENT=$cc_ident
7279 ARCH=$arch
7280 INTRINSICS=$intrinsics
7281 EXTERN_PREFIX=$extern_prefix
7282 CC=$cc
7283 CXX=$cxx
7284 AS=$as
7285 OBJCC=$objcc
7286 LD=$ld
7287 DEPCC=$dep_cc
7288 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7289 DEPAS=$as
7290 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7291 X86ASM=$x86asmexe
7292 DEPX86ASM=$x86asmexe
7293 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7294 AR=$ar
7295 ARFLAGS=$arflags
7296 AR_O=$ar_o
7297 AR_CMD=$ar
7298 NM_CMD=$nm
7299 RANLIB=$ranlib
7300 STRIP=$strip
7301 STRIPTYPE=$striptype
7302 NVCC=$nvcc
7303 CP=cp -p
7304 LN_S=$ln_s
7305 CPPFLAGS=$CPPFLAGS
7306 CFLAGS=$CFLAGS
7307 CXXFLAGS=$CXXFLAGS
7308 OBJCFLAGS=$OBJCFLAGS
7309 ASFLAGS=$ASFLAGS
7310 NVCCFLAGS=$nvccflags
7311 AS_C=$AS_C
7312 AS_O=$AS_O
7313 OBJCC_C=$OBJCC_C
7314 OBJCC_E=$OBJCC_E
7315 OBJCC_O=$OBJCC_O
7316 CC_C=$CC_C
7317 CC_E=$CC_E
7318 CC_O=$CC_O
7319 CXX_C=$CXX_C
7320 CXX_O=$CXX_O
7321 NVCC_C=$NVCC_C
7322 NVCC_O=$NVCC_O
7323 LD_O=$LD_O
7324 X86ASM_O=$X86ASM_O
7325 LD_LIB=$LD_LIB
7326 LD_PATH=$LD_PATH
7327 DLLTOOL=$dlltool
7328 WINDRES=$windres
7329 DEPWINDRES=$dep_cc
7330 DOXYGEN=$doxygen
7331 LDFLAGS=$LDFLAGS
7332 LDEXEFLAGS=$LDEXEFLAGS
7333 LDSOFLAGS=$LDSOFLAGS
7334 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7335 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7336 X86ASMFLAGS=$X86ASMFLAGS
7337 BUILDSUF=$build_suffix
7338 PROGSSUF=$progs_suffix
7339 FULLNAME=$FULLNAME
7340 LIBPREF=$LIBPREF
7341 LIBSUF=$LIBSUF
7342 LIBNAME=$LIBNAME
7343 SLIBPREF=$SLIBPREF
7344 SLIBSUF=$SLIBSUF
7345 EXESUF=$EXESUF
7346 EXTRA_VERSION=$extra_version
7347 CCDEP=$CCDEP
7348 CXXDEP=$CXXDEP
7349 CCDEP_FLAGS=$CCDEP_FLAGS
7350 ASDEP=$ASDEP
7351 ASDEP_FLAGS=$ASDEP_FLAGS
7352 X86ASMDEP=$X86ASMDEP
7353 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7354 CC_DEPFLAGS=$CC_DEPFLAGS
7355 AS_DEPFLAGS=$AS_DEPFLAGS
7356 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7357 HOSTCC=$host_cc
7358 HOSTLD=$host_ld
7359 HOSTCFLAGS=$host_cflags
7360 HOSTCPPFLAGS=$host_cppflags
7361 HOSTEXESUF=$HOSTEXESUF
7362 HOSTLDFLAGS=$host_ldflags
7363 HOSTEXTRALIBS=$host_extralibs
7364 DEPHOSTCC=$host_cc
7365 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7366 HOSTCCDEP=$HOSTCCDEP
7367 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7368 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7369 HOSTCC_C=$HOSTCC_C
7370 HOSTCC_O=$HOSTCC_O
7371 HOSTLD_O=$HOSTLD_O
7372 TARGET_EXEC=$target_exec $target_exec_args
7373 TARGET_PATH=$target_path
7374 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7375 CFLAGS-ffplay=${sdl2_cflags}
7376 CFLAGS_HEADERS=$CFLAGS_HEADERS
7377 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7378 EXTRALIBS=$extralibs
7379 COMPAT_OBJS=$compat_objs
7380 INSTALL=$install
7381 LIBTARGET=${LIBTARGET}
7382 SLIBNAME=${SLIBNAME}
7383 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7384 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7385 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7386 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7387 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7388 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7389 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7390 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7391 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7392 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7393 NOREDZONE_FLAGS=$noredzone_flags
7394 LIBFUZZER_PATH=$libfuzzer_path
7395 IGNORE_TESTS=$ignore_tests
7396 EOF
7397
7398 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7399
7400 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7401     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7402 done
7403
7404 cat > $TMPH <<EOF
7405 /* Automatically generated by configure - do not modify! */
7406 #ifndef FFMPEG_CONFIG_H
7407 #define FFMPEG_CONFIG_H
7408 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7409 #define FFMPEG_LICENSE "$(c_escape $license)"
7410 #define CONFIG_THIS_YEAR 2019
7411 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7412 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7413 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7414 #define av_restrict $restrict_keyword
7415 #define EXTERN_PREFIX "${extern_prefix}"
7416 #define EXTERN_ASM ${extern_prefix}
7417 #define BUILDSUF "$build_suffix"
7418 #define SLIBSUF "$SLIBSUF"
7419 #define HAVE_MMX2 HAVE_MMXEXT
7420 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7421 EOF
7422
7423 test -n "$assert_level" &&
7424     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7425
7426 test -n "$malloc_prefix" &&
7427     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7428
7429 if enabled x86asm; then
7430     append config_files $TMPASM
7431     cat > $TMPASM <<EOF
7432 ; Automatically generated by configure - do not modify!
7433 EOF
7434 fi
7435
7436 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7437
7438
7439 mkdir -p doc
7440 mkdir -p tests
7441 mkdir -p tests/api
7442 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7443
7444 print_config ARCH_   "$config_files" $ARCH_LIST
7445 print_config HAVE_   "$config_files" $HAVE_LIST
7446 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7447                                      $CONFIG_EXTRA      \
7448                                      $ALL_COMPONENTS    \
7449
7450 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7451 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7452
7453 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7454 cp_if_changed $TMPH config.h
7455 touch ffbuild/.config
7456
7457 enabled x86asm && cp_if_changed $TMPASM config.asm
7458
7459 cat > $TMPH <<EOF
7460 /* Generated by ffmpeg configure */
7461 #ifndef AVUTIL_AVCONFIG_H
7462 #define AVUTIL_AVCONFIG_H
7463 EOF
7464
7465 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7466
7467 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7468
7469 cp_if_changed $TMPH libavutil/avconfig.h
7470
7471 # full_filter_name_foo=vf_foo
7472 # full_filter_name_bar=asrc_bar
7473 # ...
7474 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7475
7476 # generate the lists of enabled components
7477 print_enabled_components(){
7478     file=$1
7479     struct_name=$2
7480     name=$3
7481     shift 3
7482     echo "static const $struct_name * const $name[] = {" > $TMPH
7483     for c in $*; do
7484         if enabled $c; then
7485             case $name in
7486                 filter_list)
7487                     eval c=\$full_filter_name_${c%_filter}
7488                 ;;
7489                 indev_list)
7490                     c=${c%_indev}_demuxer
7491                 ;;
7492                 outdev_list)
7493                     c=${c%_outdev}_muxer
7494                 ;;
7495             esac
7496             printf "    &ff_%s,\n" $c >> $TMPH
7497         fi
7498     done
7499     if [ "$name" = "filter_list" ]; then
7500         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7501             printf "    &ff_%s,\n" $c >> $TMPH
7502         done
7503     fi
7504     echo "    NULL };" >> $TMPH
7505     cp_if_changed $TMPH $file
7506 }
7507
7508 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7509 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7510 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7511 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7512 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7513 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7514 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7515 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7516 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7517
7518 # Settings for pkg-config files
7519
7520 cat > $TMPH <<EOF
7521 # Automatically generated by configure - do not modify!
7522 shared=$shared
7523 build_suffix=$build_suffix
7524 prefix=$prefix
7525 libdir=$libdir
7526 incdir=$incdir
7527 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7528 source_path=${source_path}
7529 LIBPREF=${LIBPREF}
7530 LIBSUF=${LIBSUF}
7531 extralibs_avutil="$avutil_extralibs"
7532 extralibs_avcodec="$avcodec_extralibs"
7533 extralibs_avformat="$avformat_extralibs"
7534 extralibs_avdevice="$avdevice_extralibs"
7535 extralibs_avfilter="$avfilter_extralibs"
7536 extralibs_avresample="$avresample_extralibs"
7537 extralibs_postproc="$postproc_extralibs"
7538 extralibs_swscale="$swscale_extralibs"
7539 extralibs_swresample="$swresample_extralibs"
7540 EOF
7541
7542 for lib in $LIBRARY_LIST; do
7543     lib_deps="$(eval echo \$${lib}_deps)"
7544     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7545 done
7546
7547 cp_if_changed $TMPH ffbuild/config.sh