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 or libtls 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-libass          enable libass subtitles rendering,
 221                            needed for subtitles and ass filter [no]
 222   --enable-libbluray       enable BluRay reading using libbluray [no]
 223   --enable-libbs2b         enable bs2b DSP library [no]
 224   --enable-libcaca         enable textual display using libcaca [no]
 225   --enable-libcelt         enable CELT decoding via libcelt [no]
 226   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 227   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
 228   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 229                            and libraw1394 [no]
 230   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 231   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 232   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 233   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 234   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 235   --enable-libgme          enable Game Music Emu via libgme [no]
 236   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 237   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 238   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 239   --enable-libjack         enable JACK audio sound server [no]
 240   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 241   --enable-libmodplug      enable ModPlug via libmodplug [no]
 242   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 243   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 244   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 245   --enable-libopencv       enable video filtering via libopencv [no]
 246   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 247   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 248   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 249   --enable-libopus         enable Opus de/encoding via libopus [no]
 250   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 251   --enable-librsvg         enable SVG rasterization via librsvg [no]
 252   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 253   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 254   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 255   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 256   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 257   --enable-libsoxr         enable Include libsoxr resampling [no]
 258   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 259   --enable-libssh          enable SFTP protocol via libssh [no]
 260   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 261   --enable-libtheora       enable Theora encoding via libtheora [no]
 262   --enable-libtls          enable LibreSSL (via libtls), needed for https support
 263                            if openssl or gnutls is not used [no]
 264   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 265   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 266   --enable-libvidstab      enable video stabilization using vid.stab [no]
 267   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 268   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 269   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 270                            native implementation exists [no]
 271   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 272   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 273   --enable-libwebp         enable WebP encoding via libwebp [no]
 274   --enable-libx264         enable H.264 encoding via x264 [no]
 275   --enable-libx265         enable HEVC encoding via x265 [no]
 276   --enable-libxavs         enable AVS encoding via xavs [no]
 277   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 278   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 279   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 280   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 281   --enable-libxvid         enable Xvid encoding via xvidcore,
 282                            native MPEG-4/Xvid encoder exists [no]
 283   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
 284   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 285   --enable-libzmq          enable message passing via libzmq [no]
 286   --enable-libzvbi         enable teletext support via libzvbi [no]
 287   --enable-lv2             enable LV2 audio filtering [no]
 288   --disable-lzma           disable lzma [autodetect]
 289   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 290   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
 291   --enable-mediacodec      enable Android MediaCodec support [no]
 292   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 293   --enable-openal          enable OpenAL 1.1 capture support [no]
 294   --enable-opencl          enable OpenCL processing [no]
 295   --enable-opengl          enable OpenGL rendering [no]
 296   --enable-openssl         enable openssl, needed for https support
 297                            if gnutls or libtls is not used [no]
 298   --disable-sndio          disable sndio support [autodetect]
 299   --disable-schannel       disable SChannel SSP, needed for TLS support on
 300                            Windows if openssl and gnutls are not used [autodetect]
 301   --disable-sdl2           disable sdl2 [autodetect]
 302   --disable-securetransport disable Secure Transport, needed for TLS support
 303                            on OSX if openssl and gnutls are not used [autodetect]
 304   --disable-xlib           disable xlib [autodetect]
 305   --disable-zlib           disable zlib [autodetect]
 306
 307   The following libraries provide various hardware acceleration features:
 308   --disable-amf            disable AMF video encoding code [autodetect]
 309   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 310   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
 311   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 312   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 313   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 314   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
 315   --enable-libdrm          enable DRM code (Linux) [no]
 316   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 317   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 318   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 319   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
 320   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 321   --enable-omx             enable OpenMAX IL code [no]
 322   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 323   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 324   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
 325   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 326   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 327   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 328
 329 Toolchain options:
 330   --arch=ARCH              select architecture [$arch]
 331   --cpu=CPU                select the minimum required CPU (affects
 332                            instruction selection, may crash on older CPUs)
 333   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 334   --progs-suffix=SUFFIX    program name suffix []
 335   --enable-cross-compile   assume a cross-compiler is used
 336   --sysroot=PATH           root of cross-build tree
 337   --sysinclude=PATH        location of cross-build system headers
 338   --target-os=OS           compiler targets OS [$target_os]
 339   --target-exec=CMD        command to run executables on target
 340   --target-path=DIR        path to view of build directory on target
 341   --target-samples=DIR     path to samples directory on target
 342   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 343   --toolchain=NAME         set tool defaults according to NAME
 344   --nm=NM                  use nm tool NM [$nm_default]
 345   --ar=AR                  use archive tool AR [$ar_default]
 346   --as=AS                  use assembler AS [$as_default]
 347   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 348   --strip=STRIP            use strip tool STRIP [$strip_default]
 349   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 350   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 351   --cc=CC                  use C compiler CC [$cc_default]
 352   --cxx=CXX                use C compiler CXX [$cxx_default]
 353   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 354   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 355   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
 356   --ld=LD                  use linker LD [$ld_default]
 357   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 358   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 359   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 360   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 361   --host-cc=HOSTCC         use host C compiler HOSTCC
 362   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 363   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 364   --host-ld=HOSTLD         use host linker HOSTLD
 365   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 366   --host-libs=HLIBS        use libs HLIBS when linking for host
 367   --host-os=OS             compiler host OS [$target_os]
 368   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 369   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 370   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 371   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 372   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 373   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 374   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 375   --extra-version=STRING   version string suffix []
 376   --optflags=OPTFLAGS      override optimization-related compiler flags
 377   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 378   --build-suffix=SUFFIX    library name suffix []
 379   --enable-pic             build position-independent code
 380   --enable-thumb           compile for Thumb instruction set
 381   --enable-lto             use link-time optimization
 382   --env="ENV=override"     override the environment variables
 383
 384 Advanced options (experts only):
 385   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 386   --custom-allocator=NAME  use a supported custom allocator
 387   --disable-symver         disable symbol versioning
 388   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 389   --disable-safe-bitstream-reader
 390                            disable buffer boundary checking in bitreaders
 391                            (faster, but may crash)
 392   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 393
 394 Optimization options (experts only):
 395   --disable-asm            disable all assembly optimizations
 396   --disable-altivec        disable AltiVec optimizations
 397   --disable-vsx            disable VSX optimizations
 398   --disable-power8         disable POWER8 optimizations
 399   --disable-amd3dnow       disable 3DNow! optimizations
 400   --disable-amd3dnowext    disable 3DNow! extended optimizations
 401   --disable-mmx            disable MMX optimizations
 402   --disable-mmxext         disable MMXEXT optimizations
 403   --disable-sse            disable SSE optimizations
 404   --disable-sse2           disable SSE2 optimizations
 405   --disable-sse3           disable SSE3 optimizations
 406   --disable-ssse3          disable SSSE3 optimizations
 407   --disable-sse4           disable SSE4 optimizations
 408   --disable-sse42          disable SSE4.2 optimizations
 409   --disable-avx            disable AVX optimizations
 410   --disable-xop            disable XOP optimizations
 411   --disable-fma3           disable FMA3 optimizations
 412   --disable-fma4           disable FMA4 optimizations
 413   --disable-avx2           disable AVX2 optimizations
 414   --disable-avx512         disable AVX-512 optimizations
 415   --disable-aesni          disable AESNI optimizations
 416   --disable-armv5te        disable armv5te optimizations
 417   --disable-armv6          disable armv6 optimizations
 418   --disable-armv6t2        disable armv6t2 optimizations
 419   --disable-vfp            disable VFP optimizations
 420   --disable-neon           disable NEON optimizations
 421   --disable-inline-asm     disable use of inline assembly
 422   --disable-x86asm         disable use of standalone x86 assembly
 423   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 424   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 425   --disable-msa            disable MSA optimizations
 426   --disable-mipsfpu        disable floating point MIPS optimizations
 427   --disable-mmi            disable Loongson SIMD optimizations
 428   --disable-fast-unaligned consider unaligned accesses slow
 429
 430 Developer options (useful when working on FFmpeg itself):
 431   --disable-debug          disable debugging symbols
 432   --enable-debug=LEVEL     set the debug level [$debuglevel]
 433   --disable-optimizations  disable compiler optimizations
 434   --enable-extra-warnings  enable more compiler warnings
 435   --disable-stripping      disable stripping of executables and shared libraries
 436   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 437                            2 causes a slowdown at runtime.
 438   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 439   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 440                            leaks and errors, using the specified valgrind binary.
 441                            Cannot be combined with --target-exec
 442   --enable-ftrapv          Trap arithmetic overflows
 443   --samples=PATH           location of test samples for FATE, if not set use
 444                            \$FATE_SAMPLES at make invocation time.
 445   --enable-neon-clobber-test check NEON registers for clobbering (should be
 446                            used only for debugging purposes)
 447   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 448                            should be used only for debugging purposes)
 449   --enable-random          randomly enable/disable components
 450   --disable-random
 451   --enable-random=LIST     randomly enable/disable specific components or
 452   --disable-random=LIST    component groups. LIST is a comma-separated list
 453                            of NAME[:PROB] entries where NAME is a component
 454                            (group) and PROB the probability associated with
 455                            NAME (default 0.5).
 456   --random-seed=VALUE      seed value for --enable/disable-random
 457   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 458                            (only applies to --disable-optimizations builds)
 459   --enable-osfuzz          Enable building fuzzer tool
 460   --libfuzzer=PATH         path to libfuzzer
 461   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 462                            in the name) of tests whose result is ignored
 463   --enable-linux-perf      enable Linux Performance Monitor API
 464
 465 NOTE: Object files are built at the place where configure is launched.
 466 EOF
 467   exit 0
 468 }
 469
 470 if test -t 1 && which tput >/dev/null 2>&1; then
 471     ncolors=$(tput colors)
 472     if test -n "$ncolors" && test $ncolors -ge 8; then
 473         bold_color=$(tput bold)
 474         warn_color=$(tput setaf 3)
 475         error_color=$(tput setaf 1)
 476         reset_color=$(tput sgr0)
 477     fi
 478     # 72 used instead of 80 since that's the default of pr
 479     ncols=$(tput cols)
 480 fi
 481 : ${ncols:=72}
 482
 483 log(){
 484     echo "$@" >> $logfile
 485 }
 486
 487 log_file(){
 488     log BEGIN $1
 489     pr -n -t $1 >> $logfile
 490     log END $1
 491 }
 492
 493 warn(){
 494     log "WARNING: $*"
 495     WARNINGS="${WARNINGS}WARNING: $*\n"
 496 }
 497
 498 die(){
 499     log "$@"
 500     echo "$error_color$bold_color$@$reset_color"
 501     cat <<EOF
 502
 503 If you think configure made a mistake, make sure you are using the latest
 504 version from Git.  If the latest version fails, report the problem to the
 505 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 506 EOF
 507     if disabled logging; then
 508         cat <<EOF
 509 Rerun configure with logging enabled (do not use --disable-logging), and
 510 include the log this produces with your report.
 511 EOF
 512     else
 513         cat <<EOF
 514 Include the log file "$logfile" produced by configure as this will help
 515 solve the problem.
 516 EOF
 517     fi
 518     exit 1
 519 }
 520
 521 # Avoid locale weirdness, besides we really just want to translate ASCII.
 522 toupper(){
 523     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 524 }
 525
 526 tolower(){
 527     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 528 }
 529
 530 c_escape(){
 531     echo "$*" | sed 's/["\\]/\\\0/g'
 532 }
 533
 534 sh_quote(){
 535     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 536     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 537     echo "$v"
 538 }
 539
 540 cleanws(){
 541     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 542 }
 543
 544 filter(){
 545     pat=$1
 546     shift
 547     for v; do
 548         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 549     done
 550 }
 551
 552 filter_out(){
 553     pat=$1
 554     shift
 555     for v; do
 556         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 557     done
 558 }
 559
 560 map(){
 561     m=$1
 562     shift
 563     for v; do eval $m; done
 564 }
 565
 566 add_suffix(){
 567     suffix=$1
 568     shift
 569     for v; do echo ${v}${suffix}; done
 570 }
 571
 572 remove_suffix(){
 573     suffix=$1
 574     shift
 575     for v; do echo ${v%$suffix}; done
 576 }
 577
 578 set_all(){
 579     value=$1
 580     shift
 581     for var in $*; do
 582         eval $var=$value
 583     done
 584 }
 585
 586 set_weak(){
 587     value=$1
 588     shift
 589     for var; do
 590         eval : \${$var:=$value}
 591     done
 592 }
 593
 594 sanitize_var_name(){
 595     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 596 }
 597
 598 set_sanitized(){
 599     var=$1
 600     shift
 601     eval $(sanitize_var_name "$var")='$*'
 602 }
 603
 604 get_sanitized(){
 605     eval echo \$$(sanitize_var_name "$1")
 606 }
 607
 608 pushvar(){
 609     for pvar in $*; do
 610         eval level=\${${pvar}_level:=0}
 611         eval ${pvar}_${level}="\$$pvar"
 612         eval ${pvar}_level=$(($level+1))
 613     done
 614 }
 615
 616 popvar(){
 617     for pvar in $*; do
 618         eval level=\${${pvar}_level:-0}
 619         test $level = 0 && continue
 620         eval level=$(($level-1))
 621         eval $pvar="\${${pvar}_${level}}"
 622         eval ${pvar}_level=$level
 623         eval unset ${pvar}_${level}
 624     done
 625 }
 626
 627 request(){
 628     for var in $*; do
 629         eval ${var}_requested=yes
 630         eval $var=
 631     done
 632 }
 633
 634 enable(){
 635     set_all yes $*
 636 }
 637
 638 disable(){
 639     set_all no $*
 640 }
 641
 642 enable_weak(){
 643     set_weak yes $*
 644 }
 645
 646 disable_weak(){
 647     set_weak no $*
 648 }
 649
 650 enable_sanitized(){
 651     for var; do
 652         enable $(sanitize_var_name $var)
 653     done
 654 }
 655
 656 disable_sanitized(){
 657     for var; do
 658         disable $(sanitize_var_name $var)
 659     done
 660 }
 661
 662 do_enable_deep(){
 663     for var; do
 664         enabled $var && continue
 665         eval sel="\$${var}_select"
 666         eval sgs="\$${var}_suggest"
 667         pushvar var sgs
 668         enable_deep $sel
 669         popvar sgs
 670         enable_deep_weak $sgs
 671         popvar var
 672     done
 673 }
 674
 675 enable_deep(){
 676     do_enable_deep $*
 677     enable $*
 678 }
 679
 680 enable_deep_weak(){
 681     for var; do
 682         disabled $var && continue
 683         pushvar var
 684         do_enable_deep $var
 685         popvar var
 686         enable_weak $var
 687     done
 688 }
 689
 690 requested(){
 691     test "${1#!}" = "$1" && op="=" || op="!="
 692     eval test "x\$${1#!}_requested" $op "xyes"
 693 }
 694
 695 enabled(){
 696     test "${1#!}" = "$1" && op="=" || op="!="
 697     eval test "x\$${1#!}" $op "xyes"
 698 }
 699
 700 disabled(){
 701     test "${1#!}" = "$1" && op="=" || op="!="
 702     eval test "x\$${1#!}" $op "xno"
 703 }
 704
 705 enabled_all(){
 706     for opt; do
 707         enabled $opt || return 1
 708     done
 709 }
 710
 711 disabled_all(){
 712     for opt; do
 713         disabled $opt || return 1
 714     done
 715 }
 716
 717 enabled_any(){
 718     for opt; do
 719         enabled $opt && return 0
 720     done
 721 }
 722
 723 disabled_any(){
 724     for opt; do
 725         disabled $opt && return 0
 726     done
 727     return 1
 728 }
 729
 730 set_default(){
 731     for opt; do
 732         eval : \${$opt:=\$${opt}_default}
 733     done
 734 }
 735
 736 is_in(){
 737     value=$1
 738     shift
 739     for var in $*; do
 740         [ $var = $value ] && return 0
 741     done
 742     return 1
 743 }
 744
 745 check_deps(){
 746     for cfg; do
 747         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 748         disabled ${cfg}_checking && continue
 749         enable ${cfg}_checking
 750
 751         eval dep_all="\$${cfg}_deps"
 752         eval dep_any="\$${cfg}_deps_any"
 753         eval dep_con="\$${cfg}_conflict"
 754         eval dep_sel="\$${cfg}_select"
 755         eval dep_sgs="\$${cfg}_suggest"
 756         eval dep_ifa="\$${cfg}_if"
 757         eval dep_ifn="\$${cfg}_if_any"
 758
 759         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
 760         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 761         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
 762
 763         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 764         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 765         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
 766         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
 767         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
 768         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
 769
 770         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 771
 772         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 773             # filter out library deps, these do not belong in extralibs
 774             is_in $dep $LIBRARY_LIST && continue
 775             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 776         done
 777
 778         disable ${cfg}_checking
 779     done
 780 }
 781
 782 print_config(){
 783     pfx=$1
 784     files=$2
 785     shift 2
 786     map 'eval echo "$v \${$v:-no}"' "$@" |
 787     awk "BEGIN { split(\"$files\", files) }
 788         {
 789             c = \"$pfx\" toupper(\$1);
 790             v = \$2;
 791             sub(/yes/, 1, v);
 792             sub(/no/,  0, v);
 793             for (f in files) {
 794                 file = files[f];
 795                 if (file ~ /\\.h\$/) {
 796                     printf(\"#define %s %d\\n\", c, v) >>file;
 797                 } else if (file ~ /\\.asm\$/) {
 798                     printf(\"%%define %s %d\\n\", c, v) >>file;
 799                 } else if (file ~ /\\.mak\$/) {
 800                     n = -v ? \"\" : \"!\";
 801                     printf(\"%s%s=yes\\n\", n, c) >>file;
 802                 } else if (file ~ /\\.texi\$/) {
 803                     pre = -v ? \"\" : \"@c \";
 804                     yesno = \$2;
 805                     c2 = tolower(c);
 806                     gsub(/_/, \"-\", c2);
 807                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 808                 }
 809             }
 810         }"
 811 }
 812
 813 print_enabled(){
 814     suf=$1
 815     shift
 816     for v; do
 817         enabled $v && printf "%s\n" ${v%$suf}
 818     done
 819 }
 820
 821 append(){
 822     var=$1
 823     shift
 824     eval "$var=\"\$$var $*\""
 825 }
 826
 827 prepend(){
 828     var=$1
 829     shift
 830     eval "$var=\"$* \$$var\""
 831 }
 832
 833 unique(){
 834     var=$1
 835     uniq_list=""
 836     for tok in $(eval echo \$$var); do
 837         uniq_list="$(filter_out $tok $uniq_list) $tok"
 838     done
 839     eval "$var=\"${uniq_list}\""
 840 }
 841
 842 resolve(){
 843     var=$1
 844     tmpvar=
 845     for entry in $(eval echo \$$var); do
 846         tmpvar="$tmpvar $(eval echo \$${entry})"
 847     done
 848     eval "$var=\"${tmpvar}\""
 849 }
 850
 851 add_cppflags(){
 852     append CPPFLAGS "$@"
 853 }
 854
 855 add_cflags(){
 856     append CFLAGS $($cflags_filter "$@")
 857 }
 858
 859 add_cflags_headers(){
 860     append CFLAGS_HEADERS $($cflags_filter "$@")
 861 }
 862
 863 add_cxxflags(){
 864     append CXXFLAGS $($cflags_filter "$@")
 865 }
 866
 867 add_asflags(){
 868     append ASFLAGS $($asflags_filter "$@")
 869 }
 870
 871 add_objcflags(){
 872     append OBJCFLAGS $($objcflags_filter "$@")
 873 }
 874
 875 add_ldflags(){
 876     append LDFLAGS $($ldflags_filter "$@")
 877 }
 878
 879 add_ldexeflags(){
 880     append LDEXEFLAGS $($ldflags_filter "$@")
 881 }
 882
 883 add_ldsoflags(){
 884     append LDSOFLAGS $($ldflags_filter "$@")
 885 }
 886
 887 add_stripflags(){
 888     append ASMSTRIPFLAGS "$@"
 889 }
 890
 891 add_extralibs(){
 892     prepend extralibs $($ldflags_filter "$@")
 893 }
 894
 895 add_host_cppflags(){
 896     append host_cppflags "$@"
 897 }
 898
 899 add_host_cflags(){
 900     append host_cflags $($host_cflags_filter "$@")
 901 }
 902
 903 add_host_ldflags(){
 904     append host_ldflags $($host_ldflags_filter "$@")
 905 }
 906
 907 add_compat(){
 908     append compat_objs $1
 909     shift
 910     map 'add_cppflags -D$v' "$@"
 911 }
 912
 913 test_cmd(){
 914     log "$@"
 915     "$@" >> $logfile 2>&1
 916 }
 917
 918 test_stat(){
 919     log test_stat "$@"
 920     stat "$1" >> $logfile 2>&1
 921 }
 922
 923 cc_o(){
 924     eval printf '%s\\n' $CC_O
 925 }
 926
 927 cc_e(){
 928     eval printf '%s\\n' $CC_E
 929 }
 930
 931 test_cc(){
 932     log test_cc "$@"
 933     cat > $TMPC
 934     log_file $TMPC
 935     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 936 }
 937
 938 test_cxx(){
 939     log test_cxx "$@"
 940     cat > $TMPCPP
 941     log_file $TMPCPP
 942     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 943 }
 944
 945 test_objcc(){
 946     log test_objcc "$@"
 947     cat > $TMPM
 948     log_file $TMPM
 949     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 950 }
 951
 952 test_cpp(){
 953     log test_cpp "$@"
 954     cat > $TMPC
 955     log_file $TMPC
 956     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 957 }
 958
 959 as_o(){
 960     eval printf '%s\\n' $AS_O
 961 }
 962
 963 test_as(){
 964     log test_as "$@"
 965     cat > $TMPS
 966     log_file $TMPS
 967     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 968 }
 969
 970 check_cmd(){
 971     log check_cmd "$@"
 972     cmd=$1
 973     disabled $cmd && return
 974     disable $cmd
 975     test_cmd $@ && enable $cmd
 976 }
 977
 978 check_inline_asm(){
 979     log check_inline_asm "$@"
 980     name="$1"
 981     code="$2"
 982     shift 2
 983     disable $name
 984     test_cc "$@" <<EOF && enable $name
 985 void foo(void){ __asm__ volatile($code); }
 986 EOF
 987 }
 988
 989 check_inline_asm_flags(){
 990     log check_inline_asm_flags "$@"
 991     name="$1"
 992     code="$2"
 993     flags=''
 994     shift 2
 995     while [ "$1" != "" ]; do
 996       append flags $1
 997       shift
 998     done;
 999     disable $name
1000     cat > $TMPC <<EOF
1001 void foo(void){ __asm__ volatile($code); }
1002 EOF
1003     log_file $TMPC
1004     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1005     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1006 }
1007
1008 check_insn(){
1009     log check_insn "$@"
1010     check_inline_asm ${1}_inline "$2"
1011     echo "$2" | test_as && enable ${1}_external || disable ${1}_external
1012 }
1013
1014 test_x86asm(){
1015     log test_x86asm "$@"
1016     echo "$1" > $TMPS
1017     log_file $TMPS
1018     shift 1
1019     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1020 }
1021
1022 ld_o(){
1023     eval printf '%s\\n' $LD_O
1024 }
1025
1026 test_ld(){
1027     log test_ld "$@"
1028     type=$1
1029     shift 1
1030     flags=$(filter_out '-l*|*.so' $@)
1031     libs=$(filter '-l*|*.so' $@)
1032     test_$type $($cflags_filter $flags) || return
1033     flags=$($ldflags_filter $flags)
1034     libs=$($ldflags_filter $libs)
1035     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1036 }
1037
1038 print_include(){
1039     hdr=$1
1040     test "${hdr%.h}" = "${hdr}" &&
1041         echo "#include $hdr"    ||
1042         echo "#include <$hdr>"
1043 }
1044
1045 test_code(){
1046     log test_code "$@"
1047     check=$1
1048     headers=$2
1049     code=$3
1050     shift 3
1051     {
1052         for hdr in $headers; do
1053             print_include $hdr
1054         done
1055         echo "int main(void) { $code; return 0; }"
1056     } | test_$check "$@"
1057 }
1058
1059 check_cppflags(){
1060     log check_cppflags "$@"
1061     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1062 #include <stdlib.h>
1063 EOF
1064 }
1065
1066 test_cflags(){
1067     log test_cflags "$@"
1068     set -- $($cflags_filter "$@")
1069     test_cc "$@" <<EOF
1070 int x;
1071 EOF
1072 }
1073
1074 check_cflags(){
1075     log check_cflags "$@"
1076     test_cflags "$@" && add_cflags "$@"
1077 }
1078
1079 check_cxxflags(){
1080     log check_cxxflags "$@"
1081     set -- $($cflags_filter "$@")
1082     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1083 int x;
1084 EOF
1085 }
1086
1087 test_objcflags(){
1088     log test_objcflags "$@"
1089     set -- $($objcflags_filter "$@")
1090     test_objcc "$@" <<EOF
1091 int x;
1092 EOF
1093 }
1094
1095 check_objcflags(){
1096     log check_objcflags "$@"
1097     test_objcflags "$@" && add_objcflags "$@"
1098 }
1099
1100 test_ldflags(){
1101     log test_ldflags "$@"
1102     set -- $($ldflags_filter "$@")
1103     test_ld "cc" "$@" <<EOF
1104 int main(void){ return 0; }
1105 EOF
1106 }
1107
1108 check_ldflags(){
1109     log check_ldflags "$@"
1110     test_ldflags "$@" && add_ldflags "$@"
1111 }
1112
1113 test_stripflags(){
1114     log test_stripflags "$@"
1115     # call test_cc to get a fresh TMPO
1116     test_cc <<EOF
1117 int main(void) { return 0; }
1118 EOF
1119     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1120 }
1121
1122 check_stripflags(){
1123     log check_stripflags "$@"
1124     test_stripflags "$@" && add_stripflags "$@"
1125 }
1126
1127 check_header(){
1128     log check_header "$@"
1129     headers=$1
1130     shift
1131     disable_sanitized $headers
1132     {
1133         for hdr in $headers; do
1134             print_include $hdr
1135         done
1136         echo "int x;"
1137     } | test_cpp "$@" && enable_sanitized $headers
1138 }
1139
1140 check_header_objcc(){
1141     log check_header_objcc "$@"
1142     rm -f -- "$TMPO"
1143     header=$1
1144     shift
1145     disable_sanitized $header
1146     {
1147        echo "#include <$header>"
1148        echo "int main(void) { return 0; }"
1149     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1150 }
1151
1152 check_apple_framework(){
1153     log check_apple_framework "$@"
1154     framework="$1"
1155     name="$(tolower $framework)"
1156     header="${framework}/${framework}.h"
1157     disable $name
1158     check_header_objcc $header &&
1159         enable $name && eval ${name}_extralibs='"-framework $framework"'
1160 }
1161
1162 check_func(){
1163     log check_func "$@"
1164     func=$1
1165     shift
1166     disable $func
1167     test_ld "cc" "$@" <<EOF && enable $func
1168 extern int $func();
1169 int main(void){ $func(); }
1170 EOF
1171 }
1172
1173 check_complexfunc(){
1174     log check_complexfunc "$@"
1175     func=$1
1176     narg=$2
1177     shift 2
1178     test $narg = 2 && args="f, g" || args="f * I"
1179     disable $func
1180     test_ld "cc" "$@" <<EOF && enable $func
1181 #include <complex.h>
1182 #include <math.h>
1183 float foo(complex float f, complex float g) { return $func($args); }
1184 int main(void){ return (int) foo; }
1185 EOF
1186 }
1187
1188 check_mathfunc(){
1189     log check_mathfunc "$@"
1190     func=$1
1191     narg=$2
1192     shift 2
1193     test $narg = 2 && args="f, g" || args="f"
1194     disable $func
1195     test_ld "cc" "$@" <<EOF && enable $func
1196 #include <math.h>
1197 float foo(float f, float g) { return $func($args); }
1198 int main(void){ return (int) foo; }
1199 EOF
1200 }
1201
1202 check_func_headers(){
1203     log check_func_headers "$@"
1204     headers=$1
1205     funcs=$2
1206     shift 2
1207     {
1208         for hdr in $headers; do
1209             print_include $hdr
1210         done
1211         echo "#include <stdint.h>"
1212         for func in $funcs; do
1213             echo "long check_$func(void) { return (long) $func; }"
1214         done
1215         echo "int main(void) { int ret = 0;"
1216         # LTO could optimize out the test functions without this
1217         for func in $funcs; do
1218             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1219         done
1220         echo "return ret; }"
1221     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1222 }
1223
1224 check_class_headers_cpp(){
1225     log check_class_headers_cpp "$@"
1226     headers=$1
1227     classes=$2
1228     shift 2
1229     {
1230         for hdr in $headers; do
1231             echo "#include <$hdr>"
1232         done
1233         echo "int main(void) { "
1234         i=1
1235         for class in $classes; do
1236             echo "$class obj$i;"
1237             i=$(expr $i + 1)
1238         done
1239         echo "return 0; }"
1240     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1241 }
1242
1243 test_cpp_condition(){
1244     log test_cpp_condition "$@"
1245     header=$1
1246     condition=$2
1247     shift 2
1248     test_cpp "$@" <<EOF
1249 #include <$header>
1250 #if !($condition)
1251 #error "unsatisfied condition: $condition"
1252 #endif
1253 EOF
1254 }
1255
1256 check_cpp_condition(){
1257     log check_cpp_condition "$@"
1258     name=$1
1259     shift 1
1260     disable $name
1261     test_cpp_condition "$@" && enable $name
1262 }
1263
1264 test_cflags_cc(){
1265     log test_cflags_cc "$@"
1266     flags=$1
1267     header=$2
1268     condition=$3
1269     shift 3
1270     set -- $($cflags_filter "$flags")
1271     test_cc "$@" <<EOF
1272 #include <$header>
1273 #if !($condition)
1274 #error "unsatisfied condition: $condition"
1275 #endif
1276 EOF
1277 }
1278
1279 check_lib(){
1280     log check_lib "$@"
1281     name="$1"
1282     headers="$2"
1283     funcs="$3"
1284     shift 3
1285     disable $name
1286     check_func_headers "$headers" "$funcs" "$@" &&
1287         enable $name && eval ${name}_extralibs="\$@"
1288 }
1289
1290 check_lib_cpp(){
1291     log check_lib_cpp "$@"
1292     name="$1"
1293     headers="$2"
1294     classes="$3"
1295     shift 3
1296     disable $name
1297     check_class_headers_cpp "$headers" "$classes" "$@" &&
1298         enable $name && eval ${name}_extralibs="\$@"
1299 }
1300
1301 test_pkg_config(){
1302     log test_pkg_config "$@"
1303     name="$1"
1304     pkg_version="$2"
1305     pkg="${2%% *}"
1306     headers="$3"
1307     funcs="$4"
1308     shift 4
1309     disable $name
1310     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1311     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1312     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1313     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1314         enable $name &&
1315         set_sanitized "${name}_cflags"    $pkg_cflags &&
1316         set_sanitized "${name}_extralibs" $pkg_libs
1317 }
1318
1319 check_pkg_config(){
1320     log check_pkg_config "$@"
1321     name="$1"
1322     test_pkg_config "$@" &&
1323         eval add_cflags \$${name}_cflags
1324 }
1325
1326 test_exec(){
1327     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1328 }
1329
1330 check_exec_crash(){
1331     log check_exec_crash "$@"
1332     code=$(cat)
1333
1334     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1335     # are safe but may not be available everywhere.  Thus we use
1336     # raise(SIGTERM) instead.  The check is run in a subshell so we
1337     # can redirect the "Terminated" message from the shell.  SIGBUS
1338     # is not defined by standard C so it is used conditionally.
1339
1340     (test_exec "$@") >> $logfile 2>&1 <<EOF
1341 #include <signal.h>
1342 static void sighandler(int sig){
1343     raise(SIGTERM);
1344 }
1345 int foo(void){
1346     $code
1347 }
1348 int (*func_ptr)(void) = foo;
1349 int main(void){
1350     signal(SIGILL, sighandler);
1351     signal(SIGFPE, sighandler);
1352     signal(SIGSEGV, sighandler);
1353 #ifdef SIGBUS
1354     signal(SIGBUS, sighandler);
1355 #endif
1356     return func_ptr();
1357 }
1358 EOF
1359 }
1360
1361 check_type(){
1362     log check_type "$@"
1363     headers=$1
1364     type=$2
1365     shift 2
1366     disable_sanitized "$type"
1367     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1368 }
1369
1370 check_struct(){
1371     log check_struct "$@"
1372     headers=$1
1373     struct=$2
1374     member=$3
1375     shift 3
1376     disable_sanitized "${struct}_${member}"
1377     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1378         enable_sanitized "${struct}_${member}"
1379 }
1380
1381 check_builtin(){
1382     log check_builtin "$@"
1383     name=$1
1384     headers=$2
1385     builtin=$3
1386     shift 3
1387     disable "$name"
1388     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1389 }
1390
1391 check_compile_assert(){
1392     log check_compile_assert "$@"
1393     name=$1
1394     headers=$2
1395     condition=$3
1396     shift 3
1397     disable "$name"
1398     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1399 }
1400
1401 require(){
1402     log require "$@"
1403     name_version="$1"
1404     name="${1%% *}"
1405     shift
1406     check_lib $name "$@" || die "ERROR: $name_version not found"
1407 }
1408
1409 require_cpp(){
1410     name="$1"
1411     headers="$2"
1412     classes="$3"
1413     shift 3
1414     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1415 }
1416
1417 require_header(){
1418     log require_header "$@"
1419     headers="$1"
1420     check_header "$@" || die "ERROR: $headers not found"
1421 }
1422
1423 require_cpp_condition(){
1424     log require_cpp_condition "$@"
1425     condition="$2"
1426     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1427 }
1428
1429 require_pkg_config(){
1430     log require_pkg_config "$@"
1431     pkg_version="$2"
1432     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1433 }
1434
1435 hostcc_e(){
1436     eval printf '%s\\n' $HOSTCC_E
1437 }
1438
1439 hostcc_o(){
1440     eval printf '%s\\n' $HOSTCC_O
1441 }
1442
1443 test_host_cc(){
1444     log test_host_cc "$@"
1445     cat > $TMPC
1446     log_file $TMPC
1447     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1448 }
1449
1450 test_host_cpp(){
1451     log test_host_cpp "$@"
1452     cat > $TMPC
1453     log_file $TMPC
1454     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1455 }
1456
1457 check_host_cppflags(){
1458     log check_host_cppflags "$@"
1459     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1460 #include <stdlib.h>
1461 EOF
1462 }
1463
1464 check_host_cflags(){
1465     log check_host_cflags "$@"
1466     set -- $($host_cflags_filter "$@")
1467     test_host_cc "$@" <<EOF && append host_cflags "$@"
1468 int x;
1469 EOF
1470 }
1471
1472 test_host_cpp_condition(){
1473     log test_host_cpp_condition "$@"
1474     header=$1
1475     condition=$2
1476     shift 2
1477     test_host_cpp "$@" <<EOF
1478 #include <$header>
1479 #if !($condition)
1480 #error "unsatisfied condition: $condition"
1481 #endif
1482 EOF
1483 }
1484
1485 check_host_cpp_condition(){
1486     log check_host_cpp_condition "$@"
1487     name=$1
1488     shift 1
1489     disable $name
1490     test_host_cpp_condition "$@" && enable $name
1491 }
1492
1493 cp_if_changed(){
1494     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1495     mkdir -p "$(dirname $2)"
1496     cp -f "$1" "$2"
1497 }
1498
1499 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1500 # system-dependent things.
1501
1502 AVCODEC_COMPONENTS="
1503     bsfs
1504     decoders
1505     encoders
1506     hwaccels
1507     parsers
1508 "
1509
1510 AVDEVICE_COMPONENTS="
1511     indevs
1512     outdevs
1513 "
1514
1515 AVFILTER_COMPONENTS="
1516     filters
1517 "
1518
1519 AVFORMAT_COMPONENTS="
1520     demuxers
1521     muxers
1522     protocols
1523 "
1524
1525 COMPONENT_LIST="
1526     $AVCODEC_COMPONENTS
1527     $AVDEVICE_COMPONENTS
1528     $AVFILTER_COMPONENTS
1529     $AVFORMAT_COMPONENTS
1530 "
1531
1532 EXAMPLE_LIST="
1533     avio_dir_cmd_example
1534     avio_reading_example
1535     decode_audio_example
1536     decode_video_example
1537     demuxing_decoding_example
1538     encode_audio_example
1539     encode_video_example
1540     extract_mvs_example
1541     filter_audio_example
1542     filtering_audio_example
1543     filtering_video_example
1544     http_multiclient_example
1545     hw_decode_example
1546     metadata_example
1547     muxing_example
1548     qsvdec_example
1549     remuxing_example
1550     resampling_audio_example
1551     scaling_video_example
1552     transcode_aac_example
1553     transcoding_example
1554     vaapi_encode_example
1555     vaapi_transcode_example
1556 "
1557
1558 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1559     alsa
1560     appkit
1561     avfoundation
1562     bzlib
1563     coreimage
1564     iconv
1565     libxcb
1566     libxcb_shm
1567     libxcb_shape
1568     libxcb_xfixes
1569     lzma
1570     schannel
1571     sdl2
1572     securetransport
1573     sndio
1574     xlib
1575     zlib
1576 "
1577
1578 EXTERNAL_LIBRARY_GPL_LIST="
1579     avisynth
1580     frei0r
1581     libcdio
1582     librubberband
1583     libvidstab
1584     libx264
1585     libx265
1586     libxavs
1587     libxvid
1588 "
1589
1590 EXTERNAL_LIBRARY_NONFREE_LIST="
1591     decklink
1592     libndi_newtek
1593     libfdk_aac
1594     openssl
1595     libtls
1596 "
1597
1598 EXTERNAL_LIBRARY_VERSION3_LIST="
1599     gmp
1600     libopencore_amrnb
1601     libopencore_amrwb
1602     libvmaf
1603     libvo_amrwbenc
1604     rkmpp
1605 "
1606
1607 EXTERNAL_LIBRARY_GPLV3_LIST="
1608     libsmbclient
1609 "
1610
1611 EXTERNAL_LIBRARY_LIST="
1612     $EXTERNAL_LIBRARY_GPL_LIST
1613     $EXTERNAL_LIBRARY_NONFREE_LIST
1614     $EXTERNAL_LIBRARY_VERSION3_LIST
1615     $EXTERNAL_LIBRARY_GPLV3_LIST
1616     chromaprint
1617     gcrypt
1618     gnutls
1619     jni
1620     ladspa
1621     libass
1622     libbluray
1623     libbs2b
1624     libcaca
1625     libcelt
1626     libcodec2
1627     libdc1394
1628     libdrm
1629     libflite
1630     libfontconfig
1631     libfreetype
1632     libfribidi
1633     libgme
1634     libgsm
1635     libiec61883
1636     libilbc
1637     libjack
1638     libkvazaar
1639     libmodplug
1640     libmp3lame
1641     libmysofa
1642     libopencv
1643     libopenh264
1644     libopenjpeg
1645     libopenmpt
1646     libopus
1647     libpulse
1648     librsvg
1649     librtmp
1650     libshine
1651     libsmbclient
1652     libsnappy
1653     libsoxr
1654     libspeex
1655     libssh
1656     libtesseract
1657     libtheora
1658     libtwolame
1659     libv4l2
1660     libvorbis
1661     libvpx
1662     libwavpack
1663     libwebp
1664     libxml2
1665     libzimg
1666     libzmq
1667     libzvbi
1668     lv2
1669     mediacodec
1670     openal
1671     opengl
1672 "
1673
1674 HWACCEL_AUTODETECT_LIBRARY_LIST="
1675     amf
1676     audiotoolbox
1677     crystalhd
1678     cuda
1679     cuvid
1680     d3d11va
1681     dxva2
1682     ffnvcodec
1683     nvdec
1684     nvenc
1685     vaapi
1686     vdpau
1687     videotoolbox
1688     v4l2_m2m
1689     xvmc
1690 "
1691
1692 # catchall list of things that require external libs to link
1693 EXTRALIBS_LIST="
1694     cpu_init
1695     cws2fws
1696 "
1697
1698 HWACCEL_LIBRARY_NONFREE_LIST="
1699     cuda_sdk
1700     libnpp
1701 "
1702
1703 HWACCEL_LIBRARY_LIST="
1704     $HWACCEL_LIBRARY_NONFREE_LIST
1705     libmfx
1706     mmal
1707     omx
1708     opencl
1709 "
1710
1711 DOCUMENT_LIST="
1712     doc
1713     htmlpages
1714     manpages
1715     podpages
1716     txtpages
1717 "
1718
1719 FEATURE_LIST="
1720     ftrapv
1721     gray
1722     hardcoded_tables
1723     omx_rpi
1724     runtime_cpudetect
1725     safe_bitstream_reader
1726     shared
1727     small
1728     static
1729     swscale_alpha
1730 "
1731
1732 LIBRARY_LIST="
1733     avcodec
1734     avdevice
1735     avfilter
1736     avformat
1737     avresample
1738     avutil
1739     postproc
1740     swresample
1741     swscale
1742 "
1743
1744 LICENSE_LIST="
1745     gpl
1746     nonfree
1747     version3
1748 "
1749
1750 PROGRAM_LIST="
1751     ffplay
1752     ffprobe
1753     ffmpeg
1754 "
1755
1756 SUBSYSTEM_LIST="
1757     dct
1758     dwt
1759     error_resilience
1760     faan
1761     fast_unaligned
1762     fft
1763     lsp
1764     lzo
1765     mdct
1766     pixelutils
1767     network
1768     rdft
1769 "
1770
1771 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1772 CONFIG_LIST="
1773     $DOCUMENT_LIST
1774     $EXAMPLE_LIST
1775     $EXTERNAL_LIBRARY_LIST
1776     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1777     $HWACCEL_LIBRARY_LIST
1778     $HWACCEL_AUTODETECT_LIBRARY_LIST
1779     $FEATURE_LIST
1780     $LICENSE_LIST
1781     $LIBRARY_LIST
1782     $PROGRAM_LIST
1783     $SUBSYSTEM_LIST
1784     autodetect
1785     fontconfig
1786     linux_perf
1787     memory_poisoning
1788     neon_clobber_test
1789     ossfuzz
1790     pic
1791     thumb
1792     valgrind_backtrace
1793     xmm_clobber_test
1794     $COMPONENT_LIST
1795 "
1796
1797 THREADS_LIST="
1798     pthreads
1799     os2threads
1800     w32threads
1801 "
1802
1803 ATOMICS_LIST="
1804     atomics_gcc
1805     atomics_suncc
1806     atomics_win32
1807 "
1808
1809 AUTODETECT_LIBS="
1810     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1811     $HWACCEL_AUTODETECT_LIBRARY_LIST
1812     $THREADS_LIST
1813 "
1814
1815 ARCH_LIST="
1816     aarch64
1817     alpha
1818     arm
1819     avr32
1820     avr32_ap
1821     avr32_uc
1822     bfin
1823     ia64
1824     m68k
1825     mips
1826     mips64
1827     parisc
1828     ppc
1829     ppc64
1830     s390
1831     sh4
1832     sparc
1833     sparc64
1834     tilegx
1835     tilepro
1836     tomi
1837     x86
1838     x86_32
1839     x86_64
1840 "
1841
1842 ARCH_EXT_LIST_ARM="
1843     armv5te
1844     armv6
1845     armv6t2
1846     armv8
1847     neon
1848     vfp
1849     vfpv3
1850     setend
1851 "
1852
1853 ARCH_EXT_LIST_MIPS="
1854     mipsfpu
1855     mips32r2
1856     mips32r5
1857     mips64r2
1858     mips32r6
1859     mips64r6
1860     mipsdsp
1861     mipsdspr2
1862     msa
1863 "
1864
1865 ARCH_EXT_LIST_LOONGSON="
1866     loongson2
1867     loongson3
1868     mmi
1869 "
1870
1871 ARCH_EXT_LIST_X86_SIMD="
1872     aesni
1873     amd3dnow
1874     amd3dnowext
1875     avx
1876     avx2
1877     avx512
1878     fma3
1879     fma4
1880     mmx
1881     mmxext
1882     sse
1883     sse2
1884     sse3
1885     sse4
1886     sse42
1887     ssse3
1888     xop
1889 "
1890
1891 ARCH_EXT_LIST_PPC="
1892     altivec
1893     dcbzl
1894     ldbrx
1895     power8
1896     ppc4xx
1897     vsx
1898 "
1899
1900 ARCH_EXT_LIST_X86="
1901     $ARCH_EXT_LIST_X86_SIMD
1902     cpunop
1903     i686
1904 "
1905
1906 ARCH_EXT_LIST="
1907     $ARCH_EXT_LIST_ARM
1908     $ARCH_EXT_LIST_PPC
1909     $ARCH_EXT_LIST_X86
1910     $ARCH_EXT_LIST_MIPS
1911     $ARCH_EXT_LIST_LOONGSON
1912 "
1913
1914 ARCH_FEATURES="
1915     aligned_stack
1916     fast_64bit
1917     fast_clz
1918     fast_cmov
1919     local_aligned
1920     simd_align_16
1921     simd_align_32
1922     simd_align_64
1923 "
1924
1925 BUILTIN_LIST="
1926     atomic_cas_ptr
1927     machine_rw_barrier
1928     MemoryBarrier
1929     mm_empty
1930     rdtsc
1931     sem_timedwait
1932     sync_val_compare_and_swap
1933 "
1934 HAVE_LIST_CMDLINE="
1935     inline_asm
1936     symver
1937     x86asm
1938 "
1939
1940 HAVE_LIST_PUB="
1941     bigendian
1942     fast_unaligned
1943 "
1944
1945 HEADERS_LIST="
1946     arpa_inet_h
1947     asm_types_h
1948     cdio_paranoia_h
1949     cdio_paranoia_paranoia_h
1950     cuda_h
1951     dispatch_dispatch_h
1952     dev_bktr_ioctl_bt848_h
1953     dev_bktr_ioctl_meteor_h
1954     dev_ic_bt8xx_h
1955     dev_video_bktr_ioctl_bt848_h
1956     dev_video_meteor_ioctl_meteor_h
1957     direct_h
1958     dirent_h
1959     dxgidebug_h
1960     dxva_h
1961     ES2_gl_h
1962     gsm_h
1963     io_h
1964     machine_ioctl_bt848_h
1965     machine_ioctl_meteor_h
1966     malloc_h
1967     opencv2_core_core_c_h
1968     OpenGL_gl3_h
1969     poll_h
1970     sys_param_h
1971     sys_resource_h
1972     sys_select_h
1973     sys_soundcard_h
1974     sys_time_h
1975     sys_un_h
1976     sys_videoio_h
1977     termios_h
1978     udplite_h
1979     unistd_h
1980     valgrind_valgrind_h
1981     windows_h
1982     winsock2_h
1983 "
1984
1985 INTRINSICS_LIST="
1986     intrinsics_neon
1987 "
1988
1989 COMPLEX_FUNCS="
1990     cabs
1991     cexp
1992 "
1993
1994 MATH_FUNCS="
1995     atanf
1996     atan2f
1997     cbrt
1998     cbrtf
1999     copysign
2000     cosf
2001     erf
2002     exp2
2003     exp2f
2004     expf
2005     hypot
2006     isfinite
2007     isinf
2008     isnan
2009     ldexpf
2010     llrint
2011     llrintf
2012     log2
2013     log2f
2014     log10f
2015     lrint
2016     lrintf
2017     powf
2018     rint
2019     round
2020     roundf
2021     sinf
2022     trunc
2023     truncf
2024 "
2025
2026 SYSTEM_FEATURES="
2027     dos_paths
2028     libc_msvcrt
2029     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2030     section_data_rel_ro
2031     threads
2032     uwp
2033     winrt
2034 "
2035
2036 SYSTEM_FUNCS="
2037     access
2038     aligned_malloc
2039     arc4random
2040     clock_gettime
2041     closesocket
2042     CommandLineToArgvW
2043     fcntl
2044     getaddrinfo
2045     gethrtime
2046     getopt
2047     GetProcessAffinityMask
2048     GetProcessMemoryInfo
2049     GetProcessTimes
2050     getrusage
2051     GetSystemTimeAsFileTime
2052     gettimeofday
2053     glob
2054     glXGetProcAddress
2055     gmtime_r
2056     inet_aton
2057     isatty
2058     kbhit
2059     localtime_r
2060     lstat
2061     lzo1x_999_compress
2062     mach_absolute_time
2063     MapViewOfFile
2064     memalign
2065     mkstemp
2066     mmap
2067     mprotect
2068     nanosleep
2069     PeekNamedPipe
2070     posix_memalign
2071     pthread_cancel
2072     sched_getaffinity
2073     SecItemImport
2074     SetConsoleTextAttribute
2075     SetConsoleCtrlHandler
2076     setmode
2077     setrlimit
2078     Sleep
2079     strerror_r
2080     sysconf
2081     sysctl
2082     usleep
2083     UTGetOSTypeFromString
2084     VirtualAlloc
2085     wglGetProcAddress
2086 "
2087
2088 SYSTEM_LIBRARIES="
2089     vaapi_drm
2090     vaapi_x11
2091     vdpau_x11
2092     wincrypt
2093 "
2094
2095 TOOLCHAIN_FEATURES="
2096     as_arch_directive
2097     as_fpu_directive
2098     as_func
2099     as_object_arch
2100     asm_mod_q
2101     blocks_extension
2102     ebp_available
2103     ebx_available
2104     gnu_as
2105     gnu_windres
2106     ibm_asm
2107     inline_asm_direct_symbol_refs
2108     inline_asm_labels
2109     inline_asm_nonlocal_labels
2110     pragma_deprecated
2111     rsync_contimeout
2112     symver_asm_label
2113     symver_gnu_asm
2114     vfp_args
2115     xform_asm
2116     xmm_clobbers
2117 "
2118
2119 TYPES_LIST="
2120     kCMVideoCodecType_HEVC
2121     socklen_t
2122     struct_addrinfo
2123     struct_group_source_req
2124     struct_ip_mreq_source
2125     struct_ipv6_mreq
2126     struct_msghdr_msg_flags
2127     struct_pollfd
2128     struct_rusage_ru_maxrss
2129     struct_sctp_event_subscribe
2130     struct_sockaddr_in6
2131     struct_sockaddr_sa_len
2132     struct_sockaddr_storage
2133     struct_stat_st_mtim_tv_nsec
2134     struct_v4l2_frmivalenum_discrete
2135 "
2136
2137 HAVE_LIST="
2138     $ARCH_EXT_LIST
2139     $(add_suffix _external $ARCH_EXT_LIST)
2140     $(add_suffix _inline   $ARCH_EXT_LIST)
2141     $ARCH_FEATURES
2142     $BUILTIN_LIST
2143     $COMPLEX_FUNCS
2144     $HAVE_LIST_CMDLINE
2145     $HAVE_LIST_PUB
2146     $HEADERS_LIST
2147     $INTRINSICS_LIST
2148     $MATH_FUNCS
2149     $SYSTEM_FEATURES
2150     $SYSTEM_FUNCS
2151     $SYSTEM_LIBRARIES
2152     $THREADS_LIST
2153     $TOOLCHAIN_FEATURES
2154     $TYPES_LIST
2155     makeinfo
2156     makeinfo_html
2157     opencl_d3d11
2158     opencl_drm_arm
2159     opencl_drm_beignet
2160     opencl_dxva2
2161     opencl_vaapi_beignet
2162     opencl_vaapi_intel_media
2163     perl
2164     pod2man
2165     texi2html
2166 "
2167
2168 # options emitted with CONFIG_ prefix but not available on the command line
2169 CONFIG_EXTRA="
2170     aandcttables
2171     ac3dsp
2172     adts_header
2173     audio_frame_queue
2174     audiodsp
2175     blockdsp
2176     bswapdsp
2177     cabac
2178     cbs
2179     cbs_h264
2180     cbs_h265
2181     cbs_mpeg2
2182     dirac_parse
2183     dvprofile
2184     exif
2185     faandct
2186     faanidct
2187     fdctdsp
2188     flacdsp
2189     fmtconvert
2190     frame_thread_encoder
2191     g722dsp
2192     golomb
2193     gplv3
2194     h263dsp
2195     h264chroma
2196     h264dsp
2197     h264parse
2198     h264pred
2199     h264qpel
2200     hevcparse
2201     hpeldsp
2202     huffman
2203     huffyuvdsp
2204     huffyuvencdsp
2205     idctdsp
2206     iirfilter
2207     mdct15
2208     intrax8
2209     iso_media
2210     ividsp
2211     jpegtables
2212     lgplv3
2213     libx262
2214     llauddsp
2215     llviddsp
2216     llvidencdsp
2217     lpc
2218     lzf
2219     me_cmp
2220     mpeg_er
2221     mpegaudio
2222     mpegaudiodsp
2223     mpegaudioheader
2224     mpegvideo
2225     mpegvideoenc
2226     mss34dsp
2227     pixblockdsp
2228     qpeldsp
2229     qsv
2230     qsvdec
2231     qsvenc
2232     qsvvpp
2233     rangecoder
2234     riffdec
2235     riffenc
2236     rtpdec
2237     rtpenc_chain
2238     rv34dsp
2239     sinewin
2240     snappy
2241     srtp
2242     startcode
2243     texturedsp
2244     texturedspenc
2245     tpeldsp
2246     vaapi_1
2247     vaapi_encode
2248     vc1dsp
2249     videodsp
2250     vp3dsp
2251     vp56dsp
2252     vp8dsp
2253     wma_freqs
2254     wmv2dsp
2255 "
2256
2257 CMDLINE_SELECT="
2258     $ARCH_EXT_LIST
2259     $CONFIG_LIST
2260     $HAVE_LIST_CMDLINE
2261     $THREADS_LIST
2262     asm
2263     cross_compile
2264     debug
2265     extra_warnings
2266     logging
2267     lto
2268     optimizations
2269     rpath
2270     stripping
2271 "
2272
2273 PATHS_LIST="
2274     bindir
2275     datadir
2276     docdir
2277     incdir
2278     libdir
2279     mandir
2280     pkgconfigdir
2281     prefix
2282     shlibdir
2283     install_name_dir
2284 "
2285
2286 CMDLINE_SET="
2287     $PATHS_LIST
2288     ar
2289     arch
2290     as
2291     assert_level
2292     build_suffix
2293     cc
2294     objcc
2295     cpu
2296     cross_prefix
2297     custom_allocator
2298     cxx
2299     dep_cc
2300     doxygen
2301     env
2302     extra_version
2303     gas
2304     host_cc
2305     host_cflags
2306     host_extralibs
2307     host_ld
2308     host_ldflags
2309     host_os
2310     ignore_tests
2311     install
2312     ld
2313     ln_s
2314     logfile
2315     malloc_prefix
2316     nm
2317     optflags
2318     nvccflags
2319     pkg_config
2320     pkg_config_flags
2321     progs_suffix
2322     random_seed
2323     ranlib
2324     samples
2325     strip
2326     sws_max_filter_size
2327     sysinclude
2328     sysroot
2329     target_exec
2330     target_os
2331     target_path
2332     target_samples
2333     tempprefix
2334     toolchain
2335     valgrind
2336     x86asmexe
2337 "
2338
2339 CMDLINE_APPEND="
2340     extra_cflags
2341     extra_cxxflags
2342     extra_objcflags
2343     host_cppflags
2344 "
2345
2346 # code dependency declarations
2347
2348 # architecture extensions
2349
2350 armv5te_deps="arm"
2351 armv6_deps="arm"
2352 armv6t2_deps="arm"
2353 armv8_deps="aarch64"
2354 neon_deps_any="aarch64 arm"
2355 intrinsics_neon_deps="neon"
2356 vfp_deps_any="aarch64 arm"
2357 vfpv3_deps="vfp"
2358 setend_deps="arm"
2359
2360 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2361
2362 altivec_deps="ppc"
2363 dcbzl_deps="ppc"
2364 ldbrx_deps="ppc"
2365 ppc4xx_deps="ppc"
2366 vsx_deps="altivec"
2367 power8_deps="vsx"
2368
2369 loongson2_deps="mips"
2370 loongson3_deps="mips"
2371 mips32r2_deps="mips"
2372 mips32r5_deps="mips"
2373 mips32r6_deps="mips"
2374 mips64r2_deps="mips"
2375 mips64r6_deps="mips"
2376 mipsfpu_deps="mips"
2377 mipsdsp_deps="mips"
2378 mipsdspr2_deps="mips"
2379 mmi_deps="mips"
2380 msa_deps="mipsfpu"
2381
2382 cpunop_deps="i686"
2383 x86_64_select="i686"
2384 x86_64_suggest="fast_cmov"
2385
2386 amd3dnow_deps="mmx"
2387 amd3dnowext_deps="amd3dnow"
2388 i686_deps="x86"
2389 mmx_deps="x86"
2390 mmxext_deps="mmx"
2391 sse_deps="mmxext"
2392 sse2_deps="sse"
2393 sse3_deps="sse2"
2394 ssse3_deps="sse3"
2395 sse4_deps="ssse3"
2396 sse42_deps="sse4"
2397 aesni_deps="sse42"
2398 avx_deps="sse42"
2399 xop_deps="avx"
2400 fma3_deps="avx"
2401 fma4_deps="avx"
2402 avx2_deps="avx"
2403 avx512_deps="avx2"
2404
2405 mmx_external_deps="x86asm"
2406 mmx_inline_deps="inline_asm x86"
2407 mmx_suggest="mmx_external mmx_inline"
2408
2409 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2410     eval dep=\$${ext}_deps
2411     eval ${ext}_external_deps='"${dep}_external"'
2412     eval ${ext}_inline_deps='"${dep}_inline"'
2413     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2414 done
2415
2416 aligned_stack_if_any="aarch64 ppc x86"
2417 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2418 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2419 fast_unaligned_if_any="aarch64 ppc x86"
2420 simd_align_16_if_any="altivec neon sse"
2421 simd_align_32_if_any="avx"
2422 simd_align_64_if_any="avx512"
2423
2424 # system capabilities
2425 symver_if_any="symver_asm_label symver_gnu_asm"
2426 valgrind_backtrace_conflict="optimizations"
2427 valgrind_backtrace_deps="valgrind_valgrind_h"
2428
2429 # threading support
2430 atomics_gcc_if="sync_val_compare_and_swap"
2431 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2432 atomics_win32_if="MemoryBarrier"
2433 atomics_native_if_any="$ATOMICS_LIST"
2434 w32threads_deps="atomics_native"
2435 threads_if_any="$THREADS_LIST"
2436
2437 # subsystems
2438 cbs_h264_select="cbs golomb"
2439 cbs_h265_select="cbs golomb"
2440 cbs_mpeg2_select="cbs"
2441 dct_select="rdft"
2442 dirac_parse_select="golomb"
2443 error_resilience_select="me_cmp"
2444 faandct_deps="faan"
2445 faandct_select="fdctdsp"
2446 faanidct_deps="faan"
2447 faanidct_select="idctdsp"
2448 h264dsp_select="startcode"
2449 hevcparse_select="golomb"
2450 frame_thread_encoder_deps="encoders threads"
2451 intrax8_select="blockdsp idctdsp"
2452 mdct_select="fft"
2453 mdct15_select="fft"
2454 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2455 mpeg_er_select="error_resilience"
2456 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2457 mpegaudiodsp_select="dct"
2458 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2459 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2460 vc1dsp_select="h264chroma qpeldsp startcode"
2461 rdft_select="fft"
2462
2463 # decoders / encoders
2464 aac_decoder_select="adts_header mdct15 mdct sinewin"
2465 aac_fixed_decoder_select="adts_header mdct sinewin"
2466 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2467 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2468 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2469 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2470 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2471 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2472 adpcm_g722_decoder_select="g722dsp"
2473 adpcm_g722_encoder_select="g722dsp"
2474 aic_decoder_select="golomb idctdsp"
2475 alac_encoder_select="lpc"
2476 als_decoder_select="bswapdsp"
2477 amrnb_decoder_select="lsp"
2478 amrwb_decoder_select="lsp"
2479 amv_decoder_select="sp5x_decoder exif"
2480 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2481 ape_decoder_select="bswapdsp llauddsp"
2482 apng_decoder_deps="zlib"
2483 apng_encoder_deps="zlib"
2484 apng_encoder_select="llvidencdsp"
2485 aptx_decoder_select="audio_frame_queue"
2486 aptx_encoder_select="audio_frame_queue"
2487 aptx_hd_decoder_select="audio_frame_queue"
2488 aptx_hd_encoder_select="audio_frame_queue"
2489 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2490 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2491 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2492 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2493 atrac1_decoder_select="mdct sinewin"
2494 atrac3_decoder_select="mdct"
2495 atrac3p_decoder_select="mdct sinewin"
2496 avrn_decoder_select="exif jpegtables"
2497 bink_decoder_select="blockdsp hpeldsp"
2498 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2499 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2500 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2501 clearvideo_decoder_select="idctdsp"
2502 cllc_decoder_select="bswapdsp"
2503 comfortnoise_encoder_select="lpc"
2504 cook_decoder_select="audiodsp mdct sinewin"
2505 cscd_decoder_select="lzo"
2506 cscd_decoder_suggest="zlib"
2507 dca_decoder_select="mdct"
2508 dds_decoder_select="texturedsp"
2509 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2510 dnxhd_decoder_select="blockdsp idctdsp"
2511 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2512 dolby_e_decoder_select="mdct"
2513 dvvideo_decoder_select="dvprofile idctdsp"
2514 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2515 dxa_decoder_deps="zlib"
2516 dxv_decoder_select="lzf texturedsp"
2517 eac3_decoder_select="ac3_decoder"
2518 eac3_encoder_select="ac3_encoder"
2519 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2520 eatgq_decoder_select="aandcttables"
2521 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2522 exr_decoder_deps="zlib"
2523 ffv1_decoder_select="rangecoder"
2524 ffv1_encoder_select="rangecoder"
2525 ffvhuff_decoder_select="huffyuv_decoder"
2526 ffvhuff_encoder_select="huffyuv_encoder"
2527 fic_decoder_select="golomb"
2528 flac_decoder_select="flacdsp"
2529 flac_encoder_select="bswapdsp flacdsp lpc"
2530 flashsv2_decoder_deps="zlib"
2531 flashsv2_encoder_deps="zlib"
2532 flashsv_decoder_deps="zlib"
2533 flashsv_encoder_deps="zlib"
2534 flv_decoder_select="h263_decoder"
2535 flv_encoder_select="h263_encoder"
2536 fourxm_decoder_select="blockdsp bswapdsp"
2537 fraps_decoder_select="bswapdsp huffman"
2538 g2m_decoder_deps="zlib"
2539 g2m_decoder_select="blockdsp idctdsp jpegtables"
2540 g729_decoder_select="audiodsp"
2541 h261_decoder_select="mpegvideo"
2542 h261_encoder_select="aandcttables mpegvideoenc"
2543 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2544 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2545 h263i_decoder_select="h263_decoder"
2546 h263p_decoder_select="h263_decoder"
2547 h263p_encoder_select="h263_encoder"
2548 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2549 h264_decoder_suggest="error_resilience"
2550 hap_decoder_select="snappy texturedsp"
2551 hap_encoder_deps="libsnappy"
2552 hap_encoder_select="texturedspenc"
2553 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2554 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2555 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2556 iac_decoder_select="imc_decoder"
2557 imc_decoder_select="bswapdsp fft mdct sinewin"
2558 indeo3_decoder_select="hpeldsp"
2559 indeo4_decoder_select="ividsp"
2560 indeo5_decoder_select="ividsp"
2561 interplay_video_decoder_select="hpeldsp"
2562 jpegls_decoder_select="mjpeg_decoder"
2563 jv_decoder_select="blockdsp"
2564 lagarith_decoder_select="llviddsp"
2565 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2566 magicyuv_decoder_select="llviddsp"
2567 magicyuv_encoder_select="llvidencdsp"
2568 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2569 metasound_decoder_select="lsp mdct sinewin"
2570 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2571 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2572 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2573 mjpegb_decoder_select="mjpeg_decoder"
2574 mlp_decoder_select="mlp_parser"
2575 mlp_encoder_select="lpc"
2576 motionpixels_decoder_select="bswapdsp"
2577 mp1_decoder_select="mpegaudio"
2578 mp1float_decoder_select="mpegaudio"
2579 mp2_decoder_select="mpegaudio"
2580 mp2float_decoder_select="mpegaudio"
2581 mp3_decoder_select="mpegaudio"
2582 mp3adu_decoder_select="mpegaudio"
2583 mp3adufloat_decoder_select="mpegaudio"
2584 mp3float_decoder_select="mpegaudio"
2585 mp3on4_decoder_select="mpegaudio"
2586 mp3on4float_decoder_select="mpegaudio"
2587 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2588 mpc8_decoder_select="mpegaudiodsp"
2589 mpegvideo_decoder_select="mpegvideo"
2590 mpeg1video_decoder_select="mpegvideo"
2591 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2592 mpeg2video_decoder_select="mpegvideo"
2593 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2594 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2595 mpeg4_encoder_select="h263_encoder"
2596 msa1_decoder_select="mss34dsp"
2597 mscc_decoder_deps="zlib"
2598 msmpeg4v1_decoder_select="h263_decoder"
2599 msmpeg4v2_decoder_select="h263_decoder"
2600 msmpeg4v2_encoder_select="h263_encoder"
2601 msmpeg4v3_decoder_select="h263_decoder"
2602 msmpeg4v3_encoder_select="h263_encoder"
2603 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2604 mts2_decoder_select="mss34dsp"
2605 mxpeg_decoder_select="mjpeg_decoder"
2606 nellymoser_decoder_select="mdct sinewin"
2607 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2608 nuv_decoder_select="idctdsp lzo"
2609 on2avc_decoder_select="mdct"
2610 opus_decoder_deps="swresample"
2611 opus_decoder_select="mdct15"
2612 opus_encoder_select="audio_frame_queue mdct15"
2613 png_decoder_deps="zlib"
2614 png_encoder_deps="zlib"
2615 png_encoder_select="llvidencdsp"
2616 prores_decoder_select="blockdsp idctdsp"
2617 prores_encoder_select="fdctdsp"
2618 qcelp_decoder_select="lsp"
2619 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2620 ra_144_decoder_select="audiodsp"
2621 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2622 ralf_decoder_select="golomb"
2623 rawvideo_decoder_select="bswapdsp"
2624 rscc_decoder_deps="zlib"
2625 rtjpeg_decoder_select="me_cmp"
2626 rv10_decoder_select="h263_decoder"
2627 rv10_encoder_select="h263_encoder"
2628 rv20_decoder_select="h263_decoder"
2629 rv20_encoder_select="h263_encoder"
2630 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2631 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2632 screenpresso_decoder_deps="zlib"
2633 shorten_decoder_select="bswapdsp"
2634 sipr_decoder_select="lsp"
2635 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2636 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2637 sonic_decoder_select="golomb rangecoder"
2638 sonic_encoder_select="golomb rangecoder"
2639 sonic_ls_encoder_select="golomb rangecoder"
2640 sp5x_decoder_select="mjpeg_decoder"
2641 srgc_decoder_deps="zlib"
2642 svq1_decoder_select="hpeldsp"
2643 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2644 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2645 svq3_decoder_suggest="zlib"
2646 tak_decoder_select="audiodsp"
2647 tdsc_decoder_deps="zlib"
2648 tdsc_decoder_select="mjpeg_decoder"
2649 theora_decoder_select="vp3_decoder"
2650 thp_decoder_select="mjpeg_decoder"
2651 tiff_decoder_suggest="zlib lzma"
2652 tiff_encoder_suggest="zlib"
2653 truehd_decoder_select="mlp_parser"
2654 truehd_encoder_select="lpc"
2655 truemotion2_decoder_select="bswapdsp"
2656 truespeech_decoder_select="bswapdsp"
2657 tscc_decoder_deps="zlib"
2658 twinvq_decoder_select="mdct lsp sinewin"
2659 txd_decoder_select="texturedsp"
2660 utvideo_decoder_select="bswapdsp llviddsp"
2661 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2662 vble_decoder_select="llviddsp"
2663 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2664 vc1image_decoder_select="vc1_decoder"
2665 vorbis_decoder_select="mdct"
2666 vorbis_encoder_select="audio_frame_queue mdct"
2667 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2668 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2669 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2670 vp6a_decoder_select="vp6_decoder"
2671 vp6f_decoder_select="vp6_decoder"
2672 vp7_decoder_select="h264pred videodsp vp8dsp"
2673 vp8_decoder_select="h264pred videodsp vp8dsp"
2674 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2675 webp_decoder_select="vp8_decoder exif"
2676 wmalossless_decoder_select="llauddsp"
2677 wmapro_decoder_select="mdct sinewin wma_freqs"
2678 wmav1_decoder_select="mdct sinewin wma_freqs"
2679 wmav1_encoder_select="mdct sinewin wma_freqs"
2680 wmav2_decoder_select="mdct sinewin wma_freqs"
2681 wmav2_encoder_select="mdct sinewin wma_freqs"
2682 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2683 wmv1_decoder_select="h263_decoder"
2684 wmv1_encoder_select="h263_encoder"
2685 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2686 wmv2_encoder_select="h263_encoder wmv2dsp"
2687 wmv3_decoder_select="vc1_decoder"
2688 wmv3image_decoder_select="wmv3_decoder"
2689 xma1_decoder_select="wmapro_decoder"
2690 xma2_decoder_select="wmapro_decoder"
2691 zerocodec_decoder_deps="zlib"
2692 zlib_decoder_deps="zlib"
2693 zlib_encoder_deps="zlib"
2694 zmbv_decoder_deps="zlib"
2695 zmbv_encoder_deps="zlib"
2696
2697 # hardware accelerators
2698 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2699 cuda_deps="ffnvcodec"
2700 cuvid_deps="ffnvcodec"
2701 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2702 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2703 ffnvcodec_deps_any="libdl LoadLibrary"
2704 nvdec_deps="ffnvcodec"
2705 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2706 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2707 xvmc_deps="X11_extensions_XvMClib_h"
2708
2709 h263_vaapi_hwaccel_deps="vaapi"
2710 h263_vaapi_hwaccel_select="h263_decoder"
2711 h263_videotoolbox_hwaccel_deps="videotoolbox"
2712 h263_videotoolbox_hwaccel_select="h263_decoder"
2713 h264_d3d11va_hwaccel_deps="d3d11va"
2714 h264_d3d11va_hwaccel_select="h264_decoder"
2715 h264_d3d11va2_hwaccel_deps="d3d11va"
2716 h264_d3d11va2_hwaccel_select="h264_decoder"
2717 h264_dxva2_hwaccel_deps="dxva2"
2718 h264_dxva2_hwaccel_select="h264_decoder"
2719 h264_nvdec_hwaccel_deps="nvdec"
2720 h264_nvdec_hwaccel_select="h264_decoder"
2721 h264_vaapi_hwaccel_deps="vaapi"
2722 h264_vaapi_hwaccel_select="h264_decoder"
2723 h264_vdpau_hwaccel_deps="vdpau"
2724 h264_vdpau_hwaccel_select="h264_decoder"
2725 h264_videotoolbox_hwaccel_deps="videotoolbox"
2726 h264_videotoolbox_hwaccel_select="h264_decoder"
2727 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2728 hevc_d3d11va_hwaccel_select="hevc_decoder"
2729 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2730 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2731 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2732 hevc_dxva2_hwaccel_select="hevc_decoder"
2733 hevc_nvdec_hwaccel_deps="nvdec"
2734 hevc_nvdec_hwaccel_select="hevc_decoder"
2735 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2736 hevc_vaapi_hwaccel_select="hevc_decoder"
2737 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2738 hevc_vdpau_hwaccel_select="hevc_decoder"
2739 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2740 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2741 mjpeg_nvdec_hwaccel_deps="nvdec"
2742 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2743 mjpeg_vaapi_hwaccel_deps="vaapi"
2744 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2745 mpeg_xvmc_hwaccel_deps="xvmc"
2746 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2747 mpeg1_nvdec_hwaccel_deps="nvdec"
2748 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2749 mpeg1_vdpau_hwaccel_deps="vdpau"
2750 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2751 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2752 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2753 mpeg1_xvmc_hwaccel_deps="xvmc"
2754 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2755 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2756 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2757 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2758 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2759 mpeg2_dxva2_hwaccel_deps="dxva2"
2760 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2761 mpeg2_nvdec_hwaccel_deps="nvdec"
2762 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2763 mpeg2_vaapi_hwaccel_deps="vaapi"
2764 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2765 mpeg2_vdpau_hwaccel_deps="vdpau"
2766 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2767 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2768 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2769 mpeg2_xvmc_hwaccel_deps="xvmc"
2770 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2771 mpeg4_nvdec_hwaccel_deps="nvdec"
2772 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2773 mpeg4_vaapi_hwaccel_deps="vaapi"
2774 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2775 mpeg4_vdpau_hwaccel_deps="vdpau"
2776 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2777 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2778 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2779 vc1_d3d11va_hwaccel_deps="d3d11va"
2780 vc1_d3d11va_hwaccel_select="vc1_decoder"
2781 vc1_d3d11va2_hwaccel_deps="d3d11va"
2782 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2783 vc1_dxva2_hwaccel_deps="dxva2"
2784 vc1_dxva2_hwaccel_select="vc1_decoder"
2785 vc1_nvdec_hwaccel_deps="nvdec"
2786 vc1_nvdec_hwaccel_select="vc1_decoder"
2787 vc1_vaapi_hwaccel_deps="vaapi"
2788 vc1_vaapi_hwaccel_select="vc1_decoder"
2789 vc1_vdpau_hwaccel_deps="vdpau"
2790 vc1_vdpau_hwaccel_select="vc1_decoder"
2791 vp8_nvdec_hwaccel_deps="nvdec"
2792 vp8_nvdec_hwaccel_select="vp8_decoder"
2793 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2794 vp8_vaapi_hwaccel_select="vp8_decoder"
2795 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2796 vp9_d3d11va_hwaccel_select="vp9_decoder"
2797 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2798 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2799 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2800 vp9_dxva2_hwaccel_select="vp9_decoder"
2801 vp9_nvdec_hwaccel_deps="nvdec"
2802 vp9_nvdec_hwaccel_select="vp9_decoder"
2803 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2804 vp9_vaapi_hwaccel_select="vp9_decoder"
2805 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2806 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2807 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2808 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2809 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2810 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2811
2812 # hardware-accelerated codecs
2813 omx_deps="libdl pthreads"
2814 omx_rpi_select="omx"
2815 qsv_deps="libmfx"
2816 qsvdec_select="qsv"
2817 qsvenc_select="qsv"
2818 qsvvpp_select="qsv"
2819 vaapi_encode_deps="vaapi"
2820 v4l2_m2m_deps_any="linux_videodev2_h"
2821
2822 hwupload_cuda_filter_deps="ffnvcodec"
2823 scale_npp_filter_deps="ffnvcodec libnpp"
2824 scale_cuda_filter_deps="cuda_sdk"
2825 thumbnail_cuda_filter_deps="cuda_sdk"
2826
2827 amf_deps_any="libdl LoadLibrary"
2828 nvenc_deps="ffnvcodec"
2829 nvenc_deps_any="libdl LoadLibrary"
2830 nvenc_encoder_deps="nvenc"
2831
2832 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2833 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2834 h264_amf_encoder_deps="amf"
2835 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2836 h264_cuvid_decoder_deps="cuvid"
2837 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2838 h264_mediacodec_decoder_deps="mediacodec"
2839 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2840 h264_mmal_decoder_deps="mmal"
2841 h264_nvenc_encoder_deps="nvenc"
2842 h264_omx_encoder_deps="omx"
2843 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2844 h264_qsv_encoder_select="qsvenc"
2845 h264_rkmpp_decoder_deps="rkmpp"
2846 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2847 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2848 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2849 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2850 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2851 hevc_amf_encoder_deps="amf"
2852 hevc_cuvid_decoder_deps="cuvid"
2853 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2854 hevc_mediacodec_decoder_deps="mediacodec"
2855 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2856 hevc_nvenc_encoder_deps="nvenc"
2857 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2858 hevc_qsv_encoder_select="hevcparse qsvenc"
2859 hevc_rkmpp_decoder_deps="rkmpp"
2860 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2861 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2862 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2863 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2864 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2865 mjpeg_cuvid_decoder_deps="cuvid"
2866 mjpeg_qsv_encoder_deps="libmfx"
2867 mjpeg_qsv_encoder_select="qsvenc"
2868 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2869 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2870 mpeg1_cuvid_decoder_deps="cuvid"
2871 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2872 mpeg2_crystalhd_decoder_select="crystalhd"
2873 mpeg2_cuvid_decoder_deps="cuvid"
2874 mpeg2_mmal_decoder_deps="mmal"
2875 mpeg2_mediacodec_decoder_deps="mediacodec"
2876 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2877 mpeg2_qsv_encoder_select="qsvenc"
2878 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2879 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2880 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2881 mpeg4_crystalhd_decoder_select="crystalhd"
2882 mpeg4_cuvid_decoder_deps="cuvid"
2883 mpeg4_mediacodec_decoder_deps="mediacodec"
2884 mpeg4_mmal_decoder_deps="mmal"
2885 mpeg4_omx_encoder_deps="omx"
2886 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2887 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2888 msmpeg4_crystalhd_decoder_select="crystalhd"
2889 nvenc_h264_encoder_select="h264_nvenc_encoder"
2890 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2891 vc1_crystalhd_decoder_select="crystalhd"
2892 vc1_cuvid_decoder_deps="cuvid"
2893 vc1_mmal_decoder_deps="mmal"
2894 vc1_qsv_decoder_select="qsvdec vc1_parser"
2895 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2896 vp8_cuvid_decoder_deps="cuvid"
2897 vp8_mediacodec_decoder_deps="mediacodec"
2898 vp8_qsv_decoder_select="qsvdec vp8_parser"
2899 vp8_rkmpp_decoder_deps="rkmpp"
2900 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2901 vp8_vaapi_encoder_select="vaapi_encode"
2902 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2903 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2904 vp9_cuvid_decoder_deps="cuvid"
2905 vp9_mediacodec_decoder_deps="mediacodec"
2906 vp9_rkmpp_decoder_deps="rkmpp"
2907 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2908 vp9_vaapi_encoder_select="vaapi_encode"
2909 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2910 wmv3_crystalhd_decoder_select="crystalhd"
2911
2912 # parsers
2913 aac_parser_select="adts_header"
2914 h264_parser_select="golomb h264dsp h264parse"
2915 hevc_parser_select="hevcparse"
2916 mpegaudio_parser_select="mpegaudioheader"
2917 mpegvideo_parser_select="mpegvideo"
2918 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2919 vc1_parser_select="vc1dsp"
2920
2921 # bitstream_filters
2922 aac_adtstoasc_bsf_select="adts_header"
2923 filter_units_bsf_select="cbs"
2924 h264_metadata_bsf_deps="const_nan"
2925 h264_metadata_bsf_select="cbs_h264"
2926 h264_redundant_pps_bsf_select="cbs_h264"
2927 hevc_metadata_bsf_select="cbs_h265"
2928 mjpeg2jpeg_bsf_select="jpegtables"
2929 mpeg2_metadata_bsf_select="cbs_mpeg2"
2930 trace_headers_bsf_select="cbs"
2931
2932 # external libraries
2933 aac_at_decoder_deps="audiotoolbox"
2934 aac_at_decoder_select="aac_adtstoasc_bsf"
2935 ac3_at_decoder_deps="audiotoolbox"
2936 ac3_at_decoder_select="ac3_parser"
2937 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2938 alac_at_decoder_deps="audiotoolbox"
2939 amr_nb_at_decoder_deps="audiotoolbox"
2940 avisynth_deps_any="libdl LoadLibrary"
2941 avisynth_demuxer_deps="avisynth"
2942 avisynth_demuxer_select="riffdec"
2943 eac3_at_decoder_deps="audiotoolbox"
2944 eac3_at_decoder_select="ac3_parser"
2945 gsm_ms_at_decoder_deps="audiotoolbox"
2946 ilbc_at_decoder_deps="audiotoolbox"
2947 mp1_at_decoder_deps="audiotoolbox"
2948 mp2_at_decoder_deps="audiotoolbox"
2949 mp3_at_decoder_deps="audiotoolbox"
2950 mp1_at_decoder_select="mpegaudioheader"
2951 mp2_at_decoder_select="mpegaudioheader"
2952 mp3_at_decoder_select="mpegaudioheader"
2953 pcm_alaw_at_decoder_deps="audiotoolbox"
2954 pcm_mulaw_at_decoder_deps="audiotoolbox"
2955 qdmc_at_decoder_deps="audiotoolbox"
2956 qdm2_at_decoder_deps="audiotoolbox"
2957 aac_at_encoder_deps="audiotoolbox"
2958 aac_at_encoder_select="audio_frame_queue"
2959 alac_at_encoder_deps="audiotoolbox"
2960 alac_at_encoder_select="audio_frame_queue"
2961 ilbc_at_encoder_deps="audiotoolbox"
2962 ilbc_at_encoder_select="audio_frame_queue"
2963 pcm_alaw_at_encoder_deps="audiotoolbox"
2964 pcm_alaw_at_encoder_select="audio_frame_queue"
2965 pcm_mulaw_at_encoder_deps="audiotoolbox"
2966 pcm_mulaw_at_encoder_select="audio_frame_queue"
2967 chromaprint_muxer_deps="chromaprint"
2968 h264_videotoolbox_encoder_deps="pthreads"
2969 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2970 hevc_videotoolbox_encoder_deps="pthreads"
2971 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
2972 libcelt_decoder_deps="libcelt"
2973 libcodec2_decoder_deps="libcodec2"
2974 libcodec2_encoder_deps="libcodec2"
2975 libfdk_aac_decoder_deps="libfdk_aac"
2976 libfdk_aac_encoder_deps="libfdk_aac"
2977 libfdk_aac_encoder_select="audio_frame_queue"
2978 libgme_demuxer_deps="libgme"
2979 libgsm_decoder_deps="libgsm"
2980 libgsm_encoder_deps="libgsm"
2981 libgsm_ms_decoder_deps="libgsm"
2982 libgsm_ms_encoder_deps="libgsm"
2983 libilbc_decoder_deps="libilbc"
2984 libilbc_encoder_deps="libilbc"
2985 libkvazaar_encoder_deps="libkvazaar"
2986 libmodplug_demuxer_deps="libmodplug"
2987 libmp3lame_encoder_deps="libmp3lame"
2988 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2989 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2990 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2991 libopencore_amrnb_encoder_select="audio_frame_queue"
2992 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2993 libopenh264_decoder_deps="libopenh264"
2994 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2995 libopenh264_encoder_deps="libopenh264"
2996 libopenjpeg_decoder_deps="libopenjpeg"
2997 libopenjpeg_encoder_deps="libopenjpeg"
2998 libopenmpt_demuxer_deps="libopenmpt"
2999 libopus_decoder_deps="libopus"
3000 libopus_encoder_deps="libopus"
3001 libopus_encoder_select="audio_frame_queue"
3002 librsvg_decoder_deps="librsvg"
3003 libshine_encoder_deps="libshine"
3004 libshine_encoder_select="audio_frame_queue"
3005 libspeex_decoder_deps="libspeex"
3006 libspeex_encoder_deps="libspeex"
3007 libspeex_encoder_select="audio_frame_queue"
3008 libtheora_encoder_deps="libtheora"
3009 libtwolame_encoder_deps="libtwolame"
3010 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3011 libvorbis_decoder_deps="libvorbis"
3012 libvorbis_encoder_deps="libvorbis libvorbisenc"
3013 libvorbis_encoder_select="audio_frame_queue"
3014 libvpx_vp8_decoder_deps="libvpx"
3015 libvpx_vp8_encoder_deps="libvpx"
3016 libvpx_vp9_decoder_deps="libvpx"
3017 libvpx_vp9_encoder_deps="libvpx"
3018 libwavpack_encoder_deps="libwavpack"
3019 libwavpack_encoder_select="audio_frame_queue"
3020 libwebp_encoder_deps="libwebp"
3021 libwebp_anim_encoder_deps="libwebp"
3022 libx262_encoder_deps="libx262"
3023 libx264_encoder_deps="libx264"
3024 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3025 libx264rgb_encoder_select="libx264_encoder"
3026 libx265_encoder_deps="libx265"
3027 libxavs_encoder_deps="libxavs"
3028 libxvid_encoder_deps="libxvid"
3029 libzvbi_teletext_decoder_deps="libzvbi"
3030 videotoolbox_suggest="coreservices"
3031 videotoolbox_deps="corefoundation coremedia corevideo"
3032 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3033
3034 # demuxers / muxers
3035 ac3_demuxer_select="ac3_parser"
3036 aiff_muxer_select="iso_media"
3037 asf_demuxer_select="riffdec"
3038 asf_o_demuxer_select="riffdec"
3039 asf_muxer_select="riffenc"
3040 asf_stream_muxer_select="asf_muxer"
3041 avi_demuxer_select="iso_media riffdec exif"
3042 avi_muxer_select="riffenc"
3043 caf_demuxer_select="iso_media riffdec"
3044 caf_muxer_select="iso_media"
3045 dash_muxer_select="mp4_muxer"
3046 dash_demuxer_deps="libxml2"
3047 dirac_demuxer_select="dirac_parser"
3048 dts_demuxer_select="dca_parser"
3049 dtshd_demuxer_select="dca_parser"
3050 dv_demuxer_select="dvprofile"
3051 dv_muxer_select="dvprofile"
3052 dxa_demuxer_select="riffdec"
3053 eac3_demuxer_select="ac3_parser"
3054 f4v_muxer_select="mov_muxer"
3055 fifo_muxer_deps="threads"
3056 flac_demuxer_select="flac_parser"
3057 hds_muxer_select="flv_muxer"
3058 hls_muxer_select="mpegts_muxer"
3059 hls_muxer_suggest="gcrypt openssl"
3060 image2_alias_pix_demuxer_select="image2_demuxer"
3061 image2_brender_pix_demuxer_select="image2_demuxer"
3062 ipod_muxer_select="mov_muxer"
3063 ismv_muxer_select="mov_muxer"
3064 matroska_audio_muxer_select="matroska_muxer"
3065 matroska_demuxer_select="iso_media riffdec"
3066 matroska_demuxer_suggest="bzlib lzo zlib"
3067 matroska_muxer_select="iso_media riffenc"
3068 mmf_muxer_select="riffenc"
3069 mov_demuxer_select="iso_media riffdec"
3070 mov_demuxer_suggest="zlib"
3071 mov_muxer_select="iso_media riffenc rtpenc_chain"
3072 mp3_demuxer_select="mpegaudio_parser"
3073 mp3_muxer_select="mpegaudioheader"
3074 mp4_muxer_select="mov_muxer"
3075 mpegts_demuxer_select="iso_media"
3076 mpegts_muxer_select="adts_muxer latm_muxer"
3077 mpegtsraw_demuxer_select="mpegts_demuxer"
3078 mxf_d10_muxer_select="mxf_muxer"
3079 mxf_opatom_muxer_select="mxf_muxer"
3080 nut_muxer_select="riffenc"
3081 nuv_demuxer_select="riffdec"
3082 oga_muxer_select="ogg_muxer"
3083 ogg_demuxer_select="dirac_parse"
3084 ogv_muxer_select="ogg_muxer"
3085 opus_muxer_select="ogg_muxer"
3086 psp_muxer_select="mov_muxer"
3087 rtp_demuxer_select="sdp_demuxer"
3088 rtp_muxer_select="golomb"
3089 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3090 rtsp_demuxer_select="http_protocol rtpdec"
3091 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3092 sap_demuxer_select="sdp_demuxer"
3093 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3094 sdp_demuxer_select="rtpdec"
3095 smoothstreaming_muxer_select="ismv_muxer"
3096 spdif_demuxer_select="adts_header"
3097 spdif_muxer_select="adts_header"
3098 spx_muxer_select="ogg_muxer"
3099 swf_demuxer_suggest="zlib"
3100 tak_demuxer_select="tak_parser"
3101 tg2_muxer_select="mov_muxer"
3102 tgp_muxer_select="mov_muxer"
3103 vobsub_demuxer_select="mpegps_demuxer"
3104 w64_demuxer_select="wav_demuxer"
3105 w64_muxer_select="wav_muxer"
3106 wav_demuxer_select="riffdec"
3107 wav_muxer_select="riffenc"
3108 webm_muxer_select="iso_media riffenc"
3109 webm_dash_manifest_demuxer_select="matroska_demuxer"
3110 wtv_demuxer_select="mpegts_demuxer riffdec"
3111 wtv_muxer_select="mpegts_muxer riffenc"
3112 xmv_demuxer_select="riffdec"
3113 xwma_demuxer_select="riffdec"
3114
3115 # indevs / outdevs
3116 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3117 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3118 alsa_indev_deps="alsa"
3119 alsa_outdev_deps="alsa"
3120 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3121 avfoundation_indev_suggest="coregraphics applicationservices"
3122 avfoundation_indev_extralibs="-framework Foundation"
3123 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3124 caca_outdev_deps="libcaca"
3125 decklink_deps_any="libdl LoadLibrary"
3126 decklink_indev_deps="decklink threads"
3127 decklink_indev_extralibs="-lstdc++"
3128 decklink_outdev_deps="decklink threads"
3129 decklink_outdev_extralibs="-lstdc++"
3130 libndi_newtek_indev_deps="libndi_newtek"
3131 libndi_newtek_indev_extralibs="-lndi"
3132 libndi_newtek_outdev_deps="libndi_newtek"
3133 libndi_newtek_outdev_extralibs="-lndi"
3134 dshow_indev_deps="IBaseFilter"
3135 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3136 fbdev_indev_deps="linux_fb_h"
3137 fbdev_outdev_deps="linux_fb_h"
3138 gdigrab_indev_deps="CreateDIBSection"
3139 gdigrab_indev_extralibs="-lgdi32"
3140 gdigrab_indev_select="bmp_decoder"
3141 iec61883_indev_deps="libiec61883"
3142 jack_indev_deps="libjack"
3143 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3144 kmsgrab_indev_deps="libdrm"
3145 lavfi_indev_deps="avfilter"
3146 libcdio_indev_deps="libcdio"
3147 libdc1394_indev_deps="libdc1394"
3148 openal_indev_deps="openal"
3149 opengl_outdev_deps="opengl"
3150 oss_indev_deps_any="sys_soundcard_h"
3151 oss_outdev_deps_any="sys_soundcard_h"
3152 pulse_indev_deps="libpulse"
3153 pulse_outdev_deps="libpulse"
3154 sdl2_outdev_deps="sdl2"
3155 sndio_indev_deps="sndio"
3156 sndio_outdev_deps="sndio"
3157 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3158 v4l2_indev_suggest="libv4l2"
3159 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3160 v4l2_outdev_suggest="libv4l2"
3161 vfwcap_indev_deps="vfw32 vfwcap_defines"
3162 xcbgrab_indev_deps="libxcb"
3163 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3164 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3165 xv_outdev_extralibs="-lXv -lX11 -lXext"
3166
3167 # protocols
3168 async_protocol_deps="threads"
3169 bluray_protocol_deps="libbluray"
3170 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3171 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3172 ffrtmpcrypt_protocol_select="tcp_protocol"
3173 ffrtmphttp_protocol_conflict="librtmp_protocol"
3174 ffrtmphttp_protocol_select="http_protocol"
3175 ftp_protocol_select="tcp_protocol"
3176 gopher_protocol_select="network"
3177 http_protocol_select="tcp_protocol"
3178 http_protocol_suggest="zlib"
3179 httpproxy_protocol_select="tcp_protocol"
3180 httpproxy_protocol_suggest="zlib"
3181 https_protocol_select="tls_protocol"
3182 https_protocol_suggest="zlib"
3183 icecast_protocol_select="http_protocol"
3184 librtmp_protocol_deps="librtmp"
3185 librtmpe_protocol_deps="librtmp"
3186 librtmps_protocol_deps="librtmp"
3187 librtmpt_protocol_deps="librtmp"
3188 librtmpte_protocol_deps="librtmp"
3189 libsmbclient_protocol_deps="libsmbclient gplv3"
3190 libssh_protocol_deps="libssh"
3191 libtls_conflict="openssl gnutls"
3192 mmsh_protocol_select="http_protocol"
3193 mmst_protocol_select="network"
3194 rtmp_protocol_conflict="librtmp_protocol"
3195 rtmp_protocol_select="tcp_protocol"
3196 rtmp_protocol_suggest="zlib"
3197 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3198 rtmpe_protocol_suggest="zlib"
3199 rtmps_protocol_conflict="librtmp_protocol"
3200 rtmps_protocol_select="tls_protocol"
3201 rtmps_protocol_suggest="zlib"
3202 rtmpt_protocol_select="ffrtmphttp_protocol"
3203 rtmpt_protocol_suggest="zlib"
3204 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3205 rtmpte_protocol_suggest="zlib"
3206 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3207 rtmpts_protocol_suggest="zlib"
3208 rtp_protocol_select="udp_protocol"
3209 schannel_conflict="openssl gnutls libtls"
3210 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3211 sctp_protocol_select="network"
3212 securetransport_conflict="openssl gnutls libtls"
3213 srtp_protocol_select="rtp_protocol srtp"
3214 tcp_protocol_select="network"
3215 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"
3216 tls_protocol_select="tcp_protocol"
3217 udp_protocol_select="network"
3218 udplite_protocol_select="network"
3219 unix_protocol_deps="sys_un_h"
3220 unix_protocol_select="network"
3221
3222 # filters
3223 afftfilt_filter_deps="avcodec"
3224 afftfilt_filter_select="fft"
3225 afir_filter_deps="avcodec"
3226 afir_filter_select="fft"
3227 amovie_filter_deps="avcodec avformat"
3228 aresample_filter_deps="swresample"
3229 ass_filter_deps="libass"
3230 atempo_filter_deps="avcodec"
3231 atempo_filter_select="rdft"
3232 avgblur_opencl_filter_deps="opencl"
3233 azmq_filter_deps="libzmq"
3234 blackframe_filter_deps="gpl"
3235 boxblur_filter_deps="gpl"
3236 bs2b_filter_deps="libbs2b"
3237 colormatrix_filter_deps="gpl"
3238 convolution_opencl_filter_deps="opencl"
3239 convolve_filter_deps="avcodec"
3240 convolve_filter_select="fft"
3241 coreimage_filter_deps="coreimage appkit"
3242 coreimage_filter_extralibs="-framework OpenGL"
3243 coreimagesrc_filter_deps="coreimage appkit"
3244 coreimagesrc_filter_extralibs="-framework OpenGL"
3245 cover_rect_filter_deps="avcodec avformat gpl"
3246 cropdetect_filter_deps="gpl"
3247 deconvolve_filter_deps="avcodec"
3248 deconvolve_filter_select="fft"
3249 deinterlace_qsv_filter_deps="libmfx"
3250 deinterlace_vaapi_filter_deps="vaapi"
3251 delogo_filter_deps="gpl"
3252 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3253 deshake_filter_select="pixelutils"
3254 drawtext_filter_deps="libfreetype"
3255 drawtext_filter_suggest="libfontconfig libfribidi"
3256 elbg_filter_deps="avcodec"
3257 eq_filter_deps="gpl"
3258 fftfilt_filter_deps="avcodec"
3259 fftfilt_filter_select="rdft"
3260 find_rect_filter_deps="avcodec avformat gpl"
3261 firequalizer_filter_deps="avcodec"
3262 firequalizer_filter_select="rdft"
3263 flite_filter_deps="libflite"
3264 framerate_filter_select="pixelutils"
3265 frei0r_filter_deps="frei0r libdl"
3266 frei0r_src_filter_deps="frei0r libdl"
3267 fspp_filter_deps="gpl"
3268 geq_filter_deps="gpl"
3269 histeq_filter_deps="gpl"
3270 hqdn3d_filter_deps="gpl"
3271 interlace_filter_deps="gpl"
3272 kerndeint_filter_deps="gpl"
3273 ladspa_filter_deps="ladspa libdl"
3274 lv2_filter_deps="lv2"
3275 mcdeint_filter_deps="avcodec gpl"
3276 movie_filter_deps="avcodec avformat"
3277 mpdecimate_filter_deps="gpl"
3278 mpdecimate_filter_select="pixelutils"
3279 mptestsrc_filter_deps="gpl"
3280 negate_filter_deps="lut_filter"
3281 nnedi_filter_deps="gpl"
3282 ocr_filter_deps="libtesseract"
3283 ocv_filter_deps="libopencv"
3284 openclsrc_filter_deps="opencl"
3285 overlay_opencl_filter_deps="opencl"
3286 overlay_qsv_filter_deps="libmfx"
3287 overlay_qsv_filter_select="qsvvpp"
3288 owdenoise_filter_deps="gpl"
3289 pan_filter_deps="swresample"
3290 perspective_filter_deps="gpl"
3291 phase_filter_deps="gpl"
3292 pp7_filter_deps="gpl"
3293 pp_filter_deps="gpl postproc"
3294 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3295 program_opencl_filter_deps="opencl"
3296 pullup_filter_deps="gpl"
3297 removelogo_filter_deps="avcodec avformat swscale"
3298 repeatfields_filter_deps="gpl"
3299 resample_filter_deps="avresample"
3300 rubberband_filter_deps="librubberband"
3301 sab_filter_deps="gpl swscale"
3302 scale2ref_filter_deps="swscale"
3303 scale_filter_deps="swscale"
3304 scale_qsv_filter_deps="libmfx"
3305 select_filter_select="pixelutils"
3306 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3307 showcqt_filter_deps="avcodec avformat swscale"
3308 showcqt_filter_suggest="libfontconfig libfreetype"
3309 showcqt_filter_select="fft"
3310 showfreqs_filter_deps="avcodec"
3311 showfreqs_filter_select="fft"
3312 showspectrum_filter_deps="avcodec"
3313 showspectrum_filter_select="fft"
3314 showspectrumpic_filter_deps="avcodec"
3315 showspectrumpic_filter_select="fft"
3316 signature_filter_deps="gpl avcodec avformat"
3317 smartblur_filter_deps="gpl swscale"
3318 sofalizer_filter_deps="libmysofa avcodec"
3319 sofalizer_filter_select="fft"
3320 spectrumsynth_filter_deps="avcodec"
3321 spectrumsynth_filter_select="fft"
3322 spp_filter_deps="gpl avcodec"
3323 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3324 stereo3d_filter_deps="gpl"
3325 subtitles_filter_deps="avformat avcodec libass"
3326 super2xsai_filter_deps="gpl"
3327 pixfmts_super2xsai_test_deps="super2xsai_filter"
3328 tinterlace_filter_deps="gpl"
3329 tinterlace_merge_test_deps="tinterlace_filter"
3330 tinterlace_pad_test_deps="tinterlace_filter"
3331 tonemap_filter_deps="const_nan"
3332 unsharp_opencl_filter_deps="opencl"
3333 uspp_filter_deps="gpl avcodec"
3334 vaguedenoiser_filter_deps="gpl"
3335 vidstabdetect_filter_deps="libvidstab"
3336 vidstabtransform_filter_deps="libvidstab"
3337 libvmaf_filter_deps="libvmaf pthreads"
3338 zmq_filter_deps="libzmq"
3339 zoompan_filter_deps="swscale"
3340 zscale_filter_deps="libzimg const_nan"
3341 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3342 vpp_qsv_filter_deps="libmfx"
3343 vpp_qsv_filter_select="qsvvpp"
3344
3345 # examples
3346 avio_dir_cmd_deps="avformat avutil"
3347 avio_reading_deps="avformat avcodec avutil"
3348 decode_audio_example_deps="avcodec avutil"
3349 decode_video_example_deps="avcodec avutil"
3350 demuxing_decoding_example_deps="avcodec avformat avutil"
3351 encode_audio_example_deps="avcodec avutil"
3352 encode_video_example_deps="avcodec avutil"
3353 extract_mvs_example_deps="avcodec avformat avutil"
3354 filter_audio_example_deps="avfilter avutil"
3355 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3356 filtering_video_example_deps="avfilter avcodec avformat avutil"
3357 http_multiclient_example_deps="avformat avutil fork"
3358 hw_decode_example_deps="avcodec avformat avutil"
3359 metadata_example_deps="avformat avutil"
3360 muxing_example_deps="avcodec avformat avutil swscale"
3361 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3362 remuxing_example_deps="avcodec avformat avutil"
3363 resampling_audio_example_deps="avutil swresample"
3364 scaling_video_example_deps="avutil swscale"
3365 transcode_aac_example_deps="avcodec avformat swresample"
3366 transcoding_example_deps="avfilter avcodec avformat avutil"
3367 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3368 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3369
3370 # EXTRALIBS_LIST
3371 cpu_init_extralibs="pthreads_extralibs"
3372 cws2fws_extralibs="zlib_extralibs"
3373
3374 # libraries, in linking order
3375 avcodec_deps="avutil"
3376 avcodec_suggest="libm"
3377 avcodec_select="null_bsf"
3378 avdevice_deps="avformat avcodec avutil"
3379 avdevice_suggest="libm"
3380 avfilter_deps="avutil"
3381 avfilter_suggest="libm"
3382 avformat_deps="avcodec avutil"
3383 avformat_suggest="libm network zlib"
3384 avresample_deps="avutil"
3385 avresample_suggest="libm"
3386 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3387 postproc_deps="avutil gpl"
3388 postproc_suggest="libm"
3389 swresample_deps="avutil"
3390 swresample_suggest="libm libsoxr"
3391 swscale_deps="avutil"
3392 swscale_suggest="libm"
3393
3394 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3395 avfilter_extralibs="pthreads_extralibs"
3396 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3397
3398 # programs
3399 ffmpeg_deps="avcodec avfilter avformat swresample"
3400 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3401                null_filter
3402                trim_filter"
3403 ffmpeg_suggest="ole32 psapi shell32"
3404 ffplay_deps="avcodec avformat swscale swresample sdl2"
3405 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3406 ffplay_suggest="shell32"
3407 ffprobe_deps="avcodec avformat"
3408 ffprobe_suggest="shell32"
3409
3410 # documentation
3411 podpages_deps="perl"
3412 manpages_deps="perl pod2man"
3413 htmlpages_deps="perl"
3414 htmlpages_deps_any="makeinfo_html texi2html"
3415 txtpages_deps="perl makeinfo"
3416 doc_deps_any="manpages htmlpages podpages txtpages"
3417
3418 # default parameters
3419
3420 logfile="ffbuild/config.log"
3421
3422 # installation paths
3423 prefix_default="/usr/local"
3424 bindir_default='${prefix}/bin'
3425 datadir_default='${prefix}/share/ffmpeg'
3426 docdir_default='${prefix}/share/doc/ffmpeg'
3427 incdir_default='${prefix}/include'
3428 libdir_default='${prefix}/lib'
3429 mandir_default='${prefix}/share/man'
3430
3431 # toolchain
3432 ar_default="ar"
3433 cc_default="gcc"
3434 cxx_default="g++"
3435 host_cc_default="gcc"
3436 doxygen_default="doxygen"
3437 install="install"
3438 ln_s_default="ln -s -f"
3439 nm_default="nm -g"
3440 pkg_config_default=pkg-config
3441 ranlib_default="ranlib"
3442 strip_default="strip"
3443 version_script='--version-script'
3444 objformat="elf32"
3445 x86asmexe_default="nasm"
3446 windres_default="windres"
3447 nvcc_default="nvcc"
3448 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3449 striptype="direct"
3450
3451 # OS
3452 target_os_default=$(tolower $(uname -s))
3453 host_os=$target_os_default
3454
3455 # machine
3456 if test "$target_os_default" = aix; then
3457     arch_default=$(uname -p)
3458     strip_default="strip -X32_64"
3459 else
3460     arch_default=$(uname -m)
3461 fi
3462 cpu="generic"
3463 intrinsics="none"
3464
3465 # configurable options
3466 enable $PROGRAM_LIST
3467 enable $DOCUMENT_LIST
3468 enable $EXAMPLE_LIST
3469 enable $(filter_out avresample $LIBRARY_LIST)
3470 enable stripping
3471
3472 enable asm
3473 enable debug
3474 enable doc
3475 enable faan faandct faanidct
3476 enable optimizations
3477 enable runtime_cpudetect
3478 enable safe_bitstream_reader
3479 enable static
3480 enable swscale_alpha
3481 enable valgrind_backtrace
3482
3483 sws_max_filter_size_default=256
3484 set_default sws_max_filter_size
3485
3486 # internal components are enabled by default
3487 enable $EXTRALIBS_LIST
3488
3489 # Avoid external, non-system, libraries getting enabled by dependency resolution
3490 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3491
3492 # build settings
3493 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3494 LIBPREF="lib"
3495 LIBSUF=".a"
3496 FULLNAME='$(NAME)$(BUILDSUF)'
3497 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3498 SLIBPREF="lib"
3499 SLIBSUF=".so"
3500 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3501 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3502 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3503 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3504 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3505 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3506 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3507
3508 asflags_filter=echo
3509 cflags_filter=echo
3510 ldflags_filter=echo
3511
3512 AS_C='-c'
3513 AS_O='-o $@'
3514 CC_C='-c'
3515 CC_E='-E -o $@'
3516 CC_O='-o $@'
3517 CXX_C='-c'
3518 CXX_O='-o $@'
3519 OBJCC_C='-c'
3520 OBJCC_E='-E -o $@'
3521 OBJCC_O='-o $@'
3522 X86ASM_O='-o $@'
3523 LD_O='-o $@'
3524 LD_LIB='-l%'
3525 LD_PATH='-L'
3526 HOSTCC_C='-c'
3527 HOSTCC_E='-E -o $@'
3528 HOSTCC_O='-o $@'
3529 HOSTLD_O='-o $@'
3530 NVCC_C='-c'
3531 NVCC_O='-o $@'
3532
3533 host_extralibs='-lm'
3534 host_cflags_filter=echo
3535 host_ldflags_filter=echo
3536
3537 target_path='$(CURDIR)'
3538
3539 # since the object filename is not given with the -MM flag, the compiler
3540 # is only able to print the basename, and we must add the path ourselves
3541 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3542 DEPFLAGS='-MM'
3543
3544 mkdir -p ffbuild
3545
3546 # find source path
3547 if test -f configure; then
3548     source_path=.
3549 else
3550     source_path=$(cd $(dirname "$0"); pwd)
3551     case "$source_path" in
3552         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3553     esac
3554     test -e "$source_path/config.h" &&
3555         die "Out of tree builds are impossible with config.h in source dir."
3556 fi
3557
3558 for v in "$@"; do
3559     r=${v#*=}
3560     l=${v%"$r"}
3561     r=$(sh_quote "$r")
3562     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3563 done
3564
3565 find_things(){
3566     thing=$1
3567     pattern=$2
3568     file=$source_path/$3
3569     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3570 }
3571
3572 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3573
3574 find_things_extern(){
3575     thing=$1
3576     pattern=$2
3577     file=$source_path/$3
3578     out=${4:-$thing}
3579     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3580 }
3581
3582 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3583 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3584 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3585 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3586 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3587 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3588 CODEC_LIST="
3589     $ENCODER_LIST
3590     $DECODER_LIST
3591 "
3592 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)
3593 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3594 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3595 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3596
3597 AVCODEC_COMPONENTS_LIST="
3598     $BSF_LIST
3599     $DECODER_LIST
3600     $ENCODER_LIST
3601     $HWACCEL_LIST
3602     $PARSER_LIST
3603 "
3604
3605 AVDEVICE_COMPONENTS_LIST="
3606     $INDEV_LIST
3607     $OUTDEV_LIST
3608 "
3609
3610 AVFILTER_COMPONENTS_LIST="
3611     $FILTER_LIST
3612 "
3613
3614 AVFORMAT_COMPONENTS_LIST="
3615     $DEMUXER_LIST
3616     $MUXER_LIST
3617     $PROTOCOL_LIST
3618 "
3619
3620 ALL_COMPONENTS="
3621     $AVCODEC_COMPONENTS_LIST
3622     $AVDEVICE_COMPONENTS_LIST
3623     $AVFILTER_COMPONENTS_LIST
3624     $AVFORMAT_COMPONENTS_LIST
3625 "
3626
3627 for n in $COMPONENT_LIST; do
3628     v=$(toupper ${n%s})_LIST
3629     eval enable \$$v
3630     eval ${n}_if_any="\$$v"
3631 done
3632
3633 enable $ARCH_EXT_LIST
3634
3635 die_unknown(){
3636     echo "Unknown option \"$1\"."
3637     echo "See $0 --help for available options."
3638     exit 1
3639 }
3640
3641 print_in_columns() {
3642     cols=$(expr $ncols / 24)
3643     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3644 }
3645
3646 show_list() {
3647     suffix=_$1
3648     shift
3649     echo $* | sed s/$suffix//g | print_in_columns
3650     exit 0
3651 }
3652
3653 rand_list(){
3654     IFS=', '
3655     set -- $*
3656     unset IFS
3657     for thing; do
3658         comp=${thing%:*}
3659         prob=${thing#$comp}
3660         prob=${prob#:}
3661         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3662         echo "prob ${prob:-0.5}"
3663         printf '%s\n' $comp
3664     done
3665 }
3666
3667 do_random(){
3668     action=$1
3669     shift
3670     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3671     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3672 }
3673
3674 for opt do
3675     optval="${opt#*=}"
3676     case "$opt" in
3677         --extra-ldflags=*)
3678             add_ldflags $optval
3679         ;;
3680         --extra-ldexeflags=*)
3681             add_ldexeflags $optval
3682         ;;
3683         --extra-ldsoflags=*)
3684             add_ldsoflags $optval
3685         ;;
3686         --extra-ldlibflags=*)
3687             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3688                  "removed in the future. Use --extra-ldsoflags instead."
3689             add_ldsoflags $optval
3690         ;;
3691         --extra-libs=*)
3692             add_extralibs $optval
3693         ;;
3694         --disable-devices)
3695             disable $INDEV_LIST $OUTDEV_LIST
3696         ;;
3697         --enable-debug=*)
3698             debuglevel="$optval"
3699         ;;
3700         --disable-programs)
3701             disable $PROGRAM_LIST
3702         ;;
3703         --disable-everything)
3704             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3705         ;;
3706         --disable-all)
3707             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3708             disable $LIBRARY_LIST $PROGRAM_LIST doc
3709             enable avutil
3710         ;;
3711         --enable-random|--disable-random)
3712             action=${opt%%-random}
3713             do_random ${action#--} $COMPONENT_LIST
3714         ;;
3715         --enable-random=*|--disable-random=*)
3716             action=${opt%%-random=*}
3717             do_random ${action#--} $optval
3718         ;;
3719         --enable-sdl)
3720             enable sdl2
3721         ;;
3722         --enable-*=*|--disable-*=*)
3723             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3724             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3725             eval list=\$$(toupper $thing)_LIST
3726             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3727             list=$(filter "$name" $list)
3728             [ "$list" = "" ] && warn "Option $opt did not match anything"
3729             $action $list
3730         ;;
3731         --enable-yasm|--disable-yasm)
3732             warn "The ${opt} option is only provided for compatibility and will be\n"\
3733                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3734             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3735         ;;
3736         --yasmexe=*)
3737             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3738                  "removed in the future. Use --x86asmexe instead."
3739             x86asmexe="$optval"
3740         ;;
3741         --enable-?*|--disable-?*)
3742             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3743             if is_in $option $COMPONENT_LIST; then
3744                 test $action = disable && action=unset
3745                 eval $action \$$(toupper ${option%s})_LIST
3746             elif is_in $option $CMDLINE_SELECT; then
3747                 $action $option
3748             else
3749                 die_unknown $opt
3750             fi
3751         ;;
3752         --list-*)
3753             NAME="${opt#--list-}"
3754             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3755             NAME=${NAME%s}
3756             eval show_list $NAME \$$(toupper $NAME)_LIST
3757         ;;
3758         --help|-h) show_help
3759         ;;
3760         --quiet|-q) quiet=yes
3761         ;;
3762         --fatal-warnings) enable fatal_warnings
3763         ;;
3764         --libfuzzer=*)
3765             libfuzzer_path="$optval"
3766         ;;
3767         *)
3768             optname="${opt%%=*}"
3769             optname="${optname#--}"
3770             optname=$(echo "$optname" | sed 's/-/_/g')
3771             if is_in $optname $CMDLINE_SET; then
3772                 eval $optname='$optval'
3773             elif is_in $optname $CMDLINE_APPEND; then
3774                 append $optname "$optval"
3775             else
3776                 die_unknown $opt
3777             fi
3778         ;;
3779     esac
3780 done
3781
3782 for e in $env; do
3783     eval "export $e"
3784 done
3785
3786 if disabled autodetect; then
3787
3788     # Unless iconv is explicitely disabled by the user, we still want to probe
3789     # for the iconv from the libc.
3790     disabled iconv || enable libc_iconv
3791
3792     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3793     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3794 fi
3795 # Mark specifically enabled, but normally autodetected libraries as requested.
3796 for lib in $AUTODETECT_LIBS; do
3797     enabled $lib && request $lib
3798 done
3799 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3800 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3801 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3802
3803 disabled logging && logfile=/dev/null
3804
3805 # command line configuration sanity checks
3806
3807 # we need to build at least one lib type
3808 if ! enabled_any static shared; then
3809     cat <<EOF
3810 At least one library type must be built.
3811 Specify --enable-static to build the static libraries or --enable-shared to
3812 build the shared libraries as well. To only build the shared libraries specify
3813 --disable-static in addition to --enable-shared.
3814 EOF
3815     exit 1
3816 fi
3817
3818 die_license_disabled() {
3819     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3820 }
3821
3822 die_license_disabled_gpl() {
3823     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3824 }
3825
3826 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3827 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3828
3829 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3830 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3831
3832 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3833
3834 if enabled nonfree; then
3835     license="nonfree and unredistributable"
3836 elif enabled gplv3; then
3837     license="GPL version 3 or later"
3838 elif enabled lgplv3; then
3839     license="LGPL version 3 or later"
3840 elif enabled gpl; then
3841     license="GPL version 2 or later"
3842 else
3843     license="LGPL version 2.1 or later"
3844 fi
3845
3846 enabled_all gnutls openssl &&
3847     die "GnuTLS and OpenSSL must not be enabled at the same time."
3848
3849 # Disable all the library-specific components if the library itself
3850 # is disabled, see AVCODEC_LIST and following _LIST variables.
3851
3852 disable_components(){
3853     disabled ${1} && disable $(
3854         eval components="\$$(toupper ${1})_COMPONENTS"
3855         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3856     )
3857 }
3858
3859 map 'disable_components $v' $LIBRARY_LIST
3860
3861 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3862 set >> $logfile
3863
3864 test -n "$valgrind" && toolchain="valgrind-memcheck"
3865
3866 enabled ossfuzz && {
3867     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3868     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3869 }
3870
3871 case "$toolchain" in
3872     *-asan)
3873         cc_default="${toolchain%-asan}"
3874         add_cflags  -fsanitize=address
3875         add_ldflags -fsanitize=address
3876     ;;
3877     *-msan)
3878         cc_default="${toolchain%-msan}"
3879         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3880         add_ldflags -fsanitize=memory
3881     ;;
3882     *-tsan)
3883         cc_default="${toolchain%-tsan}"
3884         add_cflags  -fsanitize=thread -fPIE
3885         add_ldflags -fsanitize=thread -pie
3886         case "$toolchain" in
3887             gcc-tsan)
3888                 add_cflags  -fPIC
3889                 add_ldflags -fPIC
3890                 ;;
3891         esac
3892     ;;
3893     *-usan)
3894         cc_default="${toolchain%-usan}"
3895         add_cflags  -fsanitize=undefined
3896         add_ldflags -fsanitize=undefined
3897     ;;
3898     valgrind-*)
3899         target_exec_default="valgrind"
3900         case "$toolchain" in
3901             valgrind-massif)
3902                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3903                 ;;
3904             valgrind-memcheck)
3905                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3906                 ;;
3907         esac
3908     ;;
3909     msvc)
3910         # Check whether the current MSVC version needs the C99 converter.
3911         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3912         # support enough of C99 to build ffmpeg. Default to the new
3913         # behaviour if the regexp was unable to match anything, since this
3914         # successfully parses the version number of existing supported
3915         # versions that require the converter (MSVC 2010 and 2012).
3916         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3917         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3918             cc_default="cl"
3919             cxx_default="cl"
3920         else
3921             cc_default="c99wrap cl"
3922             cxx_default="c99wrap cl"
3923         fi
3924         ld_default="$source_path/compat/windows/mslink"
3925         nm_default="dumpbin -symbols"
3926         ar_default="lib"
3927         case "$arch" in
3928         aarch64|arm64)
3929             as_default="armasm64"
3930             ;;
3931         arm*)
3932             as_default="armasm"
3933             ;;
3934         esac
3935         target_os_default="win32"
3936         # Use a relative path for TMPDIR. This makes sure all the
3937         # ffconf temp files are written with a relative path, avoiding
3938         # issues with msys/win32 path conversion for MSVC parameters
3939         # such as -Fo<file> or -out:<file>.
3940         TMPDIR=.
3941     ;;
3942     icl)
3943         cc_default="icl"
3944         ld_default="xilink"
3945         nm_default="dumpbin -symbols"
3946         ar_default="xilib"
3947         target_os_default="win32"
3948         TMPDIR=.
3949     ;;
3950     gcov)
3951         add_cflags  -fprofile-arcs -ftest-coverage
3952         add_ldflags -fprofile-arcs -ftest-coverage
3953     ;;
3954     llvm-cov)
3955         add_cflags -fprofile-arcs -ftest-coverage
3956         add_ldflags --coverage
3957     ;;
3958     hardened)
3959         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3960         add_cflags   -fno-strict-overflow -fstack-protector-all
3961         add_ldflags  -Wl,-z,relro -Wl,-z,now
3962         add_cflags   -fPIE
3963         add_ldexeflags -fPIE -pie
3964     ;;
3965     ?*)
3966         die "Unknown toolchain $toolchain"
3967     ;;
3968 esac
3969
3970 if test -n "$cross_prefix"; then
3971     test -n "$arch" && test -n "$target_os" ||
3972         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3973     enable cross_compile
3974 fi
3975
3976 ar_default="${cross_prefix}${ar_default}"
3977 cc_default="${cross_prefix}${cc_default}"
3978 cxx_default="${cross_prefix}${cxx_default}"
3979 nm_default="${cross_prefix}${nm_default}"
3980 pkg_config_default="${cross_prefix}${pkg_config_default}"
3981 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3982     ranlib_default="${cross_prefix}${ranlib_default} -D"
3983 else
3984     ranlib_default="${cross_prefix}${ranlib_default}"
3985 fi
3986 strip_default="${cross_prefix}${strip_default}"
3987 windres_default="${cross_prefix}${windres_default}"
3988
3989 sysinclude_default="${sysroot}/usr/include"
3990
3991 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3992     target_exec target_os x86asmexe nvcc
3993 enabled cross_compile || host_cc_default=$cc
3994 set_default host_cc
3995
3996 pkg_config_fail_message=""
3997 if ! $pkg_config --version >/dev/null 2>&1; then
3998     warn "$pkg_config not found, library detection may fail."
3999     pkg_config=false
4000 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4001     pkg_config_fail_message="
4002 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4003 fi
4004
4005 if test $doxygen != $doxygen_default && \
4006   ! $doxygen --version >/dev/null 2>&1; then
4007     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4008 fi
4009
4010 exesuf() {
4011     case $1 in
4012         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4013     esac
4014 }
4015
4016 EXESUF=$(exesuf $target_os)
4017 HOSTEXESUF=$(exesuf $host_os)
4018
4019 # set temporary file name
4020 : ${TMPDIR:=$TEMPDIR}
4021 : ${TMPDIR:=$TMP}
4022 : ${TMPDIR:=/tmp}
4023
4024 if [ -n "$tempprefix" ] ; then
4025     mktemp(){
4026         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4027         echo "$tmpname"
4028         mkdir "$tmpname"
4029     }
4030 elif ! test_cmd mktemp -u XXXXXX; then
4031     # simple replacement for missing mktemp
4032     # NOT SAFE FOR GENERAL USE
4033     mktemp(){
4034         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4035         echo "$tmpname"
4036         mkdir "$tmpname"
4037     }
4038 fi
4039
4040 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4041     die "Unable to create temporary directory in $TMPDIR."
4042
4043 tmpfile(){
4044     tmp="${FFTMPDIR}/test"$2
4045     (set -C; exec > $tmp) 2> /dev/null ||
4046         die "Unable to create temporary file in $FFTMPDIR."
4047     eval $1=$tmp
4048 }
4049
4050 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4051 trap 'exit 2' INT
4052
4053 tmpfile TMPASM .asm
4054 tmpfile TMPC   .c
4055 tmpfile TMPCPP .cpp
4056 tmpfile TMPE   $EXESUF
4057 tmpfile TMPH   .h
4058 tmpfile TMPM   .m
4059 tmpfile TMPO   .o
4060 tmpfile TMPS   .S
4061 tmpfile TMPSH  .sh
4062 tmpfile TMPV   .ver
4063
4064 unset -f mktemp
4065
4066 chmod +x $TMPE
4067
4068 # make sure we can execute files in $TMPDIR
4069 cat > $TMPSH 2>> $logfile <<EOF
4070 #! /bin/sh
4071 EOF
4072 chmod +x $TMPSH >> $logfile 2>&1
4073 if ! $TMPSH >> $logfile 2>&1; then
4074     cat <<EOF
4075 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4076 variable to another directory and make sure that it is not mounted noexec.
4077 EOF
4078     die "Sanity test failed."
4079 fi
4080
4081 armasm_flags(){
4082     for flag; do
4083         case $flag in
4084             # Filter out MSVC cl.exe options from cflags that shouldn't
4085             # be passed to gas-preprocessor
4086             -M[TD]*)                                            ;;
4087             *)                  echo $flag                      ;;
4088         esac
4089    done
4090 }
4091
4092 cparser_flags(){
4093     for flag; do
4094         case $flag in
4095             -Wno-switch)             echo -Wno-switch-enum ;;
4096             -Wno-format-zero-length) ;;
4097             -Wdisabled-optimization) ;;
4098             -Wno-pointer-sign)       echo -Wno-other ;;
4099             *)                       echo $flag ;;
4100         esac
4101     done
4102 }
4103
4104 msvc_common_flags(){
4105     for flag; do
4106         case $flag in
4107             # In addition to specifying certain flags under the compiler
4108             # specific filters, they must be specified here as well or else the
4109             # generic catch all at the bottom will print the original flag.
4110             -Wall)                ;;
4111             -Wextra)              ;;
4112             -std=c99)             ;;
4113             # Common flags
4114             -fomit-frame-pointer) ;;
4115             -g)                   echo -Z7 ;;
4116             -fno-math-errno)      ;;
4117             -fno-common)          ;;
4118             -fno-signed-zeros)    ;;
4119             -fPIC)                ;;
4120             -mthumb)              ;;
4121             -march=*)             ;;
4122             -lz)                  echo zlib.lib ;;
4123             -lx264)               echo libx264.lib ;;
4124             -lstdc++)             ;;
4125             -l*)                  echo ${flag#-l}.lib ;;
4126             -LARGEADDRESSAWARE)   echo $flag ;;
4127             -L*)                  echo -libpath:${flag#-L} ;;
4128             *)                    echo $flag ;;
4129         esac
4130     done
4131 }
4132
4133 msvc_flags(){
4134     msvc_common_flags "$@"
4135     for flag; do
4136         case $flag in
4137             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4138                                        -wd4554 ;;
4139             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4140                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4141                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4142                                        -wd4307 \
4143                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4144         esac
4145     done
4146 }
4147
4148 icl_flags(){
4149     msvc_common_flags "$@"
4150     for flag; do
4151         case $flag in
4152             # Despite what Intel's documentation says -Wall, which is supported
4153             # on Windows, does enable remarks so disable them here.
4154             -Wall)                echo $flag -Qdiag-disable:remark ;;
4155             -std=c99)             echo -Qstd=c99 ;;
4156             -flto)                echo -ipo ;;
4157         esac
4158     done
4159 }
4160
4161 icc_flags(){
4162     for flag; do
4163         case $flag in
4164             -flto)                echo -ipo ;;
4165             *)                    echo $flag ;;
4166         esac
4167     done
4168 }
4169
4170 suncc_flags(){
4171     for flag; do
4172         case $flag in
4173             -march=*|-mcpu=*)
4174                 case "${flag#*=}" in
4175                     native)                   echo -xtarget=native       ;;
4176                     v9|niagara)               echo -xarch=sparc          ;;
4177                     ultrasparc)               echo -xarch=sparcvis       ;;
4178                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4179                     i586|pentium)             echo -xchip=pentium        ;;
4180                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4181                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4182                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4183                     pentium4*)          echo -xtarget=pentium4           ;;
4184                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4185                     *-sse3)             echo -xarch=sse3                 ;;
4186                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4187                     bonnell)                   echo -xarch=ssse3         ;;
4188                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4189                     westmere)                  echo -xtarget=westmere    ;;
4190                     silvermont)                echo -xarch=sse4_2        ;;
4191                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4192                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4193                                                echo -xarch=avx           ;;
4194                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4195                     btver1)                    echo -xarch=amdsse4a      ;;
4196                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4197                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4198                     k8|opteron|athlon64|athlon-fx)
4199                                                echo -xarch=sse2a         ;;
4200                     athlon*)                   echo -xarch=pentium_proa  ;;
4201                 esac
4202                 ;;
4203             -std=c99)             echo -xc99              ;;
4204             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4205             -fPIC)                echo -KPIC -xcode=pic32 ;;
4206             -W*,*)                echo $flag              ;;
4207             -f*-*|-W*|-mimpure-text)                      ;;
4208             -shared)              echo -G                 ;;
4209             *)                    echo $flag              ;;
4210         esac
4211     done
4212 }
4213
4214 probe_cc(){
4215     pfx=$1
4216     _cc=$2
4217     first=$3
4218
4219     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4220     unset _ld_o _ldflags _ld_lib _ld_path
4221     unset _depflags _DEPCMD _DEPFLAGS
4222     _flags_filter=echo
4223
4224     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4225         true # no-op to avoid reading stdin in following checks
4226     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4227         _type=llvm_gcc
4228         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4229         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4230         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4231         _cflags_speed='-O3'
4232         _cflags_size='-Os'
4233     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4234         _type=gcc
4235         gcc_version=$($_cc --version | head -n1)
4236         gcc_basever=$($_cc -dumpversion)
4237         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4238         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4239         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4240         case $gcc_basever in
4241             2) ;;
4242             2.*) ;;
4243             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4244         esac
4245         if [ "$first" = true ]; then
4246             case $gcc_basever in
4247                 4.2*)
4248                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4249             esac
4250         fi
4251         _cflags_speed='-O3'
4252         _cflags_size='-Os'
4253     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4254         _type=icc
4255         _ident=$($_cc --version | head -n1)
4256         _depflags='-MMD'
4257         _cflags_speed='-O3'
4258         _cflags_size='-Os'
4259         _cflags_noopt='-O1'
4260         _flags_filter=icc_flags
4261     elif $_cc -v 2>&1 | grep -q xlc; then
4262         _type=xlc
4263         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4264         _cflags_speed='-O5'
4265         _cflags_size='-O5 -qcompact'
4266     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4267         test -d "$sysroot" || die "No valid sysroot specified."
4268         _type=armcc
4269         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4270         armcc_conf="$PWD/armcc.conf"
4271         $_cc --arm_linux_configure                 \
4272              --arm_linux_config_file="$armcc_conf" \
4273              --configure_sysroot="$sysroot"        \
4274              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4275              die "Error creating armcc configuration file."
4276         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4277         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4278         as_default="${cross_prefix}gcc"
4279         _depflags='-MMD'
4280         _cflags_speed='-O3'
4281         _cflags_size='-Os'
4282     elif $_cc -v 2>&1 | grep -q clang; then
4283         _type=clang
4284         _ident=$($_cc --version 2>/dev/null | head -n1)
4285         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4286         _cflags_speed='-O3'
4287         _cflags_size='-Oz'
4288     elif $_cc -V 2>&1 | grep -q Sun; then
4289         _type=suncc
4290         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4291         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4292         _DEPFLAGS='-xM1 -xc99'
4293         _ldflags='-std=c99'
4294         _cflags_speed='-O5'
4295         _cflags_size='-O5 -xspace'
4296         _flags_filter=suncc_flags
4297     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4298         _type=pathscale
4299         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4300         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4301         _cflags_speed='-O2'
4302         _cflags_size='-Os'
4303         _flags_filter='filter_out -Wdisabled-optimization'
4304     elif $_cc -v 2>&1 | grep -q Open64; then
4305         _type=open64
4306         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4307         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4308         _cflags_speed='-O2'
4309         _cflags_size='-Os'
4310         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4311     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4312         _type=armasm
4313         _ident=$($_cc | head -n1)
4314         # 4509: "This form of conditional instruction is deprecated"
4315         _flags="-nologo -ignore 4509"
4316         _flags_filter=armasm_flags
4317     elif $_cc 2>&1 | grep -q Intel; then
4318         _type=icl
4319         _ident=$($_cc 2>&1 | head -n1)
4320         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4321         # Not only is O3 broken on 13.x+ but it is slower on all previous
4322         # versions (tested) as well.
4323         _cflags_speed="-O2"
4324         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4325         if $_cc 2>&1 | grep -q Linker; then
4326             _ld_o='-out:$@'
4327         else
4328             _ld_o='-Fe$@'
4329         fi
4330         _cc_o='-Fo$@'
4331         _cc_e='-P'
4332         _flags_filter=icl_flags
4333         _ld_lib='lib%.a'
4334         _ld_path='-libpath:'
4335         # -Qdiag-error to make icl error when seeing certain unknown arguments
4336         _flags='-nologo -Qdiag-error:4044,10157'
4337         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4338         # with MSVC which enables it by default.
4339         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4340         disable stripping
4341     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4342         # lld can emulate multiple different linkers; in ms link.exe mode,
4343         # the -? parameter gives the help output which contains an identifyable
4344         # string, while it gives an error in other modes.
4345         _type=lld-link
4346         # The link.exe mode doesn't have a switch for getting the version,
4347         # but we can force it back to gnu mode and get the version from there.
4348         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4349         _ld_o='-out:$@'
4350         _flags_filter=msvc_flags
4351         _ld_lib='lib%.a'
4352         _ld_path='-libpath:'
4353     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4354         _type=msvc
4355         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4356         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4357         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4358         _cflags_speed="-O2"
4359         _cflags_size="-O1"
4360         _cflags_noopt="-O1"
4361         if $_cc -nologo- 2>&1 | grep -q Linker; then
4362             _ld_o='-out:$@'
4363         else
4364             _ld_o='-Fe$@'
4365         fi
4366         _cc_o='-Fo$@'
4367         _cc_e='-P -Fi$@'
4368         _flags_filter=msvc_flags
4369         _ld_lib='lib%.a'
4370         _ld_path='-libpath:'
4371         _flags='-nologo'
4372         disable stripping
4373     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4374         _type=cparser
4375         _ident=$($_cc --version | head -n1)
4376         _depflags='-MMD'
4377         _cflags_speed='-O4'
4378         _cflags_size='-O2'
4379         _flags_filter=cparser_flags
4380     fi
4381
4382     eval ${pfx}_type=\$_type
4383     eval ${pfx}_ident=\$_ident
4384 }
4385
4386 set_ccvars(){
4387     eval ${1}_C=\${_cc_c-\${${1}_C}}
4388     eval ${1}_E=\${_cc_e-\${${1}_E}}
4389     eval ${1}_O=\${_cc_o-\${${1}_O}}
4390
4391     if [ -n "$_depflags" ]; then
4392         eval ${1}_DEPFLAGS=\$_depflags
4393     else
4394         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4395         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4396         eval DEP${1}FLAGS=\$_flags
4397     fi
4398 }
4399
4400 probe_cc cc "$cc" "true"
4401 cflags_filter=$_flags_filter
4402 cflags_speed=$_cflags_speed
4403 cflags_size=$_cflags_size
4404 cflags_noopt=$_cflags_noopt
4405 add_cflags $_flags $_cflags
4406 cc_ldflags=$_ldflags
4407 set_ccvars CC
4408 set_ccvars CXX
4409
4410 probe_cc hostcc "$host_cc"
4411 host_cflags_filter=$_flags_filter
4412 host_cflags_speed=$_cflags_speed
4413 add_host_cflags  $_flags $_cflags
4414 set_ccvars HOSTCC
4415
4416 test -n "$cc_type" && enable $cc_type ||
4417     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4418
4419 : ${as_default:=$cc}
4420 : ${objcc_default:=$cc}
4421 : ${dep_cc_default:=$cc}
4422 : ${ld_default:=$cc}
4423 : ${host_ld_default:=$host_cc}
4424 set_default ar as objcc dep_cc ld ln_s host_ld windres
4425
4426 probe_cc as "$as"
4427 asflags_filter=$_flags_filter
4428 add_asflags $_flags $_cflags
4429 set_ccvars AS
4430
4431 probe_cc objcc "$objcc"
4432 objcflags_filter=$_flags_filter
4433 add_objcflags $_flags $_cflags
4434 set_ccvars OBJC
4435
4436 probe_cc ld "$ld"
4437 ldflags_filter=$_flags_filter
4438 add_ldflags $_flags $_ldflags
4439 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4440 LD_O=${_ld_o-$LD_O}
4441 LD_LIB=${_ld_lib-$LD_LIB}
4442 LD_PATH=${_ld_path-$LD_PATH}
4443
4444 probe_cc hostld "$host_ld"
4445 host_ldflags_filter=$_flags_filter
4446 add_host_ldflags $_flags $_ldflags
4447 HOSTLD_O=${_ld_o-$HOSTLD_O}
4448
4449 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4450     probe_cc depcc "$dep_cc"
4451     CCDEP=${_DEPCMD:-$DEPCMD}
4452     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4453     DEPCCFLAGS=$_flags
4454 fi
4455
4456 if $ar 2>&1 | grep -q Microsoft; then
4457     arflags="-nologo"
4458     ar_o='-out:$@'
4459 elif $ar 2>&1 | grep -q "\[D\] "; then
4460     arflags="rcD"
4461     ar_o='$@'
4462 else
4463     arflags="rc"
4464     ar_o='$@'
4465 fi
4466
4467 add_cflags $extra_cflags
4468 add_cxxflags $extra_cxxflags
4469 add_objcflags $extra_objcflags
4470 add_asflags $extra_cflags
4471
4472 if test -n "$sysroot"; then
4473     case "$cc_type" in
4474         gcc|llvm_gcc|clang)
4475             add_cppflags --sysroot="$sysroot"
4476             add_ldflags --sysroot="$sysroot"
4477         ;;
4478     esac
4479 fi
4480
4481 if test "$cpu" = host; then
4482     enabled cross_compile &&
4483         die "--cpu=host makes no sense when cross-compiling."
4484
4485     case "$cc_type" in
4486         gcc|llvm_gcc)
4487             check_native(){
4488                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4489                 sed -n "/cc1.*$1=/{
4490                             s/.*$1=\\([^ ]*\\).*/\\1/
4491                             p
4492                             q
4493                         }" $TMPE
4494             }
4495             cpu=$(check_native -march || check_native -mcpu)
4496         ;;
4497         clang)
4498             check_native(){
4499                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4500                 sed -n "/cc1.*-target-cpu /{
4501                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4502                             p
4503                             q
4504                         }" $TMPE
4505             }
4506             cpu=$(check_native -march)
4507         ;;
4508     esac
4509
4510     test "${cpu:-host}" = host &&
4511         die "--cpu=host not supported with compiler $cc"
4512 fi
4513
4514 # Deal with common $arch aliases
4515 case "$arch" in
4516     aarch64|arm64)
4517         arch="aarch64"
4518     ;;
4519     arm*|iPad*|iPhone*)
4520         arch="arm"
4521     ;;
4522     mips*|IP*)
4523         case "$arch" in
4524         *el)
4525             add_cppflags -EL
4526             add_ldflags -EL
4527         ;;
4528         *eb)
4529             add_cppflags -EB
4530             add_ldflags -EB
4531         ;;
4532         esac
4533         arch="mips"
4534     ;;
4535     parisc*|hppa*)
4536         arch="parisc"
4537     ;;
4538     "Power Macintosh"|ppc*|powerpc*)
4539         arch="ppc"
4540     ;;
4541     s390|s390x)
4542         arch="s390"
4543     ;;
4544     sh4|sh)
4545         arch="sh4"
4546     ;;
4547     sun4*|sparc*)
4548         arch="sparc"
4549     ;;
4550     tilegx|tile-gx)
4551         arch="tilegx"
4552     ;;
4553     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4554         arch="x86"
4555     ;;
4556 esac
4557
4558 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4559 enable $arch
4560
4561 # Add processor-specific flags
4562 if enabled aarch64; then
4563
4564     case $cpu in
4565         armv*)
4566             cpuflags="-march=$cpu"
4567         ;;
4568         *)
4569             cpuflags="-mcpu=$cpu"
4570         ;;
4571     esac
4572
4573 elif enabled alpha; then
4574
4575     cpuflags="-mcpu=$cpu"
4576
4577 elif enabled arm; then
4578
4579     check_arm_arch() {
4580         test_cpp_condition stddef.h \
4581             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4582             $cpuflags
4583     }
4584
4585     probe_arm_arch() {
4586         if   check_arm_arch 4;        then echo armv4
4587         elif check_arm_arch 4T;       then echo armv4t
4588         elif check_arm_arch 5;        then echo armv5
4589         elif check_arm_arch 5E;       then echo armv5e
4590         elif check_arm_arch 5T;       then echo armv5t
4591         elif check_arm_arch 5TE;      then echo armv5te
4592         elif check_arm_arch 5TEJ;     then echo armv5te
4593         elif check_arm_arch 6;        then echo armv6
4594         elif check_arm_arch 6J;       then echo armv6j
4595         elif check_arm_arch 6K;       then echo armv6k
4596         elif check_arm_arch 6Z;       then echo armv6z
4597         elif check_arm_arch 6KZ;      then echo armv6zk
4598         elif check_arm_arch 6ZK;      then echo armv6zk
4599         elif check_arm_arch 6T2;      then echo armv6t2
4600         elif check_arm_arch 7;        then echo armv7
4601         elif check_arm_arch 7A  7_A;  then echo armv7-a
4602         elif check_arm_arch 7S;       then echo armv7-a
4603         elif check_arm_arch 7R  7_R;  then echo armv7-r
4604         elif check_arm_arch 7M  7_M;  then echo armv7-m
4605         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4606         elif check_arm_arch 8A  8_A;  then echo armv8-a
4607         fi
4608     }
4609
4610     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4611
4612     case $cpu in
4613         armv*)
4614             cpuflags="-march=$cpu"
4615             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4616         ;;
4617         *)
4618             cpuflags="-mcpu=$cpu"
4619             case $cpu in
4620                 cortex-a*)                               subarch=armv7a  ;;
4621                 cortex-r*)                               subarch=armv7r  ;;
4622                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4623                 arm11*)                                  subarch=armv6   ;;
4624                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4625                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4626                 *)                             subarch=$(probe_arm_arch) ;;
4627             esac
4628         ;;
4629     esac
4630
4631     case "$subarch" in
4632         armv5t*)    enable fast_clz                ;;
4633         armv[6-8]*)
4634             enable fast_clz
4635             disabled fast_unaligned || enable fast_unaligned
4636             ;;
4637     esac
4638
4639 elif enabled avr32; then
4640
4641     case $cpu in
4642         ap7[02]0[0-2])
4643             subarch="avr32_ap"
4644             cpuflags="-mpart=$cpu"
4645         ;;
4646         ap)
4647             subarch="avr32_ap"
4648             cpuflags="-march=$cpu"
4649         ;;
4650         uc3[ab]*)
4651             subarch="avr32_uc"
4652             cpuflags="-mcpu=$cpu"
4653         ;;
4654         uc)
4655             subarch="avr32_uc"
4656             cpuflags="-march=$cpu"
4657         ;;
4658     esac
4659
4660 elif enabled bfin; then
4661
4662     cpuflags="-mcpu=$cpu"
4663
4664 elif enabled mips; then
4665
4666     cpuflags="-march=$cpu"
4667
4668     if [ "$cpu" != "generic" ]; then
4669         disable mips32r2
4670         disable mips32r5
4671         disable mips64r2
4672         disable mips32r6
4673         disable mips64r6
4674         disable loongson2
4675         disable loongson3
4676
4677         case $cpu in
4678             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4679                 enable mips32r2
4680                 disable msa
4681             ;;
4682             p5600|i6400|p6600)
4683                 disable mipsdsp
4684                 disable mipsdspr2
4685             ;;
4686             loongson*)
4687                 enable loongson2
4688                 enable loongson3
4689                 enable local_aligned
4690                 enable simd_align_16
4691                 enable fast_64bit
4692                 enable fast_clz
4693                 enable fast_cmov
4694                 enable fast_unaligned
4695                 disable aligned_stack
4696                 disable mipsfpu
4697                 disable mipsdsp
4698                 disable mipsdspr2
4699                 case $cpu in
4700                     loongson3*)
4701                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4702                     ;;
4703                     loongson2e)
4704                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4705                     ;;
4706                     loongson2f)
4707                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4708                     ;;
4709                 esac
4710             ;;
4711             *)
4712                 # Unknown CPU. Disable everything.
4713                 warn "unknown CPU. Disabling all MIPS optimizations."
4714                 disable mipsfpu
4715                 disable mipsdsp
4716                 disable mipsdspr2
4717                 disable msa
4718                 disable mmi
4719             ;;
4720         esac
4721
4722         case $cpu in
4723             24kc)
4724                 disable mipsfpu
4725                 disable mipsdsp
4726                 disable mipsdspr2
4727             ;;
4728             24kf*)
4729                 disable mipsdsp
4730                 disable mipsdspr2
4731             ;;
4732             24kec|34kc|1004kc)
4733                 disable mipsfpu
4734                 disable mipsdspr2
4735             ;;
4736             24kef*|34kf*|1004kf*)
4737                 disable mipsdspr2
4738             ;;
4739             74kc)
4740                 disable mipsfpu
4741             ;;
4742             p5600)
4743                 enable mips32r5
4744                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4745             ;;
4746             i6400)
4747                 enable mips64r6
4748                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4749             ;;
4750             p6600)
4751                 enable mips64r6
4752                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4753             ;;
4754         esac
4755     else
4756         # We do not disable anything. Is up to the user to disable the unwanted features.
4757         warn 'generic cpu selected'
4758     fi
4759
4760 elif enabled ppc; then
4761
4762     disable ldbrx
4763
4764     case $(tolower $cpu) in
4765         601|ppc601|powerpc601)
4766             cpuflags="-mcpu=601"
4767             disable altivec
4768         ;;
4769         603*|ppc603*|powerpc603*)
4770             cpuflags="-mcpu=603"
4771             disable altivec
4772         ;;
4773         604*|ppc604*|powerpc604*)
4774             cpuflags="-mcpu=604"
4775             disable altivec
4776         ;;
4777         g3|75*|ppc75*|powerpc75*)
4778             cpuflags="-mcpu=750"
4779             disable altivec
4780         ;;
4781         g4|745*|ppc745*|powerpc745*)
4782             cpuflags="-mcpu=7450"
4783             disable vsx
4784         ;;
4785         74*|ppc74*|powerpc74*)
4786             cpuflags="-mcpu=7400"
4787             disable vsx
4788         ;;
4789         g5|970|ppc970|powerpc970)
4790             cpuflags="-mcpu=970"
4791             disable vsx
4792         ;;
4793         power[3-6]*)
4794             cpuflags="-mcpu=$cpu"
4795             disable vsx
4796         ;;
4797         power[7-8]*)
4798             cpuflags="-mcpu=$cpu"
4799         ;;
4800         cell)
4801             cpuflags="-mcpu=cell"
4802             enable ldbrx
4803             disable vsx
4804         ;;
4805         e500mc)
4806             cpuflags="-mcpu=e500mc"
4807             disable altivec
4808         ;;
4809         e500v2)
4810             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4811             disable altivec
4812             disable dcbzl
4813         ;;
4814         e500)
4815             cpuflags="-mcpu=8540 -mhard-float"
4816             disable altivec
4817             disable dcbzl
4818         ;;
4819     esac
4820
4821 elif enabled sparc; then
4822
4823     case $cpu in
4824         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4825             cpuflags="-mcpu=$cpu"
4826         ;;
4827         ultrasparc*|niagara[234])
4828             cpuflags="-mcpu=$cpu"
4829         ;;
4830     esac
4831
4832 elif enabled x86; then
4833
4834     case $cpu in
4835         i[345]86|pentium)
4836             cpuflags="-march=$cpu"
4837             disable i686
4838             disable mmx
4839         ;;
4840         # targets that do NOT support nopl and conditional mov (cmov)
4841         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4842             cpuflags="-march=$cpu"
4843             disable i686
4844         ;;
4845         # targets that do support nopl and conditional mov (cmov)
4846         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4847         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4848         |amdfam10|barcelona|b[dt]ver*|znver*)
4849             cpuflags="-march=$cpu"
4850             enable i686
4851             enable fast_cmov
4852         ;;
4853         # targets that do support conditional mov but on which it's slow
4854         pentium4|pentium4m|prescott|nocona)
4855             cpuflags="-march=$cpu"
4856             enable i686
4857             disable fast_cmov
4858         ;;
4859     esac
4860
4861 fi
4862
4863 if [ "$cpu" != generic ]; then
4864     add_cflags  $cpuflags
4865     add_asflags $cpuflags
4866     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4867 fi
4868
4869 # compiler sanity check
4870 test_exec <<EOF
4871 int main(void){ return 0; }
4872 EOF
4873 if test "$?" != 0; then
4874     echo "$cc is unable to create an executable file."
4875     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4876         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4877         echo "Only do this if you know what cross compiling means."
4878     fi
4879     die "C compiler test failed."
4880 fi
4881
4882 add_cppflags -D_ISOC99_SOURCE
4883 add_cxxflags -D__STDC_CONSTANT_MACROS
4884 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4885
4886 # some compilers silently accept -std=c11, so we also need to check that the
4887 # version macro is defined properly
4888 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
4889     add_cflags -std=c11 ||
4890     check_cflags -std=c99
4891
4892 check_cppflags -D_FILE_OFFSET_BITS=64
4893 check_cppflags -D_LARGEFILE_SOURCE
4894
4895 add_host_cppflags -D_ISOC99_SOURCE
4896 check_host_cflags -std=c99
4897 check_host_cflags -Wall
4898 check_host_cflags $host_cflags_speed
4899
4900 check_64bit(){
4901     arch32=$1
4902     arch64=$2
4903     expr=${3:-'sizeof(void *) > 4'}
4904     test_code cc "" "int test[2*($expr) - 1]" &&
4905         subarch=$arch64 || subarch=$arch32
4906     enable $subarch
4907 }
4908
4909 case "$arch" in
4910     aarch64|alpha|ia64)
4911         enabled shared && enable_weak pic
4912     ;;
4913     mips)
4914         check_64bit mips mips64 '_MIPS_SIM > 1'
4915         enabled shared && enable_weak pic
4916     ;;
4917     parisc)
4918         check_64bit parisc parisc64
4919         enabled shared && enable_weak pic
4920     ;;
4921     ppc)
4922         check_64bit ppc ppc64
4923         enabled shared && enable_weak pic
4924     ;;
4925     s390)
4926         check_64bit s390 s390x
4927         enabled shared && enable_weak pic
4928     ;;
4929     sparc)
4930         check_64bit sparc sparc64
4931         enabled shared && enable_weak pic
4932     ;;
4933     x86)
4934         check_64bit x86_32 x86_64
4935         # Treat x32 as x64 for now. Note it also needs pic if shared
4936         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
4937             subarch=x86_64 && enable x86_64 && disable x86_32
4938         if enabled x86_64; then
4939             enabled shared && enable_weak pic
4940             objformat=elf64
4941         fi
4942     ;;
4943 esac
4944
4945 # OS specific
4946 case $target_os in
4947     aix)
4948         SHFLAGS=-shared
4949         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4950         enabled shared && add_ldflags -Wl,-brtl
4951         arflags='-Xany -r -c'
4952         ;;
4953     android)
4954         disable symver
4955         enable section_data_rel_ro
4956         SLIB_INSTALL_NAME='$(SLIBNAME)'
4957         SLIB_INSTALL_LINKS=
4958         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4959         ;;
4960     haiku)
4961         prefix_default="/boot/common"
4962         network_extralibs="-lnetwork"
4963         host_extralibs=
4964         ;;
4965     sunos)
4966         SHFLAGS='-shared -Wl,-h,$$(@F)'
4967         enabled x86 && append SHFLAGS -mimpure-text
4968         network_extralibs="-lsocket -lnsl"
4969         add_cppflags -D__EXTENSIONS__
4970         # When using suncc to build, the Solaris linker will mark
4971         # an executable with each instruction set encountered by
4972         # the Solaris assembler.  As our libraries contain their own
4973         # guards for processor-specific code, instead suppress
4974         # generation of the HWCAPS ELF section on Solaris x86 only.
4975         enabled_all suncc x86 &&
4976             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4977             add_ldflags -Wl,-M,mapfile
4978         nm_default='nm -P -g'
4979         version_script='-M'
4980         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4981         ;;
4982     netbsd)
4983         disable symver
4984         oss_indev_extralibs="-lossaudio"
4985         oss_outdev_extralibs="-lossaudio"
4986         enabled gcc || check_ldflags -Wl,-zmuldefs
4987         ;;
4988     openbsd|bitrig)
4989         disable symver
4990         SHFLAGS='-shared'
4991         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4992         SLIB_INSTALL_LINKS=
4993         oss_indev_extralibs="-lossaudio"
4994         oss_outdev_extralibs="-lossaudio"
4995         ;;
4996     dragonfly)
4997         disable symver
4998         ;;
4999     freebsd)
5000         ;;
5001     bsd/os)
5002         add_extralibs -lpoll -lgnugetopt
5003         strip="strip -d"
5004         ;;
5005     darwin)
5006         enabled ppc && add_asflags -force_cpusubtype_ALL
5007         install_name_dir_default='$(SHLIBDIR)'
5008         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5009         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5010         strip="${strip} -x"
5011         add_ldflags -Wl,-dynamic,-search_paths_first
5012         check_cflags -Werror=partial-availability
5013         SLIBSUF=".dylib"
5014         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5015         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5016         enabled x86_64 && objformat="macho64" || objformat="macho32"
5017         enabled_any pic shared x86_64 ||
5018             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5019         check_header dispatch/dispatch.h &&
5020             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5021         if test -n "$sysroot"; then
5022             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5023             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5024         fi
5025         version_script='-exported_symbols_list'
5026         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5027         ;;
5028     msys*)
5029         die "Native MSYS builds are discouraged, please use the MINGW environment."
5030         ;;
5031     mingw32*|mingw64*)
5032         target_os=mingw32
5033         LIBTARGET=i386
5034         if enabled x86_64; then
5035             LIBTARGET="i386:x86-64"
5036         elif enabled arm; then
5037             LIBTARGET="arm"
5038         elif enabled aarch64; then
5039             LIBTARGET="arm64"
5040         fi
5041         if enabled shared; then
5042             # Cannot build both shared and static libs when using dllimport.
5043             disable static
5044         fi
5045         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5046         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5047         shlibdir_default="$bindir_default"
5048         SLIBPREF=""
5049         SLIBSUF=".dll"
5050         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5051         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5052         if test_cmd lib.exe -list; then
5053             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5054             if enabled x86_64; then
5055                 LIBTARGET=x64
5056             fi
5057         else
5058             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5059         fi
5060         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5061         SLIB_INSTALL_LINKS=
5062         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5063         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5064         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5065         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5066         enabled x86_64 && objformat="win64" || objformat="win32"
5067         dlltool="${cross_prefix}dlltool"
5068         ranlib=:
5069         enable dos_paths
5070         check_ldflags -Wl,--nxcompat,--dynamicbase
5071         # Lets work around some stupidity in binutils.
5072         # ld will strip relocations from executables even though we need them
5073         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5074         # however ld then forgets what the entry point should be (oops) so we
5075         # have to manually (re)set it.
5076         if enabled x86_32; then
5077             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5078         elif enabled x86_64; then
5079             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5080             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5081             # Set image base >4GB for extra entropy with HEASLR
5082             add_ldexeflags -Wl,--image-base,0x140000000
5083             append SHFLAGS -Wl,--image-base,0x180000000
5084         fi
5085         ;;
5086     win32|win64)
5087         disable symver
5088         if enabled shared; then
5089             # Link to the import library instead of the normal static library
5090             # for shared libs.
5091             LD_LIB='%.lib'
5092             # Cannot build both shared and static libs with MSVC or icl.
5093             disable static
5094         fi
5095         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5096         shlibdir_default="$bindir_default"
5097         SLIBPREF=""
5098         SLIBSUF=".dll"
5099         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5100         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5101         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5102         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5103         SLIB_INSTALL_LINKS=
5104         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5105         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5106         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5107         enabled x86_64 && objformat="win64" || objformat="win32"
5108         ranlib=:
5109         enable dos_paths
5110         ;;
5111     cygwin*)
5112         target_os=cygwin
5113         shlibdir_default="$bindir_default"
5114         SLIBPREF="cyg"
5115         SLIBSUF=".dll"
5116         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5117         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5118         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5119         SLIB_INSTALL_LINKS=
5120         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5121         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5122         enabled x86_64 && objformat="win64" || objformat="win32"
5123         enable dos_paths
5124         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5125         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5126         ;;
5127     *-dos|freedos|opendos)
5128         network_extralibs="-lsocket"
5129         objformat="coff"
5130         enable dos_paths
5131         add_cppflags -U__STRICT_ANSI__
5132         ;;
5133     linux)
5134         enable section_data_rel_ro
5135         enabled_any arm aarch64 && enable_weak linux_perf
5136         ;;
5137     irix*)
5138         target_os=irix
5139         ranlib="echo ignoring ranlib"
5140         ;;
5141     os/2*)
5142         strip="lxlite -CS"
5143         striptype=""
5144         objformat="aout"
5145         add_cppflags -D_GNU_SOURCE
5146         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5147         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5148         LIBSUF="_s.a"
5149         SLIBPREF=""
5150         SLIBSUF=".dll"
5151         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5152         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5153         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5154             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5155             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5156             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5157             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5158         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5159             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5160         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5161         SLIB_INSTALL_LINKS=
5162         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5163         enable dos_paths
5164         enable_weak os2threads
5165         ;;
5166     gnu/kfreebsd)
5167         add_cppflags -D_BSD_SOURCE
5168         ;;
5169     gnu)
5170         ;;
5171     qnx)
5172         add_cppflags -D_QNX_SOURCE
5173         network_extralibs="-lsocket"
5174         ;;
5175     symbian)
5176         SLIBSUF=".dll"
5177         enable dos_paths
5178         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5179         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5180         add_ldflags -Wl,--target1-abs,--no-undefined \
5181                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5182                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5183         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5184                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5185                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5186         ;;
5187     minix)
5188         ;;
5189     none)
5190         ;;
5191     *)
5192         die "Unknown OS '$target_os'."
5193         ;;
5194 esac
5195
5196 # test if creating links works
5197 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5198 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5199 mkdir "$link_dest"
5200 $ln_s "$link_dest" "$link_name"
5201 touch "$link_dest/test_file"
5202 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5203     # create link to source path
5204     [ -e src ] && rm src
5205     $ln_s "$source_path" src
5206     source_link=src
5207 else
5208     # creating directory links doesn't work
5209     # fall back to using the full source path
5210     source_link="$source_path"
5211 fi
5212 # cleanup
5213 rm -r "$link_dest"
5214 rm -r "$link_name"
5215
5216 # determine libc flavour
5217
5218 probe_libc(){
5219     pfx=$1
5220     pfx_no_=${pfx%_}
5221     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5222     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5223         eval ${pfx}libc_type=uclibc
5224         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5225     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5226         eval ${pfx}libc_type=glibc
5227         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5228     # MinGW headers can be installed on Cygwin, so check for newlib first.
5229     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5230         eval ${pfx}libc_type=newlib
5231         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5232     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5233     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5234         eval ${pfx}libc_type=mingw64
5235         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5236             add_compat msvcrt/snprintf.o
5237             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5238         fi
5239         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5240         eval test \$${pfx_no_}cc_type = "gcc" &&
5241             add_${pfx}cppflags -D__printf__=__gnu_printf__
5242         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5243             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5244     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5245          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5246         eval ${pfx}libc_type=mingw32
5247         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5248             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5249             die "ERROR: MinGW32 runtime version must be >= 3.15."
5250         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5251         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5252             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5253         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5254             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5255         eval test \$${pfx_no_}cc_type = "gcc" &&
5256             add_${pfx}cppflags -D__printf__=__gnu_printf__
5257     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5258         eval ${pfx}libc_type=msvcrt
5259         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5260             if [ "$pfx" = host_ ]; then
5261                 add_host_cppflags -Dsnprintf=_snprintf
5262             else
5263                 add_compat strtod.o strtod=avpriv_strtod
5264                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5265                                              _snprintf=avpriv_snprintf  \
5266                                              vsnprintf=avpriv_vsnprintf
5267             fi
5268         fi
5269         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5270         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5271         # 0x601 by default unless something else is set by the user.
5272         # This can easily lead to us detecting functions only present
5273         # in such new versions and producing binaries requiring windows 7.0.
5274         # Therefore explicitly set the default to Vista unless the user has
5275         # set something else on the command line.
5276         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5277         # family. For these cases, configure is free to use any functions
5278         # found in the SDK headers by default. (Alternatively, we could force
5279         # _WIN32_WINNT to 0x0602 in that case.)
5280         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5281             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5282 #ifdef WINAPI_FAMILY
5283 #include <winapifamily.h>
5284 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5285 #error not desktop
5286 #endif
5287 #endif
5288 EOF
5289         if [ "$pfx" = "" ]; then
5290             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5291             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5292         fi
5293     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5294         eval ${pfx}libc_type=klibc
5295     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5296         eval ${pfx}libc_type=bionic
5297     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5298         eval ${pfx}libc_type=solaris
5299         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5300     fi
5301     test_${pfx}cc <<EOF
5302 #include <time.h>
5303 void *v = localtime_r;
5304 EOF
5305 test "$?" != 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
5306 #include <time.h>
5307 void *v = localtime_r;
5308 EOF
5309
5310     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5311 }
5312
5313 probe_libc
5314 probe_libc host_
5315
5316 # hacks for compiler/libc/os combinations
5317
5318 case $libc_type in
5319     bionic)
5320         add_compat strtod.o strtod=avpriv_strtod
5321         ;;
5322 esac
5323
5324 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5325     add_cppflags '-I\$(SRC_PATH)/compat/float'
5326
5327 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5328
5329 set_default libdir
5330 : ${shlibdir_default:="$libdir"}
5331 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5332
5333 set_default $PATHS_LIST
5334 set_default nm
5335
5336 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5337
5338 enable_weak_pic() {
5339     disabled pic && return
5340     enable pic
5341     add_cppflags -DPIC
5342     case "$target_os" in
5343     mingw*|cygwin*|win*)
5344         ;;
5345     *)
5346         add_cflags -fPIC
5347         add_asflags -fPIC
5348         ;;
5349     esac
5350 }
5351
5352 enabled pic && enable_weak_pic
5353
5354 test_cc <<EOF || die "Symbol mangling check failed."
5355 int ff_extern;
5356 EOF
5357 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5358 extern_prefix=${sym%%ff_extern*}
5359
5360 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5361
5362 for restrict_keyword in restrict __restrict__ __restrict ""; do
5363     test_cc <<EOF && break
5364 void foo(char * $restrict_keyword p);
5365 EOF
5366 done
5367
5368 test_cc <<EOF && enable pragma_deprecated
5369 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5370 EOF
5371
5372 test_cc <<EOF || die "endian test failed"
5373 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5374 EOF
5375 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5376
5377 test_cc <<EOF && enable const_nan
5378 #include <math.h>
5379 void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }
5380 EOF
5381
5382 if ! enabled ppc64 || enabled bigendian; then
5383     disable vsx
5384 fi
5385
5386 check_gas() {
5387     log "check_gas using '$as' as AS"
5388     # :vararg is used on aarch64, arm and ppc altivec
5389     test_as <<EOF || return 1
5390 .macro m n, y:vararg=0
5391 \n: .int \y
5392 .endm
5393 m x
5394 EOF
5395     # .altmacro is only used in arm asm
5396     ! enabled arm || test_as <<EOF || return 1
5397 .altmacro
5398 EOF
5399     enable gnu_as
5400     return 0
5401 }
5402
5403 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5404     nogas=:
5405     enabled_any arm aarch64 && nogas=die
5406     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5407     as_noop=-v
5408
5409     case $as_type in
5410         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5411         gcc)  gaspp_as_type=gas ;;
5412         *)    gaspp_as_type=$as_type ;;
5413     esac
5414
5415     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5416
5417     test "${as#*gas-preprocessor.pl}" != "$as" ||
5418     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5419         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5420
5421     if ! check_gas ; then
5422         as=${gas:=$as}
5423         check_gas || \
5424             $nogas "GNU assembler not found, install/update gas-preprocessor"
5425     fi
5426
5427     test_as <<EOF && enable as_func
5428 .func test
5429 .endfunc
5430 EOF
5431 fi
5432
5433 check_inline_asm inline_asm_labels '"1:\n"'
5434
5435 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5436
5437 if enabled aarch64; then
5438     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5439     # internal assembler in clang 3.3 does not support this instruction
5440     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5441     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5442
5443     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5444
5445 elif enabled alpha; then
5446
5447     check_cflags -mieee
5448
5449 elif enabled arm; then
5450
5451     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5452     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5453 float func(float a, float b){ return a+b; }
5454 EOF
5455     enabled thumb && check_cflags -mthumb || check_cflags -marm
5456
5457     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5458         :
5459     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5460         :
5461     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5462         case "${cross_prefix:-$cc}" in
5463             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5464             *) test_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5465 __asm__ (".eabi_attribute 28, 1");
5466 int main(void) { return 0; }
5467 EOF
5468         esac
5469         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5470     fi
5471
5472     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5473     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5474     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5475     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5476     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5477     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5478     enabled setend  && check_insn setend  'setend be'
5479
5480     [ $target_os = linux ] || [ $target_os = android ] ||
5481         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5482             $ARCH_EXT_LIST_ARM
5483
5484     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5485
5486     test_as <<EOF && enable as_arch_directive
5487 .arch armv7-a
5488 EOF
5489     test_as <<EOF && enable as_fpu_directive
5490 .fpu neon
5491 EOF
5492
5493     # llvm's integrated assembler supports .object_arch from llvm 3.5
5494     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5495         test_as <<EOF && enable as_object_arch
5496 .object_arch armv4
5497 EOF
5498
5499     # MS armasm fails to assemble our PIC constructs
5500     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5501
5502 elif enabled mips; then
5503
5504     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5505     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5506     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5507
5508     # Enable minimum ISA based on selected options
5509     if enabled mips64; then
5510         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5511         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5512         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5513     else
5514         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5515         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5516         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5517         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5518     fi
5519
5520     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5521     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5522     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5523     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5524     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5525
5526     if enabled bigendian && enabled msa; then
5527         disable msa
5528     fi
5529
5530 elif enabled parisc; then
5531
5532     if enabled gcc; then
5533         case $($cc -dumpversion) in
5534             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5535         esac
5536     fi
5537
5538 elif enabled ppc; then
5539
5540     enable local_aligned
5541
5542     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5543     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5544     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5545     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5546
5547     if enabled altivec; then
5548         check_cflags -maltivec -mabi=altivec
5549
5550         # check if our compiler supports Motorola AltiVec C API
5551         test_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
5552                                  vector signed int v2 = (vector signed int) { 1 };
5553                                  v1 = vec_add(v1, v2);" ||
5554             disable altivec
5555
5556         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5557     fi
5558
5559     if enabled vsx; then
5560         check_cflags -mvsx &&
5561         test_code cc altivec.h "int v[4] = { 0 };
5562                                  vector signed int v1 = vec_vsx_ld(0, v);" ||
5563             disable vsx
5564     fi
5565
5566     if enabled power8; then
5567         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5568     fi
5569
5570 elif enabled x86; then
5571
5572     check_builtin rdtsc    intrin.h   "__rdtsc()"
5573     check_builtin mm_empty mmintrin.h "_mm_empty()"
5574
5575     enable local_aligned
5576
5577     # check whether EBP is available on x86
5578     # As 'i' is stored on the stack, this program will crash
5579     # if the base pointer is used to access it because the
5580     # base pointer is cleared in the inline assembly code.
5581     check_exec_crash <<EOF && enable ebp_available
5582 volatile int i=0;
5583 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5584 return i;
5585 EOF
5586
5587     # check whether EBX is available on x86
5588     check_inline_asm ebx_available '""::"b"(0)' &&
5589         check_inline_asm ebx_available '"":::"%ebx"'
5590
5591     # check whether xmm clobbers are supported
5592     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5593
5594     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5595         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5596
5597     # check whether binutils is new enough to compile SSSE3/MMXEXT
5598     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5599     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5600
5601     probe_x86asm(){
5602         x86asmexe_probe=$1
5603         if test_cmd $x86asmexe_probe -v; then
5604             x86asmexe=$x86asmexe_probe
5605             x86asm_type=nasm
5606             x86asm_debug="-g -F dwarf"
5607             X86ASMDEP=
5608             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5609         elif test_cmd $x86asmexe_probe --version; then
5610             x86asmexe=$x86asmexe_probe
5611             x86asm_type=yasm
5612             x86asm_debug="-g dwarf2"
5613             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5614             X86ASM_DEPFLAGS=
5615         fi
5616         test_x86asm "movbe ecx, [5]" && enable x86asm
5617     }
5618
5619     if ! disabled_any asm mmx x86asm; then
5620         disable x86asm
5621         for program in $x86asmexe nasm yasm; do
5622             probe_x86asm $program && break
5623         done
5624         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5625         X86ASMFLAGS="-f $objformat"
5626         enabled pic               && append X86ASMFLAGS "-DPIC"
5627         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5628         case "$objformat" in
5629             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5630         esac
5631
5632         test_x86asm "vmovdqa32 [eax]{k1}{z}, zmm0"    || disable avx512_external
5633         test_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5634         test_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5635         test_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5636         test_x86asm "CPU amdnop" || disable cpunop
5637     fi
5638
5639     case "$cpu" in
5640         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5641             disable fast_clz
5642         ;;
5643     esac
5644
5645 fi
5646
5647 test_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5648
5649 check_ldflags -Wl,--as-needed
5650 check_ldflags -Wl,-z,noexecstack
5651
5652 if ! disabled network; then
5653     check_func getaddrinfo $network_extralibs
5654     check_func inet_aton $network_extralibs
5655
5656     check_type netdb.h "struct addrinfo"
5657     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5658     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5659     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5660     check_type poll.h "struct pollfd"
5661     check_type netinet/sctp.h "struct sctp_event_subscribe"
5662     check_struct "sys/socket.h" "struct msghdr" msg_flags
5663     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5664     check_type netinet/in.h "struct sockaddr_in6"
5665     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5666     check_type "sys/types.h sys/socket.h" socklen_t
5667
5668     # Prefer arpa/inet.h over winsock2
5669     if check_header arpa/inet.h ; then
5670         check_func closesocket
5671     elif check_header winsock2.h ; then
5672         check_func_headers winsock2.h closesocket -lws2 &&
5673             network_extralibs="-lws2" ||
5674         { check_func_headers winsock2.h closesocket -lws2_32 &&
5675             network_extralibs="-lws2_32"; } || disable winsock2_h network
5676         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5677
5678         check_type ws2tcpip.h socklen_t
5679         check_type ws2tcpip.h "struct addrinfo"
5680         check_type ws2tcpip.h "struct group_source_req"
5681         check_type ws2tcpip.h "struct ip_mreq_source"
5682         check_type ws2tcpip.h "struct ipv6_mreq"
5683         check_type winsock2.h "struct pollfd"
5684         check_struct winsock2.h "struct sockaddr" sa_len
5685         check_type ws2tcpip.h "struct sockaddr_in6"
5686         check_type ws2tcpip.h "struct sockaddr_storage"
5687     else
5688         disable network
5689     fi
5690 fi
5691
5692 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5693 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5694 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5695 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5696 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5697 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5698 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5699
5700 case "$custom_allocator" in
5701     jemalloc)
5702         # jemalloc by default does not use a prefix
5703         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5704     ;;
5705     tcmalloc)
5706         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5707         malloc_prefix=tc_
5708     ;;
5709 esac
5710
5711 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5712 check_func  ${malloc_prefix}memalign            && enable memalign
5713 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5714
5715 check_func  access
5716 check_func_headers stdlib.h arc4random
5717 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5718 check_func  fcntl
5719 check_func  fork
5720 check_func  gethrtime
5721 check_func  getopt
5722 check_func  getrusage
5723 check_func  gettimeofday
5724 check_func  isatty
5725 check_func  mkstemp
5726 check_func  mmap
5727 check_func  mprotect
5728 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5729 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
5730 check_func  sched_getaffinity
5731 check_func  setrlimit
5732 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5733 check_func  strerror_r
5734 check_func  sysconf
5735 check_func  sysctl
5736 check_func  usleep
5737
5738 check_func_headers conio.h kbhit
5739 check_func_headers io.h setmode
5740 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5741 check_func_headers mach/mach_time.h mach_absolute_time
5742 check_func_headers stdlib.h getenv
5743 check_func_headers sys/stat.h lstat
5744
5745 check_func_headers windows.h GetProcessAffinityMask
5746 check_func_headers windows.h GetProcessTimes
5747 check_func_headers windows.h GetSystemTimeAsFileTime
5748 check_func_headers windows.h LoadLibrary
5749 check_func_headers windows.h MapViewOfFile
5750 check_func_headers windows.h PeekNamedPipe
5751 check_func_headers windows.h SetConsoleTextAttribute
5752 check_func_headers windows.h SetConsoleCtrlHandler
5753 check_func_headers windows.h Sleep
5754 check_func_headers windows.h VirtualAlloc
5755 check_func_headers glob.h glob
5756 enabled xlib &&
5757     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5758
5759 check_header direct.h
5760 check_header dirent.h
5761 check_header dxgidebug.h
5762 check_header dxva.h
5763 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5764 check_header io.h
5765 check_header libcrystalhd/libcrystalhd_if.h
5766 check_header malloc.h
5767 check_header net/udplite.h
5768 check_header poll.h
5769 check_header sys/param.h
5770 check_header sys/resource.h
5771 check_header sys/select.h
5772 check_header sys/time.h
5773 check_header sys/un.h
5774 check_header termios.h
5775 check_header unistd.h
5776 check_header valgrind/valgrind.h
5777 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5778 check_header windows.h
5779 check_header X11/extensions/XvMClib.h
5780 check_header asm/types.h
5781
5782 # it seems there are versions of clang in some distros that try to use the
5783 # gcc headers, which explodes for stdatomic
5784 # so we also check that atomics actually work here
5785 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"
5786
5787 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
5788 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
5789 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
5790 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
5791 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
5792
5793 check_lib android android/native_window.h ANativeWindow_acquire -landroid
5794 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
5795 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
5796
5797 enabled appkit       && check_apple_framework AppKit
5798 enabled audiotoolbox && check_apple_framework AudioToolbox
5799 enabled avfoundation && check_apple_framework AVFoundation
5800 enabled coreimage    && check_apple_framework CoreImage
5801 enabled videotoolbox && check_apple_framework VideoToolbox
5802
5803 check_apple_framework CoreFoundation
5804 check_apple_framework CoreMedia
5805 check_apple_framework CoreVideo
5806
5807 enabled avfoundation && {
5808     disable coregraphics applicationservices
5809     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
5810     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
5811
5812 enabled videotoolbox && {
5813     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
5814     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
5815 }
5816
5817 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5818
5819 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5820 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5821 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5822 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5823 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5824
5825 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
5826 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
5827 check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
5828 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5829 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5830 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5831 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5832 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
5833 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
5834 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
5835
5836 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5837
5838 if ! disabled ffnvcodec; then
5839     check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.1" \
5840         "ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h" ""
5841 fi
5842
5843 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
5844
5845 if ! disabled w32threads && ! enabled pthreads; then
5846     check_func_headers "windows.h process.h" _beginthreadex &&
5847         check_type "windows.h" CONDITION_VARIABLE &&
5848         enable w32threads || disable w32threads
5849     if ! enabled w32threads && enabled winrt; then
5850         check_func_headers "windows.h" CreateThread &&
5851             enable w32threads || disable w32threads
5852     fi
5853 fi
5854
5855 # check for some common methods of building with pthread support
5856 # do this before the optional library checks as some of them require pthreads
5857 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5858     if check_lib pthreads pthread.h pthread_join   -pthread &&
5859        check_lib pthreads pthread.h pthread_create -pthread; then
5860         add_cflags -pthread
5861     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
5862          check_lib pthreads pthread.h pthread_create -pthreads; then
5863         add_cflags -pthreads
5864     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
5865          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
5866         add_cflags -ldl -pthread
5867     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
5868          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
5869         :
5870     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
5871          check_lib pthreads pthread.h pthread_create -lpthread; then
5872         :
5873     elif check_func pthread_join && check_func pthread_create; then
5874         enable pthreads
5875     fi
5876     test_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5877
5878     if enabled pthreads; then
5879         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
5880         check_func pthread_cancel $pthreads_extralibs
5881     fi
5882 fi
5883
5884 enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz
5885 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
5886 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
5887
5888 # On some systems dynamic loading requires no extra linker flags
5889 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
5890
5891 check_lib libm math.h sin -lm
5892
5893 atan2f_args=2
5894 copysign_args=2
5895 hypot_args=2
5896 ldexpf_args=2
5897 powf_args=2
5898
5899 for func in $MATH_FUNCS; do
5900     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
5901 done
5902
5903 for func in $COMPLEX_FUNCS; do
5904     eval check_complexfunc $func \${${func}_args:-1}
5905 done
5906
5907 # these are off by default, so fail if requested and not available
5908 enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda
5909 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5910 enabled decklink          && { require_header DeckLinkAPI.h &&
5911                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }
5912 enabled libndi_newtek     && require_header Processing.NDI.Lib.h
5913 enabled frei0r            && require_header frei0r.h
5914 enabled gmp               && require gmp gmp.h mpz_export -lgmp
5915 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
5916 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }
5917 enabled ladspa            && require_header ladspa.h
5918 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv-0/lilv/lilv.h" lilv_world_new
5919 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5920 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
5921 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
5922 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
5923 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5924                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
5925                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5926 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
5927 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
5928 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
5929 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
5930 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5931                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5932                                  warn "using libfdk without pkg-config"; } }
5933 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"
5934 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
5935 enabled fontconfig        && enable libfontconfig
5936 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
5937 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
5938 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
5939 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
5940                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
5941 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5942                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
5943                                done || die "ERROR: libgsm not found"; }
5944 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
5945 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5946 # While it may appear that require is being used as a pkg-config
5947 # fallback for libmfx, it is actually being used to detect a different
5948 # installation route altogether.  If libmfx is installed via the Intel
5949 # Media SDK or Intel Media Server Studio, these don't come with
5950 # pkg-config support.  Instead, users should make sure that the build
5951 # can find the libraries and headers through other means.
5952 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
5953                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
5954 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
5955 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
5956 enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs
5957 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||
5958                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||
5959                                die "ERROR: libnpp not found"; }
5960 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5961 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5962 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5963                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
5964                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5965                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
5966 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
5967 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
5968                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
5969 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
5970 enabled libopus           && {
5971     enabled libopus_decoder && {
5972         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
5973     }
5974     enabled libopus_encoder && {
5975         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
5976     }
5977 }
5978 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
5979 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
5980 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
5981 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
5982 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
5983 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
5984                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
5985 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
5986 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
5987 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
5988 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
5989 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
5990 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5991 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
5992 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5993                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5994                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5995 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
5996 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5997 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 0.6.2" libvmaf.h compute_vmaf
5998 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5999 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6000                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6001
6002 enabled libvpx            && {
6003     enabled libvpx_vp8_decoder && {
6004         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6005             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||
6006                 die "ERROR: libvpx decoder version must be >=1.4.0";
6007     }
6008     enabled libvpx_vp8_encoder && {
6009         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6010             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||
6011                 die "ERROR: libvpx encoder version must be >=1.4.0";
6012     }
6013     enabled libvpx_vp9_decoder && {
6014         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6015             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"
6016     }
6017     enabled libvpx_vp9_encoder && {
6018         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6019             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"
6020     }
6021     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6022         die "libvpx enabled but no supported decoders found"
6023     fi
6024 }
6025
6026 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6027 enabled libwebp           && {
6028     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6029     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6030 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6031                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6032                                  warn "using libx264 without pkg-config"; } } &&
6033                              require_cpp_condition x264.h "X264_BUILD >= 118" &&
6034                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6035 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6036                              require_cpp_condition x265.h "X265_BUILD >= 68"
6037 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6038 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6039 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6040 enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
6041 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6042                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6043                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6044 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6045 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6046 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6047                                { ! enabled cross_compile &&
6048                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6049                                  add_ldflags -L/opt/vc/lib/ &&
6050                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6051                                die "ERROR: mmal not found" &&
6052                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6053 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6054                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6055                                die "ERROR: openal not found"; } &&
6056                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6057                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6058 enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6059                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6060                                die "ERROR: opencl not found"; } &&
6061                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6062                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6063                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6064 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6065                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6066                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6067                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6068                                die "ERROR: opengl not found."
6069                              }
6070 enabled omx               && require_header OMX_Core.h
6071 enabled omx_rpi           && { check_header OMX_Core.h ||
6072                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
6073                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
6074 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6075                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6076                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6077                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6078                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6079                                die "ERROR: openssl not found"; }
6080 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6081                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6082                                { enabled libdrm ||
6083                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6084                              }
6085
6086 if enabled gcrypt; then
6087     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6088     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6089         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6090         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6091         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6092             die "ERROR: gcrypt not found"
6093         add_cflags $gcrypt_cflags
6094     else
6095         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6096     fi
6097 fi
6098
6099 if enabled sdl2; then
6100     SDL2_CONFIG="${cross_prefix}sdl2-config"
6101     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6102     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6103         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6104         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6105         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6106         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6107         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6108             enable sdl2
6109     fi
6110     if test $target_os = "mingw32"; then
6111         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6112     fi
6113 fi
6114
6115 if enabled decklink; then
6116     case $target_os in
6117         mingw32*|mingw64*|win32|win64)
6118             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6119             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6120             ;;
6121     esac
6122 fi
6123
6124 enabled securetransport &&
6125     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6126     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6127         disable securetransport
6128
6129 enabled securetransport &&
6130     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6131
6132 enabled schannel &&
6133     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6134     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6135     schannel_extralibs="-lsecur32" ||
6136         disable schannel
6137
6138 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6139 enabled makeinfo \
6140     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6141     && enable makeinfo_html || disable makeinfo_html
6142 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6143 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6144 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6145 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6146
6147 # check V4L2 codecs available in the API
6148 check_header linux/fb.h
6149 check_header linux/videodev2.h
6150 test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6151 test_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m
6152 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m
6153 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m
6154 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m
6155 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m
6156 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m
6157 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m
6158 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m
6159 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m
6160 test_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m
6161
6162 check_header sys/videoio.h
6163 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6164
6165 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6166 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6167 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6168 # w32api 3.12 had it defined wrong
6169 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6170
6171 check_type "dshow.h" IBaseFilter
6172
6173 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6174 check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6175     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6176     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6177     check_header "dev/ic/bt8xx.h"
6178
6179 if check_struct sys/soundcard.h audio_buf_info bytes; then
6180     enable_sanitized sys/soundcard.h
6181 else
6182     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6183     #include <sys/soundcard.h>
6184     audio_buf_info abc;
6185 EOF
6186 fi
6187
6188 enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6189     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
6190
6191 enabled libjack &&
6192     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6193
6194 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6195
6196 if enabled libcdio; then
6197     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6198     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6199     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6200     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6201     die "ERROR: No usable libcdio/cdparanoia found"
6202 fi
6203
6204 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6205     disable libxcb_shm libxcb_shape libxcb_xfixes
6206
6207 if enabled libxcb; then
6208     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6209     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6210     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6211 fi
6212
6213 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6214
6215 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6216 # the desktop api partition
6217 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6218 #ifdef WINAPI_FAMILY
6219 #include <winapifamily.h>
6220 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6221 #error desktop, not uwp
6222 #else
6223 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6224 #endif
6225 #else
6226 #error no family set
6227 #endif
6228 EOF
6229
6230 enabled vaapi &&
6231     check_lib vaapi va/va.h vaInitialize -lva
6232
6233 enabled vaapi &&
6234     test_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
6235     disable vaapi
6236
6237 enabled vaapi &&
6238     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
6239
6240 enabled vaapi &&
6241     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
6242
6243 enabled vaapi &&
6244     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6245
6246 if enabled_all opencl libdrm ; then
6247     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6248         enable opencl_drm_beignet
6249     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6250         enable opencl_drm_arm
6251 fi
6252
6253 if enabled_all opencl vaapi ; then
6254     enabled opencl_drm_beignet && enable opencl_vaapi_beignet
6255     if enabled libmfx ; then
6256         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6257             enable opencl_vaapi_intel_media
6258     fi
6259 fi
6260
6261 if enabled_all opencl dxva2 ; then
6262     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6263         enable opencl_dxva2
6264 fi
6265
6266 if enabled_all opencl d3d11va ; then
6267     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6268         enable opencl_d3d11
6269 fi
6270
6271 enabled vdpau &&
6272     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6273
6274 enabled vdpau &&
6275     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6276
6277 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6278
6279 if enabled x86; then
6280     case $target_os in
6281         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6282             ;;
6283         *)
6284             disable ffnvcodec cuvid nvdec nvenc
6285             ;;
6286     esac
6287 else
6288     disable ffnvcodec cuvid nvdec nvenc
6289 fi
6290
6291 enabled ffnvcodec && enable cuda
6292
6293 enabled nvenc &&
6294     test_cc -I$source_path <<EOF || disable nvenc
6295 #include <ffnvcodec/nvEncodeAPI.h>
6296 NV_ENCODE_API_FUNCTION_LIST flist;
6297 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6298 int main(void) { return 0; }
6299 EOF
6300
6301 enabled amf &&
6302     check_cpp_condition amf "AMF/core/Version.h" \
6303         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
6304
6305 # Funny iconv installations are not unusual, so check it after all flags have been set
6306 if enabled libc_iconv; then
6307     check_func_headers iconv.h iconv
6308 elif enabled iconv; then
6309     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6310 fi
6311
6312 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6313
6314 # add some useful compiler flags if supported
6315 check_cflags -Wdeclaration-after-statement
6316 check_cflags -Wall
6317 check_cflags -Wdisabled-optimization
6318 check_cflags -Wpointer-arith
6319 check_cflags -Wredundant-decls
6320 check_cflags -Wwrite-strings
6321 check_cflags -Wtype-limits
6322 check_cflags -Wundef
6323 check_cflags -Wmissing-prototypes
6324 check_cflags -Wno-pointer-to-int-cast
6325 check_cflags -Wstrict-prototypes
6326 check_cflags -Wempty-body
6327
6328 if enabled extra_warnings; then
6329     check_cflags -Wcast-qual
6330     check_cflags -Wextra
6331     check_cflags -Wpedantic
6332 fi
6333
6334 check_disable_warning(){
6335     warning_flag=-W${1#-Wno-}
6336     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6337 }
6338
6339 test_cflags -Werror=unused-command-line-argument &&
6340     append unknown_warning_flags "-Werror=unused-command-line-argument"
6341 test_cflags -Werror=unknown-warning-option &&
6342     append unknown_warning_flags "-Werror=unknown-warning-option"
6343
6344 check_disable_warning -Wno-parentheses
6345 check_disable_warning -Wno-switch
6346 check_disable_warning -Wno-format-zero-length
6347 check_disable_warning -Wno-pointer-sign
6348 check_disable_warning -Wno-unused-const-variable
6349 check_disable_warning -Wno-bool-operation
6350
6351 check_disable_warning_headers(){
6352     warning_flag=-W${1#-Wno-}
6353     test_cflags $warning_flag && add_cflags_headers $1
6354 }
6355
6356 check_disable_warning_headers -Wno-deprecated-declarations
6357 check_disable_warning_headers -Wno-unused-variable
6358
6359 test_cc <<EOF && enable blocks_extension
6360 void (^block)(void);
6361 EOF
6362
6363 # add some linker flags
6364 check_ldflags -Wl,--warn-common
6365 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6366 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6367 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6368
6369 # add some strip flags
6370 check_stripflags -x
6371
6372 enabled neon_clobber_test &&
6373     check_ldflags -Wl,--wrap,avcodec_open2              \
6374                   -Wl,--wrap,avcodec_decode_audio4      \
6375                   -Wl,--wrap,avcodec_decode_video2      \
6376                   -Wl,--wrap,avcodec_decode_subtitle2   \
6377                   -Wl,--wrap,avcodec_encode_audio2      \
6378                   -Wl,--wrap,avcodec_encode_video2      \
6379                   -Wl,--wrap,avcodec_encode_subtitle    \
6380                   -Wl,--wrap,avcodec_send_packet        \
6381                   -Wl,--wrap,avcodec_receive_packet     \
6382                   -Wl,--wrap,avcodec_send_frame         \
6383                   -Wl,--wrap,avcodec_receive_frame      \
6384                   -Wl,--wrap,swr_convert                \
6385                   -Wl,--wrap,avresample_convert ||
6386     disable neon_clobber_test
6387
6388 enabled xmm_clobber_test &&
6389     check_ldflags -Wl,--wrap,avcodec_open2              \
6390                   -Wl,--wrap,avcodec_decode_audio4      \
6391                   -Wl,--wrap,avcodec_decode_video2      \
6392                   -Wl,--wrap,avcodec_decode_subtitle2   \
6393                   -Wl,--wrap,avcodec_encode_audio2      \
6394                   -Wl,--wrap,avcodec_encode_video2      \
6395                   -Wl,--wrap,avcodec_encode_subtitle    \
6396                   -Wl,--wrap,avcodec_send_packet        \
6397                   -Wl,--wrap,avcodec_receive_packet     \
6398                   -Wl,--wrap,avcodec_send_frame         \
6399                   -Wl,--wrap,avcodec_receive_frame      \
6400                   -Wl,--wrap,swr_convert                \
6401                   -Wl,--wrap,avresample_convert         \
6402                   -Wl,--wrap,sws_scale ||
6403     disable xmm_clobber_test
6404
6405 test_ld "cc" <<EOF && enable proper_dce
6406 extern const int array[512];
6407 static inline int func(void) { return array[0]; }
6408 int main(void) { return 0; }
6409 EOF
6410
6411 if enabled proper_dce; then
6412     echo "X { local: *; };" > $TMPV
6413     if test_ldflags -Wl,${version_script},$TMPV; then
6414         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6415         quotes='""'
6416         test_cc <<EOF && enable symver_asm_label
6417 void ff_foo(void) __asm__ ("av_foo@VERSION");
6418 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6419 EOF
6420         test_cc <<EOF && enable symver_gnu_asm
6421 __asm__(".symver ff_foo,av_foo@VERSION");
6422 void ff_foo(void) {}
6423 EOF
6424     fi
6425 fi
6426
6427 if [ -z "$optflags" ]; then
6428     if enabled small; then
6429         optflags=$cflags_size
6430     elif enabled optimizations; then
6431         optflags=$cflags_speed
6432     else
6433         optflags=$cflags_noopt
6434     fi
6435 fi
6436
6437 if [ -z "$nvccflags" ]; then
6438     nvccflags=$nvccflags_default
6439 fi
6440
6441 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6442     nvccflags="$nvccflags -m64"
6443 else
6444     nvccflags="$nvccflags -m32"
6445 fi
6446
6447 check_optflags(){
6448     check_cflags "$@"
6449     enabled lto && check_ldflags "$@"
6450 }
6451
6452 check_optflags $optflags
6453 check_optflags -fno-math-errno
6454 check_optflags -fno-signed-zeros
6455
6456 if enabled lto; then
6457     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6458     check_cflags  -flto
6459     check_ldflags -flto $cpuflags
6460     disable inline_asm_direct_symbol_refs
6461 fi
6462
6463 enabled ftrapv && check_cflags -ftrapv
6464
6465 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6466 int x;
6467 EOF
6468
6469
6470 if enabled icc; then
6471     # Just warnings, no remarks
6472     check_cflags -w1
6473     # -wd: Disable following warnings
6474     # 144, 167, 556: -Wno-pointer-sign
6475     # 188: enumerated type mixed with another type
6476     # 1292: attribute "foo" ignored
6477     # 1419: external declaration in primary source file
6478     # 10006: ignoring unknown option -fno-signed-zeros
6479     # 10148: ignoring unknown option -Wno-parentheses
6480     # 10156: ignoring option '-W'; no argument required
6481     # 13200: No EMMS instruction before call to function
6482     # 13203: No EMMS instruction before return from function
6483     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6484     # 11030: Warning unknown option --as-needed
6485     # 10156: ignoring option '-export'; no argument required
6486     check_ldflags -wd10156,11030
6487     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6488     enable ebp_available
6489     # The test above does not test linking
6490     enabled lto && disable symver_asm_label
6491     if enabled x86_32; then
6492         icc_version=$($cc -dumpversion)
6493         test ${icc_version%%.*} -ge 11 &&
6494             check_cflags -falign-stack=maintain-16-byte ||
6495             disable aligned_stack
6496     fi
6497 elif enabled gcc; then
6498     check_optflags -fno-tree-vectorize
6499     check_cflags -Werror=format-security
6500     check_cflags -Werror=implicit-function-declaration
6501     check_cflags -Werror=missing-prototypes
6502     check_cflags -Werror=return-type
6503     check_cflags -Werror=vla
6504     check_cflags -Wformat
6505     check_cflags -fdiagnostics-color=auto
6506     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6507 elif enabled llvm_gcc; then
6508     check_cflags -mllvm -stack-alignment=16
6509 elif enabled clang; then
6510     check_cflags -mllvm -stack-alignment=16
6511     check_cflags -mstack-alignment=16
6512     check_cflags -Qunused-arguments
6513     check_cflags -Werror=implicit-function-declaration
6514     check_cflags -Werror=missing-prototypes
6515     check_cflags -Werror=return-type
6516 elif enabled cparser; then
6517     add_cflags -Wno-missing-variable-declarations
6518     add_cflags -Wno-empty-statement
6519 elif enabled armcc; then
6520     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6521     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6522     # 2523: use of inline assembly is deprecated
6523     add_cflags -W${armcc_opt},--diag_suppress=2523
6524     add_cflags -W${armcc_opt},--diag_suppress=1207
6525     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6526     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6527     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6528     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6529 elif enabled pathscale; then
6530     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6531     disable inline_asm
6532 elif enabled_any msvc icl; then
6533     enabled x86_32 && disable aligned_stack
6534     enabled_all x86_32 debug && add_cflags -Oy-
6535     enabled debug && add_ldflags -debug
6536     enable pragma_deprecated
6537     if enabled icl; then
6538         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6539         # (correctly) on icl 13.x.
6540         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6541             add_cflags -Qansi-alias
6542         # Some inline asm is not compilable in debug
6543         if enabled debug; then
6544             disable ebp_available
6545             disable ebx_available
6546         fi
6547     fi
6548     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6549     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6550     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6551     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6552     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6553     # MSVC 2013 and newer can handle it fine.
6554     # If this declspec fails, force including stdlib.h before the restrict redefinition
6555     # happens in config.h.
6556     if [ $restrict_keyword != restrict ]; then
6557         test_cc <<EOF || add_cflags -FIstdlib.h
6558 __declspec($restrict_keyword) void *foo(int);
6559 EOF
6560     fi
6561     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6562     # Issue has been fixed in MSVC v19.00.24218.
6563     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6564         check_cflags -d2SSAOptimizer-
6565     # enable utf-8 source processing on VS2015 U2 and newer
6566     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6567         add_cflags -utf-8
6568 fi
6569
6570 for pfx in "" host_; do
6571     varname=${pfx%_}cc_type
6572     eval "type=\$$varname"
6573     if [ "$type" = "msvc" ]; then
6574         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6575 static inline int foo(int a) { return a; }
6576 EOF
6577     fi
6578 done
6579
6580 case $as_type in
6581     clang)
6582         add_asflags -Qunused-arguments
6583     ;;
6584 esac
6585
6586 case $ld_type in
6587     clang)
6588         check_ldflags -Qunused-arguments
6589     ;;
6590 esac
6591
6592 enable frame_thread_encoder
6593
6594 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6595
6596 check_deps $CONFIG_LIST       \
6597            $CONFIG_EXTRA      \
6598            $HAVE_LIST         \
6599            $ALL_COMPONENTS    \
6600
6601 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"
6602 enabled avresample && warn "Building with deprecated library libavresample"
6603
6604 if test $target_os = "haiku"; then
6605     disable memalign
6606     disable posix_memalign
6607 fi
6608
6609 flatten_extralibs(){
6610     unset nested_entries
6611     list_name=$1
6612     eval list=\$${1}
6613     for entry in $list; do
6614         entry_copy=$entry
6615         resolve entry_copy
6616         append nested_entries $(filter '*_extralibs' $entry_copy)
6617         flat_entries=$(filter_out '*_extralibs' $entry_copy)
6618         eval $entry="\$flat_entries"
6619     done
6620     append $list_name "$nested_entries"
6621
6622     resolve nested_entries
6623     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6624         flatten_extralibs $list_name
6625     fi
6626 }
6627
6628 flatten_extralibs_wrapper(){
6629     list_name=$1
6630     flatten_extralibs $list_name
6631     unique $list_name
6632     resolve $list_name
6633     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6634     eval printf \''%s'\' \""\$$list_name"\"
6635 }
6636
6637 for linkunit in $LIBRARY_LIST; do
6638     unset current_extralibs
6639     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
6640     for comp in ${components}; do
6641         enabled $comp || continue
6642         comp_extralibs="${comp}_extralibs"
6643         append current_extralibs $comp_extralibs
6644     done
6645     eval prepend ${linkunit}_extralibs $current_extralibs
6646 done
6647
6648 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
6649     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
6650 done
6651
6652 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6653
6654 for thread in $THREADS_LIST; do
6655     if enabled $thread; then
6656         test -n "$thread_type" &&
6657             die "ERROR: Only one thread type must be selected." ||
6658             thread_type="$thread"
6659     fi
6660 done
6661
6662 if disabled stdatomic; then
6663     if enabled atomics_gcc; then
6664         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
6665     elif enabled atomics_win32; then
6666         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
6667     elif enabled atomics_suncc; then
6668         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
6669     elif enabled pthreads; then
6670         add_compat atomics/pthread/stdatomic.o
6671         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
6672     else
6673         enabled threads && die "Threading is enabled, but no atomics are available"
6674         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
6675     fi
6676 fi
6677
6678 # Check if requested libraries were found.
6679 for lib in $AUTODETECT_LIBS; do
6680     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
6681 done
6682
6683 enabled zlib && add_cppflags -DZLIB_CONST
6684
6685 # conditional library dependencies, in linking order
6686 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6687 enabled afir_filter         && prepend avfilter_deps "avcodec"
6688 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6689 enabled aresample_filter    && prepend avfilter_deps "swresample"
6690 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6691 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6692 enabled convolve_filter     && prepend avfilter_deps "avcodec"
6693 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
6694 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6695 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6696 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6697 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6698 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
6699 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6700 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6701 enabled pan_filter          && prepend avfilter_deps "swresample"
6702 enabled pp_filter           && prepend avfilter_deps "postproc"
6703 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6704 enabled resample_filter && prepend avfilter_deps "avresample"
6705 enabled sab_filter          && prepend avfilter_deps "swscale"
6706 enabled scale_filter    && prepend avfilter_deps "swscale"
6707 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6708 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6709 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6710 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6711 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6712 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
6713 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6714 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6715 enabled spp_filter          && prepend avfilter_deps "avcodec"
6716 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6717 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6718 enabled zoompan_filter      && prepend avfilter_deps "swscale"
6719
6720 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6721
6722 #FIXME
6723 enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
6724
6725 enabled opus_decoder    && prepend avcodec_deps "swresample"
6726
6727 expand_deps(){
6728     lib_deps=${1}_deps
6729     eval "deps=\$$lib_deps"
6730     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6731     unique $lib_deps
6732 }
6733
6734 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6735 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6736
6737 map 'expand_deps $v' $LIBRARY_LIST
6738
6739 if test "$quiet" != "yes"; then
6740
6741 echo "install prefix            $prefix"
6742 echo "source path               $source_path"
6743 echo "C compiler                $cc"
6744 echo "C library                 $libc_type"
6745 if test "$host_cc" != "$cc"; then
6746     echo "host C compiler           $host_cc"
6747     echo "host C library            $host_libc_type"
6748 fi
6749 echo "ARCH                      $arch ($cpu)"
6750 if test "$build_suffix" != ""; then
6751     echo "build suffix              $build_suffix"
6752 fi
6753 if test "$progs_suffix" != ""; then
6754     echo "progs suffix              $progs_suffix"
6755 fi
6756 if test "$extra_version" != ""; then
6757     echo "version string suffix     $extra_version"
6758 fi
6759 echo "big-endian                ${bigendian-no}"
6760 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6761 if enabled x86; then
6762     echo "standalone assembly       ${x86asm-no}"
6763     echo "x86 assembler             ${x86asmexe}"
6764     echo "MMX enabled               ${mmx-no}"
6765     echo "MMXEXT enabled            ${mmxext-no}"
6766     echo "3DNow! enabled            ${amd3dnow-no}"
6767     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6768     echo "SSE enabled               ${sse-no}"
6769     echo "SSSE3 enabled             ${ssse3-no}"
6770     echo "AESNI enabled             ${aesni-no}"
6771     echo "AVX enabled               ${avx-no}"
6772     echo "AVX2 enabled              ${avx2-no}"
6773     echo "AVX-512 enabled           ${avx512-no}"
6774     echo "XOP enabled               ${xop-no}"
6775     echo "FMA3 enabled              ${fma3-no}"
6776     echo "FMA4 enabled              ${fma4-no}"
6777     echo "i686 features enabled     ${i686-no}"
6778     echo "CMOV is fast              ${fast_cmov-no}"
6779     echo "EBX available             ${ebx_available-no}"
6780     echo "EBP available             ${ebp_available-no}"
6781 fi
6782 if enabled aarch64; then
6783     echo "NEON enabled              ${neon-no}"
6784     echo "VFP enabled               ${vfp-no}"
6785 fi
6786 if enabled arm; then
6787     echo "ARMv5TE enabled           ${armv5te-no}"
6788     echo "ARMv6 enabled             ${armv6-no}"
6789     echo "ARMv6T2 enabled           ${armv6t2-no}"
6790     echo "VFP enabled               ${vfp-no}"
6791     echo "NEON enabled              ${neon-no}"
6792     echo "THUMB enabled             ${thumb-no}"
6793 fi
6794 if enabled mips; then
6795     echo "MIPS FPU enabled          ${mipsfpu-no}"
6796     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6797     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6798     echo "MIPS MSA enabled          ${msa-no}"
6799     echo "LOONGSON MMI enabled      ${mmi-no}"
6800 fi
6801 if enabled ppc; then
6802     echo "AltiVec enabled           ${altivec-no}"
6803     echo "VSX enabled               ${vsx-no}"
6804     echo "POWER8 enabled            ${power8-no}"
6805     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6806     echo "dcbzl available           ${dcbzl-no}"
6807 fi
6808 echo "debug symbols             ${debug-no}"
6809 echo "strip symbols             ${stripping-no}"
6810 echo "optimize for size         ${small-no}"
6811 echo "optimizations             ${optimizations-no}"
6812 echo "static                    ${static-no}"
6813 echo "shared                    ${shared-no}"
6814 echo "postprocessing support    ${postproc-no}"
6815 echo "network support           ${network-no}"
6816 echo "threading support         ${thread_type-no}"
6817 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6818 echo "texi2html enabled         ${texi2html-no}"
6819 echo "perl enabled              ${perl-no}"
6820 echo "pod2man enabled           ${pod2man-no}"
6821 echo "makeinfo enabled          ${makeinfo-no}"
6822 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6823 test -n "$random_seed" &&
6824     echo "random seed               ${random_seed}"
6825 echo
6826
6827 echo "External libraries:"
6828 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
6829 echo
6830
6831 echo "External libraries providing hardware acceleration:"
6832 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
6833 echo
6834
6835 echo "Libraries:"
6836 print_enabled '' $LIBRARY_LIST | print_in_columns
6837 echo
6838
6839 echo "Programs:"
6840 print_enabled '' $PROGRAM_LIST | print_in_columns
6841 echo
6842
6843 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6844     echo "Enabled ${type}s:"
6845     eval list=\$$(toupper $type)_LIST
6846     print_enabled '_*' $list | print_in_columns
6847     echo
6848 done
6849
6850 if test -n "$ignore_tests"; then
6851     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
6852     echo "Ignored FATE tests:"
6853     echo $ignore_tests | print_in_columns
6854     echo
6855 fi
6856
6857 echo "License: $license"
6858
6859 fi # test "$quiet" != "yes"
6860
6861 if test -n "$WARNINGS"; then
6862     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6863     enabled fatal_warnings && exit 1
6864 fi
6865
6866 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6867
6868 esc(){
6869     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
6870 }
6871
6872 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
6873
6874 enabled stripping || strip="echo skipping strip"
6875 enabled stripping || striptype=""
6876
6877 config_files="$TMPH ffbuild/config.mak doc/config.texi"
6878
6879 cat > ffbuild/config.mak <<EOF
6880 # Automatically generated by configure - do not modify!
6881 ifndef FFMPEG_CONFIG_MAK
6882 FFMPEG_CONFIG_MAK=1
6883 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6884 prefix=$prefix
6885 LIBDIR=\$(DESTDIR)$libdir
6886 SHLIBDIR=\$(DESTDIR)$shlibdir
6887 INCDIR=\$(DESTDIR)$incdir
6888 BINDIR=\$(DESTDIR)$bindir
6889 DATADIR=\$(DESTDIR)$datadir
6890 DOCDIR=\$(DESTDIR)$docdir
6891 MANDIR=\$(DESTDIR)$mandir
6892 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6893 INSTALL_NAME_DIR=$install_name_dir
6894 SRC_PATH=$source_path
6895 SRC_LINK=$source_link
6896 ifndef MAIN_MAKEFILE
6897 SRC_PATH:=\$(SRC_PATH:.%=..%)
6898 endif
6899 CC_IDENT=$cc_ident
6900 ARCH=$arch
6901 INTRINSICS=$intrinsics
6902 EXTERN_PREFIX=$extern_prefix
6903 CC=$cc
6904 CXX=$cxx
6905 AS=$as
6906 OBJCC=$objcc
6907 LD=$ld
6908 DEPCC=$dep_cc
6909 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6910 DEPAS=$as
6911 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6912 X86ASM=$x86asmexe
6913 DEPX86ASM=$x86asmexe
6914 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
6915 AR=$ar
6916 ARFLAGS=$arflags
6917 AR_O=$ar_o
6918 AR_CMD=$ar
6919 NM_CMD=$nm
6920 RANLIB=$ranlib
6921 STRIP=$strip
6922 STRIPTYPE=$striptype
6923 NVCC=$nvcc
6924 CP=cp -p
6925 LN_S=$ln_s
6926 CPPFLAGS=$CPPFLAGS
6927 CFLAGS=$CFLAGS
6928 CXXFLAGS=$CXXFLAGS
6929 OBJCFLAGS=$OBJCFLAGS
6930 ASFLAGS=$ASFLAGS
6931 NVCCFLAGS=$nvccflags
6932 AS_C=$AS_C
6933 AS_O=$AS_O
6934 OBJCC_C=$OBJCC_C
6935 OBJCC_E=$OBJCC_E
6936 OBJCC_O=$OBJCC_O
6937 CC_C=$CC_C
6938 CC_E=$CC_E
6939 CC_O=$CC_O
6940 CXX_C=$CXX_C
6941 CXX_O=$CXX_O
6942 NVCC_C=$NVCC_C
6943 NVCC_O=$NVCC_O
6944 LD_O=$LD_O
6945 X86ASM_O=$X86ASM_O
6946 LD_LIB=$LD_LIB
6947 LD_PATH=$LD_PATH
6948 DLLTOOL=$dlltool
6949 WINDRES=$windres
6950 DEPWINDRES=$dep_cc
6951 DOXYGEN=$doxygen
6952 LDFLAGS=$LDFLAGS
6953 LDEXEFLAGS=$LDEXEFLAGS
6954 LDSOFLAGS=$LDSOFLAGS
6955 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6956 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6957 X86ASMFLAGS=$X86ASMFLAGS
6958 BUILDSUF=$build_suffix
6959 PROGSSUF=$progs_suffix
6960 FULLNAME=$FULLNAME
6961 LIBPREF=$LIBPREF
6962 LIBSUF=$LIBSUF
6963 LIBNAME=$LIBNAME
6964 SLIBPREF=$SLIBPREF
6965 SLIBSUF=$SLIBSUF
6966 EXESUF=$EXESUF
6967 EXTRA_VERSION=$extra_version
6968 CCDEP=$CCDEP
6969 CXXDEP=$CXXDEP
6970 CCDEP_FLAGS=$CCDEP_FLAGS
6971 ASDEP=$ASDEP
6972 ASDEP_FLAGS=$ASDEP_FLAGS
6973 X86ASMDEP=$X86ASMDEP
6974 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
6975 CC_DEPFLAGS=$CC_DEPFLAGS
6976 AS_DEPFLAGS=$AS_DEPFLAGS
6977 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
6978 HOSTCC=$host_cc
6979 HOSTLD=$host_ld
6980 HOSTCFLAGS=$host_cflags
6981 HOSTCPPFLAGS=$host_cppflags
6982 HOSTEXESUF=$HOSTEXESUF
6983 HOSTLDFLAGS=$host_ldflags
6984 HOSTEXTRALIBS=$host_extralibs
6985 DEPHOSTCC=$host_cc
6986 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6987 HOSTCCDEP=$HOSTCCDEP
6988 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6989 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6990 HOSTCC_C=$HOSTCC_C
6991 HOSTCC_O=$HOSTCC_O
6992 HOSTLD_O=$HOSTLD_O
6993 TARGET_EXEC=$target_exec $target_exec_args
6994 TARGET_PATH=$target_path
6995 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6996 CFLAGS-ffplay=${sdl2_cflags}
6997 CFLAGS_HEADERS=$CFLAGS_HEADERS
6998 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6999 EXTRALIBS=$extralibs
7000 COMPAT_OBJS=$compat_objs
7001 INSTALL=$install
7002 LIBTARGET=${LIBTARGET}
7003 SLIBNAME=${SLIBNAME}
7004 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7005 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7006 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7007 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7008 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7009 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7010 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7011 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7012 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7013 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7014 NOREDZONE_FLAGS=$noredzone_flags
7015 LIBFUZZER_PATH=$libfuzzer_path
7016 IGNORE_TESTS=$ignore_tests
7017 EOF
7018
7019 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7020
7021 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7022     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7023 done
7024
7025 cat > $TMPH <<EOF
7026 /* Automatically generated by configure - do not modify! */
7027 #ifndef FFMPEG_CONFIG_H
7028 #define FFMPEG_CONFIG_H
7029 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7030 #define FFMPEG_LICENSE "$(c_escape $license)"
7031 #define CONFIG_THIS_YEAR 2018
7032 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7033 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7034 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7035 #define av_restrict $restrict_keyword
7036 #define EXTERN_PREFIX "${extern_prefix}"
7037 #define EXTERN_ASM ${extern_prefix}
7038 #define BUILDSUF "$build_suffix"
7039 #define SLIBSUF "$SLIBSUF"
7040 #define HAVE_MMX2 HAVE_MMXEXT
7041 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7042 EOF
7043
7044 test -n "$assert_level" &&
7045     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7046
7047 test -n "$malloc_prefix" &&
7048     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7049
7050 if enabled x86asm; then
7051     append config_files $TMPASM
7052     cat > $TMPASM <<EOF
7053 ; Automatically generated by configure - do not modify!
7054 EOF
7055 fi
7056
7057 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7058
7059
7060 mkdir -p doc
7061 mkdir -p tests
7062 mkdir -p tests/api
7063 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7064
7065 print_config ARCH_   "$config_files" $ARCH_LIST
7066 print_config HAVE_   "$config_files" $HAVE_LIST
7067 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7068                                      $CONFIG_EXTRA      \
7069                                      $ALL_COMPONENTS    \
7070
7071 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7072 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7073
7074 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7075 cp_if_changed $TMPH config.h
7076 touch ffbuild/.config
7077
7078 enabled x86asm && cp_if_changed $TMPASM config.asm
7079
7080 cat > $TMPH <<EOF
7081 /* Generated by ffmpeg configure */
7082 #ifndef AVUTIL_AVCONFIG_H
7083 #define AVUTIL_AVCONFIG_H
7084 EOF
7085
7086 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7087
7088 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7089
7090 cp_if_changed $TMPH libavutil/avconfig.h
7091
7092 # generate the lists of enabled components
7093 print_enabled_components(){
7094     file=$1
7095     struct_name=$2
7096     name=$3
7097     shift 3
7098     echo "static const $struct_name * const $name[] = {" > $TMPH
7099     for c in $*; do
7100         if enabled $c; then
7101             case $name in
7102                 indev_list)
7103                     c=$(add_suffix _demuxer $(remove_suffix _indev $c))
7104                 ;;
7105                 outdev_list)
7106                     c=$(add_suffix _muxer $(remove_suffix _outdev $c))
7107                 ;;
7108             esac
7109             printf "    &ff_%s,\n" $c >> $TMPH
7110         fi
7111     done
7112     echo "    NULL };" >> $TMPH
7113     cp_if_changed $TMPH $file
7114 }
7115
7116 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7117 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7118 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7119 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7120 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7121 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7122 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7123 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7124
7125 # Settings for pkg-config files
7126
7127 cat > $TMPH <<EOF
7128 # Automatically generated by configure - do not modify!
7129 shared=$shared
7130 build_suffix=$build_suffix
7131 prefix=$prefix
7132 libdir=$libdir
7133 incdir=$incdir
7134 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7135 source_path=${source_path}
7136 LIBPREF=${LIBPREF}
7137 LIBSUF=${LIBSUF}
7138 extralibs_avutil="$avutil_extralibs"
7139 extralibs_avcodec="$avcodec_extralibs"
7140 extralibs_avformat="$avformat_extralibs"
7141 extralibs_avdevice="$avdevice_extralibs"
7142 extralibs_avfilter="$avfilter_extralibs"
7143 extralibs_avresample="$avresample_extralibs"
7144 extralibs_postproc="$postproc_extralibs"
7145 extralibs_swscale="$swscale_extralibs"
7146 extralibs_swresample="$swresample_extralibs"
7147 EOF
7148
7149 for lib in $LIBRARY_LIST; do
7150     lib_deps="$(eval echo \$${lib}_deps)"
7151     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7152 done
7153
7154 cp_if_changed $TMPH ffbuild/config.sh