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:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  91   --enable-rpath           use rpath to allow installing libraries in paths
  92                            not part of the dynamic linker search path
  93                            use rpath when linking programs [USE WITH CARE]
  94   --install-name-dir=DIR   Darwin directory name for installed targets
  95
  96 Licensing options:
  97   --enable-gpl             allow use of GPL code, the resulting libs
  98                            and binaries will be under GPL [no]
  99   --enable-version3        upgrade (L)GPL to version 3 [no]
 100   --enable-nonfree         allow use of nonfree code, the resulting libs
 101                            and binaries will be unredistributable [no]
 102
 103 Configuration options:
 104   --disable-static         do not build static libraries [no]
 105   --enable-shared          build shared libraries [no]
 106   --enable-small           optimize for size instead of speed
 107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 108   --enable-gray            enable full grayscale support (slower color)
 109   --disable-swscale-alpha  disable alpha channel support in swscale
 110   --disable-all            disable building components, libraries and programs
 111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 112   --enable-raise-major     increase major version numbers in sonames [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   --disable-ffserver       disable ffserver build
 120
 121 Documentation options:
 122   --disable-doc            do not build documentation
 123   --disable-htmlpages      do not build HTML documentation pages
 124   --disable-manpages       do not build man documentation pages
 125   --disable-podpages       do not build POD documentation pages
 126   --disable-txtpages       do not build text documentation pages
 127
 128 Component options:
 129   --disable-avdevice       disable libavdevice build
 130   --disable-avcodec        disable libavcodec build
 131   --disable-avformat       disable libavformat build
 132   --disable-swresample     disable libswresample build
 133   --disable-swscale        disable libswscale build
 134   --disable-postproc       disable libpostproc build
 135   --disable-avfilter       disable libavfilter build
 136   --enable-avresample      enable libavresample build [no]
 137   --disable-pthreads       disable pthreads [autodetect]
 138   --disable-w32threads     disable Win32 threads [autodetect]
 139   --disable-os2threads     disable OS/2 threads [autodetect]
 140   --disable-network        disable network support [no]
 141   --disable-dct            disable DCT code
 142   --disable-dwt            disable DWT code
 143   --disable-error-resilience disable error resilience code
 144   --disable-lsp            disable LSP code
 145   --disable-lzo            disable LZO decoder code
 146   --disable-mdct           disable MDCT code
 147   --disable-rdft           disable RDFT code
 148   --disable-fft            disable FFT code
 149   --disable-faan           disable floating point AAN (I)DCT code
 150   --disable-pixelutils     disable pixel utils in libavutil
 151
 152 Individual component options:
 153   --disable-everything     disable all components listed below
 154   --disable-encoder=NAME   disable encoder NAME
 155   --enable-encoder=NAME    enable encoder NAME
 156   --disable-encoders       disable all encoders
 157   --disable-decoder=NAME   disable decoder NAME
 158   --enable-decoder=NAME    enable decoder NAME
 159   --disable-decoders       disable all decoders
 160   --disable-hwaccel=NAME   disable hwaccel NAME
 161   --enable-hwaccel=NAME    enable hwaccel NAME
 162   --disable-hwaccels       disable all hwaccels
 163   --disable-muxer=NAME     disable muxer NAME
 164   --enable-muxer=NAME      enable muxer NAME
 165   --disable-muxers         disable all muxers
 166   --disable-demuxer=NAME   disable demuxer NAME
 167   --enable-demuxer=NAME    enable demuxer NAME
 168   --disable-demuxers       disable all demuxers
 169   --enable-parser=NAME     enable parser NAME
 170   --disable-parser=NAME    disable parser NAME
 171   --disable-parsers        disable all parsers
 172   --enable-bsf=NAME        enable bitstream filter NAME
 173   --disable-bsf=NAME       disable bitstream filter NAME
 174   --disable-bsfs           disable all bitstream filters
 175   --enable-protocol=NAME   enable protocol NAME
 176   --disable-protocol=NAME  disable protocol NAME
 177   --disable-protocols      disable all protocols
 178   --enable-indev=NAME      enable input device NAME
 179   --disable-indev=NAME     disable input device NAME
 180   --disable-indevs         disable input devices
 181   --enable-outdev=NAME     enable output device NAME
 182   --disable-outdev=NAME    disable output device NAME
 183   --disable-outdevs        disable output devices
 184   --disable-devices        disable all devices
 185   --enable-filter=NAME     enable filter NAME
 186   --disable-filter=NAME    disable filter NAME
 187   --disable-filters        disable all filters
 188
 189 External library support:
 190
 191   Using any of the following switches will allow FFmpeg to link to the
 192   corresponding external library. All the components depending on that library
 193   will become enabled, if all their other dependencies are met and they are not
 194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 195   libwavpack and allow the libwavpack encoder to be built, unless it is
 196   specifically disabled with --disable-encoder=libwavpack.
 197
 198   Note that only the system libraries are auto-detected. All the other external
 199   libraries must be explicitly enabled.
 200
 201   Also note that the following help text describes the purpose of the libraries
 202   themselves, not all their features will necessarily be usable by FFmpeg.
 203
 204   --enable-avisynth        enable reading of AviSynth script files [no]
 205   --disable-bzlib          disable bzlib [autodetect]
 206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 207   --enable-frei0r          enable frei0r video filtering [no]
 208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 209                            if openssl, librtmp or gmp is not used [no]
 210   --enable-gmp             enable gmp, needed for rtmp(t)e support
 211                            if openssl or librtmp is not used [no]
 212   --enable-gnutls          enable gnutls, needed for https support
 213                            if openssl is not used [no]
 214   --disable-iconv          disable iconv [autodetect]
 215   --enable-jni             enable JNI support [no]
 216   --enable-ladspa          enable LADSPA audio filtering [no]
 217   --enable-libass          enable libass subtitles rendering,
 218                            needed for subtitles and ass filter [no]
 219   --enable-libbluray       enable BluRay reading using libbluray [no]
 220   --enable-libbs2b         enable bs2b DSP library [no]
 221   --enable-libcaca         enable textual display using libcaca [no]
 222   --enable-libcelt         enable CELT decoding via libcelt [no]
 223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 225                            and libraw1394 [no]
 226   --enable-libebur128      enable libebur128 for EBU R128 measurement,
 227                            needed for loudnorm filter [no]
 228   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 229   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 230   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 231   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 232   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 233   --enable-libgme          enable Game Music Emu via libgme [no]
 234   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 235   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 236   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 237   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 238   --enable-libmodplug      enable ModPlug via libmodplug [no]
 239   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 240   --enable-libnut          enable NUT (de)muxing via libnut,
 241                            native (de)muxer exists [no]
 242   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 243   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 244   --enable-libopencv       enable video filtering via libopencv [no]
 245   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 246   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 247   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 248   --enable-libopus         enable Opus de/encoding via libopus [no]
 249   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 250   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 251   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 252   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 253   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 254   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 255   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 256   --enable-libsoxr         enable Include libsoxr resampling [no]
 257   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 258   --enable-libssh          enable SFTP protocol via libssh [no]
 259   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 260   --enable-libtheora       enable Theora encoding via libtheora [no]
 261   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 262   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 263   --enable-libvidstab      enable video stabilization using vid.stab [no]
 264   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 265   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 266                            native implementation exists [no]
 267   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 268   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 269   --enable-libwebp         enable WebP encoding via libwebp [no]
 270   --enable-libx264         enable H.264 encoding via x264 [no]
 271   --enable-libx265         enable HEVC encoding via x265 [no]
 272   --enable-libxavs         enable AVS encoding via xavs [no]
 273   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 274   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 275   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 276   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 277   --enable-libxvid         enable Xvid encoding via xvidcore,
 278                            native MPEG-4/Xvid encoder exists [no]
 279   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 280   --enable-libzmq          enable message passing via libzmq [no]
 281   --enable-libzvbi         enable teletext support via libzvbi [no]
 282   --disable-lzma           disable lzma [autodetect]
 283   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 284   --enable-mediacodec      enable Android MediaCodec support [no]
 285   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 286   --enable-openal          enable OpenAL 1.1 capture support [no]
 287   --enable-opencl          enable OpenCL code
 288   --enable-opengl          enable OpenGL rendering [no]
 289   --enable-openssl         enable openssl, needed for https support
 290                            if gnutls is not used [no]
 291   --disable-schannel       disable SChannel SSP, needed for TLS support on
 292                            Windows if openssl and gnutls are not used [autodetect]
 293   --disable-sdl2           disable sdl2 [autodetect]
 294   --disable-securetransport disable Secure Transport, needed for TLS support
 295                            on OSX if openssl and gnutls are not used [autodetect]
 296   --enable-x11grab         enable X11 grabbing (legacy) [no]
 297   --disable-xlib           disable xlib [autodetect]
 298   --disable-zlib           disable zlib [autodetect]
 299
 300   The following libraries provide various hardware acceleration features:
 301   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 302   --enable-cuda            enable dynamically linked Nvidia CUDA code [no]
 303   --enable-cuvid           enable Nvidia CUVID support [autodetect]
 304   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 305   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 306   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 307   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 308   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 309   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 310   --enable-omx             enable OpenMAX IL code [no]
 311   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 312   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 313   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
 314   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 315   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 316
 317 Toolchain options:
 318   --arch=ARCH              select architecture [$arch]
 319   --cpu=CPU                select the minimum required CPU (affects
 320                            instruction selection, may crash on older CPUs)
 321   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 322   --progs-suffix=SUFFIX    program name suffix []
 323   --enable-cross-compile   assume a cross-compiler is used
 324   --sysroot=PATH           root of cross-build tree
 325   --sysinclude=PATH        location of cross-build system headers
 326   --target-os=OS           compiler targets OS [$target_os]
 327   --target-exec=CMD        command to run executables on target
 328   --target-path=DIR        path to view of build directory on target
 329   --target-samples=DIR     path to samples directory on target
 330   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 331   --toolchain=NAME         set tool defaults according to NAME
 332   --nm=NM                  use nm tool NM [$nm_default]
 333   --ar=AR                  use archive tool AR [$ar_default]
 334   --as=AS                  use assembler AS [$as_default]
 335   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 336   --strip=STRIP            use strip tool STRIP [$strip_default]
 337   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 338   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 339   --cc=CC                  use C compiler CC [$cc_default]
 340   --cxx=CXX                use C compiler CXX [$cxx_default]
 341   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 342   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 343   --ld=LD                  use linker LD [$ld_default]
 344   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 345   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 346   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 347   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 348   --host-cc=HOSTCC         use host C compiler HOSTCC
 349   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 350   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 351   --host-ld=HOSTLD         use host linker HOSTLD
 352   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 353   --host-libs=HLIBS        use libs HLIBS when linking for host
 354   --host-os=OS             compiler host OS [$target_os]
 355   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 356   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 357   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 358   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 359   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 360   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 361   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 362   --extra-version=STRING   version string suffix []
 363   --optflags=OPTFLAGS      override optimization-related compiler flags
 364   --build-suffix=SUFFIX    library name suffix []
 365   --enable-pic             build position-independent code
 366   --enable-thumb           compile for Thumb instruction set
 367   --enable-lto             use link-time optimization
 368   --env="ENV=override"     override the environment variables
 369
 370 Advanced options (experts only):
 371   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 372   --custom-allocator=NAME  use a supported custom allocator
 373   --disable-symver         disable symbol versioning
 374   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 375   --disable-safe-bitstream-reader
 376                            disable buffer boundary checking in bitreaders
 377                            (faster, but may crash)
 378   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 379   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 380
 381 Optimization options (experts only):
 382   --disable-asm            disable all assembly optimizations
 383   --disable-altivec        disable AltiVec optimizations
 384   --disable-vsx            disable VSX optimizations
 385   --disable-power8         disable POWER8 optimizations
 386   --disable-amd3dnow       disable 3DNow! optimizations
 387   --disable-amd3dnowext    disable 3DNow! extended optimizations
 388   --disable-mmx            disable MMX optimizations
 389   --disable-mmxext         disable MMXEXT optimizations
 390   --disable-sse            disable SSE optimizations
 391   --disable-sse2           disable SSE2 optimizations
 392   --disable-sse3           disable SSE3 optimizations
 393   --disable-ssse3          disable SSSE3 optimizations
 394   --disable-sse4           disable SSE4 optimizations
 395   --disable-sse42          disable SSE4.2 optimizations
 396   --disable-avx            disable AVX optimizations
 397   --disable-xop            disable XOP optimizations
 398   --disable-fma3           disable FMA3 optimizations
 399   --disable-fma4           disable FMA4 optimizations
 400   --disable-avx2           disable AVX2 optimizations
 401   --disable-aesni          disable AESNI optimizations
 402   --disable-armv5te        disable armv5te optimizations
 403   --disable-armv6          disable armv6 optimizations
 404   --disable-armv6t2        disable armv6t2 optimizations
 405   --disable-vfp            disable VFP optimizations
 406   --disable-neon           disable NEON optimizations
 407   --disable-inline-asm     disable use of inline assembly
 408   --disable-yasm           disable use of nasm/yasm assembly
 409   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 410   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 411   --disable-msa            disable MSA optimizations
 412   --disable-mipsfpu        disable floating point MIPS optimizations
 413   --disable-mmi            disable Loongson SIMD optimizations
 414   --disable-fast-unaligned consider unaligned accesses slow
 415
 416 Developer options (useful when working on FFmpeg itself):
 417   --disable-debug          disable debugging symbols
 418   --enable-debug=LEVEL     set the debug level [$debuglevel]
 419   --disable-optimizations  disable compiler optimizations
 420   --enable-extra-warnings  enable more compiler warnings
 421   --disable-stripping      disable stripping of executables and shared libraries
 422   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 423                            2 causes a slowdown at runtime.
 424   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 425   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 426                            leaks and errors, using the specified valgrind binary.
 427                            Cannot be combined with --target-exec
 428   --enable-ftrapv          Trap arithmetic overflows
 429   --samples=PATH           location of test samples for FATE, if not set use
 430                            \$FATE_SAMPLES at make invocation time.
 431   --enable-neon-clobber-test check NEON registers for clobbering (should be
 432                            used only for debugging purposes)
 433   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 434                            should be used only for debugging purposes)
 435   --enable-random          randomly enable/disable components
 436   --disable-random
 437   --enable-random=LIST     randomly enable/disable specific components or
 438   --disable-random=LIST    component groups. LIST is a comma-separated list
 439                            of NAME[:PROB] entries where NAME is a component
 440                            (group) and PROB the probability associated with
 441                            NAME (default 0.5).
 442   --random-seed=VALUE      seed value for --enable/disable-random
 443   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 444                            (only applies to --disable-optimizations builds)
 445
 446 NOTE: Object files are built at the place where configure is launched.
 447 EOF
 448   exit 0
 449 }
 450
 451 quotes='""'
 452 if test -t 1 && which tput >/dev/null 2>&1; then
 453     ncolors=$(tput colors)
 454     if test -n "$ncolors" && test $ncolors -ge 8; then
 455         bold_color=$(tput bold)
 456         warn_color=$(tput setaf 3)
 457         error_color=$(tput setaf 1)
 458         reset_color=$(tput sgr0)
 459     fi
 460     # 72 used instead of 80 since that's the default of pr
 461     ncols=$(tput cols)
 462 fi
 463 : ${ncols:=72}
 464
 465 log(){
 466     echo "$@" >> $logfile
 467 }
 468
 469 log_file(){
 470     log BEGIN $1
 471     pr -n -t $1 >> $logfile
 472     log END $1
 473 }
 474
 475 warn(){
 476     log "WARNING: $*"
 477     WARNINGS="${WARNINGS}WARNING: $*\n"
 478 }
 479
 480 die(){
 481     log "$@"
 482     echo "$error_color$bold_color$@$reset_color"
 483     cat <<EOF
 484
 485 If you think configure made a mistake, make sure you are using the latest
 486 version from Git.  If the latest version fails, report the problem to the
 487 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 488 EOF
 489     if disabled logging; then
 490         cat <<EOF
 491 Rerun configure with logging enabled (do not use --disable-logging), and
 492 include the log this produces with your report.
 493 EOF
 494     else
 495         cat <<EOF
 496 Include the log file "$logfile" produced by configure as this will help
 497 solve the problem.
 498 EOF
 499     fi
 500     exit 1
 501 }
 502
 503 # Avoid locale weirdness, besides we really just want to translate ASCII.
 504 toupper(){
 505     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 506 }
 507
 508 tolower(){
 509     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 510 }
 511
 512 c_escape(){
 513     echo "$*" | sed 's/["\\]/\\\0/g'
 514 }
 515
 516 sh_quote(){
 517     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 518     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 519     echo "$v"
 520 }
 521
 522 cleanws(){
 523     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 524 }
 525
 526 filter(){
 527     pat=$1
 528     shift
 529     for v; do
 530         eval "case $v in $pat) echo $v ;; esac"
 531     done
 532 }
 533
 534 filter_out(){
 535     pat=$1
 536     shift
 537     for v; do
 538         eval "case $v in $pat) ;; *) echo $v ;; esac"
 539     done
 540 }
 541
 542 map(){
 543     m=$1
 544     shift
 545     for v; do eval $m; done
 546 }
 547
 548 add_suffix(){
 549     suffix=$1
 550     shift
 551     for v; do echo ${v}${suffix}; done
 552 }
 553
 554 set_all(){
 555     value=$1
 556     shift
 557     for var in $*; do
 558         eval $var=$value
 559     done
 560 }
 561
 562 set_weak(){
 563     value=$1
 564     shift
 565     for var; do
 566         eval : \${$var:=$value}
 567     done
 568 }
 569
 570 sanitize_var_name(){
 571     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 572 }
 573
 574 set_safe(){
 575     var=$1
 576     shift
 577     eval $(sanitize_var_name "$var")='$*'
 578 }
 579
 580 get_safe(){
 581     eval echo \$$(sanitize_var_name "$1")
 582 }
 583
 584 pushvar(){
 585     for pvar in $*; do
 586         eval level=\${${pvar}_level:=0}
 587         eval ${pvar}_${level}="\$$pvar"
 588         eval ${pvar}_level=$(($level+1))
 589     done
 590 }
 591
 592 popvar(){
 593     for pvar in $*; do
 594         eval level=\${${pvar}_level:-0}
 595         test $level = 0 && continue
 596         eval level=$(($level-1))
 597         eval $pvar="\${${pvar}_${level}}"
 598         eval ${pvar}_level=$level
 599         eval unset ${pvar}_${level}
 600     done
 601 }
 602
 603 enable(){
 604     set_all yes $*
 605 }
 606
 607 disable(){
 608     set_all no $*
 609 }
 610
 611 enable_weak(){
 612     set_weak yes $*
 613 }
 614
 615 disable_weak(){
 616     set_weak no $*
 617 }
 618
 619 enable_safe(){
 620     for var; do
 621         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 622     done
 623 }
 624
 625 disable_safe(){
 626     for var; do
 627         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 628     done
 629 }
 630
 631 do_enable_deep(){
 632     for var; do
 633         enabled $var && continue
 634         eval sel="\$${var}_select"
 635         eval sgs="\$${var}_suggest"
 636         pushvar var sgs
 637         enable_deep $sel
 638         popvar sgs
 639         enable_deep_weak $sgs
 640         popvar var
 641     done
 642 }
 643
 644 enable_deep(){
 645     do_enable_deep $*
 646     enable $*
 647 }
 648
 649 enable_deep_weak(){
 650     for var; do
 651         disabled $var && continue
 652         pushvar var
 653         do_enable_deep $var
 654         popvar var
 655         enable_weak $var
 656     done
 657 }
 658
 659 enabled(){
 660     test "${1#!}" = "$1" && op='=' || op=!=
 661     eval test "x\$${1#!}" $op "xyes"
 662 }
 663
 664 disabled(){
 665     test "${1#!}" = "$1" && op='=' || op=!=
 666     eval test "x\$${1#!}" $op "xno"
 667 }
 668
 669 enabled_all(){
 670     for opt; do
 671         enabled $opt || return 1
 672     done
 673 }
 674
 675 disabled_all(){
 676     for opt; do
 677         disabled $opt || return 1
 678     done
 679 }
 680
 681 enabled_any(){
 682     for opt; do
 683         enabled $opt && return 0
 684     done
 685 }
 686
 687 disabled_any(){
 688     for opt; do
 689         disabled $opt && return 0
 690     done
 691     return 1
 692 }
 693
 694 set_default(){
 695     for opt; do
 696         eval : \${$opt:=\$${opt}_default}
 697     done
 698 }
 699
 700 is_in(){
 701     value=$1
 702     shift
 703     for var in $*; do
 704         [ $var = $value ] && return 0
 705     done
 706     return 1
 707 }
 708
 709 do_check_deps(){
 710     for cfg; do
 711         cfg="${cfg#!}"
 712         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 713         disabled ${cfg}_checking && continue
 714         enable ${cfg}_checking
 715         append allopts $cfg
 716
 717         eval dep_all="\$${cfg}_deps"
 718         eval dep_any="\$${cfg}_deps_any"
 719         eval dep_sel="\$${cfg}_select"
 720         eval dep_sgs="\$${cfg}_suggest"
 721         eval dep_ifa="\$${cfg}_if"
 722         eval dep_ifn="\$${cfg}_if_any"
 723
 724         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 725         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 726         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 727
 728         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 729         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 730         enabled_all  $dep_all || disable $cfg
 731         enabled_any  $dep_any || disable $cfg
 732         disabled_any $dep_sel && disable $cfg
 733
 734         if enabled $cfg; then
 735             enable_deep $dep_sel
 736             enable_deep_weak $dep_sgs
 737         fi
 738
 739         disable ${cfg}_checking
 740     done
 741 }
 742
 743 check_deps(){
 744     unset allopts
 745
 746     do_check_deps "$@"
 747
 748     for cfg in $allopts; do
 749         enabled $cfg || continue
 750         eval dep_extralibs="\$${cfg}_extralibs"
 751         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 752     done
 753 }
 754
 755 print_config(){
 756     pfx=$1
 757     files=$2
 758     shift 2
 759     map 'eval echo "$v \${$v:-no}"' "$@" |
 760     awk "BEGIN { split(\"$files\", files) }
 761         {
 762             c = \"$pfx\" toupper(\$1);
 763             v = \$2;
 764             sub(/yes/, 1, v);
 765             sub(/no/,  0, v);
 766             for (f in files) {
 767                 file = files[f];
 768                 if (file ~ /\\.h\$/) {
 769                     printf(\"#define %s %d\\n\", c, v) >>file;
 770                 } else if (file ~ /\\.asm\$/) {
 771                     printf(\"%%define %s %d\\n\", c, v) >>file;
 772                 } else if (file ~ /\\.mak\$/) {
 773                     n = -v ? \"\" : \"!\";
 774                     printf(\"%s%s=yes\\n\", n, c) >>file;
 775                 } else if (file ~ /\\.texi\$/) {
 776                     pre = -v ? \"\" : \"@c \";
 777                     yesno = \$2;
 778                     c2 = tolower(c);
 779                     gsub(/_/, \"-\", c2);
 780                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 781                 }
 782             }
 783         }"
 784 }
 785
 786 print_enabled(){
 787     suf=$1
 788     shift
 789     for v; do
 790         enabled $v && printf "%s\n" ${v%$suf}
 791     done
 792 }
 793
 794 append(){
 795     var=$1
 796     shift
 797     eval "$var=\"\$$var $*\""
 798 }
 799
 800 prepend(){
 801     var=$1
 802     shift
 803     eval "$var=\"$* \$$var\""
 804 }
 805
 806 unique(){
 807     var=$1
 808     uniq_list=""
 809     for tok in $(eval echo \$$var); do
 810         uniq_list="$(filter_out $tok $uniq_list) $tok"
 811     done
 812     eval "$var=\"${uniq_list}\""
 813 }
 814
 815 add_cppflags(){
 816     append CPPFLAGS "$@"
 817 }
 818
 819 add_cflags(){
 820     append CFLAGS $($cflags_filter "$@")
 821 }
 822
 823 add_cxxflags(){
 824     append CXXFLAGS $($cflags_filter "$@")
 825 }
 826
 827 add_asflags(){
 828     append ASFLAGS $($asflags_filter "$@")
 829 }
 830
 831 add_objcflags(){
 832     append OBJCFLAGS $($objcflags_filter "$@")
 833 }
 834
 835 add_ldflags(){
 836     append LDFLAGS $($ldflags_filter "$@")
 837 }
 838
 839 add_ldexeflags(){
 840     append LDEXEFLAGS $($ldflags_filter "$@")
 841 }
 842
 843 add_ldlibflags(){
 844     append LDLIBFLAGS $($ldflags_filter "$@")
 845 }
 846
 847 add_stripflags(){
 848     append ASMSTRIPFLAGS "$@"
 849 }
 850
 851 add_extralibs(){
 852     prepend extralibs $($ldflags_filter "$@")
 853 }
 854
 855 add_host_cppflags(){
 856     append host_cppflags "$@"
 857 }
 858
 859 add_host_cflags(){
 860     append host_cflags $($host_cflags_filter "$@")
 861 }
 862
 863 add_host_ldflags(){
 864     append host_ldflags $($host_ldflags_filter "$@")
 865 }
 866
 867 add_compat(){
 868     append compat_objs $1
 869     shift
 870     map 'add_cppflags -D$v' "$@"
 871 }
 872
 873 check_cmd(){
 874     log "$@"
 875     "$@" >> $logfile 2>&1
 876 }
 877
 878 check_stat(){
 879     log check_stat "$@"
 880     stat "$1" >> $logfile 2>&1
 881 }
 882
 883 cc_o(){
 884     eval printf '%s\\n' $CC_O
 885 }
 886
 887 cc_e(){
 888     eval printf '%s\\n' $CC_E
 889 }
 890
 891 check_cc(){
 892     log check_cc "$@"
 893     cat > $TMPC
 894     log_file $TMPC
 895     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 896 }
 897
 898 check_cxx(){
 899     log check_cxx "$@"
 900     cat > $TMPCPP
 901     log_file $TMPCPP
 902     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 903 }
 904
 905 check_objcc(){
 906     log check_objcc "$@"
 907     cat > $TMPM
 908     log_file $TMPM
 909     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 910 }
 911
 912 check_cpp(){
 913     log check_cpp "$@"
 914     cat > $TMPC
 915     log_file $TMPC
 916     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 917 }
 918
 919 as_o(){
 920     eval printf '%s\\n' $AS_O
 921 }
 922
 923 check_as(){
 924     log check_as "$@"
 925     cat > $TMPS
 926     log_file $TMPS
 927     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 928 }
 929
 930 check_inline_asm(){
 931     log check_inline_asm "$@"
 932     name="$1"
 933     code="$2"
 934     shift 2
 935     disable $name
 936     check_cc "$@" <<EOF && enable $name
 937 void foo(void){ __asm__ volatile($code); }
 938 EOF
 939 }
 940
 941 check_inline_asm_flags(){
 942     log check_inline_asm_flags "$@"
 943     name="$1"
 944     code="$2"
 945     flags=''
 946     shift 2
 947     while [ "$1" != "" ]; do
 948       append flags $1
 949       shift
 950     done;
 951     disable $name
 952     cat > $TMPC <<EOF
 953 void foo(void){ __asm__ volatile($code); }
 954 EOF
 955     log_file $TMPC
 956     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 957     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 958 }
 959
 960 check_insn(){
 961     log check_insn "$@"
 962     check_inline_asm ${1}_inline "\"$2\""
 963     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 964 }
 965
 966 check_yasm(){
 967     log check_yasm "$@"
 968     echo "$1" > $TMPS
 969     log_file $TMPS
 970     shift 1
 971     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 972 }
 973
 974 ld_o(){
 975     eval printf '%s\\n' $LD_O
 976 }
 977
 978 check_ld(){
 979     log check_ld "$@"
 980     type=$1
 981     shift 1
 982     flags=$(filter_out '-l*|*.so' $@)
 983     libs=$(filter '-l*|*.so' $@)
 984     check_$type $($cflags_filter $flags) || return
 985     flags=$($ldflags_filter $flags)
 986     libs=$($ldflags_filter $libs)
 987     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 988 }
 989
 990 print_include(){
 991     hdr=$1
 992     test "${hdr%.h}" = "${hdr}" &&
 993         echo "#include $hdr"    ||
 994         echo "#include <$hdr>"
 995 }
 996
 997 check_code(){
 998     log check_code "$@"
 999     check=$1
1000     headers=$2
1001     code=$3
1002     shift 3
1003     {
1004         for hdr in $headers; do
1005             print_include $hdr
1006         done
1007         echo "int main(void) { $code; return 0; }"
1008     } | check_$check "$@"
1009 }
1010
1011 check_cppflags(){
1012     log check_cppflags "$@"
1013     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1014 int x;
1015 EOF
1016 }
1017
1018 test_cflags(){
1019     log test_cflags "$@"
1020     set -- $($cflags_filter "$@")
1021     check_cc "$@" <<EOF
1022 int x;
1023 EOF
1024 }
1025
1026 check_cflags(){
1027     log check_cflags "$@"
1028     test_cflags "$@" && add_cflags "$@"
1029 }
1030
1031 check_cxxflags(){
1032     log check_cxxflags "$@"
1033     set -- $($cflags_filter "$@")
1034     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1035 int x;
1036 EOF
1037 }
1038
1039 test_objcflags(){
1040     log test_cflags "$@"
1041     set -- $($cflags_filter "$@")
1042     check_objcc "$@" <<EOF
1043 int x;
1044 EOF
1045 }
1046
1047 check_objcflags(){
1048     log check_cflags "$@"
1049     test_objcflags "$@" && add_objcflags "$@"
1050 }
1051
1052 test_ldflags(){
1053     log test_ldflags "$@"
1054     check_ld "cc" "$@" <<EOF
1055 int main(void){ return 0; }
1056 EOF
1057 }
1058
1059 check_ldflags(){
1060     log check_ldflags "$@"
1061     test_ldflags "$@" && add_ldflags "$@"
1062 }
1063
1064 test_stripflags(){
1065     log test_stripflags "$@"
1066     # call check_cc to get a fresh TMPO
1067     check_cc <<EOF
1068 int main(void) { return 0; }
1069 EOF
1070     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1071 }
1072
1073 check_stripflags(){
1074     log check_stripflags "$@"
1075     test_stripflags "$@" && add_stripflags "$@"
1076 }
1077
1078 check_header(){
1079     log check_header "$@"
1080     header=$1
1081     shift
1082     disable_safe $header
1083     check_cpp "$@" <<EOF && enable_safe $header
1084 #include <$header>
1085 int x;
1086 EOF
1087 }
1088
1089 check_header_objcc(){
1090     log check_header_objcc "$@"
1091     rm -f -- "$TMPO"
1092     header=$1
1093     shift
1094     disable_safe $header
1095     {
1096        echo "#include <$header>"
1097        echo "int main(void) { return 0; }"
1098     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1099 }
1100
1101 check_func(){
1102     log check_func "$@"
1103     func=$1
1104     shift
1105     disable $func
1106     check_ld "cc" "$@" <<EOF && enable $func
1107 extern int $func();
1108 int main(void){ $func(); }
1109 EOF
1110 }
1111
1112 check_complexfunc(){
1113     log check_complexfunc "$@"
1114     func=$1
1115     narg=$2
1116     shift 2
1117     test $narg = 2 && args="f, g" || args="f * I"
1118     disable $func
1119     check_ld "cc" "$@" <<EOF && enable $func
1120 #include <complex.h>
1121 #include <math.h>
1122 float foo(complex float f, complex float g) { return $func($args); }
1123 int main(void){ return (int) foo; }
1124 EOF
1125 }
1126
1127 check_mathfunc(){
1128     log check_mathfunc "$@"
1129     func=$1
1130     narg=$2
1131     shift 2
1132     test $narg = 2 && args="f, g" || args="f"
1133     disable $func
1134     check_ld "cc" "$@" <<EOF && enable $func
1135 #include <math.h>
1136 float foo(float f, float g) { return $func($args); }
1137 int main(void){ return (int) foo; }
1138 EOF
1139 }
1140
1141 check_func_headers(){
1142     log check_func_headers "$@"
1143     headers=$1
1144     funcs=$2
1145     shift 2
1146     {
1147         for hdr in $headers; do
1148             print_include $hdr
1149         done
1150         for func in $funcs; do
1151             echo "long check_$func(void) { return (long) $func; }"
1152         done
1153         echo "int main(void) { return 0; }"
1154     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1155 }
1156
1157 check_class_headers_cpp(){
1158     log check_class_headers_cpp "$@"
1159     headers=$1
1160     classes=$2
1161     shift 2
1162     {
1163         for hdr in $headers; do
1164             echo "#include <$hdr>"
1165         done
1166         echo "int main(void) { "
1167         i=1
1168         for class in $classes; do
1169             echo "$class obj$i;"
1170             i=$(expr $i + 1)
1171         done
1172         echo "return 0; }"
1173     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1174 }
1175
1176 check_cpp_condition(){
1177     log check_cpp_condition "$@"
1178     header=$1
1179     condition=$2
1180     shift 2
1181     check_cpp "$@" <<EOF
1182 #include <$header>
1183 #if !($condition)
1184 #error "unsatisfied condition: $condition"
1185 #endif
1186 EOF
1187 }
1188
1189 check_lib(){
1190     log check_lib "$@"
1191     header="$1"
1192     func="$2"
1193     shift 2
1194     check_header $header && check_func $func "$@" && add_extralibs "$@"
1195 }
1196
1197 check_lib2(){
1198     log check_lib2 "$@"
1199     headers="$1"
1200     funcs="$2"
1201     shift 2
1202     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1203 }
1204
1205 check_lib_cpp(){
1206     log check_lib_cpp "$@"
1207     headers="$1"
1208     classes="$2"
1209     shift 2
1210     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1211 }
1212
1213 check_pkg_config(){
1214     log check_pkg_config "$@"
1215     pkgandversion="$1"
1216     pkg="${1%% *}"
1217     headers="$2"
1218     funcs="$3"
1219     shift 3
1220     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1221     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1222     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1223     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1224         set_safe "${pkg}_cflags" $pkg_cflags   &&
1225         set_safe "${pkg}_libs"   $pkg_libs
1226 }
1227
1228 check_exec(){
1229     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1230 }
1231
1232 check_exec_crash(){
1233     code=$(cat)
1234
1235     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1236     # are safe but may not be available everywhere.  Thus we use
1237     # raise(SIGTERM) instead.  The check is run in a subshell so we
1238     # can redirect the "Terminated" message from the shell.  SIGBUS
1239     # is not defined by standard C so it is used conditionally.
1240
1241     (check_exec "$@") >> $logfile 2>&1 <<EOF
1242 #include <signal.h>
1243 static void sighandler(int sig){
1244     raise(SIGTERM);
1245 }
1246 int foo(void){
1247     $code
1248 }
1249 int (*func_ptr)(void) = foo;
1250 int main(void){
1251     signal(SIGILL, sighandler);
1252     signal(SIGFPE, sighandler);
1253     signal(SIGSEGV, sighandler);
1254 #ifdef SIGBUS
1255     signal(SIGBUS, sighandler);
1256 #endif
1257     return func_ptr();
1258 }
1259 EOF
1260 }
1261
1262 check_type(){
1263     log check_type "$@"
1264     headers=$1
1265     type=$2
1266     shift 2
1267     disable_safe "$type"
1268     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1269 }
1270
1271 check_struct(){
1272     log check_struct "$@"
1273     headers=$1
1274     struct=$2
1275     member=$3
1276     shift 3
1277     disable_safe "${struct}_${member}"
1278     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1279         enable_safe "${struct}_${member}"
1280 }
1281
1282 check_builtin(){
1283     log check_builtin "$@"
1284     name=$1
1285     headers=$2
1286     builtin=$3
1287     shift 3
1288     disable "$name"
1289     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1290 }
1291
1292 check_compile_assert(){
1293     log check_compile_assert "$@"
1294     name=$1
1295     headers=$2
1296     condition=$3
1297     shift 3
1298     disable "$name"
1299     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1300 }
1301
1302 require(){
1303     name="$1"
1304     header="$2"
1305     func="$3"
1306     shift 3
1307     check_lib $header $func "$@" || die "ERROR: $name not found"
1308 }
1309
1310 require2(){
1311     name="$1"
1312     headers="$2"
1313     func="$3"
1314     shift 3
1315     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1316 }
1317
1318 require_cpp(){
1319     name="$1"
1320     headers="$2"
1321     classes="$3"
1322     shift 3
1323     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1324 }
1325
1326 use_pkg_config(){
1327     pkg="$1"
1328     check_pkg_config "$@" || return 1
1329     add_cflags    $(get_safe "${pkg}_cflags")
1330     add_extralibs $(get_safe "${pkg}_libs")
1331 }
1332
1333 require_pkg_config(){
1334     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1335 }
1336
1337 require_libfreetype(){
1338     log require_libfreetype "$@"
1339     pkg="freetype2"
1340     check_cmd $pkg_config --exists --print-errors $pkg \
1341       || die "ERROR: $pkg not found"
1342     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1343     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1344     {
1345         echo "#include <ft2build.h>"
1346         echo "#include FT_FREETYPE_H"
1347         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1348         echo "int main(void) { return 0; }"
1349     } | check_ld "cc" $pkg_cflags $pkg_libs \
1350       && set_safe "${pkg}_cflags" $pkg_cflags \
1351       && set_safe "${pkg}_libs"   $pkg_libs \
1352       || die "ERROR: $pkg not found"
1353     add_cflags    $(get_safe "${pkg}_cflags")
1354     add_extralibs $(get_safe "${pkg}_libs")
1355 }
1356
1357 hostcc_e(){
1358     eval printf '%s\\n' $HOSTCC_E
1359 }
1360
1361 hostcc_o(){
1362     eval printf '%s\\n' $HOSTCC_O
1363 }
1364
1365 check_host_cc(){
1366     log check_host_cc "$@"
1367     cat > $TMPC
1368     log_file $TMPC
1369     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1370 }
1371
1372 check_host_cpp(){
1373     log check_host_cpp "$@"
1374     cat > $TMPC
1375     log_file $TMPC
1376     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1377 }
1378
1379 check_host_cppflags(){
1380     log check_host_cppflags "$@"
1381     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1382 int x;
1383 EOF
1384 }
1385
1386 check_host_cflags(){
1387     log check_host_cflags "$@"
1388     set -- $($host_cflags_filter "$@")
1389     check_host_cc "$@" <<EOF && append host_cflags "$@"
1390 int x;
1391 EOF
1392 }
1393
1394 check_host_cpp_condition(){
1395     log check_host_cpp_condition "$@"
1396     header=$1
1397     condition=$2
1398     shift 2
1399     check_host_cpp "$@" <<EOF
1400 #include <$header>
1401 #if !($condition)
1402 #error "unsatisfied condition: $condition"
1403 #endif
1404 EOF
1405 }
1406
1407 cp_if_changed(){
1408     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1409     mkdir -p "$(dirname $2)"
1410     $cp_f "$1" "$2"
1411 }
1412
1413 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1414 # system-dependent things.
1415
1416 AVCODEC_COMPONENTS="
1417     bsfs
1418     decoders
1419     encoders
1420     hwaccels
1421     parsers
1422 "
1423
1424 AVDEVICE_COMPONENTS="
1425     indevs
1426     outdevs
1427 "
1428 AVFILTER_COMPONENTS="
1429     filters
1430 "
1431 AVFORMAT_COMPONENTS="
1432     demuxers
1433     muxers
1434     protocols
1435 "
1436
1437 AVRESAMPLE_COMPONENTS=""
1438 AVUTIL_COMPONENTS=""
1439
1440 COMPONENT_LIST="
1441     $AVCODEC_COMPONENTS
1442     $AVDEVICE_COMPONENTS
1443     $AVFILTER_COMPONENTS
1444     $AVFORMAT_COMPONENTS
1445     $AVRESAMPLE_COMPONENTS
1446     $AVUTIL_COMPONENTS
1447 "
1448
1449 EXAMPLE_LIST="
1450     avio_dir_cmd_example
1451     avio_reading_example
1452     decoding_encoding_example
1453     demuxing_decoding_example
1454     extract_mvs_example
1455     filter_audio_example
1456     filtering_audio_example
1457     filtering_video_example
1458     http_multiclient_example
1459     metadata_example
1460     muxing_example
1461     qsvdec_example
1462     remuxing_example
1463     resampling_audio_example
1464     scaling_video_example
1465     transcode_aac_example
1466     transcoding_example
1467 "
1468
1469 EXTERNAL_LIBRARY_LIST="
1470     avisynth
1471     bzlib
1472     chromaprint
1473     crystalhd
1474     decklink
1475     frei0r
1476     gcrypt
1477     gmp
1478     gnutls
1479     iconv
1480     jni
1481     ladspa
1482     libass
1483     libbluray
1484     libbs2b
1485     libcaca
1486     libcdio
1487     libcelt
1488     libdc1394
1489     libebur128
1490     libfdk_aac
1491     libflite
1492     libfontconfig
1493     libfreetype
1494     libfribidi
1495     libgme
1496     libgsm
1497     libiec61883
1498     libilbc
1499     libkvazaar
1500     libmodplug
1501     libmp3lame
1502     libnut
1503     libopencore_amrnb
1504     libopencore_amrwb
1505     libopencv
1506     libopenh264
1507     libopenjpeg
1508     libopenmpt
1509     libopus
1510     libpulse
1511     librtmp
1512     librubberband
1513     libschroedinger
1514     libshine
1515     libsmbclient
1516     libsnappy
1517     libsoxr
1518     libspeex
1519     libssh
1520     libtesseract
1521     libtheora
1522     libtwolame
1523     libv4l2
1524     libvidstab
1525     libvo_amrwbenc
1526     libvorbis
1527     libvpx
1528     libwavpack
1529     libwebp
1530     libx264
1531     libx265
1532     libxavs
1533     libxcb
1534     libxcb_shm
1535     libxcb_shape
1536     libxcb_xfixes
1537     libxvid
1538     libzimg
1539     libzmq
1540     libzvbi
1541     lzma
1542     mediacodec
1543     netcdf
1544     openal
1545     opencl
1546     opengl
1547     openssl
1548     schannel
1549     sdl
1550     sdl2
1551     securetransport
1552     videotoolbox
1553     x11grab
1554     xlib
1555     zlib
1556 "
1557
1558 HWACCEL_LIBRARY_LIST="
1559     audiotoolbox
1560     cuda
1561     cuvid
1562     d3d11va
1563     dxva2
1564     libmfx
1565     libnpp
1566     mmal
1567     nvenc
1568     omx
1569     vaapi
1570     vda
1571     vdpau
1572     videotoolbox_hwaccel
1573     xvmc
1574 "
1575
1576 DOCUMENT_LIST="
1577     doc
1578     htmlpages
1579     manpages
1580     podpages
1581     txtpages
1582 "
1583
1584 FEATURE_LIST="
1585     ftrapv
1586     gray
1587     hardcoded_tables
1588     omx_rpi
1589     runtime_cpudetect
1590     safe_bitstream_reader
1591     shared
1592     small
1593     static
1594     swscale_alpha
1595 "
1596
1597 LIBRARY_LIST="
1598     avcodec
1599     avdevice
1600     avfilter
1601     avformat
1602     avresample
1603     avutil
1604     postproc
1605     swresample
1606     swscale
1607 "
1608
1609 LICENSE_LIST="
1610     gpl
1611     nonfree
1612     version3
1613 "
1614
1615 PROGRAM_LIST="
1616     ffplay
1617     ffprobe
1618     ffserver
1619     ffmpeg
1620 "
1621
1622 SUBSYSTEM_LIST="
1623     dct
1624     dwt
1625     error_resilience
1626     faan
1627     fast_unaligned
1628     fft
1629     lsp
1630     lzo
1631     mdct
1632     pixelutils
1633     network
1634     rdft
1635 "
1636
1637 CONFIG_LIST="
1638     $COMPONENT_LIST
1639     $DOCUMENT_LIST
1640     $EXAMPLE_LIST
1641     $EXTERNAL_LIBRARY_LIST
1642     $HWACCEL_LIBRARY_LIST
1643     $FEATURE_LIST
1644     $LICENSE_LIST
1645     $LIBRARY_LIST
1646     $PROGRAM_LIST
1647     $SUBSYSTEM_LIST
1648     fontconfig
1649     incompatible_libav_abi
1650     memalign_hack
1651     memory_poisoning
1652     neon_clobber_test
1653     pic
1654     pod2man
1655     raise_major
1656     thumb
1657     valgrind_backtrace
1658     xmm_clobber_test
1659 "
1660
1661 THREADS_LIST="
1662     pthreads
1663     os2threads
1664     w32threads
1665 "
1666
1667 ATOMICS_LIST="
1668     atomics_gcc
1669     atomics_suncc
1670     atomics_win32
1671 "
1672
1673 ARCH_LIST="
1674     aarch64
1675     alpha
1676     arm
1677     avr32
1678     avr32_ap
1679     avr32_uc
1680     bfin
1681     ia64
1682     m68k
1683     mips
1684     mips64
1685     parisc
1686     ppc
1687     ppc64
1688     s390
1689     sh4
1690     sparc
1691     sparc64
1692     tilegx
1693     tilepro
1694     tomi
1695     x86
1696     x86_32
1697     x86_64
1698 "
1699
1700 ARCH_EXT_LIST_ARM="
1701     armv5te
1702     armv6
1703     armv6t2
1704     armv8
1705     neon
1706     vfp
1707     vfpv3
1708     setend
1709 "
1710
1711 ARCH_EXT_LIST_MIPS="
1712     mipsfpu
1713     mips32r2
1714     mips32r5
1715     mips64r2
1716     mips32r6
1717     mips64r6
1718     mipsdsp
1719     mipsdspr2
1720     msa
1721 "
1722
1723 ARCH_EXT_LIST_LOONGSON="
1724     loongson2
1725     loongson3
1726     mmi
1727 "
1728
1729 ARCH_EXT_LIST_X86_SIMD="
1730     aesni
1731     amd3dnow
1732     amd3dnowext
1733     avx
1734     avx2
1735     fma3
1736     fma4
1737     mmx
1738     mmxext
1739     sse
1740     sse2
1741     sse3
1742     sse4
1743     sse42
1744     ssse3
1745     xop
1746 "
1747
1748 ARCH_EXT_LIST_PPC="
1749     altivec
1750     dcbzl
1751     ldbrx
1752     power8
1753     ppc4xx
1754     vsx
1755 "
1756
1757 ARCH_EXT_LIST_X86="
1758     $ARCH_EXT_LIST_X86_SIMD
1759     cpunop
1760     i686
1761 "
1762
1763 ARCH_EXT_LIST="
1764     $ARCH_EXT_LIST_ARM
1765     $ARCH_EXT_LIST_PPC
1766     $ARCH_EXT_LIST_X86
1767     $ARCH_EXT_LIST_MIPS
1768     $ARCH_EXT_LIST_LOONGSON
1769 "
1770
1771 ARCH_FEATURES="
1772     aligned_stack
1773     fast_64bit
1774     fast_clz
1775     fast_cmov
1776     local_aligned_8
1777     local_aligned_16
1778     local_aligned_32
1779     simd_align_16
1780 "
1781
1782 BUILTIN_LIST="
1783     atomic_cas_ptr
1784     atomic_compare_exchange
1785     machine_rw_barrier
1786     MemoryBarrier
1787     mm_empty
1788     rdtsc
1789     sarestart
1790     sem_timedwait
1791     sync_val_compare_and_swap
1792 "
1793 HAVE_LIST_CMDLINE="
1794     inline_asm
1795     symver
1796     yasm
1797 "
1798
1799 HAVE_LIST_PUB="
1800     bigendian
1801     fast_unaligned
1802     incompatible_libav_abi
1803 "
1804
1805 HEADERS_LIST="
1806     alsa_asoundlib_h
1807     altivec_h
1808     arpa_inet_h
1809     asm_types_h
1810     cdio_paranoia_h
1811     cdio_paranoia_paranoia_h
1812     dispatch_dispatch_h
1813     dev_bktr_ioctl_bt848_h
1814     dev_bktr_ioctl_meteor_h
1815     dev_ic_bt8xx_h
1816     dev_video_bktr_ioctl_bt848_h
1817     dev_video_meteor_ioctl_meteor_h
1818     direct_h
1819     dirent_h
1820     dlfcn_h
1821     d3d11_h
1822     dxva_h
1823     ES2_gl_h
1824     gsm_h
1825     io_h
1826     mach_mach_time_h
1827     machine_ioctl_bt848_h
1828     machine_ioctl_meteor_h
1829     malloc_h
1830     opencv2_core_core_c_h
1831     openjpeg_2_1_openjpeg_h
1832     openjpeg_2_0_openjpeg_h
1833     openjpeg_1_5_openjpeg_h
1834     OpenGL_gl3_h
1835     poll_h
1836     sndio_h
1837     soundcard_h
1838     sys_mman_h
1839     sys_param_h
1840     sys_resource_h
1841     sys_select_h
1842     sys_soundcard_h
1843     sys_time_h
1844     sys_un_h
1845     sys_videoio_h
1846     termios_h
1847     udplite_h
1848     unistd_h
1849     valgrind_valgrind_h
1850     windows_h
1851     winsock2_h
1852 "
1853
1854 INTRINSICS_LIST="
1855     intrinsics_neon
1856 "
1857
1858 COMPLEX_FUNCS="
1859     cabs
1860     cexp
1861 "
1862
1863 MATH_FUNCS="
1864     atanf
1865     atan2f
1866     cbrt
1867     cbrtf
1868     copysign
1869     cosf
1870     erf
1871     exp2
1872     exp2f
1873     expf
1874     hypot
1875     isfinite
1876     isinf
1877     isnan
1878     ldexpf
1879     llrint
1880     llrintf
1881     log2
1882     log2f
1883     log10f
1884     lrint
1885     lrintf
1886     powf
1887     rint
1888     round
1889     roundf
1890     sinf
1891     trunc
1892     truncf
1893 "
1894
1895 SYSTEM_FUNCS="
1896     access
1897     aligned_malloc
1898     arc4random
1899     clock_gettime
1900     closesocket
1901     CommandLineToArgvW
1902     CoTaskMemFree
1903     CryptGenRandom
1904     dlopen
1905     fcntl
1906     flt_lim
1907     fork
1908     getaddrinfo
1909     gethrtime
1910     getopt
1911     GetProcessAffinityMask
1912     GetProcessMemoryInfo
1913     GetProcessTimes
1914     getrusage
1915     GetSystemTimeAsFileTime
1916     gettimeofday
1917     glob
1918     glXGetProcAddress
1919     gmtime_r
1920     inet_aton
1921     isatty
1922     jack_port_get_latency_range
1923     kbhit
1924     LoadLibrary
1925     localtime_r
1926     lstat
1927     lzo1x_999_compress
1928     mach_absolute_time
1929     MapViewOfFile
1930     memalign
1931     mkstemp
1932     mmap
1933     mprotect
1934     nanosleep
1935     PeekNamedPipe
1936     posix_memalign
1937     pthread_cancel
1938     sched_getaffinity
1939     SetConsoleTextAttribute
1940     SetConsoleCtrlHandler
1941     setmode
1942     setrlimit
1943     Sleep
1944     strerror_r
1945     sysconf
1946     sysctl
1947     usleep
1948     UTGetOSTypeFromString
1949     VirtualAlloc
1950     wglGetProcAddress
1951 "
1952
1953 TOOLCHAIN_FEATURES="
1954     as_dn_directive
1955     as_func
1956     as_object_arch
1957     asm_mod_q
1958     attribute_may_alias
1959     attribute_packed
1960     ebp_available
1961     ebx_available
1962     gnu_as
1963     gnu_windres
1964     ibm_asm
1965     inline_asm_direct_symbol_refs
1966     inline_asm_labels
1967     inline_asm_nonlocal_labels
1968     pragma_deprecated
1969     rsync_contimeout
1970     symver_asm_label
1971     symver_gnu_asm
1972     vfp_args
1973     xform_asm
1974     xmm_clobbers
1975 "
1976
1977 TYPES_LIST="
1978     CONDITION_VARIABLE_Ptr
1979     socklen_t
1980     struct_addrinfo
1981     struct_group_source_req
1982     struct_ip_mreq_source
1983     struct_ipv6_mreq
1984     struct_msghdr_msg_flags
1985     struct_pollfd
1986     struct_rusage_ru_maxrss
1987     struct_sctp_event_subscribe
1988     struct_sockaddr_in6
1989     struct_sockaddr_sa_len
1990     struct_sockaddr_storage
1991     struct_stat_st_mtim_tv_nsec
1992     struct_v4l2_frmivalenum_discrete
1993 "
1994
1995 HAVE_LIST="
1996     $ARCH_EXT_LIST
1997     $(add_suffix _external $ARCH_EXT_LIST)
1998     $(add_suffix _inline   $ARCH_EXT_LIST)
1999     $ARCH_FEATURES
2000     $ATOMICS_LIST
2001     $BUILTIN_LIST
2002     $COMPLEX_FUNCS
2003     $HAVE_LIST_CMDLINE
2004     $HAVE_LIST_PUB
2005     $HEADERS_LIST
2006     $INTRINSICS_LIST
2007     $MATH_FUNCS
2008     $SYSTEM_FUNCS
2009     $THREADS_LIST
2010     $TOOLCHAIN_FEATURES
2011     $TYPES_LIST
2012     atomics_native
2013     dos_paths
2014     dxva2_lib
2015     dxva2api_cobj
2016     libc_msvcrt
2017     libdc1394_1
2018     libdc1394_2
2019     makeinfo
2020     makeinfo_html
2021     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2022     perl
2023     pod2man
2024     sdl2
2025     section_data_rel_ro
2026     texi2html
2027     threads
2028     vaapi_drm
2029     vaapi_x11
2030     vdpau_x11
2031     winrt
2032     xlib
2033 "
2034
2035 # options emitted with CONFIG_ prefix but not available on the command line
2036 CONFIG_EXTRA="
2037     aandcttables
2038     ac3dsp
2039     audio_frame_queue
2040     audiodsp
2041     blockdsp
2042     bswapdsp
2043     cabac
2044     dirac_parse
2045     dvprofile
2046     exif
2047     faandct
2048     faanidct
2049     fdctdsp
2050     flacdsp
2051     fmtconvert
2052     frame_thread_encoder
2053     g722dsp
2054     golomb
2055     gplv3
2056     h263dsp
2057     h264chroma
2058     h264dsp
2059     h264pred
2060     h264qpel
2061     hpeldsp
2062     huffman
2063     huffyuvdsp
2064     huffyuvencdsp
2065     idctdsp
2066     iirfilter
2067     imdct15
2068     intrax8
2069     iso_media
2070     ividsp
2071     jpegtables
2072     lgplv3
2073     libx262
2074     llauddsp
2075     llviddsp
2076     lpc
2077     lzf
2078     me_cmp
2079     mpeg_er
2080     mpegaudio
2081     mpegaudiodsp
2082     mpegvideo
2083     mpegvideoenc
2084     mss34dsp
2085     pixblockdsp
2086     qpeldsp
2087     qsv
2088     qsvdec
2089     qsvenc
2090     rangecoder
2091     riffdec
2092     riffenc
2093     rtpdec
2094     rtpenc_chain
2095     rv34dsp
2096     sinewin
2097     snappy
2098     srtp
2099     startcode
2100     texturedsp
2101     texturedspenc
2102     tpeldsp
2103     vaapi_encode
2104     vc1dsp
2105     videodsp
2106     vp3dsp
2107     vp56dsp
2108     vp8dsp
2109     vt_bt2020
2110     wma_freqs
2111     wmv2dsp
2112 "
2113
2114 CMDLINE_SELECT="
2115     $ARCH_EXT_LIST
2116     $CONFIG_LIST
2117     $HAVE_LIST_CMDLINE
2118     $THREADS_LIST
2119     asm
2120     cross_compile
2121     debug
2122     extra_warnings
2123     logging
2124     lto
2125     optimizations
2126     rpath
2127     stripping
2128 "
2129
2130 PATHS_LIST="
2131     bindir
2132     datadir
2133     docdir
2134     incdir
2135     libdir
2136     mandir
2137     pkgconfigdir
2138     prefix
2139     shlibdir
2140     install_name_dir
2141 "
2142
2143 CMDLINE_SET="
2144     $PATHS_LIST
2145     ar
2146     arch
2147     as
2148     assert_level
2149     build_suffix
2150     cc
2151     objcc
2152     cpu
2153     cross_prefix
2154     custom_allocator
2155     cxx
2156     dep_cc
2157     doxygen
2158     env
2159     extra_version
2160     gas
2161     host_cc
2162     host_cflags
2163     host_ld
2164     host_ldflags
2165     host_libs
2166     host_os
2167     install
2168     ld
2169     ln_s
2170     logfile
2171     malloc_prefix
2172     nm
2173     optflags
2174     pkg_config
2175     pkg_config_flags
2176     progs_suffix
2177     random_seed
2178     ranlib
2179     samples
2180     strip
2181     sws_max_filter_size
2182     sysinclude
2183     sysroot
2184     target_exec
2185     target_os
2186     target_path
2187     target_samples
2188     tempprefix
2189     toolchain
2190     valgrind
2191     yasmexe
2192 "
2193
2194 CMDLINE_APPEND="
2195     extra_cflags
2196     extra_cxxflags
2197     extra_objcflags
2198     host_cppflags
2199 "
2200
2201 # code dependency declarations
2202
2203 # architecture extensions
2204
2205 armv5te_deps="arm"
2206 armv6_deps="arm"
2207 armv6t2_deps="arm"
2208 armv8_deps="aarch64"
2209 neon_deps_any="aarch64 arm"
2210 intrinsics_neon_deps="neon"
2211 vfp_deps_any="aarch64 arm"
2212 vfpv3_deps="vfp"
2213 setend_deps="arm"
2214
2215 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2216
2217 loongson2_deps="mips"
2218 loongson3_deps="mips"
2219 mipsfpu_deps="mips"
2220 mipsdsp_deps="mips"
2221 mipsdspr2_deps="mips"
2222 mips32r2_deps="mips"
2223 mips32r5_deps="mips"
2224 mips32r6_deps="mips"
2225 mips64r2_deps="mips"
2226 mips64r6_deps="mips"
2227 msa_deps="mipsfpu"
2228 mmi_deps="mips"
2229
2230 altivec_deps="ppc"
2231 dcbzl_deps="ppc"
2232 ldbrx_deps="ppc"
2233 ppc4xx_deps="ppc"
2234 vsx_deps="altivec"
2235 power8_deps="vsx"
2236
2237 cpunop_deps="i686"
2238 x86_64_select="i686"
2239 x86_64_suggest="fast_cmov"
2240
2241 amd3dnow_deps="mmx"
2242 amd3dnowext_deps="amd3dnow"
2243 i686_deps="x86"
2244 mmx_deps="x86"
2245 mmxext_deps="mmx"
2246 sse_deps="mmxext"
2247 sse2_deps="sse"
2248 sse3_deps="sse2"
2249 ssse3_deps="sse3"
2250 sse4_deps="ssse3"
2251 sse42_deps="sse4"
2252 aesni_deps="sse42"
2253 avx_deps="sse42"
2254 xop_deps="avx"
2255 fma3_deps="avx"
2256 fma4_deps="avx"
2257 avx2_deps="avx"
2258
2259 mmx_external_deps="yasm"
2260 mmx_inline_deps="inline_asm"
2261 mmx_suggest="mmx_external mmx_inline"
2262
2263 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2264     eval dep=\$${ext}_deps
2265     eval ${ext}_external_deps='"${dep}_external"'
2266     eval ${ext}_inline_deps='"${dep}_inline"'
2267     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2268 done
2269
2270 aligned_stack_if_any="aarch64 ppc x86"
2271 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2272 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2273 fast_unaligned_if_any="aarch64 ppc x86"
2274 simd_align_16_if_any="altivec neon sse"
2275
2276 # system capabilities
2277 symver_if_any="symver_asm_label symver_gnu_asm"
2278 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2279
2280 # threading support
2281 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2282 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2283 atomics_win32_if="MemoryBarrier"
2284 atomics_native_if_any="$ATOMICS_LIST"
2285 w32threads_deps="atomics_native"
2286 threads_if_any="$THREADS_LIST"
2287
2288 # subsystems
2289 dct_select="rdft"
2290 dirac_parse_select="golomb"
2291 error_resilience_select="me_cmp"
2292 faandct_deps="faan fdctdsp"
2293 faanidct_deps="faan idctdsp"
2294 h264dsp_select="startcode"
2295 frame_thread_encoder_deps="encoders threads"
2296 intrax8_select="blockdsp idctdsp"
2297 mdct_select="fft"
2298 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2299 mpeg_er_select="error_resilience"
2300 mpegaudio_select="mpegaudiodsp"
2301 mpegaudiodsp_select="dct"
2302 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2303 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2304 vc1dsp_select="h264chroma qpeldsp startcode"
2305 rdft_select="fft"
2306
2307 # decoders / encoders
2308 aac_decoder_select="imdct15 mdct sinewin"
2309 aac_fixed_decoder_select="mdct sinewin"
2310 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2311 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2312 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2313 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2314 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2315 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2316 adpcm_g722_decoder_select="g722dsp"
2317 adpcm_g722_encoder_select="g722dsp"
2318 aic_decoder_select="golomb idctdsp"
2319 alac_encoder_select="lpc"
2320 als_decoder_select="bswapdsp"
2321 amrnb_decoder_select="lsp"
2322 amrwb_decoder_select="lsp"
2323 amv_decoder_select="sp5x_decoder exif"
2324 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2325 ape_decoder_select="bswapdsp llauddsp"
2326 apng_decoder_select="zlib"
2327 apng_encoder_select="huffyuvencdsp zlib"
2328 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2329 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2330 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2331 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2332 atrac1_decoder_select="mdct sinewin"
2333 atrac3_decoder_select="mdct"
2334 atrac3p_decoder_select="mdct sinewin"
2335 avrn_decoder_select="exif jpegtables"
2336 bink_decoder_select="blockdsp hpeldsp"
2337 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2338 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2339 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2340 cllc_decoder_select="bswapdsp"
2341 comfortnoise_encoder_select="lpc"
2342 cook_decoder_select="audiodsp mdct sinewin"
2343 cscd_decoder_select="lzo"
2344 cscd_decoder_suggest="zlib"
2345 dca_decoder_select="mdct"
2346 dds_decoder_select="texturedsp"
2347 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2348 dnxhd_decoder_select="blockdsp idctdsp"
2349 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2350 dvvideo_decoder_select="dvprofile idctdsp"
2351 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2352 dxa_decoder_select="zlib"
2353 dxv_decoder_select="lzf texturedsp"
2354 eac3_decoder_select="ac3_decoder"
2355 eac3_encoder_select="ac3_encoder"
2356 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2357 eatgq_decoder_select="aandcttables"
2358 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2359 exr_decoder_select="zlib"
2360 ffv1_decoder_select="golomb rangecoder"
2361 ffv1_encoder_select="rangecoder"
2362 ffvhuff_decoder_select="huffyuv_decoder"
2363 ffvhuff_encoder_select="huffyuv_encoder"
2364 fic_decoder_select="golomb"
2365 flac_decoder_select="flacdsp golomb"
2366 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2367 flashsv2_decoder_select="zlib"
2368 flashsv2_encoder_select="zlib"
2369 flashsv_decoder_select="zlib"
2370 flashsv_encoder_select="zlib"
2371 flv_decoder_select="h263_decoder"
2372 flv_encoder_select="h263_encoder"
2373 fourxm_decoder_select="blockdsp bswapdsp"
2374 fraps_decoder_select="bswapdsp huffman"
2375 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2376 g729_decoder_select="audiodsp"
2377 h261_decoder_select="mpegvideo"
2378 h261_encoder_select="aandcttables mpegvideoenc"
2379 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2380 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2381 h263i_decoder_select="h263_decoder"
2382 h263p_decoder_select="h263_decoder"
2383 h263p_encoder_select="h263_encoder"
2384 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2385 h264_decoder_suggest="error_resilience"
2386 hap_decoder_select="snappy texturedsp"
2387 hap_encoder_deps="libsnappy"
2388 hap_encoder_select="texturedspenc"
2389 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2390 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2391 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2392 iac_decoder_select="imc_decoder"
2393 imc_decoder_select="bswapdsp fft mdct sinewin"
2394 indeo3_decoder_select="hpeldsp"
2395 indeo4_decoder_select="ividsp"
2396 indeo5_decoder_select="ividsp"
2397 interplay_video_decoder_select="hpeldsp"
2398 jpegls_decoder_select="golomb mjpeg_decoder"
2399 jpegls_encoder_select="golomb"
2400 jv_decoder_select="blockdsp"
2401 lagarith_decoder_select="huffyuvdsp"
2402 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2403 loco_decoder_select="golomb"
2404 magicyuv_decoder_select="huffyuvdsp"
2405 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2406 metasound_decoder_select="lsp mdct sinewin"
2407 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2408 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2409 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2410 mjpegb_decoder_select="mjpeg_decoder"
2411 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2412 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2413 mlp_decoder_select="mlp_parser"
2414 motionpixels_decoder_select="bswapdsp"
2415 mp1_decoder_select="mpegaudio"
2416 mp1float_decoder_select="mpegaudio"
2417 mp2_decoder_select="mpegaudio"
2418 mp2float_decoder_select="mpegaudio"
2419 mp3_decoder_select="mpegaudio"
2420 mp3adu_decoder_select="mpegaudio"
2421 mp3adufloat_decoder_select="mpegaudio"
2422 mp3float_decoder_select="mpegaudio"
2423 mp3on4_decoder_select="mpegaudio"
2424 mp3on4float_decoder_select="mpegaudio"
2425 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2426 mpc8_decoder_select="mpegaudiodsp"
2427 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2428 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2429 mpegvideo_decoder_select="mpegvideo"
2430 mpeg1video_decoder_select="mpegvideo"
2431 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2432 mpeg2video_decoder_select="mpegvideo"
2433 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2434 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2435 mpeg4_encoder_select="h263_encoder"
2436 msa1_decoder_select="mss34dsp"
2437 msmpeg4v1_decoder_select="h263_decoder"
2438 msmpeg4v2_decoder_select="h263_decoder"
2439 msmpeg4v2_encoder_select="h263_encoder"
2440 msmpeg4v3_decoder_select="h263_decoder"
2441 msmpeg4v3_encoder_select="h263_encoder"
2442 mss2_decoder_select="vc1_decoder mpegvideo"
2443 mts2_decoder_select="mss34dsp"
2444 mxpeg_decoder_select="mjpeg_decoder"
2445 nellymoser_decoder_select="mdct sinewin"
2446 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2447 nuv_decoder_select="idctdsp lzo"
2448 on2avc_decoder_select="mdct"
2449 opus_decoder_deps="swresample"
2450 opus_decoder_select="imdct15"
2451 png_decoder_select="zlib"
2452 png_encoder_select="huffyuvencdsp zlib"
2453 prores_decoder_select="blockdsp idctdsp"
2454 prores_encoder_select="fdctdsp"
2455 qcelp_decoder_select="lsp"
2456 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2457 ra_144_decoder_select="audiodsp"
2458 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2459 ralf_decoder_select="golomb"
2460 rawvideo_decoder_select="bswapdsp"
2461 rscc_decoder_select="zlib"
2462 rtjpeg_decoder_select="me_cmp"
2463 rv10_decoder_select="h263_decoder"
2464 rv10_encoder_select="h263_encoder"
2465 rv20_decoder_select="h263_decoder"
2466 rv20_encoder_select="h263_encoder"
2467 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2468 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2469 screenpresso_decoder_select="zlib"
2470 shorten_decoder_select="golomb"
2471 sipr_decoder_select="lsp"
2472 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2473 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2474 sonic_decoder_select="golomb rangecoder"
2475 sonic_encoder_select="golomb rangecoder"
2476 sonic_ls_encoder_select="golomb rangecoder"
2477 sp5x_decoder_select="mjpeg_decoder"
2478 svq1_decoder_select="hpeldsp"
2479 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2480 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2481 svq3_decoder_suggest="zlib"
2482 tak_decoder_select="audiodsp"
2483 tdsc_decoder_select="zlib mjpeg_decoder"
2484 theora_decoder_select="vp3_decoder"
2485 thp_decoder_select="mjpeg_decoder"
2486 tiff_decoder_suggest="zlib lzma"
2487 tiff_encoder_suggest="zlib"
2488 truehd_decoder_select="mlp_parser"
2489 truemotion2_decoder_select="bswapdsp"
2490 truespeech_decoder_select="bswapdsp"
2491 tscc_decoder_select="zlib"
2492 twinvq_decoder_select="mdct lsp sinewin"
2493 txd_decoder_select="texturedsp"
2494 utvideo_decoder_select="bswapdsp"
2495 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2496 vble_decoder_select="huffyuvdsp"
2497 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2498 vc1_qsv_decoder_deps="libmfx"
2499 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2500 vc1image_decoder_select="vc1_decoder"
2501 vorbis_decoder_select="mdct"
2502 vorbis_encoder_select="mdct"
2503 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2504 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2505 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2506 vp6a_decoder_select="vp6_decoder"
2507 vp6f_decoder_select="vp6_decoder"
2508 vp7_decoder_select="h264pred videodsp vp8dsp"
2509 vp8_decoder_select="h264pred videodsp vp8dsp"
2510 vp9_decoder_select="videodsp vp9_parser"
2511 webp_decoder_select="vp8_decoder exif"
2512 wmalossless_decoder_select="llauddsp"
2513 wmapro_decoder_select="mdct sinewin wma_freqs"
2514 wmav1_decoder_select="mdct sinewin wma_freqs"
2515 wmav1_encoder_select="mdct sinewin wma_freqs"
2516 wmav2_decoder_select="mdct sinewin wma_freqs"
2517 wmav2_encoder_select="mdct sinewin wma_freqs"
2518 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2519 wmv1_decoder_select="h263_decoder"
2520 wmv1_encoder_select="h263_encoder"
2521 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2522 wmv2_encoder_select="h263_encoder wmv2dsp"
2523 wmv3_decoder_select="vc1_decoder"
2524 wmv3image_decoder_select="wmv3_decoder"
2525 xma1_decoder_select="wmapro_decoder"
2526 xma2_decoder_select="wmapro_decoder"
2527 zerocodec_decoder_select="zlib"
2528 zlib_decoder_select="zlib"
2529 zlib_encoder_select="zlib"
2530 zmbv_decoder_select="zlib"
2531 zmbv_encoder_select="zlib"
2532
2533 # platform codecs
2534 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2535 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2536
2537 # hardware accelerators
2538 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2539 cuvid_deps="cuda"
2540 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2541 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2542 vaapi_deps="va_va_h"
2543 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2544 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2545 vda_deps="vda_framework pthreads"
2546 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2547 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2548 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2549 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2550 xvmc_deps="X11_extensions_XvMClib_h"
2551
2552 h263_cuvid_hwaccel_deps="cuda cuvid"
2553 h263_vaapi_hwaccel_deps="vaapi"
2554 h263_vaapi_hwaccel_select="h263_decoder"
2555 h263_videotoolbox_hwaccel_deps="videotoolbox"
2556 h263_videotoolbox_hwaccel_select="h263_decoder"
2557 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2558 h264_cuvid_hwaccel_deps="cuda cuvid"
2559 h264_d3d11va_hwaccel_deps="d3d11va"
2560 h264_d3d11va_hwaccel_select="h264_decoder"
2561 h264_dxva2_hwaccel_deps="dxva2"
2562 h264_dxva2_hwaccel_select="h264_decoder"
2563 h264_mediacodec_decoder_deps="mediacodec"
2564 h264_mediacodec_hwaccel_deps="mediacodec"
2565 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2566 h264_mmal_decoder_deps="mmal"
2567 h264_mmal_decoder_select="mmal"
2568 h264_mmal_hwaccel_deps="mmal"
2569 h264_omx_encoder_deps="omx"
2570 h264_qsv_hwaccel_deps="libmfx"
2571 h264_vaapi_hwaccel_deps="vaapi"
2572 h264_vaapi_hwaccel_select="h264_decoder"
2573 h264_vda_decoder_deps="vda"
2574 h264_vda_decoder_select="h264_decoder"
2575 h264_vda_hwaccel_deps="vda"
2576 h264_vda_hwaccel_select="h264_decoder"
2577 h264_vda_old_hwaccel_deps="vda"
2578 h264_vda_old_hwaccel_select="h264_decoder"
2579 h264_vdpau_decoder_deps="vdpau"
2580 h264_vdpau_decoder_select="h264_decoder"
2581 h264_vdpau_hwaccel_deps="vdpau"
2582 h264_vdpau_hwaccel_select="h264_decoder"
2583 h264_videotoolbox_hwaccel_deps="videotoolbox"
2584 h264_videotoolbox_hwaccel_select="h264_decoder"
2585 hevc_cuvid_hwaccel_deps="cuda cuvid"
2586 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2587 hevc_d3d11va_hwaccel_select="hevc_decoder"
2588 hevc_mediacodec_decoder_deps="mediacodec"
2589 hevc_mediacodec_hwaccel_deps="mediacodec"
2590 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2591 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2592 hevc_dxva2_hwaccel_select="hevc_decoder"
2593 hevc_qsv_hwaccel_deps="libmfx"
2594 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2595 hevc_vaapi_hwaccel_select="hevc_decoder"
2596 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2597 hevc_vdpau_hwaccel_select="hevc_decoder"
2598 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2599 mpeg_vdpau_decoder_deps="vdpau"
2600 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2601 mpeg_xvmc_hwaccel_deps="xvmc"
2602 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2603 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2604 mpeg1_vdpau_decoder_deps="vdpau"
2605 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2606 mpeg1_vdpau_hwaccel_deps="vdpau"
2607 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2608 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2609 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2610 mpeg1_xvmc_hwaccel_deps="xvmc"
2611 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2612 mpeg2_crystalhd_decoder_select="crystalhd"
2613 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2614 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2615 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2616 mpeg2_dxva2_hwaccel_deps="dxva2"
2617 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2618 mpeg2_mmal_decoder_deps="mmal"
2619 mpeg2_mmal_decoder_select="mmal"
2620 mpeg2_mmal_hwaccel_deps="mmal"
2621 mpeg2_qsv_hwaccel_deps="libmfx"
2622 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2623 mpeg2_vaapi_hwaccel_deps="vaapi"
2624 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2625 mpeg2_vdpau_hwaccel_deps="vdpau"
2626 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2627 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2628 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2629 mpeg2_xvmc_hwaccel_deps="xvmc"
2630 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2631 mpeg4_crystalhd_decoder_select="crystalhd"
2632 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2633 mpeg4_mmal_decoder_deps="mmal"
2634 mpeg4_mmal_decoder_select="mmal"
2635 mpeg4_mmal_hwaccel_deps="mmal"
2636 mpeg4_omx_encoder_deps="omx"
2637 mpeg4_vaapi_hwaccel_deps="vaapi"
2638 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2639 mpeg4_vdpau_decoder_deps="vdpau"
2640 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2641 mpeg4_vdpau_hwaccel_deps="vdpau"
2642 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2643 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2644 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2645 msmpeg4_crystalhd_decoder_select="crystalhd"
2646 vc1_crystalhd_decoder_select="crystalhd"
2647 vc1_cuvid_hwaccel_deps="cuda cuvid"
2648 vc1_d3d11va_hwaccel_deps="d3d11va"
2649 vc1_d3d11va_hwaccel_select="vc1_decoder"
2650 vc1_dxva2_hwaccel_deps="dxva2"
2651 vc1_dxva2_hwaccel_select="vc1_decoder"
2652 vc1_mmal_decoder_deps="mmal"
2653 vc1_mmal_decoder_select="mmal"
2654 vc1_mmal_hwaccel_deps="mmal"
2655 vc1_qsv_hwaccel_deps="libmfx"
2656 vc1_qsv_hwaccel_select="qsvdec_vc1"
2657 vc1_vaapi_hwaccel_deps="vaapi"
2658 vc1_vaapi_hwaccel_select="vc1_decoder"
2659 vc1_vdpau_decoder_deps="vdpau"
2660 vc1_vdpau_decoder_select="vc1_decoder"
2661 vc1_vdpau_hwaccel_deps="vdpau"
2662 vc1_vdpau_hwaccel_select="vc1_decoder"
2663 vp8_cuvid_hwaccel_deps="cuda cuvid"
2664 vp9_cuvid_hwaccel_deps="cuda cuvid"
2665 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2666 vp9_d3d11va_hwaccel_select="vp9_decoder"
2667 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2668 vp9_dxva2_hwaccel_select="vp9_decoder"
2669 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2670 vp9_vaapi_hwaccel_select="vp9_decoder"
2671 wmv3_crystalhd_decoder_select="crystalhd"
2672 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2673 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2674 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2675 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2676 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2677
2678 # hardware-accelerated codecs
2679 omx_deps="dlopen pthreads"
2680 omx_extralibs='$ldl'
2681 qsvdec_select="qsv"
2682 qsvenc_select="qsv"
2683 vaapi_encode_deps="vaapi"
2684
2685 hwupload_cuda_filter_deps="cuda"
2686 scale_npp_filter_deps="cuda libnpp"
2687
2688 nvenc_deps_any="dlopen LoadLibrary"
2689 nvenc_encoder_deps="nvenc"
2690 h263_cuvid_decoder_deps="cuda cuvid"
2691 h263_cuvid_decoder_select="h263_cuvid_hwaccel"
2692 h264_cuvid_decoder_deps="cuda cuvid"
2693 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2694 h264_nvenc_encoder_deps="nvenc"
2695 h264_qsv_decoder_deps="libmfx"
2696 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2697 h264_qsv_encoder_deps="libmfx"
2698 h264_qsv_encoder_select="qsvenc"
2699 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2700 h264_vaapi_encoder_select="vaapi_encode golomb"
2701
2702 hevc_cuvid_decoder_deps="cuda cuvid"
2703 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2704 hevc_nvenc_encoder_deps="nvenc"
2705 hevc_qsv_decoder_deps="libmfx"
2706 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2707 hevc_qsv_encoder_deps="libmfx"
2708 hevc_qsv_encoder_select="qsvenc"
2709 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2710 hevc_vaapi_encoder_select="vaapi_encode golomb"
2711 mjpeg_cuvid_decoder_deps="cuda cuvid"
2712 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2713 mpeg1_cuvid_decoder_deps="cuda cuvid"
2714 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2715 mpeg2_cuvid_decoder_deps="cuda cuvid"
2716 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2717 mpeg2_qsv_decoder_deps="libmfx"
2718 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2719 mpeg2_qsv_encoder_deps="libmfx"
2720 mpeg2_qsv_encoder_select="qsvenc"
2721 mpeg4_cuvid_decoder_deps="cuda cuvid"
2722 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2723 nvenc_h264_encoder_deps="nvenc"
2724 nvenc_hevc_encoder_deps="nvenc"
2725
2726 vc1_cuvid_decoder_deps="cuda cuvid"
2727 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2728 vp8_cuvid_decoder_deps="cuda cuvid"
2729 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2730 vp9_cuvid_decoder_deps="cuda cuvid"
2731 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2732
2733 # parsers
2734 h264_parser_select="golomb h264dsp"
2735 hevc_parser_select="golomb"
2736 mpegvideo_parser_select="mpegvideo"
2737 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2738 vc1_parser_select="vc1dsp"
2739
2740 # bitstream_filters
2741 mjpeg2jpeg_bsf_select="jpegtables"
2742
2743 # external libraries
2744 aac_at_decoder_deps="audiotoolbox"
2745 ac3_at_decoder_deps="audiotoolbox"
2746 ac3_at_decoder_select="ac3_parser"
2747 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2748 alac_at_decoder_deps="audiotoolbox"
2749 amr_nb_at_decoder_deps="audiotoolbox"
2750 eac3_at_decoder_deps="audiotoolbox"
2751 eac3_at_decoder_select="ac3_parser"
2752 gsm_ms_at_decoder_deps="audiotoolbox"
2753 ilbc_at_decoder_deps="audiotoolbox"
2754 mp1_at_decoder_deps="audiotoolbox"
2755 mp2_at_decoder_deps="audiotoolbox"
2756 mp3_at_decoder_deps="audiotoolbox"
2757 pcm_alaw_at_decoder_deps="audiotoolbox"
2758 pcm_mulaw_at_decoder_deps="audiotoolbox"
2759 qdmc_at_decoder_deps="audiotoolbox"
2760 qdm2_at_decoder_deps="audiotoolbox"
2761 aac_at_encoder_deps="audiotoolbox"
2762 aac_at_encoder_select="audio_frame_queue"
2763 alac_at_encoder_deps="audiotoolbox"
2764 alac_at_encoder_select="audio_frame_queue"
2765 ilbc_at_encoder_deps="audiotoolbox"
2766 ilbc_at_encoder_select="audio_frame_queue"
2767 pcm_alaw_at_encoder_deps="audiotoolbox"
2768 pcm_alaw_at_encoder_select="audio_frame_queue"
2769 pcm_mulaw_at_encoder_deps="audiotoolbox"
2770 pcm_mulaw_at_encoder_select="audio_frame_queue"
2771 chromaprint_muxer_deps="chromaprint"
2772 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2773 libcelt_decoder_deps="libcelt"
2774 libfdk_aac_decoder_deps="libfdk_aac"
2775 libfdk_aac_encoder_deps="libfdk_aac"
2776 libfdk_aac_encoder_select="audio_frame_queue"
2777 libgme_demuxer_deps="libgme"
2778 libgsm_decoder_deps="libgsm"
2779 libgsm_encoder_deps="libgsm"
2780 libgsm_ms_decoder_deps="libgsm"
2781 libgsm_ms_encoder_deps="libgsm"
2782 libilbc_decoder_deps="libilbc"
2783 libilbc_encoder_deps="libilbc"
2784 libkvazaar_encoder_deps="libkvazaar"
2785 libmodplug_demuxer_deps="libmodplug"
2786 libmp3lame_encoder_deps="libmp3lame"
2787 libmp3lame_encoder_select="audio_frame_queue"
2788 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2789 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2790 libopencore_amrnb_encoder_select="audio_frame_queue"
2791 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2792 libopenh264_decoder_deps="libopenh264"
2793 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2794 libopenh264_encoder_deps="libopenh264"
2795 libopenjpeg_decoder_deps="libopenjpeg"
2796 libopenjpeg_encoder_deps="libopenjpeg"
2797 libopenmpt_demuxer_deps="libopenmpt"
2798 libopus_decoder_deps="libopus"
2799 libopus_encoder_deps="libopus"
2800 libopus_encoder_select="audio_frame_queue"
2801 libschroedinger_decoder_deps="libschroedinger"
2802 libschroedinger_encoder_deps="libschroedinger"
2803 libshine_encoder_deps="libshine"
2804 libshine_encoder_select="audio_frame_queue"
2805 libspeex_decoder_deps="libspeex"
2806 libspeex_encoder_deps="libspeex"
2807 libspeex_encoder_select="audio_frame_queue"
2808 libtheora_encoder_deps="libtheora"
2809 libtwolame_encoder_deps="libtwolame"
2810 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2811 libvorbis_decoder_deps="libvorbis"
2812 libvorbis_encoder_deps="libvorbis"
2813 libvorbis_encoder_select="audio_frame_queue"
2814 libvpx_vp8_decoder_deps="libvpx"
2815 libvpx_vp8_encoder_deps="libvpx"
2816 libvpx_vp9_decoder_deps="libvpx"
2817 libvpx_vp9_encoder_deps="libvpx"
2818 libwavpack_encoder_deps="libwavpack"
2819 libwebp_encoder_deps="libwebp"
2820 libwebp_anim_encoder_deps="libwebp"
2821 libx262_encoder_deps="libx262"
2822 libx264_encoder_deps="libx264"
2823 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2824 libx264rgb_encoder_select="libx264_encoder"
2825 libx265_encoder_deps="libx265"
2826 libxavs_encoder_deps="libxavs"
2827 libxvid_encoder_deps="libxvid"
2828 libzvbi_teletext_decoder_deps="libzvbi"
2829 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2830 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2831 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2832 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2833 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2834
2835 # demuxers / muxers
2836 ac3_demuxer_select="ac3_parser"
2837 asf_demuxer_select="riffdec"
2838 asf_o_demuxer_select="riffdec"
2839 asf_muxer_select="riffenc"
2840 asf_stream_muxer_select="asf_muxer"
2841 avi_demuxer_select="iso_media riffdec exif"
2842 avi_muxer_select="riffenc"
2843 avisynth_demuxer_deps="avisynth"
2844 avisynth_demuxer_select="riffdec"
2845 caf_demuxer_select="iso_media riffdec"
2846 dash_muxer_select="mp4_muxer"
2847 dirac_demuxer_select="dirac_parser"
2848 dts_demuxer_select="dca_parser"
2849 dtshd_demuxer_select="dca_parser"
2850 dv_demuxer_select="dvprofile"
2851 dv_muxer_select="dvprofile"
2852 dxa_demuxer_select="riffdec"
2853 eac3_demuxer_select="ac3_parser"
2854 f4v_muxer_select="mov_muxer"
2855 fifo_muxer_deps="threads"
2856 flac_demuxer_select="flac_parser"
2857 hds_muxer_select="flv_muxer"
2858 hls_muxer_select="mpegts_muxer"
2859 image2_alias_pix_demuxer_select="image2_demuxer"
2860 image2_brender_pix_demuxer_select="image2_demuxer"
2861 ipod_muxer_select="mov_muxer"
2862 ismv_muxer_select="mov_muxer"
2863 libnut_demuxer_deps="libnut"
2864 libnut_muxer_deps="libnut"
2865 matroska_audio_muxer_select="matroska_muxer"
2866 matroska_demuxer_select="iso_media riffdec"
2867 matroska_demuxer_suggest="bzlib lzo zlib"
2868 matroska_muxer_select="iso_media riffenc"
2869 mmf_muxer_select="riffenc"
2870 mov_demuxer_select="iso_media riffdec"
2871 mov_demuxer_suggest="zlib"
2872 mov_muxer_select="iso_media riffenc rtpenc_chain"
2873 mp3_demuxer_select="mpegaudio_parser"
2874 mp4_muxer_select="mov_muxer"
2875 mpegts_demuxer_select="iso_media"
2876 mpegts_muxer_select="adts_muxer latm_muxer"
2877 mpegtsraw_demuxer_select="mpegts_demuxer"
2878 mxf_d10_muxer_select="mxf_muxer"
2879 mxf_opatom_muxer_select="mxf_muxer"
2880 nut_muxer_select="riffenc"
2881 nuv_demuxer_select="riffdec"
2882 oga_muxer_select="ogg_muxer"
2883 ogg_demuxer_select="dirac_parse"
2884 ogv_muxer_select="ogg_muxer"
2885 opus_muxer_select="ogg_muxer"
2886 psp_muxer_select="mov_muxer"
2887 rtp_demuxer_select="sdp_demuxer"
2888 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2889 rtsp_demuxer_select="http_protocol rtpdec"
2890 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2891 sap_demuxer_select="sdp_demuxer"
2892 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2893 sdp_demuxer_select="rtpdec"
2894 smoothstreaming_muxer_select="ismv_muxer"
2895 spdif_muxer_select="aac_parser"
2896 spx_muxer_select="ogg_muxer"
2897 swf_demuxer_suggest="zlib"
2898 tak_demuxer_select="tak_parser"
2899 tg2_muxer_select="mov_muxer"
2900 tgp_muxer_select="mov_muxer"
2901 vobsub_demuxer_select="mpegps_demuxer"
2902 w64_demuxer_select="wav_demuxer"
2903 w64_muxer_select="wav_muxer"
2904 wav_demuxer_select="riffdec"
2905 wav_muxer_select="riffenc"
2906 webm_muxer_select="iso_media riffenc"
2907 webm_dash_manifest_demuxer_select="matroska_demuxer"
2908 wtv_demuxer_select="mpegts_demuxer riffdec"
2909 wtv_muxer_select="mpegts_muxer riffenc"
2910 xmv_demuxer_select="riffdec"
2911 xwma_demuxer_select="riffdec"
2912
2913 # indevs / outdevs
2914 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2915 alsa_outdev_deps="alsa_asoundlib_h"
2916 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2917 avfoundation_indev_select="avfoundation"
2918 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2919 caca_outdev_deps="libcaca"
2920 decklink_indev_deps="decklink pthreads"
2921 decklink_indev_extralibs="-lstdc++"
2922 decklink_outdev_deps="decklink pthreads"
2923 decklink_outdev_extralibs="-lstdc++"
2924 dshow_indev_deps="IBaseFilter"
2925 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2926 dv1394_indev_deps="dv1394"
2927 dv1394_indev_select="dv_demuxer"
2928 fbdev_indev_deps="linux_fb_h"
2929 fbdev_outdev_deps="linux_fb_h"
2930 gdigrab_indev_deps="CreateDIBSection"
2931 gdigrab_indev_extralibs="-lgdi32"
2932 gdigrab_indev_select="bmp_decoder"
2933 iec61883_indev_deps="libiec61883"
2934 jack_indev_deps="jack_jack_h"
2935 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2936 lavfi_indev_deps="avfilter"
2937 libcdio_indev_deps="libcdio"
2938 libdc1394_indev_deps="libdc1394"
2939 libv4l2_indev_deps="libv4l2"
2940 openal_indev_deps="openal"
2941 opengl_outdev_deps="opengl"
2942 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2943 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2944 pulse_indev_deps="libpulse"
2945 pulse_outdev_deps="libpulse"
2946 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2947 qtkit_indev_select="qtkit"
2948 sdl2_outdev_deps="sdl2"
2949 sndio_indev_deps="sndio_h"
2950 sndio_outdev_deps="sndio_h"
2951 v4l_indev_deps="linux_videodev_h"
2952 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2953 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2954 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2955 vfwcap_indev_extralibs="-lavicap32"
2956 x11grab_indev_deps="x11grab"
2957 x11grab_xcb_indev_deps="libxcb"
2958 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2959 xv_outdev_extralibs="-lXv -lX11 -lXext"
2960
2961 # protocols
2962 async_protocol_deps="threads"
2963 bluray_protocol_deps="libbluray"
2964 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2965 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2966 ffrtmpcrypt_protocol_select="tcp_protocol"
2967 ffrtmphttp_protocol_deps="!librtmp_protocol"
2968 ffrtmphttp_protocol_select="http_protocol"
2969 ftp_protocol_select="tcp_protocol"
2970 gopher_protocol_select="network"
2971 http_protocol_select="tcp_protocol"
2972 httpproxy_protocol_select="tcp_protocol"
2973 https_protocol_select="tls_protocol"
2974 icecast_protocol_select="http_protocol"
2975 librtmp_protocol_deps="librtmp"
2976 librtmpe_protocol_deps="librtmp"
2977 librtmps_protocol_deps="librtmp"
2978 librtmpt_protocol_deps="librtmp"
2979 librtmpte_protocol_deps="librtmp"
2980 libsmbclient_protocol_deps="libsmbclient gplv3"
2981 libssh_protocol_deps="libssh"
2982 mmsh_protocol_select="http_protocol"
2983 mmst_protocol_select="network"
2984 rtmp_protocol_deps="!librtmp_protocol"
2985 rtmp_protocol_select="tcp_protocol"
2986 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2987 rtmps_protocol_deps="!librtmp_protocol"
2988 rtmps_protocol_select="tls_protocol"
2989 rtmpt_protocol_select="ffrtmphttp_protocol"
2990 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2991 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2992 rtp_protocol_select="udp_protocol"
2993 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2994 sctp_protocol_select="network"
2995 srtp_protocol_select="rtp_protocol srtp"
2996 tcp_protocol_select="network"
2997 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2998 tls_gnutls_protocol_select="tcp_protocol"
2999 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3000 tls_openssl_protocol_select="tcp_protocol"
3001 tls_schannel_protocol_deps="schannel"
3002 tls_schannel_protocol_select="tcp_protocol"
3003 tls_securetransport_protocol_deps="securetransport"
3004 tls_securetransport_protocol_select="tcp_protocol"
3005 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3006 udp_protocol_select="network"
3007 udplite_protocol_select="network"
3008 unix_protocol_deps="sys_un_h"
3009 unix_protocol_select="network"
3010
3011 # filters
3012 afftfilt_filter_deps="avcodec"
3013 afftfilt_filter_select="fft"
3014 amovie_filter_deps="avcodec avformat"
3015 aresample_filter_deps="swresample"
3016 ass_filter_deps="libass"
3017 asyncts_filter_deps="avresample"
3018 atempo_filter_deps="avcodec"
3019 atempo_filter_select="rdft"
3020 azmq_filter_deps="libzmq"
3021 blackframe_filter_deps="gpl"
3022 boxblur_filter_deps="gpl"
3023 bs2b_filter_deps="libbs2b"
3024 colormatrix_filter_deps="gpl"
3025 cover_rect_filter_deps="avcodec avformat gpl"
3026 cropdetect_filter_deps="gpl"
3027 delogo_filter_deps="gpl"
3028 deshake_filter_select="pixelutils"
3029 drawtext_filter_deps="libfreetype"
3030 ebur128_filter_deps="gpl"
3031 eq_filter_deps="gpl"
3032 fftfilt_filter_deps="avcodec"
3033 fftfilt_filter_select="rdft"
3034 find_rect_filter_deps="avcodec avformat gpl"
3035 firequalizer_filter_deps="avcodec"
3036 firequalizer_filter_select="rdft"
3037 flite_filter_deps="libflite"
3038 framerate_filter_select="pixelutils"
3039 frei0r_filter_deps="frei0r dlopen"
3040 frei0r_src_filter_deps="frei0r dlopen"
3041 fspp_filter_deps="gpl"
3042 geq_filter_deps="gpl"
3043 histeq_filter_deps="gpl"
3044 hqdn3d_filter_deps="gpl"
3045 interlace_filter_deps="gpl"
3046 kerndeint_filter_deps="gpl"
3047 ladspa_filter_deps="ladspa dlopen"
3048 loudnorm_filter_deps="libebur128"
3049 mcdeint_filter_deps="avcodec gpl"
3050 movie_filter_deps="avcodec avformat"
3051 mpdecimate_filter_deps="gpl"
3052 mpdecimate_filter_select="pixelutils"
3053 mptestsrc_filter_deps="gpl"
3054 negate_filter_deps="lut_filter"
3055 nnedi_filter_deps="gpl"
3056 ocr_filter_deps="libtesseract"
3057 ocv_filter_deps="libopencv"
3058 owdenoise_filter_deps="gpl"
3059 pan_filter_deps="swresample"
3060 perspective_filter_deps="gpl"
3061 phase_filter_deps="gpl"
3062 pp7_filter_deps="gpl"
3063 pp_filter_deps="gpl postproc"
3064 pullup_filter_deps="gpl"
3065 removelogo_filter_deps="avcodec avformat swscale"
3066 repeatfields_filter_deps="gpl"
3067 resample_filter_deps="avresample"
3068 rubberband_filter_deps="librubberband"
3069 sab_filter_deps="gpl swscale"
3070 scale2ref_filter_deps="swscale"
3071 scale_filter_deps="swscale"
3072 select_filter_select="pixelutils"
3073 showcqt_filter_deps="avcodec avformat swscale"
3074 showcqt_filter_select="fft"
3075 showfreqs_filter_deps="avcodec"
3076 showfreqs_filter_select="fft"
3077 showspectrum_filter_deps="avcodec"
3078 showspectrum_filter_select="fft"
3079 showspectrumpic_filter_deps="avcodec"
3080 showspectrumpic_filter_select="fft"
3081 smartblur_filter_deps="gpl swscale"
3082 sofalizer_filter_deps="netcdf avcodec"
3083 sofalizer_filter_select="fft"
3084 spectrumsynth_filter_deps="avcodec"
3085 spectrumsynth_filter_select="fft"
3086 spp_filter_deps="gpl avcodec"
3087 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3088 stereo3d_filter_deps="gpl"
3089 subtitles_filter_deps="avformat avcodec libass"
3090 super2xsai_filter_deps="gpl"
3091 pixfmts_super2xsai_test_deps="super2xsai_filter"
3092 tinterlace_filter_deps="gpl"
3093 tinterlace_merge_test_deps="tinterlace_filter"
3094 tinterlace_pad_test_deps="tinterlace_filter"
3095 uspp_filter_deps="gpl avcodec"
3096 vaguedenoiser_filter_deps="gpl"
3097 vidstabdetect_filter_deps="libvidstab"
3098 vidstabtransform_filter_deps="libvidstab"
3099 zmq_filter_deps="libzmq"
3100 zoompan_filter_deps="swscale"
3101 zscale_filter_deps="libzimg"
3102 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3103
3104 # examples
3105 avio_dir_cmd_deps="avformat avutil"
3106 avio_reading_deps="avformat avcodec avutil"
3107 decoding_encoding_example_deps="avcodec avformat avutil"
3108 demuxing_decoding_example_deps="avcodec avformat avutil"
3109 extract_mvs_example_deps="avcodec avformat avutil"
3110 filter_audio_example_deps="avfilter avutil"
3111 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3112 filtering_video_example_deps="avfilter avcodec avformat avutil"
3113 http_multiclient_example_deps="avformat avutil"
3114 metadata_example_deps="avformat avutil"
3115 muxing_example_deps="avcodec avformat avutil swscale"
3116 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3117 remuxing_example_deps="avcodec avformat avutil"
3118 resampling_audio_example_deps="avutil swresample"
3119 scaling_video_example_deps="avutil swscale"
3120 transcode_aac_example_deps="avcodec avformat swresample"
3121 transcoding_example_deps="avfilter avcodec avformat avutil"
3122
3123 # libraries, in linking order
3124 avcodec_deps="avutil"
3125 avdevice_deps="avformat avcodec avutil"
3126 avfilter_deps="avutil"
3127 avformat_deps="avcodec avutil"
3128 avresample_deps="avutil"
3129 postproc_deps="avutil gpl"
3130 swresample_deps="avutil"
3131 swscale_deps="avutil"
3132
3133 # programs
3134 ffmpeg_deps="avcodec avfilter avformat swresample"
3135 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3136                null_filter
3137                setpts_filter trim_filter"
3138 ffplay_deps="avcodec avformat swscale swresample sdl2"
3139 ffplay_libs='$sdl2_libs'
3140 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3141 ffprobe_deps="avcodec avformat"
3142 ffserver_deps="avformat fork sarestart"
3143 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3144
3145 # documentation
3146 podpages_deps="perl"
3147 manpages_deps="perl pod2man"
3148 htmlpages_deps="perl"
3149 htmlpages_deps_any="makeinfo_html texi2html"
3150 txtpages_deps="perl makeinfo"
3151 doc_deps_any="manpages htmlpages podpages txtpages"
3152
3153 # default parameters
3154
3155 logfile="config.log"
3156
3157 # installation paths
3158 prefix_default="/usr/local"
3159 bindir_default='${prefix}/bin'
3160 datadir_default='${prefix}/share/ffmpeg'
3161 docdir_default='${prefix}/share/doc/ffmpeg'
3162 incdir_default='${prefix}/include'
3163 libdir_default='${prefix}/lib'
3164 mandir_default='${prefix}/share/man'
3165
3166 # toolchain
3167 ar_default="ar"
3168 cc_default="gcc"
3169 cxx_default="g++"
3170 host_cc_default="gcc"
3171 cp_f="cp -f"
3172 doxygen_default="doxygen"
3173 install="install"
3174 ln_s_default="ln -s -f"
3175 nm_default="nm -g"
3176 objformat="elf"
3177 pkg_config_default=pkg-config
3178 ranlib_default="ranlib"
3179 strip_default="strip"
3180 version_script='--version-script'
3181 yasmexe_default="yasm"
3182 windres_default="windres"
3183
3184 # OS
3185 target_os_default=$(tolower $(uname -s))
3186 host_os=$target_os_default
3187
3188 # machine
3189 if test "$target_os_default" = aix; then
3190     arch_default=$(uname -p)
3191     strip_default="strip -X32_64"
3192 else
3193     arch_default=$(uname -m)
3194 fi
3195 cpu="generic"
3196 intrinsics="none"
3197
3198 # configurable options
3199 enable $PROGRAM_LIST
3200 enable $DOCUMENT_LIST
3201 enable $EXAMPLE_LIST
3202 enable $(filter_out avresample $LIBRARY_LIST)
3203 enable stripping
3204
3205 enable asm
3206 enable debug
3207 enable doc
3208 enable faan faandct faanidct
3209 enable optimizations
3210 enable runtime_cpudetect
3211 enable safe_bitstream_reader
3212 enable static
3213 enable swscale_alpha
3214 enable valgrind_backtrace
3215
3216 sws_max_filter_size_default=256
3217 set_default sws_max_filter_size
3218
3219 # Enable platform codecs by default.
3220 enable audiotoolbox
3221
3222 # Enable hwaccels by default.
3223 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3224 enable xlib
3225
3226 enable nvenc vda_framework videotoolbox videotoolbox_encoder
3227
3228 # build settings
3229 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3230 LIBPREF="lib"
3231 LIBSUF=".a"
3232 FULLNAME='$(NAME)$(BUILDSUF)'
3233 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3234 SLIBPREF="lib"
3235 SLIBSUF=".so"
3236 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3237 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3238 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3239 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3240 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3241 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3242 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3243
3244 asflags_filter=echo
3245 cflags_filter=echo
3246 ldflags_filter=echo
3247
3248 AS_C='-c'
3249 AS_O='-o $@'
3250 CC_C='-c'
3251 CC_E='-E -o $@'
3252 CC_O='-o $@'
3253 CXX_C='-c'
3254 CXX_O='-o $@'
3255 OBJCC_C='-c'
3256 OBJCC_E='-E -o $@'
3257 OBJCC_O='-o $@'
3258 LD_O='-o $@'
3259 LD_LIB='-l%'
3260 LD_PATH='-L'
3261 HOSTCC_C='-c'
3262 HOSTCC_E='-E -o $@'
3263 HOSTCC_O='-o $@'
3264 HOSTLD_O='-o $@'
3265
3266 host_libs='-lm'
3267 host_cflags_filter=echo
3268 host_ldflags_filter=echo
3269
3270 target_path='$(CURDIR)'
3271
3272 # since the object filename is not given with the -MM flag, the compiler
3273 # is only able to print the basename, and we must add the path ourselves
3274 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3275 DEPFLAGS='-MM'
3276
3277 # find source path
3278 if test -f configure; then
3279     source_path=.
3280 else
3281     source_path=$(cd $(dirname "$0"); pwd)
3282     case "$source_path" in
3283         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3284     esac
3285     test -e "$source_path/config.h" &&
3286         die "Out of tree builds are impossible with config.h in source dir."
3287 fi
3288
3289 for v in "$@"; do
3290     r=${v#*=}
3291     l=${v%"$r"}
3292     r=$(sh_quote "$r")
3293     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3294 done
3295
3296 find_things(){
3297     thing=$1
3298     pattern=$2
3299     file=$source_path/$3
3300     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3301 }
3302
3303 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3304 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3305 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3306 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3307 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3308 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3309 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3310 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3311 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3312
3313 find_things_extern(){
3314     thing=$1
3315     pattern=$2
3316     file=$source_path/$3
3317     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3318 }
3319
3320 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3321 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3322
3323 ALL_COMPONENTS="
3324     $BSF_LIST
3325     $DECODER_LIST
3326     $DEMUXER_LIST
3327     $ENCODER_LIST
3328     $FILTER_LIST
3329     $HWACCEL_LIST
3330     $INDEV_LIST
3331     $MUXER_LIST
3332     $OUTDEV_LIST
3333     $PARSER_LIST
3334     $PROTOCOL_LIST
3335 "
3336
3337 for n in $COMPONENT_LIST; do
3338     v=$(toupper ${n%s})_LIST
3339     eval enable \$$v
3340     eval ${n}_if_any="\$$v"
3341 done
3342
3343 enable $ARCH_EXT_LIST
3344
3345 die_unknown(){
3346     echo "Unknown option \"$1\"."
3347     echo "See $0 --help for available options."
3348     exit 1
3349 }
3350
3351 print_in_columns() {
3352     cols=$(expr $ncols / 24)
3353     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3354 }
3355
3356 show_list() {
3357     suffix=_$1
3358     shift
3359     echo $* | sed s/$suffix//g | print_in_columns
3360     exit 0
3361 }
3362
3363 rand_list(){
3364     IFS=', '
3365     set -- $*
3366     unset IFS
3367     for thing; do
3368         comp=${thing%:*}
3369         prob=${thing#$comp}
3370         prob=${prob#:}
3371         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3372         echo "prob ${prob:-0.5}"
3373         printf '%s\n' $comp
3374     done
3375 }
3376
3377 do_random(){
3378     action=$1
3379     shift
3380     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3381     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3382 }
3383
3384 for opt do
3385     optval="${opt#*=}"
3386     case "$opt" in
3387         --extra-ldflags=*)
3388             add_ldflags $optval
3389         ;;
3390         --extra-ldexeflags=*)
3391             add_ldexeflags $optval
3392         ;;
3393         --extra-ldlibflags=*)
3394             add_ldlibflags $optval
3395         ;;
3396         --extra-libs=*)
3397             add_extralibs $optval
3398         ;;
3399         --disable-devices)
3400             disable $INDEV_LIST $OUTDEV_LIST
3401         ;;
3402         --enable-debug=*)
3403             debuglevel="$optval"
3404         ;;
3405         --disable-programs)
3406             disable $PROGRAM_LIST
3407         ;;
3408         --disable-everything)
3409             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3410         ;;
3411         --disable-all)
3412             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3413             disable $LIBRARY_LIST $PROGRAM_LIST doc
3414             enable avutil
3415         ;;
3416         --enable-random|--disable-random)
3417             action=${opt%%-random}
3418             do_random ${action#--} $COMPONENT_LIST
3419         ;;
3420         --enable-random=*|--disable-random=*)
3421             action=${opt%%-random=*}
3422             do_random ${action#--} $optval
3423         ;;
3424         --enable-*=*|--disable-*=*)
3425             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3426             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3427             eval list=\$$(toupper $thing)_LIST
3428             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3429             list=$(filter "$name" $list)
3430             [ "$list" = "" ] && warn "Option $opt did not match anything"
3431             $action $list
3432         ;;
3433         --enable-?*|--disable-?*)
3434             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3435             if is_in $option $COMPONENT_LIST; then
3436                 test $action = disable && action=unset
3437                 eval $action \$$(toupper ${option%s})_LIST
3438             elif is_in $option $CMDLINE_SELECT; then
3439                 $action $option
3440             else
3441                 die_unknown $opt
3442             fi
3443         ;;
3444         --list-*)
3445             NAME="${opt#--list-}"
3446             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3447             NAME=${NAME%s}
3448             eval show_list $NAME \$$(toupper $NAME)_LIST
3449         ;;
3450         --help|-h) show_help
3451         ;;
3452         --fatal-warnings) enable fatal_warnings
3453         ;;
3454         *)
3455             optname="${opt%%=*}"
3456             optname="${optname#--}"
3457             optname=$(echo "$optname" | sed 's/-/_/g')
3458             if is_in $optname $CMDLINE_SET; then
3459                 eval $optname='$optval'
3460             elif is_in $optname $CMDLINE_APPEND; then
3461                 append $optname "$optval"
3462             else
3463                 die_unknown $opt
3464             fi
3465         ;;
3466     esac
3467 done
3468
3469 for e in $env; do
3470     eval "export $e"
3471 done
3472
3473 disabled logging && logfile=/dev/null
3474
3475 # Disable all the library-specific components if the library itself
3476 # is disabled, see AVCODEC_LIST and following _LIST variables.
3477
3478 disable_components(){
3479     disabled ${1} && disable $(
3480         eval components="\$$(toupper ${1})_COMPONENTS"
3481         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3482     )
3483 }
3484
3485 map 'disable_components $v' $LIBRARY_LIST
3486
3487 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3488 set >> $logfile
3489
3490 test -n "$valgrind" && toolchain="valgrind-memcheck"
3491
3492 case "$toolchain" in
3493     *-asan)
3494         cc_default="${toolchain%-asan}"
3495         add_cflags  -fsanitize=address
3496         add_ldflags -fsanitize=address
3497     ;;
3498     *-msan)
3499         cc_default="${toolchain%-msan}"
3500         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3501         add_ldflags -fsanitize=memory
3502     ;;
3503     *-tsan)
3504         cc_default="${toolchain%-tsan}"
3505         add_cflags  -fsanitize=thread -pie
3506         add_ldflags -fsanitize=thread -pie
3507         case "$toolchain" in
3508             gcc-tsan)
3509                 add_cflags  -fPIC
3510                 add_ldflags -fPIC
3511                 ;;
3512         esac
3513     ;;
3514     *-usan)
3515         cc_default="${toolchain%-usan}"
3516         add_cflags  -fsanitize=undefined
3517         add_ldflags -fsanitize=undefined
3518     ;;
3519     valgrind-*)
3520         target_exec_default="valgrind"
3521         case "$toolchain" in
3522             valgrind-massif)
3523                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3524                 ;;
3525             valgrind-memcheck)
3526                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3527                 ;;
3528         esac
3529     ;;
3530     msvc)
3531         # Check whether the current MSVC version needs the C99 converter.
3532         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3533         # support enough of C99 to build ffmpeg. Default to the new
3534         # behaviour if the regexp was unable to match anything, since this
3535         # successfully parses the version number of existing supported
3536         # versions that require the converter (MSVC 2010 and 2012).
3537         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3538         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3539             cc_default="cl"
3540         else
3541             cc_default="c99wrap cl"
3542         fi
3543         ld_default="$source_path/compat/windows/mslink"
3544         nm_default="dumpbin -symbols"
3545         ar_default="lib"
3546         case "$arch" in
3547         arm*)
3548             as_default="armasm"
3549             ;;
3550         esac
3551         target_os_default="win32"
3552         # Use a relative path for TMPDIR. This makes sure all the
3553         # ffconf temp files are written with a relative path, avoiding
3554         # issues with msys/win32 path conversion for MSVC parameters
3555         # such as -Fo<file> or -out:<file>.
3556         TMPDIR=.
3557     ;;
3558     icl)
3559         cc_default="icl"
3560         ld_default="xilink"
3561         nm_default="dumpbin -symbols"
3562         ar_default="xilib"
3563         target_os_default="win32"
3564         TMPDIR=.
3565     ;;
3566     gcov)
3567         add_cflags  -fprofile-arcs -ftest-coverage
3568         add_ldflags -fprofile-arcs -ftest-coverage
3569     ;;
3570     llvm-cov)
3571         add_cflags -fprofile-arcs -ftest-coverage
3572         add_ldflags --coverage
3573     ;;
3574     hardened)
3575         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3576         add_cflags   -fno-strict-overflow -fstack-protector-all
3577         add_ldflags  -Wl,-z,relro -Wl,-z,now
3578         add_cflags   -fPIE
3579         add_ldexeflags -fPIE -pie
3580     ;;
3581     ?*)
3582         die "Unknown toolchain $toolchain"
3583     ;;
3584 esac
3585
3586 test -n "$cross_prefix" && enable cross_compile
3587
3588 if enabled cross_compile; then
3589     test -n "$arch" && test -n "$target_os" ||
3590         die "Must specify target arch and OS when cross-compiling"
3591 fi
3592
3593 ar_default="${cross_prefix}${ar_default}"
3594 cc_default="${cross_prefix}${cc_default}"
3595 cxx_default="${cross_prefix}${cxx_default}"
3596 nm_default="${cross_prefix}${nm_default}"
3597 pkg_config_default="${cross_prefix}${pkg_config_default}"
3598 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3599     ranlib_default="${cross_prefix}${ranlib_default} -D"
3600 else
3601     ranlib_default="${cross_prefix}${ranlib_default}"
3602 fi
3603 strip_default="${cross_prefix}${strip_default}"
3604 windres_default="${cross_prefix}${windres_default}"
3605
3606 sysinclude_default="${sysroot}/usr/include"
3607
3608 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3609     target_exec target_os yasmexe
3610 enabled cross_compile || host_cc_default=$cc
3611 set_default host_cc
3612
3613 pkg_config_fail_message=""
3614 if ! $pkg_config --version >/dev/null 2>&1; then
3615     warn "$pkg_config not found, library detection may fail."
3616     pkg_config=false
3617 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3618     pkg_config_fail_message="
3619 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3620 fi
3621
3622 if test $doxygen != $doxygen_default && \
3623   ! $doxygen --version >/dev/null 2>&1; then
3624     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3625 fi
3626
3627 exesuf() {
3628     case $1 in
3629         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3630     esac
3631 }
3632
3633 EXESUF=$(exesuf $target_os)
3634 HOSTEXESUF=$(exesuf $host_os)
3635
3636 # set temporary file name
3637 : ${TMPDIR:=$TEMPDIR}
3638 : ${TMPDIR:=$TMP}
3639 : ${TMPDIR:=/tmp}
3640
3641 if [ -n "$tempprefix" ] ; then
3642     mktemp(){
3643         echo $tempprefix.${HOSTNAME}.${UID}
3644     }
3645 elif ! check_cmd mktemp -u XXXXXX; then
3646     # simple replacement for missing mktemp
3647     # NOT SAFE FOR GENERAL USE
3648     mktemp(){
3649         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3650     }
3651 fi
3652
3653 tmpfile(){
3654     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3655         (set -C; exec > $tmp) 2>/dev/null ||
3656         die "Unable to create temporary file in $TMPDIR."
3657     append TMPFILES $tmp
3658     eval $1=$tmp
3659 }
3660
3661 trap 'rm -f -- $TMPFILES' EXIT
3662
3663 tmpfile TMPASM .asm
3664 tmpfile TMPC   .c
3665 tmpfile TMPCPP .cpp
3666 tmpfile TMPE   $EXESUF
3667 tmpfile TMPH   .h
3668 tmpfile TMPM   .m
3669 tmpfile TMPO   .o
3670 tmpfile TMPS   .S
3671 tmpfile TMPSH  .sh
3672 tmpfile TMPV   .ver
3673
3674 unset -f mktemp
3675
3676 chmod +x $TMPE
3677
3678 # make sure we can execute files in $TMPDIR
3679 cat > $TMPSH 2>> $logfile <<EOF
3680 #! /bin/sh
3681 EOF
3682 chmod +x $TMPSH >> $logfile 2>&1
3683 if ! $TMPSH >> $logfile 2>&1; then
3684     cat <<EOF
3685 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3686 variable to another directory and make sure that it is not mounted noexec.
3687 EOF
3688     die "Sanity test failed."
3689 fi
3690
3691 armasm_flags(){
3692     for flag; do
3693         case $flag in
3694             # Filter out MSVC cl.exe options from cflags that shouldn't
3695             # be passed to gas-preprocessor
3696             -M[TD]*)                                            ;;
3697             *)                  echo $flag                      ;;
3698         esac
3699    done
3700 }
3701
3702 ccc_flags(){
3703     for flag; do
3704         case $flag in
3705             -std=c99)           echo -c99                       ;;
3706             -mcpu=*)            echo -arch ${flag#*=}           ;;
3707             -mieee)             echo -ieee                      ;;
3708             -O*|-fast)          echo $flag                      ;;
3709             -fno-math-errno)    echo -assume nomath_errno       ;;
3710             -g)                 echo -g3                        ;;
3711             -Wall)              echo -msg_enable level2         ;;
3712             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3713             -Wl,*)              echo $flag                      ;;
3714             -f*|-W*)                                            ;;
3715             *)                  echo $flag                      ;;
3716         esac
3717    done
3718 }
3719
3720 cparser_flags(){
3721     for flag; do
3722         case $flag in
3723             -Wno-switch)             echo -Wno-switch-enum ;;
3724             -Wno-format-zero-length) ;;
3725             -Wdisabled-optimization) ;;
3726             -Wno-pointer-sign)       echo -Wno-other ;;
3727             *)                       echo $flag ;;
3728         esac
3729     done
3730 }
3731
3732 msvc_common_flags(){
3733     for flag; do
3734         case $flag in
3735             # In addition to specifying certain flags under the compiler
3736             # specific filters, they must be specified here as well or else the
3737             # generic catch all at the bottom will print the original flag.
3738             -Wall)                ;;
3739             -std=c99)             ;;
3740             # Common flags
3741             -fomit-frame-pointer) ;;
3742             -g)                   echo -Z7 ;;
3743             -fno-math-errno)      ;;
3744             -fno-common)          ;;
3745             -fno-signed-zeros)    ;;
3746             -fPIC)                ;;
3747             -mthumb)              ;;
3748             -march=*)             ;;
3749             -lz)                  echo zlib.lib ;;
3750             -lavifil32)           echo vfw32.lib ;;
3751             -lavicap32)           echo vfw32.lib user32.lib ;;
3752             -lx264)               echo libx264.lib ;;
3753             -l*)                  echo ${flag#-l}.lib ;;
3754             -LARGEADDRESSAWARE)   echo $flag ;;
3755             -L*)                  echo -libpath:${flag#-L} ;;
3756             *)                    echo $flag ;;
3757         esac
3758     done
3759 }
3760
3761 msvc_flags(){
3762     msvc_common_flags "$@"
3763     for flag; do
3764         case $flag in
3765             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3766                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3767                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3768                                        -wd4307 \
3769                                        -wd4273 -wd4554 -wd4701 ;;
3770         esac
3771     done
3772 }
3773
3774 icl_flags(){
3775     msvc_common_flags "$@"
3776     for flag; do
3777         case $flag in
3778             # Despite what Intel's documentation says -Wall, which is supported
3779             # on Windows, does enable remarks so disable them here.
3780             -Wall)                echo $flag -Qdiag-disable:remark ;;
3781             -std=c99)             echo -Qstd=c99 ;;
3782             -flto)                echo -ipo ;;
3783         esac
3784     done
3785 }
3786
3787 icc_flags(){
3788     for flag; do
3789         case $flag in
3790             -flto)                echo -ipo ;;
3791             *)                    echo $flag ;;
3792         esac
3793     done
3794 }
3795
3796 pgi_flags(){
3797     for flag; do
3798         case $flag in
3799             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3800             -fomit-frame-pointer) echo -Mnoframe ;;
3801             -g)                   echo -gopt ;;
3802             *)                    echo $flag ;;
3803         esac
3804     done
3805 }
3806
3807 suncc_flags(){
3808     for flag; do
3809         case $flag in
3810             -march=*|-mcpu=*)
3811                 case "${flag#*=}" in
3812                     native)                   echo -xtarget=native       ;;
3813                     v9|niagara)               echo -xarch=sparc          ;;
3814                     ultrasparc)               echo -xarch=sparcvis       ;;
3815                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3816                     i586|pentium)             echo -xchip=pentium        ;;
3817                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3818                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3819                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3820                     pentium4*)          echo -xtarget=pentium4           ;;
3821                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3822                     *-sse3)             echo -xarch=sse3                 ;;
3823                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3824                     bonnell)                   echo -xarch=ssse3         ;;
3825                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3826                     westmere)                  echo -xtarget=westmere    ;;
3827                     silvermont)                echo -xarch=sse4_2        ;;
3828                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3829                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3830                                                echo -xarch=avx           ;;
3831                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3832                     btver1)                    echo -xarch=amdsse4a      ;;
3833                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3834                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3835                     k8|opteron|athlon64|athlon-fx)
3836                                                echo -xarch=sse2a         ;;
3837                     athlon*)                   echo -xarch=pentium_proa  ;;
3838                 esac
3839                 ;;
3840             -std=c99)             echo -xc99              ;;
3841             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3842             -fPIC)                echo -KPIC -xcode=pic32 ;;
3843             -W*,*)                echo $flag              ;;
3844             -f*-*|-W*|-mimpure-text)                      ;;
3845             -shared)              echo -G                 ;;
3846             *)                    echo $flag              ;;
3847         esac
3848     done
3849 }
3850
3851 tms470_flags(){
3852     for flag; do
3853         case $flag in
3854             -march=*|-mcpu=*)
3855                 case "${flag#*=}" in
3856                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3857                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3858                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3859                     armv6*|arm11*)          echo -mv=6   ;;
3860                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3861                                             echo -mv=5e  ;;
3862                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3863                 esac
3864                 ;;
3865             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3866             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3867             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3868             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3869             -msoft-float)   echo --float_support=vfplib       ;;
3870             -O[0-3]|-mf=*)  echo $flag                        ;;
3871             -g)             echo -g -mn                       ;;
3872             -pds=*)         echo $flag                        ;;
3873             -D*|-I*)        echo $flag                        ;;
3874             --gcc|--abi=*)  echo $flag                        ;;
3875             -me)            echo $flag                        ;;
3876         esac
3877     done
3878 }
3879
3880 probe_cc(){
3881     pfx=$1
3882     _cc=$2
3883     first=$3
3884
3885     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3886     unset _ld_o _ldflags _ld_lib _ld_path
3887     unset _depflags _DEPCMD _DEPFLAGS
3888     _flags_filter=echo
3889
3890     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3891         true # no-op to avoid reading stdin in following checks
3892     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3893         _type=llvm_gcc
3894         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3895         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3896         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3897         _cflags_speed='-O3'
3898         _cflags_size='-Os'
3899     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3900         _type=gcc
3901         gcc_version=$($_cc --version | head -n1)
3902         gcc_basever=$($_cc -dumpversion)
3903         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3904         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3905         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3906         case $gcc_basever in
3907             2) ;;
3908             2.*) ;;
3909             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3910         esac
3911         if [ "$first" = true ]; then
3912             case $gcc_basever in
3913                 4.2*)
3914                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3915             esac
3916         fi
3917         _cflags_speed='-O3'
3918         _cflags_size='-Os'
3919     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3920         _type=icc
3921         _ident=$($_cc --version | head -n1)
3922         _depflags='-MMD'
3923         _cflags_speed='-O3'
3924         _cflags_size='-Os'
3925         _cflags_noopt='-O1'
3926         _flags_filter=icc_flags
3927     elif $_cc -v 2>&1 | grep -q xlc; then
3928         _type=xlc
3929         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3930         _cflags_speed='-O5'
3931         _cflags_size='-O5 -qcompact'
3932     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3933         _type=ccc
3934         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3935         _DEPFLAGS='-M'
3936         _cflags_speed='-fast'
3937         _cflags_size='-O1'
3938         _flags_filter=ccc_flags
3939     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3940         test -d "$sysroot" || die "No valid sysroot specified."
3941         _type=armcc
3942         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3943         armcc_conf="$PWD/armcc.conf"
3944         $_cc --arm_linux_configure                 \
3945              --arm_linux_config_file="$armcc_conf" \
3946              --configure_sysroot="$sysroot"        \
3947              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3948              die "Error creating armcc configuration file."
3949         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3950         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3951         as_default="${cross_prefix}gcc"
3952         _depflags='-MMD'
3953         _cflags_speed='-O3'
3954         _cflags_size='-Os'
3955     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3956         _type=tms470
3957         _ident=$($_cc -version | head -n1 | tr -s ' ')
3958         _flags='--gcc --abi=eabi -me'
3959         _cc_e='-ppl -fe=$@'
3960         _cc_o='-fe=$@'
3961         _depflags='-ppa -ppd=$(@:.o=.d)'
3962         _cflags_speed='-O3 -mf=5'
3963         _cflags_size='-O3 -mf=2'
3964         _flags_filter=tms470_flags
3965     elif $_cc -v 2>&1 | grep -q clang; then
3966         _type=clang
3967         _ident=$($_cc --version 2>/dev/null | head -n1)
3968         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3969         _cflags_speed='-O3'
3970         _cflags_size='-Os'
3971     elif $_cc -V 2>&1 | grep -q Sun; then
3972         _type=suncc
3973         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3974         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3975         _DEPFLAGS='-xM1 -xc99'
3976         _ldflags='-std=c99'
3977         _cflags_speed='-O5'
3978         _cflags_size='-O5 -xspace'
3979         _flags_filter=suncc_flags
3980     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3981         _type=pathscale
3982         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3983         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3984         _cflags_speed='-O2'
3985         _cflags_size='-Os'
3986         _flags_filter='filter_out -Wdisabled-optimization'
3987     elif $_cc -v 2>&1 | grep -q Open64; then
3988         _type=open64
3989         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3990         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3991         _cflags_speed='-O2'
3992         _cflags_size='-Os'
3993         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3994     elif $_cc -V 2>&1 | grep -q Portland; then
3995         _type=pgi
3996         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3997         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3998         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3999         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4000         _cflags_noopt="-O"
4001         _flags_filter=pgi_flags
4002     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4003         _type=armasm
4004         _ident=$($_cc | head -n1)
4005         # 4509: "This form of conditional instruction is deprecated"
4006         _flags="-nologo -ignore 4509"
4007         _flags_filter=armasm_flags
4008     elif $_cc 2>&1 | grep -q Intel; then
4009         _type=icl
4010         _ident=$($_cc 2>&1 | head -n1)
4011         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4012         # Not only is O3 broken on 13.x+ but it is slower on all previous
4013         # versions (tested) as well.
4014         _cflags_speed="-O2"
4015         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4016         if $_cc 2>&1 | grep -q Linker; then
4017             _ld_o='-out:$@'
4018         else
4019             _ld_o='-Fe$@'
4020         fi
4021         _cc_o='-Fo$@'
4022         _cc_e='-P'
4023         _flags_filter=icl_flags
4024         _ld_lib='lib%.a'
4025         _ld_path='-libpath:'
4026         # -Qdiag-error to make icl error when seeing certain unknown arguments
4027         _flags='-nologo -Qdiag-error:4044,10157'
4028         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4029         # with MSVC which enables it by default.
4030         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4031         disable stripping
4032     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4033         _type=msvc
4034         _ident=$($_cc 2>&1 | head -n1)
4035         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4036         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4037         _cflags_speed="-O2"
4038         _cflags_size="-O1"
4039         if $_cc -nologo- 2>&1 | grep -q Linker; then
4040             _ld_o='-out:$@'
4041         else
4042             _ld_o='-Fe$@'
4043         fi
4044         _cc_o='-Fo$@'
4045         _cc_e='-P -Fi$@'
4046         _flags_filter=msvc_flags
4047         _ld_lib='lib%.a'
4048         _ld_path='-libpath:'
4049         _flags='-nologo'
4050         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4051         disable stripping
4052     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4053         _type=cparser
4054         _ident=$($_cc --version | head -n1)
4055         _depflags='-MMD'
4056         _cflags_speed='-O4'
4057         _cflags_size='-O2'
4058         _flags_filter=cparser_flags
4059     fi
4060
4061     eval ${pfx}_type=\$_type
4062     eval ${pfx}_ident=\$_ident
4063 }
4064
4065 set_ccvars(){
4066     eval ${1}_C=\${_cc_c-\${${1}_C}}
4067     eval ${1}_E=\${_cc_e-\${${1}_E}}
4068     eval ${1}_O=\${_cc_o-\${${1}_O}}
4069
4070     if [ -n "$_depflags" ]; then
4071         eval ${1}_DEPFLAGS=\$_depflags
4072     else
4073         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4074         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4075         eval DEP${1}FLAGS=\$_flags
4076     fi
4077 }
4078
4079 probe_cc cc "$cc" "true"
4080 cflags_filter=$_flags_filter
4081 cflags_speed=$_cflags_speed
4082 cflags_size=$_cflags_size
4083 cflags_noopt=$_cflags_noopt
4084 add_cflags $_flags $_cflags
4085 cc_ldflags=$_ldflags
4086 set_ccvars CC
4087
4088 probe_cc hostcc "$host_cc"
4089 host_cflags_filter=$_flags_filter
4090 add_host_cflags  $_flags $_cflags
4091 set_ccvars HOSTCC
4092
4093 test -n "$cc_type" && enable $cc_type ||
4094     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4095
4096 : ${as_default:=$cc}
4097 : ${objcc_default:=$cc}
4098 : ${dep_cc_default:=$cc}
4099 : ${ld_default:=$cc}
4100 : ${host_ld_default:=$host_cc}
4101 set_default ar as objcc dep_cc ld ln_s host_ld windres
4102
4103 probe_cc as "$as"
4104 asflags_filter=$_flags_filter
4105 add_asflags $_flags $_cflags
4106 set_ccvars AS
4107
4108 probe_cc objcc "$objcc"
4109 objcflags_filter=$_flags_filter
4110 add_objcflags $_flags $_cflags
4111 set_ccvars OBJC
4112
4113 probe_cc ld "$ld"
4114 ldflags_filter=$_flags_filter
4115 add_ldflags $_flags $_ldflags
4116 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4117 LD_O=${_ld_o-$LD_O}
4118 LD_LIB=${_ld_lib-$LD_LIB}
4119 LD_PATH=${_ld_path-$LD_PATH}
4120
4121 probe_cc hostld "$host_ld"
4122 host_ldflags_filter=$_flags_filter
4123 add_host_ldflags $_flags $_ldflags
4124 HOSTLD_O=${_ld_o-$HOSTLD_O}
4125
4126 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4127     probe_cc depcc "$dep_cc"
4128     CCDEP=${_DEPCMD:-$DEPCMD}
4129     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4130     DEPCCFLAGS=$_flags
4131 fi
4132
4133 if $ar 2>&1 | grep -q Microsoft; then
4134     arflags="-nologo"
4135     ar_o='-out:$@'
4136 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4137     arflags="rq"
4138     ar_o='$@'
4139 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4140     arflags='-Xany -r -c'
4141     ar_o='$@'
4142 elif $ar 2>&1 | grep -q "\[D\] "; then
4143     arflags="rcD"
4144     ar_o='$@'
4145 else
4146     arflags="rc"
4147     ar_o='$@'
4148 fi
4149
4150 add_cflags $extra_cflags
4151 add_cxxflags $extra_cxxflags
4152 add_objcflags $extra_objcflags
4153 add_asflags $extra_cflags
4154
4155 if test -n "$sysroot"; then
4156     case "$cc_type" in
4157         gcc|llvm_gcc|clang)
4158             add_cppflags --sysroot="$sysroot"
4159             add_ldflags --sysroot="$sysroot"
4160 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4161             add_cppflags -isysroot "$sysroot"
4162             add_ldflags -isysroot "$sysroot"
4163         ;;
4164         tms470)
4165             add_cppflags -I"$sysinclude"
4166             add_ldflags  --sysroot="$sysroot"
4167         ;;
4168     esac
4169 fi
4170
4171 if test "$cpu" = host; then
4172     enabled cross_compile &&
4173         die "--cpu=host makes no sense when cross-compiling."
4174
4175     case "$cc_type" in
4176         gcc|llvm_gcc)
4177             check_native(){
4178                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4179                 sed -n "/cc1.*$1=/{
4180                             s/.*$1=\\([^ ]*\\).*/\\1/
4181                             p
4182                             q
4183                         }" $TMPE
4184             }
4185             cpu=$(check_native -march || check_native -mcpu)
4186         ;;
4187         clang)
4188             check_native(){
4189                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4190                 sed -n "/cc1.*-target-cpu /{
4191                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4192                             p
4193                             q
4194                         }" $TMPE
4195             }
4196             cpu=$(check_native -march)
4197         ;;
4198     esac
4199
4200     test "${cpu:-host}" = host &&
4201         die "--cpu=host not supported with compiler $cc"
4202 fi
4203
4204 # Deal with common $arch aliases
4205 case "$arch" in
4206     aarch64|arm64)
4207         arch="aarch64"
4208     ;;
4209     arm*|iPad*|iPhone*)
4210         arch="arm"
4211     ;;
4212     mips*|IP*)
4213         case "$arch" in
4214         *el)
4215             add_cppflags -EL
4216             add_ldflags -EL
4217         ;;
4218         *eb)
4219             add_cppflags -EB
4220             add_ldflags -EB
4221         ;;
4222         esac
4223         arch="mips"
4224     ;;
4225     parisc*|hppa*)
4226         arch="parisc"
4227     ;;
4228     "Power Macintosh"|ppc*|powerpc*)
4229         arch="ppc"
4230     ;;
4231     s390|s390x)
4232         arch="s390"
4233     ;;
4234     sh4|sh)
4235         arch="sh4"
4236     ;;
4237     sun4*|sparc*)
4238         arch="sparc"
4239     ;;
4240     tilegx|tile-gx)
4241         arch="tilegx"
4242     ;;
4243     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4244         arch="x86"
4245     ;;
4246 esac
4247
4248 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4249 enable $arch
4250
4251 # Add processor-specific flags
4252 if enabled aarch64; then
4253
4254     case $cpu in
4255         armv*)
4256             cpuflags="-march=$cpu"
4257         ;;
4258         *)
4259             cpuflags="-mcpu=$cpu"
4260         ;;
4261     esac
4262
4263 elif enabled alpha; then
4264
4265     cpuflags="-mcpu=$cpu"
4266
4267 elif enabled arm; then
4268
4269     check_arm_arch() {
4270         check_cpp_condition stddef.h \
4271             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4272             $cpuflags
4273     }
4274
4275     probe_arm_arch() {
4276         if   check_arm_arch 4;        then echo armv4
4277         elif check_arm_arch 4T;       then echo armv4t
4278         elif check_arm_arch 5;        then echo armv5
4279         elif check_arm_arch 5E;       then echo armv5e
4280         elif check_arm_arch 5T;       then echo armv5t
4281         elif check_arm_arch 5TE;      then echo armv5te
4282         elif check_arm_arch 5TEJ;     then echo armv5te
4283         elif check_arm_arch 6;        then echo armv6
4284         elif check_arm_arch 6J;       then echo armv6j
4285         elif check_arm_arch 6K;       then echo armv6k
4286         elif check_arm_arch 6Z;       then echo armv6z
4287         elif check_arm_arch 6ZK;      then echo armv6zk
4288         elif check_arm_arch 6T2;      then echo armv6t2
4289         elif check_arm_arch 7;        then echo armv7
4290         elif check_arm_arch 7A  7_A;  then echo armv7-a
4291         elif check_arm_arch 7S;       then echo armv7-a
4292         elif check_arm_arch 7R  7_R;  then echo armv7-r
4293         elif check_arm_arch 7M  7_M;  then echo armv7-m
4294         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4295         elif check_arm_arch 8A  8_A;  then echo armv8-a
4296         fi
4297     }
4298
4299     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4300
4301     case $cpu in
4302         armv*)
4303             cpuflags="-march=$cpu"
4304             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4305         ;;
4306         *)
4307             cpuflags="-mcpu=$cpu"
4308             case $cpu in
4309                 cortex-a*)                               subarch=armv7a  ;;
4310                 cortex-r*)                               subarch=armv7r  ;;
4311                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4312                 arm11*)                                  subarch=armv6   ;;
4313                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4314                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4315                 *)                             subarch=$(probe_arm_arch) ;;
4316             esac
4317         ;;
4318     esac
4319
4320     case "$subarch" in
4321         armv5t*)    enable fast_clz                ;;
4322         armv[6-8]*)
4323             enable fast_clz
4324             disabled fast_unaligned || enable fast_unaligned
4325             ;;
4326     esac
4327
4328 elif enabled avr32; then
4329
4330     case $cpu in
4331         ap7[02]0[0-2])
4332             subarch="avr32_ap"
4333             cpuflags="-mpart=$cpu"
4334         ;;
4335         ap)
4336             subarch="avr32_ap"
4337             cpuflags="-march=$cpu"
4338         ;;
4339         uc3[ab]*)
4340             subarch="avr32_uc"
4341             cpuflags="-mcpu=$cpu"
4342         ;;
4343         uc)
4344             subarch="avr32_uc"
4345             cpuflags="-march=$cpu"
4346         ;;
4347     esac
4348
4349 elif enabled bfin; then
4350
4351     cpuflags="-mcpu=$cpu"
4352
4353 elif enabled mips; then
4354
4355     cpuflags="-march=$cpu"
4356
4357     if [ "$cpu" != "generic" ]; then
4358         disable mips32r2
4359         disable mips32r5
4360         disable mips64r2
4361         disable mips32r6
4362         disable mips64r6
4363         disable loongson2
4364         disable loongson3
4365
4366         case $cpu in
4367             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4368                 enable mips32r2
4369                 disable msa
4370             ;;
4371             p5600|i6400|p6600)
4372                 disable mipsdsp
4373                 disable mipsdspr2
4374             ;;
4375             loongson*)
4376                 enable loongson2
4377                 enable loongson3
4378                 enable local_aligned_8 local_aligned_16 local_aligned_32
4379                 enable simd_align_16
4380                 enable fast_64bit
4381                 enable fast_clz
4382                 enable fast_cmov
4383                 enable fast_unaligned
4384                 disable aligned_stack
4385                 disable mipsfpu
4386                 disable mipsdsp
4387                 disable mipsdspr2
4388                 case $cpu in
4389                     loongson3*)
4390                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4391                     ;;
4392                     loongson2e)
4393                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4394                     ;;
4395                     loongson2f)
4396                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4397                     ;;
4398                 esac
4399             ;;
4400             *)
4401                 # Unknown CPU. Disable everything.
4402                 warn "unknown CPU. Disabling all MIPS optimizations."
4403                 disable mipsfpu
4404                 disable mipsdsp
4405                 disable mipsdspr2
4406                 disable msa
4407                 disable mmi
4408             ;;
4409         esac
4410
4411         case $cpu in
4412             24kc)
4413                 disable mipsfpu
4414                 disable mipsdsp
4415                 disable mipsdspr2
4416             ;;
4417             24kf*)
4418                 disable mipsdsp
4419                 disable mipsdspr2
4420             ;;
4421             24kec|34kc|1004kc)
4422                 disable mipsfpu
4423                 disable mipsdspr2
4424             ;;
4425             24kef*|34kf*|1004kf*)
4426                 disable mipsdspr2
4427             ;;
4428             74kc)
4429                 disable mipsfpu
4430             ;;
4431             p5600)
4432                 enable mips32r5
4433                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4434             ;;
4435             i6400)
4436                 enable mips64r6
4437                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4438             ;;
4439             p6600)
4440                 enable mips64r6
4441                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4442             ;;
4443         esac
4444     else
4445         # We do not disable anything. Is up to the user to disable the unwanted features.
4446         warn 'generic cpu selected'
4447     fi
4448
4449 elif enabled ppc; then
4450
4451     disable ldbrx
4452
4453     case $(tolower $cpu) in
4454         601|ppc601|powerpc601)
4455             cpuflags="-mcpu=601"
4456             disable altivec
4457         ;;
4458         603*|ppc603*|powerpc603*)
4459             cpuflags="-mcpu=603"
4460             disable altivec
4461         ;;
4462         604*|ppc604*|powerpc604*)
4463             cpuflags="-mcpu=604"
4464             disable altivec
4465         ;;
4466         g3|75*|ppc75*|powerpc75*)
4467             cpuflags="-mcpu=750"
4468             disable altivec
4469         ;;
4470         g4|745*|ppc745*|powerpc745*)
4471             cpuflags="-mcpu=7450"
4472             disable vsx
4473         ;;
4474         74*|ppc74*|powerpc74*)
4475             cpuflags="-mcpu=7400"
4476             disable vsx
4477         ;;
4478         g5|970|ppc970|powerpc970)
4479             cpuflags="-mcpu=970"
4480             disable vsx
4481         ;;
4482         power[3-6]*)
4483             cpuflags="-mcpu=$cpu"
4484             disable vsx
4485         ;;
4486         power[7-8]*)
4487             cpuflags="-mcpu=$cpu"
4488         ;;
4489         cell)
4490             cpuflags="-mcpu=cell"
4491             enable ldbrx
4492             disable vsx
4493         ;;
4494         e500mc)
4495             cpuflags="-mcpu=e500mc"
4496             disable altivec
4497         ;;
4498         e500v2)
4499             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4500             disable altivec
4501             disable dcbzl
4502         ;;
4503         e500)
4504             cpuflags="-mcpu=8540 -mhard-float"
4505             disable altivec
4506             disable dcbzl
4507         ;;
4508     esac
4509
4510 elif enabled sparc; then
4511
4512     case $cpu in
4513         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4514             cpuflags="-mcpu=$cpu"
4515         ;;
4516         ultrasparc*|niagara[234])
4517             cpuflags="-mcpu=$cpu"
4518         ;;
4519     esac
4520
4521 elif enabled x86; then
4522
4523     case $cpu in
4524         i[345]86|pentium)
4525             cpuflags="-march=$cpu"
4526             disable i686
4527             disable mmx
4528         ;;
4529         # targets that do NOT support nopl and conditional mov (cmov)
4530         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4531             cpuflags="-march=$cpu"
4532             disable i686
4533         ;;
4534         # targets that do support nopl and conditional mov (cmov)
4535         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4536         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4537         |amdfam10|barcelona|b[dt]ver*|znver*)
4538             cpuflags="-march=$cpu"
4539             enable i686
4540             enable fast_cmov
4541         ;;
4542         # targets that do support conditional mov but on which it's slow
4543         pentium4|pentium4m|prescott|nocona)
4544             cpuflags="-march=$cpu"
4545             enable i686
4546             disable fast_cmov
4547         ;;
4548     esac
4549
4550 fi
4551
4552 if [ "$cpu" != generic ]; then
4553     add_cflags  $cpuflags
4554     add_asflags $cpuflags
4555     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4556 fi
4557
4558 # compiler sanity check
4559 check_exec <<EOF
4560 int main(void){ return 0; }
4561 EOF
4562 if test "$?" != 0; then
4563     echo "$cc is unable to create an executable file."
4564     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4565         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4566         echo "Only do this if you know what cross compiling means."
4567     fi
4568     die "C compiler test failed."
4569 fi
4570
4571 add_cppflags -D_ISOC99_SOURCE
4572 add_cxxflags -D__STDC_CONSTANT_MACROS
4573 add_cxxflags -std=c++98
4574 check_cflags -std=c99
4575 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4576 #include <stdlib.h>
4577 EOF
4578 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4579 #include <stdlib.h>
4580 EOF
4581
4582 add_host_cppflags -D_ISOC99_SOURCE
4583 check_host_cflags -std=c99
4584 check_host_cflags -Wall
4585 check_host_cflags -O3
4586
4587 check_64bit(){
4588     arch32=$1
4589     arch64=$2
4590     expr=$3
4591     check_code cc "" "int test[2*($expr) - 1]" &&
4592         subarch=$arch64 || subarch=$arch32
4593 }
4594
4595 case "$arch" in
4596     aarch64|alpha|ia64)
4597         spic=$shared
4598     ;;
4599     mips)
4600         check_64bit mips mips64 '_MIPS_SIM > 1'
4601         spic=$shared
4602     ;;
4603     parisc)
4604         check_64bit parisc parisc64 'sizeof(void *) > 4'
4605         spic=$shared
4606     ;;
4607     ppc)
4608         check_64bit ppc ppc64 'sizeof(void *) > 4'
4609         spic=$shared
4610     ;;
4611     s390)
4612         check_64bit s390 s390x 'sizeof(void *) > 4'
4613         spic=$shared
4614     ;;
4615     sparc)
4616         check_64bit sparc sparc64 'sizeof(void *) > 4'
4617         spic=$shared
4618     ;;
4619     x86)
4620         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4621         # Treat x32 as x64 for now. Note it also needs spic=$shared
4622         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4623             subarch=x86_64
4624         if test "$subarch" = "x86_64"; then
4625             spic=$shared
4626         fi
4627     ;;
4628     ppc)
4629         check_cc <<EOF && subarch="ppc64"
4630         int test[(int)sizeof(char*) - 7];
4631 EOF
4632     ;;
4633 esac
4634
4635 enable $subarch
4636 enabled spic && enable_weak pic
4637
4638 # OS specific
4639 case $target_os in
4640     aix)
4641         SHFLAGS=-shared
4642         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4643         enabled shared && add_ldflags -Wl,-brtl
4644         ;;
4645     android)
4646         disable symver
4647         enable section_data_rel_ro
4648         SLIB_INSTALL_NAME='$(SLIBNAME)'
4649         SLIB_INSTALL_LINKS=
4650         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4651         ;;
4652     haiku)
4653         prefix_default="/boot/common"
4654         network_extralibs="-lnetwork"
4655         host_libs=
4656         ;;
4657     sunos)
4658         SHFLAGS='-shared -Wl,-h,$$(@F)'
4659         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4660         network_extralibs="-lsocket -lnsl"
4661         add_cppflags -D__EXTENSIONS__
4662         # When using suncc to build, the Solaris linker will mark
4663         # an executable with each instruction set encountered by
4664         # the Solaris assembler.  As our libraries contain their own
4665         # guards for processor-specific code, instead suppress
4666         # generation of the HWCAPS ELF section on Solaris x86 only.
4667         enabled_all suncc x86 &&
4668             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4669             add_ldflags -Wl,-M,mapfile
4670         nm_default='nm -P -g'
4671         version_script='-M'
4672         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4673         ;;
4674     netbsd)
4675         disable symver
4676         oss_indev_extralibs="-lossaudio"
4677         oss_outdev_extralibs="-lossaudio"
4678         enabled gcc || check_ldflags -Wl,-zmuldefs
4679         ;;
4680     openbsd|bitrig)
4681         disable symver
4682         SHFLAGS='-shared'
4683         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4684         SLIB_INSTALL_LINKS=
4685         oss_indev_extralibs="-lossaudio"
4686         oss_outdev_extralibs="-lossaudio"
4687         ;;
4688     dragonfly)
4689         disable symver
4690         ;;
4691     freebsd)
4692         ;;
4693     bsd/os)
4694         add_extralibs -lpoll -lgnugetopt
4695         strip="strip -d"
4696         ;;
4697     darwin)
4698         enabled ppc && add_asflags -force_cpusubtype_ALL
4699         install_name_dir_default='$(SHLIBDIR)'
4700         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4701         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4702         strip="${strip} -x"
4703         add_ldflags -Wl,-dynamic,-search_paths_first
4704         SLIBSUF=".dylib"
4705         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4706         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4707         objformat="macho"
4708         enabled x86_64 && objformat="macho64"
4709         enabled_any pic shared x86_64 ||
4710             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4711         check_header dispatch/dispatch.h &&
4712             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4713         version_script='-exported_symbols_list'
4714         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4715         ;;
4716     msys*)
4717         die "Native MSYS builds are discouraged, please use the MINGW environment."
4718         ;;
4719     mingw32*|mingw64*)
4720         if test $target_os = "mingw32ce"; then
4721             disable network
4722         else
4723             target_os=mingw32
4724         fi
4725         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4726         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4727         LIBTARGET=i386
4728         if enabled x86_64; then
4729             LIBTARGET="i386:x86-64"
4730         elif enabled arm; then
4731             LIBTARGET=arm-wince
4732         fi
4733         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4734         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4735         shlibdir_default="$bindir_default"
4736         SLIBPREF=""
4737         SLIBSUF=".dll"
4738         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4739         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4740         dlltool="${cross_prefix}dlltool"
4741         if check_cmd lib.exe -list; then
4742             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4743             if enabled x86_64; then
4744                 LIBTARGET=x64
4745             fi
4746         elif check_cmd $dlltool --version; then
4747             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4748         fi
4749         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4750         SLIB_INSTALL_LINKS=
4751         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4752         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4753         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4754         objformat="win32"
4755         ranlib=:
4756         enable dos_paths
4757         check_ldflags -Wl,--nxcompat,--dynamicbase
4758         # Lets work around some stupidity in binutils.
4759         # ld will strip relocations from executables even though we need them
4760         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4761         # however ld then forgets what the entry point should be (oops) so we
4762         # have to manually (re)set it.
4763         if enabled x86_32; then
4764             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4765         elif enabled x86_64; then
4766             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4767             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4768             # Set image base >4GB for extra entropy with HEASLR
4769             add_ldexeflags -Wl,--image-base,0x140000000
4770             append SHFLAGS -Wl,--image-base,0x180000000
4771         fi
4772         ;;
4773     win32|win64)
4774         disable symver
4775         if enabled shared; then
4776             # Link to the import library instead of the normal static library
4777             # for shared libs.
4778             LD_LIB='%.lib'
4779             # Cannot build both shared and static libs with MSVC or icl.
4780             disable static
4781         fi
4782         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4783         shlibdir_default="$bindir_default"
4784         SLIBPREF=""
4785         SLIBSUF=".dll"
4786         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4787         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4788         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4789         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4790         SLIB_INSTALL_LINKS=
4791         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4792         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4793         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4794         objformat="win32"
4795         ranlib=:
4796         enable dos_paths
4797         ;;
4798     cygwin*)
4799         target_os=cygwin
4800         shlibdir_default="$bindir_default"
4801         SLIBPREF="cyg"
4802         SLIBSUF=".dll"
4803         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4804         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4805         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4806         SLIB_INSTALL_LINKS=
4807         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4808         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4809         objformat="win32"
4810         enable dos_paths
4811         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4812         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4813         ;;
4814     *-dos|freedos|opendos)
4815         network_extralibs="-lsocket"
4816         objformat="coff"
4817         enable dos_paths
4818         add_cppflags -U__STRICT_ANSI__
4819         ;;
4820     linux)
4821         enable dv1394
4822         enable section_data_rel_ro
4823         ;;
4824     irix*)
4825         target_os=irix
4826         ranlib="echo ignoring ranlib"
4827         ;;
4828     os/2*)
4829         strip="lxlite -CS"
4830         objformat="aout"
4831         add_cppflags -D_GNU_SOURCE
4832         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4833         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4834         LIBSUF="_s.a"
4835         SLIBPREF=""
4836         SLIBSUF=".dll"
4837         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4838         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4839         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
4840             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
4841             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
4842             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
4843             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
4844         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
4845             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
4846         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4847         SLIB_INSTALL_LINKS=
4848         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
4849         enable dos_paths
4850         enable_weak os2threads
4851         ;;
4852     gnu/kfreebsd)
4853         add_cppflags -D_BSD_SOURCE
4854         ;;
4855     gnu)
4856         ;;
4857     qnx)
4858         add_cppflags -D_QNX_SOURCE
4859         network_extralibs="-lsocket"
4860         ;;
4861     symbian)
4862         SLIBSUF=".dll"
4863         enable dos_paths
4864         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4865         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4866         add_ldflags -Wl,--target1-abs,--no-undefined \
4867                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4868                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4869         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4870                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4871                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4872         ;;
4873     osf1)
4874         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4875         ;;
4876     minix)
4877         ;;
4878     plan9)
4879         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4880                      -D_REENTRANT_SOURCE        \
4881                      -D_RESEARCH_SOURCE         \
4882                      -DFD_SETSIZE=96            \
4883                      -DHAVE_SOCK_OPTS
4884         add_compat strtod.o strtod=avpriv_strtod
4885         network_extralibs='-lbsd'
4886         exeobjs=compat/plan9/main.o
4887         disable ffserver
4888         cp_f='cp'
4889         ;;
4890     none)
4891         ;;
4892     *)
4893         die "Unknown OS '$target_os'."
4894         ;;
4895 esac
4896
4897 # test if creating links works
4898 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4899 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4900 mkdir "$link_dest"
4901 $ln_s "$link_dest" "$link_name"
4902 touch "$link_dest/test_file"
4903 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4904     # create link to source path
4905     [ -e src ] && rm src
4906     $ln_s "$source_path" src
4907     source_link=src
4908 else
4909     # creating directory links doesn't work
4910     # fall back to using the full source path
4911     source_link="$source_path"
4912 fi
4913 # cleanup
4914 rm -r "$link_dest"
4915 rm -r "$link_name"
4916
4917 # determine libc flavour
4918
4919 probe_libc(){
4920     pfx=$1
4921     pfx_no_=${pfx%_}
4922     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4923     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4924         eval ${pfx}libc_type=uclibc
4925         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4926     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4927         eval ${pfx}libc_type=glibc
4928         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4929     # MinGW headers can be installed on Cygwin, so check for newlib first.
4930     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4931         eval ${pfx}libc_type=newlib
4932         add_${pfx}cppflags -U__STRICT_ANSI__
4933     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4934     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4935         eval ${pfx}libc_type=mingw64
4936         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4937             add_compat msvcrt/snprintf.o
4938             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4939         fi
4940         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4941         eval test \$${pfx_no_}cc_type = "gcc" &&
4942             add_${pfx}cppflags -D__printf__=__gnu_printf__
4943     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4944          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4945         eval ${pfx}libc_type=mingw32
4946         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4947             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4948             die "ERROR: MinGW32 runtime version must be >= 3.15."
4949         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4950         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||
4951             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4952         eval test \$${pfx_no_}cc_type = "gcc" &&
4953             add_${pfx}cppflags -D__printf__=__gnu_printf__
4954     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4955         eval ${pfx}libc_type=msvcrt
4956         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4957             if [ "$pfx" = host_ ]; then
4958                 add_host_cppflags -Dsnprintf=_snprintf
4959             else
4960                 add_compat strtod.o strtod=avpriv_strtod
4961                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4962                                              _snprintf=avpriv_snprintf  \
4963                                              vsnprintf=avpriv_vsnprintf
4964             fi
4965         fi
4966         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4967         # 0x601 by default unless something else is set by the user.
4968         # This can easily lead to us detecting functions only present
4969         # in such new versions and producing binaries requiring windows 7.0.
4970         # Therefore explicitly set the default to XP unless the user has
4971         # set something else on the command line.
4972         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4973         # family. For these cases, configure is free to use any functions
4974         # found in the SDK headers by default. (Alternatively, we could force
4975         # _WIN32_WINNT to 0x0602 in that case.)
4976         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4977             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4978 #ifdef WINAPI_FAMILY
4979 #include <winapifamily.h>
4980 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4981 #error not desktop
4982 #endif
4983 #endif
4984 EOF
4985     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4986         eval ${pfx}libc_type=klibc
4987     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4988         eval ${pfx}libc_type=bionic
4989     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4990         eval ${pfx}libc_type=solaris
4991         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4992     fi
4993     check_${pfx}cc <<EOF
4994 #include <time.h>
4995 void *v = localtime_r;
4996 EOF
4997 test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4998 #include <time.h>
4999 void *v = localtime_r;
5000 EOF
5001
5002 }
5003
5004 probe_libc
5005 test -n "$libc_type" && enable libc_$libc_type
5006 probe_libc host_
5007 test -n "$host_libc_type" && enable host_libc_$host_libc_type
5008
5009 case $libc_type in
5010     bionic)
5011         add_compat strtod.o strtod=avpriv_strtod
5012         ;;
5013 esac
5014
5015 # hacks for compiler/libc/os combinations
5016
5017 if enabled_all tms470 libc_glibc; then
5018     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
5019     add_cppflags -D__USER_LABEL_PREFIX__=
5020     add_cppflags -D__builtin_memset=memset
5021     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
5022     add_cflags   -pds=48    # incompatible redefinition of macro
5023 fi
5024
5025 if enabled_all ccc libc_glibc; then
5026     add_ldflags -Wl,-z,now  # calls to libots crash without this
5027 fi
5028
5029 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5030     add_cppflags '-I\$(SRC_PATH)/compat/float'
5031
5032 esc(){
5033     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
5034 }
5035
5036 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
5037
5038 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5039
5040 set_default libdir
5041 : ${shlibdir_default:="$libdir"}
5042 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5043
5044 set_default $PATHS_LIST
5045 set_default nm
5046
5047 # we need to build at least one lib type
5048 if ! enabled_any static shared; then
5049     cat <<EOF
5050 At least one library type must be built.
5051 Specify --enable-static to build the static libraries or --enable-shared to
5052 build the shared libraries as well. To only build the shared libraries specify
5053 --disable-static in addition to --enable-shared.
5054 EOF
5055     exit 1
5056 fi
5057
5058 die_license_disabled() {
5059     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
5060 }
5061
5062 die_license_disabled_gpl() {
5063     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
5064 }
5065
5066 die_license_disabled gpl frei0r
5067 die_license_disabled gpl libcdio
5068 die_license_disabled gpl librubberband
5069 die_license_disabled gpl libsmbclient
5070 die_license_disabled gpl libvidstab
5071 die_license_disabled gpl libx264
5072 die_license_disabled gpl libx265
5073 die_license_disabled gpl libxavs
5074 die_license_disabled gpl libxvid
5075 die_license_disabled gpl x11grab
5076
5077 die_license_disabled nonfree cuda
5078 die_license_disabled nonfree cuvid
5079 die_license_disabled nonfree libnpp
5080 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
5081 enabled gpl && die_license_disabled_gpl nonfree openssl
5082
5083 die_license_disabled version3 gmp
5084 die_license_disabled version3 libopencore_amrnb
5085 die_license_disabled version3 libopencore_amrwb
5086 die_license_disabled version3 libsmbclient
5087 die_license_disabled version3 libvo_amrwbenc
5088
5089 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
5090
5091 disabled optimizations || check_cflags -fomit-frame-pointer
5092
5093 enable_weak_pic() {
5094     disabled pic && return
5095     enable pic
5096     add_cppflags -DPIC
5097     case "$target_os" in
5098     mingw*|cygwin*)
5099         ;;
5100     *)
5101         add_cflags -fPIC
5102         ;;
5103     esac
5104     add_asflags  -fPIC
5105 }
5106
5107 enabled pic && enable_weak_pic
5108
5109 check_cc <<EOF || die "Symbol mangling check failed."
5110 int ff_extern;
5111 EOF
5112 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5113 extern_prefix=${sym%%ff_extern*}
5114
5115 check_cc <<EOF && enable_weak inline_asm
5116 void foo(void) { __asm__ volatile ("" ::); }
5117 EOF
5118
5119 _restrict=
5120 for restrict_keyword in restrict __restrict__ __restrict; do
5121     check_cc <<EOF && _restrict=$restrict_keyword && break
5122 void foo(char * $restrict_keyword p);
5123 EOF
5124 done
5125
5126 check_cc <<EOF && enable pragma_deprecated
5127 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5128 EOF
5129
5130 check_cc <<EOF && enable attribute_packed
5131 struct { int x; } __attribute__((packed)) x;
5132 EOF
5133
5134 check_cc <<EOF && enable attribute_may_alias
5135 union { int x; } __attribute__((may_alias)) x;
5136 EOF
5137
5138 check_cc <<EOF || die "endian test failed"
5139 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5140 EOF
5141 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5142
5143 if ! enabled ppc64 || enabled bigendian; then
5144     disable vsx
5145 fi
5146
5147 check_gas() {
5148     log "check_gas using '$as' as AS"
5149     # :vararg is used on aarch64, arm and ppc altivec
5150     check_as <<EOF || return 1
5151 .macro m n, y:vararg=0
5152 \n: .int \y
5153 .endm
5154 m x
5155 EOF
5156     # .altmacro is only used in arm asm
5157     ! enabled arm || check_as <<EOF || return 1
5158 .altmacro
5159 EOF
5160     enable gnu_as
5161     return 0
5162 }
5163
5164 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5165     nogas=:
5166     enabled_any arm aarch64 && nogas=die
5167     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5168     as_noop=-v
5169
5170     case $as_type in
5171         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5172         gcc)  gaspp_as_type=gas ;;
5173         *)    gaspp_as_type=$as_type ;;
5174     esac
5175
5176     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5177
5178     test "${as#*gas-preprocessor.pl}" != "$as" ||
5179     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5180         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5181
5182     if ! check_gas ; then
5183         as=${gas:=$as}
5184         check_gas || \
5185             $nogas "GNU assembler not found, install/update gas-preprocessor"
5186     fi
5187
5188     check_as <<EOF && enable as_func
5189 .func test
5190 .endfunc
5191 EOF
5192 fi
5193
5194 check_inline_asm inline_asm_labels '"1:\n"'
5195
5196 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5197
5198 if enabled aarch64; then
5199     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5200     # internal assembler in clang 3.3 does not support this instruction
5201     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5202     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5203
5204     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5205
5206 elif enabled alpha; then
5207
5208     check_cflags -mieee
5209
5210 elif enabled arm; then
5211
5212     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5213
5214     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5215 float func(float a, float b){ return a+b; }
5216 EOF
5217
5218     enabled thumb && check_cflags -mthumb || check_cflags -marm
5219
5220     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5221         enable vfp_args
5222     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5223         enable vfp_args
5224     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5225         case "${cross_prefix:-$cc}" in
5226             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5227             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5228 __asm__ (".eabi_attribute 28, 1");
5229 int main(void) { return 0; }
5230 EOF
5231         esac
5232         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5233     fi
5234
5235     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5236     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5237     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5238     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5239     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5240     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5241     enabled setend  && check_insn setend  'setend be'
5242
5243     [ $target_os = linux ] || [ $target_os = android ] ||
5244         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5245             $ARCH_EXT_LIST_ARM
5246
5247     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5248
5249     check_as <<EOF && enable as_dn_directive
5250 ra .dn d0.i16
5251 .unreq ra
5252 EOF
5253
5254     # llvm's integrated assembler supports .object_arch from llvm 3.5
5255     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5256 .object_arch armv4
5257 EOF
5258
5259     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5260
5261 elif enabled mips; then
5262
5263     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5264     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5265     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5266
5267     # Enable minimum ISA based on selected options
5268     if enabled mips64; then
5269         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5270         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5271         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5272     else
5273         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5274         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5275         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5276         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5277     fi
5278
5279     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5280     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5281     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5282     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5283     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5284
5285 elif enabled parisc; then
5286
5287     if enabled gcc; then
5288         case $($cc -dumpversion) in
5289             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5290         esac
5291     fi
5292
5293 elif enabled ppc; then
5294
5295     enable local_aligned_8 local_aligned_16 local_aligned_32
5296
5297     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5298     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5299     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5300     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5301
5302     # AltiVec flags: The FSF version of GCC differs from the Apple version
5303     if enabled altivec; then
5304         check_cflags -maltivec -mabi=altivec &&
5305         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5306         check_cflags -faltivec
5307
5308         # check if our compiler supports Motorola AltiVec C API
5309         check_cc <<EOF || disable altivec
5310 $inc_altivec_h
5311 int main(void) {
5312     vector signed int v1 = (vector signed int) { 0 };
5313     vector signed int v2 = (vector signed int) { 1 };
5314     v1 = vec_add(v1, v2);
5315     return 0;
5316 }
5317 EOF
5318
5319         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5320     fi
5321
5322     if enabled vsx; then
5323         check_cflags -mvsx &&
5324         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5325     fi
5326
5327     if enabled power8; then
5328         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5329     fi
5330
5331 elif enabled x86; then
5332
5333     check_builtin rdtsc    intrin.h   "__rdtsc()"
5334     check_builtin mm_empty mmintrin.h "_mm_empty()"
5335
5336     enable local_aligned_8 local_aligned_16 local_aligned_32
5337
5338     # check whether EBP is available on x86
5339     # As 'i' is stored on the stack, this program will crash
5340     # if the base pointer is used to access it because the
5341     # base pointer is cleared in the inline assembly code.
5342     check_exec_crash <<EOF && enable ebp_available
5343 volatile int i=0;
5344 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5345 return i;
5346 EOF
5347
5348     # check whether EBX is available on x86
5349     check_inline_asm ebx_available '""::"b"(0)' &&
5350         check_inline_asm ebx_available '"":::"%ebx"'
5351
5352     # check whether xmm clobbers are supported
5353     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5354
5355     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5356         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5357
5358     # check whether binutils is new enough to compile SSSE3/MMXEXT
5359     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5360     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5361
5362     if ! disabled_any asm mmx yasm; then
5363         if check_cmd $yasmexe --version; then
5364             enabled x86_64 && yasm_extra="-m amd64"
5365             yasm_debug="-g dwarf2"
5366         elif check_cmd nasm -v; then
5367             yasmexe=nasm
5368             yasm_debug="-g -F dwarf"
5369             if enabled x86_64; then
5370                 case "$objformat" in
5371                     elf)   objformat=elf64 ;;
5372                     win32) objformat=win64 ;;
5373                 esac
5374             fi
5375         fi
5376
5377         YASMFLAGS="-f $objformat $yasm_extra"
5378         enabled pic               && append YASMFLAGS "-DPIC"
5379         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5380         case "$objformat" in
5381             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5382         esac
5383
5384         check_yasm "movbe ecx, [5]" && enable yasm ||
5385             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5386         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5387         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5388         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5389         check_yasm "CPU amdnop" || disable cpunop
5390     fi
5391
5392     case "$cpu" in
5393         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5394             disable fast_clz
5395         ;;
5396     esac
5397
5398 fi
5399
5400 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5401
5402 check_ldflags -Wl,--as-needed
5403 check_ldflags -Wl,-z,noexecstack
5404
5405 if check_func dlopen && check_func dlsym; then
5406     ldl=
5407 elif check_func dlopen -ldl && check_func dlsym -ldl; then
5408     ldl=-ldl
5409 fi
5410
5411 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5412 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5413 frei0r_filter_extralibs='$ldl'
5414 frei0r_src_filter_extralibs='$ldl'
5415 ladspa_filter_extralibs='$ldl'
5416 nvenc_extralibs='$ldl'
5417 coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5418 coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5419
5420 if ! disabled network; then
5421     check_func getaddrinfo $network_extralibs
5422     check_func inet_aton $network_extralibs
5423
5424     check_type netdb.h "struct addrinfo"
5425     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5426     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5427     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5428     check_type poll.h "struct pollfd"
5429     check_type netinet/sctp.h "struct sctp_event_subscribe"
5430     check_struct "sys/socket.h" "struct msghdr" msg_flags
5431     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5432     check_type netinet/in.h "struct sockaddr_in6"
5433     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5434     check_type "sys/types.h sys/socket.h" socklen_t
5435
5436     # Prefer arpa/inet.h over winsock2
5437     if check_header arpa/inet.h ; then
5438         check_func closesocket
5439     elif check_header winsock2.h ; then
5440         check_func_headers winsock2.h closesocket -lws2 &&
5441             network_extralibs="-lws2" ||
5442         { check_func_headers winsock2.h closesocket -lws2_32 &&
5443             network_extralibs="-lws2_32"; } || disable winsock2_h network
5444         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5445
5446         check_type ws2tcpip.h socklen_t
5447         check_type ws2tcpip.h "struct addrinfo"
5448         check_type ws2tcpip.h "struct group_source_req"
5449         check_type ws2tcpip.h "struct ip_mreq_source"
5450         check_type ws2tcpip.h "struct ipv6_mreq"
5451         check_type winsock2.h "struct pollfd"
5452         check_struct winsock2.h "struct sockaddr" sa_len
5453         check_type ws2tcpip.h "struct sockaddr_in6"
5454         check_type ws2tcpip.h "struct sockaddr_storage"
5455     else
5456         disable network
5457     fi
5458 fi
5459
5460 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5461 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5462 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5463 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5464 check_builtin sarestart signal.h "SA_RESTART"
5465 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5466 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5467 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5468 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5469 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5470
5471 case "$custom_allocator" in
5472     jemalloc)
5473         # jemalloc by default does not use a prefix
5474         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5475     ;;
5476     tcmalloc)
5477         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5478         malloc_prefix=tc_
5479     ;;
5480 esac
5481
5482 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5483 check_func  ${malloc_prefix}memalign            && enable memalign
5484 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5485
5486 check_func  access
5487 check_func_headers stdlib.h arc4random
5488 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5489 check_func  fcntl
5490 check_func  fork
5491 check_func  gethrtime
5492 check_func  getopt
5493 check_func  getrusage
5494 check_func  gettimeofday
5495 check_func  isatty
5496 check_func  mach_absolute_time
5497 check_func  mkstemp
5498 check_func  mmap
5499 check_func  mprotect
5500 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5501 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5502 check_func  sched_getaffinity
5503 check_func  setrlimit
5504 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5505 check_func  strerror_r
5506 check_func  sysconf
5507 check_func  sysctl
5508 check_func  usleep
5509
5510 check_func_headers conio.h kbhit
5511 check_func_headers io.h setmode
5512 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5513 check_func_headers stdlib.h getenv
5514 check_func_headers sys/stat.h lstat
5515
5516 check_func_headers windows.h CoTaskMemFree -lole32
5517 check_func_headers windows.h GetProcessAffinityMask
5518 check_func_headers windows.h GetProcessTimes
5519 check_func_headers windows.h GetSystemTimeAsFileTime
5520 check_func_headers windows.h LoadLibrary
5521 check_func_headers windows.h MapViewOfFile
5522 check_func_headers windows.h PeekNamedPipe
5523 check_func_headers windows.h SetConsoleTextAttribute
5524 check_func_headers windows.h SetConsoleCtrlHandler
5525 check_func_headers windows.h Sleep
5526 check_func_headers windows.h VirtualAlloc
5527 check_struct windows.h "CONDITION_VARIABLE" Ptr
5528 check_func_headers glob.h glob
5529 enabled xlib &&
5530     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5531
5532 check_header AudioToolbox/AudioToolbox.h
5533 check_header direct.h
5534 check_header dirent.h
5535 check_header dlfcn.h
5536 check_header d3d11.h
5537 check_header dxva.h
5538 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5539 check_header io.h
5540 check_header libcrystalhd/libcrystalhd_if.h
5541 check_header mach/mach_time.h
5542 check_header malloc.h
5543 check_header net/udplite.h
5544 check_header poll.h
5545 check_header sys/mman.h
5546 check_header sys/param.h
5547 check_header sys/resource.h
5548 check_header sys/select.h
5549 check_header sys/time.h
5550 check_header sys/un.h
5551 check_header termios.h
5552 check_header unistd.h
5553 check_header valgrind/valgrind.h
5554 check_header vdpau/vdpau.h
5555 check_header vdpau/vdpau_x11.h
5556 check_header VideoDecodeAcceleration/VDADecoder.h
5557 check_header VideoToolbox/VideoToolbox.h
5558 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5559 enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo
5560 check_header windows.h
5561 check_header X11/extensions/XvMClib.h
5562 check_header asm/types.h
5563
5564 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5565 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5566 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5567 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5568
5569 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5570
5571 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5572 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5573 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5574 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5575 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5576
5577 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5578 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5579 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5580 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5581 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5582 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5583
5584 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5585
5586 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5587
5588 if ! disabled w32threads && ! enabled pthreads; then
5589     check_func_headers "windows.h process.h" _beginthreadex &&
5590         enable w32threads || disable w32threads
5591     if ! enabled w32threads && enabled winrt; then
5592         check_func_headers "windows.h" CreateThread &&
5593             enable w32threads || disable w32threads
5594     fi
5595 fi
5596
5597 # check for some common methods of building with pthread support
5598 # do this before the optional library checks as some of them require pthreads
5599 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5600     enable pthreads
5601     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5602         add_cflags -pthread
5603         add_extralibs -pthread
5604     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5605         add_cflags -pthreads
5606         add_extralibs -pthreads
5607     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5608         add_cflags -ldl -pthread
5609         add_extralibs -ldl -pthread
5610     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5611         add_extralibs -lpthreadGC2
5612     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5613         :
5614     elif ! check_func pthread_join && ! check_func pthread_create; then
5615         disable pthreads
5616     fi
5617     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5618 fi
5619
5620
5621 if enabled pthreads; then
5622   check_func pthread_cancel
5623 fi
5624
5625 enabled pthreads &&
5626     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
5627
5628 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5629 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5630 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5631
5632 check_lib math.h sin -lm && LIBM="-lm"
5633 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5634
5635 atan2f_args=2
5636 copysign_args=2
5637 hypot_args=2
5638 ldexpf_args=2
5639 powf_args=2
5640
5641 for func in $MATH_FUNCS; do
5642     eval check_mathfunc $func \${${func}_args:-1}
5643 done
5644
5645 for func in $COMPLEX_FUNCS; do
5646     eval check_complexfunc $func \${${func}_args:-1}
5647 done
5648
5649 # Enable CUVID by default if CUDA is enabled
5650 if enabled cuda && ! disabled cuvid; then
5651     enable cuvid
5652 fi
5653
5654 # these are off by default, so fail if requested and not available
5655 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5656 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5657                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5658 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5659                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5660                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5661 enabled cuda              && { check_lib cuda.h cuInit -lcuda ||
5662                                die "ERROR: CUDA not found"; }
5663 enabled cuvid             && { add_cflags -I$source_path;
5664                                check_lib "compat/cuda/cuviddec.h" cuvidCreateDecoder -lnvcuvid ||
5665                                die "ERROR: CUVID not found"; } &&
5666                              { enabled cuda ||
5667                                die "ERROR: CUVID requires CUDA"; }
5668 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5669 enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
5670 enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
5671 enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&
5672                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }
5673 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5674 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5675 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5676 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&
5677                                check_lib2 "dlfcn.h" dlopen -ldl; }
5678 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5679 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5680 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5681 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5682 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5683 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5684                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5685                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5686 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5687 enabled libebur128        && require ebur128 ebur128.h ebur128_relative_threshold -lebur128
5688 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5689                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5690                                  warn "using libfdk without pkg-config"; } }
5691 flite_libs="-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"
5692 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5693 enabled fontconfig        && enable libfontconfig
5694 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5695 enabled libfreetype       && require_libfreetype
5696 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5697 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5698 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5699                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5700                                done || die "ERROR: libgsm not found"; }
5701 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5702 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5703 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5704 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5705 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5706 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5707 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
5708 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5709 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5710 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5711                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
5712                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5713                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
5714 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5715 enabled libopenjpeg       && { { check_lib2 openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5716                                check_lib2 openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||
5717                                { check_lib2 openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5718                                { check_lib2 openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5719                                { check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5720                                die "ERROR: libopenjpeg not found"; }
5721 enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create
5722 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5723 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5724 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5725 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5726 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5727 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5728 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5729                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5730 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5731 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5732 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5733 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5734 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5735 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5736 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5737                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5738                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5739 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5740 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5741 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5742 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5743
5744 enabled libvpx            && {
5745     enabled libvpx_vp8_decoder && {
5746         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5747             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5748                 die "ERROR: libvpx decoder version must be >=0.9.1";
5749     }
5750     enabled libvpx_vp8_encoder && {
5751         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5752             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5753                 die "ERROR: libvpx encoder version must be >=0.9.7";
5754     }
5755     enabled libvpx_vp9_decoder && {
5756         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5757             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5758                 disable libvpx_vp9_decoder;
5759     }
5760     enabled libvpx_vp9_encoder && {
5761         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5762             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5763                 disable libvpx_vp9_encoder;
5764     }
5765     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5766         die "libvpx enabled but no supported decoders found"
5767     fi
5768 }
5769
5770 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5771 enabled libwebp           && {
5772     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5773     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5774 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5775                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5776                                  warn "using libx264 without pkg-config"; } } &&
5777                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5778                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5779                              { check_cpp_condition x264.h "X264_MPEG2" &&
5780                                enable libx262; }
5781 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5782                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||
5783                                die "ERROR: libx265 version must be >= 68."; }
5784 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5785 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5786 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5787 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5788 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
5789                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
5790                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
5791 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
5792 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5793                                 { ! enabled cross_compile && {
5794                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5795                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5796                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5797                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5798                                die "ERROR: mmal not found"; }
5799 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
5800
5801 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5802 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5803                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5804                                die "ERROR: openal not found"; } &&
5805                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5806                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5807 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5808                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5809                                die "ERROR: opencl not found"; } &&
5810                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5811                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5812                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5813 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5814                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5815                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5816                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5817                                die "ERROR: opengl not found."
5818                              }
5819 enabled omx_rpi && enable omx
5820 enabled omx               && { check_header OMX_Core.h ||
5821                                 { ! enabled cross_compile && enabled omx_rpi && {
5822                                     add_cflags -isystem/opt/vc/include/IL ; }
5823                                 check_header OMX_Core.h ; } ||
5824                                die "ERROR: OpenMAX IL headers not found"; }
5825 enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||
5826                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5827                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5828                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5829                                die "ERROR: openssl not found"; }
5830 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5831
5832 # libdc1394 check
5833 if enabled libdc1394; then
5834     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5835         enable libdc1394_2; } ||
5836     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5837         enable libdc1394_1; } ||
5838     die "ERROR: No version of libdc1394 found "
5839 fi
5840
5841 if enabled gcrypt; then
5842     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5843     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5844         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5845         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5846         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5847             die "ERROR: gcrypt not found"
5848         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5849     else
5850         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5851     fi
5852 fi
5853
5854 disabled sdl && disable sdl2
5855 if ! disabled sdl2; then
5856     SDL2_CONFIG="${cross_prefix}sdl2-config"
5857     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then
5858         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
5859         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
5860         check_func SDL_Init $sdl2_libs $sdl2_cflags && enable sdl2
5861     else
5862       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
5863         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
5864         sdl2_libs=$("${SDL2_CONFIG}" --libs)
5865         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
5866         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
5867         check_func SDL_Init $sdl2_libs $sdl2_cflags && enable sdl2
5868       fi
5869     fi
5870     if test $target_os = "mingw32"; then
5871         sdl2_libs="$sdl2_libs -mconsole"
5872     fi
5873 fi
5874 enabled sdl2 && add_cflags $sdl2_cflags && add_extralibs $sdl2_libs
5875
5876 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5877     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5878     enable securetransport; }
5879
5880 disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
5881                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }
5882
5883 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5884 enabled makeinfo \
5885     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5886     && enable makeinfo_html || disable makeinfo_html
5887 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5888 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5889 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5890 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5891
5892 check_header linux/fb.h
5893 check_header linux/videodev.h
5894 check_header linux/videodev2.h
5895 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5896
5897 check_header sys/videoio.h
5898 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5899
5900 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5901 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5902 # w32api 3.12 had it defined wrong
5903 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5904
5905 check_type "dshow.h" IBaseFilter
5906
5907 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5908 { check_header dev/bktr/ioctl_meteor.h &&
5909   check_header dev/bktr/ioctl_bt848.h; } ||
5910 { check_header machine/ioctl_meteor.h &&
5911   check_header machine/ioctl_bt848.h; } ||
5912 { check_header dev/video/meteor/ioctl_meteor.h &&
5913   check_header dev/video/bktr/ioctl_bt848.h; } ||
5914 check_header dev/ic/bt8xx.h
5915
5916 check_header sndio.h
5917 if check_struct sys/soundcard.h audio_buf_info bytes; then
5918     enable_safe sys/soundcard.h
5919 else
5920     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5921     #include <sys/soundcard.h>
5922     audio_buf_info abc;
5923 EOF
5924 fi
5925 check_header soundcard.h
5926
5927 enabled_any alsa_indev alsa_outdev &&
5928     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5929
5930 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
5931     check_func jack_port_get_latency_range -ljack
5932
5933 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5934
5935 if enabled libcdio; then
5936     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5937     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5938     die "ERROR: No usable libcdio/cdparanoia found"
5939 fi
5940
5941 enabled xlib &&
5942     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5943
5944 if ! disabled libxcb; then
5945     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5946         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5947     } && disable x11grab && enable libxcb
5948
5949 if enabled libxcb; then
5950     disabled libxcb_shm || {
5951         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5952             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5953         } && check_header sys/shm.h && enable libxcb_shm; }
5954
5955     disabled libxcb_xfixes || {
5956         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5957             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5958         } && enable libxcb_xfixes; }
5959
5960     disabled libxcb_shape || {
5961         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5962             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5963         } && enable libxcb_shape; }
5964
5965     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5966     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5967 fi
5968 fi
5969
5970 if enabled x11grab; then
5971     enabled xlib || die "ERROR: Xlib not found"
5972     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5973     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5974 fi
5975
5976 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5977
5978 enabled dxva2api_h &&
5979     check_cc <<EOF && enable dxva2api_cobj
5980 #define _WIN32_WINNT 0x0600
5981 #define COBJMACROS
5982 #include <windows.h>
5983 #include <d3d9.h>
5984 #include <dxva2api.h>
5985 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5986 EOF
5987
5988 enabled vaapi &&
5989     check_lib va/va.h vaInitialize -lva ||
5990     disable vaapi
5991
5992 enabled vaapi &&
5993     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
5994     disable vaapi
5995
5996 if enabled vaapi ; then
5997     enabled xlib &&
5998     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5999     enable vaapi_x11
6000
6001     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
6002     enable vaapi_drm
6003 fi
6004
6005 enabled vdpau &&
6006     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
6007     disable vdpau
6008
6009 enabled vdpau && enabled xlib &&
6010     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
6011     enable vdpau_x11
6012
6013 if enabled x86; then
6014     case $target_os in
6015         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6016             ;;
6017         *)
6018             disable nvenc
6019             ;;
6020     esac
6021 else
6022     disable nvenc
6023 fi
6024
6025 enabled nvenc &&
6026     check_cc -I$source_path <<EOF || disable nvenc
6027 #include "compat/nvenc/nvEncodeAPI.h"
6028 NV_ENCODE_API_FUNCTION_LIST flist;
6029 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6030 int main(void) { return 0; }
6031 EOF
6032
6033 # Funny iconv installations are not unusual, so check it after all flags have been set
6034 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
6035
6036 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6037
6038 # add some useful compiler flags if supported
6039 check_cflags -Wdeclaration-after-statement
6040 check_cflags -Wall
6041 check_cflags -Wdisabled-optimization
6042 check_cflags -Wpointer-arith
6043 check_cflags -Wredundant-decls
6044 check_cflags -Wwrite-strings
6045 check_cflags -Wtype-limits
6046 check_cflags -Wundef
6047 check_cflags -Wmissing-prototypes
6048 check_cflags -Wno-pointer-to-int-cast
6049 check_cflags -Wstrict-prototypes
6050 check_cflags -Wempty-body
6051 enabled extra_warnings && check_cflags -Winline
6052 enabled extra_warnings && check_cflags -Wcast-qual
6053
6054 check_disable_warning(){
6055     warning_flag=-W${1#-Wno-}
6056     test_cflags $warning_flag && add_cflags $1
6057 }
6058
6059 check_disable_warning -Wno-parentheses
6060 check_disable_warning -Wno-switch
6061 check_disable_warning -Wno-format-zero-length
6062 check_disable_warning -Wno-pointer-sign
6063 check_disable_warning -Wno-unused-const-variable
6064
6065 # add some linker flags
6066 check_ldflags -Wl,--warn-common
6067 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6068 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
6069 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
6070 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6071
6072 # add some strip flags
6073 # -wN '..@*' is more selective than -x, but not available everywhere.
6074 check_stripflags -wN \'..@*\' || check_stripflags -x
6075
6076 enabled neon_clobber_test &&
6077     check_ldflags -Wl,--wrap,avcodec_open2              \
6078                   -Wl,--wrap,avcodec_decode_audio4      \
6079                   -Wl,--wrap,avcodec_decode_video2      \
6080                   -Wl,--wrap,avcodec_decode_subtitle2   \
6081                   -Wl,--wrap,avcodec_encode_audio2      \
6082                   -Wl,--wrap,avcodec_encode_video2      \
6083                   -Wl,--wrap,avcodec_send_packet        \
6084                   -Wl,--wrap,avcodec_receive_frame      \
6085                   -Wl,--wrap,avcodec_send_frame         \
6086                   -Wl,--wrap,avcodec_receive_packet     \
6087                   -Wl,--wrap,avcodec_encode_subtitle    \
6088                   -Wl,--wrap,swr_convert                \
6089                   -Wl,--wrap,avresample_convert ||
6090     disable neon_clobber_test
6091
6092 enabled xmm_clobber_test &&
6093     check_ldflags -Wl,--wrap,avcodec_open2              \
6094                   -Wl,--wrap,avcodec_decode_audio4      \
6095                   -Wl,--wrap,avcodec_decode_video2      \
6096                   -Wl,--wrap,avcodec_decode_subtitle2   \
6097                   -Wl,--wrap,avcodec_encode_audio2      \
6098                   -Wl,--wrap,avcodec_encode_video2      \
6099                   -Wl,--wrap,avcodec_encode_subtitle    \
6100                   -Wl,--wrap,avcodec_send_packet        \
6101                   -Wl,--wrap,avcodec_receive_frame      \
6102                   -Wl,--wrap,avcodec_send_frame         \
6103                   -Wl,--wrap,avcodec_receive_packet     \
6104                   -Wl,--wrap,swr_convert                \
6105                   -Wl,--wrap,avresample_convert         \
6106                   -Wl,--wrap,sws_scale ||
6107     disable xmm_clobber_test
6108
6109 check_ld "cc" <<EOF && enable proper_dce
6110 extern const int array[512];
6111 static inline int func(void) { return array[0]; }
6112 int main(void) { return 0; }
6113 EOF
6114
6115 if enabled proper_dce; then
6116     echo "X { local: *; };" > $TMPV
6117     if test_ldflags -Wl,${version_script},$TMPV; then
6118         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6119         check_cc <<EOF && enable symver_asm_label
6120 void ff_foo(void) __asm__ ("av_foo@VERSION");
6121 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6122 EOF
6123         check_cc <<EOF && enable symver_gnu_asm
6124 __asm__(".symver ff_foo,av_foo@VERSION");
6125 void ff_foo(void) {}
6126 EOF
6127     fi
6128 fi
6129
6130 if [ -z "$optflags" ]; then
6131     if enabled small; then
6132         optflags=$cflags_size
6133     elif enabled optimizations; then
6134         optflags=$cflags_speed
6135     else
6136         optflags=$cflags_noopt
6137     fi
6138 fi
6139
6140 check_optflags(){
6141     check_cflags "$@"
6142     enabled lto && check_ldflags "$@"
6143 }
6144
6145
6146 if enabled lto; then
6147     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6148     check_cflags  -flto
6149     check_ldflags -flto $cpuflags
6150     disable inline_asm_direct_symbol_refs
6151 fi
6152
6153 check_optflags $optflags
6154 check_optflags -fno-math-errno
6155 check_optflags -fno-signed-zeros
6156
6157 enabled ftrapv && check_cflags -ftrapv
6158
6159 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6160 int x;
6161 EOF
6162
6163
6164 if enabled icc; then
6165     # Just warnings, no remarks
6166     check_cflags -w1
6167     # -wd: Disable following warnings
6168     # 144, 167, 556: -Wno-pointer-sign
6169     # 188: enumerated type mixed with another type
6170     # 1292: attribute "foo" ignored
6171     # 1419: external declaration in primary source file
6172     # 10006: ignoring unknown option -fno-signed-zeros
6173     # 10148: ignoring unknown option -Wno-parentheses
6174     # 10156: ignoring option '-W'; no argument required
6175     # 13200: No EMMS instruction before call to function
6176     # 13203: No EMMS instruction before return from function
6177     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6178     # 11030: Warning unknown option --as-needed
6179     # 10156: ignoring option '-export'; no argument required
6180     check_ldflags -wd10156,11030
6181     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6182     enable ebp_available
6183     # The test above does not test linking
6184     enabled lto && disable symver_asm_label
6185     if enabled x86_32; then
6186         icc_version=$($cc -dumpversion)
6187         test ${icc_version%%.*} -ge 11 &&
6188             check_cflags -falign-stack=maintain-16-byte ||
6189             disable aligned_stack
6190     fi
6191 elif enabled ccc; then
6192     # disable some annoying warnings
6193     add_cflags -msg_disable bitnotint
6194     add_cflags -msg_disable mixfuncvoid
6195     add_cflags -msg_disable nonstandcast
6196     add_cflags -msg_disable unsupieee
6197 elif enabled gcc; then
6198     check_optflags -fno-tree-vectorize
6199     check_cflags -Werror=format-security
6200     check_cflags -Werror=implicit-function-declaration
6201     check_cflags -Werror=missing-prototypes
6202     check_cflags -Werror=return-type
6203     check_cflags -Werror=vla
6204     check_cflags -Wformat
6205     check_cflags -fdiagnostics-color=auto
6206     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6207 elif enabled llvm_gcc; then
6208     check_cflags -mllvm -stack-alignment=16
6209 elif enabled clang; then
6210     check_cflags -mllvm -stack-alignment=16
6211     check_cflags -mstack-alignment=16
6212     check_cflags -Qunused-arguments
6213     check_cflags -Werror=implicit-function-declaration
6214     check_cflags -Werror=missing-prototypes
6215     check_cflags -Werror=return-type
6216 elif enabled cparser; then
6217     add_cflags -Wno-missing-variable-declarations
6218     add_cflags -Wno-empty-statement
6219 elif enabled armcc; then
6220     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6221     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6222     # 2523: use of inline assembly is deprecated
6223     add_cflags -W${armcc_opt},--diag_suppress=2523
6224     add_cflags -W${armcc_opt},--diag_suppress=1207
6225     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6226     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6227     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6228     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6229 elif enabled tms470; then
6230     add_cflags -pds=824 -pds=837
6231     disable inline_asm
6232 elif enabled pathscale; then
6233     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6234 elif enabled_any msvc icl; then
6235     enabled x86_32 && disable aligned_stack
6236     enabled_all x86_32 debug && add_cflags -Oy-
6237     enabled debug && add_ldflags -debug
6238     enable pragma_deprecated
6239     if enabled icl; then
6240         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6241         # (correctly) on icl 13.x.
6242         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6243             add_cflags -Qansi-alias
6244         # Some inline asm is not compilable in debug
6245         if enabled debug; then
6246             disable ebp_available
6247             disable ebx_available
6248         fi
6249     fi
6250     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6251     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6252     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6253     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6254     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6255     # MSVC 2013 and newer can handle it fine.
6256     # If this declspec fails, force including stdlib.h before the restrict redefinition
6257     # happens in config.h.
6258     if [ $_restrict != restrict ]; then
6259         check_cc <<EOF || add_cflags -FIstdlib.h
6260 __declspec($_restrict) void* foo(int);
6261 EOF
6262     fi
6263     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
6264     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6265     # this flag should be re-checked on newer compiler releases and put under a
6266     # version check once its fixed
6267     check_cflags -d2SSAOptimizer-
6268 fi
6269
6270 for pfx in "" host_; do
6271     varname=${pfx%_}cc_type
6272     eval "type=\$$varname"
6273     if [ $type = "msvc" ]; then
6274         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6275 static inline int foo(int a) { return a; }
6276 EOF
6277     fi
6278 done
6279
6280 case $as_type in
6281     clang)
6282         add_asflags -Qunused-arguments
6283     ;;
6284 esac
6285
6286 case $ld_type in
6287     clang)
6288         check_ldflags -Qunused-arguments
6289     ;;
6290 esac
6291
6292 case $target_os in
6293     osf1)
6294         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6295     ;;
6296     plan9)
6297         add_cppflags -Dmain=plan9_main
6298     ;;
6299 esac
6300
6301 enable frame_thread_encoder
6302
6303 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6304
6305 check_deps $CONFIG_LIST       \
6306            $CONFIG_EXTRA      \
6307            $HAVE_LIST         \
6308            $ALL_COMPONENTS    \
6309
6310 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"
6311
6312
6313 if test $target_os = "haiku"; then
6314     disable memalign
6315     disable posix_memalign
6316 fi
6317
6318 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6319     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6320     enable dxva2_lib
6321
6322 ! enabled_any memalign posix_memalign aligned_malloc &&
6323     enabled simd_align_16 && enable memalign_hack
6324
6325 # add_dep lib dep
6326 # -> enable ${lib}_deps_${dep}
6327 # -> add $dep to ${lib}_deps only once
6328 add_dep() {
6329     lib=$1
6330     dep=$2
6331     enabled "${lib}_deps_${dep}" && return 0
6332     enable  "${lib}_deps_${dep}"
6333     prepend "${lib}_deps" $dep
6334 }
6335
6336 # merge deps lib components
6337 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6338 merge_deps() {
6339     lib=$1
6340     shift
6341     for comp in $*; do
6342         enabled $comp || continue
6343         eval "dep=\"\$${comp}_deps\""
6344         for d in $dep; do
6345             add_dep $lib $d
6346         done
6347     done
6348 }
6349
6350 merge_deps libavfilter $FILTER_LIST
6351
6352 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6353
6354 for thread in $THREADS_LIST; do
6355     if enabled $thread; then
6356         test -n "$thread_type" &&
6357             die "ERROR: Only one thread type must be selected." ||
6358             thread_type="$thread"
6359     fi
6360 done
6361
6362 enabled zlib && add_cppflags -DZLIB_CONST
6363
6364 # conditional library dependencies, in linking order
6365 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6366 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6367 enabled aresample_filter    && prepend avfilter_deps "swresample"
6368 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6369 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6370 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6371 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6372 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6373 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6374 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6375 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6376 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6377 enabled pan_filter          && prepend avfilter_deps "swresample"
6378 enabled pp_filter           && prepend avfilter_deps "postproc"
6379 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6380 enabled resample_filter && prepend avfilter_deps "avresample"
6381 enabled sab_filter          && prepend avfilter_deps "swscale"
6382 enabled scale_filter    && prepend avfilter_deps "swscale"
6383 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6384 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6385 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6386 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6387 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6388 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6389 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6390 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6391 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6392
6393 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6394
6395 enabled opus_decoder    && prepend avcodec_deps "swresample"
6396
6397 expand_deps(){
6398     lib_deps=${1}_deps
6399     eval "deps=\$$lib_deps"
6400     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6401     unique $lib_deps
6402 }
6403
6404 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6405 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6406
6407 map 'expand_deps $v' $LIBRARY_LIST
6408
6409 echo "install prefix            $prefix"
6410 echo "source path               $source_path"
6411 echo "C compiler                $cc"
6412 echo "C library                 $libc_type"
6413 if test "$host_cc" != "$cc"; then
6414     echo "host C compiler           $host_cc"
6415     echo "host C library            $host_libc_type"
6416 fi
6417 echo "ARCH                      $arch ($cpu)"
6418 if test "$build_suffix" != ""; then
6419     echo "build suffix              $build_suffix"
6420 fi
6421 if test "$progs_suffix" != ""; then
6422     echo "progs suffix              $progs_suffix"
6423 fi
6424 if test "$extra_version" != ""; then
6425     echo "version string suffix     $extra_version"
6426 fi
6427 echo "big-endian                ${bigendian-no}"
6428 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6429 if enabled x86; then
6430     echo "${yasmexe}                      ${yasm-no}"
6431     echo "MMX enabled               ${mmx-no}"
6432     echo "MMXEXT enabled            ${mmxext-no}"
6433     echo "3DNow! enabled            ${amd3dnow-no}"
6434     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6435     echo "SSE enabled               ${sse-no}"
6436     echo "SSSE3 enabled             ${ssse3-no}"
6437     echo "AESNI enabled             ${aesni-no}"
6438     echo "AVX enabled               ${avx-no}"
6439     echo "XOP enabled               ${xop-no}"
6440     echo "FMA3 enabled              ${fma3-no}"
6441     echo "FMA4 enabled              ${fma4-no}"
6442     echo "i686 features enabled     ${i686-no}"
6443     echo "CMOV is fast              ${fast_cmov-no}"
6444     echo "EBX available             ${ebx_available-no}"
6445     echo "EBP available             ${ebp_available-no}"
6446 fi
6447 if enabled aarch64; then
6448     echo "NEON enabled              ${neon-no}"
6449     echo "VFP enabled               ${vfp-no}"
6450 fi
6451 if enabled arm; then
6452     echo "ARMv5TE enabled           ${armv5te-no}"
6453     echo "ARMv6 enabled             ${armv6-no}"
6454     echo "ARMv6T2 enabled           ${armv6t2-no}"
6455     echo "VFP enabled               ${vfp-no}"
6456     echo "NEON enabled              ${neon-no}"
6457     echo "THUMB enabled             ${thumb-no}"
6458 fi
6459 if enabled mips; then
6460     echo "MIPS FPU enabled          ${mipsfpu-no}"
6461     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6462     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6463     echo "MIPS MSA enabled          ${msa-no}"
6464     echo "LOONGSON MMI enabled      ${mmi-no}"
6465 fi
6466 if enabled ppc; then
6467     echo "AltiVec enabled           ${altivec-no}"
6468     echo "VSX enabled               ${vsx-no}"
6469     echo "POWER8 enabled            ${power8-no}"
6470     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6471     echo "dcbzl available           ${dcbzl-no}"
6472 fi
6473 echo "debug symbols             ${debug-no}"
6474 echo "strip symbols             ${stripping-no}"
6475 echo "optimize for size         ${small-no}"
6476 echo "optimizations             ${optimizations-no}"
6477 echo "static                    ${static-no}"
6478 echo "shared                    ${shared-no}"
6479 echo "postprocessing support    ${postproc-no}"
6480 echo "new filter support        ${avfilter-no}"
6481 echo "network support           ${network-no}"
6482 echo "threading support         ${thread_type-no}"
6483 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6484 echo "SDL2 support              ${sdl2-no}"
6485 echo "opencl enabled            ${opencl-no}"
6486 echo "JNI support               ${jni-no}"
6487 echo "texi2html enabled         ${texi2html-no}"
6488 echo "perl enabled              ${perl-no}"
6489 echo "pod2man enabled           ${pod2man-no}"
6490 echo "makeinfo enabled          ${makeinfo-no}"
6491 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6492 test -n "$random_seed" &&
6493     echo "random seed               ${random_seed}"
6494 echo
6495
6496 echo "Enabled programs:"
6497 print_enabled '' $PROGRAM_LIST | print_in_columns
6498 echo
6499
6500 echo "External libraries:"
6501 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6502 echo
6503
6504 echo "External libraries providing hardware acceleration:"
6505 print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns
6506 echo
6507
6508 echo "Libraries:"
6509 print_enabled '' $LIBRARY_LIST | print_in_columns
6510 echo
6511
6512 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6513     echo "Enabled ${type}s:"
6514     eval list=\$$(toupper $type)_LIST
6515     print_enabled '_*' $list | print_in_columns
6516     echo
6517 done
6518
6519 license="LGPL version 2.1 or later"
6520 if enabled nonfree; then
6521     license="nonfree and unredistributable"
6522 elif enabled gplv3; then
6523     license="GPL version 3 or later"
6524 elif enabled lgplv3; then
6525     license="LGPL version 3 or later"
6526 elif enabled gpl; then
6527     license="GPL version 2 or later"
6528 fi
6529
6530 echo "License: $license"
6531
6532 echo "Creating config.mak, config.h, and doc/config.texi..."
6533
6534 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6535
6536 enabled stripping || strip="echo skipping strip"
6537
6538 config_files="$TMPH config.mak doc/config.texi"
6539
6540 cat > config.mak <<EOF
6541 # Automatically generated by configure - do not modify!
6542 ifndef FFMPEG_CONFIG_MAK
6543 FFMPEG_CONFIG_MAK=1
6544 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6545 prefix=$prefix
6546 LIBDIR=\$(DESTDIR)$libdir
6547 SHLIBDIR=\$(DESTDIR)$shlibdir
6548 INCDIR=\$(DESTDIR)$incdir
6549 BINDIR=\$(DESTDIR)$bindir
6550 DATADIR=\$(DESTDIR)$datadir
6551 DOCDIR=\$(DESTDIR)$docdir
6552 MANDIR=\$(DESTDIR)$mandir
6553 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6554 INSTALL_NAME_DIR=$install_name_dir
6555 SRC_PATH=$source_path
6556 SRC_LINK=$source_link
6557 ifndef MAIN_MAKEFILE
6558 SRC_PATH:=\$(SRC_PATH:.%=..%)
6559 endif
6560 CC_IDENT=$cc_ident
6561 ARCH=$arch
6562 INTRINSICS=$intrinsics
6563 CC=$cc
6564 CXX=$cxx
6565 AS=$as
6566 OBJCC=$objcc
6567 LD=$ld
6568 DEPCC=$dep_cc
6569 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6570 DEPAS=$as
6571 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6572 YASM=$yasmexe
6573 DEPYASM=$yasmexe
6574 AR=$ar
6575 ARFLAGS=$arflags
6576 AR_O=$ar_o
6577 RANLIB=$ranlib
6578 STRIP=$strip
6579 CP=cp -p
6580 LN_S=$ln_s
6581 CPPFLAGS=$CPPFLAGS
6582 CFLAGS=$CFLAGS
6583 CXXFLAGS=$CXXFLAGS
6584 OBJCFLAGS=$OBJCFLAGS
6585 ASFLAGS=$ASFLAGS
6586 AS_C=$AS_C
6587 AS_O=$AS_O
6588 OBJCC_C=$OBJCC_C
6589 OBJCC_E=$OBJCC_E
6590 OBJCC_O=$OBJCC_O
6591 CC_C=$CC_C
6592 CC_E=$CC_E
6593 CC_O=$CC_O
6594 CXX_C=$CXX_C
6595 CXX_O=$CXX_O
6596 LD_O=$LD_O
6597 LD_LIB=$LD_LIB
6598 LD_PATH=$LD_PATH
6599 DLLTOOL=$dlltool
6600 WINDRES=$windres
6601 DEPWINDRES=$dep_cc
6602 DOXYGEN=$doxygen
6603 LDFLAGS=$LDFLAGS
6604 LDEXEFLAGS=$LDEXEFLAGS
6605 LDLIBFLAGS=$LDLIBFLAGS
6606 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6607 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6608 YASMFLAGS=$YASMFLAGS
6609 BUILDSUF=$build_suffix
6610 PROGSSUF=$progs_suffix
6611 FULLNAME=$FULLNAME
6612 LIBPREF=$LIBPREF
6613 LIBSUF=$LIBSUF
6614 LIBNAME=$LIBNAME
6615 SLIBPREF=$SLIBPREF
6616 SLIBSUF=$SLIBSUF
6617 EXESUF=$EXESUF
6618 EXTRA_VERSION=$extra_version
6619 CCDEP=$CCDEP
6620 CXXDEP=$CXXDEP
6621 CCDEP_FLAGS=$CCDEP_FLAGS
6622 ASDEP=$ASDEP
6623 ASDEP_FLAGS=$ASDEP_FLAGS
6624 CC_DEPFLAGS=$CC_DEPFLAGS
6625 AS_DEPFLAGS=$AS_DEPFLAGS
6626 HOSTCC=$host_cc
6627 HOSTLD=$host_ld
6628 HOSTCFLAGS=$host_cflags
6629 HOSTCPPFLAGS=$host_cppflags
6630 HOSTEXESUF=$HOSTEXESUF
6631 HOSTLDFLAGS=$host_ldflags
6632 HOSTLIBS=$host_libs
6633 DEPHOSTCC=$host_cc
6634 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6635 HOSTCCDEP=$HOSTCCDEP
6636 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6637 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6638 HOSTCC_C=$HOSTCC_C
6639 HOSTCC_O=$HOSTCC_O
6640 HOSTLD_O=$HOSTLD_O
6641 TARGET_EXEC=$target_exec $target_exec_args
6642 TARGET_PATH=$target_path
6643 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6644 CFLAGS-ffplay=${sdl2_cflags}
6645 ZLIB=$($ldflags_filter -lz)
6646 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6647 EXTRALIBS=$extralibs
6648 COMPAT_OBJS=$compat_objs
6649 EXEOBJS=$exeobjs
6650 INSTALL=$install
6651 LIBTARGET=${LIBTARGET}
6652 SLIBNAME=${SLIBNAME}
6653 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6654 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6655 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6656 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6657 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6658 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6659 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6660 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6661 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
6662 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6663 NOREDZONE_FLAGS=$noredzone_flags
6664 EOF
6665
6666 get_version(){
6667     lcname=lib${1}
6668     name=$(toupper $lcname)
6669     file=$source_path/$lcname/version.h
6670     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6671     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6672     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6673     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6674     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6675     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6676 }
6677
6678 map 'get_version $v' $LIBRARY_LIST
6679
6680 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6681
6682 print_program_libs(){
6683     eval "program_libs=\$${1}_libs"
6684     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6685 }
6686
6687 map 'print_program_libs $v' $PROGRAM_LIST
6688
6689 cat > $TMPH <<EOF
6690 /* Automatically generated by configure - do not modify! */
6691 #ifndef FFMPEG_CONFIG_H
6692 #define FFMPEG_CONFIG_H
6693 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6694 #define FFMPEG_LICENSE "$(c_escape $license)"
6695 #define CONFIG_THIS_YEAR 2016
6696 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6697 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6698 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6699 #define av_restrict $_restrict
6700 #define EXTERN_PREFIX "${extern_prefix}"
6701 #define EXTERN_ASM ${extern_prefix}
6702 #define BUILDSUF "$build_suffix"
6703 #define SLIBSUF "$SLIBSUF"
6704 #define HAVE_MMX2 HAVE_MMXEXT
6705 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6706 EOF
6707
6708 test -n "$assert_level" &&
6709     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6710
6711 test -n "$malloc_prefix" &&
6712     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6713
6714 if enabled yasm; then
6715     append config_files $TMPASM
6716     printf '' >$TMPASM
6717 fi
6718
6719 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6720
6721
6722 mkdir -p doc
6723 mkdir -p tests
6724 mkdir -p tests/api
6725 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6726
6727 print_config ARCH_   "$config_files" $ARCH_LIST
6728 print_config HAVE_   "$config_files" $HAVE_LIST
6729 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6730                                      $CONFIG_EXTRA      \
6731                                      $ALL_COMPONENTS    \
6732
6733 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6734 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6735
6736 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6737 cp_if_changed $TMPH config.h
6738 touch .config
6739
6740 enabled yasm && cp_if_changed $TMPASM config.asm
6741
6742 cat > $TMPH <<EOF
6743 /* Generated by ffconf */
6744 #ifndef AVUTIL_AVCONFIG_H
6745 #define AVUTIL_AVCONFIG_H
6746 EOF
6747
6748 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6749
6750 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6751
6752 cp_if_changed $TMPH libavutil/avconfig.h
6753
6754 if test -n "$WARNINGS"; then
6755     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6756     enabled fatal_warnings && exit 1
6757 fi
6758
6759 # generate the lists of enabled components
6760 print_enabled_components(){
6761     file=$1
6762     struct_name=$2
6763     name=$3
6764     shift 3
6765     echo "static const $struct_name *$name[] = {" > $TMPH
6766     for c in $*; do
6767         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
6768     done
6769     echo "    NULL };" >> $TMPH
6770     cp_if_changed $TMPH $file
6771 }
6772
6773 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
6774 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
6775
6776 # build pkg-config files
6777
6778 lib_version(){
6779     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6780 }
6781
6782 pkgconfig_generate(){
6783     name=$1
6784     shortname=${name#lib}${build_suffix}
6785     comment=$2
6786     version=$3
6787     libs=$4
6788     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6789     requires=${requires%, }
6790     enabled ${name#lib} || return 0
6791     mkdir -p $name
6792     cat <<EOF > $name/$name${build_suffix}.pc
6793 prefix=$prefix
6794 exec_prefix=\${prefix}
6795 libdir=$libdir
6796 includedir=$incdir
6797
6798 Name: $name
6799 Description: $comment
6800 Version: $version
6801 Requires: $(enabled shared || echo $requires)
6802 Requires.private: $(enabled shared && echo $requires)
6803 Conflicts:
6804 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6805 Libs.private: $(enabled shared && echo $libs)
6806 Cflags: -I\${includedir}
6807 EOF
6808
6809 mkdir -p doc/examples/pc-uninstalled
6810 includedir=${source_path}
6811 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6812     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6813 prefix=
6814 exec_prefix=
6815 libdir=\${pcfiledir}/../../../$name
6816 includedir=${includedir}
6817
6818 Name: $name
6819 Description: $comment
6820 Version: $version
6821 Requires: $requires
6822 Conflicts:
6823 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6824 Cflags: -I\${includedir}
6825 EOF
6826 }
6827
6828 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6829 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6830 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6831 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6832 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6833 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6834 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6835 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6836 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"