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-raise-major     increase major version numbers in sonames [no]
 112
 113 Program options:
 114   --disable-programs       do not build command line programs
 115   --disable-ffmpeg         disable ffmpeg build
 116   --disable-ffplay         disable ffplay build
 117   --disable-ffprobe        disable ffprobe build
 118   --disable-ffserver       disable ffserver build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189
 190   Using any of the following switches will allow FFmpeg to link to the
 191   corresponding external library. All the components depending on that library
 192   will become enabled, if all their other dependencies are met and they are not
 193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 194   libwavpack and allow the libwavpack encoder to be built, unless it is
 195   specifically disabled with --disable-encoder=libwavpack.
 196
 197   Note that only the system libraries are auto-detected. All the other external
 198   libraries must be explicitly enabled.
 199
 200   Also note that the following help text describes the purpose of the libraries
 201   themselves, not all their features will necessarily be usable by FFmpeg.
 202
 203   --enable-avisynth        enable reading of AviSynth script files [no]
 204   --disable-bzlib          disable bzlib [autodetect]
 205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 206   --enable-frei0r          enable frei0r video filtering [no]
 207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 208                            if openssl, librtmp or gmp is not used [no]
 209   --enable-gmp             enable gmp, needed for rtmp(t)e support
 210                            if openssl or librtmp is not used [no]
 211   --enable-gnutls          enable gnutls, needed for https support
 212                            if openssl is not used [no]
 213   --disable-iconv          disable iconv [autodetect]
 214   --enable-jni             enable JNI support [no]
 215   --enable-ladspa          enable LADSPA audio filtering [no]
 216   --enable-libass          enable libass subtitles rendering,
 217                            needed for subtitles and ass filter [no]
 218   --enable-libbluray       enable BluRay reading using libbluray [no]
 219   --enable-libbs2b         enable bs2b DSP library [no]
 220   --enable-libcaca         enable textual display using libcaca [no]
 221   --enable-libcelt         enable CELT decoding via libcelt [no]
 222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 224                            and libraw1394 [no]
 225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 230   --enable-libgme          enable Game Music Emu via libgme [no]
 231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 235   --enable-libmodplug      enable ModPlug via libmodplug [no]
 236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 237   --enable-libnut          enable NUT (de)muxing via libnut,
 238                            native (de)muxer exists [no]
 239   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 240   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 241   --enable-libopencv       enable video filtering via libopencv [no]
 242   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 243   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 244   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 245   --enable-libopus         enable Opus de/encoding via libopus [no]
 246   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 247   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 248   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 249   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 250   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 251   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 252   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 253   --enable-libsoxr         enable Include libsoxr resampling [no]
 254   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 255   --enable-libssh          enable SFTP protocol via libssh [no]
 256   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 257   --enable-libtheora       enable Theora encoding via libtheora [no]
 258   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 259   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 260   --enable-libvidstab      enable video stabilization using vid.stab [no]
 261   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 262   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 263                            native implementation exists [no]
 264   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 265   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 266   --enable-libwebp         enable WebP encoding via libwebp [no]
 267   --enable-libx264         enable H.264 encoding via x264 [no]
 268   --enable-libx265         enable HEVC encoding via x265 [no]
 269   --enable-libxavs         enable AVS encoding via xavs [no]
 270   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 271   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 272   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 273   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 274   --enable-libxvid         enable Xvid encoding via xvidcore,
 275                            native MPEG-4/Xvid encoder exists [no]
 276   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 277   --enable-libzmq          enable message passing via libzmq [no]
 278   --enable-libzvbi         enable teletext support via libzvbi [no]
 279   --disable-lzma           disable lzma [autodetect]
 280   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 281   --enable-mediacodec      enable Android MediaCodec support [no]
 282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 283   --enable-openal          enable OpenAL 1.1 capture support [no]
 284   --enable-opencl          enable OpenCL code
 285   --enable-opengl          enable OpenGL rendering [no]
 286   --enable-openssl         enable openssl, needed for https support
 287                            if gnutls is not used [no]
 288   --disable-schannel       disable SChannel SSP, needed for TLS support on
 289                            Windows if openssl and gnutls are not used [autodetect]
 290   --disable-sdl2           disable sdl2 [autodetect]
 291   --disable-securetransport disable Secure Transport, needed for TLS support
 292                            on OSX if openssl and gnutls are not used [autodetect]
 293   --enable-x11grab         enable X11 grabbing (legacy) [no]
 294   --disable-xlib           disable xlib [autodetect]
 295   --disable-zlib           disable zlib [autodetect]
 296
 297   The following libraries provide various hardware acceleration features:
 298   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 299   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
 300   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 301   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 302   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 303   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 304   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 305   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 306   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 307   --enable-omx             enable OpenMAX IL code [no]
 308   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 309   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 310   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
 311   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 312   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 313
 314 Toolchain options:
 315   --arch=ARCH              select architecture [$arch]
 316   --cpu=CPU                select the minimum required CPU (affects
 317                            instruction selection, may crash on older CPUs)
 318   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 319   --progs-suffix=SUFFIX    program name suffix []
 320   --enable-cross-compile   assume a cross-compiler is used
 321   --sysroot=PATH           root of cross-build tree
 322   --sysinclude=PATH        location of cross-build system headers
 323   --target-os=OS           compiler targets OS [$target_os]
 324   --target-exec=CMD        command to run executables on target
 325   --target-path=DIR        path to view of build directory on target
 326   --target-samples=DIR     path to samples directory on target
 327   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 328   --toolchain=NAME         set tool defaults according to NAME
 329   --nm=NM                  use nm tool NM [$nm_default]
 330   --ar=AR                  use archive tool AR [$ar_default]
 331   --as=AS                  use assembler AS [$as_default]
 332   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 333   --strip=STRIP            use strip tool STRIP [$strip_default]
 334   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 335   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 336   --cc=CC                  use C compiler CC [$cc_default]
 337   --cxx=CXX                use C compiler CXX [$cxx_default]
 338   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 339   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 340   --ld=LD                  use linker LD [$ld_default]
 341   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 342   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 343   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 344   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 345   --host-cc=HOSTCC         use host C compiler HOSTCC
 346   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 347   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 348   --host-ld=HOSTLD         use host linker HOSTLD
 349   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 350   --host-libs=HLIBS        use libs HLIBS when linking for host
 351   --host-os=OS             compiler host OS [$target_os]
 352   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 353   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 354   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 355   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 356   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 357   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 358   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 359   --extra-version=STRING   version string suffix []
 360   --optflags=OPTFLAGS      override optimization-related compiler flags
 361   --build-suffix=SUFFIX    library name suffix []
 362   --enable-pic             build position-independent code
 363   --enable-thumb           compile for Thumb instruction set
 364   --enable-lto             use link-time optimization
 365   --env="ENV=override"     override the environment variables
 366
 367 Advanced options (experts only):
 368   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 369   --custom-allocator=NAME  use a supported custom allocator
 370   --disable-symver         disable symbol versioning
 371   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 372   --disable-safe-bitstream-reader
 373                            disable buffer boundary checking in bitreaders
 374                            (faster, but may crash)
 375   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 376   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 377
 378 Optimization options (experts only):
 379   --disable-asm            disable all assembly optimizations
 380   --disable-altivec        disable AltiVec optimizations
 381   --disable-vsx            disable VSX optimizations
 382   --disable-power8         disable POWER8 optimizations
 383   --disable-amd3dnow       disable 3DNow! optimizations
 384   --disable-amd3dnowext    disable 3DNow! extended optimizations
 385   --disable-mmx            disable MMX optimizations
 386   --disable-mmxext         disable MMXEXT optimizations
 387   --disable-sse            disable SSE optimizations
 388   --disable-sse2           disable SSE2 optimizations
 389   --disable-sse3           disable SSE3 optimizations
 390   --disable-ssse3          disable SSSE3 optimizations
 391   --disable-sse4           disable SSE4 optimizations
 392   --disable-sse42          disable SSE4.2 optimizations
 393   --disable-avx            disable AVX optimizations
 394   --disable-xop            disable XOP optimizations
 395   --disable-fma3           disable FMA3 optimizations
 396   --disable-fma4           disable FMA4 optimizations
 397   --disable-avx2           disable AVX2 optimizations
 398   --disable-aesni          disable AESNI optimizations
 399   --disable-armv5te        disable armv5te optimizations
 400   --disable-armv6          disable armv6 optimizations
 401   --disable-armv6t2        disable armv6t2 optimizations
 402   --disable-vfp            disable VFP optimizations
 403   --disable-neon           disable NEON optimizations
 404   --disable-inline-asm     disable use of inline assembly
 405   --disable-yasm           disable use of nasm/yasm assembly
 406   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 407   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 408   --disable-msa            disable MSA optimizations
 409   --disable-mipsfpu        disable floating point MIPS optimizations
 410   --disable-mmi            disable Loongson SIMD optimizations
 411   --disable-fast-unaligned consider unaligned accesses slow
 412
 413 Developer options (useful when working on FFmpeg itself):
 414   --disable-debug          disable debugging symbols
 415   --enable-debug=LEVEL     set the debug level [$debuglevel]
 416   --disable-optimizations  disable compiler optimizations
 417   --enable-extra-warnings  enable more compiler warnings
 418   --disable-stripping      disable stripping of executables and shared libraries
 419   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 420                            2 causes a slowdown at runtime.
 421   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 422   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 423                            leaks and errors, using the specified valgrind binary.
 424                            Cannot be combined with --target-exec
 425   --enable-ftrapv          Trap arithmetic overflows
 426   --samples=PATH           location of test samples for FATE, if not set use
 427                            \$FATE_SAMPLES at make invocation time.
 428   --enable-neon-clobber-test check NEON registers for clobbering (should be
 429                            used only for debugging purposes)
 430   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 431                            should be used only for debugging purposes)
 432   --enable-random          randomly enable/disable components
 433   --disable-random
 434   --enable-random=LIST     randomly enable/disable specific components or
 435   --disable-random=LIST    component groups. LIST is a comma-separated list
 436                            of NAME[:PROB] entries where NAME is a component
 437                            (group) and PROB the probability associated with
 438                            NAME (default 0.5).
 439   --random-seed=VALUE      seed value for --enable/disable-random
 440   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 441                            (only applies to --disable-optimizations builds)
 442
 443 NOTE: Object files are built at the place where configure is launched.
 444 EOF
 445   exit 0
 446 }
 447
 448 quotes='""'
 449 if test -t 1 && which tput >/dev/null 2>&1; then
 450     ncolors=$(tput colors)
 451     if test -n "$ncolors" && test $ncolors -ge 8; then
 452         bold_color=$(tput bold)
 453         warn_color=$(tput setaf 3)
 454         error_color=$(tput setaf 1)
 455         reset_color=$(tput sgr0)
 456     fi
 457     # 72 used instead of 80 since that's the default of pr
 458     ncols=$(tput cols)
 459 fi
 460 : ${ncols:=72}
 461
 462 log(){
 463     echo "$@" >> $logfile
 464 }
 465
 466 log_file(){
 467     log BEGIN $1
 468     pr -n -t $1 >> $logfile
 469     log END $1
 470 }
 471
 472 warn(){
 473     log "WARNING: $*"
 474     WARNINGS="${WARNINGS}WARNING: $*\n"
 475 }
 476
 477 die(){
 478     log "$@"
 479     echo "$error_color$bold_color$@$reset_color"
 480     cat <<EOF
 481
 482 If you think configure made a mistake, make sure you are using the latest
 483 version from Git.  If the latest version fails, report the problem to the
 484 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 485 EOF
 486     if disabled logging; then
 487         cat <<EOF
 488 Rerun configure with logging enabled (do not use --disable-logging), and
 489 include the log this produces with your report.
 490 EOF
 491     else
 492         cat <<EOF
 493 Include the log file "$logfile" produced by configure as this will help
 494 solve the problem.
 495 EOF
 496     fi
 497     exit 1
 498 }
 499
 500 # Avoid locale weirdness, besides we really just want to translate ASCII.
 501 toupper(){
 502     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 503 }
 504
 505 tolower(){
 506     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 507 }
 508
 509 c_escape(){
 510     echo "$*" | sed 's/["\\]/\\\0/g'
 511 }
 512
 513 sh_quote(){
 514     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 515     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 516     echo "$v"
 517 }
 518
 519 cleanws(){
 520     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 521 }
 522
 523 filter(){
 524     pat=$1
 525     shift
 526     for v; do
 527         eval "case $v in $pat) echo $v ;; esac"
 528     done
 529 }
 530
 531 filter_out(){
 532     pat=$1
 533     shift
 534     for v; do
 535         eval "case $v in $pat) ;; *) echo $v ;; esac"
 536     done
 537 }
 538
 539 map(){
 540     m=$1
 541     shift
 542     for v; do eval $m; done
 543 }
 544
 545 add_suffix(){
 546     suffix=$1
 547     shift
 548     for v; do echo ${v}${suffix}; done
 549 }
 550
 551 set_all(){
 552     value=$1
 553     shift
 554     for var in $*; do
 555         eval $var=$value
 556     done
 557 }
 558
 559 set_weak(){
 560     value=$1
 561     shift
 562     for var; do
 563         eval : \${$var:=$value}
 564     done
 565 }
 566
 567 sanitize_var_name(){
 568     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 569 }
 570
 571 set_safe(){
 572     var=$1
 573     shift
 574     eval $(sanitize_var_name "$var")='$*'
 575 }
 576
 577 get_safe(){
 578     eval echo \$$(sanitize_var_name "$1")
 579 }
 580
 581 pushvar(){
 582     for pvar in $*; do
 583         eval level=\${${pvar}_level:=0}
 584         eval ${pvar}_${level}="\$$pvar"
 585         eval ${pvar}_level=$(($level+1))
 586     done
 587 }
 588
 589 popvar(){
 590     for pvar in $*; do
 591         eval level=\${${pvar}_level:-0}
 592         test $level = 0 && continue
 593         eval level=$(($level-1))
 594         eval $pvar="\${${pvar}_${level}}"
 595         eval ${pvar}_level=$level
 596         eval unset ${pvar}_${level}
 597     done
 598 }
 599
 600 enable(){
 601     set_all yes $*
 602 }
 603
 604 disable(){
 605     set_all no $*
 606 }
 607
 608 enable_weak(){
 609     set_weak yes $*
 610 }
 611
 612 disable_weak(){
 613     set_weak no $*
 614 }
 615
 616 enable_safe(){
 617     for var; do
 618         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 619     done
 620 }
 621
 622 disable_safe(){
 623     for var; do
 624         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 625     done
 626 }
 627
 628 do_enable_deep(){
 629     for var; do
 630         enabled $var && continue
 631         eval sel="\$${var}_select"
 632         eval sgs="\$${var}_suggest"
 633         pushvar var sgs
 634         enable_deep $sel
 635         popvar sgs
 636         enable_deep_weak $sgs
 637         popvar var
 638     done
 639 }
 640
 641 enable_deep(){
 642     do_enable_deep $*
 643     enable $*
 644 }
 645
 646 enable_deep_weak(){
 647     for var; do
 648         disabled $var && continue
 649         pushvar var
 650         do_enable_deep $var
 651         popvar var
 652         enable_weak $var
 653     done
 654 }
 655
 656 enabled(){
 657     test "${1#!}" = "$1" && op='=' || op=!=
 658     eval test "x\$${1#!}" $op "xyes"
 659 }
 660
 661 disabled(){
 662     test "${1#!}" = "$1" && op='=' || op=!=
 663     eval test "x\$${1#!}" $op "xno"
 664 }
 665
 666 enabled_all(){
 667     for opt; do
 668         enabled $opt || return 1
 669     done
 670 }
 671
 672 disabled_all(){
 673     for opt; do
 674         disabled $opt || return 1
 675     done
 676 }
 677
 678 enabled_any(){
 679     for opt; do
 680         enabled $opt && return 0
 681     done
 682 }
 683
 684 disabled_any(){
 685     for opt; do
 686         disabled $opt && return 0
 687     done
 688     return 1
 689 }
 690
 691 set_default(){
 692     for opt; do
 693         eval : \${$opt:=\$${opt}_default}
 694     done
 695 }
 696
 697 is_in(){
 698     value=$1
 699     shift
 700     for var in $*; do
 701         [ $var = $value ] && return 0
 702     done
 703     return 1
 704 }
 705
 706 do_check_deps(){
 707     for cfg; do
 708         cfg="${cfg#!}"
 709         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 710         disabled ${cfg}_checking && continue
 711         enable ${cfg}_checking
 712         append allopts $cfg
 713
 714         eval dep_all="\$${cfg}_deps"
 715         eval dep_any="\$${cfg}_deps_any"
 716         eval dep_sel="\$${cfg}_select"
 717         eval dep_sgs="\$${cfg}_suggest"
 718         eval dep_ifa="\$${cfg}_if"
 719         eval dep_ifn="\$${cfg}_if_any"
 720
 721         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 722         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 723         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 724
 725         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 726         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 727         enabled_all  $dep_all || disable $cfg
 728         enabled_any  $dep_any || disable $cfg
 729         disabled_any $dep_sel && disable $cfg
 730
 731         if enabled $cfg; then
 732             enable_deep $dep_sel
 733             enable_deep_weak $dep_sgs
 734         fi
 735
 736         disable ${cfg}_checking
 737     done
 738 }
 739
 740 check_deps(){
 741     unset allopts
 742
 743     do_check_deps "$@"
 744
 745     for cfg in $allopts; do
 746         enabled $cfg || continue
 747         eval dep_extralibs="\$${cfg}_extralibs"
 748         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 749     done
 750 }
 751
 752 print_config(){
 753     pfx=$1
 754     files=$2
 755     shift 2
 756     map 'eval echo "$v \${$v:-no}"' "$@" |
 757     awk "BEGIN { split(\"$files\", files) }
 758         {
 759             c = \"$pfx\" toupper(\$1);
 760             v = \$2;
 761             sub(/yes/, 1, v);
 762             sub(/no/,  0, v);
 763             for (f in files) {
 764                 file = files[f];
 765                 if (file ~ /\\.h\$/) {
 766                     printf(\"#define %s %d\\n\", c, v) >>file;
 767                 } else if (file ~ /\\.asm\$/) {
 768                     printf(\"%%define %s %d\\n\", c, v) >>file;
 769                 } else if (file ~ /\\.mak\$/) {
 770                     n = -v ? \"\" : \"!\";
 771                     printf(\"%s%s=yes\\n\", n, c) >>file;
 772                 } else if (file ~ /\\.texi\$/) {
 773                     pre = -v ? \"\" : \"@c \";
 774                     yesno = \$2;
 775                     c2 = tolower(c);
 776                     gsub(/_/, \"-\", c2);
 777                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 778                 }
 779             }
 780         }"
 781 }
 782
 783 print_enabled(){
 784     suf=$1
 785     shift
 786     for v; do
 787         enabled $v && printf "%s\n" ${v%$suf}
 788     done
 789 }
 790
 791 append(){
 792     var=$1
 793     shift
 794     eval "$var=\"\$$var $*\""
 795 }
 796
 797 prepend(){
 798     var=$1
 799     shift
 800     eval "$var=\"$* \$$var\""
 801 }
 802
 803 unique(){
 804     var=$1
 805     uniq_list=""
 806     for tok in $(eval echo \$$var); do
 807         uniq_list="$(filter_out $tok $uniq_list) $tok"
 808     done
 809     eval "$var=\"${uniq_list}\""
 810 }
 811
 812 add_cppflags(){
 813     append CPPFLAGS "$@"
 814 }
 815
 816 add_cflags(){
 817     append CFLAGS $($cflags_filter "$@")
 818 }
 819
 820 add_cxxflags(){
 821     append CXXFLAGS $($cflags_filter "$@")
 822 }
 823
 824 add_asflags(){
 825     append ASFLAGS $($asflags_filter "$@")
 826 }
 827
 828 add_objcflags(){
 829     append OBJCFLAGS $($objcflags_filter "$@")
 830 }
 831
 832 add_ldflags(){
 833     append LDFLAGS $($ldflags_filter "$@")
 834 }
 835
 836 add_ldexeflags(){
 837     append LDEXEFLAGS $($ldflags_filter "$@")
 838 }
 839
 840 add_ldlibflags(){
 841     append LDLIBFLAGS $($ldflags_filter "$@")
 842 }
 843
 844 add_stripflags(){
 845     append ASMSTRIPFLAGS "$@"
 846 }
 847
 848 add_extralibs(){
 849     prepend extralibs $($ldflags_filter "$@")
 850 }
 851
 852 add_host_cppflags(){
 853     append host_cppflags "$@"
 854 }
 855
 856 add_host_cflags(){
 857     append host_cflags $($host_cflags_filter "$@")
 858 }
 859
 860 add_host_ldflags(){
 861     append host_ldflags $($host_ldflags_filter "$@")
 862 }
 863
 864 add_compat(){
 865     append compat_objs $1
 866     shift
 867     map 'add_cppflags -D$v' "$@"
 868 }
 869
 870 check_cmd(){
 871     log "$@"
 872     "$@" >> $logfile 2>&1
 873 }
 874
 875 check_stat(){
 876     log check_stat "$@"
 877     stat "$1" >> $logfile 2>&1
 878 }
 879
 880 cc_o(){
 881     eval printf '%s\\n' $CC_O
 882 }
 883
 884 cc_e(){
 885     eval printf '%s\\n' $CC_E
 886 }
 887
 888 check_cc(){
 889     log check_cc "$@"
 890     cat > $TMPC
 891     log_file $TMPC
 892     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 893 }
 894
 895 check_cxx(){
 896     log check_cxx "$@"
 897     cat > $TMPCPP
 898     log_file $TMPCPP
 899     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 900 }
 901
 902 check_objcc(){
 903     log check_objcc "$@"
 904     cat > $TMPM
 905     log_file $TMPM
 906     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 907 }
 908
 909 check_cpp(){
 910     log check_cpp "$@"
 911     cat > $TMPC
 912     log_file $TMPC
 913     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 914 }
 915
 916 as_o(){
 917     eval printf '%s\\n' $AS_O
 918 }
 919
 920 check_as(){
 921     log check_as "$@"
 922     cat > $TMPS
 923     log_file $TMPS
 924     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 925 }
 926
 927 check_inline_asm(){
 928     log check_inline_asm "$@"
 929     name="$1"
 930     code="$2"
 931     shift 2
 932     disable $name
 933     check_cc "$@" <<EOF && enable $name
 934 void foo(void){ __asm__ volatile($code); }
 935 EOF
 936 }
 937
 938 check_inline_asm_flags(){
 939     log check_inline_asm_flags "$@"
 940     name="$1"
 941     code="$2"
 942     flags=''
 943     shift 2
 944     while [ "$1" != "" ]; do
 945       append flags $1
 946       shift
 947     done;
 948     disable $name
 949     cat > $TMPC <<EOF
 950 void foo(void){ __asm__ volatile($code); }
 951 EOF
 952     log_file $TMPC
 953     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 954     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 955 }
 956
 957 check_insn(){
 958     log check_insn "$@"
 959     check_inline_asm ${1}_inline "\"$2\""
 960     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 961 }
 962
 963 check_yasm(){
 964     log check_yasm "$@"
 965     echo "$1" > $TMPS
 966     log_file $TMPS
 967     shift 1
 968     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 969 }
 970
 971 ld_o(){
 972     eval printf '%s\\n' $LD_O
 973 }
 974
 975 check_ld(){
 976     log check_ld "$@"
 977     type=$1
 978     shift 1
 979     flags=$(filter_out '-l*|*.so' $@)
 980     libs=$(filter '-l*|*.so' $@)
 981     check_$type $($cflags_filter $flags) || return
 982     flags=$($ldflags_filter $flags)
 983     libs=$($ldflags_filter $libs)
 984     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 985 }
 986
 987 print_include(){
 988     hdr=$1
 989     test "${hdr%.h}" = "${hdr}" &&
 990         echo "#include $hdr"    ||
 991         echo "#include <$hdr>"
 992 }
 993
 994 check_code(){
 995     log check_code "$@"
 996     check=$1
 997     headers=$2
 998     code=$3
 999     shift 3
1000     {
1001         for hdr in $headers; do
1002             print_include $hdr
1003         done
1004         echo "int main(void) { $code; return 0; }"
1005     } | check_$check "$@"
1006 }
1007
1008 check_cppflags(){
1009     log check_cppflags "$@"
1010     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1011 int x;
1012 EOF
1013 }
1014
1015 test_cflags(){
1016     log test_cflags "$@"
1017     set -- $($cflags_filter "$@")
1018     check_cc "$@" <<EOF
1019 int x;
1020 EOF
1021 }
1022
1023 check_cflags(){
1024     log check_cflags "$@"
1025     test_cflags "$@" && add_cflags "$@"
1026 }
1027
1028 check_cxxflags(){
1029     log check_cxxflags "$@"
1030     set -- $($cflags_filter "$@")
1031     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1032 int x;
1033 EOF
1034 }
1035
1036 test_objcflags(){
1037     log test_cflags "$@"
1038     set -- $($cflags_filter "$@")
1039     check_objcc "$@" <<EOF
1040 int x;
1041 EOF
1042 }
1043
1044 check_objcflags(){
1045     log check_cflags "$@"
1046     test_objcflags "$@" && add_objcflags "$@"
1047 }
1048
1049 test_ldflags(){
1050     log test_ldflags "$@"
1051     check_ld "cc" "$@" <<EOF
1052 int main(void){ return 0; }
1053 EOF
1054 }
1055
1056 check_ldflags(){
1057     log check_ldflags "$@"
1058     test_ldflags "$@" && add_ldflags "$@"
1059 }
1060
1061 test_stripflags(){
1062     log test_stripflags "$@"
1063     # call check_cc to get a fresh TMPO
1064     check_cc <<EOF
1065 int main(void) { return 0; }
1066 EOF
1067     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1068 }
1069
1070 check_stripflags(){
1071     log check_stripflags "$@"
1072     test_stripflags "$@" && add_stripflags "$@"
1073 }
1074
1075 check_header(){
1076     log check_header "$@"
1077     header=$1
1078     shift
1079     disable_safe $header
1080     check_cpp "$@" <<EOF && enable_safe $header
1081 #include <$header>
1082 int x;
1083 EOF
1084 }
1085
1086 check_header_objcc(){
1087     log check_header_objcc "$@"
1088     rm -f -- "$TMPO"
1089     header=$1
1090     shift
1091     disable_safe $header
1092     {
1093        echo "#include <$header>"
1094        echo "int main(void) { return 0; }"
1095     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1096 }
1097
1098 check_func(){
1099     log check_func "$@"
1100     func=$1
1101     shift
1102     disable $func
1103     check_ld "cc" "$@" <<EOF && enable $func
1104 extern int $func();
1105 int main(void){ $func(); }
1106 EOF
1107 }
1108
1109 check_complexfunc(){
1110     log check_complexfunc "$@"
1111     func=$1
1112     narg=$2
1113     shift 2
1114     test $narg = 2 && args="f, g" || args="f * I"
1115     disable $func
1116     check_ld "cc" "$@" <<EOF && enable $func
1117 #include <complex.h>
1118 #include <math.h>
1119 float foo(complex float f, complex float g) { return $func($args); }
1120 int main(void){ return (int) foo; }
1121 EOF
1122 }
1123
1124 check_mathfunc(){
1125     log check_mathfunc "$@"
1126     func=$1
1127     narg=$2
1128     shift 2
1129     test $narg = 2 && args="f, g" || args="f"
1130     disable $func
1131     check_ld "cc" "$@" <<EOF && enable $func
1132 #include <math.h>
1133 float foo(float f, float g) { return $func($args); }
1134 int main(void){ return (int) foo; }
1135 EOF
1136 }
1137
1138 check_func_headers(){
1139     log check_func_headers "$@"
1140     headers=$1
1141     funcs=$2
1142     shift 2
1143     {
1144         for hdr in $headers; do
1145             print_include $hdr
1146         done
1147         echo "#include <stdint.h>"
1148         for func in $funcs; do
1149             echo "long check_$func(void) { return (long) $func; }"
1150         done
1151         echo "int main(void) { int ret = 0;"
1152         # LTO could optimize out the test functions without this
1153         for func in $funcs; do
1154             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1155         done
1156         echo "return ret; }"
1157     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1158 }
1159
1160 check_class_headers_cpp(){
1161     log check_class_headers_cpp "$@"
1162     headers=$1
1163     classes=$2
1164     shift 2
1165     {
1166         for hdr in $headers; do
1167             echo "#include <$hdr>"
1168         done
1169         echo "int main(void) { "
1170         i=1
1171         for class in $classes; do
1172             echo "$class obj$i;"
1173             i=$(expr $i + 1)
1174         done
1175         echo "return 0; }"
1176     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1177 }
1178
1179 check_cpp_condition(){
1180     log check_cpp_condition "$@"
1181     header=$1
1182     condition=$2
1183     shift 2
1184     check_cpp "$@" <<EOF
1185 #include <$header>
1186 #if !($condition)
1187 #error "unsatisfied condition: $condition"
1188 #endif
1189 EOF
1190 }
1191
1192 test_cflags_cpp(){
1193     log test_cflags_cpp "$@"
1194     flags=$1
1195     condition=$2
1196     shift 2
1197     set -- $($cflags_filter "$flags")
1198     check_cpp "$@" <<EOF
1199 #if !($condition)
1200 #error "unsatisfied condition: $condition"
1201 #endif
1202 EOF
1203 }
1204
1205 check_lib(){
1206     log check_lib "$@"
1207     header="$1"
1208     func="$2"
1209     shift 2
1210     check_header $header && check_func $func "$@" && add_extralibs "$@"
1211 }
1212
1213 check_lib2(){
1214     log check_lib2 "$@"
1215     headers="$1"
1216     funcs="$2"
1217     shift 2
1218     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1219 }
1220
1221 check_lib_cpp(){
1222     log check_lib_cpp "$@"
1223     headers="$1"
1224     classes="$2"
1225     shift 2
1226     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1227 }
1228
1229 check_pkg_config(){
1230     log check_pkg_config "$@"
1231     pkgandversion="$1"
1232     pkg="${1%% *}"
1233     headers="$2"
1234     funcs="$3"
1235     shift 3
1236     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1237     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1238     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1239     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1240         set_safe "${pkg}_cflags" $pkg_cflags   &&
1241         set_safe "${pkg}_libs"   $pkg_libs
1242 }
1243
1244 check_exec(){
1245     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1246 }
1247
1248 check_exec_crash(){
1249     code=$(cat)
1250
1251     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1252     # are safe but may not be available everywhere.  Thus we use
1253     # raise(SIGTERM) instead.  The check is run in a subshell so we
1254     # can redirect the "Terminated" message from the shell.  SIGBUS
1255     # is not defined by standard C so it is used conditionally.
1256
1257     (check_exec "$@") >> $logfile 2>&1 <<EOF
1258 #include <signal.h>
1259 static void sighandler(int sig){
1260     raise(SIGTERM);
1261 }
1262 int foo(void){
1263     $code
1264 }
1265 int (*func_ptr)(void) = foo;
1266 int main(void){
1267     signal(SIGILL, sighandler);
1268     signal(SIGFPE, sighandler);
1269     signal(SIGSEGV, sighandler);
1270 #ifdef SIGBUS
1271     signal(SIGBUS, sighandler);
1272 #endif
1273     return func_ptr();
1274 }
1275 EOF
1276 }
1277
1278 check_type(){
1279     log check_type "$@"
1280     headers=$1
1281     type=$2
1282     shift 2
1283     disable_safe "$type"
1284     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1285 }
1286
1287 check_struct(){
1288     log check_struct "$@"
1289     headers=$1
1290     struct=$2
1291     member=$3
1292     shift 3
1293     disable_safe "${struct}_${member}"
1294     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1295         enable_safe "${struct}_${member}"
1296 }
1297
1298 check_builtin(){
1299     log check_builtin "$@"
1300     name=$1
1301     headers=$2
1302     builtin=$3
1303     shift 3
1304     disable "$name"
1305     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1306 }
1307
1308 check_compile_assert(){
1309     log check_compile_assert "$@"
1310     name=$1
1311     headers=$2
1312     condition=$3
1313     shift 3
1314     disable "$name"
1315     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1316 }
1317
1318 require(){
1319     name="$1"
1320     header="$2"
1321     func="$3"
1322     shift 3
1323     check_lib $header $func "$@" || die "ERROR: $name not found"
1324 }
1325
1326 require2(){
1327     name="$1"
1328     headers="$2"
1329     func="$3"
1330     shift 3
1331     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1332 }
1333
1334 require_cpp(){
1335     name="$1"
1336     headers="$2"
1337     classes="$3"
1338     shift 3
1339     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1340 }
1341
1342 use_pkg_config(){
1343     pkg="$1"
1344     check_pkg_config "$@" || return 1
1345     add_cflags    $(get_safe "${pkg}_cflags")
1346     add_extralibs $(get_safe "${pkg}_libs")
1347 }
1348
1349 require_pkg_config(){
1350     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1351 }
1352
1353 require_libfreetype(){
1354     log require_libfreetype "$@"
1355     pkg="freetype2"
1356     check_cmd $pkg_config --exists --print-errors $pkg \
1357       || die "ERROR: $pkg not found"
1358     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1359     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1360     {
1361         echo "#include <ft2build.h>"
1362         echo "#include FT_FREETYPE_H"
1363         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1364         echo "int main(void) { return 0; }"
1365     } | check_ld "cc" $pkg_cflags $pkg_libs \
1366       && set_safe "${pkg}_cflags" $pkg_cflags \
1367       && set_safe "${pkg}_libs"   $pkg_libs \
1368       || die "ERROR: $pkg not found"
1369     add_cflags    $(get_safe "${pkg}_cflags")
1370     add_extralibs $(get_safe "${pkg}_libs")
1371 }
1372
1373 hostcc_e(){
1374     eval printf '%s\\n' $HOSTCC_E
1375 }
1376
1377 hostcc_o(){
1378     eval printf '%s\\n' $HOSTCC_O
1379 }
1380
1381 check_host_cc(){
1382     log check_host_cc "$@"
1383     cat > $TMPC
1384     log_file $TMPC
1385     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1386 }
1387
1388 check_host_cpp(){
1389     log check_host_cpp "$@"
1390     cat > $TMPC
1391     log_file $TMPC
1392     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1393 }
1394
1395 check_host_cppflags(){
1396     log check_host_cppflags "$@"
1397     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1398 int x;
1399 EOF
1400 }
1401
1402 check_host_cflags(){
1403     log check_host_cflags "$@"
1404     set -- $($host_cflags_filter "$@")
1405     check_host_cc "$@" <<EOF && append host_cflags "$@"
1406 int x;
1407 EOF
1408 }
1409
1410 check_host_cpp_condition(){
1411     log check_host_cpp_condition "$@"
1412     header=$1
1413     condition=$2
1414     shift 2
1415     check_host_cpp "$@" <<EOF
1416 #include <$header>
1417 #if !($condition)
1418 #error "unsatisfied condition: $condition"
1419 #endif
1420 EOF
1421 }
1422
1423 cp_if_changed(){
1424     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1425     mkdir -p "$(dirname $2)"
1426     $cp_f "$1" "$2"
1427 }
1428
1429 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1430 # system-dependent things.
1431
1432 AVCODEC_COMPONENTS="
1433     bsfs
1434     decoders
1435     encoders
1436     hwaccels
1437     parsers
1438 "
1439
1440 AVDEVICE_COMPONENTS="
1441     indevs
1442     outdevs
1443 "
1444 AVFILTER_COMPONENTS="
1445     filters
1446 "
1447 AVFORMAT_COMPONENTS="
1448     demuxers
1449     muxers
1450     protocols
1451 "
1452
1453 AVRESAMPLE_COMPONENTS=""
1454 AVUTIL_COMPONENTS=""
1455
1456 COMPONENT_LIST="
1457     $AVCODEC_COMPONENTS
1458     $AVDEVICE_COMPONENTS
1459     $AVFILTER_COMPONENTS
1460     $AVFORMAT_COMPONENTS
1461     $AVRESAMPLE_COMPONENTS
1462     $AVUTIL_COMPONENTS
1463 "
1464
1465 EXAMPLE_LIST="
1466     avio_dir_cmd_example
1467     avio_reading_example
1468     decoding_encoding_example
1469     demuxing_decoding_example
1470     extract_mvs_example
1471     filter_audio_example
1472     filtering_audio_example
1473     filtering_video_example
1474     http_multiclient_example
1475     metadata_example
1476     muxing_example
1477     qsvdec_example
1478     remuxing_example
1479     resampling_audio_example
1480     scaling_video_example
1481     transcode_aac_example
1482     transcoding_example
1483 "
1484
1485 EXTERNAL_LIBRARY_LIST="
1486     avisynth
1487     bzlib
1488     chromaprint
1489     crystalhd
1490     decklink
1491     frei0r
1492     gcrypt
1493     gmp
1494     gnutls
1495     iconv
1496     jni
1497     ladspa
1498     libass
1499     libbluray
1500     libbs2b
1501     libcaca
1502     libcdio
1503     libcelt
1504     libdc1394
1505     libfdk_aac
1506     libflite
1507     libfontconfig
1508     libfreetype
1509     libfribidi
1510     libgme
1511     libgsm
1512     libiec61883
1513     libilbc
1514     libkvazaar
1515     libmodplug
1516     libmp3lame
1517     libnut
1518     libopencore_amrnb
1519     libopencore_amrwb
1520     libopencv
1521     libopenh264
1522     libopenjpeg
1523     libopenmpt
1524     libopus
1525     libpulse
1526     librtmp
1527     librubberband
1528     libschroedinger
1529     libshine
1530     libsmbclient
1531     libsnappy
1532     libsoxr
1533     libspeex
1534     libssh
1535     libtesseract
1536     libtheora
1537     libtwolame
1538     libv4l2
1539     libvidstab
1540     libvo_amrwbenc
1541     libvorbis
1542     libvpx
1543     libwavpack
1544     libwebp
1545     libx264
1546     libx265
1547     libxavs
1548     libxcb
1549     libxcb_shm
1550     libxcb_shape
1551     libxcb_xfixes
1552     libxvid
1553     libzimg
1554     libzmq
1555     libzvbi
1556     lzma
1557     mediacodec
1558     netcdf
1559     openal
1560     opencl
1561     opengl
1562     openssl
1563     schannel
1564     sdl
1565     sdl2
1566     securetransport
1567     videotoolbox
1568     x11grab
1569     xlib
1570     zlib
1571 "
1572
1573 HWACCEL_LIBRARY_LIST="
1574     audiotoolbox
1575     cuda
1576     cuvid
1577     d3d11va
1578     dxva2
1579     libmfx
1580     libnpp
1581     mmal
1582     nvenc
1583     omx
1584     vaapi
1585     vda
1586     vdpau
1587     videotoolbox_hwaccel
1588     xvmc
1589 "
1590
1591 DOCUMENT_LIST="
1592     doc
1593     htmlpages
1594     manpages
1595     podpages
1596     txtpages
1597 "
1598
1599 FEATURE_LIST="
1600     ftrapv
1601     gray
1602     hardcoded_tables
1603     omx_rpi
1604     runtime_cpudetect
1605     safe_bitstream_reader
1606     shared
1607     small
1608     static
1609     swscale_alpha
1610 "
1611
1612 LIBRARY_LIST="
1613     avcodec
1614     avdevice
1615     avfilter
1616     avformat
1617     avresample
1618     avutil
1619     postproc
1620     swresample
1621     swscale
1622 "
1623
1624 LICENSE_LIST="
1625     gpl
1626     nonfree
1627     version3
1628 "
1629
1630 PROGRAM_LIST="
1631     ffplay
1632     ffprobe
1633     ffserver
1634     ffmpeg
1635 "
1636
1637 SUBSYSTEM_LIST="
1638     dct
1639     dwt
1640     error_resilience
1641     faan
1642     fast_unaligned
1643     fft
1644     lsp
1645     lzo
1646     mdct
1647     pixelutils
1648     network
1649     rdft
1650 "
1651
1652 CONFIG_LIST="
1653     $COMPONENT_LIST
1654     $DOCUMENT_LIST
1655     $EXAMPLE_LIST
1656     $EXTERNAL_LIBRARY_LIST
1657     $HWACCEL_LIBRARY_LIST
1658     $FEATURE_LIST
1659     $LICENSE_LIST
1660     $LIBRARY_LIST
1661     $PROGRAM_LIST
1662     $SUBSYSTEM_LIST
1663     fontconfig
1664     memalign_hack
1665     memory_poisoning
1666     neon_clobber_test
1667     pic
1668     pod2man
1669     raise_major
1670     thumb
1671     valgrind_backtrace
1672     xmm_clobber_test
1673 "
1674
1675 THREADS_LIST="
1676     pthreads
1677     os2threads
1678     w32threads
1679 "
1680
1681 ATOMICS_LIST="
1682     atomics_gcc
1683     atomics_suncc
1684     atomics_win32
1685 "
1686
1687 ARCH_LIST="
1688     aarch64
1689     alpha
1690     arm
1691     avr32
1692     avr32_ap
1693     avr32_uc
1694     bfin
1695     ia64
1696     m68k
1697     mips
1698     mips64
1699     parisc
1700     ppc
1701     ppc64
1702     s390
1703     sh4
1704     sparc
1705     sparc64
1706     tilegx
1707     tilepro
1708     tomi
1709     x86
1710     x86_32
1711     x86_64
1712 "
1713
1714 ARCH_EXT_LIST_ARM="
1715     armv5te
1716     armv6
1717     armv6t2
1718     armv8
1719     neon
1720     vfp
1721     vfpv3
1722     setend
1723 "
1724
1725 ARCH_EXT_LIST_MIPS="
1726     mipsfpu
1727     mips32r2
1728     mips32r5
1729     mips64r2
1730     mips32r6
1731     mips64r6
1732     mipsdsp
1733     mipsdspr2
1734     msa
1735 "
1736
1737 ARCH_EXT_LIST_LOONGSON="
1738     loongson2
1739     loongson3
1740     mmi
1741 "
1742
1743 ARCH_EXT_LIST_X86_SIMD="
1744     aesni
1745     amd3dnow
1746     amd3dnowext
1747     avx
1748     avx2
1749     fma3
1750     fma4
1751     mmx
1752     mmxext
1753     sse
1754     sse2
1755     sse3
1756     sse4
1757     sse42
1758     ssse3
1759     xop
1760 "
1761
1762 ARCH_EXT_LIST_PPC="
1763     altivec
1764     dcbzl
1765     ldbrx
1766     power8
1767     ppc4xx
1768     vsx
1769 "
1770
1771 ARCH_EXT_LIST_X86="
1772     $ARCH_EXT_LIST_X86_SIMD
1773     cpunop
1774     i686
1775 "
1776
1777 ARCH_EXT_LIST="
1778     $ARCH_EXT_LIST_ARM
1779     $ARCH_EXT_LIST_PPC
1780     $ARCH_EXT_LIST_X86
1781     $ARCH_EXT_LIST_MIPS
1782     $ARCH_EXT_LIST_LOONGSON
1783 "
1784
1785 ARCH_FEATURES="
1786     aligned_stack
1787     fast_64bit
1788     fast_clz
1789     fast_cmov
1790     local_aligned_8
1791     local_aligned_16
1792     local_aligned_32
1793     simd_align_16
1794 "
1795
1796 BUILTIN_LIST="
1797     atomic_cas_ptr
1798     atomic_compare_exchange
1799     machine_rw_barrier
1800     MemoryBarrier
1801     mm_empty
1802     rdtsc
1803     sarestart
1804     sem_timedwait
1805     sync_val_compare_and_swap
1806 "
1807 HAVE_LIST_CMDLINE="
1808     inline_asm
1809     symver
1810     yasm
1811 "
1812
1813 HAVE_LIST_PUB="
1814     bigendian
1815     fast_unaligned
1816 "
1817
1818 HEADERS_LIST="
1819     alsa_asoundlib_h
1820     altivec_h
1821     arpa_inet_h
1822     asm_types_h
1823     cdio_paranoia_h
1824     cdio_paranoia_paranoia_h
1825     cuda_h
1826     dispatch_dispatch_h
1827     dev_bktr_ioctl_bt848_h
1828     dev_bktr_ioctl_meteor_h
1829     dev_ic_bt8xx_h
1830     dev_video_bktr_ioctl_bt848_h
1831     dev_video_meteor_ioctl_meteor_h
1832     direct_h
1833     dirent_h
1834     dlfcn_h
1835     d3d11_h
1836     dxva_h
1837     ES2_gl_h
1838     gsm_h
1839     io_h
1840     mach_mach_time_h
1841     machine_ioctl_bt848_h
1842     machine_ioctl_meteor_h
1843     malloc_h
1844     opencv2_core_core_c_h
1845     openjpeg_2_1_openjpeg_h
1846     openjpeg_2_0_openjpeg_h
1847     openjpeg_1_5_openjpeg_h
1848     OpenGL_gl3_h
1849     poll_h
1850     sndio_h
1851     soundcard_h
1852     stdatomic_h
1853     sys_mman_h
1854     sys_param_h
1855     sys_resource_h
1856     sys_select_h
1857     sys_soundcard_h
1858     sys_time_h
1859     sys_un_h
1860     sys_videoio_h
1861     termios_h
1862     udplite_h
1863     unistd_h
1864     valgrind_valgrind_h
1865     windows_h
1866     winsock2_h
1867 "
1868
1869 INTRINSICS_LIST="
1870     intrinsics_neon
1871 "
1872
1873 COMPLEX_FUNCS="
1874     cabs
1875     cexp
1876 "
1877
1878 MATH_FUNCS="
1879     atanf
1880     atan2f
1881     cbrt
1882     cbrtf
1883     copysign
1884     cosf
1885     erf
1886     exp2
1887     exp2f
1888     expf
1889     hypot
1890     isfinite
1891     isinf
1892     isnan
1893     ldexpf
1894     llrint
1895     llrintf
1896     log2
1897     log2f
1898     log10f
1899     lrint
1900     lrintf
1901     powf
1902     rint
1903     round
1904     roundf
1905     sinf
1906     trunc
1907     truncf
1908 "
1909
1910 SYSTEM_FUNCS="
1911     access
1912     aligned_malloc
1913     arc4random
1914     clock_gettime
1915     closesocket
1916     CommandLineToArgvW
1917     CoTaskMemFree
1918     CryptGenRandom
1919     dlopen
1920     fcntl
1921     flt_lim
1922     fork
1923     getaddrinfo
1924     gethrtime
1925     getopt
1926     GetProcessAffinityMask
1927     GetProcessMemoryInfo
1928     GetProcessTimes
1929     getrusage
1930     GetSystemTimeAsFileTime
1931     gettimeofday
1932     glob
1933     glXGetProcAddress
1934     gmtime_r
1935     inet_aton
1936     isatty
1937     jack_port_get_latency_range
1938     kbhit
1939     LoadLibrary
1940     localtime_r
1941     lstat
1942     lzo1x_999_compress
1943     mach_absolute_time
1944     MapViewOfFile
1945     memalign
1946     mkstemp
1947     mmap
1948     mprotect
1949     nanosleep
1950     PeekNamedPipe
1951     posix_memalign
1952     pthread_cancel
1953     sched_getaffinity
1954     SetConsoleTextAttribute
1955     SetConsoleCtrlHandler
1956     setmode
1957     setrlimit
1958     Sleep
1959     strerror_r
1960     sysconf
1961     sysctl
1962     usleep
1963     UTGetOSTypeFromString
1964     VirtualAlloc
1965     wglGetProcAddress
1966 "
1967
1968 TOOLCHAIN_FEATURES="
1969     as_dn_directive
1970     as_func
1971     as_object_arch
1972     asm_mod_q
1973     attribute_may_alias
1974     attribute_packed
1975     ebp_available
1976     ebx_available
1977     gnu_as
1978     gnu_windres
1979     ibm_asm
1980     inline_asm_direct_symbol_refs
1981     inline_asm_labels
1982     inline_asm_nonlocal_labels
1983     pragma_deprecated
1984     rsync_contimeout
1985     symver_asm_label
1986     symver_gnu_asm
1987     vfp_args
1988     xform_asm
1989     xmm_clobbers
1990 "
1991
1992 TYPES_LIST="
1993     CONDITION_VARIABLE_Ptr
1994     socklen_t
1995     struct_addrinfo
1996     struct_group_source_req
1997     struct_ip_mreq_source
1998     struct_ipv6_mreq
1999     struct_msghdr_msg_flags
2000     struct_pollfd
2001     struct_rusage_ru_maxrss
2002     struct_sctp_event_subscribe
2003     struct_sockaddr_in6
2004     struct_sockaddr_sa_len
2005     struct_sockaddr_storage
2006     struct_stat_st_mtim_tv_nsec
2007     struct_v4l2_frmivalenum_discrete
2008 "
2009
2010 HAVE_LIST="
2011     $ARCH_EXT_LIST
2012     $(add_suffix _external $ARCH_EXT_LIST)
2013     $(add_suffix _inline   $ARCH_EXT_LIST)
2014     $ARCH_FEATURES
2015     $ATOMICS_LIST
2016     $BUILTIN_LIST
2017     $COMPLEX_FUNCS
2018     $HAVE_LIST_CMDLINE
2019     $HAVE_LIST_PUB
2020     $HEADERS_LIST
2021     $INTRINSICS_LIST
2022     $MATH_FUNCS
2023     $SYSTEM_FUNCS
2024     $THREADS_LIST
2025     $TOOLCHAIN_FEATURES
2026     $TYPES_LIST
2027     atomics_native
2028     dos_paths
2029     dxva2_lib
2030     dxva2api_cobj
2031     libc_msvcrt
2032     libdc1394_1
2033     libdc1394_2
2034     makeinfo
2035     makeinfo_html
2036     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2037     perl
2038     pod2man
2039     sdl2
2040     section_data_rel_ro
2041     texi2html
2042     threads
2043     vaapi_drm
2044     vaapi_x11
2045     vdpau_x11
2046     winrt
2047     xlib
2048 "
2049
2050 # options emitted with CONFIG_ prefix but not available on the command line
2051 CONFIG_EXTRA="
2052     aandcttables
2053     ac3dsp
2054     audio_frame_queue
2055     audiodsp
2056     blockdsp
2057     bswapdsp
2058     cabac
2059     dirac_parse
2060     dvprofile
2061     exif
2062     faandct
2063     faanidct
2064     fdctdsp
2065     flacdsp
2066     fmtconvert
2067     frame_thread_encoder
2068     g722dsp
2069     golomb
2070     gplv3
2071     h263dsp
2072     h264chroma
2073     h264dsp
2074     h264parse
2075     h264pred
2076     h264qpel
2077     hpeldsp
2078     huffman
2079     huffyuvdsp
2080     huffyuvencdsp
2081     idctdsp
2082     iirfilter
2083     imdct15
2084     intrax8
2085     iso_media
2086     ividsp
2087     jpegtables
2088     lgplv3
2089     libx262
2090     llauddsp
2091     llviddsp
2092     lpc
2093     lzf
2094     me_cmp
2095     mpeg_er
2096     mpegaudio
2097     mpegaudiodsp
2098     mpegvideo
2099     mpegvideoenc
2100     mss34dsp
2101     pixblockdsp
2102     qpeldsp
2103     qsv
2104     qsvdec
2105     qsvenc
2106     rangecoder
2107     riffdec
2108     riffenc
2109     rtpdec
2110     rtpenc_chain
2111     rv34dsp
2112     sinewin
2113     snappy
2114     srtp
2115     startcode
2116     texturedsp
2117     texturedspenc
2118     tpeldsp
2119     vaapi_encode
2120     vc1dsp
2121     videodsp
2122     vp3dsp
2123     vp56dsp
2124     vp8dsp
2125     vt_bt2020
2126     wma_freqs
2127     wmv2dsp
2128 "
2129
2130 CMDLINE_SELECT="
2131     $ARCH_EXT_LIST
2132     $CONFIG_LIST
2133     $HAVE_LIST_CMDLINE
2134     $THREADS_LIST
2135     asm
2136     cross_compile
2137     debug
2138     extra_warnings
2139     logging
2140     lto
2141     optimizations
2142     rpath
2143     stripping
2144 "
2145
2146 PATHS_LIST="
2147     bindir
2148     datadir
2149     docdir
2150     incdir
2151     libdir
2152     mandir
2153     pkgconfigdir
2154     prefix
2155     shlibdir
2156     install_name_dir
2157 "
2158
2159 CMDLINE_SET="
2160     $PATHS_LIST
2161     ar
2162     arch
2163     as
2164     assert_level
2165     build_suffix
2166     cc
2167     objcc
2168     cpu
2169     cross_prefix
2170     custom_allocator
2171     cxx
2172     dep_cc
2173     doxygen
2174     env
2175     extra_version
2176     gas
2177     host_cc
2178     host_cflags
2179     host_ld
2180     host_ldflags
2181     host_libs
2182     host_os
2183     install
2184     ld
2185     ln_s
2186     logfile
2187     malloc_prefix
2188     nm
2189     optflags
2190     pkg_config
2191     pkg_config_flags
2192     progs_suffix
2193     random_seed
2194     ranlib
2195     samples
2196     strip
2197     sws_max_filter_size
2198     sysinclude
2199     sysroot
2200     target_exec
2201     target_os
2202     target_path
2203     target_samples
2204     tempprefix
2205     toolchain
2206     valgrind
2207     yasmexe
2208 "
2209
2210 CMDLINE_APPEND="
2211     extra_cflags
2212     extra_cxxflags
2213     extra_objcflags
2214     host_cppflags
2215 "
2216
2217 # code dependency declarations
2218
2219 # architecture extensions
2220
2221 armv5te_deps="arm"
2222 armv6_deps="arm"
2223 armv6t2_deps="arm"
2224 armv8_deps="aarch64"
2225 neon_deps_any="aarch64 arm"
2226 intrinsics_neon_deps="neon"
2227 vfp_deps_any="aarch64 arm"
2228 vfpv3_deps="vfp"
2229 setend_deps="arm"
2230
2231 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2232
2233 loongson2_deps="mips"
2234 loongson3_deps="mips"
2235 mipsfpu_deps="mips"
2236 mipsdsp_deps="mips"
2237 mipsdspr2_deps="mips"
2238 mips32r2_deps="mips"
2239 mips32r5_deps="mips"
2240 mips32r6_deps="mips"
2241 mips64r2_deps="mips"
2242 mips64r6_deps="mips"
2243 msa_deps="mipsfpu"
2244 mmi_deps="mips"
2245
2246 altivec_deps="ppc"
2247 dcbzl_deps="ppc"
2248 ldbrx_deps="ppc"
2249 ppc4xx_deps="ppc"
2250 vsx_deps="altivec"
2251 power8_deps="vsx"
2252
2253 cpunop_deps="i686"
2254 x86_64_select="i686"
2255 x86_64_suggest="fast_cmov"
2256
2257 amd3dnow_deps="mmx"
2258 amd3dnowext_deps="amd3dnow"
2259 i686_deps="x86"
2260 mmx_deps="x86"
2261 mmxext_deps="mmx"
2262 sse_deps="mmxext"
2263 sse2_deps="sse"
2264 sse3_deps="sse2"
2265 ssse3_deps="sse3"
2266 sse4_deps="ssse3"
2267 sse42_deps="sse4"
2268 aesni_deps="sse42"
2269 avx_deps="sse42"
2270 xop_deps="avx"
2271 fma3_deps="avx"
2272 fma4_deps="avx"
2273 avx2_deps="avx"
2274
2275 mmx_external_deps="yasm"
2276 mmx_inline_deps="inline_asm"
2277 mmx_suggest="mmx_external mmx_inline"
2278
2279 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2280     eval dep=\$${ext}_deps
2281     eval ${ext}_external_deps='"${dep}_external"'
2282     eval ${ext}_inline_deps='"${dep}_inline"'
2283     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2284 done
2285
2286 aligned_stack_if_any="aarch64 ppc x86"
2287 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2288 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2289 fast_unaligned_if_any="aarch64 ppc x86"
2290 simd_align_16_if_any="altivec neon sse"
2291
2292 # system capabilities
2293 symver_if_any="symver_asm_label symver_gnu_asm"
2294 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2295
2296 # threading support
2297 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2298 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2299 atomics_win32_if="MemoryBarrier"
2300 atomics_native_if_any="$ATOMICS_LIST"
2301 w32threads_deps="atomics_native"
2302 threads_if_any="$THREADS_LIST"
2303
2304 # subsystems
2305 dct_select="rdft"
2306 dirac_parse_select="golomb"
2307 error_resilience_select="me_cmp"
2308 faandct_deps="faan fdctdsp"
2309 faanidct_deps="faan idctdsp"
2310 h264dsp_select="startcode"
2311 frame_thread_encoder_deps="encoders threads"
2312 intrax8_select="blockdsp idctdsp"
2313 mdct_select="fft"
2314 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2315 mpeg_er_select="error_resilience"
2316 mpegaudio_select="mpegaudiodsp"
2317 mpegaudiodsp_select="dct"
2318 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2319 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2320 vc1dsp_select="h264chroma qpeldsp startcode"
2321 rdft_select="fft"
2322
2323 # decoders / encoders
2324 aac_decoder_select="imdct15 mdct sinewin"
2325 aac_fixed_decoder_select="mdct sinewin"
2326 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2327 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2328 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2329 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2330 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2331 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2332 adpcm_g722_decoder_select="g722dsp"
2333 adpcm_g722_encoder_select="g722dsp"
2334 aic_decoder_select="golomb idctdsp"
2335 alac_encoder_select="lpc"
2336 als_decoder_select="bswapdsp"
2337 amrnb_decoder_select="lsp"
2338 amrwb_decoder_select="lsp"
2339 amv_decoder_select="sp5x_decoder exif"
2340 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2341 ape_decoder_select="bswapdsp llauddsp"
2342 apng_decoder_select="zlib"
2343 apng_encoder_select="huffyuvencdsp zlib"
2344 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2345 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2346 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2347 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2348 atrac1_decoder_select="mdct sinewin"
2349 atrac3_decoder_select="mdct"
2350 atrac3p_decoder_select="mdct sinewin"
2351 avrn_decoder_select="exif jpegtables"
2352 bink_decoder_select="blockdsp hpeldsp"
2353 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2354 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2355 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2356 cllc_decoder_select="bswapdsp"
2357 comfortnoise_encoder_select="lpc"
2358 cook_decoder_select="audiodsp mdct sinewin"
2359 cscd_decoder_select="lzo"
2360 cscd_decoder_suggest="zlib"
2361 dca_decoder_select="mdct"
2362 dds_decoder_select="texturedsp"
2363 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2364 dnxhd_decoder_select="blockdsp idctdsp"
2365 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2366 dvvideo_decoder_select="dvprofile idctdsp"
2367 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2368 dxa_decoder_select="zlib"
2369 dxv_decoder_select="lzf texturedsp"
2370 eac3_decoder_select="ac3_decoder"
2371 eac3_encoder_select="ac3_encoder"
2372 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2373 eatgq_decoder_select="aandcttables"
2374 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2375 exr_decoder_select="zlib"
2376 ffv1_decoder_select="golomb rangecoder"
2377 ffv1_encoder_select="rangecoder"
2378 ffvhuff_decoder_select="huffyuv_decoder"
2379 ffvhuff_encoder_select="huffyuv_encoder"
2380 fic_decoder_select="golomb"
2381 flac_decoder_select="flacdsp golomb"
2382 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2383 flashsv2_decoder_select="zlib"
2384 flashsv2_encoder_select="zlib"
2385 flashsv_decoder_select="zlib"
2386 flashsv_encoder_select="zlib"
2387 flv_decoder_select="h263_decoder"
2388 flv_encoder_select="h263_encoder"
2389 fourxm_decoder_select="blockdsp bswapdsp"
2390 fraps_decoder_select="bswapdsp huffman"
2391 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2392 g729_decoder_select="audiodsp"
2393 h261_decoder_select="mpegvideo"
2394 h261_encoder_select="aandcttables mpegvideoenc"
2395 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2396 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2397 h263i_decoder_select="h263_decoder"
2398 h263p_decoder_select="h263_decoder"
2399 h263p_encoder_select="h263_encoder"
2400 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2401 h264_decoder_suggest="error_resilience"
2402 hap_decoder_select="snappy texturedsp"
2403 hap_encoder_deps="libsnappy"
2404 hap_encoder_select="texturedspenc"
2405 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2406 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2407 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2408 iac_decoder_select="imc_decoder"
2409 imc_decoder_select="bswapdsp fft mdct sinewin"
2410 indeo3_decoder_select="hpeldsp"
2411 indeo4_decoder_select="ividsp"
2412 indeo5_decoder_select="ividsp"
2413 interplay_video_decoder_select="hpeldsp"
2414 jpegls_decoder_select="golomb mjpeg_decoder"
2415 jpegls_encoder_select="golomb"
2416 jv_decoder_select="blockdsp"
2417 lagarith_decoder_select="huffyuvdsp"
2418 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2419 loco_decoder_select="golomb"
2420 magicyuv_decoder_select="huffyuvdsp"
2421 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2422 metasound_decoder_select="lsp mdct sinewin"
2423 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2424 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2425 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2426 mjpegb_decoder_select="mjpeg_decoder"
2427 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2428 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2429 mlp_decoder_select="mlp_parser"
2430 motionpixels_decoder_select="bswapdsp"
2431 mp1_decoder_select="mpegaudio"
2432 mp1float_decoder_select="mpegaudio"
2433 mp2_decoder_select="mpegaudio"
2434 mp2float_decoder_select="mpegaudio"
2435 mp3_decoder_select="mpegaudio"
2436 mp3adu_decoder_select="mpegaudio"
2437 mp3adufloat_decoder_select="mpegaudio"
2438 mp3float_decoder_select="mpegaudio"
2439 mp3on4_decoder_select="mpegaudio"
2440 mp3on4float_decoder_select="mpegaudio"
2441 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2442 mpc8_decoder_select="mpegaudiodsp"
2443 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2444 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2445 mpegvideo_decoder_select="mpegvideo"
2446 mpeg1video_decoder_select="mpegvideo"
2447 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2448 mpeg2video_decoder_select="mpegvideo"
2449 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2450 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2451 mpeg4_encoder_select="h263_encoder"
2452 msa1_decoder_select="mss34dsp"
2453 msmpeg4v1_decoder_select="h263_decoder"
2454 msmpeg4v2_decoder_select="h263_decoder"
2455 msmpeg4v2_encoder_select="h263_encoder"
2456 msmpeg4v3_decoder_select="h263_decoder"
2457 msmpeg4v3_encoder_select="h263_encoder"
2458 mss2_decoder_select="vc1_decoder mpegvideo"
2459 mts2_decoder_select="mss34dsp"
2460 mxpeg_decoder_select="mjpeg_decoder"
2461 nellymoser_decoder_select="mdct sinewin"
2462 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2463 nuv_decoder_select="idctdsp lzo"
2464 on2avc_decoder_select="mdct"
2465 opus_decoder_deps="swresample"
2466 opus_decoder_select="imdct15"
2467 png_decoder_select="zlib"
2468 png_encoder_select="huffyuvencdsp zlib"
2469 prores_decoder_select="blockdsp idctdsp"
2470 prores_encoder_select="fdctdsp"
2471 qcelp_decoder_select="lsp"
2472 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2473 ra_144_decoder_select="audiodsp"
2474 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2475 ralf_decoder_select="golomb"
2476 rawvideo_decoder_select="bswapdsp"
2477 rscc_decoder_select="zlib"
2478 rtjpeg_decoder_select="me_cmp"
2479 rv10_decoder_select="h263_decoder"
2480 rv10_encoder_select="h263_encoder"
2481 rv20_decoder_select="h263_decoder"
2482 rv20_encoder_select="h263_encoder"
2483 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2484 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2485 screenpresso_decoder_select="zlib"
2486 shorten_decoder_select="golomb"
2487 sipr_decoder_select="lsp"
2488 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2489 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2490 sonic_decoder_select="golomb rangecoder"
2491 sonic_encoder_select="golomb rangecoder"
2492 sonic_ls_encoder_select="golomb rangecoder"
2493 sp5x_decoder_select="mjpeg_decoder"
2494 svq1_decoder_select="hpeldsp"
2495 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2496 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2497 svq3_decoder_suggest="zlib"
2498 tak_decoder_select="audiodsp"
2499 tdsc_decoder_select="zlib mjpeg_decoder"
2500 theora_decoder_select="vp3_decoder"
2501 thp_decoder_select="mjpeg_decoder"
2502 tiff_decoder_suggest="zlib lzma"
2503 tiff_encoder_suggest="zlib"
2504 truehd_decoder_select="mlp_parser"
2505 truemotion2_decoder_select="bswapdsp"
2506 truespeech_decoder_select="bswapdsp"
2507 tscc_decoder_select="zlib"
2508 twinvq_decoder_select="mdct lsp sinewin"
2509 txd_decoder_select="texturedsp"
2510 utvideo_decoder_select="bswapdsp"
2511 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2512 vble_decoder_select="huffyuvdsp"
2513 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2514 vc1_qsv_decoder_deps="libmfx"
2515 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2516 vc1image_decoder_select="vc1_decoder"
2517 vorbis_decoder_select="mdct"
2518 vorbis_encoder_select="mdct"
2519 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2520 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2521 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2522 vp6a_decoder_select="vp6_decoder"
2523 vp6f_decoder_select="vp6_decoder"
2524 vp7_decoder_select="h264pred videodsp vp8dsp"
2525 vp8_decoder_select="h264pred videodsp vp8dsp"
2526 vp9_decoder_select="videodsp vp9_parser"
2527 webp_decoder_select="vp8_decoder exif"
2528 wmalossless_decoder_select="llauddsp"
2529 wmapro_decoder_select="mdct sinewin wma_freqs"
2530 wmav1_decoder_select="mdct sinewin wma_freqs"
2531 wmav1_encoder_select="mdct sinewin wma_freqs"
2532 wmav2_decoder_select="mdct sinewin wma_freqs"
2533 wmav2_encoder_select="mdct sinewin wma_freqs"
2534 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2535 wmv1_decoder_select="h263_decoder"
2536 wmv1_encoder_select="h263_encoder"
2537 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2538 wmv2_encoder_select="h263_encoder wmv2dsp"
2539 wmv3_decoder_select="vc1_decoder"
2540 wmv3image_decoder_select="wmv3_decoder"
2541 xma1_decoder_select="wmapro_decoder"
2542 xma2_decoder_select="wmapro_decoder"
2543 zerocodec_decoder_select="zlib"
2544 zlib_decoder_select="zlib"
2545 zlib_encoder_select="zlib"
2546 zmbv_decoder_select="zlib"
2547 zmbv_encoder_select="zlib"
2548
2549 # platform codecs
2550 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2551 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2552
2553 # hardware accelerators
2554 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2555 cuda_deps_any="dlopen LoadLibrary"
2556 cuvid_deps="cuda"
2557 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2558 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2559 dxva2_extralibs="-luser32"
2560 vaapi_deps="va_va_h"
2561 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2562 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2563 vda_deps="vda_framework pthreads"
2564 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2565 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2566 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2567 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2568 xvmc_deps="X11_extensions_XvMClib_h"
2569
2570 h263_vaapi_hwaccel_deps="vaapi"
2571 h263_vaapi_hwaccel_select="h263_decoder"
2572 h263_videotoolbox_hwaccel_deps="videotoolbox"
2573 h263_videotoolbox_hwaccel_select="h263_decoder"
2574 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2575 h264_cuvid_hwaccel_deps="cuda cuvid"
2576 h264_d3d11va_hwaccel_deps="d3d11va"
2577 h264_d3d11va_hwaccel_select="h264_decoder"
2578 h264_dxva2_hwaccel_deps="dxva2"
2579 h264_dxva2_hwaccel_select="h264_decoder"
2580 h264_mediacodec_decoder_deps="mediacodec"
2581 h264_mediacodec_hwaccel_deps="mediacodec"
2582 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2583 h264_mmal_decoder_deps="mmal"
2584 h264_mmal_decoder_select="mmal"
2585 h264_mmal_hwaccel_deps="mmal"
2586 h264_omx_encoder_deps="omx"
2587 h264_qsv_hwaccel_deps="libmfx"
2588 h264_vaapi_hwaccel_deps="vaapi"
2589 h264_vaapi_hwaccel_select="h264_decoder"
2590 h264_vda_decoder_deps="vda"
2591 h264_vda_decoder_select="h264_decoder"
2592 h264_vda_hwaccel_deps="vda"
2593 h264_vda_hwaccel_select="h264_decoder"
2594 h264_vda_old_hwaccel_deps="vda"
2595 h264_vda_old_hwaccel_select="h264_decoder"
2596 h264_vdpau_decoder_deps="vdpau"
2597 h264_vdpau_decoder_select="h264_decoder"
2598 h264_vdpau_hwaccel_deps="vdpau"
2599 h264_vdpau_hwaccel_select="h264_decoder"
2600 h264_videotoolbox_hwaccel_deps="videotoolbox"
2601 h264_videotoolbox_hwaccel_select="h264_decoder"
2602 hevc_cuvid_hwaccel_deps="cuda cuvid"
2603 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2604 hevc_d3d11va_hwaccel_select="hevc_decoder"
2605 hevc_mediacodec_decoder_deps="mediacodec"
2606 hevc_mediacodec_hwaccel_deps="mediacodec"
2607 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2608 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2609 hevc_dxva2_hwaccel_select="hevc_decoder"
2610 hevc_qsv_hwaccel_deps="libmfx"
2611 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2612 hevc_vaapi_hwaccel_select="hevc_decoder"
2613 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2614 hevc_vdpau_hwaccel_select="hevc_decoder"
2615 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2616 mpeg_vdpau_decoder_deps="vdpau"
2617 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2618 mpeg_xvmc_hwaccel_deps="xvmc"
2619 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2620 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2621 mpeg1_vdpau_decoder_deps="vdpau"
2622 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2623 mpeg1_vdpau_hwaccel_deps="vdpau"
2624 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2625 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2626 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2627 mpeg1_xvmc_hwaccel_deps="xvmc"
2628 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2629 mpeg2_crystalhd_decoder_select="crystalhd"
2630 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2631 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2632 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2633 mpeg2_dxva2_hwaccel_deps="dxva2"
2634 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2635 mpeg2_mmal_decoder_deps="mmal"
2636 mpeg2_mmal_decoder_select="mmal"
2637 mpeg2_mmal_hwaccel_deps="mmal"
2638 mpeg2_qsv_hwaccel_deps="libmfx"
2639 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2640 mpeg2_vaapi_hwaccel_deps="vaapi"
2641 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2642 mpeg2_vdpau_hwaccel_deps="vdpau"
2643 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2644 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2645 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2646 mpeg2_xvmc_hwaccel_deps="xvmc"
2647 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2648 mpeg4_crystalhd_decoder_select="crystalhd"
2649 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2650 mpeg4_mediacodec_decoder_deps="mediacodec"
2651 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2652 mpeg4_mmal_decoder_deps="mmal"
2653 mpeg4_mmal_decoder_select="mmal"
2654 mpeg4_mmal_hwaccel_deps="mmal"
2655 mpeg4_omx_encoder_deps="omx"
2656 mpeg4_vaapi_hwaccel_deps="vaapi"
2657 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2658 mpeg4_vdpau_decoder_deps="vdpau"
2659 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2660 mpeg4_vdpau_hwaccel_deps="vdpau"
2661 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2662 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2663 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2664 msmpeg4_crystalhd_decoder_select="crystalhd"
2665 vc1_crystalhd_decoder_select="crystalhd"
2666 vc1_cuvid_hwaccel_deps="cuda cuvid"
2667 vc1_d3d11va_hwaccel_deps="d3d11va"
2668 vc1_d3d11va_hwaccel_select="vc1_decoder"
2669 vc1_dxva2_hwaccel_deps="dxva2"
2670 vc1_dxva2_hwaccel_select="vc1_decoder"
2671 vc1_mmal_decoder_deps="mmal"
2672 vc1_mmal_decoder_select="mmal"
2673 vc1_mmal_hwaccel_deps="mmal"
2674 vc1_qsv_hwaccel_deps="libmfx"
2675 vc1_qsv_hwaccel_select="qsvdec_vc1"
2676 vc1_vaapi_hwaccel_deps="vaapi"
2677 vc1_vaapi_hwaccel_select="vc1_decoder"
2678 vc1_vdpau_decoder_deps="vdpau"
2679 vc1_vdpau_decoder_select="vc1_decoder"
2680 vc1_vdpau_hwaccel_deps="vdpau"
2681 vc1_vdpau_hwaccel_select="vc1_decoder"
2682 vp8_cuvid_hwaccel_deps="cuda cuvid"
2683 vp9_cuvid_hwaccel_deps="cuda cuvid"
2684 vp8_mediacodec_decoder_deps="mediacodec"
2685 vp8_mediacodec_hwaccel_deps="mediacodec"
2686 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2687 vp9_d3d11va_hwaccel_select="vp9_decoder"
2688 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2689 vp9_dxva2_hwaccel_select="vp9_decoder"
2690 vp9_mediacodec_decoder_deps="mediacodec"
2691 vp9_mediacodec_hwaccel_deps="mediacodec"
2692 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2693 vp9_vaapi_hwaccel_select="vp9_decoder"
2694 wmv3_crystalhd_decoder_select="crystalhd"
2695 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2696 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2697 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2698 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2699 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2700
2701 # hardware-accelerated codecs
2702 omx_deps="dlopen pthreads"
2703 omx_extralibs='$ldl'
2704 qsvdec_select="qsv"
2705 qsvenc_select="qsv"
2706 vaapi_encode_deps="vaapi"
2707
2708 hwupload_cuda_filter_deps="cuda"
2709 scale_npp_filter_deps="cuda libnpp"
2710
2711 nvenc_deps="cuda"
2712 nvenc_deps_any="dlopen LoadLibrary"
2713 nvenc_encoder_deps="nvenc"
2714 h264_cuvid_decoder_deps="cuda cuvid"
2715 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2716 h264_nvenc_encoder_deps="nvenc"
2717 h264_qsv_decoder_deps="libmfx"
2718 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2719 h264_qsv_encoder_deps="libmfx"
2720 h264_qsv_encoder_select="qsvenc"
2721 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2722 h264_vaapi_encoder_select="vaapi_encode golomb"
2723
2724 hevc_cuvid_decoder_deps="cuda cuvid"
2725 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2726 hevc_nvenc_encoder_deps="nvenc"
2727 hevc_qsv_decoder_deps="libmfx"
2728 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2729 hevc_qsv_encoder_deps="libmfx"
2730 hevc_qsv_encoder_select="qsvenc"
2731 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2732 hevc_vaapi_encoder_select="vaapi_encode golomb"
2733 mjpeg_cuvid_decoder_deps="cuda cuvid"
2734 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2735 mpeg1_cuvid_decoder_deps="cuda cuvid"
2736 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2737 mpeg2_cuvid_decoder_deps="cuda cuvid"
2738 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2739 mpeg2_qsv_decoder_deps="libmfx"
2740 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2741 mpeg2_qsv_encoder_deps="libmfx"
2742 mpeg2_qsv_encoder_select="qsvenc"
2743 mpeg4_cuvid_decoder_deps="cuda cuvid"
2744 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2745 nvenc_h264_encoder_deps="nvenc"
2746 nvenc_hevc_encoder_deps="nvenc"
2747
2748 vc1_cuvid_decoder_deps="cuda cuvid"
2749 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2750 vp8_cuvid_decoder_deps="cuda cuvid"
2751 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2752 vp9_cuvid_decoder_deps="cuda cuvid"
2753 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2754
2755 # parsers
2756 h264_parser_select="golomb h264dsp h264parse"
2757 hevc_parser_select="golomb"
2758 mpegvideo_parser_select="mpegvideo"
2759 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2760 vc1_parser_select="vc1dsp"
2761
2762 # bitstream_filters
2763 mjpeg2jpeg_bsf_select="jpegtables"
2764
2765 # external libraries
2766 aac_at_decoder_deps="audiotoolbox"
2767 ac3_at_decoder_deps="audiotoolbox"
2768 ac3_at_decoder_select="ac3_parser"
2769 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2770 alac_at_decoder_deps="audiotoolbox"
2771 amr_nb_at_decoder_deps="audiotoolbox"
2772 avisynth_deps_any="dlopen LoadLibrary"
2773 avisynth_demuxer_deps="avisynth"
2774 avisynth_demuxer_select="riffdec"
2775 eac3_at_decoder_deps="audiotoolbox"
2776 eac3_at_decoder_select="ac3_parser"
2777 gsm_ms_at_decoder_deps="audiotoolbox"
2778 ilbc_at_decoder_deps="audiotoolbox"
2779 mp1_at_decoder_deps="audiotoolbox"
2780 mp2_at_decoder_deps="audiotoolbox"
2781 mp3_at_decoder_deps="audiotoolbox"
2782 pcm_alaw_at_decoder_deps="audiotoolbox"
2783 pcm_mulaw_at_decoder_deps="audiotoolbox"
2784 qdmc_at_decoder_deps="audiotoolbox"
2785 qdm2_at_decoder_deps="audiotoolbox"
2786 aac_at_encoder_deps="audiotoolbox"
2787 aac_at_encoder_select="audio_frame_queue"
2788 alac_at_encoder_deps="audiotoolbox"
2789 alac_at_encoder_select="audio_frame_queue"
2790 ilbc_at_encoder_deps="audiotoolbox"
2791 ilbc_at_encoder_select="audio_frame_queue"
2792 pcm_alaw_at_encoder_deps="audiotoolbox"
2793 pcm_alaw_at_encoder_select="audio_frame_queue"
2794 pcm_mulaw_at_encoder_deps="audiotoolbox"
2795 pcm_mulaw_at_encoder_select="audio_frame_queue"
2796 chromaprint_muxer_deps="chromaprint"
2797 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2798 libcelt_decoder_deps="libcelt"
2799 libfdk_aac_decoder_deps="libfdk_aac"
2800 libfdk_aac_encoder_deps="libfdk_aac"
2801 libfdk_aac_encoder_select="audio_frame_queue"
2802 libgme_demuxer_deps="libgme"
2803 libgsm_decoder_deps="libgsm"
2804 libgsm_encoder_deps="libgsm"
2805 libgsm_ms_decoder_deps="libgsm"
2806 libgsm_ms_encoder_deps="libgsm"
2807 libilbc_decoder_deps="libilbc"
2808 libilbc_encoder_deps="libilbc"
2809 libkvazaar_encoder_deps="libkvazaar"
2810 libmodplug_demuxer_deps="libmodplug"
2811 libmp3lame_encoder_deps="libmp3lame"
2812 libmp3lame_encoder_select="audio_frame_queue"
2813 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2814 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2815 libopencore_amrnb_encoder_select="audio_frame_queue"
2816 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2817 libopenh264_decoder_deps="libopenh264"
2818 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2819 libopenh264_encoder_deps="libopenh264"
2820 libopenjpeg_decoder_deps="libopenjpeg"
2821 libopenjpeg_encoder_deps="libopenjpeg"
2822 libopenmpt_demuxer_deps="libopenmpt"
2823 libopus_decoder_deps="libopus"
2824 libopus_encoder_deps="libopus"
2825 libopus_encoder_select="audio_frame_queue"
2826 libschroedinger_decoder_deps="libschroedinger"
2827 libschroedinger_encoder_deps="libschroedinger"
2828 libshine_encoder_deps="libshine"
2829 libshine_encoder_select="audio_frame_queue"
2830 libspeex_decoder_deps="libspeex"
2831 libspeex_encoder_deps="libspeex"
2832 libspeex_encoder_select="audio_frame_queue"
2833 libtheora_encoder_deps="libtheora"
2834 libtwolame_encoder_deps="libtwolame"
2835 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2836 libvorbis_decoder_deps="libvorbis"
2837 libvorbis_encoder_deps="libvorbis"
2838 libvorbis_encoder_select="audio_frame_queue"
2839 libvpx_vp8_decoder_deps="libvpx"
2840 libvpx_vp8_encoder_deps="libvpx"
2841 libvpx_vp9_decoder_deps="libvpx"
2842 libvpx_vp9_encoder_deps="libvpx"
2843 libwavpack_encoder_deps="libwavpack"
2844 libwebp_encoder_deps="libwebp"
2845 libwebp_anim_encoder_deps="libwebp"
2846 libx262_encoder_deps="libx262"
2847 libx264_encoder_deps="libx264"
2848 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2849 libx264rgb_encoder_select="libx264_encoder"
2850 libx265_encoder_deps="libx265"
2851 libxavs_encoder_deps="libxavs"
2852 libxvid_encoder_deps="libxvid"
2853 libzvbi_teletext_decoder_deps="libzvbi"
2854 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2855 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2856 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2857 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2858 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2859
2860 # demuxers / muxers
2861 ac3_demuxer_select="ac3_parser"
2862 asf_demuxer_select="riffdec"
2863 asf_o_demuxer_select="riffdec"
2864 asf_muxer_select="riffenc"
2865 asf_stream_muxer_select="asf_muxer"
2866 avi_demuxer_select="iso_media riffdec exif"
2867 avi_muxer_select="riffenc"
2868 caf_demuxer_select="iso_media riffdec"
2869 dash_muxer_select="mp4_muxer"
2870 dirac_demuxer_select="dirac_parser"
2871 dts_demuxer_select="dca_parser"
2872 dtshd_demuxer_select="dca_parser"
2873 dv_demuxer_select="dvprofile"
2874 dv_muxer_select="dvprofile"
2875 dxa_demuxer_select="riffdec"
2876 eac3_demuxer_select="ac3_parser"
2877 f4v_muxer_select="mov_muxer"
2878 fifo_muxer_deps="threads"
2879 flac_demuxer_select="flac_parser"
2880 hds_muxer_select="flv_muxer"
2881 hls_muxer_select="mpegts_muxer"
2882 image2_alias_pix_demuxer_select="image2_demuxer"
2883 image2_brender_pix_demuxer_select="image2_demuxer"
2884 ipod_muxer_select="mov_muxer"
2885 ismv_muxer_select="mov_muxer"
2886 libnut_demuxer_deps="libnut"
2887 libnut_muxer_deps="libnut"
2888 matroska_audio_muxer_select="matroska_muxer"
2889 matroska_demuxer_select="iso_media riffdec"
2890 matroska_demuxer_suggest="bzlib lzo zlib"
2891 matroska_muxer_select="iso_media riffenc"
2892 mmf_muxer_select="riffenc"
2893 mov_demuxer_select="iso_media riffdec"
2894 mov_demuxer_suggest="zlib"
2895 mov_muxer_select="iso_media riffenc rtpenc_chain"
2896 mp3_demuxer_select="mpegaudio_parser"
2897 mp4_muxer_select="mov_muxer"
2898 mpegts_demuxer_select="iso_media"
2899 mpegts_muxer_select="adts_muxer latm_muxer"
2900 mpegtsraw_demuxer_select="mpegts_demuxer"
2901 mxf_d10_muxer_select="mxf_muxer"
2902 mxf_opatom_muxer_select="mxf_muxer"
2903 nut_muxer_select="riffenc"
2904 nuv_demuxer_select="riffdec"
2905 oga_muxer_select="ogg_muxer"
2906 ogg_demuxer_select="dirac_parse"
2907 ogv_muxer_select="ogg_muxer"
2908 opus_muxer_select="ogg_muxer"
2909 psp_muxer_select="mov_muxer"
2910 rtp_demuxer_select="sdp_demuxer"
2911 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2912 rtsp_demuxer_select="http_protocol rtpdec"
2913 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2914 sap_demuxer_select="sdp_demuxer"
2915 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2916 sdp_demuxer_select="rtpdec"
2917 smoothstreaming_muxer_select="ismv_muxer"
2918 spdif_muxer_select="aac_parser"
2919 spx_muxer_select="ogg_muxer"
2920 swf_demuxer_suggest="zlib"
2921 tak_demuxer_select="tak_parser"
2922 tg2_muxer_select="mov_muxer"
2923 tgp_muxer_select="mov_muxer"
2924 vobsub_demuxer_select="mpegps_demuxer"
2925 w64_demuxer_select="wav_demuxer"
2926 w64_muxer_select="wav_muxer"
2927 wav_demuxer_select="riffdec"
2928 wav_muxer_select="riffenc"
2929 webm_muxer_select="iso_media riffenc"
2930 webm_dash_manifest_demuxer_select="matroska_demuxer"
2931 wtv_demuxer_select="mpegts_demuxer riffdec"
2932 wtv_muxer_select="mpegts_muxer riffenc"
2933 xmv_demuxer_select="riffdec"
2934 xwma_demuxer_select="riffdec"
2935
2936 # indevs / outdevs
2937 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2938 alsa_outdev_deps="alsa_asoundlib_h"
2939 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2940 avfoundation_indev_select="avfoundation"
2941 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2942 caca_outdev_deps="libcaca"
2943 decklink_indev_deps="decklink pthreads"
2944 decklink_indev_extralibs="-lstdc++"
2945 decklink_outdev_deps="decklink pthreads"
2946 decklink_outdev_extralibs="-lstdc++"
2947 dshow_indev_deps="IBaseFilter"
2948 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2949 dv1394_indev_deps="dv1394"
2950 dv1394_indev_select="dv_demuxer"
2951 fbdev_indev_deps="linux_fb_h"
2952 fbdev_outdev_deps="linux_fb_h"
2953 gdigrab_indev_deps="CreateDIBSection"
2954 gdigrab_indev_extralibs="-lgdi32"
2955 gdigrab_indev_select="bmp_decoder"
2956 iec61883_indev_deps="libiec61883"
2957 jack_indev_deps="jack_jack_h"
2958 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2959 lavfi_indev_deps="avfilter"
2960 libcdio_indev_deps="libcdio"
2961 libdc1394_indev_deps="libdc1394"
2962 libv4l2_indev_deps="libv4l2"
2963 openal_indev_deps="openal"
2964 opengl_outdev_deps="opengl"
2965 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2966 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2967 pulse_indev_deps="libpulse"
2968 pulse_outdev_deps="libpulse"
2969 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2970 qtkit_indev_select="qtkit"
2971 sdl2_outdev_deps="sdl2"
2972 sndio_indev_deps="sndio_h"
2973 sndio_outdev_deps="sndio_h"
2974 v4l_indev_deps="linux_videodev_h"
2975 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2976 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2977 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2978 vfwcap_indev_extralibs="-lavicap32"
2979 x11grab_indev_deps="x11grab"
2980 x11grab_xcb_indev_deps="libxcb"
2981 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2982 xv_outdev_extralibs="-lXv -lX11 -lXext"
2983
2984 # protocols
2985 async_protocol_deps="threads"
2986 bluray_protocol_deps="libbluray"
2987 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2988 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2989 ffrtmpcrypt_protocol_select="tcp_protocol"
2990 ffrtmphttp_protocol_deps="!librtmp_protocol"
2991 ffrtmphttp_protocol_select="http_protocol"
2992 ftp_protocol_select="tcp_protocol"
2993 gopher_protocol_select="network"
2994 http_protocol_select="tcp_protocol"
2995 httpproxy_protocol_select="tcp_protocol"
2996 https_protocol_select="tls_protocol"
2997 icecast_protocol_select="http_protocol"
2998 librtmp_protocol_deps="librtmp"
2999 librtmpe_protocol_deps="librtmp"
3000 librtmps_protocol_deps="librtmp"
3001 librtmpt_protocol_deps="librtmp"
3002 librtmpte_protocol_deps="librtmp"
3003 libsmbclient_protocol_deps="libsmbclient gplv3"
3004 libssh_protocol_deps="libssh"
3005 mmsh_protocol_select="http_protocol"
3006 mmst_protocol_select="network"
3007 rtmp_protocol_deps="!librtmp_protocol"
3008 rtmp_protocol_select="tcp_protocol"
3009 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3010 rtmps_protocol_deps="!librtmp_protocol"
3011 rtmps_protocol_select="tls_protocol"
3012 rtmpt_protocol_select="ffrtmphttp_protocol"
3013 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3014 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3015 rtp_protocol_select="udp_protocol"
3016 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3017 sctp_protocol_select="network"
3018 srtp_protocol_select="rtp_protocol srtp"
3019 tcp_protocol_select="network"
3020 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3021 tls_gnutls_protocol_select="tcp_protocol"
3022 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3023 tls_openssl_protocol_select="tcp_protocol"
3024 tls_schannel_protocol_deps="schannel"
3025 tls_schannel_protocol_select="tcp_protocol"
3026 tls_securetransport_protocol_deps="securetransport"
3027 tls_securetransport_protocol_select="tcp_protocol"
3028 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3029 udp_protocol_select="network"
3030 udplite_protocol_select="network"
3031 unix_protocol_deps="sys_un_h"
3032 unix_protocol_select="network"
3033
3034 # filters
3035 afftfilt_filter_deps="avcodec"
3036 afftfilt_filter_select="fft"
3037 amovie_filter_deps="avcodec avformat"
3038 aresample_filter_deps="swresample"
3039 ass_filter_deps="libass"
3040 asyncts_filter_deps="avresample"
3041 atempo_filter_deps="avcodec"
3042 atempo_filter_select="rdft"
3043 azmq_filter_deps="libzmq"
3044 blackframe_filter_deps="gpl"
3045 boxblur_filter_deps="gpl"
3046 bs2b_filter_deps="libbs2b"
3047 colormatrix_filter_deps="gpl"
3048 cover_rect_filter_deps="avcodec avformat gpl"
3049 cropdetect_filter_deps="gpl"
3050 delogo_filter_deps="gpl"
3051 deshake_filter_select="pixelutils"
3052 drawtext_filter_deps="libfreetype"
3053 eq_filter_deps="gpl"
3054 fftfilt_filter_deps="avcodec"
3055 fftfilt_filter_select="rdft"
3056 find_rect_filter_deps="avcodec avformat gpl"
3057 firequalizer_filter_deps="avcodec"
3058 firequalizer_filter_select="rdft"
3059 flite_filter_deps="libflite"
3060 framerate_filter_select="pixelutils"
3061 frei0r_filter_deps="frei0r dlopen"
3062 frei0r_src_filter_deps="frei0r dlopen"
3063 fspp_filter_deps="gpl"
3064 geq_filter_deps="gpl"
3065 histeq_filter_deps="gpl"
3066 hqdn3d_filter_deps="gpl"
3067 interlace_filter_deps="gpl"
3068 kerndeint_filter_deps="gpl"
3069 ladspa_filter_deps="ladspa dlopen"
3070 mcdeint_filter_deps="avcodec gpl"
3071 movie_filter_deps="avcodec avformat"
3072 mpdecimate_filter_deps="gpl"
3073 mpdecimate_filter_select="pixelutils"
3074 mptestsrc_filter_deps="gpl"
3075 negate_filter_deps="lut_filter"
3076 nnedi_filter_deps="gpl"
3077 ocr_filter_deps="libtesseract"
3078 ocv_filter_deps="libopencv"
3079 owdenoise_filter_deps="gpl"
3080 pan_filter_deps="swresample"
3081 perspective_filter_deps="gpl"
3082 phase_filter_deps="gpl"
3083 pp7_filter_deps="gpl"
3084 pp_filter_deps="gpl postproc"
3085 pullup_filter_deps="gpl"
3086 removelogo_filter_deps="avcodec avformat swscale"
3087 repeatfields_filter_deps="gpl"
3088 resample_filter_deps="avresample"
3089 rubberband_filter_deps="librubberband"
3090 sab_filter_deps="gpl swscale"
3091 scale2ref_filter_deps="swscale"
3092 scale_filter_deps="swscale"
3093 select_filter_select="pixelutils"
3094 showcqt_filter_deps="avcodec avformat swscale"
3095 showcqt_filter_select="fft"
3096 showfreqs_filter_deps="avcodec"
3097 showfreqs_filter_select="fft"
3098 showspectrum_filter_deps="avcodec"
3099 showspectrum_filter_select="fft"
3100 showspectrumpic_filter_deps="avcodec"
3101 showspectrumpic_filter_select="fft"
3102 smartblur_filter_deps="gpl swscale"
3103 sofalizer_filter_deps="netcdf avcodec"
3104 sofalizer_filter_select="fft"
3105 spectrumsynth_filter_deps="avcodec"
3106 spectrumsynth_filter_select="fft"
3107 spp_filter_deps="gpl avcodec"
3108 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3109 stereo3d_filter_deps="gpl"
3110 subtitles_filter_deps="avformat avcodec libass"
3111 super2xsai_filter_deps="gpl"
3112 pixfmts_super2xsai_test_deps="super2xsai_filter"
3113 tinterlace_filter_deps="gpl"
3114 tinterlace_merge_test_deps="tinterlace_filter"
3115 tinterlace_pad_test_deps="tinterlace_filter"
3116 uspp_filter_deps="gpl avcodec"
3117 vaguedenoiser_filter_deps="gpl"
3118 vidstabdetect_filter_deps="libvidstab"
3119 vidstabtransform_filter_deps="libvidstab"
3120 zmq_filter_deps="libzmq"
3121 zoompan_filter_deps="swscale"
3122 zscale_filter_deps="libzimg"
3123 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3124
3125 # examples
3126 avio_dir_cmd_deps="avformat avutil"
3127 avio_reading_deps="avformat avcodec avutil"
3128 decoding_encoding_example_deps="avcodec avformat avutil"
3129 demuxing_decoding_example_deps="avcodec avformat avutil"
3130 extract_mvs_example_deps="avcodec avformat avutil"
3131 filter_audio_example_deps="avfilter avutil"
3132 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3133 filtering_video_example_deps="avfilter avcodec avformat avutil"
3134 http_multiclient_example_deps="avformat avutil fork"
3135 metadata_example_deps="avformat avutil"
3136 muxing_example_deps="avcodec avformat avutil swscale"
3137 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3138 remuxing_example_deps="avcodec avformat avutil"
3139 resampling_audio_example_deps="avutil swresample"
3140 scaling_video_example_deps="avutil swscale"
3141 transcode_aac_example_deps="avcodec avformat swresample"
3142 transcoding_example_deps="avfilter avcodec avformat avutil"
3143
3144 # libraries, in linking order
3145 avcodec_deps="avutil"
3146 avdevice_deps="avformat avcodec avutil"
3147 avfilter_deps="avutil"
3148 avformat_deps="avcodec avutil"
3149 avresample_deps="avutil"
3150 postproc_deps="avutil gpl"
3151 swresample_deps="avutil"
3152 swscale_deps="avutil"
3153
3154 # programs
3155 ffmpeg_deps="avcodec avfilter avformat swresample"
3156 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3157                null_filter
3158                setpts_filter trim_filter"
3159 ffplay_deps="avcodec avformat swscale swresample sdl2"
3160 ffplay_libs='$sdl2_libs'
3161 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3162 ffprobe_deps="avcodec avformat"
3163 ffserver_deps="avformat fork sarestart"
3164 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3165
3166 # documentation
3167 podpages_deps="perl"
3168 manpages_deps="perl pod2man"
3169 htmlpages_deps="perl"
3170 htmlpages_deps_any="makeinfo_html texi2html"
3171 txtpages_deps="perl makeinfo"
3172 doc_deps_any="manpages htmlpages podpages txtpages"
3173
3174 # default parameters
3175
3176 logfile="config.log"
3177
3178 # installation paths
3179 prefix_default="/usr/local"
3180 bindir_default='${prefix}/bin'
3181 datadir_default='${prefix}/share/ffmpeg'
3182 docdir_default='${prefix}/share/doc/ffmpeg'
3183 incdir_default='${prefix}/include'
3184 libdir_default='${prefix}/lib'
3185 mandir_default='${prefix}/share/man'
3186
3187 # toolchain
3188 ar_default="ar"
3189 cc_default="gcc"
3190 cxx_default="g++"
3191 host_cc_default="gcc"
3192 cp_f="cp -f"
3193 doxygen_default="doxygen"
3194 install="install"
3195 ln_s_default="ln -s -f"
3196 nm_default="nm -g"
3197 objformat="elf"
3198 pkg_config_default=pkg-config
3199 ranlib_default="ranlib"
3200 strip_default="strip"
3201 version_script='--version-script'
3202 yasmexe_default="yasm"
3203 windres_default="windres"
3204
3205 # OS
3206 target_os_default=$(tolower $(uname -s))
3207 host_os=$target_os_default
3208
3209 # machine
3210 if test "$target_os_default" = aix; then
3211     arch_default=$(uname -p)
3212     strip_default="strip -X32_64"
3213 else
3214     arch_default=$(uname -m)
3215 fi
3216 cpu="generic"
3217 intrinsics="none"
3218
3219 # configurable options
3220 enable $PROGRAM_LIST
3221 enable $DOCUMENT_LIST
3222 enable $EXAMPLE_LIST
3223 enable $(filter_out avresample $LIBRARY_LIST)
3224 enable stripping
3225
3226 enable asm
3227 enable debug
3228 enable doc
3229 enable faan faandct faanidct
3230 enable optimizations
3231 enable runtime_cpudetect
3232 enable safe_bitstream_reader
3233 enable static
3234 enable swscale_alpha
3235 enable valgrind_backtrace
3236
3237 sws_max_filter_size_default=256
3238 set_default sws_max_filter_size
3239
3240 # Enable platform codecs by default.
3241 enable audiotoolbox
3242
3243 # Enable hwaccels by default.
3244 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3245 enable xlib
3246
3247 enable cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3248
3249 # build settings
3250 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3251 LIBPREF="lib"
3252 LIBSUF=".a"
3253 FULLNAME='$(NAME)$(BUILDSUF)'
3254 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3255 SLIBPREF="lib"
3256 SLIBSUF=".so"
3257 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3258 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3259 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3260 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3261 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3262 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3263 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3264
3265 asflags_filter=echo
3266 cflags_filter=echo
3267 ldflags_filter=echo
3268
3269 AS_C='-c'
3270 AS_O='-o $@'
3271 CC_C='-c'
3272 CC_E='-E -o $@'
3273 CC_O='-o $@'
3274 CXX_C='-c'
3275 CXX_O='-o $@'
3276 OBJCC_C='-c'
3277 OBJCC_E='-E -o $@'
3278 OBJCC_O='-o $@'
3279 LD_O='-o $@'
3280 LD_LIB='-l%'
3281 LD_PATH='-L'
3282 HOSTCC_C='-c'
3283 HOSTCC_E='-E -o $@'
3284 HOSTCC_O='-o $@'
3285 HOSTLD_O='-o $@'
3286
3287 host_libs='-lm'
3288 host_cflags_filter=echo
3289 host_ldflags_filter=echo
3290
3291 target_path='$(CURDIR)'
3292
3293 # since the object filename is not given with the -MM flag, the compiler
3294 # is only able to print the basename, and we must add the path ourselves
3295 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3296 DEPFLAGS='-MM'
3297
3298 # find source path
3299 if test -f configure; then
3300     source_path=.
3301 else
3302     source_path=$(cd $(dirname "$0"); pwd)
3303     case "$source_path" in
3304         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3305     esac
3306     test -e "$source_path/config.h" &&
3307         die "Out of tree builds are impossible with config.h in source dir."
3308 fi
3309
3310 for v in "$@"; do
3311     r=${v#*=}
3312     l=${v%"$r"}
3313     r=$(sh_quote "$r")
3314     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3315 done
3316
3317 find_things(){
3318     thing=$1
3319     pattern=$2
3320     file=$source_path/$3
3321     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3322 }
3323
3324 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3325 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3326 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3327 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3328 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3329 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3330 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3331 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3332 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3333
3334 find_things_extern(){
3335     thing=$1
3336     pattern=$2
3337     file=$source_path/$3
3338     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3339 }
3340
3341 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3342 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3343
3344 ALL_COMPONENTS="
3345     $BSF_LIST
3346     $DECODER_LIST
3347     $DEMUXER_LIST
3348     $ENCODER_LIST
3349     $FILTER_LIST
3350     $HWACCEL_LIST
3351     $INDEV_LIST
3352     $MUXER_LIST
3353     $OUTDEV_LIST
3354     $PARSER_LIST
3355     $PROTOCOL_LIST
3356 "
3357
3358 for n in $COMPONENT_LIST; do
3359     v=$(toupper ${n%s})_LIST
3360     eval enable \$$v
3361     eval ${n}_if_any="\$$v"
3362 done
3363
3364 enable $ARCH_EXT_LIST
3365
3366 die_unknown(){
3367     echo "Unknown option \"$1\"."
3368     echo "See $0 --help for available options."
3369     exit 1
3370 }
3371
3372 print_in_columns() {
3373     cols=$(expr $ncols / 24)
3374     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3375 }
3376
3377 show_list() {
3378     suffix=_$1
3379     shift
3380     echo $* | sed s/$suffix//g | print_in_columns
3381     exit 0
3382 }
3383
3384 rand_list(){
3385     IFS=', '
3386     set -- $*
3387     unset IFS
3388     for thing; do
3389         comp=${thing%:*}
3390         prob=${thing#$comp}
3391         prob=${prob#:}
3392         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3393         echo "prob ${prob:-0.5}"
3394         printf '%s\n' $comp
3395     done
3396 }
3397
3398 do_random(){
3399     action=$1
3400     shift
3401     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3402     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3403 }
3404
3405 for opt do
3406     optval="${opt#*=}"
3407     case "$opt" in
3408         --extra-ldflags=*)
3409             add_ldflags $optval
3410         ;;
3411         --extra-ldexeflags=*)
3412             add_ldexeflags $optval
3413         ;;
3414         --extra-ldlibflags=*)
3415             add_ldlibflags $optval
3416         ;;
3417         --extra-libs=*)
3418             add_extralibs $optval
3419         ;;
3420         --disable-devices)
3421             disable $INDEV_LIST $OUTDEV_LIST
3422         ;;
3423         --enable-debug=*)
3424             debuglevel="$optval"
3425         ;;
3426         --disable-programs)
3427             disable $PROGRAM_LIST
3428         ;;
3429         --disable-everything)
3430             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3431         ;;
3432         --disable-all)
3433             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3434             disable $LIBRARY_LIST $PROGRAM_LIST doc
3435             enable avutil
3436         ;;
3437         --enable-random|--disable-random)
3438             action=${opt%%-random}
3439             do_random ${action#--} $COMPONENT_LIST
3440         ;;
3441         --enable-random=*|--disable-random=*)
3442             action=${opt%%-random=*}
3443             do_random ${action#--} $optval
3444         ;;
3445         --enable-*=*|--disable-*=*)
3446             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3447             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3448             eval list=\$$(toupper $thing)_LIST
3449             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3450             list=$(filter "$name" $list)
3451             [ "$list" = "" ] && warn "Option $opt did not match anything"
3452             $action $list
3453         ;;
3454         --enable-?*|--disable-?*)
3455             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3456             if is_in $option $COMPONENT_LIST; then
3457                 test $action = disable && action=unset
3458                 eval $action \$$(toupper ${option%s})_LIST
3459             elif is_in $option $CMDLINE_SELECT; then
3460                 $action $option
3461             else
3462                 die_unknown $opt
3463             fi
3464         ;;
3465         --list-*)
3466             NAME="${opt#--list-}"
3467             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3468             NAME=${NAME%s}
3469             eval show_list $NAME \$$(toupper $NAME)_LIST
3470         ;;
3471         --help|-h) show_help
3472         ;;
3473         --fatal-warnings) enable fatal_warnings
3474         ;;
3475         *)
3476             optname="${opt%%=*}"
3477             optname="${optname#--}"
3478             optname=$(echo "$optname" | sed 's/-/_/g')
3479             if is_in $optname $CMDLINE_SET; then
3480                 eval $optname='$optval'
3481             elif is_in $optname $CMDLINE_APPEND; then
3482                 append $optname "$optval"
3483             else
3484                 die_unknown $opt
3485             fi
3486         ;;
3487     esac
3488 done
3489
3490 for e in $env; do
3491     eval "export $e"
3492 done
3493
3494 disabled logging && logfile=/dev/null
3495
3496 # Disable all the library-specific components if the library itself
3497 # is disabled, see AVCODEC_LIST and following _LIST variables.
3498
3499 disable_components(){
3500     disabled ${1} && disable $(
3501         eval components="\$$(toupper ${1})_COMPONENTS"
3502         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3503     )
3504 }
3505
3506 map 'disable_components $v' $LIBRARY_LIST
3507
3508 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3509 set >> $logfile
3510
3511 test -n "$valgrind" && toolchain="valgrind-memcheck"
3512
3513 case "$toolchain" in
3514     *-asan)
3515         cc_default="${toolchain%-asan}"
3516         add_cflags  -fsanitize=address
3517         add_ldflags -fsanitize=address
3518     ;;
3519     *-msan)
3520         cc_default="${toolchain%-msan}"
3521         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3522         add_ldflags -fsanitize=memory
3523     ;;
3524     *-tsan)
3525         cc_default="${toolchain%-tsan}"
3526         add_cflags  -fsanitize=thread -pie
3527         add_ldflags -fsanitize=thread -pie
3528         case "$toolchain" in
3529             gcc-tsan)
3530                 add_cflags  -fPIC
3531                 add_ldflags -fPIC
3532                 ;;
3533         esac
3534     ;;
3535     *-usan)
3536         cc_default="${toolchain%-usan}"
3537         add_cflags  -fsanitize=undefined
3538         add_ldflags -fsanitize=undefined
3539     ;;
3540     valgrind-*)
3541         target_exec_default="valgrind"
3542         case "$toolchain" in
3543             valgrind-massif)
3544                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3545                 ;;
3546             valgrind-memcheck)
3547                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3548                 ;;
3549         esac
3550     ;;
3551     msvc)
3552         # Check whether the current MSVC version needs the C99 converter.
3553         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3554         # support enough of C99 to build ffmpeg. Default to the new
3555         # behaviour if the regexp was unable to match anything, since this
3556         # successfully parses the version number of existing supported
3557         # versions that require the converter (MSVC 2010 and 2012).
3558         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3559         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3560             cc_default="cl"
3561         else
3562             cc_default="c99wrap cl"
3563         fi
3564         ld_default="$source_path/compat/windows/mslink"
3565         nm_default="dumpbin -symbols"
3566         ar_default="lib"
3567         case "$arch" in
3568         arm*)
3569             as_default="armasm"
3570             ;;
3571         esac
3572         target_os_default="win32"
3573         # Use a relative path for TMPDIR. This makes sure all the
3574         # ffconf temp files are written with a relative path, avoiding
3575         # issues with msys/win32 path conversion for MSVC parameters
3576         # such as -Fo<file> or -out:<file>.
3577         TMPDIR=.
3578     ;;
3579     icl)
3580         cc_default="icl"
3581         ld_default="xilink"
3582         nm_default="dumpbin -symbols"
3583         ar_default="xilib"
3584         target_os_default="win32"
3585         TMPDIR=.
3586     ;;
3587     gcov)
3588         add_cflags  -fprofile-arcs -ftest-coverage
3589         add_ldflags -fprofile-arcs -ftest-coverage
3590     ;;
3591     llvm-cov)
3592         add_cflags -fprofile-arcs -ftest-coverage
3593         add_ldflags --coverage
3594     ;;
3595     hardened)
3596         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3597         add_cflags   -fno-strict-overflow -fstack-protector-all
3598         add_ldflags  -Wl,-z,relro -Wl,-z,now
3599         add_cflags   -fPIE
3600         add_ldexeflags -fPIE -pie
3601     ;;
3602     ?*)
3603         die "Unknown toolchain $toolchain"
3604     ;;
3605 esac
3606
3607 test -n "$cross_prefix" && enable cross_compile
3608
3609 if enabled cross_compile; then
3610     test -n "$arch" && test -n "$target_os" ||
3611         die "Must specify target arch and OS when cross-compiling"
3612 fi
3613
3614 ar_default="${cross_prefix}${ar_default}"
3615 cc_default="${cross_prefix}${cc_default}"
3616 cxx_default="${cross_prefix}${cxx_default}"
3617 nm_default="${cross_prefix}${nm_default}"
3618 pkg_config_default="${cross_prefix}${pkg_config_default}"
3619 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3620     ranlib_default="${cross_prefix}${ranlib_default} -D"
3621 else
3622     ranlib_default="${cross_prefix}${ranlib_default}"
3623 fi
3624 strip_default="${cross_prefix}${strip_default}"
3625 windres_default="${cross_prefix}${windres_default}"
3626
3627 sysinclude_default="${sysroot}/usr/include"
3628
3629 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3630     target_exec target_os yasmexe
3631 enabled cross_compile || host_cc_default=$cc
3632 set_default host_cc
3633
3634 pkg_config_fail_message=""
3635 if ! $pkg_config --version >/dev/null 2>&1; then
3636     warn "$pkg_config not found, library detection may fail."
3637     pkg_config=false
3638 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3639     pkg_config_fail_message="
3640 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3641 fi
3642
3643 if test $doxygen != $doxygen_default && \
3644   ! $doxygen --version >/dev/null 2>&1; then
3645     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3646 fi
3647
3648 exesuf() {
3649     case $1 in
3650         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3651     esac
3652 }
3653
3654 EXESUF=$(exesuf $target_os)
3655 HOSTEXESUF=$(exesuf $host_os)
3656
3657 # set temporary file name
3658 : ${TMPDIR:=$TEMPDIR}
3659 : ${TMPDIR:=$TMP}
3660 : ${TMPDIR:=/tmp}
3661
3662 if [ -n "$tempprefix" ] ; then
3663     mktemp(){
3664         echo $tempprefix.${HOSTNAME}.${UID}
3665     }
3666 elif ! check_cmd mktemp -u XXXXXX; then
3667     # simple replacement for missing mktemp
3668     # NOT SAFE FOR GENERAL USE
3669     mktemp(){
3670         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3671     }
3672 fi
3673
3674 tmpfile(){
3675     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3676         (set -C; exec > $tmp) 2>/dev/null ||
3677         die "Unable to create temporary file in $TMPDIR."
3678     append TMPFILES $tmp
3679     eval $1=$tmp
3680 }
3681
3682 trap 'rm -f -- $TMPFILES' EXIT
3683
3684 tmpfile TMPASM .asm
3685 tmpfile TMPC   .c
3686 tmpfile TMPCPP .cpp
3687 tmpfile TMPE   $EXESUF
3688 tmpfile TMPH   .h
3689 tmpfile TMPM   .m
3690 tmpfile TMPO   .o
3691 tmpfile TMPS   .S
3692 tmpfile TMPSH  .sh
3693 tmpfile TMPV   .ver
3694
3695 unset -f mktemp
3696
3697 chmod +x $TMPE
3698
3699 # make sure we can execute files in $TMPDIR
3700 cat > $TMPSH 2>> $logfile <<EOF
3701 #! /bin/sh
3702 EOF
3703 chmod +x $TMPSH >> $logfile 2>&1
3704 if ! $TMPSH >> $logfile 2>&1; then
3705     cat <<EOF
3706 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3707 variable to another directory and make sure that it is not mounted noexec.
3708 EOF
3709     die "Sanity test failed."
3710 fi
3711
3712 armasm_flags(){
3713     for flag; do
3714         case $flag in
3715             # Filter out MSVC cl.exe options from cflags that shouldn't
3716             # be passed to gas-preprocessor
3717             -M[TD]*)                                            ;;
3718             *)                  echo $flag                      ;;
3719         esac
3720    done
3721 }
3722
3723 ccc_flags(){
3724     for flag; do
3725         case $flag in
3726             -std=c99)           echo -c99                       ;;
3727             -mcpu=*)            echo -arch ${flag#*=}           ;;
3728             -mieee)             echo -ieee                      ;;
3729             -O*|-fast)          echo $flag                      ;;
3730             -fno-math-errno)    echo -assume nomath_errno       ;;
3731             -g)                 echo -g3                        ;;
3732             -Wall)              echo -msg_enable level2         ;;
3733             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3734             -Wl,*)              echo $flag                      ;;
3735             -f*|-W*)                                            ;;
3736             *)                  echo $flag                      ;;
3737         esac
3738    done
3739 }
3740
3741 cparser_flags(){
3742     for flag; do
3743         case $flag in
3744             -Wno-switch)             echo -Wno-switch-enum ;;
3745             -Wno-format-zero-length) ;;
3746             -Wdisabled-optimization) ;;
3747             -Wno-pointer-sign)       echo -Wno-other ;;
3748             *)                       echo $flag ;;
3749         esac
3750     done
3751 }
3752
3753 msvc_common_flags(){
3754     for flag; do
3755         case $flag in
3756             # In addition to specifying certain flags under the compiler
3757             # specific filters, they must be specified here as well or else the
3758             # generic catch all at the bottom will print the original flag.
3759             -Wall)                ;;
3760             -std=c99)             ;;
3761             # Common flags
3762             -fomit-frame-pointer) ;;
3763             -g)                   echo -Z7 ;;
3764             -fno-math-errno)      ;;
3765             -fno-common)          ;;
3766             -fno-signed-zeros)    ;;
3767             -fPIC)                ;;
3768             -mthumb)              ;;
3769             -march=*)             ;;
3770             -lz)                  echo zlib.lib ;;
3771             -lavifil32)           echo vfw32.lib ;;
3772             -lavicap32)           echo vfw32.lib user32.lib ;;
3773             -lx264)               echo libx264.lib ;;
3774             -l*)                  echo ${flag#-l}.lib ;;
3775             -LARGEADDRESSAWARE)   echo $flag ;;
3776             -L*)                  echo -libpath:${flag#-L} ;;
3777             *)                    echo $flag ;;
3778         esac
3779     done
3780 }
3781
3782 msvc_flags(){
3783     msvc_common_flags "$@"
3784     for flag; do
3785         case $flag in
3786             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3787                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3788                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3789                                        -wd4307 \
3790                                        -wd4273 -wd4554 -wd4701 ;;
3791         esac
3792     done
3793 }
3794
3795 icl_flags(){
3796     msvc_common_flags "$@"
3797     for flag; do
3798         case $flag in
3799             # Despite what Intel's documentation says -Wall, which is supported
3800             # on Windows, does enable remarks so disable them here.
3801             -Wall)                echo $flag -Qdiag-disable:remark ;;
3802             -std=c99)             echo -Qstd=c99 ;;
3803             -flto)                echo -ipo ;;
3804         esac
3805     done
3806 }
3807
3808 icc_flags(){
3809     for flag; do
3810         case $flag in
3811             -flto)                echo -ipo ;;
3812             *)                    echo $flag ;;
3813         esac
3814     done
3815 }
3816
3817 pgi_flags(){
3818     for flag; do
3819         case $flag in
3820             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3821             -fomit-frame-pointer) echo -Mnoframe ;;
3822             -g)                   echo -gopt ;;
3823             *)                    echo $flag ;;
3824         esac
3825     done
3826 }
3827
3828 suncc_flags(){
3829     for flag; do
3830         case $flag in
3831             -march=*|-mcpu=*)
3832                 case "${flag#*=}" in
3833                     native)                   echo -xtarget=native       ;;
3834                     v9|niagara)               echo -xarch=sparc          ;;
3835                     ultrasparc)               echo -xarch=sparcvis       ;;
3836                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3837                     i586|pentium)             echo -xchip=pentium        ;;
3838                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3839                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3840                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3841                     pentium4*)          echo -xtarget=pentium4           ;;
3842                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3843                     *-sse3)             echo -xarch=sse3                 ;;
3844                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3845                     bonnell)                   echo -xarch=ssse3         ;;
3846                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3847                     westmere)                  echo -xtarget=westmere    ;;
3848                     silvermont)                echo -xarch=sse4_2        ;;
3849                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3850                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3851                                                echo -xarch=avx           ;;
3852                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3853                     btver1)                    echo -xarch=amdsse4a      ;;
3854                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3855                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3856                     k8|opteron|athlon64|athlon-fx)
3857                                                echo -xarch=sse2a         ;;
3858                     athlon*)                   echo -xarch=pentium_proa  ;;
3859                 esac
3860                 ;;
3861             -std=c99)             echo -xc99              ;;
3862             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3863             -fPIC)                echo -KPIC -xcode=pic32 ;;
3864             -W*,*)                echo $flag              ;;
3865             -f*-*|-W*|-mimpure-text)                      ;;
3866             -shared)              echo -G                 ;;
3867             *)                    echo $flag              ;;
3868         esac
3869     done
3870 }
3871
3872 tms470_flags(){
3873     for flag; do
3874         case $flag in
3875             -march=*|-mcpu=*)
3876                 case "${flag#*=}" in
3877                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3878                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3879                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3880                     armv6*|arm11*)          echo -mv=6   ;;
3881                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3882                                             echo -mv=5e  ;;
3883                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3884                 esac
3885                 ;;
3886             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3887             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3888             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3889             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3890             -msoft-float)   echo --float_support=vfplib       ;;
3891             -O[0-3]|-mf=*)  echo $flag                        ;;
3892             -g)             echo -g -mn                       ;;
3893             -pds=*)         echo $flag                        ;;
3894             -D*|-I*)        echo $flag                        ;;
3895             --gcc|--abi=*)  echo $flag                        ;;
3896             -me)            echo $flag                        ;;
3897         esac
3898     done
3899 }
3900
3901 probe_cc(){
3902     pfx=$1
3903     _cc=$2
3904     first=$3
3905
3906     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3907     unset _ld_o _ldflags _ld_lib _ld_path
3908     unset _depflags _DEPCMD _DEPFLAGS
3909     _flags_filter=echo
3910
3911     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3912         true # no-op to avoid reading stdin in following checks
3913     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3914         _type=llvm_gcc
3915         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3916         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3917         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3918         _cflags_speed='-O3'
3919         _cflags_size='-Os'
3920     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3921         _type=gcc
3922         gcc_version=$($_cc --version | head -n1)
3923         gcc_basever=$($_cc -dumpversion)
3924         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3925         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3926         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3927         case $gcc_basever in
3928             2) ;;
3929             2.*) ;;
3930             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3931         esac
3932         if [ "$first" = true ]; then
3933             case $gcc_basever in
3934                 4.2*)
3935                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3936             esac
3937         fi
3938         _cflags_speed='-O3'
3939         _cflags_size='-Os'
3940     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3941         _type=icc
3942         _ident=$($_cc --version | head -n1)
3943         _depflags='-MMD'
3944         _cflags_speed='-O3'
3945         _cflags_size='-Os'
3946         _cflags_noopt='-O1'
3947         _flags_filter=icc_flags
3948     elif $_cc -v 2>&1 | grep -q xlc; then
3949         _type=xlc
3950         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3951         _cflags_speed='-O5'
3952         _cflags_size='-O5 -qcompact'
3953     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3954         _type=ccc
3955         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3956         _DEPFLAGS='-M'
3957         _cflags_speed='-fast'
3958         _cflags_size='-O1'
3959         _flags_filter=ccc_flags
3960     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3961         test -d "$sysroot" || die "No valid sysroot specified."
3962         _type=armcc
3963         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3964         armcc_conf="$PWD/armcc.conf"
3965         $_cc --arm_linux_configure                 \
3966              --arm_linux_config_file="$armcc_conf" \
3967              --configure_sysroot="$sysroot"        \
3968              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3969              die "Error creating armcc configuration file."
3970         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3971         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3972         as_default="${cross_prefix}gcc"
3973         _depflags='-MMD'
3974         _cflags_speed='-O3'
3975         _cflags_size='-Os'
3976     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3977         _type=tms470
3978         _ident=$($_cc -version | head -n1 | tr -s ' ')
3979         _flags='--gcc --abi=eabi -me'
3980         _cc_e='-ppl -fe=$@'
3981         _cc_o='-fe=$@'
3982         _depflags='-ppa -ppd=$(@:.o=.d)'
3983         _cflags_speed='-O3 -mf=5'
3984         _cflags_size='-O3 -mf=2'
3985         _flags_filter=tms470_flags
3986     elif $_cc -v 2>&1 | grep -q clang; then
3987         _type=clang
3988         _ident=$($_cc --version 2>/dev/null | head -n1)
3989         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3990         _cflags_speed='-O3'
3991         _cflags_size='-Os'
3992     elif $_cc -V 2>&1 | grep -q Sun; then
3993         _type=suncc
3994         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3995         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3996         _DEPFLAGS='-xM1 -xc99'
3997         _ldflags='-std=c99'
3998         _cflags_speed='-O5'
3999         _cflags_size='-O5 -xspace'
4000         _flags_filter=suncc_flags
4001     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4002         _type=pathscale
4003         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4004         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4005         _cflags_speed='-O2'
4006         _cflags_size='-Os'
4007         _flags_filter='filter_out -Wdisabled-optimization'
4008     elif $_cc -v 2>&1 | grep -q Open64; then
4009         _type=open64
4010         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4011         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4012         _cflags_speed='-O2'
4013         _cflags_size='-Os'
4014         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4015     elif $_cc -V 2>&1 | grep -q Portland; then
4016         _type=pgi
4017         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4018         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4019         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4020         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4021         _cflags_noopt="-O"
4022         _flags_filter=pgi_flags
4023     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4024         _type=armasm
4025         _ident=$($_cc | head -n1)
4026         # 4509: "This form of conditional instruction is deprecated"
4027         _flags="-nologo -ignore 4509"
4028         _flags_filter=armasm_flags
4029     elif $_cc 2>&1 | grep -q Intel; then
4030         _type=icl
4031         _ident=$($_cc 2>&1 | head -n1)
4032         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4033         # Not only is O3 broken on 13.x+ but it is slower on all previous
4034         # versions (tested) as well.
4035         _cflags_speed="-O2"
4036         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4037         if $_cc 2>&1 | grep -q Linker; then
4038             _ld_o='-out:$@'
4039         else
4040             _ld_o='-Fe$@'
4041         fi
4042         _cc_o='-Fo$@'
4043         _cc_e='-P'
4044         _flags_filter=icl_flags
4045         _ld_lib='lib%.a'
4046         _ld_path='-libpath:'
4047         # -Qdiag-error to make icl error when seeing certain unknown arguments
4048         _flags='-nologo -Qdiag-error:4044,10157'
4049         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4050         # with MSVC which enables it by default.
4051         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4052         disable stripping
4053     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4054         _type=msvc
4055         _ident=$($_cc 2>&1 | head -n1)
4056         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4057         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4058         _cflags_speed="-O2"
4059         _cflags_size="-O1"
4060         if $_cc -nologo- 2>&1 | grep -q Linker; then
4061             _ld_o='-out:$@'
4062         else
4063             _ld_o='-Fe$@'
4064         fi
4065         _cc_o='-Fo$@'
4066         _cc_e='-P -Fi$@'
4067         _flags_filter=msvc_flags
4068         _ld_lib='lib%.a'
4069         _ld_path='-libpath:'
4070         _flags='-nologo'
4071         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4072         disable stripping
4073     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4074         _type=cparser
4075         _ident=$($_cc --version | head -n1)
4076         _depflags='-MMD'
4077         _cflags_speed='-O4'
4078         _cflags_size='-O2'
4079         _flags_filter=cparser_flags
4080     fi
4081
4082     eval ${pfx}_type=\$_type
4083     eval ${pfx}_ident=\$_ident
4084 }
4085
4086 set_ccvars(){
4087     eval ${1}_C=\${_cc_c-\${${1}_C}}
4088     eval ${1}_E=\${_cc_e-\${${1}_E}}
4089     eval ${1}_O=\${_cc_o-\${${1}_O}}
4090
4091     if [ -n "$_depflags" ]; then
4092         eval ${1}_DEPFLAGS=\$_depflags
4093     else
4094         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4095         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4096         eval DEP${1}FLAGS=\$_flags
4097     fi
4098 }
4099
4100 probe_cc cc "$cc" "true"
4101 cflags_filter=$_flags_filter
4102 cflags_speed=$_cflags_speed
4103 cflags_size=$_cflags_size
4104 cflags_noopt=$_cflags_noopt
4105 add_cflags $_flags $_cflags
4106 cc_ldflags=$_ldflags
4107 set_ccvars CC
4108
4109 probe_cc hostcc "$host_cc"
4110 host_cflags_filter=$_flags_filter
4111 add_host_cflags  $_flags $_cflags
4112 set_ccvars HOSTCC
4113
4114 test -n "$cc_type" && enable $cc_type ||
4115     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4116
4117 : ${as_default:=$cc}
4118 : ${objcc_default:=$cc}
4119 : ${dep_cc_default:=$cc}
4120 : ${ld_default:=$cc}
4121 : ${host_ld_default:=$host_cc}
4122 set_default ar as objcc dep_cc ld ln_s host_ld windres
4123
4124 probe_cc as "$as"
4125 asflags_filter=$_flags_filter
4126 add_asflags $_flags $_cflags
4127 set_ccvars AS
4128
4129 probe_cc objcc "$objcc"
4130 objcflags_filter=$_flags_filter
4131 add_objcflags $_flags $_cflags
4132 set_ccvars OBJC
4133
4134 probe_cc ld "$ld"
4135 ldflags_filter=$_flags_filter
4136 add_ldflags $_flags $_ldflags
4137 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4138 LD_O=${_ld_o-$LD_O}
4139 LD_LIB=${_ld_lib-$LD_LIB}
4140 LD_PATH=${_ld_path-$LD_PATH}
4141
4142 probe_cc hostld "$host_ld"
4143 host_ldflags_filter=$_flags_filter
4144 add_host_ldflags $_flags $_ldflags
4145 HOSTLD_O=${_ld_o-$HOSTLD_O}
4146
4147 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4148     probe_cc depcc "$dep_cc"
4149     CCDEP=${_DEPCMD:-$DEPCMD}
4150     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4151     DEPCCFLAGS=$_flags
4152 fi
4153
4154 if $ar 2>&1 | grep -q Microsoft; then
4155     arflags="-nologo"
4156     ar_o='-out:$@'
4157 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4158     arflags="rq"
4159     ar_o='$@'
4160 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4161     arflags='-Xany -r -c'
4162     ar_o='$@'
4163 elif $ar 2>&1 | grep -q "\[D\] "; then
4164     arflags="rcD"
4165     ar_o='$@'
4166 else
4167     arflags="rc"
4168     ar_o='$@'
4169 fi
4170
4171 add_cflags $extra_cflags
4172 add_cxxflags $extra_cxxflags
4173 add_objcflags $extra_objcflags
4174 add_asflags $extra_cflags
4175
4176 if test -n "$sysroot"; then
4177     case "$cc_type" in
4178         gcc|llvm_gcc|clang)
4179             add_cppflags --sysroot="$sysroot"
4180             add_ldflags --sysroot="$sysroot"
4181 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4182             add_cppflags -isysroot "$sysroot"
4183             add_ldflags -isysroot "$sysroot"
4184         ;;
4185         tms470)
4186             add_cppflags -I"$sysinclude"
4187             add_ldflags  --sysroot="$sysroot"
4188         ;;
4189     esac
4190 fi
4191
4192 if test "$cpu" = host; then
4193     enabled cross_compile &&
4194         die "--cpu=host makes no sense when cross-compiling."
4195
4196     case "$cc_type" in
4197         gcc|llvm_gcc)
4198             check_native(){
4199                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4200                 sed -n "/cc1.*$1=/{
4201                             s/.*$1=\\([^ ]*\\).*/\\1/
4202                             p
4203                             q
4204                         }" $TMPE
4205             }
4206             cpu=$(check_native -march || check_native -mcpu)
4207         ;;
4208         clang)
4209             check_native(){
4210                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4211                 sed -n "/cc1.*-target-cpu /{
4212                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4213                             p
4214                             q
4215                         }" $TMPE
4216             }
4217             cpu=$(check_native -march)
4218         ;;
4219     esac
4220
4221     test "${cpu:-host}" = host &&
4222         die "--cpu=host not supported with compiler $cc"
4223 fi
4224
4225 # Deal with common $arch aliases
4226 case "$arch" in
4227     aarch64|arm64)
4228         arch="aarch64"
4229     ;;
4230     arm*|iPad*|iPhone*)
4231         arch="arm"
4232     ;;
4233     mips*|IP*)
4234         case "$arch" in
4235         *el)
4236             add_cppflags -EL
4237             add_ldflags -EL
4238         ;;
4239         *eb)
4240             add_cppflags -EB
4241             add_ldflags -EB
4242         ;;
4243         esac
4244         arch="mips"
4245     ;;
4246     parisc*|hppa*)
4247         arch="parisc"
4248     ;;
4249     "Power Macintosh"|ppc*|powerpc*)
4250         arch="ppc"
4251     ;;
4252     s390|s390x)
4253         arch="s390"
4254     ;;
4255     sh4|sh)
4256         arch="sh4"
4257     ;;
4258     sun4*|sparc*)
4259         arch="sparc"
4260     ;;
4261     tilegx|tile-gx)
4262         arch="tilegx"
4263     ;;
4264     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4265         arch="x86"
4266     ;;
4267 esac
4268
4269 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4270 enable $arch
4271
4272 # Add processor-specific flags
4273 if enabled aarch64; then
4274
4275     case $cpu in
4276         armv*)
4277             cpuflags="-march=$cpu"
4278         ;;
4279         *)
4280             cpuflags="-mcpu=$cpu"
4281         ;;
4282     esac
4283
4284 elif enabled alpha; then
4285
4286     cpuflags="-mcpu=$cpu"
4287
4288 elif enabled arm; then
4289
4290     check_arm_arch() {
4291         check_cpp_condition stddef.h \
4292             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4293             $cpuflags
4294     }
4295
4296     probe_arm_arch() {
4297         if   check_arm_arch 4;        then echo armv4
4298         elif check_arm_arch 4T;       then echo armv4t
4299         elif check_arm_arch 5;        then echo armv5
4300         elif check_arm_arch 5E;       then echo armv5e
4301         elif check_arm_arch 5T;       then echo armv5t
4302         elif check_arm_arch 5TE;      then echo armv5te
4303         elif check_arm_arch 5TEJ;     then echo armv5te
4304         elif check_arm_arch 6;        then echo armv6
4305         elif check_arm_arch 6J;       then echo armv6j
4306         elif check_arm_arch 6K;       then echo armv6k
4307         elif check_arm_arch 6Z;       then echo armv6z
4308         elif check_arm_arch 6ZK;      then echo armv6zk
4309         elif check_arm_arch 6T2;      then echo armv6t2
4310         elif check_arm_arch 7;        then echo armv7
4311         elif check_arm_arch 7A  7_A;  then echo armv7-a
4312         elif check_arm_arch 7S;       then echo armv7-a
4313         elif check_arm_arch 7R  7_R;  then echo armv7-r
4314         elif check_arm_arch 7M  7_M;  then echo armv7-m
4315         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4316         elif check_arm_arch 8A  8_A;  then echo armv8-a
4317         fi
4318     }
4319
4320     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4321
4322     case $cpu in
4323         armv*)
4324             cpuflags="-march=$cpu"
4325             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4326         ;;
4327         *)
4328             cpuflags="-mcpu=$cpu"
4329             case $cpu in
4330                 cortex-a*)                               subarch=armv7a  ;;
4331                 cortex-r*)                               subarch=armv7r  ;;
4332                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4333                 arm11*)                                  subarch=armv6   ;;
4334                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4335                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4336                 *)                             subarch=$(probe_arm_arch) ;;
4337             esac
4338         ;;
4339     esac
4340
4341     case "$subarch" in
4342         armv5t*)    enable fast_clz                ;;
4343         armv[6-8]*)
4344             enable fast_clz
4345             disabled fast_unaligned || enable fast_unaligned
4346             ;;
4347     esac
4348
4349 elif enabled avr32; then
4350
4351     case $cpu in
4352         ap7[02]0[0-2])
4353             subarch="avr32_ap"
4354             cpuflags="-mpart=$cpu"
4355         ;;
4356         ap)
4357             subarch="avr32_ap"
4358             cpuflags="-march=$cpu"
4359         ;;
4360         uc3[ab]*)
4361             subarch="avr32_uc"
4362             cpuflags="-mcpu=$cpu"
4363         ;;
4364         uc)
4365             subarch="avr32_uc"
4366             cpuflags="-march=$cpu"
4367         ;;
4368     esac
4369
4370 elif enabled bfin; then
4371
4372     cpuflags="-mcpu=$cpu"
4373
4374 elif enabled mips; then
4375
4376     cpuflags="-march=$cpu"
4377
4378     if [ "$cpu" != "generic" ]; then
4379         disable mips32r2
4380         disable mips32r5
4381         disable mips64r2
4382         disable mips32r6
4383         disable mips64r6
4384         disable loongson2
4385         disable loongson3
4386
4387         case $cpu in
4388             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4389                 enable mips32r2
4390                 disable msa
4391             ;;
4392             p5600|i6400|p6600)
4393                 disable mipsdsp
4394                 disable mipsdspr2
4395             ;;
4396             loongson*)
4397                 enable loongson2
4398                 enable loongson3
4399                 enable local_aligned_8 local_aligned_16 local_aligned_32
4400                 enable simd_align_16
4401                 enable fast_64bit
4402                 enable fast_clz
4403                 enable fast_cmov
4404                 enable fast_unaligned
4405                 disable aligned_stack
4406                 disable mipsfpu
4407                 disable mipsdsp
4408                 disable mipsdspr2
4409                 case $cpu in
4410                     loongson3*)
4411                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4412                     ;;
4413                     loongson2e)
4414                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4415                     ;;
4416                     loongson2f)
4417                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4418                     ;;
4419                 esac
4420             ;;
4421             *)
4422                 # Unknown CPU. Disable everything.
4423                 warn "unknown CPU. Disabling all MIPS optimizations."
4424                 disable mipsfpu
4425                 disable mipsdsp
4426                 disable mipsdspr2
4427                 disable msa
4428                 disable mmi
4429             ;;
4430         esac
4431
4432         case $cpu in
4433             24kc)
4434                 disable mipsfpu
4435                 disable mipsdsp
4436                 disable mipsdspr2
4437             ;;
4438             24kf*)
4439                 disable mipsdsp
4440                 disable mipsdspr2
4441             ;;
4442             24kec|34kc|1004kc)
4443                 disable mipsfpu
4444                 disable mipsdspr2
4445             ;;
4446             24kef*|34kf*|1004kf*)
4447                 disable mipsdspr2
4448             ;;
4449             74kc)
4450                 disable mipsfpu
4451             ;;
4452             p5600)
4453                 enable mips32r5
4454                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4455             ;;
4456             i6400)
4457                 enable mips64r6
4458                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4459             ;;
4460             p6600)
4461                 enable mips64r6
4462                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4463             ;;
4464         esac
4465     else
4466         # We do not disable anything. Is up to the user to disable the unwanted features.
4467         warn 'generic cpu selected'
4468     fi
4469
4470 elif enabled ppc; then
4471
4472     disable ldbrx
4473
4474     case $(tolower $cpu) in
4475         601|ppc601|powerpc601)
4476             cpuflags="-mcpu=601"
4477             disable altivec
4478         ;;
4479         603*|ppc603*|powerpc603*)
4480             cpuflags="-mcpu=603"
4481             disable altivec
4482         ;;
4483         604*|ppc604*|powerpc604*)
4484             cpuflags="-mcpu=604"
4485             disable altivec
4486         ;;
4487         g3|75*|ppc75*|powerpc75*)
4488             cpuflags="-mcpu=750"
4489             disable altivec
4490         ;;
4491         g4|745*|ppc745*|powerpc745*)
4492             cpuflags="-mcpu=7450"
4493             disable vsx
4494         ;;
4495         74*|ppc74*|powerpc74*)
4496             cpuflags="-mcpu=7400"
4497             disable vsx
4498         ;;
4499         g5|970|ppc970|powerpc970)
4500             cpuflags="-mcpu=970"
4501             disable vsx
4502         ;;
4503         power[3-6]*)
4504             cpuflags="-mcpu=$cpu"
4505             disable vsx
4506         ;;
4507         power[7-8]*)
4508             cpuflags="-mcpu=$cpu"
4509         ;;
4510         cell)
4511             cpuflags="-mcpu=cell"
4512             enable ldbrx
4513             disable vsx
4514         ;;
4515         e500mc)
4516             cpuflags="-mcpu=e500mc"
4517             disable altivec
4518         ;;
4519         e500v2)
4520             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4521             disable altivec
4522             disable dcbzl
4523         ;;
4524         e500)
4525             cpuflags="-mcpu=8540 -mhard-float"
4526             disable altivec
4527             disable dcbzl
4528         ;;
4529     esac
4530
4531 elif enabled sparc; then
4532
4533     case $cpu in
4534         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4535             cpuflags="-mcpu=$cpu"
4536         ;;
4537         ultrasparc*|niagara[234])
4538             cpuflags="-mcpu=$cpu"
4539         ;;
4540     esac
4541
4542 elif enabled x86; then
4543
4544     case $cpu in
4545         i[345]86|pentium)
4546             cpuflags="-march=$cpu"
4547             disable i686
4548             disable mmx
4549         ;;
4550         # targets that do NOT support nopl and conditional mov (cmov)
4551         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4552             cpuflags="-march=$cpu"
4553             disable i686
4554         ;;
4555         # targets that do support nopl and conditional mov (cmov)
4556         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4557         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4558         |amdfam10|barcelona|b[dt]ver*|znver*)
4559             cpuflags="-march=$cpu"
4560             enable i686
4561             enable fast_cmov
4562         ;;
4563         # targets that do support conditional mov but on which it's slow
4564         pentium4|pentium4m|prescott|nocona)
4565             cpuflags="-march=$cpu"
4566             enable i686
4567             disable fast_cmov
4568         ;;
4569     esac
4570
4571 fi
4572
4573 if [ "$cpu" != generic ]; then
4574     add_cflags  $cpuflags
4575     add_asflags $cpuflags
4576     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4577 fi
4578
4579 # compiler sanity check
4580 check_exec <<EOF
4581 int main(void){ return 0; }
4582 EOF
4583 if test "$?" != 0; then
4584     echo "$cc is unable to create an executable file."
4585     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4586         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4587         echo "Only do this if you know what cross compiling means."
4588     fi
4589     die "C compiler test failed."
4590 fi
4591
4592 add_cppflags -D_ISOC99_SOURCE
4593 add_cxxflags -D__STDC_CONSTANT_MACROS
4594 add_cxxflags -std=c++98
4595
4596 # some compilers silently accept -std=c11, so we also need to check that the
4597 # version macro is defined properly
4598 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
4599     add_cflags -std=c11
4600 else
4601     check_cflags -std=c99
4602 fi
4603
4604 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4605 #include <stdlib.h>
4606 EOF
4607 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4608 #include <stdlib.h>
4609 EOF
4610
4611 add_host_cppflags -D_ISOC99_SOURCE
4612 check_host_cflags -std=c99
4613 check_host_cflags -Wall
4614 check_host_cflags -O3
4615
4616 check_64bit(){
4617     arch32=$1
4618     arch64=$2
4619     expr=$3
4620     check_code cc "" "int test[2*($expr) - 1]" &&
4621         subarch=$arch64 || subarch=$arch32
4622 }
4623
4624 case "$arch" in
4625     aarch64|alpha|ia64)
4626         spic=$shared
4627     ;;
4628     mips)
4629         check_64bit mips mips64 '_MIPS_SIM > 1'
4630         spic=$shared
4631     ;;
4632     parisc)
4633         check_64bit parisc parisc64 'sizeof(void *) > 4'
4634         spic=$shared
4635     ;;
4636     ppc)
4637         check_64bit ppc ppc64 'sizeof(void *) > 4'
4638         spic=$shared
4639     ;;
4640     s390)
4641         check_64bit s390 s390x 'sizeof(void *) > 4'
4642         spic=$shared
4643     ;;
4644     sparc)
4645         check_64bit sparc sparc64 'sizeof(void *) > 4'
4646         spic=$shared
4647     ;;
4648     x86)
4649         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4650         # Treat x32 as x64 for now. Note it also needs spic=$shared
4651         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4652             subarch=x86_64
4653         if test "$subarch" = "x86_64"; then
4654             spic=$shared
4655         fi
4656     ;;
4657     ppc)
4658         check_cc <<EOF && subarch="ppc64"
4659         int test[(int)sizeof(char*) - 7];
4660 EOF
4661     ;;
4662 esac
4663
4664 enable $subarch
4665 enabled spic && enable_weak pic
4666
4667 # OS specific
4668 case $target_os in
4669     aix)
4670         SHFLAGS=-shared
4671         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4672         enabled shared && add_ldflags -Wl,-brtl
4673         ;;
4674     android)
4675         disable symver
4676         enable section_data_rel_ro
4677         SLIB_INSTALL_NAME='$(SLIBNAME)'
4678         SLIB_INSTALL_LINKS=
4679         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4680         ;;
4681     haiku)
4682         prefix_default="/boot/common"
4683         network_extralibs="-lnetwork"
4684         host_libs=
4685         ;;
4686     sunos)
4687         SHFLAGS='-shared -Wl,-h,$$(@F)'
4688         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4689         network_extralibs="-lsocket -lnsl"
4690         add_cppflags -D__EXTENSIONS__
4691         # When using suncc to build, the Solaris linker will mark
4692         # an executable with each instruction set encountered by
4693         # the Solaris assembler.  As our libraries contain their own
4694         # guards for processor-specific code, instead suppress
4695         # generation of the HWCAPS ELF section on Solaris x86 only.
4696         enabled_all suncc x86 &&
4697             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4698             add_ldflags -Wl,-M,mapfile
4699         nm_default='nm -P -g'
4700         version_script='-M'
4701         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4702         ;;
4703     netbsd)
4704         disable symver
4705         oss_indev_extralibs="-lossaudio"
4706         oss_outdev_extralibs="-lossaudio"
4707         enabled gcc || check_ldflags -Wl,-zmuldefs
4708         ;;
4709     openbsd|bitrig)
4710         disable symver
4711         SHFLAGS='-shared'
4712         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4713         SLIB_INSTALL_LINKS=
4714         oss_indev_extralibs="-lossaudio"
4715         oss_outdev_extralibs="-lossaudio"
4716         ;;
4717     dragonfly)
4718         disable symver
4719         ;;
4720     freebsd)
4721         ;;
4722     bsd/os)
4723         add_extralibs -lpoll -lgnugetopt
4724         strip="strip -d"
4725         ;;
4726     darwin)
4727         enabled ppc && add_asflags -force_cpusubtype_ALL
4728         install_name_dir_default='$(SHLIBDIR)'
4729         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4730         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4731         strip="${strip} -x"
4732         add_ldflags -Wl,-dynamic,-search_paths_first
4733         SLIBSUF=".dylib"
4734         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4735         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4736         objformat="macho"
4737         enabled x86_64 && objformat="macho64"
4738         enabled_any pic shared x86_64 ||
4739             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4740         check_header dispatch/dispatch.h &&
4741             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4742         version_script='-exported_symbols_list'
4743         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4744         ;;
4745     msys*)
4746         die "Native MSYS builds are discouraged, please use the MINGW environment."
4747         ;;
4748     mingw32*|mingw64*)
4749         if test $target_os = "mingw32ce"; then
4750             disable network
4751         else
4752             target_os=mingw32
4753         fi
4754         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4755         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4756         LIBTARGET=i386
4757         if enabled x86_64; then
4758             LIBTARGET="i386:x86-64"
4759         elif enabled arm; then
4760             LIBTARGET=arm-wince
4761         fi
4762         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4763         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4764         shlibdir_default="$bindir_default"
4765         SLIBPREF=""
4766         SLIBSUF=".dll"
4767         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4768         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4769         dlltool="${cross_prefix}dlltool"
4770         if check_cmd lib.exe -list; then
4771             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4772             if enabled x86_64; then
4773                 LIBTARGET=x64
4774             fi
4775         elif check_cmd $dlltool --version; then
4776             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4777         fi
4778         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4779         SLIB_INSTALL_LINKS=
4780         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4781         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4782         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4783         objformat="win32"
4784         ranlib=:
4785         enable dos_paths
4786         check_ldflags -Wl,--nxcompat,--dynamicbase
4787         # Lets work around some stupidity in binutils.
4788         # ld will strip relocations from executables even though we need them
4789         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4790         # however ld then forgets what the entry point should be (oops) so we
4791         # have to manually (re)set it.
4792         if enabled x86_32; then
4793             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4794         elif enabled x86_64; then
4795             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4796             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4797             # Set image base >4GB for extra entropy with HEASLR
4798             add_ldexeflags -Wl,--image-base,0x140000000
4799             append SHFLAGS -Wl,--image-base,0x180000000
4800         fi
4801         ;;
4802     win32|win64)
4803         disable symver
4804         if enabled shared; then
4805             # Link to the import library instead of the normal static library
4806             # for shared libs.
4807             LD_LIB='%.lib'
4808             # Cannot build both shared and static libs with MSVC or icl.
4809             disable static
4810         fi
4811         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4812         shlibdir_default="$bindir_default"
4813         SLIBPREF=""
4814         SLIBSUF=".dll"
4815         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4816         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4817         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4818         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4819         SLIB_INSTALL_LINKS=
4820         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4821         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4822         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4823         objformat="win32"
4824         ranlib=:
4825         enable dos_paths
4826         ;;
4827     cygwin*)
4828         target_os=cygwin
4829         shlibdir_default="$bindir_default"
4830         SLIBPREF="cyg"
4831         SLIBSUF=".dll"
4832         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4833         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4834         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4835         SLIB_INSTALL_LINKS=
4836         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4837         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4838         objformat="win32"
4839         enable dos_paths
4840         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4841         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4842         ;;
4843     *-dos|freedos|opendos)
4844         network_extralibs="-lsocket"
4845         objformat="coff"
4846         enable dos_paths
4847         add_cppflags -U__STRICT_ANSI__
4848         ;;
4849     linux)
4850         enable dv1394
4851         enable section_data_rel_ro
4852         ;;
4853     irix*)
4854         target_os=irix
4855         ranlib="echo ignoring ranlib"
4856         ;;
4857     os/2*)
4858         strip="lxlite -CS"
4859         objformat="aout"
4860         add_cppflags -D_GNU_SOURCE
4861         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4862         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4863         LIBSUF="_s.a"
4864         SLIBPREF=""
4865         SLIBSUF=".dll"
4866         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4867         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4868         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
4869             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
4870             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
4871             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
4872             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
4873         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
4874             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
4875         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4876         SLIB_INSTALL_LINKS=
4877         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
4878         enable dos_paths
4879         enable_weak os2threads
4880         ;;
4881     gnu/kfreebsd)
4882         add_cppflags -D_BSD_SOURCE
4883         ;;
4884     gnu)
4885         ;;
4886     qnx)
4887         add_cppflags -D_QNX_SOURCE
4888         network_extralibs="-lsocket"
4889         ;;
4890     symbian)
4891         SLIBSUF=".dll"
4892         enable dos_paths
4893         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4894         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4895         add_ldflags -Wl,--target1-abs,--no-undefined \
4896                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4897                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4898         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4899                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4900                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4901         ;;
4902     osf1)
4903         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4904         ;;
4905     minix)
4906         ;;
4907     plan9)
4908         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4909                      -D_REENTRANT_SOURCE        \
4910                      -D_RESEARCH_SOURCE         \
4911                      -DFD_SETSIZE=96            \
4912                      -DHAVE_SOCK_OPTS
4913         add_compat strtod.o strtod=avpriv_strtod
4914         network_extralibs='-lbsd'
4915         exeobjs=compat/plan9/main.o
4916         disable ffserver
4917         cp_f='cp'
4918         ;;
4919     none)
4920         ;;
4921     *)
4922         die "Unknown OS '$target_os'."
4923         ;;
4924 esac
4925
4926 # test if creating links works
4927 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4928 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4929 mkdir "$link_dest"
4930 $ln_s "$link_dest" "$link_name"
4931 touch "$link_dest/test_file"
4932 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4933     # create link to source path
4934     [ -e src ] && rm src
4935     $ln_s "$source_path" src
4936     source_link=src
4937 else
4938     # creating directory links doesn't work
4939     # fall back to using the full source path
4940     source_link="$source_path"
4941 fi
4942 # cleanup
4943 rm -r "$link_dest"
4944 rm -r "$link_name"
4945
4946 # determine libc flavour
4947
4948 probe_libc(){
4949     pfx=$1
4950     pfx_no_=${pfx%_}
4951     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4952     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4953         eval ${pfx}libc_type=uclibc
4954         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4955     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4956         eval ${pfx}libc_type=glibc
4957         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4958     # MinGW headers can be installed on Cygwin, so check for newlib first.
4959     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4960         eval ${pfx}libc_type=newlib
4961         add_${pfx}cppflags -U__STRICT_ANSI__
4962     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4963     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4964         eval ${pfx}libc_type=mingw64
4965         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4966             add_compat msvcrt/snprintf.o
4967             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4968         fi
4969         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4970         eval test \$${pfx_no_}cc_type = "gcc" &&
4971             add_${pfx}cppflags -D__printf__=__gnu_printf__
4972     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4973          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4974         eval ${pfx}libc_type=mingw32
4975         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4976             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4977             die "ERROR: MinGW32 runtime version must be >= 3.15."
4978         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4979         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||
4980             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4981         eval test \$${pfx_no_}cc_type = "gcc" &&
4982             add_${pfx}cppflags -D__printf__=__gnu_printf__
4983     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4984         eval ${pfx}libc_type=msvcrt
4985         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4986             if [ "$pfx" = host_ ]; then
4987                 add_host_cppflags -Dsnprintf=_snprintf
4988             else
4989                 add_compat strtod.o strtod=avpriv_strtod
4990                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4991                                              _snprintf=avpriv_snprintf  \
4992                                              vsnprintf=avpriv_vsnprintf
4993             fi
4994         fi
4995         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4996         # 0x601 by default unless something else is set by the user.
4997         # This can easily lead to us detecting functions only present
4998         # in such new versions and producing binaries requiring windows 7.0.
4999         # Therefore explicitly set the default to XP unless the user has
5000         # set something else on the command line.
5001         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5002         # family. For these cases, configure is free to use any functions
5003         # found in the SDK headers by default. (Alternatively, we could force
5004         # _WIN32_WINNT to 0x0602 in that case.)
5005         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5006             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
5007 #ifdef WINAPI_FAMILY
5008 #include <winapifamily.h>
5009 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5010 #error not desktop
5011 #endif
5012 #endif
5013 EOF
5014     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5015         eval ${pfx}libc_type=klibc
5016     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5017         eval ${pfx}libc_type=bionic
5018     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5019         eval ${pfx}libc_type=solaris
5020         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5021     fi
5022     check_${pfx}cc <<EOF
5023 #include <time.h>
5024 void *v = localtime_r;
5025 EOF
5026 test "$?" != 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
5027 #include <time.h>
5028 void *v = localtime_r;
5029 EOF
5030
5031 }
5032
5033 probe_libc
5034 test -n "$libc_type" && enable libc_$libc_type
5035 probe_libc host_
5036 test -n "$host_libc_type" && enable host_libc_$host_libc_type
5037
5038 case $libc_type in
5039     bionic)
5040         add_compat strtod.o strtod=avpriv_strtod
5041         ;;
5042 esac
5043
5044 # hacks for compiler/libc/os combinations
5045
5046 if enabled_all tms470 libc_glibc; then
5047     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
5048     add_cppflags -D__USER_LABEL_PREFIX__=
5049     add_cppflags -D__builtin_memset=memset
5050     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
5051     add_cflags   -pds=48    # incompatible redefinition of macro
5052 fi
5053
5054 if enabled_all ccc libc_glibc; then
5055     add_ldflags -Wl,-z,now  # calls to libots crash without this
5056 fi
5057
5058 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5059     add_cppflags '-I\$(SRC_PATH)/compat/float'
5060
5061 esc(){
5062     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
5063 }
5064
5065 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
5066
5067 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5068
5069 set_default libdir
5070 : ${shlibdir_default:="$libdir"}
5071 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5072
5073 set_default $PATHS_LIST
5074 set_default nm
5075
5076 # we need to build at least one lib type
5077 if ! enabled_any static shared; then
5078     cat <<EOF
5079 At least one library type must be built.
5080 Specify --enable-static to build the static libraries or --enable-shared to
5081 build the shared libraries as well. To only build the shared libraries specify
5082 --disable-static in addition to --enable-shared.
5083 EOF
5084     exit 1
5085 fi
5086
5087 die_license_disabled() {
5088     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
5089 }
5090
5091 die_license_disabled_gpl() {
5092     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
5093 }
5094
5095 die_license_disabled gpl frei0r
5096 die_license_disabled gpl libcdio
5097 die_license_disabled gpl librubberband
5098 die_license_disabled gpl libsmbclient
5099 die_license_disabled gpl libvidstab
5100 die_license_disabled gpl libx264
5101 die_license_disabled gpl libx265
5102 die_license_disabled gpl libxavs
5103 die_license_disabled gpl libxvid
5104 die_license_disabled gpl x11grab
5105
5106 die_license_disabled nonfree libnpp
5107 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
5108 enabled gpl && die_license_disabled_gpl nonfree openssl
5109
5110 die_license_disabled version3 gmp
5111 die_license_disabled version3 libopencore_amrnb
5112 die_license_disabled version3 libopencore_amrwb
5113 die_license_disabled version3 libsmbclient
5114 die_license_disabled version3 libvo_amrwbenc
5115
5116 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
5117
5118 disabled optimizations || check_cflags -fomit-frame-pointer
5119
5120 enable_weak_pic() {
5121     disabled pic && return
5122     enable pic
5123     add_cppflags -DPIC
5124     case "$target_os" in
5125     mingw*|cygwin*)
5126         ;;
5127     *)
5128         add_cflags -fPIC
5129         ;;
5130     esac
5131     add_asflags  -fPIC
5132 }
5133
5134 enabled pic && enable_weak_pic
5135
5136 check_cc <<EOF || die "Symbol mangling check failed."
5137 int ff_extern;
5138 EOF
5139 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5140 extern_prefix=${sym%%ff_extern*}
5141
5142 check_cc <<EOF && enable_weak inline_asm
5143 void foo(void) { __asm__ volatile ("" ::); }
5144 EOF
5145
5146 _restrict=
5147 for restrict_keyword in restrict __restrict__ __restrict; do
5148     check_cc <<EOF && _restrict=$restrict_keyword && break
5149 void foo(char * $restrict_keyword p);
5150 EOF
5151 done
5152
5153 check_cc <<EOF && enable pragma_deprecated
5154 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5155 EOF
5156
5157 check_cc <<EOF && enable attribute_packed
5158 struct { int x; } __attribute__((packed)) x;
5159 EOF
5160
5161 check_cc <<EOF && enable attribute_may_alias
5162 union { int x; } __attribute__((may_alias)) x;
5163 EOF
5164
5165 check_cc <<EOF || die "endian test failed"
5166 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5167 EOF
5168 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5169
5170 if ! enabled ppc64 || enabled bigendian; then
5171     disable vsx
5172 fi
5173
5174 check_gas() {
5175     log "check_gas using '$as' as AS"
5176     # :vararg is used on aarch64, arm and ppc altivec
5177     check_as <<EOF || return 1
5178 .macro m n, y:vararg=0
5179 \n: .int \y
5180 .endm
5181 m x
5182 EOF
5183     # .altmacro is only used in arm asm
5184     ! enabled arm || check_as <<EOF || return 1
5185 .altmacro
5186 EOF
5187     enable gnu_as
5188     return 0
5189 }
5190
5191 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5192     nogas=:
5193     enabled_any arm aarch64 && nogas=die
5194     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5195     as_noop=-v
5196
5197     case $as_type in
5198         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5199         gcc)  gaspp_as_type=gas ;;
5200         *)    gaspp_as_type=$as_type ;;
5201     esac
5202
5203     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5204
5205     test "${as#*gas-preprocessor.pl}" != "$as" ||
5206     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5207         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5208
5209     if ! check_gas ; then
5210         as=${gas:=$as}
5211         check_gas || \
5212             $nogas "GNU assembler not found, install/update gas-preprocessor"
5213     fi
5214
5215     check_as <<EOF && enable as_func
5216 .func test
5217 .endfunc
5218 EOF
5219 fi
5220
5221 check_inline_asm inline_asm_labels '"1:\n"'
5222
5223 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5224
5225 if enabled aarch64; then
5226     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5227     # internal assembler in clang 3.3 does not support this instruction
5228     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5229     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5230
5231     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5232
5233 elif enabled alpha; then
5234
5235     check_cflags -mieee
5236
5237 elif enabled arm; then
5238
5239     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5240
5241     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5242 float func(float a, float b){ return a+b; }
5243 EOF
5244
5245     enabled thumb && check_cflags -mthumb || check_cflags -marm
5246
5247     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5248         enable vfp_args
5249     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5250         enable vfp_args
5251     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5252         case "${cross_prefix:-$cc}" in
5253             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5254             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5255 __asm__ (".eabi_attribute 28, 1");
5256 int main(void) { return 0; }
5257 EOF
5258         esac
5259         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5260     fi
5261
5262     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5263     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5264     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5265     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5266     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5267     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5268     enabled setend  && check_insn setend  'setend be'
5269
5270     [ $target_os = linux ] || [ $target_os = android ] ||
5271         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5272             $ARCH_EXT_LIST_ARM
5273
5274     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5275
5276     check_as <<EOF && enable as_dn_directive
5277 ra .dn d0.i16
5278 .unreq ra
5279 EOF
5280
5281     # llvm's integrated assembler supports .object_arch from llvm 3.5
5282     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5283 .object_arch armv4
5284 EOF
5285
5286     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5287
5288 elif enabled mips; then
5289
5290     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5291     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5292     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5293
5294     # Enable minimum ISA based on selected options
5295     if enabled mips64; then
5296         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5297         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5298         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5299     else
5300         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5301         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5302         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5303         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5304     fi
5305
5306     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5307     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5308     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5309     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5310     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5311
5312 elif enabled parisc; then
5313
5314     if enabled gcc; then
5315         case $($cc -dumpversion) in
5316             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5317         esac
5318     fi
5319
5320 elif enabled ppc; then
5321
5322     enable local_aligned_8 local_aligned_16 local_aligned_32
5323
5324     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5325     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5326     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5327     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5328
5329     # AltiVec flags: The FSF version of GCC differs from the Apple version
5330     if enabled altivec; then
5331         check_cflags -maltivec -mabi=altivec &&
5332         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5333         check_cflags -faltivec
5334
5335         # check if our compiler supports Motorola AltiVec C API
5336         check_cc <<EOF || disable altivec
5337 $inc_altivec_h
5338 int main(void) {
5339     vector signed int v1 = (vector signed int) { 0 };
5340     vector signed int v2 = (vector signed int) { 1 };
5341     v1 = vec_add(v1, v2);
5342     return 0;
5343 }
5344 EOF
5345
5346         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5347     fi
5348
5349     if enabled vsx; then
5350         check_cflags -mvsx &&
5351         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5352     fi
5353
5354     if enabled power8; then
5355         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5356     fi
5357
5358 elif enabled x86; then
5359
5360     check_builtin rdtsc    intrin.h   "__rdtsc()"
5361     check_builtin mm_empty mmintrin.h "_mm_empty()"
5362
5363     enable local_aligned_8 local_aligned_16 local_aligned_32
5364
5365     # check whether EBP is available on x86
5366     # As 'i' is stored on the stack, this program will crash
5367     # if the base pointer is used to access it because the
5368     # base pointer is cleared in the inline assembly code.
5369     check_exec_crash <<EOF && enable ebp_available
5370 volatile int i=0;
5371 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5372 return i;
5373 EOF
5374
5375     # check whether EBX is available on x86
5376     check_inline_asm ebx_available '""::"b"(0)' &&
5377         check_inline_asm ebx_available '"":::"%ebx"'
5378
5379     # check whether xmm clobbers are supported
5380     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5381
5382     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5383         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5384
5385     # check whether binutils is new enough to compile SSSE3/MMXEXT
5386     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5387     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5388
5389     if ! disabled_any asm mmx yasm; then
5390         if check_cmd $yasmexe --version; then
5391             enabled x86_64 && yasm_extra="-m amd64"
5392             yasm_debug="-g dwarf2"
5393         elif check_cmd nasm -v; then
5394             yasmexe=nasm
5395             yasm_debug="-g -F dwarf"
5396             if enabled x86_64; then
5397                 case "$objformat" in
5398                     elf)   objformat=elf64 ;;
5399                     win32) objformat=win64 ;;
5400                 esac
5401             fi
5402         fi
5403
5404         YASMFLAGS="-f $objformat $yasm_extra"
5405         enabled pic               && append YASMFLAGS "-DPIC"
5406         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5407         case "$objformat" in
5408             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5409         esac
5410
5411         check_yasm "movbe ecx, [5]" && enable yasm ||
5412             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5413         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5414         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5415         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5416         check_yasm "CPU amdnop" || disable cpunop
5417     fi
5418
5419     case "$cpu" in
5420         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5421             disable fast_clz
5422         ;;
5423     esac
5424
5425 fi
5426
5427 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5428
5429 check_ldflags -Wl,--as-needed
5430 check_ldflags -Wl,-z,noexecstack
5431
5432 if check_func dlopen && check_func dlsym; then
5433     ldl=
5434 elif check_func dlopen -ldl && check_func dlsym -ldl; then
5435     ldl=-ldl
5436 fi
5437
5438 avisynth_demuxer_extralibs='$ldl'
5439 cuda_extralibs='$ldl'
5440 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5441 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5442 frei0r_filter_extralibs='$ldl'
5443 frei0r_src_filter_extralibs='$ldl'
5444 ladspa_filter_extralibs='$ldl'
5445 nvenc_extralibs='$ldl'
5446 coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5447 coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5448
5449 if ! disabled network; then
5450     check_func getaddrinfo $network_extralibs
5451     check_func inet_aton $network_extralibs
5452
5453     check_type netdb.h "struct addrinfo"
5454     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5455     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5456     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5457     check_type poll.h "struct pollfd"
5458     check_type netinet/sctp.h "struct sctp_event_subscribe"
5459     check_struct "sys/socket.h" "struct msghdr" msg_flags
5460     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5461     check_type netinet/in.h "struct sockaddr_in6"
5462     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5463     check_type "sys/types.h sys/socket.h" socklen_t
5464
5465     # Prefer arpa/inet.h over winsock2
5466     if check_header arpa/inet.h ; then
5467         check_func closesocket
5468     elif check_header winsock2.h ; then
5469         check_func_headers winsock2.h closesocket -lws2 &&
5470             network_extralibs="-lws2" ||
5471         { check_func_headers winsock2.h closesocket -lws2_32 &&
5472             network_extralibs="-lws2_32"; } || disable winsock2_h network
5473         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5474
5475         check_type ws2tcpip.h socklen_t
5476         check_type ws2tcpip.h "struct addrinfo"
5477         check_type ws2tcpip.h "struct group_source_req"
5478         check_type ws2tcpip.h "struct ip_mreq_source"
5479         check_type ws2tcpip.h "struct ipv6_mreq"
5480         check_type winsock2.h "struct pollfd"
5481         check_struct winsock2.h "struct sockaddr" sa_len
5482         check_type ws2tcpip.h "struct sockaddr_in6"
5483         check_type ws2tcpip.h "struct sockaddr_storage"
5484     else
5485         disable network
5486     fi
5487 fi
5488
5489 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5490 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5491 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5492 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5493 check_builtin sarestart signal.h "SA_RESTART"
5494 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5495 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5496 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5497 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5498 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5499
5500 case "$custom_allocator" in
5501     jemalloc)
5502         # jemalloc by default does not use a prefix
5503         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5504     ;;
5505     tcmalloc)
5506         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5507         malloc_prefix=tc_
5508     ;;
5509 esac
5510
5511 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5512 check_func  ${malloc_prefix}memalign            && enable memalign
5513 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5514
5515 check_func  access
5516 check_func_headers stdlib.h arc4random
5517 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5518 check_func  fcntl
5519 check_func  fork
5520 check_func  gethrtime
5521 check_func  getopt
5522 check_func  getrusage
5523 check_func  gettimeofday
5524 check_func  isatty
5525 check_func  mach_absolute_time
5526 check_func  mkstemp
5527 check_func  mmap
5528 check_func  mprotect
5529 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5530 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5531 check_func  sched_getaffinity
5532 check_func  setrlimit
5533 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5534 check_func  strerror_r
5535 check_func  sysconf
5536 check_func  sysctl
5537 check_func  usleep
5538
5539 check_func_headers conio.h kbhit
5540 check_func_headers io.h setmode
5541 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5542 check_func_headers stdlib.h getenv
5543 check_func_headers sys/stat.h lstat
5544
5545 check_func_headers windows.h CoTaskMemFree -lole32
5546 check_func_headers windows.h GetProcessAffinityMask
5547 check_func_headers windows.h GetProcessTimes
5548 check_func_headers windows.h GetSystemTimeAsFileTime
5549 check_func_headers windows.h LoadLibrary
5550 check_func_headers windows.h MapViewOfFile
5551 check_func_headers windows.h PeekNamedPipe
5552 check_func_headers windows.h SetConsoleTextAttribute
5553 check_func_headers windows.h SetConsoleCtrlHandler
5554 check_func_headers windows.h Sleep
5555 check_func_headers windows.h VirtualAlloc
5556 check_struct windows.h "CONDITION_VARIABLE" Ptr
5557 check_func_headers glob.h glob
5558 enabled xlib &&
5559     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5560
5561 check_header AudioToolbox/AudioToolbox.h
5562 check_header direct.h
5563 check_header dirent.h
5564 check_header dlfcn.h
5565 check_header d3d11.h
5566 check_header dxva.h
5567 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5568 check_header io.h
5569 check_header libcrystalhd/libcrystalhd_if.h
5570 check_header mach/mach_time.h
5571 check_header malloc.h
5572 check_header net/udplite.h
5573 check_header poll.h
5574 check_header sys/mman.h
5575 check_header sys/param.h
5576 check_header sys/resource.h
5577 check_header sys/select.h
5578 check_header sys/time.h
5579 check_header sys/un.h
5580 check_header termios.h
5581 check_header unistd.h
5582 check_header valgrind/valgrind.h
5583 check_header vdpau/vdpau.h
5584 check_header vdpau/vdpau_x11.h
5585 check_header VideoDecodeAcceleration/VDADecoder.h
5586 check_header VideoToolbox/VideoToolbox.h
5587 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5588 enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo
5589 check_header windows.h
5590 check_header X11/extensions/XvMClib.h
5591 check_header asm/types.h
5592
5593 # it seems there are versions of clang in some distros that try to use the
5594 # gcc headers, which explodes for stdatomic
5595 # so we also check that atomics actually work here
5596 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
5597
5598 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5599 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5600 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5601 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5602
5603 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5604
5605 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5606 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5607 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5608 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5609 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5610
5611 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5612 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5613 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5614 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5615 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5616 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5617
5618 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5619
5620 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5621
5622 if ! disabled w32threads && ! enabled pthreads; then
5623     check_func_headers "windows.h process.h" _beginthreadex &&
5624         enable w32threads || disable w32threads
5625     if ! enabled w32threads && enabled winrt; then
5626         check_func_headers "windows.h" CreateThread &&
5627             enable w32threads || disable w32threads
5628     fi
5629 fi
5630
5631 # check for some common methods of building with pthread support
5632 # do this before the optional library checks as some of them require pthreads
5633 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5634     enable pthreads
5635     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5636         add_cflags -pthread
5637         add_extralibs -pthread
5638     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5639         add_cflags -pthreads
5640         add_extralibs -pthreads
5641     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5642         add_cflags -ldl -pthread
5643         add_extralibs -ldl -pthread
5644     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5645         add_extralibs -lpthreadGC2
5646     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5647         :
5648     elif ! check_func pthread_join && ! check_func pthread_create; then
5649         disable pthreads
5650     fi
5651     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5652 fi
5653
5654
5655 if enabled pthreads; then
5656   check_func pthread_cancel
5657 fi
5658
5659 enabled pthreads &&
5660     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
5661
5662 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5663 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5664 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5665
5666 check_lib math.h sin -lm && LIBM="-lm"
5667 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5668
5669 atan2f_args=2
5670 copysign_args=2
5671 hypot_args=2
5672 ldexpf_args=2
5673 powf_args=2
5674
5675 for func in $MATH_FUNCS; do
5676     eval check_mathfunc $func \${${func}_args:-1}
5677 done
5678
5679 for func in $COMPLEX_FUNCS; do
5680     eval check_complexfunc $func \${${func}_args:-1}
5681 done
5682
5683 # these are off by default, so fail if requested and not available
5684 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5685 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5686                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5687 enabled cuda              && check_header cuda.h # this is not a dependency
5688 enabled cuvid             && { enabled cuda ||
5689                                die "ERROR: CUVID requires CUDA"; }
5690 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5691 enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
5692 enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
5693 enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&
5694                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }
5695 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5696 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5697 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5698 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&
5699                                check_lib2 "dlfcn.h" dlopen -ldl; }
5700 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5701 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5702 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5703 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5704 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5705 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5706                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5707                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5708 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5709 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5710                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5711                                  warn "using libfdk without pkg-config"; } }
5712 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"
5713 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5714 enabled fontconfig        && enable libfontconfig
5715 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5716 enabled libfreetype       && require_libfreetype
5717 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5718 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5719 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5720                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5721                                done || die "ERROR: libgsm not found"; }
5722 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5723 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5724 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5725 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5726 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5727 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5728 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
5729 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5730 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5731 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5732                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
5733                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5734                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
5735 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5736 enabled libopenjpeg       && { { check_lib2 openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5737                                check_lib2 openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||
5738                                { check_lib2 openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5739                                { check_lib2 openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5740                                { check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5741                                die "ERROR: libopenjpeg not found"; }
5742 enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create
5743 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5744 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5745 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5746 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5747 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5748 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5749 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5750                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5751 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5752 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5753 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5754 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5755 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5756 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5757 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5758                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5759                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5760 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5761 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5762 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5763 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5764
5765 enabled libvpx            && {
5766     enabled libvpx_vp8_decoder && {
5767         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5768             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5769                 die "ERROR: libvpx decoder version must be >=0.9.1";
5770     }
5771     enabled libvpx_vp8_encoder && {
5772         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5773             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5774                 die "ERROR: libvpx encoder version must be >=0.9.7";
5775     }
5776     enabled libvpx_vp9_decoder && {
5777         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5778             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5779                 disable libvpx_vp9_decoder;
5780     }
5781     enabled libvpx_vp9_encoder && {
5782         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5783             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5784                 disable libvpx_vp9_encoder;
5785     }
5786     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5787         die "libvpx enabled but no supported decoders found"
5788     fi
5789 }
5790
5791 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5792 enabled libwebp           && {
5793     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5794     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5795 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5796                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5797                                  warn "using libx264 without pkg-config"; } } &&
5798                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5799                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5800                              { check_cpp_condition x264.h "X264_MPEG2" &&
5801                                enable libx262; }
5802 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5803                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||
5804                                die "ERROR: libx265 version must be >= 68."; }
5805 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5806 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5807 enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version
5808 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5809 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
5810                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
5811                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
5812 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
5813 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5814                                 { ! enabled cross_compile && {
5815                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5816                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5817                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5818                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5819                                die "ERROR: mmal not found"; }
5820 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
5821
5822 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5823 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5824                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5825                                die "ERROR: openal not found"; } &&
5826                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5827                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5828 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5829                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5830                                die "ERROR: opencl not found"; } &&
5831                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5832                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5833                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5834 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5835                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5836                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5837                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5838                                die "ERROR: opengl not found."
5839                              }
5840 enabled omx_rpi && enable omx
5841 enabled omx               && { check_header OMX_Core.h ||
5842                                 { ! enabled cross_compile && enabled omx_rpi && {
5843                                     add_cflags -isystem/opt/vc/include/IL ; }
5844                                 check_header OMX_Core.h ; } ||
5845                                die "ERROR: OpenMAX IL headers not found"; }
5846 enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
5847                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||
5848                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5849                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5850                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5851                                die "ERROR: openssl not found"; }
5852 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5853
5854 # libdc1394 check
5855 if enabled libdc1394; then
5856     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5857         enable libdc1394_2; } ||
5858     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5859         enable libdc1394_1; } ||
5860     die "ERROR: No version of libdc1394 found "
5861 fi
5862
5863 if enabled gcrypt; then
5864     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5865     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5866         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5867         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5868         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5869             die "ERROR: gcrypt not found"
5870         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5871     else
5872         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5873     fi
5874 fi
5875
5876 disabled sdl && disable sdl2
5877 if ! disabled sdl2; then
5878     SDL2_CONFIG="${cross_prefix}sdl2-config"
5879     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then
5880         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
5881         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
5882         check_func SDL_Init $sdl2_libs $sdl2_cflags && enable sdl2
5883     else
5884       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
5885         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
5886         sdl2_libs=$("${SDL2_CONFIG}" --libs)
5887         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
5888         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
5889         check_func SDL_Init $sdl2_libs $sdl2_cflags && enable sdl2
5890       fi
5891     fi
5892     if test $target_os = "mingw32"; then
5893         sdl2_libs="$sdl2_libs -mconsole"
5894     fi
5895 fi
5896 enabled sdl2 && add_cflags $sdl2_cflags && add_extralibs $sdl2_libs
5897
5898 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5899     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5900     enable securetransport; }
5901
5902 disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
5903                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }
5904
5905 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5906 enabled makeinfo \
5907     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5908     && enable makeinfo_html || disable makeinfo_html
5909 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5910 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5911 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5912 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5913
5914 check_header linux/fb.h
5915 check_header linux/videodev.h
5916 check_header linux/videodev2.h
5917 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5918
5919 check_header sys/videoio.h
5920 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5921
5922 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5923 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5924 # w32api 3.12 had it defined wrong
5925 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5926
5927 check_type "dshow.h" IBaseFilter
5928
5929 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5930 { check_header dev/bktr/ioctl_meteor.h &&
5931   check_header dev/bktr/ioctl_bt848.h; } ||
5932 { check_header machine/ioctl_meteor.h &&
5933   check_header machine/ioctl_bt848.h; } ||
5934 { check_header dev/video/meteor/ioctl_meteor.h &&
5935   check_header dev/video/bktr/ioctl_bt848.h; } ||
5936 check_header dev/ic/bt8xx.h
5937
5938 check_header sndio.h
5939 if check_struct sys/soundcard.h audio_buf_info bytes; then
5940     enable_safe sys/soundcard.h
5941 else
5942     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5943     #include <sys/soundcard.h>
5944     audio_buf_info abc;
5945 EOF
5946 fi
5947 check_header soundcard.h
5948
5949 enabled_any alsa_indev alsa_outdev &&
5950     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5951
5952 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
5953     check_func jack_port_get_latency_range -ljack
5954
5955 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5956
5957 if enabled libcdio; then
5958     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5959     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5960     die "ERROR: No usable libcdio/cdparanoia found"
5961 fi
5962
5963 enabled xlib &&
5964     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5965
5966 if ! disabled libxcb; then
5967     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5968         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5969     } && disable x11grab && enable libxcb
5970
5971 if enabled libxcb; then
5972     disabled libxcb_shm || {
5973         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5974             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5975         } && check_header sys/shm.h && enable libxcb_shm; }
5976
5977     disabled libxcb_xfixes || {
5978         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5979             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5980         } && enable libxcb_xfixes; }
5981
5982     disabled libxcb_shape || {
5983         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5984             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5985         } && enable libxcb_shape; }
5986
5987     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5988     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5989 fi
5990 fi
5991
5992 if enabled x11grab; then
5993     enabled xlib || die "ERROR: Xlib not found"
5994     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5995     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5996 fi
5997
5998 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5999
6000 enabled dxva2api_h &&
6001     check_cc <<EOF && enable dxva2api_cobj
6002 #define _WIN32_WINNT 0x0600
6003 #define COBJMACROS
6004 #include <windows.h>
6005 #include <d3d9.h>
6006 #include <dxva2api.h>
6007 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
6008 EOF
6009
6010 enabled vaapi &&
6011     check_lib va/va.h vaInitialize -lva ||
6012     disable vaapi
6013
6014 enabled vaapi &&
6015     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
6016     disable vaapi
6017
6018 if enabled vaapi ; then
6019     enabled xlib &&
6020     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
6021     enable vaapi_x11
6022
6023     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
6024     enable vaapi_drm
6025 fi
6026
6027 enabled vdpau &&
6028     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
6029     disable vdpau
6030
6031 enabled vdpau && enabled xlib &&
6032     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
6033     enable vdpau_x11
6034
6035 if enabled x86; then
6036     case $target_os in
6037         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6038             ;;
6039         *)
6040             disable cuda cuvid nvenc
6041             ;;
6042     esac
6043 else
6044     disable cuda cuvid nvenc
6045 fi
6046
6047 enabled nvenc &&
6048     check_cc -I$source_path <<EOF || disable nvenc
6049 #include "compat/nvenc/nvEncodeAPI.h"
6050 NV_ENCODE_API_FUNCTION_LIST flist;
6051 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6052 int main(void) { return 0; }
6053 EOF
6054
6055 # Funny iconv installations are not unusual, so check it after all flags have been set
6056 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
6057
6058 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6059
6060 # add some useful compiler flags if supported
6061 check_cflags -Wdeclaration-after-statement
6062 check_cflags -Wall
6063 check_cflags -Wdisabled-optimization
6064 check_cflags -Wpointer-arith
6065 check_cflags -Wredundant-decls
6066 check_cflags -Wwrite-strings
6067 check_cflags -Wtype-limits
6068 check_cflags -Wundef
6069 check_cflags -Wmissing-prototypes
6070 check_cflags -Wno-pointer-to-int-cast
6071 check_cflags -Wstrict-prototypes
6072 check_cflags -Wempty-body
6073 enabled extra_warnings && check_cflags -Winline
6074 enabled extra_warnings && check_cflags -Wcast-qual
6075
6076 check_disable_warning(){
6077     warning_flag=-W${1#-Wno-}
6078     test_cflags $warning_flag && add_cflags $1
6079 }
6080
6081 check_disable_warning -Wno-parentheses
6082 check_disable_warning -Wno-switch
6083 check_disable_warning -Wno-format-zero-length
6084 check_disable_warning -Wno-pointer-sign
6085 check_disable_warning -Wno-unused-const-variable
6086
6087 # add some linker flags
6088 check_ldflags -Wl,--warn-common
6089 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6090 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
6091 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
6092 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6093
6094 # add some strip flags
6095 # -wN '..@*' is more selective than -x, but not available everywhere.
6096 check_stripflags -wN \'..@*\' || check_stripflags -x
6097
6098 enabled neon_clobber_test &&
6099     check_ldflags -Wl,--wrap,avcodec_open2              \
6100                   -Wl,--wrap,avcodec_decode_audio4      \
6101                   -Wl,--wrap,avcodec_decode_video2      \
6102                   -Wl,--wrap,avcodec_decode_subtitle2   \
6103                   -Wl,--wrap,avcodec_encode_audio2      \
6104                   -Wl,--wrap,avcodec_encode_video2      \
6105                   -Wl,--wrap,avcodec_send_packet        \
6106                   -Wl,--wrap,avcodec_receive_frame      \
6107                   -Wl,--wrap,avcodec_send_frame         \
6108                   -Wl,--wrap,avcodec_receive_packet     \
6109                   -Wl,--wrap,avcodec_encode_subtitle    \
6110                   -Wl,--wrap,swr_convert                \
6111                   -Wl,--wrap,avresample_convert ||
6112     disable neon_clobber_test
6113
6114 enabled xmm_clobber_test &&
6115     check_ldflags -Wl,--wrap,avcodec_open2              \
6116                   -Wl,--wrap,avcodec_decode_audio4      \
6117                   -Wl,--wrap,avcodec_decode_video2      \
6118                   -Wl,--wrap,avcodec_decode_subtitle2   \
6119                   -Wl,--wrap,avcodec_encode_audio2      \
6120                   -Wl,--wrap,avcodec_encode_video2      \
6121                   -Wl,--wrap,avcodec_encode_subtitle    \
6122                   -Wl,--wrap,avcodec_send_packet        \
6123                   -Wl,--wrap,avcodec_receive_frame      \
6124                   -Wl,--wrap,avcodec_send_frame         \
6125                   -Wl,--wrap,avcodec_receive_packet     \
6126                   -Wl,--wrap,swr_convert                \
6127                   -Wl,--wrap,avresample_convert         \
6128                   -Wl,--wrap,sws_scale ||
6129     disable xmm_clobber_test
6130
6131 check_ld "cc" <<EOF && enable proper_dce
6132 extern const int array[512];
6133 static inline int func(void) { return array[0]; }
6134 int main(void) { return 0; }
6135 EOF
6136
6137 if enabled proper_dce; then
6138     echo "X { local: *; };" > $TMPV
6139     if test_ldflags -Wl,${version_script},$TMPV; then
6140         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6141         check_cc <<EOF && enable symver_asm_label
6142 void ff_foo(void) __asm__ ("av_foo@VERSION");
6143 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6144 EOF
6145         check_cc <<EOF && enable symver_gnu_asm
6146 __asm__(".symver ff_foo,av_foo@VERSION");
6147 void ff_foo(void) {}
6148 EOF
6149     fi
6150 fi
6151
6152 if [ -z "$optflags" ]; then
6153     if enabled small; then
6154         optflags=$cflags_size
6155     elif enabled optimizations; then
6156         optflags=$cflags_speed
6157     else
6158         optflags=$cflags_noopt
6159     fi
6160 fi
6161
6162 check_optflags(){
6163     check_cflags "$@"
6164     enabled lto && check_ldflags "$@"
6165 }
6166
6167
6168 if enabled lto; then
6169     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6170     check_cflags  -flto
6171     check_ldflags -flto $cpuflags
6172     disable inline_asm_direct_symbol_refs
6173 fi
6174
6175 check_optflags $optflags
6176 check_optflags -fno-math-errno
6177 check_optflags -fno-signed-zeros
6178
6179 enabled ftrapv && check_cflags -ftrapv
6180
6181 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6182 int x;
6183 EOF
6184
6185
6186 if enabled icc; then
6187     # Just warnings, no remarks
6188     check_cflags -w1
6189     # -wd: Disable following warnings
6190     # 144, 167, 556: -Wno-pointer-sign
6191     # 188: enumerated type mixed with another type
6192     # 1292: attribute "foo" ignored
6193     # 1419: external declaration in primary source file
6194     # 10006: ignoring unknown option -fno-signed-zeros
6195     # 10148: ignoring unknown option -Wno-parentheses
6196     # 10156: ignoring option '-W'; no argument required
6197     # 13200: No EMMS instruction before call to function
6198     # 13203: No EMMS instruction before return from function
6199     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6200     # 11030: Warning unknown option --as-needed
6201     # 10156: ignoring option '-export'; no argument required
6202     check_ldflags -wd10156,11030
6203     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6204     enable ebp_available
6205     # The test above does not test linking
6206     enabled lto && disable symver_asm_label
6207     if enabled x86_32; then
6208         icc_version=$($cc -dumpversion)
6209         test ${icc_version%%.*} -ge 11 &&
6210             check_cflags -falign-stack=maintain-16-byte ||
6211             disable aligned_stack
6212     fi
6213 elif enabled ccc; then
6214     # disable some annoying warnings
6215     add_cflags -msg_disable bitnotint
6216     add_cflags -msg_disable mixfuncvoid
6217     add_cflags -msg_disable nonstandcast
6218     add_cflags -msg_disable unsupieee
6219 elif enabled gcc; then
6220     check_optflags -fno-tree-vectorize
6221     check_cflags -Werror=format-security
6222     check_cflags -Werror=implicit-function-declaration
6223     check_cflags -Werror=missing-prototypes
6224     check_cflags -Werror=return-type
6225     check_cflags -Werror=vla
6226     check_cflags -Wformat
6227     check_cflags -fdiagnostics-color=auto
6228     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6229 elif enabled llvm_gcc; then
6230     check_cflags -mllvm -stack-alignment=16
6231 elif enabled clang; then
6232     check_cflags -mllvm -stack-alignment=16
6233     check_cflags -mstack-alignment=16
6234     check_cflags -Qunused-arguments
6235     check_cflags -Werror=implicit-function-declaration
6236     check_cflags -Werror=missing-prototypes
6237     check_cflags -Werror=return-type
6238 elif enabled cparser; then
6239     add_cflags -Wno-missing-variable-declarations
6240     add_cflags -Wno-empty-statement
6241 elif enabled armcc; then
6242     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6243     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6244     # 2523: use of inline assembly is deprecated
6245     add_cflags -W${armcc_opt},--diag_suppress=2523
6246     add_cflags -W${armcc_opt},--diag_suppress=1207
6247     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6248     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6249     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6250     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6251 elif enabled tms470; then
6252     add_cflags -pds=824 -pds=837
6253     disable inline_asm
6254 elif enabled pathscale; then
6255     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6256 elif enabled_any msvc icl; then
6257     enabled x86_32 && disable aligned_stack
6258     enabled_all x86_32 debug && add_cflags -Oy-
6259     enabled debug && add_ldflags -debug
6260     enable pragma_deprecated
6261     if enabled icl; then
6262         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6263         # (correctly) on icl 13.x.
6264         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6265             add_cflags -Qansi-alias
6266         # Some inline asm is not compilable in debug
6267         if enabled debug; then
6268             disable ebp_available
6269             disable ebx_available
6270         fi
6271     fi
6272     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6273     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6274     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6275     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6276     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6277     # MSVC 2013 and newer can handle it fine.
6278     # If this declspec fails, force including stdlib.h before the restrict redefinition
6279     # happens in config.h.
6280     if [ $_restrict != restrict ]; then
6281         check_cc <<EOF || add_cflags -FIstdlib.h
6282 __declspec($_restrict) void* foo(int);
6283 EOF
6284     fi
6285     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
6286     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6287     # this flag should be re-checked on newer compiler releases and put under a
6288     # version check once its fixed
6289     check_cflags -d2SSAOptimizer-
6290 fi
6291
6292 for pfx in "" host_; do
6293     varname=${pfx%_}cc_type
6294     eval "type=\$$varname"
6295     if [ $type = "msvc" ]; then
6296         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6297 static inline int foo(int a) { return a; }
6298 EOF
6299     fi
6300 done
6301
6302 case $as_type in
6303     clang)
6304         add_asflags -Qunused-arguments
6305     ;;
6306 esac
6307
6308 case $ld_type in
6309     clang)
6310         check_ldflags -Qunused-arguments
6311     ;;
6312 esac
6313
6314 case $target_os in
6315     osf1)
6316         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6317     ;;
6318     plan9)
6319         add_cppflags -Dmain=plan9_main
6320     ;;
6321 esac
6322
6323 enable frame_thread_encoder
6324
6325 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6326
6327 check_deps $CONFIG_LIST       \
6328            $CONFIG_EXTRA      \
6329            $HAVE_LIST         \
6330            $ALL_COMPONENTS    \
6331
6332 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"
6333
6334
6335 if test $target_os = "haiku"; then
6336     disable memalign
6337     disable posix_memalign
6338 fi
6339
6340 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6341     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
6342     enable dxva2_lib
6343
6344 ! enabled_any memalign posix_memalign aligned_malloc &&
6345     enabled simd_align_16 && enable memalign_hack
6346
6347 # add_dep lib dep
6348 # -> enable ${lib}_deps_${dep}
6349 # -> add $dep to ${lib}_deps only once
6350 add_dep() {
6351     lib=$1
6352     dep=$2
6353     enabled "${lib}_deps_${dep}" && return 0
6354     enable  "${lib}_deps_${dep}"
6355     prepend "${lib}_deps" $dep
6356 }
6357
6358 # merge deps lib components
6359 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6360 merge_deps() {
6361     lib=$1
6362     shift
6363     for comp in $*; do
6364         enabled $comp || continue
6365         eval "dep=\"\$${comp}_deps\""
6366         for d in $dep; do
6367             add_dep $lib $d
6368         done
6369     done
6370 }
6371
6372 merge_deps libavfilter $FILTER_LIST
6373
6374 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6375
6376 for thread in $THREADS_LIST; do
6377     if enabled $thread; then
6378         test -n "$thread_type" &&
6379             die "ERROR: Only one thread type must be selected." ||
6380             thread_type="$thread"
6381     fi
6382 done
6383
6384 if disabled stdatomic_h; then
6385     if enabled atomics_gcc; then
6386         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
6387     elif enabled atomics_win32; then
6388         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
6389     elif enabled atomics_suncc; then
6390         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
6391     fi
6392 fi
6393
6394 enabled zlib && add_cppflags -DZLIB_CONST
6395
6396 # conditional library dependencies, in linking order
6397 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6398 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6399 enabled aresample_filter    && prepend avfilter_deps "swresample"
6400 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6401 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6402 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6403 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6404 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6405 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6406 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6407 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6408 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6409 enabled pan_filter          && prepend avfilter_deps "swresample"
6410 enabled pp_filter           && prepend avfilter_deps "postproc"
6411 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6412 enabled resample_filter && prepend avfilter_deps "avresample"
6413 enabled sab_filter          && prepend avfilter_deps "swscale"
6414 enabled scale_filter    && prepend avfilter_deps "swscale"
6415 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6416 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6417 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6418 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6419 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6420 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6421 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6422 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6423 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6424
6425 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6426
6427 enabled opus_decoder    && prepend avcodec_deps "swresample"
6428
6429 expand_deps(){
6430     lib_deps=${1}_deps
6431     eval "deps=\$$lib_deps"
6432     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6433     unique $lib_deps
6434 }
6435
6436 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6437 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6438
6439 map 'expand_deps $v' $LIBRARY_LIST
6440
6441 echo "install prefix            $prefix"
6442 echo "source path               $source_path"
6443 echo "C compiler                $cc"
6444 echo "C library                 $libc_type"
6445 if test "$host_cc" != "$cc"; then
6446     echo "host C compiler           $host_cc"
6447     echo "host C library            $host_libc_type"
6448 fi
6449 echo "ARCH                      $arch ($cpu)"
6450 if test "$build_suffix" != ""; then
6451     echo "build suffix              $build_suffix"
6452 fi
6453 if test "$progs_suffix" != ""; then
6454     echo "progs suffix              $progs_suffix"
6455 fi
6456 if test "$extra_version" != ""; then
6457     echo "version string suffix     $extra_version"
6458 fi
6459 echo "big-endian                ${bigendian-no}"
6460 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6461 if enabled x86; then
6462     echo "${yasmexe}                      ${yasm-no}"
6463     echo "MMX enabled               ${mmx-no}"
6464     echo "MMXEXT enabled            ${mmxext-no}"
6465     echo "3DNow! enabled            ${amd3dnow-no}"
6466     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6467     echo "SSE enabled               ${sse-no}"
6468     echo "SSSE3 enabled             ${ssse3-no}"
6469     echo "AESNI enabled             ${aesni-no}"
6470     echo "AVX enabled               ${avx-no}"
6471     echo "XOP enabled               ${xop-no}"
6472     echo "FMA3 enabled              ${fma3-no}"
6473     echo "FMA4 enabled              ${fma4-no}"
6474     echo "i686 features enabled     ${i686-no}"
6475     echo "CMOV is fast              ${fast_cmov-no}"
6476     echo "EBX available             ${ebx_available-no}"
6477     echo "EBP available             ${ebp_available-no}"
6478 fi
6479 if enabled aarch64; then
6480     echo "NEON enabled              ${neon-no}"
6481     echo "VFP enabled               ${vfp-no}"
6482 fi
6483 if enabled arm; then
6484     echo "ARMv5TE enabled           ${armv5te-no}"
6485     echo "ARMv6 enabled             ${armv6-no}"
6486     echo "ARMv6T2 enabled           ${armv6t2-no}"
6487     echo "VFP enabled               ${vfp-no}"
6488     echo "NEON enabled              ${neon-no}"
6489     echo "THUMB enabled             ${thumb-no}"
6490 fi
6491 if enabled mips; then
6492     echo "MIPS FPU enabled          ${mipsfpu-no}"
6493     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6494     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6495     echo "MIPS MSA enabled          ${msa-no}"
6496     echo "LOONGSON MMI enabled      ${mmi-no}"
6497 fi
6498 if enabled ppc; then
6499     echo "AltiVec enabled           ${altivec-no}"
6500     echo "VSX enabled               ${vsx-no}"
6501     echo "POWER8 enabled            ${power8-no}"
6502     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6503     echo "dcbzl available           ${dcbzl-no}"
6504 fi
6505 echo "debug symbols             ${debug-no}"
6506 echo "strip symbols             ${stripping-no}"
6507 echo "optimize for size         ${small-no}"
6508 echo "optimizations             ${optimizations-no}"
6509 echo "static                    ${static-no}"
6510 echo "shared                    ${shared-no}"
6511 echo "postprocessing support    ${postproc-no}"
6512 echo "new filter support        ${avfilter-no}"
6513 echo "network support           ${network-no}"
6514 echo "threading support         ${thread_type-no}"
6515 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6516 echo "SDL2 support              ${sdl2-no}"
6517 echo "opencl enabled            ${opencl-no}"
6518 echo "JNI support               ${jni-no}"
6519 echo "texi2html enabled         ${texi2html-no}"
6520 echo "perl enabled              ${perl-no}"
6521 echo "pod2man enabled           ${pod2man-no}"
6522 echo "makeinfo enabled          ${makeinfo-no}"
6523 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6524 test -n "$random_seed" &&
6525     echo "random seed               ${random_seed}"
6526 echo
6527
6528 echo "Enabled programs:"
6529 print_enabled '' $PROGRAM_LIST | print_in_columns
6530 echo
6531
6532 echo "External libraries:"
6533 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6534 echo
6535
6536 echo "External libraries providing hardware acceleration:"
6537 print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns
6538 echo
6539
6540 echo "Libraries:"
6541 print_enabled '' $LIBRARY_LIST | print_in_columns
6542 echo
6543
6544 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6545     echo "Enabled ${type}s:"
6546     eval list=\$$(toupper $type)_LIST
6547     print_enabled '_*' $list | print_in_columns
6548     echo
6549 done
6550
6551 license="LGPL version 2.1 or later"
6552 if enabled nonfree; then
6553     license="nonfree and unredistributable"
6554 elif enabled gplv3; then
6555     license="GPL version 3 or later"
6556 elif enabled lgplv3; then
6557     license="LGPL version 3 or later"
6558 elif enabled gpl; then
6559     license="GPL version 2 or later"
6560 fi
6561
6562 echo "License: $license"
6563
6564 echo "Creating config.mak, config.h, and doc/config.texi..."
6565
6566 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6567
6568 enabled stripping || strip="echo skipping strip"
6569
6570 config_files="$TMPH config.mak doc/config.texi"
6571
6572 cat > config.mak <<EOF
6573 # Automatically generated by configure - do not modify!
6574 ifndef FFMPEG_CONFIG_MAK
6575 FFMPEG_CONFIG_MAK=1
6576 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6577 prefix=$prefix
6578 LIBDIR=\$(DESTDIR)$libdir
6579 SHLIBDIR=\$(DESTDIR)$shlibdir
6580 INCDIR=\$(DESTDIR)$incdir
6581 BINDIR=\$(DESTDIR)$bindir
6582 DATADIR=\$(DESTDIR)$datadir
6583 DOCDIR=\$(DESTDIR)$docdir
6584 MANDIR=\$(DESTDIR)$mandir
6585 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6586 INSTALL_NAME_DIR=$install_name_dir
6587 SRC_PATH=$source_path
6588 SRC_LINK=$source_link
6589 ifndef MAIN_MAKEFILE
6590 SRC_PATH:=\$(SRC_PATH:.%=..%)
6591 endif
6592 CC_IDENT=$cc_ident
6593 ARCH=$arch
6594 INTRINSICS=$intrinsics
6595 CC=$cc
6596 CXX=$cxx
6597 AS=$as
6598 OBJCC=$objcc
6599 LD=$ld
6600 DEPCC=$dep_cc
6601 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6602 DEPAS=$as
6603 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6604 YASM=$yasmexe
6605 DEPYASM=$yasmexe
6606 AR=$ar
6607 ARFLAGS=$arflags
6608 AR_O=$ar_o
6609 RANLIB=$ranlib
6610 STRIP=$strip
6611 CP=cp -p
6612 LN_S=$ln_s
6613 CPPFLAGS=$CPPFLAGS
6614 CFLAGS=$CFLAGS
6615 CXXFLAGS=$CXXFLAGS
6616 OBJCFLAGS=$OBJCFLAGS
6617 ASFLAGS=$ASFLAGS
6618 AS_C=$AS_C
6619 AS_O=$AS_O
6620 OBJCC_C=$OBJCC_C
6621 OBJCC_E=$OBJCC_E
6622 OBJCC_O=$OBJCC_O
6623 CC_C=$CC_C
6624 CC_E=$CC_E
6625 CC_O=$CC_O
6626 CXX_C=$CXX_C
6627 CXX_O=$CXX_O
6628 LD_O=$LD_O
6629 LD_LIB=$LD_LIB
6630 LD_PATH=$LD_PATH
6631 DLLTOOL=$dlltool
6632 WINDRES=$windres
6633 DEPWINDRES=$dep_cc
6634 DOXYGEN=$doxygen
6635 LDFLAGS=$LDFLAGS
6636 LDEXEFLAGS=$LDEXEFLAGS
6637 LDLIBFLAGS=$LDLIBFLAGS
6638 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6639 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6640 YASMFLAGS=$YASMFLAGS
6641 BUILDSUF=$build_suffix
6642 PROGSSUF=$progs_suffix
6643 FULLNAME=$FULLNAME
6644 LIBPREF=$LIBPREF
6645 LIBSUF=$LIBSUF
6646 LIBNAME=$LIBNAME
6647 SLIBPREF=$SLIBPREF
6648 SLIBSUF=$SLIBSUF
6649 EXESUF=$EXESUF
6650 EXTRA_VERSION=$extra_version
6651 CCDEP=$CCDEP
6652 CXXDEP=$CXXDEP
6653 CCDEP_FLAGS=$CCDEP_FLAGS
6654 ASDEP=$ASDEP
6655 ASDEP_FLAGS=$ASDEP_FLAGS
6656 CC_DEPFLAGS=$CC_DEPFLAGS
6657 AS_DEPFLAGS=$AS_DEPFLAGS
6658 HOSTCC=$host_cc
6659 HOSTLD=$host_ld
6660 HOSTCFLAGS=$host_cflags
6661 HOSTCPPFLAGS=$host_cppflags
6662 HOSTEXESUF=$HOSTEXESUF
6663 HOSTLDFLAGS=$host_ldflags
6664 HOSTLIBS=$host_libs
6665 DEPHOSTCC=$host_cc
6666 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6667 HOSTCCDEP=$HOSTCCDEP
6668 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6669 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6670 HOSTCC_C=$HOSTCC_C
6671 HOSTCC_O=$HOSTCC_O
6672 HOSTLD_O=$HOSTLD_O
6673 TARGET_EXEC=$target_exec $target_exec_args
6674 TARGET_PATH=$target_path
6675 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6676 CFLAGS-ffplay=${sdl2_cflags}
6677 ZLIB=$($ldflags_filter -lz)
6678 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6679 EXTRALIBS=$extralibs
6680 COMPAT_OBJS=$compat_objs
6681 EXEOBJS=$exeobjs
6682 INSTALL=$install
6683 LIBTARGET=${LIBTARGET}
6684 SLIBNAME=${SLIBNAME}
6685 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6686 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6687 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6688 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6689 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6690 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6691 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6692 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6693 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
6694 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6695 NOREDZONE_FLAGS=$noredzone_flags
6696 EOF
6697
6698 get_version(){
6699     lcname=lib${1}
6700     name=$(toupper $lcname)
6701     file=$source_path/$lcname/version.h
6702     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6703     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6704     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6705     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6706     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6707     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6708 }
6709
6710 map 'get_version $v' $LIBRARY_LIST
6711
6712 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6713
6714 print_program_libs(){
6715     eval "program_libs=\$${1}_libs"
6716     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6717 }
6718
6719 map 'print_program_libs $v' $PROGRAM_LIST
6720
6721 cat > $TMPH <<EOF
6722 /* Automatically generated by configure - do not modify! */
6723 #ifndef FFMPEG_CONFIG_H
6724 #define FFMPEG_CONFIG_H
6725 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6726 #define FFMPEG_LICENSE "$(c_escape $license)"
6727 #define CONFIG_THIS_YEAR 2016
6728 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6729 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6730 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6731 #define av_restrict $_restrict
6732 #define EXTERN_PREFIX "${extern_prefix}"
6733 #define EXTERN_ASM ${extern_prefix}
6734 #define BUILDSUF "$build_suffix"
6735 #define SLIBSUF "$SLIBSUF"
6736 #define HAVE_MMX2 HAVE_MMXEXT
6737 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6738 EOF
6739
6740 test -n "$assert_level" &&
6741     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6742
6743 test -n "$malloc_prefix" &&
6744     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6745
6746 if enabled yasm; then
6747     append config_files $TMPASM
6748     printf '' >$TMPASM
6749 fi
6750
6751 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6752
6753
6754 mkdir -p doc
6755 mkdir -p tests
6756 mkdir -p tests/api
6757 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6758
6759 print_config ARCH_   "$config_files" $ARCH_LIST
6760 print_config HAVE_   "$config_files" $HAVE_LIST
6761 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6762                                      $CONFIG_EXTRA      \
6763                                      $ALL_COMPONENTS    \
6764
6765 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6766 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6767
6768 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6769 cp_if_changed $TMPH config.h
6770 touch .config
6771
6772 enabled yasm && cp_if_changed $TMPASM config.asm
6773
6774 cat > $TMPH <<EOF
6775 /* Generated by ffconf */
6776 #ifndef AVUTIL_AVCONFIG_H
6777 #define AVUTIL_AVCONFIG_H
6778 EOF
6779
6780 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6781
6782 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6783
6784 cp_if_changed $TMPH libavutil/avconfig.h
6785
6786 if test -n "$WARNINGS"; then
6787     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6788     enabled fatal_warnings && exit 1
6789 fi
6790
6791 # generate the lists of enabled components
6792 print_enabled_components(){
6793     file=$1
6794     struct_name=$2
6795     name=$3
6796     shift 3
6797     echo "static const $struct_name *$name[] = {" > $TMPH
6798     for c in $*; do
6799         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
6800     done
6801     echo "    NULL };" >> $TMPH
6802     cp_if_changed $TMPH $file
6803 }
6804
6805 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
6806 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
6807
6808 # build pkg-config files
6809
6810 lib_version(){
6811     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6812 }
6813
6814 pkgconfig_generate(){
6815     name=$1
6816     shortname=${name#lib}${build_suffix}
6817     comment=$2
6818     version=$3
6819     libs=$4
6820     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6821     requires=${requires%, }
6822     enabled ${name#lib} || return 0
6823     mkdir -p $name
6824     cat <<EOF > $name/$name${build_suffix}.pc
6825 prefix=$prefix
6826 exec_prefix=\${prefix}
6827 libdir=$libdir
6828 includedir=$incdir
6829
6830 Name: $name
6831 Description: $comment
6832 Version: $version
6833 Requires: $(enabled shared || echo $requires)
6834 Requires.private: $(enabled shared && echo $requires)
6835 Conflicts:
6836 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6837 Libs.private: $(enabled shared && echo $libs)
6838 Cflags: -I\${includedir}
6839 EOF
6840
6841 mkdir -p doc/examples/pc-uninstalled
6842 includedir=${source_path}
6843 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6844     cat <<EOF > doc/examples/pc-uninstalled/${name}-uninstalled.pc
6845 prefix=
6846 exec_prefix=
6847 libdir=\${pcfiledir}/../../../$name
6848 includedir=${includedir}
6849
6850 Name: $name
6851 Description: $comment
6852 Version: $version
6853 Requires: $requires
6854 Conflicts:
6855 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6856 Cflags: -I\${includedir}
6857 EOF
6858 }
6859
6860 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6861 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6862 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6863 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6864 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6865 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6866 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6867 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6868 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"