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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  91   --enable-rpath           use rpath to allow installing libraries in paths
  92                            not part of the dynamic linker search path
  93                            use rpath when linking programs [USE WITH CARE]
  94   --install-name-dir=DIR   Darwin directory name for installed targets
  95
  96 Licensing options:
  97   --enable-gpl             allow use of GPL code, the resulting libs
  98                            and binaries will be under GPL [no]
  99   --enable-version3        upgrade (L)GPL to version 3 [no]
 100   --enable-nonfree         allow use of nonfree code, the resulting libs
 101                            and binaries will be unredistributable [no]
 102
 103 Configuration options:
 104   --disable-static         do not build static libraries [no]
 105   --enable-shared          build shared libraries [no]
 106   --enable-small           optimize for size instead of speed
 107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 108   --enable-gray            enable full grayscale support (slower color)
 109   --disable-swscale-alpha  disable alpha channel support in swscale
 110   --disable-all            disable building components, libraries and programs
 111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 112   --enable-raise-major     increase major version numbers in sonames [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119   --disable-ffserver       disable ffserver build
 120
 121 Documentation options:
 122   --disable-doc            do not build documentation
 123   --disable-htmlpages      do not build HTML documentation pages
 124   --disable-manpages       do not build man documentation pages
 125   --disable-podpages       do not build POD documentation pages
 126   --disable-txtpages       do not build text documentation pages
 127
 128 Component options:
 129   --disable-avdevice       disable libavdevice build
 130   --disable-avcodec        disable libavcodec build
 131   --disable-avformat       disable libavformat build
 132   --disable-swresample     disable libswresample build
 133   --disable-swscale        disable libswscale build
 134   --disable-postproc       disable libpostproc build
 135   --disable-avfilter       disable libavfilter build
 136   --enable-avresample      enable libavresample build [no]
 137   --disable-pthreads       disable pthreads [autodetect]
 138   --disable-w32threads     disable Win32 threads [autodetect]
 139   --disable-os2threads     disable OS/2 threads [autodetect]
 140   --disable-network        disable network support [no]
 141   --disable-dct            disable DCT code
 142   --disable-dwt            disable DWT code
 143   --disable-error-resilience disable error resilience code
 144   --disable-lsp            disable LSP code
 145   --disable-lzo            disable LZO decoder code
 146   --disable-mdct           disable MDCT code
 147   --disable-rdft           disable RDFT code
 148   --disable-fft            disable FFT code
 149   --disable-faan           disable floating point AAN (I)DCT code
 150   --disable-pixelutils     disable pixel utils in libavutil
 151
 152 Hardware accelerators:
 153   --disable-d3d11va        disable D3D11VA code [autodetect]
 154   --disable-dxva2          disable DXVA2 code [autodetect]
 155   --disable-vaapi          disable VAAPI code [autodetect]
 156   --disable-vda            disable VDA code [autodetect]
 157   --disable-vdpau          disable VDPAU code [autodetect]
 158
 159 Hardware-accelerated decoding/encoding:
 160   --enable-cuda            enable dynamically linked CUDA [no]
 161   --enable-cuvid           enable CUVID support [autodetect]
 162   --enable-libmfx          enable HW acceleration through libmfx
 163   --enable-mmal            enable decoding via MMAL [no]
 164   --enable-nvenc           enable NVIDIA NVENC support [no]
 165   --enable-omx             enable encoding via OpenMAX IL [no]
 166   --enable-omx-rpi         enable encoding via OpenMAX IL for Raspberry Pi [no]
 167
 168 Individual component options:
 169   --disable-everything     disable all components listed below
 170   --disable-encoder=NAME   disable encoder NAME
 171   --enable-encoder=NAME    enable encoder NAME
 172   --disable-encoders       disable all encoders
 173   --disable-decoder=NAME   disable decoder NAME
 174   --enable-decoder=NAME    enable decoder NAME
 175   --disable-decoders       disable all decoders
 176   --disable-hwaccel=NAME   disable hwaccel NAME
 177   --enable-hwaccel=NAME    enable hwaccel NAME
 178   --disable-hwaccels       disable all hwaccels
 179   --disable-muxer=NAME     disable muxer NAME
 180   --enable-muxer=NAME      enable muxer NAME
 181   --disable-muxers         disable all muxers
 182   --disable-demuxer=NAME   disable demuxer NAME
 183   --enable-demuxer=NAME    enable demuxer NAME
 184   --disable-demuxers       disable all demuxers
 185   --enable-parser=NAME     enable parser NAME
 186   --disable-parser=NAME    disable parser NAME
 187   --disable-parsers        disable all parsers
 188   --enable-bsf=NAME        enable bitstream filter NAME
 189   --disable-bsf=NAME       disable bitstream filter NAME
 190   --disable-bsfs           disable all bitstream filters
 191   --enable-protocol=NAME   enable protocol NAME
 192   --disable-protocol=NAME  disable protocol NAME
 193   --disable-protocols      disable all protocols
 194   --enable-indev=NAME      enable input device NAME
 195   --disable-indev=NAME     disable input device NAME
 196   --disable-indevs         disable input devices
 197   --enable-outdev=NAME     enable output device NAME
 198   --disable-outdev=NAME    disable output device NAME
 199   --disable-outdevs        disable output devices
 200   --disable-devices        disable all devices
 201   --enable-filter=NAME     enable filter NAME
 202   --disable-filter=NAME    disable filter NAME
 203   --disable-filters        disable all filters
 204
 205 External library support:
 206
 207   Using any of the following switches will allow FFmpeg to link to the
 208   corresponding external library. All the components depending on that library
 209   will become enabled, if all their other dependencies are met and they are not
 210   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 211   libwavpack and allow the libwavpack encoder to be built, unless it is
 212   specifically disabled with --disable-encoder=libwavpack.
 213
 214   Note that only the system libraries are auto-detected. All the other external
 215   libraries must be explicitly enabled.
 216
 217   Also note that the following help text describes the purpose of the libraries
 218   themselves, not all their features will necessarily be usable by FFmpeg.
 219
 220   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]
 221   --enable-avisynth        enable reading of AviSynth script files [no]
 222   --disable-bzlib          disable bzlib [autodetect]
 223   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 224   --enable-frei0r          enable frei0r video filtering [no]
 225   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 226                            if openssl, librtmp or gmp is not used [no]
 227   --enable-gmp             enable gmp, needed for rtmp(t)e support
 228                            if openssl or librtmp is not used [no]
 229   --enable-gnutls          enable gnutls, needed for https support
 230                            if openssl is not used [no]
 231   --disable-iconv          disable iconv [autodetect]
 232   --enable-jni             enable JNI support [no]
 233   --enable-ladspa          enable LADSPA audio filtering [no]
 234   --enable-libass          enable libass subtitles rendering,
 235                            needed for subtitles and ass filter [no]
 236   --enable-libbluray       enable BluRay reading using libbluray [no]
 237   --enable-libbs2b         enable bs2b DSP library [no]
 238   --enable-libcaca         enable textual display using libcaca [no]
 239   --enable-libcelt         enable CELT decoding via libcelt [no]
 240   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 241   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 242                            and libraw1394 [no]
 243   --enable-libebur128      enable libebur128 for EBU R128 measurement,
 244                            needed for loudnorm filter [no]
 245   --enable-libfaac         enable AAC encoding via libfaac [no]
 246   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 247   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 248   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 249   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 250   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 251   --enable-libgme          enable Game Music Emu via libgme [no]
 252   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 253   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 254   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 255   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 256   --enable-libmodplug      enable ModPlug via libmodplug [no]
 257   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 258   --enable-libnut          enable NUT (de)muxing via libnut,
 259                            native (de)muxer exists [no]
 260   --enable-libnpp          enable NVIDIA Performance Primitives-based code [no]
 261   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 262   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 263   --enable-libopencv       enable video filtering via libopencv [no]
 264   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 265   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 266   --enable-libopus         enable Opus de/encoding via libopus [no]
 267   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 268   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 269   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 270   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 271   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 272   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 273   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 274   --enable-libsoxr         enable Include libsoxr resampling [no]
 275   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 276   --enable-libssh          enable SFTP protocol via libssh [no]
 277   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 278   --enable-libtheora       enable Theora encoding via libtheora [no]
 279   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 280   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 281   --enable-libvidstab      enable video stabilization using vid.stab [no]
 282   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 283   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 284                            native implementation exists [no]
 285   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 286   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 287   --enable-libwebp         enable WebP encoding via libwebp [no]
 288   --enable-libx264         enable H.264 encoding via x264 [no]
 289   --enable-libx265         enable HEVC encoding via x265 [no]
 290   --enable-libxavs         enable AVS encoding via xavs [no]
 291   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 292   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 293   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 294   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 295   --enable-libxvid         enable Xvid encoding via xvidcore,
 296                            native MPEG-4/Xvid encoder exists [no]
 297   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 298   --enable-libzmq          enable message passing via libzmq [no]
 299   --enable-libzvbi         enable teletext support via libzvbi [no]
 300   --disable-lzma           disable lzma [autodetect]
 301   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 302   --enable-mediacodec      enable Android MediaCodec support [no]
 303   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 304   --enable-openal          enable OpenAL 1.1 capture support [no]
 305   --enable-opencl          enable OpenCL code
 306   --enable-opengl          enable OpenGL rendering [no]
 307   --enable-openssl         enable openssl, needed for https support
 308                            if gnutls is not used [no]
 309   --disable-schannel       disable SChannel SSP, needed for TLS support on
 310                            Windows if openssl and gnutls are not used [autodetect]
 311   --disable-sdl            disable sdl [autodetect]
 312   --disable-securetransport disable Secure Transport, needed for TLS support
 313                            on OSX if openssl and gnutls are not used [autodetect]
 314   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 315   --enable-x11grab         enable X11 grabbing (legacy) [no]
 316   --disable-xlib           disable xlib [autodetect]
 317   --disable-zlib           disable zlib [autodetect]
 318
 319 Toolchain options:
 320   --arch=ARCH              select architecture [$arch]
 321   --cpu=CPU                select the minimum required CPU (affects
 322                            instruction selection, may crash on older CPUs)
 323   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 324   --progs-suffix=SUFFIX    program name suffix []
 325   --enable-cross-compile   assume a cross-compiler is used
 326   --sysroot=PATH           root of cross-build tree
 327   --sysinclude=PATH        location of cross-build system headers
 328   --target-os=OS           compiler targets OS [$target_os]
 329   --target-exec=CMD        command to run executables on target
 330   --target-path=DIR        path to view of build directory on target
 331   --target-samples=DIR     path to samples directory on target
 332   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 333   --toolchain=NAME         set tool defaults according to NAME
 334   --nm=NM                  use nm tool NM [$nm_default]
 335   --ar=AR                  use archive tool AR [$ar_default]
 336   --as=AS                  use assembler AS [$as_default]
 337   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 338   --strip=STRIP            use strip tool STRIP [$strip_default]
 339   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 340   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 341   --cc=CC                  use C compiler CC [$cc_default]
 342   --cxx=CXX                use C compiler CXX [$cxx_default]
 343   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 344   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 345   --ld=LD                  use linker LD [$ld_default]
 346   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 347   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 348   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 349   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 350   --host-cc=HOSTCC         use host C compiler HOSTCC
 351   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 352   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 353   --host-ld=HOSTLD         use host linker HOSTLD
 354   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 355   --host-libs=HLIBS        use libs HLIBS when linking for host
 356   --host-os=OS             compiler host OS [$target_os]
 357   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 358   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 359   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 360   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 361   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 362   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 363   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 364   --extra-version=STRING   version string suffix []
 365   --optflags=OPTFLAGS      override optimization-related compiler flags
 366   --build-suffix=SUFFIX    library name suffix []
 367   --enable-pic             build position-independent code
 368   --enable-thumb           compile for Thumb instruction set
 369   --enable-lto             use link-time optimization
 370   --env="ENV=override"     override the environment variables
 371
 372 Advanced options (experts only):
 373   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 374   --custom-allocator=NAME  use a supported custom allocator
 375   --disable-symver         disable symbol versioning
 376   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 377   --disable-safe-bitstream-reader
 378                            disable buffer boundary checking in bitreaders
 379                            (faster, but may crash)
 380   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 381   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 382
 383 Optimization options (experts only):
 384   --disable-asm            disable all assembly optimizations
 385   --disable-altivec        disable AltiVec optimizations
 386   --disable-vsx            disable VSX optimizations
 387   --disable-power8         disable POWER8 optimizations
 388   --disable-amd3dnow       disable 3DNow! optimizations
 389   --disable-amd3dnowext    disable 3DNow! extended optimizations
 390   --disable-mmx            disable MMX optimizations
 391   --disable-mmxext         disable MMXEXT optimizations
 392   --disable-sse            disable SSE optimizations
 393   --disable-sse2           disable SSE2 optimizations
 394   --disable-sse3           disable SSE3 optimizations
 395   --disable-ssse3          disable SSSE3 optimizations
 396   --disable-sse4           disable SSE4 optimizations
 397   --disable-sse42          disable SSE4.2 optimizations
 398   --disable-avx            disable AVX optimizations
 399   --disable-xop            disable XOP optimizations
 400   --disable-fma3           disable FMA3 optimizations
 401   --disable-fma4           disable FMA4 optimizations
 402   --disable-avx2           disable AVX2 optimizations
 403   --disable-aesni          disable AESNI optimizations
 404   --disable-armv5te        disable armv5te optimizations
 405   --disable-armv6          disable armv6 optimizations
 406   --disable-armv6t2        disable armv6t2 optimizations
 407   --disable-vfp            disable VFP optimizations
 408   --disable-neon           disable NEON optimizations
 409   --disable-inline-asm     disable use of inline assembly
 410   --disable-yasm           disable use of nasm/yasm assembly
 411   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 412   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 413   --disable-msa            disable MSA optimizations
 414   --disable-mipsfpu        disable floating point MIPS optimizations
 415   --disable-mmi            disable Loongson SIMD optimizations
 416   --disable-fast-unaligned consider unaligned accesses slow
 417
 418 Developer options (useful when working on FFmpeg itself):
 419   --disable-debug          disable debugging symbols
 420   --enable-debug=LEVEL     set the debug level [$debuglevel]
 421   --disable-optimizations  disable compiler optimizations
 422   --enable-extra-warnings  enable more compiler warnings
 423   --disable-stripping      disable stripping of executables and shared libraries
 424   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 425                            2 causes a slowdown at runtime.
 426   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 427   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 428                            leaks and errors, using the specified valgrind binary.
 429                            Cannot be combined with --target-exec
 430   --enable-ftrapv          Trap arithmetic overflows
 431   --samples=PATH           location of test samples for FATE, if not set use
 432                            \$FATE_SAMPLES at make invocation time.
 433   --enable-neon-clobber-test check NEON registers for clobbering (should be
 434                            used only for debugging purposes)
 435   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 436                            should be used only for debugging purposes)
 437   --enable-random          randomly enable/disable components
 438   --disable-random
 439   --enable-random=LIST     randomly enable/disable specific components or
 440   --disable-random=LIST    component groups. LIST is a comma-separated list
 441                            of NAME[:PROB] entries where NAME is a component
 442                            (group) and PROB the probability associated with
 443                            NAME (default 0.5).
 444   --random-seed=VALUE      seed value for --enable/disable-random
 445   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 446                            (only applies to --disable-optimizations builds)
 447
 448 NOTE: Object files are built at the place where configure is launched.
 449 EOF
 450   exit 0
 451 }
 452
 453 quotes='""'
 454 if test -t 1 && which tput >/dev/null 2>&1; then
 455     ncolors=$(tput colors)
 456     if test -n "$ncolors" && test $ncolors -ge 8; then
 457         bold_color=$(tput bold)
 458         warn_color=$(tput setaf 3)
 459         error_color=$(tput setaf 1)
 460         reset_color=$(tput sgr0)
 461     fi
 462     # 72 used instead of 80 since that's the default of pr
 463     ncols=$(tput cols)
 464 fi
 465 : ${ncols:=72}
 466
 467 log(){
 468     echo "$@" >> $logfile
 469 }
 470
 471 log_file(){
 472     log BEGIN $1
 473     pr -n -t $1 >> $logfile
 474     log END $1
 475 }
 476
 477 warn(){
 478     log "WARNING: $*"
 479     WARNINGS="${WARNINGS}WARNING: $*\n"
 480 }
 481
 482 die(){
 483     log "$@"
 484     echo "$error_color$bold_color$@$reset_color"
 485     cat <<EOF
 486
 487 If you think configure made a mistake, make sure you are using the latest
 488 version from Git.  If the latest version fails, report the problem to the
 489 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 490 EOF
 491     if disabled logging; then
 492         cat <<EOF
 493 Rerun configure with logging enabled (do not use --disable-logging), and
 494 include the log this produces with your report.
 495 EOF
 496     else
 497         cat <<EOF
 498 Include the log file "$logfile" produced by configure as this will help
 499 solve the problem.
 500 EOF
 501     fi
 502     exit 1
 503 }
 504
 505 # Avoid locale weirdness, besides we really just want to translate ASCII.
 506 toupper(){
 507     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 508 }
 509
 510 tolower(){
 511     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 512 }
 513
 514 c_escape(){
 515     echo "$*" | sed 's/["\\]/\\\0/g'
 516 }
 517
 518 sh_quote(){
 519     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 520     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 521     echo "$v"
 522 }
 523
 524 cleanws(){
 525     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 526 }
 527
 528 filter(){
 529     pat=$1
 530     shift
 531     for v; do
 532         eval "case $v in $pat) echo $v ;; esac"
 533     done
 534 }
 535
 536 filter_out(){
 537     pat=$1
 538     shift
 539     for v; do
 540         eval "case $v in $pat) ;; *) echo $v ;; esac"
 541     done
 542 }
 543
 544 map(){
 545     m=$1
 546     shift
 547     for v; do eval $m; done
 548 }
 549
 550 add_suffix(){
 551     suffix=$1
 552     shift
 553     for v; do echo ${v}${suffix}; done
 554 }
 555
 556 set_all(){
 557     value=$1
 558     shift
 559     for var in $*; do
 560         eval $var=$value
 561     done
 562 }
 563
 564 set_weak(){
 565     value=$1
 566     shift
 567     for var; do
 568         eval : \${$var:=$value}
 569     done
 570 }
 571
 572 sanitize_var_name(){
 573     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 574 }
 575
 576 set_safe(){
 577     var=$1
 578     shift
 579     eval $(sanitize_var_name "$var")='$*'
 580 }
 581
 582 get_safe(){
 583     eval echo \$$(sanitize_var_name "$1")
 584 }
 585
 586 pushvar(){
 587     for pvar in $*; do
 588         eval level=\${${pvar}_level:=0}
 589         eval ${pvar}_${level}="\$$pvar"
 590         eval ${pvar}_level=$(($level+1))
 591     done
 592 }
 593
 594 popvar(){
 595     for pvar in $*; do
 596         eval level=\${${pvar}_level:-0}
 597         test $level = 0 && continue
 598         eval level=$(($level-1))
 599         eval $pvar="\${${pvar}_${level}}"
 600         eval ${pvar}_level=$level
 601         eval unset ${pvar}_${level}
 602     done
 603 }
 604
 605 enable(){
 606     set_all yes $*
 607 }
 608
 609 disable(){
 610     set_all no $*
 611 }
 612
 613 enable_weak(){
 614     set_weak yes $*
 615 }
 616
 617 disable_weak(){
 618     set_weak no $*
 619 }
 620
 621 enable_safe(){
 622     for var; do
 623         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 624     done
 625 }
 626
 627 disable_safe(){
 628     for var; do
 629         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 630     done
 631 }
 632
 633 do_enable_deep(){
 634     for var; do
 635         enabled $var && continue
 636         eval sel="\$${var}_select"
 637         eval sgs="\$${var}_suggest"
 638         pushvar var sgs
 639         enable_deep $sel
 640         popvar sgs
 641         enable_deep_weak $sgs
 642         popvar var
 643     done
 644 }
 645
 646 enable_deep(){
 647     do_enable_deep $*
 648     enable $*
 649 }
 650
 651 enable_deep_weak(){
 652     for var; do
 653         disabled $var && continue
 654         pushvar var
 655         do_enable_deep $var
 656         popvar var
 657         enable_weak $var
 658     done
 659 }
 660
 661 enabled(){
 662     test "${1#!}" = "$1" && op='=' || op=!=
 663     eval test "x\$${1#!}" $op "xyes"
 664 }
 665
 666 disabled(){
 667     test "${1#!}" = "$1" && op='=' || op=!=
 668     eval test "x\$${1#!}" $op "xno"
 669 }
 670
 671 enabled_all(){
 672     for opt; do
 673         enabled $opt || return 1
 674     done
 675 }
 676
 677 disabled_all(){
 678     for opt; do
 679         disabled $opt || return 1
 680     done
 681 }
 682
 683 enabled_any(){
 684     for opt; do
 685         enabled $opt && return 0
 686     done
 687 }
 688
 689 disabled_any(){
 690     for opt; do
 691         disabled $opt && return 0
 692     done
 693     return 1
 694 }
 695
 696 set_default(){
 697     for opt; do
 698         eval : \${$opt:=\$${opt}_default}
 699     done
 700 }
 701
 702 is_in(){
 703     value=$1
 704     shift
 705     for var in $*; do
 706         [ $var = $value ] && return 0
 707     done
 708     return 1
 709 }
 710
 711 do_check_deps(){
 712     for cfg; do
 713         cfg="${cfg#!}"
 714         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 715         disabled ${cfg}_checking && continue
 716         enable ${cfg}_checking
 717         append allopts $cfg
 718
 719         eval dep_all="\$${cfg}_deps"
 720         eval dep_any="\$${cfg}_deps_any"
 721         eval dep_sel="\$${cfg}_select"
 722         eval dep_sgs="\$${cfg}_suggest"
 723         eval dep_ifa="\$${cfg}_if"
 724         eval dep_ifn="\$${cfg}_if_any"
 725
 726         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 727         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 728         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 729
 730         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 731         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 732         enabled_all  $dep_all || disable $cfg
 733         enabled_any  $dep_any || disable $cfg
 734         disabled_any $dep_sel && disable $cfg
 735
 736         if enabled $cfg; then
 737             enable_deep $dep_sel
 738             enable_deep_weak $dep_sgs
 739         fi
 740
 741         disable ${cfg}_checking
 742     done
 743 }
 744
 745 check_deps(){
 746     unset allopts
 747
 748     do_check_deps "$@"
 749
 750     for cfg in $allopts; do
 751         enabled $cfg || continue
 752         eval dep_extralibs="\$${cfg}_extralibs"
 753         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 754     done
 755 }
 756
 757 print_config(){
 758     pfx=$1
 759     files=$2
 760     shift 2
 761     map 'eval echo "$v \${$v:-no}"' "$@" |
 762     awk "BEGIN { split(\"$files\", files) }
 763         {
 764             c = \"$pfx\" toupper(\$1);
 765             v = \$2;
 766             sub(/yes/, 1, v);
 767             sub(/no/,  0, v);
 768             for (f in files) {
 769                 file = files[f];
 770                 if (file ~ /\\.h\$/) {
 771                     printf(\"#define %s %d\\n\", c, v) >>file;
 772                 } else if (file ~ /\\.asm\$/) {
 773                     printf(\"%%define %s %d\\n\", c, v) >>file;
 774                 } else if (file ~ /\\.mak\$/) {
 775                     n = -v ? \"\" : \"!\";
 776                     printf(\"%s%s=yes\\n\", n, c) >>file;
 777                 } else if (file ~ /\\.texi\$/) {
 778                     pre = -v ? \"\" : \"@c \";
 779                     yesno = \$2;
 780                     c2 = tolower(c);
 781                     gsub(/_/, \"-\", c2);
 782                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 783                 }
 784             }
 785         }"
 786 }
 787
 788 print_enabled(){
 789     suf=$1
 790     shift
 791     for v; do
 792         enabled $v && printf "%s\n" ${v%$suf}
 793     done
 794 }
 795
 796 append(){
 797     var=$1
 798     shift
 799     eval "$var=\"\$$var $*\""
 800 }
 801
 802 prepend(){
 803     var=$1
 804     shift
 805     eval "$var=\"$* \$$var\""
 806 }
 807
 808 unique(){
 809     var=$1
 810     uniq_list=""
 811     for tok in $(eval echo \$$var); do
 812         uniq_list="$(filter_out $tok $uniq_list) $tok"
 813     done
 814     eval "$var=\"${uniq_list}\""
 815 }
 816
 817 add_cppflags(){
 818     append CPPFLAGS "$@"
 819 }
 820
 821 add_cflags(){
 822     append CFLAGS $($cflags_filter "$@")
 823 }
 824
 825 add_cxxflags(){
 826     append CXXFLAGS $($cflags_filter "$@")
 827 }
 828
 829 add_asflags(){
 830     append ASFLAGS $($asflags_filter "$@")
 831 }
 832
 833 add_objcflags(){
 834     append OBJCFLAGS $($objcflags_filter "$@")
 835 }
 836
 837 add_ldflags(){
 838     append LDFLAGS $($ldflags_filter "$@")
 839 }
 840
 841 add_ldexeflags(){
 842     append LDEXEFLAGS $($ldflags_filter "$@")
 843 }
 844
 845 add_ldlibflags(){
 846     append LDLIBFLAGS $($ldflags_filter "$@")
 847 }
 848
 849 add_stripflags(){
 850     append ASMSTRIPFLAGS "$@"
 851 }
 852
 853 add_extralibs(){
 854     prepend extralibs $($ldflags_filter "$@")
 855 }
 856
 857 add_host_cppflags(){
 858     append host_cppflags "$@"
 859 }
 860
 861 add_host_cflags(){
 862     append host_cflags $($host_cflags_filter "$@")
 863 }
 864
 865 add_host_ldflags(){
 866     append host_ldflags $($host_ldflags_filter "$@")
 867 }
 868
 869 add_compat(){
 870     append compat_objs $1
 871     shift
 872     map 'add_cppflags -D$v' "$@"
 873 }
 874
 875 check_cmd(){
 876     log "$@"
 877     "$@" >> $logfile 2>&1
 878 }
 879
 880 check_stat(){
 881     log check_stat "$@"
 882     stat "$1" >> $logfile 2>&1
 883 }
 884
 885 cc_o(){
 886     eval printf '%s\\n' $CC_O
 887 }
 888
 889 cc_e(){
 890     eval printf '%s\\n' $CC_E
 891 }
 892
 893 check_cc(){
 894     log check_cc "$@"
 895     cat > $TMPC
 896     log_file $TMPC
 897     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 898 }
 899
 900 check_cxx(){
 901     log check_cxx "$@"
 902     cat > $TMPCPP
 903     log_file $TMPCPP
 904     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 905 }
 906
 907 check_objcc(){
 908     log check_objcc "$@"
 909     cat > $TMPM
 910     log_file $TMPM
 911     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 912 }
 913
 914 check_cpp(){
 915     log check_cpp "$@"
 916     cat > $TMPC
 917     log_file $TMPC
 918     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 919 }
 920
 921 as_o(){
 922     eval printf '%s\\n' $AS_O
 923 }
 924
 925 check_as(){
 926     log check_as "$@"
 927     cat > $TMPS
 928     log_file $TMPS
 929     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 930 }
 931
 932 check_inline_asm(){
 933     log check_inline_asm "$@"
 934     name="$1"
 935     code="$2"
 936     shift 2
 937     disable $name
 938     check_cc "$@" <<EOF && enable $name
 939 void foo(void){ __asm__ volatile($code); }
 940 EOF
 941 }
 942
 943 check_inline_asm_flags(){
 944     log check_inline_asm_flags "$@"
 945     name="$1"
 946     code="$2"
 947     flags=''
 948     shift 2
 949     while [ "$1" != "" ]; do
 950       append flags $1
 951       shift
 952     done;
 953     disable $name
 954     cat > $TMPC <<EOF
 955 void foo(void){ __asm__ volatile($code); }
 956 EOF
 957     log_file $TMPC
 958     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 959     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 960 }
 961
 962 check_insn(){
 963     log check_insn "$@"
 964     check_inline_asm ${1}_inline "\"$2\""
 965     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 966 }
 967
 968 check_yasm(){
 969     log check_yasm "$@"
 970     echo "$1" > $TMPS
 971     log_file $TMPS
 972     shift 1
 973     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 974 }
 975
 976 ld_o(){
 977     eval printf '%s\\n' $LD_O
 978 }
 979
 980 check_ld(){
 981     log check_ld "$@"
 982     type=$1
 983     shift 1
 984     flags=$(filter_out '-l*|*.so' $@)
 985     libs=$(filter '-l*|*.so' $@)
 986     check_$type $($cflags_filter $flags) || return
 987     flags=$($ldflags_filter $flags)
 988     libs=$($ldflags_filter $libs)
 989     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 990 }
 991
 992 print_include(){
 993     hdr=$1
 994     test "${hdr%.h}" = "${hdr}" &&
 995         echo "#include $hdr"    ||
 996         echo "#include <$hdr>"
 997 }
 998
 999 check_code(){
1000     log check_code "$@"
1001     check=$1
1002     headers=$2
1003     code=$3
1004     shift 3
1005     {
1006         for hdr in $headers; do
1007             print_include $hdr
1008         done
1009         echo "int main(void) { $code; return 0; }"
1010     } | check_$check "$@"
1011 }
1012
1013 check_cppflags(){
1014     log check_cppflags "$@"
1015     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1016 int x;
1017 EOF
1018 }
1019
1020 test_cflags(){
1021     log test_cflags "$@"
1022     set -- $($cflags_filter "$@")
1023     check_cc "$@" <<EOF
1024 int x;
1025 EOF
1026 }
1027
1028 check_cflags(){
1029     log check_cflags "$@"
1030     test_cflags "$@" && add_cflags "$@"
1031 }
1032
1033 check_cxxflags(){
1034     log check_cxxflags "$@"
1035     set -- $($cflags_filter "$@")
1036     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1037 int x;
1038 EOF
1039 }
1040
1041 test_objcflags(){
1042     log test_cflags "$@"
1043     set -- $($cflags_filter "$@")
1044     check_objcc "$@" <<EOF
1045 int x;
1046 EOF
1047 }
1048
1049 check_objcflags(){
1050     log check_cflags "$@"
1051     test_objcflags "$@" && add_objcflags "$@"
1052 }
1053
1054 test_ldflags(){
1055     log test_ldflags "$@"
1056     check_ld "cc" "$@" <<EOF
1057 int main(void){ return 0; }
1058 EOF
1059 }
1060
1061 check_ldflags(){
1062     log check_ldflags "$@"
1063     test_ldflags "$@" && add_ldflags "$@"
1064 }
1065
1066 test_stripflags(){
1067     log test_stripflags "$@"
1068     # call check_cc to get a fresh TMPO
1069     check_cc <<EOF
1070 int main(void) { return 0; }
1071 EOF
1072     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1073 }
1074
1075 check_stripflags(){
1076     log check_stripflags "$@"
1077     test_stripflags "$@" && add_stripflags "$@"
1078 }
1079
1080 check_header(){
1081     log check_header "$@"
1082     header=$1
1083     shift
1084     disable_safe $header
1085     check_cpp "$@" <<EOF && enable_safe $header
1086 #include <$header>
1087 int x;
1088 EOF
1089 }
1090
1091 check_header_objcc(){
1092     log check_header_objcc "$@"
1093     rm -f -- "$TMPO"
1094     header=$1
1095     shift
1096     disable_safe $header
1097     {
1098        echo "#include <$header>"
1099        echo "int main(void) { return 0; }"
1100     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1101 }
1102
1103 check_func(){
1104     log check_func "$@"
1105     func=$1
1106     shift
1107     disable $func
1108     check_ld "cc" "$@" <<EOF && enable $func
1109 extern int $func();
1110 int main(void){ $func(); }
1111 EOF
1112 }
1113
1114 check_complexfunc(){
1115     log check_complexfunc "$@"
1116     func=$1
1117     narg=$2
1118     shift 2
1119     test $narg = 2 && args="f, g" || args="f * I"
1120     disable $func
1121     check_ld "cc" "$@" <<EOF && enable $func
1122 #include <complex.h>
1123 #include <math.h>
1124 float foo(complex float f, complex float g) { return $func($args); }
1125 int main(void){ return (int) foo; }
1126 EOF
1127 }
1128
1129 check_mathfunc(){
1130     log check_mathfunc "$@"
1131     func=$1
1132     narg=$2
1133     shift 2
1134     test $narg = 2 && args="f, g" || args="f"
1135     disable $func
1136     check_ld "cc" "$@" <<EOF && enable $func
1137 #include <math.h>
1138 float foo(float f, float g) { return $func($args); }
1139 int main(void){ return (int) foo; }
1140 EOF
1141 }
1142
1143 check_func_headers(){
1144     log check_func_headers "$@"
1145     headers=$1
1146     funcs=$2
1147     shift 2
1148     {
1149         for hdr in $headers; do
1150             print_include $hdr
1151         done
1152         for func in $funcs; do
1153             echo "long check_$func(void) { return (long) $func; }"
1154         done
1155         echo "int main(void) { return 0; }"
1156     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1157 }
1158
1159 check_class_headers_cpp(){
1160     log check_class_headers_cpp "$@"
1161     headers=$1
1162     classes=$2
1163     shift 2
1164     {
1165         for hdr in $headers; do
1166             echo "#include <$hdr>"
1167         done
1168         echo "int main(void) { "
1169         i=1
1170         for class in $classes; do
1171             echo "$class obj$i;"
1172             i=$(expr $i + 1)
1173         done
1174         echo "return 0; }"
1175     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1176 }
1177
1178 check_cpp_condition(){
1179     log check_cpp_condition "$@"
1180     header=$1
1181     condition=$2
1182     shift 2
1183     check_cpp "$@" <<EOF
1184 #include <$header>
1185 #if !($condition)
1186 #error "unsatisfied condition: $condition"
1187 #endif
1188 EOF
1189 }
1190
1191 check_lib(){
1192     log check_lib "$@"
1193     header="$1"
1194     func="$2"
1195     shift 2
1196     check_header $header && check_func $func "$@" && add_extralibs "$@"
1197 }
1198
1199 check_lib2(){
1200     log check_lib2 "$@"
1201     headers="$1"
1202     funcs="$2"
1203     shift 2
1204     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1205 }
1206
1207 check_lib_cpp(){
1208     log check_lib_cpp "$@"
1209     headers="$1"
1210     classes="$2"
1211     shift 2
1212     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1213 }
1214
1215 check_pkg_config(){
1216     log check_pkg_config "$@"
1217     pkgandversion="$1"
1218     pkg="${1%% *}"
1219     headers="$2"
1220     funcs="$3"
1221     shift 3
1222     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1223     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1224     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1225     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1226         set_safe "${pkg}_cflags" $pkg_cflags   &&
1227         set_safe "${pkg}_libs"   $pkg_libs
1228 }
1229
1230 check_exec(){
1231     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1232 }
1233
1234 check_exec_crash(){
1235     code=$(cat)
1236
1237     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1238     # are safe but may not be available everywhere.  Thus we use
1239     # raise(SIGTERM) instead.  The check is run in a subshell so we
1240     # can redirect the "Terminated" message from the shell.  SIGBUS
1241     # is not defined by standard C so it is used conditionally.
1242
1243     (check_exec "$@") >> $logfile 2>&1 <<EOF
1244 #include <signal.h>
1245 static void sighandler(int sig){
1246     raise(SIGTERM);
1247 }
1248 int foo(void){
1249     $code
1250 }
1251 int (*func_ptr)(void) = foo;
1252 int main(void){
1253     signal(SIGILL, sighandler);
1254     signal(SIGFPE, sighandler);
1255     signal(SIGSEGV, sighandler);
1256 #ifdef SIGBUS
1257     signal(SIGBUS, sighandler);
1258 #endif
1259     return func_ptr();
1260 }
1261 EOF
1262 }
1263
1264 check_type(){
1265     log check_type "$@"
1266     headers=$1
1267     type=$2
1268     shift 2
1269     disable_safe "$type"
1270     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1271 }
1272
1273 check_struct(){
1274     log check_struct "$@"
1275     headers=$1
1276     struct=$2
1277     member=$3
1278     shift 3
1279     disable_safe "${struct}_${member}"
1280     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1281         enable_safe "${struct}_${member}"
1282 }
1283
1284 check_builtin(){
1285     log check_builtin "$@"
1286     name=$1
1287     headers=$2
1288     builtin=$3
1289     shift 3
1290     disable "$name"
1291     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1292 }
1293
1294 check_compile_assert(){
1295     log check_compile_assert "$@"
1296     name=$1
1297     headers=$2
1298     condition=$3
1299     shift 3
1300     disable "$name"
1301     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1302 }
1303
1304 require(){
1305     name="$1"
1306     header="$2"
1307     func="$3"
1308     shift 3
1309     check_lib $header $func "$@" || die "ERROR: $name not found"
1310 }
1311
1312 require2(){
1313     name="$1"
1314     headers="$2"
1315     func="$3"
1316     shift 3
1317     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1318 }
1319
1320 require_cpp(){
1321     name="$1"
1322     headers="$2"
1323     classes="$3"
1324     shift 3
1325     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1326 }
1327
1328 use_pkg_config(){
1329     pkg="$1"
1330     check_pkg_config "$@" || return 1
1331     add_cflags    $(get_safe "${pkg}_cflags")
1332     add_extralibs $(get_safe "${pkg}_libs")
1333 }
1334
1335 require_pkg_config(){
1336     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1337 }
1338
1339 require_libfreetype(){
1340     log require_libfreetype "$@"
1341     pkg="freetype2"
1342     check_cmd $pkg_config --exists --print-errors $pkg \
1343       || die "ERROR: $pkg not found"
1344     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1345     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1346     {
1347         echo "#include <ft2build.h>"
1348         echo "#include FT_FREETYPE_H"
1349         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1350         echo "int main(void) { return 0; }"
1351     } | check_ld "cc" $pkg_cflags $pkg_libs \
1352       && set_safe "${pkg}_cflags" $pkg_cflags \
1353       && set_safe "${pkg}_libs"   $pkg_libs \
1354       || die "ERROR: $pkg not found"
1355     add_cflags    $(get_safe "${pkg}_cflags")
1356     add_extralibs $(get_safe "${pkg}_libs")
1357 }
1358
1359 hostcc_e(){
1360     eval printf '%s\\n' $HOSTCC_E
1361 }
1362
1363 hostcc_o(){
1364     eval printf '%s\\n' $HOSTCC_O
1365 }
1366
1367 check_host_cc(){
1368     log check_host_cc "$@"
1369     cat > $TMPC
1370     log_file $TMPC
1371     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1372 }
1373
1374 check_host_cpp(){
1375     log check_host_cpp "$@"
1376     cat > $TMPC
1377     log_file $TMPC
1378     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1379 }
1380
1381 check_host_cppflags(){
1382     log check_host_cppflags "$@"
1383     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1384 int x;
1385 EOF
1386 }
1387
1388 check_host_cflags(){
1389     log check_host_cflags "$@"
1390     set -- $($host_cflags_filter "$@")
1391     check_host_cc "$@" <<EOF && append host_cflags "$@"
1392 int x;
1393 EOF
1394 }
1395
1396 check_host_cpp_condition(){
1397     log check_host_cpp_condition "$@"
1398     header=$1
1399     condition=$2
1400     shift 2
1401     check_host_cpp "$@" <<EOF
1402 #include <$header>
1403 #if !($condition)
1404 #error "unsatisfied condition: $condition"
1405 #endif
1406 EOF
1407 }
1408
1409 cp_if_changed(){
1410     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1411     mkdir -p "$(dirname $2)"
1412     $cp_f "$1" "$2"
1413 }
1414
1415 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1416 # system-dependent things.
1417
1418 AVCODEC_COMPONENTS="
1419     bsfs
1420     decoders
1421     encoders
1422     hwaccels
1423     parsers
1424 "
1425
1426 AVDEVICE_COMPONENTS="
1427     indevs
1428     outdevs
1429 "
1430 AVFILTER_COMPONENTS="
1431     filters
1432 "
1433 AVFORMAT_COMPONENTS="
1434     demuxers
1435     muxers
1436     protocols
1437 "
1438
1439 AVRESAMPLE_COMPONENTS=""
1440 AVUTIL_COMPONENTS=""
1441
1442 COMPONENT_LIST="
1443     $AVCODEC_COMPONENTS
1444     $AVDEVICE_COMPONENTS
1445     $AVFILTER_COMPONENTS
1446     $AVFORMAT_COMPONENTS
1447     $AVRESAMPLE_COMPONENTS
1448     $AVUTIL_COMPONENTS
1449 "
1450
1451 EXAMPLE_LIST="
1452     avio_reading_example
1453     avio_dir_cmd_example
1454     decoding_encoding_example
1455     demuxing_decoding_example
1456     extract_mvs_example
1457     filter_audio_example
1458     filtering_audio_example
1459     filtering_video_example
1460     metadata_example
1461     muxing_example
1462     qsvdec_example
1463     remuxing_example
1464     resampling_audio_example
1465     scaling_video_example
1466     transcode_aac_example
1467     transcoding_example
1468 "
1469
1470 EXTERNAL_LIBRARY_LIST="
1471     audiotoolbox
1472     avisynth
1473     bzlib
1474     chromaprint
1475     crystalhd
1476     decklink
1477     frei0r
1478     gcrypt
1479     gmp
1480     gnutls
1481     iconv
1482     jni
1483     ladspa
1484     libass
1485     libbluray
1486     libbs2b
1487     libcaca
1488     libcdio
1489     libcelt
1490     libdc1394
1491     libebur128
1492     libfaac
1493     libfdk_aac
1494     libflite
1495     libfontconfig
1496     libfreetype
1497     libfribidi
1498     libgme
1499     libgsm
1500     libiec61883
1501     libilbc
1502     libkvazaar
1503     libmodplug
1504     libmp3lame
1505     libnut
1506     libnpp
1507     libopencore_amrnb
1508     libopencore_amrwb
1509     libopencv
1510     libopenh264
1511     libopenjpeg
1512     libopus
1513     libpulse
1514     librtmp
1515     librubberband
1516     libschroedinger
1517     libshine
1518     libsmbclient
1519     libsnappy
1520     libsoxr
1521     libspeex
1522     libssh
1523     libtesseract
1524     libtheora
1525     libtwolame
1526     libv4l2
1527     libvidstab
1528     libvo_amrwbenc
1529     libvorbis
1530     libvpx
1531     libwavpack
1532     libwebp
1533     libx264
1534     libx265
1535     libxavs
1536     libxcb
1537     libxcb_shm
1538     libxcb_shape
1539     libxcb_xfixes
1540     libxvid
1541     libzimg
1542     libzmq
1543     libzvbi
1544     lzma
1545     mediacodec
1546     netcdf
1547     openal
1548     opencl
1549     opengl
1550     openssl
1551     schannel
1552     sdl
1553     securetransport
1554     videotoolbox
1555     x11grab
1556     xlib
1557     zlib
1558 "
1559
1560 DOCUMENT_LIST="
1561     doc
1562     htmlpages
1563     manpages
1564     podpages
1565     txtpages
1566 "
1567
1568 FEATURE_LIST="
1569     ftrapv
1570     gray
1571     hardcoded_tables
1572     omx_rpi
1573     runtime_cpudetect
1574     safe_bitstream_reader
1575     shared
1576     small
1577     static
1578     swscale_alpha
1579 "
1580
1581 HW_CODECS_LIST="
1582     cuda
1583     cuvid
1584     libmfx
1585     mmal
1586     nvenc
1587     omx
1588 "
1589
1590 HWACCEL_LIST="
1591     d3d11va
1592     dxva2
1593     vaapi
1594     vda
1595     vdpau
1596     videotoolbox_hwaccel
1597     xvmc
1598 "
1599
1600 LIBRARY_LIST="
1601     avcodec
1602     avdevice
1603     avfilter
1604     avformat
1605     avresample
1606     avutil
1607     postproc
1608     swresample
1609     swscale
1610 "
1611
1612 LICENSE_LIST="
1613     gpl
1614     nonfree
1615     version3
1616 "
1617
1618 PROGRAM_LIST="
1619     ffplay
1620     ffprobe
1621     ffserver
1622     ffmpeg
1623 "
1624
1625 SUBSYSTEM_LIST="
1626     dct
1627     dwt
1628     error_resilience
1629     faan
1630     fast_unaligned
1631     fft
1632     lsp
1633     lzo
1634     mdct
1635     pixelutils
1636     network
1637     rdft
1638 "
1639
1640 CONFIG_LIST="
1641     $COMPONENT_LIST
1642     $DOCUMENT_LIST
1643     $EXAMPLE_LIST
1644     $EXTERNAL_LIBRARY_LIST
1645     $FEATURE_LIST
1646     $HW_CODECS_LIST
1647     $HWACCEL_LIST
1648     $LICENSE_LIST
1649     $LIBRARY_LIST
1650     $PROGRAM_LIST
1651     $SUBSYSTEM_LIST
1652     fontconfig
1653     incompatible_libav_abi
1654     memalign_hack
1655     memory_poisoning
1656     neon_clobber_test
1657     pic
1658     pod2man
1659     raise_major
1660     thumb
1661     valgrind_backtrace
1662     xmm_clobber_test
1663 "
1664
1665 THREADS_LIST="
1666     pthreads
1667     os2threads
1668     w32threads
1669 "
1670
1671 ATOMICS_LIST="
1672     atomics_gcc
1673     atomics_suncc
1674     atomics_win32
1675 "
1676
1677 ARCH_LIST="
1678     aarch64
1679     alpha
1680     arm
1681     avr32
1682     avr32_ap
1683     avr32_uc
1684     bfin
1685     ia64
1686     m68k
1687     mips
1688     mips64
1689     parisc
1690     ppc
1691     ppc64
1692     s390
1693     sh4
1694     sparc
1695     sparc64
1696     tilegx
1697     tilepro
1698     tomi
1699     x86
1700     x86_32
1701     x86_64
1702 "
1703
1704 ARCH_EXT_LIST_ARM="
1705     armv5te
1706     armv6
1707     armv6t2
1708     armv8
1709     neon
1710     vfp
1711     vfpv3
1712     setend
1713 "
1714
1715 ARCH_EXT_LIST_MIPS="
1716     mipsfpu
1717     mips32r2
1718     mips32r5
1719     mips64r2
1720     mips32r6
1721     mips64r6
1722     mipsdsp
1723     mipsdspr2
1724     msa
1725 "
1726
1727 ARCH_EXT_LIST_LOONGSON="
1728     loongson2
1729     loongson3
1730     mmi
1731 "
1732
1733 ARCH_EXT_LIST_X86_SIMD="
1734     aesni
1735     amd3dnow
1736     amd3dnowext
1737     avx
1738     avx2
1739     fma3
1740     fma4
1741     mmx
1742     mmxext
1743     sse
1744     sse2
1745     sse3
1746     sse4
1747     sse42
1748     ssse3
1749     xop
1750 "
1751
1752 ARCH_EXT_LIST_PPC="
1753     altivec
1754     dcbzl
1755     ldbrx
1756     power8
1757     ppc4xx
1758     vsx
1759 "
1760
1761 ARCH_EXT_LIST_X86="
1762     $ARCH_EXT_LIST_X86_SIMD
1763     cpunop
1764     i686
1765 "
1766
1767 ARCH_EXT_LIST="
1768     $ARCH_EXT_LIST_ARM
1769     $ARCH_EXT_LIST_PPC
1770     $ARCH_EXT_LIST_X86
1771     $ARCH_EXT_LIST_MIPS
1772     $ARCH_EXT_LIST_LOONGSON
1773 "
1774
1775 ARCH_FEATURES="
1776     aligned_stack
1777     fast_64bit
1778     fast_clz
1779     fast_cmov
1780     local_aligned_8
1781     local_aligned_16
1782     local_aligned_32
1783     simd_align_16
1784 "
1785
1786 BUILTIN_LIST="
1787     atomic_cas_ptr
1788     atomic_compare_exchange
1789     machine_rw_barrier
1790     MemoryBarrier
1791     mm_empty
1792     rdtsc
1793     sarestart
1794     sem_timedwait
1795     sync_val_compare_and_swap
1796 "
1797 HAVE_LIST_CMDLINE="
1798     inline_asm
1799     symver
1800     yasm
1801 "
1802
1803 HAVE_LIST_PUB="
1804     bigendian
1805     fast_unaligned
1806     incompatible_libav_abi
1807 "
1808
1809 HEADERS_LIST="
1810     alsa_asoundlib_h
1811     altivec_h
1812     arpa_inet_h
1813     asm_types_h
1814     cdio_paranoia_h
1815     cdio_paranoia_paranoia_h
1816     dispatch_dispatch_h
1817     dev_bktr_ioctl_bt848_h
1818     dev_bktr_ioctl_meteor_h
1819     dev_ic_bt8xx_h
1820     dev_video_bktr_ioctl_bt848_h
1821     dev_video_meteor_ioctl_meteor_h
1822     direct_h
1823     dirent_h
1824     dlfcn_h
1825     d3d11_h
1826     dxva_h
1827     ES2_gl_h
1828     gsm_h
1829     io_h
1830     mach_mach_time_h
1831     machine_ioctl_bt848_h
1832     machine_ioctl_meteor_h
1833     malloc_h
1834     opencv2_core_core_c_h
1835     openjpeg_2_1_openjpeg_h
1836     openjpeg_2_0_openjpeg_h
1837     openjpeg_1_5_openjpeg_h
1838     OpenGL_gl3_h
1839     poll_h
1840     sndio_h
1841     soundcard_h
1842     sys_mman_h
1843     sys_param_h
1844     sys_resource_h
1845     sys_select_h
1846     sys_soundcard_h
1847     sys_time_h
1848     sys_un_h
1849     sys_videoio_h
1850     termios_h
1851     udplite_h
1852     unistd_h
1853     valgrind_valgrind_h
1854     windows_h
1855     winsock2_h
1856 "
1857
1858 INTRINSICS_LIST="
1859     intrinsics_neon
1860 "
1861
1862 COMPLEX_FUNCS="
1863     cabs
1864     cexp
1865 "
1866
1867 MATH_FUNCS="
1868     atanf
1869     atan2f
1870     cbrt
1871     cbrtf
1872     copysign
1873     cosf
1874     erf
1875     exp2
1876     exp2f
1877     expf
1878     hypot
1879     isfinite
1880     isinf
1881     isnan
1882     ldexpf
1883     llrint
1884     llrintf
1885     log2
1886     log2f
1887     log10f
1888     lrint
1889     lrintf
1890     powf
1891     rint
1892     round
1893     roundf
1894     sinf
1895     trunc
1896     truncf
1897 "
1898
1899 SYSTEM_FUNCS="
1900     access
1901     aligned_malloc
1902     arc4random
1903     clock_gettime
1904     closesocket
1905     CommandLineToArgvW
1906     CoTaskMemFree
1907     CryptGenRandom
1908     dlopen
1909     fcntl
1910     flt_lim
1911     fork
1912     getaddrinfo
1913     gethrtime
1914     getopt
1915     GetProcessAffinityMask
1916     GetProcessMemoryInfo
1917     GetProcessTimes
1918     getrusage
1919     GetSystemTimeAsFileTime
1920     gettimeofday
1921     glob
1922     glXGetProcAddress
1923     gmtime_r
1924     inet_aton
1925     isatty
1926     jack_port_get_latency_range
1927     kbhit
1928     localtime_r
1929     lstat
1930     lzo1x_999_compress
1931     mach_absolute_time
1932     MapViewOfFile
1933     memalign
1934     mkstemp
1935     mmap
1936     mprotect
1937     nanosleep
1938     PeekNamedPipe
1939     posix_memalign
1940     pthread_cancel
1941     sched_getaffinity
1942     SetConsoleTextAttribute
1943     SetConsoleCtrlHandler
1944     setmode
1945     setrlimit
1946     Sleep
1947     strerror_r
1948     sysconf
1949     sysctl
1950     usleep
1951     UTGetOSTypeFromString
1952     VirtualAlloc
1953     wglGetProcAddress
1954 "
1955
1956 TOOLCHAIN_FEATURES="
1957     as_dn_directive
1958     as_func
1959     as_object_arch
1960     asm_mod_q
1961     attribute_may_alias
1962     attribute_packed
1963     ebp_available
1964     ebx_available
1965     gnu_as
1966     gnu_windres
1967     ibm_asm
1968     inline_asm_direct_symbol_refs
1969     inline_asm_labels
1970     inline_asm_nonlocal_labels
1971     pragma_deprecated
1972     rsync_contimeout
1973     symver_asm_label
1974     symver_gnu_asm
1975     vfp_args
1976     xform_asm
1977     xmm_clobbers
1978 "
1979
1980 TYPES_LIST="
1981     CONDITION_VARIABLE_Ptr
1982     socklen_t
1983     struct_addrinfo
1984     struct_group_source_req
1985     struct_ip_mreq_source
1986     struct_ipv6_mreq
1987     struct_msghdr_msg_flags
1988     struct_pollfd
1989     struct_rusage_ru_maxrss
1990     struct_sctp_event_subscribe
1991     struct_sockaddr_in6
1992     struct_sockaddr_sa_len
1993     struct_sockaddr_storage
1994     struct_stat_st_mtim_tv_nsec
1995     struct_v4l2_frmivalenum_discrete
1996 "
1997
1998 HAVE_LIST="
1999     $ARCH_EXT_LIST
2000     $(add_suffix _external $ARCH_EXT_LIST)
2001     $(add_suffix _inline   $ARCH_EXT_LIST)
2002     $ARCH_FEATURES
2003     $ATOMICS_LIST
2004     $BUILTIN_LIST
2005     $COMPLEX_FUNCS
2006     $HAVE_LIST_CMDLINE
2007     $HAVE_LIST_PUB
2008     $HEADERS_LIST
2009     $INTRINSICS_LIST
2010     $MATH_FUNCS
2011     $SYSTEM_FUNCS
2012     $THREADS_LIST
2013     $TOOLCHAIN_FEATURES
2014     $TYPES_LIST
2015     atomics_native
2016     dos_paths
2017     dxva2_lib
2018     dxva2api_cobj
2019     libc_msvcrt
2020     libdc1394_1
2021     libdc1394_2
2022     makeinfo
2023     makeinfo_html
2024     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2025     perl
2026     pod2man
2027     sdl
2028     section_data_rel_ro
2029     texi2html
2030     threads
2031     vaapi_drm
2032     vaapi_x11
2033     vdpau_x11
2034     winrt
2035     xlib
2036 "
2037
2038 # options emitted with CONFIG_ prefix but not available on the command line
2039 CONFIG_EXTRA="
2040     aandcttables
2041     ac3dsp
2042     audio_frame_queue
2043     audiodsp
2044     blockdsp
2045     bswapdsp
2046     cabac
2047     dirac_parse
2048     dvprofile
2049     exif
2050     faandct
2051     faanidct
2052     fdctdsp
2053     flacdsp
2054     fmtconvert
2055     frame_thread_encoder
2056     g722dsp
2057     golomb
2058     gplv3
2059     h263dsp
2060     h264chroma
2061     h264dsp
2062     h264pred
2063     h264qpel
2064     hpeldsp
2065     huffman
2066     huffyuvdsp
2067     huffyuvencdsp
2068     idctdsp
2069     iirfilter
2070     imdct15
2071     intrax8
2072     iso_media
2073     ividsp
2074     jpegtables
2075     lgplv3
2076     libx262
2077     llauddsp
2078     llviddsp
2079     lpc
2080     lzf
2081     me_cmp
2082     mpeg_er
2083     mpegaudio
2084     mpegaudiodsp
2085     mpegvideo
2086     mpegvideoenc
2087     mss34dsp
2088     pixblockdsp
2089     qpeldsp
2090     qsv
2091     qsvdec
2092     qsvenc
2093     rangecoder
2094     riffdec
2095     riffenc
2096     rtpdec
2097     rtpenc_chain
2098     rv34dsp
2099     sinewin
2100     snappy
2101     srtp
2102     startcode
2103     texturedsp
2104     texturedspenc
2105     tpeldsp
2106     vaapi_encode
2107     vc1dsp
2108     videodsp
2109     vp3dsp
2110     vp56dsp
2111     vp8dsp
2112     vt_bt2020
2113     wma_freqs
2114     wmv2dsp
2115 "
2116
2117 CMDLINE_SELECT="
2118     $ARCH_EXT_LIST
2119     $CONFIG_LIST
2120     $HAVE_LIST_CMDLINE
2121     $THREADS_LIST
2122     asm
2123     cross_compile
2124     debug
2125     extra_warnings
2126     logging
2127     lto
2128     optimizations
2129     rpath
2130     stripping
2131 "
2132
2133 PATHS_LIST="
2134     bindir
2135     datadir
2136     docdir
2137     incdir
2138     libdir
2139     mandir
2140     pkgconfigdir
2141     prefix
2142     shlibdir
2143     install_name_dir
2144 "
2145
2146 CMDLINE_SET="
2147     $PATHS_LIST
2148     ar
2149     arch
2150     as
2151     assert_level
2152     build_suffix
2153     cc
2154     objcc
2155     cpu
2156     cross_prefix
2157     custom_allocator
2158     cxx
2159     dep_cc
2160     doxygen
2161     env
2162     extra_version
2163     gas
2164     host_cc
2165     host_cflags
2166     host_ld
2167     host_ldflags
2168     host_libs
2169     host_os
2170     install
2171     ld
2172     ln_s
2173     logfile
2174     malloc_prefix
2175     nm
2176     optflags
2177     pkg_config
2178     pkg_config_flags
2179     progs_suffix
2180     random_seed
2181     ranlib
2182     samples
2183     strip
2184     sws_max_filter_size
2185     sysinclude
2186     sysroot
2187     target_exec
2188     target_os
2189     target_path
2190     target_samples
2191     tempprefix
2192     toolchain
2193     valgrind
2194     yasmexe
2195 "
2196
2197 CMDLINE_APPEND="
2198     extra_cflags
2199     extra_cxxflags
2200     extra_objcflags
2201     host_cppflags
2202 "
2203
2204 # code dependency declarations
2205
2206 # architecture extensions
2207
2208 armv5te_deps="arm"
2209 armv6_deps="arm"
2210 armv6t2_deps="arm"
2211 armv8_deps="aarch64"
2212 neon_deps_any="aarch64 arm"
2213 intrinsics_neon_deps="neon"
2214 vfp_deps_any="aarch64 arm"
2215 vfpv3_deps="vfp"
2216 setend_deps="arm"
2217
2218 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2219
2220 mipsfpu_deps="mips"
2221 mipsdsp_deps="mips"
2222 mipsdspr2_deps="mips"
2223 mips32r2_deps="mips"
2224 mips32r5_deps="mips"
2225 mips32r6_deps="mips"
2226 mips64r2_deps="mips"
2227 mips64r6_deps="mips"
2228 msa_deps="mipsfpu"
2229 mmi_deps="mips"
2230
2231 altivec_deps="ppc"
2232 dcbzl_deps="ppc"
2233 ldbrx_deps="ppc"
2234 ppc4xx_deps="ppc"
2235 vsx_deps="altivec"
2236 power8_deps="vsx"
2237
2238 cpunop_deps="i686"
2239 x86_64_select="i686"
2240 x86_64_suggest="fast_cmov"
2241
2242 amd3dnow_deps="mmx"
2243 amd3dnowext_deps="amd3dnow"
2244 i686_deps="x86"
2245 mmx_deps="x86"
2246 mmxext_deps="mmx"
2247 sse_deps="mmxext"
2248 sse2_deps="sse"
2249 sse3_deps="sse2"
2250 ssse3_deps="sse3"
2251 sse4_deps="ssse3"
2252 sse42_deps="sse4"
2253 aesni_deps="sse42"
2254 avx_deps="sse42"
2255 xop_deps="avx"
2256 fma3_deps="avx"
2257 fma4_deps="avx"
2258 avx2_deps="avx"
2259
2260 mmx_external_deps="yasm"
2261 mmx_inline_deps="inline_asm"
2262 mmx_suggest="mmx_external mmx_inline"
2263
2264 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2265     eval dep=\$${ext}_deps
2266     eval ${ext}_external_deps='"${dep}_external"'
2267     eval ${ext}_inline_deps='"${dep}_inline"'
2268     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2269 done
2270
2271 aligned_stack_if_any="aarch64 ppc x86"
2272 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2273 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2274 fast_unaligned_if_any="aarch64 ppc x86"
2275 simd_align_16_if_any="altivec neon sse"
2276
2277 # system capabilities
2278 symver_if_any="symver_asm_label symver_gnu_asm"
2279 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2280
2281 # threading support
2282 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2283 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2284 atomics_win32_if="MemoryBarrier"
2285 atomics_native_if_any="$ATOMICS_LIST"
2286 w32threads_deps="atomics_native"
2287 threads_if_any="$THREADS_LIST"
2288
2289 # subsystems
2290 dct_select="rdft"
2291 dirac_parse_select="golomb"
2292 error_resilience_select="me_cmp"
2293 faandct_deps="faan fdctdsp"
2294 faanidct_deps="faan idctdsp"
2295 h264dsp_select="startcode"
2296 frame_thread_encoder_deps="encoders threads"
2297 intrax8_select="blockdsp idctdsp"
2298 mdct_select="fft"
2299 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2300 mpeg_er_select="error_resilience"
2301 mpegaudio_select="mpegaudiodsp"
2302 mpegaudiodsp_select="dct"
2303 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2304 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2305 vc1dsp_select="h264chroma qpeldsp startcode"
2306 rdft_select="fft"
2307
2308 # decoders / encoders
2309 aac_decoder_select="imdct15 mdct sinewin"
2310 aac_fixed_decoder_select="mdct sinewin"
2311 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2312 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2313 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2314 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2315 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2316 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2317 adpcm_g722_decoder_select="g722dsp"
2318 adpcm_g722_encoder_select="g722dsp"
2319 aic_decoder_select="golomb idctdsp"
2320 alac_encoder_select="lpc"
2321 als_decoder_select="bswapdsp"
2322 amrnb_decoder_select="lsp"
2323 amrwb_decoder_select="lsp"
2324 amv_decoder_select="sp5x_decoder exif"
2325 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2326 ape_decoder_select="bswapdsp llauddsp"
2327 apng_decoder_select="zlib"
2328 apng_encoder_select="huffyuvencdsp zlib"
2329 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2330 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2331 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2332 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2333 atrac1_decoder_select="mdct sinewin"
2334 atrac3_decoder_select="mdct"
2335 atrac3p_decoder_select="mdct sinewin"
2336 avrn_decoder_select="exif jpegtables"
2337 bink_decoder_select="blockdsp hpeldsp"
2338 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2339 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2340 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2341 cllc_decoder_select="bswapdsp"
2342 comfortnoise_encoder_select="lpc"
2343 cook_decoder_select="audiodsp mdct sinewin"
2344 cscd_decoder_select="lzo"
2345 cscd_decoder_suggest="zlib"
2346 dca_decoder_select="mdct"
2347 dds_decoder_select="texturedsp"
2348 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2349 dnxhd_decoder_select="blockdsp idctdsp"
2350 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2351 dvvideo_decoder_select="dvprofile idctdsp"
2352 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2353 dxa_decoder_select="zlib"
2354 dxv_decoder_select="lzf texturedsp"
2355 eac3_decoder_select="ac3_decoder"
2356 eac3_encoder_select="ac3_encoder"
2357 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2358 eatgq_decoder_select="aandcttables"
2359 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2360 exr_decoder_select="zlib"
2361 ffv1_decoder_select="golomb rangecoder"
2362 ffv1_encoder_select="rangecoder"
2363 ffvhuff_decoder_select="huffyuv_decoder"
2364 ffvhuff_encoder_select="huffyuv_encoder"
2365 fic_decoder_select="golomb"
2366 flac_decoder_select="flacdsp golomb"
2367 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2368 flashsv2_decoder_select="zlib"
2369 flashsv2_encoder_select="zlib"
2370 flashsv_decoder_select="zlib"
2371 flashsv_encoder_select="zlib"
2372 flv_decoder_select="h263_decoder"
2373 flv_encoder_select="h263_encoder"
2374 fourxm_decoder_select="blockdsp bswapdsp"
2375 fraps_decoder_select="bswapdsp huffman"
2376 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2377 g729_decoder_select="audiodsp"
2378 h261_decoder_select="mpegvideo"
2379 h261_encoder_select="aandcttables mpegvideoenc"
2380 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2381 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2382 h263i_decoder_select="h263_decoder"
2383 h263p_decoder_select="h263_decoder"
2384 h263p_encoder_select="h263_encoder"
2385 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2386 h264_decoder_suggest="error_resilience"
2387 hap_decoder_select="snappy texturedsp"
2388 hap_encoder_deps="libsnappy"
2389 hap_encoder_select="texturedspenc"
2390 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2391 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2392 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2393 iac_decoder_select="imc_decoder"
2394 imc_decoder_select="bswapdsp fft mdct sinewin"
2395 indeo3_decoder_select="hpeldsp"
2396 indeo4_decoder_select="ividsp"
2397 indeo5_decoder_select="ividsp"
2398 interplay_video_decoder_select="hpeldsp"
2399 jpegls_decoder_select="golomb mjpeg_decoder"
2400 jpegls_encoder_select="golomb"
2401 jv_decoder_select="blockdsp"
2402 lagarith_decoder_select="huffyuvdsp"
2403 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2404 loco_decoder_select="golomb"
2405 magicyuv_decoder_select="huffyuvdsp"
2406 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2407 metasound_decoder_select="lsp mdct sinewin"
2408 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2409 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2410 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2411 mjpegb_decoder_select="mjpeg_decoder"
2412 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2413 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2414 mlp_decoder_select="mlp_parser"
2415 motionpixels_decoder_select="bswapdsp"
2416 mp1_decoder_select="mpegaudio"
2417 mp1float_decoder_select="mpegaudio"
2418 mp2_decoder_select="mpegaudio"
2419 mp2float_decoder_select="mpegaudio"
2420 mp3_decoder_select="mpegaudio"
2421 mp3adu_decoder_select="mpegaudio"
2422 mp3adufloat_decoder_select="mpegaudio"
2423 mp3float_decoder_select="mpegaudio"
2424 mp3on4_decoder_select="mpegaudio"
2425 mp3on4float_decoder_select="mpegaudio"
2426 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2427 mpc8_decoder_select="mpegaudiodsp"
2428 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2429 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2430 mpegvideo_decoder_select="mpegvideo"
2431 mpeg1video_decoder_select="mpegvideo"
2432 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2433 mpeg2video_decoder_select="mpegvideo"
2434 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2435 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2436 mpeg4_encoder_select="h263_encoder"
2437 msa1_decoder_select="mss34dsp"
2438 msmpeg4v1_decoder_select="h263_decoder"
2439 msmpeg4v2_decoder_select="h263_decoder"
2440 msmpeg4v2_encoder_select="h263_encoder"
2441 msmpeg4v3_decoder_select="h263_decoder"
2442 msmpeg4v3_encoder_select="h263_encoder"
2443 mss2_decoder_select="vc1_decoder mpegvideo"
2444 mts2_decoder_select="mss34dsp"
2445 mxpeg_decoder_select="mjpeg_decoder"
2446 nellymoser_decoder_select="mdct sinewin"
2447 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2448 nuv_decoder_select="idctdsp lzo"
2449 on2avc_decoder_select="mdct"
2450 opus_decoder_deps="swresample"
2451 opus_decoder_select="imdct15"
2452 png_decoder_select="zlib"
2453 png_encoder_select="huffyuvencdsp zlib"
2454 prores_decoder_select="blockdsp idctdsp"
2455 prores_encoder_select="fdctdsp"
2456 qcelp_decoder_select="lsp"
2457 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2458 ra_144_decoder_select="audiodsp"
2459 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2460 ralf_decoder_select="golomb"
2461 rawvideo_decoder_select="bswapdsp"
2462 rscc_decoder_select="zlib"
2463 rtjpeg_decoder_select="me_cmp"
2464 rv10_decoder_select="h263_decoder"
2465 rv10_encoder_select="h263_encoder"
2466 rv20_decoder_select="h263_decoder"
2467 rv20_encoder_select="h263_encoder"
2468 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2469 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2470 screenpresso_decoder_select="zlib"
2471 shorten_decoder_select="golomb"
2472 sipr_decoder_select="lsp"
2473 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2474 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2475 sonic_decoder_select="golomb rangecoder"
2476 sonic_encoder_select="golomb rangecoder"
2477 sonic_ls_encoder_select="golomb rangecoder"
2478 sp5x_decoder_select="mjpeg_decoder"
2479 svq1_decoder_select="hpeldsp"
2480 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2481 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2482 svq3_decoder_suggest="zlib"
2483 tak_decoder_select="audiodsp"
2484 tdsc_decoder_select="zlib mjpeg_decoder"
2485 theora_decoder_select="vp3_decoder"
2486 thp_decoder_select="mjpeg_decoder"
2487 tiff_decoder_suggest="zlib lzma"
2488 tiff_encoder_suggest="zlib"
2489 truehd_decoder_select="mlp_parser"
2490 truemotion2_decoder_select="bswapdsp"
2491 truespeech_decoder_select="bswapdsp"
2492 tscc_decoder_select="zlib"
2493 twinvq_decoder_select="mdct lsp sinewin"
2494 txd_decoder_select="texturedsp"
2495 utvideo_decoder_select="bswapdsp"
2496 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2497 vble_decoder_select="huffyuvdsp"
2498 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2499 vc1_qsv_decoder_deps="libmfx"
2500 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2501 vc1image_decoder_select="vc1_decoder"
2502 vorbis_decoder_select="mdct"
2503 vorbis_encoder_select="mdct"
2504 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2505 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2506 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2507 vp6a_decoder_select="vp6_decoder"
2508 vp6f_decoder_select="vp6_decoder"
2509 vp7_decoder_select="h264pred videodsp vp8dsp"
2510 vp8_decoder_select="h264pred videodsp vp8dsp"
2511 vp9_decoder_select="videodsp vp9_parser"
2512 webp_decoder_select="vp8_decoder exif"
2513 wmalossless_decoder_select="llauddsp"
2514 wmapro_decoder_select="mdct sinewin wma_freqs"
2515 wmav1_decoder_select="mdct sinewin wma_freqs"
2516 wmav1_encoder_select="mdct sinewin wma_freqs"
2517 wmav2_decoder_select="mdct sinewin wma_freqs"
2518 wmav2_encoder_select="mdct sinewin wma_freqs"
2519 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2520 wmv1_decoder_select="h263_decoder"
2521 wmv1_encoder_select="h263_encoder"
2522 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2523 wmv2_encoder_select="h263_encoder wmv2dsp"
2524 wmv3_decoder_select="vc1_decoder"
2525 wmv3image_decoder_select="wmv3_decoder"
2526 xma1_decoder_select="wmapro_decoder"
2527 xma2_decoder_select="wmapro_decoder"
2528 zerocodec_decoder_select="zlib"
2529 zlib_decoder_select="zlib"
2530 zlib_encoder_select="zlib"
2531 zmbv_decoder_select="zlib"
2532 zmbv_encoder_select="zlib"
2533
2534 # platform codecs
2535 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2536 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2537
2538 # hardware accelerators
2539 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2540 cuvid_deps="cuda"
2541 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2542 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2543 vaapi_deps="va_va_h"
2544 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2545 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2546 vda_deps="vda_framework pthreads"
2547 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2548 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2549 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2550 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2551 xvmc_deps="X11_extensions_XvMClib_h"
2552
2553 h263_vaapi_hwaccel_deps="vaapi"
2554 h263_vaapi_hwaccel_select="h263_decoder"
2555 h263_videotoolbox_hwaccel_deps="videotoolbox"
2556 h263_videotoolbox_hwaccel_select="h263_decoder"
2557 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2558 h264_cuvid_hwaccel_deps="cuda cuvid CUVIDH264PICPARAMS"
2559 h264_d3d11va_hwaccel_deps="d3d11va"
2560 h264_d3d11va_hwaccel_select="h264_decoder"
2561 h264_dxva2_hwaccel_deps="dxva2"
2562 h264_dxva2_hwaccel_select="h264_decoder"
2563 h264_mediacodec_decoder_deps="mediacodec"
2564 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2565 h264_mmal_decoder_deps="mmal"
2566 h264_mmal_decoder_select="mmal"
2567 h264_mmal_hwaccel_deps="mmal"
2568 h264_omx_encoder_deps="omx"
2569 h264_qsv_hwaccel_deps="libmfx"
2570 h264_vaapi_hwaccel_deps="vaapi"
2571 h264_vaapi_hwaccel_select="h264_decoder"
2572 h264_vda_decoder_deps="vda"
2573 h264_vda_decoder_select="h264_decoder"
2574 h264_vda_hwaccel_deps="vda"
2575 h264_vda_hwaccel_select="h264_decoder"
2576 h264_vda_old_hwaccel_deps="vda"
2577 h264_vda_old_hwaccel_select="h264_decoder"
2578 h264_vdpau_decoder_deps="vdpau"
2579 h264_vdpau_decoder_select="h264_decoder"
2580 h264_vdpau_hwaccel_deps="vdpau"
2581 h264_vdpau_hwaccel_select="h264_decoder"
2582 h264_videotoolbox_hwaccel_deps="videotoolbox"
2583 h264_videotoolbox_hwaccel_select="h264_decoder"
2584 hevc_cuvid_hwaccel_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2585 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2586 hevc_d3d11va_hwaccel_select="hevc_decoder"
2587 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2588 hevc_dxva2_hwaccel_select="hevc_decoder"
2589 hevc_qsv_hwaccel_deps="libmfx"
2590 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2591 hevc_vaapi_hwaccel_select="hevc_decoder"
2592 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2593 hevc_vdpau_hwaccel_select="hevc_decoder"
2594 mpeg_vdpau_decoder_deps="vdpau"
2595 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2596 mpeg_xvmc_hwaccel_deps="xvmc"
2597 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2598 mpeg1_vdpau_decoder_deps="vdpau"
2599 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2600 mpeg1_vdpau_hwaccel_deps="vdpau"
2601 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2602 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2603 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2604 mpeg1_xvmc_hwaccel_deps="xvmc"
2605 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2606 mpeg2_crystalhd_decoder_select="crystalhd"
2607 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2608 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2609 mpeg2_dxva2_hwaccel_deps="dxva2"
2610 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2611 mpeg2_mmal_decoder_deps="mmal"
2612 mpeg2_mmal_decoder_select="mmal"
2613 mpeg2_mmal_hwaccel_deps="mmal"
2614 mpeg2_qsv_hwaccel_deps="libmfx"
2615 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2616 mpeg2_vaapi_hwaccel_deps="vaapi"
2617 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2618 mpeg2_vdpau_hwaccel_deps="vdpau"
2619 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2620 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2621 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2622 mpeg2_xvmc_hwaccel_deps="xvmc"
2623 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2624 mpeg4_crystalhd_decoder_select="crystalhd"
2625 mpeg4_mmal_decoder_deps="mmal"
2626 mpeg4_mmal_decoder_select="mmal"
2627 mpeg4_mmal_hwaccel_deps="mmal"
2628 mpeg4_omx_encoder_deps="omx"
2629 mpeg4_vaapi_hwaccel_deps="vaapi"
2630 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2631 mpeg4_vdpau_decoder_deps="vdpau"
2632 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2633 mpeg4_vdpau_hwaccel_deps="vdpau"
2634 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2635 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2636 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2637 msmpeg4_crystalhd_decoder_select="crystalhd"
2638 vc1_crystalhd_decoder_select="crystalhd"
2639 vc1_cuvid_hwaccel_deps="cuda cuvid CUVIDVC1PICPARAMS"
2640 vc1_d3d11va_hwaccel_deps="d3d11va"
2641 vc1_d3d11va_hwaccel_select="vc1_decoder"
2642 vc1_dxva2_hwaccel_deps="dxva2"
2643 vc1_dxva2_hwaccel_select="vc1_decoder"
2644 vc1_mmal_decoder_deps="mmal"
2645 vc1_mmal_decoder_select="mmal"
2646 vc1_mmal_hwaccel_deps="mmal"
2647 vc1_qsv_hwaccel_deps="libmfx"
2648 vc1_qsv_hwaccel_select="qsvdec_vc1"
2649 vc1_vaapi_hwaccel_deps="vaapi"
2650 vc1_vaapi_hwaccel_select="vc1_decoder"
2651 vc1_vdpau_decoder_deps="vdpau"
2652 vc1_vdpau_decoder_select="vc1_decoder"
2653 vc1_vdpau_hwaccel_deps="vdpau"
2654 vc1_vdpau_hwaccel_select="vc1_decoder"
2655 vp8_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2656 vp9_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2657 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2658 vp9_d3d11va_hwaccel_select="vp9_decoder"
2659 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2660 vp9_dxva2_hwaccel_select="vp9_decoder"
2661 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2662 vp9_vaapi_hwaccel_select="vp9_decoder"
2663 wmv3_crystalhd_decoder_select="crystalhd"
2664 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2665 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2666 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2667 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2668 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2669
2670 # hardware-accelerated codecs
2671 omx_deps="dlopen pthreads"
2672 omx_extralibs='$ldl'
2673 qsvdec_select="qsv"
2674 qsvenc_select="qsv"
2675 vaapi_encode_deps="vaapi"
2676
2677 hwupload_cuda_filter_deps="cuda"
2678 scale_npp_filter_deps="cuda libnpp"
2679
2680 nvenc_encoder_deps="nvenc"
2681 h264_cuvid_decoder_deps="cuda cuvid CUVIDH264PICPARAMS"
2682 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2683 h264_qsv_decoder_deps="libmfx"
2684 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2685 h264_qsv_encoder_deps="libmfx"
2686 h264_qsv_encoder_select="qsvenc"
2687 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2688 h264_vaapi_encoder_select="vaapi_encode golomb"
2689
2690 hevc_cuvid_decoder_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2691 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2692 hevc_qsv_decoder_deps="libmfx"
2693 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2694 hevc_qsv_encoder_deps="libmfx"
2695 hevc_qsv_encoder_select="qsvenc"
2696 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2697 hevc_vaapi_encoder_select="vaapi_encode golomb"
2698 mpeg2_qsv_decoder_deps="libmfx"
2699 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2700 mpeg2_qsv_encoder_deps="libmfx"
2701 mpeg2_qsv_encoder_select="qsvenc"
2702 nvenc_h264_encoder_deps="nvenc"
2703 nvenc_hevc_encoder_deps="nvenc"
2704
2705 vc1_cuvid_decoder_deps="cuda cuvid CUVIDVC1PICPARAMS"
2706 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2707 vp8_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2708 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2709 vp9_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2710 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2711
2712 # parsers
2713 h264_parser_select="golomb h264dsp"
2714 hevc_parser_select="golomb"
2715 mpegvideo_parser_select="mpegvideo"
2716 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2717 vc1_parser_select="vc1dsp"
2718
2719 # bitstream_filters
2720 mjpeg2jpeg_bsf_select="jpegtables"
2721
2722 # external libraries
2723 aac_at_decoder_deps="audiotoolbox"
2724 ac3_at_decoder_deps="audiotoolbox"
2725 ac3_at_decoder_select="ac3_parser"
2726 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2727 alac_at_decoder_deps="audiotoolbox"
2728 amr_nb_at_decoder_deps="audiotoolbox"
2729 eac3_at_decoder_deps="audiotoolbox"
2730 eac3_at_decoder_select="ac3_parser"
2731 gsm_ms_at_decoder_deps="audiotoolbox"
2732 ilbc_at_decoder_deps="audiotoolbox"
2733 mp1_at_decoder_deps="audiotoolbox"
2734 mp2_at_decoder_deps="audiotoolbox"
2735 mp3_at_decoder_deps="audiotoolbox"
2736 pcm_alaw_at_decoder_deps="audiotoolbox"
2737 pcm_mulaw_at_decoder_deps="audiotoolbox"
2738 qdmc_at_decoder_deps="audiotoolbox"
2739 qdm2_at_decoder_deps="audiotoolbox"
2740 aac_at_encoder_deps="audiotoolbox"
2741 aac_at_encoder_select="audio_frame_queue"
2742 alac_at_encoder_deps="audiotoolbox"
2743 alac_at_encoder_select="audio_frame_queue"
2744 ilbc_at_encoder_deps="audiotoolbox"
2745 ilbc_at_encoder_select="audio_frame_queue"
2746 pcm_alaw_at_encoder_deps="audiotoolbox"
2747 pcm_alaw_at_encoder_select="audio_frame_queue"
2748 pcm_mulaw_at_encoder_deps="audiotoolbox"
2749 pcm_mulaw_at_encoder_select="audio_frame_queue"
2750 chromaprint_muxer_deps="chromaprint"
2751 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2752 libcelt_decoder_deps="libcelt"
2753 libfaac_encoder_deps="libfaac"
2754 libfaac_encoder_select="audio_frame_queue"
2755 libfdk_aac_decoder_deps="libfdk_aac"
2756 libfdk_aac_encoder_deps="libfdk_aac"
2757 libfdk_aac_encoder_select="audio_frame_queue"
2758 libgme_demuxer_deps="libgme"
2759 libgsm_decoder_deps="libgsm"
2760 libgsm_encoder_deps="libgsm"
2761 libgsm_ms_decoder_deps="libgsm"
2762 libgsm_ms_encoder_deps="libgsm"
2763 libilbc_decoder_deps="libilbc"
2764 libilbc_encoder_deps="libilbc"
2765 libkvazaar_encoder_deps="libkvazaar"
2766 libmodplug_demuxer_deps="libmodplug"
2767 libmp3lame_encoder_deps="libmp3lame"
2768 libmp3lame_encoder_select="audio_frame_queue"
2769 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2770 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2771 libopencore_amrnb_encoder_select="audio_frame_queue"
2772 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2773 libopenh264_encoder_deps="libopenh264"
2774 libopenjpeg_decoder_deps="libopenjpeg"
2775 libopenjpeg_encoder_deps="libopenjpeg"
2776 libopus_decoder_deps="libopus"
2777 libopus_encoder_deps="libopus"
2778 libopus_encoder_select="audio_frame_queue"
2779 libschroedinger_decoder_deps="libschroedinger"
2780 libschroedinger_encoder_deps="libschroedinger"
2781 libshine_encoder_deps="libshine"
2782 libshine_encoder_select="audio_frame_queue"
2783 libspeex_decoder_deps="libspeex"
2784 libspeex_encoder_deps="libspeex"
2785 libspeex_encoder_select="audio_frame_queue"
2786 libtheora_encoder_deps="libtheora"
2787 libtwolame_encoder_deps="libtwolame"
2788 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2789 libvorbis_decoder_deps="libvorbis"
2790 libvorbis_encoder_deps="libvorbis"
2791 libvorbis_encoder_select="audio_frame_queue"
2792 libvpx_vp8_decoder_deps="libvpx"
2793 libvpx_vp8_encoder_deps="libvpx"
2794 libvpx_vp9_decoder_deps="libvpx"
2795 libvpx_vp9_encoder_deps="libvpx"
2796 libwavpack_encoder_deps="libwavpack"
2797 libwebp_encoder_deps="libwebp"
2798 libwebp_anim_encoder_deps="libwebp"
2799 libx262_encoder_deps="libx262"
2800 libx264_encoder_deps="libx264"
2801 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2802 libx264rgb_encoder_select="libx264_encoder"
2803 libx265_encoder_deps="libx265"
2804 libxavs_encoder_deps="libxavs"
2805 libxvid_encoder_deps="libxvid"
2806 libzvbi_teletext_decoder_deps="libzvbi"
2807 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2808 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2809 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2810 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2811 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2812
2813 # demuxers / muxers
2814 ac3_demuxer_select="ac3_parser"
2815 asf_demuxer_select="riffdec"
2816 asf_o_demuxer_select="riffdec"
2817 asf_muxer_select="riffenc"
2818 asf_stream_muxer_select="asf_muxer"
2819 avi_demuxer_select="iso_media riffdec exif"
2820 avi_muxer_select="riffenc"
2821 avisynth_demuxer_deps="avisynth"
2822 avisynth_demuxer_select="riffdec"
2823 caf_demuxer_select="iso_media riffdec"
2824 dash_muxer_select="mp4_muxer"
2825 dirac_demuxer_select="dirac_parser"
2826 dts_demuxer_select="dca_parser"
2827 dtshd_demuxer_select="dca_parser"
2828 dv_demuxer_select="dvprofile"
2829 dv_muxer_select="dvprofile"
2830 dxa_demuxer_select="riffdec"
2831 eac3_demuxer_select="ac3_parser"
2832 f4v_muxer_select="mov_muxer"
2833 flac_demuxer_select="flac_parser"
2834 hds_muxer_select="flv_muxer"
2835 hls_muxer_select="mpegts_muxer"
2836 image2_alias_pix_demuxer_select="image2_demuxer"
2837 image2_brender_pix_demuxer_select="image2_demuxer"
2838 ipod_muxer_select="mov_muxer"
2839 ismv_muxer_select="mov_muxer"
2840 libnut_demuxer_deps="libnut"
2841 libnut_muxer_deps="libnut"
2842 matroska_audio_muxer_select="matroska_muxer"
2843 matroska_demuxer_select="iso_media riffdec"
2844 matroska_demuxer_suggest="bzlib lzo zlib"
2845 matroska_muxer_select="iso_media riffenc"
2846 mmf_muxer_select="riffenc"
2847 mov_demuxer_select="iso_media riffdec"
2848 mov_demuxer_suggest="zlib"
2849 mov_muxer_select="iso_media riffenc rtpenc_chain"
2850 mp3_demuxer_select="mpegaudio_parser"
2851 mp4_muxer_select="mov_muxer"
2852 mpegts_demuxer_select="iso_media"
2853 mpegts_muxer_select="adts_muxer latm_muxer"
2854 mpegtsraw_demuxer_select="mpegts_demuxer"
2855 mxf_d10_muxer_select="mxf_muxer"
2856 mxf_opatom_muxer_select="mxf_muxer"
2857 nut_muxer_select="riffenc"
2858 nuv_demuxer_select="riffdec"
2859 oga_muxer_select="ogg_muxer"
2860 ogg_demuxer_select="dirac_parse"
2861 opus_muxer_select="ogg_muxer"
2862 psp_muxer_select="mov_muxer"
2863 rtp_demuxer_select="sdp_demuxer"
2864 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2865 rtsp_demuxer_select="http_protocol rtpdec"
2866 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2867 sap_demuxer_select="sdp_demuxer"
2868 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2869 sdp_demuxer_select="rtpdec"
2870 smoothstreaming_muxer_select="ismv_muxer"
2871 spdif_muxer_select="aac_parser"
2872 spx_muxer_select="ogg_muxer"
2873 swf_demuxer_suggest="zlib"
2874 tak_demuxer_select="tak_parser"
2875 tg2_muxer_select="mov_muxer"
2876 tgp_muxer_select="mov_muxer"
2877 vobsub_demuxer_select="mpegps_demuxer"
2878 w64_demuxer_select="wav_demuxer"
2879 w64_muxer_select="wav_muxer"
2880 wav_demuxer_select="riffdec"
2881 wav_muxer_select="riffenc"
2882 webm_muxer_select="iso_media riffenc"
2883 webm_dash_manifest_demuxer_select="matroska_demuxer"
2884 wtv_demuxer_select="mpegts_demuxer riffdec"
2885 wtv_muxer_select="mpegts_muxer riffenc"
2886 xmv_demuxer_select="riffdec"
2887 xwma_demuxer_select="riffdec"
2888
2889 # indevs / outdevs
2890 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2891 alsa_outdev_deps="alsa_asoundlib_h"
2892 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2893 avfoundation_indev_select="avfoundation"
2894 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2895 caca_outdev_deps="libcaca"
2896 decklink_indev_deps="decklink pthreads"
2897 decklink_indev_extralibs="-lstdc++"
2898 decklink_outdev_deps="decklink pthreads"
2899 decklink_outdev_extralibs="-lstdc++"
2900 dshow_indev_deps="IBaseFilter"
2901 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2902 dv1394_indev_deps="dv1394"
2903 dv1394_indev_select="dv_demuxer"
2904 fbdev_indev_deps="linux_fb_h"
2905 fbdev_outdev_deps="linux_fb_h"
2906 gdigrab_indev_deps="CreateDIBSection"
2907 gdigrab_indev_extralibs="-lgdi32"
2908 gdigrab_indev_select="bmp_decoder"
2909 iec61883_indev_deps="libiec61883"
2910 jack_indev_deps="jack_jack_h"
2911 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2912 lavfi_indev_deps="avfilter"
2913 libcdio_indev_deps="libcdio"
2914 libdc1394_indev_deps="libdc1394"
2915 libv4l2_indev_deps="libv4l2"
2916 openal_indev_deps="openal"
2917 opengl_outdev_deps="opengl"
2918 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2919 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2920 pulse_indev_deps="libpulse"
2921 pulse_outdev_deps="libpulse"
2922 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2923 qtkit_indev_select="qtkit"
2924 sdl_outdev_deps="sdl"
2925 sndio_indev_deps="sndio_h"
2926 sndio_outdev_deps="sndio_h"
2927 v4l_indev_deps="linux_videodev_h"
2928 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2929 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2930 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2931 vfwcap_indev_extralibs="-lavicap32"
2932 x11grab_indev_deps="x11grab"
2933 x11grab_xcb_indev_deps="libxcb"
2934 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2935 xv_outdev_extralibs="-lXv -lX11 -lXext"
2936
2937 # protocols
2938 async_protocol_deps="threads"
2939 bluray_protocol_deps="libbluray"
2940 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2941 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2942 ffrtmpcrypt_protocol_select="tcp_protocol"
2943 ffrtmphttp_protocol_deps="!librtmp_protocol"
2944 ffrtmphttp_protocol_select="http_protocol"
2945 ftp_protocol_select="tcp_protocol"
2946 gopher_protocol_select="network"
2947 http_protocol_select="tcp_protocol"
2948 httpproxy_protocol_select="tcp_protocol"
2949 https_protocol_select="tls_protocol"
2950 icecast_protocol_select="http_protocol"
2951 librtmp_protocol_deps="librtmp"
2952 librtmpe_protocol_deps="librtmp"
2953 librtmps_protocol_deps="librtmp"
2954 librtmpt_protocol_deps="librtmp"
2955 librtmpte_protocol_deps="librtmp"
2956 libsmbclient_protocol_deps="libsmbclient gplv3"
2957 libssh_protocol_deps="libssh"
2958 mmsh_protocol_select="http_protocol"
2959 mmst_protocol_select="network"
2960 rtmp_protocol_deps="!librtmp_protocol"
2961 rtmp_protocol_select="tcp_protocol"
2962 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2963 rtmps_protocol_deps="!librtmp_protocol"
2964 rtmps_protocol_select="tls_protocol"
2965 rtmpt_protocol_select="ffrtmphttp_protocol"
2966 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2967 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2968 rtp_protocol_select="udp_protocol"
2969 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2970 sctp_protocol_select="network"
2971 srtp_protocol_select="rtp_protocol srtp"
2972 tcp_protocol_select="network"
2973 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2974 tls_gnutls_protocol_select="tcp_protocol"
2975 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2976 tls_openssl_protocol_select="tcp_protocol"
2977 tls_schannel_protocol_deps="schannel"
2978 tls_schannel_protocol_select="tcp_protocol"
2979 tls_securetransport_protocol_deps="securetransport"
2980 tls_securetransport_protocol_select="tcp_protocol"
2981 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2982 udp_protocol_select="network"
2983 udplite_protocol_select="network"
2984 unix_protocol_deps="sys_un_h"
2985 unix_protocol_select="network"
2986
2987 # filters
2988 afftfilt_filter_deps="avcodec"
2989 afftfilt_filter_select="fft"
2990 amovie_filter_deps="avcodec avformat"
2991 aresample_filter_deps="swresample"
2992 ass_filter_deps="libass"
2993 asyncts_filter_deps="avresample"
2994 atempo_filter_deps="avcodec"
2995 atempo_filter_select="rdft"
2996 azmq_filter_deps="libzmq"
2997 blackframe_filter_deps="gpl"
2998 boxblur_filter_deps="gpl"
2999 bs2b_filter_deps="libbs2b"
3000 colormatrix_filter_deps="gpl"
3001 cover_rect_filter_deps="avcodec avformat gpl"
3002 cropdetect_filter_deps="gpl"
3003 delogo_filter_deps="gpl"
3004 deshake_filter_select="pixelutils"
3005 drawtext_filter_deps="libfreetype"
3006 ebur128_filter_deps="gpl"
3007 eq_filter_deps="gpl"
3008 fftfilt_filter_deps="avcodec"
3009 fftfilt_filter_select="rdft"
3010 find_rect_filter_deps="avcodec avformat gpl"
3011 firequalizer_filter_deps="avcodec"
3012 firequalizer_filter_select="rdft"
3013 flite_filter_deps="libflite"
3014 framerate_filter_select="pixelutils"
3015 frei0r_filter_deps="frei0r dlopen"
3016 frei0r_src_filter_deps="frei0r dlopen"
3017 fspp_filter_deps="gpl"
3018 geq_filter_deps="gpl"
3019 histeq_filter_deps="gpl"
3020 hqdn3d_filter_deps="gpl"
3021 interlace_filter_deps="gpl"
3022 kerndeint_filter_deps="gpl"
3023 ladspa_filter_deps="ladspa dlopen"
3024 loudnorm_filter_deps="libebur128"
3025 mcdeint_filter_deps="avcodec gpl"
3026 movie_filter_deps="avcodec avformat"
3027 mpdecimate_filter_deps="gpl"
3028 mpdecimate_filter_select="pixelutils"
3029 mptestsrc_filter_deps="gpl"
3030 negate_filter_deps="lut_filter"
3031 nnedi_filter_deps="gpl"
3032 ocr_filter_deps="libtesseract"
3033 ocv_filter_deps="libopencv"
3034 owdenoise_filter_deps="gpl"
3035 pan_filter_deps="swresample"
3036 perspective_filter_deps="gpl"
3037 phase_filter_deps="gpl"
3038 pp7_filter_deps="gpl"
3039 pp_filter_deps="gpl postproc"
3040 pullup_filter_deps="gpl"
3041 removelogo_filter_deps="avcodec avformat swscale"
3042 repeatfields_filter_deps="gpl"
3043 resample_filter_deps="avresample"
3044 rubberband_filter_deps="librubberband"
3045 sab_filter_deps="gpl swscale"
3046 scale2ref_filter_deps="swscale"
3047 scale_filter_deps="swscale"
3048 select_filter_select="pixelutils"
3049 showcqt_filter_deps="avcodec avformat swscale"
3050 showcqt_filter_select="fft"
3051 showfreqs_filter_deps="avcodec"
3052 showfreqs_filter_select="fft"
3053 showspectrum_filter_deps="avcodec"
3054 showspectrum_filter_select="fft"
3055 showspectrumpic_filter_deps="avcodec"
3056 showspectrumpic_filter_select="fft"
3057 smartblur_filter_deps="gpl swscale"
3058 sofalizer_filter_deps="netcdf avcodec"
3059 sofalizer_filter_select="fft"
3060 spectrumsynth_filter_deps="avcodec"
3061 spectrumsynth_filter_select="fft"
3062 spp_filter_deps="gpl avcodec"
3063 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3064 stereo3d_filter_deps="gpl"
3065 subtitles_filter_deps="avformat avcodec libass"
3066 super2xsai_filter_deps="gpl"
3067 pixfmts_super2xsai_test_deps="super2xsai_filter"
3068 tinterlace_filter_deps="gpl"
3069 tinterlace_merge_test_deps="tinterlace_filter"
3070 tinterlace_pad_test_deps="tinterlace_filter"
3071 uspp_filter_deps="gpl avcodec"
3072 vidstabdetect_filter_deps="libvidstab"
3073 vidstabtransform_filter_deps="libvidstab"
3074 zmq_filter_deps="libzmq"
3075 zoompan_filter_deps="swscale"
3076 zscale_filter_deps="libzimg"
3077 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3078
3079 # examples
3080 avcodec_example_deps="avcodec avutil"
3081 avio_dir_cmd="avformat avutil"
3082 avio_reading="avformat avcodec avutil"
3083 decoding_encoding_example_deps="avcodec avformat avutil"
3084 demuxing_decoding_example_deps="avcodec avformat avutil"
3085 extract_mvs_example_deps="avcodec avformat avutil"
3086 filter_audio_example_deps="avfilter avutil"
3087 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3088 filtering_video_example_deps="avfilter avcodec avformat avutil"
3089 metadata_example_deps="avformat avutil"
3090 muxing_example_deps="avcodec avformat avutil swscale"
3091 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3092 remuxing_example_deps="avcodec avformat avutil"
3093 resampling_audio_example_deps="avutil swresample"
3094 scaling_video_example_deps="avutil swscale"
3095 transcode_aac_example_deps="avcodec avformat swresample"
3096 transcoding_example_deps="avfilter avcodec avformat avutil"
3097
3098 # libraries, in linking order
3099 avcodec_deps="avutil"
3100 avdevice_deps="avformat avcodec avutil"
3101 avfilter_deps="avutil"
3102 avformat_deps="avcodec avutil"
3103 avresample_deps="avutil"
3104 postproc_deps="avutil gpl"
3105 swresample_deps="avutil"
3106 swscale_deps="avutil"
3107
3108 # programs
3109 ffmpeg_deps="avcodec avfilter avformat swresample"
3110 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3111                null_filter
3112                setpts_filter trim_filter"
3113 ffplay_deps="avcodec avformat swscale swresample sdl"
3114 ffplay_libs='$sdl_libs'
3115 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3116 ffprobe_deps="avcodec avformat"
3117 ffserver_deps="avformat fork sarestart"
3118 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3119
3120 # documentation
3121 podpages_deps="perl"
3122 manpages_deps="perl pod2man"
3123 htmlpages_deps="perl"
3124 htmlpages_deps_any="makeinfo_html texi2html"
3125 txtpages_deps="perl makeinfo"
3126 doc_deps_any="manpages htmlpages podpages txtpages"
3127
3128 # default parameters
3129
3130 logfile="config.log"
3131
3132 # installation paths
3133 prefix_default="/usr/local"
3134 bindir_default='${prefix}/bin'
3135 datadir_default='${prefix}/share/ffmpeg'
3136 docdir_default='${prefix}/share/doc/ffmpeg'
3137 incdir_default='${prefix}/include'
3138 libdir_default='${prefix}/lib'
3139 mandir_default='${prefix}/share/man'
3140
3141 # toolchain
3142 ar_default="ar"
3143 cc_default="gcc"
3144 cxx_default="g++"
3145 host_cc_default="gcc"
3146 cp_f="cp -f"
3147 doxygen_default="doxygen"
3148 install="install"
3149 ln_s_default="ln -s -f"
3150 nm_default="nm -g"
3151 objformat="elf"
3152 pkg_config_default=pkg-config
3153 ranlib_default="ranlib"
3154 strip_default="strip"
3155 yasmexe_default="yasm"
3156 windres_default="windres"
3157
3158 # OS
3159 target_os_default=$(tolower $(uname -s))
3160 host_os=$target_os_default
3161
3162 # machine
3163 if test "$target_os_default" = aix; then
3164     arch_default=$(uname -p)
3165     strip_default="strip -X32_64"
3166 else
3167     arch_default=$(uname -m)
3168 fi
3169 cpu="generic"
3170 intrinsics="none"
3171
3172 # configurable options
3173 enable $PROGRAM_LIST
3174 enable $DOCUMENT_LIST
3175 enable $EXAMPLE_LIST
3176 enable $(filter_out avresample $LIBRARY_LIST)
3177 enable stripping
3178
3179 enable asm
3180 enable debug
3181 enable doc
3182 enable faan faandct faanidct
3183 enable optimizations
3184 enable runtime_cpudetect
3185 enable safe_bitstream_reader
3186 enable static
3187 enable swscale_alpha
3188 enable valgrind_backtrace
3189
3190 sws_max_filter_size_default=256
3191 set_default sws_max_filter_size
3192
3193 # Enable platform codecs by default.
3194 enable audiotoolbox
3195
3196 # Enable hwaccels by default.
3197 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3198 enable xlib
3199
3200 enable vda_framework videotoolbox videotoolbox_encoder
3201
3202 # build settings
3203 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3204 LIBPREF="lib"
3205 LIBSUF=".a"
3206 FULLNAME='$(NAME)$(BUILDSUF)'
3207 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3208 SLIBPREF="lib"
3209 SLIBSUF=".so"
3210 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3211 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3212 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3213 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3214 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3215 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3216
3217 asflags_filter=echo
3218 cflags_filter=echo
3219 ldflags_filter=echo
3220
3221 AS_C='-c'
3222 AS_O='-o $@'
3223 CC_C='-c'
3224 CC_E='-E -o $@'
3225 CC_O='-o $@'
3226 CXX_C='-c'
3227 CXX_O='-o $@'
3228 OBJCC_C='-c'
3229 OBJCC_E='-E -o $@'
3230 OBJCC_O='-o $@'
3231 LD_O='-o $@'
3232 LD_LIB='-l%'
3233 LD_PATH='-L'
3234 HOSTCC_C='-c'
3235 HOSTCC_E='-E -o $@'
3236 HOSTCC_O='-o $@'
3237 HOSTLD_O='-o $@'
3238
3239 host_libs='-lm'
3240 host_cflags_filter=echo
3241 host_ldflags_filter=echo
3242
3243 target_path='$(CURDIR)'
3244
3245 # since the object filename is not given with the -MM flag, the compiler
3246 # is only able to print the basename, and we must add the path ourselves
3247 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3248 DEPFLAGS='-MM'
3249
3250 # find source path
3251 if test -f configure; then
3252     source_path=.
3253 else
3254     source_path=$(cd $(dirname "$0"); pwd)
3255     case "$source_path" in
3256         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3257     esac
3258     test -e "$source_path/config.h" &&
3259         die "Out of tree builds are impossible with config.h in source dir."
3260 fi
3261
3262 for v in "$@"; do
3263     r=${v#*=}
3264     l=${v%"$r"}
3265     r=$(sh_quote "$r")
3266     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3267 done
3268
3269 find_things(){
3270     thing=$1
3271     pattern=$2
3272     file=$source_path/$3
3273     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3274 }
3275
3276 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3277 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3278 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3279 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3280 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3281 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3282 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3283 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3284 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3285
3286 find_things_extern(){
3287     thing=$1
3288     pattern=$2
3289     file=$source_path/$3
3290     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3291 }
3292
3293 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3294 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3295
3296 ALL_COMPONENTS="
3297     $BSF_LIST
3298     $DECODER_LIST
3299     $DEMUXER_LIST
3300     $ENCODER_LIST
3301     $FILTER_LIST
3302     $HWACCEL_LIST
3303     $INDEV_LIST
3304     $MUXER_LIST
3305     $OUTDEV_LIST
3306     $PARSER_LIST
3307     $PROTOCOL_LIST
3308 "
3309
3310 for n in $COMPONENT_LIST; do
3311     v=$(toupper ${n%s})_LIST
3312     eval enable \$$v
3313     eval ${n}_if_any="\$$v"
3314 done
3315
3316 enable $ARCH_EXT_LIST
3317
3318 die_unknown(){
3319     echo "Unknown option \"$1\"."
3320     echo "See $0 --help for available options."
3321     exit 1
3322 }
3323
3324 print_in_columns() {
3325     cols=$(expr $ncols / 24)
3326     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3327 }
3328
3329 show_list() {
3330     suffix=_$1
3331     shift
3332     echo $* | sed s/$suffix//g | print_in_columns
3333     exit 0
3334 }
3335
3336 rand_list(){
3337     IFS=', '
3338     set -- $*
3339     unset IFS
3340     for thing; do
3341         comp=${thing%:*}
3342         prob=${thing#$comp}
3343         prob=${prob#:}
3344         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3345         echo "prob ${prob:-0.5}"
3346         printf '%s\n' $comp
3347     done
3348 }
3349
3350 do_random(){
3351     action=$1
3352     shift
3353     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3354     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3355 }
3356
3357 for opt do
3358     optval="${opt#*=}"
3359     case "$opt" in
3360         --extra-ldflags=*)
3361             add_ldflags $optval
3362         ;;
3363         --extra-ldexeflags=*)
3364             add_ldexeflags $optval
3365         ;;
3366         --extra-ldlibflags=*)
3367             add_ldlibflags $optval
3368         ;;
3369         --extra-libs=*)
3370             add_extralibs $optval
3371         ;;
3372         --disable-devices)
3373             disable $INDEV_LIST $OUTDEV_LIST
3374         ;;
3375         --enable-debug=*)
3376             debuglevel="$optval"
3377         ;;
3378         --disable-programs)
3379             disable $PROGRAM_LIST
3380         ;;
3381         --disable-everything)
3382             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3383         ;;
3384         --disable-all)
3385             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3386             disable $LIBRARY_LIST $PROGRAM_LIST doc
3387             enable avutil
3388         ;;
3389         --enable-random|--disable-random)
3390             action=${opt%%-random}
3391             do_random ${action#--} $COMPONENT_LIST
3392         ;;
3393         --enable-random=*|--disable-random=*)
3394             action=${opt%%-random=*}
3395             do_random ${action#--} $optval
3396         ;;
3397         --enable-*=*|--disable-*=*)
3398             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3399             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3400             eval list=\$$(toupper $thing)_LIST
3401             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3402             list=$(filter "$name" $list)
3403             [ "$list" = "" ] && warn "Option $opt did not match anything"
3404             $action $list
3405         ;;
3406         --enable-?*|--disable-?*)
3407             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3408             if is_in $option $COMPONENT_LIST; then
3409                 test $action = disable && action=unset
3410                 eval $action \$$(toupper ${option%s})_LIST
3411             elif is_in $option $CMDLINE_SELECT; then
3412                 $action $option
3413             else
3414                 die_unknown $opt
3415             fi
3416         ;;
3417         --list-*)
3418             NAME="${opt#--list-}"
3419             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3420             NAME=${NAME%s}
3421             eval show_list $NAME \$$(toupper $NAME)_LIST
3422         ;;
3423         --help|-h) show_help
3424         ;;
3425         --fatal-warnings) enable fatal_warnings
3426         ;;
3427         *)
3428             optname="${opt%%=*}"
3429             optname="${optname#--}"
3430             optname=$(echo "$optname" | sed 's/-/_/g')
3431             if is_in $optname $CMDLINE_SET; then
3432                 eval $optname='$optval'
3433             elif is_in $optname $CMDLINE_APPEND; then
3434                 append $optname "$optval"
3435             else
3436                 die_unknown $opt
3437             fi
3438         ;;
3439     esac
3440 done
3441
3442 for e in $env; do
3443     eval "export $e"
3444 done
3445
3446 disabled logging && logfile=/dev/null
3447
3448 # Disable all the library-specific components if the library itself
3449 # is disabled, see AVCODEC_LIST and following _LIST variables.
3450
3451 disable_components(){
3452     disabled ${1} && disable $(
3453         eval components="\$$(toupper ${1})_COMPONENTS"
3454         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3455     )
3456 }
3457
3458 map 'disable_components $v' $LIBRARY_LIST
3459
3460 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3461 set >> $logfile
3462
3463 test -n "$valgrind" && toolchain="valgrind-memcheck"
3464
3465 case "$toolchain" in
3466     *-asan)
3467         cc_default="${toolchain%-asan}"
3468         add_cflags  -fsanitize=address
3469         add_ldflags -fsanitize=address
3470     ;;
3471     *-msan)
3472         cc_default="${toolchain%-msan}"
3473         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3474         add_ldflags -fsanitize=memory
3475     ;;
3476     *-tsan)
3477         cc_default="${toolchain%-tsan}"
3478         add_cflags  -fsanitize=thread -pie
3479         add_ldflags -fsanitize=thread -pie
3480         case "$toolchain" in
3481             gcc-tsan)
3482                 add_cflags  -fPIC
3483                 add_ldflags -fPIC
3484                 ;;
3485         esac
3486     ;;
3487     *-usan)
3488         cc_default="${toolchain%-usan}"
3489         add_cflags  -fsanitize=undefined
3490         add_ldflags -fsanitize=undefined
3491     ;;
3492     valgrind-*)
3493         target_exec_default="valgrind"
3494         case "$toolchain" in
3495             valgrind-massif)
3496                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3497                 ;;
3498             valgrind-memcheck)
3499                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3500                 ;;
3501         esac
3502     ;;
3503     msvc)
3504         # Check whether the current MSVC version needs the C99 converter.
3505         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3506         # support enough of C99 to build ffmpeg. Default to the new
3507         # behaviour if the regexp was unable to match anything, since this
3508         # successfully parses the version number of existing supported
3509         # versions that require the converter (MSVC 2010 and 2012).
3510         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3511         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3512             cc_default="cl"
3513         else
3514             cc_default="c99wrap cl"
3515         fi
3516         ld_default="$source_path/compat/windows/mslink"
3517         nm_default="dumpbin -symbols"
3518         ar_default="lib"
3519         case "$arch" in
3520         arm*)
3521             as_default="armasm"
3522             ;;
3523         esac
3524         target_os_default="win32"
3525         # Use a relative path for TMPDIR. This makes sure all the
3526         # ffconf temp files are written with a relative path, avoiding
3527         # issues with msys/win32 path conversion for MSVC parameters
3528         # such as -Fo<file> or -out:<file>.
3529         TMPDIR=.
3530     ;;
3531     icl)
3532         cc_default="icl"
3533         ld_default="xilink"
3534         nm_default="dumpbin -symbols"
3535         ar_default="xilib"
3536         target_os_default="win32"
3537         TMPDIR=.
3538     ;;
3539     gcov)
3540         add_cflags  -fprofile-arcs -ftest-coverage
3541         add_ldflags -fprofile-arcs -ftest-coverage
3542     ;;
3543     llvm-cov)
3544         add_cflags -fprofile-arcs -ftest-coverage
3545         add_ldflags --coverage
3546     ;;
3547     hardened)
3548         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3549         add_cflags   -fno-strict-overflow -fstack-protector-all
3550         add_ldflags  -Wl,-z,relro -Wl,-z,now
3551     ;;
3552     ?*)
3553         die "Unknown toolchain $toolchain"
3554     ;;
3555 esac
3556
3557 test -n "$cross_prefix" && enable cross_compile
3558
3559 if enabled cross_compile; then
3560     test -n "$arch" && test -n "$target_os" ||
3561         die "Must specify target arch and OS when cross-compiling"
3562 fi
3563
3564 ar_default="${cross_prefix}${ar_default}"
3565 cc_default="${cross_prefix}${cc_default}"
3566 cxx_default="${cross_prefix}${cxx_default}"
3567 nm_default="${cross_prefix}${nm_default}"
3568 pkg_config_default="${cross_prefix}${pkg_config_default}"
3569 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3570     ranlib_default="${cross_prefix}${ranlib_default} -D"
3571 else
3572     ranlib_default="${cross_prefix}${ranlib_default}"
3573 fi
3574 strip_default="${cross_prefix}${strip_default}"
3575 windres_default="${cross_prefix}${windres_default}"
3576
3577 sysinclude_default="${sysroot}/usr/include"
3578
3579 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3580     target_exec target_os yasmexe
3581 enabled cross_compile || host_cc_default=$cc
3582 set_default host_cc
3583
3584 pkg_config_fail_message=""
3585 if ! $pkg_config --version >/dev/null 2>&1; then
3586     warn "$pkg_config not found, library detection may fail."
3587     pkg_config=false
3588 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3589     pkg_config_fail_message="
3590 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3591 fi
3592
3593 if test $doxygen != $doxygen_default && \
3594   ! $doxygen --version >/dev/null 2>&1; then
3595     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3596 fi
3597
3598 exesuf() {
3599     case $1 in
3600         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3601     esac
3602 }
3603
3604 EXESUF=$(exesuf $target_os)
3605 HOSTEXESUF=$(exesuf $host_os)
3606
3607 # set temporary file name
3608 : ${TMPDIR:=$TEMPDIR}
3609 : ${TMPDIR:=$TMP}
3610 : ${TMPDIR:=/tmp}
3611
3612 if [ -n "$tempprefix" ] ; then
3613     mktemp(){
3614         echo $tempprefix.${HOSTNAME}.${UID}
3615     }
3616 elif ! check_cmd mktemp -u XXXXXX; then
3617     # simple replacement for missing mktemp
3618     # NOT SAFE FOR GENERAL USE
3619     mktemp(){
3620         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3621     }
3622 fi
3623
3624 tmpfile(){
3625     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3626         (set -C; exec > $tmp) 2>/dev/null ||
3627         die "Unable to create temporary file in $TMPDIR."
3628     append TMPFILES $tmp
3629     eval $1=$tmp
3630 }
3631
3632 trap 'rm -f -- $TMPFILES' EXIT
3633
3634 tmpfile TMPASM .asm
3635 tmpfile TMPC   .c
3636 tmpfile TMPCPP .cpp
3637 tmpfile TMPE   $EXESUF
3638 tmpfile TMPH   .h
3639 tmpfile TMPM   .m
3640 tmpfile TMPO   .o
3641 tmpfile TMPS   .S
3642 tmpfile TMPSH  .sh
3643 tmpfile TMPV   .ver
3644
3645 unset -f mktemp
3646
3647 chmod +x $TMPE
3648
3649 # make sure we can execute files in $TMPDIR
3650 cat > $TMPSH 2>> $logfile <<EOF
3651 #! /bin/sh
3652 EOF
3653 chmod +x $TMPSH >> $logfile 2>&1
3654 if ! $TMPSH >> $logfile 2>&1; then
3655     cat <<EOF
3656 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3657 variable to another directory and make sure that it is not mounted noexec.
3658 EOF
3659     die "Sanity test failed."
3660 fi
3661
3662 armasm_flags(){
3663     for flag; do
3664         case $flag in
3665             # Filter out MSVC cl.exe options from cflags that shouldn't
3666             # be passed to gas-preprocessor
3667             -M[TD]*)                                            ;;
3668             *)                  echo $flag                      ;;
3669         esac
3670    done
3671 }
3672
3673 ccc_flags(){
3674     for flag; do
3675         case $flag in
3676             -std=c99)           echo -c99                       ;;
3677             -mcpu=*)            echo -arch ${flag#*=}           ;;
3678             -mieee)             echo -ieee                      ;;
3679             -O*|-fast)          echo $flag                      ;;
3680             -fno-math-errno)    echo -assume nomath_errno       ;;
3681             -g)                 echo -g3                        ;;
3682             -Wall)              echo -msg_enable level2         ;;
3683             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3684             -Wl,*)              echo $flag                      ;;
3685             -f*|-W*)                                            ;;
3686             *)                  echo $flag                      ;;
3687         esac
3688    done
3689 }
3690
3691 cparser_flags(){
3692     for flag; do
3693         case $flag in
3694             -Wno-switch)             echo -Wno-switch-enum ;;
3695             -Wno-format-zero-length) ;;
3696             -Wdisabled-optimization) ;;
3697             -Wno-pointer-sign)       echo -Wno-other ;;
3698             *)                       echo $flag ;;
3699         esac
3700     done
3701 }
3702
3703 msvc_common_flags(){
3704     for flag; do
3705         case $flag in
3706             # In addition to specifying certain flags under the compiler
3707             # specific filters, they must be specified here as well or else the
3708             # generic catch all at the bottom will print the original flag.
3709             -Wall)                ;;
3710             -std=c99)             ;;
3711             # Common flags
3712             -fomit-frame-pointer) ;;
3713             -g)                   echo -Z7 ;;
3714             -fno-math-errno)      ;;
3715             -fno-common)          ;;
3716             -fno-signed-zeros)    ;;
3717             -fPIC)                ;;
3718             -mthumb)              ;;
3719             -march=*)             ;;
3720             -lz)                  echo zlib.lib ;;
3721             -lavifil32)           echo vfw32.lib ;;
3722             -lavicap32)           echo vfw32.lib user32.lib ;;
3723             -lx264)               echo libx264.lib ;;
3724             -l*)                  echo ${flag#-l}.lib ;;
3725             -LARGEADDRESSAWARE)   echo $flag ;;
3726             -L*)                  echo -libpath:${flag#-L} ;;
3727             *)                    echo $flag ;;
3728         esac
3729     done
3730 }
3731
3732 msvc_flags(){
3733     msvc_common_flags "$@"
3734     for flag; do
3735         case $flag in
3736             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3737                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3738                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3739                                        -wd4307 \
3740                                        -wd4273 -wd4554 -wd4701 ;;
3741         esac
3742     done
3743 }
3744
3745 icl_flags(){
3746     msvc_common_flags "$@"
3747     for flag; do
3748         case $flag in
3749             # Despite what Intel's documentation says -Wall, which is supported
3750             # on Windows, does enable remarks so disable them here.
3751             -Wall)                echo $flag -Qdiag-disable:remark ;;
3752             -std=c99)             echo -Qstd=c99 ;;
3753             -flto)                echo -ipo ;;
3754         esac
3755     done
3756 }
3757
3758 icc_flags(){
3759     for flag; do
3760         case $flag in
3761             -flto)                echo -ipo ;;
3762             *)                    echo $flag ;;
3763         esac
3764     done
3765 }
3766
3767 pgi_flags(){
3768     for flag; do
3769         case $flag in
3770             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3771             -fomit-frame-pointer) echo -Mnoframe ;;
3772             -g)                   echo -gopt ;;
3773             *)                    echo $flag ;;
3774         esac
3775     done
3776 }
3777
3778 suncc_flags(){
3779     for flag; do
3780         case $flag in
3781             -march=*|-mcpu=*)
3782                 case "${flag#*=}" in
3783                     native)                   echo -xtarget=native       ;;
3784                     v9|niagara)               echo -xarch=sparc          ;;
3785                     ultrasparc)               echo -xarch=sparcvis       ;;
3786                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3787                     i586|pentium)             echo -xchip=pentium        ;;
3788                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3789                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3790                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3791                     pentium4*)          echo -xtarget=pentium4           ;;
3792                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3793                     *-sse3)             echo -xarch=sse3                 ;;
3794                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3795                     bonnell)                   echo -xarch=ssse3         ;;
3796                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3797                     westmere)                  echo -xtarget=westmere    ;;
3798                     silvermont)                echo -xarch=sse4_2        ;;
3799                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3800                     core-avx*|ivybridge|haswell|broadwell)
3801                                                echo -xarch=avx           ;;
3802                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3803                     btver1)                    echo -xarch=amdsse4a      ;;
3804                     btver2|bdver*)             echo -xarch=avx           ;;
3805                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3806                     k8|opteron|athlon64|athlon-fx)
3807                                                echo -xarch=sse2a         ;;
3808                     athlon*)                   echo -xarch=pentium_proa  ;;
3809                 esac
3810                 ;;
3811             -std=c99)             echo -xc99              ;;
3812             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3813             -fPIC)                echo -KPIC -xcode=pic32 ;;
3814             -W*,*)                echo $flag              ;;
3815             -f*-*|-W*|-mimpure-text)                      ;;
3816             -shared)              echo -G                 ;;
3817             *)                    echo $flag              ;;
3818         esac
3819     done
3820 }
3821
3822 tms470_flags(){
3823     for flag; do
3824         case $flag in
3825             -march=*|-mcpu=*)
3826                 case "${flag#*=}" in
3827                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3828                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3829                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3830                     armv6*|arm11*)          echo -mv=6   ;;
3831                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3832                                             echo -mv=5e  ;;
3833                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3834                 esac
3835                 ;;
3836             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3837             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3838             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3839             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3840             -msoft-float)   echo --float_support=vfplib       ;;
3841             -O[0-3]|-mf=*)  echo $flag                        ;;
3842             -g)             echo -g -mn                       ;;
3843             -pds=*)         echo $flag                        ;;
3844             -D*|-I*)        echo $flag                        ;;
3845             --gcc|--abi=*)  echo $flag                        ;;
3846             -me)            echo $flag                        ;;
3847         esac
3848     done
3849 }
3850
3851 probe_cc(){
3852     pfx=$1
3853     _cc=$2
3854     first=$3
3855
3856     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3857     unset _ld_o _ldflags _ld_lib _ld_path
3858     unset _depflags _DEPCMD _DEPFLAGS
3859     _flags_filter=echo
3860
3861     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3862         true # no-op to avoid reading stdin in following checks
3863     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3864         _type=llvm_gcc
3865         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3866         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3867         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3868         _cflags_speed='-O3'
3869         _cflags_size='-Os'
3870     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3871         _type=gcc
3872         gcc_version=$($_cc --version | head -n1)
3873         gcc_basever=$($_cc -dumpversion)
3874         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3875         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3876         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3877         case $gcc_basever in
3878             2) ;;
3879             2.*) ;;
3880             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3881         esac
3882         if [ "$first" = true ]; then
3883             case $gcc_basever in
3884                 4.2*)
3885                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3886             esac
3887         fi
3888         _cflags_speed='-O3'
3889         _cflags_size='-Os'
3890     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3891         _type=icc
3892         _ident=$($_cc --version | head -n1)
3893         _depflags='-MMD'
3894         _cflags_speed='-O3'
3895         _cflags_size='-Os'
3896         _cflags_noopt='-O1'
3897         _flags_filter=icc_flags
3898     elif $_cc -v 2>&1 | grep -q xlc; then
3899         _type=xlc
3900         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3901         _cflags_speed='-O5'
3902         _cflags_size='-O5 -qcompact'
3903     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3904         _type=ccc
3905         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3906         _DEPFLAGS='-M'
3907         _cflags_speed='-fast'
3908         _cflags_size='-O1'
3909         _flags_filter=ccc_flags
3910     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3911         test -d "$sysroot" || die "No valid sysroot specified."
3912         _type=armcc
3913         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3914         armcc_conf="$PWD/armcc.conf"
3915         $_cc --arm_linux_configure                 \
3916              --arm_linux_config_file="$armcc_conf" \
3917              --configure_sysroot="$sysroot"        \
3918              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3919              die "Error creating armcc configuration file."
3920         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3921         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3922         as_default="${cross_prefix}gcc"
3923         _depflags='-MMD'
3924         _cflags_speed='-O3'
3925         _cflags_size='-Os'
3926     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3927         _type=tms470
3928         _ident=$($_cc -version | head -n1 | tr -s ' ')
3929         _flags='--gcc --abi=eabi -me'
3930         _cc_e='-ppl -fe=$@'
3931         _cc_o='-fe=$@'
3932         _depflags='-ppa -ppd=$(@:.o=.d)'
3933         _cflags_speed='-O3 -mf=5'
3934         _cflags_size='-O3 -mf=2'
3935         _flags_filter=tms470_flags
3936     elif $_cc -v 2>&1 | grep -q clang; then
3937         _type=clang
3938         _ident=$($_cc --version 2>/dev/null | head -n1)
3939         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3940         _cflags_speed='-O3'
3941         _cflags_size='-Os'
3942     elif $_cc -V 2>&1 | grep -q Sun; then
3943         _type=suncc
3944         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3945         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3946         _DEPFLAGS='-xM1 -xc99'
3947         _ldflags='-std=c99'
3948         _cflags_speed='-O5'
3949         _cflags_size='-O5 -xspace'
3950         _flags_filter=suncc_flags
3951     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3952         _type=pathscale
3953         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3954         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3955         _cflags_speed='-O2'
3956         _cflags_size='-Os'
3957         _flags_filter='filter_out -Wdisabled-optimization'
3958     elif $_cc -v 2>&1 | grep -q Open64; then
3959         _type=open64
3960         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3961         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3962         _cflags_speed='-O2'
3963         _cflags_size='-Os'
3964         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3965     elif $_cc -V 2>&1 | grep -q Portland; then
3966         _type=pgi
3967         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3968         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3969         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3970         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3971         _cflags_noopt="-O"
3972         _flags_filter=pgi_flags
3973     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3974         _type=armasm
3975         _ident=$($_cc | head -n1)
3976         # 4509: "This form of conditional instruction is deprecated"
3977         _flags="-nologo -ignore 4509"
3978         _flags_filter=armasm_flags
3979     elif $_cc 2>&1 | grep -q Intel; then
3980         _type=icl
3981         _ident=$($_cc 2>&1 | head -n1)
3982         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3983         # Not only is O3 broken on 13.x+ but it is slower on all previous
3984         # versions (tested) as well.
3985         _cflags_speed="-O2"
3986         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3987         if $_cc 2>&1 | grep -q Linker; then
3988             _ld_o='-out:$@'
3989         else
3990             _ld_o='-Fe$@'
3991         fi
3992         _cc_o='-Fo$@'
3993         _cc_e='-P'
3994         _flags_filter=icl_flags
3995         _ld_lib='lib%.a'
3996         _ld_path='-libpath:'
3997         # -Qdiag-error to make icl error when seeing certain unknown arguments
3998         _flags='-nologo -Qdiag-error:4044,10157'
3999         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4000         # with MSVC which enables it by default.
4001         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4002         disable stripping
4003     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4004         _type=msvc
4005         _ident=$($_cc 2>&1 | head -n1)
4006         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4007         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4008         _cflags_speed="-O2"
4009         _cflags_size="-O1"
4010         if $_cc -nologo- 2>&1 | grep -q Linker; then
4011             _ld_o='-out:$@'
4012         else
4013             _ld_o='-Fe$@'
4014         fi
4015         _cc_o='-Fo$@'
4016         _cc_e='-P -Fi$@'
4017         _flags_filter=msvc_flags
4018         _ld_lib='lib%.a'
4019         _ld_path='-libpath:'
4020         _flags='-nologo'
4021         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4022         disable stripping
4023     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4024         _type=cparser
4025         _ident=$($_cc --version | head -n1)
4026         _depflags='-MMD'
4027         _cflags_speed='-O4'
4028         _cflags_size='-O2'
4029         _flags_filter=cparser_flags
4030     fi
4031
4032     eval ${pfx}_type=\$_type
4033     eval ${pfx}_ident=\$_ident
4034 }
4035
4036 set_ccvars(){
4037     eval ${1}_C=\${_cc_c-\${${1}_C}}
4038     eval ${1}_E=\${_cc_e-\${${1}_E}}
4039     eval ${1}_O=\${_cc_o-\${${1}_O}}
4040
4041     if [ -n "$_depflags" ]; then
4042         eval ${1}_DEPFLAGS=\$_depflags
4043     else
4044         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4045         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4046         eval DEP${1}FLAGS=\$_flags
4047     fi
4048 }
4049
4050 probe_cc cc "$cc" "true"
4051 cflags_filter=$_flags_filter
4052 cflags_speed=$_cflags_speed
4053 cflags_size=$_cflags_size
4054 cflags_noopt=$_cflags_noopt
4055 add_cflags $_flags $_cflags
4056 cc_ldflags=$_ldflags
4057 set_ccvars CC
4058
4059 probe_cc hostcc "$host_cc"
4060 host_cflags_filter=$_flags_filter
4061 add_host_cflags  $_flags $_cflags
4062 set_ccvars HOSTCC
4063
4064 test -n "$cc_type" && enable $cc_type ||
4065     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4066
4067 : ${as_default:=$cc}
4068 : ${objcc_default:=$cc}
4069 : ${dep_cc_default:=$cc}
4070 : ${ld_default:=$cc}
4071 : ${host_ld_default:=$host_cc}
4072 set_default ar as objcc dep_cc ld ln_s host_ld windres
4073
4074 probe_cc as "$as"
4075 asflags_filter=$_flags_filter
4076 add_asflags $_flags $_cflags
4077 set_ccvars AS
4078
4079 probe_cc objcc "$objcc"
4080 objcflags_filter=$_flags_filter
4081 add_objcflags $_flags $_cflags
4082 set_ccvars OBJC
4083
4084 probe_cc ld "$ld"
4085 ldflags_filter=$_flags_filter
4086 add_ldflags $_flags $_ldflags
4087 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4088 LD_O=${_ld_o-$LD_O}
4089 LD_LIB=${_ld_lib-$LD_LIB}
4090 LD_PATH=${_ld_path-$LD_PATH}
4091
4092 probe_cc hostld "$host_ld"
4093 host_ldflags_filter=$_flags_filter
4094 add_host_ldflags $_flags $_ldflags
4095 HOSTLD_O=${_ld_o-$HOSTLD_O}
4096
4097 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4098     probe_cc depcc "$dep_cc"
4099     CCDEP=${_DEPCMD:-$DEPCMD}
4100     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4101     DEPCCFLAGS=$_flags
4102 fi
4103
4104 if $ar 2>&1 | grep -q Microsoft; then
4105     arflags="-nologo"
4106     ar_o='-out:$@'
4107 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4108     arflags="rq"
4109     ar_o='$@'
4110 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4111     arflags='-Xany -r -c'
4112     ar_o='$@'
4113 elif $ar 2>&1 | grep -q "\[D\] "; then
4114     arflags="rcD"
4115     ar_o='$@'
4116 else
4117     arflags="rc"
4118     ar_o='$@'
4119 fi
4120
4121 add_cflags $extra_cflags
4122 add_cxxflags $extra_cxxflags
4123 add_objcflags $extra_objcflags
4124 add_asflags $extra_cflags
4125
4126 if test -n "$sysroot"; then
4127     case "$cc_type" in
4128         gcc|llvm_gcc|clang)
4129             add_cppflags --sysroot="$sysroot"
4130             add_ldflags --sysroot="$sysroot"
4131 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4132             add_cppflags -isysroot "$sysroot"
4133             add_ldflags -isysroot "$sysroot"
4134         ;;
4135         tms470)
4136             add_cppflags -I"$sysinclude"
4137             add_ldflags  --sysroot="$sysroot"
4138         ;;
4139     esac
4140 fi
4141
4142 if test "$cpu" = host; then
4143     enabled cross_compile &&
4144         die "--cpu=host makes no sense when cross-compiling."
4145
4146     case "$cc_type" in
4147         gcc|llvm_gcc)
4148             check_native(){
4149                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4150                 sed -n "/cc1.*$1=/{
4151                             s/.*$1=\\([^ ]*\\).*/\\1/
4152                             p
4153                             q
4154                         }" $TMPE
4155             }
4156             cpu=$(check_native -march || check_native -mcpu)
4157         ;;
4158         clang)
4159             check_native(){
4160                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4161                 sed -n "/cc1.*-target-cpu /{
4162                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4163                             p
4164                             q
4165                         }" $TMPE
4166             }
4167             cpu=$(check_native -march)
4168         ;;
4169     esac
4170
4171     test "${cpu:-host}" = host &&
4172         die "--cpu=host not supported with compiler $cc"
4173 fi
4174
4175 # Deal with common $arch aliases
4176 case "$arch" in
4177     aarch64|arm64)
4178         arch="aarch64"
4179     ;;
4180     arm*|iPad*|iPhone*)
4181         arch="arm"
4182     ;;
4183     mips*|IP*)
4184         case "$arch" in
4185         *el)
4186             add_cppflags -EL
4187             add_ldflags -EL
4188         ;;
4189         *eb)
4190             add_cppflags -EB
4191             add_ldflags -EB
4192         ;;
4193         esac
4194         arch="mips"
4195     ;;
4196     parisc*|hppa*)
4197         arch="parisc"
4198     ;;
4199     "Power Macintosh"|ppc*|powerpc*)
4200         arch="ppc"
4201     ;;
4202     s390|s390x)
4203         arch="s390"
4204     ;;
4205     sh4|sh)
4206         arch="sh4"
4207     ;;
4208     sun4u|sparc*)
4209         arch="sparc"
4210     ;;
4211     tilegx|tile-gx)
4212         arch="tilegx"
4213     ;;
4214     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4215         arch="x86"
4216     ;;
4217 esac
4218
4219 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4220 enable $arch
4221
4222 # Add processor-specific flags
4223 if enabled aarch64; then
4224
4225     case $cpu in
4226         armv*)
4227             cpuflags="-march=$cpu"
4228         ;;
4229         *)
4230             cpuflags="-mcpu=$cpu"
4231         ;;
4232     esac
4233
4234 elif enabled alpha; then
4235
4236     cpuflags="-mcpu=$cpu"
4237
4238 elif enabled arm; then
4239
4240     check_arm_arch() {
4241         check_cpp_condition stddef.h \
4242             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4243             $cpuflags
4244     }
4245
4246     probe_arm_arch() {
4247         if   check_arm_arch 4;        then echo armv4
4248         elif check_arm_arch 4T;       then echo armv4t
4249         elif check_arm_arch 5;        then echo armv5
4250         elif check_arm_arch 5E;       then echo armv5e
4251         elif check_arm_arch 5T;       then echo armv5t
4252         elif check_arm_arch 5TE;      then echo armv5te
4253         elif check_arm_arch 5TEJ;     then echo armv5te
4254         elif check_arm_arch 6;        then echo armv6
4255         elif check_arm_arch 6J;       then echo armv6j
4256         elif check_arm_arch 6K;       then echo armv6k
4257         elif check_arm_arch 6Z;       then echo armv6z
4258         elif check_arm_arch 6ZK;      then echo armv6zk
4259         elif check_arm_arch 6T2;      then echo armv6t2
4260         elif check_arm_arch 7;        then echo armv7
4261         elif check_arm_arch 7A  7_A;  then echo armv7-a
4262         elif check_arm_arch 7S;       then echo armv7-a
4263         elif check_arm_arch 7R  7_R;  then echo armv7-r
4264         elif check_arm_arch 7M  7_M;  then echo armv7-m
4265         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4266         elif check_arm_arch 8A  8_A;  then echo armv8-a
4267         fi
4268     }
4269
4270     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4271
4272     case $cpu in
4273         armv*)
4274             cpuflags="-march=$cpu"
4275             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4276         ;;
4277         *)
4278             cpuflags="-mcpu=$cpu"
4279             case $cpu in
4280                 cortex-a*)                               subarch=armv7a  ;;
4281                 cortex-r*)                               subarch=armv7r  ;;
4282                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4283                 arm11*)                                  subarch=armv6   ;;
4284                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4285                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4286                 *)                             subarch=$(probe_arm_arch) ;;
4287             esac
4288         ;;
4289     esac
4290
4291     case "$subarch" in
4292         armv5t*)    enable fast_clz                ;;
4293         armv[6-8]*)
4294             enable fast_clz
4295             disabled fast_unaligned || enable fast_unaligned
4296             ;;
4297     esac
4298
4299 elif enabled avr32; then
4300
4301     case $cpu in
4302         ap7[02]0[0-2])
4303             subarch="avr32_ap"
4304             cpuflags="-mpart=$cpu"
4305         ;;
4306         ap)
4307             subarch="avr32_ap"
4308             cpuflags="-march=$cpu"
4309         ;;
4310         uc3[ab]*)
4311             subarch="avr32_uc"
4312             cpuflags="-mcpu=$cpu"
4313         ;;
4314         uc)
4315             subarch="avr32_uc"
4316             cpuflags="-march=$cpu"
4317         ;;
4318     esac
4319
4320 elif enabled bfin; then
4321
4322     cpuflags="-mcpu=$cpu"
4323
4324 elif enabled mips; then
4325
4326     cpuflags="-march=$cpu"
4327
4328     if [ "$cpu" != "generic" ]; then
4329         disable mips32r2
4330         disable mips32r5
4331         disable mips64r2
4332         disable mips32r6
4333         disable mips64r6
4334         disable loongson2
4335         disable loongson3
4336
4337         case $cpu in
4338             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4339                 enable mips32r2
4340                 disable msa
4341             ;;
4342             p5600|i6400)
4343                 disable mipsdsp
4344                 disable mipsdspr2
4345             ;;
4346             loongson*)
4347                 enable loongson2
4348                 enable loongson3
4349                 enable local_aligned_8 local_aligned_16 local_aligned_32
4350                 enable simd_align_16
4351                 enable fast_64bit
4352                 enable fast_clz
4353                 enable fast_cmov
4354                 enable fast_unaligned
4355                 disable aligned_stack
4356                 case $cpu in
4357                     loongson3*)
4358                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4359                     ;;
4360                     loongson2e)
4361                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4362                     ;;
4363                     loongson2f)
4364                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4365                     ;;
4366                 esac
4367             ;;
4368             *)
4369                 # Unknown CPU. Disable everything.
4370                 warn "unknown CPU. Disabling all MIPS optimizations."
4371                 disable mipsfpu
4372                 disable mipsdsp
4373                 disable mipsdspr2
4374                 disable msa
4375                 disable mmi
4376             ;;
4377         esac
4378
4379         case $cpu in
4380             24kc)
4381                 disable mipsfpu
4382                 disable mipsdsp
4383                 disable mipsdspr2
4384             ;;
4385             24kf*)
4386                 disable mipsdsp
4387                 disable mipsdspr2
4388             ;;
4389             24kec|34kc|1004kc)
4390                 disable mipsfpu
4391                 disable mipsdspr2
4392             ;;
4393             24kef*|34kf*|1004kf*)
4394                 disable mipsdspr2
4395             ;;
4396             74kc)
4397                 disable mipsfpu
4398             ;;
4399             p5600)
4400                 enable mips32r5
4401                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4402             ;;
4403             i6400)
4404                 enable mips64r6
4405                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4406             ;;
4407         esac
4408     else
4409         # We do not disable anything. Is up to the user to disable the unwanted features.
4410         warn 'generic cpu selected'
4411     fi
4412
4413 elif enabled ppc; then
4414
4415     disable ldbrx
4416
4417     case $(tolower $cpu) in
4418         601|ppc601|powerpc601)
4419             cpuflags="-mcpu=601"
4420             disable altivec
4421         ;;
4422         603*|ppc603*|powerpc603*)
4423             cpuflags="-mcpu=603"
4424             disable altivec
4425         ;;
4426         604*|ppc604*|powerpc604*)
4427             cpuflags="-mcpu=604"
4428             disable altivec
4429         ;;
4430         g3|75*|ppc75*|powerpc75*)
4431             cpuflags="-mcpu=750"
4432             disable altivec
4433         ;;
4434         g4|745*|ppc745*|powerpc745*)
4435             cpuflags="-mcpu=7450"
4436             disable vsx
4437         ;;
4438         74*|ppc74*|powerpc74*)
4439             cpuflags="-mcpu=7400"
4440             disable vsx
4441         ;;
4442         g5|970|ppc970|powerpc970)
4443             cpuflags="-mcpu=970"
4444             disable vsx
4445         ;;
4446         power[3-6]*)
4447             cpuflags="-mcpu=$cpu"
4448             disable vsx
4449         ;;
4450         power[7-8]*)
4451             cpuflags="-mcpu=$cpu"
4452         ;;
4453         cell)
4454             cpuflags="-mcpu=cell"
4455             enable ldbrx
4456             disable vsx
4457         ;;
4458         e500mc)
4459             cpuflags="-mcpu=e500mc"
4460             disable altivec
4461         ;;
4462         e500v2)
4463             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4464             disable altivec
4465             disable dcbzl
4466         ;;
4467         e500)
4468             cpuflags="-mcpu=8540 -mhard-float"
4469             disable altivec
4470             disable dcbzl
4471         ;;
4472     esac
4473
4474 elif enabled sparc; then
4475
4476     case $cpu in
4477         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4478             cpuflags="-mcpu=$cpu"
4479         ;;
4480         ultrasparc*|niagara[234])
4481             cpuflags="-mcpu=$cpu"
4482         ;;
4483     esac
4484
4485 elif enabled x86; then
4486
4487     case $cpu in
4488         i[345]86|pentium)
4489             cpuflags="-march=$cpu"
4490             disable i686
4491             disable mmx
4492         ;;
4493         # targets that do NOT support nopl and conditional mov (cmov)
4494         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4495             cpuflags="-march=$cpu"
4496             disable i686
4497         ;;
4498         # targets that do support nopl and conditional mov (cmov)
4499         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4500         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4501             cpuflags="-march=$cpu"
4502             enable i686
4503             enable fast_cmov
4504         ;;
4505         # targets that do support conditional mov but on which it's slow
4506         pentium4|pentium4m|prescott|nocona)
4507             cpuflags="-march=$cpu"
4508             enable i686
4509             disable fast_cmov
4510         ;;
4511     esac
4512
4513 fi
4514
4515 if [ "$cpu" != generic ]; then
4516     add_cflags  $cpuflags
4517     add_asflags $cpuflags
4518     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4519 fi
4520
4521 # compiler sanity check
4522 check_exec <<EOF
4523 int main(void){ return 0; }
4524 EOF
4525 if test "$?" != 0; then
4526     echo "$cc is unable to create an executable file."
4527     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4528         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4529         echo "Only do this if you know what cross compiling means."
4530     fi
4531     die "C compiler test failed."
4532 fi
4533
4534 add_cppflags -D_ISOC99_SOURCE
4535 add_cxxflags -D__STDC_CONSTANT_MACROS
4536 add_cxxflags -std=c++11
4537 check_cflags -std=c99
4538 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4539 #include <stdlib.h>
4540 EOF
4541 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4542 #include <stdlib.h>
4543 EOF
4544
4545 add_host_cppflags -D_ISOC99_SOURCE
4546 check_host_cflags -std=c99
4547 check_host_cflags -Wall
4548 check_host_cflags -O3
4549
4550 check_64bit(){
4551     arch32=$1
4552     arch64=$2
4553     expr=$3
4554     check_code cc "" "int test[2*($expr) - 1]" &&
4555         subarch=$arch64 || subarch=$arch32
4556 }
4557
4558 case "$arch" in
4559     aarch64|alpha|ia64)
4560         spic=$shared
4561     ;;
4562     mips)
4563         check_64bit mips mips64 '_MIPS_SIM > 1'
4564         spic=$shared
4565     ;;
4566     parisc)
4567         check_64bit parisc parisc64 'sizeof(void *) > 4'
4568         spic=$shared
4569     ;;
4570     ppc)
4571         check_64bit ppc ppc64 'sizeof(void *) > 4'
4572         spic=$shared
4573     ;;
4574     s390)
4575         check_64bit s390 s390x 'sizeof(void *) > 4'
4576         spic=$shared
4577     ;;
4578     sparc)
4579         check_64bit sparc sparc64 'sizeof(void *) > 4'
4580         spic=$shared
4581     ;;
4582     x86)
4583         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4584         # Treat x32 as x64 for now. Note it also needs spic=$shared
4585         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4586             subarch=x86_64
4587         if test "$subarch" = "x86_64"; then
4588             spic=$shared
4589         fi
4590     ;;
4591     ppc)
4592         check_cc <<EOF && subarch="ppc64"
4593         int test[(int)sizeof(char*) - 7];
4594 EOF
4595     ;;
4596 esac
4597
4598 enable $subarch
4599 enabled spic && enable_weak pic
4600
4601 # OS specific
4602 case $target_os in
4603     aix)
4604         SHFLAGS=-shared
4605         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4606         enabled shared && add_ldflags -Wl,-brtl
4607         ;;
4608     android)
4609         disable symver
4610         enable section_data_rel_ro
4611         SLIB_INSTALL_NAME='$(SLIBNAME)'
4612         SLIB_INSTALL_LINKS=
4613         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4614         ;;
4615     haiku)
4616         prefix_default="/boot/common"
4617         network_extralibs="-lnetwork"
4618         host_libs=
4619         ;;
4620     sunos)
4621         SHFLAGS='-shared -Wl,-h,$$(@F)'
4622         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4623         network_extralibs="-lsocket -lnsl"
4624         add_cppflags -D__EXTENSIONS__
4625         # When using suncc to build, the Solaris linker will mark
4626         # an executable with each instruction set encountered by
4627         # the Solaris assembler.  As our libraries contain their own
4628         # guards for processor-specific code, instead suppress
4629         # generation of the HWCAPS ELF section on Solaris x86 only.
4630         enabled_all suncc x86 &&
4631             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4632             add_ldflags -Wl,-M,mapfile
4633         nm_default='nm -P -g'
4634         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4635         ;;
4636     netbsd)
4637         disable symver
4638         oss_indev_extralibs="-lossaudio"
4639         oss_outdev_extralibs="-lossaudio"
4640         enabled gcc || check_ldflags -Wl,-zmuldefs
4641         ;;
4642     openbsd|bitrig)
4643         disable symver
4644         SHFLAGS='-shared'
4645         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4646         SLIB_INSTALL_LINKS=
4647         oss_indev_extralibs="-lossaudio"
4648         oss_outdev_extralibs="-lossaudio"
4649         ;;
4650     dragonfly)
4651         disable symver
4652         ;;
4653     freebsd)
4654         ;;
4655     bsd/os)
4656         add_extralibs -lpoll -lgnugetopt
4657         strip="strip -d"
4658         ;;
4659     darwin)
4660         enabled ppc && add_asflags -force_cpusubtype_ALL
4661         install_name_dir_default='$(SHLIBDIR)'
4662         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4663         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4664         strip="${strip} -x"
4665         add_ldflags -Wl,-dynamic,-search_paths_first
4666         SLIBSUF=".dylib"
4667         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4668         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4669         objformat="macho"
4670         enabled x86_64 && objformat="macho64"
4671         enabled_any pic shared x86_64 ||
4672             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4673         check_header dispatch/dispatch.h &&
4674             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4675         ;;
4676     msys*)
4677         die "Native MSYS builds are discouraged, please use the MINGW environment."
4678         ;;
4679     mingw32*|mingw64*)
4680         if test $target_os = "mingw32ce"; then
4681             disable network
4682         else
4683             target_os=mingw32
4684         fi
4685         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4686         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4687         LIBTARGET=i386
4688         if enabled x86_64; then
4689             LIBTARGET="i386:x86-64"
4690         elif enabled arm; then
4691             LIBTARGET=arm-wince
4692         fi
4693         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4694         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4695         shlibdir_default="$bindir_default"
4696         SLIBPREF=""
4697         SLIBSUF=".dll"
4698         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4699         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4700         dlltool="${cross_prefix}dlltool"
4701         if check_cmd lib.exe -list; then
4702             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4703             if enabled x86_64; then
4704                 LIBTARGET=x64
4705             fi
4706         elif check_cmd $dlltool --version; then
4707             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4708         fi
4709         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4710         SLIB_INSTALL_LINKS=
4711         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4712         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4713         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4714         objformat="win32"
4715         ranlib=:
4716         enable dos_paths
4717         check_ldflags -Wl,--nxcompat,--dynamicbase
4718         # Lets work around some stupidity in binutils.
4719         # ld will strip relocations from executables even though we need them
4720         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4721         # however ld then forgets what the entry point should be (oops) so we
4722         # have to manually (re)set it.
4723         if enabled x86_32; then
4724             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4725         elif enabled x86_64; then
4726             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4727             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4728             # Set image base >4GB for extra entropy with HEASLR
4729             add_ldexeflags -Wl,--image-base,0x140000000
4730             append SHFLAGS -Wl,--image-base,0x180000000
4731         fi
4732         ;;
4733     win32|win64)
4734         disable symver
4735         if enabled shared; then
4736             # Link to the import library instead of the normal static library
4737             # for shared libs.
4738             LD_LIB='%.lib'
4739             # Cannot build both shared and static libs with MSVC or icl.
4740             disable static
4741         fi
4742         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4743         shlibdir_default="$bindir_default"
4744         SLIBPREF=""
4745         SLIBSUF=".dll"
4746         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4747         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4748         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4749         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4750         SLIB_INSTALL_LINKS=
4751         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4752         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4753         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4754         objformat="win32"
4755         ranlib=:
4756         enable dos_paths
4757         ;;
4758     cygwin*)
4759         target_os=cygwin
4760         shlibdir_default="$bindir_default"
4761         SLIBPREF="cyg"
4762         SLIBSUF=".dll"
4763         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4764         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4765         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4766         SLIB_INSTALL_LINKS=
4767         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4768         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4769         objformat="win32"
4770         enable dos_paths
4771         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4772         ;;
4773     *-dos|freedos|opendos)
4774         network_extralibs="-lsocket"
4775         objformat="coff"
4776         enable dos_paths
4777         add_cppflags -U__STRICT_ANSI__
4778         ;;
4779     linux)
4780         enable dv1394
4781         enable section_data_rel_ro
4782         ;;
4783     irix*)
4784         target_os=irix
4785         ranlib="echo ignoring ranlib"
4786         ;;
4787     os/2*)
4788         strip="lxlite -CS"
4789         objformat="aout"
4790         add_cppflags -D_GNU_SOURCE
4791         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4792         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4793         LIBSUF="_s.a"
4794         SLIBPREF=""
4795         SLIBSUF=".dll"
4796         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4797         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4798         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
4799             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
4800             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
4801             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
4802             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
4803         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
4804             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
4805         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4806         SLIB_INSTALL_LINKS=
4807         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
4808         enable dos_paths
4809         enable_weak os2threads
4810         ;;
4811     gnu/kfreebsd)
4812         add_cppflags -D_BSD_SOURCE
4813         ;;
4814     gnu)
4815         ;;
4816     qnx)
4817         add_cppflags -D_QNX_SOURCE
4818         network_extralibs="-lsocket"
4819         ;;
4820     symbian)
4821         SLIBSUF=".dll"
4822         enable dos_paths
4823         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4824         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4825         add_ldflags -Wl,--target1-abs,--no-undefined \
4826                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4827                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4828         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4829                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4830                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4831         ;;
4832     osf1)
4833         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4834         ;;
4835     minix)
4836         ;;
4837     plan9)
4838         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4839                      -D_REENTRANT_SOURCE        \
4840                      -D_RESEARCH_SOURCE         \
4841                      -DFD_SETSIZE=96            \
4842                      -DHAVE_SOCK_OPTS
4843         add_compat strtod.o strtod=avpriv_strtod
4844         network_extralibs='-lbsd'
4845         exeobjs=compat/plan9/main.o
4846         disable ffserver
4847         cp_f='cp'
4848         ;;
4849     none)
4850         ;;
4851     *)
4852         die "Unknown OS '$target_os'."
4853         ;;
4854 esac
4855
4856 # test if creating links works
4857 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4858 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4859 mkdir "$link_dest"
4860 $ln_s "$link_dest" "$link_name"
4861 touch "$link_dest/test_file"
4862 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4863     # create link to source path
4864     [ -e src ] && rm src
4865     $ln_s "$source_path" src
4866     source_link=src
4867 else
4868     # creating directory links doesn't work
4869     # fall back to using the full source path
4870     source_link="$source_path"
4871 fi
4872 # cleanup
4873 rm -r "$link_dest"
4874 rm -r "$link_name"
4875
4876 # determine libc flavour
4877
4878 probe_libc(){
4879     pfx=$1
4880     pfx_no_=${pfx%_}
4881     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4882     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4883         eval ${pfx}libc_type=uclibc
4884         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4885     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4886         eval ${pfx}libc_type=glibc
4887         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4888     # MinGW headers can be installed on Cygwin, so check for newlib first.
4889     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4890         eval ${pfx}libc_type=newlib
4891         add_${pfx}cppflags -U__STRICT_ANSI__
4892     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4893     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4894         eval ${pfx}libc_type=mingw64
4895         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4896             add_compat msvcrt/snprintf.o
4897             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4898         fi
4899         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4900         eval test \$${pfx_no_}cc_type = "gcc" &&
4901             add_${pfx}cppflags -D__printf__=__gnu_printf__
4902     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4903          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4904         eval ${pfx}libc_type=mingw32
4905         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4906             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4907             die "ERROR: MinGW32 runtime version must be >= 3.15."
4908         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4909         eval test \$${pfx_no_}cc_type = "gcc" &&
4910             add_${pfx}cppflags -D__printf__=__gnu_printf__
4911     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4912         eval ${pfx}libc_type=msvcrt
4913         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4914             if [ "$pfx" = host_ ]; then
4915                 add_host_cppflags -Dsnprintf=_snprintf
4916             else
4917                 add_compat strtod.o strtod=avpriv_strtod
4918                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4919                                              _snprintf=avpriv_snprintf  \
4920                                              vsnprintf=avpriv_vsnprintf
4921             fi
4922         fi
4923         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4924         # 0x601 by default unless something else is set by the user.
4925         # This can easily lead to us detecting functions only present
4926         # in such new versions and producing binaries requiring windows 7.0.
4927         # Therefore explicitly set the default to XP unless the user has
4928         # set something else on the command line.
4929         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4930         # family. For these cases, configure is free to use any functions
4931         # found in the SDK headers by default. (Alternatively, we could force
4932         # _WIN32_WINNT to 0x0602 in that case.)
4933         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4934             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4935 #ifdef WINAPI_FAMILY
4936 #include <winapifamily.h>
4937 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4938 #error not desktop
4939 #endif
4940 #endif
4941 EOF
4942     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4943         eval ${pfx}libc_type=klibc
4944     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4945         eval ${pfx}libc_type=bionic
4946     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4947         eval ${pfx}libc_type=solaris
4948         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4949     fi
4950     check_${pfx}cc <<EOF
4951 #include <time.h>
4952 void *v = localtime_r;
4953 EOF
4954 test "$?" != 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
4955 #include <time.h>
4956 void *v = localtime_r;
4957 EOF
4958
4959 }
4960
4961 probe_libc
4962 test -n "$libc_type" && enable libc_$libc_type
4963 probe_libc host_
4964 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4965
4966 case $libc_type in
4967     bionic)
4968         add_compat strtod.o strtod=avpriv_strtod
4969         ;;
4970 esac
4971
4972 # hacks for compiler/libc/os combinations
4973
4974 if enabled_all tms470 libc_glibc; then
4975     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4976     add_cppflags -D__USER_LABEL_PREFIX__=
4977     add_cppflags -D__builtin_memset=memset
4978     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4979     add_cflags   -pds=48    # incompatible redefinition of macro
4980 fi
4981
4982 if enabled_all ccc libc_glibc; then
4983     add_ldflags -Wl,-z,now  # calls to libots crash without this
4984 fi
4985
4986 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4987     add_cppflags '-I\$(SRC_PATH)/compat/float'
4988
4989 esc(){
4990     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4991 }
4992
4993 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4994
4995 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4996
4997 set_default libdir
4998 : ${shlibdir_default:="$libdir"}
4999 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5000
5001 set_default $PATHS_LIST
5002 set_default nm
5003
5004 # we need to build at least one lib type
5005 if ! enabled_any static shared; then
5006     cat <<EOF
5007 At least one library type must be built.
5008 Specify --enable-static to build the static libraries or --enable-shared to
5009 build the shared libraries as well. To only build the shared libraries specify
5010 --disable-static in addition to --enable-shared.
5011 EOF
5012     exit 1
5013 fi
5014
5015 die_license_disabled() {
5016     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
5017 }
5018
5019 die_license_disabled_gpl() {
5020     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
5021 }
5022
5023 die_license_disabled gpl frei0r
5024 die_license_disabled gpl libcdio
5025 die_license_disabled gpl librubberband
5026 die_license_disabled gpl libsmbclient
5027 die_license_disabled gpl libvidstab
5028 die_license_disabled gpl libx264
5029 die_license_disabled gpl libx265
5030 die_license_disabled gpl libxavs
5031 die_license_disabled gpl libxvid
5032 die_license_disabled gpl x11grab
5033
5034 die_license_disabled nonfree cuda
5035 die_license_disabled nonfree cuvid
5036 die_license_disabled nonfree libfaac
5037 die_license_disabled nonfree libnpp
5038 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
5039 enabled gpl && die_license_disabled_gpl nonfree openssl
5040
5041 die_license_disabled version3 gmp
5042 die_license_disabled version3 libopencore_amrnb
5043 die_license_disabled version3 libopencore_amrwb
5044 die_license_disabled version3 libsmbclient
5045 die_license_disabled version3 libvo_amrwbenc
5046
5047 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
5048
5049 disabled optimizations || check_cflags -fomit-frame-pointer
5050
5051 enable_weak_pic() {
5052     disabled pic && return
5053     enable pic
5054     add_cppflags -DPIC
5055     case "$target_os" in
5056     mingw*|cygwin*)
5057         ;;
5058     *)
5059         add_cflags -fPIC
5060         ;;
5061     esac
5062     add_asflags  -fPIC
5063 }
5064
5065 enabled pic && enable_weak_pic
5066
5067 check_cc <<EOF || die "Symbol mangling check failed."
5068 int ff_extern;
5069 EOF
5070 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5071 extern_prefix=${sym%%ff_extern*}
5072
5073 check_cc <<EOF && enable_weak inline_asm
5074 void foo(void) { __asm__ volatile ("" ::); }
5075 EOF
5076
5077 _restrict=
5078 for restrict_keyword in restrict __restrict__ __restrict; do
5079     check_cc <<EOF && _restrict=$restrict_keyword && break
5080 void foo(char * $restrict_keyword p);
5081 EOF
5082 done
5083
5084 check_cc <<EOF && enable pragma_deprecated
5085 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5086 EOF
5087
5088 check_cc <<EOF && enable attribute_packed
5089 struct { int x; } __attribute__((packed)) x;
5090 EOF
5091
5092 check_cc <<EOF && enable attribute_may_alias
5093 union { int x; } __attribute__((may_alias)) x;
5094 EOF
5095
5096 check_cc <<EOF || die "endian test failed"
5097 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5098 EOF
5099 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5100
5101 if ! enabled ppc64 || enabled bigendian; then
5102     disable vsx
5103 fi
5104
5105 check_gas() {
5106     log "check_gas using '$as' as AS"
5107     # :vararg is used on aarch64, arm and ppc altivec
5108     check_as <<EOF || return 1
5109 .macro m n, y:vararg=0
5110 \n: .int \y
5111 .endm
5112 m x
5113 EOF
5114     # .altmacro is only used in arm asm
5115     ! enabled arm || check_as <<EOF || return 1
5116 .altmacro
5117 EOF
5118     enable gnu_as
5119     return 0
5120 }
5121
5122 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5123     nogas=:
5124     enabled_any arm aarch64 && nogas=die
5125     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5126     as_noop=-v
5127
5128     case $as_type in
5129         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5130         gcc)  gaspp_as_type=gas ;;
5131         *)    gaspp_as_type=$as_type ;;
5132     esac
5133
5134     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5135
5136     test "${as#*gas-preprocessor.pl}" != "$as" ||
5137     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5138         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5139
5140     if ! check_gas ; then
5141         as=${gas:=$as}
5142         check_gas || \
5143             $nogas "GNU assembler not found, install/update gas-preprocessor"
5144     fi
5145
5146     check_as <<EOF && enable as_func
5147 .func test
5148 .endfunc
5149 EOF
5150 fi
5151
5152 check_inline_asm inline_asm_labels '"1:\n"'
5153
5154 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5155
5156 if enabled aarch64; then
5157     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5158     # internal assembler in clang 3.3 does not support this instruction
5159     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5160     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5161
5162     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5163
5164 elif enabled alpha; then
5165
5166     check_cflags -mieee
5167
5168 elif enabled arm; then
5169
5170     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5171
5172     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5173 float func(float a, float b){ return a+b; }
5174 EOF
5175
5176     enabled thumb && check_cflags -mthumb || check_cflags -marm
5177
5178     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5179         enable vfp_args
5180     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5181         enable vfp_args
5182     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5183         case "${cross_prefix:-$cc}" in
5184             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5185             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5186 __asm__ (".eabi_attribute 28, 1");
5187 int main(void) { return 0; }
5188 EOF
5189         esac
5190         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5191     fi
5192
5193     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5194     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5195     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5196     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5197     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5198     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5199     enabled setend  && check_insn setend  'setend be'
5200
5201     [ $target_os = linux ] || [ $target_os = android ] ||
5202         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5203             $ARCH_EXT_LIST_ARM
5204
5205     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5206
5207     check_as <<EOF && enable as_dn_directive
5208 ra .dn d0.i16
5209 .unreq ra
5210 EOF
5211
5212     # llvm's integrated assembler supports .object_arch from llvm 3.5
5213     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5214 .object_arch armv4
5215 EOF
5216
5217     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5218
5219 elif enabled mips; then
5220
5221     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5222     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5223     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5224
5225     # Enable minimum ISA based on selected options
5226     if enabled mips64; then
5227         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5228         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5229         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5230     else
5231         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5232         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5233         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5234         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5235     fi
5236
5237     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5238     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5239     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5240     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5241     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5242
5243 elif enabled parisc; then
5244
5245     if enabled gcc; then
5246         case $($cc -dumpversion) in
5247             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5248         esac
5249     fi
5250
5251 elif enabled ppc; then
5252
5253     enable local_aligned_8 local_aligned_16 local_aligned_32
5254
5255     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5256     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5257     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5258     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5259
5260     # AltiVec flags: The FSF version of GCC differs from the Apple version
5261     if enabled altivec; then
5262         check_cflags -maltivec -mabi=altivec &&
5263         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5264         check_cflags -faltivec
5265
5266         # check if our compiler supports Motorola AltiVec C API
5267         check_cc <<EOF || disable altivec
5268 $inc_altivec_h
5269 int main(void) {
5270     vector signed int v1 = (vector signed int) { 0 };
5271     vector signed int v2 = (vector signed int) { 1 };
5272     v1 = vec_add(v1, v2);
5273     return 0;
5274 }
5275 EOF
5276
5277         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5278     fi
5279
5280     if enabled vsx; then
5281         check_cflags -mvsx &&
5282         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5283     fi
5284
5285     if enabled power8; then
5286         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5287     fi
5288
5289 elif enabled x86; then
5290
5291     check_builtin rdtsc    intrin.h   "__rdtsc()"
5292     check_builtin mm_empty mmintrin.h "_mm_empty()"
5293
5294     enable local_aligned_8 local_aligned_16 local_aligned_32
5295
5296     # check whether EBP is available on x86
5297     # As 'i' is stored on the stack, this program will crash
5298     # if the base pointer is used to access it because the
5299     # base pointer is cleared in the inline assembly code.
5300     check_exec_crash <<EOF && enable ebp_available
5301 volatile int i=0;
5302 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5303 return i;
5304 EOF
5305
5306     # check whether EBX is available on x86
5307     check_inline_asm ebx_available '""::"b"(0)' &&
5308         check_inline_asm ebx_available '"":::"%ebx"'
5309
5310     # check whether xmm clobbers are supported
5311     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5312
5313     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5314         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5315
5316     # check whether binutils is new enough to compile SSSE3/MMXEXT
5317     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5318     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5319
5320     if ! disabled_any asm mmx yasm; then
5321         if check_cmd $yasmexe --version; then
5322             enabled x86_64 && yasm_extra="-m amd64"
5323             yasm_debug="-g dwarf2"
5324         elif check_cmd nasm -v; then
5325             yasmexe=nasm
5326             yasm_debug="-g -F dwarf"
5327             if enabled x86_64; then
5328                 case "$objformat" in
5329                     elf)   objformat=elf64 ;;
5330                     win32) objformat=win64 ;;
5331                 esac
5332             fi
5333         fi
5334
5335         YASMFLAGS="-f $objformat $yasm_extra"
5336         enabled pic               && append YASMFLAGS "-DPIC"
5337         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5338         case "$objformat" in
5339             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5340         esac
5341
5342         check_yasm "movbe ecx, [5]" && enable yasm ||
5343             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5344         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5345         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5346         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5347         check_yasm "CPU amdnop" || disable cpunop
5348     fi
5349
5350     case "$cpu" in
5351         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5352             disable fast_clz
5353         ;;
5354     esac
5355
5356 fi
5357
5358 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5359
5360 check_ldflags -Wl,--as-needed
5361 check_ldflags -Wl,-z,noexecstack
5362
5363 if check_func dlopen; then
5364     ldl=
5365 elif check_func dlopen -ldl; then
5366     ldl=-ldl
5367 fi
5368
5369 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5370 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5371 frei0r_filter_extralibs='$ldl'
5372 frei0r_src_filter_extralibs='$ldl'
5373 ladspa_filter_extralibs='$ldl'
5374 nvenc_encoder_extralibs='$ldl'
5375 coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5376 coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5377
5378 if ! disabled network; then
5379     check_func getaddrinfo $network_extralibs
5380     check_func inet_aton $network_extralibs
5381
5382     check_type netdb.h "struct addrinfo"
5383     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5384     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5385     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5386     check_type poll.h "struct pollfd"
5387     check_type netinet/sctp.h "struct sctp_event_subscribe"
5388     check_struct "sys/socket.h" "struct msghdr" msg_flags
5389     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5390     check_type netinet/in.h "struct sockaddr_in6"
5391     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5392     check_type "sys/types.h sys/socket.h" socklen_t
5393
5394     # Prefer arpa/inet.h over winsock2
5395     if check_header arpa/inet.h ; then
5396         check_func closesocket
5397     elif check_header winsock2.h ; then
5398         check_func_headers winsock2.h closesocket -lws2 &&
5399             network_extralibs="-lws2" ||
5400         { check_func_headers winsock2.h closesocket -lws2_32 &&
5401             network_extralibs="-lws2_32"; } || disable winsock2_h network
5402         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5403
5404         check_type ws2tcpip.h socklen_t
5405         check_type ws2tcpip.h "struct addrinfo"
5406         check_type ws2tcpip.h "struct group_source_req"
5407         check_type ws2tcpip.h "struct ip_mreq_source"
5408         check_type ws2tcpip.h "struct ipv6_mreq"
5409         check_type winsock2.h "struct pollfd"
5410         check_struct winsock2.h "struct sockaddr" sa_len
5411         check_type ws2tcpip.h "struct sockaddr_in6"
5412         check_type ws2tcpip.h "struct sockaddr_storage"
5413     else
5414         disable network
5415     fi
5416 fi
5417
5418 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5419 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5420 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5421 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5422 check_builtin sarestart signal.h "SA_RESTART"
5423 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5424 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5425 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5426 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5427 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5428
5429 case "$custom_allocator" in
5430     jemalloc)
5431         # jemalloc by default does not use a prefix
5432         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5433     ;;
5434     tcmalloc)
5435         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5436         malloc_prefix=tc_
5437     ;;
5438 esac
5439
5440 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5441 check_func  ${malloc_prefix}memalign            && enable memalign
5442 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5443
5444 check_func  access
5445 check_func  arc4random
5446 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5447 check_func  fcntl
5448 check_func  fork
5449 check_func  gethrtime
5450 check_func  getopt
5451 check_func  getrusage
5452 check_func  gettimeofday
5453 check_func  isatty
5454 check_func  mach_absolute_time
5455 check_func  mkstemp
5456 check_func  mmap
5457 check_func  mprotect
5458 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5459 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5460 check_func  sched_getaffinity
5461 check_func  setrlimit
5462 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5463 check_func  strerror_r
5464 check_func  sysconf
5465 check_func  sysctl
5466 check_func  usleep
5467
5468 check_func_headers conio.h kbhit
5469 check_func_headers io.h setmode
5470 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5471 check_func_headers stdlib.h getenv
5472 check_func_headers sys/stat.h lstat
5473
5474 check_func_headers windows.h CoTaskMemFree -lole32
5475 check_func_headers windows.h GetProcessAffinityMask
5476 check_func_headers windows.h GetProcessTimes
5477 check_func_headers windows.h GetSystemTimeAsFileTime
5478 check_func_headers windows.h MapViewOfFile
5479 check_func_headers windows.h PeekNamedPipe
5480 check_func_headers windows.h SetConsoleTextAttribute
5481 check_func_headers windows.h SetConsoleCtrlHandler
5482 check_func_headers windows.h Sleep
5483 check_func_headers windows.h VirtualAlloc
5484 check_struct windows.h "CONDITION_VARIABLE" Ptr
5485 check_func_headers glob.h glob
5486 enabled xlib &&
5487     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5488
5489 check_header AudioToolbox/AudioToolbox.h
5490 check_header direct.h
5491 check_header dirent.h
5492 check_header dlfcn.h
5493 check_header d3d11.h
5494 check_header dxva.h
5495 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5496 check_header io.h
5497 check_header libcrystalhd/libcrystalhd_if.h
5498 check_header mach/mach_time.h
5499 check_header malloc.h
5500 check_header net/udplite.h
5501 check_header poll.h
5502 check_header sys/mman.h
5503 check_header sys/param.h
5504 check_header sys/resource.h
5505 check_header sys/select.h
5506 check_header sys/time.h
5507 check_header sys/un.h
5508 check_header termios.h
5509 check_header unistd.h
5510 check_header valgrind/valgrind.h
5511 check_header vdpau/vdpau.h
5512 check_header vdpau/vdpau_x11.h
5513 check_header VideoDecodeAcceleration/VDADecoder.h
5514 check_header VideoToolbox/VideoToolbox.h
5515 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5516 enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo
5517 check_header windows.h
5518 check_header X11/extensions/XvMClib.h
5519 check_header asm/types.h
5520
5521 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5522 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5523 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5524 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5525
5526 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5527
5528 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5529 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5530 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5531 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5532 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5533
5534 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5535 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5536 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5537 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5538 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5539 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5540
5541 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5542
5543 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
5544 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
5545 check_type "cuviddec.h" "CUVIDVC1PICPARAMS"
5546 check_type "cuviddec.h" "CUVIDVP9PICPARAMS"
5547
5548 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5549
5550 if ! disabled w32threads && ! enabled pthreads; then
5551     check_func_headers "windows.h process.h" _beginthreadex &&
5552         enable w32threads || disable w32threads
5553     if ! enabled w32threads && enabled winrt; then
5554         check_func_headers "windows.h" CreateThread &&
5555             enable w32threads || disable w32threads
5556     fi
5557 fi
5558
5559 # check for some common methods of building with pthread support
5560 # do this before the optional library checks as some of them require pthreads
5561 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5562     enable pthreads
5563     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5564         add_cflags -pthread
5565         add_extralibs -pthread
5566     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5567         add_cflags -pthreads
5568         add_extralibs -pthreads
5569     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5570         add_cflags -ldl -pthread
5571         add_extralibs -ldl -pthread
5572     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5573         add_extralibs -lpthreadGC2
5574     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5575         :
5576     elif ! check_func pthread_join && ! check_func pthread_create; then
5577         disable pthreads
5578     fi
5579     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5580 fi
5581
5582
5583 if enabled pthreads; then
5584   check_func pthread_cancel
5585 fi
5586
5587 enabled pthreads &&
5588     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
5589
5590 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5591 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5592 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5593
5594 check_lib math.h sin -lm && LIBM="-lm"
5595 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5596
5597 atan2f_args=2
5598 copysign_args=2
5599 hypot_args=2
5600 ldexpf_args=2
5601 powf_args=2
5602
5603 for func in $MATH_FUNCS; do
5604     eval check_mathfunc $func \${${func}_args:-1}
5605 done
5606
5607 for func in $COMPLEX_FUNCS; do
5608     eval check_complexfunc $func \${${func}_args:-1}
5609 done
5610
5611 # Enable CUVID by default if CUDA is enabled
5612 if enabled cuda && ! disabled cuvid; then
5613     enable cuvid
5614 fi
5615
5616 # these are off by default, so fail if requested and not available
5617 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5618 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5619                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5620 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5621                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5622                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5623 enabled cuda              && { check_lib cuda.h cuInit -lcuda ||
5624                                die "ERROR: CUDA not found"; }
5625 enabled cuvid             && { check_lib cuviddec.h cuvidCreateDecoder -lnvcuvid ||
5626                                die "ERROR: CUVID not found"; } &&
5627                              { enabled cuda ||
5628                                die "ERROR: CUVID requires CUDA"; }
5629 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5630 enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
5631 enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
5632 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5633 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5634 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5635 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5636 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&
5637                                check_lib2 "dlfcn.h" dlopen -ldl; }
5638 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5639 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5640 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5641 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5642 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5643 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5644                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5645                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5646 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5647 enabled libebur128        && require ebur128 ebur128.h ebur128_relative_threshold -lebur128
5648 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5649 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5650                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5651                                  warn "using libfdk without pkg-config"; } }
5652 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"
5653 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5654 enabled fontconfig        && enable libfontconfig
5655 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5656 enabled libfreetype       && require_libfreetype
5657 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5658 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5659 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5660                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5661                                done || die "ERROR: libgsm not found"; }
5662 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5663 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5664 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5665 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5666 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5667 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5668 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
5669 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5670 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5671 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5672                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
5673                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5674                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
5675 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5676 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5677                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5678                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5679                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5680                                die "ERROR: libopenjpeg not found"; }
5681 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5682 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5683 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5684 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5685 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5686 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5687 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5688                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5689 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5690 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5691 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5692 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5693 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5694 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5695 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5696                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5697                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5698 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5699 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5700 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5701 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5702
5703 enabled libvpx            && {
5704     enabled libvpx_vp8_decoder && {
5705         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5706             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5707                 die "ERROR: libvpx decoder version must be >=0.9.1";
5708     }
5709     enabled libvpx_vp8_encoder && {
5710         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5711             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5712                 die "ERROR: libvpx encoder version must be >=0.9.7";
5713     }
5714     enabled libvpx_vp9_decoder && {
5715         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5716             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5717                 disable libvpx_vp9_decoder;
5718     }
5719     enabled libvpx_vp9_encoder && {
5720         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5721             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5722                 disable libvpx_vp9_encoder;
5723     }
5724     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5725         die "libvpx enabled but no supported decoders found"
5726     fi
5727 }
5728
5729 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5730 enabled libwebp           && {
5731     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5732     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5733 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5734                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5735                                  warn "using libx264 without pkg-config"; } } &&
5736                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5737                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5738                              { check_cpp_condition x264.h "X264_MPEG2" &&
5739                                enable libx262; }
5740 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5741                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||
5742                                die "ERROR: libx265 version must be >= 68."; }
5743 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5744 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5745 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5746 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5747 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
5748                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
5749                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
5750 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
5751 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5752                                 { ! enabled cross_compile && {
5753                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5754                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5755                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5756                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5757                                die "ERROR: mmal not found"; }
5758 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
5759
5760 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5761 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5762                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
5763                                die "ERROR: NVENC API version 5 or older is not supported"; } &&
5764                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5765 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5766                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5767                                die "ERROR: openal not found"; } &&
5768                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5769                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5770 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5771                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5772                                die "ERROR: opencl not found"; } &&
5773                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5774                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5775                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5776 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5777                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5778                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5779                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5780                                die "ERROR: opengl not found."
5781                              }
5782 enabled omx_rpi && enable omx
5783 enabled omx               && { check_header OMX_Core.h ||
5784                                 { ! enabled cross_compile && enabled omx_rpi && {
5785                                     add_cflags -isystem/opt/vc/include/IL ; }
5786                                 check_header OMX_Core.h ; } ||
5787                                die "ERROR: OpenMAX IL headers not found"; }
5788 enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||
5789                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5790                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5791                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5792                                die "ERROR: openssl not found"; }
5793 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5794
5795 # libdc1394 check
5796 if enabled libdc1394; then
5797     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5798         enable libdc1394_2; } ||
5799     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5800         enable libdc1394_1; } ||
5801     die "ERROR: No version of libdc1394 found "
5802 fi
5803
5804 if enabled gcrypt; then
5805     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5806     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5807         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5808         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5809         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5810             die "ERROR: gcrypt not found"
5811         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5812     else
5813         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5814     fi
5815 fi
5816
5817 if ! disabled sdl; then
5818     SDL_CONFIG="${cross_prefix}sdl-config"
5819     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5820         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5821         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5822         enable sdl
5823     else
5824         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5825             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5826             sdl_libs=$("${SDL_CONFIG}" --libs)
5827             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5828             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5829             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5830             enable sdl
5831         elif enabled sdl ; then
5832             die "ERROR: SDL not found"
5833         else
5834             disable sdl
5835         fi
5836     fi
5837     if test $target_os = "mingw32"; then
5838         sdl_libs="$sdl_libs -mconsole"
5839     fi
5840 fi
5841 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5842
5843 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5844     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5845     enable securetransport; }
5846
5847 disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
5848                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }
5849
5850 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5851 enabled makeinfo \
5852     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5853     && enable makeinfo_html || disable makeinfo_html
5854 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5855 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5856 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5857 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5858
5859 check_header linux/fb.h
5860 check_header linux/videodev.h
5861 check_header linux/videodev2.h
5862 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5863
5864 check_header sys/videoio.h
5865 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5866
5867 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5868 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5869 # w32api 3.12 had it defined wrong
5870 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5871
5872 check_type "dshow.h" IBaseFilter
5873
5874 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5875 { check_header dev/bktr/ioctl_meteor.h &&
5876   check_header dev/bktr/ioctl_bt848.h; } ||
5877 { check_header machine/ioctl_meteor.h &&
5878   check_header machine/ioctl_bt848.h; } ||
5879 { check_header dev/video/meteor/ioctl_meteor.h &&
5880   check_header dev/video/bktr/ioctl_bt848.h; } ||
5881 check_header dev/ic/bt8xx.h
5882
5883 check_header sndio.h
5884 if check_struct sys/soundcard.h audio_buf_info bytes; then
5885     enable_safe sys/soundcard.h
5886 else
5887     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5888     #include <sys/soundcard.h>
5889     audio_buf_info abc;
5890 EOF
5891 fi
5892 check_header soundcard.h
5893
5894 enabled_any alsa_indev alsa_outdev &&
5895     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5896
5897 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
5898     check_func jack_port_get_latency_range -ljack
5899
5900 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5901
5902 if enabled libcdio; then
5903     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5904     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5905     die "ERROR: No usable libcdio/cdparanoia found"
5906 fi
5907
5908 enabled xlib &&
5909     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5910
5911 if ! disabled libxcb; then
5912     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5913         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5914     } && disable x11grab && enable libxcb
5915
5916 if enabled libxcb; then
5917     disabled libxcb_shm || {
5918         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5919             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5920         } && check_header sys/shm.h && enable libxcb_shm; }
5921
5922     disabled libxcb_xfixes || {
5923         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5924             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5925         } && enable libxcb_xfixes; }
5926
5927     disabled libxcb_shape || {
5928         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5929             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5930         } && enable libxcb_shape; }
5931
5932     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5933     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5934 fi
5935 fi
5936
5937 if enabled x11grab; then
5938     enabled xlib || die "ERROR: Xlib not found"
5939     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5940     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5941 fi
5942
5943 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5944
5945 enabled dxva2api_h &&
5946     check_cc <<EOF && enable dxva2api_cobj
5947 #define _WIN32_WINNT 0x0600
5948 #define COBJMACROS
5949 #include <windows.h>
5950 #include <d3d9.h>
5951 #include <dxva2api.h>
5952 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5953 EOF
5954
5955 enabled vaapi &&
5956     check_lib va/va.h vaInitialize -lva ||
5957     disable vaapi
5958
5959 enabled vaapi &&
5960     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
5961     disable vaapi
5962
5963 if enabled vaapi ; then
5964     enabled xlib &&
5965     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5966     enable vaapi_x11
5967
5968     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
5969     enable vaapi_drm
5970 fi
5971
5972 enabled vdpau &&
5973     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5974     disable vdpau
5975
5976 enabled vdpau && enabled xlib &&
5977     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5978     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5979     enable vdpau_x11
5980
5981 # Funny iconv installations are not unusual, so check it after all flags have been set
5982 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5983
5984 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5985
5986 # add some useful compiler flags if supported
5987 check_cflags -Wdeclaration-after-statement
5988 check_cflags -Wall
5989 check_cflags -Wdisabled-optimization
5990 check_cflags -Wpointer-arith
5991 check_cflags -Wredundant-decls
5992 check_cflags -Wwrite-strings
5993 check_cflags -Wtype-limits
5994 check_cflags -Wundef
5995 check_cflags -Wmissing-prototypes
5996 check_cflags -Wno-pointer-to-int-cast
5997 check_cflags -Wstrict-prototypes
5998 check_cflags -Wempty-body
5999 enabled extra_warnings && check_cflags -Winline
6000 enabled extra_warnings && check_cflags -Wcast-qual
6001
6002 check_disable_warning(){
6003     warning_flag=-W${1#-Wno-}
6004     test_cflags $warning_flag && add_cflags $1
6005 }
6006
6007 check_disable_warning -Wno-parentheses
6008 check_disable_warning -Wno-switch
6009 check_disable_warning -Wno-format-zero-length
6010 check_disable_warning -Wno-pointer-sign
6011 check_disable_warning -Wno-unused-const-variable
6012
6013 # add some linker flags
6014 check_ldflags -Wl,--warn-common
6015 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6016 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
6017 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
6018 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6019
6020 # add some strip flags
6021 # -wN '..@*' is more selective than -x, but not available everywhere.
6022 check_stripflags -wN \'..@*\' || check_stripflags -x
6023
6024 enabled neon_clobber_test &&
6025     check_ldflags -Wl,--wrap,avcodec_open2              \
6026                   -Wl,--wrap,avcodec_decode_audio4      \
6027                   -Wl,--wrap,avcodec_decode_video2      \
6028                   -Wl,--wrap,avcodec_decode_subtitle2   \
6029                   -Wl,--wrap,avcodec_encode_audio2      \
6030                   -Wl,--wrap,avcodec_encode_video2      \
6031                   -Wl,--wrap,avcodec_encode_subtitle    \
6032                   -Wl,--wrap,swr_convert                \
6033                   -Wl,--wrap,avresample_convert ||
6034     disable neon_clobber_test
6035
6036 enabled xmm_clobber_test &&
6037     check_ldflags -Wl,--wrap,avcodec_open2              \
6038                   -Wl,--wrap,avcodec_decode_audio4      \
6039                   -Wl,--wrap,avcodec_decode_video2      \
6040                   -Wl,--wrap,avcodec_decode_subtitle2   \
6041                   -Wl,--wrap,avcodec_encode_audio2      \
6042                   -Wl,--wrap,avcodec_encode_video2      \
6043                   -Wl,--wrap,avcodec_encode_subtitle    \
6044                   -Wl,--wrap,swr_convert                \
6045                   -Wl,--wrap,avresample_convert         \
6046                   -Wl,--wrap,sws_scale ||
6047     disable xmm_clobber_test
6048
6049 echo "X { local: *; };" > $TMPV
6050 if test_ldflags -Wl,--version-script,$TMPV; then
6051     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
6052 elif test_ldflags -Wl,-M,$TMPV; then
6053     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
6054 fi
6055
6056 check_cc <<EOF && enable symver_asm_label
6057 void ff_foo(void) __asm__ ("av_foo@VERSION");
6058 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6059 EOF
6060     check_cc <<EOF && enable symver_gnu_asm
6061 __asm__(".symver ff_foo,av_foo@VERSION");
6062 void ff_foo(void) {}
6063 EOF
6064
6065 if [ -z "$optflags" ]; then
6066     if enabled small; then
6067         optflags=$cflags_size
6068     elif enabled optimizations; then
6069         optflags=$cflags_speed
6070     else
6071         optflags=$cflags_noopt
6072     fi
6073 fi
6074
6075 check_optflags(){
6076     check_cflags "$@"
6077     enabled lto && check_ldflags "$@"
6078 }
6079
6080
6081 if enabled lto; then
6082     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6083     check_cflags  -flto
6084     check_ldflags -flto $cpuflags
6085     disable inline_asm_direct_symbol_refs
6086 fi
6087
6088 check_optflags $optflags
6089 check_optflags -fno-math-errno
6090 check_optflags -fno-signed-zeros
6091
6092 enabled ftrapv && check_cflags -ftrapv
6093
6094 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6095 int x;
6096 EOF
6097
6098
6099 if enabled icc; then
6100     # Just warnings, no remarks
6101     check_cflags -w1
6102     # -wd: Disable following warnings
6103     # 144, 167, 556: -Wno-pointer-sign
6104     # 188: enumerated type mixed with another type
6105     # 1292: attribute "foo" ignored
6106     # 1419: external declaration in primary source file
6107     # 10006: ignoring unknown option -fno-signed-zeros
6108     # 10148: ignoring unknown option -Wno-parentheses
6109     # 10156: ignoring option '-W'; no argument required
6110     # 13200: No EMMS instruction before call to function
6111     # 13203: No EMMS instruction before return from function
6112     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6113     # 11030: Warning unknown option --as-needed
6114     # 10156: ignoring option '-export'; no argument required
6115     check_ldflags -wd10156,11030
6116     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6117     enable ebp_available
6118     # The test above does not test linking
6119     enabled lto && disable symver_asm_label
6120     if enabled x86_32; then
6121         icc_version=$($cc -dumpversion)
6122         test ${icc_version%%.*} -ge 11 &&
6123             check_cflags -falign-stack=maintain-16-byte ||
6124             disable aligned_stack
6125     fi
6126 elif enabled ccc; then
6127     # disable some annoying warnings
6128     add_cflags -msg_disable bitnotint
6129     add_cflags -msg_disable mixfuncvoid
6130     add_cflags -msg_disable nonstandcast
6131     add_cflags -msg_disable unsupieee
6132 elif enabled gcc; then
6133     case $gcc_basever in
6134         4.9*) enabled x86 || check_optflags -fno-tree-vectorize ;;
6135         4.*)                 check_optflags -fno-tree-vectorize ;;
6136         *)    enabled x86 || check_optflags -fno-tree-vectorize ;;
6137     esac
6138     check_cflags -Werror=format-security
6139     check_cflags -Werror=implicit-function-declaration
6140     check_cflags -Werror=missing-prototypes
6141     check_cflags -Werror=return-type
6142     check_cflags -Werror=vla
6143     check_cflags -Wformat
6144     check_cflags -fdiagnostics-color=auto
6145     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6146 elif enabled llvm_gcc; then
6147     check_cflags -mllvm -stack-alignment=16
6148 elif enabled clang; then
6149     check_cflags -mllvm -stack-alignment=16
6150     check_cflags -Qunused-arguments
6151     check_cflags -Werror=implicit-function-declaration
6152     check_cflags -Werror=missing-prototypes
6153     check_cflags -Werror=return-type
6154 elif enabled cparser; then
6155     add_cflags -Wno-missing-variable-declarations
6156     add_cflags -Wno-empty-statement
6157 elif enabled armcc; then
6158     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6159     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6160     # 2523: use of inline assembly is deprecated
6161     add_cflags -W${armcc_opt},--diag_suppress=2523
6162     add_cflags -W${armcc_opt},--diag_suppress=1207
6163     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6164     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6165     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6166     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6167 elif enabled tms470; then
6168     add_cflags -pds=824 -pds=837
6169     disable inline_asm
6170 elif enabled pathscale; then
6171     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6172 elif enabled_any msvc icl; then
6173     enabled x86_32 && disable aligned_stack
6174     enabled_all x86_32 debug && add_cflags -Oy-
6175     enabled debug && add_ldflags -debug
6176     enable pragma_deprecated
6177     if enabled icl; then
6178         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6179         # (correctly) on icl 13.x.
6180         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6181             add_cflags -Qansi-alias
6182         # Some inline asm is not compilable in debug
6183         if enabled debug; then
6184             disable ebp_available
6185             disable ebx_available
6186         fi
6187     fi
6188     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6189     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6190     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6191     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6192     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6193     # MSVC 2013 and newer can handle it fine.
6194     # If this declspec fails, force including stdlib.h before the restrict redefinition
6195     # happens in config.h.
6196     if [ $_restrict != restrict ]; then
6197         check_cc <<EOF || add_cflags -FIstdlib.h
6198 __declspec($_restrict) void* foo(int);
6199 EOF
6200     fi
6201     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
6202 fi
6203
6204 for pfx in "" host_; do
6205     varname=${pfx%_}cc_type
6206     eval "type=\$$varname"
6207     if [ $type = "msvc" ]; then
6208         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6209 static inline int foo(int a) { return a; }
6210 EOF
6211     fi
6212 done
6213
6214 case $as_type in
6215     clang)
6216         add_asflags -Qunused-arguments
6217     ;;
6218 esac
6219
6220 case $ld_type in
6221     clang)
6222         check_ldflags -Qunused-arguments
6223     ;;
6224 esac
6225
6226 case $target_os in
6227     osf1)
6228         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6229     ;;
6230     plan9)
6231         add_cppflags -Dmain=plan9_main
6232     ;;
6233 esac
6234
6235 enable frame_thread_encoder
6236
6237 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6238
6239 check_deps $CONFIG_LIST       \
6240            $CONFIG_EXTRA      \
6241            $HAVE_LIST         \
6242            $ALL_COMPONENTS    \
6243
6244 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"
6245
6246
6247 if test $target_os = "haiku"; then
6248     disable memalign
6249     disable posix_memalign
6250 fi
6251
6252 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6253     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6254     enable dxva2_lib
6255
6256 ! enabled_any memalign posix_memalign aligned_malloc &&
6257     enabled simd_align_16 && enable memalign_hack
6258
6259 # add_dep lib dep
6260 # -> enable ${lib}_deps_${dep}
6261 # -> add $dep to ${lib}_deps only once
6262 add_dep() {
6263     lib=$1
6264     dep=$2
6265     enabled "${lib}_deps_${dep}" && return 0
6266     enable  "${lib}_deps_${dep}"
6267     prepend "${lib}_deps" $dep
6268 }
6269
6270 # merge deps lib components
6271 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6272 merge_deps() {
6273     lib=$1
6274     shift
6275     for comp in $*; do
6276         enabled $comp || continue
6277         eval "dep=\"\$${comp}_deps\""
6278         for d in $dep; do
6279             add_dep $lib $d
6280         done
6281     done
6282 }
6283
6284 merge_deps libavfilter $FILTER_LIST
6285
6286 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6287
6288 for thread in $THREADS_LIST; do
6289     if enabled $thread; then
6290         test -n "$thread_type" &&
6291             die "ERROR: Only one thread type must be selected." ||
6292             thread_type="$thread"
6293     fi
6294 done
6295
6296 enabled zlib && add_cppflags -DZLIB_CONST
6297
6298 # conditional library dependencies, in linking order
6299 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6300 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6301 enabled aresample_filter    && prepend avfilter_deps "swresample"
6302 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6303 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6304 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6305 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6306 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6307 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6308 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6309 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6310 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6311 enabled pan_filter          && prepend avfilter_deps "swresample"
6312 enabled pp_filter           && prepend avfilter_deps "postproc"
6313 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6314 enabled resample_filter && prepend avfilter_deps "avresample"
6315 enabled sab_filter          && prepend avfilter_deps "swscale"
6316 enabled scale_filter    && prepend avfilter_deps "swscale"
6317 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6318 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6319 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6320 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6321 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6322 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6323 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6324 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6325 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6326
6327 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6328
6329 enabled opus_decoder    && prepend avcodec_deps "swresample"
6330
6331 expand_deps(){
6332     lib_deps=${1}_deps
6333     eval "deps=\$$lib_deps"
6334     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6335     unique $lib_deps
6336 }
6337
6338 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6339 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6340
6341 map 'expand_deps $v' $LIBRARY_LIST
6342
6343 echo "install prefix            $prefix"
6344 echo "source path               $source_path"
6345 echo "C compiler                $cc"
6346 echo "C library                 $libc_type"
6347 if test "$host_cc" != "$cc"; then
6348     echo "host C compiler           $host_cc"
6349     echo "host C library            $host_libc_type"
6350 fi
6351 echo "ARCH                      $arch ($cpu)"
6352 if test "$build_suffix" != ""; then
6353     echo "build suffix              $build_suffix"
6354 fi
6355 if test "$progs_suffix" != ""; then
6356     echo "progs suffix              $progs_suffix"
6357 fi
6358 if test "$extra_version" != ""; then
6359     echo "version string suffix     $extra_version"
6360 fi
6361 echo "big-endian                ${bigendian-no}"
6362 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6363 if enabled x86; then
6364     echo "${yasmexe}                      ${yasm-no}"
6365     echo "MMX enabled               ${mmx-no}"
6366     echo "MMXEXT enabled            ${mmxext-no}"
6367     echo "3DNow! enabled            ${amd3dnow-no}"
6368     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6369     echo "SSE enabled               ${sse-no}"
6370     echo "SSSE3 enabled             ${ssse3-no}"
6371     echo "AESNI enabled             ${aesni-no}"
6372     echo "AVX enabled               ${avx-no}"
6373     echo "XOP enabled               ${xop-no}"
6374     echo "FMA3 enabled              ${fma3-no}"
6375     echo "FMA4 enabled              ${fma4-no}"
6376     echo "i686 features enabled     ${i686-no}"
6377     echo "CMOV is fast              ${fast_cmov-no}"
6378     echo "EBX available             ${ebx_available-no}"
6379     echo "EBP available             ${ebp_available-no}"
6380 fi
6381 if enabled aarch64; then
6382     echo "NEON enabled              ${neon-no}"
6383     echo "VFP enabled               ${vfp-no}"
6384 fi
6385 if enabled arm; then
6386     echo "ARMv5TE enabled           ${armv5te-no}"
6387     echo "ARMv6 enabled             ${armv6-no}"
6388     echo "ARMv6T2 enabled           ${armv6t2-no}"
6389     echo "VFP enabled               ${vfp-no}"
6390     echo "NEON enabled              ${neon-no}"
6391     echo "THUMB enabled             ${thumb-no}"
6392 fi
6393 if enabled mips; then
6394     echo "MIPS FPU enabled          ${mipsfpu-no}"
6395     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6396     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6397     echo "MIPS MSA enabled          ${msa-no}"
6398     echo "LOONGSON MMI enabled      ${mmi-no}"
6399 fi
6400 if enabled ppc; then
6401     echo "AltiVec enabled           ${altivec-no}"
6402     echo "VSX enabled               ${vsx-no}"
6403     echo "POWER8 enabled            ${power8-no}"
6404     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6405     echo "dcbzl available           ${dcbzl-no}"
6406 fi
6407 echo "debug symbols             ${debug-no}"
6408 echo "strip symbols             ${stripping-no}"
6409 echo "optimize for size         ${small-no}"
6410 echo "optimizations             ${optimizations-no}"
6411 echo "static                    ${static-no}"
6412 echo "shared                    ${shared-no}"
6413 echo "postprocessing support    ${postproc-no}"
6414 echo "new filter support        ${avfilter-no}"
6415 echo "network support           ${network-no}"
6416 echo "threading support         ${thread_type-no}"
6417 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6418 echo "SDL support               ${sdl-no}"
6419 echo "opencl enabled            ${opencl-no}"
6420 echo "JNI support               ${jni-no}"
6421 echo "texi2html enabled         ${texi2html-no}"
6422 echo "perl enabled              ${perl-no}"
6423 echo "pod2man enabled           ${pod2man-no}"
6424 echo "makeinfo enabled          ${makeinfo-no}"
6425 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6426 test -n "$random_seed" &&
6427     echo "random seed               ${random_seed}"
6428 echo
6429
6430 echo "Enabled programs:"
6431 print_enabled '' $PROGRAM_LIST | print_in_columns
6432 echo
6433
6434 echo "External libraries:"
6435 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6436 echo
6437
6438 echo "Libraries:"
6439 print_enabled '' $LIBRARY_LIST | print_in_columns
6440 echo
6441
6442 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6443     echo "Enabled ${type}s:"
6444     eval list=\$$(toupper $type)_LIST
6445     print_enabled '_*' $list | print_in_columns
6446     echo
6447 done
6448
6449 echo "Enabled Hardware-accelerated codecs:"
6450 print_enabled '' $HW_CODECS_LIST | print_in_columns
6451 echo
6452
6453 license="LGPL version 2.1 or later"
6454 if enabled nonfree; then
6455     license="nonfree and unredistributable"
6456 elif enabled gplv3; then
6457     license="GPL version 3 or later"
6458 elif enabled lgplv3; then
6459     license="LGPL version 3 or later"
6460 elif enabled gpl; then
6461     license="GPL version 2 or later"
6462 fi
6463
6464 echo "License: $license"
6465
6466 echo "Creating config.mak, config.h, and doc/config.texi..."
6467
6468 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6469
6470 enabled stripping || strip="echo skipping strip"
6471
6472 config_files="$TMPH config.mak doc/config.texi"
6473
6474 cat > config.mak <<EOF
6475 # Automatically generated by configure - do not modify!
6476 ifndef FFMPEG_CONFIG_MAK
6477 FFMPEG_CONFIG_MAK=1
6478 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6479 prefix=$prefix
6480 LIBDIR=\$(DESTDIR)$libdir
6481 SHLIBDIR=\$(DESTDIR)$shlibdir
6482 INCDIR=\$(DESTDIR)$incdir
6483 BINDIR=\$(DESTDIR)$bindir
6484 DATADIR=\$(DESTDIR)$datadir
6485 DOCDIR=\$(DESTDIR)$docdir
6486 MANDIR=\$(DESTDIR)$mandir
6487 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6488 INSTALL_NAME_DIR=$install_name_dir
6489 SRC_PATH=$source_path
6490 SRC_LINK=$source_link
6491 ifndef MAIN_MAKEFILE
6492 SRC_PATH:=\$(SRC_PATH:.%=..%)
6493 endif
6494 CC_IDENT=$cc_ident
6495 ARCH=$arch
6496 INTRINSICS=$intrinsics
6497 CC=$cc
6498 CXX=$cxx
6499 AS=$as
6500 OBJCC=$objcc
6501 LD=$ld
6502 DEPCC=$dep_cc
6503 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6504 DEPAS=$as
6505 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6506 YASM=$yasmexe
6507 DEPYASM=$yasmexe
6508 AR=$ar
6509 ARFLAGS=$arflags
6510 AR_O=$ar_o
6511 RANLIB=$ranlib
6512 STRIP=$strip
6513 CP=cp -p
6514 LN_S=$ln_s
6515 CPPFLAGS=$CPPFLAGS
6516 CFLAGS=$CFLAGS
6517 CXXFLAGS=$CXXFLAGS
6518 OBJCFLAGS=$OBJCFLAGS
6519 ASFLAGS=$ASFLAGS
6520 AS_C=$AS_C
6521 AS_O=$AS_O
6522 OBJCC_C=$OBJCC_C
6523 OBJCC_E=$OBJCC_E
6524 OBJCC_O=$OBJCC_O
6525 CC_C=$CC_C
6526 CC_E=$CC_E
6527 CC_O=$CC_O
6528 CXX_C=$CXX_C
6529 CXX_O=$CXX_O
6530 LD_O=$LD_O
6531 LD_LIB=$LD_LIB
6532 LD_PATH=$LD_PATH
6533 DLLTOOL=$dlltool
6534 WINDRES=$windres
6535 DEPWINDRES=$dep_cc
6536 DOXYGEN=$doxygen
6537 LDFLAGS=$LDFLAGS
6538 LDEXEFLAGS=$LDEXEFLAGS
6539 LDLIBFLAGS=$LDLIBFLAGS
6540 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6541 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6542 YASMFLAGS=$YASMFLAGS
6543 BUILDSUF=$build_suffix
6544 PROGSSUF=$progs_suffix
6545 FULLNAME=$FULLNAME
6546 LIBPREF=$LIBPREF
6547 LIBSUF=$LIBSUF
6548 LIBNAME=$LIBNAME
6549 SLIBPREF=$SLIBPREF
6550 SLIBSUF=$SLIBSUF
6551 EXESUF=$EXESUF
6552 EXTRA_VERSION=$extra_version
6553 CCDEP=$CCDEP
6554 CXXDEP=$CXXDEP
6555 CCDEP_FLAGS=$CCDEP_FLAGS
6556 ASDEP=$ASDEP
6557 ASDEP_FLAGS=$ASDEP_FLAGS
6558 CC_DEPFLAGS=$CC_DEPFLAGS
6559 AS_DEPFLAGS=$AS_DEPFLAGS
6560 HOSTCC=$host_cc
6561 HOSTLD=$host_ld
6562 HOSTCFLAGS=$host_cflags
6563 HOSTCPPFLAGS=$host_cppflags
6564 HOSTEXESUF=$HOSTEXESUF
6565 HOSTLDFLAGS=$host_ldflags
6566 HOSTLIBS=$host_libs
6567 DEPHOSTCC=$host_cc
6568 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6569 HOSTCCDEP=$HOSTCCDEP
6570 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6571 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6572 HOSTCC_C=$HOSTCC_C
6573 HOSTCC_O=$HOSTCC_O
6574 HOSTLD_O=$HOSTLD_O
6575 TARGET_EXEC=$target_exec $target_exec_args
6576 TARGET_PATH=$target_path
6577 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6578 CFLAGS-ffplay=$sdl_cflags
6579 ZLIB=$($ldflags_filter -lz)
6580 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6581 EXTRALIBS=$extralibs
6582 COMPAT_OBJS=$compat_objs
6583 EXEOBJS=$exeobjs
6584 INSTALL=$install
6585 LIBTARGET=${LIBTARGET}
6586 SLIBNAME=${SLIBNAME}
6587 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6588 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6589 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6590 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6591 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6592 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6593 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6594 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6595 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6596 NOREDZONE_FLAGS=$noredzone_flags
6597 EOF
6598
6599 get_version(){
6600     lcname=lib${1}
6601     name=$(toupper $lcname)
6602     file=$source_path/$lcname/version.h
6603     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6604     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6605     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6606     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6607     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6608     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6609 }
6610
6611 map 'get_version $v' $LIBRARY_LIST
6612
6613 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6614
6615 print_program_libs(){
6616     eval "program_libs=\$${1}_libs"
6617     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6618 }
6619
6620 map 'print_program_libs $v' $PROGRAM_LIST
6621
6622 cat > $TMPH <<EOF
6623 /* Automatically generated by configure - do not modify! */
6624 #ifndef FFMPEG_CONFIG_H
6625 #define FFMPEG_CONFIG_H
6626 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6627 #define FFMPEG_LICENSE "$(c_escape $license)"
6628 #define CONFIG_THIS_YEAR 2016
6629 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6630 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6631 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6632 #define av_restrict $_restrict
6633 #define EXTERN_PREFIX "${extern_prefix}"
6634 #define EXTERN_ASM ${extern_prefix}
6635 #define BUILDSUF "$build_suffix"
6636 #define SLIBSUF "$SLIBSUF"
6637 #define HAVE_MMX2 HAVE_MMXEXT
6638 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6639 EOF
6640
6641 test -n "$assert_level" &&
6642     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6643
6644 test -n "$malloc_prefix" &&
6645     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6646
6647 if enabled yasm; then
6648     append config_files $TMPASM
6649     printf '' >$TMPASM
6650 fi
6651
6652 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6653
6654
6655 mkdir -p doc
6656 mkdir -p tests
6657 mkdir -p tests/api
6658 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6659
6660 print_config ARCH_   "$config_files" $ARCH_LIST
6661 print_config HAVE_   "$config_files" $HAVE_LIST
6662 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6663                                      $CONFIG_EXTRA      \
6664                                      $ALL_COMPONENTS    \
6665
6666 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6667 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6668
6669 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6670 cp_if_changed $TMPH config.h
6671 touch .config
6672
6673 enabled yasm && cp_if_changed $TMPASM config.asm
6674
6675 cat > $TMPH <<EOF
6676 /* Generated by ffconf */
6677 #ifndef AVUTIL_AVCONFIG_H
6678 #define AVUTIL_AVCONFIG_H
6679 EOF
6680
6681 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6682
6683 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6684
6685 cp_if_changed $TMPH libavutil/avconfig.h
6686
6687 if test -n "$WARNINGS"; then
6688     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6689     enabled fatal_warnings && exit 1
6690 fi
6691
6692 # generate the lists of enabled components
6693 print_enabled_components(){
6694     file=$1
6695     struct_name=$2
6696     name=$3
6697     shift 3
6698     echo "static const $struct_name *$name[] = {" > $TMPH
6699     for c in $*; do
6700         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
6701     done
6702     echo "    NULL };" >> $TMPH
6703     cp_if_changed $TMPH $file
6704 }
6705
6706 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
6707 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
6708
6709 # build pkg-config files
6710
6711 lib_version(){
6712     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6713 }
6714
6715 pkgconfig_generate(){
6716     name=$1
6717     shortname=${name#lib}${build_suffix}
6718     comment=$2
6719     version=$3
6720     libs=$4
6721     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6722     requires=${requires%, }
6723     enabled ${name#lib} || return 0
6724     mkdir -p $name
6725     cat <<EOF > $name/$name${build_suffix}.pc
6726 prefix=$prefix
6727 exec_prefix=\${prefix}
6728 libdir=$libdir
6729 includedir=$incdir
6730
6731 Name: $name
6732 Description: $comment
6733 Version: $version
6734 Requires: $(enabled shared || echo $requires)
6735 Requires.private: $(enabled shared && echo $requires)
6736 Conflicts:
6737 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6738 Libs.private: $(enabled shared && echo $libs)
6739 Cflags: -I\${includedir}
6740 EOF
6741
6742 mkdir -p doc/examples/pc-uninstalled
6743 includedir=${source_path}
6744 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6745     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6746 prefix=
6747 exec_prefix=
6748 libdir=\${pcfiledir}/../../../$name
6749 includedir=${includedir}
6750
6751 Name: $name
6752 Description: $comment
6753 Version: $version
6754 Requires: $requires
6755 Conflicts:
6756 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6757 Cflags: -I\${includedir}
6758 EOF
6759 }
6760
6761 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6762 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6763 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6764 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6765 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6766 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6767 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6768 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6769 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"