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
  95 Licensing options:
  96   --enable-gpl             allow use of GPL code, the resulting libs
  97                            and binaries will be under GPL [no]
  98   --enable-version3        upgrade (L)GPL to version 3 [no]
  99   --enable-nonfree         allow use of nonfree code, the resulting libs
 100                            and binaries will be unredistributable [no]
 101
 102 Configuration options:
 103   --disable-static         do not build static libraries [no]
 104   --enable-shared          build shared libraries [no]
 105   --enable-small           optimize for size instead of speed
 106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 107   --enable-gray            enable full grayscale support (slower color)
 108   --disable-swscale-alpha  disable alpha channel support in swscale
 109   --disable-all            disable building components, libraries and programs
 110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 111   --enable-raise-major     increase major version numbers in sonames [no]
 112
 113 Program options:
 114   --disable-programs       do not build command line programs
 115   --disable-ffmpeg         disable ffmpeg build
 116   --disable-ffplay         disable ffplay build
 117   --disable-ffprobe        disable ffprobe build
 118   --disable-ffserver       disable ffserver build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Hardware accelerators:
 152   --disable-d3d11va        disable D3D11VA code [autodetect]
 153   --disable-dxva2          disable DXVA2 code [autodetect]
 154   --disable-vaapi          disable VAAPI code [autodetect]
 155   --disable-vda            disable VDA code [autodetect]
 156   --disable-vdpau          disable VDPAU code [autodetect]
 157   --enable-videotoolbox    enable VideoToolbox code [autodetect]
 158
 159 Individual component options:
 160   --disable-everything     disable all components listed below
 161   --disable-encoder=NAME   disable encoder NAME
 162   --enable-encoder=NAME    enable encoder NAME
 163   --disable-encoders       disable all encoders
 164   --disable-decoder=NAME   disable decoder NAME
 165   --enable-decoder=NAME    enable decoder NAME
 166   --disable-decoders       disable all decoders
 167   --disable-hwaccel=NAME   disable hwaccel NAME
 168   --enable-hwaccel=NAME    enable hwaccel NAME
 169   --disable-hwaccels       disable all hwaccels
 170   --disable-muxer=NAME     disable muxer NAME
 171   --enable-muxer=NAME      enable muxer NAME
 172   --disable-muxers         disable all muxers
 173   --disable-demuxer=NAME   disable demuxer NAME
 174   --enable-demuxer=NAME    enable demuxer NAME
 175   --disable-demuxers       disable all demuxers
 176   --enable-parser=NAME     enable parser NAME
 177   --disable-parser=NAME    disable parser NAME
 178   --disable-parsers        disable all parsers
 179   --enable-bsf=NAME        enable bitstream filter NAME
 180   --disable-bsf=NAME       disable bitstream filter NAME
 181   --disable-bsfs           disable all bitstream filters
 182   --enable-protocol=NAME   enable protocol NAME
 183   --disable-protocol=NAME  disable protocol NAME
 184   --disable-protocols      disable all protocols
 185   --enable-indev=NAME      enable input device NAME
 186   --disable-indev=NAME     disable input device NAME
 187   --disable-indevs         disable input devices
 188   --enable-outdev=NAME     enable output device NAME
 189   --disable-outdev=NAME    disable output device NAME
 190   --disable-outdevs        disable output devices
 191   --disable-devices        disable all devices
 192   --enable-filter=NAME     enable filter NAME
 193   --disable-filter=NAME    disable filter NAME
 194   --disable-filters        disable all filters
 195
 196 External library support:
 197   --enable-avisynth        enable reading of AviSynth script files [no]
 198   --disable-bzlib          disable bzlib [autodetect]
 199   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
 201   --enable-frei0r          enable frei0r video filtering [no]
 202   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 203                            if openssl, librtmp or gmp is not used [no]
 204   --enable-gmp             enable gmp, needed for rtmp(t)e support
 205                            if openssl or librtmp is not used [no]
 206   --enable-gnutls          enable gnutls, needed for https support
 207                            if openssl is not used [no]
 208   --disable-iconv          disable iconv [autodetect]
 209   --enable-ladspa          enable LADSPA audio filtering [no]
 210   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 211   --enable-libass          enable libass subtitles rendering,
 212                            needed for subtitles and ass filter [no]
 213   --enable-libbluray       enable BluRay reading using libbluray [no]
 214   --enable-libbs2b         enable bs2b DSP library [no]
 215   --enable-libcaca         enable textual display using libcaca [no]
 216   --enable-libcelt         enable CELT decoding via libcelt [no]
 217   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 218   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 219                            and libraw1394 [no]
 220   --enable-libdcadec       enable DCA decoding via libdcadec [no]
 221   --enable-libfaac         enable AAC encoding via libfaac [no]
 222   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 223   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 224   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 225   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 226   --enable-libgme          enable Game Music Emu via libgme [no]
 227   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 228   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 229   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 230   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 231   --enable-libmfx          enable HW acceleration through libmfx
 232   --enable-libmodplug      enable ModPlug via libmodplug [no]
 233   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 234   --enable-libnut          enable NUT (de)muxing via libnut,
 235                            native (de)muxer exists [no]
 236   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 237   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 238   --enable-libopencv       enable video filtering via libopencv [no]
 239   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 240   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 241   --enable-libopus         enable Opus de/encoding via libopus [no]
 242   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 243   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 244   --enable-libquvi         enable quvi input via libquvi [no]
 245   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 246   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 247   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 248   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 249   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 250   --enable-libsoxr         enable Include libsoxr resampling [no]
 251   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 252   --enable-libssh          enable SFTP protocol via libssh [no]
 253   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 255   --enable-libtheora       enable Theora encoding via libtheora [no]
 256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 257   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 259   --enable-libvidstab      enable video stabilization using vid.stab [no]
 260   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 261   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 262   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 263                            native implementation exists [no]
 264   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 265   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 266   --enable-libwebp         enable WebP encoding via libwebp [no]
 267   --enable-libx264         enable H.264 encoding via x264 [no]
 268   --enable-libx265         enable HEVC encoding via x265 [no]
 269   --enable-libxavs         enable AVS encoding via xavs [no]
 270   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 271   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 272   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 273   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 274   --enable-libxvid         enable Xvid encoding via xvidcore,
 275                            native MPEG-4/Xvid encoder exists [no]
 276   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 277   --enable-libzmq          enable message passing via libzmq [no]
 278   --enable-libzvbi         enable teletext support via libzvbi [no]
 279   --disable-lzma           disable lzma [autodetect]
 280   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 281   --enable-mmal            enable decoding via MMAL [no]
 282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 283   --enable-nvenc           enable NVIDIA NVENC support [no]
 284   --enable-openal          enable OpenAL 1.1 capture support [no]
 285   --enable-opencl          enable OpenCL code
 286   --enable-opengl          enable OpenGL rendering [no]
 287   --enable-openssl         enable openssl, needed for https support
 288                            if gnutls is not used [no]
 289   --disable-schannel       disable SChannel SSP, needed for TLS support on
 290                            Windows if openssl and gnutls are not used [autodetect]
 291   --disable-sdl            disable sdl [autodetect]
 292   --disable-securetransport disable Secure Transport, needed for TLS support
 293                            on OSX if openssl and gnutls are not used [autodetect]
 294   --enable-x11grab         enable X11 grabbing (legacy) [no]
 295   --disable-xlib           disable xlib [autodetect]
 296   --disable-zlib           disable zlib [autodetect]
 297
 298 Toolchain options:
 299   --arch=ARCH              select architecture [$arch]
 300   --cpu=CPU                select the minimum required CPU (affects
 301                            instruction selection, may crash on older CPUs)
 302   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 303   --progs-suffix=SUFFIX    program name suffix []
 304   --enable-cross-compile   assume a cross-compiler is used
 305   --sysroot=PATH           root of cross-build tree
 306   --sysinclude=PATH        location of cross-build system headers
 307   --target-os=OS           compiler targets OS [$target_os]
 308   --target-exec=CMD        command to run executables on target
 309   --target-path=DIR        path to view of build directory on target
 310   --target-samples=DIR     path to samples directory on target
 311   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 312   --toolchain=NAME         set tool defaults according to NAME
 313   --nm=NM                  use nm tool NM [$nm_default]
 314   --ar=AR                  use archive tool AR [$ar_default]
 315   --as=AS                  use assembler AS [$as_default]
 316   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 317   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 318   --cc=CC                  use C compiler CC [$cc_default]
 319   --cxx=CXX                use C compiler CXX [$cxx_default]
 320   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 321   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 322   --ld=LD                  use linker LD [$ld_default]
 323   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 324   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 325   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 326   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 327   --host-cc=HOSTCC         use host C compiler HOSTCC
 328   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 329   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 330   --host-ld=HOSTLD         use host linker HOSTLD
 331   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 332   --host-libs=HLIBS        use libs HLIBS when linking for host
 333   --host-os=OS             compiler host OS [$target_os]
 334   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 335   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 336   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 337   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 338   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 339   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 340   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 341   --extra-version=STRING   version string suffix []
 342   --optflags=OPTFLAGS      override optimization-related compiler flags
 343   --build-suffix=SUFFIX    library name suffix []
 344   --enable-pic             build position-independent code
 345   --enable-thumb           compile for Thumb instruction set
 346   --enable-lto             use link-time optimization
 347   --env="ENV=override"     override the environment variables
 348
 349 Advanced options (experts only):
 350   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 351   --custom-allocator=NAME  use a supported custom allocator
 352   --disable-symver         disable symbol versioning
 353   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 354   --disable-safe-bitstream-reader
 355                            disable buffer boundary checking in bitreaders
 356                            (faster, but may crash)
 357   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 358   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 359
 360 Optimization options (experts only):
 361   --disable-asm            disable all assembly optimizations
 362   --disable-altivec        disable AltiVec optimizations
 363   --disable-vsx            disable VSX optimizations
 364   --disable-power8         disable POWER8 optimizations
 365   --disable-amd3dnow       disable 3DNow! optimizations
 366   --disable-amd3dnowext    disable 3DNow! extended optimizations
 367   --disable-mmx            disable MMX optimizations
 368   --disable-mmxext         disable MMXEXT optimizations
 369   --disable-sse            disable SSE optimizations
 370   --disable-sse2           disable SSE2 optimizations
 371   --disable-sse3           disable SSE3 optimizations
 372   --disable-ssse3          disable SSSE3 optimizations
 373   --disable-sse4           disable SSE4 optimizations
 374   --disable-sse42          disable SSE4.2 optimizations
 375   --disable-avx            disable AVX optimizations
 376   --disable-xop            disable XOP optimizations
 377   --disable-fma3           disable FMA3 optimizations
 378   --disable-fma4           disable FMA4 optimizations
 379   --disable-avx2           disable AVX2 optimizations
 380   --disable-aesni          disable AESNI optimizations
 381   --disable-armv5te        disable armv5te optimizations
 382   --disable-armv6          disable armv6 optimizations
 383   --disable-armv6t2        disable armv6t2 optimizations
 384   --disable-vfp            disable VFP optimizations
 385   --disable-neon           disable NEON optimizations
 386   --disable-inline-asm     disable use of inline assembly
 387   --disable-yasm           disable use of nasm/yasm assembly
 388   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 389   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 390   --disable-msa            disable MSA optimizations
 391   --disable-mipsfpu        disable floating point MIPS optimizations
 392   --disable-mmi            disable Loongson SIMD optimizations
 393   --disable-fast-unaligned consider unaligned accesses slow
 394
 395 Developer options (useful when working on FFmpeg itself):
 396   --disable-debug          disable debugging symbols
 397   --enable-debug=LEVEL     set the debug level [$debuglevel]
 398   --disable-optimizations  disable compiler optimizations
 399   --enable-extra-warnings  enable more compiler warnings
 400   --disable-stripping      disable stripping of executables and shared libraries
 401   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 402                            2 causes a slowdown at runtime.
 403   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 404   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 405                            leaks and errors, using the specified valgrind binary.
 406                            Cannot be combined with --target-exec
 407   --enable-ftrapv          Trap arithmetic overflows
 408   --samples=PATH           location of test samples for FATE, if not set use
 409                            \$FATE_SAMPLES at make invocation time.
 410   --enable-neon-clobber-test check NEON registers for clobbering (should be
 411                            used only for debugging purposes)
 412   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 413                            should be used only for debugging purposes)
 414   --enable-random          randomly enable/disable components
 415   --disable-random
 416   --enable-random=LIST     randomly enable/disable specific components or
 417   --disable-random=LIST    component groups. LIST is a comma-separated list
 418                            of NAME[:PROB] entries where NAME is a component
 419                            (group) and PROB the probability associated with
 420                            NAME (default 0.5).
 421   --random-seed=VALUE      seed value for --enable/disable-random
 422   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 423                            (only applies to --disable-optimizations builds)
 424
 425 NOTE: Object files are built at the place where configure is launched.
 426 EOF
 427   exit 0
 428 }
 429
 430 quotes='""'
 431 if test -t 1 && which tput >/dev/null 2>&1; then
 432     ncolors=$(tput colors)
 433     if test -n "$ncolors" && test $ncolors -ge 8; then
 434         bold_color=$(tput bold)
 435         warn_color=$(tput setaf 3)
 436         error_color=$(tput setaf 1)
 437         reset_color=$(tput sgr0)
 438     fi
 439     # 72 used instead of 80 since that's the default of pr
 440     ncols=$(tput cols)
 441 fi
 442 : ${ncols:=72}
 443
 444 log(){
 445     echo "$@" >> $logfile
 446 }
 447
 448 log_file(){
 449     log BEGIN $1
 450     pr -n -t $1 >> $logfile
 451     log END $1
 452 }
 453
 454 warn(){
 455     log "WARNING: $*"
 456     WARNINGS="${WARNINGS}WARNING: $*\n"
 457 }
 458
 459 die(){
 460     log "$@"
 461     echo "$error_color$bold_color$@$reset_color"
 462     cat <<EOF
 463
 464 If you think configure made a mistake, make sure you are using the latest
 465 version from Git.  If the latest version fails, report the problem to the
 466 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 467 EOF
 468     if disabled logging; then
 469         cat <<EOF
 470 Rerun configure with logging enabled (do not use --disable-logging), and
 471 include the log this produces with your report.
 472 EOF
 473     else
 474         cat <<EOF
 475 Include the log file "$logfile" produced by configure as this will help
 476 solve the problem.
 477 EOF
 478     fi
 479     exit 1
 480 }
 481
 482 # Avoid locale weirdness, besides we really just want to translate ASCII.
 483 toupper(){
 484     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 485 }
 486
 487 tolower(){
 488     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 489 }
 490
 491 c_escape(){
 492     echo "$*" | sed 's/["\\]/\\\0/g'
 493 }
 494
 495 sh_quote(){
 496     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 497     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 498     echo "$v"
 499 }
 500
 501 cleanws(){
 502     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 503 }
 504
 505 filter(){
 506     pat=$1
 507     shift
 508     for v; do
 509         eval "case $v in $pat) echo $v ;; esac"
 510     done
 511 }
 512
 513 filter_out(){
 514     pat=$1
 515     shift
 516     for v; do
 517         eval "case $v in $pat) ;; *) echo $v ;; esac"
 518     done
 519 }
 520
 521 map(){
 522     m=$1
 523     shift
 524     for v; do eval $m; done
 525 }
 526
 527 add_suffix(){
 528     suffix=$1
 529     shift
 530     for v; do echo ${v}${suffix}; done
 531 }
 532
 533 set_all(){
 534     value=$1
 535     shift
 536     for var in $*; do
 537         eval $var=$value
 538     done
 539 }
 540
 541 set_weak(){
 542     value=$1
 543     shift
 544     for var; do
 545         eval : \${$var:=$value}
 546     done
 547 }
 548
 549 sanitize_var_name(){
 550     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 551 }
 552
 553 set_safe(){
 554     var=$1
 555     shift
 556     eval $(sanitize_var_name "$var")='$*'
 557 }
 558
 559 get_safe(){
 560     eval echo \$$(sanitize_var_name "$1")
 561 }
 562
 563 pushvar(){
 564     for pvar in $*; do
 565         eval level=\${${pvar}_level:=0}
 566         eval ${pvar}_${level}="\$$pvar"
 567         eval ${pvar}_level=$(($level+1))
 568     done
 569 }
 570
 571 popvar(){
 572     for pvar in $*; do
 573         eval level=\${${pvar}_level:-0}
 574         test $level = 0 && continue
 575         eval level=$(($level-1))
 576         eval $pvar="\${${pvar}_${level}}"
 577         eval ${pvar}_level=$level
 578         eval unset ${pvar}_${level}
 579     done
 580 }
 581
 582 enable(){
 583     set_all yes $*
 584 }
 585
 586 disable(){
 587     set_all no $*
 588 }
 589
 590 enable_weak(){
 591     set_weak yes $*
 592 }
 593
 594 disable_weak(){
 595     set_weak no $*
 596 }
 597
 598 enable_safe(){
 599     for var; do
 600         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 601     done
 602 }
 603
 604 disable_safe(){
 605     for var; do
 606         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 607     done
 608 }
 609
 610 do_enable_deep(){
 611     for var; do
 612         enabled $var && continue
 613         eval sel="\$${var}_select"
 614         eval sgs="\$${var}_suggest"
 615         pushvar var sgs
 616         enable_deep $sel
 617         popvar sgs
 618         enable_deep_weak $sgs
 619         popvar var
 620     done
 621 }
 622
 623 enable_deep(){
 624     do_enable_deep $*
 625     enable $*
 626 }
 627
 628 enable_deep_weak(){
 629     for var; do
 630         disabled $var && continue
 631         pushvar var
 632         do_enable_deep $var
 633         popvar var
 634         enable_weak $var
 635     done
 636 }
 637
 638 enabled(){
 639     test "${1#!}" = "$1" && op='=' || op=!=
 640     eval test "x\$${1#!}" $op "xyes"
 641 }
 642
 643 disabled(){
 644     test "${1#!}" = "$1" && op='=' || op=!=
 645     eval test "x\$${1#!}" $op "xno"
 646 }
 647
 648 enabled_all(){
 649     for opt; do
 650         enabled $opt || return 1
 651     done
 652 }
 653
 654 disabled_all(){
 655     for opt; do
 656         disabled $opt || return 1
 657     done
 658 }
 659
 660 enabled_any(){
 661     for opt; do
 662         enabled $opt && return 0
 663     done
 664 }
 665
 666 disabled_any(){
 667     for opt; do
 668         disabled $opt && return 0
 669     done
 670     return 1
 671 }
 672
 673 set_default(){
 674     for opt; do
 675         eval : \${$opt:=\$${opt}_default}
 676     done
 677 }
 678
 679 is_in(){
 680     value=$1
 681     shift
 682     for var in $*; do
 683         [ $var = $value ] && return 0
 684     done
 685     return 1
 686 }
 687
 688 do_check_deps(){
 689     for cfg; do
 690         cfg="${cfg#!}"
 691         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 692         disabled ${cfg}_checking && continue
 693         enable ${cfg}_checking
 694         append allopts $cfg
 695
 696         eval dep_all="\$${cfg}_deps"
 697         eval dep_any="\$${cfg}_deps_any"
 698         eval dep_sel="\$${cfg}_select"
 699         eval dep_sgs="\$${cfg}_suggest"
 700         eval dep_ifa="\$${cfg}_if"
 701         eval dep_ifn="\$${cfg}_if_any"
 702
 703         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 704         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 705         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 706
 707         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 708         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 709         enabled_all  $dep_all || disable $cfg
 710         enabled_any  $dep_any || disable $cfg
 711         disabled_any $dep_sel && disable $cfg
 712
 713         if enabled $cfg; then
 714             enable_deep $dep_sel
 715             enable_deep_weak $dep_sgs
 716         fi
 717
 718         disable ${cfg}_checking
 719     done
 720 }
 721
 722 check_deps(){
 723     unset allopts
 724
 725     do_check_deps "$@"
 726
 727     for cfg in $allopts; do
 728         enabled $cfg || continue
 729         eval dep_extralibs="\$${cfg}_extralibs"
 730         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 731     done
 732 }
 733
 734 print_config(){
 735     pfx=$1
 736     files=$2
 737     shift 2
 738     map 'eval echo "$v \${$v:-no}"' "$@" |
 739     awk "BEGIN { split(\"$files\", files) }
 740         {
 741             c = \"$pfx\" toupper(\$1);
 742             v = \$2;
 743             sub(/yes/, 1, v);
 744             sub(/no/,  0, v);
 745             for (f in files) {
 746                 file = files[f];
 747                 if (file ~ /\\.h\$/) {
 748                     printf(\"#define %s %d\\n\", c, v) >>file;
 749                 } else if (file ~ /\\.asm\$/) {
 750                     printf(\"%%define %s %d\\n\", c, v) >>file;
 751                 } else if (file ~ /\\.mak\$/) {
 752                     n = -v ? \"\" : \"!\";
 753                     printf(\"%s%s=yes\\n\", n, c) >>file;
 754                 } else if (file ~ /\\.texi\$/) {
 755                     pre = -v ? \"\" : \"@c \";
 756                     yesno = \$2;
 757                     c2 = tolower(c);
 758                     gsub(/_/, \"-\", c2);
 759                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 760                 }
 761             }
 762         }"
 763 }
 764
 765 print_enabled(){
 766     suf=$1
 767     shift
 768     for v; do
 769         enabled $v && printf "%s\n" ${v%$suf};
 770     done
 771 }
 772
 773 append(){
 774     var=$1
 775     shift
 776     eval "$var=\"\$$var $*\""
 777 }
 778
 779 prepend(){
 780     var=$1
 781     shift
 782     eval "$var=\"$* \$$var\""
 783 }
 784
 785 unique(){
 786     var=$1
 787     uniq_list=""
 788     for tok in $(eval echo \$$var); do
 789         uniq_list="$(filter_out $tok $uniq_list) $tok"
 790     done
 791     eval "$var=\"${uniq_list}\""
 792 }
 793
 794 add_cppflags(){
 795     append CPPFLAGS "$@"
 796 }
 797
 798 add_cflags(){
 799     append CFLAGS $($cflags_filter "$@")
 800 }
 801
 802 add_cxxflags(){
 803     append CXXFLAGS $($cflags_filter "$@")
 804 }
 805
 806 add_asflags(){
 807     append ASFLAGS $($asflags_filter "$@")
 808 }
 809
 810 add_objcflags(){
 811     append OBJCFLAGS $($objcflags_filter "$@")
 812 }
 813
 814 add_ldflags(){
 815     append LDFLAGS $($ldflags_filter "$@")
 816 }
 817
 818 add_ldexeflags(){
 819     append LDEXEFLAGS $($ldflags_filter "$@")
 820 }
 821
 822 add_ldlibflags(){
 823     append LDLIBFLAGS $($ldflags_filter "$@")
 824 }
 825
 826 add_stripflags(){
 827     append ASMSTRIPFLAGS "$@"
 828 }
 829
 830 add_extralibs(){
 831     prepend extralibs $($ldflags_filter "$@")
 832 }
 833
 834 add_host_cppflags(){
 835     append host_cppflags "$@"
 836 }
 837
 838 add_host_cflags(){
 839     append host_cflags $($host_cflags_filter "$@")
 840 }
 841
 842 add_host_ldflags(){
 843     append host_ldflags $($host_ldflags_filter "$@")
 844 }
 845
 846 add_compat(){
 847     append compat_objs $1
 848     shift
 849     map 'add_cppflags -D$v' "$@"
 850 }
 851
 852 check_cmd(){
 853     log "$@"
 854     "$@" >> $logfile 2>&1
 855 }
 856
 857 check_stat(){
 858     log check_stat "$@"
 859     stat "$1" >> $logfile 2>&1
 860 }
 861
 862 cc_o(){
 863     eval printf '%s\\n' $CC_O
 864 }
 865
 866 cc_e(){
 867     eval printf '%s\\n' $CC_E
 868 }
 869
 870 check_cc(){
 871     log check_cc "$@"
 872     cat > $TMPC
 873     log_file $TMPC
 874     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 875 }
 876
 877 check_cxx(){
 878     log check_cxx "$@"
 879     cat > $TMPCPP
 880     log_file $TMPCPP
 881     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 882 }
 883
 884 check_objcc(){
 885     log check_objcc "$@"
 886     cat > $TMPM
 887     log_file $TMPM
 888     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 889 }
 890
 891 check_cpp(){
 892     log check_cpp "$@"
 893     cat > $TMPC
 894     log_file $TMPC
 895     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 896 }
 897
 898 as_o(){
 899     eval printf '%s\\n' $AS_O
 900 }
 901
 902 check_as(){
 903     log check_as "$@"
 904     cat > $TMPS
 905     log_file $TMPS
 906     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 907 }
 908
 909 check_inline_asm(){
 910     log check_inline_asm "$@"
 911     name="$1"
 912     code="$2"
 913     shift 2
 914     disable $name
 915     check_cc "$@" <<EOF && enable $name
 916 void foo(void){ __asm__ volatile($code); }
 917 EOF
 918 }
 919
 920 check_insn(){
 921     log check_insn "$@"
 922     check_inline_asm ${1}_inline "\"$2\""
 923     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 924 }
 925
 926 check_yasm(){
 927     log check_yasm "$@"
 928     echo "$1" > $TMPS
 929     log_file $TMPS
 930     shift 1
 931     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 932 }
 933
 934 ld_o(){
 935     eval printf '%s\\n' $LD_O
 936 }
 937
 938 check_ld(){
 939     log check_ld "$@"
 940     type=$1
 941     shift 1
 942     flags=$(filter_out '-l*|*.so' $@)
 943     libs=$(filter '-l*|*.so' $@)
 944     check_$type $($cflags_filter $flags) || return
 945     flags=$($ldflags_filter $flags)
 946     libs=$($ldflags_filter $libs)
 947     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 948 }
 949
 950 print_include(){
 951     hdr=$1
 952     test "${hdr%.h}" = "${hdr}" &&
 953         echo "#include $hdr"    ||
 954         echo "#include <$hdr>"
 955 }
 956
 957 check_code(){
 958     log check_code "$@"
 959     check=$1
 960     headers=$2
 961     code=$3
 962     shift 3
 963     {
 964         for hdr in $headers; do
 965             print_include $hdr
 966         done
 967         echo "int main(void) { $code; return 0; }"
 968     } | check_$check "$@"
 969 }
 970
 971 check_cppflags(){
 972     log check_cppflags "$@"
 973     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 974 int x;
 975 EOF
 976 }
 977
 978 test_cflags(){
 979     log test_cflags "$@"
 980     set -- $($cflags_filter "$@")
 981     check_cc "$@" <<EOF
 982 int x;
 983 EOF
 984 }
 985
 986 check_cflags(){
 987     log check_cflags "$@"
 988     test_cflags "$@" && add_cflags "$@"
 989 }
 990
 991 check_cxxflags(){
 992     log check_cxxflags "$@"
 993     set -- $($cflags_filter "$@")
 994     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 995 int x;
 996 EOF
 997 }
 998
 999 test_objcflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_objcc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_objcflags(){
1008     log check_cflags "$@"
1009     test_objcflags "$@" && add_objcflags "$@"
1010 }
1011
1012 test_ldflags(){
1013     log test_ldflags "$@"
1014     check_ld "cc" "$@" <<EOF
1015 int main(void){ return 0; }
1016 EOF
1017 }
1018
1019 check_ldflags(){
1020     log check_ldflags "$@"
1021     test_ldflags "$@" && add_ldflags "$@"
1022 }
1023
1024 test_stripflags(){
1025     log test_stripflags "$@"
1026     # call check_cc to get a fresh TMPO
1027     check_cc <<EOF
1028 int main(void) { return 0; }
1029 EOF
1030     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1031 }
1032
1033 check_stripflags(){
1034     log check_stripflags "$@"
1035     test_stripflags "$@" && add_stripflags "$@"
1036 }
1037
1038 check_header(){
1039     log check_header "$@"
1040     header=$1
1041     shift
1042     disable_safe $header
1043     check_cpp "$@" <<EOF && enable_safe $header
1044 #include <$header>
1045 int x;
1046 EOF
1047 }
1048
1049 check_header_objcc(){
1050     log check_header_objcc "$@"
1051     rm -f -- "$TMPO"
1052     header=$1
1053     shift
1054     disable_safe $header
1055     {
1056        echo "#include <$header>"
1057        echo "int main(void) { return 0; }"
1058     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1059 }
1060
1061 check_func(){
1062     log check_func "$@"
1063     func=$1
1064     shift
1065     disable $func
1066     check_ld "cc" "$@" <<EOF && enable $func
1067 extern int $func();
1068 int main(void){ $func(); }
1069 EOF
1070 }
1071
1072 check_complexfunc(){
1073     log check_complexfunc "$@"
1074     func=$1
1075     narg=$2
1076     shift 2
1077     test $narg = 2 && args="f, g" || args="f * I"
1078     disable $func
1079     check_ld "cc" "$@" <<EOF && enable $func
1080 #include <complex.h>
1081 #include <math.h>
1082 float foo(complex float f, complex float g) { return $func($args); }
1083 int main(void){ return (int) foo; }
1084 EOF
1085 }
1086
1087 check_mathfunc(){
1088     log check_mathfunc "$@"
1089     func=$1
1090     narg=$2
1091     shift 2
1092     test $narg = 2 && args="f, g" || args="f"
1093     disable $func
1094     check_ld "cc" "$@" <<EOF && enable $func
1095 #include <math.h>
1096 float foo(float f, float g) { return $func($args); }
1097 int main(void){ return (int) foo; }
1098 EOF
1099 }
1100
1101 check_func_headers(){
1102     log check_func_headers "$@"
1103     headers=$1
1104     funcs=$2
1105     shift 2
1106     {
1107         for hdr in $headers; do
1108             print_include $hdr
1109         done
1110         for func in $funcs; do
1111             echo "long check_$func(void) { return (long) $func; }"
1112         done
1113         echo "int main(void) { return 0; }"
1114     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1115 }
1116
1117 check_class_headers_cpp(){
1118     log check_class_headers_cpp "$@"
1119     headers=$1
1120     classes=$2
1121     shift 2
1122     {
1123         for hdr in $headers; do
1124             echo "#include <$hdr>"
1125         done
1126         echo "int main(void) { "
1127         i=1
1128         for class in $classes; do
1129             echo "$class obj$i;"
1130             i=$(expr $i + 1)
1131         done
1132         echo "return 0; }"
1133     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1134 }
1135
1136 check_cpp_condition(){
1137     log check_cpp_condition "$@"
1138     header=$1
1139     condition=$2
1140     shift 2
1141     check_cpp "$@" <<EOF
1142 #include <$header>
1143 #if !($condition)
1144 #error "unsatisfied condition: $condition"
1145 #endif
1146 EOF
1147 }
1148
1149 check_lib(){
1150     log check_lib "$@"
1151     header="$1"
1152     func="$2"
1153     shift 2
1154     check_header $header && check_func $func "$@" && add_extralibs "$@"
1155 }
1156
1157 check_lib2(){
1158     log check_lib2 "$@"
1159     headers="$1"
1160     funcs="$2"
1161     shift 2
1162     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1163 }
1164
1165 check_lib_cpp(){
1166     log check_lib_cpp "$@"
1167     headers="$1"
1168     classes="$2"
1169     shift 2
1170     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1171 }
1172
1173 check_pkg_config(){
1174     log check_pkg_config "$@"
1175     pkgandversion="$1"
1176     pkg="${1%% *}"
1177     headers="$2"
1178     funcs="$3"
1179     shift 3
1180     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1181     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1182     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1183     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1184         set_safe "${pkg}_cflags" $pkg_cflags   &&
1185         set_safe "${pkg}_libs"   $pkg_libs
1186 }
1187
1188 check_exec(){
1189     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1190 }
1191
1192 check_exec_crash(){
1193     code=$(cat)
1194
1195     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1196     # are safe but may not be available everywhere.  Thus we use
1197     # raise(SIGTERM) instead.  The check is run in a subshell so we
1198     # can redirect the "Terminated" message from the shell.  SIGBUS
1199     # is not defined by standard C so it is used conditionally.
1200
1201     (check_exec "$@") >> $logfile 2>&1 <<EOF
1202 #include <signal.h>
1203 static void sighandler(int sig){
1204     raise(SIGTERM);
1205 }
1206 int foo(void){
1207     $code
1208 }
1209 int (*func_ptr)(void) = foo;
1210 int main(void){
1211     signal(SIGILL, sighandler);
1212     signal(SIGFPE, sighandler);
1213     signal(SIGSEGV, sighandler);
1214 #ifdef SIGBUS
1215     signal(SIGBUS, sighandler);
1216 #endif
1217     return func_ptr();
1218 }
1219 EOF
1220 }
1221
1222 check_type(){
1223     log check_type "$@"
1224     headers=$1
1225     type=$2
1226     shift 2
1227     disable_safe "$type"
1228     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1229 }
1230
1231 check_struct(){
1232     log check_struct "$@"
1233     headers=$1
1234     struct=$2
1235     member=$3
1236     shift 3
1237     disable_safe "${struct}_${member}"
1238     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1239         enable_safe "${struct}_${member}"
1240 }
1241
1242 check_builtin(){
1243     log check_builtin "$@"
1244     name=$1
1245     headers=$2
1246     builtin=$3
1247     shift 3
1248     disable "$name"
1249     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1250 }
1251
1252 check_compile_assert(){
1253     log check_compile_assert "$@"
1254     name=$1
1255     headers=$2
1256     condition=$3
1257     shift 3
1258     disable "$name"
1259     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1260 }
1261
1262 require(){
1263     name="$1"
1264     header="$2"
1265     func="$3"
1266     shift 3
1267     check_lib $header $func "$@" || die "ERROR: $name not found"
1268 }
1269
1270 require2(){
1271     name="$1"
1272     headers="$2"
1273     func="$3"
1274     shift 3
1275     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1276 }
1277
1278 require_cpp(){
1279     name="$1"
1280     headers="$2"
1281     classes="$3"
1282     shift 3
1283     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1284 }
1285
1286 use_pkg_config(){
1287     pkg="$1"
1288     check_pkg_config "$@" || return 1
1289     add_cflags    $(get_safe "${pkg}_cflags")
1290     add_extralibs $(get_safe "${pkg}_libs")
1291 }
1292
1293 require_pkg_config(){
1294     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1295 }
1296
1297 require_libfreetype(){
1298     log require_libfreetype "$@"
1299     pkg="freetype2"
1300     check_cmd $pkg_config --exists --print-errors $pkg \
1301       || die "ERROR: $pkg not found"
1302     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1303     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1304     {
1305         echo "#include <ft2build.h>"
1306         echo "#include FT_FREETYPE_H"
1307         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1308         echo "int main(void) { return 0; }"
1309     } | check_ld "cc" $pkg_cflags $pkg_libs \
1310       && set_safe "${pkg}_cflags" $pkg_cflags \
1311       && set_safe "${pkg}_libs"   $pkg_libs \
1312       || die "ERROR: $pkg not found"
1313     add_cflags    $(get_safe "${pkg}_cflags")
1314     add_extralibs $(get_safe "${pkg}_libs")
1315 }
1316
1317 hostcc_e(){
1318     eval printf '%s\\n' $HOSTCC_E
1319 }
1320
1321 hostcc_o(){
1322     eval printf '%s\\n' $HOSTCC_O
1323 }
1324
1325 check_host_cc(){
1326     log check_host_cc "$@"
1327     cat > $TMPC
1328     log_file $TMPC
1329     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1330 }
1331
1332 check_host_cpp(){
1333     log check_host_cpp "$@"
1334     cat > $TMPC
1335     log_file $TMPC
1336     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1337 }
1338
1339 check_host_cppflags(){
1340     log check_host_cppflags "$@"
1341     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1342 int x;
1343 EOF
1344 }
1345
1346 check_host_cflags(){
1347     log check_host_cflags "$@"
1348     set -- $($host_cflags_filter "$@")
1349     check_host_cc "$@" <<EOF && append host_cflags "$@"
1350 int x;
1351 EOF
1352 }
1353
1354 check_host_cpp_condition(){
1355     log check_host_cpp_condition "$@"
1356     header=$1
1357     condition=$2
1358     shift 2
1359     check_host_cpp "$@" <<EOF
1360 #include <$header>
1361 #if !($condition)
1362 #error "unsatisfied condition: $condition"
1363 #endif
1364 EOF
1365 }
1366
1367 cp_if_changed(){
1368     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1369     mkdir -p "$(dirname $2)"
1370     $cp_f "$1" "$2"
1371 }
1372
1373 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1374 # system-dependent things.
1375
1376 AVCODEC_COMPONENTS="
1377     bsfs
1378     decoders
1379     encoders
1380     hwaccels
1381     parsers
1382 "
1383
1384 AVDEVICE_COMPONENTS="
1385     indevs
1386     outdevs
1387 "
1388 AVFILTER_COMPONENTS="
1389     filters
1390 "
1391 AVFORMAT_COMPONENTS="
1392     demuxers
1393     muxers
1394     protocols
1395 "
1396
1397 AVRESAMPLE_COMPONENTS=""
1398 AVUTIL_COMPONENTS=""
1399
1400 COMPONENT_LIST="
1401     $AVCODEC_COMPONENTS
1402     $AVDEVICE_COMPONENTS
1403     $AVFILTER_COMPONENTS
1404     $AVFORMAT_COMPONENTS
1405     $AVRESAMPLE_COMPONENTS
1406     $AVUTIL_COMPONENTS
1407 "
1408
1409 EXAMPLE_LIST="
1410     avio_reading_example
1411     avio_dir_cmd_example
1412     decoding_encoding_example
1413     demuxing_decoding_example
1414     extract_mvs_example
1415     filter_audio_example
1416     filtering_audio_example
1417     filtering_video_example
1418     metadata_example
1419     muxing_example
1420     qsvdec_example
1421     remuxing_example
1422     resampling_audio_example
1423     scaling_video_example
1424     transcode_aac_example
1425     transcoding_example
1426 "
1427
1428 EXTERNAL_LIBRARY_LIST="
1429     avisynth
1430     bzlib
1431     chromaprint
1432     crystalhd
1433     decklink
1434     frei0r
1435     gcrypt
1436     gmp
1437     gnutls
1438     iconv
1439     ladspa
1440     libaacplus
1441     libass
1442     libbluray
1443     libbs2b
1444     libcaca
1445     libcdio
1446     libcelt
1447     libdc1394
1448     libdcadec
1449     libfaac
1450     libfdk_aac
1451     libflite
1452     libfontconfig
1453     libfreetype
1454     libfribidi
1455     libgme
1456     libgsm
1457     libiec61883
1458     libilbc
1459     libkvazaar
1460     libmfx
1461     libmodplug
1462     libmp3lame
1463     libnut
1464     libopencore_amrnb
1465     libopencore_amrwb
1466     libopencv
1467     libopenh264
1468     libopenjpeg
1469     libopus
1470     libpulse
1471     libquvi
1472     librtmp
1473     librubberband
1474     libschroedinger
1475     libshine
1476     libsmbclient
1477     libsnappy
1478     libsoxr
1479     libspeex
1480     libssh
1481     libstagefright_h264
1482     libtesseract
1483     libtheora
1484     libtwolame
1485     libutvideo
1486     libv4l2
1487     libvidstab
1488     libvo_aacenc
1489     libvo_amrwbenc
1490     libvorbis
1491     libvpx
1492     libwavpack
1493     libwebp
1494     libx264
1495     libx265
1496     libxavs
1497     libxcb
1498     libxcb_shm
1499     libxcb_shape
1500     libxcb_xfixes
1501     libxvid
1502     libzimg
1503     libzmq
1504     libzvbi
1505     lzma
1506     mmal
1507     netcdf
1508     nvenc
1509     openal
1510     opencl
1511     opengl
1512     openssl
1513     schannel
1514     sdl
1515     securetransport
1516     x11grab
1517     xlib
1518     zlib
1519 "
1520
1521 DOCUMENT_LIST="
1522     doc
1523     htmlpages
1524     manpages
1525     podpages
1526     txtpages
1527 "
1528
1529 FEATURE_LIST="
1530     ftrapv
1531     gray
1532     hardcoded_tables
1533     runtime_cpudetect
1534     safe_bitstream_reader
1535     shared
1536     small
1537     static
1538     swscale_alpha
1539 "
1540
1541 HWACCEL_LIST="
1542     d3d11va
1543     dxva2
1544     vaapi
1545     vda
1546     vdpau
1547     videotoolbox
1548     xvmc
1549 "
1550
1551 LIBRARY_LIST="
1552     avcodec
1553     avdevice
1554     avfilter
1555     avformat
1556     avresample
1557     avutil
1558     postproc
1559     swresample
1560     swscale
1561 "
1562
1563 LICENSE_LIST="
1564     gpl
1565     nonfree
1566     version3
1567 "
1568
1569 PROGRAM_LIST="
1570     ffplay
1571     ffprobe
1572     ffserver
1573     ffmpeg
1574 "
1575
1576 SUBSYSTEM_LIST="
1577     dct
1578     dwt
1579     error_resilience
1580     faan
1581     fast_unaligned
1582     fft
1583     lsp
1584     lzo
1585     mdct
1586     pixelutils
1587     network
1588     rdft
1589 "
1590
1591 CONFIG_LIST="
1592     $COMPONENT_LIST
1593     $DOCUMENT_LIST
1594     $EXAMPLE_LIST
1595     $EXTERNAL_LIBRARY_LIST
1596     $FEATURE_LIST
1597     $HWACCEL_LIST
1598     $LICENSE_LIST
1599     $LIBRARY_LIST
1600     $PROGRAM_LIST
1601     $SUBSYSTEM_LIST
1602     fontconfig
1603     incompatible_libav_abi
1604     memalign_hack
1605     memory_poisoning
1606     neon_clobber_test
1607     pic
1608     pod2man
1609     raise_major
1610     thumb
1611     valgrind_backtrace
1612     xmm_clobber_test
1613 "
1614
1615 THREADS_LIST="
1616     pthreads
1617     os2threads
1618     w32threads
1619 "
1620
1621 ATOMICS_LIST="
1622     atomics_gcc
1623     atomics_suncc
1624     atomics_win32
1625 "
1626
1627 ARCH_LIST="
1628     aarch64
1629     alpha
1630     arm
1631     avr32
1632     avr32_ap
1633     avr32_uc
1634     bfin
1635     ia64
1636     m68k
1637     mips
1638     mips64
1639     parisc
1640     ppc
1641     ppc64
1642     s390
1643     sh4
1644     sparc
1645     sparc64
1646     tilegx
1647     tilepro
1648     tomi
1649     x86
1650     x86_32
1651     x86_64
1652 "
1653
1654 ARCH_EXT_LIST_ARM="
1655     armv5te
1656     armv6
1657     armv6t2
1658     armv8
1659     neon
1660     vfp
1661     vfpv3
1662     setend
1663 "
1664
1665 ARCH_EXT_LIST_MIPS="
1666     mipsfpu
1667     mips32r2
1668     mips64r2
1669     mips32r6
1670     mips64r6
1671     mipsdsp
1672     mipsdspr2
1673     msa
1674 "
1675
1676 ARCH_EXT_LIST_LOONGSON="
1677     loongson2
1678     loongson3
1679     mmi
1680 "
1681
1682 ARCH_EXT_LIST_X86_SIMD="
1683     aesni
1684     amd3dnow
1685     amd3dnowext
1686     avx
1687     avx2
1688     fma3
1689     fma4
1690     mmx
1691     mmxext
1692     sse
1693     sse2
1694     sse3
1695     sse4
1696     sse42
1697     ssse3
1698     xop
1699 "
1700
1701 ARCH_EXT_LIST_PPC="
1702     altivec
1703     dcbzl
1704     ldbrx
1705     power8
1706     ppc4xx
1707     vsx
1708 "
1709
1710 ARCH_EXT_LIST_X86="
1711     $ARCH_EXT_LIST_X86_SIMD
1712     cpunop
1713     i686
1714 "
1715
1716 ARCH_EXT_LIST="
1717     $ARCH_EXT_LIST_ARM
1718     $ARCH_EXT_LIST_PPC
1719     $ARCH_EXT_LIST_X86
1720     $ARCH_EXT_LIST_MIPS
1721     $ARCH_EXT_LIST_LOONGSON
1722 "
1723
1724 ARCH_FEATURES="
1725     aligned_stack
1726     fast_64bit
1727     fast_clz
1728     fast_cmov
1729     local_aligned_8
1730     local_aligned_16
1731     local_aligned_32
1732     simd_align_16
1733 "
1734
1735 BUILTIN_LIST="
1736     atomic_cas_ptr
1737     atomic_compare_exchange
1738     machine_rw_barrier
1739     MemoryBarrier
1740     mm_empty
1741     rdtsc
1742     sarestart
1743     sync_val_compare_and_swap
1744 "
1745 HAVE_LIST_CMDLINE="
1746     inline_asm
1747     symver
1748     yasm
1749 "
1750
1751 HAVE_LIST_PUB="
1752     bigendian
1753     fast_unaligned
1754     incompatible_libav_abi
1755 "
1756
1757 HEADERS_LIST="
1758     alsa_asoundlib_h
1759     altivec_h
1760     arpa_inet_h
1761     asm_types_h
1762     cdio_paranoia_h
1763     cdio_paranoia_paranoia_h
1764     dev_bktr_ioctl_bt848_h
1765     dev_bktr_ioctl_meteor_h
1766     dev_ic_bt8xx_h
1767     dev_video_bktr_ioctl_bt848_h
1768     dev_video_meteor_ioctl_meteor_h
1769     direct_h
1770     dirent_h
1771     dlfcn_h
1772     d3d11_h
1773     dxva_h
1774     ES2_gl_h
1775     gsm_h
1776     io_h
1777     mach_mach_time_h
1778     machine_ioctl_bt848_h
1779     machine_ioctl_meteor_h
1780     malloc_h
1781     openjpeg_2_1_openjpeg_h
1782     openjpeg_2_0_openjpeg_h
1783     openjpeg_1_5_openjpeg_h
1784     OpenGL_gl3_h
1785     poll_h
1786     sndio_h
1787     soundcard_h
1788     sys_mman_h
1789     sys_param_h
1790     sys_resource_h
1791     sys_select_h
1792     sys_soundcard_h
1793     sys_time_h
1794     sys_un_h
1795     sys_videoio_h
1796     termios_h
1797     udplite_h
1798     unistd_h
1799     valgrind_valgrind_h
1800     windows_h
1801     winsock2_h
1802 "
1803
1804 INTRINSICS_LIST="
1805     intrinsics_neon
1806 "
1807
1808 COMPLEX_FUNCS="
1809     cabs
1810     cexp
1811 "
1812
1813 MATH_FUNCS="
1814     atanf
1815     atan2f
1816     cbrt
1817     cbrtf
1818     copysign
1819     cosf
1820     erf
1821     exp2
1822     exp2f
1823     expf
1824     hypot
1825     isinf
1826     isnan
1827     ldexpf
1828     llrint
1829     llrintf
1830     log2
1831     log2f
1832     log10f
1833     lrint
1834     lrintf
1835     powf
1836     rint
1837     round
1838     roundf
1839     sinf
1840     trunc
1841     truncf
1842 "
1843
1844 SYSTEM_FUNCS="
1845     access
1846     aligned_malloc
1847     arc4random
1848     clock_gettime
1849     closesocket
1850     CommandLineToArgvW
1851     CoTaskMemFree
1852     CryptGenRandom
1853     dlopen
1854     fcntl
1855     flt_lim
1856     fork
1857     getaddrinfo
1858     gethrtime
1859     getopt
1860     GetProcessAffinityMask
1861     GetProcessMemoryInfo
1862     GetProcessTimes
1863     getrusage
1864     GetSystemTimeAsFileTime
1865     gettimeofday
1866     glob
1867     glXGetProcAddress
1868     gmtime_r
1869     inet_aton
1870     isatty
1871     jack_port_get_latency_range
1872     kbhit
1873     localtime_r
1874     lstat
1875     lzo1x_999_compress
1876     mach_absolute_time
1877     MapViewOfFile
1878     memalign
1879     mkstemp
1880     mmap
1881     mprotect
1882     nanosleep
1883     PeekNamedPipe
1884     posix_memalign
1885     pthread_cancel
1886     sched_getaffinity
1887     SetConsoleTextAttribute
1888     SetConsoleCtrlHandler
1889     setmode
1890     setrlimit
1891     Sleep
1892     strerror_r
1893     sysconf
1894     sysctl
1895     usleep
1896     UTGetOSTypeFromString
1897     VirtualAlloc
1898     wglGetProcAddress
1899 "
1900
1901 TOOLCHAIN_FEATURES="
1902     as_dn_directive
1903     as_func
1904     as_object_arch
1905     asm_mod_q
1906     attribute_may_alias
1907     attribute_packed
1908     ebp_available
1909     ebx_available
1910     gnu_as
1911     gnu_windres
1912     ibm_asm
1913     inline_asm_labels
1914     inline_asm_nonlocal_labels
1915     inline_asm_direct_symbol_refs
1916     pragma_deprecated
1917     rsync_contimeout
1918     symver_asm_label
1919     symver_gnu_asm
1920     vfp_args
1921     xform_asm
1922     xmm_clobbers
1923 "
1924
1925 TYPES_LIST="
1926     CONDITION_VARIABLE_Ptr
1927     socklen_t
1928     struct_addrinfo
1929     struct_group_source_req
1930     struct_ip_mreq_source
1931     struct_ipv6_mreq
1932     struct_pollfd
1933     struct_rusage_ru_maxrss
1934     struct_sctp_event_subscribe
1935     struct_sockaddr_in6
1936     struct_sockaddr_sa_len
1937     struct_sockaddr_storage
1938     struct_stat_st_mtim_tv_nsec
1939     struct_v4l2_frmivalenum_discrete
1940 "
1941
1942 HAVE_LIST="
1943     $ARCH_EXT_LIST
1944     $(add_suffix _external $ARCH_EXT_LIST)
1945     $(add_suffix _inline   $ARCH_EXT_LIST)
1946     $ARCH_FEATURES
1947     $ATOMICS_LIST
1948     $BUILTIN_LIST
1949     $COMPLEX_FUNCS
1950     $HAVE_LIST_CMDLINE
1951     $HAVE_LIST_PUB
1952     $HEADERS_LIST
1953     $INTRINSICS_LIST
1954     $MATH_FUNCS
1955     $SYSTEM_FUNCS
1956     $THREADS_LIST
1957     $TOOLCHAIN_FEATURES
1958     $TYPES_LIST
1959     atomics_native
1960     dos_paths
1961     dxva2api_cobj
1962     dxva2_lib
1963     winrt
1964     libc_msvcrt
1965     libdc1394_1
1966     libdc1394_2
1967     makeinfo
1968     makeinfo_html
1969     perl
1970     pod2man
1971     sdl
1972     section_data_rel_ro
1973     texi2html
1974     threads
1975     vaapi_x11
1976     vdpau_x11
1977     xlib
1978 "
1979
1980 # options emitted with CONFIG_ prefix but not available on the command line
1981 CONFIG_EXTRA="
1982     aandcttables
1983     ac3dsp
1984     audio_frame_queue
1985     audiodsp
1986     blockdsp
1987     bswapdsp
1988     cabac
1989     dirac_parse
1990     dvprofile
1991     exif
1992     faandct
1993     faanidct
1994     fdctdsp
1995     flacdsp
1996     fmtconvert
1997     frame_thread_encoder
1998     g722dsp
1999     golomb
2000     gplv3
2001     h263dsp
2002     h264chroma
2003     h264dsp
2004     h264pred
2005     h264qpel
2006     hpeldsp
2007     huffman
2008     huffyuvdsp
2009     huffyuvencdsp
2010     idctdsp
2011     iirfilter
2012     imdct15
2013     intrax8
2014     ividsp
2015     jpegtables
2016     libx262
2017     lgplv3
2018     llauddsp
2019     llviddsp
2020     lpc
2021     lzf
2022     me_cmp
2023     mpeg_er
2024     mpegaudio
2025     mpegaudiodsp
2026     mpegvideo
2027     mpegvideoenc
2028     mss34dsp
2029     pixblockdsp
2030     qpeldsp
2031     qsv
2032     qsvdec
2033     qsvenc
2034     rangecoder
2035     riffdec
2036     riffenc
2037     rtpdec
2038     rtpenc_chain
2039     rv34dsp
2040     sinewin
2041     snappy
2042     startcode
2043     texturedsp
2044     texturedspenc
2045     tpeldsp
2046     videodsp
2047     vp3dsp
2048     vp56dsp
2049     vp8dsp
2050     wma_freqs
2051     wmv2dsp
2052 "
2053
2054 CMDLINE_SELECT="
2055     $ARCH_EXT_LIST
2056     $CONFIG_LIST
2057     $HAVE_LIST_CMDLINE
2058     $THREADS_LIST
2059     asm
2060     cross_compile
2061     debug
2062     extra_warnings
2063     logging
2064     lto
2065     optimizations
2066     rpath
2067     stripping
2068 "
2069
2070 PATHS_LIST="
2071     bindir
2072     datadir
2073     docdir
2074     incdir
2075     libdir
2076     mandir
2077     pkgconfigdir
2078     prefix
2079     shlibdir
2080 "
2081
2082 CMDLINE_SET="
2083     $PATHS_LIST
2084     ar
2085     arch
2086     as
2087     assert_level
2088     build_suffix
2089     cc
2090     objcc
2091     cpu
2092     cross_prefix
2093     custom_allocator
2094     cxx
2095     dep_cc
2096     doxygen
2097     env
2098     extra_version
2099     gas
2100     host_cc
2101     host_cflags
2102     host_ld
2103     host_ldflags
2104     host_libs
2105     host_os
2106     install
2107     ld
2108     logfile
2109     malloc_prefix
2110     nm
2111     optflags
2112     pkg_config
2113     pkg_config_flags
2114     progs_suffix
2115     random_seed
2116     ranlib
2117     samples
2118     strip
2119     sws_max_filter_size
2120     sysinclude
2121     sysroot
2122     target_exec
2123     target_os
2124     target_path
2125     target_samples
2126     tempprefix
2127     toolchain
2128     valgrind
2129     yasmexe
2130 "
2131
2132 CMDLINE_APPEND="
2133     extra_cflags
2134     extra_cxxflags
2135     extra_objcflags
2136     host_cppflags
2137 "
2138
2139 # code dependency declarations
2140
2141 # architecture extensions
2142
2143 armv5te_deps="arm"
2144 armv6_deps="arm"
2145 armv6t2_deps="arm"
2146 armv8_deps="aarch64"
2147 neon_deps_any="aarch64 arm"
2148 intrinsics_neon_deps="neon"
2149 vfp_deps_any="aarch64 arm"
2150 vfpv3_deps="vfp"
2151 setend_deps="arm"
2152
2153 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2154
2155 mipsfpu_deps="mips"
2156 mipsdsp_deps="mips"
2157 mipsdspr2_deps="mips"
2158 mips32r2_deps="mips"
2159 mips32r6_deps="mips"
2160 mips64r2_deps="mips"
2161 mips64r6_deps="mips"
2162 msa_deps="mips"
2163 mmi_deps="mips"
2164
2165 altivec_deps="ppc"
2166 dcbzl_deps="ppc"
2167 ldbrx_deps="ppc"
2168 ppc4xx_deps="ppc"
2169 vsx_deps="altivec"
2170 power8_deps="vsx"
2171
2172 cpunop_deps="i686"
2173 x86_64_select="i686"
2174 x86_64_suggest="fast_cmov"
2175
2176 amd3dnow_deps="mmx"
2177 amd3dnowext_deps="amd3dnow"
2178 i686_deps="x86"
2179 mmx_deps="x86"
2180 mmxext_deps="mmx"
2181 sse_deps="mmxext"
2182 sse2_deps="sse"
2183 sse3_deps="sse2"
2184 ssse3_deps="sse3"
2185 sse4_deps="ssse3"
2186 sse42_deps="sse4"
2187 aesni_deps="sse42"
2188 avx_deps="sse42"
2189 xop_deps="avx"
2190 fma3_deps="avx"
2191 fma4_deps="avx"
2192 avx2_deps="avx"
2193
2194 mmx_external_deps="yasm"
2195 mmx_inline_deps="inline_asm"
2196 mmx_suggest="mmx_external mmx_inline"
2197
2198 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2199     eval dep=\$${ext}_deps
2200     eval ${ext}_external_deps='"${dep}_external"'
2201     eval ${ext}_inline_deps='"${dep}_inline"'
2202     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2203 done
2204
2205 aligned_stack_if_any="aarch64 ppc x86"
2206 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2207 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2208 fast_unaligned_if_any="aarch64 ppc x86"
2209 simd_align_16_if_any="altivec neon sse"
2210
2211 # system capabilities
2212 symver_if_any="symver_asm_label symver_gnu_asm"
2213 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2214
2215 # threading support
2216 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2217 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2218 atomics_win32_if="MemoryBarrier"
2219 atomics_native_if_any="$ATOMICS_LIST"
2220 w32threads_deps="atomics_native"
2221 threads_if_any="$THREADS_LIST"
2222
2223 # subsystems
2224 dct_select="rdft"
2225 dirac_parse_select="golomb"
2226 error_resilience_select="me_cmp"
2227 faandct_deps="faan fdctdsp"
2228 faanidct_deps="faan idctdsp"
2229 frame_thread_encoder_deps="encoders threads"
2230 intrax8_select="error_resilience"
2231 mdct_select="fft"
2232 rdft_select="fft"
2233 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2234 mpeg_er_select="error_resilience"
2235 mpegaudio_select="mpegaudiodsp"
2236 mpegaudiodsp_select="dct"
2237 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2238 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2239 qsvdec_select="qsv"
2240 qsvenc_select="qsv"
2241
2242 # decoders / encoders
2243 aac_decoder_select="imdct15 mdct sinewin"
2244 aac_fixed_decoder_select="mdct sinewin"
2245 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2247 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2248 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2249 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2250 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2251 adpcm_g722_decoder_select="g722dsp"
2252 adpcm_g722_encoder_select="g722dsp"
2253 aic_decoder_select="golomb idctdsp"
2254 alac_encoder_select="lpc"
2255 als_decoder_select="bswapdsp"
2256 amrnb_decoder_select="lsp"
2257 amrwb_decoder_select="lsp"
2258 amv_decoder_select="sp5x_decoder exif"
2259 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2260 ape_decoder_select="bswapdsp llauddsp"
2261 apng_decoder_select="zlib"
2262 apng_encoder_select="huffyuvencdsp zlib"
2263 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2264 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2265 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2266 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2267 atrac1_decoder_select="mdct sinewin"
2268 atrac3_decoder_select="mdct"
2269 atrac3p_decoder_select="mdct sinewin"
2270 avrn_decoder_select="exif jpegtables"
2271 bink_decoder_select="blockdsp hpeldsp"
2272 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2273 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2274 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2275 cllc_decoder_select="bswapdsp"
2276 comfortnoise_encoder_select="lpc"
2277 cook_decoder_select="audiodsp mdct sinewin"
2278 cscd_decoder_select="lzo"
2279 cscd_decoder_suggest="zlib"
2280 dca_decoder_select="fmtconvert mdct"
2281 dds_decoder_select="texturedsp"
2282 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2283 dnxhd_decoder_select="blockdsp idctdsp"
2284 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2285 dvvideo_decoder_select="dvprofile idctdsp"
2286 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2287 dxa_decoder_select="zlib"
2288 dxv_decoder_select="lzf texturedsp"
2289 eac3_decoder_select="ac3_decoder"
2290 eac3_encoder_select="ac3_encoder"
2291 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2292 eatgq_decoder_select="aandcttables"
2293 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2294 exr_decoder_select="zlib"
2295 ffv1_decoder_select="golomb rangecoder"
2296 ffv1_encoder_select="rangecoder"
2297 ffvhuff_decoder_select="huffyuv_decoder"
2298 ffvhuff_encoder_select="huffyuv_encoder"
2299 fic_decoder_select="golomb"
2300 flac_decoder_select="flacdsp golomb"
2301 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2302 flashsv_decoder_select="zlib"
2303 flashsv_encoder_select="zlib"
2304 flashsv2_encoder_select="zlib"
2305 flashsv2_decoder_select="zlib"
2306 flv_decoder_select="h263_decoder"
2307 flv_encoder_select="h263_encoder"
2308 fourxm_decoder_select="blockdsp bswapdsp"
2309 fraps_decoder_select="bswapdsp huffman"
2310 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2311 g729_decoder_select="audiodsp"
2312 h261_decoder_select="mpegvideo"
2313 h261_encoder_select="aandcttables mpegvideoenc"
2314 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2315 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2316 h263i_decoder_select="h263_decoder"
2317 h263p_decoder_select="h263_decoder"
2318 h263p_encoder_select="h263_encoder"
2319 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2320 h264_decoder_suggest="error_resilience"
2321 h264_qsv_decoder_deps="libmfx"
2322 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2323 h264_qsv_encoder_deps="libmfx"
2324 h264_qsv_encoder_select="qsvenc"
2325 hap_decoder_select="snappy texturedsp"
2326 hap_encoder_deps="libsnappy"
2327 hap_encoder_select="texturedspenc"
2328 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2329 hevc_qsv_encoder_deps="libmfx"
2330 hevc_qsv_decoder_deps="libmfx"
2331 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2332 hevc_qsv_encoder_select="qsvenc"
2333 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2334 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2335 iac_decoder_select="imc_decoder"
2336 imc_decoder_select="bswapdsp fft mdct sinewin"
2337 indeo3_decoder_select="hpeldsp"
2338 indeo4_decoder_select="ividsp"
2339 indeo5_decoder_select="ividsp"
2340 interplay_video_decoder_select="hpeldsp"
2341 jpegls_decoder_select="golomb mjpeg_decoder"
2342 jpegls_encoder_select="golomb"
2343 jv_decoder_select="blockdsp"
2344 lagarith_decoder_select="huffyuvdsp"
2345 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2346 loco_decoder_select="golomb"
2347 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2348 metasound_decoder_select="lsp mdct sinewin"
2349 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2350 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2351 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2352 mjpegb_decoder_select="mjpeg_decoder"
2353 mlp_decoder_select="mlp_parser"
2354 motionpixels_decoder_select="bswapdsp"
2355 mp1_decoder_select="mpegaudio"
2356 mp1float_decoder_select="mpegaudio"
2357 mp2_decoder_select="mpegaudio"
2358 mp2float_decoder_select="mpegaudio"
2359 mp3_decoder_select="mpegaudio"
2360 mp3adu_decoder_select="mpegaudio"
2361 mp3adufloat_decoder_select="mpegaudio"
2362 mp3float_decoder_select="mpegaudio"
2363 mp3on4_decoder_select="mpegaudio"
2364 mp3on4float_decoder_select="mpegaudio"
2365 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2366 mpc8_decoder_select="mpegaudiodsp"
2367 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2368 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2369 mpegvideo_decoder_select="mpegvideo"
2370 mpeg1video_decoder_select="mpegvideo"
2371 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2372 mpeg2video_decoder_select="mpegvideo"
2373 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2374 mpeg2_qsv_decoder_deps="libmfx"
2375 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2376 mpeg2_qsv_encoder_deps="libmfx"
2377 mpeg2_qsv_encoder_select="qsvenc"
2378 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2379 mpeg4_encoder_select="h263_encoder"
2380 msa1_decoder_select="mss34dsp"
2381 msmpeg4v1_decoder_select="h263_decoder"
2382 msmpeg4v2_decoder_select="h263_decoder"
2383 msmpeg4v2_encoder_select="h263_encoder"
2384 msmpeg4v3_decoder_select="h263_decoder"
2385 msmpeg4v3_encoder_select="h263_encoder"
2386 mss2_decoder_select="vc1_decoder"
2387 mts2_decoder_select="mss34dsp"
2388 mxpeg_decoder_select="mjpeg_decoder"
2389 nellymoser_decoder_select="mdct sinewin"
2390 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2391 nuv_decoder_select="idctdsp lzo"
2392 on2avc_decoder_select="mdct"
2393 opus_decoder_deps="swresample"
2394 opus_decoder_select="imdct15"
2395 png_decoder_select="zlib"
2396 png_encoder_select="huffyuvencdsp zlib"
2397 prores_decoder_select="blockdsp idctdsp"
2398 prores_encoder_select="fdctdsp"
2399 qcelp_decoder_select="lsp"
2400 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2401 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2402 ra_144_decoder_select="audiodsp"
2403 ralf_decoder_select="golomb"
2404 rawvideo_decoder_select="bswapdsp"
2405 rscc_decoder_select="zlib"
2406 rtjpeg_decoder_select="me_cmp"
2407 rv10_decoder_select="h263_decoder"
2408 rv10_encoder_select="h263_encoder"
2409 rv20_decoder_select="h263_decoder"
2410 rv20_encoder_select="h263_encoder"
2411 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2412 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2413 screenpresso_decoder_select="zlib"
2414 shorten_decoder_select="golomb"
2415 sipr_decoder_select="lsp"
2416 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2417 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2418 sonic_decoder_select="golomb rangecoder"
2419 sonic_encoder_select="golomb rangecoder"
2420 sonic_ls_encoder_select="golomb rangecoder"
2421 sp5x_decoder_select="mjpeg_decoder"
2422 svq1_decoder_select="hpeldsp"
2423 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2424 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2425 svq3_decoder_suggest="zlib"
2426 tak_decoder_select="audiodsp"
2427 tdsc_decoder_select="zlib mjpeg_decoder"
2428 theora_decoder_select="vp3_decoder"
2429 thp_decoder_select="mjpeg_decoder"
2430 tiff_decoder_suggest="zlib lzma"
2431 tiff_encoder_suggest="zlib"
2432 truehd_decoder_select="mlp_parser"
2433 truemotion2_decoder_select="bswapdsp"
2434 truespeech_decoder_select="bswapdsp"
2435 tscc_decoder_select="zlib"
2436 twinvq_decoder_select="mdct lsp sinewin"
2437 txd_decoder_select="texturedsp"
2438 utvideo_decoder_select="bswapdsp"
2439 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2440 vble_decoder_select="huffyuvdsp"
2441 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2442 vc1image_decoder_select="vc1_decoder"
2443 vc1_qsv_decoder_deps="libmfx"
2444 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2445 vorbis_decoder_select="mdct"
2446 vorbis_encoder_select="mdct"
2447 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2448 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2449 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2450 vp6a_decoder_select="vp6_decoder"
2451 vp6f_decoder_select="vp6_decoder"
2452 vp7_decoder_select="h264pred videodsp vp8dsp"
2453 vp8_decoder_select="h264pred videodsp vp8dsp"
2454 vp9_decoder_select="videodsp vp9_parser"
2455 webp_decoder_select="vp8_decoder"
2456 wmalossless_decoder_select="llauddsp"
2457 wmapro_decoder_select="mdct sinewin wma_freqs"
2458 wmav1_decoder_select="mdct sinewin wma_freqs"
2459 wmav1_encoder_select="mdct sinewin wma_freqs"
2460 wmav2_decoder_select="mdct sinewin wma_freqs"
2461 wmav2_encoder_select="mdct sinewin wma_freqs"
2462 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2463 wmv1_decoder_select="h263_decoder"
2464 wmv1_encoder_select="h263_encoder"
2465 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2466 wmv2_encoder_select="h263_encoder wmv2dsp"
2467 wmv3_decoder_select="vc1_decoder"
2468 wmv3image_decoder_select="wmv3_decoder"
2469 zerocodec_decoder_select="zlib"
2470 zlib_decoder_select="zlib"
2471 zlib_encoder_select="zlib"
2472 zmbv_decoder_select="zlib"
2473 zmbv_encoder_select="zlib"
2474
2475 # hardware accelerators
2476 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2477 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2478 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2479 vaapi_deps="va_va_h"
2480 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2481 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2482 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2483 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2484 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2485 xvmc_deps="X11_extensions_XvMClib_h"
2486
2487 h263_vaapi_hwaccel_deps="vaapi"
2488 h263_vaapi_hwaccel_select="h263_decoder"
2489 h263_videotoolbox_hwaccel_deps="videotoolbox"
2490 h263_videotoolbox_hwaccel_select="h263_decoder"
2491 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2492 h264_d3d11va_hwaccel_deps="d3d11va"
2493 h264_d3d11va_hwaccel_select="h264_decoder"
2494 h264_dxva2_hwaccel_deps="dxva2"
2495 h264_dxva2_hwaccel_select="h264_decoder"
2496 h264_mmal_decoder_deps="mmal"
2497 h264_mmal_hwaccel_deps="mmal"
2498 h264_mmal_decoder_select="h264_decoder"
2499 h264_mmal_encoder_deps="mmal"
2500 h264_qsv_hwaccel_deps="libmfx"
2501 h264_vaapi_hwaccel_deps="vaapi"
2502 h264_vaapi_hwaccel_select="h264_decoder"
2503 h264_vda_decoder_deps="vda"
2504 h264_vda_decoder_select="h264_decoder"
2505 h264_vda_hwaccel_deps="vda"
2506 h264_vda_hwaccel_select="h264_decoder"
2507 h264_vda_old_hwaccel_deps="vda"
2508 h264_vda_old_hwaccel_select="h264_decoder"
2509 h264_vdpau_decoder_deps="vdpau"
2510 h264_vdpau_decoder_select="h264_decoder"
2511 h264_vdpau_hwaccel_deps="vdpau"
2512 h264_vdpau_hwaccel_select="h264_decoder"
2513 h264_videotoolbox_hwaccel_deps="videotoolbox"
2514 h264_videotoolbox_hwaccel_select="h264_decoder"
2515 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2516 hevc_d3d11va_hwaccel_select="hevc_decoder"
2517 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2518 hevc_dxva2_hwaccel_select="hevc_decoder"
2519 hevc_qsv_hwaccel_deps="libmfx"
2520 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2521 hevc_vaapi_hwaccel_select="hevc_decoder"
2522 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2523 hevc_vdpau_hwaccel_select="hevc_decoder"
2524 mpeg_vdpau_decoder_deps="vdpau"
2525 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2526 mpeg_xvmc_hwaccel_deps="xvmc"
2527 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2528 mpeg1_vdpau_decoder_deps="vdpau"
2529 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2530 mpeg1_vdpau_hwaccel_deps="vdpau"
2531 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2532 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2533 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2534 mpeg1_xvmc_hwaccel_deps="xvmc"
2535 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2536 mpeg2_crystalhd_decoder_select="crystalhd"
2537 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2538 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2539 mpeg2_dxva2_hwaccel_deps="dxva2"
2540 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2541 mpeg2_mmal_decoder_deps="mmal"
2542 mpeg2_mmal_hwaccel_deps="mmal"
2543 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2544 mpeg2_qsv_hwaccel_deps="libmfx"
2545 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2546 mpeg2_vaapi_hwaccel_deps="vaapi"
2547 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2548 mpeg2_vdpau_hwaccel_deps="vdpau"
2549 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2550 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2551 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2552 mpeg2_xvmc_hwaccel_deps="xvmc"
2553 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2554 mpeg4_crystalhd_decoder_select="crystalhd"
2555 mpeg4_vaapi_hwaccel_deps="vaapi"
2556 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2557 mpeg4_vdpau_decoder_deps="vdpau"
2558 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2559 mpeg4_vdpau_hwaccel_deps="vdpau"
2560 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2561 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2562 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2563 msmpeg4_crystalhd_decoder_select="crystalhd"
2564 vc1_crystalhd_decoder_select="crystalhd"
2565 vc1_d3d11va_hwaccel_deps="d3d11va"
2566 vc1_d3d11va_hwaccel_select="vc1_decoder"
2567 vc1_dxva2_hwaccel_deps="dxva2"
2568 vc1_dxva2_hwaccel_select="vc1_decoder"
2569 vc1_vaapi_hwaccel_deps="vaapi"
2570 vc1_vaapi_hwaccel_select="vc1_decoder"
2571 vc1_vdpau_decoder_deps="vdpau"
2572 vc1_vdpau_decoder_select="vc1_decoder"
2573 vc1_vdpau_hwaccel_deps="vdpau"
2574 vc1_vdpau_hwaccel_select="vc1_decoder"
2575 vc1_mmal_decoder_deps="mmal"
2576 vc1_mmal_hwaccel_deps="mmal"
2577 vc1_mmal_decoder_select="vc1_decoder"
2578 vc1_qsv_hwaccel_deps="libmfx"
2579 vc1_qsv_hwaccel_select="qsvdec_vc1"
2580 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2581 vp9_d3d11va_hwaccel_select="vp9_decoder"
2582 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2583 vp9_dxva2_hwaccel_select="vp9_decoder"
2584 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2585 vp9_vaapi_hwaccel_select="vp9_decoder"
2586 wmv3_crystalhd_decoder_select="crystalhd"
2587 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2588 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2589 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2590 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2591 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2592
2593 # parsers
2594 h264_parser_select="h264_decoder"
2595 hevc_parser_select="golomb"
2596 mpegvideo_parser_select="mpegvideo"
2597 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2598 vc1_parser_select="mpegvideo startcode vc1_decoder"
2599
2600 # bitstream_filters
2601 mjpeg2jpeg_bsf_select="jpegtables"
2602
2603 # external libraries
2604 chromaprint_muxer_deps="chromaprint"
2605 libaacplus_encoder_deps="libaacplus"
2606 libcelt_decoder_deps="libcelt"
2607 libdcadec_decoder_deps="libdcadec"
2608 libfaac_encoder_deps="libfaac"
2609 libfaac_encoder_select="audio_frame_queue"
2610 libfdk_aac_decoder_deps="libfdk_aac"
2611 libfdk_aac_encoder_deps="libfdk_aac"
2612 libfdk_aac_encoder_select="audio_frame_queue"
2613 libgme_demuxer_deps="libgme"
2614 libgsm_decoder_deps="libgsm"
2615 libgsm_encoder_deps="libgsm"
2616 libgsm_ms_decoder_deps="libgsm"
2617 libgsm_ms_encoder_deps="libgsm"
2618 libilbc_decoder_deps="libilbc"
2619 libilbc_encoder_deps="libilbc"
2620 libkvazaar_encoder_deps="libkvazaar"
2621 libmodplug_demuxer_deps="libmodplug"
2622 libmp3lame_encoder_deps="libmp3lame"
2623 libmp3lame_encoder_select="audio_frame_queue"
2624 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2625 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2626 libopencore_amrnb_encoder_select="audio_frame_queue"
2627 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2628 libopenh264_encoder_deps="libopenh264"
2629 libopenjpeg_decoder_deps="libopenjpeg"
2630 libopenjpeg_encoder_deps="libopenjpeg"
2631 libopus_decoder_deps="libopus"
2632 libopus_encoder_deps="libopus"
2633 libopus_encoder_select="audio_frame_queue"
2634 libquvi_demuxer_deps="libquvi"
2635 libschroedinger_decoder_deps="libschroedinger"
2636 libschroedinger_encoder_deps="libschroedinger"
2637 libshine_encoder_deps="libshine"
2638 libshine_encoder_select="audio_frame_queue"
2639 libspeex_decoder_deps="libspeex"
2640 libspeex_encoder_deps="libspeex"
2641 libspeex_encoder_select="audio_frame_queue"
2642 libstagefright_h264_decoder_deps="libstagefright_h264"
2643 libtheora_encoder_deps="libtheora"
2644 libtwolame_encoder_deps="libtwolame"
2645 libvo_aacenc_encoder_deps="libvo_aacenc"
2646 libvo_aacenc_encoder_select="audio_frame_queue"
2647 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2648 libvorbis_decoder_deps="libvorbis"
2649 libvorbis_encoder_deps="libvorbis"
2650 libvorbis_encoder_select="audio_frame_queue"
2651 libvpx_vp8_decoder_deps="libvpx"
2652 libvpx_vp8_encoder_deps="libvpx"
2653 libvpx_vp9_decoder_deps="libvpx"
2654 libvpx_vp9_encoder_deps="libvpx"
2655 libwavpack_encoder_deps="libwavpack"
2656 libwebp_encoder_deps="libwebp"
2657 libwebp_anim_encoder_deps="libwebp"
2658 libx262_encoder_deps="libx262"
2659 libx264_encoder_deps="libx264"
2660 libx264rgb_encoder_deps="libx264"
2661 libx264rgb_encoder_select="libx264_encoder"
2662 libx265_encoder_deps="libx265"
2663 libxavs_encoder_deps="libxavs"
2664 libxvid_encoder_deps="libxvid"
2665 libutvideo_decoder_deps="libutvideo"
2666 libutvideo_encoder_deps="libutvideo"
2667 libzvbi_teletext_decoder_deps="libzvbi"
2668 nvenc_encoder_deps="nvenc"
2669 nvenc_h264_encoder_deps="nvenc"
2670 nvenc_hevc_encoder_deps="nvenc"
2671
2672 # demuxers / muxers
2673 ac3_demuxer_select="ac3_parser"
2674 asf_demuxer_select="riffdec"
2675 asf_o_demuxer_select="riffdec"
2676 asf_muxer_select="riffenc"
2677 asf_stream_muxer_select="asf_muxer"
2678 avi_demuxer_select="riffdec exif"
2679 avi_muxer_select="riffenc"
2680 avisynth_demuxer_deps="avisynth"
2681 avisynth_demuxer_select="riffdec"
2682 caf_demuxer_select="riffdec"
2683 dash_muxer_select="mp4_muxer"
2684 dirac_demuxer_select="dirac_parser"
2685 dts_demuxer_select="dca_parser"
2686 dtshd_demuxer_select="dca_parser"
2687 dv_demuxer_select="dvprofile"
2688 dv_muxer_select="dvprofile"
2689 dxa_demuxer_select="riffdec"
2690 eac3_demuxer_select="ac3_parser"
2691 f4v_muxer_select="mov_muxer"
2692 flac_demuxer_select="flac_parser"
2693 hds_muxer_select="flv_muxer"
2694 hls_muxer_select="mpegts_muxer"
2695 image2_alias_pix_demuxer_select="image2_demuxer"
2696 image2_brender_pix_demuxer_select="image2_demuxer"
2697 ipod_muxer_select="mov_muxer"
2698 ismv_muxer_select="mov_muxer"
2699 libnut_demuxer_deps="libnut"
2700 libnut_muxer_deps="libnut"
2701 matroska_audio_muxer_select="matroska_muxer"
2702 matroska_demuxer_select="riffdec"
2703 matroska_demuxer_suggest="bzlib lzo zlib"
2704 matroska_muxer_select="riffenc"
2705 mmf_muxer_select="riffenc"
2706 mov_demuxer_select="riffdec"
2707 mov_demuxer_suggest="zlib"
2708 mov_muxer_select="riffenc rtpenc_chain"
2709 mp3_demuxer_select="mpegaudio_parser"
2710 mp4_muxer_select="mov_muxer"
2711 mpegts_muxer_select="adts_muxer latm_muxer"
2712 mpegtsraw_demuxer_select="mpegts_demuxer"
2713 mxf_d10_muxer_select="mxf_muxer"
2714 mxf_opatom_muxer_select="mxf_muxer"
2715 nut_muxer_select="riffenc"
2716 nuv_demuxer_select="riffdec"
2717 oga_muxer_select="ogg_muxer"
2718 ogg_demuxer_select="dirac_parse"
2719 opus_muxer_select="ogg_muxer"
2720 psp_muxer_select="mov_muxer"
2721 rtp_demuxer_select="sdp_demuxer"
2722 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2723 rtsp_demuxer_select="http_protocol rtpdec"
2724 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2725 sap_demuxer_select="sdp_demuxer"
2726 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2727 sdp_demuxer_select="rtpdec"
2728 smoothstreaming_muxer_select="ismv_muxer"
2729 spdif_muxer_select="aac_parser"
2730 spx_muxer_select="ogg_muxer"
2731 tak_demuxer_select="tak_parser"
2732 tg2_muxer_select="mov_muxer"
2733 tgp_muxer_select="mov_muxer"
2734 vobsub_demuxer_select="mpegps_demuxer"
2735 w64_demuxer_select="wav_demuxer"
2736 w64_muxer_select="wav_muxer"
2737 wav_demuxer_select="riffdec"
2738 wav_muxer_select="riffenc"
2739 webm_muxer_select="riffenc"
2740 wtv_demuxer_select="riffdec"
2741 wtv_muxer_select="riffenc"
2742 xmv_demuxer_select="riffdec"
2743 xwma_demuxer_select="riffdec"
2744
2745 # indevs / outdevs
2746 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2747 alsa_outdev_deps="alsa_asoundlib_h"
2748 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2749 avfoundation_indev_select="avfoundation"
2750 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2751 caca_outdev_deps="libcaca"
2752 decklink_outdev_deps="decklink pthreads"
2753 decklink_outdev_extralibs="-lstdc++"
2754 decklink_indev_deps="decklink pthreads"
2755 decklink_indev_extralibs="-lstdc++"
2756 dshow_indev_deps="IBaseFilter"
2757 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2758 dv1394_indev_deps="dv1394"
2759 dv1394_indev_select="dv_demuxer"
2760 fbdev_indev_deps="linux_fb_h"
2761 fbdev_outdev_deps="linux_fb_h"
2762 gdigrab_indev_deps="CreateDIBSection"
2763 gdigrab_indev_extralibs="-lgdi32"
2764 gdigrab_indev_select="bmp_decoder"
2765 iec61883_indev_deps="libiec61883"
2766 jack_indev_deps="jack_jack_h sem_timedwait"
2767 lavfi_indev_deps="avfilter"
2768 libcdio_indev_deps="libcdio"
2769 libdc1394_indev_deps="libdc1394"
2770 libv4l2_indev_deps="libv4l2"
2771 openal_indev_deps="openal"
2772 opengl_outdev_deps="opengl"
2773 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2774 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2775 pulse_indev_deps="libpulse"
2776 pulse_outdev_deps="libpulse"
2777 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2778 qtkit_indev_select="qtkit"
2779 sdl_outdev_deps="sdl"
2780 sndio_indev_deps="sndio_h"
2781 sndio_outdev_deps="sndio_h"
2782 v4l_indev_deps="linux_videodev_h"
2783 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2784 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2785 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2786 vfwcap_indev_extralibs="-lavicap32"
2787 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2788 xv_outdev_extralibs="-lXv -lX11 -lXext"
2789 x11grab_indev_deps="x11grab"
2790 x11grab_xcb_indev_deps="libxcb"
2791
2792 # protocols
2793 async_protocol_deps="threads"
2794 bluray_protocol_deps="libbluray"
2795 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2796 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2797 ffrtmpcrypt_protocol_select="tcp_protocol"
2798 ffrtmphttp_protocol_deps="!librtmp_protocol"
2799 ffrtmphttp_protocol_select="http_protocol"
2800 ftp_protocol_select="tcp_protocol"
2801 gopher_protocol_select="network"
2802 http_protocol_select="tcp_protocol"
2803 httpproxy_protocol_select="tcp_protocol"
2804 https_protocol_select="tls_protocol"
2805 icecast_protocol_select="http_protocol"
2806 librtmp_protocol_deps="librtmp"
2807 librtmpe_protocol_deps="librtmp"
2808 librtmps_protocol_deps="librtmp"
2809 librtmpt_protocol_deps="librtmp"
2810 librtmpte_protocol_deps="librtmp"
2811 libsmbclient_protocol_deps="libsmbclient gplv3"
2812 libssh_protocol_deps="libssh"
2813 mmsh_protocol_select="http_protocol"
2814 mmst_protocol_select="network"
2815 rtmp_protocol_deps="!librtmp_protocol"
2816 rtmp_protocol_select="tcp_protocol"
2817 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2818 rtmps_protocol_deps="!librtmp_protocol"
2819 rtmps_protocol_select="tls_protocol"
2820 rtmpt_protocol_select="ffrtmphttp_protocol"
2821 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2822 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2823 rtp_protocol_select="udp_protocol"
2824 sctp_protocol_deps="struct_sctp_event_subscribe"
2825 sctp_protocol_select="network"
2826 srtp_protocol_select="rtp_protocol"
2827 tcp_protocol_select="network"
2828 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2829 tls_gnutls_protocol_select="tcp_protocol"
2830 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2831 tls_openssl_protocol_select="tcp_protocol"
2832 tls_schannel_protocol_deps="schannel"
2833 tls_schannel_protocol_select="tcp_protocol"
2834 tls_securetransport_protocol_deps="securetransport"
2835 tls_securetransport_protocol_select="tcp_protocol"
2836 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2837 udp_protocol_select="network"
2838 udplite_protocol_select="network"
2839 unix_protocol_deps="sys_un_h"
2840 unix_protocol_select="network"
2841
2842 # filters
2843 amovie_filter_deps="avcodec avformat"
2844 aresample_filter_deps="swresample"
2845 ass_filter_deps="libass"
2846 asyncts_filter_deps="avresample"
2847 atempo_filter_deps="avcodec"
2848 atempo_filter_select="rdft"
2849 azmq_filter_deps="libzmq"
2850 blackframe_filter_deps="gpl"
2851 boxblur_filter_deps="gpl"
2852 bs2b_filter_deps="libbs2b"
2853 colormatrix_filter_deps="gpl"
2854 cover_rect_filter_deps="avcodec avformat gpl"
2855 cropdetect_filter_deps="gpl"
2856 delogo_filter_deps="gpl"
2857 deshake_filter_select="pixelutils"
2858 drawtext_filter_deps="libfreetype"
2859 ebur128_filter_deps="gpl"
2860 eq_filter_deps="gpl"
2861 fftfilt_filter_deps="avcodec"
2862 fftfilt_filter_select="rdft"
2863 flite_filter_deps="libflite"
2864 find_rect_filter_deps="avcodec avformat gpl"
2865 frei0r_filter_deps="frei0r dlopen"
2866 frei0r_src_filter_deps="frei0r dlopen"
2867 fspp_filter_deps="gpl"
2868 geq_filter_deps="gpl"
2869 histeq_filter_deps="gpl"
2870 hqdn3d_filter_deps="gpl"
2871 interlace_filter_deps="gpl"
2872 kerndeint_filter_deps="gpl"
2873 ladspa_filter_deps="ladspa dlopen"
2874 mcdeint_filter_deps="avcodec gpl"
2875 movie_filter_deps="avcodec avformat"
2876 mpdecimate_filter_deps="gpl"
2877 mpdecimate_filter_select="pixelutils"
2878 mptestsrc_filter_deps="gpl"
2879 negate_filter_deps="lut_filter"
2880 perspective_filter_deps="gpl"
2881 pp7_filter_deps="gpl"
2882 ocr_filter_deps="libtesseract"
2883 ocv_filter_deps="libopencv"
2884 owdenoise_filter_deps="gpl"
2885 pan_filter_deps="swresample"
2886 phase_filter_deps="gpl"
2887 pp_filter_deps="gpl postproc"
2888 pullup_filter_deps="gpl"
2889 removelogo_filter_deps="avcodec avformat swscale"
2890 repeatfields_filter_deps="gpl"
2891 resample_filter_deps="avresample"
2892 rubberband_filter_deps="librubberband"
2893 sab_filter_deps="gpl swscale"
2894 scale_filter_deps="swscale"
2895 scale2ref_filter_deps="swscale"
2896 select_filter_select="pixelutils"
2897 smartblur_filter_deps="gpl swscale"
2898 showcqt_filter_deps="avcodec avformat swscale"
2899 showcqt_filter_select="fft"
2900 showfreqs_filter_deps="avcodec"
2901 showfreqs_filter_select="fft"
2902 showspectrum_filter_deps="avcodec"
2903 showspectrum_filter_select="rdft"
2904 sofalizer_filter_deps="netcdf avcodec"
2905 sofalizer_filter_select="fft"
2906 spp_filter_deps="gpl avcodec"
2907 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2908 stereo3d_filter_deps="gpl"
2909 subtitles_filter_deps="avformat avcodec libass"
2910 super2xsai_filter_deps="gpl"
2911 tinterlace_filter_deps="gpl"
2912 vidstabdetect_filter_deps="libvidstab"
2913 vidstabtransform_filter_deps="libvidstab"
2914 pixfmts_super2xsai_test_deps="super2xsai_filter"
2915 tinterlace_merge_test_deps="tinterlace_filter"
2916 tinterlace_pad_test_deps="tinterlace_filter"
2917 uspp_filter_deps="gpl avcodec"
2918 zmq_filter_deps="libzmq"
2919 zoompan_filter_deps="swscale"
2920 zscale_filter_deps="libzimg"
2921
2922 # examples
2923 avio_reading="avformat avcodec avutil"
2924 avio_dir_cmd="avformat avutil"
2925 avcodec_example_deps="avcodec avutil"
2926 decoding_encoding_example_deps="avcodec avformat avutil"
2927 demuxing_decoding_example_deps="avcodec avformat avutil"
2928 extract_mvs_example_deps="avcodec avformat avutil"
2929 filter_audio_example_deps="avfilter avutil"
2930 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2931 filtering_video_example_deps="avfilter avcodec avformat avutil"
2932 metadata_example_deps="avformat avutil"
2933 muxing_example_deps="avcodec avformat avutil swscale"
2934 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2935 remuxing_example_deps="avcodec avformat avutil"
2936 resampling_audio_example_deps="avutil swresample"
2937 scaling_video_example_deps="avutil swscale"
2938 transcode_aac_example_deps="avcodec avformat swresample"
2939 transcoding_example_deps="avfilter avcodec avformat avutil"
2940
2941 # libraries, in linking order
2942 avcodec_deps="avutil"
2943 avdevice_deps="avformat avcodec avutil"
2944 avfilter_deps="avutil"
2945 avformat_deps="avcodec avutil"
2946 avresample_deps="avutil"
2947 postproc_deps="avutil gpl"
2948 swresample_deps="avutil"
2949 swscale_deps="avutil"
2950
2951 # programs
2952 ffmpeg_deps="avcodec avfilter avformat swresample"
2953 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2954                null_filter
2955                setpts_filter trim_filter"
2956 ffplay_deps="avcodec avformat swscale swresample sdl"
2957 ffplay_libs='$sdl_libs'
2958 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2959 ffprobe_deps="avcodec avformat"
2960 ffserver_deps="avformat fork sarestart"
2961 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2962
2963 # documentation
2964 podpages_deps="perl"
2965 manpages_deps="perl pod2man"
2966 htmlpages_deps="perl"
2967 htmlpages_deps_any="makeinfo_html texi2html"
2968 txtpages_deps="perl makeinfo"
2969 doc_deps_any="manpages htmlpages podpages txtpages"
2970
2971 # default parameters
2972
2973 logfile="config.log"
2974
2975 # installation paths
2976 prefix_default="/usr/local"
2977 bindir_default='${prefix}/bin'
2978 datadir_default='${prefix}/share/ffmpeg'
2979 docdir_default='${prefix}/share/doc/ffmpeg'
2980 incdir_default='${prefix}/include'
2981 libdir_default='${prefix}/lib'
2982 mandir_default='${prefix}/share/man'
2983
2984 # toolchain
2985 ar_default="ar"
2986 cc_default="gcc"
2987 cxx_default="g++"
2988 host_cc_default="gcc"
2989 cp_f="cp -f"
2990 doxygen_default="doxygen"
2991 install="install"
2992 ln_s="ln -s -f"
2993 nm_default="nm -g"
2994 objformat="elf"
2995 pkg_config_default=pkg-config
2996 ranlib_default="ranlib"
2997 strip_default="strip"
2998 yasmexe_default="yasm"
2999 windres_default="windres"
3000
3001 # OS
3002 target_os_default=$(tolower $(uname -s))
3003 host_os=$target_os_default
3004
3005 # machine
3006 if test "$target_os_default" = aix; then
3007     arch_default=$(uname -p)
3008     strip_default="strip -X32_64"
3009 else
3010     arch_default=$(uname -m)
3011 fi
3012 cpu="generic"
3013 intrinsics="none"
3014
3015 # configurable options
3016 enable $PROGRAM_LIST
3017 enable $DOCUMENT_LIST
3018 enable $EXAMPLE_LIST
3019 enable $(filter_out avresample $LIBRARY_LIST)
3020 enable stripping
3021
3022 enable asm
3023 enable debug
3024 enable doc
3025 enable faan faandct faanidct
3026 enable optimizations
3027 enable runtime_cpudetect
3028 enable safe_bitstream_reader
3029 enable static
3030 enable swscale_alpha
3031 enable valgrind_backtrace
3032
3033 sws_max_filter_size_default=256
3034 set_default sws_max_filter_size
3035
3036 # Enable hwaccels by default.
3037 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3038 enable xlib
3039
3040 # build settings
3041 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3042 LIBPREF="lib"
3043 LIBSUF=".a"
3044 FULLNAME='$(NAME)$(BUILDSUF)'
3045 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3046 SLIBPREF="lib"
3047 SLIBSUF=".so"
3048 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3049 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3050 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3051 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3052 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3053 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3054
3055 asflags_filter=echo
3056 cflags_filter=echo
3057 ldflags_filter=echo
3058
3059 AS_C='-c'
3060 AS_O='-o $@'
3061 CC_C='-c'
3062 CC_E='-E -o $@'
3063 CC_O='-o $@'
3064 CXX_C='-c'
3065 CXX_O='-o $@'
3066 OBJCC_C='-c'
3067 OBJCC_E='-E -o $@'
3068 OBJCC_O='-o $@'
3069 LD_O='-o $@'
3070 LD_LIB='-l%'
3071 LD_PATH='-L'
3072 HOSTCC_C='-c'
3073 HOSTCC_E='-E -o $@'
3074 HOSTCC_O='-o $@'
3075 HOSTLD_O='-o $@'
3076
3077 host_libs='-lm'
3078 host_cflags_filter=echo
3079 host_ldflags_filter=echo
3080
3081 target_path='$(CURDIR)'
3082
3083 # since the object filename is not given with the -MM flag, the compiler
3084 # is only able to print the basename, and we must add the path ourselves
3085 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3086 DEPFLAGS='-MM'
3087
3088 # find source path
3089 if test -f configure; then
3090     source_path=.
3091 else
3092     source_path=$(cd $(dirname "$0"); pwd)
3093     case "$source_path" in
3094         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3095     esac
3096     test -e "$source_path/config.h" &&
3097         die "Out of tree builds are impossible with config.h in source dir."
3098 fi
3099
3100 for v in "$@"; do
3101     r=${v#*=}
3102     l=${v%"$r"}
3103     r=$(sh_quote "$r")
3104     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3105 done
3106
3107 find_things(){
3108     thing=$1
3109     pattern=$2
3110     file=$source_path/$3
3111     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3112 }
3113
3114 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3115 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3116 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3117 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3118 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3119 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3120 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3121 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3122 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3123 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3124 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3125
3126 ALL_COMPONENTS="
3127     $BSF_LIST
3128     $DECODER_LIST
3129     $DEMUXER_LIST
3130     $ENCODER_LIST
3131     $FILTER_LIST
3132     $HWACCEL_LIST
3133     $INDEV_LIST
3134     $MUXER_LIST
3135     $OUTDEV_LIST
3136     $PARSER_LIST
3137     $PROTOCOL_LIST
3138 "
3139
3140 for n in $COMPONENT_LIST; do
3141     v=$(toupper ${n%s})_LIST
3142     eval enable \$$v
3143     eval ${n}_if_any="\$$v"
3144 done
3145
3146 enable $ARCH_EXT_LIST
3147
3148 die_unknown(){
3149     echo "Unknown option \"$1\"."
3150     echo "See $0 --help for available options."
3151     exit 1
3152 }
3153
3154 print_in_columns() {
3155     cols=$(expr $ncols / 24)
3156     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3157 }
3158
3159 show_list() {
3160     suffix=_$1
3161     shift
3162     echo $* | sed s/$suffix//g | print_in_columns
3163     exit 0
3164 }
3165
3166 rand_list(){
3167     IFS=', '
3168     set -- $*
3169     unset IFS
3170     for thing; do
3171         comp=${thing%:*}
3172         prob=${thing#$comp}
3173         prob=${prob#:}
3174         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3175         echo "prob ${prob:-0.5}"
3176         printf '%s\n' $comp
3177     done
3178 }
3179
3180 do_random(){
3181     action=$1
3182     shift
3183     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3184     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3185 }
3186
3187 for opt do
3188     optval="${opt#*=}"
3189     case "$opt" in
3190         --extra-ldflags=*)
3191             add_ldflags $optval
3192         ;;
3193         --extra-ldexeflags=*)
3194             add_ldexeflags $optval
3195         ;;
3196         --extra-ldlibflags=*)
3197             add_ldlibflags $optval
3198         ;;
3199         --extra-libs=*)
3200             add_extralibs $optval
3201         ;;
3202         --disable-devices)
3203             disable $INDEV_LIST $OUTDEV_LIST
3204         ;;
3205         --enable-debug=*)
3206             debuglevel="$optval"
3207         ;;
3208         --disable-programs)
3209             disable $PROGRAM_LIST
3210         ;;
3211         --disable-everything)
3212             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3213         ;;
3214         --disable-all)
3215             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3216             disable $LIBRARY_LIST $PROGRAM_LIST doc
3217             enable avutil
3218         ;;
3219         --enable-random|--disable-random)
3220             action=${opt%%-random}
3221             do_random ${action#--} $COMPONENT_LIST
3222         ;;
3223         --enable-random=*|--disable-random=*)
3224             action=${opt%%-random=*}
3225             do_random ${action#--} $optval
3226         ;;
3227         --enable-*=*|--disable-*=*)
3228             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3229             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3230             eval list=\$$(toupper $thing)_LIST
3231             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3232             list=$(filter "$name" $list)
3233             [ "$list" = "" ] && warn "Option $opt did not match anything"
3234             $action $list
3235         ;;
3236         --enable-?*|--disable-?*)
3237             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3238             if is_in $option $COMPONENT_LIST; then
3239                 test $action = disable && action=unset
3240                 eval $action \$$(toupper ${option%s})_LIST
3241             elif is_in $option $CMDLINE_SELECT; then
3242                 $action $option
3243             else
3244                 die_unknown $opt
3245             fi
3246         ;;
3247         --list-*)
3248             NAME="${opt#--list-}"
3249             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3250             NAME=${NAME%s}
3251             eval show_list $NAME \$$(toupper $NAME)_LIST
3252         ;;
3253         --help|-h) show_help
3254         ;;
3255         --fatal-warnings) enable fatal_warnings
3256         ;;
3257         *)
3258             optname="${opt%%=*}"
3259             optname="${optname#--}"
3260             optname=$(echo "$optname" | sed 's/-/_/g')
3261             if is_in $optname $CMDLINE_SET; then
3262                 eval $optname='$optval'
3263             elif is_in $optname $CMDLINE_APPEND; then
3264                 append $optname "$optval"
3265             else
3266                 die_unknown $opt
3267             fi
3268         ;;
3269     esac
3270 done
3271
3272 for e in $env; do
3273     eval "export $e"
3274 done
3275
3276 disabled logging && logfile=/dev/null
3277
3278 # Disable all the library-specific components if the library itself
3279 # is disabled, see AVCODEC_LIST and following _LIST variables.
3280
3281 disable_components(){
3282     disabled ${1} && disable $(
3283         eval components="\$$(toupper ${1})_COMPONENTS"
3284         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3285     )
3286 }
3287
3288 map 'disable_components $v' $LIBRARY_LIST
3289
3290 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3291 set >> $logfile
3292
3293 test -n "$valgrind" && toolchain="valgrind-memcheck"
3294
3295 case "$toolchain" in
3296     clang-asan)
3297         cc_default="clang"
3298         add_cflags  -fsanitize=address
3299         add_ldflags -fsanitize=address
3300     ;;
3301     clang-tsan)
3302         cc_default="clang"
3303         add_cflags  -fsanitize=thread -pie
3304         add_ldflags -fsanitize=thread -pie
3305     ;;
3306     clang-usan)
3307         cc_default="clang"
3308         add_cflags  -fsanitize=undefined
3309         add_ldflags -fsanitize=undefined
3310     ;;
3311     gcc-asan)
3312         cc_default="gcc"
3313         add_cflags  -fsanitize=address
3314         add_ldflags -fsanitize=address
3315     ;;
3316     gcc-tsan)
3317         cc_default="gcc"
3318         add_cflags  -fsanitize=thread -pie -fPIC
3319         add_ldflags -fsanitize=thread -pie -fPIC
3320     ;;
3321     gcc-usan)
3322         cc_default="gcc"
3323         add_cflags  -fsanitize=undefined
3324         add_ldflags -fsanitize=undefined
3325     ;;
3326     valgrind-massif)
3327         target_exec_default=${valgrind:-"valgrind"}
3328         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"
3329     ;;
3330     valgrind-memcheck)
3331         target_exec_default=${valgrind:-"valgrind"}
3332         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3333     ;;
3334     msvc)
3335         # Check whether the current MSVC version needs the C99 converter.
3336         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3337         # support enough of C99 to build ffmpeg. Default to the new
3338         # behaviour if the regexp was unable to match anything, since this
3339         # successfully parses the version number of existing supported
3340         # versions that require the converter (MSVC 2010 and 2012).
3341         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3342         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3343             cc_default="cl"
3344         else
3345             cc_default="c99wrap cl"
3346         fi
3347         ld_default="$source_path/compat/windows/mslink"
3348         nm_default="dumpbin -symbols"
3349         ar_default="lib"
3350         case "$arch" in
3351         arm*)
3352             as_default="armasm"
3353             ;;
3354         esac
3355         target_os_default="win32"
3356         # Use a relative path for TMPDIR. This makes sure all the
3357         # ffconf temp files are written with a relative path, avoiding
3358         # issues with msys/win32 path conversion for MSVC parameters
3359         # such as -Fo<file> or -out:<file>.
3360         TMPDIR=.
3361     ;;
3362     icl)
3363         cc_default="icl"
3364         ld_default="xilink"
3365         nm_default="dumpbin -symbols"
3366         ar_default="xilib"
3367         target_os_default="win32"
3368         TMPDIR=.
3369     ;;
3370     gcov)
3371         add_cflags  -fprofile-arcs -ftest-coverage
3372         add_ldflags -fprofile-arcs -ftest-coverage
3373     ;;
3374     hardened)
3375         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3376         add_cflags   -fno-strict-overflow -fstack-protector-all
3377         add_ldflags  -Wl,-z,relro -Wl,-z,now
3378     ;;
3379     ?*)
3380         die "Unknown toolchain $toolchain"
3381     ;;
3382 esac
3383
3384 test -n "$cross_prefix" && enable cross_compile
3385
3386 if enabled cross_compile; then
3387     test -n "$arch" && test -n "$target_os" ||
3388         die "Must specify target arch and OS when cross-compiling"
3389 fi
3390
3391 ar_default="${cross_prefix}${ar_default}"
3392 cc_default="${cross_prefix}${cc_default}"
3393 cxx_default="${cross_prefix}${cxx_default}"
3394 nm_default="${cross_prefix}${nm_default}"
3395 pkg_config_default="${cross_prefix}${pkg_config_default}"
3396 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3397     ranlib_default="${cross_prefix}${ranlib_default} -D"
3398 else
3399     ranlib_default="${cross_prefix}${ranlib_default}"
3400 fi
3401 strip_default="${cross_prefix}${strip_default}"
3402 windres_default="${cross_prefix}${windres_default}"
3403
3404 sysinclude_default="${sysroot}/usr/include"
3405
3406 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3407     target_exec target_os yasmexe
3408 enabled cross_compile || host_cc_default=$cc
3409 set_default host_cc
3410
3411 pkg_config_fail_message=""
3412 if ! $pkg_config --version >/dev/null 2>&1; then
3413     warn "$pkg_config not found, library detection may fail."
3414     pkg_config=false
3415 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3416     pkg_config_fail_message="
3417 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3418 fi
3419
3420 if test $doxygen != $doxygen_default && \
3421   ! $doxygen --version >/dev/null 2>&1; then
3422     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3423 fi
3424
3425 exesuf() {
3426     case $1 in
3427         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3428     esac
3429 }
3430
3431 EXESUF=$(exesuf $target_os)
3432 HOSTEXESUF=$(exesuf $host_os)
3433
3434 # set temporary file name
3435 : ${TMPDIR:=$TEMPDIR}
3436 : ${TMPDIR:=$TMP}
3437 : ${TMPDIR:=/tmp}
3438
3439 if [ -n "$tempprefix" ] ; then
3440     mktemp(){
3441         echo $tempprefix.${HOSTNAME}.${UID}
3442     }
3443 elif ! check_cmd mktemp -u XXXXXX; then
3444     # simple replacement for missing mktemp
3445     # NOT SAFE FOR GENERAL USE
3446     mktemp(){
3447         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3448     }
3449 fi
3450
3451 tmpfile(){
3452     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3453         (set -C; exec > $tmp) 2>/dev/null ||
3454         die "Unable to create temporary file in $TMPDIR."
3455     append TMPFILES $tmp
3456     eval $1=$tmp
3457 }
3458
3459 trap 'rm -f -- $TMPFILES' EXIT
3460
3461 tmpfile TMPASM .asm
3462 tmpfile TMPC   .c
3463 tmpfile TMPCPP .cpp
3464 tmpfile TMPE   $EXESUF
3465 tmpfile TMPH   .h
3466 tmpfile TMPM   .m
3467 tmpfile TMPO   .o
3468 tmpfile TMPS   .S
3469 tmpfile TMPSH  .sh
3470 tmpfile TMPV   .ver
3471
3472 unset -f mktemp
3473
3474 chmod +x $TMPE
3475
3476 # make sure we can execute files in $TMPDIR
3477 cat > $TMPSH 2>> $logfile <<EOF
3478 #! /bin/sh
3479 EOF
3480 chmod +x $TMPSH >> $logfile 2>&1
3481 if ! $TMPSH >> $logfile 2>&1; then
3482     cat <<EOF
3483 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3484 variable to another directory and make sure that it is not mounted noexec.
3485 EOF
3486     die "Sanity test failed."
3487 fi
3488
3489 armasm_flags(){
3490     for flag; do
3491         case $flag in
3492             # Filter out MSVC cl.exe options from cflags that shouldn't
3493             # be passed to gas-preprocessor
3494             -M[TD]*)                                            ;;
3495             *)                  echo $flag                      ;;
3496         esac
3497    done
3498 }
3499
3500 ccc_flags(){
3501     for flag; do
3502         case $flag in
3503             -std=c99)           echo -c99                       ;;
3504             -mcpu=*)            echo -arch ${flag#*=}           ;;
3505             -mieee)             echo -ieee                      ;;
3506             -O*|-fast)          echo $flag                      ;;
3507             -fno-math-errno)    echo -assume nomath_errno       ;;
3508             -g)                 echo -g3                        ;;
3509             -Wall)              echo -msg_enable level2         ;;
3510             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3511             -Wl,*)              echo $flag                      ;;
3512             -f*|-W*)                                            ;;
3513             *)                  echo $flag                      ;;
3514         esac
3515    done
3516 }
3517
3518 cparser_flags(){
3519     for flag; do
3520         case $flag in
3521             -Wno-switch)             echo -Wno-switch-enum ;;
3522             -Wno-format-zero-length) ;;
3523             -Wdisabled-optimization) ;;
3524             -Wno-pointer-sign)       echo -Wno-other ;;
3525             *)                       echo $flag ;;
3526         esac
3527     done
3528 }
3529
3530 msvc_common_flags(){
3531     for flag; do
3532         case $flag in
3533             # In addition to specifying certain flags under the compiler
3534             # specific filters, they must be specified here as well or else the
3535             # generic catch all at the bottom will print the original flag.
3536             -Wall)                ;;
3537             -std=c99)             ;;
3538             # Common flags
3539             -fomit-frame-pointer) ;;
3540             -g)                   echo -Z7 ;;
3541             -fno-math-errno)      ;;
3542             -fno-common)          ;;
3543             -fno-signed-zeros)    ;;
3544             -fPIC)                ;;
3545             -mthumb)              ;;
3546             -march=*)             ;;
3547             -lz)                  echo zlib.lib ;;
3548             -lavifil32)           echo vfw32.lib ;;
3549             -lavicap32)           echo vfw32.lib user32.lib ;;
3550             -l*)                  echo ${flag#-l}.lib ;;
3551             -LARGEADDRESSAWARE)   echo $flag ;;
3552             -L*)                  echo -libpath:${flag#-L} ;;
3553             *)                    echo $flag ;;
3554         esac
3555     done
3556 }
3557
3558 msvc_flags(){
3559     msvc_common_flags "$@"
3560     for flag; do
3561         case $flag in
3562             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3563                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3564                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3565                                        -wd4307 \
3566                                        -wd4273 -wd4554 -wd4701 ;;
3567         esac
3568     done
3569 }
3570
3571 icl_flags(){
3572     msvc_common_flags "$@"
3573     for flag; do
3574         case $flag in
3575             # Despite what Intel's documentation says -Wall, which is supported
3576             # on Windows, does enable remarks so disable them here.
3577             -Wall)                echo $flag -Qdiag-disable:remark ;;
3578             -std=c99)             echo -Qstd=c99 ;;
3579             -flto)                echo -ipo ;;
3580         esac
3581     done
3582 }
3583
3584 icc_flags(){
3585     for flag; do
3586         case $flag in
3587             -flto)                echo -ipo ;;
3588             *)                    echo $flag ;;
3589         esac
3590     done
3591 }
3592
3593 pgi_flags(){
3594     for flag; do
3595         case $flag in
3596             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3597             -fomit-frame-pointer) echo -Mnoframe ;;
3598             -g)                   echo -gopt ;;
3599             *)                    echo $flag ;;
3600         esac
3601     done
3602 }
3603
3604 suncc_flags(){
3605     for flag; do
3606         case $flag in
3607             -march=*|-mcpu=*)
3608                 case "${flag#*=}" in
3609                     native)                   echo -xtarget=native       ;;
3610                     v9|niagara)               echo -xarch=sparc          ;;
3611                     ultrasparc)               echo -xarch=sparcvis       ;;
3612                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3613                     i586|pentium)             echo -xchip=pentium        ;;
3614                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3615                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3616                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3617                     pentium4*)          echo -xtarget=pentium4           ;;
3618                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3619                     *-sse3)             echo -xarch=sse3                 ;;
3620                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3621                     bonnell)                   echo -xarch=ssse3         ;;
3622                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3623                     westmere)                  echo -xtarget=westmere    ;;
3624                     silvermont)                echo -xarch=sse4_2        ;;
3625                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3626                     core-avx*|ivybridge|haswell|broadwell)
3627                                                echo -xarch=avx           ;;
3628                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3629                     btver1)                    echo -xarch=amdsse4a      ;;
3630                     btver2|bdver*)             echo -xarch=avx           ;;
3631                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3632                     k8|opteron|athlon64|athlon-fx)
3633                                                echo -xarch=sse2a         ;;
3634                     athlon*)                   echo -xarch=pentium_proa  ;;
3635                 esac
3636                 ;;
3637             -std=c99)             echo -xc99              ;;
3638             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3639             -fPIC)                echo -KPIC -xcode=pic32 ;;
3640             -W*,*)                echo $flag              ;;
3641             -f*-*|-W*|-mimpure-text)                      ;;
3642             -shared)              echo -G                 ;;
3643             *)                    echo $flag              ;;
3644         esac
3645     done
3646 }
3647
3648 tms470_flags(){
3649     for flag; do
3650         case $flag in
3651             -march=*|-mcpu=*)
3652                 case "${flag#*=}" in
3653                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3654                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3655                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3656                     armv6*|arm11*)          echo -mv=6   ;;
3657                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3658                                             echo -mv=5e  ;;
3659                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3660                 esac
3661                 ;;
3662             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3663             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3664             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3665             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3666             -msoft-float)   echo --float_support=vfplib       ;;
3667             -O[0-3]|-mf=*)  echo $flag                        ;;
3668             -g)             echo -g -mn                       ;;
3669             -pds=*)         echo $flag                        ;;
3670             -D*|-I*)        echo $flag                        ;;
3671             --gcc|--abi=*)  echo $flag                        ;;
3672             -me)            echo $flag                        ;;
3673         esac
3674     done
3675 }
3676
3677 probe_cc(){
3678     pfx=$1
3679     _cc=$2
3680     first=$3
3681
3682     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3683     unset _ld_o _ldflags _ld_lib _ld_path
3684     unset _depflags _DEPCMD _DEPFLAGS
3685     _flags_filter=echo
3686
3687     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3688         true # no-op to avoid reading stdin in following checks
3689     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3690         _type=llvm_gcc
3691         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3692         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3693         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3694         _cflags_speed='-O3'
3695         _cflags_size='-Os'
3696     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3697         _type=gcc
3698         gcc_version=$($_cc --version | head -n1)
3699         gcc_basever=$($_cc -dumpversion)
3700         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3701         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3702         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3703         case $gcc_basever in
3704             2) ;;
3705             2.*) ;;
3706             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3707         esac
3708         if [ "$first" = true ]; then
3709             case $gcc_basever in
3710                 4.2*)
3711                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3712             esac
3713         fi
3714         _cflags_speed='-O3'
3715         _cflags_size='-Os'
3716     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3717         _type=icc
3718         _ident=$($_cc --version | head -n1)
3719         _depflags='-MMD'
3720         _cflags_speed='-O3'
3721         _cflags_size='-Os'
3722         _cflags_noopt='-O1'
3723         _flags_filter=icc_flags
3724     elif $_cc -v 2>&1 | grep -q xlc; then
3725         _type=xlc
3726         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3727         _cflags_speed='-O5'
3728         _cflags_size='-O5 -qcompact'
3729     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3730         _type=ccc
3731         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3732         _DEPFLAGS='-M'
3733         _cflags_speed='-fast'
3734         _cflags_size='-O1'
3735         _flags_filter=ccc_flags
3736     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3737         test -d "$sysroot" || die "No valid sysroot specified."
3738         _type=armcc
3739         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3740         armcc_conf="$PWD/armcc.conf"
3741         $_cc --arm_linux_configure                 \
3742              --arm_linux_config_file="$armcc_conf" \
3743              --configure_sysroot="$sysroot"        \
3744              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3745              die "Error creating armcc configuration file."
3746         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3747         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3748         as_default="${cross_prefix}gcc"
3749         _depflags='-MMD'
3750         _cflags_speed='-O3'
3751         _cflags_size='-Os'
3752     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3753         _type=tms470
3754         _ident=$($_cc -version | head -n1 | tr -s ' ')
3755         _flags='--gcc --abi=eabi -me'
3756         _cc_e='-ppl -fe=$@'
3757         _cc_o='-fe=$@'
3758         _depflags='-ppa -ppd=$(@:.o=.d)'
3759         _cflags_speed='-O3 -mf=5'
3760         _cflags_size='-O3 -mf=2'
3761         _flags_filter=tms470_flags
3762     elif $_cc -v 2>&1 | grep -q clang; then
3763         _type=clang
3764         _ident=$($_cc --version 2>/dev/null | head -n1)
3765         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3766         _cflags_speed='-O3'
3767         _cflags_size='-Os'
3768     elif $_cc -V 2>&1 | grep -q Sun; then
3769         _type=suncc
3770         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3771         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3772         _DEPFLAGS='-xM1 -xc99'
3773         _ldflags='-std=c99'
3774         _cflags_speed='-O5'
3775         _cflags_size='-O5 -xspace'
3776         _flags_filter=suncc_flags
3777     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3778         _type=pathscale
3779         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3780         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3781         _cflags_speed='-O2'
3782         _cflags_size='-Os'
3783         _flags_filter='filter_out -Wdisabled-optimization'
3784     elif $_cc -v 2>&1 | grep -q Open64; then
3785         _type=open64
3786         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3787         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3788         _cflags_speed='-O2'
3789         _cflags_size='-Os'
3790         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3791     elif $_cc -V 2>&1 | grep -q Portland; then
3792         _type=pgi
3793         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3794         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3795         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3796         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3797         _cflags_noopt="-O"
3798         _flags_filter=pgi_flags
3799     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3800         _type=armasm
3801         _ident=$($_cc | head -n1)
3802         # 4509: "This form of conditional instruction is deprecated"
3803         _flags="-nologo -ignore 4509"
3804         _flags_filter=armasm_flags
3805     elif $_cc 2>&1 | grep -q Intel; then
3806         _type=icl
3807         _ident=$($_cc 2>&1 | head -n1)
3808         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3809         # Not only is O3 broken on 13.x+ but it is slower on all previous
3810         # versions (tested) as well.
3811         _cflags_speed="-O2"
3812         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3813         if $_cc 2>&1 | grep -q Linker; then
3814             _ld_o='-out:$@'
3815         else
3816             _ld_o='-Fe$@'
3817         fi
3818         _cc_o='-Fo$@'
3819         _cc_e='-P'
3820         _flags_filter=icl_flags
3821         _ld_lib='lib%.a'
3822         _ld_path='-libpath:'
3823         # -Qdiag-error to make icl error when seeing certain unknown arguments
3824         _flags='-nologo -Qdiag-error:4044,10157'
3825         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3826         # with MSVC which enables it by default.
3827         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3828         disable stripping
3829     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3830         _type=msvc
3831         _ident=$($_cc 2>&1 | head -n1)
3832         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3833         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3834         _cflags_speed="-O2"
3835         _cflags_size="-O1"
3836         if $_cc -nologo- 2>&1 | grep -q Linker; then
3837             _ld_o='-out:$@'
3838         else
3839             _ld_o='-Fe$@'
3840         fi
3841         _cc_o='-Fo$@'
3842         _cc_e='-P -Fi$@'
3843         _flags_filter=msvc_flags
3844         _ld_lib='lib%.a'
3845         _ld_path='-libpath:'
3846         _flags='-nologo'
3847         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3848         disable stripping
3849     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3850         _type=cparser
3851         _ident=$($_cc --version | head -n1)
3852         _depflags='-MMD'
3853         _cflags_speed='-O4'
3854         _cflags_size='-O2'
3855         _flags_filter=cparser_flags
3856     fi
3857
3858     eval ${pfx}_type=\$_type
3859     eval ${pfx}_ident=\$_ident
3860 }
3861
3862 set_ccvars(){
3863     eval ${1}_C=\${_cc_c-\${${1}_C}}
3864     eval ${1}_E=\${_cc_e-\${${1}_E}}
3865     eval ${1}_O=\${_cc_o-\${${1}_O}}
3866
3867     if [ -n "$_depflags" ]; then
3868         eval ${1}_DEPFLAGS=\$_depflags
3869     else
3870         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3871         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3872         eval DEP${1}FLAGS=\$_flags
3873     fi
3874 }
3875
3876 probe_cc cc "$cc" "true"
3877 cflags_filter=$_flags_filter
3878 cflags_speed=$_cflags_speed
3879 cflags_size=$_cflags_size
3880 cflags_noopt=$_cflags_noopt
3881 add_cflags $_flags $_cflags
3882 cc_ldflags=$_ldflags
3883 set_ccvars CC
3884
3885 probe_cc hostcc "$host_cc"
3886 host_cflags_filter=$_flags_filter
3887 add_host_cflags  $_flags $_cflags
3888 set_ccvars HOSTCC
3889
3890 test -n "$cc_type" && enable $cc_type ||
3891     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3892
3893 : ${as_default:=$cc}
3894 : ${objcc_default:=$cc}
3895 : ${dep_cc_default:=$cc}
3896 : ${ld_default:=$cc}
3897 : ${host_ld_default:=$host_cc}
3898 set_default ar as objcc dep_cc ld host_ld windres
3899
3900 probe_cc as "$as"
3901 asflags_filter=$_flags_filter
3902 add_asflags $_flags $_cflags
3903 set_ccvars AS
3904
3905 probe_cc objcc "$objcc"
3906 objcflags_filter=$_flags_filter
3907 add_objcflags $_flags $_cflags
3908 set_ccvars OBJC
3909
3910 probe_cc ld "$ld"
3911 ldflags_filter=$_flags_filter
3912 add_ldflags $_flags $_ldflags
3913 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3914 LD_O=${_ld_o-$LD_O}
3915 LD_LIB=${_ld_lib-$LD_LIB}
3916 LD_PATH=${_ld_path-$LD_PATH}
3917
3918 probe_cc hostld "$host_ld"
3919 host_ldflags_filter=$_flags_filter
3920 add_host_ldflags $_flags $_ldflags
3921 HOSTLD_O=${_ld_o-$HOSTLD_O}
3922
3923 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3924     probe_cc depcc "$dep_cc"
3925     CCDEP=${_DEPCMD:-$DEPCMD}
3926     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3927     DEPCCFLAGS=$_flags
3928 fi
3929
3930 if $ar 2>&1 | grep -q Microsoft; then
3931     arflags="-nologo"
3932     ar_o='-out:$@'
3933 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3934     arflags="rq"
3935     ar_o='$@'
3936 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3937     arflags='-Xany -r -c'
3938     ar_o='$@'
3939 elif $ar 2>&1 | grep -q "\[D\] "; then
3940     arflags="rcD"
3941     ar_o='$@'
3942 else
3943     arflags="rc"
3944     ar_o='$@'
3945 fi
3946
3947 add_cflags $extra_cflags
3948 add_cxxflags $extra_cxxflags
3949 add_objcflags $extra_objcflags
3950 add_asflags $extra_cflags
3951
3952 if test -n "$sysroot"; then
3953     case "$cc_type" in
3954         gcc|llvm_gcc|clang)
3955             add_cppflags --sysroot="$sysroot"
3956             add_ldflags --sysroot="$sysroot"
3957 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3958             add_cppflags -isysroot "$sysroot"
3959             add_ldflags -isysroot "$sysroot"
3960         ;;
3961         tms470)
3962             add_cppflags -I"$sysinclude"
3963             add_ldflags  --sysroot="$sysroot"
3964         ;;
3965     esac
3966 fi
3967
3968 if test "$cpu" = host; then
3969     enabled cross_compile &&
3970         die "--cpu=host makes no sense when cross-compiling."
3971
3972     case "$cc_type" in
3973         gcc|llvm_gcc)
3974             check_native(){
3975                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3976                 sed -n "/cc1.*$1=/{
3977                             s/.*$1=\\([^ ]*\\).*/\\1/
3978                             p
3979                             q
3980                         }" $TMPE
3981             }
3982             cpu=$(check_native -march || check_native -mcpu)
3983         ;;
3984         clang)
3985             check_native(){
3986                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3987                 sed -n "/cc1.*-target-cpu /{
3988                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
3989                             p
3990                             q
3991                         }" $TMPE
3992             }
3993             cpu=$(check_native -march)
3994         ;;
3995     esac
3996
3997     test "${cpu:-host}" = host &&
3998         die "--cpu=host not supported with compiler $cc"
3999 fi
4000
4001 # Deal with common $arch aliases
4002 case "$arch" in
4003     aarch64|arm64)
4004         arch="aarch64"
4005     ;;
4006     arm*|iPad*|iPhone*)
4007         arch="arm"
4008     ;;
4009     mips*|IP*)
4010         arch="mips"
4011     ;;
4012     parisc*|hppa*)
4013         arch="parisc"
4014     ;;
4015     "Power Macintosh"|ppc*|powerpc*)
4016         arch="ppc"
4017     ;;
4018     s390|s390x)
4019         arch="s390"
4020     ;;
4021     sh4|sh)
4022         arch="sh4"
4023     ;;
4024     sun4u|sparc*)
4025         arch="sparc"
4026     ;;
4027     tilegx|tile-gx)
4028         arch="tilegx"
4029     ;;
4030     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4031         arch="x86"
4032     ;;
4033 esac
4034
4035 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4036 enable $arch
4037
4038 # Add processor-specific flags
4039 if enabled aarch64; then
4040
4041     case $cpu in
4042         armv*)
4043             cpuflags="-march=$cpu"
4044         ;;
4045         *)
4046             cpuflags="-mcpu=$cpu"
4047         ;;
4048     esac
4049
4050 elif enabled alpha; then
4051
4052     cpuflags="-mcpu=$cpu"
4053
4054 elif enabled arm; then
4055
4056     check_arm_arch() {
4057         check_cpp_condition stddef.h \
4058             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4059             $cpuflags
4060     }
4061
4062     probe_arm_arch() {
4063         if   check_arm_arch 4;        then echo armv4;
4064         elif check_arm_arch 4T;       then echo armv4t;
4065         elif check_arm_arch 5;        then echo armv5;
4066         elif check_arm_arch 5E;       then echo armv5e;
4067         elif check_arm_arch 5T;       then echo armv5t;
4068         elif check_arm_arch 5TE;      then echo armv5te;
4069         elif check_arm_arch 5TEJ;     then echo armv5te;
4070         elif check_arm_arch 6;        then echo armv6;
4071         elif check_arm_arch 6J;       then echo armv6j;
4072         elif check_arm_arch 6K;       then echo armv6k;
4073         elif check_arm_arch 6Z;       then echo armv6z;
4074         elif check_arm_arch 6ZK;      then echo armv6zk;
4075         elif check_arm_arch 6T2;      then echo armv6t2;
4076         elif check_arm_arch 7;        then echo armv7;
4077         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4078         elif check_arm_arch 7S;       then echo armv7-a;
4079         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4080         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4081         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4082         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4083         fi
4084     }
4085
4086     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4087
4088     case $cpu in
4089         armv*)
4090             cpuflags="-march=$cpu"
4091             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4092         ;;
4093         *)
4094             cpuflags="-mcpu=$cpu"
4095             case $cpu in
4096                 cortex-a*)                               subarch=armv7a  ;;
4097                 cortex-r*)                               subarch=armv7r  ;;
4098                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4099                 arm11*)                                  subarch=armv6   ;;
4100                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4101                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4102                 *)                             subarch=$(probe_arm_arch) ;;
4103             esac
4104         ;;
4105     esac
4106
4107     case "$subarch" in
4108         armv5t*)    enable fast_clz                ;;
4109         armv[6-8]*)
4110             enable fast_clz
4111             disabled fast_unaligned || enable fast_unaligned
4112             ;;
4113     esac
4114
4115 elif enabled avr32; then
4116
4117     case $cpu in
4118         ap7[02]0[0-2])
4119             subarch="avr32_ap"
4120             cpuflags="-mpart=$cpu"
4121         ;;
4122         ap)
4123             subarch="avr32_ap"
4124             cpuflags="-march=$cpu"
4125         ;;
4126         uc3[ab]*)
4127             subarch="avr32_uc"
4128             cpuflags="-mcpu=$cpu"
4129         ;;
4130         uc)
4131             subarch="avr32_uc"
4132             cpuflags="-march=$cpu"
4133         ;;
4134     esac
4135
4136 elif enabled bfin; then
4137
4138     cpuflags="-mcpu=$cpu"
4139
4140 elif enabled mips; then
4141
4142     cpuflags="-march=$cpu"
4143
4144     case $cpu in
4145         24kc)
4146             disable mips32r6
4147             disable mips64r2
4148             disable mips64r6
4149             disable mipsfpu
4150             disable mipsdsp
4151             disable mipsdspr2
4152             disable msa
4153         ;;
4154         24kf*)
4155             disable mips32r6
4156             disable mips64r2
4157             disable mips64r6
4158             disable mipsdsp
4159             disable mipsdspr2
4160             disable msa
4161         ;;
4162         24kec|34kc|1004kc)
4163             disable mips32r6
4164             disable mips64r2
4165             disable mips64r6
4166             disable mipsfpu
4167             disable mipsdspr2
4168             disable msa
4169         ;;
4170         24kef*|34kf*|1004kf*)
4171             disable mips32r6
4172             disable mips64r2
4173             disable mips64r6
4174             disable mipsdspr2
4175             disable msa
4176         ;;
4177         74kc)
4178             disable mips32r6
4179             disable mips64r2
4180             disable mips64r6
4181             disable mipsfpu
4182             disable msa
4183         ;;
4184         74kf)
4185             disable mips32r6
4186             disable mips64r2
4187             disable mips64r6
4188             disable msa
4189         ;;
4190         p5600)
4191             disable mips32r6
4192             disable mips64r2
4193             disable mips64r6
4194             disable mipsdsp
4195             disable mipsdspr2
4196             check_cflags "-mtune=p5600" &&
4197             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4198             add_asflags "-mfp64"
4199         ;;
4200         i6400)
4201             disable mips32r2
4202             disable mips32r6
4203             disable mips64r2
4204             disable mipsdsp
4205             disable mipsdspr2
4206             check_cflags "-mtune=i6400 -mabi=64" &&
4207             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4208             check_ldflags "-mabi=64" &&
4209             add_asflags "-mfp64"
4210         ;;
4211         loongson*)
4212             disable mips32r2
4213             disable mips32r6
4214             disable mips64r2
4215             disable mips64r6
4216             disable mipsfpu
4217             disable mipsdsp
4218             disable mipsdspr2
4219             disable msa
4220             enable local_aligned_8 local_aligned_16 local_aligned_32
4221             enable simd_align_16
4222             enable fast_64bit
4223             enable fast_clz
4224             enable fast_cmov
4225             enable fast_unaligned
4226             disable aligned_stack
4227             case $cpu in
4228                 loongson3*)
4229                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4230                 ;;
4231                 loongson2e)
4232                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4233                 ;;
4234                 loongson2f)
4235                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4236                 ;;
4237             esac
4238         ;;
4239         generic)
4240             disable mips64r6
4241             disable msa
4242         ;;
4243         *)
4244             disable mipsfpu
4245             disable mips32r2
4246             disable mips32r6
4247             disable mips64r2
4248             disable mips64r6
4249             disable mipsdsp
4250             disable mipsdspr2
4251             disable msa
4252         ;;
4253     esac
4254
4255 elif enabled ppc; then
4256
4257     disable ldbrx
4258
4259     case $(tolower $cpu) in
4260         601|ppc601|powerpc601)
4261             cpuflags="-mcpu=601"
4262             disable altivec
4263         ;;
4264         603*|ppc603*|powerpc603*)
4265             cpuflags="-mcpu=603"
4266             disable altivec
4267         ;;
4268         604*|ppc604*|powerpc604*)
4269             cpuflags="-mcpu=604"
4270             disable altivec
4271         ;;
4272         g3|75*|ppc75*|powerpc75*)
4273             cpuflags="-mcpu=750"
4274             disable altivec
4275         ;;
4276         g4|745*|ppc745*|powerpc745*)
4277             cpuflags="-mcpu=7450"
4278             disable vsx
4279         ;;
4280         74*|ppc74*|powerpc74*)
4281             cpuflags="-mcpu=7400"
4282             disable vsx
4283         ;;
4284         g5|970|ppc970|powerpc970)
4285             cpuflags="-mcpu=970"
4286             disable vsx
4287         ;;
4288         power[3-6]*)
4289             cpuflags="-mcpu=$cpu"
4290             disable vsx
4291         ;;
4292         power[7-8]*)
4293             cpuflags="-mcpu=$cpu"
4294         ;;
4295         cell)
4296             cpuflags="-mcpu=cell"
4297             enable ldbrx
4298             disable vsx
4299         ;;
4300         e500mc)
4301             cpuflags="-mcpu=e500mc"
4302             disable altivec
4303         ;;
4304         e500v2)
4305             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4306             disable altivec
4307             disable dcbzl
4308         ;;
4309         e500)
4310             cpuflags="-mcpu=8540 -mhard-float"
4311             disable altivec
4312             disable dcbzl
4313         ;;
4314     esac
4315
4316 elif enabled sparc; then
4317
4318     case $cpu in
4319         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4320             cpuflags="-mcpu=$cpu"
4321         ;;
4322         ultrasparc*|niagara[234])
4323             cpuflags="-mcpu=$cpu"
4324         ;;
4325     esac
4326
4327 elif enabled x86; then
4328
4329     case $cpu in
4330         i[345]86|pentium)
4331             cpuflags="-march=$cpu"
4332             disable i686
4333             disable mmx
4334         ;;
4335         # targets that do NOT support nopl and conditional mov (cmov)
4336         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4337             cpuflags="-march=$cpu"
4338             disable i686
4339         ;;
4340         # targets that do support nopl and conditional mov (cmov)
4341         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4342         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4343             cpuflags="-march=$cpu"
4344             enable i686
4345             enable fast_cmov
4346         ;;
4347         # targets that do support conditional mov but on which it's slow
4348         pentium4|pentium4m|prescott|nocona)
4349             cpuflags="-march=$cpu"
4350             enable i686
4351             disable fast_cmov
4352         ;;
4353     esac
4354
4355 fi
4356
4357 if [ "$cpu" != generic ]; then
4358     add_cflags  $cpuflags
4359     add_asflags $cpuflags
4360     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4361 fi
4362
4363 # compiler sanity check
4364 check_exec <<EOF
4365 int main(void){ return 0; }
4366 EOF
4367 if test "$?" != 0; then
4368     echo "$cc is unable to create an executable file."
4369     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4370         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4371         echo "Only do this if you know what cross compiling means."
4372     fi
4373     die "C compiler test failed."
4374 fi
4375
4376 add_cppflags -D_ISOC99_SOURCE
4377 add_cxxflags -D__STDC_CONSTANT_MACROS
4378 check_cflags -std=c99
4379 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4380 #include <stdlib.h>
4381 EOF
4382 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4383 #include <stdlib.h>
4384 EOF
4385
4386 add_host_cppflags -D_ISOC99_SOURCE
4387 check_host_cflags -std=c99
4388 check_host_cflags -Wall
4389 check_host_cflags -O3
4390
4391 check_64bit(){
4392     arch32=$1
4393     arch64=$2
4394     expr=$3
4395     check_code cc "" "int test[2*($expr) - 1]" &&
4396         subarch=$arch64 || subarch=$arch32
4397 }
4398
4399 case "$arch" in
4400     aarch64|alpha|ia64)
4401         spic=$shared
4402     ;;
4403     mips)
4404         check_64bit mips mips64 '_MIPS_SIM > 1'
4405         spic=$shared
4406     ;;
4407     parisc)
4408         check_64bit parisc parisc64 'sizeof(void *) > 4'
4409         spic=$shared
4410     ;;
4411     ppc)
4412         check_64bit ppc ppc64 'sizeof(void *) > 4'
4413         spic=$shared
4414     ;;
4415     s390)
4416         check_64bit s390 s390x 'sizeof(void *) > 4'
4417         spic=$shared
4418     ;;
4419     sparc)
4420         check_64bit sparc sparc64 'sizeof(void *) > 4'
4421         spic=$shared
4422     ;;
4423     x86)
4424         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4425         # Treat x32 as x64 for now. Note it also needs spic=$shared
4426         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4427             subarch=x86_64
4428         if test "$subarch" = "x86_64"; then
4429             spic=$shared
4430         fi
4431     ;;
4432     ppc)
4433         check_cc <<EOF && subarch="ppc64"
4434         int test[(int)sizeof(char*) - 7];
4435 EOF
4436     ;;
4437 esac
4438
4439 enable $subarch
4440 enabled spic && enable_weak pic
4441
4442 # OS specific
4443 case $target_os in
4444     aix)
4445         SHFLAGS=-shared
4446         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4447         enabled shared && add_ldflags -Wl,-brtl
4448         ;;
4449     android)
4450         disable symver
4451         enable section_data_rel_ro
4452         SLIB_INSTALL_NAME='$(SLIBNAME)'
4453         SLIB_INSTALL_LINKS=
4454         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4455         ;;
4456     haiku)
4457         prefix_default="/boot/common"
4458         network_extralibs="-lnetwork"
4459         host_libs=
4460         ;;
4461     sunos)
4462         SHFLAGS='-shared -Wl,-h,$$(@F)'
4463         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4464         network_extralibs="-lsocket -lnsl"
4465         add_cppflags -D__EXTENSIONS__
4466         # When using suncc to build, the Solaris linker will mark
4467         # an executable with each instruction set encountered by
4468         # the Solaris assembler.  As our libraries contain their own
4469         # guards for processor-specific code, instead suppress
4470         # generation of the HWCAPS ELF section on Solaris x86 only.
4471         enabled_all suncc x86 &&
4472             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4473             add_ldflags -Wl,-M,mapfile
4474         nm_default='nm -P -g'
4475         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4476         ;;
4477     netbsd)
4478         disable symver
4479         oss_indev_extralibs="-lossaudio"
4480         oss_outdev_extralibs="-lossaudio"
4481         enabled gcc || check_ldflags -Wl,-zmuldefs
4482         ;;
4483     openbsd|bitrig)
4484         disable symver
4485         SHFLAGS='-shared'
4486         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4487         SLIB_INSTALL_LINKS=
4488         oss_indev_extralibs="-lossaudio"
4489         oss_outdev_extralibs="-lossaudio"
4490         ;;
4491     dragonfly)
4492         disable symver
4493         ;;
4494     freebsd)
4495         ;;
4496     bsd/os)
4497         add_extralibs -lpoll -lgnugetopt
4498         strip="strip -d"
4499         ;;
4500     darwin)
4501         enabled ppc && add_asflags -force_cpusubtype_ALL
4502         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4503         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4504         strip="${strip} -x"
4505         add_ldflags -Wl,-dynamic,-search_paths_first
4506         SLIBSUF=".dylib"
4507         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4508         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4509         objformat="macho"
4510         enabled x86_64 && objformat="macho64"
4511         enabled_any pic shared x86_64 ||
4512             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4513         ;;
4514     msys*)
4515         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4516         ;;
4517     mingw32*|mingw64*)
4518         if test $target_os = "mingw32ce"; then
4519             disable network
4520         else
4521             target_os=mingw32
4522         fi
4523         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4524         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4525         LIBTARGET=i386
4526         if enabled x86_64; then
4527             LIBTARGET="i386:x86-64"
4528         elif enabled arm; then
4529             LIBTARGET=arm-wince
4530         fi
4531         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4532         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4533         shlibdir_default="$bindir_default"
4534         SLIBPREF=""
4535         SLIBSUF=".dll"
4536         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4537         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4538         dlltool="${cross_prefix}dlltool"
4539         if check_cmd lib.exe -list; then
4540             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4541             if enabled x86_64; then
4542                 LIBTARGET=x64
4543             fi
4544         elif check_cmd $dlltool --version; then
4545             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4546         fi
4547         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4548         SLIB_INSTALL_LINKS=
4549         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4550         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4551         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4552         objformat="win32"
4553         ranlib=:
4554         enable dos_paths
4555         check_ldflags -Wl,--nxcompat,--dynamicbase
4556         # Lets work around some stupidity in binutils.
4557         # ld will strip relocations from executables even though we need them
4558         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4559         # however ld then forgets what the entry point should be (oops) so we
4560         # have to manually (re)set it.
4561         if enabled x86_32; then
4562             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4563         elif enabled x86_64; then
4564             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4565             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4566             # Set image base >4GB for extra entropy with HEASLR
4567             add_ldexeflags -Wl,--image-base,0x140000000
4568             append SHFLAGS -Wl,--image-base,0x180000000
4569         fi
4570         ;;
4571     win32|win64)
4572         disable symver
4573         if enabled shared; then
4574             # Link to the import library instead of the normal static library
4575             # for shared libs.
4576             LD_LIB='%.lib'
4577             # Cannot build both shared and static libs with MSVC or icl.
4578             disable static
4579         fi
4580         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4581         shlibdir_default="$bindir_default"
4582         SLIBPREF=""
4583         SLIBSUF=".dll"
4584         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4585         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4586         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4587         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4588         SLIB_INSTALL_LINKS=
4589         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4590         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4591         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4592         objformat="win32"
4593         ranlib=:
4594         enable dos_paths
4595         ;;
4596     cygwin*)
4597         target_os=cygwin
4598         shlibdir_default="$bindir_default"
4599         SLIBPREF="cyg"
4600         SLIBSUF=".dll"
4601         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4602         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4603         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4604         SLIB_INSTALL_LINKS=
4605         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4606         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4607         objformat="win32"
4608         enable dos_paths
4609         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4610         ;;
4611     *-dos|freedos|opendos)
4612         network_extralibs="-lsocket"
4613         objformat="coff"
4614         enable dos_paths
4615         add_cppflags -U__STRICT_ANSI__
4616         ;;
4617     linux)
4618         enable dv1394
4619         enable section_data_rel_ro
4620         ;;
4621     irix*)
4622         target_os=irix
4623         ranlib="echo ignoring ranlib"
4624         ;;
4625     os/2*)
4626         strip="lxlite -CS"
4627         ln_s="cp -f"
4628         objformat="aout"
4629         add_cppflags -D_GNU_SOURCE
4630         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4631         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4632         LIBSUF="_s.a"
4633         SLIBPREF=""
4634         SLIBSUF=".dll"
4635         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4636         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4637         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4638             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4639             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4640             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4641             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4642         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4643             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4644         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4645         enable dos_paths
4646         enable_weak os2threads
4647         ;;
4648     gnu/kfreebsd)
4649         add_cppflags -D_BSD_SOURCE
4650         ;;
4651     gnu)
4652         ;;
4653     qnx)
4654         add_cppflags -D_QNX_SOURCE
4655         network_extralibs="-lsocket"
4656         ;;
4657     symbian)
4658         SLIBSUF=".dll"
4659         enable dos_paths
4660         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4661         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4662         add_ldflags -Wl,--target1-abs,--no-undefined \
4663                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4664                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4665         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4666                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4667                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4668         ;;
4669     osf1)
4670         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4671         ;;
4672     minix)
4673         ;;
4674     plan9)
4675         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4676                      -D_REENTRANT_SOURCE        \
4677                      -D_RESEARCH_SOURCE         \
4678                      -DFD_SETSIZE=96            \
4679                      -DHAVE_SOCK_OPTS
4680         add_compat strtod.o strtod=avpriv_strtod
4681         network_extralibs='-lbsd'
4682         exeobjs=compat/plan9/main.o
4683         disable ffserver
4684         cp_f='cp'
4685         ;;
4686     none)
4687         ;;
4688     *)
4689         die "Unknown OS '$target_os'."
4690         ;;
4691 esac
4692
4693 # determine libc flavour
4694
4695 probe_libc(){
4696     pfx=$1
4697     pfx_no_=${pfx%_}
4698     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4699     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4700         eval ${pfx}libc_type=uclibc
4701         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4702     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4703         eval ${pfx}libc_type=glibc
4704         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4705     # MinGW headers can be installed on Cygwin, so check for newlib first.
4706     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4707         eval ${pfx}libc_type=newlib
4708         add_${pfx}cppflags -U__STRICT_ANSI__
4709     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4710     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4711         eval ${pfx}libc_type=mingw64
4712         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4713             add_compat msvcrt/snprintf.o
4714             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4715         fi
4716         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4717         eval test \$${pfx_no_}cc_type = "gcc" &&
4718             add_${pfx}cppflags -D__printf__=__gnu_printf__
4719     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4720          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4721         eval ${pfx}libc_type=mingw32
4722         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4723             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4724             die "ERROR: MinGW32 runtime version must be >= 3.15."
4725         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4726         eval test \$${pfx_no_}cc_type = "gcc" &&
4727             add_${pfx}cppflags -D__printf__=__gnu_printf__
4728     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4729         eval ${pfx}libc_type=msvcrt
4730         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4731             if [ "$pfx" = host_ ]; then
4732                 add_host_cppflags -Dsnprintf=_snprintf
4733             else
4734                 add_compat strtod.o strtod=avpriv_strtod
4735                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4736                                              _snprintf=avpriv_snprintf  \
4737                                              vsnprintf=avpriv_vsnprintf
4738             fi
4739         fi
4740         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4741         # 0x601 by default unless something else is set by the user.
4742         # This can easily lead to us detecting functions only present
4743         # in such new versions and producing binaries requiring windows 7.0.
4744         # Therefore explicitly set the default to XP unless the user has
4745         # set something else on the command line.
4746         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4747         # family. For these cases, configure is free to use any functions
4748         # found in the SDK headers by default. (Alternatively, we could force
4749         # _WIN32_WINNT to 0x0602 in that case.)
4750         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4751             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4752 #ifdef WINAPI_FAMILY
4753 #include <winapifamily.h>
4754 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4755 #error not desktop
4756 #endif
4757 #endif
4758 EOF
4759     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4760         eval ${pfx}libc_type=klibc
4761     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4762         eval ${pfx}libc_type=bionic
4763     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4764         eval ${pfx}libc_type=solaris
4765         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4766     fi
4767     check_${pfx}cc <<EOF
4768 #include <time.h>
4769 void *v = localtime_r;
4770 EOF
4771 test "$?" != 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
4772 #include <time.h>
4773 void *v = localtime_r;
4774 EOF
4775
4776 }
4777
4778 probe_libc
4779 test -n "$libc_type" && enable libc_$libc_type
4780 probe_libc host_
4781 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4782
4783 case $libc_type in
4784     bionic)
4785         add_compat strtod.o strtod=avpriv_strtod
4786         ;;
4787 esac
4788
4789 # hacks for compiler/libc/os combinations
4790
4791 if enabled_all tms470 libc_glibc; then
4792     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4793     add_cppflags -D__USER_LABEL_PREFIX__=
4794     add_cppflags -D__builtin_memset=memset
4795     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4796     add_cflags   -pds=48    # incompatible redefinition of macro
4797 fi
4798
4799 if enabled_all ccc libc_glibc; then
4800     add_ldflags -Wl,-z,now  # calls to libots crash without this
4801 fi
4802
4803 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4804     add_cppflags '-I\$(SRC_PATH)/compat/float'
4805
4806 esc(){
4807     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4808 }
4809
4810 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4811
4812 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4813
4814 set_default libdir
4815 : ${shlibdir_default:="$libdir"}
4816 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4817
4818 set_default $PATHS_LIST
4819 set_default nm
4820
4821 # we need to build at least one lib type
4822 if ! enabled_any static shared; then
4823     cat <<EOF
4824 At least one library type must be built.
4825 Specify --enable-static to build the static libraries or --enable-shared to
4826 build the shared libraries as well. To only build the shared libraries specify
4827 --disable-static in addition to --enable-shared.
4828 EOF
4829     exit 1;
4830 fi
4831
4832 die_license_disabled() {
4833     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4834 }
4835
4836 die_license_disabled_gpl() {
4837     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4838 }
4839
4840 die_license_disabled gpl frei0r
4841 die_license_disabled gpl libcdio
4842 die_license_disabled gpl librubberband
4843 die_license_disabled gpl libsmbclient
4844 die_license_disabled gpl libutvideo
4845 die_license_disabled gpl libvidstab
4846 die_license_disabled gpl libx264
4847 die_license_disabled gpl libx265
4848 die_license_disabled gpl libxavs
4849 die_license_disabled gpl libxvid
4850 die_license_disabled gpl libzvbi
4851 die_license_disabled gpl x11grab
4852
4853 die_license_disabled nonfree libaacplus
4854 die_license_disabled nonfree libfaac
4855 die_license_disabled nonfree nvenc
4856 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4857 enabled gpl && die_license_disabled_gpl nonfree openssl
4858
4859 die_license_disabled version3 gmp
4860 die_license_disabled version3 libopencore_amrnb
4861 die_license_disabled version3 libopencore_amrwb
4862 die_license_disabled version3 libsmbclient
4863 die_license_disabled version3 libvo_aacenc
4864 die_license_disabled version3 libvo_amrwbenc
4865
4866 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4867
4868 disabled optimizations || check_cflags -fomit-frame-pointer
4869
4870 enable_weak_pic() {
4871     disabled pic && return
4872     enable pic
4873     add_cppflags -DPIC
4874     case "$target_os" in
4875     mingw*|cygwin*)
4876         ;;
4877     *)
4878         add_cflags -fPIC
4879         ;;
4880     esac
4881     add_asflags  -fPIC
4882 }
4883
4884 enabled pic && enable_weak_pic
4885
4886 check_cc <<EOF || die "Symbol mangling check failed."
4887 int ff_extern;
4888 EOF
4889 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4890 extern_prefix=${sym%%ff_extern*}
4891
4892 check_cc <<EOF && enable_weak inline_asm
4893 void foo(void) { __asm__ volatile ("" ::); }
4894 EOF
4895
4896 _restrict=
4897 for restrict_keyword in restrict __restrict__ __restrict; do
4898     check_cc <<EOF && _restrict=$restrict_keyword && break
4899 void foo(char * $restrict_keyword p);
4900 EOF
4901 done
4902
4903 check_cc <<EOF && enable pragma_deprecated
4904 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4905 EOF
4906
4907 check_cc <<EOF && enable attribute_packed
4908 struct { int x; } __attribute__((packed)) x;
4909 EOF
4910
4911 check_cc <<EOF && enable attribute_may_alias
4912 union { int x; } __attribute__((may_alias)) x;
4913 EOF
4914
4915 check_cc <<EOF || die "endian test failed"
4916 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4917 EOF
4918 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4919
4920 if ! enabled ppc64 || enabled bigendian; then
4921     disable vsx
4922 fi
4923
4924 check_gas() {
4925     log "check_gas using '$as' as AS"
4926     # :vararg is used on aarch64, arm and ppc altivec
4927     check_as <<EOF || return 1
4928 .macro m n, y:vararg=0
4929 \n: .int \y
4930 .endm
4931 m x
4932 EOF
4933     # .altmacro is only used in arm asm
4934     ! enabled arm || check_as <<EOF || return 1
4935 .altmacro
4936 EOF
4937     enable gnu_as
4938     return 0
4939 }
4940
4941 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4942     nogas=:
4943     enabled_any arm aarch64 && nogas=die
4944     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4945     as_noop=-v
4946
4947     case $as_type in
4948         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4949         gcc)  gaspp_as_type=gas ;;
4950         *)    gaspp_as_type=$as_type ;;
4951     esac
4952
4953     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4954
4955     test "${as#*gas-preprocessor.pl}" != "$as" ||
4956     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4957         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4958
4959     if ! check_gas ; then
4960         as=${gas:=$as}
4961         check_gas || \
4962             $nogas "GNU assembler not found, install/update gas-preprocessor"
4963     fi
4964
4965     check_as <<EOF && enable as_func
4966 .func test
4967 .endfunc
4968 EOF
4969 fi
4970
4971 check_inline_asm inline_asm_labels '"1:\n"'
4972
4973 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4974
4975 if enabled aarch64; then
4976     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4977     # internal assembler in clang 3.3 does not support this instruction
4978     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4979     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4980
4981     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4982
4983 elif enabled alpha; then
4984
4985     check_cflags -mieee
4986
4987 elif enabled arm; then
4988
4989     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4990
4991     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4992 float func(float a, float b){ return a+b; }
4993 EOF
4994
4995     enabled thumb && check_cflags -mthumb || check_cflags -marm
4996
4997     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4998         enable vfp_args
4999     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5000         enable vfp_args
5001     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5002         case "${cross_prefix:-$cc}" in
5003             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5004             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5005 __asm__ (".eabi_attribute 28, 1");
5006 int main(void) { return 0; }
5007 EOF
5008         esac
5009         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5010     fi
5011
5012     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5013     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5014     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5015     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5016     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5017     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5018     enabled setend  && check_insn setend  'setend be'
5019
5020     [ $target_os = linux ] || [ $target_os = android ] ||
5021         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5022             $ARCH_EXT_LIST_ARM
5023
5024     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5025
5026     check_as <<EOF && enable as_dn_directive
5027 ra .dn d0.i16
5028 .unreq ra
5029 EOF
5030
5031     # llvm's integrated assembler supports .object_arch from llvm 3.5
5032     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5033 .object_arch armv4
5034 EOF
5035
5036     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5037
5038 elif enabled mips; then
5039
5040     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5041     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5042     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5043
5044     # Enable minimum ISA based on selected options
5045     if enabled mips64 && (enabled mipsdsp || enabled mipsdspr2); then
5046         add_cflags "-mips64r2"
5047         add_asflags "-mips64r2"
5048     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
5049         add_cflags "-mips64"
5050         add_asflags "-mips64"
5051     elif enabled mipsdsp || enabled mipsdspr2; then
5052         add_cflags "-mips32r2 -mfp32"
5053         add_asflags "-mips32r2 -mfp32"
5054     fi
5055
5056     enabled mipsdsp && add_cflags "-mdsp" && add_asflags "-mdsp" &&
5057      check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"'
5058     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
5059      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
5060     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
5061      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
5062     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
5063      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
5064
5065     enabled msa && add_asflags "-mmsa"
5066
5067 elif enabled parisc; then
5068
5069     if enabled gcc; then
5070         case $($cc -dumpversion) in
5071             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5072         esac
5073     fi
5074
5075 elif enabled ppc; then
5076
5077     enable local_aligned_8 local_aligned_16 local_aligned_32
5078
5079     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5080     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5081     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5082     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5083
5084     # AltiVec flags: The FSF version of GCC differs from the Apple version
5085     if enabled altivec; then
5086         check_cflags -maltivec -mabi=altivec &&
5087         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5088         check_cflags -faltivec
5089
5090         # check if our compiler supports Motorola AltiVec C API
5091         check_cc <<EOF || disable altivec
5092 $inc_altivec_h
5093 int main(void) {
5094     vector signed int v1 = (vector signed int) { 0 };
5095     vector signed int v2 = (vector signed int) { 1 };
5096     v1 = vec_add(v1, v2);
5097     return 0;
5098 }
5099 EOF
5100
5101         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5102     fi
5103
5104     if enabled vsx; then
5105         check_cflags -mvsx &&
5106         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5107     fi
5108
5109     if enabled power8; then
5110         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5111     fi
5112
5113 elif enabled x86; then
5114
5115     check_builtin rdtsc    intrin.h   "__rdtsc()"
5116     check_builtin mm_empty mmintrin.h "_mm_empty()"
5117
5118     enable local_aligned_8 local_aligned_16 local_aligned_32
5119
5120     # check whether EBP is available on x86
5121     # As 'i' is stored on the stack, this program will crash
5122     # if the base pointer is used to access it because the
5123     # base pointer is cleared in the inline assembly code.
5124     check_exec_crash <<EOF && enable ebp_available
5125 volatile int i=0;
5126 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5127 return i;
5128 EOF
5129
5130     # check whether EBX is available on x86
5131     check_inline_asm ebx_available '""::"b"(0)' &&
5132         check_inline_asm ebx_available '"":::"%ebx"'
5133
5134     # check whether xmm clobbers are supported
5135     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5136
5137     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5138         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5139
5140     # check whether binutils is new enough to compile SSSE3/MMXEXT
5141     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5142     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5143
5144     if ! disabled_any asm mmx yasm; then
5145         if check_cmd $yasmexe --version; then
5146             enabled x86_64 && yasm_extra="-m amd64"
5147             yasm_debug="-g dwarf2"
5148         elif check_cmd nasm -v; then
5149             yasmexe=nasm
5150             yasm_debug="-g -F dwarf"
5151             if enabled x86_64; then
5152                 case "$objformat" in
5153                     elf)   objformat=elf64 ;;
5154                     win32) objformat=win64 ;;
5155                 esac
5156             fi
5157         fi
5158
5159         YASMFLAGS="-f $objformat $yasm_extra"
5160         enabled pic               && append YASMFLAGS "-DPIC"
5161         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5162         case "$objformat" in
5163             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5164         esac
5165
5166         check_yasm "movbe ecx, [5]" && enable yasm ||
5167             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5168         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5169         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5170         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5171         check_yasm "CPU amdnop" || disable cpunop
5172     fi
5173
5174     case "$cpu" in
5175         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5176             disable fast_clz
5177         ;;
5178     esac
5179
5180 fi
5181
5182 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5183
5184 check_ldflags -Wl,--as-needed
5185 check_ldflags -Wl,-z,noexecstack
5186
5187 if check_func dlopen; then
5188     ldl=
5189 elif check_func dlopen -ldl; then
5190     ldl=-ldl
5191 fi
5192
5193 frei0r_filter_extralibs='$ldl'
5194 frei0r_src_filter_extralibs='$ldl'
5195 ladspa_filter_extralibs='$ldl'
5196 nvenc_encoder_extralibs='$ldl'
5197
5198 if ! disabled network; then
5199     check_func getaddrinfo $network_extralibs
5200     check_func inet_aton $network_extralibs
5201
5202     check_type netdb.h "struct addrinfo"
5203     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5204     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5205     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5206     check_type poll.h "struct pollfd"
5207     check_type netinet/sctp.h "struct sctp_event_subscribe"
5208     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5209     check_type netinet/in.h "struct sockaddr_in6"
5210     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5211     check_type "sys/types.h sys/socket.h" socklen_t
5212
5213     # Prefer arpa/inet.h over winsock2
5214     if check_header arpa/inet.h ; then
5215         check_func closesocket
5216     elif check_header winsock2.h ; then
5217         check_func_headers winsock2.h closesocket -lws2 &&
5218             network_extralibs="-lws2" ||
5219         { check_func_headers winsock2.h closesocket -lws2_32 &&
5220             network_extralibs="-lws2_32"; } || disable winsock2_h network
5221         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5222
5223         check_type ws2tcpip.h socklen_t
5224         check_type ws2tcpip.h "struct addrinfo"
5225         check_type ws2tcpip.h "struct group_source_req"
5226         check_type ws2tcpip.h "struct ip_mreq_source"
5227         check_type ws2tcpip.h "struct ipv6_mreq"
5228         check_type winsock2.h "struct pollfd"
5229         check_struct winsock2.h "struct sockaddr" sa_len
5230         check_type ws2tcpip.h "struct sockaddr_in6"
5231         check_type ws2tcpip.h "struct sockaddr_storage"
5232     else
5233         disable network
5234     fi
5235 fi
5236
5237 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5238 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5239 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5240 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5241 check_builtin sarestart signal.h "SA_RESTART"
5242 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5243 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5244 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5245
5246 case "$custom_allocator" in
5247     jemalloc)
5248         # jemalloc by default does not use a prefix
5249         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5250     ;;
5251     tcmalloc)
5252         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5253         malloc_prefix=tc_
5254     ;;
5255 esac
5256
5257 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5258 check_func  ${malloc_prefix}memalign            && enable memalign
5259 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5260
5261 check_func  access
5262 check_func  arc4random
5263 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5264 check_func  fcntl
5265 check_func  fork
5266 check_func  gethrtime
5267 check_func  getopt
5268 check_func  getrusage
5269 check_func  gettimeofday
5270 check_func  isatty
5271 check_func  mach_absolute_time
5272 check_func  mkstemp
5273 check_func  mmap
5274 check_func  mprotect
5275 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5276 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5277 check_func  sched_getaffinity
5278 check_func  setrlimit
5279 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5280 check_func  strerror_r
5281 check_func  sysconf
5282 check_func  sysctl
5283 check_func  usleep
5284
5285 check_func_headers conio.h kbhit
5286 check_func_headers io.h setmode
5287 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5288 check_func_headers stdlib.h getenv
5289 check_func_headers sys/stat.h lstat
5290
5291 check_func_headers windows.h CoTaskMemFree -lole32
5292 check_func_headers windows.h GetProcessAffinityMask
5293 check_func_headers windows.h GetProcessTimes
5294 check_func_headers windows.h GetSystemTimeAsFileTime
5295 check_func_headers windows.h MapViewOfFile
5296 check_func_headers windows.h PeekNamedPipe
5297 check_func_headers windows.h SetConsoleTextAttribute
5298 check_func_headers windows.h SetConsoleCtrlHandler
5299 check_func_headers windows.h Sleep
5300 check_func_headers windows.h VirtualAlloc
5301 check_struct windows.h "CONDITION_VARIABLE" Ptr
5302 check_func_headers glob.h glob
5303 enabled xlib &&
5304     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5305
5306 check_header direct.h
5307 check_header dirent.h
5308 check_header dlfcn.h
5309 check_header d3d11.h
5310 check_header dxva.h
5311 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5312 check_header io.h
5313 check_header libcrystalhd/libcrystalhd_if.h
5314 check_header mach/mach_time.h
5315 check_header malloc.h
5316 check_header net/udplite.h
5317 check_header poll.h
5318 check_header sys/mman.h
5319 check_header sys/param.h
5320 check_header sys/resource.h
5321 check_header sys/select.h
5322 check_header sys/time.h
5323 check_header sys/un.h
5324 check_header termios.h
5325 check_header unistd.h
5326 check_header valgrind/valgrind.h
5327 check_header vdpau/vdpau.h
5328 check_header vdpau/vdpau_x11.h
5329 check_header VideoDecodeAcceleration/VDADecoder.h
5330 check_header VideoToolbox/VideoToolbox.h
5331 check_header windows.h
5332 check_header X11/extensions/XvMClib.h
5333 check_header asm/types.h
5334
5335 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5336 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5337 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5338 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5339
5340 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5341
5342 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5343 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5344 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5345 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5346 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5347
5348 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5349 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5350
5351 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5352
5353 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5354
5355 if ! disabled w32threads && ! enabled pthreads; then
5356     check_func_headers "windows.h process.h" _beginthreadex &&
5357         enable w32threads || disable w32threads
5358     if ! enabled w32threads && enabled winrt; then
5359         check_func_headers "windows.h" CreateThread &&
5360             enable w32threads || disable w32threads
5361     fi
5362 fi
5363
5364 # check for some common methods of building with pthread support
5365 # do this before the optional library checks as some of them require pthreads
5366 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5367     enable pthreads
5368     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5369         add_cflags -pthread
5370         add_extralibs -pthread
5371     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5372         add_cflags -pthreads
5373         add_extralibs -pthreads
5374     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5375         add_cflags -ldl -pthread
5376         add_extralibs -ldl -pthread
5377     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5378         add_extralibs -lpthreadGC2
5379     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5380         :
5381     elif ! check_func pthread_join && ! check_func pthread_create; then
5382         disable pthreads
5383     fi
5384     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5385 fi
5386
5387
5388 if enabled pthreads; then
5389   check_func pthread_cancel
5390 fi
5391
5392 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5393 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5394 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5395
5396 check_lib math.h sin -lm && LIBM="-lm"
5397 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5398
5399 atan2f_args=2
5400 copysign_args=2
5401 hypot_args=2
5402 ldexpf_args=2
5403 powf_args=2
5404
5405 for func in $MATH_FUNCS; do
5406     eval check_mathfunc $func \${${func}_args:-1}
5407 done
5408
5409 for func in $COMPLEX_FUNCS; do
5410     eval check_complexfunc $func \${${func}_args:-1}
5411 done
5412
5413 # these are off by default, so fail if requested and not available
5414 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5415 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5416                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5417 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5418                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5419                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5420 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5421 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5422 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5423 enabled gcrypt            && require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5424 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5425 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5426 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5427 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5428 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5429 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5430 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5431 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5432 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5433                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5434                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5435 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5436 enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create
5437 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5438 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5439                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5440                                  warn "using libfdk without pkg-config"; } }
5441 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"
5442 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5443 enabled fontconfig        && enable libfontconfig
5444 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5445 enabled libfreetype       && require_libfreetype
5446 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5447 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5448 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5449                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5450                                done || die "ERROR: libgsm not found"; }
5451 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5452 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
5453 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5454 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5455 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5456 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5457 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5458 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5459 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5460 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5461 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5462                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5463                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5464                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5465                                die "ERROR: libopenjpeg not found"; }
5466 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5467 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5468 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5469 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5470 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5471 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5472 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5473 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5474                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5475 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5476 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5477 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5478 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5479 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5480     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5481     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5482 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5483 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5484 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5485                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5486                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5487 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5488 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5489 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5490 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5491 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5492 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5493
5494 enabled libvpx            && {
5495     enabled libvpx_vp8_decoder && {
5496         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5497             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5498                 die "ERROR: libvpx decoder version must be >=0.9.1";
5499     }
5500     enabled libvpx_vp8_encoder && {
5501         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5502             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5503                 die "ERROR: libvpx encoder version must be >=0.9.7";
5504     }
5505     enabled libvpx_vp9_decoder && {
5506         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5507             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5508                 disable libvpx_vp9_decoder;
5509     }
5510     enabled libvpx_vp9_encoder && {
5511         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5512             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5513                 disable libvpx_vp9_encoder;
5514     }
5515     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5516         die "libvpx enabled but no supported decoders found"
5517     fi
5518 }
5519
5520 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5521 enabled libwebp           && {
5522     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5523     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5524 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5525                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5526                                  warn "using libx264 without pkg-config"; } } &&
5527                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5528                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5529                              { check_cpp_condition x264.h "X264_MPEG2" &&
5530                                enable libx262; }
5531 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5532                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5533                                die "ERROR: libx265 version must be >= 57."; }
5534 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5535 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5536 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5537 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5538 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5539 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5540                                 { ! enabled cross_compile && {
5541                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5542                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5543                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5544                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5545                                die "ERROR: mmal not found"; }
5546 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5547 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5548                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5549                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5550                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5551 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5552                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5553                                die "ERROR: openal not found"; } &&
5554                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5555                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5556 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5557                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5558                                die "ERROR: opencl not found"; } &&
5559                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5560                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5561                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5562 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5563                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5564                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5565                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5566                                die "ERROR: opengl not found."
5567                              }
5568 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5569                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5570                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5571                                die "ERROR: openssl not found"; }
5572 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5573
5574 # libdc1394 check
5575 if enabled libdc1394; then
5576     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5577         enable libdc1394_2; } ||
5578     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5579         enable libdc1394_1; } ||
5580     die "ERROR: No version of libdc1394 found "
5581 fi
5582 if ! disabled sdl; then
5583     SDL_CONFIG="${cross_prefix}sdl-config"
5584     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5585         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5586         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5587         enable sdl
5588     else
5589         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5590             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5591             sdl_libs=$("${SDL_CONFIG}" --libs)
5592             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5593             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5594             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5595             enable sdl
5596         elif enabled sdl ; then
5597             die "ERROR: SDL not found"
5598         else
5599             disable sdl
5600         fi
5601     fi
5602     if test $target_os = "mingw32"; then
5603         sdl_libs="$sdl_libs -mconsole"
5604     fi
5605 fi
5606 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5607
5608 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5609     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5610     enable securetransport; }
5611
5612 disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&
5613                        enable schannel && add_extralibs -lSecur32; }
5614
5615 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5616 enabled makeinfo \
5617     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5618     && enable makeinfo_html || disable makeinfo_html
5619 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5620 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5621 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5622 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5623
5624 check_header linux/fb.h
5625 check_header linux/videodev.h
5626 check_header linux/videodev2.h
5627 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5628
5629 check_header sys/videoio.h
5630 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5631
5632 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5633 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5634 # w32api 3.12 had it defined wrong
5635 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5636
5637 check_type "dshow.h" IBaseFilter
5638
5639 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5640 { check_header dev/bktr/ioctl_meteor.h &&
5641   check_header dev/bktr/ioctl_bt848.h; } ||
5642 { check_header machine/ioctl_meteor.h &&
5643   check_header machine/ioctl_bt848.h; } ||
5644 { check_header dev/video/meteor/ioctl_meteor.h &&
5645   check_header dev/video/bktr/ioctl_bt848.h; } ||
5646 check_header dev/ic/bt8xx.h
5647
5648 check_header sndio.h
5649 if check_struct sys/soundcard.h audio_buf_info bytes; then
5650     enable_safe sys/soundcard.h
5651 else
5652     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5653     #include <sys/soundcard.h>
5654     audio_buf_info abc;
5655 EOF
5656 fi
5657 check_header soundcard.h
5658
5659 enabled_any alsa_indev alsa_outdev &&
5660     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5661
5662 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5663     check_func jack_port_get_latency_range -ljack
5664
5665 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5666
5667 if enabled libcdio; then
5668     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5669     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5670     die "ERROR: No usable libcdio/cdparanoia found"
5671 fi
5672
5673 enabled xlib &&
5674     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5675
5676 if ! disabled libxcb; then
5677     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5678         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5679     } && disable x11grab && enable libxcb
5680
5681 if enabled libxcb; then
5682     disabled libxcb_shm || {
5683         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5684             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5685         } && check_header sys/shm.h && enable libxcb_shm; }
5686
5687     disabled libxcb_xfixes || {
5688         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5689             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5690         } && enable libxcb_xfixes; }
5691
5692     disabled libxcb_shape || {
5693         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5694             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5695         } && enable libxcb_shape; }
5696
5697     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5698     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5699 fi
5700 fi
5701
5702 if enabled x11grab; then
5703     enabled xlib || die "ERROR: Xlib not found"
5704     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5705     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5706 fi
5707
5708 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5709
5710 enabled dxva2api_h &&
5711     check_cc <<EOF && enable dxva2api_cobj
5712 #define _WIN32_WINNT 0x0600
5713 #define COBJMACROS
5714 #include <windows.h>
5715 #include <d3d9.h>
5716 #include <dxva2api.h>
5717 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5718 EOF
5719
5720 enabled vaapi &&
5721     check_lib va/va.h vaInitialize -lva ||
5722     disable vaapi
5723
5724 enabled vaapi && enabled xlib &&
5725     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5726     enable vaapi_x11
5727
5728 enabled vdpau &&
5729     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5730     disable vdpau
5731
5732 enabled vdpau && enabled xlib &&
5733     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5734     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5735     enable vdpau_x11
5736
5737 # Funny iconv installations are not unusual, so check it after all flags have been set
5738 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5739
5740 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5741
5742 # add some useful compiler flags if supported
5743 check_cflags -Wdeclaration-after-statement
5744 check_cflags -Wall
5745 check_cflags -Wdisabled-optimization
5746 check_cflags -Wpointer-arith
5747 check_cflags -Wredundant-decls
5748 check_cflags -Wwrite-strings
5749 check_cflags -Wtype-limits
5750 check_cflags -Wundef
5751 check_cflags -Wmissing-prototypes
5752 check_cflags -Wno-pointer-to-int-cast
5753 check_cflags -Wstrict-prototypes
5754 check_cflags -Wempty-body
5755 enabled extra_warnings && check_cflags -Winline
5756 enabled extra_warnings && check_cflags -Wcast-qual
5757
5758 check_disable_warning(){
5759     warning_flag=-W${1#-Wno-}
5760     test_cflags $warning_flag && add_cflags $1
5761 }
5762
5763 check_disable_warning -Wno-parentheses
5764 check_disable_warning -Wno-switch
5765 check_disable_warning -Wno-format-zero-length
5766 check_disable_warning -Wno-pointer-sign
5767
5768 # add some linker flags
5769 check_ldflags -Wl,--warn-common
5770 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5771 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5772 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5773 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5774
5775 # add some strip flags
5776 # -wN '..@*' is more selective than -x, but not available everywhere.
5777 check_stripflags -wN \'..@*\' || check_stripflags -x
5778
5779 enabled neon_clobber_test &&
5780     check_ldflags -Wl,--wrap,avcodec_open2              \
5781                   -Wl,--wrap,avcodec_decode_audio4      \
5782                   -Wl,--wrap,avcodec_decode_video2      \
5783                   -Wl,--wrap,avcodec_decode_subtitle2   \
5784                   -Wl,--wrap,avcodec_encode_audio2      \
5785                   -Wl,--wrap,avcodec_encode_video2      \
5786                   -Wl,--wrap,avcodec_encode_subtitle    \
5787                   -Wl,--wrap,swr_convert                \
5788                   -Wl,--wrap,avresample_convert ||
5789     disable neon_clobber_test
5790
5791 enabled xmm_clobber_test &&
5792     check_ldflags -Wl,--wrap,avcodec_open2              \
5793                   -Wl,--wrap,avcodec_decode_audio4      \
5794                   -Wl,--wrap,avcodec_decode_video2      \
5795                   -Wl,--wrap,avcodec_decode_subtitle2   \
5796                   -Wl,--wrap,avcodec_encode_audio2      \
5797                   -Wl,--wrap,avcodec_encode_video2      \
5798                   -Wl,--wrap,avcodec_encode_subtitle    \
5799                   -Wl,--wrap,swr_convert                \
5800                   -Wl,--wrap,avresample_convert         \
5801                   -Wl,--wrap,sws_scale ||
5802     disable xmm_clobber_test
5803
5804 echo "X { local: *; };" > $TMPV
5805 if test_ldflags -Wl,--version-script,$TMPV; then
5806     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5807 elif test_ldflags -Wl,-M,$TMPV; then
5808     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5809 fi
5810
5811 check_cc <<EOF && enable symver_asm_label
5812 void ff_foo(void) __asm__ ("av_foo@VERSION");
5813 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5814 EOF
5815     check_cc <<EOF && enable symver_gnu_asm
5816 __asm__(".symver ff_foo,av_foo@VERSION");
5817 void ff_foo(void) {}
5818 EOF
5819
5820 if [ -z "$optflags" ]; then
5821     if enabled small; then
5822         optflags=$cflags_size
5823     elif enabled optimizations; then
5824         optflags=$cflags_speed
5825     else
5826         optflags=$cflags_noopt
5827     fi
5828 fi
5829
5830 check_optflags(){
5831     check_cflags "$@"
5832     enabled lto && check_ldflags "$@"
5833 }
5834
5835
5836 if enabled lto; then
5837     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5838     check_cflags  -flto
5839     check_ldflags -flto $cpuflags
5840     disable inline_asm_direct_symbol_refs
5841 fi
5842
5843 check_optflags $optflags
5844 check_optflags -fno-math-errno
5845 check_optflags -fno-signed-zeros
5846
5847 enabled ftrapv && check_cflags -ftrapv
5848
5849 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5850 int x;
5851 EOF
5852
5853
5854 if enabled icc; then
5855     # Just warnings, no remarks
5856     check_cflags -w1
5857     # -wd: Disable following warnings
5858     # 144, 167, 556: -Wno-pointer-sign
5859     # 188: enumerated type mixed with another type
5860     # 1292: attribute "foo" ignored
5861     # 1419: external declaration in primary source file
5862     # 10006: ignoring unknown option -fno-signed-zeros
5863     # 10148: ignoring unknown option -Wno-parentheses
5864     # 10156: ignoring option '-W'; no argument required
5865     # 13200: No EMMS instruction before call to function
5866     # 13203: No EMMS instruction before return from function
5867     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5868     # 11030: Warning unknown option --as-needed
5869     # 10156: ignoring option '-export'; no argument required
5870     check_ldflags -wd10156,11030
5871     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5872     enable ebp_available
5873     # The test above does not test linking
5874     enabled lto && disable symver_asm_label
5875     if enabled x86_32; then
5876         icc_version=$($cc -dumpversion)
5877         test ${icc_version%%.*} -ge 11 &&
5878             check_cflags -falign-stack=maintain-16-byte ||
5879             disable aligned_stack
5880     fi
5881 elif enabled ccc; then
5882     # disable some annoying warnings
5883     add_cflags -msg_disable bitnotint
5884     add_cflags -msg_disable mixfuncvoid
5885     add_cflags -msg_disable nonstandcast
5886     add_cflags -msg_disable unsupieee
5887 elif enabled gcc; then
5888     check_optflags -fno-tree-vectorize
5889     check_cflags -Werror=format-security
5890     check_cflags -Werror=implicit-function-declaration
5891     check_cflags -Werror=missing-prototypes
5892     check_cflags -Werror=return-type
5893     check_cflags -Werror=vla
5894     check_cflags -Wformat
5895     check_cflags -fdiagnostics-color=auto
5896     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5897 elif enabled llvm_gcc; then
5898     check_cflags -mllvm -stack-alignment=16
5899 elif enabled clang; then
5900     check_cflags -mllvm -stack-alignment=16
5901     check_cflags -Qunused-arguments
5902     check_cflags -Werror=implicit-function-declaration
5903     check_cflags -Werror=missing-prototypes
5904     check_cflags -Werror=return-type
5905 elif enabled cparser; then
5906     add_cflags -Wno-missing-variable-declarations
5907     add_cflags -Wno-empty-statement
5908 elif enabled armcc; then
5909     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5910     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5911     # 2523: use of inline assembly is deprecated
5912     add_cflags -W${armcc_opt},--diag_suppress=2523
5913     add_cflags -W${armcc_opt},--diag_suppress=1207
5914     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5915     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5916     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5917     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5918 elif enabled tms470; then
5919     add_cflags -pds=824 -pds=837
5920     disable inline_asm
5921 elif enabled pathscale; then
5922     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5923 elif enabled_any msvc icl; then
5924     enabled x86_32 && disable aligned_stack
5925     enabled_all x86_32 debug && add_cflags -Oy-
5926     enabled debug && add_ldflags -debug
5927     enable pragma_deprecated
5928     if enabled icl; then
5929         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5930         # (correctly) on icl 13.x.
5931         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5932             add_cflags -Qansi-alias
5933         # Some inline asm is not compilable in debug
5934         if enabled debug; then
5935             disable ebp_available
5936             disable ebx_available
5937         fi
5938     fi
5939     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5940     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5941     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5942     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5943     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5944     # MSVC 2013 and newer can handle it fine.
5945     # If this declspec fails, force including stdlib.h before the restrict redefinition
5946     # happens in config.h.
5947     if [ $_restrict != restrict ]; then
5948         check_cc <<EOF || add_cflags -FIstdlib.h
5949 __declspec($_restrict) void* foo(int);
5950 EOF
5951     fi
5952     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5953 fi
5954
5955 for pfx in "" host_; do
5956     varname=${pfx%_}cc_type
5957     eval "type=\$$varname"
5958     if [ $type = "msvc" ]; then
5959         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5960 static inline int foo(int a) { return a; }
5961 EOF
5962     fi
5963 done
5964
5965 case $as_type in
5966     clang)
5967         add_asflags -Qunused-arguments
5968     ;;
5969 esac
5970
5971 case $ld_type in
5972     clang)
5973         check_ldflags -Qunused-arguments
5974     ;;
5975 esac
5976
5977 case $target_os in
5978     osf1)
5979         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5980     ;;
5981     plan9)
5982         add_cppflags -Dmain=plan9_main
5983     ;;
5984 esac
5985
5986 enable frame_thread_encoder
5987
5988 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5989
5990 check_deps $CONFIG_LIST       \
5991            $CONFIG_EXTRA      \
5992            $HAVE_LIST         \
5993            $ALL_COMPONENTS    \
5994
5995 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"
5996
5997
5998 if test $target_os = "haiku"; then
5999     disable memalign
6000     disable posix_memalign
6001 fi
6002
6003 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6004     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6005     enable dxva2_lib
6006
6007 ! enabled_any memalign posix_memalign aligned_malloc &&
6008     enabled simd_align_16 && enable memalign_hack
6009
6010 # add_dep lib dep
6011 # -> enable ${lib}_deps_${dep}
6012 # -> add $dep to ${lib}_deps only once
6013 add_dep() {
6014     lib=$1
6015     dep=$2
6016     enabled "${lib}_deps_${dep}" && return 0
6017     enable  "${lib}_deps_${dep}"
6018     prepend "${lib}_deps" $dep
6019 }
6020
6021 # merge deps lib components
6022 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6023 merge_deps() {
6024     lib=$1
6025     shift
6026     for comp in $*; do
6027         enabled $comp || continue
6028         eval "dep=\"\$${comp}_deps\""
6029         for d in $dep; do
6030             add_dep $lib $d
6031         done
6032     done
6033 }
6034
6035 merge_deps libavfilter $FILTER_LIST
6036
6037 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6038
6039 for thread in $THREADS_LIST; do
6040     if enabled $thread; then
6041         test -n "$thread_type" &&
6042             die "ERROR: Only one thread type must be selected." ||
6043             thread_type="$thread"
6044     fi
6045 done
6046
6047 enabled zlib && add_cppflags -DZLIB_CONST
6048
6049 # conditional library dependencies, in linking order
6050 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6051 enabled aresample_filter    && prepend avfilter_deps "swresample"
6052 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6053 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6054 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6055 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6056 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6057 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6058 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6059 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6060 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6061 enabled pan_filter          && prepend avfilter_deps "swresample"
6062 enabled pp_filter           && prepend avfilter_deps "postproc"
6063 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6064 enabled resample_filter && prepend avfilter_deps "avresample"
6065 enabled sab_filter          && prepend avfilter_deps "swscale"
6066 enabled scale_filter    && prepend avfilter_deps "swscale"
6067 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6068 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6069 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6070 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6071 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6072 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6073 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6074
6075 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6076
6077 enabled opus_decoder    && prepend avcodec_deps "swresample"
6078
6079 expand_deps(){
6080     lib_deps=${1}_deps
6081     eval "deps=\$$lib_deps"
6082     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6083     unique $lib_deps
6084 }
6085
6086 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6087 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6088
6089 map 'expand_deps $v' $LIBRARY_LIST
6090
6091 echo "install prefix            $prefix"
6092 echo "source path               $source_path"
6093 echo "C compiler                $cc"
6094 echo "C library                 $libc_type"
6095 if test "$host_cc" != "$cc"; then
6096     echo "host C compiler           $host_cc"
6097     echo "host C library            $host_libc_type"
6098 fi
6099 echo "ARCH                      $arch ($cpu)"
6100 if test "$build_suffix" != ""; then
6101     echo "build suffix              $build_suffix"
6102 fi
6103 if test "$progs_suffix" != ""; then
6104     echo "progs suffix              $progs_suffix"
6105 fi
6106 if test "$extra_version" != ""; then
6107     echo "version string suffix     $extra_version"
6108 fi
6109 echo "big-endian                ${bigendian-no}"
6110 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6111 if enabled x86; then
6112     echo "${yasmexe}                      ${yasm-no}"
6113     echo "MMX enabled               ${mmx-no}"
6114     echo "MMXEXT enabled            ${mmxext-no}"
6115     echo "3DNow! enabled            ${amd3dnow-no}"
6116     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6117     echo "SSE enabled               ${sse-no}"
6118     echo "SSSE3 enabled             ${ssse3-no}"
6119     echo "AESNI enabled             ${aesni-no}"
6120     echo "AVX enabled               ${avx-no}"
6121     echo "XOP enabled               ${xop-no}"
6122     echo "FMA3 enabled              ${fma3-no}"
6123     echo "FMA4 enabled              ${fma4-no}"
6124     echo "i686 features enabled     ${i686-no}"
6125     echo "CMOV is fast              ${fast_cmov-no}"
6126     echo "EBX available             ${ebx_available-no}"
6127     echo "EBP available             ${ebp_available-no}"
6128 fi
6129 if enabled aarch64; then
6130     echo "NEON enabled              ${neon-no}"
6131     echo "VFP enabled               ${vfp-no}"
6132 fi
6133 if enabled arm; then
6134     echo "ARMv5TE enabled           ${armv5te-no}"
6135     echo "ARMv6 enabled             ${armv6-no}"
6136     echo "ARMv6T2 enabled           ${armv6t2-no}"
6137     echo "VFP enabled               ${vfp-no}"
6138     echo "NEON enabled              ${neon-no}"
6139     echo "THUMB enabled             ${thumb-no}"
6140 fi
6141 if enabled mips; then
6142     echo "MIPS FPU enabled          ${mipsfpu-no}"
6143     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6144     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6145     echo "MIPS MSA enabled          ${msa-no}"
6146     echo "LOONGSON MMI enabled      ${mmi-no}"
6147 fi
6148 if enabled ppc; then
6149     echo "AltiVec enabled           ${altivec-no}"
6150     echo "VSX enabled               ${vsx-no}"
6151     echo "POWER8 enabled            ${power8-no}"
6152     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6153     echo "dcbzl available           ${dcbzl-no}"
6154 fi
6155 echo "debug symbols             ${debug-no}"
6156 echo "strip symbols             ${stripping-no}"
6157 echo "optimize for size         ${small-no}"
6158 echo "optimizations             ${optimizations-no}"
6159 echo "static                    ${static-no}"
6160 echo "shared                    ${shared-no}"
6161 echo "postprocessing support    ${postproc-no}"
6162 echo "new filter support        ${avfilter-no}"
6163 echo "network support           ${network-no}"
6164 echo "threading support         ${thread_type-no}"
6165 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6166 echo "SDL support               ${sdl-no}"
6167 echo "opencl enabled            ${opencl-no}"
6168 echo "texi2html enabled         ${texi2html-no}"
6169 echo "perl enabled              ${perl-no}"
6170 echo "pod2man enabled           ${pod2man-no}"
6171 echo "makeinfo enabled          ${makeinfo-no}"
6172 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6173 test -n "$random_seed" &&
6174     echo "random seed               ${random_seed}"
6175 echo
6176
6177 echo "Enabled programs:"
6178 print_enabled '' $PROGRAM_LIST | print_in_columns
6179 echo
6180
6181 echo "External libraries:"
6182 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6183 echo
6184
6185 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6186     echo "Enabled ${type}s:"
6187     eval list=\$$(toupper $type)_LIST
6188     print_enabled '_*' $list | print_in_columns
6189     echo
6190 done
6191
6192 license="LGPL version 2.1 or later"
6193 if enabled nonfree; then
6194     license="nonfree and unredistributable"
6195 elif enabled gplv3; then
6196     license="GPL version 3 or later"
6197 elif enabled lgplv3; then
6198     license="LGPL version 3 or later"
6199 elif enabled gpl; then
6200     license="GPL version 2 or later"
6201 fi
6202
6203 echo "License: $license"
6204
6205 echo "Creating config.mak, config.h, and doc/config.texi..."
6206
6207 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6208
6209 enabled stripping || strip="echo skipping strip"
6210
6211 config_files="$TMPH config.mak doc/config.texi"
6212
6213 cat > config.mak <<EOF
6214 # Automatically generated by configure - do not modify!
6215 ifndef FFMPEG_CONFIG_MAK
6216 FFMPEG_CONFIG_MAK=1
6217 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6218 prefix=$prefix
6219 LIBDIR=\$(DESTDIR)$libdir
6220 SHLIBDIR=\$(DESTDIR)$shlibdir
6221 INCDIR=\$(DESTDIR)$incdir
6222 BINDIR=\$(DESTDIR)$bindir
6223 DATADIR=\$(DESTDIR)$datadir
6224 DOCDIR=\$(DESTDIR)$docdir
6225 MANDIR=\$(DESTDIR)$mandir
6226 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6227 SRC_PATH=$source_path
6228 ifndef MAIN_MAKEFILE
6229 SRC_PATH:=\$(SRC_PATH:.%=..%)
6230 endif
6231 CC_IDENT=$cc_ident
6232 ARCH=$arch
6233 INTRINSICS=$intrinsics
6234 CC=$cc
6235 CXX=$cxx
6236 AS=$as
6237 OBJCC=$objcc
6238 LD=$ld
6239 DEPCC=$dep_cc
6240 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6241 DEPAS=$as
6242 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6243 YASM=$yasmexe
6244 DEPYASM=$yasmexe
6245 AR=$ar
6246 ARFLAGS=$arflags
6247 AR_O=$ar_o
6248 RANLIB=$ranlib
6249 STRIP=$strip
6250 CP=cp -p
6251 LN_S=$ln_s
6252 CPPFLAGS=$CPPFLAGS
6253 CFLAGS=$CFLAGS
6254 CXXFLAGS=$CXXFLAGS
6255 OBJCFLAGS=$OBJCFLAGS
6256 ASFLAGS=$ASFLAGS
6257 AS_C=$AS_C
6258 AS_O=$AS_O
6259 OBJCC_C=$OBJCC_C
6260 OBJCC_E=$OBJCC_E
6261 OBJCC_O=$OBJCC_O
6262 CC_C=$CC_C
6263 CC_E=$CC_E
6264 CC_O=$CC_O
6265 CXX_C=$CXX_C
6266 CXX_O=$CXX_O
6267 LD_O=$LD_O
6268 LD_LIB=$LD_LIB
6269 LD_PATH=$LD_PATH
6270 DLLTOOL=$dlltool
6271 WINDRES=$windres
6272 DEPWINDRES=$dep_cc
6273 DOXYGEN=$doxygen
6274 LDFLAGS=$LDFLAGS
6275 LDEXEFLAGS=$LDEXEFLAGS
6276 LDLIBFLAGS=$LDLIBFLAGS
6277 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6278 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6279 YASMFLAGS=$YASMFLAGS
6280 BUILDSUF=$build_suffix
6281 PROGSSUF=$progs_suffix
6282 FULLNAME=$FULLNAME
6283 LIBPREF=$LIBPREF
6284 LIBSUF=$LIBSUF
6285 LIBNAME=$LIBNAME
6286 SLIBPREF=$SLIBPREF
6287 SLIBSUF=$SLIBSUF
6288 EXESUF=$EXESUF
6289 EXTRA_VERSION=$extra_version
6290 CCDEP=$CCDEP
6291 CXXDEP=$CXXDEP
6292 CCDEP_FLAGS=$CCDEP_FLAGS
6293 ASDEP=$ASDEP
6294 ASDEP_FLAGS=$ASDEP_FLAGS
6295 CC_DEPFLAGS=$CC_DEPFLAGS
6296 AS_DEPFLAGS=$AS_DEPFLAGS
6297 HOSTCC=$host_cc
6298 HOSTLD=$host_ld
6299 HOSTCFLAGS=$host_cflags
6300 HOSTCPPFLAGS=$host_cppflags
6301 HOSTEXESUF=$HOSTEXESUF
6302 HOSTLDFLAGS=$host_ldflags
6303 HOSTLIBS=$host_libs
6304 DEPHOSTCC=$host_cc
6305 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6306 HOSTCCDEP=$HOSTCCDEP
6307 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6308 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6309 HOSTCC_C=$HOSTCC_C
6310 HOSTCC_O=$HOSTCC_O
6311 HOSTLD_O=$HOSTLD_O
6312 TARGET_EXEC=$target_exec $target_exec_args
6313 TARGET_PATH=$target_path
6314 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6315 CFLAGS-ffplay=$sdl_cflags
6316 ZLIB=$($ldflags_filter -lz)
6317 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6318 EXTRALIBS=$extralibs
6319 COMPAT_OBJS=$compat_objs
6320 EXEOBJS=$exeobjs
6321 INSTALL=$install
6322 LIBTARGET=${LIBTARGET}
6323 SLIBNAME=${SLIBNAME}
6324 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6325 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6326 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6327 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6328 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6329 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6330 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6331 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6332 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6333 NOREDZONE_FLAGS=$noredzone_flags
6334 EOF
6335
6336 get_version(){
6337     lcname=lib${1}
6338     name=$(toupper $lcname)
6339     file=$source_path/$lcname/version.h
6340     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6341     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6342     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6343     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6344     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6345     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6346 }
6347
6348 map 'get_version $v' $LIBRARY_LIST
6349
6350 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6351
6352 print_program_libs(){
6353     eval "program_libs=\$${1}_libs"
6354     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6355 }
6356
6357 map 'print_program_libs $v' $PROGRAM_LIST
6358
6359 cat > $TMPH <<EOF
6360 /* Automatically generated by configure - do not modify! */
6361 #ifndef FFMPEG_CONFIG_H
6362 #define FFMPEG_CONFIG_H
6363 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6364 #define FFMPEG_LICENSE "$(c_escape $license)"
6365 #define CONFIG_THIS_YEAR 2016
6366 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6367 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6368 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6369 #define av_restrict $_restrict
6370 #define EXTERN_PREFIX "${extern_prefix}"
6371 #define EXTERN_ASM ${extern_prefix}
6372 #define BUILDSUF "$build_suffix"
6373 #define SLIBSUF "$SLIBSUF"
6374 #define HAVE_MMX2 HAVE_MMXEXT
6375 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6376 EOF
6377
6378 test -n "$assert_level" &&
6379     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6380
6381 test -n "$malloc_prefix" &&
6382     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6383
6384 if enabled yasm; then
6385     append config_files $TMPASM
6386     printf '' >$TMPASM
6387 fi
6388
6389 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6390
6391
6392 mkdir -p doc
6393 mkdir -p tests
6394 mkdir -p tests/api
6395 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6396
6397 print_config ARCH_   "$config_files" $ARCH_LIST
6398 print_config HAVE_   "$config_files" $HAVE_LIST
6399 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6400                                      $CONFIG_EXTRA      \
6401                                      $ALL_COMPONENTS    \
6402
6403 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6404 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6405
6406 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6407 cp_if_changed $TMPH config.h
6408 touch .config
6409
6410 enabled yasm && cp_if_changed $TMPASM config.asm
6411
6412 cat > $TMPH <<EOF
6413 /* Generated by ffconf */
6414 #ifndef AVUTIL_AVCONFIG_H
6415 #define AVUTIL_AVCONFIG_H
6416 EOF
6417
6418 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6419
6420 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6421
6422 cp_if_changed $TMPH libavutil/avconfig.h
6423
6424 if test -n "$WARNINGS"; then
6425     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6426     enabled fatal_warnings && exit 1
6427 fi
6428
6429 # build pkg-config files
6430
6431 lib_version(){
6432     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6433 }
6434
6435 pkgconfig_generate(){
6436     name=$1
6437     shortname=${name#lib}${build_suffix}
6438     comment=$2
6439     version=$3
6440     libs=$4
6441     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6442     requires=${requires%, }
6443     enabled ${name#lib} || return 0
6444     mkdir -p $name
6445     cat <<EOF > $name/$name${build_suffix}.pc
6446 prefix=$prefix
6447 exec_prefix=\${prefix}
6448 libdir=$libdir
6449 includedir=$incdir
6450
6451 Name: $name
6452 Description: $comment
6453 Version: $version
6454 Requires: $(enabled shared || echo $requires)
6455 Requires.private: $(enabled shared && echo $requires)
6456 Conflicts:
6457 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6458 Libs.private: $(enabled shared && echo $libs)
6459 Cflags: -I\${includedir}
6460 EOF
6461
6462 mkdir -p doc/examples/pc-uninstalled
6463 includedir=${source_path}
6464 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6465     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6466 prefix=
6467 exec_prefix=
6468 libdir=\${pcfiledir}/../../../$name
6469 includedir=${includedir}
6470
6471 Name: $name
6472 Description: $comment
6473 Version: $version
6474 Requires: $requires
6475 Conflicts:
6476 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6477 Cflags: -I\${includedir}
6478 EOF
6479 }
6480
6481 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6482 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6483 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6484 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6485 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6486 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6487 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6488 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6489 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"