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