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     exp10
1821     exp10f
1822     exp2
1823     exp2f
1824     expf
1825     hypot
1826     isinf
1827     isnan
1828     ldexpf
1829     llrint
1830     llrintf
1831     log2
1832     log2f
1833     log10f
1834     lrint
1835     lrintf
1836     powf
1837     rint
1838     round
1839     roundf
1840     sinf
1841     trunc
1842     truncf
1843 "
1844
1845 SYSTEM_FUNCS="
1846     access
1847     aligned_malloc
1848     arc4random
1849     clock_gettime
1850     closesocket
1851     CommandLineToArgvW
1852     CoTaskMemFree
1853     CryptGenRandom
1854     dlopen
1855     fcntl
1856     flt_lim
1857     fork
1858     getaddrinfo
1859     gethrtime
1860     getopt
1861     GetProcessAffinityMask
1862     GetProcessMemoryInfo
1863     GetProcessTimes
1864     getrusage
1865     GetSystemTimeAsFileTime
1866     gettimeofday
1867     glob
1868     glXGetProcAddress
1869     gmtime_r
1870     inet_aton
1871     isatty
1872     jack_port_get_latency_range
1873     kbhit
1874     localtime_r
1875     lstat
1876     lzo1x_999_compress
1877     mach_absolute_time
1878     MapViewOfFile
1879     memalign
1880     mkstemp
1881     mmap
1882     mprotect
1883     nanosleep
1884     PeekNamedPipe
1885     posix_memalign
1886     pthread_cancel
1887     sched_getaffinity
1888     SetConsoleTextAttribute
1889     SetConsoleCtrlHandler
1890     setmode
1891     setrlimit
1892     Sleep
1893     strerror_r
1894     sysconf
1895     sysctl
1896     usleep
1897     UTGetOSTypeFromString
1898     VirtualAlloc
1899     wglGetProcAddress
1900 "
1901
1902 TOOLCHAIN_FEATURES="
1903     as_dn_directive
1904     as_func
1905     as_object_arch
1906     asm_mod_q
1907     attribute_may_alias
1908     attribute_packed
1909     ebp_available
1910     ebx_available
1911     gnu_as
1912     gnu_windres
1913     ibm_asm
1914     inline_asm_labels
1915     inline_asm_nonlocal_labels
1916     inline_asm_direct_symbol_refs
1917     pragma_deprecated
1918     rsync_contimeout
1919     symver_asm_label
1920     symver_gnu_asm
1921     vfp_args
1922     xform_asm
1923     xmm_clobbers
1924 "
1925
1926 TYPES_LIST="
1927     CONDITION_VARIABLE_Ptr
1928     socklen_t
1929     struct_addrinfo
1930     struct_group_source_req
1931     struct_ip_mreq_source
1932     struct_ipv6_mreq
1933     struct_pollfd
1934     struct_rusage_ru_maxrss
1935     struct_sctp_event_subscribe
1936     struct_sockaddr_in6
1937     struct_sockaddr_sa_len
1938     struct_sockaddr_storage
1939     struct_stat_st_mtim_tv_nsec
1940     struct_v4l2_frmivalenum_discrete
1941 "
1942
1943 HAVE_LIST="
1944     $ARCH_EXT_LIST
1945     $(add_suffix _external $ARCH_EXT_LIST)
1946     $(add_suffix _inline   $ARCH_EXT_LIST)
1947     $ARCH_FEATURES
1948     $ATOMICS_LIST
1949     $BUILTIN_LIST
1950     $COMPLEX_FUNCS
1951     $HAVE_LIST_CMDLINE
1952     $HAVE_LIST_PUB
1953     $HEADERS_LIST
1954     $INTRINSICS_LIST
1955     $MATH_FUNCS
1956     $SYSTEM_FUNCS
1957     $THREADS_LIST
1958     $TOOLCHAIN_FEATURES
1959     $TYPES_LIST
1960     atomics_native
1961     dos_paths
1962     dxva2api_cobj
1963     dxva2_lib
1964     winrt
1965     libc_msvcrt
1966     libdc1394_1
1967     libdc1394_2
1968     makeinfo
1969     makeinfo_html
1970     perl
1971     pod2man
1972     sdl
1973     section_data_rel_ro
1974     texi2html
1975     threads
1976     vaapi_x11
1977     vdpau_x11
1978     xlib
1979 "
1980
1981 # options emitted with CONFIG_ prefix but not available on the command line
1982 CONFIG_EXTRA="
1983     aandcttables
1984     ac3dsp
1985     audio_frame_queue
1986     audiodsp
1987     blockdsp
1988     bswapdsp
1989     cabac
1990     dirac_parse
1991     dvprofile
1992     exif
1993     faandct
1994     faanidct
1995     fdctdsp
1996     flacdsp
1997     fmtconvert
1998     frame_thread_encoder
1999     g722dsp
2000     golomb
2001     gplv3
2002     h263dsp
2003     h264chroma
2004     h264dsp
2005     h264pred
2006     h264qpel
2007     hpeldsp
2008     huffman
2009     huffyuvdsp
2010     huffyuvencdsp
2011     idctdsp
2012     iirfilter
2013     imdct15
2014     intrax8
2015     ividsp
2016     jpegtables
2017     libx262
2018     lgplv3
2019     llauddsp
2020     llviddsp
2021     lpc
2022     lzf
2023     me_cmp
2024     mpeg_er
2025     mpegaudio
2026     mpegaudiodsp
2027     mpegvideo
2028     mpegvideoenc
2029     mss34dsp
2030     pixblockdsp
2031     qpeldsp
2032     qsv
2033     qsvdec
2034     qsvenc
2035     rangecoder
2036     riffdec
2037     riffenc
2038     rtpdec
2039     rtpenc_chain
2040     rv34dsp
2041     sinewin
2042     snappy
2043     startcode
2044     texturedsp
2045     texturedspenc
2046     tpeldsp
2047     videodsp
2048     vp3dsp
2049     vp56dsp
2050     vp8dsp
2051     wma_freqs
2052     wmv2dsp
2053 "
2054
2055 CMDLINE_SELECT="
2056     $ARCH_EXT_LIST
2057     $CONFIG_LIST
2058     $HAVE_LIST_CMDLINE
2059     $THREADS_LIST
2060     asm
2061     cross_compile
2062     debug
2063     extra_warnings
2064     logging
2065     lto
2066     optimizations
2067     rpath
2068     stripping
2069 "
2070
2071 PATHS_LIST="
2072     bindir
2073     datadir
2074     docdir
2075     incdir
2076     libdir
2077     mandir
2078     pkgconfigdir
2079     prefix
2080     shlibdir
2081 "
2082
2083 CMDLINE_SET="
2084     $PATHS_LIST
2085     ar
2086     arch
2087     as
2088     assert_level
2089     build_suffix
2090     cc
2091     objcc
2092     cpu
2093     cross_prefix
2094     custom_allocator
2095     cxx
2096     dep_cc
2097     doxygen
2098     env
2099     extra_version
2100     gas
2101     host_cc
2102     host_cflags
2103     host_ld
2104     host_ldflags
2105     host_libs
2106     host_os
2107     install
2108     ld
2109     logfile
2110     malloc_prefix
2111     nm
2112     optflags
2113     pkg_config
2114     pkg_config_flags
2115     progs_suffix
2116     random_seed
2117     ranlib
2118     samples
2119     strip
2120     sws_max_filter_size
2121     sysinclude
2122     sysroot
2123     target_exec
2124     target_os
2125     target_path
2126     target_samples
2127     tempprefix
2128     toolchain
2129     valgrind
2130     yasmexe
2131 "
2132
2133 CMDLINE_APPEND="
2134     extra_cflags
2135     extra_cxxflags
2136     extra_objcflags
2137     host_cppflags
2138 "
2139
2140 # code dependency declarations
2141
2142 # architecture extensions
2143
2144 armv5te_deps="arm"
2145 armv6_deps="arm"
2146 armv6t2_deps="arm"
2147 armv8_deps="aarch64"
2148 neon_deps_any="aarch64 arm"
2149 intrinsics_neon_deps="neon"
2150 vfp_deps_any="aarch64 arm"
2151 vfpv3_deps="vfp"
2152 setend_deps="arm"
2153
2154 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2155
2156 mipsfpu_deps="mips"
2157 mipsdsp_deps="mips"
2158 mipsdspr2_deps="mips"
2159 mips32r2_deps="mips"
2160 mips64r2_deps="mips"
2161 mips64r6_deps="mips"
2162 msa_deps="mips"
2163 mmi_deps="mips"
2164
2165 altivec_deps="ppc"
2166 dcbzl_deps="ppc"
2167 ldbrx_deps="ppc"
2168 ppc4xx_deps="ppc"
2169 vsx_deps="altivec"
2170 power8_deps="vsx"
2171
2172 cpunop_deps="i686"
2173 x86_64_select="i686"
2174 x86_64_suggest="fast_cmov"
2175
2176 amd3dnow_deps="mmx"
2177 amd3dnowext_deps="amd3dnow"
2178 i686_deps="x86"
2179 mmx_deps="x86"
2180 mmxext_deps="mmx"
2181 sse_deps="mmxext"
2182 sse2_deps="sse"
2183 sse3_deps="sse2"
2184 ssse3_deps="sse3"
2185 sse4_deps="ssse3"
2186 sse42_deps="sse4"
2187 aesni_deps="sse42"
2188 avx_deps="sse42"
2189 xop_deps="avx"
2190 fma3_deps="avx"
2191 fma4_deps="avx"
2192 avx2_deps="avx"
2193
2194 mmx_external_deps="yasm"
2195 mmx_inline_deps="inline_asm"
2196 mmx_suggest="mmx_external mmx_inline"
2197
2198 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2199     eval dep=\$${ext}_deps
2200     eval ${ext}_external_deps='"${dep}_external"'
2201     eval ${ext}_inline_deps='"${dep}_inline"'
2202     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2203 done
2204
2205 aligned_stack_if_any="aarch64 ppc x86"
2206 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2207 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2208 fast_unaligned_if_any="aarch64 ppc x86"
2209 simd_align_16_if_any="altivec neon sse"
2210
2211 # system capabilities
2212 symver_if_any="symver_asm_label symver_gnu_asm"
2213 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2214
2215 # threading support
2216 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2217 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2218 atomics_win32_if="MemoryBarrier"
2219 atomics_native_if_any="$ATOMICS_LIST"
2220 w32threads_deps="atomics_native"
2221 threads_if_any="$THREADS_LIST"
2222
2223 # subsystems
2224 dct_select="rdft"
2225 dirac_parse_select="golomb"
2226 error_resilience_select="me_cmp"
2227 faandct_deps="faan fdctdsp"
2228 faanidct_deps="faan idctdsp"
2229 frame_thread_encoder_deps="encoders threads"
2230 intrax8_select="error_resilience"
2231 mdct_select="fft"
2232 rdft_select="fft"
2233 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2234 mpeg_er_select="error_resilience"
2235 mpegaudio_select="mpegaudiodsp"
2236 mpegaudiodsp_select="dct"
2237 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2238 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2239 qsvdec_select="qsv"
2240 qsvenc_select="qsv"
2241
2242 # decoders / encoders
2243 aac_decoder_select="imdct15 mdct sinewin"
2244 aac_fixed_decoder_select="mdct sinewin"
2245 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2247 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2248 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2249 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2250 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2251 adpcm_g722_decoder_select="g722dsp"
2252 adpcm_g722_encoder_select="g722dsp"
2253 aic_decoder_select="golomb idctdsp"
2254 alac_encoder_select="lpc"
2255 als_decoder_select="bswapdsp"
2256 amrnb_decoder_select="lsp"
2257 amrwb_decoder_select="lsp"
2258 amv_decoder_select="sp5x_decoder exif"
2259 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2260 ape_decoder_select="bswapdsp llauddsp"
2261 apng_decoder_select="zlib"
2262 apng_encoder_select="huffyuvencdsp zlib"
2263 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2264 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2265 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2266 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2267 atrac1_decoder_select="mdct sinewin"
2268 atrac3_decoder_select="mdct"
2269 atrac3p_decoder_select="mdct sinewin"
2270 avrn_decoder_select="exif jpegtables"
2271 bink_decoder_select="blockdsp hpeldsp"
2272 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2273 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2274 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2275 cllc_decoder_select="bswapdsp"
2276 comfortnoise_encoder_select="lpc"
2277 cook_decoder_select="audiodsp mdct sinewin"
2278 cscd_decoder_select="lzo"
2279 cscd_decoder_suggest="zlib"
2280 dca_decoder_select="fmtconvert mdct"
2281 dds_decoder_select="texturedsp"
2282 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2283 dnxhd_decoder_select="blockdsp idctdsp"
2284 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2285 dvvideo_decoder_select="dvprofile idctdsp"
2286 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2287 dxa_decoder_select="zlib"
2288 dxv_decoder_select="lzf texturedsp"
2289 eac3_decoder_select="ac3_decoder"
2290 eac3_encoder_select="ac3_encoder"
2291 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2292 eatgq_decoder_select="aandcttables"
2293 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2294 exr_decoder_select="zlib"
2295 ffv1_decoder_select="golomb rangecoder"
2296 ffv1_encoder_select="rangecoder"
2297 ffvhuff_decoder_select="huffyuv_decoder"
2298 ffvhuff_encoder_select="huffyuv_encoder"
2299 fic_decoder_select="golomb"
2300 flac_decoder_select="flacdsp golomb"
2301 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2302 flashsv_decoder_select="zlib"
2303 flashsv_encoder_select="zlib"
2304 flashsv2_encoder_select="zlib"
2305 flashsv2_decoder_select="zlib"
2306 flv_decoder_select="h263_decoder"
2307 flv_encoder_select="h263_encoder"
2308 fourxm_decoder_select="blockdsp bswapdsp"
2309 fraps_decoder_select="bswapdsp huffman"
2310 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2311 g729_decoder_select="audiodsp"
2312 h261_decoder_select="mpegvideo"
2313 h261_encoder_select="aandcttables mpegvideoenc"
2314 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2315 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2316 h263i_decoder_select="h263_decoder"
2317 h263p_decoder_select="h263_decoder"
2318 h263p_encoder_select="h263_encoder"
2319 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2320 h264_decoder_suggest="error_resilience"
2321 h264_qsv_decoder_deps="libmfx"
2322 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2323 h264_qsv_encoder_deps="libmfx"
2324 h264_qsv_encoder_select="qsvenc"
2325 hap_decoder_select="snappy texturedsp"
2326 hap_encoder_deps="libsnappy"
2327 hap_encoder_select="texturedspenc"
2328 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2329 hevc_qsv_encoder_deps="libmfx"
2330 hevc_qsv_decoder_deps="libmfx"
2331 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2332 hevc_qsv_encoder_select="qsvenc"
2333 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2334 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2335 iac_decoder_select="imc_decoder"
2336 imc_decoder_select="bswapdsp fft mdct sinewin"
2337 indeo3_decoder_select="hpeldsp"
2338 indeo4_decoder_select="ividsp"
2339 indeo5_decoder_select="ividsp"
2340 interplay_video_decoder_select="hpeldsp"
2341 jpegls_decoder_select="golomb mjpeg_decoder"
2342 jpegls_encoder_select="golomb"
2343 jv_decoder_select="blockdsp"
2344 lagarith_decoder_select="huffyuvdsp"
2345 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2346 loco_decoder_select="golomb"
2347 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2348 metasound_decoder_select="lsp mdct sinewin"
2349 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2350 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2351 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2352 mjpegb_decoder_select="mjpeg_decoder"
2353 mlp_decoder_select="mlp_parser"
2354 motionpixels_decoder_select="bswapdsp"
2355 mp1_decoder_select="mpegaudio"
2356 mp1float_decoder_select="mpegaudio"
2357 mp2_decoder_select="mpegaudio"
2358 mp2float_decoder_select="mpegaudio"
2359 mp3_decoder_select="mpegaudio"
2360 mp3adu_decoder_select="mpegaudio"
2361 mp3adufloat_decoder_select="mpegaudio"
2362 mp3float_decoder_select="mpegaudio"
2363 mp3on4_decoder_select="mpegaudio"
2364 mp3on4float_decoder_select="mpegaudio"
2365 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2366 mpc8_decoder_select="mpegaudiodsp"
2367 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2368 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2369 mpegvideo_decoder_select="mpegvideo"
2370 mpeg1video_decoder_select="mpegvideo"
2371 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2372 mpeg2video_decoder_select="mpegvideo"
2373 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2374 mpeg2_qsv_decoder_deps="libmfx"
2375 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2376 mpeg2_qsv_encoder_deps="libmfx"
2377 mpeg2_qsv_encoder_select="qsvenc"
2378 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2379 mpeg4_encoder_select="h263_encoder"
2380 msa1_decoder_select="mss34dsp"
2381 msmpeg4v1_decoder_select="h263_decoder"
2382 msmpeg4v2_decoder_select="h263_decoder"
2383 msmpeg4v2_encoder_select="h263_encoder"
2384 msmpeg4v3_decoder_select="h263_decoder"
2385 msmpeg4v3_encoder_select="h263_encoder"
2386 mss2_decoder_select="vc1_decoder"
2387 mts2_decoder_select="mss34dsp"
2388 mxpeg_decoder_select="mjpeg_decoder"
2389 nellymoser_decoder_select="mdct sinewin"
2390 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2391 nuv_decoder_select="idctdsp lzo"
2392 on2avc_decoder_select="mdct"
2393 opus_decoder_deps="swresample"
2394 opus_decoder_select="imdct15"
2395 png_decoder_select="zlib"
2396 png_encoder_select="huffyuvencdsp zlib"
2397 prores_decoder_select="blockdsp idctdsp"
2398 prores_encoder_select="fdctdsp"
2399 qcelp_decoder_select="lsp"
2400 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2401 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2402 ra_144_decoder_select="audiodsp"
2403 ralf_decoder_select="golomb"
2404 rawvideo_decoder_select="bswapdsp"
2405 rscc_decoder_select="zlib"
2406 rtjpeg_decoder_select="me_cmp"
2407 rv10_decoder_select="h263_decoder"
2408 rv10_encoder_select="h263_encoder"
2409 rv20_decoder_select="h263_decoder"
2410 rv20_encoder_select="h263_encoder"
2411 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2412 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2413 screenpresso_decoder_select="zlib"
2414 shorten_decoder_select="golomb"
2415 sipr_decoder_select="lsp"
2416 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2417 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2418 sonic_decoder_select="golomb rangecoder"
2419 sonic_encoder_select="golomb rangecoder"
2420 sonic_ls_encoder_select="golomb rangecoder"
2421 sp5x_decoder_select="mjpeg_decoder"
2422 svq1_decoder_select="hpeldsp"
2423 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2424 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2425 svq3_decoder_suggest="zlib"
2426 tak_decoder_select="audiodsp"
2427 tdsc_decoder_select="zlib mjpeg_decoder"
2428 theora_decoder_select="vp3_decoder"
2429 thp_decoder_select="mjpeg_decoder"
2430 tiff_decoder_suggest="zlib lzma"
2431 tiff_encoder_suggest="zlib"
2432 truehd_decoder_select="mlp_parser"
2433 truemotion2_decoder_select="bswapdsp"
2434 truespeech_decoder_select="bswapdsp"
2435 tscc_decoder_select="zlib"
2436 twinvq_decoder_select="mdct lsp sinewin"
2437 txd_decoder_select="texturedsp"
2438 utvideo_decoder_select="bswapdsp"
2439 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2440 vble_decoder_select="huffyuvdsp"
2441 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2442 vc1image_decoder_select="vc1_decoder"
2443 vc1_qsv_decoder_deps="libmfx"
2444 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2445 vorbis_decoder_select="mdct"
2446 vorbis_encoder_select="mdct"
2447 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2448 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2449 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2450 vp6a_decoder_select="vp6_decoder"
2451 vp6f_decoder_select="vp6_decoder"
2452 vp7_decoder_select="h264pred videodsp vp8dsp"
2453 vp8_decoder_select="h264pred videodsp vp8dsp"
2454 vp9_decoder_select="videodsp vp9_parser"
2455 webp_decoder_select="vp8_decoder"
2456 wmalossless_decoder_select="llauddsp"
2457 wmapro_decoder_select="mdct sinewin wma_freqs"
2458 wmav1_decoder_select="mdct sinewin wma_freqs"
2459 wmav1_encoder_select="mdct sinewin wma_freqs"
2460 wmav2_decoder_select="mdct sinewin wma_freqs"
2461 wmav2_encoder_select="mdct sinewin wma_freqs"
2462 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2463 wmv1_decoder_select="h263_decoder"
2464 wmv1_encoder_select="h263_encoder"
2465 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2466 wmv2_encoder_select="h263_encoder wmv2dsp"
2467 wmv3_decoder_select="vc1_decoder"
2468 wmv3image_decoder_select="wmv3_decoder"
2469 zerocodec_decoder_select="zlib"
2470 zlib_decoder_select="zlib"
2471 zlib_encoder_select="zlib"
2472 zmbv_decoder_select="zlib"
2473 zmbv_encoder_select="zlib"
2474
2475 # hardware accelerators
2476 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2477 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2478 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2479 vaapi_deps="va_va_h"
2480 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2481 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2482 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2483 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2484 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2485 xvmc_deps="X11_extensions_XvMClib_h"
2486
2487 h263_vaapi_hwaccel_deps="vaapi"
2488 h263_vaapi_hwaccel_select="h263_decoder"
2489 h263_videotoolbox_hwaccel_deps="videotoolbox"
2490 h263_videotoolbox_hwaccel_select="h263_decoder"
2491 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2492 h264_d3d11va_hwaccel_deps="d3d11va"
2493 h264_d3d11va_hwaccel_select="h264_decoder"
2494 h264_dxva2_hwaccel_deps="dxva2"
2495 h264_dxva2_hwaccel_select="h264_decoder"
2496 h264_mmal_decoder_deps="mmal"
2497 h264_mmal_hwaccel_deps="mmal"
2498 h264_mmal_decoder_select="h264_decoder"
2499 h264_mmal_encoder_deps="mmal"
2500 h264_qsv_hwaccel_deps="libmfx"
2501 h264_vaapi_hwaccel_deps="vaapi"
2502 h264_vaapi_hwaccel_select="h264_decoder"
2503 h264_vda_decoder_deps="vda"
2504 h264_vda_decoder_select="h264_decoder"
2505 h264_vda_hwaccel_deps="vda"
2506 h264_vda_hwaccel_select="h264_decoder"
2507 h264_vda_old_hwaccel_deps="vda"
2508 h264_vda_old_hwaccel_select="h264_decoder"
2509 h264_vdpau_decoder_deps="vdpau"
2510 h264_vdpau_decoder_select="h264_decoder"
2511 h264_vdpau_hwaccel_deps="vdpau"
2512 h264_vdpau_hwaccel_select="h264_decoder"
2513 h264_videotoolbox_hwaccel_deps="videotoolbox"
2514 h264_videotoolbox_hwaccel_select="h264_decoder"
2515 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2516 hevc_d3d11va_hwaccel_select="hevc_decoder"
2517 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2518 hevc_dxva2_hwaccel_select="hevc_decoder"
2519 hevc_qsv_hwaccel_deps="libmfx"
2520 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2521 hevc_vaapi_hwaccel_select="hevc_decoder"
2522 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2523 hevc_vdpau_hwaccel_select="hevc_decoder"
2524 mpeg_vdpau_decoder_deps="vdpau"
2525 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2526 mpeg_xvmc_hwaccel_deps="xvmc"
2527 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2528 mpeg1_vdpau_decoder_deps="vdpau"
2529 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2530 mpeg1_vdpau_hwaccel_deps="vdpau"
2531 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2532 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2533 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2534 mpeg1_xvmc_hwaccel_deps="xvmc"
2535 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2536 mpeg2_crystalhd_decoder_select="crystalhd"
2537 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2538 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2539 mpeg2_dxva2_hwaccel_deps="dxva2"
2540 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2541 mpeg2_mmal_decoder_deps="mmal"
2542 mpeg2_mmal_hwaccel_deps="mmal"
2543 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2544 mpeg2_qsv_hwaccel_deps="libmfx"
2545 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2546 mpeg2_vaapi_hwaccel_deps="vaapi"
2547 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2548 mpeg2_vdpau_hwaccel_deps="vdpau"
2549 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2550 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2551 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2552 mpeg2_xvmc_hwaccel_deps="xvmc"
2553 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2554 mpeg4_crystalhd_decoder_select="crystalhd"
2555 mpeg4_vaapi_hwaccel_deps="vaapi"
2556 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2557 mpeg4_vdpau_decoder_deps="vdpau"
2558 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2559 mpeg4_vdpau_hwaccel_deps="vdpau"
2560 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2561 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2562 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2563 msmpeg4_crystalhd_decoder_select="crystalhd"
2564 vc1_crystalhd_decoder_select="crystalhd"
2565 vc1_d3d11va_hwaccel_deps="d3d11va"
2566 vc1_d3d11va_hwaccel_select="vc1_decoder"
2567 vc1_dxva2_hwaccel_deps="dxva2"
2568 vc1_dxva2_hwaccel_select="vc1_decoder"
2569 vc1_vaapi_hwaccel_deps="vaapi"
2570 vc1_vaapi_hwaccel_select="vc1_decoder"
2571 vc1_vdpau_decoder_deps="vdpau"
2572 vc1_vdpau_decoder_select="vc1_decoder"
2573 vc1_vdpau_hwaccel_deps="vdpau"
2574 vc1_vdpau_hwaccel_select="vc1_decoder"
2575 vc1_mmal_decoder_deps="mmal"
2576 vc1_mmal_hwaccel_deps="mmal"
2577 vc1_mmal_decoder_select="vc1_decoder"
2578 vc1_qsv_hwaccel_deps="libmfx"
2579 vc1_qsv_hwaccel_select="qsvdec_vc1"
2580 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2581 vp9_d3d11va_hwaccel_select="vp9_decoder"
2582 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2583 vp9_dxva2_hwaccel_select="vp9_decoder"
2584 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2585 vp9_vaapi_hwaccel_select="vp9_decoder"
2586 wmv3_crystalhd_decoder_select="crystalhd"
2587 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2588 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2589 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2590 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2591 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2592
2593 # parsers
2594 h264_parser_select="h264_decoder"
2595 hevc_parser_select="golomb"
2596 mpegvideo_parser_select="mpegvideo"
2597 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2598 vc1_parser_select="mpegvideo startcode vc1_decoder"
2599
2600 # bitstream_filters
2601 mjpeg2jpeg_bsf_select="jpegtables"
2602
2603 # external libraries
2604 chromaprint_muxer_deps="chromaprint"
2605 libaacplus_encoder_deps="libaacplus"
2606 libcelt_decoder_deps="libcelt"
2607 libdcadec_decoder_deps="libdcadec"
2608 libfaac_encoder_deps="libfaac"
2609 libfaac_encoder_select="audio_frame_queue"
2610 libfdk_aac_decoder_deps="libfdk_aac"
2611 libfdk_aac_encoder_deps="libfdk_aac"
2612 libfdk_aac_encoder_select="audio_frame_queue"
2613 libgme_demuxer_deps="libgme"
2614 libgsm_decoder_deps="libgsm"
2615 libgsm_encoder_deps="libgsm"
2616 libgsm_ms_decoder_deps="libgsm"
2617 libgsm_ms_encoder_deps="libgsm"
2618 libilbc_decoder_deps="libilbc"
2619 libilbc_encoder_deps="libilbc"
2620 libkvazaar_encoder_deps="libkvazaar"
2621 libmodplug_demuxer_deps="libmodplug"
2622 libmp3lame_encoder_deps="libmp3lame"
2623 libmp3lame_encoder_select="audio_frame_queue"
2624 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2625 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2626 libopencore_amrnb_encoder_select="audio_frame_queue"
2627 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2628 libopenh264_encoder_deps="libopenh264"
2629 libopenjpeg_decoder_deps="libopenjpeg"
2630 libopenjpeg_encoder_deps="libopenjpeg"
2631 libopus_decoder_deps="libopus"
2632 libopus_encoder_deps="libopus"
2633 libopus_encoder_select="audio_frame_queue"
2634 libquvi_demuxer_deps="libquvi"
2635 libschroedinger_decoder_deps="libschroedinger"
2636 libschroedinger_encoder_deps="libschroedinger"
2637 libshine_encoder_deps="libshine"
2638 libshine_encoder_select="audio_frame_queue"
2639 libspeex_decoder_deps="libspeex"
2640 libspeex_encoder_deps="libspeex"
2641 libspeex_encoder_select="audio_frame_queue"
2642 libstagefright_h264_decoder_deps="libstagefright_h264"
2643 libtheora_encoder_deps="libtheora"
2644 libtwolame_encoder_deps="libtwolame"
2645 libvo_aacenc_encoder_deps="libvo_aacenc"
2646 libvo_aacenc_encoder_select="audio_frame_queue"
2647 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2648 libvorbis_decoder_deps="libvorbis"
2649 libvorbis_encoder_deps="libvorbis"
2650 libvorbis_encoder_select="audio_frame_queue"
2651 libvpx_vp8_decoder_deps="libvpx"
2652 libvpx_vp8_encoder_deps="libvpx"
2653 libvpx_vp9_decoder_deps="libvpx"
2654 libvpx_vp9_encoder_deps="libvpx"
2655 libwavpack_encoder_deps="libwavpack"
2656 libwebp_encoder_deps="libwebp"
2657 libwebp_anim_encoder_deps="libwebp"
2658 libx262_encoder_deps="libx262"
2659 libx264_encoder_deps="libx264"
2660 libx264rgb_encoder_deps="libx264"
2661 libx264rgb_encoder_select="libx264_encoder"
2662 libx265_encoder_deps="libx265"
2663 libxavs_encoder_deps="libxavs"
2664 libxvid_encoder_deps="libxvid"
2665 libutvideo_decoder_deps="libutvideo"
2666 libutvideo_encoder_deps="libutvideo"
2667 libzvbi_teletext_decoder_deps="libzvbi"
2668 nvenc_encoder_deps="nvenc"
2669 nvenc_h264_encoder_deps="nvenc"
2670 nvenc_hevc_encoder_deps="nvenc"
2671
2672 # demuxers / muxers
2673 ac3_demuxer_select="ac3_parser"
2674 asf_demuxer_select="riffdec"
2675 asf_o_demuxer_select="riffdec"
2676 asf_muxer_select="riffenc"
2677 asf_stream_muxer_select="asf_muxer"
2678 avi_demuxer_select="riffdec exif"
2679 avi_muxer_select="riffenc"
2680 avisynth_demuxer_deps="avisynth"
2681 avisynth_demuxer_select="riffdec"
2682 caf_demuxer_select="riffdec"
2683 dash_muxer_select="mp4_muxer"
2684 dirac_demuxer_select="dirac_parser"
2685 dts_demuxer_select="dca_parser"
2686 dtshd_demuxer_select="dca_parser"
2687 dv_demuxer_select="dvprofile"
2688 dv_muxer_select="dvprofile"
2689 dxa_demuxer_select="riffdec"
2690 eac3_demuxer_select="ac3_parser"
2691 f4v_muxer_select="mov_muxer"
2692 flac_demuxer_select="flac_parser"
2693 hds_muxer_select="flv_muxer"
2694 hls_muxer_select="mpegts_muxer"
2695 image2_alias_pix_demuxer_select="image2_demuxer"
2696 image2_brender_pix_demuxer_select="image2_demuxer"
2697 ipod_muxer_select="mov_muxer"
2698 ismv_muxer_select="mov_muxer"
2699 libnut_demuxer_deps="libnut"
2700 libnut_muxer_deps="libnut"
2701 matroska_audio_muxer_select="matroska_muxer"
2702 matroska_demuxer_select="riffdec"
2703 matroska_demuxer_suggest="bzlib lzo zlib"
2704 matroska_muxer_select="riffenc"
2705 mmf_muxer_select="riffenc"
2706 mov_demuxer_select="riffdec"
2707 mov_demuxer_suggest="zlib"
2708 mov_muxer_select="riffenc rtpenc_chain"
2709 mp3_demuxer_select="mpegaudio_parser"
2710 mp4_muxer_select="mov_muxer"
2711 mpegts_muxer_select="adts_muxer latm_muxer"
2712 mpegtsraw_demuxer_select="mpegts_demuxer"
2713 mxf_d10_muxer_select="mxf_muxer"
2714 mxf_opatom_muxer_select="mxf_muxer"
2715 nut_muxer_select="riffenc"
2716 nuv_demuxer_select="riffdec"
2717 oga_muxer_select="ogg_muxer"
2718 ogg_demuxer_select="dirac_parse"
2719 opus_muxer_select="ogg_muxer"
2720 psp_muxer_select="mov_muxer"
2721 rtp_demuxer_select="sdp_demuxer"
2722 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2723 rtsp_demuxer_select="http_protocol rtpdec"
2724 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2725 sap_demuxer_select="sdp_demuxer"
2726 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2727 sdp_demuxer_select="rtpdec"
2728 smoothstreaming_muxer_select="ismv_muxer"
2729 spdif_muxer_select="aac_parser"
2730 spx_muxer_select="ogg_muxer"
2731 tak_demuxer_select="tak_parser"
2732 tg2_muxer_select="mov_muxer"
2733 tgp_muxer_select="mov_muxer"
2734 vobsub_demuxer_select="mpegps_demuxer"
2735 w64_demuxer_select="wav_demuxer"
2736 w64_muxer_select="wav_muxer"
2737 wav_demuxer_select="riffdec"
2738 wav_muxer_select="riffenc"
2739 webm_muxer_select="riffenc"
2740 wtv_demuxer_select="riffdec"
2741 wtv_muxer_select="riffenc"
2742 xmv_demuxer_select="riffdec"
2743 xwma_demuxer_select="riffdec"
2744
2745 # indevs / outdevs
2746 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2747 alsa_outdev_deps="alsa_asoundlib_h"
2748 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2749 avfoundation_indev_select="avfoundation"
2750 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2751 caca_outdev_deps="libcaca"
2752 decklink_outdev_deps="decklink pthreads"
2753 decklink_outdev_extralibs="-lstdc++"
2754 decklink_indev_deps="decklink pthreads"
2755 decklink_indev_extralibs="-lstdc++"
2756 dshow_indev_deps="IBaseFilter"
2757 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2758 dv1394_indev_deps="dv1394"
2759 dv1394_indev_select="dv_demuxer"
2760 fbdev_indev_deps="linux_fb_h"
2761 fbdev_outdev_deps="linux_fb_h"
2762 gdigrab_indev_deps="CreateDIBSection"
2763 gdigrab_indev_extralibs="-lgdi32"
2764 gdigrab_indev_select="bmp_decoder"
2765 iec61883_indev_deps="libiec61883"
2766 jack_indev_deps="jack_jack_h sem_timedwait"
2767 lavfi_indev_deps="avfilter"
2768 libcdio_indev_deps="libcdio"
2769 libdc1394_indev_deps="libdc1394"
2770 libv4l2_indev_deps="libv4l2"
2771 openal_indev_deps="openal"
2772 opengl_outdev_deps="opengl"
2773 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2774 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2775 pulse_indev_deps="libpulse"
2776 pulse_outdev_deps="libpulse"
2777 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2778 qtkit_indev_select="qtkit"
2779 sdl_outdev_deps="sdl"
2780 sndio_indev_deps="sndio_h"
2781 sndio_outdev_deps="sndio_h"
2782 v4l_indev_deps="linux_videodev_h"
2783 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2784 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2785 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2786 vfwcap_indev_extralibs="-lavicap32"
2787 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2788 xv_outdev_extralibs="-lXv -lX11 -lXext"
2789 x11grab_indev_deps="x11grab"
2790 x11grab_xcb_indev_deps="libxcb"
2791
2792 # protocols
2793 async_protocol_deps="threads"
2794 bluray_protocol_deps="libbluray"
2795 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2796 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2797 ffrtmpcrypt_protocol_select="tcp_protocol"
2798 ffrtmphttp_protocol_deps="!librtmp_protocol"
2799 ffrtmphttp_protocol_select="http_protocol"
2800 ftp_protocol_select="tcp_protocol"
2801 gopher_protocol_select="network"
2802 http_protocol_select="tcp_protocol"
2803 httpproxy_protocol_select="tcp_protocol"
2804 https_protocol_select="tls_protocol"
2805 icecast_protocol_select="http_protocol"
2806 librtmp_protocol_deps="librtmp"
2807 librtmpe_protocol_deps="librtmp"
2808 librtmps_protocol_deps="librtmp"
2809 librtmpt_protocol_deps="librtmp"
2810 librtmpte_protocol_deps="librtmp"
2811 libsmbclient_protocol_deps="libsmbclient gplv3"
2812 libssh_protocol_deps="libssh"
2813 mmsh_protocol_select="http_protocol"
2814 mmst_protocol_select="network"
2815 rtmp_protocol_deps="!librtmp_protocol"
2816 rtmp_protocol_select="tcp_protocol"
2817 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2818 rtmps_protocol_deps="!librtmp_protocol"
2819 rtmps_protocol_select="tls_protocol"
2820 rtmpt_protocol_select="ffrtmphttp_protocol"
2821 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2822 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2823 rtp_protocol_select="udp_protocol"
2824 sctp_protocol_deps="struct_sctp_event_subscribe"
2825 sctp_protocol_select="network"
2826 srtp_protocol_select="rtp_protocol"
2827 tcp_protocol_select="network"
2828 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2829 tls_gnutls_protocol_select="tcp_protocol"
2830 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2831 tls_openssl_protocol_select="tcp_protocol"
2832 tls_schannel_protocol_deps="schannel"
2833 tls_schannel_protocol_select="tcp_protocol"
2834 tls_securetransport_protocol_deps="securetransport"
2835 tls_securetransport_protocol_select="tcp_protocol"
2836 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2837 udp_protocol_select="network"
2838 udplite_protocol_select="network"
2839 unix_protocol_deps="sys_un_h"
2840 unix_protocol_select="network"
2841
2842 # filters
2843 amovie_filter_deps="avcodec avformat"
2844 anequalizer_filter_deps="cabs cexp"
2845 aresample_filter_deps="swresample"
2846 ass_filter_deps="libass"
2847 asyncts_filter_deps="avresample"
2848 atempo_filter_deps="avcodec"
2849 atempo_filter_select="rdft"
2850 azmq_filter_deps="libzmq"
2851 blackframe_filter_deps="gpl"
2852 boxblur_filter_deps="gpl"
2853 bs2b_filter_deps="libbs2b"
2854 colormatrix_filter_deps="gpl"
2855 cover_rect_filter_deps="avcodec avformat gpl"
2856 cropdetect_filter_deps="gpl"
2857 delogo_filter_deps="gpl"
2858 deshake_filter_select="pixelutils"
2859 drawtext_filter_deps="libfreetype"
2860 ebur128_filter_deps="gpl"
2861 eq_filter_deps="gpl"
2862 fftfilt_filter_deps="avcodec"
2863 fftfilt_filter_select="rdft"
2864 flite_filter_deps="libflite"
2865 find_rect_filter_deps="avcodec avformat gpl"
2866 frei0r_filter_deps="frei0r dlopen"
2867 frei0r_src_filter_deps="frei0r dlopen"
2868 fspp_filter_deps="gpl"
2869 geq_filter_deps="gpl"
2870 histeq_filter_deps="gpl"
2871 hqdn3d_filter_deps="gpl"
2872 interlace_filter_deps="gpl"
2873 kerndeint_filter_deps="gpl"
2874 ladspa_filter_deps="ladspa dlopen"
2875 mcdeint_filter_deps="avcodec gpl"
2876 movie_filter_deps="avcodec avformat"
2877 mpdecimate_filter_deps="gpl"
2878 mpdecimate_filter_select="pixelutils"
2879 mptestsrc_filter_deps="gpl"
2880 negate_filter_deps="lut_filter"
2881 perspective_filter_deps="gpl"
2882 pp7_filter_deps="gpl"
2883 ocr_filter_deps="libtesseract"
2884 ocv_filter_deps="libopencv"
2885 owdenoise_filter_deps="gpl"
2886 pan_filter_deps="swresample"
2887 phase_filter_deps="gpl"
2888 pp_filter_deps="gpl postproc"
2889 pullup_filter_deps="gpl"
2890 removelogo_filter_deps="avcodec avformat swscale"
2891 repeatfields_filter_deps="gpl"
2892 resample_filter_deps="avresample"
2893 rubberband_filter_deps="librubberband"
2894 sab_filter_deps="gpl swscale"
2895 scale_filter_deps="swscale"
2896 scale2ref_filter_deps="swscale"
2897 select_filter_select="pixelutils"
2898 smartblur_filter_deps="gpl swscale"
2899 showcqt_filter_deps="avcodec avformat swscale"
2900 showcqt_filter_select="fft"
2901 showfreqs_filter_deps="avcodec"
2902 showfreqs_filter_select="fft"
2903 showspectrum_filter_deps="avcodec"
2904 showspectrum_filter_select="rdft"
2905 sofalizer_filter_deps="netcdf avcodec"
2906 sofalizer_filter_select="fft"
2907 spp_filter_deps="gpl avcodec"
2908 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2909 stereo3d_filter_deps="gpl"
2910 subtitles_filter_deps="avformat avcodec libass"
2911 super2xsai_filter_deps="gpl"
2912 tinterlace_filter_deps="gpl"
2913 vidstabdetect_filter_deps="libvidstab"
2914 vidstabtransform_filter_deps="libvidstab"
2915 pixfmts_super2xsai_test_deps="super2xsai_filter"
2916 tinterlace_merge_test_deps="tinterlace_filter"
2917 tinterlace_pad_test_deps="tinterlace_filter"
2918 uspp_filter_deps="gpl avcodec"
2919 zmq_filter_deps="libzmq"
2920 zoompan_filter_deps="swscale"
2921 zscale_filter_deps="libzimg"
2922
2923 # examples
2924 avio_reading="avformat avcodec avutil"
2925 avio_dir_cmd="avformat avutil"
2926 avcodec_example_deps="avcodec avutil"
2927 decoding_encoding_example_deps="avcodec avformat avutil"
2928 demuxing_decoding_example_deps="avcodec avformat avutil"
2929 extract_mvs_example_deps="avcodec avformat avutil"
2930 filter_audio_example_deps="avfilter avutil"
2931 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2932 filtering_video_example_deps="avfilter avcodec avformat avutil"
2933 metadata_example_deps="avformat avutil"
2934 muxing_example_deps="avcodec avformat avutil swscale"
2935 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2936 remuxing_example_deps="avcodec avformat avutil"
2937 resampling_audio_example_deps="avutil swresample"
2938 scaling_video_example_deps="avutil swscale"
2939 transcode_aac_example_deps="avcodec avformat swresample"
2940 transcoding_example_deps="avfilter avcodec avformat avutil"
2941
2942 # libraries, in linking order
2943 avcodec_deps="avutil"
2944 avdevice_deps="avformat avcodec avutil"
2945 avfilter_deps="avutil"
2946 avformat_deps="avcodec avutil"
2947 avresample_deps="avutil"
2948 postproc_deps="avutil gpl"
2949 swresample_deps="avutil"
2950 swscale_deps="avutil"
2951
2952 # programs
2953 ffmpeg_deps="avcodec avfilter avformat swresample"
2954 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2955                null_filter
2956                setpts_filter trim_filter"
2957 ffplay_deps="avcodec avformat swscale swresample sdl"
2958 ffplay_libs='$sdl_libs'
2959 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2960 ffprobe_deps="avcodec avformat"
2961 ffserver_deps="avformat fork sarestart"
2962 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2963
2964 # documentation
2965 podpages_deps="perl"
2966 manpages_deps="perl pod2man"
2967 htmlpages_deps="perl"
2968 htmlpages_deps_any="makeinfo_html texi2html"
2969 txtpages_deps="perl makeinfo"
2970 doc_deps_any="manpages htmlpages podpages txtpages"
2971
2972 # default parameters
2973
2974 logfile="config.log"
2975
2976 # installation paths
2977 prefix_default="/usr/local"
2978 bindir_default='${prefix}/bin'
2979 datadir_default='${prefix}/share/ffmpeg'
2980 docdir_default='${prefix}/share/doc/ffmpeg'
2981 incdir_default='${prefix}/include'
2982 libdir_default='${prefix}/lib'
2983 mandir_default='${prefix}/share/man'
2984
2985 # toolchain
2986 ar_default="ar"
2987 cc_default="gcc"
2988 cxx_default="g++"
2989 host_cc_default="gcc"
2990 cp_f="cp -f"
2991 doxygen_default="doxygen"
2992 install="install"
2993 ln_s="ln -s -f"
2994 nm_default="nm -g"
2995 objformat="elf"
2996 pkg_config_default=pkg-config
2997 ranlib_default="ranlib"
2998 strip_default="strip"
2999 yasmexe_default="yasm"
3000 windres_default="windres"
3001
3002 # OS
3003 target_os_default=$(tolower $(uname -s))
3004 host_os=$target_os_default
3005
3006 # machine
3007 if test "$target_os_default" = aix; then
3008     arch_default=$(uname -p)
3009     strip_default="strip -X32_64"
3010 else
3011     arch_default=$(uname -m)
3012 fi
3013 cpu="generic"
3014 intrinsics="none"
3015
3016 # configurable options
3017 enable $PROGRAM_LIST
3018 enable $DOCUMENT_LIST
3019 enable $EXAMPLE_LIST
3020 enable $(filter_out avresample $LIBRARY_LIST)
3021 enable stripping
3022
3023 enable asm
3024 enable debug
3025 enable doc
3026 enable faan faandct faanidct
3027 enable optimizations
3028 enable runtime_cpudetect
3029 enable safe_bitstream_reader
3030 enable static
3031 enable swscale_alpha
3032 enable valgrind_backtrace
3033
3034 sws_max_filter_size_default=256
3035 set_default sws_max_filter_size
3036
3037 # Enable hwaccels by default.
3038 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3039 enable xlib
3040
3041 # build settings
3042 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3043 LIBPREF="lib"
3044 LIBSUF=".a"
3045 FULLNAME='$(NAME)$(BUILDSUF)'
3046 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3047 SLIBPREF="lib"
3048 SLIBSUF=".so"
3049 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3050 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3051 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3052 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3053 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3054 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3055
3056 asflags_filter=echo
3057 cflags_filter=echo
3058 ldflags_filter=echo
3059
3060 AS_C='-c'
3061 AS_O='-o $@'
3062 CC_C='-c'
3063 CC_E='-E -o $@'
3064 CC_O='-o $@'
3065 CXX_C='-c'
3066 CXX_O='-o $@'
3067 OBJCC_C='-c'
3068 OBJCC_E='-E -o $@'
3069 OBJCC_O='-o $@'
3070 LD_O='-o $@'
3071 LD_LIB='-l%'
3072 LD_PATH='-L'
3073 HOSTCC_C='-c'
3074 HOSTCC_E='-E -o $@'
3075 HOSTCC_O='-o $@'
3076 HOSTLD_O='-o $@'
3077
3078 host_libs='-lm'
3079 host_cflags_filter=echo
3080 host_ldflags_filter=echo
3081
3082 target_path='$(CURDIR)'
3083
3084 # since the object filename is not given with the -MM flag, the compiler
3085 # is only able to print the basename, and we must add the path ourselves
3086 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3087 DEPFLAGS='-MM'
3088
3089 # find source path
3090 if test -f configure; then
3091     source_path=.
3092 else
3093     source_path=$(cd $(dirname "$0"); pwd)
3094     case "$source_path" in
3095         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3096     esac
3097     test -e "$source_path/config.h" &&
3098         die "Out of tree builds are impossible with config.h in source dir."
3099 fi
3100
3101 for v in "$@"; do
3102     r=${v#*=}
3103     l=${v%"$r"}
3104     r=$(sh_quote "$r")
3105     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3106 done
3107
3108 find_things(){
3109     thing=$1
3110     pattern=$2
3111     file=$source_path/$3
3112     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3113 }
3114
3115 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3116 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3117 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3118 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3119 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3120 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3121 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3122 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3123 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3124 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3125 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3126
3127 ALL_COMPONENTS="
3128     $BSF_LIST
3129     $DECODER_LIST
3130     $DEMUXER_LIST
3131     $ENCODER_LIST
3132     $FILTER_LIST
3133     $HWACCEL_LIST
3134     $INDEV_LIST
3135     $MUXER_LIST
3136     $OUTDEV_LIST
3137     $PARSER_LIST
3138     $PROTOCOL_LIST
3139 "
3140
3141 for n in $COMPONENT_LIST; do
3142     v=$(toupper ${n%s})_LIST
3143     eval enable \$$v
3144     eval ${n}_if_any="\$$v"
3145 done
3146
3147 enable $ARCH_EXT_LIST
3148
3149 die_unknown(){
3150     echo "Unknown option \"$1\"."
3151     echo "See $0 --help for available options."
3152     exit 1
3153 }
3154
3155 print_in_columns() {
3156     cols=$(expr $ncols / 24)
3157     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3158 }
3159
3160 show_list() {
3161     suffix=_$1
3162     shift
3163     echo $* | sed s/$suffix//g | print_in_columns
3164     exit 0
3165 }
3166
3167 rand_list(){
3168     IFS=', '
3169     set -- $*
3170     unset IFS
3171     for thing; do
3172         comp=${thing%:*}
3173         prob=${thing#$comp}
3174         prob=${prob#:}
3175         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3176         echo "prob ${prob:-0.5}"
3177         printf '%s\n' $comp
3178     done
3179 }
3180
3181 do_random(){
3182     action=$1
3183     shift
3184     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3185     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3186 }
3187
3188 for opt do
3189     optval="${opt#*=}"
3190     case "$opt" in
3191         --extra-ldflags=*)
3192             add_ldflags $optval
3193         ;;
3194         --extra-ldexeflags=*)
3195             add_ldexeflags $optval
3196         ;;
3197         --extra-ldlibflags=*)
3198             add_ldlibflags $optval
3199         ;;
3200         --extra-libs=*)
3201             add_extralibs $optval
3202         ;;
3203         --disable-devices)
3204             disable $INDEV_LIST $OUTDEV_LIST
3205         ;;
3206         --enable-debug=*)
3207             debuglevel="$optval"
3208         ;;
3209         --disable-programs)
3210             disable $PROGRAM_LIST
3211         ;;
3212         --disable-everything)
3213             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3214         ;;
3215         --disable-all)
3216             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3217             disable $LIBRARY_LIST $PROGRAM_LIST doc
3218             enable avutil
3219         ;;
3220         --enable-random|--disable-random)
3221             action=${opt%%-random}
3222             do_random ${action#--} $COMPONENT_LIST
3223         ;;
3224         --enable-random=*|--disable-random=*)
3225             action=${opt%%-random=*}
3226             do_random ${action#--} $optval
3227         ;;
3228         --enable-*=*|--disable-*=*)
3229             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3230             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3231             eval list=\$$(toupper $thing)_LIST
3232             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3233             list=$(filter "$name" $list)
3234             [ "$list" = "" ] && warn "Option $opt did not match anything"
3235             $action $list
3236         ;;
3237         --enable-?*|--disable-?*)
3238             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3239             if is_in $option $COMPONENT_LIST; then
3240                 test $action = disable && action=unset
3241                 eval $action \$$(toupper ${option%s})_LIST
3242             elif is_in $option $CMDLINE_SELECT; then
3243                 $action $option
3244             else
3245                 die_unknown $opt
3246             fi
3247         ;;
3248         --list-*)
3249             NAME="${opt#--list-}"
3250             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3251             NAME=${NAME%s}
3252             eval show_list $NAME \$$(toupper $NAME)_LIST
3253         ;;
3254         --help|-h) show_help
3255         ;;
3256         --fatal-warnings) enable fatal_warnings
3257         ;;
3258         *)
3259             optname="${opt%%=*}"
3260             optname="${optname#--}"
3261             optname=$(echo "$optname" | sed 's/-/_/g')
3262             if is_in $optname $CMDLINE_SET; then
3263                 eval $optname='$optval'
3264             elif is_in $optname $CMDLINE_APPEND; then
3265                 append $optname "$optval"
3266             else
3267                 die_unknown $opt
3268             fi
3269         ;;
3270     esac
3271 done
3272
3273 for e in $env; do
3274     eval "export $e"
3275 done
3276
3277 disabled logging && logfile=/dev/null
3278
3279 # Disable all the library-specific components if the library itself
3280 # is disabled, see AVCODEC_LIST and following _LIST variables.
3281
3282 disable_components(){
3283     disabled ${1} && disable $(
3284         eval components="\$$(toupper ${1})_COMPONENTS"
3285         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3286     )
3287 }
3288
3289 map 'disable_components $v' $LIBRARY_LIST
3290
3291 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3292 set >> $logfile
3293
3294 test -n "$valgrind" && toolchain="valgrind-memcheck"
3295
3296 case "$toolchain" in
3297     clang-asan)
3298         cc_default="clang"
3299         add_cflags  -fsanitize=address
3300         add_ldflags -fsanitize=address
3301     ;;
3302     clang-tsan)
3303         cc_default="clang"
3304         add_cflags  -fsanitize=thread -pie
3305         add_ldflags -fsanitize=thread -pie
3306     ;;
3307     clang-usan)
3308         cc_default="clang"
3309         add_cflags  -fsanitize=undefined
3310         add_ldflags -fsanitize=undefined
3311     ;;
3312     gcc-asan)
3313         cc_default="gcc"
3314         add_cflags  -fsanitize=address
3315         add_ldflags -fsanitize=address
3316     ;;
3317     gcc-tsan)
3318         cc_default="gcc"
3319         add_cflags  -fsanitize=thread -pie -fPIC
3320         add_ldflags -fsanitize=thread -pie -fPIC
3321     ;;
3322     gcc-usan)
3323         cc_default="gcc"
3324         add_cflags  -fsanitize=undefined
3325         add_ldflags -fsanitize=undefined
3326     ;;
3327     valgrind-massif)
3328         target_exec_default=${valgrind:-"valgrind"}
3329         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"
3330     ;;
3331     valgrind-memcheck)
3332         target_exec_default=${valgrind:-"valgrind"}
3333         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3334     ;;
3335     msvc)
3336         # Check whether the current MSVC version needs the C99 converter.
3337         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3338         # support enough of C99 to build ffmpeg. Default to the new
3339         # behaviour if the regexp was unable to match anything, since this
3340         # successfully parses the version number of existing supported
3341         # versions that require the converter (MSVC 2010 and 2012).
3342         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3343         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3344             cc_default="cl"
3345         else
3346             cc_default="c99wrap cl"
3347         fi
3348         ld_default="$source_path/compat/windows/mslink"
3349         nm_default="dumpbin -symbols"
3350         ar_default="lib"
3351         case "$arch" in
3352         arm*)
3353             as_default="armasm"
3354             ;;
3355         esac
3356         target_os_default="win32"
3357         # Use a relative path for TMPDIR. This makes sure all the
3358         # ffconf temp files are written with a relative path, avoiding
3359         # issues with msys/win32 path conversion for MSVC parameters
3360         # such as -Fo<file> or -out:<file>.
3361         TMPDIR=.
3362     ;;
3363     icl)
3364         cc_default="icl"
3365         ld_default="xilink"
3366         nm_default="dumpbin -symbols"
3367         ar_default="xilib"
3368         target_os_default="win32"
3369         TMPDIR=.
3370     ;;
3371     gcov)
3372         add_cflags  -fprofile-arcs -ftest-coverage
3373         add_ldflags -fprofile-arcs -ftest-coverage
3374     ;;
3375     hardened)
3376         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3377         add_cflags   -fno-strict-overflow -fstack-protector-all
3378         add_ldflags  -Wl,-z,relro -Wl,-z,now
3379     ;;
3380     ?*)
3381         die "Unknown toolchain $toolchain"
3382     ;;
3383 esac
3384
3385 test -n "$cross_prefix" && enable cross_compile
3386
3387 if enabled cross_compile; then
3388     test -n "$arch" && test -n "$target_os" ||
3389         die "Must specify target arch and OS when cross-compiling"
3390 fi
3391
3392 ar_default="${cross_prefix}${ar_default}"
3393 cc_default="${cross_prefix}${cc_default}"
3394 cxx_default="${cross_prefix}${cxx_default}"
3395 nm_default="${cross_prefix}${nm_default}"
3396 pkg_config_default="${cross_prefix}${pkg_config_default}"
3397 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3398     ranlib_default="${cross_prefix}${ranlib_default} -D"
3399 else
3400     ranlib_default="${cross_prefix}${ranlib_default}"
3401 fi
3402 strip_default="${cross_prefix}${strip_default}"
3403 windres_default="${cross_prefix}${windres_default}"
3404
3405 sysinclude_default="${sysroot}/usr/include"
3406
3407 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3408     target_exec target_os yasmexe
3409 enabled cross_compile || host_cc_default=$cc
3410 set_default host_cc
3411
3412 pkg_config_fail_message=""
3413 if ! $pkg_config --version >/dev/null 2>&1; then
3414     warn "$pkg_config not found, library detection may fail."
3415     pkg_config=false
3416 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3417     pkg_config_fail_message="
3418 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3419 fi
3420
3421 if test $doxygen != $doxygen_default && \
3422   ! $doxygen --version >/dev/null 2>&1; then
3423     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3424 fi
3425
3426 exesuf() {
3427     case $1 in
3428         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3429     esac
3430 }
3431
3432 EXESUF=$(exesuf $target_os)
3433 HOSTEXESUF=$(exesuf $host_os)
3434
3435 # set temporary file name
3436 : ${TMPDIR:=$TEMPDIR}
3437 : ${TMPDIR:=$TMP}
3438 : ${TMPDIR:=/tmp}
3439
3440 if [ -n "$tempprefix" ] ; then
3441     mktemp(){
3442         echo $tempprefix.${HOSTNAME}.${UID}
3443     }
3444 elif ! check_cmd mktemp -u XXXXXX; then
3445     # simple replacement for missing mktemp
3446     # NOT SAFE FOR GENERAL USE
3447     mktemp(){
3448         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3449     }
3450 fi
3451
3452 tmpfile(){
3453     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3454         (set -C; exec > $tmp) 2>/dev/null ||
3455         die "Unable to create temporary file in $TMPDIR."
3456     append TMPFILES $tmp
3457     eval $1=$tmp
3458 }
3459
3460 trap 'rm -f -- $TMPFILES' EXIT
3461
3462 tmpfile TMPASM .asm
3463 tmpfile TMPC   .c
3464 tmpfile TMPCPP .cpp
3465 tmpfile TMPE   $EXESUF
3466 tmpfile TMPH   .h
3467 tmpfile TMPM   .m
3468 tmpfile TMPO   .o
3469 tmpfile TMPS   .S
3470 tmpfile TMPSH  .sh
3471 tmpfile TMPV   .ver
3472
3473 unset -f mktemp
3474
3475 chmod +x $TMPE
3476
3477 # make sure we can execute files in $TMPDIR
3478 cat > $TMPSH 2>> $logfile <<EOF
3479 #! /bin/sh
3480 EOF
3481 chmod +x $TMPSH >> $logfile 2>&1
3482 if ! $TMPSH >> $logfile 2>&1; then
3483     cat <<EOF
3484 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3485 variable to another directory and make sure that it is not mounted noexec.
3486 EOF
3487     die "Sanity test failed."
3488 fi
3489
3490 armasm_flags(){
3491     for flag; do
3492         case $flag in
3493             # Filter out MSVC cl.exe options from cflags that shouldn't
3494             # be passed to gas-preprocessor
3495             -M[TD]*)                                            ;;
3496             *)                  echo $flag                      ;;
3497         esac
3498    done
3499 }
3500
3501 ccc_flags(){
3502     for flag; do
3503         case $flag in
3504             -std=c99)           echo -c99                       ;;
3505             -mcpu=*)            echo -arch ${flag#*=}           ;;
3506             -mieee)             echo -ieee                      ;;
3507             -O*|-fast)          echo $flag                      ;;
3508             -fno-math-errno)    echo -assume nomath_errno       ;;
3509             -g)                 echo -g3                        ;;
3510             -Wall)              echo -msg_enable level2         ;;
3511             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3512             -Wl,*)              echo $flag                      ;;
3513             -f*|-W*)                                            ;;
3514             *)                  echo $flag                      ;;
3515         esac
3516    done
3517 }
3518
3519 cparser_flags(){
3520     for flag; do
3521         case $flag in
3522             -Wno-switch)             echo -Wno-switch-enum ;;
3523             -Wno-format-zero-length) ;;
3524             -Wdisabled-optimization) ;;
3525             -Wno-pointer-sign)       echo -Wno-other ;;
3526             *)                       echo $flag ;;
3527         esac
3528     done
3529 }
3530
3531 msvc_common_flags(){
3532     for flag; do
3533         case $flag in
3534             # In addition to specifying certain flags under the compiler
3535             # specific filters, they must be specified here as well or else the
3536             # generic catch all at the bottom will print the original flag.
3537             -Wall)                ;;
3538             -std=c99)             ;;
3539             # Common flags
3540             -fomit-frame-pointer) ;;
3541             -g)                   echo -Z7 ;;
3542             -fno-math-errno)      ;;
3543             -fno-common)          ;;
3544             -fno-signed-zeros)    ;;
3545             -fPIC)                ;;
3546             -mthumb)              ;;
3547             -march=*)             ;;
3548             -lz)                  echo zlib.lib ;;
3549             -lavifil32)           echo vfw32.lib ;;
3550             -lavicap32)           echo vfw32.lib user32.lib ;;
3551             -l*)                  echo ${flag#-l}.lib ;;
3552             -LARGEADDRESSAWARE)   echo $flag ;;
3553             -L*)                  echo -libpath:${flag#-L} ;;
3554             *)                    echo $flag ;;
3555         esac
3556     done
3557 }
3558
3559 msvc_flags(){
3560     msvc_common_flags "$@"
3561     for flag; do
3562         case $flag in
3563             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3564                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3565                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3566                                        -wd4307 \
3567                                        -wd4273 -wd4554 -wd4701 ;;
3568         esac
3569     done
3570 }
3571
3572 icl_flags(){
3573     msvc_common_flags "$@"
3574     for flag; do
3575         case $flag in
3576             # Despite what Intel's documentation says -Wall, which is supported
3577             # on Windows, does enable remarks so disable them here.
3578             -Wall)                echo $flag -Qdiag-disable:remark ;;
3579             -std=c99)             echo -Qstd=c99 ;;
3580             -flto)                echo -ipo ;;
3581         esac
3582     done
3583 }
3584
3585 icc_flags(){
3586     for flag; do
3587         case $flag in
3588             -flto)                echo -ipo ;;
3589             *)                    echo $flag ;;
3590         esac
3591     done
3592 }
3593
3594 pgi_flags(){
3595     for flag; do
3596         case $flag in
3597             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3598             -fomit-frame-pointer) echo -Mnoframe ;;
3599             -g)                   echo -gopt ;;
3600             *)                    echo $flag ;;
3601         esac
3602     done
3603 }
3604
3605 suncc_flags(){
3606     for flag; do
3607         case $flag in
3608             -march=*|-mcpu=*)
3609                 case "${flag#*=}" in
3610                     native)                   echo -xtarget=native       ;;
3611                     v9|niagara)               echo -xarch=sparc          ;;
3612                     ultrasparc)               echo -xarch=sparcvis       ;;
3613                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3614                     i586|pentium)             echo -xchip=pentium        ;;
3615                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3616                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3617                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3618                     pentium4*)          echo -xtarget=pentium4           ;;
3619                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3620                     *-sse3)             echo -xarch=sse3                 ;;
3621                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3622                     bonnell)                   echo -xarch=ssse3         ;;
3623                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3624                     westmere)                  echo -xtarget=westmere    ;;
3625                     silvermont)                echo -xarch=sse4_2        ;;
3626                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3627                     core-avx*|ivybridge|haswell|broadwell)
3628                                                echo -xarch=avx           ;;
3629                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3630                     btver1)                    echo -xarch=amdsse4a      ;;
3631                     btver2|bdver*)             echo -xarch=avx           ;;
3632                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3633                     k8|opteron|athlon64|athlon-fx)
3634                                                echo -xarch=sse2a         ;;
3635                     athlon*)                   echo -xarch=pentium_proa  ;;
3636                 esac
3637                 ;;
3638             -std=c99)             echo -xc99              ;;
3639             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3640             -fPIC)                echo -KPIC -xcode=pic32 ;;
3641             -W*,*)                echo $flag              ;;
3642             -f*-*|-W*|-mimpure-text)                      ;;
3643             -shared)              echo -G                 ;;
3644             *)                    echo $flag              ;;
3645         esac
3646     done
3647 }
3648
3649 tms470_flags(){
3650     for flag; do
3651         case $flag in
3652             -march=*|-mcpu=*)
3653                 case "${flag#*=}" in
3654                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3655                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3656                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3657                     armv6*|arm11*)          echo -mv=6   ;;
3658                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3659                                             echo -mv=5e  ;;
3660                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3661                 esac
3662                 ;;
3663             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3664             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3665             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3666             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3667             -msoft-float)   echo --float_support=vfplib       ;;
3668             -O[0-3]|-mf=*)  echo $flag                        ;;
3669             -g)             echo -g -mn                       ;;
3670             -pds=*)         echo $flag                        ;;
3671             -D*|-I*)        echo $flag                        ;;
3672             --gcc|--abi=*)  echo $flag                        ;;
3673             -me)            echo $flag                        ;;
3674         esac
3675     done
3676 }
3677
3678 probe_cc(){
3679     pfx=$1
3680     _cc=$2
3681     first=$3
3682
3683     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3684     unset _ld_o _ldflags _ld_lib _ld_path
3685     unset _depflags _DEPCMD _DEPFLAGS
3686     _flags_filter=echo
3687
3688     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3689         true # no-op to avoid reading stdin in following checks
3690     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3691         _type=llvm_gcc
3692         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3693         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3694         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3695         _cflags_speed='-O3'
3696         _cflags_size='-Os'
3697     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3698         _type=gcc
3699         gcc_version=$($_cc --version | head -n1)
3700         gcc_basever=$($_cc -dumpversion)
3701         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3702         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3703         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3704         case $gcc_basever in
3705             2*) ;;
3706             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3707         esac
3708         if [ "$first" = true ]; then
3709             case $gcc_basever in
3710                 4.2*)
3711                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3712             esac
3713         fi
3714         _cflags_speed='-O3'
3715         _cflags_size='-Os'
3716     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3717         _type=icc
3718         _ident=$($_cc --version | head -n1)
3719         _depflags='-MMD'
3720         _cflags_speed='-O3'
3721         _cflags_size='-Os'
3722         _cflags_noopt='-O1'
3723         _flags_filter=icc_flags
3724     elif $_cc -v 2>&1 | grep -q xlc; then
3725         _type=xlc
3726         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3727         _cflags_speed='-O5'
3728         _cflags_size='-O5 -qcompact'
3729     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3730         _type=ccc
3731         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3732         _DEPFLAGS='-M'
3733         _cflags_speed='-fast'
3734         _cflags_size='-O1'
3735         _flags_filter=ccc_flags
3736     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3737         test -d "$sysroot" || die "No valid sysroot specified."
3738         _type=armcc
3739         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3740         armcc_conf="$PWD/armcc.conf"
3741         $_cc --arm_linux_configure                 \
3742              --arm_linux_config_file="$armcc_conf" \
3743              --configure_sysroot="$sysroot"        \
3744              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3745              die "Error creating armcc configuration file."
3746         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3747         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3748         as_default="${cross_prefix}gcc"
3749         _depflags='-MMD'
3750         _cflags_speed='-O3'
3751         _cflags_size='-Os'
3752     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3753         _type=tms470
3754         _ident=$($_cc -version | head -n1 | tr -s ' ')
3755         _flags='--gcc --abi=eabi -me'
3756         _cc_e='-ppl -fe=$@'
3757         _cc_o='-fe=$@'
3758         _depflags='-ppa -ppd=$(@:.o=.d)'
3759         _cflags_speed='-O3 -mf=5'
3760         _cflags_size='-O3 -mf=2'
3761         _flags_filter=tms470_flags
3762     elif $_cc -v 2>&1 | grep -q clang; then
3763         _type=clang
3764         _ident=$($_cc --version 2>/dev/null | head -n1)
3765         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3766         _cflags_speed='-O3'
3767         _cflags_size='-Os'
3768     elif $_cc -V 2>&1 | grep -q Sun; then
3769         _type=suncc
3770         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3771         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3772         _DEPFLAGS='-xM1 -xc99'
3773         _ldflags='-std=c99'
3774         _cflags_speed='-O5'
3775         _cflags_size='-O5 -xspace'
3776         _flags_filter=suncc_flags
3777     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3778         _type=pathscale
3779         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3780         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3781         _cflags_speed='-O2'
3782         _cflags_size='-Os'
3783         _flags_filter='filter_out -Wdisabled-optimization'
3784     elif $_cc -v 2>&1 | grep -q Open64; then
3785         _type=open64
3786         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3787         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3788         _cflags_speed='-O2'
3789         _cflags_size='-Os'
3790         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3791     elif $_cc -V 2>&1 | grep -q Portland; then
3792         _type=pgi
3793         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3794         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3795         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3796         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3797         _cflags_noopt="-O"
3798         _flags_filter=pgi_flags
3799     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3800         _type=armasm
3801         _ident=$($_cc | head -n1)
3802         # 4509: "This form of conditional instruction is deprecated"
3803         _flags="-nologo -ignore 4509"
3804         _flags_filter=armasm_flags
3805     elif $_cc 2>&1 | grep -q Intel; then
3806         _type=icl
3807         _ident=$($_cc 2>&1 | head -n1)
3808         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3809         # Not only is O3 broken on 13.x+ but it is slower on all previous
3810         # versions (tested) as well.
3811         _cflags_speed="-O2"
3812         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3813         if $_cc 2>&1 | grep -q Linker; then
3814             _ld_o='-out:$@'
3815         else
3816             _ld_o='-Fe$@'
3817         fi
3818         _cc_o='-Fo$@'
3819         _cc_e='-P'
3820         _flags_filter=icl_flags
3821         _ld_lib='lib%.a'
3822         _ld_path='-libpath:'
3823         # -Qdiag-error to make icl error when seeing certain unknown arguments
3824         _flags='-nologo -Qdiag-error:4044,10157'
3825         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3826         # with MSVC which enables it by default.
3827         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3828         disable stripping
3829     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3830         _type=msvc
3831         _ident=$($_cc 2>&1 | head -n1)
3832         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3833         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3834         _cflags_speed="-O2"
3835         _cflags_size="-O1"
3836         if $_cc -nologo- 2>&1 | grep -q Linker; then
3837             _ld_o='-out:$@'
3838         else
3839             _ld_o='-Fe$@'
3840         fi
3841         _cc_o='-Fo$@'
3842         _cc_e='-P -Fi$@'
3843         _flags_filter=msvc_flags
3844         _ld_lib='lib%.a'
3845         _ld_path='-libpath:'
3846         _flags='-nologo'
3847         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3848         disable stripping
3849     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3850         _type=cparser
3851         _ident=$($_cc --version | head -n1)
3852         _depflags='-MMD'
3853         _cflags_speed='-O4'
3854         _cflags_size='-O2'
3855         _flags_filter=cparser_flags
3856     fi
3857
3858     eval ${pfx}_type=\$_type
3859     eval ${pfx}_ident=\$_ident
3860 }
3861
3862 set_ccvars(){
3863     eval ${1}_C=\${_cc_c-\${${1}_C}}
3864     eval ${1}_E=\${_cc_e-\${${1}_E}}
3865     eval ${1}_O=\${_cc_o-\${${1}_O}}
3866
3867     if [ -n "$_depflags" ]; then
3868         eval ${1}_DEPFLAGS=\$_depflags
3869     else
3870         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3871         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3872         eval DEP${1}FLAGS=\$_flags
3873     fi
3874 }
3875
3876 probe_cc cc "$cc" "true"
3877 cflags_filter=$_flags_filter
3878 cflags_speed=$_cflags_speed
3879 cflags_size=$_cflags_size
3880 cflags_noopt=$_cflags_noopt
3881 add_cflags $_flags $_cflags
3882 cc_ldflags=$_ldflags
3883 set_ccvars CC
3884
3885 probe_cc hostcc "$host_cc"
3886 host_cflags_filter=$_flags_filter
3887 add_host_cflags  $_flags $_cflags
3888 set_ccvars HOSTCC
3889
3890 test -n "$cc_type" && enable $cc_type ||
3891     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3892
3893 : ${as_default:=$cc}
3894 : ${objcc_default:=$cc}
3895 : ${dep_cc_default:=$cc}
3896 : ${ld_default:=$cc}
3897 : ${host_ld_default:=$host_cc}
3898 set_default ar as objcc dep_cc ld host_ld windres
3899
3900 probe_cc as "$as"
3901 asflags_filter=$_flags_filter
3902 add_asflags $_flags $_cflags
3903 set_ccvars AS
3904
3905 probe_cc objcc "$objcc"
3906 objcflags_filter=$_flags_filter
3907 add_objcflags $_flags $_cflags
3908 set_ccvars OBJC
3909
3910 probe_cc ld "$ld"
3911 ldflags_filter=$_flags_filter
3912 add_ldflags $_flags $_ldflags
3913 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3914 LD_O=${_ld_o-$LD_O}
3915 LD_LIB=${_ld_lib-$LD_LIB}
3916 LD_PATH=${_ld_path-$LD_PATH}
3917
3918 probe_cc hostld "$host_ld"
3919 host_ldflags_filter=$_flags_filter
3920 add_host_ldflags $_flags $_ldflags
3921 HOSTLD_O=${_ld_o-$HOSTLD_O}
3922
3923 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3924     probe_cc depcc "$dep_cc"
3925     CCDEP=${_DEPCMD:-$DEPCMD}
3926     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3927     DEPCCFLAGS=$_flags
3928 fi
3929
3930 if $ar 2>&1 | grep -q Microsoft; then
3931     arflags="-nologo"
3932     ar_o='-out:$@'
3933 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3934     arflags="rq"
3935     ar_o='$@'
3936 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3937     arflags='-Xany -r -c'
3938     ar_o='$@'
3939 elif $ar 2>&1 | grep -q "\[D\] "; then
3940     arflags="rcD"
3941     ar_o='$@'
3942 else
3943     arflags="rc"
3944     ar_o='$@'
3945 fi
3946
3947 add_cflags $extra_cflags
3948 add_cxxflags $extra_cxxflags
3949 add_objcflags $extra_objcflags
3950 add_asflags $extra_cflags
3951
3952 if test -n "$sysroot"; then
3953     case "$cc_type" in
3954         gcc|llvm_gcc|clang)
3955             add_cppflags --sysroot="$sysroot"
3956             add_ldflags --sysroot="$sysroot"
3957 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3958             add_cppflags -isysroot "$sysroot"
3959             add_ldflags -isysroot "$sysroot"
3960         ;;
3961         tms470)
3962             add_cppflags -I"$sysinclude"
3963             add_ldflags  --sysroot="$sysroot"
3964         ;;
3965     esac
3966 fi
3967
3968 if test "$cpu" = host; then
3969     enabled cross_compile &&
3970         die "--cpu=host makes no sense when cross-compiling."
3971
3972     case "$cc_type" in
3973         gcc|llvm_gcc)
3974             check_native(){
3975                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3976                 sed -n "/cc1.*$1=/{
3977                             s/.*$1=\\([^ ]*\\).*/\\1/
3978                             p
3979                             q
3980                         }" $TMPE
3981             }
3982             cpu=$(check_native -march || check_native -mcpu)
3983         ;;
3984     esac
3985
3986     test "${cpu:-host}" = host &&
3987         die "--cpu=host not supported with compiler $cc"
3988 fi
3989
3990 # Deal with common $arch aliases
3991 case "$arch" in
3992     aarch64|arm64)
3993         arch="aarch64"
3994     ;;
3995     arm*|iPad*|iPhone*)
3996         arch="arm"
3997     ;;
3998     mips*|IP*)
3999         arch="mips"
4000     ;;
4001     parisc*|hppa*)
4002         arch="parisc"
4003     ;;
4004     "Power Macintosh"|ppc*|powerpc*)
4005         arch="ppc"
4006     ;;
4007     s390|s390x)
4008         arch="s390"
4009     ;;
4010     sh4|sh)
4011         arch="sh4"
4012     ;;
4013     sun4u|sparc*)
4014         arch="sparc"
4015     ;;
4016     tilegx|tile-gx)
4017         arch="tilegx"
4018     ;;
4019     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4020         arch="x86"
4021     ;;
4022 esac
4023
4024 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4025 enable $arch
4026
4027 # Add processor-specific flags
4028 if enabled aarch64; then
4029
4030     case $cpu in
4031         armv*)
4032             cpuflags="-march=$cpu"
4033         ;;
4034         *)
4035             cpuflags="-mcpu=$cpu"
4036         ;;
4037     esac
4038
4039 elif enabled alpha; then
4040
4041     cpuflags="-mcpu=$cpu"
4042
4043 elif enabled arm; then
4044
4045     check_arm_arch() {
4046         check_cpp_condition stddef.h \
4047             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4048             $cpuflags
4049     }
4050
4051     probe_arm_arch() {
4052         if   check_arm_arch 4;        then echo armv4;
4053         elif check_arm_arch 4T;       then echo armv4t;
4054         elif check_arm_arch 5;        then echo armv5;
4055         elif check_arm_arch 5E;       then echo armv5e;
4056         elif check_arm_arch 5T;       then echo armv5t;
4057         elif check_arm_arch 5TE;      then echo armv5te;
4058         elif check_arm_arch 5TEJ;     then echo armv5te;
4059         elif check_arm_arch 6;        then echo armv6;
4060         elif check_arm_arch 6J;       then echo armv6j;
4061         elif check_arm_arch 6K;       then echo armv6k;
4062         elif check_arm_arch 6Z;       then echo armv6z;
4063         elif check_arm_arch 6ZK;      then echo armv6zk;
4064         elif check_arm_arch 6T2;      then echo armv6t2;
4065         elif check_arm_arch 7;        then echo armv7;
4066         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4067         elif check_arm_arch 7S;       then echo armv7-a;
4068         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4069         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4070         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4071         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4072         fi
4073     }
4074
4075     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4076
4077     case $cpu in
4078         armv*)
4079             cpuflags="-march=$cpu"
4080             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4081         ;;
4082         *)
4083             cpuflags="-mcpu=$cpu"
4084             case $cpu in
4085                 cortex-a*)                               subarch=armv7a  ;;
4086                 cortex-r*)                               subarch=armv7r  ;;
4087                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4088                 arm11*)                                  subarch=armv6   ;;
4089                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4090                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4091                 *)                             subarch=$(probe_arm_arch) ;;
4092             esac
4093         ;;
4094     esac
4095
4096     case "$subarch" in
4097         armv5t*)    enable fast_clz                ;;
4098         armv[6-8]*)
4099             enable fast_clz
4100             disabled fast_unaligned || enable fast_unaligned
4101             ;;
4102     esac
4103
4104 elif enabled avr32; then
4105
4106     case $cpu in
4107         ap7[02]0[0-2])
4108             subarch="avr32_ap"
4109             cpuflags="-mpart=$cpu"
4110         ;;
4111         ap)
4112             subarch="avr32_ap"
4113             cpuflags="-march=$cpu"
4114         ;;
4115         uc3[ab]*)
4116             subarch="avr32_uc"
4117             cpuflags="-mcpu=$cpu"
4118         ;;
4119         uc)
4120             subarch="avr32_uc"
4121             cpuflags="-march=$cpu"
4122         ;;
4123     esac
4124
4125 elif enabled bfin; then
4126
4127     cpuflags="-mcpu=$cpu"
4128
4129 elif enabled mips; then
4130
4131     cpuflags="-march=$cpu"
4132
4133     case $cpu in
4134         24kc)
4135             disable mips64r2
4136             disable mips64r6
4137             disable mipsfpu
4138             disable mipsdsp
4139             disable mipsdspr2
4140             disable msa
4141         ;;
4142         24kf*)
4143             disable mips64r2
4144             disable mips64r6
4145             disable mipsdsp
4146             disable mipsdspr2
4147             disable msa
4148         ;;
4149         24kec|34kc|1004kc)
4150             disable mips64r2
4151             disable mips64r6
4152             disable mipsfpu
4153             disable mipsdspr2
4154             disable msa
4155         ;;
4156         24kef*|34kf*|1004kf*)
4157             disable mips64r2
4158             disable mips64r6
4159             disable mipsdspr2
4160             disable msa
4161         ;;
4162         74kc)
4163             disable mips64r2
4164             disable mips64r6
4165             disable mipsfpu
4166             disable msa
4167         ;;
4168         74kf)
4169             disable mips64r2
4170             disable mips64r6
4171             disable msa
4172         ;;
4173         p5600)
4174             disable mips64r2
4175             disable mips64r6
4176             disable mipsdsp
4177             disable mipsdspr2
4178             check_cflags "-mtune=p5600" &&
4179             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4180             add_asflags "-mfp64"
4181         ;;
4182         i6400)
4183             disable mips32r2
4184             disable mips64r2
4185             disable mipsdsp
4186             disable mipsdspr2
4187             check_cflags "-mtune=i6400 -mabi=64" &&
4188             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4189             check_ldflags "-mabi=64" &&
4190             add_asflags "-mfp64"
4191         ;;
4192         loongson*)
4193             disable mipsfpu
4194             disable mips32r2
4195             disable mips64r2
4196             disable mips64r6
4197             disable mipsdsp
4198             disable mipsdspr2
4199             disable msa
4200             enable local_aligned_8 local_aligned_16 local_aligned_32
4201             enable simd_align_16
4202             enable fast_64bit
4203             enable fast_clz
4204             enable fast_cmov
4205             enable fast_unaligned
4206             disable aligned_stack
4207             case $cpu in
4208                 loongson3*)
4209                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4210                 ;;
4211                 loongson2e)
4212                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4213                 ;;
4214                 loongson2f)
4215                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4216                 ;;
4217             esac
4218         ;;
4219         generic)
4220             disable mips64r6
4221             disable msa
4222         ;;
4223         *)
4224             disable mipsfpu
4225             disable mips32r2
4226             disable mips64r2
4227             disable mips64r6
4228             disable mipsdsp
4229             disable mipsdspr2
4230             disable msa
4231         ;;
4232     esac
4233
4234 elif enabled ppc; then
4235
4236     disable ldbrx
4237
4238     case $(tolower $cpu) in
4239         601|ppc601|powerpc601)
4240             cpuflags="-mcpu=601"
4241             disable altivec
4242         ;;
4243         603*|ppc603*|powerpc603*)
4244             cpuflags="-mcpu=603"
4245             disable altivec
4246         ;;
4247         604*|ppc604*|powerpc604*)
4248             cpuflags="-mcpu=604"
4249             disable altivec
4250         ;;
4251         g3|75*|ppc75*|powerpc75*)
4252             cpuflags="-mcpu=750"
4253             disable altivec
4254         ;;
4255         g4|745*|ppc745*|powerpc745*)
4256             cpuflags="-mcpu=7450"
4257             disable vsx
4258         ;;
4259         74*|ppc74*|powerpc74*)
4260             cpuflags="-mcpu=7400"
4261             disable vsx
4262         ;;
4263         g5|970|ppc970|powerpc970)
4264             cpuflags="-mcpu=970"
4265             disable vsx
4266         ;;
4267         power[3-6]*)
4268             cpuflags="-mcpu=$cpu"
4269             disable vsx
4270         ;;
4271         power[7-8]*)
4272             cpuflags="-mcpu=$cpu"
4273         ;;
4274         cell)
4275             cpuflags="-mcpu=cell"
4276             enable ldbrx
4277             disable vsx
4278         ;;
4279         e500mc)
4280             cpuflags="-mcpu=e500mc"
4281             disable altivec
4282         ;;
4283         e500v2)
4284             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4285             disable altivec
4286             disable dcbzl
4287         ;;
4288         e500)
4289             cpuflags="-mcpu=8540 -mhard-float"
4290             disable altivec
4291             disable dcbzl
4292         ;;
4293     esac
4294
4295 elif enabled sparc; then
4296
4297     case $cpu in
4298         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4299             cpuflags="-mcpu=$cpu"
4300         ;;
4301         ultrasparc*|niagara[234])
4302             cpuflags="-mcpu=$cpu"
4303         ;;
4304     esac
4305
4306 elif enabled x86; then
4307
4308     case $cpu in
4309         i[345]86|pentium)
4310             cpuflags="-march=$cpu"
4311             disable i686
4312             disable mmx
4313         ;;
4314         # targets that do NOT support nopl and conditional mov (cmov)
4315         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4316             cpuflags="-march=$cpu"
4317             disable i686
4318         ;;
4319         # targets that do support nopl and conditional mov (cmov)
4320         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4321         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4322             cpuflags="-march=$cpu"
4323             enable i686
4324             enable fast_cmov
4325         ;;
4326         # targets that do support conditional mov but on which it's slow
4327         pentium4|pentium4m|prescott|nocona)
4328             cpuflags="-march=$cpu"
4329             enable i686
4330             disable fast_cmov
4331         ;;
4332     esac
4333
4334 fi
4335
4336 if [ "$cpu" != generic ]; then
4337     add_cflags  $cpuflags
4338     add_asflags $cpuflags
4339     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4340 fi
4341
4342 # compiler sanity check
4343 check_exec <<EOF
4344 int main(void){ return 0; }
4345 EOF
4346 if test "$?" != 0; then
4347     echo "$cc is unable to create an executable file."
4348     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4349         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4350         echo "Only do this if you know what cross compiling means."
4351     fi
4352     die "C compiler test failed."
4353 fi
4354
4355 add_cppflags -D_ISOC99_SOURCE
4356 add_cxxflags -D__STDC_CONSTANT_MACROS
4357 check_cflags -std=c99
4358 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4359 #include <stdlib.h>
4360 EOF
4361 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4362 #include <stdlib.h>
4363 EOF
4364
4365 add_host_cppflags -D_ISOC99_SOURCE
4366 check_host_cflags -std=c99
4367 check_host_cflags -Wall
4368 check_host_cflags -O3
4369
4370 check_64bit(){
4371     arch32=$1
4372     arch64=$2
4373     expr=$3
4374     check_code cc "" "int test[2*($expr) - 1]" &&
4375         subarch=$arch64 || subarch=$arch32
4376 }
4377
4378 case "$arch" in
4379     aarch64|alpha|ia64)
4380         spic=$shared
4381     ;;
4382     mips)
4383         check_64bit mips mips64 '_MIPS_SIM > 1'
4384         spic=$shared
4385     ;;
4386     parisc)
4387         check_64bit parisc parisc64 'sizeof(void *) > 4'
4388         spic=$shared
4389     ;;
4390     ppc)
4391         check_64bit ppc ppc64 'sizeof(void *) > 4'
4392         spic=$shared
4393     ;;
4394     s390)
4395         check_64bit s390 s390x 'sizeof(void *) > 4'
4396         spic=$shared
4397     ;;
4398     sparc)
4399         check_64bit sparc sparc64 'sizeof(void *) > 4'
4400         spic=$shared
4401     ;;
4402     x86)
4403         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4404         # Treat x32 as x64 for now. Note it also needs spic=$shared
4405         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4406             subarch=x86_64
4407         if test "$subarch" = "x86_64"; then
4408             spic=$shared
4409         fi
4410     ;;
4411     ppc)
4412         check_cc <<EOF && subarch="ppc64"
4413         int test[(int)sizeof(char*) - 7];
4414 EOF
4415     ;;
4416 esac
4417
4418 enable $subarch
4419 enabled spic && enable_weak pic
4420
4421 # OS specific
4422 case $target_os in
4423     aix)
4424         SHFLAGS=-shared
4425         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4426         enabled shared && add_ldflags -Wl,-brtl
4427         ;;
4428     android)
4429         disable symver
4430         enable section_data_rel_ro
4431         SLIB_INSTALL_NAME='$(SLIBNAME)'
4432         SLIB_INSTALL_LINKS=
4433         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4434         ;;
4435     haiku)
4436         prefix_default="/boot/common"
4437         network_extralibs="-lnetwork"
4438         host_libs=
4439         ;;
4440     sunos)
4441         SHFLAGS='-shared -Wl,-h,$$(@F)'
4442         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4443         network_extralibs="-lsocket -lnsl"
4444         add_cppflags -D__EXTENSIONS__
4445         # When using suncc to build, the Solaris linker will mark
4446         # an executable with each instruction set encountered by
4447         # the Solaris assembler.  As our libraries contain their own
4448         # guards for processor-specific code, instead suppress
4449         # generation of the HWCAPS ELF section on Solaris x86 only.
4450         enabled_all suncc x86 &&
4451             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4452             add_ldflags -Wl,-M,mapfile
4453         nm_default='nm -P -g'
4454         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4455         ;;
4456     netbsd)
4457         disable symver
4458         oss_indev_extralibs="-lossaudio"
4459         oss_outdev_extralibs="-lossaudio"
4460         enabled gcc || check_ldflags -Wl,-zmuldefs
4461         ;;
4462     openbsd|bitrig)
4463         disable symver
4464         SHFLAGS='-shared'
4465         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4466         SLIB_INSTALL_LINKS=
4467         oss_indev_extralibs="-lossaudio"
4468         oss_outdev_extralibs="-lossaudio"
4469         ;;
4470     dragonfly)
4471         disable symver
4472         ;;
4473     freebsd)
4474         ;;
4475     bsd/os)
4476         add_extralibs -lpoll -lgnugetopt
4477         strip="strip -d"
4478         ;;
4479     darwin)
4480         enabled ppc && add_asflags -force_cpusubtype_ALL
4481         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4482         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4483         strip="${strip} -x"
4484         add_ldflags -Wl,-dynamic,-search_paths_first
4485         SLIBSUF=".dylib"
4486         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4487         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4488         objformat="macho"
4489         enabled x86_64 && objformat="macho64"
4490         enabled_any pic shared x86_64 ||
4491             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4492         ;;
4493     msys*)
4494         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4495         ;;
4496     mingw32*|mingw64*)
4497         if test $target_os = "mingw32ce"; then
4498             disable network
4499         else
4500             target_os=mingw32
4501         fi
4502         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4503         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4504         LIBTARGET=i386
4505         if enabled x86_64; then
4506             LIBTARGET="i386:x86-64"
4507         elif enabled arm; then
4508             LIBTARGET=arm-wince
4509         fi
4510         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4511         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4512         shlibdir_default="$bindir_default"
4513         SLIBPREF=""
4514         SLIBSUF=".dll"
4515         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4516         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4517         dlltool="${cross_prefix}dlltool"
4518         if check_cmd lib.exe -list; then
4519             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4520             if enabled x86_64; then
4521                 LIBTARGET=x64
4522             fi
4523         elif check_cmd $dlltool --version; then
4524             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4525         fi
4526         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4527         SLIB_INSTALL_LINKS=
4528         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4529         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4530         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4531         objformat="win32"
4532         ranlib=:
4533         enable dos_paths
4534         check_ldflags -Wl,--nxcompat,--dynamicbase
4535         # Lets work around some stupidity in binutils.
4536         # ld will strip relocations from executables even though we need them
4537         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4538         # however ld then forgets what the entry point should be (oops) so we
4539         # have to manually (re)set it.
4540         if enabled x86_32; then
4541             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4542         elif enabled x86_64; then
4543             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4544             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4545             # Set image base >4GB for extra entropy with HEASLR
4546             add_ldexeflags -Wl,--image-base,0x140000000
4547             append SHFLAGS -Wl,--image-base,0x180000000
4548         fi
4549         ;;
4550     win32|win64)
4551         disable symver
4552         if enabled shared; then
4553             # Link to the import library instead of the normal static library
4554             # for shared libs.
4555             LD_LIB='%.lib'
4556             # Cannot build both shared and static libs with MSVC or icl.
4557             disable static
4558         fi
4559         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4560         shlibdir_default="$bindir_default"
4561         SLIBPREF=""
4562         SLIBSUF=".dll"
4563         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4564         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4565         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4566         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4567         SLIB_INSTALL_LINKS=
4568         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4569         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4570         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4571         objformat="win32"
4572         ranlib=:
4573         enable dos_paths
4574         ;;
4575     cygwin*)
4576         target_os=cygwin
4577         shlibdir_default="$bindir_default"
4578         SLIBPREF="cyg"
4579         SLIBSUF=".dll"
4580         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4581         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4582         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4583         SLIB_INSTALL_LINKS=
4584         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4585         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4586         objformat="win32"
4587         enable dos_paths
4588         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4589         ;;
4590     *-dos|freedos|opendos)
4591         network_extralibs="-lsocket"
4592         objformat="coff"
4593         enable dos_paths
4594         add_cppflags -U__STRICT_ANSI__
4595         ;;
4596     linux)
4597         enable dv1394
4598         enable section_data_rel_ro
4599         ;;
4600     irix*)
4601         target_os=irix
4602         ranlib="echo ignoring ranlib"
4603         ;;
4604     os/2*)
4605         strip="lxlite -CS"
4606         ln_s="cp -f"
4607         objformat="aout"
4608         add_cppflags -D_GNU_SOURCE
4609         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4610         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4611         LIBSUF="_s.a"
4612         SLIBPREF=""
4613         SLIBSUF=".dll"
4614         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4615         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4616         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4617             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4618             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4619             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4620             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4621         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4622             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4623         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4624         enable dos_paths
4625         enable_weak os2threads
4626         ;;
4627     gnu/kfreebsd)
4628         add_cppflags -D_BSD_SOURCE
4629         ;;
4630     gnu)
4631         ;;
4632     qnx)
4633         add_cppflags -D_QNX_SOURCE
4634         network_extralibs="-lsocket"
4635         ;;
4636     symbian)
4637         SLIBSUF=".dll"
4638         enable dos_paths
4639         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4640         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4641         add_ldflags -Wl,--target1-abs,--no-undefined \
4642                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4643                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4644         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4645                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4646                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4647         ;;
4648     osf1)
4649         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4650         ;;
4651     minix)
4652         ;;
4653     plan9)
4654         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4655                      -D_REENTRANT_SOURCE        \
4656                      -D_RESEARCH_SOURCE         \
4657                      -DFD_SETSIZE=96            \
4658                      -DHAVE_SOCK_OPTS
4659         add_compat strtod.o strtod=avpriv_strtod
4660         network_extralibs='-lbsd'
4661         exeobjs=compat/plan9/main.o
4662         disable ffserver
4663         cp_f='cp'
4664         ;;
4665     none)
4666         ;;
4667     *)
4668         die "Unknown OS '$target_os'."
4669         ;;
4670 esac
4671
4672 # determine libc flavour
4673
4674 probe_libc(){
4675     pfx=$1
4676     pfx_no_=${pfx%_}
4677     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4678     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4679         eval ${pfx}libc_type=uclibc
4680         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4681     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4682         eval ${pfx}libc_type=glibc
4683         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4684     # MinGW headers can be installed on Cygwin, so check for newlib first.
4685     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4686         eval ${pfx}libc_type=newlib
4687         add_${pfx}cppflags -U__STRICT_ANSI__
4688     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4689     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4690         eval ${pfx}libc_type=mingw64
4691         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4692             add_compat msvcrt/snprintf.o
4693             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4694         fi
4695         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4696         eval test \$${pfx_no_}cc_type = "gcc" &&
4697             add_${pfx}cppflags -D__printf__=__gnu_printf__
4698     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4699          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4700         eval ${pfx}libc_type=mingw32
4701         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4702             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4703             die "ERROR: MinGW32 runtime version must be >= 3.15."
4704         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4705         eval test \$${pfx_no_}cc_type = "gcc" &&
4706             add_${pfx}cppflags -D__printf__=__gnu_printf__
4707     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4708         eval ${pfx}libc_type=msvcrt
4709         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4710             if [ "$pfx" = host_ ]; then
4711                 add_host_cppflags -Dsnprintf=_snprintf
4712             else
4713                 add_compat strtod.o strtod=avpriv_strtod
4714                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4715                                              _snprintf=avpriv_snprintf  \
4716                                              vsnprintf=avpriv_vsnprintf
4717             fi
4718         fi
4719         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4720         # 0x601 by default unless something else is set by the user.
4721         # This can easily lead to us detecting functions only present
4722         # in such new versions and producing binaries requiring windows 7.0.
4723         # Therefore explicitly set the default to XP unless the user has
4724         # set something else on the command line.
4725         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4726         # family. For these cases, configure is free to use any functions
4727         # found in the SDK headers by default. (Alternatively, we could force
4728         # _WIN32_WINNT to 0x0602 in that case.)
4729         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4730             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4731 #ifdef WINAPI_FAMILY
4732 #include <winapifamily.h>
4733 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4734 #error not desktop
4735 #endif
4736 #endif
4737 EOF
4738     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4739         eval ${pfx}libc_type=klibc
4740     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4741         eval ${pfx}libc_type=bionic
4742     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4743         eval ${pfx}libc_type=solaris
4744         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4745     fi
4746     check_${pfx}cc <<EOF
4747 #include <time.h>
4748 void *v = localtime_r;
4749 EOF
4750 test "$?" != 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
4751 #include <time.h>
4752 void *v = localtime_r;
4753 EOF
4754
4755 }
4756
4757 probe_libc
4758 test -n "$libc_type" && enable libc_$libc_type
4759 probe_libc host_
4760 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4761
4762 case $libc_type in
4763     bionic)
4764         add_compat strtod.o strtod=avpriv_strtod
4765         ;;
4766 esac
4767
4768 # hacks for compiler/libc/os combinations
4769
4770 if enabled_all tms470 libc_glibc; then
4771     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4772     add_cppflags -D__USER_LABEL_PREFIX__=
4773     add_cppflags -D__builtin_memset=memset
4774     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4775     add_cflags   -pds=48    # incompatible redefinition of macro
4776 fi
4777
4778 if enabled_all ccc libc_glibc; then
4779     add_ldflags -Wl,-z,now  # calls to libots crash without this
4780 fi
4781
4782 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4783     add_cppflags '-I\$(SRC_PATH)/compat/float'
4784
4785 esc(){
4786     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4787 }
4788
4789 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4790
4791 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4792
4793 set_default libdir
4794 : ${shlibdir_default:="$libdir"}
4795 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4796
4797 set_default $PATHS_LIST
4798 set_default nm
4799
4800 # we need to build at least one lib type
4801 if ! enabled_any static shared; then
4802     cat <<EOF
4803 At least one library type must be built.
4804 Specify --enable-static to build the static libraries or --enable-shared to
4805 build the shared libraries as well. To only build the shared libraries specify
4806 --disable-static in addition to --enable-shared.
4807 EOF
4808     exit 1;
4809 fi
4810
4811 die_license_disabled() {
4812     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4813 }
4814
4815 die_license_disabled_gpl() {
4816     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4817 }
4818
4819 die_license_disabled gpl frei0r
4820 die_license_disabled gpl libcdio
4821 die_license_disabled gpl librubberband
4822 die_license_disabled gpl libsmbclient
4823 die_license_disabled gpl libutvideo
4824 die_license_disabled gpl libvidstab
4825 die_license_disabled gpl libx264
4826 die_license_disabled gpl libx265
4827 die_license_disabled gpl libxavs
4828 die_license_disabled gpl libxvid
4829 die_license_disabled gpl libzvbi
4830 die_license_disabled gpl x11grab
4831
4832 die_license_disabled nonfree libaacplus
4833 die_license_disabled nonfree libfaac
4834 die_license_disabled nonfree nvenc
4835 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4836 enabled gpl && die_license_disabled_gpl nonfree openssl
4837
4838 die_license_disabled version3 gmp
4839 die_license_disabled version3 libopencore_amrnb
4840 die_license_disabled version3 libopencore_amrwb
4841 die_license_disabled version3 libsmbclient
4842 die_license_disabled version3 libvo_aacenc
4843 die_license_disabled version3 libvo_amrwbenc
4844
4845 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4846
4847 disabled optimizations || check_cflags -fomit-frame-pointer
4848
4849 enable_weak_pic() {
4850     disabled pic && return
4851     enable pic
4852     add_cppflags -DPIC
4853     case "$target_os" in
4854     mingw*|cygwin*)
4855         ;;
4856     *)
4857         add_cflags -fPIC
4858         ;;
4859     esac
4860     add_asflags  -fPIC
4861 }
4862
4863 enabled pic && enable_weak_pic
4864
4865 check_cc <<EOF || die "Symbol mangling check failed."
4866 int ff_extern;
4867 EOF
4868 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4869 extern_prefix=${sym%%ff_extern*}
4870
4871 check_cc <<EOF && enable_weak inline_asm
4872 void foo(void) { __asm__ volatile ("" ::); }
4873 EOF
4874
4875 _restrict=
4876 for restrict_keyword in restrict __restrict__ __restrict; do
4877     check_cc <<EOF && _restrict=$restrict_keyword && break
4878 void foo(char * $restrict_keyword p);
4879 EOF
4880 done
4881
4882 check_cc <<EOF && enable pragma_deprecated
4883 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4884 EOF
4885
4886 check_cc <<EOF && enable attribute_packed
4887 struct { int x; } __attribute__((packed)) x;
4888 EOF
4889
4890 check_cc <<EOF && enable attribute_may_alias
4891 union { int x; } __attribute__((may_alias)) x;
4892 EOF
4893
4894 check_cc <<EOF || die "endian test failed"
4895 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4896 EOF
4897 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4898
4899 if ! enabled ppc64 || enabled bigendian; then
4900     disable vsx
4901 fi
4902
4903 check_gas() {
4904     log "check_gas using '$as' as AS"
4905     # :vararg is used on aarch64, arm and ppc altivec
4906     check_as <<EOF || return 1
4907 .macro m n, y:vararg=0
4908 \n: .int \y
4909 .endm
4910 m x
4911 EOF
4912     # .altmacro is only used in arm asm
4913     ! enabled arm || check_as <<EOF || return 1
4914 .altmacro
4915 EOF
4916     enable gnu_as
4917     return 0
4918 }
4919
4920 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4921     nogas=:
4922     enabled_any arm aarch64 && nogas=die
4923     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4924     as_noop=-v
4925
4926     case $as_type in
4927         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4928         gcc)  gaspp_as_type=gas ;;
4929         *)    gaspp_as_type=$as_type ;;
4930     esac
4931
4932     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4933
4934     test "${as#*gas-preprocessor.pl}" != "$as" ||
4935     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4936         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4937
4938     if ! check_gas ; then
4939         as=${gas:=$as}
4940         check_gas || \
4941             $nogas "GNU assembler not found, install/update gas-preprocessor"
4942     fi
4943
4944     check_as <<EOF && enable as_func
4945 .func test
4946 .endfunc
4947 EOF
4948 fi
4949
4950 check_inline_asm inline_asm_labels '"1:\n"'
4951
4952 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4953
4954 if enabled aarch64; then
4955     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4956     # internal assembler in clang 3.3 does not support this instruction
4957     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4958     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4959
4960     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4961
4962 elif enabled alpha; then
4963
4964     check_cflags -mieee
4965
4966 elif enabled arm; then
4967
4968     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4969
4970     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4971 float func(float a, float b){ return a+b; }
4972 EOF
4973
4974     enabled thumb && check_cflags -mthumb || check_cflags -marm
4975
4976     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4977         enable vfp_args
4978     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4979         enable vfp_args
4980     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4981         case "${cross_prefix:-$cc}" in
4982             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4983             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4984 __asm__ (".eabi_attribute 28, 1");
4985 int main(void) { return 0; }
4986 EOF
4987         esac
4988         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4989     fi
4990
4991     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4992     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4993     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4994     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4995     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4996     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4997     enabled setend  && check_insn setend  'setend be'
4998
4999     [ $target_os = linux ] || [ $target_os = android ] ||
5000         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5001             $ARCH_EXT_LIST_ARM
5002
5003     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5004
5005     check_as <<EOF && enable as_dn_directive
5006 ra .dn d0.i16
5007 .unreq ra
5008 EOF
5009
5010     # llvm's integrated assembler supports .object_arch from llvm 3.5
5011     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5012 .object_arch armv4
5013 EOF
5014
5015     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5016
5017 elif enabled mips; then
5018
5019     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5020     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5021     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5022
5023     # Enable minimum ISA based on selected options
5024     if enabled mips64 && (enabled mipsdsp || enabled mipsdspr2); then
5025         add_cflags "-mips64r2"
5026         add_asflags "-mips64r2"
5027     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
5028         add_cflags "-mips64"
5029         add_asflags "-mips64"
5030     elif enabled mipsdsp || enabled mipsdspr2; then
5031         add_cflags "-mips32r2 -mfp32"
5032         add_asflags "-mips32r2 -mfp32"
5033     fi
5034
5035     enabled mipsdsp && add_cflags "-mdsp" && add_asflags "-mdsp" &&
5036      check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"'
5037     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
5038      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
5039     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
5040      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
5041     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
5042      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
5043
5044     enabled msa && add_asflags "-mmsa"
5045
5046 elif enabled parisc; then
5047
5048     if enabled gcc; then
5049         case $($cc -dumpversion) in
5050             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5051         esac
5052     fi
5053
5054 elif enabled ppc; then
5055
5056     enable local_aligned_8 local_aligned_16 local_aligned_32
5057
5058     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5059     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5060     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5061     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5062
5063     # AltiVec flags: The FSF version of GCC differs from the Apple version
5064     if enabled altivec; then
5065         check_cflags -maltivec -mabi=altivec &&
5066         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5067         check_cflags -faltivec
5068
5069         # check if our compiler supports Motorola AltiVec C API
5070         check_cc <<EOF || disable altivec
5071 $inc_altivec_h
5072 int main(void) {
5073     vector signed int v1 = (vector signed int) { 0 };
5074     vector signed int v2 = (vector signed int) { 1 };
5075     v1 = vec_add(v1, v2);
5076     return 0;
5077 }
5078 EOF
5079
5080         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5081     fi
5082
5083     if enabled vsx; then
5084         check_cflags -mvsx &&
5085         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5086     fi
5087
5088     if enabled power8; then
5089         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5090     fi
5091
5092 elif enabled x86; then
5093
5094     check_builtin rdtsc    intrin.h   "__rdtsc()"
5095     check_builtin mm_empty mmintrin.h "_mm_empty()"
5096
5097     enable local_aligned_8 local_aligned_16 local_aligned_32
5098
5099     # check whether EBP is available on x86
5100     # As 'i' is stored on the stack, this program will crash
5101     # if the base pointer is used to access it because the
5102     # base pointer is cleared in the inline assembly code.
5103     check_exec_crash <<EOF && enable ebp_available
5104 volatile int i=0;
5105 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5106 return i;
5107 EOF
5108
5109     # check whether EBX is available on x86
5110     check_inline_asm ebx_available '""::"b"(0)' &&
5111         check_inline_asm ebx_available '"":::"%ebx"'
5112
5113     # check whether xmm clobbers are supported
5114     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5115
5116     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5117         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5118
5119     # check whether binutils is new enough to compile SSSE3/MMXEXT
5120     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5121     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5122
5123     if ! disabled_any asm mmx yasm; then
5124         if check_cmd $yasmexe --version; then
5125             enabled x86_64 && yasm_extra="-m amd64"
5126             yasm_debug="-g dwarf2"
5127         elif check_cmd nasm -v; then
5128             yasmexe=nasm
5129             yasm_debug="-g -F dwarf"
5130             if enabled x86_64; then
5131                 case "$objformat" in
5132                     elf)   objformat=elf64 ;;
5133                     win32) objformat=win64 ;;
5134                 esac
5135             fi
5136         fi
5137
5138         YASMFLAGS="-f $objformat $yasm_extra"
5139         enabled pic               && append YASMFLAGS "-DPIC"
5140         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5141         case "$objformat" in
5142             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5143         esac
5144
5145         check_yasm "movbe ecx, [5]" && enable yasm ||
5146             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5147         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5148         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5149         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5150         check_yasm "CPU amdnop" || disable cpunop
5151     fi
5152
5153     case "$cpu" in
5154         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5155             disable fast_clz
5156         ;;
5157     esac
5158
5159 fi
5160
5161 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5162
5163 check_ldflags -Wl,--as-needed
5164 check_ldflags -Wl,-z,noexecstack
5165
5166 if check_func dlopen; then
5167     ldl=
5168 elif check_func dlopen -ldl; then
5169     ldl=-ldl
5170 fi
5171
5172 frei0r_filter_extralibs='$ldl'
5173 frei0r_src_filter_extralibs='$ldl'
5174 ladspa_filter_extralibs='$ldl'
5175 nvenc_encoder_extralibs='$ldl'
5176
5177 if ! disabled network; then
5178     check_func getaddrinfo $network_extralibs
5179     check_func inet_aton $network_extralibs
5180
5181     check_type netdb.h "struct addrinfo"
5182     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5183     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5184     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5185     check_type poll.h "struct pollfd"
5186     check_type netinet/sctp.h "struct sctp_event_subscribe"
5187     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5188     check_type netinet/in.h "struct sockaddr_in6"
5189     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5190     check_type "sys/types.h sys/socket.h" socklen_t
5191
5192     # Prefer arpa/inet.h over winsock2
5193     if check_header arpa/inet.h ; then
5194         check_func closesocket
5195     elif check_header winsock2.h ; then
5196         check_func_headers winsock2.h closesocket -lws2 &&
5197             network_extralibs="-lws2" ||
5198         { check_func_headers winsock2.h closesocket -lws2_32 &&
5199             network_extralibs="-lws2_32"; } || disable winsock2_h network
5200         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5201
5202         check_type ws2tcpip.h socklen_t
5203         check_type ws2tcpip.h "struct addrinfo"
5204         check_type ws2tcpip.h "struct group_source_req"
5205         check_type ws2tcpip.h "struct ip_mreq_source"
5206         check_type ws2tcpip.h "struct ipv6_mreq"
5207         check_type winsock2.h "struct pollfd"
5208         check_struct winsock2.h "struct sockaddr" sa_len
5209         check_type ws2tcpip.h "struct sockaddr_in6"
5210         check_type ws2tcpip.h "struct sockaddr_storage"
5211     else
5212         disable network
5213     fi
5214 fi
5215
5216 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5217 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5218 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5219 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5220 check_builtin sarestart signal.h "SA_RESTART"
5221 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5222 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5223 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5224
5225 case "$custom_allocator" in
5226     jemalloc)
5227         # jemalloc by default does not use a prefix
5228         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5229     ;;
5230     tcmalloc)
5231         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5232         malloc_prefix=tc_
5233     ;;
5234 esac
5235
5236 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5237 check_func  ${malloc_prefix}memalign            && enable memalign
5238 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5239
5240 check_func  access
5241 check_func  arc4random
5242 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5243 check_func  fcntl
5244 check_func  fork
5245 check_func  gethrtime
5246 check_func  getopt
5247 check_func  getrusage
5248 check_func  gettimeofday
5249 check_func  isatty
5250 check_func  mach_absolute_time
5251 check_func  mkstemp
5252 check_func  mmap
5253 check_func  mprotect
5254 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5255 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5256 check_func  sched_getaffinity
5257 check_func  setrlimit
5258 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5259 check_func  strerror_r
5260 check_func  sysconf
5261 check_func  sysctl
5262 check_func  usleep
5263
5264 check_func_headers conio.h kbhit
5265 check_func_headers io.h setmode
5266 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5267 check_func_headers stdlib.h getenv
5268 check_func_headers sys/stat.h lstat
5269
5270 check_func_headers windows.h CoTaskMemFree -lole32
5271 check_func_headers windows.h GetProcessAffinityMask
5272 check_func_headers windows.h GetProcessTimes
5273 check_func_headers windows.h GetSystemTimeAsFileTime
5274 check_func_headers windows.h MapViewOfFile
5275 check_func_headers windows.h PeekNamedPipe
5276 check_func_headers windows.h SetConsoleTextAttribute
5277 check_func_headers windows.h SetConsoleCtrlHandler
5278 check_func_headers windows.h Sleep
5279 check_func_headers windows.h VirtualAlloc
5280 check_struct windows.h "CONDITION_VARIABLE" Ptr
5281 check_func_headers glob.h glob
5282 enabled xlib &&
5283     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5284
5285 check_header direct.h
5286 check_header dirent.h
5287 check_header dlfcn.h
5288 check_header d3d11.h
5289 check_header dxva.h
5290 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5291 check_header io.h
5292 check_header libcrystalhd/libcrystalhd_if.h
5293 check_header mach/mach_time.h
5294 check_header malloc.h
5295 check_header net/udplite.h
5296 check_header poll.h
5297 check_header sys/mman.h
5298 check_header sys/param.h
5299 check_header sys/resource.h
5300 check_header sys/select.h
5301 check_header sys/time.h
5302 check_header sys/un.h
5303 check_header termios.h
5304 check_header unistd.h
5305 check_header valgrind/valgrind.h
5306 check_header vdpau/vdpau.h
5307 check_header vdpau/vdpau_x11.h
5308 check_header VideoDecodeAcceleration/VDADecoder.h
5309 check_header VideoToolbox/VideoToolbox.h
5310 check_header windows.h
5311 check_header X11/extensions/XvMClib.h
5312 check_header asm/types.h
5313
5314 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5315 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5316 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5317 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5318
5319 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5320
5321 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5322 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5323 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5324 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5325 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5326
5327 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5328 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5329
5330 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5331
5332 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5333
5334 if ! disabled w32threads && ! enabled pthreads; then
5335     check_func_headers "windows.h process.h" _beginthreadex &&
5336         enable w32threads || disable w32threads
5337     if ! enabled w32threads && enabled winrt; then
5338         check_func_headers "windows.h" CreateThread &&
5339             enable w32threads || disable w32threads
5340     fi
5341 fi
5342
5343 # check for some common methods of building with pthread support
5344 # do this before the optional library checks as some of them require pthreads
5345 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5346     enable pthreads
5347     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5348         add_cflags -pthread
5349         add_extralibs -pthread
5350     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5351         add_cflags -pthreads
5352         add_extralibs -pthreads
5353     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5354         add_cflags -ldl -pthread
5355         add_extralibs -ldl -pthread
5356     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5357         add_extralibs -lpthreadGC2
5358     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5359         :
5360     elif ! check_func pthread_join && ! check_func pthread_create; then
5361         disable pthreads
5362     fi
5363     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5364 fi
5365
5366
5367 if enabled pthreads; then
5368   check_func pthread_cancel
5369 fi
5370
5371 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5372 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5373 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5374
5375 check_lib math.h sin -lm && LIBM="-lm"
5376 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5377
5378 atan2f_args=2
5379 copysign_args=2
5380 hypot_args=2
5381 ldexpf_args=2
5382 powf_args=2
5383
5384 for func in $MATH_FUNCS; do
5385     eval check_mathfunc $func \${${func}_args:-1}
5386 done
5387
5388 for func in $COMPLEX_FUNCS; do
5389     eval check_complexfunc $func \${${func}_args:-1}
5390 done
5391
5392 # these are off by default, so fail if requested and not available
5393 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5394 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5395                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5396 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5397                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5398                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5399 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5400 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5401 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5402 enabled gcrypt            && require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5403 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5404 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5405 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5406 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5407 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5408 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5409 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5410 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5411 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5412                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5413                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5414 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5415 enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create
5416 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5417 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5418                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5419                                  warn "using libfdk without pkg-config"; } }
5420 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"
5421 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5422 enabled fontconfig        && enable libfontconfig
5423 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5424 enabled libfreetype       && require_libfreetype
5425 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5426 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5427 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5428                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5429                                done || die "ERROR: libgsm not found"; }
5430 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5431 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
5432 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5433 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5434 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5435 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5436 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5437 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5438 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5439 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5440 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5441                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5442                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5443                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5444                                die "ERROR: libopenjpeg not found"; }
5445 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5446 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5447 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5448 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5449 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5450 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5451 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5452 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5453                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5454 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5455 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5456 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5457 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5458 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5459     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5460     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5461 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5462 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5463 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5464                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5465                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5466 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5467 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5468 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5469 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5470 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5471 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5472
5473 enabled libvpx            && {
5474     enabled libvpx_vp8_decoder && {
5475         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5476             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5477                 die "ERROR: libvpx decoder version must be >=0.9.1";
5478     }
5479     enabled libvpx_vp8_encoder && {
5480         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5481             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5482                 die "ERROR: libvpx encoder version must be >=0.9.7";
5483     }
5484     enabled libvpx_vp9_decoder && {
5485         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5486             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5487                 disable libvpx_vp9_decoder;
5488     }
5489     enabled libvpx_vp9_encoder && {
5490         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5491             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5492                 disable libvpx_vp9_encoder;
5493     }
5494     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5495         die "libvpx enabled but no supported decoders found"
5496     fi
5497 }
5498
5499 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5500 enabled libwebp           && {
5501     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5502     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5503 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5504                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5505                                  warn "using libx264 without pkg-config"; } } &&
5506                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5507                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5508                              { check_cpp_condition x264.h "X264_MPEG2" &&
5509                                enable libx262; }
5510 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5511                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5512                                die "ERROR: libx265 version must be >= 57."; }
5513 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5514 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5515 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5516 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5517 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5518 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5519                                 { ! enabled cross_compile && {
5520                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5521                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5522                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5523                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5524                                die "ERROR: mmal not found"; }
5525 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5526 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5527                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5528                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5529                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5530 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5531                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5532                                die "ERROR: openal not found"; } &&
5533                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5534                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5535 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5536                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5537                                die "ERROR: opencl not found"; } &&
5538                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5539                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5540                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5541 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5542                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5543                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5544                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5545                                die "ERROR: opengl not found."
5546                              }
5547 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5548                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5549                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5550                                die "ERROR: openssl not found"; }
5551 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5552
5553 # libdc1394 check
5554 if enabled libdc1394; then
5555     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5556         enable libdc1394_2; } ||
5557     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5558         enable libdc1394_1; } ||
5559     die "ERROR: No version of libdc1394 found "
5560 fi
5561 if ! disabled sdl; then
5562     SDL_CONFIG="${cross_prefix}sdl-config"
5563     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5564         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5565         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5566         enable sdl
5567     else
5568         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5569             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5570             sdl_libs=$("${SDL_CONFIG}" --libs)
5571             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5572             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5573             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5574             enable sdl
5575         elif enabled sdl ; then
5576             die "ERROR: SDL not found"
5577         else
5578             disable sdl
5579         fi
5580     fi
5581     if test $target_os = "mingw32"; then
5582         sdl_libs="$sdl_libs -mconsole"
5583     fi
5584 fi
5585 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5586
5587 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5588     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5589     enable securetransport; }
5590
5591 disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&
5592                        enable schannel && add_extralibs -lSecur32; }
5593
5594 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5595 enabled makeinfo \
5596     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5597     && enable makeinfo_html || disable makeinfo_html
5598 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5599 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5600 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5601 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5602
5603 check_header linux/fb.h
5604 check_header linux/videodev.h
5605 check_header linux/videodev2.h
5606 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5607
5608 check_header sys/videoio.h
5609 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5610
5611 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5612 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5613 # w32api 3.12 had it defined wrong
5614 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5615
5616 check_type "dshow.h" IBaseFilter
5617
5618 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5619 { check_header dev/bktr/ioctl_meteor.h &&
5620   check_header dev/bktr/ioctl_bt848.h; } ||
5621 { check_header machine/ioctl_meteor.h &&
5622   check_header machine/ioctl_bt848.h; } ||
5623 { check_header dev/video/meteor/ioctl_meteor.h &&
5624   check_header dev/video/bktr/ioctl_bt848.h; } ||
5625 check_header dev/ic/bt8xx.h
5626
5627 check_header sndio.h
5628 if check_struct sys/soundcard.h audio_buf_info bytes; then
5629     enable_safe sys/soundcard.h
5630 else
5631     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5632     #include <sys/soundcard.h>
5633     audio_buf_info abc;
5634 EOF
5635 fi
5636 check_header soundcard.h
5637
5638 enabled_any alsa_indev alsa_outdev &&
5639     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5640
5641 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5642     check_func jack_port_get_latency_range -ljack
5643
5644 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5645
5646 if enabled libcdio; then
5647     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5648     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5649     die "ERROR: No usable libcdio/cdparanoia found"
5650 fi
5651
5652 enabled xlib &&
5653     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5654
5655 if ! disabled libxcb; then
5656     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5657         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5658     } && disable x11grab && enable libxcb
5659
5660 if enabled libxcb; then
5661     disabled libxcb_shm || {
5662         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5663             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5664         } && check_header sys/shm.h && enable libxcb_shm; }
5665
5666     disabled libxcb_xfixes || {
5667         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5668             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5669         } && enable libxcb_xfixes; }
5670
5671     disabled libxcb_shape || {
5672         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5673             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5674         } && enable libxcb_shape; }
5675
5676     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5677     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5678 fi
5679 fi
5680
5681 if enabled x11grab; then
5682     enabled xlib || die "ERROR: Xlib not found"
5683     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5684     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5685 fi
5686
5687 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5688
5689 enabled dxva2api_h &&
5690     check_cc <<EOF && enable dxva2api_cobj
5691 #define _WIN32_WINNT 0x0600
5692 #define COBJMACROS
5693 #include <windows.h>
5694 #include <d3d9.h>
5695 #include <dxva2api.h>
5696 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5697 EOF
5698
5699 enabled vaapi &&
5700     check_lib va/va.h vaInitialize -lva ||
5701     disable vaapi
5702
5703 enabled vaapi && enabled xlib &&
5704     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5705     enable vaapi_x11
5706
5707 enabled vdpau &&
5708     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5709     disable vdpau
5710
5711 enabled vdpau && enabled xlib &&
5712     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5713     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5714     enable vdpau_x11
5715
5716 # Funny iconv installations are not unusual, so check it after all flags have been set
5717 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5718
5719 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5720
5721 # add some useful compiler flags if supported
5722 check_cflags -Wdeclaration-after-statement
5723 check_cflags -Wall
5724 check_cflags -Wdisabled-optimization
5725 check_cflags -Wpointer-arith
5726 check_cflags -Wredundant-decls
5727 check_cflags -Wwrite-strings
5728 check_cflags -Wtype-limits
5729 check_cflags -Wundef
5730 check_cflags -Wmissing-prototypes
5731 check_cflags -Wno-pointer-to-int-cast
5732 check_cflags -Wstrict-prototypes
5733 check_cflags -Wempty-body
5734 enabled extra_warnings && check_cflags -Winline
5735 enabled extra_warnings && check_cflags -Wcast-qual
5736
5737 check_disable_warning(){
5738     warning_flag=-W${1#-Wno-}
5739     test_cflags $warning_flag && add_cflags $1
5740 }
5741
5742 check_disable_warning -Wno-parentheses
5743 check_disable_warning -Wno-switch
5744 check_disable_warning -Wno-format-zero-length
5745 check_disable_warning -Wno-pointer-sign
5746
5747 # add some linker flags
5748 check_ldflags -Wl,--warn-common
5749 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5750 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5751 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5752 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5753
5754 # add some strip flags
5755 # -wN '..@*' is more selective than -x, but not available everywhere.
5756 check_stripflags -wN \'..@*\' || check_stripflags -x
5757
5758 enabled neon_clobber_test &&
5759     check_ldflags -Wl,--wrap,avcodec_open2              \
5760                   -Wl,--wrap,avcodec_decode_audio4      \
5761                   -Wl,--wrap,avcodec_decode_video2      \
5762                   -Wl,--wrap,avcodec_decode_subtitle2   \
5763                   -Wl,--wrap,avcodec_encode_audio2      \
5764                   -Wl,--wrap,avcodec_encode_video2      \
5765                   -Wl,--wrap,avcodec_encode_subtitle    \
5766                   -Wl,--wrap,swr_convert                \
5767                   -Wl,--wrap,avresample_convert ||
5768     disable neon_clobber_test
5769
5770 enabled xmm_clobber_test &&
5771     check_ldflags -Wl,--wrap,avcodec_open2              \
5772                   -Wl,--wrap,avcodec_decode_audio4      \
5773                   -Wl,--wrap,avcodec_decode_video2      \
5774                   -Wl,--wrap,avcodec_decode_subtitle2   \
5775                   -Wl,--wrap,avcodec_encode_audio2      \
5776                   -Wl,--wrap,avcodec_encode_video2      \
5777                   -Wl,--wrap,avcodec_encode_subtitle    \
5778                   -Wl,--wrap,swr_convert                \
5779                   -Wl,--wrap,avresample_convert         \
5780                   -Wl,--wrap,sws_scale ||
5781     disable xmm_clobber_test
5782
5783 echo "X { local: *; };" > $TMPV
5784 if test_ldflags -Wl,--version-script,$TMPV; then
5785     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5786 elif test_ldflags -Wl,-M,$TMPV; then
5787     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5788 fi
5789
5790 check_cc <<EOF && enable symver_asm_label
5791 void ff_foo(void) __asm__ ("av_foo@VERSION");
5792 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5793 EOF
5794     check_cc <<EOF && enable symver_gnu_asm
5795 __asm__(".symver ff_foo,av_foo@VERSION");
5796 void ff_foo(void) {}
5797 EOF
5798
5799 if [ -z "$optflags" ]; then
5800     if enabled small; then
5801         optflags=$cflags_size
5802     elif enabled optimizations; then
5803         optflags=$cflags_speed
5804     else
5805         optflags=$cflags_noopt
5806     fi
5807 fi
5808
5809 check_optflags(){
5810     check_cflags "$@"
5811     enabled lto && check_ldflags "$@"
5812 }
5813
5814
5815 if enabled lto; then
5816     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5817     check_cflags  -flto
5818     check_ldflags -flto $cpuflags
5819     disable inline_asm_direct_symbol_refs
5820 fi
5821
5822 check_optflags $optflags
5823 check_optflags -fno-math-errno
5824 check_optflags -fno-signed-zeros
5825
5826 enabled ftrapv && check_cflags -ftrapv
5827
5828 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5829 int x;
5830 EOF
5831
5832
5833 if enabled icc; then
5834     # Just warnings, no remarks
5835     check_cflags -w1
5836     # -wd: Disable following warnings
5837     # 144, 167, 556: -Wno-pointer-sign
5838     # 188: enumerated type mixed with another type
5839     # 1292: attribute "foo" ignored
5840     # 1419: external declaration in primary source file
5841     # 10006: ignoring unknown option -fno-signed-zeros
5842     # 10148: ignoring unknown option -Wno-parentheses
5843     # 10156: ignoring option '-W'; no argument required
5844     # 13200: No EMMS instruction before call to function
5845     # 13203: No EMMS instruction before return from function
5846     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5847     # 11030: Warning unknown option --as-needed
5848     # 10156: ignoring option '-export'; no argument required
5849     check_ldflags -wd10156,11030
5850     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5851     enable ebp_available
5852     # The test above does not test linking
5853     enabled lto && disable symver_asm_label
5854     if enabled x86_32; then
5855         icc_version=$($cc -dumpversion)
5856         test ${icc_version%%.*} -ge 11 &&
5857             check_cflags -falign-stack=maintain-16-byte ||
5858             disable aligned_stack
5859     fi
5860 elif enabled ccc; then
5861     # disable some annoying warnings
5862     add_cflags -msg_disable bitnotint
5863     add_cflags -msg_disable mixfuncvoid
5864     add_cflags -msg_disable nonstandcast
5865     add_cflags -msg_disable unsupieee
5866 elif enabled gcc; then
5867     check_optflags -fno-tree-vectorize
5868     check_cflags -Werror=format-security
5869     check_cflags -Werror=implicit-function-declaration
5870     check_cflags -Werror=missing-prototypes
5871     check_cflags -Werror=return-type
5872     check_cflags -Werror=vla
5873     check_cflags -Wformat
5874     check_cflags -fdiagnostics-color=auto
5875     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5876 elif enabled llvm_gcc; then
5877     check_cflags -mllvm -stack-alignment=16
5878 elif enabled clang; then
5879     check_cflags -mllvm -stack-alignment=16
5880     check_cflags -Qunused-arguments
5881     check_cflags -Werror=implicit-function-declaration
5882     check_cflags -Werror=missing-prototypes
5883     check_cflags -Werror=return-type
5884 elif enabled cparser; then
5885     add_cflags -Wno-missing-variable-declarations
5886     add_cflags -Wno-empty-statement
5887 elif enabled armcc; then
5888     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5889     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5890     # 2523: use of inline assembly is deprecated
5891     add_cflags -W${armcc_opt},--diag_suppress=2523
5892     add_cflags -W${armcc_opt},--diag_suppress=1207
5893     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5894     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5895     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5896     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5897 elif enabled tms470; then
5898     add_cflags -pds=824 -pds=837
5899     disable inline_asm
5900 elif enabled pathscale; then
5901     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5902 elif enabled_any msvc icl; then
5903     enabled x86_32 && disable aligned_stack
5904     enabled_all x86_32 debug && add_cflags -Oy-
5905     enabled debug && add_ldflags -debug
5906     enable pragma_deprecated
5907     if enabled icl; then
5908         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5909         # (correctly) on icl 13.x.
5910         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5911             add_cflags -Qansi-alias
5912         # Some inline asm is not compilable in debug
5913         if enabled debug; then
5914             disable ebp_available
5915             disable ebx_available
5916         fi
5917     fi
5918     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5919     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5920     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5921     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5922     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5923     # MSVC 2013 and newer can handle it fine.
5924     # If this declspec fails, force including stdlib.h before the restrict redefinition
5925     # happens in config.h.
5926     if [ $_restrict != restrict ]; then
5927         check_cc <<EOF || add_cflags -FIstdlib.h
5928 __declspec($_restrict) void* foo(int);
5929 EOF
5930     fi
5931     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5932 fi
5933
5934 for pfx in "" host_; do
5935     varname=${pfx%_}cc_type
5936     eval "type=\$$varname"
5937     if [ $type = "msvc" ]; then
5938         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5939 static inline int foo(int a) { return a; }
5940 EOF
5941     fi
5942 done
5943
5944 case $as_type in
5945     clang)
5946         add_asflags -Qunused-arguments
5947     ;;
5948 esac
5949
5950 case $ld_type in
5951     clang)
5952         check_ldflags -Qunused-arguments
5953     ;;
5954 esac
5955
5956 case $target_os in
5957     osf1)
5958         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5959     ;;
5960     plan9)
5961         add_cppflags -Dmain=plan9_main
5962     ;;
5963 esac
5964
5965 enable frame_thread_encoder
5966
5967 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5968
5969 check_deps $CONFIG_LIST       \
5970            $CONFIG_EXTRA      \
5971            $HAVE_LIST         \
5972            $ALL_COMPONENTS    \
5973
5974 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"
5975
5976
5977 if test $target_os = "haiku"; then
5978     disable memalign
5979     disable posix_memalign
5980 fi
5981
5982 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5983     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5984     enable dxva2_lib
5985
5986 ! enabled_any memalign posix_memalign aligned_malloc &&
5987     enabled simd_align_16 && enable memalign_hack
5988
5989 # add_dep lib dep
5990 # -> enable ${lib}_deps_${dep}
5991 # -> add $dep to ${lib}_deps only once
5992 add_dep() {
5993     lib=$1
5994     dep=$2
5995     enabled "${lib}_deps_${dep}" && return 0
5996     enable  "${lib}_deps_${dep}"
5997     prepend "${lib}_deps" $dep
5998 }
5999
6000 # merge deps lib components
6001 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6002 merge_deps() {
6003     lib=$1
6004     shift
6005     for comp in $*; do
6006         enabled $comp || continue
6007         eval "dep=\"\$${comp}_deps\""
6008         for d in $dep; do
6009             add_dep $lib $d
6010         done
6011     done
6012 }
6013
6014 merge_deps libavfilter $FILTER_LIST
6015
6016 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6017
6018 for thread in $THREADS_LIST; do
6019     if enabled $thread; then
6020         test -n "$thread_type" &&
6021             die "ERROR: Only one thread type must be selected." ||
6022             thread_type="$thread"
6023     fi
6024 done
6025
6026 enabled zlib && add_cppflags -DZLIB_CONST
6027
6028 # conditional library dependencies, in linking order
6029 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6030 enabled aresample_filter    && prepend avfilter_deps "swresample"
6031 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6032 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6033 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6034 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6035 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6036 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6037 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6038 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6039 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6040 enabled pan_filter          && prepend avfilter_deps "swresample"
6041 enabled pp_filter           && prepend avfilter_deps "postproc"
6042 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6043 enabled resample_filter && prepend avfilter_deps "avresample"
6044 enabled sab_filter          && prepend avfilter_deps "swscale"
6045 enabled scale_filter    && prepend avfilter_deps "swscale"
6046 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6047 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6048 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6049 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6050 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6051 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6052 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6053
6054 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6055
6056 enabled opus_decoder    && prepend avcodec_deps "swresample"
6057
6058 expand_deps(){
6059     lib_deps=${1}_deps
6060     eval "deps=\$$lib_deps"
6061     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6062     unique $lib_deps
6063 }
6064
6065 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6066 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6067
6068 map 'expand_deps $v' $LIBRARY_LIST
6069
6070 echo "install prefix            $prefix"
6071 echo "source path               $source_path"
6072 echo "C compiler                $cc"
6073 echo "C library                 $libc_type"
6074 if test "$host_cc" != "$cc"; then
6075     echo "host C compiler           $host_cc"
6076     echo "host C library            $host_libc_type"
6077 fi
6078 echo "ARCH                      $arch ($cpu)"
6079 if test "$build_suffix" != ""; then
6080     echo "build suffix              $build_suffix"
6081 fi
6082 if test "$progs_suffix" != ""; then
6083     echo "progs suffix              $progs_suffix"
6084 fi
6085 if test "$extra_version" != ""; then
6086     echo "version string suffix     $extra_version"
6087 fi
6088 echo "big-endian                ${bigendian-no}"
6089 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6090 if enabled x86; then
6091     echo "${yasmexe}                      ${yasm-no}"
6092     echo "MMX enabled               ${mmx-no}"
6093     echo "MMXEXT enabled            ${mmxext-no}"
6094     echo "3DNow! enabled            ${amd3dnow-no}"
6095     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6096     echo "SSE enabled               ${sse-no}"
6097     echo "SSSE3 enabled             ${ssse3-no}"
6098     echo "AESNI enabled             ${aesni-no}"
6099     echo "AVX enabled               ${avx-no}"
6100     echo "XOP enabled               ${xop-no}"
6101     echo "FMA3 enabled              ${fma3-no}"
6102     echo "FMA4 enabled              ${fma4-no}"
6103     echo "i686 features enabled     ${i686-no}"
6104     echo "CMOV is fast              ${fast_cmov-no}"
6105     echo "EBX available             ${ebx_available-no}"
6106     echo "EBP available             ${ebp_available-no}"
6107 fi
6108 if enabled aarch64; then
6109     echo "NEON enabled              ${neon-no}"
6110     echo "VFP enabled               ${vfp-no}"
6111 fi
6112 if enabled arm; then
6113     echo "ARMv5TE enabled           ${armv5te-no}"
6114     echo "ARMv6 enabled             ${armv6-no}"
6115     echo "ARMv6T2 enabled           ${armv6t2-no}"
6116     echo "VFP enabled               ${vfp-no}"
6117     echo "NEON enabled              ${neon-no}"
6118     echo "THUMB enabled             ${thumb-no}"
6119 fi
6120 if enabled mips; then
6121     echo "MIPS FPU enabled          ${mipsfpu-no}"
6122     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6123     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6124     echo "MIPS MSA enabled          ${msa-no}"
6125     echo "LOONGSON MMI enabled      ${mmi-no}"
6126 fi
6127 if enabled ppc; then
6128     echo "AltiVec enabled           ${altivec-no}"
6129     echo "VSX enabled               ${vsx-no}"
6130     echo "POWER8 enabled            ${power8-no}"
6131     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6132     echo "dcbzl available           ${dcbzl-no}"
6133 fi
6134 echo "debug symbols             ${debug-no}"
6135 echo "strip symbols             ${stripping-no}"
6136 echo "optimize for size         ${small-no}"
6137 echo "optimizations             ${optimizations-no}"
6138 echo "static                    ${static-no}"
6139 echo "shared                    ${shared-no}"
6140 echo "postprocessing support    ${postproc-no}"
6141 echo "new filter support        ${avfilter-no}"
6142 echo "network support           ${network-no}"
6143 echo "threading support         ${thread_type-no}"
6144 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6145 echo "SDL support               ${sdl-no}"
6146 echo "opencl enabled            ${opencl-no}"
6147 echo "texi2html enabled         ${texi2html-no}"
6148 echo "perl enabled              ${perl-no}"
6149 echo "pod2man enabled           ${pod2man-no}"
6150 echo "makeinfo enabled          ${makeinfo-no}"
6151 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6152 test -n "$random_seed" &&
6153     echo "random seed               ${random_seed}"
6154 echo
6155
6156 echo "Enabled programs:"
6157 print_enabled '' $PROGRAM_LIST | print_in_columns
6158 echo
6159
6160 echo "External libraries:"
6161 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6162 echo
6163
6164 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6165     echo "Enabled ${type}s:"
6166     eval list=\$$(toupper $type)_LIST
6167     print_enabled '_*' $list | print_in_columns
6168     echo
6169 done
6170
6171 license="LGPL version 2.1 or later"
6172 if enabled nonfree; then
6173     license="nonfree and unredistributable"
6174 elif enabled gplv3; then
6175     license="GPL version 3 or later"
6176 elif enabled lgplv3; then
6177     license="LGPL version 3 or later"
6178 elif enabled gpl; then
6179     license="GPL version 2 or later"
6180 fi
6181
6182 echo "License: $license"
6183
6184 echo "Creating config.mak, config.h, and doc/config.texi..."
6185
6186 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6187
6188 enabled stripping || strip="echo skipping strip"
6189
6190 config_files="$TMPH config.mak doc/config.texi"
6191
6192 cat > config.mak <<EOF
6193 # Automatically generated by configure - do not modify!
6194 ifndef FFMPEG_CONFIG_MAK
6195 FFMPEG_CONFIG_MAK=1
6196 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6197 prefix=$prefix
6198 LIBDIR=\$(DESTDIR)$libdir
6199 SHLIBDIR=\$(DESTDIR)$shlibdir
6200 INCDIR=\$(DESTDIR)$incdir
6201 BINDIR=\$(DESTDIR)$bindir
6202 DATADIR=\$(DESTDIR)$datadir
6203 DOCDIR=\$(DESTDIR)$docdir
6204 MANDIR=\$(DESTDIR)$mandir
6205 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6206 SRC_PATH=$source_path
6207 ifndef MAIN_MAKEFILE
6208 SRC_PATH:=\$(SRC_PATH:.%=..%)
6209 endif
6210 CC_IDENT=$cc_ident
6211 ARCH=$arch
6212 INTRINSICS=$intrinsics
6213 CC=$cc
6214 CXX=$cxx
6215 AS=$as
6216 OBJCC=$objcc
6217 LD=$ld
6218 DEPCC=$dep_cc
6219 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6220 DEPAS=$as
6221 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6222 YASM=$yasmexe
6223 DEPYASM=$yasmexe
6224 AR=$ar
6225 ARFLAGS=$arflags
6226 AR_O=$ar_o
6227 RANLIB=$ranlib
6228 STRIP=$strip
6229 CP=cp -p
6230 LN_S=$ln_s
6231 CPPFLAGS=$CPPFLAGS
6232 CFLAGS=$CFLAGS
6233 CXXFLAGS=$CXXFLAGS
6234 OBJCFLAGS=$OBJCFLAGS
6235 ASFLAGS=$ASFLAGS
6236 AS_C=$AS_C
6237 AS_O=$AS_O
6238 OBJCC_C=$OBJCC_C
6239 OBJCC_E=$OBJCC_E
6240 OBJCC_O=$OBJCC_O
6241 CC_C=$CC_C
6242 CC_E=$CC_E
6243 CC_O=$CC_O
6244 CXX_C=$CXX_C
6245 CXX_O=$CXX_O
6246 LD_O=$LD_O
6247 LD_LIB=$LD_LIB
6248 LD_PATH=$LD_PATH
6249 DLLTOOL=$dlltool
6250 WINDRES=$windres
6251 DEPWINDRES=$dep_cc
6252 DOXYGEN=$doxygen
6253 LDFLAGS=$LDFLAGS
6254 LDEXEFLAGS=$LDEXEFLAGS
6255 LDLIBFLAGS=$LDLIBFLAGS
6256 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6257 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6258 YASMFLAGS=$YASMFLAGS
6259 BUILDSUF=$build_suffix
6260 PROGSSUF=$progs_suffix
6261 FULLNAME=$FULLNAME
6262 LIBPREF=$LIBPREF
6263 LIBSUF=$LIBSUF
6264 LIBNAME=$LIBNAME
6265 SLIBPREF=$SLIBPREF
6266 SLIBSUF=$SLIBSUF
6267 EXESUF=$EXESUF
6268 EXTRA_VERSION=$extra_version
6269 CCDEP=$CCDEP
6270 CXXDEP=$CXXDEP
6271 CCDEP_FLAGS=$CCDEP_FLAGS
6272 ASDEP=$ASDEP
6273 ASDEP_FLAGS=$ASDEP_FLAGS
6274 CC_DEPFLAGS=$CC_DEPFLAGS
6275 AS_DEPFLAGS=$AS_DEPFLAGS
6276 HOSTCC=$host_cc
6277 HOSTLD=$host_ld
6278 HOSTCFLAGS=$host_cflags
6279 HOSTCPPFLAGS=$host_cppflags
6280 HOSTEXESUF=$HOSTEXESUF
6281 HOSTLDFLAGS=$host_ldflags
6282 HOSTLIBS=$host_libs
6283 DEPHOSTCC=$host_cc
6284 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6285 HOSTCCDEP=$HOSTCCDEP
6286 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6287 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6288 HOSTCC_C=$HOSTCC_C
6289 HOSTCC_O=$HOSTCC_O
6290 HOSTLD_O=$HOSTLD_O
6291 TARGET_EXEC=$target_exec $target_exec_args
6292 TARGET_PATH=$target_path
6293 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6294 CFLAGS-ffplay=$sdl_cflags
6295 ZLIB=$($ldflags_filter -lz)
6296 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6297 EXTRALIBS=$extralibs
6298 COMPAT_OBJS=$compat_objs
6299 EXEOBJS=$exeobjs
6300 INSTALL=$install
6301 LIBTARGET=${LIBTARGET}
6302 SLIBNAME=${SLIBNAME}
6303 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6304 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6305 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6306 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6307 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6308 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6309 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6310 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6311 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6312 NOREDZONE_FLAGS=$noredzone_flags
6313 EOF
6314
6315 get_version(){
6316     lcname=lib${1}
6317     name=$(toupper $lcname)
6318     file=$source_path/$lcname/version.h
6319     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6320     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6321     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6322     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6323     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6324     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6325 }
6326
6327 map 'get_version $v' $LIBRARY_LIST
6328
6329 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6330
6331 print_program_libs(){
6332     eval "program_libs=\$${1}_libs"
6333     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6334 }
6335
6336 map 'print_program_libs $v' $PROGRAM_LIST
6337
6338 cat > $TMPH <<EOF
6339 /* Automatically generated by configure - do not modify! */
6340 #ifndef FFMPEG_CONFIG_H
6341 #define FFMPEG_CONFIG_H
6342 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6343 #define FFMPEG_LICENSE "$(c_escape $license)"
6344 #define CONFIG_THIS_YEAR 2015
6345 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6346 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6347 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6348 #define av_restrict $_restrict
6349 #define EXTERN_PREFIX "${extern_prefix}"
6350 #define EXTERN_ASM ${extern_prefix}
6351 #define BUILDSUF "$build_suffix"
6352 #define SLIBSUF "$SLIBSUF"
6353 #define HAVE_MMX2 HAVE_MMXEXT
6354 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6355 EOF
6356
6357 test -n "$assert_level" &&
6358     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6359
6360 test -n "$malloc_prefix" &&
6361     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6362
6363 if enabled yasm; then
6364     append config_files $TMPASM
6365     printf '' >$TMPASM
6366 fi
6367
6368 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6369
6370
6371 mkdir -p doc
6372 mkdir -p tests
6373 mkdir -p tests/api
6374 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6375
6376 print_config ARCH_   "$config_files" $ARCH_LIST
6377 print_config HAVE_   "$config_files" $HAVE_LIST
6378 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6379                                      $CONFIG_EXTRA      \
6380                                      $ALL_COMPONENTS    \
6381
6382 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6383 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6384
6385 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6386 cp_if_changed $TMPH config.h
6387 touch .config
6388
6389 enabled yasm && cp_if_changed $TMPASM config.asm
6390
6391 cat > $TMPH <<EOF
6392 /* Generated by ffconf */
6393 #ifndef AVUTIL_AVCONFIG_H
6394 #define AVUTIL_AVCONFIG_H
6395 EOF
6396
6397 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6398
6399 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6400
6401 cp_if_changed $TMPH libavutil/avconfig.h
6402
6403 if test -n "$WARNINGS"; then
6404     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6405     enabled fatal_warnings && exit 1
6406 fi
6407
6408 # build pkg-config files
6409
6410 lib_version(){
6411     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6412 }
6413
6414 pkgconfig_generate(){
6415     name=$1
6416     shortname=${name#lib}${build_suffix}
6417     comment=$2
6418     version=$3
6419     libs=$4
6420     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6421     requires=${requires%, }
6422     enabled ${name#lib} || return 0
6423     mkdir -p $name
6424     cat <<EOF > $name/$name${build_suffix}.pc
6425 prefix=$prefix
6426 exec_prefix=\${prefix}
6427 libdir=$libdir
6428 includedir=$incdir
6429
6430 Name: $name
6431 Description: $comment
6432 Version: $version
6433 Requires: $(enabled shared || echo $requires)
6434 Requires.private: $(enabled shared && echo $requires)
6435 Conflicts:
6436 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6437 Libs.private: $(enabled shared && echo $libs)
6438 Cflags: -I\${includedir}
6439 EOF
6440
6441 mkdir -p doc/examples/pc-uninstalled
6442 includedir=${source_path}
6443 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6444     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6445 prefix=
6446 exec_prefix=
6447 libdir=\${pcfiledir}/../../../$name
6448 includedir=${includedir}
6449
6450 Name: $name
6451 Description: $comment
6452 Version: $version
6453 Requires: $requires
6454 Conflicts:
6455 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6456 Cflags: -I\${includedir}
6457 EOF
6458 }
6459
6460 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6461 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6462 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6463 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6464 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6465 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6466 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6467 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6468 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"