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_1_5_openjpeg_h
1781     OpenGL_gl3_h
1782     poll_h
1783     sndio_h
1784     soundcard_h
1785     sys_mman_h
1786     sys_param_h
1787     sys_resource_h
1788     sys_select_h
1789     sys_soundcard_h
1790     sys_time_h
1791     sys_un_h
1792     sys_videoio_h
1793     termios_h
1794     udplite_h
1795     unistd_h
1796     valgrind_valgrind_h
1797     windows_h
1798     winsock2_h
1799 "
1800
1801 INTRINSICS_LIST="
1802     intrinsics_neon
1803 "
1804
1805 COMPLEX_FUNCS="
1806     cabs
1807     cexp
1808 "
1809
1810 MATH_FUNCS="
1811     atanf
1812     atan2f
1813     cbrt
1814     cbrtf
1815     copysign
1816     cosf
1817     erf
1818     exp2
1819     exp2f
1820     expf
1821     hypot
1822     isinf
1823     isnan
1824     ldexpf
1825     llrint
1826     llrintf
1827     log2
1828     log2f
1829     log10f
1830     lrint
1831     lrintf
1832     powf
1833     rint
1834     round
1835     roundf
1836     sinf
1837     trunc
1838     truncf
1839 "
1840
1841 SYSTEM_FUNCS="
1842     access
1843     aligned_malloc
1844     clock_gettime
1845     closesocket
1846     CommandLineToArgvW
1847     CoTaskMemFree
1848     CryptGenRandom
1849     dlopen
1850     fcntl
1851     flt_lim
1852     fork
1853     getaddrinfo
1854     gethrtime
1855     getopt
1856     GetProcessAffinityMask
1857     GetProcessMemoryInfo
1858     GetProcessTimes
1859     getrusage
1860     GetSystemTimeAsFileTime
1861     gettimeofday
1862     glob
1863     glXGetProcAddress
1864     gmtime_r
1865     inet_aton
1866     isatty
1867     jack_port_get_latency_range
1868     kbhit
1869     localtime_r
1870     lstat
1871     lzo1x_999_compress
1872     mach_absolute_time
1873     MapViewOfFile
1874     memalign
1875     mkstemp
1876     mmap
1877     mprotect
1878     nanosleep
1879     PeekNamedPipe
1880     posix_memalign
1881     pthread_cancel
1882     sched_getaffinity
1883     SetConsoleTextAttribute
1884     SetConsoleCtrlHandler
1885     setmode
1886     setrlimit
1887     Sleep
1888     strerror_r
1889     sysconf
1890     sysctl
1891     usleep
1892     UTGetOSTypeFromString
1893     VirtualAlloc
1894     wglGetProcAddress
1895 "
1896
1897 TOOLCHAIN_FEATURES="
1898     as_dn_directive
1899     as_func
1900     as_object_arch
1901     asm_mod_q
1902     attribute_may_alias
1903     attribute_packed
1904     ebp_available
1905     ebx_available
1906     gnu_as
1907     gnu_windres
1908     ibm_asm
1909     inline_asm_labels
1910     inline_asm_nonlocal_labels
1911     inline_asm_direct_symbol_refs
1912     pragma_deprecated
1913     rsync_contimeout
1914     symver_asm_label
1915     symver_gnu_asm
1916     vfp_args
1917     xform_asm
1918     xmm_clobbers
1919 "
1920
1921 TYPES_LIST="
1922     CONDITION_VARIABLE_Ptr
1923     socklen_t
1924     struct_addrinfo
1925     struct_group_source_req
1926     struct_ip_mreq_source
1927     struct_ipv6_mreq
1928     struct_pollfd
1929     struct_rusage_ru_maxrss
1930     struct_sctp_event_subscribe
1931     struct_sockaddr_in6
1932     struct_sockaddr_sa_len
1933     struct_sockaddr_storage
1934     struct_stat_st_mtim_tv_nsec
1935     struct_v4l2_frmivalenum_discrete
1936 "
1937
1938 HAVE_LIST="
1939     $ARCH_EXT_LIST
1940     $(add_suffix _external $ARCH_EXT_LIST)
1941     $(add_suffix _inline   $ARCH_EXT_LIST)
1942     $ARCH_FEATURES
1943     $ATOMICS_LIST
1944     $BUILTIN_LIST
1945     $COMPLEX_FUNCS
1946     $HAVE_LIST_CMDLINE
1947     $HAVE_LIST_PUB
1948     $HEADERS_LIST
1949     $INTRINSICS_LIST
1950     $MATH_FUNCS
1951     $SYSTEM_FUNCS
1952     $THREADS_LIST
1953     $TOOLCHAIN_FEATURES
1954     $TYPES_LIST
1955     atomics_native
1956     dos_paths
1957     dxva2api_cobj
1958     dxva2_lib
1959     winrt
1960     libc_msvcrt
1961     libdc1394_1
1962     libdc1394_2
1963     makeinfo
1964     makeinfo_html
1965     perl
1966     pod2man
1967     sdl
1968     section_data_rel_ro
1969     texi2html
1970     threads
1971     vaapi_x11
1972     vdpau_x11
1973     xlib
1974 "
1975
1976 # options emitted with CONFIG_ prefix but not available on the command line
1977 CONFIG_EXTRA="
1978     aandcttables
1979     ac3dsp
1980     audio_frame_queue
1981     audiodsp
1982     blockdsp
1983     bswapdsp
1984     cabac
1985     dirac_parse
1986     dvprofile
1987     exif
1988     faandct
1989     faanidct
1990     fdctdsp
1991     flacdsp
1992     fmtconvert
1993     frame_thread_encoder
1994     g722dsp
1995     golomb
1996     gplv3
1997     h263dsp
1998     h264chroma
1999     h264dsp
2000     h264pred
2001     h264qpel
2002     hpeldsp
2003     huffman
2004     huffyuvdsp
2005     huffyuvencdsp
2006     idctdsp
2007     iirfilter
2008     imdct15
2009     intrax8
2010     ividsp
2011     jpegtables
2012     libx262
2013     lgplv3
2014     llauddsp
2015     llviddsp
2016     lpc
2017     lzf
2018     me_cmp
2019     mpeg_er
2020     mpegaudio
2021     mpegaudiodsp
2022     mpegvideo
2023     mpegvideoenc
2024     mss34dsp
2025     pixblockdsp
2026     qpeldsp
2027     qsv
2028     qsvdec
2029     qsvenc
2030     rangecoder
2031     riffdec
2032     riffenc
2033     rtpdec
2034     rtpenc_chain
2035     rv34dsp
2036     sinewin
2037     snappy
2038     startcode
2039     texturedsp
2040     texturedspenc
2041     tpeldsp
2042     videodsp
2043     vp3dsp
2044     vp56dsp
2045     vp8dsp
2046     wma_freqs
2047     wmv2dsp
2048 "
2049
2050 CMDLINE_SELECT="
2051     $ARCH_EXT_LIST
2052     $CONFIG_LIST
2053     $HAVE_LIST_CMDLINE
2054     $THREADS_LIST
2055     asm
2056     cross_compile
2057     debug
2058     extra_warnings
2059     logging
2060     lto
2061     optimizations
2062     rpath
2063     stripping
2064 "
2065
2066 PATHS_LIST="
2067     bindir
2068     datadir
2069     docdir
2070     incdir
2071     libdir
2072     mandir
2073     pkgconfigdir
2074     prefix
2075     shlibdir
2076 "
2077
2078 CMDLINE_SET="
2079     $PATHS_LIST
2080     ar
2081     arch
2082     as
2083     assert_level
2084     build_suffix
2085     cc
2086     objcc
2087     cpu
2088     cross_prefix
2089     custom_allocator
2090     cxx
2091     dep_cc
2092     doxygen
2093     env
2094     extra_version
2095     gas
2096     host_cc
2097     host_cflags
2098     host_ld
2099     host_ldflags
2100     host_libs
2101     host_os
2102     install
2103     ld
2104     logfile
2105     malloc_prefix
2106     nm
2107     optflags
2108     pkg_config
2109     pkg_config_flags
2110     progs_suffix
2111     random_seed
2112     ranlib
2113     samples
2114     strip
2115     sws_max_filter_size
2116     sysinclude
2117     sysroot
2118     target_exec
2119     target_os
2120     target_path
2121     target_samples
2122     tempprefix
2123     toolchain
2124     valgrind
2125     yasmexe
2126 "
2127
2128 CMDLINE_APPEND="
2129     extra_cflags
2130     extra_cxxflags
2131     extra_objcflags
2132     host_cppflags
2133 "
2134
2135 # code dependency declarations
2136
2137 # architecture extensions
2138
2139 armv5te_deps="arm"
2140 armv6_deps="arm"
2141 armv6t2_deps="arm"
2142 armv8_deps="aarch64"
2143 neon_deps_any="aarch64 arm"
2144 intrinsics_neon_deps="neon"
2145 vfp_deps_any="aarch64 arm"
2146 vfpv3_deps="vfp"
2147 setend_deps="arm"
2148
2149 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2150
2151 mipsfpu_deps="mips"
2152 mipsdsp_deps="mips"
2153 mipsdspr2_deps="mips"
2154 mips32r2_deps="mips"
2155 mips64r2_deps="mips"
2156 mips64r6_deps="mips"
2157 msa_deps="mips"
2158 mmi_deps="mips"
2159
2160 altivec_deps="ppc"
2161 dcbzl_deps="ppc"
2162 ldbrx_deps="ppc"
2163 ppc4xx_deps="ppc"
2164 vsx_deps="altivec"
2165 power8_deps="vsx"
2166
2167 cpunop_deps="i686"
2168 x86_64_select="i686"
2169 x86_64_suggest="fast_cmov"
2170
2171 amd3dnow_deps="mmx"
2172 amd3dnowext_deps="amd3dnow"
2173 i686_deps="x86"
2174 mmx_deps="x86"
2175 mmxext_deps="mmx"
2176 sse_deps="mmxext"
2177 sse2_deps="sse"
2178 sse3_deps="sse2"
2179 ssse3_deps="sse3"
2180 sse4_deps="ssse3"
2181 sse42_deps="sse4"
2182 aesni_deps="sse42"
2183 avx_deps="sse42"
2184 xop_deps="avx"
2185 fma3_deps="avx"
2186 fma4_deps="avx"
2187 avx2_deps="avx"
2188
2189 mmx_external_deps="yasm"
2190 mmx_inline_deps="inline_asm"
2191 mmx_suggest="mmx_external mmx_inline"
2192
2193 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2194     eval dep=\$${ext}_deps
2195     eval ${ext}_external_deps='"${dep}_external"'
2196     eval ${ext}_inline_deps='"${dep}_inline"'
2197     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2198 done
2199
2200 aligned_stack_if_any="aarch64 ppc x86"
2201 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2202 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2203 fast_unaligned_if_any="aarch64 ppc x86"
2204 simd_align_16_if_any="altivec neon sse"
2205
2206 # system capabilities
2207 symver_if_any="symver_asm_label symver_gnu_asm"
2208 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2209
2210 # threading support
2211 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2212 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2213 atomics_win32_if="MemoryBarrier"
2214 atomics_native_if_any="$ATOMICS_LIST"
2215 w32threads_deps="atomics_native"
2216 threads_if_any="$THREADS_LIST"
2217
2218 # subsystems
2219 dct_select="rdft"
2220 dirac_parse_select="golomb"
2221 error_resilience_select="me_cmp"
2222 faandct_deps="faan fdctdsp"
2223 faanidct_deps="faan idctdsp"
2224 frame_thread_encoder_deps="encoders threads"
2225 intrax8_select="error_resilience"
2226 mdct_select="fft"
2227 rdft_select="fft"
2228 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2229 mpeg_er_select="error_resilience"
2230 mpegaudio_select="mpegaudiodsp"
2231 mpegaudiodsp_select="dct"
2232 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2233 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2234 qsvdec_select="qsv"
2235 qsvenc_select="qsv"
2236
2237 # decoders / encoders
2238 aac_decoder_select="imdct15 mdct sinewin"
2239 aac_fixed_decoder_select="mdct sinewin"
2240 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2241 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2242 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2243 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2244 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2245 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2246 adpcm_g722_decoder_select="g722dsp"
2247 adpcm_g722_encoder_select="g722dsp"
2248 aic_decoder_select="golomb idctdsp"
2249 alac_encoder_select="lpc"
2250 als_decoder_select="bswapdsp"
2251 amrnb_decoder_select="lsp"
2252 amrwb_decoder_select="lsp"
2253 amv_decoder_select="sp5x_decoder exif"
2254 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2255 ape_decoder_select="bswapdsp llauddsp"
2256 apng_decoder_select="zlib"
2257 apng_encoder_select="huffyuvencdsp zlib"
2258 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2259 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2260 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2261 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2262 atrac1_decoder_select="mdct sinewin"
2263 atrac3_decoder_select="mdct"
2264 atrac3p_decoder_select="mdct sinewin"
2265 avrn_decoder_select="exif jpegtables"
2266 bink_decoder_select="blockdsp hpeldsp"
2267 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2268 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2269 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2270 cllc_decoder_select="bswapdsp"
2271 comfortnoise_encoder_select="lpc"
2272 cook_decoder_select="audiodsp mdct sinewin"
2273 cscd_decoder_select="lzo"
2274 cscd_decoder_suggest="zlib"
2275 dca_decoder_select="fmtconvert mdct"
2276 dds_decoder_select="texturedsp"
2277 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2278 dnxhd_decoder_select="blockdsp idctdsp"
2279 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2280 dvvideo_decoder_select="dvprofile idctdsp"
2281 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2282 dxa_decoder_select="zlib"
2283 dxv_decoder_select="lzf texturedsp"
2284 eac3_decoder_select="ac3_decoder"
2285 eac3_encoder_select="ac3_encoder"
2286 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2287 eatgq_decoder_select="aandcttables"
2288 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2289 exr_decoder_select="zlib"
2290 ffv1_decoder_select="golomb rangecoder"
2291 ffv1_encoder_select="rangecoder"
2292 ffvhuff_decoder_select="huffyuv_decoder"
2293 ffvhuff_encoder_select="huffyuv_encoder"
2294 fic_decoder_select="golomb"
2295 flac_decoder_select="flacdsp golomb"
2296 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2297 flashsv_decoder_select="zlib"
2298 flashsv_encoder_select="zlib"
2299 flashsv2_encoder_select="zlib"
2300 flashsv2_decoder_select="zlib"
2301 flv_decoder_select="h263_decoder"
2302 flv_encoder_select="h263_encoder"
2303 fourxm_decoder_select="blockdsp bswapdsp"
2304 fraps_decoder_select="bswapdsp huffman"
2305 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2306 g729_decoder_select="audiodsp"
2307 h261_decoder_select="mpegvideo"
2308 h261_encoder_select="aandcttables mpegvideoenc"
2309 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2310 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2311 h263i_decoder_select="h263_decoder"
2312 h263p_decoder_select="h263_decoder"
2313 h263p_encoder_select="h263_encoder"
2314 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2315 h264_decoder_suggest="error_resilience"
2316 h264_qsv_decoder_deps="libmfx"
2317 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2318 h264_qsv_encoder_deps="libmfx"
2319 h264_qsv_encoder_select="qsvenc"
2320 hap_decoder_select="snappy texturedsp"
2321 hap_encoder_deps="libsnappy"
2322 hap_encoder_select="texturedspenc"
2323 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2324 hevc_qsv_encoder_deps="libmfx"
2325 hevc_qsv_decoder_deps="libmfx"
2326 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2327 hevc_qsv_encoder_select="qsvenc"
2328 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2329 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2330 iac_decoder_select="imc_decoder"
2331 imc_decoder_select="bswapdsp fft mdct sinewin"
2332 indeo3_decoder_select="hpeldsp"
2333 indeo4_decoder_select="ividsp"
2334 indeo5_decoder_select="ividsp"
2335 interplay_video_decoder_select="hpeldsp"
2336 jpegls_decoder_select="golomb mjpeg_decoder"
2337 jpegls_encoder_select="golomb"
2338 jv_decoder_select="blockdsp"
2339 lagarith_decoder_select="huffyuvdsp"
2340 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2341 loco_decoder_select="golomb"
2342 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2343 metasound_decoder_select="lsp mdct sinewin"
2344 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2345 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2346 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2347 mjpegb_decoder_select="mjpeg_decoder"
2348 mlp_decoder_select="mlp_parser"
2349 motionpixels_decoder_select="bswapdsp"
2350 mp1_decoder_select="mpegaudio"
2351 mp1float_decoder_select="mpegaudio"
2352 mp2_decoder_select="mpegaudio"
2353 mp2float_decoder_select="mpegaudio"
2354 mp3_decoder_select="mpegaudio"
2355 mp3adu_decoder_select="mpegaudio"
2356 mp3adufloat_decoder_select="mpegaudio"
2357 mp3float_decoder_select="mpegaudio"
2358 mp3on4_decoder_select="mpegaudio"
2359 mp3on4float_decoder_select="mpegaudio"
2360 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2361 mpc8_decoder_select="mpegaudiodsp"
2362 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2363 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2364 mpegvideo_decoder_select="mpegvideo"
2365 mpeg1video_decoder_select="mpegvideo"
2366 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2367 mpeg2video_decoder_select="mpegvideo"
2368 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2369 mpeg2_qsv_decoder_deps="libmfx"
2370 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2371 mpeg2_qsv_encoder_deps="libmfx"
2372 mpeg2_qsv_encoder_select="qsvenc"
2373 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2374 mpeg4_encoder_select="h263_encoder"
2375 msa1_decoder_select="mss34dsp"
2376 msmpeg4v1_decoder_select="h263_decoder"
2377 msmpeg4v2_decoder_select="h263_decoder"
2378 msmpeg4v2_encoder_select="h263_encoder"
2379 msmpeg4v3_decoder_select="h263_decoder"
2380 msmpeg4v3_encoder_select="h263_encoder"
2381 mss2_decoder_select="vc1_decoder"
2382 mts2_decoder_select="mss34dsp"
2383 mxpeg_decoder_select="mjpeg_decoder"
2384 nellymoser_decoder_select="mdct sinewin"
2385 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2386 nuv_decoder_select="idctdsp lzo"
2387 on2avc_decoder_select="mdct"
2388 opus_decoder_deps="swresample"
2389 opus_decoder_select="imdct15"
2390 png_decoder_select="zlib"
2391 png_encoder_select="huffyuvencdsp zlib"
2392 prores_decoder_select="blockdsp idctdsp"
2393 prores_encoder_select="fdctdsp"
2394 qcelp_decoder_select="lsp"
2395 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2396 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2397 ra_144_decoder_select="audiodsp"
2398 ralf_decoder_select="golomb"
2399 rawvideo_decoder_select="bswapdsp"
2400 rscc_decoder_select="zlib"
2401 rtjpeg_decoder_select="me_cmp"
2402 rv10_decoder_select="h263_decoder"
2403 rv10_encoder_select="h263_encoder"
2404 rv20_decoder_select="h263_decoder"
2405 rv20_encoder_select="h263_encoder"
2406 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2407 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2408 screenpresso_decoder_select="zlib"
2409 shorten_decoder_select="golomb"
2410 sipr_decoder_select="lsp"
2411 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2412 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2413 sonic_decoder_select="golomb rangecoder"
2414 sonic_encoder_select="golomb rangecoder"
2415 sonic_ls_encoder_select="golomb rangecoder"
2416 sp5x_decoder_select="mjpeg_decoder"
2417 svq1_decoder_select="hpeldsp"
2418 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2419 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2420 svq3_decoder_suggest="zlib"
2421 tak_decoder_select="audiodsp"
2422 tdsc_decoder_select="zlib mjpeg_decoder"
2423 theora_decoder_select="vp3_decoder"
2424 thp_decoder_select="mjpeg_decoder"
2425 tiff_decoder_suggest="zlib lzma"
2426 tiff_encoder_suggest="zlib"
2427 truehd_decoder_select="mlp_parser"
2428 truemotion2_decoder_select="bswapdsp"
2429 truespeech_decoder_select="bswapdsp"
2430 tscc_decoder_select="zlib"
2431 twinvq_decoder_select="mdct lsp sinewin"
2432 txd_decoder_select="texturedsp"
2433 utvideo_decoder_select="bswapdsp"
2434 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2435 vble_decoder_select="huffyuvdsp"
2436 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2437 vc1image_decoder_select="vc1_decoder"
2438 vc1_qsv_decoder_deps="libmfx"
2439 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2440 vorbis_decoder_select="mdct"
2441 vorbis_encoder_select="mdct"
2442 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2443 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2444 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2445 vp6a_decoder_select="vp6_decoder"
2446 vp6f_decoder_select="vp6_decoder"
2447 vp7_decoder_select="h264pred videodsp vp8dsp"
2448 vp8_decoder_select="h264pred videodsp vp8dsp"
2449 vp9_decoder_select="videodsp vp9_parser"
2450 webp_decoder_select="vp8_decoder"
2451 wmalossless_decoder_select="llauddsp"
2452 wmapro_decoder_select="mdct sinewin wma_freqs"
2453 wmav1_decoder_select="mdct sinewin wma_freqs"
2454 wmav1_encoder_select="mdct sinewin wma_freqs"
2455 wmav2_decoder_select="mdct sinewin wma_freqs"
2456 wmav2_encoder_select="mdct sinewin wma_freqs"
2457 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2458 wmv1_decoder_select="h263_decoder"
2459 wmv1_encoder_select="h263_encoder"
2460 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2461 wmv2_encoder_select="h263_encoder wmv2dsp"
2462 wmv3_decoder_select="vc1_decoder"
2463 wmv3image_decoder_select="wmv3_decoder"
2464 zerocodec_decoder_select="zlib"
2465 zlib_decoder_select="zlib"
2466 zlib_encoder_select="zlib"
2467 zmbv_decoder_select="zlib"
2468 zmbv_encoder_select="zlib"
2469
2470 # hardware accelerators
2471 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2472 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2473 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2474 vaapi_deps="va_va_h"
2475 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2476 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2477 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2478 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2479 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2480 xvmc_deps="X11_extensions_XvMClib_h"
2481
2482 h263_vaapi_hwaccel_deps="vaapi"
2483 h263_vaapi_hwaccel_select="h263_decoder"
2484 h263_videotoolbox_hwaccel_deps="videotoolbox"
2485 h263_videotoolbox_hwaccel_select="h263_decoder"
2486 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2487 h264_d3d11va_hwaccel_deps="d3d11va"
2488 h264_d3d11va_hwaccel_select="h264_decoder"
2489 h264_dxva2_hwaccel_deps="dxva2"
2490 h264_dxva2_hwaccel_select="h264_decoder"
2491 h264_mmal_decoder_deps="mmal"
2492 h264_mmal_hwaccel_deps="mmal"
2493 h264_mmal_decoder_select="h264_decoder"
2494 h264_mmal_encoder_deps="mmal"
2495 h264_qsv_hwaccel_deps="libmfx"
2496 h264_vaapi_hwaccel_deps="vaapi"
2497 h264_vaapi_hwaccel_select="h264_decoder"
2498 h264_vda_decoder_deps="vda"
2499 h264_vda_decoder_select="h264_decoder"
2500 h264_vda_hwaccel_deps="vda"
2501 h264_vda_hwaccel_select="h264_decoder"
2502 h264_vda_old_hwaccel_deps="vda"
2503 h264_vda_old_hwaccel_select="h264_decoder"
2504 h264_vdpau_decoder_deps="vdpau"
2505 h264_vdpau_decoder_select="h264_decoder"
2506 h264_vdpau_hwaccel_deps="vdpau"
2507 h264_vdpau_hwaccel_select="h264_decoder"
2508 h264_videotoolbox_hwaccel_deps="videotoolbox"
2509 h264_videotoolbox_hwaccel_select="h264_decoder"
2510 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2511 hevc_d3d11va_hwaccel_select="hevc_decoder"
2512 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2513 hevc_dxva2_hwaccel_select="hevc_decoder"
2514 hevc_qsv_hwaccel_deps="libmfx"
2515 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2516 hevc_vaapi_hwaccel_select="hevc_decoder"
2517 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2518 hevc_vdpau_hwaccel_select="hevc_decoder"
2519 mpeg_vdpau_decoder_deps="vdpau"
2520 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2521 mpeg_xvmc_hwaccel_deps="xvmc"
2522 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2523 mpeg1_vdpau_decoder_deps="vdpau"
2524 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2525 mpeg1_vdpau_hwaccel_deps="vdpau"
2526 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2527 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2528 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2529 mpeg1_xvmc_hwaccel_deps="xvmc"
2530 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2531 mpeg2_crystalhd_decoder_select="crystalhd"
2532 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2533 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2534 mpeg2_dxva2_hwaccel_deps="dxva2"
2535 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2536 mpeg2_mmal_decoder_deps="mmal"
2537 mpeg2_mmal_hwaccel_deps="mmal"
2538 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2539 mpeg2_qsv_hwaccel_deps="libmfx"
2540 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2541 mpeg2_vaapi_hwaccel_deps="vaapi"
2542 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2543 mpeg2_vdpau_hwaccel_deps="vdpau"
2544 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2545 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2546 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2547 mpeg2_xvmc_hwaccel_deps="xvmc"
2548 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2549 mpeg4_crystalhd_decoder_select="crystalhd"
2550 mpeg4_vaapi_hwaccel_deps="vaapi"
2551 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2552 mpeg4_vdpau_decoder_deps="vdpau"
2553 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2554 mpeg4_vdpau_hwaccel_deps="vdpau"
2555 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2556 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2557 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2558 msmpeg4_crystalhd_decoder_select="crystalhd"
2559 vc1_crystalhd_decoder_select="crystalhd"
2560 vc1_d3d11va_hwaccel_deps="d3d11va"
2561 vc1_d3d11va_hwaccel_select="vc1_decoder"
2562 vc1_dxva2_hwaccel_deps="dxva2"
2563 vc1_dxva2_hwaccel_select="vc1_decoder"
2564 vc1_vaapi_hwaccel_deps="vaapi"
2565 vc1_vaapi_hwaccel_select="vc1_decoder"
2566 vc1_vdpau_decoder_deps="vdpau"
2567 vc1_vdpau_decoder_select="vc1_decoder"
2568 vc1_vdpau_hwaccel_deps="vdpau"
2569 vc1_vdpau_hwaccel_select="vc1_decoder"
2570 vc1_mmal_decoder_deps="mmal"
2571 vc1_mmal_hwaccel_deps="mmal"
2572 vc1_mmal_decoder_select="vc1_decoder"
2573 vc1_qsv_hwaccel_deps="libmfx"
2574 vc1_qsv_hwaccel_select="qsvdec_vc1"
2575 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2576 vp9_d3d11va_hwaccel_select="vp9_decoder"
2577 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2578 vp9_dxva2_hwaccel_select="vp9_decoder"
2579 wmv3_crystalhd_decoder_select="crystalhd"
2580 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2581 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2582 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2583 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2584 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2585
2586 # parsers
2587 h264_parser_select="h264_decoder"
2588 hevc_parser_select="golomb"
2589 mpegvideo_parser_select="mpegvideo"
2590 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2591 vc1_parser_select="mpegvideo startcode vc1_decoder"
2592
2593 # bitstream_filters
2594 mjpeg2jpeg_bsf_select="jpegtables"
2595
2596 # external libraries
2597 chromaprint_muxer_deps="chromaprint"
2598 libaacplus_encoder_deps="libaacplus"
2599 libcelt_decoder_deps="libcelt"
2600 libdcadec_decoder_deps="libdcadec"
2601 libfaac_encoder_deps="libfaac"
2602 libfaac_encoder_select="audio_frame_queue"
2603 libfdk_aac_decoder_deps="libfdk_aac"
2604 libfdk_aac_encoder_deps="libfdk_aac"
2605 libfdk_aac_encoder_select="audio_frame_queue"
2606 libgme_demuxer_deps="libgme"
2607 libgsm_decoder_deps="libgsm"
2608 libgsm_encoder_deps="libgsm"
2609 libgsm_ms_decoder_deps="libgsm"
2610 libgsm_ms_encoder_deps="libgsm"
2611 libilbc_decoder_deps="libilbc"
2612 libilbc_encoder_deps="libilbc"
2613 libkvazaar_encoder_deps="libkvazaar"
2614 libmodplug_demuxer_deps="libmodplug"
2615 libmp3lame_encoder_deps="libmp3lame"
2616 libmp3lame_encoder_select="audio_frame_queue"
2617 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2618 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2619 libopencore_amrnb_encoder_select="audio_frame_queue"
2620 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2621 libopenh264_encoder_deps="libopenh264"
2622 libopenjpeg_decoder_deps="libopenjpeg"
2623 libopenjpeg_encoder_deps="libopenjpeg"
2624 libopus_decoder_deps="libopus"
2625 libopus_encoder_deps="libopus"
2626 libopus_encoder_select="audio_frame_queue"
2627 libquvi_demuxer_deps="libquvi"
2628 libschroedinger_decoder_deps="libschroedinger"
2629 libschroedinger_encoder_deps="libschroedinger"
2630 libshine_encoder_deps="libshine"
2631 libshine_encoder_select="audio_frame_queue"
2632 libspeex_decoder_deps="libspeex"
2633 libspeex_encoder_deps="libspeex"
2634 libspeex_encoder_select="audio_frame_queue"
2635 libstagefright_h264_decoder_deps="libstagefright_h264"
2636 libtheora_encoder_deps="libtheora"
2637 libtwolame_encoder_deps="libtwolame"
2638 libvo_aacenc_encoder_deps="libvo_aacenc"
2639 libvo_aacenc_encoder_select="audio_frame_queue"
2640 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2641 libvorbis_decoder_deps="libvorbis"
2642 libvorbis_encoder_deps="libvorbis"
2643 libvorbis_encoder_select="audio_frame_queue"
2644 libvpx_vp8_decoder_deps="libvpx"
2645 libvpx_vp8_encoder_deps="libvpx"
2646 libvpx_vp9_decoder_deps="libvpx"
2647 libvpx_vp9_encoder_deps="libvpx"
2648 libwavpack_encoder_deps="libwavpack"
2649 libwebp_encoder_deps="libwebp"
2650 libwebp_anim_encoder_deps="libwebp"
2651 libx262_encoder_deps="libx262"
2652 libx264_encoder_deps="libx264"
2653 libx264rgb_encoder_deps="libx264"
2654 libx264rgb_encoder_select="libx264_encoder"
2655 libx265_encoder_deps="libx265"
2656 libxavs_encoder_deps="libxavs"
2657 libxvid_encoder_deps="libxvid"
2658 libutvideo_decoder_deps="libutvideo"
2659 libutvideo_encoder_deps="libutvideo"
2660 libzvbi_teletext_decoder_deps="libzvbi"
2661 nvenc_encoder_deps="nvenc"
2662 nvenc_h264_encoder_deps="nvenc"
2663 nvenc_hevc_encoder_deps="nvenc"
2664
2665 # demuxers / muxers
2666 ac3_demuxer_select="ac3_parser"
2667 asf_demuxer_select="riffdec"
2668 asf_o_demuxer_select="riffdec"
2669 asf_muxer_select="riffenc"
2670 asf_stream_muxer_select="asf_muxer"
2671 avi_demuxer_select="riffdec exif"
2672 avi_muxer_select="riffenc"
2673 avisynth_demuxer_deps="avisynth"
2674 avisynth_demuxer_select="riffdec"
2675 caf_demuxer_select="riffdec"
2676 dash_muxer_select="mp4_muxer"
2677 dirac_demuxer_select="dirac_parser"
2678 dts_demuxer_select="dca_parser"
2679 dtshd_demuxer_select="dca_parser"
2680 dv_demuxer_select="dvprofile"
2681 dv_muxer_select="dvprofile"
2682 dxa_demuxer_select="riffdec"
2683 eac3_demuxer_select="ac3_parser"
2684 f4v_muxer_select="mov_muxer"
2685 flac_demuxer_select="flac_parser"
2686 hds_muxer_select="flv_muxer"
2687 hls_muxer_select="mpegts_muxer"
2688 image2_alias_pix_demuxer_select="image2_demuxer"
2689 image2_brender_pix_demuxer_select="image2_demuxer"
2690 ipod_muxer_select="mov_muxer"
2691 ismv_muxer_select="mov_muxer"
2692 libnut_demuxer_deps="libnut"
2693 libnut_muxer_deps="libnut"
2694 matroska_audio_muxer_select="matroska_muxer"
2695 matroska_demuxer_select="riffdec"
2696 matroska_demuxer_suggest="bzlib lzo zlib"
2697 matroska_muxer_select="riffenc"
2698 mmf_muxer_select="riffenc"
2699 mov_demuxer_select="riffdec"
2700 mov_demuxer_suggest="zlib"
2701 mov_muxer_select="riffenc rtpenc_chain"
2702 mp3_demuxer_select="mpegaudio_parser"
2703 mp4_muxer_select="mov_muxer"
2704 mpegts_muxer_select="adts_muxer latm_muxer"
2705 mpegtsraw_demuxer_select="mpegts_demuxer"
2706 mxf_d10_muxer_select="mxf_muxer"
2707 mxf_opatom_muxer_select="mxf_muxer"
2708 nut_muxer_select="riffenc"
2709 nuv_demuxer_select="riffdec"
2710 oga_muxer_select="ogg_muxer"
2711 ogg_demuxer_select="dirac_parse"
2712 opus_muxer_select="ogg_muxer"
2713 psp_muxer_select="mov_muxer"
2714 rtp_demuxer_select="sdp_demuxer"
2715 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2716 rtsp_demuxer_select="http_protocol rtpdec"
2717 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2718 sap_demuxer_select="sdp_demuxer"
2719 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2720 sdp_demuxer_select="rtpdec"
2721 smoothstreaming_muxer_select="ismv_muxer"
2722 spdif_muxer_select="aac_parser"
2723 spx_muxer_select="ogg_muxer"
2724 tak_demuxer_select="tak_parser"
2725 tg2_muxer_select="mov_muxer"
2726 tgp_muxer_select="mov_muxer"
2727 vobsub_demuxer_select="mpegps_demuxer"
2728 w64_demuxer_select="wav_demuxer"
2729 w64_muxer_select="wav_muxer"
2730 wav_demuxer_select="riffdec"
2731 wav_muxer_select="riffenc"
2732 webm_muxer_select="riffenc"
2733 wtv_demuxer_select="riffdec"
2734 wtv_muxer_select="riffenc"
2735 xmv_demuxer_select="riffdec"
2736 xwma_demuxer_select="riffdec"
2737
2738 # indevs / outdevs
2739 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2740 alsa_outdev_deps="alsa_asoundlib_h"
2741 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2742 avfoundation_indev_select="avfoundation"
2743 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2744 caca_outdev_deps="libcaca"
2745 decklink_outdev_deps="decklink pthreads"
2746 decklink_outdev_extralibs="-lstdc++"
2747 decklink_indev_deps="decklink pthreads"
2748 decklink_indev_extralibs="-lstdc++"
2749 dshow_indev_deps="IBaseFilter"
2750 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2751 dv1394_indev_deps="dv1394"
2752 dv1394_indev_select="dv_demuxer"
2753 fbdev_indev_deps="linux_fb_h"
2754 fbdev_outdev_deps="linux_fb_h"
2755 gdigrab_indev_deps="CreateDIBSection"
2756 gdigrab_indev_extralibs="-lgdi32"
2757 gdigrab_indev_select="bmp_decoder"
2758 iec61883_indev_deps="libiec61883"
2759 jack_indev_deps="jack_jack_h sem_timedwait"
2760 lavfi_indev_deps="avfilter"
2761 libcdio_indev_deps="libcdio"
2762 libdc1394_indev_deps="libdc1394"
2763 libv4l2_indev_deps="libv4l2"
2764 openal_indev_deps="openal"
2765 opengl_outdev_deps="opengl"
2766 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2767 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2768 pulse_indev_deps="libpulse"
2769 pulse_outdev_deps="libpulse"
2770 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2771 qtkit_indev_select="qtkit"
2772 sdl_outdev_deps="sdl"
2773 sndio_indev_deps="sndio_h"
2774 sndio_outdev_deps="sndio_h"
2775 v4l_indev_deps="linux_videodev_h"
2776 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2777 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2778 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2779 vfwcap_indev_extralibs="-lavicap32"
2780 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2781 xv_outdev_extralibs="-lXv -lX11 -lXext"
2782 x11grab_indev_deps="x11grab"
2783 x11grab_xcb_indev_deps="libxcb"
2784
2785 # protocols
2786 async_protocol_deps="threads"
2787 bluray_protocol_deps="libbluray"
2788 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2789 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2790 ffrtmpcrypt_protocol_select="tcp_protocol"
2791 ffrtmphttp_protocol_deps="!librtmp_protocol"
2792 ffrtmphttp_protocol_select="http_protocol"
2793 ftp_protocol_select="tcp_protocol"
2794 gopher_protocol_select="network"
2795 http_protocol_select="tcp_protocol"
2796 httpproxy_protocol_select="tcp_protocol"
2797 https_protocol_select="tls_protocol"
2798 icecast_protocol_select="http_protocol"
2799 librtmp_protocol_deps="librtmp"
2800 librtmpe_protocol_deps="librtmp"
2801 librtmps_protocol_deps="librtmp"
2802 librtmpt_protocol_deps="librtmp"
2803 librtmpte_protocol_deps="librtmp"
2804 libsmbclient_protocol_deps="libsmbclient gplv3"
2805 libssh_protocol_deps="libssh"
2806 mmsh_protocol_select="http_protocol"
2807 mmst_protocol_select="network"
2808 rtmp_protocol_deps="!librtmp_protocol"
2809 rtmp_protocol_select="tcp_protocol"
2810 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2811 rtmps_protocol_deps="!librtmp_protocol"
2812 rtmps_protocol_select="tls_protocol"
2813 rtmpt_protocol_select="ffrtmphttp_protocol"
2814 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2815 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2816 rtp_protocol_select="udp_protocol"
2817 sctp_protocol_deps="struct_sctp_event_subscribe"
2818 sctp_protocol_select="network"
2819 srtp_protocol_select="rtp_protocol"
2820 tcp_protocol_select="network"
2821 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2822 tls_gnutls_protocol_select="tcp_protocol"
2823 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2824 tls_openssl_protocol_select="tcp_protocol"
2825 tls_schannel_protocol_deps="schannel"
2826 tls_schannel_protocol_select="tcp_protocol"
2827 tls_securetransport_protocol_deps="securetransport"
2828 tls_securetransport_protocol_select="tcp_protocol"
2829 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2830 udp_protocol_select="network"
2831 udplite_protocol_select="network"
2832 unix_protocol_deps="sys_un_h"
2833 unix_protocol_select="network"
2834
2835 # filters
2836 aemphasis_filter_deps="cabs cexp"
2837 amovie_filter_deps="avcodec avformat"
2838 aresample_filter_deps="swresample"
2839 ass_filter_deps="libass"
2840 asyncts_filter_deps="avresample"
2841 atempo_filter_deps="avcodec"
2842 atempo_filter_select="rdft"
2843 azmq_filter_deps="libzmq"
2844 blackframe_filter_deps="gpl"
2845 boxblur_filter_deps="gpl"
2846 bs2b_filter_deps="libbs2b"
2847 colormatrix_filter_deps="gpl"
2848 cover_rect_filter_deps="avcodec avformat gpl"
2849 cropdetect_filter_deps="gpl"
2850 delogo_filter_deps="gpl"
2851 deshake_filter_select="pixelutils"
2852 drawtext_filter_deps="libfreetype"
2853 dynaudnorm_filter_deps="copysign erf"
2854 ebur128_filter_deps="gpl"
2855 eq_filter_deps="gpl"
2856 fftfilt_filter_deps="avcodec"
2857 fftfilt_filter_select="rdft"
2858 flite_filter_deps="libflite"
2859 find_rect_filter_deps="avcodec avformat gpl"
2860 frei0r_filter_deps="frei0r dlopen"
2861 frei0r_src_filter_deps="frei0r dlopen"
2862 fspp_filter_deps="gpl"
2863 geq_filter_deps="gpl"
2864 histeq_filter_deps="gpl"
2865 hqdn3d_filter_deps="gpl"
2866 interlace_filter_deps="gpl"
2867 kerndeint_filter_deps="gpl"
2868 ladspa_filter_deps="ladspa dlopen"
2869 mcdeint_filter_deps="avcodec gpl"
2870 movie_filter_deps="avcodec avformat"
2871 mpdecimate_filter_deps="gpl"
2872 mpdecimate_filter_select="pixelutils"
2873 mptestsrc_filter_deps="gpl"
2874 negate_filter_deps="lut_filter"
2875 perspective_filter_deps="gpl"
2876 pp7_filter_deps="gpl"
2877 ocr_filter_deps="libtesseract"
2878 ocv_filter_deps="libopencv"
2879 owdenoise_filter_deps="gpl"
2880 pan_filter_deps="swresample"
2881 phase_filter_deps="gpl"
2882 pp_filter_deps="gpl postproc"
2883 pullup_filter_deps="gpl"
2884 removelogo_filter_deps="avcodec avformat swscale"
2885 repeatfields_filter_deps="gpl"
2886 resample_filter_deps="avresample"
2887 rubberband_filter_deps="librubberband"
2888 sab_filter_deps="gpl swscale"
2889 scale_filter_deps="swscale"
2890 scale2ref_filter_deps="swscale"
2891 select_filter_select="pixelutils"
2892 smartblur_filter_deps="gpl swscale"
2893 showcqt_filter_deps="avcodec avformat swscale"
2894 showcqt_filter_select="fft"
2895 showfreqs_filter_deps="avcodec"
2896 showfreqs_filter_select="fft"
2897 showspectrum_filter_deps="avcodec"
2898 showspectrum_filter_select="rdft"
2899 sofalizer_filter_deps="netcdf avcodec"
2900 sofalizer_filter_select="fft"
2901 spp_filter_deps="gpl avcodec"
2902 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2903 stereo3d_filter_deps="gpl"
2904 subtitles_filter_deps="avformat avcodec libass"
2905 super2xsai_filter_deps="gpl"
2906 tinterlace_filter_deps="gpl"
2907 vidstabdetect_filter_deps="libvidstab"
2908 vidstabtransform_filter_deps="libvidstab"
2909 pixfmts_super2xsai_test_deps="super2xsai_filter"
2910 tinterlace_merge_test_deps="tinterlace_filter"
2911 tinterlace_pad_test_deps="tinterlace_filter"
2912 uspp_filter_deps="gpl avcodec"
2913 zmq_filter_deps="libzmq"
2914 zoompan_filter_deps="swscale"
2915 zscale_filter_deps="libzimg"
2916
2917 # examples
2918 avio_reading="avformat avcodec avutil"
2919 avio_dir_cmd="avformat avutil"
2920 avcodec_example_deps="avcodec avutil"
2921 decoding_encoding_example_deps="avcodec avformat avutil"
2922 demuxing_decoding_example_deps="avcodec avformat avutil"
2923 extract_mvs_example_deps="avcodec avformat avutil"
2924 filter_audio_example_deps="avfilter avutil"
2925 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2926 filtering_video_example_deps="avfilter avcodec avformat avutil"
2927 metadata_example_deps="avformat avutil"
2928 muxing_example_deps="avcodec avformat avutil swscale"
2929 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2930 remuxing_example_deps="avcodec avformat avutil"
2931 resampling_audio_example_deps="avutil swresample"
2932 scaling_video_example_deps="avutil swscale"
2933 transcode_aac_example_deps="avcodec avformat swresample"
2934 transcoding_example_deps="avfilter avcodec avformat avutil"
2935
2936 # libraries, in linking order
2937 avcodec_deps="avutil"
2938 avdevice_deps="avformat avcodec avutil"
2939 avfilter_deps="avutil"
2940 avformat_deps="avcodec avutil"
2941 avresample_deps="avutil"
2942 postproc_deps="avutil gpl"
2943 swresample_deps="avutil"
2944 swscale_deps="avutil"
2945
2946 # programs
2947 ffmpeg_deps="avcodec avfilter avformat swresample"
2948 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2949                null_filter
2950                setpts_filter trim_filter"
2951 ffplay_deps="avcodec avformat swscale swresample sdl"
2952 ffplay_libs='$sdl_libs'
2953 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2954 ffprobe_deps="avcodec avformat"
2955 ffserver_deps="avformat fork sarestart"
2956 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2957
2958 # documentation
2959 podpages_deps="perl"
2960 manpages_deps="perl pod2man"
2961 htmlpages_deps="perl"
2962 htmlpages_deps_any="makeinfo_html texi2html"
2963 txtpages_deps="perl makeinfo"
2964 doc_deps_any="manpages htmlpages podpages txtpages"
2965
2966 # default parameters
2967
2968 logfile="config.log"
2969
2970 # installation paths
2971 prefix_default="/usr/local"
2972 bindir_default='${prefix}/bin'
2973 datadir_default='${prefix}/share/ffmpeg'
2974 docdir_default='${prefix}/share/doc/ffmpeg'
2975 incdir_default='${prefix}/include'
2976 libdir_default='${prefix}/lib'
2977 mandir_default='${prefix}/share/man'
2978
2979 # toolchain
2980 ar_default="ar"
2981 cc_default="gcc"
2982 cxx_default="g++"
2983 host_cc_default="gcc"
2984 cp_f="cp -f"
2985 doxygen_default="doxygen"
2986 install="install"
2987 ln_s="ln -s -f"
2988 nm_default="nm -g"
2989 objformat="elf"
2990 pkg_config_default=pkg-config
2991 ranlib_default="ranlib"
2992 strip_default="strip"
2993 yasmexe_default="yasm"
2994 windres_default="windres"
2995
2996 # OS
2997 target_os_default=$(tolower $(uname -s))
2998 host_os=$target_os_default
2999
3000 # machine
3001 if test "$target_os_default" = aix; then
3002     arch_default=$(uname -p)
3003     strip_default="strip -X32_64"
3004 else
3005     arch_default=$(uname -m)
3006 fi
3007 cpu="generic"
3008 intrinsics="none"
3009
3010 # configurable options
3011 enable $PROGRAM_LIST
3012 enable $DOCUMENT_LIST
3013 enable $EXAMPLE_LIST
3014 enable $(filter_out avresample $LIBRARY_LIST)
3015 enable stripping
3016
3017 enable asm
3018 enable debug
3019 enable doc
3020 enable faan faandct faanidct
3021 enable optimizations
3022 enable runtime_cpudetect
3023 enable safe_bitstream_reader
3024 enable static
3025 enable swscale_alpha
3026 enable valgrind_backtrace
3027
3028 sws_max_filter_size_default=256
3029 set_default sws_max_filter_size
3030
3031 # Enable hwaccels by default.
3032 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3033 enable xlib
3034
3035 # build settings
3036 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3037 LIBPREF="lib"
3038 LIBSUF=".a"
3039 FULLNAME='$(NAME)$(BUILDSUF)'
3040 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3041 SLIBPREF="lib"
3042 SLIBSUF=".so"
3043 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3044 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3045 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3046 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3047 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3048 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3049
3050 asflags_filter=echo
3051 cflags_filter=echo
3052 ldflags_filter=echo
3053
3054 AS_C='-c'
3055 AS_O='-o $@'
3056 CC_C='-c'
3057 CC_E='-E -o $@'
3058 CC_O='-o $@'
3059 CXX_C='-c'
3060 CXX_O='-o $@'
3061 OBJCC_C='-c'
3062 OBJCC_E='-E -o $@'
3063 OBJCC_O='-o $@'
3064 LD_O='-o $@'
3065 LD_LIB='-l%'
3066 LD_PATH='-L'
3067 HOSTCC_C='-c'
3068 HOSTCC_E='-E -o $@'
3069 HOSTCC_O='-o $@'
3070 HOSTLD_O='-o $@'
3071
3072 host_libs='-lm'
3073 host_cflags_filter=echo
3074 host_ldflags_filter=echo
3075
3076 target_path='$(CURDIR)'
3077
3078 # since the object filename is not given with the -MM flag, the compiler
3079 # is only able to print the basename, and we must add the path ourselves
3080 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3081 DEPFLAGS='-MM'
3082
3083 # find source path
3084 if test -f configure; then
3085     source_path=.
3086 else
3087     source_path=$(cd $(dirname "$0"); pwd)
3088     case "$source_path" in
3089         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3090     esac
3091     test -e "$source_path/config.h" &&
3092         die "Out of tree builds are impossible with config.h in source dir."
3093 fi
3094
3095 for v in "$@"; do
3096     r=${v#*=}
3097     l=${v%"$r"}
3098     r=$(sh_quote "$r")
3099     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3100 done
3101
3102 find_things(){
3103     thing=$1
3104     pattern=$2
3105     file=$source_path/$3
3106     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3107 }
3108
3109 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3110 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3111 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3112 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3113 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3114 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3115 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3116 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3117 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3118 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3119 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3120
3121 ALL_COMPONENTS="
3122     $BSF_LIST
3123     $DECODER_LIST
3124     $DEMUXER_LIST
3125     $ENCODER_LIST
3126     $FILTER_LIST
3127     $HWACCEL_LIST
3128     $INDEV_LIST
3129     $MUXER_LIST
3130     $OUTDEV_LIST
3131     $PARSER_LIST
3132     $PROTOCOL_LIST
3133 "
3134
3135 for n in $COMPONENT_LIST; do
3136     v=$(toupper ${n%s})_LIST
3137     eval enable \$$v
3138     eval ${n}_if_any="\$$v"
3139 done
3140
3141 enable $ARCH_EXT_LIST
3142
3143 die_unknown(){
3144     echo "Unknown option \"$1\"."
3145     echo "See $0 --help for available options."
3146     exit 1
3147 }
3148
3149 print_in_columns() {
3150     cols=$(expr $ncols / 24)
3151     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3152 }
3153
3154 show_list() {
3155     suffix=_$1
3156     shift
3157     echo $* | sed s/$suffix//g | print_in_columns
3158     exit 0
3159 }
3160
3161 rand_list(){
3162     IFS=', '
3163     set -- $*
3164     unset IFS
3165     for thing; do
3166         comp=${thing%:*}
3167         prob=${thing#$comp}
3168         prob=${prob#:}
3169         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3170         echo "prob ${prob:-0.5}"
3171         printf '%s\n' $comp
3172     done
3173 }
3174
3175 do_random(){
3176     action=$1
3177     shift
3178     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3179     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3180 }
3181
3182 for opt do
3183     optval="${opt#*=}"
3184     case "$opt" in
3185         --extra-ldflags=*)
3186             add_ldflags $optval
3187         ;;
3188         --extra-ldexeflags=*)
3189             add_ldexeflags $optval
3190         ;;
3191         --extra-ldlibflags=*)
3192             add_ldlibflags $optval
3193         ;;
3194         --extra-libs=*)
3195             add_extralibs $optval
3196         ;;
3197         --disable-devices)
3198             disable $INDEV_LIST $OUTDEV_LIST
3199         ;;
3200         --enable-debug=*)
3201             debuglevel="$optval"
3202         ;;
3203         --disable-programs)
3204             disable $PROGRAM_LIST
3205         ;;
3206         --disable-everything)
3207             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3208         ;;
3209         --disable-all)
3210             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3211             disable $LIBRARY_LIST $PROGRAM_LIST doc
3212             enable avutil
3213         ;;
3214         --enable-random|--disable-random)
3215             action=${opt%%-random}
3216             do_random ${action#--} $COMPONENT_LIST
3217         ;;
3218         --enable-random=*|--disable-random=*)
3219             action=${opt%%-random=*}
3220             do_random ${action#--} $optval
3221         ;;
3222         --enable-*=*|--disable-*=*)
3223             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3224             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3225             eval list=\$$(toupper $thing)_LIST
3226             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3227             list=$(filter "$name" $list)
3228             [ "$list" = "" ] && warn "Option $opt did not match anything"
3229             $action $list
3230         ;;
3231         --enable-?*|--disable-?*)
3232             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3233             if is_in $option $COMPONENT_LIST; then
3234                 test $action = disable && action=unset
3235                 eval $action \$$(toupper ${option%s})_LIST
3236             elif is_in $option $CMDLINE_SELECT; then
3237                 $action $option
3238             else
3239                 die_unknown $opt
3240             fi
3241         ;;
3242         --list-*)
3243             NAME="${opt#--list-}"
3244             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3245             NAME=${NAME%s}
3246             eval show_list $NAME \$$(toupper $NAME)_LIST
3247         ;;
3248         --help|-h) show_help
3249         ;;
3250         --fatal-warnings) enable fatal_warnings
3251         ;;
3252         *)
3253             optname="${opt%%=*}"
3254             optname="${optname#--}"
3255             optname=$(echo "$optname" | sed 's/-/_/g')
3256             if is_in $optname $CMDLINE_SET; then
3257                 eval $optname='$optval'
3258             elif is_in $optname $CMDLINE_APPEND; then
3259                 append $optname "$optval"
3260             else
3261                 die_unknown $opt
3262             fi
3263         ;;
3264     esac
3265 done
3266
3267 for e in $env; do
3268     eval "export $e"
3269 done
3270
3271 disabled logging && logfile=/dev/null
3272
3273 # Disable all the library-specific components if the library itself
3274 # is disabled, see AVCODEC_LIST and following _LIST variables.
3275
3276 disable_components(){
3277     disabled ${1} && disable $(
3278         eval components="\$$(toupper ${1})_COMPONENTS"
3279         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3280     )
3281 }
3282
3283 map 'disable_components $v' $LIBRARY_LIST
3284
3285 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3286 set >> $logfile
3287
3288 test -n "$valgrind" && toolchain="valgrind-memcheck"
3289
3290 case "$toolchain" in
3291     clang-asan)
3292         cc_default="clang"
3293         add_cflags  -fsanitize=address
3294         add_ldflags -fsanitize=address
3295     ;;
3296     clang-tsan)
3297         cc_default="clang"
3298         add_cflags  -fsanitize=thread -pie
3299         add_ldflags -fsanitize=thread -pie
3300     ;;
3301     clang-usan)
3302         cc_default="clang"
3303         add_cflags  -fsanitize=undefined
3304         add_ldflags -fsanitize=undefined
3305     ;;
3306     gcc-asan)
3307         cc_default="gcc"
3308         add_cflags  -fsanitize=address
3309         add_ldflags -fsanitize=address
3310     ;;
3311     gcc-tsan)
3312         cc_default="gcc"
3313         add_cflags  -fsanitize=thread -pie -fPIC
3314         add_ldflags -fsanitize=thread -pie -fPIC
3315     ;;
3316     gcc-usan)
3317         cc_default="gcc"
3318         add_cflags  -fsanitize=undefined
3319         add_ldflags -fsanitize=undefined
3320     ;;
3321     valgrind-massif)
3322         target_exec_default=${valgrind:-"valgrind"}
3323         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"
3324     ;;
3325     valgrind-memcheck)
3326         target_exec_default=${valgrind:-"valgrind"}
3327         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3328     ;;
3329     msvc)
3330         # Check whether the current MSVC version needs the C99 converter.
3331         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3332         # support enough of C99 to build ffmpeg. Default to the new
3333         # behaviour if the regexp was unable to match anything, since this
3334         # successfully parses the version number of existing supported
3335         # versions that require the converter (MSVC 2010 and 2012).
3336         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3337         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3338             cc_default="cl"
3339         else
3340             cc_default="c99wrap cl"
3341         fi
3342         ld_default="$source_path/compat/windows/mslink"
3343         nm_default="dumpbin -symbols"
3344         ar_default="lib"
3345         case "$arch" in
3346         arm*)
3347             as_default="armasm"
3348             ;;
3349         esac
3350         target_os_default="win32"
3351         # Use a relative path for TMPDIR. This makes sure all the
3352         # ffconf temp files are written with a relative path, avoiding
3353         # issues with msys/win32 path conversion for MSVC parameters
3354         # such as -Fo<file> or -out:<file>.
3355         TMPDIR=.
3356     ;;
3357     icl)
3358         cc_default="icl"
3359         ld_default="xilink"
3360         nm_default="dumpbin -symbols"
3361         ar_default="xilib"
3362         target_os_default="win32"
3363         TMPDIR=.
3364     ;;
3365     gcov)
3366         add_cflags  -fprofile-arcs -ftest-coverage
3367         add_ldflags -fprofile-arcs -ftest-coverage
3368     ;;
3369     hardened)
3370         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3371         add_cflags   -fno-strict-overflow -fstack-protector-all
3372         add_ldflags  -Wl,-z,relro -Wl,-z,now
3373     ;;
3374     ?*)
3375         die "Unknown toolchain $toolchain"
3376     ;;
3377 esac
3378
3379 test -n "$cross_prefix" && enable cross_compile
3380
3381 if enabled cross_compile; then
3382     test -n "$arch" && test -n "$target_os" ||
3383         die "Must specify target arch and OS when cross-compiling"
3384 fi
3385
3386 ar_default="${cross_prefix}${ar_default}"
3387 cc_default="${cross_prefix}${cc_default}"
3388 cxx_default="${cross_prefix}${cxx_default}"
3389 nm_default="${cross_prefix}${nm_default}"
3390 pkg_config_default="${cross_prefix}${pkg_config_default}"
3391 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3392     ranlib_default="${cross_prefix}${ranlib_default} -D"
3393 else
3394     ranlib_default="${cross_prefix}${ranlib_default}"
3395 fi
3396 strip_default="${cross_prefix}${strip_default}"
3397 windres_default="${cross_prefix}${windres_default}"
3398
3399 sysinclude_default="${sysroot}/usr/include"
3400
3401 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3402     target_exec target_os yasmexe
3403 enabled cross_compile || host_cc_default=$cc
3404 set_default host_cc
3405
3406 pkg_config_fail_message=""
3407 if ! $pkg_config --version >/dev/null 2>&1; then
3408     warn "$pkg_config not found, library detection may fail."
3409     pkg_config=false
3410 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3411     pkg_config_fail_message="
3412 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3413 fi
3414
3415 if test $doxygen != $doxygen_default && \
3416   ! $doxygen --version >/dev/null 2>&1; then
3417     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3418 fi
3419
3420 exesuf() {
3421     case $1 in
3422         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3423     esac
3424 }
3425
3426 EXESUF=$(exesuf $target_os)
3427 HOSTEXESUF=$(exesuf $host_os)
3428
3429 # set temporary file name
3430 : ${TMPDIR:=$TEMPDIR}
3431 : ${TMPDIR:=$TMP}
3432 : ${TMPDIR:=/tmp}
3433
3434 if [ -n "$tempprefix" ] ; then
3435     mktemp(){
3436         echo $tempprefix.${HOSTNAME}.${UID}
3437     }
3438 elif ! check_cmd mktemp -u XXXXXX; then
3439     # simple replacement for missing mktemp
3440     # NOT SAFE FOR GENERAL USE
3441     mktemp(){
3442         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3443     }
3444 fi
3445
3446 tmpfile(){
3447     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3448         (set -C; exec > $tmp) 2>/dev/null ||
3449         die "Unable to create temporary file in $TMPDIR."
3450     append TMPFILES $tmp
3451     eval $1=$tmp
3452 }
3453
3454 trap 'rm -f -- $TMPFILES' EXIT
3455
3456 tmpfile TMPASM .asm
3457 tmpfile TMPC   .c
3458 tmpfile TMPCPP .cpp
3459 tmpfile TMPE   $EXESUF
3460 tmpfile TMPH   .h
3461 tmpfile TMPM   .m
3462 tmpfile TMPO   .o
3463 tmpfile TMPS   .S
3464 tmpfile TMPSH  .sh
3465 tmpfile TMPV   .ver
3466
3467 unset -f mktemp
3468
3469 chmod +x $TMPE
3470
3471 # make sure we can execute files in $TMPDIR
3472 cat > $TMPSH 2>> $logfile <<EOF
3473 #! /bin/sh
3474 EOF
3475 chmod +x $TMPSH >> $logfile 2>&1
3476 if ! $TMPSH >> $logfile 2>&1; then
3477     cat <<EOF
3478 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3479 variable to another directory and make sure that it is not mounted noexec.
3480 EOF
3481     die "Sanity test failed."
3482 fi
3483
3484 armasm_flags(){
3485     for flag; do
3486         case $flag in
3487             # Filter out MSVC cl.exe options from cflags that shouldn't
3488             # be passed to gas-preprocessor
3489             -M[TD]*)                                            ;;
3490             *)                  echo $flag                      ;;
3491         esac
3492    done
3493 }
3494
3495 ccc_flags(){
3496     for flag; do
3497         case $flag in
3498             -std=c99)           echo -c99                       ;;
3499             -mcpu=*)            echo -arch ${flag#*=}           ;;
3500             -mieee)             echo -ieee                      ;;
3501             -O*|-fast)          echo $flag                      ;;
3502             -fno-math-errno)    echo -assume nomath_errno       ;;
3503             -g)                 echo -g3                        ;;
3504             -Wall)              echo -msg_enable level2         ;;
3505             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3506             -Wl,*)              echo $flag                      ;;
3507             -f*|-W*)                                            ;;
3508             *)                  echo $flag                      ;;
3509         esac
3510    done
3511 }
3512
3513 cparser_flags(){
3514     for flag; do
3515         case $flag in
3516             -Wno-switch)             echo -Wno-switch-enum ;;
3517             -Wno-format-zero-length) ;;
3518             -Wdisabled-optimization) ;;
3519             -Wno-pointer-sign)       echo -Wno-other ;;
3520             *)                       echo $flag ;;
3521         esac
3522     done
3523 }
3524
3525 msvc_common_flags(){
3526     for flag; do
3527         case $flag in
3528             # In addition to specifying certain flags under the compiler
3529             # specific filters, they must be specified here as well or else the
3530             # generic catch all at the bottom will print the original flag.
3531             -Wall)                ;;
3532             -std=c99)             ;;
3533             # Common flags
3534             -fomit-frame-pointer) ;;
3535             -g)                   echo -Z7 ;;
3536             -fno-math-errno)      ;;
3537             -fno-common)          ;;
3538             -fno-signed-zeros)    ;;
3539             -fPIC)                ;;
3540             -mthumb)              ;;
3541             -march=*)             ;;
3542             -lz)                  echo zlib.lib ;;
3543             -lavifil32)           echo vfw32.lib ;;
3544             -lavicap32)           echo vfw32.lib user32.lib ;;
3545             -l*)                  echo ${flag#-l}.lib ;;
3546             -LARGEADDRESSAWARE)   echo $flag ;;
3547             -L*)                  echo -libpath:${flag#-L} ;;
3548             *)                    echo $flag ;;
3549         esac
3550     done
3551 }
3552
3553 msvc_flags(){
3554     msvc_common_flags "$@"
3555     for flag; do
3556         case $flag in
3557             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3558                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3559                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3560                                        -wd4307 \
3561                                        -wd4273 -wd4554 -wd4701 ;;
3562         esac
3563     done
3564 }
3565
3566 icl_flags(){
3567     msvc_common_flags "$@"
3568     for flag; do
3569         case $flag in
3570             # Despite what Intel's documentation says -Wall, which is supported
3571             # on Windows, does enable remarks so disable them here.
3572             -Wall)                echo $flag -Qdiag-disable:remark ;;
3573             -std=c99)             echo -Qstd=c99 ;;
3574             -flto)                echo -ipo ;;
3575         esac
3576     done
3577 }
3578
3579 icc_flags(){
3580     for flag; do
3581         case $flag in
3582             -flto)                echo -ipo ;;
3583             *)                    echo $flag ;;
3584         esac
3585     done
3586 }
3587
3588 pgi_flags(){
3589     for flag; do
3590         case $flag in
3591             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3592             -fomit-frame-pointer) echo -Mnoframe ;;
3593             -g)                   echo -gopt ;;
3594             *)                    echo $flag ;;
3595         esac
3596     done
3597 }
3598
3599 suncc_flags(){
3600     for flag; do
3601         case $flag in
3602             -march=*|-mcpu=*)
3603                 case "${flag#*=}" in
3604                     native)                   echo -xtarget=native       ;;
3605                     v9|niagara)               echo -xarch=sparc          ;;
3606                     ultrasparc)               echo -xarch=sparcvis       ;;
3607                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3608                     i586|pentium)             echo -xchip=pentium        ;;
3609                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3610                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3611                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3612                     pentium4*)          echo -xtarget=pentium4           ;;
3613                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3614                     *-sse3)             echo -xarch=sse3                 ;;
3615                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3616                     bonnell)                   echo -xarch=ssse3         ;;
3617                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3618                     westmere)                  echo -xtarget=westmere    ;;
3619                     silvermont)                echo -xarch=sse4_2        ;;
3620                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3621                     core-avx*|ivybridge|haswell|broadwell)
3622                                                echo -xarch=avx           ;;
3623                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3624                     btver1)                    echo -xarch=amdsse4a      ;;
3625                     btver2|bdver*)             echo -xarch=avx           ;;
3626                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3627                     k8|opteron|athlon64|athlon-fx)
3628                                                echo -xarch=sse2a         ;;
3629                     athlon*)                   echo -xarch=pentium_proa  ;;
3630                 esac
3631                 ;;
3632             -std=c99)             echo -xc99              ;;
3633             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3634             -fPIC)                echo -KPIC -xcode=pic32 ;;
3635             -W*,*)                echo $flag              ;;
3636             -f*-*|-W*|-mimpure-text)                      ;;
3637             -shared)              echo -G                 ;;
3638             *)                    echo $flag              ;;
3639         esac
3640     done
3641 }
3642
3643 tms470_flags(){
3644     for flag; do
3645         case $flag in
3646             -march=*|-mcpu=*)
3647                 case "${flag#*=}" in
3648                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3649                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3650                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3651                     armv6*|arm11*)          echo -mv=6   ;;
3652                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3653                                             echo -mv=5e  ;;
3654                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3655                 esac
3656                 ;;
3657             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3658             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3659             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3660             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3661             -msoft-float)   echo --float_support=vfplib       ;;
3662             -O[0-3]|-mf=*)  echo $flag                        ;;
3663             -g)             echo -g -mn                       ;;
3664             -pds=*)         echo $flag                        ;;
3665             -D*|-I*)        echo $flag                        ;;
3666             --gcc|--abi=*)  echo $flag                        ;;
3667             -me)            echo $flag                        ;;
3668         esac
3669     done
3670 }
3671
3672 probe_cc(){
3673     pfx=$1
3674     _cc=$2
3675     first=$3
3676
3677     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3678     unset _ld_o _ldflags _ld_lib _ld_path
3679     unset _depflags _DEPCMD _DEPFLAGS
3680     _flags_filter=echo
3681
3682     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3683         true # no-op to avoid reading stdin in following checks
3684     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3685         _type=llvm_gcc
3686         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3687         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3688         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3689         _cflags_speed='-O3'
3690         _cflags_size='-Os'
3691     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3692         _type=gcc
3693         gcc_version=$($_cc --version | head -n1)
3694         gcc_basever=$($_cc -dumpversion)
3695         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3696         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3697         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3698         case $gcc_basever in
3699             2*) ;;
3700             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3701         esac
3702         if [ "$first" = true ]; then
3703             case $gcc_basever in
3704                 4.2*)
3705                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3706             esac
3707         fi
3708         _cflags_speed='-O3'
3709         _cflags_size='-Os'
3710     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3711         _type=icc
3712         _ident=$($_cc --version | head -n1)
3713         _depflags='-MMD'
3714         _cflags_speed='-O3'
3715         _cflags_size='-Os'
3716         _cflags_noopt='-O1'
3717         _flags_filter=icc_flags
3718     elif $_cc -v 2>&1 | grep -q xlc; then
3719         _type=xlc
3720         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3721         _cflags_speed='-O5'
3722         _cflags_size='-O5 -qcompact'
3723     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3724         _type=ccc
3725         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3726         _DEPFLAGS='-M'
3727         _cflags_speed='-fast'
3728         _cflags_size='-O1'
3729         _flags_filter=ccc_flags
3730     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3731         test -d "$sysroot" || die "No valid sysroot specified."
3732         _type=armcc
3733         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3734         armcc_conf="$PWD/armcc.conf"
3735         $_cc --arm_linux_configure                 \
3736              --arm_linux_config_file="$armcc_conf" \
3737              --configure_sysroot="$sysroot"        \
3738              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3739              die "Error creating armcc configuration file."
3740         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3741         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3742         as_default="${cross_prefix}gcc"
3743         _depflags='-MMD'
3744         _cflags_speed='-O3'
3745         _cflags_size='-Os'
3746     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3747         _type=tms470
3748         _ident=$($_cc -version | head -n1 | tr -s ' ')
3749         _flags='--gcc --abi=eabi -me'
3750         _cc_e='-ppl -fe=$@'
3751         _cc_o='-fe=$@'
3752         _depflags='-ppa -ppd=$(@:.o=.d)'
3753         _cflags_speed='-O3 -mf=5'
3754         _cflags_size='-O3 -mf=2'
3755         _flags_filter=tms470_flags
3756     elif $_cc -v 2>&1 | grep -q clang; then
3757         _type=clang
3758         _ident=$($_cc --version 2>/dev/null | head -n1)
3759         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3760         _cflags_speed='-O3'
3761         _cflags_size='-Os'
3762     elif $_cc -V 2>&1 | grep -q Sun; then
3763         _type=suncc
3764         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3765         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3766         _DEPFLAGS='-xM1 -xc99'
3767         _ldflags='-std=c99'
3768         _cflags_speed='-O5'
3769         _cflags_size='-O5 -xspace'
3770         _flags_filter=suncc_flags
3771     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3772         _type=pathscale
3773         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3774         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3775         _cflags_speed='-O2'
3776         _cflags_size='-Os'
3777         _flags_filter='filter_out -Wdisabled-optimization'
3778     elif $_cc -v 2>&1 | grep -q Open64; then
3779         _type=open64
3780         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3781         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3782         _cflags_speed='-O2'
3783         _cflags_size='-Os'
3784         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3785     elif $_cc -V 2>&1 | grep -q Portland; then
3786         _type=pgi
3787         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3788         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3789         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3790         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3791         _cflags_noopt="-O"
3792         _flags_filter=pgi_flags
3793     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3794         _type=armasm
3795         _ident=$($_cc | head -n1)
3796         # 4509: "This form of conditional instruction is deprecated"
3797         _flags="-nologo -ignore 4509"
3798         _flags_filter=armasm_flags
3799     elif $_cc 2>&1 | grep -q Intel; then
3800         _type=icl
3801         _ident=$($_cc 2>&1 | head -n1)
3802         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3803         # Not only is O3 broken on 13.x+ but it is slower on all previous
3804         # versions (tested) as well.
3805         _cflags_speed="-O2"
3806         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3807         if $_cc 2>&1 | grep -q Linker; then
3808             _ld_o='-out:$@'
3809         else
3810             _ld_o='-Fe$@'
3811         fi
3812         _cc_o='-Fo$@'
3813         _cc_e='-P'
3814         _flags_filter=icl_flags
3815         _ld_lib='lib%.a'
3816         _ld_path='-libpath:'
3817         # -Qdiag-error to make icl error when seeing certain unknown arguments
3818         _flags='-nologo -Qdiag-error:4044,10157'
3819         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3820         # with MSVC which enables it by default.
3821         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3822         disable stripping
3823     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3824         _type=msvc
3825         _ident=$($_cc 2>&1 | head -n1)
3826         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3827         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3828         _cflags_speed="-O2"
3829         _cflags_size="-O1"
3830         if $_cc -nologo- 2>&1 | grep -q Linker; then
3831             _ld_o='-out:$@'
3832         else
3833             _ld_o='-Fe$@'
3834         fi
3835         _cc_o='-Fo$@'
3836         _cc_e='-P -Fi$@'
3837         _flags_filter=msvc_flags
3838         _ld_lib='lib%.a'
3839         _ld_path='-libpath:'
3840         _flags='-nologo'
3841         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3842         disable stripping
3843     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3844         _type=cparser
3845         _ident=$($_cc --version | head -n1)
3846         _depflags='-MMD'
3847         _cflags_speed='-O4'
3848         _cflags_size='-O2'
3849         _flags_filter=cparser_flags
3850     fi
3851
3852     eval ${pfx}_type=\$_type
3853     eval ${pfx}_ident=\$_ident
3854 }
3855
3856 set_ccvars(){
3857     eval ${1}_C=\${_cc_c-\${${1}_C}}
3858     eval ${1}_E=\${_cc_e-\${${1}_E}}
3859     eval ${1}_O=\${_cc_o-\${${1}_O}}
3860
3861     if [ -n "$_depflags" ]; then
3862         eval ${1}_DEPFLAGS=\$_depflags
3863     else
3864         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3865         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3866         eval DEP${1}FLAGS=\$_flags
3867     fi
3868 }
3869
3870 probe_cc cc "$cc" "true"
3871 cflags_filter=$_flags_filter
3872 cflags_speed=$_cflags_speed
3873 cflags_size=$_cflags_size
3874 cflags_noopt=$_cflags_noopt
3875 add_cflags $_flags $_cflags
3876 cc_ldflags=$_ldflags
3877 set_ccvars CC
3878
3879 probe_cc hostcc "$host_cc"
3880 host_cflags_filter=$_flags_filter
3881 add_host_cflags  $_flags $_cflags
3882 set_ccvars HOSTCC
3883
3884 test -n "$cc_type" && enable $cc_type ||
3885     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3886
3887 : ${as_default:=$cc}
3888 : ${objcc_default:=$cc}
3889 : ${dep_cc_default:=$cc}
3890 : ${ld_default:=$cc}
3891 : ${host_ld_default:=$host_cc}
3892 set_default ar as objcc dep_cc ld host_ld windres
3893
3894 probe_cc as "$as"
3895 asflags_filter=$_flags_filter
3896 add_asflags $_flags $_cflags
3897 set_ccvars AS
3898
3899 probe_cc objcc "$objcc"
3900 objcflags_filter=$_flags_filter
3901 add_objcflags $_flags $_cflags
3902 set_ccvars OBJC
3903
3904 probe_cc ld "$ld"
3905 ldflags_filter=$_flags_filter
3906 add_ldflags $_flags $_ldflags
3907 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3908 LD_O=${_ld_o-$LD_O}
3909 LD_LIB=${_ld_lib-$LD_LIB}
3910 LD_PATH=${_ld_path-$LD_PATH}
3911
3912 probe_cc hostld "$host_ld"
3913 host_ldflags_filter=$_flags_filter
3914 add_host_ldflags $_flags $_ldflags
3915 HOSTLD_O=${_ld_o-$HOSTLD_O}
3916
3917 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3918     probe_cc depcc "$dep_cc"
3919     CCDEP=${_DEPCMD:-$DEPCMD}
3920     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3921     DEPCCFLAGS=$_flags
3922 fi
3923
3924 if $ar 2>&1 | grep -q Microsoft; then
3925     arflags="-nologo"
3926     ar_o='-out:$@'
3927 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3928     arflags="rq"
3929     ar_o='$@'
3930 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3931     arflags='-Xany -r -c'
3932     ar_o='$@'
3933 elif $ar 2>&1 | grep -q "\[D\] "; then
3934     arflags="rcD"
3935     ar_o='$@'
3936 else
3937     arflags="rc"
3938     ar_o='$@'
3939 fi
3940
3941 add_cflags $extra_cflags
3942 add_cxxflags $extra_cxxflags
3943 add_objcflags $extra_objcflags
3944 add_asflags $extra_cflags
3945
3946 if test -n "$sysroot"; then
3947     case "$cc_type" in
3948         gcc|llvm_gcc|clang)
3949             add_cppflags --sysroot="$sysroot"
3950             add_ldflags --sysroot="$sysroot"
3951 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3952             add_cppflags -isysroot "$sysroot"
3953             add_ldflags -isysroot "$sysroot"
3954         ;;
3955         tms470)
3956             add_cppflags -I"$sysinclude"
3957             add_ldflags  --sysroot="$sysroot"
3958         ;;
3959     esac
3960 fi
3961
3962 if test "$cpu" = host; then
3963     enabled cross_compile &&
3964         die "--cpu=host makes no sense when cross-compiling."
3965
3966     case "$cc_type" in
3967         gcc|llvm_gcc)
3968             check_native(){
3969                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3970                 sed -n "/cc1.*$1=/{
3971                             s/.*$1=\\([^ ]*\\).*/\\1/
3972                             p
3973                             q
3974                         }" $TMPE
3975             }
3976             cpu=$(check_native -march || check_native -mcpu)
3977         ;;
3978     esac
3979
3980     test "${cpu:-host}" = host &&
3981         die "--cpu=host not supported with compiler $cc"
3982 fi
3983
3984 # Deal with common $arch aliases
3985 case "$arch" in
3986     aarch64|arm64)
3987         arch="aarch64"
3988     ;;
3989     arm*|iPad*|iPhone*)
3990         arch="arm"
3991     ;;
3992     mips*|IP*)
3993         arch="mips"
3994     ;;
3995     parisc*|hppa*)
3996         arch="parisc"
3997     ;;
3998     "Power Macintosh"|ppc*|powerpc*)
3999         arch="ppc"
4000     ;;
4001     s390|s390x)
4002         arch="s390"
4003     ;;
4004     sh4|sh)
4005         arch="sh4"
4006     ;;
4007     sun4u|sparc*)
4008         arch="sparc"
4009     ;;
4010     tilegx|tile-gx)
4011         arch="tilegx"
4012     ;;
4013     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4014         arch="x86"
4015     ;;
4016 esac
4017
4018 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4019 enable $arch
4020
4021 # Add processor-specific flags
4022 if enabled aarch64; then
4023
4024     case $cpu in
4025         armv*)
4026             cpuflags="-march=$cpu"
4027         ;;
4028         *)
4029             cpuflags="-mcpu=$cpu"
4030         ;;
4031     esac
4032
4033 elif enabled alpha; then
4034
4035     cpuflags="-mcpu=$cpu"
4036
4037 elif enabled arm; then
4038
4039     check_arm_arch() {
4040         check_cpp_condition stddef.h \
4041             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4042             $cpuflags
4043     }
4044
4045     probe_arm_arch() {
4046         if   check_arm_arch 4;        then echo armv4;
4047         elif check_arm_arch 4T;       then echo armv4t;
4048         elif check_arm_arch 5;        then echo armv5;
4049         elif check_arm_arch 5E;       then echo armv5e;
4050         elif check_arm_arch 5T;       then echo armv5t;
4051         elif check_arm_arch 5TE;      then echo armv5te;
4052         elif check_arm_arch 5TEJ;     then echo armv5te;
4053         elif check_arm_arch 6;        then echo armv6;
4054         elif check_arm_arch 6J;       then echo armv6j;
4055         elif check_arm_arch 6K;       then echo armv6k;
4056         elif check_arm_arch 6Z;       then echo armv6z;
4057         elif check_arm_arch 6ZK;      then echo armv6zk;
4058         elif check_arm_arch 6T2;      then echo armv6t2;
4059         elif check_arm_arch 7;        then echo armv7;
4060         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4061         elif check_arm_arch 7S;       then echo armv7-a;
4062         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4063         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4064         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4065         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4066         fi
4067     }
4068
4069     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4070
4071     case $cpu in
4072         armv*)
4073             cpuflags="-march=$cpu"
4074             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4075         ;;
4076         *)
4077             cpuflags="-mcpu=$cpu"
4078             case $cpu in
4079                 cortex-a*)                               subarch=armv7a  ;;
4080                 cortex-r*)                               subarch=armv7r  ;;
4081                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4082                 arm11*)                                  subarch=armv6   ;;
4083                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4084                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4085                 *)                             subarch=$(probe_arm_arch) ;;
4086             esac
4087         ;;
4088     esac
4089
4090     case "$subarch" in
4091         armv5t*)    enable fast_clz                ;;
4092         armv[6-8]*)
4093             enable fast_clz
4094             disabled fast_unaligned || enable fast_unaligned
4095             ;;
4096     esac
4097
4098 elif enabled avr32; then
4099
4100     case $cpu in
4101         ap7[02]0[0-2])
4102             subarch="avr32_ap"
4103             cpuflags="-mpart=$cpu"
4104         ;;
4105         ap)
4106             subarch="avr32_ap"
4107             cpuflags="-march=$cpu"
4108         ;;
4109         uc3[ab]*)
4110             subarch="avr32_uc"
4111             cpuflags="-mcpu=$cpu"
4112         ;;
4113         uc)
4114             subarch="avr32_uc"
4115             cpuflags="-march=$cpu"
4116         ;;
4117     esac
4118
4119 elif enabled bfin; then
4120
4121     cpuflags="-mcpu=$cpu"
4122
4123 elif enabled mips; then
4124
4125     cpuflags="-march=$cpu"
4126
4127     case $cpu in
4128         24kc)
4129             disable mips64r2
4130             disable mips64r6
4131             disable mipsfpu
4132             disable mipsdsp
4133             disable mipsdspr2
4134             disable msa
4135         ;;
4136         24kf*)
4137             disable mips64r2
4138             disable mips64r6
4139             disable mipsdsp
4140             disable mipsdspr2
4141             disable msa
4142         ;;
4143         24kec|34kc|1004kc)
4144             disable mips64r2
4145             disable mips64r6
4146             disable mipsfpu
4147             disable mipsdspr2
4148             disable msa
4149         ;;
4150         24kef*|34kf*|1004kf*)
4151             disable mips64r2
4152             disable mips64r6
4153             disable mipsdspr2
4154             disable msa
4155         ;;
4156         74kc)
4157             disable mips64r2
4158             disable mips64r6
4159             disable mipsfpu
4160             disable msa
4161         ;;
4162         74kf)
4163             disable mips64r2
4164             disable mips64r6
4165             disable msa
4166         ;;
4167         p5600)
4168             disable mips64r2
4169             disable mips64r6
4170             disable mipsdsp
4171             disable mipsdspr2
4172             check_cflags "-mtune=p5600" &&
4173             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4174             add_asflags "-mfp64"
4175         ;;
4176         i6400)
4177             disable mips32r2
4178             disable mips64r2
4179             disable mipsdsp
4180             disable mipsdspr2
4181             check_cflags "-mtune=i6400 -mabi=64" &&
4182             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4183             check_ldflags "-mabi=64" &&
4184             add_asflags "-mfp64"
4185         ;;
4186         loongson*)
4187             disable mipsfpu
4188             disable mips32r2
4189             disable mips64r2
4190             disable mips64r6
4191             disable mipsdsp
4192             disable mipsdspr2
4193             disable msa
4194             enable local_aligned_8 local_aligned_16 local_aligned_32
4195             enable simd_align_16
4196             enable fast_64bit
4197             enable fast_clz
4198             enable fast_cmov
4199             enable fast_unaligned
4200             disable aligned_stack
4201             case $cpu in
4202                 loongson3*)
4203                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4204                 ;;
4205                 loongson2e)
4206                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4207                 ;;
4208                 loongson2f)
4209                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4210                 ;;
4211             esac
4212         ;;
4213         generic)
4214             disable mips64r6
4215             disable msa
4216         ;;
4217         *)
4218             disable mipsfpu
4219             disable mips32r2
4220             disable mips64r2
4221             disable mips64r6
4222             disable mipsdsp
4223             disable mipsdspr2
4224             disable msa
4225         ;;
4226     esac
4227
4228 elif enabled ppc; then
4229
4230     disable ldbrx
4231
4232     case $(tolower $cpu) in
4233         601|ppc601|powerpc601)
4234             cpuflags="-mcpu=601"
4235             disable altivec
4236         ;;
4237         603*|ppc603*|powerpc603*)
4238             cpuflags="-mcpu=603"
4239             disable altivec
4240         ;;
4241         604*|ppc604*|powerpc604*)
4242             cpuflags="-mcpu=604"
4243             disable altivec
4244         ;;
4245         g3|75*|ppc75*|powerpc75*)
4246             cpuflags="-mcpu=750"
4247             disable altivec
4248         ;;
4249         g4|745*|ppc745*|powerpc745*)
4250             cpuflags="-mcpu=7450"
4251             disable vsx
4252         ;;
4253         74*|ppc74*|powerpc74*)
4254             cpuflags="-mcpu=7400"
4255             disable vsx
4256         ;;
4257         g5|970|ppc970|powerpc970)
4258             cpuflags="-mcpu=970"
4259             disable vsx
4260         ;;
4261         power[3-6]*)
4262             cpuflags="-mcpu=$cpu"
4263             disable vsx
4264         ;;
4265         power[7-8]*)
4266             cpuflags="-mcpu=$cpu"
4267         ;;
4268         cell)
4269             cpuflags="-mcpu=cell"
4270             enable ldbrx
4271             disable vsx
4272         ;;
4273         e500mc)
4274             cpuflags="-mcpu=e500mc"
4275             disable altivec
4276         ;;
4277         e500v2)
4278             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4279             disable altivec
4280             disable dcbzl
4281         ;;
4282         e500)
4283             cpuflags="-mcpu=8540 -mhard-float"
4284             disable altivec
4285             disable dcbzl
4286         ;;
4287     esac
4288
4289 elif enabled sparc; then
4290
4291     case $cpu in
4292         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4293             cpuflags="-mcpu=$cpu"
4294         ;;
4295         ultrasparc*|niagara[234])
4296             cpuflags="-mcpu=$cpu"
4297         ;;
4298     esac
4299
4300 elif enabled x86; then
4301
4302     case $cpu in
4303         i[345]86|pentium)
4304             cpuflags="-march=$cpu"
4305             disable i686
4306             disable mmx
4307         ;;
4308         # targets that do NOT support nopl and conditional mov (cmov)
4309         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4310             cpuflags="-march=$cpu"
4311             disable i686
4312         ;;
4313         # targets that do support nopl and conditional mov (cmov)
4314         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4315         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4316             cpuflags="-march=$cpu"
4317             enable i686
4318             enable fast_cmov
4319         ;;
4320         # targets that do support conditional mov but on which it's slow
4321         pentium4|pentium4m|prescott|nocona)
4322             cpuflags="-march=$cpu"
4323             enable i686
4324             disable fast_cmov
4325         ;;
4326     esac
4327
4328 fi
4329
4330 if [ "$cpu" != generic ]; then
4331     add_cflags  $cpuflags
4332     add_asflags $cpuflags
4333     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4334 fi
4335
4336 # compiler sanity check
4337 check_exec <<EOF
4338 int main(void){ return 0; }
4339 EOF
4340 if test "$?" != 0; then
4341     echo "$cc is unable to create an executable file."
4342     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4343         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4344         echo "Only do this if you know what cross compiling means."
4345     fi
4346     die "C compiler test failed."
4347 fi
4348
4349 add_cppflags -D_ISOC99_SOURCE
4350 add_cxxflags -D__STDC_CONSTANT_MACROS
4351 check_cflags -std=c99
4352 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4353 #include <stdlib.h>
4354 EOF
4355 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4356 #include <stdlib.h>
4357 EOF
4358
4359 add_host_cppflags -D_ISOC99_SOURCE
4360 check_host_cflags -std=c99
4361 check_host_cflags -Wall
4362 check_host_cflags -O3
4363
4364 check_64bit(){
4365     arch32=$1
4366     arch64=$2
4367     expr=$3
4368     check_code cc "" "int test[2*($expr) - 1]" &&
4369         subarch=$arch64 || subarch=$arch32
4370 }
4371
4372 case "$arch" in
4373     aarch64|alpha|ia64)
4374         spic=$shared
4375     ;;
4376     mips)
4377         check_64bit mips mips64 '_MIPS_SIM > 1'
4378         spic=$shared
4379     ;;
4380     parisc)
4381         check_64bit parisc parisc64 'sizeof(void *) > 4'
4382         spic=$shared
4383     ;;
4384     ppc)
4385         check_64bit ppc ppc64 'sizeof(void *) > 4'
4386         spic=$shared
4387     ;;
4388     s390)
4389         check_64bit s390 s390x 'sizeof(void *) > 4'
4390         spic=$shared
4391     ;;
4392     sparc)
4393         check_64bit sparc sparc64 'sizeof(void *) > 4'
4394         spic=$shared
4395     ;;
4396     x86)
4397         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4398         # Treat x32 as x64 for now. Note it also needs spic=$shared
4399         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4400             subarch=x86_64
4401         if test "$subarch" = "x86_64"; then
4402             spic=$shared
4403         fi
4404     ;;
4405     ppc)
4406         check_cc <<EOF && subarch="ppc64"
4407         int test[(int)sizeof(char*) - 7];
4408 EOF
4409     ;;
4410 esac
4411
4412 enable $subarch
4413 enabled spic && enable_weak pic
4414
4415 # OS specific
4416 case $target_os in
4417     aix)
4418         SHFLAGS=-shared
4419         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4420         enabled shared && add_ldflags -Wl,-brtl
4421         ;;
4422     android)
4423         disable symver
4424         enable section_data_rel_ro
4425         SLIB_INSTALL_NAME='$(SLIBNAME)'
4426         SLIB_INSTALL_LINKS=
4427         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4428         ;;
4429     haiku)
4430         prefix_default="/boot/common"
4431         network_extralibs="-lnetwork"
4432         host_libs=
4433         ;;
4434     sunos)
4435         SHFLAGS='-shared -Wl,-h,$$(@F)'
4436         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4437         network_extralibs="-lsocket -lnsl"
4438         add_cppflags -D__EXTENSIONS__
4439         # When using suncc to build, the Solaris linker will mark
4440         # an executable with each instruction set encountered by
4441         # the Solaris assembler.  As our libraries contain their own
4442         # guards for processor-specific code, instead suppress
4443         # generation of the HWCAPS ELF section on Solaris x86 only.
4444         enabled_all suncc x86 &&
4445             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4446             add_ldflags -Wl,-M,mapfile
4447         nm_default='nm -P -g'
4448         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4449         ;;
4450     netbsd)
4451         disable symver
4452         oss_indev_extralibs="-lossaudio"
4453         oss_outdev_extralibs="-lossaudio"
4454         enabled gcc || check_ldflags -Wl,-zmuldefs
4455         ;;
4456     openbsd|bitrig)
4457         disable symver
4458         SHFLAGS='-shared'
4459         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4460         SLIB_INSTALL_LINKS=
4461         oss_indev_extralibs="-lossaudio"
4462         oss_outdev_extralibs="-lossaudio"
4463         ;;
4464     dragonfly)
4465         disable symver
4466         ;;
4467     freebsd)
4468         ;;
4469     bsd/os)
4470         add_extralibs -lpoll -lgnugetopt
4471         strip="strip -d"
4472         ;;
4473     darwin)
4474         enabled ppc && add_asflags -force_cpusubtype_ALL
4475         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4476         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4477         strip="${strip} -x"
4478         add_ldflags -Wl,-dynamic,-search_paths_first
4479         SLIBSUF=".dylib"
4480         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4481         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4482         objformat="macho"
4483         enabled x86_64 && objformat="macho64"
4484         enabled_any pic shared x86_64 ||
4485             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4486         ;;
4487     msys*)
4488         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4489         ;;
4490     mingw32*|mingw64*)
4491         if test $target_os = "mingw32ce"; then
4492             disable network
4493         else
4494             target_os=mingw32
4495         fi
4496         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4497         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4498         LIBTARGET=i386
4499         if enabled x86_64; then
4500             LIBTARGET="i386:x86-64"
4501         elif enabled arm; then
4502             LIBTARGET=arm-wince
4503         fi
4504         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4505         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4506         shlibdir_default="$bindir_default"
4507         SLIBPREF=""
4508         SLIBSUF=".dll"
4509         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4510         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4511         dlltool="${cross_prefix}dlltool"
4512         if check_cmd lib.exe -list; then
4513             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4514             if enabled x86_64; then
4515                 LIBTARGET=x64
4516             fi
4517         elif check_cmd $dlltool --version; then
4518             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4519         fi
4520         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4521         SLIB_INSTALL_LINKS=
4522         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4523         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4524         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4525         objformat="win32"
4526         ranlib=:
4527         enable dos_paths
4528         check_ldflags -Wl,--nxcompat,--dynamicbase
4529         # Lets work around some stupidity in binutils.
4530         # ld will strip relocations from executables even though we need them
4531         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4532         # however ld then forgets what the entry point should be (oops) so we
4533         # have to manually (re)set it.
4534         if enabled x86_32; then
4535             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4536         elif enabled x86_64; then
4537             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4538             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4539             # Set image base >4GB for extra entropy with HEASLR
4540             add_ldexeflags -Wl,--image-base,0x140000000
4541             append SHFLAGS -Wl,--image-base,0x180000000
4542         fi
4543         ;;
4544     win32|win64)
4545         disable symver
4546         if enabled shared; then
4547             # Link to the import library instead of the normal static library
4548             # for shared libs.
4549             LD_LIB='%.lib'
4550             # Cannot build both shared and static libs with MSVC or icl.
4551             disable static
4552         fi
4553         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4554         shlibdir_default="$bindir_default"
4555         SLIBPREF=""
4556         SLIBSUF=".dll"
4557         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4558         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4559         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4560         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4561         SLIB_INSTALL_LINKS=
4562         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4563         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4564         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4565         objformat="win32"
4566         ranlib=:
4567         enable dos_paths
4568         ;;
4569     cygwin*)
4570         target_os=cygwin
4571         shlibdir_default="$bindir_default"
4572         SLIBPREF="cyg"
4573         SLIBSUF=".dll"
4574         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4575         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4576         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4577         SLIB_INSTALL_LINKS=
4578         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4579         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4580         objformat="win32"
4581         enable dos_paths
4582         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4583         ;;
4584     *-dos|freedos|opendos)
4585         network_extralibs="-lsocket"
4586         objformat="coff"
4587         enable dos_paths
4588         add_cppflags -U__STRICT_ANSI__
4589         ;;
4590     linux)
4591         enable dv1394
4592         enable section_data_rel_ro
4593         ;;
4594     irix*)
4595         target_os=irix
4596         ranlib="echo ignoring ranlib"
4597         ;;
4598     os/2*)
4599         strip="lxlite -CS"
4600         ln_s="cp -f"
4601         objformat="aout"
4602         add_cppflags -D_GNU_SOURCE
4603         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4604         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4605         LIBSUF="_s.a"
4606         SLIBPREF=""
4607         SLIBSUF=".dll"
4608         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4609         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4610         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4611             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4612             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4613             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4614             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4615         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4616             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4617         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4618         enable dos_paths
4619         enable_weak os2threads
4620         ;;
4621     gnu/kfreebsd)
4622         add_cppflags -D_BSD_SOURCE
4623         ;;
4624     gnu)
4625         ;;
4626     qnx)
4627         add_cppflags -D_QNX_SOURCE
4628         network_extralibs="-lsocket"
4629         ;;
4630     symbian)
4631         SLIBSUF=".dll"
4632         enable dos_paths
4633         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4634         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4635         add_ldflags -Wl,--target1-abs,--no-undefined \
4636                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4637                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4638         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4639                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4640                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4641         ;;
4642     osf1)
4643         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4644         ;;
4645     minix)
4646         ;;
4647     plan9)
4648         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4649                      -D_REENTRANT_SOURCE        \
4650                      -D_RESEARCH_SOURCE         \
4651                      -DFD_SETSIZE=96            \
4652                      -DHAVE_SOCK_OPTS
4653         add_compat strtod.o strtod=avpriv_strtod
4654         network_extralibs='-lbsd'
4655         exeobjs=compat/plan9/main.o
4656         disable ffserver
4657         cp_f='cp'
4658         ;;
4659     none)
4660         ;;
4661     *)
4662         die "Unknown OS '$target_os'."
4663         ;;
4664 esac
4665
4666 # determine libc flavour
4667
4668 probe_libc(){
4669     pfx=$1
4670     pfx_no_=${pfx%_}
4671     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4672     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4673         eval ${pfx}libc_type=uclibc
4674         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4675     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4676         eval ${pfx}libc_type=glibc
4677         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4678     # MinGW headers can be installed on Cygwin, so check for newlib first.
4679     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4680         eval ${pfx}libc_type=newlib
4681         add_${pfx}cppflags -U__STRICT_ANSI__
4682     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4683     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4684         eval ${pfx}libc_type=mingw64
4685         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4686             add_compat msvcrt/snprintf.o
4687             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4688         fi
4689         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4690         eval test \$${pfx_no_}cc_type = "gcc" &&
4691             add_${pfx}cppflags -D__printf__=__gnu_printf__
4692     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4693          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4694         eval ${pfx}libc_type=mingw32
4695         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4696             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4697             die "ERROR: MinGW32 runtime version must be >= 3.15."
4698         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4699         eval test \$${pfx_no_}cc_type = "gcc" &&
4700             add_${pfx}cppflags -D__printf__=__gnu_printf__
4701     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4702         eval ${pfx}libc_type=msvcrt
4703         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4704             if [ "$pfx" = host_ ]; then
4705                 add_host_cppflags -Dsnprintf=_snprintf
4706             else
4707                 add_compat strtod.o strtod=avpriv_strtod
4708                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4709                                              _snprintf=avpriv_snprintf  \
4710                                              vsnprintf=avpriv_vsnprintf
4711             fi
4712         fi
4713         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4714         # 0x601 by default unless something else is set by the user.
4715         # This can easily lead to us detecting functions only present
4716         # in such new versions and producing binaries requiring windows 7.0.
4717         # Therefore explicitly set the default to XP unless the user has
4718         # set something else on the command line.
4719         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4720         # family. For these cases, configure is free to use any functions
4721         # found in the SDK headers by default. (Alternatively, we could force
4722         # _WIN32_WINNT to 0x0602 in that case.)
4723         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4724             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4725 #ifdef WINAPI_FAMILY
4726 #include <winapifamily.h>
4727 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4728 #error not desktop
4729 #endif
4730 #endif
4731 EOF
4732     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4733         eval ${pfx}libc_type=klibc
4734     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4735         eval ${pfx}libc_type=bionic
4736     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4737         eval ${pfx}libc_type=solaris
4738         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4739     fi
4740     check_${pfx}cc <<EOF
4741 #include <time.h>
4742 void *v = localtime_r;
4743 EOF
4744 test "$?" != 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
4745 #include <time.h>
4746 void *v = localtime_r;
4747 EOF
4748
4749 }
4750
4751 probe_libc
4752 test -n "$libc_type" && enable libc_$libc_type
4753 probe_libc host_
4754 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4755
4756 case $libc_type in
4757     bionic)
4758         add_compat strtod.o strtod=avpriv_strtod
4759         ;;
4760 esac
4761
4762 # hacks for compiler/libc/os combinations
4763
4764 if enabled_all tms470 libc_glibc; then
4765     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4766     add_cppflags -D__USER_LABEL_PREFIX__=
4767     add_cppflags -D__builtin_memset=memset
4768     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4769     add_cflags   -pds=48    # incompatible redefinition of macro
4770 fi
4771
4772 if enabled_all ccc libc_glibc; then
4773     add_ldflags -Wl,-z,now  # calls to libots crash without this
4774 fi
4775
4776 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4777     add_cppflags '-I\$(SRC_PATH)/compat/float'
4778
4779 esc(){
4780     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4781 }
4782
4783 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4784
4785 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4786
4787 set_default libdir
4788 : ${shlibdir_default:="$libdir"}
4789 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4790
4791 set_default $PATHS_LIST
4792 set_default nm
4793
4794 # we need to build at least one lib type
4795 if ! enabled_any static shared; then
4796     cat <<EOF
4797 At least one library type must be built.
4798 Specify --enable-static to build the static libraries or --enable-shared to
4799 build the shared libraries as well. To only build the shared libraries specify
4800 --disable-static in addition to --enable-shared.
4801 EOF
4802     exit 1;
4803 fi
4804
4805 die_license_disabled() {
4806     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4807 }
4808
4809 die_license_disabled_gpl() {
4810     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4811 }
4812
4813 die_license_disabled gpl frei0r
4814 die_license_disabled gpl libcdio
4815 die_license_disabled gpl librubberband
4816 die_license_disabled gpl libsmbclient
4817 die_license_disabled gpl libutvideo
4818 die_license_disabled gpl libvidstab
4819 die_license_disabled gpl libx264
4820 die_license_disabled gpl libx265
4821 die_license_disabled gpl libxavs
4822 die_license_disabled gpl libxvid
4823 die_license_disabled gpl libzvbi
4824 die_license_disabled gpl x11grab
4825
4826 die_license_disabled nonfree libaacplus
4827 die_license_disabled nonfree libfaac
4828 die_license_disabled nonfree nvenc
4829 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4830 enabled gpl && die_license_disabled_gpl nonfree openssl
4831
4832 die_license_disabled version3 gmp
4833 die_license_disabled version3 libopencore_amrnb
4834 die_license_disabled version3 libopencore_amrwb
4835 die_license_disabled version3 libsmbclient
4836 die_license_disabled version3 libvo_aacenc
4837 die_license_disabled version3 libvo_amrwbenc
4838
4839 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4840
4841 disabled optimizations || check_cflags -fomit-frame-pointer
4842
4843 enable_weak_pic() {
4844     disabled pic && return
4845     enable pic
4846     add_cppflags -DPIC
4847     case "$target_os" in
4848     mingw*|cygwin*)
4849         ;;
4850     *)
4851         add_cflags -fPIC
4852         ;;
4853     esac
4854     add_asflags  -fPIC
4855 }
4856
4857 enabled pic && enable_weak_pic
4858
4859 check_cc <<EOF || die "Symbol mangling check failed."
4860 int ff_extern;
4861 EOF
4862 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4863 extern_prefix=${sym%%ff_extern*}
4864
4865 check_cc <<EOF && enable_weak inline_asm
4866 void foo(void) { __asm__ volatile ("" ::); }
4867 EOF
4868
4869 _restrict=
4870 for restrict_keyword in restrict __restrict__ __restrict; do
4871     check_cc <<EOF && _restrict=$restrict_keyword && break
4872 void foo(char * $restrict_keyword p);
4873 EOF
4874 done
4875
4876 check_cc <<EOF && enable pragma_deprecated
4877 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4878 EOF
4879
4880 check_cc <<EOF && enable attribute_packed
4881 struct { int x; } __attribute__((packed)) x;
4882 EOF
4883
4884 check_cc <<EOF && enable attribute_may_alias
4885 union { int x; } __attribute__((may_alias)) x;
4886 EOF
4887
4888 check_cc <<EOF || die "endian test failed"
4889 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4890 EOF
4891 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4892
4893 if ! enabled ppc64 || enabled bigendian; then
4894     disable vsx
4895 fi
4896
4897 check_gas() {
4898     log "check_gas using '$as' as AS"
4899     # :vararg is used on aarch64, arm and ppc altivec
4900     check_as <<EOF || return 1
4901 .macro m n, y:vararg=0
4902 \n: .int \y
4903 .endm
4904 m x
4905 EOF
4906     # .altmacro is only used in arm asm
4907     ! enabled arm || check_as <<EOF || return 1
4908 .altmacro
4909 EOF
4910     enable gnu_as
4911     return 0
4912 }
4913
4914 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4915     nogas=:
4916     enabled_any arm aarch64 && nogas=die
4917     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4918     as_noop=-v
4919
4920     case $as_type in
4921         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4922         gcc)  gaspp_as_type=gas ;;
4923         *)    gaspp_as_type=$as_type ;;
4924     esac
4925
4926     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4927
4928     test "${as#*gas-preprocessor.pl}" != "$as" ||
4929     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4930         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4931
4932     if ! check_gas ; then
4933         as=${gas:=$as}
4934         check_gas || \
4935             $nogas "GNU assembler not found, install/update gas-preprocessor"
4936     fi
4937
4938     check_as <<EOF && enable as_func
4939 .func test
4940 .endfunc
4941 EOF
4942 fi
4943
4944 check_inline_asm inline_asm_labels '"1:\n"'
4945
4946 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4947
4948 if enabled aarch64; then
4949     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4950     # internal assembler in clang 3.3 does not support this instruction
4951     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4952     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4953
4954     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4955
4956 elif enabled alpha; then
4957
4958     check_cflags -mieee
4959
4960 elif enabled arm; then
4961
4962     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4963
4964     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4965 float func(float a, float b){ return a+b; }
4966 EOF
4967
4968     enabled thumb && check_cflags -mthumb || check_cflags -marm
4969
4970     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4971         enable vfp_args
4972     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4973         enable vfp_args
4974     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4975         case "${cross_prefix:-$cc}" in
4976             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4977             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4978 __asm__ (".eabi_attribute 28, 1");
4979 int main(void) { return 0; }
4980 EOF
4981         esac
4982         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4983     fi
4984
4985     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4986     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4987     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4988     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4989     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4990     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4991     enabled setend  && check_insn setend  'setend be'
4992
4993     [ $target_os = linux ] || [ $target_os = android ] ||
4994         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4995             $ARCH_EXT_LIST_ARM
4996
4997     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4998
4999     check_as <<EOF && enable as_dn_directive
5000 ra .dn d0.i16
5001 .unreq ra
5002 EOF
5003
5004     # llvm's integrated assembler supports .object_arch from llvm 3.5
5005     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5006 .object_arch armv4
5007 EOF
5008
5009     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5010
5011 elif enabled mips; then
5012
5013     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5014     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5015     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5016
5017     # Enable minimum ISA based on selected options
5018     if enabled mips64 && (enabled mipsdsp || enabled mipsdspr2); then
5019         add_cflags "-mips64r2"
5020         add_asflags "-mips64r2"
5021     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
5022         add_cflags "-mips64"
5023         add_asflags "-mips64"
5024     elif enabled mipsdsp || enabled mipsdspr2; then
5025         add_cflags "-mips32r2 -mfp32"
5026         add_asflags "-mips32r2 -mfp32"
5027     fi
5028
5029     enabled mipsdsp && add_cflags "-mdsp" && add_asflags "-mdsp" &&
5030      check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"'
5031     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
5032      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
5033     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
5034      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
5035     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
5036      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
5037
5038     enabled msa && add_asflags "-mmsa"
5039
5040 elif enabled parisc; then
5041
5042     if enabled gcc; then
5043         case $($cc -dumpversion) in
5044             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5045         esac
5046     fi
5047
5048 elif enabled ppc; then
5049
5050     enable local_aligned_8 local_aligned_16 local_aligned_32
5051
5052     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5053     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5054     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5055     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5056
5057     # AltiVec flags: The FSF version of GCC differs from the Apple version
5058     if enabled altivec; then
5059         check_cflags -maltivec -mabi=altivec &&
5060         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5061         check_cflags -faltivec
5062
5063         # check if our compiler supports Motorola AltiVec C API
5064         check_cc <<EOF || disable altivec
5065 $inc_altivec_h
5066 int main(void) {
5067     vector signed int v1 = (vector signed int) { 0 };
5068     vector signed int v2 = (vector signed int) { 1 };
5069     v1 = vec_add(v1, v2);
5070     return 0;
5071 }
5072 EOF
5073
5074         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5075     fi
5076
5077     if enabled vsx; then
5078         check_cflags -mvsx &&
5079         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5080     fi
5081
5082     if enabled power8; then
5083         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5084     fi
5085
5086 elif enabled x86; then
5087
5088     check_builtin rdtsc    intrin.h   "__rdtsc()"
5089     check_builtin mm_empty mmintrin.h "_mm_empty()"
5090
5091     enable local_aligned_8 local_aligned_16 local_aligned_32
5092
5093     # check whether EBP is available on x86
5094     # As 'i' is stored on the stack, this program will crash
5095     # if the base pointer is used to access it because the
5096     # base pointer is cleared in the inline assembly code.
5097     check_exec_crash <<EOF && enable ebp_available
5098 volatile int i=0;
5099 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5100 return i;
5101 EOF
5102
5103     # check whether EBX is available on x86
5104     check_inline_asm ebx_available '""::"b"(0)' &&
5105         check_inline_asm ebx_available '"":::"%ebx"'
5106
5107     # check whether xmm clobbers are supported
5108     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5109
5110     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5111         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5112
5113     # check whether binutils is new enough to compile SSSE3/MMXEXT
5114     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5115     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5116
5117     if ! disabled_any asm mmx yasm; then
5118         if check_cmd $yasmexe --version; then
5119             enabled x86_64 && yasm_extra="-m amd64"
5120             yasm_debug="-g dwarf2"
5121         elif check_cmd nasm -v; then
5122             yasmexe=nasm
5123             yasm_debug="-g -F dwarf"
5124             if enabled x86_64; then
5125                 case "$objformat" in
5126                     elf)   objformat=elf64 ;;
5127                     win32) objformat=win64 ;;
5128                 esac
5129             fi
5130         fi
5131
5132         YASMFLAGS="-f $objformat $yasm_extra"
5133         enabled pic               && append YASMFLAGS "-DPIC"
5134         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5135         case "$objformat" in
5136             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5137         esac
5138
5139         check_yasm "movbe ecx, [5]" && enable yasm ||
5140             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5141         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5142         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5143         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5144         check_yasm "CPU amdnop" || disable cpunop
5145     fi
5146
5147     case "$cpu" in
5148         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5149             disable fast_clz
5150         ;;
5151     esac
5152
5153 fi
5154
5155 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5156
5157 check_ldflags -Wl,--as-needed
5158 check_ldflags -Wl,-z,noexecstack
5159
5160 if check_func dlopen; then
5161     ldl=
5162 elif check_func dlopen -ldl; then
5163     ldl=-ldl
5164 fi
5165
5166 frei0r_filter_extralibs='$ldl'
5167 frei0r_src_filter_extralibs='$ldl'
5168 ladspa_filter_extralibs='$ldl'
5169 nvenc_encoder_extralibs='$ldl'
5170
5171 if ! disabled network; then
5172     check_func getaddrinfo $network_extralibs
5173     check_func inet_aton $network_extralibs
5174
5175     check_type netdb.h "struct addrinfo"
5176     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5177     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5178     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5179     check_type poll.h "struct pollfd"
5180     check_type netinet/sctp.h "struct sctp_event_subscribe"
5181     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5182     check_type netinet/in.h "struct sockaddr_in6"
5183     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5184     check_type "sys/types.h sys/socket.h" socklen_t
5185
5186     # Prefer arpa/inet.h over winsock2
5187     if check_header arpa/inet.h ; then
5188         check_func closesocket
5189     elif check_header winsock2.h ; then
5190         check_func_headers winsock2.h closesocket -lws2 &&
5191             network_extralibs="-lws2" ||
5192         { check_func_headers winsock2.h closesocket -lws2_32 &&
5193             network_extralibs="-lws2_32"; } || disable winsock2_h network
5194         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5195
5196         check_type ws2tcpip.h socklen_t
5197         check_type ws2tcpip.h "struct addrinfo"
5198         check_type ws2tcpip.h "struct group_source_req"
5199         check_type ws2tcpip.h "struct ip_mreq_source"
5200         check_type ws2tcpip.h "struct ipv6_mreq"
5201         check_type winsock2.h "struct pollfd"
5202         check_struct winsock2.h "struct sockaddr" sa_len
5203         check_type ws2tcpip.h "struct sockaddr_in6"
5204         check_type ws2tcpip.h "struct sockaddr_storage"
5205     else
5206         disable network
5207     fi
5208 fi
5209
5210 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5211 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5212 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5213 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5214 check_builtin sarestart signal.h "SA_RESTART"
5215 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5216 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5217 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5218
5219 case "$custom_allocator" in
5220     jemalloc)
5221         # jemalloc by default does not use a prefix
5222         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5223     ;;
5224     tcmalloc)
5225         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5226         malloc_prefix=tc_
5227     ;;
5228 esac
5229
5230 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5231 check_func  ${malloc_prefix}memalign            && enable memalign
5232 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5233
5234 check_func  access
5235 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5236 check_func  fcntl
5237 check_func  fork
5238 check_func  gethrtime
5239 check_func  getopt
5240 check_func  getrusage
5241 check_func  gettimeofday
5242 check_func  isatty
5243 check_func  mach_absolute_time
5244 check_func  mkstemp
5245 check_func  mmap
5246 check_func  mprotect
5247 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5248 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5249 check_func  sched_getaffinity
5250 check_func  setrlimit
5251 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5252 check_func  strerror_r
5253 check_func  sysconf
5254 check_func  sysctl
5255 check_func  usleep
5256
5257 check_func_headers conio.h kbhit
5258 check_func_headers io.h setmode
5259 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5260 check_func_headers stdlib.h getenv
5261 check_func_headers sys/stat.h lstat
5262
5263 check_func_headers windows.h CoTaskMemFree -lole32
5264 check_func_headers windows.h GetProcessAffinityMask
5265 check_func_headers windows.h GetProcessTimes
5266 check_func_headers windows.h GetSystemTimeAsFileTime
5267 check_func_headers windows.h MapViewOfFile
5268 check_func_headers windows.h PeekNamedPipe
5269 check_func_headers windows.h SetConsoleTextAttribute
5270 check_func_headers windows.h SetConsoleCtrlHandler
5271 check_func_headers windows.h Sleep
5272 check_func_headers windows.h VirtualAlloc
5273 check_struct windows.h "CONDITION_VARIABLE" Ptr
5274 check_func_headers glob.h glob
5275 enabled xlib &&
5276     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5277
5278 check_header direct.h
5279 check_header dirent.h
5280 check_header dlfcn.h
5281 check_header d3d11.h
5282 check_header dxva.h
5283 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5284 check_header io.h
5285 check_header libcrystalhd/libcrystalhd_if.h
5286 check_header mach/mach_time.h
5287 check_header malloc.h
5288 check_header net/udplite.h
5289 check_header poll.h
5290 check_header sys/mman.h
5291 check_header sys/param.h
5292 check_header sys/resource.h
5293 check_header sys/select.h
5294 check_header sys/time.h
5295 check_header sys/un.h
5296 check_header termios.h
5297 check_header unistd.h
5298 check_header valgrind/valgrind.h
5299 check_header vdpau/vdpau.h
5300 check_header vdpau/vdpau_x11.h
5301 check_header VideoDecodeAcceleration/VDADecoder.h
5302 check_header VideoToolbox/VideoToolbox.h
5303 check_header windows.h
5304 check_header X11/extensions/XvMClib.h
5305 check_header asm/types.h
5306
5307 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5308 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5309 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5310 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5311
5312 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5313
5314 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5315 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5316 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5317 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5318 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5319
5320 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5321
5322 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5323
5324 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5325
5326 if ! disabled w32threads && ! enabled pthreads; then
5327     check_func_headers "windows.h process.h" _beginthreadex &&
5328         enable w32threads || disable w32threads
5329     if ! enabled w32threads && enabled winrt; then
5330         check_func_headers "windows.h" CreateThread &&
5331             enable w32threads || disable w32threads
5332     fi
5333 fi
5334
5335 # check for some common methods of building with pthread support
5336 # do this before the optional library checks as some of them require pthreads
5337 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5338     enable pthreads
5339     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5340         add_cflags -pthread
5341         add_extralibs -pthread
5342     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5343         add_cflags -pthreads
5344         add_extralibs -pthreads
5345     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5346         add_cflags -ldl -pthread
5347         add_extralibs -ldl -pthread
5348     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5349         add_extralibs -lpthreadGC2
5350     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5351         :
5352     elif ! check_func pthread_join && ! check_func pthread_create; then
5353         disable pthreads
5354     fi
5355     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5356 fi
5357
5358
5359 if enabled pthreads; then
5360   check_func pthread_cancel
5361 fi
5362
5363 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5364 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5365 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5366
5367 check_lib math.h sin -lm && LIBM="-lm"
5368 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5369
5370 atan2f_args=2
5371 copysign_args=2
5372 hypot_args=2
5373 ldexpf_args=2
5374 powf_args=2
5375
5376 for func in $MATH_FUNCS; do
5377     eval check_mathfunc $func \${${func}_args:-1}
5378 done
5379
5380 for func in $COMPLEX_FUNCS; do
5381     eval check_complexfunc $func \${${func}_args:-1}
5382 done
5383
5384 # these are off by default, so fail if requested and not available
5385 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5386 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5387                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5388 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5389                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5390                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5391 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5392 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5393 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5394 enabled gcrypt            && require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5395 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5396 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5397 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5398 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5399 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5400 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5401 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5402 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5403 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5404                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5405                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5406 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5407 enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create
5408 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5409 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5410                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5411                                  warn "using libfdk without pkg-config"; } }
5412 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"
5413 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5414 enabled fontconfig        && enable libfontconfig
5415 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5416 enabled libfreetype       && require_libfreetype
5417 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5418 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5419 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5420                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5421                                done || die "ERROR: libgsm not found"; }
5422 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5423 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
5424 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5425 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5426 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5427 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5428 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5429 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5430 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5431 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5432 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
5433                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5434                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5435                                die "ERROR: libopenjpeg not found"; }
5436 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5437 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5438 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5439 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5440 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5441 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5442 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5443 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5444                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5445 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5446 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5447 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5448 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5449 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5450     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5451     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5452 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5453 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5454 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5455                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5456                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5457 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5458 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5459 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5460 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5461 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5462 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5463
5464 enabled libvpx            && {
5465     enabled libvpx_vp8_decoder && {
5466         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5467             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5468                 die "ERROR: libvpx decoder version must be >=0.9.1";
5469     }
5470     enabled libvpx_vp8_encoder && {
5471         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5472             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5473                 die "ERROR: libvpx encoder version must be >=0.9.7";
5474     }
5475     enabled libvpx_vp9_decoder && {
5476         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5477             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5478                 disable libvpx_vp9_decoder;
5479     }
5480     enabled libvpx_vp9_encoder && {
5481         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5482             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5483                 disable libvpx_vp9_encoder;
5484     }
5485     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5486         die "libvpx enabled but no supported decoders found"
5487     fi
5488 }
5489
5490 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5491 enabled libwebp           && {
5492     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5493     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5494 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5495                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5496                                  warn "using libx264 without pkg-config"; } } &&
5497                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5498                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5499                              { check_cpp_condition x264.h "X264_MPEG2" &&
5500                                enable libx262; }
5501 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5502                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5503                                die "ERROR: libx265 version must be >= 57."; }
5504 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5505 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5506 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5507 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5508 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5509 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5510                                 { ! enabled cross_compile && {
5511                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5512                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5513                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5514                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5515                                die "ERROR: mmal not found"; }
5516 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5517 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5518                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5519                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5520                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5521 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5522                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5523                                die "ERROR: openal not found"; } &&
5524                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5525                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5526 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5527                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5528                                die "ERROR: opencl not found"; } &&
5529                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5530                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5531                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5532 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5533                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5534                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5535                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5536                                die "ERROR: opengl not found."
5537                              }
5538 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5539                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5540                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5541                                die "ERROR: openssl not found"; }
5542 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5543
5544 # libdc1394 check
5545 if enabled libdc1394; then
5546     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5547         enable libdc1394_2; } ||
5548     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5549         enable libdc1394_1; } ||
5550     die "ERROR: No version of libdc1394 found "
5551 fi
5552 if ! disabled sdl; then
5553     SDL_CONFIG="${cross_prefix}sdl-config"
5554     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5555         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5556         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5557         enable sdl
5558     else
5559         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5560             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5561             sdl_libs=$("${SDL_CONFIG}" --libs)
5562             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5563             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5564             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5565             enable sdl
5566         elif enabled sdl ; then
5567             die "ERROR: SDL not found"
5568         else
5569             disable sdl
5570         fi
5571     fi
5572     if test $target_os = "mingw32"; then
5573         sdl_libs="$sdl_libs -mconsole"
5574     fi
5575 fi
5576 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5577
5578 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5579     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5580     enable securetransport; }
5581
5582 disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&
5583                        enable schannel && add_extralibs -lSecur32; }
5584
5585 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5586 enabled makeinfo \
5587     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5588     && enable makeinfo_html || disable makeinfo_html
5589 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5590 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5591 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5592 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5593
5594 check_header linux/fb.h
5595 check_header linux/videodev.h
5596 check_header linux/videodev2.h
5597 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5598
5599 check_header sys/videoio.h
5600 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5601
5602 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5603 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5604 # w32api 3.12 had it defined wrong
5605 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5606
5607 check_type "dshow.h" IBaseFilter
5608
5609 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5610 { check_header dev/bktr/ioctl_meteor.h &&
5611   check_header dev/bktr/ioctl_bt848.h; } ||
5612 { check_header machine/ioctl_meteor.h &&
5613   check_header machine/ioctl_bt848.h; } ||
5614 { check_header dev/video/meteor/ioctl_meteor.h &&
5615   check_header dev/video/bktr/ioctl_bt848.h; } ||
5616 check_header dev/ic/bt8xx.h
5617
5618 check_header sndio.h
5619 if check_struct sys/soundcard.h audio_buf_info bytes; then
5620     enable_safe sys/soundcard.h
5621 else
5622     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5623     #include <sys/soundcard.h>
5624     audio_buf_info abc;
5625 EOF
5626 fi
5627 check_header soundcard.h
5628
5629 enabled_any alsa_indev alsa_outdev &&
5630     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5631
5632 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5633     check_func jack_port_get_latency_range -ljack
5634
5635 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5636
5637 if enabled libcdio; then
5638     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5639     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5640     die "ERROR: No usable libcdio/cdparanoia found"
5641 fi
5642
5643 enabled xlib &&
5644     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5645
5646 if ! disabled libxcb; then
5647     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5648         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5649     } && disable x11grab && enable libxcb
5650
5651 if enabled libxcb; then
5652     disabled libxcb_shm || {
5653         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5654             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5655         } && check_header sys/shm.h && enable libxcb_shm; }
5656
5657     disabled libxcb_xfixes || {
5658         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5659             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5660         } && enable libxcb_xfixes; }
5661
5662     disabled libxcb_shape || {
5663         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5664             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5665         } && enable libxcb_shape; }
5666
5667     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5668     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5669 fi
5670 fi
5671
5672 if enabled x11grab; then
5673     enabled xlib || die "ERROR: Xlib not found"
5674     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5675     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5676 fi
5677
5678 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5679
5680 enabled dxva2api_h &&
5681     check_cc <<EOF && enable dxva2api_cobj
5682 #define _WIN32_WINNT 0x0600
5683 #define COBJMACROS
5684 #include <windows.h>
5685 #include <d3d9.h>
5686 #include <dxva2api.h>
5687 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5688 EOF
5689
5690 enabled vaapi &&
5691     check_lib va/va.h vaInitialize -lva ||
5692     disable vaapi
5693
5694 enabled vaapi && enabled xlib &&
5695     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5696     enable vaapi_x11
5697
5698 enabled vdpau &&
5699     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5700     disable vdpau
5701
5702 enabled vdpau && enabled xlib &&
5703     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5704     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5705     enable vdpau_x11
5706
5707 # Funny iconv installations are not unusual, so check it after all flags have been set
5708 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5709
5710 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5711
5712 # add some useful compiler flags if supported
5713 check_cflags -Wdeclaration-after-statement
5714 check_cflags -Wall
5715 check_cflags -Wdisabled-optimization
5716 check_cflags -Wpointer-arith
5717 check_cflags -Wredundant-decls
5718 check_cflags -Wwrite-strings
5719 check_cflags -Wtype-limits
5720 check_cflags -Wundef
5721 check_cflags -Wmissing-prototypes
5722 check_cflags -Wno-pointer-to-int-cast
5723 check_cflags -Wstrict-prototypes
5724 check_cflags -Wempty-body
5725 enabled extra_warnings && check_cflags -Winline
5726 enabled extra_warnings && check_cflags -Wcast-qual
5727
5728 check_disable_warning(){
5729     warning_flag=-W${1#-Wno-}
5730     test_cflags $warning_flag && add_cflags $1
5731 }
5732
5733 check_disable_warning -Wno-parentheses
5734 check_disable_warning -Wno-switch
5735 check_disable_warning -Wno-format-zero-length
5736 check_disable_warning -Wno-pointer-sign
5737
5738 # add some linker flags
5739 check_ldflags -Wl,--warn-common
5740 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5741 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5742 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5743 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5744
5745 # add some strip flags
5746 # -wN '..@*' is more selective than -x, but not available everywhere.
5747 check_stripflags -wN \'..@*\' || check_stripflags -x
5748
5749 enabled neon_clobber_test &&
5750     check_ldflags -Wl,--wrap,avcodec_open2              \
5751                   -Wl,--wrap,avcodec_decode_audio4      \
5752                   -Wl,--wrap,avcodec_decode_video2      \
5753                   -Wl,--wrap,avcodec_decode_subtitle2   \
5754                   -Wl,--wrap,avcodec_encode_audio2      \
5755                   -Wl,--wrap,avcodec_encode_video2      \
5756                   -Wl,--wrap,avcodec_encode_subtitle    \
5757                   -Wl,--wrap,swr_convert                \
5758                   -Wl,--wrap,avresample_convert ||
5759     disable neon_clobber_test
5760
5761 enabled xmm_clobber_test &&
5762     check_ldflags -Wl,--wrap,avcodec_open2              \
5763                   -Wl,--wrap,avcodec_decode_audio4      \
5764                   -Wl,--wrap,avcodec_decode_video2      \
5765                   -Wl,--wrap,avcodec_decode_subtitle2   \
5766                   -Wl,--wrap,avcodec_encode_audio2      \
5767                   -Wl,--wrap,avcodec_encode_video2      \
5768                   -Wl,--wrap,avcodec_encode_subtitle    \
5769                   -Wl,--wrap,swr_convert                \
5770                   -Wl,--wrap,avresample_convert         \
5771                   -Wl,--wrap,sws_scale ||
5772     disable xmm_clobber_test
5773
5774 echo "X { local: *; };" > $TMPV
5775 if test_ldflags -Wl,--version-script,$TMPV; then
5776     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5777 elif test_ldflags -Wl,-M,$TMPV; then
5778     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5779 fi
5780
5781 check_cc <<EOF && enable symver_asm_label
5782 void ff_foo(void) __asm__ ("av_foo@VERSION");
5783 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5784 EOF
5785     check_cc <<EOF && enable symver_gnu_asm
5786 __asm__(".symver ff_foo,av_foo@VERSION");
5787 void ff_foo(void) {}
5788 EOF
5789
5790 if [ -z "$optflags" ]; then
5791     if enabled small; then
5792         optflags=$cflags_size
5793     elif enabled optimizations; then
5794         optflags=$cflags_speed
5795     else
5796         optflags=$cflags_noopt
5797     fi
5798 fi
5799
5800 check_optflags(){
5801     check_cflags "$@"
5802     enabled lto && check_ldflags "$@"
5803 }
5804
5805
5806 if enabled lto; then
5807     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5808     check_cflags  -flto
5809     check_ldflags -flto $cpuflags
5810     disable inline_asm_direct_symbol_refs
5811 fi
5812
5813 check_optflags $optflags
5814 check_optflags -fno-math-errno
5815 check_optflags -fno-signed-zeros
5816
5817 enabled ftrapv && check_cflags -ftrapv
5818
5819 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5820 int x;
5821 EOF
5822
5823
5824 if enabled icc; then
5825     # Just warnings, no remarks
5826     check_cflags -w1
5827     # -wd: Disable following warnings
5828     # 144, 167, 556: -Wno-pointer-sign
5829     # 188: enumerated type mixed with another type
5830     # 1292: attribute "foo" ignored
5831     # 1419: external declaration in primary source file
5832     # 10006: ignoring unknown option -fno-signed-zeros
5833     # 10148: ignoring unknown option -Wno-parentheses
5834     # 10156: ignoring option '-W'; no argument required
5835     # 13200: No EMMS instruction before call to function
5836     # 13203: No EMMS instruction before return from function
5837     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5838     # 11030: Warning unknown option --as-needed
5839     # 10156: ignoring option '-export'; no argument required
5840     check_ldflags -wd10156,11030
5841     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5842     enable ebp_available
5843     # The test above does not test linking
5844     enabled lto && disable symver_asm_label
5845     if enabled x86_32; then
5846         icc_version=$($cc -dumpversion)
5847         test ${icc_version%%.*} -ge 11 &&
5848             check_cflags -falign-stack=maintain-16-byte ||
5849             disable aligned_stack
5850     fi
5851 elif enabled ccc; then
5852     # disable some annoying warnings
5853     add_cflags -msg_disable bitnotint
5854     add_cflags -msg_disable mixfuncvoid
5855     add_cflags -msg_disable nonstandcast
5856     add_cflags -msg_disable unsupieee
5857 elif enabled gcc; then
5858     check_optflags -fno-tree-vectorize
5859     check_cflags -Werror=format-security
5860     check_cflags -Werror=implicit-function-declaration
5861     check_cflags -Werror=missing-prototypes
5862     check_cflags -Werror=return-type
5863     check_cflags -Werror=vla
5864     check_cflags -Wformat
5865     check_cflags -fdiagnostics-color=auto
5866     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5867 elif enabled llvm_gcc; then
5868     check_cflags -mllvm -stack-alignment=16
5869 elif enabled clang; then
5870     check_cflags -mllvm -stack-alignment=16
5871     check_cflags -Qunused-arguments
5872     check_cflags -Werror=implicit-function-declaration
5873     check_cflags -Werror=missing-prototypes
5874     check_cflags -Werror=return-type
5875 elif enabled cparser; then
5876     add_cflags -Wno-missing-variable-declarations
5877     add_cflags -Wno-empty-statement
5878 elif enabled armcc; then
5879     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5880     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5881     # 2523: use of inline assembly is deprecated
5882     add_cflags -W${armcc_opt},--diag_suppress=2523
5883     add_cflags -W${armcc_opt},--diag_suppress=1207
5884     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5885     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5886     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5887     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5888 elif enabled tms470; then
5889     add_cflags -pds=824 -pds=837
5890     disable inline_asm
5891 elif enabled pathscale; then
5892     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5893 elif enabled_any msvc icl; then
5894     enabled x86_32 && disable aligned_stack
5895     enabled_all x86_32 debug && add_cflags -Oy-
5896     enabled debug && add_ldflags -debug
5897     enable pragma_deprecated
5898     if enabled icl; then
5899         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5900         # (correctly) on icl 13.x.
5901         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5902             add_cflags -Qansi-alias
5903         # Some inline asm is not compilable in debug
5904         if enabled debug; then
5905             disable ebp_available
5906             disable ebx_available
5907         fi
5908     fi
5909     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5910     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5911     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5912     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5913     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5914     # MSVC 2013 and newer can handle it fine.
5915     # If this declspec fails, force including stdlib.h before the restrict redefinition
5916     # happens in config.h.
5917     if [ $_restrict != restrict ]; then
5918         check_cc <<EOF || add_cflags -FIstdlib.h
5919 __declspec($_restrict) void* foo(int);
5920 EOF
5921     fi
5922     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5923 fi
5924
5925 for pfx in "" host_; do
5926     varname=${pfx%_}cc_type
5927     eval "type=\$$varname"
5928     if [ $type = "msvc" ]; then
5929         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5930 static inline int foo(int a) { return a; }
5931 EOF
5932     fi
5933 done
5934
5935 case $as_type in
5936     clang)
5937         add_asflags -Qunused-arguments
5938     ;;
5939 esac
5940
5941 case $ld_type in
5942     clang)
5943         check_ldflags -Qunused-arguments
5944     ;;
5945 esac
5946
5947 case $target_os in
5948     osf1)
5949         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5950     ;;
5951     plan9)
5952         add_cppflags -Dmain=plan9_main
5953     ;;
5954 esac
5955
5956 enable frame_thread_encoder
5957
5958 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5959
5960 check_deps $CONFIG_LIST       \
5961            $CONFIG_EXTRA      \
5962            $HAVE_LIST         \
5963            $ALL_COMPONENTS    \
5964
5965 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"
5966
5967
5968 if test $target_os = "haiku"; then
5969     disable memalign
5970     disable posix_memalign
5971 fi
5972
5973 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5974     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5975     enable dxva2_lib
5976
5977 ! enabled_any memalign posix_memalign aligned_malloc &&
5978     enabled simd_align_16 && enable memalign_hack
5979
5980 # add_dep lib dep
5981 # -> enable ${lib}_deps_${dep}
5982 # -> add $dep to ${lib}_deps only once
5983 add_dep() {
5984     lib=$1
5985     dep=$2
5986     enabled "${lib}_deps_${dep}" && return 0
5987     enable  "${lib}_deps_${dep}"
5988     prepend "${lib}_deps" $dep
5989 }
5990
5991 # merge deps lib components
5992 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5993 merge_deps() {
5994     lib=$1
5995     shift
5996     for comp in $*; do
5997         enabled $comp || continue
5998         eval "dep=\"\$${comp}_deps\""
5999         for d in $dep; do
6000             add_dep $lib $d
6001         done
6002     done
6003 }
6004
6005 merge_deps libavfilter $FILTER_LIST
6006
6007 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6008
6009 for thread in $THREADS_LIST; do
6010     if enabled $thread; then
6011         test -n "$thread_type" &&
6012             die "ERROR: Only one thread type must be selected." ||
6013             thread_type="$thread"
6014     fi
6015 done
6016
6017 enabled zlib && add_cppflags -DZLIB_CONST
6018
6019 # conditional library dependencies, in linking order
6020 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6021 enabled aresample_filter    && prepend avfilter_deps "swresample"
6022 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6023 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6024 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6025 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6026 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6027 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6028 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6029 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6030 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6031 enabled pan_filter          && prepend avfilter_deps "swresample"
6032 enabled pp_filter           && prepend avfilter_deps "postproc"
6033 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6034 enabled resample_filter && prepend avfilter_deps "avresample"
6035 enabled sab_filter          && prepend avfilter_deps "swscale"
6036 enabled scale_filter    && prepend avfilter_deps "swscale"
6037 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6038 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6039 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6040 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6041 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6042 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6043 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6044
6045 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6046
6047 enabled opus_decoder    && prepend avcodec_deps "swresample"
6048
6049 expand_deps(){
6050     lib_deps=${1}_deps
6051     eval "deps=\$$lib_deps"
6052     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6053     unique $lib_deps
6054 }
6055
6056 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6057 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6058
6059 map 'expand_deps $v' $LIBRARY_LIST
6060
6061 echo "install prefix            $prefix"
6062 echo "source path               $source_path"
6063 echo "C compiler                $cc"
6064 echo "C library                 $libc_type"
6065 if test "$host_cc" != "$cc"; then
6066     echo "host C compiler           $host_cc"
6067     echo "host C library            $host_libc_type"
6068 fi
6069 echo "ARCH                      $arch ($cpu)"
6070 if test "$build_suffix" != ""; then
6071     echo "build suffix              $build_suffix"
6072 fi
6073 if test "$progs_suffix" != ""; then
6074     echo "progs suffix              $progs_suffix"
6075 fi
6076 if test "$extra_version" != ""; then
6077     echo "version string suffix     $extra_version"
6078 fi
6079 echo "big-endian                ${bigendian-no}"
6080 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6081 if enabled x86; then
6082     echo "${yasmexe}                      ${yasm-no}"
6083     echo "MMX enabled               ${mmx-no}"
6084     echo "MMXEXT enabled            ${mmxext-no}"
6085     echo "3DNow! enabled            ${amd3dnow-no}"
6086     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6087     echo "SSE enabled               ${sse-no}"
6088     echo "SSSE3 enabled             ${ssse3-no}"
6089     echo "AESNI enabled             ${aesni-no}"
6090     echo "AVX enabled               ${avx-no}"
6091     echo "XOP enabled               ${xop-no}"
6092     echo "FMA3 enabled              ${fma3-no}"
6093     echo "FMA4 enabled              ${fma4-no}"
6094     echo "i686 features enabled     ${i686-no}"
6095     echo "CMOV is fast              ${fast_cmov-no}"
6096     echo "EBX available             ${ebx_available-no}"
6097     echo "EBP available             ${ebp_available-no}"
6098 fi
6099 if enabled aarch64; then
6100     echo "NEON enabled              ${neon-no}"
6101     echo "VFP enabled               ${vfp-no}"
6102 fi
6103 if enabled arm; then
6104     echo "ARMv5TE enabled           ${armv5te-no}"
6105     echo "ARMv6 enabled             ${armv6-no}"
6106     echo "ARMv6T2 enabled           ${armv6t2-no}"
6107     echo "VFP enabled               ${vfp-no}"
6108     echo "NEON enabled              ${neon-no}"
6109     echo "THUMB enabled             ${thumb-no}"
6110 fi
6111 if enabled mips; then
6112     echo "MIPS FPU enabled          ${mipsfpu-no}"
6113     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6114     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6115     echo "MIPS MSA enabled          ${msa-no}"
6116     echo "LOONGSON MMI enabled      ${mmi-no}"
6117 fi
6118 if enabled ppc; then
6119     echo "AltiVec enabled           ${altivec-no}"
6120     echo "VSX enabled               ${vsx-no}"
6121     echo "POWER8 enabled            ${power8-no}"
6122     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6123     echo "dcbzl available           ${dcbzl-no}"
6124 fi
6125 echo "debug symbols             ${debug-no}"
6126 echo "strip symbols             ${stripping-no}"
6127 echo "optimize for size         ${small-no}"
6128 echo "optimizations             ${optimizations-no}"
6129 echo "static                    ${static-no}"
6130 echo "shared                    ${shared-no}"
6131 echo "postprocessing support    ${postproc-no}"
6132 echo "new filter support        ${avfilter-no}"
6133 echo "network support           ${network-no}"
6134 echo "threading support         ${thread_type-no}"
6135 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6136 echo "SDL support               ${sdl-no}"
6137 echo "opencl enabled            ${opencl-no}"
6138 echo "texi2html enabled         ${texi2html-no}"
6139 echo "perl enabled              ${perl-no}"
6140 echo "pod2man enabled           ${pod2man-no}"
6141 echo "makeinfo enabled          ${makeinfo-no}"
6142 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6143 test -n "$random_seed" &&
6144     echo "random seed               ${random_seed}"
6145 echo
6146
6147 echo "Enabled programs:"
6148 print_enabled '' $PROGRAM_LIST | print_in_columns
6149 echo
6150
6151 echo "External libraries:"
6152 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6153 echo
6154
6155 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6156     echo "Enabled ${type}s:"
6157     eval list=\$$(toupper $type)_LIST
6158     print_enabled '_*' $list | print_in_columns
6159     echo
6160 done
6161
6162 license="LGPL version 2.1 or later"
6163 if enabled nonfree; then
6164     license="nonfree and unredistributable"
6165 elif enabled gplv3; then
6166     license="GPL version 3 or later"
6167 elif enabled lgplv3; then
6168     license="LGPL version 3 or later"
6169 elif enabled gpl; then
6170     license="GPL version 2 or later"
6171 fi
6172
6173 echo "License: $license"
6174
6175 echo "Creating config.mak, config.h, and doc/config.texi..."
6176
6177 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6178
6179 enabled stripping || strip="echo skipping strip"
6180
6181 config_files="$TMPH config.mak doc/config.texi"
6182
6183 cat > config.mak <<EOF
6184 # Automatically generated by configure - do not modify!
6185 ifndef FFMPEG_CONFIG_MAK
6186 FFMPEG_CONFIG_MAK=1
6187 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6188 prefix=$prefix
6189 LIBDIR=\$(DESTDIR)$libdir
6190 SHLIBDIR=\$(DESTDIR)$shlibdir
6191 INCDIR=\$(DESTDIR)$incdir
6192 BINDIR=\$(DESTDIR)$bindir
6193 DATADIR=\$(DESTDIR)$datadir
6194 DOCDIR=\$(DESTDIR)$docdir
6195 MANDIR=\$(DESTDIR)$mandir
6196 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6197 SRC_PATH=$source_path
6198 ifndef MAIN_MAKEFILE
6199 SRC_PATH:=\$(SRC_PATH:.%=..%)
6200 endif
6201 CC_IDENT=$cc_ident
6202 ARCH=$arch
6203 INTRINSICS=$intrinsics
6204 CC=$cc
6205 CXX=$cxx
6206 AS=$as
6207 OBJCC=$objcc
6208 LD=$ld
6209 DEPCC=$dep_cc
6210 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6211 DEPAS=$as
6212 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6213 YASM=$yasmexe
6214 DEPYASM=$yasmexe
6215 AR=$ar
6216 ARFLAGS=$arflags
6217 AR_O=$ar_o
6218 RANLIB=$ranlib
6219 STRIP=$strip
6220 CP=cp -p
6221 LN_S=$ln_s
6222 CPPFLAGS=$CPPFLAGS
6223 CFLAGS=$CFLAGS
6224 CXXFLAGS=$CXXFLAGS
6225 OBJCFLAGS=$OBJCFLAGS
6226 ASFLAGS=$ASFLAGS
6227 AS_C=$AS_C
6228 AS_O=$AS_O
6229 OBJCC_C=$OBJCC_C
6230 OBJCC_E=$OBJCC_E
6231 OBJCC_O=$OBJCC_O
6232 CC_C=$CC_C
6233 CC_E=$CC_E
6234 CC_O=$CC_O
6235 CXX_C=$CXX_C
6236 CXX_O=$CXX_O
6237 LD_O=$LD_O
6238 LD_LIB=$LD_LIB
6239 LD_PATH=$LD_PATH
6240 DLLTOOL=$dlltool
6241 WINDRES=$windres
6242 DEPWINDRES=$dep_cc
6243 DOXYGEN=$doxygen
6244 LDFLAGS=$LDFLAGS
6245 LDEXEFLAGS=$LDEXEFLAGS
6246 LDLIBFLAGS=$LDLIBFLAGS
6247 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6248 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6249 YASMFLAGS=$YASMFLAGS
6250 BUILDSUF=$build_suffix
6251 PROGSSUF=$progs_suffix
6252 FULLNAME=$FULLNAME
6253 LIBPREF=$LIBPREF
6254 LIBSUF=$LIBSUF
6255 LIBNAME=$LIBNAME
6256 SLIBPREF=$SLIBPREF
6257 SLIBSUF=$SLIBSUF
6258 EXESUF=$EXESUF
6259 EXTRA_VERSION=$extra_version
6260 CCDEP=$CCDEP
6261 CXXDEP=$CXXDEP
6262 CCDEP_FLAGS=$CCDEP_FLAGS
6263 ASDEP=$ASDEP
6264 ASDEP_FLAGS=$ASDEP_FLAGS
6265 CC_DEPFLAGS=$CC_DEPFLAGS
6266 AS_DEPFLAGS=$AS_DEPFLAGS
6267 HOSTCC=$host_cc
6268 HOSTLD=$host_ld
6269 HOSTCFLAGS=$host_cflags
6270 HOSTCPPFLAGS=$host_cppflags
6271 HOSTEXESUF=$HOSTEXESUF
6272 HOSTLDFLAGS=$host_ldflags
6273 HOSTLIBS=$host_libs
6274 DEPHOSTCC=$host_cc
6275 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6276 HOSTCCDEP=$HOSTCCDEP
6277 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6278 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6279 HOSTCC_C=$HOSTCC_C
6280 HOSTCC_O=$HOSTCC_O
6281 HOSTLD_O=$HOSTLD_O
6282 TARGET_EXEC=$target_exec $target_exec_args
6283 TARGET_PATH=$target_path
6284 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6285 CFLAGS-ffplay=$sdl_cflags
6286 ZLIB=$($ldflags_filter -lz)
6287 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6288 EXTRALIBS=$extralibs
6289 COMPAT_OBJS=$compat_objs
6290 EXEOBJS=$exeobjs
6291 INSTALL=$install
6292 LIBTARGET=${LIBTARGET}
6293 SLIBNAME=${SLIBNAME}
6294 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6295 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6296 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6297 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6298 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6299 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6300 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6301 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6302 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6303 NOREDZONE_FLAGS=$noredzone_flags
6304 EOF
6305
6306 get_version(){
6307     lcname=lib${1}
6308     name=$(toupper $lcname)
6309     file=$source_path/$lcname/version.h
6310     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6311     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6312     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6313     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6314     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6315     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6316 }
6317
6318 map 'get_version $v' $LIBRARY_LIST
6319
6320 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6321
6322 print_program_libs(){
6323     eval "program_libs=\$${1}_libs"
6324     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6325 }
6326
6327 map 'print_program_libs $v' $PROGRAM_LIST
6328
6329 cat > $TMPH <<EOF
6330 /* Automatically generated by configure - do not modify! */
6331 #ifndef FFMPEG_CONFIG_H
6332 #define FFMPEG_CONFIG_H
6333 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6334 #define FFMPEG_LICENSE "$(c_escape $license)"
6335 #define CONFIG_THIS_YEAR 2015
6336 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6337 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6338 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6339 #define av_restrict $_restrict
6340 #define EXTERN_PREFIX "${extern_prefix}"
6341 #define EXTERN_ASM ${extern_prefix}
6342 #define BUILDSUF "$build_suffix"
6343 #define SLIBSUF "$SLIBSUF"
6344 #define HAVE_MMX2 HAVE_MMXEXT
6345 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6346 EOF
6347
6348 test -n "$assert_level" &&
6349     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6350
6351 test -n "$malloc_prefix" &&
6352     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6353
6354 if enabled yasm; then
6355     append config_files $TMPASM
6356     printf '' >$TMPASM
6357 fi
6358
6359 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6360
6361
6362 mkdir -p doc
6363 mkdir -p tests
6364 mkdir -p tests/api
6365 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6366
6367 print_config ARCH_   "$config_files" $ARCH_LIST
6368 print_config HAVE_   "$config_files" $HAVE_LIST
6369 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6370                                      $CONFIG_EXTRA      \
6371                                      $ALL_COMPONENTS    \
6372
6373 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6374 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6375
6376 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6377 cp_if_changed $TMPH config.h
6378 touch .config
6379
6380 enabled yasm && cp_if_changed $TMPASM config.asm
6381
6382 cat > $TMPH <<EOF
6383 /* Generated by ffconf */
6384 #ifndef AVUTIL_AVCONFIG_H
6385 #define AVUTIL_AVCONFIG_H
6386 EOF
6387
6388 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6389
6390 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6391
6392 cp_if_changed $TMPH libavutil/avconfig.h
6393
6394 if test -n "$WARNINGS"; then
6395     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6396     enabled fatal_warnings && exit 1
6397 fi
6398
6399 # build pkg-config files
6400
6401 lib_version(){
6402     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6403 }
6404
6405 pkgconfig_generate(){
6406     name=$1
6407     shortname=${name#lib}${build_suffix}
6408     comment=$2
6409     version=$3
6410     libs=$4
6411     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6412     requires=${requires%, }
6413     enabled ${name#lib} || return 0
6414     mkdir -p $name
6415     cat <<EOF > $name/$name${build_suffix}.pc
6416 prefix=$prefix
6417 exec_prefix=\${prefix}
6418 libdir=$libdir
6419 includedir=$incdir
6420
6421 Name: $name
6422 Description: $comment
6423 Version: $version
6424 Requires: $(enabled shared || echo $requires)
6425 Requires.private: $(enabled shared && echo $requires)
6426 Conflicts:
6427 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6428 Libs.private: $(enabled shared && echo $libs)
6429 Cflags: -I\${includedir}
6430 EOF
6431
6432 mkdir -p doc/examples/pc-uninstalled
6433 includedir=${source_path}
6434 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6435     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6436 prefix=
6437 exec_prefix=
6438 libdir=\${pcfiledir}/../../../$name
6439 includedir=${includedir}
6440
6441 Name: $name
6442 Description: $comment
6443 Version: $version
6444 Requires: $requires
6445 Conflicts:
6446 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6447 Cflags: -I\${includedir}
6448 EOF
6449 }
6450
6451 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6452 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6453 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6454 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6455 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6456 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6457 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6458 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6459 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"