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-nvenc           enable NVIDIA NVENC support [no]
 283   --enable-openal          enable OpenAL 1.1 capture support [no]
 284   --enable-opencl          enable OpenCL code
 285   --enable-opengl          enable OpenGL rendering [no]
 286   --enable-openssl         enable openssl, needed for https support
 287                            if gnutls is not used [no]
 288   --disable-schannel       disable SChannel SSP, needed for TLS support on
 289                            Windows if openssl and gnutls are not used [autodetect]
 290   --disable-sdl            disable sdl [autodetect]
 291   --disable-securetransport disable Secure Transport, needed for TLS support
 292                            on OSX if openssl and gnutls are not used [autodetect]
 293   --enable-x11grab         enable X11 grabbing (legacy) [no]
 294   --disable-xlib           disable xlib [autodetect]
 295   --disable-zlib           disable zlib [autodetect]
 296
 297 Toolchain options:
 298   --arch=ARCH              select architecture [$arch]
 299   --cpu=CPU                select the minimum required CPU (affects
 300                            instruction selection, may crash on older CPUs)
 301   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 302   --progs-suffix=SUFFIX    program name suffix []
 303   --enable-cross-compile   assume a cross-compiler is used
 304   --sysroot=PATH           root of cross-build tree
 305   --sysinclude=PATH        location of cross-build system headers
 306   --target-os=OS           compiler targets OS [$target_os]
 307   --target-exec=CMD        command to run executables on target
 308   --target-path=DIR        path to view of build directory on target
 309   --target-samples=DIR     path to samples directory on target
 310   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 311   --toolchain=NAME         set tool defaults according to NAME
 312   --nm=NM                  use nm tool NM [$nm_default]
 313   --ar=AR                  use archive tool AR [$ar_default]
 314   --as=AS                  use assembler AS [$as_default]
 315   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 316   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 317   --cc=CC                  use C compiler CC [$cc_default]
 318   --cxx=CXX                use C compiler CXX [$cxx_default]
 319   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 320   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 321   --ld=LD                  use linker LD [$ld_default]
 322   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 323   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 324   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 325   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 326   --host-cc=HOSTCC         use host C compiler HOSTCC
 327   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 328   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 329   --host-ld=HOSTLD         use host linker HOSTLD
 330   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 331   --host-libs=HLIBS        use libs HLIBS when linking for host
 332   --host-os=OS             compiler host OS [$target_os]
 333   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 334   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 335   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 336   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 337   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 338   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 339   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 340   --extra-version=STRING   version string suffix []
 341   --optflags=OPTFLAGS      override optimization-related compiler flags
 342   --build-suffix=SUFFIX    library name suffix []
 343   --enable-pic             build position-independent code
 344   --enable-thumb           compile for Thumb instruction set
 345   --enable-lto             use link-time optimization
 346   --env="ENV=override"     override the environment variables
 347
 348 Advanced options (experts only):
 349   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 350   --custom-allocator=NAME  use a supported custom allocator
 351   --disable-symver         disable symbol versioning
 352   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 353   --disable-safe-bitstream-reader
 354                            disable buffer boundary checking in bitreaders
 355                            (faster, but may crash)
 356   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 357   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 358
 359 Optimization options (experts only):
 360   --disable-asm            disable all assembly optimizations
 361   --disable-altivec        disable AltiVec optimizations
 362   --disable-vsx            disable VSX optimizations
 363   --disable-power8         disable POWER8 optimizations
 364   --disable-amd3dnow       disable 3DNow! optimizations
 365   --disable-amd3dnowext    disable 3DNow! extended optimizations
 366   --disable-mmx            disable MMX optimizations
 367   --disable-mmxext         disable MMXEXT optimizations
 368   --disable-sse            disable SSE optimizations
 369   --disable-sse2           disable SSE2 optimizations
 370   --disable-sse3           disable SSE3 optimizations
 371   --disable-ssse3          disable SSSE3 optimizations
 372   --disable-sse4           disable SSE4 optimizations
 373   --disable-sse42          disable SSE4.2 optimizations
 374   --disable-avx            disable AVX optimizations
 375   --disable-xop            disable XOP optimizations
 376   --disable-fma3           disable FMA3 optimizations
 377   --disable-fma4           disable FMA4 optimizations
 378   --disable-avx2           disable AVX2 optimizations
 379   --disable-aesni          disable AESNI optimizations
 380   --disable-armv5te        disable armv5te optimizations
 381   --disable-armv6          disable armv6 optimizations
 382   --disable-armv6t2        disable armv6t2 optimizations
 383   --disable-vfp            disable VFP optimizations
 384   --disable-neon           disable NEON optimizations
 385   --disable-inline-asm     disable use of inline assembly
 386   --disable-yasm           disable use of nasm/yasm assembly
 387   --disable-mips64r6       disable MIPS64R6 optimizations
 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     nvenc
1508     openal
1509     opencl
1510     opengl
1511     openssl
1512     schannel
1513     sdl
1514     securetransport
1515     x11grab
1516     xlib
1517     zlib
1518 "
1519
1520 DOCUMENT_LIST="
1521     doc
1522     htmlpages
1523     manpages
1524     podpages
1525     txtpages
1526 "
1527
1528 FEATURE_LIST="
1529     ftrapv
1530     gray
1531     hardcoded_tables
1532     runtime_cpudetect
1533     safe_bitstream_reader
1534     shared
1535     small
1536     static
1537     swscale_alpha
1538 "
1539
1540 HWACCEL_LIST="
1541     d3d11va
1542     dxva2
1543     vaapi
1544     vda
1545     vdpau
1546     videotoolbox
1547     xvmc
1548 "
1549
1550 LIBRARY_LIST="
1551     avcodec
1552     avdevice
1553     avfilter
1554     avformat
1555     avresample
1556     avutil
1557     postproc
1558     swresample
1559     swscale
1560 "
1561
1562 LICENSE_LIST="
1563     gpl
1564     nonfree
1565     version3
1566 "
1567
1568 PROGRAM_LIST="
1569     ffplay
1570     ffprobe
1571     ffserver
1572     ffmpeg
1573 "
1574
1575 SUBSYSTEM_LIST="
1576     dct
1577     dwt
1578     error_resilience
1579     faan
1580     fast_unaligned
1581     fft
1582     lsp
1583     lzo
1584     mdct
1585     pixelutils
1586     network
1587     rdft
1588 "
1589
1590 CONFIG_LIST="
1591     $COMPONENT_LIST
1592     $DOCUMENT_LIST
1593     $EXAMPLE_LIST
1594     $EXTERNAL_LIBRARY_LIST
1595     $FEATURE_LIST
1596     $HWACCEL_LIST
1597     $LICENSE_LIST
1598     $LIBRARY_LIST
1599     $PROGRAM_LIST
1600     $SUBSYSTEM_LIST
1601     fontconfig
1602     incompatible_libav_abi
1603     memalign_hack
1604     memory_poisoning
1605     neon_clobber_test
1606     pic
1607     pod2man
1608     raise_major
1609     thumb
1610     valgrind_backtrace
1611     xmm_clobber_test
1612 "
1613
1614 THREADS_LIST="
1615     pthreads
1616     os2threads
1617     w32threads
1618 "
1619
1620 ATOMICS_LIST="
1621     atomics_gcc
1622     atomics_suncc
1623     atomics_win32
1624 "
1625
1626 ARCH_LIST="
1627     aarch64
1628     alpha
1629     arm
1630     avr32
1631     avr32_ap
1632     avr32_uc
1633     bfin
1634     ia64
1635     m68k
1636     mips
1637     mips64
1638     parisc
1639     ppc
1640     ppc64
1641     s390
1642     sh4
1643     sparc
1644     sparc64
1645     tilegx
1646     tilepro
1647     tomi
1648     x86
1649     x86_32
1650     x86_64
1651 "
1652
1653 ARCH_EXT_LIST_ARM="
1654     armv5te
1655     armv6
1656     armv6t2
1657     armv8
1658     neon
1659     vfp
1660     vfpv3
1661     setend
1662 "
1663
1664 ARCH_EXT_LIST_MIPS="
1665     mipsfpu
1666     mips32r2
1667     mips64r6
1668     mipsdsp
1669     mipsdspr2
1670     msa
1671 "
1672
1673 ARCH_EXT_LIST_LOONGSON="
1674     loongson2
1675     loongson3
1676     mmi
1677 "
1678
1679 ARCH_EXT_LIST_X86_SIMD="
1680     aesni
1681     amd3dnow
1682     amd3dnowext
1683     avx
1684     avx2
1685     fma3
1686     fma4
1687     mmx
1688     mmxext
1689     sse
1690     sse2
1691     sse3
1692     sse4
1693     sse42
1694     ssse3
1695     xop
1696 "
1697
1698 ARCH_EXT_LIST_PPC="
1699     altivec
1700     dcbzl
1701     ldbrx
1702     power8
1703     ppc4xx
1704     vsx
1705 "
1706
1707 ARCH_EXT_LIST_X86="
1708     $ARCH_EXT_LIST_X86_SIMD
1709     cpunop
1710     i686
1711 "
1712
1713 ARCH_EXT_LIST="
1714     $ARCH_EXT_LIST_ARM
1715     $ARCH_EXT_LIST_PPC
1716     $ARCH_EXT_LIST_X86
1717     $ARCH_EXT_LIST_MIPS
1718     $ARCH_EXT_LIST_LOONGSON
1719 "
1720
1721 ARCH_FEATURES="
1722     aligned_stack
1723     fast_64bit
1724     fast_clz
1725     fast_cmov
1726     local_aligned_8
1727     local_aligned_16
1728     local_aligned_32
1729     simd_align_16
1730 "
1731
1732 BUILTIN_LIST="
1733     atomic_cas_ptr
1734     atomic_compare_exchange
1735     machine_rw_barrier
1736     MemoryBarrier
1737     mm_empty
1738     rdtsc
1739     sarestart
1740     sync_val_compare_and_swap
1741 "
1742 HAVE_LIST_CMDLINE="
1743     inline_asm
1744     symver
1745     yasm
1746 "
1747
1748 HAVE_LIST_PUB="
1749     bigendian
1750     fast_unaligned
1751     incompatible_libav_abi
1752 "
1753
1754 HEADERS_LIST="
1755     alsa_asoundlib_h
1756     altivec_h
1757     arpa_inet_h
1758     asm_types_h
1759     cdio_paranoia_h
1760     cdio_paranoia_paranoia_h
1761     dev_bktr_ioctl_bt848_h
1762     dev_bktr_ioctl_meteor_h
1763     dev_ic_bt8xx_h
1764     dev_video_bktr_ioctl_bt848_h
1765     dev_video_meteor_ioctl_meteor_h
1766     direct_h
1767     dirent_h
1768     dlfcn_h
1769     d3d11_h
1770     dxva_h
1771     ES2_gl_h
1772     gsm_h
1773     io_h
1774     mach_mach_time_h
1775     machine_ioctl_bt848_h
1776     machine_ioctl_meteor_h
1777     malloc_h
1778     openjpeg_1_5_openjpeg_h
1779     OpenGL_gl3_h
1780     poll_h
1781     sndio_h
1782     soundcard_h
1783     sys_mman_h
1784     sys_param_h
1785     sys_resource_h
1786     sys_select_h
1787     sys_soundcard_h
1788     sys_time_h
1789     sys_un_h
1790     sys_videoio_h
1791     termios_h
1792     udplite_h
1793     unistd_h
1794     valgrind_valgrind_h
1795     windows_h
1796     winsock2_h
1797 "
1798
1799 INTRINSICS_LIST="
1800     intrinsics_neon
1801 "
1802
1803 COMPLEX_FUNCS="
1804     cabs
1805     cexp
1806 "
1807
1808 MATH_FUNCS="
1809     atanf
1810     atan2f
1811     cbrt
1812     cbrtf
1813     copysign
1814     cosf
1815     erf
1816     exp2
1817     exp2f
1818     expf
1819     hypot
1820     isinf
1821     isnan
1822     ldexpf
1823     llrint
1824     llrintf
1825     log2
1826     log2f
1827     log10f
1828     lrint
1829     lrintf
1830     powf
1831     rint
1832     round
1833     roundf
1834     sinf
1835     trunc
1836     truncf
1837 "
1838
1839 SYSTEM_FUNCS="
1840     access
1841     aligned_malloc
1842     clock_gettime
1843     closesocket
1844     CommandLineToArgvW
1845     CoTaskMemFree
1846     CryptGenRandom
1847     dlopen
1848     fcntl
1849     flt_lim
1850     fork
1851     getaddrinfo
1852     gethrtime
1853     getopt
1854     GetProcessAffinityMask
1855     GetProcessMemoryInfo
1856     GetProcessTimes
1857     getrusage
1858     GetSystemTimeAsFileTime
1859     gettimeofday
1860     glob
1861     glXGetProcAddress
1862     gmtime_r
1863     inet_aton
1864     isatty
1865     jack_port_get_latency_range
1866     kbhit
1867     localtime_r
1868     lstat
1869     lzo1x_999_compress
1870     mach_absolute_time
1871     MapViewOfFile
1872     memalign
1873     mkstemp
1874     mmap
1875     mprotect
1876     nanosleep
1877     PeekNamedPipe
1878     posix_memalign
1879     pthread_cancel
1880     sched_getaffinity
1881     SetConsoleTextAttribute
1882     SetConsoleCtrlHandler
1883     setmode
1884     setrlimit
1885     Sleep
1886     strerror_r
1887     sysconf
1888     sysctl
1889     usleep
1890     UTGetOSTypeFromString
1891     VirtualAlloc
1892     wglGetProcAddress
1893 "
1894
1895 TOOLCHAIN_FEATURES="
1896     as_dn_directive
1897     as_func
1898     as_object_arch
1899     asm_mod_q
1900     attribute_may_alias
1901     attribute_packed
1902     ebp_available
1903     ebx_available
1904     gnu_as
1905     gnu_windres
1906     ibm_asm
1907     inline_asm_labels
1908     inline_asm_nonlocal_labels
1909     inline_asm_direct_symbol_refs
1910     pragma_deprecated
1911     rsync_contimeout
1912     symver_asm_label
1913     symver_gnu_asm
1914     vfp_args
1915     xform_asm
1916     xmm_clobbers
1917 "
1918
1919 TYPES_LIST="
1920     CONDITION_VARIABLE_Ptr
1921     socklen_t
1922     struct_addrinfo
1923     struct_group_source_req
1924     struct_ip_mreq_source
1925     struct_ipv6_mreq
1926     struct_pollfd
1927     struct_rusage_ru_maxrss
1928     struct_sctp_event_subscribe
1929     struct_sockaddr_in6
1930     struct_sockaddr_sa_len
1931     struct_sockaddr_storage
1932     struct_stat_st_mtim_tv_nsec
1933     struct_v4l2_frmivalenum_discrete
1934 "
1935
1936 HAVE_LIST="
1937     $ARCH_EXT_LIST
1938     $(add_suffix _external $ARCH_EXT_LIST)
1939     $(add_suffix _inline   $ARCH_EXT_LIST)
1940     $ARCH_FEATURES
1941     $ATOMICS_LIST
1942     $BUILTIN_LIST
1943     $COMPLEX_FUNCS
1944     $HAVE_LIST_CMDLINE
1945     $HAVE_LIST_PUB
1946     $HEADERS_LIST
1947     $INTRINSICS_LIST
1948     $MATH_FUNCS
1949     $SYSTEM_FUNCS
1950     $THREADS_LIST
1951     $TOOLCHAIN_FEATURES
1952     $TYPES_LIST
1953     atomics_native
1954     dos_paths
1955     dxva2api_cobj
1956     dxva2_lib
1957     winrt
1958     libc_msvcrt
1959     libdc1394_1
1960     libdc1394_2
1961     makeinfo
1962     makeinfo_html
1963     perl
1964     pod2man
1965     sdl
1966     section_data_rel_ro
1967     texi2html
1968     threads
1969     vaapi_x11
1970     vdpau_x11
1971     xlib
1972 "
1973
1974 # options emitted with CONFIG_ prefix but not available on the command line
1975 CONFIG_EXTRA="
1976     aandcttables
1977     ac3dsp
1978     audio_frame_queue
1979     audiodsp
1980     blockdsp
1981     bswapdsp
1982     cabac
1983     dvprofile
1984     exif
1985     faandct
1986     faanidct
1987     fdctdsp
1988     flacdsp
1989     fmtconvert
1990     frame_thread_encoder
1991     g722dsp
1992     golomb
1993     gplv3
1994     h263dsp
1995     h264chroma
1996     h264dsp
1997     h264pred
1998     h264qpel
1999     hpeldsp
2000     huffman
2001     huffyuvdsp
2002     huffyuvencdsp
2003     idctdsp
2004     iirfilter
2005     imdct15
2006     intrax8
2007     ividsp
2008     jpegtables
2009     libx262
2010     lgplv3
2011     llauddsp
2012     llviddsp
2013     lpc
2014     lzf
2015     me_cmp
2016     mpeg_er
2017     mpegaudio
2018     mpegaudiodsp
2019     mpegvideo
2020     mpegvideoenc
2021     mss34dsp
2022     pixblockdsp
2023     qpeldsp
2024     qsv
2025     qsvdec
2026     qsvenc
2027     rangecoder
2028     riffdec
2029     riffenc
2030     rtpdec
2031     rtpenc_chain
2032     rv34dsp
2033     sinewin
2034     snappy
2035     startcode
2036     texturedsp
2037     texturedspenc
2038     tpeldsp
2039     videodsp
2040     vp3dsp
2041     vp56dsp
2042     vp8dsp
2043     wma_freqs
2044     wmv2dsp
2045 "
2046
2047 CMDLINE_SELECT="
2048     $ARCH_EXT_LIST
2049     $CONFIG_LIST
2050     $HAVE_LIST_CMDLINE
2051     $THREADS_LIST
2052     asm
2053     cross_compile
2054     debug
2055     extra_warnings
2056     logging
2057     lto
2058     optimizations
2059     rpath
2060     stripping
2061 "
2062
2063 PATHS_LIST="
2064     bindir
2065     datadir
2066     docdir
2067     incdir
2068     libdir
2069     mandir
2070     pkgconfigdir
2071     prefix
2072     shlibdir
2073 "
2074
2075 CMDLINE_SET="
2076     $PATHS_LIST
2077     ar
2078     arch
2079     as
2080     assert_level
2081     build_suffix
2082     cc
2083     objcc
2084     cpu
2085     cross_prefix
2086     custom_allocator
2087     cxx
2088     dep_cc
2089     doxygen
2090     env
2091     extra_version
2092     gas
2093     host_cc
2094     host_cflags
2095     host_ld
2096     host_ldflags
2097     host_libs
2098     host_os
2099     install
2100     ld
2101     logfile
2102     malloc_prefix
2103     nm
2104     optflags
2105     pkg_config
2106     pkg_config_flags
2107     progs_suffix
2108     random_seed
2109     ranlib
2110     samples
2111     strip
2112     sws_max_filter_size
2113     sysinclude
2114     sysroot
2115     target_exec
2116     target_os
2117     target_path
2118     target_samples
2119     tempprefix
2120     toolchain
2121     valgrind
2122     yasmexe
2123 "
2124
2125 CMDLINE_APPEND="
2126     extra_cflags
2127     extra_cxxflags
2128     extra_objcflags
2129     host_cppflags
2130 "
2131
2132 # code dependency declarations
2133
2134 # architecture extensions
2135
2136 armv5te_deps="arm"
2137 armv6_deps="arm"
2138 armv6t2_deps="arm"
2139 armv8_deps="aarch64"
2140 neon_deps_any="aarch64 arm"
2141 intrinsics_neon_deps="neon"
2142 vfp_deps_any="aarch64 arm"
2143 vfpv3_deps="vfp"
2144 setend_deps="arm"
2145
2146 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2147
2148 mipsfpu_deps="mips"
2149 mipsdsp_deps="mips"
2150 mipsdspr2_deps="mips"
2151 mips32r2_deps="mips"
2152 mips64r6_deps="mips"
2153 msa_deps="mips"
2154 mmi_deps="mips"
2155
2156 altivec_deps="ppc"
2157 dcbzl_deps="ppc"
2158 ldbrx_deps="ppc"
2159 ppc4xx_deps="ppc"
2160 vsx_deps="altivec"
2161 power8_deps="vsx"
2162
2163 cpunop_deps="i686"
2164 x86_64_select="i686"
2165 x86_64_suggest="fast_cmov"
2166
2167 amd3dnow_deps="mmx"
2168 amd3dnowext_deps="amd3dnow"
2169 i686_deps="x86"
2170 mmx_deps="x86"
2171 mmxext_deps="mmx"
2172 sse_deps="mmxext"
2173 sse2_deps="sse"
2174 sse3_deps="sse2"
2175 ssse3_deps="sse3"
2176 sse4_deps="ssse3"
2177 sse42_deps="sse4"
2178 aesni_deps="sse42"
2179 avx_deps="sse42"
2180 xop_deps="avx"
2181 fma3_deps="avx"
2182 fma4_deps="avx"
2183 avx2_deps="avx"
2184
2185 mmx_external_deps="yasm"
2186 mmx_inline_deps="inline_asm"
2187 mmx_suggest="mmx_external mmx_inline"
2188
2189 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2190     eval dep=\$${ext}_deps
2191     eval ${ext}_external_deps='"${dep}_external"'
2192     eval ${ext}_inline_deps='"${dep}_inline"'
2193     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2194 done
2195
2196 aligned_stack_if_any="aarch64 ppc x86"
2197 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2198 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2199 fast_unaligned_if_any="aarch64 ppc x86"
2200 simd_align_16_if_any="altivec neon sse"
2201
2202 # system capabilities
2203 symver_if_any="symver_asm_label symver_gnu_asm"
2204 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2205
2206 # threading support
2207 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2208 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2209 atomics_win32_if="MemoryBarrier"
2210 atomics_native_if_any="$ATOMICS_LIST"
2211 w32threads_deps="atomics_native"
2212 threads_if_any="$THREADS_LIST"
2213
2214 # subsystems
2215 dct_select="rdft"
2216 error_resilience_select="me_cmp"
2217 faandct_deps="faan fdctdsp"
2218 faanidct_deps="faan idctdsp"
2219 frame_thread_encoder_deps="encoders threads"
2220 intrax8_select="error_resilience"
2221 mdct_select="fft"
2222 rdft_select="fft"
2223 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2224 mpeg_er_select="error_resilience"
2225 mpegaudio_select="mpegaudiodsp"
2226 mpegaudiodsp_select="dct"
2227 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2228 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2229 qsvdec_select="qsv"
2230 qsvenc_select="qsv"
2231
2232 # decoders / encoders
2233 aac_decoder_select="imdct15 mdct sinewin"
2234 aac_fixed_decoder_select="mdct sinewin"
2235 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2236 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2237 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2238 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2239 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2240 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2241 adpcm_g722_decoder_select="g722dsp"
2242 adpcm_g722_encoder_select="g722dsp"
2243 aic_decoder_select="golomb idctdsp"
2244 alac_encoder_select="lpc"
2245 als_decoder_select="bswapdsp"
2246 amrnb_decoder_select="lsp"
2247 amrwb_decoder_select="lsp"
2248 amv_decoder_select="sp5x_decoder exif"
2249 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2250 ape_decoder_select="bswapdsp llauddsp"
2251 apng_decoder_select="zlib"
2252 apng_encoder_select="huffyuvencdsp zlib"
2253 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2254 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2255 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2256 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2257 atrac1_decoder_select="mdct sinewin"
2258 atrac3_decoder_select="mdct"
2259 atrac3p_decoder_select="mdct sinewin"
2260 avrn_decoder_select="exif jpegtables"
2261 bink_decoder_select="blockdsp hpeldsp"
2262 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2263 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2264 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2265 cllc_decoder_select="bswapdsp"
2266 comfortnoise_encoder_select="lpc"
2267 cook_decoder_select="audiodsp mdct sinewin"
2268 cscd_decoder_select="lzo"
2269 cscd_decoder_suggest="zlib"
2270 dca_decoder_select="fmtconvert mdct"
2271 dds_decoder_select="texturedsp"
2272 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2273 dnxhd_decoder_select="blockdsp idctdsp"
2274 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2275 dvvideo_decoder_select="dvprofile idctdsp"
2276 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2277 dxa_decoder_select="zlib"
2278 dxv_decoder_select="lzf texturedsp"
2279 eac3_decoder_select="ac3_decoder"
2280 eac3_encoder_select="ac3_encoder"
2281 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2282 eatgq_decoder_select="aandcttables"
2283 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2284 exr_decoder_select="zlib"
2285 ffv1_decoder_select="golomb rangecoder"
2286 ffv1_encoder_select="rangecoder"
2287 ffvhuff_decoder_select="huffyuv_decoder"
2288 ffvhuff_encoder_select="huffyuv_encoder"
2289 fic_decoder_select="golomb"
2290 flac_decoder_select="flacdsp golomb"
2291 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2292 flashsv_decoder_select="zlib"
2293 flashsv_encoder_select="zlib"
2294 flashsv2_encoder_select="zlib"
2295 flashsv2_decoder_select="zlib"
2296 flv_decoder_select="h263_decoder"
2297 flv_encoder_select="h263_encoder"
2298 fourxm_decoder_select="blockdsp bswapdsp"
2299 fraps_decoder_select="bswapdsp huffman"
2300 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2301 g729_decoder_select="audiodsp"
2302 h261_decoder_select="mpegvideo"
2303 h261_encoder_select="aandcttables mpegvideoenc"
2304 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2305 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2306 h263i_decoder_select="h263_decoder"
2307 h263p_decoder_select="h263_decoder"
2308 h263p_encoder_select="h263_encoder"
2309 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2310 h264_decoder_suggest="error_resilience"
2311 h264_qsv_decoder_deps="libmfx"
2312 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2313 h264_qsv_encoder_deps="libmfx"
2314 h264_qsv_encoder_select="qsvenc"
2315 hap_decoder_select="snappy texturedsp"
2316 hap_encoder_deps="libsnappy"
2317 hap_encoder_select="texturedspenc"
2318 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2319 hevc_qsv_encoder_deps="libmfx"
2320 hevc_qsv_decoder_deps="libmfx"
2321 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2322 hevc_qsv_encoder_select="qsvenc"
2323 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2324 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2325 iac_decoder_select="imc_decoder"
2326 imc_decoder_select="bswapdsp fft mdct sinewin"
2327 indeo3_decoder_select="hpeldsp"
2328 indeo4_decoder_select="ividsp"
2329 indeo5_decoder_select="ividsp"
2330 interplay_video_decoder_select="hpeldsp"
2331 jpegls_decoder_select="golomb mjpeg_decoder"
2332 jpegls_encoder_select="golomb"
2333 jv_decoder_select="blockdsp"
2334 lagarith_decoder_select="huffyuvdsp"
2335 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2336 loco_decoder_select="golomb"
2337 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2338 metasound_decoder_select="lsp mdct sinewin"
2339 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2340 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2341 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2342 mjpegb_decoder_select="mjpeg_decoder"
2343 mlp_decoder_select="mlp_parser"
2344 motionpixels_decoder_select="bswapdsp"
2345 mp1_decoder_select="mpegaudio"
2346 mp1float_decoder_select="mpegaudio"
2347 mp2_decoder_select="mpegaudio"
2348 mp2float_decoder_select="mpegaudio"
2349 mp3_decoder_select="mpegaudio"
2350 mp3adu_decoder_select="mpegaudio"
2351 mp3adufloat_decoder_select="mpegaudio"
2352 mp3float_decoder_select="mpegaudio"
2353 mp3on4_decoder_select="mpegaudio"
2354 mp3on4float_decoder_select="mpegaudio"
2355 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2356 mpc8_decoder_select="mpegaudiodsp"
2357 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2358 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2359 mpegvideo_decoder_select="mpegvideo"
2360 mpeg1video_decoder_select="mpegvideo"
2361 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2362 mpeg2video_decoder_select="mpegvideo"
2363 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2364 mpeg2_qsv_decoder_deps="libmfx"
2365 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2366 mpeg2_qsv_encoder_deps="libmfx"
2367 mpeg2_qsv_encoder_select="qsvenc"
2368 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2369 mpeg4_encoder_select="h263_encoder"
2370 msa1_decoder_select="mss34dsp"
2371 msmpeg4v1_decoder_select="h263_decoder"
2372 msmpeg4v2_decoder_select="h263_decoder"
2373 msmpeg4v2_encoder_select="h263_encoder"
2374 msmpeg4v3_decoder_select="h263_decoder"
2375 msmpeg4v3_encoder_select="h263_encoder"
2376 mss2_decoder_select="vc1_decoder"
2377 mts2_decoder_select="mss34dsp"
2378 mxpeg_decoder_select="mjpeg_decoder"
2379 nellymoser_decoder_select="mdct sinewin"
2380 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2381 nuv_decoder_select="idctdsp lzo"
2382 on2avc_decoder_select="mdct"
2383 opus_decoder_deps="swresample"
2384 opus_decoder_select="imdct15"
2385 png_decoder_select="zlib"
2386 png_encoder_select="huffyuvencdsp zlib"
2387 prores_decoder_select="blockdsp idctdsp"
2388 prores_encoder_select="fdctdsp"
2389 qcelp_decoder_select="lsp"
2390 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2391 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2392 ra_144_decoder_select="audiodsp"
2393 ralf_decoder_select="golomb"
2394 rawvideo_decoder_select="bswapdsp"
2395 rscc_decoder_select="zlib"
2396 rtjpeg_decoder_select="me_cmp"
2397 rv10_decoder_select="h263_decoder"
2398 rv10_encoder_select="h263_encoder"
2399 rv20_decoder_select="h263_decoder"
2400 rv20_encoder_select="h263_encoder"
2401 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2402 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2403 screenpresso_decoder_select="zlib"
2404 shorten_decoder_select="golomb"
2405 sipr_decoder_select="lsp"
2406 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2407 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2408 sonic_decoder_select="golomb rangecoder"
2409 sonic_encoder_select="golomb rangecoder"
2410 sonic_ls_encoder_select="golomb rangecoder"
2411 sp5x_decoder_select="mjpeg_decoder"
2412 svq1_decoder_select="hpeldsp"
2413 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2414 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2415 svq3_decoder_suggest="zlib"
2416 tak_decoder_select="audiodsp"
2417 tdsc_decoder_select="zlib mjpeg_decoder"
2418 theora_decoder_select="vp3_decoder"
2419 thp_decoder_select="mjpeg_decoder"
2420 tiff_decoder_suggest="zlib lzma"
2421 tiff_encoder_suggest="zlib"
2422 truehd_decoder_select="mlp_parser"
2423 truemotion2_decoder_select="bswapdsp"
2424 truespeech_decoder_select="bswapdsp"
2425 tscc_decoder_select="zlib"
2426 twinvq_decoder_select="mdct lsp sinewin"
2427 txd_decoder_select="texturedsp"
2428 utvideo_decoder_select="bswapdsp"
2429 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2430 vble_decoder_select="huffyuvdsp"
2431 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2432 vc1image_decoder_select="vc1_decoder"
2433 vc1_qsv_decoder_deps="libmfx"
2434 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2435 vorbis_decoder_select="mdct"
2436 vorbis_encoder_select="mdct"
2437 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2438 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2439 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2440 vp6a_decoder_select="vp6_decoder"
2441 vp6f_decoder_select="vp6_decoder"
2442 vp7_decoder_select="h264pred videodsp vp8dsp"
2443 vp8_decoder_select="h264pred videodsp vp8dsp"
2444 vp9_decoder_select="videodsp vp9_parser"
2445 webp_decoder_select="vp8_decoder"
2446 wmalossless_decoder_select="llauddsp"
2447 wmapro_decoder_select="mdct sinewin wma_freqs"
2448 wmav1_decoder_select="mdct sinewin wma_freqs"
2449 wmav1_encoder_select="mdct sinewin wma_freqs"
2450 wmav2_decoder_select="mdct sinewin wma_freqs"
2451 wmav2_encoder_select="mdct sinewin wma_freqs"
2452 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2453 wmv1_decoder_select="h263_decoder"
2454 wmv1_encoder_select="h263_encoder"
2455 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2456 wmv2_encoder_select="h263_encoder wmv2dsp"
2457 wmv3_decoder_select="vc1_decoder"
2458 wmv3image_decoder_select="wmv3_decoder"
2459 zerocodec_decoder_select="zlib"
2460 zlib_decoder_select="zlib"
2461 zlib_encoder_select="zlib"
2462 zmbv_decoder_select="zlib"
2463 zmbv_encoder_select="zlib"
2464
2465 # hardware accelerators
2466 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2467 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2468 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2469 vaapi_deps="va_va_h"
2470 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2471 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2472 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2473 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2474 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2475 xvmc_deps="X11_extensions_XvMClib_h"
2476
2477 h263_vaapi_hwaccel_deps="vaapi"
2478 h263_vaapi_hwaccel_select="h263_decoder"
2479 h263_videotoolbox_hwaccel_deps="videotoolbox"
2480 h263_videotoolbox_hwaccel_select="h263_decoder"
2481 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2482 h264_d3d11va_hwaccel_deps="d3d11va"
2483 h264_d3d11va_hwaccel_select="h264_decoder"
2484 h264_dxva2_hwaccel_deps="dxva2"
2485 h264_dxva2_hwaccel_select="h264_decoder"
2486 h264_mmal_decoder_deps="mmal"
2487 h264_mmal_hwaccel_deps="mmal"
2488 h264_mmal_decoder_select="h264_decoder"
2489 h264_mmal_encoder_deps="mmal"
2490 h264_qsv_hwaccel_deps="libmfx"
2491 h264_vaapi_hwaccel_deps="vaapi"
2492 h264_vaapi_hwaccel_select="h264_decoder"
2493 h264_vda_decoder_deps="vda"
2494 h264_vda_decoder_select="h264_decoder"
2495 h264_vda_hwaccel_deps="vda"
2496 h264_vda_hwaccel_select="h264_decoder"
2497 h264_vda_old_hwaccel_deps="vda"
2498 h264_vda_old_hwaccel_select="h264_decoder"
2499 h264_vdpau_decoder_deps="vdpau"
2500 h264_vdpau_decoder_select="h264_decoder"
2501 h264_vdpau_hwaccel_deps="vdpau"
2502 h264_vdpau_hwaccel_select="h264_decoder"
2503 h264_videotoolbox_hwaccel_deps="videotoolbox"
2504 h264_videotoolbox_hwaccel_select="h264_decoder"
2505 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2506 hevc_d3d11va_hwaccel_select="hevc_decoder"
2507 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2508 hevc_dxva2_hwaccel_select="hevc_decoder"
2509 hevc_qsv_hwaccel_deps="libmfx"
2510 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2511 hevc_vaapi_hwaccel_select="hevc_decoder"
2512 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2513 hevc_vdpau_hwaccel_select="hevc_decoder"
2514 mpeg_vdpau_decoder_deps="vdpau"
2515 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2516 mpeg_xvmc_hwaccel_deps="xvmc"
2517 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2518 mpeg1_vdpau_decoder_deps="vdpau"
2519 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2520 mpeg1_vdpau_hwaccel_deps="vdpau"
2521 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2522 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2523 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2524 mpeg1_xvmc_hwaccel_deps="xvmc"
2525 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2526 mpeg2_crystalhd_decoder_select="crystalhd"
2527 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2528 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2529 mpeg2_dxva2_hwaccel_deps="dxva2"
2530 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2531 mpeg2_mmal_decoder_deps="mmal"
2532 mpeg2_mmal_hwaccel_deps="mmal"
2533 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2534 mpeg2_qsv_hwaccel_deps="libmfx"
2535 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2536 mpeg2_vaapi_hwaccel_deps="vaapi"
2537 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2538 mpeg2_vdpau_hwaccel_deps="vdpau"
2539 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2540 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2541 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2542 mpeg2_xvmc_hwaccel_deps="xvmc"
2543 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2544 mpeg4_crystalhd_decoder_select="crystalhd"
2545 mpeg4_vaapi_hwaccel_deps="vaapi"
2546 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2547 mpeg4_vdpau_decoder_deps="vdpau"
2548 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2549 mpeg4_vdpau_hwaccel_deps="vdpau"
2550 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2551 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2552 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2553 msmpeg4_crystalhd_decoder_select="crystalhd"
2554 vc1_crystalhd_decoder_select="crystalhd"
2555 vc1_d3d11va_hwaccel_deps="d3d11va"
2556 vc1_d3d11va_hwaccel_select="vc1_decoder"
2557 vc1_dxva2_hwaccel_deps="dxva2"
2558 vc1_dxva2_hwaccel_select="vc1_decoder"
2559 vc1_vaapi_hwaccel_deps="vaapi"
2560 vc1_vaapi_hwaccel_select="vc1_decoder"
2561 vc1_vdpau_decoder_deps="vdpau"
2562 vc1_vdpau_decoder_select="vc1_decoder"
2563 vc1_vdpau_hwaccel_deps="vdpau"
2564 vc1_vdpau_hwaccel_select="vc1_decoder"
2565 vc1_mmal_decoder_deps="mmal"
2566 vc1_mmal_hwaccel_deps="mmal"
2567 vc1_mmal_decoder_select="vc1_decoder"
2568 vc1_qsv_hwaccel_deps="libmfx"
2569 vc1_qsv_hwaccel_select="qsvdec_vc1"
2570 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2571 vp9_d3d11va_hwaccel_select="vp9_decoder"
2572 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2573 vp9_dxva2_hwaccel_select="vp9_decoder"
2574 wmv3_crystalhd_decoder_select="crystalhd"
2575 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2576 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2577 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2578 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2579 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2580
2581 # parsers
2582 h264_parser_select="h264_decoder"
2583 hevc_parser_select="golomb"
2584 mpegvideo_parser_select="mpegvideo"
2585 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2586 vc1_parser_select="mpegvideo startcode vc1_decoder"
2587
2588 # bitstream_filters
2589 mjpeg2jpeg_bsf_select="jpegtables"
2590
2591 # external libraries
2592 chromaprint_muxer_deps="chromaprint"
2593 libaacplus_encoder_deps="libaacplus"
2594 libcelt_decoder_deps="libcelt"
2595 libdcadec_decoder_deps="libdcadec"
2596 libfaac_encoder_deps="libfaac"
2597 libfaac_encoder_select="audio_frame_queue"
2598 libfdk_aac_decoder_deps="libfdk_aac"
2599 libfdk_aac_encoder_deps="libfdk_aac"
2600 libfdk_aac_encoder_select="audio_frame_queue"
2601 libgme_demuxer_deps="libgme"
2602 libgsm_decoder_deps="libgsm"
2603 libgsm_encoder_deps="libgsm"
2604 libgsm_ms_decoder_deps="libgsm"
2605 libgsm_ms_encoder_deps="libgsm"
2606 libilbc_decoder_deps="libilbc"
2607 libilbc_encoder_deps="libilbc"
2608 libkvazaar_encoder_deps="libkvazaar"
2609 libmodplug_demuxer_deps="libmodplug"
2610 libmp3lame_encoder_deps="libmp3lame"
2611 libmp3lame_encoder_select="audio_frame_queue"
2612 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2613 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2614 libopencore_amrnb_encoder_select="audio_frame_queue"
2615 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2616 libopenh264_encoder_deps="libopenh264"
2617 libopenjpeg_decoder_deps="libopenjpeg"
2618 libopenjpeg_encoder_deps="libopenjpeg"
2619 libopus_decoder_deps="libopus"
2620 libopus_encoder_deps="libopus"
2621 libopus_encoder_select="audio_frame_queue"
2622 libquvi_demuxer_deps="libquvi"
2623 libschroedinger_decoder_deps="libschroedinger"
2624 libschroedinger_encoder_deps="libschroedinger"
2625 libshine_encoder_deps="libshine"
2626 libshine_encoder_select="audio_frame_queue"
2627 libspeex_decoder_deps="libspeex"
2628 libspeex_encoder_deps="libspeex"
2629 libspeex_encoder_select="audio_frame_queue"
2630 libstagefright_h264_decoder_deps="libstagefright_h264"
2631 libtheora_encoder_deps="libtheora"
2632 libtwolame_encoder_deps="libtwolame"
2633 libvo_aacenc_encoder_deps="libvo_aacenc"
2634 libvo_aacenc_encoder_select="audio_frame_queue"
2635 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2636 libvorbis_decoder_deps="libvorbis"
2637 libvorbis_encoder_deps="libvorbis"
2638 libvorbis_encoder_select="audio_frame_queue"
2639 libvpx_vp8_decoder_deps="libvpx"
2640 libvpx_vp8_encoder_deps="libvpx"
2641 libvpx_vp9_decoder_deps="libvpx"
2642 libvpx_vp9_encoder_deps="libvpx"
2643 libwavpack_encoder_deps="libwavpack"
2644 libwebp_encoder_deps="libwebp"
2645 libwebp_anim_encoder_deps="libwebp"
2646 libx262_encoder_deps="libx262"
2647 libx264_encoder_deps="libx264"
2648 libx264rgb_encoder_deps="libx264"
2649 libx264rgb_encoder_select="libx264_encoder"
2650 libx265_encoder_deps="libx265"
2651 libxavs_encoder_deps="libxavs"
2652 libxvid_encoder_deps="libxvid"
2653 libutvideo_decoder_deps="libutvideo"
2654 libutvideo_encoder_deps="libutvideo"
2655 libzvbi_teletext_decoder_deps="libzvbi"
2656 nvenc_encoder_deps="nvenc"
2657 nvenc_h264_encoder_deps="nvenc"
2658 nvenc_hevc_encoder_deps="nvenc"
2659
2660 # demuxers / muxers
2661 ac3_demuxer_select="ac3_parser"
2662 asf_demuxer_select="riffdec"
2663 asf_o_demuxer_select="riffdec"
2664 asf_muxer_select="riffenc"
2665 asf_stream_muxer_select="asf_muxer"
2666 avi_demuxer_select="riffdec exif"
2667 avi_muxer_select="riffenc"
2668 avisynth_demuxer_deps="avisynth"
2669 avisynth_demuxer_select="riffdec"
2670 caf_demuxer_select="riffdec"
2671 dash_muxer_select="mp4_muxer"
2672 dirac_demuxer_select="dirac_parser"
2673 dts_demuxer_select="dca_parser"
2674 dtshd_demuxer_select="dca_parser"
2675 dv_demuxer_select="dvprofile"
2676 dv_muxer_select="dvprofile"
2677 dxa_demuxer_select="riffdec"
2678 eac3_demuxer_select="ac3_parser"
2679 f4v_muxer_select="mov_muxer"
2680 flac_demuxer_select="flac_parser"
2681 hds_muxer_select="flv_muxer"
2682 hls_muxer_select="mpegts_muxer"
2683 image2_alias_pix_demuxer_select="image2_demuxer"
2684 image2_brender_pix_demuxer_select="image2_demuxer"
2685 ipod_muxer_select="mov_muxer"
2686 ismv_muxer_select="mov_muxer"
2687 libnut_demuxer_deps="libnut"
2688 libnut_muxer_deps="libnut"
2689 matroska_audio_muxer_select="matroska_muxer"
2690 matroska_demuxer_select="riffdec"
2691 matroska_demuxer_suggest="bzlib lzo zlib"
2692 matroska_muxer_select="riffenc"
2693 mmf_muxer_select="riffenc"
2694 mov_demuxer_select="riffdec"
2695 mov_demuxer_suggest="zlib"
2696 mov_muxer_select="riffenc rtpenc_chain"
2697 mp3_demuxer_select="mpegaudio_parser"
2698 mp4_muxer_select="mov_muxer"
2699 mpegts_muxer_select="adts_muxer latm_muxer"
2700 mpegtsraw_demuxer_select="mpegts_demuxer"
2701 mxf_d10_muxer_select="mxf_muxer"
2702 mxf_opatom_muxer_select="mxf_muxer"
2703 nut_muxer_select="riffenc"
2704 nuv_demuxer_select="riffdec"
2705 oga_muxer_select="ogg_muxer"
2706 ogg_demuxer_select="golomb"
2707 opus_muxer_select="ogg_muxer"
2708 psp_muxer_select="mov_muxer"
2709 rtp_demuxer_select="sdp_demuxer"
2710 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2711 rtsp_demuxer_select="http_protocol rtpdec"
2712 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2713 sap_demuxer_select="sdp_demuxer"
2714 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2715 sdp_demuxer_select="rtpdec"
2716 smoothstreaming_muxer_select="ismv_muxer"
2717 spdif_muxer_select="aac_parser"
2718 spx_muxer_select="ogg_muxer"
2719 tak_demuxer_select="tak_parser"
2720 tg2_muxer_select="mov_muxer"
2721 tgp_muxer_select="mov_muxer"
2722 vobsub_demuxer_select="mpegps_demuxer"
2723 w64_demuxer_select="wav_demuxer"
2724 w64_muxer_select="wav_muxer"
2725 wav_demuxer_select="riffdec"
2726 wav_muxer_select="riffenc"
2727 webm_muxer_select="riffenc"
2728 wtv_demuxer_select="riffdec"
2729 wtv_muxer_select="riffenc"
2730 xmv_demuxer_select="riffdec"
2731 xwma_demuxer_select="riffdec"
2732
2733 # indevs / outdevs
2734 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2735 alsa_outdev_deps="alsa_asoundlib_h"
2736 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2737 avfoundation_indev_select="avfoundation"
2738 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2739 caca_outdev_deps="libcaca"
2740 decklink_outdev_deps="decklink pthreads"
2741 decklink_outdev_extralibs="-lstdc++"
2742 decklink_indev_deps="decklink pthreads"
2743 decklink_indev_extralibs="-lstdc++"
2744 dshow_indev_deps="IBaseFilter"
2745 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2746 dv1394_indev_deps="dv1394"
2747 dv1394_indev_select="dv_demuxer"
2748 fbdev_indev_deps="linux_fb_h"
2749 fbdev_outdev_deps="linux_fb_h"
2750 gdigrab_indev_deps="CreateDIBSection"
2751 gdigrab_indev_extralibs="-lgdi32"
2752 gdigrab_indev_select="bmp_decoder"
2753 iec61883_indev_deps="libiec61883"
2754 jack_indev_deps="jack_jack_h sem_timedwait"
2755 lavfi_indev_deps="avfilter"
2756 libcdio_indev_deps="libcdio"
2757 libdc1394_indev_deps="libdc1394"
2758 libv4l2_indev_deps="libv4l2"
2759 openal_indev_deps="openal"
2760 opengl_outdev_deps="opengl"
2761 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2762 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2763 pulse_indev_deps="libpulse"
2764 pulse_outdev_deps="libpulse"
2765 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2766 qtkit_indev_select="qtkit"
2767 sdl_outdev_deps="sdl"
2768 sndio_indev_deps="sndio_h"
2769 sndio_outdev_deps="sndio_h"
2770 v4l_indev_deps="linux_videodev_h"
2771 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2772 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2773 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2774 vfwcap_indev_extralibs="-lavicap32"
2775 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2776 xv_outdev_extralibs="-lXv -lX11 -lXext"
2777 x11grab_indev_deps="x11grab"
2778 x11grab_xcb_indev_deps="libxcb"
2779
2780 # protocols
2781 async_protocol_deps="threads"
2782 bluray_protocol_deps="libbluray"
2783 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2784 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2785 ffrtmpcrypt_protocol_select="tcp_protocol"
2786 ffrtmphttp_protocol_deps="!librtmp_protocol"
2787 ffrtmphttp_protocol_select="http_protocol"
2788 ftp_protocol_select="tcp_protocol"
2789 gopher_protocol_select="network"
2790 http_protocol_select="tcp_protocol"
2791 httpproxy_protocol_select="tcp_protocol"
2792 https_protocol_select="tls_protocol"
2793 icecast_protocol_select="http_protocol"
2794 librtmp_protocol_deps="librtmp"
2795 librtmpe_protocol_deps="librtmp"
2796 librtmps_protocol_deps="librtmp"
2797 librtmpt_protocol_deps="librtmp"
2798 librtmpte_protocol_deps="librtmp"
2799 libsmbclient_protocol_deps="libsmbclient gplv3"
2800 libssh_protocol_deps="libssh"
2801 mmsh_protocol_select="http_protocol"
2802 mmst_protocol_select="network"
2803 rtmp_protocol_deps="!librtmp_protocol"
2804 rtmp_protocol_select="tcp_protocol"
2805 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2806 rtmps_protocol_deps="!librtmp_protocol"
2807 rtmps_protocol_select="tls_protocol"
2808 rtmpt_protocol_select="ffrtmphttp_protocol"
2809 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2810 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2811 rtp_protocol_select="udp_protocol"
2812 sctp_protocol_deps="struct_sctp_event_subscribe"
2813 sctp_protocol_select="network"
2814 srtp_protocol_select="rtp_protocol"
2815 tcp_protocol_select="network"
2816 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2817 tls_gnutls_protocol_select="tcp_protocol"
2818 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2819 tls_openssl_protocol_select="tcp_protocol"
2820 tls_schannel_protocol_deps="schannel"
2821 tls_schannel_protocol_select="tcp_protocol"
2822 tls_securetransport_protocol_deps="securetransport"
2823 tls_securetransport_protocol_select="tcp_protocol"
2824 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2825 udp_protocol_select="network"
2826 udplite_protocol_select="network"
2827 unix_protocol_deps="sys_un_h"
2828 unix_protocol_select="network"
2829
2830 # filters
2831 aemphasis_filter_deps="cabs cexp"
2832 amovie_filter_deps="avcodec avformat"
2833 aresample_filter_deps="swresample"
2834 ass_filter_deps="libass"
2835 asyncts_filter_deps="avresample"
2836 atempo_filter_deps="avcodec"
2837 atempo_filter_select="rdft"
2838 azmq_filter_deps="libzmq"
2839 blackframe_filter_deps="gpl"
2840 boxblur_filter_deps="gpl"
2841 bs2b_filter_deps="libbs2b"
2842 colormatrix_filter_deps="gpl"
2843 cover_rect_filter_deps="avcodec avformat gpl"
2844 cropdetect_filter_deps="gpl"
2845 delogo_filter_deps="gpl"
2846 deshake_filter_select="pixelutils"
2847 drawtext_filter_deps="libfreetype"
2848 dynaudnorm_filter_deps="copysign erf"
2849 ebur128_filter_deps="gpl"
2850 eq_filter_deps="gpl"
2851 fftfilt_filter_deps="avcodec"
2852 fftfilt_filter_select="rdft"
2853 flite_filter_deps="libflite"
2854 find_rect_filter_deps="avcodec avformat gpl"
2855 frei0r_filter_deps="frei0r dlopen"
2856 frei0r_src_filter_deps="frei0r dlopen"
2857 fspp_filter_deps="gpl"
2858 geq_filter_deps="gpl"
2859 histeq_filter_deps="gpl"
2860 hqdn3d_filter_deps="gpl"
2861 interlace_filter_deps="gpl"
2862 kerndeint_filter_deps="gpl"
2863 ladspa_filter_deps="ladspa dlopen"
2864 mcdeint_filter_deps="avcodec gpl"
2865 movie_filter_deps="avcodec avformat"
2866 mpdecimate_filter_deps="gpl"
2867 mpdecimate_filter_select="pixelutils"
2868 mptestsrc_filter_deps="gpl"
2869 negate_filter_deps="lut_filter"
2870 perspective_filter_deps="gpl"
2871 pp7_filter_deps="gpl"
2872 ocr_filter_deps="libtesseract"
2873 ocv_filter_deps="libopencv"
2874 owdenoise_filter_deps="gpl"
2875 pan_filter_deps="swresample"
2876 phase_filter_deps="gpl"
2877 pp_filter_deps="gpl postproc"
2878 pullup_filter_deps="gpl"
2879 removelogo_filter_deps="avcodec avformat swscale"
2880 repeatfields_filter_deps="gpl"
2881 resample_filter_deps="avresample"
2882 rubberband_filter_deps="librubberband"
2883 sab_filter_deps="gpl swscale"
2884 scale_filter_deps="swscale"
2885 scale2ref_filter_deps="swscale"
2886 select_filter_select="pixelutils"
2887 smartblur_filter_deps="gpl swscale"
2888 showcqt_filter_deps="avcodec avformat swscale"
2889 showcqt_filter_select="fft"
2890 showfreqs_filter_deps="avcodec"
2891 showfreqs_filter_select="fft"
2892 showspectrum_filter_deps="avcodec"
2893 showspectrum_filter_select="rdft"
2894 spp_filter_deps="gpl avcodec"
2895 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2896 stereo3d_filter_deps="gpl"
2897 subtitles_filter_deps="avformat avcodec libass"
2898 super2xsai_filter_deps="gpl"
2899 tinterlace_filter_deps="gpl"
2900 vidstabdetect_filter_deps="libvidstab"
2901 vidstabtransform_filter_deps="libvidstab"
2902 pixfmts_super2xsai_test_deps="super2xsai_filter"
2903 tinterlace_merge_test_deps="tinterlace_filter"
2904 tinterlace_pad_test_deps="tinterlace_filter"
2905 uspp_filter_deps="gpl avcodec"
2906 zmq_filter_deps="libzmq"
2907 zoompan_filter_deps="swscale"
2908 zscale_filter_deps="libzimg"
2909
2910 # examples
2911 avio_reading="avformat avcodec avutil"
2912 avio_dir_cmd="avformat avutil"
2913 avcodec_example_deps="avcodec avutil"
2914 decoding_encoding_example_deps="avcodec avformat avutil"
2915 demuxing_decoding_example_deps="avcodec avformat avutil"
2916 extract_mvs_example_deps="avcodec avformat avutil"
2917 filter_audio_example_deps="avfilter avutil"
2918 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2919 filtering_video_example_deps="avfilter avcodec avformat avutil"
2920 metadata_example_deps="avformat avutil"
2921 muxing_example_deps="avcodec avformat avutil swscale"
2922 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2923 remuxing_example_deps="avcodec avformat avutil"
2924 resampling_audio_example_deps="avutil swresample"
2925 scaling_video_example_deps="avutil swscale"
2926 transcode_aac_example_deps="avcodec avformat swresample"
2927 transcoding_example_deps="avfilter avcodec avformat avutil"
2928
2929 # libraries, in linking order
2930 avcodec_deps="avutil"
2931 avdevice_deps="avformat avcodec avutil"
2932 avfilter_deps="avutil"
2933 avformat_deps="avcodec avutil"
2934 avresample_deps="avutil"
2935 postproc_deps="avutil gpl"
2936 swresample_deps="avutil"
2937 swscale_deps="avutil"
2938
2939 # programs
2940 ffmpeg_deps="avcodec avfilter avformat swresample"
2941 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2942                null_filter
2943                setpts_filter trim_filter"
2944 ffplay_deps="avcodec avformat swscale swresample sdl"
2945 ffplay_libs='$sdl_libs'
2946 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2947 ffprobe_deps="avcodec avformat"
2948 ffserver_deps="avformat fork sarestart"
2949 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2950
2951 # documentation
2952 podpages_deps="perl"
2953 manpages_deps="perl pod2man"
2954 htmlpages_deps="perl"
2955 htmlpages_deps_any="makeinfo_html texi2html"
2956 txtpages_deps="perl makeinfo"
2957 doc_deps_any="manpages htmlpages podpages txtpages"
2958
2959 # default parameters
2960
2961 logfile="config.log"
2962
2963 # installation paths
2964 prefix_default="/usr/local"
2965 bindir_default='${prefix}/bin'
2966 datadir_default='${prefix}/share/ffmpeg'
2967 docdir_default='${prefix}/share/doc/ffmpeg'
2968 incdir_default='${prefix}/include'
2969 libdir_default='${prefix}/lib'
2970 mandir_default='${prefix}/share/man'
2971
2972 # toolchain
2973 ar_default="ar"
2974 cc_default="gcc"
2975 cxx_default="g++"
2976 host_cc_default="gcc"
2977 cp_f="cp -f"
2978 doxygen_default="doxygen"
2979 install="install"
2980 ln_s="ln -s -f"
2981 nm_default="nm -g"
2982 objformat="elf"
2983 pkg_config_default=pkg-config
2984 ranlib_default="ranlib"
2985 strip_default="strip"
2986 yasmexe_default="yasm"
2987 windres_default="windres"
2988
2989 # OS
2990 target_os_default=$(tolower $(uname -s))
2991 host_os=$target_os_default
2992
2993 # machine
2994 if test "$target_os_default" = aix; then
2995     arch_default=$(uname -p)
2996     strip_default="strip -X32_64"
2997 else
2998     arch_default=$(uname -m)
2999 fi
3000 cpu="generic"
3001 intrinsics="none"
3002
3003 # configurable options
3004 enable $PROGRAM_LIST
3005 enable $DOCUMENT_LIST
3006 enable $EXAMPLE_LIST
3007 enable $(filter_out avresample $LIBRARY_LIST)
3008 enable stripping
3009
3010 enable asm
3011 enable debug
3012 enable doc
3013 enable faan faandct faanidct
3014 enable optimizations
3015 enable runtime_cpudetect
3016 enable safe_bitstream_reader
3017 enable static
3018 enable swscale_alpha
3019 enable valgrind_backtrace
3020
3021 sws_max_filter_size_default=256
3022 set_default sws_max_filter_size
3023
3024 # Enable hwaccels by default.
3025 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3026 enable xlib
3027
3028 # build settings
3029 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3030 LIBPREF="lib"
3031 LIBSUF=".a"
3032 FULLNAME='$(NAME)$(BUILDSUF)'
3033 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3034 SLIBPREF="lib"
3035 SLIBSUF=".so"
3036 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3037 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3038 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3039 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3040 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3041 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3042
3043 asflags_filter=echo
3044 cflags_filter=echo
3045 ldflags_filter=echo
3046
3047 AS_C='-c'
3048 AS_O='-o $@'
3049 CC_C='-c'
3050 CC_E='-E -o $@'
3051 CC_O='-o $@'
3052 CXX_C='-c'
3053 CXX_O='-o $@'
3054 OBJCC_C='-c'
3055 OBJCC_E='-E -o $@'
3056 OBJCC_O='-o $@'
3057 LD_O='-o $@'
3058 LD_LIB='-l%'
3059 LD_PATH='-L'
3060 HOSTCC_C='-c'
3061 HOSTCC_E='-E -o $@'
3062 HOSTCC_O='-o $@'
3063 HOSTLD_O='-o $@'
3064
3065 host_libs='-lm'
3066 host_cflags_filter=echo
3067 host_ldflags_filter=echo
3068
3069 target_path='$(CURDIR)'
3070
3071 # since the object filename is not given with the -MM flag, the compiler
3072 # is only able to print the basename, and we must add the path ourselves
3073 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3074 DEPFLAGS='-MM'
3075
3076 # find source path
3077 if test -f configure; then
3078     source_path=.
3079 else
3080     source_path=$(cd $(dirname "$0"); pwd)
3081     case "$source_path" in
3082         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3083     esac
3084     test -e "$source_path/config.h" &&
3085         die "Out of tree builds are impossible with config.h in source dir."
3086 fi
3087
3088 for v in "$@"; do
3089     r=${v#*=}
3090     l=${v%"$r"}
3091     r=$(sh_quote "$r")
3092     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3093 done
3094
3095 find_things(){
3096     thing=$1
3097     pattern=$2
3098     file=$source_path/$3
3099     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3100 }
3101
3102 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3103 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3104 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3105 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3106 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3107 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3108 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3109 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3110 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3111 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3112 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3113
3114 ALL_COMPONENTS="
3115     $BSF_LIST
3116     $DECODER_LIST
3117     $DEMUXER_LIST
3118     $ENCODER_LIST
3119     $FILTER_LIST
3120     $HWACCEL_LIST
3121     $INDEV_LIST
3122     $MUXER_LIST
3123     $OUTDEV_LIST
3124     $PARSER_LIST
3125     $PROTOCOL_LIST
3126 "
3127
3128 for n in $COMPONENT_LIST; do
3129     v=$(toupper ${n%s})_LIST
3130     eval enable \$$v
3131     eval ${n}_if_any="\$$v"
3132 done
3133
3134 enable $ARCH_EXT_LIST
3135
3136 die_unknown(){
3137     echo "Unknown option \"$1\"."
3138     echo "See $0 --help for available options."
3139     exit 1
3140 }
3141
3142 print_in_columns() {
3143     cols=$(expr $ncols / 24)
3144     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3145 }
3146
3147 show_list() {
3148     suffix=_$1
3149     shift
3150     echo $* | sed s/$suffix//g | print_in_columns
3151     exit 0
3152 }
3153
3154 rand_list(){
3155     IFS=', '
3156     set -- $*
3157     unset IFS
3158     for thing; do
3159         comp=${thing%:*}
3160         prob=${thing#$comp}
3161         prob=${prob#:}
3162         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3163         echo "prob ${prob:-0.5}"
3164         printf '%s\n' $comp
3165     done
3166 }
3167
3168 do_random(){
3169     action=$1
3170     shift
3171     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3172     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3173 }
3174
3175 for opt do
3176     optval="${opt#*=}"
3177     case "$opt" in
3178         --extra-ldflags=*)
3179             add_ldflags $optval
3180         ;;
3181         --extra-ldexeflags=*)
3182             add_ldexeflags $optval
3183         ;;
3184         --extra-ldlibflags=*)
3185             add_ldlibflags $optval
3186         ;;
3187         --extra-libs=*)
3188             add_extralibs $optval
3189         ;;
3190         --disable-devices)
3191             disable $INDEV_LIST $OUTDEV_LIST
3192         ;;
3193         --enable-debug=*)
3194             debuglevel="$optval"
3195         ;;
3196         --disable-programs)
3197             disable $PROGRAM_LIST
3198         ;;
3199         --disable-everything)
3200             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3201         ;;
3202         --disable-all)
3203             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3204             disable $LIBRARY_LIST $PROGRAM_LIST doc
3205             enable avutil
3206         ;;
3207         --enable-random|--disable-random)
3208             action=${opt%%-random}
3209             do_random ${action#--} $COMPONENT_LIST
3210         ;;
3211         --enable-random=*|--disable-random=*)
3212             action=${opt%%-random=*}
3213             do_random ${action#--} $optval
3214         ;;
3215         --enable-*=*|--disable-*=*)
3216             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3217             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3218             eval list=\$$(toupper $thing)_LIST
3219             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3220             list=$(filter "$name" $list)
3221             [ "$list" = "" ] && warn "Option $opt did not match anything"
3222             $action $list
3223         ;;
3224         --enable-?*|--disable-?*)
3225             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3226             if is_in $option $COMPONENT_LIST; then
3227                 test $action = disable && action=unset
3228                 eval $action \$$(toupper ${option%s})_LIST
3229             elif is_in $option $CMDLINE_SELECT; then
3230                 $action $option
3231             else
3232                 die_unknown $opt
3233             fi
3234         ;;
3235         --list-*)
3236             NAME="${opt#--list-}"
3237             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3238             NAME=${NAME%s}
3239             eval show_list $NAME \$$(toupper $NAME)_LIST
3240         ;;
3241         --help|-h) show_help
3242         ;;
3243         --fatal-warnings) enable fatal_warnings
3244         ;;
3245         *)
3246             optname="${opt%%=*}"
3247             optname="${optname#--}"
3248             optname=$(echo "$optname" | sed 's/-/_/g')
3249             if is_in $optname $CMDLINE_SET; then
3250                 eval $optname='$optval'
3251             elif is_in $optname $CMDLINE_APPEND; then
3252                 append $optname "$optval"
3253             else
3254                 die_unknown $opt
3255             fi
3256         ;;
3257     esac
3258 done
3259
3260 for e in $env; do
3261     eval "export $e"
3262 done
3263
3264 disabled logging && logfile=/dev/null
3265
3266 # Disable all the library-specific components if the library itself
3267 # is disabled, see AVCODEC_LIST and following _LIST variables.
3268
3269 disable_components(){
3270     disabled ${1} && disable $(
3271         eval components="\$$(toupper ${1})_COMPONENTS"
3272         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3273     )
3274 }
3275
3276 map 'disable_components $v' $LIBRARY_LIST
3277
3278 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3279 set >> $logfile
3280
3281 test -n "$valgrind" && toolchain="valgrind-memcheck"
3282
3283 case "$toolchain" in
3284     clang-asan)
3285         cc_default="clang"
3286         add_cflags  -fsanitize=address
3287         add_ldflags -fsanitize=address
3288     ;;
3289     clang-tsan)
3290         cc_default="clang"
3291         add_cflags  -fsanitize=thread -pie
3292         add_ldflags -fsanitize=thread -pie
3293     ;;
3294     clang-usan)
3295         cc_default="clang"
3296         add_cflags  -fsanitize=undefined
3297         add_ldflags -fsanitize=undefined
3298     ;;
3299     gcc-asan)
3300         cc_default="gcc"
3301         add_cflags  -fsanitize=address
3302         add_ldflags -fsanitize=address
3303     ;;
3304     gcc-tsan)
3305         cc_default="gcc"
3306         add_cflags  -fsanitize=thread -pie -fPIC
3307         add_ldflags -fsanitize=thread -pie -fPIC
3308     ;;
3309     gcc-usan)
3310         cc_default="gcc"
3311         add_cflags  -fsanitize=undefined
3312         add_ldflags -fsanitize=undefined
3313     ;;
3314     valgrind-massif)
3315         target_exec_default=${valgrind:-"valgrind"}
3316         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"
3317     ;;
3318     valgrind-memcheck)
3319         target_exec_default=${valgrind:-"valgrind"}
3320         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3321     ;;
3322     msvc)
3323         # Check whether the current MSVC version needs the C99 converter.
3324         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3325         # support enough of C99 to build ffmpeg. Default to the new
3326         # behaviour if the regexp was unable to match anything, since this
3327         # successfully parses the version number of existing supported
3328         # versions that require the converter (MSVC 2010 and 2012).
3329         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3330         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3331             cc_default="cl"
3332         else
3333             cc_default="c99wrap cl"
3334         fi
3335         ld_default="$source_path/compat/windows/mslink"
3336         nm_default="dumpbin -symbols"
3337         ar_default="lib"
3338         case "$arch" in
3339         arm*)
3340             as_default="armasm"
3341             ;;
3342         esac
3343         target_os_default="win32"
3344         # Use a relative path for TMPDIR. This makes sure all the
3345         # ffconf temp files are written with a relative path, avoiding
3346         # issues with msys/win32 path conversion for MSVC parameters
3347         # such as -Fo<file> or -out:<file>.
3348         TMPDIR=.
3349     ;;
3350     icl)
3351         cc_default="icl"
3352         ld_default="xilink"
3353         nm_default="dumpbin -symbols"
3354         ar_default="xilib"
3355         target_os_default="win32"
3356         TMPDIR=.
3357     ;;
3358     gcov)
3359         add_cflags  -fprofile-arcs -ftest-coverage
3360         add_ldflags -fprofile-arcs -ftest-coverage
3361     ;;
3362     hardened)
3363         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3364         add_cflags   -fno-strict-overflow -fstack-protector-all
3365         add_ldflags  -Wl,-z,relro -Wl,-z,now
3366     ;;
3367     ?*)
3368         die "Unknown toolchain $toolchain"
3369     ;;
3370 esac
3371
3372 test -n "$cross_prefix" && enable cross_compile
3373
3374 if enabled cross_compile; then
3375     test -n "$arch" && test -n "$target_os" ||
3376         die "Must specify target arch and OS when cross-compiling"
3377 fi
3378
3379 ar_default="${cross_prefix}${ar_default}"
3380 cc_default="${cross_prefix}${cc_default}"
3381 cxx_default="${cross_prefix}${cxx_default}"
3382 nm_default="${cross_prefix}${nm_default}"
3383 pkg_config_default="${cross_prefix}${pkg_config_default}"
3384 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3385     ranlib_default="${cross_prefix}${ranlib_default} -D"
3386 else
3387     ranlib_default="${cross_prefix}${ranlib_default}"
3388 fi
3389 strip_default="${cross_prefix}${strip_default}"
3390 windres_default="${cross_prefix}${windres_default}"
3391
3392 sysinclude_default="${sysroot}/usr/include"
3393
3394 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3395     target_exec target_os yasmexe
3396 enabled cross_compile || host_cc_default=$cc
3397 set_default host_cc
3398
3399 pkg_config_fail_message=""
3400 if ! $pkg_config --version >/dev/null 2>&1; then
3401     warn "$pkg_config not found, library detection may fail."
3402     pkg_config=false
3403 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3404     pkg_config_fail_message="
3405 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3406 fi
3407
3408 if test $doxygen != $doxygen_default && \
3409   ! $doxygen --version >/dev/null 2>&1; then
3410     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3411 fi
3412
3413 exesuf() {
3414     case $1 in
3415         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3416     esac
3417 }
3418
3419 EXESUF=$(exesuf $target_os)
3420 HOSTEXESUF=$(exesuf $host_os)
3421
3422 # set temporary file name
3423 : ${TMPDIR:=$TEMPDIR}
3424 : ${TMPDIR:=$TMP}
3425 : ${TMPDIR:=/tmp}
3426
3427 if [ -n "$tempprefix" ] ; then
3428     mktemp(){
3429         echo $tempprefix.${HOSTNAME}.${UID}
3430     }
3431 elif ! check_cmd mktemp -u XXXXXX; then
3432     # simple replacement for missing mktemp
3433     # NOT SAFE FOR GENERAL USE
3434     mktemp(){
3435         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3436     }
3437 fi
3438
3439 tmpfile(){
3440     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3441         (set -C; exec > $tmp) 2>/dev/null ||
3442         die "Unable to create temporary file in $TMPDIR."
3443     append TMPFILES $tmp
3444     eval $1=$tmp
3445 }
3446
3447 trap 'rm -f -- $TMPFILES' EXIT
3448
3449 tmpfile TMPASM .asm
3450 tmpfile TMPC   .c
3451 tmpfile TMPCPP .cpp
3452 tmpfile TMPE   $EXESUF
3453 tmpfile TMPH   .h
3454 tmpfile TMPM   .m
3455 tmpfile TMPO   .o
3456 tmpfile TMPS   .S
3457 tmpfile TMPSH  .sh
3458 tmpfile TMPV   .ver
3459
3460 unset -f mktemp
3461
3462 chmod +x $TMPE
3463
3464 # make sure we can execute files in $TMPDIR
3465 cat > $TMPSH 2>> $logfile <<EOF
3466 #! /bin/sh
3467 EOF
3468 chmod +x $TMPSH >> $logfile 2>&1
3469 if ! $TMPSH >> $logfile 2>&1; then
3470     cat <<EOF
3471 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3472 variable to another directory and make sure that it is not mounted noexec.
3473 EOF
3474     die "Sanity test failed."
3475 fi
3476
3477 armasm_flags(){
3478     for flag; do
3479         case $flag in
3480             # Filter out MSVC cl.exe options from cflags that shouldn't
3481             # be passed to gas-preprocessor
3482             -M[TD]*)                                            ;;
3483             *)                  echo $flag                      ;;
3484         esac
3485    done
3486 }
3487
3488 ccc_flags(){
3489     for flag; do
3490         case $flag in
3491             -std=c99)           echo -c99                       ;;
3492             -mcpu=*)            echo -arch ${flag#*=}           ;;
3493             -mieee)             echo -ieee                      ;;
3494             -O*|-fast)          echo $flag                      ;;
3495             -fno-math-errno)    echo -assume nomath_errno       ;;
3496             -g)                 echo -g3                        ;;
3497             -Wall)              echo -msg_enable level2         ;;
3498             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3499             -Wl,*)              echo $flag                      ;;
3500             -f*|-W*)                                            ;;
3501             *)                  echo $flag                      ;;
3502         esac
3503    done
3504 }
3505
3506 cparser_flags(){
3507     for flag; do
3508         case $flag in
3509             -Wno-switch)             echo -Wno-switch-enum ;;
3510             -Wno-format-zero-length) ;;
3511             -Wdisabled-optimization) ;;
3512             -Wno-pointer-sign)       echo -Wno-other ;;
3513             *)                       echo $flag ;;
3514         esac
3515     done
3516 }
3517
3518 msvc_common_flags(){
3519     for flag; do
3520         case $flag in
3521             # In addition to specifying certain flags under the compiler
3522             # specific filters, they must be specified here as well or else the
3523             # generic catch all at the bottom will print the original flag.
3524             -Wall)                ;;
3525             -std=c99)             ;;
3526             # Common flags
3527             -fomit-frame-pointer) ;;
3528             -g)                   echo -Z7 ;;
3529             -fno-math-errno)      ;;
3530             -fno-common)          ;;
3531             -fno-signed-zeros)    ;;
3532             -fPIC)                ;;
3533             -mthumb)              ;;
3534             -march=*)             ;;
3535             -lz)                  echo zlib.lib ;;
3536             -lavifil32)           echo vfw32.lib ;;
3537             -lavicap32)           echo vfw32.lib user32.lib ;;
3538             -l*)                  echo ${flag#-l}.lib ;;
3539             -LARGEADDRESSAWARE)   echo $flag ;;
3540             -L*)                  echo -libpath:${flag#-L} ;;
3541             *)                    echo $flag ;;
3542         esac
3543     done
3544 }
3545
3546 msvc_flags(){
3547     msvc_common_flags "$@"
3548     for flag; do
3549         case $flag in
3550             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3551                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3552                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3553                                        -wd4307 \
3554                                        -wd4273 -wd4554 -wd4701 ;;
3555         esac
3556     done
3557 }
3558
3559 icl_flags(){
3560     msvc_common_flags "$@"
3561     for flag; do
3562         case $flag in
3563             # Despite what Intel's documentation says -Wall, which is supported
3564             # on Windows, does enable remarks so disable them here.
3565             -Wall)                echo $flag -Qdiag-disable:remark ;;
3566             -std=c99)             echo -Qstd=c99 ;;
3567             -flto)                echo -ipo ;;
3568         esac
3569     done
3570 }
3571
3572 icc_flags(){
3573     for flag; do
3574         case $flag in
3575             -flto)                echo -ipo ;;
3576             *)                    echo $flag ;;
3577         esac
3578     done
3579 }
3580
3581 pgi_flags(){
3582     for flag; do
3583         case $flag in
3584             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3585             -fomit-frame-pointer) echo -Mnoframe ;;
3586             -g)                   echo -gopt ;;
3587             *)                    echo $flag ;;
3588         esac
3589     done
3590 }
3591
3592 suncc_flags(){
3593     for flag; do
3594         case $flag in
3595             -march=*|-mcpu=*)
3596                 case "${flag#*=}" in
3597                     native)                   echo -xtarget=native       ;;
3598                     v9|niagara)               echo -xarch=sparc          ;;
3599                     ultrasparc)               echo -xarch=sparcvis       ;;
3600                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3601                     i586|pentium)             echo -xchip=pentium        ;;
3602                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3603                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3604                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3605                     pentium4*)          echo -xtarget=pentium4           ;;
3606                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3607                     *-sse3)             echo -xarch=sse3                 ;;
3608                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3609                     bonnell)                   echo -xarch=ssse3         ;;
3610                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3611                     westmere)                  echo -xtarget=westmere    ;;
3612                     silvermont)                echo -xarch=sse4_2        ;;
3613                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3614                     core-avx*|ivybridge|haswell|broadwell)
3615                                                echo -xarch=avx           ;;
3616                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3617                     btver1)                    echo -xarch=amdsse4a      ;;
3618                     btver2|bdver*)             echo -xarch=avx           ;;
3619                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3620                     k8|opteron|athlon64|athlon-fx)
3621                                                echo -xarch=sse2a         ;;
3622                     athlon*)                   echo -xarch=pentium_proa  ;;
3623                 esac
3624                 ;;
3625             -std=c99)             echo -xc99              ;;
3626             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3627             -fPIC)                echo -KPIC -xcode=pic32 ;;
3628             -W*,*)                echo $flag              ;;
3629             -f*-*|-W*|-mimpure-text)                      ;;
3630             -shared)              echo -G                 ;;
3631             *)                    echo $flag              ;;
3632         esac
3633     done
3634 }
3635
3636 tms470_flags(){
3637     for flag; do
3638         case $flag in
3639             -march=*|-mcpu=*)
3640                 case "${flag#*=}" in
3641                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3642                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3643                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3644                     armv6*|arm11*)          echo -mv=6   ;;
3645                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3646                                             echo -mv=5e  ;;
3647                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3648                 esac
3649                 ;;
3650             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3651             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3652             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3653             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3654             -msoft-float)   echo --float_support=vfplib       ;;
3655             -O[0-3]|-mf=*)  echo $flag                        ;;
3656             -g)             echo -g -mn                       ;;
3657             -pds=*)         echo $flag                        ;;
3658             -D*|-I*)        echo $flag                        ;;
3659             --gcc|--abi=*)  echo $flag                        ;;
3660             -me)            echo $flag                        ;;
3661         esac
3662     done
3663 }
3664
3665 probe_cc(){
3666     pfx=$1
3667     _cc=$2
3668     first=$3
3669
3670     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3671     unset _ld_o _ldflags _ld_lib _ld_path
3672     unset _depflags _DEPCMD _DEPFLAGS
3673     _flags_filter=echo
3674
3675     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3676         true # no-op to avoid reading stdin in following checks
3677     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3678         _type=llvm_gcc
3679         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3680         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3681         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3682         _cflags_speed='-O3'
3683         _cflags_size='-Os'
3684     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3685         _type=gcc
3686         gcc_version=$($_cc --version | head -n1)
3687         gcc_basever=$($_cc -dumpversion)
3688         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3689         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3690         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3691         case $gcc_basever in
3692             2*) ;;
3693             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3694         esac
3695         if [ "$first" = true ]; then
3696             case $gcc_basever in
3697                 4.2*)
3698                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3699             esac
3700         fi
3701         _cflags_speed='-O3'
3702         _cflags_size='-Os'
3703     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3704         _type=icc
3705         _ident=$($_cc --version | head -n1)
3706         _depflags='-MMD'
3707         _cflags_speed='-O3'
3708         _cflags_size='-Os'
3709         _cflags_noopt='-O1'
3710         _flags_filter=icc_flags
3711     elif $_cc -v 2>&1 | grep -q xlc; then
3712         _type=xlc
3713         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3714         _cflags_speed='-O5'
3715         _cflags_size='-O5 -qcompact'
3716     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3717         _type=ccc
3718         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3719         _DEPFLAGS='-M'
3720         _cflags_speed='-fast'
3721         _cflags_size='-O1'
3722         _flags_filter=ccc_flags
3723     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3724         test -d "$sysroot" || die "No valid sysroot specified."
3725         _type=armcc
3726         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3727         armcc_conf="$PWD/armcc.conf"
3728         $_cc --arm_linux_configure                 \
3729              --arm_linux_config_file="$armcc_conf" \
3730              --configure_sysroot="$sysroot"        \
3731              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3732              die "Error creating armcc configuration file."
3733         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3734         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3735         as_default="${cross_prefix}gcc"
3736         _depflags='-MMD'
3737         _cflags_speed='-O3'
3738         _cflags_size='-Os'
3739     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3740         _type=tms470
3741         _ident=$($_cc -version | head -n1 | tr -s ' ')
3742         _flags='--gcc --abi=eabi -me'
3743         _cc_e='-ppl -fe=$@'
3744         _cc_o='-fe=$@'
3745         _depflags='-ppa -ppd=$(@:.o=.d)'
3746         _cflags_speed='-O3 -mf=5'
3747         _cflags_size='-O3 -mf=2'
3748         _flags_filter=tms470_flags
3749     elif $_cc -v 2>&1 | grep -q clang; then
3750         _type=clang
3751         _ident=$($_cc --version 2>/dev/null | head -n1)
3752         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3753         _cflags_speed='-O3'
3754         _cflags_size='-Os'
3755     elif $_cc -V 2>&1 | grep -q Sun; then
3756         _type=suncc
3757         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3758         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3759         _DEPFLAGS='-xM1 -xc99'
3760         _ldflags='-std=c99'
3761         _cflags_speed='-O5'
3762         _cflags_size='-O5 -xspace'
3763         _flags_filter=suncc_flags
3764     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3765         _type=pathscale
3766         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3767         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3768         _cflags_speed='-O2'
3769         _cflags_size='-Os'
3770         _flags_filter='filter_out -Wdisabled-optimization'
3771     elif $_cc -v 2>&1 | grep -q Open64; then
3772         _type=open64
3773         _ident=$($_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|-Wtype-limits|-fno-signed-zeros'
3778     elif $_cc -V 2>&1 | grep -q Portland; then
3779         _type=pgi
3780         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3781         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3782         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3783         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3784         _cflags_noopt="-O"
3785         _flags_filter=pgi_flags
3786     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3787         _type=armasm
3788         _ident=$($_cc | head -n1)
3789         # 4509: "This form of conditional instruction is deprecated"
3790         _flags="-nologo -ignore 4509"
3791         _flags_filter=armasm_flags
3792     elif $_cc 2>&1 | grep -q Intel; then
3793         _type=icl
3794         _ident=$($_cc 2>&1 | head -n1)
3795         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3796         # Not only is O3 broken on 13.x+ but it is slower on all previous
3797         # versions (tested) as well.
3798         _cflags_speed="-O2"
3799         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3800         if $_cc 2>&1 | grep -q Linker; then
3801             _ld_o='-out:$@'
3802         else
3803             _ld_o='-Fe$@'
3804         fi
3805         _cc_o='-Fo$@'
3806         _cc_e='-P'
3807         _flags_filter=icl_flags
3808         _ld_lib='lib%.a'
3809         _ld_path='-libpath:'
3810         # -Qdiag-error to make icl error when seeing certain unknown arguments
3811         _flags='-nologo -Qdiag-error:4044,10157'
3812         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3813         # with MSVC which enables it by default.
3814         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3815         disable stripping
3816     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3817         _type=msvc
3818         _ident=$($_cc 2>&1 | head -n1)
3819         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3820         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3821         _cflags_speed="-O2"
3822         _cflags_size="-O1"
3823         if $_cc -nologo- 2>&1 | grep -q Linker; then
3824             _ld_o='-out:$@'
3825         else
3826             _ld_o='-Fe$@'
3827         fi
3828         _cc_o='-Fo$@'
3829         _cc_e='-P -Fi$@'
3830         _flags_filter=msvc_flags
3831         _ld_lib='lib%.a'
3832         _ld_path='-libpath:'
3833         _flags='-nologo'
3834         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3835         disable stripping
3836     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3837         _type=cparser
3838         _ident=$($_cc --version | head -n1)
3839         _depflags='-MMD'
3840         _cflags_speed='-O4'
3841         _cflags_size='-O2'
3842         _flags_filter=cparser_flags
3843     fi
3844
3845     eval ${pfx}_type=\$_type
3846     eval ${pfx}_ident=\$_ident
3847 }
3848
3849 set_ccvars(){
3850     eval ${1}_C=\${_cc_c-\${${1}_C}}
3851     eval ${1}_E=\${_cc_e-\${${1}_E}}
3852     eval ${1}_O=\${_cc_o-\${${1}_O}}
3853
3854     if [ -n "$_depflags" ]; then
3855         eval ${1}_DEPFLAGS=\$_depflags
3856     else
3857         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3858         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3859         eval DEP${1}FLAGS=\$_flags
3860     fi
3861 }
3862
3863 probe_cc cc "$cc" "true"
3864 cflags_filter=$_flags_filter
3865 cflags_speed=$_cflags_speed
3866 cflags_size=$_cflags_size
3867 cflags_noopt=$_cflags_noopt
3868 add_cflags $_flags $_cflags
3869 cc_ldflags=$_ldflags
3870 set_ccvars CC
3871
3872 probe_cc hostcc "$host_cc"
3873 host_cflags_filter=$_flags_filter
3874 add_host_cflags  $_flags $_cflags
3875 set_ccvars HOSTCC
3876
3877 test -n "$cc_type" && enable $cc_type ||
3878     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3879
3880 : ${as_default:=$cc}
3881 : ${objcc_default:=$cc}
3882 : ${dep_cc_default:=$cc}
3883 : ${ld_default:=$cc}
3884 : ${host_ld_default:=$host_cc}
3885 set_default ar as objcc dep_cc ld host_ld windres
3886
3887 probe_cc as "$as"
3888 asflags_filter=$_flags_filter
3889 add_asflags $_flags $_cflags
3890 set_ccvars AS
3891
3892 probe_cc objcc "$objcc"
3893 objcflags_filter=$_flags_filter
3894 add_objcflags $_flags $_cflags
3895 set_ccvars OBJC
3896
3897 probe_cc ld "$ld"
3898 ldflags_filter=$_flags_filter
3899 add_ldflags $_flags $_ldflags
3900 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3901 LD_O=${_ld_o-$LD_O}
3902 LD_LIB=${_ld_lib-$LD_LIB}
3903 LD_PATH=${_ld_path-$LD_PATH}
3904
3905 probe_cc hostld "$host_ld"
3906 host_ldflags_filter=$_flags_filter
3907 add_host_ldflags $_flags $_ldflags
3908 HOSTLD_O=${_ld_o-$HOSTLD_O}
3909
3910 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3911     probe_cc depcc "$dep_cc"
3912     CCDEP=${_DEPCMD:-$DEPCMD}
3913     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3914     DEPCCFLAGS=$_flags
3915 fi
3916
3917 if $ar 2>&1 | grep -q Microsoft; then
3918     arflags="-nologo"
3919     ar_o='-out:$@'
3920 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3921     arflags="rq"
3922     ar_o='$@'
3923 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3924     arflags='-Xany -r -c'
3925     ar_o='$@'
3926 elif $ar 2>&1 | grep -q "\[D\] "; then
3927     arflags="rcD"
3928     ar_o='$@'
3929 else
3930     arflags="rc"
3931     ar_o='$@'
3932 fi
3933
3934 add_cflags $extra_cflags
3935 add_cxxflags $extra_cxxflags
3936 add_objcflags $extra_objcflags
3937 add_asflags $extra_cflags
3938
3939 if test -n "$sysroot"; then
3940     case "$cc_type" in
3941         gcc|llvm_gcc|clang)
3942             add_cppflags --sysroot="$sysroot"
3943             add_ldflags --sysroot="$sysroot"
3944 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3945             add_cppflags -isysroot "$sysroot"
3946             add_ldflags -isysroot "$sysroot"
3947         ;;
3948         tms470)
3949             add_cppflags -I"$sysinclude"
3950             add_ldflags  --sysroot="$sysroot"
3951         ;;
3952     esac
3953 fi
3954
3955 if test "$cpu" = host; then
3956     enabled cross_compile &&
3957         die "--cpu=host makes no sense when cross-compiling."
3958
3959     case "$cc_type" in
3960         gcc|llvm_gcc)
3961             check_native(){
3962                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3963                 sed -n "/cc1.*$1=/{
3964                             s/.*$1=\\([^ ]*\\).*/\\1/
3965                             p
3966                             q
3967                         }" $TMPE
3968             }
3969             cpu=$(check_native -march || check_native -mcpu)
3970         ;;
3971     esac
3972
3973     test "${cpu:-host}" = host &&
3974         die "--cpu=host not supported with compiler $cc"
3975 fi
3976
3977 # Deal with common $arch aliases
3978 case "$arch" in
3979     aarch64|arm64)
3980         arch="aarch64"
3981     ;;
3982     arm*|iPad*|iPhone*)
3983         arch="arm"
3984     ;;
3985     mips*|IP*)
3986         arch="mips"
3987     ;;
3988     parisc*|hppa*)
3989         arch="parisc"
3990     ;;
3991     "Power Macintosh"|ppc*|powerpc*)
3992         arch="ppc"
3993     ;;
3994     s390|s390x)
3995         arch="s390"
3996     ;;
3997     sh4|sh)
3998         arch="sh4"
3999     ;;
4000     sun4u|sparc*)
4001         arch="sparc"
4002     ;;
4003     tilegx|tile-gx)
4004         arch="tilegx"
4005     ;;
4006     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4007         arch="x86"
4008     ;;
4009 esac
4010
4011 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4012 enable $arch
4013
4014 # Add processor-specific flags
4015 if enabled aarch64; then
4016
4017     case $cpu in
4018         armv*)
4019             cpuflags="-march=$cpu"
4020         ;;
4021         *)
4022             cpuflags="-mcpu=$cpu"
4023         ;;
4024     esac
4025
4026 elif enabled alpha; then
4027
4028     cpuflags="-mcpu=$cpu"
4029
4030 elif enabled arm; then
4031
4032     check_arm_arch() {
4033         check_cpp_condition stddef.h \
4034             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4035             $cpuflags
4036     }
4037
4038     probe_arm_arch() {
4039         if   check_arm_arch 4;        then echo armv4;
4040         elif check_arm_arch 4T;       then echo armv4t;
4041         elif check_arm_arch 5;        then echo armv5;
4042         elif check_arm_arch 5E;       then echo armv5e;
4043         elif check_arm_arch 5T;       then echo armv5t;
4044         elif check_arm_arch 5TE;      then echo armv5te;
4045         elif check_arm_arch 5TEJ;     then echo armv5te;
4046         elif check_arm_arch 6;        then echo armv6;
4047         elif check_arm_arch 6J;       then echo armv6j;
4048         elif check_arm_arch 6K;       then echo armv6k;
4049         elif check_arm_arch 6Z;       then echo armv6z;
4050         elif check_arm_arch 6ZK;      then echo armv6zk;
4051         elif check_arm_arch 6T2;      then echo armv6t2;
4052         elif check_arm_arch 7;        then echo armv7;
4053         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4054         elif check_arm_arch 7S;       then echo armv7-a;
4055         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4056         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4057         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4058         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4059         fi
4060     }
4061
4062     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4063
4064     case $cpu in
4065         armv*)
4066             cpuflags="-march=$cpu"
4067             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4068         ;;
4069         *)
4070             cpuflags="-mcpu=$cpu"
4071             case $cpu in
4072                 cortex-a*)                               subarch=armv7a  ;;
4073                 cortex-r*)                               subarch=armv7r  ;;
4074                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4075                 arm11*)                                  subarch=armv6   ;;
4076                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4077                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4078                 *)                             subarch=$(probe_arm_arch) ;;
4079             esac
4080         ;;
4081     esac
4082
4083     case "$subarch" in
4084         armv5t*)    enable fast_clz                ;;
4085         armv[6-8]*)
4086             enable fast_clz
4087             disabled fast_unaligned || enable fast_unaligned
4088             ;;
4089     esac
4090
4091 elif enabled avr32; then
4092
4093     case $cpu in
4094         ap7[02]0[0-2])
4095             subarch="avr32_ap"
4096             cpuflags="-mpart=$cpu"
4097         ;;
4098         ap)
4099             subarch="avr32_ap"
4100             cpuflags="-march=$cpu"
4101         ;;
4102         uc3[ab]*)
4103             subarch="avr32_uc"
4104             cpuflags="-mcpu=$cpu"
4105         ;;
4106         uc)
4107             subarch="avr32_uc"
4108             cpuflags="-march=$cpu"
4109         ;;
4110     esac
4111
4112 elif enabled bfin; then
4113
4114     cpuflags="-mcpu=$cpu"
4115
4116 elif enabled mips; then
4117
4118     cpuflags="-march=$cpu"
4119
4120     case $cpu in
4121         24kc)
4122             disable mips64r6
4123             disable mipsfpu
4124             disable mipsdsp
4125             disable mipsdspr2
4126             disable msa
4127         ;;
4128         24kf*)
4129             disable mips64r6
4130             disable mipsdsp
4131             disable mipsdspr2
4132             disable msa
4133         ;;
4134         24kec|34kc|1004kc)
4135             disable mips64r6
4136             disable mipsfpu
4137             disable mipsdspr2
4138             disable msa
4139         ;;
4140         24kef*|34kf*|1004kf*)
4141             disable mips64r6
4142             disable mipsdspr2
4143             disable msa
4144         ;;
4145         74kc)
4146             disable mips64r6
4147             disable mipsfpu
4148             disable msa
4149         ;;
4150         74kf)
4151             disable mips64r6
4152             disable msa
4153         ;;
4154         p5600)
4155             disable mips64r6
4156             disable mipsdsp
4157             disable mipsdspr2
4158             check_cflags "-mtune=p5600" &&
4159             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4160             add_asflags "-mfp64"
4161         ;;
4162         i6400)
4163             disable mipsdsp
4164             disable mipsdspr2
4165             disable mipsfpu
4166
4167             check_cflags "-mtune=i6400 -mabi=64"
4168             check_ldflags "-mabi=64"
4169         ;;
4170         loongson*)
4171             disable mipsfpu
4172             disable mips32r2
4173             disable mips64r6
4174             disable mipsdsp
4175             disable mipsdspr2
4176             disable msa
4177             enable local_aligned_8 local_aligned_16 local_aligned_32
4178             enable simd_align_16
4179             enable fast_64bit
4180             enable fast_clz
4181             enable fast_cmov
4182             enable fast_unaligned
4183             disable aligned_stack
4184             case $cpu in
4185                 loongson3*)
4186                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4187                 ;;
4188                 loongson2e)
4189                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4190                 ;;
4191                 loongson2f)
4192                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4193                 ;;
4194             esac
4195         ;;
4196         generic)
4197             disable mips64r6
4198             disable msa
4199         ;;
4200         *)
4201             disable mipsfpu
4202             disable mips32r2
4203             disable mips64r6
4204             disable mipsdsp
4205             disable mipsdspr2
4206             disable msa
4207         ;;
4208     esac
4209
4210 elif enabled ppc; then
4211
4212     disable ldbrx
4213
4214     case $(tolower $cpu) in
4215         601|ppc601|powerpc601)
4216             cpuflags="-mcpu=601"
4217             disable altivec
4218         ;;
4219         603*|ppc603*|powerpc603*)
4220             cpuflags="-mcpu=603"
4221             disable altivec
4222         ;;
4223         604*|ppc604*|powerpc604*)
4224             cpuflags="-mcpu=604"
4225             disable altivec
4226         ;;
4227         g3|75*|ppc75*|powerpc75*)
4228             cpuflags="-mcpu=750"
4229             disable altivec
4230         ;;
4231         g4|745*|ppc745*|powerpc745*)
4232             cpuflags="-mcpu=7450"
4233             disable vsx
4234         ;;
4235         74*|ppc74*|powerpc74*)
4236             cpuflags="-mcpu=7400"
4237             disable vsx
4238         ;;
4239         g5|970|ppc970|powerpc970)
4240             cpuflags="-mcpu=970"
4241             disable vsx
4242         ;;
4243         power[3-6]*)
4244             cpuflags="-mcpu=$cpu"
4245             disable vsx
4246         ;;
4247         power[7-8]*)
4248             cpuflags="-mcpu=$cpu"
4249         ;;
4250         cell)
4251             cpuflags="-mcpu=cell"
4252             enable ldbrx
4253             disable vsx
4254         ;;
4255         e500mc)
4256             cpuflags="-mcpu=e500mc"
4257             disable altivec
4258         ;;
4259         e500v2)
4260             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4261             disable altivec
4262             disable dcbzl
4263         ;;
4264         e500)
4265             cpuflags="-mcpu=8540 -mhard-float"
4266             disable altivec
4267             disable dcbzl
4268         ;;
4269     esac
4270
4271 elif enabled sparc; then
4272
4273     case $cpu in
4274         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4275             cpuflags="-mcpu=$cpu"
4276         ;;
4277         ultrasparc*|niagara[234])
4278             cpuflags="-mcpu=$cpu"
4279         ;;
4280     esac
4281
4282 elif enabled x86; then
4283
4284     case $cpu in
4285         i[345]86|pentium)
4286             cpuflags="-march=$cpu"
4287             disable i686
4288             disable mmx
4289         ;;
4290         # targets that do NOT support nopl and conditional mov (cmov)
4291         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4292             cpuflags="-march=$cpu"
4293             disable i686
4294         ;;
4295         # targets that do support nopl and conditional mov (cmov)
4296         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4297         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4298             cpuflags="-march=$cpu"
4299             enable i686
4300             enable fast_cmov
4301         ;;
4302         # targets that do support conditional mov but on which it's slow
4303         pentium4|pentium4m|prescott|nocona)
4304             cpuflags="-march=$cpu"
4305             enable i686
4306             disable fast_cmov
4307         ;;
4308     esac
4309
4310 fi
4311
4312 if [ "$cpu" != generic ]; then
4313     add_cflags  $cpuflags
4314     add_asflags $cpuflags
4315     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4316 fi
4317
4318 # compiler sanity check
4319 check_exec <<EOF
4320 int main(void){ return 0; }
4321 EOF
4322 if test "$?" != 0; then
4323     echo "$cc is unable to create an executable file."
4324     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4325         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4326         echo "Only do this if you know what cross compiling means."
4327     fi
4328     die "C compiler test failed."
4329 fi
4330
4331 add_cppflags -D_ISOC99_SOURCE
4332 add_cxxflags -D__STDC_CONSTANT_MACROS
4333 check_cflags -std=c99
4334 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4335 #include <stdlib.h>
4336 EOF
4337 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4338 #include <stdlib.h>
4339 EOF
4340
4341 add_host_cppflags -D_ISOC99_SOURCE
4342 check_host_cflags -std=c99
4343 check_host_cflags -Wall
4344 check_host_cflags -O3
4345
4346 check_64bit(){
4347     arch32=$1
4348     arch64=$2
4349     expr=$3
4350     check_code cc "" "int test[2*($expr) - 1]" &&
4351         subarch=$arch64 || subarch=$arch32
4352 }
4353
4354 case "$arch" in
4355     aarch64|alpha|ia64)
4356         spic=$shared
4357     ;;
4358     mips)
4359         check_64bit mips mips64 '_MIPS_SIM > 1'
4360         spic=$shared
4361     ;;
4362     parisc)
4363         check_64bit parisc parisc64 'sizeof(void *) > 4'
4364         spic=$shared
4365     ;;
4366     ppc)
4367         check_64bit ppc ppc64 'sizeof(void *) > 4'
4368         spic=$shared
4369     ;;
4370     s390)
4371         check_64bit s390 s390x 'sizeof(void *) > 4'
4372         spic=$shared
4373     ;;
4374     sparc)
4375         check_64bit sparc sparc64 'sizeof(void *) > 4'
4376         spic=$shared
4377     ;;
4378     x86)
4379         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4380         # Treat x32 as x64 for now. Note it also needs spic=$shared
4381         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4382             subarch=x86_64
4383         if test "$subarch" = "x86_64"; then
4384             spic=$shared
4385         fi
4386     ;;
4387     ppc)
4388         check_cc <<EOF && subarch="ppc64"
4389         int test[(int)sizeof(char*) - 7];
4390 EOF
4391     ;;
4392 esac
4393
4394 enable $subarch
4395 enabled spic && enable_weak pic
4396
4397 # OS specific
4398 case $target_os in
4399     aix)
4400         SHFLAGS=-shared
4401         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4402         enabled shared && add_ldflags -Wl,-brtl
4403         ;;
4404     android)
4405         disable symver
4406         enable section_data_rel_ro
4407         SLIB_INSTALL_NAME='$(SLIBNAME)'
4408         SLIB_INSTALL_LINKS=
4409         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4410         ;;
4411     haiku)
4412         prefix_default="/boot/common"
4413         network_extralibs="-lnetwork"
4414         host_libs=
4415         ;;
4416     sunos)
4417         SHFLAGS='-shared -Wl,-h,$$(@F)'
4418         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4419         network_extralibs="-lsocket -lnsl"
4420         add_cppflags -D__EXTENSIONS__
4421         # When using suncc to build, the Solaris linker will mark
4422         # an executable with each instruction set encountered by
4423         # the Solaris assembler.  As our libraries contain their own
4424         # guards for processor-specific code, instead suppress
4425         # generation of the HWCAPS ELF section on Solaris x86 only.
4426         enabled_all suncc x86 &&
4427             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4428             add_ldflags -Wl,-M,mapfile
4429         nm_default='nm -P -g'
4430         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4431         ;;
4432     netbsd)
4433         disable symver
4434         oss_indev_extralibs="-lossaudio"
4435         oss_outdev_extralibs="-lossaudio"
4436         enabled gcc || check_ldflags -Wl,-zmuldefs
4437         ;;
4438     openbsd|bitrig)
4439         disable symver
4440         SHFLAGS='-shared'
4441         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4442         SLIB_INSTALL_LINKS=
4443         oss_indev_extralibs="-lossaudio"
4444         oss_outdev_extralibs="-lossaudio"
4445         ;;
4446     dragonfly)
4447         disable symver
4448         ;;
4449     freebsd)
4450         ;;
4451     bsd/os)
4452         add_extralibs -lpoll -lgnugetopt
4453         strip="strip -d"
4454         ;;
4455     darwin)
4456         enabled ppc && add_asflags -force_cpusubtype_ALL
4457         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4458         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4459         strip="${strip} -x"
4460         add_ldflags -Wl,-dynamic,-search_paths_first
4461         SLIBSUF=".dylib"
4462         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4463         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4464         objformat="macho"
4465         enabled x86_64 && objformat="macho64"
4466         enabled_any pic shared x86_64 ||
4467             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4468         ;;
4469     msys*)
4470         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4471         ;;
4472     mingw32*|mingw64*)
4473         if test $target_os = "mingw32ce"; then
4474             disable network
4475         else
4476             target_os=mingw32
4477         fi
4478         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4479         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4480         LIBTARGET=i386
4481         if enabled x86_64; then
4482             LIBTARGET="i386:x86-64"
4483         elif enabled arm; then
4484             LIBTARGET=arm-wince
4485         fi
4486         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4487         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4488         shlibdir_default="$bindir_default"
4489         SLIBPREF=""
4490         SLIBSUF=".dll"
4491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4493         dlltool="${cross_prefix}dlltool"
4494         if check_cmd lib.exe -list; then
4495             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4496             if enabled x86_64; then
4497                 LIBTARGET=x64
4498             fi
4499         elif check_cmd $dlltool --version; then
4500             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4501         fi
4502         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4503         SLIB_INSTALL_LINKS=
4504         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4505         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4506         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4507         objformat="win32"
4508         ranlib=:
4509         enable dos_paths
4510         check_ldflags -Wl,--nxcompat,--dynamicbase
4511         # Lets work around some stupidity in binutils.
4512         # ld will strip relocations from executables even though we need them
4513         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4514         # however ld then forgets what the entry point should be (oops) so we
4515         # have to manually (re)set it.
4516         if enabled x86_32; then
4517             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4518         elif enabled x86_64; then
4519             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4520             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4521             # Set image base >4GB for extra entropy with HEASLR
4522             add_ldexeflags -Wl,--image-base,0x140000000
4523             append SHFLAGS -Wl,--image-base,0x180000000
4524         fi
4525         ;;
4526     win32|win64)
4527         disable symver
4528         if enabled shared; then
4529             # Link to the import library instead of the normal static library
4530             # for shared libs.
4531             LD_LIB='%.lib'
4532             # Cannot build both shared and static libs with MSVC or icl.
4533             disable static
4534         fi
4535         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4536         shlibdir_default="$bindir_default"
4537         SLIBPREF=""
4538         SLIBSUF=".dll"
4539         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4540         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4541         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4542         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4543         SLIB_INSTALL_LINKS=
4544         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4545         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4546         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4547         objformat="win32"
4548         ranlib=:
4549         enable dos_paths
4550         ;;
4551     cygwin*)
4552         target_os=cygwin
4553         shlibdir_default="$bindir_default"
4554         SLIBPREF="cyg"
4555         SLIBSUF=".dll"
4556         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4557         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4558         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4559         SLIB_INSTALL_LINKS=
4560         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4561         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4562         objformat="win32"
4563         enable dos_paths
4564         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4565         ;;
4566     *-dos|freedos|opendos)
4567         network_extralibs="-lsocket"
4568         objformat="coff"
4569         enable dos_paths
4570         add_cppflags -U__STRICT_ANSI__
4571         ;;
4572     linux)
4573         enable dv1394
4574         enable section_data_rel_ro
4575         ;;
4576     irix*)
4577         target_os=irix
4578         ranlib="echo ignoring ranlib"
4579         ;;
4580     os/2*)
4581         strip="lxlite -CS"
4582         ln_s="cp -f"
4583         objformat="aout"
4584         add_cppflags -D_GNU_SOURCE
4585         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4586         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4587         LIBSUF="_s.a"
4588         SLIBPREF=""
4589         SLIBSUF=".dll"
4590         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4591         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4592         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4593             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4594             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4595             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4596             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4597         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4598             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4599         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4600         enable dos_paths
4601         enable_weak os2threads
4602         ;;
4603     gnu/kfreebsd)
4604         add_cppflags -D_BSD_SOURCE
4605         ;;
4606     gnu)
4607         ;;
4608     qnx)
4609         add_cppflags -D_QNX_SOURCE
4610         network_extralibs="-lsocket"
4611         ;;
4612     symbian)
4613         SLIBSUF=".dll"
4614         enable dos_paths
4615         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4616         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4617         add_ldflags -Wl,--target1-abs,--no-undefined \
4618                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4619                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4620         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4621                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4622                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4623         ;;
4624     osf1)
4625         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4626         ;;
4627     minix)
4628         ;;
4629     plan9)
4630         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4631                      -D_REENTRANT_SOURCE        \
4632                      -D_RESEARCH_SOURCE         \
4633                      -DFD_SETSIZE=96            \
4634                      -DHAVE_SOCK_OPTS
4635         add_compat strtod.o strtod=avpriv_strtod
4636         network_extralibs='-lbsd'
4637         exeobjs=compat/plan9/main.o
4638         disable ffserver
4639         cp_f='cp'
4640         ;;
4641     none)
4642         ;;
4643     *)
4644         die "Unknown OS '$target_os'."
4645         ;;
4646 esac
4647
4648 # determine libc flavour
4649
4650 probe_libc(){
4651     pfx=$1
4652     pfx_no_=${pfx%_}
4653     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4654     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4655         eval ${pfx}libc_type=uclibc
4656         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4657     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4658         eval ${pfx}libc_type=glibc
4659         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4660     # MinGW headers can be installed on Cygwin, so check for newlib first.
4661     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4662         eval ${pfx}libc_type=newlib
4663         add_${pfx}cppflags -U__STRICT_ANSI__
4664     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4665     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4666         eval ${pfx}libc_type=mingw64
4667         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4668             add_compat msvcrt/snprintf.o
4669             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4670         fi
4671         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4672         eval test \$${pfx_no_}cc_type = "gcc" &&
4673             add_${pfx}cppflags -D__printf__=__gnu_printf__
4674     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4675          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4676         eval ${pfx}libc_type=mingw32
4677         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4678             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4679             die "ERROR: MinGW32 runtime version must be >= 3.15."
4680         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4681         eval test \$${pfx_no_}cc_type = "gcc" &&
4682             add_${pfx}cppflags -D__printf__=__gnu_printf__
4683     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4684         eval ${pfx}libc_type=msvcrt
4685         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4686             if [ "$pfx" = host_ ]; then
4687                 add_host_cppflags -Dsnprintf=_snprintf
4688             else
4689                 add_compat strtod.o strtod=avpriv_strtod
4690                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4691                                              _snprintf=avpriv_snprintf  \
4692                                              vsnprintf=avpriv_vsnprintf
4693             fi
4694         fi
4695         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4696         # 0x601 by default unless something else is set by the user.
4697         # This can easily lead to us detecting functions only present
4698         # in such new versions and producing binaries requiring windows 7.0.
4699         # Therefore explicitly set the default to XP unless the user has
4700         # set something else on the command line.
4701         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4702         # family. For these cases, configure is free to use any functions
4703         # found in the SDK headers by default. (Alternatively, we could force
4704         # _WIN32_WINNT to 0x0602 in that case.)
4705         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4706             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4707 #ifdef WINAPI_FAMILY
4708 #include <winapifamily.h>
4709 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4710 #error not desktop
4711 #endif
4712 #endif
4713 EOF
4714     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4715         eval ${pfx}libc_type=klibc
4716     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4717         eval ${pfx}libc_type=bionic
4718     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4719         eval ${pfx}libc_type=solaris
4720         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4721     fi
4722     check_${pfx}cc <<EOF
4723 #include <time.h>
4724 void *v = localtime_r;
4725 EOF
4726 test "$?" != 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
4727 #include <time.h>
4728 void *v = localtime_r;
4729 EOF
4730
4731 }
4732
4733 probe_libc
4734 test -n "$libc_type" && enable libc_$libc_type
4735 probe_libc host_
4736 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4737
4738 case $libc_type in
4739     bionic)
4740         add_compat strtod.o strtod=avpriv_strtod
4741         ;;
4742 esac
4743
4744 # hacks for compiler/libc/os combinations
4745
4746 if enabled_all tms470 libc_glibc; then
4747     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4748     add_cppflags -D__USER_LABEL_PREFIX__=
4749     add_cppflags -D__builtin_memset=memset
4750     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4751     add_cflags   -pds=48    # incompatible redefinition of macro
4752 fi
4753
4754 if enabled_all ccc libc_glibc; then
4755     add_ldflags -Wl,-z,now  # calls to libots crash without this
4756 fi
4757
4758 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4759     add_cppflags '-I\$(SRC_PATH)/compat/float'
4760
4761 esc(){
4762     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4763 }
4764
4765 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4766
4767 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4768
4769 set_default libdir
4770 : ${shlibdir_default:="$libdir"}
4771 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4772
4773 set_default $PATHS_LIST
4774 set_default nm
4775
4776 # we need to build at least one lib type
4777 if ! enabled_any static shared; then
4778     cat <<EOF
4779 At least one library type must be built.
4780 Specify --enable-static to build the static libraries or --enable-shared to
4781 build the shared libraries as well. To only build the shared libraries specify
4782 --disable-static in addition to --enable-shared.
4783 EOF
4784     exit 1;
4785 fi
4786
4787 die_license_disabled() {
4788     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4789 }
4790
4791 die_license_disabled_gpl() {
4792     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4793 }
4794
4795 die_license_disabled gpl frei0r
4796 die_license_disabled gpl libcdio
4797 die_license_disabled gpl librubberband
4798 die_license_disabled gpl libsmbclient
4799 die_license_disabled gpl libutvideo
4800 die_license_disabled gpl libvidstab
4801 die_license_disabled gpl libx264
4802 die_license_disabled gpl libx265
4803 die_license_disabled gpl libxavs
4804 die_license_disabled gpl libxvid
4805 die_license_disabled gpl libzvbi
4806 die_license_disabled gpl x11grab
4807
4808 die_license_disabled nonfree libaacplus
4809 die_license_disabled nonfree libfaac
4810 die_license_disabled nonfree nvenc
4811 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4812 enabled gpl && die_license_disabled_gpl nonfree openssl
4813
4814 die_license_disabled version3 gmp
4815 die_license_disabled version3 libopencore_amrnb
4816 die_license_disabled version3 libopencore_amrwb
4817 die_license_disabled version3 libsmbclient
4818 die_license_disabled version3 libvo_aacenc
4819 die_license_disabled version3 libvo_amrwbenc
4820
4821 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4822
4823 disabled optimizations || check_cflags -fomit-frame-pointer
4824
4825 enable_weak_pic() {
4826     disabled pic && return
4827     enable pic
4828     add_cppflags -DPIC
4829     case "$target_os" in
4830     mingw*|cygwin*)
4831         ;;
4832     *)
4833         add_cflags -fPIC
4834         ;;
4835     esac
4836     add_asflags  -fPIC
4837 }
4838
4839 enabled pic && enable_weak_pic
4840
4841 check_cc <<EOF || die "Symbol mangling check failed."
4842 int ff_extern;
4843 EOF
4844 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4845 extern_prefix=${sym%%ff_extern*}
4846
4847 check_cc <<EOF && enable_weak inline_asm
4848 void foo(void) { __asm__ volatile ("" ::); }
4849 EOF
4850
4851 _restrict=
4852 for restrict_keyword in restrict __restrict__ __restrict; do
4853     check_cc <<EOF && _restrict=$restrict_keyword && break
4854 void foo(char * $restrict_keyword p);
4855 EOF
4856 done
4857
4858 check_cc <<EOF && enable pragma_deprecated
4859 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4860 EOF
4861
4862 check_cc <<EOF && enable attribute_packed
4863 struct { int x; } __attribute__((packed)) x;
4864 EOF
4865
4866 check_cc <<EOF && enable attribute_may_alias
4867 union { int x; } __attribute__((may_alias)) x;
4868 EOF
4869
4870 check_cc <<EOF || die "endian test failed"
4871 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4872 EOF
4873 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4874
4875 if ! enabled ppc64 || enabled bigendian; then
4876     disable vsx
4877 fi
4878
4879 check_gas() {
4880     log "check_gas using '$as' as AS"
4881     # :vararg is used on aarch64, arm and ppc altivec
4882     check_as <<EOF || return 1
4883 .macro m n, y:vararg=0
4884 \n: .int \y
4885 .endm
4886 m x
4887 EOF
4888     # .altmacro is only used in arm asm
4889     ! enabled arm || check_as <<EOF || return 1
4890 .altmacro
4891 EOF
4892     enable gnu_as
4893     return 0
4894 }
4895
4896 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4897     nogas=:
4898     enabled_any arm aarch64 && nogas=die
4899     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4900     as_noop=-v
4901
4902     case $as_type in
4903         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4904         gcc)  gaspp_as_type=gas ;;
4905         *)    gaspp_as_type=$as_type ;;
4906     esac
4907
4908     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4909
4910     test "${as#*gas-preprocessor.pl}" != "$as" ||
4911     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4912         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4913
4914     if ! check_gas ; then
4915         as=${gas:=$as}
4916         check_gas || \
4917             $nogas "GNU assembler not found, install/update gas-preprocessor"
4918     fi
4919
4920     check_as <<EOF && enable as_func
4921 .func test
4922 .endfunc
4923 EOF
4924 fi
4925
4926 check_inline_asm inline_asm_labels '"1:\n"'
4927
4928 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4929
4930 if enabled aarch64; then
4931     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4932     # internal assembler in clang 3.3 does not support this instruction
4933     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4934     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4935
4936     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4937
4938 elif enabled alpha; then
4939
4940     check_cflags -mieee
4941
4942 elif enabled arm; then
4943
4944     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4945
4946     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4947 float func(float a, float b){ return a+b; }
4948 EOF
4949
4950     enabled thumb && check_cflags -mthumb || check_cflags -marm
4951
4952     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4953         enable vfp_args
4954     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4955         enable vfp_args
4956     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4957         case "${cross_prefix:-$cc}" in
4958             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4959             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4960 __asm__ (".eabi_attribute 28, 1");
4961 int main(void) { return 0; }
4962 EOF
4963         esac
4964         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4965     fi
4966
4967     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4968     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4969     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4970     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4971     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4972     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4973     enabled setend  && check_insn setend  'setend be'
4974
4975     [ $target_os = linux ] || [ $target_os = android ] ||
4976         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4977             $ARCH_EXT_LIST_ARM
4978
4979     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4980
4981     check_as <<EOF && enable as_dn_directive
4982 ra .dn d0.i16
4983 .unreq ra
4984 EOF
4985
4986     # llvm's integrated assembler supports .object_arch from llvm 3.5
4987     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4988 .object_arch armv4
4989 EOF
4990
4991     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4992
4993 elif enabled mips; then
4994
4995     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
4996     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
4997     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
4998
4999     # Enable minimum ISA based on selected options
5000     if enabled mips64 && (enabled mipsdsp || enabled mipsdspr2); then
5001         add_cflags "-mips64r2"
5002         add_asflags "-mips64r2"
5003     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
5004         add_cflags "-mips64"
5005         add_asflags "-mips64"
5006     elif enabled mipsdsp || enabled mipsdspr2; then
5007         add_cflags "-mips32r2 -mfp32"
5008         add_asflags "-mips32r2 -mfp32"
5009     elif enabled mips64r6; then
5010         check_cflags "-mfp64"
5011         check_ldflags "-mfp64"
5012     fi
5013
5014     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&
5015      check_ldflags "-mips64r6" &&
5016      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'
5017     enabled mipsdsp && add_cflags "-mdsp" && add_asflags "-mdsp" &&
5018      check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"'
5019     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
5020      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
5021     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
5022      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
5023     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
5024      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
5025
5026     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"
5027     enabled msa && add_asflags "-mmsa"
5028
5029 elif enabled parisc; then
5030
5031     if enabled gcc; then
5032         case $($cc -dumpversion) in
5033             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5034         esac
5035     fi
5036
5037 elif enabled ppc; then
5038
5039     enable local_aligned_8 local_aligned_16 local_aligned_32
5040
5041     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5042     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5043     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5044     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5045
5046     # AltiVec flags: The FSF version of GCC differs from the Apple version
5047     if enabled altivec; then
5048         check_cflags -maltivec -mabi=altivec &&
5049         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5050         check_cflags -faltivec
5051
5052         # check if our compiler supports Motorola AltiVec C API
5053         check_cc <<EOF || disable altivec
5054 $inc_altivec_h
5055 int main(void) {
5056     vector signed int v1 = (vector signed int) { 0 };
5057     vector signed int v2 = (vector signed int) { 1 };
5058     v1 = vec_add(v1, v2);
5059     return 0;
5060 }
5061 EOF
5062
5063         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5064     fi
5065
5066     if enabled vsx; then
5067         check_cflags -mvsx &&
5068         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5069     fi
5070
5071     if enabled power8; then
5072         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5073     fi
5074
5075 elif enabled x86; then
5076
5077     check_builtin rdtsc    intrin.h   "__rdtsc()"
5078     check_builtin mm_empty mmintrin.h "_mm_empty()"
5079
5080     enable local_aligned_8 local_aligned_16 local_aligned_32
5081
5082     # check whether EBP is available on x86
5083     # As 'i' is stored on the stack, this program will crash
5084     # if the base pointer is used to access it because the
5085     # base pointer is cleared in the inline assembly code.
5086     check_exec_crash <<EOF && enable ebp_available
5087 volatile int i=0;
5088 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5089 return i;
5090 EOF
5091
5092     # check whether EBX is available on x86
5093     check_inline_asm ebx_available '""::"b"(0)' &&
5094         check_inline_asm ebx_available '"":::"%ebx"'
5095
5096     # check whether xmm clobbers are supported
5097     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5098
5099     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5100         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5101
5102     # check whether binutils is new enough to compile SSSE3/MMXEXT
5103     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5104     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5105
5106     if ! disabled_any asm mmx yasm; then
5107         if check_cmd $yasmexe --version; then
5108             enabled x86_64 && yasm_extra="-m amd64"
5109             yasm_debug="-g dwarf2"
5110         elif check_cmd nasm -v; then
5111             yasmexe=nasm
5112             yasm_debug="-g -F dwarf"
5113             if enabled x86_64; then
5114                 case "$objformat" in
5115                     elf)   objformat=elf64 ;;
5116                     win32) objformat=win64 ;;
5117                 esac
5118             fi
5119         fi
5120
5121         YASMFLAGS="-f $objformat $yasm_extra"
5122         enabled pic               && append YASMFLAGS "-DPIC"
5123         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5124         case "$objformat" in
5125             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5126         esac
5127
5128         check_yasm "movbe ecx, [5]" && enable yasm ||
5129             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5130         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5131         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5132         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5133         check_yasm "CPU amdnop" || disable cpunop
5134     fi
5135
5136     case "$cpu" in
5137         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5138             disable fast_clz
5139         ;;
5140     esac
5141
5142 fi
5143
5144 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5145
5146 check_ldflags -Wl,--as-needed
5147 check_ldflags -Wl,-z,noexecstack
5148
5149 if check_func dlopen; then
5150     ldl=
5151 elif check_func dlopen -ldl; then
5152     ldl=-ldl
5153 fi
5154
5155 frei0r_filter_extralibs='$ldl'
5156 frei0r_src_filter_extralibs='$ldl'
5157 ladspa_filter_extralibs='$ldl'
5158 nvenc_encoder_extralibs='$ldl'
5159
5160 if ! disabled network; then
5161     check_func getaddrinfo $network_extralibs
5162     check_func inet_aton $network_extralibs
5163
5164     check_type netdb.h "struct addrinfo"
5165     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5166     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5167     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5168     check_type poll.h "struct pollfd"
5169     check_type netinet/sctp.h "struct sctp_event_subscribe"
5170     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5171     check_type netinet/in.h "struct sockaddr_in6"
5172     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5173     check_type "sys/types.h sys/socket.h" socklen_t
5174
5175     # Prefer arpa/inet.h over winsock2
5176     if check_header arpa/inet.h ; then
5177         check_func closesocket
5178     elif check_header winsock2.h ; then
5179         check_func_headers winsock2.h closesocket -lws2 &&
5180             network_extralibs="-lws2" ||
5181         { check_func_headers winsock2.h closesocket -lws2_32 &&
5182             network_extralibs="-lws2_32"; } || disable winsock2_h network
5183         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5184
5185         check_type ws2tcpip.h socklen_t
5186         check_type ws2tcpip.h "struct addrinfo"
5187         check_type ws2tcpip.h "struct group_source_req"
5188         check_type ws2tcpip.h "struct ip_mreq_source"
5189         check_type ws2tcpip.h "struct ipv6_mreq"
5190         check_type winsock2.h "struct pollfd"
5191         check_struct winsock2.h "struct sockaddr" sa_len
5192         check_type ws2tcpip.h "struct sockaddr_in6"
5193         check_type ws2tcpip.h "struct sockaddr_storage"
5194     else
5195         disable network
5196     fi
5197 fi
5198
5199 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5200 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5201 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5202 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5203 check_builtin sarestart signal.h "SA_RESTART"
5204 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5205 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5206 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5207
5208 case "$custom_allocator" in
5209     jemalloc)
5210         # jemalloc by default does not use a prefix
5211         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5212     ;;
5213     tcmalloc)
5214         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5215         malloc_prefix=tc_
5216     ;;
5217 esac
5218
5219 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5220 check_func  ${malloc_prefix}memalign            && enable memalign
5221 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5222
5223 check_func  access
5224 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5225 check_func  fcntl
5226 check_func  fork
5227 check_func  gethrtime
5228 check_func  getopt
5229 check_func  getrusage
5230 check_func  gettimeofday
5231 check_func  isatty
5232 check_func  mach_absolute_time
5233 check_func  mkstemp
5234 check_func  mmap
5235 check_func  mprotect
5236 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5237 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5238 check_func  sched_getaffinity
5239 check_func  setrlimit
5240 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5241 check_func  strerror_r
5242 check_func  sysconf
5243 check_func  sysctl
5244 check_func  usleep
5245
5246 check_func_headers conio.h kbhit
5247 check_func_headers io.h setmode
5248 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5249 check_func_headers stdlib.h getenv
5250 check_func_headers sys/stat.h lstat
5251
5252 check_func_headers windows.h CoTaskMemFree -lole32
5253 check_func_headers windows.h GetProcessAffinityMask
5254 check_func_headers windows.h GetProcessTimes
5255 check_func_headers windows.h GetSystemTimeAsFileTime
5256 check_func_headers windows.h MapViewOfFile
5257 check_func_headers windows.h PeekNamedPipe
5258 check_func_headers windows.h SetConsoleTextAttribute
5259 check_func_headers windows.h SetConsoleCtrlHandler
5260 check_func_headers windows.h Sleep
5261 check_func_headers windows.h VirtualAlloc
5262 check_struct windows.h "CONDITION_VARIABLE" Ptr
5263 check_func_headers glob.h glob
5264 enabled xlib &&
5265     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5266
5267 check_header direct.h
5268 check_header dirent.h
5269 check_header dlfcn.h
5270 check_header d3d11.h
5271 check_header dxva.h
5272 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5273 check_header io.h
5274 check_header libcrystalhd/libcrystalhd_if.h
5275 check_header mach/mach_time.h
5276 check_header malloc.h
5277 check_header net/udplite.h
5278 check_header poll.h
5279 check_header sys/mman.h
5280 check_header sys/param.h
5281 check_header sys/resource.h
5282 check_header sys/select.h
5283 check_header sys/time.h
5284 check_header sys/un.h
5285 check_header termios.h
5286 check_header unistd.h
5287 check_header valgrind/valgrind.h
5288 check_header vdpau/vdpau.h
5289 check_header vdpau/vdpau_x11.h
5290 check_header VideoDecodeAcceleration/VDADecoder.h
5291 check_header VideoToolbox/VideoToolbox.h
5292 check_header windows.h
5293 check_header X11/extensions/XvMClib.h
5294 check_header asm/types.h
5295
5296 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5297 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5298 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5299 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5300
5301 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5302
5303 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5304 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5305 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5306 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5307 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5308
5309 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5310
5311 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5312
5313 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5314
5315 if ! disabled w32threads && ! enabled pthreads; then
5316     check_func_headers "windows.h process.h" _beginthreadex &&
5317         enable w32threads || disable w32threads
5318     if ! enabled w32threads && enabled winrt; then
5319         check_func_headers "windows.h" CreateThread &&
5320             enable w32threads || disable w32threads
5321     fi
5322 fi
5323
5324 # check for some common methods of building with pthread support
5325 # do this before the optional library checks as some of them require pthreads
5326 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5327     enable pthreads
5328     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5329         add_cflags -pthread
5330         add_extralibs -pthread
5331     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5332         add_cflags -pthreads
5333         add_extralibs -pthreads
5334     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5335         add_cflags -ldl -pthread
5336         add_extralibs -ldl -pthread
5337     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5338         add_extralibs -lpthreadGC2
5339     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5340         :
5341     elif ! check_func pthread_join && ! check_func pthread_create; then
5342         disable pthreads
5343     fi
5344     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5345 fi
5346
5347
5348 if enabled pthreads; then
5349   check_func pthread_cancel
5350 fi
5351
5352 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5353 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5354 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5355
5356 check_lib math.h sin -lm && LIBM="-lm"
5357 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5358
5359 atan2f_args=2
5360 copysign_args=2
5361 hypot_args=2
5362 ldexpf_args=2
5363 powf_args=2
5364
5365 for func in $MATH_FUNCS; do
5366     eval check_mathfunc $func \${${func}_args:-1}
5367 done
5368
5369 for func in $COMPLEX_FUNCS; do
5370     eval check_complexfunc $func \${${func}_args:-1}
5371 done
5372
5373 # these are off by default, so fail if requested and not available
5374 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5375 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5376                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5377 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5378                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5379                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5380 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5381 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5382 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5383 enabled gcrypt            && require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5384 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5385 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5386 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5387 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5388 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5389 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5390 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5391 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5392 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5393                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5394                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5395 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5396 enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create
5397 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5398 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5399                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5400                                  warn "using libfdk without pkg-config"; } }
5401 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"
5402 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5403 enabled fontconfig        && enable libfontconfig
5404 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5405 enabled libfreetype       && require_libfreetype
5406 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5407 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5408 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5409                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5410                                done || die "ERROR: libgsm not found"; }
5411 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5412 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
5413 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5414 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5415 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5416 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5417 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5418 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5419 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5420 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5421 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
5422                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5423                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5424                                die "ERROR: libopenjpeg not found"; }
5425 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5426 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5427 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5428 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5429 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5430 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5431 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5432 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5433                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5434 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5435 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5436 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5437 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5438 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5439     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5440     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5441 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5442 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5443 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5444                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5445                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5446 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5447 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5448 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5449 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5450 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5451 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5452
5453 enabled libvpx            && {
5454     enabled libvpx_vp8_decoder && {
5455         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5456             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5457                 die "ERROR: libvpx decoder version must be >=0.9.1";
5458     }
5459     enabled libvpx_vp8_encoder && {
5460         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5461             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5462                 die "ERROR: libvpx encoder version must be >=0.9.7";
5463     }
5464     enabled libvpx_vp9_decoder && {
5465         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5466             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5467                 disable libvpx_vp9_decoder;
5468     }
5469     enabled libvpx_vp9_encoder && {
5470         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5471             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5472                 disable libvpx_vp9_encoder;
5473     }
5474     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5475         die "libvpx enabled but no supported decoders found"
5476     fi
5477 }
5478
5479 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5480 enabled libwebp           && {
5481     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5482     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5483 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5484                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5485                                  warn "using libx264 without pkg-config"; } } &&
5486                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5487                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5488                              { check_cpp_condition x264.h "X264_MPEG2" &&
5489                                enable libx262; }
5490 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5491                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5492                                die "ERROR: libx265 version must be >= 57."; }
5493 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5494 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5495 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5496 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5497 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5498 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5499                                 { ! enabled cross_compile && {
5500                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5501                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5502                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5503                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5504                                die "ERROR: mmal not found"; }
5505 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5506                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5507                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5508                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5509 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5510                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5511                                die "ERROR: openal not found"; } &&
5512                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5513                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5514 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5515                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5516                                die "ERROR: opencl not found"; } &&
5517                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5518                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5519                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5520 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5521                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5522                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5523                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5524                                die "ERROR: opengl not found."
5525                              }
5526 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5527                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5528                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5529                                die "ERROR: openssl not found"; }
5530 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5531
5532 # libdc1394 check
5533 if enabled libdc1394; then
5534     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5535         enable libdc1394_2; } ||
5536     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5537         enable libdc1394_1; } ||
5538     die "ERROR: No version of libdc1394 found "
5539 fi
5540 if ! disabled sdl; then
5541     SDL_CONFIG="${cross_prefix}sdl-config"
5542     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5543         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5544         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5545         enable sdl
5546     else
5547         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5548             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5549             sdl_libs=$("${SDL_CONFIG}" --libs)
5550             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5551             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5552             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5553             enable sdl
5554         elif enabled sdl ; then
5555             die "ERROR: SDL not found"
5556         else
5557             disable sdl
5558         fi
5559     fi
5560     if test $target_os = "mingw32"; then
5561         sdl_libs="$sdl_libs -mconsole"
5562     fi
5563 fi
5564 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5565
5566 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5567     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5568     enable securetransport; }
5569
5570 disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&
5571                        enable schannel && add_extralibs -lSecur32; }
5572
5573 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5574 enabled makeinfo \
5575     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5576     && enable makeinfo_html || disable makeinfo_html
5577 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5578 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5579 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5580 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5581
5582 check_header linux/fb.h
5583 check_header linux/videodev.h
5584 check_header linux/videodev2.h
5585 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5586
5587 check_header sys/videoio.h
5588 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5589
5590 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5591 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5592 # w32api 3.12 had it defined wrong
5593 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5594
5595 check_type "dshow.h" IBaseFilter
5596
5597 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5598 { check_header dev/bktr/ioctl_meteor.h &&
5599   check_header dev/bktr/ioctl_bt848.h; } ||
5600 { check_header machine/ioctl_meteor.h &&
5601   check_header machine/ioctl_bt848.h; } ||
5602 { check_header dev/video/meteor/ioctl_meteor.h &&
5603   check_header dev/video/bktr/ioctl_bt848.h; } ||
5604 check_header dev/ic/bt8xx.h
5605
5606 check_header sndio.h
5607 if check_struct sys/soundcard.h audio_buf_info bytes; then
5608     enable_safe sys/soundcard.h
5609 else
5610     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5611     #include <sys/soundcard.h>
5612     audio_buf_info abc;
5613 EOF
5614 fi
5615 check_header soundcard.h
5616
5617 enabled_any alsa_indev alsa_outdev &&
5618     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5619
5620 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5621     check_func jack_port_get_latency_range -ljack
5622
5623 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5624
5625 if enabled libcdio; then
5626     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5627     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5628     die "ERROR: No usable libcdio/cdparanoia found"
5629 fi
5630
5631 enabled xlib &&
5632     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5633
5634 if ! disabled libxcb; then
5635     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5636         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5637     } && disable x11grab && enable libxcb
5638
5639 if enabled libxcb; then
5640     disabled libxcb_shm || {
5641         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5642             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5643         } && check_header sys/shm.h && enable libxcb_shm; }
5644
5645     disabled libxcb_xfixes || {
5646         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5647             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5648         } && enable libxcb_xfixes; }
5649
5650     disabled libxcb_shape || {
5651         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5652             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5653         } && enable libxcb_shape; }
5654
5655     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5656     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5657 fi
5658 fi
5659
5660 if enabled x11grab; then
5661     enabled xlib || die "ERROR: Xlib not found"
5662     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5663     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5664 fi
5665
5666 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5667
5668 enabled dxva2api_h &&
5669     check_cc <<EOF && enable dxva2api_cobj
5670 #define _WIN32_WINNT 0x0600
5671 #define COBJMACROS
5672 #include <windows.h>
5673 #include <d3d9.h>
5674 #include <dxva2api.h>
5675 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5676 EOF
5677
5678 enabled vaapi &&
5679     check_lib va/va.h vaInitialize -lva ||
5680     disable vaapi
5681
5682 enabled vaapi && enabled xlib &&
5683     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5684     enable vaapi_x11
5685
5686 enabled vdpau &&
5687     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5688     disable vdpau
5689
5690 enabled vdpau && enabled xlib &&
5691     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5692     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5693     enable vdpau_x11
5694
5695 # Funny iconv installations are not unusual, so check it after all flags have been set
5696 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5697
5698 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5699
5700 # add some useful compiler flags if supported
5701 check_cflags -Wdeclaration-after-statement
5702 check_cflags -Wall
5703 check_cflags -Wdisabled-optimization
5704 check_cflags -Wpointer-arith
5705 check_cflags -Wredundant-decls
5706 check_cflags -Wwrite-strings
5707 check_cflags -Wtype-limits
5708 check_cflags -Wundef
5709 check_cflags -Wmissing-prototypes
5710 check_cflags -Wno-pointer-to-int-cast
5711 check_cflags -Wstrict-prototypes
5712 check_cflags -Wempty-body
5713 enabled extra_warnings && check_cflags -Winline
5714 enabled extra_warnings && check_cflags -Wcast-qual
5715
5716 check_disable_warning(){
5717     warning_flag=-W${1#-Wno-}
5718     test_cflags $warning_flag && add_cflags $1
5719 }
5720
5721 check_disable_warning -Wno-parentheses
5722 check_disable_warning -Wno-switch
5723 check_disable_warning -Wno-format-zero-length
5724 check_disable_warning -Wno-pointer-sign
5725
5726 # add some linker flags
5727 check_ldflags -Wl,--warn-common
5728 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5729 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5730 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5731 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5732
5733 # add some strip flags
5734 # -wN '..@*' is more selective than -x, but not available everywhere.
5735 check_stripflags -wN \'..@*\' || check_stripflags -x
5736
5737 enabled neon_clobber_test &&
5738     check_ldflags -Wl,--wrap,avcodec_open2              \
5739                   -Wl,--wrap,avcodec_decode_audio4      \
5740                   -Wl,--wrap,avcodec_decode_video2      \
5741                   -Wl,--wrap,avcodec_decode_subtitle2   \
5742                   -Wl,--wrap,avcodec_encode_audio2      \
5743                   -Wl,--wrap,avcodec_encode_video2      \
5744                   -Wl,--wrap,avcodec_encode_subtitle    \
5745                   -Wl,--wrap,swr_convert                \
5746                   -Wl,--wrap,avresample_convert ||
5747     disable neon_clobber_test
5748
5749 enabled xmm_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                   -Wl,--wrap,sws_scale ||
5760     disable xmm_clobber_test
5761
5762 echo "X { local: *; };" > $TMPV
5763 if test_ldflags -Wl,--version-script,$TMPV; then
5764     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5765 elif test_ldflags -Wl,-M,$TMPV; then
5766     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5767 fi
5768
5769 check_cc <<EOF && enable symver_asm_label
5770 void ff_foo(void) __asm__ ("av_foo@VERSION");
5771 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5772 EOF
5773     check_cc <<EOF && enable symver_gnu_asm
5774 __asm__(".symver ff_foo,av_foo@VERSION");
5775 void ff_foo(void) {}
5776 EOF
5777
5778 if [ -z "$optflags" ]; then
5779     if enabled small; then
5780         optflags=$cflags_size
5781     elif enabled optimizations; then
5782         optflags=$cflags_speed
5783     else
5784         optflags=$cflags_noopt
5785     fi
5786 fi
5787
5788 check_optflags(){
5789     check_cflags "$@"
5790     enabled lto && check_ldflags "$@"
5791 }
5792
5793
5794 if enabled lto; then
5795     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5796     check_cflags  -flto
5797     check_ldflags -flto $cpuflags
5798     disable inline_asm_direct_symbol_refs
5799 fi
5800
5801 check_optflags $optflags
5802 check_optflags -fno-math-errno
5803 check_optflags -fno-signed-zeros
5804
5805 enabled ftrapv && check_cflags -ftrapv
5806
5807 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5808 int x;
5809 EOF
5810
5811
5812 if enabled icc; then
5813     # Just warnings, no remarks
5814     check_cflags -w1
5815     # -wd: Disable following warnings
5816     # 144, 167, 556: -Wno-pointer-sign
5817     # 188: enumerated type mixed with another type
5818     # 1292: attribute "foo" ignored
5819     # 1419: external declaration in primary source file
5820     # 10006: ignoring unknown option -fno-signed-zeros
5821     # 10148: ignoring unknown option -Wno-parentheses
5822     # 10156: ignoring option '-W'; no argument required
5823     # 13200: No EMMS instruction before call to function
5824     # 13203: No EMMS instruction before return from function
5825     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5826     # 11030: Warning unknown option --as-needed
5827     # 10156: ignoring option '-export'; no argument required
5828     check_ldflags -wd10156,11030
5829     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5830     enable ebp_available
5831     # The test above does not test linking
5832     enabled lto && disable symver_asm_label
5833     if enabled x86_32; then
5834         icc_version=$($cc -dumpversion)
5835         test ${icc_version%%.*} -ge 11 &&
5836             check_cflags -falign-stack=maintain-16-byte ||
5837             disable aligned_stack
5838     fi
5839 elif enabled ccc; then
5840     # disable some annoying warnings
5841     add_cflags -msg_disable bitnotint
5842     add_cflags -msg_disable mixfuncvoid
5843     add_cflags -msg_disable nonstandcast
5844     add_cflags -msg_disable unsupieee
5845 elif enabled gcc; then
5846     check_optflags -fno-tree-vectorize
5847     check_cflags -Werror=format-security
5848     check_cflags -Werror=implicit-function-declaration
5849     check_cflags -Werror=missing-prototypes
5850     check_cflags -Werror=return-type
5851     check_cflags -Werror=vla
5852     check_cflags -Wformat
5853     check_cflags -fdiagnostics-color=auto
5854     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5855 elif enabled llvm_gcc; then
5856     check_cflags -mllvm -stack-alignment=16
5857 elif enabled clang; then
5858     check_cflags -mllvm -stack-alignment=16
5859     check_cflags -Qunused-arguments
5860     check_cflags -Werror=implicit-function-declaration
5861     check_cflags -Werror=missing-prototypes
5862     check_cflags -Werror=return-type
5863 elif enabled cparser; then
5864     add_cflags -Wno-missing-variable-declarations
5865     add_cflags -Wno-empty-statement
5866 elif enabled armcc; then
5867     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5868     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5869     # 2523: use of inline assembly is deprecated
5870     add_cflags -W${armcc_opt},--diag_suppress=2523
5871     add_cflags -W${armcc_opt},--diag_suppress=1207
5872     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5873     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5874     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5875     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5876 elif enabled tms470; then
5877     add_cflags -pds=824 -pds=837
5878     disable inline_asm
5879 elif enabled pathscale; then
5880     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5881 elif enabled_any msvc icl; then
5882     enabled x86_32 && disable aligned_stack
5883     enabled_all x86_32 debug && add_cflags -Oy-
5884     enabled debug && add_ldflags -debug
5885     enable pragma_deprecated
5886     if enabled icl; then
5887         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5888         # (correctly) on icl 13.x.
5889         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5890             add_cflags -Qansi-alias
5891         # Some inline asm is not compilable in debug
5892         if enabled debug; then
5893             disable ebp_available
5894             disable ebx_available
5895         fi
5896     fi
5897     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5898     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5899     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5900     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5901     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5902     # MSVC 2013 and newer can handle it fine.
5903     # If this declspec fails, force including stdlib.h before the restrict redefinition
5904     # happens in config.h.
5905     if [ $_restrict != restrict ]; then
5906         check_cc <<EOF || add_cflags -FIstdlib.h
5907 __declspec($_restrict) void* foo(int);
5908 EOF
5909     fi
5910     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5911 fi
5912
5913 for pfx in "" host_; do
5914     varname=${pfx%_}cc_type
5915     eval "type=\$$varname"
5916     if [ $type = "msvc" ]; then
5917         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5918 static inline int foo(int a) { return a; }
5919 EOF
5920     fi
5921 done
5922
5923 case $as_type in
5924     clang)
5925         add_asflags -Qunused-arguments
5926     ;;
5927 esac
5928
5929 case $ld_type in
5930     clang)
5931         check_ldflags -Qunused-arguments
5932     ;;
5933 esac
5934
5935 case $target_os in
5936     osf1)
5937         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5938     ;;
5939     plan9)
5940         add_cppflags -Dmain=plan9_main
5941     ;;
5942 esac
5943
5944 enable frame_thread_encoder
5945
5946 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5947
5948 check_deps $CONFIG_LIST       \
5949            $CONFIG_EXTRA      \
5950            $HAVE_LIST         \
5951            $ALL_COMPONENTS    \
5952
5953 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"
5954
5955
5956 if test $target_os = "haiku"; then
5957     disable memalign
5958     disable posix_memalign
5959 fi
5960
5961 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5962     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5963     enable dxva2_lib
5964
5965 ! enabled_any memalign posix_memalign aligned_malloc &&
5966     enabled simd_align_16 && enable memalign_hack
5967
5968 # add_dep lib dep
5969 # -> enable ${lib}_deps_${dep}
5970 # -> add $dep to ${lib}_deps only once
5971 add_dep() {
5972     lib=$1
5973     dep=$2
5974     enabled "${lib}_deps_${dep}" && return 0
5975     enable  "${lib}_deps_${dep}"
5976     prepend "${lib}_deps" $dep
5977 }
5978
5979 # merge deps lib components
5980 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5981 merge_deps() {
5982     lib=$1
5983     shift
5984     for comp in $*; do
5985         enabled $comp || continue
5986         eval "dep=\"\$${comp}_deps\""
5987         for d in $dep; do
5988             add_dep $lib $d
5989         done
5990     done
5991 }
5992
5993 merge_deps libavfilter $FILTER_LIST
5994
5995 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5996
5997 for thread in $THREADS_LIST; do
5998     if enabled $thread; then
5999         test -n "$thread_type" &&
6000             die "ERROR: Only one thread type must be selected." ||
6001             thread_type="$thread"
6002     fi
6003 done
6004
6005 enabled zlib && add_cppflags -DZLIB_CONST
6006
6007 # conditional library dependencies, in linking order
6008 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6009 enabled aresample_filter    && prepend avfilter_deps "swresample"
6010 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6011 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6012 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6013 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6014 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6015 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6016 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6017 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6018 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6019 enabled pan_filter          && prepend avfilter_deps "swresample"
6020 enabled pp_filter           && prepend avfilter_deps "postproc"
6021 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6022 enabled resample_filter && prepend avfilter_deps "avresample"
6023 enabled sab_filter          && prepend avfilter_deps "swscale"
6024 enabled scale_filter    && prepend avfilter_deps "swscale"
6025 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6026 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6027 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6028 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6029 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6030
6031 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6032
6033 enabled opus_decoder    && prepend avcodec_deps "swresample"
6034
6035 expand_deps(){
6036     lib_deps=${1}_deps
6037     eval "deps=\$$lib_deps"
6038     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6039     unique $lib_deps
6040 }
6041
6042 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6043 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6044
6045 map 'expand_deps $v' $LIBRARY_LIST
6046
6047 echo "install prefix            $prefix"
6048 echo "source path               $source_path"
6049 echo "C compiler                $cc"
6050 echo "C library                 $libc_type"
6051 if test "$host_cc" != "$cc"; then
6052     echo "host C compiler           $host_cc"
6053     echo "host C library            $host_libc_type"
6054 fi
6055 echo "ARCH                      $arch ($cpu)"
6056 if test "$build_suffix" != ""; then
6057     echo "build suffix              $build_suffix"
6058 fi
6059 if test "$progs_suffix" != ""; then
6060     echo "progs suffix              $progs_suffix"
6061 fi
6062 if test "$extra_version" != ""; then
6063     echo "version string suffix     $extra_version"
6064 fi
6065 echo "big-endian                ${bigendian-no}"
6066 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6067 if enabled x86; then
6068     echo "${yasmexe}                      ${yasm-no}"
6069     echo "MMX enabled               ${mmx-no}"
6070     echo "MMXEXT enabled            ${mmxext-no}"
6071     echo "3DNow! enabled            ${amd3dnow-no}"
6072     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6073     echo "SSE enabled               ${sse-no}"
6074     echo "SSSE3 enabled             ${ssse3-no}"
6075     echo "AESNI enabled             ${aesni-no}"
6076     echo "AVX enabled               ${avx-no}"
6077     echo "XOP enabled               ${xop-no}"
6078     echo "FMA3 enabled              ${fma3-no}"
6079     echo "FMA4 enabled              ${fma4-no}"
6080     echo "i686 features enabled     ${i686-no}"
6081     echo "CMOV is fast              ${fast_cmov-no}"
6082     echo "EBX available             ${ebx_available-no}"
6083     echo "EBP available             ${ebp_available-no}"
6084 fi
6085 if enabled aarch64; then
6086     echo "NEON enabled              ${neon-no}"
6087     echo "VFP enabled               ${vfp-no}"
6088 fi
6089 if enabled arm; then
6090     echo "ARMv5TE enabled           ${armv5te-no}"
6091     echo "ARMv6 enabled             ${armv6-no}"
6092     echo "ARMv6T2 enabled           ${armv6t2-no}"
6093     echo "VFP enabled               ${vfp-no}"
6094     echo "NEON enabled              ${neon-no}"
6095     echo "THUMB enabled             ${thumb-no}"
6096 fi
6097 if enabled mips; then
6098     echo "MIPS FPU enabled          ${mipsfpu-no}"
6099     echo "MIPS64R6 enabled          ${mips64r6-no}"
6100     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6101     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6102     echo "MIPS MSA enabled          ${msa-no}"
6103     echo "LOONGSON MMI enabled      ${mmi-no}"
6104 fi
6105 if enabled ppc; then
6106     echo "AltiVec enabled           ${altivec-no}"
6107     echo "VSX enabled               ${vsx-no}"
6108     echo "POWER8 enabled            ${power8-no}"
6109     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6110     echo "dcbzl available           ${dcbzl-no}"
6111 fi
6112 echo "debug symbols             ${debug-no}"
6113 echo "strip symbols             ${stripping-no}"
6114 echo "optimize for size         ${small-no}"
6115 echo "optimizations             ${optimizations-no}"
6116 echo "static                    ${static-no}"
6117 echo "shared                    ${shared-no}"
6118 echo "postprocessing support    ${postproc-no}"
6119 echo "new filter support        ${avfilter-no}"
6120 echo "network support           ${network-no}"
6121 echo "threading support         ${thread_type-no}"
6122 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6123 echo "SDL support               ${sdl-no}"
6124 echo "opencl enabled            ${opencl-no}"
6125 echo "texi2html enabled         ${texi2html-no}"
6126 echo "perl enabled              ${perl-no}"
6127 echo "pod2man enabled           ${pod2man-no}"
6128 echo "makeinfo enabled          ${makeinfo-no}"
6129 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6130 test -n "$random_seed" &&
6131     echo "random seed               ${random_seed}"
6132 echo
6133
6134 echo "Enabled programs:"
6135 print_enabled '' $PROGRAM_LIST | print_in_columns
6136 echo
6137
6138 echo "External libraries:"
6139 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6140 echo
6141
6142 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6143     echo "Enabled ${type}s:"
6144     eval list=\$$(toupper $type)_LIST
6145     print_enabled '_*' $list | print_in_columns
6146     echo
6147 done
6148
6149 license="LGPL version 2.1 or later"
6150 if enabled nonfree; then
6151     license="nonfree and unredistributable"
6152 elif enabled gplv3; then
6153     license="GPL version 3 or later"
6154 elif enabled lgplv3; then
6155     license="LGPL version 3 or later"
6156 elif enabled gpl; then
6157     license="GPL version 2 or later"
6158 fi
6159
6160 echo "License: $license"
6161
6162 echo "Creating config.mak, config.h, and doc/config.texi..."
6163
6164 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6165
6166 enabled stripping || strip="echo skipping strip"
6167
6168 config_files="$TMPH config.mak doc/config.texi"
6169
6170 cat > config.mak <<EOF
6171 # Automatically generated by configure - do not modify!
6172 ifndef FFMPEG_CONFIG_MAK
6173 FFMPEG_CONFIG_MAK=1
6174 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6175 prefix=$prefix
6176 LIBDIR=\$(DESTDIR)$libdir
6177 SHLIBDIR=\$(DESTDIR)$shlibdir
6178 INCDIR=\$(DESTDIR)$incdir
6179 BINDIR=\$(DESTDIR)$bindir
6180 DATADIR=\$(DESTDIR)$datadir
6181 DOCDIR=\$(DESTDIR)$docdir
6182 MANDIR=\$(DESTDIR)$mandir
6183 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6184 SRC_PATH=$source_path
6185 ifndef MAIN_MAKEFILE
6186 SRC_PATH:=\$(SRC_PATH:.%=..%)
6187 endif
6188 CC_IDENT=$cc_ident
6189 ARCH=$arch
6190 INTRINSICS=$intrinsics
6191 CC=$cc
6192 CXX=$cxx
6193 AS=$as
6194 OBJCC=$objcc
6195 LD=$ld
6196 DEPCC=$dep_cc
6197 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6198 DEPAS=$as
6199 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6200 YASM=$yasmexe
6201 DEPYASM=$yasmexe
6202 AR=$ar
6203 ARFLAGS=$arflags
6204 AR_O=$ar_o
6205 RANLIB=$ranlib
6206 STRIP=$strip
6207 CP=cp -p
6208 LN_S=$ln_s
6209 CPPFLAGS=$CPPFLAGS
6210 CFLAGS=$CFLAGS
6211 CXXFLAGS=$CXXFLAGS
6212 OBJCFLAGS=$OBJCFLAGS
6213 ASFLAGS=$ASFLAGS
6214 AS_C=$AS_C
6215 AS_O=$AS_O
6216 OBJCC_C=$OBJCC_C
6217 OBJCC_E=$OBJCC_E
6218 OBJCC_O=$OBJCC_O
6219 CC_C=$CC_C
6220 CC_E=$CC_E
6221 CC_O=$CC_O
6222 CXX_C=$CXX_C
6223 CXX_O=$CXX_O
6224 LD_O=$LD_O
6225 LD_LIB=$LD_LIB
6226 LD_PATH=$LD_PATH
6227 DLLTOOL=$dlltool
6228 WINDRES=$windres
6229 DEPWINDRES=$dep_cc
6230 DOXYGEN=$doxygen
6231 LDFLAGS=$LDFLAGS
6232 LDEXEFLAGS=$LDEXEFLAGS
6233 LDLIBFLAGS=$LDLIBFLAGS
6234 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6235 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6236 YASMFLAGS=$YASMFLAGS
6237 BUILDSUF=$build_suffix
6238 PROGSSUF=$progs_suffix
6239 FULLNAME=$FULLNAME
6240 LIBPREF=$LIBPREF
6241 LIBSUF=$LIBSUF
6242 LIBNAME=$LIBNAME
6243 SLIBPREF=$SLIBPREF
6244 SLIBSUF=$SLIBSUF
6245 EXESUF=$EXESUF
6246 EXTRA_VERSION=$extra_version
6247 CCDEP=$CCDEP
6248 CXXDEP=$CXXDEP
6249 CCDEP_FLAGS=$CCDEP_FLAGS
6250 ASDEP=$ASDEP
6251 ASDEP_FLAGS=$ASDEP_FLAGS
6252 CC_DEPFLAGS=$CC_DEPFLAGS
6253 AS_DEPFLAGS=$AS_DEPFLAGS
6254 HOSTCC=$host_cc
6255 HOSTLD=$host_ld
6256 HOSTCFLAGS=$host_cflags
6257 HOSTCPPFLAGS=$host_cppflags
6258 HOSTEXESUF=$HOSTEXESUF
6259 HOSTLDFLAGS=$host_ldflags
6260 HOSTLIBS=$host_libs
6261 DEPHOSTCC=$host_cc
6262 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6263 HOSTCCDEP=$HOSTCCDEP
6264 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6265 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6266 HOSTCC_C=$HOSTCC_C
6267 HOSTCC_O=$HOSTCC_O
6268 HOSTLD_O=$HOSTLD_O
6269 TARGET_EXEC=$target_exec $target_exec_args
6270 TARGET_PATH=$target_path
6271 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6272 CFLAGS-ffplay=$sdl_cflags
6273 ZLIB=$($ldflags_filter -lz)
6274 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6275 EXTRALIBS=$extralibs
6276 COMPAT_OBJS=$compat_objs
6277 EXEOBJS=$exeobjs
6278 INSTALL=$install
6279 LIBTARGET=${LIBTARGET}
6280 SLIBNAME=${SLIBNAME}
6281 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6282 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6283 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6284 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6285 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6286 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6287 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6288 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6289 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6290 NOREDZONE_FLAGS=$noredzone_flags
6291 EOF
6292
6293 get_version(){
6294     lcname=lib${1}
6295     name=$(toupper $lcname)
6296     file=$source_path/$lcname/version.h
6297     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6298     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6299     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6300     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6301     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6302     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6303 }
6304
6305 map 'get_version $v' $LIBRARY_LIST
6306
6307 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6308
6309 print_program_libs(){
6310     eval "program_libs=\$${1}_libs"
6311     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6312 }
6313
6314 map 'print_program_libs $v' $PROGRAM_LIST
6315
6316 cat > $TMPH <<EOF
6317 /* Automatically generated by configure - do not modify! */
6318 #ifndef FFMPEG_CONFIG_H
6319 #define FFMPEG_CONFIG_H
6320 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6321 #define FFMPEG_LICENSE "$(c_escape $license)"
6322 #define CONFIG_THIS_YEAR 2015
6323 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6324 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6325 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6326 #define av_restrict $_restrict
6327 #define EXTERN_PREFIX "${extern_prefix}"
6328 #define EXTERN_ASM ${extern_prefix}
6329 #define BUILDSUF "$build_suffix"
6330 #define SLIBSUF "$SLIBSUF"
6331 #define HAVE_MMX2 HAVE_MMXEXT
6332 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6333 EOF
6334
6335 test -n "$assert_level" &&
6336     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6337
6338 test -n "$malloc_prefix" &&
6339     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6340
6341 if enabled yasm; then
6342     append config_files $TMPASM
6343     printf '' >$TMPASM
6344 fi
6345
6346 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6347
6348
6349 mkdir -p doc
6350 mkdir -p tests
6351 mkdir -p tests/api
6352 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6353
6354 print_config ARCH_   "$config_files" $ARCH_LIST
6355 print_config HAVE_   "$config_files" $HAVE_LIST
6356 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6357                                      $CONFIG_EXTRA      \
6358                                      $ALL_COMPONENTS    \
6359
6360 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6361 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6362
6363 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6364 cp_if_changed $TMPH config.h
6365 touch .config
6366
6367 enabled yasm && cp_if_changed $TMPASM config.asm
6368
6369 cat > $TMPH <<EOF
6370 /* Generated by ffconf */
6371 #ifndef AVUTIL_AVCONFIG_H
6372 #define AVUTIL_AVCONFIG_H
6373 EOF
6374
6375 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6376
6377 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6378
6379 cp_if_changed $TMPH libavutil/avconfig.h
6380
6381 if test -n "$WARNINGS"; then
6382     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6383     enabled fatal_warnings && exit 1
6384 fi
6385
6386 # build pkg-config files
6387
6388 lib_version(){
6389     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6390 }
6391
6392 pkgconfig_generate(){
6393     name=$1
6394     shortname=${name#lib}${build_suffix}
6395     comment=$2
6396     version=$3
6397     libs=$4
6398     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6399     requires=${requires%, }
6400     enabled ${name#lib} || return 0
6401     mkdir -p $name
6402     cat <<EOF > $name/$name${build_suffix}.pc
6403 prefix=$prefix
6404 exec_prefix=\${prefix}
6405 libdir=$libdir
6406 includedir=$incdir
6407
6408 Name: $name
6409 Description: $comment
6410 Version: $version
6411 Requires: $(enabled shared || echo $requires)
6412 Requires.private: $(enabled shared && echo $requires)
6413 Conflicts:
6414 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6415 Libs.private: $(enabled shared && echo $libs)
6416 Cflags: -I\${includedir}
6417 EOF
6418
6419 mkdir -p doc/examples/pc-uninstalled
6420 includedir=${source_path}
6421 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6422     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6423 prefix=
6424 exec_prefix=
6425 libdir=\${pcfiledir}/../../../$name
6426 includedir=${includedir}
6427
6428 Name: $name
6429 Description: $comment
6430 Version: $version
6431 Requires: $requires
6432 Conflicts:
6433 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6434 Cflags: -I\${includedir}
6435 EOF
6436 }
6437
6438 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6439 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6440 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6441 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6442 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6443 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6444 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6445 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6446 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"