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-gnutls          enable gnutls, needed for https support
 203                            if openssl is not used [no]
 204   --disable-iconv          disable iconv [autodetect]
 205   --enable-ladspa          enable LADSPA audio filtering [no]
 206   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 207   --enable-libass          enable libass subtitles rendering,
 208                            needed for subtitles and ass filter [no]
 209   --enable-libbluray       enable BluRay reading using libbluray [no]
 210   --enable-libbs2b         enable bs2b DSP library [no]
 211   --enable-libcaca         enable textual display using libcaca [no]
 212   --enable-libcelt         enable CELT decoding via libcelt [no]
 213   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 214   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 215                            and libraw1394 [no]
 216   --enable-libdcadec       enable DCA decoding via libdcadec [no]
 217   --enable-libfaac         enable AAC encoding via libfaac [no]
 218   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 219   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 220   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 221   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 222   --enable-libgme          enable Game Music Emu via libgme [no]
 223   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 224   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 225   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 226   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 227   --enable-libmfx          enable HW acceleration through libmfx
 228   --enable-libmodplug      enable ModPlug via libmodplug [no]
 229   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 230   --enable-libnut          enable NUT (de)muxing via libnut,
 231                            native (de)muxer exists [no]
 232   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 233   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 234   --enable-libopencv       enable video filtering via libopencv [no]
 235   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 236   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 237   --enable-libopus         enable Opus de/encoding via libopus [no]
 238   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 239   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 240   --enable-libquvi         enable quvi input via libquvi [no]
 241   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 242   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 243   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 244   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 245   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 246   --enable-libsoxr         enable Include libsoxr resampling [no]
 247   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 248   --enable-libssh          enable SFTP protocol via libssh [no]
 249   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 250   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 251   --enable-libtheora       enable Theora encoding via libtheora [no]
 252   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 253   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 254   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 255   --enable-libvidstab      enable video stabilization using vid.stab [no]
 256   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 257   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 258   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 259                            native implementation exists [no]
 260   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 261   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 262   --enable-libwebp         enable WebP encoding via libwebp [no]
 263   --enable-libx264         enable H.264 encoding via x264 [no]
 264   --enable-libx265         enable HEVC encoding via x265 [no]
 265   --enable-libxavs         enable AVS encoding via xavs [no]
 266   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 267   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 268   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 269   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 270   --enable-libxvid         enable Xvid encoding via xvidcore,
 271                            native MPEG-4/Xvid encoder exists [no]
 272   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 273   --enable-libzmq          enable message passing via libzmq [no]
 274   --enable-libzvbi         enable teletext support via libzvbi [no]
 275   --disable-lzma           disable lzma [autodetect]
 276   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
 277   --enable-mmal            enable decoding via MMAL [no]
 278   --enable-nvenc           enable NVIDIA NVENC support [no]
 279   --enable-openal          enable OpenAL 1.1 capture support [no]
 280   --enable-opencl          enable OpenCL code
 281   --enable-opengl          enable OpenGL rendering [no]
 282   --enable-openssl         enable openssl, needed for https support
 283                            if gnutls is not used [no]
 284   --disable-schannel       disable SChannel SSP, needed for TLS support on
 285                            Windows if openssl and gnutls are not used [autodetect]
 286   --disable-sdl            disable sdl [autodetect]
 287   --disable-securetransport disable Secure Transport, needed for TLS support
 288                            on OSX if openssl and gnutls are not used [autodetect]
 289   --enable-x11grab         enable X11 grabbing (legacy) [no]
 290   --disable-xlib           disable xlib [autodetect]
 291   --disable-zlib           disable zlib [autodetect]
 292
 293 Toolchain options:
 294   --arch=ARCH              select architecture [$arch]
 295   --cpu=CPU                select the minimum required CPU (affects
 296                            instruction selection, may crash on older CPUs)
 297   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 298   --progs-suffix=SUFFIX    program name suffix []
 299   --enable-cross-compile   assume a cross-compiler is used
 300   --sysroot=PATH           root of cross-build tree
 301   --sysinclude=PATH        location of cross-build system headers
 302   --target-os=OS           compiler targets OS [$target_os]
 303   --target-exec=CMD        command to run executables on target
 304   --target-path=DIR        path to view of build directory on target
 305   --target-samples=DIR     path to samples directory on target
 306   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 307   --toolchain=NAME         set tool defaults according to NAME
 308   --nm=NM                  use nm tool NM [$nm_default]
 309   --ar=AR                  use archive tool AR [$ar_default]
 310   --as=AS                  use assembler AS [$as_default]
 311   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 312   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 313   --cc=CC                  use C compiler CC [$cc_default]
 314   --cxx=CXX                use C compiler CXX [$cxx_default]
 315   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 316   --ld=LD                  use linker LD [$ld_default]
 317   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 318   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 319   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 320   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 321   --host-cc=HOSTCC         use host C compiler HOSTCC
 322   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 323   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 324   --host-ld=HOSTLD         use host linker HOSTLD
 325   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 326   --host-libs=HLIBS        use libs HLIBS when linking for host
 327   --host-os=OS             compiler host OS [$target_os]
 328   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 329   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 330   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 331   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 332   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 333   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 334   --extra-version=STRING   version string suffix []
 335   --optflags=OPTFLAGS      override optimization-related compiler flags
 336   --build-suffix=SUFFIX    library name suffix []
 337   --enable-pic             build position-independent code
 338   --enable-thumb           compile for Thumb instruction set
 339   --enable-lto             use link-time optimization
 340   --env="ENV=override"     override the environment variables
 341
 342 Advanced options (experts only):
 343   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 344   --custom-allocator=NAME  use a supported custom allocator
 345   --disable-symver         disable symbol versioning
 346   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 347   --disable-safe-bitstream-reader
 348                            disable buffer boundary checking in bitreaders
 349                            (faster, but may crash)
 350   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 351   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 352
 353 Optimization options (experts only):
 354   --disable-asm            disable all assembly optimizations
 355   --disable-altivec        disable AltiVec optimizations
 356   --disable-vsx            disable VSX optimizations
 357   --disable-power8         disable POWER8 optimizations
 358   --disable-amd3dnow       disable 3DNow! optimizations
 359   --disable-amd3dnowext    disable 3DNow! extended optimizations
 360   --disable-mmx            disable MMX optimizations
 361   --disable-mmxext         disable MMXEXT optimizations
 362   --disable-sse            disable SSE optimizations
 363   --disable-sse2           disable SSE2 optimizations
 364   --disable-sse3           disable SSE3 optimizations
 365   --disable-ssse3          disable SSSE3 optimizations
 366   --disable-sse4           disable SSE4 optimizations
 367   --disable-sse42          disable SSE4.2 optimizations
 368   --disable-avx            disable AVX optimizations
 369   --disable-xop            disable XOP optimizations
 370   --disable-fma3           disable FMA3 optimizations
 371   --disable-fma4           disable FMA4 optimizations
 372   --disable-avx2           disable AVX2 optimizations
 373   --disable-aesni          disable AESNI optimizations
 374   --disable-armv5te        disable armv5te optimizations
 375   --disable-armv6          disable armv6 optimizations
 376   --disable-armv6t2        disable armv6t2 optimizations
 377   --disable-vfp            disable VFP optimizations
 378   --disable-neon           disable NEON optimizations
 379   --disable-inline-asm     disable use of inline assembly
 380   --disable-yasm           disable use of nasm/yasm assembly
 381   --disable-mips32r5       disable MIPS32R5 optimizations
 382   --disable-mips64r6       disable MIPS64R6 optimizations
 383   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 384   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 385   --disable-msa            disable MSA optimizations
 386   --disable-mipsfpu        disable floating point MIPS optimizations
 387   --disable-mmi            disable Loongson SIMD optimizations
 388   --disable-fast-unaligned consider unaligned accesses slow
 389
 390 Developer options (useful when working on FFmpeg itself):
 391   --disable-debug          disable debugging symbols
 392   --enable-debug=LEVEL     set the debug level [$debuglevel]
 393   --disable-optimizations  disable compiler optimizations
 394   --enable-extra-warnings  enable more compiler warnings
 395   --disable-stripping      disable stripping of executables and shared libraries
 396   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 397                            2 causes a slowdown at runtime.
 398   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 399   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 400                            leaks and errors, using the specified valgrind binary.
 401                            Cannot be combined with --target-exec
 402   --enable-ftrapv          Trap arithmetic overflows
 403   --samples=PATH           location of test samples for FATE, if not set use
 404                            \$FATE_SAMPLES at make invocation time.
 405   --enable-neon-clobber-test check NEON registers for clobbering (should be
 406                            used only for debugging purposes)
 407   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 408                            should be used only for debugging purposes)
 409   --enable-random          randomly enable/disable components
 410   --disable-random
 411   --enable-random=LIST     randomly enable/disable specific components or
 412   --disable-random=LIST    component groups. LIST is a comma-separated list
 413                            of NAME[:PROB] entries where NAME is a component
 414                            (group) and PROB the probability associated with
 415                            NAME (default 0.5).
 416   --random-seed=VALUE      seed value for --enable/disable-random
 417   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 418                            (only applies to --disable-optimizations builds)
 419
 420 NOTE: Object files are built at the place where configure is launched.
 421 EOF
 422   exit 0
 423 }
 424
 425 quotes='""'
 426 if test -t 1 && which tput >/dev/null 2>&1; then
 427     ncolors=$(tput colors)
 428     if test -n "$ncolors" && test $ncolors -ge 8; then
 429         bold_color=$(tput bold)
 430         warn_color=$(tput setaf 3)
 431         error_color=$(tput setaf 1)
 432         reset_color=$(tput sgr0)
 433     fi
 434     # 72 used instead of 80 since that's the default of pr
 435     ncols=$(tput cols)
 436 fi
 437 : ${ncols:=72}
 438
 439 log(){
 440     echo "$@" >> $logfile
 441 }
 442
 443 log_file(){
 444     log BEGIN $1
 445     pr -n -t $1 >> $logfile
 446     log END $1
 447 }
 448
 449 warn(){
 450     log "WARNING: $*"
 451     WARNINGS="${WARNINGS}WARNING: $*\n"
 452 }
 453
 454 die(){
 455     log "$@"
 456     echo "$error_color$bold_color$@$reset_color"
 457     cat <<EOF
 458
 459 If you think configure made a mistake, make sure you are using the latest
 460 version from Git.  If the latest version fails, report the problem to the
 461 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 462 EOF
 463     if disabled logging; then
 464         cat <<EOF
 465 Rerun configure with logging enabled (do not use --disable-logging), and
 466 include the log this produces with your report.
 467 EOF
 468     else
 469         cat <<EOF
 470 Include the log file "$logfile" produced by configure as this will help
 471 solve the problem.
 472 EOF
 473     fi
 474     exit 1
 475 }
 476
 477 # Avoid locale weirdness, besides we really just want to translate ASCII.
 478 toupper(){
 479     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 480 }
 481
 482 tolower(){
 483     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 484 }
 485
 486 c_escape(){
 487     echo "$*" | sed 's/["\\]/\\\0/g'
 488 }
 489
 490 sh_quote(){
 491     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 492     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 493     echo "$v"
 494 }
 495
 496 cleanws(){
 497     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 498 }
 499
 500 filter(){
 501     pat=$1
 502     shift
 503     for v; do
 504         eval "case $v in $pat) echo $v ;; esac"
 505     done
 506 }
 507
 508 filter_out(){
 509     pat=$1
 510     shift
 511     for v; do
 512         eval "case $v in $pat) ;; *) echo $v ;; esac"
 513     done
 514 }
 515
 516 map(){
 517     m=$1
 518     shift
 519     for v; do eval $m; done
 520 }
 521
 522 add_suffix(){
 523     suffix=$1
 524     shift
 525     for v; do echo ${v}${suffix}; done
 526 }
 527
 528 set_all(){
 529     value=$1
 530     shift
 531     for var in $*; do
 532         eval $var=$value
 533     done
 534 }
 535
 536 set_weak(){
 537     value=$1
 538     shift
 539     for var; do
 540         eval : \${$var:=$value}
 541     done
 542 }
 543
 544 sanitize_var_name(){
 545     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 546 }
 547
 548 set_safe(){
 549     var=$1
 550     shift
 551     eval $(sanitize_var_name "$var")='$*'
 552 }
 553
 554 get_safe(){
 555     eval echo \$$(sanitize_var_name "$1")
 556 }
 557
 558 pushvar(){
 559     for pvar in $*; do
 560         eval level=\${${pvar}_level:=0}
 561         eval ${pvar}_${level}="\$$pvar"
 562         eval ${pvar}_level=$(($level+1))
 563     done
 564 }
 565
 566 popvar(){
 567     for pvar in $*; do
 568         eval level=\${${pvar}_level:-0}
 569         test $level = 0 && continue
 570         eval level=$(($level-1))
 571         eval $pvar="\${${pvar}_${level}}"
 572         eval ${pvar}_level=$level
 573         eval unset ${pvar}_${level}
 574     done
 575 }
 576
 577 enable(){
 578     set_all yes $*
 579 }
 580
 581 disable(){
 582     set_all no $*
 583 }
 584
 585 enable_weak(){
 586     set_weak yes $*
 587 }
 588
 589 disable_weak(){
 590     set_weak no $*
 591 }
 592
 593 enable_safe(){
 594     for var; do
 595         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 596     done
 597 }
 598
 599 disable_safe(){
 600     for var; do
 601         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 602     done
 603 }
 604
 605 do_enable_deep(){
 606     for var; do
 607         enabled $var && continue
 608         eval sel="\$${var}_select"
 609         eval sgs="\$${var}_suggest"
 610         pushvar var sgs
 611         enable_deep $sel
 612         popvar sgs
 613         enable_deep_weak $sgs
 614         popvar var
 615     done
 616 }
 617
 618 enable_deep(){
 619     do_enable_deep $*
 620     enable $*
 621 }
 622
 623 enable_deep_weak(){
 624     for var; do
 625         disabled $var && continue
 626         pushvar var
 627         do_enable_deep $var
 628         popvar var
 629         enable_weak $var
 630     done
 631 }
 632
 633 enabled(){
 634     test "${1#!}" = "$1" && op='=' || op=!=
 635     eval test "x\$${1#!}" $op "xyes"
 636 }
 637
 638 disabled(){
 639     test "${1#!}" = "$1" && op='=' || op=!=
 640     eval test "x\$${1#!}" $op "xno"
 641 }
 642
 643 enabled_all(){
 644     for opt; do
 645         enabled $opt || return 1
 646     done
 647 }
 648
 649 disabled_all(){
 650     for opt; do
 651         disabled $opt || return 1
 652     done
 653 }
 654
 655 enabled_any(){
 656     for opt; do
 657         enabled $opt && return 0
 658     done
 659 }
 660
 661 disabled_any(){
 662     for opt; do
 663         disabled $opt && return 0
 664     done
 665     return 1
 666 }
 667
 668 set_default(){
 669     for opt; do
 670         eval : \${$opt:=\$${opt}_default}
 671     done
 672 }
 673
 674 is_in(){
 675     value=$1
 676     shift
 677     for var in $*; do
 678         [ $var = $value ] && return 0
 679     done
 680     return 1
 681 }
 682
 683 do_check_deps(){
 684     for cfg; do
 685         cfg="${cfg#!}"
 686         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 687         disabled ${cfg}_checking && continue
 688         enable ${cfg}_checking
 689         append allopts $cfg
 690
 691         eval dep_all="\$${cfg}_deps"
 692         eval dep_any="\$${cfg}_deps_any"
 693         eval dep_sel="\$${cfg}_select"
 694         eval dep_sgs="\$${cfg}_suggest"
 695         eval dep_ifa="\$${cfg}_if"
 696         eval dep_ifn="\$${cfg}_if_any"
 697
 698         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 699         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 700         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 701
 702         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 703         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 704         enabled_all  $dep_all || disable $cfg
 705         enabled_any  $dep_any || disable $cfg
 706         disabled_any $dep_sel && disable $cfg
 707
 708         if enabled $cfg; then
 709             enable_deep $dep_sel
 710             enable_deep_weak $dep_sgs
 711         fi
 712
 713         disable ${cfg}_checking
 714     done
 715 }
 716
 717 check_deps(){
 718     unset allopts
 719
 720     do_check_deps "$@"
 721
 722     for cfg in $allopts; do
 723         enabled $cfg || continue
 724         eval dep_extralibs="\$${cfg}_extralibs"
 725         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 726     done
 727 }
 728
 729 print_config(){
 730     pfx=$1
 731     files=$2
 732     shift 2
 733     map 'eval echo "$v \${$v:-no}"' "$@" |
 734     awk "BEGIN { split(\"$files\", files) }
 735         {
 736             c = \"$pfx\" toupper(\$1);
 737             v = \$2;
 738             sub(/yes/, 1, v);
 739             sub(/no/,  0, v);
 740             for (f in files) {
 741                 file = files[f];
 742                 if (file ~ /\\.h\$/) {
 743                     printf(\"#define %s %d\\n\", c, v) >>file;
 744                 } else if (file ~ /\\.asm\$/) {
 745                     printf(\"%%define %s %d\\n\", c, v) >>file;
 746                 } else if (file ~ /\\.mak\$/) {
 747                     n = -v ? \"\" : \"!\";
 748                     printf(\"%s%s=yes\\n\", n, c) >>file;
 749                 } else if (file ~ /\\.texi\$/) {
 750                     pre = -v ? \"\" : \"@c \";
 751                     yesno = \$2;
 752                     c2 = tolower(c);
 753                     gsub(/_/, \"-\", c2);
 754                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 755                 }
 756             }
 757         }"
 758 }
 759
 760 print_enabled(){
 761     suf=$1
 762     shift
 763     for v; do
 764         enabled $v && printf "%s\n" ${v%$suf};
 765     done
 766 }
 767
 768 append(){
 769     var=$1
 770     shift
 771     eval "$var=\"\$$var $*\""
 772 }
 773
 774 prepend(){
 775     var=$1
 776     shift
 777     eval "$var=\"$* \$$var\""
 778 }
 779
 780 unique(){
 781     var=$1
 782     uniq_list=""
 783     for tok in $(eval echo \$$var); do
 784         uniq_list="$(filter_out $tok $uniq_list) $tok"
 785     done
 786     eval "$var=\"${uniq_list}\""
 787 }
 788
 789 add_cppflags(){
 790     append CPPFLAGS "$@"
 791 }
 792
 793 add_cflags(){
 794     append CFLAGS $($cflags_filter "$@")
 795 }
 796
 797 add_cxxflags(){
 798     append CXXFLAGS $($cflags_filter "$@")
 799 }
 800
 801 add_asflags(){
 802     append ASFLAGS $($asflags_filter "$@")
 803 }
 804
 805 add_ldflags(){
 806     append LDFLAGS $($ldflags_filter "$@")
 807 }
 808
 809 add_ldexeflags(){
 810     append LDEXEFLAGS $($ldflags_filter "$@")
 811 }
 812
 813 add_ldlibflags(){
 814     append LDLIBFLAGS $($ldflags_filter "$@")
 815 }
 816
 817 add_stripflags(){
 818     append ASMSTRIPFLAGS "$@"
 819 }
 820
 821 add_extralibs(){
 822     prepend extralibs $($ldflags_filter "$@")
 823 }
 824
 825 add_host_cppflags(){
 826     append host_cppflags "$@"
 827 }
 828
 829 add_host_cflags(){
 830     append host_cflags $($host_cflags_filter "$@")
 831 }
 832
 833 add_host_ldflags(){
 834     append host_ldflags $($host_ldflags_filter "$@")
 835 }
 836
 837 add_compat(){
 838     append compat_objs $1
 839     shift
 840     map 'add_cppflags -D$v' "$@"
 841 }
 842
 843 check_cmd(){
 844     log "$@"
 845     "$@" >> $logfile 2>&1
 846 }
 847
 848 check_stat(){
 849     log check_stat "$@"
 850     stat "$1" >> $logfile 2>&1
 851 }
 852
 853 cc_o(){
 854     eval printf '%s\\n' $CC_O
 855 }
 856
 857 cc_e(){
 858     eval printf '%s\\n' $CC_E
 859 }
 860
 861 check_cc(){
 862     log check_cc "$@"
 863     cat > $TMPC
 864     log_file $TMPC
 865     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 866 }
 867
 868 check_cxx(){
 869     log check_cxx "$@"
 870     cat > $TMPCPP
 871     log_file $TMPCPP
 872     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 873 }
 874
 875 check_oc(){
 876     log check_oc "$@"
 877     cat > $TMPM
 878     log_file $TMPM
 879     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 880 }
 881
 882 check_cpp(){
 883     log check_cpp "$@"
 884     cat > $TMPC
 885     log_file $TMPC
 886     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 887 }
 888
 889 as_o(){
 890     eval printf '%s\\n' $AS_O
 891 }
 892
 893 check_as(){
 894     log check_as "$@"
 895     cat > $TMPS
 896     log_file $TMPS
 897     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 898 }
 899
 900 check_inline_asm(){
 901     log check_inline_asm "$@"
 902     name="$1"
 903     code="$2"
 904     shift 2
 905     disable $name
 906     check_cc "$@" <<EOF && enable $name
 907 void foo(void){ __asm__ volatile($code); }
 908 EOF
 909 }
 910
 911 check_insn(){
 912     log check_insn "$@"
 913     check_inline_asm ${1}_inline "\"$2\""
 914     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 915 }
 916
 917 check_yasm(){
 918     log check_yasm "$@"
 919     echo "$1" > $TMPS
 920     log_file $TMPS
 921     shift 1
 922     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 923 }
 924
 925 ld_o(){
 926     eval printf '%s\\n' $LD_O
 927 }
 928
 929 check_ld(){
 930     log check_ld "$@"
 931     type=$1
 932     shift 1
 933     flags=$(filter_out '-l*|*.so' $@)
 934     libs=$(filter '-l*|*.so' $@)
 935     check_$type $($cflags_filter $flags) || return
 936     flags=$($ldflags_filter $flags)
 937     libs=$($ldflags_filter $libs)
 938     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 939 }
 940
 941 print_include(){
 942     hdr=$1
 943     test "${hdr%.h}" = "${hdr}" &&
 944         echo "#include $hdr"    ||
 945         echo "#include <$hdr>"
 946 }
 947
 948 check_code(){
 949     log check_code "$@"
 950     check=$1
 951     headers=$2
 952     code=$3
 953     shift 3
 954     {
 955         for hdr in $headers; do
 956             print_include $hdr
 957         done
 958         echo "int main(void) { $code; return 0; }"
 959     } | check_$check "$@"
 960 }
 961
 962 check_cppflags(){
 963     log check_cppflags "$@"
 964     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 965 int x;
 966 EOF
 967 }
 968
 969 test_cflags(){
 970     log test_cflags "$@"
 971     set -- $($cflags_filter "$@")
 972     check_cc "$@" <<EOF
 973 int x;
 974 EOF
 975 }
 976
 977 check_cflags(){
 978     log check_cflags "$@"
 979     test_cflags "$@" && add_cflags "$@"
 980 }
 981
 982 check_cxxflags(){
 983     log check_cxxflags "$@"
 984     set -- $($cflags_filter "$@")
 985     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 986 int x;
 987 EOF
 988 }
 989
 990 test_ldflags(){
 991     log test_ldflags "$@"
 992     check_ld "cc" "$@" <<EOF
 993 int main(void){ return 0; }
 994 EOF
 995 }
 996
 997 check_ldflags(){
 998     log check_ldflags "$@"
 999     test_ldflags "$@" && add_ldflags "$@"
1000 }
1001
1002 test_stripflags(){
1003     log test_stripflags "$@"
1004     # call check_cc to get a fresh TMPO
1005     check_cc <<EOF
1006 int main(void) { return 0; }
1007 EOF
1008     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1009 }
1010
1011 check_stripflags(){
1012     log check_stripflags "$@"
1013     test_stripflags "$@" && add_stripflags "$@"
1014 }
1015
1016 check_header(){
1017     log check_header "$@"
1018     header=$1
1019     shift
1020     disable_safe $header
1021     check_cpp "$@" <<EOF && enable_safe $header
1022 #include <$header>
1023 int x;
1024 EOF
1025 }
1026
1027 check_header_oc(){
1028     log check_header_oc "$@"
1029     rm -f -- "$TMPO"
1030     header=$1
1031     shift
1032     disable_safe $header
1033     {
1034        echo "#include <$header>"
1035        echo "int main(void) { return 0; }"
1036     } | check_oc && check_stat "$TMPO" && enable_safe $headers
1037 }
1038
1039 check_func(){
1040     log check_func "$@"
1041     func=$1
1042     shift
1043     disable $func
1044     check_ld "cc" "$@" <<EOF && enable $func
1045 extern int $func();
1046 int main(void){ $func(); }
1047 EOF
1048 }
1049
1050 check_mathfunc(){
1051     log check_mathfunc "$@"
1052     func=$1
1053     narg=$2
1054     shift 2
1055     test $narg = 2 && args="f, g" || args="f"
1056     disable $func
1057     check_ld "cc" "$@" <<EOF && enable $func
1058 #include <math.h>
1059 float foo(float f, float g) { return $func($args); }
1060 int main(void){ return (int) foo; }
1061 EOF
1062 }
1063
1064 check_func_headers(){
1065     log check_func_headers "$@"
1066     headers=$1
1067     funcs=$2
1068     shift 2
1069     {
1070         for hdr in $headers; do
1071             print_include $hdr
1072         done
1073         for func in $funcs; do
1074             echo "long check_$func(void) { return (long) $func; }"
1075         done
1076         echo "int main(void) { return 0; }"
1077     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1078 }
1079
1080 check_class_headers_cpp(){
1081     log check_class_headers_cpp "$@"
1082     headers=$1
1083     classes=$2
1084     shift 2
1085     {
1086         for hdr in $headers; do
1087             echo "#include <$hdr>"
1088         done
1089         echo "int main(void) { "
1090         i=1
1091         for class in $classes; do
1092             echo "$class obj$i;"
1093             i=$(expr $i + 1)
1094         done
1095         echo "return 0; }"
1096     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1097 }
1098
1099 check_cpp_condition(){
1100     log check_cpp_condition "$@"
1101     header=$1
1102     condition=$2
1103     shift 2
1104     check_cpp "$@" <<EOF
1105 #include <$header>
1106 #if !($condition)
1107 #error "unsatisfied condition: $condition"
1108 #endif
1109 EOF
1110 }
1111
1112 check_lib(){
1113     log check_lib "$@"
1114     header="$1"
1115     func="$2"
1116     shift 2
1117     check_header $header && check_func $func "$@" && add_extralibs "$@"
1118 }
1119
1120 check_lib2(){
1121     log check_lib2 "$@"
1122     headers="$1"
1123     funcs="$2"
1124     shift 2
1125     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1126 }
1127
1128 check_lib_cpp(){
1129     log check_lib_cpp "$@"
1130     headers="$1"
1131     classes="$2"
1132     shift 2
1133     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1134 }
1135
1136 check_pkg_config(){
1137     log check_pkg_config "$@"
1138     pkgandversion="$1"
1139     pkg="${1%% *}"
1140     headers="$2"
1141     funcs="$3"
1142     shift 3
1143     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1144     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1145     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1146     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1147         set_safe "${pkg}_cflags" $pkg_cflags   &&
1148         set_safe "${pkg}_libs"   $pkg_libs
1149 }
1150
1151 check_exec(){
1152     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1153 }
1154
1155 check_exec_crash(){
1156     code=$(cat)
1157
1158     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1159     # are safe but may not be available everywhere.  Thus we use
1160     # raise(SIGTERM) instead.  The check is run in a subshell so we
1161     # can redirect the "Terminated" message from the shell.  SIGBUS
1162     # is not defined by standard C so it is used conditionally.
1163
1164     (check_exec "$@") >> $logfile 2>&1 <<EOF
1165 #include <signal.h>
1166 static void sighandler(int sig){
1167     raise(SIGTERM);
1168 }
1169 int foo(void){
1170     $code
1171 }
1172 int (*func_ptr)(void) = foo;
1173 int main(void){
1174     signal(SIGILL, sighandler);
1175     signal(SIGFPE, sighandler);
1176     signal(SIGSEGV, sighandler);
1177 #ifdef SIGBUS
1178     signal(SIGBUS, sighandler);
1179 #endif
1180     return func_ptr();
1181 }
1182 EOF
1183 }
1184
1185 check_type(){
1186     log check_type "$@"
1187     headers=$1
1188     type=$2
1189     shift 2
1190     disable_safe "$type"
1191     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1192 }
1193
1194 check_struct(){
1195     log check_struct "$@"
1196     headers=$1
1197     struct=$2
1198     member=$3
1199     shift 3
1200     disable_safe "${struct}_${member}"
1201     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1202         enable_safe "${struct}_${member}"
1203 }
1204
1205 check_builtin(){
1206     log check_builtin "$@"
1207     name=$1
1208     headers=$2
1209     builtin=$3
1210     shift 3
1211     disable "$name"
1212     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1213 }
1214
1215 check_compile_assert(){
1216     log check_compile_assert "$@"
1217     name=$1
1218     headers=$2
1219     condition=$3
1220     shift 3
1221     disable "$name"
1222     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1223 }
1224
1225 require(){
1226     name="$1"
1227     header="$2"
1228     func="$3"
1229     shift 3
1230     check_lib $header $func "$@" || die "ERROR: $name not found"
1231 }
1232
1233 require2(){
1234     name="$1"
1235     headers="$2"
1236     func="$3"
1237     shift 3
1238     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1239 }
1240
1241 require_cpp(){
1242     name="$1"
1243     headers="$2"
1244     classes="$3"
1245     shift 3
1246     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1247 }
1248
1249 use_pkg_config(){
1250     pkg="$1"
1251     check_pkg_config "$@" || return 1
1252     add_cflags    $(get_safe "${pkg}_cflags")
1253     add_extralibs $(get_safe "${pkg}_libs")
1254 }
1255
1256 require_pkg_config(){
1257     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1258 }
1259
1260 require_libfreetype(){
1261     log require_libfreetype "$@"
1262     pkg="freetype2"
1263     check_cmd $pkg_config --exists --print-errors $pkg \
1264       || die "ERROR: $pkg not found"
1265     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1266     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1267     {
1268         echo "#include <ft2build.h>"
1269         echo "#include FT_FREETYPE_H"
1270         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1271         echo "int main(void) { return 0; }"
1272     } | check_ld "cc" $pkg_cflags $pkg_libs \
1273       && set_safe "${pkg}_cflags" $pkg_cflags \
1274       && set_safe "${pkg}_libs"   $pkg_libs \
1275       || die "ERROR: $pkg not found"
1276     add_cflags    $(get_safe "${pkg}_cflags")
1277     add_extralibs $(get_safe "${pkg}_libs")
1278 }
1279
1280 hostcc_e(){
1281     eval printf '%s\\n' $HOSTCC_E
1282 }
1283
1284 hostcc_o(){
1285     eval printf '%s\\n' $HOSTCC_O
1286 }
1287
1288 check_host_cc(){
1289     log check_host_cc "$@"
1290     cat > $TMPC
1291     log_file $TMPC
1292     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1293 }
1294
1295 check_host_cpp(){
1296     log check_host_cpp "$@"
1297     cat > $TMPC
1298     log_file $TMPC
1299     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1300 }
1301
1302 check_host_cppflags(){
1303     log check_host_cppflags "$@"
1304     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1305 int x;
1306 EOF
1307 }
1308
1309 check_host_cflags(){
1310     log check_host_cflags "$@"
1311     set -- $($host_cflags_filter "$@")
1312     check_host_cc "$@" <<EOF && append host_cflags "$@"
1313 int x;
1314 EOF
1315 }
1316
1317 check_host_cpp_condition(){
1318     log check_host_cpp_condition "$@"
1319     header=$1
1320     condition=$2
1321     shift 2
1322     check_host_cpp "$@" <<EOF
1323 #include <$header>
1324 #if !($condition)
1325 #error "unsatisfied condition: $condition"
1326 #endif
1327 EOF
1328 }
1329
1330 cp_if_changed(){
1331     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1332     mkdir -p "$(dirname $2)"
1333     $cp_f "$1" "$2"
1334 }
1335
1336 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1337 # system-dependent things.
1338
1339 AVCODEC_COMPONENTS="
1340     bsfs
1341     decoders
1342     encoders
1343     hwaccels
1344     parsers
1345 "
1346
1347 AVDEVICE_COMPONENTS="
1348     indevs
1349     outdevs
1350 "
1351 AVFILTER_COMPONENTS="
1352     filters
1353 "
1354 AVFORMAT_COMPONENTS="
1355     demuxers
1356     muxers
1357     protocols
1358 "
1359
1360 AVRESAMPLE_COMPONENTS=""
1361 AVUTIL_COMPONENTS=""
1362
1363 COMPONENT_LIST="
1364     $AVCODEC_COMPONENTS
1365     $AVDEVICE_COMPONENTS
1366     $AVFILTER_COMPONENTS
1367     $AVFORMAT_COMPONENTS
1368     $AVRESAMPLE_COMPONENTS
1369     $AVUTIL_COMPONENTS
1370 "
1371
1372 EXAMPLE_LIST="
1373     avio_reading_example
1374     avio_dir_cmd_example
1375     decoding_encoding_example
1376     demuxing_decoding_example
1377     extract_mvs_example
1378     filter_audio_example
1379     filtering_audio_example
1380     filtering_video_example
1381     metadata_example
1382     muxing_example
1383     qsvdec_example
1384     remuxing_example
1385     resampling_audio_example
1386     scaling_video_example
1387     transcode_aac_example
1388     transcoding_example
1389 "
1390
1391 EXTERNAL_LIBRARY_LIST="
1392     avisynth
1393     bzlib
1394     chromaprint
1395     crystalhd
1396     decklink
1397     frei0r
1398     gnutls
1399     iconv
1400     ladspa
1401     libaacplus
1402     libass
1403     libbluray
1404     libbs2b
1405     libcaca
1406     libcdio
1407     libcelt
1408     libdc1394
1409     libdcadec
1410     libfaac
1411     libfdk_aac
1412     libflite
1413     libfontconfig
1414     libfreetype
1415     libfribidi
1416     libgme
1417     libgsm
1418     libiec61883
1419     libilbc
1420     libkvazaar
1421     libmfx
1422     libmodplug
1423     libmp3lame
1424     libnut
1425     libopencore_amrnb
1426     libopencore_amrwb
1427     libopencv
1428     libopenh264
1429     libopenjpeg
1430     libopus
1431     libpulse
1432     libquvi
1433     librtmp
1434     librubberband
1435     libschroedinger
1436     libshine
1437     libsmbclient
1438     libsnappy
1439     libsoxr
1440     libspeex
1441     libssh
1442     libstagefright_h264
1443     libtesseract
1444     libtheora
1445     libtwolame
1446     libutvideo
1447     libv4l2
1448     libvidstab
1449     libvo_aacenc
1450     libvo_amrwbenc
1451     libvorbis
1452     libvpx
1453     libwavpack
1454     libwebp
1455     libx264
1456     libx265
1457     libxavs
1458     libxcb
1459     libxcb_shm
1460     libxcb_shape
1461     libxcb_xfixes
1462     libxvid
1463     libzimg
1464     libzmq
1465     libzvbi
1466     lzma
1467     mmal
1468     nvenc
1469     openal
1470     opencl
1471     opengl
1472     openssl
1473     schannel
1474     sdl
1475     securetransport
1476     x11grab
1477     xlib
1478     zlib
1479 "
1480
1481 DOCUMENT_LIST="
1482     doc
1483     htmlpages
1484     manpages
1485     podpages
1486     txtpages
1487 "
1488
1489 FEATURE_LIST="
1490     ftrapv
1491     gray
1492     hardcoded_tables
1493     runtime_cpudetect
1494     safe_bitstream_reader
1495     shared
1496     small
1497     static
1498     swscale_alpha
1499 "
1500
1501 HWACCEL_LIST="
1502     d3d11va
1503     dxva2
1504     vaapi
1505     vda
1506     vdpau
1507     videotoolbox
1508     xvmc
1509 "
1510
1511 LIBRARY_LIST="
1512     avcodec
1513     avdevice
1514     avfilter
1515     avformat
1516     avresample
1517     avutil
1518     postproc
1519     swresample
1520     swscale
1521 "
1522
1523 LICENSE_LIST="
1524     gpl
1525     nonfree
1526     version3
1527 "
1528
1529 PROGRAM_LIST="
1530     ffplay
1531     ffprobe
1532     ffserver
1533     ffmpeg
1534 "
1535
1536 SUBSYSTEM_LIST="
1537     dct
1538     dwt
1539     error_resilience
1540     faan
1541     fast_unaligned
1542     fft
1543     lsp
1544     lzo
1545     mdct
1546     pixelutils
1547     network
1548     rdft
1549 "
1550
1551 CONFIG_LIST="
1552     $COMPONENT_LIST
1553     $DOCUMENT_LIST
1554     $EXAMPLE_LIST
1555     $EXTERNAL_LIBRARY_LIST
1556     $FEATURE_LIST
1557     $HWACCEL_LIST
1558     $LICENSE_LIST
1559     $LIBRARY_LIST
1560     $PROGRAM_LIST
1561     $SUBSYSTEM_LIST
1562     fontconfig
1563     incompatible_libav_abi
1564     memalign_hack
1565     memory_poisoning
1566     neon_clobber_test
1567     pic
1568     pod2man
1569     raise_major
1570     thumb
1571     valgrind_backtrace
1572     xmm_clobber_test
1573 "
1574
1575 THREADS_LIST="
1576     pthreads
1577     os2threads
1578     w32threads
1579 "
1580
1581 ATOMICS_LIST="
1582     atomics_gcc
1583     atomics_suncc
1584     atomics_win32
1585 "
1586
1587 ARCH_LIST="
1588     aarch64
1589     alpha
1590     arm
1591     avr32
1592     avr32_ap
1593     avr32_uc
1594     bfin
1595     ia64
1596     m68k
1597     mips
1598     mips64
1599     parisc
1600     ppc
1601     ppc64
1602     s390
1603     sh4
1604     sparc
1605     sparc64
1606     tilegx
1607     tilepro
1608     tomi
1609     x86
1610     x86_32
1611     x86_64
1612 "
1613
1614 ARCH_EXT_LIST_ARM="
1615     armv5te
1616     armv6
1617     armv6t2
1618     armv8
1619     neon
1620     vfp
1621     vfpv3
1622     setend
1623 "
1624
1625 ARCH_EXT_LIST_MIPS="
1626     mipsfpu
1627     mips32r2
1628     mips32r5
1629     mips64r6
1630     mipsdspr1
1631     mipsdspr2
1632     msa
1633 "
1634
1635 ARCH_EXT_LIST_LOONGSON="
1636     loongson2
1637     loongson3
1638     mmi
1639 "
1640
1641 ARCH_EXT_LIST_X86_SIMD="
1642     aesni
1643     amd3dnow
1644     amd3dnowext
1645     avx
1646     avx2
1647     fma3
1648     fma4
1649     mmx
1650     mmxext
1651     sse
1652     sse2
1653     sse3
1654     sse4
1655     sse42
1656     ssse3
1657     xop
1658 "
1659
1660 ARCH_EXT_LIST_PPC="
1661     altivec
1662     dcbzl
1663     ldbrx
1664     power8
1665     ppc4xx
1666     vsx
1667 "
1668
1669 ARCH_EXT_LIST_X86="
1670     $ARCH_EXT_LIST_X86_SIMD
1671     cpunop
1672     i686
1673 "
1674
1675 ARCH_EXT_LIST="
1676     $ARCH_EXT_LIST_ARM
1677     $ARCH_EXT_LIST_PPC
1678     $ARCH_EXT_LIST_X86
1679     $ARCH_EXT_LIST_MIPS
1680     $ARCH_EXT_LIST_LOONGSON
1681 "
1682
1683 ARCH_FEATURES="
1684     aligned_stack
1685     fast_64bit
1686     fast_clz
1687     fast_cmov
1688     local_aligned_8
1689     local_aligned_16
1690     local_aligned_32
1691     simd_align_16
1692 "
1693
1694 BUILTIN_LIST="
1695     atomic_cas_ptr
1696     atomic_compare_exchange
1697     machine_rw_barrier
1698     MemoryBarrier
1699     mm_empty
1700     rdtsc
1701     sarestart
1702     sync_val_compare_and_swap
1703 "
1704 HAVE_LIST_CMDLINE="
1705     inline_asm
1706     symver
1707     yasm
1708 "
1709
1710 HAVE_LIST_PUB="
1711     bigendian
1712     fast_unaligned
1713     incompatible_libav_abi
1714 "
1715
1716 HEADERS_LIST="
1717     alsa_asoundlib_h
1718     altivec_h
1719     arpa_inet_h
1720     asm_types_h
1721     cdio_paranoia_h
1722     cdio_paranoia_paranoia_h
1723     dev_bktr_ioctl_bt848_h
1724     dev_bktr_ioctl_meteor_h
1725     dev_ic_bt8xx_h
1726     dev_video_bktr_ioctl_bt848_h
1727     dev_video_meteor_ioctl_meteor_h
1728     direct_h
1729     dirent_h
1730     dlfcn_h
1731     d3d11_h
1732     dxva_h
1733     ES2_gl_h
1734     gsm_h
1735     io_h
1736     mach_mach_time_h
1737     machine_ioctl_bt848_h
1738     machine_ioctl_meteor_h
1739     malloc_h
1740     openjpeg_1_5_openjpeg_h
1741     OpenGL_gl3_h
1742     poll_h
1743     sndio_h
1744     soundcard_h
1745     sys_mman_h
1746     sys_param_h
1747     sys_resource_h
1748     sys_select_h
1749     sys_soundcard_h
1750     sys_time_h
1751     sys_un_h
1752     sys_videoio_h
1753     termios_h
1754     udplite_h
1755     unistd_h
1756     valgrind_valgrind_h
1757     windows_h
1758     winsock2_h
1759 "
1760
1761 INTRINSICS_LIST="
1762     intrinsics_neon
1763 "
1764
1765 MATH_FUNCS="
1766     atanf
1767     atan2f
1768     cbrt
1769     cbrtf
1770     copysign
1771     cosf
1772     erf
1773     exp2
1774     exp2f
1775     expf
1776     isinf
1777     isnan
1778     ldexpf
1779     llrint
1780     llrintf
1781     log2
1782     log2f
1783     log10f
1784     lrint
1785     lrintf
1786     powf
1787     rint
1788     round
1789     roundf
1790     sinf
1791     trunc
1792     truncf
1793 "
1794
1795 SYSTEM_FUNCS="
1796     access
1797     aligned_malloc
1798     clock_gettime
1799     closesocket
1800     CommandLineToArgvW
1801     CoTaskMemFree
1802     CryptGenRandom
1803     dlopen
1804     fcntl
1805     flt_lim
1806     fork
1807     getaddrinfo
1808     gethrtime
1809     getopt
1810     GetProcessAffinityMask
1811     GetProcessMemoryInfo
1812     GetProcessTimes
1813     getrusage
1814     GetSystemTimeAsFileTime
1815     gettimeofday
1816     glob
1817     glXGetProcAddress
1818     gmtime_r
1819     inet_aton
1820     isatty
1821     jack_port_get_latency_range
1822     kbhit
1823     localtime_r
1824     lstat
1825     lzo1x_999_compress
1826     mach_absolute_time
1827     MapViewOfFile
1828     memalign
1829     mkstemp
1830     mmap
1831     mprotect
1832     nanosleep
1833     PeekNamedPipe
1834     posix_memalign
1835     pthread_cancel
1836     sched_getaffinity
1837     SetConsoleTextAttribute
1838     SetConsoleCtrlHandler
1839     setmode
1840     setrlimit
1841     Sleep
1842     strerror_r
1843     sysconf
1844     sysctl
1845     usleep
1846     UTGetOSTypeFromString
1847     VirtualAlloc
1848     wglGetProcAddress
1849 "
1850
1851 TOOLCHAIN_FEATURES="
1852     as_dn_directive
1853     as_func
1854     as_object_arch
1855     asm_mod_q
1856     attribute_may_alias
1857     attribute_packed
1858     ebp_available
1859     ebx_available
1860     gnu_as
1861     gnu_windres
1862     ibm_asm
1863     inline_asm_labels
1864     inline_asm_nonlocal_labels
1865     inline_asm_direct_symbol_refs
1866     pragma_deprecated
1867     rsync_contimeout
1868     symver_asm_label
1869     symver_gnu_asm
1870     vfp_args
1871     xform_asm
1872     xmm_clobbers
1873 "
1874
1875 TYPES_LIST="
1876     CONDITION_VARIABLE_Ptr
1877     socklen_t
1878     struct_addrinfo
1879     struct_dcadec_exss_info_matrix_encoding
1880     struct_group_source_req
1881     struct_ip_mreq_source
1882     struct_ipv6_mreq
1883     struct_pollfd
1884     struct_rusage_ru_maxrss
1885     struct_sctp_event_subscribe
1886     struct_sockaddr_in6
1887     struct_sockaddr_sa_len
1888     struct_sockaddr_storage
1889     struct_stat_st_mtim_tv_nsec
1890     struct_v4l2_frmivalenum_discrete
1891 "
1892
1893 HAVE_LIST="
1894     $ARCH_EXT_LIST
1895     $(add_suffix _external $ARCH_EXT_LIST)
1896     $(add_suffix _inline   $ARCH_EXT_LIST)
1897     $ARCH_FEATURES
1898     $ATOMICS_LIST
1899     $BUILTIN_LIST
1900     $HAVE_LIST_CMDLINE
1901     $HAVE_LIST_PUB
1902     $HEADERS_LIST
1903     $INTRINSICS_LIST
1904     $MATH_FUNCS
1905     $SYSTEM_FUNCS
1906     $THREADS_LIST
1907     $TOOLCHAIN_FEATURES
1908     $TYPES_LIST
1909     atomics_native
1910     dos_paths
1911     dxva2api_cobj
1912     dxva2_lib
1913     winrt
1914     libc_msvcrt
1915     libdc1394_1
1916     libdc1394_2
1917     makeinfo
1918     makeinfo_html
1919     perl
1920     pod2man
1921     sdl
1922     section_data_rel_ro
1923     texi2html
1924     threads
1925     vaapi_x11
1926     vdpau_x11
1927     xlib
1928 "
1929
1930 # options emitted with CONFIG_ prefix but not available on the command line
1931 CONFIG_EXTRA="
1932     aandcttables
1933     ac3dsp
1934     audio_frame_queue
1935     audiodsp
1936     blockdsp
1937     bswapdsp
1938     cabac
1939     dvprofile
1940     exif
1941     faandct
1942     faanidct
1943     fdctdsp
1944     flacdsp
1945     fmtconvert
1946     frame_thread_encoder
1947     g722dsp
1948     gcrypt
1949     gmp
1950     golomb
1951     gplv3
1952     h263dsp
1953     h264chroma
1954     h264dsp
1955     h264pred
1956     h264qpel
1957     hpeldsp
1958     huffman
1959     huffyuvdsp
1960     huffyuvencdsp
1961     idctdsp
1962     iirfilter
1963     imdct15
1964     intrax8
1965     ividsp
1966     jpegtables
1967     libx262
1968     lgplv3
1969     llauddsp
1970     llviddsp
1971     lpc
1972     lzf
1973     me_cmp
1974     mpeg_er
1975     mpegaudio
1976     mpegaudiodsp
1977     mpegvideo
1978     mpegvideoenc
1979     mss34dsp
1980     pixblockdsp
1981     qpeldsp
1982     qsv
1983     qsvdec
1984     qsvenc
1985     rangecoder
1986     riffdec
1987     riffenc
1988     rtpdec
1989     rtpenc_chain
1990     rv34dsp
1991     sinewin
1992     snappy
1993     startcode
1994     texturedsp
1995     texturedspenc
1996     tpeldsp
1997     videodsp
1998     vp3dsp
1999     vp56dsp
2000     vp8dsp
2001     wma_freqs
2002     wmv2dsp
2003 "
2004
2005 CMDLINE_SELECT="
2006     $ARCH_EXT_LIST
2007     $CONFIG_LIST
2008     $HAVE_LIST_CMDLINE
2009     $THREADS_LIST
2010     asm
2011     cross_compile
2012     debug
2013     extra_warnings
2014     logging
2015     lto
2016     optimizations
2017     rpath
2018     stripping
2019 "
2020
2021 PATHS_LIST="
2022     bindir
2023     datadir
2024     docdir
2025     incdir
2026     libdir
2027     mandir
2028     pkgconfigdir
2029     prefix
2030     shlibdir
2031 "
2032
2033 CMDLINE_SET="
2034     $PATHS_LIST
2035     ar
2036     arch
2037     as
2038     assert_level
2039     build_suffix
2040     cc
2041     cpu
2042     cross_prefix
2043     custom_allocator
2044     cxx
2045     dep_cc
2046     doxygen
2047     env
2048     extra_version
2049     gas
2050     host_cc
2051     host_cflags
2052     host_ld
2053     host_ldflags
2054     host_libs
2055     host_os
2056     install
2057     ld
2058     logfile
2059     malloc_prefix
2060     nm
2061     optflags
2062     pkg_config
2063     pkg_config_flags
2064     progs_suffix
2065     random_seed
2066     ranlib
2067     samples
2068     strip
2069     sws_max_filter_size
2070     sysinclude
2071     sysroot
2072     target_exec
2073     target_os
2074     target_path
2075     target_samples
2076     tempprefix
2077     toolchain
2078     valgrind
2079     yasmexe
2080 "
2081
2082 CMDLINE_APPEND="
2083     extra_cflags
2084     extra_cxxflags
2085     host_cppflags
2086 "
2087
2088 # code dependency declarations
2089
2090 # architecture extensions
2091
2092 armv5te_deps="arm"
2093 armv6_deps="arm"
2094 armv6t2_deps="arm"
2095 armv8_deps="aarch64"
2096 neon_deps_any="aarch64 arm"
2097 intrinsics_neon_deps="neon"
2098 vfp_deps_any="aarch64 arm"
2099 vfpv3_deps="vfp"
2100 setend_deps="arm"
2101
2102 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2103
2104 mipsfpu_deps="mips"
2105 mipsdspr1_deps="mips"
2106 mipsdspr2_deps="mips"
2107 mips32r2_deps="mips"
2108 mips32r5_deps="mips"
2109 mips64r6_deps="mips"
2110 msa_deps="mips"
2111 mmi_deps="mips"
2112
2113 altivec_deps="ppc"
2114 dcbzl_deps="ppc"
2115 ldbrx_deps="ppc"
2116 ppc4xx_deps="ppc"
2117 vsx_deps="altivec"
2118 power8_deps="vsx"
2119
2120 cpunop_deps="i686"
2121 x86_64_select="i686"
2122 x86_64_suggest="fast_cmov"
2123
2124 amd3dnow_deps="mmx"
2125 amd3dnowext_deps="amd3dnow"
2126 i686_deps="x86"
2127 mmx_deps="x86"
2128 mmxext_deps="mmx"
2129 sse_deps="mmxext"
2130 sse2_deps="sse"
2131 sse3_deps="sse2"
2132 ssse3_deps="sse3"
2133 sse4_deps="ssse3"
2134 sse42_deps="sse4"
2135 aesni_deps="sse42"
2136 avx_deps="sse42"
2137 xop_deps="avx"
2138 fma3_deps="avx"
2139 fma4_deps="avx"
2140 avx2_deps="avx"
2141
2142 mmx_external_deps="yasm"
2143 mmx_inline_deps="inline_asm"
2144 mmx_suggest="mmx_external mmx_inline"
2145
2146 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2147     eval dep=\$${ext}_deps
2148     eval ${ext}_external_deps='"${dep}_external"'
2149     eval ${ext}_inline_deps='"${dep}_inline"'
2150     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2151 done
2152
2153 aligned_stack_if_any="aarch64 ppc x86"
2154 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2155 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2156 fast_unaligned_if_any="aarch64 ppc x86"
2157 simd_align_16_if_any="altivec neon sse"
2158
2159 # system capabilities
2160 symver_if_any="symver_asm_label symver_gnu_asm"
2161 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2162
2163 # threading support
2164 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2165 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2166 atomics_win32_if="MemoryBarrier"
2167 atomics_native_if_any="$ATOMICS_LIST"
2168 w32threads_deps="atomics_native"
2169 threads_if_any="$THREADS_LIST"
2170
2171 # subsystems
2172 dct_select="rdft"
2173 error_resilience_select="me_cmp"
2174 faandct_deps="faan fdctdsp"
2175 faanidct_deps="faan idctdsp"
2176 frame_thread_encoder_deps="encoders threads"
2177 intrax8_select="error_resilience"
2178 mdct_select="fft"
2179 rdft_select="fft"
2180 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2181 mpeg_er_select="error_resilience"
2182 mpegaudio_select="mpegaudiodsp"
2183 mpegaudiodsp_select="dct"
2184 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2185 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2186 qsvdec_select="qsv"
2187 qsvenc_select="qsv"
2188
2189 # decoders / encoders
2190 aac_decoder_select="imdct15 mdct sinewin"
2191 aac_fixed_decoder_select="mdct sinewin"
2192 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2193 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2194 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2195 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2196 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2197 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2198 adpcm_g722_decoder_select="g722dsp"
2199 adpcm_g722_encoder_select="g722dsp"
2200 aic_decoder_select="golomb idctdsp"
2201 alac_encoder_select="lpc"
2202 als_decoder_select="bswapdsp"
2203 amrnb_decoder_select="lsp"
2204 amrwb_decoder_select="lsp"
2205 amv_decoder_select="sp5x_decoder exif"
2206 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2207 ape_decoder_select="bswapdsp llauddsp"
2208 apng_decoder_select="zlib"
2209 apng_encoder_select="huffyuvencdsp zlib"
2210 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2211 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2212 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2213 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2214 atrac1_decoder_select="mdct sinewin"
2215 atrac3_decoder_select="mdct"
2216 atrac3p_decoder_select="mdct sinewin"
2217 avrn_decoder_select="exif jpegtables"
2218 bink_decoder_select="blockdsp hpeldsp"
2219 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2220 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2221 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2222 cllc_decoder_select="bswapdsp"
2223 comfortnoise_encoder_select="lpc"
2224 cook_decoder_select="audiodsp mdct sinewin"
2225 cscd_decoder_select="lzo"
2226 cscd_decoder_suggest="zlib"
2227 dca_decoder_select="fmtconvert mdct"
2228 dds_decoder_select="texturedsp"
2229 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2230 dnxhd_decoder_select="blockdsp idctdsp"
2231 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2232 dvvideo_decoder_select="dvprofile idctdsp"
2233 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2234 dxa_decoder_select="zlib"
2235 dxv_decoder_select="lzf texturedsp"
2236 eac3_decoder_select="ac3_decoder"
2237 eac3_encoder_select="ac3_encoder"
2238 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2239 eatgq_decoder_select="aandcttables"
2240 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2241 exr_decoder_select="zlib"
2242 ffv1_decoder_select="golomb rangecoder"
2243 ffv1_encoder_select="rangecoder"
2244 ffvhuff_decoder_select="huffyuv_decoder"
2245 ffvhuff_encoder_select="huffyuv_encoder"
2246 fic_decoder_select="golomb"
2247 flac_decoder_select="flacdsp golomb"
2248 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2249 flashsv_decoder_select="zlib"
2250 flashsv_encoder_select="zlib"
2251 flashsv2_encoder_select="zlib"
2252 flashsv2_decoder_select="zlib"
2253 flv_decoder_select="h263_decoder"
2254 flv_encoder_select="h263_encoder"
2255 fourxm_decoder_select="blockdsp bswapdsp"
2256 fraps_decoder_select="bswapdsp huffman"
2257 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2258 g729_decoder_select="audiodsp"
2259 h261_decoder_select="mpegvideo"
2260 h261_encoder_select="aandcttables mpegvideoenc"
2261 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2262 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2263 h263i_decoder_select="h263_decoder"
2264 h263p_decoder_select="h263_decoder"
2265 h263p_encoder_select="h263_encoder"
2266 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2267 h264_decoder_suggest="error_resilience"
2268 h264_qsv_decoder_deps="libmfx"
2269 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2270 h264_qsv_encoder_deps="libmfx"
2271 h264_qsv_encoder_select="qsvenc"
2272 hap_decoder_select="snappy texturedsp"
2273 hap_encoder_deps="libsnappy"
2274 hap_encoder_select="texturedspenc"
2275 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2276 hevc_qsv_encoder_deps="libmfx"
2277 hevc_qsv_decoder_deps="libmfx"
2278 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2279 hevc_qsv_encoder_select="qsvenc"
2280 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2281 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2282 iac_decoder_select="imc_decoder"
2283 imc_decoder_select="bswapdsp fft mdct sinewin"
2284 indeo3_decoder_select="hpeldsp"
2285 indeo4_decoder_select="ividsp"
2286 indeo5_decoder_select="ividsp"
2287 interplay_video_decoder_select="hpeldsp"
2288 jpegls_decoder_select="golomb mjpeg_decoder"
2289 jpegls_encoder_select="golomb"
2290 jv_decoder_select="blockdsp"
2291 lagarith_decoder_select="huffyuvdsp"
2292 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2293 loco_decoder_select="golomb"
2294 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2295 metasound_decoder_select="lsp mdct sinewin"
2296 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2297 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2298 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2299 mjpegb_decoder_select="mjpeg_decoder"
2300 mlp_decoder_select="mlp_parser"
2301 motionpixels_decoder_select="bswapdsp"
2302 mp1_decoder_select="mpegaudio"
2303 mp1float_decoder_select="mpegaudio"
2304 mp2_decoder_select="mpegaudio"
2305 mp2float_decoder_select="mpegaudio"
2306 mp3_decoder_select="mpegaudio"
2307 mp3adu_decoder_select="mpegaudio"
2308 mp3adufloat_decoder_select="mpegaudio"
2309 mp3float_decoder_select="mpegaudio"
2310 mp3on4_decoder_select="mpegaudio"
2311 mp3on4float_decoder_select="mpegaudio"
2312 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2313 mpc8_decoder_select="mpegaudiodsp"
2314 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2315 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2316 mpegvideo_decoder_select="mpegvideo"
2317 mpeg1video_decoder_select="mpegvideo"
2318 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2319 mpeg2video_decoder_select="mpegvideo"
2320 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2321 mpeg2_qsv_decoder_deps="libmfx"
2322 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2323 mpeg2_qsv_encoder_deps="libmfx"
2324 mpeg2_qsv_encoder_select="qsvenc"
2325 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2326 mpeg4_encoder_select="h263_encoder"
2327 msa1_decoder_select="mss34dsp"
2328 msmpeg4v1_decoder_select="h263_decoder"
2329 msmpeg4v2_decoder_select="h263_decoder"
2330 msmpeg4v2_encoder_select="h263_encoder"
2331 msmpeg4v3_decoder_select="h263_decoder"
2332 msmpeg4v3_encoder_select="h263_encoder"
2333 mss2_decoder_select="vc1_decoder"
2334 mts2_decoder_select="mss34dsp"
2335 mxpeg_decoder_select="mjpeg_decoder"
2336 nellymoser_decoder_select="mdct sinewin"
2337 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2338 nuv_decoder_select="idctdsp lzo"
2339 on2avc_decoder_select="mdct"
2340 opus_decoder_deps="swresample"
2341 opus_decoder_select="imdct15"
2342 png_decoder_select="zlib"
2343 png_encoder_select="huffyuvencdsp zlib"
2344 prores_decoder_select="blockdsp idctdsp"
2345 prores_encoder_select="fdctdsp"
2346 qcelp_decoder_select="lsp"
2347 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2348 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2349 ra_144_decoder_select="audiodsp"
2350 ralf_decoder_select="golomb"
2351 rawvideo_decoder_select="bswapdsp"
2352 rscc_decoder_select="zlib"
2353 rtjpeg_decoder_select="me_cmp"
2354 rv10_decoder_select="h263_decoder"
2355 rv10_encoder_select="h263_encoder"
2356 rv20_decoder_select="h263_decoder"
2357 rv20_encoder_select="h263_encoder"
2358 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2359 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2360 screenpresso_decoder_select="zlib"
2361 shorten_decoder_select="golomb"
2362 sipr_decoder_select="lsp"
2363 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2364 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2365 sonic_decoder_select="golomb rangecoder"
2366 sonic_encoder_select="golomb rangecoder"
2367 sonic_ls_encoder_select="golomb rangecoder"
2368 sp5x_decoder_select="mjpeg_decoder"
2369 svq1_decoder_select="hpeldsp"
2370 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2371 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2372 svq3_decoder_suggest="zlib"
2373 tak_decoder_select="audiodsp"
2374 tdsc_decoder_select="zlib mjpeg_decoder"
2375 theora_decoder_select="vp3_decoder"
2376 thp_decoder_select="mjpeg_decoder"
2377 tiff_decoder_suggest="zlib lzma"
2378 tiff_encoder_suggest="zlib"
2379 truehd_decoder_select="mlp_parser"
2380 truemotion2_decoder_select="bswapdsp"
2381 truespeech_decoder_select="bswapdsp"
2382 tscc_decoder_select="zlib"
2383 twinvq_decoder_select="mdct lsp sinewin"
2384 txd_decoder_select="texturedsp"
2385 utvideo_decoder_select="bswapdsp"
2386 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2387 vble_decoder_select="huffyuvdsp"
2388 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2389 vc1image_decoder_select="vc1_decoder"
2390 vc1_qsv_decoder_deps="libmfx"
2391 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2392 vorbis_decoder_select="mdct"
2393 vorbis_encoder_select="mdct"
2394 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2395 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2396 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2397 vp6a_decoder_select="vp6_decoder"
2398 vp6f_decoder_select="vp6_decoder"
2399 vp7_decoder_select="h264pred videodsp vp8dsp"
2400 vp8_decoder_select="h264pred videodsp vp8dsp"
2401 vp9_decoder_select="videodsp vp9_parser"
2402 webp_decoder_select="vp8_decoder"
2403 wmalossless_decoder_select="llauddsp"
2404 wmapro_decoder_select="mdct sinewin wma_freqs"
2405 wmav1_decoder_select="mdct sinewin wma_freqs"
2406 wmav1_encoder_select="mdct sinewin wma_freqs"
2407 wmav2_decoder_select="mdct sinewin wma_freqs"
2408 wmav2_encoder_select="mdct sinewin wma_freqs"
2409 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2410 wmv1_decoder_select="h263_decoder"
2411 wmv1_encoder_select="h263_encoder"
2412 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2413 wmv2_encoder_select="h263_encoder wmv2dsp"
2414 wmv3_decoder_select="vc1_decoder"
2415 wmv3image_decoder_select="wmv3_decoder"
2416 zerocodec_decoder_select="zlib"
2417 zlib_decoder_select="zlib"
2418 zlib_encoder_select="zlib"
2419 zmbv_decoder_select="zlib"
2420 zmbv_encoder_select="zlib"
2421
2422 # hardware accelerators
2423 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2424 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2425 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2426 vaapi_deps="va_va_h"
2427 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2428 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2429 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2430 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2431 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2432 xvmc_deps="X11_extensions_XvMClib_h"
2433
2434 h263_vaapi_hwaccel_deps="vaapi"
2435 h263_vaapi_hwaccel_select="h263_decoder"
2436 h263_videotoolbox_hwaccel_deps="videotoolbox"
2437 h263_videotoolbox_hwaccel_select="h263_decoder"
2438 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2439 h264_d3d11va_hwaccel_deps="d3d11va"
2440 h264_d3d11va_hwaccel_select="h264_decoder"
2441 h264_dxva2_hwaccel_deps="dxva2"
2442 h264_dxva2_hwaccel_select="h264_decoder"
2443 h264_mmal_decoder_deps="mmal"
2444 h264_mmal_hwaccel_deps="mmal"
2445 h264_mmal_decoder_select="h264_decoder"
2446 h264_mmal_encoder_deps="mmal"
2447 h264_qsv_hwaccel_deps="libmfx"
2448 h264_vaapi_hwaccel_deps="vaapi"
2449 h264_vaapi_hwaccel_select="h264_decoder"
2450 h264_vda_decoder_deps="vda"
2451 h264_vda_decoder_select="h264_decoder"
2452 h264_vda_hwaccel_deps="vda"
2453 h264_vda_hwaccel_select="h264_decoder"
2454 h264_vda_old_hwaccel_deps="vda"
2455 h264_vda_old_hwaccel_select="h264_decoder"
2456 h264_vdpau_decoder_deps="vdpau"
2457 h264_vdpau_decoder_select="h264_decoder"
2458 h264_vdpau_hwaccel_deps="vdpau"
2459 h264_vdpau_hwaccel_select="h264_decoder"
2460 h264_videotoolbox_hwaccel_deps="videotoolbox"
2461 h264_videotoolbox_hwaccel_select="h264_decoder"
2462 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2463 hevc_d3d11va_hwaccel_select="hevc_decoder"
2464 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2465 hevc_dxva2_hwaccel_select="hevc_decoder"
2466 hevc_qsv_hwaccel_deps="libmfx"
2467 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2468 hevc_vaapi_hwaccel_select="hevc_decoder"
2469 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2470 hevc_vdpau_hwaccel_select="hevc_decoder"
2471 mpeg_vdpau_decoder_deps="vdpau"
2472 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2473 mpeg_xvmc_hwaccel_deps="xvmc"
2474 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2475 mpeg1_vdpau_decoder_deps="vdpau"
2476 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2477 mpeg1_vdpau_hwaccel_deps="vdpau"
2478 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2479 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2480 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2481 mpeg1_xvmc_hwaccel_deps="xvmc"
2482 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2483 mpeg2_crystalhd_decoder_select="crystalhd"
2484 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2485 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2486 mpeg2_dxva2_hwaccel_deps="dxva2"
2487 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2488 mpeg2_mmal_decoder_deps="mmal"
2489 mpeg2_mmal_hwaccel_deps="mmal"
2490 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2491 mpeg2_qsv_hwaccel_deps="libmfx"
2492 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2493 mpeg2_vaapi_hwaccel_deps="vaapi"
2494 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2495 mpeg2_vdpau_hwaccel_deps="vdpau"
2496 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2497 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2498 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2499 mpeg2_xvmc_hwaccel_deps="xvmc"
2500 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2501 mpeg4_crystalhd_decoder_select="crystalhd"
2502 mpeg4_vaapi_hwaccel_deps="vaapi"
2503 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2504 mpeg4_vdpau_decoder_deps="vdpau"
2505 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2506 mpeg4_vdpau_hwaccel_deps="vdpau"
2507 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2508 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2509 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2510 msmpeg4_crystalhd_decoder_select="crystalhd"
2511 vc1_crystalhd_decoder_select="crystalhd"
2512 vc1_d3d11va_hwaccel_deps="d3d11va"
2513 vc1_d3d11va_hwaccel_select="vc1_decoder"
2514 vc1_dxva2_hwaccel_deps="dxva2"
2515 vc1_dxva2_hwaccel_select="vc1_decoder"
2516 vc1_vaapi_hwaccel_deps="vaapi"
2517 vc1_vaapi_hwaccel_select="vc1_decoder"
2518 vc1_vdpau_decoder_deps="vdpau"
2519 vc1_vdpau_decoder_select="vc1_decoder"
2520 vc1_vdpau_hwaccel_deps="vdpau"
2521 vc1_vdpau_hwaccel_select="vc1_decoder"
2522 vc1_mmal_decoder_deps="mmal"
2523 vc1_mmal_hwaccel_deps="mmal"
2524 vc1_mmal_decoder_select="vc1_decoder"
2525 vc1_qsv_hwaccel_deps="libmfx"
2526 vc1_qsv_hwaccel_select="qsvdec_vc1"
2527 wmv3_crystalhd_decoder_select="crystalhd"
2528 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2529 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2530 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2531 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2532 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2533
2534 # parsers
2535 h264_parser_select="h264_decoder"
2536 hevc_parser_select="golomb"
2537 mpegvideo_parser_select="mpegvideo"
2538 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2539 vc1_parser_select="mpegvideo startcode vc1_decoder"
2540
2541 # bitstream_filters
2542 mjpeg2jpeg_bsf_select="jpegtables"
2543
2544 # external libraries
2545 chromaprint_muxer_deps="chromaprint"
2546 libaacplus_encoder_deps="libaacplus"
2547 libcelt_decoder_deps="libcelt"
2548 libdcadec_decoder_deps="libdcadec"
2549 libfaac_encoder_deps="libfaac"
2550 libfaac_encoder_select="audio_frame_queue"
2551 libfdk_aac_decoder_deps="libfdk_aac"
2552 libfdk_aac_encoder_deps="libfdk_aac"
2553 libfdk_aac_encoder_select="audio_frame_queue"
2554 libgme_demuxer_deps="libgme"
2555 libgsm_decoder_deps="libgsm"
2556 libgsm_encoder_deps="libgsm"
2557 libgsm_ms_decoder_deps="libgsm"
2558 libgsm_ms_encoder_deps="libgsm"
2559 libilbc_decoder_deps="libilbc"
2560 libilbc_encoder_deps="libilbc"
2561 libkvazaar_encoder_deps="libkvazaar"
2562 libmodplug_demuxer_deps="libmodplug"
2563 libmp3lame_encoder_deps="libmp3lame"
2564 libmp3lame_encoder_select="audio_frame_queue"
2565 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2566 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2567 libopencore_amrnb_encoder_select="audio_frame_queue"
2568 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2569 libopenh264_encoder_deps="libopenh264"
2570 libopenjpeg_decoder_deps="libopenjpeg"
2571 libopenjpeg_encoder_deps="libopenjpeg"
2572 libopus_decoder_deps="libopus"
2573 libopus_encoder_deps="libopus"
2574 libopus_encoder_select="audio_frame_queue"
2575 libquvi_demuxer_deps="libquvi"
2576 libschroedinger_decoder_deps="libschroedinger"
2577 libschroedinger_encoder_deps="libschroedinger"
2578 libshine_encoder_deps="libshine"
2579 libshine_encoder_select="audio_frame_queue"
2580 libspeex_decoder_deps="libspeex"
2581 libspeex_encoder_deps="libspeex"
2582 libspeex_encoder_select="audio_frame_queue"
2583 libstagefright_h264_decoder_deps="libstagefright_h264"
2584 libtheora_encoder_deps="libtheora"
2585 libtwolame_encoder_deps="libtwolame"
2586 libvo_aacenc_encoder_deps="libvo_aacenc"
2587 libvo_aacenc_encoder_select="audio_frame_queue"
2588 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2589 libvorbis_decoder_deps="libvorbis"
2590 libvorbis_encoder_deps="libvorbis"
2591 libvorbis_encoder_select="audio_frame_queue"
2592 libvpx_vp8_decoder_deps="libvpx"
2593 libvpx_vp8_encoder_deps="libvpx"
2594 libvpx_vp9_decoder_deps="libvpx"
2595 libvpx_vp9_encoder_deps="libvpx"
2596 libwavpack_encoder_deps="libwavpack"
2597 libwebp_encoder_deps="libwebp"
2598 libwebp_anim_encoder_deps="libwebp"
2599 libx262_encoder_deps="libx262"
2600 libx264_encoder_deps="libx264"
2601 libx264rgb_encoder_deps="libx264"
2602 libx264rgb_encoder_select="libx264_encoder"
2603 libx265_encoder_deps="libx265"
2604 libxavs_encoder_deps="libxavs"
2605 libxvid_encoder_deps="libxvid"
2606 libutvideo_decoder_deps="libutvideo"
2607 libutvideo_encoder_deps="libutvideo"
2608 libzvbi_teletext_decoder_deps="libzvbi"
2609 nvenc_encoder_deps="nvenc"
2610 nvenc_h264_encoder_deps="nvenc"
2611 nvenc_hevc_encoder_deps="nvenc"
2612
2613 # demuxers / muxers
2614 ac3_demuxer_select="ac3_parser"
2615 asf_demuxer_select="riffdec"
2616 asf_o_demuxer_select="riffdec"
2617 asf_muxer_select="riffenc"
2618 asf_stream_muxer_select="asf_muxer"
2619 avi_demuxer_select="riffdec exif"
2620 avi_muxer_select="riffenc"
2621 avisynth_demuxer_deps="avisynth"
2622 avisynth_demuxer_select="riffdec"
2623 caf_demuxer_select="riffdec"
2624 dash_muxer_select="mp4_muxer"
2625 dirac_demuxer_select="dirac_parser"
2626 dts_demuxer_select="dca_parser"
2627 dtshd_demuxer_select="dca_parser"
2628 dv_demuxer_select="dvprofile"
2629 dv_muxer_select="dvprofile"
2630 dxa_demuxer_select="riffdec"
2631 eac3_demuxer_select="ac3_parser"
2632 f4v_muxer_select="mov_muxer"
2633 flac_demuxer_select="flac_parser"
2634 hds_muxer_select="flv_muxer"
2635 hls_muxer_select="mpegts_muxer"
2636 image2_alias_pix_demuxer_select="image2_demuxer"
2637 image2_brender_pix_demuxer_select="image2_demuxer"
2638 ipod_muxer_select="mov_muxer"
2639 ismv_muxer_select="mov_muxer"
2640 libnut_demuxer_deps="libnut"
2641 libnut_muxer_deps="libnut"
2642 matroska_audio_muxer_select="matroska_muxer"
2643 matroska_demuxer_select="riffdec"
2644 matroska_demuxer_suggest="bzlib lzo zlib"
2645 matroska_muxer_select="riffenc"
2646 mmf_muxer_select="riffenc"
2647 mov_demuxer_select="riffdec"
2648 mov_demuxer_suggest="zlib"
2649 mov_muxer_select="riffenc rtpenc_chain"
2650 mp3_demuxer_select="mpegaudio_parser"
2651 mp4_muxer_select="mov_muxer"
2652 mpegts_muxer_select="adts_muxer latm_muxer"
2653 mpegtsraw_demuxer_select="mpegts_demuxer"
2654 mxf_d10_muxer_select="mxf_muxer"
2655 mxf_opatom_muxer_select="mxf_muxer"
2656 nut_muxer_select="riffenc"
2657 nuv_demuxer_select="riffdec"
2658 oga_muxer_select="ogg_muxer"
2659 ogg_demuxer_select="golomb"
2660 opus_muxer_select="ogg_muxer"
2661 psp_muxer_select="mov_muxer"
2662 rtp_demuxer_select="sdp_demuxer"
2663 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2664 rtsp_demuxer_select="http_protocol rtpdec"
2665 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2666 sap_demuxer_select="sdp_demuxer"
2667 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2668 sdp_demuxer_select="rtpdec"
2669 smoothstreaming_muxer_select="ismv_muxer"
2670 spdif_muxer_select="aac_parser"
2671 spx_muxer_select="ogg_muxer"
2672 tak_demuxer_select="tak_parser"
2673 tg2_muxer_select="mov_muxer"
2674 tgp_muxer_select="mov_muxer"
2675 vobsub_demuxer_select="mpegps_demuxer"
2676 w64_demuxer_select="wav_demuxer"
2677 w64_muxer_select="wav_muxer"
2678 wav_demuxer_select="riffdec"
2679 wav_muxer_select="riffenc"
2680 webm_muxer_select="riffenc"
2681 wtv_demuxer_select="riffdec"
2682 wtv_muxer_select="riffenc"
2683 xmv_demuxer_select="riffdec"
2684 xwma_demuxer_select="riffdec"
2685
2686 # indevs / outdevs
2687 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2688 alsa_outdev_deps="alsa_asoundlib_h"
2689 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2690 avfoundation_indev_select="avfoundation"
2691 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2692 caca_outdev_deps="libcaca"
2693 decklink_outdev_deps="decklink pthreads"
2694 decklink_outdev_extralibs="-lstdc++"
2695 decklink_indev_deps="decklink pthreads"
2696 decklink_indev_extralibs="-lstdc++"
2697 dshow_indev_deps="IBaseFilter"
2698 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2699 dv1394_indev_deps="dv1394"
2700 dv1394_indev_select="dv_demuxer"
2701 fbdev_indev_deps="linux_fb_h"
2702 fbdev_outdev_deps="linux_fb_h"
2703 gdigrab_indev_deps="CreateDIBSection"
2704 gdigrab_indev_extralibs="-lgdi32"
2705 gdigrab_indev_select="bmp_decoder"
2706 iec61883_indev_deps="libiec61883"
2707 jack_indev_deps="jack_jack_h sem_timedwait"
2708 lavfi_indev_deps="avfilter"
2709 libcdio_indev_deps="libcdio"
2710 libdc1394_indev_deps="libdc1394"
2711 libv4l2_indev_deps="libv4l2"
2712 openal_indev_deps="openal"
2713 opengl_outdev_deps="opengl"
2714 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2715 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2716 pulse_indev_deps="libpulse"
2717 pulse_outdev_deps="libpulse"
2718 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2719 qtkit_indev_select="qtkit"
2720 sdl_outdev_deps="sdl"
2721 sndio_indev_deps="sndio_h"
2722 sndio_outdev_deps="sndio_h"
2723 v4l_indev_deps="linux_videodev_h"
2724 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2725 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2726 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2727 vfwcap_indev_extralibs="-lavicap32"
2728 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2729 xv_outdev_extralibs="-lXv -lX11 -lXext"
2730 x11grab_indev_deps="x11grab"
2731 x11grab_xcb_indev_deps="libxcb"
2732
2733 # protocols
2734 async_protocol_deps="threads"
2735 bluray_protocol_deps="libbluray"
2736 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2737 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2738 ffrtmpcrypt_protocol_select="tcp_protocol"
2739 ffrtmphttp_protocol_deps="!librtmp_protocol"
2740 ffrtmphttp_protocol_select="http_protocol"
2741 ftp_protocol_select="tcp_protocol"
2742 gopher_protocol_select="network"
2743 http_protocol_select="tcp_protocol"
2744 httpproxy_protocol_select="tcp_protocol"
2745 https_protocol_select="tls_protocol"
2746 icecast_protocol_select="http_protocol"
2747 librtmp_protocol_deps="librtmp"
2748 librtmpe_protocol_deps="librtmp"
2749 librtmps_protocol_deps="librtmp"
2750 librtmpt_protocol_deps="librtmp"
2751 librtmpte_protocol_deps="librtmp"
2752 libsmbclient_protocol_deps="libsmbclient gplv3"
2753 libssh_protocol_deps="libssh"
2754 mmsh_protocol_select="http_protocol"
2755 mmst_protocol_select="network"
2756 rtmp_protocol_deps="!librtmp_protocol"
2757 rtmp_protocol_select="tcp_protocol"
2758 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2759 rtmps_protocol_deps="!librtmp_protocol"
2760 rtmps_protocol_select="tls_protocol"
2761 rtmpt_protocol_select="ffrtmphttp_protocol"
2762 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2763 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2764 rtp_protocol_select="udp_protocol"
2765 sctp_protocol_deps="struct_sctp_event_subscribe"
2766 sctp_protocol_select="network"
2767 srtp_protocol_select="rtp_protocol"
2768 tcp_protocol_select="network"
2769 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2770 tls_gnutls_protocol_select="tcp_protocol"
2771 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2772 tls_openssl_protocol_select="tcp_protocol"
2773 tls_schannel_protocol_deps="schannel"
2774 tls_schannel_protocol_select="tcp_protocol"
2775 tls_securetransport_protocol_deps="securetransport"
2776 tls_securetransport_protocol_select="tcp_protocol"
2777 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2778 udp_protocol_select="network"
2779 udplite_protocol_select="network"
2780 unix_protocol_deps="sys_un_h"
2781 unix_protocol_select="network"
2782
2783 # filters
2784 amovie_filter_deps="avcodec avformat"
2785 aresample_filter_deps="swresample"
2786 ass_filter_deps="libass"
2787 asyncts_filter_deps="avresample"
2788 atempo_filter_deps="avcodec"
2789 atempo_filter_select="rdft"
2790 azmq_filter_deps="libzmq"
2791 blackframe_filter_deps="gpl"
2792 boxblur_filter_deps="gpl"
2793 bs2b_filter_deps="libbs2b"
2794 colormatrix_filter_deps="gpl"
2795 cover_rect_filter_deps="avcodec avformat gpl"
2796 cropdetect_filter_deps="gpl"
2797 delogo_filter_deps="gpl"
2798 deshake_filter_select="pixelutils"
2799 drawtext_filter_deps="libfreetype"
2800 dynaudnorm_filter_deps="copysign erf"
2801 ebur128_filter_deps="gpl"
2802 eq_filter_deps="gpl"
2803 fftfilt_filter_deps="avcodec"
2804 fftfilt_filter_select="rdft"
2805 flite_filter_deps="libflite"
2806 find_rect_filter_deps="avcodec avformat gpl"
2807 frei0r_filter_deps="frei0r dlopen"
2808 frei0r_src_filter_deps="frei0r dlopen"
2809 fspp_filter_deps="gpl"
2810 geq_filter_deps="gpl"
2811 histeq_filter_deps="gpl"
2812 hqdn3d_filter_deps="gpl"
2813 interlace_filter_deps="gpl"
2814 kerndeint_filter_deps="gpl"
2815 ladspa_filter_deps="ladspa dlopen"
2816 mcdeint_filter_deps="avcodec gpl"
2817 movie_filter_deps="avcodec avformat"
2818 mpdecimate_filter_deps="gpl"
2819 mpdecimate_filter_select="pixelutils"
2820 mptestsrc_filter_deps="gpl"
2821 negate_filter_deps="lut_filter"
2822 perspective_filter_deps="gpl"
2823 pp7_filter_deps="gpl"
2824 ocr_filter_deps="libtesseract"
2825 ocv_filter_deps="libopencv"
2826 owdenoise_filter_deps="gpl"
2827 pan_filter_deps="swresample"
2828 phase_filter_deps="gpl"
2829 pp_filter_deps="gpl postproc"
2830 pullup_filter_deps="gpl"
2831 removelogo_filter_deps="avcodec avformat swscale"
2832 repeatfields_filter_deps="gpl"
2833 resample_filter_deps="avresample"
2834 rubberband_filter_deps="librubberband"
2835 sab_filter_deps="gpl swscale"
2836 scale_filter_deps="swscale"
2837 scale2ref_filter_deps="swscale"
2838 select_filter_select="pixelutils"
2839 smartblur_filter_deps="gpl swscale"
2840 showcqt_filter_deps="avcodec avformat swscale"
2841 showcqt_filter_select="fft"
2842 showfreqs_filter_deps="avcodec"
2843 showfreqs_filter_select="fft"
2844 showspectrum_filter_deps="avcodec"
2845 showspectrum_filter_select="rdft"
2846 spp_filter_deps="gpl avcodec"
2847 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2848 stereo3d_filter_deps="gpl"
2849 subtitles_filter_deps="avformat avcodec libass"
2850 super2xsai_filter_deps="gpl"
2851 tinterlace_filter_deps="gpl"
2852 vidstabdetect_filter_deps="libvidstab"
2853 vidstabtransform_filter_deps="libvidstab"
2854 pixfmts_super2xsai_test_deps="super2xsai_filter"
2855 tinterlace_merge_test_deps="tinterlace_filter"
2856 tinterlace_pad_test_deps="tinterlace_filter"
2857 uspp_filter_deps="gpl avcodec"
2858 zmq_filter_deps="libzmq"
2859 zoompan_filter_deps="swscale"
2860 zscale_filter_deps="libzimg"
2861
2862 # examples
2863 avio_reading="avformat avcodec avutil"
2864 avio_dir_cmd="avformat avutil"
2865 avcodec_example_deps="avcodec avutil"
2866 decoding_encoding_example_deps="avcodec avformat avutil"
2867 demuxing_decoding_example_deps="avcodec avformat avutil"
2868 extract_mvs_example_deps="avcodec avformat avutil"
2869 filter_audio_example_deps="avfilter avutil"
2870 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2871 filtering_video_example_deps="avfilter avcodec avformat avutil"
2872 metadata_example_deps="avformat avutil"
2873 muxing_example_deps="avcodec avformat avutil swscale"
2874 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2875 remuxing_example_deps="avcodec avformat avutil"
2876 resampling_audio_example_deps="avutil swresample"
2877 scaling_video_example_deps="avutil swscale"
2878 transcode_aac_example_deps="avcodec avformat swresample"
2879 transcoding_example_deps="avfilter avcodec avformat avutil"
2880
2881 # libraries, in linking order
2882 avcodec_deps="avutil"
2883 avdevice_deps="avformat avcodec avutil"
2884 avfilter_deps="avutil"
2885 avformat_deps="avcodec avutil"
2886 avresample_deps="avutil"
2887 postproc_deps="avutil gpl"
2888 swresample_deps="avutil"
2889 swscale_deps="avutil"
2890
2891 # programs
2892 ffmpeg_deps="avcodec avfilter avformat swresample"
2893 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2894                null_filter
2895                setpts_filter trim_filter"
2896 ffplay_deps="avcodec avformat swscale swresample sdl"
2897 ffplay_libs='$sdl_libs'
2898 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2899 ffprobe_deps="avcodec avformat"
2900 ffserver_deps="avformat fork sarestart"
2901 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2902
2903 # documentation
2904 podpages_deps="perl"
2905 manpages_deps="perl pod2man"
2906 htmlpages_deps="perl"
2907 htmlpages_deps_any="makeinfo_html texi2html"
2908 txtpages_deps="perl makeinfo"
2909 doc_deps_any="manpages htmlpages podpages txtpages"
2910
2911 # default parameters
2912
2913 logfile="config.log"
2914
2915 # installation paths
2916 prefix_default="/usr/local"
2917 bindir_default='${prefix}/bin'
2918 datadir_default='${prefix}/share/ffmpeg'
2919 docdir_default='${prefix}/share/doc/ffmpeg'
2920 incdir_default='${prefix}/include'
2921 libdir_default='${prefix}/lib'
2922 mandir_default='${prefix}/share/man'
2923
2924 # toolchain
2925 ar_default="ar"
2926 cc_default="gcc"
2927 cxx_default="g++"
2928 host_cc_default="gcc"
2929 cp_f="cp -f"
2930 doxygen_default="doxygen"
2931 install="install"
2932 ln_s="ln -s -f"
2933 nm_default="nm -g"
2934 objformat="elf"
2935 pkg_config_default=pkg-config
2936 ranlib_default="ranlib"
2937 strip_default="strip"
2938 yasmexe_default="yasm"
2939 windres_default="windres"
2940
2941 # OS
2942 target_os_default=$(tolower $(uname -s))
2943 host_os=$target_os_default
2944
2945 # machine
2946 if test "$target_os_default" = aix; then
2947     arch_default=$(uname -p)
2948     strip_default="strip -X32_64"
2949 else
2950     arch_default=$(uname -m)
2951 fi
2952 cpu="generic"
2953 intrinsics="none"
2954
2955 # configurable options
2956 enable $PROGRAM_LIST
2957 enable $DOCUMENT_LIST
2958 enable $EXAMPLE_LIST
2959 enable $(filter_out avresample $LIBRARY_LIST)
2960 enable stripping
2961
2962 enable asm
2963 enable debug
2964 enable doc
2965 enable faan faandct faanidct
2966 enable optimizations
2967 enable runtime_cpudetect
2968 enable safe_bitstream_reader
2969 enable static
2970 enable swscale_alpha
2971 enable valgrind_backtrace
2972
2973 sws_max_filter_size_default=256
2974 set_default sws_max_filter_size
2975
2976 # Enable hwaccels by default.
2977 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
2978 enable xlib
2979
2980 # build settings
2981 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2982 LIBPREF="lib"
2983 LIBSUF=".a"
2984 FULLNAME='$(NAME)$(BUILDSUF)'
2985 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2986 SLIBPREF="lib"
2987 SLIBSUF=".so"
2988 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2989 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2990 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2991 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2992 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2993 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2994
2995 asflags_filter=echo
2996 cflags_filter=echo
2997 ldflags_filter=echo
2998
2999 AS_C='-c'
3000 AS_O='-o $@'
3001 CC_C='-c'
3002 CC_E='-E -o $@'
3003 CC_O='-o $@'
3004 CXX_C='-c'
3005 CXX_O='-o $@'
3006 LD_O='-o $@'
3007 LD_LIB='-l%'
3008 LD_PATH='-L'
3009 HOSTCC_C='-c'
3010 HOSTCC_E='-E -o $@'
3011 HOSTCC_O='-o $@'
3012 HOSTLD_O='-o $@'
3013
3014 host_libs='-lm'
3015 host_cflags_filter=echo
3016 host_ldflags_filter=echo
3017
3018 target_path='$(CURDIR)'
3019
3020 # since the object filename is not given with the -MM flag, the compiler
3021 # is only able to print the basename, and we must add the path ourselves
3022 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3023 DEPFLAGS='-MM'
3024
3025 # find source path
3026 if test -f configure; then
3027     source_path=.
3028 else
3029     source_path=$(cd $(dirname "$0"); pwd)
3030     case "$source_path" in
3031         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3032     esac
3033     test -e "$source_path/config.h" &&
3034         die "Out of tree builds are impossible with config.h in source dir."
3035 fi
3036
3037 for v in "$@"; do
3038     r=${v#*=}
3039     l=${v%"$r"}
3040     r=$(sh_quote "$r")
3041     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3042 done
3043
3044 find_things(){
3045     thing=$1
3046     pattern=$2
3047     file=$source_path/$3
3048     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3049 }
3050
3051 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3052 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3053 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3054 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3055 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3056 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3057 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3058 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3059 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3060 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3061 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3062
3063 ALL_COMPONENTS="
3064     $BSF_LIST
3065     $DECODER_LIST
3066     $DEMUXER_LIST
3067     $ENCODER_LIST
3068     $FILTER_LIST
3069     $HWACCEL_LIST
3070     $INDEV_LIST
3071     $MUXER_LIST
3072     $OUTDEV_LIST
3073     $PARSER_LIST
3074     $PROTOCOL_LIST
3075 "
3076
3077 for n in $COMPONENT_LIST; do
3078     v=$(toupper ${n%s})_LIST
3079     eval enable \$$v
3080     eval ${n}_if_any="\$$v"
3081 done
3082
3083 enable $ARCH_EXT_LIST
3084
3085 die_unknown(){
3086     echo "Unknown option \"$1\"."
3087     echo "See $0 --help for available options."
3088     exit 1
3089 }
3090
3091 print_in_columns() {
3092     cols=$(expr $ncols / 24)
3093     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3094 }
3095
3096 show_list() {
3097     suffix=_$1
3098     shift
3099     echo $* | sed s/$suffix//g | print_in_columns
3100     exit 0
3101 }
3102
3103 rand_list(){
3104     IFS=', '
3105     set -- $*
3106     unset IFS
3107     for thing; do
3108         comp=${thing%:*}
3109         prob=${thing#$comp}
3110         prob=${prob#:}
3111         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3112         echo "prob ${prob:-0.5}"
3113         printf '%s\n' $comp
3114     done
3115 }
3116
3117 do_random(){
3118     action=$1
3119     shift
3120     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3121     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3122 }
3123
3124 for opt do
3125     optval="${opt#*=}"
3126     case "$opt" in
3127         --extra-ldflags=*)
3128             add_ldflags $optval
3129         ;;
3130         --extra-ldexeflags=*)
3131             add_ldexeflags $optval
3132         ;;
3133         --extra-ldlibflags=*)
3134             add_ldlibflags $optval
3135         ;;
3136         --extra-libs=*)
3137             add_extralibs $optval
3138         ;;
3139         --disable-devices)
3140             disable $INDEV_LIST $OUTDEV_LIST
3141         ;;
3142         --enable-debug=*)
3143             debuglevel="$optval"
3144         ;;
3145         --disable-programs)
3146             disable $PROGRAM_LIST
3147         ;;
3148         --disable-everything)
3149             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3150         ;;
3151         --disable-all)
3152             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3153             disable $LIBRARY_LIST $PROGRAM_LIST doc
3154             enable avutil
3155         ;;
3156         --enable-random|--disable-random)
3157             action=${opt%%-random}
3158             do_random ${action#--} $COMPONENT_LIST
3159         ;;
3160         --enable-random=*|--disable-random=*)
3161             action=${opt%%-random=*}
3162             do_random ${action#--} $optval
3163         ;;
3164         --enable-*=*|--disable-*=*)
3165             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3166             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3167             eval list=\$$(toupper $thing)_LIST
3168             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3169             list=$(filter "$name" $list)
3170             [ "$list" = "" ] && warn "Option $opt did not match anything"
3171             $action $list
3172         ;;
3173         --enable-?*|--disable-?*)
3174             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3175             if is_in $option $COMPONENT_LIST; then
3176                 test $action = disable && action=unset
3177                 eval $action \$$(toupper ${option%s})_LIST
3178             elif is_in $option $CMDLINE_SELECT; then
3179                 $action $option
3180             else
3181                 die_unknown $opt
3182             fi
3183         ;;
3184         --list-*)
3185             NAME="${opt#--list-}"
3186             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3187             NAME=${NAME%s}
3188             eval show_list $NAME \$$(toupper $NAME)_LIST
3189         ;;
3190         --help|-h) show_help
3191         ;;
3192         --fatal-warnings) enable fatal_warnings
3193         ;;
3194         *)
3195             optname="${opt%%=*}"
3196             optname="${optname#--}"
3197             optname=$(echo "$optname" | sed 's/-/_/g')
3198             if is_in $optname $CMDLINE_SET; then
3199                 eval $optname='$optval'
3200             elif is_in $optname $CMDLINE_APPEND; then
3201                 append $optname "$optval"
3202             else
3203                 die_unknown $opt
3204             fi
3205         ;;
3206     esac
3207 done
3208
3209 for e in $env; do
3210     eval "export $e"
3211 done
3212
3213 disabled logging && logfile=/dev/null
3214
3215 # Disable all the library-specific components if the library itself
3216 # is disabled, see AVCODEC_LIST and following _LIST variables.
3217
3218 disable_components(){
3219     disabled ${1} && disable $(
3220         eval components="\$$(toupper ${1})_COMPONENTS"
3221         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3222     )
3223 }
3224
3225 map 'disable_components $v' $LIBRARY_LIST
3226
3227 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3228 set >> $logfile
3229
3230 test -n "$valgrind" && toolchain="valgrind-memcheck"
3231
3232 case "$toolchain" in
3233     clang-asan)
3234         cc_default="clang"
3235         add_cflags  -fsanitize=address
3236         add_ldflags -fsanitize=address
3237     ;;
3238     clang-tsan)
3239         cc_default="clang"
3240         add_cflags  -fsanitize=thread -pie
3241         add_ldflags -fsanitize=thread -pie
3242     ;;
3243     clang-usan)
3244         cc_default="clang"
3245         add_cflags  -fsanitize=undefined
3246         add_ldflags -fsanitize=undefined
3247     ;;
3248     gcc-asan)
3249         cc_default="gcc"
3250         add_cflags  -fsanitize=address
3251         add_ldflags -fsanitize=address
3252     ;;
3253     gcc-tsan)
3254         cc_default="gcc"
3255         add_cflags  -fsanitize=thread -pie -fPIC
3256         add_ldflags -fsanitize=thread -pie -fPIC
3257     ;;
3258     gcc-usan)
3259         cc_default="gcc"
3260         add_cflags  -fsanitize=undefined
3261         add_ldflags -fsanitize=undefined
3262     ;;
3263     valgrind-massif)
3264         target_exec_default=${valgrind:-"valgrind"}
3265         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"
3266     ;;
3267     valgrind-memcheck)
3268         target_exec_default=${valgrind:-"valgrind"}
3269         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3270     ;;
3271     msvc)
3272         # Check whether the current MSVC version needs the C99 converter.
3273         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3274         # support enough of C99 to build ffmpeg. Default to the new
3275         # behaviour if the regexp was unable to match anything, since this
3276         # successfully parses the version number of existing supported
3277         # versions that require the converter (MSVC 2010 and 2012).
3278         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3279         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3280             cc_default="cl"
3281         else
3282             cc_default="c99wrap cl"
3283         fi
3284         ld_default="$source_path/compat/windows/mslink"
3285         nm_default="dumpbin -symbols"
3286         ar_default="lib"
3287         case "$arch" in
3288         arm*)
3289             as_default="armasm"
3290             ;;
3291         esac
3292         target_os_default="win32"
3293         # Use a relative path for TMPDIR. This makes sure all the
3294         # ffconf temp files are written with a relative path, avoiding
3295         # issues with msys/win32 path conversion for MSVC parameters
3296         # such as -Fo<file> or -out:<file>.
3297         TMPDIR=.
3298     ;;
3299     icl)
3300         cc_default="icl"
3301         ld_default="xilink"
3302         nm_default="dumpbin -symbols"
3303         ar_default="xilib"
3304         target_os_default="win32"
3305         TMPDIR=.
3306     ;;
3307     gcov)
3308         add_cflags  -fprofile-arcs -ftest-coverage
3309         add_ldflags -fprofile-arcs -ftest-coverage
3310     ;;
3311     hardened)
3312         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3313         add_cflags   -fno-strict-overflow -fstack-protector-all
3314         add_ldflags  -Wl,-z,relro -Wl,-z,now
3315     ;;
3316     ?*)
3317         die "Unknown toolchain $toolchain"
3318     ;;
3319 esac
3320
3321 test -n "$cross_prefix" && enable cross_compile
3322
3323 if enabled cross_compile; then
3324     test -n "$arch" && test -n "$target_os" ||
3325         die "Must specify target arch and OS when cross-compiling"
3326 fi
3327
3328 ar_default="${cross_prefix}${ar_default}"
3329 cc_default="${cross_prefix}${cc_default}"
3330 cxx_default="${cross_prefix}${cxx_default}"
3331 nm_default="${cross_prefix}${nm_default}"
3332 pkg_config_default="${cross_prefix}${pkg_config_default}"
3333 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3334     ranlib_default="${cross_prefix}${ranlib_default} -D"
3335 else
3336     ranlib_default="${cross_prefix}${ranlib_default}"
3337 fi
3338 strip_default="${cross_prefix}${strip_default}"
3339 windres_default="${cross_prefix}${windres_default}"
3340
3341 sysinclude_default="${sysroot}/usr/include"
3342
3343 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3344     target_exec target_os yasmexe
3345 enabled cross_compile || host_cc_default=$cc
3346 set_default host_cc
3347
3348 pkg_config_fail_message=""
3349 if ! $pkg_config --version >/dev/null 2>&1; then
3350     warn "$pkg_config not found, library detection may fail."
3351     pkg_config=false
3352 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3353     pkg_config_fail_message="
3354 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3355 fi
3356
3357 if test $doxygen != $doxygen_default && \
3358   ! $doxygen --version >/dev/null 2>&1; then
3359     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3360 fi
3361
3362 exesuf() {
3363     case $1 in
3364         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3365     esac
3366 }
3367
3368 EXESUF=$(exesuf $target_os)
3369 HOSTEXESUF=$(exesuf $host_os)
3370
3371 # set temporary file name
3372 : ${TMPDIR:=$TEMPDIR}
3373 : ${TMPDIR:=$TMP}
3374 : ${TMPDIR:=/tmp}
3375
3376 if [ -n "$tempprefix" ] ; then
3377     mktemp(){
3378         echo $tempprefix.${HOSTNAME}.${UID}
3379     }
3380 elif ! check_cmd mktemp -u XXXXXX; then
3381     # simple replacement for missing mktemp
3382     # NOT SAFE FOR GENERAL USE
3383     mktemp(){
3384         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3385     }
3386 fi
3387
3388 tmpfile(){
3389     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3390         (set -C; exec > $tmp) 2>/dev/null ||
3391         die "Unable to create temporary file in $TMPDIR."
3392     append TMPFILES $tmp
3393     eval $1=$tmp
3394 }
3395
3396 trap 'rm -f -- $TMPFILES' EXIT
3397
3398 tmpfile TMPASM .asm
3399 tmpfile TMPC   .c
3400 tmpfile TMPCPP .cpp
3401 tmpfile TMPE   $EXESUF
3402 tmpfile TMPH   .h
3403 tmpfile TMPM   .m
3404 tmpfile TMPO   .o
3405 tmpfile TMPS   .S
3406 tmpfile TMPSH  .sh
3407 tmpfile TMPV   .ver
3408
3409 unset -f mktemp
3410
3411 chmod +x $TMPE
3412
3413 # make sure we can execute files in $TMPDIR
3414 cat > $TMPSH 2>> $logfile <<EOF
3415 #! /bin/sh
3416 EOF
3417 chmod +x $TMPSH >> $logfile 2>&1
3418 if ! $TMPSH >> $logfile 2>&1; then
3419     cat <<EOF
3420 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3421 variable to another directory and make sure that it is not mounted noexec.
3422 EOF
3423     die "Sanity test failed."
3424 fi
3425
3426 armasm_flags(){
3427     for flag; do
3428         case $flag in
3429             # Filter out MSVC cl.exe options from cflags that shouldn't
3430             # be passed to gas-preprocessor
3431             -M[TD]*)                                            ;;
3432             *)                  echo $flag                      ;;
3433         esac
3434    done
3435 }
3436
3437 ccc_flags(){
3438     for flag; do
3439         case $flag in
3440             -std=c99)           echo -c99                       ;;
3441             -mcpu=*)            echo -arch ${flag#*=}           ;;
3442             -mieee)             echo -ieee                      ;;
3443             -O*|-fast)          echo $flag                      ;;
3444             -fno-math-errno)    echo -assume nomath_errno       ;;
3445             -g)                 echo -g3                        ;;
3446             -Wall)              echo -msg_enable level2         ;;
3447             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3448             -Wl,*)              echo $flag                      ;;
3449             -f*|-W*)                                            ;;
3450             *)                  echo $flag                      ;;
3451         esac
3452    done
3453 }
3454
3455 cparser_flags(){
3456     for flag; do
3457         case $flag in
3458             -Wno-switch)             echo -Wno-switch-enum ;;
3459             -Wno-format-zero-length) ;;
3460             -Wdisabled-optimization) ;;
3461             -Wno-pointer-sign)       echo -Wno-other ;;
3462             *)                       echo $flag ;;
3463         esac
3464     done
3465 }
3466
3467 msvc_common_flags(){
3468     for flag; do
3469         case $flag in
3470             # In addition to specifying certain flags under the compiler
3471             # specific filters, they must be specified here as well or else the
3472             # generic catch all at the bottom will print the original flag.
3473             -Wall)                ;;
3474             -std=c99)             ;;
3475             # Common flags
3476             -fomit-frame-pointer) ;;
3477             -g)                   echo -Z7 ;;
3478             -fno-math-errno)      ;;
3479             -fno-common)          ;;
3480             -fno-signed-zeros)    ;;
3481             -fPIC)                ;;
3482             -mthumb)              ;;
3483             -march=*)             ;;
3484             -lz)                  echo zlib.lib ;;
3485             -lavifil32)           echo vfw32.lib ;;
3486             -lavicap32)           echo vfw32.lib user32.lib ;;
3487             -l*)                  echo ${flag#-l}.lib ;;
3488             -LARGEADDRESSAWARE)   echo $flag ;;
3489             -L*)                  echo -libpath:${flag#-L} ;;
3490             *)                    echo $flag ;;
3491         esac
3492     done
3493 }
3494
3495 msvc_flags(){
3496     msvc_common_flags "$@"
3497     for flag; do
3498         case $flag in
3499             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3500                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3501                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3502                                        -wd4307 \
3503                                        -wd4273 -wd4554 -wd4701 ;;
3504         esac
3505     done
3506 }
3507
3508 icl_flags(){
3509     msvc_common_flags "$@"
3510     for flag; do
3511         case $flag in
3512             # Despite what Intel's documentation says -Wall, which is supported
3513             # on Windows, does enable remarks so disable them here.
3514             -Wall)                echo $flag -Qdiag-disable:remark ;;
3515             -std=c99)             echo -Qstd=c99 ;;
3516             -flto)                echo -ipo ;;
3517         esac
3518     done
3519 }
3520
3521 icc_flags(){
3522     for flag; do
3523         case $flag in
3524             -flto)                echo -ipo ;;
3525             *)                    echo $flag ;;
3526         esac
3527     done
3528 }
3529
3530 pgi_flags(){
3531     for flag; do
3532         case $flag in
3533             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3534             -fomit-frame-pointer) echo -Mnoframe ;;
3535             -g)                   echo -gopt ;;
3536             *)                    echo $flag ;;
3537         esac
3538     done
3539 }
3540
3541 suncc_flags(){
3542     for flag; do
3543         case $flag in
3544             -march=*|-mcpu=*)
3545                 case "${flag#*=}" in
3546                     native)                   echo -xtarget=native       ;;
3547                     v9|niagara)               echo -xarch=sparc          ;;
3548                     ultrasparc)               echo -xarch=sparcvis       ;;
3549                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3550                     i586|pentium)             echo -xchip=pentium        ;;
3551                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3552                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3553                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3554                     pentium4*)          echo -xtarget=pentium4           ;;
3555                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3556                     *-sse3)             echo -xarch=sse3                 ;;
3557                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3558                     bonnell)                   echo -xarch=ssse3         ;;
3559                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3560                     westmere)                  echo -xtarget=westmere    ;;
3561                     silvermont)                echo -xarch=sse4_2        ;;
3562                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3563                     core-avx*|ivybridge|haswell|broadwell)
3564                                                echo -xarch=avx           ;;
3565                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3566                     btver1)                    echo -xarch=amdsse4a      ;;
3567                     btver2|bdver*)             echo -xarch=avx           ;;
3568                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3569                     k8|opteron|athlon64|athlon-fx)
3570                                                echo -xarch=sse2a         ;;
3571                     athlon*)                   echo -xarch=pentium_proa  ;;
3572                 esac
3573                 ;;
3574             -std=c99)             echo -xc99              ;;
3575             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3576             -fPIC)                echo -KPIC -xcode=pic32 ;;
3577             -W*,*)                echo $flag              ;;
3578             -f*-*|-W*|-mimpure-text)                      ;;
3579             -shared)              echo -G                 ;;
3580             *)                    echo $flag              ;;
3581         esac
3582     done
3583 }
3584
3585 tms470_flags(){
3586     for flag; do
3587         case $flag in
3588             -march=*|-mcpu=*)
3589                 case "${flag#*=}" in
3590                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3591                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3592                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3593                     armv6*|arm11*)          echo -mv=6   ;;
3594                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3595                                             echo -mv=5e  ;;
3596                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3597                 esac
3598                 ;;
3599             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3600             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3601             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3602             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3603             -msoft-float)   echo --float_support=vfplib       ;;
3604             -O[0-3]|-mf=*)  echo $flag                        ;;
3605             -g)             echo -g -mn                       ;;
3606             -pds=*)         echo $flag                        ;;
3607             -D*|-I*)        echo $flag                        ;;
3608             --gcc|--abi=*)  echo $flag                        ;;
3609             -me)            echo $flag                        ;;
3610         esac
3611     done
3612 }
3613
3614 probe_cc(){
3615     pfx=$1
3616     _cc=$2
3617     first=$3
3618
3619     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3620     unset _ld_o _ldflags _ld_lib _ld_path
3621     unset _depflags _DEPCMD _DEPFLAGS
3622     _flags_filter=echo
3623
3624     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3625         true # no-op to avoid reading stdin in following checks
3626     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3627         _type=llvm_gcc
3628         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3629         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3630         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3631         _cflags_speed='-O3'
3632         _cflags_size='-Os'
3633     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3634         _type=gcc
3635         gcc_version=$($_cc --version | head -n1)
3636         gcc_basever=$($_cc -dumpversion)
3637         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3638         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3639         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3640         case $gcc_basever in
3641             2*) ;;
3642             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3643         esac
3644         if [ "$first" = true ]; then
3645             case $gcc_basever in
3646                 4.2*)
3647                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3648             esac
3649         fi
3650         _cflags_speed='-O3'
3651         _cflags_size='-Os'
3652     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3653         _type=icc
3654         _ident=$($_cc --version | head -n1)
3655         _depflags='-MMD'
3656         _cflags_speed='-O3'
3657         _cflags_size='-Os'
3658         _cflags_noopt='-O1'
3659         _flags_filter=icc_flags
3660     elif $_cc -v 2>&1 | grep -q xlc; then
3661         _type=xlc
3662         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3663         _cflags_speed='-O5'
3664         _cflags_size='-O5 -qcompact'
3665     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3666         _type=ccc
3667         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3668         _DEPFLAGS='-M'
3669         _cflags_speed='-fast'
3670         _cflags_size='-O1'
3671         _flags_filter=ccc_flags
3672     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3673         test -d "$sysroot" || die "No valid sysroot specified."
3674         _type=armcc
3675         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3676         armcc_conf="$PWD/armcc.conf"
3677         $_cc --arm_linux_configure                 \
3678              --arm_linux_config_file="$armcc_conf" \
3679              --configure_sysroot="$sysroot"        \
3680              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3681              die "Error creating armcc configuration file."
3682         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3683         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3684         as_default="${cross_prefix}gcc"
3685         _depflags='-MMD'
3686         _cflags_speed='-O3'
3687         _cflags_size='-Os'
3688     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3689         _type=tms470
3690         _ident=$($_cc -version | head -n1 | tr -s ' ')
3691         _flags='--gcc --abi=eabi -me'
3692         _cc_e='-ppl -fe=$@'
3693         _cc_o='-fe=$@'
3694         _depflags='-ppa -ppd=$(@:.o=.d)'
3695         _cflags_speed='-O3 -mf=5'
3696         _cflags_size='-O3 -mf=2'
3697         _flags_filter=tms470_flags
3698     elif $_cc -v 2>&1 | grep -q clang; then
3699         _type=clang
3700         _ident=$($_cc --version 2>/dev/null | head -n1)
3701         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3702         _cflags_speed='-O3'
3703         _cflags_size='-Os'
3704     elif $_cc -V 2>&1 | grep -q Sun; then
3705         _type=suncc
3706         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3707         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3708         _DEPFLAGS='-xM1 -xc99'
3709         _ldflags='-std=c99'
3710         _cflags_speed='-O5'
3711         _cflags_size='-O5 -xspace'
3712         _flags_filter=suncc_flags
3713     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3714         _type=pathscale
3715         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3716         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3717         _cflags_speed='-O2'
3718         _cflags_size='-Os'
3719         _flags_filter='filter_out -Wdisabled-optimization'
3720     elif $_cc -v 2>&1 | grep -q Open64; then
3721         _type=open64
3722         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3723         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3724         _cflags_speed='-O2'
3725         _cflags_size='-Os'
3726         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3727     elif $_cc -V 2>&1 | grep -q Portland; then
3728         _type=pgi
3729         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3730         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3731         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3732         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3733         _cflags_noopt="-O"
3734         _flags_filter=pgi_flags
3735     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3736         _type=armasm
3737         _ident=$($_cc | head -n1)
3738         # 4509: "This form of conditional instruction is deprecated"
3739         _flags="-nologo -ignore 4509"
3740         _flags_filter=armasm_flags
3741     elif $_cc 2>&1 | grep -q Intel; then
3742         _type=icl
3743         _ident=$($_cc 2>&1 | head -n1)
3744         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3745         # Not only is O3 broken on 13.x+ but it is slower on all previous
3746         # versions (tested) as well.
3747         _cflags_speed="-O2"
3748         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3749         if $_cc 2>&1 | grep -q Linker; then
3750             _ld_o='-out:$@'
3751         else
3752             _ld_o='-Fe$@'
3753         fi
3754         _cc_o='-Fo$@'
3755         _cc_e='-P'
3756         _flags_filter=icl_flags
3757         _ld_lib='lib%.a'
3758         _ld_path='-libpath:'
3759         # -Qdiag-error to make icl error when seeing certain unknown arguments
3760         _flags='-nologo -Qdiag-error:4044,10157'
3761         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3762         # with MSVC which enables it by default.
3763         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3764         disable stripping
3765     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3766         _type=msvc
3767         _ident=$($_cc 2>&1 | head -n1)
3768         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3769         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3770         _cflags_speed="-O2"
3771         _cflags_size="-O1"
3772         if $_cc -nologo- 2>&1 | grep -q Linker; then
3773             _ld_o='-out:$@'
3774         else
3775             _ld_o='-Fe$@'
3776         fi
3777         _cc_o='-Fo$@'
3778         _cc_e='-P -Fi$@'
3779         _flags_filter=msvc_flags
3780         _ld_lib='lib%.a'
3781         _ld_path='-libpath:'
3782         _flags='-nologo'
3783         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3784         disable stripping
3785     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3786         _type=cparser
3787         _ident=$($_cc --version | head -n1)
3788         _depflags='-MMD'
3789         _cflags_speed='-O4'
3790         _cflags_size='-O2'
3791         _flags_filter=cparser_flags
3792     fi
3793
3794     eval ${pfx}_type=\$_type
3795     eval ${pfx}_ident=\$_ident
3796 }
3797
3798 set_ccvars(){
3799     eval ${1}_C=\${_cc_c-\${${1}_C}}
3800     eval ${1}_E=\${_cc_e-\${${1}_E}}
3801     eval ${1}_O=\${_cc_o-\${${1}_O}}
3802
3803     if [ -n "$_depflags" ]; then
3804         eval ${1}_DEPFLAGS=\$_depflags
3805     else
3806         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3807         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3808         eval DEP${1}FLAGS=\$_flags
3809     fi
3810 }
3811
3812 probe_cc cc "$cc" "true"
3813 cflags_filter=$_flags_filter
3814 cflags_speed=$_cflags_speed
3815 cflags_size=$_cflags_size
3816 cflags_noopt=$_cflags_noopt
3817 add_cflags $_flags $_cflags
3818 cc_ldflags=$_ldflags
3819 set_ccvars CC
3820
3821 probe_cc hostcc "$host_cc"
3822 host_cflags_filter=$_flags_filter
3823 add_host_cflags  $_flags $_cflags
3824 set_ccvars HOSTCC
3825
3826 test -n "$cc_type" && enable $cc_type ||
3827     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3828
3829 : ${as_default:=$cc}
3830 : ${dep_cc_default:=$cc}
3831 : ${ld_default:=$cc}
3832 : ${host_ld_default:=$host_cc}
3833 set_default ar as dep_cc ld host_ld windres
3834
3835 probe_cc as "$as"
3836 asflags_filter=$_flags_filter
3837 add_asflags $_flags $_cflags
3838 set_ccvars AS
3839
3840 probe_cc ld "$ld"
3841 ldflags_filter=$_flags_filter
3842 add_ldflags $_flags $_ldflags
3843 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3844 LD_O=${_ld_o-$LD_O}
3845 LD_LIB=${_ld_lib-$LD_LIB}
3846 LD_PATH=${_ld_path-$LD_PATH}
3847
3848 probe_cc hostld "$host_ld"
3849 host_ldflags_filter=$_flags_filter
3850 add_host_ldflags $_flags $_ldflags
3851 HOSTLD_O=${_ld_o-$HOSTLD_O}
3852
3853 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3854     probe_cc depcc "$dep_cc"
3855     CCDEP=${_DEPCMD:-$DEPCMD}
3856     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3857     DEPCCFLAGS=$_flags
3858 fi
3859
3860 if $ar 2>&1 | grep -q Microsoft; then
3861     arflags="-nologo"
3862     ar_o='-out:$@'
3863 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3864     arflags="rq"
3865     ar_o='$@'
3866 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3867     arflags='-Xany -r -c'
3868     ar_o='$@'
3869 elif $ar 2>&1 | grep -q "\[D\] "; then
3870     arflags="rcD"
3871     ar_o='$@'
3872 else
3873     arflags="rc"
3874     ar_o='$@'
3875 fi
3876
3877 add_cflags $extra_cflags
3878 add_cxxflags $extra_cxxflags
3879 add_asflags $extra_cflags
3880
3881 if test -n "$sysroot"; then
3882     case "$cc_type" in
3883         gcc|llvm_gcc|clang)
3884             add_cppflags --sysroot="$sysroot"
3885             add_ldflags --sysroot="$sysroot"
3886 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3887             add_cppflags -isysroot "$sysroot"
3888             add_ldflags -isysroot "$sysroot"
3889         ;;
3890         tms470)
3891             add_cppflags -I"$sysinclude"
3892             add_ldflags  --sysroot="$sysroot"
3893         ;;
3894     esac
3895 fi
3896
3897 if test "$cpu" = host; then
3898     enabled cross_compile &&
3899         die "--cpu=host makes no sense when cross-compiling."
3900
3901     case "$cc_type" in
3902         gcc|llvm_gcc)
3903             check_native(){
3904                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3905                 sed -n "/cc1.*$1=/{
3906                             s/.*$1=\\([^ ]*\\).*/\\1/
3907                             p
3908                             q
3909                         }" $TMPE
3910             }
3911             cpu=$(check_native -march || check_native -mcpu)
3912         ;;
3913     esac
3914
3915     test "${cpu:-host}" = host &&
3916         die "--cpu=host not supported with compiler $cc"
3917 fi
3918
3919 # Deal with common $arch aliases
3920 case "$arch" in
3921     aarch64|arm64)
3922         arch="aarch64"
3923     ;;
3924     arm*|iPad*|iPhone*)
3925         arch="arm"
3926     ;;
3927     mips*|IP*)
3928         arch="mips"
3929     ;;
3930     parisc*|hppa*)
3931         arch="parisc"
3932     ;;
3933     "Power Macintosh"|ppc*|powerpc*)
3934         arch="ppc"
3935     ;;
3936     s390|s390x)
3937         arch="s390"
3938     ;;
3939     sh4|sh)
3940         arch="sh4"
3941     ;;
3942     sun4u|sparc*)
3943         arch="sparc"
3944     ;;
3945     tilegx|tile-gx)
3946         arch="tilegx"
3947     ;;
3948     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3949         arch="x86"
3950     ;;
3951 esac
3952
3953 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3954 enable $arch
3955
3956 # Add processor-specific flags
3957 if enabled aarch64; then
3958
3959     case $cpu in
3960         armv*)
3961             cpuflags="-march=$cpu"
3962         ;;
3963         *)
3964             cpuflags="-mcpu=$cpu"
3965         ;;
3966     esac
3967
3968 elif enabled alpha; then
3969
3970     cpuflags="-mcpu=$cpu"
3971
3972 elif enabled arm; then
3973
3974     check_arm_arch() {
3975         check_cpp_condition stddef.h \
3976             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3977             $cpuflags
3978     }
3979
3980     probe_arm_arch() {
3981         if   check_arm_arch 4;        then echo armv4;
3982         elif check_arm_arch 4T;       then echo armv4t;
3983         elif check_arm_arch 5;        then echo armv5;
3984         elif check_arm_arch 5E;       then echo armv5e;
3985         elif check_arm_arch 5T;       then echo armv5t;
3986         elif check_arm_arch 5TE;      then echo armv5te;
3987         elif check_arm_arch 5TEJ;     then echo armv5te;
3988         elif check_arm_arch 6;        then echo armv6;
3989         elif check_arm_arch 6J;       then echo armv6j;
3990         elif check_arm_arch 6K;       then echo armv6k;
3991         elif check_arm_arch 6Z;       then echo armv6z;
3992         elif check_arm_arch 6ZK;      then echo armv6zk;
3993         elif check_arm_arch 6T2;      then echo armv6t2;
3994         elif check_arm_arch 7;        then echo armv7;
3995         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3996         elif check_arm_arch 7S;       then echo armv7-a;
3997         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3998         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3999         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4000         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4001         fi
4002     }
4003
4004     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4005
4006     case $cpu in
4007         armv*)
4008             cpuflags="-march=$cpu"
4009             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4010         ;;
4011         *)
4012             cpuflags="-mcpu=$cpu"
4013             case $cpu in
4014                 cortex-a*)                               subarch=armv7a  ;;
4015                 cortex-r*)                               subarch=armv7r  ;;
4016                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4017                 arm11*)                                  subarch=armv6   ;;
4018                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4019                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4020                 *)                             subarch=$(probe_arm_arch) ;;
4021             esac
4022         ;;
4023     esac
4024
4025     case "$subarch" in
4026         armv5t*)    enable fast_clz                ;;
4027         armv[6-8]*)
4028             enable fast_clz
4029             disabled fast_unaligned || enable fast_unaligned
4030             ;;
4031     esac
4032
4033 elif enabled avr32; then
4034
4035     case $cpu in
4036         ap7[02]0[0-2])
4037             subarch="avr32_ap"
4038             cpuflags="-mpart=$cpu"
4039         ;;
4040         ap)
4041             subarch="avr32_ap"
4042             cpuflags="-march=$cpu"
4043         ;;
4044         uc3[ab]*)
4045             subarch="avr32_uc"
4046             cpuflags="-mcpu=$cpu"
4047         ;;
4048         uc)
4049             subarch="avr32_uc"
4050             cpuflags="-march=$cpu"
4051         ;;
4052     esac
4053
4054 elif enabled bfin; then
4055
4056     cpuflags="-mcpu=$cpu"
4057
4058 elif enabled mips; then
4059
4060     cpuflags="-march=$cpu"
4061
4062     case $cpu in
4063         24kc)
4064             disable mips32r5
4065             disable mips64r6
4066             disable mipsfpu
4067             disable mipsdspr1
4068             disable mipsdspr2
4069             disable msa
4070         ;;
4071         24kf*)
4072             disable mips32r5
4073             disable mips64r6
4074             disable mipsdspr1
4075             disable mipsdspr2
4076             disable msa
4077         ;;
4078         24kec|34kc|1004kc)
4079             disable mips32r5
4080             disable mips64r6
4081             disable mipsfpu
4082             disable mipsdspr2
4083             disable msa
4084         ;;
4085         24kef*|34kf*|1004kf*)
4086             disable mips32r5
4087             disable mips64r6
4088             disable mipsdspr2
4089             disable msa
4090         ;;
4091         74kc)
4092             disable mips32r5
4093             disable mips64r6
4094             disable mipsfpu
4095             disable msa
4096         ;;
4097         74kf)
4098             disable mips32r5
4099             disable mips64r6
4100             disable msa
4101         ;;
4102         p5600)
4103             disable mips64r6
4104             disable mipsdspr1
4105             disable mipsdspr2
4106
4107             check_cflags "-mtune=p5600"
4108         ;;
4109         i6400)
4110             disable mips32r5
4111             disable mipsdspr1
4112             disable mipsdspr2
4113             disable mipsfpu
4114
4115             check_cflags "-mtune=i6400 -mabi=64"
4116             check_ldflags "-mabi=64"
4117         ;;
4118         loongson*)
4119             disable mipsfpu
4120             disable mips32r2
4121             disable mips32r5
4122             disable mips64r6
4123             disable mipsdspr1
4124             disable mipsdspr2
4125             disable msa
4126             enable local_aligned_8 local_aligned_16 local_aligned_32
4127             enable simd_align_16
4128             enable fast_64bit
4129             enable fast_clz
4130             enable fast_cmov
4131             enable fast_unaligned
4132             disable aligned_stack
4133             case $cpu in
4134                 loongson3*)
4135                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4136                 ;;
4137                 loongson2e)
4138                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4139                 ;;
4140                 loongson2f)
4141                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4142                 ;;
4143             esac
4144         ;;
4145         generic)
4146             disable mips32r5
4147             disable mips64r6
4148             disable msa
4149         ;;
4150         *)
4151             disable mipsfpu
4152             disable mips32r2
4153             disable mips32r5
4154             disable mips64r6
4155             disable mipsdspr1
4156             disable mipsdspr2
4157             disable msa
4158         ;;
4159     esac
4160
4161 elif enabled ppc; then
4162
4163     disable ldbrx
4164
4165     case $(tolower $cpu) in
4166         601|ppc601|powerpc601)
4167             cpuflags="-mcpu=601"
4168             disable altivec
4169         ;;
4170         603*|ppc603*|powerpc603*)
4171             cpuflags="-mcpu=603"
4172             disable altivec
4173         ;;
4174         604*|ppc604*|powerpc604*)
4175             cpuflags="-mcpu=604"
4176             disable altivec
4177         ;;
4178         g3|75*|ppc75*|powerpc75*)
4179             cpuflags="-mcpu=750"
4180             disable altivec
4181         ;;
4182         g4|745*|ppc745*|powerpc745*)
4183             cpuflags="-mcpu=7450"
4184             disable vsx
4185         ;;
4186         74*|ppc74*|powerpc74*)
4187             cpuflags="-mcpu=7400"
4188             disable vsx
4189         ;;
4190         g5|970|ppc970|powerpc970)
4191             cpuflags="-mcpu=970"
4192             disable vsx
4193         ;;
4194         power[3-6]*)
4195             cpuflags="-mcpu=$cpu"
4196             disable vsx
4197         ;;
4198         power[7-8]*)
4199             cpuflags="-mcpu=$cpu"
4200         ;;
4201         cell)
4202             cpuflags="-mcpu=cell"
4203             enable ldbrx
4204             disable vsx
4205         ;;
4206         e500mc)
4207             cpuflags="-mcpu=e500mc"
4208             disable altivec
4209         ;;
4210         e500v2)
4211             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4212             disable altivec
4213             disable dcbzl
4214         ;;
4215         e500)
4216             cpuflags="-mcpu=8540 -mhard-float"
4217             disable altivec
4218             disable dcbzl
4219         ;;
4220     esac
4221
4222 elif enabled sparc; then
4223
4224     case $cpu in
4225         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4226             cpuflags="-mcpu=$cpu"
4227         ;;
4228         ultrasparc*|niagara[234])
4229             cpuflags="-mcpu=$cpu"
4230         ;;
4231     esac
4232
4233 elif enabled x86; then
4234
4235     case $cpu in
4236         i[345]86|pentium)
4237             cpuflags="-march=$cpu"
4238             disable i686
4239             disable mmx
4240         ;;
4241         # targets that do NOT support nopl and conditional mov (cmov)
4242         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4243             cpuflags="-march=$cpu"
4244             disable i686
4245         ;;
4246         # targets that do support nopl and conditional mov (cmov)
4247         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4248         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4249             cpuflags="-march=$cpu"
4250             enable i686
4251             enable fast_cmov
4252         ;;
4253         # targets that do support conditional mov but on which it's slow
4254         pentium4|pentium4m|prescott|nocona)
4255             cpuflags="-march=$cpu"
4256             enable i686
4257             disable fast_cmov
4258         ;;
4259     esac
4260
4261 fi
4262
4263 if [ "$cpu" != generic ]; then
4264     add_cflags  $cpuflags
4265     add_asflags $cpuflags
4266     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4267 fi
4268
4269 # compiler sanity check
4270 check_exec <<EOF
4271 int main(void){ return 0; }
4272 EOF
4273 if test "$?" != 0; then
4274     echo "$cc is unable to create an executable file."
4275     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4276         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4277         echo "Only do this if you know what cross compiling means."
4278     fi
4279     die "C compiler test failed."
4280 fi
4281
4282 add_cppflags -D_ISOC99_SOURCE
4283 add_cxxflags -D__STDC_CONSTANT_MACROS
4284 check_cflags -std=c99
4285 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4286 #include <stdlib.h>
4287 EOF
4288 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4289 #include <stdlib.h>
4290 EOF
4291
4292 add_host_cppflags -D_ISOC99_SOURCE
4293 check_host_cflags -std=c99
4294 check_host_cflags -Wall
4295 check_host_cflags -O3
4296
4297 check_64bit(){
4298     arch32=$1
4299     arch64=$2
4300     expr=$3
4301     check_code cc "" "int test[2*($expr) - 1]" &&
4302         subarch=$arch64 || subarch=$arch32
4303 }
4304
4305 case "$arch" in
4306     aarch64|alpha|ia64)
4307         spic=$shared
4308     ;;
4309     mips)
4310         check_64bit mips mips64 '_MIPS_SIM > 1'
4311         spic=$shared
4312     ;;
4313     parisc)
4314         check_64bit parisc parisc64 'sizeof(void *) > 4'
4315         spic=$shared
4316     ;;
4317     ppc)
4318         check_64bit ppc ppc64 'sizeof(void *) > 4'
4319         spic=$shared
4320     ;;
4321     s390)
4322         check_64bit s390 s390x 'sizeof(void *) > 4'
4323         spic=$shared
4324     ;;
4325     sparc)
4326         check_64bit sparc sparc64 'sizeof(void *) > 4'
4327         spic=$shared
4328     ;;
4329     x86)
4330         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4331         # Treat x32 as x64 for now. Note it also needs spic=$shared
4332         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4333             subarch=x86_64
4334         if test "$subarch" = "x86_64"; then
4335             spic=$shared
4336         fi
4337     ;;
4338     ppc)
4339         check_cc <<EOF && subarch="ppc64"
4340         int test[(int)sizeof(char*) - 7];
4341 EOF
4342     ;;
4343 esac
4344
4345 enable $subarch
4346 enabled spic && enable_weak pic
4347
4348 # OS specific
4349 case $target_os in
4350     aix)
4351         SHFLAGS=-shared
4352         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4353         enabled shared && add_ldflags -Wl,-brtl
4354         ;;
4355     android)
4356         disable symver
4357         enable section_data_rel_ro
4358         SLIB_INSTALL_NAME='$(SLIBNAME)'
4359         SLIB_INSTALL_LINKS=
4360         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4361         ;;
4362     haiku)
4363         prefix_default="/boot/common"
4364         network_extralibs="-lnetwork"
4365         host_libs=
4366         ;;
4367     sunos)
4368         SHFLAGS='-shared -Wl,-h,$$(@F)'
4369         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4370         network_extralibs="-lsocket -lnsl"
4371         add_cppflags -D__EXTENSIONS__
4372         # When using suncc to build, the Solaris linker will mark
4373         # an executable with each instruction set encountered by
4374         # the Solaris assembler.  As our libraries contain their own
4375         # guards for processor-specific code, instead suppress
4376         # generation of the HWCAPS ELF section on Solaris x86 only.
4377         enabled_all suncc x86 &&
4378             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4379             add_ldflags -Wl,-M,mapfile
4380         nm_default='nm -P -g'
4381         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4382         ;;
4383     netbsd)
4384         disable symver
4385         oss_indev_extralibs="-lossaudio"
4386         oss_outdev_extralibs="-lossaudio"
4387         enabled gcc || check_ldflags -Wl,-zmuldefs
4388         ;;
4389     openbsd|bitrig)
4390         disable symver
4391         SHFLAGS='-shared'
4392         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4393         SLIB_INSTALL_LINKS=
4394         oss_indev_extralibs="-lossaudio"
4395         oss_outdev_extralibs="-lossaudio"
4396         ;;
4397     dragonfly)
4398         disable symver
4399         ;;
4400     freebsd)
4401         ;;
4402     bsd/os)
4403         add_extralibs -lpoll -lgnugetopt
4404         strip="strip -d"
4405         ;;
4406     darwin)
4407         enabled ppc && add_asflags -force_cpusubtype_ALL
4408         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4409         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4410         strip="${strip} -x"
4411         add_ldflags -Wl,-dynamic,-search_paths_first
4412         SLIBSUF=".dylib"
4413         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4414         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4415         objformat="macho"
4416         enabled x86_64 && objformat="macho64"
4417         enabled_any pic shared x86_64 ||
4418             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4419         ;;
4420     mingw32*|mingw64*)
4421         if test $target_os = "mingw32ce"; then
4422             disable network
4423         else
4424             target_os=mingw32
4425         fi
4426         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4427         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4428         LIBTARGET=i386
4429         if enabled x86_64; then
4430             LIBTARGET="i386:x86-64"
4431         elif enabled arm; then
4432             LIBTARGET=arm-wince
4433         fi
4434         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4435         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4436         shlibdir_default="$bindir_default"
4437         SLIBPREF=""
4438         SLIBSUF=".dll"
4439         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4440         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4441         dlltool="${cross_prefix}dlltool"
4442         if check_cmd lib.exe -list; then
4443             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4444             if enabled x86_64; then
4445                 LIBTARGET=x64
4446             fi
4447         elif check_cmd $dlltool --version; then
4448             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4449         fi
4450         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4451         SLIB_INSTALL_LINKS=
4452         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4453         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4454         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4455         objformat="win32"
4456         ranlib=:
4457         enable dos_paths
4458         check_ldflags -Wl,--nxcompat,--dynamicbase
4459         # Lets work around some stupidity in binutils.
4460         # ld will strip relocations from executables even though we need them
4461         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4462         # however ld then forgets what the entry point should be (oops) so we
4463         # have to manually (re)set it.
4464         if enabled x86_32; then
4465             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4466         elif enabled x86_64; then
4467             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4468             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4469             # Set image base >4GB for extra entropy with HEASLR
4470             add_ldexeflags -Wl,--image-base,0x140000000
4471             append SHFLAGS -Wl,--image-base,0x180000000
4472         fi
4473         ;;
4474     win32|win64)
4475         disable symver
4476         if enabled shared; then
4477             # Link to the import library instead of the normal static library
4478             # for shared libs.
4479             LD_LIB='%.lib'
4480             # Cannot build both shared and static libs with MSVC or icl.
4481             disable static
4482         fi
4483         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4484         shlibdir_default="$bindir_default"
4485         SLIBPREF=""
4486         SLIBSUF=".dll"
4487         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4488         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4489         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4490         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4491         SLIB_INSTALL_LINKS=
4492         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4493         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4494         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4495         objformat="win32"
4496         ranlib=:
4497         enable dos_paths
4498         ;;
4499     cygwin*)
4500         target_os=cygwin
4501         shlibdir_default="$bindir_default"
4502         SLIBPREF="cyg"
4503         SLIBSUF=".dll"
4504         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4505         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4506         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4507         SLIB_INSTALL_LINKS=
4508         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4509         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4510         objformat="win32"
4511         enable dos_paths
4512         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4513         ;;
4514     *-dos|freedos|opendos)
4515         network_extralibs="-lsocket"
4516         objformat="coff"
4517         enable dos_paths
4518         add_cppflags -U__STRICT_ANSI__
4519         ;;
4520     linux)
4521         enable dv1394
4522         enable section_data_rel_ro
4523         ;;
4524     irix*)
4525         target_os=irix
4526         ranlib="echo ignoring ranlib"
4527         ;;
4528     os/2*)
4529         strip="lxlite -CS"
4530         ln_s="cp -f"
4531         objformat="aout"
4532         add_cppflags -D_GNU_SOURCE
4533         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4534         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4535         LIBSUF="_s.a"
4536         SLIBPREF=""
4537         SLIBSUF=".dll"
4538         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4539         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4540         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4541             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4542             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4543             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4544             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4545         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4546             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4547         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4548         enable dos_paths
4549         enable_weak os2threads
4550         ;;
4551     gnu/kfreebsd)
4552         add_cppflags -D_BSD_SOURCE
4553         ;;
4554     gnu)
4555         ;;
4556     qnx)
4557         add_cppflags -D_QNX_SOURCE
4558         network_extralibs="-lsocket"
4559         ;;
4560     symbian)
4561         SLIBSUF=".dll"
4562         enable dos_paths
4563         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4564         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4565         add_ldflags -Wl,--target1-abs,--no-undefined \
4566                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4567                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4568         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4569                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4570                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4571         ;;
4572     osf1)
4573         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4574         ;;
4575     minix)
4576         ;;
4577     plan9)
4578         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4579                      -D_REENTRANT_SOURCE        \
4580                      -D_RESEARCH_SOURCE         \
4581                      -DFD_SETSIZE=96            \
4582                      -DHAVE_SOCK_OPTS
4583         add_compat strtod.o strtod=avpriv_strtod
4584         network_extralibs='-lbsd'
4585         exeobjs=compat/plan9/main.o
4586         disable ffserver
4587         cp_f='cp'
4588         ;;
4589     none)
4590         ;;
4591     *)
4592         die "Unknown OS '$target_os'."
4593         ;;
4594 esac
4595
4596 # determine libc flavour
4597
4598 probe_libc(){
4599     pfx=$1
4600     pfx_no_=${pfx%_}
4601     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4602     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4603         eval ${pfx}libc_type=uclibc
4604         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4605     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4606         eval ${pfx}libc_type=glibc
4607         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4608     # MinGW headers can be installed on Cygwin, so check for newlib first.
4609     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4610         eval ${pfx}libc_type=newlib
4611         add_${pfx}cppflags -U__STRICT_ANSI__
4612     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4613     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4614         eval ${pfx}libc_type=mingw64
4615         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4616             add_compat msvcrt/snprintf.o
4617             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4618         fi
4619         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4620         eval test \$${pfx_no_}cc_type = "gcc" &&
4621             add_${pfx}cppflags -D__printf__=__gnu_printf__
4622     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4623          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4624         eval ${pfx}libc_type=mingw32
4625         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4626             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4627             die "ERROR: MinGW32 runtime version must be >= 3.15."
4628         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4629         eval test \$${pfx_no_}cc_type = "gcc" &&
4630             add_${pfx}cppflags -D__printf__=__gnu_printf__
4631     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4632         eval ${pfx}libc_type=msvcrt
4633         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4634             if [ "$pfx" = host_ ]; then
4635                 add_host_cppflags -Dsnprintf=_snprintf
4636             else
4637                 add_compat strtod.o strtod=avpriv_strtod
4638                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4639                                              _snprintf=avpriv_snprintf  \
4640                                              vsnprintf=avpriv_vsnprintf
4641             fi
4642         fi
4643         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4644         # 0x601 by default unless something else is set by the user.
4645         # This can easily lead to us detecting functions only present
4646         # in such new versions and producing binaries requiring windows 7.0.
4647         # Therefore explicitly set the default to XP unless the user has
4648         # set something else on the command line.
4649         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4650         # family. For these cases, configure is free to use any functions
4651         # found in the SDK headers by default. (Alternatively, we could force
4652         # _WIN32_WINNT to 0x0602 in that case.)
4653         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4654             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4655 #ifdef WINAPI_FAMILY
4656 #include <winapifamily.h>
4657 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4658 #error not desktop
4659 #endif
4660 #endif
4661 EOF
4662     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4663         eval ${pfx}libc_type=klibc
4664     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4665         eval ${pfx}libc_type=bionic
4666     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4667         eval ${pfx}libc_type=solaris
4668         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4669     fi
4670     check_${pfx}cc <<EOF
4671 #include <time.h>
4672 void *v = localtime_r;
4673 EOF
4674 test "$?" != 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
4675 #include <time.h>
4676 void *v = localtime_r;
4677 EOF
4678
4679 }
4680
4681 probe_libc
4682 test -n "$libc_type" && enable libc_$libc_type
4683 probe_libc host_
4684 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4685
4686 case $libc_type in
4687     bionic)
4688         add_compat strtod.o strtod=avpriv_strtod
4689         ;;
4690 esac
4691
4692 # hacks for compiler/libc/os combinations
4693
4694 if enabled_all tms470 libc_glibc; then
4695     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4696     add_cppflags -D__USER_LABEL_PREFIX__=
4697     add_cppflags -D__builtin_memset=memset
4698     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4699     add_cflags   -pds=48    # incompatible redefinition of macro
4700 fi
4701
4702 if enabled_all ccc libc_glibc; then
4703     add_ldflags -Wl,-z,now  # calls to libots crash without this
4704 fi
4705
4706 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4707     add_cppflags '-I\$(SRC_PATH)/compat/float'
4708
4709 esc(){
4710     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4711 }
4712
4713 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4714
4715 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4716
4717 set_default libdir
4718 : ${shlibdir_default:="$libdir"}
4719 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4720
4721 set_default $PATHS_LIST
4722 set_default nm
4723
4724 # we need to build at least one lib type
4725 if ! enabled_any static shared; then
4726     cat <<EOF
4727 At least one library type must be built.
4728 Specify --enable-static to build the static libraries or --enable-shared to
4729 build the shared libraries as well. To only build the shared libraries specify
4730 --disable-static in addition to --enable-shared.
4731 EOF
4732     exit 1;
4733 fi
4734
4735 die_license_disabled() {
4736     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4737 }
4738
4739 die_license_disabled_gpl() {
4740     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4741 }
4742
4743 die_license_disabled gpl frei0r
4744 die_license_disabled gpl libcdio
4745 die_license_disabled gpl librubberband
4746 die_license_disabled gpl libsmbclient
4747 die_license_disabled gpl libutvideo
4748 die_license_disabled gpl libvidstab
4749 die_license_disabled gpl libx264
4750 die_license_disabled gpl libx265
4751 die_license_disabled gpl libxavs
4752 die_license_disabled gpl libxvid
4753 die_license_disabled gpl libzvbi
4754 die_license_disabled gpl x11grab
4755
4756 die_license_disabled nonfree libaacplus
4757 die_license_disabled nonfree libfaac
4758 die_license_disabled nonfree nvenc
4759 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4760 enabled gpl && die_license_disabled_gpl nonfree openssl
4761
4762 die_license_disabled version3 libopencore_amrnb
4763 die_license_disabled version3 libopencore_amrwb
4764 die_license_disabled version3 libsmbclient
4765 die_license_disabled version3 libvo_aacenc
4766 die_license_disabled version3 libvo_amrwbenc
4767
4768 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4769
4770 disabled optimizations || check_cflags -fomit-frame-pointer
4771
4772 enable_weak_pic() {
4773     disabled pic && return
4774     enable pic
4775     add_cppflags -DPIC
4776     case "$target_os" in
4777     mingw*|cygwin*)
4778         ;;
4779     *)
4780         add_cflags -fPIC
4781         ;;
4782     esac
4783     add_asflags  -fPIC
4784 }
4785
4786 enabled pic && enable_weak_pic
4787
4788 check_cc <<EOF || die "Symbol mangling check failed."
4789 int ff_extern;
4790 EOF
4791 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4792 extern_prefix=${sym%%ff_extern*}
4793
4794 check_cc <<EOF && enable_weak inline_asm
4795 void foo(void) { __asm__ volatile ("" ::); }
4796 EOF
4797
4798 _restrict=
4799 for restrict_keyword in restrict __restrict__ __restrict; do
4800     check_cc <<EOF && _restrict=$restrict_keyword && break
4801 void foo(char * $restrict_keyword p);
4802 EOF
4803 done
4804
4805 check_cc <<EOF && enable pragma_deprecated
4806 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4807 EOF
4808
4809 check_cc <<EOF && enable attribute_packed
4810 struct { int x; } __attribute__((packed)) x;
4811 EOF
4812
4813 check_cc <<EOF && enable attribute_may_alias
4814 union { int x; } __attribute__((may_alias)) x;
4815 EOF
4816
4817 check_cc <<EOF || die "endian test failed"
4818 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4819 EOF
4820 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4821
4822 if ! enabled ppc64 || enabled bigendian; then
4823     disable vsx
4824 fi
4825
4826 check_gas() {
4827     log "check_gas using '$as' as AS"
4828     # :vararg is used on aarch64, arm and ppc altivec
4829     check_as <<EOF || return 1
4830 .macro m n, y:vararg=0
4831 \n: .int \y
4832 .endm
4833 m x
4834 EOF
4835     # .altmacro is only used in arm asm
4836     ! enabled arm || check_as <<EOF || return 1
4837 .altmacro
4838 EOF
4839     enable gnu_as
4840     return 0
4841 }
4842
4843 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4844     nogas=:
4845     enabled_any arm aarch64 && nogas=die
4846     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4847     as_noop=-v
4848
4849     case $as_type in
4850         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4851         gcc)  gaspp_as_type=gas ;;
4852         *)    gaspp_as_type=$as_type ;;
4853     esac
4854
4855     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4856
4857     test "${as#*gas-preprocessor.pl}" != "$as" ||
4858     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4859         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4860
4861     if ! check_gas ; then
4862         as=${gas:=$as}
4863         check_gas || \
4864             $nogas "GNU assembler not found, install/update gas-preprocessor"
4865     fi
4866
4867     check_as <<EOF && enable as_func
4868 .func test
4869 .endfunc
4870 EOF
4871 fi
4872
4873 check_inline_asm inline_asm_labels '"1:\n"'
4874
4875 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4876
4877 if enabled aarch64; then
4878     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4879     # internal assembler in clang 3.3 does not support this instruction
4880     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4881     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4882
4883     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4884
4885 elif enabled alpha; then
4886
4887     check_cflags -mieee
4888
4889 elif enabled arm; then
4890
4891     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4892
4893     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4894 float func(float a, float b){ return a+b; }
4895 EOF
4896
4897     enabled thumb && check_cflags -mthumb || check_cflags -marm
4898
4899     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4900         enable vfp_args
4901     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4902         enable vfp_args
4903     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4904         case "${cross_prefix:-$cc}" in
4905             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4906             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4907 __asm__ (".eabi_attribute 28, 1");
4908 int main(void) { return 0; }
4909 EOF
4910         esac
4911         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4912     fi
4913
4914     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4915     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4916     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4917     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4918     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4919     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4920     enabled setend  && check_insn setend  'setend be'
4921
4922     [ $target_os = linux ] || [ $target_os = android ] ||
4923         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4924             $ARCH_EXT_LIST_ARM
4925
4926     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4927
4928     check_as <<EOF && enable as_dn_directive
4929 ra .dn d0.i16
4930 .unreq ra
4931 EOF
4932
4933     # llvm's integrated assembler supports .object_arch from llvm 3.5
4934     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4935 .object_arch armv4
4936 EOF
4937
4938     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4939
4940 elif enabled mips; then
4941
4942     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
4943     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
4944     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
4945
4946     # Enable minimum ISA based on selected options
4947     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then
4948         add_cflags "-mips64r2"
4949         add_asflags "-mips64r2"
4950     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
4951         add_cflags "-mips64"
4952         add_asflags "-mips64"
4953     elif enabled mipsdspr1 || enabled mipsdspr2; then
4954         add_cflags "-mips32r2 -mfp32"
4955         add_asflags "-mips32r2 -mfp32"
4956     elif enabled mips32r5 || enabled mips64r6; then
4957         check_cflags "-mfp64"
4958         check_ldflags "-mfp64"
4959     fi
4960
4961     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&
4962      check_ldflags "-mips32r5" &&
4963      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'
4964     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&
4965      check_ldflags "-mips64r6" &&
4966      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'
4967     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4968      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4969     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4970      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4971     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4972      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4973     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
4974      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
4975
4976     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"
4977     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"
4978     enabled msa && add_asflags "-mmsa"
4979
4980 elif enabled parisc; then
4981
4982     if enabled gcc; then
4983         case $($cc -dumpversion) in
4984             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4985         esac
4986     fi
4987
4988 elif enabled ppc; then
4989
4990     enable local_aligned_8 local_aligned_16 local_aligned_32
4991
4992     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4993     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4994     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4995     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4996
4997     # AltiVec flags: The FSF version of GCC differs from the Apple version
4998     if enabled altivec; then
4999         check_cflags -maltivec -mabi=altivec &&
5000         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5001         check_cflags -faltivec
5002
5003         # check if our compiler supports Motorola AltiVec C API
5004         check_cc <<EOF || disable altivec
5005 $inc_altivec_h
5006 int main(void) {
5007     vector signed int v1 = (vector signed int) { 0 };
5008     vector signed int v2 = (vector signed int) { 1 };
5009     v1 = vec_add(v1, v2);
5010     return 0;
5011 }
5012 EOF
5013
5014         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5015     fi
5016
5017     if enabled vsx; then
5018         check_cflags -mvsx &&
5019         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5020     fi
5021
5022     if enabled power8; then
5023         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5024     fi
5025
5026 elif enabled x86; then
5027
5028     check_builtin rdtsc    intrin.h   "__rdtsc()"
5029     check_builtin mm_empty mmintrin.h "_mm_empty()"
5030
5031     enable local_aligned_8 local_aligned_16 local_aligned_32
5032
5033     # check whether EBP is available on x86
5034     # As 'i' is stored on the stack, this program will crash
5035     # if the base pointer is used to access it because the
5036     # base pointer is cleared in the inline assembly code.
5037     check_exec_crash <<EOF && enable ebp_available
5038 volatile int i=0;
5039 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5040 return i;
5041 EOF
5042
5043     # check whether EBX is available on x86
5044     check_inline_asm ebx_available '""::"b"(0)' &&
5045         check_inline_asm ebx_available '"":::"%ebx"'
5046
5047     # check whether xmm clobbers are supported
5048     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5049
5050     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5051         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5052
5053     # check whether binutils is new enough to compile SSSE3/MMXEXT
5054     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5055     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5056
5057     if ! disabled_any asm mmx yasm; then
5058         if check_cmd $yasmexe --version; then
5059             enabled x86_64 && yasm_extra="-m amd64"
5060             yasm_debug="-g dwarf2"
5061         elif check_cmd nasm -v; then
5062             yasmexe=nasm
5063             yasm_debug="-g -F dwarf"
5064             if enabled x86_64; then
5065                 case "$objformat" in
5066                     elf)   objformat=elf64 ;;
5067                     win32) objformat=win64 ;;
5068                 esac
5069             fi
5070         fi
5071
5072         YASMFLAGS="-f $objformat $yasm_extra"
5073         enabled pic               && append YASMFLAGS "-DPIC"
5074         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5075         case "$objformat" in
5076             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5077         esac
5078
5079         check_yasm "movbe ecx, [5]" && enable yasm ||
5080             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5081         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5082         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5083         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5084         check_yasm "CPU amdnop" || disable cpunop
5085     fi
5086
5087     case "$cpu" in
5088         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5089             disable fast_clz
5090         ;;
5091     esac
5092
5093 fi
5094
5095 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5096
5097 check_ldflags -Wl,--as-needed
5098 check_ldflags -Wl,-z,noexecstack
5099
5100 if check_func dlopen; then
5101     ldl=
5102 elif check_func dlopen -ldl; then
5103     ldl=-ldl
5104 fi
5105
5106 frei0r_filter_extralibs='$ldl'
5107 frei0r_src_filter_extralibs='$ldl'
5108 ladspa_filter_extralibs='$ldl'
5109 nvenc_encoder_extralibs='$ldl'
5110
5111 if ! disabled network; then
5112     check_func getaddrinfo $network_extralibs
5113     check_func inet_aton $network_extralibs
5114
5115     check_type netdb.h "struct addrinfo"
5116     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5117     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5118     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5119     check_type poll.h "struct pollfd"
5120     check_type netinet/sctp.h "struct sctp_event_subscribe"
5121     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5122     check_type netinet/in.h "struct sockaddr_in6"
5123     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5124     check_type "sys/types.h sys/socket.h" socklen_t
5125
5126     # Prefer arpa/inet.h over winsock2
5127     if check_header arpa/inet.h ; then
5128         check_func closesocket
5129     elif check_header winsock2.h ; then
5130         check_func_headers winsock2.h closesocket -lws2 &&
5131             network_extralibs="-lws2" ||
5132         { check_func_headers winsock2.h closesocket -lws2_32 &&
5133             network_extralibs="-lws2_32"; } || disable winsock2_h network
5134         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5135
5136         check_type ws2tcpip.h socklen_t
5137         check_type ws2tcpip.h "struct addrinfo"
5138         check_type ws2tcpip.h "struct group_source_req"
5139         check_type ws2tcpip.h "struct ip_mreq_source"
5140         check_type ws2tcpip.h "struct ipv6_mreq"
5141         check_type winsock2.h "struct pollfd"
5142         check_struct winsock2.h "struct sockaddr" sa_len
5143         check_type ws2tcpip.h "struct sockaddr_in6"
5144         check_type ws2tcpip.h "struct sockaddr_storage"
5145     else
5146         disable network
5147     fi
5148 fi
5149
5150 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5151 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5152 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5153 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5154 check_builtin sarestart signal.h "SA_RESTART"
5155 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5156 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5157 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5158
5159 case "$custom_allocator" in
5160     jemalloc)
5161         # jemalloc by default does not use a prefix
5162         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5163     ;;
5164     tcmalloc)
5165         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5166         malloc_prefix=tc_
5167     ;;
5168 esac
5169
5170 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5171 check_func  ${malloc_prefix}memalign            && enable memalign
5172 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5173
5174 check_func  access
5175 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5176 check_func  fcntl
5177 check_func  fork
5178 check_func  gethrtime
5179 check_func  getopt
5180 check_func  getrusage
5181 check_func  gettimeofday
5182 check_func  isatty
5183 check_func  mach_absolute_time
5184 check_func  mkstemp
5185 check_func  mmap
5186 check_func  mprotect
5187 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5188 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5189 check_func  sched_getaffinity
5190 check_func  setrlimit
5191 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5192 check_func  strerror_r
5193 check_func  sysconf
5194 check_func  sysctl
5195 check_func  usleep
5196
5197 check_func_headers conio.h kbhit
5198 check_func_headers io.h setmode
5199 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5200 check_func_headers stdlib.h getenv
5201 check_func_headers sys/stat.h lstat
5202
5203 check_func_headers windows.h CoTaskMemFree -lole32
5204 check_func_headers windows.h GetProcessAffinityMask
5205 check_func_headers windows.h GetProcessTimes
5206 check_func_headers windows.h GetSystemTimeAsFileTime
5207 check_func_headers windows.h MapViewOfFile
5208 check_func_headers windows.h PeekNamedPipe
5209 check_func_headers windows.h SetConsoleTextAttribute
5210 check_func_headers windows.h SetConsoleCtrlHandler
5211 check_func_headers windows.h Sleep
5212 check_func_headers windows.h VirtualAlloc
5213 check_struct windows.h "CONDITION_VARIABLE" Ptr
5214 check_func_headers glob.h glob
5215 enabled xlib &&
5216     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5217
5218 check_header direct.h
5219 check_header dirent.h
5220 check_header dlfcn.h
5221 check_header d3d11.h
5222 check_header dxva.h
5223 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5224 check_header io.h
5225 check_header libcrystalhd/libcrystalhd_if.h
5226 check_header mach/mach_time.h
5227 check_header malloc.h
5228 check_header net/udplite.h
5229 check_header poll.h
5230 check_header sys/mman.h
5231 check_header sys/param.h
5232 check_header sys/resource.h
5233 check_header sys/select.h
5234 check_header sys/time.h
5235 check_header sys/un.h
5236 check_header termios.h
5237 check_header unistd.h
5238 check_header valgrind/valgrind.h
5239 check_header vdpau/vdpau.h
5240 check_header vdpau/vdpau_x11.h
5241 check_header VideoDecodeAcceleration/VDADecoder.h
5242 check_header VideoToolbox/VideoToolbox.h
5243 check_header windows.h
5244 check_header X11/extensions/XvMClib.h
5245 check_header asm/types.h
5246
5247 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5248 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5249 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5250 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5251
5252 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5253
5254 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5255 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5256 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5257 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5258
5259 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5260
5261 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5262
5263 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5264
5265 if ! disabled w32threads && ! enabled pthreads; then
5266     check_func_headers "windows.h process.h" _beginthreadex &&
5267         enable w32threads || disable w32threads
5268     if ! enabled w32threads && enabled winrt; then
5269         check_func_headers "windows.h" CreateThread &&
5270             enable w32threads || disable w32threads
5271     fi
5272 fi
5273
5274 # check for some common methods of building with pthread support
5275 # do this before the optional library checks as some of them require pthreads
5276 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5277     enable pthreads
5278     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5279         add_cflags -pthread
5280         add_extralibs -pthread
5281     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5282         add_cflags -pthreads
5283         add_extralibs -pthreads
5284     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5285         add_cflags -ldl -pthread
5286         add_extralibs -ldl -pthread
5287     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5288         add_extralibs -lpthreadGC2
5289     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5290         :
5291     elif ! check_func pthread_join && ! check_func pthread_create; then
5292         disable pthreads
5293     fi
5294     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5295 fi
5296
5297
5298 if enabled pthreads; then
5299   check_func pthread_cancel
5300 fi
5301
5302 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5303 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5304 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5305
5306 check_lib math.h sin -lm && LIBM="-lm"
5307 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5308
5309 atan2f_args=2
5310 copysign_args=2
5311 ldexpf_args=2
5312 powf_args=2
5313
5314 for func in $MATH_FUNCS; do
5315     eval check_mathfunc $func \${${func}_args:-1}
5316 done
5317
5318 # these are off by default, so fail if requested and not available
5319 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5320 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5321                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5322 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5323                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5324                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5325 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5326 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5327 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5328 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5329 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5330 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5331 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5332 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5333 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5334 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5335 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5336                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5337                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5338 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5339 enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&
5340                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding
5341 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5342 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5343                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5344                                  warn "using libfdk without pkg-config"; } }
5345 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"
5346 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5347 enabled fontconfig        && enable libfontconfig
5348 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5349 enabled libfreetype       && require_libfreetype
5350 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5351 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5352 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5353                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5354                                done || die "ERROR: libgsm not found"; }
5355 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5356 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
5357 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5358 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5359 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5360 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5361 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5362 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5363 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5364 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5365 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
5366                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5367                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5368                                die "ERROR: libopenjpeg not found"; }
5369 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5370 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5371 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5372 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5373 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5374 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5375 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5376 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5377                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5378 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5379 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5380 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5381 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5382 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5383     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5384     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5385 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5386 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5387 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5388                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5389                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5390 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5391 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5392 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5393 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5394 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5395 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5396
5397 enabled libvpx            && {
5398     enabled libvpx_vp8_decoder && {
5399         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5400             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5401                 die "ERROR: libvpx decoder version must be >=0.9.1";
5402     }
5403     enabled libvpx_vp8_encoder && {
5404         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5405             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5406                 die "ERROR: libvpx encoder version must be >=0.9.7";
5407     }
5408     enabled libvpx_vp9_decoder && {
5409         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5410             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5411                 disable libvpx_vp9_decoder;
5412     }
5413     enabled libvpx_vp9_encoder && {
5414         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5415             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5416                 disable libvpx_vp9_encoder;
5417     }
5418     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5419         die "libvpx enabled but no supported decoders found"
5420     fi
5421 }
5422
5423 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5424 enabled libwebp           && {
5425     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5426     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5427 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5428                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5429                                  warn "using libx264 without pkg-config"; } } &&
5430                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5431                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5432                              { check_cpp_condition x264.h "X264_MPEG2" &&
5433                                enable libx262; }
5434 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5435                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5436                                die "ERROR: libx265 version must be >= 57."; }
5437 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5438 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5439 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5440 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5441 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5442 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5443                                 { ! enabled cross_compile && {
5444                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5445                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5446                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5447                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5448                                die "ERROR: mmal not found"; }
5449 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5450                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5451                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5452                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5453 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5454                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5455                                die "ERROR: openal not found"; } &&
5456                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5457                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5458 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5459                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5460                                die "ERROR: opencl not found"; } &&
5461                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5462                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5463                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5464 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5465                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5466                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5467                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5468                                die "ERROR: opengl not found."
5469                              }
5470 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5471                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5472                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5473                                die "ERROR: openssl not found"; }
5474 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
5475
5476 if enabled gnutls; then
5477     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
5478     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
5479 fi
5480
5481 # libdc1394 check
5482 if enabled libdc1394; then
5483     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5484         enable libdc1394_2; } ||
5485     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5486         enable libdc1394_1; } ||
5487     die "ERROR: No version of libdc1394 found "
5488 fi
5489 if ! disabled sdl; then
5490     SDL_CONFIG="${cross_prefix}sdl-config"
5491     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5492         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5493         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5494         enable sdl
5495     else
5496         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5497             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5498             sdl_libs=$("${SDL_CONFIG}" --libs)
5499             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5500             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5501             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5502             enable sdl
5503         elif enabled sdl ; then
5504             die "ERROR: SDL not found"
5505         else
5506             disable sdl
5507         fi
5508     fi
5509     if test $target_os = "mingw32"; then
5510         sdl_libs="$sdl_libs -mconsole"
5511     fi
5512 fi
5513 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5514
5515 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5516     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5517     enable securetransport; }
5518
5519 disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&
5520                        enable schannel && add_extralibs -lSecur32; }
5521
5522 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5523 enabled makeinfo \
5524     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5525     && enable makeinfo_html || disable makeinfo_html
5526 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5527 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5528 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5529 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5530
5531 check_header linux/fb.h
5532 check_header linux/videodev.h
5533 check_header linux/videodev2.h
5534 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5535
5536 check_header sys/videoio.h
5537 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5538
5539 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5540 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5541 # w32api 3.12 had it defined wrong
5542 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5543
5544 check_type "dshow.h" IBaseFilter
5545
5546 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5547 { check_header dev/bktr/ioctl_meteor.h &&
5548   check_header dev/bktr/ioctl_bt848.h; } ||
5549 { check_header machine/ioctl_meteor.h &&
5550   check_header machine/ioctl_bt848.h; } ||
5551 { check_header dev/video/meteor/ioctl_meteor.h &&
5552   check_header dev/video/bktr/ioctl_bt848.h; } ||
5553 check_header dev/ic/bt8xx.h
5554
5555 check_header sndio.h
5556 if check_struct sys/soundcard.h audio_buf_info bytes; then
5557     enable_safe sys/soundcard.h
5558 else
5559     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5560     #include <sys/soundcard.h>
5561     audio_buf_info abc;
5562 EOF
5563 fi
5564 check_header soundcard.h
5565
5566 enabled_any alsa_indev alsa_outdev &&
5567     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5568
5569 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5570     check_func jack_port_get_latency_range -ljack
5571
5572 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5573
5574 if enabled libcdio; then
5575     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5576     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5577     die "ERROR: No usable libcdio/cdparanoia found"
5578 fi
5579
5580 enabled xlib &&
5581     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5582
5583 if ! disabled libxcb; then
5584     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5585         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5586     } && disable x11grab && enable libxcb
5587
5588 if enabled libxcb; then
5589     disabled libxcb_shm || {
5590         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5591             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5592         } && check_header sys/shm.h && enable libxcb_shm; }
5593
5594     disabled libxcb_xfixes || {
5595         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5596             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5597         } && enable libxcb_xfixes; }
5598
5599     disabled libxcb_shape || {
5600         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5601             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5602         } && enable libxcb_shape; }
5603
5604     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5605     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5606 fi
5607 fi
5608
5609 if enabled x11grab; then
5610     enabled xlib || die "ERROR: Xlib not found"
5611     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5612     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5613 fi
5614
5615 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5616
5617 enabled dxva2api_h &&
5618     check_cc <<EOF && enable dxva2api_cobj
5619 #define _WIN32_WINNT 0x0600
5620 #define COBJMACROS
5621 #include <windows.h>
5622 #include <d3d9.h>
5623 #include <dxva2api.h>
5624 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5625 EOF
5626
5627 enabled vaapi &&
5628     check_lib va/va.h vaInitialize -lva ||
5629     disable vaapi
5630
5631 enabled vaapi && enabled xlib &&
5632     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5633     enable vaapi_x11
5634
5635 enabled vdpau &&
5636     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5637     disable vdpau
5638
5639 enabled vdpau && enabled xlib &&
5640     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5641     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5642     enable vdpau_x11
5643
5644 # Funny iconv installations are not unusual, so check it after all flags have been set
5645 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5646
5647 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5648
5649 # add some useful compiler flags if supported
5650 check_cflags -Wdeclaration-after-statement
5651 check_cflags -Wall
5652 check_cflags -Wdisabled-optimization
5653 check_cflags -Wpointer-arith
5654 check_cflags -Wredundant-decls
5655 check_cflags -Wwrite-strings
5656 check_cflags -Wtype-limits
5657 check_cflags -Wundef
5658 check_cflags -Wmissing-prototypes
5659 check_cflags -Wno-pointer-to-int-cast
5660 check_cflags -Wstrict-prototypes
5661 check_cflags -Wempty-body
5662 enabled extra_warnings && check_cflags -Winline
5663
5664 check_disable_warning(){
5665     warning_flag=-W${1#-Wno-}
5666     test_cflags $warning_flag && add_cflags $1
5667 }
5668
5669 check_disable_warning -Wno-parentheses
5670 check_disable_warning -Wno-switch
5671 check_disable_warning -Wno-format-zero-length
5672 check_disable_warning -Wno-pointer-sign
5673
5674 # add some linker flags
5675 check_ldflags -Wl,--warn-common
5676 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5677 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5678 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5679 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5680
5681 # add some strip flags
5682 # -wN '..@*' is more selective than -x, but not available everywhere.
5683 check_stripflags -wN \'..@*\' || check_stripflags -x
5684
5685 enabled neon_clobber_test &&
5686     check_ldflags -Wl,--wrap,avcodec_open2              \
5687                   -Wl,--wrap,avcodec_decode_audio4      \
5688                   -Wl,--wrap,avcodec_decode_video2      \
5689                   -Wl,--wrap,avcodec_decode_subtitle2   \
5690                   -Wl,--wrap,avcodec_encode_audio2      \
5691                   -Wl,--wrap,avcodec_encode_video2      \
5692                   -Wl,--wrap,avcodec_encode_subtitle    \
5693                   -Wl,--wrap,swr_convert                \
5694                   -Wl,--wrap,avresample_convert ||
5695     disable neon_clobber_test
5696
5697 enabled xmm_clobber_test &&
5698     check_ldflags -Wl,--wrap,avcodec_open2              \
5699                   -Wl,--wrap,avcodec_decode_audio4      \
5700                   -Wl,--wrap,avcodec_decode_video2      \
5701                   -Wl,--wrap,avcodec_decode_subtitle2   \
5702                   -Wl,--wrap,avcodec_encode_audio2      \
5703                   -Wl,--wrap,avcodec_encode_video2      \
5704                   -Wl,--wrap,avcodec_encode_subtitle    \
5705                   -Wl,--wrap,swr_convert                \
5706                   -Wl,--wrap,avresample_convert         \
5707                   -Wl,--wrap,sws_scale ||
5708     disable xmm_clobber_test
5709
5710 echo "X { local: *; };" > $TMPV
5711 if test_ldflags -Wl,--version-script,$TMPV; then
5712     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5713 elif test_ldflags -Wl,-M,$TMPV; then
5714     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5715 fi
5716
5717 check_cc <<EOF && enable symver_asm_label
5718 void ff_foo(void) __asm__ ("av_foo@VERSION");
5719 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5720 EOF
5721     check_cc <<EOF && enable symver_gnu_asm
5722 __asm__(".symver ff_foo,av_foo@VERSION");
5723 void ff_foo(void) {}
5724 EOF
5725
5726 if [ -z "$optflags" ]; then
5727     if enabled small; then
5728         optflags=$cflags_size
5729     elif enabled optimizations; then
5730         optflags=$cflags_speed
5731     else
5732         optflags=$cflags_noopt
5733     fi
5734 fi
5735
5736 check_optflags(){
5737     check_cflags "$@"
5738     enabled lto && check_ldflags "$@"
5739 }
5740
5741
5742 if enabled lto; then
5743     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5744     check_cflags  -flto
5745     check_ldflags -flto $cpuflags
5746     disable inline_asm_direct_symbol_refs
5747 fi
5748
5749 check_optflags $optflags
5750 check_optflags -fno-math-errno
5751 check_optflags -fno-signed-zeros
5752
5753 enabled ftrapv && check_cflags -ftrapv
5754
5755 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5756 int x;
5757 EOF
5758
5759
5760 if enabled icc; then
5761     # Just warnings, no remarks
5762     check_cflags -w1
5763     # -wd: Disable following warnings
5764     # 144, 167, 556: -Wno-pointer-sign
5765     # 188: enumerated type mixed with another type
5766     # 1292: attribute "foo" ignored
5767     # 1419: external declaration in primary source file
5768     # 10006: ignoring unknown option -fno-signed-zeros
5769     # 10148: ignoring unknown option -Wno-parentheses
5770     # 10156: ignoring option '-W'; no argument required
5771     # 13200: No EMMS instruction before call to function
5772     # 13203: No EMMS instruction before return from function
5773     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5774     # 11030: Warning unknown option --as-needed
5775     # 10156: ignoring option '-export'; no argument required
5776     check_ldflags -wd10156,11030
5777     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5778     enable ebp_available
5779     # The test above does not test linking
5780     enabled lto && disable symver_asm_label
5781     if enabled x86_32; then
5782         icc_version=$($cc -dumpversion)
5783         test ${icc_version%%.*} -ge 11 &&
5784             check_cflags -falign-stack=maintain-16-byte ||
5785             disable aligned_stack
5786     fi
5787 elif enabled ccc; then
5788     # disable some annoying warnings
5789     add_cflags -msg_disable bitnotint
5790     add_cflags -msg_disable mixfuncvoid
5791     add_cflags -msg_disable nonstandcast
5792     add_cflags -msg_disable unsupieee
5793 elif enabled gcc; then
5794     check_optflags -fno-tree-vectorize
5795     check_cflags -Werror=format-security
5796     check_cflags -Werror=implicit-function-declaration
5797     check_cflags -Werror=missing-prototypes
5798     check_cflags -Werror=return-type
5799     check_cflags -Werror=vla
5800     check_cflags -Wformat
5801     check_cflags -fdiagnostics-color=auto
5802     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5803 elif enabled llvm_gcc; then
5804     check_cflags -mllvm -stack-alignment=16
5805 elif enabled clang; then
5806     check_cflags -mllvm -stack-alignment=16
5807     check_cflags -Qunused-arguments
5808     check_cflags -Werror=implicit-function-declaration
5809     check_cflags -Werror=missing-prototypes
5810     check_cflags -Werror=return-type
5811 elif enabled cparser; then
5812     add_cflags -Wno-missing-variable-declarations
5813     add_cflags -Wno-empty-statement
5814 elif enabled armcc; then
5815     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5816     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5817     # 2523: use of inline assembly is deprecated
5818     add_cflags -W${armcc_opt},--diag_suppress=2523
5819     add_cflags -W${armcc_opt},--diag_suppress=1207
5820     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5821     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5822     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5823     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5824 elif enabled tms470; then
5825     add_cflags -pds=824 -pds=837
5826     disable inline_asm
5827 elif enabled pathscale; then
5828     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5829 elif enabled_any msvc icl; then
5830     enabled x86_32 && disable aligned_stack
5831     enabled_all x86_32 debug && add_cflags -Oy-
5832     enabled debug && add_ldflags -debug
5833     enable pragma_deprecated
5834     if enabled icl; then
5835         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5836         # (correctly) on icl 13.x.
5837         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5838             add_cflags -Qansi-alias
5839         # Some inline asm is not compilable in debug
5840         if enabled debug; then
5841             disable ebp_available
5842             disable ebx_available
5843         fi
5844     fi
5845     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5846     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5847     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5848     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5849     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5850     # MSVC 2013 and newer can handle it fine.
5851     # If this declspec fails, force including stdlib.h before the restrict redefinition
5852     # happens in config.h.
5853     if [ $_restrict != restrict ]; then
5854         check_cc <<EOF || add_cflags -FIstdlib.h
5855 __declspec($_restrict) void* foo(int);
5856 EOF
5857     fi
5858     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5859 fi
5860
5861 for pfx in "" host_; do
5862     varname=${pfx%_}cc_type
5863     eval "type=\$$varname"
5864     if [ $type = "msvc" ]; then
5865         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5866 static inline int foo(int a) { return a; }
5867 EOF
5868     fi
5869 done
5870
5871 case $as_type in
5872     clang)
5873         add_asflags -Qunused-arguments
5874     ;;
5875 esac
5876
5877 case $ld_type in
5878     clang)
5879         check_ldflags -Qunused-arguments
5880     ;;
5881 esac
5882
5883 case $target_os in
5884     osf1)
5885         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5886     ;;
5887     plan9)
5888         add_cppflags -Dmain=plan9_main
5889     ;;
5890 esac
5891
5892 enable frame_thread_encoder
5893
5894 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5895
5896 check_deps $CONFIG_LIST       \
5897            $CONFIG_EXTRA      \
5898            $HAVE_LIST         \
5899            $ALL_COMPONENTS    \
5900
5901 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"
5902
5903
5904 if test $target_os = "haiku"; then
5905     disable memalign
5906     disable posix_memalign
5907 fi
5908
5909 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5910     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5911     enable dxva2_lib
5912
5913 ! enabled_any memalign posix_memalign aligned_malloc &&
5914     enabled simd_align_16 && enable memalign_hack
5915
5916 # add_dep lib dep
5917 # -> enable ${lib}_deps_${dep}
5918 # -> add $dep to ${lib}_deps only once
5919 add_dep() {
5920     lib=$1
5921     dep=$2
5922     enabled "${lib}_deps_${dep}" && return 0
5923     enable  "${lib}_deps_${dep}"
5924     prepend "${lib}_deps" $dep
5925 }
5926
5927 # merge deps lib components
5928 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5929 merge_deps() {
5930     lib=$1
5931     shift
5932     for comp in $*; do
5933         enabled $comp || continue
5934         eval "dep=\"\$${comp}_deps\""
5935         for d in $dep; do
5936             add_dep $lib $d
5937         done
5938     done
5939 }
5940
5941 merge_deps libavfilter $FILTER_LIST
5942
5943 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5944
5945 for thread in $THREADS_LIST; do
5946     if enabled $thread; then
5947         test -n "$thread_type" &&
5948             die "ERROR: Only one thread type must be selected." ||
5949             thread_type="$thread"
5950     fi
5951 done
5952
5953 enabled zlib && add_cppflags -DZLIB_CONST
5954
5955 # conditional library dependencies, in linking order
5956 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5957 enabled aresample_filter    && prepend avfilter_deps "swresample"
5958 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5959 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5960 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
5961 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5962 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5963 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
5964 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
5965 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5966 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5967 enabled pan_filter          && prepend avfilter_deps "swresample"
5968 enabled pp_filter           && prepend avfilter_deps "postproc"
5969 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5970 enabled resample_filter && prepend avfilter_deps "avresample"
5971 enabled sab_filter          && prepend avfilter_deps "swscale"
5972 enabled scale_filter    && prepend avfilter_deps "swscale"
5973 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
5974 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5975 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5976 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5977 enabled uspp_filter         && prepend avfilter_deps "avcodec"
5978
5979 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5980
5981 enabled opus_decoder    && prepend avcodec_deps "swresample"
5982
5983 expand_deps(){
5984     lib_deps=${1}_deps
5985     eval "deps=\$$lib_deps"
5986     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5987     unique $lib_deps
5988 }
5989
5990 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5991 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5992
5993 map 'expand_deps $v' $LIBRARY_LIST
5994
5995 echo "install prefix            $prefix"
5996 echo "source path               $source_path"
5997 echo "C compiler                $cc"
5998 echo "C library                 $libc_type"
5999 if test "$host_cc" != "$cc"; then
6000     echo "host C compiler           $host_cc"
6001     echo "host C library            $host_libc_type"
6002 fi
6003 echo "ARCH                      $arch ($cpu)"
6004 if test "$build_suffix" != ""; then
6005     echo "build suffix              $build_suffix"
6006 fi
6007 if test "$progs_suffix" != ""; then
6008     echo "progs suffix              $progs_suffix"
6009 fi
6010 if test "$extra_version" != ""; then
6011     echo "version string suffix     $extra_version"
6012 fi
6013 echo "big-endian                ${bigendian-no}"
6014 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6015 if enabled x86; then
6016     echo "${yasmexe}                      ${yasm-no}"
6017     echo "MMX enabled               ${mmx-no}"
6018     echo "MMXEXT enabled            ${mmxext-no}"
6019     echo "3DNow! enabled            ${amd3dnow-no}"
6020     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6021     echo "SSE enabled               ${sse-no}"
6022     echo "SSSE3 enabled             ${ssse3-no}"
6023     echo "AESNI enabled             ${aesni-no}"
6024     echo "AVX enabled               ${avx-no}"
6025     echo "XOP enabled               ${xop-no}"
6026     echo "FMA3 enabled              ${fma3-no}"
6027     echo "FMA4 enabled              ${fma4-no}"
6028     echo "i686 features enabled     ${i686-no}"
6029     echo "CMOV is fast              ${fast_cmov-no}"
6030     echo "EBX available             ${ebx_available-no}"
6031     echo "EBP available             ${ebp_available-no}"
6032 fi
6033 if enabled aarch64; then
6034     echo "NEON enabled              ${neon-no}"
6035     echo "VFP enabled               ${vfp-no}"
6036 fi
6037 if enabled arm; then
6038     echo "ARMv5TE enabled           ${armv5te-no}"
6039     echo "ARMv6 enabled             ${armv6-no}"
6040     echo "ARMv6T2 enabled           ${armv6t2-no}"
6041     echo "VFP enabled               ${vfp-no}"
6042     echo "NEON enabled              ${neon-no}"
6043     echo "THUMB enabled             ${thumb-no}"
6044 fi
6045 if enabled mips; then
6046     echo "MIPS FPU enabled          ${mipsfpu-no}"
6047     echo "MIPS32R5 enabled          ${mips32r5-no}"
6048     echo "MIPS64R6 enabled          ${mips64r6-no}"
6049     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
6050     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6051     echo "MIPS MSA enabled          ${msa-no}"
6052     echo "LOONGSON MMI enabled      ${mmi-no}"
6053 fi
6054 if enabled ppc; then
6055     echo "AltiVec enabled           ${altivec-no}"
6056     echo "VSX enabled               ${vsx-no}"
6057     echo "POWER8 enabled            ${power8-no}"
6058     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6059     echo "dcbzl available           ${dcbzl-no}"
6060 fi
6061 echo "debug symbols             ${debug-no}"
6062 echo "strip symbols             ${stripping-no}"
6063 echo "optimize for size         ${small-no}"
6064 echo "optimizations             ${optimizations-no}"
6065 echo "static                    ${static-no}"
6066 echo "shared                    ${shared-no}"
6067 echo "postprocessing support    ${postproc-no}"
6068 echo "new filter support        ${avfilter-no}"
6069 echo "network support           ${network-no}"
6070 echo "threading support         ${thread_type-no}"
6071 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6072 echo "SDL support               ${sdl-no}"
6073 echo "opencl enabled            ${opencl-no}"
6074 echo "texi2html enabled         ${texi2html-no}"
6075 echo "perl enabled              ${perl-no}"
6076 echo "pod2man enabled           ${pod2man-no}"
6077 echo "makeinfo enabled          ${makeinfo-no}"
6078 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6079 test -n "$random_seed" &&
6080     echo "random seed               ${random_seed}"
6081 echo
6082
6083 echo "Enabled programs:"
6084 print_enabled '' $PROGRAM_LIST | print_in_columns
6085 echo
6086
6087 echo "External libraries:"
6088 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6089 echo
6090
6091 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6092     echo "Enabled ${type}s:"
6093     eval list=\$$(toupper $type)_LIST
6094     print_enabled '_*' $list | print_in_columns
6095     echo
6096 done
6097
6098 license="LGPL version 2.1 or later"
6099 if enabled nonfree; then
6100     license="nonfree and unredistributable"
6101 elif enabled gplv3; then
6102     license="GPL version 3 or later"
6103 elif enabled lgplv3; then
6104     license="LGPL version 3 or later"
6105 elif enabled gpl; then
6106     license="GPL version 2 or later"
6107 fi
6108
6109 echo "License: $license"
6110
6111 echo "Creating config.mak, config.h, and doc/config.texi..."
6112
6113 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6114
6115 enabled stripping || strip="echo skipping strip"
6116
6117 config_files="$TMPH config.mak doc/config.texi"
6118
6119 cat > config.mak <<EOF
6120 # Automatically generated by configure - do not modify!
6121 ifndef FFMPEG_CONFIG_MAK
6122 FFMPEG_CONFIG_MAK=1
6123 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6124 prefix=$prefix
6125 LIBDIR=\$(DESTDIR)$libdir
6126 SHLIBDIR=\$(DESTDIR)$shlibdir
6127 INCDIR=\$(DESTDIR)$incdir
6128 BINDIR=\$(DESTDIR)$bindir
6129 DATADIR=\$(DESTDIR)$datadir
6130 DOCDIR=\$(DESTDIR)$docdir
6131 MANDIR=\$(DESTDIR)$mandir
6132 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6133 SRC_PATH=$source_path
6134 ifndef MAIN_MAKEFILE
6135 SRC_PATH:=\$(SRC_PATH:.%=..%)
6136 endif
6137 CC_IDENT=$cc_ident
6138 ARCH=$arch
6139 INTRINSICS=$intrinsics
6140 CC=$cc
6141 CXX=$cxx
6142 AS=$as
6143 LD=$ld
6144 DEPCC=$dep_cc
6145 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6146 DEPAS=$as
6147 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6148 YASM=$yasmexe
6149 DEPYASM=$yasmexe
6150 AR=$ar
6151 ARFLAGS=$arflags
6152 AR_O=$ar_o
6153 RANLIB=$ranlib
6154 STRIP=$strip
6155 CP=cp -p
6156 LN_S=$ln_s
6157 CPPFLAGS=$CPPFLAGS
6158 CFLAGS=$CFLAGS
6159 CXXFLAGS=$CXXFLAGS
6160 ASFLAGS=$ASFLAGS
6161 AS_C=$AS_C
6162 AS_O=$AS_O
6163 CC_C=$CC_C
6164 CC_E=$CC_E
6165 CC_O=$CC_O
6166 CXX_C=$CXX_C
6167 CXX_O=$CXX_O
6168 LD_O=$LD_O
6169 LD_LIB=$LD_LIB
6170 LD_PATH=$LD_PATH
6171 DLLTOOL=$dlltool
6172 WINDRES=$windres
6173 DEPWINDRES=$dep_cc
6174 DOXYGEN=$doxygen
6175 LDFLAGS=$LDFLAGS
6176 LDEXEFLAGS=$LDEXEFLAGS
6177 LDLIBFLAGS=$LDLIBFLAGS
6178 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6179 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6180 YASMFLAGS=$YASMFLAGS
6181 BUILDSUF=$build_suffix
6182 PROGSSUF=$progs_suffix
6183 FULLNAME=$FULLNAME
6184 LIBPREF=$LIBPREF
6185 LIBSUF=$LIBSUF
6186 LIBNAME=$LIBNAME
6187 SLIBPREF=$SLIBPREF
6188 SLIBSUF=$SLIBSUF
6189 EXESUF=$EXESUF
6190 EXTRA_VERSION=$extra_version
6191 CCDEP=$CCDEP
6192 CXXDEP=$CXXDEP
6193 CCDEP_FLAGS=$CCDEP_FLAGS
6194 ASDEP=$ASDEP
6195 ASDEP_FLAGS=$ASDEP_FLAGS
6196 CC_DEPFLAGS=$CC_DEPFLAGS
6197 AS_DEPFLAGS=$AS_DEPFLAGS
6198 HOSTCC=$host_cc
6199 HOSTLD=$host_ld
6200 HOSTCFLAGS=$host_cflags
6201 HOSTCPPFLAGS=$host_cppflags
6202 HOSTEXESUF=$HOSTEXESUF
6203 HOSTLDFLAGS=$host_ldflags
6204 HOSTLIBS=$host_libs
6205 DEPHOSTCC=$host_cc
6206 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6207 HOSTCCDEP=$HOSTCCDEP
6208 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6209 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6210 HOSTCC_C=$HOSTCC_C
6211 HOSTCC_O=$HOSTCC_O
6212 HOSTLD_O=$HOSTLD_O
6213 TARGET_EXEC=$target_exec $target_exec_args
6214 TARGET_PATH=$target_path
6215 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6216 CFLAGS-ffplay=$sdl_cflags
6217 ZLIB=$($ldflags_filter -lz)
6218 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6219 EXTRALIBS=$extralibs
6220 COMPAT_OBJS=$compat_objs
6221 EXEOBJS=$exeobjs
6222 INSTALL=$install
6223 LIBTARGET=${LIBTARGET}
6224 SLIBNAME=${SLIBNAME}
6225 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6226 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6227 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6228 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6229 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6230 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6231 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6232 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6233 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6234 NOREDZONE_FLAGS=$noredzone_flags
6235 EOF
6236
6237 get_version(){
6238     lcname=lib${1}
6239     name=$(toupper $lcname)
6240     file=$source_path/$lcname/version.h
6241     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6242     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6243     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6244     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6245     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6246     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6247 }
6248
6249 map 'get_version $v' $LIBRARY_LIST
6250
6251 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6252
6253 print_program_libs(){
6254     eval "program_libs=\$${1}_libs"
6255     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6256 }
6257
6258 map 'print_program_libs $v' $PROGRAM_LIST
6259
6260 cat > $TMPH <<EOF
6261 /* Automatically generated by configure - do not modify! */
6262 #ifndef FFMPEG_CONFIG_H
6263 #define FFMPEG_CONFIG_H
6264 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6265 #define FFMPEG_LICENSE "$(c_escape $license)"
6266 #define CONFIG_THIS_YEAR 2015
6267 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6268 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6269 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6270 #define av_restrict $_restrict
6271 #define EXTERN_PREFIX "${extern_prefix}"
6272 #define EXTERN_ASM ${extern_prefix}
6273 #define BUILDSUF "$build_suffix"
6274 #define SLIBSUF "$SLIBSUF"
6275 #define HAVE_MMX2 HAVE_MMXEXT
6276 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6277 EOF
6278
6279 test -n "$assert_level" &&
6280     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6281
6282 test -n "$malloc_prefix" &&
6283     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6284
6285 if enabled yasm; then
6286     append config_files $TMPASM
6287     printf '' >$TMPASM
6288 fi
6289
6290 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6291
6292
6293 mkdir -p doc
6294 mkdir -p tests
6295 mkdir -p tests/api
6296 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6297
6298 print_config ARCH_   "$config_files" $ARCH_LIST
6299 print_config HAVE_   "$config_files" $HAVE_LIST
6300 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6301                                      $CONFIG_EXTRA      \
6302                                      $ALL_COMPONENTS    \
6303
6304 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6305 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6306
6307 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6308 cp_if_changed $TMPH config.h
6309 touch .config
6310
6311 enabled yasm && cp_if_changed $TMPASM config.asm
6312
6313 cat > $TMPH <<EOF
6314 /* Generated by ffconf */
6315 #ifndef AVUTIL_AVCONFIG_H
6316 #define AVUTIL_AVCONFIG_H
6317 EOF
6318
6319 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6320
6321 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6322
6323 cp_if_changed $TMPH libavutil/avconfig.h
6324
6325 if test -n "$WARNINGS"; then
6326     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6327     enabled fatal_warnings && exit 1
6328 fi
6329
6330 # build pkg-config files
6331
6332 lib_version(){
6333     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6334 }
6335
6336 pkgconfig_generate(){
6337     name=$1
6338     shortname=${name#lib}${build_suffix}
6339     comment=$2
6340     version=$3
6341     libs=$4
6342     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6343     requires=${requires%, }
6344     enabled ${name#lib} || return 0
6345     mkdir -p $name
6346     cat <<EOF > $name/$name${build_suffix}.pc
6347 prefix=$prefix
6348 exec_prefix=\${prefix}
6349 libdir=$libdir
6350 includedir=$incdir
6351
6352 Name: $name
6353 Description: $comment
6354 Version: $version
6355 Requires: $(enabled shared || echo $requires)
6356 Requires.private: $(enabled shared && echo $requires)
6357 Conflicts:
6358 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6359 Libs.private: $(enabled shared && echo $libs)
6360 Cflags: -I\${includedir}
6361 EOF
6362
6363 mkdir -p doc/examples/pc-uninstalled
6364 includedir=${source_path}
6365 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6366     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6367 prefix=
6368 exec_prefix=
6369 libdir=\${pcfiledir}/../../../$name
6370 includedir=${includedir}
6371
6372 Name: $name
6373 Description: $comment
6374 Version: $version
6375 Requires: $requires
6376 Conflicts:
6377 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6378 Cflags: -I\${includedir}
6379 EOF
6380 }
6381
6382 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6383 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6384 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6385 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6386 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6387 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6388 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6389 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6390 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"