git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  91   --enable-rpath           use rpath to allow installing libraries in paths
  92                            not part of the dynamic linker search path
  93                            use rpath when linking programs [USE WITH CARE]
  94
  95 Licensing options:
  96   --enable-gpl             allow use of GPL code, the resulting libs
  97                            and binaries will be under GPL [no]
  98   --enable-version3        upgrade (L)GPL to version 3 [no]
  99   --enable-nonfree         allow use of nonfree code, the resulting libs
 100                            and binaries will be unredistributable [no]
 101
 102 Configuration options:
 103   --disable-static         do not build static libraries [no]
 104   --enable-shared          build shared libraries [no]
 105   --enable-small           optimize for size instead of speed
 106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 107   --enable-gray            enable full grayscale support (slower color)
 108   --disable-swscale-alpha  disable alpha channel support in swscale
 109   --disable-all            disable building components, libraries and programs
 110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 111   --enable-raise-major     increase major version numbers in sonames [no]
 112
 113 Program options:
 114   --disable-programs       do not build command line programs
 115   --disable-ffmpeg         disable ffmpeg build
 116   --disable-ffplay         disable ffplay build
 117   --disable-ffprobe        disable ffprobe build
 118   --disable-ffserver       disable ffserver build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Hardware accelerators:
 152   --disable-d3d11va        disable D3D11VA code [autodetect]
 153   --disable-dxva2          disable DXVA2 code [autodetect]
 154   --disable-vaapi          disable VAAPI code [autodetect]
 155   --disable-vda            disable VDA code [autodetect]
 156   --disable-vdpau          disable VDPAU code [autodetect]
 157   --enable-videotoolbox    enable VideoToolbox code [autodetect]
 158
 159 Individual component options:
 160   --disable-everything     disable all components listed below
 161   --disable-encoder=NAME   disable encoder NAME
 162   --enable-encoder=NAME    enable encoder NAME
 163   --disable-encoders       disable all encoders
 164   --disable-decoder=NAME   disable decoder NAME
 165   --enable-decoder=NAME    enable decoder NAME
 166   --disable-decoders       disable all decoders
 167   --disable-hwaccel=NAME   disable hwaccel NAME
 168   --enable-hwaccel=NAME    enable hwaccel NAME
 169   --disable-hwaccels       disable all hwaccels
 170   --disable-muxer=NAME     disable muxer NAME
 171   --enable-muxer=NAME      enable muxer NAME
 172   --disable-muxers         disable all muxers
 173   --disable-demuxer=NAME   disable demuxer NAME
 174   --enable-demuxer=NAME    enable demuxer NAME
 175   --disable-demuxers       disable all demuxers
 176   --enable-parser=NAME     enable parser NAME
 177   --disable-parser=NAME    disable parser NAME
 178   --disable-parsers        disable all parsers
 179   --enable-bsf=NAME        enable bitstream filter NAME
 180   --disable-bsf=NAME       disable bitstream filter NAME
 181   --disable-bsfs           disable all bitstream filters
 182   --enable-protocol=NAME   enable protocol NAME
 183   --disable-protocol=NAME  disable protocol NAME
 184   --disable-protocols      disable all protocols
 185   --enable-indev=NAME      enable input device NAME
 186   --disable-indev=NAME     disable input device NAME
 187   --disable-indevs         disable input devices
 188   --enable-outdev=NAME     enable output device NAME
 189   --disable-outdev=NAME    disable output device NAME
 190   --disable-outdevs        disable output devices
 191   --disable-devices        disable all devices
 192   --enable-filter=NAME     enable filter NAME
 193   --disable-filter=NAME    disable filter NAME
 194   --disable-filters        disable all filters
 195
 196 External library support:
 197   --enable-avisynth        enable reading of AviSynth script files [no]
 198   --disable-bzlib          disable bzlib [autodetect]
 199   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
 201   --enable-frei0r          enable frei0r video filtering [no]
 202   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 203                            if openssl, librtmp or gmp is not used [no]
 204   --enable-gmp             enable gmp, needed for rtmp(t)e support
 205                            if openssl or librtmp is not used [no]
 206   --enable-gnutls          enable gnutls, needed for https support
 207                            if openssl is not used [no]
 208   --disable-iconv          disable iconv [autodetect]
 209   --enable-ladspa          enable LADSPA audio filtering [no]
 210   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 211   --enable-libass          enable libass subtitles rendering,
 212                            needed for subtitles and ass filter [no]
 213   --enable-libbluray       enable BluRay reading using libbluray [no]
 214   --enable-libbs2b         enable bs2b DSP library [no]
 215   --enable-libcaca         enable textual display using libcaca [no]
 216   --enable-libcelt         enable CELT decoding via libcelt [no]
 217   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 218   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 219                            and libraw1394 [no]
 220   --enable-libdcadec       enable DCA decoding via libdcadec [no]
 221   --enable-libfaac         enable AAC encoding via libfaac [no]
 222   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 223   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 224   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 225   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 226   --enable-libgme          enable Game Music Emu via libgme [no]
 227   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 228   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 229   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 230   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 231   --enable-libmfx          enable HW acceleration through libmfx
 232   --enable-libmodplug      enable ModPlug via libmodplug [no]
 233   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 234   --enable-libnut          enable NUT (de)muxing via libnut,
 235                            native (de)muxer exists [no]
 236   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 237   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 238   --enable-libopencv       enable video filtering via libopencv [no]
 239   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 240   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 241   --enable-libopus         enable Opus de/encoding via libopus [no]
 242   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 243   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 244   --enable-libquvi         enable quvi input via libquvi [no]
 245   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 246   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 247   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 248   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 249   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 250   --enable-libsoxr         enable Include libsoxr resampling [no]
 251   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 252   --enable-libssh          enable SFTP protocol via libssh [no]
 253   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 254   --enable-libtheora       enable Theora encoding via libtheora [no]
 255   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 256   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 257   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 258   --enable-libvidstab      enable video stabilization using vid.stab [no]
 259   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 260   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 261   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 262                            native implementation exists [no]
 263   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 264   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 265   --enable-libwebp         enable WebP encoding via libwebp [no]
 266   --enable-libx264         enable H.264 encoding via x264 [no]
 267   --enable-libx265         enable HEVC encoding via x265 [no]
 268   --enable-libxavs         enable AVS encoding via xavs [no]
 269   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 270   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 271   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 272   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 273   --enable-libxvid         enable Xvid encoding via xvidcore,
 274                            native MPEG-4/Xvid encoder exists [no]
 275   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 276   --enable-libzmq          enable message passing via libzmq [no]
 277   --enable-libzvbi         enable teletext support via libzvbi [no]
 278   --disable-lzma           disable lzma [autodetect]
 279   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 280   --enable-mmal            enable decoding via MMAL [no]
 281   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 282   --enable-nvenc           enable NVIDIA NVENC support [no]
 283   --enable-openal          enable OpenAL 1.1 capture support [no]
 284   --enable-opencl          enable OpenCL code
 285   --enable-opengl          enable OpenGL rendering [no]
 286   --enable-openssl         enable openssl, needed for https support
 287                            if gnutls is not used [no]
 288   --disable-schannel       disable SChannel SSP, needed for TLS support on
 289                            Windows if openssl and gnutls are not used [autodetect]
 290   --disable-sdl            disable sdl [autodetect]
 291   --disable-securetransport disable Secure Transport, needed for TLS support
 292                            on OSX if openssl and gnutls are not used [autodetect]
 293   --enable-x11grab         enable X11 grabbing (legacy) [no]
 294   --disable-xlib           disable xlib [autodetect]
 295   --disable-zlib           disable zlib [autodetect]
 296
 297 Toolchain options:
 298   --arch=ARCH              select architecture [$arch]
 299   --cpu=CPU                select the minimum required CPU (affects
 300                            instruction selection, may crash on older CPUs)
 301   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 302   --progs-suffix=SUFFIX    program name suffix []
 303   --enable-cross-compile   assume a cross-compiler is used
 304   --sysroot=PATH           root of cross-build tree
 305   --sysinclude=PATH        location of cross-build system headers
 306   --target-os=OS           compiler targets OS [$target_os]
 307   --target-exec=CMD        command to run executables on target
 308   --target-path=DIR        path to view of build directory on target
 309   --target-samples=DIR     path to samples directory on target
 310   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 311   --toolchain=NAME         set tool defaults according to NAME
 312   --nm=NM                  use nm tool NM [$nm_default]
 313   --ar=AR                  use archive tool AR [$ar_default]
 314   --as=AS                  use assembler AS [$as_default]
 315   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 316   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 317   --cc=CC                  use C compiler CC [$cc_default]
 318   --cxx=CXX                use C compiler CXX [$cxx_default]
 319   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 320   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 321   --ld=LD                  use linker LD [$ld_default]
 322   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 323   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 324   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 325   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 326   --host-cc=HOSTCC         use host C compiler HOSTCC
 327   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 328   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 329   --host-ld=HOSTLD         use host linker HOSTLD
 330   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 331   --host-libs=HLIBS        use libs HLIBS when linking for host
 332   --host-os=OS             compiler host OS [$target_os]
 333   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 334   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 335   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 336   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 337   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 338   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 339   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 340   --extra-version=STRING   version string suffix []
 341   --optflags=OPTFLAGS      override optimization-related compiler flags
 342   --build-suffix=SUFFIX    library name suffix []
 343   --enable-pic             build position-independent code
 344   --enable-thumb           compile for Thumb instruction set
 345   --enable-lto             use link-time optimization
 346   --env="ENV=override"     override the environment variables
 347
 348 Advanced options (experts only):
 349   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 350   --custom-allocator=NAME  use a supported custom allocator
 351   --disable-symver         disable symbol versioning
 352   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 353   --disable-safe-bitstream-reader
 354                            disable buffer boundary checking in bitreaders
 355                            (faster, but may crash)
 356   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 357   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 358
 359 Optimization options (experts only):
 360   --disable-asm            disable all assembly optimizations
 361   --disable-altivec        disable AltiVec optimizations
 362   --disable-vsx            disable VSX optimizations
 363   --disable-power8         disable POWER8 optimizations
 364   --disable-amd3dnow       disable 3DNow! optimizations
 365   --disable-amd3dnowext    disable 3DNow! extended optimizations
 366   --disable-mmx            disable MMX optimizations
 367   --disable-mmxext         disable MMXEXT optimizations
 368   --disable-sse            disable SSE optimizations
 369   --disable-sse2           disable SSE2 optimizations
 370   --disable-sse3           disable SSE3 optimizations
 371   --disable-ssse3          disable SSSE3 optimizations
 372   --disable-sse4           disable SSE4 optimizations
 373   --disable-sse42          disable SSE4.2 optimizations
 374   --disable-avx            disable AVX optimizations
 375   --disable-xop            disable XOP optimizations
 376   --disable-fma3           disable FMA3 optimizations
 377   --disable-fma4           disable FMA4 optimizations
 378   --disable-avx2           disable AVX2 optimizations
 379   --disable-aesni          disable AESNI optimizations
 380   --disable-armv5te        disable armv5te optimizations
 381   --disable-armv6          disable armv6 optimizations
 382   --disable-armv6t2        disable armv6t2 optimizations
 383   --disable-vfp            disable VFP optimizations
 384   --disable-neon           disable NEON optimizations
 385   --disable-inline-asm     disable use of inline assembly
 386   --disable-yasm           disable use of nasm/yasm assembly
 387   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 388   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 389   --disable-msa            disable MSA optimizations
 390   --disable-mipsfpu        disable floating point MIPS optimizations
 391   --disable-mmi            disable Loongson SIMD optimizations
 392   --disable-fast-unaligned consider unaligned accesses slow
 393
 394 Developer options (useful when working on FFmpeg itself):
 395   --disable-debug          disable debugging symbols
 396   --enable-debug=LEVEL     set the debug level [$debuglevel]
 397   --disable-optimizations  disable compiler optimizations
 398   --enable-extra-warnings  enable more compiler warnings
 399   --disable-stripping      disable stripping of executables and shared libraries
 400   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 401                            2 causes a slowdown at runtime.
 402   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 403   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 404                            leaks and errors, using the specified valgrind binary.
 405                            Cannot be combined with --target-exec
 406   --enable-ftrapv          Trap arithmetic overflows
 407   --samples=PATH           location of test samples for FATE, if not set use
 408                            \$FATE_SAMPLES at make invocation time.
 409   --enable-neon-clobber-test check NEON registers for clobbering (should be
 410                            used only for debugging purposes)
 411   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 412                            should be used only for debugging purposes)
 413   --enable-random          randomly enable/disable components
 414   --disable-random
 415   --enable-random=LIST     randomly enable/disable specific components or
 416   --disable-random=LIST    component groups. LIST is a comma-separated list
 417                            of NAME[:PROB] entries where NAME is a component
 418                            (group) and PROB the probability associated with
 419                            NAME (default 0.5).
 420   --random-seed=VALUE      seed value for --enable/disable-random
 421   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 422                            (only applies to --disable-optimizations builds)
 423
 424 NOTE: Object files are built at the place where configure is launched.
 425 EOF
 426   exit 0
 427 }
 428
 429 quotes='""'
 430 if test -t 1 && which tput >/dev/null 2>&1; then
 431     ncolors=$(tput colors)
 432     if test -n "$ncolors" && test $ncolors -ge 8; then
 433         bold_color=$(tput bold)
 434         warn_color=$(tput setaf 3)
 435         error_color=$(tput setaf 1)
 436         reset_color=$(tput sgr0)
 437     fi
 438     # 72 used instead of 80 since that's the default of pr
 439     ncols=$(tput cols)
 440 fi
 441 : ${ncols:=72}
 442
 443 log(){
 444     echo "$@" >> $logfile
 445 }
 446
 447 log_file(){
 448     log BEGIN $1
 449     pr -n -t $1 >> $logfile
 450     log END $1
 451 }
 452
 453 warn(){
 454     log "WARNING: $*"
 455     WARNINGS="${WARNINGS}WARNING: $*\n"
 456 }
 457
 458 die(){
 459     log "$@"
 460     echo "$error_color$bold_color$@$reset_color"
 461     cat <<EOF
 462
 463 If you think configure made a mistake, make sure you are using the latest
 464 version from Git.  If the latest version fails, report the problem to the
 465 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 466 EOF
 467     if disabled logging; then
 468         cat <<EOF
 469 Rerun configure with logging enabled (do not use --disable-logging), and
 470 include the log this produces with your report.
 471 EOF
 472     else
 473         cat <<EOF
 474 Include the log file "$logfile" produced by configure as this will help
 475 solve the problem.
 476 EOF
 477     fi
 478     exit 1
 479 }
 480
 481 # Avoid locale weirdness, besides we really just want to translate ASCII.
 482 toupper(){
 483     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 484 }
 485
 486 tolower(){
 487     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 488 }
 489
 490 c_escape(){
 491     echo "$*" | sed 's/["\\]/\\\0/g'
 492 }
 493
 494 sh_quote(){
 495     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 496     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 497     echo "$v"
 498 }
 499
 500 cleanws(){
 501     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 502 }
 503
 504 filter(){
 505     pat=$1
 506     shift
 507     for v; do
 508         eval "case $v in $pat) echo $v ;; esac"
 509     done
 510 }
 511
 512 filter_out(){
 513     pat=$1
 514     shift
 515     for v; do
 516         eval "case $v in $pat) ;; *) echo $v ;; esac"
 517     done
 518 }
 519
 520 map(){
 521     m=$1
 522     shift
 523     for v; do eval $m; done
 524 }
 525
 526 add_suffix(){
 527     suffix=$1
 528     shift
 529     for v; do echo ${v}${suffix}; done
 530 }
 531
 532 set_all(){
 533     value=$1
 534     shift
 535     for var in $*; do
 536         eval $var=$value
 537     done
 538 }
 539
 540 set_weak(){
 541     value=$1
 542     shift
 543     for var; do
 544         eval : \${$var:=$value}
 545     done
 546 }
 547
 548 sanitize_var_name(){
 549     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 550 }
 551
 552 set_safe(){
 553     var=$1
 554     shift
 555     eval $(sanitize_var_name "$var")='$*'
 556 }
 557
 558 get_safe(){
 559     eval echo \$$(sanitize_var_name "$1")
 560 }
 561
 562 pushvar(){
 563     for pvar in $*; do
 564         eval level=\${${pvar}_level:=0}
 565         eval ${pvar}_${level}="\$$pvar"
 566         eval ${pvar}_level=$(($level+1))
 567     done
 568 }
 569
 570 popvar(){
 571     for pvar in $*; do
 572         eval level=\${${pvar}_level:-0}
 573         test $level = 0 && continue
 574         eval level=$(($level-1))
 575         eval $pvar="\${${pvar}_${level}}"
 576         eval ${pvar}_level=$level
 577         eval unset ${pvar}_${level}
 578     done
 579 }
 580
 581 enable(){
 582     set_all yes $*
 583 }
 584
 585 disable(){
 586     set_all no $*
 587 }
 588
 589 enable_weak(){
 590     set_weak yes $*
 591 }
 592
 593 disable_weak(){
 594     set_weak no $*
 595 }
 596
 597 enable_safe(){
 598     for var; do
 599         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 600     done
 601 }
 602
 603 disable_safe(){
 604     for var; do
 605         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 606     done
 607 }
 608
 609 do_enable_deep(){
 610     for var; do
 611         enabled $var && continue
 612         eval sel="\$${var}_select"
 613         eval sgs="\$${var}_suggest"
 614         pushvar var sgs
 615         enable_deep $sel
 616         popvar sgs
 617         enable_deep_weak $sgs
 618         popvar var
 619     done
 620 }
 621
 622 enable_deep(){
 623     do_enable_deep $*
 624     enable $*
 625 }
 626
 627 enable_deep_weak(){
 628     for var; do
 629         disabled $var && continue
 630         pushvar var
 631         do_enable_deep $var
 632         popvar var
 633         enable_weak $var
 634     done
 635 }
 636
 637 enabled(){
 638     test "${1#!}" = "$1" && op='=' || op=!=
 639     eval test "x\$${1#!}" $op "xyes"
 640 }
 641
 642 disabled(){
 643     test "${1#!}" = "$1" && op='=' || op=!=
 644     eval test "x\$${1#!}" $op "xno"
 645 }
 646
 647 enabled_all(){
 648     for opt; do
 649         enabled $opt || return 1
 650     done
 651 }
 652
 653 disabled_all(){
 654     for opt; do
 655         disabled $opt || return 1
 656     done
 657 }
 658
 659 enabled_any(){
 660     for opt; do
 661         enabled $opt && return 0
 662     done
 663 }
 664
 665 disabled_any(){
 666     for opt; do
 667         disabled $opt && return 0
 668     done
 669     return 1
 670 }
 671
 672 set_default(){
 673     for opt; do
 674         eval : \${$opt:=\$${opt}_default}
 675     done
 676 }
 677
 678 is_in(){
 679     value=$1
 680     shift
 681     for var in $*; do
 682         [ $var = $value ] && return 0
 683     done
 684     return 1
 685 }
 686
 687 do_check_deps(){
 688     for cfg; do
 689         cfg="${cfg#!}"
 690         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 691         disabled ${cfg}_checking && continue
 692         enable ${cfg}_checking
 693         append allopts $cfg
 694
 695         eval dep_all="\$${cfg}_deps"
 696         eval dep_any="\$${cfg}_deps_any"
 697         eval dep_sel="\$${cfg}_select"
 698         eval dep_sgs="\$${cfg}_suggest"
 699         eval dep_ifa="\$${cfg}_if"
 700         eval dep_ifn="\$${cfg}_if_any"
 701
 702         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 703         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 704         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 705
 706         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 707         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 708         enabled_all  $dep_all || disable $cfg
 709         enabled_any  $dep_any || disable $cfg
 710         disabled_any $dep_sel && disable $cfg
 711
 712         if enabled $cfg; then
 713             enable_deep $dep_sel
 714             enable_deep_weak $dep_sgs
 715         fi
 716
 717         disable ${cfg}_checking
 718     done
 719 }
 720
 721 check_deps(){
 722     unset allopts
 723
 724     do_check_deps "$@"
 725
 726     for cfg in $allopts; do
 727         enabled $cfg || continue
 728         eval dep_extralibs="\$${cfg}_extralibs"
 729         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 730     done
 731 }
 732
 733 print_config(){
 734     pfx=$1
 735     files=$2
 736     shift 2
 737     map 'eval echo "$v \${$v:-no}"' "$@" |
 738     awk "BEGIN { split(\"$files\", files) }
 739         {
 740             c = \"$pfx\" toupper(\$1);
 741             v = \$2;
 742             sub(/yes/, 1, v);
 743             sub(/no/,  0, v);
 744             for (f in files) {
 745                 file = files[f];
 746                 if (file ~ /\\.h\$/) {
 747                     printf(\"#define %s %d\\n\", c, v) >>file;
 748                 } else if (file ~ /\\.asm\$/) {
 749                     printf(\"%%define %s %d\\n\", c, v) >>file;
 750                 } else if (file ~ /\\.mak\$/) {
 751                     n = -v ? \"\" : \"!\";
 752                     printf(\"%s%s=yes\\n\", n, c) >>file;
 753                 } else if (file ~ /\\.texi\$/) {
 754                     pre = -v ? \"\" : \"@c \";
 755                     yesno = \$2;
 756                     c2 = tolower(c);
 757                     gsub(/_/, \"-\", c2);
 758                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 759                 }
 760             }
 761         }"
 762 }
 763
 764 print_enabled(){
 765     suf=$1
 766     shift
 767     for v; do
 768         enabled $v && printf "%s\n" ${v%$suf};
 769     done
 770 }
 771
 772 append(){
 773     var=$1
 774     shift
 775     eval "$var=\"\$$var $*\""
 776 }
 777
 778 prepend(){
 779     var=$1
 780     shift
 781     eval "$var=\"$* \$$var\""
 782 }
 783
 784 unique(){
 785     var=$1
 786     uniq_list=""
 787     for tok in $(eval echo \$$var); do
 788         uniq_list="$(filter_out $tok $uniq_list) $tok"
 789     done
 790     eval "$var=\"${uniq_list}\""
 791 }
 792
 793 add_cppflags(){
 794     append CPPFLAGS "$@"
 795 }
 796
 797 add_cflags(){
 798     append CFLAGS $($cflags_filter "$@")
 799 }
 800
 801 add_cxxflags(){
 802     append CXXFLAGS $($cflags_filter "$@")
 803 }
 804
 805 add_asflags(){
 806     append ASFLAGS $($asflags_filter "$@")
 807 }
 808
 809 add_objcflags(){
 810     append OBJCFLAGS $($objcflags_filter "$@")
 811 }
 812
 813 add_ldflags(){
 814     append LDFLAGS $($ldflags_filter "$@")
 815 }
 816
 817 add_ldexeflags(){
 818     append LDEXEFLAGS $($ldflags_filter "$@")
 819 }
 820
 821 add_ldlibflags(){
 822     append LDLIBFLAGS $($ldflags_filter "$@")
 823 }
 824
 825 add_stripflags(){
 826     append ASMSTRIPFLAGS "$@"
 827 }
 828
 829 add_extralibs(){
 830     prepend extralibs $($ldflags_filter "$@")
 831 }
 832
 833 add_host_cppflags(){
 834     append host_cppflags "$@"
 835 }
 836
 837 add_host_cflags(){
 838     append host_cflags $($host_cflags_filter "$@")
 839 }
 840
 841 add_host_ldflags(){
 842     append host_ldflags $($host_ldflags_filter "$@")
 843 }
 844
 845 add_compat(){
 846     append compat_objs $1
 847     shift
 848     map 'add_cppflags -D$v' "$@"
 849 }
 850
 851 check_cmd(){
 852     log "$@"
 853     "$@" >> $logfile 2>&1
 854 }
 855
 856 check_stat(){
 857     log check_stat "$@"
 858     stat "$1" >> $logfile 2>&1
 859 }
 860
 861 cc_o(){
 862     eval printf '%s\\n' $CC_O
 863 }
 864
 865 cc_e(){
 866     eval printf '%s\\n' $CC_E
 867 }
 868
 869 check_cc(){
 870     log check_cc "$@"
 871     cat > $TMPC
 872     log_file $TMPC
 873     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 874 }
 875
 876 check_cxx(){
 877     log check_cxx "$@"
 878     cat > $TMPCPP
 879     log_file $TMPCPP
 880     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 881 }
 882
 883 check_objcc(){
 884     log check_objcc "$@"
 885     cat > $TMPM
 886     log_file $TMPM
 887     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 888 }
 889
 890 check_cpp(){
 891     log check_cpp "$@"
 892     cat > $TMPC
 893     log_file $TMPC
 894     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 895 }
 896
 897 as_o(){
 898     eval printf '%s\\n' $AS_O
 899 }
 900
 901 check_as(){
 902     log check_as "$@"
 903     cat > $TMPS
 904     log_file $TMPS
 905     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 906 }
 907
 908 check_inline_asm(){
 909     log check_inline_asm "$@"
 910     name="$1"
 911     code="$2"
 912     shift 2
 913     disable $name
 914     check_cc "$@" <<EOF && enable $name
 915 void foo(void){ __asm__ volatile($code); }
 916 EOF
 917 }
 918
 919 check_insn(){
 920     log check_insn "$@"
 921     check_inline_asm ${1}_inline "\"$2\""
 922     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 923 }
 924
 925 check_yasm(){
 926     log check_yasm "$@"
 927     echo "$1" > $TMPS
 928     log_file $TMPS
 929     shift 1
 930     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 931 }
 932
 933 ld_o(){
 934     eval printf '%s\\n' $LD_O
 935 }
 936
 937 check_ld(){
 938     log check_ld "$@"
 939     type=$1
 940     shift 1
 941     flags=$(filter_out '-l*|*.so' $@)
 942     libs=$(filter '-l*|*.so' $@)
 943     check_$type $($cflags_filter $flags) || return
 944     flags=$($ldflags_filter $flags)
 945     libs=$($ldflags_filter $libs)
 946     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 947 }
 948
 949 print_include(){
 950     hdr=$1
 951     test "${hdr%.h}" = "${hdr}" &&
 952         echo "#include $hdr"    ||
 953         echo "#include <$hdr>"
 954 }
 955
 956 check_code(){
 957     log check_code "$@"
 958     check=$1
 959     headers=$2
 960     code=$3
 961     shift 3
 962     {
 963         for hdr in $headers; do
 964             print_include $hdr
 965         done
 966         echo "int main(void) { $code; return 0; }"
 967     } | check_$check "$@"
 968 }
 969
 970 check_cppflags(){
 971     log check_cppflags "$@"
 972     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 973 int x;
 974 EOF
 975 }
 976
 977 test_cflags(){
 978     log test_cflags "$@"
 979     set -- $($cflags_filter "$@")
 980     check_cc "$@" <<EOF
 981 int x;
 982 EOF
 983 }
 984
 985 check_cflags(){
 986     log check_cflags "$@"
 987     test_cflags "$@" && add_cflags "$@"
 988 }
 989
 990 check_cxxflags(){
 991     log check_cxxflags "$@"
 992     set -- $($cflags_filter "$@")
 993     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 994 int x;
 995 EOF
 996 }
 997
 998 test_objcflags(){
 999     log test_cflags "$@"
1000     set -- $($cflags_filter "$@")
1001     check_objcc "$@" <<EOF
1002 int x;
1003 EOF
1004 }
1005
1006 check_objcflags(){
1007     log check_cflags "$@"
1008     test_objcflags "$@" && add_objcflags "$@"
1009 }
1010
1011 test_ldflags(){
1012     log test_ldflags "$@"
1013     check_ld "cc" "$@" <<EOF
1014 int main(void){ return 0; }
1015 EOF
1016 }
1017
1018 check_ldflags(){
1019     log check_ldflags "$@"
1020     test_ldflags "$@" && add_ldflags "$@"
1021 }
1022
1023 test_stripflags(){
1024     log test_stripflags "$@"
1025     # call check_cc to get a fresh TMPO
1026     check_cc <<EOF
1027 int main(void) { return 0; }
1028 EOF
1029     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1030 }
1031
1032 check_stripflags(){
1033     log check_stripflags "$@"
1034     test_stripflags "$@" && add_stripflags "$@"
1035 }
1036
1037 check_header(){
1038     log check_header "$@"
1039     header=$1
1040     shift
1041     disable_safe $header
1042     check_cpp "$@" <<EOF && enable_safe $header
1043 #include <$header>
1044 int x;
1045 EOF
1046 }
1047
1048 check_header_objcc(){
1049     log check_header_objcc "$@"
1050     rm -f -- "$TMPO"
1051     header=$1
1052     shift
1053     disable_safe $header
1054     {
1055        echo "#include <$header>"
1056        echo "int main(void) { return 0; }"
1057     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1058 }
1059
1060 check_func(){
1061     log check_func "$@"
1062     func=$1
1063     shift
1064     disable $func
1065     check_ld "cc" "$@" <<EOF && enable $func
1066 extern int $func();
1067 int main(void){ $func(); }
1068 EOF
1069 }
1070
1071 check_complexfunc(){
1072     log check_complexfunc "$@"
1073     func=$1
1074     narg=$2
1075     shift 2
1076     test $narg = 2 && args="f, g" || args="f * I"
1077     disable $func
1078     check_ld "cc" "$@" <<EOF && enable $func
1079 #include <complex.h>
1080 #include <math.h>
1081 float foo(complex float f, complex float g) { return $func($args); }
1082 int main(void){ return (int) foo; }
1083 EOF
1084 }
1085
1086 check_mathfunc(){
1087     log check_mathfunc "$@"
1088     func=$1
1089     narg=$2
1090     shift 2
1091     test $narg = 2 && args="f, g" || args="f"
1092     disable $func
1093     check_ld "cc" "$@" <<EOF && enable $func
1094 #include <math.h>
1095 float foo(float f, float g) { return $func($args); }
1096 int main(void){ return (int) foo; }
1097 EOF
1098 }
1099
1100 check_func_headers(){
1101     log check_func_headers "$@"
1102     headers=$1
1103     funcs=$2
1104     shift 2
1105     {
1106         for hdr in $headers; do
1107             print_include $hdr
1108         done
1109         for func in $funcs; do
1110             echo "long check_$func(void) { return (long) $func; }"
1111         done
1112         echo "int main(void) { return 0; }"
1113     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1114 }
1115
1116 check_class_headers_cpp(){
1117     log check_class_headers_cpp "$@"
1118     headers=$1
1119     classes=$2
1120     shift 2
1121     {
1122         for hdr in $headers; do
1123             echo "#include <$hdr>"
1124         done
1125         echo "int main(void) { "
1126         i=1
1127         for class in $classes; do
1128             echo "$class obj$i;"
1129             i=$(expr $i + 1)
1130         done
1131         echo "return 0; }"
1132     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1133 }
1134
1135 check_cpp_condition(){
1136     log check_cpp_condition "$@"
1137     header=$1
1138     condition=$2
1139     shift 2
1140     check_cpp "$@" <<EOF
1141 #include <$header>
1142 #if !($condition)
1143 #error "unsatisfied condition: $condition"
1144 #endif
1145 EOF
1146 }
1147
1148 check_lib(){
1149     log check_lib "$@"
1150     header="$1"
1151     func="$2"
1152     shift 2
1153     check_header $header && check_func $func "$@" && add_extralibs "$@"
1154 }
1155
1156 check_lib2(){
1157     log check_lib2 "$@"
1158     headers="$1"
1159     funcs="$2"
1160     shift 2
1161     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1162 }
1163
1164 check_lib_cpp(){
1165     log check_lib_cpp "$@"
1166     headers="$1"
1167     classes="$2"
1168     shift 2
1169     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1170 }
1171
1172 check_pkg_config(){
1173     log check_pkg_config "$@"
1174     pkgandversion="$1"
1175     pkg="${1%% *}"
1176     headers="$2"
1177     funcs="$3"
1178     shift 3
1179     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1180     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1181     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1182     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1183         set_safe "${pkg}_cflags" $pkg_cflags   &&
1184         set_safe "${pkg}_libs"   $pkg_libs
1185 }
1186
1187 check_exec(){
1188     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1189 }
1190
1191 check_exec_crash(){
1192     code=$(cat)
1193
1194     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1195     # are safe but may not be available everywhere.  Thus we use
1196     # raise(SIGTERM) instead.  The check is run in a subshell so we
1197     # can redirect the "Terminated" message from the shell.  SIGBUS
1198     # is not defined by standard C so it is used conditionally.
1199
1200     (check_exec "$@") >> $logfile 2>&1 <<EOF
1201 #include <signal.h>
1202 static void sighandler(int sig){
1203     raise(SIGTERM);
1204 }
1205 int foo(void){
1206     $code
1207 }
1208 int (*func_ptr)(void) = foo;
1209 int main(void){
1210     signal(SIGILL, sighandler);
1211     signal(SIGFPE, sighandler);
1212     signal(SIGSEGV, sighandler);
1213 #ifdef SIGBUS
1214     signal(SIGBUS, sighandler);
1215 #endif
1216     return func_ptr();
1217 }
1218 EOF
1219 }
1220
1221 check_type(){
1222     log check_type "$@"
1223     headers=$1
1224     type=$2
1225     shift 2
1226     disable_safe "$type"
1227     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1228 }
1229
1230 check_struct(){
1231     log check_struct "$@"
1232     headers=$1
1233     struct=$2
1234     member=$3
1235     shift 3
1236     disable_safe "${struct}_${member}"
1237     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1238         enable_safe "${struct}_${member}"
1239 }
1240
1241 check_builtin(){
1242     log check_builtin "$@"
1243     name=$1
1244     headers=$2
1245     builtin=$3
1246     shift 3
1247     disable "$name"
1248     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1249 }
1250
1251 check_compile_assert(){
1252     log check_compile_assert "$@"
1253     name=$1
1254     headers=$2
1255     condition=$3
1256     shift 3
1257     disable "$name"
1258     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1259 }
1260
1261 require(){
1262     name="$1"
1263     header="$2"
1264     func="$3"
1265     shift 3
1266     check_lib $header $func "$@" || die "ERROR: $name not found"
1267 }
1268
1269 require2(){
1270     name="$1"
1271     headers="$2"
1272     func="$3"
1273     shift 3
1274     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1275 }
1276
1277 require_cpp(){
1278     name="$1"
1279     headers="$2"
1280     classes="$3"
1281     shift 3
1282     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1283 }
1284
1285 use_pkg_config(){
1286     pkg="$1"
1287     check_pkg_config "$@" || return 1
1288     add_cflags    $(get_safe "${pkg}_cflags")
1289     add_extralibs $(get_safe "${pkg}_libs")
1290 }
1291
1292 require_pkg_config(){
1293     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1294 }
1295
1296 require_libfreetype(){
1297     log require_libfreetype "$@"
1298     pkg="freetype2"
1299     check_cmd $pkg_config --exists --print-errors $pkg \
1300       || die "ERROR: $pkg not found"
1301     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1302     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1303     {
1304         echo "#include <ft2build.h>"
1305         echo "#include FT_FREETYPE_H"
1306         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1307         echo "int main(void) { return 0; }"
1308     } | check_ld "cc" $pkg_cflags $pkg_libs \
1309       && set_safe "${pkg}_cflags" $pkg_cflags \
1310       && set_safe "${pkg}_libs"   $pkg_libs \
1311       || die "ERROR: $pkg not found"
1312     add_cflags    $(get_safe "${pkg}_cflags")
1313     add_extralibs $(get_safe "${pkg}_libs")
1314 }
1315
1316 hostcc_e(){
1317     eval printf '%s\\n' $HOSTCC_E
1318 }
1319
1320 hostcc_o(){
1321     eval printf '%s\\n' $HOSTCC_O
1322 }
1323
1324 check_host_cc(){
1325     log check_host_cc "$@"
1326     cat > $TMPC
1327     log_file $TMPC
1328     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1329 }
1330
1331 check_host_cpp(){
1332     log check_host_cpp "$@"
1333     cat > $TMPC
1334     log_file $TMPC
1335     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1336 }
1337
1338 check_host_cppflags(){
1339     log check_host_cppflags "$@"
1340     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1341 int x;
1342 EOF
1343 }
1344
1345 check_host_cflags(){
1346     log check_host_cflags "$@"
1347     set -- $($host_cflags_filter "$@")
1348     check_host_cc "$@" <<EOF && append host_cflags "$@"
1349 int x;
1350 EOF
1351 }
1352
1353 check_host_cpp_condition(){
1354     log check_host_cpp_condition "$@"
1355     header=$1
1356     condition=$2
1357     shift 2
1358     check_host_cpp "$@" <<EOF
1359 #include <$header>
1360 #if !($condition)
1361 #error "unsatisfied condition: $condition"
1362 #endif
1363 EOF
1364 }
1365
1366 cp_if_changed(){
1367     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1368     mkdir -p "$(dirname $2)"
1369     $cp_f "$1" "$2"
1370 }
1371
1372 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1373 # system-dependent things.
1374
1375 AVCODEC_COMPONENTS="
1376     bsfs
1377     decoders
1378     encoders
1379     hwaccels
1380     parsers
1381 "
1382
1383 AVDEVICE_COMPONENTS="
1384     indevs
1385     outdevs
1386 "
1387 AVFILTER_COMPONENTS="
1388     filters
1389 "
1390 AVFORMAT_COMPONENTS="
1391     demuxers
1392     muxers
1393     protocols
1394 "
1395
1396 AVRESAMPLE_COMPONENTS=""
1397 AVUTIL_COMPONENTS=""
1398
1399 COMPONENT_LIST="
1400     $AVCODEC_COMPONENTS
1401     $AVDEVICE_COMPONENTS
1402     $AVFILTER_COMPONENTS
1403     $AVFORMAT_COMPONENTS
1404     $AVRESAMPLE_COMPONENTS
1405     $AVUTIL_COMPONENTS
1406 "
1407
1408 EXAMPLE_LIST="
1409     avio_reading_example
1410     avio_dir_cmd_example
1411     decoding_encoding_example
1412     demuxing_decoding_example
1413     extract_mvs_example
1414     filter_audio_example
1415     filtering_audio_example
1416     filtering_video_example
1417     metadata_example
1418     muxing_example
1419     qsvdec_example
1420     remuxing_example
1421     resampling_audio_example
1422     scaling_video_example
1423     transcode_aac_example
1424     transcoding_example
1425 "
1426
1427 EXTERNAL_LIBRARY_LIST="
1428     avisynth
1429     bzlib
1430     chromaprint
1431     crystalhd
1432     decklink
1433     frei0r
1434     gcrypt
1435     gmp
1436     gnutls
1437     iconv
1438     ladspa
1439     libaacplus
1440     libass
1441     libbluray
1442     libbs2b
1443     libcaca
1444     libcdio
1445     libcelt
1446     libdc1394
1447     libdcadec
1448     libfaac
1449     libfdk_aac
1450     libflite
1451     libfontconfig
1452     libfreetype
1453     libfribidi
1454     libgme
1455     libgsm
1456     libiec61883
1457     libilbc
1458     libkvazaar
1459     libmfx
1460     libmodplug
1461     libmp3lame
1462     libnut
1463     libopencore_amrnb
1464     libopencore_amrwb
1465     libopencv
1466     libopenh264
1467     libopenjpeg
1468     libopus
1469     libpulse
1470     libquvi
1471     librtmp
1472     librubberband
1473     libschroedinger
1474     libshine
1475     libsmbclient
1476     libsnappy
1477     libsoxr
1478     libspeex
1479     libssh
1480     libtesseract
1481     libtheora
1482     libtwolame
1483     libutvideo
1484     libv4l2
1485     libvidstab
1486     libvo_aacenc
1487     libvo_amrwbenc
1488     libvorbis
1489     libvpx
1490     libwavpack
1491     libwebp
1492     libx264
1493     libx265
1494     libxavs
1495     libxcb
1496     libxcb_shm
1497     libxcb_shape
1498     libxcb_xfixes
1499     libxvid
1500     libzimg
1501     libzmq
1502     libzvbi
1503     lzma
1504     mmal
1505     netcdf
1506     nvenc
1507     openal
1508     opencl
1509     opengl
1510     openssl
1511     schannel
1512     sdl
1513     securetransport
1514     x11grab
1515     xlib
1516     zlib
1517 "
1518
1519 DOCUMENT_LIST="
1520     doc
1521     htmlpages
1522     manpages
1523     podpages
1524     txtpages
1525 "
1526
1527 FEATURE_LIST="
1528     ftrapv
1529     gray
1530     hardcoded_tables
1531     runtime_cpudetect
1532     safe_bitstream_reader
1533     shared
1534     small
1535     static
1536     swscale_alpha
1537 "
1538
1539 HWACCEL_LIST="
1540     d3d11va
1541     dxva2
1542     vaapi
1543     vda
1544     vdpau
1545     videotoolbox
1546     xvmc
1547 "
1548
1549 LIBRARY_LIST="
1550     avcodec
1551     avdevice
1552     avfilter
1553     avformat
1554     avresample
1555     avutil
1556     postproc
1557     swresample
1558     swscale
1559 "
1560
1561 LICENSE_LIST="
1562     gpl
1563     nonfree
1564     version3
1565 "
1566
1567 PROGRAM_LIST="
1568     ffplay
1569     ffprobe
1570     ffserver
1571     ffmpeg
1572 "
1573
1574 SUBSYSTEM_LIST="
1575     dct
1576     dwt
1577     error_resilience
1578     faan
1579     fast_unaligned
1580     fft
1581     lsp
1582     lzo
1583     mdct
1584     pixelutils
1585     network
1586     rdft
1587 "
1588
1589 CONFIG_LIST="
1590     $COMPONENT_LIST
1591     $DOCUMENT_LIST
1592     $EXAMPLE_LIST
1593     $EXTERNAL_LIBRARY_LIST
1594     $FEATURE_LIST
1595     $HWACCEL_LIST
1596     $LICENSE_LIST
1597     $LIBRARY_LIST
1598     $PROGRAM_LIST
1599     $SUBSYSTEM_LIST
1600     fontconfig
1601     incompatible_libav_abi
1602     memalign_hack
1603     memory_poisoning
1604     neon_clobber_test
1605     pic
1606     pod2man
1607     raise_major
1608     thumb
1609     valgrind_backtrace
1610     xmm_clobber_test
1611 "
1612
1613 THREADS_LIST="
1614     pthreads
1615     os2threads
1616     w32threads
1617 "
1618
1619 ATOMICS_LIST="
1620     atomics_gcc
1621     atomics_suncc
1622     atomics_win32
1623 "
1624
1625 ARCH_LIST="
1626     aarch64
1627     alpha
1628     arm
1629     avr32
1630     avr32_ap
1631     avr32_uc
1632     bfin
1633     ia64
1634     m68k
1635     mips
1636     mips64
1637     parisc
1638     ppc
1639     ppc64
1640     s390
1641     sh4
1642     sparc
1643     sparc64
1644     tilegx
1645     tilepro
1646     tomi
1647     x86
1648     x86_32
1649     x86_64
1650 "
1651
1652 ARCH_EXT_LIST_ARM="
1653     armv5te
1654     armv6
1655     armv6t2
1656     armv8
1657     neon
1658     vfp
1659     vfpv3
1660     setend
1661 "
1662
1663 ARCH_EXT_LIST_MIPS="
1664     mipsfpu
1665     mips32r2
1666     mips64r2
1667     mips32r6
1668     mips64r6
1669     mipsdsp
1670     mipsdspr2
1671     msa
1672 "
1673
1674 ARCH_EXT_LIST_LOONGSON="
1675     loongson2
1676     loongson3
1677     mmi
1678 "
1679
1680 ARCH_EXT_LIST_X86_SIMD="
1681     aesni
1682     amd3dnow
1683     amd3dnowext
1684     avx
1685     avx2
1686     fma3
1687     fma4
1688     mmx
1689     mmxext
1690     sse
1691     sse2
1692     sse3
1693     sse4
1694     sse42
1695     ssse3
1696     xop
1697 "
1698
1699 ARCH_EXT_LIST_PPC="
1700     altivec
1701     dcbzl
1702     ldbrx
1703     power8
1704     ppc4xx
1705     vsx
1706 "
1707
1708 ARCH_EXT_LIST_X86="
1709     $ARCH_EXT_LIST_X86_SIMD
1710     cpunop
1711     i686
1712 "
1713
1714 ARCH_EXT_LIST="
1715     $ARCH_EXT_LIST_ARM
1716     $ARCH_EXT_LIST_PPC
1717     $ARCH_EXT_LIST_X86
1718     $ARCH_EXT_LIST_MIPS
1719     $ARCH_EXT_LIST_LOONGSON
1720 "
1721
1722 ARCH_FEATURES="
1723     aligned_stack
1724     fast_64bit
1725     fast_clz
1726     fast_cmov
1727     local_aligned_8
1728     local_aligned_16
1729     local_aligned_32
1730     simd_align_16
1731 "
1732
1733 BUILTIN_LIST="
1734     atomic_cas_ptr
1735     atomic_compare_exchange
1736     machine_rw_barrier
1737     MemoryBarrier
1738     mm_empty
1739     rdtsc
1740     sarestart
1741     sync_val_compare_and_swap
1742 "
1743 HAVE_LIST_CMDLINE="
1744     inline_asm
1745     symver
1746     yasm
1747 "
1748
1749 HAVE_LIST_PUB="
1750     bigendian
1751     fast_unaligned
1752     incompatible_libav_abi
1753 "
1754
1755 HEADERS_LIST="
1756     alsa_asoundlib_h
1757     altivec_h
1758     arpa_inet_h
1759     asm_types_h
1760     cdio_paranoia_h
1761     cdio_paranoia_paranoia_h
1762     dev_bktr_ioctl_bt848_h
1763     dev_bktr_ioctl_meteor_h
1764     dev_ic_bt8xx_h
1765     dev_video_bktr_ioctl_bt848_h
1766     dev_video_meteor_ioctl_meteor_h
1767     direct_h
1768     dirent_h
1769     dlfcn_h
1770     d3d11_h
1771     dxva_h
1772     ES2_gl_h
1773     gsm_h
1774     io_h
1775     mach_mach_time_h
1776     machine_ioctl_bt848_h
1777     machine_ioctl_meteor_h
1778     malloc_h
1779     openjpeg_2_1_openjpeg_h
1780     openjpeg_2_0_openjpeg_h
1781     openjpeg_1_5_openjpeg_h
1782     OpenGL_gl3_h
1783     poll_h
1784     sndio_h
1785     soundcard_h
1786     sys_mman_h
1787     sys_param_h
1788     sys_resource_h
1789     sys_select_h
1790     sys_soundcard_h
1791     sys_time_h
1792     sys_un_h
1793     sys_videoio_h
1794     termios_h
1795     udplite_h
1796     unistd_h
1797     valgrind_valgrind_h
1798     windows_h
1799     winsock2_h
1800 "
1801
1802 INTRINSICS_LIST="
1803     intrinsics_neon
1804 "
1805
1806 COMPLEX_FUNCS="
1807     cabs
1808     cexp
1809 "
1810
1811 MATH_FUNCS="
1812     atanf
1813     atan2f
1814     cbrt
1815     cbrtf
1816     copysign
1817     cosf
1818     erf
1819     exp2
1820     exp2f
1821     expf
1822     hypot
1823     isinf
1824     isnan
1825     ldexpf
1826     llrint
1827     llrintf
1828     log2
1829     log2f
1830     log10f
1831     lrint
1832     lrintf
1833     powf
1834     rint
1835     round
1836     roundf
1837     sinf
1838     trunc
1839     truncf
1840 "
1841
1842 SYSTEM_FUNCS="
1843     access
1844     aligned_malloc
1845     arc4random
1846     clock_gettime
1847     closesocket
1848     CommandLineToArgvW
1849     CoTaskMemFree
1850     CryptGenRandom
1851     dlopen
1852     fcntl
1853     flt_lim
1854     fork
1855     getaddrinfo
1856     gethrtime
1857     getopt
1858     GetProcessAffinityMask
1859     GetProcessMemoryInfo
1860     GetProcessTimes
1861     getrusage
1862     GetSystemTimeAsFileTime
1863     gettimeofday
1864     glob
1865     glXGetProcAddress
1866     gmtime_r
1867     inet_aton
1868     isatty
1869     jack_port_get_latency_range
1870     kbhit
1871     localtime_r
1872     lstat
1873     lzo1x_999_compress
1874     mach_absolute_time
1875     MapViewOfFile
1876     memalign
1877     mkstemp
1878     mmap
1879     mprotect
1880     nanosleep
1881     PeekNamedPipe
1882     posix_memalign
1883     pthread_cancel
1884     sched_getaffinity
1885     SetConsoleTextAttribute
1886     SetConsoleCtrlHandler
1887     setmode
1888     setrlimit
1889     Sleep
1890     strerror_r
1891     sysconf
1892     sysctl
1893     usleep
1894     UTGetOSTypeFromString
1895     VirtualAlloc
1896     wglGetProcAddress
1897 "
1898
1899 TOOLCHAIN_FEATURES="
1900     as_dn_directive
1901     as_func
1902     as_object_arch
1903     asm_mod_q
1904     attribute_may_alias
1905     attribute_packed
1906     ebp_available
1907     ebx_available
1908     gnu_as
1909     gnu_windres
1910     ibm_asm
1911     inline_asm_labels
1912     inline_asm_nonlocal_labels
1913     inline_asm_direct_symbol_refs
1914     pragma_deprecated
1915     rsync_contimeout
1916     symver_asm_label
1917     symver_gnu_asm
1918     vfp_args
1919     xform_asm
1920     xmm_clobbers
1921 "
1922
1923 TYPES_LIST="
1924     CONDITION_VARIABLE_Ptr
1925     socklen_t
1926     struct_addrinfo
1927     struct_group_source_req
1928     struct_ip_mreq_source
1929     struct_ipv6_mreq
1930     struct_pollfd
1931     struct_rusage_ru_maxrss
1932     struct_sctp_event_subscribe
1933     struct_sockaddr_in6
1934     struct_sockaddr_sa_len
1935     struct_sockaddr_storage
1936     struct_stat_st_mtim_tv_nsec
1937     struct_v4l2_frmivalenum_discrete
1938 "
1939
1940 HAVE_LIST="
1941     $ARCH_EXT_LIST
1942     $(add_suffix _external $ARCH_EXT_LIST)
1943     $(add_suffix _inline   $ARCH_EXT_LIST)
1944     $ARCH_FEATURES
1945     $ATOMICS_LIST
1946     $BUILTIN_LIST
1947     $COMPLEX_FUNCS
1948     $HAVE_LIST_CMDLINE
1949     $HAVE_LIST_PUB
1950     $HEADERS_LIST
1951     $INTRINSICS_LIST
1952     $MATH_FUNCS
1953     $SYSTEM_FUNCS
1954     $THREADS_LIST
1955     $TOOLCHAIN_FEATURES
1956     $TYPES_LIST
1957     atomics_native
1958     dos_paths
1959     dxva2api_cobj
1960     dxva2_lib
1961     winrt
1962     libc_msvcrt
1963     libdc1394_1
1964     libdc1394_2
1965     makeinfo
1966     makeinfo_html
1967     perl
1968     pod2man
1969     sdl
1970     section_data_rel_ro
1971     texi2html
1972     threads
1973     vaapi_x11
1974     vdpau_x11
1975     xlib
1976 "
1977
1978 # options emitted with CONFIG_ prefix but not available on the command line
1979 CONFIG_EXTRA="
1980     aandcttables
1981     ac3dsp
1982     audio_frame_queue
1983     audiodsp
1984     blockdsp
1985     bswapdsp
1986     cabac
1987     dirac_parse
1988     dvprofile
1989     exif
1990     faandct
1991     faanidct
1992     fdctdsp
1993     flacdsp
1994     fmtconvert
1995     frame_thread_encoder
1996     g722dsp
1997     golomb
1998     gplv3
1999     h263dsp
2000     h264chroma
2001     h264dsp
2002     h264pred
2003     h264qpel
2004     hpeldsp
2005     huffman
2006     huffyuvdsp
2007     huffyuvencdsp
2008     idctdsp
2009     iirfilter
2010     imdct15
2011     intrax8
2012     ividsp
2013     jpegtables
2014     libx262
2015     lgplv3
2016     llauddsp
2017     llviddsp
2018     lpc
2019     lzf
2020     me_cmp
2021     mpeg_er
2022     mpegaudio
2023     mpegaudiodsp
2024     mpegvideo
2025     mpegvideoenc
2026     mss34dsp
2027     pixblockdsp
2028     qpeldsp
2029     qsv
2030     qsvdec
2031     qsvenc
2032     rangecoder
2033     riffdec
2034     riffenc
2035     rtpdec
2036     rtpenc_chain
2037     rv34dsp
2038     sinewin
2039     snappy
2040     startcode
2041     texturedsp
2042     texturedspenc
2043     tpeldsp
2044     videodsp
2045     vp3dsp
2046     vp56dsp
2047     vp8dsp
2048     wma_freqs
2049     wmv2dsp
2050 "
2051
2052 CMDLINE_SELECT="
2053     $ARCH_EXT_LIST
2054     $CONFIG_LIST
2055     $HAVE_LIST_CMDLINE
2056     $THREADS_LIST
2057     asm
2058     cross_compile
2059     debug
2060     extra_warnings
2061     logging
2062     lto
2063     optimizations
2064     rpath
2065     stripping
2066 "
2067
2068 PATHS_LIST="
2069     bindir
2070     datadir
2071     docdir
2072     incdir
2073     libdir
2074     mandir
2075     pkgconfigdir
2076     prefix
2077     shlibdir
2078 "
2079
2080 CMDLINE_SET="
2081     $PATHS_LIST
2082     ar
2083     arch
2084     as
2085     assert_level
2086     build_suffix
2087     cc
2088     objcc
2089     cpu
2090     cross_prefix
2091     custom_allocator
2092     cxx
2093     dep_cc
2094     doxygen
2095     env
2096     extra_version
2097     gas
2098     host_cc
2099     host_cflags
2100     host_ld
2101     host_ldflags
2102     host_libs
2103     host_os
2104     install
2105     ld
2106     logfile
2107     malloc_prefix
2108     nm
2109     optflags
2110     pkg_config
2111     pkg_config_flags
2112     progs_suffix
2113     random_seed
2114     ranlib
2115     samples
2116     strip
2117     sws_max_filter_size
2118     sysinclude
2119     sysroot
2120     target_exec
2121     target_os
2122     target_path
2123     target_samples
2124     tempprefix
2125     toolchain
2126     valgrind
2127     yasmexe
2128 "
2129
2130 CMDLINE_APPEND="
2131     extra_cflags
2132     extra_cxxflags
2133     extra_objcflags
2134     host_cppflags
2135 "
2136
2137 # code dependency declarations
2138
2139 # architecture extensions
2140
2141 armv5te_deps="arm"
2142 armv6_deps="arm"
2143 armv6t2_deps="arm"
2144 armv8_deps="aarch64"
2145 neon_deps_any="aarch64 arm"
2146 intrinsics_neon_deps="neon"
2147 vfp_deps_any="aarch64 arm"
2148 vfpv3_deps="vfp"
2149 setend_deps="arm"
2150
2151 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2152
2153 mipsfpu_deps="mips"
2154 mipsdsp_deps="mips"
2155 mipsdspr2_deps="mips"
2156 mips32r2_deps="mips"
2157 mips32r6_deps="mips"
2158 mips64r2_deps="mips"
2159 mips64r6_deps="mips"
2160 msa_deps="mips"
2161 mmi_deps="mips"
2162
2163 altivec_deps="ppc"
2164 dcbzl_deps="ppc"
2165 ldbrx_deps="ppc"
2166 ppc4xx_deps="ppc"
2167 vsx_deps="altivec"
2168 power8_deps="vsx"
2169
2170 cpunop_deps="i686"
2171 x86_64_select="i686"
2172 x86_64_suggest="fast_cmov"
2173
2174 amd3dnow_deps="mmx"
2175 amd3dnowext_deps="amd3dnow"
2176 i686_deps="x86"
2177 mmx_deps="x86"
2178 mmxext_deps="mmx"
2179 sse_deps="mmxext"
2180 sse2_deps="sse"
2181 sse3_deps="sse2"
2182 ssse3_deps="sse3"
2183 sse4_deps="ssse3"
2184 sse42_deps="sse4"
2185 aesni_deps="sse42"
2186 avx_deps="sse42"
2187 xop_deps="avx"
2188 fma3_deps="avx"
2189 fma4_deps="avx"
2190 avx2_deps="avx"
2191
2192 mmx_external_deps="yasm"
2193 mmx_inline_deps="inline_asm"
2194 mmx_suggest="mmx_external mmx_inline"
2195
2196 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2197     eval dep=\$${ext}_deps
2198     eval ${ext}_external_deps='"${dep}_external"'
2199     eval ${ext}_inline_deps='"${dep}_inline"'
2200     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2201 done
2202
2203 aligned_stack_if_any="aarch64 ppc x86"
2204 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2205 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2206 fast_unaligned_if_any="aarch64 ppc x86"
2207 simd_align_16_if_any="altivec neon sse"
2208
2209 # system capabilities
2210 symver_if_any="symver_asm_label symver_gnu_asm"
2211 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2212
2213 # threading support
2214 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2215 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2216 atomics_win32_if="MemoryBarrier"
2217 atomics_native_if_any="$ATOMICS_LIST"
2218 w32threads_deps="atomics_native"
2219 threads_if_any="$THREADS_LIST"
2220
2221 # subsystems
2222 dct_select="rdft"
2223 dirac_parse_select="golomb"
2224 error_resilience_select="me_cmp"
2225 faandct_deps="faan fdctdsp"
2226 faanidct_deps="faan idctdsp"
2227 frame_thread_encoder_deps="encoders threads"
2228 intrax8_select="error_resilience"
2229 mdct_select="fft"
2230 rdft_select="fft"
2231 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2232 mpeg_er_select="error_resilience"
2233 mpegaudio_select="mpegaudiodsp"
2234 mpegaudiodsp_select="dct"
2235 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2236 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2237 qsvdec_select="qsv"
2238 qsvenc_select="qsv"
2239
2240 # decoders / encoders
2241 aac_decoder_select="imdct15 mdct sinewin"
2242 aac_fixed_decoder_select="mdct sinewin"
2243 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2244 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2245 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2246 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2247 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2248 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2249 adpcm_g722_decoder_select="g722dsp"
2250 adpcm_g722_encoder_select="g722dsp"
2251 aic_decoder_select="golomb idctdsp"
2252 alac_encoder_select="lpc"
2253 als_decoder_select="bswapdsp"
2254 amrnb_decoder_select="lsp"
2255 amrwb_decoder_select="lsp"
2256 amv_decoder_select="sp5x_decoder exif"
2257 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2258 ape_decoder_select="bswapdsp llauddsp"
2259 apng_decoder_select="zlib"
2260 apng_encoder_select="huffyuvencdsp zlib"
2261 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2262 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2263 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2264 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2265 atrac1_decoder_select="mdct sinewin"
2266 atrac3_decoder_select="mdct"
2267 atrac3p_decoder_select="mdct sinewin"
2268 avrn_decoder_select="exif jpegtables"
2269 bink_decoder_select="blockdsp hpeldsp"
2270 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2271 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2272 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2273 cllc_decoder_select="bswapdsp"
2274 comfortnoise_encoder_select="lpc"
2275 cook_decoder_select="audiodsp mdct sinewin"
2276 cscd_decoder_select="lzo"
2277 cscd_decoder_suggest="zlib"
2278 dca_decoder_select="fmtconvert mdct"
2279 dds_decoder_select="texturedsp"
2280 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2281 dnxhd_decoder_select="blockdsp idctdsp"
2282 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2283 dvvideo_decoder_select="dvprofile idctdsp"
2284 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2285 dxa_decoder_select="zlib"
2286 dxv_decoder_select="lzf texturedsp"
2287 eac3_decoder_select="ac3_decoder"
2288 eac3_encoder_select="ac3_encoder"
2289 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2290 eatgq_decoder_select="aandcttables"
2291 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2292 exr_decoder_select="zlib"
2293 ffv1_decoder_select="golomb rangecoder"
2294 ffv1_encoder_select="rangecoder"
2295 ffvhuff_decoder_select="huffyuv_decoder"
2296 ffvhuff_encoder_select="huffyuv_encoder"
2297 fic_decoder_select="golomb"
2298 flac_decoder_select="flacdsp golomb"
2299 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2300 flashsv_decoder_select="zlib"
2301 flashsv_encoder_select="zlib"
2302 flashsv2_encoder_select="zlib"
2303 flashsv2_decoder_select="zlib"
2304 flv_decoder_select="h263_decoder"
2305 flv_encoder_select="h263_encoder"
2306 fourxm_decoder_select="blockdsp bswapdsp"
2307 fraps_decoder_select="bswapdsp huffman"
2308 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2309 g729_decoder_select="audiodsp"
2310 h261_decoder_select="mpegvideo"
2311 h261_encoder_select="aandcttables mpegvideoenc"
2312 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2313 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2314 h263i_decoder_select="h263_decoder"
2315 h263p_decoder_select="h263_decoder"
2316 h263p_encoder_select="h263_encoder"
2317 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2318 h264_decoder_suggest="error_resilience"
2319 h264_qsv_decoder_deps="libmfx"
2320 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2321 h264_qsv_encoder_deps="libmfx"
2322 h264_qsv_encoder_select="qsvenc"
2323 hap_decoder_select="snappy texturedsp"
2324 hap_encoder_deps="libsnappy"
2325 hap_encoder_select="texturedspenc"
2326 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2327 hevc_qsv_encoder_deps="libmfx"
2328 hevc_qsv_decoder_deps="libmfx"
2329 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2330 hevc_qsv_encoder_select="qsvenc"
2331 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2332 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2333 iac_decoder_select="imc_decoder"
2334 imc_decoder_select="bswapdsp fft mdct sinewin"
2335 indeo3_decoder_select="hpeldsp"
2336 indeo4_decoder_select="ividsp"
2337 indeo5_decoder_select="ividsp"
2338 interplay_video_decoder_select="hpeldsp"
2339 jpegls_decoder_select="golomb mjpeg_decoder"
2340 jpegls_encoder_select="golomb"
2341 jv_decoder_select="blockdsp"
2342 lagarith_decoder_select="huffyuvdsp"
2343 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2344 loco_decoder_select="golomb"
2345 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2346 metasound_decoder_select="lsp mdct sinewin"
2347 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2348 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2349 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2350 mjpegb_decoder_select="mjpeg_decoder"
2351 mlp_decoder_select="mlp_parser"
2352 motionpixels_decoder_select="bswapdsp"
2353 mp1_decoder_select="mpegaudio"
2354 mp1float_decoder_select="mpegaudio"
2355 mp2_decoder_select="mpegaudio"
2356 mp2float_decoder_select="mpegaudio"
2357 mp3_decoder_select="mpegaudio"
2358 mp3adu_decoder_select="mpegaudio"
2359 mp3adufloat_decoder_select="mpegaudio"
2360 mp3float_decoder_select="mpegaudio"
2361 mp3on4_decoder_select="mpegaudio"
2362 mp3on4float_decoder_select="mpegaudio"
2363 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2364 mpc8_decoder_select="mpegaudiodsp"
2365 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2366 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2367 mpegvideo_decoder_select="mpegvideo"
2368 mpeg1video_decoder_select="mpegvideo"
2369 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2370 mpeg2video_decoder_select="mpegvideo"
2371 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2372 mpeg2_qsv_decoder_deps="libmfx"
2373 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2374 mpeg2_qsv_encoder_deps="libmfx"
2375 mpeg2_qsv_encoder_select="qsvenc"
2376 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2377 mpeg4_encoder_select="h263_encoder"
2378 msa1_decoder_select="mss34dsp"
2379 msmpeg4v1_decoder_select="h263_decoder"
2380 msmpeg4v2_decoder_select="h263_decoder"
2381 msmpeg4v2_encoder_select="h263_encoder"
2382 msmpeg4v3_decoder_select="h263_decoder"
2383 msmpeg4v3_encoder_select="h263_encoder"
2384 mss2_decoder_select="vc1_decoder"
2385 mts2_decoder_select="mss34dsp"
2386 mxpeg_decoder_select="mjpeg_decoder"
2387 nellymoser_decoder_select="mdct sinewin"
2388 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2389 nuv_decoder_select="idctdsp lzo"
2390 on2avc_decoder_select="mdct"
2391 opus_decoder_deps="swresample"
2392 opus_decoder_select="imdct15"
2393 png_decoder_select="zlib"
2394 png_encoder_select="huffyuvencdsp zlib"
2395 prores_decoder_select="blockdsp idctdsp"
2396 prores_encoder_select="fdctdsp"
2397 qcelp_decoder_select="lsp"
2398 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2399 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2400 ra_144_decoder_select="audiodsp"
2401 ralf_decoder_select="golomb"
2402 rawvideo_decoder_select="bswapdsp"
2403 rscc_decoder_select="zlib"
2404 rtjpeg_decoder_select="me_cmp"
2405 rv10_decoder_select="h263_decoder"
2406 rv10_encoder_select="h263_encoder"
2407 rv20_decoder_select="h263_decoder"
2408 rv20_encoder_select="h263_encoder"
2409 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2410 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2411 screenpresso_decoder_select="zlib"
2412 shorten_decoder_select="golomb"
2413 sipr_decoder_select="lsp"
2414 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2415 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2416 sonic_decoder_select="golomb rangecoder"
2417 sonic_encoder_select="golomb rangecoder"
2418 sonic_ls_encoder_select="golomb rangecoder"
2419 sp5x_decoder_select="mjpeg_decoder"
2420 svq1_decoder_select="hpeldsp"
2421 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2422 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2423 svq3_decoder_suggest="zlib"
2424 tak_decoder_select="audiodsp"
2425 tdsc_decoder_select="zlib mjpeg_decoder"
2426 theora_decoder_select="vp3_decoder"
2427 thp_decoder_select="mjpeg_decoder"
2428 tiff_decoder_suggest="zlib lzma"
2429 tiff_encoder_suggest="zlib"
2430 truehd_decoder_select="mlp_parser"
2431 truemotion2_decoder_select="bswapdsp"
2432 truespeech_decoder_select="bswapdsp"
2433 tscc_decoder_select="zlib"
2434 twinvq_decoder_select="mdct lsp sinewin"
2435 txd_decoder_select="texturedsp"
2436 utvideo_decoder_select="bswapdsp"
2437 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2438 vble_decoder_select="huffyuvdsp"
2439 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2440 vc1image_decoder_select="vc1_decoder"
2441 vc1_qsv_decoder_deps="libmfx"
2442 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2443 vorbis_decoder_select="mdct"
2444 vorbis_encoder_select="mdct"
2445 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2446 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2447 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2448 vp6a_decoder_select="vp6_decoder"
2449 vp6f_decoder_select="vp6_decoder"
2450 vp7_decoder_select="h264pred videodsp vp8dsp"
2451 vp8_decoder_select="h264pred videodsp vp8dsp"
2452 vp9_decoder_select="videodsp vp9_parser"
2453 webp_decoder_select="vp8_decoder"
2454 wmalossless_decoder_select="llauddsp"
2455 wmapro_decoder_select="mdct sinewin wma_freqs"
2456 wmav1_decoder_select="mdct sinewin wma_freqs"
2457 wmav1_encoder_select="mdct sinewin wma_freqs"
2458 wmav2_decoder_select="mdct sinewin wma_freqs"
2459 wmav2_encoder_select="mdct sinewin wma_freqs"
2460 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2461 wmv1_decoder_select="h263_decoder"
2462 wmv1_encoder_select="h263_encoder"
2463 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2464 wmv2_encoder_select="h263_encoder wmv2dsp"
2465 wmv3_decoder_select="vc1_decoder"
2466 wmv3image_decoder_select="wmv3_decoder"
2467 zerocodec_decoder_select="zlib"
2468 zlib_decoder_select="zlib"
2469 zlib_encoder_select="zlib"
2470 zmbv_decoder_select="zlib"
2471 zmbv_encoder_select="zlib"
2472
2473 # hardware accelerators
2474 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2475 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2476 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2477 vaapi_deps="va_va_h"
2478 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2479 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2480 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2481 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2482 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2483 xvmc_deps="X11_extensions_XvMClib_h"
2484
2485 h263_vaapi_hwaccel_deps="vaapi"
2486 h263_vaapi_hwaccel_select="h263_decoder"
2487 h263_videotoolbox_hwaccel_deps="videotoolbox"
2488 h263_videotoolbox_hwaccel_select="h263_decoder"
2489 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2490 h264_d3d11va_hwaccel_deps="d3d11va"
2491 h264_d3d11va_hwaccel_select="h264_decoder"
2492 h264_dxva2_hwaccel_deps="dxva2"
2493 h264_dxva2_hwaccel_select="h264_decoder"
2494 h264_mmal_decoder_deps="mmal"
2495 h264_mmal_hwaccel_deps="mmal"
2496 h264_mmal_decoder_select="h264_decoder"
2497 h264_mmal_encoder_deps="mmal"
2498 h264_qsv_hwaccel_deps="libmfx"
2499 h264_vaapi_hwaccel_deps="vaapi"
2500 h264_vaapi_hwaccel_select="h264_decoder"
2501 h264_vda_decoder_deps="vda"
2502 h264_vda_decoder_select="h264_decoder"
2503 h264_vda_hwaccel_deps="vda"
2504 h264_vda_hwaccel_select="h264_decoder"
2505 h264_vda_old_hwaccel_deps="vda"
2506 h264_vda_old_hwaccel_select="h264_decoder"
2507 h264_vdpau_decoder_deps="vdpau"
2508 h264_vdpau_decoder_select="h264_decoder"
2509 h264_vdpau_hwaccel_deps="vdpau"
2510 h264_vdpau_hwaccel_select="h264_decoder"
2511 h264_videotoolbox_hwaccel_deps="videotoolbox"
2512 h264_videotoolbox_hwaccel_select="h264_decoder"
2513 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2514 hevc_d3d11va_hwaccel_select="hevc_decoder"
2515 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2516 hevc_dxva2_hwaccel_select="hevc_decoder"
2517 hevc_qsv_hwaccel_deps="libmfx"
2518 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2519 hevc_vaapi_hwaccel_select="hevc_decoder"
2520 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2521 hevc_vdpau_hwaccel_select="hevc_decoder"
2522 mpeg_vdpau_decoder_deps="vdpau"
2523 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2524 mpeg_xvmc_hwaccel_deps="xvmc"
2525 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2526 mpeg1_vdpau_decoder_deps="vdpau"
2527 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2528 mpeg1_vdpau_hwaccel_deps="vdpau"
2529 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2530 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2531 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2532 mpeg1_xvmc_hwaccel_deps="xvmc"
2533 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2534 mpeg2_crystalhd_decoder_select="crystalhd"
2535 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2536 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2537 mpeg2_dxva2_hwaccel_deps="dxva2"
2538 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2539 mpeg2_mmal_decoder_deps="mmal"
2540 mpeg2_mmal_hwaccel_deps="mmal"
2541 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2542 mpeg2_qsv_hwaccel_deps="libmfx"
2543 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2544 mpeg2_vaapi_hwaccel_deps="vaapi"
2545 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2546 mpeg2_vdpau_hwaccel_deps="vdpau"
2547 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2548 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2549 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2550 mpeg2_xvmc_hwaccel_deps="xvmc"
2551 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2552 mpeg4_crystalhd_decoder_select="crystalhd"
2553 mpeg4_vaapi_hwaccel_deps="vaapi"
2554 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2555 mpeg4_vdpau_decoder_deps="vdpau"
2556 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2557 mpeg4_vdpau_hwaccel_deps="vdpau"
2558 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2559 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2560 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2561 msmpeg4_crystalhd_decoder_select="crystalhd"
2562 vc1_crystalhd_decoder_select="crystalhd"
2563 vc1_d3d11va_hwaccel_deps="d3d11va"
2564 vc1_d3d11va_hwaccel_select="vc1_decoder"
2565 vc1_dxva2_hwaccel_deps="dxva2"
2566 vc1_dxva2_hwaccel_select="vc1_decoder"
2567 vc1_vaapi_hwaccel_deps="vaapi"
2568 vc1_vaapi_hwaccel_select="vc1_decoder"
2569 vc1_vdpau_decoder_deps="vdpau"
2570 vc1_vdpau_decoder_select="vc1_decoder"
2571 vc1_vdpau_hwaccel_deps="vdpau"
2572 vc1_vdpau_hwaccel_select="vc1_decoder"
2573 vc1_mmal_decoder_deps="mmal"
2574 vc1_mmal_hwaccel_deps="mmal"
2575 vc1_mmal_decoder_select="vc1_decoder"
2576 vc1_qsv_hwaccel_deps="libmfx"
2577 vc1_qsv_hwaccel_select="qsvdec_vc1"
2578 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2579 vp9_d3d11va_hwaccel_select="vp9_decoder"
2580 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2581 vp9_dxva2_hwaccel_select="vp9_decoder"
2582 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2583 vp9_vaapi_hwaccel_select="vp9_decoder"
2584 wmv3_crystalhd_decoder_select="crystalhd"
2585 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2586 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2587 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2588 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2589 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2590
2591 # parsers
2592 h264_parser_select="h264_decoder"
2593 hevc_parser_select="golomb"
2594 mpegvideo_parser_select="mpegvideo"
2595 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2596 vc1_parser_select="mpegvideo startcode vc1_decoder"
2597
2598 # bitstream_filters
2599 mjpeg2jpeg_bsf_select="jpegtables"
2600
2601 # external libraries
2602 chromaprint_muxer_deps="chromaprint"
2603 libaacplus_encoder_deps="libaacplus"
2604 libcelt_decoder_deps="libcelt"
2605 libdcadec_decoder_deps="libdcadec"
2606 libfaac_encoder_deps="libfaac"
2607 libfaac_encoder_select="audio_frame_queue"
2608 libfdk_aac_decoder_deps="libfdk_aac"
2609 libfdk_aac_encoder_deps="libfdk_aac"
2610 libfdk_aac_encoder_select="audio_frame_queue"
2611 libgme_demuxer_deps="libgme"
2612 libgsm_decoder_deps="libgsm"
2613 libgsm_encoder_deps="libgsm"
2614 libgsm_ms_decoder_deps="libgsm"
2615 libgsm_ms_encoder_deps="libgsm"
2616 libilbc_decoder_deps="libilbc"
2617 libilbc_encoder_deps="libilbc"
2618 libkvazaar_encoder_deps="libkvazaar"
2619 libmodplug_demuxer_deps="libmodplug"
2620 libmp3lame_encoder_deps="libmp3lame"
2621 libmp3lame_encoder_select="audio_frame_queue"
2622 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2623 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2624 libopencore_amrnb_encoder_select="audio_frame_queue"
2625 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2626 libopenh264_encoder_deps="libopenh264"
2627 libopenjpeg_decoder_deps="libopenjpeg"
2628 libopenjpeg_encoder_deps="libopenjpeg"
2629 libopus_decoder_deps="libopus"
2630 libopus_encoder_deps="libopus"
2631 libopus_encoder_select="audio_frame_queue"
2632 libquvi_demuxer_deps="libquvi"
2633 libschroedinger_decoder_deps="libschroedinger"
2634 libschroedinger_encoder_deps="libschroedinger"
2635 libshine_encoder_deps="libshine"
2636 libshine_encoder_select="audio_frame_queue"
2637 libspeex_decoder_deps="libspeex"
2638 libspeex_encoder_deps="libspeex"
2639 libspeex_encoder_select="audio_frame_queue"
2640 libtheora_encoder_deps="libtheora"
2641 libtwolame_encoder_deps="libtwolame"
2642 libvo_aacenc_encoder_deps="libvo_aacenc"
2643 libvo_aacenc_encoder_select="audio_frame_queue"
2644 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2645 libvorbis_decoder_deps="libvorbis"
2646 libvorbis_encoder_deps="libvorbis"
2647 libvorbis_encoder_select="audio_frame_queue"
2648 libvpx_vp8_decoder_deps="libvpx"
2649 libvpx_vp8_encoder_deps="libvpx"
2650 libvpx_vp9_decoder_deps="libvpx"
2651 libvpx_vp9_encoder_deps="libvpx"
2652 libwavpack_encoder_deps="libwavpack"
2653 libwebp_encoder_deps="libwebp"
2654 libwebp_anim_encoder_deps="libwebp"
2655 libx262_encoder_deps="libx262"
2656 libx264_encoder_deps="libx264"
2657 libx264rgb_encoder_deps="libx264"
2658 libx264rgb_encoder_select="libx264_encoder"
2659 libx265_encoder_deps="libx265"
2660 libxavs_encoder_deps="libxavs"
2661 libxvid_encoder_deps="libxvid"
2662 libutvideo_decoder_deps="libutvideo"
2663 libutvideo_encoder_deps="libutvideo"
2664 libzvbi_teletext_decoder_deps="libzvbi"
2665 nvenc_encoder_deps="nvenc"
2666 nvenc_h264_encoder_deps="nvenc"
2667 nvenc_hevc_encoder_deps="nvenc"
2668
2669 # demuxers / muxers
2670 ac3_demuxer_select="ac3_parser"
2671 asf_demuxer_select="riffdec"
2672 asf_o_demuxer_select="riffdec"
2673 asf_muxer_select="riffenc"
2674 asf_stream_muxer_select="asf_muxer"
2675 avi_demuxer_select="riffdec exif"
2676 avi_muxer_select="riffenc"
2677 avisynth_demuxer_deps="avisynth"
2678 avisynth_demuxer_select="riffdec"
2679 caf_demuxer_select="riffdec"
2680 dash_muxer_select="mp4_muxer"
2681 dirac_demuxer_select="dirac_parser"
2682 dts_demuxer_select="dca_parser"
2683 dtshd_demuxer_select="dca_parser"
2684 dv_demuxer_select="dvprofile"
2685 dv_muxer_select="dvprofile"
2686 dxa_demuxer_select="riffdec"
2687 eac3_demuxer_select="ac3_parser"
2688 f4v_muxer_select="mov_muxer"
2689 flac_demuxer_select="flac_parser"
2690 hds_muxer_select="flv_muxer"
2691 hls_muxer_select="mpegts_muxer"
2692 image2_alias_pix_demuxer_select="image2_demuxer"
2693 image2_brender_pix_demuxer_select="image2_demuxer"
2694 ipod_muxer_select="mov_muxer"
2695 ismv_muxer_select="mov_muxer"
2696 libnut_demuxer_deps="libnut"
2697 libnut_muxer_deps="libnut"
2698 matroska_audio_muxer_select="matroska_muxer"
2699 matroska_demuxer_select="riffdec"
2700 matroska_demuxer_suggest="bzlib lzo zlib"
2701 matroska_muxer_select="riffenc"
2702 mmf_muxer_select="riffenc"
2703 mov_demuxer_select="riffdec"
2704 mov_demuxer_suggest="zlib"
2705 mov_muxer_select="riffenc rtpenc_chain"
2706 mp3_demuxer_select="mpegaudio_parser"
2707 mp4_muxer_select="mov_muxer"
2708 mpegts_muxer_select="adts_muxer latm_muxer"
2709 mpegtsraw_demuxer_select="mpegts_demuxer"
2710 mxf_d10_muxer_select="mxf_muxer"
2711 mxf_opatom_muxer_select="mxf_muxer"
2712 nut_muxer_select="riffenc"
2713 nuv_demuxer_select="riffdec"
2714 oga_muxer_select="ogg_muxer"
2715 ogg_demuxer_select="dirac_parse"
2716 opus_muxer_select="ogg_muxer"
2717 psp_muxer_select="mov_muxer"
2718 rtp_demuxer_select="sdp_demuxer"
2719 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2720 rtsp_demuxer_select="http_protocol rtpdec"
2721 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2722 sap_demuxer_select="sdp_demuxer"
2723 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2724 sdp_demuxer_select="rtpdec"
2725 smoothstreaming_muxer_select="ismv_muxer"
2726 spdif_muxer_select="aac_parser"
2727 spx_muxer_select="ogg_muxer"
2728 tak_demuxer_select="tak_parser"
2729 tg2_muxer_select="mov_muxer"
2730 tgp_muxer_select="mov_muxer"
2731 vobsub_demuxer_select="mpegps_demuxer"
2732 w64_demuxer_select="wav_demuxer"
2733 w64_muxer_select="wav_muxer"
2734 wav_demuxer_select="riffdec"
2735 wav_muxer_select="riffenc"
2736 webm_muxer_select="riffenc"
2737 wtv_demuxer_select="riffdec"
2738 wtv_muxer_select="riffenc"
2739 xmv_demuxer_select="riffdec"
2740 xwma_demuxer_select="riffdec"
2741
2742 # indevs / outdevs
2743 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2744 alsa_outdev_deps="alsa_asoundlib_h"
2745 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2746 avfoundation_indev_select="avfoundation"
2747 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2748 caca_outdev_deps="libcaca"
2749 decklink_outdev_deps="decklink pthreads"
2750 decklink_outdev_extralibs="-lstdc++"
2751 decklink_indev_deps="decklink pthreads"
2752 decklink_indev_extralibs="-lstdc++"
2753 dshow_indev_deps="IBaseFilter"
2754 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2755 dv1394_indev_deps="dv1394"
2756 dv1394_indev_select="dv_demuxer"
2757 fbdev_indev_deps="linux_fb_h"
2758 fbdev_outdev_deps="linux_fb_h"
2759 gdigrab_indev_deps="CreateDIBSection"
2760 gdigrab_indev_extralibs="-lgdi32"
2761 gdigrab_indev_select="bmp_decoder"
2762 iec61883_indev_deps="libiec61883"
2763 jack_indev_deps="jack_jack_h sem_timedwait"
2764 lavfi_indev_deps="avfilter"
2765 libcdio_indev_deps="libcdio"
2766 libdc1394_indev_deps="libdc1394"
2767 libv4l2_indev_deps="libv4l2"
2768 openal_indev_deps="openal"
2769 opengl_outdev_deps="opengl"
2770 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2771 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2772 pulse_indev_deps="libpulse"
2773 pulse_outdev_deps="libpulse"
2774 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2775 qtkit_indev_select="qtkit"
2776 sdl_outdev_deps="sdl"
2777 sndio_indev_deps="sndio_h"
2778 sndio_outdev_deps="sndio_h"
2779 v4l_indev_deps="linux_videodev_h"
2780 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2781 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2782 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2783 vfwcap_indev_extralibs="-lavicap32"
2784 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2785 xv_outdev_extralibs="-lXv -lX11 -lXext"
2786 x11grab_indev_deps="x11grab"
2787 x11grab_xcb_indev_deps="libxcb"
2788
2789 # protocols
2790 async_protocol_deps="threads"
2791 bluray_protocol_deps="libbluray"
2792 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2793 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2794 ffrtmpcrypt_protocol_select="tcp_protocol"
2795 ffrtmphttp_protocol_deps="!librtmp_protocol"
2796 ffrtmphttp_protocol_select="http_protocol"
2797 ftp_protocol_select="tcp_protocol"
2798 gopher_protocol_select="network"
2799 http_protocol_select="tcp_protocol"
2800 httpproxy_protocol_select="tcp_protocol"
2801 https_protocol_select="tls_protocol"
2802 icecast_protocol_select="http_protocol"
2803 librtmp_protocol_deps="librtmp"
2804 librtmpe_protocol_deps="librtmp"
2805 librtmps_protocol_deps="librtmp"
2806 librtmpt_protocol_deps="librtmp"
2807 librtmpte_protocol_deps="librtmp"
2808 libsmbclient_protocol_deps="libsmbclient gplv3"
2809 libssh_protocol_deps="libssh"
2810 mmsh_protocol_select="http_protocol"
2811 mmst_protocol_select="network"
2812 rtmp_protocol_deps="!librtmp_protocol"
2813 rtmp_protocol_select="tcp_protocol"
2814 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2815 rtmps_protocol_deps="!librtmp_protocol"
2816 rtmps_protocol_select="tls_protocol"
2817 rtmpt_protocol_select="ffrtmphttp_protocol"
2818 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2819 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2820 rtp_protocol_select="udp_protocol"
2821 sctp_protocol_deps="struct_sctp_event_subscribe"
2822 sctp_protocol_select="network"
2823 srtp_protocol_select="rtp_protocol"
2824 tcp_protocol_select="network"
2825 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2826 tls_gnutls_protocol_select="tcp_protocol"
2827 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2828 tls_openssl_protocol_select="tcp_protocol"
2829 tls_schannel_protocol_deps="schannel"
2830 tls_schannel_protocol_select="tcp_protocol"
2831 tls_securetransport_protocol_deps="securetransport"
2832 tls_securetransport_protocol_select="tcp_protocol"
2833 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2834 udp_protocol_select="network"
2835 udplite_protocol_select="network"
2836 unix_protocol_deps="sys_un_h"
2837 unix_protocol_select="network"
2838
2839 # filters
2840 amovie_filter_deps="avcodec avformat"
2841 aresample_filter_deps="swresample"
2842 ass_filter_deps="libass"
2843 asyncts_filter_deps="avresample"
2844 atempo_filter_deps="avcodec"
2845 atempo_filter_select="rdft"
2846 azmq_filter_deps="libzmq"
2847 blackframe_filter_deps="gpl"
2848 boxblur_filter_deps="gpl"
2849 bs2b_filter_deps="libbs2b"
2850 colormatrix_filter_deps="gpl"
2851 cover_rect_filter_deps="avcodec avformat gpl"
2852 cropdetect_filter_deps="gpl"
2853 delogo_filter_deps="gpl"
2854 deshake_filter_select="pixelutils"
2855 drawtext_filter_deps="libfreetype"
2856 ebur128_filter_deps="gpl"
2857 eq_filter_deps="gpl"
2858 fftfilt_filter_deps="avcodec"
2859 fftfilt_filter_select="rdft"
2860 flite_filter_deps="libflite"
2861 find_rect_filter_deps="avcodec avformat gpl"
2862 frei0r_filter_deps="frei0r dlopen"
2863 frei0r_src_filter_deps="frei0r dlopen"
2864 fspp_filter_deps="gpl"
2865 geq_filter_deps="gpl"
2866 histeq_filter_deps="gpl"
2867 hqdn3d_filter_deps="gpl"
2868 interlace_filter_deps="gpl"
2869 kerndeint_filter_deps="gpl"
2870 ladspa_filter_deps="ladspa dlopen"
2871 mcdeint_filter_deps="avcodec gpl"
2872 movie_filter_deps="avcodec avformat"
2873 mpdecimate_filter_deps="gpl"
2874 mpdecimate_filter_select="pixelutils"
2875 mptestsrc_filter_deps="gpl"
2876 negate_filter_deps="lut_filter"
2877 perspective_filter_deps="gpl"
2878 pp7_filter_deps="gpl"
2879 ocr_filter_deps="libtesseract"
2880 ocv_filter_deps="libopencv"
2881 owdenoise_filter_deps="gpl"
2882 pan_filter_deps="swresample"
2883 phase_filter_deps="gpl"
2884 pp_filter_deps="gpl postproc"
2885 pullup_filter_deps="gpl"
2886 removelogo_filter_deps="avcodec avformat swscale"
2887 repeatfields_filter_deps="gpl"
2888 resample_filter_deps="avresample"
2889 rubberband_filter_deps="librubberband"
2890 sab_filter_deps="gpl swscale"
2891 scale_filter_deps="swscale"
2892 scale2ref_filter_deps="swscale"
2893 select_filter_select="pixelutils"
2894 smartblur_filter_deps="gpl swscale"
2895 showcqt_filter_deps="avcodec avformat swscale"
2896 showcqt_filter_select="fft"
2897 showfreqs_filter_deps="avcodec"
2898 showfreqs_filter_select="fft"
2899 showspectrum_filter_deps="avcodec"
2900 showspectrum_filter_select="rdft"
2901 sofalizer_filter_deps="netcdf avcodec"
2902 sofalizer_filter_select="fft"
2903 spp_filter_deps="gpl avcodec"
2904 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2905 stereo3d_filter_deps="gpl"
2906 subtitles_filter_deps="avformat avcodec libass"
2907 super2xsai_filter_deps="gpl"
2908 tinterlace_filter_deps="gpl"
2909 vidstabdetect_filter_deps="libvidstab"
2910 vidstabtransform_filter_deps="libvidstab"
2911 pixfmts_super2xsai_test_deps="super2xsai_filter"
2912 tinterlace_merge_test_deps="tinterlace_filter"
2913 tinterlace_pad_test_deps="tinterlace_filter"
2914 uspp_filter_deps="gpl avcodec"
2915 zmq_filter_deps="libzmq"
2916 zoompan_filter_deps="swscale"
2917 zscale_filter_deps="libzimg"
2918
2919 # examples
2920 avio_reading="avformat avcodec avutil"
2921 avio_dir_cmd="avformat avutil"
2922 avcodec_example_deps="avcodec avutil"
2923 decoding_encoding_example_deps="avcodec avformat avutil"
2924 demuxing_decoding_example_deps="avcodec avformat avutil"
2925 extract_mvs_example_deps="avcodec avformat avutil"
2926 filter_audio_example_deps="avfilter avutil"
2927 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2928 filtering_video_example_deps="avfilter avcodec avformat avutil"
2929 metadata_example_deps="avformat avutil"
2930 muxing_example_deps="avcodec avformat avutil swscale"
2931 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2932 remuxing_example_deps="avcodec avformat avutil"
2933 resampling_audio_example_deps="avutil swresample"
2934 scaling_video_example_deps="avutil swscale"
2935 transcode_aac_example_deps="avcodec avformat swresample"
2936 transcoding_example_deps="avfilter avcodec avformat avutil"
2937
2938 # libraries, in linking order
2939 avcodec_deps="avutil"
2940 avdevice_deps="avformat avcodec avutil"
2941 avfilter_deps="avutil"
2942 avformat_deps="avcodec avutil"
2943 avresample_deps="avutil"
2944 postproc_deps="avutil gpl"
2945 swresample_deps="avutil"
2946 swscale_deps="avutil"
2947
2948 # programs
2949 ffmpeg_deps="avcodec avfilter avformat swresample"
2950 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2951                null_filter
2952                setpts_filter trim_filter"
2953 ffplay_deps="avcodec avformat swscale swresample sdl"
2954 ffplay_libs='$sdl_libs'
2955 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2956 ffprobe_deps="avcodec avformat"
2957 ffserver_deps="avformat fork sarestart"
2958 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2959
2960 # documentation
2961 podpages_deps="perl"
2962 manpages_deps="perl pod2man"
2963 htmlpages_deps="perl"
2964 htmlpages_deps_any="makeinfo_html texi2html"
2965 txtpages_deps="perl makeinfo"
2966 doc_deps_any="manpages htmlpages podpages txtpages"
2967
2968 # default parameters
2969
2970 logfile="config.log"
2971
2972 # installation paths
2973 prefix_default="/usr/local"
2974 bindir_default='${prefix}/bin'
2975 datadir_default='${prefix}/share/ffmpeg'
2976 docdir_default='${prefix}/share/doc/ffmpeg'
2977 incdir_default='${prefix}/include'
2978 libdir_default='${prefix}/lib'
2979 mandir_default='${prefix}/share/man'
2980
2981 # toolchain
2982 ar_default="ar"
2983 cc_default="gcc"
2984 cxx_default="g++"
2985 host_cc_default="gcc"
2986 cp_f="cp -f"
2987 doxygen_default="doxygen"
2988 install="install"
2989 ln_s="ln -s -f"
2990 nm_default="nm -g"
2991 objformat="elf"
2992 pkg_config_default=pkg-config
2993 ranlib_default="ranlib"
2994 strip_default="strip"
2995 yasmexe_default="yasm"
2996 windres_default="windres"
2997
2998 # OS
2999 target_os_default=$(tolower $(uname -s))
3000 host_os=$target_os_default
3001
3002 # machine
3003 if test "$target_os_default" = aix; then
3004     arch_default=$(uname -p)
3005     strip_default="strip -X32_64"
3006 else
3007     arch_default=$(uname -m)
3008 fi
3009 cpu="generic"
3010 intrinsics="none"
3011
3012 # configurable options
3013 enable $PROGRAM_LIST
3014 enable $DOCUMENT_LIST
3015 enable $EXAMPLE_LIST
3016 enable $(filter_out avresample $LIBRARY_LIST)
3017 enable stripping
3018
3019 enable asm
3020 enable debug
3021 enable doc
3022 enable faan faandct faanidct
3023 enable optimizations
3024 enable runtime_cpudetect
3025 enable safe_bitstream_reader
3026 enable static
3027 enable swscale_alpha
3028 enable valgrind_backtrace
3029
3030 sws_max_filter_size_default=256
3031 set_default sws_max_filter_size
3032
3033 # Enable hwaccels by default.
3034 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3035 enable xlib
3036
3037 # build settings
3038 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3039 LIBPREF="lib"
3040 LIBSUF=".a"
3041 FULLNAME='$(NAME)$(BUILDSUF)'
3042 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3043 SLIBPREF="lib"
3044 SLIBSUF=".so"
3045 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3046 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3047 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3048 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3049 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3050 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3051
3052 asflags_filter=echo
3053 cflags_filter=echo
3054 ldflags_filter=echo
3055
3056 AS_C='-c'
3057 AS_O='-o $@'
3058 CC_C='-c'
3059 CC_E='-E -o $@'
3060 CC_O='-o $@'
3061 CXX_C='-c'
3062 CXX_O='-o $@'
3063 OBJCC_C='-c'
3064 OBJCC_E='-E -o $@'
3065 OBJCC_O='-o $@'
3066 LD_O='-o $@'
3067 LD_LIB='-l%'
3068 LD_PATH='-L'
3069 HOSTCC_C='-c'
3070 HOSTCC_E='-E -o $@'
3071 HOSTCC_O='-o $@'
3072 HOSTLD_O='-o $@'
3073
3074 host_libs='-lm'
3075 host_cflags_filter=echo
3076 host_ldflags_filter=echo
3077
3078 target_path='$(CURDIR)'
3079
3080 # since the object filename is not given with the -MM flag, the compiler
3081 # is only able to print the basename, and we must add the path ourselves
3082 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3083 DEPFLAGS='-MM'
3084
3085 # find source path
3086 if test -f configure; then
3087     source_path=.
3088 else
3089     source_path=$(cd $(dirname "$0"); pwd)
3090     case "$source_path" in
3091         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3092     esac
3093     test -e "$source_path/config.h" &&
3094         die "Out of tree builds are impossible with config.h in source dir."
3095 fi
3096
3097 for v in "$@"; do
3098     r=${v#*=}
3099     l=${v%"$r"}
3100     r=$(sh_quote "$r")
3101     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3102 done
3103
3104 find_things(){
3105     thing=$1
3106     pattern=$2
3107     file=$source_path/$3
3108     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3109 }
3110
3111 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3112 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3113 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3114 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3115 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3116 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3117 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3118 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3119 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3120 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3121 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3122
3123 ALL_COMPONENTS="
3124     $BSF_LIST
3125     $DECODER_LIST
3126     $DEMUXER_LIST
3127     $ENCODER_LIST
3128     $FILTER_LIST
3129     $HWACCEL_LIST
3130     $INDEV_LIST
3131     $MUXER_LIST
3132     $OUTDEV_LIST
3133     $PARSER_LIST
3134     $PROTOCOL_LIST
3135 "
3136
3137 for n in $COMPONENT_LIST; do
3138     v=$(toupper ${n%s})_LIST
3139     eval enable \$$v
3140     eval ${n}_if_any="\$$v"
3141 done
3142
3143 enable $ARCH_EXT_LIST
3144
3145 die_unknown(){
3146     echo "Unknown option \"$1\"."
3147     echo "See $0 --help for available options."
3148     exit 1
3149 }
3150
3151 print_in_columns() {
3152     cols=$(expr $ncols / 24)
3153     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3154 }
3155
3156 show_list() {
3157     suffix=_$1
3158     shift
3159     echo $* | sed s/$suffix//g | print_in_columns
3160     exit 0
3161 }
3162
3163 rand_list(){
3164     IFS=', '
3165     set -- $*
3166     unset IFS
3167     for thing; do
3168         comp=${thing%:*}
3169         prob=${thing#$comp}
3170         prob=${prob#:}
3171         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3172         echo "prob ${prob:-0.5}"
3173         printf '%s\n' $comp
3174     done
3175 }
3176
3177 do_random(){
3178     action=$1
3179     shift
3180     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3181     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3182 }
3183
3184 for opt do
3185     optval="${opt#*=}"
3186     case "$opt" in
3187         --extra-ldflags=*)
3188             add_ldflags $optval
3189         ;;
3190         --extra-ldexeflags=*)
3191             add_ldexeflags $optval
3192         ;;
3193         --extra-ldlibflags=*)
3194             add_ldlibflags $optval
3195         ;;
3196         --extra-libs=*)
3197             add_extralibs $optval
3198         ;;
3199         --disable-devices)
3200             disable $INDEV_LIST $OUTDEV_LIST
3201         ;;
3202         --enable-debug=*)
3203             debuglevel="$optval"
3204         ;;
3205         --disable-programs)
3206             disable $PROGRAM_LIST
3207         ;;
3208         --disable-everything)
3209             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3210         ;;
3211         --disable-all)
3212             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3213             disable $LIBRARY_LIST $PROGRAM_LIST doc
3214             enable avutil
3215         ;;
3216         --enable-random|--disable-random)
3217             action=${opt%%-random}
3218             do_random ${action#--} $COMPONENT_LIST
3219         ;;
3220         --enable-random=*|--disable-random=*)
3221             action=${opt%%-random=*}
3222             do_random ${action#--} $optval
3223         ;;
3224         --enable-*=*|--disable-*=*)
3225             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3226             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3227             eval list=\$$(toupper $thing)_LIST
3228             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3229             list=$(filter "$name" $list)
3230             [ "$list" = "" ] && warn "Option $opt did not match anything"
3231             $action $list
3232         ;;
3233         --enable-?*|--disable-?*)
3234             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3235             if is_in $option $COMPONENT_LIST; then
3236                 test $action = disable && action=unset
3237                 eval $action \$$(toupper ${option%s})_LIST
3238             elif is_in $option $CMDLINE_SELECT; then
3239                 $action $option
3240             else
3241                 die_unknown $opt
3242             fi
3243         ;;
3244         --list-*)
3245             NAME="${opt#--list-}"
3246             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3247             NAME=${NAME%s}
3248             eval show_list $NAME \$$(toupper $NAME)_LIST
3249         ;;
3250         --help|-h) show_help
3251         ;;
3252         --fatal-warnings) enable fatal_warnings
3253         ;;
3254         *)
3255             optname="${opt%%=*}"
3256             optname="${optname#--}"
3257             optname=$(echo "$optname" | sed 's/-/_/g')
3258             if is_in $optname $CMDLINE_SET; then
3259                 eval $optname='$optval'
3260             elif is_in $optname $CMDLINE_APPEND; then
3261                 append $optname "$optval"
3262             else
3263                 die_unknown $opt
3264             fi
3265         ;;
3266     esac
3267 done
3268
3269 for e in $env; do
3270     eval "export $e"
3271 done
3272
3273 disabled logging && logfile=/dev/null
3274
3275 # Disable all the library-specific components if the library itself
3276 # is disabled, see AVCODEC_LIST and following _LIST variables.
3277
3278 disable_components(){
3279     disabled ${1} && disable $(
3280         eval components="\$$(toupper ${1})_COMPONENTS"
3281         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3282     )
3283 }
3284
3285 map 'disable_components $v' $LIBRARY_LIST
3286
3287 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3288 set >> $logfile
3289
3290 test -n "$valgrind" && toolchain="valgrind-memcheck"
3291
3292 case "$toolchain" in
3293     clang-asan)
3294         cc_default="clang"
3295         add_cflags  -fsanitize=address
3296         add_ldflags -fsanitize=address
3297     ;;
3298     clang-tsan)
3299         cc_default="clang"
3300         add_cflags  -fsanitize=thread -pie
3301         add_ldflags -fsanitize=thread -pie
3302     ;;
3303     clang-usan)
3304         cc_default="clang"
3305         add_cflags  -fsanitize=undefined
3306         add_ldflags -fsanitize=undefined
3307     ;;
3308     gcc-asan)
3309         cc_default="gcc"
3310         add_cflags  -fsanitize=address
3311         add_ldflags -fsanitize=address
3312     ;;
3313     gcc-tsan)
3314         cc_default="gcc"
3315         add_cflags  -fsanitize=thread -pie -fPIC
3316         add_ldflags -fsanitize=thread -pie -fPIC
3317     ;;
3318     gcc-usan)
3319         cc_default="gcc"
3320         add_cflags  -fsanitize=undefined
3321         add_ldflags -fsanitize=undefined
3322     ;;
3323     valgrind-massif)
3324         target_exec_default=${valgrind:-"valgrind"}
3325         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"
3326     ;;
3327     valgrind-memcheck)
3328         target_exec_default=${valgrind:-"valgrind"}
3329         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3330     ;;
3331     msvc)
3332         # Check whether the current MSVC version needs the C99 converter.
3333         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3334         # support enough of C99 to build ffmpeg. Default to the new
3335         # behaviour if the regexp was unable to match anything, since this
3336         # successfully parses the version number of existing supported
3337         # versions that require the converter (MSVC 2010 and 2012).
3338         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3339         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3340             cc_default="cl"
3341         else
3342             cc_default="c99wrap cl"
3343         fi
3344         ld_default="$source_path/compat/windows/mslink"
3345         nm_default="dumpbin -symbols"
3346         ar_default="lib"
3347         case "$arch" in
3348         arm*)
3349             as_default="armasm"
3350             ;;
3351         esac
3352         target_os_default="win32"
3353         # Use a relative path for TMPDIR. This makes sure all the
3354         # ffconf temp files are written with a relative path, avoiding
3355         # issues with msys/win32 path conversion for MSVC parameters
3356         # such as -Fo<file> or -out:<file>.
3357         TMPDIR=.
3358     ;;
3359     icl)
3360         cc_default="icl"
3361         ld_default="xilink"
3362         nm_default="dumpbin -symbols"
3363         ar_default="xilib"
3364         target_os_default="win32"
3365         TMPDIR=.
3366     ;;
3367     gcov)
3368         add_cflags  -fprofile-arcs -ftest-coverage
3369         add_ldflags -fprofile-arcs -ftest-coverage
3370     ;;
3371     hardened)
3372         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3373         add_cflags   -fno-strict-overflow -fstack-protector-all
3374         add_ldflags  -Wl,-z,relro -Wl,-z,now
3375     ;;
3376     ?*)
3377         die "Unknown toolchain $toolchain"
3378     ;;
3379 esac
3380
3381 test -n "$cross_prefix" && enable cross_compile
3382
3383 if enabled cross_compile; then
3384     test -n "$arch" && test -n "$target_os" ||
3385         die "Must specify target arch and OS when cross-compiling"
3386 fi
3387
3388 ar_default="${cross_prefix}${ar_default}"
3389 cc_default="${cross_prefix}${cc_default}"
3390 cxx_default="${cross_prefix}${cxx_default}"
3391 nm_default="${cross_prefix}${nm_default}"
3392 pkg_config_default="${cross_prefix}${pkg_config_default}"
3393 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3394     ranlib_default="${cross_prefix}${ranlib_default} -D"
3395 else
3396     ranlib_default="${cross_prefix}${ranlib_default}"
3397 fi
3398 strip_default="${cross_prefix}${strip_default}"
3399 windres_default="${cross_prefix}${windres_default}"
3400
3401 sysinclude_default="${sysroot}/usr/include"
3402
3403 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3404     target_exec target_os yasmexe
3405 enabled cross_compile || host_cc_default=$cc
3406 set_default host_cc
3407
3408 pkg_config_fail_message=""
3409 if ! $pkg_config --version >/dev/null 2>&1; then
3410     warn "$pkg_config not found, library detection may fail."
3411     pkg_config=false
3412 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3413     pkg_config_fail_message="
3414 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3415 fi
3416
3417 if test $doxygen != $doxygen_default && \
3418   ! $doxygen --version >/dev/null 2>&1; then
3419     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3420 fi
3421
3422 exesuf() {
3423     case $1 in
3424         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3425     esac
3426 }
3427
3428 EXESUF=$(exesuf $target_os)
3429 HOSTEXESUF=$(exesuf $host_os)
3430
3431 # set temporary file name
3432 : ${TMPDIR:=$TEMPDIR}
3433 : ${TMPDIR:=$TMP}
3434 : ${TMPDIR:=/tmp}
3435
3436 if [ -n "$tempprefix" ] ; then
3437     mktemp(){
3438         echo $tempprefix.${HOSTNAME}.${UID}
3439     }
3440 elif ! check_cmd mktemp -u XXXXXX; then
3441     # simple replacement for missing mktemp
3442     # NOT SAFE FOR GENERAL USE
3443     mktemp(){
3444         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3445     }
3446 fi
3447
3448 tmpfile(){
3449     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3450         (set -C; exec > $tmp) 2>/dev/null ||
3451         die "Unable to create temporary file in $TMPDIR."
3452     append TMPFILES $tmp
3453     eval $1=$tmp
3454 }
3455
3456 trap 'rm -f -- $TMPFILES' EXIT
3457
3458 tmpfile TMPASM .asm
3459 tmpfile TMPC   .c
3460 tmpfile TMPCPP .cpp
3461 tmpfile TMPE   $EXESUF
3462 tmpfile TMPH   .h
3463 tmpfile TMPM   .m
3464 tmpfile TMPO   .o
3465 tmpfile TMPS   .S
3466 tmpfile TMPSH  .sh
3467 tmpfile TMPV   .ver
3468
3469 unset -f mktemp
3470
3471 chmod +x $TMPE
3472
3473 # make sure we can execute files in $TMPDIR
3474 cat > $TMPSH 2>> $logfile <<EOF
3475 #! /bin/sh
3476 EOF
3477 chmod +x $TMPSH >> $logfile 2>&1
3478 if ! $TMPSH >> $logfile 2>&1; then
3479     cat <<EOF
3480 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3481 variable to another directory and make sure that it is not mounted noexec.
3482 EOF
3483     die "Sanity test failed."
3484 fi
3485
3486 armasm_flags(){
3487     for flag; do
3488         case $flag in
3489             # Filter out MSVC cl.exe options from cflags that shouldn't
3490             # be passed to gas-preprocessor
3491             -M[TD]*)                                            ;;
3492             *)                  echo $flag                      ;;
3493         esac
3494    done
3495 }
3496
3497 ccc_flags(){
3498     for flag; do
3499         case $flag in
3500             -std=c99)           echo -c99                       ;;
3501             -mcpu=*)            echo -arch ${flag#*=}           ;;
3502             -mieee)             echo -ieee                      ;;
3503             -O*|-fast)          echo $flag                      ;;
3504             -fno-math-errno)    echo -assume nomath_errno       ;;
3505             -g)                 echo -g3                        ;;
3506             -Wall)              echo -msg_enable level2         ;;
3507             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3508             -Wl,*)              echo $flag                      ;;
3509             -f*|-W*)                                            ;;
3510             *)                  echo $flag                      ;;
3511         esac
3512    done
3513 }
3514
3515 cparser_flags(){
3516     for flag; do
3517         case $flag in
3518             -Wno-switch)             echo -Wno-switch-enum ;;
3519             -Wno-format-zero-length) ;;
3520             -Wdisabled-optimization) ;;
3521             -Wno-pointer-sign)       echo -Wno-other ;;
3522             *)                       echo $flag ;;
3523         esac
3524     done
3525 }
3526
3527 msvc_common_flags(){
3528     for flag; do
3529         case $flag in
3530             # In addition to specifying certain flags under the compiler
3531             # specific filters, they must be specified here as well or else the
3532             # generic catch all at the bottom will print the original flag.
3533             -Wall)                ;;
3534             -std=c99)             ;;
3535             # Common flags
3536             -fomit-frame-pointer) ;;
3537             -g)                   echo -Z7 ;;
3538             -fno-math-errno)      ;;
3539             -fno-common)          ;;
3540             -fno-signed-zeros)    ;;
3541             -fPIC)                ;;
3542             -mthumb)              ;;
3543             -march=*)             ;;
3544             -lz)                  echo zlib.lib ;;
3545             -lavifil32)           echo vfw32.lib ;;
3546             -lavicap32)           echo vfw32.lib user32.lib ;;
3547             -l*)                  echo ${flag#-l}.lib ;;
3548             -LARGEADDRESSAWARE)   echo $flag ;;
3549             -L*)                  echo -libpath:${flag#-L} ;;
3550             *)                    echo $flag ;;
3551         esac
3552     done
3553 }
3554
3555 msvc_flags(){
3556     msvc_common_flags "$@"
3557     for flag; do
3558         case $flag in
3559             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3560                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3561                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3562                                        -wd4307 \
3563                                        -wd4273 -wd4554 -wd4701 ;;
3564         esac
3565     done
3566 }
3567
3568 icl_flags(){
3569     msvc_common_flags "$@"
3570     for flag; do
3571         case $flag in
3572             # Despite what Intel's documentation says -Wall, which is supported
3573             # on Windows, does enable remarks so disable them here.
3574             -Wall)                echo $flag -Qdiag-disable:remark ;;
3575             -std=c99)             echo -Qstd=c99 ;;
3576             -flto)                echo -ipo ;;
3577         esac
3578     done
3579 }
3580
3581 icc_flags(){
3582     for flag; do
3583         case $flag in
3584             -flto)                echo -ipo ;;
3585             *)                    echo $flag ;;
3586         esac
3587     done
3588 }
3589
3590 pgi_flags(){
3591     for flag; do
3592         case $flag in
3593             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3594             -fomit-frame-pointer) echo -Mnoframe ;;
3595             -g)                   echo -gopt ;;
3596             *)                    echo $flag ;;
3597         esac
3598     done
3599 }
3600
3601 suncc_flags(){
3602     for flag; do
3603         case $flag in
3604             -march=*|-mcpu=*)
3605                 case "${flag#*=}" in
3606                     native)                   echo -xtarget=native       ;;
3607                     v9|niagara)               echo -xarch=sparc          ;;
3608                     ultrasparc)               echo -xarch=sparcvis       ;;
3609                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3610                     i586|pentium)             echo -xchip=pentium        ;;
3611                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3612                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3613                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3614                     pentium4*)          echo -xtarget=pentium4           ;;
3615                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3616                     *-sse3)             echo -xarch=sse3                 ;;
3617                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3618                     bonnell)                   echo -xarch=ssse3         ;;
3619                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3620                     westmere)                  echo -xtarget=westmere    ;;
3621                     silvermont)                echo -xarch=sse4_2        ;;
3622                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3623                     core-avx*|ivybridge|haswell|broadwell)
3624                                                echo -xarch=avx           ;;
3625                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3626                     btver1)                    echo -xarch=amdsse4a      ;;
3627                     btver2|bdver*)             echo -xarch=avx           ;;
3628                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3629                     k8|opteron|athlon64|athlon-fx)
3630                                                echo -xarch=sse2a         ;;
3631                     athlon*)                   echo -xarch=pentium_proa  ;;
3632                 esac
3633                 ;;
3634             -std=c99)             echo -xc99              ;;
3635             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3636             -fPIC)                echo -KPIC -xcode=pic32 ;;
3637             -W*,*)                echo $flag              ;;
3638             -f*-*|-W*|-mimpure-text)                      ;;
3639             -shared)              echo -G                 ;;
3640             *)                    echo $flag              ;;
3641         esac
3642     done
3643 }
3644
3645 tms470_flags(){
3646     for flag; do
3647         case $flag in
3648             -march=*|-mcpu=*)
3649                 case "${flag#*=}" in
3650                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3651                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3652                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3653                     armv6*|arm11*)          echo -mv=6   ;;
3654                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3655                                             echo -mv=5e  ;;
3656                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3657                 esac
3658                 ;;
3659             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3660             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3661             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3662             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3663             -msoft-float)   echo --float_support=vfplib       ;;
3664             -O[0-3]|-mf=*)  echo $flag                        ;;
3665             -g)             echo -g -mn                       ;;
3666             -pds=*)         echo $flag                        ;;
3667             -D*|-I*)        echo $flag                        ;;
3668             --gcc|--abi=*)  echo $flag                        ;;
3669             -me)            echo $flag                        ;;
3670         esac
3671     done
3672 }
3673
3674 probe_cc(){
3675     pfx=$1
3676     _cc=$2
3677     first=$3
3678
3679     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3680     unset _ld_o _ldflags _ld_lib _ld_path
3681     unset _depflags _DEPCMD _DEPFLAGS
3682     _flags_filter=echo
3683
3684     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3685         true # no-op to avoid reading stdin in following checks
3686     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3687         _type=llvm_gcc
3688         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3689         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3690         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3691         _cflags_speed='-O3'
3692         _cflags_size='-Os'
3693     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3694         _type=gcc
3695         gcc_version=$($_cc --version | head -n1)
3696         gcc_basever=$($_cc -dumpversion)
3697         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3698         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3699         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3700         case $gcc_basever in
3701             2) ;;
3702             2.*) ;;
3703             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3704         esac
3705         if [ "$first" = true ]; then
3706             case $gcc_basever in
3707                 4.2*)
3708                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3709             esac
3710         fi
3711         _cflags_speed='-O3'
3712         _cflags_size='-Os'
3713     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3714         _type=icc
3715         _ident=$($_cc --version | head -n1)
3716         _depflags='-MMD'
3717         _cflags_speed='-O3'
3718         _cflags_size='-Os'
3719         _cflags_noopt='-O1'
3720         _flags_filter=icc_flags
3721     elif $_cc -v 2>&1 | grep -q xlc; then
3722         _type=xlc
3723         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3724         _cflags_speed='-O5'
3725         _cflags_size='-O5 -qcompact'
3726     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3727         _type=ccc
3728         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3729         _DEPFLAGS='-M'
3730         _cflags_speed='-fast'
3731         _cflags_size='-O1'
3732         _flags_filter=ccc_flags
3733     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3734         test -d "$sysroot" || die "No valid sysroot specified."
3735         _type=armcc
3736         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3737         armcc_conf="$PWD/armcc.conf"
3738         $_cc --arm_linux_configure                 \
3739              --arm_linux_config_file="$armcc_conf" \
3740              --configure_sysroot="$sysroot"        \
3741              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3742              die "Error creating armcc configuration file."
3743         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3744         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3745         as_default="${cross_prefix}gcc"
3746         _depflags='-MMD'
3747         _cflags_speed='-O3'
3748         _cflags_size='-Os'
3749     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3750         _type=tms470
3751         _ident=$($_cc -version | head -n1 | tr -s ' ')
3752         _flags='--gcc --abi=eabi -me'
3753         _cc_e='-ppl -fe=$@'
3754         _cc_o='-fe=$@'
3755         _depflags='-ppa -ppd=$(@:.o=.d)'
3756         _cflags_speed='-O3 -mf=5'
3757         _cflags_size='-O3 -mf=2'
3758         _flags_filter=tms470_flags
3759     elif $_cc -v 2>&1 | grep -q clang; then
3760         _type=clang
3761         _ident=$($_cc --version 2>/dev/null | head -n1)
3762         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3763         _cflags_speed='-O3'
3764         _cflags_size='-Os'
3765     elif $_cc -V 2>&1 | grep -q Sun; then
3766         _type=suncc
3767         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3768         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3769         _DEPFLAGS='-xM1 -xc99'
3770         _ldflags='-std=c99'
3771         _cflags_speed='-O5'
3772         _cflags_size='-O5 -xspace'
3773         _flags_filter=suncc_flags
3774     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3775         _type=pathscale
3776         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3777         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3778         _cflags_speed='-O2'
3779         _cflags_size='-Os'
3780         _flags_filter='filter_out -Wdisabled-optimization'
3781     elif $_cc -v 2>&1 | grep -q Open64; then
3782         _type=open64
3783         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3784         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3785         _cflags_speed='-O2'
3786         _cflags_size='-Os'
3787         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3788     elif $_cc -V 2>&1 | grep -q Portland; then
3789         _type=pgi
3790         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3791         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3792         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3793         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3794         _cflags_noopt="-O"
3795         _flags_filter=pgi_flags
3796     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3797         _type=armasm
3798         _ident=$($_cc | head -n1)
3799         # 4509: "This form of conditional instruction is deprecated"
3800         _flags="-nologo -ignore 4509"
3801         _flags_filter=armasm_flags
3802     elif $_cc 2>&1 | grep -q Intel; then
3803         _type=icl
3804         _ident=$($_cc 2>&1 | head -n1)
3805         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3806         # Not only is O3 broken on 13.x+ but it is slower on all previous
3807         # versions (tested) as well.
3808         _cflags_speed="-O2"
3809         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3810         if $_cc 2>&1 | grep -q Linker; then
3811             _ld_o='-out:$@'
3812         else
3813             _ld_o='-Fe$@'
3814         fi
3815         _cc_o='-Fo$@'
3816         _cc_e='-P'
3817         _flags_filter=icl_flags
3818         _ld_lib='lib%.a'
3819         _ld_path='-libpath:'
3820         # -Qdiag-error to make icl error when seeing certain unknown arguments
3821         _flags='-nologo -Qdiag-error:4044,10157'
3822         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3823         # with MSVC which enables it by default.
3824         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3825         disable stripping
3826     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3827         _type=msvc
3828         _ident=$($_cc 2>&1 | head -n1)
3829         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3830         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3831         _cflags_speed="-O2"
3832         _cflags_size="-O1"
3833         if $_cc -nologo- 2>&1 | grep -q Linker; then
3834             _ld_o='-out:$@'
3835         else
3836             _ld_o='-Fe$@'
3837         fi
3838         _cc_o='-Fo$@'
3839         _cc_e='-P -Fi$@'
3840         _flags_filter=msvc_flags
3841         _ld_lib='lib%.a'
3842         _ld_path='-libpath:'
3843         _flags='-nologo'
3844         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3845         disable stripping
3846     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3847         _type=cparser
3848         _ident=$($_cc --version | head -n1)
3849         _depflags='-MMD'
3850         _cflags_speed='-O4'
3851         _cflags_size='-O2'
3852         _flags_filter=cparser_flags
3853     fi
3854
3855     eval ${pfx}_type=\$_type
3856     eval ${pfx}_ident=\$_ident
3857 }
3858
3859 set_ccvars(){
3860     eval ${1}_C=\${_cc_c-\${${1}_C}}
3861     eval ${1}_E=\${_cc_e-\${${1}_E}}
3862     eval ${1}_O=\${_cc_o-\${${1}_O}}
3863
3864     if [ -n "$_depflags" ]; then
3865         eval ${1}_DEPFLAGS=\$_depflags
3866     else
3867         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3868         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3869         eval DEP${1}FLAGS=\$_flags
3870     fi
3871 }
3872
3873 probe_cc cc "$cc" "true"
3874 cflags_filter=$_flags_filter
3875 cflags_speed=$_cflags_speed
3876 cflags_size=$_cflags_size
3877 cflags_noopt=$_cflags_noopt
3878 add_cflags $_flags $_cflags
3879 cc_ldflags=$_ldflags
3880 set_ccvars CC
3881
3882 probe_cc hostcc "$host_cc"
3883 host_cflags_filter=$_flags_filter
3884 add_host_cflags  $_flags $_cflags
3885 set_ccvars HOSTCC
3886
3887 test -n "$cc_type" && enable $cc_type ||
3888     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3889
3890 : ${as_default:=$cc}
3891 : ${objcc_default:=$cc}
3892 : ${dep_cc_default:=$cc}
3893 : ${ld_default:=$cc}
3894 : ${host_ld_default:=$host_cc}
3895 set_default ar as objcc dep_cc ld host_ld windres
3896
3897 probe_cc as "$as"
3898 asflags_filter=$_flags_filter
3899 add_asflags $_flags $_cflags
3900 set_ccvars AS
3901
3902 probe_cc objcc "$objcc"
3903 objcflags_filter=$_flags_filter
3904 add_objcflags $_flags $_cflags
3905 set_ccvars OBJC
3906
3907 probe_cc ld "$ld"
3908 ldflags_filter=$_flags_filter
3909 add_ldflags $_flags $_ldflags
3910 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3911 LD_O=${_ld_o-$LD_O}
3912 LD_LIB=${_ld_lib-$LD_LIB}
3913 LD_PATH=${_ld_path-$LD_PATH}
3914
3915 probe_cc hostld "$host_ld"
3916 host_ldflags_filter=$_flags_filter
3917 add_host_ldflags $_flags $_ldflags
3918 HOSTLD_O=${_ld_o-$HOSTLD_O}
3919
3920 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3921     probe_cc depcc "$dep_cc"
3922     CCDEP=${_DEPCMD:-$DEPCMD}
3923     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3924     DEPCCFLAGS=$_flags
3925 fi
3926
3927 if $ar 2>&1 | grep -q Microsoft; then
3928     arflags="-nologo"
3929     ar_o='-out:$@'
3930 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3931     arflags="rq"
3932     ar_o='$@'
3933 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3934     arflags='-Xany -r -c'
3935     ar_o='$@'
3936 elif $ar 2>&1 | grep -q "\[D\] "; then
3937     arflags="rcD"
3938     ar_o='$@'
3939 else
3940     arflags="rc"
3941     ar_o='$@'
3942 fi
3943
3944 add_cflags $extra_cflags
3945 add_cxxflags $extra_cxxflags
3946 add_objcflags $extra_objcflags
3947 add_asflags $extra_cflags
3948
3949 if test -n "$sysroot"; then
3950     case "$cc_type" in
3951         gcc|llvm_gcc|clang)
3952             add_cppflags --sysroot="$sysroot"
3953             add_ldflags --sysroot="$sysroot"
3954 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3955             add_cppflags -isysroot "$sysroot"
3956             add_ldflags -isysroot "$sysroot"
3957         ;;
3958         tms470)
3959             add_cppflags -I"$sysinclude"
3960             add_ldflags  --sysroot="$sysroot"
3961         ;;
3962     esac
3963 fi
3964
3965 if test "$cpu" = host; then
3966     enabled cross_compile &&
3967         die "--cpu=host makes no sense when cross-compiling."
3968
3969     case "$cc_type" in
3970         gcc|llvm_gcc)
3971             check_native(){
3972                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3973                 sed -n "/cc1.*$1=/{
3974                             s/.*$1=\\([^ ]*\\).*/\\1/
3975                             p
3976                             q
3977                         }" $TMPE
3978             }
3979             cpu=$(check_native -march || check_native -mcpu)
3980         ;;
3981         clang)
3982             check_native(){
3983                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3984                 sed -n "/cc1.*-target-cpu /{
3985                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
3986                             p
3987                             q
3988                         }" $TMPE
3989             }
3990             cpu=$(check_native -march)
3991         ;;
3992     esac
3993
3994     test "${cpu:-host}" = host &&
3995         die "--cpu=host not supported with compiler $cc"
3996 fi
3997
3998 # Deal with common $arch aliases
3999 case "$arch" in
4000     aarch64|arm64)
4001         arch="aarch64"
4002     ;;
4003     arm*|iPad*|iPhone*)
4004         arch="arm"
4005     ;;
4006     mips*|IP*)
4007         arch="mips"
4008     ;;
4009     parisc*|hppa*)
4010         arch="parisc"
4011     ;;
4012     "Power Macintosh"|ppc*|powerpc*)
4013         arch="ppc"
4014     ;;
4015     s390|s390x)
4016         arch="s390"
4017     ;;
4018     sh4|sh)
4019         arch="sh4"
4020     ;;
4021     sun4u|sparc*)
4022         arch="sparc"
4023     ;;
4024     tilegx|tile-gx)
4025         arch="tilegx"
4026     ;;
4027     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4028         arch="x86"
4029     ;;
4030 esac
4031
4032 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4033 enable $arch
4034
4035 # Add processor-specific flags
4036 if enabled aarch64; then
4037
4038     case $cpu in
4039         armv*)
4040             cpuflags="-march=$cpu"
4041         ;;
4042         *)
4043             cpuflags="-mcpu=$cpu"
4044         ;;
4045     esac
4046
4047 elif enabled alpha; then
4048
4049     cpuflags="-mcpu=$cpu"
4050
4051 elif enabled arm; then
4052
4053     check_arm_arch() {
4054         check_cpp_condition stddef.h \
4055             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4056             $cpuflags
4057     }
4058
4059     probe_arm_arch() {
4060         if   check_arm_arch 4;        then echo armv4;
4061         elif check_arm_arch 4T;       then echo armv4t;
4062         elif check_arm_arch 5;        then echo armv5;
4063         elif check_arm_arch 5E;       then echo armv5e;
4064         elif check_arm_arch 5T;       then echo armv5t;
4065         elif check_arm_arch 5TE;      then echo armv5te;
4066         elif check_arm_arch 5TEJ;     then echo armv5te;
4067         elif check_arm_arch 6;        then echo armv6;
4068         elif check_arm_arch 6J;       then echo armv6j;
4069         elif check_arm_arch 6K;       then echo armv6k;
4070         elif check_arm_arch 6Z;       then echo armv6z;
4071         elif check_arm_arch 6ZK;      then echo armv6zk;
4072         elif check_arm_arch 6T2;      then echo armv6t2;
4073         elif check_arm_arch 7;        then echo armv7;
4074         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4075         elif check_arm_arch 7S;       then echo armv7-a;
4076         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4077         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4078         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4079         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4080         fi
4081     }
4082
4083     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4084
4085     case $cpu in
4086         armv*)
4087             cpuflags="-march=$cpu"
4088             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4089         ;;
4090         *)
4091             cpuflags="-mcpu=$cpu"
4092             case $cpu in
4093                 cortex-a*)                               subarch=armv7a  ;;
4094                 cortex-r*)                               subarch=armv7r  ;;
4095                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4096                 arm11*)                                  subarch=armv6   ;;
4097                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4098                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4099                 *)                             subarch=$(probe_arm_arch) ;;
4100             esac
4101         ;;
4102     esac
4103
4104     case "$subarch" in
4105         armv5t*)    enable fast_clz                ;;
4106         armv[6-8]*)
4107             enable fast_clz
4108             disabled fast_unaligned || enable fast_unaligned
4109             ;;
4110     esac
4111
4112 elif enabled avr32; then
4113
4114     case $cpu in
4115         ap7[02]0[0-2])
4116             subarch="avr32_ap"
4117             cpuflags="-mpart=$cpu"
4118         ;;
4119         ap)
4120             subarch="avr32_ap"
4121             cpuflags="-march=$cpu"
4122         ;;
4123         uc3[ab]*)
4124             subarch="avr32_uc"
4125             cpuflags="-mcpu=$cpu"
4126         ;;
4127         uc)
4128             subarch="avr32_uc"
4129             cpuflags="-march=$cpu"
4130         ;;
4131     esac
4132
4133 elif enabled bfin; then
4134
4135     cpuflags="-mcpu=$cpu"
4136
4137 elif enabled mips; then
4138
4139     cpuflags="-march=$cpu"
4140
4141     case $cpu in
4142         24kc)
4143             disable mips32r6
4144             disable mips64r2
4145             disable mips64r6
4146             disable mipsfpu
4147             disable mipsdsp
4148             disable mipsdspr2
4149             disable msa
4150         ;;
4151         24kf*)
4152             disable mips32r6
4153             disable mips64r2
4154             disable mips64r6
4155             disable mipsdsp
4156             disable mipsdspr2
4157             disable msa
4158         ;;
4159         24kec|34kc|1004kc)
4160             disable mips32r6
4161             disable mips64r2
4162             disable mips64r6
4163             disable mipsfpu
4164             disable mipsdspr2
4165             disable msa
4166         ;;
4167         24kef*|34kf*|1004kf*)
4168             disable mips32r6
4169             disable mips64r2
4170             disable mips64r6
4171             disable mipsdspr2
4172             disable msa
4173         ;;
4174         74kc)
4175             disable mips32r6
4176             disable mips64r2
4177             disable mips64r6
4178             disable mipsfpu
4179             disable msa
4180         ;;
4181         74kf)
4182             disable mips32r6
4183             disable mips64r2
4184             disable mips64r6
4185             disable msa
4186         ;;
4187         p5600)
4188             disable mips32r6
4189             disable mips64r2
4190             disable mips64r6
4191             disable mipsdsp
4192             disable mipsdspr2
4193             check_cflags "-mtune=p5600" &&
4194             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4195             add_asflags "-mfp64"
4196         ;;
4197         i6400)
4198             disable mips32r2
4199             disable mips32r6
4200             disable mips64r2
4201             disable mipsdsp
4202             disable mipsdspr2
4203             check_cflags "-mtune=i6400 -mabi=64" &&
4204             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4205             check_ldflags "-mabi=64" &&
4206             add_asflags "-mfp64"
4207         ;;
4208         loongson*)
4209             disable mips32r2
4210             disable mips32r6
4211             disable mips64r2
4212             disable mips64r6
4213             disable mipsfpu
4214             disable mipsdsp
4215             disable mipsdspr2
4216             disable msa
4217             enable local_aligned_8 local_aligned_16 local_aligned_32
4218             enable simd_align_16
4219             enable fast_64bit
4220             enable fast_clz
4221             enable fast_cmov
4222             enable fast_unaligned
4223             disable aligned_stack
4224             case $cpu in
4225                 loongson3*)
4226                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4227                 ;;
4228                 loongson2e)
4229                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4230                 ;;
4231                 loongson2f)
4232                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4233                 ;;
4234             esac
4235         ;;
4236         generic)
4237             disable mips64r6
4238             disable msa
4239         ;;
4240         *)
4241             # Unknown CPU. Disable everything.
4242             warn "unknown CPU. Disabling all MIPS optimizations."
4243             disable mipsfpu
4244             disable mips32r2
4245             disable mips32r6
4246             disable mips64r2
4247             disable mips64r6
4248             disable mipsdsp
4249             disable mipsdspr2
4250             disable msa
4251         ;;
4252     esac
4253
4254 elif enabled ppc; then
4255
4256     disable ldbrx
4257
4258     case $(tolower $cpu) in
4259         601|ppc601|powerpc601)
4260             cpuflags="-mcpu=601"
4261             disable altivec
4262         ;;
4263         603*|ppc603*|powerpc603*)
4264             cpuflags="-mcpu=603"
4265             disable altivec
4266         ;;
4267         604*|ppc604*|powerpc604*)
4268             cpuflags="-mcpu=604"
4269             disable altivec
4270         ;;
4271         g3|75*|ppc75*|powerpc75*)
4272             cpuflags="-mcpu=750"
4273             disable altivec
4274         ;;
4275         g4|745*|ppc745*|powerpc745*)
4276             cpuflags="-mcpu=7450"
4277             disable vsx
4278         ;;
4279         74*|ppc74*|powerpc74*)
4280             cpuflags="-mcpu=7400"
4281             disable vsx
4282         ;;
4283         g5|970|ppc970|powerpc970)
4284             cpuflags="-mcpu=970"
4285             disable vsx
4286         ;;
4287         power[3-6]*)
4288             cpuflags="-mcpu=$cpu"
4289             disable vsx
4290         ;;
4291         power[7-8]*)
4292             cpuflags="-mcpu=$cpu"
4293         ;;
4294         cell)
4295             cpuflags="-mcpu=cell"
4296             enable ldbrx
4297             disable vsx
4298         ;;
4299         e500mc)
4300             cpuflags="-mcpu=e500mc"
4301             disable altivec
4302         ;;
4303         e500v2)
4304             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4305             disable altivec
4306             disable dcbzl
4307         ;;
4308         e500)
4309             cpuflags="-mcpu=8540 -mhard-float"
4310             disable altivec
4311             disable dcbzl
4312         ;;
4313     esac
4314
4315 elif enabled sparc; then
4316
4317     case $cpu in
4318         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4319             cpuflags="-mcpu=$cpu"
4320         ;;
4321         ultrasparc*|niagara[234])
4322             cpuflags="-mcpu=$cpu"
4323         ;;
4324     esac
4325
4326 elif enabled x86; then
4327
4328     case $cpu in
4329         i[345]86|pentium)
4330             cpuflags="-march=$cpu"
4331             disable i686
4332             disable mmx
4333         ;;
4334         # targets that do NOT support nopl and conditional mov (cmov)
4335         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4336             cpuflags="-march=$cpu"
4337             disable i686
4338         ;;
4339         # targets that do support nopl and conditional mov (cmov)
4340         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4341         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4342             cpuflags="-march=$cpu"
4343             enable i686
4344             enable fast_cmov
4345         ;;
4346         # targets that do support conditional mov but on which it's slow
4347         pentium4|pentium4m|prescott|nocona)
4348             cpuflags="-march=$cpu"
4349             enable i686
4350             disable fast_cmov
4351         ;;
4352     esac
4353
4354 fi
4355
4356 if [ "$cpu" != generic ]; then
4357     add_cflags  $cpuflags
4358     add_asflags $cpuflags
4359     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4360 fi
4361
4362 # compiler sanity check
4363 check_exec <<EOF
4364 int main(void){ return 0; }
4365 EOF
4366 if test "$?" != 0; then
4367     echo "$cc is unable to create an executable file."
4368     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4369         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4370         echo "Only do this if you know what cross compiling means."
4371     fi
4372     die "C compiler test failed."
4373 fi
4374
4375 add_cppflags -D_ISOC99_SOURCE
4376 add_cxxflags -D__STDC_CONSTANT_MACROS
4377 check_cflags -std=c99
4378 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4379 #include <stdlib.h>
4380 EOF
4381 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4382 #include <stdlib.h>
4383 EOF
4384
4385 add_host_cppflags -D_ISOC99_SOURCE
4386 check_host_cflags -std=c99
4387 check_host_cflags -Wall
4388 check_host_cflags -O3
4389
4390 check_64bit(){
4391     arch32=$1
4392     arch64=$2
4393     expr=$3
4394     check_code cc "" "int test[2*($expr) - 1]" &&
4395         subarch=$arch64 || subarch=$arch32
4396 }
4397
4398 case "$arch" in
4399     aarch64|alpha|ia64)
4400         spic=$shared
4401     ;;
4402     mips)
4403         check_64bit mips mips64 '_MIPS_SIM > 1'
4404         spic=$shared
4405     ;;
4406     parisc)
4407         check_64bit parisc parisc64 'sizeof(void *) > 4'
4408         spic=$shared
4409     ;;
4410     ppc)
4411         check_64bit ppc ppc64 'sizeof(void *) > 4'
4412         spic=$shared
4413     ;;
4414     s390)
4415         check_64bit s390 s390x 'sizeof(void *) > 4'
4416         spic=$shared
4417     ;;
4418     sparc)
4419         check_64bit sparc sparc64 'sizeof(void *) > 4'
4420         spic=$shared
4421     ;;
4422     x86)
4423         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4424         # Treat x32 as x64 for now. Note it also needs spic=$shared
4425         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4426             subarch=x86_64
4427         if test "$subarch" = "x86_64"; then
4428             spic=$shared
4429         fi
4430     ;;
4431     ppc)
4432         check_cc <<EOF && subarch="ppc64"
4433         int test[(int)sizeof(char*) - 7];
4434 EOF
4435     ;;
4436 esac
4437
4438 enable $subarch
4439 enabled spic && enable_weak pic
4440
4441 # OS specific
4442 case $target_os in
4443     aix)
4444         SHFLAGS=-shared
4445         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4446         enabled shared && add_ldflags -Wl,-brtl
4447         ;;
4448     android)
4449         disable symver
4450         enable section_data_rel_ro
4451         SLIB_INSTALL_NAME='$(SLIBNAME)'
4452         SLIB_INSTALL_LINKS=
4453         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4454         ;;
4455     haiku)
4456         prefix_default="/boot/common"
4457         network_extralibs="-lnetwork"
4458         host_libs=
4459         ;;
4460     sunos)
4461         SHFLAGS='-shared -Wl,-h,$$(@F)'
4462         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4463         network_extralibs="-lsocket -lnsl"
4464         add_cppflags -D__EXTENSIONS__
4465         # When using suncc to build, the Solaris linker will mark
4466         # an executable with each instruction set encountered by
4467         # the Solaris assembler.  As our libraries contain their own
4468         # guards for processor-specific code, instead suppress
4469         # generation of the HWCAPS ELF section on Solaris x86 only.
4470         enabled_all suncc x86 &&
4471             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4472             add_ldflags -Wl,-M,mapfile
4473         nm_default='nm -P -g'
4474         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4475         ;;
4476     netbsd)
4477         disable symver
4478         oss_indev_extralibs="-lossaudio"
4479         oss_outdev_extralibs="-lossaudio"
4480         enabled gcc || check_ldflags -Wl,-zmuldefs
4481         ;;
4482     openbsd|bitrig)
4483         disable symver
4484         SHFLAGS='-shared'
4485         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4486         SLIB_INSTALL_LINKS=
4487         oss_indev_extralibs="-lossaudio"
4488         oss_outdev_extralibs="-lossaudio"
4489         ;;
4490     dragonfly)
4491         disable symver
4492         ;;
4493     freebsd)
4494         ;;
4495     bsd/os)
4496         add_extralibs -lpoll -lgnugetopt
4497         strip="strip -d"
4498         ;;
4499     darwin)
4500         enabled ppc && add_asflags -force_cpusubtype_ALL
4501         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4502         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4503         strip="${strip} -x"
4504         add_ldflags -Wl,-dynamic,-search_paths_first
4505         SLIBSUF=".dylib"
4506         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4507         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4508         objformat="macho"
4509         enabled x86_64 && objformat="macho64"
4510         enabled_any pic shared x86_64 ||
4511             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4512         ;;
4513     msys*)
4514         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4515         ;;
4516     mingw32*|mingw64*)
4517         if test $target_os = "mingw32ce"; then
4518             disable network
4519         else
4520             target_os=mingw32
4521         fi
4522         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4523         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4524         LIBTARGET=i386
4525         if enabled x86_64; then
4526             LIBTARGET="i386:x86-64"
4527         elif enabled arm; then
4528             LIBTARGET=arm-wince
4529         fi
4530         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4531         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4532         shlibdir_default="$bindir_default"
4533         SLIBPREF=""
4534         SLIBSUF=".dll"
4535         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4536         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4537         dlltool="${cross_prefix}dlltool"
4538         if check_cmd lib.exe -list; then
4539             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4540             if enabled x86_64; then
4541                 LIBTARGET=x64
4542             fi
4543         elif check_cmd $dlltool --version; then
4544             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4545         fi
4546         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4547         SLIB_INSTALL_LINKS=
4548         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4549         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4550         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4551         objformat="win32"
4552         ranlib=:
4553         enable dos_paths
4554         check_ldflags -Wl,--nxcompat,--dynamicbase
4555         # Lets work around some stupidity in binutils.
4556         # ld will strip relocations from executables even though we need them
4557         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4558         # however ld then forgets what the entry point should be (oops) so we
4559         # have to manually (re)set it.
4560         if enabled x86_32; then
4561             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4562         elif enabled x86_64; then
4563             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4564             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4565             # Set image base >4GB for extra entropy with HEASLR
4566             add_ldexeflags -Wl,--image-base,0x140000000
4567             append SHFLAGS -Wl,--image-base,0x180000000
4568         fi
4569         ;;
4570     win32|win64)
4571         disable symver
4572         if enabled shared; then
4573             # Link to the import library instead of the normal static library
4574             # for shared libs.
4575             LD_LIB='%.lib'
4576             # Cannot build both shared and static libs with MSVC or icl.
4577             disable static
4578         fi
4579         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4580         shlibdir_default="$bindir_default"
4581         SLIBPREF=""
4582         SLIBSUF=".dll"
4583         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4584         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4585         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4586         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4587         SLIB_INSTALL_LINKS=
4588         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4589         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4590         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4591         objformat="win32"
4592         ranlib=:
4593         enable dos_paths
4594         ;;
4595     cygwin*)
4596         target_os=cygwin
4597         shlibdir_default="$bindir_default"
4598         SLIBPREF="cyg"
4599         SLIBSUF=".dll"
4600         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4601         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4602         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4603         SLIB_INSTALL_LINKS=
4604         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4605         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4606         objformat="win32"
4607         enable dos_paths
4608         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4609         ;;
4610     *-dos|freedos|opendos)
4611         network_extralibs="-lsocket"
4612         objformat="coff"
4613         enable dos_paths
4614         add_cppflags -U__STRICT_ANSI__
4615         ;;
4616     linux)
4617         enable dv1394
4618         enable section_data_rel_ro
4619         ;;
4620     irix*)
4621         target_os=irix
4622         ranlib="echo ignoring ranlib"
4623         ;;
4624     os/2*)
4625         strip="lxlite -CS"
4626         ln_s="cp -f"
4627         objformat="aout"
4628         add_cppflags -D_GNU_SOURCE
4629         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4630         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4631         LIBSUF="_s.a"
4632         SLIBPREF=""
4633         SLIBSUF=".dll"
4634         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4635         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4636         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4637             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4638             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4639             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4640             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4641         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4642             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4643         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4644         enable dos_paths
4645         enable_weak os2threads
4646         ;;
4647     gnu/kfreebsd)
4648         add_cppflags -D_BSD_SOURCE
4649         ;;
4650     gnu)
4651         ;;
4652     qnx)
4653         add_cppflags -D_QNX_SOURCE
4654         network_extralibs="-lsocket"
4655         ;;
4656     symbian)
4657         SLIBSUF=".dll"
4658         enable dos_paths
4659         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4660         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4661         add_ldflags -Wl,--target1-abs,--no-undefined \
4662                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4663                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4664         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4665                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4666                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4667         ;;
4668     osf1)
4669         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4670         ;;
4671     minix)
4672         ;;
4673     plan9)
4674         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4675                      -D_REENTRANT_SOURCE        \
4676                      -D_RESEARCH_SOURCE         \
4677                      -DFD_SETSIZE=96            \
4678                      -DHAVE_SOCK_OPTS
4679         add_compat strtod.o strtod=avpriv_strtod
4680         network_extralibs='-lbsd'
4681         exeobjs=compat/plan9/main.o
4682         disable ffserver
4683         cp_f='cp'
4684         ;;
4685     none)
4686         ;;
4687     *)
4688         die "Unknown OS '$target_os'."
4689         ;;
4690 esac
4691
4692 # determine libc flavour
4693
4694 probe_libc(){
4695     pfx=$1
4696     pfx_no_=${pfx%_}
4697     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4698     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4699         eval ${pfx}libc_type=uclibc
4700         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4701     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4702         eval ${pfx}libc_type=glibc
4703         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4704     # MinGW headers can be installed on Cygwin, so check for newlib first.
4705     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4706         eval ${pfx}libc_type=newlib
4707         add_${pfx}cppflags -U__STRICT_ANSI__
4708     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4709     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4710         eval ${pfx}libc_type=mingw64
4711         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4712             add_compat msvcrt/snprintf.o
4713             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4714         fi
4715         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4716         eval test \$${pfx_no_}cc_type = "gcc" &&
4717             add_${pfx}cppflags -D__printf__=__gnu_printf__
4718     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4719          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4720         eval ${pfx}libc_type=mingw32
4721         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4722             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4723             die "ERROR: MinGW32 runtime version must be >= 3.15."
4724         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4725         eval test \$${pfx_no_}cc_type = "gcc" &&
4726             add_${pfx}cppflags -D__printf__=__gnu_printf__
4727     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4728         eval ${pfx}libc_type=msvcrt
4729         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4730             if [ "$pfx" = host_ ]; then
4731                 add_host_cppflags -Dsnprintf=_snprintf
4732             else
4733                 add_compat strtod.o strtod=avpriv_strtod
4734                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4735                                              _snprintf=avpriv_snprintf  \
4736                                              vsnprintf=avpriv_vsnprintf
4737             fi
4738         fi
4739         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4740         # 0x601 by default unless something else is set by the user.
4741         # This can easily lead to us detecting functions only present
4742         # in such new versions and producing binaries requiring windows 7.0.
4743         # Therefore explicitly set the default to XP unless the user has
4744         # set something else on the command line.
4745         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4746         # family. For these cases, configure is free to use any functions
4747         # found in the SDK headers by default. (Alternatively, we could force
4748         # _WIN32_WINNT to 0x0602 in that case.)
4749         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4750             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4751 #ifdef WINAPI_FAMILY
4752 #include <winapifamily.h>
4753 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4754 #error not desktop
4755 #endif
4756 #endif
4757 EOF
4758     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4759         eval ${pfx}libc_type=klibc
4760     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4761         eval ${pfx}libc_type=bionic
4762     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4763         eval ${pfx}libc_type=solaris
4764         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4765     fi
4766     check_${pfx}cc <<EOF
4767 #include <time.h>
4768 void *v = localtime_r;
4769 EOF
4770 test "$?" != 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
4771 #include <time.h>
4772 void *v = localtime_r;
4773 EOF
4774
4775 }
4776
4777 probe_libc
4778 test -n "$libc_type" && enable libc_$libc_type
4779 probe_libc host_
4780 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4781
4782 case $libc_type in
4783     bionic)
4784         add_compat strtod.o strtod=avpriv_strtod
4785         ;;
4786 esac
4787
4788 # hacks for compiler/libc/os combinations
4789
4790 if enabled_all tms470 libc_glibc; then
4791     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4792     add_cppflags -D__USER_LABEL_PREFIX__=
4793     add_cppflags -D__builtin_memset=memset
4794     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4795     add_cflags   -pds=48    # incompatible redefinition of macro
4796 fi
4797
4798 if enabled_all ccc libc_glibc; then
4799     add_ldflags -Wl,-z,now  # calls to libots crash without this
4800 fi
4801
4802 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4803     add_cppflags '-I\$(SRC_PATH)/compat/float'
4804
4805 esc(){
4806     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4807 }
4808
4809 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4810
4811 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4812
4813 set_default libdir
4814 : ${shlibdir_default:="$libdir"}
4815 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4816
4817 set_default $PATHS_LIST
4818 set_default nm
4819
4820 # we need to build at least one lib type
4821 if ! enabled_any static shared; then
4822     cat <<EOF
4823 At least one library type must be built.
4824 Specify --enable-static to build the static libraries or --enable-shared to
4825 build the shared libraries as well. To only build the shared libraries specify
4826 --disable-static in addition to --enable-shared.
4827 EOF
4828     exit 1;
4829 fi
4830
4831 die_license_disabled() {
4832     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4833 }
4834
4835 die_license_disabled_gpl() {
4836     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4837 }
4838
4839 die_license_disabled gpl frei0r
4840 die_license_disabled gpl libcdio
4841 die_license_disabled gpl librubberband
4842 die_license_disabled gpl libsmbclient
4843 die_license_disabled gpl libutvideo
4844 die_license_disabled gpl libvidstab
4845 die_license_disabled gpl libx264
4846 die_license_disabled gpl libx265
4847 die_license_disabled gpl libxavs
4848 die_license_disabled gpl libxvid
4849 die_license_disabled gpl libzvbi
4850 die_license_disabled gpl x11grab
4851
4852 die_license_disabled nonfree libaacplus
4853 die_license_disabled nonfree libfaac
4854 die_license_disabled nonfree nvenc
4855 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4856 enabled gpl && die_license_disabled_gpl nonfree openssl
4857
4858 die_license_disabled version3 gmp
4859 die_license_disabled version3 libopencore_amrnb
4860 die_license_disabled version3 libopencore_amrwb
4861 die_license_disabled version3 libsmbclient
4862 die_license_disabled version3 libvo_aacenc
4863 die_license_disabled version3 libvo_amrwbenc
4864
4865 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4866
4867 disabled optimizations || check_cflags -fomit-frame-pointer
4868
4869 enable_weak_pic() {
4870     disabled pic && return
4871     enable pic
4872     add_cppflags -DPIC
4873     case "$target_os" in
4874     mingw*|cygwin*)
4875         ;;
4876     *)
4877         add_cflags -fPIC
4878         ;;
4879     esac
4880     add_asflags  -fPIC
4881 }
4882
4883 enabled pic && enable_weak_pic
4884
4885 check_cc <<EOF || die "Symbol mangling check failed."
4886 int ff_extern;
4887 EOF
4888 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4889 extern_prefix=${sym%%ff_extern*}
4890
4891 check_cc <<EOF && enable_weak inline_asm
4892 void foo(void) { __asm__ volatile ("" ::); }
4893 EOF
4894
4895 _restrict=
4896 for restrict_keyword in restrict __restrict__ __restrict; do
4897     check_cc <<EOF && _restrict=$restrict_keyword && break
4898 void foo(char * $restrict_keyword p);
4899 EOF
4900 done
4901
4902 check_cc <<EOF && enable pragma_deprecated
4903 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4904 EOF
4905
4906 check_cc <<EOF && enable attribute_packed
4907 struct { int x; } __attribute__((packed)) x;
4908 EOF
4909
4910 check_cc <<EOF && enable attribute_may_alias
4911 union { int x; } __attribute__((may_alias)) x;
4912 EOF
4913
4914 check_cc <<EOF || die "endian test failed"
4915 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4916 EOF
4917 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4918
4919 if ! enabled ppc64 || enabled bigendian; then
4920     disable vsx
4921 fi
4922
4923 check_gas() {
4924     log "check_gas using '$as' as AS"
4925     # :vararg is used on aarch64, arm and ppc altivec
4926     check_as <<EOF || return 1
4927 .macro m n, y:vararg=0
4928 \n: .int \y
4929 .endm
4930 m x
4931 EOF
4932     # .altmacro is only used in arm asm
4933     ! enabled arm || check_as <<EOF || return 1
4934 .altmacro
4935 EOF
4936     enable gnu_as
4937     return 0
4938 }
4939
4940 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4941     nogas=:
4942     enabled_any arm aarch64 && nogas=die
4943     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4944     as_noop=-v
4945
4946     case $as_type in
4947         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4948         gcc)  gaspp_as_type=gas ;;
4949         *)    gaspp_as_type=$as_type ;;
4950     esac
4951
4952     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4953
4954     test "${as#*gas-preprocessor.pl}" != "$as" ||
4955     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4956         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4957
4958     if ! check_gas ; then
4959         as=${gas:=$as}
4960         check_gas || \
4961             $nogas "GNU assembler not found, install/update gas-preprocessor"
4962     fi
4963
4964     check_as <<EOF && enable as_func
4965 .func test
4966 .endfunc
4967 EOF
4968 fi
4969
4970 check_inline_asm inline_asm_labels '"1:\n"'
4971
4972 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4973
4974 if enabled aarch64; then
4975     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4976     # internal assembler in clang 3.3 does not support this instruction
4977     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4978     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4979
4980     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4981
4982 elif enabled alpha; then
4983
4984     check_cflags -mieee
4985
4986 elif enabled arm; then
4987
4988     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4989
4990     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4991 float func(float a, float b){ return a+b; }
4992 EOF
4993
4994     enabled thumb && check_cflags -mthumb || check_cflags -marm
4995
4996     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4997         enable vfp_args
4998     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4999         enable vfp_args
5000     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5001         case "${cross_prefix:-$cc}" in
5002             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5003             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5004 __asm__ (".eabi_attribute 28, 1");
5005 int main(void) { return 0; }
5006 EOF
5007         esac
5008         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5009     fi
5010
5011     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5012     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5013     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5014     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5015     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5016     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5017     enabled setend  && check_insn setend  'setend be'
5018
5019     [ $target_os = linux ] || [ $target_os = android ] ||
5020         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5021             $ARCH_EXT_LIST_ARM
5022
5023     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5024
5025     check_as <<EOF && enable as_dn_directive
5026 ra .dn d0.i16
5027 .unreq ra
5028 EOF
5029
5030     # llvm's integrated assembler supports .object_arch from llvm 3.5
5031     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5032 .object_arch armv4
5033 EOF
5034
5035     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5036
5037 elif enabled mips; then
5038
5039     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5040     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5041     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5042
5043     # Enable minimum ISA based on selected options
5044     if enabled mips64 && (enabled mipsdsp || enabled mipsdspr2); then
5045         add_cflags "-mips64r2"
5046         add_asflags "-mips64r2"
5047     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
5048         add_cflags "-mips64"
5049         add_asflags "-mips64"
5050     elif enabled mipsdsp || enabled mipsdspr2; then
5051         add_cflags "-mips32r2 -mfp32"
5052         add_asflags "-mips32r2 -mfp32"
5053     fi
5054
5055     enabled mipsdsp && add_cflags "-mdsp" && add_asflags "-mdsp" &&
5056      check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"'
5057     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
5058      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
5059     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
5060      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
5061     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
5062      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
5063
5064     enabled msa && add_asflags "-mmsa"
5065
5066 elif enabled parisc; then
5067
5068     if enabled gcc; then
5069         case $($cc -dumpversion) in
5070             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5071         esac
5072     fi
5073
5074 elif enabled ppc; then
5075
5076     enable local_aligned_8 local_aligned_16 local_aligned_32
5077
5078     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5079     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5080     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5081     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5082
5083     # AltiVec flags: The FSF version of GCC differs from the Apple version
5084     if enabled altivec; then
5085         check_cflags -maltivec -mabi=altivec &&
5086         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5087         check_cflags -faltivec
5088
5089         # check if our compiler supports Motorola AltiVec C API
5090         check_cc <<EOF || disable altivec
5091 $inc_altivec_h
5092 int main(void) {
5093     vector signed int v1 = (vector signed int) { 0 };
5094     vector signed int v2 = (vector signed int) { 1 };
5095     v1 = vec_add(v1, v2);
5096     return 0;
5097 }
5098 EOF
5099
5100         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5101     fi
5102
5103     if enabled vsx; then
5104         check_cflags -mvsx &&
5105         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5106     fi
5107
5108     if enabled power8; then
5109         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5110     fi
5111
5112 elif enabled x86; then
5113
5114     check_builtin rdtsc    intrin.h   "__rdtsc()"
5115     check_builtin mm_empty mmintrin.h "_mm_empty()"
5116
5117     enable local_aligned_8 local_aligned_16 local_aligned_32
5118
5119     # check whether EBP is available on x86
5120     # As 'i' is stored on the stack, this program will crash
5121     # if the base pointer is used to access it because the
5122     # base pointer is cleared in the inline assembly code.
5123     check_exec_crash <<EOF && enable ebp_available
5124 volatile int i=0;
5125 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5126 return i;
5127 EOF
5128
5129     # check whether EBX is available on x86
5130     check_inline_asm ebx_available '""::"b"(0)' &&
5131         check_inline_asm ebx_available '"":::"%ebx"'
5132
5133     # check whether xmm clobbers are supported
5134     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5135
5136     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5137         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5138
5139     # check whether binutils is new enough to compile SSSE3/MMXEXT
5140     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5141     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5142
5143     if ! disabled_any asm mmx yasm; then
5144         if check_cmd $yasmexe --version; then
5145             enabled x86_64 && yasm_extra="-m amd64"
5146             yasm_debug="-g dwarf2"
5147         elif check_cmd nasm -v; then
5148             yasmexe=nasm
5149             yasm_debug="-g -F dwarf"
5150             if enabled x86_64; then
5151                 case "$objformat" in
5152                     elf)   objformat=elf64 ;;
5153                     win32) objformat=win64 ;;
5154                 esac
5155             fi
5156         fi
5157
5158         YASMFLAGS="-f $objformat $yasm_extra"
5159         enabled pic               && append YASMFLAGS "-DPIC"
5160         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5161         case "$objformat" in
5162             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5163         esac
5164
5165         check_yasm "movbe ecx, [5]" && enable yasm ||
5166             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5167         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5168         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5169         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5170         check_yasm "CPU amdnop" || disable cpunop
5171     fi
5172
5173     case "$cpu" in
5174         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5175             disable fast_clz
5176         ;;
5177     esac
5178
5179 fi
5180
5181 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5182
5183 check_ldflags -Wl,--as-needed
5184 check_ldflags -Wl,-z,noexecstack
5185
5186 if check_func dlopen; then
5187     ldl=
5188 elif check_func dlopen -ldl; then
5189     ldl=-ldl
5190 fi
5191
5192 frei0r_filter_extralibs='$ldl'
5193 frei0r_src_filter_extralibs='$ldl'
5194 ladspa_filter_extralibs='$ldl'
5195 nvenc_encoder_extralibs='$ldl'
5196
5197 if ! disabled network; then
5198     check_func getaddrinfo $network_extralibs
5199     check_func inet_aton $network_extralibs
5200
5201     check_type netdb.h "struct addrinfo"
5202     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5203     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5204     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5205     check_type poll.h "struct pollfd"
5206     check_type netinet/sctp.h "struct sctp_event_subscribe"
5207     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5208     check_type netinet/in.h "struct sockaddr_in6"
5209     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5210     check_type "sys/types.h sys/socket.h" socklen_t
5211
5212     # Prefer arpa/inet.h over winsock2
5213     if check_header arpa/inet.h ; then
5214         check_func closesocket
5215     elif check_header winsock2.h ; then
5216         check_func_headers winsock2.h closesocket -lws2 &&
5217             network_extralibs="-lws2" ||
5218         { check_func_headers winsock2.h closesocket -lws2_32 &&
5219             network_extralibs="-lws2_32"; } || disable winsock2_h network
5220         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5221
5222         check_type ws2tcpip.h socklen_t
5223         check_type ws2tcpip.h "struct addrinfo"
5224         check_type ws2tcpip.h "struct group_source_req"
5225         check_type ws2tcpip.h "struct ip_mreq_source"
5226         check_type ws2tcpip.h "struct ipv6_mreq"
5227         check_type winsock2.h "struct pollfd"
5228         check_struct winsock2.h "struct sockaddr" sa_len
5229         check_type ws2tcpip.h "struct sockaddr_in6"
5230         check_type ws2tcpip.h "struct sockaddr_storage"
5231     else
5232         disable network
5233     fi
5234 fi
5235
5236 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5237 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5238 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5239 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5240 check_builtin sarestart signal.h "SA_RESTART"
5241 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5242 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5243 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5244
5245 case "$custom_allocator" in
5246     jemalloc)
5247         # jemalloc by default does not use a prefix
5248         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5249     ;;
5250     tcmalloc)
5251         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5252         malloc_prefix=tc_
5253     ;;
5254 esac
5255
5256 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5257 check_func  ${malloc_prefix}memalign            && enable memalign
5258 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5259
5260 check_func  access
5261 check_func  arc4random
5262 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5263 check_func  fcntl
5264 check_func  fork
5265 check_func  gethrtime
5266 check_func  getopt
5267 check_func  getrusage
5268 check_func  gettimeofday
5269 check_func  isatty
5270 check_func  mach_absolute_time
5271 check_func  mkstemp
5272 check_func  mmap
5273 check_func  mprotect
5274 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5275 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5276 check_func  sched_getaffinity
5277 check_func  setrlimit
5278 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5279 check_func  strerror_r
5280 check_func  sysconf
5281 check_func  sysctl
5282 check_func  usleep
5283
5284 check_func_headers conio.h kbhit
5285 check_func_headers io.h setmode
5286 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5287 check_func_headers stdlib.h getenv
5288 check_func_headers sys/stat.h lstat
5289
5290 check_func_headers windows.h CoTaskMemFree -lole32
5291 check_func_headers windows.h GetProcessAffinityMask
5292 check_func_headers windows.h GetProcessTimes
5293 check_func_headers windows.h GetSystemTimeAsFileTime
5294 check_func_headers windows.h MapViewOfFile
5295 check_func_headers windows.h PeekNamedPipe
5296 check_func_headers windows.h SetConsoleTextAttribute
5297 check_func_headers windows.h SetConsoleCtrlHandler
5298 check_func_headers windows.h Sleep
5299 check_func_headers windows.h VirtualAlloc
5300 check_struct windows.h "CONDITION_VARIABLE" Ptr
5301 check_func_headers glob.h glob
5302 enabled xlib &&
5303     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5304
5305 check_header direct.h
5306 check_header dirent.h
5307 check_header dlfcn.h
5308 check_header d3d11.h
5309 check_header dxva.h
5310 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5311 check_header io.h
5312 check_header libcrystalhd/libcrystalhd_if.h
5313 check_header mach/mach_time.h
5314 check_header malloc.h
5315 check_header net/udplite.h
5316 check_header poll.h
5317 check_header sys/mman.h
5318 check_header sys/param.h
5319 check_header sys/resource.h
5320 check_header sys/select.h
5321 check_header sys/time.h
5322 check_header sys/un.h
5323 check_header termios.h
5324 check_header unistd.h
5325 check_header valgrind/valgrind.h
5326 check_header vdpau/vdpau.h
5327 check_header vdpau/vdpau_x11.h
5328 check_header VideoDecodeAcceleration/VDADecoder.h
5329 check_header VideoToolbox/VideoToolbox.h
5330 check_header windows.h
5331 check_header X11/extensions/XvMClib.h
5332 check_header asm/types.h
5333
5334 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5335 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5336 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5337 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5338
5339 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5340
5341 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5342 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5343 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5344 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5345 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5346
5347 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5348 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5349
5350 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5351
5352 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5353
5354 if ! disabled w32threads && ! enabled pthreads; then
5355     check_func_headers "windows.h process.h" _beginthreadex &&
5356         enable w32threads || disable w32threads
5357     if ! enabled w32threads && enabled winrt; then
5358         check_func_headers "windows.h" CreateThread &&
5359             enable w32threads || disable w32threads
5360     fi
5361 fi
5362
5363 # check for some common methods of building with pthread support
5364 # do this before the optional library checks as some of them require pthreads
5365 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5366     enable pthreads
5367     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5368         add_cflags -pthread
5369         add_extralibs -pthread
5370     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5371         add_cflags -pthreads
5372         add_extralibs -pthreads
5373     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5374         add_cflags -ldl -pthread
5375         add_extralibs -ldl -pthread
5376     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5377         add_extralibs -lpthreadGC2
5378     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5379         :
5380     elif ! check_func pthread_join && ! check_func pthread_create; then
5381         disable pthreads
5382     fi
5383     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5384 fi
5385
5386
5387 if enabled pthreads; then
5388   check_func pthread_cancel
5389 fi
5390
5391 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5392 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5393 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5394
5395 check_lib math.h sin -lm && LIBM="-lm"
5396 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5397
5398 atan2f_args=2
5399 copysign_args=2
5400 hypot_args=2
5401 ldexpf_args=2
5402 powf_args=2
5403
5404 for func in $MATH_FUNCS; do
5405     eval check_mathfunc $func \${${func}_args:-1}
5406 done
5407
5408 for func in $COMPLEX_FUNCS; do
5409     eval check_complexfunc $func \${${func}_args:-1}
5410 done
5411
5412 # these are off by default, so fail if requested and not available
5413 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5414 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5415                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5416 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5417                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5418                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5419 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5420 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5421 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5422 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5423 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5424 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5425 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5426 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5427 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5428 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5429 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5430 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5431                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5432                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5433 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5434 enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create
5435 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5436 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5437                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5438                                  warn "using libfdk without pkg-config"; } }
5439 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"
5440 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5441 enabled fontconfig        && enable libfontconfig
5442 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5443 enabled libfreetype       && require_libfreetype
5444 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5445 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5446 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5447                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5448                                done || die "ERROR: libgsm not found"; }
5449 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5450 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
5451 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5452 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5453 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5454 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5455 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5456 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5457 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5458 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5459 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5460                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5461                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5462                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5463                                die "ERROR: libopenjpeg not found"; }
5464 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5465 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5466 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5467 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5468 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5469 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5470 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5471 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5472                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5473 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5474 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5475 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5476 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5477 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5478 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5479 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5480                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5481                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5482 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5483 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5484 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5485 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5486 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5487 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5488
5489 enabled libvpx            && {
5490     enabled libvpx_vp8_decoder && {
5491         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5492             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5493                 die "ERROR: libvpx decoder version must be >=0.9.1";
5494     }
5495     enabled libvpx_vp8_encoder && {
5496         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5497             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5498                 die "ERROR: libvpx encoder version must be >=0.9.7";
5499     }
5500     enabled libvpx_vp9_decoder && {
5501         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5502             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5503                 disable libvpx_vp9_decoder;
5504     }
5505     enabled libvpx_vp9_encoder && {
5506         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5507             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5508                 disable libvpx_vp9_encoder;
5509     }
5510     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5511         die "libvpx enabled but no supported decoders found"
5512     fi
5513 }
5514
5515 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5516 enabled libwebp           && {
5517     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5518     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5519 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5520                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5521                                  warn "using libx264 without pkg-config"; } } &&
5522                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5523                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5524                              { check_cpp_condition x264.h "X264_MPEG2" &&
5525                                enable libx262; }
5526 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5527                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5528                                die "ERROR: libx265 version must be >= 57."; }
5529 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5530 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5531 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5532 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5533 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5534 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5535                                 { ! enabled cross_compile && {
5536                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5537                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5538                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5539                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5540                                die "ERROR: mmal not found"; }
5541 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5542 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5543                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5544                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5545                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5546 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5547                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5548                                die "ERROR: openal not found"; } &&
5549                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5550                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5551 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5552                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5553                                die "ERROR: opencl not found"; } &&
5554                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5555                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5556                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5557 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5558                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5559                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5560                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5561                                die "ERROR: opengl not found."
5562                              }
5563 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5564                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5565                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5566                                die "ERROR: openssl not found"; }
5567 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5568
5569 # libdc1394 check
5570 if enabled libdc1394; then
5571     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5572         enable libdc1394_2; } ||
5573     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5574         enable libdc1394_1; } ||
5575     die "ERROR: No version of libdc1394 found "
5576 fi
5577
5578 if enabled gcrypt; then
5579     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5580     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5581         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5582         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5583         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5584             die "ERROR: gcrypt not found"
5585         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5586     else
5587         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5588     fi
5589 fi
5590
5591 if ! disabled sdl; then
5592     SDL_CONFIG="${cross_prefix}sdl-config"
5593     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5594         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5595         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5596         enable sdl
5597     else
5598         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5599             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5600             sdl_libs=$("${SDL_CONFIG}" --libs)
5601             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5602             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5603             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5604             enable sdl
5605         elif enabled sdl ; then
5606             die "ERROR: SDL not found"
5607         else
5608             disable sdl
5609         fi
5610     fi
5611     if test $target_os = "mingw32"; then
5612         sdl_libs="$sdl_libs -mconsole"
5613     fi
5614 fi
5615 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5616
5617 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5618     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5619     enable securetransport; }
5620
5621 disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&
5622                        enable schannel && add_extralibs -lSecur32; }
5623
5624 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5625 enabled makeinfo \
5626     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5627     && enable makeinfo_html || disable makeinfo_html
5628 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5629 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5630 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5631 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5632
5633 check_header linux/fb.h
5634 check_header linux/videodev.h
5635 check_header linux/videodev2.h
5636 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5637
5638 check_header sys/videoio.h
5639 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5640
5641 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5642 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5643 # w32api 3.12 had it defined wrong
5644 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5645
5646 check_type "dshow.h" IBaseFilter
5647
5648 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5649 { check_header dev/bktr/ioctl_meteor.h &&
5650   check_header dev/bktr/ioctl_bt848.h; } ||
5651 { check_header machine/ioctl_meteor.h &&
5652   check_header machine/ioctl_bt848.h; } ||
5653 { check_header dev/video/meteor/ioctl_meteor.h &&
5654   check_header dev/video/bktr/ioctl_bt848.h; } ||
5655 check_header dev/ic/bt8xx.h
5656
5657 check_header sndio.h
5658 if check_struct sys/soundcard.h audio_buf_info bytes; then
5659     enable_safe sys/soundcard.h
5660 else
5661     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5662     #include <sys/soundcard.h>
5663     audio_buf_info abc;
5664 EOF
5665 fi
5666 check_header soundcard.h
5667
5668 enabled_any alsa_indev alsa_outdev &&
5669     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5670
5671 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5672     check_func jack_port_get_latency_range -ljack
5673
5674 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5675
5676 if enabled libcdio; then
5677     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5678     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5679     die "ERROR: No usable libcdio/cdparanoia found"
5680 fi
5681
5682 enabled xlib &&
5683     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5684
5685 if ! disabled libxcb; then
5686     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5687         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5688     } && disable x11grab && enable libxcb
5689
5690 if enabled libxcb; then
5691     disabled libxcb_shm || {
5692         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5693             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5694         } && check_header sys/shm.h && enable libxcb_shm; }
5695
5696     disabled libxcb_xfixes || {
5697         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5698             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5699         } && enable libxcb_xfixes; }
5700
5701     disabled libxcb_shape || {
5702         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5703             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5704         } && enable libxcb_shape; }
5705
5706     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5707     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5708 fi
5709 fi
5710
5711 if enabled x11grab; then
5712     enabled xlib || die "ERROR: Xlib not found"
5713     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5714     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5715 fi
5716
5717 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5718
5719 enabled dxva2api_h &&
5720     check_cc <<EOF && enable dxva2api_cobj
5721 #define _WIN32_WINNT 0x0600
5722 #define COBJMACROS
5723 #include <windows.h>
5724 #include <d3d9.h>
5725 #include <dxva2api.h>
5726 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5727 EOF
5728
5729 enabled vaapi &&
5730     check_lib va/va.h vaInitialize -lva ||
5731     disable vaapi
5732
5733 enabled vaapi && enabled xlib &&
5734     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5735     enable vaapi_x11
5736
5737 enabled vdpau &&
5738     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5739     disable vdpau
5740
5741 enabled vdpau && enabled xlib &&
5742     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5743     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5744     enable vdpau_x11
5745
5746 # Funny iconv installations are not unusual, so check it after all flags have been set
5747 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5748
5749 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5750
5751 # add some useful compiler flags if supported
5752 check_cflags -Wdeclaration-after-statement
5753 check_cflags -Wall
5754 check_cflags -Wdisabled-optimization
5755 check_cflags -Wpointer-arith
5756 check_cflags -Wredundant-decls
5757 check_cflags -Wwrite-strings
5758 check_cflags -Wtype-limits
5759 check_cflags -Wundef
5760 check_cflags -Wmissing-prototypes
5761 check_cflags -Wno-pointer-to-int-cast
5762 check_cflags -Wstrict-prototypes
5763 check_cflags -Wempty-body
5764 enabled extra_warnings && check_cflags -Winline
5765 enabled extra_warnings && check_cflags -Wcast-qual
5766
5767 check_disable_warning(){
5768     warning_flag=-W${1#-Wno-}
5769     test_cflags $warning_flag && add_cflags $1
5770 }
5771
5772 check_disable_warning -Wno-parentheses
5773 check_disable_warning -Wno-switch
5774 check_disable_warning -Wno-format-zero-length
5775 check_disable_warning -Wno-pointer-sign
5776
5777 # add some linker flags
5778 check_ldflags -Wl,--warn-common
5779 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5780 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5781 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5782 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5783
5784 # add some strip flags
5785 # -wN '..@*' is more selective than -x, but not available everywhere.
5786 check_stripflags -wN \'..@*\' || check_stripflags -x
5787
5788 enabled neon_clobber_test &&
5789     check_ldflags -Wl,--wrap,avcodec_open2              \
5790                   -Wl,--wrap,avcodec_decode_audio4      \
5791                   -Wl,--wrap,avcodec_decode_video2      \
5792                   -Wl,--wrap,avcodec_decode_subtitle2   \
5793                   -Wl,--wrap,avcodec_encode_audio2      \
5794                   -Wl,--wrap,avcodec_encode_video2      \
5795                   -Wl,--wrap,avcodec_encode_subtitle    \
5796                   -Wl,--wrap,swr_convert                \
5797                   -Wl,--wrap,avresample_convert ||
5798     disable neon_clobber_test
5799
5800 enabled xmm_clobber_test &&
5801     check_ldflags -Wl,--wrap,avcodec_open2              \
5802                   -Wl,--wrap,avcodec_decode_audio4      \
5803                   -Wl,--wrap,avcodec_decode_video2      \
5804                   -Wl,--wrap,avcodec_decode_subtitle2   \
5805                   -Wl,--wrap,avcodec_encode_audio2      \
5806                   -Wl,--wrap,avcodec_encode_video2      \
5807                   -Wl,--wrap,avcodec_encode_subtitle    \
5808                   -Wl,--wrap,swr_convert                \
5809                   -Wl,--wrap,avresample_convert         \
5810                   -Wl,--wrap,sws_scale ||
5811     disable xmm_clobber_test
5812
5813 echo "X { local: *; };" > $TMPV
5814 if test_ldflags -Wl,--version-script,$TMPV; then
5815     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5816 elif test_ldflags -Wl,-M,$TMPV; then
5817     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5818 fi
5819
5820 check_cc <<EOF && enable symver_asm_label
5821 void ff_foo(void) __asm__ ("av_foo@VERSION");
5822 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5823 EOF
5824     check_cc <<EOF && enable symver_gnu_asm
5825 __asm__(".symver ff_foo,av_foo@VERSION");
5826 void ff_foo(void) {}
5827 EOF
5828
5829 if [ -z "$optflags" ]; then
5830     if enabled small; then
5831         optflags=$cflags_size
5832     elif enabled optimizations; then
5833         optflags=$cflags_speed
5834     else
5835         optflags=$cflags_noopt
5836     fi
5837 fi
5838
5839 check_optflags(){
5840     check_cflags "$@"
5841     enabled lto && check_ldflags "$@"
5842 }
5843
5844
5845 if enabled lto; then
5846     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5847     check_cflags  -flto
5848     check_ldflags -flto $cpuflags
5849     disable inline_asm_direct_symbol_refs
5850 fi
5851
5852 check_optflags $optflags
5853 check_optflags -fno-math-errno
5854 check_optflags -fno-signed-zeros
5855
5856 enabled ftrapv && check_cflags -ftrapv
5857
5858 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5859 int x;
5860 EOF
5861
5862
5863 if enabled icc; then
5864     # Just warnings, no remarks
5865     check_cflags -w1
5866     # -wd: Disable following warnings
5867     # 144, 167, 556: -Wno-pointer-sign
5868     # 188: enumerated type mixed with another type
5869     # 1292: attribute "foo" ignored
5870     # 1419: external declaration in primary source file
5871     # 10006: ignoring unknown option -fno-signed-zeros
5872     # 10148: ignoring unknown option -Wno-parentheses
5873     # 10156: ignoring option '-W'; no argument required
5874     # 13200: No EMMS instruction before call to function
5875     # 13203: No EMMS instruction before return from function
5876     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5877     # 11030: Warning unknown option --as-needed
5878     # 10156: ignoring option '-export'; no argument required
5879     check_ldflags -wd10156,11030
5880     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5881     enable ebp_available
5882     # The test above does not test linking
5883     enabled lto && disable symver_asm_label
5884     if enabled x86_32; then
5885         icc_version=$($cc -dumpversion)
5886         test ${icc_version%%.*} -ge 11 &&
5887             check_cflags -falign-stack=maintain-16-byte ||
5888             disable aligned_stack
5889     fi
5890 elif enabled ccc; then
5891     # disable some annoying warnings
5892     add_cflags -msg_disable bitnotint
5893     add_cflags -msg_disable mixfuncvoid
5894     add_cflags -msg_disable nonstandcast
5895     add_cflags -msg_disable unsupieee
5896 elif enabled gcc; then
5897     check_optflags -fno-tree-vectorize
5898     check_cflags -Werror=format-security
5899     check_cflags -Werror=implicit-function-declaration
5900     check_cflags -Werror=missing-prototypes
5901     check_cflags -Werror=return-type
5902     check_cflags -Werror=vla
5903     check_cflags -Wformat
5904     check_cflags -fdiagnostics-color=auto
5905     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5906 elif enabled llvm_gcc; then
5907     check_cflags -mllvm -stack-alignment=16
5908 elif enabled clang; then
5909     check_cflags -mllvm -stack-alignment=16
5910     check_cflags -Qunused-arguments
5911     check_cflags -Werror=implicit-function-declaration
5912     check_cflags -Werror=missing-prototypes
5913     check_cflags -Werror=return-type
5914 elif enabled cparser; then
5915     add_cflags -Wno-missing-variable-declarations
5916     add_cflags -Wno-empty-statement
5917 elif enabled armcc; then
5918     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5919     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5920     # 2523: use of inline assembly is deprecated
5921     add_cflags -W${armcc_opt},--diag_suppress=2523
5922     add_cflags -W${armcc_opt},--diag_suppress=1207
5923     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5924     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5925     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5926     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5927 elif enabled tms470; then
5928     add_cflags -pds=824 -pds=837
5929     disable inline_asm
5930 elif enabled pathscale; then
5931     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5932 elif enabled_any msvc icl; then
5933     enabled x86_32 && disable aligned_stack
5934     enabled_all x86_32 debug && add_cflags -Oy-
5935     enabled debug && add_ldflags -debug
5936     enable pragma_deprecated
5937     if enabled icl; then
5938         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5939         # (correctly) on icl 13.x.
5940         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5941             add_cflags -Qansi-alias
5942         # Some inline asm is not compilable in debug
5943         if enabled debug; then
5944             disable ebp_available
5945             disable ebx_available
5946         fi
5947     fi
5948     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5949     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5950     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5951     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5952     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5953     # MSVC 2013 and newer can handle it fine.
5954     # If this declspec fails, force including stdlib.h before the restrict redefinition
5955     # happens in config.h.
5956     if [ $_restrict != restrict ]; then
5957         check_cc <<EOF || add_cflags -FIstdlib.h
5958 __declspec($_restrict) void* foo(int);
5959 EOF
5960     fi
5961     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5962 fi
5963
5964 for pfx in "" host_; do
5965     varname=${pfx%_}cc_type
5966     eval "type=\$$varname"
5967     if [ $type = "msvc" ]; then
5968         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5969 static inline int foo(int a) { return a; }
5970 EOF
5971     fi
5972 done
5973
5974 case $as_type in
5975     clang)
5976         add_asflags -Qunused-arguments
5977     ;;
5978 esac
5979
5980 case $ld_type in
5981     clang)
5982         check_ldflags -Qunused-arguments
5983     ;;
5984 esac
5985
5986 case $target_os in
5987     osf1)
5988         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5989     ;;
5990     plan9)
5991         add_cppflags -Dmain=plan9_main
5992     ;;
5993 esac
5994
5995 enable frame_thread_encoder
5996
5997 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5998
5999 check_deps $CONFIG_LIST       \
6000            $CONFIG_EXTRA      \
6001            $HAVE_LIST         \
6002            $ALL_COMPONENTS    \
6003
6004 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"
6005
6006
6007 if test $target_os = "haiku"; then
6008     disable memalign
6009     disable posix_memalign
6010 fi
6011
6012 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6013     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6014     enable dxva2_lib
6015
6016 ! enabled_any memalign posix_memalign aligned_malloc &&
6017     enabled simd_align_16 && enable memalign_hack
6018
6019 # add_dep lib dep
6020 # -> enable ${lib}_deps_${dep}
6021 # -> add $dep to ${lib}_deps only once
6022 add_dep() {
6023     lib=$1
6024     dep=$2
6025     enabled "${lib}_deps_${dep}" && return 0
6026     enable  "${lib}_deps_${dep}"
6027     prepend "${lib}_deps" $dep
6028 }
6029
6030 # merge deps lib components
6031 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6032 merge_deps() {
6033     lib=$1
6034     shift
6035     for comp in $*; do
6036         enabled $comp || continue
6037         eval "dep=\"\$${comp}_deps\""
6038         for d in $dep; do
6039             add_dep $lib $d
6040         done
6041     done
6042 }
6043
6044 merge_deps libavfilter $FILTER_LIST
6045
6046 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6047
6048 for thread in $THREADS_LIST; do
6049     if enabled $thread; then
6050         test -n "$thread_type" &&
6051             die "ERROR: Only one thread type must be selected." ||
6052             thread_type="$thread"
6053     fi
6054 done
6055
6056 enabled zlib && add_cppflags -DZLIB_CONST
6057
6058 # conditional library dependencies, in linking order
6059 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6060 enabled aresample_filter    && prepend avfilter_deps "swresample"
6061 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6062 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6063 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6064 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6065 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6066 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6067 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6068 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6069 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6070 enabled pan_filter          && prepend avfilter_deps "swresample"
6071 enabled pp_filter           && prepend avfilter_deps "postproc"
6072 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6073 enabled resample_filter && prepend avfilter_deps "avresample"
6074 enabled sab_filter          && prepend avfilter_deps "swscale"
6075 enabled scale_filter    && prepend avfilter_deps "swscale"
6076 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6077 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6078 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6079 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6080 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6081 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6082 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6083
6084 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6085
6086 enabled opus_decoder    && prepend avcodec_deps "swresample"
6087
6088 expand_deps(){
6089     lib_deps=${1}_deps
6090     eval "deps=\$$lib_deps"
6091     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6092     unique $lib_deps
6093 }
6094
6095 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6096 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6097
6098 map 'expand_deps $v' $LIBRARY_LIST
6099
6100 echo "install prefix            $prefix"
6101 echo "source path               $source_path"
6102 echo "C compiler                $cc"
6103 echo "C library                 $libc_type"
6104 if test "$host_cc" != "$cc"; then
6105     echo "host C compiler           $host_cc"
6106     echo "host C library            $host_libc_type"
6107 fi
6108 echo "ARCH                      $arch ($cpu)"
6109 if test "$build_suffix" != ""; then
6110     echo "build suffix              $build_suffix"
6111 fi
6112 if test "$progs_suffix" != ""; then
6113     echo "progs suffix              $progs_suffix"
6114 fi
6115 if test "$extra_version" != ""; then
6116     echo "version string suffix     $extra_version"
6117 fi
6118 echo "big-endian                ${bigendian-no}"
6119 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6120 if enabled x86; then
6121     echo "${yasmexe}                      ${yasm-no}"
6122     echo "MMX enabled               ${mmx-no}"
6123     echo "MMXEXT enabled            ${mmxext-no}"
6124     echo "3DNow! enabled            ${amd3dnow-no}"
6125     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6126     echo "SSE enabled               ${sse-no}"
6127     echo "SSSE3 enabled             ${ssse3-no}"
6128     echo "AESNI enabled             ${aesni-no}"
6129     echo "AVX enabled               ${avx-no}"
6130     echo "XOP enabled               ${xop-no}"
6131     echo "FMA3 enabled              ${fma3-no}"
6132     echo "FMA4 enabled              ${fma4-no}"
6133     echo "i686 features enabled     ${i686-no}"
6134     echo "CMOV is fast              ${fast_cmov-no}"
6135     echo "EBX available             ${ebx_available-no}"
6136     echo "EBP available             ${ebp_available-no}"
6137 fi
6138 if enabled aarch64; then
6139     echo "NEON enabled              ${neon-no}"
6140     echo "VFP enabled               ${vfp-no}"
6141 fi
6142 if enabled arm; then
6143     echo "ARMv5TE enabled           ${armv5te-no}"
6144     echo "ARMv6 enabled             ${armv6-no}"
6145     echo "ARMv6T2 enabled           ${armv6t2-no}"
6146     echo "VFP enabled               ${vfp-no}"
6147     echo "NEON enabled              ${neon-no}"
6148     echo "THUMB enabled             ${thumb-no}"
6149 fi
6150 if enabled mips; then
6151     echo "MIPS FPU enabled          ${mipsfpu-no}"
6152     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6153     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6154     echo "MIPS MSA enabled          ${msa-no}"
6155     echo "LOONGSON MMI enabled      ${mmi-no}"
6156 fi
6157 if enabled ppc; then
6158     echo "AltiVec enabled           ${altivec-no}"
6159     echo "VSX enabled               ${vsx-no}"
6160     echo "POWER8 enabled            ${power8-no}"
6161     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6162     echo "dcbzl available           ${dcbzl-no}"
6163 fi
6164 echo "debug symbols             ${debug-no}"
6165 echo "strip symbols             ${stripping-no}"
6166 echo "optimize for size         ${small-no}"
6167 echo "optimizations             ${optimizations-no}"
6168 echo "static                    ${static-no}"
6169 echo "shared                    ${shared-no}"
6170 echo "postprocessing support    ${postproc-no}"
6171 echo "new filter support        ${avfilter-no}"
6172 echo "network support           ${network-no}"
6173 echo "threading support         ${thread_type-no}"
6174 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6175 echo "SDL support               ${sdl-no}"
6176 echo "opencl enabled            ${opencl-no}"
6177 echo "texi2html enabled         ${texi2html-no}"
6178 echo "perl enabled              ${perl-no}"
6179 echo "pod2man enabled           ${pod2man-no}"
6180 echo "makeinfo enabled          ${makeinfo-no}"
6181 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6182 test -n "$random_seed" &&
6183     echo "random seed               ${random_seed}"
6184 echo
6185
6186 echo "Enabled programs:"
6187 print_enabled '' $PROGRAM_LIST | print_in_columns
6188 echo
6189
6190 echo "External libraries:"
6191 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6192 echo
6193
6194 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6195     echo "Enabled ${type}s:"
6196     eval list=\$$(toupper $type)_LIST
6197     print_enabled '_*' $list | print_in_columns
6198     echo
6199 done
6200
6201 license="LGPL version 2.1 or later"
6202 if enabled nonfree; then
6203     license="nonfree and unredistributable"
6204 elif enabled gplv3; then
6205     license="GPL version 3 or later"
6206 elif enabled lgplv3; then
6207     license="LGPL version 3 or later"
6208 elif enabled gpl; then
6209     license="GPL version 2 or later"
6210 fi
6211
6212 echo "License: $license"
6213
6214 echo "Creating config.mak, config.h, and doc/config.texi..."
6215
6216 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6217
6218 enabled stripping || strip="echo skipping strip"
6219
6220 config_files="$TMPH config.mak doc/config.texi"
6221
6222 cat > config.mak <<EOF
6223 # Automatically generated by configure - do not modify!
6224 ifndef FFMPEG_CONFIG_MAK
6225 FFMPEG_CONFIG_MAK=1
6226 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6227 prefix=$prefix
6228 LIBDIR=\$(DESTDIR)$libdir
6229 SHLIBDIR=\$(DESTDIR)$shlibdir
6230 INCDIR=\$(DESTDIR)$incdir
6231 BINDIR=\$(DESTDIR)$bindir
6232 DATADIR=\$(DESTDIR)$datadir
6233 DOCDIR=\$(DESTDIR)$docdir
6234 MANDIR=\$(DESTDIR)$mandir
6235 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6236 SRC_PATH=$source_path
6237 ifndef MAIN_MAKEFILE
6238 SRC_PATH:=\$(SRC_PATH:.%=..%)
6239 endif
6240 CC_IDENT=$cc_ident
6241 ARCH=$arch
6242 INTRINSICS=$intrinsics
6243 CC=$cc
6244 CXX=$cxx
6245 AS=$as
6246 OBJCC=$objcc
6247 LD=$ld
6248 DEPCC=$dep_cc
6249 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6250 DEPAS=$as
6251 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6252 YASM=$yasmexe
6253 DEPYASM=$yasmexe
6254 AR=$ar
6255 ARFLAGS=$arflags
6256 AR_O=$ar_o
6257 RANLIB=$ranlib
6258 STRIP=$strip
6259 CP=cp -p
6260 LN_S=$ln_s
6261 CPPFLAGS=$CPPFLAGS
6262 CFLAGS=$CFLAGS
6263 CXXFLAGS=$CXXFLAGS
6264 OBJCFLAGS=$OBJCFLAGS
6265 ASFLAGS=$ASFLAGS
6266 AS_C=$AS_C
6267 AS_O=$AS_O
6268 OBJCC_C=$OBJCC_C
6269 OBJCC_E=$OBJCC_E
6270 OBJCC_O=$OBJCC_O
6271 CC_C=$CC_C
6272 CC_E=$CC_E
6273 CC_O=$CC_O
6274 CXX_C=$CXX_C
6275 CXX_O=$CXX_O
6276 LD_O=$LD_O
6277 LD_LIB=$LD_LIB
6278 LD_PATH=$LD_PATH
6279 DLLTOOL=$dlltool
6280 WINDRES=$windres
6281 DEPWINDRES=$dep_cc
6282 DOXYGEN=$doxygen
6283 LDFLAGS=$LDFLAGS
6284 LDEXEFLAGS=$LDEXEFLAGS
6285 LDLIBFLAGS=$LDLIBFLAGS
6286 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6287 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6288 YASMFLAGS=$YASMFLAGS
6289 BUILDSUF=$build_suffix
6290 PROGSSUF=$progs_suffix
6291 FULLNAME=$FULLNAME
6292 LIBPREF=$LIBPREF
6293 LIBSUF=$LIBSUF
6294 LIBNAME=$LIBNAME
6295 SLIBPREF=$SLIBPREF
6296 SLIBSUF=$SLIBSUF
6297 EXESUF=$EXESUF
6298 EXTRA_VERSION=$extra_version
6299 CCDEP=$CCDEP
6300 CXXDEP=$CXXDEP
6301 CCDEP_FLAGS=$CCDEP_FLAGS
6302 ASDEP=$ASDEP
6303 ASDEP_FLAGS=$ASDEP_FLAGS
6304 CC_DEPFLAGS=$CC_DEPFLAGS
6305 AS_DEPFLAGS=$AS_DEPFLAGS
6306 HOSTCC=$host_cc
6307 HOSTLD=$host_ld
6308 HOSTCFLAGS=$host_cflags
6309 HOSTCPPFLAGS=$host_cppflags
6310 HOSTEXESUF=$HOSTEXESUF
6311 HOSTLDFLAGS=$host_ldflags
6312 HOSTLIBS=$host_libs
6313 DEPHOSTCC=$host_cc
6314 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6315 HOSTCCDEP=$HOSTCCDEP
6316 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6317 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6318 HOSTCC_C=$HOSTCC_C
6319 HOSTCC_O=$HOSTCC_O
6320 HOSTLD_O=$HOSTLD_O
6321 TARGET_EXEC=$target_exec $target_exec_args
6322 TARGET_PATH=$target_path
6323 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6324 CFLAGS-ffplay=$sdl_cflags
6325 ZLIB=$($ldflags_filter -lz)
6326 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6327 EXTRALIBS=$extralibs
6328 COMPAT_OBJS=$compat_objs
6329 EXEOBJS=$exeobjs
6330 INSTALL=$install
6331 LIBTARGET=${LIBTARGET}
6332 SLIBNAME=${SLIBNAME}
6333 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6334 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6335 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6336 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6337 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6338 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6339 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6340 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6341 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6342 NOREDZONE_FLAGS=$noredzone_flags
6343 EOF
6344
6345 get_version(){
6346     lcname=lib${1}
6347     name=$(toupper $lcname)
6348     file=$source_path/$lcname/version.h
6349     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6350     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6351     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6352     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6353     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6354     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6355 }
6356
6357 map 'get_version $v' $LIBRARY_LIST
6358
6359 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6360
6361 print_program_libs(){
6362     eval "program_libs=\$${1}_libs"
6363     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6364 }
6365
6366 map 'print_program_libs $v' $PROGRAM_LIST
6367
6368 cat > $TMPH <<EOF
6369 /* Automatically generated by configure - do not modify! */
6370 #ifndef FFMPEG_CONFIG_H
6371 #define FFMPEG_CONFIG_H
6372 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6373 #define FFMPEG_LICENSE "$(c_escape $license)"
6374 #define CONFIG_THIS_YEAR 2016
6375 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6376 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6377 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6378 #define av_restrict $_restrict
6379 #define EXTERN_PREFIX "${extern_prefix}"
6380 #define EXTERN_ASM ${extern_prefix}
6381 #define BUILDSUF "$build_suffix"
6382 #define SLIBSUF "$SLIBSUF"
6383 #define HAVE_MMX2 HAVE_MMXEXT
6384 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6385 EOF
6386
6387 test -n "$assert_level" &&
6388     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6389
6390 test -n "$malloc_prefix" &&
6391     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6392
6393 if enabled yasm; then
6394     append config_files $TMPASM
6395     printf '' >$TMPASM
6396 fi
6397
6398 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6399
6400
6401 mkdir -p doc
6402 mkdir -p tests
6403 mkdir -p tests/api
6404 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6405
6406 print_config ARCH_   "$config_files" $ARCH_LIST
6407 print_config HAVE_   "$config_files" $HAVE_LIST
6408 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6409                                      $CONFIG_EXTRA      \
6410                                      $ALL_COMPONENTS    \
6411
6412 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6413 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6414
6415 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6416 cp_if_changed $TMPH config.h
6417 touch .config
6418
6419 enabled yasm && cp_if_changed $TMPASM config.asm
6420
6421 cat > $TMPH <<EOF
6422 /* Generated by ffconf */
6423 #ifndef AVUTIL_AVCONFIG_H
6424 #define AVUTIL_AVCONFIG_H
6425 EOF
6426
6427 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6428
6429 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6430
6431 cp_if_changed $TMPH libavutil/avconfig.h
6432
6433 if test -n "$WARNINGS"; then
6434     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6435     enabled fatal_warnings && exit 1
6436 fi
6437
6438 # build pkg-config files
6439
6440 lib_version(){
6441     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6442 }
6443
6444 pkgconfig_generate(){
6445     name=$1
6446     shortname=${name#lib}${build_suffix}
6447     comment=$2
6448     version=$3
6449     libs=$4
6450     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6451     requires=${requires%, }
6452     enabled ${name#lib} || return 0
6453     mkdir -p $name
6454     cat <<EOF > $name/$name${build_suffix}.pc
6455 prefix=$prefix
6456 exec_prefix=\${prefix}
6457 libdir=$libdir
6458 includedir=$incdir
6459
6460 Name: $name
6461 Description: $comment
6462 Version: $version
6463 Requires: $(enabled shared || echo $requires)
6464 Requires.private: $(enabled shared && echo $requires)
6465 Conflicts:
6466 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6467 Libs.private: $(enabled shared && echo $libs)
6468 Cflags: -I\${includedir}
6469 EOF
6470
6471 mkdir -p doc/examples/pc-uninstalled
6472 includedir=${source_path}
6473 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6474     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6475 prefix=
6476 exec_prefix=
6477 libdir=\${pcfiledir}/../../../$name
6478 includedir=${includedir}
6479
6480 Name: $name
6481 Description: $comment
6482 Version: $version
6483 Requires: $requires
6484 Conflicts:
6485 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6486 Cflags: -I\${includedir}
6487 EOF
6488 }
6489
6490 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6491 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6492 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6493 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6494 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6495 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6496 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6497 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6498 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"