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   --install-name-dir=DIR   Darwin directory name for installed targets
  95
  96 Licensing options:
  97   --enable-gpl             allow use of GPL code, the resulting libs
  98                            and binaries will be under GPL [no]
  99   --enable-version3        upgrade (L)GPL to version 3 [no]
 100   --enable-nonfree         allow use of nonfree code, the resulting libs
 101                            and binaries will be unredistributable [no]
 102
 103 Configuration options:
 104   --disable-static         do not build static libraries [no]
 105   --enable-shared          build shared libraries [no]
 106   --enable-small           optimize for size instead of speed
 107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 108   --enable-gray            enable full grayscale support (slower color)
 109   --disable-swscale-alpha  disable alpha channel support in swscale
 110   --disable-all            disable building components, libraries and programs
 111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 112   --enable-raise-major     increase major version numbers in sonames [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119   --disable-ffserver       disable ffserver build
 120
 121 Documentation options:
 122   --disable-doc            do not build documentation
 123   --disable-htmlpages      do not build HTML documentation pages
 124   --disable-manpages       do not build man documentation pages
 125   --disable-podpages       do not build POD documentation pages
 126   --disable-txtpages       do not build text documentation pages
 127
 128 Component options:
 129   --disable-avdevice       disable libavdevice build
 130   --disable-avcodec        disable libavcodec build
 131   --disable-avformat       disable libavformat build
 132   --disable-swresample     disable libswresample build
 133   --disable-swscale        disable libswscale build
 134   --disable-postproc       disable libpostproc build
 135   --disable-avfilter       disable libavfilter build
 136   --enable-avresample      enable libavresample build [no]
 137   --disable-pthreads       disable pthreads [autodetect]
 138   --disable-w32threads     disable Win32 threads [autodetect]
 139   --disable-os2threads     disable OS/2 threads [autodetect]
 140   --disable-network        disable network support [no]
 141   --disable-dct            disable DCT code
 142   --disable-dwt            disable DWT code
 143   --disable-error-resilience disable error resilience code
 144   --disable-lsp            disable LSP code
 145   --disable-lzo            disable LZO decoder code
 146   --disable-mdct           disable MDCT code
 147   --disable-rdft           disable RDFT code
 148   --disable-fft            disable FFT code
 149   --disable-faan           disable floating point AAN (I)DCT code
 150   --disable-pixelutils     disable pixel utils in libavutil
 151
 152 Hardware accelerators:
 153   --disable-d3d11va        disable D3D11VA code [autodetect]
 154   --disable-dxva2          disable DXVA2 code [autodetect]
 155   --disable-vaapi          disable VAAPI code [autodetect]
 156   --disable-vda            disable VDA code [autodetect]
 157   --disable-vdpau          disable VDPAU 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   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]
 198   --enable-avisynth        enable reading of AviSynth script files [no]
 199   --disable-bzlib          disable bzlib [autodetect]
 200   --enable-cuda            enable dynamically linked CUDA [no]
 201   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 202   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
 203   --enable-frei0r          enable frei0r video filtering [no]
 204   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 205                            if openssl, librtmp or gmp is not used [no]
 206   --enable-gmp             enable gmp, needed for rtmp(t)e support
 207                            if openssl or librtmp is not used [no]
 208   --enable-gnutls          enable gnutls, needed for https support
 209                            if openssl is not used [no]
 210   --disable-iconv          disable iconv [autodetect]
 211   --enable-jni             enable JNI support [no]
 212   --enable-ladspa          enable LADSPA audio filtering [no]
 213   --enable-libass          enable libass subtitles rendering,
 214                            needed for subtitles and ass filter [no]
 215   --enable-libbluray       enable BluRay reading using libbluray [no]
 216   --enable-libbs2b         enable bs2b DSP library [no]
 217   --enable-libcaca         enable textual display using libcaca [no]
 218   --enable-libcelt         enable CELT decoding via libcelt [no]
 219   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 220   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 221                            and libraw1394 [no]
 222   --enable-libfaac         enable AAC encoding via libfaac [no]
 223   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 224   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 225   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 226   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 227   --enable-libgme          enable Game Music Emu via libgme [no]
 228   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 229   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 230   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 231   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 232   --enable-libmfx          enable HW acceleration through libmfx
 233   --enable-libmodplug      enable ModPlug via libmodplug [no]
 234   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 235   --enable-libnut          enable NUT (de)muxing via libnut,
 236                            native (de)muxer exists [no]
 237   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 238   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 239   --enable-libopencv       enable video filtering via libopencv [no]
 240   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 241   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 242   --enable-libopus         enable Opus de/encoding via libopus [no]
 243   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 244   --enable-librubberband   enable rubberband needed for rubberband filter [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-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 260   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 261                            native implementation exists [no]
 262   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 263   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 264   --enable-libwebp         enable WebP encoding via libwebp [no]
 265   --enable-libx264         enable H.264 encoding via x264 [no]
 266   --enable-libx265         enable HEVC encoding via x265 [no]
 267   --enable-libxavs         enable AVS encoding via xavs [no]
 268   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 269   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 270   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 271   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 272   --enable-libxvid         enable Xvid encoding via xvidcore,
 273                            native MPEG-4/Xvid encoder exists [no]
 274   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 275   --enable-libzmq          enable message passing via libzmq [no]
 276   --enable-libzvbi         enable teletext support via libzvbi [no]
 277   --disable-lzma           disable lzma [autodetect]
 278   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 279   --enable-mediacodec      enable Android MediaCodec 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   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 294   --enable-x11grab         enable X11 grabbing (legacy) [no]
 295   --disable-xlib           disable xlib [autodetect]
 296   --disable-zlib           disable zlib [autodetect]
 297
 298 Toolchain options:
 299   --arch=ARCH              select architecture [$arch]
 300   --cpu=CPU                select the minimum required CPU (affects
 301                            instruction selection, may crash on older CPUs)
 302   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 303   --progs-suffix=SUFFIX    program name suffix []
 304   --enable-cross-compile   assume a cross-compiler is used
 305   --sysroot=PATH           root of cross-build tree
 306   --sysinclude=PATH        location of cross-build system headers
 307   --target-os=OS           compiler targets OS [$target_os]
 308   --target-exec=CMD        command to run executables on target
 309   --target-path=DIR        path to view of build directory on target
 310   --target-samples=DIR     path to samples directory on target
 311   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 312   --toolchain=NAME         set tool defaults according to NAME
 313   --nm=NM                  use nm tool NM [$nm_default]
 314   --ar=AR                  use archive tool AR [$ar_default]
 315   --as=AS                  use assembler AS [$as_default]
 316   --strip=STRIP            use strip tool STRIP [$strip_default]
 317   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 318   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 319   --cc=CC                  use C compiler CC [$cc_default]
 320   --cxx=CXX                use C compiler CXX [$cxx_default]
 321   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 322   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 323   --ld=LD                  use linker LD [$ld_default]
 324   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 325   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 326   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 327   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 328   --host-cc=HOSTCC         use host C compiler HOSTCC
 329   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 330   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 331   --host-ld=HOSTLD         use host linker HOSTLD
 332   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 333   --host-libs=HLIBS        use libs HLIBS when linking for host
 334   --host-os=OS             compiler host OS [$target_os]
 335   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 336   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 337   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 338   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 339   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 340   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 341   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 342   --extra-version=STRING   version string suffix []
 343   --optflags=OPTFLAGS      override optimization-related compiler flags
 344   --build-suffix=SUFFIX    library name suffix []
 345   --enable-pic             build position-independent code
 346   --enable-thumb           compile for Thumb instruction set
 347   --enable-lto             use link-time optimization
 348   --env="ENV=override"     override the environment variables
 349
 350 Advanced options (experts only):
 351   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 352   --custom-allocator=NAME  use a supported custom allocator
 353   --disable-symver         disable symbol versioning
 354   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 355   --disable-safe-bitstream-reader
 356                            disable buffer boundary checking in bitreaders
 357                            (faster, but may crash)
 358   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 359   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 360
 361 Optimization options (experts only):
 362   --disable-asm            disable all assembly optimizations
 363   --disable-altivec        disable AltiVec optimizations
 364   --disable-vsx            disable VSX optimizations
 365   --disable-power8         disable POWER8 optimizations
 366   --disable-amd3dnow       disable 3DNow! optimizations
 367   --disable-amd3dnowext    disable 3DNow! extended optimizations
 368   --disable-mmx            disable MMX optimizations
 369   --disable-mmxext         disable MMXEXT optimizations
 370   --disable-sse            disable SSE optimizations
 371   --disable-sse2           disable SSE2 optimizations
 372   --disable-sse3           disable SSE3 optimizations
 373   --disable-ssse3          disable SSSE3 optimizations
 374   --disable-sse4           disable SSE4 optimizations
 375   --disable-sse42          disable SSE4.2 optimizations
 376   --disable-avx            disable AVX optimizations
 377   --disable-xop            disable XOP optimizations
 378   --disable-fma3           disable FMA3 optimizations
 379   --disable-fma4           disable FMA4 optimizations
 380   --disable-avx2           disable AVX2 optimizations
 381   --disable-aesni          disable AESNI optimizations
 382   --disable-armv5te        disable armv5te optimizations
 383   --disable-armv6          disable armv6 optimizations
 384   --disable-armv6t2        disable armv6t2 optimizations
 385   --disable-vfp            disable VFP optimizations
 386   --disable-neon           disable NEON optimizations
 387   --disable-inline-asm     disable use of inline assembly
 388   --disable-yasm           disable use of nasm/yasm assembly
 389   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 390   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 391   --disable-msa            disable MSA optimizations
 392   --disable-mipsfpu        disable floating point MIPS optimizations
 393   --disable-mmi            disable Loongson SIMD optimizations
 394   --disable-fast-unaligned consider unaligned accesses slow
 395
 396 Developer options (useful when working on FFmpeg itself):
 397   --disable-debug          disable debugging symbols
 398   --enable-debug=LEVEL     set the debug level [$debuglevel]
 399   --disable-optimizations  disable compiler optimizations
 400   --enable-extra-warnings  enable more compiler warnings
 401   --disable-stripping      disable stripping of executables and shared libraries
 402   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 403                            2 causes a slowdown at runtime.
 404   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 405   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 406                            leaks and errors, using the specified valgrind binary.
 407                            Cannot be combined with --target-exec
 408   --enable-ftrapv          Trap arithmetic overflows
 409   --samples=PATH           location of test samples for FATE, if not set use
 410                            \$FATE_SAMPLES at make invocation time.
 411   --enable-neon-clobber-test check NEON registers for clobbering (should be
 412                            used only for debugging purposes)
 413   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 414                            should be used only for debugging purposes)
 415   --enable-random          randomly enable/disable components
 416   --disable-random
 417   --enable-random=LIST     randomly enable/disable specific components or
 418   --disable-random=LIST    component groups. LIST is a comma-separated list
 419                            of NAME[:PROB] entries where NAME is a component
 420                            (group) and PROB the probability associated with
 421                            NAME (default 0.5).
 422   --random-seed=VALUE      seed value for --enable/disable-random
 423   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 424                            (only applies to --disable-optimizations builds)
 425
 426 NOTE: Object files are built at the place where configure is launched.
 427 EOF
 428   exit 0
 429 }
 430
 431 quotes='""'
 432 if test -t 1 && which tput >/dev/null 2>&1; then
 433     ncolors=$(tput colors)
 434     if test -n "$ncolors" && test $ncolors -ge 8; then
 435         bold_color=$(tput bold)
 436         warn_color=$(tput setaf 3)
 437         error_color=$(tput setaf 1)
 438         reset_color=$(tput sgr0)
 439     fi
 440     # 72 used instead of 80 since that's the default of pr
 441     ncols=$(tput cols)
 442 fi
 443 : ${ncols:=72}
 444
 445 log(){
 446     echo "$@" >> $logfile
 447 }
 448
 449 log_file(){
 450     log BEGIN $1
 451     pr -n -t $1 >> $logfile
 452     log END $1
 453 }
 454
 455 warn(){
 456     log "WARNING: $*"
 457     WARNINGS="${WARNINGS}WARNING: $*\n"
 458 }
 459
 460 die(){
 461     log "$@"
 462     echo "$error_color$bold_color$@$reset_color"
 463     cat <<EOF
 464
 465 If you think configure made a mistake, make sure you are using the latest
 466 version from Git.  If the latest version fails, report the problem to the
 467 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 468 EOF
 469     if disabled logging; then
 470         cat <<EOF
 471 Rerun configure with logging enabled (do not use --disable-logging), and
 472 include the log this produces with your report.
 473 EOF
 474     else
 475         cat <<EOF
 476 Include the log file "$logfile" produced by configure as this will help
 477 solve the problem.
 478 EOF
 479     fi
 480     exit 1
 481 }
 482
 483 # Avoid locale weirdness, besides we really just want to translate ASCII.
 484 toupper(){
 485     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 486 }
 487
 488 tolower(){
 489     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 490 }
 491
 492 c_escape(){
 493     echo "$*" | sed 's/["\\]/\\\0/g'
 494 }
 495
 496 sh_quote(){
 497     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 498     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 499     echo "$v"
 500 }
 501
 502 cleanws(){
 503     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 504 }
 505
 506 filter(){
 507     pat=$1
 508     shift
 509     for v; do
 510         eval "case $v in $pat) echo $v ;; esac"
 511     done
 512 }
 513
 514 filter_out(){
 515     pat=$1
 516     shift
 517     for v; do
 518         eval "case $v in $pat) ;; *) echo $v ;; esac"
 519     done
 520 }
 521
 522 map(){
 523     m=$1
 524     shift
 525     for v; do eval $m; done
 526 }
 527
 528 add_suffix(){
 529     suffix=$1
 530     shift
 531     for v; do echo ${v}${suffix}; done
 532 }
 533
 534 set_all(){
 535     value=$1
 536     shift
 537     for var in $*; do
 538         eval $var=$value
 539     done
 540 }
 541
 542 set_weak(){
 543     value=$1
 544     shift
 545     for var; do
 546         eval : \${$var:=$value}
 547     done
 548 }
 549
 550 sanitize_var_name(){
 551     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 552 }
 553
 554 set_safe(){
 555     var=$1
 556     shift
 557     eval $(sanitize_var_name "$var")='$*'
 558 }
 559
 560 get_safe(){
 561     eval echo \$$(sanitize_var_name "$1")
 562 }
 563
 564 pushvar(){
 565     for pvar in $*; do
 566         eval level=\${${pvar}_level:=0}
 567         eval ${pvar}_${level}="\$$pvar"
 568         eval ${pvar}_level=$(($level+1))
 569     done
 570 }
 571
 572 popvar(){
 573     for pvar in $*; do
 574         eval level=\${${pvar}_level:-0}
 575         test $level = 0 && continue
 576         eval level=$(($level-1))
 577         eval $pvar="\${${pvar}_${level}}"
 578         eval ${pvar}_level=$level
 579         eval unset ${pvar}_${level}
 580     done
 581 }
 582
 583 enable(){
 584     set_all yes $*
 585 }
 586
 587 disable(){
 588     set_all no $*
 589 }
 590
 591 enable_weak(){
 592     set_weak yes $*
 593 }
 594
 595 disable_weak(){
 596     set_weak no $*
 597 }
 598
 599 enable_safe(){
 600     for var; do
 601         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 602     done
 603 }
 604
 605 disable_safe(){
 606     for var; do
 607         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 608     done
 609 }
 610
 611 do_enable_deep(){
 612     for var; do
 613         enabled $var && continue
 614         eval sel="\$${var}_select"
 615         eval sgs="\$${var}_suggest"
 616         pushvar var sgs
 617         enable_deep $sel
 618         popvar sgs
 619         enable_deep_weak $sgs
 620         popvar var
 621     done
 622 }
 623
 624 enable_deep(){
 625     do_enable_deep $*
 626     enable $*
 627 }
 628
 629 enable_deep_weak(){
 630     for var; do
 631         disabled $var && continue
 632         pushvar var
 633         do_enable_deep $var
 634         popvar var
 635         enable_weak $var
 636     done
 637 }
 638
 639 enabled(){
 640     test "${1#!}" = "$1" && op='=' || op=!=
 641     eval test "x\$${1#!}" $op "xyes"
 642 }
 643
 644 disabled(){
 645     test "${1#!}" = "$1" && op='=' || op=!=
 646     eval test "x\$${1#!}" $op "xno"
 647 }
 648
 649 enabled_all(){
 650     for opt; do
 651         enabled $opt || return 1
 652     done
 653 }
 654
 655 disabled_all(){
 656     for opt; do
 657         disabled $opt || return 1
 658     done
 659 }
 660
 661 enabled_any(){
 662     for opt; do
 663         enabled $opt && return 0
 664     done
 665 }
 666
 667 disabled_any(){
 668     for opt; do
 669         disabled $opt && return 0
 670     done
 671     return 1
 672 }
 673
 674 set_default(){
 675     for opt; do
 676         eval : \${$opt:=\$${opt}_default}
 677     done
 678 }
 679
 680 is_in(){
 681     value=$1
 682     shift
 683     for var in $*; do
 684         [ $var = $value ] && return 0
 685     done
 686     return 1
 687 }
 688
 689 do_check_deps(){
 690     for cfg; do
 691         cfg="${cfg#!}"
 692         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 693         disabled ${cfg}_checking && continue
 694         enable ${cfg}_checking
 695         append allopts $cfg
 696
 697         eval dep_all="\$${cfg}_deps"
 698         eval dep_any="\$${cfg}_deps_any"
 699         eval dep_sel="\$${cfg}_select"
 700         eval dep_sgs="\$${cfg}_suggest"
 701         eval dep_ifa="\$${cfg}_if"
 702         eval dep_ifn="\$${cfg}_if_any"
 703
 704         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 705         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 706         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 707
 708         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 709         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 710         enabled_all  $dep_all || disable $cfg
 711         enabled_any  $dep_any || disable $cfg
 712         disabled_any $dep_sel && disable $cfg
 713
 714         if enabled $cfg; then
 715             enable_deep $dep_sel
 716             enable_deep_weak $dep_sgs
 717         fi
 718
 719         disable ${cfg}_checking
 720     done
 721 }
 722
 723 check_deps(){
 724     unset allopts
 725
 726     do_check_deps "$@"
 727
 728     for cfg in $allopts; do
 729         enabled $cfg || continue
 730         eval dep_extralibs="\$${cfg}_extralibs"
 731         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 732     done
 733 }
 734
 735 print_config(){
 736     pfx=$1
 737     files=$2
 738     shift 2
 739     map 'eval echo "$v \${$v:-no}"' "$@" |
 740     awk "BEGIN { split(\"$files\", files) }
 741         {
 742             c = \"$pfx\" toupper(\$1);
 743             v = \$2;
 744             sub(/yes/, 1, v);
 745             sub(/no/,  0, v);
 746             for (f in files) {
 747                 file = files[f];
 748                 if (file ~ /\\.h\$/) {
 749                     printf(\"#define %s %d\\n\", c, v) >>file;
 750                 } else if (file ~ /\\.asm\$/) {
 751                     printf(\"%%define %s %d\\n\", c, v) >>file;
 752                 } else if (file ~ /\\.mak\$/) {
 753                     n = -v ? \"\" : \"!\";
 754                     printf(\"%s%s=yes\\n\", n, c) >>file;
 755                 } else if (file ~ /\\.texi\$/) {
 756                     pre = -v ? \"\" : \"@c \";
 757                     yesno = \$2;
 758                     c2 = tolower(c);
 759                     gsub(/_/, \"-\", c2);
 760                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 761                 }
 762             }
 763         }"
 764 }
 765
 766 print_enabled(){
 767     suf=$1
 768     shift
 769     for v; do
 770         enabled $v && printf "%s\n" ${v%$suf};
 771     done
 772 }
 773
 774 append(){
 775     var=$1
 776     shift
 777     eval "$var=\"\$$var $*\""
 778 }
 779
 780 prepend(){
 781     var=$1
 782     shift
 783     eval "$var=\"$* \$$var\""
 784 }
 785
 786 unique(){
 787     var=$1
 788     uniq_list=""
 789     for tok in $(eval echo \$$var); do
 790         uniq_list="$(filter_out $tok $uniq_list) $tok"
 791     done
 792     eval "$var=\"${uniq_list}\""
 793 }
 794
 795 add_cppflags(){
 796     append CPPFLAGS "$@"
 797 }
 798
 799 add_cflags(){
 800     append CFLAGS $($cflags_filter "$@")
 801 }
 802
 803 add_cxxflags(){
 804     append CXXFLAGS $($cflags_filter "$@")
 805 }
 806
 807 add_asflags(){
 808     append ASFLAGS $($asflags_filter "$@")
 809 }
 810
 811 add_objcflags(){
 812     append OBJCFLAGS $($objcflags_filter "$@")
 813 }
 814
 815 add_ldflags(){
 816     append LDFLAGS $($ldflags_filter "$@")
 817 }
 818
 819 add_ldexeflags(){
 820     append LDEXEFLAGS $($ldflags_filter "$@")
 821 }
 822
 823 add_ldlibflags(){
 824     append LDLIBFLAGS $($ldflags_filter "$@")
 825 }
 826
 827 add_stripflags(){
 828     append ASMSTRIPFLAGS "$@"
 829 }
 830
 831 add_extralibs(){
 832     prepend extralibs $($ldflags_filter "$@")
 833 }
 834
 835 add_host_cppflags(){
 836     append host_cppflags "$@"
 837 }
 838
 839 add_host_cflags(){
 840     append host_cflags $($host_cflags_filter "$@")
 841 }
 842
 843 add_host_ldflags(){
 844     append host_ldflags $($host_ldflags_filter "$@")
 845 }
 846
 847 add_compat(){
 848     append compat_objs $1
 849     shift
 850     map 'add_cppflags -D$v' "$@"
 851 }
 852
 853 check_cmd(){
 854     log "$@"
 855     "$@" >> $logfile 2>&1
 856 }
 857
 858 check_stat(){
 859     log check_stat "$@"
 860     stat "$1" >> $logfile 2>&1
 861 }
 862
 863 cc_o(){
 864     eval printf '%s\\n' $CC_O
 865 }
 866
 867 cc_e(){
 868     eval printf '%s\\n' $CC_E
 869 }
 870
 871 check_cc(){
 872     log check_cc "$@"
 873     cat > $TMPC
 874     log_file $TMPC
 875     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 876 }
 877
 878 check_cxx(){
 879     log check_cxx "$@"
 880     cat > $TMPCPP
 881     log_file $TMPCPP
 882     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 883 }
 884
 885 check_objcc(){
 886     log check_objcc "$@"
 887     cat > $TMPM
 888     log_file $TMPM
 889     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 890 }
 891
 892 check_cpp(){
 893     log check_cpp "$@"
 894     cat > $TMPC
 895     log_file $TMPC
 896     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 897 }
 898
 899 as_o(){
 900     eval printf '%s\\n' $AS_O
 901 }
 902
 903 check_as(){
 904     log check_as "$@"
 905     cat > $TMPS
 906     log_file $TMPS
 907     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 908 }
 909
 910 check_inline_asm(){
 911     log check_inline_asm "$@"
 912     name="$1"
 913     code="$2"
 914     shift 2
 915     disable $name
 916     check_cc "$@" <<EOF && enable $name
 917 void foo(void){ __asm__ volatile($code); }
 918 EOF
 919 }
 920
 921 check_inline_asm_flags(){
 922     log check_inline_asm_flags "$@"
 923     name="$1"
 924     code="$2"
 925     flags=''
 926     shift 2
 927     while [ "$1" != "" ]; do
 928       append flags $1
 929       shift
 930     done;
 931     disable $name
 932     cat > $TMPC <<EOF
 933 void foo(void){ __asm__ volatile($code); }
 934 EOF
 935     log_file $TMPC
 936     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 937     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 938 }
 939
 940 check_insn(){
 941     log check_insn "$@"
 942     check_inline_asm ${1}_inline "\"$2\""
 943     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 944 }
 945
 946 check_yasm(){
 947     log check_yasm "$@"
 948     echo "$1" > $TMPS
 949     log_file $TMPS
 950     shift 1
 951     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 952 }
 953
 954 ld_o(){
 955     eval printf '%s\\n' $LD_O
 956 }
 957
 958 check_ld(){
 959     log check_ld "$@"
 960     type=$1
 961     shift 1
 962     flags=$(filter_out '-l*|*.so' $@)
 963     libs=$(filter '-l*|*.so' $@)
 964     check_$type $($cflags_filter $flags) || return
 965     flags=$($ldflags_filter $flags)
 966     libs=$($ldflags_filter $libs)
 967     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 968 }
 969
 970 print_include(){
 971     hdr=$1
 972     test "${hdr%.h}" = "${hdr}" &&
 973         echo "#include $hdr"    ||
 974         echo "#include <$hdr>"
 975 }
 976
 977 check_code(){
 978     log check_code "$@"
 979     check=$1
 980     headers=$2
 981     code=$3
 982     shift 3
 983     {
 984         for hdr in $headers; do
 985             print_include $hdr
 986         done
 987         echo "int main(void) { $code; return 0; }"
 988     } | check_$check "$@"
 989 }
 990
 991 check_cppflags(){
 992     log check_cppflags "$@"
 993     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 994 int x;
 995 EOF
 996 }
 997
 998 test_cflags(){
 999     log test_cflags "$@"
1000     set -- $($cflags_filter "$@")
1001     check_cc "$@" <<EOF
1002 int x;
1003 EOF
1004 }
1005
1006 check_cflags(){
1007     log check_cflags "$@"
1008     test_cflags "$@" && add_cflags "$@"
1009 }
1010
1011 check_cxxflags(){
1012     log check_cxxflags "$@"
1013     set -- $($cflags_filter "$@")
1014     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1015 int x;
1016 EOF
1017 }
1018
1019 test_objcflags(){
1020     log test_cflags "$@"
1021     set -- $($cflags_filter "$@")
1022     check_objcc "$@" <<EOF
1023 int x;
1024 EOF
1025 }
1026
1027 check_objcflags(){
1028     log check_cflags "$@"
1029     test_objcflags "$@" && add_objcflags "$@"
1030 }
1031
1032 test_ldflags(){
1033     log test_ldflags "$@"
1034     check_ld "cc" "$@" <<EOF
1035 int main(void){ return 0; }
1036 EOF
1037 }
1038
1039 check_ldflags(){
1040     log check_ldflags "$@"
1041     test_ldflags "$@" && add_ldflags "$@"
1042 }
1043
1044 test_stripflags(){
1045     log test_stripflags "$@"
1046     # call check_cc to get a fresh TMPO
1047     check_cc <<EOF
1048 int main(void) { return 0; }
1049 EOF
1050     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1051 }
1052
1053 check_stripflags(){
1054     log check_stripflags "$@"
1055     test_stripflags "$@" && add_stripflags "$@"
1056 }
1057
1058 check_header(){
1059     log check_header "$@"
1060     header=$1
1061     shift
1062     disable_safe $header
1063     check_cpp "$@" <<EOF && enable_safe $header
1064 #include <$header>
1065 int x;
1066 EOF
1067 }
1068
1069 check_header_objcc(){
1070     log check_header_objcc "$@"
1071     rm -f -- "$TMPO"
1072     header=$1
1073     shift
1074     disable_safe $header
1075     {
1076        echo "#include <$header>"
1077        echo "int main(void) { return 0; }"
1078     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1079 }
1080
1081 check_func(){
1082     log check_func "$@"
1083     func=$1
1084     shift
1085     disable $func
1086     check_ld "cc" "$@" <<EOF && enable $func
1087 extern int $func();
1088 int main(void){ $func(); }
1089 EOF
1090 }
1091
1092 check_complexfunc(){
1093     log check_complexfunc "$@"
1094     func=$1
1095     narg=$2
1096     shift 2
1097     test $narg = 2 && args="f, g" || args="f * I"
1098     disable $func
1099     check_ld "cc" "$@" <<EOF && enable $func
1100 #include <complex.h>
1101 #include <math.h>
1102 float foo(complex float f, complex float g) { return $func($args); }
1103 int main(void){ return (int) foo; }
1104 EOF
1105 }
1106
1107 check_mathfunc(){
1108     log check_mathfunc "$@"
1109     func=$1
1110     narg=$2
1111     shift 2
1112     test $narg = 2 && args="f, g" || args="f"
1113     disable $func
1114     check_ld "cc" "$@" <<EOF && enable $func
1115 #include <math.h>
1116 float foo(float f, float g) { return $func($args); }
1117 int main(void){ return (int) foo; }
1118 EOF
1119 }
1120
1121 check_func_headers(){
1122     log check_func_headers "$@"
1123     headers=$1
1124     funcs=$2
1125     shift 2
1126     {
1127         for hdr in $headers; do
1128             print_include $hdr
1129         done
1130         for func in $funcs; do
1131             echo "long check_$func(void) { return (long) $func; }"
1132         done
1133         echo "int main(void) { return 0; }"
1134     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1135 }
1136
1137 check_class_headers_cpp(){
1138     log check_class_headers_cpp "$@"
1139     headers=$1
1140     classes=$2
1141     shift 2
1142     {
1143         for hdr in $headers; do
1144             echo "#include <$hdr>"
1145         done
1146         echo "int main(void) { "
1147         i=1
1148         for class in $classes; do
1149             echo "$class obj$i;"
1150             i=$(expr $i + 1)
1151         done
1152         echo "return 0; }"
1153     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1154 }
1155
1156 check_cpp_condition(){
1157     log check_cpp_condition "$@"
1158     header=$1
1159     condition=$2
1160     shift 2
1161     check_cpp "$@" <<EOF
1162 #include <$header>
1163 #if !($condition)
1164 #error "unsatisfied condition: $condition"
1165 #endif
1166 EOF
1167 }
1168
1169 check_lib(){
1170     log check_lib "$@"
1171     header="$1"
1172     func="$2"
1173     shift 2
1174     check_header $header && check_func $func "$@" && add_extralibs "$@"
1175 }
1176
1177 check_lib2(){
1178     log check_lib2 "$@"
1179     headers="$1"
1180     funcs="$2"
1181     shift 2
1182     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1183 }
1184
1185 check_lib_cpp(){
1186     log check_lib_cpp "$@"
1187     headers="$1"
1188     classes="$2"
1189     shift 2
1190     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1191 }
1192
1193 check_pkg_config(){
1194     log check_pkg_config "$@"
1195     pkgandversion="$1"
1196     pkg="${1%% *}"
1197     headers="$2"
1198     funcs="$3"
1199     shift 3
1200     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1201     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1202     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1203     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1204         set_safe "${pkg}_cflags" $pkg_cflags   &&
1205         set_safe "${pkg}_libs"   $pkg_libs
1206 }
1207
1208 check_exec(){
1209     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1210 }
1211
1212 check_exec_crash(){
1213     code=$(cat)
1214
1215     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1216     # are safe but may not be available everywhere.  Thus we use
1217     # raise(SIGTERM) instead.  The check is run in a subshell so we
1218     # can redirect the "Terminated" message from the shell.  SIGBUS
1219     # is not defined by standard C so it is used conditionally.
1220
1221     (check_exec "$@") >> $logfile 2>&1 <<EOF
1222 #include <signal.h>
1223 static void sighandler(int sig){
1224     raise(SIGTERM);
1225 }
1226 int foo(void){
1227     $code
1228 }
1229 int (*func_ptr)(void) = foo;
1230 int main(void){
1231     signal(SIGILL, sighandler);
1232     signal(SIGFPE, sighandler);
1233     signal(SIGSEGV, sighandler);
1234 #ifdef SIGBUS
1235     signal(SIGBUS, sighandler);
1236 #endif
1237     return func_ptr();
1238 }
1239 EOF
1240 }
1241
1242 check_type(){
1243     log check_type "$@"
1244     headers=$1
1245     type=$2
1246     shift 2
1247     disable_safe "$type"
1248     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1249 }
1250
1251 check_struct(){
1252     log check_struct "$@"
1253     headers=$1
1254     struct=$2
1255     member=$3
1256     shift 3
1257     disable_safe "${struct}_${member}"
1258     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1259         enable_safe "${struct}_${member}"
1260 }
1261
1262 check_builtin(){
1263     log check_builtin "$@"
1264     name=$1
1265     headers=$2
1266     builtin=$3
1267     shift 3
1268     disable "$name"
1269     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1270 }
1271
1272 check_compile_assert(){
1273     log check_compile_assert "$@"
1274     name=$1
1275     headers=$2
1276     condition=$3
1277     shift 3
1278     disable "$name"
1279     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1280 }
1281
1282 require(){
1283     name="$1"
1284     header="$2"
1285     func="$3"
1286     shift 3
1287     check_lib $header $func "$@" || die "ERROR: $name not found"
1288 }
1289
1290 require2(){
1291     name="$1"
1292     headers="$2"
1293     func="$3"
1294     shift 3
1295     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1296 }
1297
1298 require_cpp(){
1299     name="$1"
1300     headers="$2"
1301     classes="$3"
1302     shift 3
1303     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1304 }
1305
1306 use_pkg_config(){
1307     pkg="$1"
1308     check_pkg_config "$@" || return 1
1309     add_cflags    $(get_safe "${pkg}_cflags")
1310     add_extralibs $(get_safe "${pkg}_libs")
1311 }
1312
1313 require_pkg_config(){
1314     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1315 }
1316
1317 require_libfreetype(){
1318     log require_libfreetype "$@"
1319     pkg="freetype2"
1320     check_cmd $pkg_config --exists --print-errors $pkg \
1321       || die "ERROR: $pkg not found"
1322     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1323     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1324     {
1325         echo "#include <ft2build.h>"
1326         echo "#include FT_FREETYPE_H"
1327         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1328         echo "int main(void) { return 0; }"
1329     } | check_ld "cc" $pkg_cflags $pkg_libs \
1330       && set_safe "${pkg}_cflags" $pkg_cflags \
1331       && set_safe "${pkg}_libs"   $pkg_libs \
1332       || die "ERROR: $pkg not found"
1333     add_cflags    $(get_safe "${pkg}_cflags")
1334     add_extralibs $(get_safe "${pkg}_libs")
1335 }
1336
1337 hostcc_e(){
1338     eval printf '%s\\n' $HOSTCC_E
1339 }
1340
1341 hostcc_o(){
1342     eval printf '%s\\n' $HOSTCC_O
1343 }
1344
1345 check_host_cc(){
1346     log check_host_cc "$@"
1347     cat > $TMPC
1348     log_file $TMPC
1349     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1350 }
1351
1352 check_host_cpp(){
1353     log check_host_cpp "$@"
1354     cat > $TMPC
1355     log_file $TMPC
1356     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1357 }
1358
1359 check_host_cppflags(){
1360     log check_host_cppflags "$@"
1361     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1362 int x;
1363 EOF
1364 }
1365
1366 check_host_cflags(){
1367     log check_host_cflags "$@"
1368     set -- $($host_cflags_filter "$@")
1369     check_host_cc "$@" <<EOF && append host_cflags "$@"
1370 int x;
1371 EOF
1372 }
1373
1374 check_host_cpp_condition(){
1375     log check_host_cpp_condition "$@"
1376     header=$1
1377     condition=$2
1378     shift 2
1379     check_host_cpp "$@" <<EOF
1380 #include <$header>
1381 #if !($condition)
1382 #error "unsatisfied condition: $condition"
1383 #endif
1384 EOF
1385 }
1386
1387 cp_if_changed(){
1388     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1389     mkdir -p "$(dirname $2)"
1390     $cp_f "$1" "$2"
1391 }
1392
1393 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1394 # system-dependent things.
1395
1396 AVCODEC_COMPONENTS="
1397     bsfs
1398     decoders
1399     encoders
1400     hwaccels
1401     parsers
1402 "
1403
1404 AVDEVICE_COMPONENTS="
1405     indevs
1406     outdevs
1407 "
1408 AVFILTER_COMPONENTS="
1409     filters
1410 "
1411 AVFORMAT_COMPONENTS="
1412     demuxers
1413     muxers
1414     protocols
1415 "
1416
1417 AVRESAMPLE_COMPONENTS=""
1418 AVUTIL_COMPONENTS=""
1419
1420 COMPONENT_LIST="
1421     $AVCODEC_COMPONENTS
1422     $AVDEVICE_COMPONENTS
1423     $AVFILTER_COMPONENTS
1424     $AVFORMAT_COMPONENTS
1425     $AVRESAMPLE_COMPONENTS
1426     $AVUTIL_COMPONENTS
1427 "
1428
1429 EXAMPLE_LIST="
1430     avio_reading_example
1431     avio_dir_cmd_example
1432     decoding_encoding_example
1433     demuxing_decoding_example
1434     extract_mvs_example
1435     filter_audio_example
1436     filtering_audio_example
1437     filtering_video_example
1438     metadata_example
1439     muxing_example
1440     qsvdec_example
1441     remuxing_example
1442     resampling_audio_example
1443     scaling_video_example
1444     transcode_aac_example
1445     transcoding_example
1446 "
1447
1448 EXTERNAL_LIBRARY_LIST="
1449     audiotoolbox
1450     avisynth
1451     bzlib
1452     chromaprint
1453     crystalhd
1454     cuda
1455     decklink
1456     frei0r
1457     gcrypt
1458     gmp
1459     gnutls
1460     iconv
1461     jni
1462     ladspa
1463     libass
1464     libbluray
1465     libbs2b
1466     libcaca
1467     libcdio
1468     libcelt
1469     libdc1394
1470     libfaac
1471     libfdk_aac
1472     libflite
1473     libfontconfig
1474     libfreetype
1475     libfribidi
1476     libgme
1477     libgsm
1478     libiec61883
1479     libilbc
1480     libkvazaar
1481     libmfx
1482     libmodplug
1483     libmp3lame
1484     libnut
1485     libopencore_amrnb
1486     libopencore_amrwb
1487     libopencv
1488     libopenh264
1489     libopenjpeg
1490     libopus
1491     libpulse
1492     librtmp
1493     librubberband
1494     libschroedinger
1495     libshine
1496     libsmbclient
1497     libsnappy
1498     libsoxr
1499     libspeex
1500     libssh
1501     libtesseract
1502     libtheora
1503     libtwolame
1504     libutvideo
1505     libv4l2
1506     libvidstab
1507     libvo_amrwbenc
1508     libvorbis
1509     libvpx
1510     libwavpack
1511     libwebp
1512     libx264
1513     libx265
1514     libxavs
1515     libxcb
1516     libxcb_shm
1517     libxcb_shape
1518     libxcb_xfixes
1519     libxvid
1520     libzimg
1521     libzmq
1522     libzvbi
1523     lzma
1524     mediacodec
1525     mmal
1526     netcdf
1527     nvenc
1528     openal
1529     opencl
1530     opengl
1531     openssl
1532     schannel
1533     sdl
1534     securetransport
1535     videotoolbox
1536     x11grab
1537     xlib
1538     zlib
1539 "
1540
1541 DOCUMENT_LIST="
1542     doc
1543     htmlpages
1544     manpages
1545     podpages
1546     txtpages
1547 "
1548
1549 FEATURE_LIST="
1550     ftrapv
1551     gray
1552     hardcoded_tables
1553     runtime_cpudetect
1554     safe_bitstream_reader
1555     shared
1556     small
1557     static
1558     swscale_alpha
1559 "
1560
1561 HWACCEL_LIST="
1562     d3d11va
1563     dxva2
1564     vaapi
1565     vda
1566     vdpau
1567     videotoolbox_hwaccel
1568     xvmc
1569 "
1570
1571 LIBRARY_LIST="
1572     avcodec
1573     avdevice
1574     avfilter
1575     avformat
1576     avresample
1577     avutil
1578     postproc
1579     swresample
1580     swscale
1581 "
1582
1583 LICENSE_LIST="
1584     gpl
1585     nonfree
1586     version3
1587 "
1588
1589 PROGRAM_LIST="
1590     ffplay
1591     ffprobe
1592     ffserver
1593     ffmpeg
1594 "
1595
1596 SUBSYSTEM_LIST="
1597     dct
1598     dwt
1599     error_resilience
1600     faan
1601     fast_unaligned
1602     fft
1603     lsp
1604     lzo
1605     mdct
1606     pixelutils
1607     network
1608     rdft
1609 "
1610
1611 CONFIG_LIST="
1612     $COMPONENT_LIST
1613     $DOCUMENT_LIST
1614     $EXAMPLE_LIST
1615     $EXTERNAL_LIBRARY_LIST
1616     $FEATURE_LIST
1617     $HWACCEL_LIST
1618     $LICENSE_LIST
1619     $LIBRARY_LIST
1620     $PROGRAM_LIST
1621     $SUBSYSTEM_LIST
1622     fontconfig
1623     incompatible_libav_abi
1624     memalign_hack
1625     memory_poisoning
1626     neon_clobber_test
1627     pic
1628     pod2man
1629     raise_major
1630     thumb
1631     valgrind_backtrace
1632     xmm_clobber_test
1633 "
1634
1635 THREADS_LIST="
1636     pthreads
1637     os2threads
1638     w32threads
1639 "
1640
1641 ATOMICS_LIST="
1642     atomics_gcc
1643     atomics_suncc
1644     atomics_win32
1645 "
1646
1647 ARCH_LIST="
1648     aarch64
1649     alpha
1650     arm
1651     avr32
1652     avr32_ap
1653     avr32_uc
1654     bfin
1655     ia64
1656     m68k
1657     mips
1658     mips64
1659     parisc
1660     ppc
1661     ppc64
1662     s390
1663     sh4
1664     sparc
1665     sparc64
1666     tilegx
1667     tilepro
1668     tomi
1669     x86
1670     x86_32
1671     x86_64
1672 "
1673
1674 ARCH_EXT_LIST_ARM="
1675     armv5te
1676     armv6
1677     armv6t2
1678     armv8
1679     neon
1680     vfp
1681     vfpv3
1682     setend
1683 "
1684
1685 ARCH_EXT_LIST_MIPS="
1686     mipsfpu
1687     mips32r2
1688     mips32r5
1689     mips64r2
1690     mips32r6
1691     mips64r6
1692     mipsdsp
1693     mipsdspr2
1694     msa
1695 "
1696
1697 ARCH_EXT_LIST_LOONGSON="
1698     loongson2
1699     loongson3
1700     mmi
1701 "
1702
1703 ARCH_EXT_LIST_X86_SIMD="
1704     aesni
1705     amd3dnow
1706     amd3dnowext
1707     avx
1708     avx2
1709     fma3
1710     fma4
1711     mmx
1712     mmxext
1713     sse
1714     sse2
1715     sse3
1716     sse4
1717     sse42
1718     ssse3
1719     xop
1720 "
1721
1722 ARCH_EXT_LIST_PPC="
1723     altivec
1724     dcbzl
1725     ldbrx
1726     power8
1727     ppc4xx
1728     vsx
1729 "
1730
1731 ARCH_EXT_LIST_X86="
1732     $ARCH_EXT_LIST_X86_SIMD
1733     cpunop
1734     i686
1735 "
1736
1737 ARCH_EXT_LIST="
1738     $ARCH_EXT_LIST_ARM
1739     $ARCH_EXT_LIST_PPC
1740     $ARCH_EXT_LIST_X86
1741     $ARCH_EXT_LIST_MIPS
1742     $ARCH_EXT_LIST_LOONGSON
1743 "
1744
1745 ARCH_FEATURES="
1746     aligned_stack
1747     fast_64bit
1748     fast_clz
1749     fast_cmov
1750     local_aligned_8
1751     local_aligned_16
1752     local_aligned_32
1753     simd_align_16
1754 "
1755
1756 BUILTIN_LIST="
1757     atomic_cas_ptr
1758     atomic_compare_exchange
1759     machine_rw_barrier
1760     MemoryBarrier
1761     mm_empty
1762     rdtsc
1763     sarestart
1764     sem_timedwait
1765     sync_val_compare_and_swap
1766 "
1767 HAVE_LIST_CMDLINE="
1768     inline_asm
1769     symver
1770     yasm
1771 "
1772
1773 HAVE_LIST_PUB="
1774     bigendian
1775     fast_unaligned
1776     incompatible_libav_abi
1777 "
1778
1779 HEADERS_LIST="
1780     alsa_asoundlib_h
1781     altivec_h
1782     arpa_inet_h
1783     asm_types_h
1784     cdio_paranoia_h
1785     cdio_paranoia_paranoia_h
1786     dispatch_dispatch_h
1787     dev_bktr_ioctl_bt848_h
1788     dev_bktr_ioctl_meteor_h
1789     dev_ic_bt8xx_h
1790     dev_video_bktr_ioctl_bt848_h
1791     dev_video_meteor_ioctl_meteor_h
1792     direct_h
1793     dirent_h
1794     dlfcn_h
1795     d3d11_h
1796     dxva_h
1797     ES2_gl_h
1798     gsm_h
1799     io_h
1800     mach_mach_time_h
1801     machine_ioctl_bt848_h
1802     machine_ioctl_meteor_h
1803     malloc_h
1804     opencv2_core_core_c_h
1805     openjpeg_2_1_openjpeg_h
1806     openjpeg_2_0_openjpeg_h
1807     openjpeg_1_5_openjpeg_h
1808     OpenGL_gl3_h
1809     poll_h
1810     sndio_h
1811     soundcard_h
1812     sys_mman_h
1813     sys_param_h
1814     sys_resource_h
1815     sys_select_h
1816     sys_soundcard_h
1817     sys_time_h
1818     sys_un_h
1819     sys_videoio_h
1820     termios_h
1821     udplite_h
1822     unistd_h
1823     valgrind_valgrind_h
1824     windows_h
1825     winsock2_h
1826 "
1827
1828 INTRINSICS_LIST="
1829     intrinsics_neon
1830 "
1831
1832 COMPLEX_FUNCS="
1833     cabs
1834     cexp
1835 "
1836
1837 MATH_FUNCS="
1838     atanf
1839     atan2f
1840     cbrt
1841     cbrtf
1842     copysign
1843     cosf
1844     erf
1845     exp2
1846     exp2f
1847     expf
1848     hypot
1849     isfinite
1850     isinf
1851     isnan
1852     ldexpf
1853     llrint
1854     llrintf
1855     log2
1856     log2f
1857     log10f
1858     lrint
1859     lrintf
1860     powf
1861     rint
1862     round
1863     roundf
1864     sinf
1865     trunc
1866     truncf
1867 "
1868
1869 SYSTEM_FUNCS="
1870     access
1871     aligned_malloc
1872     arc4random
1873     clock_gettime
1874     closesocket
1875     CommandLineToArgvW
1876     CoTaskMemFree
1877     CryptGenRandom
1878     dlopen
1879     fcntl
1880     flt_lim
1881     fork
1882     getaddrinfo
1883     gethrtime
1884     getopt
1885     GetProcessAffinityMask
1886     GetProcessMemoryInfo
1887     GetProcessTimes
1888     getrusage
1889     GetSystemTimeAsFileTime
1890     gettimeofday
1891     glob
1892     glXGetProcAddress
1893     gmtime_r
1894     inet_aton
1895     isatty
1896     jack_port_get_latency_range
1897     kbhit
1898     localtime_r
1899     lstat
1900     lzo1x_999_compress
1901     mach_absolute_time
1902     MapViewOfFile
1903     memalign
1904     mkstemp
1905     mmap
1906     mprotect
1907     nanosleep
1908     PeekNamedPipe
1909     posix_memalign
1910     pthread_cancel
1911     sched_getaffinity
1912     SetConsoleTextAttribute
1913     SetConsoleCtrlHandler
1914     setmode
1915     setrlimit
1916     Sleep
1917     strerror_r
1918     sysconf
1919     sysctl
1920     usleep
1921     UTGetOSTypeFromString
1922     VirtualAlloc
1923     wglGetProcAddress
1924 "
1925
1926 TOOLCHAIN_FEATURES="
1927     as_dn_directive
1928     as_func
1929     as_object_arch
1930     asm_mod_q
1931     attribute_may_alias
1932     attribute_packed
1933     ebp_available
1934     ebx_available
1935     gnu_as
1936     gnu_windres
1937     ibm_asm
1938     inline_asm_direct_symbol_refs
1939     inline_asm_labels
1940     inline_asm_nonlocal_labels
1941     pragma_deprecated
1942     rsync_contimeout
1943     symver_asm_label
1944     symver_gnu_asm
1945     vfp_args
1946     xform_asm
1947     xmm_clobbers
1948 "
1949
1950 TYPES_LIST="
1951     CONDITION_VARIABLE_Ptr
1952     socklen_t
1953     struct_addrinfo
1954     struct_group_source_req
1955     struct_ip_mreq_source
1956     struct_ipv6_mreq
1957     struct_msghdr_msg_flags
1958     struct_pollfd
1959     struct_rusage_ru_maxrss
1960     struct_sctp_event_subscribe
1961     struct_sockaddr_in6
1962     struct_sockaddr_sa_len
1963     struct_sockaddr_storage
1964     struct_stat_st_mtim_tv_nsec
1965     struct_v4l2_frmivalenum_discrete
1966 "
1967
1968 HAVE_LIST="
1969     $ARCH_EXT_LIST
1970     $(add_suffix _external $ARCH_EXT_LIST)
1971     $(add_suffix _inline   $ARCH_EXT_LIST)
1972     $ARCH_FEATURES
1973     $ATOMICS_LIST
1974     $BUILTIN_LIST
1975     $COMPLEX_FUNCS
1976     $HAVE_LIST_CMDLINE
1977     $HAVE_LIST_PUB
1978     $HEADERS_LIST
1979     $INTRINSICS_LIST
1980     $MATH_FUNCS
1981     $SYSTEM_FUNCS
1982     $THREADS_LIST
1983     $TOOLCHAIN_FEATURES
1984     $TYPES_LIST
1985     atomics_native
1986     dos_paths
1987     dxva2_lib
1988     dxva2api_cobj
1989     libc_msvcrt
1990     libdc1394_1
1991     libdc1394_2
1992     makeinfo
1993     makeinfo_html
1994     perl
1995     pod2man
1996     sdl
1997     section_data_rel_ro
1998     texi2html
1999     threads
2000     vaapi_x11
2001     vdpau_x11
2002     winrt
2003     xlib
2004 "
2005
2006 # options emitted with CONFIG_ prefix but not available on the command line
2007 CONFIG_EXTRA="
2008     aandcttables
2009     ac3dsp
2010     audio_frame_queue
2011     audiodsp
2012     blockdsp
2013     bswapdsp
2014     cabac
2015     dirac_parse
2016     dvprofile
2017     exif
2018     faandct
2019     faanidct
2020     fdctdsp
2021     flacdsp
2022     fmtconvert
2023     frame_thread_encoder
2024     g722dsp
2025     golomb
2026     gplv3
2027     h263dsp
2028     h264chroma
2029     h264dsp
2030     h264pred
2031     h264qpel
2032     hpeldsp
2033     huffman
2034     huffyuvdsp
2035     huffyuvencdsp
2036     idctdsp
2037     iirfilter
2038     imdct15
2039     intrax8
2040     iso_media
2041     ividsp
2042     jpegtables
2043     lgplv3
2044     libx262
2045     llauddsp
2046     llviddsp
2047     lpc
2048     lzf
2049     me_cmp
2050     mpeg_er
2051     mpegaudio
2052     mpegaudiodsp
2053     mpegvideo
2054     mpegvideoenc
2055     mss34dsp
2056     pixblockdsp
2057     qpeldsp
2058     qsv
2059     qsvdec
2060     qsvenc
2061     rangecoder
2062     riffdec
2063     riffenc
2064     rtpdec
2065     rtpenc_chain
2066     rv34dsp
2067     sinewin
2068     snappy
2069     startcode
2070     texturedsp
2071     texturedspenc
2072     tpeldsp
2073     vc1dsp
2074     videodsp
2075     vp3dsp
2076     vp56dsp
2077     vp8dsp
2078     wma_freqs
2079     wmv2dsp
2080 "
2081
2082 CMDLINE_SELECT="
2083     $ARCH_EXT_LIST
2084     $CONFIG_LIST
2085     $HAVE_LIST_CMDLINE
2086     $THREADS_LIST
2087     asm
2088     cross_compile
2089     debug
2090     extra_warnings
2091     logging
2092     lto
2093     optimizations
2094     rpath
2095     stripping
2096 "
2097
2098 PATHS_LIST="
2099     bindir
2100     datadir
2101     docdir
2102     incdir
2103     libdir
2104     mandir
2105     pkgconfigdir
2106     prefix
2107     shlibdir
2108     install_name_dir
2109 "
2110
2111 CMDLINE_SET="
2112     $PATHS_LIST
2113     ar
2114     arch
2115     as
2116     assert_level
2117     build_suffix
2118     cc
2119     objcc
2120     cpu
2121     cross_prefix
2122     custom_allocator
2123     cxx
2124     dep_cc
2125     doxygen
2126     env
2127     extra_version
2128     gas
2129     host_cc
2130     host_cflags
2131     host_ld
2132     host_ldflags
2133     host_libs
2134     host_os
2135     install
2136     ld
2137     logfile
2138     malloc_prefix
2139     nm
2140     optflags
2141     pkg_config
2142     pkg_config_flags
2143     progs_suffix
2144     random_seed
2145     ranlib
2146     samples
2147     strip
2148     sws_max_filter_size
2149     sysinclude
2150     sysroot
2151     target_exec
2152     target_os
2153     target_path
2154     target_samples
2155     tempprefix
2156     toolchain
2157     valgrind
2158     yasmexe
2159 "
2160
2161 CMDLINE_APPEND="
2162     extra_cflags
2163     extra_cxxflags
2164     extra_objcflags
2165     host_cppflags
2166 "
2167
2168 # code dependency declarations
2169
2170 # architecture extensions
2171
2172 armv5te_deps="arm"
2173 armv6_deps="arm"
2174 armv6t2_deps="arm"
2175 armv8_deps="aarch64"
2176 neon_deps_any="aarch64 arm"
2177 intrinsics_neon_deps="neon"
2178 vfp_deps_any="aarch64 arm"
2179 vfpv3_deps="vfp"
2180 setend_deps="arm"
2181
2182 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2183
2184 mipsfpu_deps="mips"
2185 mipsdsp_deps="mips"
2186 mipsdspr2_deps="mips"
2187 mips32r2_deps="mips"
2188 mips32r5_deps="mips"
2189 mips32r6_deps="mips"
2190 mips64r2_deps="mips"
2191 mips64r6_deps="mips"
2192 msa_deps="mipsfpu"
2193 mmi_deps="mips"
2194
2195 altivec_deps="ppc"
2196 dcbzl_deps="ppc"
2197 ldbrx_deps="ppc"
2198 ppc4xx_deps="ppc"
2199 vsx_deps="altivec"
2200 power8_deps="vsx"
2201
2202 cpunop_deps="i686"
2203 x86_64_select="i686"
2204 x86_64_suggest="fast_cmov"
2205
2206 amd3dnow_deps="mmx"
2207 amd3dnowext_deps="amd3dnow"
2208 i686_deps="x86"
2209 mmx_deps="x86"
2210 mmxext_deps="mmx"
2211 sse_deps="mmxext"
2212 sse2_deps="sse"
2213 sse3_deps="sse2"
2214 ssse3_deps="sse3"
2215 sse4_deps="ssse3"
2216 sse42_deps="sse4"
2217 aesni_deps="sse42"
2218 avx_deps="sse42"
2219 xop_deps="avx"
2220 fma3_deps="avx"
2221 fma4_deps="avx"
2222 avx2_deps="avx"
2223
2224 mmx_external_deps="yasm"
2225 mmx_inline_deps="inline_asm"
2226 mmx_suggest="mmx_external mmx_inline"
2227
2228 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2229     eval dep=\$${ext}_deps
2230     eval ${ext}_external_deps='"${dep}_external"'
2231     eval ${ext}_inline_deps='"${dep}_inline"'
2232     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2233 done
2234
2235 aligned_stack_if_any="aarch64 ppc x86"
2236 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2237 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2238 fast_unaligned_if_any="aarch64 ppc x86"
2239 simd_align_16_if_any="altivec neon sse"
2240
2241 # system capabilities
2242 symver_if_any="symver_asm_label symver_gnu_asm"
2243 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2244
2245 # threading support
2246 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2247 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2248 atomics_win32_if="MemoryBarrier"
2249 atomics_native_if_any="$ATOMICS_LIST"
2250 w32threads_deps="atomics_native"
2251 threads_if_any="$THREADS_LIST"
2252
2253 # subsystems
2254 dct_select="rdft"
2255 dirac_parse_select="golomb"
2256 error_resilience_select="me_cmp"
2257 faandct_deps="faan fdctdsp"
2258 faanidct_deps="faan idctdsp"
2259 h264dsp_select="startcode"
2260 frame_thread_encoder_deps="encoders threads"
2261 intrax8_select="error_resilience"
2262 mdct_select="fft"
2263 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2264 mpeg_er_select="error_resilience"
2265 mpegaudio_select="mpegaudiodsp"
2266 mpegaudiodsp_select="dct"
2267 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2268 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2269 qsvdec_select="qsv"
2270 qsvenc_select="qsv"
2271 vc1dsp_select="h264chroma qpeldsp startcode"
2272 rdft_select="fft"
2273
2274 # decoders / encoders
2275 aac_decoder_select="imdct15 mdct sinewin"
2276 aac_fixed_decoder_select="mdct sinewin"
2277 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2278 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2279 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2280 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2281 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2282 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2283 adpcm_g722_decoder_select="g722dsp"
2284 adpcm_g722_encoder_select="g722dsp"
2285 aic_decoder_select="golomb idctdsp"
2286 alac_encoder_select="lpc"
2287 als_decoder_select="bswapdsp"
2288 amrnb_decoder_select="lsp"
2289 amrwb_decoder_select="lsp"
2290 amv_decoder_select="sp5x_decoder exif"
2291 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2292 ape_decoder_select="bswapdsp llauddsp"
2293 apng_decoder_select="zlib"
2294 apng_encoder_select="huffyuvencdsp zlib"
2295 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2296 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2297 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2298 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2299 atrac1_decoder_select="mdct sinewin"
2300 atrac3_decoder_select="mdct"
2301 atrac3p_decoder_select="mdct sinewin"
2302 avrn_decoder_select="exif jpegtables"
2303 bink_decoder_select="blockdsp hpeldsp"
2304 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2305 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2306 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2307 cllc_decoder_select="bswapdsp"
2308 comfortnoise_encoder_select="lpc"
2309 cook_decoder_select="audiodsp mdct sinewin"
2310 cscd_decoder_select="lzo"
2311 cscd_decoder_suggest="zlib"
2312 dca_decoder_select="mdct"
2313 dds_decoder_select="texturedsp"
2314 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2315 dnxhd_decoder_select="blockdsp idctdsp"
2316 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2317 dvvideo_decoder_select="dvprofile idctdsp"
2318 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2319 dxa_decoder_select="zlib"
2320 dxv_decoder_select="lzf texturedsp"
2321 eac3_decoder_select="ac3_decoder"
2322 eac3_encoder_select="ac3_encoder"
2323 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2324 eatgq_decoder_select="aandcttables"
2325 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2326 exr_decoder_select="zlib"
2327 ffv1_decoder_select="golomb rangecoder"
2328 ffv1_encoder_select="rangecoder"
2329 ffvhuff_decoder_select="huffyuv_decoder"
2330 ffvhuff_encoder_select="huffyuv_encoder"
2331 fic_decoder_select="golomb"
2332 flac_decoder_select="flacdsp golomb"
2333 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2334 flashsv2_decoder_select="zlib"
2335 flashsv2_encoder_select="zlib"
2336 flashsv_decoder_select="zlib"
2337 flashsv_encoder_select="zlib"
2338 flv_decoder_select="h263_decoder"
2339 flv_encoder_select="h263_encoder"
2340 fourxm_decoder_select="blockdsp bswapdsp"
2341 fraps_decoder_select="bswapdsp huffman"
2342 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2343 g729_decoder_select="audiodsp"
2344 h261_decoder_select="mpegvideo"
2345 h261_encoder_select="aandcttables mpegvideoenc"
2346 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2347 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2348 h263i_decoder_select="h263_decoder"
2349 h263p_decoder_select="h263_decoder"
2350 h263p_encoder_select="h263_encoder"
2351 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2352 h264_decoder_suggest="error_resilience"
2353 h264_qsv_decoder_deps="libmfx"
2354 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2355 h264_qsv_encoder_deps="libmfx"
2356 h264_qsv_encoder_select="qsvenc"
2357 hap_decoder_select="snappy texturedsp"
2358 hap_encoder_deps="libsnappy"
2359 hap_encoder_select="texturedspenc"
2360 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2361 hevc_qsv_decoder_deps="libmfx"
2362 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2363 hevc_qsv_encoder_deps="libmfx"
2364 hevc_qsv_encoder_select="qsvenc"
2365 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2366 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2367 iac_decoder_select="imc_decoder"
2368 imc_decoder_select="bswapdsp fft mdct sinewin"
2369 indeo3_decoder_select="hpeldsp"
2370 indeo4_decoder_select="ividsp"
2371 indeo5_decoder_select="ividsp"
2372 interplay_video_decoder_select="hpeldsp"
2373 jpegls_decoder_select="golomb mjpeg_decoder"
2374 jpegls_encoder_select="golomb"
2375 jv_decoder_select="blockdsp"
2376 lagarith_decoder_select="huffyuvdsp"
2377 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2378 loco_decoder_select="golomb"
2379 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2380 metasound_decoder_select="lsp mdct sinewin"
2381 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2382 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2383 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2384 mjpegb_decoder_select="mjpeg_decoder"
2385 mlp_decoder_select="mlp_parser"
2386 motionpixels_decoder_select="bswapdsp"
2387 mp1_decoder_select="mpegaudio"
2388 mp1float_decoder_select="mpegaudio"
2389 mp2_decoder_select="mpegaudio"
2390 mp2float_decoder_select="mpegaudio"
2391 mp3_decoder_select="mpegaudio"
2392 mp3adu_decoder_select="mpegaudio"
2393 mp3adufloat_decoder_select="mpegaudio"
2394 mp3float_decoder_select="mpegaudio"
2395 mp3on4_decoder_select="mpegaudio"
2396 mp3on4float_decoder_select="mpegaudio"
2397 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2398 mpc8_decoder_select="mpegaudiodsp"
2399 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2400 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2401 mpegvideo_decoder_select="mpegvideo"
2402 mpeg1video_decoder_select="mpegvideo"
2403 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2404 mpeg2video_decoder_select="mpegvideo"
2405 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2406 mpeg2_qsv_decoder_deps="libmfx"
2407 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2408 mpeg2_qsv_encoder_deps="libmfx"
2409 mpeg2_qsv_encoder_select="qsvenc"
2410 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2411 mpeg4_encoder_select="h263_encoder"
2412 msa1_decoder_select="mss34dsp"
2413 msmpeg4v1_decoder_select="h263_decoder"
2414 msmpeg4v2_decoder_select="h263_decoder"
2415 msmpeg4v2_encoder_select="h263_encoder"
2416 msmpeg4v3_decoder_select="h263_decoder"
2417 msmpeg4v3_encoder_select="h263_encoder"
2418 mss2_decoder_select="vc1_decoder mpegvideo"
2419 mts2_decoder_select="mss34dsp"
2420 mxpeg_decoder_select="mjpeg_decoder"
2421 nellymoser_decoder_select="mdct sinewin"
2422 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2423 nuv_decoder_select="idctdsp lzo"
2424 on2avc_decoder_select="mdct"
2425 opus_decoder_deps="swresample"
2426 opus_decoder_select="imdct15"
2427 png_decoder_select="zlib"
2428 png_encoder_select="huffyuvencdsp zlib"
2429 prores_decoder_select="blockdsp idctdsp"
2430 prores_encoder_select="fdctdsp"
2431 qcelp_decoder_select="lsp"
2432 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2433 ra_144_decoder_select="audiodsp"
2434 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2435 ralf_decoder_select="golomb"
2436 rawvideo_decoder_select="bswapdsp"
2437 rscc_decoder_select="zlib"
2438 rtjpeg_decoder_select="me_cmp"
2439 rv10_decoder_select="h263_decoder"
2440 rv10_encoder_select="h263_encoder"
2441 rv20_decoder_select="h263_decoder"
2442 rv20_encoder_select="h263_encoder"
2443 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2444 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2445 screenpresso_decoder_select="zlib"
2446 shorten_decoder_select="golomb"
2447 sipr_decoder_select="lsp"
2448 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2449 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2450 sonic_decoder_select="golomb rangecoder"
2451 sonic_encoder_select="golomb rangecoder"
2452 sonic_ls_encoder_select="golomb rangecoder"
2453 sp5x_decoder_select="mjpeg_decoder"
2454 svq1_decoder_select="hpeldsp"
2455 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2456 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2457 svq3_decoder_suggest="zlib"
2458 tak_decoder_select="audiodsp"
2459 tdsc_decoder_select="zlib mjpeg_decoder"
2460 theora_decoder_select="vp3_decoder"
2461 thp_decoder_select="mjpeg_decoder"
2462 tiff_decoder_suggest="zlib lzma"
2463 tiff_encoder_suggest="zlib"
2464 truehd_decoder_select="mlp_parser"
2465 truemotion2_decoder_select="bswapdsp"
2466 truespeech_decoder_select="bswapdsp"
2467 tscc_decoder_select="zlib"
2468 twinvq_decoder_select="mdct lsp sinewin"
2469 txd_decoder_select="texturedsp"
2470 utvideo_decoder_select="bswapdsp"
2471 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2472 vble_decoder_select="huffyuvdsp"
2473 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2474 vc1_qsv_decoder_deps="libmfx"
2475 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2476 vc1image_decoder_select="vc1_decoder"
2477 vorbis_decoder_select="mdct"
2478 vorbis_encoder_select="mdct"
2479 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2480 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2481 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2482 vp6a_decoder_select="vp6_decoder"
2483 vp6f_decoder_select="vp6_decoder"
2484 vp7_decoder_select="h264pred videodsp vp8dsp"
2485 vp8_decoder_select="h264pred videodsp vp8dsp"
2486 vp9_decoder_select="videodsp vp9_parser"
2487 webp_decoder_select="vp8_decoder exif"
2488 wmalossless_decoder_select="llauddsp"
2489 wmapro_decoder_select="mdct sinewin wma_freqs"
2490 wmav1_decoder_select="mdct sinewin wma_freqs"
2491 wmav1_encoder_select="mdct sinewin wma_freqs"
2492 wmav2_decoder_select="mdct sinewin wma_freqs"
2493 wmav2_encoder_select="mdct sinewin wma_freqs"
2494 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2495 wmv1_decoder_select="h263_decoder"
2496 wmv1_encoder_select="h263_encoder"
2497 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2498 wmv2_encoder_select="h263_encoder wmv2dsp"
2499 wmv3_decoder_select="vc1_decoder"
2500 wmv3image_decoder_select="wmv3_decoder"
2501 xma1_decoder_select="wmapro_decoder"
2502 xma2_decoder_select="wmapro_decoder"
2503 zerocodec_decoder_select="zlib"
2504 zlib_decoder_select="zlib"
2505 zlib_encoder_select="zlib"
2506 zmbv_decoder_select="zlib"
2507 zmbv_encoder_select="zlib"
2508
2509 # platform codecs
2510 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2511 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2512
2513 # hardware accelerators
2514 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2515 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2516 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2517 vaapi_deps="va_va_h"
2518 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2519 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2520 vda_deps="vda_framework pthreads"
2521 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2522 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2523 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2524 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2525 xvmc_deps="X11_extensions_XvMClib_h"
2526
2527 h263_vaapi_hwaccel_deps="vaapi"
2528 h263_vaapi_hwaccel_select="h263_decoder"
2529 h263_videotoolbox_hwaccel_deps="videotoolbox"
2530 h263_videotoolbox_hwaccel_select="h263_decoder"
2531 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2532 h264_d3d11va_hwaccel_deps="d3d11va"
2533 h264_d3d11va_hwaccel_select="h264_decoder"
2534 h264_dxva2_hwaccel_deps="dxva2"
2535 h264_dxva2_hwaccel_select="h264_decoder"
2536 h264_mediacodec_decoder_deps="mediacodec"
2537 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2538 h264_mmal_decoder_deps="mmal"
2539 h264_mmal_decoder_select="mmal"
2540 h264_mmal_hwaccel_deps="mmal"
2541 h264_qsv_hwaccel_deps="libmfx"
2542 h264_vaapi_hwaccel_deps="vaapi"
2543 h264_vaapi_hwaccel_select="h264_decoder"
2544 h264_vda_decoder_deps="vda"
2545 h264_vda_decoder_select="h264_decoder"
2546 h264_vda_hwaccel_deps="vda"
2547 h264_vda_hwaccel_select="h264_decoder"
2548 h264_vda_old_hwaccel_deps="vda"
2549 h264_vda_old_hwaccel_select="h264_decoder"
2550 h264_vdpau_decoder_deps="vdpau"
2551 h264_vdpau_decoder_select="h264_decoder"
2552 h264_vdpau_hwaccel_deps="vdpau"
2553 h264_vdpau_hwaccel_select="h264_decoder"
2554 h264_videotoolbox_hwaccel_deps="videotoolbox"
2555 h264_videotoolbox_hwaccel_select="h264_decoder"
2556 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2557 hevc_d3d11va_hwaccel_select="hevc_decoder"
2558 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2559 hevc_dxva2_hwaccel_select="hevc_decoder"
2560 hevc_qsv_hwaccel_deps="libmfx"
2561 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2562 hevc_vaapi_hwaccel_select="hevc_decoder"
2563 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2564 hevc_vdpau_hwaccel_select="hevc_decoder"
2565 mpeg_vdpau_decoder_deps="vdpau"
2566 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2567 mpeg_xvmc_hwaccel_deps="xvmc"
2568 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2569 mpeg1_vdpau_decoder_deps="vdpau"
2570 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2571 mpeg1_vdpau_hwaccel_deps="vdpau"
2572 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2573 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2574 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2575 mpeg1_xvmc_hwaccel_deps="xvmc"
2576 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2577 mpeg2_crystalhd_decoder_select="crystalhd"
2578 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2579 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2580 mpeg2_dxva2_hwaccel_deps="dxva2"
2581 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2582 mpeg2_mmal_decoder_deps="mmal"
2583 mpeg2_mmal_decoder_select="mmal"
2584 mpeg2_mmal_hwaccel_deps="mmal"
2585 mpeg2_qsv_hwaccel_deps="libmfx"
2586 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2587 mpeg2_vaapi_hwaccel_deps="vaapi"
2588 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2589 mpeg2_vdpau_hwaccel_deps="vdpau"
2590 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2591 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2592 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2593 mpeg2_xvmc_hwaccel_deps="xvmc"
2594 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2595 mpeg4_crystalhd_decoder_select="crystalhd"
2596 mpeg4_mmal_decoder_deps="mmal"
2597 mpeg4_mmal_decoder_select="mmal"
2598 mpeg4_mmal_hwaccel_deps="mmal"
2599 mpeg4_vaapi_hwaccel_deps="vaapi"
2600 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2601 mpeg4_vdpau_decoder_deps="vdpau"
2602 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2603 mpeg4_vdpau_hwaccel_deps="vdpau"
2604 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2605 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2606 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2607 msmpeg4_crystalhd_decoder_select="crystalhd"
2608 vc1_crystalhd_decoder_select="crystalhd"
2609 vc1_d3d11va_hwaccel_deps="d3d11va"
2610 vc1_d3d11va_hwaccel_select="vc1_decoder"
2611 vc1_dxva2_hwaccel_deps="dxva2"
2612 vc1_dxva2_hwaccel_select="vc1_decoder"
2613 vc1_mmal_decoder_deps="mmal"
2614 vc1_mmal_decoder_select="mmal"
2615 vc1_mmal_hwaccel_deps="mmal"
2616 vc1_qsv_hwaccel_deps="libmfx"
2617 vc1_qsv_hwaccel_select="qsvdec_vc1"
2618 vc1_vaapi_hwaccel_deps="vaapi"
2619 vc1_vaapi_hwaccel_select="vc1_decoder"
2620 vc1_vdpau_decoder_deps="vdpau"
2621 vc1_vdpau_decoder_select="vc1_decoder"
2622 vc1_vdpau_hwaccel_deps="vdpau"
2623 vc1_vdpau_hwaccel_select="vc1_decoder"
2624 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2625 vp9_d3d11va_hwaccel_select="vp9_decoder"
2626 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2627 vp9_dxva2_hwaccel_select="vp9_decoder"
2628 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2629 vp9_vaapi_hwaccel_select="vp9_decoder"
2630 wmv3_crystalhd_decoder_select="crystalhd"
2631 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2632 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2633 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2634 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2635 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2636
2637 # parsers
2638 h264_parser_select="h264_decoder"
2639 hevc_parser_select="golomb"
2640 mpegvideo_parser_select="mpegvideo"
2641 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2642 vc1_parser_select="vc1dsp"
2643
2644 # bitstream_filters
2645 mjpeg2jpeg_bsf_select="jpegtables"
2646
2647 # external libraries
2648 aac_at_decoder_deps="audiotoolbox"
2649 ac3_at_decoder_deps="audiotoolbox"
2650 ac3_at_decoder_select="ac3_parser"
2651 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2652 alac_at_decoder_deps="audiotoolbox"
2653 amr_nb_at_decoder_deps="audiotoolbox"
2654 eac3_at_decoder_deps="audiotoolbox"
2655 eac3_at_decoder_select="ac3_parser"
2656 gsm_ms_at_decoder_deps="audiotoolbox"
2657 ilbc_at_decoder_deps="audiotoolbox"
2658 mp1_at_decoder_deps="audiotoolbox"
2659 mp2_at_decoder_deps="audiotoolbox"
2660 mp3_at_decoder_deps="audiotoolbox"
2661 pcm_alaw_at_decoder_deps="audiotoolbox"
2662 pcm_mulaw_at_decoder_deps="audiotoolbox"
2663 qdmc_at_decoder_deps="audiotoolbox"
2664 qdm2_at_decoder_deps="audiotoolbox"
2665 aac_at_encoder_deps="audiotoolbox"
2666 aac_at_encoder_select="audio_frame_queue"
2667 alac_at_encoder_deps="audiotoolbox"
2668 alac_at_encoder_select="audio_frame_queue"
2669 ilbc_at_encoder_deps="audiotoolbox"
2670 ilbc_at_encoder_select="audio_frame_queue"
2671 pcm_alaw_at_encoder_deps="audiotoolbox"
2672 pcm_alaw_at_encoder_select="audio_frame_queue"
2673 pcm_mulaw_at_encoder_deps="audiotoolbox"
2674 pcm_mulaw_at_encoder_select="audio_frame_queue"
2675 chromaprint_muxer_deps="chromaprint"
2676 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2677 libcelt_decoder_deps="libcelt"
2678 libfaac_encoder_deps="libfaac"
2679 libfaac_encoder_select="audio_frame_queue"
2680 libfdk_aac_decoder_deps="libfdk_aac"
2681 libfdk_aac_encoder_deps="libfdk_aac"
2682 libfdk_aac_encoder_select="audio_frame_queue"
2683 libgme_demuxer_deps="libgme"
2684 libgsm_decoder_deps="libgsm"
2685 libgsm_encoder_deps="libgsm"
2686 libgsm_ms_decoder_deps="libgsm"
2687 libgsm_ms_encoder_deps="libgsm"
2688 libilbc_decoder_deps="libilbc"
2689 libilbc_encoder_deps="libilbc"
2690 libkvazaar_encoder_deps="libkvazaar"
2691 libmodplug_demuxer_deps="libmodplug"
2692 libmp3lame_encoder_deps="libmp3lame"
2693 libmp3lame_encoder_select="audio_frame_queue"
2694 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2695 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2696 libopencore_amrnb_encoder_select="audio_frame_queue"
2697 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2698 libopenh264_encoder_deps="libopenh264"
2699 libopenjpeg_decoder_deps="libopenjpeg"
2700 libopenjpeg_encoder_deps="libopenjpeg"
2701 libopus_decoder_deps="libopus"
2702 libopus_encoder_deps="libopus"
2703 libopus_encoder_select="audio_frame_queue"
2704 libschroedinger_decoder_deps="libschroedinger"
2705 libschroedinger_encoder_deps="libschroedinger"
2706 libshine_encoder_deps="libshine"
2707 libshine_encoder_select="audio_frame_queue"
2708 libspeex_decoder_deps="libspeex"
2709 libspeex_encoder_deps="libspeex"
2710 libspeex_encoder_select="audio_frame_queue"
2711 libtheora_encoder_deps="libtheora"
2712 libtwolame_encoder_deps="libtwolame"
2713 libutvideo_decoder_deps="libutvideo"
2714 libutvideo_encoder_deps="libutvideo"
2715 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2716 libvorbis_decoder_deps="libvorbis"
2717 libvorbis_encoder_deps="libvorbis"
2718 libvorbis_encoder_select="audio_frame_queue"
2719 libvpx_vp8_decoder_deps="libvpx"
2720 libvpx_vp8_encoder_deps="libvpx"
2721 libvpx_vp9_decoder_deps="libvpx"
2722 libvpx_vp9_encoder_deps="libvpx"
2723 libwavpack_encoder_deps="libwavpack"
2724 libwebp_encoder_deps="libwebp"
2725 libwebp_anim_encoder_deps="libwebp"
2726 libx262_encoder_deps="libx262"
2727 libx264_encoder_deps="libx264"
2728 libx264rgb_encoder_deps="libx264"
2729 libx264rgb_encoder_select="libx264_encoder"
2730 libx265_encoder_deps="libx265"
2731 libxavs_encoder_deps="libxavs"
2732 libxvid_encoder_deps="libxvid"
2733 libzvbi_teletext_decoder_deps="libzvbi"
2734 nvenc_encoder_deps="nvenc"
2735 nvenc_h264_encoder_deps="nvenc"
2736 nvenc_hevc_encoder_deps="nvenc"
2737 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2738 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2739 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2740 videotoolbox_encoder_suggest="vda_framework"
2741
2742 # demuxers / muxers
2743 ac3_demuxer_select="ac3_parser"
2744 asf_demuxer_select="riffdec"
2745 asf_o_demuxer_select="riffdec"
2746 asf_muxer_select="riffenc"
2747 asf_stream_muxer_select="asf_muxer"
2748 avi_demuxer_select="iso_media riffdec exif"
2749 avi_muxer_select="riffenc"
2750 avisynth_demuxer_deps="avisynth"
2751 avisynth_demuxer_select="riffdec"
2752 caf_demuxer_select="iso_media riffdec"
2753 dash_muxer_select="mp4_muxer"
2754 dirac_demuxer_select="dirac_parser"
2755 dts_demuxer_select="dca_parser"
2756 dtshd_demuxer_select="dca_parser"
2757 dv_demuxer_select="dvprofile"
2758 dv_muxer_select="dvprofile"
2759 dxa_demuxer_select="riffdec"
2760 eac3_demuxer_select="ac3_parser"
2761 f4v_muxer_select="mov_muxer"
2762 flac_demuxer_select="flac_parser"
2763 hds_muxer_select="flv_muxer"
2764 hls_muxer_select="mpegts_muxer"
2765 image2_alias_pix_demuxer_select="image2_demuxer"
2766 image2_brender_pix_demuxer_select="image2_demuxer"
2767 ipod_muxer_select="mov_muxer"
2768 ismv_muxer_select="mov_muxer"
2769 libnut_demuxer_deps="libnut"
2770 libnut_muxer_deps="libnut"
2771 matroska_audio_muxer_select="matroska_muxer"
2772 matroska_demuxer_select="iso_media riffdec"
2773 matroska_demuxer_suggest="bzlib lzo zlib"
2774 matroska_muxer_select="iso_media riffenc"
2775 mmf_muxer_select="riffenc"
2776 mov_demuxer_select="iso_media riffdec"
2777 mov_demuxer_suggest="zlib"
2778 mov_muxer_select="iso_media riffenc rtpenc_chain"
2779 mp3_demuxer_select="mpegaudio_parser"
2780 mp4_muxer_select="mov_muxer"
2781 mpegts_demuxer_select="iso_media"
2782 mpegts_muxer_select="adts_muxer latm_muxer"
2783 mpegtsraw_demuxer_select="mpegts_demuxer"
2784 mxf_d10_muxer_select="mxf_muxer"
2785 mxf_opatom_muxer_select="mxf_muxer"
2786 nut_muxer_select="riffenc"
2787 nuv_demuxer_select="riffdec"
2788 oga_muxer_select="ogg_muxer"
2789 ogg_demuxer_select="dirac_parse"
2790 opus_muxer_select="ogg_muxer"
2791 psp_muxer_select="mov_muxer"
2792 rtp_demuxer_select="sdp_demuxer"
2793 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2794 rtsp_demuxer_select="http_protocol rtpdec"
2795 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2796 sap_demuxer_select="sdp_demuxer"
2797 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2798 sdp_demuxer_select="rtpdec"
2799 smoothstreaming_muxer_select="ismv_muxer"
2800 spdif_muxer_select="aac_parser"
2801 spx_muxer_select="ogg_muxer"
2802 swf_demuxer_suggest="zlib"
2803 tak_demuxer_select="tak_parser"
2804 tg2_muxer_select="mov_muxer"
2805 tgp_muxer_select="mov_muxer"
2806 vobsub_demuxer_select="mpegps_demuxer"
2807 w64_demuxer_select="wav_demuxer"
2808 w64_muxer_select="wav_muxer"
2809 wav_demuxer_select="riffdec"
2810 wav_muxer_select="riffenc"
2811 webm_muxer_select="iso_media riffenc"
2812 webm_dash_manifest_demuxer_select="matroska_demuxer"
2813 wtv_demuxer_select="mpegts_demuxer riffdec"
2814 wtv_muxer_select="mpegts_muxer riffenc"
2815 xmv_demuxer_select="riffdec"
2816 xwma_demuxer_select="riffdec"
2817
2818 # indevs / outdevs
2819 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2820 alsa_outdev_deps="alsa_asoundlib_h"
2821 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2822 avfoundation_indev_select="avfoundation"
2823 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2824 caca_outdev_deps="libcaca"
2825 decklink_indev_deps="decklink pthreads"
2826 decklink_indev_extralibs="-lstdc++"
2827 decklink_outdev_deps="decklink pthreads"
2828 decklink_outdev_extralibs="-lstdc++"
2829 dshow_indev_deps="IBaseFilter"
2830 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2831 dv1394_indev_deps="dv1394"
2832 dv1394_indev_select="dv_demuxer"
2833 fbdev_indev_deps="linux_fb_h"
2834 fbdev_outdev_deps="linux_fb_h"
2835 gdigrab_indev_deps="CreateDIBSection"
2836 gdigrab_indev_extralibs="-lgdi32"
2837 gdigrab_indev_select="bmp_decoder"
2838 iec61883_indev_deps="libiec61883"
2839 jack_indev_deps="jack_jack_h"
2840 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2841 lavfi_indev_deps="avfilter"
2842 libcdio_indev_deps="libcdio"
2843 libdc1394_indev_deps="libdc1394"
2844 libv4l2_indev_deps="libv4l2"
2845 openal_indev_deps="openal"
2846 opengl_outdev_deps="opengl"
2847 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2848 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2849 pulse_indev_deps="libpulse"
2850 pulse_outdev_deps="libpulse"
2851 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2852 qtkit_indev_select="qtkit"
2853 sdl_outdev_deps="sdl"
2854 sndio_indev_deps="sndio_h"
2855 sndio_outdev_deps="sndio_h"
2856 v4l_indev_deps="linux_videodev_h"
2857 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2858 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2859 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2860 vfwcap_indev_extralibs="-lavicap32"
2861 x11grab_indev_deps="x11grab"
2862 x11grab_xcb_indev_deps="libxcb"
2863 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2864 xv_outdev_extralibs="-lXv -lX11 -lXext"
2865
2866 # protocols
2867 async_protocol_deps="threads"
2868 bluray_protocol_deps="libbluray"
2869 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2870 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2871 ffrtmpcrypt_protocol_select="tcp_protocol"
2872 ffrtmphttp_protocol_deps="!librtmp_protocol"
2873 ffrtmphttp_protocol_select="http_protocol"
2874 ftp_protocol_select="tcp_protocol"
2875 gopher_protocol_select="network"
2876 http_protocol_select="tcp_protocol"
2877 httpproxy_protocol_select="tcp_protocol"
2878 https_protocol_select="tls_protocol"
2879 icecast_protocol_select="http_protocol"
2880 librtmp_protocol_deps="librtmp"
2881 librtmpe_protocol_deps="librtmp"
2882 librtmps_protocol_deps="librtmp"
2883 librtmpt_protocol_deps="librtmp"
2884 librtmpte_protocol_deps="librtmp"
2885 libsmbclient_protocol_deps="libsmbclient gplv3"
2886 libssh_protocol_deps="libssh"
2887 mmsh_protocol_select="http_protocol"
2888 mmst_protocol_select="network"
2889 rtmp_protocol_deps="!librtmp_protocol"
2890 rtmp_protocol_select="tcp_protocol"
2891 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2892 rtmps_protocol_deps="!librtmp_protocol"
2893 rtmps_protocol_select="tls_protocol"
2894 rtmpt_protocol_select="ffrtmphttp_protocol"
2895 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2896 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2897 rtp_protocol_select="udp_protocol"
2898 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2899 sctp_protocol_select="network"
2900 srtp_protocol_select="rtp_protocol"
2901 tcp_protocol_select="network"
2902 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2903 tls_gnutls_protocol_select="tcp_protocol"
2904 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2905 tls_openssl_protocol_select="tcp_protocol"
2906 tls_schannel_protocol_deps="schannel"
2907 tls_schannel_protocol_select="tcp_protocol"
2908 tls_securetransport_protocol_deps="securetransport"
2909 tls_securetransport_protocol_select="tcp_protocol"
2910 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2911 udp_protocol_select="network"
2912 udplite_protocol_select="network"
2913 unix_protocol_deps="sys_un_h"
2914 unix_protocol_select="network"
2915
2916 # filters
2917 afftfilt_filter_deps="avcodec"
2918 afftfilt_filter_select="fft"
2919 amovie_filter_deps="avcodec avformat"
2920 aresample_filter_deps="swresample"
2921 ass_filter_deps="libass"
2922 asyncts_filter_deps="avresample"
2923 atempo_filter_deps="avcodec"
2924 atempo_filter_select="rdft"
2925 azmq_filter_deps="libzmq"
2926 blackframe_filter_deps="gpl"
2927 boxblur_filter_deps="gpl"
2928 bs2b_filter_deps="libbs2b"
2929 colormatrix_filter_deps="gpl"
2930 cover_rect_filter_deps="avcodec avformat gpl"
2931 cropdetect_filter_deps="gpl"
2932 delogo_filter_deps="gpl"
2933 deshake_filter_select="pixelutils"
2934 drawtext_filter_deps="libfreetype"
2935 ebur128_filter_deps="gpl"
2936 eq_filter_deps="gpl"
2937 fftfilt_filter_deps="avcodec"
2938 fftfilt_filter_select="rdft"
2939 find_rect_filter_deps="avcodec avformat gpl"
2940 firequalizer_filter_deps="avcodec"
2941 firequalizer_filter_select="rdft"
2942 flite_filter_deps="libflite"
2943 frei0r_filter_deps="frei0r dlopen"
2944 frei0r_src_filter_deps="frei0r dlopen"
2945 fspp_filter_deps="gpl"
2946 geq_filter_deps="gpl"
2947 histeq_filter_deps="gpl"
2948 hqdn3d_filter_deps="gpl"
2949 hwupload_cuda_filter_deps="cuda"
2950 interlace_filter_deps="gpl"
2951 kerndeint_filter_deps="gpl"
2952 ladspa_filter_deps="ladspa dlopen"
2953 mcdeint_filter_deps="avcodec gpl"
2954 movie_filter_deps="avcodec avformat"
2955 mpdecimate_filter_deps="gpl"
2956 mpdecimate_filter_select="pixelutils"
2957 mptestsrc_filter_deps="gpl"
2958 negate_filter_deps="lut_filter"
2959 nnedi_filter_deps="gpl"
2960 ocr_filter_deps="libtesseract"
2961 ocv_filter_deps="libopencv"
2962 owdenoise_filter_deps="gpl"
2963 pan_filter_deps="swresample"
2964 perspective_filter_deps="gpl"
2965 phase_filter_deps="gpl"
2966 pp7_filter_deps="gpl"
2967 pp_filter_deps="gpl postproc"
2968 pullup_filter_deps="gpl"
2969 removelogo_filter_deps="avcodec avformat swscale"
2970 repeatfields_filter_deps="gpl"
2971 resample_filter_deps="avresample"
2972 rubberband_filter_deps="librubberband"
2973 sab_filter_deps="gpl swscale"
2974 scale2ref_filter_deps="swscale"
2975 scale_filter_deps="swscale"
2976 select_filter_select="pixelutils"
2977 showcqt_filter_deps="avcodec avformat swscale"
2978 showcqt_filter_select="fft"
2979 showfreqs_filter_deps="avcodec"
2980 showfreqs_filter_select="fft"
2981 showspectrum_filter_deps="avcodec"
2982 showspectrum_filter_select="fft"
2983 showspectrumpic_filter_deps="avcodec"
2984 showspectrumpic_filter_select="fft"
2985 smartblur_filter_deps="gpl swscale"
2986 sofalizer_filter_deps="netcdf avcodec"
2987 sofalizer_filter_select="fft"
2988 spectrumsynth_filter_deps="avcodec"
2989 spectrumsynth_filter_select="fft"
2990 spp_filter_deps="gpl avcodec"
2991 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2992 stereo3d_filter_deps="gpl"
2993 subtitles_filter_deps="avformat avcodec libass"
2994 super2xsai_filter_deps="gpl"
2995 pixfmts_super2xsai_test_deps="super2xsai_filter"
2996 tinterlace_filter_deps="gpl"
2997 tinterlace_merge_test_deps="tinterlace_filter"
2998 tinterlace_pad_test_deps="tinterlace_filter"
2999 uspp_filter_deps="gpl avcodec"
3000 vidstabdetect_filter_deps="libvidstab"
3001 vidstabtransform_filter_deps="libvidstab"
3002 zmq_filter_deps="libzmq"
3003 zoompan_filter_deps="swscale"
3004 zscale_filter_deps="libzimg"
3005
3006 # examples
3007 avcodec_example_deps="avcodec avutil"
3008 avio_dir_cmd="avformat avutil"
3009 avio_reading="avformat avcodec avutil"
3010 decoding_encoding_example_deps="avcodec avformat avutil"
3011 demuxing_decoding_example_deps="avcodec avformat avutil"
3012 extract_mvs_example_deps="avcodec avformat avutil"
3013 filter_audio_example_deps="avfilter avutil"
3014 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3015 filtering_video_example_deps="avfilter avcodec avformat avutil"
3016 metadata_example_deps="avformat avutil"
3017 muxing_example_deps="avcodec avformat avutil swscale"
3018 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3019 remuxing_example_deps="avcodec avformat avutil"
3020 resampling_audio_example_deps="avutil swresample"
3021 scaling_video_example_deps="avutil swscale"
3022 transcode_aac_example_deps="avcodec avformat swresample"
3023 transcoding_example_deps="avfilter avcodec avformat avutil"
3024
3025 # libraries, in linking order
3026 avcodec_deps="avutil"
3027 avdevice_deps="avformat avcodec avutil"
3028 avfilter_deps="avutil"
3029 avformat_deps="avcodec avutil"
3030 avresample_deps="avutil"
3031 postproc_deps="avutil gpl"
3032 swresample_deps="avutil"
3033 swscale_deps="avutil"
3034
3035 # programs
3036 ffmpeg_deps="avcodec avfilter avformat swresample"
3037 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3038                null_filter
3039                setpts_filter trim_filter"
3040 ffplay_deps="avcodec avformat swscale swresample sdl"
3041 ffplay_libs='$sdl_libs'
3042 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3043 ffprobe_deps="avcodec avformat"
3044 ffserver_deps="avformat fork sarestart"
3045 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3046
3047 # documentation
3048 podpages_deps="perl"
3049 manpages_deps="perl pod2man"
3050 htmlpages_deps="perl"
3051 htmlpages_deps_any="makeinfo_html texi2html"
3052 txtpages_deps="perl makeinfo"
3053 doc_deps_any="manpages htmlpages podpages txtpages"
3054
3055 # default parameters
3056
3057 logfile="config.log"
3058
3059 # installation paths
3060 prefix_default="/usr/local"
3061 bindir_default='${prefix}/bin'
3062 datadir_default='${prefix}/share/ffmpeg'
3063 docdir_default='${prefix}/share/doc/ffmpeg'
3064 incdir_default='${prefix}/include'
3065 libdir_default='${prefix}/lib'
3066 mandir_default='${prefix}/share/man'
3067
3068 # toolchain
3069 ar_default="ar"
3070 cc_default="gcc"
3071 cxx_default="g++"
3072 host_cc_default="gcc"
3073 cp_f="cp -f"
3074 doxygen_default="doxygen"
3075 install="install"
3076 ln_s="ln -s -f"
3077 nm_default="nm -g"
3078 objformat="elf"
3079 pkg_config_default=pkg-config
3080 ranlib_default="ranlib"
3081 strip_default="strip"
3082 yasmexe_default="yasm"
3083 windres_default="windres"
3084
3085 # OS
3086 target_os_default=$(tolower $(uname -s))
3087 host_os=$target_os_default
3088
3089 # machine
3090 if test "$target_os_default" = aix; then
3091     arch_default=$(uname -p)
3092     strip_default="strip -X32_64"
3093 else
3094     arch_default=$(uname -m)
3095 fi
3096 cpu="generic"
3097 intrinsics="none"
3098
3099 # configurable options
3100 enable $PROGRAM_LIST
3101 enable $DOCUMENT_LIST
3102 enable $EXAMPLE_LIST
3103 enable $(filter_out avresample $LIBRARY_LIST)
3104 enable stripping
3105
3106 enable asm
3107 enable debug
3108 enable doc
3109 enable faan faandct faanidct
3110 enable optimizations
3111 enable runtime_cpudetect
3112 enable safe_bitstream_reader
3113 enable static
3114 enable swscale_alpha
3115 enable valgrind_backtrace
3116
3117 sws_max_filter_size_default=256
3118 set_default sws_max_filter_size
3119
3120 # Enable platform codecs by default.
3121 enable audiotoolbox
3122
3123 # Enable hwaccels by default.
3124 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3125 enable xlib
3126
3127 enable vda_framework videotoolbox videotoolbox_encoder
3128
3129 # build settings
3130 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3131 LIBPREF="lib"
3132 LIBSUF=".a"
3133 FULLNAME='$(NAME)$(BUILDSUF)'
3134 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3135 SLIBPREF="lib"
3136 SLIBSUF=".so"
3137 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3138 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3139 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3140 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3141 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3142 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3143
3144 asflags_filter=echo
3145 cflags_filter=echo
3146 ldflags_filter=echo
3147
3148 AS_C='-c'
3149 AS_O='-o $@'
3150 CC_C='-c'
3151 CC_E='-E -o $@'
3152 CC_O='-o $@'
3153 CXX_C='-c'
3154 CXX_O='-o $@'
3155 OBJCC_C='-c'
3156 OBJCC_E='-E -o $@'
3157 OBJCC_O='-o $@'
3158 LD_O='-o $@'
3159 LD_LIB='-l%'
3160 LD_PATH='-L'
3161 HOSTCC_C='-c'
3162 HOSTCC_E='-E -o $@'
3163 HOSTCC_O='-o $@'
3164 HOSTLD_O='-o $@'
3165
3166 host_libs='-lm'
3167 host_cflags_filter=echo
3168 host_ldflags_filter=echo
3169
3170 target_path='$(CURDIR)'
3171
3172 # since the object filename is not given with the -MM flag, the compiler
3173 # is only able to print the basename, and we must add the path ourselves
3174 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3175 DEPFLAGS='-MM'
3176
3177 # find source path
3178 if test -f configure; then
3179     source_path=.
3180 else
3181     source_path=$(cd $(dirname "$0"); pwd)
3182     case "$source_path" in
3183         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3184     esac
3185     test -e "$source_path/config.h" &&
3186         die "Out of tree builds are impossible with config.h in source dir."
3187 fi
3188
3189 for v in "$@"; do
3190     r=${v#*=}
3191     l=${v%"$r"}
3192     r=$(sh_quote "$r")
3193     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3194 done
3195
3196 find_things(){
3197     thing=$1
3198     pattern=$2
3199     file=$source_path/$3
3200     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3201 }
3202
3203 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3204 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3205 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3206 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3207 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3208 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3209 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3210 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3211 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3212 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3213
3214 find_things_extern(){
3215     thing=$1
3216     pattern=$2
3217     file=$source_path/$3
3218     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3219 }
3220
3221 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3222
3223 ALL_COMPONENTS="
3224     $BSF_LIST
3225     $DECODER_LIST
3226     $DEMUXER_LIST
3227     $ENCODER_LIST
3228     $FILTER_LIST
3229     $HWACCEL_LIST
3230     $INDEV_LIST
3231     $MUXER_LIST
3232     $OUTDEV_LIST
3233     $PARSER_LIST
3234     $PROTOCOL_LIST
3235 "
3236
3237 for n in $COMPONENT_LIST; do
3238     v=$(toupper ${n%s})_LIST
3239     eval enable \$$v
3240     eval ${n}_if_any="\$$v"
3241 done
3242
3243 enable $ARCH_EXT_LIST
3244
3245 die_unknown(){
3246     echo "Unknown option \"$1\"."
3247     echo "See $0 --help for available options."
3248     exit 1
3249 }
3250
3251 print_in_columns() {
3252     cols=$(expr $ncols / 24)
3253     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3254 }
3255
3256 show_list() {
3257     suffix=_$1
3258     shift
3259     echo $* | sed s/$suffix//g | print_in_columns
3260     exit 0
3261 }
3262
3263 rand_list(){
3264     IFS=', '
3265     set -- $*
3266     unset IFS
3267     for thing; do
3268         comp=${thing%:*}
3269         prob=${thing#$comp}
3270         prob=${prob#:}
3271         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3272         echo "prob ${prob:-0.5}"
3273         printf '%s\n' $comp
3274     done
3275 }
3276
3277 do_random(){
3278     action=$1
3279     shift
3280     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3281     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3282 }
3283
3284 for opt do
3285     optval="${opt#*=}"
3286     case "$opt" in
3287         --extra-ldflags=*)
3288             add_ldflags $optval
3289         ;;
3290         --extra-ldexeflags=*)
3291             add_ldexeflags $optval
3292         ;;
3293         --extra-ldlibflags=*)
3294             add_ldlibflags $optval
3295         ;;
3296         --extra-libs=*)
3297             add_extralibs $optval
3298         ;;
3299         --disable-devices)
3300             disable $INDEV_LIST $OUTDEV_LIST
3301         ;;
3302         --enable-debug=*)
3303             debuglevel="$optval"
3304         ;;
3305         --disable-programs)
3306             disable $PROGRAM_LIST
3307         ;;
3308         --disable-everything)
3309             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3310         ;;
3311         --disable-all)
3312             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3313             disable $LIBRARY_LIST $PROGRAM_LIST doc
3314             enable avutil
3315         ;;
3316         --enable-random|--disable-random)
3317             action=${opt%%-random}
3318             do_random ${action#--} $COMPONENT_LIST
3319         ;;
3320         --enable-random=*|--disable-random=*)
3321             action=${opt%%-random=*}
3322             do_random ${action#--} $optval
3323         ;;
3324         --enable-*=*|--disable-*=*)
3325             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3326             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3327             eval list=\$$(toupper $thing)_LIST
3328             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3329             list=$(filter "$name" $list)
3330             [ "$list" = "" ] && warn "Option $opt did not match anything"
3331             $action $list
3332         ;;
3333         --enable-?*|--disable-?*)
3334             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3335             if is_in $option $COMPONENT_LIST; then
3336                 test $action = disable && action=unset
3337                 eval $action \$$(toupper ${option%s})_LIST
3338             elif is_in $option $CMDLINE_SELECT; then
3339                 $action $option
3340             else
3341                 die_unknown $opt
3342             fi
3343         ;;
3344         --list-*)
3345             NAME="${opt#--list-}"
3346             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3347             NAME=${NAME%s}
3348             eval show_list $NAME \$$(toupper $NAME)_LIST
3349         ;;
3350         --help|-h) show_help
3351         ;;
3352         --fatal-warnings) enable fatal_warnings
3353         ;;
3354         *)
3355             optname="${opt%%=*}"
3356             optname="${optname#--}"
3357             optname=$(echo "$optname" | sed 's/-/_/g')
3358             if is_in $optname $CMDLINE_SET; then
3359                 eval $optname='$optval'
3360             elif is_in $optname $CMDLINE_APPEND; then
3361                 append $optname "$optval"
3362             else
3363                 die_unknown $opt
3364             fi
3365         ;;
3366     esac
3367 done
3368
3369 for e in $env; do
3370     eval "export $e"
3371 done
3372
3373 disabled logging && logfile=/dev/null
3374
3375 # Disable all the library-specific components if the library itself
3376 # is disabled, see AVCODEC_LIST and following _LIST variables.
3377
3378 disable_components(){
3379     disabled ${1} && disable $(
3380         eval components="\$$(toupper ${1})_COMPONENTS"
3381         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3382     )
3383 }
3384
3385 map 'disable_components $v' $LIBRARY_LIST
3386
3387 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3388 set >> $logfile
3389
3390 test -n "$valgrind" && toolchain="valgrind-memcheck"
3391
3392 case "$toolchain" in
3393     *-asan)
3394         cc_default="${toolchain%-asan}"
3395         add_cflags  -fsanitize=address
3396         add_ldflags -fsanitize=address
3397     ;;
3398     *-msan)
3399         cc_default="${toolchain%-msan}"
3400         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3401         add_ldflags -fsanitize=memory
3402     ;;
3403     *-tsan)
3404         cc_default="${toolchain%-tsan}"
3405         add_cflags  -fsanitize=thread -pie
3406         add_ldflags -fsanitize=thread -pie
3407         case "$toolchain" in
3408             gcc-tsan)
3409                 add_cflags  -fPIC
3410                 add_ldflags -fPIC
3411                 ;;
3412         esac
3413     ;;
3414     *-usan)
3415         cc_default="${toolchain%-usan}"
3416         add_cflags  -fsanitize=undefined
3417         add_ldflags -fsanitize=undefined
3418     ;;
3419     valgrind-*)
3420         target_exec_default="valgrind"
3421         case "$toolchain" in
3422             valgrind-massif)
3423                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3424                 ;;
3425             valgrind-memcheck)
3426                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3427                 ;;
3428         esac
3429     ;;
3430     msvc)
3431         # Check whether the current MSVC version needs the C99 converter.
3432         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3433         # support enough of C99 to build ffmpeg. Default to the new
3434         # behaviour if the regexp was unable to match anything, since this
3435         # successfully parses the version number of existing supported
3436         # versions that require the converter (MSVC 2010 and 2012).
3437         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3438         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3439             cc_default="cl"
3440         else
3441             cc_default="c99wrap cl"
3442         fi
3443         ld_default="$source_path/compat/windows/mslink"
3444         nm_default="dumpbin -symbols"
3445         ar_default="lib"
3446         case "$arch" in
3447         arm*)
3448             as_default="armasm"
3449             ;;
3450         esac
3451         target_os_default="win32"
3452         # Use a relative path for TMPDIR. This makes sure all the
3453         # ffconf temp files are written with a relative path, avoiding
3454         # issues with msys/win32 path conversion for MSVC parameters
3455         # such as -Fo<file> or -out:<file>.
3456         TMPDIR=.
3457     ;;
3458     icl)
3459         cc_default="icl"
3460         ld_default="xilink"
3461         nm_default="dumpbin -symbols"
3462         ar_default="xilib"
3463         target_os_default="win32"
3464         TMPDIR=.
3465     ;;
3466     gcov)
3467         add_cflags  -fprofile-arcs -ftest-coverage
3468         add_ldflags -fprofile-arcs -ftest-coverage
3469     ;;
3470     hardened)
3471         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3472         add_cflags   -fno-strict-overflow -fstack-protector-all
3473         add_ldflags  -Wl,-z,relro -Wl,-z,now
3474     ;;
3475     ?*)
3476         die "Unknown toolchain $toolchain"
3477     ;;
3478 esac
3479
3480 test -n "$cross_prefix" && enable cross_compile
3481
3482 if enabled cross_compile; then
3483     test -n "$arch" && test -n "$target_os" ||
3484         die "Must specify target arch and OS when cross-compiling"
3485 fi
3486
3487 ar_default="${cross_prefix}${ar_default}"
3488 cc_default="${cross_prefix}${cc_default}"
3489 cxx_default="${cross_prefix}${cxx_default}"
3490 nm_default="${cross_prefix}${nm_default}"
3491 pkg_config_default="${cross_prefix}${pkg_config_default}"
3492 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3493     ranlib_default="${cross_prefix}${ranlib_default} -D"
3494 else
3495     ranlib_default="${cross_prefix}${ranlib_default}"
3496 fi
3497 strip_default="${cross_prefix}${strip_default}"
3498 windres_default="${cross_prefix}${windres_default}"
3499
3500 sysinclude_default="${sysroot}/usr/include"
3501
3502 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3503     target_exec target_os yasmexe
3504 enabled cross_compile || host_cc_default=$cc
3505 set_default host_cc
3506
3507 pkg_config_fail_message=""
3508 if ! $pkg_config --version >/dev/null 2>&1; then
3509     warn "$pkg_config not found, library detection may fail."
3510     pkg_config=false
3511 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3512     pkg_config_fail_message="
3513 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3514 fi
3515
3516 if test $doxygen != $doxygen_default && \
3517   ! $doxygen --version >/dev/null 2>&1; then
3518     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3519 fi
3520
3521 exesuf() {
3522     case $1 in
3523         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3524     esac
3525 }
3526
3527 EXESUF=$(exesuf $target_os)
3528 HOSTEXESUF=$(exesuf $host_os)
3529
3530 # set temporary file name
3531 : ${TMPDIR:=$TEMPDIR}
3532 : ${TMPDIR:=$TMP}
3533 : ${TMPDIR:=/tmp}
3534
3535 if [ -n "$tempprefix" ] ; then
3536     mktemp(){
3537         echo $tempprefix.${HOSTNAME}.${UID}
3538     }
3539 elif ! check_cmd mktemp -u XXXXXX; then
3540     # simple replacement for missing mktemp
3541     # NOT SAFE FOR GENERAL USE
3542     mktemp(){
3543         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3544     }
3545 fi
3546
3547 tmpfile(){
3548     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3549         (set -C; exec > $tmp) 2>/dev/null ||
3550         die "Unable to create temporary file in $TMPDIR."
3551     append TMPFILES $tmp
3552     eval $1=$tmp
3553 }
3554
3555 trap 'rm -f -- $TMPFILES' EXIT
3556
3557 tmpfile TMPASM .asm
3558 tmpfile TMPC   .c
3559 tmpfile TMPCPP .cpp
3560 tmpfile TMPE   $EXESUF
3561 tmpfile TMPH   .h
3562 tmpfile TMPM   .m
3563 tmpfile TMPO   .o
3564 tmpfile TMPS   .S
3565 tmpfile TMPSH  .sh
3566 tmpfile TMPV   .ver
3567
3568 unset -f mktemp
3569
3570 chmod +x $TMPE
3571
3572 # make sure we can execute files in $TMPDIR
3573 cat > $TMPSH 2>> $logfile <<EOF
3574 #! /bin/sh
3575 EOF
3576 chmod +x $TMPSH >> $logfile 2>&1
3577 if ! $TMPSH >> $logfile 2>&1; then
3578     cat <<EOF
3579 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3580 variable to another directory and make sure that it is not mounted noexec.
3581 EOF
3582     die "Sanity test failed."
3583 fi
3584
3585 armasm_flags(){
3586     for flag; do
3587         case $flag in
3588             # Filter out MSVC cl.exe options from cflags that shouldn't
3589             # be passed to gas-preprocessor
3590             -M[TD]*)                                            ;;
3591             *)                  echo $flag                      ;;
3592         esac
3593    done
3594 }
3595
3596 ccc_flags(){
3597     for flag; do
3598         case $flag in
3599             -std=c99)           echo -c99                       ;;
3600             -mcpu=*)            echo -arch ${flag#*=}           ;;
3601             -mieee)             echo -ieee                      ;;
3602             -O*|-fast)          echo $flag                      ;;
3603             -fno-math-errno)    echo -assume nomath_errno       ;;
3604             -g)                 echo -g3                        ;;
3605             -Wall)              echo -msg_enable level2         ;;
3606             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3607             -Wl,*)              echo $flag                      ;;
3608             -f*|-W*)                                            ;;
3609             *)                  echo $flag                      ;;
3610         esac
3611    done
3612 }
3613
3614 cparser_flags(){
3615     for flag; do
3616         case $flag in
3617             -Wno-switch)             echo -Wno-switch-enum ;;
3618             -Wno-format-zero-length) ;;
3619             -Wdisabled-optimization) ;;
3620             -Wno-pointer-sign)       echo -Wno-other ;;
3621             *)                       echo $flag ;;
3622         esac
3623     done
3624 }
3625
3626 msvc_common_flags(){
3627     for flag; do
3628         case $flag in
3629             # In addition to specifying certain flags under the compiler
3630             # specific filters, they must be specified here as well or else the
3631             # generic catch all at the bottom will print the original flag.
3632             -Wall)                ;;
3633             -std=c99)             ;;
3634             # Common flags
3635             -fomit-frame-pointer) ;;
3636             -g)                   echo -Z7 ;;
3637             -fno-math-errno)      ;;
3638             -fno-common)          ;;
3639             -fno-signed-zeros)    ;;
3640             -fPIC)                ;;
3641             -mthumb)              ;;
3642             -march=*)             ;;
3643             -lz)                  echo zlib.lib ;;
3644             -lavifil32)           echo vfw32.lib ;;
3645             -lavicap32)           echo vfw32.lib user32.lib ;;
3646             -lx264)               echo libx264.lib ;;
3647             -l*)                  echo ${flag#-l}.lib ;;
3648             -LARGEADDRESSAWARE)   echo $flag ;;
3649             -L*)                  echo -libpath:${flag#-L} ;;
3650             *)                    echo $flag ;;
3651         esac
3652     done
3653 }
3654
3655 msvc_flags(){
3656     msvc_common_flags "$@"
3657     for flag; do
3658         case $flag in
3659             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3660                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3661                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3662                                        -wd4307 \
3663                                        -wd4273 -wd4554 -wd4701 ;;
3664         esac
3665     done
3666 }
3667
3668 icl_flags(){
3669     msvc_common_flags "$@"
3670     for flag; do
3671         case $flag in
3672             # Despite what Intel's documentation says -Wall, which is supported
3673             # on Windows, does enable remarks so disable them here.
3674             -Wall)                echo $flag -Qdiag-disable:remark ;;
3675             -std=c99)             echo -Qstd=c99 ;;
3676             -flto)                echo -ipo ;;
3677         esac
3678     done
3679 }
3680
3681 icc_flags(){
3682     for flag; do
3683         case $flag in
3684             -flto)                echo -ipo ;;
3685             *)                    echo $flag ;;
3686         esac
3687     done
3688 }
3689
3690 pgi_flags(){
3691     for flag; do
3692         case $flag in
3693             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3694             -fomit-frame-pointer) echo -Mnoframe ;;
3695             -g)                   echo -gopt ;;
3696             *)                    echo $flag ;;
3697         esac
3698     done
3699 }
3700
3701 suncc_flags(){
3702     for flag; do
3703         case $flag in
3704             -march=*|-mcpu=*)
3705                 case "${flag#*=}" in
3706                     native)                   echo -xtarget=native       ;;
3707                     v9|niagara)               echo -xarch=sparc          ;;
3708                     ultrasparc)               echo -xarch=sparcvis       ;;
3709                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3710                     i586|pentium)             echo -xchip=pentium        ;;
3711                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3712                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3713                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3714                     pentium4*)          echo -xtarget=pentium4           ;;
3715                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3716                     *-sse3)             echo -xarch=sse3                 ;;
3717                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3718                     bonnell)                   echo -xarch=ssse3         ;;
3719                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3720                     westmere)                  echo -xtarget=westmere    ;;
3721                     silvermont)                echo -xarch=sse4_2        ;;
3722                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3723                     core-avx*|ivybridge|haswell|broadwell)
3724                                                echo -xarch=avx           ;;
3725                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3726                     btver1)                    echo -xarch=amdsse4a      ;;
3727                     btver2|bdver*)             echo -xarch=avx           ;;
3728                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3729                     k8|opteron|athlon64|athlon-fx)
3730                                                echo -xarch=sse2a         ;;
3731                     athlon*)                   echo -xarch=pentium_proa  ;;
3732                 esac
3733                 ;;
3734             -std=c99)             echo -xc99              ;;
3735             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3736             -fPIC)                echo -KPIC -xcode=pic32 ;;
3737             -W*,*)                echo $flag              ;;
3738             -f*-*|-W*|-mimpure-text)                      ;;
3739             -shared)              echo -G                 ;;
3740             *)                    echo $flag              ;;
3741         esac
3742     done
3743 }
3744
3745 tms470_flags(){
3746     for flag; do
3747         case $flag in
3748             -march=*|-mcpu=*)
3749                 case "${flag#*=}" in
3750                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3751                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3752                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3753                     armv6*|arm11*)          echo -mv=6   ;;
3754                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3755                                             echo -mv=5e  ;;
3756                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3757                 esac
3758                 ;;
3759             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3760             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3761             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3762             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3763             -msoft-float)   echo --float_support=vfplib       ;;
3764             -O[0-3]|-mf=*)  echo $flag                        ;;
3765             -g)             echo -g -mn                       ;;
3766             -pds=*)         echo $flag                        ;;
3767             -D*|-I*)        echo $flag                        ;;
3768             --gcc|--abi=*)  echo $flag                        ;;
3769             -me)            echo $flag                        ;;
3770         esac
3771     done
3772 }
3773
3774 probe_cc(){
3775     pfx=$1
3776     _cc=$2
3777     first=$3
3778
3779     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3780     unset _ld_o _ldflags _ld_lib _ld_path
3781     unset _depflags _DEPCMD _DEPFLAGS
3782     _flags_filter=echo
3783
3784     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3785         true # no-op to avoid reading stdin in following checks
3786     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3787         _type=llvm_gcc
3788         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3789         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3790         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3791         _cflags_speed='-O3'
3792         _cflags_size='-Os'
3793     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3794         _type=gcc
3795         gcc_version=$($_cc --version | head -n1)
3796         gcc_basever=$($_cc -dumpversion)
3797         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3798         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3799         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3800         case $gcc_basever in
3801             2) ;;
3802             2.*) ;;
3803             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3804         esac
3805         if [ "$first" = true ]; then
3806             case $gcc_basever in
3807                 4.2*)
3808                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3809             esac
3810         fi
3811         _cflags_speed='-O3'
3812         _cflags_size='-Os'
3813     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3814         _type=icc
3815         _ident=$($_cc --version | head -n1)
3816         _depflags='-MMD'
3817         _cflags_speed='-O3'
3818         _cflags_size='-Os'
3819         _cflags_noopt='-O1'
3820         _flags_filter=icc_flags
3821     elif $_cc -v 2>&1 | grep -q xlc; then
3822         _type=xlc
3823         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3824         _cflags_speed='-O5'
3825         _cflags_size='-O5 -qcompact'
3826     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3827         _type=ccc
3828         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3829         _DEPFLAGS='-M'
3830         _cflags_speed='-fast'
3831         _cflags_size='-O1'
3832         _flags_filter=ccc_flags
3833     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3834         test -d "$sysroot" || die "No valid sysroot specified."
3835         _type=armcc
3836         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3837         armcc_conf="$PWD/armcc.conf"
3838         $_cc --arm_linux_configure                 \
3839              --arm_linux_config_file="$armcc_conf" \
3840              --configure_sysroot="$sysroot"        \
3841              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3842              die "Error creating armcc configuration file."
3843         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3844         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3845         as_default="${cross_prefix}gcc"
3846         _depflags='-MMD'
3847         _cflags_speed='-O3'
3848         _cflags_size='-Os'
3849     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3850         _type=tms470
3851         _ident=$($_cc -version | head -n1 | tr -s ' ')
3852         _flags='--gcc --abi=eabi -me'
3853         _cc_e='-ppl -fe=$@'
3854         _cc_o='-fe=$@'
3855         _depflags='-ppa -ppd=$(@:.o=.d)'
3856         _cflags_speed='-O3 -mf=5'
3857         _cflags_size='-O3 -mf=2'
3858         _flags_filter=tms470_flags
3859     elif $_cc -v 2>&1 | grep -q clang; then
3860         _type=clang
3861         _ident=$($_cc --version 2>/dev/null | head -n1)
3862         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3863         _cflags_speed='-O3'
3864         _cflags_size='-Os'
3865     elif $_cc -V 2>&1 | grep -q Sun; then
3866         _type=suncc
3867         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3868         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3869         _DEPFLAGS='-xM1 -xc99'
3870         _ldflags='-std=c99'
3871         _cflags_speed='-O5'
3872         _cflags_size='-O5 -xspace'
3873         _flags_filter=suncc_flags
3874     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3875         _type=pathscale
3876         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3877         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3878         _cflags_speed='-O2'
3879         _cflags_size='-Os'
3880         _flags_filter='filter_out -Wdisabled-optimization'
3881     elif $_cc -v 2>&1 | grep -q Open64; then
3882         _type=open64
3883         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3884         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3885         _cflags_speed='-O2'
3886         _cflags_size='-Os'
3887         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3888     elif $_cc -V 2>&1 | grep -q Portland; then
3889         _type=pgi
3890         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3891         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3892         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3893         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3894         _cflags_noopt="-O"
3895         _flags_filter=pgi_flags
3896     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3897         _type=armasm
3898         _ident=$($_cc | head -n1)
3899         # 4509: "This form of conditional instruction is deprecated"
3900         _flags="-nologo -ignore 4509"
3901         _flags_filter=armasm_flags
3902     elif $_cc 2>&1 | grep -q Intel; then
3903         _type=icl
3904         _ident=$($_cc 2>&1 | head -n1)
3905         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3906         # Not only is O3 broken on 13.x+ but it is slower on all previous
3907         # versions (tested) as well.
3908         _cflags_speed="-O2"
3909         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3910         if $_cc 2>&1 | grep -q Linker; then
3911             _ld_o='-out:$@'
3912         else
3913             _ld_o='-Fe$@'
3914         fi
3915         _cc_o='-Fo$@'
3916         _cc_e='-P'
3917         _flags_filter=icl_flags
3918         _ld_lib='lib%.a'
3919         _ld_path='-libpath:'
3920         # -Qdiag-error to make icl error when seeing certain unknown arguments
3921         _flags='-nologo -Qdiag-error:4044,10157'
3922         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3923         # with MSVC which enables it by default.
3924         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3925         disable stripping
3926     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3927         _type=msvc
3928         _ident=$($_cc 2>&1 | head -n1)
3929         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3930         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3931         _cflags_speed="-O2"
3932         _cflags_size="-O1"
3933         if $_cc -nologo- 2>&1 | grep -q Linker; then
3934             _ld_o='-out:$@'
3935         else
3936             _ld_o='-Fe$@'
3937         fi
3938         _cc_o='-Fo$@'
3939         _cc_e='-P -Fi$@'
3940         _flags_filter=msvc_flags
3941         _ld_lib='lib%.a'
3942         _ld_path='-libpath:'
3943         _flags='-nologo'
3944         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3945         disable stripping
3946     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3947         _type=cparser
3948         _ident=$($_cc --version | head -n1)
3949         _depflags='-MMD'
3950         _cflags_speed='-O4'
3951         _cflags_size='-O2'
3952         _flags_filter=cparser_flags
3953     fi
3954
3955     eval ${pfx}_type=\$_type
3956     eval ${pfx}_ident=\$_ident
3957 }
3958
3959 set_ccvars(){
3960     eval ${1}_C=\${_cc_c-\${${1}_C}}
3961     eval ${1}_E=\${_cc_e-\${${1}_E}}
3962     eval ${1}_O=\${_cc_o-\${${1}_O}}
3963
3964     if [ -n "$_depflags" ]; then
3965         eval ${1}_DEPFLAGS=\$_depflags
3966     else
3967         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3968         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3969         eval DEP${1}FLAGS=\$_flags
3970     fi
3971 }
3972
3973 probe_cc cc "$cc" "true"
3974 cflags_filter=$_flags_filter
3975 cflags_speed=$_cflags_speed
3976 cflags_size=$_cflags_size
3977 cflags_noopt=$_cflags_noopt
3978 add_cflags $_flags $_cflags
3979 cc_ldflags=$_ldflags
3980 set_ccvars CC
3981
3982 probe_cc hostcc "$host_cc"
3983 host_cflags_filter=$_flags_filter
3984 add_host_cflags  $_flags $_cflags
3985 set_ccvars HOSTCC
3986
3987 test -n "$cc_type" && enable $cc_type ||
3988     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3989
3990 : ${as_default:=$cc}
3991 : ${objcc_default:=$cc}
3992 : ${dep_cc_default:=$cc}
3993 : ${ld_default:=$cc}
3994 : ${host_ld_default:=$host_cc}
3995 set_default ar as objcc dep_cc ld host_ld windres
3996
3997 probe_cc as "$as"
3998 asflags_filter=$_flags_filter
3999 add_asflags $_flags $_cflags
4000 set_ccvars AS
4001
4002 probe_cc objcc "$objcc"
4003 objcflags_filter=$_flags_filter
4004 add_objcflags $_flags $_cflags
4005 set_ccvars OBJC
4006
4007 probe_cc ld "$ld"
4008 ldflags_filter=$_flags_filter
4009 add_ldflags $_flags $_ldflags
4010 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4011 LD_O=${_ld_o-$LD_O}
4012 LD_LIB=${_ld_lib-$LD_LIB}
4013 LD_PATH=${_ld_path-$LD_PATH}
4014
4015 probe_cc hostld "$host_ld"
4016 host_ldflags_filter=$_flags_filter
4017 add_host_ldflags $_flags $_ldflags
4018 HOSTLD_O=${_ld_o-$HOSTLD_O}
4019
4020 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4021     probe_cc depcc "$dep_cc"
4022     CCDEP=${_DEPCMD:-$DEPCMD}
4023     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4024     DEPCCFLAGS=$_flags
4025 fi
4026
4027 if $ar 2>&1 | grep -q Microsoft; then
4028     arflags="-nologo"
4029     ar_o='-out:$@'
4030 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4031     arflags="rq"
4032     ar_o='$@'
4033 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4034     arflags='-Xany -r -c'
4035     ar_o='$@'
4036 elif $ar 2>&1 | grep -q "\[D\] "; then
4037     arflags="rcD"
4038     ar_o='$@'
4039 else
4040     arflags="rc"
4041     ar_o='$@'
4042 fi
4043
4044 add_cflags $extra_cflags
4045 add_cxxflags $extra_cxxflags
4046 add_objcflags $extra_objcflags
4047 add_asflags $extra_cflags
4048
4049 if test -n "$sysroot"; then
4050     case "$cc_type" in
4051         gcc|llvm_gcc|clang)
4052             add_cppflags --sysroot="$sysroot"
4053             add_ldflags --sysroot="$sysroot"
4054 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4055             add_cppflags -isysroot "$sysroot"
4056             add_ldflags -isysroot "$sysroot"
4057         ;;
4058         tms470)
4059             add_cppflags -I"$sysinclude"
4060             add_ldflags  --sysroot="$sysroot"
4061         ;;
4062     esac
4063 fi
4064
4065 if test "$cpu" = host; then
4066     enabled cross_compile &&
4067         die "--cpu=host makes no sense when cross-compiling."
4068
4069     case "$cc_type" in
4070         gcc|llvm_gcc)
4071             check_native(){
4072                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4073                 sed -n "/cc1.*$1=/{
4074                             s/.*$1=\\([^ ]*\\).*/\\1/
4075                             p
4076                             q
4077                         }" $TMPE
4078             }
4079             cpu=$(check_native -march || check_native -mcpu)
4080         ;;
4081         clang)
4082             check_native(){
4083                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4084                 sed -n "/cc1.*-target-cpu /{
4085                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4086                             p
4087                             q
4088                         }" $TMPE
4089             }
4090             cpu=$(check_native -march)
4091         ;;
4092     esac
4093
4094     test "${cpu:-host}" = host &&
4095         die "--cpu=host not supported with compiler $cc"
4096 fi
4097
4098 # Deal with common $arch aliases
4099 case "$arch" in
4100     aarch64|arm64)
4101         arch="aarch64"
4102     ;;
4103     arm*|iPad*|iPhone*)
4104         arch="arm"
4105     ;;
4106     mips*|IP*)
4107         case "$arch" in
4108         *el)
4109             add_cppflags -EL
4110             add_ldflags -EL
4111         ;;
4112         *eb)
4113             add_cppflags -EB
4114             add_ldflags -EB
4115         ;;
4116         esac
4117         arch="mips"
4118     ;;
4119     parisc*|hppa*)
4120         arch="parisc"
4121     ;;
4122     "Power Macintosh"|ppc*|powerpc*)
4123         arch="ppc"
4124     ;;
4125     s390|s390x)
4126         arch="s390"
4127     ;;
4128     sh4|sh)
4129         arch="sh4"
4130     ;;
4131     sun4u|sparc*)
4132         arch="sparc"
4133     ;;
4134     tilegx|tile-gx)
4135         arch="tilegx"
4136     ;;
4137     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4138         arch="x86"
4139     ;;
4140 esac
4141
4142 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4143 enable $arch
4144
4145 # Add processor-specific flags
4146 if enabled aarch64; then
4147
4148     case $cpu in
4149         armv*)
4150             cpuflags="-march=$cpu"
4151         ;;
4152         *)
4153             cpuflags="-mcpu=$cpu"
4154         ;;
4155     esac
4156
4157 elif enabled alpha; then
4158
4159     cpuflags="-mcpu=$cpu"
4160
4161 elif enabled arm; then
4162
4163     check_arm_arch() {
4164         check_cpp_condition stddef.h \
4165             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4166             $cpuflags
4167     }
4168
4169     probe_arm_arch() {
4170         if   check_arm_arch 4;        then echo armv4;
4171         elif check_arm_arch 4T;       then echo armv4t;
4172         elif check_arm_arch 5;        then echo armv5;
4173         elif check_arm_arch 5E;       then echo armv5e;
4174         elif check_arm_arch 5T;       then echo armv5t;
4175         elif check_arm_arch 5TE;      then echo armv5te;
4176         elif check_arm_arch 5TEJ;     then echo armv5te;
4177         elif check_arm_arch 6;        then echo armv6;
4178         elif check_arm_arch 6J;       then echo armv6j;
4179         elif check_arm_arch 6K;       then echo armv6k;
4180         elif check_arm_arch 6Z;       then echo armv6z;
4181         elif check_arm_arch 6ZK;      then echo armv6zk;
4182         elif check_arm_arch 6T2;      then echo armv6t2;
4183         elif check_arm_arch 7;        then echo armv7;
4184         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4185         elif check_arm_arch 7S;       then echo armv7-a;
4186         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4187         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4188         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4189         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4190         fi
4191     }
4192
4193     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4194
4195     case $cpu in
4196         armv*)
4197             cpuflags="-march=$cpu"
4198             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4199         ;;
4200         *)
4201             cpuflags="-mcpu=$cpu"
4202             case $cpu in
4203                 cortex-a*)                               subarch=armv7a  ;;
4204                 cortex-r*)                               subarch=armv7r  ;;
4205                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4206                 arm11*)                                  subarch=armv6   ;;
4207                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4208                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4209                 *)                             subarch=$(probe_arm_arch) ;;
4210             esac
4211         ;;
4212     esac
4213
4214     case "$subarch" in
4215         armv5t*)    enable fast_clz                ;;
4216         armv[6-8]*)
4217             enable fast_clz
4218             disabled fast_unaligned || enable fast_unaligned
4219             ;;
4220     esac
4221
4222 elif enabled avr32; then
4223
4224     case $cpu in
4225         ap7[02]0[0-2])
4226             subarch="avr32_ap"
4227             cpuflags="-mpart=$cpu"
4228         ;;
4229         ap)
4230             subarch="avr32_ap"
4231             cpuflags="-march=$cpu"
4232         ;;
4233         uc3[ab]*)
4234             subarch="avr32_uc"
4235             cpuflags="-mcpu=$cpu"
4236         ;;
4237         uc)
4238             subarch="avr32_uc"
4239             cpuflags="-march=$cpu"
4240         ;;
4241     esac
4242
4243 elif enabled bfin; then
4244
4245     cpuflags="-mcpu=$cpu"
4246
4247 elif enabled mips; then
4248
4249     cpuflags="-march=$cpu"
4250
4251     if [ "$cpu" != "generic" ]; then
4252         disable mips32r2
4253         disable mips32r5
4254         disable mips64r2
4255         disable mips32r6
4256         disable mips64r6
4257         disable loongson2
4258         disable loongson3
4259
4260         case $cpu in
4261             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4262                 enable mips32r2
4263                 disable msa
4264             ;;
4265             p5600|i6400)
4266                 disable mipsdsp
4267                 disable mipsdspr2
4268             ;;
4269             loongson*)
4270                 enable loongson2
4271                 enable loongson3
4272                 enable local_aligned_8 local_aligned_16 local_aligned_32
4273                 enable simd_align_16
4274                 enable fast_64bit
4275                 enable fast_clz
4276                 enable fast_cmov
4277                 enable fast_unaligned
4278                 disable aligned_stack
4279                 case $cpu in
4280                     loongson3*)
4281                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4282                     ;;
4283                     loongson2e)
4284                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4285                     ;;
4286                     loongson2f)
4287                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4288                     ;;
4289                 esac
4290             ;;
4291             *)
4292                 # Unknown CPU. Disable everything.
4293                 warn "unknown CPU. Disabling all MIPS optimizations."
4294                 disable mipsfpu
4295                 disable mipsdsp
4296                 disable mipsdspr2
4297                 disable msa
4298                 disable mmi
4299             ;;
4300         esac
4301
4302         case $cpu in
4303             24kc)
4304                 disable mipsfpu
4305                 disable mipsdsp
4306                 disable mipsdspr2
4307             ;;
4308             24kf*)
4309                 disable mipsdsp
4310                 disable mipsdspr2
4311             ;;
4312             24kec|34kc|1004kc)
4313                 disable mipsfpu
4314                 disable mipsdspr2
4315             ;;
4316             24kef*|34kf*|1004kf*)
4317                 disable mipsdspr2
4318             ;;
4319             74kc)
4320                 disable mipsfpu
4321             ;;
4322             p5600)
4323                 enable mips32r5
4324                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4325             ;;
4326             i6400)
4327                 enable mips64r6
4328                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4329             ;;
4330         esac
4331     else
4332         # We do not disable anything. Is up to the user to disable the unwanted features.
4333         warn 'generic cpu selected'
4334     fi
4335
4336 elif enabled ppc; then
4337
4338     disable ldbrx
4339
4340     case $(tolower $cpu) in
4341         601|ppc601|powerpc601)
4342             cpuflags="-mcpu=601"
4343             disable altivec
4344         ;;
4345         603*|ppc603*|powerpc603*)
4346             cpuflags="-mcpu=603"
4347             disable altivec
4348         ;;
4349         604*|ppc604*|powerpc604*)
4350             cpuflags="-mcpu=604"
4351             disable altivec
4352         ;;
4353         g3|75*|ppc75*|powerpc75*)
4354             cpuflags="-mcpu=750"
4355             disable altivec
4356         ;;
4357         g4|745*|ppc745*|powerpc745*)
4358             cpuflags="-mcpu=7450"
4359             disable vsx
4360         ;;
4361         74*|ppc74*|powerpc74*)
4362             cpuflags="-mcpu=7400"
4363             disable vsx
4364         ;;
4365         g5|970|ppc970|powerpc970)
4366             cpuflags="-mcpu=970"
4367             disable vsx
4368         ;;
4369         power[3-6]*)
4370             cpuflags="-mcpu=$cpu"
4371             disable vsx
4372         ;;
4373         power[7-8]*)
4374             cpuflags="-mcpu=$cpu"
4375         ;;
4376         cell)
4377             cpuflags="-mcpu=cell"
4378             enable ldbrx
4379             disable vsx
4380         ;;
4381         e500mc)
4382             cpuflags="-mcpu=e500mc"
4383             disable altivec
4384         ;;
4385         e500v2)
4386             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4387             disable altivec
4388             disable dcbzl
4389         ;;
4390         e500)
4391             cpuflags="-mcpu=8540 -mhard-float"
4392             disable altivec
4393             disable dcbzl
4394         ;;
4395     esac
4396
4397 elif enabled sparc; then
4398
4399     case $cpu in
4400         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4401             cpuflags="-mcpu=$cpu"
4402         ;;
4403         ultrasparc*|niagara[234])
4404             cpuflags="-mcpu=$cpu"
4405         ;;
4406     esac
4407
4408 elif enabled x86; then
4409
4410     case $cpu in
4411         i[345]86|pentium)
4412             cpuflags="-march=$cpu"
4413             disable i686
4414             disable mmx
4415         ;;
4416         # targets that do NOT support nopl and conditional mov (cmov)
4417         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4418             cpuflags="-march=$cpu"
4419             disable i686
4420         ;;
4421         # targets that do support nopl and conditional mov (cmov)
4422         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4423         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4424             cpuflags="-march=$cpu"
4425             enable i686
4426             enable fast_cmov
4427         ;;
4428         # targets that do support conditional mov but on which it's slow
4429         pentium4|pentium4m|prescott|nocona)
4430             cpuflags="-march=$cpu"
4431             enable i686
4432             disable fast_cmov
4433         ;;
4434     esac
4435
4436 fi
4437
4438 if [ "$cpu" != generic ]; then
4439     add_cflags  $cpuflags
4440     add_asflags $cpuflags
4441     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4442 fi
4443
4444 # compiler sanity check
4445 check_exec <<EOF
4446 int main(void){ return 0; }
4447 EOF
4448 if test "$?" != 0; then
4449     echo "$cc is unable to create an executable file."
4450     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4451         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4452         echo "Only do this if you know what cross compiling means."
4453     fi
4454     die "C compiler test failed."
4455 fi
4456
4457 add_cppflags -D_ISOC99_SOURCE
4458 add_cxxflags -D__STDC_CONSTANT_MACROS
4459 check_cflags -std=c99
4460 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4461 #include <stdlib.h>
4462 EOF
4463 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4464 #include <stdlib.h>
4465 EOF
4466
4467 add_host_cppflags -D_ISOC99_SOURCE
4468 check_host_cflags -std=c99
4469 check_host_cflags -Wall
4470 check_host_cflags -O3
4471
4472 check_64bit(){
4473     arch32=$1
4474     arch64=$2
4475     expr=$3
4476     check_code cc "" "int test[2*($expr) - 1]" &&
4477         subarch=$arch64 || subarch=$arch32
4478 }
4479
4480 case "$arch" in
4481     aarch64|alpha|ia64)
4482         spic=$shared
4483     ;;
4484     mips)
4485         check_64bit mips mips64 '_MIPS_SIM > 1'
4486         spic=$shared
4487     ;;
4488     parisc)
4489         check_64bit parisc parisc64 'sizeof(void *) > 4'
4490         spic=$shared
4491     ;;
4492     ppc)
4493         check_64bit ppc ppc64 'sizeof(void *) > 4'
4494         spic=$shared
4495     ;;
4496     s390)
4497         check_64bit s390 s390x 'sizeof(void *) > 4'
4498         spic=$shared
4499     ;;
4500     sparc)
4501         check_64bit sparc sparc64 'sizeof(void *) > 4'
4502         spic=$shared
4503     ;;
4504     x86)
4505         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4506         # Treat x32 as x64 for now. Note it also needs spic=$shared
4507         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4508             subarch=x86_64
4509         if test "$subarch" = "x86_64"; then
4510             spic=$shared
4511         fi
4512     ;;
4513     ppc)
4514         check_cc <<EOF && subarch="ppc64"
4515         int test[(int)sizeof(char*) - 7];
4516 EOF
4517     ;;
4518 esac
4519
4520 enable $subarch
4521 enabled spic && enable_weak pic
4522
4523 # OS specific
4524 case $target_os in
4525     aix)
4526         SHFLAGS=-shared
4527         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4528         enabled shared && add_ldflags -Wl,-brtl
4529         ;;
4530     android)
4531         disable symver
4532         enable section_data_rel_ro
4533         SLIB_INSTALL_NAME='$(SLIBNAME)'
4534         SLIB_INSTALL_LINKS=
4535         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4536         ;;
4537     haiku)
4538         prefix_default="/boot/common"
4539         network_extralibs="-lnetwork"
4540         host_libs=
4541         ;;
4542     sunos)
4543         SHFLAGS='-shared -Wl,-h,$$(@F)'
4544         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4545         network_extralibs="-lsocket -lnsl"
4546         add_cppflags -D__EXTENSIONS__
4547         # When using suncc to build, the Solaris linker will mark
4548         # an executable with each instruction set encountered by
4549         # the Solaris assembler.  As our libraries contain their own
4550         # guards for processor-specific code, instead suppress
4551         # generation of the HWCAPS ELF section on Solaris x86 only.
4552         enabled_all suncc x86 &&
4553             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4554             add_ldflags -Wl,-M,mapfile
4555         nm_default='nm -P -g'
4556         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4557         ;;
4558     netbsd)
4559         disable symver
4560         oss_indev_extralibs="-lossaudio"
4561         oss_outdev_extralibs="-lossaudio"
4562         enabled gcc || check_ldflags -Wl,-zmuldefs
4563         ;;
4564     openbsd|bitrig)
4565         disable symver
4566         SHFLAGS='-shared'
4567         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4568         SLIB_INSTALL_LINKS=
4569         oss_indev_extralibs="-lossaudio"
4570         oss_outdev_extralibs="-lossaudio"
4571         ;;
4572     dragonfly)
4573         disable symver
4574         ;;
4575     freebsd)
4576         ;;
4577     bsd/os)
4578         add_extralibs -lpoll -lgnugetopt
4579         strip="strip -d"
4580         ;;
4581     darwin)
4582         enabled ppc && add_asflags -force_cpusubtype_ALL
4583         install_name_dir_default='$(SHLIBDIR)'
4584         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4585         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4586         strip="${strip} -x"
4587         add_ldflags -Wl,-dynamic,-search_paths_first
4588         SLIBSUF=".dylib"
4589         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4590         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4591         objformat="macho"
4592         enabled x86_64 && objformat="macho64"
4593         enabled_any pic shared x86_64 ||
4594             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4595         check_header dispatch/dispatch.h
4596         ;;
4597     msys*)
4598         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4599         ;;
4600     mingw32*|mingw64*)
4601         if test $target_os = "mingw32ce"; then
4602             disable network
4603         else
4604             target_os=mingw32
4605         fi
4606         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4607         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4608         LIBTARGET=i386
4609         if enabled x86_64; then
4610             LIBTARGET="i386:x86-64"
4611         elif enabled arm; then
4612             LIBTARGET=arm-wince
4613         fi
4614         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4615         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4616         shlibdir_default="$bindir_default"
4617         SLIBPREF=""
4618         SLIBSUF=".dll"
4619         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4620         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4621         dlltool="${cross_prefix}dlltool"
4622         if check_cmd lib.exe -list; then
4623             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4624             if enabled x86_64; then
4625                 LIBTARGET=x64
4626             fi
4627         elif check_cmd $dlltool --version; then
4628             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4629         fi
4630         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4631         SLIB_INSTALL_LINKS=
4632         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4633         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4634         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4635         objformat="win32"
4636         ranlib=:
4637         enable dos_paths
4638         check_ldflags -Wl,--nxcompat,--dynamicbase
4639         # Lets work around some stupidity in binutils.
4640         # ld will strip relocations from executables even though we need them
4641         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4642         # however ld then forgets what the entry point should be (oops) so we
4643         # have to manually (re)set it.
4644         if enabled x86_32; then
4645             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4646         elif enabled x86_64; then
4647             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4648             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4649             # Set image base >4GB for extra entropy with HEASLR
4650             add_ldexeflags -Wl,--image-base,0x140000000
4651             append SHFLAGS -Wl,--image-base,0x180000000
4652         fi
4653         ;;
4654     win32|win64)
4655         disable symver
4656         if enabled shared; then
4657             # Link to the import library instead of the normal static library
4658             # for shared libs.
4659             LD_LIB='%.lib'
4660             # Cannot build both shared and static libs with MSVC or icl.
4661             disable static
4662         fi
4663         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4664         shlibdir_default="$bindir_default"
4665         SLIBPREF=""
4666         SLIBSUF=".dll"
4667         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4668         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4669         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4670         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4671         SLIB_INSTALL_LINKS=
4672         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4673         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4674         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4675         objformat="win32"
4676         ranlib=:
4677         enable dos_paths
4678         ;;
4679     cygwin*)
4680         target_os=cygwin
4681         shlibdir_default="$bindir_default"
4682         SLIBPREF="cyg"
4683         SLIBSUF=".dll"
4684         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4685         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4686         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4687         SLIB_INSTALL_LINKS=
4688         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4689         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4690         objformat="win32"
4691         enable dos_paths
4692         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4693         ;;
4694     *-dos|freedos|opendos)
4695         network_extralibs="-lsocket"
4696         objformat="coff"
4697         enable dos_paths
4698         add_cppflags -U__STRICT_ANSI__
4699         ;;
4700     linux)
4701         enable dv1394
4702         enable section_data_rel_ro
4703         ;;
4704     irix*)
4705         target_os=irix
4706         ranlib="echo ignoring ranlib"
4707         ;;
4708     os/2*)
4709         strip="lxlite -CS"
4710         ln_s="cp -f"
4711         objformat="aout"
4712         add_cppflags -D_GNU_SOURCE
4713         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4714         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4715         LIBSUF="_s.a"
4716         SLIBPREF=""
4717         SLIBSUF=".dll"
4718         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4719         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4720         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4721             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4722             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4723             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4724             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4725         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4726             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4727         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4728         enable dos_paths
4729         enable_weak os2threads
4730         ;;
4731     gnu/kfreebsd)
4732         add_cppflags -D_BSD_SOURCE
4733         ;;
4734     gnu)
4735         ;;
4736     qnx)
4737         add_cppflags -D_QNX_SOURCE
4738         network_extralibs="-lsocket"
4739         ;;
4740     symbian)
4741         SLIBSUF=".dll"
4742         enable dos_paths
4743         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4744         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4745         add_ldflags -Wl,--target1-abs,--no-undefined \
4746                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4747                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4748         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4749                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4750                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4751         ;;
4752     osf1)
4753         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4754         ;;
4755     minix)
4756         ;;
4757     plan9)
4758         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4759                      -D_REENTRANT_SOURCE        \
4760                      -D_RESEARCH_SOURCE         \
4761                      -DFD_SETSIZE=96            \
4762                      -DHAVE_SOCK_OPTS
4763         add_compat strtod.o strtod=avpriv_strtod
4764         network_extralibs='-lbsd'
4765         exeobjs=compat/plan9/main.o
4766         disable ffserver
4767         cp_f='cp'
4768         ;;
4769     none)
4770         ;;
4771     *)
4772         die "Unknown OS '$target_os'."
4773         ;;
4774 esac
4775
4776 # test if creating links works
4777 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4778 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4779 mkdir "$link_dest"
4780 $ln_s "$link_dest" "$link_name"
4781 touch "$link_dest/test_file"
4782 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4783     # create link to source path
4784     [ -e src ] && rm src
4785     $ln_s "$source_path" src
4786     source_link=src
4787 else
4788     # creating directory links doesn't work
4789     # fall back to using the full source path
4790     source_link="$source_path"
4791 fi
4792 # cleanup
4793 rm -r "$link_dest"
4794 rm -r "$link_name"
4795
4796 # determine libc flavour
4797
4798 probe_libc(){
4799     pfx=$1
4800     pfx_no_=${pfx%_}
4801     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4802     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4803         eval ${pfx}libc_type=uclibc
4804         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4805     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4806         eval ${pfx}libc_type=glibc
4807         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4808     # MinGW headers can be installed on Cygwin, so check for newlib first.
4809     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4810         eval ${pfx}libc_type=newlib
4811         add_${pfx}cppflags -U__STRICT_ANSI__
4812     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4813     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4814         eval ${pfx}libc_type=mingw64
4815         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4816             add_compat msvcrt/snprintf.o
4817             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4818         fi
4819         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4820         eval test \$${pfx_no_}cc_type = "gcc" &&
4821             add_${pfx}cppflags -D__printf__=__gnu_printf__
4822     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4823          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4824         eval ${pfx}libc_type=mingw32
4825         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4826             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4827             die "ERROR: MinGW32 runtime version must be >= 3.15."
4828         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4829         eval test \$${pfx_no_}cc_type = "gcc" &&
4830             add_${pfx}cppflags -D__printf__=__gnu_printf__
4831     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4832         eval ${pfx}libc_type=msvcrt
4833         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4834             if [ "$pfx" = host_ ]; then
4835                 add_host_cppflags -Dsnprintf=_snprintf
4836             else
4837                 add_compat strtod.o strtod=avpriv_strtod
4838                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4839                                              _snprintf=avpriv_snprintf  \
4840                                              vsnprintf=avpriv_vsnprintf
4841             fi
4842         fi
4843         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4844         # 0x601 by default unless something else is set by the user.
4845         # This can easily lead to us detecting functions only present
4846         # in such new versions and producing binaries requiring windows 7.0.
4847         # Therefore explicitly set the default to XP unless the user has
4848         # set something else on the command line.
4849         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4850         # family. For these cases, configure is free to use any functions
4851         # found in the SDK headers by default. (Alternatively, we could force
4852         # _WIN32_WINNT to 0x0602 in that case.)
4853         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4854             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4855 #ifdef WINAPI_FAMILY
4856 #include <winapifamily.h>
4857 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4858 #error not desktop
4859 #endif
4860 #endif
4861 EOF
4862     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4863         eval ${pfx}libc_type=klibc
4864     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4865         eval ${pfx}libc_type=bionic
4866     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4867         eval ${pfx}libc_type=solaris
4868         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4869     fi
4870     check_${pfx}cc <<EOF
4871 #include <time.h>
4872 void *v = localtime_r;
4873 EOF
4874 test "$?" != 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
4875 #include <time.h>
4876 void *v = localtime_r;
4877 EOF
4878
4879 }
4880
4881 probe_libc
4882 test -n "$libc_type" && enable libc_$libc_type
4883 probe_libc host_
4884 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4885
4886 case $libc_type in
4887     bionic)
4888         add_compat strtod.o strtod=avpriv_strtod
4889         ;;
4890 esac
4891
4892 # hacks for compiler/libc/os combinations
4893
4894 if enabled_all tms470 libc_glibc; then
4895     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4896     add_cppflags -D__USER_LABEL_PREFIX__=
4897     add_cppflags -D__builtin_memset=memset
4898     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4899     add_cflags   -pds=48    # incompatible redefinition of macro
4900 fi
4901
4902 if enabled_all ccc libc_glibc; then
4903     add_ldflags -Wl,-z,now  # calls to libots crash without this
4904 fi
4905
4906 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4907     add_cppflags '-I\$(SRC_PATH)/compat/float'
4908
4909 esc(){
4910     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4911 }
4912
4913 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4914
4915 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4916
4917 set_default libdir
4918 : ${shlibdir_default:="$libdir"}
4919 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4920
4921 set_default $PATHS_LIST
4922 set_default nm
4923
4924 # we need to build at least one lib type
4925 if ! enabled_any static shared; then
4926     cat <<EOF
4927 At least one library type must be built.
4928 Specify --enable-static to build the static libraries or --enable-shared to
4929 build the shared libraries as well. To only build the shared libraries specify
4930 --disable-static in addition to --enable-shared.
4931 EOF
4932     exit 1;
4933 fi
4934
4935 die_license_disabled() {
4936     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4937 }
4938
4939 die_license_disabled_gpl() {
4940     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4941 }
4942
4943 die_license_disabled gpl frei0r
4944 die_license_disabled gpl libcdio
4945 die_license_disabled gpl librubberband
4946 die_license_disabled gpl libsmbclient
4947 die_license_disabled gpl libutvideo
4948 die_license_disabled gpl libvidstab
4949 die_license_disabled gpl libx264
4950 die_license_disabled gpl libx265
4951 die_license_disabled gpl libxavs
4952 die_license_disabled gpl libxvid
4953 die_license_disabled gpl x11grab
4954
4955 die_license_disabled nonfree cuda
4956 die_license_disabled nonfree libfaac
4957 die_license_disabled nonfree nvenc
4958 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4959 enabled gpl && die_license_disabled_gpl nonfree openssl
4960
4961 die_license_disabled version3 gmp
4962 die_license_disabled version3 libopencore_amrnb
4963 die_license_disabled version3 libopencore_amrwb
4964 die_license_disabled version3 libsmbclient
4965 die_license_disabled version3 libvo_amrwbenc
4966
4967 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4968
4969 disabled optimizations || check_cflags -fomit-frame-pointer
4970
4971 enable_weak_pic() {
4972     disabled pic && return
4973     enable pic
4974     add_cppflags -DPIC
4975     case "$target_os" in
4976     mingw*|cygwin*)
4977         ;;
4978     *)
4979         add_cflags -fPIC
4980         ;;
4981     esac
4982     add_asflags  -fPIC
4983 }
4984
4985 enabled pic && enable_weak_pic
4986
4987 check_cc <<EOF || die "Symbol mangling check failed."
4988 int ff_extern;
4989 EOF
4990 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4991 extern_prefix=${sym%%ff_extern*}
4992
4993 check_cc <<EOF && enable_weak inline_asm
4994 void foo(void) { __asm__ volatile ("" ::); }
4995 EOF
4996
4997 _restrict=
4998 for restrict_keyword in restrict __restrict__ __restrict; do
4999     check_cc <<EOF && _restrict=$restrict_keyword && break
5000 void foo(char * $restrict_keyword p);
5001 EOF
5002 done
5003
5004 check_cc <<EOF && enable pragma_deprecated
5005 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5006 EOF
5007
5008 check_cc <<EOF && enable attribute_packed
5009 struct { int x; } __attribute__((packed)) x;
5010 EOF
5011
5012 check_cc <<EOF && enable attribute_may_alias
5013 union { int x; } __attribute__((may_alias)) x;
5014 EOF
5015
5016 check_cc <<EOF || die "endian test failed"
5017 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5018 EOF
5019 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5020
5021 if ! enabled ppc64 || enabled bigendian; then
5022     disable vsx
5023 fi
5024
5025 check_gas() {
5026     log "check_gas using '$as' as AS"
5027     # :vararg is used on aarch64, arm and ppc altivec
5028     check_as <<EOF || return 1
5029 .macro m n, y:vararg=0
5030 \n: .int \y
5031 .endm
5032 m x
5033 EOF
5034     # .altmacro is only used in arm asm
5035     ! enabled arm || check_as <<EOF || return 1
5036 .altmacro
5037 EOF
5038     enable gnu_as
5039     return 0
5040 }
5041
5042 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5043     nogas=:
5044     enabled_any arm aarch64 && nogas=die
5045     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5046     as_noop=-v
5047
5048     case $as_type in
5049         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5050         gcc)  gaspp_as_type=gas ;;
5051         *)    gaspp_as_type=$as_type ;;
5052     esac
5053
5054     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5055
5056     test "${as#*gas-preprocessor.pl}" != "$as" ||
5057     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5058         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5059
5060     if ! check_gas ; then
5061         as=${gas:=$as}
5062         check_gas || \
5063             $nogas "GNU assembler not found, install/update gas-preprocessor"
5064     fi
5065
5066     check_as <<EOF && enable as_func
5067 .func test
5068 .endfunc
5069 EOF
5070 fi
5071
5072 check_inline_asm inline_asm_labels '"1:\n"'
5073
5074 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5075
5076 if enabled aarch64; then
5077     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5078     # internal assembler in clang 3.3 does not support this instruction
5079     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5080     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5081
5082     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5083
5084 elif enabled alpha; then
5085
5086     check_cflags -mieee
5087
5088 elif enabled arm; then
5089
5090     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5091
5092     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5093 float func(float a, float b){ return a+b; }
5094 EOF
5095
5096     enabled thumb && check_cflags -mthumb || check_cflags -marm
5097
5098     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5099         enable vfp_args
5100     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5101         enable vfp_args
5102     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5103         case "${cross_prefix:-$cc}" in
5104             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5105             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5106 __asm__ (".eabi_attribute 28, 1");
5107 int main(void) { return 0; }
5108 EOF
5109         esac
5110         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5111     fi
5112
5113     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5114     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5115     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5116     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5117     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5118     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5119     enabled setend  && check_insn setend  'setend be'
5120
5121     [ $target_os = linux ] || [ $target_os = android ] ||
5122         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5123             $ARCH_EXT_LIST_ARM
5124
5125     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5126
5127     check_as <<EOF && enable as_dn_directive
5128 ra .dn d0.i16
5129 .unreq ra
5130 EOF
5131
5132     # llvm's integrated assembler supports .object_arch from llvm 3.5
5133     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5134 .object_arch armv4
5135 EOF
5136
5137     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5138
5139 elif enabled mips; then
5140
5141     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5142     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5143     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5144
5145     # Enable minimum ISA based on selected options
5146     if enabled mips64; then
5147         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5148         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5149         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5150     else
5151         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5152         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5153         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5154         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5155     fi
5156
5157     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5158     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5159     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5160     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5161     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5162
5163 elif enabled parisc; then
5164
5165     if enabled gcc; then
5166         case $($cc -dumpversion) in
5167             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5168         esac
5169     fi
5170
5171 elif enabled ppc; then
5172
5173     enable local_aligned_8 local_aligned_16 local_aligned_32
5174
5175     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5176     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5177     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5178     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5179
5180     # AltiVec flags: The FSF version of GCC differs from the Apple version
5181     if enabled altivec; then
5182         check_cflags -maltivec -mabi=altivec &&
5183         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5184         check_cflags -faltivec
5185
5186         # check if our compiler supports Motorola AltiVec C API
5187         check_cc <<EOF || disable altivec
5188 $inc_altivec_h
5189 int main(void) {
5190     vector signed int v1 = (vector signed int) { 0 };
5191     vector signed int v2 = (vector signed int) { 1 };
5192     v1 = vec_add(v1, v2);
5193     return 0;
5194 }
5195 EOF
5196
5197         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5198     fi
5199
5200     if enabled vsx; then
5201         check_cflags -mvsx &&
5202         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5203     fi
5204
5205     if enabled power8; then
5206         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5207     fi
5208
5209 elif enabled x86; then
5210
5211     check_builtin rdtsc    intrin.h   "__rdtsc()"
5212     check_builtin mm_empty mmintrin.h "_mm_empty()"
5213
5214     enable local_aligned_8 local_aligned_16 local_aligned_32
5215
5216     # check whether EBP is available on x86
5217     # As 'i' is stored on the stack, this program will crash
5218     # if the base pointer is used to access it because the
5219     # base pointer is cleared in the inline assembly code.
5220     check_exec_crash <<EOF && enable ebp_available
5221 volatile int i=0;
5222 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5223 return i;
5224 EOF
5225
5226     # check whether EBX is available on x86
5227     check_inline_asm ebx_available '""::"b"(0)' &&
5228         check_inline_asm ebx_available '"":::"%ebx"'
5229
5230     # check whether xmm clobbers are supported
5231     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5232
5233     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5234         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5235
5236     # check whether binutils is new enough to compile SSSE3/MMXEXT
5237     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5238     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5239
5240     if ! disabled_any asm mmx yasm; then
5241         if check_cmd $yasmexe --version; then
5242             enabled x86_64 && yasm_extra="-m amd64"
5243             yasm_debug="-g dwarf2"
5244         elif check_cmd nasm -v; then
5245             yasmexe=nasm
5246             yasm_debug="-g -F dwarf"
5247             if enabled x86_64; then
5248                 case "$objformat" in
5249                     elf)   objformat=elf64 ;;
5250                     win32) objformat=win64 ;;
5251                 esac
5252             fi
5253         fi
5254
5255         YASMFLAGS="-f $objformat $yasm_extra"
5256         enabled pic               && append YASMFLAGS "-DPIC"
5257         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5258         case "$objformat" in
5259             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5260         esac
5261
5262         check_yasm "movbe ecx, [5]" && enable yasm ||
5263             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5264         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5265         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5266         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5267         check_yasm "CPU amdnop" || disable cpunop
5268     fi
5269
5270     case "$cpu" in
5271         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5272             disable fast_clz
5273         ;;
5274     esac
5275
5276 fi
5277
5278 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5279
5280 check_ldflags -Wl,--as-needed
5281 check_ldflags -Wl,-z,noexecstack
5282
5283 if check_func dlopen; then
5284     ldl=
5285 elif check_func dlopen -ldl; then
5286     ldl=-ldl
5287 fi
5288
5289 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5290 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5291 frei0r_filter_extralibs='$ldl'
5292 frei0r_src_filter_extralibs='$ldl'
5293 ladspa_filter_extralibs='$ldl'
5294 nvenc_encoder_extralibs='$ldl'
5295 coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5296 coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5297
5298 if ! disabled network; then
5299     check_func getaddrinfo $network_extralibs
5300     check_func inet_aton $network_extralibs
5301
5302     check_type netdb.h "struct addrinfo"
5303     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5304     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5305     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5306     check_type poll.h "struct pollfd"
5307     check_type netinet/sctp.h "struct sctp_event_subscribe"
5308     check_struct "sys/socket.h" "struct msghdr" msg_flags
5309     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5310     check_type netinet/in.h "struct sockaddr_in6"
5311     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5312     check_type "sys/types.h sys/socket.h" socklen_t
5313
5314     # Prefer arpa/inet.h over winsock2
5315     if check_header arpa/inet.h ; then
5316         check_func closesocket
5317     elif check_header winsock2.h ; then
5318         check_func_headers winsock2.h closesocket -lws2 &&
5319             network_extralibs="-lws2" ||
5320         { check_func_headers winsock2.h closesocket -lws2_32 &&
5321             network_extralibs="-lws2_32"; } || disable winsock2_h network
5322         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5323
5324         check_type ws2tcpip.h socklen_t
5325         check_type ws2tcpip.h "struct addrinfo"
5326         check_type ws2tcpip.h "struct group_source_req"
5327         check_type ws2tcpip.h "struct ip_mreq_source"
5328         check_type ws2tcpip.h "struct ipv6_mreq"
5329         check_type winsock2.h "struct pollfd"
5330         check_struct winsock2.h "struct sockaddr" sa_len
5331         check_type ws2tcpip.h "struct sockaddr_in6"
5332         check_type ws2tcpip.h "struct sockaddr_storage"
5333     else
5334         disable network
5335     fi
5336 fi
5337
5338 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5339 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5340 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5341 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5342 check_builtin sarestart signal.h "SA_RESTART"
5343 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5344 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5345 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5346 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5347
5348 case "$custom_allocator" in
5349     jemalloc)
5350         # jemalloc by default does not use a prefix
5351         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5352     ;;
5353     tcmalloc)
5354         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5355         malloc_prefix=tc_
5356     ;;
5357 esac
5358
5359 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5360 check_func  ${malloc_prefix}memalign            && enable memalign
5361 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5362
5363 check_func  access
5364 check_func  arc4random
5365 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5366 check_func  fcntl
5367 check_func  fork
5368 check_func  gethrtime
5369 check_func  getopt
5370 check_func  getrusage
5371 check_func  gettimeofday
5372 check_func  isatty
5373 check_func  mach_absolute_time
5374 check_func  mkstemp
5375 check_func  mmap
5376 check_func  mprotect
5377 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5378 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5379 check_func  sched_getaffinity
5380 check_func  setrlimit
5381 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5382 check_func  strerror_r
5383 check_func  sysconf
5384 check_func  sysctl
5385 check_func  usleep
5386
5387 check_func_headers conio.h kbhit
5388 check_func_headers io.h setmode
5389 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5390 check_func_headers stdlib.h getenv
5391 check_func_headers sys/stat.h lstat
5392
5393 check_func_headers windows.h CoTaskMemFree -lole32
5394 check_func_headers windows.h GetProcessAffinityMask
5395 check_func_headers windows.h GetProcessTimes
5396 check_func_headers windows.h GetSystemTimeAsFileTime
5397 check_func_headers windows.h MapViewOfFile
5398 check_func_headers windows.h PeekNamedPipe
5399 check_func_headers windows.h SetConsoleTextAttribute
5400 check_func_headers windows.h SetConsoleCtrlHandler
5401 check_func_headers windows.h Sleep
5402 check_func_headers windows.h VirtualAlloc
5403 check_struct windows.h "CONDITION_VARIABLE" Ptr
5404 check_func_headers glob.h glob
5405 enabled xlib &&
5406     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5407
5408 check_header AudioToolbox/AudioToolbox.h
5409 check_header direct.h
5410 check_header dirent.h
5411 check_header dlfcn.h
5412 check_header d3d11.h
5413 check_header dxva.h
5414 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5415 check_header io.h
5416 check_header libcrystalhd/libcrystalhd_if.h
5417 check_header mach/mach_time.h
5418 check_header malloc.h
5419 check_header net/udplite.h
5420 check_header poll.h
5421 check_header sys/mman.h
5422 check_header sys/param.h
5423 check_header sys/resource.h
5424 check_header sys/select.h
5425 check_header sys/time.h
5426 check_header sys/un.h
5427 check_header termios.h
5428 check_header unistd.h
5429 check_header valgrind/valgrind.h
5430 check_header vdpau/vdpau.h
5431 check_header vdpau/vdpau_x11.h
5432 check_header VideoDecodeAcceleration/VDADecoder.h
5433 check_header VideoToolbox/VideoToolbox.h
5434 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5435 check_header windows.h
5436 check_header X11/extensions/XvMClib.h
5437 check_header asm/types.h
5438
5439 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5440 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5441 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5442 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5443
5444 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5445
5446 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5447 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5448 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5449 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5450 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5451
5452 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5453 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5454
5455 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5456
5457 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5458
5459 if ! disabled w32threads && ! enabled pthreads; then
5460     check_func_headers "windows.h process.h" _beginthreadex &&
5461         enable w32threads || disable w32threads
5462     if ! enabled w32threads && enabled winrt; then
5463         check_func_headers "windows.h" CreateThread &&
5464             enable w32threads || disable w32threads
5465     fi
5466 fi
5467
5468 # check for some common methods of building with pthread support
5469 # do this before the optional library checks as some of them require pthreads
5470 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5471     enable pthreads
5472     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5473         add_cflags -pthread
5474         add_extralibs -pthread
5475     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5476         add_cflags -pthreads
5477         add_extralibs -pthreads
5478     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5479         add_cflags -ldl -pthread
5480         add_extralibs -ldl -pthread
5481     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5482         add_extralibs -lpthreadGC2
5483     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5484         :
5485     elif ! check_func pthread_join && ! check_func pthread_create; then
5486         disable pthreads
5487     fi
5488     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5489 fi
5490
5491
5492 if enabled pthreads; then
5493   check_func pthread_cancel
5494 fi
5495
5496 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5497 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5498 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5499
5500 check_lib math.h sin -lm && LIBM="-lm"
5501 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5502
5503 atan2f_args=2
5504 copysign_args=2
5505 hypot_args=2
5506 ldexpf_args=2
5507 powf_args=2
5508
5509 for func in $MATH_FUNCS; do
5510     eval check_mathfunc $func \${${func}_args:-1}
5511 done
5512
5513 for func in $COMPLEX_FUNCS; do
5514     eval check_complexfunc $func \${${func}_args:-1}
5515 done
5516
5517 # these are off by default, so fail if requested and not available
5518 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5519 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5520                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5521 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5522                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5523                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5524 enabled cuda              && { check_lib cuda.h cuInit -lcuda ||
5525                                die "ERROR: CUDA not found"; }
5526 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5527 enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
5528 enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
5529 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5530 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5531 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5532 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5533 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&
5534                                check_lib2 "dlfcn.h" dlopen -ldl; }
5535 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5536 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5537 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5538 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5539 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5540 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5541                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5542                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5543 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5544 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5545 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5546                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5547                                  warn "using libfdk without pkg-config"; } }
5548 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"
5549 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5550 enabled fontconfig        && enable libfontconfig
5551 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5552 enabled libfreetype       && require_libfreetype
5553 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5554 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5555 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5556                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5557                                done || die "ERROR: libgsm not found"; }
5558 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5559 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5560 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5561 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5562 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5563 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5564 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5565 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5566 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5567                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
5568                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5569                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
5570 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5571 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5572                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5573                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5574                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5575                                die "ERROR: libopenjpeg not found"; }
5576 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5577 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5578 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5579 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5580 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5581 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5582 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5583                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5584 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5585 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5586 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5587 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5588 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5589 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5590 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5591                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5592                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5593 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5594 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5595 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5596 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5597 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5598
5599 enabled libvpx            && {
5600     enabled libvpx_vp8_decoder && {
5601         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5602             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5603                 die "ERROR: libvpx decoder version must be >=0.9.1";
5604     }
5605     enabled libvpx_vp8_encoder && {
5606         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5607             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5608                 die "ERROR: libvpx encoder version must be >=0.9.7";
5609     }
5610     enabled libvpx_vp9_decoder && {
5611         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5612             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5613                 disable libvpx_vp9_decoder;
5614     }
5615     enabled libvpx_vp9_encoder && {
5616         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5617             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5618                 disable libvpx_vp9_encoder;
5619     }
5620     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5621         die "libvpx enabled but no supported decoders found"
5622     fi
5623 }
5624
5625 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5626 enabled libwebp           && {
5627     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5628     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5629 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5630                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5631                                  warn "using libx264 without pkg-config"; } } &&
5632                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5633                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5634                              { check_cpp_condition x264.h "X264_MPEG2" &&
5635                                enable libx262; }
5636 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5637                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||
5638                                die "ERROR: libx265 version must be >= 68."; }
5639 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5640 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5641 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5642 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5643 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
5644                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
5645                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
5646 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
5647 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5648                                 { ! enabled cross_compile && {
5649                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5650                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5651                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5652                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5653                                die "ERROR: mmal not found"; }
5654 enabled mmal &&
5655     (check_code cc interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS" ||
5656      die "ERROR: mmal firmware headers too old")
5657
5658 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5659 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5660                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
5661                                die "ERROR: NVENC API version 5 or older is not supported"; } &&
5662                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5663 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5664                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5665                                die "ERROR: openal not found"; } &&
5666                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5667                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5668 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5669                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5670                                die "ERROR: opencl not found"; } &&
5671                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5672                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5673                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5674 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5675                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5676                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5677                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5678                                die "ERROR: opengl not found."
5679                              }
5680 enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||
5681                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5682                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5683                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5684                                die "ERROR: openssl not found"; }
5685 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5686
5687 # libdc1394 check
5688 if enabled libdc1394; then
5689     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5690         enable libdc1394_2; } ||
5691     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5692         enable libdc1394_1; } ||
5693     die "ERROR: No version of libdc1394 found "
5694 fi
5695
5696 if enabled gcrypt; then
5697     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5698     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5699         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5700         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5701         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5702             die "ERROR: gcrypt not found"
5703         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5704     else
5705         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5706     fi
5707 fi
5708
5709 if ! disabled sdl; then
5710     SDL_CONFIG="${cross_prefix}sdl-config"
5711     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5712         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5713         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5714         enable sdl
5715     else
5716         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5717             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5718             sdl_libs=$("${SDL_CONFIG}" --libs)
5719             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5720             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5721             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5722             enable sdl
5723         elif enabled sdl ; then
5724             die "ERROR: SDL not found"
5725         else
5726             disable sdl
5727         fi
5728     fi
5729     if test $target_os = "mingw32"; then
5730         sdl_libs="$sdl_libs -mconsole"
5731     fi
5732 fi
5733 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5734
5735 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5736     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5737     enable securetransport; }
5738
5739 disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
5740                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }
5741
5742 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5743 enabled makeinfo \
5744     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5745     && enable makeinfo_html || disable makeinfo_html
5746 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5747 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5748 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5749 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5750
5751 check_header linux/fb.h
5752 check_header linux/videodev.h
5753 check_header linux/videodev2.h
5754 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5755
5756 check_header sys/videoio.h
5757 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5758
5759 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5760 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5761 # w32api 3.12 had it defined wrong
5762 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5763
5764 check_type "dshow.h" IBaseFilter
5765
5766 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5767 { check_header dev/bktr/ioctl_meteor.h &&
5768   check_header dev/bktr/ioctl_bt848.h; } ||
5769 { check_header machine/ioctl_meteor.h &&
5770   check_header machine/ioctl_bt848.h; } ||
5771 { check_header dev/video/meteor/ioctl_meteor.h &&
5772   check_header dev/video/bktr/ioctl_bt848.h; } ||
5773 check_header dev/ic/bt8xx.h
5774
5775 check_header sndio.h
5776 if check_struct sys/soundcard.h audio_buf_info bytes; then
5777     enable_safe sys/soundcard.h
5778 else
5779     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5780     #include <sys/soundcard.h>
5781     audio_buf_info abc;
5782 EOF
5783 fi
5784 check_header soundcard.h
5785
5786 enabled_any alsa_indev alsa_outdev &&
5787     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5788
5789 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
5790     check_func jack_port_get_latency_range -ljack
5791
5792 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5793
5794 if enabled libcdio; then
5795     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5796     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5797     die "ERROR: No usable libcdio/cdparanoia found"
5798 fi
5799
5800 enabled xlib &&
5801     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5802
5803 if ! disabled libxcb; then
5804     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5805         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5806     } && disable x11grab && enable libxcb
5807
5808 if enabled libxcb; then
5809     disabled libxcb_shm || {
5810         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5811             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5812         } && check_header sys/shm.h && enable libxcb_shm; }
5813
5814     disabled libxcb_xfixes || {
5815         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5816             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5817         } && enable libxcb_xfixes; }
5818
5819     disabled libxcb_shape || {
5820         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5821             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5822         } && enable libxcb_shape; }
5823
5824     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5825     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5826 fi
5827 fi
5828
5829 if enabled x11grab; then
5830     enabled xlib || die "ERROR: Xlib not found"
5831     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5832     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5833 fi
5834
5835 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5836
5837 enabled dxva2api_h &&
5838     check_cc <<EOF && enable dxva2api_cobj
5839 #define _WIN32_WINNT 0x0600
5840 #define COBJMACROS
5841 #include <windows.h>
5842 #include <d3d9.h>
5843 #include <dxva2api.h>
5844 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5845 EOF
5846
5847 enabled vaapi &&
5848     check_lib va/va.h vaInitialize -lva ||
5849     disable vaapi
5850
5851 enabled vaapi && enabled xlib &&
5852     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5853     enable vaapi_x11
5854
5855 enabled vdpau &&
5856     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5857     disable vdpau
5858
5859 enabled vdpau && enabled xlib &&
5860     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5861     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5862     enable vdpau_x11
5863
5864 # Funny iconv installations are not unusual, so check it after all flags have been set
5865 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5866
5867 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5868
5869 # add some useful compiler flags if supported
5870 check_cflags -Wdeclaration-after-statement
5871 check_cflags -Wall
5872 check_cflags -Wdisabled-optimization
5873 check_cflags -Wpointer-arith
5874 check_cflags -Wredundant-decls
5875 check_cflags -Wwrite-strings
5876 check_cflags -Wtype-limits
5877 check_cflags -Wundef
5878 check_cflags -Wmissing-prototypes
5879 check_cflags -Wno-pointer-to-int-cast
5880 check_cflags -Wstrict-prototypes
5881 check_cflags -Wempty-body
5882 enabled extra_warnings && check_cflags -Winline
5883 enabled extra_warnings && check_cflags -Wcast-qual
5884
5885 check_disable_warning(){
5886     warning_flag=-W${1#-Wno-}
5887     test_cflags $warning_flag && add_cflags $1
5888 }
5889
5890 check_disable_warning -Wno-parentheses
5891 check_disable_warning -Wno-switch
5892 check_disable_warning -Wno-format-zero-length
5893 check_disable_warning -Wno-pointer-sign
5894 check_disable_warning -Wno-unused-const-variable
5895
5896 # add some linker flags
5897 check_ldflags -Wl,--warn-common
5898 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5899 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5900 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5901 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5902
5903 # add some strip flags
5904 # -wN '..@*' is more selective than -x, but not available everywhere.
5905 check_stripflags -wN \'..@*\' || check_stripflags -x
5906
5907 enabled neon_clobber_test &&
5908     check_ldflags -Wl,--wrap,avcodec_open2              \
5909                   -Wl,--wrap,avcodec_decode_audio4      \
5910                   -Wl,--wrap,avcodec_decode_video2      \
5911                   -Wl,--wrap,avcodec_decode_subtitle2   \
5912                   -Wl,--wrap,avcodec_encode_audio2      \
5913                   -Wl,--wrap,avcodec_encode_video2      \
5914                   -Wl,--wrap,avcodec_encode_subtitle    \
5915                   -Wl,--wrap,swr_convert                \
5916                   -Wl,--wrap,avresample_convert ||
5917     disable neon_clobber_test
5918
5919 enabled xmm_clobber_test &&
5920     check_ldflags -Wl,--wrap,avcodec_open2              \
5921                   -Wl,--wrap,avcodec_decode_audio4      \
5922                   -Wl,--wrap,avcodec_decode_video2      \
5923                   -Wl,--wrap,avcodec_decode_subtitle2   \
5924                   -Wl,--wrap,avcodec_encode_audio2      \
5925                   -Wl,--wrap,avcodec_encode_video2      \
5926                   -Wl,--wrap,avcodec_encode_subtitle    \
5927                   -Wl,--wrap,swr_convert                \
5928                   -Wl,--wrap,avresample_convert         \
5929                   -Wl,--wrap,sws_scale ||
5930     disable xmm_clobber_test
5931
5932 echo "X { local: *; };" > $TMPV
5933 if test_ldflags -Wl,--version-script,$TMPV; then
5934     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5935 elif test_ldflags -Wl,-M,$TMPV; then
5936     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5937 fi
5938
5939 check_cc <<EOF && enable symver_asm_label
5940 void ff_foo(void) __asm__ ("av_foo@VERSION");
5941 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5942 EOF
5943     check_cc <<EOF && enable symver_gnu_asm
5944 __asm__(".symver ff_foo,av_foo@VERSION");
5945 void ff_foo(void) {}
5946 EOF
5947
5948 if [ -z "$optflags" ]; then
5949     if enabled small; then
5950         optflags=$cflags_size
5951     elif enabled optimizations; then
5952         optflags=$cflags_speed
5953     else
5954         optflags=$cflags_noopt
5955     fi
5956 fi
5957
5958 check_optflags(){
5959     check_cflags "$@"
5960     enabled lto && check_ldflags "$@"
5961 }
5962
5963
5964 if enabled lto; then
5965     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5966     check_cflags  -flto
5967     check_ldflags -flto $cpuflags
5968     disable inline_asm_direct_symbol_refs
5969 fi
5970
5971 check_optflags $optflags
5972 check_optflags -fno-math-errno
5973 check_optflags -fno-signed-zeros
5974
5975 enabled ftrapv && check_cflags -ftrapv
5976
5977 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5978 int x;
5979 EOF
5980
5981
5982 if enabled icc; then
5983     # Just warnings, no remarks
5984     check_cflags -w1
5985     # -wd: Disable following warnings
5986     # 144, 167, 556: -Wno-pointer-sign
5987     # 188: enumerated type mixed with another type
5988     # 1292: attribute "foo" ignored
5989     # 1419: external declaration in primary source file
5990     # 10006: ignoring unknown option -fno-signed-zeros
5991     # 10148: ignoring unknown option -Wno-parentheses
5992     # 10156: ignoring option '-W'; no argument required
5993     # 13200: No EMMS instruction before call to function
5994     # 13203: No EMMS instruction before return from function
5995     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5996     # 11030: Warning unknown option --as-needed
5997     # 10156: ignoring option '-export'; no argument required
5998     check_ldflags -wd10156,11030
5999     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6000     enable ebp_available
6001     # The test above does not test linking
6002     enabled lto && disable symver_asm_label
6003     if enabled x86_32; then
6004         icc_version=$($cc -dumpversion)
6005         test ${icc_version%%.*} -ge 11 &&
6006             check_cflags -falign-stack=maintain-16-byte ||
6007             disable aligned_stack
6008     fi
6009 elif enabled ccc; then
6010     # disable some annoying warnings
6011     add_cflags -msg_disable bitnotint
6012     add_cflags -msg_disable mixfuncvoid
6013     add_cflags -msg_disable nonstandcast
6014     add_cflags -msg_disable unsupieee
6015 elif enabled gcc; then
6016     case $gcc_basever in
6017         4.9*) enabled x86 || check_optflags -fno-tree-vectorize ;;
6018         4.*)                 check_optflags -fno-tree-vectorize ;;
6019         *)    enabled x86 || check_optflags -fno-tree-vectorize ;;
6020     esac
6021     check_cflags -Werror=format-security
6022     check_cflags -Werror=implicit-function-declaration
6023     check_cflags -Werror=missing-prototypes
6024     check_cflags -Werror=return-type
6025     check_cflags -Werror=vla
6026     check_cflags -Wformat
6027     check_cflags -fdiagnostics-color=auto
6028     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6029 elif enabled llvm_gcc; then
6030     check_cflags -mllvm -stack-alignment=16
6031 elif enabled clang; then
6032     check_cflags -mllvm -stack-alignment=16
6033     check_cflags -Qunused-arguments
6034     check_cflags -Werror=implicit-function-declaration
6035     check_cflags -Werror=missing-prototypes
6036     check_cflags -Werror=return-type
6037 elif enabled cparser; then
6038     add_cflags -Wno-missing-variable-declarations
6039     add_cflags -Wno-empty-statement
6040 elif enabled armcc; then
6041     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6042     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6043     # 2523: use of inline assembly is deprecated
6044     add_cflags -W${armcc_opt},--diag_suppress=2523
6045     add_cflags -W${armcc_opt},--diag_suppress=1207
6046     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6047     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6048     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6049     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6050 elif enabled tms470; then
6051     add_cflags -pds=824 -pds=837
6052     disable inline_asm
6053 elif enabled pathscale; then
6054     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6055 elif enabled_any msvc icl; then
6056     enabled x86_32 && disable aligned_stack
6057     enabled_all x86_32 debug && add_cflags -Oy-
6058     enabled debug && add_ldflags -debug
6059     enable pragma_deprecated
6060     if enabled icl; then
6061         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6062         # (correctly) on icl 13.x.
6063         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6064             add_cflags -Qansi-alias
6065         # Some inline asm is not compilable in debug
6066         if enabled debug; then
6067             disable ebp_available
6068             disable ebx_available
6069         fi
6070     fi
6071     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6072     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6073     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6074     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6075     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6076     # MSVC 2013 and newer can handle it fine.
6077     # If this declspec fails, force including stdlib.h before the restrict redefinition
6078     # happens in config.h.
6079     if [ $_restrict != restrict ]; then
6080         check_cc <<EOF || add_cflags -FIstdlib.h
6081 __declspec($_restrict) void* foo(int);
6082 EOF
6083     fi
6084     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
6085 fi
6086
6087 for pfx in "" host_; do
6088     varname=${pfx%_}cc_type
6089     eval "type=\$$varname"
6090     if [ $type = "msvc" ]; then
6091         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6092 static inline int foo(int a) { return a; }
6093 EOF
6094     fi
6095 done
6096
6097 case $as_type in
6098     clang)
6099         add_asflags -Qunused-arguments
6100     ;;
6101 esac
6102
6103 case $ld_type in
6104     clang)
6105         check_ldflags -Qunused-arguments
6106     ;;
6107 esac
6108
6109 case $target_os in
6110     osf1)
6111         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6112     ;;
6113     plan9)
6114         add_cppflags -Dmain=plan9_main
6115     ;;
6116 esac
6117
6118 enable frame_thread_encoder
6119
6120 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6121
6122 check_deps $CONFIG_LIST       \
6123            $CONFIG_EXTRA      \
6124            $HAVE_LIST         \
6125            $ALL_COMPONENTS    \
6126
6127 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"
6128
6129
6130 if test $target_os = "haiku"; then
6131     disable memalign
6132     disable posix_memalign
6133 fi
6134
6135 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6136     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6137     enable dxva2_lib
6138
6139 ! enabled_any memalign posix_memalign aligned_malloc &&
6140     enabled simd_align_16 && enable memalign_hack
6141
6142 # add_dep lib dep
6143 # -> enable ${lib}_deps_${dep}
6144 # -> add $dep to ${lib}_deps only once
6145 add_dep() {
6146     lib=$1
6147     dep=$2
6148     enabled "${lib}_deps_${dep}" && return 0
6149     enable  "${lib}_deps_${dep}"
6150     prepend "${lib}_deps" $dep
6151 }
6152
6153 # merge deps lib components
6154 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6155 merge_deps() {
6156     lib=$1
6157     shift
6158     for comp in $*; do
6159         enabled $comp || continue
6160         eval "dep=\"\$${comp}_deps\""
6161         for d in $dep; do
6162             add_dep $lib $d
6163         done
6164     done
6165 }
6166
6167 merge_deps libavfilter $FILTER_LIST
6168
6169 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6170
6171 for thread in $THREADS_LIST; do
6172     if enabled $thread; then
6173         test -n "$thread_type" &&
6174             die "ERROR: Only one thread type must be selected." ||
6175             thread_type="$thread"
6176     fi
6177 done
6178
6179 enabled zlib && add_cppflags -DZLIB_CONST
6180
6181 # conditional library dependencies, in linking order
6182 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6183 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6184 enabled aresample_filter    && prepend avfilter_deps "swresample"
6185 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6186 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6187 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6188 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6189 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6190 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6191 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6192 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6193 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6194 enabled pan_filter          && prepend avfilter_deps "swresample"
6195 enabled pp_filter           && prepend avfilter_deps "postproc"
6196 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6197 enabled resample_filter && prepend avfilter_deps "avresample"
6198 enabled sab_filter          && prepend avfilter_deps "swscale"
6199 enabled scale_filter    && prepend avfilter_deps "swscale"
6200 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6201 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6202 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6203 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6204 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6205 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6206 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6207 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6208 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6209
6210 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6211
6212 enabled opus_decoder    && prepend avcodec_deps "swresample"
6213
6214 expand_deps(){
6215     lib_deps=${1}_deps
6216     eval "deps=\$$lib_deps"
6217     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6218     unique $lib_deps
6219 }
6220
6221 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6222 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6223
6224 map 'expand_deps $v' $LIBRARY_LIST
6225
6226 echo "install prefix            $prefix"
6227 echo "source path               $source_path"
6228 echo "C compiler                $cc"
6229 echo "C library                 $libc_type"
6230 if test "$host_cc" != "$cc"; then
6231     echo "host C compiler           $host_cc"
6232     echo "host C library            $host_libc_type"
6233 fi
6234 echo "ARCH                      $arch ($cpu)"
6235 if test "$build_suffix" != ""; then
6236     echo "build suffix              $build_suffix"
6237 fi
6238 if test "$progs_suffix" != ""; then
6239     echo "progs suffix              $progs_suffix"
6240 fi
6241 if test "$extra_version" != ""; then
6242     echo "version string suffix     $extra_version"
6243 fi
6244 echo "big-endian                ${bigendian-no}"
6245 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6246 if enabled x86; then
6247     echo "${yasmexe}                      ${yasm-no}"
6248     echo "MMX enabled               ${mmx-no}"
6249     echo "MMXEXT enabled            ${mmxext-no}"
6250     echo "3DNow! enabled            ${amd3dnow-no}"
6251     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6252     echo "SSE enabled               ${sse-no}"
6253     echo "SSSE3 enabled             ${ssse3-no}"
6254     echo "AESNI enabled             ${aesni-no}"
6255     echo "AVX enabled               ${avx-no}"
6256     echo "XOP enabled               ${xop-no}"
6257     echo "FMA3 enabled              ${fma3-no}"
6258     echo "FMA4 enabled              ${fma4-no}"
6259     echo "i686 features enabled     ${i686-no}"
6260     echo "CMOV is fast              ${fast_cmov-no}"
6261     echo "EBX available             ${ebx_available-no}"
6262     echo "EBP available             ${ebp_available-no}"
6263 fi
6264 if enabled aarch64; then
6265     echo "NEON enabled              ${neon-no}"
6266     echo "VFP enabled               ${vfp-no}"
6267 fi
6268 if enabled arm; then
6269     echo "ARMv5TE enabled           ${armv5te-no}"
6270     echo "ARMv6 enabled             ${armv6-no}"
6271     echo "ARMv6T2 enabled           ${armv6t2-no}"
6272     echo "VFP enabled               ${vfp-no}"
6273     echo "NEON enabled              ${neon-no}"
6274     echo "THUMB enabled             ${thumb-no}"
6275 fi
6276 if enabled mips; then
6277     echo "MIPS FPU enabled          ${mipsfpu-no}"
6278     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6279     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6280     echo "MIPS MSA enabled          ${msa-no}"
6281     echo "LOONGSON MMI enabled      ${mmi-no}"
6282 fi
6283 if enabled ppc; then
6284     echo "AltiVec enabled           ${altivec-no}"
6285     echo "VSX enabled               ${vsx-no}"
6286     echo "POWER8 enabled            ${power8-no}"
6287     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6288     echo "dcbzl available           ${dcbzl-no}"
6289 fi
6290 echo "debug symbols             ${debug-no}"
6291 echo "strip symbols             ${stripping-no}"
6292 echo "optimize for size         ${small-no}"
6293 echo "optimizations             ${optimizations-no}"
6294 echo "static                    ${static-no}"
6295 echo "shared                    ${shared-no}"
6296 echo "postprocessing support    ${postproc-no}"
6297 echo "new filter support        ${avfilter-no}"
6298 echo "network support           ${network-no}"
6299 echo "threading support         ${thread_type-no}"
6300 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6301 echo "SDL support               ${sdl-no}"
6302 echo "opencl enabled            ${opencl-no}"
6303 echo "JNI support               ${jni-no}"
6304 echo "texi2html enabled         ${texi2html-no}"
6305 echo "perl enabled              ${perl-no}"
6306 echo "pod2man enabled           ${pod2man-no}"
6307 echo "makeinfo enabled          ${makeinfo-no}"
6308 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6309 test -n "$random_seed" &&
6310     echo "random seed               ${random_seed}"
6311 echo
6312
6313 echo "Enabled programs:"
6314 print_enabled '' $PROGRAM_LIST | print_in_columns
6315 echo
6316
6317 echo "External libraries:"
6318 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6319 echo
6320
6321 echo "Libraries:"
6322 print_enabled '' $LIBRARY_LIST | print_in_columns
6323 echo
6324
6325 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6326     echo "Enabled ${type}s:"
6327     eval list=\$$(toupper $type)_LIST
6328     print_enabled '_*' $list | print_in_columns
6329     echo
6330 done
6331
6332 license="LGPL version 2.1 or later"
6333 if enabled nonfree; then
6334     license="nonfree and unredistributable"
6335 elif enabled gplv3; then
6336     license="GPL version 3 or later"
6337 elif enabled lgplv3; then
6338     license="LGPL version 3 or later"
6339 elif enabled gpl; then
6340     license="GPL version 2 or later"
6341 fi
6342
6343 echo "License: $license"
6344
6345 echo "Creating config.mak, config.h, and doc/config.texi..."
6346
6347 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6348
6349 enabled stripping || strip="echo skipping strip"
6350
6351 config_files="$TMPH config.mak doc/config.texi"
6352
6353 cat > config.mak <<EOF
6354 # Automatically generated by configure - do not modify!
6355 ifndef FFMPEG_CONFIG_MAK
6356 FFMPEG_CONFIG_MAK=1
6357 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6358 prefix=$prefix
6359 LIBDIR=\$(DESTDIR)$libdir
6360 SHLIBDIR=\$(DESTDIR)$shlibdir
6361 INCDIR=\$(DESTDIR)$incdir
6362 BINDIR=\$(DESTDIR)$bindir
6363 DATADIR=\$(DESTDIR)$datadir
6364 DOCDIR=\$(DESTDIR)$docdir
6365 MANDIR=\$(DESTDIR)$mandir
6366 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6367 INSTALL_NAME_DIR=$install_name_dir
6368 SRC_PATH=$source_path
6369 SRC_LINK=$source_link
6370 ifndef MAIN_MAKEFILE
6371 SRC_PATH:=\$(SRC_PATH:.%=..%)
6372 endif
6373 CC_IDENT=$cc_ident
6374 ARCH=$arch
6375 INTRINSICS=$intrinsics
6376 CC=$cc
6377 CXX=$cxx
6378 AS=$as
6379 OBJCC=$objcc
6380 LD=$ld
6381 DEPCC=$dep_cc
6382 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6383 DEPAS=$as
6384 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6385 YASM=$yasmexe
6386 DEPYASM=$yasmexe
6387 AR=$ar
6388 ARFLAGS=$arflags
6389 AR_O=$ar_o
6390 RANLIB=$ranlib
6391 STRIP=$strip
6392 CP=cp -p
6393 LN_S=$ln_s
6394 CPPFLAGS=$CPPFLAGS
6395 CFLAGS=$CFLAGS
6396 CXXFLAGS=$CXXFLAGS
6397 OBJCFLAGS=$OBJCFLAGS
6398 ASFLAGS=$ASFLAGS
6399 AS_C=$AS_C
6400 AS_O=$AS_O
6401 OBJCC_C=$OBJCC_C
6402 OBJCC_E=$OBJCC_E
6403 OBJCC_O=$OBJCC_O
6404 CC_C=$CC_C
6405 CC_E=$CC_E
6406 CC_O=$CC_O
6407 CXX_C=$CXX_C
6408 CXX_O=$CXX_O
6409 LD_O=$LD_O
6410 LD_LIB=$LD_LIB
6411 LD_PATH=$LD_PATH
6412 DLLTOOL=$dlltool
6413 WINDRES=$windres
6414 DEPWINDRES=$dep_cc
6415 DOXYGEN=$doxygen
6416 LDFLAGS=$LDFLAGS
6417 LDEXEFLAGS=$LDEXEFLAGS
6418 LDLIBFLAGS=$LDLIBFLAGS
6419 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6420 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6421 YASMFLAGS=$YASMFLAGS
6422 BUILDSUF=$build_suffix
6423 PROGSSUF=$progs_suffix
6424 FULLNAME=$FULLNAME
6425 LIBPREF=$LIBPREF
6426 LIBSUF=$LIBSUF
6427 LIBNAME=$LIBNAME
6428 SLIBPREF=$SLIBPREF
6429 SLIBSUF=$SLIBSUF
6430 EXESUF=$EXESUF
6431 EXTRA_VERSION=$extra_version
6432 CCDEP=$CCDEP
6433 CXXDEP=$CXXDEP
6434 CCDEP_FLAGS=$CCDEP_FLAGS
6435 ASDEP=$ASDEP
6436 ASDEP_FLAGS=$ASDEP_FLAGS
6437 CC_DEPFLAGS=$CC_DEPFLAGS
6438 AS_DEPFLAGS=$AS_DEPFLAGS
6439 HOSTCC=$host_cc
6440 HOSTLD=$host_ld
6441 HOSTCFLAGS=$host_cflags
6442 HOSTCPPFLAGS=$host_cppflags
6443 HOSTEXESUF=$HOSTEXESUF
6444 HOSTLDFLAGS=$host_ldflags
6445 HOSTLIBS=$host_libs
6446 DEPHOSTCC=$host_cc
6447 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6448 HOSTCCDEP=$HOSTCCDEP
6449 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6450 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6451 HOSTCC_C=$HOSTCC_C
6452 HOSTCC_O=$HOSTCC_O
6453 HOSTLD_O=$HOSTLD_O
6454 TARGET_EXEC=$target_exec $target_exec_args
6455 TARGET_PATH=$target_path
6456 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6457 CFLAGS-ffplay=$sdl_cflags
6458 ZLIB=$($ldflags_filter -lz)
6459 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6460 EXTRALIBS=$extralibs
6461 COMPAT_OBJS=$compat_objs
6462 EXEOBJS=$exeobjs
6463 INSTALL=$install
6464 LIBTARGET=${LIBTARGET}
6465 SLIBNAME=${SLIBNAME}
6466 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6467 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6468 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6469 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6470 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6471 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6472 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6473 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6474 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6475 NOREDZONE_FLAGS=$noredzone_flags
6476 EOF
6477
6478 get_version(){
6479     lcname=lib${1}
6480     name=$(toupper $lcname)
6481     file=$source_path/$lcname/version.h
6482     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6483     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6484     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6485     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6486     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6487     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6488 }
6489
6490 map 'get_version $v' $LIBRARY_LIST
6491
6492 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6493
6494 print_program_libs(){
6495     eval "program_libs=\$${1}_libs"
6496     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6497 }
6498
6499 map 'print_program_libs $v' $PROGRAM_LIST
6500
6501 cat > $TMPH <<EOF
6502 /* Automatically generated by configure - do not modify! */
6503 #ifndef FFMPEG_CONFIG_H
6504 #define FFMPEG_CONFIG_H
6505 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6506 #define FFMPEG_LICENSE "$(c_escape $license)"
6507 #define CONFIG_THIS_YEAR 2016
6508 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6509 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6510 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6511 #define av_restrict $_restrict
6512 #define EXTERN_PREFIX "${extern_prefix}"
6513 #define EXTERN_ASM ${extern_prefix}
6514 #define BUILDSUF "$build_suffix"
6515 #define SLIBSUF "$SLIBSUF"
6516 #define HAVE_MMX2 HAVE_MMXEXT
6517 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6518 EOF
6519
6520 test -n "$assert_level" &&
6521     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6522
6523 test -n "$malloc_prefix" &&
6524     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6525
6526 if enabled yasm; then
6527     append config_files $TMPASM
6528     printf '' >$TMPASM
6529 fi
6530
6531 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6532
6533
6534 mkdir -p doc
6535 mkdir -p tests
6536 mkdir -p tests/api
6537 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6538
6539 print_config ARCH_   "$config_files" $ARCH_LIST
6540 print_config HAVE_   "$config_files" $HAVE_LIST
6541 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6542                                      $CONFIG_EXTRA      \
6543                                      $ALL_COMPONENTS    \
6544
6545 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6546 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6547
6548 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6549 cp_if_changed $TMPH config.h
6550 touch .config
6551
6552 enabled yasm && cp_if_changed $TMPASM config.asm
6553
6554 cat > $TMPH <<EOF
6555 /* Generated by ffconf */
6556 #ifndef AVUTIL_AVCONFIG_H
6557 #define AVUTIL_AVCONFIG_H
6558 EOF
6559
6560 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6561
6562 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6563
6564 cp_if_changed $TMPH libavutil/avconfig.h
6565
6566 if test -n "$WARNINGS"; then
6567     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6568     enabled fatal_warnings && exit 1
6569 fi
6570
6571 # build pkg-config files
6572
6573 lib_version(){
6574     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6575 }
6576
6577 pkgconfig_generate(){
6578     name=$1
6579     shortname=${name#lib}${build_suffix}
6580     comment=$2
6581     version=$3
6582     libs=$4
6583     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6584     requires=${requires%, }
6585     enabled ${name#lib} || return 0
6586     mkdir -p $name
6587     cat <<EOF > $name/$name${build_suffix}.pc
6588 prefix=$prefix
6589 exec_prefix=\${prefix}
6590 libdir=$libdir
6591 includedir=$incdir
6592
6593 Name: $name
6594 Description: $comment
6595 Version: $version
6596 Requires: $(enabled shared || echo $requires)
6597 Requires.private: $(enabled shared && echo $requires)
6598 Conflicts:
6599 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6600 Libs.private: $(enabled shared && echo $libs)
6601 Cflags: -I\${includedir}
6602 EOF
6603
6604 mkdir -p doc/examples/pc-uninstalled
6605 includedir=${source_path}
6606 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6607     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6608 prefix=
6609 exec_prefix=
6610 libdir=\${pcfiledir}/../../../$name
6611 includedir=${includedir}
6612
6613 Name: $name
6614 Description: $comment
6615 Version: $version
6616 Requires: $requires
6617 Conflicts:
6618 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6619 Cflags: -I\${includedir}
6620 EOF
6621 }
6622
6623 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6624 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6625 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6626 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6627 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6628 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6629 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6630 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6631 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"