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 Individual component options:
 153   --disable-everything     disable all components listed below
 154   --disable-encoder=NAME   disable encoder NAME
 155   --enable-encoder=NAME    enable encoder NAME
 156   --disable-encoders       disable all encoders
 157   --disable-decoder=NAME   disable decoder NAME
 158   --enable-decoder=NAME    enable decoder NAME
 159   --disable-decoders       disable all decoders
 160   --disable-hwaccel=NAME   disable hwaccel NAME
 161   --enable-hwaccel=NAME    enable hwaccel NAME
 162   --disable-hwaccels       disable all hwaccels
 163   --disable-muxer=NAME     disable muxer NAME
 164   --enable-muxer=NAME      enable muxer NAME
 165   --disable-muxers         disable all muxers
 166   --disable-demuxer=NAME   disable demuxer NAME
 167   --enable-demuxer=NAME    enable demuxer NAME
 168   --disable-demuxers       disable all demuxers
 169   --enable-parser=NAME     enable parser NAME
 170   --disable-parser=NAME    disable parser NAME
 171   --disable-parsers        disable all parsers
 172   --enable-bsf=NAME        enable bitstream filter NAME
 173   --disable-bsf=NAME       disable bitstream filter NAME
 174   --disable-bsfs           disable all bitstream filters
 175   --enable-protocol=NAME   enable protocol NAME
 176   --disable-protocol=NAME  disable protocol NAME
 177   --disable-protocols      disable all protocols
 178   --enable-indev=NAME      enable input device NAME
 179   --disable-indev=NAME     disable input device NAME
 180   --disable-indevs         disable input devices
 181   --enable-outdev=NAME     enable output device NAME
 182   --disable-outdev=NAME    disable output device NAME
 183   --disable-outdevs        disable output devices
 184   --disable-devices        disable all devices
 185   --enable-filter=NAME     enable filter NAME
 186   --disable-filter=NAME    disable filter NAME
 187   --disable-filters        disable all filters
 188
 189 External library support:
 190
 191   Using any of the following switches will allow FFmpeg to link to the
 192   corresponding external library. All the components depending on that library
 193   will become enabled, if all their other dependencies are met and they are not
 194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 195   libwavpack and allow the libwavpack encoder to be built, unless it is
 196   specifically disabled with --disable-encoder=libwavpack.
 197
 198   Note that only the system libraries are auto-detected. All the other external
 199   libraries must be explicitly enabled.
 200
 201   Also note that the following help text describes the purpose of the libraries
 202   themselves, not all their features will necessarily be usable by FFmpeg.
 203
 204   --enable-avisynth        enable reading of AviSynth script files [no]
 205   --disable-bzlib          disable bzlib [autodetect]
 206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 207   --enable-frei0r          enable frei0r video filtering [no]
 208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 209                            if openssl, librtmp or gmp is not used [no]
 210   --enable-gmp             enable gmp, needed for rtmp(t)e support
 211                            if openssl or librtmp is not used [no]
 212   --enable-gnutls          enable gnutls, needed for https support
 213                            if openssl is not used [no]
 214   --disable-iconv          disable iconv [autodetect]
 215   --enable-jni             enable JNI support [no]
 216   --enable-ladspa          enable LADSPA audio filtering [no]
 217   --enable-libass          enable libass subtitles rendering,
 218                            needed for subtitles and ass filter [no]
 219   --enable-libbluray       enable BluRay reading using libbluray [no]
 220   --enable-libbs2b         enable bs2b DSP library [no]
 221   --enable-libcaca         enable textual display using libcaca [no]
 222   --enable-libcelt         enable CELT decoding via libcelt [no]
 223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 225                            and libraw1394 [no]
 226   --enable-libebur128      enable libebur128 for EBU R128 measurement,
 227                            needed for loudnorm filter [no]
 228   --enable-libfaac         enable AAC encoding via libfaac [no]
 229   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 230   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 231   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 232   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 233   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 234   --enable-libgme          enable Game Music Emu via libgme [no]
 235   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 236   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 237   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 238   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 239   --enable-libmodplug      enable ModPlug via libmodplug [no]
 240   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 241   --enable-libnut          enable NUT (de)muxing via libnut,
 242                            native (de)muxer exists [no]
 243   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 244   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 245   --enable-libopencv       enable video filtering via libopencv [no]
 246   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 247   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 248   --enable-libopus         enable Opus de/encoding via libopus [no]
 249   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 250   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 251   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 252   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 253   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 254   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 255   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 256   --enable-libsoxr         enable Include libsoxr resampling [no]
 257   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 258   --enable-libssh          enable SFTP protocol via libssh [no]
 259   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 260   --enable-libtheora       enable Theora encoding via libtheora [no]
 261   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 262   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 263   --enable-libvidstab      enable video stabilization using vid.stab [no]
 264   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 265   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 266                            native implementation exists [no]
 267   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 268   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 269   --enable-libwebp         enable WebP encoding via libwebp [no]
 270   --enable-libx264         enable H.264 encoding via x264 [no]
 271   --enable-libx265         enable HEVC encoding via x265 [no]
 272   --enable-libxavs         enable AVS encoding via xavs [no]
 273   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 274   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 275   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 276   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 277   --enable-libxvid         enable Xvid encoding via xvidcore,
 278                            native MPEG-4/Xvid encoder exists [no]
 279   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 280   --enable-libzmq          enable message passing via libzmq [no]
 281   --enable-libzvbi         enable teletext support via libzvbi [no]
 282   --disable-lzma           disable lzma [autodetect]
 283   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 284   --enable-mediacodec      enable Android MediaCodec support [no]
 285   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 286   --enable-openal          enable OpenAL 1.1 capture support [no]
 287   --enable-opencl          enable OpenCL code
 288   --enable-opengl          enable OpenGL rendering [no]
 289   --enable-openssl         enable openssl, needed for https support
 290                            if gnutls is not used [no]
 291   --disable-schannel       disable SChannel SSP, needed for TLS support on
 292                            Windows if openssl and gnutls are not used [autodetect]
 293   --disable-sdl            disable sdl [autodetect]
 294   --disable-securetransport disable Secure Transport, needed for TLS support
 295                            on OSX if openssl and gnutls are not used [autodetect]
 296   --enable-x11grab         enable X11 grabbing (legacy) [no]
 297   --disable-xlib           disable xlib [autodetect]
 298   --disable-zlib           disable zlib [autodetect]
 299
 300   The following libraries provide various hardware acceleration features:
 301   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 302   --enable-cuda            enable dynamically linked Nvidia CUDA code [no]
 303   --enable-cuvid           enable Nvidia CUVID support [autodetect]
 304   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 305   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 306   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 307   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 308   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 309   --enable-nvenc           enable Nvidia video encoding code [no]
 310   --enable-omx             enable OpenMAX IL code [no]
 311   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 312   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 313   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
 314   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 315   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 316
 317 Toolchain options:
 318   --arch=ARCH              select architecture [$arch]
 319   --cpu=CPU                select the minimum required CPU (affects
 320                            instruction selection, may crash on older CPUs)
 321   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 322   --progs-suffix=SUFFIX    program name suffix []
 323   --enable-cross-compile   assume a cross-compiler is used
 324   --sysroot=PATH           root of cross-build tree
 325   --sysinclude=PATH        location of cross-build system headers
 326   --target-os=OS           compiler targets OS [$target_os]
 327   --target-exec=CMD        command to run executables on target
 328   --target-path=DIR        path to view of build directory on target
 329   --target-samples=DIR     path to samples directory on target
 330   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 331   --toolchain=NAME         set tool defaults according to NAME
 332   --nm=NM                  use nm tool NM [$nm_default]
 333   --ar=AR                  use archive tool AR [$ar_default]
 334   --as=AS                  use assembler AS [$as_default]
 335   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 336   --strip=STRIP            use strip tool STRIP [$strip_default]
 337   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 338   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 339   --cc=CC                  use C compiler CC [$cc_default]
 340   --cxx=CXX                use C compiler CXX [$cxx_default]
 341   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 342   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 343   --ld=LD                  use linker LD [$ld_default]
 344   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 345   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 346   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 347   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 348   --host-cc=HOSTCC         use host C compiler HOSTCC
 349   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 350   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 351   --host-ld=HOSTLD         use host linker HOSTLD
 352   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 353   --host-libs=HLIBS        use libs HLIBS when linking for host
 354   --host-os=OS             compiler host OS [$target_os]
 355   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 356   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 357   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 358   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 359   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 360   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 361   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 362   --extra-version=STRING   version string suffix []
 363   --optflags=OPTFLAGS      override optimization-related compiler flags
 364   --build-suffix=SUFFIX    library name suffix []
 365   --enable-pic             build position-independent code
 366   --enable-thumb           compile for Thumb instruction set
 367   --enable-lto             use link-time optimization
 368   --env="ENV=override"     override the environment variables
 369
 370 Advanced options (experts only):
 371   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 372   --custom-allocator=NAME  use a supported custom allocator
 373   --disable-symver         disable symbol versioning
 374   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 375   --disable-safe-bitstream-reader
 376                            disable buffer boundary checking in bitreaders
 377                            (faster, but may crash)
 378   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 379   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 380
 381 Optimization options (experts only):
 382   --disable-asm            disable all assembly optimizations
 383   --disable-altivec        disable AltiVec optimizations
 384   --disable-vsx            disable VSX optimizations
 385   --disable-power8         disable POWER8 optimizations
 386   --disable-amd3dnow       disable 3DNow! optimizations
 387   --disable-amd3dnowext    disable 3DNow! extended optimizations
 388   --disable-mmx            disable MMX optimizations
 389   --disable-mmxext         disable MMXEXT optimizations
 390   --disable-sse            disable SSE optimizations
 391   --disable-sse2           disable SSE2 optimizations
 392   --disable-sse3           disable SSE3 optimizations
 393   --disable-ssse3          disable SSSE3 optimizations
 394   --disable-sse4           disable SSE4 optimizations
 395   --disable-sse42          disable SSE4.2 optimizations
 396   --disable-avx            disable AVX optimizations
 397   --disable-xop            disable XOP optimizations
 398   --disable-fma3           disable FMA3 optimizations
 399   --disable-fma4           disable FMA4 optimizations
 400   --disable-avx2           disable AVX2 optimizations
 401   --disable-aesni          disable AESNI optimizations
 402   --disable-armv5te        disable armv5te optimizations
 403   --disable-armv6          disable armv6 optimizations
 404   --disable-armv6t2        disable armv6t2 optimizations
 405   --disable-vfp            disable VFP optimizations
 406   --disable-neon           disable NEON optimizations
 407   --disable-inline-asm     disable use of inline assembly
 408   --disable-yasm           disable use of nasm/yasm assembly
 409   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 410   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 411   --disable-msa            disable MSA optimizations
 412   --disable-mipsfpu        disable floating point MIPS optimizations
 413   --disable-mmi            disable Loongson SIMD optimizations
 414   --disable-fast-unaligned consider unaligned accesses slow
 415
 416 Developer options (useful when working on FFmpeg itself):
 417   --disable-debug          disable debugging symbols
 418   --enable-debug=LEVEL     set the debug level [$debuglevel]
 419   --disable-optimizations  disable compiler optimizations
 420   --enable-extra-warnings  enable more compiler warnings
 421   --disable-stripping      disable stripping of executables and shared libraries
 422   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 423                            2 causes a slowdown at runtime.
 424   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 425   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 426                            leaks and errors, using the specified valgrind binary.
 427                            Cannot be combined with --target-exec
 428   --enable-ftrapv          Trap arithmetic overflows
 429   --samples=PATH           location of test samples for FATE, if not set use
 430                            \$FATE_SAMPLES at make invocation time.
 431   --enable-neon-clobber-test check NEON registers for clobbering (should be
 432                            used only for debugging purposes)
 433   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 434                            should be used only for debugging purposes)
 435   --enable-random          randomly enable/disable components
 436   --disable-random
 437   --enable-random=LIST     randomly enable/disable specific components or
 438   --disable-random=LIST    component groups. LIST is a comma-separated list
 439                            of NAME[:PROB] entries where NAME is a component
 440                            (group) and PROB the probability associated with
 441                            NAME (default 0.5).
 442   --random-seed=VALUE      seed value for --enable/disable-random
 443   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 444                            (only applies to --disable-optimizations builds)
 445
 446 NOTE: Object files are built at the place where configure is launched.
 447 EOF
 448   exit 0
 449 }
 450
 451 quotes='""'
 452 if test -t 1 && which tput >/dev/null 2>&1; then
 453     ncolors=$(tput colors)
 454     if test -n "$ncolors" && test $ncolors -ge 8; then
 455         bold_color=$(tput bold)
 456         warn_color=$(tput setaf 3)
 457         error_color=$(tput setaf 1)
 458         reset_color=$(tput sgr0)
 459     fi
 460     # 72 used instead of 80 since that's the default of pr
 461     ncols=$(tput cols)
 462 fi
 463 : ${ncols:=72}
 464
 465 log(){
 466     echo "$@" >> $logfile
 467 }
 468
 469 log_file(){
 470     log BEGIN $1
 471     pr -n -t $1 >> $logfile
 472     log END $1
 473 }
 474
 475 warn(){
 476     log "WARNING: $*"
 477     WARNINGS="${WARNINGS}WARNING: $*\n"
 478 }
 479
 480 die(){
 481     log "$@"
 482     echo "$error_color$bold_color$@$reset_color"
 483     cat <<EOF
 484
 485 If you think configure made a mistake, make sure you are using the latest
 486 version from Git.  If the latest version fails, report the problem to the
 487 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 488 EOF
 489     if disabled logging; then
 490         cat <<EOF
 491 Rerun configure with logging enabled (do not use --disable-logging), and
 492 include the log this produces with your report.
 493 EOF
 494     else
 495         cat <<EOF
 496 Include the log file "$logfile" produced by configure as this will help
 497 solve the problem.
 498 EOF
 499     fi
 500     exit 1
 501 }
 502
 503 # Avoid locale weirdness, besides we really just want to translate ASCII.
 504 toupper(){
 505     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 506 }
 507
 508 tolower(){
 509     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 510 }
 511
 512 c_escape(){
 513     echo "$*" | sed 's/["\\]/\\\0/g'
 514 }
 515
 516 sh_quote(){
 517     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 518     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 519     echo "$v"
 520 }
 521
 522 cleanws(){
 523     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 524 }
 525
 526 filter(){
 527     pat=$1
 528     shift
 529     for v; do
 530         eval "case $v in $pat) echo $v ;; esac"
 531     done
 532 }
 533
 534 filter_out(){
 535     pat=$1
 536     shift
 537     for v; do
 538         eval "case $v in $pat) ;; *) echo $v ;; esac"
 539     done
 540 }
 541
 542 map(){
 543     m=$1
 544     shift
 545     for v; do eval $m; done
 546 }
 547
 548 add_suffix(){
 549     suffix=$1
 550     shift
 551     for v; do echo ${v}${suffix}; done
 552 }
 553
 554 set_all(){
 555     value=$1
 556     shift
 557     for var in $*; do
 558         eval $var=$value
 559     done
 560 }
 561
 562 set_weak(){
 563     value=$1
 564     shift
 565     for var; do
 566         eval : \${$var:=$value}
 567     done
 568 }
 569
 570 sanitize_var_name(){
 571     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 572 }
 573
 574 set_safe(){
 575     var=$1
 576     shift
 577     eval $(sanitize_var_name "$var")='$*'
 578 }
 579
 580 get_safe(){
 581     eval echo \$$(sanitize_var_name "$1")
 582 }
 583
 584 pushvar(){
 585     for pvar in $*; do
 586         eval level=\${${pvar}_level:=0}
 587         eval ${pvar}_${level}="\$$pvar"
 588         eval ${pvar}_level=$(($level+1))
 589     done
 590 }
 591
 592 popvar(){
 593     for pvar in $*; do
 594         eval level=\${${pvar}_level:-0}
 595         test $level = 0 && continue
 596         eval level=$(($level-1))
 597         eval $pvar="\${${pvar}_${level}}"
 598         eval ${pvar}_level=$level
 599         eval unset ${pvar}_${level}
 600     done
 601 }
 602
 603 enable(){
 604     set_all yes $*
 605 }
 606
 607 disable(){
 608     set_all no $*
 609 }
 610
 611 enable_weak(){
 612     set_weak yes $*
 613 }
 614
 615 disable_weak(){
 616     set_weak no $*
 617 }
 618
 619 enable_safe(){
 620     for var; do
 621         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 622     done
 623 }
 624
 625 disable_safe(){
 626     for var; do
 627         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 628     done
 629 }
 630
 631 do_enable_deep(){
 632     for var; do
 633         enabled $var && continue
 634         eval sel="\$${var}_select"
 635         eval sgs="\$${var}_suggest"
 636         pushvar var sgs
 637         enable_deep $sel
 638         popvar sgs
 639         enable_deep_weak $sgs
 640         popvar var
 641     done
 642 }
 643
 644 enable_deep(){
 645     do_enable_deep $*
 646     enable $*
 647 }
 648
 649 enable_deep_weak(){
 650     for var; do
 651         disabled $var && continue
 652         pushvar var
 653         do_enable_deep $var
 654         popvar var
 655         enable_weak $var
 656     done
 657 }
 658
 659 enabled(){
 660     test "${1#!}" = "$1" && op='=' || op=!=
 661     eval test "x\$${1#!}" $op "xyes"
 662 }
 663
 664 disabled(){
 665     test "${1#!}" = "$1" && op='=' || op=!=
 666     eval test "x\$${1#!}" $op "xno"
 667 }
 668
 669 enabled_all(){
 670     for opt; do
 671         enabled $opt || return 1
 672     done
 673 }
 674
 675 disabled_all(){
 676     for opt; do
 677         disabled $opt || return 1
 678     done
 679 }
 680
 681 enabled_any(){
 682     for opt; do
 683         enabled $opt && return 0
 684     done
 685 }
 686
 687 disabled_any(){
 688     for opt; do
 689         disabled $opt && return 0
 690     done
 691     return 1
 692 }
 693
 694 set_default(){
 695     for opt; do
 696         eval : \${$opt:=\$${opt}_default}
 697     done
 698 }
 699
 700 is_in(){
 701     value=$1
 702     shift
 703     for var in $*; do
 704         [ $var = $value ] && return 0
 705     done
 706     return 1
 707 }
 708
 709 do_check_deps(){
 710     for cfg; do
 711         cfg="${cfg#!}"
 712         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 713         disabled ${cfg}_checking && continue
 714         enable ${cfg}_checking
 715         append allopts $cfg
 716
 717         eval dep_all="\$${cfg}_deps"
 718         eval dep_any="\$${cfg}_deps_any"
 719         eval dep_sel="\$${cfg}_select"
 720         eval dep_sgs="\$${cfg}_suggest"
 721         eval dep_ifa="\$${cfg}_if"
 722         eval dep_ifn="\$${cfg}_if_any"
 723
 724         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 725         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 726         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 727
 728         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 729         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 730         enabled_all  $dep_all || disable $cfg
 731         enabled_any  $dep_any || disable $cfg
 732         disabled_any $dep_sel && disable $cfg
 733
 734         if enabled $cfg; then
 735             enable_deep $dep_sel
 736             enable_deep_weak $dep_sgs
 737         fi
 738
 739         disable ${cfg}_checking
 740     done
 741 }
 742
 743 check_deps(){
 744     unset allopts
 745
 746     do_check_deps "$@"
 747
 748     for cfg in $allopts; do
 749         enabled $cfg || continue
 750         eval dep_extralibs="\$${cfg}_extralibs"
 751         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 752     done
 753 }
 754
 755 print_config(){
 756     pfx=$1
 757     files=$2
 758     shift 2
 759     map 'eval echo "$v \${$v:-no}"' "$@" |
 760     awk "BEGIN { split(\"$files\", files) }
 761         {
 762             c = \"$pfx\" toupper(\$1);
 763             v = \$2;
 764             sub(/yes/, 1, v);
 765             sub(/no/,  0, v);
 766             for (f in files) {
 767                 file = files[f];
 768                 if (file ~ /\\.h\$/) {
 769                     printf(\"#define %s %d\\n\", c, v) >>file;
 770                 } else if (file ~ /\\.asm\$/) {
 771                     printf(\"%%define %s %d\\n\", c, v) >>file;
 772                 } else if (file ~ /\\.mak\$/) {
 773                     n = -v ? \"\" : \"!\";
 774                     printf(\"%s%s=yes\\n\", n, c) >>file;
 775                 } else if (file ~ /\\.texi\$/) {
 776                     pre = -v ? \"\" : \"@c \";
 777                     yesno = \$2;
 778                     c2 = tolower(c);
 779                     gsub(/_/, \"-\", c2);
 780                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 781                 }
 782             }
 783         }"
 784 }
 785
 786 print_enabled(){
 787     suf=$1
 788     shift
 789     for v; do
 790         enabled $v && printf "%s\n" ${v%$suf}
 791     done
 792 }
 793
 794 append(){
 795     var=$1
 796     shift
 797     eval "$var=\"\$$var $*\""
 798 }
 799
 800 prepend(){
 801     var=$1
 802     shift
 803     eval "$var=\"$* \$$var\""
 804 }
 805
 806 unique(){
 807     var=$1
 808     uniq_list=""
 809     for tok in $(eval echo \$$var); do
 810         uniq_list="$(filter_out $tok $uniq_list) $tok"
 811     done
 812     eval "$var=\"${uniq_list}\""
 813 }
 814
 815 add_cppflags(){
 816     append CPPFLAGS "$@"
 817 }
 818
 819 add_cflags(){
 820     append CFLAGS $($cflags_filter "$@")
 821 }
 822
 823 add_cxxflags(){
 824     append CXXFLAGS $($cflags_filter "$@")
 825 }
 826
 827 add_asflags(){
 828     append ASFLAGS $($asflags_filter "$@")
 829 }
 830
 831 add_objcflags(){
 832     append OBJCFLAGS $($objcflags_filter "$@")
 833 }
 834
 835 add_ldflags(){
 836     append LDFLAGS $($ldflags_filter "$@")
 837 }
 838
 839 add_ldexeflags(){
 840     append LDEXEFLAGS $($ldflags_filter "$@")
 841 }
 842
 843 add_ldlibflags(){
 844     append LDLIBFLAGS $($ldflags_filter "$@")
 845 }
 846
 847 add_stripflags(){
 848     append ASMSTRIPFLAGS "$@"
 849 }
 850
 851 add_extralibs(){
 852     prepend extralibs $($ldflags_filter "$@")
 853 }
 854
 855 add_host_cppflags(){
 856     append host_cppflags "$@"
 857 }
 858
 859 add_host_cflags(){
 860     append host_cflags $($host_cflags_filter "$@")
 861 }
 862
 863 add_host_ldflags(){
 864     append host_ldflags $($host_ldflags_filter "$@")
 865 }
 866
 867 add_compat(){
 868     append compat_objs $1
 869     shift
 870     map 'add_cppflags -D$v' "$@"
 871 }
 872
 873 check_cmd(){
 874     log "$@"
 875     "$@" >> $logfile 2>&1
 876 }
 877
 878 check_stat(){
 879     log check_stat "$@"
 880     stat "$1" >> $logfile 2>&1
 881 }
 882
 883 cc_o(){
 884     eval printf '%s\\n' $CC_O
 885 }
 886
 887 cc_e(){
 888     eval printf '%s\\n' $CC_E
 889 }
 890
 891 check_cc(){
 892     log check_cc "$@"
 893     cat > $TMPC
 894     log_file $TMPC
 895     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 896 }
 897
 898 check_cxx(){
 899     log check_cxx "$@"
 900     cat > $TMPCPP
 901     log_file $TMPCPP
 902     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 903 }
 904
 905 check_objcc(){
 906     log check_objcc "$@"
 907     cat > $TMPM
 908     log_file $TMPM
 909     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 910 }
 911
 912 check_cpp(){
 913     log check_cpp "$@"
 914     cat > $TMPC
 915     log_file $TMPC
 916     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 917 }
 918
 919 as_o(){
 920     eval printf '%s\\n' $AS_O
 921 }
 922
 923 check_as(){
 924     log check_as "$@"
 925     cat > $TMPS
 926     log_file $TMPS
 927     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 928 }
 929
 930 check_inline_asm(){
 931     log check_inline_asm "$@"
 932     name="$1"
 933     code="$2"
 934     shift 2
 935     disable $name
 936     check_cc "$@" <<EOF && enable $name
 937 void foo(void){ __asm__ volatile($code); }
 938 EOF
 939 }
 940
 941 check_inline_asm_flags(){
 942     log check_inline_asm_flags "$@"
 943     name="$1"
 944     code="$2"
 945     flags=''
 946     shift 2
 947     while [ "$1" != "" ]; do
 948       append flags $1
 949       shift
 950     done;
 951     disable $name
 952     cat > $TMPC <<EOF
 953 void foo(void){ __asm__ volatile($code); }
 954 EOF
 955     log_file $TMPC
 956     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 957     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 958 }
 959
 960 check_insn(){
 961     log check_insn "$@"
 962     check_inline_asm ${1}_inline "\"$2\""
 963     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 964 }
 965
 966 check_yasm(){
 967     log check_yasm "$@"
 968     echo "$1" > $TMPS
 969     log_file $TMPS
 970     shift 1
 971     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 972 }
 973
 974 ld_o(){
 975     eval printf '%s\\n' $LD_O
 976 }
 977
 978 check_ld(){
 979     log check_ld "$@"
 980     type=$1
 981     shift 1
 982     flags=$(filter_out '-l*|*.so' $@)
 983     libs=$(filter '-l*|*.so' $@)
 984     check_$type $($cflags_filter $flags) || return
 985     flags=$($ldflags_filter $flags)
 986     libs=$($ldflags_filter $libs)
 987     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 988 }
 989
 990 print_include(){
 991     hdr=$1
 992     test "${hdr%.h}" = "${hdr}" &&
 993         echo "#include $hdr"    ||
 994         echo "#include <$hdr>"
 995 }
 996
 997 check_code(){
 998     log check_code "$@"
 999     check=$1
1000     headers=$2
1001     code=$3
1002     shift 3
1003     {
1004         for hdr in $headers; do
1005             print_include $hdr
1006         done
1007         echo "int main(void) { $code; return 0; }"
1008     } | check_$check "$@"
1009 }
1010
1011 check_cppflags(){
1012     log check_cppflags "$@"
1013     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1014 int x;
1015 EOF
1016 }
1017
1018 test_cflags(){
1019     log test_cflags "$@"
1020     set -- $($cflags_filter "$@")
1021     check_cc "$@" <<EOF
1022 int x;
1023 EOF
1024 }
1025
1026 check_cflags(){
1027     log check_cflags "$@"
1028     test_cflags "$@" && add_cflags "$@"
1029 }
1030
1031 check_cxxflags(){
1032     log check_cxxflags "$@"
1033     set -- $($cflags_filter "$@")
1034     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1035 int x;
1036 EOF
1037 }
1038
1039 test_objcflags(){
1040     log test_cflags "$@"
1041     set -- $($cflags_filter "$@")
1042     check_objcc "$@" <<EOF
1043 int x;
1044 EOF
1045 }
1046
1047 check_objcflags(){
1048     log check_cflags "$@"
1049     test_objcflags "$@" && add_objcflags "$@"
1050 }
1051
1052 test_ldflags(){
1053     log test_ldflags "$@"
1054     check_ld "cc" "$@" <<EOF
1055 int main(void){ return 0; }
1056 EOF
1057 }
1058
1059 check_ldflags(){
1060     log check_ldflags "$@"
1061     test_ldflags "$@" && add_ldflags "$@"
1062 }
1063
1064 test_stripflags(){
1065     log test_stripflags "$@"
1066     # call check_cc to get a fresh TMPO
1067     check_cc <<EOF
1068 int main(void) { return 0; }
1069 EOF
1070     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1071 }
1072
1073 check_stripflags(){
1074     log check_stripflags "$@"
1075     test_stripflags "$@" && add_stripflags "$@"
1076 }
1077
1078 check_header(){
1079     log check_header "$@"
1080     header=$1
1081     shift
1082     disable_safe $header
1083     check_cpp "$@" <<EOF && enable_safe $header
1084 #include <$header>
1085 int x;
1086 EOF
1087 }
1088
1089 check_header_objcc(){
1090     log check_header_objcc "$@"
1091     rm -f -- "$TMPO"
1092     header=$1
1093     shift
1094     disable_safe $header
1095     {
1096        echo "#include <$header>"
1097        echo "int main(void) { return 0; }"
1098     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1099 }
1100
1101 check_func(){
1102     log check_func "$@"
1103     func=$1
1104     shift
1105     disable $func
1106     check_ld "cc" "$@" <<EOF && enable $func
1107 extern int $func();
1108 int main(void){ $func(); }
1109 EOF
1110 }
1111
1112 check_complexfunc(){
1113     log check_complexfunc "$@"
1114     func=$1
1115     narg=$2
1116     shift 2
1117     test $narg = 2 && args="f, g" || args="f * I"
1118     disable $func
1119     check_ld "cc" "$@" <<EOF && enable $func
1120 #include <complex.h>
1121 #include <math.h>
1122 float foo(complex float f, complex float g) { return $func($args); }
1123 int main(void){ return (int) foo; }
1124 EOF
1125 }
1126
1127 check_mathfunc(){
1128     log check_mathfunc "$@"
1129     func=$1
1130     narg=$2
1131     shift 2
1132     test $narg = 2 && args="f, g" || args="f"
1133     disable $func
1134     check_ld "cc" "$@" <<EOF && enable $func
1135 #include <math.h>
1136 float foo(float f, float g) { return $func($args); }
1137 int main(void){ return (int) foo; }
1138 EOF
1139 }
1140
1141 check_func_headers(){
1142     log check_func_headers "$@"
1143     headers=$1
1144     funcs=$2
1145     shift 2
1146     {
1147         for hdr in $headers; do
1148             print_include $hdr
1149         done
1150         for func in $funcs; do
1151             echo "long check_$func(void) { return (long) $func; }"
1152         done
1153         echo "int main(void) { return 0; }"
1154     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1155 }
1156
1157 check_class_headers_cpp(){
1158     log check_class_headers_cpp "$@"
1159     headers=$1
1160     classes=$2
1161     shift 2
1162     {
1163         for hdr in $headers; do
1164             echo "#include <$hdr>"
1165         done
1166         echo "int main(void) { "
1167         i=1
1168         for class in $classes; do
1169             echo "$class obj$i;"
1170             i=$(expr $i + 1)
1171         done
1172         echo "return 0; }"
1173     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1174 }
1175
1176 check_cpp_condition(){
1177     log check_cpp_condition "$@"
1178     header=$1
1179     condition=$2
1180     shift 2
1181     check_cpp "$@" <<EOF
1182 #include <$header>
1183 #if !($condition)
1184 #error "unsatisfied condition: $condition"
1185 #endif
1186 EOF
1187 }
1188
1189 check_lib(){
1190     log check_lib "$@"
1191     header="$1"
1192     func="$2"
1193     shift 2
1194     check_header $header && check_func $func "$@" && add_extralibs "$@"
1195 }
1196
1197 check_lib2(){
1198     log check_lib2 "$@"
1199     headers="$1"
1200     funcs="$2"
1201     shift 2
1202     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1203 }
1204
1205 check_lib_cpp(){
1206     log check_lib_cpp "$@"
1207     headers="$1"
1208     classes="$2"
1209     shift 2
1210     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1211 }
1212
1213 check_pkg_config(){
1214     log check_pkg_config "$@"
1215     pkgandversion="$1"
1216     pkg="${1%% *}"
1217     headers="$2"
1218     funcs="$3"
1219     shift 3
1220     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1221     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1222     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1223     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1224         set_safe "${pkg}_cflags" $pkg_cflags   &&
1225         set_safe "${pkg}_libs"   $pkg_libs
1226 }
1227
1228 check_exec(){
1229     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1230 }
1231
1232 check_exec_crash(){
1233     code=$(cat)
1234
1235     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1236     # are safe but may not be available everywhere.  Thus we use
1237     # raise(SIGTERM) instead.  The check is run in a subshell so we
1238     # can redirect the "Terminated" message from the shell.  SIGBUS
1239     # is not defined by standard C so it is used conditionally.
1240
1241     (check_exec "$@") >> $logfile 2>&1 <<EOF
1242 #include <signal.h>
1243 static void sighandler(int sig){
1244     raise(SIGTERM);
1245 }
1246 int foo(void){
1247     $code
1248 }
1249 int (*func_ptr)(void) = foo;
1250 int main(void){
1251     signal(SIGILL, sighandler);
1252     signal(SIGFPE, sighandler);
1253     signal(SIGSEGV, sighandler);
1254 #ifdef SIGBUS
1255     signal(SIGBUS, sighandler);
1256 #endif
1257     return func_ptr();
1258 }
1259 EOF
1260 }
1261
1262 check_type(){
1263     log check_type "$@"
1264     headers=$1
1265     type=$2
1266     shift 2
1267     disable_safe "$type"
1268     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1269 }
1270
1271 check_struct(){
1272     log check_struct "$@"
1273     headers=$1
1274     struct=$2
1275     member=$3
1276     shift 3
1277     disable_safe "${struct}_${member}"
1278     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1279         enable_safe "${struct}_${member}"
1280 }
1281
1282 check_builtin(){
1283     log check_builtin "$@"
1284     name=$1
1285     headers=$2
1286     builtin=$3
1287     shift 3
1288     disable "$name"
1289     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1290 }
1291
1292 check_compile_assert(){
1293     log check_compile_assert "$@"
1294     name=$1
1295     headers=$2
1296     condition=$3
1297     shift 3
1298     disable "$name"
1299     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1300 }
1301
1302 require(){
1303     name="$1"
1304     header="$2"
1305     func="$3"
1306     shift 3
1307     check_lib $header $func "$@" || die "ERROR: $name not found"
1308 }
1309
1310 require2(){
1311     name="$1"
1312     headers="$2"
1313     func="$3"
1314     shift 3
1315     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1316 }
1317
1318 require_cpp(){
1319     name="$1"
1320     headers="$2"
1321     classes="$3"
1322     shift 3
1323     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1324 }
1325
1326 use_pkg_config(){
1327     pkg="$1"
1328     check_pkg_config "$@" || return 1
1329     add_cflags    $(get_safe "${pkg}_cflags")
1330     add_extralibs $(get_safe "${pkg}_libs")
1331 }
1332
1333 require_pkg_config(){
1334     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1335 }
1336
1337 require_libfreetype(){
1338     log require_libfreetype "$@"
1339     pkg="freetype2"
1340     check_cmd $pkg_config --exists --print-errors $pkg \
1341       || die "ERROR: $pkg not found"
1342     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1343     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1344     {
1345         echo "#include <ft2build.h>"
1346         echo "#include FT_FREETYPE_H"
1347         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1348         echo "int main(void) { return 0; }"
1349     } | check_ld "cc" $pkg_cflags $pkg_libs \
1350       && set_safe "${pkg}_cflags" $pkg_cflags \
1351       && set_safe "${pkg}_libs"   $pkg_libs \
1352       || die "ERROR: $pkg not found"
1353     add_cflags    $(get_safe "${pkg}_cflags")
1354     add_extralibs $(get_safe "${pkg}_libs")
1355 }
1356
1357 hostcc_e(){
1358     eval printf '%s\\n' $HOSTCC_E
1359 }
1360
1361 hostcc_o(){
1362     eval printf '%s\\n' $HOSTCC_O
1363 }
1364
1365 check_host_cc(){
1366     log check_host_cc "$@"
1367     cat > $TMPC
1368     log_file $TMPC
1369     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1370 }
1371
1372 check_host_cpp(){
1373     log check_host_cpp "$@"
1374     cat > $TMPC
1375     log_file $TMPC
1376     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1377 }
1378
1379 check_host_cppflags(){
1380     log check_host_cppflags "$@"
1381     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1382 int x;
1383 EOF
1384 }
1385
1386 check_host_cflags(){
1387     log check_host_cflags "$@"
1388     set -- $($host_cflags_filter "$@")
1389     check_host_cc "$@" <<EOF && append host_cflags "$@"
1390 int x;
1391 EOF
1392 }
1393
1394 check_host_cpp_condition(){
1395     log check_host_cpp_condition "$@"
1396     header=$1
1397     condition=$2
1398     shift 2
1399     check_host_cpp "$@" <<EOF
1400 #include <$header>
1401 #if !($condition)
1402 #error "unsatisfied condition: $condition"
1403 #endif
1404 EOF
1405 }
1406
1407 cp_if_changed(){
1408     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1409     mkdir -p "$(dirname $2)"
1410     $cp_f "$1" "$2"
1411 }
1412
1413 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1414 # system-dependent things.
1415
1416 AVCODEC_COMPONENTS="
1417     bsfs
1418     decoders
1419     encoders
1420     hwaccels
1421     parsers
1422 "
1423
1424 AVDEVICE_COMPONENTS="
1425     indevs
1426     outdevs
1427 "
1428 AVFILTER_COMPONENTS="
1429     filters
1430 "
1431 AVFORMAT_COMPONENTS="
1432     demuxers
1433     muxers
1434     protocols
1435 "
1436
1437 AVRESAMPLE_COMPONENTS=""
1438 AVUTIL_COMPONENTS=""
1439
1440 COMPONENT_LIST="
1441     $AVCODEC_COMPONENTS
1442     $AVDEVICE_COMPONENTS
1443     $AVFILTER_COMPONENTS
1444     $AVFORMAT_COMPONENTS
1445     $AVRESAMPLE_COMPONENTS
1446     $AVUTIL_COMPONENTS
1447 "
1448
1449 EXAMPLE_LIST="
1450     avio_reading_example
1451     avio_dir_cmd_example
1452     decoding_encoding_example
1453     demuxing_decoding_example
1454     extract_mvs_example
1455     filter_audio_example
1456     filtering_audio_example
1457     filtering_video_example
1458     metadata_example
1459     muxing_example
1460     qsvdec_example
1461     remuxing_example
1462     resampling_audio_example
1463     scaling_video_example
1464     transcode_aac_example
1465     transcoding_example
1466 "
1467
1468 EXTERNAL_LIBRARY_LIST="
1469     avisynth
1470     bzlib
1471     chromaprint
1472     crystalhd
1473     decklink
1474     frei0r
1475     gcrypt
1476     gmp
1477     gnutls
1478     iconv
1479     jni
1480     ladspa
1481     libass
1482     libbluray
1483     libbs2b
1484     libcaca
1485     libcdio
1486     libcelt
1487     libdc1394
1488     libebur128
1489     libfaac
1490     libfdk_aac
1491     libflite
1492     libfontconfig
1493     libfreetype
1494     libfribidi
1495     libgme
1496     libgsm
1497     libiec61883
1498     libilbc
1499     libkvazaar
1500     libmodplug
1501     libmp3lame
1502     libnut
1503     libopencore_amrnb
1504     libopencore_amrwb
1505     libopencv
1506     libopenh264
1507     libopenjpeg
1508     libopus
1509     libpulse
1510     librtmp
1511     librubberband
1512     libschroedinger
1513     libshine
1514     libsmbclient
1515     libsnappy
1516     libsoxr
1517     libspeex
1518     libssh
1519     libtesseract
1520     libtheora
1521     libtwolame
1522     libv4l2
1523     libvidstab
1524     libvo_amrwbenc
1525     libvorbis
1526     libvpx
1527     libwavpack
1528     libwebp
1529     libx264
1530     libx265
1531     libxavs
1532     libxcb
1533     libxcb_shm
1534     libxcb_shape
1535     libxcb_xfixes
1536     libxvid
1537     libzimg
1538     libzmq
1539     libzvbi
1540     lzma
1541     mediacodec
1542     netcdf
1543     openal
1544     opencl
1545     opengl
1546     openssl
1547     schannel
1548     sdl
1549     securetransport
1550     videotoolbox
1551     x11grab
1552     xlib
1553     zlib
1554 "
1555
1556 HWACCEL_LIBRARY_LIST="
1557     audiotoolbox
1558     cuda
1559     cuvid
1560     d3d11va
1561     dxva2
1562     libmfx
1563     libnpp
1564     mmal
1565     nvenc
1566     omx
1567     vaapi
1568     vda
1569     vdpau
1570     videotoolbox_hwaccel
1571     xvmc
1572 "
1573
1574 DOCUMENT_LIST="
1575     doc
1576     htmlpages
1577     manpages
1578     podpages
1579     txtpages
1580 "
1581
1582 FEATURE_LIST="
1583     ftrapv
1584     gray
1585     hardcoded_tables
1586     omx_rpi
1587     runtime_cpudetect
1588     safe_bitstream_reader
1589     shared
1590     small
1591     static
1592     swscale_alpha
1593 "
1594
1595 LIBRARY_LIST="
1596     avcodec
1597     avdevice
1598     avfilter
1599     avformat
1600     avresample
1601     avutil
1602     postproc
1603     swresample
1604     swscale
1605 "
1606
1607 LICENSE_LIST="
1608     gpl
1609     nonfree
1610     version3
1611 "
1612
1613 PROGRAM_LIST="
1614     ffplay
1615     ffprobe
1616     ffserver
1617     ffmpeg
1618 "
1619
1620 SUBSYSTEM_LIST="
1621     dct
1622     dwt
1623     error_resilience
1624     faan
1625     fast_unaligned
1626     fft
1627     lsp
1628     lzo
1629     mdct
1630     pixelutils
1631     network
1632     rdft
1633 "
1634
1635 CONFIG_LIST="
1636     $COMPONENT_LIST
1637     $DOCUMENT_LIST
1638     $EXAMPLE_LIST
1639     $EXTERNAL_LIBRARY_LIST
1640     $HWACCEL_LIBRARY_LIST
1641     $FEATURE_LIST
1642     $LICENSE_LIST
1643     $LIBRARY_LIST
1644     $PROGRAM_LIST
1645     $SUBSYSTEM_LIST
1646     fontconfig
1647     incompatible_libav_abi
1648     memalign_hack
1649     memory_poisoning
1650     neon_clobber_test
1651     pic
1652     pod2man
1653     raise_major
1654     thumb
1655     valgrind_backtrace
1656     xmm_clobber_test
1657 "
1658
1659 THREADS_LIST="
1660     pthreads
1661     os2threads
1662     w32threads
1663 "
1664
1665 ATOMICS_LIST="
1666     atomics_gcc
1667     atomics_suncc
1668     atomics_win32
1669 "
1670
1671 ARCH_LIST="
1672     aarch64
1673     alpha
1674     arm
1675     avr32
1676     avr32_ap
1677     avr32_uc
1678     bfin
1679     ia64
1680     m68k
1681     mips
1682     mips64
1683     parisc
1684     ppc
1685     ppc64
1686     s390
1687     sh4
1688     sparc
1689     sparc64
1690     tilegx
1691     tilepro
1692     tomi
1693     x86
1694     x86_32
1695     x86_64
1696 "
1697
1698 ARCH_EXT_LIST_ARM="
1699     armv5te
1700     armv6
1701     armv6t2
1702     armv8
1703     neon
1704     vfp
1705     vfpv3
1706     setend
1707 "
1708
1709 ARCH_EXT_LIST_MIPS="
1710     mipsfpu
1711     mips32r2
1712     mips32r5
1713     mips64r2
1714     mips32r6
1715     mips64r6
1716     mipsdsp
1717     mipsdspr2
1718     msa
1719 "
1720
1721 ARCH_EXT_LIST_LOONGSON="
1722     loongson2
1723     loongson3
1724     mmi
1725 "
1726
1727 ARCH_EXT_LIST_X86_SIMD="
1728     aesni
1729     amd3dnow
1730     amd3dnowext
1731     avx
1732     avx2
1733     fma3
1734     fma4
1735     mmx
1736     mmxext
1737     sse
1738     sse2
1739     sse3
1740     sse4
1741     sse42
1742     ssse3
1743     xop
1744 "
1745
1746 ARCH_EXT_LIST_PPC="
1747     altivec
1748     dcbzl
1749     ldbrx
1750     power8
1751     ppc4xx
1752     vsx
1753 "
1754
1755 ARCH_EXT_LIST_X86="
1756     $ARCH_EXT_LIST_X86_SIMD
1757     cpunop
1758     i686
1759 "
1760
1761 ARCH_EXT_LIST="
1762     $ARCH_EXT_LIST_ARM
1763     $ARCH_EXT_LIST_PPC
1764     $ARCH_EXT_LIST_X86
1765     $ARCH_EXT_LIST_MIPS
1766     $ARCH_EXT_LIST_LOONGSON
1767 "
1768
1769 ARCH_FEATURES="
1770     aligned_stack
1771     fast_64bit
1772     fast_clz
1773     fast_cmov
1774     local_aligned_8
1775     local_aligned_16
1776     local_aligned_32
1777     simd_align_16
1778 "
1779
1780 BUILTIN_LIST="
1781     atomic_cas_ptr
1782     atomic_compare_exchange
1783     machine_rw_barrier
1784     MemoryBarrier
1785     mm_empty
1786     rdtsc
1787     sarestart
1788     sem_timedwait
1789     sync_val_compare_and_swap
1790 "
1791 HAVE_LIST_CMDLINE="
1792     inline_asm
1793     symver
1794     yasm
1795 "
1796
1797 HAVE_LIST_PUB="
1798     bigendian
1799     fast_unaligned
1800     incompatible_libav_abi
1801 "
1802
1803 HEADERS_LIST="
1804     alsa_asoundlib_h
1805     altivec_h
1806     arpa_inet_h
1807     asm_types_h
1808     cdio_paranoia_h
1809     cdio_paranoia_paranoia_h
1810     dispatch_dispatch_h
1811     dev_bktr_ioctl_bt848_h
1812     dev_bktr_ioctl_meteor_h
1813     dev_ic_bt8xx_h
1814     dev_video_bktr_ioctl_bt848_h
1815     dev_video_meteor_ioctl_meteor_h
1816     direct_h
1817     dirent_h
1818     dlfcn_h
1819     d3d11_h
1820     dxva_h
1821     ES2_gl_h
1822     gsm_h
1823     io_h
1824     mach_mach_time_h
1825     machine_ioctl_bt848_h
1826     machine_ioctl_meteor_h
1827     malloc_h
1828     opencv2_core_core_c_h
1829     openjpeg_2_1_openjpeg_h
1830     openjpeg_2_0_openjpeg_h
1831     openjpeg_1_5_openjpeg_h
1832     OpenGL_gl3_h
1833     poll_h
1834     sndio_h
1835     soundcard_h
1836     sys_mman_h
1837     sys_param_h
1838     sys_resource_h
1839     sys_select_h
1840     sys_soundcard_h
1841     sys_time_h
1842     sys_un_h
1843     sys_videoio_h
1844     termios_h
1845     udplite_h
1846     unistd_h
1847     valgrind_valgrind_h
1848     windows_h
1849     winsock2_h
1850 "
1851
1852 INTRINSICS_LIST="
1853     intrinsics_neon
1854 "
1855
1856 COMPLEX_FUNCS="
1857     cabs
1858     cexp
1859 "
1860
1861 MATH_FUNCS="
1862     atanf
1863     atan2f
1864     cbrt
1865     cbrtf
1866     copysign
1867     cosf
1868     erf
1869     exp2
1870     exp2f
1871     expf
1872     hypot
1873     isfinite
1874     isinf
1875     isnan
1876     ldexpf
1877     llrint
1878     llrintf
1879     log2
1880     log2f
1881     log10f
1882     lrint
1883     lrintf
1884     powf
1885     rint
1886     round
1887     roundf
1888     sinf
1889     trunc
1890     truncf
1891 "
1892
1893 SYSTEM_FUNCS="
1894     access
1895     aligned_malloc
1896     arc4random
1897     clock_gettime
1898     closesocket
1899     CommandLineToArgvW
1900     CoTaskMemFree
1901     CryptGenRandom
1902     dlopen
1903     fcntl
1904     flt_lim
1905     fork
1906     getaddrinfo
1907     gethrtime
1908     getopt
1909     GetProcessAffinityMask
1910     GetProcessMemoryInfo
1911     GetProcessTimes
1912     getrusage
1913     GetSystemTimeAsFileTime
1914     gettimeofday
1915     glob
1916     glXGetProcAddress
1917     gmtime_r
1918     inet_aton
1919     isatty
1920     jack_port_get_latency_range
1921     kbhit
1922     localtime_r
1923     lstat
1924     lzo1x_999_compress
1925     mach_absolute_time
1926     MapViewOfFile
1927     memalign
1928     mkstemp
1929     mmap
1930     mprotect
1931     nanosleep
1932     PeekNamedPipe
1933     posix_memalign
1934     pthread_cancel
1935     sched_getaffinity
1936     SetConsoleTextAttribute
1937     SetConsoleCtrlHandler
1938     setmode
1939     setrlimit
1940     Sleep
1941     strerror_r
1942     sysconf
1943     sysctl
1944     usleep
1945     UTGetOSTypeFromString
1946     VirtualAlloc
1947     wglGetProcAddress
1948 "
1949
1950 TOOLCHAIN_FEATURES="
1951     as_dn_directive
1952     as_func
1953     as_object_arch
1954     asm_mod_q
1955     attribute_may_alias
1956     attribute_packed
1957     ebp_available
1958     ebx_available
1959     gnu_as
1960     gnu_windres
1961     ibm_asm
1962     inline_asm_direct_symbol_refs
1963     inline_asm_labels
1964     inline_asm_nonlocal_labels
1965     pragma_deprecated
1966     rsync_contimeout
1967     symver_asm_label
1968     symver_gnu_asm
1969     vfp_args
1970     xform_asm
1971     xmm_clobbers
1972 "
1973
1974 TYPES_LIST="
1975     CONDITION_VARIABLE_Ptr
1976     socklen_t
1977     struct_addrinfo
1978     struct_group_source_req
1979     struct_ip_mreq_source
1980     struct_ipv6_mreq
1981     struct_msghdr_msg_flags
1982     struct_pollfd
1983     struct_rusage_ru_maxrss
1984     struct_sctp_event_subscribe
1985     struct_sockaddr_in6
1986     struct_sockaddr_sa_len
1987     struct_sockaddr_storage
1988     struct_stat_st_mtim_tv_nsec
1989     struct_v4l2_frmivalenum_discrete
1990 "
1991
1992 HAVE_LIST="
1993     $ARCH_EXT_LIST
1994     $(add_suffix _external $ARCH_EXT_LIST)
1995     $(add_suffix _inline   $ARCH_EXT_LIST)
1996     $ARCH_FEATURES
1997     $ATOMICS_LIST
1998     $BUILTIN_LIST
1999     $COMPLEX_FUNCS
2000     $HAVE_LIST_CMDLINE
2001     $HAVE_LIST_PUB
2002     $HEADERS_LIST
2003     $INTRINSICS_LIST
2004     $MATH_FUNCS
2005     $SYSTEM_FUNCS
2006     $THREADS_LIST
2007     $TOOLCHAIN_FEATURES
2008     $TYPES_LIST
2009     atomics_native
2010     dos_paths
2011     dxva2_lib
2012     dxva2api_cobj
2013     libc_msvcrt
2014     libdc1394_1
2015     libdc1394_2
2016     makeinfo
2017     makeinfo_html
2018     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2019     perl
2020     pod2man
2021     sdl
2022     section_data_rel_ro
2023     texi2html
2024     threads
2025     vaapi_drm
2026     vaapi_x11
2027     vdpau_x11
2028     winrt
2029     xlib
2030 "
2031
2032 # options emitted with CONFIG_ prefix but not available on the command line
2033 CONFIG_EXTRA="
2034     aandcttables
2035     ac3dsp
2036     audio_frame_queue
2037     audiodsp
2038     blockdsp
2039     bswapdsp
2040     cabac
2041     dirac_parse
2042     dvprofile
2043     exif
2044     faandct
2045     faanidct
2046     fdctdsp
2047     flacdsp
2048     fmtconvert
2049     frame_thread_encoder
2050     g722dsp
2051     golomb
2052     gplv3
2053     h263dsp
2054     h264chroma
2055     h264dsp
2056     h264pred
2057     h264qpel
2058     hpeldsp
2059     huffman
2060     huffyuvdsp
2061     huffyuvencdsp
2062     idctdsp
2063     iirfilter
2064     imdct15
2065     intrax8
2066     iso_media
2067     ividsp
2068     jpegtables
2069     lgplv3
2070     libx262
2071     llauddsp
2072     llviddsp
2073     lpc
2074     lzf
2075     me_cmp
2076     mpeg_er
2077     mpegaudio
2078     mpegaudiodsp
2079     mpegvideo
2080     mpegvideoenc
2081     mss34dsp
2082     pixblockdsp
2083     qpeldsp
2084     qsv
2085     qsvdec
2086     qsvenc
2087     rangecoder
2088     riffdec
2089     riffenc
2090     rtpdec
2091     rtpenc_chain
2092     rv34dsp
2093     sinewin
2094     snappy
2095     srtp
2096     startcode
2097     texturedsp
2098     texturedspenc
2099     tpeldsp
2100     vaapi_encode
2101     vc1dsp
2102     videodsp
2103     vp3dsp
2104     vp56dsp
2105     vp8dsp
2106     vt_bt2020
2107     wma_freqs
2108     wmv2dsp
2109 "
2110
2111 CMDLINE_SELECT="
2112     $ARCH_EXT_LIST
2113     $CONFIG_LIST
2114     $HAVE_LIST_CMDLINE
2115     $THREADS_LIST
2116     asm
2117     cross_compile
2118     debug
2119     extra_warnings
2120     logging
2121     lto
2122     optimizations
2123     rpath
2124     stripping
2125 "
2126
2127 PATHS_LIST="
2128     bindir
2129     datadir
2130     docdir
2131     incdir
2132     libdir
2133     mandir
2134     pkgconfigdir
2135     prefix
2136     shlibdir
2137     install_name_dir
2138 "
2139
2140 CMDLINE_SET="
2141     $PATHS_LIST
2142     ar
2143     arch
2144     as
2145     assert_level
2146     build_suffix
2147     cc
2148     objcc
2149     cpu
2150     cross_prefix
2151     custom_allocator
2152     cxx
2153     dep_cc
2154     doxygen
2155     env
2156     extra_version
2157     gas
2158     host_cc
2159     host_cflags
2160     host_ld
2161     host_ldflags
2162     host_libs
2163     host_os
2164     install
2165     ld
2166     ln_s
2167     logfile
2168     malloc_prefix
2169     nm
2170     optflags
2171     pkg_config
2172     pkg_config_flags
2173     progs_suffix
2174     random_seed
2175     ranlib
2176     samples
2177     strip
2178     sws_max_filter_size
2179     sysinclude
2180     sysroot
2181     target_exec
2182     target_os
2183     target_path
2184     target_samples
2185     tempprefix
2186     toolchain
2187     valgrind
2188     yasmexe
2189 "
2190
2191 CMDLINE_APPEND="
2192     extra_cflags
2193     extra_cxxflags
2194     extra_objcflags
2195     host_cppflags
2196 "
2197
2198 # code dependency declarations
2199
2200 # architecture extensions
2201
2202 armv5te_deps="arm"
2203 armv6_deps="arm"
2204 armv6t2_deps="arm"
2205 armv8_deps="aarch64"
2206 neon_deps_any="aarch64 arm"
2207 intrinsics_neon_deps="neon"
2208 vfp_deps_any="aarch64 arm"
2209 vfpv3_deps="vfp"
2210 setend_deps="arm"
2211
2212 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2213
2214 mipsfpu_deps="mips"
2215 mipsdsp_deps="mips"
2216 mipsdspr2_deps="mips"
2217 mips32r2_deps="mips"
2218 mips32r5_deps="mips"
2219 mips32r6_deps="mips"
2220 mips64r2_deps="mips"
2221 mips64r6_deps="mips"
2222 msa_deps="mipsfpu"
2223 mmi_deps="mips"
2224
2225 altivec_deps="ppc"
2226 dcbzl_deps="ppc"
2227 ldbrx_deps="ppc"
2228 ppc4xx_deps="ppc"
2229 vsx_deps="altivec"
2230 power8_deps="vsx"
2231
2232 cpunop_deps="i686"
2233 x86_64_select="i686"
2234 x86_64_suggest="fast_cmov"
2235
2236 amd3dnow_deps="mmx"
2237 amd3dnowext_deps="amd3dnow"
2238 i686_deps="x86"
2239 mmx_deps="x86"
2240 mmxext_deps="mmx"
2241 sse_deps="mmxext"
2242 sse2_deps="sse"
2243 sse3_deps="sse2"
2244 ssse3_deps="sse3"
2245 sse4_deps="ssse3"
2246 sse42_deps="sse4"
2247 aesni_deps="sse42"
2248 avx_deps="sse42"
2249 xop_deps="avx"
2250 fma3_deps="avx"
2251 fma4_deps="avx"
2252 avx2_deps="avx"
2253
2254 mmx_external_deps="yasm"
2255 mmx_inline_deps="inline_asm"
2256 mmx_suggest="mmx_external mmx_inline"
2257
2258 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2259     eval dep=\$${ext}_deps
2260     eval ${ext}_external_deps='"${dep}_external"'
2261     eval ${ext}_inline_deps='"${dep}_inline"'
2262     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2263 done
2264
2265 aligned_stack_if_any="aarch64 ppc x86"
2266 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2267 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2268 fast_unaligned_if_any="aarch64 ppc x86"
2269 simd_align_16_if_any="altivec neon sse"
2270
2271 # system capabilities
2272 symver_if_any="symver_asm_label symver_gnu_asm"
2273 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2274
2275 # threading support
2276 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2277 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2278 atomics_win32_if="MemoryBarrier"
2279 atomics_native_if_any="$ATOMICS_LIST"
2280 w32threads_deps="atomics_native"
2281 threads_if_any="$THREADS_LIST"
2282
2283 # subsystems
2284 dct_select="rdft"
2285 dirac_parse_select="golomb"
2286 error_resilience_select="me_cmp"
2287 faandct_deps="faan fdctdsp"
2288 faanidct_deps="faan idctdsp"
2289 h264dsp_select="startcode"
2290 frame_thread_encoder_deps="encoders threads"
2291 intrax8_select="blockdsp idctdsp"
2292 mdct_select="fft"
2293 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2294 mpeg_er_select="error_resilience"
2295 mpegaudio_select="mpegaudiodsp"
2296 mpegaudiodsp_select="dct"
2297 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2298 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2299 vc1dsp_select="h264chroma qpeldsp startcode"
2300 rdft_select="fft"
2301
2302 # decoders / encoders
2303 aac_decoder_select="imdct15 mdct sinewin"
2304 aac_fixed_decoder_select="mdct sinewin"
2305 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2306 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2307 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2308 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2309 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2310 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2311 adpcm_g722_decoder_select="g722dsp"
2312 adpcm_g722_encoder_select="g722dsp"
2313 aic_decoder_select="golomb idctdsp"
2314 alac_encoder_select="lpc"
2315 als_decoder_select="bswapdsp"
2316 amrnb_decoder_select="lsp"
2317 amrwb_decoder_select="lsp"
2318 amv_decoder_select="sp5x_decoder exif"
2319 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2320 ape_decoder_select="bswapdsp llauddsp"
2321 apng_decoder_select="zlib"
2322 apng_encoder_select="huffyuvencdsp zlib"
2323 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2324 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2325 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2326 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2327 atrac1_decoder_select="mdct sinewin"
2328 atrac3_decoder_select="mdct"
2329 atrac3p_decoder_select="mdct sinewin"
2330 avrn_decoder_select="exif jpegtables"
2331 bink_decoder_select="blockdsp hpeldsp"
2332 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2333 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2334 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2335 cllc_decoder_select="bswapdsp"
2336 comfortnoise_encoder_select="lpc"
2337 cook_decoder_select="audiodsp mdct sinewin"
2338 cscd_decoder_select="lzo"
2339 cscd_decoder_suggest="zlib"
2340 dca_decoder_select="mdct"
2341 dds_decoder_select="texturedsp"
2342 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2343 dnxhd_decoder_select="blockdsp idctdsp"
2344 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2345 dvvideo_decoder_select="dvprofile idctdsp"
2346 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2347 dxa_decoder_select="zlib"
2348 dxv_decoder_select="lzf texturedsp"
2349 eac3_decoder_select="ac3_decoder"
2350 eac3_encoder_select="ac3_encoder"
2351 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2352 eatgq_decoder_select="aandcttables"
2353 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2354 exr_decoder_select="zlib"
2355 ffv1_decoder_select="golomb rangecoder"
2356 ffv1_encoder_select="rangecoder"
2357 ffvhuff_decoder_select="huffyuv_decoder"
2358 ffvhuff_encoder_select="huffyuv_encoder"
2359 fic_decoder_select="golomb"
2360 flac_decoder_select="flacdsp golomb"
2361 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2362 flashsv2_decoder_select="zlib"
2363 flashsv2_encoder_select="zlib"
2364 flashsv_decoder_select="zlib"
2365 flashsv_encoder_select="zlib"
2366 flv_decoder_select="h263_decoder"
2367 flv_encoder_select="h263_encoder"
2368 fourxm_decoder_select="blockdsp bswapdsp"
2369 fraps_decoder_select="bswapdsp huffman"
2370 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2371 g729_decoder_select="audiodsp"
2372 h261_decoder_select="mpegvideo"
2373 h261_encoder_select="aandcttables mpegvideoenc"
2374 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2375 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2376 h263i_decoder_select="h263_decoder"
2377 h263p_decoder_select="h263_decoder"
2378 h263p_encoder_select="h263_encoder"
2379 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2380 h264_decoder_suggest="error_resilience"
2381 hap_decoder_select="snappy texturedsp"
2382 hap_encoder_deps="libsnappy"
2383 hap_encoder_select="texturedspenc"
2384 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2385 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2386 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2387 iac_decoder_select="imc_decoder"
2388 imc_decoder_select="bswapdsp fft mdct sinewin"
2389 indeo3_decoder_select="hpeldsp"
2390 indeo4_decoder_select="ividsp"
2391 indeo5_decoder_select="ividsp"
2392 interplay_video_decoder_select="hpeldsp"
2393 jpegls_decoder_select="golomb mjpeg_decoder"
2394 jpegls_encoder_select="golomb"
2395 jv_decoder_select="blockdsp"
2396 lagarith_decoder_select="huffyuvdsp"
2397 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2398 loco_decoder_select="golomb"
2399 magicyuv_decoder_select="huffyuvdsp"
2400 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2401 metasound_decoder_select="lsp mdct sinewin"
2402 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2403 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2404 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2405 mjpegb_decoder_select="mjpeg_decoder"
2406 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2407 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2408 mlp_decoder_select="mlp_parser"
2409 motionpixels_decoder_select="bswapdsp"
2410 mp1_decoder_select="mpegaudio"
2411 mp1float_decoder_select="mpegaudio"
2412 mp2_decoder_select="mpegaudio"
2413 mp2float_decoder_select="mpegaudio"
2414 mp3_decoder_select="mpegaudio"
2415 mp3adu_decoder_select="mpegaudio"
2416 mp3adufloat_decoder_select="mpegaudio"
2417 mp3float_decoder_select="mpegaudio"
2418 mp3on4_decoder_select="mpegaudio"
2419 mp3on4float_decoder_select="mpegaudio"
2420 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2421 mpc8_decoder_select="mpegaudiodsp"
2422 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2423 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2424 mpegvideo_decoder_select="mpegvideo"
2425 mpeg1video_decoder_select="mpegvideo"
2426 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2427 mpeg2video_decoder_select="mpegvideo"
2428 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2429 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2430 mpeg4_encoder_select="h263_encoder"
2431 msa1_decoder_select="mss34dsp"
2432 msmpeg4v1_decoder_select="h263_decoder"
2433 msmpeg4v2_decoder_select="h263_decoder"
2434 msmpeg4v2_encoder_select="h263_encoder"
2435 msmpeg4v3_decoder_select="h263_decoder"
2436 msmpeg4v3_encoder_select="h263_encoder"
2437 mss2_decoder_select="vc1_decoder mpegvideo"
2438 mts2_decoder_select="mss34dsp"
2439 mxpeg_decoder_select="mjpeg_decoder"
2440 nellymoser_decoder_select="mdct sinewin"
2441 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2442 nuv_decoder_select="idctdsp lzo"
2443 on2avc_decoder_select="mdct"
2444 opus_decoder_deps="swresample"
2445 opus_decoder_select="imdct15"
2446 png_decoder_select="zlib"
2447 png_encoder_select="huffyuvencdsp zlib"
2448 prores_decoder_select="blockdsp idctdsp"
2449 prores_encoder_select="fdctdsp"
2450 qcelp_decoder_select="lsp"
2451 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2452 ra_144_decoder_select="audiodsp"
2453 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2454 ralf_decoder_select="golomb"
2455 rawvideo_decoder_select="bswapdsp"
2456 rscc_decoder_select="zlib"
2457 rtjpeg_decoder_select="me_cmp"
2458 rv10_decoder_select="h263_decoder"
2459 rv10_encoder_select="h263_encoder"
2460 rv20_decoder_select="h263_decoder"
2461 rv20_encoder_select="h263_encoder"
2462 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2463 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2464 screenpresso_decoder_select="zlib"
2465 shorten_decoder_select="golomb"
2466 sipr_decoder_select="lsp"
2467 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2468 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2469 sonic_decoder_select="golomb rangecoder"
2470 sonic_encoder_select="golomb rangecoder"
2471 sonic_ls_encoder_select="golomb rangecoder"
2472 sp5x_decoder_select="mjpeg_decoder"
2473 svq1_decoder_select="hpeldsp"
2474 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2475 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2476 svq3_decoder_suggest="zlib"
2477 tak_decoder_select="audiodsp"
2478 tdsc_decoder_select="zlib mjpeg_decoder"
2479 theora_decoder_select="vp3_decoder"
2480 thp_decoder_select="mjpeg_decoder"
2481 tiff_decoder_suggest="zlib lzma"
2482 tiff_encoder_suggest="zlib"
2483 truehd_decoder_select="mlp_parser"
2484 truemotion2_decoder_select="bswapdsp"
2485 truespeech_decoder_select="bswapdsp"
2486 tscc_decoder_select="zlib"
2487 twinvq_decoder_select="mdct lsp sinewin"
2488 txd_decoder_select="texturedsp"
2489 utvideo_decoder_select="bswapdsp"
2490 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2491 vble_decoder_select="huffyuvdsp"
2492 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2493 vc1_qsv_decoder_deps="libmfx"
2494 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2495 vc1image_decoder_select="vc1_decoder"
2496 vorbis_decoder_select="mdct"
2497 vorbis_encoder_select="mdct"
2498 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2499 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2500 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2501 vp6a_decoder_select="vp6_decoder"
2502 vp6f_decoder_select="vp6_decoder"
2503 vp7_decoder_select="h264pred videodsp vp8dsp"
2504 vp8_decoder_select="h264pred videodsp vp8dsp"
2505 vp9_decoder_select="videodsp vp9_parser"
2506 webp_decoder_select="vp8_decoder exif"
2507 wmalossless_decoder_select="llauddsp"
2508 wmapro_decoder_select="mdct sinewin wma_freqs"
2509 wmav1_decoder_select="mdct sinewin wma_freqs"
2510 wmav1_encoder_select="mdct sinewin wma_freqs"
2511 wmav2_decoder_select="mdct sinewin wma_freqs"
2512 wmav2_encoder_select="mdct sinewin wma_freqs"
2513 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2514 wmv1_decoder_select="h263_decoder"
2515 wmv1_encoder_select="h263_encoder"
2516 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2517 wmv2_encoder_select="h263_encoder wmv2dsp"
2518 wmv3_decoder_select="vc1_decoder"
2519 wmv3image_decoder_select="wmv3_decoder"
2520 xma1_decoder_select="wmapro_decoder"
2521 xma2_decoder_select="wmapro_decoder"
2522 zerocodec_decoder_select="zlib"
2523 zlib_decoder_select="zlib"
2524 zlib_encoder_select="zlib"
2525 zmbv_decoder_select="zlib"
2526 zmbv_encoder_select="zlib"
2527
2528 # platform codecs
2529 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2530 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2531
2532 # hardware accelerators
2533 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2534 cuvid_deps="cuda"
2535 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2536 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2537 vaapi_deps="va_va_h"
2538 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2539 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2540 vda_deps="vda_framework pthreads"
2541 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2542 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2543 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2544 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2545 xvmc_deps="X11_extensions_XvMClib_h"
2546
2547 h263_vaapi_hwaccel_deps="vaapi"
2548 h263_vaapi_hwaccel_select="h263_decoder"
2549 h263_videotoolbox_hwaccel_deps="videotoolbox"
2550 h263_videotoolbox_hwaccel_select="h263_decoder"
2551 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2552 h264_cuvid_hwaccel_deps="cuda cuvid CUVIDH264PICPARAMS"
2553 h264_d3d11va_hwaccel_deps="d3d11va"
2554 h264_d3d11va_hwaccel_select="h264_decoder"
2555 h264_dxva2_hwaccel_deps="dxva2"
2556 h264_dxva2_hwaccel_select="h264_decoder"
2557 h264_mediacodec_decoder_deps="mediacodec"
2558 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2559 h264_mmal_decoder_deps="mmal"
2560 h264_mmal_decoder_select="mmal"
2561 h264_mmal_hwaccel_deps="mmal"
2562 h264_omx_encoder_deps="omx"
2563 h264_qsv_hwaccel_deps="libmfx"
2564 h264_vaapi_hwaccel_deps="vaapi"
2565 h264_vaapi_hwaccel_select="h264_decoder"
2566 h264_vda_decoder_deps="vda"
2567 h264_vda_decoder_select="h264_decoder"
2568 h264_vda_hwaccel_deps="vda"
2569 h264_vda_hwaccel_select="h264_decoder"
2570 h264_vda_old_hwaccel_deps="vda"
2571 h264_vda_old_hwaccel_select="h264_decoder"
2572 h264_vdpau_decoder_deps="vdpau"
2573 h264_vdpau_decoder_select="h264_decoder"
2574 h264_vdpau_hwaccel_deps="vdpau"
2575 h264_vdpau_hwaccel_select="h264_decoder"
2576 h264_videotoolbox_hwaccel_deps="videotoolbox"
2577 h264_videotoolbox_hwaccel_select="h264_decoder"
2578 hevc_cuvid_hwaccel_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2579 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2580 hevc_d3d11va_hwaccel_select="hevc_decoder"
2581 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2582 hevc_dxva2_hwaccel_select="hevc_decoder"
2583 hevc_qsv_hwaccel_deps="libmfx"
2584 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2585 hevc_vaapi_hwaccel_select="hevc_decoder"
2586 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2587 hevc_vdpau_hwaccel_select="hevc_decoder"
2588 mpeg_vdpau_decoder_deps="vdpau"
2589 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2590 mpeg_xvmc_hwaccel_deps="xvmc"
2591 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2592 mpeg1_vdpau_decoder_deps="vdpau"
2593 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2594 mpeg1_vdpau_hwaccel_deps="vdpau"
2595 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2596 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2597 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2598 mpeg1_xvmc_hwaccel_deps="xvmc"
2599 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2600 mpeg2_crystalhd_decoder_select="crystalhd"
2601 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2602 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2603 mpeg2_dxva2_hwaccel_deps="dxva2"
2604 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2605 mpeg2_mmal_decoder_deps="mmal"
2606 mpeg2_mmal_decoder_select="mmal"
2607 mpeg2_mmal_hwaccel_deps="mmal"
2608 mpeg2_qsv_hwaccel_deps="libmfx"
2609 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2610 mpeg2_vaapi_hwaccel_deps="vaapi"
2611 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2612 mpeg2_vdpau_hwaccel_deps="vdpau"
2613 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2614 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2615 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2616 mpeg2_xvmc_hwaccel_deps="xvmc"
2617 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2618 mpeg4_crystalhd_decoder_select="crystalhd"
2619 mpeg4_mmal_decoder_deps="mmal"
2620 mpeg4_mmal_decoder_select="mmal"
2621 mpeg4_mmal_hwaccel_deps="mmal"
2622 mpeg4_omx_encoder_deps="omx"
2623 mpeg4_vaapi_hwaccel_deps="vaapi"
2624 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2625 mpeg4_vdpau_decoder_deps="vdpau"
2626 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2627 mpeg4_vdpau_hwaccel_deps="vdpau"
2628 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2629 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2630 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2631 msmpeg4_crystalhd_decoder_select="crystalhd"
2632 vc1_crystalhd_decoder_select="crystalhd"
2633 vc1_cuvid_hwaccel_deps="cuda cuvid CUVIDVC1PICPARAMS"
2634 vc1_d3d11va_hwaccel_deps="d3d11va"
2635 vc1_d3d11va_hwaccel_select="vc1_decoder"
2636 vc1_dxva2_hwaccel_deps="dxva2"
2637 vc1_dxva2_hwaccel_select="vc1_decoder"
2638 vc1_mmal_decoder_deps="mmal"
2639 vc1_mmal_decoder_select="mmal"
2640 vc1_mmal_hwaccel_deps="mmal"
2641 vc1_qsv_hwaccel_deps="libmfx"
2642 vc1_qsv_hwaccel_select="qsvdec_vc1"
2643 vc1_vaapi_hwaccel_deps="vaapi"
2644 vc1_vaapi_hwaccel_select="vc1_decoder"
2645 vc1_vdpau_decoder_deps="vdpau"
2646 vc1_vdpau_decoder_select="vc1_decoder"
2647 vc1_vdpau_hwaccel_deps="vdpau"
2648 vc1_vdpau_hwaccel_select="vc1_decoder"
2649 vp8_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2650 vp9_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2651 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2652 vp9_d3d11va_hwaccel_select="vp9_decoder"
2653 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2654 vp9_dxva2_hwaccel_select="vp9_decoder"
2655 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2656 vp9_vaapi_hwaccel_select="vp9_decoder"
2657 wmv3_crystalhd_decoder_select="crystalhd"
2658 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2659 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2660 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2661 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2662 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2663
2664 # hardware-accelerated codecs
2665 omx_deps="dlopen pthreads"
2666 omx_extralibs='$ldl'
2667 qsvdec_select="qsv"
2668 qsvenc_select="qsv"
2669 vaapi_encode_deps="vaapi"
2670
2671 hwupload_cuda_filter_deps="cuda"
2672 scale_npp_filter_deps="cuda libnpp"
2673
2674 nvenc_encoder_deps="nvenc"
2675 h264_cuvid_decoder_deps="cuda cuvid CUVIDH264PICPARAMS"
2676 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2677 h264_nvenc_encoder_deps="nvenc"
2678 h264_qsv_decoder_deps="libmfx"
2679 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2680 h264_qsv_encoder_deps="libmfx"
2681 h264_qsv_encoder_select="qsvenc"
2682 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2683 h264_vaapi_encoder_select="vaapi_encode golomb"
2684
2685 hevc_cuvid_decoder_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2686 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2687 hevc_nvenc_encoder_deps="nvenc"
2688 hevc_qsv_decoder_deps="libmfx"
2689 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2690 hevc_qsv_encoder_deps="libmfx"
2691 hevc_qsv_encoder_select="qsvenc"
2692 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2693 hevc_vaapi_encoder_select="vaapi_encode golomb"
2694 mpeg2_qsv_decoder_deps="libmfx"
2695 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2696 mpeg2_qsv_encoder_deps="libmfx"
2697 mpeg2_qsv_encoder_select="qsvenc"
2698 nvenc_h264_encoder_deps="nvenc"
2699 nvenc_hevc_encoder_deps="nvenc"
2700
2701 vc1_cuvid_decoder_deps="cuda cuvid CUVIDVC1PICPARAMS"
2702 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2703 vp8_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2704 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2705 vp9_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2706 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2707
2708 # parsers
2709 h264_parser_select="golomb h264dsp"
2710 hevc_parser_select="golomb"
2711 mpegvideo_parser_select="mpegvideo"
2712 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2713 vc1_parser_select="vc1dsp"
2714
2715 # bitstream_filters
2716 mjpeg2jpeg_bsf_select="jpegtables"
2717
2718 # external libraries
2719 aac_at_decoder_deps="audiotoolbox"
2720 ac3_at_decoder_deps="audiotoolbox"
2721 ac3_at_decoder_select="ac3_parser"
2722 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2723 alac_at_decoder_deps="audiotoolbox"
2724 amr_nb_at_decoder_deps="audiotoolbox"
2725 eac3_at_decoder_deps="audiotoolbox"
2726 eac3_at_decoder_select="ac3_parser"
2727 gsm_ms_at_decoder_deps="audiotoolbox"
2728 ilbc_at_decoder_deps="audiotoolbox"
2729 mp1_at_decoder_deps="audiotoolbox"
2730 mp2_at_decoder_deps="audiotoolbox"
2731 mp3_at_decoder_deps="audiotoolbox"
2732 pcm_alaw_at_decoder_deps="audiotoolbox"
2733 pcm_mulaw_at_decoder_deps="audiotoolbox"
2734 qdmc_at_decoder_deps="audiotoolbox"
2735 qdm2_at_decoder_deps="audiotoolbox"
2736 aac_at_encoder_deps="audiotoolbox"
2737 aac_at_encoder_select="audio_frame_queue"
2738 alac_at_encoder_deps="audiotoolbox"
2739 alac_at_encoder_select="audio_frame_queue"
2740 ilbc_at_encoder_deps="audiotoolbox"
2741 ilbc_at_encoder_select="audio_frame_queue"
2742 pcm_alaw_at_encoder_deps="audiotoolbox"
2743 pcm_alaw_at_encoder_select="audio_frame_queue"
2744 pcm_mulaw_at_encoder_deps="audiotoolbox"
2745 pcm_mulaw_at_encoder_select="audio_frame_queue"
2746 chromaprint_muxer_deps="chromaprint"
2747 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2748 libcelt_decoder_deps="libcelt"
2749 libfaac_encoder_deps="libfaac"
2750 libfaac_encoder_select="audio_frame_queue"
2751 libfdk_aac_decoder_deps="libfdk_aac"
2752 libfdk_aac_encoder_deps="libfdk_aac"
2753 libfdk_aac_encoder_select="audio_frame_queue"
2754 libgme_demuxer_deps="libgme"
2755 libgsm_decoder_deps="libgsm"
2756 libgsm_encoder_deps="libgsm"
2757 libgsm_ms_decoder_deps="libgsm"
2758 libgsm_ms_encoder_deps="libgsm"
2759 libilbc_decoder_deps="libilbc"
2760 libilbc_encoder_deps="libilbc"
2761 libkvazaar_encoder_deps="libkvazaar"
2762 libmodplug_demuxer_deps="libmodplug"
2763 libmp3lame_encoder_deps="libmp3lame"
2764 libmp3lame_encoder_select="audio_frame_queue"
2765 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2766 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2767 libopencore_amrnb_encoder_select="audio_frame_queue"
2768 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2769 libopenh264_encoder_deps="libopenh264"
2770 libopenjpeg_decoder_deps="libopenjpeg"
2771 libopenjpeg_encoder_deps="libopenjpeg"
2772 libopus_decoder_deps="libopus"
2773 libopus_encoder_deps="libopus"
2774 libopus_encoder_select="audio_frame_queue"
2775 libschroedinger_decoder_deps="libschroedinger"
2776 libschroedinger_encoder_deps="libschroedinger"
2777 libshine_encoder_deps="libshine"
2778 libshine_encoder_select="audio_frame_queue"
2779 libspeex_decoder_deps="libspeex"
2780 libspeex_encoder_deps="libspeex"
2781 libspeex_encoder_select="audio_frame_queue"
2782 libtheora_encoder_deps="libtheora"
2783 libtwolame_encoder_deps="libtwolame"
2784 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2785 libvorbis_decoder_deps="libvorbis"
2786 libvorbis_encoder_deps="libvorbis"
2787 libvorbis_encoder_select="audio_frame_queue"
2788 libvpx_vp8_decoder_deps="libvpx"
2789 libvpx_vp8_encoder_deps="libvpx"
2790 libvpx_vp9_decoder_deps="libvpx"
2791 libvpx_vp9_encoder_deps="libvpx"
2792 libwavpack_encoder_deps="libwavpack"
2793 libwebp_encoder_deps="libwebp"
2794 libwebp_anim_encoder_deps="libwebp"
2795 libx262_encoder_deps="libx262"
2796 libx264_encoder_deps="libx264"
2797 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2798 libx264rgb_encoder_select="libx264_encoder"
2799 libx265_encoder_deps="libx265"
2800 libxavs_encoder_deps="libxavs"
2801 libxvid_encoder_deps="libxvid"
2802 libzvbi_teletext_decoder_deps="libzvbi"
2803 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2804 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2805 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2806 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2807 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2808
2809 # demuxers / muxers
2810 ac3_demuxer_select="ac3_parser"
2811 asf_demuxer_select="riffdec"
2812 asf_o_demuxer_select="riffdec"
2813 asf_muxer_select="riffenc"
2814 asf_stream_muxer_select="asf_muxer"
2815 avi_demuxer_select="iso_media riffdec exif"
2816 avi_muxer_select="riffenc"
2817 avisynth_demuxer_deps="avisynth"
2818 avisynth_demuxer_select="riffdec"
2819 caf_demuxer_select="iso_media riffdec"
2820 dash_muxer_select="mp4_muxer"
2821 dirac_demuxer_select="dirac_parser"
2822 dts_demuxer_select="dca_parser"
2823 dtshd_demuxer_select="dca_parser"
2824 dv_demuxer_select="dvprofile"
2825 dv_muxer_select="dvprofile"
2826 dxa_demuxer_select="riffdec"
2827 eac3_demuxer_select="ac3_parser"
2828 f4v_muxer_select="mov_muxer"
2829 flac_demuxer_select="flac_parser"
2830 hds_muxer_select="flv_muxer"
2831 hls_muxer_select="mpegts_muxer"
2832 image2_alias_pix_demuxer_select="image2_demuxer"
2833 image2_brender_pix_demuxer_select="image2_demuxer"
2834 ipod_muxer_select="mov_muxer"
2835 ismv_muxer_select="mov_muxer"
2836 libnut_demuxer_deps="libnut"
2837 libnut_muxer_deps="libnut"
2838 matroska_audio_muxer_select="matroska_muxer"
2839 matroska_demuxer_select="iso_media riffdec"
2840 matroska_demuxer_suggest="bzlib lzo zlib"
2841 matroska_muxer_select="iso_media riffenc"
2842 mmf_muxer_select="riffenc"
2843 mov_demuxer_select="iso_media riffdec"
2844 mov_demuxer_suggest="zlib"
2845 mov_muxer_select="iso_media riffenc rtpenc_chain"
2846 mp3_demuxer_select="mpegaudio_parser"
2847 mp4_muxer_select="mov_muxer"
2848 mpegts_demuxer_select="iso_media"
2849 mpegts_muxer_select="adts_muxer latm_muxer"
2850 mpegtsraw_demuxer_select="mpegts_demuxer"
2851 mxf_d10_muxer_select="mxf_muxer"
2852 mxf_opatom_muxer_select="mxf_muxer"
2853 nut_muxer_select="riffenc"
2854 nuv_demuxer_select="riffdec"
2855 oga_muxer_select="ogg_muxer"
2856 ogg_demuxer_select="dirac_parse"
2857 opus_muxer_select="ogg_muxer"
2858 psp_muxer_select="mov_muxer"
2859 rtp_demuxer_select="sdp_demuxer"
2860 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2861 rtsp_demuxer_select="http_protocol rtpdec"
2862 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2863 sap_demuxer_select="sdp_demuxer"
2864 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2865 sdp_demuxer_select="rtpdec"
2866 smoothstreaming_muxer_select="ismv_muxer"
2867 spdif_muxer_select="aac_parser"
2868 spx_muxer_select="ogg_muxer"
2869 swf_demuxer_suggest="zlib"
2870 tak_demuxer_select="tak_parser"
2871 tg2_muxer_select="mov_muxer"
2872 tgp_muxer_select="mov_muxer"
2873 vobsub_demuxer_select="mpegps_demuxer"
2874 w64_demuxer_select="wav_demuxer"
2875 w64_muxer_select="wav_muxer"
2876 wav_demuxer_select="riffdec"
2877 wav_muxer_select="riffenc"
2878 webm_muxer_select="iso_media riffenc"
2879 webm_dash_manifest_demuxer_select="matroska_demuxer"
2880 wtv_demuxer_select="mpegts_demuxer riffdec"
2881 wtv_muxer_select="mpegts_muxer riffenc"
2882 xmv_demuxer_select="riffdec"
2883 xwma_demuxer_select="riffdec"
2884
2885 # indevs / outdevs
2886 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2887 alsa_outdev_deps="alsa_asoundlib_h"
2888 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2889 avfoundation_indev_select="avfoundation"
2890 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2891 caca_outdev_deps="libcaca"
2892 decklink_indev_deps="decklink pthreads"
2893 decklink_indev_extralibs="-lstdc++"
2894 decklink_outdev_deps="decklink pthreads"
2895 decklink_outdev_extralibs="-lstdc++"
2896 dshow_indev_deps="IBaseFilter"
2897 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2898 dv1394_indev_deps="dv1394"
2899 dv1394_indev_select="dv_demuxer"
2900 fbdev_indev_deps="linux_fb_h"
2901 fbdev_outdev_deps="linux_fb_h"
2902 gdigrab_indev_deps="CreateDIBSection"
2903 gdigrab_indev_extralibs="-lgdi32"
2904 gdigrab_indev_select="bmp_decoder"
2905 iec61883_indev_deps="libiec61883"
2906 jack_indev_deps="jack_jack_h"
2907 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2908 lavfi_indev_deps="avfilter"
2909 libcdio_indev_deps="libcdio"
2910 libdc1394_indev_deps="libdc1394"
2911 libv4l2_indev_deps="libv4l2"
2912 openal_indev_deps="openal"
2913 opengl_outdev_deps="opengl"
2914 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2915 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2916 pulse_indev_deps="libpulse"
2917 pulse_outdev_deps="libpulse"
2918 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2919 qtkit_indev_select="qtkit"
2920 sdl_outdev_deps="sdl"
2921 sndio_indev_deps="sndio_h"
2922 sndio_outdev_deps="sndio_h"
2923 v4l_indev_deps="linux_videodev_h"
2924 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2925 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2926 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2927 vfwcap_indev_extralibs="-lavicap32"
2928 x11grab_indev_deps="x11grab"
2929 x11grab_xcb_indev_deps="libxcb"
2930 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2931 xv_outdev_extralibs="-lXv -lX11 -lXext"
2932
2933 # protocols
2934 async_protocol_deps="threads"
2935 bluray_protocol_deps="libbluray"
2936 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2937 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2938 ffrtmpcrypt_protocol_select="tcp_protocol"
2939 ffrtmphttp_protocol_deps="!librtmp_protocol"
2940 ffrtmphttp_protocol_select="http_protocol"
2941 ftp_protocol_select="tcp_protocol"
2942 gopher_protocol_select="network"
2943 http_protocol_select="tcp_protocol"
2944 httpproxy_protocol_select="tcp_protocol"
2945 https_protocol_select="tls_protocol"
2946 icecast_protocol_select="http_protocol"
2947 librtmp_protocol_deps="librtmp"
2948 librtmpe_protocol_deps="librtmp"
2949 librtmps_protocol_deps="librtmp"
2950 librtmpt_protocol_deps="librtmp"
2951 librtmpte_protocol_deps="librtmp"
2952 libsmbclient_protocol_deps="libsmbclient gplv3"
2953 libssh_protocol_deps="libssh"
2954 mmsh_protocol_select="http_protocol"
2955 mmst_protocol_select="network"
2956 rtmp_protocol_deps="!librtmp_protocol"
2957 rtmp_protocol_select="tcp_protocol"
2958 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2959 rtmps_protocol_deps="!librtmp_protocol"
2960 rtmps_protocol_select="tls_protocol"
2961 rtmpt_protocol_select="ffrtmphttp_protocol"
2962 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2963 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2964 rtp_protocol_select="udp_protocol"
2965 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2966 sctp_protocol_select="network"
2967 srtp_protocol_select="rtp_protocol srtp"
2968 tcp_protocol_select="network"
2969 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2970 tls_gnutls_protocol_select="tcp_protocol"
2971 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2972 tls_openssl_protocol_select="tcp_protocol"
2973 tls_schannel_protocol_deps="schannel"
2974 tls_schannel_protocol_select="tcp_protocol"
2975 tls_securetransport_protocol_deps="securetransport"
2976 tls_securetransport_protocol_select="tcp_protocol"
2977 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2978 udp_protocol_select="network"
2979 udplite_protocol_select="network"
2980 unix_protocol_deps="sys_un_h"
2981 unix_protocol_select="network"
2982
2983 # filters
2984 afftfilt_filter_deps="avcodec"
2985 afftfilt_filter_select="fft"
2986 amovie_filter_deps="avcodec avformat"
2987 aresample_filter_deps="swresample"
2988 ass_filter_deps="libass"
2989 asyncts_filter_deps="avresample"
2990 atempo_filter_deps="avcodec"
2991 atempo_filter_select="rdft"
2992 azmq_filter_deps="libzmq"
2993 blackframe_filter_deps="gpl"
2994 boxblur_filter_deps="gpl"
2995 bs2b_filter_deps="libbs2b"
2996 colormatrix_filter_deps="gpl"
2997 cover_rect_filter_deps="avcodec avformat gpl"
2998 cropdetect_filter_deps="gpl"
2999 delogo_filter_deps="gpl"
3000 deshake_filter_select="pixelutils"
3001 drawtext_filter_deps="libfreetype"
3002 ebur128_filter_deps="gpl"
3003 eq_filter_deps="gpl"
3004 fftfilt_filter_deps="avcodec"
3005 fftfilt_filter_select="rdft"
3006 find_rect_filter_deps="avcodec avformat gpl"
3007 firequalizer_filter_deps="avcodec"
3008 firequalizer_filter_select="rdft"
3009 flite_filter_deps="libflite"
3010 framerate_filter_select="pixelutils"
3011 frei0r_filter_deps="frei0r dlopen"
3012 frei0r_src_filter_deps="frei0r dlopen"
3013 fspp_filter_deps="gpl"
3014 geq_filter_deps="gpl"
3015 histeq_filter_deps="gpl"
3016 hqdn3d_filter_deps="gpl"
3017 interlace_filter_deps="gpl"
3018 kerndeint_filter_deps="gpl"
3019 ladspa_filter_deps="ladspa dlopen"
3020 loudnorm_filter_deps="libebur128"
3021 mcdeint_filter_deps="avcodec gpl"
3022 movie_filter_deps="avcodec avformat"
3023 mpdecimate_filter_deps="gpl"
3024 mpdecimate_filter_select="pixelutils"
3025 mptestsrc_filter_deps="gpl"
3026 negate_filter_deps="lut_filter"
3027 nnedi_filter_deps="gpl"
3028 ocr_filter_deps="libtesseract"
3029 ocv_filter_deps="libopencv"
3030 owdenoise_filter_deps="gpl"
3031 pan_filter_deps="swresample"
3032 perspective_filter_deps="gpl"
3033 phase_filter_deps="gpl"
3034 pp7_filter_deps="gpl"
3035 pp_filter_deps="gpl postproc"
3036 pullup_filter_deps="gpl"
3037 removelogo_filter_deps="avcodec avformat swscale"
3038 repeatfields_filter_deps="gpl"
3039 resample_filter_deps="avresample"
3040 rubberband_filter_deps="librubberband"
3041 sab_filter_deps="gpl swscale"
3042 scale2ref_filter_deps="swscale"
3043 scale_filter_deps="swscale"
3044 select_filter_select="pixelutils"
3045 showcqt_filter_deps="avcodec avformat swscale"
3046 showcqt_filter_select="fft"
3047 showfreqs_filter_deps="avcodec"
3048 showfreqs_filter_select="fft"
3049 showspectrum_filter_deps="avcodec"
3050 showspectrum_filter_select="fft"
3051 showspectrumpic_filter_deps="avcodec"
3052 showspectrumpic_filter_select="fft"
3053 smartblur_filter_deps="gpl swscale"
3054 sofalizer_filter_deps="netcdf avcodec"
3055 sofalizer_filter_select="fft"
3056 spectrumsynth_filter_deps="avcodec"
3057 spectrumsynth_filter_select="fft"
3058 spp_filter_deps="gpl avcodec"
3059 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3060 stereo3d_filter_deps="gpl"
3061 subtitles_filter_deps="avformat avcodec libass"
3062 super2xsai_filter_deps="gpl"
3063 pixfmts_super2xsai_test_deps="super2xsai_filter"
3064 tinterlace_filter_deps="gpl"
3065 tinterlace_merge_test_deps="tinterlace_filter"
3066 tinterlace_pad_test_deps="tinterlace_filter"
3067 uspp_filter_deps="gpl avcodec"
3068 vidstabdetect_filter_deps="libvidstab"
3069 vidstabtransform_filter_deps="libvidstab"
3070 zmq_filter_deps="libzmq"
3071 zoompan_filter_deps="swscale"
3072 zscale_filter_deps="libzimg"
3073 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3074
3075 # examples
3076 avcodec_example_deps="avcodec avutil"
3077 avio_dir_cmd="avformat avutil"
3078 avio_reading="avformat avcodec avutil"
3079 decoding_encoding_example_deps="avcodec avformat avutil"
3080 demuxing_decoding_example_deps="avcodec avformat avutil"
3081 extract_mvs_example_deps="avcodec avformat avutil"
3082 filter_audio_example_deps="avfilter avutil"
3083 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3084 filtering_video_example_deps="avfilter avcodec avformat avutil"
3085 metadata_example_deps="avformat avutil"
3086 muxing_example_deps="avcodec avformat avutil swscale"
3087 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3088 remuxing_example_deps="avcodec avformat avutil"
3089 resampling_audio_example_deps="avutil swresample"
3090 scaling_video_example_deps="avutil swscale"
3091 transcode_aac_example_deps="avcodec avformat swresample"
3092 transcoding_example_deps="avfilter avcodec avformat avutil"
3093
3094 # libraries, in linking order
3095 avcodec_deps="avutil"
3096 avdevice_deps="avformat avcodec avutil"
3097 avfilter_deps="avutil"
3098 avformat_deps="avcodec avutil"
3099 avresample_deps="avutil"
3100 postproc_deps="avutil gpl"
3101 swresample_deps="avutil"
3102 swscale_deps="avutil"
3103
3104 # programs
3105 ffmpeg_deps="avcodec avfilter avformat swresample"
3106 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3107                null_filter
3108                setpts_filter trim_filter"
3109 ffplay_deps="avcodec avformat swscale swresample sdl"
3110 ffplay_libs='$sdl_libs'
3111 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3112 ffprobe_deps="avcodec avformat"
3113 ffserver_deps="avformat fork sarestart"
3114 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3115
3116 # documentation
3117 podpages_deps="perl"
3118 manpages_deps="perl pod2man"
3119 htmlpages_deps="perl"
3120 htmlpages_deps_any="makeinfo_html texi2html"
3121 txtpages_deps="perl makeinfo"
3122 doc_deps_any="manpages htmlpages podpages txtpages"
3123
3124 # default parameters
3125
3126 logfile="config.log"
3127
3128 # installation paths
3129 prefix_default="/usr/local"
3130 bindir_default='${prefix}/bin'
3131 datadir_default='${prefix}/share/ffmpeg'
3132 docdir_default='${prefix}/share/doc/ffmpeg'
3133 incdir_default='${prefix}/include'
3134 libdir_default='${prefix}/lib'
3135 mandir_default='${prefix}/share/man'
3136
3137 # toolchain
3138 ar_default="ar"
3139 cc_default="gcc"
3140 cxx_default="g++"
3141 host_cc_default="gcc"
3142 cp_f="cp -f"
3143 doxygen_default="doxygen"
3144 install="install"
3145 ln_s_default="ln -s -f"
3146 nm_default="nm -g"
3147 objformat="elf"
3148 pkg_config_default=pkg-config
3149 ranlib_default="ranlib"
3150 strip_default="strip"
3151 yasmexe_default="yasm"
3152 windres_default="windres"
3153
3154 # OS
3155 target_os_default=$(tolower $(uname -s))
3156 host_os=$target_os_default
3157
3158 # machine
3159 if test "$target_os_default" = aix; then
3160     arch_default=$(uname -p)
3161     strip_default="strip -X32_64"
3162 else
3163     arch_default=$(uname -m)
3164 fi
3165 cpu="generic"
3166 intrinsics="none"
3167
3168 # configurable options
3169 enable $PROGRAM_LIST
3170 enable $DOCUMENT_LIST
3171 enable $EXAMPLE_LIST
3172 enable $(filter_out avresample $LIBRARY_LIST)
3173 enable stripping
3174
3175 enable asm
3176 enable debug
3177 enable doc
3178 enable faan faandct faanidct
3179 enable optimizations
3180 enable runtime_cpudetect
3181 enable safe_bitstream_reader
3182 enable static
3183 enable swscale_alpha
3184 enable valgrind_backtrace
3185
3186 sws_max_filter_size_default=256
3187 set_default sws_max_filter_size
3188
3189 # Enable platform codecs by default.
3190 enable audiotoolbox
3191
3192 # Enable hwaccels by default.
3193 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3194 enable xlib
3195
3196 enable vda_framework videotoolbox videotoolbox_encoder
3197
3198 # build settings
3199 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3200 LIBPREF="lib"
3201 LIBSUF=".a"
3202 FULLNAME='$(NAME)$(BUILDSUF)'
3203 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3204 SLIBPREF="lib"
3205 SLIBSUF=".so"
3206 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3207 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3208 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3209 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3210 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3211 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3212
3213 asflags_filter=echo
3214 cflags_filter=echo
3215 ldflags_filter=echo
3216
3217 AS_C='-c'
3218 AS_O='-o $@'
3219 CC_C='-c'
3220 CC_E='-E -o $@'
3221 CC_O='-o $@'
3222 CXX_C='-c'
3223 CXX_O='-o $@'
3224 OBJCC_C='-c'
3225 OBJCC_E='-E -o $@'
3226 OBJCC_O='-o $@'
3227 LD_O='-o $@'
3228 LD_LIB='-l%'
3229 LD_PATH='-L'
3230 HOSTCC_C='-c'
3231 HOSTCC_E='-E -o $@'
3232 HOSTCC_O='-o $@'
3233 HOSTLD_O='-o $@'
3234
3235 host_libs='-lm'
3236 host_cflags_filter=echo
3237 host_ldflags_filter=echo
3238
3239 target_path='$(CURDIR)'
3240
3241 # since the object filename is not given with the -MM flag, the compiler
3242 # is only able to print the basename, and we must add the path ourselves
3243 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3244 DEPFLAGS='-MM'
3245
3246 # find source path
3247 if test -f configure; then
3248     source_path=.
3249 else
3250     source_path=$(cd $(dirname "$0"); pwd)
3251     case "$source_path" in
3252         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3253     esac
3254     test -e "$source_path/config.h" &&
3255         die "Out of tree builds are impossible with config.h in source dir."
3256 fi
3257
3258 for v in "$@"; do
3259     r=${v#*=}
3260     l=${v%"$r"}
3261     r=$(sh_quote "$r")
3262     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3263 done
3264
3265 find_things(){
3266     thing=$1
3267     pattern=$2
3268     file=$source_path/$3
3269     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3270 }
3271
3272 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3273 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3274 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3275 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3276 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3277 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3278 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3279 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3280 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3281
3282 find_things_extern(){
3283     thing=$1
3284     pattern=$2
3285     file=$source_path/$3
3286     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3287 }
3288
3289 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3290 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3291
3292 ALL_COMPONENTS="
3293     $BSF_LIST
3294     $DECODER_LIST
3295     $DEMUXER_LIST
3296     $ENCODER_LIST
3297     $FILTER_LIST
3298     $HWACCEL_LIST
3299     $INDEV_LIST
3300     $MUXER_LIST
3301     $OUTDEV_LIST
3302     $PARSER_LIST
3303     $PROTOCOL_LIST
3304 "
3305
3306 for n in $COMPONENT_LIST; do
3307     v=$(toupper ${n%s})_LIST
3308     eval enable \$$v
3309     eval ${n}_if_any="\$$v"
3310 done
3311
3312 enable $ARCH_EXT_LIST
3313
3314 die_unknown(){
3315     echo "Unknown option \"$1\"."
3316     echo "See $0 --help for available options."
3317     exit 1
3318 }
3319
3320 print_in_columns() {
3321     cols=$(expr $ncols / 24)
3322     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3323 }
3324
3325 show_list() {
3326     suffix=_$1
3327     shift
3328     echo $* | sed s/$suffix//g | print_in_columns
3329     exit 0
3330 }
3331
3332 rand_list(){
3333     IFS=', '
3334     set -- $*
3335     unset IFS
3336     for thing; do
3337         comp=${thing%:*}
3338         prob=${thing#$comp}
3339         prob=${prob#:}
3340         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3341         echo "prob ${prob:-0.5}"
3342         printf '%s\n' $comp
3343     done
3344 }
3345
3346 do_random(){
3347     action=$1
3348     shift
3349     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3350     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3351 }
3352
3353 for opt do
3354     optval="${opt#*=}"
3355     case "$opt" in
3356         --extra-ldflags=*)
3357             add_ldflags $optval
3358         ;;
3359         --extra-ldexeflags=*)
3360             add_ldexeflags $optval
3361         ;;
3362         --extra-ldlibflags=*)
3363             add_ldlibflags $optval
3364         ;;
3365         --extra-libs=*)
3366             add_extralibs $optval
3367         ;;
3368         --disable-devices)
3369             disable $INDEV_LIST $OUTDEV_LIST
3370         ;;
3371         --enable-debug=*)
3372             debuglevel="$optval"
3373         ;;
3374         --disable-programs)
3375             disable $PROGRAM_LIST
3376         ;;
3377         --disable-everything)
3378             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3379         ;;
3380         --disable-all)
3381             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3382             disable $LIBRARY_LIST $PROGRAM_LIST doc
3383             enable avutil
3384         ;;
3385         --enable-random|--disable-random)
3386             action=${opt%%-random}
3387             do_random ${action#--} $COMPONENT_LIST
3388         ;;
3389         --enable-random=*|--disable-random=*)
3390             action=${opt%%-random=*}
3391             do_random ${action#--} $optval
3392         ;;
3393         --enable-*=*|--disable-*=*)
3394             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3395             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3396             eval list=\$$(toupper $thing)_LIST
3397             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3398             list=$(filter "$name" $list)
3399             [ "$list" = "" ] && warn "Option $opt did not match anything"
3400             $action $list
3401         ;;
3402         --enable-?*|--disable-?*)
3403             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3404             if is_in $option $COMPONENT_LIST; then
3405                 test $action = disable && action=unset
3406                 eval $action \$$(toupper ${option%s})_LIST
3407             elif is_in $option $CMDLINE_SELECT; then
3408                 $action $option
3409             else
3410                 die_unknown $opt
3411             fi
3412         ;;
3413         --list-*)
3414             NAME="${opt#--list-}"
3415             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3416             NAME=${NAME%s}
3417             eval show_list $NAME \$$(toupper $NAME)_LIST
3418         ;;
3419         --help|-h) show_help
3420         ;;
3421         --fatal-warnings) enable fatal_warnings
3422         ;;
3423         *)
3424             optname="${opt%%=*}"
3425             optname="${optname#--}"
3426             optname=$(echo "$optname" | sed 's/-/_/g')
3427             if is_in $optname $CMDLINE_SET; then
3428                 eval $optname='$optval'
3429             elif is_in $optname $CMDLINE_APPEND; then
3430                 append $optname "$optval"
3431             else
3432                 die_unknown $opt
3433             fi
3434         ;;
3435     esac
3436 done
3437
3438 for e in $env; do
3439     eval "export $e"
3440 done
3441
3442 disabled logging && logfile=/dev/null
3443
3444 # Disable all the library-specific components if the library itself
3445 # is disabled, see AVCODEC_LIST and following _LIST variables.
3446
3447 disable_components(){
3448     disabled ${1} && disable $(
3449         eval components="\$$(toupper ${1})_COMPONENTS"
3450         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3451     )
3452 }
3453
3454 map 'disable_components $v' $LIBRARY_LIST
3455
3456 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3457 set >> $logfile
3458
3459 test -n "$valgrind" && toolchain="valgrind-memcheck"
3460
3461 case "$toolchain" in
3462     *-asan)
3463         cc_default="${toolchain%-asan}"
3464         add_cflags  -fsanitize=address
3465         add_ldflags -fsanitize=address
3466     ;;
3467     *-msan)
3468         cc_default="${toolchain%-msan}"
3469         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3470         add_ldflags -fsanitize=memory
3471     ;;
3472     *-tsan)
3473         cc_default="${toolchain%-tsan}"
3474         add_cflags  -fsanitize=thread -pie
3475         add_ldflags -fsanitize=thread -pie
3476         case "$toolchain" in
3477             gcc-tsan)
3478                 add_cflags  -fPIC
3479                 add_ldflags -fPIC
3480                 ;;
3481         esac
3482     ;;
3483     *-usan)
3484         cc_default="${toolchain%-usan}"
3485         add_cflags  -fsanitize=undefined
3486         add_ldflags -fsanitize=undefined
3487     ;;
3488     valgrind-*)
3489         target_exec_default="valgrind"
3490         case "$toolchain" in
3491             valgrind-massif)
3492                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3493                 ;;
3494             valgrind-memcheck)
3495                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3496                 ;;
3497         esac
3498     ;;
3499     msvc)
3500         # Check whether the current MSVC version needs the C99 converter.
3501         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3502         # support enough of C99 to build ffmpeg. Default to the new
3503         # behaviour if the regexp was unable to match anything, since this
3504         # successfully parses the version number of existing supported
3505         # versions that require the converter (MSVC 2010 and 2012).
3506         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3507         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3508             cc_default="cl"
3509         else
3510             cc_default="c99wrap cl"
3511         fi
3512         ld_default="$source_path/compat/windows/mslink"
3513         nm_default="dumpbin -symbols"
3514         ar_default="lib"
3515         case "$arch" in
3516         arm*)
3517             as_default="armasm"
3518             ;;
3519         esac
3520         target_os_default="win32"
3521         # Use a relative path for TMPDIR. This makes sure all the
3522         # ffconf temp files are written with a relative path, avoiding
3523         # issues with msys/win32 path conversion for MSVC parameters
3524         # such as -Fo<file> or -out:<file>.
3525         TMPDIR=.
3526     ;;
3527     icl)
3528         cc_default="icl"
3529         ld_default="xilink"
3530         nm_default="dumpbin -symbols"
3531         ar_default="xilib"
3532         target_os_default="win32"
3533         TMPDIR=.
3534     ;;
3535     gcov)
3536         add_cflags  -fprofile-arcs -ftest-coverage
3537         add_ldflags -fprofile-arcs -ftest-coverage
3538     ;;
3539     llvm-cov)
3540         add_cflags -fprofile-arcs -ftest-coverage
3541         add_ldflags --coverage
3542     ;;
3543     hardened)
3544         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3545         add_cflags   -fno-strict-overflow -fstack-protector-all
3546         add_ldflags  -Wl,-z,relro -Wl,-z,now
3547     ;;
3548     ?*)
3549         die "Unknown toolchain $toolchain"
3550     ;;
3551 esac
3552
3553 test -n "$cross_prefix" && enable cross_compile
3554
3555 if enabled cross_compile; then
3556     test -n "$arch" && test -n "$target_os" ||
3557         die "Must specify target arch and OS when cross-compiling"
3558 fi
3559
3560 ar_default="${cross_prefix}${ar_default}"
3561 cc_default="${cross_prefix}${cc_default}"
3562 cxx_default="${cross_prefix}${cxx_default}"
3563 nm_default="${cross_prefix}${nm_default}"
3564 pkg_config_default="${cross_prefix}${pkg_config_default}"
3565 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3566     ranlib_default="${cross_prefix}${ranlib_default} -D"
3567 else
3568     ranlib_default="${cross_prefix}${ranlib_default}"
3569 fi
3570 strip_default="${cross_prefix}${strip_default}"
3571 windres_default="${cross_prefix}${windres_default}"
3572
3573 sysinclude_default="${sysroot}/usr/include"
3574
3575 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3576     target_exec target_os yasmexe
3577 enabled cross_compile || host_cc_default=$cc
3578 set_default host_cc
3579
3580 pkg_config_fail_message=""
3581 if ! $pkg_config --version >/dev/null 2>&1; then
3582     warn "$pkg_config not found, library detection may fail."
3583     pkg_config=false
3584 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3585     pkg_config_fail_message="
3586 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3587 fi
3588
3589 if test $doxygen != $doxygen_default && \
3590   ! $doxygen --version >/dev/null 2>&1; then
3591     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3592 fi
3593
3594 exesuf() {
3595     case $1 in
3596         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3597     esac
3598 }
3599
3600 EXESUF=$(exesuf $target_os)
3601 HOSTEXESUF=$(exesuf $host_os)
3602
3603 # set temporary file name
3604 : ${TMPDIR:=$TEMPDIR}
3605 : ${TMPDIR:=$TMP}
3606 : ${TMPDIR:=/tmp}
3607
3608 if [ -n "$tempprefix" ] ; then
3609     mktemp(){
3610         echo $tempprefix.${HOSTNAME}.${UID}
3611     }
3612 elif ! check_cmd mktemp -u XXXXXX; then
3613     # simple replacement for missing mktemp
3614     # NOT SAFE FOR GENERAL USE
3615     mktemp(){
3616         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3617     }
3618 fi
3619
3620 tmpfile(){
3621     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3622         (set -C; exec > $tmp) 2>/dev/null ||
3623         die "Unable to create temporary file in $TMPDIR."
3624     append TMPFILES $tmp
3625     eval $1=$tmp
3626 }
3627
3628 trap 'rm -f -- $TMPFILES' EXIT
3629
3630 tmpfile TMPASM .asm
3631 tmpfile TMPC   .c
3632 tmpfile TMPCPP .cpp
3633 tmpfile TMPE   $EXESUF
3634 tmpfile TMPH   .h
3635 tmpfile TMPM   .m
3636 tmpfile TMPO   .o
3637 tmpfile TMPS   .S
3638 tmpfile TMPSH  .sh
3639 tmpfile TMPV   .ver
3640
3641 unset -f mktemp
3642
3643 chmod +x $TMPE
3644
3645 # make sure we can execute files in $TMPDIR
3646 cat > $TMPSH 2>> $logfile <<EOF
3647 #! /bin/sh
3648 EOF
3649 chmod +x $TMPSH >> $logfile 2>&1
3650 if ! $TMPSH >> $logfile 2>&1; then
3651     cat <<EOF
3652 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3653 variable to another directory and make sure that it is not mounted noexec.
3654 EOF
3655     die "Sanity test failed."
3656 fi
3657
3658 armasm_flags(){
3659     for flag; do
3660         case $flag in
3661             # Filter out MSVC cl.exe options from cflags that shouldn't
3662             # be passed to gas-preprocessor
3663             -M[TD]*)                                            ;;
3664             *)                  echo $flag                      ;;
3665         esac
3666    done
3667 }
3668
3669 ccc_flags(){
3670     for flag; do
3671         case $flag in
3672             -std=c99)           echo -c99                       ;;
3673             -mcpu=*)            echo -arch ${flag#*=}           ;;
3674             -mieee)             echo -ieee                      ;;
3675             -O*|-fast)          echo $flag                      ;;
3676             -fno-math-errno)    echo -assume nomath_errno       ;;
3677             -g)                 echo -g3                        ;;
3678             -Wall)              echo -msg_enable level2         ;;
3679             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3680             -Wl,*)              echo $flag                      ;;
3681             -f*|-W*)                                            ;;
3682             *)                  echo $flag                      ;;
3683         esac
3684    done
3685 }
3686
3687 cparser_flags(){
3688     for flag; do
3689         case $flag in
3690             -Wno-switch)             echo -Wno-switch-enum ;;
3691             -Wno-format-zero-length) ;;
3692             -Wdisabled-optimization) ;;
3693             -Wno-pointer-sign)       echo -Wno-other ;;
3694             *)                       echo $flag ;;
3695         esac
3696     done
3697 }
3698
3699 msvc_common_flags(){
3700     for flag; do
3701         case $flag in
3702             # In addition to specifying certain flags under the compiler
3703             # specific filters, they must be specified here as well or else the
3704             # generic catch all at the bottom will print the original flag.
3705             -Wall)                ;;
3706             -std=c99)             ;;
3707             # Common flags
3708             -fomit-frame-pointer) ;;
3709             -g)                   echo -Z7 ;;
3710             -fno-math-errno)      ;;
3711             -fno-common)          ;;
3712             -fno-signed-zeros)    ;;
3713             -fPIC)                ;;
3714             -mthumb)              ;;
3715             -march=*)             ;;
3716             -lz)                  echo zlib.lib ;;
3717             -lavifil32)           echo vfw32.lib ;;
3718             -lavicap32)           echo vfw32.lib user32.lib ;;
3719             -lx264)               echo libx264.lib ;;
3720             -l*)                  echo ${flag#-l}.lib ;;
3721             -LARGEADDRESSAWARE)   echo $flag ;;
3722             -L*)                  echo -libpath:${flag#-L} ;;
3723             *)                    echo $flag ;;
3724         esac
3725     done
3726 }
3727
3728 msvc_flags(){
3729     msvc_common_flags "$@"
3730     for flag; do
3731         case $flag in
3732             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3733                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3734                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3735                                        -wd4307 \
3736                                        -wd4273 -wd4554 -wd4701 ;;
3737         esac
3738     done
3739 }
3740
3741 icl_flags(){
3742     msvc_common_flags "$@"
3743     for flag; do
3744         case $flag in
3745             # Despite what Intel's documentation says -Wall, which is supported
3746             # on Windows, does enable remarks so disable them here.
3747             -Wall)                echo $flag -Qdiag-disable:remark ;;
3748             -std=c99)             echo -Qstd=c99 ;;
3749             -flto)                echo -ipo ;;
3750         esac
3751     done
3752 }
3753
3754 icc_flags(){
3755     for flag; do
3756         case $flag in
3757             -flto)                echo -ipo ;;
3758             *)                    echo $flag ;;
3759         esac
3760     done
3761 }
3762
3763 pgi_flags(){
3764     for flag; do
3765         case $flag in
3766             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3767             -fomit-frame-pointer) echo -Mnoframe ;;
3768             -g)                   echo -gopt ;;
3769             *)                    echo $flag ;;
3770         esac
3771     done
3772 }
3773
3774 suncc_flags(){
3775     for flag; do
3776         case $flag in
3777             -march=*|-mcpu=*)
3778                 case "${flag#*=}" in
3779                     native)                   echo -xtarget=native       ;;
3780                     v9|niagara)               echo -xarch=sparc          ;;
3781                     ultrasparc)               echo -xarch=sparcvis       ;;
3782                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3783                     i586|pentium)             echo -xchip=pentium        ;;
3784                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3785                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3786                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3787                     pentium4*)          echo -xtarget=pentium4           ;;
3788                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3789                     *-sse3)             echo -xarch=sse3                 ;;
3790                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3791                     bonnell)                   echo -xarch=ssse3         ;;
3792                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3793                     westmere)                  echo -xtarget=westmere    ;;
3794                     silvermont)                echo -xarch=sse4_2        ;;
3795                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3796                     core-avx*|ivybridge|haswell|broadwell)
3797                                                echo -xarch=avx           ;;
3798                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3799                     btver1)                    echo -xarch=amdsse4a      ;;
3800                     btver2|bdver*)             echo -xarch=avx           ;;
3801                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3802                     k8|opteron|athlon64|athlon-fx)
3803                                                echo -xarch=sse2a         ;;
3804                     athlon*)                   echo -xarch=pentium_proa  ;;
3805                 esac
3806                 ;;
3807             -std=c99)             echo -xc99              ;;
3808             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3809             -fPIC)                echo -KPIC -xcode=pic32 ;;
3810             -W*,*)                echo $flag              ;;
3811             -f*-*|-W*|-mimpure-text)                      ;;
3812             -shared)              echo -G                 ;;
3813             *)                    echo $flag              ;;
3814         esac
3815     done
3816 }
3817
3818 tms470_flags(){
3819     for flag; do
3820         case $flag in
3821             -march=*|-mcpu=*)
3822                 case "${flag#*=}" in
3823                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3824                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3825                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3826                     armv6*|arm11*)          echo -mv=6   ;;
3827                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3828                                             echo -mv=5e  ;;
3829                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3830                 esac
3831                 ;;
3832             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3833             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3834             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3835             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3836             -msoft-float)   echo --float_support=vfplib       ;;
3837             -O[0-3]|-mf=*)  echo $flag                        ;;
3838             -g)             echo -g -mn                       ;;
3839             -pds=*)         echo $flag                        ;;
3840             -D*|-I*)        echo $flag                        ;;
3841             --gcc|--abi=*)  echo $flag                        ;;
3842             -me)            echo $flag                        ;;
3843         esac
3844     done
3845 }
3846
3847 probe_cc(){
3848     pfx=$1
3849     _cc=$2
3850     first=$3
3851
3852     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3853     unset _ld_o _ldflags _ld_lib _ld_path
3854     unset _depflags _DEPCMD _DEPFLAGS
3855     _flags_filter=echo
3856
3857     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3858         true # no-op to avoid reading stdin in following checks
3859     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3860         _type=llvm_gcc
3861         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3862         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3863         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3864         _cflags_speed='-O3'
3865         _cflags_size='-Os'
3866     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3867         _type=gcc
3868         gcc_version=$($_cc --version | head -n1)
3869         gcc_basever=$($_cc -dumpversion)
3870         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3871         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3872         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3873         case $gcc_basever in
3874             2) ;;
3875             2.*) ;;
3876             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3877         esac
3878         if [ "$first" = true ]; then
3879             case $gcc_basever in
3880                 4.2*)
3881                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3882             esac
3883         fi
3884         _cflags_speed='-O3'
3885         _cflags_size='-Os'
3886     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3887         _type=icc
3888         _ident=$($_cc --version | head -n1)
3889         _depflags='-MMD'
3890         _cflags_speed='-O3'
3891         _cflags_size='-Os'
3892         _cflags_noopt='-O1'
3893         _flags_filter=icc_flags
3894     elif $_cc -v 2>&1 | grep -q xlc; then
3895         _type=xlc
3896         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3897         _cflags_speed='-O5'
3898         _cflags_size='-O5 -qcompact'
3899     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3900         _type=ccc
3901         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3902         _DEPFLAGS='-M'
3903         _cflags_speed='-fast'
3904         _cflags_size='-O1'
3905         _flags_filter=ccc_flags
3906     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3907         test -d "$sysroot" || die "No valid sysroot specified."
3908         _type=armcc
3909         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3910         armcc_conf="$PWD/armcc.conf"
3911         $_cc --arm_linux_configure                 \
3912              --arm_linux_config_file="$armcc_conf" \
3913              --configure_sysroot="$sysroot"        \
3914              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3915              die "Error creating armcc configuration file."
3916         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3917         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3918         as_default="${cross_prefix}gcc"
3919         _depflags='-MMD'
3920         _cflags_speed='-O3'
3921         _cflags_size='-Os'
3922     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3923         _type=tms470
3924         _ident=$($_cc -version | head -n1 | tr -s ' ')
3925         _flags='--gcc --abi=eabi -me'
3926         _cc_e='-ppl -fe=$@'
3927         _cc_o='-fe=$@'
3928         _depflags='-ppa -ppd=$(@:.o=.d)'
3929         _cflags_speed='-O3 -mf=5'
3930         _cflags_size='-O3 -mf=2'
3931         _flags_filter=tms470_flags
3932     elif $_cc -v 2>&1 | grep -q clang; then
3933         _type=clang
3934         _ident=$($_cc --version 2>/dev/null | head -n1)
3935         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3936         _cflags_speed='-O3'
3937         _cflags_size='-Os'
3938     elif $_cc -V 2>&1 | grep -q Sun; then
3939         _type=suncc
3940         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3941         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3942         _DEPFLAGS='-xM1 -xc99'
3943         _ldflags='-std=c99'
3944         _cflags_speed='-O5'
3945         _cflags_size='-O5 -xspace'
3946         _flags_filter=suncc_flags
3947     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3948         _type=pathscale
3949         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3950         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3951         _cflags_speed='-O2'
3952         _cflags_size='-Os'
3953         _flags_filter='filter_out -Wdisabled-optimization'
3954     elif $_cc -v 2>&1 | grep -q Open64; then
3955         _type=open64
3956         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3957         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3958         _cflags_speed='-O2'
3959         _cflags_size='-Os'
3960         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3961     elif $_cc -V 2>&1 | grep -q Portland; then
3962         _type=pgi
3963         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3964         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3965         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3966         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3967         _cflags_noopt="-O"
3968         _flags_filter=pgi_flags
3969     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3970         _type=armasm
3971         _ident=$($_cc | head -n1)
3972         # 4509: "This form of conditional instruction is deprecated"
3973         _flags="-nologo -ignore 4509"
3974         _flags_filter=armasm_flags
3975     elif $_cc 2>&1 | grep -q Intel; then
3976         _type=icl
3977         _ident=$($_cc 2>&1 | head -n1)
3978         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3979         # Not only is O3 broken on 13.x+ but it is slower on all previous
3980         # versions (tested) as well.
3981         _cflags_speed="-O2"
3982         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3983         if $_cc 2>&1 | grep -q Linker; then
3984             _ld_o='-out:$@'
3985         else
3986             _ld_o='-Fe$@'
3987         fi
3988         _cc_o='-Fo$@'
3989         _cc_e='-P'
3990         _flags_filter=icl_flags
3991         _ld_lib='lib%.a'
3992         _ld_path='-libpath:'
3993         # -Qdiag-error to make icl error when seeing certain unknown arguments
3994         _flags='-nologo -Qdiag-error:4044,10157'
3995         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3996         # with MSVC which enables it by default.
3997         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3998         disable stripping
3999     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4000         _type=msvc
4001         _ident=$($_cc 2>&1 | head -n1)
4002         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4003         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4004         _cflags_speed="-O2"
4005         _cflags_size="-O1"
4006         if $_cc -nologo- 2>&1 | grep -q Linker; then
4007             _ld_o='-out:$@'
4008         else
4009             _ld_o='-Fe$@'
4010         fi
4011         _cc_o='-Fo$@'
4012         _cc_e='-P -Fi$@'
4013         _flags_filter=msvc_flags
4014         _ld_lib='lib%.a'
4015         _ld_path='-libpath:'
4016         _flags='-nologo'
4017         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4018         disable stripping
4019     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4020         _type=cparser
4021         _ident=$($_cc --version | head -n1)
4022         _depflags='-MMD'
4023         _cflags_speed='-O4'
4024         _cflags_size='-O2'
4025         _flags_filter=cparser_flags
4026     fi
4027
4028     eval ${pfx}_type=\$_type
4029     eval ${pfx}_ident=\$_ident
4030 }
4031
4032 set_ccvars(){
4033     eval ${1}_C=\${_cc_c-\${${1}_C}}
4034     eval ${1}_E=\${_cc_e-\${${1}_E}}
4035     eval ${1}_O=\${_cc_o-\${${1}_O}}
4036
4037     if [ -n "$_depflags" ]; then
4038         eval ${1}_DEPFLAGS=\$_depflags
4039     else
4040         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4041         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4042         eval DEP${1}FLAGS=\$_flags
4043     fi
4044 }
4045
4046 probe_cc cc "$cc" "true"
4047 cflags_filter=$_flags_filter
4048 cflags_speed=$_cflags_speed
4049 cflags_size=$_cflags_size
4050 cflags_noopt=$_cflags_noopt
4051 add_cflags $_flags $_cflags
4052 cc_ldflags=$_ldflags
4053 set_ccvars CC
4054
4055 probe_cc hostcc "$host_cc"
4056 host_cflags_filter=$_flags_filter
4057 add_host_cflags  $_flags $_cflags
4058 set_ccvars HOSTCC
4059
4060 test -n "$cc_type" && enable $cc_type ||
4061     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4062
4063 : ${as_default:=$cc}
4064 : ${objcc_default:=$cc}
4065 : ${dep_cc_default:=$cc}
4066 : ${ld_default:=$cc}
4067 : ${host_ld_default:=$host_cc}
4068 set_default ar as objcc dep_cc ld ln_s host_ld windres
4069
4070 probe_cc as "$as"
4071 asflags_filter=$_flags_filter
4072 add_asflags $_flags $_cflags
4073 set_ccvars AS
4074
4075 probe_cc objcc "$objcc"
4076 objcflags_filter=$_flags_filter
4077 add_objcflags $_flags $_cflags
4078 set_ccvars OBJC
4079
4080 probe_cc ld "$ld"
4081 ldflags_filter=$_flags_filter
4082 add_ldflags $_flags $_ldflags
4083 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4084 LD_O=${_ld_o-$LD_O}
4085 LD_LIB=${_ld_lib-$LD_LIB}
4086 LD_PATH=${_ld_path-$LD_PATH}
4087
4088 probe_cc hostld "$host_ld"
4089 host_ldflags_filter=$_flags_filter
4090 add_host_ldflags $_flags $_ldflags
4091 HOSTLD_O=${_ld_o-$HOSTLD_O}
4092
4093 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4094     probe_cc depcc "$dep_cc"
4095     CCDEP=${_DEPCMD:-$DEPCMD}
4096     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4097     DEPCCFLAGS=$_flags
4098 fi
4099
4100 if $ar 2>&1 | grep -q Microsoft; then
4101     arflags="-nologo"
4102     ar_o='-out:$@'
4103 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4104     arflags="rq"
4105     ar_o='$@'
4106 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4107     arflags='-Xany -r -c'
4108     ar_o='$@'
4109 elif $ar 2>&1 | grep -q "\[D\] "; then
4110     arflags="rcD"
4111     ar_o='$@'
4112 else
4113     arflags="rc"
4114     ar_o='$@'
4115 fi
4116
4117 add_cflags $extra_cflags
4118 add_cxxflags $extra_cxxflags
4119 add_objcflags $extra_objcflags
4120 add_asflags $extra_cflags
4121
4122 if test -n "$sysroot"; then
4123     case "$cc_type" in
4124         gcc|llvm_gcc|clang)
4125             add_cppflags --sysroot="$sysroot"
4126             add_ldflags --sysroot="$sysroot"
4127 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4128             add_cppflags -isysroot "$sysroot"
4129             add_ldflags -isysroot "$sysroot"
4130         ;;
4131         tms470)
4132             add_cppflags -I"$sysinclude"
4133             add_ldflags  --sysroot="$sysroot"
4134         ;;
4135     esac
4136 fi
4137
4138 if test "$cpu" = host; then
4139     enabled cross_compile &&
4140         die "--cpu=host makes no sense when cross-compiling."
4141
4142     case "$cc_type" in
4143         gcc|llvm_gcc)
4144             check_native(){
4145                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4146                 sed -n "/cc1.*$1=/{
4147                             s/.*$1=\\([^ ]*\\).*/\\1/
4148                             p
4149                             q
4150                         }" $TMPE
4151             }
4152             cpu=$(check_native -march || check_native -mcpu)
4153         ;;
4154         clang)
4155             check_native(){
4156                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4157                 sed -n "/cc1.*-target-cpu /{
4158                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4159                             p
4160                             q
4161                         }" $TMPE
4162             }
4163             cpu=$(check_native -march)
4164         ;;
4165     esac
4166
4167     test "${cpu:-host}" = host &&
4168         die "--cpu=host not supported with compiler $cc"
4169 fi
4170
4171 # Deal with common $arch aliases
4172 case "$arch" in
4173     aarch64|arm64)
4174         arch="aarch64"
4175     ;;
4176     arm*|iPad*|iPhone*)
4177         arch="arm"
4178     ;;
4179     mips*|IP*)
4180         case "$arch" in
4181         *el)
4182             add_cppflags -EL
4183             add_ldflags -EL
4184         ;;
4185         *eb)
4186             add_cppflags -EB
4187             add_ldflags -EB
4188         ;;
4189         esac
4190         arch="mips"
4191     ;;
4192     parisc*|hppa*)
4193         arch="parisc"
4194     ;;
4195     "Power Macintosh"|ppc*|powerpc*)
4196         arch="ppc"
4197     ;;
4198     s390|s390x)
4199         arch="s390"
4200     ;;
4201     sh4|sh)
4202         arch="sh4"
4203     ;;
4204     sun4u|sparc*)
4205         arch="sparc"
4206     ;;
4207     tilegx|tile-gx)
4208         arch="tilegx"
4209     ;;
4210     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4211         arch="x86"
4212     ;;
4213 esac
4214
4215 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4216 enable $arch
4217
4218 # Add processor-specific flags
4219 if enabled aarch64; then
4220
4221     case $cpu in
4222         armv*)
4223             cpuflags="-march=$cpu"
4224         ;;
4225         *)
4226             cpuflags="-mcpu=$cpu"
4227         ;;
4228     esac
4229
4230 elif enabled alpha; then
4231
4232     cpuflags="-mcpu=$cpu"
4233
4234 elif enabled arm; then
4235
4236     check_arm_arch() {
4237         check_cpp_condition stddef.h \
4238             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4239             $cpuflags
4240     }
4241
4242     probe_arm_arch() {
4243         if   check_arm_arch 4;        then echo armv4
4244         elif check_arm_arch 4T;       then echo armv4t
4245         elif check_arm_arch 5;        then echo armv5
4246         elif check_arm_arch 5E;       then echo armv5e
4247         elif check_arm_arch 5T;       then echo armv5t
4248         elif check_arm_arch 5TE;      then echo armv5te
4249         elif check_arm_arch 5TEJ;     then echo armv5te
4250         elif check_arm_arch 6;        then echo armv6
4251         elif check_arm_arch 6J;       then echo armv6j
4252         elif check_arm_arch 6K;       then echo armv6k
4253         elif check_arm_arch 6Z;       then echo armv6z
4254         elif check_arm_arch 6ZK;      then echo armv6zk
4255         elif check_arm_arch 6T2;      then echo armv6t2
4256         elif check_arm_arch 7;        then echo armv7
4257         elif check_arm_arch 7A  7_A;  then echo armv7-a
4258         elif check_arm_arch 7S;       then echo armv7-a
4259         elif check_arm_arch 7R  7_R;  then echo armv7-r
4260         elif check_arm_arch 7M  7_M;  then echo armv7-m
4261         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4262         elif check_arm_arch 8A  8_A;  then echo armv8-a
4263         fi
4264     }
4265
4266     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4267
4268     case $cpu in
4269         armv*)
4270             cpuflags="-march=$cpu"
4271             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4272         ;;
4273         *)
4274             cpuflags="-mcpu=$cpu"
4275             case $cpu in
4276                 cortex-a*)                               subarch=armv7a  ;;
4277                 cortex-r*)                               subarch=armv7r  ;;
4278                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4279                 arm11*)                                  subarch=armv6   ;;
4280                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4281                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4282                 *)                             subarch=$(probe_arm_arch) ;;
4283             esac
4284         ;;
4285     esac
4286
4287     case "$subarch" in
4288         armv5t*)    enable fast_clz                ;;
4289         armv[6-8]*)
4290             enable fast_clz
4291             disabled fast_unaligned || enable fast_unaligned
4292             ;;
4293     esac
4294
4295 elif enabled avr32; then
4296
4297     case $cpu in
4298         ap7[02]0[0-2])
4299             subarch="avr32_ap"
4300             cpuflags="-mpart=$cpu"
4301         ;;
4302         ap)
4303             subarch="avr32_ap"
4304             cpuflags="-march=$cpu"
4305         ;;
4306         uc3[ab]*)
4307             subarch="avr32_uc"
4308             cpuflags="-mcpu=$cpu"
4309         ;;
4310         uc)
4311             subarch="avr32_uc"
4312             cpuflags="-march=$cpu"
4313         ;;
4314     esac
4315
4316 elif enabled bfin; then
4317
4318     cpuflags="-mcpu=$cpu"
4319
4320 elif enabled mips; then
4321
4322     cpuflags="-march=$cpu"
4323
4324     if [ "$cpu" != "generic" ]; then
4325         disable mips32r2
4326         disable mips32r5
4327         disable mips64r2
4328         disable mips32r6
4329         disable mips64r6
4330         disable loongson2
4331         disable loongson3
4332
4333         case $cpu in
4334             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4335                 enable mips32r2
4336                 disable msa
4337             ;;
4338             p5600|i6400)
4339                 disable mipsdsp
4340                 disable mipsdspr2
4341             ;;
4342             loongson*)
4343                 enable loongson2
4344                 enable loongson3
4345                 enable local_aligned_8 local_aligned_16 local_aligned_32
4346                 enable simd_align_16
4347                 enable fast_64bit
4348                 enable fast_clz
4349                 enable fast_cmov
4350                 enable fast_unaligned
4351                 disable aligned_stack
4352                 case $cpu in
4353                     loongson3*)
4354                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4355                     ;;
4356                     loongson2e)
4357                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4358                     ;;
4359                     loongson2f)
4360                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4361                     ;;
4362                 esac
4363             ;;
4364             *)
4365                 # Unknown CPU. Disable everything.
4366                 warn "unknown CPU. Disabling all MIPS optimizations."
4367                 disable mipsfpu
4368                 disable mipsdsp
4369                 disable mipsdspr2
4370                 disable msa
4371                 disable mmi
4372             ;;
4373         esac
4374
4375         case $cpu in
4376             24kc)
4377                 disable mipsfpu
4378                 disable mipsdsp
4379                 disable mipsdspr2
4380             ;;
4381             24kf*)
4382                 disable mipsdsp
4383                 disable mipsdspr2
4384             ;;
4385             24kec|34kc|1004kc)
4386                 disable mipsfpu
4387                 disable mipsdspr2
4388             ;;
4389             24kef*|34kf*|1004kf*)
4390                 disable mipsdspr2
4391             ;;
4392             74kc)
4393                 disable mipsfpu
4394             ;;
4395             p5600)
4396                 enable mips32r5
4397                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4398             ;;
4399             i6400)
4400                 enable mips64r6
4401                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4402             ;;
4403         esac
4404     else
4405         # We do not disable anything. Is up to the user to disable the unwanted features.
4406         warn 'generic cpu selected'
4407     fi
4408
4409 elif enabled ppc; then
4410
4411     disable ldbrx
4412
4413     case $(tolower $cpu) in
4414         601|ppc601|powerpc601)
4415             cpuflags="-mcpu=601"
4416             disable altivec
4417         ;;
4418         603*|ppc603*|powerpc603*)
4419             cpuflags="-mcpu=603"
4420             disable altivec
4421         ;;
4422         604*|ppc604*|powerpc604*)
4423             cpuflags="-mcpu=604"
4424             disable altivec
4425         ;;
4426         g3|75*|ppc75*|powerpc75*)
4427             cpuflags="-mcpu=750"
4428             disable altivec
4429         ;;
4430         g4|745*|ppc745*|powerpc745*)
4431             cpuflags="-mcpu=7450"
4432             disable vsx
4433         ;;
4434         74*|ppc74*|powerpc74*)
4435             cpuflags="-mcpu=7400"
4436             disable vsx
4437         ;;
4438         g5|970|ppc970|powerpc970)
4439             cpuflags="-mcpu=970"
4440             disable vsx
4441         ;;
4442         power[3-6]*)
4443             cpuflags="-mcpu=$cpu"
4444             disable vsx
4445         ;;
4446         power[7-8]*)
4447             cpuflags="-mcpu=$cpu"
4448         ;;
4449         cell)
4450             cpuflags="-mcpu=cell"
4451             enable ldbrx
4452             disable vsx
4453         ;;
4454         e500mc)
4455             cpuflags="-mcpu=e500mc"
4456             disable altivec
4457         ;;
4458         e500v2)
4459             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4460             disable altivec
4461             disable dcbzl
4462         ;;
4463         e500)
4464             cpuflags="-mcpu=8540 -mhard-float"
4465             disable altivec
4466             disable dcbzl
4467         ;;
4468     esac
4469
4470 elif enabled sparc; then
4471
4472     case $cpu in
4473         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4474             cpuflags="-mcpu=$cpu"
4475         ;;
4476         ultrasparc*|niagara[234])
4477             cpuflags="-mcpu=$cpu"
4478         ;;
4479     esac
4480
4481 elif enabled x86; then
4482
4483     case $cpu in
4484         i[345]86|pentium)
4485             cpuflags="-march=$cpu"
4486             disable i686
4487             disable mmx
4488         ;;
4489         # targets that do NOT support nopl and conditional mov (cmov)
4490         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4491             cpuflags="-march=$cpu"
4492             disable i686
4493         ;;
4494         # targets that do support nopl and conditional mov (cmov)
4495         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4496         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4497             cpuflags="-march=$cpu"
4498             enable i686
4499             enable fast_cmov
4500         ;;
4501         # targets that do support conditional mov but on which it's slow
4502         pentium4|pentium4m|prescott|nocona)
4503             cpuflags="-march=$cpu"
4504             enable i686
4505             disable fast_cmov
4506         ;;
4507     esac
4508
4509 fi
4510
4511 if [ "$cpu" != generic ]; then
4512     add_cflags  $cpuflags
4513     add_asflags $cpuflags
4514     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4515 fi
4516
4517 # compiler sanity check
4518 check_exec <<EOF
4519 int main(void){ return 0; }
4520 EOF
4521 if test "$?" != 0; then
4522     echo "$cc is unable to create an executable file."
4523     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4524         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4525         echo "Only do this if you know what cross compiling means."
4526     fi
4527     die "C compiler test failed."
4528 fi
4529
4530 add_cppflags -D_ISOC99_SOURCE
4531 add_cxxflags -D__STDC_CONSTANT_MACROS
4532 add_cxxflags -std=c++11
4533 check_cflags -std=c99
4534 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4535 #include <stdlib.h>
4536 EOF
4537 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4538 #include <stdlib.h>
4539 EOF
4540
4541 add_host_cppflags -D_ISOC99_SOURCE
4542 check_host_cflags -std=c99
4543 check_host_cflags -Wall
4544 check_host_cflags -O3
4545
4546 check_64bit(){
4547     arch32=$1
4548     arch64=$2
4549     expr=$3
4550     check_code cc "" "int test[2*($expr) - 1]" &&
4551         subarch=$arch64 || subarch=$arch32
4552 }
4553
4554 case "$arch" in
4555     aarch64|alpha|ia64)
4556         spic=$shared
4557     ;;
4558     mips)
4559         check_64bit mips mips64 '_MIPS_SIM > 1'
4560         spic=$shared
4561     ;;
4562     parisc)
4563         check_64bit parisc parisc64 'sizeof(void *) > 4'
4564         spic=$shared
4565     ;;
4566     ppc)
4567         check_64bit ppc ppc64 'sizeof(void *) > 4'
4568         spic=$shared
4569     ;;
4570     s390)
4571         check_64bit s390 s390x 'sizeof(void *) > 4'
4572         spic=$shared
4573     ;;
4574     sparc)
4575         check_64bit sparc sparc64 'sizeof(void *) > 4'
4576         spic=$shared
4577     ;;
4578     x86)
4579         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4580         # Treat x32 as x64 for now. Note it also needs spic=$shared
4581         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4582             subarch=x86_64
4583         if test "$subarch" = "x86_64"; then
4584             spic=$shared
4585         fi
4586     ;;
4587     ppc)
4588         check_cc <<EOF && subarch="ppc64"
4589         int test[(int)sizeof(char*) - 7];
4590 EOF
4591     ;;
4592 esac
4593
4594 enable $subarch
4595 enabled spic && enable_weak pic
4596
4597 # OS specific
4598 case $target_os in
4599     aix)
4600         SHFLAGS=-shared
4601         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4602         enabled shared && add_ldflags -Wl,-brtl
4603         ;;
4604     android)
4605         disable symver
4606         enable section_data_rel_ro
4607         SLIB_INSTALL_NAME='$(SLIBNAME)'
4608         SLIB_INSTALL_LINKS=
4609         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4610         ;;
4611     haiku)
4612         prefix_default="/boot/common"
4613         network_extralibs="-lnetwork"
4614         host_libs=
4615         ;;
4616     sunos)
4617         SHFLAGS='-shared -Wl,-h,$$(@F)'
4618         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4619         network_extralibs="-lsocket -lnsl"
4620         add_cppflags -D__EXTENSIONS__
4621         # When using suncc to build, the Solaris linker will mark
4622         # an executable with each instruction set encountered by
4623         # the Solaris assembler.  As our libraries contain their own
4624         # guards for processor-specific code, instead suppress
4625         # generation of the HWCAPS ELF section on Solaris x86 only.
4626         enabled_all suncc x86 &&
4627             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4628             add_ldflags -Wl,-M,mapfile
4629         nm_default='nm -P -g'
4630         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4631         ;;
4632     netbsd)
4633         disable symver
4634         oss_indev_extralibs="-lossaudio"
4635         oss_outdev_extralibs="-lossaudio"
4636         enabled gcc || check_ldflags -Wl,-zmuldefs
4637         ;;
4638     openbsd|bitrig)
4639         disable symver
4640         SHFLAGS='-shared'
4641         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4642         SLIB_INSTALL_LINKS=
4643         oss_indev_extralibs="-lossaudio"
4644         oss_outdev_extralibs="-lossaudio"
4645         ;;
4646     dragonfly)
4647         disable symver
4648         ;;
4649     freebsd)
4650         ;;
4651     bsd/os)
4652         add_extralibs -lpoll -lgnugetopt
4653         strip="strip -d"
4654         ;;
4655     darwin)
4656         enabled ppc && add_asflags -force_cpusubtype_ALL
4657         install_name_dir_default='$(SHLIBDIR)'
4658         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4659         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4660         strip="${strip} -x"
4661         add_ldflags -Wl,-dynamic,-search_paths_first
4662         SLIBSUF=".dylib"
4663         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4664         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4665         objformat="macho"
4666         enabled x86_64 && objformat="macho64"
4667         enabled_any pic shared x86_64 ||
4668             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4669         check_header dispatch/dispatch.h &&
4670             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4671         ;;
4672     msys*)
4673         die "Native MSYS builds are discouraged, please use the MINGW environment."
4674         ;;
4675     mingw32*|mingw64*)
4676         if test $target_os = "mingw32ce"; then
4677             disable network
4678         else
4679             target_os=mingw32
4680         fi
4681         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4682         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4683         LIBTARGET=i386
4684         if enabled x86_64; then
4685             LIBTARGET="i386:x86-64"
4686         elif enabled arm; then
4687             LIBTARGET=arm-wince
4688         fi
4689         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4690         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4691         shlibdir_default="$bindir_default"
4692         SLIBPREF=""
4693         SLIBSUF=".dll"
4694         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4695         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4696         dlltool="${cross_prefix}dlltool"
4697         if check_cmd lib.exe -list; then
4698             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4699             if enabled x86_64; then
4700                 LIBTARGET=x64
4701             fi
4702         elif check_cmd $dlltool --version; then
4703             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4704         fi
4705         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4706         SLIB_INSTALL_LINKS=
4707         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4708         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4709         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4710         objformat="win32"
4711         ranlib=:
4712         enable dos_paths
4713         check_ldflags -Wl,--nxcompat,--dynamicbase
4714         # Lets work around some stupidity in binutils.
4715         # ld will strip relocations from executables even though we need them
4716         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4717         # however ld then forgets what the entry point should be (oops) so we
4718         # have to manually (re)set it.
4719         if enabled x86_32; then
4720             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4721         elif enabled x86_64; then
4722             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4723             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4724             # Set image base >4GB for extra entropy with HEASLR
4725             add_ldexeflags -Wl,--image-base,0x140000000
4726             append SHFLAGS -Wl,--image-base,0x180000000
4727         fi
4728         ;;
4729     win32|win64)
4730         disable symver
4731         if enabled shared; then
4732             # Link to the import library instead of the normal static library
4733             # for shared libs.
4734             LD_LIB='%.lib'
4735             # Cannot build both shared and static libs with MSVC or icl.
4736             disable static
4737         fi
4738         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4739         shlibdir_default="$bindir_default"
4740         SLIBPREF=""
4741         SLIBSUF=".dll"
4742         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4743         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4744         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4745         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4746         SLIB_INSTALL_LINKS=
4747         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4748         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4749         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4750         objformat="win32"
4751         ranlib=:
4752         enable dos_paths
4753         ;;
4754     cygwin*)
4755         target_os=cygwin
4756         shlibdir_default="$bindir_default"
4757         SLIBPREF="cyg"
4758         SLIBSUF=".dll"
4759         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4760         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4761         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4762         SLIB_INSTALL_LINKS=
4763         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4764         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4765         objformat="win32"
4766         enable dos_paths
4767         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4768         ;;
4769     *-dos|freedos|opendos)
4770         network_extralibs="-lsocket"
4771         objformat="coff"
4772         enable dos_paths
4773         add_cppflags -U__STRICT_ANSI__
4774         ;;
4775     linux)
4776         enable dv1394
4777         enable section_data_rel_ro
4778         ;;
4779     irix*)
4780         target_os=irix
4781         ranlib="echo ignoring ranlib"
4782         ;;
4783     os/2*)
4784         strip="lxlite -CS"
4785         objformat="aout"
4786         add_cppflags -D_GNU_SOURCE
4787         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4788         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4789         LIBSUF="_s.a"
4790         SLIBPREF=""
4791         SLIBSUF=".dll"
4792         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4793         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4794         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
4795             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
4796             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
4797             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
4798             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
4799         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
4800             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
4801         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4802         SLIB_INSTALL_LINKS=
4803         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
4804         enable dos_paths
4805         enable_weak os2threads
4806         ;;
4807     gnu/kfreebsd)
4808         add_cppflags -D_BSD_SOURCE
4809         ;;
4810     gnu)
4811         ;;
4812     qnx)
4813         add_cppflags -D_QNX_SOURCE
4814         network_extralibs="-lsocket"
4815         ;;
4816     symbian)
4817         SLIBSUF=".dll"
4818         enable dos_paths
4819         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4820         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4821         add_ldflags -Wl,--target1-abs,--no-undefined \
4822                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4823                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4824         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4825                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4826                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4827         ;;
4828     osf1)
4829         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4830         ;;
4831     minix)
4832         ;;
4833     plan9)
4834         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4835                      -D_REENTRANT_SOURCE        \
4836                      -D_RESEARCH_SOURCE         \
4837                      -DFD_SETSIZE=96            \
4838                      -DHAVE_SOCK_OPTS
4839         add_compat strtod.o strtod=avpriv_strtod
4840         network_extralibs='-lbsd'
4841         exeobjs=compat/plan9/main.o
4842         disable ffserver
4843         cp_f='cp'
4844         ;;
4845     none)
4846         ;;
4847     *)
4848         die "Unknown OS '$target_os'."
4849         ;;
4850 esac
4851
4852 # test if creating links works
4853 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4854 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4855 mkdir "$link_dest"
4856 $ln_s "$link_dest" "$link_name"
4857 touch "$link_dest/test_file"
4858 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4859     # create link to source path
4860     [ -e src ] && rm src
4861     $ln_s "$source_path" src
4862     source_link=src
4863 else
4864     # creating directory links doesn't work
4865     # fall back to using the full source path
4866     source_link="$source_path"
4867 fi
4868 # cleanup
4869 rm -r "$link_dest"
4870 rm -r "$link_name"
4871
4872 # determine libc flavour
4873
4874 probe_libc(){
4875     pfx=$1
4876     pfx_no_=${pfx%_}
4877     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4878     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4879         eval ${pfx}libc_type=uclibc
4880         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4881     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4882         eval ${pfx}libc_type=glibc
4883         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4884     # MinGW headers can be installed on Cygwin, so check for newlib first.
4885     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4886         eval ${pfx}libc_type=newlib
4887         add_${pfx}cppflags -U__STRICT_ANSI__
4888     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4889     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4890         eval ${pfx}libc_type=mingw64
4891         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4892             add_compat msvcrt/snprintf.o
4893             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4894         fi
4895         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4896         eval test \$${pfx_no_}cc_type = "gcc" &&
4897             add_${pfx}cppflags -D__printf__=__gnu_printf__
4898     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4899          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4900         eval ${pfx}libc_type=mingw32
4901         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4902             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4903             die "ERROR: MinGW32 runtime version must be >= 3.15."
4904         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4905         eval test \$${pfx_no_}cc_type = "gcc" &&
4906             add_${pfx}cppflags -D__printf__=__gnu_printf__
4907     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4908         eval ${pfx}libc_type=msvcrt
4909         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4910             if [ "$pfx" = host_ ]; then
4911                 add_host_cppflags -Dsnprintf=_snprintf
4912             else
4913                 add_compat strtod.o strtod=avpriv_strtod
4914                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4915                                              _snprintf=avpriv_snprintf  \
4916                                              vsnprintf=avpriv_vsnprintf
4917             fi
4918         fi
4919         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4920         # 0x601 by default unless something else is set by the user.
4921         # This can easily lead to us detecting functions only present
4922         # in such new versions and producing binaries requiring windows 7.0.
4923         # Therefore explicitly set the default to XP unless the user has
4924         # set something else on the command line.
4925         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4926         # family. For these cases, configure is free to use any functions
4927         # found in the SDK headers by default. (Alternatively, we could force
4928         # _WIN32_WINNT to 0x0602 in that case.)
4929         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4930             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4931 #ifdef WINAPI_FAMILY
4932 #include <winapifamily.h>
4933 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4934 #error not desktop
4935 #endif
4936 #endif
4937 EOF
4938     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4939         eval ${pfx}libc_type=klibc
4940     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4941         eval ${pfx}libc_type=bionic
4942     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4943         eval ${pfx}libc_type=solaris
4944         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4945     fi
4946     check_${pfx}cc <<EOF
4947 #include <time.h>
4948 void *v = localtime_r;
4949 EOF
4950 test "$?" != 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
4951 #include <time.h>
4952 void *v = localtime_r;
4953 EOF
4954
4955 }
4956
4957 probe_libc
4958 test -n "$libc_type" && enable libc_$libc_type
4959 probe_libc host_
4960 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4961
4962 case $libc_type in
4963     bionic)
4964         add_compat strtod.o strtod=avpriv_strtod
4965         ;;
4966 esac
4967
4968 # hacks for compiler/libc/os combinations
4969
4970 if enabled_all tms470 libc_glibc; then
4971     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4972     add_cppflags -D__USER_LABEL_PREFIX__=
4973     add_cppflags -D__builtin_memset=memset
4974     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4975     add_cflags   -pds=48    # incompatible redefinition of macro
4976 fi
4977
4978 if enabled_all ccc libc_glibc; then
4979     add_ldflags -Wl,-z,now  # calls to libots crash without this
4980 fi
4981
4982 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4983     add_cppflags '-I\$(SRC_PATH)/compat/float'
4984
4985 esc(){
4986     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4987 }
4988
4989 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4990
4991 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4992
4993 set_default libdir
4994 : ${shlibdir_default:="$libdir"}
4995 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4996
4997 set_default $PATHS_LIST
4998 set_default nm
4999
5000 # we need to build at least one lib type
5001 if ! enabled_any static shared; then
5002     cat <<EOF
5003 At least one library type must be built.
5004 Specify --enable-static to build the static libraries or --enable-shared to
5005 build the shared libraries as well. To only build the shared libraries specify
5006 --disable-static in addition to --enable-shared.
5007 EOF
5008     exit 1
5009 fi
5010
5011 die_license_disabled() {
5012     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
5013 }
5014
5015 die_license_disabled_gpl() {
5016     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
5017 }
5018
5019 die_license_disabled gpl frei0r
5020 die_license_disabled gpl libcdio
5021 die_license_disabled gpl librubberband
5022 die_license_disabled gpl libsmbclient
5023 die_license_disabled gpl libvidstab
5024 die_license_disabled gpl libx264
5025 die_license_disabled gpl libx265
5026 die_license_disabled gpl libxavs
5027 die_license_disabled gpl libxvid
5028 die_license_disabled gpl x11grab
5029
5030 die_license_disabled nonfree cuda
5031 die_license_disabled nonfree cuvid
5032 die_license_disabled nonfree libfaac
5033 die_license_disabled nonfree libnpp
5034 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
5035 enabled gpl && die_license_disabled_gpl nonfree openssl
5036
5037 die_license_disabled version3 gmp
5038 die_license_disabled version3 libopencore_amrnb
5039 die_license_disabled version3 libopencore_amrwb
5040 die_license_disabled version3 libsmbclient
5041 die_license_disabled version3 libvo_amrwbenc
5042
5043 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
5044
5045 disabled optimizations || check_cflags -fomit-frame-pointer
5046
5047 enable_weak_pic() {
5048     disabled pic && return
5049     enable pic
5050     add_cppflags -DPIC
5051     case "$target_os" in
5052     mingw*|cygwin*)
5053         ;;
5054     *)
5055         add_cflags -fPIC
5056         ;;
5057     esac
5058     add_asflags  -fPIC
5059 }
5060
5061 enabled pic && enable_weak_pic
5062
5063 check_cc <<EOF || die "Symbol mangling check failed."
5064 int ff_extern;
5065 EOF
5066 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5067 extern_prefix=${sym%%ff_extern*}
5068
5069 check_cc <<EOF && enable_weak inline_asm
5070 void foo(void) { __asm__ volatile ("" ::); }
5071 EOF
5072
5073 _restrict=
5074 for restrict_keyword in restrict __restrict__ __restrict; do
5075     check_cc <<EOF && _restrict=$restrict_keyword && break
5076 void foo(char * $restrict_keyword p);
5077 EOF
5078 done
5079
5080 check_cc <<EOF && enable pragma_deprecated
5081 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5082 EOF
5083
5084 check_cc <<EOF && enable attribute_packed
5085 struct { int x; } __attribute__((packed)) x;
5086 EOF
5087
5088 check_cc <<EOF && enable attribute_may_alias
5089 union { int x; } __attribute__((may_alias)) x;
5090 EOF
5091
5092 check_cc <<EOF || die "endian test failed"
5093 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5094 EOF
5095 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5096
5097 if ! enabled ppc64 || enabled bigendian; then
5098     disable vsx
5099 fi
5100
5101 check_gas() {
5102     log "check_gas using '$as' as AS"
5103     # :vararg is used on aarch64, arm and ppc altivec
5104     check_as <<EOF || return 1
5105 .macro m n, y:vararg=0
5106 \n: .int \y
5107 .endm
5108 m x
5109 EOF
5110     # .altmacro is only used in arm asm
5111     ! enabled arm || check_as <<EOF || return 1
5112 .altmacro
5113 EOF
5114     enable gnu_as
5115     return 0
5116 }
5117
5118 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5119     nogas=:
5120     enabled_any arm aarch64 && nogas=die
5121     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5122     as_noop=-v
5123
5124     case $as_type in
5125         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5126         gcc)  gaspp_as_type=gas ;;
5127         *)    gaspp_as_type=$as_type ;;
5128     esac
5129
5130     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5131
5132     test "${as#*gas-preprocessor.pl}" != "$as" ||
5133     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5134         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5135
5136     if ! check_gas ; then
5137         as=${gas:=$as}
5138         check_gas || \
5139             $nogas "GNU assembler not found, install/update gas-preprocessor"
5140     fi
5141
5142     check_as <<EOF && enable as_func
5143 .func test
5144 .endfunc
5145 EOF
5146 fi
5147
5148 check_inline_asm inline_asm_labels '"1:\n"'
5149
5150 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5151
5152 if enabled aarch64; then
5153     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5154     # internal assembler in clang 3.3 does not support this instruction
5155     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5156     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5157
5158     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5159
5160 elif enabled alpha; then
5161
5162     check_cflags -mieee
5163
5164 elif enabled arm; then
5165
5166     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5167
5168     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5169 float func(float a, float b){ return a+b; }
5170 EOF
5171
5172     enabled thumb && check_cflags -mthumb || check_cflags -marm
5173
5174     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5175         enable vfp_args
5176     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5177         enable vfp_args
5178     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5179         case "${cross_prefix:-$cc}" in
5180             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5181             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5182 __asm__ (".eabi_attribute 28, 1");
5183 int main(void) { return 0; }
5184 EOF
5185         esac
5186         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5187     fi
5188
5189     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5190     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5191     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5192     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5193     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5194     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5195     enabled setend  && check_insn setend  'setend be'
5196
5197     [ $target_os = linux ] || [ $target_os = android ] ||
5198         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5199             $ARCH_EXT_LIST_ARM
5200
5201     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5202
5203     check_as <<EOF && enable as_dn_directive
5204 ra .dn d0.i16
5205 .unreq ra
5206 EOF
5207
5208     # llvm's integrated assembler supports .object_arch from llvm 3.5
5209     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5210 .object_arch armv4
5211 EOF
5212
5213     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5214
5215 elif enabled mips; then
5216
5217     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5218     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5219     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5220
5221     # Enable minimum ISA based on selected options
5222     if enabled mips64; then
5223         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5224         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5225         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5226     else
5227         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5228         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5229         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5230         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5231     fi
5232
5233     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5234     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5235     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5236     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5237     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5238
5239 elif enabled parisc; then
5240
5241     if enabled gcc; then
5242         case $($cc -dumpversion) in
5243             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5244         esac
5245     fi
5246
5247 elif enabled ppc; then
5248
5249     enable local_aligned_8 local_aligned_16 local_aligned_32
5250
5251     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5252     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5253     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5254     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5255
5256     # AltiVec flags: The FSF version of GCC differs from the Apple version
5257     if enabled altivec; then
5258         check_cflags -maltivec -mabi=altivec &&
5259         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5260         check_cflags -faltivec
5261
5262         # check if our compiler supports Motorola AltiVec C API
5263         check_cc <<EOF || disable altivec
5264 $inc_altivec_h
5265 int main(void) {
5266     vector signed int v1 = (vector signed int) { 0 };
5267     vector signed int v2 = (vector signed int) { 1 };
5268     v1 = vec_add(v1, v2);
5269     return 0;
5270 }
5271 EOF
5272
5273         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5274     fi
5275
5276     if enabled vsx; then
5277         check_cflags -mvsx &&
5278         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5279     fi
5280
5281     if enabled power8; then
5282         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5283     fi
5284
5285 elif enabled x86; then
5286
5287     check_builtin rdtsc    intrin.h   "__rdtsc()"
5288     check_builtin mm_empty mmintrin.h "_mm_empty()"
5289
5290     enable local_aligned_8 local_aligned_16 local_aligned_32
5291
5292     # check whether EBP is available on x86
5293     # As 'i' is stored on the stack, this program will crash
5294     # if the base pointer is used to access it because the
5295     # base pointer is cleared in the inline assembly code.
5296     check_exec_crash <<EOF && enable ebp_available
5297 volatile int i=0;
5298 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5299 return i;
5300 EOF
5301
5302     # check whether EBX is available on x86
5303     check_inline_asm ebx_available '""::"b"(0)' &&
5304         check_inline_asm ebx_available '"":::"%ebx"'
5305
5306     # check whether xmm clobbers are supported
5307     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5308
5309     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5310         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5311
5312     # check whether binutils is new enough to compile SSSE3/MMXEXT
5313     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5314     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5315
5316     if ! disabled_any asm mmx yasm; then
5317         if check_cmd $yasmexe --version; then
5318             enabled x86_64 && yasm_extra="-m amd64"
5319             yasm_debug="-g dwarf2"
5320         elif check_cmd nasm -v; then
5321             yasmexe=nasm
5322             yasm_debug="-g -F dwarf"
5323             if enabled x86_64; then
5324                 case "$objformat" in
5325                     elf)   objformat=elf64 ;;
5326                     win32) objformat=win64 ;;
5327                 esac
5328             fi
5329         fi
5330
5331         YASMFLAGS="-f $objformat $yasm_extra"
5332         enabled pic               && append YASMFLAGS "-DPIC"
5333         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5334         case "$objformat" in
5335             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5336         esac
5337
5338         check_yasm "movbe ecx, [5]" && enable yasm ||
5339             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5340         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5341         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5342         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5343         check_yasm "CPU amdnop" || disable cpunop
5344     fi
5345
5346     case "$cpu" in
5347         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5348             disable fast_clz
5349         ;;
5350     esac
5351
5352 fi
5353
5354 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5355
5356 check_ldflags -Wl,--as-needed
5357 check_ldflags -Wl,-z,noexecstack
5358
5359 if check_func dlopen; then
5360     ldl=
5361 elif check_func dlopen -ldl; then
5362     ldl=-ldl
5363 fi
5364
5365 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5366 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5367 frei0r_filter_extralibs='$ldl'
5368 frei0r_src_filter_extralibs='$ldl'
5369 ladspa_filter_extralibs='$ldl'
5370 nvenc_encoder_extralibs='$ldl'
5371 coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5372 coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5373
5374 if ! disabled network; then
5375     check_func getaddrinfo $network_extralibs
5376     check_func inet_aton $network_extralibs
5377
5378     check_type netdb.h "struct addrinfo"
5379     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5380     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5381     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5382     check_type poll.h "struct pollfd"
5383     check_type netinet/sctp.h "struct sctp_event_subscribe"
5384     check_struct "sys/socket.h" "struct msghdr" msg_flags
5385     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5386     check_type netinet/in.h "struct sockaddr_in6"
5387     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5388     check_type "sys/types.h sys/socket.h" socklen_t
5389
5390     # Prefer arpa/inet.h over winsock2
5391     if check_header arpa/inet.h ; then
5392         check_func closesocket
5393     elif check_header winsock2.h ; then
5394         check_func_headers winsock2.h closesocket -lws2 &&
5395             network_extralibs="-lws2" ||
5396         { check_func_headers winsock2.h closesocket -lws2_32 &&
5397             network_extralibs="-lws2_32"; } || disable winsock2_h network
5398         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5399
5400         check_type ws2tcpip.h socklen_t
5401         check_type ws2tcpip.h "struct addrinfo"
5402         check_type ws2tcpip.h "struct group_source_req"
5403         check_type ws2tcpip.h "struct ip_mreq_source"
5404         check_type ws2tcpip.h "struct ipv6_mreq"
5405         check_type winsock2.h "struct pollfd"
5406         check_struct winsock2.h "struct sockaddr" sa_len
5407         check_type ws2tcpip.h "struct sockaddr_in6"
5408         check_type ws2tcpip.h "struct sockaddr_storage"
5409     else
5410         disable network
5411     fi
5412 fi
5413
5414 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5415 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5416 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5417 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5418 check_builtin sarestart signal.h "SA_RESTART"
5419 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5420 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5421 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5422 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5423 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5424
5425 case "$custom_allocator" in
5426     jemalloc)
5427         # jemalloc by default does not use a prefix
5428         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5429     ;;
5430     tcmalloc)
5431         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5432         malloc_prefix=tc_
5433     ;;
5434 esac
5435
5436 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5437 check_func  ${malloc_prefix}memalign            && enable memalign
5438 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5439
5440 check_func  access
5441 check_func  arc4random
5442 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5443 check_func  fcntl
5444 check_func  fork
5445 check_func  gethrtime
5446 check_func  getopt
5447 check_func  getrusage
5448 check_func  gettimeofday
5449 check_func  isatty
5450 check_func  mach_absolute_time
5451 check_func  mkstemp
5452 check_func  mmap
5453 check_func  mprotect
5454 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5455 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5456 check_func  sched_getaffinity
5457 check_func  setrlimit
5458 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5459 check_func  strerror_r
5460 check_func  sysconf
5461 check_func  sysctl
5462 check_func  usleep
5463
5464 check_func_headers conio.h kbhit
5465 check_func_headers io.h setmode
5466 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5467 check_func_headers stdlib.h getenv
5468 check_func_headers sys/stat.h lstat
5469
5470 check_func_headers windows.h CoTaskMemFree -lole32
5471 check_func_headers windows.h GetProcessAffinityMask
5472 check_func_headers windows.h GetProcessTimes
5473 check_func_headers windows.h GetSystemTimeAsFileTime
5474 check_func_headers windows.h MapViewOfFile
5475 check_func_headers windows.h PeekNamedPipe
5476 check_func_headers windows.h SetConsoleTextAttribute
5477 check_func_headers windows.h SetConsoleCtrlHandler
5478 check_func_headers windows.h Sleep
5479 check_func_headers windows.h VirtualAlloc
5480 check_struct windows.h "CONDITION_VARIABLE" Ptr
5481 check_func_headers glob.h glob
5482 enabled xlib &&
5483     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5484
5485 check_header AudioToolbox/AudioToolbox.h
5486 check_header direct.h
5487 check_header dirent.h
5488 check_header dlfcn.h
5489 check_header d3d11.h
5490 check_header dxva.h
5491 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5492 check_header io.h
5493 check_header libcrystalhd/libcrystalhd_if.h
5494 check_header mach/mach_time.h
5495 check_header malloc.h
5496 check_header net/udplite.h
5497 check_header poll.h
5498 check_header sys/mman.h
5499 check_header sys/param.h
5500 check_header sys/resource.h
5501 check_header sys/select.h
5502 check_header sys/time.h
5503 check_header sys/un.h
5504 check_header termios.h
5505 check_header unistd.h
5506 check_header valgrind/valgrind.h
5507 check_header vdpau/vdpau.h
5508 check_header vdpau/vdpau_x11.h
5509 check_header VideoDecodeAcceleration/VDADecoder.h
5510 check_header VideoToolbox/VideoToolbox.h
5511 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5512 enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo
5513 check_header windows.h
5514 check_header X11/extensions/XvMClib.h
5515 check_header asm/types.h
5516
5517 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5518 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5519 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5520 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5521
5522 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5523
5524 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5525 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5526 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5527 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5528 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5529
5530 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5531 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5532 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5533 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5534 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5535 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5536
5537 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5538
5539 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
5540 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
5541 check_type "cuviddec.h" "CUVIDVC1PICPARAMS"
5542 check_type "cuviddec.h" "CUVIDVP9PICPARAMS"
5543
5544 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5545
5546 if ! disabled w32threads && ! enabled pthreads; then
5547     check_func_headers "windows.h process.h" _beginthreadex &&
5548         enable w32threads || disable w32threads
5549     if ! enabled w32threads && enabled winrt; then
5550         check_func_headers "windows.h" CreateThread &&
5551             enable w32threads || disable w32threads
5552     fi
5553 fi
5554
5555 # check for some common methods of building with pthread support
5556 # do this before the optional library checks as some of them require pthreads
5557 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5558     enable pthreads
5559     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5560         add_cflags -pthread
5561         add_extralibs -pthread
5562     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5563         add_cflags -pthreads
5564         add_extralibs -pthreads
5565     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5566         add_cflags -ldl -pthread
5567         add_extralibs -ldl -pthread
5568     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5569         add_extralibs -lpthreadGC2
5570     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5571         :
5572     elif ! check_func pthread_join && ! check_func pthread_create; then
5573         disable pthreads
5574     fi
5575     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5576 fi
5577
5578
5579 if enabled pthreads; then
5580   check_func pthread_cancel
5581 fi
5582
5583 enabled pthreads &&
5584     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
5585
5586 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5587 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5588 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5589
5590 check_lib math.h sin -lm && LIBM="-lm"
5591 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5592
5593 atan2f_args=2
5594 copysign_args=2
5595 hypot_args=2
5596 ldexpf_args=2
5597 powf_args=2
5598
5599 for func in $MATH_FUNCS; do
5600     eval check_mathfunc $func \${${func}_args:-1}
5601 done
5602
5603 for func in $COMPLEX_FUNCS; do
5604     eval check_complexfunc $func \${${func}_args:-1}
5605 done
5606
5607 # Enable CUVID by default if CUDA is enabled
5608 if enabled cuda && ! disabled cuvid; then
5609     enable cuvid
5610 fi
5611
5612 # these are off by default, so fail if requested and not available
5613 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5614 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5615                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5616 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5617                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5618                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5619 enabled cuda              && { check_lib cuda.h cuInit -lcuda ||
5620                                die "ERROR: CUDA not found"; }
5621 enabled cuvid             && { check_lib cuviddec.h cuvidCreateDecoder -lnvcuvid ||
5622                                die "ERROR: CUVID not found"; } &&
5623                              { enabled cuda ||
5624                                die "ERROR: CUVID requires CUDA"; }
5625 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5626 enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
5627 enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
5628 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5629 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5630 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5631 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5632 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&
5633                                check_lib2 "dlfcn.h" dlopen -ldl; }
5634 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5635 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5636 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5637 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5638 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5639 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5640                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5641                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5642 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5643 enabled libebur128        && require ebur128 ebur128.h ebur128_relative_threshold -lebur128
5644 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5645 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5646                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5647                                  warn "using libfdk without pkg-config"; } }
5648 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"
5649 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5650 enabled fontconfig        && enable libfontconfig
5651 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5652 enabled libfreetype       && require_libfreetype
5653 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5654 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5655 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5656                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5657                                done || die "ERROR: libgsm not found"; }
5658 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5659 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5660 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5661 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5662 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5663 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5664 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
5665 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5666 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5667 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5668                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
5669                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5670                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
5671 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5672 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5673                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5674                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5675                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5676                                die "ERROR: libopenjpeg not found"; }
5677 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5678 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5679 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5680 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5681 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5682 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5683 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5684                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5685 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5686 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5687 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5688 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5689 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5690 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5691 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5692                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5693                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5694 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5695 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5696 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5697 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5698
5699 enabled libvpx            && {
5700     enabled libvpx_vp8_decoder && {
5701         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5702             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5703                 die "ERROR: libvpx decoder version must be >=0.9.1";
5704     }
5705     enabled libvpx_vp8_encoder && {
5706         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5707             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5708                 die "ERROR: libvpx encoder version must be >=0.9.7";
5709     }
5710     enabled libvpx_vp9_decoder && {
5711         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5712             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5713                 disable libvpx_vp9_decoder;
5714     }
5715     enabled libvpx_vp9_encoder && {
5716         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5717             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5718                 disable libvpx_vp9_encoder;
5719     }
5720     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5721         die "libvpx enabled but no supported decoders found"
5722     fi
5723 }
5724
5725 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5726 enabled libwebp           && {
5727     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5728     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5729 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5730                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5731                                  warn "using libx264 without pkg-config"; } } &&
5732                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5733                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5734                              { check_cpp_condition x264.h "X264_MPEG2" &&
5735                                enable libx262; }
5736 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5737                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||
5738                                die "ERROR: libx265 version must be >= 68."; }
5739 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5740 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5741 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5742 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5743 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
5744                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
5745                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
5746 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
5747 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5748                                 { ! enabled cross_compile && {
5749                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5750                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5751                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5752                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5753                                die "ERROR: mmal not found"; }
5754 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
5755
5756 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5757 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5758                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
5759                                die "ERROR: NVENC API version 5 or older is not supported"; } &&
5760                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5761 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5762                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5763                                die "ERROR: openal not found"; } &&
5764                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5765                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5766 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5767                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5768                                die "ERROR: opencl not found"; } &&
5769                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5770                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5771                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5772 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5773                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5774                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5775                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5776                                die "ERROR: opengl not found."
5777                              }
5778 enabled omx_rpi && enable omx
5779 enabled omx               && { check_header OMX_Core.h ||
5780                                 { ! enabled cross_compile && enabled omx_rpi && {
5781                                     add_cflags -isystem/opt/vc/include/IL ; }
5782                                 check_header OMX_Core.h ; } ||
5783                                die "ERROR: OpenMAX IL headers not found"; }
5784 enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||
5785                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5786                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5787                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5788                                die "ERROR: openssl not found"; }
5789 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5790
5791 # libdc1394 check
5792 if enabled libdc1394; then
5793     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5794         enable libdc1394_2; } ||
5795     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5796         enable libdc1394_1; } ||
5797     die "ERROR: No version of libdc1394 found "
5798 fi
5799
5800 if enabled gcrypt; then
5801     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5802     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5803         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5804         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5805         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5806             die "ERROR: gcrypt not found"
5807         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5808     else
5809         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5810     fi
5811 fi
5812
5813 if ! disabled sdl; then
5814     SDL_CONFIG="${cross_prefix}sdl-config"
5815     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5816         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5817         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5818         enable sdl
5819     else
5820         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5821             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5822             sdl_libs=$("${SDL_CONFIG}" --libs)
5823             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5824             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5825             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5826             enable sdl
5827         elif enabled sdl ; then
5828             die "ERROR: SDL not found"
5829         else
5830             disable sdl
5831         fi
5832     fi
5833     if test $target_os = "mingw32"; then
5834         sdl_libs="$sdl_libs -mconsole"
5835     fi
5836 fi
5837 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5838
5839 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5840     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5841     enable securetransport; }
5842
5843 disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
5844                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }
5845
5846 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5847 enabled makeinfo \
5848     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5849     && enable makeinfo_html || disable makeinfo_html
5850 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5851 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5852 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5853 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5854
5855 check_header linux/fb.h
5856 check_header linux/videodev.h
5857 check_header linux/videodev2.h
5858 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5859
5860 check_header sys/videoio.h
5861 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5862
5863 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5864 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5865 # w32api 3.12 had it defined wrong
5866 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5867
5868 check_type "dshow.h" IBaseFilter
5869
5870 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5871 { check_header dev/bktr/ioctl_meteor.h &&
5872   check_header dev/bktr/ioctl_bt848.h; } ||
5873 { check_header machine/ioctl_meteor.h &&
5874   check_header machine/ioctl_bt848.h; } ||
5875 { check_header dev/video/meteor/ioctl_meteor.h &&
5876   check_header dev/video/bktr/ioctl_bt848.h; } ||
5877 check_header dev/ic/bt8xx.h
5878
5879 check_header sndio.h
5880 if check_struct sys/soundcard.h audio_buf_info bytes; then
5881     enable_safe sys/soundcard.h
5882 else
5883     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5884     #include <sys/soundcard.h>
5885     audio_buf_info abc;
5886 EOF
5887 fi
5888 check_header soundcard.h
5889
5890 enabled_any alsa_indev alsa_outdev &&
5891     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5892
5893 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
5894     check_func jack_port_get_latency_range -ljack
5895
5896 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5897
5898 if enabled libcdio; then
5899     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5900     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5901     die "ERROR: No usable libcdio/cdparanoia found"
5902 fi
5903
5904 enabled xlib &&
5905     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5906
5907 if ! disabled libxcb; then
5908     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5909         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5910     } && disable x11grab && enable libxcb
5911
5912 if enabled libxcb; then
5913     disabled libxcb_shm || {
5914         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5915             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5916         } && check_header sys/shm.h && enable libxcb_shm; }
5917
5918     disabled libxcb_xfixes || {
5919         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5920             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5921         } && enable libxcb_xfixes; }
5922
5923     disabled libxcb_shape || {
5924         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5925             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5926         } && enable libxcb_shape; }
5927
5928     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5929     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5930 fi
5931 fi
5932
5933 if enabled x11grab; then
5934     enabled xlib || die "ERROR: Xlib not found"
5935     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5936     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5937 fi
5938
5939 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5940
5941 enabled dxva2api_h &&
5942     check_cc <<EOF && enable dxva2api_cobj
5943 #define _WIN32_WINNT 0x0600
5944 #define COBJMACROS
5945 #include <windows.h>
5946 #include <d3d9.h>
5947 #include <dxva2api.h>
5948 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5949 EOF
5950
5951 enabled vaapi &&
5952     check_lib va/va.h vaInitialize -lva ||
5953     disable vaapi
5954
5955 enabled vaapi &&
5956     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
5957     disable vaapi
5958
5959 if enabled vaapi ; then
5960     enabled xlib &&
5961     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5962     enable vaapi_x11
5963
5964     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
5965     enable vaapi_drm
5966 fi
5967
5968 enabled vdpau &&
5969     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5970     disable vdpau
5971
5972 enabled vdpau && enabled xlib &&
5973     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5974     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5975     enable vdpau_x11
5976
5977 # Funny iconv installations are not unusual, so check it after all flags have been set
5978 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5979
5980 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5981
5982 # add some useful compiler flags if supported
5983 check_cflags -Wdeclaration-after-statement
5984 check_cflags -Wall
5985 check_cflags -Wdisabled-optimization
5986 check_cflags -Wpointer-arith
5987 check_cflags -Wredundant-decls
5988 check_cflags -Wwrite-strings
5989 check_cflags -Wtype-limits
5990 check_cflags -Wundef
5991 check_cflags -Wmissing-prototypes
5992 check_cflags -Wno-pointer-to-int-cast
5993 check_cflags -Wstrict-prototypes
5994 check_cflags -Wempty-body
5995 enabled extra_warnings && check_cflags -Winline
5996 enabled extra_warnings && check_cflags -Wcast-qual
5997
5998 check_disable_warning(){
5999     warning_flag=-W${1#-Wno-}
6000     test_cflags $warning_flag && add_cflags $1
6001 }
6002
6003 check_disable_warning -Wno-parentheses
6004 check_disable_warning -Wno-switch
6005 check_disable_warning -Wno-format-zero-length
6006 check_disable_warning -Wno-pointer-sign
6007 check_disable_warning -Wno-unused-const-variable
6008
6009 # add some linker flags
6010 check_ldflags -Wl,--warn-common
6011 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6012 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
6013 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
6014 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6015
6016 # add some strip flags
6017 # -wN '..@*' is more selective than -x, but not available everywhere.
6018 check_stripflags -wN \'..@*\' || check_stripflags -x
6019
6020 enabled neon_clobber_test &&
6021     check_ldflags -Wl,--wrap,avcodec_open2              \
6022                   -Wl,--wrap,avcodec_decode_audio4      \
6023                   -Wl,--wrap,avcodec_decode_video2      \
6024                   -Wl,--wrap,avcodec_decode_subtitle2   \
6025                   -Wl,--wrap,avcodec_encode_audio2      \
6026                   -Wl,--wrap,avcodec_encode_video2      \
6027                   -Wl,--wrap,avcodec_encode_subtitle    \
6028                   -Wl,--wrap,swr_convert                \
6029                   -Wl,--wrap,avresample_convert ||
6030     disable neon_clobber_test
6031
6032 enabled xmm_clobber_test &&
6033     check_ldflags -Wl,--wrap,avcodec_open2              \
6034                   -Wl,--wrap,avcodec_decode_audio4      \
6035                   -Wl,--wrap,avcodec_decode_video2      \
6036                   -Wl,--wrap,avcodec_decode_subtitle2   \
6037                   -Wl,--wrap,avcodec_encode_audio2      \
6038                   -Wl,--wrap,avcodec_encode_video2      \
6039                   -Wl,--wrap,avcodec_encode_subtitle    \
6040                   -Wl,--wrap,swr_convert                \
6041                   -Wl,--wrap,avresample_convert         \
6042                   -Wl,--wrap,sws_scale ||
6043     disable xmm_clobber_test
6044
6045 echo "X { local: *; };" > $TMPV
6046 if test_ldflags -Wl,--version-script,$TMPV; then
6047     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
6048 elif test_ldflags -Wl,-M,$TMPV; then
6049     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
6050 fi
6051
6052 check_cc <<EOF && enable symver_asm_label
6053 void ff_foo(void) __asm__ ("av_foo@VERSION");
6054 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6055 EOF
6056     check_cc <<EOF && enable symver_gnu_asm
6057 __asm__(".symver ff_foo,av_foo@VERSION");
6058 void ff_foo(void) {}
6059 EOF
6060
6061 if [ -z "$optflags" ]; then
6062     if enabled small; then
6063         optflags=$cflags_size
6064     elif enabled optimizations; then
6065         optflags=$cflags_speed
6066     else
6067         optflags=$cflags_noopt
6068     fi
6069 fi
6070
6071 check_optflags(){
6072     check_cflags "$@"
6073     enabled lto && check_ldflags "$@"
6074 }
6075
6076
6077 if enabled lto; then
6078     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6079     check_cflags  -flto
6080     check_ldflags -flto $cpuflags
6081     disable inline_asm_direct_symbol_refs
6082 fi
6083
6084 check_optflags $optflags
6085 check_optflags -fno-math-errno
6086 check_optflags -fno-signed-zeros
6087
6088 enabled ftrapv && check_cflags -ftrapv
6089
6090 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6091 int x;
6092 EOF
6093
6094
6095 if enabled icc; then
6096     # Just warnings, no remarks
6097     check_cflags -w1
6098     # -wd: Disable following warnings
6099     # 144, 167, 556: -Wno-pointer-sign
6100     # 188: enumerated type mixed with another type
6101     # 1292: attribute "foo" ignored
6102     # 1419: external declaration in primary source file
6103     # 10006: ignoring unknown option -fno-signed-zeros
6104     # 10148: ignoring unknown option -Wno-parentheses
6105     # 10156: ignoring option '-W'; no argument required
6106     # 13200: No EMMS instruction before call to function
6107     # 13203: No EMMS instruction before return from function
6108     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6109     # 11030: Warning unknown option --as-needed
6110     # 10156: ignoring option '-export'; no argument required
6111     check_ldflags -wd10156,11030
6112     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6113     enable ebp_available
6114     # The test above does not test linking
6115     enabled lto && disable symver_asm_label
6116     if enabled x86_32; then
6117         icc_version=$($cc -dumpversion)
6118         test ${icc_version%%.*} -ge 11 &&
6119             check_cflags -falign-stack=maintain-16-byte ||
6120             disable aligned_stack
6121     fi
6122 elif enabled ccc; then
6123     # disable some annoying warnings
6124     add_cflags -msg_disable bitnotint
6125     add_cflags -msg_disable mixfuncvoid
6126     add_cflags -msg_disable nonstandcast
6127     add_cflags -msg_disable unsupieee
6128 elif enabled gcc; then
6129     case $gcc_basever in
6130         4.9*) enabled x86 || check_optflags -fno-tree-vectorize ;;
6131         4.*)                 check_optflags -fno-tree-vectorize ;;
6132         *)    enabled x86 || check_optflags -fno-tree-vectorize ;;
6133     esac
6134     check_cflags -Werror=format-security
6135     check_cflags -Werror=implicit-function-declaration
6136     check_cflags -Werror=missing-prototypes
6137     check_cflags -Werror=return-type
6138     check_cflags -Werror=vla
6139     check_cflags -Wformat
6140     check_cflags -fdiagnostics-color=auto
6141     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6142 elif enabled llvm_gcc; then
6143     check_cflags -mllvm -stack-alignment=16
6144 elif enabled clang; then
6145     check_cflags -mllvm -stack-alignment=16
6146     check_cflags -Qunused-arguments
6147     check_cflags -Werror=implicit-function-declaration
6148     check_cflags -Werror=missing-prototypes
6149     check_cflags -Werror=return-type
6150 elif enabled cparser; then
6151     add_cflags -Wno-missing-variable-declarations
6152     add_cflags -Wno-empty-statement
6153 elif enabled armcc; then
6154     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6155     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6156     # 2523: use of inline assembly is deprecated
6157     add_cflags -W${armcc_opt},--diag_suppress=2523
6158     add_cflags -W${armcc_opt},--diag_suppress=1207
6159     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6160     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6161     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6162     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6163 elif enabled tms470; then
6164     add_cflags -pds=824 -pds=837
6165     disable inline_asm
6166 elif enabled pathscale; then
6167     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6168 elif enabled_any msvc icl; then
6169     enabled x86_32 && disable aligned_stack
6170     enabled_all x86_32 debug && add_cflags -Oy-
6171     enabled debug && add_ldflags -debug
6172     enable pragma_deprecated
6173     if enabled icl; then
6174         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6175         # (correctly) on icl 13.x.
6176         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6177             add_cflags -Qansi-alias
6178         # Some inline asm is not compilable in debug
6179         if enabled debug; then
6180             disable ebp_available
6181             disable ebx_available
6182         fi
6183     fi
6184     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6185     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6186     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6187     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6188     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6189     # MSVC 2013 and newer can handle it fine.
6190     # If this declspec fails, force including stdlib.h before the restrict redefinition
6191     # happens in config.h.
6192     if [ $_restrict != restrict ]; then
6193         check_cc <<EOF || add_cflags -FIstdlib.h
6194 __declspec($_restrict) void* foo(int);
6195 EOF
6196     fi
6197     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
6198 fi
6199
6200 for pfx in "" host_; do
6201     varname=${pfx%_}cc_type
6202     eval "type=\$$varname"
6203     if [ $type = "msvc" ]; then
6204         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6205 static inline int foo(int a) { return a; }
6206 EOF
6207     fi
6208 done
6209
6210 case $as_type in
6211     clang)
6212         add_asflags -Qunused-arguments
6213     ;;
6214 esac
6215
6216 case $ld_type in
6217     clang)
6218         check_ldflags -Qunused-arguments
6219     ;;
6220 esac
6221
6222 case $target_os in
6223     osf1)
6224         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6225     ;;
6226     plan9)
6227         add_cppflags -Dmain=plan9_main
6228     ;;
6229 esac
6230
6231 enable frame_thread_encoder
6232
6233 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6234
6235 check_deps $CONFIG_LIST       \
6236            $CONFIG_EXTRA      \
6237            $HAVE_LIST         \
6238            $ALL_COMPONENTS    \
6239
6240 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"
6241
6242
6243 if test $target_os = "haiku"; then
6244     disable memalign
6245     disable posix_memalign
6246 fi
6247
6248 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6249     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6250     enable dxva2_lib
6251
6252 ! enabled_any memalign posix_memalign aligned_malloc &&
6253     enabled simd_align_16 && enable memalign_hack
6254
6255 # add_dep lib dep
6256 # -> enable ${lib}_deps_${dep}
6257 # -> add $dep to ${lib}_deps only once
6258 add_dep() {
6259     lib=$1
6260     dep=$2
6261     enabled "${lib}_deps_${dep}" && return 0
6262     enable  "${lib}_deps_${dep}"
6263     prepend "${lib}_deps" $dep
6264 }
6265
6266 # merge deps lib components
6267 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6268 merge_deps() {
6269     lib=$1
6270     shift
6271     for comp in $*; do
6272         enabled $comp || continue
6273         eval "dep=\"\$${comp}_deps\""
6274         for d in $dep; do
6275             add_dep $lib $d
6276         done
6277     done
6278 }
6279
6280 merge_deps libavfilter $FILTER_LIST
6281
6282 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6283
6284 for thread in $THREADS_LIST; do
6285     if enabled $thread; then
6286         test -n "$thread_type" &&
6287             die "ERROR: Only one thread type must be selected." ||
6288             thread_type="$thread"
6289     fi
6290 done
6291
6292 enabled zlib && add_cppflags -DZLIB_CONST
6293
6294 # conditional library dependencies, in linking order
6295 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6296 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6297 enabled aresample_filter    && prepend avfilter_deps "swresample"
6298 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6299 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6300 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6301 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6302 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6303 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6304 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6305 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6306 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6307 enabled pan_filter          && prepend avfilter_deps "swresample"
6308 enabled pp_filter           && prepend avfilter_deps "postproc"
6309 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6310 enabled resample_filter && prepend avfilter_deps "avresample"
6311 enabled sab_filter          && prepend avfilter_deps "swscale"
6312 enabled scale_filter    && prepend avfilter_deps "swscale"
6313 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6314 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6315 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6316 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6317 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6318 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6319 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6320 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6321 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6322
6323 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6324
6325 enabled opus_decoder    && prepend avcodec_deps "swresample"
6326
6327 expand_deps(){
6328     lib_deps=${1}_deps
6329     eval "deps=\$$lib_deps"
6330     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6331     unique $lib_deps
6332 }
6333
6334 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6335 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6336
6337 map 'expand_deps $v' $LIBRARY_LIST
6338
6339 echo "install prefix            $prefix"
6340 echo "source path               $source_path"
6341 echo "C compiler                $cc"
6342 echo "C library                 $libc_type"
6343 if test "$host_cc" != "$cc"; then
6344     echo "host C compiler           $host_cc"
6345     echo "host C library            $host_libc_type"
6346 fi
6347 echo "ARCH                      $arch ($cpu)"
6348 if test "$build_suffix" != ""; then
6349     echo "build suffix              $build_suffix"
6350 fi
6351 if test "$progs_suffix" != ""; then
6352     echo "progs suffix              $progs_suffix"
6353 fi
6354 if test "$extra_version" != ""; then
6355     echo "version string suffix     $extra_version"
6356 fi
6357 echo "big-endian                ${bigendian-no}"
6358 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6359 if enabled x86; then
6360     echo "${yasmexe}                      ${yasm-no}"
6361     echo "MMX enabled               ${mmx-no}"
6362     echo "MMXEXT enabled            ${mmxext-no}"
6363     echo "3DNow! enabled            ${amd3dnow-no}"
6364     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6365     echo "SSE enabled               ${sse-no}"
6366     echo "SSSE3 enabled             ${ssse3-no}"
6367     echo "AESNI enabled             ${aesni-no}"
6368     echo "AVX enabled               ${avx-no}"
6369     echo "XOP enabled               ${xop-no}"
6370     echo "FMA3 enabled              ${fma3-no}"
6371     echo "FMA4 enabled              ${fma4-no}"
6372     echo "i686 features enabled     ${i686-no}"
6373     echo "CMOV is fast              ${fast_cmov-no}"
6374     echo "EBX available             ${ebx_available-no}"
6375     echo "EBP available             ${ebp_available-no}"
6376 fi
6377 if enabled aarch64; then
6378     echo "NEON enabled              ${neon-no}"
6379     echo "VFP enabled               ${vfp-no}"
6380 fi
6381 if enabled arm; then
6382     echo "ARMv5TE enabled           ${armv5te-no}"
6383     echo "ARMv6 enabled             ${armv6-no}"
6384     echo "ARMv6T2 enabled           ${armv6t2-no}"
6385     echo "VFP enabled               ${vfp-no}"
6386     echo "NEON enabled              ${neon-no}"
6387     echo "THUMB enabled             ${thumb-no}"
6388 fi
6389 if enabled mips; then
6390     echo "MIPS FPU enabled          ${mipsfpu-no}"
6391     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6392     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6393     echo "MIPS MSA enabled          ${msa-no}"
6394     echo "LOONGSON MMI enabled      ${mmi-no}"
6395 fi
6396 if enabled ppc; then
6397     echo "AltiVec enabled           ${altivec-no}"
6398     echo "VSX enabled               ${vsx-no}"
6399     echo "POWER8 enabled            ${power8-no}"
6400     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6401     echo "dcbzl available           ${dcbzl-no}"
6402 fi
6403 echo "debug symbols             ${debug-no}"
6404 echo "strip symbols             ${stripping-no}"
6405 echo "optimize for size         ${small-no}"
6406 echo "optimizations             ${optimizations-no}"
6407 echo "static                    ${static-no}"
6408 echo "shared                    ${shared-no}"
6409 echo "postprocessing support    ${postproc-no}"
6410 echo "new filter support        ${avfilter-no}"
6411 echo "network support           ${network-no}"
6412 echo "threading support         ${thread_type-no}"
6413 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6414 echo "SDL support               ${sdl-no}"
6415 echo "opencl enabled            ${opencl-no}"
6416 echo "JNI support               ${jni-no}"
6417 echo "texi2html enabled         ${texi2html-no}"
6418 echo "perl enabled              ${perl-no}"
6419 echo "pod2man enabled           ${pod2man-no}"
6420 echo "makeinfo enabled          ${makeinfo-no}"
6421 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6422 test -n "$random_seed" &&
6423     echo "random seed               ${random_seed}"
6424 echo
6425
6426 echo "Enabled programs:"
6427 print_enabled '' $PROGRAM_LIST | print_in_columns
6428 echo
6429
6430 echo "External libraries:"
6431 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6432 echo
6433
6434 echo "External libraries providing hardware acceleration:"
6435 print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns
6436 echo
6437
6438 echo "Libraries:"
6439 print_enabled '' $LIBRARY_LIST | print_in_columns
6440 echo
6441
6442 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6443     echo "Enabled ${type}s:"
6444     eval list=\$$(toupper $type)_LIST
6445     print_enabled '_*' $list | print_in_columns
6446     echo
6447 done
6448
6449 license="LGPL version 2.1 or later"
6450 if enabled nonfree; then
6451     license="nonfree and unredistributable"
6452 elif enabled gplv3; then
6453     license="GPL version 3 or later"
6454 elif enabled lgplv3; then
6455     license="LGPL version 3 or later"
6456 elif enabled gpl; then
6457     license="GPL version 2 or later"
6458 fi
6459
6460 echo "License: $license"
6461
6462 echo "Creating config.mak, config.h, and doc/config.texi..."
6463
6464 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6465
6466 enabled stripping || strip="echo skipping strip"
6467
6468 config_files="$TMPH config.mak doc/config.texi"
6469
6470 cat > config.mak <<EOF
6471 # Automatically generated by configure - do not modify!
6472 ifndef FFMPEG_CONFIG_MAK
6473 FFMPEG_CONFIG_MAK=1
6474 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6475 prefix=$prefix
6476 LIBDIR=\$(DESTDIR)$libdir
6477 SHLIBDIR=\$(DESTDIR)$shlibdir
6478 INCDIR=\$(DESTDIR)$incdir
6479 BINDIR=\$(DESTDIR)$bindir
6480 DATADIR=\$(DESTDIR)$datadir
6481 DOCDIR=\$(DESTDIR)$docdir
6482 MANDIR=\$(DESTDIR)$mandir
6483 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6484 INSTALL_NAME_DIR=$install_name_dir
6485 SRC_PATH=$source_path
6486 SRC_LINK=$source_link
6487 ifndef MAIN_MAKEFILE
6488 SRC_PATH:=\$(SRC_PATH:.%=..%)
6489 endif
6490 CC_IDENT=$cc_ident
6491 ARCH=$arch
6492 INTRINSICS=$intrinsics
6493 CC=$cc
6494 CXX=$cxx
6495 AS=$as
6496 OBJCC=$objcc
6497 LD=$ld
6498 DEPCC=$dep_cc
6499 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6500 DEPAS=$as
6501 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6502 YASM=$yasmexe
6503 DEPYASM=$yasmexe
6504 AR=$ar
6505 ARFLAGS=$arflags
6506 AR_O=$ar_o
6507 RANLIB=$ranlib
6508 STRIP=$strip
6509 CP=cp -p
6510 LN_S=$ln_s
6511 CPPFLAGS=$CPPFLAGS
6512 CFLAGS=$CFLAGS
6513 CXXFLAGS=$CXXFLAGS
6514 OBJCFLAGS=$OBJCFLAGS
6515 ASFLAGS=$ASFLAGS
6516 AS_C=$AS_C
6517 AS_O=$AS_O
6518 OBJCC_C=$OBJCC_C
6519 OBJCC_E=$OBJCC_E
6520 OBJCC_O=$OBJCC_O
6521 CC_C=$CC_C
6522 CC_E=$CC_E
6523 CC_O=$CC_O
6524 CXX_C=$CXX_C
6525 CXX_O=$CXX_O
6526 LD_O=$LD_O
6527 LD_LIB=$LD_LIB
6528 LD_PATH=$LD_PATH
6529 DLLTOOL=$dlltool
6530 WINDRES=$windres
6531 DEPWINDRES=$dep_cc
6532 DOXYGEN=$doxygen
6533 LDFLAGS=$LDFLAGS
6534 LDEXEFLAGS=$LDEXEFLAGS
6535 LDLIBFLAGS=$LDLIBFLAGS
6536 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6537 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6538 YASMFLAGS=$YASMFLAGS
6539 BUILDSUF=$build_suffix
6540 PROGSSUF=$progs_suffix
6541 FULLNAME=$FULLNAME
6542 LIBPREF=$LIBPREF
6543 LIBSUF=$LIBSUF
6544 LIBNAME=$LIBNAME
6545 SLIBPREF=$SLIBPREF
6546 SLIBSUF=$SLIBSUF
6547 EXESUF=$EXESUF
6548 EXTRA_VERSION=$extra_version
6549 CCDEP=$CCDEP
6550 CXXDEP=$CXXDEP
6551 CCDEP_FLAGS=$CCDEP_FLAGS
6552 ASDEP=$ASDEP
6553 ASDEP_FLAGS=$ASDEP_FLAGS
6554 CC_DEPFLAGS=$CC_DEPFLAGS
6555 AS_DEPFLAGS=$AS_DEPFLAGS
6556 HOSTCC=$host_cc
6557 HOSTLD=$host_ld
6558 HOSTCFLAGS=$host_cflags
6559 HOSTCPPFLAGS=$host_cppflags
6560 HOSTEXESUF=$HOSTEXESUF
6561 HOSTLDFLAGS=$host_ldflags
6562 HOSTLIBS=$host_libs
6563 DEPHOSTCC=$host_cc
6564 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6565 HOSTCCDEP=$HOSTCCDEP
6566 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6567 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6568 HOSTCC_C=$HOSTCC_C
6569 HOSTCC_O=$HOSTCC_O
6570 HOSTLD_O=$HOSTLD_O
6571 TARGET_EXEC=$target_exec $target_exec_args
6572 TARGET_PATH=$target_path
6573 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6574 CFLAGS-ffplay=$sdl_cflags
6575 ZLIB=$($ldflags_filter -lz)
6576 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6577 EXTRALIBS=$extralibs
6578 COMPAT_OBJS=$compat_objs
6579 EXEOBJS=$exeobjs
6580 INSTALL=$install
6581 LIBTARGET=${LIBTARGET}
6582 SLIBNAME=${SLIBNAME}
6583 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6584 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6585 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6586 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6587 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6588 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6589 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6590 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6591 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6592 NOREDZONE_FLAGS=$noredzone_flags
6593 EOF
6594
6595 get_version(){
6596     lcname=lib${1}
6597     name=$(toupper $lcname)
6598     file=$source_path/$lcname/version.h
6599     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6600     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6601     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6602     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6603     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6604     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6605 }
6606
6607 map 'get_version $v' $LIBRARY_LIST
6608
6609 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6610
6611 print_program_libs(){
6612     eval "program_libs=\$${1}_libs"
6613     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6614 }
6615
6616 map 'print_program_libs $v' $PROGRAM_LIST
6617
6618 cat > $TMPH <<EOF
6619 /* Automatically generated by configure - do not modify! */
6620 #ifndef FFMPEG_CONFIG_H
6621 #define FFMPEG_CONFIG_H
6622 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6623 #define FFMPEG_LICENSE "$(c_escape $license)"
6624 #define CONFIG_THIS_YEAR 2016
6625 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6626 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6627 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6628 #define av_restrict $_restrict
6629 #define EXTERN_PREFIX "${extern_prefix}"
6630 #define EXTERN_ASM ${extern_prefix}
6631 #define BUILDSUF "$build_suffix"
6632 #define SLIBSUF "$SLIBSUF"
6633 #define HAVE_MMX2 HAVE_MMXEXT
6634 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6635 EOF
6636
6637 test -n "$assert_level" &&
6638     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6639
6640 test -n "$malloc_prefix" &&
6641     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6642
6643 if enabled yasm; then
6644     append config_files $TMPASM
6645     printf '' >$TMPASM
6646 fi
6647
6648 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6649
6650
6651 mkdir -p doc
6652 mkdir -p tests
6653 mkdir -p tests/api
6654 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6655
6656 print_config ARCH_   "$config_files" $ARCH_LIST
6657 print_config HAVE_   "$config_files" $HAVE_LIST
6658 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6659                                      $CONFIG_EXTRA      \
6660                                      $ALL_COMPONENTS    \
6661
6662 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6663 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6664
6665 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6666 cp_if_changed $TMPH config.h
6667 touch .config
6668
6669 enabled yasm && cp_if_changed $TMPASM config.asm
6670
6671 cat > $TMPH <<EOF
6672 /* Generated by ffconf */
6673 #ifndef AVUTIL_AVCONFIG_H
6674 #define AVUTIL_AVCONFIG_H
6675 EOF
6676
6677 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6678
6679 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6680
6681 cp_if_changed $TMPH libavutil/avconfig.h
6682
6683 if test -n "$WARNINGS"; then
6684     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6685     enabled fatal_warnings && exit 1
6686 fi
6687
6688 # generate the lists of enabled components
6689 print_enabled_components(){
6690     file=$1
6691     struct_name=$2
6692     name=$3
6693     shift 3
6694     echo "static const $struct_name *$name[] = {" > $TMPH
6695     for c in $*; do
6696         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
6697     done
6698     echo "    NULL };" >> $TMPH
6699     cp_if_changed $TMPH $file
6700 }
6701
6702 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
6703 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
6704
6705 # build pkg-config files
6706
6707 lib_version(){
6708     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6709 }
6710
6711 pkgconfig_generate(){
6712     name=$1
6713     shortname=${name#lib}${build_suffix}
6714     comment=$2
6715     version=$3
6716     libs=$4
6717     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6718     requires=${requires%, }
6719     enabled ${name#lib} || return 0
6720     mkdir -p $name
6721     cat <<EOF > $name/$name${build_suffix}.pc
6722 prefix=$prefix
6723 exec_prefix=\${prefix}
6724 libdir=$libdir
6725 includedir=$incdir
6726
6727 Name: $name
6728 Description: $comment
6729 Version: $version
6730 Requires: $(enabled shared || echo $requires)
6731 Requires.private: $(enabled shared && echo $requires)
6732 Conflicts:
6733 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6734 Libs.private: $(enabled shared && echo $libs)
6735 Cflags: -I\${includedir}
6736 EOF
6737
6738 mkdir -p doc/examples/pc-uninstalled
6739 includedir=${source_path}
6740 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6741     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6742 prefix=
6743 exec_prefix=
6744 libdir=\${pcfiledir}/../../../$name
6745 includedir=${includedir}
6746
6747 Name: $name
6748 Description: $comment
6749 Version: $version
6750 Requires: $requires
6751 Conflicts:
6752 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6753 Cflags: -I\${includedir}
6754 EOF
6755 }
6756
6757 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6758 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6759 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6760 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6761 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6762 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6763 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6764 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6765 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"