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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  91   --enable-rpath           use rpath to allow installing libraries in paths
  92                            not part of the dynamic linker search path
  93                            use rpath when linking programs [USE WITH CARE]
  94   --install-name-dir=DIR   Darwin directory name for installed targets
  95
  96 Licensing options:
  97   --enable-gpl             allow use of GPL code, the resulting libs
  98                            and binaries will be under GPL [no]
  99   --enable-version3        upgrade (L)GPL to version 3 [no]
 100   --enable-nonfree         allow use of nonfree code, the resulting libs
 101                            and binaries will be unredistributable [no]
 102
 103 Configuration options:
 104   --disable-static         do not build static libraries [no]
 105   --enable-shared          build shared libraries [no]
 106   --enable-small           optimize for size instead of speed
 107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 108   --enable-gray            enable full grayscale support (slower color)
 109   --disable-swscale-alpha  disable alpha channel support in swscale
 110   --disable-all            disable building components, libraries and programs
 111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 112   --enable-raise-major     increase major version numbers in sonames [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119   --disable-ffserver       disable ffserver build
 120
 121 Documentation options:
 122   --disable-doc            do not build documentation
 123   --disable-htmlpages      do not build HTML documentation pages
 124   --disable-manpages       do not build man documentation pages
 125   --disable-podpages       do not build POD documentation pages
 126   --disable-txtpages       do not build text documentation pages
 127
 128 Component options:
 129   --disable-avdevice       disable libavdevice build
 130   --disable-avcodec        disable libavcodec build
 131   --disable-avformat       disable libavformat build
 132   --disable-swresample     disable libswresample build
 133   --disable-swscale        disable libswscale build
 134   --disable-postproc       disable libpostproc build
 135   --disable-avfilter       disable libavfilter build
 136   --enable-avresample      enable libavresample build [no]
 137   --disable-pthreads       disable pthreads [autodetect]
 138   --disable-w32threads     disable Win32 threads [autodetect]
 139   --disable-os2threads     disable OS/2 threads [autodetect]
 140   --disable-network        disable network support [no]
 141   --disable-dct            disable DCT code
 142   --disable-dwt            disable DWT code
 143   --disable-error-resilience disable error resilience code
 144   --disable-lsp            disable LSP code
 145   --disable-lzo            disable LZO decoder code
 146   --disable-mdct           disable MDCT code
 147   --disable-rdft           disable RDFT code
 148   --disable-fft            disable FFT code
 149   --disable-faan           disable floating point AAN (I)DCT code
 150   --disable-pixelutils     disable pixel utils in libavutil
 151
 152 Hardware accelerators:
 153   --disable-d3d11va        disable D3D11VA code [autodetect]
 154   --disable-dxva2          disable DXVA2 code [autodetect]
 155   --disable-vaapi          disable VAAPI code [autodetect]
 156   --disable-vda            disable VDA code [autodetect]
 157   --disable-vdpau          disable VDPAU code [autodetect]
 158
 159 Hardware-accelerated decoding/encoding:
 160   --enable-cuda            enable dynamically linked CUDA [no]
 161   --enable-cuvid           enable CUVID support [autodetect]
 162   --enable-libmfx          enable HW acceleration through libmfx
 163   --enable-mmal            enable decoding via MMAL [no]
 164   --enable-nvenc           enable NVIDIA NVENC support [no]
 165   --enable-omx             enable encoding via OpenMAX IL [no]
 166   --enable-omx-rpi         enable encoding via OpenMAX IL for Raspberry Pi [no]
 167
 168 Individual component options:
 169   --disable-everything     disable all components listed below
 170   --disable-encoder=NAME   disable encoder NAME
 171   --enable-encoder=NAME    enable encoder NAME
 172   --disable-encoders       disable all encoders
 173   --disable-decoder=NAME   disable decoder NAME
 174   --enable-decoder=NAME    enable decoder NAME
 175   --disable-decoders       disable all decoders
 176   --disable-hwaccel=NAME   disable hwaccel NAME
 177   --enable-hwaccel=NAME    enable hwaccel NAME
 178   --disable-hwaccels       disable all hwaccels
 179   --disable-muxer=NAME     disable muxer NAME
 180   --enable-muxer=NAME      enable muxer NAME
 181   --disable-muxers         disable all muxers
 182   --disable-demuxer=NAME   disable demuxer NAME
 183   --enable-demuxer=NAME    enable demuxer NAME
 184   --disable-demuxers       disable all demuxers
 185   --enable-parser=NAME     enable parser NAME
 186   --disable-parser=NAME    disable parser NAME
 187   --disable-parsers        disable all parsers
 188   --enable-bsf=NAME        enable bitstream filter NAME
 189   --disable-bsf=NAME       disable bitstream filter NAME
 190   --disable-bsfs           disable all bitstream filters
 191   --enable-protocol=NAME   enable protocol NAME
 192   --disable-protocol=NAME  disable protocol NAME
 193   --disable-protocols      disable all protocols
 194   --enable-indev=NAME      enable input device NAME
 195   --disable-indev=NAME     disable input device NAME
 196   --disable-indevs         disable input devices
 197   --enable-outdev=NAME     enable output device NAME
 198   --disable-outdev=NAME    disable output device NAME
 199   --disable-outdevs        disable output devices
 200   --disable-devices        disable all devices
 201   --enable-filter=NAME     enable filter NAME
 202   --disable-filter=NAME    disable filter NAME
 203   --disable-filters        disable all filters
 204
 205 External library support:
 206   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]
 207   --enable-avisynth        enable reading of AviSynth script files [no]
 208   --disable-bzlib          disable bzlib [autodetect]
 209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 210   --enable-frei0r          enable frei0r video filtering [no]
 211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 212                            if openssl, librtmp or gmp is not used [no]
 213   --enable-gmp             enable gmp, needed for rtmp(t)e support
 214                            if openssl or librtmp is not used [no]
 215   --enable-gnutls          enable gnutls, needed for https support
 216                            if openssl is not used [no]
 217   --disable-iconv          disable iconv [autodetect]
 218   --enable-jni             enable JNI support [no]
 219   --enable-ladspa          enable LADSPA audio filtering [no]
 220   --enable-libass          enable libass subtitles rendering,
 221                            needed for subtitles and ass filter [no]
 222   --enable-libbluray       enable BluRay reading using libbluray [no]
 223   --enable-libbs2b         enable bs2b DSP library [no]
 224   --enable-libcaca         enable textual display using libcaca [no]
 225   --enable-libcelt         enable CELT decoding via libcelt [no]
 226   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 227   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 228                            and libraw1394 [no]
 229   --enable-libebur128      enable libebur128 for EBU R128 measurement,
 230                            needed for loudnorm filter [no]
 231   --enable-libfaac         enable AAC encoding via libfaac [no]
 232   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 233   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 234   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 235   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 236   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 237   --enable-libgme          enable Game Music Emu via libgme [no]
 238   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 239   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 240   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 242   --enable-libmodplug      enable ModPlug via libmodplug [no]
 243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 244   --enable-libnut          enable NUT (de)muxing via libnut,
 245                            native (de)muxer exists [no]
 246   --enable-libnpp          enable NVIDIA Performance Primitives-based code [no]
 247   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 248   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 249   --enable-libopencv       enable video filtering via libopencv [no]
 250   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 251   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 252   --enable-libopus         enable Opus de/encoding via libopus [no]
 253   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 254   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 255   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 256   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 257   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 258   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 259   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 260   --enable-libsoxr         enable Include libsoxr resampling [no]
 261   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 262   --enable-libssh          enable SFTP protocol via libssh [no]
 263   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 264   --enable-libtheora       enable Theora encoding via libtheora [no]
 265   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 266   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 267   --enable-libvidstab      enable video stabilization using vid.stab [no]
 268   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 269   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 270                            native implementation exists [no]
 271   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 272   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 273   --enable-libwebp         enable WebP encoding via libwebp [no]
 274   --enable-libx264         enable H.264 encoding via x264 [no]
 275   --enable-libx265         enable HEVC encoding via x265 [no]
 276   --enable-libxavs         enable AVS encoding via xavs [no]
 277   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 278   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 279   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 280   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 281   --enable-libxvid         enable Xvid encoding via xvidcore,
 282                            native MPEG-4/Xvid encoder exists [no]
 283   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 284   --enable-libzmq          enable message passing via libzmq [no]
 285   --enable-libzvbi         enable teletext support via libzvbi [no]
 286   --disable-lzma           disable lzma [autodetect]
 287   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 288   --enable-mediacodec      enable Android MediaCodec support [no]
 289   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 290   --enable-openal          enable OpenAL 1.1 capture support [no]
 291   --enable-opencl          enable OpenCL code
 292   --enable-opengl          enable OpenGL rendering [no]
 293   --enable-openssl         enable openssl, needed for https support
 294                            if gnutls is not used [no]
 295   --disable-schannel       disable SChannel SSP, needed for TLS support on
 296                            Windows if openssl and gnutls are not used [autodetect]
 297   --disable-sdl            disable sdl [autodetect]
 298   --disable-securetransport disable Secure Transport, needed for TLS support
 299                            on OSX if openssl and gnutls are not used [autodetect]
 300   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 301   --enable-x11grab         enable X11 grabbing (legacy) [no]
 302   --disable-xlib           disable xlib [autodetect]
 303   --disable-zlib           disable zlib [autodetect]
 304
 305 Toolchain options:
 306   --arch=ARCH              select architecture [$arch]
 307   --cpu=CPU                select the minimum required CPU (affects
 308                            instruction selection, may crash on older CPUs)
 309   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 310   --progs-suffix=SUFFIX    program name suffix []
 311   --enable-cross-compile   assume a cross-compiler is used
 312   --sysroot=PATH           root of cross-build tree
 313   --sysinclude=PATH        location of cross-build system headers
 314   --target-os=OS           compiler targets OS [$target_os]
 315   --target-exec=CMD        command to run executables on target
 316   --target-path=DIR        path to view of build directory on target
 317   --target-samples=DIR     path to samples directory on target
 318   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 319   --toolchain=NAME         set tool defaults according to NAME
 320   --nm=NM                  use nm tool NM [$nm_default]
 321   --ar=AR                  use archive tool AR [$ar_default]
 322   --as=AS                  use assembler AS [$as_default]
 323   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 324   --strip=STRIP            use strip tool STRIP [$strip_default]
 325   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 326   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 327   --cc=CC                  use C compiler CC [$cc_default]
 328   --cxx=CXX                use C compiler CXX [$cxx_default]
 329   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 330   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 331   --ld=LD                  use linker LD [$ld_default]
 332   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 333   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 334   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 335   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 336   --host-cc=HOSTCC         use host C compiler HOSTCC
 337   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 338   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 339   --host-ld=HOSTLD         use host linker HOSTLD
 340   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 341   --host-libs=HLIBS        use libs HLIBS when linking for host
 342   --host-os=OS             compiler host OS [$target_os]
 343   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 344   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 345   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 346   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 347   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 348   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 349   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 350   --extra-version=STRING   version string suffix []
 351   --optflags=OPTFLAGS      override optimization-related compiler flags
 352   --build-suffix=SUFFIX    library name suffix []
 353   --enable-pic             build position-independent code
 354   --enable-thumb           compile for Thumb instruction set
 355   --enable-lto             use link-time optimization
 356   --env="ENV=override"     override the environment variables
 357
 358 Advanced options (experts only):
 359   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 360   --custom-allocator=NAME  use a supported custom allocator
 361   --disable-symver         disable symbol versioning
 362   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 363   --disable-safe-bitstream-reader
 364                            disable buffer boundary checking in bitreaders
 365                            (faster, but may crash)
 366   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 367   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 368
 369 Optimization options (experts only):
 370   --disable-asm            disable all assembly optimizations
 371   --disable-altivec        disable AltiVec optimizations
 372   --disable-vsx            disable VSX optimizations
 373   --disable-power8         disable POWER8 optimizations
 374   --disable-amd3dnow       disable 3DNow! optimizations
 375   --disable-amd3dnowext    disable 3DNow! extended optimizations
 376   --disable-mmx            disable MMX optimizations
 377   --disable-mmxext         disable MMXEXT optimizations
 378   --disable-sse            disable SSE optimizations
 379   --disable-sse2           disable SSE2 optimizations
 380   --disable-sse3           disable SSE3 optimizations
 381   --disable-ssse3          disable SSSE3 optimizations
 382   --disable-sse4           disable SSE4 optimizations
 383   --disable-sse42          disable SSE4.2 optimizations
 384   --disable-avx            disable AVX optimizations
 385   --disable-xop            disable XOP optimizations
 386   --disable-fma3           disable FMA3 optimizations
 387   --disable-fma4           disable FMA4 optimizations
 388   --disable-avx2           disable AVX2 optimizations
 389   --disable-aesni          disable AESNI optimizations
 390   --disable-armv5te        disable armv5te optimizations
 391   --disable-armv6          disable armv6 optimizations
 392   --disable-armv6t2        disable armv6t2 optimizations
 393   --disable-vfp            disable VFP optimizations
 394   --disable-neon           disable NEON optimizations
 395   --disable-inline-asm     disable use of inline assembly
 396   --disable-yasm           disable use of nasm/yasm assembly
 397   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 398   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 399   --disable-msa            disable MSA optimizations
 400   --disable-mipsfpu        disable floating point MIPS optimizations
 401   --disable-mmi            disable Loongson SIMD optimizations
 402   --disable-fast-unaligned consider unaligned accesses slow
 403
 404 Developer options (useful when working on FFmpeg itself):
 405   --disable-debug          disable debugging symbols
 406   --enable-debug=LEVEL     set the debug level [$debuglevel]
 407   --disable-optimizations  disable compiler optimizations
 408   --enable-extra-warnings  enable more compiler warnings
 409   --disable-stripping      disable stripping of executables and shared libraries
 410   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 411                            2 causes a slowdown at runtime.
 412   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 413   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 414                            leaks and errors, using the specified valgrind binary.
 415                            Cannot be combined with --target-exec
 416   --enable-ftrapv          Trap arithmetic overflows
 417   --samples=PATH           location of test samples for FATE, if not set use
 418                            \$FATE_SAMPLES at make invocation time.
 419   --enable-neon-clobber-test check NEON registers for clobbering (should be
 420                            used only for debugging purposes)
 421   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 422                            should be used only for debugging purposes)
 423   --enable-random          randomly enable/disable components
 424   --disable-random
 425   --enable-random=LIST     randomly enable/disable specific components or
 426   --disable-random=LIST    component groups. LIST is a comma-separated list
 427                            of NAME[:PROB] entries where NAME is a component
 428                            (group) and PROB the probability associated with
 429                            NAME (default 0.5).
 430   --random-seed=VALUE      seed value for --enable/disable-random
 431   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 432                            (only applies to --disable-optimizations builds)
 433
 434 NOTE: Object files are built at the place where configure is launched.
 435 EOF
 436   exit 0
 437 }
 438
 439 quotes='""'
 440 if test -t 1 && which tput >/dev/null 2>&1; then
 441     ncolors=$(tput colors)
 442     if test -n "$ncolors" && test $ncolors -ge 8; then
 443         bold_color=$(tput bold)
 444         warn_color=$(tput setaf 3)
 445         error_color=$(tput setaf 1)
 446         reset_color=$(tput sgr0)
 447     fi
 448     # 72 used instead of 80 since that's the default of pr
 449     ncols=$(tput cols)
 450 fi
 451 : ${ncols:=72}
 452
 453 log(){
 454     echo "$@" >> $logfile
 455 }
 456
 457 log_file(){
 458     log BEGIN $1
 459     pr -n -t $1 >> $logfile
 460     log END $1
 461 }
 462
 463 warn(){
 464     log "WARNING: $*"
 465     WARNINGS="${WARNINGS}WARNING: $*\n"
 466 }
 467
 468 die(){
 469     log "$@"
 470     echo "$error_color$bold_color$@$reset_color"
 471     cat <<EOF
 472
 473 If you think configure made a mistake, make sure you are using the latest
 474 version from Git.  If the latest version fails, report the problem to the
 475 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 476 EOF
 477     if disabled logging; then
 478         cat <<EOF
 479 Rerun configure with logging enabled (do not use --disable-logging), and
 480 include the log this produces with your report.
 481 EOF
 482     else
 483         cat <<EOF
 484 Include the log file "$logfile" produced by configure as this will help
 485 solve the problem.
 486 EOF
 487     fi
 488     exit 1
 489 }
 490
 491 # Avoid locale weirdness, besides we really just want to translate ASCII.
 492 toupper(){
 493     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 494 }
 495
 496 tolower(){
 497     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 498 }
 499
 500 c_escape(){
 501     echo "$*" | sed 's/["\\]/\\\0/g'
 502 }
 503
 504 sh_quote(){
 505     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 506     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 507     echo "$v"
 508 }
 509
 510 cleanws(){
 511     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 512 }
 513
 514 filter(){
 515     pat=$1
 516     shift
 517     for v; do
 518         eval "case $v in $pat) echo $v ;; esac"
 519     done
 520 }
 521
 522 filter_out(){
 523     pat=$1
 524     shift
 525     for v; do
 526         eval "case $v in $pat) ;; *) echo $v ;; esac"
 527     done
 528 }
 529
 530 map(){
 531     m=$1
 532     shift
 533     for v; do eval $m; done
 534 }
 535
 536 add_suffix(){
 537     suffix=$1
 538     shift
 539     for v; do echo ${v}${suffix}; done
 540 }
 541
 542 set_all(){
 543     value=$1
 544     shift
 545     for var in $*; do
 546         eval $var=$value
 547     done
 548 }
 549
 550 set_weak(){
 551     value=$1
 552     shift
 553     for var; do
 554         eval : \${$var:=$value}
 555     done
 556 }
 557
 558 sanitize_var_name(){
 559     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 560 }
 561
 562 set_safe(){
 563     var=$1
 564     shift
 565     eval $(sanitize_var_name "$var")='$*'
 566 }
 567
 568 get_safe(){
 569     eval echo \$$(sanitize_var_name "$1")
 570 }
 571
 572 pushvar(){
 573     for pvar in $*; do
 574         eval level=\${${pvar}_level:=0}
 575         eval ${pvar}_${level}="\$$pvar"
 576         eval ${pvar}_level=$(($level+1))
 577     done
 578 }
 579
 580 popvar(){
 581     for pvar in $*; do
 582         eval level=\${${pvar}_level:-0}
 583         test $level = 0 && continue
 584         eval level=$(($level-1))
 585         eval $pvar="\${${pvar}_${level}}"
 586         eval ${pvar}_level=$level
 587         eval unset ${pvar}_${level}
 588     done
 589 }
 590
 591 enable(){
 592     set_all yes $*
 593 }
 594
 595 disable(){
 596     set_all no $*
 597 }
 598
 599 enable_weak(){
 600     set_weak yes $*
 601 }
 602
 603 disable_weak(){
 604     set_weak no $*
 605 }
 606
 607 enable_safe(){
 608     for var; do
 609         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 610     done
 611 }
 612
 613 disable_safe(){
 614     for var; do
 615         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 616     done
 617 }
 618
 619 do_enable_deep(){
 620     for var; do
 621         enabled $var && continue
 622         eval sel="\$${var}_select"
 623         eval sgs="\$${var}_suggest"
 624         pushvar var sgs
 625         enable_deep $sel
 626         popvar sgs
 627         enable_deep_weak $sgs
 628         popvar var
 629     done
 630 }
 631
 632 enable_deep(){
 633     do_enable_deep $*
 634     enable $*
 635 }
 636
 637 enable_deep_weak(){
 638     for var; do
 639         disabled $var && continue
 640         pushvar var
 641         do_enable_deep $var
 642         popvar var
 643         enable_weak $var
 644     done
 645 }
 646
 647 enabled(){
 648     test "${1#!}" = "$1" && op='=' || op=!=
 649     eval test "x\$${1#!}" $op "xyes"
 650 }
 651
 652 disabled(){
 653     test "${1#!}" = "$1" && op='=' || op=!=
 654     eval test "x\$${1#!}" $op "xno"
 655 }
 656
 657 enabled_all(){
 658     for opt; do
 659         enabled $opt || return 1
 660     done
 661 }
 662
 663 disabled_all(){
 664     for opt; do
 665         disabled $opt || return 1
 666     done
 667 }
 668
 669 enabled_any(){
 670     for opt; do
 671         enabled $opt && return 0
 672     done
 673 }
 674
 675 disabled_any(){
 676     for opt; do
 677         disabled $opt && return 0
 678     done
 679     return 1
 680 }
 681
 682 set_default(){
 683     for opt; do
 684         eval : \${$opt:=\$${opt}_default}
 685     done
 686 }
 687
 688 is_in(){
 689     value=$1
 690     shift
 691     for var in $*; do
 692         [ $var = $value ] && return 0
 693     done
 694     return 1
 695 }
 696
 697 do_check_deps(){
 698     for cfg; do
 699         cfg="${cfg#!}"
 700         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 701         disabled ${cfg}_checking && continue
 702         enable ${cfg}_checking
 703         append allopts $cfg
 704
 705         eval dep_all="\$${cfg}_deps"
 706         eval dep_any="\$${cfg}_deps_any"
 707         eval dep_sel="\$${cfg}_select"
 708         eval dep_sgs="\$${cfg}_suggest"
 709         eval dep_ifa="\$${cfg}_if"
 710         eval dep_ifn="\$${cfg}_if_any"
 711
 712         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 713         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 714         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 715
 716         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 717         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 718         enabled_all  $dep_all || disable $cfg
 719         enabled_any  $dep_any || disable $cfg
 720         disabled_any $dep_sel && disable $cfg
 721
 722         if enabled $cfg; then
 723             enable_deep $dep_sel
 724             enable_deep_weak $dep_sgs
 725         fi
 726
 727         disable ${cfg}_checking
 728     done
 729 }
 730
 731 check_deps(){
 732     unset allopts
 733
 734     do_check_deps "$@"
 735
 736     for cfg in $allopts; do
 737         enabled $cfg || continue
 738         eval dep_extralibs="\$${cfg}_extralibs"
 739         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 740     done
 741 }
 742
 743 print_config(){
 744     pfx=$1
 745     files=$2
 746     shift 2
 747     map 'eval echo "$v \${$v:-no}"' "$@" |
 748     awk "BEGIN { split(\"$files\", files) }
 749         {
 750             c = \"$pfx\" toupper(\$1);
 751             v = \$2;
 752             sub(/yes/, 1, v);
 753             sub(/no/,  0, v);
 754             for (f in files) {
 755                 file = files[f];
 756                 if (file ~ /\\.h\$/) {
 757                     printf(\"#define %s %d\\n\", c, v) >>file;
 758                 } else if (file ~ /\\.asm\$/) {
 759                     printf(\"%%define %s %d\\n\", c, v) >>file;
 760                 } else if (file ~ /\\.mak\$/) {
 761                     n = -v ? \"\" : \"!\";
 762                     printf(\"%s%s=yes\\n\", n, c) >>file;
 763                 } else if (file ~ /\\.texi\$/) {
 764                     pre = -v ? \"\" : \"@c \";
 765                     yesno = \$2;
 766                     c2 = tolower(c);
 767                     gsub(/_/, \"-\", c2);
 768                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 769                 }
 770             }
 771         }"
 772 }
 773
 774 print_enabled(){
 775     suf=$1
 776     shift
 777     for v; do
 778         enabled $v && printf "%s\n" ${v%$suf}
 779     done
 780 }
 781
 782 append(){
 783     var=$1
 784     shift
 785     eval "$var=\"\$$var $*\""
 786 }
 787
 788 prepend(){
 789     var=$1
 790     shift
 791     eval "$var=\"$* \$$var\""
 792 }
 793
 794 unique(){
 795     var=$1
 796     uniq_list=""
 797     for tok in $(eval echo \$$var); do
 798         uniq_list="$(filter_out $tok $uniq_list) $tok"
 799     done
 800     eval "$var=\"${uniq_list}\""
 801 }
 802
 803 add_cppflags(){
 804     append CPPFLAGS "$@"
 805 }
 806
 807 add_cflags(){
 808     append CFLAGS $($cflags_filter "$@")
 809 }
 810
 811 add_cxxflags(){
 812     append CXXFLAGS $($cflags_filter "$@")
 813 }
 814
 815 add_asflags(){
 816     append ASFLAGS $($asflags_filter "$@")
 817 }
 818
 819 add_objcflags(){
 820     append OBJCFLAGS $($objcflags_filter "$@")
 821 }
 822
 823 add_ldflags(){
 824     append LDFLAGS $($ldflags_filter "$@")
 825 }
 826
 827 add_ldexeflags(){
 828     append LDEXEFLAGS $($ldflags_filter "$@")
 829 }
 830
 831 add_ldlibflags(){
 832     append LDLIBFLAGS $($ldflags_filter "$@")
 833 }
 834
 835 add_stripflags(){
 836     append ASMSTRIPFLAGS "$@"
 837 }
 838
 839 add_extralibs(){
 840     prepend extralibs $($ldflags_filter "$@")
 841 }
 842
 843 add_host_cppflags(){
 844     append host_cppflags "$@"
 845 }
 846
 847 add_host_cflags(){
 848     append host_cflags $($host_cflags_filter "$@")
 849 }
 850
 851 add_host_ldflags(){
 852     append host_ldflags $($host_ldflags_filter "$@")
 853 }
 854
 855 add_compat(){
 856     append compat_objs $1
 857     shift
 858     map 'add_cppflags -D$v' "$@"
 859 }
 860
 861 check_cmd(){
 862     log "$@"
 863     "$@" >> $logfile 2>&1
 864 }
 865
 866 check_stat(){
 867     log check_stat "$@"
 868     stat "$1" >> $logfile 2>&1
 869 }
 870
 871 cc_o(){
 872     eval printf '%s\\n' $CC_O
 873 }
 874
 875 cc_e(){
 876     eval printf '%s\\n' $CC_E
 877 }
 878
 879 check_cc(){
 880     log check_cc "$@"
 881     cat > $TMPC
 882     log_file $TMPC
 883     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 884 }
 885
 886 check_cxx(){
 887     log check_cxx "$@"
 888     cat > $TMPCPP
 889     log_file $TMPCPP
 890     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 891 }
 892
 893 check_objcc(){
 894     log check_objcc "$@"
 895     cat > $TMPM
 896     log_file $TMPM
 897     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 898 }
 899
 900 check_cpp(){
 901     log check_cpp "$@"
 902     cat > $TMPC
 903     log_file $TMPC
 904     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 905 }
 906
 907 as_o(){
 908     eval printf '%s\\n' $AS_O
 909 }
 910
 911 check_as(){
 912     log check_as "$@"
 913     cat > $TMPS
 914     log_file $TMPS
 915     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 916 }
 917
 918 check_inline_asm(){
 919     log check_inline_asm "$@"
 920     name="$1"
 921     code="$2"
 922     shift 2
 923     disable $name
 924     check_cc "$@" <<EOF && enable $name
 925 void foo(void){ __asm__ volatile($code); }
 926 EOF
 927 }
 928
 929 check_inline_asm_flags(){
 930     log check_inline_asm_flags "$@"
 931     name="$1"
 932     code="$2"
 933     flags=''
 934     shift 2
 935     while [ "$1" != "" ]; do
 936       append flags $1
 937       shift
 938     done;
 939     disable $name
 940     cat > $TMPC <<EOF
 941 void foo(void){ __asm__ volatile($code); }
 942 EOF
 943     log_file $TMPC
 944     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 945     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 946 }
 947
 948 check_insn(){
 949     log check_insn "$@"
 950     check_inline_asm ${1}_inline "\"$2\""
 951     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 952 }
 953
 954 check_yasm(){
 955     log check_yasm "$@"
 956     echo "$1" > $TMPS
 957     log_file $TMPS
 958     shift 1
 959     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 960 }
 961
 962 ld_o(){
 963     eval printf '%s\\n' $LD_O
 964 }
 965
 966 check_ld(){
 967     log check_ld "$@"
 968     type=$1
 969     shift 1
 970     flags=$(filter_out '-l*|*.so' $@)
 971     libs=$(filter '-l*|*.so' $@)
 972     check_$type $($cflags_filter $flags) || return
 973     flags=$($ldflags_filter $flags)
 974     libs=$($ldflags_filter $libs)
 975     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 976 }
 977
 978 print_include(){
 979     hdr=$1
 980     test "${hdr%.h}" = "${hdr}" &&
 981         echo "#include $hdr"    ||
 982         echo "#include <$hdr>"
 983 }
 984
 985 check_code(){
 986     log check_code "$@"
 987     check=$1
 988     headers=$2
 989     code=$3
 990     shift 3
 991     {
 992         for hdr in $headers; do
 993             print_include $hdr
 994         done
 995         echo "int main(void) { $code; return 0; }"
 996     } | check_$check "$@"
 997 }
 998
 999 check_cppflags(){
1000     log check_cppflags "$@"
1001     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1002 int x;
1003 EOF
1004 }
1005
1006 test_cflags(){
1007     log test_cflags "$@"
1008     set -- $($cflags_filter "$@")
1009     check_cc "$@" <<EOF
1010 int x;
1011 EOF
1012 }
1013
1014 check_cflags(){
1015     log check_cflags "$@"
1016     test_cflags "$@" && add_cflags "$@"
1017 }
1018
1019 check_cxxflags(){
1020     log check_cxxflags "$@"
1021     set -- $($cflags_filter "$@")
1022     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1023 int x;
1024 EOF
1025 }
1026
1027 test_objcflags(){
1028     log test_cflags "$@"
1029     set -- $($cflags_filter "$@")
1030     check_objcc "$@" <<EOF
1031 int x;
1032 EOF
1033 }
1034
1035 check_objcflags(){
1036     log check_cflags "$@"
1037     test_objcflags "$@" && add_objcflags "$@"
1038 }
1039
1040 test_ldflags(){
1041     log test_ldflags "$@"
1042     check_ld "cc" "$@" <<EOF
1043 int main(void){ return 0; }
1044 EOF
1045 }
1046
1047 check_ldflags(){
1048     log check_ldflags "$@"
1049     test_ldflags "$@" && add_ldflags "$@"
1050 }
1051
1052 test_stripflags(){
1053     log test_stripflags "$@"
1054     # call check_cc to get a fresh TMPO
1055     check_cc <<EOF
1056 int main(void) { return 0; }
1057 EOF
1058     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1059 }
1060
1061 check_stripflags(){
1062     log check_stripflags "$@"
1063     test_stripflags "$@" && add_stripflags "$@"
1064 }
1065
1066 check_header(){
1067     log check_header "$@"
1068     header=$1
1069     shift
1070     disable_safe $header
1071     check_cpp "$@" <<EOF && enable_safe $header
1072 #include <$header>
1073 int x;
1074 EOF
1075 }
1076
1077 check_header_objcc(){
1078     log check_header_objcc "$@"
1079     rm -f -- "$TMPO"
1080     header=$1
1081     shift
1082     disable_safe $header
1083     {
1084        echo "#include <$header>"
1085        echo "int main(void) { return 0; }"
1086     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1087 }
1088
1089 check_func(){
1090     log check_func "$@"
1091     func=$1
1092     shift
1093     disable $func
1094     check_ld "cc" "$@" <<EOF && enable $func
1095 extern int $func();
1096 int main(void){ $func(); }
1097 EOF
1098 }
1099
1100 check_complexfunc(){
1101     log check_complexfunc "$@"
1102     func=$1
1103     narg=$2
1104     shift 2
1105     test $narg = 2 && args="f, g" || args="f * I"
1106     disable $func
1107     check_ld "cc" "$@" <<EOF && enable $func
1108 #include <complex.h>
1109 #include <math.h>
1110 float foo(complex float f, complex float g) { return $func($args); }
1111 int main(void){ return (int) foo; }
1112 EOF
1113 }
1114
1115 check_mathfunc(){
1116     log check_mathfunc "$@"
1117     func=$1
1118     narg=$2
1119     shift 2
1120     test $narg = 2 && args="f, g" || args="f"
1121     disable $func
1122     check_ld "cc" "$@" <<EOF && enable $func
1123 #include <math.h>
1124 float foo(float f, float g) { return $func($args); }
1125 int main(void){ return (int) foo; }
1126 EOF
1127 }
1128
1129 check_func_headers(){
1130     log check_func_headers "$@"
1131     headers=$1
1132     funcs=$2
1133     shift 2
1134     {
1135         for hdr in $headers; do
1136             print_include $hdr
1137         done
1138         for func in $funcs; do
1139             echo "long check_$func(void) { return (long) $func; }"
1140         done
1141         echo "int main(void) { return 0; }"
1142     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1143 }
1144
1145 check_class_headers_cpp(){
1146     log check_class_headers_cpp "$@"
1147     headers=$1
1148     classes=$2
1149     shift 2
1150     {
1151         for hdr in $headers; do
1152             echo "#include <$hdr>"
1153         done
1154         echo "int main(void) { "
1155         i=1
1156         for class in $classes; do
1157             echo "$class obj$i;"
1158             i=$(expr $i + 1)
1159         done
1160         echo "return 0; }"
1161     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1162 }
1163
1164 check_cpp_condition(){
1165     log check_cpp_condition "$@"
1166     header=$1
1167     condition=$2
1168     shift 2
1169     check_cpp "$@" <<EOF
1170 #include <$header>
1171 #if !($condition)
1172 #error "unsatisfied condition: $condition"
1173 #endif
1174 EOF
1175 }
1176
1177 check_lib(){
1178     log check_lib "$@"
1179     header="$1"
1180     func="$2"
1181     shift 2
1182     check_header $header && check_func $func "$@" && add_extralibs "$@"
1183 }
1184
1185 check_lib2(){
1186     log check_lib2 "$@"
1187     headers="$1"
1188     funcs="$2"
1189     shift 2
1190     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1191 }
1192
1193 check_lib_cpp(){
1194     log check_lib_cpp "$@"
1195     headers="$1"
1196     classes="$2"
1197     shift 2
1198     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1199 }
1200
1201 check_pkg_config(){
1202     log check_pkg_config "$@"
1203     pkgandversion="$1"
1204     pkg="${1%% *}"
1205     headers="$2"
1206     funcs="$3"
1207     shift 3
1208     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1209     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1210     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1211     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1212         set_safe "${pkg}_cflags" $pkg_cflags   &&
1213         set_safe "${pkg}_libs"   $pkg_libs
1214 }
1215
1216 check_exec(){
1217     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1218 }
1219
1220 check_exec_crash(){
1221     code=$(cat)
1222
1223     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1224     # are safe but may not be available everywhere.  Thus we use
1225     # raise(SIGTERM) instead.  The check is run in a subshell so we
1226     # can redirect the "Terminated" message from the shell.  SIGBUS
1227     # is not defined by standard C so it is used conditionally.
1228
1229     (check_exec "$@") >> $logfile 2>&1 <<EOF
1230 #include <signal.h>
1231 static void sighandler(int sig){
1232     raise(SIGTERM);
1233 }
1234 int foo(void){
1235     $code
1236 }
1237 int (*func_ptr)(void) = foo;
1238 int main(void){
1239     signal(SIGILL, sighandler);
1240     signal(SIGFPE, sighandler);
1241     signal(SIGSEGV, sighandler);
1242 #ifdef SIGBUS
1243     signal(SIGBUS, sighandler);
1244 #endif
1245     return func_ptr();
1246 }
1247 EOF
1248 }
1249
1250 check_type(){
1251     log check_type "$@"
1252     headers=$1
1253     type=$2
1254     shift 2
1255     disable_safe "$type"
1256     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1257 }
1258
1259 check_struct(){
1260     log check_struct "$@"
1261     headers=$1
1262     struct=$2
1263     member=$3
1264     shift 3
1265     disable_safe "${struct}_${member}"
1266     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1267         enable_safe "${struct}_${member}"
1268 }
1269
1270 check_builtin(){
1271     log check_builtin "$@"
1272     name=$1
1273     headers=$2
1274     builtin=$3
1275     shift 3
1276     disable "$name"
1277     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1278 }
1279
1280 check_compile_assert(){
1281     log check_compile_assert "$@"
1282     name=$1
1283     headers=$2
1284     condition=$3
1285     shift 3
1286     disable "$name"
1287     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1288 }
1289
1290 require(){
1291     name="$1"
1292     header="$2"
1293     func="$3"
1294     shift 3
1295     check_lib $header $func "$@" || die "ERROR: $name not found"
1296 }
1297
1298 require2(){
1299     name="$1"
1300     headers="$2"
1301     func="$3"
1302     shift 3
1303     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1304 }
1305
1306 require_cpp(){
1307     name="$1"
1308     headers="$2"
1309     classes="$3"
1310     shift 3
1311     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1312 }
1313
1314 use_pkg_config(){
1315     pkg="$1"
1316     check_pkg_config "$@" || return 1
1317     add_cflags    $(get_safe "${pkg}_cflags")
1318     add_extralibs $(get_safe "${pkg}_libs")
1319 }
1320
1321 require_pkg_config(){
1322     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1323 }
1324
1325 require_libfreetype(){
1326     log require_libfreetype "$@"
1327     pkg="freetype2"
1328     check_cmd $pkg_config --exists --print-errors $pkg \
1329       || die "ERROR: $pkg not found"
1330     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1331     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1332     {
1333         echo "#include <ft2build.h>"
1334         echo "#include FT_FREETYPE_H"
1335         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1336         echo "int main(void) { return 0; }"
1337     } | check_ld "cc" $pkg_cflags $pkg_libs \
1338       && set_safe "${pkg}_cflags" $pkg_cflags \
1339       && set_safe "${pkg}_libs"   $pkg_libs \
1340       || die "ERROR: $pkg not found"
1341     add_cflags    $(get_safe "${pkg}_cflags")
1342     add_extralibs $(get_safe "${pkg}_libs")
1343 }
1344
1345 hostcc_e(){
1346     eval printf '%s\\n' $HOSTCC_E
1347 }
1348
1349 hostcc_o(){
1350     eval printf '%s\\n' $HOSTCC_O
1351 }
1352
1353 check_host_cc(){
1354     log check_host_cc "$@"
1355     cat > $TMPC
1356     log_file $TMPC
1357     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1358 }
1359
1360 check_host_cpp(){
1361     log check_host_cpp "$@"
1362     cat > $TMPC
1363     log_file $TMPC
1364     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1365 }
1366
1367 check_host_cppflags(){
1368     log check_host_cppflags "$@"
1369     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1370 int x;
1371 EOF
1372 }
1373
1374 check_host_cflags(){
1375     log check_host_cflags "$@"
1376     set -- $($host_cflags_filter "$@")
1377     check_host_cc "$@" <<EOF && append host_cflags "$@"
1378 int x;
1379 EOF
1380 }
1381
1382 check_host_cpp_condition(){
1383     log check_host_cpp_condition "$@"
1384     header=$1
1385     condition=$2
1386     shift 2
1387     check_host_cpp "$@" <<EOF
1388 #include <$header>
1389 #if !($condition)
1390 #error "unsatisfied condition: $condition"
1391 #endif
1392 EOF
1393 }
1394
1395 cp_if_changed(){
1396     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1397     mkdir -p "$(dirname $2)"
1398     $cp_f "$1" "$2"
1399 }
1400
1401 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1402 # system-dependent things.
1403
1404 AVCODEC_COMPONENTS="
1405     bsfs
1406     decoders
1407     encoders
1408     hwaccels
1409     parsers
1410 "
1411
1412 AVDEVICE_COMPONENTS="
1413     indevs
1414     outdevs
1415 "
1416 AVFILTER_COMPONENTS="
1417     filters
1418 "
1419 AVFORMAT_COMPONENTS="
1420     demuxers
1421     muxers
1422     protocols
1423 "
1424
1425 AVRESAMPLE_COMPONENTS=""
1426 AVUTIL_COMPONENTS=""
1427
1428 COMPONENT_LIST="
1429     $AVCODEC_COMPONENTS
1430     $AVDEVICE_COMPONENTS
1431     $AVFILTER_COMPONENTS
1432     $AVFORMAT_COMPONENTS
1433     $AVRESAMPLE_COMPONENTS
1434     $AVUTIL_COMPONENTS
1435 "
1436
1437 EXAMPLE_LIST="
1438     avio_reading_example
1439     avio_dir_cmd_example
1440     decoding_encoding_example
1441     demuxing_decoding_example
1442     extract_mvs_example
1443     filter_audio_example
1444     filtering_audio_example
1445     filtering_video_example
1446     metadata_example
1447     muxing_example
1448     qsvdec_example
1449     remuxing_example
1450     resampling_audio_example
1451     scaling_video_example
1452     transcode_aac_example
1453     transcoding_example
1454 "
1455
1456 EXTERNAL_LIBRARY_LIST="
1457     audiotoolbox
1458     avisynth
1459     bzlib
1460     chromaprint
1461     crystalhd
1462     decklink
1463     frei0r
1464     gcrypt
1465     gmp
1466     gnutls
1467     iconv
1468     jni
1469     ladspa
1470     libass
1471     libbluray
1472     libbs2b
1473     libcaca
1474     libcdio
1475     libcelt
1476     libdc1394
1477     libebur128
1478     libfaac
1479     libfdk_aac
1480     libflite
1481     libfontconfig
1482     libfreetype
1483     libfribidi
1484     libgme
1485     libgsm
1486     libiec61883
1487     libilbc
1488     libkvazaar
1489     libmodplug
1490     libmp3lame
1491     libnut
1492     libnpp
1493     libopencore_amrnb
1494     libopencore_amrwb
1495     libopencv
1496     libopenh264
1497     libopenjpeg
1498     libopus
1499     libpulse
1500     librtmp
1501     librubberband
1502     libschroedinger
1503     libshine
1504     libsmbclient
1505     libsnappy
1506     libsoxr
1507     libspeex
1508     libssh
1509     libtesseract
1510     libtheora
1511     libtwolame
1512     libv4l2
1513     libvidstab
1514     libvo_amrwbenc
1515     libvorbis
1516     libvpx
1517     libwavpack
1518     libwebp
1519     libx264
1520     libx265
1521     libxavs
1522     libxcb
1523     libxcb_shm
1524     libxcb_shape
1525     libxcb_xfixes
1526     libxvid
1527     libzimg
1528     libzmq
1529     libzvbi
1530     lzma
1531     mediacodec
1532     netcdf
1533     openal
1534     opencl
1535     opengl
1536     openssl
1537     schannel
1538     sdl
1539     securetransport
1540     videotoolbox
1541     x11grab
1542     xlib
1543     zlib
1544 "
1545
1546 DOCUMENT_LIST="
1547     doc
1548     htmlpages
1549     manpages
1550     podpages
1551     txtpages
1552 "
1553
1554 FEATURE_LIST="
1555     ftrapv
1556     gray
1557     hardcoded_tables
1558     omx_rpi
1559     runtime_cpudetect
1560     safe_bitstream_reader
1561     shared
1562     small
1563     static
1564     swscale_alpha
1565 "
1566
1567 HW_CODECS_LIST="
1568     cuda
1569     cuvid
1570     libmfx
1571     mmal
1572     nvenc
1573     omx
1574 "
1575
1576 HWACCEL_LIST="
1577     d3d11va
1578     dxva2
1579     vaapi
1580     vda
1581     vdpau
1582     videotoolbox_hwaccel
1583     xvmc
1584 "
1585
1586 LIBRARY_LIST="
1587     avcodec
1588     avdevice
1589     avfilter
1590     avformat
1591     avresample
1592     avutil
1593     postproc
1594     swresample
1595     swscale
1596 "
1597
1598 LICENSE_LIST="
1599     gpl
1600     nonfree
1601     version3
1602 "
1603
1604 PROGRAM_LIST="
1605     ffplay
1606     ffprobe
1607     ffserver
1608     ffmpeg
1609 "
1610
1611 SUBSYSTEM_LIST="
1612     dct
1613     dwt
1614     error_resilience
1615     faan
1616     fast_unaligned
1617     fft
1618     lsp
1619     lzo
1620     mdct
1621     pixelutils
1622     network
1623     rdft
1624 "
1625
1626 CONFIG_LIST="
1627     $COMPONENT_LIST
1628     $DOCUMENT_LIST
1629     $EXAMPLE_LIST
1630     $EXTERNAL_LIBRARY_LIST
1631     $FEATURE_LIST
1632     $HW_CODECS_LIST
1633     $HWACCEL_LIST
1634     $LICENSE_LIST
1635     $LIBRARY_LIST
1636     $PROGRAM_LIST
1637     $SUBSYSTEM_LIST
1638     fontconfig
1639     incompatible_libav_abi
1640     memalign_hack
1641     memory_poisoning
1642     neon_clobber_test
1643     pic
1644     pod2man
1645     raise_major
1646     thumb
1647     valgrind_backtrace
1648     xmm_clobber_test
1649 "
1650
1651 THREADS_LIST="
1652     pthreads
1653     os2threads
1654     w32threads
1655 "
1656
1657 ATOMICS_LIST="
1658     atomics_gcc
1659     atomics_suncc
1660     atomics_win32
1661 "
1662
1663 ARCH_LIST="
1664     aarch64
1665     alpha
1666     arm
1667     avr32
1668     avr32_ap
1669     avr32_uc
1670     bfin
1671     ia64
1672     m68k
1673     mips
1674     mips64
1675     parisc
1676     ppc
1677     ppc64
1678     s390
1679     sh4
1680     sparc
1681     sparc64
1682     tilegx
1683     tilepro
1684     tomi
1685     x86
1686     x86_32
1687     x86_64
1688 "
1689
1690 ARCH_EXT_LIST_ARM="
1691     armv5te
1692     armv6
1693     armv6t2
1694     armv8
1695     neon
1696     vfp
1697     vfpv3
1698     setend
1699 "
1700
1701 ARCH_EXT_LIST_MIPS="
1702     mipsfpu
1703     mips32r2
1704     mips32r5
1705     mips64r2
1706     mips32r6
1707     mips64r6
1708     mipsdsp
1709     mipsdspr2
1710     msa
1711 "
1712
1713 ARCH_EXT_LIST_LOONGSON="
1714     loongson2
1715     loongson3
1716     mmi
1717 "
1718
1719 ARCH_EXT_LIST_X86_SIMD="
1720     aesni
1721     amd3dnow
1722     amd3dnowext
1723     avx
1724     avx2
1725     fma3
1726     fma4
1727     mmx
1728     mmxext
1729     sse
1730     sse2
1731     sse3
1732     sse4
1733     sse42
1734     ssse3
1735     xop
1736 "
1737
1738 ARCH_EXT_LIST_PPC="
1739     altivec
1740     dcbzl
1741     ldbrx
1742     power8
1743     ppc4xx
1744     vsx
1745 "
1746
1747 ARCH_EXT_LIST_X86="
1748     $ARCH_EXT_LIST_X86_SIMD
1749     cpunop
1750     i686
1751 "
1752
1753 ARCH_EXT_LIST="
1754     $ARCH_EXT_LIST_ARM
1755     $ARCH_EXT_LIST_PPC
1756     $ARCH_EXT_LIST_X86
1757     $ARCH_EXT_LIST_MIPS
1758     $ARCH_EXT_LIST_LOONGSON
1759 "
1760
1761 ARCH_FEATURES="
1762     aligned_stack
1763     fast_64bit
1764     fast_clz
1765     fast_cmov
1766     local_aligned_8
1767     local_aligned_16
1768     local_aligned_32
1769     simd_align_16
1770 "
1771
1772 BUILTIN_LIST="
1773     atomic_cas_ptr
1774     atomic_compare_exchange
1775     machine_rw_barrier
1776     MemoryBarrier
1777     mm_empty
1778     rdtsc
1779     sarestart
1780     sem_timedwait
1781     sync_val_compare_and_swap
1782 "
1783 HAVE_LIST_CMDLINE="
1784     inline_asm
1785     symver
1786     yasm
1787 "
1788
1789 HAVE_LIST_PUB="
1790     bigendian
1791     fast_unaligned
1792     incompatible_libav_abi
1793 "
1794
1795 HEADERS_LIST="
1796     alsa_asoundlib_h
1797     altivec_h
1798     arpa_inet_h
1799     asm_types_h
1800     cdio_paranoia_h
1801     cdio_paranoia_paranoia_h
1802     dispatch_dispatch_h
1803     dev_bktr_ioctl_bt848_h
1804     dev_bktr_ioctl_meteor_h
1805     dev_ic_bt8xx_h
1806     dev_video_bktr_ioctl_bt848_h
1807     dev_video_meteor_ioctl_meteor_h
1808     direct_h
1809     dirent_h
1810     dlfcn_h
1811     d3d11_h
1812     dxva_h
1813     ES2_gl_h
1814     gsm_h
1815     io_h
1816     mach_mach_time_h
1817     machine_ioctl_bt848_h
1818     machine_ioctl_meteor_h
1819     malloc_h
1820     opencv2_core_core_c_h
1821     openjpeg_2_1_openjpeg_h
1822     openjpeg_2_0_openjpeg_h
1823     openjpeg_1_5_openjpeg_h
1824     OpenGL_gl3_h
1825     poll_h
1826     sndio_h
1827     soundcard_h
1828     sys_mman_h
1829     sys_param_h
1830     sys_resource_h
1831     sys_select_h
1832     sys_soundcard_h
1833     sys_time_h
1834     sys_un_h
1835     sys_videoio_h
1836     termios_h
1837     udplite_h
1838     unistd_h
1839     valgrind_valgrind_h
1840     windows_h
1841     winsock2_h
1842 "
1843
1844 INTRINSICS_LIST="
1845     intrinsics_neon
1846 "
1847
1848 COMPLEX_FUNCS="
1849     cabs
1850     cexp
1851 "
1852
1853 MATH_FUNCS="
1854     atanf
1855     atan2f
1856     cbrt
1857     cbrtf
1858     copysign
1859     cosf
1860     erf
1861     exp2
1862     exp2f
1863     expf
1864     hypot
1865     isfinite
1866     isinf
1867     isnan
1868     ldexpf
1869     llrint
1870     llrintf
1871     log2
1872     log2f
1873     log10f
1874     lrint
1875     lrintf
1876     powf
1877     rint
1878     round
1879     roundf
1880     sinf
1881     trunc
1882     truncf
1883 "
1884
1885 SYSTEM_FUNCS="
1886     access
1887     aligned_malloc
1888     arc4random
1889     clock_gettime
1890     closesocket
1891     CommandLineToArgvW
1892     CoTaskMemFree
1893     CryptGenRandom
1894     dlopen
1895     fcntl
1896     flt_lim
1897     fork
1898     getaddrinfo
1899     gethrtime
1900     getopt
1901     GetProcessAffinityMask
1902     GetProcessMemoryInfo
1903     GetProcessTimes
1904     getrusage
1905     GetSystemTimeAsFileTime
1906     gettimeofday
1907     glob
1908     glXGetProcAddress
1909     gmtime_r
1910     inet_aton
1911     isatty
1912     jack_port_get_latency_range
1913     kbhit
1914     localtime_r
1915     lstat
1916     lzo1x_999_compress
1917     mach_absolute_time
1918     MapViewOfFile
1919     memalign
1920     mkstemp
1921     mmap
1922     mprotect
1923     nanosleep
1924     PeekNamedPipe
1925     posix_memalign
1926     pthread_cancel
1927     sched_getaffinity
1928     SetConsoleTextAttribute
1929     SetConsoleCtrlHandler
1930     setmode
1931     setrlimit
1932     Sleep
1933     strerror_r
1934     sysconf
1935     sysctl
1936     usleep
1937     UTGetOSTypeFromString
1938     VirtualAlloc
1939     wglGetProcAddress
1940 "
1941
1942 TOOLCHAIN_FEATURES="
1943     as_dn_directive
1944     as_func
1945     as_object_arch
1946     asm_mod_q
1947     attribute_may_alias
1948     attribute_packed
1949     ebp_available
1950     ebx_available
1951     gnu_as
1952     gnu_windres
1953     ibm_asm
1954     inline_asm_direct_symbol_refs
1955     inline_asm_labels
1956     inline_asm_nonlocal_labels
1957     pragma_deprecated
1958     rsync_contimeout
1959     symver_asm_label
1960     symver_gnu_asm
1961     vfp_args
1962     xform_asm
1963     xmm_clobbers
1964 "
1965
1966 TYPES_LIST="
1967     CONDITION_VARIABLE_Ptr
1968     socklen_t
1969     struct_addrinfo
1970     struct_group_source_req
1971     struct_ip_mreq_source
1972     struct_ipv6_mreq
1973     struct_msghdr_msg_flags
1974     struct_pollfd
1975     struct_rusage_ru_maxrss
1976     struct_sctp_event_subscribe
1977     struct_sockaddr_in6
1978     struct_sockaddr_sa_len
1979     struct_sockaddr_storage
1980     struct_stat_st_mtim_tv_nsec
1981     struct_v4l2_frmivalenum_discrete
1982 "
1983
1984 HAVE_LIST="
1985     $ARCH_EXT_LIST
1986     $(add_suffix _external $ARCH_EXT_LIST)
1987     $(add_suffix _inline   $ARCH_EXT_LIST)
1988     $ARCH_FEATURES
1989     $ATOMICS_LIST
1990     $BUILTIN_LIST
1991     $COMPLEX_FUNCS
1992     $HAVE_LIST_CMDLINE
1993     $HAVE_LIST_PUB
1994     $HEADERS_LIST
1995     $INTRINSICS_LIST
1996     $MATH_FUNCS
1997     $SYSTEM_FUNCS
1998     $THREADS_LIST
1999     $TOOLCHAIN_FEATURES
2000     $TYPES_LIST
2001     atomics_native
2002     dos_paths
2003     dxva2_lib
2004     dxva2api_cobj
2005     libc_msvcrt
2006     libdc1394_1
2007     libdc1394_2
2008     makeinfo
2009     makeinfo_html
2010     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2011     perl
2012     pod2man
2013     sdl
2014     section_data_rel_ro
2015     texi2html
2016     threads
2017     vaapi_drm
2018     vaapi_x11
2019     vdpau_x11
2020     winrt
2021     xlib
2022 "
2023
2024 # options emitted with CONFIG_ prefix but not available on the command line
2025 CONFIG_EXTRA="
2026     aandcttables
2027     ac3dsp
2028     audio_frame_queue
2029     audiodsp
2030     blockdsp
2031     bswapdsp
2032     cabac
2033     dirac_parse
2034     dvprofile
2035     exif
2036     faandct
2037     faanidct
2038     fdctdsp
2039     flacdsp
2040     fmtconvert
2041     frame_thread_encoder
2042     g722dsp
2043     golomb
2044     gplv3
2045     h263dsp
2046     h264chroma
2047     h264dsp
2048     h264pred
2049     h264qpel
2050     hpeldsp
2051     huffman
2052     huffyuvdsp
2053     huffyuvencdsp
2054     idctdsp
2055     iirfilter
2056     imdct15
2057     intrax8
2058     iso_media
2059     ividsp
2060     jpegtables
2061     lgplv3
2062     libx262
2063     llauddsp
2064     llviddsp
2065     lpc
2066     lzf
2067     me_cmp
2068     mpeg_er
2069     mpegaudio
2070     mpegaudiodsp
2071     mpegvideo
2072     mpegvideoenc
2073     mss34dsp
2074     pixblockdsp
2075     qpeldsp
2076     qsv
2077     qsvdec
2078     qsvenc
2079     rangecoder
2080     riffdec
2081     riffenc
2082     rtpdec
2083     rtpenc_chain
2084     rv34dsp
2085     sinewin
2086     snappy
2087     srtp
2088     startcode
2089     texturedsp
2090     texturedspenc
2091     tpeldsp
2092     vaapi_encode
2093     vc1dsp
2094     videodsp
2095     vp3dsp
2096     vp56dsp
2097     vp8dsp
2098     vt_bt2020
2099     wma_freqs
2100     wmv2dsp
2101 "
2102
2103 CMDLINE_SELECT="
2104     $ARCH_EXT_LIST
2105     $CONFIG_LIST
2106     $HAVE_LIST_CMDLINE
2107     $THREADS_LIST
2108     asm
2109     cross_compile
2110     debug
2111     extra_warnings
2112     logging
2113     lto
2114     optimizations
2115     rpath
2116     stripping
2117 "
2118
2119 PATHS_LIST="
2120     bindir
2121     datadir
2122     docdir
2123     incdir
2124     libdir
2125     mandir
2126     pkgconfigdir
2127     prefix
2128     shlibdir
2129     install_name_dir
2130 "
2131
2132 CMDLINE_SET="
2133     $PATHS_LIST
2134     ar
2135     arch
2136     as
2137     assert_level
2138     build_suffix
2139     cc
2140     objcc
2141     cpu
2142     cross_prefix
2143     custom_allocator
2144     cxx
2145     dep_cc
2146     doxygen
2147     env
2148     extra_version
2149     gas
2150     host_cc
2151     host_cflags
2152     host_ld
2153     host_ldflags
2154     host_libs
2155     host_os
2156     install
2157     ld
2158     ln_s
2159     logfile
2160     malloc_prefix
2161     nm
2162     optflags
2163     pkg_config
2164     pkg_config_flags
2165     progs_suffix
2166     random_seed
2167     ranlib
2168     samples
2169     strip
2170     sws_max_filter_size
2171     sysinclude
2172     sysroot
2173     target_exec
2174     target_os
2175     target_path
2176     target_samples
2177     tempprefix
2178     toolchain
2179     valgrind
2180     yasmexe
2181 "
2182
2183 CMDLINE_APPEND="
2184     extra_cflags
2185     extra_cxxflags
2186     extra_objcflags
2187     host_cppflags
2188 "
2189
2190 # code dependency declarations
2191
2192 # architecture extensions
2193
2194 armv5te_deps="arm"
2195 armv6_deps="arm"
2196 armv6t2_deps="arm"
2197 armv8_deps="aarch64"
2198 neon_deps_any="aarch64 arm"
2199 intrinsics_neon_deps="neon"
2200 vfp_deps_any="aarch64 arm"
2201 vfpv3_deps="vfp"
2202 setend_deps="arm"
2203
2204 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2205
2206 mipsfpu_deps="mips"
2207 mipsdsp_deps="mips"
2208 mipsdspr2_deps="mips"
2209 mips32r2_deps="mips"
2210 mips32r5_deps="mips"
2211 mips32r6_deps="mips"
2212 mips64r2_deps="mips"
2213 mips64r6_deps="mips"
2214 msa_deps="mipsfpu"
2215 mmi_deps="mips"
2216
2217 altivec_deps="ppc"
2218 dcbzl_deps="ppc"
2219 ldbrx_deps="ppc"
2220 ppc4xx_deps="ppc"
2221 vsx_deps="altivec"
2222 power8_deps="vsx"
2223
2224 cpunop_deps="i686"
2225 x86_64_select="i686"
2226 x86_64_suggest="fast_cmov"
2227
2228 amd3dnow_deps="mmx"
2229 amd3dnowext_deps="amd3dnow"
2230 i686_deps="x86"
2231 mmx_deps="x86"
2232 mmxext_deps="mmx"
2233 sse_deps="mmxext"
2234 sse2_deps="sse"
2235 sse3_deps="sse2"
2236 ssse3_deps="sse3"
2237 sse4_deps="ssse3"
2238 sse42_deps="sse4"
2239 aesni_deps="sse42"
2240 avx_deps="sse42"
2241 xop_deps="avx"
2242 fma3_deps="avx"
2243 fma4_deps="avx"
2244 avx2_deps="avx"
2245
2246 mmx_external_deps="yasm"
2247 mmx_inline_deps="inline_asm"
2248 mmx_suggest="mmx_external mmx_inline"
2249
2250 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2251     eval dep=\$${ext}_deps
2252     eval ${ext}_external_deps='"${dep}_external"'
2253     eval ${ext}_inline_deps='"${dep}_inline"'
2254     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2255 done
2256
2257 aligned_stack_if_any="aarch64 ppc x86"
2258 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2259 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2260 fast_unaligned_if_any="aarch64 ppc x86"
2261 simd_align_16_if_any="altivec neon sse"
2262
2263 # system capabilities
2264 symver_if_any="symver_asm_label symver_gnu_asm"
2265 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2266
2267 # threading support
2268 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2269 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2270 atomics_win32_if="MemoryBarrier"
2271 atomics_native_if_any="$ATOMICS_LIST"
2272 w32threads_deps="atomics_native"
2273 threads_if_any="$THREADS_LIST"
2274
2275 # subsystems
2276 dct_select="rdft"
2277 dirac_parse_select="golomb"
2278 error_resilience_select="me_cmp"
2279 faandct_deps="faan fdctdsp"
2280 faanidct_deps="faan idctdsp"
2281 h264dsp_select="startcode"
2282 frame_thread_encoder_deps="encoders threads"
2283 intrax8_select="blockdsp idctdsp"
2284 mdct_select="fft"
2285 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2286 mpeg_er_select="error_resilience"
2287 mpegaudio_select="mpegaudiodsp"
2288 mpegaudiodsp_select="dct"
2289 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2290 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2291 vc1dsp_select="h264chroma qpeldsp startcode"
2292 rdft_select="fft"
2293
2294 # decoders / encoders
2295 aac_decoder_select="imdct15 mdct sinewin"
2296 aac_fixed_decoder_select="mdct sinewin"
2297 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2298 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2299 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2300 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2301 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2302 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2303 adpcm_g722_decoder_select="g722dsp"
2304 adpcm_g722_encoder_select="g722dsp"
2305 aic_decoder_select="golomb idctdsp"
2306 alac_encoder_select="lpc"
2307 als_decoder_select="bswapdsp"
2308 amrnb_decoder_select="lsp"
2309 amrwb_decoder_select="lsp"
2310 amv_decoder_select="sp5x_decoder exif"
2311 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2312 ape_decoder_select="bswapdsp llauddsp"
2313 apng_decoder_select="zlib"
2314 apng_encoder_select="huffyuvencdsp zlib"
2315 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2316 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2317 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2318 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2319 atrac1_decoder_select="mdct sinewin"
2320 atrac3_decoder_select="mdct"
2321 atrac3p_decoder_select="mdct sinewin"
2322 avrn_decoder_select="exif jpegtables"
2323 bink_decoder_select="blockdsp hpeldsp"
2324 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2325 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2326 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2327 cllc_decoder_select="bswapdsp"
2328 comfortnoise_encoder_select="lpc"
2329 cook_decoder_select="audiodsp mdct sinewin"
2330 cscd_decoder_select="lzo"
2331 cscd_decoder_suggest="zlib"
2332 dca_decoder_select="mdct"
2333 dds_decoder_select="texturedsp"
2334 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2335 dnxhd_decoder_select="blockdsp idctdsp"
2336 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2337 dvvideo_decoder_select="dvprofile idctdsp"
2338 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2339 dxa_decoder_select="zlib"
2340 dxv_decoder_select="lzf texturedsp"
2341 eac3_decoder_select="ac3_decoder"
2342 eac3_encoder_select="ac3_encoder"
2343 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2344 eatgq_decoder_select="aandcttables"
2345 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2346 exr_decoder_select="zlib"
2347 ffv1_decoder_select="golomb rangecoder"
2348 ffv1_encoder_select="rangecoder"
2349 ffvhuff_decoder_select="huffyuv_decoder"
2350 ffvhuff_encoder_select="huffyuv_encoder"
2351 fic_decoder_select="golomb"
2352 flac_decoder_select="flacdsp golomb"
2353 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2354 flashsv2_decoder_select="zlib"
2355 flashsv2_encoder_select="zlib"
2356 flashsv_decoder_select="zlib"
2357 flashsv_encoder_select="zlib"
2358 flv_decoder_select="h263_decoder"
2359 flv_encoder_select="h263_encoder"
2360 fourxm_decoder_select="blockdsp bswapdsp"
2361 fraps_decoder_select="bswapdsp huffman"
2362 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2363 g729_decoder_select="audiodsp"
2364 h261_decoder_select="mpegvideo"
2365 h261_encoder_select="aandcttables mpegvideoenc"
2366 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2367 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2368 h263i_decoder_select="h263_decoder"
2369 h263p_decoder_select="h263_decoder"
2370 h263p_encoder_select="h263_encoder"
2371 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2372 h264_decoder_suggest="error_resilience"
2373 hap_decoder_select="snappy texturedsp"
2374 hap_encoder_deps="libsnappy"
2375 hap_encoder_select="texturedspenc"
2376 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2377 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2378 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2379 iac_decoder_select="imc_decoder"
2380 imc_decoder_select="bswapdsp fft mdct sinewin"
2381 indeo3_decoder_select="hpeldsp"
2382 indeo4_decoder_select="ividsp"
2383 indeo5_decoder_select="ividsp"
2384 interplay_video_decoder_select="hpeldsp"
2385 jpegls_decoder_select="golomb mjpeg_decoder"
2386 jpegls_encoder_select="golomb"
2387 jv_decoder_select="blockdsp"
2388 lagarith_decoder_select="huffyuvdsp"
2389 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2390 loco_decoder_select="golomb"
2391 magicyuv_decoder_select="huffyuvdsp"
2392 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2393 metasound_decoder_select="lsp mdct sinewin"
2394 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2395 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2396 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2397 mjpegb_decoder_select="mjpeg_decoder"
2398 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2399 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2400 mlp_decoder_select="mlp_parser"
2401 motionpixels_decoder_select="bswapdsp"
2402 mp1_decoder_select="mpegaudio"
2403 mp1float_decoder_select="mpegaudio"
2404 mp2_decoder_select="mpegaudio"
2405 mp2float_decoder_select="mpegaudio"
2406 mp3_decoder_select="mpegaudio"
2407 mp3adu_decoder_select="mpegaudio"
2408 mp3adufloat_decoder_select="mpegaudio"
2409 mp3float_decoder_select="mpegaudio"
2410 mp3on4_decoder_select="mpegaudio"
2411 mp3on4float_decoder_select="mpegaudio"
2412 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2413 mpc8_decoder_select="mpegaudiodsp"
2414 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2415 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2416 mpegvideo_decoder_select="mpegvideo"
2417 mpeg1video_decoder_select="mpegvideo"
2418 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2419 mpeg2video_decoder_select="mpegvideo"
2420 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2421 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2422 mpeg4_encoder_select="h263_encoder"
2423 msa1_decoder_select="mss34dsp"
2424 msmpeg4v1_decoder_select="h263_decoder"
2425 msmpeg4v2_decoder_select="h263_decoder"
2426 msmpeg4v2_encoder_select="h263_encoder"
2427 msmpeg4v3_decoder_select="h263_decoder"
2428 msmpeg4v3_encoder_select="h263_encoder"
2429 mss2_decoder_select="vc1_decoder mpegvideo"
2430 mts2_decoder_select="mss34dsp"
2431 mxpeg_decoder_select="mjpeg_decoder"
2432 nellymoser_decoder_select="mdct sinewin"
2433 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2434 nuv_decoder_select="idctdsp lzo"
2435 on2avc_decoder_select="mdct"
2436 opus_decoder_deps="swresample"
2437 opus_decoder_select="imdct15"
2438 png_decoder_select="zlib"
2439 png_encoder_select="huffyuvencdsp zlib"
2440 prores_decoder_select="blockdsp idctdsp"
2441 prores_encoder_select="fdctdsp"
2442 qcelp_decoder_select="lsp"
2443 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2444 ra_144_decoder_select="audiodsp"
2445 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2446 ralf_decoder_select="golomb"
2447 rawvideo_decoder_select="bswapdsp"
2448 rscc_decoder_select="zlib"
2449 rtjpeg_decoder_select="me_cmp"
2450 rv10_decoder_select="h263_decoder"
2451 rv10_encoder_select="h263_encoder"
2452 rv20_decoder_select="h263_decoder"
2453 rv20_encoder_select="h263_encoder"
2454 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2455 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2456 screenpresso_decoder_select="zlib"
2457 shorten_decoder_select="golomb"
2458 sipr_decoder_select="lsp"
2459 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2460 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2461 sonic_decoder_select="golomb rangecoder"
2462 sonic_encoder_select="golomb rangecoder"
2463 sonic_ls_encoder_select="golomb rangecoder"
2464 sp5x_decoder_select="mjpeg_decoder"
2465 svq1_decoder_select="hpeldsp"
2466 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2467 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2468 svq3_decoder_suggest="zlib"
2469 tak_decoder_select="audiodsp"
2470 tdsc_decoder_select="zlib mjpeg_decoder"
2471 theora_decoder_select="vp3_decoder"
2472 thp_decoder_select="mjpeg_decoder"
2473 tiff_decoder_suggest="zlib lzma"
2474 tiff_encoder_suggest="zlib"
2475 truehd_decoder_select="mlp_parser"
2476 truemotion2_decoder_select="bswapdsp"
2477 truespeech_decoder_select="bswapdsp"
2478 tscc_decoder_select="zlib"
2479 twinvq_decoder_select="mdct lsp sinewin"
2480 txd_decoder_select="texturedsp"
2481 utvideo_decoder_select="bswapdsp"
2482 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2483 vble_decoder_select="huffyuvdsp"
2484 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2485 vc1_qsv_decoder_deps="libmfx"
2486 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2487 vc1image_decoder_select="vc1_decoder"
2488 vorbis_decoder_select="mdct"
2489 vorbis_encoder_select="mdct"
2490 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2491 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2492 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2493 vp6a_decoder_select="vp6_decoder"
2494 vp6f_decoder_select="vp6_decoder"
2495 vp7_decoder_select="h264pred videodsp vp8dsp"
2496 vp8_decoder_select="h264pred videodsp vp8dsp"
2497 vp9_decoder_select="videodsp vp9_parser"
2498 webp_decoder_select="vp8_decoder exif"
2499 wmalossless_decoder_select="llauddsp"
2500 wmapro_decoder_select="mdct sinewin wma_freqs"
2501 wmav1_decoder_select="mdct sinewin wma_freqs"
2502 wmav1_encoder_select="mdct sinewin wma_freqs"
2503 wmav2_decoder_select="mdct sinewin wma_freqs"
2504 wmav2_encoder_select="mdct sinewin wma_freqs"
2505 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2506 wmv1_decoder_select="h263_decoder"
2507 wmv1_encoder_select="h263_encoder"
2508 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2509 wmv2_encoder_select="h263_encoder wmv2dsp"
2510 wmv3_decoder_select="vc1_decoder"
2511 wmv3image_decoder_select="wmv3_decoder"
2512 xma1_decoder_select="wmapro_decoder"
2513 xma2_decoder_select="wmapro_decoder"
2514 zerocodec_decoder_select="zlib"
2515 zlib_decoder_select="zlib"
2516 zlib_encoder_select="zlib"
2517 zmbv_decoder_select="zlib"
2518 zmbv_encoder_select="zlib"
2519
2520 # platform codecs
2521 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2522 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2523
2524 # hardware accelerators
2525 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2526 cuvid_deps="cuda"
2527 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2528 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2529 vaapi_deps="va_va_h"
2530 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2531 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2532 vda_deps="vda_framework pthreads"
2533 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2534 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2535 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2536 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2537 xvmc_deps="X11_extensions_XvMClib_h"
2538
2539 h263_vaapi_hwaccel_deps="vaapi"
2540 h263_vaapi_hwaccel_select="h263_decoder"
2541 h263_videotoolbox_hwaccel_deps="videotoolbox"
2542 h263_videotoolbox_hwaccel_select="h263_decoder"
2543 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2544 h264_cuvid_hwaccel_deps="cuda cuvid CUVIDH264PICPARAMS"
2545 h264_d3d11va_hwaccel_deps="d3d11va"
2546 h264_d3d11va_hwaccel_select="h264_decoder"
2547 h264_dxva2_hwaccel_deps="dxva2"
2548 h264_dxva2_hwaccel_select="h264_decoder"
2549 h264_mediacodec_decoder_deps="mediacodec"
2550 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2551 h264_mmal_decoder_deps="mmal"
2552 h264_mmal_decoder_select="mmal"
2553 h264_mmal_hwaccel_deps="mmal"
2554 h264_omx_encoder_deps="omx"
2555 h264_qsv_hwaccel_deps="libmfx"
2556 h264_vaapi_hwaccel_deps="vaapi"
2557 h264_vaapi_hwaccel_select="h264_decoder"
2558 h264_vda_decoder_deps="vda"
2559 h264_vda_decoder_select="h264_decoder"
2560 h264_vda_hwaccel_deps="vda"
2561 h264_vda_hwaccel_select="h264_decoder"
2562 h264_vda_old_hwaccel_deps="vda"
2563 h264_vda_old_hwaccel_select="h264_decoder"
2564 h264_vdpau_decoder_deps="vdpau"
2565 h264_vdpau_decoder_select="h264_decoder"
2566 h264_vdpau_hwaccel_deps="vdpau"
2567 h264_vdpau_hwaccel_select="h264_decoder"
2568 h264_videotoolbox_hwaccel_deps="videotoolbox"
2569 h264_videotoolbox_hwaccel_select="h264_decoder"
2570 hevc_cuvid_hwaccel_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2571 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2572 hevc_d3d11va_hwaccel_select="hevc_decoder"
2573 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2574 hevc_dxva2_hwaccel_select="hevc_decoder"
2575 hevc_qsv_hwaccel_deps="libmfx"
2576 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2577 hevc_vaapi_hwaccel_select="hevc_decoder"
2578 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2579 hevc_vdpau_hwaccel_select="hevc_decoder"
2580 mpeg_vdpau_decoder_deps="vdpau"
2581 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2582 mpeg_xvmc_hwaccel_deps="xvmc"
2583 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2584 mpeg1_vdpau_decoder_deps="vdpau"
2585 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2586 mpeg1_vdpau_hwaccel_deps="vdpau"
2587 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2588 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2589 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2590 mpeg1_xvmc_hwaccel_deps="xvmc"
2591 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2592 mpeg2_crystalhd_decoder_select="crystalhd"
2593 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2594 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2595 mpeg2_dxva2_hwaccel_deps="dxva2"
2596 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2597 mpeg2_mmal_decoder_deps="mmal"
2598 mpeg2_mmal_decoder_select="mmal"
2599 mpeg2_mmal_hwaccel_deps="mmal"
2600 mpeg2_qsv_hwaccel_deps="libmfx"
2601 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2602 mpeg2_vaapi_hwaccel_deps="vaapi"
2603 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2604 mpeg2_vdpau_hwaccel_deps="vdpau"
2605 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2606 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2607 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2608 mpeg2_xvmc_hwaccel_deps="xvmc"
2609 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2610 mpeg4_crystalhd_decoder_select="crystalhd"
2611 mpeg4_mmal_decoder_deps="mmal"
2612 mpeg4_mmal_decoder_select="mmal"
2613 mpeg4_mmal_hwaccel_deps="mmal"
2614 mpeg4_omx_encoder_deps="omx"
2615 mpeg4_vaapi_hwaccel_deps="vaapi"
2616 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2617 mpeg4_vdpau_decoder_deps="vdpau"
2618 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2619 mpeg4_vdpau_hwaccel_deps="vdpau"
2620 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2621 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2622 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2623 msmpeg4_crystalhd_decoder_select="crystalhd"
2624 vc1_crystalhd_decoder_select="crystalhd"
2625 vc1_cuvid_hwaccel_deps="cuda cuvid CUVIDVC1PICPARAMS"
2626 vc1_d3d11va_hwaccel_deps="d3d11va"
2627 vc1_d3d11va_hwaccel_select="vc1_decoder"
2628 vc1_dxva2_hwaccel_deps="dxva2"
2629 vc1_dxva2_hwaccel_select="vc1_decoder"
2630 vc1_mmal_decoder_deps="mmal"
2631 vc1_mmal_decoder_select="mmal"
2632 vc1_mmal_hwaccel_deps="mmal"
2633 vc1_qsv_hwaccel_deps="libmfx"
2634 vc1_qsv_hwaccel_select="qsvdec_vc1"
2635 vc1_vaapi_hwaccel_deps="vaapi"
2636 vc1_vaapi_hwaccel_select="vc1_decoder"
2637 vc1_vdpau_decoder_deps="vdpau"
2638 vc1_vdpau_decoder_select="vc1_decoder"
2639 vc1_vdpau_hwaccel_deps="vdpau"
2640 vc1_vdpau_hwaccel_select="vc1_decoder"
2641 vp8_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2642 vp9_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2643 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2644 vp9_d3d11va_hwaccel_select="vp9_decoder"
2645 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2646 vp9_dxva2_hwaccel_select="vp9_decoder"
2647 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2648 vp9_vaapi_hwaccel_select="vp9_decoder"
2649 wmv3_crystalhd_decoder_select="crystalhd"
2650 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2651 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2652 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2653 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2654 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2655
2656 # hardware-accelerated codecs
2657 omx_deps="dlopen pthreads"
2658 omx_extralibs='$ldl'
2659 qsvdec_select="qsv"
2660 qsvenc_select="qsv"
2661 vaapi_encode_deps="vaapi"
2662
2663 hwupload_cuda_filter_deps="cuda"
2664 scale_npp_filter_deps="cuda libnpp"
2665
2666 nvenc_encoder_deps="nvenc"
2667 h264_cuvid_decoder_deps="cuda cuvid CUVIDH264PICPARAMS"
2668 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2669 h264_qsv_decoder_deps="libmfx"
2670 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2671 h264_qsv_encoder_deps="libmfx"
2672 h264_qsv_encoder_select="qsvenc"
2673 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2674 h264_vaapi_encoder_select="vaapi_encode golomb"
2675
2676 hevc_cuvid_decoder_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2677 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2678 hevc_qsv_decoder_deps="libmfx"
2679 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2680 hevc_qsv_encoder_deps="libmfx"
2681 hevc_qsv_encoder_select="qsvenc"
2682 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2683 hevc_vaapi_encoder_select="vaapi_encode golomb"
2684 mpeg2_qsv_decoder_deps="libmfx"
2685 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2686 mpeg2_qsv_encoder_deps="libmfx"
2687 mpeg2_qsv_encoder_select="qsvenc"
2688 nvenc_h264_encoder_deps="nvenc"
2689 nvenc_hevc_encoder_deps="nvenc"
2690
2691 vc1_cuvid_decoder_deps="cuda cuvid CUVIDVC1PICPARAMS"
2692 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2693 vp8_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2694 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2695 vp9_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2696 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2697
2698 # parsers
2699 h264_parser_select="golomb h264dsp"
2700 hevc_parser_select="golomb"
2701 mpegvideo_parser_select="mpegvideo"
2702 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2703 vc1_parser_select="vc1dsp"
2704
2705 # bitstream_filters
2706 mjpeg2jpeg_bsf_select="jpegtables"
2707
2708 # external libraries
2709 aac_at_decoder_deps="audiotoolbox"
2710 ac3_at_decoder_deps="audiotoolbox"
2711 ac3_at_decoder_select="ac3_parser"
2712 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2713 alac_at_decoder_deps="audiotoolbox"
2714 amr_nb_at_decoder_deps="audiotoolbox"
2715 eac3_at_decoder_deps="audiotoolbox"
2716 eac3_at_decoder_select="ac3_parser"
2717 gsm_ms_at_decoder_deps="audiotoolbox"
2718 ilbc_at_decoder_deps="audiotoolbox"
2719 mp1_at_decoder_deps="audiotoolbox"
2720 mp2_at_decoder_deps="audiotoolbox"
2721 mp3_at_decoder_deps="audiotoolbox"
2722 pcm_alaw_at_decoder_deps="audiotoolbox"
2723 pcm_mulaw_at_decoder_deps="audiotoolbox"
2724 qdmc_at_decoder_deps="audiotoolbox"
2725 qdm2_at_decoder_deps="audiotoolbox"
2726 aac_at_encoder_deps="audiotoolbox"
2727 aac_at_encoder_select="audio_frame_queue"
2728 alac_at_encoder_deps="audiotoolbox"
2729 alac_at_encoder_select="audio_frame_queue"
2730 ilbc_at_encoder_deps="audiotoolbox"
2731 ilbc_at_encoder_select="audio_frame_queue"
2732 pcm_alaw_at_encoder_deps="audiotoolbox"
2733 pcm_alaw_at_encoder_select="audio_frame_queue"
2734 pcm_mulaw_at_encoder_deps="audiotoolbox"
2735 pcm_mulaw_at_encoder_select="audio_frame_queue"
2736 chromaprint_muxer_deps="chromaprint"
2737 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2738 libcelt_decoder_deps="libcelt"
2739 libfaac_encoder_deps="libfaac"
2740 libfaac_encoder_select="audio_frame_queue"
2741 libfdk_aac_decoder_deps="libfdk_aac"
2742 libfdk_aac_encoder_deps="libfdk_aac"
2743 libfdk_aac_encoder_select="audio_frame_queue"
2744 libgme_demuxer_deps="libgme"
2745 libgsm_decoder_deps="libgsm"
2746 libgsm_encoder_deps="libgsm"
2747 libgsm_ms_decoder_deps="libgsm"
2748 libgsm_ms_encoder_deps="libgsm"
2749 libilbc_decoder_deps="libilbc"
2750 libilbc_encoder_deps="libilbc"
2751 libkvazaar_encoder_deps="libkvazaar"
2752 libmodplug_demuxer_deps="libmodplug"
2753 libmp3lame_encoder_deps="libmp3lame"
2754 libmp3lame_encoder_select="audio_frame_queue"
2755 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2756 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2757 libopencore_amrnb_encoder_select="audio_frame_queue"
2758 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2759 libopenh264_encoder_deps="libopenh264"
2760 libopenjpeg_decoder_deps="libopenjpeg"
2761 libopenjpeg_encoder_deps="libopenjpeg"
2762 libopus_decoder_deps="libopus"
2763 libopus_encoder_deps="libopus"
2764 libopus_encoder_select="audio_frame_queue"
2765 libschroedinger_decoder_deps="libschroedinger"
2766 libschroedinger_encoder_deps="libschroedinger"
2767 libshine_encoder_deps="libshine"
2768 libshine_encoder_select="audio_frame_queue"
2769 libspeex_decoder_deps="libspeex"
2770 libspeex_encoder_deps="libspeex"
2771 libspeex_encoder_select="audio_frame_queue"
2772 libtheora_encoder_deps="libtheora"
2773 libtwolame_encoder_deps="libtwolame"
2774 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2775 libvorbis_decoder_deps="libvorbis"
2776 libvorbis_encoder_deps="libvorbis"
2777 libvorbis_encoder_select="audio_frame_queue"
2778 libvpx_vp8_decoder_deps="libvpx"
2779 libvpx_vp8_encoder_deps="libvpx"
2780 libvpx_vp9_decoder_deps="libvpx"
2781 libvpx_vp9_encoder_deps="libvpx"
2782 libwavpack_encoder_deps="libwavpack"
2783 libwebp_encoder_deps="libwebp"
2784 libwebp_anim_encoder_deps="libwebp"
2785 libx262_encoder_deps="libx262"
2786 libx264_encoder_deps="libx264"
2787 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2788 libx264rgb_encoder_select="libx264_encoder"
2789 libx265_encoder_deps="libx265"
2790 libxavs_encoder_deps="libxavs"
2791 libxvid_encoder_deps="libxvid"
2792 libzvbi_teletext_decoder_deps="libzvbi"
2793 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2794 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2795 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2796 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2797 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2798
2799 # demuxers / muxers
2800 ac3_demuxer_select="ac3_parser"
2801 asf_demuxer_select="riffdec"
2802 asf_o_demuxer_select="riffdec"
2803 asf_muxer_select="riffenc"
2804 asf_stream_muxer_select="asf_muxer"
2805 avi_demuxer_select="iso_media riffdec exif"
2806 avi_muxer_select="riffenc"
2807 avisynth_demuxer_deps="avisynth"
2808 avisynth_demuxer_select="riffdec"
2809 caf_demuxer_select="iso_media riffdec"
2810 dash_muxer_select="mp4_muxer"
2811 dirac_demuxer_select="dirac_parser"
2812 dts_demuxer_select="dca_parser"
2813 dtshd_demuxer_select="dca_parser"
2814 dv_demuxer_select="dvprofile"
2815 dv_muxer_select="dvprofile"
2816 dxa_demuxer_select="riffdec"
2817 eac3_demuxer_select="ac3_parser"
2818 f4v_muxer_select="mov_muxer"
2819 flac_demuxer_select="flac_parser"
2820 hds_muxer_select="flv_muxer"
2821 hls_muxer_select="mpegts_muxer"
2822 image2_alias_pix_demuxer_select="image2_demuxer"
2823 image2_brender_pix_demuxer_select="image2_demuxer"
2824 ipod_muxer_select="mov_muxer"
2825 ismv_muxer_select="mov_muxer"
2826 libnut_demuxer_deps="libnut"
2827 libnut_muxer_deps="libnut"
2828 matroska_audio_muxer_select="matroska_muxer"
2829 matroska_demuxer_select="iso_media riffdec"
2830 matroska_demuxer_suggest="bzlib lzo zlib"
2831 matroska_muxer_select="iso_media riffenc"
2832 mmf_muxer_select="riffenc"
2833 mov_demuxer_select="iso_media riffdec"
2834 mov_demuxer_suggest="zlib"
2835 mov_muxer_select="iso_media riffenc rtpenc_chain"
2836 mp3_demuxer_select="mpegaudio_parser"
2837 mp4_muxer_select="mov_muxer"
2838 mpegts_demuxer_select="iso_media"
2839 mpegts_muxer_select="adts_muxer latm_muxer"
2840 mpegtsraw_demuxer_select="mpegts_demuxer"
2841 mxf_d10_muxer_select="mxf_muxer"
2842 mxf_opatom_muxer_select="mxf_muxer"
2843 nut_muxer_select="riffenc"
2844 nuv_demuxer_select="riffdec"
2845 oga_muxer_select="ogg_muxer"
2846 ogg_demuxer_select="dirac_parse"
2847 opus_muxer_select="ogg_muxer"
2848 psp_muxer_select="mov_muxer"
2849 rtp_demuxer_select="sdp_demuxer"
2850 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2851 rtsp_demuxer_select="http_protocol rtpdec"
2852 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2853 sap_demuxer_select="sdp_demuxer"
2854 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2855 sdp_demuxer_select="rtpdec"
2856 smoothstreaming_muxer_select="ismv_muxer"
2857 spdif_muxer_select="aac_parser"
2858 spx_muxer_select="ogg_muxer"
2859 swf_demuxer_suggest="zlib"
2860 tak_demuxer_select="tak_parser"
2861 tg2_muxer_select="mov_muxer"
2862 tgp_muxer_select="mov_muxer"
2863 vobsub_demuxer_select="mpegps_demuxer"
2864 w64_demuxer_select="wav_demuxer"
2865 w64_muxer_select="wav_muxer"
2866 wav_demuxer_select="riffdec"
2867 wav_muxer_select="riffenc"
2868 webm_muxer_select="iso_media riffenc"
2869 webm_dash_manifest_demuxer_select="matroska_demuxer"
2870 wtv_demuxer_select="mpegts_demuxer riffdec"
2871 wtv_muxer_select="mpegts_muxer riffenc"
2872 xmv_demuxer_select="riffdec"
2873 xwma_demuxer_select="riffdec"
2874
2875 # indevs / outdevs
2876 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2877 alsa_outdev_deps="alsa_asoundlib_h"
2878 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2879 avfoundation_indev_select="avfoundation"
2880 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2881 caca_outdev_deps="libcaca"
2882 decklink_indev_deps="decklink pthreads"
2883 decklink_indev_extralibs="-lstdc++"
2884 decklink_outdev_deps="decklink pthreads"
2885 decklink_outdev_extralibs="-lstdc++"
2886 dshow_indev_deps="IBaseFilter"
2887 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2888 dv1394_indev_deps="dv1394"
2889 dv1394_indev_select="dv_demuxer"
2890 fbdev_indev_deps="linux_fb_h"
2891 fbdev_outdev_deps="linux_fb_h"
2892 gdigrab_indev_deps="CreateDIBSection"
2893 gdigrab_indev_extralibs="-lgdi32"
2894 gdigrab_indev_select="bmp_decoder"
2895 iec61883_indev_deps="libiec61883"
2896 jack_indev_deps="jack_jack_h"
2897 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2898 lavfi_indev_deps="avfilter"
2899 libcdio_indev_deps="libcdio"
2900 libdc1394_indev_deps="libdc1394"
2901 libv4l2_indev_deps="libv4l2"
2902 openal_indev_deps="openal"
2903 opengl_outdev_deps="opengl"
2904 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2905 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2906 pulse_indev_deps="libpulse"
2907 pulse_outdev_deps="libpulse"
2908 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2909 qtkit_indev_select="qtkit"
2910 sdl_outdev_deps="sdl"
2911 sndio_indev_deps="sndio_h"
2912 sndio_outdev_deps="sndio_h"
2913 v4l_indev_deps="linux_videodev_h"
2914 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2915 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2916 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2917 vfwcap_indev_extralibs="-lavicap32"
2918 x11grab_indev_deps="x11grab"
2919 x11grab_xcb_indev_deps="libxcb"
2920 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2921 xv_outdev_extralibs="-lXv -lX11 -lXext"
2922
2923 # protocols
2924 async_protocol_deps="threads"
2925 bluray_protocol_deps="libbluray"
2926 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2927 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2928 ffrtmpcrypt_protocol_select="tcp_protocol"
2929 ffrtmphttp_protocol_deps="!librtmp_protocol"
2930 ffrtmphttp_protocol_select="http_protocol"
2931 ftp_protocol_select="tcp_protocol"
2932 gopher_protocol_select="network"
2933 http_protocol_select="tcp_protocol"
2934 httpproxy_protocol_select="tcp_protocol"
2935 https_protocol_select="tls_protocol"
2936 icecast_protocol_select="http_protocol"
2937 librtmp_protocol_deps="librtmp"
2938 librtmpe_protocol_deps="librtmp"
2939 librtmps_protocol_deps="librtmp"
2940 librtmpt_protocol_deps="librtmp"
2941 librtmpte_protocol_deps="librtmp"
2942 libsmbclient_protocol_deps="libsmbclient gplv3"
2943 libssh_protocol_deps="libssh"
2944 mmsh_protocol_select="http_protocol"
2945 mmst_protocol_select="network"
2946 rtmp_protocol_deps="!librtmp_protocol"
2947 rtmp_protocol_select="tcp_protocol"
2948 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2949 rtmps_protocol_deps="!librtmp_protocol"
2950 rtmps_protocol_select="tls_protocol"
2951 rtmpt_protocol_select="ffrtmphttp_protocol"
2952 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2953 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2954 rtp_protocol_select="udp_protocol"
2955 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2956 sctp_protocol_select="network"
2957 srtp_protocol_select="rtp_protocol srtp"
2958 tcp_protocol_select="network"
2959 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2960 tls_gnutls_protocol_select="tcp_protocol"
2961 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2962 tls_openssl_protocol_select="tcp_protocol"
2963 tls_schannel_protocol_deps="schannel"
2964 tls_schannel_protocol_select="tcp_protocol"
2965 tls_securetransport_protocol_deps="securetransport"
2966 tls_securetransport_protocol_select="tcp_protocol"
2967 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2968 udp_protocol_select="network"
2969 udplite_protocol_select="network"
2970 unix_protocol_deps="sys_un_h"
2971 unix_protocol_select="network"
2972
2973 # filters
2974 afftfilt_filter_deps="avcodec"
2975 afftfilt_filter_select="fft"
2976 amovie_filter_deps="avcodec avformat"
2977 aresample_filter_deps="swresample"
2978 ass_filter_deps="libass"
2979 asyncts_filter_deps="avresample"
2980 atempo_filter_deps="avcodec"
2981 atempo_filter_select="rdft"
2982 azmq_filter_deps="libzmq"
2983 blackframe_filter_deps="gpl"
2984 boxblur_filter_deps="gpl"
2985 bs2b_filter_deps="libbs2b"
2986 colormatrix_filter_deps="gpl"
2987 cover_rect_filter_deps="avcodec avformat gpl"
2988 cropdetect_filter_deps="gpl"
2989 delogo_filter_deps="gpl"
2990 deshake_filter_select="pixelutils"
2991 drawtext_filter_deps="libfreetype"
2992 ebur128_filter_deps="gpl"
2993 eq_filter_deps="gpl"
2994 fftfilt_filter_deps="avcodec"
2995 fftfilt_filter_select="rdft"
2996 find_rect_filter_deps="avcodec avformat gpl"
2997 firequalizer_filter_deps="avcodec"
2998 firequalizer_filter_select="rdft"
2999 flite_filter_deps="libflite"
3000 framerate_filter_select="pixelutils"
3001 frei0r_filter_deps="frei0r dlopen"
3002 frei0r_src_filter_deps="frei0r dlopen"
3003 fspp_filter_deps="gpl"
3004 geq_filter_deps="gpl"
3005 histeq_filter_deps="gpl"
3006 hqdn3d_filter_deps="gpl"
3007 interlace_filter_deps="gpl"
3008 kerndeint_filter_deps="gpl"
3009 ladspa_filter_deps="ladspa dlopen"
3010 loudnorm_filter_deps="libebur128"
3011 mcdeint_filter_deps="avcodec gpl"
3012 movie_filter_deps="avcodec avformat"
3013 mpdecimate_filter_deps="gpl"
3014 mpdecimate_filter_select="pixelutils"
3015 mptestsrc_filter_deps="gpl"
3016 negate_filter_deps="lut_filter"
3017 nnedi_filter_deps="gpl"
3018 ocr_filter_deps="libtesseract"
3019 ocv_filter_deps="libopencv"
3020 owdenoise_filter_deps="gpl"
3021 pan_filter_deps="swresample"
3022 perspective_filter_deps="gpl"
3023 phase_filter_deps="gpl"
3024 pp7_filter_deps="gpl"
3025 pp_filter_deps="gpl postproc"
3026 pullup_filter_deps="gpl"
3027 removelogo_filter_deps="avcodec avformat swscale"
3028 repeatfields_filter_deps="gpl"
3029 resample_filter_deps="avresample"
3030 rubberband_filter_deps="librubberband"
3031 sab_filter_deps="gpl swscale"
3032 scale2ref_filter_deps="swscale"
3033 scale_filter_deps="swscale"
3034 select_filter_select="pixelutils"
3035 showcqt_filter_deps="avcodec avformat swscale"
3036 showcqt_filter_select="fft"
3037 showfreqs_filter_deps="avcodec"
3038 showfreqs_filter_select="fft"
3039 showspectrum_filter_deps="avcodec"
3040 showspectrum_filter_select="fft"
3041 showspectrumpic_filter_deps="avcodec"
3042 showspectrumpic_filter_select="fft"
3043 smartblur_filter_deps="gpl swscale"
3044 sofalizer_filter_deps="netcdf avcodec"
3045 sofalizer_filter_select="fft"
3046 spectrumsynth_filter_deps="avcodec"
3047 spectrumsynth_filter_select="fft"
3048 spp_filter_deps="gpl avcodec"
3049 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3050 stereo3d_filter_deps="gpl"
3051 subtitles_filter_deps="avformat avcodec libass"
3052 super2xsai_filter_deps="gpl"
3053 pixfmts_super2xsai_test_deps="super2xsai_filter"
3054 tinterlace_filter_deps="gpl"
3055 tinterlace_merge_test_deps="tinterlace_filter"
3056 tinterlace_pad_test_deps="tinterlace_filter"
3057 uspp_filter_deps="gpl avcodec"
3058 vidstabdetect_filter_deps="libvidstab"
3059 vidstabtransform_filter_deps="libvidstab"
3060 zmq_filter_deps="libzmq"
3061 zoompan_filter_deps="swscale"
3062 zscale_filter_deps="libzimg"
3063 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3064
3065 # examples
3066 avcodec_example_deps="avcodec avutil"
3067 avio_dir_cmd="avformat avutil"
3068 avio_reading="avformat avcodec avutil"
3069 decoding_encoding_example_deps="avcodec avformat avutil"
3070 demuxing_decoding_example_deps="avcodec avformat avutil"
3071 extract_mvs_example_deps="avcodec avformat avutil"
3072 filter_audio_example_deps="avfilter avutil"
3073 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3074 filtering_video_example_deps="avfilter avcodec avformat avutil"
3075 metadata_example_deps="avformat avutil"
3076 muxing_example_deps="avcodec avformat avutil swscale"
3077 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3078 remuxing_example_deps="avcodec avformat avutil"
3079 resampling_audio_example_deps="avutil swresample"
3080 scaling_video_example_deps="avutil swscale"
3081 transcode_aac_example_deps="avcodec avformat swresample"
3082 transcoding_example_deps="avfilter avcodec avformat avutil"
3083
3084 # libraries, in linking order
3085 avcodec_deps="avutil"
3086 avdevice_deps="avformat avcodec avutil"
3087 avfilter_deps="avutil"
3088 avformat_deps="avcodec avutil"
3089 avresample_deps="avutil"
3090 postproc_deps="avutil gpl"
3091 swresample_deps="avutil"
3092 swscale_deps="avutil"
3093
3094 # programs
3095 ffmpeg_deps="avcodec avfilter avformat swresample"
3096 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3097                null_filter
3098                setpts_filter trim_filter"
3099 ffplay_deps="avcodec avformat swscale swresample sdl"
3100 ffplay_libs='$sdl_libs'
3101 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3102 ffprobe_deps="avcodec avformat"
3103 ffserver_deps="avformat fork sarestart"
3104 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3105
3106 # documentation
3107 podpages_deps="perl"
3108 manpages_deps="perl pod2man"
3109 htmlpages_deps="perl"
3110 htmlpages_deps_any="makeinfo_html texi2html"
3111 txtpages_deps="perl makeinfo"
3112 doc_deps_any="manpages htmlpages podpages txtpages"
3113
3114 # default parameters
3115
3116 logfile="config.log"
3117
3118 # installation paths
3119 prefix_default="/usr/local"
3120 bindir_default='${prefix}/bin'
3121 datadir_default='${prefix}/share/ffmpeg'
3122 docdir_default='${prefix}/share/doc/ffmpeg'
3123 incdir_default='${prefix}/include'
3124 libdir_default='${prefix}/lib'
3125 mandir_default='${prefix}/share/man'
3126
3127 # toolchain
3128 ar_default="ar"
3129 cc_default="gcc"
3130 cxx_default="g++"
3131 host_cc_default="gcc"
3132 cp_f="cp -f"
3133 doxygen_default="doxygen"
3134 install="install"
3135 ln_s_default="ln -s -f"
3136 nm_default="nm -g"
3137 objformat="elf"
3138 pkg_config_default=pkg-config
3139 ranlib_default="ranlib"
3140 strip_default="strip"
3141 yasmexe_default="yasm"
3142 windres_default="windres"
3143
3144 # OS
3145 target_os_default=$(tolower $(uname -s))
3146 host_os=$target_os_default
3147
3148 # machine
3149 if test "$target_os_default" = aix; then
3150     arch_default=$(uname -p)
3151     strip_default="strip -X32_64"
3152 else
3153     arch_default=$(uname -m)
3154 fi
3155 cpu="generic"
3156 intrinsics="none"
3157
3158 # configurable options
3159 enable $PROGRAM_LIST
3160 enable $DOCUMENT_LIST
3161 enable $EXAMPLE_LIST
3162 enable $(filter_out avresample $LIBRARY_LIST)
3163 enable stripping
3164
3165 enable asm
3166 enable debug
3167 enable doc
3168 enable faan faandct faanidct
3169 enable optimizations
3170 enable runtime_cpudetect
3171 enable safe_bitstream_reader
3172 enable static
3173 enable swscale_alpha
3174 enable valgrind_backtrace
3175
3176 sws_max_filter_size_default=256
3177 set_default sws_max_filter_size
3178
3179 # Enable platform codecs by default.
3180 enable audiotoolbox
3181
3182 # Enable hwaccels by default.
3183 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3184 enable xlib
3185
3186 enable vda_framework videotoolbox videotoolbox_encoder
3187
3188 # build settings
3189 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3190 LIBPREF="lib"
3191 LIBSUF=".a"
3192 FULLNAME='$(NAME)$(BUILDSUF)'
3193 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3194 SLIBPREF="lib"
3195 SLIBSUF=".so"
3196 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3197 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3198 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3199 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3200 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3201 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3202
3203 asflags_filter=echo
3204 cflags_filter=echo
3205 ldflags_filter=echo
3206
3207 AS_C='-c'
3208 AS_O='-o $@'
3209 CC_C='-c'
3210 CC_E='-E -o $@'
3211 CC_O='-o $@'
3212 CXX_C='-c'
3213 CXX_O='-o $@'
3214 OBJCC_C='-c'
3215 OBJCC_E='-E -o $@'
3216 OBJCC_O='-o $@'
3217 LD_O='-o $@'
3218 LD_LIB='-l%'
3219 LD_PATH='-L'
3220 HOSTCC_C='-c'
3221 HOSTCC_E='-E -o $@'
3222 HOSTCC_O='-o $@'
3223 HOSTLD_O='-o $@'
3224
3225 host_libs='-lm'
3226 host_cflags_filter=echo
3227 host_ldflags_filter=echo
3228
3229 target_path='$(CURDIR)'
3230
3231 # since the object filename is not given with the -MM flag, the compiler
3232 # is only able to print the basename, and we must add the path ourselves
3233 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3234 DEPFLAGS='-MM'
3235
3236 # find source path
3237 if test -f configure; then
3238     source_path=.
3239 else
3240     source_path=$(cd $(dirname "$0"); pwd)
3241     case "$source_path" in
3242         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3243     esac
3244     test -e "$source_path/config.h" &&
3245         die "Out of tree builds are impossible with config.h in source dir."
3246 fi
3247
3248 for v in "$@"; do
3249     r=${v#*=}
3250     l=${v%"$r"}
3251     r=$(sh_quote "$r")
3252     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3253 done
3254
3255 find_things(){
3256     thing=$1
3257     pattern=$2
3258     file=$source_path/$3
3259     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3260 }
3261
3262 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3263 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3264 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3265 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3266 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3267 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3268 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3269 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3270 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3271
3272 find_things_extern(){
3273     thing=$1
3274     pattern=$2
3275     file=$source_path/$3
3276     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3277 }
3278
3279 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3280 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3281
3282 ALL_COMPONENTS="
3283     $BSF_LIST
3284     $DECODER_LIST
3285     $DEMUXER_LIST
3286     $ENCODER_LIST
3287     $FILTER_LIST
3288     $HWACCEL_LIST
3289     $INDEV_LIST
3290     $MUXER_LIST
3291     $OUTDEV_LIST
3292     $PARSER_LIST
3293     $PROTOCOL_LIST
3294 "
3295
3296 for n in $COMPONENT_LIST; do
3297     v=$(toupper ${n%s})_LIST
3298     eval enable \$$v
3299     eval ${n}_if_any="\$$v"
3300 done
3301
3302 enable $ARCH_EXT_LIST
3303
3304 die_unknown(){
3305     echo "Unknown option \"$1\"."
3306     echo "See $0 --help for available options."
3307     exit 1
3308 }
3309
3310 print_in_columns() {
3311     cols=$(expr $ncols / 24)
3312     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3313 }
3314
3315 show_list() {
3316     suffix=_$1
3317     shift
3318     echo $* | sed s/$suffix//g | print_in_columns
3319     exit 0
3320 }
3321
3322 rand_list(){
3323     IFS=', '
3324     set -- $*
3325     unset IFS
3326     for thing; do
3327         comp=${thing%:*}
3328         prob=${thing#$comp}
3329         prob=${prob#:}
3330         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3331         echo "prob ${prob:-0.5}"
3332         printf '%s\n' $comp
3333     done
3334 }
3335
3336 do_random(){
3337     action=$1
3338     shift
3339     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3340     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3341 }
3342
3343 for opt do
3344     optval="${opt#*=}"
3345     case "$opt" in
3346         --extra-ldflags=*)
3347             add_ldflags $optval
3348         ;;
3349         --extra-ldexeflags=*)
3350             add_ldexeflags $optval
3351         ;;
3352         --extra-ldlibflags=*)
3353             add_ldlibflags $optval
3354         ;;
3355         --extra-libs=*)
3356             add_extralibs $optval
3357         ;;
3358         --disable-devices)
3359             disable $INDEV_LIST $OUTDEV_LIST
3360         ;;
3361         --enable-debug=*)
3362             debuglevel="$optval"
3363         ;;
3364         --disable-programs)
3365             disable $PROGRAM_LIST
3366         ;;
3367         --disable-everything)
3368             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3369         ;;
3370         --disable-all)
3371             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3372             disable $LIBRARY_LIST $PROGRAM_LIST doc
3373             enable avutil
3374         ;;
3375         --enable-random|--disable-random)
3376             action=${opt%%-random}
3377             do_random ${action#--} $COMPONENT_LIST
3378         ;;
3379         --enable-random=*|--disable-random=*)
3380             action=${opt%%-random=*}
3381             do_random ${action#--} $optval
3382         ;;
3383         --enable-*=*|--disable-*=*)
3384             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3385             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3386             eval list=\$$(toupper $thing)_LIST
3387             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3388             list=$(filter "$name" $list)
3389             [ "$list" = "" ] && warn "Option $opt did not match anything"
3390             $action $list
3391         ;;
3392         --enable-?*|--disable-?*)
3393             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3394             if is_in $option $COMPONENT_LIST; then
3395                 test $action = disable && action=unset
3396                 eval $action \$$(toupper ${option%s})_LIST
3397             elif is_in $option $CMDLINE_SELECT; then
3398                 $action $option
3399             else
3400                 die_unknown $opt
3401             fi
3402         ;;
3403         --list-*)
3404             NAME="${opt#--list-}"
3405             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3406             NAME=${NAME%s}
3407             eval show_list $NAME \$$(toupper $NAME)_LIST
3408         ;;
3409         --help|-h) show_help
3410         ;;
3411         --fatal-warnings) enable fatal_warnings
3412         ;;
3413         *)
3414             optname="${opt%%=*}"
3415             optname="${optname#--}"
3416             optname=$(echo "$optname" | sed 's/-/_/g')
3417             if is_in $optname $CMDLINE_SET; then
3418                 eval $optname='$optval'
3419             elif is_in $optname $CMDLINE_APPEND; then
3420                 append $optname "$optval"
3421             else
3422                 die_unknown $opt
3423             fi
3424         ;;
3425     esac
3426 done
3427
3428 for e in $env; do
3429     eval "export $e"
3430 done
3431
3432 disabled logging && logfile=/dev/null
3433
3434 # Disable all the library-specific components if the library itself
3435 # is disabled, see AVCODEC_LIST and following _LIST variables.
3436
3437 disable_components(){
3438     disabled ${1} && disable $(
3439         eval components="\$$(toupper ${1})_COMPONENTS"
3440         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3441     )
3442 }
3443
3444 map 'disable_components $v' $LIBRARY_LIST
3445
3446 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3447 set >> $logfile
3448
3449 test -n "$valgrind" && toolchain="valgrind-memcheck"
3450
3451 case "$toolchain" in
3452     *-asan)
3453         cc_default="${toolchain%-asan}"
3454         add_cflags  -fsanitize=address
3455         add_ldflags -fsanitize=address
3456     ;;
3457     *-msan)
3458         cc_default="${toolchain%-msan}"
3459         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3460         add_ldflags -fsanitize=memory
3461     ;;
3462     *-tsan)
3463         cc_default="${toolchain%-tsan}"
3464         add_cflags  -fsanitize=thread -pie
3465         add_ldflags -fsanitize=thread -pie
3466         case "$toolchain" in
3467             gcc-tsan)
3468                 add_cflags  -fPIC
3469                 add_ldflags -fPIC
3470                 ;;
3471         esac
3472     ;;
3473     *-usan)
3474         cc_default="${toolchain%-usan}"
3475         add_cflags  -fsanitize=undefined
3476         add_ldflags -fsanitize=undefined
3477     ;;
3478     valgrind-*)
3479         target_exec_default="valgrind"
3480         case "$toolchain" in
3481             valgrind-massif)
3482                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3483                 ;;
3484             valgrind-memcheck)
3485                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3486                 ;;
3487         esac
3488     ;;
3489     msvc)
3490         # Check whether the current MSVC version needs the C99 converter.
3491         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3492         # support enough of C99 to build ffmpeg. Default to the new
3493         # behaviour if the regexp was unable to match anything, since this
3494         # successfully parses the version number of existing supported
3495         # versions that require the converter (MSVC 2010 and 2012).
3496         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3497         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3498             cc_default="cl"
3499         else
3500             cc_default="c99wrap cl"
3501         fi
3502         ld_default="$source_path/compat/windows/mslink"
3503         nm_default="dumpbin -symbols"
3504         ar_default="lib"
3505         case "$arch" in
3506         arm*)
3507             as_default="armasm"
3508             ;;
3509         esac
3510         target_os_default="win32"
3511         # Use a relative path for TMPDIR. This makes sure all the
3512         # ffconf temp files are written with a relative path, avoiding
3513         # issues with msys/win32 path conversion for MSVC parameters
3514         # such as -Fo<file> or -out:<file>.
3515         TMPDIR=.
3516     ;;
3517     icl)
3518         cc_default="icl"
3519         ld_default="xilink"
3520         nm_default="dumpbin -symbols"
3521         ar_default="xilib"
3522         target_os_default="win32"
3523         TMPDIR=.
3524     ;;
3525     gcov)
3526         add_cflags  -fprofile-arcs -ftest-coverage
3527         add_ldflags -fprofile-arcs -ftest-coverage
3528     ;;
3529     llvm-cov)
3530         add_cflags -fprofile-arcs -ftest-coverage
3531         add_ldflags --coverage
3532     ;;
3533     hardened)
3534         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3535         add_cflags   -fno-strict-overflow -fstack-protector-all
3536         add_ldflags  -Wl,-z,relro -Wl,-z,now
3537     ;;
3538     ?*)
3539         die "Unknown toolchain $toolchain"
3540     ;;
3541 esac
3542
3543 test -n "$cross_prefix" && enable cross_compile
3544
3545 if enabled cross_compile; then
3546     test -n "$arch" && test -n "$target_os" ||
3547         die "Must specify target arch and OS when cross-compiling"
3548 fi
3549
3550 ar_default="${cross_prefix}${ar_default}"
3551 cc_default="${cross_prefix}${cc_default}"
3552 cxx_default="${cross_prefix}${cxx_default}"
3553 nm_default="${cross_prefix}${nm_default}"
3554 pkg_config_default="${cross_prefix}${pkg_config_default}"
3555 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3556     ranlib_default="${cross_prefix}${ranlib_default} -D"
3557 else
3558     ranlib_default="${cross_prefix}${ranlib_default}"
3559 fi
3560 strip_default="${cross_prefix}${strip_default}"
3561 windres_default="${cross_prefix}${windres_default}"
3562
3563 sysinclude_default="${sysroot}/usr/include"
3564
3565 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3566     target_exec target_os yasmexe
3567 enabled cross_compile || host_cc_default=$cc
3568 set_default host_cc
3569
3570 pkg_config_fail_message=""
3571 if ! $pkg_config --version >/dev/null 2>&1; then
3572     warn "$pkg_config not found, library detection may fail."
3573     pkg_config=false
3574 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3575     pkg_config_fail_message="
3576 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3577 fi
3578
3579 if test $doxygen != $doxygen_default && \
3580   ! $doxygen --version >/dev/null 2>&1; then
3581     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3582 fi
3583
3584 exesuf() {
3585     case $1 in
3586         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3587     esac
3588 }
3589
3590 EXESUF=$(exesuf $target_os)
3591 HOSTEXESUF=$(exesuf $host_os)
3592
3593 # set temporary file name
3594 : ${TMPDIR:=$TEMPDIR}
3595 : ${TMPDIR:=$TMP}
3596 : ${TMPDIR:=/tmp}
3597
3598 if [ -n "$tempprefix" ] ; then
3599     mktemp(){
3600         echo $tempprefix.${HOSTNAME}.${UID}
3601     }
3602 elif ! check_cmd mktemp -u XXXXXX; then
3603     # simple replacement for missing mktemp
3604     # NOT SAFE FOR GENERAL USE
3605     mktemp(){
3606         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3607     }
3608 fi
3609
3610 tmpfile(){
3611     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3612         (set -C; exec > $tmp) 2>/dev/null ||
3613         die "Unable to create temporary file in $TMPDIR."
3614     append TMPFILES $tmp
3615     eval $1=$tmp
3616 }
3617
3618 trap 'rm -f -- $TMPFILES' EXIT
3619
3620 tmpfile TMPASM .asm
3621 tmpfile TMPC   .c
3622 tmpfile TMPCPP .cpp
3623 tmpfile TMPE   $EXESUF
3624 tmpfile TMPH   .h
3625 tmpfile TMPM   .m
3626 tmpfile TMPO   .o
3627 tmpfile TMPS   .S
3628 tmpfile TMPSH  .sh
3629 tmpfile TMPV   .ver
3630
3631 unset -f mktemp
3632
3633 chmod +x $TMPE
3634
3635 # make sure we can execute files in $TMPDIR
3636 cat > $TMPSH 2>> $logfile <<EOF
3637 #! /bin/sh
3638 EOF
3639 chmod +x $TMPSH >> $logfile 2>&1
3640 if ! $TMPSH >> $logfile 2>&1; then
3641     cat <<EOF
3642 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3643 variable to another directory and make sure that it is not mounted noexec.
3644 EOF
3645     die "Sanity test failed."
3646 fi
3647
3648 armasm_flags(){
3649     for flag; do
3650         case $flag in
3651             # Filter out MSVC cl.exe options from cflags that shouldn't
3652             # be passed to gas-preprocessor
3653             -M[TD]*)                                            ;;
3654             *)                  echo $flag                      ;;
3655         esac
3656    done
3657 }
3658
3659 ccc_flags(){
3660     for flag; do
3661         case $flag in
3662             -std=c99)           echo -c99                       ;;
3663             -mcpu=*)            echo -arch ${flag#*=}           ;;
3664             -mieee)             echo -ieee                      ;;
3665             -O*|-fast)          echo $flag                      ;;
3666             -fno-math-errno)    echo -assume nomath_errno       ;;
3667             -g)                 echo -g3                        ;;
3668             -Wall)              echo -msg_enable level2         ;;
3669             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3670             -Wl,*)              echo $flag                      ;;
3671             -f*|-W*)                                            ;;
3672             *)                  echo $flag                      ;;
3673         esac
3674    done
3675 }
3676
3677 cparser_flags(){
3678     for flag; do
3679         case $flag in
3680             -Wno-switch)             echo -Wno-switch-enum ;;
3681             -Wno-format-zero-length) ;;
3682             -Wdisabled-optimization) ;;
3683             -Wno-pointer-sign)       echo -Wno-other ;;
3684             *)                       echo $flag ;;
3685         esac
3686     done
3687 }
3688
3689 msvc_common_flags(){
3690     for flag; do
3691         case $flag in
3692             # In addition to specifying certain flags under the compiler
3693             # specific filters, they must be specified here as well or else the
3694             # generic catch all at the bottom will print the original flag.
3695             -Wall)                ;;
3696             -std=c99)             ;;
3697             # Common flags
3698             -fomit-frame-pointer) ;;
3699             -g)                   echo -Z7 ;;
3700             -fno-math-errno)      ;;
3701             -fno-common)          ;;
3702             -fno-signed-zeros)    ;;
3703             -fPIC)                ;;
3704             -mthumb)              ;;
3705             -march=*)             ;;
3706             -lz)                  echo zlib.lib ;;
3707             -lavifil32)           echo vfw32.lib ;;
3708             -lavicap32)           echo vfw32.lib user32.lib ;;
3709             -lx264)               echo libx264.lib ;;
3710             -l*)                  echo ${flag#-l}.lib ;;
3711             -LARGEADDRESSAWARE)   echo $flag ;;
3712             -L*)                  echo -libpath:${flag#-L} ;;
3713             *)                    echo $flag ;;
3714         esac
3715     done
3716 }
3717
3718 msvc_flags(){
3719     msvc_common_flags "$@"
3720     for flag; do
3721         case $flag in
3722             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3723                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3724                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3725                                        -wd4307 \
3726                                        -wd4273 -wd4554 -wd4701 ;;
3727         esac
3728     done
3729 }
3730
3731 icl_flags(){
3732     msvc_common_flags "$@"
3733     for flag; do
3734         case $flag in
3735             # Despite what Intel's documentation says -Wall, which is supported
3736             # on Windows, does enable remarks so disable them here.
3737             -Wall)                echo $flag -Qdiag-disable:remark ;;
3738             -std=c99)             echo -Qstd=c99 ;;
3739             -flto)                echo -ipo ;;
3740         esac
3741     done
3742 }
3743
3744 icc_flags(){
3745     for flag; do
3746         case $flag in
3747             -flto)                echo -ipo ;;
3748             *)                    echo $flag ;;
3749         esac
3750     done
3751 }
3752
3753 pgi_flags(){
3754     for flag; do
3755         case $flag in
3756             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3757             -fomit-frame-pointer) echo -Mnoframe ;;
3758             -g)                   echo -gopt ;;
3759             *)                    echo $flag ;;
3760         esac
3761     done
3762 }
3763
3764 suncc_flags(){
3765     for flag; do
3766         case $flag in
3767             -march=*|-mcpu=*)
3768                 case "${flag#*=}" in
3769                     native)                   echo -xtarget=native       ;;
3770                     v9|niagara)               echo -xarch=sparc          ;;
3771                     ultrasparc)               echo -xarch=sparcvis       ;;
3772                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3773                     i586|pentium)             echo -xchip=pentium        ;;
3774                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3775                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3776                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3777                     pentium4*)          echo -xtarget=pentium4           ;;
3778                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3779                     *-sse3)             echo -xarch=sse3                 ;;
3780                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3781                     bonnell)                   echo -xarch=ssse3         ;;
3782                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3783                     westmere)                  echo -xtarget=westmere    ;;
3784                     silvermont)                echo -xarch=sse4_2        ;;
3785                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3786                     core-avx*|ivybridge|haswell|broadwell)
3787                                                echo -xarch=avx           ;;
3788                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3789                     btver1)                    echo -xarch=amdsse4a      ;;
3790                     btver2|bdver*)             echo -xarch=avx           ;;
3791                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3792                     k8|opteron|athlon64|athlon-fx)
3793                                                echo -xarch=sse2a         ;;
3794                     athlon*)                   echo -xarch=pentium_proa  ;;
3795                 esac
3796                 ;;
3797             -std=c99)             echo -xc99              ;;
3798             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3799             -fPIC)                echo -KPIC -xcode=pic32 ;;
3800             -W*,*)                echo $flag              ;;
3801             -f*-*|-W*|-mimpure-text)                      ;;
3802             -shared)              echo -G                 ;;
3803             *)                    echo $flag              ;;
3804         esac
3805     done
3806 }
3807
3808 tms470_flags(){
3809     for flag; do
3810         case $flag in
3811             -march=*|-mcpu=*)
3812                 case "${flag#*=}" in
3813                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3814                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3815                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3816                     armv6*|arm11*)          echo -mv=6   ;;
3817                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3818                                             echo -mv=5e  ;;
3819                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3820                 esac
3821                 ;;
3822             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3823             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3824             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3825             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3826             -msoft-float)   echo --float_support=vfplib       ;;
3827             -O[0-3]|-mf=*)  echo $flag                        ;;
3828             -g)             echo -g -mn                       ;;
3829             -pds=*)         echo $flag                        ;;
3830             -D*|-I*)        echo $flag                        ;;
3831             --gcc|--abi=*)  echo $flag                        ;;
3832             -me)            echo $flag                        ;;
3833         esac
3834     done
3835 }
3836
3837 probe_cc(){
3838     pfx=$1
3839     _cc=$2
3840     first=$3
3841
3842     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3843     unset _ld_o _ldflags _ld_lib _ld_path
3844     unset _depflags _DEPCMD _DEPFLAGS
3845     _flags_filter=echo
3846
3847     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3848         true # no-op to avoid reading stdin in following checks
3849     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3850         _type=llvm_gcc
3851         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3852         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3853         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3854         _cflags_speed='-O3'
3855         _cflags_size='-Os'
3856     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3857         _type=gcc
3858         gcc_version=$($_cc --version | head -n1)
3859         gcc_basever=$($_cc -dumpversion)
3860         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3861         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3862         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3863         case $gcc_basever in
3864             2) ;;
3865             2.*) ;;
3866             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3867         esac
3868         if [ "$first" = true ]; then
3869             case $gcc_basever in
3870                 4.2*)
3871                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3872             esac
3873         fi
3874         _cflags_speed='-O3'
3875         _cflags_size='-Os'
3876     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3877         _type=icc
3878         _ident=$($_cc --version | head -n1)
3879         _depflags='-MMD'
3880         _cflags_speed='-O3'
3881         _cflags_size='-Os'
3882         _cflags_noopt='-O1'
3883         _flags_filter=icc_flags
3884     elif $_cc -v 2>&1 | grep -q xlc; then
3885         _type=xlc
3886         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3887         _cflags_speed='-O5'
3888         _cflags_size='-O5 -qcompact'
3889     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3890         _type=ccc
3891         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3892         _DEPFLAGS='-M'
3893         _cflags_speed='-fast'
3894         _cflags_size='-O1'
3895         _flags_filter=ccc_flags
3896     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3897         test -d "$sysroot" || die "No valid sysroot specified."
3898         _type=armcc
3899         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3900         armcc_conf="$PWD/armcc.conf"
3901         $_cc --arm_linux_configure                 \
3902              --arm_linux_config_file="$armcc_conf" \
3903              --configure_sysroot="$sysroot"        \
3904              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3905              die "Error creating armcc configuration file."
3906         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3907         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3908         as_default="${cross_prefix}gcc"
3909         _depflags='-MMD'
3910         _cflags_speed='-O3'
3911         _cflags_size='-Os'
3912     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3913         _type=tms470
3914         _ident=$($_cc -version | head -n1 | tr -s ' ')
3915         _flags='--gcc --abi=eabi -me'
3916         _cc_e='-ppl -fe=$@'
3917         _cc_o='-fe=$@'
3918         _depflags='-ppa -ppd=$(@:.o=.d)'
3919         _cflags_speed='-O3 -mf=5'
3920         _cflags_size='-O3 -mf=2'
3921         _flags_filter=tms470_flags
3922     elif $_cc -v 2>&1 | grep -q clang; then
3923         _type=clang
3924         _ident=$($_cc --version 2>/dev/null | head -n1)
3925         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3926         _cflags_speed='-O3'
3927         _cflags_size='-Os'
3928     elif $_cc -V 2>&1 | grep -q Sun; then
3929         _type=suncc
3930         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3931         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3932         _DEPFLAGS='-xM1 -xc99'
3933         _ldflags='-std=c99'
3934         _cflags_speed='-O5'
3935         _cflags_size='-O5 -xspace'
3936         _flags_filter=suncc_flags
3937     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3938         _type=pathscale
3939         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3940         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3941         _cflags_speed='-O2'
3942         _cflags_size='-Os'
3943         _flags_filter='filter_out -Wdisabled-optimization'
3944     elif $_cc -v 2>&1 | grep -q Open64; then
3945         _type=open64
3946         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3947         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3948         _cflags_speed='-O2'
3949         _cflags_size='-Os'
3950         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3951     elif $_cc -V 2>&1 | grep -q Portland; then
3952         _type=pgi
3953         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3954         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3955         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3956         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3957         _cflags_noopt="-O"
3958         _flags_filter=pgi_flags
3959     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3960         _type=armasm
3961         _ident=$($_cc | head -n1)
3962         # 4509: "This form of conditional instruction is deprecated"
3963         _flags="-nologo -ignore 4509"
3964         _flags_filter=armasm_flags
3965     elif $_cc 2>&1 | grep -q Intel; then
3966         _type=icl
3967         _ident=$($_cc 2>&1 | head -n1)
3968         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3969         # Not only is O3 broken on 13.x+ but it is slower on all previous
3970         # versions (tested) as well.
3971         _cflags_speed="-O2"
3972         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3973         if $_cc 2>&1 | grep -q Linker; then
3974             _ld_o='-out:$@'
3975         else
3976             _ld_o='-Fe$@'
3977         fi
3978         _cc_o='-Fo$@'
3979         _cc_e='-P'
3980         _flags_filter=icl_flags
3981         _ld_lib='lib%.a'
3982         _ld_path='-libpath:'
3983         # -Qdiag-error to make icl error when seeing certain unknown arguments
3984         _flags='-nologo -Qdiag-error:4044,10157'
3985         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3986         # with MSVC which enables it by default.
3987         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3988         disable stripping
3989     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3990         _type=msvc
3991         _ident=$($_cc 2>&1 | head -n1)
3992         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3993         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3994         _cflags_speed="-O2"
3995         _cflags_size="-O1"
3996         if $_cc -nologo- 2>&1 | grep -q Linker; then
3997             _ld_o='-out:$@'
3998         else
3999             _ld_o='-Fe$@'
4000         fi
4001         _cc_o='-Fo$@'
4002         _cc_e='-P -Fi$@'
4003         _flags_filter=msvc_flags
4004         _ld_lib='lib%.a'
4005         _ld_path='-libpath:'
4006         _flags='-nologo'
4007         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4008         disable stripping
4009     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4010         _type=cparser
4011         _ident=$($_cc --version | head -n1)
4012         _depflags='-MMD'
4013         _cflags_speed='-O4'
4014         _cflags_size='-O2'
4015         _flags_filter=cparser_flags
4016     fi
4017
4018     eval ${pfx}_type=\$_type
4019     eval ${pfx}_ident=\$_ident
4020 }
4021
4022 set_ccvars(){
4023     eval ${1}_C=\${_cc_c-\${${1}_C}}
4024     eval ${1}_E=\${_cc_e-\${${1}_E}}
4025     eval ${1}_O=\${_cc_o-\${${1}_O}}
4026
4027     if [ -n "$_depflags" ]; then
4028         eval ${1}_DEPFLAGS=\$_depflags
4029     else
4030         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4031         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4032         eval DEP${1}FLAGS=\$_flags
4033     fi
4034 }
4035
4036 probe_cc cc "$cc" "true"
4037 cflags_filter=$_flags_filter
4038 cflags_speed=$_cflags_speed
4039 cflags_size=$_cflags_size
4040 cflags_noopt=$_cflags_noopt
4041 add_cflags $_flags $_cflags
4042 cc_ldflags=$_ldflags
4043 set_ccvars CC
4044
4045 probe_cc hostcc "$host_cc"
4046 host_cflags_filter=$_flags_filter
4047 add_host_cflags  $_flags $_cflags
4048 set_ccvars HOSTCC
4049
4050 test -n "$cc_type" && enable $cc_type ||
4051     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4052
4053 : ${as_default:=$cc}
4054 : ${objcc_default:=$cc}
4055 : ${dep_cc_default:=$cc}
4056 : ${ld_default:=$cc}
4057 : ${host_ld_default:=$host_cc}
4058 set_default ar as objcc dep_cc ld ln_s host_ld windres
4059
4060 probe_cc as "$as"
4061 asflags_filter=$_flags_filter
4062 add_asflags $_flags $_cflags
4063 set_ccvars AS
4064
4065 probe_cc objcc "$objcc"
4066 objcflags_filter=$_flags_filter
4067 add_objcflags $_flags $_cflags
4068 set_ccvars OBJC
4069
4070 probe_cc ld "$ld"
4071 ldflags_filter=$_flags_filter
4072 add_ldflags $_flags $_ldflags
4073 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4074 LD_O=${_ld_o-$LD_O}
4075 LD_LIB=${_ld_lib-$LD_LIB}
4076 LD_PATH=${_ld_path-$LD_PATH}
4077
4078 probe_cc hostld "$host_ld"
4079 host_ldflags_filter=$_flags_filter
4080 add_host_ldflags $_flags $_ldflags
4081 HOSTLD_O=${_ld_o-$HOSTLD_O}
4082
4083 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4084     probe_cc depcc "$dep_cc"
4085     CCDEP=${_DEPCMD:-$DEPCMD}
4086     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4087     DEPCCFLAGS=$_flags
4088 fi
4089
4090 if $ar 2>&1 | grep -q Microsoft; then
4091     arflags="-nologo"
4092     ar_o='-out:$@'
4093 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4094     arflags="rq"
4095     ar_o='$@'
4096 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4097     arflags='-Xany -r -c'
4098     ar_o='$@'
4099 elif $ar 2>&1 | grep -q "\[D\] "; then
4100     arflags="rcD"
4101     ar_o='$@'
4102 else
4103     arflags="rc"
4104     ar_o='$@'
4105 fi
4106
4107 add_cflags $extra_cflags
4108 add_cxxflags $extra_cxxflags
4109 add_objcflags $extra_objcflags
4110 add_asflags $extra_cflags
4111
4112 if test -n "$sysroot"; then
4113     case "$cc_type" in
4114         gcc|llvm_gcc|clang)
4115             add_cppflags --sysroot="$sysroot"
4116             add_ldflags --sysroot="$sysroot"
4117 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4118             add_cppflags -isysroot "$sysroot"
4119             add_ldflags -isysroot "$sysroot"
4120         ;;
4121         tms470)
4122             add_cppflags -I"$sysinclude"
4123             add_ldflags  --sysroot="$sysroot"
4124         ;;
4125     esac
4126 fi
4127
4128 if test "$cpu" = host; then
4129     enabled cross_compile &&
4130         die "--cpu=host makes no sense when cross-compiling."
4131
4132     case "$cc_type" in
4133         gcc|llvm_gcc)
4134             check_native(){
4135                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4136                 sed -n "/cc1.*$1=/{
4137                             s/.*$1=\\([^ ]*\\).*/\\1/
4138                             p
4139                             q
4140                         }" $TMPE
4141             }
4142             cpu=$(check_native -march || check_native -mcpu)
4143         ;;
4144         clang)
4145             check_native(){
4146                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4147                 sed -n "/cc1.*-target-cpu /{
4148                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4149                             p
4150                             q
4151                         }" $TMPE
4152             }
4153             cpu=$(check_native -march)
4154         ;;
4155     esac
4156
4157     test "${cpu:-host}" = host &&
4158         die "--cpu=host not supported with compiler $cc"
4159 fi
4160
4161 # Deal with common $arch aliases
4162 case "$arch" in
4163     aarch64|arm64)
4164         arch="aarch64"
4165     ;;
4166     arm*|iPad*|iPhone*)
4167         arch="arm"
4168     ;;
4169     mips*|IP*)
4170         case "$arch" in
4171         *el)
4172             add_cppflags -EL
4173             add_ldflags -EL
4174         ;;
4175         *eb)
4176             add_cppflags -EB
4177             add_ldflags -EB
4178         ;;
4179         esac
4180         arch="mips"
4181     ;;
4182     parisc*|hppa*)
4183         arch="parisc"
4184     ;;
4185     "Power Macintosh"|ppc*|powerpc*)
4186         arch="ppc"
4187     ;;
4188     s390|s390x)
4189         arch="s390"
4190     ;;
4191     sh4|sh)
4192         arch="sh4"
4193     ;;
4194     sun4u|sparc*)
4195         arch="sparc"
4196     ;;
4197     tilegx|tile-gx)
4198         arch="tilegx"
4199     ;;
4200     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4201         arch="x86"
4202     ;;
4203 esac
4204
4205 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4206 enable $arch
4207
4208 # Add processor-specific flags
4209 if enabled aarch64; then
4210
4211     case $cpu in
4212         armv*)
4213             cpuflags="-march=$cpu"
4214         ;;
4215         *)
4216             cpuflags="-mcpu=$cpu"
4217         ;;
4218     esac
4219
4220 elif enabled alpha; then
4221
4222     cpuflags="-mcpu=$cpu"
4223
4224 elif enabled arm; then
4225
4226     check_arm_arch() {
4227         check_cpp_condition stddef.h \
4228             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4229             $cpuflags
4230     }
4231
4232     probe_arm_arch() {
4233         if   check_arm_arch 4;        then echo armv4
4234         elif check_arm_arch 4T;       then echo armv4t
4235         elif check_arm_arch 5;        then echo armv5
4236         elif check_arm_arch 5E;       then echo armv5e
4237         elif check_arm_arch 5T;       then echo armv5t
4238         elif check_arm_arch 5TE;      then echo armv5te
4239         elif check_arm_arch 5TEJ;     then echo armv5te
4240         elif check_arm_arch 6;        then echo armv6
4241         elif check_arm_arch 6J;       then echo armv6j
4242         elif check_arm_arch 6K;       then echo armv6k
4243         elif check_arm_arch 6Z;       then echo armv6z
4244         elif check_arm_arch 6ZK;      then echo armv6zk
4245         elif check_arm_arch 6T2;      then echo armv6t2
4246         elif check_arm_arch 7;        then echo armv7
4247         elif check_arm_arch 7A  7_A;  then echo armv7-a
4248         elif check_arm_arch 7S;       then echo armv7-a
4249         elif check_arm_arch 7R  7_R;  then echo armv7-r
4250         elif check_arm_arch 7M  7_M;  then echo armv7-m
4251         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4252         elif check_arm_arch 8A  8_A;  then echo armv8-a
4253         fi
4254     }
4255
4256     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4257
4258     case $cpu in
4259         armv*)
4260             cpuflags="-march=$cpu"
4261             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4262         ;;
4263         *)
4264             cpuflags="-mcpu=$cpu"
4265             case $cpu in
4266                 cortex-a*)                               subarch=armv7a  ;;
4267                 cortex-r*)                               subarch=armv7r  ;;
4268                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4269                 arm11*)                                  subarch=armv6   ;;
4270                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4271                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4272                 *)                             subarch=$(probe_arm_arch) ;;
4273             esac
4274         ;;
4275     esac
4276
4277     case "$subarch" in
4278         armv5t*)    enable fast_clz                ;;
4279         armv[6-8]*)
4280             enable fast_clz
4281             disabled fast_unaligned || enable fast_unaligned
4282             ;;
4283     esac
4284
4285 elif enabled avr32; then
4286
4287     case $cpu in
4288         ap7[02]0[0-2])
4289             subarch="avr32_ap"
4290             cpuflags="-mpart=$cpu"
4291         ;;
4292         ap)
4293             subarch="avr32_ap"
4294             cpuflags="-march=$cpu"
4295         ;;
4296         uc3[ab]*)
4297             subarch="avr32_uc"
4298             cpuflags="-mcpu=$cpu"
4299         ;;
4300         uc)
4301             subarch="avr32_uc"
4302             cpuflags="-march=$cpu"
4303         ;;
4304     esac
4305
4306 elif enabled bfin; then
4307
4308     cpuflags="-mcpu=$cpu"
4309
4310 elif enabled mips; then
4311
4312     cpuflags="-march=$cpu"
4313
4314     if [ "$cpu" != "generic" ]; then
4315         disable mips32r2
4316         disable mips32r5
4317         disable mips64r2
4318         disable mips32r6
4319         disable mips64r6
4320         disable loongson2
4321         disable loongson3
4322
4323         case $cpu in
4324             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4325                 enable mips32r2
4326                 disable msa
4327             ;;
4328             p5600|i6400)
4329                 disable mipsdsp
4330                 disable mipsdspr2
4331             ;;
4332             loongson*)
4333                 enable loongson2
4334                 enable loongson3
4335                 enable local_aligned_8 local_aligned_16 local_aligned_32
4336                 enable simd_align_16
4337                 enable fast_64bit
4338                 enable fast_clz
4339                 enable fast_cmov
4340                 enable fast_unaligned
4341                 disable aligned_stack
4342                 case $cpu in
4343                     loongson3*)
4344                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4345                     ;;
4346                     loongson2e)
4347                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4348                     ;;
4349                     loongson2f)
4350                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4351                     ;;
4352                 esac
4353             ;;
4354             *)
4355                 # Unknown CPU. Disable everything.
4356                 warn "unknown CPU. Disabling all MIPS optimizations."
4357                 disable mipsfpu
4358                 disable mipsdsp
4359                 disable mipsdspr2
4360                 disable msa
4361                 disable mmi
4362             ;;
4363         esac
4364
4365         case $cpu in
4366             24kc)
4367                 disable mipsfpu
4368                 disable mipsdsp
4369                 disable mipsdspr2
4370             ;;
4371             24kf*)
4372                 disable mipsdsp
4373                 disable mipsdspr2
4374             ;;
4375             24kec|34kc|1004kc)
4376                 disable mipsfpu
4377                 disable mipsdspr2
4378             ;;
4379             24kef*|34kf*|1004kf*)
4380                 disable mipsdspr2
4381             ;;
4382             74kc)
4383                 disable mipsfpu
4384             ;;
4385             p5600)
4386                 enable mips32r5
4387                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4388             ;;
4389             i6400)
4390                 enable mips64r6
4391                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4392             ;;
4393         esac
4394     else
4395         # We do not disable anything. Is up to the user to disable the unwanted features.
4396         warn 'generic cpu selected'
4397     fi
4398
4399 elif enabled ppc; then
4400
4401     disable ldbrx
4402
4403     case $(tolower $cpu) in
4404         601|ppc601|powerpc601)
4405             cpuflags="-mcpu=601"
4406             disable altivec
4407         ;;
4408         603*|ppc603*|powerpc603*)
4409             cpuflags="-mcpu=603"
4410             disable altivec
4411         ;;
4412         604*|ppc604*|powerpc604*)
4413             cpuflags="-mcpu=604"
4414             disable altivec
4415         ;;
4416         g3|75*|ppc75*|powerpc75*)
4417             cpuflags="-mcpu=750"
4418             disable altivec
4419         ;;
4420         g4|745*|ppc745*|powerpc745*)
4421             cpuflags="-mcpu=7450"
4422             disable vsx
4423         ;;
4424         74*|ppc74*|powerpc74*)
4425             cpuflags="-mcpu=7400"
4426             disable vsx
4427         ;;
4428         g5|970|ppc970|powerpc970)
4429             cpuflags="-mcpu=970"
4430             disable vsx
4431         ;;
4432         power[3-6]*)
4433             cpuflags="-mcpu=$cpu"
4434             disable vsx
4435         ;;
4436         power[7-8]*)
4437             cpuflags="-mcpu=$cpu"
4438         ;;
4439         cell)
4440             cpuflags="-mcpu=cell"
4441             enable ldbrx
4442             disable vsx
4443         ;;
4444         e500mc)
4445             cpuflags="-mcpu=e500mc"
4446             disable altivec
4447         ;;
4448         e500v2)
4449             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4450             disable altivec
4451             disable dcbzl
4452         ;;
4453         e500)
4454             cpuflags="-mcpu=8540 -mhard-float"
4455             disable altivec
4456             disable dcbzl
4457         ;;
4458     esac
4459
4460 elif enabled sparc; then
4461
4462     case $cpu in
4463         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4464             cpuflags="-mcpu=$cpu"
4465         ;;
4466         ultrasparc*|niagara[234])
4467             cpuflags="-mcpu=$cpu"
4468         ;;
4469     esac
4470
4471 elif enabled x86; then
4472
4473     case $cpu in
4474         i[345]86|pentium)
4475             cpuflags="-march=$cpu"
4476             disable i686
4477             disable mmx
4478         ;;
4479         # targets that do NOT support nopl and conditional mov (cmov)
4480         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4481             cpuflags="-march=$cpu"
4482             disable i686
4483         ;;
4484         # targets that do support nopl and conditional mov (cmov)
4485         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4486         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4487             cpuflags="-march=$cpu"
4488             enable i686
4489             enable fast_cmov
4490         ;;
4491         # targets that do support conditional mov but on which it's slow
4492         pentium4|pentium4m|prescott|nocona)
4493             cpuflags="-march=$cpu"
4494             enable i686
4495             disable fast_cmov
4496         ;;
4497     esac
4498
4499 fi
4500
4501 if [ "$cpu" != generic ]; then
4502     add_cflags  $cpuflags
4503     add_asflags $cpuflags
4504     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4505 fi
4506
4507 # compiler sanity check
4508 check_exec <<EOF
4509 int main(void){ return 0; }
4510 EOF
4511 if test "$?" != 0; then
4512     echo "$cc is unable to create an executable file."
4513     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4514         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4515         echo "Only do this if you know what cross compiling means."
4516     fi
4517     die "C compiler test failed."
4518 fi
4519
4520 add_cppflags -D_ISOC99_SOURCE
4521 add_cxxflags -D__STDC_CONSTANT_MACROS
4522 check_cflags -std=c99
4523 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4524 #include <stdlib.h>
4525 EOF
4526 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4527 #include <stdlib.h>
4528 EOF
4529
4530 add_host_cppflags -D_ISOC99_SOURCE
4531 check_host_cflags -std=c99
4532 check_host_cflags -Wall
4533 check_host_cflags -O3
4534
4535 check_64bit(){
4536     arch32=$1
4537     arch64=$2
4538     expr=$3
4539     check_code cc "" "int test[2*($expr) - 1]" &&
4540         subarch=$arch64 || subarch=$arch32
4541 }
4542
4543 case "$arch" in
4544     aarch64|alpha|ia64)
4545         spic=$shared
4546     ;;
4547     mips)
4548         check_64bit mips mips64 '_MIPS_SIM > 1'
4549         spic=$shared
4550     ;;
4551     parisc)
4552         check_64bit parisc parisc64 'sizeof(void *) > 4'
4553         spic=$shared
4554     ;;
4555     ppc)
4556         check_64bit ppc ppc64 'sizeof(void *) > 4'
4557         spic=$shared
4558     ;;
4559     s390)
4560         check_64bit s390 s390x 'sizeof(void *) > 4'
4561         spic=$shared
4562     ;;
4563     sparc)
4564         check_64bit sparc sparc64 'sizeof(void *) > 4'
4565         spic=$shared
4566     ;;
4567     x86)
4568         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4569         # Treat x32 as x64 for now. Note it also needs spic=$shared
4570         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4571             subarch=x86_64
4572         if test "$subarch" = "x86_64"; then
4573             spic=$shared
4574         fi
4575     ;;
4576     ppc)
4577         check_cc <<EOF && subarch="ppc64"
4578         int test[(int)sizeof(char*) - 7];
4579 EOF
4580     ;;
4581 esac
4582
4583 enable $subarch
4584 enabled spic && enable_weak pic
4585
4586 # OS specific
4587 case $target_os in
4588     aix)
4589         SHFLAGS=-shared
4590         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4591         enabled shared && add_ldflags -Wl,-brtl
4592         ;;
4593     android)
4594         disable symver
4595         enable section_data_rel_ro
4596         SLIB_INSTALL_NAME='$(SLIBNAME)'
4597         SLIB_INSTALL_LINKS=
4598         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4599         ;;
4600     haiku)
4601         prefix_default="/boot/common"
4602         network_extralibs="-lnetwork"
4603         host_libs=
4604         ;;
4605     sunos)
4606         SHFLAGS='-shared -Wl,-h,$$(@F)'
4607         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4608         network_extralibs="-lsocket -lnsl"
4609         add_cppflags -D__EXTENSIONS__
4610         # When using suncc to build, the Solaris linker will mark
4611         # an executable with each instruction set encountered by
4612         # the Solaris assembler.  As our libraries contain their own
4613         # guards for processor-specific code, instead suppress
4614         # generation of the HWCAPS ELF section on Solaris x86 only.
4615         enabled_all suncc x86 &&
4616             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4617             add_ldflags -Wl,-M,mapfile
4618         nm_default='nm -P -g'
4619         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4620         ;;
4621     netbsd)
4622         disable symver
4623         oss_indev_extralibs="-lossaudio"
4624         oss_outdev_extralibs="-lossaudio"
4625         enabled gcc || check_ldflags -Wl,-zmuldefs
4626         ;;
4627     openbsd|bitrig)
4628         disable symver
4629         SHFLAGS='-shared'
4630         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4631         SLIB_INSTALL_LINKS=
4632         oss_indev_extralibs="-lossaudio"
4633         oss_outdev_extralibs="-lossaudio"
4634         ;;
4635     dragonfly)
4636         disable symver
4637         ;;
4638     freebsd)
4639         ;;
4640     bsd/os)
4641         add_extralibs -lpoll -lgnugetopt
4642         strip="strip -d"
4643         ;;
4644     darwin)
4645         enabled ppc && add_asflags -force_cpusubtype_ALL
4646         install_name_dir_default='$(SHLIBDIR)'
4647         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4648         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4649         strip="${strip} -x"
4650         add_ldflags -Wl,-dynamic,-search_paths_first
4651         SLIBSUF=".dylib"
4652         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4653         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4654         objformat="macho"
4655         enabled x86_64 && objformat="macho64"
4656         enabled_any pic shared x86_64 ||
4657             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4658         check_header dispatch/dispatch.h &&
4659             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4660         ;;
4661     msys*)
4662         die "Native MSYS builds are discouraged, please use the MINGW environment."
4663         ;;
4664     mingw32*|mingw64*)
4665         if test $target_os = "mingw32ce"; then
4666             disable network
4667         else
4668             target_os=mingw32
4669         fi
4670         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4671         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4672         LIBTARGET=i386
4673         if enabled x86_64; then
4674             LIBTARGET="i386:x86-64"
4675         elif enabled arm; then
4676             LIBTARGET=arm-wince
4677         fi
4678         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4679         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4680         shlibdir_default="$bindir_default"
4681         SLIBPREF=""
4682         SLIBSUF=".dll"
4683         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4684         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4685         dlltool="${cross_prefix}dlltool"
4686         if check_cmd lib.exe -list; then
4687             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4688             if enabled x86_64; then
4689                 LIBTARGET=x64
4690             fi
4691         elif check_cmd $dlltool --version; then
4692             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4693         fi
4694         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4695         SLIB_INSTALL_LINKS=
4696         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4697         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4698         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4699         objformat="win32"
4700         ranlib=:
4701         enable dos_paths
4702         check_ldflags -Wl,--nxcompat,--dynamicbase
4703         # Lets work around some stupidity in binutils.
4704         # ld will strip relocations from executables even though we need them
4705         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4706         # however ld then forgets what the entry point should be (oops) so we
4707         # have to manually (re)set it.
4708         if enabled x86_32; then
4709             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4710         elif enabled x86_64; then
4711             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4712             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4713             # Set image base >4GB for extra entropy with HEASLR
4714             add_ldexeflags -Wl,--image-base,0x140000000
4715             append SHFLAGS -Wl,--image-base,0x180000000
4716         fi
4717         ;;
4718     win32|win64)
4719         disable symver
4720         if enabled shared; then
4721             # Link to the import library instead of the normal static library
4722             # for shared libs.
4723             LD_LIB='%.lib'
4724             # Cannot build both shared and static libs with MSVC or icl.
4725             disable static
4726         fi
4727         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4728         shlibdir_default="$bindir_default"
4729         SLIBPREF=""
4730         SLIBSUF=".dll"
4731         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4732         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4733         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4734         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4735         SLIB_INSTALL_LINKS=
4736         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4737         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4738         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4739         objformat="win32"
4740         ranlib=:
4741         enable dos_paths
4742         ;;
4743     cygwin*)
4744         target_os=cygwin
4745         shlibdir_default="$bindir_default"
4746         SLIBPREF="cyg"
4747         SLIBSUF=".dll"
4748         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4749         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4750         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4751         SLIB_INSTALL_LINKS=
4752         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4753         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4754         objformat="win32"
4755         enable dos_paths
4756         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4757         ;;
4758     *-dos|freedos|opendos)
4759         network_extralibs="-lsocket"
4760         objformat="coff"
4761         enable dos_paths
4762         add_cppflags -U__STRICT_ANSI__
4763         ;;
4764     linux)
4765         enable dv1394
4766         enable section_data_rel_ro
4767         ;;
4768     irix*)
4769         target_os=irix
4770         ranlib="echo ignoring ranlib"
4771         ;;
4772     os/2*)
4773         strip="lxlite -CS"
4774         objformat="aout"
4775         add_cppflags -D_GNU_SOURCE
4776         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4777         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4778         LIBSUF="_s.a"
4779         SLIBPREF=""
4780         SLIBSUF=".dll"
4781         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4782         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4783         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
4784             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
4785             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
4786             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
4787             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
4788         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
4789             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
4790         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4791         SLIB_INSTALL_LINKS=
4792         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
4793         enable dos_paths
4794         enable_weak os2threads
4795         ;;
4796     gnu/kfreebsd)
4797         add_cppflags -D_BSD_SOURCE
4798         ;;
4799     gnu)
4800         ;;
4801     qnx)
4802         add_cppflags -D_QNX_SOURCE
4803         network_extralibs="-lsocket"
4804         ;;
4805     symbian)
4806         SLIBSUF=".dll"
4807         enable dos_paths
4808         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4809         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4810         add_ldflags -Wl,--target1-abs,--no-undefined \
4811                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4812                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4813         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4814                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4815                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4816         ;;
4817     osf1)
4818         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4819         ;;
4820     minix)
4821         ;;
4822     plan9)
4823         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4824                      -D_REENTRANT_SOURCE        \
4825                      -D_RESEARCH_SOURCE         \
4826                      -DFD_SETSIZE=96            \
4827                      -DHAVE_SOCK_OPTS
4828         add_compat strtod.o strtod=avpriv_strtod
4829         network_extralibs='-lbsd'
4830         exeobjs=compat/plan9/main.o
4831         disable ffserver
4832         cp_f='cp'
4833         ;;
4834     none)
4835         ;;
4836     *)
4837         die "Unknown OS '$target_os'."
4838         ;;
4839 esac
4840
4841 # test if creating links works
4842 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4843 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4844 mkdir "$link_dest"
4845 $ln_s "$link_dest" "$link_name"
4846 touch "$link_dest/test_file"
4847 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4848     # create link to source path
4849     [ -e src ] && rm src
4850     $ln_s "$source_path" src
4851     source_link=src
4852 else
4853     # creating directory links doesn't work
4854     # fall back to using the full source path
4855     source_link="$source_path"
4856 fi
4857 # cleanup
4858 rm -r "$link_dest"
4859 rm -r "$link_name"
4860
4861 # determine libc flavour
4862
4863 probe_libc(){
4864     pfx=$1
4865     pfx_no_=${pfx%_}
4866     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4867     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4868         eval ${pfx}libc_type=uclibc
4869         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4870     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4871         eval ${pfx}libc_type=glibc
4872         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4873     # MinGW headers can be installed on Cygwin, so check for newlib first.
4874     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4875         eval ${pfx}libc_type=newlib
4876         add_${pfx}cppflags -U__STRICT_ANSI__
4877     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4878     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4879         eval ${pfx}libc_type=mingw64
4880         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4881             add_compat msvcrt/snprintf.o
4882             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4883         fi
4884         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4885         eval test \$${pfx_no_}cc_type = "gcc" &&
4886             add_${pfx}cppflags -D__printf__=__gnu_printf__
4887     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4888          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4889         eval ${pfx}libc_type=mingw32
4890         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4891             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4892             die "ERROR: MinGW32 runtime version must be >= 3.15."
4893         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4894         eval test \$${pfx_no_}cc_type = "gcc" &&
4895             add_${pfx}cppflags -D__printf__=__gnu_printf__
4896     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4897         eval ${pfx}libc_type=msvcrt
4898         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4899             if [ "$pfx" = host_ ]; then
4900                 add_host_cppflags -Dsnprintf=_snprintf
4901             else
4902                 add_compat strtod.o strtod=avpriv_strtod
4903                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4904                                              _snprintf=avpriv_snprintf  \
4905                                              vsnprintf=avpriv_vsnprintf
4906             fi
4907         fi
4908         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4909         # 0x601 by default unless something else is set by the user.
4910         # This can easily lead to us detecting functions only present
4911         # in such new versions and producing binaries requiring windows 7.0.
4912         # Therefore explicitly set the default to XP unless the user has
4913         # set something else on the command line.
4914         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4915         # family. For these cases, configure is free to use any functions
4916         # found in the SDK headers by default. (Alternatively, we could force
4917         # _WIN32_WINNT to 0x0602 in that case.)
4918         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4919             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4920 #ifdef WINAPI_FAMILY
4921 #include <winapifamily.h>
4922 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4923 #error not desktop
4924 #endif
4925 #endif
4926 EOF
4927     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4928         eval ${pfx}libc_type=klibc
4929     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4930         eval ${pfx}libc_type=bionic
4931     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4932         eval ${pfx}libc_type=solaris
4933         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4934     fi
4935     check_${pfx}cc <<EOF
4936 #include <time.h>
4937 void *v = localtime_r;
4938 EOF
4939 test "$?" != 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
4940 #include <time.h>
4941 void *v = localtime_r;
4942 EOF
4943
4944 }
4945
4946 probe_libc
4947 test -n "$libc_type" && enable libc_$libc_type
4948 probe_libc host_
4949 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4950
4951 case $libc_type in
4952     bionic)
4953         add_compat strtod.o strtod=avpriv_strtod
4954         ;;
4955 esac
4956
4957 # hacks for compiler/libc/os combinations
4958
4959 if enabled_all tms470 libc_glibc; then
4960     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4961     add_cppflags -D__USER_LABEL_PREFIX__=
4962     add_cppflags -D__builtin_memset=memset
4963     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4964     add_cflags   -pds=48    # incompatible redefinition of macro
4965 fi
4966
4967 if enabled_all ccc libc_glibc; then
4968     add_ldflags -Wl,-z,now  # calls to libots crash without this
4969 fi
4970
4971 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4972     add_cppflags '-I\$(SRC_PATH)/compat/float'
4973
4974 esc(){
4975     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4976 }
4977
4978 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4979
4980 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4981
4982 set_default libdir
4983 : ${shlibdir_default:="$libdir"}
4984 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4985
4986 set_default $PATHS_LIST
4987 set_default nm
4988
4989 # we need to build at least one lib type
4990 if ! enabled_any static shared; then
4991     cat <<EOF
4992 At least one library type must be built.
4993 Specify --enable-static to build the static libraries or --enable-shared to
4994 build the shared libraries as well. To only build the shared libraries specify
4995 --disable-static in addition to --enable-shared.
4996 EOF
4997     exit 1
4998 fi
4999
5000 die_license_disabled() {
5001     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
5002 }
5003
5004 die_license_disabled_gpl() {
5005     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
5006 }
5007
5008 die_license_disabled gpl frei0r
5009 die_license_disabled gpl libcdio
5010 die_license_disabled gpl librubberband
5011 die_license_disabled gpl libsmbclient
5012 die_license_disabled gpl libvidstab
5013 die_license_disabled gpl libx264
5014 die_license_disabled gpl libx265
5015 die_license_disabled gpl libxavs
5016 die_license_disabled gpl libxvid
5017 die_license_disabled gpl x11grab
5018
5019 die_license_disabled nonfree cuda
5020 die_license_disabled nonfree cuvid
5021 die_license_disabled nonfree libfaac
5022 die_license_disabled nonfree libnpp
5023 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
5024 enabled gpl && die_license_disabled_gpl nonfree openssl
5025
5026 die_license_disabled version3 gmp
5027 die_license_disabled version3 libopencore_amrnb
5028 die_license_disabled version3 libopencore_amrwb
5029 die_license_disabled version3 libsmbclient
5030 die_license_disabled version3 libvo_amrwbenc
5031
5032 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
5033
5034 disabled optimizations || check_cflags -fomit-frame-pointer
5035
5036 enable_weak_pic() {
5037     disabled pic && return
5038     enable pic
5039     add_cppflags -DPIC
5040     case "$target_os" in
5041     mingw*|cygwin*)
5042         ;;
5043     *)
5044         add_cflags -fPIC
5045         ;;
5046     esac
5047     add_asflags  -fPIC
5048 }
5049
5050 enabled pic && enable_weak_pic
5051
5052 check_cc <<EOF || die "Symbol mangling check failed."
5053 int ff_extern;
5054 EOF
5055 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5056 extern_prefix=${sym%%ff_extern*}
5057
5058 check_cc <<EOF && enable_weak inline_asm
5059 void foo(void) { __asm__ volatile ("" ::); }
5060 EOF
5061
5062 _restrict=
5063 for restrict_keyword in restrict __restrict__ __restrict; do
5064     check_cc <<EOF && _restrict=$restrict_keyword && break
5065 void foo(char * $restrict_keyword p);
5066 EOF
5067 done
5068
5069 check_cc <<EOF && enable pragma_deprecated
5070 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5071 EOF
5072
5073 check_cc <<EOF && enable attribute_packed
5074 struct { int x; } __attribute__((packed)) x;
5075 EOF
5076
5077 check_cc <<EOF && enable attribute_may_alias
5078 union { int x; } __attribute__((may_alias)) x;
5079 EOF
5080
5081 check_cc <<EOF || die "endian test failed"
5082 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5083 EOF
5084 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5085
5086 if ! enabled ppc64 || enabled bigendian; then
5087     disable vsx
5088 fi
5089
5090 check_gas() {
5091     log "check_gas using '$as' as AS"
5092     # :vararg is used on aarch64, arm and ppc altivec
5093     check_as <<EOF || return 1
5094 .macro m n, y:vararg=0
5095 \n: .int \y
5096 .endm
5097 m x
5098 EOF
5099     # .altmacro is only used in arm asm
5100     ! enabled arm || check_as <<EOF || return 1
5101 .altmacro
5102 EOF
5103     enable gnu_as
5104     return 0
5105 }
5106
5107 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5108     nogas=:
5109     enabled_any arm aarch64 && nogas=die
5110     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5111     as_noop=-v
5112
5113     case $as_type in
5114         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5115         gcc)  gaspp_as_type=gas ;;
5116         *)    gaspp_as_type=$as_type ;;
5117     esac
5118
5119     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5120
5121     test "${as#*gas-preprocessor.pl}" != "$as" ||
5122     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5123         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5124
5125     if ! check_gas ; then
5126         as=${gas:=$as}
5127         check_gas || \
5128             $nogas "GNU assembler not found, install/update gas-preprocessor"
5129     fi
5130
5131     check_as <<EOF && enable as_func
5132 .func test
5133 .endfunc
5134 EOF
5135 fi
5136
5137 check_inline_asm inline_asm_labels '"1:\n"'
5138
5139 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5140
5141 if enabled aarch64; then
5142     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5143     # internal assembler in clang 3.3 does not support this instruction
5144     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5145     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5146
5147     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5148
5149 elif enabled alpha; then
5150
5151     check_cflags -mieee
5152
5153 elif enabled arm; then
5154
5155     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5156
5157     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5158 float func(float a, float b){ return a+b; }
5159 EOF
5160
5161     enabled thumb && check_cflags -mthumb || check_cflags -marm
5162
5163     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5164         enable vfp_args
5165     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5166         enable vfp_args
5167     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5168         case "${cross_prefix:-$cc}" in
5169             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5170             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5171 __asm__ (".eabi_attribute 28, 1");
5172 int main(void) { return 0; }
5173 EOF
5174         esac
5175         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5176     fi
5177
5178     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5179     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5180     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5181     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5182     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5183     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5184     enabled setend  && check_insn setend  'setend be'
5185
5186     [ $target_os = linux ] || [ $target_os = android ] ||
5187         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5188             $ARCH_EXT_LIST_ARM
5189
5190     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5191
5192     check_as <<EOF && enable as_dn_directive
5193 ra .dn d0.i16
5194 .unreq ra
5195 EOF
5196
5197     # llvm's integrated assembler supports .object_arch from llvm 3.5
5198     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5199 .object_arch armv4
5200 EOF
5201
5202     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5203
5204 elif enabled mips; then
5205
5206     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5207     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5208     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5209
5210     # Enable minimum ISA based on selected options
5211     if enabled mips64; then
5212         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5213         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5214         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5215     else
5216         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5217         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5218         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5219         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5220     fi
5221
5222     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5223     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5224     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5225     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5226     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5227
5228 elif enabled parisc; then
5229
5230     if enabled gcc; then
5231         case $($cc -dumpversion) in
5232             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5233         esac
5234     fi
5235
5236 elif enabled ppc; then
5237
5238     enable local_aligned_8 local_aligned_16 local_aligned_32
5239
5240     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5241     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5242     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5243     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5244
5245     # AltiVec flags: The FSF version of GCC differs from the Apple version
5246     if enabled altivec; then
5247         check_cflags -maltivec -mabi=altivec &&
5248         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5249         check_cflags -faltivec
5250
5251         # check if our compiler supports Motorola AltiVec C API
5252         check_cc <<EOF || disable altivec
5253 $inc_altivec_h
5254 int main(void) {
5255     vector signed int v1 = (vector signed int) { 0 };
5256     vector signed int v2 = (vector signed int) { 1 };
5257     v1 = vec_add(v1, v2);
5258     return 0;
5259 }
5260 EOF
5261
5262         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5263     fi
5264
5265     if enabled vsx; then
5266         check_cflags -mvsx &&
5267         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5268     fi
5269
5270     if enabled power8; then
5271         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5272     fi
5273
5274 elif enabled x86; then
5275
5276     check_builtin rdtsc    intrin.h   "__rdtsc()"
5277     check_builtin mm_empty mmintrin.h "_mm_empty()"
5278
5279     enable local_aligned_8 local_aligned_16 local_aligned_32
5280
5281     # check whether EBP is available on x86
5282     # As 'i' is stored on the stack, this program will crash
5283     # if the base pointer is used to access it because the
5284     # base pointer is cleared in the inline assembly code.
5285     check_exec_crash <<EOF && enable ebp_available
5286 volatile int i=0;
5287 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5288 return i;
5289 EOF
5290
5291     # check whether EBX is available on x86
5292     check_inline_asm ebx_available '""::"b"(0)' &&
5293         check_inline_asm ebx_available '"":::"%ebx"'
5294
5295     # check whether xmm clobbers are supported
5296     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5297
5298     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5299         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5300
5301     # check whether binutils is new enough to compile SSSE3/MMXEXT
5302     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5303     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5304
5305     if ! disabled_any asm mmx yasm; then
5306         if check_cmd $yasmexe --version; then
5307             enabled x86_64 && yasm_extra="-m amd64"
5308             yasm_debug="-g dwarf2"
5309         elif check_cmd nasm -v; then
5310             yasmexe=nasm
5311             yasm_debug="-g -F dwarf"
5312             if enabled x86_64; then
5313                 case "$objformat" in
5314                     elf)   objformat=elf64 ;;
5315                     win32) objformat=win64 ;;
5316                 esac
5317             fi
5318         fi
5319
5320         YASMFLAGS="-f $objformat $yasm_extra"
5321         enabled pic               && append YASMFLAGS "-DPIC"
5322         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5323         case "$objformat" in
5324             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5325         esac
5326
5327         check_yasm "movbe ecx, [5]" && enable yasm ||
5328             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5329         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5330         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5331         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5332         check_yasm "CPU amdnop" || disable cpunop
5333     fi
5334
5335     case "$cpu" in
5336         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5337             disable fast_clz
5338         ;;
5339     esac
5340
5341 fi
5342
5343 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5344
5345 check_ldflags -Wl,--as-needed
5346 check_ldflags -Wl,-z,noexecstack
5347
5348 if check_func dlopen; then
5349     ldl=
5350 elif check_func dlopen -ldl; then
5351     ldl=-ldl
5352 fi
5353
5354 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5355 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5356 frei0r_filter_extralibs='$ldl'
5357 frei0r_src_filter_extralibs='$ldl'
5358 ladspa_filter_extralibs='$ldl'
5359 nvenc_encoder_extralibs='$ldl'
5360 coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5361 coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5362
5363 if ! disabled network; then
5364     check_func getaddrinfo $network_extralibs
5365     check_func inet_aton $network_extralibs
5366
5367     check_type netdb.h "struct addrinfo"
5368     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5369     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5370     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5371     check_type poll.h "struct pollfd"
5372     check_type netinet/sctp.h "struct sctp_event_subscribe"
5373     check_struct "sys/socket.h" "struct msghdr" msg_flags
5374     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5375     check_type netinet/in.h "struct sockaddr_in6"
5376     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5377     check_type "sys/types.h sys/socket.h" socklen_t
5378
5379     # Prefer arpa/inet.h over winsock2
5380     if check_header arpa/inet.h ; then
5381         check_func closesocket
5382     elif check_header winsock2.h ; then
5383         check_func_headers winsock2.h closesocket -lws2 &&
5384             network_extralibs="-lws2" ||
5385         { check_func_headers winsock2.h closesocket -lws2_32 &&
5386             network_extralibs="-lws2_32"; } || disable winsock2_h network
5387         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5388
5389         check_type ws2tcpip.h socklen_t
5390         check_type ws2tcpip.h "struct addrinfo"
5391         check_type ws2tcpip.h "struct group_source_req"
5392         check_type ws2tcpip.h "struct ip_mreq_source"
5393         check_type ws2tcpip.h "struct ipv6_mreq"
5394         check_type winsock2.h "struct pollfd"
5395         check_struct winsock2.h "struct sockaddr" sa_len
5396         check_type ws2tcpip.h "struct sockaddr_in6"
5397         check_type ws2tcpip.h "struct sockaddr_storage"
5398     else
5399         disable network
5400     fi
5401 fi
5402
5403 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5404 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5405 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5406 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5407 check_builtin sarestart signal.h "SA_RESTART"
5408 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5409 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5410 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5411 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5412 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5413
5414 case "$custom_allocator" in
5415     jemalloc)
5416         # jemalloc by default does not use a prefix
5417         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5418     ;;
5419     tcmalloc)
5420         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5421         malloc_prefix=tc_
5422     ;;
5423 esac
5424
5425 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5426 check_func  ${malloc_prefix}memalign            && enable memalign
5427 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5428
5429 check_func  access
5430 check_func  arc4random
5431 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5432 check_func  fcntl
5433 check_func  fork
5434 check_func  gethrtime
5435 check_func  getopt
5436 check_func  getrusage
5437 check_func  gettimeofday
5438 check_func  isatty
5439 check_func  mach_absolute_time
5440 check_func  mkstemp
5441 check_func  mmap
5442 check_func  mprotect
5443 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5444 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5445 check_func  sched_getaffinity
5446 check_func  setrlimit
5447 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5448 check_func  strerror_r
5449 check_func  sysconf
5450 check_func  sysctl
5451 check_func  usleep
5452
5453 check_func_headers conio.h kbhit
5454 check_func_headers io.h setmode
5455 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5456 check_func_headers stdlib.h getenv
5457 check_func_headers sys/stat.h lstat
5458
5459 check_func_headers windows.h CoTaskMemFree -lole32
5460 check_func_headers windows.h GetProcessAffinityMask
5461 check_func_headers windows.h GetProcessTimes
5462 check_func_headers windows.h GetSystemTimeAsFileTime
5463 check_func_headers windows.h MapViewOfFile
5464 check_func_headers windows.h PeekNamedPipe
5465 check_func_headers windows.h SetConsoleTextAttribute
5466 check_func_headers windows.h SetConsoleCtrlHandler
5467 check_func_headers windows.h Sleep
5468 check_func_headers windows.h VirtualAlloc
5469 check_struct windows.h "CONDITION_VARIABLE" Ptr
5470 check_func_headers glob.h glob
5471 enabled xlib &&
5472     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5473
5474 check_header AudioToolbox/AudioToolbox.h
5475 check_header direct.h
5476 check_header dirent.h
5477 check_header dlfcn.h
5478 check_header d3d11.h
5479 check_header dxva.h
5480 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5481 check_header io.h
5482 check_header libcrystalhd/libcrystalhd_if.h
5483 check_header mach/mach_time.h
5484 check_header malloc.h
5485 check_header net/udplite.h
5486 check_header poll.h
5487 check_header sys/mman.h
5488 check_header sys/param.h
5489 check_header sys/resource.h
5490 check_header sys/select.h
5491 check_header sys/time.h
5492 check_header sys/un.h
5493 check_header termios.h
5494 check_header unistd.h
5495 check_header valgrind/valgrind.h
5496 check_header vdpau/vdpau.h
5497 check_header vdpau/vdpau_x11.h
5498 check_header VideoDecodeAcceleration/VDADecoder.h
5499 check_header VideoToolbox/VideoToolbox.h
5500 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5501 enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo
5502 check_header windows.h
5503 check_header X11/extensions/XvMClib.h
5504 check_header asm/types.h
5505
5506 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5507 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5508 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5509 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5510
5511 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5512
5513 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5514 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5515 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5516 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5517 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5518
5519 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5520 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5521 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5522 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5523 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5524 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5525
5526 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5527
5528 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
5529 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
5530 check_type "cuviddec.h" "CUVIDVC1PICPARAMS"
5531 check_type "cuviddec.h" "CUVIDVP9PICPARAMS"
5532
5533 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5534
5535 if ! disabled w32threads && ! enabled pthreads; then
5536     check_func_headers "windows.h process.h" _beginthreadex &&
5537         enable w32threads || disable w32threads
5538     if ! enabled w32threads && enabled winrt; then
5539         check_func_headers "windows.h" CreateThread &&
5540             enable w32threads || disable w32threads
5541     fi
5542 fi
5543
5544 # check for some common methods of building with pthread support
5545 # do this before the optional library checks as some of them require pthreads
5546 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5547     enable pthreads
5548     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5549         add_cflags -pthread
5550         add_extralibs -pthread
5551     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5552         add_cflags -pthreads
5553         add_extralibs -pthreads
5554     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5555         add_cflags -ldl -pthread
5556         add_extralibs -ldl -pthread
5557     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5558         add_extralibs -lpthreadGC2
5559     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5560         :
5561     elif ! check_func pthread_join && ! check_func pthread_create; then
5562         disable pthreads
5563     fi
5564     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5565 fi
5566
5567
5568 if enabled pthreads; then
5569   check_func pthread_cancel
5570 fi
5571
5572 enabled pthreads &&
5573     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
5574
5575 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5576 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5577 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5578
5579 check_lib math.h sin -lm && LIBM="-lm"
5580 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5581
5582 atan2f_args=2
5583 copysign_args=2
5584 hypot_args=2
5585 ldexpf_args=2
5586 powf_args=2
5587
5588 for func in $MATH_FUNCS; do
5589     eval check_mathfunc $func \${${func}_args:-1}
5590 done
5591
5592 for func in $COMPLEX_FUNCS; do
5593     eval check_complexfunc $func \${${func}_args:-1}
5594 done
5595
5596 # Enable CUVID by default if CUDA is enabled
5597 if enabled cuda && ! disabled cuvid; then
5598     enable cuvid
5599 fi
5600
5601 # these are off by default, so fail if requested and not available
5602 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5603 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5604                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5605 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5606                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5607                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5608 enabled cuda              && { check_lib cuda.h cuInit -lcuda ||
5609                                die "ERROR: CUDA not found"; }
5610 enabled cuvid             && { check_lib cuviddec.h cuvidCreateDecoder -lnvcuvid ||
5611                                die "ERROR: CUVID not found"; } &&
5612                              { enabled cuda ||
5613                                die "ERROR: CUVID requires CUDA"; }
5614 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5615 enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
5616 enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
5617 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5618 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5619 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5620 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5621 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&
5622                                check_lib2 "dlfcn.h" dlopen -ldl; }
5623 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5624 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5625 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5626 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5627 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5628 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5629                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5630                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5631 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5632 enabled libebur128        && require ebur128 ebur128.h ebur128_relative_threshold -lebur128
5633 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5634 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5635                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5636                                  warn "using libfdk without pkg-config"; } }
5637 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"
5638 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5639 enabled fontconfig        && enable libfontconfig
5640 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5641 enabled libfreetype       && require_libfreetype
5642 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5643 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5644 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5645                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5646                                done || die "ERROR: libgsm not found"; }
5647 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5648 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5649 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5650 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5651 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5652 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5653 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
5654 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5655 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5656 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5657                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
5658                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5659                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
5660 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5661 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5662                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5663                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5664                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5665                                die "ERROR: libopenjpeg not found"; }
5666 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5667 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5668 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5669 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5670 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5671 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5672 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5673                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5674 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5675 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5676 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5677 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5678 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5679 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5680 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5681                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5682                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5683 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5684 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5685 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5686 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5687
5688 enabled libvpx            && {
5689     enabled libvpx_vp8_decoder && {
5690         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5691             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5692                 die "ERROR: libvpx decoder version must be >=0.9.1";
5693     }
5694     enabled libvpx_vp8_encoder && {
5695         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5696             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5697                 die "ERROR: libvpx encoder version must be >=0.9.7";
5698     }
5699     enabled libvpx_vp9_decoder && {
5700         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5701             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5702                 disable libvpx_vp9_decoder;
5703     }
5704     enabled libvpx_vp9_encoder && {
5705         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5706             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5707                 disable libvpx_vp9_encoder;
5708     }
5709     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5710         die "libvpx enabled but no supported decoders found"
5711     fi
5712 }
5713
5714 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5715 enabled libwebp           && {
5716     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5717     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5718 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5719                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5720                                  warn "using libx264 without pkg-config"; } } &&
5721                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5722                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5723                              { check_cpp_condition x264.h "X264_MPEG2" &&
5724                                enable libx262; }
5725 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5726                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||
5727                                die "ERROR: libx265 version must be >= 68."; }
5728 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5729 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5730 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5731 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5732 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
5733                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
5734                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
5735 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
5736 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5737                                 { ! enabled cross_compile && {
5738                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5739                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5740                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5741                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5742                                die "ERROR: mmal not found"; }
5743 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
5744
5745 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5746 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5747                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
5748                                die "ERROR: NVENC API version 5 or older is not supported"; } &&
5749                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5750 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5751                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5752                                die "ERROR: openal not found"; } &&
5753                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5754                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5755 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5756                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5757                                die "ERROR: opencl not found"; } &&
5758                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5759                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5760                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5761 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5762                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5763                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5764                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5765                                die "ERROR: opengl not found."
5766                              }
5767 enabled omx_rpi && enable omx
5768 enabled omx               && { check_header OMX_Core.h ||
5769                                 { ! enabled cross_compile && enabled omx_rpi && {
5770                                     add_cflags -isystem/opt/vc/include/IL ; }
5771                                 check_header OMX_Core.h ; } ||
5772                                die "ERROR: OpenMAX IL headers not found"; }
5773 enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||
5774                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5775                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5776                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5777                                die "ERROR: openssl not found"; }
5778 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5779
5780 # libdc1394 check
5781 if enabled libdc1394; then
5782     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5783         enable libdc1394_2; } ||
5784     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5785         enable libdc1394_1; } ||
5786     die "ERROR: No version of libdc1394 found "
5787 fi
5788
5789 if enabled gcrypt; then
5790     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5791     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5792         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5793         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5794         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5795             die "ERROR: gcrypt not found"
5796         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5797     else
5798         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5799     fi
5800 fi
5801
5802 if ! disabled sdl; then
5803     SDL_CONFIG="${cross_prefix}sdl-config"
5804     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5805         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5806         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5807         enable sdl
5808     else
5809         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5810             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5811             sdl_libs=$("${SDL_CONFIG}" --libs)
5812             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5813             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5814             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5815             enable sdl
5816         elif enabled sdl ; then
5817             die "ERROR: SDL not found"
5818         else
5819             disable sdl
5820         fi
5821     fi
5822     if test $target_os = "mingw32"; then
5823         sdl_libs="$sdl_libs -mconsole"
5824     fi
5825 fi
5826 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5827
5828 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5829     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5830     enable securetransport; }
5831
5832 disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
5833                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }
5834
5835 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5836 enabled makeinfo \
5837     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5838     && enable makeinfo_html || disable makeinfo_html
5839 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5840 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5841 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5842 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5843
5844 check_header linux/fb.h
5845 check_header linux/videodev.h
5846 check_header linux/videodev2.h
5847 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5848
5849 check_header sys/videoio.h
5850 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5851
5852 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5853 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5854 # w32api 3.12 had it defined wrong
5855 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5856
5857 check_type "dshow.h" IBaseFilter
5858
5859 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5860 { check_header dev/bktr/ioctl_meteor.h &&
5861   check_header dev/bktr/ioctl_bt848.h; } ||
5862 { check_header machine/ioctl_meteor.h &&
5863   check_header machine/ioctl_bt848.h; } ||
5864 { check_header dev/video/meteor/ioctl_meteor.h &&
5865   check_header dev/video/bktr/ioctl_bt848.h; } ||
5866 check_header dev/ic/bt8xx.h
5867
5868 check_header sndio.h
5869 if check_struct sys/soundcard.h audio_buf_info bytes; then
5870     enable_safe sys/soundcard.h
5871 else
5872     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5873     #include <sys/soundcard.h>
5874     audio_buf_info abc;
5875 EOF
5876 fi
5877 check_header soundcard.h
5878
5879 enabled_any alsa_indev alsa_outdev &&
5880     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5881
5882 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
5883     check_func jack_port_get_latency_range -ljack
5884
5885 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5886
5887 if enabled libcdio; then
5888     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5889     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5890     die "ERROR: No usable libcdio/cdparanoia found"
5891 fi
5892
5893 enabled xlib &&
5894     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5895
5896 if ! disabled libxcb; then
5897     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5898         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5899     } && disable x11grab && enable libxcb
5900
5901 if enabled libxcb; then
5902     disabled libxcb_shm || {
5903         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5904             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5905         } && check_header sys/shm.h && enable libxcb_shm; }
5906
5907     disabled libxcb_xfixes || {
5908         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5909             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5910         } && enable libxcb_xfixes; }
5911
5912     disabled libxcb_shape || {
5913         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5914             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5915         } && enable libxcb_shape; }
5916
5917     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5918     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5919 fi
5920 fi
5921
5922 if enabled x11grab; then
5923     enabled xlib || die "ERROR: Xlib not found"
5924     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5925     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5926 fi
5927
5928 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5929
5930 enabled dxva2api_h &&
5931     check_cc <<EOF && enable dxva2api_cobj
5932 #define _WIN32_WINNT 0x0600
5933 #define COBJMACROS
5934 #include <windows.h>
5935 #include <d3d9.h>
5936 #include <dxva2api.h>
5937 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5938 EOF
5939
5940 enabled vaapi &&
5941     check_lib va/va.h vaInitialize -lva ||
5942     disable vaapi
5943
5944 enabled vaapi &&
5945     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
5946     disable vaapi
5947
5948 if enabled vaapi ; then
5949     enabled xlib &&
5950     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5951     enable vaapi_x11
5952
5953     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
5954     enable vaapi_drm
5955 fi
5956
5957 enabled vdpau &&
5958     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5959     disable vdpau
5960
5961 enabled vdpau && enabled xlib &&
5962     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5963     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5964     enable vdpau_x11
5965
5966 # Funny iconv installations are not unusual, so check it after all flags have been set
5967 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5968
5969 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5970
5971 # add some useful compiler flags if supported
5972 check_cflags -Wdeclaration-after-statement
5973 check_cflags -Wall
5974 check_cflags -Wdisabled-optimization
5975 check_cflags -Wpointer-arith
5976 check_cflags -Wredundant-decls
5977 check_cflags -Wwrite-strings
5978 check_cflags -Wtype-limits
5979 check_cflags -Wundef
5980 check_cflags -Wmissing-prototypes
5981 check_cflags -Wno-pointer-to-int-cast
5982 check_cflags -Wstrict-prototypes
5983 check_cflags -Wempty-body
5984 enabled extra_warnings && check_cflags -Winline
5985 enabled extra_warnings && check_cflags -Wcast-qual
5986
5987 check_disable_warning(){
5988     warning_flag=-W${1#-Wno-}
5989     test_cflags $warning_flag && add_cflags $1
5990 }
5991
5992 check_disable_warning -Wno-parentheses
5993 check_disable_warning -Wno-switch
5994 check_disable_warning -Wno-format-zero-length
5995 check_disable_warning -Wno-pointer-sign
5996 check_disable_warning -Wno-unused-const-variable
5997
5998 # add some linker flags
5999 check_ldflags -Wl,--warn-common
6000 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6001 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
6002 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
6003 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6004
6005 # add some strip flags
6006 # -wN '..@*' is more selective than -x, but not available everywhere.
6007 check_stripflags -wN \'..@*\' || check_stripflags -x
6008
6009 enabled neon_clobber_test &&
6010     check_ldflags -Wl,--wrap,avcodec_open2              \
6011                   -Wl,--wrap,avcodec_decode_audio4      \
6012                   -Wl,--wrap,avcodec_decode_video2      \
6013                   -Wl,--wrap,avcodec_decode_subtitle2   \
6014                   -Wl,--wrap,avcodec_encode_audio2      \
6015                   -Wl,--wrap,avcodec_encode_video2      \
6016                   -Wl,--wrap,avcodec_encode_subtitle    \
6017                   -Wl,--wrap,swr_convert                \
6018                   -Wl,--wrap,avresample_convert ||
6019     disable neon_clobber_test
6020
6021 enabled xmm_clobber_test &&
6022     check_ldflags -Wl,--wrap,avcodec_open2              \
6023                   -Wl,--wrap,avcodec_decode_audio4      \
6024                   -Wl,--wrap,avcodec_decode_video2      \
6025                   -Wl,--wrap,avcodec_decode_subtitle2   \
6026                   -Wl,--wrap,avcodec_encode_audio2      \
6027                   -Wl,--wrap,avcodec_encode_video2      \
6028                   -Wl,--wrap,avcodec_encode_subtitle    \
6029                   -Wl,--wrap,swr_convert                \
6030                   -Wl,--wrap,avresample_convert         \
6031                   -Wl,--wrap,sws_scale ||
6032     disable xmm_clobber_test
6033
6034 echo "X { local: *; };" > $TMPV
6035 if test_ldflags -Wl,--version-script,$TMPV; then
6036     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
6037 elif test_ldflags -Wl,-M,$TMPV; then
6038     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
6039 fi
6040
6041 check_cc <<EOF && enable symver_asm_label
6042 void ff_foo(void) __asm__ ("av_foo@VERSION");
6043 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6044 EOF
6045     check_cc <<EOF && enable symver_gnu_asm
6046 __asm__(".symver ff_foo,av_foo@VERSION");
6047 void ff_foo(void) {}
6048 EOF
6049
6050 if [ -z "$optflags" ]; then
6051     if enabled small; then
6052         optflags=$cflags_size
6053     elif enabled optimizations; then
6054         optflags=$cflags_speed
6055     else
6056         optflags=$cflags_noopt
6057     fi
6058 fi
6059
6060 check_optflags(){
6061     check_cflags "$@"
6062     enabled lto && check_ldflags "$@"
6063 }
6064
6065
6066 if enabled lto; then
6067     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6068     check_cflags  -flto
6069     check_ldflags -flto $cpuflags
6070     disable inline_asm_direct_symbol_refs
6071 fi
6072
6073 check_optflags $optflags
6074 check_optflags -fno-math-errno
6075 check_optflags -fno-signed-zeros
6076
6077 enabled ftrapv && check_cflags -ftrapv
6078
6079 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6080 int x;
6081 EOF
6082
6083
6084 if enabled icc; then
6085     # Just warnings, no remarks
6086     check_cflags -w1
6087     # -wd: Disable following warnings
6088     # 144, 167, 556: -Wno-pointer-sign
6089     # 188: enumerated type mixed with another type
6090     # 1292: attribute "foo" ignored
6091     # 1419: external declaration in primary source file
6092     # 10006: ignoring unknown option -fno-signed-zeros
6093     # 10148: ignoring unknown option -Wno-parentheses
6094     # 10156: ignoring option '-W'; no argument required
6095     # 13200: No EMMS instruction before call to function
6096     # 13203: No EMMS instruction before return from function
6097     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6098     # 11030: Warning unknown option --as-needed
6099     # 10156: ignoring option '-export'; no argument required
6100     check_ldflags -wd10156,11030
6101     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6102     enable ebp_available
6103     # The test above does not test linking
6104     enabled lto && disable symver_asm_label
6105     if enabled x86_32; then
6106         icc_version=$($cc -dumpversion)
6107         test ${icc_version%%.*} -ge 11 &&
6108             check_cflags -falign-stack=maintain-16-byte ||
6109             disable aligned_stack
6110     fi
6111 elif enabled ccc; then
6112     # disable some annoying warnings
6113     add_cflags -msg_disable bitnotint
6114     add_cflags -msg_disable mixfuncvoid
6115     add_cflags -msg_disable nonstandcast
6116     add_cflags -msg_disable unsupieee
6117 elif enabled gcc; then
6118     case $gcc_basever in
6119         4.9*) enabled x86 || check_optflags -fno-tree-vectorize ;;
6120         4.*)                 check_optflags -fno-tree-vectorize ;;
6121         *)    enabled x86 || check_optflags -fno-tree-vectorize ;;
6122     esac
6123     check_cflags -Werror=format-security
6124     check_cflags -Werror=implicit-function-declaration
6125     check_cflags -Werror=missing-prototypes
6126     check_cflags -Werror=return-type
6127     check_cflags -Werror=vla
6128     check_cflags -Wformat
6129     check_cflags -fdiagnostics-color=auto
6130     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6131 elif enabled llvm_gcc; then
6132     check_cflags -mllvm -stack-alignment=16
6133 elif enabled clang; then
6134     check_cflags -mllvm -stack-alignment=16
6135     check_cflags -Qunused-arguments
6136     check_cflags -Werror=implicit-function-declaration
6137     check_cflags -Werror=missing-prototypes
6138     check_cflags -Werror=return-type
6139 elif enabled cparser; then
6140     add_cflags -Wno-missing-variable-declarations
6141     add_cflags -Wno-empty-statement
6142 elif enabled armcc; then
6143     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6144     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6145     # 2523: use of inline assembly is deprecated
6146     add_cflags -W${armcc_opt},--diag_suppress=2523
6147     add_cflags -W${armcc_opt},--diag_suppress=1207
6148     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6149     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6150     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6151     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6152 elif enabled tms470; then
6153     add_cflags -pds=824 -pds=837
6154     disable inline_asm
6155 elif enabled pathscale; then
6156     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6157 elif enabled_any msvc icl; then
6158     enabled x86_32 && disable aligned_stack
6159     enabled_all x86_32 debug && add_cflags -Oy-
6160     enabled debug && add_ldflags -debug
6161     enable pragma_deprecated
6162     if enabled icl; then
6163         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6164         # (correctly) on icl 13.x.
6165         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6166             add_cflags -Qansi-alias
6167         # Some inline asm is not compilable in debug
6168         if enabled debug; then
6169             disable ebp_available
6170             disable ebx_available
6171         fi
6172     fi
6173     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6174     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6175     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6176     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6177     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6178     # MSVC 2013 and newer can handle it fine.
6179     # If this declspec fails, force including stdlib.h before the restrict redefinition
6180     # happens in config.h.
6181     if [ $_restrict != restrict ]; then
6182         check_cc <<EOF || add_cflags -FIstdlib.h
6183 __declspec($_restrict) void* foo(int);
6184 EOF
6185     fi
6186     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
6187 fi
6188
6189 for pfx in "" host_; do
6190     varname=${pfx%_}cc_type
6191     eval "type=\$$varname"
6192     if [ $type = "msvc" ]; then
6193         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6194 static inline int foo(int a) { return a; }
6195 EOF
6196     fi
6197 done
6198
6199 case $as_type in
6200     clang)
6201         add_asflags -Qunused-arguments
6202     ;;
6203 esac
6204
6205 case $ld_type in
6206     clang)
6207         check_ldflags -Qunused-arguments
6208     ;;
6209 esac
6210
6211 case $target_os in
6212     osf1)
6213         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6214     ;;
6215     plan9)
6216         add_cppflags -Dmain=plan9_main
6217     ;;
6218 esac
6219
6220 enable frame_thread_encoder
6221
6222 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6223
6224 check_deps $CONFIG_LIST       \
6225            $CONFIG_EXTRA      \
6226            $HAVE_LIST         \
6227            $ALL_COMPONENTS    \
6228
6229 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"
6230
6231
6232 if test $target_os = "haiku"; then
6233     disable memalign
6234     disable posix_memalign
6235 fi
6236
6237 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6238     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6239     enable dxva2_lib
6240
6241 ! enabled_any memalign posix_memalign aligned_malloc &&
6242     enabled simd_align_16 && enable memalign_hack
6243
6244 # add_dep lib dep
6245 # -> enable ${lib}_deps_${dep}
6246 # -> add $dep to ${lib}_deps only once
6247 add_dep() {
6248     lib=$1
6249     dep=$2
6250     enabled "${lib}_deps_${dep}" && return 0
6251     enable  "${lib}_deps_${dep}"
6252     prepend "${lib}_deps" $dep
6253 }
6254
6255 # merge deps lib components
6256 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6257 merge_deps() {
6258     lib=$1
6259     shift
6260     for comp in $*; do
6261         enabled $comp || continue
6262         eval "dep=\"\$${comp}_deps\""
6263         for d in $dep; do
6264             add_dep $lib $d
6265         done
6266     done
6267 }
6268
6269 merge_deps libavfilter $FILTER_LIST
6270
6271 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6272
6273 for thread in $THREADS_LIST; do
6274     if enabled $thread; then
6275         test -n "$thread_type" &&
6276             die "ERROR: Only one thread type must be selected." ||
6277             thread_type="$thread"
6278     fi
6279 done
6280
6281 enabled zlib && add_cppflags -DZLIB_CONST
6282
6283 # conditional library dependencies, in linking order
6284 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6285 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6286 enabled aresample_filter    && prepend avfilter_deps "swresample"
6287 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6288 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6289 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6290 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6291 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6292 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6293 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6294 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6295 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6296 enabled pan_filter          && prepend avfilter_deps "swresample"
6297 enabled pp_filter           && prepend avfilter_deps "postproc"
6298 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6299 enabled resample_filter && prepend avfilter_deps "avresample"
6300 enabled sab_filter          && prepend avfilter_deps "swscale"
6301 enabled scale_filter    && prepend avfilter_deps "swscale"
6302 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6303 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6304 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6305 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6306 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6307 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6308 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6309 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6310 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6311
6312 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6313
6314 enabled opus_decoder    && prepend avcodec_deps "swresample"
6315
6316 expand_deps(){
6317     lib_deps=${1}_deps
6318     eval "deps=\$$lib_deps"
6319     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6320     unique $lib_deps
6321 }
6322
6323 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6324 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6325
6326 map 'expand_deps $v' $LIBRARY_LIST
6327
6328 echo "install prefix            $prefix"
6329 echo "source path               $source_path"
6330 echo "C compiler                $cc"
6331 echo "C library                 $libc_type"
6332 if test "$host_cc" != "$cc"; then
6333     echo "host C compiler           $host_cc"
6334     echo "host C library            $host_libc_type"
6335 fi
6336 echo "ARCH                      $arch ($cpu)"
6337 if test "$build_suffix" != ""; then
6338     echo "build suffix              $build_suffix"
6339 fi
6340 if test "$progs_suffix" != ""; then
6341     echo "progs suffix              $progs_suffix"
6342 fi
6343 if test "$extra_version" != ""; then
6344     echo "version string suffix     $extra_version"
6345 fi
6346 echo "big-endian                ${bigendian-no}"
6347 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6348 if enabled x86; then
6349     echo "${yasmexe}                      ${yasm-no}"
6350     echo "MMX enabled               ${mmx-no}"
6351     echo "MMXEXT enabled            ${mmxext-no}"
6352     echo "3DNow! enabled            ${amd3dnow-no}"
6353     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6354     echo "SSE enabled               ${sse-no}"
6355     echo "SSSE3 enabled             ${ssse3-no}"
6356     echo "AESNI enabled             ${aesni-no}"
6357     echo "AVX enabled               ${avx-no}"
6358     echo "XOP enabled               ${xop-no}"
6359     echo "FMA3 enabled              ${fma3-no}"
6360     echo "FMA4 enabled              ${fma4-no}"
6361     echo "i686 features enabled     ${i686-no}"
6362     echo "CMOV is fast              ${fast_cmov-no}"
6363     echo "EBX available             ${ebx_available-no}"
6364     echo "EBP available             ${ebp_available-no}"
6365 fi
6366 if enabled aarch64; then
6367     echo "NEON enabled              ${neon-no}"
6368     echo "VFP enabled               ${vfp-no}"
6369 fi
6370 if enabled arm; then
6371     echo "ARMv5TE enabled           ${armv5te-no}"
6372     echo "ARMv6 enabled             ${armv6-no}"
6373     echo "ARMv6T2 enabled           ${armv6t2-no}"
6374     echo "VFP enabled               ${vfp-no}"
6375     echo "NEON enabled              ${neon-no}"
6376     echo "THUMB enabled             ${thumb-no}"
6377 fi
6378 if enabled mips; then
6379     echo "MIPS FPU enabled          ${mipsfpu-no}"
6380     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6381     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6382     echo "MIPS MSA enabled          ${msa-no}"
6383     echo "LOONGSON MMI enabled      ${mmi-no}"
6384 fi
6385 if enabled ppc; then
6386     echo "AltiVec enabled           ${altivec-no}"
6387     echo "VSX enabled               ${vsx-no}"
6388     echo "POWER8 enabled            ${power8-no}"
6389     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6390     echo "dcbzl available           ${dcbzl-no}"
6391 fi
6392 echo "debug symbols             ${debug-no}"
6393 echo "strip symbols             ${stripping-no}"
6394 echo "optimize for size         ${small-no}"
6395 echo "optimizations             ${optimizations-no}"
6396 echo "static                    ${static-no}"
6397 echo "shared                    ${shared-no}"
6398 echo "postprocessing support    ${postproc-no}"
6399 echo "new filter support        ${avfilter-no}"
6400 echo "network support           ${network-no}"
6401 echo "threading support         ${thread_type-no}"
6402 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6403 echo "SDL support               ${sdl-no}"
6404 echo "opencl enabled            ${opencl-no}"
6405 echo "JNI support               ${jni-no}"
6406 echo "texi2html enabled         ${texi2html-no}"
6407 echo "perl enabled              ${perl-no}"
6408 echo "pod2man enabled           ${pod2man-no}"
6409 echo "makeinfo enabled          ${makeinfo-no}"
6410 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6411 test -n "$random_seed" &&
6412     echo "random seed               ${random_seed}"
6413 echo
6414
6415 echo "Enabled programs:"
6416 print_enabled '' $PROGRAM_LIST | print_in_columns
6417 echo
6418
6419 echo "External libraries:"
6420 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6421 echo
6422
6423 echo "Libraries:"
6424 print_enabled '' $LIBRARY_LIST | print_in_columns
6425 echo
6426
6427 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6428     echo "Enabled ${type}s:"
6429     eval list=\$$(toupper $type)_LIST
6430     print_enabled '_*' $list | print_in_columns
6431     echo
6432 done
6433
6434 echo "Enabled Hardware-accelerated codecs:"
6435 print_enabled '' $HW_CODECS_LIST | print_in_columns
6436 echo
6437
6438 license="LGPL version 2.1 or later"
6439 if enabled nonfree; then
6440     license="nonfree and unredistributable"
6441 elif enabled gplv3; then
6442     license="GPL version 3 or later"
6443 elif enabled lgplv3; then
6444     license="LGPL version 3 or later"
6445 elif enabled gpl; then
6446     license="GPL version 2 or later"
6447 fi
6448
6449 echo "License: $license"
6450
6451 echo "Creating config.mak, config.h, and doc/config.texi..."
6452
6453 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6454
6455 enabled stripping || strip="echo skipping strip"
6456
6457 config_files="$TMPH config.mak doc/config.texi"
6458
6459 cat > config.mak <<EOF
6460 # Automatically generated by configure - do not modify!
6461 ifndef FFMPEG_CONFIG_MAK
6462 FFMPEG_CONFIG_MAK=1
6463 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6464 prefix=$prefix
6465 LIBDIR=\$(DESTDIR)$libdir
6466 SHLIBDIR=\$(DESTDIR)$shlibdir
6467 INCDIR=\$(DESTDIR)$incdir
6468 BINDIR=\$(DESTDIR)$bindir
6469 DATADIR=\$(DESTDIR)$datadir
6470 DOCDIR=\$(DESTDIR)$docdir
6471 MANDIR=\$(DESTDIR)$mandir
6472 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6473 INSTALL_NAME_DIR=$install_name_dir
6474 SRC_PATH=$source_path
6475 SRC_LINK=$source_link
6476 ifndef MAIN_MAKEFILE
6477 SRC_PATH:=\$(SRC_PATH:.%=..%)
6478 endif
6479 CC_IDENT=$cc_ident
6480 ARCH=$arch
6481 INTRINSICS=$intrinsics
6482 CC=$cc
6483 CXX=$cxx
6484 AS=$as
6485 OBJCC=$objcc
6486 LD=$ld
6487 DEPCC=$dep_cc
6488 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6489 DEPAS=$as
6490 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6491 YASM=$yasmexe
6492 DEPYASM=$yasmexe
6493 AR=$ar
6494 ARFLAGS=$arflags
6495 AR_O=$ar_o
6496 RANLIB=$ranlib
6497 STRIP=$strip
6498 CP=cp -p
6499 LN_S=$ln_s
6500 CPPFLAGS=$CPPFLAGS
6501 CFLAGS=$CFLAGS
6502 CXXFLAGS=$CXXFLAGS
6503 OBJCFLAGS=$OBJCFLAGS
6504 ASFLAGS=$ASFLAGS
6505 AS_C=$AS_C
6506 AS_O=$AS_O
6507 OBJCC_C=$OBJCC_C
6508 OBJCC_E=$OBJCC_E
6509 OBJCC_O=$OBJCC_O
6510 CC_C=$CC_C
6511 CC_E=$CC_E
6512 CC_O=$CC_O
6513 CXX_C=$CXX_C
6514 CXX_O=$CXX_O
6515 LD_O=$LD_O
6516 LD_LIB=$LD_LIB
6517 LD_PATH=$LD_PATH
6518 DLLTOOL=$dlltool
6519 WINDRES=$windres
6520 DEPWINDRES=$dep_cc
6521 DOXYGEN=$doxygen
6522 LDFLAGS=$LDFLAGS
6523 LDEXEFLAGS=$LDEXEFLAGS
6524 LDLIBFLAGS=$LDLIBFLAGS
6525 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6526 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6527 YASMFLAGS=$YASMFLAGS
6528 BUILDSUF=$build_suffix
6529 PROGSSUF=$progs_suffix
6530 FULLNAME=$FULLNAME
6531 LIBPREF=$LIBPREF
6532 LIBSUF=$LIBSUF
6533 LIBNAME=$LIBNAME
6534 SLIBPREF=$SLIBPREF
6535 SLIBSUF=$SLIBSUF
6536 EXESUF=$EXESUF
6537 EXTRA_VERSION=$extra_version
6538 CCDEP=$CCDEP
6539 CXXDEP=$CXXDEP
6540 CCDEP_FLAGS=$CCDEP_FLAGS
6541 ASDEP=$ASDEP
6542 ASDEP_FLAGS=$ASDEP_FLAGS
6543 CC_DEPFLAGS=$CC_DEPFLAGS
6544 AS_DEPFLAGS=$AS_DEPFLAGS
6545 HOSTCC=$host_cc
6546 HOSTLD=$host_ld
6547 HOSTCFLAGS=$host_cflags
6548 HOSTCPPFLAGS=$host_cppflags
6549 HOSTEXESUF=$HOSTEXESUF
6550 HOSTLDFLAGS=$host_ldflags
6551 HOSTLIBS=$host_libs
6552 DEPHOSTCC=$host_cc
6553 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6554 HOSTCCDEP=$HOSTCCDEP
6555 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6556 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6557 HOSTCC_C=$HOSTCC_C
6558 HOSTCC_O=$HOSTCC_O
6559 HOSTLD_O=$HOSTLD_O
6560 TARGET_EXEC=$target_exec $target_exec_args
6561 TARGET_PATH=$target_path
6562 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6563 CFLAGS-ffplay=$sdl_cflags
6564 ZLIB=$($ldflags_filter -lz)
6565 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6566 EXTRALIBS=$extralibs
6567 COMPAT_OBJS=$compat_objs
6568 EXEOBJS=$exeobjs
6569 INSTALL=$install
6570 LIBTARGET=${LIBTARGET}
6571 SLIBNAME=${SLIBNAME}
6572 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6573 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6574 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6575 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6576 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6577 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6578 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6579 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6580 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6581 NOREDZONE_FLAGS=$noredzone_flags
6582 EOF
6583
6584 get_version(){
6585     lcname=lib${1}
6586     name=$(toupper $lcname)
6587     file=$source_path/$lcname/version.h
6588     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6589     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6590     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6591     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6592     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6593     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6594 }
6595
6596 map 'get_version $v' $LIBRARY_LIST
6597
6598 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6599
6600 print_program_libs(){
6601     eval "program_libs=\$${1}_libs"
6602     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6603 }
6604
6605 map 'print_program_libs $v' $PROGRAM_LIST
6606
6607 cat > $TMPH <<EOF
6608 /* Automatically generated by configure - do not modify! */
6609 #ifndef FFMPEG_CONFIG_H
6610 #define FFMPEG_CONFIG_H
6611 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6612 #define FFMPEG_LICENSE "$(c_escape $license)"
6613 #define CONFIG_THIS_YEAR 2016
6614 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6615 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6616 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6617 #define av_restrict $_restrict
6618 #define EXTERN_PREFIX "${extern_prefix}"
6619 #define EXTERN_ASM ${extern_prefix}
6620 #define BUILDSUF "$build_suffix"
6621 #define SLIBSUF "$SLIBSUF"
6622 #define HAVE_MMX2 HAVE_MMXEXT
6623 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6624 EOF
6625
6626 test -n "$assert_level" &&
6627     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6628
6629 test -n "$malloc_prefix" &&
6630     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6631
6632 if enabled yasm; then
6633     append config_files $TMPASM
6634     printf '' >$TMPASM
6635 fi
6636
6637 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6638
6639
6640 mkdir -p doc
6641 mkdir -p tests
6642 mkdir -p tests/api
6643 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6644
6645 print_config ARCH_   "$config_files" $ARCH_LIST
6646 print_config HAVE_   "$config_files" $HAVE_LIST
6647 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6648                                      $CONFIG_EXTRA      \
6649                                      $ALL_COMPONENTS    \
6650
6651 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6652 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6653
6654 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6655 cp_if_changed $TMPH config.h
6656 touch .config
6657
6658 enabled yasm && cp_if_changed $TMPASM config.asm
6659
6660 cat > $TMPH <<EOF
6661 /* Generated by ffconf */
6662 #ifndef AVUTIL_AVCONFIG_H
6663 #define AVUTIL_AVCONFIG_H
6664 EOF
6665
6666 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6667
6668 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6669
6670 cp_if_changed $TMPH libavutil/avconfig.h
6671
6672 if test -n "$WARNINGS"; then
6673     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6674     enabled fatal_warnings && exit 1
6675 fi
6676
6677 # generate the lists of enabled components
6678 print_enabled_components(){
6679     file=$1
6680     struct_name=$2
6681     name=$3
6682     shift 3
6683     echo "static const $struct_name *$name[] = {" > $TMPH
6684     for c in $*; do
6685         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
6686     done
6687     echo "    NULL };" >> $TMPH
6688     cp_if_changed $TMPH $file
6689 }
6690
6691 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
6692 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
6693
6694 # build pkg-config files
6695
6696 lib_version(){
6697     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6698 }
6699
6700 pkgconfig_generate(){
6701     name=$1
6702     shortname=${name#lib}${build_suffix}
6703     comment=$2
6704     version=$3
6705     libs=$4
6706     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6707     requires=${requires%, }
6708     enabled ${name#lib} || return 0
6709     mkdir -p $name
6710     cat <<EOF > $name/$name${build_suffix}.pc
6711 prefix=$prefix
6712 exec_prefix=\${prefix}
6713 libdir=$libdir
6714 includedir=$incdir
6715
6716 Name: $name
6717 Description: $comment
6718 Version: $version
6719 Requires: $(enabled shared || echo $requires)
6720 Requires.private: $(enabled shared && echo $requires)
6721 Conflicts:
6722 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6723 Libs.private: $(enabled shared && echo $libs)
6724 Cflags: -I\${includedir}
6725 EOF
6726
6727 mkdir -p doc/examples/pc-uninstalled
6728 includedir=${source_path}
6729 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6730     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6731 prefix=
6732 exec_prefix=
6733 libdir=\${pcfiledir}/../../../$name
6734 includedir=${includedir}
6735
6736 Name: $name
6737 Description: $comment
6738 Version: $version
6739 Requires: $requires
6740 Conflicts:
6741 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6742 Cflags: -I\${includedir}
6743 EOF
6744 }
6745
6746 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6747 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6748 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6749 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6750 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6751 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6752 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6753 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6754 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"