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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  91   --enable-rpath           use rpath to allow installing libraries in paths
  92                            not part of the dynamic linker search path
  93                            use rpath when linking programs [USE WITH CARE]
  94   --install-name-dir=DIR   Darwin directory name for installed targets
  95
  96 Licensing options:
  97   --enable-gpl             allow use of GPL code, the resulting libs
  98                            and binaries will be under GPL [no]
  99   --enable-version3        upgrade (L)GPL to version 3 [no]
 100   --enable-nonfree         allow use of nonfree code, the resulting libs
 101                            and binaries will be unredistributable [no]
 102
 103 Configuration options:
 104   --disable-static         do not build static libraries [no]
 105   --enable-shared          build shared libraries [no]
 106   --enable-small           optimize for size instead of speed
 107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 108   --enable-gray            enable full grayscale support (slower color)
 109   --disable-swscale-alpha  disable alpha channel support in swscale
 110   --disable-all            disable building components, libraries and programs
 111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 112   --enable-raise-major     increase major version numbers in sonames [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119   --disable-ffserver       disable ffserver build
 120
 121 Documentation options:
 122   --disable-doc            do not build documentation
 123   --disable-htmlpages      do not build HTML documentation pages
 124   --disable-manpages       do not build man documentation pages
 125   --disable-podpages       do not build POD documentation pages
 126   --disable-txtpages       do not build text documentation pages
 127
 128 Component options:
 129   --disable-avdevice       disable libavdevice build
 130   --disable-avcodec        disable libavcodec build
 131   --disable-avformat       disable libavformat build
 132   --disable-swresample     disable libswresample build
 133   --disable-swscale        disable libswscale build
 134   --disable-postproc       disable libpostproc build
 135   --disable-avfilter       disable libavfilter build
 136   --enable-avresample      enable libavresample build [no]
 137   --disable-pthreads       disable pthreads [autodetect]
 138   --disable-w32threads     disable Win32 threads [autodetect]
 139   --disable-os2threads     disable OS/2 threads [autodetect]
 140   --disable-network        disable network support [no]
 141   --disable-dct            disable DCT code
 142   --disable-dwt            disable DWT code
 143   --disable-error-resilience disable error resilience code
 144   --disable-lsp            disable LSP code
 145   --disable-lzo            disable LZO decoder code
 146   --disable-mdct           disable MDCT code
 147   --disable-rdft           disable RDFT code
 148   --disable-fft            disable FFT code
 149   --disable-faan           disable floating point AAN (I)DCT code
 150   --disable-pixelutils     disable pixel utils in libavutil
 151
 152 Individual component options:
 153   --disable-everything     disable all components listed below
 154   --disable-encoder=NAME   disable encoder NAME
 155   --enable-encoder=NAME    enable encoder NAME
 156   --disable-encoders       disable all encoders
 157   --disable-decoder=NAME   disable decoder NAME
 158   --enable-decoder=NAME    enable decoder NAME
 159   --disable-decoders       disable all decoders
 160   --disable-hwaccel=NAME   disable hwaccel NAME
 161   --enable-hwaccel=NAME    enable hwaccel NAME
 162   --disable-hwaccels       disable all hwaccels
 163   --disable-muxer=NAME     disable muxer NAME
 164   --enable-muxer=NAME      enable muxer NAME
 165   --disable-muxers         disable all muxers
 166   --disable-demuxer=NAME   disable demuxer NAME
 167   --enable-demuxer=NAME    enable demuxer NAME
 168   --disable-demuxers       disable all demuxers
 169   --enable-parser=NAME     enable parser NAME
 170   --disable-parser=NAME    disable parser NAME
 171   --disable-parsers        disable all parsers
 172   --enable-bsf=NAME        enable bitstream filter NAME
 173   --disable-bsf=NAME       disable bitstream filter NAME
 174   --disable-bsfs           disable all bitstream filters
 175   --enable-protocol=NAME   enable protocol NAME
 176   --disable-protocol=NAME  disable protocol NAME
 177   --disable-protocols      disable all protocols
 178   --enable-indev=NAME      enable input device NAME
 179   --disable-indev=NAME     disable input device NAME
 180   --disable-indevs         disable input devices
 181   --enable-outdev=NAME     enable output device NAME
 182   --disable-outdev=NAME    disable output device NAME
 183   --disable-outdevs        disable output devices
 184   --disable-devices        disable all devices
 185   --enable-filter=NAME     enable filter NAME
 186   --disable-filter=NAME    disable filter NAME
 187   --disable-filters        disable all filters
 188
 189 External library support:
 190
 191   Using any of the following switches will allow FFmpeg to link to the
 192   corresponding external library. All the components depending on that library
 193   will become enabled, if all their other dependencies are met and they are not
 194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 195   libwavpack and allow the libwavpack encoder to be built, unless it is
 196   specifically disabled with --disable-encoder=libwavpack.
 197
 198   Note that only the system libraries are auto-detected. All the other external
 199   libraries must be explicitly enabled.
 200
 201   Also note that the following help text describes the purpose of the libraries
 202   themselves, not all their features will necessarily be usable by FFmpeg.
 203
 204   --enable-avisynth        enable reading of AviSynth script files [no]
 205   --disable-bzlib          disable bzlib [autodetect]
 206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 207   --enable-frei0r          enable frei0r video filtering [no]
 208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 209                            if openssl, librtmp or gmp is not used [no]
 210   --enable-gmp             enable gmp, needed for rtmp(t)e support
 211                            if openssl or librtmp is not used [no]
 212   --enable-gnutls          enable gnutls, needed for https support
 213                            if openssl is not used [no]
 214   --disable-iconv          disable iconv [autodetect]
 215   --enable-jni             enable JNI support [no]
 216   --enable-ladspa          enable LADSPA audio filtering [no]
 217   --enable-libass          enable libass subtitles rendering,
 218                            needed for subtitles and ass filter [no]
 219   --enable-libbluray       enable BluRay reading using libbluray [no]
 220   --enable-libbs2b         enable bs2b DSP library [no]
 221   --enable-libcaca         enable textual display using libcaca [no]
 222   --enable-libcelt         enable CELT decoding via libcelt [no]
 223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 225                            and libraw1394 [no]
 226   --enable-libebur128      enable libebur128 for EBU R128 measurement,
 227                            needed for loudnorm filter [no]
 228   --enable-libfaac         enable AAC encoding via libfaac [no]
 229   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 230   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 231   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 232   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 233   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 234   --enable-libgme          enable Game Music Emu via libgme [no]
 235   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 236   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 237   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 238   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 239   --enable-libmodplug      enable ModPlug via libmodplug [no]
 240   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 241   --enable-libnut          enable NUT (de)muxing via libnut,
 242                            native (de)muxer exists [no]
 243   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 244   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 245   --enable-libopencv       enable video filtering via libopencv [no]
 246   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 247   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 248   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 249   --enable-libopus         enable Opus de/encoding via libopus [no]
 250   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 251   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 252   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 253   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 254   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 255   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 256   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 257   --enable-libsoxr         enable Include libsoxr resampling [no]
 258   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 259   --enable-libssh          enable SFTP protocol via libssh [no]
 260   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 261   --enable-libtheora       enable Theora encoding via libtheora [no]
 262   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 263   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 264   --enable-libvidstab      enable video stabilization using vid.stab [no]
 265   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 266   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 267                            native implementation exists [no]
 268   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 269   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 270   --enable-libwebp         enable WebP encoding via libwebp [no]
 271   --enable-libx264         enable H.264 encoding via x264 [no]
 272   --enable-libx265         enable HEVC encoding via x265 [no]
 273   --enable-libxavs         enable AVS encoding via xavs [no]
 274   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 275   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 276   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 277   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 278   --enable-libxvid         enable Xvid encoding via xvidcore,
 279                            native MPEG-4/Xvid encoder exists [no]
 280   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 281   --enable-libzmq          enable message passing via libzmq [no]
 282   --enable-libzvbi         enable teletext support via libzvbi [no]
 283   --disable-lzma           disable lzma [autodetect]
 284   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 285   --enable-mediacodec      enable Android MediaCodec support [no]
 286   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
 287   --enable-openal          enable OpenAL 1.1 capture support [no]
 288   --enable-opencl          enable OpenCL code
 289   --enable-opengl          enable OpenGL rendering [no]
 290   --enable-openssl         enable openssl, needed for https support
 291                            if gnutls is not used [no]
 292   --disable-schannel       disable SChannel SSP, needed for TLS support on
 293                            Windows if openssl and gnutls are not used [autodetect]
 294   --disable-sdl            disable sdl [autodetect]
 295   --disable-securetransport disable Secure Transport, needed for TLS support
 296                            on OSX if openssl and gnutls are not used [autodetect]
 297   --enable-x11grab         enable X11 grabbing (legacy) [no]
 298   --disable-xlib           disable xlib [autodetect]
 299   --disable-zlib           disable zlib [autodetect]
 300
 301   The following libraries provide various hardware acceleration features:
 302   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 303   --enable-cuda            enable dynamically linked Nvidia CUDA code [no]
 304   --enable-cuvid           enable Nvidia CUVID support [autodetect]
 305   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 306   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 307   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 308   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 309   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 310   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 311   --enable-omx             enable OpenMAX IL code [no]
 312   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 313   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 314   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
 315   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 316   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 317
 318 Toolchain options:
 319   --arch=ARCH              select architecture [$arch]
 320   --cpu=CPU                select the minimum required CPU (affects
 321                            instruction selection, may crash on older CPUs)
 322   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 323   --progs-suffix=SUFFIX    program name suffix []
 324   --enable-cross-compile   assume a cross-compiler is used
 325   --sysroot=PATH           root of cross-build tree
 326   --sysinclude=PATH        location of cross-build system headers
 327   --target-os=OS           compiler targets OS [$target_os]
 328   --target-exec=CMD        command to run executables on target
 329   --target-path=DIR        path to view of build directory on target
 330   --target-samples=DIR     path to samples directory on target
 331   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 332   --toolchain=NAME         set tool defaults according to NAME
 333   --nm=NM                  use nm tool NM [$nm_default]
 334   --ar=AR                  use archive tool AR [$ar_default]
 335   --as=AS                  use assembler AS [$as_default]
 336   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 337   --strip=STRIP            use strip tool STRIP [$strip_default]
 338   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 339   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 340   --cc=CC                  use C compiler CC [$cc_default]
 341   --cxx=CXX                use C compiler CXX [$cxx_default]
 342   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 343   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 344   --ld=LD                  use linker LD [$ld_default]
 345   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 346   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 347   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 348   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 349   --host-cc=HOSTCC         use host C compiler HOSTCC
 350   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 351   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 352   --host-ld=HOSTLD         use host linker HOSTLD
 353   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 354   --host-libs=HLIBS        use libs HLIBS when linking for host
 355   --host-os=OS             compiler host OS [$target_os]
 356   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 357   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 358   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 359   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 360   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 361   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 362   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 363   --extra-version=STRING   version string suffix []
 364   --optflags=OPTFLAGS      override optimization-related compiler flags
 365   --build-suffix=SUFFIX    library name suffix []
 366   --enable-pic             build position-independent code
 367   --enable-thumb           compile for Thumb instruction set
 368   --enable-lto             use link-time optimization
 369   --env="ENV=override"     override the environment variables
 370
 371 Advanced options (experts only):
 372   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 373   --custom-allocator=NAME  use a supported custom allocator
 374   --disable-symver         disable symbol versioning
 375   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 376   --disable-safe-bitstream-reader
 377                            disable buffer boundary checking in bitreaders
 378                            (faster, but may crash)
 379   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 380   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 381
 382 Optimization options (experts only):
 383   --disable-asm            disable all assembly optimizations
 384   --disable-altivec        disable AltiVec optimizations
 385   --disable-vsx            disable VSX optimizations
 386   --disable-power8         disable POWER8 optimizations
 387   --disable-amd3dnow       disable 3DNow! optimizations
 388   --disable-amd3dnowext    disable 3DNow! extended optimizations
 389   --disable-mmx            disable MMX optimizations
 390   --disable-mmxext         disable MMXEXT optimizations
 391   --disable-sse            disable SSE optimizations
 392   --disable-sse2           disable SSE2 optimizations
 393   --disable-sse3           disable SSE3 optimizations
 394   --disable-ssse3          disable SSSE3 optimizations
 395   --disable-sse4           disable SSE4 optimizations
 396   --disable-sse42          disable SSE4.2 optimizations
 397   --disable-avx            disable AVX optimizations
 398   --disable-xop            disable XOP optimizations
 399   --disable-fma3           disable FMA3 optimizations
 400   --disable-fma4           disable FMA4 optimizations
 401   --disable-avx2           disable AVX2 optimizations
 402   --disable-aesni          disable AESNI optimizations
 403   --disable-armv5te        disable armv5te optimizations
 404   --disable-armv6          disable armv6 optimizations
 405   --disable-armv6t2        disable armv6t2 optimizations
 406   --disable-vfp            disable VFP optimizations
 407   --disable-neon           disable NEON optimizations
 408   --disable-inline-asm     disable use of inline assembly
 409   --disable-yasm           disable use of nasm/yasm assembly
 410   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 411   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 412   --disable-msa            disable MSA optimizations
 413   --disable-mipsfpu        disable floating point MIPS optimizations
 414   --disable-mmi            disable Loongson SIMD optimizations
 415   --disable-fast-unaligned consider unaligned accesses slow
 416
 417 Developer options (useful when working on FFmpeg itself):
 418   --disable-debug          disable debugging symbols
 419   --enable-debug=LEVEL     set the debug level [$debuglevel]
 420   --disable-optimizations  disable compiler optimizations
 421   --enable-extra-warnings  enable more compiler warnings
 422   --disable-stripping      disable stripping of executables and shared libraries
 423   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 424                            2 causes a slowdown at runtime.
 425   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 426   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 427                            leaks and errors, using the specified valgrind binary.
 428                            Cannot be combined with --target-exec
 429   --enable-ftrapv          Trap arithmetic overflows
 430   --samples=PATH           location of test samples for FATE, if not set use
 431                            \$FATE_SAMPLES at make invocation time.
 432   --enable-neon-clobber-test check NEON registers for clobbering (should be
 433                            used only for debugging purposes)
 434   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 435                            should be used only for debugging purposes)
 436   --enable-random          randomly enable/disable components
 437   --disable-random
 438   --enable-random=LIST     randomly enable/disable specific components or
 439   --disable-random=LIST    component groups. LIST is a comma-separated list
 440                            of NAME[:PROB] entries where NAME is a component
 441                            (group) and PROB the probability associated with
 442                            NAME (default 0.5).
 443   --random-seed=VALUE      seed value for --enable/disable-random
 444   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 445                            (only applies to --disable-optimizations builds)
 446
 447 NOTE: Object files are built at the place where configure is launched.
 448 EOF
 449   exit 0
 450 }
 451
 452 quotes='""'
 453 if test -t 1 && which tput >/dev/null 2>&1; then
 454     ncolors=$(tput colors)
 455     if test -n "$ncolors" && test $ncolors -ge 8; then
 456         bold_color=$(tput bold)
 457         warn_color=$(tput setaf 3)
 458         error_color=$(tput setaf 1)
 459         reset_color=$(tput sgr0)
 460     fi
 461     # 72 used instead of 80 since that's the default of pr
 462     ncols=$(tput cols)
 463 fi
 464 : ${ncols:=72}
 465
 466 log(){
 467     echo "$@" >> $logfile
 468 }
 469
 470 log_file(){
 471     log BEGIN $1
 472     pr -n -t $1 >> $logfile
 473     log END $1
 474 }
 475
 476 warn(){
 477     log "WARNING: $*"
 478     WARNINGS="${WARNINGS}WARNING: $*\n"
 479 }
 480
 481 die(){
 482     log "$@"
 483     echo "$error_color$bold_color$@$reset_color"
 484     cat <<EOF
 485
 486 If you think configure made a mistake, make sure you are using the latest
 487 version from Git.  If the latest version fails, report the problem to the
 488 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 489 EOF
 490     if disabled logging; then
 491         cat <<EOF
 492 Rerun configure with logging enabled (do not use --disable-logging), and
 493 include the log this produces with your report.
 494 EOF
 495     else
 496         cat <<EOF
 497 Include the log file "$logfile" produced by configure as this will help
 498 solve the problem.
 499 EOF
 500     fi
 501     exit 1
 502 }
 503
 504 # Avoid locale weirdness, besides we really just want to translate ASCII.
 505 toupper(){
 506     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 507 }
 508
 509 tolower(){
 510     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 511 }
 512
 513 c_escape(){
 514     echo "$*" | sed 's/["\\]/\\\0/g'
 515 }
 516
 517 sh_quote(){
 518     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 519     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 520     echo "$v"
 521 }
 522
 523 cleanws(){
 524     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 525 }
 526
 527 filter(){
 528     pat=$1
 529     shift
 530     for v; do
 531         eval "case $v in $pat) echo $v ;; esac"
 532     done
 533 }
 534
 535 filter_out(){
 536     pat=$1
 537     shift
 538     for v; do
 539         eval "case $v in $pat) ;; *) echo $v ;; esac"
 540     done
 541 }
 542
 543 map(){
 544     m=$1
 545     shift
 546     for v; do eval $m; done
 547 }
 548
 549 add_suffix(){
 550     suffix=$1
 551     shift
 552     for v; do echo ${v}${suffix}; done
 553 }
 554
 555 set_all(){
 556     value=$1
 557     shift
 558     for var in $*; do
 559         eval $var=$value
 560     done
 561 }
 562
 563 set_weak(){
 564     value=$1
 565     shift
 566     for var; do
 567         eval : \${$var:=$value}
 568     done
 569 }
 570
 571 sanitize_var_name(){
 572     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 573 }
 574
 575 set_safe(){
 576     var=$1
 577     shift
 578     eval $(sanitize_var_name "$var")='$*'
 579 }
 580
 581 get_safe(){
 582     eval echo \$$(sanitize_var_name "$1")
 583 }
 584
 585 pushvar(){
 586     for pvar in $*; do
 587         eval level=\${${pvar}_level:=0}
 588         eval ${pvar}_${level}="\$$pvar"
 589         eval ${pvar}_level=$(($level+1))
 590     done
 591 }
 592
 593 popvar(){
 594     for pvar in $*; do
 595         eval level=\${${pvar}_level:-0}
 596         test $level = 0 && continue
 597         eval level=$(($level-1))
 598         eval $pvar="\${${pvar}_${level}}"
 599         eval ${pvar}_level=$level
 600         eval unset ${pvar}_${level}
 601     done
 602 }
 603
 604 enable(){
 605     set_all yes $*
 606 }
 607
 608 disable(){
 609     set_all no $*
 610 }
 611
 612 enable_weak(){
 613     set_weak yes $*
 614 }
 615
 616 disable_weak(){
 617     set_weak no $*
 618 }
 619
 620 enable_safe(){
 621     for var; do
 622         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 623     done
 624 }
 625
 626 disable_safe(){
 627     for var; do
 628         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 629     done
 630 }
 631
 632 do_enable_deep(){
 633     for var; do
 634         enabled $var && continue
 635         eval sel="\$${var}_select"
 636         eval sgs="\$${var}_suggest"
 637         pushvar var sgs
 638         enable_deep $sel
 639         popvar sgs
 640         enable_deep_weak $sgs
 641         popvar var
 642     done
 643 }
 644
 645 enable_deep(){
 646     do_enable_deep $*
 647     enable $*
 648 }
 649
 650 enable_deep_weak(){
 651     for var; do
 652         disabled $var && continue
 653         pushvar var
 654         do_enable_deep $var
 655         popvar var
 656         enable_weak $var
 657     done
 658 }
 659
 660 enabled(){
 661     test "${1#!}" = "$1" && op='=' || op=!=
 662     eval test "x\$${1#!}" $op "xyes"
 663 }
 664
 665 disabled(){
 666     test "${1#!}" = "$1" && op='=' || op=!=
 667     eval test "x\$${1#!}" $op "xno"
 668 }
 669
 670 enabled_all(){
 671     for opt; do
 672         enabled $opt || return 1
 673     done
 674 }
 675
 676 disabled_all(){
 677     for opt; do
 678         disabled $opt || return 1
 679     done
 680 }
 681
 682 enabled_any(){
 683     for opt; do
 684         enabled $opt && return 0
 685     done
 686 }
 687
 688 disabled_any(){
 689     for opt; do
 690         disabled $opt && return 0
 691     done
 692     return 1
 693 }
 694
 695 set_default(){
 696     for opt; do
 697         eval : \${$opt:=\$${opt}_default}
 698     done
 699 }
 700
 701 is_in(){
 702     value=$1
 703     shift
 704     for var in $*; do
 705         [ $var = $value ] && return 0
 706     done
 707     return 1
 708 }
 709
 710 do_check_deps(){
 711     for cfg; do
 712         cfg="${cfg#!}"
 713         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 714         disabled ${cfg}_checking && continue
 715         enable ${cfg}_checking
 716         append allopts $cfg
 717
 718         eval dep_all="\$${cfg}_deps"
 719         eval dep_any="\$${cfg}_deps_any"
 720         eval dep_sel="\$${cfg}_select"
 721         eval dep_sgs="\$${cfg}_suggest"
 722         eval dep_ifa="\$${cfg}_if"
 723         eval dep_ifn="\$${cfg}_if_any"
 724
 725         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 726         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 727         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 728
 729         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 730         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 731         enabled_all  $dep_all || disable $cfg
 732         enabled_any  $dep_any || disable $cfg
 733         disabled_any $dep_sel && disable $cfg
 734
 735         if enabled $cfg; then
 736             enable_deep $dep_sel
 737             enable_deep_weak $dep_sgs
 738         fi
 739
 740         disable ${cfg}_checking
 741     done
 742 }
 743
 744 check_deps(){
 745     unset allopts
 746
 747     do_check_deps "$@"
 748
 749     for cfg in $allopts; do
 750         enabled $cfg || continue
 751         eval dep_extralibs="\$${cfg}_extralibs"
 752         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 753     done
 754 }
 755
 756 print_config(){
 757     pfx=$1
 758     files=$2
 759     shift 2
 760     map 'eval echo "$v \${$v:-no}"' "$@" |
 761     awk "BEGIN { split(\"$files\", files) }
 762         {
 763             c = \"$pfx\" toupper(\$1);
 764             v = \$2;
 765             sub(/yes/, 1, v);
 766             sub(/no/,  0, v);
 767             for (f in files) {
 768                 file = files[f];
 769                 if (file ~ /\\.h\$/) {
 770                     printf(\"#define %s %d\\n\", c, v) >>file;
 771                 } else if (file ~ /\\.asm\$/) {
 772                     printf(\"%%define %s %d\\n\", c, v) >>file;
 773                 } else if (file ~ /\\.mak\$/) {
 774                     n = -v ? \"\" : \"!\";
 775                     printf(\"%s%s=yes\\n\", n, c) >>file;
 776                 } else if (file ~ /\\.texi\$/) {
 777                     pre = -v ? \"\" : \"@c \";
 778                     yesno = \$2;
 779                     c2 = tolower(c);
 780                     gsub(/_/, \"-\", c2);
 781                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 782                 }
 783             }
 784         }"
 785 }
 786
 787 print_enabled(){
 788     suf=$1
 789     shift
 790     for v; do
 791         enabled $v && printf "%s\n" ${v%$suf}
 792     done
 793 }
 794
 795 append(){
 796     var=$1
 797     shift
 798     eval "$var=\"\$$var $*\""
 799 }
 800
 801 prepend(){
 802     var=$1
 803     shift
 804     eval "$var=\"$* \$$var\""
 805 }
 806
 807 unique(){
 808     var=$1
 809     uniq_list=""
 810     for tok in $(eval echo \$$var); do
 811         uniq_list="$(filter_out $tok $uniq_list) $tok"
 812     done
 813     eval "$var=\"${uniq_list}\""
 814 }
 815
 816 add_cppflags(){
 817     append CPPFLAGS "$@"
 818 }
 819
 820 add_cflags(){
 821     append CFLAGS $($cflags_filter "$@")
 822 }
 823
 824 add_cxxflags(){
 825     append CXXFLAGS $($cflags_filter "$@")
 826 }
 827
 828 add_asflags(){
 829     append ASFLAGS $($asflags_filter "$@")
 830 }
 831
 832 add_objcflags(){
 833     append OBJCFLAGS $($objcflags_filter "$@")
 834 }
 835
 836 add_ldflags(){
 837     append LDFLAGS $($ldflags_filter "$@")
 838 }
 839
 840 add_ldexeflags(){
 841     append LDEXEFLAGS $($ldflags_filter "$@")
 842 }
 843
 844 add_ldlibflags(){
 845     append LDLIBFLAGS $($ldflags_filter "$@")
 846 }
 847
 848 add_stripflags(){
 849     append ASMSTRIPFLAGS "$@"
 850 }
 851
 852 add_extralibs(){
 853     prepend extralibs $($ldflags_filter "$@")
 854 }
 855
 856 add_host_cppflags(){
 857     append host_cppflags "$@"
 858 }
 859
 860 add_host_cflags(){
 861     append host_cflags $($host_cflags_filter "$@")
 862 }
 863
 864 add_host_ldflags(){
 865     append host_ldflags $($host_ldflags_filter "$@")
 866 }
 867
 868 add_compat(){
 869     append compat_objs $1
 870     shift
 871     map 'add_cppflags -D$v' "$@"
 872 }
 873
 874 check_cmd(){
 875     log "$@"
 876     "$@" >> $logfile 2>&1
 877 }
 878
 879 check_stat(){
 880     log check_stat "$@"
 881     stat "$1" >> $logfile 2>&1
 882 }
 883
 884 cc_o(){
 885     eval printf '%s\\n' $CC_O
 886 }
 887
 888 cc_e(){
 889     eval printf '%s\\n' $CC_E
 890 }
 891
 892 check_cc(){
 893     log check_cc "$@"
 894     cat > $TMPC
 895     log_file $TMPC
 896     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 897 }
 898
 899 check_cxx(){
 900     log check_cxx "$@"
 901     cat > $TMPCPP
 902     log_file $TMPCPP
 903     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 904 }
 905
 906 check_objcc(){
 907     log check_objcc "$@"
 908     cat > $TMPM
 909     log_file $TMPM
 910     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 911 }
 912
 913 check_cpp(){
 914     log check_cpp "$@"
 915     cat > $TMPC
 916     log_file $TMPC
 917     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 918 }
 919
 920 as_o(){
 921     eval printf '%s\\n' $AS_O
 922 }
 923
 924 check_as(){
 925     log check_as "$@"
 926     cat > $TMPS
 927     log_file $TMPS
 928     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 929 }
 930
 931 check_inline_asm(){
 932     log check_inline_asm "$@"
 933     name="$1"
 934     code="$2"
 935     shift 2
 936     disable $name
 937     check_cc "$@" <<EOF && enable $name
 938 void foo(void){ __asm__ volatile($code); }
 939 EOF
 940 }
 941
 942 check_inline_asm_flags(){
 943     log check_inline_asm_flags "$@"
 944     name="$1"
 945     code="$2"
 946     flags=''
 947     shift 2
 948     while [ "$1" != "" ]; do
 949       append flags $1
 950       shift
 951     done;
 952     disable $name
 953     cat > $TMPC <<EOF
 954 void foo(void){ __asm__ volatile($code); }
 955 EOF
 956     log_file $TMPC
 957     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 958     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 959 }
 960
 961 check_insn(){
 962     log check_insn "$@"
 963     check_inline_asm ${1}_inline "\"$2\""
 964     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 965 }
 966
 967 check_yasm(){
 968     log check_yasm "$@"
 969     echo "$1" > $TMPS
 970     log_file $TMPS
 971     shift 1
 972     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 973 }
 974
 975 ld_o(){
 976     eval printf '%s\\n' $LD_O
 977 }
 978
 979 check_ld(){
 980     log check_ld "$@"
 981     type=$1
 982     shift 1
 983     flags=$(filter_out '-l*|*.so' $@)
 984     libs=$(filter '-l*|*.so' $@)
 985     check_$type $($cflags_filter $flags) || return
 986     flags=$($ldflags_filter $flags)
 987     libs=$($ldflags_filter $libs)
 988     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 989 }
 990
 991 print_include(){
 992     hdr=$1
 993     test "${hdr%.h}" = "${hdr}" &&
 994         echo "#include $hdr"    ||
 995         echo "#include <$hdr>"
 996 }
 997
 998 check_code(){
 999     log check_code "$@"
1000     check=$1
1001     headers=$2
1002     code=$3
1003     shift 3
1004     {
1005         for hdr in $headers; do
1006             print_include $hdr
1007         done
1008         echo "int main(void) { $code; return 0; }"
1009     } | check_$check "$@"
1010 }
1011
1012 check_cppflags(){
1013     log check_cppflags "$@"
1014     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1015 int x;
1016 EOF
1017 }
1018
1019 test_cflags(){
1020     log test_cflags "$@"
1021     set -- $($cflags_filter "$@")
1022     check_cc "$@" <<EOF
1023 int x;
1024 EOF
1025 }
1026
1027 check_cflags(){
1028     log check_cflags "$@"
1029     test_cflags "$@" && add_cflags "$@"
1030 }
1031
1032 check_cxxflags(){
1033     log check_cxxflags "$@"
1034     set -- $($cflags_filter "$@")
1035     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1036 int x;
1037 EOF
1038 }
1039
1040 test_objcflags(){
1041     log test_cflags "$@"
1042     set -- $($cflags_filter "$@")
1043     check_objcc "$@" <<EOF
1044 int x;
1045 EOF
1046 }
1047
1048 check_objcflags(){
1049     log check_cflags "$@"
1050     test_objcflags "$@" && add_objcflags "$@"
1051 }
1052
1053 test_ldflags(){
1054     log test_ldflags "$@"
1055     check_ld "cc" "$@" <<EOF
1056 int main(void){ return 0; }
1057 EOF
1058 }
1059
1060 check_ldflags(){
1061     log check_ldflags "$@"
1062     test_ldflags "$@" && add_ldflags "$@"
1063 }
1064
1065 test_stripflags(){
1066     log test_stripflags "$@"
1067     # call check_cc to get a fresh TMPO
1068     check_cc <<EOF
1069 int main(void) { return 0; }
1070 EOF
1071     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1072 }
1073
1074 check_stripflags(){
1075     log check_stripflags "$@"
1076     test_stripflags "$@" && add_stripflags "$@"
1077 }
1078
1079 check_header(){
1080     log check_header "$@"
1081     header=$1
1082     shift
1083     disable_safe $header
1084     check_cpp "$@" <<EOF && enable_safe $header
1085 #include <$header>
1086 int x;
1087 EOF
1088 }
1089
1090 check_header_objcc(){
1091     log check_header_objcc "$@"
1092     rm -f -- "$TMPO"
1093     header=$1
1094     shift
1095     disable_safe $header
1096     {
1097        echo "#include <$header>"
1098        echo "int main(void) { return 0; }"
1099     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1100 }
1101
1102 check_func(){
1103     log check_func "$@"
1104     func=$1
1105     shift
1106     disable $func
1107     check_ld "cc" "$@" <<EOF && enable $func
1108 extern int $func();
1109 int main(void){ $func(); }
1110 EOF
1111 }
1112
1113 check_complexfunc(){
1114     log check_complexfunc "$@"
1115     func=$1
1116     narg=$2
1117     shift 2
1118     test $narg = 2 && args="f, g" || args="f * I"
1119     disable $func
1120     check_ld "cc" "$@" <<EOF && enable $func
1121 #include <complex.h>
1122 #include <math.h>
1123 float foo(complex float f, complex float g) { return $func($args); }
1124 int main(void){ return (int) foo; }
1125 EOF
1126 }
1127
1128 check_mathfunc(){
1129     log check_mathfunc "$@"
1130     func=$1
1131     narg=$2
1132     shift 2
1133     test $narg = 2 && args="f, g" || args="f"
1134     disable $func
1135     check_ld "cc" "$@" <<EOF && enable $func
1136 #include <math.h>
1137 float foo(float f, float g) { return $func($args); }
1138 int main(void){ return (int) foo; }
1139 EOF
1140 }
1141
1142 check_func_headers(){
1143     log check_func_headers "$@"
1144     headers=$1
1145     funcs=$2
1146     shift 2
1147     {
1148         for hdr in $headers; do
1149             print_include $hdr
1150         done
1151         for func in $funcs; do
1152             echo "long check_$func(void) { return (long) $func; }"
1153         done
1154         echo "int main(void) { return 0; }"
1155     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1156 }
1157
1158 check_class_headers_cpp(){
1159     log check_class_headers_cpp "$@"
1160     headers=$1
1161     classes=$2
1162     shift 2
1163     {
1164         for hdr in $headers; do
1165             echo "#include <$hdr>"
1166         done
1167         echo "int main(void) { "
1168         i=1
1169         for class in $classes; do
1170             echo "$class obj$i;"
1171             i=$(expr $i + 1)
1172         done
1173         echo "return 0; }"
1174     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1175 }
1176
1177 check_cpp_condition(){
1178     log check_cpp_condition "$@"
1179     header=$1
1180     condition=$2
1181     shift 2
1182     check_cpp "$@" <<EOF
1183 #include <$header>
1184 #if !($condition)
1185 #error "unsatisfied condition: $condition"
1186 #endif
1187 EOF
1188 }
1189
1190 check_lib(){
1191     log check_lib "$@"
1192     header="$1"
1193     func="$2"
1194     shift 2
1195     check_header $header && check_func $func "$@" && add_extralibs "$@"
1196 }
1197
1198 check_lib2(){
1199     log check_lib2 "$@"
1200     headers="$1"
1201     funcs="$2"
1202     shift 2
1203     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1204 }
1205
1206 check_lib_cpp(){
1207     log check_lib_cpp "$@"
1208     headers="$1"
1209     classes="$2"
1210     shift 2
1211     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1212 }
1213
1214 check_pkg_config(){
1215     log check_pkg_config "$@"
1216     pkgandversion="$1"
1217     pkg="${1%% *}"
1218     headers="$2"
1219     funcs="$3"
1220     shift 3
1221     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1222     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1223     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1224     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1225         set_safe "${pkg}_cflags" $pkg_cflags   &&
1226         set_safe "${pkg}_libs"   $pkg_libs
1227 }
1228
1229 check_exec(){
1230     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1231 }
1232
1233 check_exec_crash(){
1234     code=$(cat)
1235
1236     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1237     # are safe but may not be available everywhere.  Thus we use
1238     # raise(SIGTERM) instead.  The check is run in a subshell so we
1239     # can redirect the "Terminated" message from the shell.  SIGBUS
1240     # is not defined by standard C so it is used conditionally.
1241
1242     (check_exec "$@") >> $logfile 2>&1 <<EOF
1243 #include <signal.h>
1244 static void sighandler(int sig){
1245     raise(SIGTERM);
1246 }
1247 int foo(void){
1248     $code
1249 }
1250 int (*func_ptr)(void) = foo;
1251 int main(void){
1252     signal(SIGILL, sighandler);
1253     signal(SIGFPE, sighandler);
1254     signal(SIGSEGV, sighandler);
1255 #ifdef SIGBUS
1256     signal(SIGBUS, sighandler);
1257 #endif
1258     return func_ptr();
1259 }
1260 EOF
1261 }
1262
1263 check_type(){
1264     log check_type "$@"
1265     headers=$1
1266     type=$2
1267     shift 2
1268     disable_safe "$type"
1269     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1270 }
1271
1272 check_struct(){
1273     log check_struct "$@"
1274     headers=$1
1275     struct=$2
1276     member=$3
1277     shift 3
1278     disable_safe "${struct}_${member}"
1279     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1280         enable_safe "${struct}_${member}"
1281 }
1282
1283 check_builtin(){
1284     log check_builtin "$@"
1285     name=$1
1286     headers=$2
1287     builtin=$3
1288     shift 3
1289     disable "$name"
1290     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1291 }
1292
1293 check_compile_assert(){
1294     log check_compile_assert "$@"
1295     name=$1
1296     headers=$2
1297     condition=$3
1298     shift 3
1299     disable "$name"
1300     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1301 }
1302
1303 require(){
1304     name="$1"
1305     header="$2"
1306     func="$3"
1307     shift 3
1308     check_lib $header $func "$@" || die "ERROR: $name not found"
1309 }
1310
1311 require2(){
1312     name="$1"
1313     headers="$2"
1314     func="$3"
1315     shift 3
1316     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1317 }
1318
1319 require_cpp(){
1320     name="$1"
1321     headers="$2"
1322     classes="$3"
1323     shift 3
1324     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1325 }
1326
1327 use_pkg_config(){
1328     pkg="$1"
1329     check_pkg_config "$@" || return 1
1330     add_cflags    $(get_safe "${pkg}_cflags")
1331     add_extralibs $(get_safe "${pkg}_libs")
1332 }
1333
1334 require_pkg_config(){
1335     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1336 }
1337
1338 require_libfreetype(){
1339     log require_libfreetype "$@"
1340     pkg="freetype2"
1341     check_cmd $pkg_config --exists --print-errors $pkg \
1342       || die "ERROR: $pkg not found"
1343     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1344     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1345     {
1346         echo "#include <ft2build.h>"
1347         echo "#include FT_FREETYPE_H"
1348         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1349         echo "int main(void) { return 0; }"
1350     } | check_ld "cc" $pkg_cflags $pkg_libs \
1351       && set_safe "${pkg}_cflags" $pkg_cflags \
1352       && set_safe "${pkg}_libs"   $pkg_libs \
1353       || die "ERROR: $pkg not found"
1354     add_cflags    $(get_safe "${pkg}_cflags")
1355     add_extralibs $(get_safe "${pkg}_libs")
1356 }
1357
1358 hostcc_e(){
1359     eval printf '%s\\n' $HOSTCC_E
1360 }
1361
1362 hostcc_o(){
1363     eval printf '%s\\n' $HOSTCC_O
1364 }
1365
1366 check_host_cc(){
1367     log check_host_cc "$@"
1368     cat > $TMPC
1369     log_file $TMPC
1370     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1371 }
1372
1373 check_host_cpp(){
1374     log check_host_cpp "$@"
1375     cat > $TMPC
1376     log_file $TMPC
1377     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1378 }
1379
1380 check_host_cppflags(){
1381     log check_host_cppflags "$@"
1382     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1383 int x;
1384 EOF
1385 }
1386
1387 check_host_cflags(){
1388     log check_host_cflags "$@"
1389     set -- $($host_cflags_filter "$@")
1390     check_host_cc "$@" <<EOF && append host_cflags "$@"
1391 int x;
1392 EOF
1393 }
1394
1395 check_host_cpp_condition(){
1396     log check_host_cpp_condition "$@"
1397     header=$1
1398     condition=$2
1399     shift 2
1400     check_host_cpp "$@" <<EOF
1401 #include <$header>
1402 #if !($condition)
1403 #error "unsatisfied condition: $condition"
1404 #endif
1405 EOF
1406 }
1407
1408 cp_if_changed(){
1409     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1410     mkdir -p "$(dirname $2)"
1411     $cp_f "$1" "$2"
1412 }
1413
1414 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1415 # system-dependent things.
1416
1417 AVCODEC_COMPONENTS="
1418     bsfs
1419     decoders
1420     encoders
1421     hwaccels
1422     parsers
1423 "
1424
1425 AVDEVICE_COMPONENTS="
1426     indevs
1427     outdevs
1428 "
1429 AVFILTER_COMPONENTS="
1430     filters
1431 "
1432 AVFORMAT_COMPONENTS="
1433     demuxers
1434     muxers
1435     protocols
1436 "
1437
1438 AVRESAMPLE_COMPONENTS=""
1439 AVUTIL_COMPONENTS=""
1440
1441 COMPONENT_LIST="
1442     $AVCODEC_COMPONENTS
1443     $AVDEVICE_COMPONENTS
1444     $AVFILTER_COMPONENTS
1445     $AVFORMAT_COMPONENTS
1446     $AVRESAMPLE_COMPONENTS
1447     $AVUTIL_COMPONENTS
1448 "
1449
1450 EXAMPLE_LIST="
1451     avio_reading_example
1452     avio_dir_cmd_example
1453     decoding_encoding_example
1454     demuxing_decoding_example
1455     extract_mvs_example
1456     filter_audio_example
1457     filtering_audio_example
1458     filtering_video_example
1459     metadata_example
1460     muxing_example
1461     qsvdec_example
1462     remuxing_example
1463     resampling_audio_example
1464     scaling_video_example
1465     transcode_aac_example
1466     transcoding_example
1467 "
1468
1469 EXTERNAL_LIBRARY_LIST="
1470     avisynth
1471     bzlib
1472     chromaprint
1473     crystalhd
1474     decklink
1475     frei0r
1476     gcrypt
1477     gmp
1478     gnutls
1479     iconv
1480     jni
1481     ladspa
1482     libass
1483     libbluray
1484     libbs2b
1485     libcaca
1486     libcdio
1487     libcelt
1488     libdc1394
1489     libebur128
1490     libfaac
1491     libfdk_aac
1492     libflite
1493     libfontconfig
1494     libfreetype
1495     libfribidi
1496     libgme
1497     libgsm
1498     libiec61883
1499     libilbc
1500     libkvazaar
1501     libmodplug
1502     libmp3lame
1503     libnut
1504     libopencore_amrnb
1505     libopencore_amrwb
1506     libopencv
1507     libopenh264
1508     libopenjpeg
1509     libopenmpt
1510     libopus
1511     libpulse
1512     librtmp
1513     librubberband
1514     libschroedinger
1515     libshine
1516     libsmbclient
1517     libsnappy
1518     libsoxr
1519     libspeex
1520     libssh
1521     libtesseract
1522     libtheora
1523     libtwolame
1524     libv4l2
1525     libvidstab
1526     libvo_amrwbenc
1527     libvorbis
1528     libvpx
1529     libwavpack
1530     libwebp
1531     libx264
1532     libx265
1533     libxavs
1534     libxcb
1535     libxcb_shm
1536     libxcb_shape
1537     libxcb_xfixes
1538     libxvid
1539     libzimg
1540     libzmq
1541     libzvbi
1542     lzma
1543     mediacodec
1544     netcdf
1545     openal
1546     opencl
1547     opengl
1548     openssl
1549     schannel
1550     sdl
1551     securetransport
1552     videotoolbox
1553     x11grab
1554     xlib
1555     zlib
1556 "
1557
1558 HWACCEL_LIBRARY_LIST="
1559     audiotoolbox
1560     cuda
1561     cuvid
1562     d3d11va
1563     dxva2
1564     libmfx
1565     libnpp
1566     mmal
1567     nvenc
1568     omx
1569     vaapi
1570     vda
1571     vdpau
1572     videotoolbox_hwaccel
1573     xvmc
1574 "
1575
1576 DOCUMENT_LIST="
1577     doc
1578     htmlpages
1579     manpages
1580     podpages
1581     txtpages
1582 "
1583
1584 FEATURE_LIST="
1585     ftrapv
1586     gray
1587     hardcoded_tables
1588     omx_rpi
1589     runtime_cpudetect
1590     safe_bitstream_reader
1591     shared
1592     small
1593     static
1594     swscale_alpha
1595 "
1596
1597 LIBRARY_LIST="
1598     avcodec
1599     avdevice
1600     avfilter
1601     avformat
1602     avresample
1603     avutil
1604     postproc
1605     swresample
1606     swscale
1607 "
1608
1609 LICENSE_LIST="
1610     gpl
1611     nonfree
1612     version3
1613 "
1614
1615 PROGRAM_LIST="
1616     ffplay
1617     ffprobe
1618     ffserver
1619     ffmpeg
1620 "
1621
1622 SUBSYSTEM_LIST="
1623     dct
1624     dwt
1625     error_resilience
1626     faan
1627     fast_unaligned
1628     fft
1629     lsp
1630     lzo
1631     mdct
1632     pixelutils
1633     network
1634     rdft
1635 "
1636
1637 CONFIG_LIST="
1638     $COMPONENT_LIST
1639     $DOCUMENT_LIST
1640     $EXAMPLE_LIST
1641     $EXTERNAL_LIBRARY_LIST
1642     $HWACCEL_LIBRARY_LIST
1643     $FEATURE_LIST
1644     $LICENSE_LIST
1645     $LIBRARY_LIST
1646     $PROGRAM_LIST
1647     $SUBSYSTEM_LIST
1648     fontconfig
1649     incompatible_libav_abi
1650     memalign_hack
1651     memory_poisoning
1652     neon_clobber_test
1653     pic
1654     pod2man
1655     raise_major
1656     thumb
1657     valgrind_backtrace
1658     xmm_clobber_test
1659 "
1660
1661 THREADS_LIST="
1662     pthreads
1663     os2threads
1664     w32threads
1665 "
1666
1667 ATOMICS_LIST="
1668     atomics_gcc
1669     atomics_suncc
1670     atomics_win32
1671 "
1672
1673 ARCH_LIST="
1674     aarch64
1675     alpha
1676     arm
1677     avr32
1678     avr32_ap
1679     avr32_uc
1680     bfin
1681     ia64
1682     m68k
1683     mips
1684     mips64
1685     parisc
1686     ppc
1687     ppc64
1688     s390
1689     sh4
1690     sparc
1691     sparc64
1692     tilegx
1693     tilepro
1694     tomi
1695     x86
1696     x86_32
1697     x86_64
1698 "
1699
1700 ARCH_EXT_LIST_ARM="
1701     armv5te
1702     armv6
1703     armv6t2
1704     armv8
1705     neon
1706     vfp
1707     vfpv3
1708     setend
1709 "
1710
1711 ARCH_EXT_LIST_MIPS="
1712     mipsfpu
1713     mips32r2
1714     mips32r5
1715     mips64r2
1716     mips32r6
1717     mips64r6
1718     mipsdsp
1719     mipsdspr2
1720     msa
1721 "
1722
1723 ARCH_EXT_LIST_LOONGSON="
1724     loongson2
1725     loongson3
1726     mmi
1727 "
1728
1729 ARCH_EXT_LIST_X86_SIMD="
1730     aesni
1731     amd3dnow
1732     amd3dnowext
1733     avx
1734     avx2
1735     fma3
1736     fma4
1737     mmx
1738     mmxext
1739     sse
1740     sse2
1741     sse3
1742     sse4
1743     sse42
1744     ssse3
1745     xop
1746 "
1747
1748 ARCH_EXT_LIST_PPC="
1749     altivec
1750     dcbzl
1751     ldbrx
1752     power8
1753     ppc4xx
1754     vsx
1755 "
1756
1757 ARCH_EXT_LIST_X86="
1758     $ARCH_EXT_LIST_X86_SIMD
1759     cpunop
1760     i686
1761 "
1762
1763 ARCH_EXT_LIST="
1764     $ARCH_EXT_LIST_ARM
1765     $ARCH_EXT_LIST_PPC
1766     $ARCH_EXT_LIST_X86
1767     $ARCH_EXT_LIST_MIPS
1768     $ARCH_EXT_LIST_LOONGSON
1769 "
1770
1771 ARCH_FEATURES="
1772     aligned_stack
1773     fast_64bit
1774     fast_clz
1775     fast_cmov
1776     local_aligned_8
1777     local_aligned_16
1778     local_aligned_32
1779     simd_align_16
1780 "
1781
1782 BUILTIN_LIST="
1783     atomic_cas_ptr
1784     atomic_compare_exchange
1785     machine_rw_barrier
1786     MemoryBarrier
1787     mm_empty
1788     rdtsc
1789     sarestart
1790     sem_timedwait
1791     sync_val_compare_and_swap
1792 "
1793 HAVE_LIST_CMDLINE="
1794     inline_asm
1795     symver
1796     yasm
1797 "
1798
1799 HAVE_LIST_PUB="
1800     bigendian
1801     fast_unaligned
1802     incompatible_libav_abi
1803 "
1804
1805 HEADERS_LIST="
1806     alsa_asoundlib_h
1807     altivec_h
1808     arpa_inet_h
1809     asm_types_h
1810     cdio_paranoia_h
1811     cdio_paranoia_paranoia_h
1812     dispatch_dispatch_h
1813     dev_bktr_ioctl_bt848_h
1814     dev_bktr_ioctl_meteor_h
1815     dev_ic_bt8xx_h
1816     dev_video_bktr_ioctl_bt848_h
1817     dev_video_meteor_ioctl_meteor_h
1818     direct_h
1819     dirent_h
1820     dlfcn_h
1821     d3d11_h
1822     dxva_h
1823     ES2_gl_h
1824     gsm_h
1825     io_h
1826     mach_mach_time_h
1827     machine_ioctl_bt848_h
1828     machine_ioctl_meteor_h
1829     malloc_h
1830     opencv2_core_core_c_h
1831     openjpeg_2_1_openjpeg_h
1832     openjpeg_2_0_openjpeg_h
1833     openjpeg_1_5_openjpeg_h
1834     OpenGL_gl3_h
1835     poll_h
1836     sndio_h
1837     soundcard_h
1838     sys_mman_h
1839     sys_param_h
1840     sys_resource_h
1841     sys_select_h
1842     sys_soundcard_h
1843     sys_time_h
1844     sys_un_h
1845     sys_videoio_h
1846     termios_h
1847     udplite_h
1848     unistd_h
1849     valgrind_valgrind_h
1850     windows_h
1851     winsock2_h
1852 "
1853
1854 INTRINSICS_LIST="
1855     intrinsics_neon
1856 "
1857
1858 COMPLEX_FUNCS="
1859     cabs
1860     cexp
1861 "
1862
1863 MATH_FUNCS="
1864     atanf
1865     atan2f
1866     cbrt
1867     cbrtf
1868     copysign
1869     cosf
1870     erf
1871     exp2
1872     exp2f
1873     expf
1874     hypot
1875     isfinite
1876     isinf
1877     isnan
1878     ldexpf
1879     llrint
1880     llrintf
1881     log2
1882     log2f
1883     log10f
1884     lrint
1885     lrintf
1886     powf
1887     rint
1888     round
1889     roundf
1890     sinf
1891     trunc
1892     truncf
1893 "
1894
1895 SYSTEM_FUNCS="
1896     access
1897     aligned_malloc
1898     arc4random
1899     clock_gettime
1900     closesocket
1901     CommandLineToArgvW
1902     CoTaskMemFree
1903     CryptGenRandom
1904     dlopen
1905     fcntl
1906     flt_lim
1907     fork
1908     getaddrinfo
1909     gethrtime
1910     getopt
1911     GetProcessAffinityMask
1912     GetProcessMemoryInfo
1913     GetProcessTimes
1914     getrusage
1915     GetSystemTimeAsFileTime
1916     gettimeofday
1917     glob
1918     glXGetProcAddress
1919     gmtime_r
1920     inet_aton
1921     isatty
1922     jack_port_get_latency_range
1923     kbhit
1924     LoadLibrary
1925     localtime_r
1926     lstat
1927     lzo1x_999_compress
1928     mach_absolute_time
1929     MapViewOfFile
1930     memalign
1931     mkstemp
1932     mmap
1933     mprotect
1934     nanosleep
1935     PeekNamedPipe
1936     posix_memalign
1937     pthread_cancel
1938     sched_getaffinity
1939     SetConsoleTextAttribute
1940     SetConsoleCtrlHandler
1941     setmode
1942     setrlimit
1943     Sleep
1944     strerror_r
1945     sysconf
1946     sysctl
1947     usleep
1948     UTGetOSTypeFromString
1949     VirtualAlloc
1950     wglGetProcAddress
1951 "
1952
1953 TOOLCHAIN_FEATURES="
1954     as_dn_directive
1955     as_func
1956     as_object_arch
1957     asm_mod_q
1958     attribute_may_alias
1959     attribute_packed
1960     ebp_available
1961     ebx_available
1962     gnu_as
1963     gnu_windres
1964     ibm_asm
1965     inline_asm_direct_symbol_refs
1966     inline_asm_labels
1967     inline_asm_nonlocal_labels
1968     pragma_deprecated
1969     rsync_contimeout
1970     symver_asm_label
1971     symver_gnu_asm
1972     vfp_args
1973     xform_asm
1974     xmm_clobbers
1975 "
1976
1977 TYPES_LIST="
1978     CONDITION_VARIABLE_Ptr
1979     socklen_t
1980     struct_addrinfo
1981     struct_group_source_req
1982     struct_ip_mreq_source
1983     struct_ipv6_mreq
1984     struct_msghdr_msg_flags
1985     struct_pollfd
1986     struct_rusage_ru_maxrss
1987     struct_sctp_event_subscribe
1988     struct_sockaddr_in6
1989     struct_sockaddr_sa_len
1990     struct_sockaddr_storage
1991     struct_stat_st_mtim_tv_nsec
1992     struct_v4l2_frmivalenum_discrete
1993 "
1994
1995 HAVE_LIST="
1996     $ARCH_EXT_LIST
1997     $(add_suffix _external $ARCH_EXT_LIST)
1998     $(add_suffix _inline   $ARCH_EXT_LIST)
1999     $ARCH_FEATURES
2000     $ATOMICS_LIST
2001     $BUILTIN_LIST
2002     $COMPLEX_FUNCS
2003     $HAVE_LIST_CMDLINE
2004     $HAVE_LIST_PUB
2005     $HEADERS_LIST
2006     $INTRINSICS_LIST
2007     $MATH_FUNCS
2008     $SYSTEM_FUNCS
2009     $THREADS_LIST
2010     $TOOLCHAIN_FEATURES
2011     $TYPES_LIST
2012     atomics_native
2013     dos_paths
2014     dxva2_lib
2015     dxva2api_cobj
2016     libc_msvcrt
2017     libdc1394_1
2018     libdc1394_2
2019     makeinfo
2020     makeinfo_html
2021     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2022     perl
2023     pod2man
2024     sdl
2025     section_data_rel_ro
2026     texi2html
2027     threads
2028     vaapi_drm
2029     vaapi_x11
2030     vdpau_x11
2031     winrt
2032     xlib
2033 "
2034
2035 # options emitted with CONFIG_ prefix but not available on the command line
2036 CONFIG_EXTRA="
2037     aandcttables
2038     ac3dsp
2039     audio_frame_queue
2040     audiodsp
2041     blockdsp
2042     bswapdsp
2043     cabac
2044     dirac_parse
2045     dvprofile
2046     exif
2047     faandct
2048     faanidct
2049     fdctdsp
2050     flacdsp
2051     fmtconvert
2052     frame_thread_encoder
2053     g722dsp
2054     golomb
2055     gplv3
2056     h263dsp
2057     h264chroma
2058     h264dsp
2059     h264pred
2060     h264qpel
2061     hpeldsp
2062     huffman
2063     huffyuvdsp
2064     huffyuvencdsp
2065     idctdsp
2066     iirfilter
2067     imdct15
2068     intrax8
2069     iso_media
2070     ividsp
2071     jpegtables
2072     lgplv3
2073     libx262
2074     llauddsp
2075     llviddsp
2076     lpc
2077     lzf
2078     me_cmp
2079     mpeg_er
2080     mpegaudio
2081     mpegaudiodsp
2082     mpegvideo
2083     mpegvideoenc
2084     mss34dsp
2085     pixblockdsp
2086     qpeldsp
2087     qsv
2088     qsvdec
2089     qsvenc
2090     rangecoder
2091     riffdec
2092     riffenc
2093     rtpdec
2094     rtpenc_chain
2095     rv34dsp
2096     sinewin
2097     snappy
2098     srtp
2099     startcode
2100     texturedsp
2101     texturedspenc
2102     tpeldsp
2103     vaapi_encode
2104     vc1dsp
2105     videodsp
2106     vp3dsp
2107     vp56dsp
2108     vp8dsp
2109     vt_bt2020
2110     wma_freqs
2111     wmv2dsp
2112 "
2113
2114 CMDLINE_SELECT="
2115     $ARCH_EXT_LIST
2116     $CONFIG_LIST
2117     $HAVE_LIST_CMDLINE
2118     $THREADS_LIST
2119     asm
2120     cross_compile
2121     debug
2122     extra_warnings
2123     logging
2124     lto
2125     optimizations
2126     rpath
2127     stripping
2128 "
2129
2130 PATHS_LIST="
2131     bindir
2132     datadir
2133     docdir
2134     incdir
2135     libdir
2136     mandir
2137     pkgconfigdir
2138     prefix
2139     shlibdir
2140     install_name_dir
2141 "
2142
2143 CMDLINE_SET="
2144     $PATHS_LIST
2145     ar
2146     arch
2147     as
2148     assert_level
2149     build_suffix
2150     cc
2151     objcc
2152     cpu
2153     cross_prefix
2154     custom_allocator
2155     cxx
2156     dep_cc
2157     doxygen
2158     env
2159     extra_version
2160     gas
2161     host_cc
2162     host_cflags
2163     host_ld
2164     host_ldflags
2165     host_libs
2166     host_os
2167     install
2168     ld
2169     ln_s
2170     logfile
2171     malloc_prefix
2172     nm
2173     optflags
2174     pkg_config
2175     pkg_config_flags
2176     progs_suffix
2177     random_seed
2178     ranlib
2179     samples
2180     strip
2181     sws_max_filter_size
2182     sysinclude
2183     sysroot
2184     target_exec
2185     target_os
2186     target_path
2187     target_samples
2188     tempprefix
2189     toolchain
2190     valgrind
2191     yasmexe
2192 "
2193
2194 CMDLINE_APPEND="
2195     extra_cflags
2196     extra_cxxflags
2197     extra_objcflags
2198     host_cppflags
2199 "
2200
2201 # code dependency declarations
2202
2203 # architecture extensions
2204
2205 armv5te_deps="arm"
2206 armv6_deps="arm"
2207 armv6t2_deps="arm"
2208 armv8_deps="aarch64"
2209 neon_deps_any="aarch64 arm"
2210 intrinsics_neon_deps="neon"
2211 vfp_deps_any="aarch64 arm"
2212 vfpv3_deps="vfp"
2213 setend_deps="arm"
2214
2215 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2216
2217 loongson2_deps="mips"
2218 loongson3_deps="mips"
2219 mipsfpu_deps="mips"
2220 mipsdsp_deps="mips"
2221 mipsdspr2_deps="mips"
2222 mips32r2_deps="mips"
2223 mips32r5_deps="mips"
2224 mips32r6_deps="mips"
2225 mips64r2_deps="mips"
2226 mips64r6_deps="mips"
2227 msa_deps="mipsfpu"
2228 mmi_deps="mips"
2229
2230 altivec_deps="ppc"
2231 dcbzl_deps="ppc"
2232 ldbrx_deps="ppc"
2233 ppc4xx_deps="ppc"
2234 vsx_deps="altivec"
2235 power8_deps="vsx"
2236
2237 cpunop_deps="i686"
2238 x86_64_select="i686"
2239 x86_64_suggest="fast_cmov"
2240
2241 amd3dnow_deps="mmx"
2242 amd3dnowext_deps="amd3dnow"
2243 i686_deps="x86"
2244 mmx_deps="x86"
2245 mmxext_deps="mmx"
2246 sse_deps="mmxext"
2247 sse2_deps="sse"
2248 sse3_deps="sse2"
2249 ssse3_deps="sse3"
2250 sse4_deps="ssse3"
2251 sse42_deps="sse4"
2252 aesni_deps="sse42"
2253 avx_deps="sse42"
2254 xop_deps="avx"
2255 fma3_deps="avx"
2256 fma4_deps="avx"
2257 avx2_deps="avx"
2258
2259 mmx_external_deps="yasm"
2260 mmx_inline_deps="inline_asm"
2261 mmx_suggest="mmx_external mmx_inline"
2262
2263 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2264     eval dep=\$${ext}_deps
2265     eval ${ext}_external_deps='"${dep}_external"'
2266     eval ${ext}_inline_deps='"${dep}_inline"'
2267     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2268 done
2269
2270 aligned_stack_if_any="aarch64 ppc x86"
2271 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2272 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2273 fast_unaligned_if_any="aarch64 ppc x86"
2274 simd_align_16_if_any="altivec neon sse"
2275
2276 # system capabilities
2277 symver_if_any="symver_asm_label symver_gnu_asm"
2278 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2279
2280 # threading support
2281 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2282 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2283 atomics_win32_if="MemoryBarrier"
2284 atomics_native_if_any="$ATOMICS_LIST"
2285 w32threads_deps="atomics_native"
2286 threads_if_any="$THREADS_LIST"
2287
2288 # subsystems
2289 dct_select="rdft"
2290 dirac_parse_select="golomb"
2291 error_resilience_select="me_cmp"
2292 faandct_deps="faan fdctdsp"
2293 faanidct_deps="faan idctdsp"
2294 h264dsp_select="startcode"
2295 frame_thread_encoder_deps="encoders threads"
2296 intrax8_select="blockdsp idctdsp"
2297 mdct_select="fft"
2298 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2299 mpeg_er_select="error_resilience"
2300 mpegaudio_select="mpegaudiodsp"
2301 mpegaudiodsp_select="dct"
2302 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2303 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2304 vc1dsp_select="h264chroma qpeldsp startcode"
2305 rdft_select="fft"
2306
2307 # decoders / encoders
2308 aac_decoder_select="imdct15 mdct sinewin"
2309 aac_fixed_decoder_select="mdct sinewin"
2310 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2311 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2312 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2313 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2314 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2315 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2316 adpcm_g722_decoder_select="g722dsp"
2317 adpcm_g722_encoder_select="g722dsp"
2318 aic_decoder_select="golomb idctdsp"
2319 alac_encoder_select="lpc"
2320 als_decoder_select="bswapdsp"
2321 amrnb_decoder_select="lsp"
2322 amrwb_decoder_select="lsp"
2323 amv_decoder_select="sp5x_decoder exif"
2324 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2325 ape_decoder_select="bswapdsp llauddsp"
2326 apng_decoder_select="zlib"
2327 apng_encoder_select="huffyuvencdsp zlib"
2328 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2329 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2330 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2331 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2332 atrac1_decoder_select="mdct sinewin"
2333 atrac3_decoder_select="mdct"
2334 atrac3p_decoder_select="mdct sinewin"
2335 avrn_decoder_select="exif jpegtables"
2336 bink_decoder_select="blockdsp hpeldsp"
2337 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2338 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2339 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2340 cllc_decoder_select="bswapdsp"
2341 comfortnoise_encoder_select="lpc"
2342 cook_decoder_select="audiodsp mdct sinewin"
2343 cscd_decoder_select="lzo"
2344 cscd_decoder_suggest="zlib"
2345 dca_decoder_select="mdct"
2346 dds_decoder_select="texturedsp"
2347 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2348 dnxhd_decoder_select="blockdsp idctdsp"
2349 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2350 dvvideo_decoder_select="dvprofile idctdsp"
2351 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2352 dxa_decoder_select="zlib"
2353 dxv_decoder_select="lzf texturedsp"
2354 eac3_decoder_select="ac3_decoder"
2355 eac3_encoder_select="ac3_encoder"
2356 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2357 eatgq_decoder_select="aandcttables"
2358 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2359 exr_decoder_select="zlib"
2360 ffv1_decoder_select="golomb rangecoder"
2361 ffv1_encoder_select="rangecoder"
2362 ffvhuff_decoder_select="huffyuv_decoder"
2363 ffvhuff_encoder_select="huffyuv_encoder"
2364 fic_decoder_select="golomb"
2365 flac_decoder_select="flacdsp golomb"
2366 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2367 flashsv2_decoder_select="zlib"
2368 flashsv2_encoder_select="zlib"
2369 flashsv_decoder_select="zlib"
2370 flashsv_encoder_select="zlib"
2371 flv_decoder_select="h263_decoder"
2372 flv_encoder_select="h263_encoder"
2373 fourxm_decoder_select="blockdsp bswapdsp"
2374 fraps_decoder_select="bswapdsp huffman"
2375 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2376 g729_decoder_select="audiodsp"
2377 h261_decoder_select="mpegvideo"
2378 h261_encoder_select="aandcttables mpegvideoenc"
2379 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2380 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2381 h263i_decoder_select="h263_decoder"
2382 h263p_decoder_select="h263_decoder"
2383 h263p_encoder_select="h263_encoder"
2384 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2385 h264_decoder_suggest="error_resilience"
2386 hap_decoder_select="snappy texturedsp"
2387 hap_encoder_deps="libsnappy"
2388 hap_encoder_select="texturedspenc"
2389 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2390 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2391 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2392 iac_decoder_select="imc_decoder"
2393 imc_decoder_select="bswapdsp fft mdct sinewin"
2394 indeo3_decoder_select="hpeldsp"
2395 indeo4_decoder_select="ividsp"
2396 indeo5_decoder_select="ividsp"
2397 interplay_video_decoder_select="hpeldsp"
2398 jpegls_decoder_select="golomb mjpeg_decoder"
2399 jpegls_encoder_select="golomb"
2400 jv_decoder_select="blockdsp"
2401 lagarith_decoder_select="huffyuvdsp"
2402 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2403 loco_decoder_select="golomb"
2404 magicyuv_decoder_select="huffyuvdsp"
2405 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2406 metasound_decoder_select="lsp mdct sinewin"
2407 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2408 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2409 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2410 mjpegb_decoder_select="mjpeg_decoder"
2411 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2412 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2413 mlp_decoder_select="mlp_parser"
2414 motionpixels_decoder_select="bswapdsp"
2415 mp1_decoder_select="mpegaudio"
2416 mp1float_decoder_select="mpegaudio"
2417 mp2_decoder_select="mpegaudio"
2418 mp2float_decoder_select="mpegaudio"
2419 mp3_decoder_select="mpegaudio"
2420 mp3adu_decoder_select="mpegaudio"
2421 mp3adufloat_decoder_select="mpegaudio"
2422 mp3float_decoder_select="mpegaudio"
2423 mp3on4_decoder_select="mpegaudio"
2424 mp3on4float_decoder_select="mpegaudio"
2425 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2426 mpc8_decoder_select="mpegaudiodsp"
2427 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2428 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2429 mpegvideo_decoder_select="mpegvideo"
2430 mpeg1video_decoder_select="mpegvideo"
2431 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2432 mpeg2video_decoder_select="mpegvideo"
2433 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2434 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2435 mpeg4_encoder_select="h263_encoder"
2436 msa1_decoder_select="mss34dsp"
2437 msmpeg4v1_decoder_select="h263_decoder"
2438 msmpeg4v2_decoder_select="h263_decoder"
2439 msmpeg4v2_encoder_select="h263_encoder"
2440 msmpeg4v3_decoder_select="h263_decoder"
2441 msmpeg4v3_encoder_select="h263_encoder"
2442 mss2_decoder_select="vc1_decoder mpegvideo"
2443 mts2_decoder_select="mss34dsp"
2444 mxpeg_decoder_select="mjpeg_decoder"
2445 nellymoser_decoder_select="mdct sinewin"
2446 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2447 nuv_decoder_select="idctdsp lzo"
2448 on2avc_decoder_select="mdct"
2449 opus_decoder_deps="swresample"
2450 opus_decoder_select="imdct15"
2451 png_decoder_select="zlib"
2452 png_encoder_select="huffyuvencdsp zlib"
2453 prores_decoder_select="blockdsp idctdsp"
2454 prores_encoder_select="fdctdsp"
2455 qcelp_decoder_select="lsp"
2456 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2457 ra_144_decoder_select="audiodsp"
2458 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2459 ralf_decoder_select="golomb"
2460 rawvideo_decoder_select="bswapdsp"
2461 rscc_decoder_select="zlib"
2462 rtjpeg_decoder_select="me_cmp"
2463 rv10_decoder_select="h263_decoder"
2464 rv10_encoder_select="h263_encoder"
2465 rv20_decoder_select="h263_decoder"
2466 rv20_encoder_select="h263_encoder"
2467 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2468 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2469 screenpresso_decoder_select="zlib"
2470 shorten_decoder_select="golomb"
2471 sipr_decoder_select="lsp"
2472 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2473 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2474 sonic_decoder_select="golomb rangecoder"
2475 sonic_encoder_select="golomb rangecoder"
2476 sonic_ls_encoder_select="golomb rangecoder"
2477 sp5x_decoder_select="mjpeg_decoder"
2478 svq1_decoder_select="hpeldsp"
2479 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2480 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2481 svq3_decoder_suggest="zlib"
2482 tak_decoder_select="audiodsp"
2483 tdsc_decoder_select="zlib mjpeg_decoder"
2484 theora_decoder_select="vp3_decoder"
2485 thp_decoder_select="mjpeg_decoder"
2486 tiff_decoder_suggest="zlib lzma"
2487 tiff_encoder_suggest="zlib"
2488 truehd_decoder_select="mlp_parser"
2489 truemotion2_decoder_select="bswapdsp"
2490 truespeech_decoder_select="bswapdsp"
2491 tscc_decoder_select="zlib"
2492 twinvq_decoder_select="mdct lsp sinewin"
2493 txd_decoder_select="texturedsp"
2494 utvideo_decoder_select="bswapdsp"
2495 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2496 vble_decoder_select="huffyuvdsp"
2497 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2498 vc1_qsv_decoder_deps="libmfx"
2499 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2500 vc1image_decoder_select="vc1_decoder"
2501 vorbis_decoder_select="mdct"
2502 vorbis_encoder_select="mdct"
2503 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2504 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2505 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2506 vp6a_decoder_select="vp6_decoder"
2507 vp6f_decoder_select="vp6_decoder"
2508 vp7_decoder_select="h264pred videodsp vp8dsp"
2509 vp8_decoder_select="h264pred videodsp vp8dsp"
2510 vp9_decoder_select="videodsp vp9_parser"
2511 webp_decoder_select="vp8_decoder exif"
2512 wmalossless_decoder_select="llauddsp"
2513 wmapro_decoder_select="mdct sinewin wma_freqs"
2514 wmav1_decoder_select="mdct sinewin wma_freqs"
2515 wmav1_encoder_select="mdct sinewin wma_freqs"
2516 wmav2_decoder_select="mdct sinewin wma_freqs"
2517 wmav2_encoder_select="mdct sinewin wma_freqs"
2518 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2519 wmv1_decoder_select="h263_decoder"
2520 wmv1_encoder_select="h263_encoder"
2521 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2522 wmv2_encoder_select="h263_encoder wmv2dsp"
2523 wmv3_decoder_select="vc1_decoder"
2524 wmv3image_decoder_select="wmv3_decoder"
2525 xma1_decoder_select="wmapro_decoder"
2526 xma2_decoder_select="wmapro_decoder"
2527 zerocodec_decoder_select="zlib"
2528 zlib_decoder_select="zlib"
2529 zlib_encoder_select="zlib"
2530 zmbv_decoder_select="zlib"
2531 zmbv_encoder_select="zlib"
2532
2533 # platform codecs
2534 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2535 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2536
2537 # hardware accelerators
2538 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2539 cuvid_deps="cuda"
2540 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2541 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2542 vaapi_deps="va_va_h"
2543 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2544 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2545 vda_deps="vda_framework pthreads"
2546 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2547 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2548 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2549 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2550 xvmc_deps="X11_extensions_XvMClib_h"
2551
2552 h263_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2553 h263_vaapi_hwaccel_deps="vaapi"
2554 h263_vaapi_hwaccel_select="h263_decoder"
2555 h263_videotoolbox_hwaccel_deps="videotoolbox"
2556 h263_videotoolbox_hwaccel_select="h263_decoder"
2557 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2558 h264_cuvid_hwaccel_deps="cuda cuvid CUVIDH264PICPARAMS"
2559 h264_d3d11va_hwaccel_deps="d3d11va"
2560 h264_d3d11va_hwaccel_select="h264_decoder"
2561 h264_dxva2_hwaccel_deps="dxva2"
2562 h264_dxva2_hwaccel_select="h264_decoder"
2563 h264_mediacodec_decoder_deps="mediacodec"
2564 h264_mediacodec_hwaccel_deps="mediacodec"
2565 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2566 h264_mmal_decoder_deps="mmal"
2567 h264_mmal_decoder_select="mmal"
2568 h264_mmal_hwaccel_deps="mmal"
2569 h264_omx_encoder_deps="omx"
2570 h264_qsv_hwaccel_deps="libmfx"
2571 h264_vaapi_hwaccel_deps="vaapi"
2572 h264_vaapi_hwaccel_select="h264_decoder"
2573 h264_vda_decoder_deps="vda"
2574 h264_vda_decoder_select="h264_decoder"
2575 h264_vda_hwaccel_deps="vda"
2576 h264_vda_hwaccel_select="h264_decoder"
2577 h264_vda_old_hwaccel_deps="vda"
2578 h264_vda_old_hwaccel_select="h264_decoder"
2579 h264_vdpau_decoder_deps="vdpau"
2580 h264_vdpau_decoder_select="h264_decoder"
2581 h264_vdpau_hwaccel_deps="vdpau"
2582 h264_vdpau_hwaccel_select="h264_decoder"
2583 h264_videotoolbox_hwaccel_deps="videotoolbox"
2584 h264_videotoolbox_hwaccel_select="h264_decoder"
2585 hevc_cuvid_hwaccel_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2586 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2587 hevc_d3d11va_hwaccel_select="hevc_decoder"
2588 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2589 hevc_dxva2_hwaccel_select="hevc_decoder"
2590 hevc_qsv_hwaccel_deps="libmfx"
2591 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2592 hevc_vaapi_hwaccel_select="hevc_decoder"
2593 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2594 hevc_vdpau_hwaccel_select="hevc_decoder"
2595 mjpeg_cuvid_hwaccel_deps="cuda cuvid CUVIDJPEGPICPARAMS"
2596 mpeg_vdpau_decoder_deps="vdpau"
2597 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2598 mpeg_xvmc_hwaccel_deps="xvmc"
2599 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2600 mpeg1_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2601 mpeg1_vdpau_decoder_deps="vdpau"
2602 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2603 mpeg1_vdpau_hwaccel_deps="vdpau"
2604 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2605 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2606 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2607 mpeg1_xvmc_hwaccel_deps="xvmc"
2608 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2609 mpeg2_crystalhd_decoder_select="crystalhd"
2610 mpeg2_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2611 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2612 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2613 mpeg2_dxva2_hwaccel_deps="dxva2"
2614 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2615 mpeg2_mmal_decoder_deps="mmal"
2616 mpeg2_mmal_decoder_select="mmal"
2617 mpeg2_mmal_hwaccel_deps="mmal"
2618 mpeg2_qsv_hwaccel_deps="libmfx"
2619 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2620 mpeg2_vaapi_hwaccel_deps="vaapi"
2621 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2622 mpeg2_vdpau_hwaccel_deps="vdpau"
2623 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2624 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2625 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2626 mpeg2_xvmc_hwaccel_deps="xvmc"
2627 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2628 mpeg4_crystalhd_decoder_select="crystalhd"
2629 mpeg4_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2630 mpeg4_mmal_decoder_deps="mmal"
2631 mpeg4_mmal_decoder_select="mmal"
2632 mpeg4_mmal_hwaccel_deps="mmal"
2633 mpeg4_omx_encoder_deps="omx"
2634 mpeg4_vaapi_hwaccel_deps="vaapi"
2635 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2636 mpeg4_vdpau_decoder_deps="vdpau"
2637 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2638 mpeg4_vdpau_hwaccel_deps="vdpau"
2639 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2640 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2641 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2642 msmpeg4_crystalhd_decoder_select="crystalhd"
2643 vc1_crystalhd_decoder_select="crystalhd"
2644 vc1_cuvid_hwaccel_deps="cuda cuvid CUVIDVC1PICPARAMS"
2645 vc1_d3d11va_hwaccel_deps="d3d11va"
2646 vc1_d3d11va_hwaccel_select="vc1_decoder"
2647 vc1_dxva2_hwaccel_deps="dxva2"
2648 vc1_dxva2_hwaccel_select="vc1_decoder"
2649 vc1_mmal_decoder_deps="mmal"
2650 vc1_mmal_decoder_select="mmal"
2651 vc1_mmal_hwaccel_deps="mmal"
2652 vc1_qsv_hwaccel_deps="libmfx"
2653 vc1_qsv_hwaccel_select="qsvdec_vc1"
2654 vc1_vaapi_hwaccel_deps="vaapi"
2655 vc1_vaapi_hwaccel_select="vc1_decoder"
2656 vc1_vdpau_decoder_deps="vdpau"
2657 vc1_vdpau_decoder_select="vc1_decoder"
2658 vc1_vdpau_hwaccel_deps="vdpau"
2659 vc1_vdpau_hwaccel_select="vc1_decoder"
2660 vp8_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2661 vp9_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2662 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2663 vp9_d3d11va_hwaccel_select="vp9_decoder"
2664 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2665 vp9_dxva2_hwaccel_select="vp9_decoder"
2666 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2667 vp9_vaapi_hwaccel_select="vp9_decoder"
2668 wmv3_crystalhd_decoder_select="crystalhd"
2669 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2670 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2671 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2672 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2673 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2674
2675 # hardware-accelerated codecs
2676 omx_deps="dlopen pthreads"
2677 omx_extralibs='$ldl'
2678 qsvdec_select="qsv"
2679 qsvenc_select="qsv"
2680 vaapi_encode_deps="vaapi"
2681
2682 hwupload_cuda_filter_deps="cuda"
2683 scale_npp_filter_deps="cuda libnpp"
2684
2685 nvenc_deps_any="dlopen LoadLibrary"
2686 nvenc_encoder_deps="nvenc"
2687 h263_cuvid_decoder_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2688 h263_cuvid_decoder_select="h263_cuvid_hwaccel"
2689 h264_cuvid_decoder_deps="cuda cuvid CUVIDH264PICPARAMS"
2690 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2691 h264_nvenc_encoder_deps="nvenc"
2692 h264_qsv_decoder_deps="libmfx"
2693 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2694 h264_qsv_encoder_deps="libmfx"
2695 h264_qsv_encoder_select="qsvenc"
2696 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2697 h264_vaapi_encoder_select="vaapi_encode golomb"
2698
2699 hevc_cuvid_decoder_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2700 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2701 hevc_nvenc_encoder_deps="nvenc"
2702 hevc_qsv_decoder_deps="libmfx"
2703 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2704 hevc_qsv_encoder_deps="libmfx"
2705 hevc_qsv_encoder_select="qsvenc"
2706 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2707 hevc_vaapi_encoder_select="vaapi_encode golomb"
2708 mjpeg_cuvid_decoder_deps="cuda cuvid CUVIDJPEGPICPARAMS"
2709 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2710 mpeg1_cuvid_decoder_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2711 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2712 mpeg2_cuvid_decoder_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2713 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2714 mpeg2_qsv_decoder_deps="libmfx"
2715 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2716 mpeg2_qsv_encoder_deps="libmfx"
2717 mpeg2_qsv_encoder_select="qsvenc"
2718 mpeg4_cuvid_decoder_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2719 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2720 nvenc_h264_encoder_deps="nvenc"
2721 nvenc_hevc_encoder_deps="nvenc"
2722
2723 vc1_cuvid_decoder_deps="cuda cuvid CUVIDVC1PICPARAMS"
2724 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2725 vp8_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2726 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2727 vp9_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2728 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2729
2730 # parsers
2731 h264_parser_select="golomb h264dsp"
2732 hevc_parser_select="golomb"
2733 mpegvideo_parser_select="mpegvideo"
2734 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2735 vc1_parser_select="vc1dsp"
2736
2737 # bitstream_filters
2738 mjpeg2jpeg_bsf_select="jpegtables"
2739
2740 # external libraries
2741 aac_at_decoder_deps="audiotoolbox"
2742 ac3_at_decoder_deps="audiotoolbox"
2743 ac3_at_decoder_select="ac3_parser"
2744 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2745 alac_at_decoder_deps="audiotoolbox"
2746 amr_nb_at_decoder_deps="audiotoolbox"
2747 eac3_at_decoder_deps="audiotoolbox"
2748 eac3_at_decoder_select="ac3_parser"
2749 gsm_ms_at_decoder_deps="audiotoolbox"
2750 ilbc_at_decoder_deps="audiotoolbox"
2751 mp1_at_decoder_deps="audiotoolbox"
2752 mp2_at_decoder_deps="audiotoolbox"
2753 mp3_at_decoder_deps="audiotoolbox"
2754 pcm_alaw_at_decoder_deps="audiotoolbox"
2755 pcm_mulaw_at_decoder_deps="audiotoolbox"
2756 qdmc_at_decoder_deps="audiotoolbox"
2757 qdm2_at_decoder_deps="audiotoolbox"
2758 aac_at_encoder_deps="audiotoolbox"
2759 aac_at_encoder_select="audio_frame_queue"
2760 alac_at_encoder_deps="audiotoolbox"
2761 alac_at_encoder_select="audio_frame_queue"
2762 ilbc_at_encoder_deps="audiotoolbox"
2763 ilbc_at_encoder_select="audio_frame_queue"
2764 pcm_alaw_at_encoder_deps="audiotoolbox"
2765 pcm_alaw_at_encoder_select="audio_frame_queue"
2766 pcm_mulaw_at_encoder_deps="audiotoolbox"
2767 pcm_mulaw_at_encoder_select="audio_frame_queue"
2768 chromaprint_muxer_deps="chromaprint"
2769 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2770 libcelt_decoder_deps="libcelt"
2771 libfaac_encoder_deps="libfaac"
2772 libfaac_encoder_select="audio_frame_queue"
2773 libfdk_aac_decoder_deps="libfdk_aac"
2774 libfdk_aac_encoder_deps="libfdk_aac"
2775 libfdk_aac_encoder_select="audio_frame_queue"
2776 libgme_demuxer_deps="libgme"
2777 libgsm_decoder_deps="libgsm"
2778 libgsm_encoder_deps="libgsm"
2779 libgsm_ms_decoder_deps="libgsm"
2780 libgsm_ms_encoder_deps="libgsm"
2781 libilbc_decoder_deps="libilbc"
2782 libilbc_encoder_deps="libilbc"
2783 libkvazaar_encoder_deps="libkvazaar"
2784 libmodplug_demuxer_deps="libmodplug"
2785 libmp3lame_encoder_deps="libmp3lame"
2786 libmp3lame_encoder_select="audio_frame_queue"
2787 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2788 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2789 libopencore_amrnb_encoder_select="audio_frame_queue"
2790 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2791 libopenh264_decoder_deps="libopenh264"
2792 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2793 libopenh264_encoder_deps="libopenh264"
2794 libopenjpeg_decoder_deps="libopenjpeg"
2795 libopenjpeg_encoder_deps="libopenjpeg"
2796 libopenmpt_demuxer_deps="libopenmpt"
2797 libopus_decoder_deps="libopus"
2798 libopus_encoder_deps="libopus"
2799 libopus_encoder_select="audio_frame_queue"
2800 libschroedinger_decoder_deps="libschroedinger"
2801 libschroedinger_encoder_deps="libschroedinger"
2802 libshine_encoder_deps="libshine"
2803 libshine_encoder_select="audio_frame_queue"
2804 libspeex_decoder_deps="libspeex"
2805 libspeex_encoder_deps="libspeex"
2806 libspeex_encoder_select="audio_frame_queue"
2807 libtheora_encoder_deps="libtheora"
2808 libtwolame_encoder_deps="libtwolame"
2809 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2810 libvorbis_decoder_deps="libvorbis"
2811 libvorbis_encoder_deps="libvorbis"
2812 libvorbis_encoder_select="audio_frame_queue"
2813 libvpx_vp8_decoder_deps="libvpx"
2814 libvpx_vp8_encoder_deps="libvpx"
2815 libvpx_vp9_decoder_deps="libvpx"
2816 libvpx_vp9_encoder_deps="libvpx"
2817 libwavpack_encoder_deps="libwavpack"
2818 libwebp_encoder_deps="libwebp"
2819 libwebp_anim_encoder_deps="libwebp"
2820 libx262_encoder_deps="libx262"
2821 libx264_encoder_deps="libx264"
2822 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2823 libx264rgb_encoder_select="libx264_encoder"
2824 libx265_encoder_deps="libx265"
2825 libxavs_encoder_deps="libxavs"
2826 libxvid_encoder_deps="libxvid"
2827 libzvbi_teletext_decoder_deps="libzvbi"
2828 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2829 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2830 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2831 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2832 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2833
2834 # demuxers / muxers
2835 ac3_demuxer_select="ac3_parser"
2836 asf_demuxer_select="riffdec"
2837 asf_o_demuxer_select="riffdec"
2838 asf_muxer_select="riffenc"
2839 asf_stream_muxer_select="asf_muxer"
2840 avi_demuxer_select="iso_media riffdec exif"
2841 avi_muxer_select="riffenc"
2842 avisynth_demuxer_deps="avisynth"
2843 avisynth_demuxer_select="riffdec"
2844 caf_demuxer_select="iso_media riffdec"
2845 dash_muxer_select="mp4_muxer"
2846 dirac_demuxer_select="dirac_parser"
2847 dts_demuxer_select="dca_parser"
2848 dtshd_demuxer_select="dca_parser"
2849 dv_demuxer_select="dvprofile"
2850 dv_muxer_select="dvprofile"
2851 dxa_demuxer_select="riffdec"
2852 eac3_demuxer_select="ac3_parser"
2853 f4v_muxer_select="mov_muxer"
2854 fifo_muxer_deps="threads"
2855 flac_demuxer_select="flac_parser"
2856 hds_muxer_select="flv_muxer"
2857 hls_muxer_select="mpegts_muxer"
2858 image2_alias_pix_demuxer_select="image2_demuxer"
2859 image2_brender_pix_demuxer_select="image2_demuxer"
2860 ipod_muxer_select="mov_muxer"
2861 ismv_muxer_select="mov_muxer"
2862 libnut_demuxer_deps="libnut"
2863 libnut_muxer_deps="libnut"
2864 matroska_audio_muxer_select="matroska_muxer"
2865 matroska_demuxer_select="iso_media riffdec"
2866 matroska_demuxer_suggest="bzlib lzo zlib"
2867 matroska_muxer_select="iso_media riffenc"
2868 mmf_muxer_select="riffenc"
2869 mov_demuxer_select="iso_media riffdec"
2870 mov_demuxer_suggest="zlib"
2871 mov_muxer_select="iso_media riffenc rtpenc_chain"
2872 mp3_demuxer_select="mpegaudio_parser"
2873 mp4_muxer_select="mov_muxer"
2874 mpegts_demuxer_select="iso_media"
2875 mpegts_muxer_select="adts_muxer latm_muxer"
2876 mpegtsraw_demuxer_select="mpegts_demuxer"
2877 mxf_d10_muxer_select="mxf_muxer"
2878 mxf_opatom_muxer_select="mxf_muxer"
2879 nut_muxer_select="riffenc"
2880 nuv_demuxer_select="riffdec"
2881 oga_muxer_select="ogg_muxer"
2882 ogg_demuxer_select="dirac_parse"
2883 ogv_muxer_select="ogg_muxer"
2884 opus_muxer_select="ogg_muxer"
2885 psp_muxer_select="mov_muxer"
2886 rtp_demuxer_select="sdp_demuxer"
2887 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2888 rtsp_demuxer_select="http_protocol rtpdec"
2889 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2890 sap_demuxer_select="sdp_demuxer"
2891 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2892 sdp_demuxer_select="rtpdec"
2893 smoothstreaming_muxer_select="ismv_muxer"
2894 spdif_muxer_select="aac_parser"
2895 spx_muxer_select="ogg_muxer"
2896 swf_demuxer_suggest="zlib"
2897 tak_demuxer_select="tak_parser"
2898 tg2_muxer_select="mov_muxer"
2899 tgp_muxer_select="mov_muxer"
2900 vobsub_demuxer_select="mpegps_demuxer"
2901 w64_demuxer_select="wav_demuxer"
2902 w64_muxer_select="wav_muxer"
2903 wav_demuxer_select="riffdec"
2904 wav_muxer_select="riffenc"
2905 webm_muxer_select="iso_media riffenc"
2906 webm_dash_manifest_demuxer_select="matroska_demuxer"
2907 wtv_demuxer_select="mpegts_demuxer riffdec"
2908 wtv_muxer_select="mpegts_muxer riffenc"
2909 xmv_demuxer_select="riffdec"
2910 xwma_demuxer_select="riffdec"
2911
2912 # indevs / outdevs
2913 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2914 alsa_outdev_deps="alsa_asoundlib_h"
2915 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2916 avfoundation_indev_select="avfoundation"
2917 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2918 caca_outdev_deps="libcaca"
2919 decklink_indev_deps="decklink pthreads"
2920 decklink_indev_extralibs="-lstdc++"
2921 decklink_outdev_deps="decklink pthreads"
2922 decklink_outdev_extralibs="-lstdc++"
2923 dshow_indev_deps="IBaseFilter"
2924 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2925 dv1394_indev_deps="dv1394"
2926 dv1394_indev_select="dv_demuxer"
2927 fbdev_indev_deps="linux_fb_h"
2928 fbdev_outdev_deps="linux_fb_h"
2929 gdigrab_indev_deps="CreateDIBSection"
2930 gdigrab_indev_extralibs="-lgdi32"
2931 gdigrab_indev_select="bmp_decoder"
2932 iec61883_indev_deps="libiec61883"
2933 jack_indev_deps="jack_jack_h"
2934 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2935 lavfi_indev_deps="avfilter"
2936 libcdio_indev_deps="libcdio"
2937 libdc1394_indev_deps="libdc1394"
2938 libv4l2_indev_deps="libv4l2"
2939 openal_indev_deps="openal"
2940 opengl_outdev_deps="opengl"
2941 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2942 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2943 pulse_indev_deps="libpulse"
2944 pulse_outdev_deps="libpulse"
2945 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2946 qtkit_indev_select="qtkit"
2947 sdl_outdev_deps="sdl"
2948 sndio_indev_deps="sndio_h"
2949 sndio_outdev_deps="sndio_h"
2950 v4l_indev_deps="linux_videodev_h"
2951 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2952 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2953 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2954 vfwcap_indev_extralibs="-lavicap32"
2955 x11grab_indev_deps="x11grab"
2956 x11grab_xcb_indev_deps="libxcb"
2957 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2958 xv_outdev_extralibs="-lXv -lX11 -lXext"
2959
2960 # protocols
2961 async_protocol_deps="threads"
2962 bluray_protocol_deps="libbluray"
2963 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2964 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2965 ffrtmpcrypt_protocol_select="tcp_protocol"
2966 ffrtmphttp_protocol_deps="!librtmp_protocol"
2967 ffrtmphttp_protocol_select="http_protocol"
2968 ftp_protocol_select="tcp_protocol"
2969 gopher_protocol_select="network"
2970 http_protocol_select="tcp_protocol"
2971 httpproxy_protocol_select="tcp_protocol"
2972 https_protocol_select="tls_protocol"
2973 icecast_protocol_select="http_protocol"
2974 librtmp_protocol_deps="librtmp"
2975 librtmpe_protocol_deps="librtmp"
2976 librtmps_protocol_deps="librtmp"
2977 librtmpt_protocol_deps="librtmp"
2978 librtmpte_protocol_deps="librtmp"
2979 libsmbclient_protocol_deps="libsmbclient gplv3"
2980 libssh_protocol_deps="libssh"
2981 mmsh_protocol_select="http_protocol"
2982 mmst_protocol_select="network"
2983 rtmp_protocol_deps="!librtmp_protocol"
2984 rtmp_protocol_select="tcp_protocol"
2985 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2986 rtmps_protocol_deps="!librtmp_protocol"
2987 rtmps_protocol_select="tls_protocol"
2988 rtmpt_protocol_select="ffrtmphttp_protocol"
2989 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2990 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2991 rtp_protocol_select="udp_protocol"
2992 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2993 sctp_protocol_select="network"
2994 srtp_protocol_select="rtp_protocol srtp"
2995 tcp_protocol_select="network"
2996 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2997 tls_gnutls_protocol_select="tcp_protocol"
2998 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2999 tls_openssl_protocol_select="tcp_protocol"
3000 tls_schannel_protocol_deps="schannel"
3001 tls_schannel_protocol_select="tcp_protocol"
3002 tls_securetransport_protocol_deps="securetransport"
3003 tls_securetransport_protocol_select="tcp_protocol"
3004 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3005 udp_protocol_select="network"
3006 udplite_protocol_select="network"
3007 unix_protocol_deps="sys_un_h"
3008 unix_protocol_select="network"
3009
3010 # filters
3011 afftfilt_filter_deps="avcodec"
3012 afftfilt_filter_select="fft"
3013 amovie_filter_deps="avcodec avformat"
3014 aresample_filter_deps="swresample"
3015 ass_filter_deps="libass"
3016 asyncts_filter_deps="avresample"
3017 atempo_filter_deps="avcodec"
3018 atempo_filter_select="rdft"
3019 azmq_filter_deps="libzmq"
3020 blackframe_filter_deps="gpl"
3021 boxblur_filter_deps="gpl"
3022 bs2b_filter_deps="libbs2b"
3023 colormatrix_filter_deps="gpl"
3024 cover_rect_filter_deps="avcodec avformat gpl"
3025 cropdetect_filter_deps="gpl"
3026 delogo_filter_deps="gpl"
3027 deshake_filter_select="pixelutils"
3028 drawtext_filter_deps="libfreetype"
3029 ebur128_filter_deps="gpl"
3030 eq_filter_deps="gpl"
3031 fftfilt_filter_deps="avcodec"
3032 fftfilt_filter_select="rdft"
3033 find_rect_filter_deps="avcodec avformat gpl"
3034 firequalizer_filter_deps="avcodec"
3035 firequalizer_filter_select="rdft"
3036 flite_filter_deps="libflite"
3037 framerate_filter_select="pixelutils"
3038 frei0r_filter_deps="frei0r dlopen"
3039 frei0r_src_filter_deps="frei0r dlopen"
3040 fspp_filter_deps="gpl"
3041 geq_filter_deps="gpl"
3042 histeq_filter_deps="gpl"
3043 hqdn3d_filter_deps="gpl"
3044 interlace_filter_deps="gpl"
3045 kerndeint_filter_deps="gpl"
3046 ladspa_filter_deps="ladspa dlopen"
3047 loudnorm_filter_deps="libebur128"
3048 mcdeint_filter_deps="avcodec gpl"
3049 movie_filter_deps="avcodec avformat"
3050 mpdecimate_filter_deps="gpl"
3051 mpdecimate_filter_select="pixelutils"
3052 mptestsrc_filter_deps="gpl"
3053 negate_filter_deps="lut_filter"
3054 nnedi_filter_deps="gpl"
3055 ocr_filter_deps="libtesseract"
3056 ocv_filter_deps="libopencv"
3057 owdenoise_filter_deps="gpl"
3058 pan_filter_deps="swresample"
3059 perspective_filter_deps="gpl"
3060 phase_filter_deps="gpl"
3061 pp7_filter_deps="gpl"
3062 pp_filter_deps="gpl postproc"
3063 pullup_filter_deps="gpl"
3064 removelogo_filter_deps="avcodec avformat swscale"
3065 repeatfields_filter_deps="gpl"
3066 resample_filter_deps="avresample"
3067 rubberband_filter_deps="librubberband"
3068 sab_filter_deps="gpl swscale"
3069 scale2ref_filter_deps="swscale"
3070 scale_filter_deps="swscale"
3071 select_filter_select="pixelutils"
3072 showcqt_filter_deps="avcodec avformat swscale"
3073 showcqt_filter_select="fft"
3074 showfreqs_filter_deps="avcodec"
3075 showfreqs_filter_select="fft"
3076 showspectrum_filter_deps="avcodec"
3077 showspectrum_filter_select="fft"
3078 showspectrumpic_filter_deps="avcodec"
3079 showspectrumpic_filter_select="fft"
3080 smartblur_filter_deps="gpl swscale"
3081 sofalizer_filter_deps="netcdf avcodec"
3082 sofalizer_filter_select="fft"
3083 spectrumsynth_filter_deps="avcodec"
3084 spectrumsynth_filter_select="fft"
3085 spp_filter_deps="gpl avcodec"
3086 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3087 stereo3d_filter_deps="gpl"
3088 subtitles_filter_deps="avformat avcodec libass"
3089 super2xsai_filter_deps="gpl"
3090 pixfmts_super2xsai_test_deps="super2xsai_filter"
3091 tinterlace_filter_deps="gpl"
3092 tinterlace_merge_test_deps="tinterlace_filter"
3093 tinterlace_pad_test_deps="tinterlace_filter"
3094 uspp_filter_deps="gpl avcodec"
3095 vaguedenoiser_filter_deps="gpl"
3096 vidstabdetect_filter_deps="libvidstab"
3097 vidstabtransform_filter_deps="libvidstab"
3098 zmq_filter_deps="libzmq"
3099 zoompan_filter_deps="swscale"
3100 zscale_filter_deps="libzimg"
3101 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3102
3103 # examples
3104 avcodec_example_deps="avcodec avutil"
3105 avio_dir_cmd="avformat avutil"
3106 avio_reading="avformat avcodec avutil"
3107 decoding_encoding_example_deps="avcodec avformat avutil"
3108 demuxing_decoding_example_deps="avcodec avformat avutil"
3109 extract_mvs_example_deps="avcodec avformat avutil"
3110 filter_audio_example_deps="avfilter avutil"
3111 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3112 filtering_video_example_deps="avfilter avcodec avformat avutil"
3113 metadata_example_deps="avformat avutil"
3114 muxing_example_deps="avcodec avformat avutil swscale"
3115 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3116 remuxing_example_deps="avcodec avformat avutil"
3117 resampling_audio_example_deps="avutil swresample"
3118 scaling_video_example_deps="avutil swscale"
3119 transcode_aac_example_deps="avcodec avformat swresample"
3120 transcoding_example_deps="avfilter avcodec avformat avutil"
3121
3122 # libraries, in linking order
3123 avcodec_deps="avutil"
3124 avdevice_deps="avformat avcodec avutil"
3125 avfilter_deps="avutil"
3126 avformat_deps="avcodec avutil"
3127 avresample_deps="avutil"
3128 postproc_deps="avutil gpl"
3129 swresample_deps="avutil"
3130 swscale_deps="avutil"
3131
3132 # programs
3133 ffmpeg_deps="avcodec avfilter avformat swresample"
3134 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3135                null_filter
3136                setpts_filter trim_filter"
3137 ffplay_deps="avcodec avformat swscale swresample sdl"
3138 ffplay_libs='$sdl_libs'
3139 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3140 ffprobe_deps="avcodec avformat"
3141 ffserver_deps="avformat fork sarestart"
3142 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3143
3144 # documentation
3145 podpages_deps="perl"
3146 manpages_deps="perl pod2man"
3147 htmlpages_deps="perl"
3148 htmlpages_deps_any="makeinfo_html texi2html"
3149 txtpages_deps="perl makeinfo"
3150 doc_deps_any="manpages htmlpages podpages txtpages"
3151
3152 # default parameters
3153
3154 logfile="config.log"
3155
3156 # installation paths
3157 prefix_default="/usr/local"
3158 bindir_default='${prefix}/bin'
3159 datadir_default='${prefix}/share/ffmpeg'
3160 docdir_default='${prefix}/share/doc/ffmpeg'
3161 incdir_default='${prefix}/include'
3162 libdir_default='${prefix}/lib'
3163 mandir_default='${prefix}/share/man'
3164
3165 # toolchain
3166 ar_default="ar"
3167 cc_default="gcc"
3168 cxx_default="g++"
3169 host_cc_default="gcc"
3170 cp_f="cp -f"
3171 doxygen_default="doxygen"
3172 install="install"
3173 ln_s_default="ln -s -f"
3174 nm_default="nm -g"
3175 objformat="elf"
3176 pkg_config_default=pkg-config
3177 ranlib_default="ranlib"
3178 strip_default="strip"
3179 version_script='--version-script'
3180 yasmexe_default="yasm"
3181 windres_default="windres"
3182
3183 # OS
3184 target_os_default=$(tolower $(uname -s))
3185 host_os=$target_os_default
3186
3187 # machine
3188 if test "$target_os_default" = aix; then
3189     arch_default=$(uname -p)
3190     strip_default="strip -X32_64"
3191 else
3192     arch_default=$(uname -m)
3193 fi
3194 cpu="generic"
3195 intrinsics="none"
3196
3197 # configurable options
3198 enable $PROGRAM_LIST
3199 enable $DOCUMENT_LIST
3200 enable $EXAMPLE_LIST
3201 enable $(filter_out avresample $LIBRARY_LIST)
3202 enable stripping
3203
3204 enable asm
3205 enable debug
3206 enable doc
3207 enable faan faandct faanidct
3208 enable optimizations
3209 enable runtime_cpudetect
3210 enable safe_bitstream_reader
3211 enable static
3212 enable swscale_alpha
3213 enable valgrind_backtrace
3214
3215 sws_max_filter_size_default=256
3216 set_default sws_max_filter_size
3217
3218 # Enable platform codecs by default.
3219 enable audiotoolbox
3220
3221 # Enable hwaccels by default.
3222 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3223 enable xlib
3224
3225 enable nvenc vda_framework videotoolbox videotoolbox_encoder
3226
3227 # build settings
3228 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3229 LIBPREF="lib"
3230 LIBSUF=".a"
3231 FULLNAME='$(NAME)$(BUILDSUF)'
3232 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3233 SLIBPREF="lib"
3234 SLIBSUF=".so"
3235 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3236 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3237 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3238 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3239 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3240 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3241 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3242
3243 asflags_filter=echo
3244 cflags_filter=echo
3245 ldflags_filter=echo
3246
3247 AS_C='-c'
3248 AS_O='-o $@'
3249 CC_C='-c'
3250 CC_E='-E -o $@'
3251 CC_O='-o $@'
3252 CXX_C='-c'
3253 CXX_O='-o $@'
3254 OBJCC_C='-c'
3255 OBJCC_E='-E -o $@'
3256 OBJCC_O='-o $@'
3257 LD_O='-o $@'
3258 LD_LIB='-l%'
3259 LD_PATH='-L'
3260 HOSTCC_C='-c'
3261 HOSTCC_E='-E -o $@'
3262 HOSTCC_O='-o $@'
3263 HOSTLD_O='-o $@'
3264
3265 host_libs='-lm'
3266 host_cflags_filter=echo
3267 host_ldflags_filter=echo
3268
3269 target_path='$(CURDIR)'
3270
3271 # since the object filename is not given with the -MM flag, the compiler
3272 # is only able to print the basename, and we must add the path ourselves
3273 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3274 DEPFLAGS='-MM'
3275
3276 # find source path
3277 if test -f configure; then
3278     source_path=.
3279 else
3280     source_path=$(cd $(dirname "$0"); pwd)
3281     case "$source_path" in
3282         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3283     esac
3284     test -e "$source_path/config.h" &&
3285         die "Out of tree builds are impossible with config.h in source dir."
3286 fi
3287
3288 for v in "$@"; do
3289     r=${v#*=}
3290     l=${v%"$r"}
3291     r=$(sh_quote "$r")
3292     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3293 done
3294
3295 find_things(){
3296     thing=$1
3297     pattern=$2
3298     file=$source_path/$3
3299     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3300 }
3301
3302 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3303 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3304 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3305 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3306 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3307 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3308 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3309 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3310 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3311
3312 find_things_extern(){
3313     thing=$1
3314     pattern=$2
3315     file=$source_path/$3
3316     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3317 }
3318
3319 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3320 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3321
3322 ALL_COMPONENTS="
3323     $BSF_LIST
3324     $DECODER_LIST
3325     $DEMUXER_LIST
3326     $ENCODER_LIST
3327     $FILTER_LIST
3328     $HWACCEL_LIST
3329     $INDEV_LIST
3330     $MUXER_LIST
3331     $OUTDEV_LIST
3332     $PARSER_LIST
3333     $PROTOCOL_LIST
3334 "
3335
3336 for n in $COMPONENT_LIST; do
3337     v=$(toupper ${n%s})_LIST
3338     eval enable \$$v
3339     eval ${n}_if_any="\$$v"
3340 done
3341
3342 enable $ARCH_EXT_LIST
3343
3344 die_unknown(){
3345     echo "Unknown option \"$1\"."
3346     echo "See $0 --help for available options."
3347     exit 1
3348 }
3349
3350 print_in_columns() {
3351     cols=$(expr $ncols / 24)
3352     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3353 }
3354
3355 show_list() {
3356     suffix=_$1
3357     shift
3358     echo $* | sed s/$suffix//g | print_in_columns
3359     exit 0
3360 }
3361
3362 rand_list(){
3363     IFS=', '
3364     set -- $*
3365     unset IFS
3366     for thing; do
3367         comp=${thing%:*}
3368         prob=${thing#$comp}
3369         prob=${prob#:}
3370         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3371         echo "prob ${prob:-0.5}"
3372         printf '%s\n' $comp
3373     done
3374 }
3375
3376 do_random(){
3377     action=$1
3378     shift
3379     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3380     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3381 }
3382
3383 for opt do
3384     optval="${opt#*=}"
3385     case "$opt" in
3386         --extra-ldflags=*)
3387             add_ldflags $optval
3388         ;;
3389         --extra-ldexeflags=*)
3390             add_ldexeflags $optval
3391         ;;
3392         --extra-ldlibflags=*)
3393             add_ldlibflags $optval
3394         ;;
3395         --extra-libs=*)
3396             add_extralibs $optval
3397         ;;
3398         --disable-devices)
3399             disable $INDEV_LIST $OUTDEV_LIST
3400         ;;
3401         --enable-debug=*)
3402             debuglevel="$optval"
3403         ;;
3404         --disable-programs)
3405             disable $PROGRAM_LIST
3406         ;;
3407         --disable-everything)
3408             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3409         ;;
3410         --disable-all)
3411             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3412             disable $LIBRARY_LIST $PROGRAM_LIST doc
3413             enable avutil
3414         ;;
3415         --enable-random|--disable-random)
3416             action=${opt%%-random}
3417             do_random ${action#--} $COMPONENT_LIST
3418         ;;
3419         --enable-random=*|--disable-random=*)
3420             action=${opt%%-random=*}
3421             do_random ${action#--} $optval
3422         ;;
3423         --enable-*=*|--disable-*=*)
3424             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3425             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3426             eval list=\$$(toupper $thing)_LIST
3427             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3428             list=$(filter "$name" $list)
3429             [ "$list" = "" ] && warn "Option $opt did not match anything"
3430             $action $list
3431         ;;
3432         --enable-?*|--disable-?*)
3433             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3434             if is_in $option $COMPONENT_LIST; then
3435                 test $action = disable && action=unset
3436                 eval $action \$$(toupper ${option%s})_LIST
3437             elif is_in $option $CMDLINE_SELECT; then
3438                 $action $option
3439             else
3440                 die_unknown $opt
3441             fi
3442         ;;
3443         --list-*)
3444             NAME="${opt#--list-}"
3445             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3446             NAME=${NAME%s}
3447             eval show_list $NAME \$$(toupper $NAME)_LIST
3448         ;;
3449         --help|-h) show_help
3450         ;;
3451         --fatal-warnings) enable fatal_warnings
3452         ;;
3453         *)
3454             optname="${opt%%=*}"
3455             optname="${optname#--}"
3456             optname=$(echo "$optname" | sed 's/-/_/g')
3457             if is_in $optname $CMDLINE_SET; then
3458                 eval $optname='$optval'
3459             elif is_in $optname $CMDLINE_APPEND; then
3460                 append $optname "$optval"
3461             else
3462                 die_unknown $opt
3463             fi
3464         ;;
3465     esac
3466 done
3467
3468 for e in $env; do
3469     eval "export $e"
3470 done
3471
3472 disabled logging && logfile=/dev/null
3473
3474 # Disable all the library-specific components if the library itself
3475 # is disabled, see AVCODEC_LIST and following _LIST variables.
3476
3477 disable_components(){
3478     disabled ${1} && disable $(
3479         eval components="\$$(toupper ${1})_COMPONENTS"
3480         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3481     )
3482 }
3483
3484 map 'disable_components $v' $LIBRARY_LIST
3485
3486 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3487 set >> $logfile
3488
3489 test -n "$valgrind" && toolchain="valgrind-memcheck"
3490
3491 case "$toolchain" in
3492     *-asan)
3493         cc_default="${toolchain%-asan}"
3494         add_cflags  -fsanitize=address
3495         add_ldflags -fsanitize=address
3496     ;;
3497     *-msan)
3498         cc_default="${toolchain%-msan}"
3499         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3500         add_ldflags -fsanitize=memory
3501     ;;
3502     *-tsan)
3503         cc_default="${toolchain%-tsan}"
3504         add_cflags  -fsanitize=thread -pie
3505         add_ldflags -fsanitize=thread -pie
3506         case "$toolchain" in
3507             gcc-tsan)
3508                 add_cflags  -fPIC
3509                 add_ldflags -fPIC
3510                 ;;
3511         esac
3512     ;;
3513     *-usan)
3514         cc_default="${toolchain%-usan}"
3515         add_cflags  -fsanitize=undefined
3516         add_ldflags -fsanitize=undefined
3517     ;;
3518     valgrind-*)
3519         target_exec_default="valgrind"
3520         case "$toolchain" in
3521             valgrind-massif)
3522                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3523                 ;;
3524             valgrind-memcheck)
3525                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3526                 ;;
3527         esac
3528     ;;
3529     msvc)
3530         # Check whether the current MSVC version needs the C99 converter.
3531         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3532         # support enough of C99 to build ffmpeg. Default to the new
3533         # behaviour if the regexp was unable to match anything, since this
3534         # successfully parses the version number of existing supported
3535         # versions that require the converter (MSVC 2010 and 2012).
3536         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3537         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3538             cc_default="cl"
3539         else
3540             cc_default="c99wrap cl"
3541         fi
3542         ld_default="$source_path/compat/windows/mslink"
3543         nm_default="dumpbin -symbols"
3544         ar_default="lib"
3545         case "$arch" in
3546         arm*)
3547             as_default="armasm"
3548             ;;
3549         esac
3550         target_os_default="win32"
3551         # Use a relative path for TMPDIR. This makes sure all the
3552         # ffconf temp files are written with a relative path, avoiding
3553         # issues with msys/win32 path conversion for MSVC parameters
3554         # such as -Fo<file> or -out:<file>.
3555         TMPDIR=.
3556     ;;
3557     icl)
3558         cc_default="icl"
3559         ld_default="xilink"
3560         nm_default="dumpbin -symbols"
3561         ar_default="xilib"
3562         target_os_default="win32"
3563         TMPDIR=.
3564     ;;
3565     gcov)
3566         add_cflags  -fprofile-arcs -ftest-coverage
3567         add_ldflags -fprofile-arcs -ftest-coverage
3568     ;;
3569     llvm-cov)
3570         add_cflags -fprofile-arcs -ftest-coverage
3571         add_ldflags --coverage
3572     ;;
3573     hardened)
3574         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3575         add_cflags   -fno-strict-overflow -fstack-protector-all
3576         add_ldflags  -Wl,-z,relro -Wl,-z,now
3577     ;;
3578     ?*)
3579         die "Unknown toolchain $toolchain"
3580     ;;
3581 esac
3582
3583 test -n "$cross_prefix" && enable cross_compile
3584
3585 if enabled cross_compile; then
3586     test -n "$arch" && test -n "$target_os" ||
3587         die "Must specify target arch and OS when cross-compiling"
3588 fi
3589
3590 ar_default="${cross_prefix}${ar_default}"
3591 cc_default="${cross_prefix}${cc_default}"
3592 cxx_default="${cross_prefix}${cxx_default}"
3593 nm_default="${cross_prefix}${nm_default}"
3594 pkg_config_default="${cross_prefix}${pkg_config_default}"
3595 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3596     ranlib_default="${cross_prefix}${ranlib_default} -D"
3597 else
3598     ranlib_default="${cross_prefix}${ranlib_default}"
3599 fi
3600 strip_default="${cross_prefix}${strip_default}"
3601 windres_default="${cross_prefix}${windres_default}"
3602
3603 sysinclude_default="${sysroot}/usr/include"
3604
3605 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3606     target_exec target_os yasmexe
3607 enabled cross_compile || host_cc_default=$cc
3608 set_default host_cc
3609
3610 pkg_config_fail_message=""
3611 if ! $pkg_config --version >/dev/null 2>&1; then
3612     warn "$pkg_config not found, library detection may fail."
3613     pkg_config=false
3614 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3615     pkg_config_fail_message="
3616 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3617 fi
3618
3619 if test $doxygen != $doxygen_default && \
3620   ! $doxygen --version >/dev/null 2>&1; then
3621     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3622 fi
3623
3624 exesuf() {
3625     case $1 in
3626         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3627     esac
3628 }
3629
3630 EXESUF=$(exesuf $target_os)
3631 HOSTEXESUF=$(exesuf $host_os)
3632
3633 # set temporary file name
3634 : ${TMPDIR:=$TEMPDIR}
3635 : ${TMPDIR:=$TMP}
3636 : ${TMPDIR:=/tmp}
3637
3638 if [ -n "$tempprefix" ] ; then
3639     mktemp(){
3640         echo $tempprefix.${HOSTNAME}.${UID}
3641     }
3642 elif ! check_cmd mktemp -u XXXXXX; then
3643     # simple replacement for missing mktemp
3644     # NOT SAFE FOR GENERAL USE
3645     mktemp(){
3646         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3647     }
3648 fi
3649
3650 tmpfile(){
3651     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3652         (set -C; exec > $tmp) 2>/dev/null ||
3653         die "Unable to create temporary file in $TMPDIR."
3654     append TMPFILES $tmp
3655     eval $1=$tmp
3656 }
3657
3658 trap 'rm -f -- $TMPFILES' EXIT
3659
3660 tmpfile TMPASM .asm
3661 tmpfile TMPC   .c
3662 tmpfile TMPCPP .cpp
3663 tmpfile TMPE   $EXESUF
3664 tmpfile TMPH   .h
3665 tmpfile TMPM   .m
3666 tmpfile TMPO   .o
3667 tmpfile TMPS   .S
3668 tmpfile TMPSH  .sh
3669 tmpfile TMPV   .ver
3670
3671 unset -f mktemp
3672
3673 chmod +x $TMPE
3674
3675 # make sure we can execute files in $TMPDIR
3676 cat > $TMPSH 2>> $logfile <<EOF
3677 #! /bin/sh
3678 EOF
3679 chmod +x $TMPSH >> $logfile 2>&1
3680 if ! $TMPSH >> $logfile 2>&1; then
3681     cat <<EOF
3682 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3683 variable to another directory and make sure that it is not mounted noexec.
3684 EOF
3685     die "Sanity test failed."
3686 fi
3687
3688 armasm_flags(){
3689     for flag; do
3690         case $flag in
3691             # Filter out MSVC cl.exe options from cflags that shouldn't
3692             # be passed to gas-preprocessor
3693             -M[TD]*)                                            ;;
3694             *)                  echo $flag                      ;;
3695         esac
3696    done
3697 }
3698
3699 ccc_flags(){
3700     for flag; do
3701         case $flag in
3702             -std=c99)           echo -c99                       ;;
3703             -mcpu=*)            echo -arch ${flag#*=}           ;;
3704             -mieee)             echo -ieee                      ;;
3705             -O*|-fast)          echo $flag                      ;;
3706             -fno-math-errno)    echo -assume nomath_errno       ;;
3707             -g)                 echo -g3                        ;;
3708             -Wall)              echo -msg_enable level2         ;;
3709             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3710             -Wl,*)              echo $flag                      ;;
3711             -f*|-W*)                                            ;;
3712             *)                  echo $flag                      ;;
3713         esac
3714    done
3715 }
3716
3717 cparser_flags(){
3718     for flag; do
3719         case $flag in
3720             -Wno-switch)             echo -Wno-switch-enum ;;
3721             -Wno-format-zero-length) ;;
3722             -Wdisabled-optimization) ;;
3723             -Wno-pointer-sign)       echo -Wno-other ;;
3724             *)                       echo $flag ;;
3725         esac
3726     done
3727 }
3728
3729 msvc_common_flags(){
3730     for flag; do
3731         case $flag in
3732             # In addition to specifying certain flags under the compiler
3733             # specific filters, they must be specified here as well or else the
3734             # generic catch all at the bottom will print the original flag.
3735             -Wall)                ;;
3736             -std=c99)             ;;
3737             # Common flags
3738             -fomit-frame-pointer) ;;
3739             -g)                   echo -Z7 ;;
3740             -fno-math-errno)      ;;
3741             -fno-common)          ;;
3742             -fno-signed-zeros)    ;;
3743             -fPIC)                ;;
3744             -mthumb)              ;;
3745             -march=*)             ;;
3746             -lz)                  echo zlib.lib ;;
3747             -lavifil32)           echo vfw32.lib ;;
3748             -lavicap32)           echo vfw32.lib user32.lib ;;
3749             -lx264)               echo libx264.lib ;;
3750             -l*)                  echo ${flag#-l}.lib ;;
3751             -LARGEADDRESSAWARE)   echo $flag ;;
3752             -L*)                  echo -libpath:${flag#-L} ;;
3753             *)                    echo $flag ;;
3754         esac
3755     done
3756 }
3757
3758 msvc_flags(){
3759     msvc_common_flags "$@"
3760     for flag; do
3761         case $flag in
3762             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3763                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3764                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3765                                        -wd4307 \
3766                                        -wd4273 -wd4554 -wd4701 ;;
3767         esac
3768     done
3769 }
3770
3771 icl_flags(){
3772     msvc_common_flags "$@"
3773     for flag; do
3774         case $flag in
3775             # Despite what Intel's documentation says -Wall, which is supported
3776             # on Windows, does enable remarks so disable them here.
3777             -Wall)                echo $flag -Qdiag-disable:remark ;;
3778             -std=c99)             echo -Qstd=c99 ;;
3779             -flto)                echo -ipo ;;
3780         esac
3781     done
3782 }
3783
3784 icc_flags(){
3785     for flag; do
3786         case $flag in
3787             -flto)                echo -ipo ;;
3788             *)                    echo $flag ;;
3789         esac
3790     done
3791 }
3792
3793 pgi_flags(){
3794     for flag; do
3795         case $flag in
3796             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3797             -fomit-frame-pointer) echo -Mnoframe ;;
3798             -g)                   echo -gopt ;;
3799             *)                    echo $flag ;;
3800         esac
3801     done
3802 }
3803
3804 suncc_flags(){
3805     for flag; do
3806         case $flag in
3807             -march=*|-mcpu=*)
3808                 case "${flag#*=}" in
3809                     native)                   echo -xtarget=native       ;;
3810                     v9|niagara)               echo -xarch=sparc          ;;
3811                     ultrasparc)               echo -xarch=sparcvis       ;;
3812                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3813                     i586|pentium)             echo -xchip=pentium        ;;
3814                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3815                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3816                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3817                     pentium4*)          echo -xtarget=pentium4           ;;
3818                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3819                     *-sse3)             echo -xarch=sse3                 ;;
3820                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3821                     bonnell)                   echo -xarch=ssse3         ;;
3822                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3823                     westmere)                  echo -xtarget=westmere    ;;
3824                     silvermont)                echo -xarch=sse4_2        ;;
3825                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3826                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3827                                                echo -xarch=avx           ;;
3828                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3829                     btver1)                    echo -xarch=amdsse4a      ;;
3830                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3831                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3832                     k8|opteron|athlon64|athlon-fx)
3833                                                echo -xarch=sse2a         ;;
3834                     athlon*)                   echo -xarch=pentium_proa  ;;
3835                 esac
3836                 ;;
3837             -std=c99)             echo -xc99              ;;
3838             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3839             -fPIC)                echo -KPIC -xcode=pic32 ;;
3840             -W*,*)                echo $flag              ;;
3841             -f*-*|-W*|-mimpure-text)                      ;;
3842             -shared)              echo -G                 ;;
3843             *)                    echo $flag              ;;
3844         esac
3845     done
3846 }
3847
3848 tms470_flags(){
3849     for flag; do
3850         case $flag in
3851             -march=*|-mcpu=*)
3852                 case "${flag#*=}" in
3853                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3854                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3855                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3856                     armv6*|arm11*)          echo -mv=6   ;;
3857                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3858                                             echo -mv=5e  ;;
3859                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3860                 esac
3861                 ;;
3862             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3863             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3864             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3865             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3866             -msoft-float)   echo --float_support=vfplib       ;;
3867             -O[0-3]|-mf=*)  echo $flag                        ;;
3868             -g)             echo -g -mn                       ;;
3869             -pds=*)         echo $flag                        ;;
3870             -D*|-I*)        echo $flag                        ;;
3871             --gcc|--abi=*)  echo $flag                        ;;
3872             -me)            echo $flag                        ;;
3873         esac
3874     done
3875 }
3876
3877 probe_cc(){
3878     pfx=$1
3879     _cc=$2
3880     first=$3
3881
3882     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3883     unset _ld_o _ldflags _ld_lib _ld_path
3884     unset _depflags _DEPCMD _DEPFLAGS
3885     _flags_filter=echo
3886
3887     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3888         true # no-op to avoid reading stdin in following checks
3889     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3890         _type=llvm_gcc
3891         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3892         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3893         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3894         _cflags_speed='-O3'
3895         _cflags_size='-Os'
3896     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3897         _type=gcc
3898         gcc_version=$($_cc --version | head -n1)
3899         gcc_basever=$($_cc -dumpversion)
3900         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3901         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3902         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3903         case $gcc_basever in
3904             2) ;;
3905             2.*) ;;
3906             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3907         esac
3908         if [ "$first" = true ]; then
3909             case $gcc_basever in
3910                 4.2*)
3911                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3912             esac
3913         fi
3914         _cflags_speed='-O3'
3915         _cflags_size='-Os'
3916     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3917         _type=icc
3918         _ident=$($_cc --version | head -n1)
3919         _depflags='-MMD'
3920         _cflags_speed='-O3'
3921         _cflags_size='-Os'
3922         _cflags_noopt='-O1'
3923         _flags_filter=icc_flags
3924     elif $_cc -v 2>&1 | grep -q xlc; then
3925         _type=xlc
3926         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3927         _cflags_speed='-O5'
3928         _cflags_size='-O5 -qcompact'
3929     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3930         _type=ccc
3931         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3932         _DEPFLAGS='-M'
3933         _cflags_speed='-fast'
3934         _cflags_size='-O1'
3935         _flags_filter=ccc_flags
3936     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3937         test -d "$sysroot" || die "No valid sysroot specified."
3938         _type=armcc
3939         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3940         armcc_conf="$PWD/armcc.conf"
3941         $_cc --arm_linux_configure                 \
3942              --arm_linux_config_file="$armcc_conf" \
3943              --configure_sysroot="$sysroot"        \
3944              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3945              die "Error creating armcc configuration file."
3946         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3947         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3948         as_default="${cross_prefix}gcc"
3949         _depflags='-MMD'
3950         _cflags_speed='-O3'
3951         _cflags_size='-Os'
3952     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3953         _type=tms470
3954         _ident=$($_cc -version | head -n1 | tr -s ' ')
3955         _flags='--gcc --abi=eabi -me'
3956         _cc_e='-ppl -fe=$@'
3957         _cc_o='-fe=$@'
3958         _depflags='-ppa -ppd=$(@:.o=.d)'
3959         _cflags_speed='-O3 -mf=5'
3960         _cflags_size='-O3 -mf=2'
3961         _flags_filter=tms470_flags
3962     elif $_cc -v 2>&1 | grep -q clang; then
3963         _type=clang
3964         _ident=$($_cc --version 2>/dev/null | head -n1)
3965         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3966         _cflags_speed='-O3'
3967         _cflags_size='-Os'
3968     elif $_cc -V 2>&1 | grep -q Sun; then
3969         _type=suncc
3970         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3971         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3972         _DEPFLAGS='-xM1 -xc99'
3973         _ldflags='-std=c99'
3974         _cflags_speed='-O5'
3975         _cflags_size='-O5 -xspace'
3976         _flags_filter=suncc_flags
3977     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3978         _type=pathscale
3979         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3980         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3981         _cflags_speed='-O2'
3982         _cflags_size='-Os'
3983         _flags_filter='filter_out -Wdisabled-optimization'
3984     elif $_cc -v 2>&1 | grep -q Open64; then
3985         _type=open64
3986         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3987         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3988         _cflags_speed='-O2'
3989         _cflags_size='-Os'
3990         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3991     elif $_cc -V 2>&1 | grep -q Portland; then
3992         _type=pgi
3993         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3994         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3995         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3996         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3997         _cflags_noopt="-O"
3998         _flags_filter=pgi_flags
3999     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4000         _type=armasm
4001         _ident=$($_cc | head -n1)
4002         # 4509: "This form of conditional instruction is deprecated"
4003         _flags="-nologo -ignore 4509"
4004         _flags_filter=armasm_flags
4005     elif $_cc 2>&1 | grep -q Intel; then
4006         _type=icl
4007         _ident=$($_cc 2>&1 | head -n1)
4008         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4009         # Not only is O3 broken on 13.x+ but it is slower on all previous
4010         # versions (tested) as well.
4011         _cflags_speed="-O2"
4012         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4013         if $_cc 2>&1 | grep -q Linker; then
4014             _ld_o='-out:$@'
4015         else
4016             _ld_o='-Fe$@'
4017         fi
4018         _cc_o='-Fo$@'
4019         _cc_e='-P'
4020         _flags_filter=icl_flags
4021         _ld_lib='lib%.a'
4022         _ld_path='-libpath:'
4023         # -Qdiag-error to make icl error when seeing certain unknown arguments
4024         _flags='-nologo -Qdiag-error:4044,10157'
4025         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4026         # with MSVC which enables it by default.
4027         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4028         disable stripping
4029     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4030         _type=msvc
4031         _ident=$($_cc 2>&1 | head -n1)
4032         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4033         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4034         _cflags_speed="-O2"
4035         _cflags_size="-O1"
4036         if $_cc -nologo- 2>&1 | grep -q Linker; then
4037             _ld_o='-out:$@'
4038         else
4039             _ld_o='-Fe$@'
4040         fi
4041         _cc_o='-Fo$@'
4042         _cc_e='-P -Fi$@'
4043         _flags_filter=msvc_flags
4044         _ld_lib='lib%.a'
4045         _ld_path='-libpath:'
4046         _flags='-nologo'
4047         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4048         disable stripping
4049     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4050         _type=cparser
4051         _ident=$($_cc --version | head -n1)
4052         _depflags='-MMD'
4053         _cflags_speed='-O4'
4054         _cflags_size='-O2'
4055         _flags_filter=cparser_flags
4056     fi
4057
4058     eval ${pfx}_type=\$_type
4059     eval ${pfx}_ident=\$_ident
4060 }
4061
4062 set_ccvars(){
4063     eval ${1}_C=\${_cc_c-\${${1}_C}}
4064     eval ${1}_E=\${_cc_e-\${${1}_E}}
4065     eval ${1}_O=\${_cc_o-\${${1}_O}}
4066
4067     if [ -n "$_depflags" ]; then
4068         eval ${1}_DEPFLAGS=\$_depflags
4069     else
4070         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4071         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4072         eval DEP${1}FLAGS=\$_flags
4073     fi
4074 }
4075
4076 probe_cc cc "$cc" "true"
4077 cflags_filter=$_flags_filter
4078 cflags_speed=$_cflags_speed
4079 cflags_size=$_cflags_size
4080 cflags_noopt=$_cflags_noopt
4081 add_cflags $_flags $_cflags
4082 cc_ldflags=$_ldflags
4083 set_ccvars CC
4084
4085 probe_cc hostcc "$host_cc"
4086 host_cflags_filter=$_flags_filter
4087 add_host_cflags  $_flags $_cflags
4088 set_ccvars HOSTCC
4089
4090 test -n "$cc_type" && enable $cc_type ||
4091     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4092
4093 : ${as_default:=$cc}
4094 : ${objcc_default:=$cc}
4095 : ${dep_cc_default:=$cc}
4096 : ${ld_default:=$cc}
4097 : ${host_ld_default:=$host_cc}
4098 set_default ar as objcc dep_cc ld ln_s host_ld windres
4099
4100 probe_cc as "$as"
4101 asflags_filter=$_flags_filter
4102 add_asflags $_flags $_cflags
4103 set_ccvars AS
4104
4105 probe_cc objcc "$objcc"
4106 objcflags_filter=$_flags_filter
4107 add_objcflags $_flags $_cflags
4108 set_ccvars OBJC
4109
4110 probe_cc ld "$ld"
4111 ldflags_filter=$_flags_filter
4112 add_ldflags $_flags $_ldflags
4113 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4114 LD_O=${_ld_o-$LD_O}
4115 LD_LIB=${_ld_lib-$LD_LIB}
4116 LD_PATH=${_ld_path-$LD_PATH}
4117
4118 probe_cc hostld "$host_ld"
4119 host_ldflags_filter=$_flags_filter
4120 add_host_ldflags $_flags $_ldflags
4121 HOSTLD_O=${_ld_o-$HOSTLD_O}
4122
4123 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4124     probe_cc depcc "$dep_cc"
4125     CCDEP=${_DEPCMD:-$DEPCMD}
4126     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4127     DEPCCFLAGS=$_flags
4128 fi
4129
4130 if $ar 2>&1 | grep -q Microsoft; then
4131     arflags="-nologo"
4132     ar_o='-out:$@'
4133 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4134     arflags="rq"
4135     ar_o='$@'
4136 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4137     arflags='-Xany -r -c'
4138     ar_o='$@'
4139 elif $ar 2>&1 | grep -q "\[D\] "; then
4140     arflags="rcD"
4141     ar_o='$@'
4142 else
4143     arflags="rc"
4144     ar_o='$@'
4145 fi
4146
4147 add_cflags $extra_cflags
4148 add_cxxflags $extra_cxxflags
4149 add_objcflags $extra_objcflags
4150 add_asflags $extra_cflags
4151
4152 if test -n "$sysroot"; then
4153     case "$cc_type" in
4154         gcc|llvm_gcc|clang)
4155             add_cppflags --sysroot="$sysroot"
4156             add_ldflags --sysroot="$sysroot"
4157 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4158             add_cppflags -isysroot "$sysroot"
4159             add_ldflags -isysroot "$sysroot"
4160         ;;
4161         tms470)
4162             add_cppflags -I"$sysinclude"
4163             add_ldflags  --sysroot="$sysroot"
4164         ;;
4165     esac
4166 fi
4167
4168 if test "$cpu" = host; then
4169     enabled cross_compile &&
4170         die "--cpu=host makes no sense when cross-compiling."
4171
4172     case "$cc_type" in
4173         gcc|llvm_gcc)
4174             check_native(){
4175                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4176                 sed -n "/cc1.*$1=/{
4177                             s/.*$1=\\([^ ]*\\).*/\\1/
4178                             p
4179                             q
4180                         }" $TMPE
4181             }
4182             cpu=$(check_native -march || check_native -mcpu)
4183         ;;
4184         clang)
4185             check_native(){
4186                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4187                 sed -n "/cc1.*-target-cpu /{
4188                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4189                             p
4190                             q
4191                         }" $TMPE
4192             }
4193             cpu=$(check_native -march)
4194         ;;
4195     esac
4196
4197     test "${cpu:-host}" = host &&
4198         die "--cpu=host not supported with compiler $cc"
4199 fi
4200
4201 # Deal with common $arch aliases
4202 case "$arch" in
4203     aarch64|arm64)
4204         arch="aarch64"
4205     ;;
4206     arm*|iPad*|iPhone*)
4207         arch="arm"
4208     ;;
4209     mips*|IP*)
4210         case "$arch" in
4211         *el)
4212             add_cppflags -EL
4213             add_ldflags -EL
4214         ;;
4215         *eb)
4216             add_cppflags -EB
4217             add_ldflags -EB
4218         ;;
4219         esac
4220         arch="mips"
4221     ;;
4222     parisc*|hppa*)
4223         arch="parisc"
4224     ;;
4225     "Power Macintosh"|ppc*|powerpc*)
4226         arch="ppc"
4227     ;;
4228     s390|s390x)
4229         arch="s390"
4230     ;;
4231     sh4|sh)
4232         arch="sh4"
4233     ;;
4234     sun4*|sparc*)
4235         arch="sparc"
4236     ;;
4237     tilegx|tile-gx)
4238         arch="tilegx"
4239     ;;
4240     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4241         arch="x86"
4242     ;;
4243 esac
4244
4245 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4246 enable $arch
4247
4248 # Add processor-specific flags
4249 if enabled aarch64; then
4250
4251     case $cpu in
4252         armv*)
4253             cpuflags="-march=$cpu"
4254         ;;
4255         *)
4256             cpuflags="-mcpu=$cpu"
4257         ;;
4258     esac
4259
4260 elif enabled alpha; then
4261
4262     cpuflags="-mcpu=$cpu"
4263
4264 elif enabled arm; then
4265
4266     check_arm_arch() {
4267         check_cpp_condition stddef.h \
4268             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4269             $cpuflags
4270     }
4271
4272     probe_arm_arch() {
4273         if   check_arm_arch 4;        then echo armv4
4274         elif check_arm_arch 4T;       then echo armv4t
4275         elif check_arm_arch 5;        then echo armv5
4276         elif check_arm_arch 5E;       then echo armv5e
4277         elif check_arm_arch 5T;       then echo armv5t
4278         elif check_arm_arch 5TE;      then echo armv5te
4279         elif check_arm_arch 5TEJ;     then echo armv5te
4280         elif check_arm_arch 6;        then echo armv6
4281         elif check_arm_arch 6J;       then echo armv6j
4282         elif check_arm_arch 6K;       then echo armv6k
4283         elif check_arm_arch 6Z;       then echo armv6z
4284         elif check_arm_arch 6ZK;      then echo armv6zk
4285         elif check_arm_arch 6T2;      then echo armv6t2
4286         elif check_arm_arch 7;        then echo armv7
4287         elif check_arm_arch 7A  7_A;  then echo armv7-a
4288         elif check_arm_arch 7S;       then echo armv7-a
4289         elif check_arm_arch 7R  7_R;  then echo armv7-r
4290         elif check_arm_arch 7M  7_M;  then echo armv7-m
4291         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4292         elif check_arm_arch 8A  8_A;  then echo armv8-a
4293         fi
4294     }
4295
4296     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4297
4298     case $cpu in
4299         armv*)
4300             cpuflags="-march=$cpu"
4301             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4302         ;;
4303         *)
4304             cpuflags="-mcpu=$cpu"
4305             case $cpu in
4306                 cortex-a*)                               subarch=armv7a  ;;
4307                 cortex-r*)                               subarch=armv7r  ;;
4308                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4309                 arm11*)                                  subarch=armv6   ;;
4310                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4311                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4312                 *)                             subarch=$(probe_arm_arch) ;;
4313             esac
4314         ;;
4315     esac
4316
4317     case "$subarch" in
4318         armv5t*)    enable fast_clz                ;;
4319         armv[6-8]*)
4320             enable fast_clz
4321             disabled fast_unaligned || enable fast_unaligned
4322             ;;
4323     esac
4324
4325 elif enabled avr32; then
4326
4327     case $cpu in
4328         ap7[02]0[0-2])
4329             subarch="avr32_ap"
4330             cpuflags="-mpart=$cpu"
4331         ;;
4332         ap)
4333             subarch="avr32_ap"
4334             cpuflags="-march=$cpu"
4335         ;;
4336         uc3[ab]*)
4337             subarch="avr32_uc"
4338             cpuflags="-mcpu=$cpu"
4339         ;;
4340         uc)
4341             subarch="avr32_uc"
4342             cpuflags="-march=$cpu"
4343         ;;
4344     esac
4345
4346 elif enabled bfin; then
4347
4348     cpuflags="-mcpu=$cpu"
4349
4350 elif enabled mips; then
4351
4352     cpuflags="-march=$cpu"
4353
4354     if [ "$cpu" != "generic" ]; then
4355         disable mips32r2
4356         disable mips32r5
4357         disable mips64r2
4358         disable mips32r6
4359         disable mips64r6
4360         disable loongson2
4361         disable loongson3
4362
4363         case $cpu in
4364             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4365                 enable mips32r2
4366                 disable msa
4367             ;;
4368             p5600|i6400|p6600)
4369                 disable mipsdsp
4370                 disable mipsdspr2
4371             ;;
4372             loongson*)
4373                 enable loongson2
4374                 enable loongson3
4375                 enable local_aligned_8 local_aligned_16 local_aligned_32
4376                 enable simd_align_16
4377                 enable fast_64bit
4378                 enable fast_clz
4379                 enable fast_cmov
4380                 enable fast_unaligned
4381                 disable aligned_stack
4382                 case $cpu in
4383                     loongson3*)
4384                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4385                     ;;
4386                     loongson2e)
4387                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4388                     ;;
4389                     loongson2f)
4390                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4391                     ;;
4392                 esac
4393             ;;
4394             *)
4395                 # Unknown CPU. Disable everything.
4396                 warn "unknown CPU. Disabling all MIPS optimizations."
4397                 disable mipsfpu
4398                 disable mipsdsp
4399                 disable mipsdspr2
4400                 disable msa
4401                 disable mmi
4402             ;;
4403         esac
4404
4405         case $cpu in
4406             24kc)
4407                 disable mipsfpu
4408                 disable mipsdsp
4409                 disable mipsdspr2
4410             ;;
4411             24kf*)
4412                 disable mipsdsp
4413                 disable mipsdspr2
4414             ;;
4415             24kec|34kc|1004kc)
4416                 disable mipsfpu
4417                 disable mipsdspr2
4418             ;;
4419             24kef*|34kf*|1004kf*)
4420                 disable mipsdspr2
4421             ;;
4422             74kc)
4423                 disable mipsfpu
4424             ;;
4425             p5600)
4426                 enable mips32r5
4427                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4428             ;;
4429             i6400)
4430                 enable mips64r6
4431                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4432             ;;
4433             p6600)
4434                 enable mips64r6
4435                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4436             ;;
4437         esac
4438     else
4439         # We do not disable anything. Is up to the user to disable the unwanted features.
4440         warn 'generic cpu selected'
4441     fi
4442
4443 elif enabled ppc; then
4444
4445     disable ldbrx
4446
4447     case $(tolower $cpu) in
4448         601|ppc601|powerpc601)
4449             cpuflags="-mcpu=601"
4450             disable altivec
4451         ;;
4452         603*|ppc603*|powerpc603*)
4453             cpuflags="-mcpu=603"
4454             disable altivec
4455         ;;
4456         604*|ppc604*|powerpc604*)
4457             cpuflags="-mcpu=604"
4458             disable altivec
4459         ;;
4460         g3|75*|ppc75*|powerpc75*)
4461             cpuflags="-mcpu=750"
4462             disable altivec
4463         ;;
4464         g4|745*|ppc745*|powerpc745*)
4465             cpuflags="-mcpu=7450"
4466             disable vsx
4467         ;;
4468         74*|ppc74*|powerpc74*)
4469             cpuflags="-mcpu=7400"
4470             disable vsx
4471         ;;
4472         g5|970|ppc970|powerpc970)
4473             cpuflags="-mcpu=970"
4474             disable vsx
4475         ;;
4476         power[3-6]*)
4477             cpuflags="-mcpu=$cpu"
4478             disable vsx
4479         ;;
4480         power[7-8]*)
4481             cpuflags="-mcpu=$cpu"
4482         ;;
4483         cell)
4484             cpuflags="-mcpu=cell"
4485             enable ldbrx
4486             disable vsx
4487         ;;
4488         e500mc)
4489             cpuflags="-mcpu=e500mc"
4490             disable altivec
4491         ;;
4492         e500v2)
4493             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4494             disable altivec
4495             disable dcbzl
4496         ;;
4497         e500)
4498             cpuflags="-mcpu=8540 -mhard-float"
4499             disable altivec
4500             disable dcbzl
4501         ;;
4502     esac
4503
4504 elif enabled sparc; then
4505
4506     case $cpu in
4507         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4508             cpuflags="-mcpu=$cpu"
4509         ;;
4510         ultrasparc*|niagara[234])
4511             cpuflags="-mcpu=$cpu"
4512         ;;
4513     esac
4514
4515 elif enabled x86; then
4516
4517     case $cpu in
4518         i[345]86|pentium)
4519             cpuflags="-march=$cpu"
4520             disable i686
4521             disable mmx
4522         ;;
4523         # targets that do NOT support nopl and conditional mov (cmov)
4524         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4525             cpuflags="-march=$cpu"
4526             disable i686
4527         ;;
4528         # targets that do support nopl and conditional mov (cmov)
4529         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4530         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4531         |amdfam10|barcelona|b[dt]ver*|znver*)
4532             cpuflags="-march=$cpu"
4533             enable i686
4534             enable fast_cmov
4535         ;;
4536         # targets that do support conditional mov but on which it's slow
4537         pentium4|pentium4m|prescott|nocona)
4538             cpuflags="-march=$cpu"
4539             enable i686
4540             disable fast_cmov
4541         ;;
4542     esac
4543
4544 fi
4545
4546 if [ "$cpu" != generic ]; then
4547     add_cflags  $cpuflags
4548     add_asflags $cpuflags
4549     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4550 fi
4551
4552 # compiler sanity check
4553 check_exec <<EOF
4554 int main(void){ return 0; }
4555 EOF
4556 if test "$?" != 0; then
4557     echo "$cc is unable to create an executable file."
4558     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4559         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4560         echo "Only do this if you know what cross compiling means."
4561     fi
4562     die "C compiler test failed."
4563 fi
4564
4565 add_cppflags -D_ISOC99_SOURCE
4566 add_cxxflags -D__STDC_CONSTANT_MACROS
4567 add_cxxflags -std=c++98
4568 check_cflags -std=c99
4569 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4570 #include <stdlib.h>
4571 EOF
4572 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4573 #include <stdlib.h>
4574 EOF
4575
4576 add_host_cppflags -D_ISOC99_SOURCE
4577 check_host_cflags -std=c99
4578 check_host_cflags -Wall
4579 check_host_cflags -O3
4580
4581 check_64bit(){
4582     arch32=$1
4583     arch64=$2
4584     expr=$3
4585     check_code cc "" "int test[2*($expr) - 1]" &&
4586         subarch=$arch64 || subarch=$arch32
4587 }
4588
4589 case "$arch" in
4590     aarch64|alpha|ia64)
4591         spic=$shared
4592     ;;
4593     mips)
4594         check_64bit mips mips64 '_MIPS_SIM > 1'
4595         spic=$shared
4596     ;;
4597     parisc)
4598         check_64bit parisc parisc64 'sizeof(void *) > 4'
4599         spic=$shared
4600     ;;
4601     ppc)
4602         check_64bit ppc ppc64 'sizeof(void *) > 4'
4603         spic=$shared
4604     ;;
4605     s390)
4606         check_64bit s390 s390x 'sizeof(void *) > 4'
4607         spic=$shared
4608     ;;
4609     sparc)
4610         check_64bit sparc sparc64 'sizeof(void *) > 4'
4611         spic=$shared
4612     ;;
4613     x86)
4614         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4615         # Treat x32 as x64 for now. Note it also needs spic=$shared
4616         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4617             subarch=x86_64
4618         if test "$subarch" = "x86_64"; then
4619             spic=$shared
4620         fi
4621     ;;
4622     ppc)
4623         check_cc <<EOF && subarch="ppc64"
4624         int test[(int)sizeof(char*) - 7];
4625 EOF
4626     ;;
4627 esac
4628
4629 enable $subarch
4630 enabled spic && enable_weak pic
4631
4632 # OS specific
4633 case $target_os in
4634     aix)
4635         SHFLAGS=-shared
4636         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4637         enabled shared && add_ldflags -Wl,-brtl
4638         ;;
4639     android)
4640         disable symver
4641         enable section_data_rel_ro
4642         SLIB_INSTALL_NAME='$(SLIBNAME)'
4643         SLIB_INSTALL_LINKS=
4644         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4645         ;;
4646     haiku)
4647         prefix_default="/boot/common"
4648         network_extralibs="-lnetwork"
4649         host_libs=
4650         ;;
4651     sunos)
4652         SHFLAGS='-shared -Wl,-h,$$(@F)'
4653         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4654         network_extralibs="-lsocket -lnsl"
4655         add_cppflags -D__EXTENSIONS__
4656         # When using suncc to build, the Solaris linker will mark
4657         # an executable with each instruction set encountered by
4658         # the Solaris assembler.  As our libraries contain their own
4659         # guards for processor-specific code, instead suppress
4660         # generation of the HWCAPS ELF section on Solaris x86 only.
4661         enabled_all suncc x86 &&
4662             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4663             add_ldflags -Wl,-M,mapfile
4664         nm_default='nm -P -g'
4665         version_script='-M'
4666         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4667         ;;
4668     netbsd)
4669         disable symver
4670         oss_indev_extralibs="-lossaudio"
4671         oss_outdev_extralibs="-lossaudio"
4672         enabled gcc || check_ldflags -Wl,-zmuldefs
4673         ;;
4674     openbsd|bitrig)
4675         disable symver
4676         SHFLAGS='-shared'
4677         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4678         SLIB_INSTALL_LINKS=
4679         oss_indev_extralibs="-lossaudio"
4680         oss_outdev_extralibs="-lossaudio"
4681         ;;
4682     dragonfly)
4683         disable symver
4684         ;;
4685     freebsd)
4686         ;;
4687     bsd/os)
4688         add_extralibs -lpoll -lgnugetopt
4689         strip="strip -d"
4690         ;;
4691     darwin)
4692         enabled ppc && add_asflags -force_cpusubtype_ALL
4693         install_name_dir_default='$(SHLIBDIR)'
4694         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4695         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4696         strip="${strip} -x"
4697         add_ldflags -Wl,-dynamic,-search_paths_first
4698         SLIBSUF=".dylib"
4699         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4700         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4701         objformat="macho"
4702         enabled x86_64 && objformat="macho64"
4703         enabled_any pic shared x86_64 ||
4704             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4705         check_header dispatch/dispatch.h &&
4706             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4707         ;;
4708     msys*)
4709         die "Native MSYS builds are discouraged, please use the MINGW environment."
4710         ;;
4711     mingw32*|mingw64*)
4712         if test $target_os = "mingw32ce"; then
4713             disable network
4714         else
4715             target_os=mingw32
4716         fi
4717         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4718         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4719         LIBTARGET=i386
4720         if enabled x86_64; then
4721             LIBTARGET="i386:x86-64"
4722         elif enabled arm; then
4723             LIBTARGET=arm-wince
4724         fi
4725         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4726         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4727         shlibdir_default="$bindir_default"
4728         SLIBPREF=""
4729         SLIBSUF=".dll"
4730         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4731         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4732         dlltool="${cross_prefix}dlltool"
4733         if check_cmd lib.exe -list; then
4734             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4735             if enabled x86_64; then
4736                 LIBTARGET=x64
4737             fi
4738         elif check_cmd $dlltool --version; then
4739             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4740         fi
4741         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4742         SLIB_INSTALL_LINKS=
4743         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4744         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4745         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4746         objformat="win32"
4747         ranlib=:
4748         enable dos_paths
4749         check_ldflags -Wl,--nxcompat,--dynamicbase
4750         # Lets work around some stupidity in binutils.
4751         # ld will strip relocations from executables even though we need them
4752         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4753         # however ld then forgets what the entry point should be (oops) so we
4754         # have to manually (re)set it.
4755         if enabled x86_32; then
4756             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4757         elif enabled x86_64; then
4758             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4759             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4760             # Set image base >4GB for extra entropy with HEASLR
4761             add_ldexeflags -Wl,--image-base,0x140000000
4762             append SHFLAGS -Wl,--image-base,0x180000000
4763         fi
4764         ;;
4765     win32|win64)
4766         disable symver
4767         if enabled shared; then
4768             # Link to the import library instead of the normal static library
4769             # for shared libs.
4770             LD_LIB='%.lib'
4771             # Cannot build both shared and static libs with MSVC or icl.
4772             disable static
4773         fi
4774         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4775         shlibdir_default="$bindir_default"
4776         SLIBPREF=""
4777         SLIBSUF=".dll"
4778         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4779         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4780         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4781         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4782         SLIB_INSTALL_LINKS=
4783         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4784         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4785         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4786         objformat="win32"
4787         ranlib=:
4788         enable dos_paths
4789         ;;
4790     cygwin*)
4791         target_os=cygwin
4792         shlibdir_default="$bindir_default"
4793         SLIBPREF="cyg"
4794         SLIBSUF=".dll"
4795         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4796         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4797         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4798         SLIB_INSTALL_LINKS=
4799         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4800         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4801         objformat="win32"
4802         enable dos_paths
4803         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4804         ;;
4805     *-dos|freedos|opendos)
4806         network_extralibs="-lsocket"
4807         objformat="coff"
4808         enable dos_paths
4809         add_cppflags -U__STRICT_ANSI__
4810         ;;
4811     linux)
4812         enable dv1394
4813         enable section_data_rel_ro
4814         ;;
4815     irix*)
4816         target_os=irix
4817         ranlib="echo ignoring ranlib"
4818         ;;
4819     os/2*)
4820         strip="lxlite -CS"
4821         objformat="aout"
4822         add_cppflags -D_GNU_SOURCE
4823         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4824         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4825         LIBSUF="_s.a"
4826         SLIBPREF=""
4827         SLIBSUF=".dll"
4828         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4829         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4830         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
4831             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
4832             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
4833             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
4834             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
4835         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
4836             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
4837         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4838         SLIB_INSTALL_LINKS=
4839         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
4840         enable dos_paths
4841         enable_weak os2threads
4842         ;;
4843     gnu/kfreebsd)
4844         add_cppflags -D_BSD_SOURCE
4845         ;;
4846     gnu)
4847         ;;
4848     qnx)
4849         add_cppflags -D_QNX_SOURCE
4850         network_extralibs="-lsocket"
4851         ;;
4852     symbian)
4853         SLIBSUF=".dll"
4854         enable dos_paths
4855         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4856         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4857         add_ldflags -Wl,--target1-abs,--no-undefined \
4858                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4859                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4860         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4861                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4862                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4863         ;;
4864     osf1)
4865         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4866         ;;
4867     minix)
4868         ;;
4869     plan9)
4870         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4871                      -D_REENTRANT_SOURCE        \
4872                      -D_RESEARCH_SOURCE         \
4873                      -DFD_SETSIZE=96            \
4874                      -DHAVE_SOCK_OPTS
4875         add_compat strtod.o strtod=avpriv_strtod
4876         network_extralibs='-lbsd'
4877         exeobjs=compat/plan9/main.o
4878         disable ffserver
4879         cp_f='cp'
4880         ;;
4881     none)
4882         ;;
4883     *)
4884         die "Unknown OS '$target_os'."
4885         ;;
4886 esac
4887
4888 # test if creating links works
4889 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4890 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4891 mkdir "$link_dest"
4892 $ln_s "$link_dest" "$link_name"
4893 touch "$link_dest/test_file"
4894 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4895     # create link to source path
4896     [ -e src ] && rm src
4897     $ln_s "$source_path" src
4898     source_link=src
4899 else
4900     # creating directory links doesn't work
4901     # fall back to using the full source path
4902     source_link="$source_path"
4903 fi
4904 # cleanup
4905 rm -r "$link_dest"
4906 rm -r "$link_name"
4907
4908 # determine libc flavour
4909
4910 probe_libc(){
4911     pfx=$1
4912     pfx_no_=${pfx%_}
4913     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4914     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4915         eval ${pfx}libc_type=uclibc
4916         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4917     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4918         eval ${pfx}libc_type=glibc
4919         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4920     # MinGW headers can be installed on Cygwin, so check for newlib first.
4921     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4922         eval ${pfx}libc_type=newlib
4923         add_${pfx}cppflags -U__STRICT_ANSI__
4924     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4925     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4926         eval ${pfx}libc_type=mingw64
4927         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4928             add_compat msvcrt/snprintf.o
4929             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4930         fi
4931         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4932         eval test \$${pfx_no_}cc_type = "gcc" &&
4933             add_${pfx}cppflags -D__printf__=__gnu_printf__
4934     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4935          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4936         eval ${pfx}libc_type=mingw32
4937         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4938             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4939             die "ERROR: MinGW32 runtime version must be >= 3.15."
4940         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4941         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||
4942             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4943         eval test \$${pfx_no_}cc_type = "gcc" &&
4944             add_${pfx}cppflags -D__printf__=__gnu_printf__
4945     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4946         eval ${pfx}libc_type=msvcrt
4947         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4948             if [ "$pfx" = host_ ]; then
4949                 add_host_cppflags -Dsnprintf=_snprintf
4950             else
4951                 add_compat strtod.o strtod=avpriv_strtod
4952                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4953                                              _snprintf=avpriv_snprintf  \
4954                                              vsnprintf=avpriv_vsnprintf
4955             fi
4956         fi
4957         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4958         # 0x601 by default unless something else is set by the user.
4959         # This can easily lead to us detecting functions only present
4960         # in such new versions and producing binaries requiring windows 7.0.
4961         # Therefore explicitly set the default to XP unless the user has
4962         # set something else on the command line.
4963         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4964         # family. For these cases, configure is free to use any functions
4965         # found in the SDK headers by default. (Alternatively, we could force
4966         # _WIN32_WINNT to 0x0602 in that case.)
4967         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4968             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4969 #ifdef WINAPI_FAMILY
4970 #include <winapifamily.h>
4971 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4972 #error not desktop
4973 #endif
4974 #endif
4975 EOF
4976     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4977         eval ${pfx}libc_type=klibc
4978     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4979         eval ${pfx}libc_type=bionic
4980     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4981         eval ${pfx}libc_type=solaris
4982         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4983     fi
4984     check_${pfx}cc <<EOF
4985 #include <time.h>
4986 void *v = localtime_r;
4987 EOF
4988 test "$?" != 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
4989 #include <time.h>
4990 void *v = localtime_r;
4991 EOF
4992
4993 }
4994
4995 probe_libc
4996 test -n "$libc_type" && enable libc_$libc_type
4997 probe_libc host_
4998 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4999
5000 case $libc_type in
5001     bionic)
5002         add_compat strtod.o strtod=avpriv_strtod
5003         ;;
5004 esac
5005
5006 # hacks for compiler/libc/os combinations
5007
5008 if enabled_all tms470 libc_glibc; then
5009     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
5010     add_cppflags -D__USER_LABEL_PREFIX__=
5011     add_cppflags -D__builtin_memset=memset
5012     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
5013     add_cflags   -pds=48    # incompatible redefinition of macro
5014 fi
5015
5016 if enabled_all ccc libc_glibc; then
5017     add_ldflags -Wl,-z,now  # calls to libots crash without this
5018 fi
5019
5020 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5021     add_cppflags '-I\$(SRC_PATH)/compat/float'
5022
5023 esc(){
5024     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
5025 }
5026
5027 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
5028
5029 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5030
5031 set_default libdir
5032 : ${shlibdir_default:="$libdir"}
5033 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5034
5035 set_default $PATHS_LIST
5036 set_default nm
5037
5038 # we need to build at least one lib type
5039 if ! enabled_any static shared; then
5040     cat <<EOF
5041 At least one library type must be built.
5042 Specify --enable-static to build the static libraries or --enable-shared to
5043 build the shared libraries as well. To only build the shared libraries specify
5044 --disable-static in addition to --enable-shared.
5045 EOF
5046     exit 1
5047 fi
5048
5049 die_license_disabled() {
5050     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
5051 }
5052
5053 die_license_disabled_gpl() {
5054     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
5055 }
5056
5057 die_license_disabled gpl frei0r
5058 die_license_disabled gpl libcdio
5059 die_license_disabled gpl librubberband
5060 die_license_disabled gpl libsmbclient
5061 die_license_disabled gpl libvidstab
5062 die_license_disabled gpl libx264
5063 die_license_disabled gpl libx265
5064 die_license_disabled gpl libxavs
5065 die_license_disabled gpl libxvid
5066 die_license_disabled gpl x11grab
5067
5068 die_license_disabled nonfree cuda
5069 die_license_disabled nonfree cuvid
5070 die_license_disabled nonfree libfaac
5071 die_license_disabled nonfree libnpp
5072 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
5073 enabled gpl && die_license_disabled_gpl nonfree openssl
5074
5075 die_license_disabled version3 gmp
5076 die_license_disabled version3 libopencore_amrnb
5077 die_license_disabled version3 libopencore_amrwb
5078 die_license_disabled version3 libsmbclient
5079 die_license_disabled version3 libvo_amrwbenc
5080
5081 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
5082
5083 disabled optimizations || check_cflags -fomit-frame-pointer
5084
5085 enable_weak_pic() {
5086     disabled pic && return
5087     enable pic
5088     add_cppflags -DPIC
5089     case "$target_os" in
5090     mingw*|cygwin*)
5091         ;;
5092     *)
5093         add_cflags -fPIC
5094         ;;
5095     esac
5096     add_asflags  -fPIC
5097 }
5098
5099 enabled pic && enable_weak_pic
5100
5101 check_cc <<EOF || die "Symbol mangling check failed."
5102 int ff_extern;
5103 EOF
5104 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5105 extern_prefix=${sym%%ff_extern*}
5106
5107 check_cc <<EOF && enable_weak inline_asm
5108 void foo(void) { __asm__ volatile ("" ::); }
5109 EOF
5110
5111 _restrict=
5112 for restrict_keyword in restrict __restrict__ __restrict; do
5113     check_cc <<EOF && _restrict=$restrict_keyword && break
5114 void foo(char * $restrict_keyword p);
5115 EOF
5116 done
5117
5118 check_cc <<EOF && enable pragma_deprecated
5119 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5120 EOF
5121
5122 check_cc <<EOF && enable attribute_packed
5123 struct { int x; } __attribute__((packed)) x;
5124 EOF
5125
5126 check_cc <<EOF && enable attribute_may_alias
5127 union { int x; } __attribute__((may_alias)) x;
5128 EOF
5129
5130 check_cc <<EOF || die "endian test failed"
5131 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5132 EOF
5133 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5134
5135 if ! enabled ppc64 || enabled bigendian; then
5136     disable vsx
5137 fi
5138
5139 check_gas() {
5140     log "check_gas using '$as' as AS"
5141     # :vararg is used on aarch64, arm and ppc altivec
5142     check_as <<EOF || return 1
5143 .macro m n, y:vararg=0
5144 \n: .int \y
5145 .endm
5146 m x
5147 EOF
5148     # .altmacro is only used in arm asm
5149     ! enabled arm || check_as <<EOF || return 1
5150 .altmacro
5151 EOF
5152     enable gnu_as
5153     return 0
5154 }
5155
5156 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5157     nogas=:
5158     enabled_any arm aarch64 && nogas=die
5159     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5160     as_noop=-v
5161
5162     case $as_type in
5163         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5164         gcc)  gaspp_as_type=gas ;;
5165         *)    gaspp_as_type=$as_type ;;
5166     esac
5167
5168     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5169
5170     test "${as#*gas-preprocessor.pl}" != "$as" ||
5171     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5172         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5173
5174     if ! check_gas ; then
5175         as=${gas:=$as}
5176         check_gas || \
5177             $nogas "GNU assembler not found, install/update gas-preprocessor"
5178     fi
5179
5180     check_as <<EOF && enable as_func
5181 .func test
5182 .endfunc
5183 EOF
5184 fi
5185
5186 check_inline_asm inline_asm_labels '"1:\n"'
5187
5188 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5189
5190 if enabled aarch64; then
5191     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5192     # internal assembler in clang 3.3 does not support this instruction
5193     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5194     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5195
5196     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5197
5198 elif enabled alpha; then
5199
5200     check_cflags -mieee
5201
5202 elif enabled arm; then
5203
5204     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5205
5206     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5207 float func(float a, float b){ return a+b; }
5208 EOF
5209
5210     enabled thumb && check_cflags -mthumb || check_cflags -marm
5211
5212     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5213         enable vfp_args
5214     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5215         enable vfp_args
5216     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5217         case "${cross_prefix:-$cc}" in
5218             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5219             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5220 __asm__ (".eabi_attribute 28, 1");
5221 int main(void) { return 0; }
5222 EOF
5223         esac
5224         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5225     fi
5226
5227     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5228     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5229     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5230     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5231     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5232     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5233     enabled setend  && check_insn setend  'setend be'
5234
5235     [ $target_os = linux ] || [ $target_os = android ] ||
5236         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5237             $ARCH_EXT_LIST_ARM
5238
5239     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5240
5241     check_as <<EOF && enable as_dn_directive
5242 ra .dn d0.i16
5243 .unreq ra
5244 EOF
5245
5246     # llvm's integrated assembler supports .object_arch from llvm 3.5
5247     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
5248 .object_arch armv4
5249 EOF
5250
5251     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5252
5253 elif enabled mips; then
5254
5255     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5256     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5257     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5258
5259     # Enable minimum ISA based on selected options
5260     if enabled mips64; then
5261         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5262         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5263         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5264     else
5265         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5266         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5267         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5268         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5269     fi
5270
5271     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5272     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5273     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5274     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5275     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5276
5277 elif enabled parisc; then
5278
5279     if enabled gcc; then
5280         case $($cc -dumpversion) in
5281             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5282         esac
5283     fi
5284
5285 elif enabled ppc; then
5286
5287     enable local_aligned_8 local_aligned_16 local_aligned_32
5288
5289     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5290     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5291     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5292     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5293
5294     # AltiVec flags: The FSF version of GCC differs from the Apple version
5295     if enabled altivec; then
5296         check_cflags -maltivec -mabi=altivec &&
5297         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5298         check_cflags -faltivec
5299
5300         # check if our compiler supports Motorola AltiVec C API
5301         check_cc <<EOF || disable altivec
5302 $inc_altivec_h
5303 int main(void) {
5304     vector signed int v1 = (vector signed int) { 0 };
5305     vector signed int v2 = (vector signed int) { 1 };
5306     v1 = vec_add(v1, v2);
5307     return 0;
5308 }
5309 EOF
5310
5311         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5312     fi
5313
5314     if enabled vsx; then
5315         check_cflags -mvsx &&
5316         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5317     fi
5318
5319     if enabled power8; then
5320         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5321     fi
5322
5323 elif enabled x86; then
5324
5325     check_builtin rdtsc    intrin.h   "__rdtsc()"
5326     check_builtin mm_empty mmintrin.h "_mm_empty()"
5327
5328     enable local_aligned_8 local_aligned_16 local_aligned_32
5329
5330     # check whether EBP is available on x86
5331     # As 'i' is stored on the stack, this program will crash
5332     # if the base pointer is used to access it because the
5333     # base pointer is cleared in the inline assembly code.
5334     check_exec_crash <<EOF && enable ebp_available
5335 volatile int i=0;
5336 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5337 return i;
5338 EOF
5339
5340     # check whether EBX is available on x86
5341     check_inline_asm ebx_available '""::"b"(0)' &&
5342         check_inline_asm ebx_available '"":::"%ebx"'
5343
5344     # check whether xmm clobbers are supported
5345     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5346
5347     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5348         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5349
5350     # check whether binutils is new enough to compile SSSE3/MMXEXT
5351     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5352     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5353
5354     if ! disabled_any asm mmx yasm; then
5355         if check_cmd $yasmexe --version; then
5356             enabled x86_64 && yasm_extra="-m amd64"
5357             yasm_debug="-g dwarf2"
5358         elif check_cmd nasm -v; then
5359             yasmexe=nasm
5360             yasm_debug="-g -F dwarf"
5361             if enabled x86_64; then
5362                 case "$objformat" in
5363                     elf)   objformat=elf64 ;;
5364                     win32) objformat=win64 ;;
5365                 esac
5366             fi
5367         fi
5368
5369         YASMFLAGS="-f $objformat $yasm_extra"
5370         enabled pic               && append YASMFLAGS "-DPIC"
5371         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5372         case "$objformat" in
5373             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5374         esac
5375
5376         check_yasm "movbe ecx, [5]" && enable yasm ||
5377             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5378         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5379         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5380         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5381         check_yasm "CPU amdnop" || disable cpunop
5382     fi
5383
5384     case "$cpu" in
5385         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5386             disable fast_clz
5387         ;;
5388     esac
5389
5390 fi
5391
5392 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5393
5394 check_ldflags -Wl,--as-needed
5395 check_ldflags -Wl,-z,noexecstack
5396
5397 if check_func dlopen && check_func dlsym; then
5398     ldl=
5399 elif check_func dlopen -ldl && check_func dlsym -ldl; then
5400     ldl=-ldl
5401 fi
5402
5403 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5404 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5405 frei0r_filter_extralibs='$ldl'
5406 frei0r_src_filter_extralibs='$ldl'
5407 ladspa_filter_extralibs='$ldl'
5408 nvenc_extralibs='$ldl'
5409 coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5410 coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
5411
5412 if ! disabled network; then
5413     check_func getaddrinfo $network_extralibs
5414     check_func inet_aton $network_extralibs
5415
5416     check_type netdb.h "struct addrinfo"
5417     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5418     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5419     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5420     check_type poll.h "struct pollfd"
5421     check_type netinet/sctp.h "struct sctp_event_subscribe"
5422     check_struct "sys/socket.h" "struct msghdr" msg_flags
5423     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5424     check_type netinet/in.h "struct sockaddr_in6"
5425     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5426     check_type "sys/types.h sys/socket.h" socklen_t
5427
5428     # Prefer arpa/inet.h over winsock2
5429     if check_header arpa/inet.h ; then
5430         check_func closesocket
5431     elif check_header winsock2.h ; then
5432         check_func_headers winsock2.h closesocket -lws2 &&
5433             network_extralibs="-lws2" ||
5434         { check_func_headers winsock2.h closesocket -lws2_32 &&
5435             network_extralibs="-lws2_32"; } || disable winsock2_h network
5436         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5437
5438         check_type ws2tcpip.h socklen_t
5439         check_type ws2tcpip.h "struct addrinfo"
5440         check_type ws2tcpip.h "struct group_source_req"
5441         check_type ws2tcpip.h "struct ip_mreq_source"
5442         check_type ws2tcpip.h "struct ipv6_mreq"
5443         check_type winsock2.h "struct pollfd"
5444         check_struct winsock2.h "struct sockaddr" sa_len
5445         check_type ws2tcpip.h "struct sockaddr_in6"
5446         check_type ws2tcpip.h "struct sockaddr_storage"
5447     else
5448         disable network
5449     fi
5450 fi
5451
5452 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5453 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5454 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5455 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5456 check_builtin sarestart signal.h "SA_RESTART"
5457 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5458 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5459 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5460 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5461 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5462
5463 case "$custom_allocator" in
5464     jemalloc)
5465         # jemalloc by default does not use a prefix
5466         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5467     ;;
5468     tcmalloc)
5469         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5470         malloc_prefix=tc_
5471     ;;
5472 esac
5473
5474 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5475 check_func  ${malloc_prefix}memalign            && enable memalign
5476 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5477
5478 check_func  access
5479 check_func_headers stdlib.h arc4random
5480 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5481 check_func  fcntl
5482 check_func  fork
5483 check_func  gethrtime
5484 check_func  getopt
5485 check_func  getrusage
5486 check_func  gettimeofday
5487 check_func  isatty
5488 check_func  mach_absolute_time
5489 check_func  mkstemp
5490 check_func  mmap
5491 check_func  mprotect
5492 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5493 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5494 check_func  sched_getaffinity
5495 check_func  setrlimit
5496 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5497 check_func  strerror_r
5498 check_func  sysconf
5499 check_func  sysctl
5500 check_func  usleep
5501
5502 check_func_headers conio.h kbhit
5503 check_func_headers io.h setmode
5504 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5505 check_func_headers stdlib.h getenv
5506 check_func_headers sys/stat.h lstat
5507
5508 check_func_headers windows.h CoTaskMemFree -lole32
5509 check_func_headers windows.h GetProcessAffinityMask
5510 check_func_headers windows.h GetProcessTimes
5511 check_func_headers windows.h GetSystemTimeAsFileTime
5512 check_func_headers windows.h LoadLibrary
5513 check_func_headers windows.h MapViewOfFile
5514 check_func_headers windows.h PeekNamedPipe
5515 check_func_headers windows.h SetConsoleTextAttribute
5516 check_func_headers windows.h SetConsoleCtrlHandler
5517 check_func_headers windows.h Sleep
5518 check_func_headers windows.h VirtualAlloc
5519 check_struct windows.h "CONDITION_VARIABLE" Ptr
5520 check_func_headers glob.h glob
5521 enabled xlib &&
5522     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5523
5524 check_header AudioToolbox/AudioToolbox.h
5525 check_header direct.h
5526 check_header dirent.h
5527 check_header dlfcn.h
5528 check_header d3d11.h
5529 check_header dxva.h
5530 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5531 check_header io.h
5532 check_header libcrystalhd/libcrystalhd_if.h
5533 check_header mach/mach_time.h
5534 check_header malloc.h
5535 check_header net/udplite.h
5536 check_header poll.h
5537 check_header sys/mman.h
5538 check_header sys/param.h
5539 check_header sys/resource.h
5540 check_header sys/select.h
5541 check_header sys/time.h
5542 check_header sys/un.h
5543 check_header termios.h
5544 check_header unistd.h
5545 check_header valgrind/valgrind.h
5546 check_header vdpau/vdpau.h
5547 check_header vdpau/vdpau_x11.h
5548 check_header VideoDecodeAcceleration/VDADecoder.h
5549 check_header VideoToolbox/VideoToolbox.h
5550 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5551 enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo
5552 check_header windows.h
5553 check_header X11/extensions/XvMClib.h
5554 check_header asm/types.h
5555
5556 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5557 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5558 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5559 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5560
5561 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5562
5563 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5564 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5565 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5566 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5567 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5568
5569 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5570 check_type "va/va.h" "VADecPictureParameterBufferVP9"
5571 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5572 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5573 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5574 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5575
5576 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5577
5578 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
5579 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
5580 check_type "cuviddec.h" "CUVIDJPEGPICPARAMS"
5581 check_type "cuviddec.h" "CUVIDMPEG2PICPARAMS"
5582 check_type "cuviddec.h" "CUVIDMPEG4PICPARAMS"
5583 check_type "cuviddec.h" "CUVIDVC1PICPARAMS"
5584 check_type "cuviddec.h" "CUVIDVP9PICPARAMS"
5585
5586 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5587
5588 if ! disabled w32threads && ! enabled pthreads; then
5589     check_func_headers "windows.h process.h" _beginthreadex &&
5590         enable w32threads || disable w32threads
5591     if ! enabled w32threads && enabled winrt; then
5592         check_func_headers "windows.h" CreateThread &&
5593             enable w32threads || disable w32threads
5594     fi
5595 fi
5596
5597 # check for some common methods of building with pthread support
5598 # do this before the optional library checks as some of them require pthreads
5599 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5600     enable pthreads
5601     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5602         add_cflags -pthread
5603         add_extralibs -pthread
5604     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5605         add_cflags -pthreads
5606         add_extralibs -pthreads
5607     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5608         add_cflags -ldl -pthread
5609         add_extralibs -ldl -pthread
5610     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5611         add_extralibs -lpthreadGC2
5612     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5613         :
5614     elif ! check_func pthread_join && ! check_func pthread_create; then
5615         disable pthreads
5616     fi
5617     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5618 fi
5619
5620
5621 if enabled pthreads; then
5622   check_func pthread_cancel
5623 fi
5624
5625 enabled pthreads &&
5626     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
5627
5628 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5629 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5630 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5631
5632 check_lib math.h sin -lm && LIBM="-lm"
5633 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5634
5635 atan2f_args=2
5636 copysign_args=2
5637 hypot_args=2
5638 ldexpf_args=2
5639 powf_args=2
5640
5641 for func in $MATH_FUNCS; do
5642     eval check_mathfunc $func \${${func}_args:-1}
5643 done
5644
5645 for func in $COMPLEX_FUNCS; do
5646     eval check_complexfunc $func \${${func}_args:-1}
5647 done
5648
5649 # Enable CUVID by default if CUDA is enabled
5650 if enabled cuda && ! disabled cuvid; then
5651     enable cuvid
5652 fi
5653
5654 # these are off by default, so fail if requested and not available
5655 enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5656 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5657                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5658 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5659                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5660                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5661 enabled cuda              && { check_lib cuda.h cuInit -lcuda ||
5662                                die "ERROR: CUDA not found"; }
5663 enabled cuvid             && { check_lib cuviddec.h cuvidCreateDecoder -lnvcuvid ||
5664                                die "ERROR: CUVID not found"; } &&
5665                              { enabled cuda ||
5666                                die "ERROR: CUVID requires CUDA"; }
5667 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5668 enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
5669 enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
5670 enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&
5671                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }
5672 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5673 enabled gmp               && require2 gmp gmp.h mpz_export -lgmp
5674 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5675 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&
5676                                check_lib2 "dlfcn.h" dlopen -ldl; }
5677 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5678 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5679 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5680 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5681 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5682 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5683                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5684                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5685 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5686 enabled libebur128        && require ebur128 ebur128.h ebur128_relative_threshold -lebur128
5687 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5688 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5689                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5690                                  warn "using libfdk without pkg-config"; } }
5691 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"
5692 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5693 enabled fontconfig        && enable libfontconfig
5694 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5695 enabled libfreetype       && require_libfreetype
5696 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5697 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5698 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5699                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5700                                done || die "ERROR: libgsm not found"; }
5701 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5702 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5703 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5704 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5705 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5706 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5707 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
5708 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5709 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5710 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5711                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
5712                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5713                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
5714 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5715 enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5716                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
5717                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5718                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5719                                die "ERROR: libopenjpeg not found"; }
5720 enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create
5721 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5722 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5723 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5724 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5725 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5726 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5727 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5728                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5729 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5730 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5731 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5732 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5733 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5734 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5735 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5736                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5737                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5738 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5739 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5740 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5741 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5742
5743 enabled libvpx            && {
5744     enabled libvpx_vp8_decoder && {
5745         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5746             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5747                 die "ERROR: libvpx decoder version must be >=0.9.1";
5748     }
5749     enabled libvpx_vp8_encoder && {
5750         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5751             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5752                 die "ERROR: libvpx encoder version must be >=0.9.7";
5753     }
5754     enabled libvpx_vp9_decoder && {
5755         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5756             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5757                 disable libvpx_vp9_decoder;
5758     }
5759     enabled libvpx_vp9_encoder && {
5760         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5761             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5762                 disable libvpx_vp9_encoder;
5763     }
5764     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5765         die "libvpx enabled but no supported decoders found"
5766     fi
5767 }
5768
5769 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5770 enabled libwebp           && {
5771     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5772     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5773 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5774                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5775                                  warn "using libx264 without pkg-config"; } } &&
5776                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5777                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5778                              { check_cpp_condition x264.h "X264_MPEG2" &&
5779                                enable libx262; }
5780 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5781                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||
5782                                die "ERROR: libx265 version must be >= 68."; }
5783 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5784 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5785 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5786 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5787 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
5788                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
5789                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
5790 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
5791 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5792                                 { ! enabled cross_compile && {
5793                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5794                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5795                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5796                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5797                                die "ERROR: mmal not found"; }
5798 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
5799
5800 enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers
5801 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5802                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5803                                die "ERROR: openal not found"; } &&
5804                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5805                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5806 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5807                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5808                                die "ERROR: opencl not found"; } &&
5809                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5810                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5811                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5812 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5813                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5814                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5815                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5816                                die "ERROR: opengl not found."
5817                              }
5818 enabled omx_rpi && enable omx
5819 enabled omx               && { check_header OMX_Core.h ||
5820                                 { ! enabled cross_compile && enabled omx_rpi && {
5821                                     add_cflags -isystem/opt/vc/include/IL ; }
5822                                 check_header OMX_Core.h ; } ||
5823                                die "ERROR: OpenMAX IL headers not found"; }
5824 enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||
5825                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5826                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5827                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5828                                die "ERROR: openssl not found"; }
5829 enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
5830
5831 # libdc1394 check
5832 if enabled libdc1394; then
5833     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5834         enable libdc1394_2; } ||
5835     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5836         enable libdc1394_1; } ||
5837     die "ERROR: No version of libdc1394 found "
5838 fi
5839
5840 if enabled gcrypt; then
5841     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
5842     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
5843         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
5844         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)
5845         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||
5846             die "ERROR: gcrypt not found"
5847         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs
5848     else
5849         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt
5850     fi
5851 fi
5852
5853 if ! disabled sdl; then
5854     SDL_CONFIG="${cross_prefix}sdl-config"
5855     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5856         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5857         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5858         enable sdl
5859     else
5860         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5861             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5862             sdl_libs=$("${SDL_CONFIG}" --libs)
5863             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5864             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5865             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5866             enable sdl
5867         elif enabled sdl ; then
5868             die "ERROR: SDL not found"
5869         else
5870             disable sdl
5871         fi
5872     fi
5873     if test $target_os = "mingw32"; then
5874         sdl_libs="$sdl_libs -mconsole"
5875     fi
5876 fi
5877 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5878
5879 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5880     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5881     enable securetransport; }
5882
5883 disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
5884                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }
5885
5886 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5887 enabled makeinfo \
5888     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5889     && enable makeinfo_html || disable makeinfo_html
5890 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5891 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5892 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5893 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5894
5895 check_header linux/fb.h
5896 check_header linux/videodev.h
5897 check_header linux/videodev2.h
5898 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5899
5900 check_header sys/videoio.h
5901 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5902
5903 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5904 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5905 # w32api 3.12 had it defined wrong
5906 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5907
5908 check_type "dshow.h" IBaseFilter
5909
5910 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5911 { check_header dev/bktr/ioctl_meteor.h &&
5912   check_header dev/bktr/ioctl_bt848.h; } ||
5913 { check_header machine/ioctl_meteor.h &&
5914   check_header machine/ioctl_bt848.h; } ||
5915 { check_header dev/video/meteor/ioctl_meteor.h &&
5916   check_header dev/video/bktr/ioctl_bt848.h; } ||
5917 check_header dev/ic/bt8xx.h
5918
5919 check_header sndio.h
5920 if check_struct sys/soundcard.h audio_buf_info bytes; then
5921     enable_safe sys/soundcard.h
5922 else
5923     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5924     #include <sys/soundcard.h>
5925     audio_buf_info abc;
5926 EOF
5927 fi
5928 check_header soundcard.h
5929
5930 enabled_any alsa_indev alsa_outdev &&
5931     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5932
5933 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
5934     check_func jack_port_get_latency_range -ljack
5935
5936 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5937
5938 if enabled libcdio; then
5939     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5940     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5941     die "ERROR: No usable libcdio/cdparanoia found"
5942 fi
5943
5944 enabled xlib &&
5945     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5946
5947 if ! disabled libxcb; then
5948     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5949         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5950     } && disable x11grab && enable libxcb
5951
5952 if enabled libxcb; then
5953     disabled libxcb_shm || {
5954         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5955             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5956         } && check_header sys/shm.h && enable libxcb_shm; }
5957
5958     disabled libxcb_xfixes || {
5959         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5960             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5961         } && enable libxcb_xfixes; }
5962
5963     disabled libxcb_shape || {
5964         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5965             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5966         } && enable libxcb_shape; }
5967
5968     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5969     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5970 fi
5971 fi
5972
5973 if enabled x11grab; then
5974     enabled xlib || die "ERROR: Xlib not found"
5975     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5976     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5977 fi
5978
5979 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5980
5981 enabled dxva2api_h &&
5982     check_cc <<EOF && enable dxva2api_cobj
5983 #define _WIN32_WINNT 0x0600
5984 #define COBJMACROS
5985 #include <windows.h>
5986 #include <d3d9.h>
5987 #include <dxva2api.h>
5988 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5989 EOF
5990
5991 enabled vaapi &&
5992     check_lib va/va.h vaInitialize -lva ||
5993     disable vaapi
5994
5995 enabled vaapi &&
5996     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
5997     disable vaapi
5998
5999 if enabled vaapi ; then
6000     enabled xlib &&
6001     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
6002     enable vaapi_x11
6003
6004     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
6005     enable vaapi_drm
6006 fi
6007
6008 enabled vdpau &&
6009     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
6010     disable vdpau
6011
6012 enabled vdpau && enabled xlib &&
6013     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
6014     enable vdpau_x11
6015
6016 if enabled x86; then
6017     case $target_os in
6018         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6019             ;;
6020         *)
6021             disable nvenc
6022             ;;
6023     esac
6024 else
6025     disable nvenc
6026 fi
6027
6028 enabled nvenc &&
6029     check_cc -I$source_path <<EOF || disable nvenc
6030 #include "compat/nvenc/nvEncodeAPI.h"
6031 NV_ENCODE_API_FUNCTION_LIST flist;
6032 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6033 int main(void) { return 0; }
6034 EOF
6035
6036 # Funny iconv installations are not unusual, so check it after all flags have been set
6037 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
6038
6039 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6040
6041 # add some useful compiler flags if supported
6042 check_cflags -Wdeclaration-after-statement
6043 check_cflags -Wall
6044 check_cflags -Wdisabled-optimization
6045 check_cflags -Wpointer-arith
6046 check_cflags -Wredundant-decls
6047 check_cflags -Wwrite-strings
6048 check_cflags -Wtype-limits
6049 check_cflags -Wundef
6050 check_cflags -Wmissing-prototypes
6051 check_cflags -Wno-pointer-to-int-cast
6052 check_cflags -Wstrict-prototypes
6053 check_cflags -Wempty-body
6054 enabled extra_warnings && check_cflags -Winline
6055 enabled extra_warnings && check_cflags -Wcast-qual
6056
6057 check_disable_warning(){
6058     warning_flag=-W${1#-Wno-}
6059     test_cflags $warning_flag && add_cflags $1
6060 }
6061
6062 check_disable_warning -Wno-parentheses
6063 check_disable_warning -Wno-switch
6064 check_disable_warning -Wno-format-zero-length
6065 check_disable_warning -Wno-pointer-sign
6066 check_disable_warning -Wno-unused-const-variable
6067
6068 # add some linker flags
6069 check_ldflags -Wl,--warn-common
6070 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6071 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
6072 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
6073 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6074
6075 # add some strip flags
6076 # -wN '..@*' is more selective than -x, but not available everywhere.
6077 check_stripflags -wN \'..@*\' || check_stripflags -x
6078
6079 enabled neon_clobber_test &&
6080     check_ldflags -Wl,--wrap,avcodec_open2              \
6081                   -Wl,--wrap,avcodec_decode_audio4      \
6082                   -Wl,--wrap,avcodec_decode_video2      \
6083                   -Wl,--wrap,avcodec_decode_subtitle2   \
6084                   -Wl,--wrap,avcodec_encode_audio2      \
6085                   -Wl,--wrap,avcodec_encode_video2      \
6086                   -Wl,--wrap,avcodec_send_packet        \
6087                   -Wl,--wrap,avcodec_receive_frame      \
6088                   -Wl,--wrap,avcodec_encode_subtitle    \
6089                   -Wl,--wrap,swr_convert                \
6090                   -Wl,--wrap,avresample_convert ||
6091     disable neon_clobber_test
6092
6093 enabled xmm_clobber_test &&
6094     check_ldflags -Wl,--wrap,avcodec_open2              \
6095                   -Wl,--wrap,avcodec_decode_audio4      \
6096                   -Wl,--wrap,avcodec_decode_video2      \
6097                   -Wl,--wrap,avcodec_decode_subtitle2   \
6098                   -Wl,--wrap,avcodec_encode_audio2      \
6099                   -Wl,--wrap,avcodec_encode_video2      \
6100                   -Wl,--wrap,avcodec_encode_subtitle    \
6101                   -Wl,--wrap,avcodec_send_packet        \
6102                   -Wl,--wrap,avcodec_receive_frame      \
6103                   -Wl,--wrap,swr_convert                \
6104                   -Wl,--wrap,avresample_convert         \
6105                   -Wl,--wrap,sws_scale ||
6106     disable xmm_clobber_test
6107
6108 check_ld "cc" <<EOF && enable proper_dce
6109 extern const int array[512];
6110 static inline int func(void) { return array[0]; }
6111 int main(void) { return 0; }
6112 EOF
6113
6114 if enabled proper_dce; then
6115     echo "X { local: *; };" > $TMPV
6116     if test_ldflags -Wl,${version_script},$TMPV; then
6117         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6118         check_cc <<EOF && enable symver_asm_label
6119 void ff_foo(void) __asm__ ("av_foo@VERSION");
6120 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6121 EOF
6122         check_cc <<EOF && enable symver_gnu_asm
6123 __asm__(".symver ff_foo,av_foo@VERSION");
6124 void ff_foo(void) {}
6125 EOF
6126     fi
6127 fi
6128
6129 if [ -z "$optflags" ]; then
6130     if enabled small; then
6131         optflags=$cflags_size
6132     elif enabled optimizations; then
6133         optflags=$cflags_speed
6134     else
6135         optflags=$cflags_noopt
6136     fi
6137 fi
6138
6139 check_optflags(){
6140     check_cflags "$@"
6141     enabled lto && check_ldflags "$@"
6142 }
6143
6144
6145 if enabled lto; then
6146     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6147     check_cflags  -flto
6148     check_ldflags -flto $cpuflags
6149     disable inline_asm_direct_symbol_refs
6150 fi
6151
6152 check_optflags $optflags
6153 check_optflags -fno-math-errno
6154 check_optflags -fno-signed-zeros
6155
6156 enabled ftrapv && check_cflags -ftrapv
6157
6158 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6159 int x;
6160 EOF
6161
6162
6163 if enabled icc; then
6164     # Just warnings, no remarks
6165     check_cflags -w1
6166     # -wd: Disable following warnings
6167     # 144, 167, 556: -Wno-pointer-sign
6168     # 188: enumerated type mixed with another type
6169     # 1292: attribute "foo" ignored
6170     # 1419: external declaration in primary source file
6171     # 10006: ignoring unknown option -fno-signed-zeros
6172     # 10148: ignoring unknown option -Wno-parentheses
6173     # 10156: ignoring option '-W'; no argument required
6174     # 13200: No EMMS instruction before call to function
6175     # 13203: No EMMS instruction before return from function
6176     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6177     # 11030: Warning unknown option --as-needed
6178     # 10156: ignoring option '-export'; no argument required
6179     check_ldflags -wd10156,11030
6180     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6181     enable ebp_available
6182     # The test above does not test linking
6183     enabled lto && disable symver_asm_label
6184     if enabled x86_32; then
6185         icc_version=$($cc -dumpversion)
6186         test ${icc_version%%.*} -ge 11 &&
6187             check_cflags -falign-stack=maintain-16-byte ||
6188             disable aligned_stack
6189     fi
6190 elif enabled ccc; then
6191     # disable some annoying warnings
6192     add_cflags -msg_disable bitnotint
6193     add_cflags -msg_disable mixfuncvoid
6194     add_cflags -msg_disable nonstandcast
6195     add_cflags -msg_disable unsupieee
6196 elif enabled gcc; then
6197     check_optflags -fno-tree-vectorize
6198     check_cflags -Werror=format-security
6199     check_cflags -Werror=implicit-function-declaration
6200     check_cflags -Werror=missing-prototypes
6201     check_cflags -Werror=return-type
6202     check_cflags -Werror=vla
6203     check_cflags -Wformat
6204     check_cflags -fdiagnostics-color=auto
6205     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6206 elif enabled llvm_gcc; then
6207     check_cflags -mllvm -stack-alignment=16
6208 elif enabled clang; then
6209     check_cflags -mllvm -stack-alignment=16
6210     check_cflags -Qunused-arguments
6211     check_cflags -Werror=implicit-function-declaration
6212     check_cflags -Werror=missing-prototypes
6213     check_cflags -Werror=return-type
6214 elif enabled cparser; then
6215     add_cflags -Wno-missing-variable-declarations
6216     add_cflags -Wno-empty-statement
6217 elif enabled armcc; then
6218     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6219     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6220     # 2523: use of inline assembly is deprecated
6221     add_cflags -W${armcc_opt},--diag_suppress=2523
6222     add_cflags -W${armcc_opt},--diag_suppress=1207
6223     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6224     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6225     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6226     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6227 elif enabled tms470; then
6228     add_cflags -pds=824 -pds=837
6229     disable inline_asm
6230 elif enabled pathscale; then
6231     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6232 elif enabled_any msvc icl; then
6233     enabled x86_32 && disable aligned_stack
6234     enabled_all x86_32 debug && add_cflags -Oy-
6235     enabled debug && add_ldflags -debug
6236     enable pragma_deprecated
6237     if enabled icl; then
6238         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6239         # (correctly) on icl 13.x.
6240         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6241             add_cflags -Qansi-alias
6242         # Some inline asm is not compilable in debug
6243         if enabled debug; then
6244             disable ebp_available
6245             disable ebx_available
6246         fi
6247     fi
6248     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6249     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6250     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6251     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6252     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6253     # MSVC 2013 and newer can handle it fine.
6254     # If this declspec fails, force including stdlib.h before the restrict redefinition
6255     # happens in config.h.
6256     if [ $_restrict != restrict ]; then
6257         check_cc <<EOF || add_cflags -FIstdlib.h
6258 __declspec($_restrict) void* foo(int);
6259 EOF
6260     fi
6261     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
6262     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6263     # this flag should be re-checked on newer compiler releases and put under a
6264     # version check once its fixed
6265     check_cflags -d2SSAOptimizer-
6266 fi
6267
6268 for pfx in "" host_; do
6269     varname=${pfx%_}cc_type
6270     eval "type=\$$varname"
6271     if [ $type = "msvc" ]; then
6272         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6273 static inline int foo(int a) { return a; }
6274 EOF
6275     fi
6276 done
6277
6278 case $as_type in
6279     clang)
6280         add_asflags -Qunused-arguments
6281     ;;
6282 esac
6283
6284 case $ld_type in
6285     clang)
6286         check_ldflags -Qunused-arguments
6287     ;;
6288 esac
6289
6290 case $target_os in
6291     osf1)
6292         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6293     ;;
6294     plan9)
6295         add_cppflags -Dmain=plan9_main
6296     ;;
6297 esac
6298
6299 enable frame_thread_encoder
6300
6301 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6302
6303 check_deps $CONFIG_LIST       \
6304            $CONFIG_EXTRA      \
6305            $HAVE_LIST         \
6306            $ALL_COMPONENTS    \
6307
6308 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"
6309
6310
6311 if test $target_os = "haiku"; then
6312     disable memalign
6313     disable posix_memalign
6314 fi
6315
6316 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
6317     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
6318     enable dxva2_lib
6319
6320 ! enabled_any memalign posix_memalign aligned_malloc &&
6321     enabled simd_align_16 && enable memalign_hack
6322
6323 # add_dep lib dep
6324 # -> enable ${lib}_deps_${dep}
6325 # -> add $dep to ${lib}_deps only once
6326 add_dep() {
6327     lib=$1
6328     dep=$2
6329     enabled "${lib}_deps_${dep}" && return 0
6330     enable  "${lib}_deps_${dep}"
6331     prepend "${lib}_deps" $dep
6332 }
6333
6334 # merge deps lib components
6335 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6336 merge_deps() {
6337     lib=$1
6338     shift
6339     for comp in $*; do
6340         enabled $comp || continue
6341         eval "dep=\"\$${comp}_deps\""
6342         for d in $dep; do
6343             add_dep $lib $d
6344         done
6345     done
6346 }
6347
6348 merge_deps libavfilter $FILTER_LIST
6349
6350 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6351
6352 for thread in $THREADS_LIST; do
6353     if enabled $thread; then
6354         test -n "$thread_type" &&
6355             die "ERROR: Only one thread type must be selected." ||
6356             thread_type="$thread"
6357     fi
6358 done
6359
6360 enabled zlib && add_cppflags -DZLIB_CONST
6361
6362 # conditional library dependencies, in linking order
6363 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6364 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6365 enabled aresample_filter    && prepend avfilter_deps "swresample"
6366 enabled asyncts_filter      && prepend avfilter_deps "avresample"
6367 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6368 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6369 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6370 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6371 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6372 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6373 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6374 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6375 enabled pan_filter          && prepend avfilter_deps "swresample"
6376 enabled pp_filter           && prepend avfilter_deps "postproc"
6377 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6378 enabled resample_filter && prepend avfilter_deps "avresample"
6379 enabled sab_filter          && prepend avfilter_deps "swscale"
6380 enabled scale_filter    && prepend avfilter_deps "swscale"
6381 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6382 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6383 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6384 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6385 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6386 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6387 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6388 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6389 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6390
6391 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6392
6393 enabled opus_decoder    && prepend avcodec_deps "swresample"
6394
6395 expand_deps(){
6396     lib_deps=${1}_deps
6397     eval "deps=\$$lib_deps"
6398     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6399     unique $lib_deps
6400 }
6401
6402 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6403 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6404
6405 map 'expand_deps $v' $LIBRARY_LIST
6406
6407 echo "install prefix            $prefix"
6408 echo "source path               $source_path"
6409 echo "C compiler                $cc"
6410 echo "C library                 $libc_type"
6411 if test "$host_cc" != "$cc"; then
6412     echo "host C compiler           $host_cc"
6413     echo "host C library            $host_libc_type"
6414 fi
6415 echo "ARCH                      $arch ($cpu)"
6416 if test "$build_suffix" != ""; then
6417     echo "build suffix              $build_suffix"
6418 fi
6419 if test "$progs_suffix" != ""; then
6420     echo "progs suffix              $progs_suffix"
6421 fi
6422 if test "$extra_version" != ""; then
6423     echo "version string suffix     $extra_version"
6424 fi
6425 echo "big-endian                ${bigendian-no}"
6426 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6427 if enabled x86; then
6428     echo "${yasmexe}                      ${yasm-no}"
6429     echo "MMX enabled               ${mmx-no}"
6430     echo "MMXEXT enabled            ${mmxext-no}"
6431     echo "3DNow! enabled            ${amd3dnow-no}"
6432     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6433     echo "SSE enabled               ${sse-no}"
6434     echo "SSSE3 enabled             ${ssse3-no}"
6435     echo "AESNI enabled             ${aesni-no}"
6436     echo "AVX enabled               ${avx-no}"
6437     echo "XOP enabled               ${xop-no}"
6438     echo "FMA3 enabled              ${fma3-no}"
6439     echo "FMA4 enabled              ${fma4-no}"
6440     echo "i686 features enabled     ${i686-no}"
6441     echo "CMOV is fast              ${fast_cmov-no}"
6442     echo "EBX available             ${ebx_available-no}"
6443     echo "EBP available             ${ebp_available-no}"
6444 fi
6445 if enabled aarch64; then
6446     echo "NEON enabled              ${neon-no}"
6447     echo "VFP enabled               ${vfp-no}"
6448 fi
6449 if enabled arm; then
6450     echo "ARMv5TE enabled           ${armv5te-no}"
6451     echo "ARMv6 enabled             ${armv6-no}"
6452     echo "ARMv6T2 enabled           ${armv6t2-no}"
6453     echo "VFP enabled               ${vfp-no}"
6454     echo "NEON enabled              ${neon-no}"
6455     echo "THUMB enabled             ${thumb-no}"
6456 fi
6457 if enabled mips; then
6458     echo "MIPS FPU enabled          ${mipsfpu-no}"
6459     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6460     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6461     echo "MIPS MSA enabled          ${msa-no}"
6462     echo "LOONGSON MMI enabled      ${mmi-no}"
6463 fi
6464 if enabled ppc; then
6465     echo "AltiVec enabled           ${altivec-no}"
6466     echo "VSX enabled               ${vsx-no}"
6467     echo "POWER8 enabled            ${power8-no}"
6468     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6469     echo "dcbzl available           ${dcbzl-no}"
6470 fi
6471 echo "debug symbols             ${debug-no}"
6472 echo "strip symbols             ${stripping-no}"
6473 echo "optimize for size         ${small-no}"
6474 echo "optimizations             ${optimizations-no}"
6475 echo "static                    ${static-no}"
6476 echo "shared                    ${shared-no}"
6477 echo "postprocessing support    ${postproc-no}"
6478 echo "new filter support        ${avfilter-no}"
6479 echo "network support           ${network-no}"
6480 echo "threading support         ${thread_type-no}"
6481 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6482 echo "SDL support               ${sdl-no}"
6483 echo "opencl enabled            ${opencl-no}"
6484 echo "JNI support               ${jni-no}"
6485 echo "texi2html enabled         ${texi2html-no}"
6486 echo "perl enabled              ${perl-no}"
6487 echo "pod2man enabled           ${pod2man-no}"
6488 echo "makeinfo enabled          ${makeinfo-no}"
6489 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6490 test -n "$random_seed" &&
6491     echo "random seed               ${random_seed}"
6492 echo
6493
6494 echo "Enabled programs:"
6495 print_enabled '' $PROGRAM_LIST | print_in_columns
6496 echo
6497
6498 echo "External libraries:"
6499 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6500 echo
6501
6502 echo "External libraries providing hardware acceleration:"
6503 print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns
6504 echo
6505
6506 echo "Libraries:"
6507 print_enabled '' $LIBRARY_LIST | print_in_columns
6508 echo
6509
6510 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6511     echo "Enabled ${type}s:"
6512     eval list=\$$(toupper $type)_LIST
6513     print_enabled '_*' $list | print_in_columns
6514     echo
6515 done
6516
6517 license="LGPL version 2.1 or later"
6518 if enabled nonfree; then
6519     license="nonfree and unredistributable"
6520 elif enabled gplv3; then
6521     license="GPL version 3 or later"
6522 elif enabled lgplv3; then
6523     license="LGPL version 3 or later"
6524 elif enabled gpl; then
6525     license="GPL version 2 or later"
6526 fi
6527
6528 echo "License: $license"
6529
6530 echo "Creating config.mak, config.h, and doc/config.texi..."
6531
6532 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6533
6534 enabled stripping || strip="echo skipping strip"
6535
6536 config_files="$TMPH config.mak doc/config.texi"
6537
6538 cat > config.mak <<EOF
6539 # Automatically generated by configure - do not modify!
6540 ifndef FFMPEG_CONFIG_MAK
6541 FFMPEG_CONFIG_MAK=1
6542 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6543 prefix=$prefix
6544 LIBDIR=\$(DESTDIR)$libdir
6545 SHLIBDIR=\$(DESTDIR)$shlibdir
6546 INCDIR=\$(DESTDIR)$incdir
6547 BINDIR=\$(DESTDIR)$bindir
6548 DATADIR=\$(DESTDIR)$datadir
6549 DOCDIR=\$(DESTDIR)$docdir
6550 MANDIR=\$(DESTDIR)$mandir
6551 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6552 INSTALL_NAME_DIR=$install_name_dir
6553 SRC_PATH=$source_path
6554 SRC_LINK=$source_link
6555 ifndef MAIN_MAKEFILE
6556 SRC_PATH:=\$(SRC_PATH:.%=..%)
6557 endif
6558 CC_IDENT=$cc_ident
6559 ARCH=$arch
6560 INTRINSICS=$intrinsics
6561 CC=$cc
6562 CXX=$cxx
6563 AS=$as
6564 OBJCC=$objcc
6565 LD=$ld
6566 DEPCC=$dep_cc
6567 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6568 DEPAS=$as
6569 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6570 YASM=$yasmexe
6571 DEPYASM=$yasmexe
6572 AR=$ar
6573 ARFLAGS=$arflags
6574 AR_O=$ar_o
6575 RANLIB=$ranlib
6576 STRIP=$strip
6577 CP=cp -p
6578 LN_S=$ln_s
6579 CPPFLAGS=$CPPFLAGS
6580 CFLAGS=$CFLAGS
6581 CXXFLAGS=$CXXFLAGS
6582 OBJCFLAGS=$OBJCFLAGS
6583 ASFLAGS=$ASFLAGS
6584 AS_C=$AS_C
6585 AS_O=$AS_O
6586 OBJCC_C=$OBJCC_C
6587 OBJCC_E=$OBJCC_E
6588 OBJCC_O=$OBJCC_O
6589 CC_C=$CC_C
6590 CC_E=$CC_E
6591 CC_O=$CC_O
6592 CXX_C=$CXX_C
6593 CXX_O=$CXX_O
6594 LD_O=$LD_O
6595 LD_LIB=$LD_LIB
6596 LD_PATH=$LD_PATH
6597 DLLTOOL=$dlltool
6598 WINDRES=$windres
6599 DEPWINDRES=$dep_cc
6600 DOXYGEN=$doxygen
6601 LDFLAGS=$LDFLAGS
6602 LDEXEFLAGS=$LDEXEFLAGS
6603 LDLIBFLAGS=$LDLIBFLAGS
6604 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6605 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6606 YASMFLAGS=$YASMFLAGS
6607 BUILDSUF=$build_suffix
6608 PROGSSUF=$progs_suffix
6609 FULLNAME=$FULLNAME
6610 LIBPREF=$LIBPREF
6611 LIBSUF=$LIBSUF
6612 LIBNAME=$LIBNAME
6613 SLIBPREF=$SLIBPREF
6614 SLIBSUF=$SLIBSUF
6615 EXESUF=$EXESUF
6616 EXTRA_VERSION=$extra_version
6617 CCDEP=$CCDEP
6618 CXXDEP=$CXXDEP
6619 CCDEP_FLAGS=$CCDEP_FLAGS
6620 ASDEP=$ASDEP
6621 ASDEP_FLAGS=$ASDEP_FLAGS
6622 CC_DEPFLAGS=$CC_DEPFLAGS
6623 AS_DEPFLAGS=$AS_DEPFLAGS
6624 HOSTCC=$host_cc
6625 HOSTLD=$host_ld
6626 HOSTCFLAGS=$host_cflags
6627 HOSTCPPFLAGS=$host_cppflags
6628 HOSTEXESUF=$HOSTEXESUF
6629 HOSTLDFLAGS=$host_ldflags
6630 HOSTLIBS=$host_libs
6631 DEPHOSTCC=$host_cc
6632 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6633 HOSTCCDEP=$HOSTCCDEP
6634 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6635 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6636 HOSTCC_C=$HOSTCC_C
6637 HOSTCC_O=$HOSTCC_O
6638 HOSTLD_O=$HOSTLD_O
6639 TARGET_EXEC=$target_exec $target_exec_args
6640 TARGET_PATH=$target_path
6641 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6642 CFLAGS-ffplay=$sdl_cflags
6643 ZLIB=$($ldflags_filter -lz)
6644 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6645 EXTRALIBS=$extralibs
6646 COMPAT_OBJS=$compat_objs
6647 EXEOBJS=$exeobjs
6648 INSTALL=$install
6649 LIBTARGET=${LIBTARGET}
6650 SLIBNAME=${SLIBNAME}
6651 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6652 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6653 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6654 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6655 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6656 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6657 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6658 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6659 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
6660 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6661 NOREDZONE_FLAGS=$noredzone_flags
6662 EOF
6663
6664 get_version(){
6665     lcname=lib${1}
6666     name=$(toupper $lcname)
6667     file=$source_path/$lcname/version.h
6668     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6669     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6670     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6671     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6672     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6673     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6674 }
6675
6676 map 'get_version $v' $LIBRARY_LIST
6677
6678 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6679
6680 print_program_libs(){
6681     eval "program_libs=\$${1}_libs"
6682     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6683 }
6684
6685 map 'print_program_libs $v' $PROGRAM_LIST
6686
6687 cat > $TMPH <<EOF
6688 /* Automatically generated by configure - do not modify! */
6689 #ifndef FFMPEG_CONFIG_H
6690 #define FFMPEG_CONFIG_H
6691 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6692 #define FFMPEG_LICENSE "$(c_escape $license)"
6693 #define CONFIG_THIS_YEAR 2016
6694 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6695 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6696 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6697 #define av_restrict $_restrict
6698 #define EXTERN_PREFIX "${extern_prefix}"
6699 #define EXTERN_ASM ${extern_prefix}
6700 #define BUILDSUF "$build_suffix"
6701 #define SLIBSUF "$SLIBSUF"
6702 #define HAVE_MMX2 HAVE_MMXEXT
6703 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6704 EOF
6705
6706 test -n "$assert_level" &&
6707     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6708
6709 test -n "$malloc_prefix" &&
6710     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6711
6712 if enabled yasm; then
6713     append config_files $TMPASM
6714     printf '' >$TMPASM
6715 fi
6716
6717 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6718
6719
6720 mkdir -p doc
6721 mkdir -p tests
6722 mkdir -p tests/api
6723 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6724
6725 print_config ARCH_   "$config_files" $ARCH_LIST
6726 print_config HAVE_   "$config_files" $HAVE_LIST
6727 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6728                                      $CONFIG_EXTRA      \
6729                                      $ALL_COMPONENTS    \
6730
6731 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6732 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6733
6734 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6735 cp_if_changed $TMPH config.h
6736 touch .config
6737
6738 enabled yasm && cp_if_changed $TMPASM config.asm
6739
6740 cat > $TMPH <<EOF
6741 /* Generated by ffconf */
6742 #ifndef AVUTIL_AVCONFIG_H
6743 #define AVUTIL_AVCONFIG_H
6744 EOF
6745
6746 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6747
6748 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6749
6750 cp_if_changed $TMPH libavutil/avconfig.h
6751
6752 if test -n "$WARNINGS"; then
6753     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6754     enabled fatal_warnings && exit 1
6755 fi
6756
6757 # generate the lists of enabled components
6758 print_enabled_components(){
6759     file=$1
6760     struct_name=$2
6761     name=$3
6762     shift 3
6763     echo "static const $struct_name *$name[] = {" > $TMPH
6764     for c in $*; do
6765         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
6766     done
6767     echo "    NULL };" >> $TMPH
6768     cp_if_changed $TMPH $file
6769 }
6770
6771 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
6772 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
6773
6774 # build pkg-config files
6775
6776 lib_version(){
6777     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6778 }
6779
6780 pkgconfig_generate(){
6781     name=$1
6782     shortname=${name#lib}${build_suffix}
6783     comment=$2
6784     version=$3
6785     libs=$4
6786     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6787     requires=${requires%, }
6788     enabled ${name#lib} || return 0
6789     mkdir -p $name
6790     cat <<EOF > $name/$name${build_suffix}.pc
6791 prefix=$prefix
6792 exec_prefix=\${prefix}
6793 libdir=$libdir
6794 includedir=$incdir
6795
6796 Name: $name
6797 Description: $comment
6798 Version: $version
6799 Requires: $(enabled shared || echo $requires)
6800 Requires.private: $(enabled shared && echo $requires)
6801 Conflicts:
6802 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6803 Libs.private: $(enabled shared && echo $libs)
6804 Cflags: -I\${includedir}
6805 EOF
6806
6807 mkdir -p doc/examples/pc-uninstalled
6808 includedir=${source_path}
6809 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6810     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6811 prefix=
6812 exec_prefix=
6813 libdir=\${pcfiledir}/../../../$name
6814 includedir=${includedir}
6815
6816 Name: $name
6817 Description: $comment
6818 Version: $version
6819 Requires: $requires
6820 Conflicts:
6821 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6822 Cflags: -I\${includedir}
6823 EOF
6824 }
6825
6826 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6827 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6828 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6829 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6830 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6831 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6832 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6833 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6834 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"