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:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-outdevs           show all available output devices
  77   --list-filters           show all available filters
  78
  79 Standard options:
  80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
  81   --disable-logging        do not log configure debug information
  82   --fatal-warnings         fail if any configure warning is generated
  83   --prefix=PREFIX          install in PREFIX [$prefix_default]
  84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  87   --libdir=DIR             install libs in DIR [PREFIX/lib]
  88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  89   --incdir=DIR             install includes in DIR [PREFIX/include]
  90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  92   --enable-rpath           use rpath to allow installing libraries in paths
  93                            not part of the dynamic linker search path
  94                            use rpath when linking programs (USE WITH CARE)
  95   --install-name-dir=DIR   Darwin directory name for installed targets
  96
  97 Licensing options:
  98   --enable-gpl             allow use of GPL code, the resulting libs
  99                            and binaries will be under GPL [no]
 100   --enable-version3        upgrade (L)GPL to version 3 [no]
 101   --enable-nonfree         allow use of nonfree code, the resulting libs
 102                            and binaries will be unredistributable [no]
 103
 104 Configuration options:
 105   --disable-static         do not build static libraries [no]
 106   --enable-shared          build shared libraries [no]
 107   --enable-small           optimize for size instead of speed
 108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
 109   --enable-gray            enable full grayscale support (slower color)
 110   --disable-swscale-alpha  disable alpha channel support in swscale
 111   --disable-all            disable building components, libraries and programs
 112   --disable-autodetect     disable automatically detected external libraries [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   --disable-v4l2_m2m       disable V4L2 mem2mem code [autodetect]
 189
 190 External library support:
 191
 192   Using any of the following switches will allow FFmpeg to link to the
 193   corresponding external library. All the components depending on that library
 194   will become enabled, if all their other dependencies are met and they are not
 195   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 196   libwavpack and allow the libwavpack encoder to be built, unless it is
 197   specifically disabled with --disable-encoder=libwavpack.
 198
 199   Note that only the system libraries are auto-detected. All the other external
 200   libraries must be explicitly enabled.
 201
 202   Also note that the following help text describes the purpose of the libraries
 203   themselves, not all their features will necessarily be usable by FFmpeg.
 204
 205   --disable-alsa           disable ALSA support [autodetect]
 206   --disable-appkit         disable Apple AppKit framework [autodetect]
 207   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
 208   --enable-avisynth        enable reading of AviSynth script files [no]
 209   --disable-bzlib          disable bzlib [autodetect]
 210   --disable-coreimage      disable Apple CoreImage framework [autodetect]
 211   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 212   --enable-frei0r          enable frei0r video filtering [no]
 213   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 214                            if openssl, librtmp or gmp is not used [no]
 215   --enable-gmp             enable gmp, needed for rtmp(t)e support
 216                            if openssl or librtmp is not used [no]
 217   --enable-gnutls          enable gnutls, needed for https support
 218                            if openssl is not used [no]
 219   --disable-iconv          disable iconv [autodetect]
 220   --disable-jack           disable libjack support [autodetect]
 221   --enable-jni             enable JNI support [no]
 222   --enable-ladspa          enable LADSPA audio filtering [no]
 223   --enable-libass          enable libass subtitles rendering,
 224                            needed for subtitles and ass filter [no]
 225   --enable-libbluray       enable BluRay reading using libbluray [no]
 226   --enable-libbs2b         enable bs2b DSP library [no]
 227   --enable-libcaca         enable textual display using libcaca [no]
 228   --enable-libcelt         enable CELT decoding via libcelt [no]
 229   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 230   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 231                            and libraw1394 [no]
 232   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 233   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 234   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 235   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 236   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 237   --enable-libgme          enable Game Music Emu via libgme [no]
 238   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 239   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 240   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 242   --enable-libmodplug      enable ModPlug via libmodplug [no]
 243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 246   --enable-libopencv       enable video filtering via libopencv [no]
 247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 250   --enable-libopus         enable Opus de/encoding via libopus [no]
 251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 252   --enable-librsvg         enable SVG rasterization via librsvg [no]
 253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 258   --enable-libsoxr         enable Include libsoxr resampling [no]
 259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 260   --enable-libssh          enable SFTP protocol via libssh [no]
 261   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 262   --enable-libtheora       enable Theora encoding via libtheora [no]
 263   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 264   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 265   --enable-libvidstab      enable video stabilization using vid.stab [no]
 266   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 267   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 268   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 269                            native implementation exists [no]
 270   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 271   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 272   --enable-libwebp         enable WebP encoding via libwebp [no]
 273   --enable-libx264         enable H.264 encoding via x264 [no]
 274   --enable-libx265         enable HEVC encoding via x265 [no]
 275   --enable-libxavs         enable AVS encoding via xavs [no]
 276   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 277   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 278   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 279   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 280   --enable-libxvid         enable Xvid encoding via xvidcore,
 281                            native MPEG-4/Xvid encoder exists [no]
 282   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
 283   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 284   --enable-libzmq          enable message passing via libzmq [no]
 285   --enable-libzvbi         enable teletext support via libzvbi [no]
 286   --disable-lzma           disable lzma [autodetect]
 287   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 288   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
 289   --enable-mediacodec      enable Android MediaCodec support [no]
 290   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 291   --enable-openal          enable OpenAL 1.1 capture support [no]
 292   --enable-opencl          enable OpenCL code
 293   --enable-opengl          enable OpenGL rendering [no]
 294   --enable-openssl         enable openssl, needed for https support
 295                            if gnutls is not used [no]
 296   --disable-sndio          disable sndio support [autodetect]
 297   --disable-schannel       disable SChannel SSP, needed for TLS support on
 298                            Windows if openssl and gnutls are not used [autodetect]
 299   --disable-sdl2           disable sdl2 [autodetect]
 300   --disable-securetransport disable Secure Transport, needed for TLS support
 301                            on OSX if openssl and gnutls are not used [autodetect]
 302   --disable-xlib           disable xlib [autodetect]
 303   --disable-zlib           disable zlib [autodetect]
 304
 305   The following libraries provide various hardware acceleration features:
 306   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 307   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
 308   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
 309   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 310   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 311   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 312   --enable-libdrm          enable DRM code (Linux) [no]
 313   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 314   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 315   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 316   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 317   --enable-omx             enable OpenMAX IL code [no]
 318   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 319   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 320   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 321   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
 322   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 323   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 324
 325 Toolchain options:
 326   --arch=ARCH              select architecture [$arch]
 327   --cpu=CPU                select the minimum required CPU (affects
 328                            instruction selection, may crash on older CPUs)
 329   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 330   --progs-suffix=SUFFIX    program name suffix []
 331   --enable-cross-compile   assume a cross-compiler is used
 332   --sysroot=PATH           root of cross-build tree
 333   --sysinclude=PATH        location of cross-build system headers
 334   --target-os=OS           compiler targets OS [$target_os]
 335   --target-exec=CMD        command to run executables on target
 336   --target-path=DIR        path to view of build directory on target
 337   --target-samples=DIR     path to samples directory on target
 338   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 339   --toolchain=NAME         set tool defaults according to NAME
 340   --nm=NM                  use nm tool NM [$nm_default]
 341   --ar=AR                  use archive tool AR [$ar_default]
 342   --as=AS                  use assembler AS [$as_default]
 343   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 344   --strip=STRIP            use strip tool STRIP [$strip_default]
 345   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 346   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 347   --cc=CC                  use C compiler CC [$cc_default]
 348   --cxx=CXX                use C compiler CXX [$cxx_default]
 349   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 350   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 351   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
 352   --ld=LD                  use linker LD [$ld_default]
 353   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 354   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 355   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 356   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 357   --host-cc=HOSTCC         use host C compiler HOSTCC
 358   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 359   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 360   --host-ld=HOSTLD         use host linker HOSTLD
 361   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 362   --host-libs=HLIBS        use libs HLIBS when linking for host
 363   --host-os=OS             compiler host OS [$target_os]
 364   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 365   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 366   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 367   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 368   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 369   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 370   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 371   --extra-version=STRING   version string suffix []
 372   --optflags=OPTFLAGS      override optimization-related compiler flags
 373   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 374   --build-suffix=SUFFIX    library name suffix []
 375   --enable-pic             build position-independent code
 376   --enable-thumb           compile for Thumb instruction set
 377   --enable-lto             use link-time optimization
 378   --env="ENV=override"     override the environment variables
 379
 380 Advanced options (experts only):
 381   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 382   --custom-allocator=NAME  use a supported custom allocator
 383   --disable-symver         disable symbol versioning
 384   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 385   --disable-safe-bitstream-reader
 386                            disable buffer boundary checking in bitreaders
 387                            (faster, but may crash)
 388   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 389
 390 Optimization options (experts only):
 391   --disable-asm            disable all assembly optimizations
 392   --disable-altivec        disable AltiVec optimizations
 393   --disable-vsx            disable VSX optimizations
 394   --disable-power8         disable POWER8 optimizations
 395   --disable-amd3dnow       disable 3DNow! optimizations
 396   --disable-amd3dnowext    disable 3DNow! extended optimizations
 397   --disable-mmx            disable MMX optimizations
 398   --disable-mmxext         disable MMXEXT optimizations
 399   --disable-sse            disable SSE optimizations
 400   --disable-sse2           disable SSE2 optimizations
 401   --disable-sse3           disable SSE3 optimizations
 402   --disable-ssse3          disable SSSE3 optimizations
 403   --disable-sse4           disable SSE4 optimizations
 404   --disable-sse42          disable SSE4.2 optimizations
 405   --disable-avx            disable AVX optimizations
 406   --disable-xop            disable XOP optimizations
 407   --disable-fma3           disable FMA3 optimizations
 408   --disable-fma4           disable FMA4 optimizations
 409   --disable-avx2           disable AVX2 optimizations
 410   --disable-aesni          disable AESNI optimizations
 411   --disable-armv5te        disable armv5te optimizations
 412   --disable-armv6          disable armv6 optimizations
 413   --disable-armv6t2        disable armv6t2 optimizations
 414   --disable-vfp            disable VFP optimizations
 415   --disable-neon           disable NEON optimizations
 416   --disable-inline-asm     disable use of inline assembly
 417   --disable-x86asm         disable use of standalone x86 assembly
 418   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 419   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 420   --disable-msa            disable MSA optimizations
 421   --disable-mipsfpu        disable floating point MIPS optimizations
 422   --disable-mmi            disable Loongson SIMD optimizations
 423   --disable-fast-unaligned consider unaligned accesses slow
 424
 425 Developer options (useful when working on FFmpeg itself):
 426   --disable-debug          disable debugging symbols
 427   --enable-debug=LEVEL     set the debug level [$debuglevel]
 428   --disable-optimizations  disable compiler optimizations
 429   --enable-extra-warnings  enable more compiler warnings
 430   --disable-stripping      disable stripping of executables and shared libraries
 431   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 432                            2 causes a slowdown at runtime.
 433   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 434   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 435                            leaks and errors, using the specified valgrind binary.
 436                            Cannot be combined with --target-exec
 437   --enable-ftrapv          Trap arithmetic overflows
 438   --samples=PATH           location of test samples for FATE, if not set use
 439                            \$FATE_SAMPLES at make invocation time.
 440   --enable-neon-clobber-test check NEON registers for clobbering (should be
 441                            used only for debugging purposes)
 442   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 443                            should be used only for debugging purposes)
 444   --enable-random          randomly enable/disable components
 445   --disable-random
 446   --enable-random=LIST     randomly enable/disable specific components or
 447   --disable-random=LIST    component groups. LIST is a comma-separated list
 448                            of NAME[:PROB] entries where NAME is a component
 449                            (group) and PROB the probability associated with
 450                            NAME (default 0.5).
 451   --random-seed=VALUE      seed value for --enable/disable-random
 452   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 453                            (only applies to --disable-optimizations builds)
 454   --enable-osfuzz          Enable building fuzzer tool
 455   --libfuzzer=PATH         path to libfuzzer
 456   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 457                            in the name) of tests whose result is ignored
 458   --enable-linux-perf      enable Linux Performance Monitor API
 459
 460 NOTE: Object files are built at the place where configure is launched.
 461 EOF
 462   exit 0
 463 }
 464
 465 quotes='""'
 466 if test -t 1 && which tput >/dev/null 2>&1; then
 467     ncolors=$(tput colors)
 468     if test -n "$ncolors" && test $ncolors -ge 8; then
 469         bold_color=$(tput bold)
 470         warn_color=$(tput setaf 3)
 471         error_color=$(tput setaf 1)
 472         reset_color=$(tput sgr0)
 473     fi
 474     # 72 used instead of 80 since that's the default of pr
 475     ncols=$(tput cols)
 476 fi
 477 : ${ncols:=72}
 478
 479 log(){
 480     echo "$@" >> $logfile
 481 }
 482
 483 log_file(){
 484     log BEGIN $1
 485     pr -n -t $1 >> $logfile
 486     log END $1
 487 }
 488
 489 warn(){
 490     log "WARNING: $*"
 491     WARNINGS="${WARNINGS}WARNING: $*\n"
 492 }
 493
 494 die(){
 495     log "$@"
 496     echo "$error_color$bold_color$@$reset_color"
 497     cat <<EOF
 498
 499 If you think configure made a mistake, make sure you are using the latest
 500 version from Git.  If the latest version fails, report the problem to the
 501 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 502 EOF
 503     if disabled logging; then
 504         cat <<EOF
 505 Rerun configure with logging enabled (do not use --disable-logging), and
 506 include the log this produces with your report.
 507 EOF
 508     else
 509         cat <<EOF
 510 Include the log file "$logfile" produced by configure as this will help
 511 solve the problem.
 512 EOF
 513     fi
 514     exit 1
 515 }
 516
 517 # Avoid locale weirdness, besides we really just want to translate ASCII.
 518 toupper(){
 519     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 520 }
 521
 522 tolower(){
 523     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 524 }
 525
 526 c_escape(){
 527     echo "$*" | sed 's/["\\]/\\\0/g'
 528 }
 529
 530 sh_quote(){
 531     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 532     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 533     echo "$v"
 534 }
 535
 536 cleanws(){
 537     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 538 }
 539
 540 filter(){
 541     pat=$1
 542     shift
 543     for v; do
 544         eval "case $v in $pat) printf '%s ' $v ;; esac"
 545     done
 546 }
 547
 548 filter_out(){
 549     pat=$1
 550     shift
 551     for v; do
 552         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
 553     done
 554 }
 555
 556 map(){
 557     m=$1
 558     shift
 559     for v; do eval $m; done
 560 }
 561
 562 add_suffix(){
 563     suffix=$1
 564     shift
 565     for v; do echo ${v}${suffix}; done
 566 }
 567
 568 set_all(){
 569     value=$1
 570     shift
 571     for var in $*; do
 572         eval $var=$value
 573     done
 574 }
 575
 576 set_weak(){
 577     value=$1
 578     shift
 579     for var; do
 580         eval : \${$var:=$value}
 581     done
 582 }
 583
 584 sanitize_var_name(){
 585     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 586 }
 587
 588 set_safe(){
 589     var=$1
 590     shift
 591     eval $(sanitize_var_name "$var")='$*'
 592 }
 593
 594 get_safe(){
 595     eval echo \$$(sanitize_var_name "$1")
 596 }
 597
 598 pushvar(){
 599     for pvar in $*; do
 600         eval level=\${${pvar}_level:=0}
 601         eval ${pvar}_${level}="\$$pvar"
 602         eval ${pvar}_level=$(($level+1))
 603     done
 604 }
 605
 606 popvar(){
 607     for pvar in $*; do
 608         eval level=\${${pvar}_level:-0}
 609         test $level = 0 && continue
 610         eval level=$(($level-1))
 611         eval $pvar="\${${pvar}_${level}}"
 612         eval ${pvar}_level=$level
 613         eval unset ${pvar}_${level}
 614     done
 615 }
 616
 617 request(){
 618     for var in $*; do
 619         eval ${var}_requested=yes
 620         eval $var=
 621     done
 622 }
 623
 624 enable(){
 625     set_all yes $*
 626 }
 627
 628 disable(){
 629     set_all no $*
 630 }
 631
 632 enable_weak(){
 633     set_weak yes $*
 634 }
 635
 636 disable_weak(){
 637     set_weak no $*
 638 }
 639
 640 enable_safe(){
 641     for var; do
 642         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 643     done
 644 }
 645
 646 disable_safe(){
 647     for var; do
 648         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 649     done
 650 }
 651
 652 do_enable_deep(){
 653     for var; do
 654         enabled $var && continue
 655         eval sel="\$${var}_select"
 656         eval sgs="\$${var}_suggest"
 657         pushvar var sgs
 658         enable_deep $sel
 659         popvar sgs
 660         enable_deep_weak $sgs
 661         popvar var
 662     done
 663 }
 664
 665 enable_deep(){
 666     do_enable_deep $*
 667     enable $*
 668 }
 669
 670 enable_deep_weak(){
 671     for var; do
 672         disabled $var && continue
 673         pushvar var
 674         do_enable_deep $var
 675         popvar var
 676         enable_weak $var
 677     done
 678 }
 679
 680 requested(){
 681     test "${1#!}" = "$1" && op='=' || op=!=
 682     eval test "x\$${1#!}_requested" $op "xyes"
 683 }
 684
 685 enabled(){
 686     test "${1#!}" = "$1" && op='=' || op=!=
 687     eval test "x\$${1#!}" $op "xyes"
 688 }
 689
 690 disabled(){
 691     test "${1#!}" = "$1" && op='=' || op=!=
 692     eval test "x\$${1#!}" $op "xno"
 693 }
 694
 695 enabled_all(){
 696     for opt; do
 697         enabled $opt || return 1
 698     done
 699 }
 700
 701 disabled_all(){
 702     for opt; do
 703         disabled $opt || return 1
 704     done
 705 }
 706
 707 enabled_any(){
 708     for opt; do
 709         enabled $opt && return 0
 710     done
 711 }
 712
 713 disabled_any(){
 714     for opt; do
 715         disabled $opt && return 0
 716     done
 717     return 1
 718 }
 719
 720 set_default(){
 721     for opt; do
 722         eval : \${$opt:=\$${opt}_default}
 723     done
 724 }
 725
 726 is_in(){
 727     value=$1
 728     shift
 729     for var in $*; do
 730         [ $var = $value ] && return 0
 731     done
 732     return 1
 733 }
 734
 735 do_check_deps(){
 736     for cfg; do
 737         cfg="${cfg#!}"
 738         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 739         disabled ${cfg}_checking && continue
 740         enable ${cfg}_checking
 741         append allopts $cfg
 742
 743         eval dep_all="\$${cfg}_deps"
 744         eval dep_any="\$${cfg}_deps_any"
 745         eval dep_sel="\$${cfg}_select"
 746         eval dep_sgs="\$${cfg}_suggest"
 747         eval dep_ifa="\$${cfg}_if"
 748         eval dep_ifn="\$${cfg}_if_any"
 749
 750         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 751         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 752         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 753
 754         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 755         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 756         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
 757         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
 758         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
 759
 760         if enabled $cfg; then
 761             enable_deep $dep_sel
 762             enable_deep_weak $dep_sgs
 763         fi
 764
 765         disable ${cfg}_checking
 766     done
 767 }
 768
 769 check_deps(){
 770     unset allopts
 771
 772     do_check_deps "$@"
 773
 774     for cfg in $allopts; do
 775         enabled $cfg || continue
 776         eval dep_extralibs="\$${cfg}_extralibs"
 777         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 778     done
 779 }
 780
 781 print_config(){
 782     pfx=$1
 783     files=$2
 784     shift 2
 785     map 'eval echo "$v \${$v:-no}"' "$@" |
 786     awk "BEGIN { split(\"$files\", files) }
 787         {
 788             c = \"$pfx\" toupper(\$1);
 789             v = \$2;
 790             sub(/yes/, 1, v);
 791             sub(/no/,  0, v);
 792             for (f in files) {
 793                 file = files[f];
 794                 if (file ~ /\\.h\$/) {
 795                     printf(\"#define %s %d\\n\", c, v) >>file;
 796                 } else if (file ~ /\\.asm\$/) {
 797                     printf(\"%%define %s %d\\n\", c, v) >>file;
 798                 } else if (file ~ /\\.mak\$/) {
 799                     n = -v ? \"\" : \"!\";
 800                     printf(\"%s%s=yes\\n\", n, c) >>file;
 801                 } else if (file ~ /\\.texi\$/) {
 802                     pre = -v ? \"\" : \"@c \";
 803                     yesno = \$2;
 804                     c2 = tolower(c);
 805                     gsub(/_/, \"-\", c2);
 806                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 807                 }
 808             }
 809         }"
 810 }
 811
 812 print_enabled(){
 813     suf=$1
 814     shift
 815     for v; do
 816         enabled $v && printf "%s\n" ${v%$suf}
 817     done
 818 }
 819
 820 append(){
 821     var=$1
 822     shift
 823     eval "$var=\"\$$var $*\""
 824 }
 825
 826 prepend(){
 827     var=$1
 828     shift
 829     eval "$var=\"$* \$$var\""
 830 }
 831
 832 unique(){
 833     var=$1
 834     uniq_list=""
 835     for tok in $(eval echo \$$var); do
 836         uniq_list="$(filter_out $tok $uniq_list) $tok"
 837     done
 838     eval "$var=\"${uniq_list}\""
 839 }
 840
 841 add_cppflags(){
 842     append CPPFLAGS "$@"
 843 }
 844
 845 add_cflags(){
 846     append CFLAGS $($cflags_filter "$@")
 847 }
 848
 849 add_cflags_headers(){
 850     append CFLAGS_HEADERS $($cflags_filter "$@")
 851 }
 852
 853 add_cxxflags(){
 854     append CXXFLAGS $($cflags_filter "$@")
 855 }
 856
 857 add_asflags(){
 858     append ASFLAGS $($asflags_filter "$@")
 859 }
 860
 861 add_objcflags(){
 862     append OBJCFLAGS $($objcflags_filter "$@")
 863 }
 864
 865 add_ldflags(){
 866     append LDFLAGS $($ldflags_filter "$@")
 867 }
 868
 869 add_ldexeflags(){
 870     append LDEXEFLAGS $($ldflags_filter "$@")
 871 }
 872
 873 add_ldlibflags(){
 874     append LDLIBFLAGS $($ldflags_filter "$@")
 875 }
 876
 877 add_stripflags(){
 878     append ASMSTRIPFLAGS "$@"
 879 }
 880
 881 add_extralibs(){
 882     prepend extralibs $($ldflags_filter "$@")
 883 }
 884
 885 add_host_cppflags(){
 886     append host_cppflags "$@"
 887 }
 888
 889 add_host_cflags(){
 890     append host_cflags $($host_cflags_filter "$@")
 891 }
 892
 893 add_host_ldflags(){
 894     append host_ldflags $($host_ldflags_filter "$@")
 895 }
 896
 897 add_compat(){
 898     append compat_objs $1
 899     shift
 900     map 'add_cppflags -D$v' "$@"
 901 }
 902
 903 check_cmd(){
 904     log "$@"
 905     "$@" >> $logfile 2>&1
 906 }
 907
 908 check_stat(){
 909     log check_stat "$@"
 910     stat "$1" >> $logfile 2>&1
 911 }
 912
 913 cc_o(){
 914     eval printf '%s\\n' $CC_O
 915 }
 916
 917 cc_e(){
 918     eval printf '%s\\n' $CC_E
 919 }
 920
 921 check_cc(){
 922     log check_cc "$@"
 923     cat > $TMPC
 924     log_file $TMPC
 925     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 926 }
 927
 928 check_cxx(){
 929     log check_cxx "$@"
 930     cat > $TMPCPP
 931     log_file $TMPCPP
 932     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 933 }
 934
 935 check_objcc(){
 936     log check_objcc "$@"
 937     cat > $TMPM
 938     log_file $TMPM
 939     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
 940 }
 941
 942 check_cpp(){
 943     log check_cpp "$@"
 944     cat > $TMPC
 945     log_file $TMPC
 946     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 947 }
 948
 949 as_o(){
 950     eval printf '%s\\n' $AS_O
 951 }
 952
 953 check_as(){
 954     log check_as "$@"
 955     cat > $TMPS
 956     log_file $TMPS
 957     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 958 }
 959
 960 check_inline_asm(){
 961     log check_inline_asm "$@"
 962     name="$1"
 963     code="$2"
 964     shift 2
 965     disable $name
 966     check_cc "$@" <<EOF && enable $name
 967 void foo(void){ __asm__ volatile($code); }
 968 EOF
 969 }
 970
 971 check_inline_asm_flags(){
 972     log check_inline_asm_flags "$@"
 973     name="$1"
 974     code="$2"
 975     flags=''
 976     shift 2
 977     while [ "$1" != "" ]; do
 978       append flags $1
 979       shift
 980     done;
 981     disable $name
 982     cat > $TMPC <<EOF
 983 void foo(void){ __asm__ volatile($code); }
 984 EOF
 985     log_file $TMPC
 986     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
 987     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
 988 }
 989
 990 check_insn(){
 991     log check_insn "$@"
 992     check_inline_asm ${1}_inline "\"$2\""
 993     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 994 }
 995
 996 check_x86asm(){
 997     log check_x86asm "$@"
 998     echo "$1" > $TMPS
 999     log_file $TMPS
1000     shift 1
1001     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1002 }
1003
1004 ld_o(){
1005     eval printf '%s\\n' $LD_O
1006 }
1007
1008 check_ld(){
1009     log check_ld "$@"
1010     type=$1
1011     shift 1
1012     flags=$(filter_out '-l*|*.so' $@)
1013     libs=$(filter '-l*|*.so' $@)
1014     check_$type $($cflags_filter $flags) || return
1015     flags=$($ldflags_filter $flags)
1016     libs=$($ldflags_filter $libs)
1017     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1018 }
1019
1020 print_include(){
1021     hdr=$1
1022     test "${hdr%.h}" = "${hdr}" &&
1023         echo "#include $hdr"    ||
1024         echo "#include <$hdr>"
1025 }
1026
1027 check_code(){
1028     log check_code "$@"
1029     check=$1
1030     headers=$2
1031     code=$3
1032     shift 3
1033     {
1034         for hdr in $headers; do
1035             print_include $hdr
1036         done
1037         echo "int main(void) { $code; return 0; }"
1038     } | check_$check "$@"
1039 }
1040
1041 check_cppflags(){
1042     log check_cppflags "$@"
1043     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1044 #include <stdlib.h>
1045 EOF
1046 }
1047
1048 test_cflags(){
1049     log test_cflags "$@"
1050     set -- $($cflags_filter "$@")
1051     check_cc "$@" <<EOF
1052 int x;
1053 EOF
1054 }
1055
1056 check_cflags(){
1057     log check_cflags "$@"
1058     test_cflags "$@" && add_cflags "$@"
1059 }
1060
1061 check_cxxflags(){
1062     log check_cxxflags "$@"
1063     set -- $($cflags_filter "$@")
1064     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1065 int x;
1066 EOF
1067 }
1068
1069 test_objcflags(){
1070     log test_objcflags "$@"
1071     set -- $($objcflags_filter "$@")
1072     check_objcc "$@" <<EOF
1073 int x;
1074 EOF
1075 }
1076
1077 check_objcflags(){
1078     log check_objcflags "$@"
1079     test_objcflags "$@" && add_objcflags "$@"
1080 }
1081
1082 test_ldflags(){
1083     log test_ldflags "$@"
1084     check_ld "cc" "$@" <<EOF
1085 int main(void){ return 0; }
1086 EOF
1087 }
1088
1089 check_ldflags(){
1090     log check_ldflags "$@"
1091     test_ldflags "$@" && add_ldflags "$@"
1092 }
1093
1094 test_stripflags(){
1095     log test_stripflags "$@"
1096     # call check_cc to get a fresh TMPO
1097     check_cc <<EOF
1098 int main(void) { return 0; }
1099 EOF
1100     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1101 }
1102
1103 check_stripflags(){
1104     log check_stripflags "$@"
1105     test_stripflags "$@" && add_stripflags "$@"
1106 }
1107
1108 check_header(){
1109     log check_header "$@"
1110     header=$1
1111     shift
1112     disable_safe $header
1113     check_cpp "$@" <<EOF && enable_safe $header
1114 #include <$header>
1115 int x;
1116 EOF
1117 }
1118
1119 check_header_objcc(){
1120     log check_header_objcc "$@"
1121     rm -f -- "$TMPO"
1122     header=$1
1123     shift
1124     disable_safe $header
1125     {
1126        echo "#include <$header>"
1127        echo "int main(void) { return 0; }"
1128     } | check_objcc && check_stat "$TMPO" && enable_safe $header
1129 }
1130
1131 check_apple_framework(){
1132     log check_apple_framework "$@"
1133     framework="$1"
1134     name="$(tolower $framework)"
1135     header="${framework}/${framework}.h"
1136     disable $name
1137     check_header_objcc $header && enable $name && add_extralibs "-framework $framework"
1138 }
1139
1140 check_func(){
1141     log check_func "$@"
1142     func=$1
1143     shift
1144     disable $func
1145     check_ld "cc" "$@" <<EOF && enable $func
1146 extern int $func();
1147 int main(void){ $func(); }
1148 EOF
1149 }
1150
1151 check_complexfunc(){
1152     log check_complexfunc "$@"
1153     func=$1
1154     narg=$2
1155     shift 2
1156     test $narg = 2 && args="f, g" || args="f * I"
1157     disable $func
1158     check_ld "cc" "$@" <<EOF && enable $func
1159 #include <complex.h>
1160 #include <math.h>
1161 float foo(complex float f, complex float g) { return $func($args); }
1162 int main(void){ return (int) foo; }
1163 EOF
1164 }
1165
1166 check_mathfunc(){
1167     log check_mathfunc "$@"
1168     func=$1
1169     narg=$2
1170     shift 2
1171     test $narg = 2 && args="f, g" || args="f"
1172     disable $func
1173     check_ld "cc" "$@" <<EOF && enable $func
1174 #include <math.h>
1175 float foo(float f, float g) { return $func($args); }
1176 int main(void){ return (int) foo; }
1177 EOF
1178 }
1179
1180 check_func_headers(){
1181     log check_func_headers "$@"
1182     headers=$1
1183     funcs=$2
1184     shift 2
1185     {
1186         for hdr in $headers; do
1187             print_include $hdr
1188         done
1189         echo "#include <stdint.h>"
1190         for func in $funcs; do
1191             echo "long check_$func(void) { return (long) $func; }"
1192         done
1193         echo "int main(void) { int ret = 0;"
1194         # LTO could optimize out the test functions without this
1195         for func in $funcs; do
1196             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1197         done
1198         echo "return ret; }"
1199     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1200 }
1201
1202 check_class_headers_cpp(){
1203     log check_class_headers_cpp "$@"
1204     headers=$1
1205     classes=$2
1206     shift 2
1207     {
1208         for hdr in $headers; do
1209             echo "#include <$hdr>"
1210         done
1211         echo "int main(void) { "
1212         i=1
1213         for class in $classes; do
1214             echo "$class obj$i;"
1215             i=$(expr $i + 1)
1216         done
1217         echo "return 0; }"
1218     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1219 }
1220
1221 check_cpp_condition(){
1222     log check_cpp_condition "$@"
1223     header=$1
1224     condition=$2
1225     shift 2
1226     check_cpp "$@" <<EOF
1227 #include <$header>
1228 #if !($condition)
1229 #error "unsatisfied condition: $condition"
1230 #endif
1231 EOF
1232 }
1233
1234 test_cflags_cc(){
1235     log test_cflags_cc "$@"
1236     flags=$1
1237     header=$2
1238     condition=$3
1239     shift 3
1240     set -- $($cflags_filter "$flags")
1241     check_cc "$@" <<EOF
1242 #include <$header>
1243 #if !($condition)
1244 #error "unsatisfied condition: $condition"
1245 #endif
1246 EOF
1247 }
1248
1249 check_lib(){
1250     log check_lib "$@"
1251     name="$1"
1252     headers="$2"
1253     funcs="$3"
1254     shift 3
1255     disable $name
1256     check_func_headers "$headers" "$funcs" "$@" &&
1257         enable $name && add_extralibs "$@"
1258 }
1259
1260 check_lib_cpp(){
1261     log check_lib_cpp "$@"
1262     headers="$1"
1263     classes="$2"
1264     shift 2
1265     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1266 }
1267
1268 check_pkg_config(){
1269     log check_pkg_config "$@"
1270     pkg_version="$1"
1271     pkg="${1%% *}"
1272     headers="$2"
1273     funcs="$3"
1274     shift 3
1275     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1276     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1277     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1278     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1279         set_safe "${pkg}_cflags"    $pkg_cflags &&
1280         set_safe "${pkg}_extralibs" $pkg_libs
1281 }
1282
1283 check_exec(){
1284     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1285 }
1286
1287 check_exec_crash(){
1288     log check_exec_crash "$@"
1289     code=$(cat)
1290
1291     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1292     # are safe but may not be available everywhere.  Thus we use
1293     # raise(SIGTERM) instead.  The check is run in a subshell so we
1294     # can redirect the "Terminated" message from the shell.  SIGBUS
1295     # is not defined by standard C so it is used conditionally.
1296
1297     (check_exec "$@") >> $logfile 2>&1 <<EOF
1298 #include <signal.h>
1299 static void sighandler(int sig){
1300     raise(SIGTERM);
1301 }
1302 int foo(void){
1303     $code
1304 }
1305 int (*func_ptr)(void) = foo;
1306 int main(void){
1307     signal(SIGILL, sighandler);
1308     signal(SIGFPE, sighandler);
1309     signal(SIGSEGV, sighandler);
1310 #ifdef SIGBUS
1311     signal(SIGBUS, sighandler);
1312 #endif
1313     return func_ptr();
1314 }
1315 EOF
1316 }
1317
1318 check_type(){
1319     log check_type "$@"
1320     headers=$1
1321     type=$2
1322     shift 2
1323     disable_safe "$type"
1324     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1325 }
1326
1327 check_struct(){
1328     log check_struct "$@"
1329     headers=$1
1330     struct=$2
1331     member=$3
1332     shift 3
1333     disable_safe "${struct}_${member}"
1334     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1335         enable_safe "${struct}_${member}"
1336 }
1337
1338 check_builtin(){
1339     log check_builtin "$@"
1340     name=$1
1341     headers=$2
1342     builtin=$3
1343     shift 3
1344     disable "$name"
1345     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1346 }
1347
1348 check_compile_assert(){
1349     log check_compile_assert "$@"
1350     name=$1
1351     headers=$2
1352     condition=$3
1353     shift 3
1354     disable "$name"
1355     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1356 }
1357
1358 require(){
1359     log require "$@"
1360     name_version="$1"
1361     name="${1%% *}"
1362     headers="$2"
1363     func="$3"
1364     shift 3
1365     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1366 }
1367
1368 require_cpp(){
1369     name="$1"
1370     headers="$2"
1371     classes="$3"
1372     shift 3
1373     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1374 }
1375
1376 require_header(){
1377     log require "$@"
1378     header="$1"
1379     shift
1380     check_header "$header" "$@" || die "ERROR: $header header not found"
1381 }
1382
1383 require_cpp_condition(){
1384     log require "$@"
1385     header="$1"
1386     condition="$2"
1387     shift 2
1388     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1389 }
1390
1391 use_pkg_config(){
1392     log use_pkg_config "$@"
1393     name="$1"
1394     shift
1395     pkg_version="$1"
1396     pkg="${1%% *}"
1397     test "$name" = "" && name=$pkg
1398     check_pkg_config "$@" || return 1
1399     add_cflags    $(get_safe "${pkg}_cflags")
1400     add_extralibs $(get_safe "${pkg}_extralibs")
1401 }
1402
1403 require_pkg_config(){
1404     use_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1405 }
1406
1407 hostcc_e(){
1408     eval printf '%s\\n' $HOSTCC_E
1409 }
1410
1411 hostcc_o(){
1412     eval printf '%s\\n' $HOSTCC_O
1413 }
1414
1415 check_host_cc(){
1416     log check_host_cc "$@"
1417     cat > $TMPC
1418     log_file $TMPC
1419     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1420 }
1421
1422 check_host_cpp(){
1423     log check_host_cpp "$@"
1424     cat > $TMPC
1425     log_file $TMPC
1426     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1427 }
1428
1429 check_host_cppflags(){
1430     log check_host_cppflags "$@"
1431     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1432 #include <stdlib.h>
1433 EOF
1434 }
1435
1436 check_host_cflags(){
1437     log check_host_cflags "$@"
1438     set -- $($host_cflags_filter "$@")
1439     check_host_cc "$@" <<EOF && append host_cflags "$@"
1440 int x;
1441 EOF
1442 }
1443
1444 check_host_cpp_condition(){
1445     log check_host_cpp_condition "$@"
1446     header=$1
1447     condition=$2
1448     shift 2
1449     check_host_cpp "$@" <<EOF
1450 #include <$header>
1451 #if !($condition)
1452 #error "unsatisfied condition: $condition"
1453 #endif
1454 EOF
1455 }
1456
1457 cp_if_changed(){
1458     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1459     mkdir -p "$(dirname $2)"
1460     cp -f "$1" "$2"
1461 }
1462
1463 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1464 # system-dependent things.
1465
1466 AVCODEC_COMPONENTS="
1467     bsfs
1468     decoders
1469     encoders
1470     hwaccels
1471     parsers
1472 "
1473
1474 AVDEVICE_COMPONENTS="
1475     indevs
1476     outdevs
1477 "
1478
1479 AVFILTER_COMPONENTS="
1480     filters
1481 "
1482
1483 AVFORMAT_COMPONENTS="
1484     demuxers
1485     muxers
1486     protocols
1487 "
1488
1489 AVRESAMPLE_COMPONENTS=""
1490
1491 AVUTIL_COMPONENTS=""
1492
1493 COMPONENT_LIST="
1494     $AVCODEC_COMPONENTS
1495     $AVDEVICE_COMPONENTS
1496     $AVFILTER_COMPONENTS
1497     $AVFORMAT_COMPONENTS
1498     $AVRESAMPLE_COMPONENTS
1499     $AVUTIL_COMPONENTS
1500 "
1501
1502 EXAMPLE_LIST="
1503     avio_dir_cmd_example
1504     avio_reading_example
1505     decode_audio_example
1506     decode_video_example
1507     demuxing_decoding_example
1508     encode_audio_example
1509     encode_video_example
1510     extract_mvs_example
1511     filter_audio_example
1512     filtering_audio_example
1513     filtering_video_example
1514     http_multiclient_example
1515     hw_decode_example
1516     metadata_example
1517     muxing_example
1518     qsvdec_example
1519     remuxing_example
1520     resampling_audio_example
1521     scaling_video_example
1522     transcode_aac_example
1523     transcoding_example
1524 "
1525
1526 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1527     alsa
1528     appkit
1529     avfoundation
1530     bzlib
1531     coreimage
1532     iconv
1533     jack
1534     libxcb
1535     libxcb_shm
1536     libxcb_shape
1537     libxcb_xfixes
1538     lzma
1539     schannel
1540     sdl2
1541     securetransport
1542     sndio
1543     xlib
1544     zlib
1545 "
1546
1547 EXTERNAL_LIBRARY_GPL_LIST="
1548     avisynth
1549     frei0r
1550     libcdio
1551     librubberband
1552     libvidstab
1553     libx264
1554     libx265
1555     libxavs
1556     libxvid
1557 "
1558
1559 EXTERNAL_LIBRARY_NONFREE_LIST="
1560     decklink
1561     libndi_newtek
1562     libfdk_aac
1563     openssl
1564 "
1565
1566 EXTERNAL_LIBRARY_VERSION3_LIST="
1567     gmp
1568     libopencore_amrnb
1569     libopencore_amrwb
1570     libvo_amrwbenc
1571     rkmpp
1572 "
1573
1574 EXTERNAL_LIBRARY_GPLV3_LIST="
1575     libsmbclient
1576 "
1577
1578 EXTERNAL_LIBRARY_LIST="
1579     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1580     $EXTERNAL_LIBRARY_GPL_LIST
1581     $EXTERNAL_LIBRARY_NONFREE_LIST
1582     $EXTERNAL_LIBRARY_VERSION3_LIST
1583     $EXTERNAL_LIBRARY_GPLV3_LIST
1584     chromaprint
1585     gcrypt
1586     gnutls
1587     jni
1588     ladspa
1589     libass
1590     libbluray
1591     libbs2b
1592     libcaca
1593     libcelt
1594     libdc1394
1595     libdrm
1596     libflite
1597     libfontconfig
1598     libfreetype
1599     libfribidi
1600     libgme
1601     libgsm
1602     libiec61883
1603     libilbc
1604     libkvazaar
1605     libmodplug
1606     libmp3lame
1607     libmysofa
1608     libopencv
1609     libopenh264
1610     libopenjpeg
1611     libopenmpt
1612     libopus
1613     libpulse
1614     librsvg
1615     librtmp
1616     libshine
1617     libsmbclient
1618     libsnappy
1619     libsoxr
1620     libspeex
1621     libssh
1622     libtesseract
1623     libtheora
1624     libtwolame
1625     libv4l2
1626     libvmaf
1627     libvorbis
1628     libvpx
1629     libwavpack
1630     libwebp
1631     libxml2
1632     libzimg
1633     libzmq
1634     libzvbi
1635     mediacodec
1636     openal
1637     opencl
1638     opengl
1639 "
1640
1641 HWACCEL_AUTODETECT_LIBRARY_LIST="
1642     audiotoolbox
1643     crystalhd
1644     cuda
1645     cuvid
1646     d3d11va
1647     dxva2
1648     nvenc
1649     vaapi
1650     vda
1651     vdpau
1652     videotoolbox
1653     v4l2_m2m
1654     xvmc
1655 "
1656
1657 HWACCEL_LIBRARY_NONFREE_LIST="
1658     cuda_sdk
1659     libnpp
1660 "
1661
1662 HWACCEL_LIBRARY_LIST="
1663     $HWACCEL_AUTODETECT_LIBRARY_LIST
1664     $HWACCEL_LIBRARY_NONFREE_LIST
1665     libmfx
1666     mmal
1667     omx
1668 "
1669
1670 DOCUMENT_LIST="
1671     doc
1672     htmlpages
1673     manpages
1674     podpages
1675     txtpages
1676 "
1677
1678 FEATURE_LIST="
1679     ftrapv
1680     gray
1681     hardcoded_tables
1682     omx_rpi
1683     runtime_cpudetect
1684     safe_bitstream_reader
1685     shared
1686     small
1687     static
1688     swscale_alpha
1689 "
1690
1691 LIBRARY_LIST="
1692     avcodec
1693     avdevice
1694     avfilter
1695     avformat
1696     avresample
1697     avutil
1698     postproc
1699     swresample
1700     swscale
1701 "
1702
1703 LICENSE_LIST="
1704     gpl
1705     nonfree
1706     version3
1707 "
1708
1709 PROGRAM_LIST="
1710     ffplay
1711     ffprobe
1712     ffserver
1713     ffmpeg
1714 "
1715
1716 SUBSYSTEM_LIST="
1717     dct
1718     dwt
1719     error_resilience
1720     faan
1721     fast_unaligned
1722     fft
1723     lsp
1724     lzo
1725     mdct
1726     pixelutils
1727     network
1728     rdft
1729 "
1730
1731 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1732 CONFIG_LIST="
1733     $DOCUMENT_LIST
1734     $EXAMPLE_LIST
1735     $EXTERNAL_LIBRARY_LIST
1736     $HWACCEL_LIBRARY_LIST
1737     $FEATURE_LIST
1738     $LICENSE_LIST
1739     $LIBRARY_LIST
1740     $PROGRAM_LIST
1741     $SUBSYSTEM_LIST
1742     autodetect
1743     fontconfig
1744     linux_perf
1745     memory_poisoning
1746     neon_clobber_test
1747     ossfuzz
1748     pic
1749     thumb
1750     valgrind_backtrace
1751     xmm_clobber_test
1752     $COMPONENT_LIST
1753 "
1754
1755 THREADS_LIST="
1756     pthreads
1757     os2threads
1758     w32threads
1759 "
1760
1761 ATOMICS_LIST="
1762     atomics_gcc
1763     atomics_suncc
1764     atomics_win32
1765 "
1766
1767 AUTODETECT_LIBS="
1768     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1769     $HWACCEL_AUTODETECT_LIBRARY_LIST
1770     $THREADS_LIST
1771 "
1772
1773 ARCH_LIST="
1774     aarch64
1775     alpha
1776     arm
1777     avr32
1778     avr32_ap
1779     avr32_uc
1780     bfin
1781     ia64
1782     m68k
1783     mips
1784     mips64
1785     parisc
1786     ppc
1787     ppc64
1788     s390
1789     sh4
1790     sparc
1791     sparc64
1792     tilegx
1793     tilepro
1794     tomi
1795     x86
1796     x86_32
1797     x86_64
1798 "
1799
1800 ARCH_EXT_LIST_ARM="
1801     armv5te
1802     armv6
1803     armv6t2
1804     armv8
1805     neon
1806     vfp
1807     vfpv3
1808     setend
1809 "
1810
1811 ARCH_EXT_LIST_MIPS="
1812     mipsfpu
1813     mips32r2
1814     mips32r5
1815     mips64r2
1816     mips32r6
1817     mips64r6
1818     mipsdsp
1819     mipsdspr2
1820     msa
1821 "
1822
1823 ARCH_EXT_LIST_LOONGSON="
1824     loongson2
1825     loongson3
1826     mmi
1827 "
1828
1829 ARCH_EXT_LIST_X86_SIMD="
1830     aesni
1831     amd3dnow
1832     amd3dnowext
1833     avx
1834     avx2
1835     fma3
1836     fma4
1837     mmx
1838     mmxext
1839     sse
1840     sse2
1841     sse3
1842     sse4
1843     sse42
1844     ssse3
1845     xop
1846 "
1847
1848 ARCH_EXT_LIST_PPC="
1849     altivec
1850     dcbzl
1851     ldbrx
1852     power8
1853     ppc4xx
1854     vsx
1855 "
1856
1857 ARCH_EXT_LIST_X86="
1858     $ARCH_EXT_LIST_X86_SIMD
1859     cpunop
1860     i686
1861 "
1862
1863 ARCH_EXT_LIST="
1864     $ARCH_EXT_LIST_ARM
1865     $ARCH_EXT_LIST_PPC
1866     $ARCH_EXT_LIST_X86
1867     $ARCH_EXT_LIST_MIPS
1868     $ARCH_EXT_LIST_LOONGSON
1869 "
1870
1871 ARCH_FEATURES="
1872     aligned_stack
1873     fast_64bit
1874     fast_clz
1875     fast_cmov
1876     local_aligned_8
1877     local_aligned_16
1878     local_aligned_32
1879     simd_align_16
1880     simd_align_32
1881 "
1882
1883 BUILTIN_LIST="
1884     atomic_cas_ptr
1885     machine_rw_barrier
1886     MemoryBarrier
1887     mm_empty
1888     rdtsc
1889     sarestart
1890     sem_timedwait
1891     sync_val_compare_and_swap
1892 "
1893 HAVE_LIST_CMDLINE="
1894     inline_asm
1895     symver
1896     x86asm
1897 "
1898
1899 HAVE_LIST_PUB="
1900     bigendian
1901     fast_unaligned
1902 "
1903
1904 HEADERS_LIST="
1905     altivec_h
1906     arpa_inet_h
1907     asm_types_h
1908     cdio_paranoia_h
1909     cdio_paranoia_paranoia_h
1910     cuda_h
1911     d3d11_h
1912     dispatch_dispatch_h
1913     dev_bktr_ioctl_bt848_h
1914     dev_bktr_ioctl_meteor_h
1915     dev_ic_bt8xx_h
1916     dev_video_bktr_ioctl_bt848_h
1917     dev_video_meteor_ioctl_meteor_h
1918     direct_h
1919     dirent_h
1920     dlfcn_h
1921     dxgidebug_h
1922     dxva_h
1923     ES2_gl_h
1924     gsm_h
1925     io_h
1926     mach_mach_time_h
1927     machine_ioctl_bt848_h
1928     machine_ioctl_meteor_h
1929     malloc_h
1930     opencv2_core_core_c_h
1931     openjpeg_2_2_openjpeg_h
1932     openjpeg_2_1_openjpeg_h
1933     openjpeg_2_0_openjpeg_h
1934     openjpeg_1_5_openjpeg_h
1935     OpenGL_gl3_h
1936     poll_h
1937     soundcard_h
1938     stdatomic_h
1939     sys_mman_h
1940     sys_param_h
1941     sys_resource_h
1942     sys_select_h
1943     sys_soundcard_h
1944     sys_time_h
1945     sys_un_h
1946     sys_videoio_h
1947     termios_h
1948     udplite_h
1949     unistd_h
1950     valgrind_valgrind_h
1951     windows_h
1952     winsock2_h
1953 "
1954
1955 INTRINSICS_LIST="
1956     intrinsics_neon
1957 "
1958
1959 COMPLEX_FUNCS="
1960     cabs
1961     cexp
1962 "
1963
1964 MATH_FUNCS="
1965     atanf
1966     atan2f
1967     cbrt
1968     cbrtf
1969     copysign
1970     cosf
1971     erf
1972     exp2
1973     exp2f
1974     expf
1975     hypot
1976     isfinite
1977     isinf
1978     isnan
1979     ldexpf
1980     llrint
1981     llrintf
1982     log2
1983     log2f
1984     log10f
1985     lrint
1986     lrintf
1987     powf
1988     rint
1989     round
1990     roundf
1991     sinf
1992     trunc
1993     truncf
1994 "
1995
1996 SYSTEM_FUNCS="
1997     access
1998     aligned_malloc
1999     arc4random
2000     clock_gettime
2001     closesocket
2002     CommandLineToArgvW
2003     CoTaskMemFree
2004     CryptGenRandom
2005     dlopen
2006     fcntl
2007     flt_lim
2008     fork
2009     getaddrinfo
2010     gethrtime
2011     getopt
2012     GetProcessAffinityMask
2013     GetProcessMemoryInfo
2014     GetProcessTimes
2015     getrusage
2016     GetSystemTimeAsFileTime
2017     gettimeofday
2018     glob
2019     glXGetProcAddress
2020     gmtime_r
2021     inet_aton
2022     isatty
2023     jack_port_get_latency_range
2024     kbhit
2025     LoadLibrary
2026     localtime_r
2027     lstat
2028     lzo1x_999_compress
2029     mach_absolute_time
2030     MapViewOfFile
2031     memalign
2032     mkstemp
2033     mmap
2034     mprotect
2035     nanosleep
2036     PeekNamedPipe
2037     posix_memalign
2038     pthread_cancel
2039     sched_getaffinity
2040     SetConsoleTextAttribute
2041     SetConsoleCtrlHandler
2042     setmode
2043     setrlimit
2044     Sleep
2045     strerror_r
2046     sysconf
2047     sysctl
2048     usleep
2049     UTGetOSTypeFromString
2050     VirtualAlloc
2051     wglGetProcAddress
2052 "
2053
2054 TOOLCHAIN_FEATURES="
2055     as_dn_directive
2056     as_fpu_directive
2057     as_func
2058     as_object_arch
2059     asm_mod_q
2060     attribute_may_alias
2061     attribute_packed
2062     blocks_extension
2063     ebp_available
2064     ebx_available
2065     gnu_as
2066     gnu_windres
2067     ibm_asm
2068     inline_asm_direct_symbol_refs
2069     inline_asm_labels
2070     inline_asm_nonlocal_labels
2071     pragma_deprecated
2072     rsync_contimeout
2073     symver_asm_label
2074     symver_gnu_asm
2075     vfp_args
2076     xform_asm
2077     xmm_clobbers
2078 "
2079
2080 TYPES_LIST="
2081     CONDITION_VARIABLE_Ptr
2082     socklen_t
2083     struct_addrinfo
2084     struct_group_source_req
2085     struct_ip_mreq_source
2086     struct_ipv6_mreq
2087     struct_msghdr_msg_flags
2088     struct_pollfd
2089     struct_rusage_ru_maxrss
2090     struct_sctp_event_subscribe
2091     struct_sockaddr_in6
2092     struct_sockaddr_sa_len
2093     struct_sockaddr_storage
2094     struct_stat_st_mtim_tv_nsec
2095     struct_v4l2_frmivalenum_discrete
2096 "
2097
2098 HAVE_LIST="
2099     $ARCH_EXT_LIST
2100     $(add_suffix _external $ARCH_EXT_LIST)
2101     $(add_suffix _inline   $ARCH_EXT_LIST)
2102     $ARCH_FEATURES
2103     $ATOMICS_LIST
2104     $BUILTIN_LIST
2105     $COMPLEX_FUNCS
2106     $HAVE_LIST_CMDLINE
2107     $HAVE_LIST_PUB
2108     $HEADERS_LIST
2109     $INTRINSICS_LIST
2110     $MATH_FUNCS
2111     $SYSTEM_FUNCS
2112     $THREADS_LIST
2113     $TOOLCHAIN_FEATURES
2114     $TYPES_LIST
2115     atomics_native
2116     dos_paths
2117     libc_msvcrt
2118     makeinfo
2119     makeinfo_html
2120     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2121     perl
2122     pod2man
2123     section_data_rel_ro
2124     texi2html
2125     threads
2126     uwp
2127     vaapi_drm
2128     vaapi_x11
2129     vdpau_x11
2130     winrt
2131 "
2132
2133 # options emitted with CONFIG_ prefix but not available on the command line
2134 CONFIG_EXTRA="
2135     aandcttables
2136     ac3dsp
2137     audio_frame_queue
2138     audiodsp
2139     blockdsp
2140     bswapdsp
2141     cabac
2142     dirac_parse
2143     dvprofile
2144     exif
2145     faandct
2146     faanidct
2147     fdctdsp
2148     flacdsp
2149     fmtconvert
2150     frame_thread_encoder
2151     g722dsp
2152     golomb
2153     gplv3
2154     h263dsp
2155     h264chroma
2156     h264dsp
2157     h264parse
2158     h264pred
2159     h264qpel
2160     hevcparse
2161     hpeldsp
2162     huffman
2163     huffyuvdsp
2164     huffyuvencdsp
2165     idctdsp
2166     iirfilter
2167     mdct15
2168     intrax8
2169     iso_media
2170     ividsp
2171     jpegtables
2172     lgplv3
2173     libx262
2174     llauddsp
2175     llviddsp
2176     llvidencdsp
2177     lpc
2178     lzf
2179     me_cmp
2180     mpeg_er
2181     mpegaudio
2182     mpegaudiodsp
2183     mpegaudioheader
2184     mpegvideo
2185     mpegvideoenc
2186     mss34dsp
2187     pixblockdsp
2188     qpeldsp
2189     qsv
2190     qsvdec
2191     qsvenc
2192     rangecoder
2193     riffdec
2194     riffenc
2195     rtpdec
2196     rtpenc_chain
2197     rv34dsp
2198     sinewin
2199     snappy
2200     srtp
2201     startcode
2202     texturedsp
2203     texturedspenc
2204     tpeldsp
2205     vaapi_encode
2206     vc1dsp
2207     videodsp
2208     vp3dsp
2209     vp56dsp
2210     vp8dsp
2211     wma_freqs
2212     wmv2dsp
2213 "
2214
2215 CMDLINE_SELECT="
2216     $ARCH_EXT_LIST
2217     $CONFIG_LIST
2218     $HAVE_LIST_CMDLINE
2219     $THREADS_LIST
2220     asm
2221     cross_compile
2222     debug
2223     extra_warnings
2224     logging
2225     lto
2226     optimizations
2227     rpath
2228     stripping
2229 "
2230
2231 PATHS_LIST="
2232     bindir
2233     datadir
2234     docdir
2235     incdir
2236     libdir
2237     mandir
2238     pkgconfigdir
2239     prefix
2240     shlibdir
2241     install_name_dir
2242 "
2243
2244 CMDLINE_SET="
2245     $PATHS_LIST
2246     ar
2247     arch
2248     as
2249     assert_level
2250     build_suffix
2251     cc
2252     objcc
2253     cpu
2254     cross_prefix
2255     custom_allocator
2256     cxx
2257     dep_cc
2258     doxygen
2259     env
2260     extra_version
2261     gas
2262     host_cc
2263     host_cflags
2264     host_extralibs
2265     host_ld
2266     host_ldflags
2267     host_os
2268     ignore_tests
2269     install
2270     ld
2271     ln_s
2272     logfile
2273     malloc_prefix
2274     nm
2275     optflags
2276     nvccflags
2277     pkg_config
2278     pkg_config_flags
2279     progs_suffix
2280     random_seed
2281     ranlib
2282     samples
2283     strip
2284     sws_max_filter_size
2285     sysinclude
2286     sysroot
2287     target_exec
2288     target_os
2289     target_path
2290     target_samples
2291     tempprefix
2292     toolchain
2293     valgrind
2294     x86asmexe
2295 "
2296
2297 CMDLINE_APPEND="
2298     extra_cflags
2299     extra_cxxflags
2300     extra_objcflags
2301     host_cppflags
2302 "
2303
2304 # code dependency declarations
2305
2306 # architecture extensions
2307
2308 armv5te_deps="arm"
2309 armv6_deps="arm"
2310 armv6t2_deps="arm"
2311 armv8_deps="aarch64"
2312 neon_deps_any="aarch64 arm"
2313 intrinsics_neon_deps="neon"
2314 vfp_deps_any="aarch64 arm"
2315 vfpv3_deps="vfp"
2316 setend_deps="arm"
2317
2318 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2319
2320 loongson2_deps="mips"
2321 loongson3_deps="mips"
2322 mipsfpu_deps="mips"
2323 mipsdsp_deps="mips"
2324 mipsdspr2_deps="mips"
2325 mips32r2_deps="mips"
2326 mips32r5_deps="mips"
2327 mips32r6_deps="mips"
2328 mips64r2_deps="mips"
2329 mips64r6_deps="mips"
2330 msa_deps="mipsfpu"
2331 mmi_deps="mips"
2332
2333 altivec_deps="ppc"
2334 dcbzl_deps="ppc"
2335 ldbrx_deps="ppc"
2336 ppc4xx_deps="ppc"
2337 vsx_deps="altivec"
2338 power8_deps="vsx"
2339
2340 cpunop_deps="i686"
2341 x86_64_select="i686"
2342 x86_64_suggest="fast_cmov"
2343
2344 amd3dnow_deps="mmx"
2345 amd3dnowext_deps="amd3dnow"
2346 i686_deps="x86"
2347 mmx_deps="x86"
2348 mmxext_deps="mmx"
2349 sse_deps="mmxext"
2350 sse2_deps="sse"
2351 sse3_deps="sse2"
2352 ssse3_deps="sse3"
2353 sse4_deps="ssse3"
2354 sse42_deps="sse4"
2355 aesni_deps="sse42"
2356 avx_deps="sse42"
2357 xop_deps="avx"
2358 fma3_deps="avx"
2359 fma4_deps="avx"
2360 avx2_deps="avx"
2361
2362 mmx_external_deps="x86asm"
2363 mmx_inline_deps="inline_asm"
2364 mmx_suggest="mmx_external mmx_inline"
2365
2366 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2367     eval dep=\$${ext}_deps
2368     eval ${ext}_external_deps='"${dep}_external"'
2369     eval ${ext}_inline_deps='"${dep}_inline"'
2370     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2371 done
2372
2373 aligned_stack_if_any="aarch64 ppc x86"
2374 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2375 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2376 fast_unaligned_if_any="aarch64 ppc x86"
2377 simd_align_16_if_any="altivec neon sse"
2378 simd_align_32_if_any="avx"
2379
2380 # system capabilities
2381 symver_if_any="symver_asm_label symver_gnu_asm"
2382 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2383
2384 # threading support
2385 atomics_gcc_if="sync_val_compare_and_swap"
2386 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2387 atomics_win32_if="MemoryBarrier"
2388 atomics_native_if_any="$ATOMICS_LIST"
2389 w32threads_deps="atomics_native"
2390 threads_if_any="$THREADS_LIST"
2391
2392 # subsystems
2393 dct_select="rdft"
2394 dirac_parse_select="golomb"
2395 error_resilience_select="me_cmp"
2396 faandct_deps="faan fdctdsp"
2397 faanidct_deps="faan idctdsp"
2398 h264dsp_select="startcode"
2399 hevcparse_select="golomb"
2400 frame_thread_encoder_deps="encoders threads"
2401 intrax8_select="blockdsp idctdsp"
2402 mdct_select="fft"
2403 mdct15_select="fft"
2404 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2405 mpeg_er_select="error_resilience"
2406 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2407 mpegaudiodsp_select="dct"
2408 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2409 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2410 vc1dsp_select="h264chroma qpeldsp startcode"
2411 rdft_select="fft"
2412
2413 # decoders / encoders
2414 aac_decoder_select="mdct15 mdct sinewin"
2415 aac_fixed_decoder_select="mdct sinewin"
2416 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2417 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2418 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2419 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2420 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2421 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2422 adpcm_g722_decoder_select="g722dsp"
2423 adpcm_g722_encoder_select="g722dsp"
2424 aic_decoder_select="golomb idctdsp"
2425 alac_encoder_select="lpc"
2426 als_decoder_select="bswapdsp"
2427 amrnb_decoder_select="lsp"
2428 amrwb_decoder_select="lsp"
2429 amv_decoder_select="sp5x_decoder exif"
2430 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2431 ape_decoder_select="bswapdsp llauddsp"
2432 apng_decoder_select="zlib"
2433 apng_encoder_select="llvidencdsp zlib"
2434 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2435 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2436 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2437 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2438 atrac1_decoder_select="mdct sinewin"
2439 atrac3_decoder_select="mdct"
2440 atrac3p_decoder_select="mdct sinewin"
2441 avrn_decoder_select="exif jpegtables"
2442 bink_decoder_select="blockdsp hpeldsp"
2443 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2444 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2445 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2446 clearvideo_decoder_select="idctdsp"
2447 cllc_decoder_select="bswapdsp"
2448 comfortnoise_encoder_select="lpc"
2449 cook_decoder_select="audiodsp mdct sinewin"
2450 cscd_decoder_select="lzo"
2451 cscd_decoder_suggest="zlib"
2452 dca_decoder_select="mdct"
2453 dds_decoder_select="texturedsp"
2454 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2455 dnxhd_decoder_select="blockdsp idctdsp"
2456 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2457 dolby_e_decoder_select="mdct"
2458 dvvideo_decoder_select="dvprofile idctdsp"
2459 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2460 dxa_decoder_select="zlib"
2461 dxv_decoder_select="lzf texturedsp"
2462 eac3_decoder_select="ac3_decoder"
2463 eac3_encoder_select="ac3_encoder"
2464 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2465 eatgq_decoder_select="aandcttables"
2466 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2467 exr_decoder_select="zlib"
2468 ffv1_decoder_select="rangecoder"
2469 ffv1_encoder_select="rangecoder"
2470 ffvhuff_decoder_select="huffyuv_decoder"
2471 ffvhuff_encoder_select="huffyuv_encoder"
2472 fic_decoder_select="golomb"
2473 flac_decoder_select="flacdsp"
2474 flac_encoder_select="bswapdsp flacdsp lpc"
2475 flashsv2_decoder_select="zlib"
2476 flashsv2_encoder_select="zlib"
2477 flashsv_decoder_select="zlib"
2478 flashsv_encoder_select="zlib"
2479 flv_decoder_select="h263_decoder"
2480 flv_encoder_select="h263_encoder"
2481 fourxm_decoder_select="blockdsp bswapdsp"
2482 fraps_decoder_select="bswapdsp huffman"
2483 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2484 g729_decoder_select="audiodsp"
2485 h261_decoder_select="mpegvideo"
2486 h261_encoder_select="aandcttables mpegvideoenc"
2487 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2488 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2489 h263i_decoder_select="h263_decoder"
2490 h263p_decoder_select="h263_decoder"
2491 h263p_encoder_select="h263_encoder"
2492 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2493 h264_decoder_suggest="error_resilience"
2494 hap_decoder_select="snappy texturedsp"
2495 hap_encoder_deps="libsnappy"
2496 hap_encoder_select="texturedspenc"
2497 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2498 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2499 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2500 iac_decoder_select="imc_decoder"
2501 imc_decoder_select="bswapdsp fft mdct sinewin"
2502 indeo3_decoder_select="hpeldsp"
2503 indeo4_decoder_select="ividsp"
2504 indeo5_decoder_select="ividsp"
2505 interplay_video_decoder_select="hpeldsp"
2506 jpegls_decoder_select="mjpeg_decoder"
2507 jv_decoder_select="blockdsp"
2508 lagarith_decoder_select="llviddsp"
2509 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2510 magicyuv_decoder_select="llviddsp"
2511 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2512 metasound_decoder_select="lsp mdct sinewin"
2513 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2514 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2515 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2516 mjpegb_decoder_select="mjpeg_decoder"
2517 mlp_decoder_select="mlp_parser"
2518 mlp_encoder_select="lpc"
2519 motionpixels_decoder_select="bswapdsp"
2520 mp1_decoder_select="mpegaudio"
2521 mp1float_decoder_select="mpegaudio"
2522 mp2_decoder_select="mpegaudio"
2523 mp2float_decoder_select="mpegaudio"
2524 mp3_decoder_select="mpegaudio"
2525 mp3adu_decoder_select="mpegaudio"
2526 mp3adufloat_decoder_select="mpegaudio"
2527 mp3float_decoder_select="mpegaudio"
2528 mp3on4_decoder_select="mpegaudio"
2529 mp3on4float_decoder_select="mpegaudio"
2530 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2531 mpc8_decoder_select="mpegaudiodsp"
2532 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2533 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2534 mpegvideo_decoder_select="mpegvideo"
2535 mpeg1video_decoder_select="mpegvideo"
2536 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2537 mpeg2video_decoder_select="mpegvideo"
2538 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2539 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2540 mpeg4_encoder_select="h263_encoder"
2541 msa1_decoder_select="mss34dsp"
2542 mscc_decoder_select="zlib"
2543 msmpeg4v1_decoder_select="h263_decoder"
2544 msmpeg4v2_decoder_select="h263_decoder"
2545 msmpeg4v2_encoder_select="h263_encoder"
2546 msmpeg4v3_decoder_select="h263_decoder"
2547 msmpeg4v3_encoder_select="h263_encoder"
2548 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2549 mts2_decoder_select="mss34dsp"
2550 mxpeg_decoder_select="mjpeg_decoder"
2551 nellymoser_decoder_select="mdct sinewin"
2552 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2553 nuv_decoder_select="idctdsp lzo"
2554 on2avc_decoder_select="mdct"
2555 opus_decoder_deps="swresample"
2556 opus_decoder_select="mdct15"
2557 opus_encoder_select="audio_frame_queue mdct15"
2558 png_decoder_select="zlib"
2559 png_encoder_select="llvidencdsp zlib"
2560 prores_decoder_select="blockdsp idctdsp"
2561 prores_encoder_select="fdctdsp"
2562 qcelp_decoder_select="lsp"
2563 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2564 ra_144_decoder_select="audiodsp"
2565 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2566 ralf_decoder_select="golomb"
2567 rawvideo_decoder_select="bswapdsp"
2568 rscc_decoder_select="zlib"
2569 rtjpeg_decoder_select="me_cmp"
2570 rv10_decoder_select="h263_decoder"
2571 rv10_encoder_select="h263_encoder"
2572 rv20_decoder_select="h263_decoder"
2573 rv20_encoder_select="h263_encoder"
2574 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2575 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2576 screenpresso_decoder_select="zlib"
2577 shorten_decoder_select="bswapdsp"
2578 sipr_decoder_select="lsp"
2579 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2580 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2581 sonic_decoder_select="golomb rangecoder"
2582 sonic_encoder_select="golomb rangecoder"
2583 sonic_ls_encoder_select="golomb rangecoder"
2584 sp5x_decoder_select="mjpeg_decoder"
2585 srgc_decoder_select="zlib"
2586 svq1_decoder_select="hpeldsp"
2587 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2588 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2589 svq3_decoder_suggest="zlib"
2590 tak_decoder_select="audiodsp"
2591 tdsc_decoder_select="zlib mjpeg_decoder"
2592 theora_decoder_select="vp3_decoder"
2593 thp_decoder_select="mjpeg_decoder"
2594 tiff_decoder_suggest="zlib lzma"
2595 tiff_encoder_suggest="zlib"
2596 truehd_decoder_select="mlp_parser"
2597 truehd_encoder_select="lpc"
2598 truemotion2_decoder_select="bswapdsp"
2599 truespeech_decoder_select="bswapdsp"
2600 tscc_decoder_select="zlib"
2601 twinvq_decoder_select="mdct lsp sinewin"
2602 txd_decoder_select="texturedsp"
2603 utvideo_decoder_select="bswapdsp llviddsp"
2604 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2605 vble_decoder_select="llviddsp"
2606 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2607 vc1_qsv_decoder_deps="libmfx"
2608 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2609 vc1image_decoder_select="vc1_decoder"
2610 vorbis_decoder_select="mdct"
2611 vorbis_encoder_select="mdct"
2612 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2613 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2614 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2615 vp6a_decoder_select="vp6_decoder"
2616 vp6f_decoder_select="vp6_decoder"
2617 vp7_decoder_select="h264pred videodsp vp8dsp"
2618 vp8_decoder_select="h264pred videodsp vp8dsp"
2619 vp9_decoder_select="videodsp vp9_parser"
2620 webp_decoder_select="vp8_decoder exif"
2621 wmalossless_decoder_select="llauddsp"
2622 wmapro_decoder_select="mdct sinewin wma_freqs"
2623 wmav1_decoder_select="mdct sinewin wma_freqs"
2624 wmav1_encoder_select="mdct sinewin wma_freqs"
2625 wmav2_decoder_select="mdct sinewin wma_freqs"
2626 wmav2_encoder_select="mdct sinewin wma_freqs"
2627 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2628 wmv1_decoder_select="h263_decoder"
2629 wmv1_encoder_select="h263_encoder"
2630 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2631 wmv2_encoder_select="h263_encoder wmv2dsp"
2632 wmv3_decoder_select="vc1_decoder"
2633 wmv3image_decoder_select="wmv3_decoder"
2634 xma1_decoder_select="wmapro_decoder"
2635 xma2_decoder_select="wmapro_decoder"
2636 zerocodec_decoder_select="zlib"
2637 zlib_decoder_select="zlib"
2638 zlib_encoder_select="zlib"
2639 zmbv_decoder_select="zlib"
2640 zmbv_encoder_select="zlib"
2641
2642 # hardware accelerators
2643 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2644 cuda_deps_any="dlopen LoadLibrary"
2645 cuvid_deps="cuda"
2646 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2647 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2648 dxva2_extralibs="-luser32"
2649 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2650 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2651 vda_deps="vda_framework pthreads"
2652 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2653 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2654 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2655 xvmc_deps="X11_extensions_XvMClib_h"
2656
2657 h263_vaapi_hwaccel_deps="vaapi"
2658 h263_vaapi_hwaccel_select="h263_decoder"
2659 h263_videotoolbox_hwaccel_deps="videotoolbox"
2660 h263_videotoolbox_hwaccel_select="h263_decoder"
2661 h264_cuvid_hwaccel_deps="cuda cuvid"
2662 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2663 h264_d3d11va_hwaccel_deps="d3d11va"
2664 h264_d3d11va_hwaccel_select="h264_decoder"
2665 h264_d3d11va2_hwaccel_deps="d3d11va"
2666 h264_d3d11va2_hwaccel_select="h264_decoder"
2667 h264_dxva2_hwaccel_deps="dxva2"
2668 h264_dxva2_hwaccel_select="h264_decoder"
2669 h264_mediacodec_hwaccel_deps="mediacodec"
2670 h264_mmal_hwaccel_deps="mmal"
2671 h264_qsv_hwaccel_deps="libmfx"
2672 h264_vaapi_hwaccel_deps="vaapi"
2673 h264_vaapi_hwaccel_select="h264_decoder"
2674 h264_vda_hwaccel_deps="vda"
2675 h264_vda_hwaccel_select="h264_decoder"
2676 h264_vda_old_hwaccel_deps="vda"
2677 h264_vda_old_hwaccel_select="h264_decoder"
2678 h264_vdpau_hwaccel_deps="vdpau"
2679 h264_vdpau_hwaccel_select="h264_decoder"
2680 h264_videotoolbox_hwaccel_deps="videotoolbox"
2681 h264_videotoolbox_hwaccel_select="h264_decoder"
2682 hevc_cuvid_hwaccel_deps="cuda cuvid"
2683 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2684 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2685 hevc_d3d11va_hwaccel_select="hevc_decoder"
2686 hevc_mediacodec_hwaccel_deps="mediacodec"
2687 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2688 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2689 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2690 hevc_dxva2_hwaccel_select="hevc_decoder"
2691 hevc_qsv_hwaccel_deps="libmfx"
2692 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2693 hevc_vaapi_hwaccel_select="hevc_decoder"
2694 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2695 hevc_vdpau_hwaccel_select="hevc_decoder"
2696 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2697 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2698 mpeg_xvmc_hwaccel_deps="xvmc"
2699 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2700 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2701 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2702 mpeg1_vdpau_hwaccel_deps="vdpau"
2703 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2704 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2705 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2706 mpeg1_xvmc_hwaccel_deps="xvmc"
2707 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2708 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2709 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2710 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2711 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2712 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2713 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2714 mpeg2_dxva2_hwaccel_deps="dxva2"
2715 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2716 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2717 mpeg2_mmal_hwaccel_deps="mmal"
2718 mpeg2_qsv_hwaccel_deps="libmfx"
2719 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2720 mpeg2_vaapi_hwaccel_deps="vaapi"
2721 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2722 mpeg2_vdpau_hwaccel_deps="vdpau"
2723 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2724 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2725 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2726 mpeg2_xvmc_hwaccel_deps="xvmc"
2727 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2728 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2729 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2730 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2731 mpeg4_mmal_hwaccel_deps="mmal"
2732 mpeg4_vaapi_hwaccel_deps="vaapi"
2733 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2734 mpeg4_vdpau_hwaccel_deps="vdpau"
2735 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2736 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2737 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2738 vc1_cuvid_hwaccel_deps="cuda cuvid"
2739 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2740 vc1_d3d11va_hwaccel_deps="d3d11va"
2741 vc1_d3d11va_hwaccel_select="vc1_decoder"
2742 vc1_d3d11va2_hwaccel_deps="d3d11va"
2743 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2744 vc1_dxva2_hwaccel_deps="dxva2"
2745 vc1_dxva2_hwaccel_select="vc1_decoder"
2746 vc1_mmal_hwaccel_deps="mmal"
2747 vc1_qsv_hwaccel_deps="libmfx"
2748 vc1_qsv_hwaccel_select="qsvdec_vc1"
2749 vc1_vaapi_hwaccel_deps="vaapi"
2750 vc1_vaapi_hwaccel_select="vc1_decoder"
2751 vc1_vdpau_hwaccel_deps="vdpau"
2752 vc1_vdpau_hwaccel_select="vc1_decoder"
2753 vp8_cuvid_hwaccel_deps="cuda cuvid"
2754 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2755 vp9_cuvid_hwaccel_deps="cuda cuvid"
2756 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2757 vp8_mediacodec_hwaccel_deps="mediacodec"
2758 vp8_qsv_hwaccel_deps="libmfx"
2759 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2760 vp9_d3d11va_hwaccel_select="vp9_decoder"
2761 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2762 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2763 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2764 vp9_dxva2_hwaccel_select="vp9_decoder"
2765 vp9_mediacodec_hwaccel_deps="mediacodec"
2766 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2767 vp9_vaapi_hwaccel_select="vp9_decoder"
2768 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2769 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2770 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2771 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2772 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2773
2774 # hardware-accelerated codecs
2775 omx_deps="dlopen pthreads"
2776 omx_extralibs='$ldl'
2777 omx_rpi_select="omx"
2778 qsvdec_select="qsv"
2779 qsvenc_select="qsv"
2780 vaapi_encode_deps="vaapi"
2781 v4l2_m2m_deps_any="linux_videodev2_h"
2782
2783 hwupload_cuda_filter_deps="cuda"
2784 scale_npp_filter_deps="cuda libnpp"
2785 scale_cuda_filter_deps="cuda_sdk"
2786 thumbnail_cuda_filter_deps="cuda_sdk"
2787
2788 nvenc_deps="cuda"
2789 nvenc_deps_any="dlopen LoadLibrary"
2790 nvenc_encoder_deps="nvenc"
2791
2792 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2793 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2794 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2795 h264_cuvid_decoder_deps="cuda cuvid"
2796 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2797 h264_mediacodec_decoder_deps="mediacodec"
2798 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2799 h264_mmal_decoder_deps="mmal"
2800 h264_nvenc_encoder_deps="nvenc"
2801 h264_omx_encoder_deps="omx"
2802 h264_qsv_decoder_deps="libmfx"
2803 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2804 h264_qsv_encoder_deps="libmfx"
2805 h264_qsv_encoder_select="qsvenc"
2806 h264_rkmpp_decoder_deps="rkmpp"
2807 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2808 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2809 h264_vaapi_encoder_select="vaapi_encode golomb"
2810 h264_vda_decoder_deps="vda"
2811 h264_vda_decoder_select="h264_decoder"
2812 h264_vdpau_decoder_deps="vdpau"
2813 h264_vdpau_decoder_select="h264_decoder"
2814 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2815 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2816 hevc_cuvid_decoder_deps="cuda cuvid"
2817 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2818 hevc_mediacodec_decoder_deps="mediacodec"
2819 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2820 hevc_nvenc_encoder_deps="nvenc"
2821 hevc_qsv_decoder_deps="libmfx"
2822 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2823 hevc_qsv_encoder_deps="libmfx"
2824 hevc_qsv_encoder_select="hevcparse qsvenc"
2825 hevc_rkmpp_decoder_deps="rkmpp"
2826 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2827 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2828 hevc_vaapi_encoder_select="vaapi_encode golomb"
2829 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2830 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2831 mjpeg_cuvid_decoder_deps="cuda cuvid"
2832 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2833 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2834 mpeg1_cuvid_decoder_deps="cuda cuvid"
2835 mpeg1_vdpau_decoder_deps="vdpau"
2836 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2837 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2838 mpeg2_crystalhd_decoder_select="crystalhd"
2839 mpeg2_cuvid_decoder_deps="cuda cuvid"
2840 mpeg2_mmal_decoder_deps="mmal"
2841 mpeg2_mediacodec_decoder_deps="mediacodec"
2842 mpeg2_qsv_decoder_deps="libmfx"
2843 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2844 mpeg2_qsv_encoder_deps="libmfx"
2845 mpeg2_qsv_encoder_select="qsvenc"
2846 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2847 mpeg2_vaapi_encoder_select="vaapi_encode"
2848 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2849 mpeg4_crystalhd_decoder_select="crystalhd"
2850 mpeg4_cuvid_decoder_deps="cuda cuvid"
2851 mpeg4_mediacodec_decoder_deps="mediacodec"
2852 mpeg4_mmal_decoder_deps="mmal"
2853 mpeg4_omx_encoder_deps="omx"
2854 mpeg4_vdpau_decoder_deps="vdpau"
2855 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2856 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2857 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2858 mpeg_vdpau_decoder_deps="vdpau"
2859 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2860 msmpeg4_crystalhd_decoder_select="crystalhd"
2861 nvenc_h264_encoder_select="h264_nvenc_encoder"
2862 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2863 vc1_crystalhd_decoder_select="crystalhd"
2864 vc1_cuvid_decoder_deps="cuda cuvid"
2865 vc1_mmal_decoder_deps="mmal"
2866 vc1_vdpau_decoder_deps="vdpau"
2867 vc1_vdpau_decoder_select="vc1_decoder"
2868 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2869 vp8_cuvid_decoder_deps="cuda cuvid"
2870 vp8_mediacodec_decoder_deps="mediacodec"
2871 vp8_qsv_decoder_deps="libmfx"
2872 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2873 vp8_rkmpp_decoder_deps="rkmpp"
2874 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2875 vp8_vaapi_encoder_select="vaapi_encode"
2876 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2877 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2878 vp9_cuvid_decoder_deps="cuda cuvid"
2879 vp9_mediacodec_decoder_deps="mediacodec"
2880 vp9_rkmpp_decoder_deps="rkmpp"
2881 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2882 vp9_vaapi_encoder_select="vaapi_encode"
2883 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2884 wmv3_crystalhd_decoder_select="crystalhd"
2885 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2886
2887 # parsers
2888 h264_parser_select="golomb h264dsp h264parse"
2889 hevc_parser_select="hevcparse"
2890 mpegaudio_parser_select="mpegaudioheader"
2891 mpegvideo_parser_select="mpegvideo"
2892 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2893 vc1_parser_select="vc1dsp"
2894
2895 # bitstream_filters
2896 mjpeg2jpeg_bsf_select="jpegtables"
2897
2898 # external libraries
2899 aac_at_decoder_deps="audiotoolbox"
2900 ac3_at_decoder_deps="audiotoolbox"
2901 ac3_at_decoder_select="ac3_parser"
2902 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2903 alac_at_decoder_deps="audiotoolbox"
2904 amr_nb_at_decoder_deps="audiotoolbox"
2905 avisynth_deps_any="dlopen LoadLibrary"
2906 avisynth_demuxer_deps="avisynth"
2907 avisynth_demuxer_select="riffdec"
2908 eac3_at_decoder_deps="audiotoolbox"
2909 eac3_at_decoder_select="ac3_parser"
2910 gsm_ms_at_decoder_deps="audiotoolbox"
2911 ilbc_at_decoder_deps="audiotoolbox"
2912 mp1_at_decoder_deps="audiotoolbox"
2913 mp2_at_decoder_deps="audiotoolbox"
2914 mp3_at_decoder_deps="audiotoolbox"
2915 mp1_at_decoder_select="mpegaudioheader"
2916 mp2_at_decoder_select="mpegaudioheader"
2917 mp3_at_decoder_select="mpegaudioheader"
2918 pcm_alaw_at_decoder_deps="audiotoolbox"
2919 pcm_mulaw_at_decoder_deps="audiotoolbox"
2920 qdmc_at_decoder_deps="audiotoolbox"
2921 qdm2_at_decoder_deps="audiotoolbox"
2922 aac_at_encoder_deps="audiotoolbox"
2923 aac_at_encoder_select="audio_frame_queue"
2924 alac_at_encoder_deps="audiotoolbox"
2925 alac_at_encoder_select="audio_frame_queue"
2926 ilbc_at_encoder_deps="audiotoolbox"
2927 ilbc_at_encoder_select="audio_frame_queue"
2928 pcm_alaw_at_encoder_deps="audiotoolbox"
2929 pcm_alaw_at_encoder_select="audio_frame_queue"
2930 pcm_mulaw_at_encoder_deps="audiotoolbox"
2931 pcm_mulaw_at_encoder_select="audio_frame_queue"
2932 chromaprint_muxer_deps="chromaprint"
2933 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2934 libcelt_decoder_deps="libcelt"
2935 libfdk_aac_decoder_deps="libfdk_aac"
2936 libfdk_aac_encoder_deps="libfdk_aac"
2937 libfdk_aac_encoder_select="audio_frame_queue"
2938 libgme_demuxer_deps="libgme"
2939 libgsm_decoder_deps="libgsm"
2940 libgsm_encoder_deps="libgsm"
2941 libgsm_ms_decoder_deps="libgsm"
2942 libgsm_ms_encoder_deps="libgsm"
2943 libilbc_decoder_deps="libilbc"
2944 libilbc_encoder_deps="libilbc"
2945 libkvazaar_encoder_deps="libkvazaar"
2946 libmodplug_demuxer_deps="libmodplug"
2947 libmp3lame_encoder_deps="libmp3lame"
2948 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2949 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2950 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2951 libopencore_amrnb_encoder_select="audio_frame_queue"
2952 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2953 libopenh264_decoder_deps="libopenh264"
2954 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2955 libopenh264_encoder_deps="libopenh264"
2956 libopenjpeg_decoder_deps="libopenjpeg"
2957 libopenjpeg_encoder_deps="libopenjpeg"
2958 libopenmpt_demuxer_deps="libopenmpt"
2959 libopus_decoder_deps="libopus"
2960 libopus_encoder_deps="libopus"
2961 libopus_encoder_select="audio_frame_queue"
2962 librsvg_decoder_deps="librsvg"
2963 libshine_encoder_deps="libshine"
2964 libshine_encoder_select="audio_frame_queue"
2965 libspeex_decoder_deps="libspeex"
2966 libspeex_encoder_deps="libspeex"
2967 libspeex_encoder_select="audio_frame_queue"
2968 libtheora_encoder_deps="libtheora"
2969 libtwolame_encoder_deps="libtwolame"
2970 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2971 libvorbis_decoder_deps="libvorbis"
2972 libvorbis_encoder_deps="libvorbis"
2973 libvorbis_encoder_select="audio_frame_queue"
2974 libvpx_vp8_decoder_deps="libvpx"
2975 libvpx_vp8_encoder_deps="libvpx"
2976 libvpx_vp9_decoder_deps="libvpx"
2977 libvpx_vp9_encoder_deps="libvpx"
2978 libwavpack_encoder_deps="libwavpack"
2979 libwavpack_encoder_select="audio_frame_queue"
2980 libwebp_encoder_deps="libwebp"
2981 libwebp_anim_encoder_deps="libwebp"
2982 libx262_encoder_deps="libx262"
2983 libx264_encoder_deps="libx264"
2984 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2985 libx264rgb_encoder_select="libx264_encoder"
2986 libx265_encoder_deps="libx265"
2987 libxavs_encoder_deps="libxavs"
2988 libxvid_encoder_deps="libxvid"
2989 libzvbi_teletext_decoder_deps="libzvbi"
2990 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2991 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2992 videotoolbox_encoder_suggest="vda_framework"
2993
2994 # demuxers / muxers
2995 ac3_demuxer_select="ac3_parser"
2996 aiff_muxer_select="iso_media"
2997 asf_demuxer_select="riffdec"
2998 asf_o_demuxer_select="riffdec"
2999 asf_muxer_select="riffenc"
3000 asf_stream_muxer_select="asf_muxer"
3001 avi_demuxer_select="iso_media riffdec exif"
3002 avi_muxer_select="riffenc"
3003 caf_demuxer_select="iso_media riffdec"
3004 caf_muxer_select="iso_media"
3005 dash_muxer_select="mp4_muxer"
3006 dash_demuxer_deps="libxml2"
3007 dirac_demuxer_select="dirac_parser"
3008 dts_demuxer_select="dca_parser"
3009 dtshd_demuxer_select="dca_parser"
3010 dv_demuxer_select="dvprofile"
3011 dv_muxer_select="dvprofile"
3012 dxa_demuxer_select="riffdec"
3013 eac3_demuxer_select="ac3_parser"
3014 f4v_muxer_select="mov_muxer"
3015 fifo_muxer_deps="threads"
3016 flac_demuxer_select="flac_parser"
3017 hds_muxer_select="flv_muxer"
3018 hls_muxer_select="mpegts_muxer"
3019 image2_alias_pix_demuxer_select="image2_demuxer"
3020 image2_brender_pix_demuxer_select="image2_demuxer"
3021 ipod_muxer_select="mov_muxer"
3022 ismv_muxer_select="mov_muxer"
3023 matroska_audio_muxer_select="matroska_muxer"
3024 matroska_demuxer_select="iso_media riffdec"
3025 matroska_demuxer_suggest="bzlib lzo zlib"
3026 matroska_muxer_select="iso_media riffenc"
3027 mmf_muxer_select="riffenc"
3028 mov_demuxer_select="iso_media riffdec"
3029 mov_demuxer_suggest="zlib"
3030 mov_muxer_select="iso_media riffenc rtpenc_chain"
3031 mp3_demuxer_select="mpegaudio_parser"
3032 mp3_muxer_select="mpegaudioheader"
3033 mp4_muxer_select="mov_muxer"
3034 mpegts_demuxer_select="iso_media"
3035 mpegts_muxer_select="adts_muxer latm_muxer"
3036 mpegtsraw_demuxer_select="mpegts_demuxer"
3037 mxf_d10_muxer_select="mxf_muxer"
3038 mxf_opatom_muxer_select="mxf_muxer"
3039 nut_muxer_select="riffenc"
3040 nuv_demuxer_select="riffdec"
3041 oga_muxer_select="ogg_muxer"
3042 ogg_demuxer_select="dirac_parse"
3043 ogv_muxer_select="ogg_muxer"
3044 opus_muxer_select="ogg_muxer"
3045 psp_muxer_select="mov_muxer"
3046 rtp_demuxer_select="sdp_demuxer"
3047 rtp_muxer_select="golomb"
3048 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3049 rtsp_demuxer_select="http_protocol rtpdec"
3050 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3051 sap_demuxer_select="sdp_demuxer"
3052 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3053 sdp_demuxer_select="rtpdec"
3054 smoothstreaming_muxer_select="ismv_muxer"
3055 spdif_muxer_select="aac_parser"
3056 spx_muxer_select="ogg_muxer"
3057 swf_demuxer_suggest="zlib"
3058 tak_demuxer_select="tak_parser"
3059 tg2_muxer_select="mov_muxer"
3060 tgp_muxer_select="mov_muxer"
3061 vobsub_demuxer_select="mpegps_demuxer"
3062 w64_demuxer_select="wav_demuxer"
3063 w64_muxer_select="wav_muxer"
3064 wav_demuxer_select="riffdec"
3065 wav_muxer_select="riffenc"
3066 webm_muxer_select="iso_media riffenc"
3067 webm_dash_manifest_demuxer_select="matroska_demuxer"
3068 wtv_demuxer_select="mpegts_demuxer riffdec"
3069 wtv_muxer_select="mpegts_muxer riffenc"
3070 xmv_demuxer_select="riffdec"
3071 xwma_demuxer_select="riffdec"
3072
3073 # indevs / outdevs
3074 alsa_indev_deps="alsa"
3075 alsa_outdev_deps="alsa"
3076 avfoundation_indev_deps="avfoundation pthreads"
3077 avfoundation_indev_extralibs="-framework Foundation -framework CoreVideo -framework CoreMedia"
3078 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3079 caca_outdev_deps="libcaca"
3080 decklink_indev_deps="decklink threads"
3081 decklink_indev_extralibs="-lstdc++"
3082 decklink_outdev_deps="decklink threads"
3083 decklink_outdev_extralibs="-lstdc++"
3084 libndi_newtek_indev_deps="libndi_newtek"
3085 libndi_newtek_indev_extralibs="-lndi"
3086 libndi_newtek_outdev_deps="libndi_newtek"
3087 libndi_newtek_outdev_extralibs="-lndi"
3088 dshow_indev_deps="IBaseFilter"
3089 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3090 fbdev_indev_deps="linux_fb_h"
3091 fbdev_outdev_deps="linux_fb_h"
3092 gdigrab_indev_deps="CreateDIBSection"
3093 gdigrab_indev_extralibs="-lgdi32"
3094 gdigrab_indev_select="bmp_decoder"
3095 iec61883_indev_deps="libiec61883"
3096 jack_indev_deps="jack"
3097 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3098 kmsgrab_indev_deps="libdrm"
3099 lavfi_indev_deps="avfilter"
3100 libcdio_indev_deps="libcdio"
3101 libdc1394_indev_deps="libdc1394"
3102 libv4l2_indev_deps="libv4l2"
3103 openal_indev_deps="openal"
3104 opengl_outdev_deps="opengl"
3105 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3106 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3107 pulse_indev_deps="libpulse"
3108 pulse_outdev_deps="libpulse"
3109 sdl2_outdev_deps="sdl2"
3110 sndio_indev_deps="sndio"
3111 sndio_outdev_deps="sndio"
3112 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3113 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3114 vfwcap_indev_deps="vfw32 vfwcap_defines"
3115 xcbgrab_indev_deps="libxcb"
3116 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3117 xv_outdev_extralibs="-lXv -lX11 -lXext"
3118
3119 # protocols
3120 async_protocol_deps="threads"
3121 bluray_protocol_deps="libbluray"
3122 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3123 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3124 ffrtmpcrypt_protocol_select="tcp_protocol"
3125 ffrtmphttp_protocol_deps="!librtmp_protocol"
3126 ffrtmphttp_protocol_select="http_protocol"
3127 ftp_protocol_select="tcp_protocol"
3128 gopher_protocol_select="network"
3129 http_protocol_select="tcp_protocol"
3130 httpproxy_protocol_select="tcp_protocol"
3131 https_protocol_select="tls_protocol"
3132 icecast_protocol_select="http_protocol"
3133 librtmp_protocol_deps="librtmp"
3134 librtmpe_protocol_deps="librtmp"
3135 librtmps_protocol_deps="librtmp"
3136 librtmpt_protocol_deps="librtmp"
3137 librtmpte_protocol_deps="librtmp"
3138 libsmbclient_protocol_deps="libsmbclient gplv3"
3139 libssh_protocol_deps="libssh"
3140 mmsh_protocol_select="http_protocol"
3141 mmst_protocol_select="network"
3142 rtmp_protocol_deps="!librtmp_protocol"
3143 rtmp_protocol_select="tcp_protocol"
3144 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3145 rtmps_protocol_deps="!librtmp_protocol"
3146 rtmps_protocol_select="tls_protocol"
3147 rtmpt_protocol_select="ffrtmphttp_protocol"
3148 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3149 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3150 rtp_protocol_select="udp_protocol"
3151 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3152 sctp_protocol_select="network"
3153 srtp_protocol_select="rtp_protocol srtp"
3154 tcp_protocol_select="network"
3155 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3156 tls_gnutls_protocol_select="tcp_protocol"
3157 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3158 tls_openssl_protocol_select="tcp_protocol"
3159 tls_schannel_protocol_deps="schannel"
3160 tls_schannel_protocol_select="tcp_protocol"
3161 tls_securetransport_protocol_deps="securetransport"
3162 tls_securetransport_protocol_select="tcp_protocol"
3163 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3164 udp_protocol_select="network"
3165 udplite_protocol_select="network"
3166 unix_protocol_deps="sys_un_h"
3167 unix_protocol_select="network"
3168
3169 # filters
3170 afftfilt_filter_deps="avcodec"
3171 afftfilt_filter_select="fft"
3172 afir_filter_deps="avcodec"
3173 afir_filter_select="fft"
3174 amovie_filter_deps="avcodec avformat"
3175 aresample_filter_deps="swresample"
3176 ass_filter_deps="libass"
3177 atempo_filter_deps="avcodec"
3178 atempo_filter_select="rdft"
3179 azmq_filter_deps="libzmq"
3180 blackframe_filter_deps="gpl"
3181 boxblur_filter_deps="gpl"
3182 bs2b_filter_deps="libbs2b"
3183 colormatrix_filter_deps="gpl"
3184 coreimage_filter_deps="coreimage appkit"
3185 coreimage_filter_extralibs="-framework OpenGL"
3186 coreimagesrc_filter_deps="coreimage appkit"
3187 coreimagesrc_filter_extralibs="-framework OpenGL"
3188 cover_rect_filter_deps="avcodec avformat gpl"
3189 cropdetect_filter_deps="gpl"
3190 deinterlace_qsv_filter_deps="libmfx"
3191 deinterlace_vaapi_filter_deps="vaapi"
3192 delogo_filter_deps="gpl"
3193 deshake_filter_select="pixelutils"
3194 drawtext_filter_deps="libfreetype"
3195 elbg_filter_deps="avcodec"
3196 eq_filter_deps="gpl"
3197 fftfilt_filter_deps="avcodec"
3198 fftfilt_filter_select="rdft"
3199 find_rect_filter_deps="avcodec avformat gpl"
3200 firequalizer_filter_deps="avcodec"
3201 firequalizer_filter_select="rdft"
3202 flite_filter_deps="libflite"
3203 framerate_filter_select="pixelutils"
3204 frei0r_filter_deps="frei0r dlopen"
3205 frei0r_src_filter_deps="frei0r dlopen"
3206 fspp_filter_deps="gpl"
3207 geq_filter_deps="gpl"
3208 histeq_filter_deps="gpl"
3209 hqdn3d_filter_deps="gpl"
3210 interlace_filter_deps="gpl"
3211 kerndeint_filter_deps="gpl"
3212 ladspa_filter_deps="ladspa dlopen"
3213 mcdeint_filter_deps="avcodec gpl"
3214 movie_filter_deps="avcodec avformat"
3215 mpdecimate_filter_deps="gpl"
3216 mpdecimate_filter_select="pixelutils"
3217 mptestsrc_filter_deps="gpl"
3218 negate_filter_deps="lut_filter"
3219 nnedi_filter_deps="gpl"
3220 ocr_filter_deps="libtesseract"
3221 ocv_filter_deps="libopencv"
3222 owdenoise_filter_deps="gpl"
3223 pan_filter_deps="swresample"
3224 perspective_filter_deps="gpl"
3225 phase_filter_deps="gpl"
3226 pp7_filter_deps="gpl"
3227 pp_filter_deps="gpl postproc"
3228 pullup_filter_deps="gpl"
3229 removelogo_filter_deps="avcodec avformat swscale"
3230 repeatfields_filter_deps="gpl"
3231 resample_filter_deps="avresample"
3232 rubberband_filter_deps="librubberband"
3233 sab_filter_deps="gpl swscale"
3234 scale2ref_filter_deps="swscale"
3235 scale_filter_deps="swscale"
3236 scale_qsv_filter_deps="libmfx"
3237 select_filter_select="pixelutils"
3238 showcqt_filter_deps="avcodec avformat swscale"
3239 showcqt_filter_select="fft"
3240 showfreqs_filter_deps="avcodec"
3241 showfreqs_filter_select="fft"
3242 showspectrum_filter_deps="avcodec"
3243 showspectrum_filter_select="fft"
3244 showspectrumpic_filter_deps="avcodec"
3245 showspectrumpic_filter_select="fft"
3246 signature_filter_deps="gpl avcodec avformat"
3247 smartblur_filter_deps="gpl swscale"
3248 sofalizer_filter_deps="libmysofa avcodec"
3249 sofalizer_filter_select="fft"
3250 spectrumsynth_filter_deps="avcodec"
3251 spectrumsynth_filter_select="fft"
3252 spp_filter_deps="gpl avcodec"
3253 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3254 stereo3d_filter_deps="gpl"
3255 subtitles_filter_deps="avformat avcodec libass"
3256 super2xsai_filter_deps="gpl"
3257 pixfmts_super2xsai_test_deps="super2xsai_filter"
3258 tinterlace_filter_deps="gpl"
3259 tinterlace_merge_test_deps="tinterlace_filter"
3260 tinterlace_pad_test_deps="tinterlace_filter"
3261 tonemap_filter_deps="const_nan"
3262 uspp_filter_deps="gpl avcodec"
3263 vaguedenoiser_filter_deps="gpl"
3264 vidstabdetect_filter_deps="libvidstab"
3265 vidstabtransform_filter_deps="libvidstab"
3266 libvmaf_filter_deps="libvmaf"
3267 zmq_filter_deps="libzmq"
3268 zoompan_filter_deps="swscale"
3269 zscale_filter_deps="libzimg const_nan"
3270 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3271
3272 # examples
3273 avio_dir_cmd_deps="avformat avutil"
3274 avio_reading_deps="avformat avcodec avutil"
3275 decode_audio_example_deps="avcodec avutil"
3276 decode_video_example_deps="avcodec avutil"
3277 demuxing_decoding_example_deps="avcodec avformat avutil"
3278 encode_audio_example_deps="avcodec avutil"
3279 encode_video_example_deps="avcodec avutil"
3280 extract_mvs_example_deps="avcodec avformat avutil"
3281 filter_audio_example_deps="avfilter avutil"
3282 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3283 filtering_video_example_deps="avfilter avcodec avformat avutil"
3284 http_multiclient_example_deps="avformat avutil fork"
3285 hw_decode_example_deps="avcodec avformat avutil"
3286 metadata_example_deps="avformat avutil"
3287 muxing_example_deps="avcodec avformat avutil swscale"
3288 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3289 remuxing_example_deps="avcodec avformat avutil"
3290 resampling_audio_example_deps="avutil swresample"
3291 scaling_video_example_deps="avutil swscale"
3292 transcode_aac_example_deps="avcodec avformat swresample"
3293 transcoding_example_deps="avfilter avcodec avformat avutil"
3294
3295 # libraries, in linking order
3296 avcodec_deps="avutil"
3297 avcodec_select="null_bsf"
3298 avdevice_deps="avformat avcodec avutil"
3299 avfilter_deps="avutil"
3300 avformat_deps="avcodec avutil"
3301 avformat_suggest="network"
3302 avresample_deps="avutil"
3303 postproc_deps="avutil gpl"
3304 swresample_deps="avutil"
3305 swscale_deps="avutil"
3306
3307 # programs
3308 ffmpeg_deps="avcodec avfilter avformat swresample"
3309 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3310                null_filter
3311                trim_filter"
3312 ffplay_deps="avcodec avformat swscale swresample sdl2"
3313 ffplay_extralibs='$sdl2_extralibs'
3314 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3315 ffprobe_deps="avcodec avformat"
3316 ffserver_deps="avformat fork sarestart"
3317 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3318
3319 # documentation
3320 podpages_deps="perl"
3321 manpages_deps="perl pod2man"
3322 htmlpages_deps="perl"
3323 htmlpages_deps_any="makeinfo_html texi2html"
3324 txtpages_deps="perl makeinfo"
3325 doc_deps_any="manpages htmlpages podpages txtpages"
3326
3327 # default parameters
3328
3329 logfile="ffbuild/config.log"
3330
3331 # installation paths
3332 prefix_default="/usr/local"
3333 bindir_default='${prefix}/bin'
3334 datadir_default='${prefix}/share/ffmpeg'
3335 docdir_default='${prefix}/share/doc/ffmpeg'
3336 incdir_default='${prefix}/include'
3337 libdir_default='${prefix}/lib'
3338 mandir_default='${prefix}/share/man'
3339
3340 # toolchain
3341 ar_default="ar"
3342 cc_default="gcc"
3343 cxx_default="g++"
3344 host_cc_default="gcc"
3345 doxygen_default="doxygen"
3346 install="install"
3347 ln_s_default="ln -s -f"
3348 nm_default="nm -g"
3349 pkg_config_default=pkg-config
3350 ranlib_default="ranlib"
3351 strip_default="strip"
3352 version_script='--version-script'
3353 x86asmexe_default="nasm"
3354 windres_default="windres"
3355 nvcc_default="nvcc"
3356 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3357
3358 # OS
3359 target_os_default=$(tolower $(uname -s))
3360 host_os=$target_os_default
3361
3362 # machine
3363 if test "$target_os_default" = aix; then
3364     arch_default=$(uname -p)
3365     strip_default="strip -X32_64"
3366 else
3367     arch_default=$(uname -m)
3368 fi
3369 cpu="generic"
3370 intrinsics="none"
3371
3372 # configurable options
3373 enable $PROGRAM_LIST
3374 enable $DOCUMENT_LIST
3375 enable $EXAMPLE_LIST
3376 enable $(filter_out avresample $LIBRARY_LIST)
3377 enable stripping
3378
3379 enable asm
3380 enable debug
3381 enable doc
3382 enable faan faandct faanidct
3383 enable optimizations
3384 enable runtime_cpudetect
3385 enable safe_bitstream_reader
3386 enable static
3387 enable swscale_alpha
3388 enable valgrind_backtrace
3389
3390 sws_max_filter_size_default=256
3391 set_default sws_max_filter_size
3392
3393 # build settings
3394 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3395 LIBPREF="lib"
3396 LIBSUF=".a"
3397 FULLNAME='$(NAME)$(BUILDSUF)'
3398 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3399 SLIBPREF="lib"
3400 SLIBSUF=".so"
3401 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3402 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3403 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3404 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3405 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3406 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3407 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3408
3409 asflags_filter=echo
3410 cflags_filter=echo
3411 ldflags_filter=echo
3412
3413 AS_C='-c'
3414 AS_O='-o $@'
3415 CC_C='-c'
3416 CC_E='-E -o $@'
3417 CC_O='-o $@'
3418 CXX_C='-c'
3419 CXX_O='-o $@'
3420 OBJCC_C='-c'
3421 OBJCC_E='-E -o $@'
3422 OBJCC_O='-o $@'
3423 X86ASM_O='-o $@'
3424 LD_O='-o $@'
3425 LD_LIB='-l%'
3426 LD_PATH='-L'
3427 HOSTCC_C='-c'
3428 HOSTCC_E='-E -o $@'
3429 HOSTCC_O='-o $@'
3430 HOSTLD_O='-o $@'
3431 NVCC_C='-c'
3432 NVCC_O='-o $@'
3433
3434 host_extralibs='-lm'
3435 host_cflags_filter=echo
3436 host_ldflags_filter=echo
3437
3438 target_path='$(CURDIR)'
3439
3440 # since the object filename is not given with the -MM flag, the compiler
3441 # is only able to print the basename, and we must add the path ourselves
3442 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3443 DEPFLAGS='-MM'
3444
3445 mkdir -p ffbuild
3446
3447 # find source path
3448 if test -f configure; then
3449     source_path=.
3450 else
3451     source_path=$(cd $(dirname "$0"); pwd)
3452     case "$source_path" in
3453         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3454     esac
3455     test -e "$source_path/config.h" &&
3456         die "Out of tree builds are impossible with config.h in source dir."
3457 fi
3458
3459 for v in "$@"; do
3460     r=${v#*=}
3461     l=${v%"$r"}
3462     r=$(sh_quote "$r")
3463     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3464 done
3465
3466 find_things(){
3467     thing=$1
3468     pattern=$2
3469     file=$source_path/$3
3470     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3471 }
3472
3473 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3474 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3475 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3476 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3477 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3478 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3479 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3480 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3481 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3482
3483 find_things_extern(){
3484     thing=$1
3485     pattern=$2
3486     file=$source_path/$3
3487     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3488 }
3489
3490 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3491 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3492
3493 ALL_COMPONENTS="
3494     $BSF_LIST
3495     $DECODER_LIST
3496     $DEMUXER_LIST
3497     $ENCODER_LIST
3498     $FILTER_LIST
3499     $HWACCEL_LIST
3500     $INDEV_LIST
3501     $MUXER_LIST
3502     $OUTDEV_LIST
3503     $PARSER_LIST
3504     $PROTOCOL_LIST
3505 "
3506
3507 for n in $COMPONENT_LIST; do
3508     v=$(toupper ${n%s})_LIST
3509     eval enable \$$v
3510     eval ${n}_if_any="\$$v"
3511 done
3512
3513 enable $ARCH_EXT_LIST
3514
3515 die_unknown(){
3516     echo "Unknown option \"$1\"."
3517     echo "See $0 --help for available options."
3518     exit 1
3519 }
3520
3521 print_in_columns() {
3522     cols=$(expr $ncols / 24)
3523     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3524 }
3525
3526 show_list() {
3527     suffix=_$1
3528     shift
3529     echo $* | sed s/$suffix//g | print_in_columns
3530     exit 0
3531 }
3532
3533 rand_list(){
3534     IFS=', '
3535     set -- $*
3536     unset IFS
3537     for thing; do
3538         comp=${thing%:*}
3539         prob=${thing#$comp}
3540         prob=${prob#:}
3541         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3542         echo "prob ${prob:-0.5}"
3543         printf '%s\n' $comp
3544     done
3545 }
3546
3547 do_random(){
3548     action=$1
3549     shift
3550     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3551     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3552 }
3553
3554 for opt do
3555     optval="${opt#*=}"
3556     case "$opt" in
3557         --extra-ldflags=*)
3558             add_ldflags $optval
3559         ;;
3560         --extra-ldexeflags=*)
3561             add_ldexeflags $optval
3562         ;;
3563         --extra-ldlibflags=*)
3564             add_ldlibflags $optval
3565         ;;
3566         --extra-libs=*)
3567             add_extralibs $optval
3568         ;;
3569         --disable-devices)
3570             disable $INDEV_LIST $OUTDEV_LIST
3571         ;;
3572         --enable-debug=*)
3573             debuglevel="$optval"
3574         ;;
3575         --disable-programs)
3576             disable $PROGRAM_LIST
3577         ;;
3578         --disable-everything)
3579             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3580         ;;
3581         --disable-all)
3582             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3583             disable $LIBRARY_LIST $PROGRAM_LIST doc
3584             enable avutil
3585         ;;
3586         --enable-random|--disable-random)
3587             action=${opt%%-random}
3588             do_random ${action#--} $COMPONENT_LIST
3589         ;;
3590         --enable-random=*|--disable-random=*)
3591             action=${opt%%-random=*}
3592             do_random ${action#--} $optval
3593         ;;
3594         --enable-sdl)
3595             enable sdl2
3596         ;;
3597         --enable-*=*|--disable-*=*)
3598             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3599             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3600             eval list=\$$(toupper $thing)_LIST
3601             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3602             list=$(filter "$name" $list)
3603             [ "$list" = "" ] && warn "Option $opt did not match anything"
3604             $action $list
3605         ;;
3606         --enable-yasm|--disable-yasm)
3607             warn "The ${opt} option is only provided for compatibility and will be\n"\
3608                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3609             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3610         ;;
3611         --yasmexe=*)
3612             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3613                  "removed in the future. Use --x86asmexe instead."
3614             x86asmexe="$optval"
3615         ;;
3616         --enable-?*|--disable-?*)
3617             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3618             if is_in $option $COMPONENT_LIST; then
3619                 test $action = disable && action=unset
3620                 eval $action \$$(toupper ${option%s})_LIST
3621             elif is_in $option $CMDLINE_SELECT; then
3622                 $action $option
3623             else
3624                 die_unknown $opt
3625             fi
3626         ;;
3627         --list-*)
3628             NAME="${opt#--list-}"
3629             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3630             NAME=${NAME%s}
3631             eval show_list $NAME \$$(toupper $NAME)_LIST
3632         ;;
3633         --help|-h) show_help
3634         ;;
3635         --quiet|-q) quiet=yes
3636         ;;
3637         --fatal-warnings) enable fatal_warnings
3638         ;;
3639         --libfuzzer=*)
3640             libfuzzer_path="$optval"
3641         ;;
3642         *)
3643             optname="${opt%%=*}"
3644             optname="${optname#--}"
3645             optname=$(echo "$optname" | sed 's/-/_/g')
3646             if is_in $optname $CMDLINE_SET; then
3647                 eval $optname='$optval'
3648             elif is_in $optname $CMDLINE_APPEND; then
3649                 append $optname "$optval"
3650             else
3651                 die_unknown $opt
3652             fi
3653         ;;
3654     esac
3655 done
3656
3657 for e in $env; do
3658     eval "export $e"
3659 done
3660
3661 if disabled autodetect; then
3662
3663     # Unless iconv is explicitely disabled by the user, we still want to probe
3664     # for the iconv from the libc.
3665     disabled iconv || enable libc_iconv
3666
3667     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3668     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3669 fi
3670 # Mark specifically enabled, but normally autodetected libraries as requested.
3671 for lib in $AUTODETECT_LIBS; do
3672     enabled $lib && request $lib
3673 done
3674 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3675 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3676 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3677
3678 disabled logging && logfile=/dev/null
3679
3680 die_license_disabled() {
3681     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3682 }
3683
3684 die_license_disabled_gpl() {
3685     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3686 }
3687
3688 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3689 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3690
3691 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3692 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3693
3694 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3695
3696 # Disable all the library-specific components if the library itself
3697 # is disabled, see AVCODEC_LIST and following _LIST variables.
3698
3699 disable_components(){
3700     disabled ${1} && disable $(
3701         eval components="\$$(toupper ${1})_COMPONENTS"
3702         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3703     )
3704 }
3705
3706 map 'disable_components $v' $LIBRARY_LIST
3707
3708 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3709 set >> $logfile
3710
3711 test -n "$valgrind" && toolchain="valgrind-memcheck"
3712
3713 enabled ossfuzz && {
3714     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3715     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3716 }
3717
3718 case "$toolchain" in
3719     *-asan)
3720         cc_default="${toolchain%-asan}"
3721         add_cflags  -fsanitize=address
3722         add_ldflags -fsanitize=address
3723     ;;
3724     *-msan)
3725         cc_default="${toolchain%-msan}"
3726         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3727         add_ldflags -fsanitize=memory
3728     ;;
3729     *-tsan)
3730         cc_default="${toolchain%-tsan}"
3731         add_cflags  -fsanitize=thread -fPIE
3732         add_ldflags -fsanitize=thread -pie
3733         case "$toolchain" in
3734             gcc-tsan)
3735                 add_cflags  -fPIC
3736                 add_ldflags -fPIC
3737                 ;;
3738         esac
3739     ;;
3740     *-usan)
3741         cc_default="${toolchain%-usan}"
3742         add_cflags  -fsanitize=undefined
3743         add_ldflags -fsanitize=undefined
3744     ;;
3745     valgrind-*)
3746         target_exec_default="valgrind"
3747         case "$toolchain" in
3748             valgrind-massif)
3749                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3750                 ;;
3751             valgrind-memcheck)
3752                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3753                 ;;
3754         esac
3755     ;;
3756     msvc)
3757         # Check whether the current MSVC version needs the C99 converter.
3758         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3759         # support enough of C99 to build ffmpeg. Default to the new
3760         # behaviour if the regexp was unable to match anything, since this
3761         # successfully parses the version number of existing supported
3762         # versions that require the converter (MSVC 2010 and 2012).
3763         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3764         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3765             cc_default="cl"
3766             cxx_default="cl"
3767         else
3768             cc_default="c99wrap cl"
3769             cxx_default="c99wrap cl"
3770         fi
3771         ld_default="$source_path/compat/windows/mslink"
3772         nm_default="dumpbin -symbols"
3773         ar_default="lib"
3774         case "$arch" in
3775         arm*)
3776             as_default="armasm"
3777             ;;
3778         esac
3779         target_os_default="win32"
3780         # Use a relative path for TMPDIR. This makes sure all the
3781         # ffconf temp files are written with a relative path, avoiding
3782         # issues with msys/win32 path conversion for MSVC parameters
3783         # such as -Fo<file> or -out:<file>.
3784         TMPDIR=.
3785     ;;
3786     icl)
3787         cc_default="icl"
3788         ld_default="xilink"
3789         nm_default="dumpbin -symbols"
3790         ar_default="xilib"
3791         target_os_default="win32"
3792         TMPDIR=.
3793     ;;
3794     gcov)
3795         add_cflags  -fprofile-arcs -ftest-coverage
3796         add_ldflags -fprofile-arcs -ftest-coverage
3797     ;;
3798     llvm-cov)
3799         add_cflags -fprofile-arcs -ftest-coverage
3800         add_ldflags --coverage
3801     ;;
3802     hardened)
3803         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3804         add_cflags   -fno-strict-overflow -fstack-protector-all
3805         add_ldflags  -Wl,-z,relro -Wl,-z,now
3806         add_cflags   -fPIE
3807         add_ldexeflags -fPIE -pie
3808     ;;
3809     ?*)
3810         die "Unknown toolchain $toolchain"
3811     ;;
3812 esac
3813
3814 test -n "$cross_prefix" && enable cross_compile
3815
3816 if enabled cross_compile; then
3817     test -n "$arch" && test -n "$target_os" ||
3818         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3819 fi
3820
3821 ar_default="${cross_prefix}${ar_default}"
3822 cc_default="${cross_prefix}${cc_default}"
3823 cxx_default="${cross_prefix}${cxx_default}"
3824 nm_default="${cross_prefix}${nm_default}"
3825 pkg_config_default="${cross_prefix}${pkg_config_default}"
3826 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3827     ranlib_default="${cross_prefix}${ranlib_default} -D"
3828 else
3829     ranlib_default="${cross_prefix}${ranlib_default}"
3830 fi
3831 strip_default="${cross_prefix}${strip_default}"
3832 windres_default="${cross_prefix}${windres_default}"
3833
3834 sysinclude_default="${sysroot}/usr/include"
3835
3836 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3837     target_exec target_os x86asmexe nvcc
3838 enabled cross_compile || host_cc_default=$cc
3839 set_default host_cc
3840
3841 pkg_config_fail_message=""
3842 if ! $pkg_config --version >/dev/null 2>&1; then
3843     warn "$pkg_config not found, library detection may fail."
3844     pkg_config=false
3845 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3846     pkg_config_fail_message="
3847 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3848 fi
3849
3850 if test $doxygen != $doxygen_default && \
3851   ! $doxygen --version >/dev/null 2>&1; then
3852     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3853 fi
3854
3855 exesuf() {
3856     case $1 in
3857         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3858     esac
3859 }
3860
3861 EXESUF=$(exesuf $target_os)
3862 HOSTEXESUF=$(exesuf $host_os)
3863
3864 # set temporary file name
3865 : ${TMPDIR:=$TEMPDIR}
3866 : ${TMPDIR:=$TMP}
3867 : ${TMPDIR:=/tmp}
3868
3869 if [ -n "$tempprefix" ] ; then
3870     mktemp(){
3871         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3872         echo "$tmpname"
3873         mkdir "$tmpname"
3874     }
3875 elif ! check_cmd mktemp -u XXXXXX; then
3876     # simple replacement for missing mktemp
3877     # NOT SAFE FOR GENERAL USE
3878     mktemp(){
3879         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3880         echo "$tmpname"
3881         mkdir "$tmpname"
3882     }
3883 fi
3884
3885 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3886     die "Unable to create temporary directory in $TMPDIR."
3887
3888 tmpfile(){
3889     tmp="${FFTMPDIR}/test"$2
3890     (set -C; exec > $tmp) 2> /dev/null ||
3891         die "Unable to create temporary file in $FFTMPDIR."
3892     eval $1=$tmp
3893 }
3894
3895 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3896 trap 'exit 2' INT
3897
3898 tmpfile TMPASM .asm
3899 tmpfile TMPC   .c
3900 tmpfile TMPCPP .cpp
3901 tmpfile TMPE   $EXESUF
3902 tmpfile TMPH   .h
3903 tmpfile TMPM   .m
3904 tmpfile TMPO   .o
3905 tmpfile TMPS   .S
3906 tmpfile TMPSH  .sh
3907 tmpfile TMPV   .ver
3908
3909 unset -f mktemp
3910
3911 chmod +x $TMPE
3912
3913 # make sure we can execute files in $TMPDIR
3914 cat > $TMPSH 2>> $logfile <<EOF
3915 #! /bin/sh
3916 EOF
3917 chmod +x $TMPSH >> $logfile 2>&1
3918 if ! $TMPSH >> $logfile 2>&1; then
3919     cat <<EOF
3920 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3921 variable to another directory and make sure that it is not mounted noexec.
3922 EOF
3923     die "Sanity test failed."
3924 fi
3925
3926 armasm_flags(){
3927     for flag; do
3928         case $flag in
3929             # Filter out MSVC cl.exe options from cflags that shouldn't
3930             # be passed to gas-preprocessor
3931             -M[TD]*)                                            ;;
3932             *)                  echo $flag                      ;;
3933         esac
3934    done
3935 }
3936
3937 ccc_flags(){
3938     for flag; do
3939         case $flag in
3940             -std=c99)           echo -c99                       ;;
3941             -mcpu=*)            echo -arch ${flag#*=}           ;;
3942             -mieee)             echo -ieee                      ;;
3943             -O*|-fast)          echo $flag                      ;;
3944             -fno-math-errno)    echo -assume nomath_errno       ;;
3945             -g)                 echo -g3                        ;;
3946             -Wall)              echo -msg_enable level2         ;;
3947             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3948             -Wl,*)              echo $flag                      ;;
3949             -f*|-W*)                                            ;;
3950             *)                  echo $flag                      ;;
3951         esac
3952    done
3953 }
3954
3955 cparser_flags(){
3956     for flag; do
3957         case $flag in
3958             -Wno-switch)             echo -Wno-switch-enum ;;
3959             -Wno-format-zero-length) ;;
3960             -Wdisabled-optimization) ;;
3961             -Wno-pointer-sign)       echo -Wno-other ;;
3962             *)                       echo $flag ;;
3963         esac
3964     done
3965 }
3966
3967 msvc_common_flags(){
3968     for flag; do
3969         case $flag in
3970             # In addition to specifying certain flags under the compiler
3971             # specific filters, they must be specified here as well or else the
3972             # generic catch all at the bottom will print the original flag.
3973             -Wall)                ;;
3974             -Wextra)              ;;
3975             -std=c99)             ;;
3976             # Common flags
3977             -fomit-frame-pointer) ;;
3978             -g)                   echo -Z7 ;;
3979             -fno-math-errno)      ;;
3980             -fno-common)          ;;
3981             -fno-signed-zeros)    ;;
3982             -fPIC)                ;;
3983             -mthumb)              ;;
3984             -march=*)             ;;
3985             -lz)                  echo zlib.lib ;;
3986             -lx264)               echo libx264.lib ;;
3987             -lstdc++)             ;;
3988             -l*)                  echo ${flag#-l}.lib ;;
3989             -LARGEADDRESSAWARE)   echo $flag ;;
3990             -L*)                  echo -libpath:${flag#-L} ;;
3991             *)                    echo $flag ;;
3992         esac
3993     done
3994 }
3995
3996 msvc_flags(){
3997     msvc_common_flags "$@"
3998     for flag; do
3999         case $flag in
4000             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4001                                        -wd4554 ;;
4002             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4003                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4004                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4005                                        -wd4307 \
4006                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4007         esac
4008     done
4009 }
4010
4011 icl_flags(){
4012     msvc_common_flags "$@"
4013     for flag; do
4014         case $flag in
4015             # Despite what Intel's documentation says -Wall, which is supported
4016             # on Windows, does enable remarks so disable them here.
4017             -Wall)                echo $flag -Qdiag-disable:remark ;;
4018             -std=c99)             echo -Qstd=c99 ;;
4019             -flto)                echo -ipo ;;
4020         esac
4021     done
4022 }
4023
4024 icc_flags(){
4025     for flag; do
4026         case $flag in
4027             -flto)                echo -ipo ;;
4028             *)                    echo $flag ;;
4029         esac
4030     done
4031 }
4032
4033 pgi_flags(){
4034     for flag; do
4035         case $flag in
4036             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4037             -fomit-frame-pointer) echo -Mnoframe ;;
4038             -g)                   echo -gopt ;;
4039             *)                    echo $flag ;;
4040         esac
4041     done
4042 }
4043
4044 suncc_flags(){
4045     for flag; do
4046         case $flag in
4047             -march=*|-mcpu=*)
4048                 case "${flag#*=}" in
4049                     native)                   echo -xtarget=native       ;;
4050                     v9|niagara)               echo -xarch=sparc          ;;
4051                     ultrasparc)               echo -xarch=sparcvis       ;;
4052                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4053                     i586|pentium)             echo -xchip=pentium        ;;
4054                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4055                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4056                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4057                     pentium4*)          echo -xtarget=pentium4           ;;
4058                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4059                     *-sse3)             echo -xarch=sse3                 ;;
4060                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4061                     bonnell)                   echo -xarch=ssse3         ;;
4062                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4063                     westmere)                  echo -xtarget=westmere    ;;
4064                     silvermont)                echo -xarch=sse4_2        ;;
4065                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4066                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4067                                                echo -xarch=avx           ;;
4068                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4069                     btver1)                    echo -xarch=amdsse4a      ;;
4070                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4071                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4072                     k8|opteron|athlon64|athlon-fx)
4073                                                echo -xarch=sse2a         ;;
4074                     athlon*)                   echo -xarch=pentium_proa  ;;
4075                 esac
4076                 ;;
4077             -std=c99)             echo -xc99              ;;
4078             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4079             -fPIC)                echo -KPIC -xcode=pic32 ;;
4080             -W*,*)                echo $flag              ;;
4081             -f*-*|-W*|-mimpure-text)                      ;;
4082             -shared)              echo -G                 ;;
4083             *)                    echo $flag              ;;
4084         esac
4085     done
4086 }
4087
4088 tms470_flags(){
4089     for flag; do
4090         case $flag in
4091             -march=*|-mcpu=*)
4092                 case "${flag#*=}" in
4093                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4094                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4095                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4096                     armv6*|arm11*)          echo -mv=6   ;;
4097                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4098                                             echo -mv=5e  ;;
4099                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4100                 esac
4101                 ;;
4102             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4103             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4104             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4105             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4106             -msoft-float)   echo --float_support=vfplib       ;;
4107             -O[0-3]|-mf=*)  echo $flag                        ;;
4108             -g)             echo -g -mn                       ;;
4109             -pds=*)         echo $flag                        ;;
4110             -D*|-I*)        echo $flag                        ;;
4111             --gcc|--abi=*)  echo $flag                        ;;
4112             -me)            echo $flag                        ;;
4113         esac
4114     done
4115 }
4116
4117 probe_cc(){
4118     pfx=$1
4119     _cc=$2
4120     first=$3
4121
4122     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4123     unset _ld_o _ldflags _ld_lib _ld_path
4124     unset _depflags _DEPCMD _DEPFLAGS
4125     _flags_filter=echo
4126
4127     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4128         true # no-op to avoid reading stdin in following checks
4129     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4130         _type=llvm_gcc
4131         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4132         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4133         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4134         _cflags_speed='-O3'
4135         _cflags_size='-Os'
4136     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4137         _type=gcc
4138         gcc_version=$($_cc --version | head -n1)
4139         gcc_basever=$($_cc -dumpversion)
4140         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4141         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4142         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4143         case $gcc_basever in
4144             2) ;;
4145             2.*) ;;
4146             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4147         esac
4148         if [ "$first" = true ]; then
4149             case $gcc_basever in
4150                 4.2*)
4151                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4152             esac
4153         fi
4154         _cflags_speed='-O3'
4155         _cflags_size='-Os'
4156     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4157         _type=icc
4158         _ident=$($_cc --version | head -n1)
4159         _depflags='-MMD'
4160         _cflags_speed='-O3'
4161         _cflags_size='-Os'
4162         _cflags_noopt='-O1'
4163         _flags_filter=icc_flags
4164     elif $_cc -v 2>&1 | grep -q xlc; then
4165         _type=xlc
4166         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4167         _cflags_speed='-O5'
4168         _cflags_size='-O5 -qcompact'
4169     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4170         _type=ccc
4171         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4172         _DEPFLAGS='-M'
4173         _cflags_speed='-fast'
4174         _cflags_size='-O1'
4175         _flags_filter=ccc_flags
4176     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4177         test -d "$sysroot" || die "No valid sysroot specified."
4178         _type=armcc
4179         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4180         armcc_conf="$PWD/armcc.conf"
4181         $_cc --arm_linux_configure                 \
4182              --arm_linux_config_file="$armcc_conf" \
4183              --configure_sysroot="$sysroot"        \
4184              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4185              die "Error creating armcc configuration file."
4186         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4187         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4188         as_default="${cross_prefix}gcc"
4189         _depflags='-MMD'
4190         _cflags_speed='-O3'
4191         _cflags_size='-Os'
4192     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4193         _type=tms470
4194         _ident=$($_cc -version | head -n1 | tr -s ' ')
4195         _flags='--gcc --abi=eabi -me'
4196         _cc_e='-ppl -fe=$@'
4197         _cc_o='-fe=$@'
4198         _depflags='-ppa -ppd=$(@:.o=.d)'
4199         _cflags_speed='-O3 -mf=5'
4200         _cflags_size='-O3 -mf=2'
4201         _flags_filter=tms470_flags
4202     elif $_cc -v 2>&1 | grep -q clang; then
4203         _type=clang
4204         _ident=$($_cc --version 2>/dev/null | head -n1)
4205         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4206         _cflags_speed='-O3'
4207         _cflags_size='-Oz'
4208     elif $_cc -V 2>&1 | grep -q Sun; then
4209         _type=suncc
4210         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4211         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4212         _DEPFLAGS='-xM1 -xc99'
4213         _ldflags='-std=c99'
4214         _cflags_speed='-O5'
4215         _cflags_size='-O5 -xspace'
4216         _flags_filter=suncc_flags
4217     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4218         _type=pathscale
4219         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4220         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4221         _cflags_speed='-O2'
4222         _cflags_size='-Os'
4223         _flags_filter='filter_out -Wdisabled-optimization'
4224     elif $_cc -v 2>&1 | grep -q Open64; then
4225         _type=open64
4226         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4227         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4228         _cflags_speed='-O2'
4229         _cflags_size='-Os'
4230         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4231     elif $_cc -V 2>&1 | grep -q Portland; then
4232         _type=pgi
4233         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4234         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4235         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4236         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4237         _cflags_noopt="-O"
4238         _flags_filter=pgi_flags
4239     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4240         _type=armasm
4241         _ident=$($_cc | head -n1)
4242         # 4509: "This form of conditional instruction is deprecated"
4243         _flags="-nologo -ignore 4509"
4244         _flags_filter=armasm_flags
4245     elif $_cc 2>&1 | grep -q Intel; then
4246         _type=icl
4247         _ident=$($_cc 2>&1 | head -n1)
4248         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4249         # Not only is O3 broken on 13.x+ but it is slower on all previous
4250         # versions (tested) as well.
4251         _cflags_speed="-O2"
4252         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4253         if $_cc 2>&1 | grep -q Linker; then
4254             _ld_o='-out:$@'
4255         else
4256             _ld_o='-Fe$@'
4257         fi
4258         _cc_o='-Fo$@'
4259         _cc_e='-P'
4260         _flags_filter=icl_flags
4261         _ld_lib='lib%.a'
4262         _ld_path='-libpath:'
4263         # -Qdiag-error to make icl error when seeing certain unknown arguments
4264         _flags='-nologo -Qdiag-error:4044,10157'
4265         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4266         # with MSVC which enables it by default.
4267         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4268         disable stripping
4269     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4270         # lld can emulate multiple different linkers; in ms link.exe mode,
4271         # the -? parameter gives the help output which contains an identifyable
4272         # string, while it gives an error in other modes.
4273         _type=lld-link
4274         # The link.exe mode doesn't have a switch for getting the version,
4275         # but we can force it back to gnu mode and get the version from there.
4276         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4277         _ld_o='-out:$@'
4278         _flags_filter=msvc_flags
4279         _ld_lib='lib%.a'
4280         _ld_path='-libpath:'
4281     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4282         _type=msvc
4283         _ident=$($_cc 2>&1 | head -n1)
4284         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4285         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4286         _cflags_speed="-O2"
4287         _cflags_size="-O1"
4288         _cflags_noopt="-O1"
4289         if $_cc -nologo- 2>&1 | grep -q Linker; then
4290             _ld_o='-out:$@'
4291         else
4292             _ld_o='-Fe$@'
4293         fi
4294         _cc_o='-Fo$@'
4295         _cc_e='-P -Fi$@'
4296         _flags_filter=msvc_flags
4297         _ld_lib='lib%.a'
4298         _ld_path='-libpath:'
4299         _flags='-nologo'
4300         disable stripping
4301     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4302         _type=cparser
4303         _ident=$($_cc --version | head -n1)
4304         _depflags='-MMD'
4305         _cflags_speed='-O4'
4306         _cflags_size='-O2'
4307         _flags_filter=cparser_flags
4308     fi
4309
4310     eval ${pfx}_type=\$_type
4311     eval ${pfx}_ident=\$_ident
4312 }
4313
4314 set_ccvars(){
4315     eval ${1}_C=\${_cc_c-\${${1}_C}}
4316     eval ${1}_E=\${_cc_e-\${${1}_E}}
4317     eval ${1}_O=\${_cc_o-\${${1}_O}}
4318
4319     if [ -n "$_depflags" ]; then
4320         eval ${1}_DEPFLAGS=\$_depflags
4321     else
4322         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4323         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4324         eval DEP${1}FLAGS=\$_flags
4325     fi
4326 }
4327
4328 probe_cc cc "$cc" "true"
4329 cflags_filter=$_flags_filter
4330 cflags_speed=$_cflags_speed
4331 cflags_size=$_cflags_size
4332 cflags_noopt=$_cflags_noopt
4333 add_cflags $_flags $_cflags
4334 cc_ldflags=$_ldflags
4335 set_ccvars CC
4336 set_ccvars CXX
4337
4338 probe_cc hostcc "$host_cc"
4339 host_cflags_filter=$_flags_filter
4340 host_cflags_speed=$_cflags_speed
4341 add_host_cflags  $_flags $_cflags
4342 set_ccvars HOSTCC
4343
4344 test -n "$cc_type" && enable $cc_type ||
4345     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4346
4347 : ${as_default:=$cc}
4348 : ${objcc_default:=$cc}
4349 : ${dep_cc_default:=$cc}
4350 : ${ld_default:=$cc}
4351 : ${host_ld_default:=$host_cc}
4352 set_default ar as objcc dep_cc ld ln_s host_ld windres
4353
4354 probe_cc as "$as"
4355 asflags_filter=$_flags_filter
4356 add_asflags $_flags $_cflags
4357 set_ccvars AS
4358
4359 probe_cc objcc "$objcc"
4360 objcflags_filter=$_flags_filter
4361 add_objcflags $_flags $_cflags
4362 set_ccvars OBJC
4363
4364 probe_cc ld "$ld"
4365 ldflags_filter=$_flags_filter
4366 add_ldflags $_flags $_ldflags
4367 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4368 LD_O=${_ld_o-$LD_O}
4369 LD_LIB=${_ld_lib-$LD_LIB}
4370 LD_PATH=${_ld_path-$LD_PATH}
4371
4372 probe_cc hostld "$host_ld"
4373 host_ldflags_filter=$_flags_filter
4374 add_host_ldflags $_flags $_ldflags
4375 HOSTLD_O=${_ld_o-$HOSTLD_O}
4376
4377 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4378     probe_cc depcc "$dep_cc"
4379     CCDEP=${_DEPCMD:-$DEPCMD}
4380     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4381     DEPCCFLAGS=$_flags
4382 fi
4383
4384 if $ar 2>&1 | grep -q Microsoft; then
4385     arflags="-nologo"
4386     ar_o='-out:$@'
4387 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4388     arflags="rq"
4389     ar_o='$@'
4390 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4391     arflags='-Xany -r -c'
4392     ar_o='$@'
4393 elif $ar 2>&1 | grep -q "\[D\] "; then
4394     arflags="rcD"
4395     ar_o='$@'
4396 else
4397     arflags="rc"
4398     ar_o='$@'
4399 fi
4400
4401 add_cflags $extra_cflags
4402 add_cxxflags $extra_cxxflags
4403 add_objcflags $extra_objcflags
4404 add_asflags $extra_cflags
4405
4406 if test -n "$sysroot"; then
4407     case "$cc_type" in
4408         gcc|llvm_gcc|clang)
4409             add_cppflags --sysroot="$sysroot"
4410             add_ldflags --sysroot="$sysroot"
4411 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4412             add_cppflags -isysroot "$sysroot"
4413             add_ldflags -isysroot "$sysroot"
4414         ;;
4415         tms470)
4416             add_cppflags -I"$sysinclude"
4417             add_ldflags  --sysroot="$sysroot"
4418         ;;
4419     esac
4420 fi
4421
4422 if test "$cpu" = host; then
4423     enabled cross_compile &&
4424         die "--cpu=host makes no sense when cross-compiling."
4425
4426     case "$cc_type" in
4427         gcc|llvm_gcc)
4428             check_native(){
4429                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4430                 sed -n "/cc1.*$1=/{
4431                             s/.*$1=\\([^ ]*\\).*/\\1/
4432                             p
4433                             q
4434                         }" $TMPE
4435             }
4436             cpu=$(check_native -march || check_native -mcpu)
4437         ;;
4438         clang)
4439             check_native(){
4440                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4441                 sed -n "/cc1.*-target-cpu /{
4442                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4443                             p
4444                             q
4445                         }" $TMPE
4446             }
4447             cpu=$(check_native -march)
4448         ;;
4449     esac
4450
4451     test "${cpu:-host}" = host &&
4452         die "--cpu=host not supported with compiler $cc"
4453 fi
4454
4455 # Deal with common $arch aliases
4456 case "$arch" in
4457     aarch64|arm64)
4458         arch="aarch64"
4459     ;;
4460     arm*|iPad*|iPhone*)
4461         arch="arm"
4462     ;;
4463     mips*|IP*)
4464         case "$arch" in
4465         *el)
4466             add_cppflags -EL
4467             add_ldflags -EL
4468         ;;
4469         *eb)
4470             add_cppflags -EB
4471             add_ldflags -EB
4472         ;;
4473         esac
4474         arch="mips"
4475     ;;
4476     parisc*|hppa*)
4477         arch="parisc"
4478     ;;
4479     "Power Macintosh"|ppc*|powerpc*)
4480         arch="ppc"
4481     ;;
4482     s390|s390x)
4483         arch="s390"
4484     ;;
4485     sh4|sh)
4486         arch="sh4"
4487     ;;
4488     sun4*|sparc*)
4489         arch="sparc"
4490     ;;
4491     tilegx|tile-gx)
4492         arch="tilegx"
4493     ;;
4494     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4495         arch="x86"
4496     ;;
4497 esac
4498
4499 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4500 enable $arch
4501
4502 # Add processor-specific flags
4503 if enabled aarch64; then
4504
4505     case $cpu in
4506         armv*)
4507             cpuflags="-march=$cpu"
4508         ;;
4509         *)
4510             cpuflags="-mcpu=$cpu"
4511         ;;
4512     esac
4513
4514 elif enabled alpha; then
4515
4516     cpuflags="-mcpu=$cpu"
4517
4518 elif enabled arm; then
4519
4520     check_arm_arch() {
4521         check_cpp_condition stddef.h \
4522             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4523             $cpuflags
4524     }
4525
4526     probe_arm_arch() {
4527         if   check_arm_arch 4;        then echo armv4
4528         elif check_arm_arch 4T;       then echo armv4t
4529         elif check_arm_arch 5;        then echo armv5
4530         elif check_arm_arch 5E;       then echo armv5e
4531         elif check_arm_arch 5T;       then echo armv5t
4532         elif check_arm_arch 5TE;      then echo armv5te
4533         elif check_arm_arch 5TEJ;     then echo armv5te
4534         elif check_arm_arch 6;        then echo armv6
4535         elif check_arm_arch 6J;       then echo armv6j
4536         elif check_arm_arch 6K;       then echo armv6k
4537         elif check_arm_arch 6Z;       then echo armv6z
4538         elif check_arm_arch 6ZK;      then echo armv6zk
4539         elif check_arm_arch 6T2;      then echo armv6t2
4540         elif check_arm_arch 7;        then echo armv7
4541         elif check_arm_arch 7A  7_A;  then echo armv7-a
4542         elif check_arm_arch 7S;       then echo armv7-a
4543         elif check_arm_arch 7R  7_R;  then echo armv7-r
4544         elif check_arm_arch 7M  7_M;  then echo armv7-m
4545         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4546         elif check_arm_arch 8A  8_A;  then echo armv8-a
4547         fi
4548     }
4549
4550     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4551
4552     case $cpu in
4553         armv*)
4554             cpuflags="-march=$cpu"
4555             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4556         ;;
4557         *)
4558             cpuflags="-mcpu=$cpu"
4559             case $cpu in
4560                 cortex-a*)                               subarch=armv7a  ;;
4561                 cortex-r*)                               subarch=armv7r  ;;
4562                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4563                 arm11*)                                  subarch=armv6   ;;
4564                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4565                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4566                 *)                             subarch=$(probe_arm_arch) ;;
4567             esac
4568         ;;
4569     esac
4570
4571     case "$subarch" in
4572         armv5t*)    enable fast_clz                ;;
4573         armv[6-8]*)
4574             enable fast_clz
4575             disabled fast_unaligned || enable fast_unaligned
4576             ;;
4577     esac
4578
4579 elif enabled avr32; then
4580
4581     case $cpu in
4582         ap7[02]0[0-2])
4583             subarch="avr32_ap"
4584             cpuflags="-mpart=$cpu"
4585         ;;
4586         ap)
4587             subarch="avr32_ap"
4588             cpuflags="-march=$cpu"
4589         ;;
4590         uc3[ab]*)
4591             subarch="avr32_uc"
4592             cpuflags="-mcpu=$cpu"
4593         ;;
4594         uc)
4595             subarch="avr32_uc"
4596             cpuflags="-march=$cpu"
4597         ;;
4598     esac
4599
4600 elif enabled bfin; then
4601
4602     cpuflags="-mcpu=$cpu"
4603
4604 elif enabled mips; then
4605
4606     cpuflags="-march=$cpu"
4607
4608     if [ "$cpu" != "generic" ]; then
4609         disable mips32r2
4610         disable mips32r5
4611         disable mips64r2
4612         disable mips32r6
4613         disable mips64r6
4614         disable loongson2
4615         disable loongson3
4616
4617         case $cpu in
4618             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4619                 enable mips32r2
4620                 disable msa
4621             ;;
4622             p5600|i6400|p6600)
4623                 disable mipsdsp
4624                 disable mipsdspr2
4625             ;;
4626             loongson*)
4627                 enable loongson2
4628                 enable loongson3
4629                 enable local_aligned_8 local_aligned_16 local_aligned_32
4630                 enable simd_align_16
4631                 enable fast_64bit
4632                 enable fast_clz
4633                 enable fast_cmov
4634                 enable fast_unaligned
4635                 disable aligned_stack
4636                 disable mipsfpu
4637                 disable mipsdsp
4638                 disable mipsdspr2
4639                 case $cpu in
4640                     loongson3*)
4641                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4642                     ;;
4643                     loongson2e)
4644                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4645                     ;;
4646                     loongson2f)
4647                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4648                     ;;
4649                 esac
4650             ;;
4651             *)
4652                 # Unknown CPU. Disable everything.
4653                 warn "unknown CPU. Disabling all MIPS optimizations."
4654                 disable mipsfpu
4655                 disable mipsdsp
4656                 disable mipsdspr2
4657                 disable msa
4658                 disable mmi
4659             ;;
4660         esac
4661
4662         case $cpu in
4663             24kc)
4664                 disable mipsfpu
4665                 disable mipsdsp
4666                 disable mipsdspr2
4667             ;;
4668             24kf*)
4669                 disable mipsdsp
4670                 disable mipsdspr2
4671             ;;
4672             24kec|34kc|1004kc)
4673                 disable mipsfpu
4674                 disable mipsdspr2
4675             ;;
4676             24kef*|34kf*|1004kf*)
4677                 disable mipsdspr2
4678             ;;
4679             74kc)
4680                 disable mipsfpu
4681             ;;
4682             p5600)
4683                 enable mips32r5
4684                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4685             ;;
4686             i6400)
4687                 enable mips64r6
4688                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4689             ;;
4690             p6600)
4691                 enable mips64r6
4692                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4693             ;;
4694         esac
4695     else
4696         # We do not disable anything. Is up to the user to disable the unwanted features.
4697         warn 'generic cpu selected'
4698     fi
4699
4700 elif enabled ppc; then
4701
4702     disable ldbrx
4703
4704     case $(tolower $cpu) in
4705         601|ppc601|powerpc601)
4706             cpuflags="-mcpu=601"
4707             disable altivec
4708         ;;
4709         603*|ppc603*|powerpc603*)
4710             cpuflags="-mcpu=603"
4711             disable altivec
4712         ;;
4713         604*|ppc604*|powerpc604*)
4714             cpuflags="-mcpu=604"
4715             disable altivec
4716         ;;
4717         g3|75*|ppc75*|powerpc75*)
4718             cpuflags="-mcpu=750"
4719             disable altivec
4720         ;;
4721         g4|745*|ppc745*|powerpc745*)
4722             cpuflags="-mcpu=7450"
4723             disable vsx
4724         ;;
4725         74*|ppc74*|powerpc74*)
4726             cpuflags="-mcpu=7400"
4727             disable vsx
4728         ;;
4729         g5|970|ppc970|powerpc970)
4730             cpuflags="-mcpu=970"
4731             disable vsx
4732         ;;
4733         power[3-6]*)
4734             cpuflags="-mcpu=$cpu"
4735             disable vsx
4736         ;;
4737         power[7-8]*)
4738             cpuflags="-mcpu=$cpu"
4739         ;;
4740         cell)
4741             cpuflags="-mcpu=cell"
4742             enable ldbrx
4743             disable vsx
4744         ;;
4745         e500mc)
4746             cpuflags="-mcpu=e500mc"
4747             disable altivec
4748         ;;
4749         e500v2)
4750             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4751             disable altivec
4752             disable dcbzl
4753         ;;
4754         e500)
4755             cpuflags="-mcpu=8540 -mhard-float"
4756             disable altivec
4757             disable dcbzl
4758         ;;
4759     esac
4760
4761 elif enabled sparc; then
4762
4763     case $cpu in
4764         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4765             cpuflags="-mcpu=$cpu"
4766         ;;
4767         ultrasparc*|niagara[234])
4768             cpuflags="-mcpu=$cpu"
4769         ;;
4770     esac
4771
4772 elif enabled x86; then
4773
4774     case $cpu in
4775         i[345]86|pentium)
4776             cpuflags="-march=$cpu"
4777             disable i686
4778             disable mmx
4779         ;;
4780         # targets that do NOT support nopl and conditional mov (cmov)
4781         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4782             cpuflags="-march=$cpu"
4783             disable i686
4784         ;;
4785         # targets that do support nopl and conditional mov (cmov)
4786         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4787         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4788         |amdfam10|barcelona|b[dt]ver*|znver*)
4789             cpuflags="-march=$cpu"
4790             enable i686
4791             enable fast_cmov
4792         ;;
4793         # targets that do support conditional mov but on which it's slow
4794         pentium4|pentium4m|prescott|nocona)
4795             cpuflags="-march=$cpu"
4796             enable i686
4797             disable fast_cmov
4798         ;;
4799     esac
4800
4801 fi
4802
4803 if [ "$cpu" != generic ]; then
4804     add_cflags  $cpuflags
4805     add_asflags $cpuflags
4806     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4807 fi
4808
4809 # compiler sanity check
4810 check_exec <<EOF
4811 int main(void){ return 0; }
4812 EOF
4813 if test "$?" != 0; then
4814     echo "$cc is unable to create an executable file."
4815     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4816         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4817         echo "Only do this if you know what cross compiling means."
4818     fi
4819     die "C compiler test failed."
4820 fi
4821
4822 add_cppflags -D_ISOC99_SOURCE
4823 add_cxxflags -D__STDC_CONSTANT_MACROS
4824 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4825
4826 # some compilers silently accept -std=c11, so we also need to check that the
4827 # version macro is defined properly
4828 check_cpp_condition ctype.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
4829     add_cflags -std=c11 ||
4830     check_cflags -std=c99
4831
4832 check_cppflags -D_FILE_OFFSET_BITS=64
4833 check_cppflags -D_LARGEFILE_SOURCE
4834
4835 add_host_cppflags -D_ISOC99_SOURCE
4836 check_host_cflags -std=c99
4837 check_host_cflags -Wall
4838 check_host_cflags $host_cflags_speed
4839
4840 check_64bit(){
4841     arch32=$1
4842     arch64=$2
4843     expr=$3
4844     check_code cc "" "int test[2*($expr) - 1]" &&
4845         subarch=$arch64 || subarch=$arch32
4846 }
4847
4848 case "$arch" in
4849     aarch64|alpha|ia64)
4850         spic=$shared
4851     ;;
4852     mips)
4853         check_64bit mips mips64 '_MIPS_SIM > 1'
4854         spic=$shared
4855     ;;
4856     parisc)
4857         check_64bit parisc parisc64 'sizeof(void *) > 4'
4858         spic=$shared
4859     ;;
4860     ppc)
4861         check_64bit ppc ppc64 'sizeof(void *) > 4'
4862         spic=$shared
4863     ;;
4864     s390)
4865         check_64bit s390 s390x 'sizeof(void *) > 4'
4866         spic=$shared
4867     ;;
4868     sparc)
4869         check_64bit sparc sparc64 'sizeof(void *) > 4'
4870         spic=$shared
4871     ;;
4872     x86)
4873         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4874         # Treat x32 as x64 for now. Note it also needs spic=$shared
4875         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4876             subarch=x86_64
4877         if test "$subarch" = "x86_64"; then
4878             spic=$shared
4879         fi
4880     ;;
4881     ppc)
4882         check_cc <<EOF && subarch="ppc64"
4883         int test[(int)sizeof(char*) - 7];
4884 EOF
4885     ;;
4886 esac
4887
4888 enable $subarch
4889 enabled spic && enable_weak pic
4890
4891 enabled x86_64 && objformat=elf64 || objformat="elf32"
4892
4893 # OS specific
4894 case $target_os in
4895     aix)
4896         SHFLAGS=-shared
4897         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4898         enabled shared && add_ldflags -Wl,-brtl
4899         ;;
4900     android)
4901         disable symver
4902         enable section_data_rel_ro
4903         SLIB_INSTALL_NAME='$(SLIBNAME)'
4904         SLIB_INSTALL_LINKS=
4905         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4906         ;;
4907     haiku)
4908         prefix_default="/boot/common"
4909         network_extralibs="-lnetwork"
4910         host_extralibs=
4911         ;;
4912     sunos)
4913         SHFLAGS='-shared -Wl,-h,$$(@F)'
4914         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4915         network_extralibs="-lsocket -lnsl"
4916         add_cppflags -D__EXTENSIONS__
4917         # When using suncc to build, the Solaris linker will mark
4918         # an executable with each instruction set encountered by
4919         # the Solaris assembler.  As our libraries contain their own
4920         # guards for processor-specific code, instead suppress
4921         # generation of the HWCAPS ELF section on Solaris x86 only.
4922         enabled_all suncc x86 &&
4923             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4924             add_ldflags -Wl,-M,mapfile
4925         nm_default='nm -P -g'
4926         version_script='-M'
4927         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4928         ;;
4929     netbsd)
4930         disable symver
4931         oss_indev_extralibs="-lossaudio"
4932         oss_outdev_extralibs="-lossaudio"
4933         enabled gcc || check_ldflags -Wl,-zmuldefs
4934         ;;
4935     openbsd|bitrig)
4936         disable symver
4937         SHFLAGS='-shared'
4938         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4939         SLIB_INSTALL_LINKS=
4940         oss_indev_extralibs="-lossaudio"
4941         oss_outdev_extralibs="-lossaudio"
4942         ;;
4943     dragonfly)
4944         disable symver
4945         ;;
4946     freebsd)
4947         ;;
4948     bsd/os)
4949         add_extralibs -lpoll -lgnugetopt
4950         strip="strip -d"
4951         ;;
4952     darwin)
4953         enabled ppc && add_asflags -force_cpusubtype_ALL
4954         install_name_dir_default='$(SHLIBDIR)'
4955         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4956         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4957         strip="${strip} -x"
4958         add_ldflags -Wl,-dynamic,-search_paths_first
4959         SLIBSUF=".dylib"
4960         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4961         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4962         objformat="macho"
4963         enabled x86_64 && objformat="macho64" || objformat="macho32"
4964         enabled_any pic shared x86_64 ||
4965             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4966         check_header dispatch/dispatch.h &&
4967             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4968         version_script='-exported_symbols_list'
4969         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4970         ;;
4971     msys*)
4972         die "Native MSYS builds are discouraged, please use the MINGW environment."
4973         ;;
4974     mingw32*|mingw64*)
4975         if test $target_os = "mingw32ce"; then
4976             disable network
4977         else
4978             target_os=mingw32
4979         fi
4980         LIBTARGET=i386
4981         if enabled x86_64; then
4982             LIBTARGET="i386:x86-64"
4983         elif enabled arm; then
4984             LIBTARGET=arm-wince
4985         fi
4986         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4987         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4988         shlibdir_default="$bindir_default"
4989         SLIBPREF=""
4990         SLIBSUF=".dll"
4991         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4992         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4993         dlltool="${cross_prefix}dlltool"
4994         if check_cmd lib.exe -list; then
4995             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4996             if enabled x86_64; then
4997                 LIBTARGET=x64
4998             fi
4999         elif check_cmd $dlltool --version; then
5000             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5001         fi
5002         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5003         SLIB_INSTALL_LINKS=
5004         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5005         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5006         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
5007         enabled x86_64 && objformat="win64" || objformat="win32"
5008         ranlib=:
5009         enable dos_paths
5010         check_ldflags -Wl,--nxcompat,--dynamicbase
5011         # Lets work around some stupidity in binutils.
5012         # ld will strip relocations from executables even though we need them
5013         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5014         # however ld then forgets what the entry point should be (oops) so we
5015         # have to manually (re)set it.
5016         if enabled x86_32; then
5017             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5018         elif enabled x86_64; then
5019             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5020             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5021             # Set image base >4GB for extra entropy with HEASLR
5022             add_ldexeflags -Wl,--image-base,0x140000000
5023             append SHFLAGS -Wl,--image-base,0x180000000
5024         fi
5025         ;;
5026     win32|win64)
5027         disable symver
5028         if enabled shared; then
5029             # Link to the import library instead of the normal static library
5030             # for shared libs.
5031             LD_LIB='%.lib'
5032             # Cannot build both shared and static libs with MSVC or icl.
5033             disable static
5034         fi
5035         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5036         shlibdir_default="$bindir_default"
5037         SLIBPREF=""
5038         SLIBSUF=".dll"
5039         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5040         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5041         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5042         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5043         SLIB_INSTALL_LINKS=
5044         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5045         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5046         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5047         enabled x86_64 && objformat="win64" || objformat="win32"
5048         ranlib=:
5049         enable dos_paths
5050         ;;
5051     cygwin*)
5052         target_os=cygwin
5053         shlibdir_default="$bindir_default"
5054         SLIBPREF="cyg"
5055         SLIBSUF=".dll"
5056         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5057         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5058         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5059         SLIB_INSTALL_LINKS=
5060         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5061         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5062         enabled x86_64 && objformat="win64" || objformat="win32"
5063         enable dos_paths
5064         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
5065         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5066         ;;
5067     *-dos|freedos|opendos)
5068         network_extralibs="-lsocket"
5069         objformat="coff"
5070         enable dos_paths
5071         add_cppflags -U__STRICT_ANSI__
5072         ;;
5073     linux)
5074         enable section_data_rel_ro
5075         enabled_any arm aarch64 && enable_weak linux_perf
5076         ;;
5077     irix*)
5078         target_os=irix
5079         ranlib="echo ignoring ranlib"
5080         ;;
5081     os/2*)
5082         strip="lxlite -CS"
5083         objformat="aout"
5084         add_cppflags -D_GNU_SOURCE
5085         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5086         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5087         LIBSUF="_s.a"
5088         SLIBPREF=""
5089         SLIBSUF=".dll"
5090         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5091         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5092         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5093             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5094             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5095             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5096             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5097         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5098             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5099         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5100         SLIB_INSTALL_LINKS=
5101         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5102         enable dos_paths
5103         enable_weak os2threads
5104         ;;
5105     gnu/kfreebsd)
5106         add_cppflags -D_BSD_SOURCE
5107         ;;
5108     gnu)
5109         ;;
5110     qnx)
5111         add_cppflags -D_QNX_SOURCE
5112         network_extralibs="-lsocket"
5113         ;;
5114     symbian)
5115         SLIBSUF=".dll"
5116         enable dos_paths
5117         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5118         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5119         add_ldflags -Wl,--target1-abs,--no-undefined \
5120                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5121                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5122         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5123                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5124                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5125         ;;
5126     osf1)
5127         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
5128         ;;
5129     minix)
5130         ;;
5131     none)
5132         ;;
5133     *)
5134         die "Unknown OS '$target_os'."
5135         ;;
5136 esac
5137
5138 # test if creating links works
5139 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5140 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5141 mkdir "$link_dest"
5142 $ln_s "$link_dest" "$link_name"
5143 touch "$link_dest/test_file"
5144 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5145     # create link to source path
5146     [ -e src ] && rm src
5147     $ln_s "$source_path" src
5148     source_link=src
5149 else
5150     # creating directory links doesn't work
5151     # fall back to using the full source path
5152     source_link="$source_path"
5153 fi
5154 # cleanup
5155 rm -r "$link_dest"
5156 rm -r "$link_name"
5157
5158 # determine libc flavour
5159
5160 probe_libc(){
5161     pfx=$1
5162     pfx_no_=${pfx%_}
5163     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5164     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5165         eval ${pfx}libc_type=uclibc
5166         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5167     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5168         eval ${pfx}libc_type=glibc
5169         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5170     # MinGW headers can be installed on Cygwin, so check for newlib first.
5171     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5172         eval ${pfx}libc_type=newlib
5173         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5174     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5175     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5176         eval ${pfx}libc_type=mingw64
5177         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5178             add_compat msvcrt/snprintf.o
5179             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5180         fi
5181         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5182         eval test \$${pfx_no_}cc_type = "gcc" &&
5183             add_${pfx}cppflags -D__printf__=__gnu_printf__
5184     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5185          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5186         eval ${pfx}libc_type=mingw32
5187         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5188             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5189             die "ERROR: MinGW32 runtime version must be >= 3.15."
5190         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5191         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||
5192             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
5193         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5194             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5195         eval test \$${pfx_no_}cc_type = "gcc" &&
5196             add_${pfx}cppflags -D__printf__=__gnu_printf__
5197     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5198         eval ${pfx}libc_type=msvcrt
5199         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5200             if [ "$pfx" = host_ ]; then
5201                 add_host_cppflags -Dsnprintf=_snprintf
5202             else
5203                 add_compat strtod.o strtod=avpriv_strtod
5204                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5205                                              _snprintf=avpriv_snprintf  \
5206                                              vsnprintf=avpriv_vsnprintf
5207             fi
5208         fi
5209         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5210         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5211         # 0x601 by default unless something else is set by the user.
5212         # This can easily lead to us detecting functions only present
5213         # in such new versions and producing binaries requiring windows 7.0.
5214         # Therefore explicitly set the default to XP unless the user has
5215         # set something else on the command line.
5216         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5217         # family. For these cases, configure is free to use any functions
5218         # found in the SDK headers by default. (Alternatively, we could force
5219         # _WIN32_WINNT to 0x0602 in that case.)
5220         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5221             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
5222 #ifdef WINAPI_FAMILY
5223 #include <winapifamily.h>
5224 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5225 #error not desktop
5226 #endif
5227 #endif
5228 EOF
5229         if [ "$pfx" = "" ]; then
5230             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5231             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5232         fi
5233     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5234         eval ${pfx}libc_type=klibc
5235     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5236         eval ${pfx}libc_type=bionic
5237     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5238         eval ${pfx}libc_type=solaris
5239         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5240     fi
5241     check_${pfx}cc <<EOF
5242 #include <time.h>
5243 void *v = localtime_r;
5244 EOF
5245 test "$?" != 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
5246 #include <time.h>
5247 void *v = localtime_r;
5248 EOF
5249
5250 }
5251
5252 probe_libc
5253 test -n "$libc_type" && enable libc_$libc_type
5254 probe_libc host_
5255 test -n "$host_libc_type" && enable host_libc_$host_libc_type
5256
5257 # hacks for compiler/libc/os combinations
5258
5259 case $libc_type in
5260     bionic)
5261         add_compat strtod.o strtod=avpriv_strtod
5262         ;;
5263     glibc)
5264         if enabled tms470; then
5265             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
5266             add_cppflags -D__USER_LABEL_PREFIX__=
5267             add_cppflags -D__builtin_memset=memset
5268             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
5269             add_cflags   -pds=48    # incompatible redefinition of macro
5270         elif enabled ccc; then
5271             add_ldflags -Wl,-z,now  # calls to libots crash without this
5272         fi
5273         ;;
5274 esac
5275
5276 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5277     add_cppflags '-I\$(SRC_PATH)/compat/float'
5278
5279 esc(){
5280     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
5281 }
5282
5283 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
5284
5285 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5286
5287 set_default libdir
5288 : ${shlibdir_default:="$libdir"}
5289 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5290
5291 set_default $PATHS_LIST
5292 set_default nm
5293
5294 # we need to build at least one lib type
5295 if ! enabled_any static shared; then
5296     cat <<EOF
5297 At least one library type must be built.
5298 Specify --enable-static to build the static libraries or --enable-shared to
5299 build the shared libraries as well. To only build the shared libraries specify
5300 --disable-static in addition to --enable-shared.
5301 EOF
5302     exit 1
5303 fi
5304
5305 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5306
5307 enable_weak_pic() {
5308     disabled pic && return
5309     enable pic
5310     add_cppflags -DPIC
5311     case "$target_os" in
5312     mingw*|cygwin*)
5313         ;;
5314     *)
5315         add_cflags -fPIC
5316         ;;
5317     esac
5318     add_asflags  -fPIC
5319 }
5320
5321 enabled pic && enable_weak_pic
5322
5323 check_cc <<EOF || die "Symbol mangling check failed."
5324 int ff_extern;
5325 EOF
5326 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5327 extern_prefix=${sym%%ff_extern*}
5328
5329 check_inline_asm inline_asm '"" ::'
5330
5331 _restrict=
5332 for restrict_keyword in restrict __restrict__ __restrict; do
5333     check_cc <<EOF && _restrict=$restrict_keyword && break
5334 void foo(char * $restrict_keyword p);
5335 EOF
5336 done
5337
5338 check_cc <<EOF && enable pragma_deprecated
5339 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
5340 EOF
5341
5342 check_cc <<EOF && enable attribute_packed
5343 struct { int x; } __attribute__((packed)) x;
5344 EOF
5345
5346 check_cc <<EOF && enable attribute_may_alias
5347 union { int x; } __attribute__((may_alias)) x;
5348 EOF
5349
5350 check_cc <<EOF || die "endian test failed"
5351 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5352 EOF
5353 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5354
5355 check_cc <<EOF && enable const_nan
5356 #include <math.h>
5357 void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }
5358 EOF
5359
5360 if ! enabled ppc64 || enabled bigendian; then
5361     disable vsx
5362 fi
5363
5364 check_gas() {
5365     log "check_gas using '$as' as AS"
5366     # :vararg is used on aarch64, arm and ppc altivec
5367     check_as <<EOF || return 1
5368 .macro m n, y:vararg=0
5369 \n: .int \y
5370 .endm
5371 m x
5372 EOF
5373     # .altmacro is only used in arm asm
5374     ! enabled arm || check_as <<EOF || return 1
5375 .altmacro
5376 EOF
5377     enable gnu_as
5378     return 0
5379 }
5380
5381 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5382     nogas=:
5383     enabled_any arm aarch64 && nogas=die
5384     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5385     as_noop=-v
5386
5387     case $as_type in
5388         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5389         gcc)  gaspp_as_type=gas ;;
5390         *)    gaspp_as_type=$as_type ;;
5391     esac
5392
5393     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5394
5395     test "${as#*gas-preprocessor.pl}" != "$as" ||
5396     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5397         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5398
5399     if ! check_gas ; then
5400         as=${gas:=$as}
5401         check_gas || \
5402             $nogas "GNU assembler not found, install/update gas-preprocessor"
5403     fi
5404
5405     check_as <<EOF && enable as_func
5406 .func test
5407 .endfunc
5408 EOF
5409 fi
5410
5411 check_inline_asm inline_asm_labels '"1:\n"'
5412
5413 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5414
5415 if enabled aarch64; then
5416     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5417     # internal assembler in clang 3.3 does not support this instruction
5418     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5419     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5420
5421     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5422
5423 elif enabled alpha; then
5424
5425     check_cflags -mieee
5426
5427 elif enabled arm; then
5428
5429     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
5430
5431     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
5432 float func(float a, float b){ return a+b; }
5433 EOF
5434
5435     enabled thumb && check_cflags -mthumb || check_cflags -marm
5436
5437     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
5438         enable vfp_args
5439     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5440         enable vfp_args
5441     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5442         case "${cross_prefix:-$cc}" in
5443             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
5444             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
5445 __asm__ (".eabi_attribute 28, 1");
5446 int main(void) { return 0; }
5447 EOF
5448         esac
5449         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5450     fi
5451
5452     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5453     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5454     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5455     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5456     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5457     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5458     enabled setend  && check_insn setend  'setend be'
5459
5460     [ $target_os = linux ] || [ $target_os = android ] ||
5461         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5462             $ARCH_EXT_LIST_ARM
5463
5464     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5465
5466     check_as <<EOF && enable as_dn_directive
5467 ra .dn d0.i16
5468 .unreq ra
5469 EOF
5470     check_as <<EOF && enable as_fpu_directive
5471 .fpu neon
5472 EOF
5473
5474     # llvm's integrated assembler supports .object_arch from llvm 3.5
5475     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5476         check_as <<EOF && enable as_object_arch
5477 .object_arch armv4
5478 EOF
5479
5480     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5481
5482 elif enabled mips; then
5483
5484     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5485     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5486     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5487
5488     # Enable minimum ISA based on selected options
5489     if enabled mips64; then
5490         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5491         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5492         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5493     else
5494         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5495         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5496         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5497         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5498     fi
5499
5500     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5501     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5502     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
5503     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5504     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5505
5506     if enabled bigendian && enabled msa; then
5507         disable msa
5508     fi
5509
5510 elif enabled parisc; then
5511
5512     if enabled gcc; then
5513         case $($cc -dumpversion) in
5514             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5515         esac
5516     fi
5517
5518 elif enabled ppc; then
5519
5520     enable local_aligned_8 local_aligned_16 local_aligned_32
5521
5522     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5523     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5524     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5525     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5526
5527     # AltiVec flags: The FSF version of GCC differs from the Apple version
5528     if enabled altivec; then
5529         check_cflags -maltivec -mabi=altivec &&
5530         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5531         check_cflags -faltivec
5532
5533         # check if our compiler supports Motorola AltiVec C API
5534         check_cc <<EOF || disable altivec
5535 $inc_altivec_h
5536 int main(void) {
5537     vector signed int v1 = (vector signed int) { 0 };
5538     vector signed int v2 = (vector signed int) { 1 };
5539     v1 = vec_add(v1, v2);
5540     return 0;
5541 }
5542 EOF
5543
5544         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5545     fi
5546
5547     if enabled vsx; then
5548         check_cflags -mvsx &&
5549         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5550     fi
5551
5552     if enabled power8; then
5553         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5554     fi
5555
5556 elif enabled x86; then
5557
5558     check_builtin rdtsc    intrin.h   "__rdtsc()"
5559     check_builtin mm_empty mmintrin.h "_mm_empty()"
5560
5561     enable local_aligned_8 local_aligned_16 local_aligned_32
5562
5563     # check whether EBP is available on x86
5564     # As 'i' is stored on the stack, this program will crash
5565     # if the base pointer is used to access it because the
5566     # base pointer is cleared in the inline assembly code.
5567     check_exec_crash <<EOF && enable ebp_available
5568 volatile int i=0;
5569 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5570 return i;
5571 EOF
5572
5573     # check whether EBX is available on x86
5574     check_inline_asm ebx_available '""::"b"(0)' &&
5575         check_inline_asm ebx_available '"":::"%ebx"'
5576
5577     # check whether xmm clobbers are supported
5578     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5579
5580     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5581         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5582
5583     # check whether binutils is new enough to compile SSSE3/MMXEXT
5584     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5585     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5586
5587     probe_x86asm(){
5588         x86asmexe_probe=$1
5589         if check_cmd $x86asmexe_probe -v; then
5590             x86asmexe=$x86asmexe_probe
5591             x86asm_type=nasm
5592             x86asm_debug="-g -F dwarf"
5593         elif check_cmd $x86asmexe_probe --version; then
5594             x86asmexe=$x86asmexe_probe
5595             x86asm_type=yasm
5596             x86asm_debug="-g dwarf2"
5597         fi
5598         check_x86asm "movbe ecx, [5]" && enable x86asm
5599     }
5600
5601     if ! disabled_any asm mmx x86asm; then
5602         disable x86asm
5603         for program in $x86asmexe nasm yasm; do
5604             probe_x86asm $program && break
5605         done
5606         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5607         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5608         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5609         X86ASMFLAGS="-f $objformat"
5610         enabled pic               && append X86ASMFLAGS "-DPIC"
5611         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5612         case "$objformat" in
5613             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5614         esac
5615
5616         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5617         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5618         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5619         check_x86asm "CPU amdnop" || disable cpunop
5620     fi
5621
5622     case "$cpu" in
5623         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5624             disable fast_clz
5625         ;;
5626     esac
5627
5628 fi
5629
5630 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5631
5632 check_ldflags -Wl,--as-needed
5633 check_ldflags -Wl,-z,noexecstack
5634
5635 if check_func dlopen && check_func dlsym; then
5636     ldl=
5637 elif check_func dlopen -ldl && check_func dlsym -ldl; then
5638     ldl=-ldl
5639 fi
5640
5641 avisynth_demuxer_extralibs='$ldl'
5642 cuda_extralibs='$ldl'
5643 decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
5644 decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
5645 libndi_newtek_outdev_extralibs="$libndi_newtek_outdev_extralibs $ldl"
5646 libndi_newtek_indev_extralibs="$libndi_newtek_indev_extralibs $ldl"
5647 frei0r_filter_extralibs='$ldl'
5648 frei0r_src_filter_extralibs='$ldl'
5649 ladspa_filter_extralibs='$ldl'
5650 nvenc_extralibs='$ldl'
5651
5652 if ! disabled network; then
5653     check_func getaddrinfo $network_extralibs
5654     check_func inet_aton $network_extralibs
5655
5656     check_type netdb.h "struct addrinfo"
5657     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5658     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5659     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5660     check_type poll.h "struct pollfd"
5661     check_type netinet/sctp.h "struct sctp_event_subscribe"
5662     check_struct "sys/socket.h" "struct msghdr" msg_flags
5663     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5664     check_type netinet/in.h "struct sockaddr_in6"
5665     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5666     check_type "sys/types.h sys/socket.h" socklen_t
5667
5668     # Prefer arpa/inet.h over winsock2
5669     if check_header arpa/inet.h ; then
5670         check_func closesocket
5671     elif check_header winsock2.h ; then
5672         check_func_headers winsock2.h closesocket -lws2 &&
5673             network_extralibs="-lws2" ||
5674         { check_func_headers winsock2.h closesocket -lws2_32 &&
5675             network_extralibs="-lws2_32"; } || disable winsock2_h network
5676         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5677
5678         check_type ws2tcpip.h socklen_t
5679         check_type ws2tcpip.h "struct addrinfo"
5680         check_type ws2tcpip.h "struct group_source_req"
5681         check_type ws2tcpip.h "struct ip_mreq_source"
5682         check_type ws2tcpip.h "struct ipv6_mreq"
5683         check_type winsock2.h "struct pollfd"
5684         check_struct winsock2.h "struct sockaddr" sa_len
5685         check_type ws2tcpip.h "struct sockaddr_in6"
5686         check_type ws2tcpip.h "struct sockaddr_storage"
5687     else
5688         disable network
5689     fi
5690 fi
5691
5692 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5693 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5694 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5695 check_builtin sarestart signal.h "SA_RESTART"
5696 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
5697 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5698 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5699 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5700 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5701
5702 case "$custom_allocator" in
5703     jemalloc)
5704         # jemalloc by default does not use a prefix
5705         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5706     ;;
5707     tcmalloc)
5708         require_pkg_config "" libtcmalloc gperftools/tcmalloc.h tc_malloc
5709         malloc_prefix=tc_
5710     ;;
5711 esac
5712
5713 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5714 check_func  ${malloc_prefix}memalign            && enable memalign
5715 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5716
5717 check_func  access
5718 check_func_headers stdlib.h arc4random
5719 check_func_headers time.h clock_gettime ||
5720     { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }
5721 check_func  fcntl
5722 check_func  fork
5723 check_func  gethrtime
5724 check_func  getopt
5725 check_func  getrusage
5726 check_func  gettimeofday
5727 check_func  isatty
5728 check_func  mach_absolute_time
5729 check_func  mkstemp
5730 check_func  mmap
5731 check_func  mprotect
5732 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5733 check_func_headers time.h nanosleep ||
5734     { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }
5735 check_func  sched_getaffinity
5736 check_func  setrlimit
5737 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5738 check_func  strerror_r
5739 check_func  sysconf
5740 check_func  sysctl
5741 check_func  usleep
5742
5743 check_func_headers conio.h kbhit
5744 check_func_headers io.h setmode
5745 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5746 check_func_headers stdlib.h getenv
5747 check_func_headers sys/stat.h lstat
5748
5749 check_func_headers windows.h GetProcessAffinityMask
5750 check_func_headers windows.h GetProcessTimes
5751 check_func_headers windows.h GetSystemTimeAsFileTime
5752 check_func_headers windows.h LoadLibrary
5753 check_func_headers windows.h MapViewOfFile
5754 check_func_headers windows.h PeekNamedPipe
5755 check_func_headers windows.h SetConsoleTextAttribute
5756 check_func_headers windows.h SetConsoleCtrlHandler
5757 check_func_headers windows.h Sleep
5758 check_func_headers windows.h VirtualAlloc
5759 check_struct windows.h "CONDITION_VARIABLE" Ptr
5760 check_func_headers glob.h glob
5761 enabled xlib &&
5762     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5763
5764 check_header d3d11.h
5765 check_header direct.h
5766 check_header dirent.h
5767 check_header dlfcn.h
5768 check_header dxgidebug.h
5769 check_header dxva.h
5770 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5771 check_header io.h
5772 check_header libcrystalhd/libcrystalhd_if.h
5773 check_header mach/mach_time.h
5774 check_header malloc.h
5775 check_header net/udplite.h
5776 check_header poll.h
5777 check_header sys/mman.h
5778 check_header sys/param.h
5779 check_header sys/resource.h
5780 check_header sys/select.h
5781 check_header sys/time.h
5782 check_header sys/un.h
5783 check_header termios.h
5784 check_header unistd.h
5785 check_header valgrind/valgrind.h
5786 check_header VideoDecodeAcceleration/VDADecoder.h
5787 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
5788 check_header windows.h
5789 check_header X11/extensions/XvMClib.h
5790 check_header asm/types.h
5791
5792 # it seems there are versions of clang in some distros that try to use the
5793 # gcc headers, which explodes for stdatomic
5794 # so we also check that atomics actually work here
5795 check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"
5796
5797 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
5798 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
5799 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
5800 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
5801
5802 enabled appkit       && check_apple_framework AppKit
5803 enabled audiotoolbox && check_apple_framework AudioToolbox
5804 enabled avfoundation && check_apple_framework AVFoundation
5805 enabled coreimage    && check_apple_framework CoreImage
5806 enabled videotoolbox && check_apple_framework VideoToolbox
5807
5808 enabled avfoundation && {
5809     check_lib avfoundation CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
5810     check_lib avfoundation ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
5811
5812 enabled videotoolbox &&
5813     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
5814
5815 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5816
5817 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5818 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5819 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5820 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5821 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5822
5823 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
5824 check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
5825 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
5826 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
5827 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
5828 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
5829 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
5830 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
5831 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
5832
5833 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5834
5835 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5836
5837 if ! disabled w32threads && ! enabled pthreads; then
5838     check_func_headers "windows.h process.h" _beginthreadex &&
5839         enable w32threads || disable w32threads
5840     if ! enabled w32threads && enabled winrt; then
5841         check_func_headers "windows.h" CreateThread &&
5842             enable w32threads || disable w32threads
5843     fi
5844 fi
5845
5846 # check for some common methods of building with pthread support
5847 # do this before the optional library checks as some of them require pthreads
5848 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5849     if check_lib pthreads pthread.h pthread_join   -pthread &&
5850        check_lib pthreads pthread.h pthread_create -pthread; then
5851         add_cflags -pthread
5852     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
5853          check_lib pthreads pthread.h pthread_create -pthreads; then
5854         add_cflags -pthreads
5855     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
5856          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
5857         add_cflags -ldl -pthread
5858     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
5859          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
5860         :
5861     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
5862          check_lib pthreads pthread.h pthread_create -lpthread; then
5863         :
5864     elif check_func pthread_join && check_func pthread_create; then
5865         enable pthreads
5866     fi
5867     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5868 fi
5869
5870
5871 if enabled pthreads; then
5872   check_func pthread_cancel
5873 fi
5874
5875 enabled pthreads &&
5876     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
5877
5878 enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz
5879 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
5880 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
5881
5882 check_lib libm math.h sin -lm && LIBM="-lm"
5883
5884 atan2f_args=2
5885 copysign_args=2
5886 hypot_args=2
5887 ldexpf_args=2
5888 powf_args=2
5889
5890 for func in $MATH_FUNCS; do
5891     eval check_mathfunc $func \${${func}_args:-1} $LIBM
5892 done
5893
5894 for func in $COMPLEX_FUNCS; do
5895     eval check_complexfunc $func \${${func}_args:-1}
5896 done
5897
5898 # these are off by default, so fail if requested and not available
5899 enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda
5900 enabled cuvid             && { enabled cuda ||
5901                                die "ERROR: CUVID requires CUDA"; }
5902 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5903 enabled decklink          && { require_header DeckLinkAPI.h &&
5904                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }
5905 enabled libndi_newtek     && require_header Processing.NDI.Lib.h
5906 enabled frei0r            && require_header frei0r.h
5907 enabled gmp               && require gmp gmp.h mpz_export -lgmp
5908 enabled gnutls            && require_pkg_config "" gnutls gnutls/gnutls.h gnutls_global_init
5909 enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }
5910 enabled ladspa            && require_header ladspa.h
5911 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5912 enabled libass            && require_pkg_config "" libass ass/ass.h ass_library_init
5913 enabled libbluray         && require_pkg_config "" libbluray libbluray/bluray.h bd_open
5914 enabled libbs2b           && require_pkg_config "" libbs2b bs2b.h bs2b_open
5915 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5916                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
5917                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5918 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
5919 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
5920 enabled libdrm            && require_pkg_config "" libdrm xf86drm.h drmGetVersion
5921 enabled libfdk_aac        && { use_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5922                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5923                                  warn "using libfdk without pkg-config"; } }
5924 flite_extralibs="-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"
5925 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
5926 enabled fontconfig        && enable libfontconfig
5927 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
5928 enabled libfreetype       && require_pkg_config libfreetype2 freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
5929 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
5930 enabled libgme            && { use_pkg_config "" libgme gme/gme.h gme_new_emu ||
5931                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
5932 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5933                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
5934                                done || die "ERROR: libgsm not found"; }
5935 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5936 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
5937 # While it may appear that require is being used as a pkg-config
5938 # fallback for libmfx, it is actually being used to detect a different
5939 # installation route altogether.  If libmfx is installed via the Intel
5940 # Media SDK or Intel Media Server Studio, these don't come with
5941 # pkg-config support.  Instead, users should make sure that the build
5942 # can find the libraries and headers through other means.
5943 enabled libmfx            && { use_pkg_config "" libmfx "mfx/mfxvideo.h" MFXInit ||
5944                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }
5945 enabled libmodplug        && require_pkg_config "" libmodplug libmodplug/modplug.h ModPlug_Load
5946 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5947 enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa
5948 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||
5949                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||
5950                                die "ERROR: libnpp not found"; }
5951 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5952 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5953 enabled libopencv         && { check_header opencv2/core/core_c.h &&
5954                                { use_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
5955                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
5956                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
5957 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
5958 enabled libopenjpeg       && { { check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5959                                check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 ||
5960                                { check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5961                                check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||
5962                                { check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5963                                { check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5964                                { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
5965                                die "ERROR: libopenjpeg not found"; }
5966 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create
5967 enabled libopus           && {
5968     enabled libopus_decoder && {
5969         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
5970     }
5971     enabled libopus_encoder && {
5972         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
5973     }
5974 }
5975 enabled libpulse          && require_pkg_config "" libpulse pulse/pulseaudio.h pa_context_new
5976 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
5977 enabled librtmp           && require_pkg_config "" librtmp librtmp/rtmp.h RTMP_Socket
5978 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5979 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
5980 enabled libsmbclient      && { use_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
5981                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5982 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
5983 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5984 enabled libssh            && require_pkg_config "" libssh libssh/sftp.h sftp_init
5985 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex
5986 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
5987 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5988 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5989                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5990                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5991 enabled libv4l2           && require_pkg_config "" libv4l2 libv4l2.h v4l2_ioctl
5992 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5993 enabled libvmaf           && require_pkg_config "" libvmaf libvmaf.h compute_vmaf
5994 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5995 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
5996                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
5997
5998 enabled libvpx            && {
5999     enabled libvpx_vp8_decoder && {
6000         use_pkg_config libvpx "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6001             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
6002                 die "ERROR: libvpx decoder version must be >=0.9.1";
6003     }
6004     enabled libvpx_vp8_encoder && {
6005         use_pkg_config libvpx "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6006             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
6007                 die "ERROR: libvpx encoder version must be >=0.9.7";
6008     }
6009     enabled libvpx_vp9_decoder && {
6010         use_pkg_config libvpx "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6011             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx
6012     }
6013     enabled libvpx_vp9_encoder && {
6014         use_pkg_config libvpx "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6015             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx
6016     }
6017     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6018         die "libvpx enabled but no supported decoders found"
6019     fi
6020 }
6021
6022 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6023 enabled libwebp           && {
6024     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6025     enabled libwebp_anim_encoder && { use_pkg_config libwebpmux "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
6026 enabled libx264           && { use_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6027                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&
6028                                  warn "using libx264 without pkg-config"; } } &&
6029                              require_cpp_condition x264.h "X264_BUILD >= 118" &&
6030                              { check_cpp_condition x264.h "X264_MPEG2" &&
6031                                enable libx262; }
6032 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6033                              require_cpp_condition x265.h "X265_BUILD >= 68"
6034 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
6035 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6036 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.3.0" zimg.h zimg_get_api_version
6037 enabled libzmq            && require_pkg_config "" libzmq zmq.h zmq_ctx_new
6038 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
6039                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6040                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6041 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6042 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6043 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6044                                { ! enabled cross_compile &&
6045                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6046                                  add_ldflags -L/opt/vc/lib/ &&
6047                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6048                                die "ERROR: mmal not found" &&
6049                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6050 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6051                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6052                                die "ERROR: openal not found"; } &&
6053                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6054                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6055 enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6056                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6057                                die "ERROR: opencl not found"; } &&
6058                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6059                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6060                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6061 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6062                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6063                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6064                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6065                                die "ERROR: opengl not found."
6066                              }
6067 enabled omx_rpi           && { check_header OMX_Core.h ||
6068                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
6069                                die "ERROR: OpenMAX IL headers not found"; }
6070 enabled omx               && require_header OMX_Core.h
6071 enabled openssl           && { use_pkg_config "" openssl openssl/ssl.h OPENSSL_init_ssl ||
6072                                use_pkg_config "" openssl openssl/ssl.h SSL_library_init ||
6073                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6074                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6075                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6076                                die "ERROR: openssl not found"; }
6077 enabled rkmpp             && { { require_pkg_config rockchip_mpp rockchip_mpp rockchip/rk_mpi.h mpp_create ||
6078                                  die "ERROR : Rockchip MPP was not found."; } &&
6079                                { check_func_headers rockchip/rk_mpi_cmd.h "MPP_DEC_GET_FREE_PACKET_SLOT_COUNT" ||
6080                                  die "ERROR: Rockchip MPP is outdated, please get a more recent one."; } &&
6081                                { enabled libdrm ||
6082                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6083                              }
6084
6085 if enabled gcrypt; then
6086     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6087     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6088         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6089         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6090         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6091             die "ERROR: gcrypt not found"
6092         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs
6093     else
6094         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6095     fi
6096 fi
6097
6098 if enabled sdl2; then
6099     SDL2_CONFIG="${cross_prefix}sdl2-config"
6100     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then
6101         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6102         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6103         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||
6104             disable sdl2
6105     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6106         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6107         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6108         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6109         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6110         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||
6111             disable sdl2
6112     else
6113         disable sdl2
6114     fi
6115     if test $target_os = "mingw32"; then
6116         sdl2_extralibs="$sdl2_extralibs -mconsole"
6117     fi
6118 fi
6119 enabled sdl2 && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs
6120
6121 if enabled decklink; then
6122     case $target_os in
6123         mingw32*|mingw64*|win32|win64)
6124             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6125             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6126             ;;
6127     esac
6128 fi
6129
6130 enabled securetransport &&
6131     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6132     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6133         disable securetransport
6134
6135 enabled schannel &&
6136     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6137     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6138     add_extralibs -lsecur32 ||
6139         disable schannel
6140
6141 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6142 enabled makeinfo \
6143     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6144     && enable makeinfo_html || disable makeinfo_html
6145 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6146 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6147 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6148 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6149
6150 # check V4L2 codecs available in the API
6151 check_header linux/fb.h
6152 check_header linux/videodev2.h
6153 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
6154 check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m
6155 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m
6156 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m
6157 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m
6158 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m
6159 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m
6160 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m
6161 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m
6162 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m
6163 check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m
6164
6165 check_header sys/videoio.h
6166 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
6167
6168 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6169 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6170 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6171 # w32api 3.12 had it defined wrong
6172 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
6173
6174 check_type "dshow.h" IBaseFilter
6175
6176 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6177 { check_header dev/bktr/ioctl_meteor.h &&
6178   check_header dev/bktr/ioctl_bt848.h; } ||
6179 { check_header machine/ioctl_meteor.h &&
6180   check_header machine/ioctl_bt848.h; } ||
6181 { check_header dev/video/meteor/ioctl_meteor.h &&
6182   check_header dev/video/bktr/ioctl_bt848.h; } ||
6183 check_header dev/ic/bt8xx.h
6184
6185 if check_struct sys/soundcard.h audio_buf_info bytes; then
6186     enable_safe sys/soundcard.h
6187 else
6188     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
6189     #include <sys/soundcard.h>
6190     audio_buf_info abc;
6191 EOF
6192 fi
6193 check_header soundcard.h
6194
6195 enabled alsa && check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
6196
6197 enabled jack && check_lib jack jack/jack.h jack_client_open -ljack &&
6198     check_func jack_port_get_latency_range -ljack
6199
6200 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6201
6202 if enabled libcdio; then
6203     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6204     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6205     die "ERROR: No usable libcdio/cdparanoia found"
6206 fi
6207
6208 enabled libxcb && check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || disable libxcb
6209
6210 if enabled libxcb; then
6211
6212     enabled libxcb_shm    && check_pkg_config xcb-shm    xcb/shm.h    xcb_shm_attach              || disable libxcb_shm
6213     enabled libxcb_shape  && check_pkg_config xcb-shape  xcb/shape.h  xcb_shape_get_rectangles    || disable libxcb_shape
6214     enabled libxcb_xfixes && check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || disable libxcb_xfixes
6215
6216     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
6217     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs
6218 fi
6219
6220 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6221
6222 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6223 # the desktop api partition
6224 check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6225 #ifdef WINAPI_FAMILY
6226 #include <winapifamily.h>
6227 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6228 #error desktop, not uwp
6229 #else
6230 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6231 #endif
6232 #else
6233 #error no family set
6234 #endif
6235 EOF
6236
6237 enabled vaapi &&
6238     check_lib vaapi va/va.h vaInitialize -lva
6239
6240 enabled vaapi &&
6241     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
6242     disable vaapi
6243
6244 enabled vaapi &&
6245     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
6246
6247 enabled vaapi &&
6248     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
6249
6250 enabled vdpau &&
6251     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
6252     disable vdpau
6253
6254 enabled vdpau &&
6255     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6256
6257 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6258
6259 if enabled x86; then
6260     case $target_os in
6261         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6262             ;;
6263         *)
6264             disable cuda cuvid nvenc
6265             ;;
6266     esac
6267 else
6268     disable cuda cuvid nvenc
6269 fi
6270
6271 enabled nvenc &&
6272     check_cc -I$source_path <<EOF || disable nvenc
6273 #include "compat/nvenc/nvEncodeAPI.h"
6274 NV_ENCODE_API_FUNCTION_LIST flist;
6275 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6276 int main(void) { return 0; }
6277 EOF
6278
6279 # Funny iconv installations are not unusual, so check it after all flags have been set
6280 if enabled libc_iconv; then
6281     check_func_headers iconv.h iconv
6282 elif enabled iconv; then
6283     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6284 fi
6285
6286 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6287
6288 # add some useful compiler flags if supported
6289 check_cflags -Wdeclaration-after-statement
6290 check_cflags -Wall
6291 check_cflags -Wdisabled-optimization
6292 check_cflags -Wpointer-arith
6293 check_cflags -Wredundant-decls
6294 check_cflags -Wwrite-strings
6295 check_cflags -Wtype-limits
6296 check_cflags -Wundef
6297 check_cflags -Wmissing-prototypes
6298 check_cflags -Wno-pointer-to-int-cast
6299 check_cflags -Wstrict-prototypes
6300 check_cflags -Wempty-body
6301
6302 if enabled extra_warnings; then
6303     check_cflags -Wcast-qual
6304     check_cflags -Wextra
6305     check_cflags -Wpedantic
6306 fi
6307
6308 check_disable_warning(){
6309     warning_flag=-W${1#-Wno-}
6310     test_cflags $warning_flag && add_cflags $1
6311 }
6312
6313 check_disable_warning -Wno-parentheses
6314 check_disable_warning -Wno-switch
6315 check_disable_warning -Wno-format-zero-length
6316 check_disable_warning -Wno-pointer-sign
6317 check_disable_warning -Wno-unused-const-variable
6318
6319 check_disable_warning_headers(){
6320     warning_flag=-W${1#-Wno-}
6321     test_cflags $warning_flag && add_cflags_headers $1
6322 }
6323
6324 check_disable_warning_headers -Wno-deprecated-declarations
6325 check_disable_warning_headers -Wno-unused-variable
6326
6327 check_cc <<EOF && enable blocks_extension
6328 void (^block)(void);
6329 EOF
6330
6331 # add some linker flags
6332 check_ldflags -Wl,--warn-common
6333 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6334 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
6335 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
6336 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6337
6338 # add some strip flags
6339 check_stripflags -x
6340
6341 enabled neon_clobber_test &&
6342     check_ldflags -Wl,--wrap,avcodec_open2              \
6343                   -Wl,--wrap,avcodec_decode_audio4      \
6344                   -Wl,--wrap,avcodec_decode_video2      \
6345                   -Wl,--wrap,avcodec_decode_subtitle2   \
6346                   -Wl,--wrap,avcodec_encode_audio2      \
6347                   -Wl,--wrap,avcodec_encode_video2      \
6348                   -Wl,--wrap,avcodec_encode_subtitle    \
6349                   -Wl,--wrap,avcodec_send_packet        \
6350                   -Wl,--wrap,avcodec_receive_packet     \
6351                   -Wl,--wrap,avcodec_send_frame         \
6352                   -Wl,--wrap,avcodec_receive_frame      \
6353                   -Wl,--wrap,swr_convert                \
6354                   -Wl,--wrap,avresample_convert ||
6355     disable neon_clobber_test
6356
6357 enabled xmm_clobber_test &&
6358     check_ldflags -Wl,--wrap,avcodec_open2              \
6359                   -Wl,--wrap,avcodec_decode_audio4      \
6360                   -Wl,--wrap,avcodec_decode_video2      \
6361                   -Wl,--wrap,avcodec_decode_subtitle2   \
6362                   -Wl,--wrap,avcodec_encode_audio2      \
6363                   -Wl,--wrap,avcodec_encode_video2      \
6364                   -Wl,--wrap,avcodec_encode_subtitle    \
6365                   -Wl,--wrap,avcodec_send_packet        \
6366                   -Wl,--wrap,avcodec_receive_packet     \
6367                   -Wl,--wrap,avcodec_send_frame         \
6368                   -Wl,--wrap,avcodec_receive_frame      \
6369                   -Wl,--wrap,swr_convert                \
6370                   -Wl,--wrap,avresample_convert         \
6371                   -Wl,--wrap,sws_scale ||
6372     disable xmm_clobber_test
6373
6374 check_ld "cc" <<EOF && enable proper_dce
6375 extern const int array[512];
6376 static inline int func(void) { return array[0]; }
6377 int main(void) { return 0; }
6378 EOF
6379
6380 if enabled proper_dce; then
6381     echo "X { local: *; };" > $TMPV
6382     if test_ldflags -Wl,${version_script},$TMPV; then
6383         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6384         check_cc <<EOF && enable symver_asm_label
6385 void ff_foo(void) __asm__ ("av_foo@VERSION");
6386 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6387 EOF
6388         check_cc <<EOF && enable symver_gnu_asm
6389 __asm__(".symver ff_foo,av_foo@VERSION");
6390 void ff_foo(void) {}
6391 EOF
6392     fi
6393 fi
6394
6395 if [ -z "$optflags" ]; then
6396     if enabled small; then
6397         optflags=$cflags_size
6398     elif enabled optimizations; then
6399         optflags=$cflags_speed
6400     else
6401         optflags=$cflags_noopt
6402     fi
6403 fi
6404
6405 if [ -z "$nvccflags" ]; then
6406     nvccflags=$nvccflags_default
6407 fi
6408
6409 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6410     nvccflags="$nvccflags -m64"
6411 else
6412     nvccflags="$nvccflags -m32"
6413 fi
6414
6415 check_optflags(){
6416     check_cflags "$@"
6417     enabled lto && check_ldflags "$@"
6418 }
6419
6420 check_optflags $optflags
6421 check_optflags -fno-math-errno
6422 check_optflags -fno-signed-zeros
6423
6424 if enabled lto; then
6425     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6426     check_cflags  -flto
6427     check_ldflags -flto $cpuflags
6428     disable inline_asm_direct_symbol_refs
6429 fi
6430
6431 enabled ftrapv && check_cflags -ftrapv
6432
6433 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6434 int x;
6435 EOF
6436
6437
6438 if enabled icc; then
6439     # Just warnings, no remarks
6440     check_cflags -w1
6441     # -wd: Disable following warnings
6442     # 144, 167, 556: -Wno-pointer-sign
6443     # 188: enumerated type mixed with another type
6444     # 1292: attribute "foo" ignored
6445     # 1419: external declaration in primary source file
6446     # 10006: ignoring unknown option -fno-signed-zeros
6447     # 10148: ignoring unknown option -Wno-parentheses
6448     # 10156: ignoring option '-W'; no argument required
6449     # 13200: No EMMS instruction before call to function
6450     # 13203: No EMMS instruction before return from function
6451     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6452     # 11030: Warning unknown option --as-needed
6453     # 10156: ignoring option '-export'; no argument required
6454     check_ldflags -wd10156,11030
6455     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6456     enable ebp_available
6457     # The test above does not test linking
6458     enabled lto && disable symver_asm_label
6459     if enabled x86_32; then
6460         icc_version=$($cc -dumpversion)
6461         test ${icc_version%%.*} -ge 11 &&
6462             check_cflags -falign-stack=maintain-16-byte ||
6463             disable aligned_stack
6464     fi
6465 elif enabled ccc; then
6466     # disable some annoying warnings
6467     add_cflags -msg_disable bitnotint
6468     add_cflags -msg_disable mixfuncvoid
6469     add_cflags -msg_disable nonstandcast
6470     add_cflags -msg_disable unsupieee
6471 elif enabled gcc; then
6472     check_optflags -fno-tree-vectorize
6473     check_cflags -Werror=format-security
6474     check_cflags -Werror=implicit-function-declaration
6475     check_cflags -Werror=missing-prototypes
6476     check_cflags -Werror=return-type
6477     check_cflags -Werror=vla
6478     check_cflags -Wformat
6479     check_cflags -fdiagnostics-color=auto
6480     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6481 elif enabled llvm_gcc; then
6482     check_cflags -mllvm -stack-alignment=16
6483 elif enabled clang; then
6484     check_cflags -mllvm -stack-alignment=16
6485     check_cflags -mstack-alignment=16
6486     check_cflags -Qunused-arguments
6487     check_cflags -Werror=implicit-function-declaration
6488     check_cflags -Werror=missing-prototypes
6489     check_cflags -Werror=return-type
6490 elif enabled cparser; then
6491     add_cflags -Wno-missing-variable-declarations
6492     add_cflags -Wno-empty-statement
6493 elif enabled armcc; then
6494     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6495     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6496     # 2523: use of inline assembly is deprecated
6497     add_cflags -W${armcc_opt},--diag_suppress=2523
6498     add_cflags -W${armcc_opt},--diag_suppress=1207
6499     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6500     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6501     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6502     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6503 elif enabled tms470; then
6504     add_cflags -pds=824 -pds=837
6505     disable inline_asm
6506 elif enabled pathscale; then
6507     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6508 elif enabled_any msvc icl; then
6509     enabled x86_32 && disable aligned_stack
6510     enabled_all x86_32 debug && add_cflags -Oy-
6511     enabled debug && add_ldflags -debug
6512     enable pragma_deprecated
6513     if enabled icl; then
6514         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6515         # (correctly) on icl 13.x.
6516         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6517             add_cflags -Qansi-alias
6518         # Some inline asm is not compilable in debug
6519         if enabled debug; then
6520             disable ebp_available
6521             disable ebx_available
6522         fi
6523     fi
6524     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6525     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
6526     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6527     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6528     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6529     # MSVC 2013 and newer can handle it fine.
6530     # If this declspec fails, force including stdlib.h before the restrict redefinition
6531     # happens in config.h.
6532     if [ $_restrict != restrict ]; then
6533         check_cc <<EOF || add_cflags -FIstdlib.h
6534 __declspec($_restrict) void* foo(int);
6535 EOF
6536     fi
6537     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6538     # Issue has been fixed in MSVC v19.00.24218.
6539     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6540         check_cflags -d2SSAOptimizer-
6541     # enable utf-8 source processing on VS2015 U2 and newer
6542     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6543         add_cflags -utf-8
6544 fi
6545
6546 for pfx in "" host_; do
6547     varname=${pfx%_}cc_type
6548     eval "type=\$$varname"
6549     if [ "$type" = "msvc" ]; then
6550         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6551 static inline int foo(int a) { return a; }
6552 EOF
6553     fi
6554 done
6555
6556 case $as_type in
6557     clang)
6558         add_asflags -Qunused-arguments
6559     ;;
6560 esac
6561
6562 case $ld_type in
6563     clang)
6564         check_ldflags -Qunused-arguments
6565     ;;
6566 esac
6567
6568 case $target_os in
6569     osf1)
6570         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
6571     ;;
6572 esac
6573
6574 enable frame_thread_encoder
6575
6576 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6577
6578 check_deps $CONFIG_LIST       \
6579            $CONFIG_EXTRA      \
6580            $HAVE_LIST         \
6581            $ALL_COMPONENTS    \
6582
6583 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"
6584
6585
6586 if test $target_os = "haiku"; then
6587     disable memalign
6588     disable posix_memalign
6589 fi
6590
6591 # add_dep lib dep
6592 # -> enable ${lib}_deps_${dep}
6593 # -> add $dep to ${lib}_deps only once
6594 add_dep() {
6595     lib=$1
6596     dep=$2
6597     enabled "${lib}_deps_${dep}" && return 0
6598     enable  "${lib}_deps_${dep}"
6599     prepend "${lib}_deps" $dep
6600 }
6601
6602 # merge deps lib components
6603 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
6604 merge_deps() {
6605     lib=$1
6606     shift
6607     for comp in $*; do
6608         enabled $comp || continue
6609         eval "dep=\"\$${comp}_deps\""
6610         for d in $dep; do
6611             add_dep $lib $d
6612         done
6613     done
6614 }
6615
6616 merge_deps libavfilter $FILTER_LIST
6617
6618 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6619
6620 for thread in $THREADS_LIST; do
6621     if enabled $thread; then
6622         test -n "$thread_type" &&
6623             die "ERROR: Only one thread type must be selected." ||
6624             thread_type="$thread"
6625     fi
6626 done
6627
6628 if disabled stdatomic_h; then
6629     if enabled atomics_gcc; then
6630         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
6631     elif enabled atomics_win32; then
6632         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
6633     elif enabled atomics_suncc; then
6634         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
6635     elif enabled pthreads; then
6636         add_compat atomics/pthread/stdatomic.o
6637         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
6638     else
6639         enabled threads && die "Threading is enabled, but no atomics are available"
6640         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
6641     fi
6642 fi
6643
6644 # Check if requested libraries were found.
6645 for lib in $AUTODETECT_LIBS; do
6646     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
6647 done
6648
6649 enabled zlib && add_cppflags -DZLIB_CONST
6650
6651 # conditional library dependencies, in linking order
6652 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6653 enabled afir_filter         && prepend avfilter_deps "avcodec"
6654 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6655 enabled aresample_filter    && prepend avfilter_deps "swresample"
6656 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6657 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
6658 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
6659 enabled elbg_filter         && prepend avfilter_deps "avcodec"
6660 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
6661 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
6662 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
6663 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
6664 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
6665 enabled pan_filter          && prepend avfilter_deps "swresample"
6666 enabled pp_filter           && prepend avfilter_deps "postproc"
6667 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
6668 enabled resample_filter && prepend avfilter_deps "avresample"
6669 enabled sab_filter          && prepend avfilter_deps "swscale"
6670 enabled scale_filter    && prepend avfilter_deps "swscale"
6671 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
6672 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
6673 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
6674 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
6675 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
6676 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
6677 enabled smartblur_filter    && prepend avfilter_deps "swscale"
6678 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
6679 enabled spp_filter          && prepend avfilter_deps "avcodec"
6680 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
6681 enabled uspp_filter         && prepend avfilter_deps "avcodec"
6682 enabled zoompan_filter      && prepend avfilter_deps "swscale"
6683
6684 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
6685
6686 enabled opus_decoder    && prepend avcodec_deps "swresample"
6687
6688 expand_deps(){
6689     lib_deps=${1}_deps
6690     eval "deps=\$$lib_deps"
6691     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
6692     unique $lib_deps
6693 }
6694
6695 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
6696 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
6697
6698 map 'expand_deps $v' $LIBRARY_LIST
6699
6700 license="LGPL version 2.1 or later"
6701 if enabled nonfree; then
6702     license="nonfree and unredistributable"
6703 elif enabled gplv3; then
6704     license="GPL version 3 or later"
6705 elif enabled lgplv3; then
6706     license="LGPL version 3 or later"
6707 elif enabled gpl; then
6708     license="GPL version 2 or later"
6709 fi
6710
6711 if test "$quiet" != "yes"; then
6712
6713 echo "install prefix            $prefix"
6714 echo "source path               $source_path"
6715 echo "C compiler                $cc"
6716 echo "C library                 $libc_type"
6717 if test "$host_cc" != "$cc"; then
6718     echo "host C compiler           $host_cc"
6719     echo "host C library            $host_libc_type"
6720 fi
6721 echo "ARCH                      $arch ($cpu)"
6722 if test "$build_suffix" != ""; then
6723     echo "build suffix              $build_suffix"
6724 fi
6725 if test "$progs_suffix" != ""; then
6726     echo "progs suffix              $progs_suffix"
6727 fi
6728 if test "$extra_version" != ""; then
6729     echo "version string suffix     $extra_version"
6730 fi
6731 echo "big-endian                ${bigendian-no}"
6732 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6733 if enabled x86; then
6734     echo "standalone assembly       ${x86asm-no}"
6735     echo "x86 assembler             ${x86asmexe}"
6736     echo "MMX enabled               ${mmx-no}"
6737     echo "MMXEXT enabled            ${mmxext-no}"
6738     echo "3DNow! enabled            ${amd3dnow-no}"
6739     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6740     echo "SSE enabled               ${sse-no}"
6741     echo "SSSE3 enabled             ${ssse3-no}"
6742     echo "AESNI enabled             ${aesni-no}"
6743     echo "AVX enabled               ${avx-no}"
6744     echo "AVX2 enabled              ${avx2-no}"
6745     echo "XOP enabled               ${xop-no}"
6746     echo "FMA3 enabled              ${fma3-no}"
6747     echo "FMA4 enabled              ${fma4-no}"
6748     echo "i686 features enabled     ${i686-no}"
6749     echo "CMOV is fast              ${fast_cmov-no}"
6750     echo "EBX available             ${ebx_available-no}"
6751     echo "EBP available             ${ebp_available-no}"
6752 fi
6753 if enabled aarch64; then
6754     echo "NEON enabled              ${neon-no}"
6755     echo "VFP enabled               ${vfp-no}"
6756 fi
6757 if enabled arm; then
6758     echo "ARMv5TE enabled           ${armv5te-no}"
6759     echo "ARMv6 enabled             ${armv6-no}"
6760     echo "ARMv6T2 enabled           ${armv6t2-no}"
6761     echo "VFP enabled               ${vfp-no}"
6762     echo "NEON enabled              ${neon-no}"
6763     echo "THUMB enabled             ${thumb-no}"
6764 fi
6765 if enabled mips; then
6766     echo "MIPS FPU enabled          ${mipsfpu-no}"
6767     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
6768     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6769     echo "MIPS MSA enabled          ${msa-no}"
6770     echo "LOONGSON MMI enabled      ${mmi-no}"
6771 fi
6772 if enabled ppc; then
6773     echo "AltiVec enabled           ${altivec-no}"
6774     echo "VSX enabled               ${vsx-no}"
6775     echo "POWER8 enabled            ${power8-no}"
6776     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6777     echo "dcbzl available           ${dcbzl-no}"
6778 fi
6779 echo "debug symbols             ${debug-no}"
6780 echo "strip symbols             ${stripping-no}"
6781 echo "optimize for size         ${small-no}"
6782 echo "optimizations             ${optimizations-no}"
6783 echo "static                    ${static-no}"
6784 echo "shared                    ${shared-no}"
6785 echo "postprocessing support    ${postproc-no}"
6786 echo "network support           ${network-no}"
6787 echo "threading support         ${thread_type-no}"
6788 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6789 echo "texi2html enabled         ${texi2html-no}"
6790 echo "perl enabled              ${perl-no}"
6791 echo "pod2man enabled           ${pod2man-no}"
6792 echo "makeinfo enabled          ${makeinfo-no}"
6793 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6794 test -n "$random_seed" &&
6795     echo "random seed               ${random_seed}"
6796 echo
6797
6798 echo "External libraries:"
6799 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6800 echo
6801
6802 echo "External libraries providing hardware acceleration:"
6803 print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns
6804 echo
6805
6806 echo "Libraries:"
6807 print_enabled '' $LIBRARY_LIST | print_in_columns
6808 echo
6809
6810 echo "Programs:"
6811 print_enabled '' $PROGRAM_LIST | print_in_columns
6812 echo
6813
6814 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6815     echo "Enabled ${type}s:"
6816     eval list=\$$(toupper $type)_LIST
6817     print_enabled '_*' $list | print_in_columns
6818     echo
6819 done
6820
6821 if test -n "$ignore_tests"; then
6822     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
6823     echo "Ignored FATE tests:"
6824     echo $ignore_tests | print_in_columns
6825     echo
6826 fi
6827
6828 echo "License: $license"
6829
6830 echo "Creating configuration files ..."
6831
6832 fi # test "$quiet" != "yes"
6833
6834 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6835
6836 enabled stripping || strip="echo skipping strip"
6837
6838 config_files="$TMPH ffbuild/config.mak doc/config.texi"
6839
6840 cat > ffbuild/config.mak <<EOF
6841 # Automatically generated by configure - do not modify!
6842 ifndef FFMPEG_CONFIG_MAK
6843 FFMPEG_CONFIG_MAK=1
6844 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6845 prefix=$prefix
6846 LIBDIR=\$(DESTDIR)$libdir
6847 SHLIBDIR=\$(DESTDIR)$shlibdir
6848 INCDIR=\$(DESTDIR)$incdir
6849 BINDIR=\$(DESTDIR)$bindir
6850 DATADIR=\$(DESTDIR)$datadir
6851 DOCDIR=\$(DESTDIR)$docdir
6852 MANDIR=\$(DESTDIR)$mandir
6853 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6854 INSTALL_NAME_DIR=$install_name_dir
6855 SRC_PATH=$source_path
6856 SRC_LINK=$source_link
6857 ifndef MAIN_MAKEFILE
6858 SRC_PATH:=\$(SRC_PATH:.%=..%)
6859 endif
6860 CC_IDENT=$cc_ident
6861 ARCH=$arch
6862 INTRINSICS=$intrinsics
6863 CC=$cc
6864 CXX=$cxx
6865 AS=$as
6866 OBJCC=$objcc
6867 LD=$ld
6868 DEPCC=$dep_cc
6869 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6870 DEPAS=$as
6871 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6872 X86ASM=$x86asmexe
6873 DEPX86ASM=$x86asmexe
6874 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
6875 AR=$ar
6876 ARFLAGS=$arflags
6877 AR_O=$ar_o
6878 RANLIB=$ranlib
6879 STRIP=$strip
6880 NVCC=$nvcc
6881 CP=cp -p
6882 LN_S=$ln_s
6883 CPPFLAGS=$CPPFLAGS
6884 CFLAGS=$CFLAGS
6885 CXXFLAGS=$CXXFLAGS
6886 OBJCFLAGS=$OBJCFLAGS
6887 ASFLAGS=$ASFLAGS
6888 NVCCFLAGS=$nvccflags
6889 AS_C=$AS_C
6890 AS_O=$AS_O
6891 OBJCC_C=$OBJCC_C
6892 OBJCC_E=$OBJCC_E
6893 OBJCC_O=$OBJCC_O
6894 CC_C=$CC_C
6895 CC_E=$CC_E
6896 CC_O=$CC_O
6897 CXX_C=$CXX_C
6898 CXX_O=$CXX_O
6899 NVCC_C=$NVCC_C
6900 NVCC_O=$NVCC_O
6901 LD_O=$LD_O
6902 X86ASM_O=$X86ASM_O
6903 LD_LIB=$LD_LIB
6904 LD_PATH=$LD_PATH
6905 DLLTOOL=$dlltool
6906 WINDRES=$windres
6907 DEPWINDRES=$dep_cc
6908 DOXYGEN=$doxygen
6909 LDFLAGS=$LDFLAGS
6910 LDEXEFLAGS=$LDEXEFLAGS
6911 LDLIBFLAGS=$LDLIBFLAGS
6912 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6913 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6914 X86ASMFLAGS=$X86ASMFLAGS
6915 BUILDSUF=$build_suffix
6916 PROGSSUF=$progs_suffix
6917 FULLNAME=$FULLNAME
6918 LIBPREF=$LIBPREF
6919 LIBSUF=$LIBSUF
6920 LIBNAME=$LIBNAME
6921 SLIBPREF=$SLIBPREF
6922 SLIBSUF=$SLIBSUF
6923 EXESUF=$EXESUF
6924 EXTRA_VERSION=$extra_version
6925 CCDEP=$CCDEP
6926 CXXDEP=$CXXDEP
6927 CCDEP_FLAGS=$CCDEP_FLAGS
6928 ASDEP=$ASDEP
6929 ASDEP_FLAGS=$ASDEP_FLAGS
6930 X86ASMDEP=$X86ASMDEP
6931 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
6932 CC_DEPFLAGS=$CC_DEPFLAGS
6933 AS_DEPFLAGS=$AS_DEPFLAGS
6934 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
6935 HOSTCC=$host_cc
6936 HOSTLD=$host_ld
6937 HOSTCFLAGS=$host_cflags
6938 HOSTCPPFLAGS=$host_cppflags
6939 HOSTEXESUF=$HOSTEXESUF
6940 HOSTLDFLAGS=$host_ldflags
6941 HOSTEXTRALIBS=$host_extralibs
6942 DEPHOSTCC=$host_cc
6943 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6944 HOSTCCDEP=$HOSTCCDEP
6945 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6946 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6947 HOSTCC_C=$HOSTCC_C
6948 HOSTCC_O=$HOSTCC_O
6949 HOSTLD_O=$HOSTLD_O
6950 TARGET_EXEC=$target_exec $target_exec_args
6951 TARGET_PATH=$target_path
6952 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6953 CFLAGS-ffplay=${sdl2_cflags}
6954 CFLAGS_HEADERS=$CFLAGS_HEADERS
6955 ZLIB=$($ldflags_filter -lz)
6956 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6957 EXTRALIBS=$extralibs
6958 COMPAT_OBJS=$compat_objs
6959 INSTALL=$install
6960 LIBTARGET=${LIBTARGET}
6961 SLIBNAME=${SLIBNAME}
6962 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6963 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6964 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6965 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6966 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6967 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6968 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6969 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6970 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
6971 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6972 NOREDZONE_FLAGS=$noredzone_flags
6973 LIBFUZZER_PATH=$libfuzzer_path
6974 IGNORE_TESTS=$ignore_tests
6975 EOF
6976
6977 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
6978
6979 print_program_extralibs(){
6980     eval "program_extralibs=\$${1}_extralibs"
6981     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak
6982 }
6983
6984 map 'print_program_extralibs $v' $PROGRAM_LIST
6985
6986 cat > $TMPH <<EOF
6987 /* Automatically generated by configure - do not modify! */
6988 #ifndef FFMPEG_CONFIG_H
6989 #define FFMPEG_CONFIG_H
6990 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6991 #define FFMPEG_LICENSE "$(c_escape $license)"
6992 #define CONFIG_THIS_YEAR 2017
6993 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6994 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6995 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6996 #define av_restrict $_restrict
6997 #define EXTERN_PREFIX "${extern_prefix}"
6998 #define EXTERN_ASM ${extern_prefix}
6999 #define BUILDSUF "$build_suffix"
7000 #define SLIBSUF "$SLIBSUF"
7001 #define HAVE_MMX2 HAVE_MMXEXT
7002 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7003 EOF
7004
7005 test -n "$assert_level" &&
7006     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7007
7008 test -n "$malloc_prefix" &&
7009     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7010
7011 if enabled x86asm; then
7012     append config_files $TMPASM
7013     printf '' >$TMPASM
7014 fi
7015
7016 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7017
7018
7019 mkdir -p doc
7020 mkdir -p tests
7021 mkdir -p tests/api
7022 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7023
7024 print_config ARCH_   "$config_files" $ARCH_LIST
7025 print_config HAVE_   "$config_files" $HAVE_LIST
7026 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7027                                      $CONFIG_EXTRA      \
7028                                      $ALL_COMPONENTS    \
7029
7030 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7031 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7032
7033 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7034 cp_if_changed $TMPH config.h
7035 touch ffbuild/.config
7036
7037 enabled x86asm && cp_if_changed $TMPASM config.asm
7038
7039 cat > $TMPH <<EOF
7040 /* Generated by ffconf */
7041 #ifndef AVUTIL_AVCONFIG_H
7042 #define AVUTIL_AVCONFIG_H
7043 EOF
7044
7045 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7046
7047 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7048
7049 cp_if_changed $TMPH libavutil/avconfig.h
7050
7051 # generate the lists of enabled components
7052 print_enabled_components(){
7053     file=$1
7054     struct_name=$2
7055     name=$3
7056     shift 3
7057     echo "static const $struct_name * const $name[] = {" > $TMPH
7058     for c in $*; do
7059         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
7060     done
7061     echo "    NULL };" >> $TMPH
7062     cp_if_changed $TMPH $file
7063 }
7064
7065 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7066 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7067
7068 if test -n "$WARNINGS"; then
7069     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7070     enabled fatal_warnings && exit 1
7071 fi
7072
7073 # Settings for pkg-config files
7074
7075 cat > ffbuild/config.sh <<EOF
7076 # Automatically generated by configure - do not modify!
7077 shared=$shared
7078 build_suffix=$build_suffix
7079 prefix=$prefix
7080 libdir=$libdir
7081 incdir=$incdir
7082 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7083 source_path=${source_path}
7084 LIBPREF=${LIBPREF}
7085 LIBSUF=${LIBSUF}
7086
7087 extralibs_avutil="$LIBRT $LIBM"
7088 extralibs_avcodec="$extralibs"
7089 extralibs_avformat="$extralibs"
7090 extralibs_avdevice="$extralibs"
7091 extralibs_avfilter="$extralibs"
7092 extralibs_avresample="$LIBM"
7093 extralibs_postproc=""
7094 extralibs_swscale="$LIBM"
7095 extralibs_swresample="$LIBM $LIBSOXR"
7096 EOF
7097
7098 for lib in $LIBRARY_LIST; do
7099     lib_deps="$(eval echo \$${lib}_deps)"
7100     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh
7101 done