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 check_deps(){
 736     for cfg; do
 737         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 738         disabled ${cfg}_checking && continue
 739         enable ${cfg}_checking
 740
 741         eval dep_all="\$${cfg}_deps"
 742         eval dep_any="\$${cfg}_deps_any"
 743         eval dep_con="\$${cfg}_conflict"
 744         eval dep_sel="\$${cfg}_select"
 745         eval dep_sgs="\$${cfg}_suggest"
 746         eval dep_ifa="\$${cfg}_if"
 747         eval dep_ifn="\$${cfg}_if_any"
 748
 749         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
 750         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 751         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
 752
 753         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 754         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 755         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
 756         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
 757         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
 758         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
 759
 760         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 761
 762         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 763             # filter out library deps, these do not belong in extralibs
 764             is_in $dep $LIBRARY_LIST && continue
 765             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 766         done
 767
 768         disable ${cfg}_checking
 769     done
 770 }
 771
 772 print_config(){
 773     pfx=$1
 774     files=$2
 775     shift 2
 776     map 'eval echo "$v \${$v:-no}"' "$@" |
 777     awk "BEGIN { split(\"$files\", files) }
 778         {
 779             c = \"$pfx\" toupper(\$1);
 780             v = \$2;
 781             sub(/yes/, 1, v);
 782             sub(/no/,  0, v);
 783             for (f in files) {
 784                 file = files[f];
 785                 if (file ~ /\\.h\$/) {
 786                     printf(\"#define %s %d\\n\", c, v) >>file;
 787                 } else if (file ~ /\\.asm\$/) {
 788                     printf(\"%%define %s %d\\n\", c, v) >>file;
 789                 } else if (file ~ /\\.mak\$/) {
 790                     n = -v ? \"\" : \"!\";
 791                     printf(\"%s%s=yes\\n\", n, c) >>file;
 792                 } else if (file ~ /\\.texi\$/) {
 793                     pre = -v ? \"\" : \"@c \";
 794                     yesno = \$2;
 795                     c2 = tolower(c);
 796                     gsub(/_/, \"-\", c2);
 797                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 798                 }
 799             }
 800         }"
 801 }
 802
 803 print_enabled(){
 804     suf=$1
 805     shift
 806     for v; do
 807         enabled $v && printf "%s\n" ${v%$suf}
 808     done
 809 }
 810
 811 append(){
 812     var=$1
 813     shift
 814     eval "$var=\"\$$var $*\""
 815 }
 816
 817 prepend(){
 818     var=$1
 819     shift
 820     eval "$var=\"$* \$$var\""
 821 }
 822
 823 unique(){
 824     var=$1
 825     uniq_list=""
 826     for tok in $(eval echo \$$var); do
 827         uniq_list="$(filter_out $tok $uniq_list) $tok"
 828     done
 829     eval "$var=\"${uniq_list}\""
 830 }
 831
 832 resolve(){
 833     var=$1
 834     tmpvar=
 835     for entry in $(eval echo \$$var); do
 836         tmpvar="$tmpvar $(eval echo \$${entry})"
 837     done
 838     eval "$var=\"${tmpvar}\""
 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 &&
1138         enable $name && eval ${name}_extralibs='"-framework $framework"'
1139 }
1140
1141 check_func(){
1142     log check_func "$@"
1143     func=$1
1144     shift
1145     disable $func
1146     check_ld "cc" "$@" <<EOF && enable $func
1147 extern int $func();
1148 int main(void){ $func(); }
1149 EOF
1150 }
1151
1152 check_complexfunc(){
1153     log check_complexfunc "$@"
1154     func=$1
1155     narg=$2
1156     shift 2
1157     test $narg = 2 && args="f, g" || args="f * I"
1158     disable $func
1159     check_ld "cc" "$@" <<EOF && enable $func
1160 #include <complex.h>
1161 #include <math.h>
1162 float foo(complex float f, complex float g) { return $func($args); }
1163 int main(void){ return (int) foo; }
1164 EOF
1165 }
1166
1167 check_mathfunc(){
1168     log check_mathfunc "$@"
1169     func=$1
1170     narg=$2
1171     shift 2
1172     test $narg = 2 && args="f, g" || args="f"
1173     disable $func
1174     check_ld "cc" "$@" <<EOF && enable $func
1175 #include <math.h>
1176 float foo(float f, float g) { return $func($args); }
1177 int main(void){ return (int) foo; }
1178 EOF
1179 }
1180
1181 check_func_headers(){
1182     log check_func_headers "$@"
1183     headers=$1
1184     funcs=$2
1185     shift 2
1186     {
1187         for hdr in $headers; do
1188             print_include $hdr
1189         done
1190         echo "#include <stdint.h>"
1191         for func in $funcs; do
1192             echo "long check_$func(void) { return (long) $func; }"
1193         done
1194         echo "int main(void) { int ret = 0;"
1195         # LTO could optimize out the test functions without this
1196         for func in $funcs; do
1197             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1198         done
1199         echo "return ret; }"
1200     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1201 }
1202
1203 check_class_headers_cpp(){
1204     log check_class_headers_cpp "$@"
1205     headers=$1
1206     classes=$2
1207     shift 2
1208     {
1209         for hdr in $headers; do
1210             echo "#include <$hdr>"
1211         done
1212         echo "int main(void) { "
1213         i=1
1214         for class in $classes; do
1215             echo "$class obj$i;"
1216             i=$(expr $i + 1)
1217         done
1218         echo "return 0; }"
1219     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1220 }
1221
1222 check_cpp_condition(){
1223     log check_cpp_condition "$@"
1224     header=$1
1225     condition=$2
1226     shift 2
1227     check_cpp "$@" <<EOF
1228 #include <$header>
1229 #if !($condition)
1230 #error "unsatisfied condition: $condition"
1231 #endif
1232 EOF
1233 }
1234
1235 test_cflags_cc(){
1236     log test_cflags_cc "$@"
1237     flags=$1
1238     header=$2
1239     condition=$3
1240     shift 3
1241     set -- $($cflags_filter "$flags")
1242     check_cc "$@" <<EOF
1243 #include <$header>
1244 #if !($condition)
1245 #error "unsatisfied condition: $condition"
1246 #endif
1247 EOF
1248 }
1249
1250 check_lib(){
1251     log check_lib "$@"
1252     name="$1"
1253     headers="$2"
1254     funcs="$3"
1255     shift 3
1256     disable $name
1257     check_func_headers "$headers" "$funcs" "$@" &&
1258         enable $name && eval ${name}_extralibs="\$@"
1259 }
1260
1261 check_lib_cpp(){
1262     log check_lib_cpp "$@"
1263     name="$1"
1264     headers="$2"
1265     classes="$3"
1266     shift 3
1267     disable $name
1268     check_class_headers_cpp "$headers" "$classes" "$@" &&
1269         enable $name && eval ${name}_extralibs="\$@"
1270 }
1271
1272 check_pkg_config(){
1273     log check_pkg_config "$@"
1274     name="$1"
1275     pkg_version="$2"
1276     pkg="${2%% *}"
1277     headers="$3"
1278     funcs="$4"
1279     shift 4
1280     disable $name
1281     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1282     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1283     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1284     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1285         enable $name &&
1286         set_safe "${name}_cflags"    $pkg_cflags &&
1287         set_safe "${name}_extralibs" $pkg_libs
1288 }
1289
1290 check_exec(){
1291     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1292 }
1293
1294 check_exec_crash(){
1295     log check_exec_crash "$@"
1296     code=$(cat)
1297
1298     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1299     # are safe but may not be available everywhere.  Thus we use
1300     # raise(SIGTERM) instead.  The check is run in a subshell so we
1301     # can redirect the "Terminated" message from the shell.  SIGBUS
1302     # is not defined by standard C so it is used conditionally.
1303
1304     (check_exec "$@") >> $logfile 2>&1 <<EOF
1305 #include <signal.h>
1306 static void sighandler(int sig){
1307     raise(SIGTERM);
1308 }
1309 int foo(void){
1310     $code
1311 }
1312 int (*func_ptr)(void) = foo;
1313 int main(void){
1314     signal(SIGILL, sighandler);
1315     signal(SIGFPE, sighandler);
1316     signal(SIGSEGV, sighandler);
1317 #ifdef SIGBUS
1318     signal(SIGBUS, sighandler);
1319 #endif
1320     return func_ptr();
1321 }
1322 EOF
1323 }
1324
1325 check_type(){
1326     log check_type "$@"
1327     headers=$1
1328     type=$2
1329     shift 2
1330     disable_safe "$type"
1331     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1332 }
1333
1334 check_struct(){
1335     log check_struct "$@"
1336     headers=$1
1337     struct=$2
1338     member=$3
1339     shift 3
1340     disable_safe "${struct}_${member}"
1341     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1342         enable_safe "${struct}_${member}"
1343 }
1344
1345 check_builtin(){
1346     log check_builtin "$@"
1347     name=$1
1348     headers=$2
1349     builtin=$3
1350     shift 3
1351     disable "$name"
1352     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1353 }
1354
1355 check_compile_assert(){
1356     log check_compile_assert "$@"
1357     name=$1
1358     headers=$2
1359     condition=$3
1360     shift 3
1361     disable "$name"
1362     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1363 }
1364
1365 require(){
1366     log require "$@"
1367     name_version="$1"
1368     name="${1%% *}"
1369     headers="$2"
1370     func="$3"
1371     shift 3
1372     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1373 }
1374
1375 require_cpp(){
1376     name="$1"
1377     headers="$2"
1378     classes="$3"
1379     shift 3
1380     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1381 }
1382
1383 require_header(){
1384     log require "$@"
1385     header="$1"
1386     shift
1387     check_header "$header" "$@" || die "ERROR: $header header not found"
1388 }
1389
1390 require_cpp_condition(){
1391     log require "$@"
1392     header="$1"
1393     condition="$2"
1394     shift 2
1395     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1396 }
1397
1398 use_pkg_config(){
1399     log use_pkg_config "$@"
1400     name="$1"
1401     check_pkg_config "$@" || return 1
1402     add_cflags    $(get_safe "${name}_cflags")
1403 }
1404
1405 require_pkg_config(){
1406     log require_pkg_config "$@"
1407     pkg_version="$2"
1408     use_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1409 }
1410
1411 hostcc_e(){
1412     eval printf '%s\\n' $HOSTCC_E
1413 }
1414
1415 hostcc_o(){
1416     eval printf '%s\\n' $HOSTCC_O
1417 }
1418
1419 check_host_cc(){
1420     log check_host_cc "$@"
1421     cat > $TMPC
1422     log_file $TMPC
1423     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1424 }
1425
1426 check_host_cpp(){
1427     log check_host_cpp "$@"
1428     cat > $TMPC
1429     log_file $TMPC
1430     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1431 }
1432
1433 check_host_cppflags(){
1434     log check_host_cppflags "$@"
1435     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1436 #include <stdlib.h>
1437 EOF
1438 }
1439
1440 check_host_cflags(){
1441     log check_host_cflags "$@"
1442     set -- $($host_cflags_filter "$@")
1443     check_host_cc "$@" <<EOF && append host_cflags "$@"
1444 int x;
1445 EOF
1446 }
1447
1448 check_host_cpp_condition(){
1449     log check_host_cpp_condition "$@"
1450     header=$1
1451     condition=$2
1452     shift 2
1453     check_host_cpp "$@" <<EOF
1454 #include <$header>
1455 #if !($condition)
1456 #error "unsatisfied condition: $condition"
1457 #endif
1458 EOF
1459 }
1460
1461 cp_if_changed(){
1462     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1463     mkdir -p "$(dirname $2)"
1464     cp -f "$1" "$2"
1465 }
1466
1467 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1468 # system-dependent things.
1469
1470 AVCODEC_COMPONENTS="
1471     bsfs
1472     decoders
1473     encoders
1474     hwaccels
1475     parsers
1476 "
1477
1478 AVDEVICE_COMPONENTS="
1479     indevs
1480     outdevs
1481 "
1482
1483 AVFILTER_COMPONENTS="
1484     filters
1485 "
1486
1487 AVFORMAT_COMPONENTS="
1488     demuxers
1489     muxers
1490     protocols
1491 "
1492
1493 AVRESAMPLE_COMPONENTS=""
1494
1495 AVUTIL_COMPONENTS=""
1496
1497 COMPONENT_LIST="
1498     $AVCODEC_COMPONENTS
1499     $AVDEVICE_COMPONENTS
1500     $AVFILTER_COMPONENTS
1501     $AVFORMAT_COMPONENTS
1502     $AVRESAMPLE_COMPONENTS
1503     $AVUTIL_COMPONENTS
1504 "
1505
1506 EXAMPLE_LIST="
1507     avio_dir_cmd_example
1508     avio_reading_example
1509     decode_audio_example
1510     decode_video_example
1511     demuxing_decoding_example
1512     encode_audio_example
1513     encode_video_example
1514     extract_mvs_example
1515     filter_audio_example
1516     filtering_audio_example
1517     filtering_video_example
1518     http_multiclient_example
1519     hw_decode_example
1520     metadata_example
1521     muxing_example
1522     qsvdec_example
1523     remuxing_example
1524     resampling_audio_example
1525     scaling_video_example
1526     transcode_aac_example
1527     transcoding_example
1528 "
1529
1530 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1531     alsa
1532     appkit
1533     avfoundation
1534     bzlib
1535     coreimage
1536     iconv
1537     jack
1538     libxcb
1539     libxcb_shm
1540     libxcb_shape
1541     libxcb_xfixes
1542     lzma
1543     schannel
1544     sdl2
1545     securetransport
1546     sndio
1547     xlib
1548     zlib
1549 "
1550
1551 EXTERNAL_LIBRARY_GPL_LIST="
1552     avisynth
1553     frei0r
1554     libcdio
1555     librubberband
1556     libvidstab
1557     libx264
1558     libx265
1559     libxavs
1560     libxvid
1561 "
1562
1563 EXTERNAL_LIBRARY_NONFREE_LIST="
1564     decklink
1565     libndi_newtek
1566     libfdk_aac
1567     openssl
1568 "
1569
1570 EXTERNAL_LIBRARY_VERSION3_LIST="
1571     gmp
1572     libopencore_amrnb
1573     libopencore_amrwb
1574     libvo_amrwbenc
1575     rkmpp
1576 "
1577
1578 EXTERNAL_LIBRARY_GPLV3_LIST="
1579     libsmbclient
1580 "
1581
1582 EXTERNAL_LIBRARY_LIST="
1583     $EXTERNAL_LIBRARY_GPL_LIST
1584     $EXTERNAL_LIBRARY_NONFREE_LIST
1585     $EXTERNAL_LIBRARY_VERSION3_LIST
1586     $EXTERNAL_LIBRARY_GPLV3_LIST
1587     chromaprint
1588     gcrypt
1589     gnutls
1590     jni
1591     ladspa
1592     libass
1593     libbluray
1594     libbs2b
1595     libcaca
1596     libcelt
1597     libdc1394
1598     libdrm
1599     libflite
1600     libfontconfig
1601     libfreetype
1602     libfribidi
1603     libgme
1604     libgsm
1605     libiec61883
1606     libilbc
1607     libkvazaar
1608     libmodplug
1609     libmp3lame
1610     libmysofa
1611     libopencv
1612     libopenh264
1613     libopenjpeg
1614     libopenmpt
1615     libopus
1616     libpulse
1617     librsvg
1618     librtmp
1619     libshine
1620     libsmbclient
1621     libsnappy
1622     libsoxr
1623     libspeex
1624     libssh
1625     libtesseract
1626     libtheora
1627     libtwolame
1628     libv4l2
1629     libvmaf
1630     libvorbis
1631     libvpx
1632     libwavpack
1633     libwebp
1634     libxml2
1635     libzimg
1636     libzmq
1637     libzvbi
1638     mediacodec
1639     openal
1640     opencl
1641     opengl
1642 "
1643
1644 HWACCEL_AUTODETECT_LIBRARY_LIST="
1645     audiotoolbox
1646     crystalhd
1647     cuda
1648     cuvid
1649     d3d11va
1650     dxva2
1651     nvenc
1652     vaapi
1653     vda
1654     vdpau
1655     videotoolbox
1656     v4l2_m2m
1657     xvmc
1658 "
1659
1660 # catchall list of things that require external libs to link
1661 EXTRALIBS_LIST="
1662     cpu_init
1663     cws2fws
1664 "
1665
1666 HWACCEL_LIBRARY_NONFREE_LIST="
1667     cuda_sdk
1668     libnpp
1669 "
1670
1671 HWACCEL_LIBRARY_LIST="
1672     $HWACCEL_LIBRARY_NONFREE_LIST
1673     libmfx
1674     mmal
1675     omx
1676 "
1677
1678 DOCUMENT_LIST="
1679     doc
1680     htmlpages
1681     manpages
1682     podpages
1683     txtpages
1684 "
1685
1686 FEATURE_LIST="
1687     ftrapv
1688     gray
1689     hardcoded_tables
1690     omx_rpi
1691     runtime_cpudetect
1692     safe_bitstream_reader
1693     shared
1694     small
1695     static
1696     swscale_alpha
1697 "
1698
1699 LIBRARY_LIST="
1700     avcodec
1701     avdevice
1702     avfilter
1703     avformat
1704     avresample
1705     avutil
1706     postproc
1707     swresample
1708     swscale
1709 "
1710
1711 LICENSE_LIST="
1712     gpl
1713     nonfree
1714     version3
1715 "
1716
1717 PROGRAM_LIST="
1718     ffplay
1719     ffprobe
1720     ffserver
1721     ffmpeg
1722 "
1723
1724 SUBSYSTEM_LIST="
1725     dct
1726     dwt
1727     error_resilience
1728     faan
1729     fast_unaligned
1730     fft
1731     lsp
1732     lzo
1733     mdct
1734     pixelutils
1735     network
1736     rdft
1737 "
1738
1739 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1740 CONFIG_LIST="
1741     $DOCUMENT_LIST
1742     $EXAMPLE_LIST
1743     $EXTERNAL_LIBRARY_LIST
1744     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1745     $HWACCEL_LIBRARY_LIST
1746     $HWACCEL_AUTODETECT_LIBRARY_LIST
1747     $FEATURE_LIST
1748     $LICENSE_LIST
1749     $LIBRARY_LIST
1750     $PROGRAM_LIST
1751     $SUBSYSTEM_LIST
1752     autodetect
1753     fontconfig
1754     linux_perf
1755     memory_poisoning
1756     neon_clobber_test
1757     ossfuzz
1758     pic
1759     thumb
1760     valgrind_backtrace
1761     xmm_clobber_test
1762     $COMPONENT_LIST
1763 "
1764
1765 THREADS_LIST="
1766     pthreads
1767     os2threads
1768     w32threads
1769 "
1770
1771 ATOMICS_LIST="
1772     atomics_gcc
1773     atomics_suncc
1774     atomics_win32
1775 "
1776
1777 AUTODETECT_LIBS="
1778     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1779     $HWACCEL_AUTODETECT_LIBRARY_LIST
1780     $THREADS_LIST
1781 "
1782
1783 ARCH_LIST="
1784     aarch64
1785     alpha
1786     arm
1787     avr32
1788     avr32_ap
1789     avr32_uc
1790     bfin
1791     ia64
1792     m68k
1793     mips
1794     mips64
1795     parisc
1796     ppc
1797     ppc64
1798     s390
1799     sh4
1800     sparc
1801     sparc64
1802     tilegx
1803     tilepro
1804     tomi
1805     x86
1806     x86_32
1807     x86_64
1808 "
1809
1810 ARCH_EXT_LIST_ARM="
1811     armv5te
1812     armv6
1813     armv6t2
1814     armv8
1815     neon
1816     vfp
1817     vfpv3
1818     setend
1819 "
1820
1821 ARCH_EXT_LIST_MIPS="
1822     mipsfpu
1823     mips32r2
1824     mips32r5
1825     mips64r2
1826     mips32r6
1827     mips64r6
1828     mipsdsp
1829     mipsdspr2
1830     msa
1831 "
1832
1833 ARCH_EXT_LIST_LOONGSON="
1834     loongson2
1835     loongson3
1836     mmi
1837 "
1838
1839 ARCH_EXT_LIST_X86_SIMD="
1840     aesni
1841     amd3dnow
1842     amd3dnowext
1843     avx
1844     avx2
1845     fma3
1846     fma4
1847     mmx
1848     mmxext
1849     sse
1850     sse2
1851     sse3
1852     sse4
1853     sse42
1854     ssse3
1855     xop
1856 "
1857
1858 ARCH_EXT_LIST_PPC="
1859     altivec
1860     dcbzl
1861     ldbrx
1862     power8
1863     ppc4xx
1864     vsx
1865 "
1866
1867 ARCH_EXT_LIST_X86="
1868     $ARCH_EXT_LIST_X86_SIMD
1869     cpunop
1870     i686
1871 "
1872
1873 ARCH_EXT_LIST="
1874     $ARCH_EXT_LIST_ARM
1875     $ARCH_EXT_LIST_PPC
1876     $ARCH_EXT_LIST_X86
1877     $ARCH_EXT_LIST_MIPS
1878     $ARCH_EXT_LIST_LOONGSON
1879 "
1880
1881 ARCH_FEATURES="
1882     aligned_stack
1883     fast_64bit
1884     fast_clz
1885     fast_cmov
1886     local_aligned_8
1887     local_aligned_16
1888     local_aligned_32
1889     simd_align_16
1890     simd_align_32
1891 "
1892
1893 BUILTIN_LIST="
1894     atomic_cas_ptr
1895     machine_rw_barrier
1896     MemoryBarrier
1897     mm_empty
1898     rdtsc
1899     sarestart
1900     sem_timedwait
1901     sync_val_compare_and_swap
1902 "
1903 HAVE_LIST_CMDLINE="
1904     inline_asm
1905     symver
1906     x86asm
1907 "
1908
1909 HAVE_LIST_PUB="
1910     bigendian
1911     fast_unaligned
1912 "
1913
1914 HEADERS_LIST="
1915     altivec_h
1916     arpa_inet_h
1917     asm_types_h
1918     cdio_paranoia_h
1919     cdio_paranoia_paranoia_h
1920     cuda_h
1921     d3d11_h
1922     dispatch_dispatch_h
1923     dev_bktr_ioctl_bt848_h
1924     dev_bktr_ioctl_meteor_h
1925     dev_ic_bt8xx_h
1926     dev_video_bktr_ioctl_bt848_h
1927     dev_video_meteor_ioctl_meteor_h
1928     direct_h
1929     dirent_h
1930     dlfcn_h
1931     dxgidebug_h
1932     dxva_h
1933     ES2_gl_h
1934     gsm_h
1935     io_h
1936     mach_mach_time_h
1937     machine_ioctl_bt848_h
1938     machine_ioctl_meteor_h
1939     malloc_h
1940     opencv2_core_core_c_h
1941     OpenGL_gl3_h
1942     poll_h
1943     soundcard_h
1944     stdatomic_h
1945     sys_mman_h
1946     sys_param_h
1947     sys_resource_h
1948     sys_select_h
1949     sys_soundcard_h
1950     sys_time_h
1951     sys_un_h
1952     sys_videoio_h
1953     termios_h
1954     udplite_h
1955     unistd_h
1956     valgrind_valgrind_h
1957     windows_h
1958     winsock2_h
1959 "
1960
1961 INTRINSICS_LIST="
1962     intrinsics_neon
1963 "
1964
1965 COMPLEX_FUNCS="
1966     cabs
1967     cexp
1968 "
1969
1970 MATH_FUNCS="
1971     atanf
1972     atan2f
1973     cbrt
1974     cbrtf
1975     copysign
1976     cosf
1977     erf
1978     exp2
1979     exp2f
1980     expf
1981     hypot
1982     isfinite
1983     isinf
1984     isnan
1985     ldexpf
1986     llrint
1987     llrintf
1988     log2
1989     log2f
1990     log10f
1991     lrint
1992     lrintf
1993     powf
1994     rint
1995     round
1996     roundf
1997     sinf
1998     trunc
1999     truncf
2000 "
2001
2002 SYSTEM_FUNCS="
2003     access
2004     aligned_malloc
2005     arc4random
2006     clock_gettime
2007     closesocket
2008     CommandLineToArgvW
2009     CoTaskMemFree
2010     CryptGenRandom
2011     fcntl
2012     flt_lim
2013     fork
2014     getaddrinfo
2015     gethrtime
2016     getopt
2017     GetProcessAffinityMask
2018     GetProcessMemoryInfo
2019     GetProcessTimes
2020     getrusage
2021     GetSystemTimeAsFileTime
2022     gettimeofday
2023     glob
2024     glXGetProcAddress
2025     gmtime_r
2026     inet_aton
2027     isatty
2028     jack_port_get_latency_range
2029     kbhit
2030     LoadLibrary
2031     localtime_r
2032     lstat
2033     lzo1x_999_compress
2034     mach_absolute_time
2035     MapViewOfFile
2036     memalign
2037     mkstemp
2038     mmap
2039     mprotect
2040     nanosleep
2041     PeekNamedPipe
2042     posix_memalign
2043     pthread_cancel
2044     sched_getaffinity
2045     SetConsoleTextAttribute
2046     SetConsoleCtrlHandler
2047     setmode
2048     setrlimit
2049     Sleep
2050     strerror_r
2051     sysconf
2052     sysctl
2053     usleep
2054     UTGetOSTypeFromString
2055     VirtualAlloc
2056     wglGetProcAddress
2057 "
2058
2059 TOOLCHAIN_FEATURES="
2060     as_dn_directive
2061     as_fpu_directive
2062     as_func
2063     as_object_arch
2064     asm_mod_q
2065     attribute_may_alias
2066     attribute_packed
2067     blocks_extension
2068     ebp_available
2069     ebx_available
2070     gnu_as
2071     gnu_windres
2072     ibm_asm
2073     inline_asm_direct_symbol_refs
2074     inline_asm_labels
2075     inline_asm_nonlocal_labels
2076     pragma_deprecated
2077     rsync_contimeout
2078     symver_asm_label
2079     symver_gnu_asm
2080     vfp_args
2081     xform_asm
2082     xmm_clobbers
2083 "
2084
2085 TYPES_LIST="
2086     CONDITION_VARIABLE_Ptr
2087     kCMVideoCodecType_HEVC
2088     socklen_t
2089     struct_addrinfo
2090     struct_group_source_req
2091     struct_ip_mreq_source
2092     struct_ipv6_mreq
2093     struct_msghdr_msg_flags
2094     struct_pollfd
2095     struct_rusage_ru_maxrss
2096     struct_sctp_event_subscribe
2097     struct_sockaddr_in6
2098     struct_sockaddr_sa_len
2099     struct_sockaddr_storage
2100     struct_stat_st_mtim_tv_nsec
2101     struct_v4l2_frmivalenum_discrete
2102 "
2103
2104 HAVE_LIST="
2105     $ARCH_EXT_LIST
2106     $(add_suffix _external $ARCH_EXT_LIST)
2107     $(add_suffix _inline   $ARCH_EXT_LIST)
2108     $ARCH_FEATURES
2109     $ATOMICS_LIST
2110     $BUILTIN_LIST
2111     $COMPLEX_FUNCS
2112     $HAVE_LIST_CMDLINE
2113     $HAVE_LIST_PUB
2114     $HEADERS_LIST
2115     $INTRINSICS_LIST
2116     $MATH_FUNCS
2117     $SYSTEM_FUNCS
2118     $THREADS_LIST
2119     $TOOLCHAIN_FEATURES
2120     $TYPES_LIST
2121     atomics_native
2122     dos_paths
2123     libc_msvcrt
2124     makeinfo
2125     makeinfo_html
2126     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2127     perl
2128     pod2man
2129     section_data_rel_ro
2130     texi2html
2131     threads
2132     uwp
2133     vaapi_drm
2134     vaapi_x11
2135     vdpau_x11
2136     winrt
2137 "
2138
2139 # options emitted with CONFIG_ prefix but not available on the command line
2140 CONFIG_EXTRA="
2141     aandcttables
2142     ac3dsp
2143     audio_frame_queue
2144     audiodsp
2145     blockdsp
2146     bswapdsp
2147     cabac
2148     cbs
2149     cbs_h264
2150     cbs_h265
2151     cbs_mpeg2
2152     dirac_parse
2153     dvprofile
2154     exif
2155     faandct
2156     faanidct
2157     fdctdsp
2158     flacdsp
2159     fmtconvert
2160     frame_thread_encoder
2161     g722dsp
2162     golomb
2163     gplv3
2164     h263dsp
2165     h264chroma
2166     h264dsp
2167     h264parse
2168     h264pred
2169     h264qpel
2170     hevcparse
2171     hpeldsp
2172     huffman
2173     huffyuvdsp
2174     huffyuvencdsp
2175     idctdsp
2176     iirfilter
2177     mdct15
2178     intrax8
2179     iso_media
2180     ividsp
2181     jpegtables
2182     lgplv3
2183     libx262
2184     llauddsp
2185     llviddsp
2186     llvidencdsp
2187     lpc
2188     lzf
2189     me_cmp
2190     mpeg_er
2191     mpegaudio
2192     mpegaudiodsp
2193     mpegaudioheader
2194     mpegvideo
2195     mpegvideoenc
2196     mss34dsp
2197     pixblockdsp
2198     qpeldsp
2199     qsv
2200     qsvdec
2201     qsvenc
2202     rangecoder
2203     riffdec
2204     riffenc
2205     rtpdec
2206     rtpenc_chain
2207     rv34dsp
2208     sinewin
2209     snappy
2210     srtp
2211     startcode
2212     texturedsp
2213     texturedspenc
2214     tpeldsp
2215     vaapi_1
2216     vaapi_encode
2217     vc1dsp
2218     videodsp
2219     vp3dsp
2220     vp56dsp
2221     vp8dsp
2222     wma_freqs
2223     wmv2dsp
2224 "
2225
2226 CMDLINE_SELECT="
2227     $ARCH_EXT_LIST
2228     $CONFIG_LIST
2229     $HAVE_LIST_CMDLINE
2230     $THREADS_LIST
2231     asm
2232     cross_compile
2233     debug
2234     extra_warnings
2235     logging
2236     lto
2237     optimizations
2238     rpath
2239     stripping
2240 "
2241
2242 PATHS_LIST="
2243     bindir
2244     datadir
2245     docdir
2246     incdir
2247     libdir
2248     mandir
2249     pkgconfigdir
2250     prefix
2251     shlibdir
2252     install_name_dir
2253 "
2254
2255 CMDLINE_SET="
2256     $PATHS_LIST
2257     ar
2258     arch
2259     as
2260     assert_level
2261     build_suffix
2262     cc
2263     objcc
2264     cpu
2265     cross_prefix
2266     custom_allocator
2267     cxx
2268     dep_cc
2269     doxygen
2270     env
2271     extra_version
2272     gas
2273     host_cc
2274     host_cflags
2275     host_extralibs
2276     host_ld
2277     host_ldflags
2278     host_os
2279     ignore_tests
2280     install
2281     ld
2282     ln_s
2283     logfile
2284     malloc_prefix
2285     nm
2286     optflags
2287     nvccflags
2288     pkg_config
2289     pkg_config_flags
2290     progs_suffix
2291     random_seed
2292     ranlib
2293     samples
2294     strip
2295     sws_max_filter_size
2296     sysinclude
2297     sysroot
2298     target_exec
2299     target_os
2300     target_path
2301     target_samples
2302     tempprefix
2303     toolchain
2304     valgrind
2305     x86asmexe
2306 "
2307
2308 CMDLINE_APPEND="
2309     extra_cflags
2310     extra_cxxflags
2311     extra_objcflags
2312     host_cppflags
2313 "
2314
2315 # code dependency declarations
2316
2317 # architecture extensions
2318
2319 armv5te_deps="arm"
2320 armv6_deps="arm"
2321 armv6t2_deps="arm"
2322 armv8_deps="aarch64"
2323 neon_deps_any="aarch64 arm"
2324 intrinsics_neon_deps="neon"
2325 vfp_deps_any="aarch64 arm"
2326 vfpv3_deps="vfp"
2327 setend_deps="arm"
2328
2329 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2330
2331 loongson2_deps="mips"
2332 loongson3_deps="mips"
2333 mipsfpu_deps="mips"
2334 mipsdsp_deps="mips"
2335 mipsdspr2_deps="mips"
2336 mips32r2_deps="mips"
2337 mips32r5_deps="mips"
2338 mips32r6_deps="mips"
2339 mips64r2_deps="mips"
2340 mips64r6_deps="mips"
2341 msa_deps="mipsfpu"
2342 mmi_deps="mips"
2343
2344 altivec_deps="ppc"
2345 dcbzl_deps="ppc"
2346 ldbrx_deps="ppc"
2347 ppc4xx_deps="ppc"
2348 vsx_deps="altivec"
2349 power8_deps="vsx"
2350
2351 cpunop_deps="i686"
2352 x86_64_select="i686"
2353 x86_64_suggest="fast_cmov"
2354
2355 amd3dnow_deps="mmx"
2356 amd3dnowext_deps="amd3dnow"
2357 i686_deps="x86"
2358 mmx_deps="x86"
2359 mmxext_deps="mmx"
2360 sse_deps="mmxext"
2361 sse2_deps="sse"
2362 sse3_deps="sse2"
2363 ssse3_deps="sse3"
2364 sse4_deps="ssse3"
2365 sse42_deps="sse4"
2366 aesni_deps="sse42"
2367 avx_deps="sse42"
2368 xop_deps="avx"
2369 fma3_deps="avx"
2370 fma4_deps="avx"
2371 avx2_deps="avx"
2372
2373 mmx_external_deps="x86asm"
2374 mmx_inline_deps="inline_asm"
2375 mmx_suggest="mmx_external mmx_inline"
2376
2377 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2378     eval dep=\$${ext}_deps
2379     eval ${ext}_external_deps='"${dep}_external"'
2380     eval ${ext}_inline_deps='"${dep}_inline"'
2381     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2382 done
2383
2384 aligned_stack_if_any="aarch64 ppc x86"
2385 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2386 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2387 fast_unaligned_if_any="aarch64 ppc x86"
2388 simd_align_16_if_any="altivec neon sse"
2389 simd_align_32_if_any="avx"
2390
2391 # system capabilities
2392 symver_if_any="symver_asm_label symver_gnu_asm"
2393 valgrind_backtrace_conflict="optimizations"
2394 valgrind_backtrace_deps="valgrind_valgrind_h"
2395
2396 # threading support
2397 atomics_gcc_if="sync_val_compare_and_swap"
2398 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2399 atomics_win32_if="MemoryBarrier"
2400 atomics_native_if_any="$ATOMICS_LIST"
2401 w32threads_deps="atomics_native"
2402 threads_if_any="$THREADS_LIST"
2403
2404 # subsystems
2405 cbs_h264_select="cbs golomb"
2406 cbs_h265_select="cbs golomb"
2407 cbs_mpeg2_select="cbs"
2408 dct_select="rdft"
2409 dirac_parse_select="golomb"
2410 error_resilience_select="me_cmp"
2411 faandct_deps="faan fdctdsp"
2412 faanidct_deps="faan idctdsp"
2413 h264dsp_select="startcode"
2414 hevcparse_select="golomb"
2415 frame_thread_encoder_deps="encoders threads"
2416 intrax8_select="blockdsp idctdsp"
2417 mdct_select="fft"
2418 mdct15_select="fft"
2419 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2420 mpeg_er_select="error_resilience"
2421 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2422 mpegaudiodsp_select="dct"
2423 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2424 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2425 vc1dsp_select="h264chroma qpeldsp startcode"
2426 rdft_select="fft"
2427
2428 # decoders / encoders
2429 aac_decoder_select="mdct15 mdct sinewin"
2430 aac_fixed_decoder_select="mdct sinewin"
2431 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2432 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2433 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2434 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2435 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2436 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2437 adpcm_g722_decoder_select="g722dsp"
2438 adpcm_g722_encoder_select="g722dsp"
2439 aic_decoder_select="golomb idctdsp"
2440 alac_encoder_select="lpc"
2441 als_decoder_select="bswapdsp"
2442 amrnb_decoder_select="lsp"
2443 amrwb_decoder_select="lsp"
2444 amv_decoder_select="sp5x_decoder exif"
2445 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2446 ape_decoder_select="bswapdsp llauddsp"
2447 apng_decoder_select="zlib"
2448 apng_encoder_select="llvidencdsp zlib"
2449 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2450 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2451 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2452 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2453 atrac1_decoder_select="mdct sinewin"
2454 atrac3_decoder_select="mdct"
2455 atrac3p_decoder_select="mdct sinewin"
2456 avrn_decoder_select="exif jpegtables"
2457 bink_decoder_select="blockdsp hpeldsp"
2458 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2459 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2460 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2461 clearvideo_decoder_select="idctdsp"
2462 cllc_decoder_select="bswapdsp"
2463 comfortnoise_encoder_select="lpc"
2464 cook_decoder_select="audiodsp mdct sinewin"
2465 cscd_decoder_select="lzo"
2466 cscd_decoder_suggest="zlib"
2467 dca_decoder_select="mdct"
2468 dds_decoder_select="texturedsp"
2469 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2470 dnxhd_decoder_select="blockdsp idctdsp"
2471 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2472 dolby_e_decoder_select="mdct"
2473 dvvideo_decoder_select="dvprofile idctdsp"
2474 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2475 dxa_decoder_select="zlib"
2476 dxv_decoder_select="lzf texturedsp"
2477 eac3_decoder_select="ac3_decoder"
2478 eac3_encoder_select="ac3_encoder"
2479 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2480 eatgq_decoder_select="aandcttables"
2481 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2482 exr_decoder_select="zlib"
2483 ffv1_decoder_select="rangecoder"
2484 ffv1_encoder_select="rangecoder"
2485 ffvhuff_decoder_select="huffyuv_decoder"
2486 ffvhuff_encoder_select="huffyuv_encoder"
2487 fic_decoder_select="golomb"
2488 flac_decoder_select="flacdsp"
2489 flac_encoder_select="bswapdsp flacdsp lpc"
2490 flashsv2_decoder_select="zlib"
2491 flashsv2_encoder_select="zlib"
2492 flashsv_decoder_select="zlib"
2493 flashsv_encoder_select="zlib"
2494 flv_decoder_select="h263_decoder"
2495 flv_encoder_select="h263_encoder"
2496 fourxm_decoder_select="blockdsp bswapdsp"
2497 fraps_decoder_select="bswapdsp huffman"
2498 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2499 g729_decoder_select="audiodsp"
2500 h261_decoder_select="mpegvideo"
2501 h261_encoder_select="aandcttables mpegvideoenc"
2502 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2503 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2504 h263i_decoder_select="h263_decoder"
2505 h263p_decoder_select="h263_decoder"
2506 h263p_encoder_select="h263_encoder"
2507 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2508 h264_decoder_suggest="error_resilience"
2509 hap_decoder_select="snappy texturedsp"
2510 hap_encoder_deps="libsnappy"
2511 hap_encoder_select="texturedspenc"
2512 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2513 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2514 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2515 iac_decoder_select="imc_decoder"
2516 imc_decoder_select="bswapdsp fft mdct sinewin"
2517 indeo3_decoder_select="hpeldsp"
2518 indeo4_decoder_select="ividsp"
2519 indeo5_decoder_select="ividsp"
2520 interplay_video_decoder_select="hpeldsp"
2521 jpegls_decoder_select="mjpeg_decoder"
2522 jv_decoder_select="blockdsp"
2523 lagarith_decoder_select="llviddsp"
2524 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2525 magicyuv_decoder_select="llviddsp"
2526 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2527 metasound_decoder_select="lsp mdct sinewin"
2528 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2529 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2530 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2531 mjpegb_decoder_select="mjpeg_decoder"
2532 mlp_decoder_select="mlp_parser"
2533 mlp_encoder_select="lpc"
2534 motionpixels_decoder_select="bswapdsp"
2535 mp1_decoder_select="mpegaudio"
2536 mp1float_decoder_select="mpegaudio"
2537 mp2_decoder_select="mpegaudio"
2538 mp2float_decoder_select="mpegaudio"
2539 mp3_decoder_select="mpegaudio"
2540 mp3adu_decoder_select="mpegaudio"
2541 mp3adufloat_decoder_select="mpegaudio"
2542 mp3float_decoder_select="mpegaudio"
2543 mp3on4_decoder_select="mpegaudio"
2544 mp3on4float_decoder_select="mpegaudio"
2545 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2546 mpc8_decoder_select="mpegaudiodsp"
2547 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2548 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2549 mpegvideo_decoder_select="mpegvideo"
2550 mpeg1video_decoder_select="mpegvideo"
2551 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2552 mpeg2video_decoder_select="mpegvideo"
2553 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2554 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2555 mpeg4_encoder_select="h263_encoder"
2556 msa1_decoder_select="mss34dsp"
2557 mscc_decoder_select="zlib"
2558 msmpeg4v1_decoder_select="h263_decoder"
2559 msmpeg4v2_decoder_select="h263_decoder"
2560 msmpeg4v2_encoder_select="h263_encoder"
2561 msmpeg4v3_decoder_select="h263_decoder"
2562 msmpeg4v3_encoder_select="h263_encoder"
2563 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2564 mts2_decoder_select="mss34dsp"
2565 mxpeg_decoder_select="mjpeg_decoder"
2566 nellymoser_decoder_select="mdct sinewin"
2567 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2568 nuv_decoder_select="idctdsp lzo"
2569 on2avc_decoder_select="mdct"
2570 opus_decoder_deps="swresample"
2571 opus_decoder_select="mdct15"
2572 opus_encoder_select="audio_frame_queue mdct15"
2573 png_decoder_select="zlib"
2574 png_encoder_select="llvidencdsp zlib"
2575 prores_decoder_select="blockdsp idctdsp"
2576 prores_encoder_select="fdctdsp"
2577 qcelp_decoder_select="lsp"
2578 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2579 ra_144_decoder_select="audiodsp"
2580 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2581 ralf_decoder_select="golomb"
2582 rawvideo_decoder_select="bswapdsp"
2583 rscc_decoder_select="zlib"
2584 rtjpeg_decoder_select="me_cmp"
2585 rv10_decoder_select="h263_decoder"
2586 rv10_encoder_select="h263_encoder"
2587 rv20_decoder_select="h263_decoder"
2588 rv20_encoder_select="h263_encoder"
2589 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2590 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2591 screenpresso_decoder_select="zlib"
2592 shorten_decoder_select="bswapdsp"
2593 sipr_decoder_select="lsp"
2594 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2595 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2596 sonic_decoder_select="golomb rangecoder"
2597 sonic_encoder_select="golomb rangecoder"
2598 sonic_ls_encoder_select="golomb rangecoder"
2599 sp5x_decoder_select="mjpeg_decoder"
2600 srgc_decoder_select="zlib"
2601 svq1_decoder_select="hpeldsp"
2602 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2603 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2604 svq3_decoder_suggest="zlib"
2605 tak_decoder_select="audiodsp"
2606 tdsc_decoder_select="zlib mjpeg_decoder"
2607 theora_decoder_select="vp3_decoder"
2608 thp_decoder_select="mjpeg_decoder"
2609 tiff_decoder_suggest="zlib lzma"
2610 tiff_encoder_suggest="zlib"
2611 truehd_decoder_select="mlp_parser"
2612 truehd_encoder_select="lpc"
2613 truemotion2_decoder_select="bswapdsp"
2614 truespeech_decoder_select="bswapdsp"
2615 tscc_decoder_select="zlib"
2616 twinvq_decoder_select="mdct lsp sinewin"
2617 txd_decoder_select="texturedsp"
2618 utvideo_decoder_select="bswapdsp llviddsp"
2619 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2620 vble_decoder_select="llviddsp"
2621 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2622 vc1_qsv_decoder_deps="libmfx"
2623 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2624 vc1image_decoder_select="vc1_decoder"
2625 vorbis_decoder_select="mdct"
2626 vorbis_encoder_select="mdct"
2627 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2628 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2629 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2630 vp6a_decoder_select="vp6_decoder"
2631 vp6f_decoder_select="vp6_decoder"
2632 vp7_decoder_select="h264pred videodsp vp8dsp"
2633 vp8_decoder_select="h264pred videodsp vp8dsp"
2634 vp9_decoder_select="videodsp vp9_parser"
2635 webp_decoder_select="vp8_decoder exif"
2636 wmalossless_decoder_select="llauddsp"
2637 wmapro_decoder_select="mdct sinewin wma_freqs"
2638 wmav1_decoder_select="mdct sinewin wma_freqs"
2639 wmav1_encoder_select="mdct sinewin wma_freqs"
2640 wmav2_decoder_select="mdct sinewin wma_freqs"
2641 wmav2_encoder_select="mdct sinewin wma_freqs"
2642 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2643 wmv1_decoder_select="h263_decoder"
2644 wmv1_encoder_select="h263_encoder"
2645 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2646 wmv2_encoder_select="h263_encoder wmv2dsp"
2647 wmv3_decoder_select="vc1_decoder"
2648 wmv3image_decoder_select="wmv3_decoder"
2649 xma1_decoder_select="wmapro_decoder"
2650 xma2_decoder_select="wmapro_decoder"
2651 zerocodec_decoder_select="zlib"
2652 zlib_decoder_select="zlib"
2653 zlib_encoder_select="zlib"
2654 zmbv_decoder_select="zlib"
2655 zmbv_encoder_select="zlib"
2656
2657 # hardware accelerators
2658 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2659 cuda_deps_any="libdl LoadLibrary"
2660 cuvid_deps="cuda"
2661 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2662 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2663 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2664 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2665 vda_deps="vda_framework pthreads corefoundation"
2666 vda_extralibs="-framework QuartzCore"
2667 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2668 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2669 xvmc_deps="X11_extensions_XvMClib_h"
2670
2671 h263_vaapi_hwaccel_deps="vaapi"
2672 h263_vaapi_hwaccel_select="h263_decoder"
2673 h263_videotoolbox_hwaccel_deps="videotoolbox"
2674 h263_videotoolbox_hwaccel_select="h263_decoder"
2675 h264_cuvid_hwaccel_deps="cuda cuvid"
2676 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2677 h264_d3d11va_hwaccel_deps="d3d11va"
2678 h264_d3d11va_hwaccel_select="h264_decoder"
2679 h264_d3d11va2_hwaccel_deps="d3d11va"
2680 h264_d3d11va2_hwaccel_select="h264_decoder"
2681 h264_dxva2_hwaccel_deps="dxva2"
2682 h264_dxva2_hwaccel_select="h264_decoder"
2683 h264_mediacodec_hwaccel_deps="mediacodec"
2684 h264_mmal_hwaccel_deps="mmal"
2685 h264_qsv_hwaccel_deps="libmfx"
2686 h264_vaapi_hwaccel_deps="vaapi"
2687 h264_vaapi_hwaccel_select="h264_decoder"
2688 h264_vda_hwaccel_deps="vda"
2689 h264_vda_hwaccel_select="h264_decoder"
2690 h264_vda_old_hwaccel_deps="vda"
2691 h264_vda_old_hwaccel_select="h264_decoder"
2692 h264_vdpau_hwaccel_deps="vdpau"
2693 h264_vdpau_hwaccel_select="h264_decoder"
2694 h264_videotoolbox_hwaccel_deps="videotoolbox"
2695 h264_videotoolbox_hwaccel_select="h264_decoder"
2696 hevc_cuvid_hwaccel_deps="cuda cuvid"
2697 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2698 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2699 hevc_d3d11va_hwaccel_select="hevc_decoder"
2700 hevc_mediacodec_hwaccel_deps="mediacodec"
2701 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2702 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2703 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2704 hevc_dxva2_hwaccel_select="hevc_decoder"
2705 hevc_qsv_hwaccel_deps="libmfx"
2706 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2707 hevc_vaapi_hwaccel_select="hevc_decoder"
2708 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2709 hevc_vdpau_hwaccel_select="hevc_decoder"
2710 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2711 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2712 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2713 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2714 mpeg_xvmc_hwaccel_deps="xvmc"
2715 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2716 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2717 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2718 mpeg1_vdpau_hwaccel_deps="vdpau"
2719 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2720 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2721 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2722 mpeg1_xvmc_hwaccel_deps="xvmc"
2723 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2724 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2725 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2726 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2727 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2728 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2729 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2730 mpeg2_dxva2_hwaccel_deps="dxva2"
2731 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2732 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2733 mpeg2_mmal_hwaccel_deps="mmal"
2734 mpeg2_qsv_hwaccel_deps="libmfx"
2735 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2736 mpeg2_vaapi_hwaccel_deps="vaapi"
2737 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2738 mpeg2_vdpau_hwaccel_deps="vdpau"
2739 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2740 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2741 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2742 mpeg2_xvmc_hwaccel_deps="xvmc"
2743 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2744 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2745 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2746 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2747 mpeg4_mmal_hwaccel_deps="mmal"
2748 mpeg4_vaapi_hwaccel_deps="vaapi"
2749 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2750 mpeg4_vdpau_hwaccel_deps="vdpau"
2751 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2752 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2753 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2754 vc1_cuvid_hwaccel_deps="cuda cuvid"
2755 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2756 vc1_d3d11va_hwaccel_deps="d3d11va"
2757 vc1_d3d11va_hwaccel_select="vc1_decoder"
2758 vc1_d3d11va2_hwaccel_deps="d3d11va"
2759 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2760 vc1_dxva2_hwaccel_deps="dxva2"
2761 vc1_dxva2_hwaccel_select="vc1_decoder"
2762 vc1_mmal_hwaccel_deps="mmal"
2763 vc1_qsv_hwaccel_deps="libmfx"
2764 vc1_qsv_hwaccel_select="qsvdec_vc1"
2765 vc1_vaapi_hwaccel_deps="vaapi"
2766 vc1_vaapi_hwaccel_select="vc1_decoder"
2767 vc1_vdpau_hwaccel_deps="vdpau"
2768 vc1_vdpau_hwaccel_select="vc1_decoder"
2769 vp8_cuvid_hwaccel_deps="cuda cuvid"
2770 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2771 vp9_cuvid_hwaccel_deps="cuda cuvid"
2772 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2773 vp8_mediacodec_hwaccel_deps="mediacodec"
2774 vp8_qsv_hwaccel_deps="libmfx"
2775 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2776 vp9_d3d11va_hwaccel_select="vp9_decoder"
2777 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2778 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2779 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2780 vp9_dxva2_hwaccel_select="vp9_decoder"
2781 vp9_mediacodec_hwaccel_deps="mediacodec"
2782 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2783 vp9_vaapi_hwaccel_select="vp9_decoder"
2784 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2785 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2786 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2787 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2788 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2789
2790 # hardware-accelerated codecs
2791 omx_deps="libdl pthreads"
2792 omx_rpi_select="omx"
2793 qsvdec_select="qsv"
2794 qsvenc_select="qsv"
2795 vaapi_encode_deps="vaapi"
2796 v4l2_m2m_deps_any="linux_videodev2_h"
2797
2798 hwupload_cuda_filter_deps="cuda"
2799 scale_npp_filter_deps="cuda libnpp"
2800 scale_cuda_filter_deps="cuda_sdk"
2801 thumbnail_cuda_filter_deps="cuda_sdk"
2802
2803 nvenc_deps="cuda"
2804 nvenc_deps_any="libdl LoadLibrary"
2805 nvenc_encoder_deps="nvenc"
2806
2807 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2808 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2809 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2810 h264_cuvid_decoder_deps="cuda cuvid"
2811 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2812 h264_mediacodec_decoder_deps="mediacodec"
2813 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2814 h264_mmal_decoder_deps="mmal"
2815 h264_nvenc_encoder_deps="nvenc"
2816 h264_omx_encoder_deps="omx"
2817 h264_qsv_decoder_deps="libmfx"
2818 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2819 h264_qsv_encoder_deps="libmfx"
2820 h264_qsv_encoder_select="qsvenc"
2821 h264_rkmpp_decoder_deps="rkmpp"
2822 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2823 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2824 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2825 h264_vda_decoder_deps="vda"
2826 h264_vda_decoder_select="h264_decoder"
2827 h264_vdpau_decoder_deps="vdpau"
2828 h264_vdpau_decoder_select="h264_decoder"
2829 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2830 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2831 hevc_cuvid_decoder_deps="cuda cuvid"
2832 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2833 hevc_mediacodec_decoder_deps="mediacodec"
2834 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2835 hevc_nvenc_encoder_deps="nvenc"
2836 hevc_qsv_decoder_deps="libmfx"
2837 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2838 hevc_qsv_encoder_deps="libmfx"
2839 hevc_qsv_encoder_select="hevcparse qsvenc"
2840 hevc_rkmpp_decoder_deps="rkmpp"
2841 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2842 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2843 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2844 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2845 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2846 mjpeg_cuvid_decoder_deps="cuda cuvid"
2847 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2848 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2849 mpeg1_cuvid_decoder_deps="cuda cuvid"
2850 mpeg1_vdpau_decoder_deps="vdpau"
2851 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2852 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2853 mpeg2_crystalhd_decoder_select="crystalhd"
2854 mpeg2_cuvid_decoder_deps="cuda cuvid"
2855 mpeg2_mmal_decoder_deps="mmal"
2856 mpeg2_mediacodec_decoder_deps="mediacodec"
2857 mpeg2_qsv_decoder_deps="libmfx"
2858 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2859 mpeg2_qsv_encoder_deps="libmfx"
2860 mpeg2_qsv_encoder_select="qsvenc"
2861 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2862 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2863 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2864 mpeg4_crystalhd_decoder_select="crystalhd"
2865 mpeg4_cuvid_decoder_deps="cuda cuvid"
2866 mpeg4_mediacodec_decoder_deps="mediacodec"
2867 mpeg4_mmal_decoder_deps="mmal"
2868 mpeg4_omx_encoder_deps="omx"
2869 mpeg4_vdpau_decoder_deps="vdpau"
2870 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2871 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2872 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2873 mpeg_vdpau_decoder_deps="vdpau"
2874 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2875 msmpeg4_crystalhd_decoder_select="crystalhd"
2876 nvenc_h264_encoder_select="h264_nvenc_encoder"
2877 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2878 vc1_crystalhd_decoder_select="crystalhd"
2879 vc1_cuvid_decoder_deps="cuda cuvid"
2880 vc1_mmal_decoder_deps="mmal"
2881 vc1_vdpau_decoder_deps="vdpau"
2882 vc1_vdpau_decoder_select="vc1_decoder"
2883 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2884 vp8_cuvid_decoder_deps="cuda cuvid"
2885 vp8_mediacodec_decoder_deps="mediacodec"
2886 vp8_qsv_decoder_deps="libmfx"
2887 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2888 vp8_rkmpp_decoder_deps="rkmpp"
2889 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2890 vp8_vaapi_encoder_select="vaapi_encode"
2891 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2892 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2893 vp9_cuvid_decoder_deps="cuda cuvid"
2894 vp9_mediacodec_decoder_deps="mediacodec"
2895 vp9_rkmpp_decoder_deps="rkmpp"
2896 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2897 vp9_vaapi_encoder_select="vaapi_encode"
2898 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2899 wmv3_crystalhd_decoder_select="crystalhd"
2900 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2901
2902 # parsers
2903 h264_parser_select="golomb h264dsp h264parse"
2904 hevc_parser_select="hevcparse"
2905 mpegaudio_parser_select="mpegaudioheader"
2906 mpegvideo_parser_select="mpegvideo"
2907 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2908 vc1_parser_select="vc1dsp"
2909
2910 # bitstream_filters
2911 h264_metadata_bsf_select="cbs_h264"
2912 h264_redundant_pps_bsf_select="cbs_h264"
2913 hevc_metadata_bsf_select="cbs_h265"
2914 mjpeg2jpeg_bsf_select="jpegtables"
2915 mpeg2_metadata_bsf_select="cbs_mpeg2"
2916 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2917
2918 # external libraries
2919 aac_at_decoder_deps="audiotoolbox"
2920 ac3_at_decoder_deps="audiotoolbox"
2921 ac3_at_decoder_select="ac3_parser"
2922 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2923 alac_at_decoder_deps="audiotoolbox"
2924 amr_nb_at_decoder_deps="audiotoolbox"
2925 avisynth_deps_any="libdl LoadLibrary"
2926 avisynth_demuxer_deps="avisynth"
2927 avisynth_demuxer_select="riffdec"
2928 eac3_at_decoder_deps="audiotoolbox"
2929 eac3_at_decoder_select="ac3_parser"
2930 gsm_ms_at_decoder_deps="audiotoolbox"
2931 ilbc_at_decoder_deps="audiotoolbox"
2932 mp1_at_decoder_deps="audiotoolbox"
2933 mp2_at_decoder_deps="audiotoolbox"
2934 mp3_at_decoder_deps="audiotoolbox"
2935 mp1_at_decoder_select="mpegaudioheader"
2936 mp2_at_decoder_select="mpegaudioheader"
2937 mp3_at_decoder_select="mpegaudioheader"
2938 pcm_alaw_at_decoder_deps="audiotoolbox"
2939 pcm_mulaw_at_decoder_deps="audiotoolbox"
2940 qdmc_at_decoder_deps="audiotoolbox"
2941 qdm2_at_decoder_deps="audiotoolbox"
2942 aac_at_encoder_deps="audiotoolbox"
2943 aac_at_encoder_select="audio_frame_queue"
2944 alac_at_encoder_deps="audiotoolbox"
2945 alac_at_encoder_select="audio_frame_queue"
2946 ilbc_at_encoder_deps="audiotoolbox"
2947 ilbc_at_encoder_select="audio_frame_queue"
2948 pcm_alaw_at_encoder_deps="audiotoolbox"
2949 pcm_alaw_at_encoder_select="audio_frame_queue"
2950 pcm_mulaw_at_encoder_deps="audiotoolbox"
2951 pcm_mulaw_at_encoder_select="audio_frame_queue"
2952 chromaprint_muxer_deps="chromaprint"
2953 h264_videotoolbox_encoder_deps="pthreads"
2954 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2955 libcelt_decoder_deps="libcelt"
2956 libfdk_aac_decoder_deps="libfdk_aac"
2957 libfdk_aac_encoder_deps="libfdk_aac"
2958 libfdk_aac_encoder_select="audio_frame_queue"
2959 libgme_demuxer_deps="libgme"
2960 libgsm_decoder_deps="libgsm"
2961 libgsm_encoder_deps="libgsm"
2962 libgsm_ms_decoder_deps="libgsm"
2963 libgsm_ms_encoder_deps="libgsm"
2964 libilbc_decoder_deps="libilbc"
2965 libilbc_encoder_deps="libilbc"
2966 libkvazaar_encoder_deps="libkvazaar"
2967 libmodplug_demuxer_deps="libmodplug"
2968 libmp3lame_encoder_deps="libmp3lame"
2969 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2970 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2971 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2972 libopencore_amrnb_encoder_select="audio_frame_queue"
2973 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2974 libopenh264_decoder_deps="libopenh264"
2975 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2976 libopenh264_encoder_deps="libopenh264"
2977 libopenjpeg_decoder_deps="libopenjpeg"
2978 libopenjpeg_encoder_deps="libopenjpeg"
2979 libopenmpt_demuxer_deps="libopenmpt"
2980 libopus_decoder_deps="libopus"
2981 libopus_encoder_deps="libopus"
2982 libopus_encoder_select="audio_frame_queue"
2983 librsvg_decoder_deps="librsvg"
2984 libshine_encoder_deps="libshine"
2985 libshine_encoder_select="audio_frame_queue"
2986 libspeex_decoder_deps="libspeex"
2987 libspeex_encoder_deps="libspeex"
2988 libspeex_encoder_select="audio_frame_queue"
2989 libtheora_encoder_deps="libtheora"
2990 libtwolame_encoder_deps="libtwolame"
2991 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2992 libvorbis_decoder_deps="libvorbis"
2993 libvorbis_encoder_deps="libvorbis libvorbisenc"
2994 libvorbis_encoder_select="audio_frame_queue"
2995 libvpx_vp8_decoder_deps="libvpx"
2996 libvpx_vp8_encoder_deps="libvpx"
2997 libvpx_vp9_decoder_deps="libvpx"
2998 libvpx_vp9_encoder_deps="libvpx"
2999 libwavpack_encoder_deps="libwavpack"
3000 libwavpack_encoder_select="audio_frame_queue"
3001 libwebp_encoder_deps="libwebp"
3002 libwebp_anim_encoder_deps="libwebp"
3003 libx262_encoder_deps="libx262"
3004 libx264_encoder_deps="libx264"
3005 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3006 libx264rgb_encoder_select="libx264_encoder"
3007 libx265_encoder_deps="libx265"
3008 libxavs_encoder_deps="libxavs"
3009 libxvid_encoder_deps="libxvid"
3010 libzvbi_teletext_decoder_deps="libzvbi"
3011 videotoolbox_suggest="coreservices"
3012 videotoolbox_deps="corefoundation coremedia corevideo"
3013 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3014 videotoolbox_encoder_suggest="vda_framework"
3015
3016 # demuxers / muxers
3017 ac3_demuxer_select="ac3_parser"
3018 aiff_muxer_select="iso_media"
3019 asf_demuxer_select="riffdec"
3020 asf_o_demuxer_select="riffdec"
3021 asf_muxer_select="riffenc"
3022 asf_stream_muxer_select="asf_muxer"
3023 avi_demuxer_select="iso_media riffdec exif"
3024 avi_muxer_select="riffenc"
3025 caf_demuxer_select="iso_media riffdec"
3026 caf_muxer_select="iso_media"
3027 dash_muxer_select="mp4_muxer"
3028 dash_demuxer_deps="libxml2"
3029 dirac_demuxer_select="dirac_parser"
3030 dts_demuxer_select="dca_parser"
3031 dtshd_demuxer_select="dca_parser"
3032 dv_demuxer_select="dvprofile"
3033 dv_muxer_select="dvprofile"
3034 dxa_demuxer_select="riffdec"
3035 eac3_demuxer_select="ac3_parser"
3036 f4v_muxer_select="mov_muxer"
3037 fifo_muxer_deps="threads"
3038 flac_demuxer_select="flac_parser"
3039 hds_muxer_select="flv_muxer"
3040 hls_muxer_select="mpegts_muxer"
3041 hls_muxer_suggest="gcrypt openssl"
3042 image2_alias_pix_demuxer_select="image2_demuxer"
3043 image2_brender_pix_demuxer_select="image2_demuxer"
3044 ipod_muxer_select="mov_muxer"
3045 ismv_muxer_select="mov_muxer"
3046 matroska_audio_muxer_select="matroska_muxer"
3047 matroska_demuxer_select="iso_media riffdec"
3048 matroska_demuxer_suggest="bzlib lzo zlib"
3049 matroska_muxer_select="iso_media riffenc"
3050 mmf_muxer_select="riffenc"
3051 mov_demuxer_select="iso_media riffdec"
3052 mov_demuxer_suggest="zlib"
3053 mov_muxer_select="iso_media riffenc rtpenc_chain"
3054 mp3_demuxer_select="mpegaudio_parser"
3055 mp3_muxer_select="mpegaudioheader"
3056 mp4_muxer_select="mov_muxer"
3057 mpegts_demuxer_select="iso_media"
3058 mpegts_muxer_select="adts_muxer latm_muxer"
3059 mpegtsraw_demuxer_select="mpegts_demuxer"
3060 mxf_d10_muxer_select="mxf_muxer"
3061 mxf_opatom_muxer_select="mxf_muxer"
3062 nut_muxer_select="riffenc"
3063 nuv_demuxer_select="riffdec"
3064 oga_muxer_select="ogg_muxer"
3065 ogg_demuxer_select="dirac_parse"
3066 ogv_muxer_select="ogg_muxer"
3067 opus_muxer_select="ogg_muxer"
3068 psp_muxer_select="mov_muxer"
3069 rtp_demuxer_select="sdp_demuxer"
3070 rtp_muxer_select="golomb"
3071 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3072 rtsp_demuxer_select="http_protocol rtpdec"
3073 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3074 sap_demuxer_select="sdp_demuxer"
3075 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3076 sdp_demuxer_select="rtpdec"
3077 smoothstreaming_muxer_select="ismv_muxer"
3078 spdif_muxer_select="aac_parser"
3079 spx_muxer_select="ogg_muxer"
3080 swf_demuxer_suggest="zlib"
3081 tak_demuxer_select="tak_parser"
3082 tg2_muxer_select="mov_muxer"
3083 tgp_muxer_select="mov_muxer"
3084 vobsub_demuxer_select="mpegps_demuxer"
3085 w64_demuxer_select="wav_demuxer"
3086 w64_muxer_select="wav_muxer"
3087 wav_demuxer_select="riffdec"
3088 wav_muxer_select="riffenc"
3089 webm_muxer_select="iso_media riffenc"
3090 webm_dash_manifest_demuxer_select="matroska_demuxer"
3091 wtv_demuxer_select="mpegts_demuxer riffdec"
3092 wtv_muxer_select="mpegts_muxer riffenc"
3093 xmv_demuxer_select="riffdec"
3094 xwma_demuxer_select="riffdec"
3095
3096 # indevs / outdevs
3097 alsa_indev_deps="alsa"
3098 alsa_outdev_deps="alsa"
3099 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3100 avfoundation_indev_suggest="coregraphics applicationservices"
3101 avfoundation_indev_extralibs="-framework Foundation"
3102 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3103 caca_outdev_deps="libcaca"
3104 decklink_deps_any="libdl LoadLibrary"
3105 decklink_indev_deps="decklink threads"
3106 decklink_indev_extralibs="-lstdc++"
3107 decklink_outdev_deps="decklink threads"
3108 decklink_outdev_extralibs="-lstdc++"
3109 libndi_newtek_indev_deps="libndi_newtek"
3110 libndi_newtek_indev_extralibs="-lndi"
3111 libndi_newtek_outdev_deps="libndi_newtek"
3112 libndi_newtek_outdev_extralibs="-lndi"
3113 dshow_indev_deps="IBaseFilter"
3114 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3115 fbdev_indev_deps="linux_fb_h"
3116 fbdev_outdev_deps="linux_fb_h"
3117 gdigrab_indev_deps="CreateDIBSection"
3118 gdigrab_indev_extralibs="-lgdi32"
3119 gdigrab_indev_select="bmp_decoder"
3120 iec61883_indev_deps="libiec61883"
3121 jack_indev_deps="jack"
3122 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3123 kmsgrab_indev_deps="libdrm"
3124 lavfi_indev_deps="avfilter"
3125 libcdio_indev_deps="libcdio"
3126 libdc1394_indev_deps="libdc1394"
3127 openal_indev_deps="openal"
3128 opengl_outdev_deps="opengl"
3129 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3130 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3131 pulse_indev_deps="libpulse"
3132 pulse_outdev_deps="libpulse"
3133 sdl2_outdev_deps="sdl2"
3134 sndio_indev_deps="sndio"
3135 sndio_outdev_deps="sndio"
3136 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3137 v4l2_indev_suggest="libv4l2"
3138 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3139 v4l2_outdev_suggest="libv4l2"
3140 vfwcap_indev_deps="vfw32 vfwcap_defines"
3141 xcbgrab_indev_deps="libxcb"
3142 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3143 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3144 xv_outdev_extralibs="-lXv -lX11 -lXext"
3145
3146 # protocols
3147 async_protocol_deps="threads"
3148 bluray_protocol_deps="libbluray"
3149 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3150 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3151 ffrtmpcrypt_protocol_select="tcp_protocol"
3152 ffrtmphttp_protocol_conflict="librtmp_protocol"
3153 ffrtmphttp_protocol_select="http_protocol"
3154 ftp_protocol_select="tcp_protocol"
3155 gopher_protocol_select="network"
3156 http_protocol_select="tcp_protocol"
3157 http_protocol_suggest="zlib"
3158 httpproxy_protocol_select="tcp_protocol"
3159 httpproxy_protocol_suggest="zlib"
3160 https_protocol_select="tls_protocol"
3161 https_protocol_suggest="zlib"
3162 icecast_protocol_select="http_protocol"
3163 librtmp_protocol_deps="librtmp"
3164 librtmpe_protocol_deps="librtmp"
3165 librtmps_protocol_deps="librtmp"
3166 librtmpt_protocol_deps="librtmp"
3167 librtmpte_protocol_deps="librtmp"
3168 libsmbclient_protocol_deps="libsmbclient gplv3"
3169 libssh_protocol_deps="libssh"
3170 mmsh_protocol_select="http_protocol"
3171 mmst_protocol_select="network"
3172 rtmp_protocol_conflict="librtmp_protocol"
3173 rtmp_protocol_select="tcp_protocol"
3174 rtmp_protocol_suggest="zlib"
3175 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3176 rtmpe_protocol_suggest="zlib"
3177 rtmps_protocol_conflict="librtmp_protocol"
3178 rtmps_protocol_select="tls_protocol"
3179 rtmps_protocol_suggest="zlib"
3180 rtmpt_protocol_select="ffrtmphttp_protocol"
3181 rtmpt_protocol_suggest="zlib"
3182 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3183 rtmpte_protocol_suggest="zlib"
3184 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3185 rtmpts_protocol_suggest="zlib"
3186 rtp_protocol_select="udp_protocol"
3187 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3188 sctp_protocol_select="network"
3189 srtp_protocol_select="rtp_protocol srtp"
3190 tcp_protocol_select="network"
3191 tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"
3192 tls_gnutls_protocol_deps="gnutls"
3193 tls_gnutls_protocol_select="tcp_protocol"
3194 tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"
3195 tls_openssl_protocol_deps="openssl"
3196 tls_openssl_protocol_select="tcp_protocol"
3197 tls_schannel_protocol_deps="schannel"
3198 tls_schannel_protocol_select="tcp_protocol"
3199 tls_securetransport_protocol_deps="securetransport"
3200 tls_securetransport_protocol_select="tcp_protocol"
3201 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3202 udp_protocol_select="network"
3203 udplite_protocol_select="network"
3204 unix_protocol_deps="sys_un_h"
3205 unix_protocol_select="network"
3206
3207 # filters
3208 afftfilt_filter_deps="avcodec"
3209 afftfilt_filter_select="fft"
3210 afir_filter_deps="avcodec"
3211 afir_filter_select="fft"
3212 amovie_filter_deps="avcodec avformat"
3213 aresample_filter_deps="swresample"
3214 ass_filter_deps="libass"
3215 atempo_filter_deps="avcodec"
3216 atempo_filter_select="rdft"
3217 azmq_filter_deps="libzmq"
3218 blackframe_filter_deps="gpl"
3219 boxblur_filter_deps="gpl"
3220 bs2b_filter_deps="libbs2b"
3221 colormatrix_filter_deps="gpl"
3222 coreimage_filter_deps="coreimage appkit"
3223 coreimage_filter_extralibs="-framework OpenGL"
3224 coreimagesrc_filter_deps="coreimage appkit"
3225 coreimagesrc_filter_extralibs="-framework OpenGL"
3226 cover_rect_filter_deps="avcodec avformat gpl"
3227 cropdetect_filter_deps="gpl"
3228 deinterlace_qsv_filter_deps="libmfx"
3229 deinterlace_vaapi_filter_deps="vaapi"
3230 delogo_filter_deps="gpl"
3231 deshake_filter_select="pixelutils"
3232 deshake_filter_suggest="opencl"
3233 drawtext_filter_deps="libfreetype"
3234 drawtext_filter_suggest="libfontconfig libfribidi"
3235 elbg_filter_deps="avcodec"
3236 eq_filter_deps="gpl"
3237 fftfilt_filter_deps="avcodec"
3238 fftfilt_filter_select="rdft"
3239 find_rect_filter_deps="avcodec avformat gpl"
3240 firequalizer_filter_deps="avcodec"
3241 firequalizer_filter_select="rdft"
3242 flite_filter_deps="libflite"
3243 framerate_filter_select="pixelutils"
3244 frei0r_filter_deps="frei0r libdl"
3245 frei0r_src_filter_deps="frei0r libdl"
3246 fspp_filter_deps="gpl"
3247 geq_filter_deps="gpl"
3248 histeq_filter_deps="gpl"
3249 hqdn3d_filter_deps="gpl"
3250 interlace_filter_deps="gpl"
3251 kerndeint_filter_deps="gpl"
3252 ladspa_filter_deps="ladspa libdl"
3253 mcdeint_filter_deps="avcodec gpl"
3254 movie_filter_deps="avcodec avformat"
3255 mpdecimate_filter_deps="gpl"
3256 mpdecimate_filter_select="pixelutils"
3257 mptestsrc_filter_deps="gpl"
3258 negate_filter_deps="lut_filter"
3259 nnedi_filter_deps="gpl"
3260 ocr_filter_deps="libtesseract"
3261 ocv_filter_deps="libopencv"
3262 owdenoise_filter_deps="gpl"
3263 pan_filter_deps="swresample"
3264 perspective_filter_deps="gpl"
3265 phase_filter_deps="gpl"
3266 pp7_filter_deps="gpl"
3267 pp_filter_deps="gpl postproc"
3268 pullup_filter_deps="gpl"
3269 removelogo_filter_deps="avcodec avformat swscale"
3270 repeatfields_filter_deps="gpl"
3271 resample_filter_deps="avresample"
3272 rubberband_filter_deps="librubberband"
3273 sab_filter_deps="gpl swscale"
3274 scale2ref_filter_deps="swscale"
3275 scale_filter_deps="swscale"
3276 scale_qsv_filter_deps="libmfx"
3277 select_filter_select="pixelutils"
3278 showcqt_filter_deps="avcodec avformat swscale"
3279 showcqt_filter_suggest="libfontconfig libfreetype"
3280 showcqt_filter_select="fft"
3281 showfreqs_filter_deps="avcodec"
3282 showfreqs_filter_select="fft"
3283 showspectrum_filter_deps="avcodec"
3284 showspectrum_filter_select="fft"
3285 showspectrumpic_filter_deps="avcodec"
3286 showspectrumpic_filter_select="fft"
3287 signature_filter_deps="gpl avcodec avformat"
3288 smartblur_filter_deps="gpl swscale"
3289 sofalizer_filter_deps="libmysofa avcodec"
3290 sofalizer_filter_select="fft"
3291 spectrumsynth_filter_deps="avcodec"
3292 spectrumsynth_filter_select="fft"
3293 spp_filter_deps="gpl avcodec"
3294 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3295 stereo3d_filter_deps="gpl"
3296 subtitles_filter_deps="avformat avcodec libass"
3297 super2xsai_filter_deps="gpl"
3298 pixfmts_super2xsai_test_deps="super2xsai_filter"
3299 tinterlace_filter_deps="gpl"
3300 tinterlace_merge_test_deps="tinterlace_filter"
3301 tinterlace_pad_test_deps="tinterlace_filter"
3302 tonemap_filter_deps="const_nan"
3303 uspp_filter_deps="gpl avcodec"
3304 unsharp_filter_suggest="opencl"
3305 vaguedenoiser_filter_deps="gpl"
3306 vidstabdetect_filter_deps="libvidstab"
3307 vidstabtransform_filter_deps="libvidstab"
3308 libvmaf_filter_deps="libvmaf"
3309 zmq_filter_deps="libzmq"
3310 zoompan_filter_deps="swscale"
3311 zscale_filter_deps="libzimg const_nan"
3312 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3313
3314 # examples
3315 avio_dir_cmd_deps="avformat avutil"
3316 avio_reading_deps="avformat avcodec avutil"
3317 decode_audio_example_deps="avcodec avutil"
3318 decode_video_example_deps="avcodec avutil"
3319 demuxing_decoding_example_deps="avcodec avformat avutil"
3320 encode_audio_example_deps="avcodec avutil"
3321 encode_video_example_deps="avcodec avutil"
3322 extract_mvs_example_deps="avcodec avformat avutil"
3323 filter_audio_example_deps="avfilter avutil"
3324 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3325 filtering_video_example_deps="avfilter avcodec avformat avutil"
3326 http_multiclient_example_deps="avformat avutil fork"
3327 hw_decode_example_deps="avcodec avformat avutil"
3328 metadata_example_deps="avformat avutil"
3329 muxing_example_deps="avcodec avformat avutil swscale"
3330 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3331 remuxing_example_deps="avcodec avformat avutil"
3332 resampling_audio_example_deps="avutil swresample"
3333 scaling_video_example_deps="avutil swscale"
3334 transcode_aac_example_deps="avcodec avformat swresample"
3335 transcoding_example_deps="avfilter avcodec avformat avutil"
3336
3337 # EXTRALIBS_LIST
3338 cpu_init_extralibs="pthreads_extralibs"
3339 cws2fws_extralibs="zlib_extralibs"
3340
3341 # libraries, in linking order
3342 avcodec_deps="avutil"
3343 avcodec_suggest="libm"
3344 avcodec_select="null_bsf"
3345 avdevice_deps="avformat avcodec avutil"
3346 avdevice_suggest="libm"
3347 avfilter_deps="avutil"
3348 avfilter_suggest="libm"
3349 avformat_deps="avcodec avutil"
3350 avformat_suggest="libm network"
3351 avresample_deps="avutil"
3352 avresample_suggest="libm"
3353 avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3354 postproc_deps="avutil gpl"
3355 postproc_suggest="libm"
3356 swresample_deps="avutil"
3357 swresample_suggest="libm libsoxr"
3358 swscale_deps="avutil"
3359 swscale_suggest="libm"
3360
3361 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3362 avfilter_extralibs="pthreads_extralibs"
3363 avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3364
3365 # programs
3366 ffmpeg_deps="avcodec avfilter avformat swresample"
3367 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3368                null_filter
3369                trim_filter"
3370 ffmpeg_suggest="ole32 psapi shell32"
3371 ffplay_deps="avcodec avformat swscale swresample sdl2"
3372 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3373 ffplay_suggest="shell32"
3374 ffprobe_deps="avcodec avformat"
3375 ffprobe_suggest="shell32"
3376 ffserver_deps="avformat fork sarestart"
3377 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3378
3379 # documentation
3380 podpages_deps="perl"
3381 manpages_deps="perl pod2man"
3382 htmlpages_deps="perl"
3383 htmlpages_deps_any="makeinfo_html texi2html"
3384 txtpages_deps="perl makeinfo"
3385 doc_deps_any="manpages htmlpages podpages txtpages"
3386
3387 # default parameters
3388
3389 logfile="ffbuild/config.log"
3390
3391 # installation paths
3392 prefix_default="/usr/local"
3393 bindir_default='${prefix}/bin'
3394 datadir_default='${prefix}/share/ffmpeg'
3395 docdir_default='${prefix}/share/doc/ffmpeg'
3396 incdir_default='${prefix}/include'
3397 libdir_default='${prefix}/lib'
3398 mandir_default='${prefix}/share/man'
3399
3400 # toolchain
3401 ar_default="ar"
3402 cc_default="gcc"
3403 cxx_default="g++"
3404 host_cc_default="gcc"
3405 doxygen_default="doxygen"
3406 install="install"
3407 ln_s_default="ln -s -f"
3408 nm_default="nm -g"
3409 pkg_config_default=pkg-config
3410 ranlib_default="ranlib"
3411 strip_default="strip"
3412 version_script='--version-script'
3413 x86asmexe_default="nasm"
3414 windres_default="windres"
3415 nvcc_default="nvcc"
3416 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3417 striptype="direct"
3418
3419 # OS
3420 target_os_default=$(tolower $(uname -s))
3421 host_os=$target_os_default
3422
3423 # machine
3424 if test "$target_os_default" = aix; then
3425     arch_default=$(uname -p)
3426     strip_default="strip -X32_64"
3427 else
3428     arch_default=$(uname -m)
3429 fi
3430 cpu="generic"
3431 intrinsics="none"
3432
3433 # configurable options
3434 enable $PROGRAM_LIST
3435 enable $DOCUMENT_LIST
3436 enable $EXAMPLE_LIST
3437 enable $(filter_out avresample $LIBRARY_LIST)
3438 enable stripping
3439
3440 enable asm
3441 enable debug
3442 enable doc
3443 enable faan faandct faanidct
3444 enable optimizations
3445 enable runtime_cpudetect
3446 enable safe_bitstream_reader
3447 enable static
3448 enable swscale_alpha
3449 enable valgrind_backtrace
3450
3451 sws_max_filter_size_default=256
3452 set_default sws_max_filter_size
3453
3454 # internal components are enabled by default
3455 enable $EXTRALIBS_LIST
3456
3457 # Avoid external, non-system, libraries getting enabled by dependency resolution
3458 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3459
3460 # build settings
3461 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3462 LIBPREF="lib"
3463 LIBSUF=".a"
3464 FULLNAME='$(NAME)$(BUILDSUF)'
3465 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3466 SLIBPREF="lib"
3467 SLIBSUF=".so"
3468 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3469 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3470 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3471 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3472 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3473 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3474 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3475
3476 asflags_filter=echo
3477 cflags_filter=echo
3478 ldflags_filter=echo
3479
3480 AS_C='-c'
3481 AS_O='-o $@'
3482 CC_C='-c'
3483 CC_E='-E -o $@'
3484 CC_O='-o $@'
3485 CXX_C='-c'
3486 CXX_O='-o $@'
3487 OBJCC_C='-c'
3488 OBJCC_E='-E -o $@'
3489 OBJCC_O='-o $@'
3490 X86ASM_O='-o $@'
3491 LD_O='-o $@'
3492 LD_LIB='-l%'
3493 LD_PATH='-L'
3494 HOSTCC_C='-c'
3495 HOSTCC_E='-E -o $@'
3496 HOSTCC_O='-o $@'
3497 HOSTLD_O='-o $@'
3498 NVCC_C='-c'
3499 NVCC_O='-o $@'
3500
3501 host_extralibs='-lm'
3502 host_cflags_filter=echo
3503 host_ldflags_filter=echo
3504
3505 target_path='$(CURDIR)'
3506
3507 # since the object filename is not given with the -MM flag, the compiler
3508 # is only able to print the basename, and we must add the path ourselves
3509 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3510 DEPFLAGS='-MM'
3511
3512 mkdir -p ffbuild
3513
3514 # find source path
3515 if test -f configure; then
3516     source_path=.
3517 else
3518     source_path=$(cd $(dirname "$0"); pwd)
3519     case "$source_path" in
3520         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3521     esac
3522     test -e "$source_path/config.h" &&
3523         die "Out of tree builds are impossible with config.h in source dir."
3524 fi
3525
3526 for v in "$@"; do
3527     r=${v#*=}
3528     l=${v%"$r"}
3529     r=$(sh_quote "$r")
3530     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3531 done
3532
3533 find_things(){
3534     thing=$1
3535     pattern=$2
3536     file=$source_path/$3
3537     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3538 }
3539
3540 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3541 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3542 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3543 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3544 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3545 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3546 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3547 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3548 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3549
3550 find_things_extern(){
3551     thing=$1
3552     pattern=$2
3553     file=$source_path/$3
3554     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3555 }
3556
3557 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3558 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3559
3560 AVCODEC_COMPONENTS_LIST="
3561     $BSF_LIST
3562     $DECODER_LIST
3563     $ENCODER_LIST
3564     $HWACCEL_LIST
3565     $PARSER_LIST
3566 "
3567
3568 AVDEVICE_COMPONENTS_LIST="
3569     $INDEV_LIST
3570     $OUTDEV_LIST
3571 "
3572
3573 AVFILTER_COMPONENTS_LIST="
3574     $FILTER_LIST
3575 "
3576
3577 AVFORMAT_COMPONENTS_LIST="
3578     $DEMUXER_LIST
3579     $MUXER_LIST
3580     $PROTOCOL_LIST
3581 "
3582
3583 ALL_COMPONENTS="
3584     $AVCODEC_COMPONENTS_LIST
3585     $AVDEVICE_COMPONENTS_LIST
3586     $AVFILTER_COMPONENTS_LIST
3587     $AVFORMAT_COMPONENTS_LIST
3588 "
3589
3590 for n in $COMPONENT_LIST; do
3591     v=$(toupper ${n%s})_LIST
3592     eval enable \$$v
3593     eval ${n}_if_any="\$$v"
3594 done
3595
3596 enable $ARCH_EXT_LIST
3597
3598 die_unknown(){
3599     echo "Unknown option \"$1\"."
3600     echo "See $0 --help for available options."
3601     exit 1
3602 }
3603
3604 print_in_columns() {
3605     cols=$(expr $ncols / 24)
3606     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3607 }
3608
3609 show_list() {
3610     suffix=_$1
3611     shift
3612     echo $* | sed s/$suffix//g | print_in_columns
3613     exit 0
3614 }
3615
3616 rand_list(){
3617     IFS=', '
3618     set -- $*
3619     unset IFS
3620     for thing; do
3621         comp=${thing%:*}
3622         prob=${thing#$comp}
3623         prob=${prob#:}
3624         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3625         echo "prob ${prob:-0.5}"
3626         printf '%s\n' $comp
3627     done
3628 }
3629
3630 do_random(){
3631     action=$1
3632     shift
3633     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3634     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3635 }
3636
3637 for opt do
3638     optval="${opt#*=}"
3639     case "$opt" in
3640         --extra-ldflags=*)
3641             add_ldflags $optval
3642         ;;
3643         --extra-ldexeflags=*)
3644             add_ldexeflags $optval
3645         ;;
3646         --extra-ldlibflags=*)
3647             add_ldlibflags $optval
3648         ;;
3649         --extra-libs=*)
3650             add_extralibs $optval
3651         ;;
3652         --disable-devices)
3653             disable $INDEV_LIST $OUTDEV_LIST
3654         ;;
3655         --enable-debug=*)
3656             debuglevel="$optval"
3657         ;;
3658         --disable-programs)
3659             disable $PROGRAM_LIST
3660         ;;
3661         --disable-everything)
3662             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3663         ;;
3664         --disable-all)
3665             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3666             disable $LIBRARY_LIST $PROGRAM_LIST doc
3667             enable avutil
3668         ;;
3669         --enable-random|--disable-random)
3670             action=${opt%%-random}
3671             do_random ${action#--} $COMPONENT_LIST
3672         ;;
3673         --enable-random=*|--disable-random=*)
3674             action=${opt%%-random=*}
3675             do_random ${action#--} $optval
3676         ;;
3677         --enable-sdl)
3678             enable sdl2
3679         ;;
3680         --enable-*=*|--disable-*=*)
3681             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3682             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3683             eval list=\$$(toupper $thing)_LIST
3684             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3685             list=$(filter "$name" $list)
3686             [ "$list" = "" ] && warn "Option $opt did not match anything"
3687             $action $list
3688         ;;
3689         --enable-yasm|--disable-yasm)
3690             warn "The ${opt} option is only provided for compatibility and will be\n"\
3691                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3692             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3693         ;;
3694         --yasmexe=*)
3695             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3696                  "removed in the future. Use --x86asmexe instead."
3697             x86asmexe="$optval"
3698         ;;
3699         --enable-?*|--disable-?*)
3700             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3701             if is_in $option $COMPONENT_LIST; then
3702                 test $action = disable && action=unset
3703                 eval $action \$$(toupper ${option%s})_LIST
3704             elif is_in $option $CMDLINE_SELECT; then
3705                 $action $option
3706             else
3707                 die_unknown $opt
3708             fi
3709         ;;
3710         --list-*)
3711             NAME="${opt#--list-}"
3712             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3713             NAME=${NAME%s}
3714             eval show_list $NAME \$$(toupper $NAME)_LIST
3715         ;;
3716         --help|-h) show_help
3717         ;;
3718         --quiet|-q) quiet=yes
3719         ;;
3720         --fatal-warnings) enable fatal_warnings
3721         ;;
3722         --libfuzzer=*)
3723             libfuzzer_path="$optval"
3724         ;;
3725         *)
3726             optname="${opt%%=*}"
3727             optname="${optname#--}"
3728             optname=$(echo "$optname" | sed 's/-/_/g')
3729             if is_in $optname $CMDLINE_SET; then
3730                 eval $optname='$optval'
3731             elif is_in $optname $CMDLINE_APPEND; then
3732                 append $optname "$optval"
3733             else
3734                 die_unknown $opt
3735             fi
3736         ;;
3737     esac
3738 done
3739
3740 for e in $env; do
3741     eval "export $e"
3742 done
3743
3744 if disabled autodetect; then
3745
3746     # Unless iconv is explicitely disabled by the user, we still want to probe
3747     # for the iconv from the libc.
3748     disabled iconv || enable libc_iconv
3749
3750     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3751     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3752 fi
3753 # Mark specifically enabled, but normally autodetected libraries as requested.
3754 for lib in $AUTODETECT_LIBS; do
3755     enabled $lib && request $lib
3756 done
3757 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3758 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3759 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3760
3761 disabled logging && logfile=/dev/null
3762
3763 die_license_disabled() {
3764     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3765 }
3766
3767 die_license_disabled_gpl() {
3768     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3769 }
3770
3771 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3772 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3773
3774 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3775 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3776
3777 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3778
3779 # Disable all the library-specific components if the library itself
3780 # is disabled, see AVCODEC_LIST and following _LIST variables.
3781
3782 disable_components(){
3783     disabled ${1} && disable $(
3784         eval components="\$$(toupper ${1})_COMPONENTS"
3785         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3786     )
3787 }
3788
3789 map 'disable_components $v' $LIBRARY_LIST
3790
3791 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3792 set >> $logfile
3793
3794 test -n "$valgrind" && toolchain="valgrind-memcheck"
3795
3796 enabled ossfuzz && {
3797     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3798     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3799 }
3800
3801 case "$toolchain" in
3802     *-asan)
3803         cc_default="${toolchain%-asan}"
3804         add_cflags  -fsanitize=address
3805         add_ldflags -fsanitize=address
3806     ;;
3807     *-msan)
3808         cc_default="${toolchain%-msan}"
3809         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3810         add_ldflags -fsanitize=memory
3811     ;;
3812     *-tsan)
3813         cc_default="${toolchain%-tsan}"
3814         add_cflags  -fsanitize=thread -fPIE
3815         add_ldflags -fsanitize=thread -pie
3816         case "$toolchain" in
3817             gcc-tsan)
3818                 add_cflags  -fPIC
3819                 add_ldflags -fPIC
3820                 ;;
3821         esac
3822     ;;
3823     *-usan)
3824         cc_default="${toolchain%-usan}"
3825         add_cflags  -fsanitize=undefined
3826         add_ldflags -fsanitize=undefined
3827     ;;
3828     valgrind-*)
3829         target_exec_default="valgrind"
3830         case "$toolchain" in
3831             valgrind-massif)
3832                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3833                 ;;
3834             valgrind-memcheck)
3835                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3836                 ;;
3837         esac
3838     ;;
3839     msvc)
3840         # Check whether the current MSVC version needs the C99 converter.
3841         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3842         # support enough of C99 to build ffmpeg. Default to the new
3843         # behaviour if the regexp was unable to match anything, since this
3844         # successfully parses the version number of existing supported
3845         # versions that require the converter (MSVC 2010 and 2012).
3846         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3847         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3848             cc_default="cl"
3849             cxx_default="cl"
3850         else
3851             cc_default="c99wrap cl"
3852             cxx_default="c99wrap cl"
3853         fi
3854         ld_default="$source_path/compat/windows/mslink"
3855         nm_default="dumpbin -symbols"
3856         ar_default="lib"
3857         case "$arch" in
3858         arm*)
3859             as_default="armasm"
3860             ;;
3861         esac
3862         target_os_default="win32"
3863         # Use a relative path for TMPDIR. This makes sure all the
3864         # ffconf temp files are written with a relative path, avoiding
3865         # issues with msys/win32 path conversion for MSVC parameters
3866         # such as -Fo<file> or -out:<file>.
3867         TMPDIR=.
3868     ;;
3869     icl)
3870         cc_default="icl"
3871         ld_default="xilink"
3872         nm_default="dumpbin -symbols"
3873         ar_default="xilib"
3874         target_os_default="win32"
3875         TMPDIR=.
3876     ;;
3877     gcov)
3878         add_cflags  -fprofile-arcs -ftest-coverage
3879         add_ldflags -fprofile-arcs -ftest-coverage
3880     ;;
3881     llvm-cov)
3882         add_cflags -fprofile-arcs -ftest-coverage
3883         add_ldflags --coverage
3884     ;;
3885     hardened)
3886         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3887         add_cflags   -fno-strict-overflow -fstack-protector-all
3888         add_ldflags  -Wl,-z,relro -Wl,-z,now
3889         add_cflags   -fPIE
3890         add_ldexeflags -fPIE -pie
3891     ;;
3892     ?*)
3893         die "Unknown toolchain $toolchain"
3894     ;;
3895 esac
3896
3897 test -n "$cross_prefix" && enable cross_compile
3898
3899 if enabled cross_compile; then
3900     test -n "$arch" && test -n "$target_os" ||
3901         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3902 fi
3903
3904 ar_default="${cross_prefix}${ar_default}"
3905 cc_default="${cross_prefix}${cc_default}"
3906 cxx_default="${cross_prefix}${cxx_default}"
3907 nm_default="${cross_prefix}${nm_default}"
3908 pkg_config_default="${cross_prefix}${pkg_config_default}"
3909 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3910     ranlib_default="${cross_prefix}${ranlib_default} -D"
3911 else
3912     ranlib_default="${cross_prefix}${ranlib_default}"
3913 fi
3914 strip_default="${cross_prefix}${strip_default}"
3915 windres_default="${cross_prefix}${windres_default}"
3916
3917 sysinclude_default="${sysroot}/usr/include"
3918
3919 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3920     target_exec target_os x86asmexe nvcc
3921 enabled cross_compile || host_cc_default=$cc
3922 set_default host_cc
3923
3924 pkg_config_fail_message=""
3925 if ! $pkg_config --version >/dev/null 2>&1; then
3926     warn "$pkg_config not found, library detection may fail."
3927     pkg_config=false
3928 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3929     pkg_config_fail_message="
3930 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3931 fi
3932
3933 if test $doxygen != $doxygen_default && \
3934   ! $doxygen --version >/dev/null 2>&1; then
3935     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3936 fi
3937
3938 exesuf() {
3939     case $1 in
3940         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3941     esac
3942 }
3943
3944 EXESUF=$(exesuf $target_os)
3945 HOSTEXESUF=$(exesuf $host_os)
3946
3947 # set temporary file name
3948 : ${TMPDIR:=$TEMPDIR}
3949 : ${TMPDIR:=$TMP}
3950 : ${TMPDIR:=/tmp}
3951
3952 if [ -n "$tempprefix" ] ; then
3953     mktemp(){
3954         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3955         echo "$tmpname"
3956         mkdir "$tmpname"
3957     }
3958 elif ! check_cmd mktemp -u XXXXXX; then
3959     # simple replacement for missing mktemp
3960     # NOT SAFE FOR GENERAL USE
3961     mktemp(){
3962         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3963         echo "$tmpname"
3964         mkdir "$tmpname"
3965     }
3966 fi
3967
3968 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3969     die "Unable to create temporary directory in $TMPDIR."
3970
3971 tmpfile(){
3972     tmp="${FFTMPDIR}/test"$2
3973     (set -C; exec > $tmp) 2> /dev/null ||
3974         die "Unable to create temporary file in $FFTMPDIR."
3975     eval $1=$tmp
3976 }
3977
3978 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3979 trap 'exit 2' INT
3980
3981 tmpfile TMPASM .asm
3982 tmpfile TMPC   .c
3983 tmpfile TMPCPP .cpp
3984 tmpfile TMPE   $EXESUF
3985 tmpfile TMPH   .h
3986 tmpfile TMPM   .m
3987 tmpfile TMPO   .o
3988 tmpfile TMPS   .S
3989 tmpfile TMPSH  .sh
3990 tmpfile TMPV   .ver
3991
3992 unset -f mktemp
3993
3994 chmod +x $TMPE
3995
3996 # make sure we can execute files in $TMPDIR
3997 cat > $TMPSH 2>> $logfile <<EOF
3998 #! /bin/sh
3999 EOF
4000 chmod +x $TMPSH >> $logfile 2>&1
4001 if ! $TMPSH >> $logfile 2>&1; then
4002     cat <<EOF
4003 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4004 variable to another directory and make sure that it is not mounted noexec.
4005 EOF
4006     die "Sanity test failed."
4007 fi
4008
4009 armasm_flags(){
4010     for flag; do
4011         case $flag in
4012             # Filter out MSVC cl.exe options from cflags that shouldn't
4013             # be passed to gas-preprocessor
4014             -M[TD]*)                                            ;;
4015             *)                  echo $flag                      ;;
4016         esac
4017    done
4018 }
4019
4020 ccc_flags(){
4021     for flag; do
4022         case $flag in
4023             -std=c99)           echo -c99                       ;;
4024             -mcpu=*)            echo -arch ${flag#*=}           ;;
4025             -mieee)             echo -ieee                      ;;
4026             -O*|-fast)          echo $flag                      ;;
4027             -fno-math-errno)    echo -assume nomath_errno       ;;
4028             -g)                 echo -g3                        ;;
4029             -Wall)              echo -msg_enable level2         ;;
4030             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
4031             -Wl,*)              echo $flag                      ;;
4032             -f*|-W*)                                            ;;
4033             *)                  echo $flag                      ;;
4034         esac
4035    done
4036 }
4037
4038 cparser_flags(){
4039     for flag; do
4040         case $flag in
4041             -Wno-switch)             echo -Wno-switch-enum ;;
4042             -Wno-format-zero-length) ;;
4043             -Wdisabled-optimization) ;;
4044             -Wno-pointer-sign)       echo -Wno-other ;;
4045             *)                       echo $flag ;;
4046         esac
4047     done
4048 }
4049
4050 msvc_common_flags(){
4051     for flag; do
4052         case $flag in
4053             # In addition to specifying certain flags under the compiler
4054             # specific filters, they must be specified here as well or else the
4055             # generic catch all at the bottom will print the original flag.
4056             -Wall)                ;;
4057             -Wextra)              ;;
4058             -std=c99)             ;;
4059             # Common flags
4060             -fomit-frame-pointer) ;;
4061             -g)                   echo -Z7 ;;
4062             -fno-math-errno)      ;;
4063             -fno-common)          ;;
4064             -fno-signed-zeros)    ;;
4065             -fPIC)                ;;
4066             -mthumb)              ;;
4067             -march=*)             ;;
4068             -lz)                  echo zlib.lib ;;
4069             -lx264)               echo libx264.lib ;;
4070             -lstdc++)             ;;
4071             -l*)                  echo ${flag#-l}.lib ;;
4072             -LARGEADDRESSAWARE)   echo $flag ;;
4073             -L*)                  echo -libpath:${flag#-L} ;;
4074             *)                    echo $flag ;;
4075         esac
4076     done
4077 }
4078
4079 msvc_flags(){
4080     msvc_common_flags "$@"
4081     for flag; do
4082         case $flag in
4083             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4084                                        -wd4554 ;;
4085             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4086                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4087                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4088                                        -wd4307 \
4089                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4090         esac
4091     done
4092 }
4093
4094 icl_flags(){
4095     msvc_common_flags "$@"
4096     for flag; do
4097         case $flag in
4098             # Despite what Intel's documentation says -Wall, which is supported
4099             # on Windows, does enable remarks so disable them here.
4100             -Wall)                echo $flag -Qdiag-disable:remark ;;
4101             -std=c99)             echo -Qstd=c99 ;;
4102             -flto)                echo -ipo ;;
4103         esac
4104     done
4105 }
4106
4107 icc_flags(){
4108     for flag; do
4109         case $flag in
4110             -flto)                echo -ipo ;;
4111             *)                    echo $flag ;;
4112         esac
4113     done
4114 }
4115
4116 pgi_flags(){
4117     for flag; do
4118         case $flag in
4119             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4120             -fomit-frame-pointer) echo -Mnoframe ;;
4121             -g)                   echo -gopt ;;
4122             *)                    echo $flag ;;
4123         esac
4124     done
4125 }
4126
4127 suncc_flags(){
4128     for flag; do
4129         case $flag in
4130             -march=*|-mcpu=*)
4131                 case "${flag#*=}" in
4132                     native)                   echo -xtarget=native       ;;
4133                     v9|niagara)               echo -xarch=sparc          ;;
4134                     ultrasparc)               echo -xarch=sparcvis       ;;
4135                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4136                     i586|pentium)             echo -xchip=pentium        ;;
4137                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4138                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4139                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4140                     pentium4*)          echo -xtarget=pentium4           ;;
4141                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4142                     *-sse3)             echo -xarch=sse3                 ;;
4143                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4144                     bonnell)                   echo -xarch=ssse3         ;;
4145                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4146                     westmere)                  echo -xtarget=westmere    ;;
4147                     silvermont)                echo -xarch=sse4_2        ;;
4148                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4149                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4150                                                echo -xarch=avx           ;;
4151                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4152                     btver1)                    echo -xarch=amdsse4a      ;;
4153                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4154                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4155                     k8|opteron|athlon64|athlon-fx)
4156                                                echo -xarch=sse2a         ;;
4157                     athlon*)                   echo -xarch=pentium_proa  ;;
4158                 esac
4159                 ;;
4160             -std=c99)             echo -xc99              ;;
4161             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4162             -fPIC)                echo -KPIC -xcode=pic32 ;;
4163             -W*,*)                echo $flag              ;;
4164             -f*-*|-W*|-mimpure-text)                      ;;
4165             -shared)              echo -G                 ;;
4166             *)                    echo $flag              ;;
4167         esac
4168     done
4169 }
4170
4171 tms470_flags(){
4172     for flag; do
4173         case $flag in
4174             -march=*|-mcpu=*)
4175                 case "${flag#*=}" in
4176                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4177                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4178                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4179                     armv6*|arm11*)          echo -mv=6   ;;
4180                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4181                                             echo -mv=5e  ;;
4182                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4183                 esac
4184                 ;;
4185             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4186             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4187             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4188             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4189             -msoft-float)   echo --float_support=vfplib       ;;
4190             -O[0-3]|-mf=*)  echo $flag                        ;;
4191             -g)             echo -g -mn                       ;;
4192             -pds=*)         echo $flag                        ;;
4193             -D*|-I*)        echo $flag                        ;;
4194             --gcc|--abi=*)  echo $flag                        ;;
4195             -me)            echo $flag                        ;;
4196         esac
4197     done
4198 }
4199
4200 probe_cc(){
4201     pfx=$1
4202     _cc=$2
4203     first=$3
4204
4205     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4206     unset _ld_o _ldflags _ld_lib _ld_path
4207     unset _depflags _DEPCMD _DEPFLAGS
4208     _flags_filter=echo
4209
4210     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4211         true # no-op to avoid reading stdin in following checks
4212     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4213         _type=llvm_gcc
4214         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4215         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4216         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4217         _cflags_speed='-O3'
4218         _cflags_size='-Os'
4219     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4220         _type=gcc
4221         gcc_version=$($_cc --version | head -n1)
4222         gcc_basever=$($_cc -dumpversion)
4223         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4224         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4225         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4226         case $gcc_basever in
4227             2) ;;
4228             2.*) ;;
4229             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4230         esac
4231         if [ "$first" = true ]; then
4232             case $gcc_basever in
4233                 4.2*)
4234                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4235             esac
4236         fi
4237         _cflags_speed='-O3'
4238         _cflags_size='-Os'
4239     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4240         _type=icc
4241         _ident=$($_cc --version | head -n1)
4242         _depflags='-MMD'
4243         _cflags_speed='-O3'
4244         _cflags_size='-Os'
4245         _cflags_noopt='-O1'
4246         _flags_filter=icc_flags
4247     elif $_cc -v 2>&1 | grep -q xlc; then
4248         _type=xlc
4249         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4250         _cflags_speed='-O5'
4251         _cflags_size='-O5 -qcompact'
4252     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4253         _type=ccc
4254         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4255         _DEPFLAGS='-M'
4256         _cflags_speed='-fast'
4257         _cflags_size='-O1'
4258         _flags_filter=ccc_flags
4259     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4260         test -d "$sysroot" || die "No valid sysroot specified."
4261         _type=armcc
4262         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4263         armcc_conf="$PWD/armcc.conf"
4264         $_cc --arm_linux_configure                 \
4265              --arm_linux_config_file="$armcc_conf" \
4266              --configure_sysroot="$sysroot"        \
4267              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4268              die "Error creating armcc configuration file."
4269         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4270         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4271         as_default="${cross_prefix}gcc"
4272         _depflags='-MMD'
4273         _cflags_speed='-O3'
4274         _cflags_size='-Os'
4275     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4276         _type=tms470
4277         _ident=$($_cc -version | head -n1 | tr -s ' ')
4278         _flags='--gcc --abi=eabi -me'
4279         _cc_e='-ppl -fe=$@'
4280         _cc_o='-fe=$@'
4281         _depflags='-ppa -ppd=$(@:.o=.d)'
4282         _cflags_speed='-O3 -mf=5'
4283         _cflags_size='-O3 -mf=2'
4284         _flags_filter=tms470_flags
4285     elif $_cc -v 2>&1 | grep -q clang; then
4286         _type=clang
4287         _ident=$($_cc --version 2>/dev/null | head -n1)
4288         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4289         _cflags_speed='-O3'
4290         _cflags_size='-Oz'
4291     elif $_cc -V 2>&1 | grep -q Sun; then
4292         _type=suncc
4293         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4294         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4295         _DEPFLAGS='-xM1 -xc99'
4296         _ldflags='-std=c99'
4297         _cflags_speed='-O5'
4298         _cflags_size='-O5 -xspace'
4299         _flags_filter=suncc_flags
4300     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4301         _type=pathscale
4302         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4303         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4304         _cflags_speed='-O2'
4305         _cflags_size='-Os'
4306         _flags_filter='filter_out -Wdisabled-optimization'
4307     elif $_cc -v 2>&1 | grep -q Open64; then
4308         _type=open64
4309         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4310         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4311         _cflags_speed='-O2'
4312         _cflags_size='-Os'
4313         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4314     elif $_cc -V 2>&1 | grep -q Portland; then
4315         _type=pgi
4316         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4317         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4318         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4319         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4320         _cflags_noopt="-O"
4321         _flags_filter=pgi_flags
4322     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4323         _type=armasm
4324         _ident=$($_cc | head -n1)
4325         # 4509: "This form of conditional instruction is deprecated"
4326         _flags="-nologo -ignore 4509"
4327         _flags_filter=armasm_flags
4328     elif $_cc 2>&1 | grep -q Intel; then
4329         _type=icl
4330         _ident=$($_cc 2>&1 | head -n1)
4331         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4332         # Not only is O3 broken on 13.x+ but it is slower on all previous
4333         # versions (tested) as well.
4334         _cflags_speed="-O2"
4335         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4336         if $_cc 2>&1 | grep -q Linker; then
4337             _ld_o='-out:$@'
4338         else
4339             _ld_o='-Fe$@'
4340         fi
4341         _cc_o='-Fo$@'
4342         _cc_e='-P'
4343         _flags_filter=icl_flags
4344         _ld_lib='lib%.a'
4345         _ld_path='-libpath:'
4346         # -Qdiag-error to make icl error when seeing certain unknown arguments
4347         _flags='-nologo -Qdiag-error:4044,10157'
4348         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4349         # with MSVC which enables it by default.
4350         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4351         disable stripping
4352     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4353         # lld can emulate multiple different linkers; in ms link.exe mode,
4354         # the -? parameter gives the help output which contains an identifyable
4355         # string, while it gives an error in other modes.
4356         _type=lld-link
4357         # The link.exe mode doesn't have a switch for getting the version,
4358         # but we can force it back to gnu mode and get the version from there.
4359         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4360         _ld_o='-out:$@'
4361         _flags_filter=msvc_flags
4362         _ld_lib='lib%.a'
4363         _ld_path='-libpath:'
4364     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4365         _type=msvc
4366         _ident=$($_cc 2>&1 | head -n1)
4367         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4368         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4369         _cflags_speed="-O2"
4370         _cflags_size="-O1"
4371         _cflags_noopt="-O1"
4372         if $_cc -nologo- 2>&1 | grep -q Linker; then
4373             _ld_o='-out:$@'
4374         else
4375             _ld_o='-Fe$@'
4376         fi
4377         _cc_o='-Fo$@'
4378         _cc_e='-P -Fi$@'
4379         _flags_filter=msvc_flags
4380         _ld_lib='lib%.a'
4381         _ld_path='-libpath:'
4382         _flags='-nologo'
4383         disable stripping
4384     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4385         _type=cparser
4386         _ident=$($_cc --version | head -n1)
4387         _depflags='-MMD'
4388         _cflags_speed='-O4'
4389         _cflags_size='-O2'
4390         _flags_filter=cparser_flags
4391     fi
4392
4393     eval ${pfx}_type=\$_type
4394     eval ${pfx}_ident=\$_ident
4395 }
4396
4397 set_ccvars(){
4398     eval ${1}_C=\${_cc_c-\${${1}_C}}
4399     eval ${1}_E=\${_cc_e-\${${1}_E}}
4400     eval ${1}_O=\${_cc_o-\${${1}_O}}
4401
4402     if [ -n "$_depflags" ]; then
4403         eval ${1}_DEPFLAGS=\$_depflags
4404     else
4405         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4406         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4407         eval DEP${1}FLAGS=\$_flags
4408     fi
4409 }
4410
4411 probe_cc cc "$cc" "true"
4412 cflags_filter=$_flags_filter
4413 cflags_speed=$_cflags_speed
4414 cflags_size=$_cflags_size
4415 cflags_noopt=$_cflags_noopt
4416 add_cflags $_flags $_cflags
4417 cc_ldflags=$_ldflags
4418 set_ccvars CC
4419 set_ccvars CXX
4420
4421 probe_cc hostcc "$host_cc"
4422 host_cflags_filter=$_flags_filter
4423 host_cflags_speed=$_cflags_speed
4424 add_host_cflags  $_flags $_cflags
4425 set_ccvars HOSTCC
4426
4427 test -n "$cc_type" && enable $cc_type ||
4428     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4429
4430 : ${as_default:=$cc}
4431 : ${objcc_default:=$cc}
4432 : ${dep_cc_default:=$cc}
4433 : ${ld_default:=$cc}
4434 : ${host_ld_default:=$host_cc}
4435 set_default ar as objcc dep_cc ld ln_s host_ld windres
4436
4437 probe_cc as "$as"
4438 asflags_filter=$_flags_filter
4439 add_asflags $_flags $_cflags
4440 set_ccvars AS
4441
4442 probe_cc objcc "$objcc"
4443 objcflags_filter=$_flags_filter
4444 add_objcflags $_flags $_cflags
4445 set_ccvars OBJC
4446
4447 probe_cc ld "$ld"
4448 ldflags_filter=$_flags_filter
4449 add_ldflags $_flags $_ldflags
4450 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4451 LD_O=${_ld_o-$LD_O}
4452 LD_LIB=${_ld_lib-$LD_LIB}
4453 LD_PATH=${_ld_path-$LD_PATH}
4454
4455 probe_cc hostld "$host_ld"
4456 host_ldflags_filter=$_flags_filter
4457 add_host_ldflags $_flags $_ldflags
4458 HOSTLD_O=${_ld_o-$HOSTLD_O}
4459
4460 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4461     probe_cc depcc "$dep_cc"
4462     CCDEP=${_DEPCMD:-$DEPCMD}
4463     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4464     DEPCCFLAGS=$_flags
4465 fi
4466
4467 if $ar 2>&1 | grep -q Microsoft; then
4468     arflags="-nologo"
4469     ar_o='-out:$@'
4470 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4471     arflags="rq"
4472     ar_o='$@'
4473 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4474     arflags='-Xany -r -c'
4475     ar_o='$@'
4476 elif $ar 2>&1 | grep -q "\[D\] "; then
4477     arflags="rcD"
4478     ar_o='$@'
4479 else
4480     arflags="rc"
4481     ar_o='$@'
4482 fi
4483
4484 add_cflags $extra_cflags
4485 add_cxxflags $extra_cxxflags
4486 add_objcflags $extra_objcflags
4487 add_asflags $extra_cflags
4488
4489 if test -n "$sysroot"; then
4490     case "$cc_type" in
4491         gcc|llvm_gcc|clang)
4492             add_cppflags --sysroot="$sysroot"
4493             add_ldflags --sysroot="$sysroot"
4494 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4495             add_cppflags -isysroot "$sysroot"
4496             add_ldflags -isysroot "$sysroot"
4497         ;;
4498         tms470)
4499             add_cppflags -I"$sysinclude"
4500             add_ldflags  --sysroot="$sysroot"
4501         ;;
4502     esac
4503 fi
4504
4505 if test "$cpu" = host; then
4506     enabled cross_compile &&
4507         die "--cpu=host makes no sense when cross-compiling."
4508
4509     case "$cc_type" in
4510         gcc|llvm_gcc)
4511             check_native(){
4512                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4513                 sed -n "/cc1.*$1=/{
4514                             s/.*$1=\\([^ ]*\\).*/\\1/
4515                             p
4516                             q
4517                         }" $TMPE
4518             }
4519             cpu=$(check_native -march || check_native -mcpu)
4520         ;;
4521         clang)
4522             check_native(){
4523                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4524                 sed -n "/cc1.*-target-cpu /{
4525                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4526                             p
4527                             q
4528                         }" $TMPE
4529             }
4530             cpu=$(check_native -march)
4531         ;;
4532     esac
4533
4534     test "${cpu:-host}" = host &&
4535         die "--cpu=host not supported with compiler $cc"
4536 fi
4537
4538 # Deal with common $arch aliases
4539 case "$arch" in
4540     aarch64|arm64)
4541         arch="aarch64"
4542     ;;
4543     arm*|iPad*|iPhone*)
4544         arch="arm"
4545     ;;
4546     mips*|IP*)
4547         case "$arch" in
4548         *el)
4549             add_cppflags -EL
4550             add_ldflags -EL
4551         ;;
4552         *eb)
4553             add_cppflags -EB
4554             add_ldflags -EB
4555         ;;
4556         esac
4557         arch="mips"
4558     ;;
4559     parisc*|hppa*)
4560         arch="parisc"
4561     ;;
4562     "Power Macintosh"|ppc*|powerpc*)
4563         arch="ppc"
4564     ;;
4565     s390|s390x)
4566         arch="s390"
4567     ;;
4568     sh4|sh)
4569         arch="sh4"
4570     ;;
4571     sun4*|sparc*)
4572         arch="sparc"
4573     ;;
4574     tilegx|tile-gx)
4575         arch="tilegx"
4576     ;;
4577     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4578         arch="x86"
4579     ;;
4580 esac
4581
4582 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4583 enable $arch
4584
4585 # Add processor-specific flags
4586 if enabled aarch64; then
4587
4588     case $cpu in
4589         armv*)
4590             cpuflags="-march=$cpu"
4591         ;;
4592         *)
4593             cpuflags="-mcpu=$cpu"
4594         ;;
4595     esac
4596
4597 elif enabled alpha; then
4598
4599     cpuflags="-mcpu=$cpu"
4600
4601 elif enabled arm; then
4602
4603     check_arm_arch() {
4604         check_cpp_condition stddef.h \
4605             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4606             $cpuflags
4607     }
4608
4609     probe_arm_arch() {
4610         if   check_arm_arch 4;        then echo armv4
4611         elif check_arm_arch 4T;       then echo armv4t
4612         elif check_arm_arch 5;        then echo armv5
4613         elif check_arm_arch 5E;       then echo armv5e
4614         elif check_arm_arch 5T;       then echo armv5t
4615         elif check_arm_arch 5TE;      then echo armv5te
4616         elif check_arm_arch 5TEJ;     then echo armv5te
4617         elif check_arm_arch 6;        then echo armv6
4618         elif check_arm_arch 6J;       then echo armv6j
4619         elif check_arm_arch 6K;       then echo armv6k
4620         elif check_arm_arch 6Z;       then echo armv6z
4621         elif check_arm_arch 6ZK;      then echo armv6zk
4622         elif check_arm_arch 6T2;      then echo armv6t2
4623         elif check_arm_arch 7;        then echo armv7
4624         elif check_arm_arch 7A  7_A;  then echo armv7-a
4625         elif check_arm_arch 7S;       then echo armv7-a
4626         elif check_arm_arch 7R  7_R;  then echo armv7-r
4627         elif check_arm_arch 7M  7_M;  then echo armv7-m
4628         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4629         elif check_arm_arch 8A  8_A;  then echo armv8-a
4630         fi
4631     }
4632
4633     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4634
4635     case $cpu in
4636         armv*)
4637             cpuflags="-march=$cpu"
4638             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4639         ;;
4640         *)
4641             cpuflags="-mcpu=$cpu"
4642             case $cpu in
4643                 cortex-a*)                               subarch=armv7a  ;;
4644                 cortex-r*)                               subarch=armv7r  ;;
4645                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4646                 arm11*)                                  subarch=armv6   ;;
4647                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4648                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4649                 *)                             subarch=$(probe_arm_arch) ;;
4650             esac
4651         ;;
4652     esac
4653
4654     case "$subarch" in
4655         armv5t*)    enable fast_clz                ;;
4656         armv[6-8]*)
4657             enable fast_clz
4658             disabled fast_unaligned || enable fast_unaligned
4659             ;;
4660     esac
4661
4662 elif enabled avr32; then
4663
4664     case $cpu in
4665         ap7[02]0[0-2])
4666             subarch="avr32_ap"
4667             cpuflags="-mpart=$cpu"
4668         ;;
4669         ap)
4670             subarch="avr32_ap"
4671             cpuflags="-march=$cpu"
4672         ;;
4673         uc3[ab]*)
4674             subarch="avr32_uc"
4675             cpuflags="-mcpu=$cpu"
4676         ;;
4677         uc)
4678             subarch="avr32_uc"
4679             cpuflags="-march=$cpu"
4680         ;;
4681     esac
4682
4683 elif enabled bfin; then
4684
4685     cpuflags="-mcpu=$cpu"
4686
4687 elif enabled mips; then
4688
4689     cpuflags="-march=$cpu"
4690
4691     if [ "$cpu" != "generic" ]; then
4692         disable mips32r2
4693         disable mips32r5
4694         disable mips64r2
4695         disable mips32r6
4696         disable mips64r6
4697         disable loongson2
4698         disable loongson3
4699
4700         case $cpu in
4701             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4702                 enable mips32r2
4703                 disable msa
4704             ;;
4705             p5600|i6400|p6600)
4706                 disable mipsdsp
4707                 disable mipsdspr2
4708             ;;
4709             loongson*)
4710                 enable loongson2
4711                 enable loongson3
4712                 enable local_aligned_8 local_aligned_16 local_aligned_32
4713                 enable simd_align_16
4714                 enable fast_64bit
4715                 enable fast_clz
4716                 enable fast_cmov
4717                 enable fast_unaligned
4718                 disable aligned_stack
4719                 disable mipsfpu
4720                 disable mipsdsp
4721                 disable mipsdspr2
4722                 case $cpu in
4723                     loongson3*)
4724                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4725                     ;;
4726                     loongson2e)
4727                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4728                     ;;
4729                     loongson2f)
4730                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4731                     ;;
4732                 esac
4733             ;;
4734             *)
4735                 # Unknown CPU. Disable everything.
4736                 warn "unknown CPU. Disabling all MIPS optimizations."
4737                 disable mipsfpu
4738                 disable mipsdsp
4739                 disable mipsdspr2
4740                 disable msa
4741                 disable mmi
4742             ;;
4743         esac
4744
4745         case $cpu in
4746             24kc)
4747                 disable mipsfpu
4748                 disable mipsdsp
4749                 disable mipsdspr2
4750             ;;
4751             24kf*)
4752                 disable mipsdsp
4753                 disable mipsdspr2
4754             ;;
4755             24kec|34kc|1004kc)
4756                 disable mipsfpu
4757                 disable mipsdspr2
4758             ;;
4759             24kef*|34kf*|1004kf*)
4760                 disable mipsdspr2
4761             ;;
4762             74kc)
4763                 disable mipsfpu
4764             ;;
4765             p5600)
4766                 enable mips32r5
4767                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4768             ;;
4769             i6400)
4770                 enable mips64r6
4771                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4772             ;;
4773             p6600)
4774                 enable mips64r6
4775                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4776             ;;
4777         esac
4778     else
4779         # We do not disable anything. Is up to the user to disable the unwanted features.
4780         warn 'generic cpu selected'
4781     fi
4782
4783 elif enabled ppc; then
4784
4785     disable ldbrx
4786
4787     case $(tolower $cpu) in
4788         601|ppc601|powerpc601)
4789             cpuflags="-mcpu=601"
4790             disable altivec
4791         ;;
4792         603*|ppc603*|powerpc603*)
4793             cpuflags="-mcpu=603"
4794             disable altivec
4795         ;;
4796         604*|ppc604*|powerpc604*)
4797             cpuflags="-mcpu=604"
4798             disable altivec
4799         ;;
4800         g3|75*|ppc75*|powerpc75*)
4801             cpuflags="-mcpu=750"
4802             disable altivec
4803         ;;
4804         g4|745*|ppc745*|powerpc745*)
4805             cpuflags="-mcpu=7450"
4806             disable vsx
4807         ;;
4808         74*|ppc74*|powerpc74*)
4809             cpuflags="-mcpu=7400"
4810             disable vsx
4811         ;;
4812         g5|970|ppc970|powerpc970)
4813             cpuflags="-mcpu=970"
4814             disable vsx
4815         ;;
4816         power[3-6]*)
4817             cpuflags="-mcpu=$cpu"
4818             disable vsx
4819         ;;
4820         power[7-8]*)
4821             cpuflags="-mcpu=$cpu"
4822         ;;
4823         cell)
4824             cpuflags="-mcpu=cell"
4825             enable ldbrx
4826             disable vsx
4827         ;;
4828         e500mc)
4829             cpuflags="-mcpu=e500mc"
4830             disable altivec
4831         ;;
4832         e500v2)
4833             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4834             disable altivec
4835             disable dcbzl
4836         ;;
4837         e500)
4838             cpuflags="-mcpu=8540 -mhard-float"
4839             disable altivec
4840             disable dcbzl
4841         ;;
4842     esac
4843
4844 elif enabled sparc; then
4845
4846     case $cpu in
4847         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4848             cpuflags="-mcpu=$cpu"
4849         ;;
4850         ultrasparc*|niagara[234])
4851             cpuflags="-mcpu=$cpu"
4852         ;;
4853     esac
4854
4855 elif enabled x86; then
4856
4857     case $cpu in
4858         i[345]86|pentium)
4859             cpuflags="-march=$cpu"
4860             disable i686
4861             disable mmx
4862         ;;
4863         # targets that do NOT support nopl and conditional mov (cmov)
4864         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4865             cpuflags="-march=$cpu"
4866             disable i686
4867         ;;
4868         # targets that do support nopl and conditional mov (cmov)
4869         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4870         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4871         |amdfam10|barcelona|b[dt]ver*|znver*)
4872             cpuflags="-march=$cpu"
4873             enable i686
4874             enable fast_cmov
4875         ;;
4876         # targets that do support conditional mov but on which it's slow
4877         pentium4|pentium4m|prescott|nocona)
4878             cpuflags="-march=$cpu"
4879             enable i686
4880             disable fast_cmov
4881         ;;
4882     esac
4883
4884 fi
4885
4886 if [ "$cpu" != generic ]; then
4887     add_cflags  $cpuflags
4888     add_asflags $cpuflags
4889     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4890 fi
4891
4892 # compiler sanity check
4893 check_exec <<EOF
4894 int main(void){ return 0; }
4895 EOF
4896 if test "$?" != 0; then
4897     echo "$cc is unable to create an executable file."
4898     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4899         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4900         echo "Only do this if you know what cross compiling means."
4901     fi
4902     die "C compiler test failed."
4903 fi
4904
4905 add_cppflags -D_ISOC99_SOURCE
4906 add_cxxflags -D__STDC_CONSTANT_MACROS
4907 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4908
4909 # some compilers silently accept -std=c11, so we also need to check that the
4910 # version macro is defined properly
4911 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
4912     add_cflags -std=c11 ||
4913     check_cflags -std=c99
4914
4915 check_cppflags -D_FILE_OFFSET_BITS=64
4916 check_cppflags -D_LARGEFILE_SOURCE
4917
4918 add_host_cppflags -D_ISOC99_SOURCE
4919 check_host_cflags -std=c99
4920 check_host_cflags -Wall
4921 check_host_cflags $host_cflags_speed