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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --enable-rpath           use rpath to allow installing libraries in paths
  91                            not part of the dynamic linker search path
  92
  93 Licensing options:
  94   --enable-gpl             allow use of GPL code, the resulting libs
  95                            and binaries will be under GPL [no]
  96   --enable-version3        upgrade (L)GPL to version 3 [no]
  97   --enable-nonfree         allow use of nonfree code, the resulting libs
  98                            and binaries will be unredistributable [no]
  99
 100 Configuration options:
 101   --disable-static         do not build static libraries [no]
 102   --enable-shared          build shared libraries [no]
 103   --enable-small           optimize for size instead of speed
 104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 105   --enable-gray            enable full grayscale support (slower color)
 106   --disable-swscale-alpha  disable alpha channel support in swscale
 107   --disable-all            disable building components, libraries and programs
 108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 109   --enable-raise-major     increase major version numbers in sonames [no]
 110
 111 Program options:
 112   --disable-programs       do not build command line programs
 113   --disable-ffmpeg         disable ffmpeg build
 114   --disable-ffplay         disable ffplay build
 115   --disable-ffprobe        disable ffprobe build
 116   --disable-ffserver       disable ffserver build
 117
 118 Documentation options:
 119   --disable-doc            do not build documentation
 120   --disable-htmlpages      do not build HTML documentation pages
 121   --disable-manpages       do not build man documentation pages
 122   --disable-podpages       do not build POD documentation pages
 123   --disable-txtpages       do not build text documentation pages
 124
 125 Component options:
 126   --disable-avdevice       disable libavdevice build
 127   --disable-avcodec        disable libavcodec build
 128   --disable-avformat       disable libavformat build
 129   --disable-avutil         disable libavutil build
 130   --disable-swresample     disable libswresample build
 131   --disable-swscale        disable libswscale build
 132   --disable-postproc       disable libpostproc build
 133   --disable-avfilter       disable libavfilter build
 134   --enable-avresample      enable libavresample build [no]
 135   --disable-pthreads       disable pthreads [auto]
 136   --disable-w32threads     disable Win32 threads [auto]
 137   --disable-os2threads     disable OS/2 threads [auto]
 138   --disable-network        disable network support [no]
 139   --disable-dct            disable DCT code
 140   --disable-dwt            disable DWT code
 141   --disable-error-resilience disable error resilience code
 142   --disable-lsp            disable LSP code
 143   --disable-lzo            disable LZO decoder code
 144   --disable-mdct           disable MDCT code
 145   --disable-rdft           disable RDFT code
 146   --disable-fft            disable FFT code
 147
 148 Hardware accelerators:
 149   --disable-dxva2          disable DXVA2 code [autodetect]
 150   --disable-vaapi          disable VAAPI code [autodetect]
 151   --disable-vda            disable VDA code [autodetect]
 152   --disable-vdpau          disable VDPAU code [autodetect]
 153
 154 Individual component options:
 155   --disable-everything     disable all components listed below
 156   --disable-encoder=NAME   disable encoder NAME
 157   --enable-encoder=NAME    enable encoder NAME
 158   --disable-encoders       disable all encoders
 159   --disable-decoder=NAME   disable decoder NAME
 160   --enable-decoder=NAME    enable decoder NAME
 161   --disable-decoders       disable all decoders
 162   --disable-hwaccel=NAME   disable hwaccel NAME
 163   --enable-hwaccel=NAME    enable hwaccel NAME
 164   --disable-hwaccels       disable all hwaccels
 165   --disable-muxer=NAME     disable muxer NAME
 166   --enable-muxer=NAME      enable muxer NAME
 167   --disable-muxers         disable all muxers
 168   --disable-demuxer=NAME   disable demuxer NAME
 169   --enable-demuxer=NAME    enable demuxer NAME
 170   --disable-demuxers       disable all demuxers
 171   --enable-parser=NAME     enable parser NAME
 172   --disable-parser=NAME    disable parser NAME
 173   --disable-parsers        disable all parsers
 174   --enable-bsf=NAME        enable bitstream filter NAME
 175   --disable-bsf=NAME       disable bitstream filter NAME
 176   --disable-bsfs           disable all bitstream filters
 177   --enable-protocol=NAME   enable protocol NAME
 178   --disable-protocol=NAME  disable protocol NAME
 179   --disable-protocols      disable all protocols
 180   --enable-indev=NAME      enable input device NAME
 181   --disable-indev=NAME     disable input device NAME
 182   --disable-indevs         disable input devices
 183   --enable-outdev=NAME     enable output device NAME
 184   --disable-outdev=NAME    disable output device NAME
 185   --disable-outdevs        disable output devices
 186   --disable-devices        disable all devices
 187   --enable-filter=NAME     enable filter NAME
 188   --disable-filter=NAME    disable filter NAME
 189   --disable-filters        disable all filters
 190
 191 External library support:
 192   --enable-avisynth        enable reading of AviSynth script files [no]
 193   --disable-bzlib          disable bzlib [autodetect]
 194   --enable-fontconfig      enable fontconfig
 195   --enable-frei0r          enable frei0r video filtering
 196   --enable-gnutls          enable gnutls [no]
 197   --disable-iconv          disable iconv [autodetect]
 198   --enable-ladspa          enable LADSPA audio filtering
 199   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 200   --enable-libass          enable libass subtitles rendering [no]
 201   --enable-libbluray       enable BluRay reading using libbluray [no]
 202   --enable-libbs2b         enable bs2b DSP library [no]
 203   --enable-libcaca         enable textual display using libcaca
 204   --enable-libcelt         enable CELT decoding via libcelt [no]
 205   --enable-libcdio         enable audio CD grabbing with libcdio
 206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 207                            and libraw1394 [no]
 208   --enable-libfaac         enable AAC encoding via libfaac [no]
 209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 211   --enable-libfreetype     enable libfreetype [no]
 212   --enable-libfribidi      enable libfribidi [no]
 213   --enable-libgme          enable Game Music Emu via libgme [no]
 214   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 215   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 216   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 217   --enable-libmodplug      enable ModPlug via libmodplug [no]
 218   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 219   --enable-libnut          enable NUT (de)muxing via libnut,
 220                            native (de)muxer exists [no]
 221   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 222   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 223   --enable-libopencv       enable video filtering via libopencv [no]
 224   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 225   --enable-libopus         enable Opus de/encoding via libopus [no]
 226   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 227   --enable-libquvi         enable quvi input via libquvi [no]
 228   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 229   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 230   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 231   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 232   --enable-libsoxr         enable Include libsoxr resampling [no]
 233   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 234   --enable-libssh          enable SFTP protocol via libssh [no]
 235   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 236   --enable-libtheora       enable Theora encoding via libtheora [no]
 237   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 238   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 239   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 240   --enable-libvidstab      enable video stabilization using vid.stab [no]
 241   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 242   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 243   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 244                            native implementation exists [no]
 245   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 246   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 247   --enable-libwebp         enable WebP encoding via libwebp [no]
 248   --enable-libx264         enable H.264 encoding via x264 [no]
 249   --enable-libx265         enable HEVC encoding via x265 [no]
 250   --enable-libxavs         enable AVS encoding via xavs [no]
 251   --enable-libxvid         enable Xvid encoding via xvidcore,
 252                            native MPEG-4/Xvid encoder exists [no]
 253   --enable-libzmq          enable message passing via libzmq [no]
 254   --enable-libzvbi         enable teletext support via libzvbi [no]
 255   --enable-decklink        enable Blackmagick DeckLink output [no]
 256   --enable-openal          enable OpenAL 1.1 capture support [no]
 257   --enable-opencl          enable OpenCL code
 258   --enable-opengl          enable OpenGL rendering [no]
 259   --enable-openssl         enable openssl [no]
 260   --enable-x11grab         enable X11 grabbing [no]
 261   --disable-xlib           disable xlib [autodetect]
 262   --disable-zlib           disable zlib [autodetect]
 263
 264 Toolchain options:
 265   --arch=ARCH              select architecture [$arch]
 266   --cpu=CPU                select the minimum required CPU (affects
 267                            instruction selection, may crash on older CPUs)
 268   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 269   --progs-suffix=SUFFIX    program name suffix []
 270   --enable-cross-compile   assume a cross-compiler is used
 271   --sysroot=PATH           root of cross-build tree
 272   --sysinclude=PATH        location of cross-build system headers
 273   --target-os=OS           compiler targets OS [$target_os]
 274   --target-exec=CMD        command to run executables on target
 275   --target-path=DIR        path to view of build directory on target
 276   --target-samples=DIR     path to samples directory on target
 277   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 278   --toolchain=NAME         set tool defaults according to NAME
 279   --nm=NM                  use nm tool NM [$nm_default]
 280   --ar=AR                  use archive tool AR [$ar_default]
 281   --as=AS                  use assembler AS [$as_default]
 282   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 283   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 284   --cc=CC                  use C compiler CC [$cc_default]
 285   --cxx=CXX                use C compiler CXX [$cxx_default]
 286   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 287   --ld=LD                  use linker LD [$ld_default]
 288   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 289   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 290   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 291   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 292   --host-cc=HOSTCC         use host C compiler HOSTCC
 293   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 294   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 295   --host-ld=HOSTLD         use host linker HOSTLD
 296   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 297   --host-libs=HLIBS        use libs HLIBS when linking for host
 298   --host-os=OS             compiler host OS [$target_os]
 299   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 300   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 301   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 302   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 303   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 304   --extra-version=STRING   version string suffix []
 305   --optflags=OPTFLAGS      override optimization-related compiler flags
 306   --build-suffix=SUFFIX    library name suffix []
 307   --enable-pic             build position-independent code
 308   --enable-thumb           compile for Thumb instruction set
 309   --enable-lto             use link-time optimization
 310
 311 Advanced options (experts only):
 312   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 313   --disable-symver         disable symbol versioning
 314   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 315   --disable-safe-bitstream-reader
 316                            disable buffer boundary checking in bitreaders
 317                            (faster, but may crash)
 318   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 319   --enable-sram            allow use of on-chip SRAM
 320   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 321
 322 Optimization options (experts only):
 323   --disable-asm            disable all assembly optimizations
 324   --disable-altivec        disable AltiVec optimizations
 325   --disable-amd3dnow       disable 3DNow! optimizations
 326   --disable-amd3dnowext    disable 3DNow! extended optimizations
 327   --disable-mmx            disable MMX optimizations
 328   --disable-mmxext         disable MMXEXT optimizations
 329   --disable-sse            disable SSE optimizations
 330   --disable-sse2           disable SSE2 optimizations
 331   --disable-sse3           disable SSE3 optimizations
 332   --disable-ssse3          disable SSSE3 optimizations
 333   --disable-sse4           disable SSE4 optimizations
 334   --disable-sse42          disable SSE4.2 optimizations
 335   --disable-avx            disable AVX optimizations
 336   --disable-xop            disable XOP optimizations
 337   --disable-fma3           disable FMA3 optimizations
 338   --disable-fma4           disable FMA4 optimizations
 339   --disable-avx2           disable AVX2 optimizations
 340   --disable-armv5te        disable armv5te optimizations
 341   --disable-armv6          disable armv6 optimizations
 342   --disable-armv6t2        disable armv6t2 optimizations
 343   --disable-vfp            disable VFP optimizations
 344   --disable-neon           disable NEON optimizations
 345   --disable-inline-asm     disable use of inline assembly
 346   --disable-yasm           disable use of nasm/yasm assembly
 347   --disable-mips32r2       disable MIPS32R2 optimizations
 348   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 349   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 350   --disable-mipsfpu        disable floating point MIPS optimizations
 351   --disable-fast-unaligned consider unaligned accesses slow
 352
 353 Developer options (useful when working on FFmpeg itself):
 354   --disable-debug          disable debugging symbols
 355   --enable-debug=LEVEL     set the debug level [$debuglevel]
 356   --disable-optimizations  disable compiler optimizations
 357   --enable-extra-warnings  enable more compiler warnings
 358   --disable-stripping      disable stripping of executables and shared libraries
 359   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 360                            2 causes a slowdown at runtime.
 361   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 362   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 363                            leaks and errors, using the specified valgrind binary.
 364                            Cannot be combined with --target-exec
 365   --enable-ftrapv          Trap arithmetic overflows
 366   --samples=PATH           location of test samples for FATE, if not set use
 367                            \$FATE_SAMPLES at make invocation time.
 368   --enable-neon-clobber-test check NEON registers for clobbering (should be
 369                            used only for debugging purposes)
 370   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 371                            should be used only for debugging purposes)
 372   --enable-random          randomly enable/disable components
 373   --disable-random
 374   --enable-random=LIST     randomly enable/disable specific components or
 375   --disable-random=LIST    component groups. LIST is a comma-separated list
 376                            of NAME[:PROB] entries where NAME is a component
 377                            (group) and PROB the probability associated with
 378                            NAME (default 0.5).
 379   --random-seed=VALUE      seed value for --enable/disable-random
 380
 381 NOTE: Object files are built at the place where configure is launched.
 382 EOF
 383   exit 0
 384 }
 385
 386 quotes='""'
 387
 388 log(){
 389     echo "$@" >> $logfile
 390 }
 391
 392 log_file(){
 393     log BEGIN $1
 394     pr -n -t $1 >> $logfile
 395     log END $1
 396 }
 397
 398 echolog(){
 399     log "$@"
 400     echo "$@"
 401 }
 402
 403 warn(){
 404     log "WARNING: $*"
 405     WARNINGS="${WARNINGS}WARNING: $*\n"
 406 }
 407
 408 die(){
 409     echolog "$@"
 410     cat <<EOF
 411
 412 If you think configure made a mistake, make sure you are using the latest
 413 version from Git.  If the latest version fails, report the problem to the
 414 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 415 EOF
 416     if disabled logging; then
 417         cat <<EOF
 418 Rerun configure with logging enabled (do not use --disable-logging), and
 419 include the log this produces with your report.
 420 EOF
 421     else
 422         cat <<EOF
 423 Include the log file "$logfile" produced by configure as this will help
 424 solve the problem.
 425 EOF
 426     fi
 427     exit 1
 428 }
 429
 430 # Avoid locale weirdness, besides we really just want to translate ASCII.
 431 toupper(){
 432     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 433 }
 434
 435 tolower(){
 436     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 437 }
 438
 439 c_escape(){
 440     echo "$*" | sed 's/["\\]/\\\0/g'
 441 }
 442
 443 sh_quote(){
 444     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 445     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 446     echo "$v"
 447 }
 448
 449 cleanws(){
 450     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 451 }
 452
 453 filter(){
 454     pat=$1
 455     shift
 456     for v; do
 457         eval "case $v in $pat) echo $v ;; esac"
 458     done
 459 }
 460
 461 filter_out(){
 462     pat=$1
 463     shift
 464     for v; do
 465         eval "case $v in $pat) ;; *) echo $v ;; esac"
 466     done
 467 }
 468
 469 map(){
 470     m=$1
 471     shift
 472     for v; do eval $m; done
 473 }
 474
 475 add_suffix(){
 476     suffix=$1
 477     shift
 478     for v; do echo ${v}${suffix}; done
 479 }
 480
 481 set_all(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         eval $var=$value
 486     done
 487 }
 488
 489 set_weak(){
 490     value=$1
 491     shift
 492     for var; do
 493         eval : \${$var:=$value}
 494     done
 495 }
 496
 497 sanitize_var_name(){
 498     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 499 }
 500
 501 set_safe(){
 502     var=$1
 503     shift
 504     eval $(sanitize_var_name "$var")='$*'
 505 }
 506
 507 get_safe(){
 508     eval echo \$$(sanitize_var_name "$1")
 509 }
 510
 511 pushvar(){
 512     for pvar in $*; do
 513         eval level=\${${pvar}_level:=0}
 514         eval ${pvar}_${level}="\$$pvar"
 515         eval ${pvar}_level=$(($level+1))
 516     done
 517 }
 518
 519 popvar(){
 520     for pvar in $*; do
 521         eval level=\${${pvar}_level:-0}
 522         test $level = 0 && continue
 523         eval level=$(($level-1))
 524         eval $pvar="\${${pvar}_${level}}"
 525         eval ${pvar}_level=$level
 526         eval unset ${pvar}_${level}
 527     done
 528 }
 529
 530 enable(){
 531     set_all yes $*
 532 }
 533
 534 disable(){
 535     set_all no $*
 536 }
 537
 538 enable_weak(){
 539     set_weak yes $*
 540 }
 541
 542 disable_weak(){
 543     set_weak no $*
 544 }
 545
 546 enable_safe(){
 547     for var; do
 548         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 549     done
 550 }
 551
 552 disable_safe(){
 553     for var; do
 554         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 555     done
 556 }
 557
 558 do_enable_deep(){
 559     for var; do
 560         enabled $var && continue
 561         eval sel="\$${var}_select"
 562         eval sgs="\$${var}_suggest"
 563         pushvar var sgs
 564         enable_deep $sel
 565         popvar sgs
 566         enable_deep_weak $sgs
 567         popvar var
 568     done
 569 }
 570
 571 enable_deep(){
 572     do_enable_deep $*
 573     enable $*
 574 }
 575
 576 enable_deep_weak(){
 577     for var; do
 578         disabled $var && continue
 579         pushvar var
 580         do_enable_deep $var
 581         popvar var
 582         enable_weak $var
 583     done
 584 }
 585
 586 enabled(){
 587     test "${1#!}" = "$1" && op== || op=!=
 588     eval test "x\$${1#!}" $op "xyes"
 589 }
 590
 591 disabled(){
 592     test "${1#!}" = "$1" && op== || op=!=
 593     eval test "x\$${1#!}" $op "xno"
 594 }
 595
 596 enabled_all(){
 597     for opt; do
 598         enabled $opt || return 1
 599     done
 600 }
 601
 602 disabled_all(){
 603     for opt; do
 604         disabled $opt || return 1
 605     done
 606 }
 607
 608 enabled_any(){
 609     for opt; do
 610         enabled $opt && return 0
 611     done
 612 }
 613
 614 disabled_any(){
 615     for opt; do
 616         disabled $opt && return 0
 617     done
 618     return 1
 619 }
 620
 621 set_default(){
 622     for opt; do
 623         eval : \${$opt:=\$${opt}_default}
 624     done
 625 }
 626
 627 is_in(){
 628     value=$1
 629     shift
 630     for var in $*; do
 631         [ $var = $value ] && return 0
 632     done
 633     return 1
 634 }
 635
 636 do_check_deps(){
 637     for cfg; do
 638         cfg="${cfg#!}"
 639         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 640         disabled ${cfg}_checking && continue
 641         enable ${cfg}_checking
 642         append allopts $cfg
 643
 644         eval dep_all="\$${cfg}_deps"
 645         eval dep_any="\$${cfg}_deps_any"
 646         eval dep_sel="\$${cfg}_select"
 647         eval dep_sgs="\$${cfg}_suggest"
 648         eval dep_ifa="\$${cfg}_if"
 649         eval dep_ifn="\$${cfg}_if_any"
 650
 651         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 652         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 653         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 654
 655         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 656         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 657         enabled_all  $dep_all || disable $cfg
 658         enabled_any  $dep_any || disable $cfg
 659         disabled_any $dep_sel && disable $cfg
 660
 661         if enabled $cfg; then
 662             enable_deep $dep_sel
 663             enable_deep_weak $dep_sgs
 664         fi
 665
 666         disable ${cfg}_checking
 667     done
 668 }
 669
 670 check_deps(){
 671     unset allopts
 672
 673     do_check_deps "$@"
 674
 675     for cfg in $allopts; do
 676         enabled $cfg || continue
 677         eval dep_extralibs="\$${cfg}_extralibs"
 678         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 679     done
 680 }
 681
 682 print_config(){
 683     pfx=$1
 684     files=$2
 685     shift 2
 686     map 'eval echo "$v \${$v:-no}"' "$@" |
 687     awk "BEGIN { split(\"$files\", files) }
 688         {
 689             c = \"$pfx\" toupper(\$1);
 690             v = \$2;
 691             sub(/yes/, 1, v);
 692             sub(/no/,  0, v);
 693             for (f in files) {
 694                 file = files[f];
 695                 if (file ~ /\\.h\$/) {
 696                     printf(\"#define %s %d\\n\", c, v) >>file;
 697                 } else if (file ~ /\\.asm\$/) {
 698                     printf(\"%%define %s %d\\n\", c, v) >>file;
 699                 } else if (file ~ /\\.mak\$/) {
 700                     n = -v ? \"\" : \"!\";
 701                     printf(\"%s%s=yes\\n\", n, c) >>file;
 702                 } else if (file ~ /\\.texi\$/) {
 703                     pre = -v ? \"\" : \"@c \";
 704                     yesno = \$2;
 705                     c2 = tolower(c);
 706                     gsub(/_/, \"-\", c2);
 707                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 708                 }
 709             }
 710         }"
 711 }
 712
 713 print_enabled(){
 714     suf=$1
 715     shift
 716     for v; do
 717         enabled $v && printf "%s\n" ${v%$suf};
 718     done
 719 }
 720
 721 append(){
 722     var=$1
 723     shift
 724     eval "$var=\"\$$var $*\""
 725 }
 726
 727 prepend(){
 728     var=$1
 729     shift
 730     eval "$var=\"$* \$$var\""
 731 }
 732
 733 unique(){
 734     var=$1
 735     uniq_list=""
 736     for tok in $(eval echo \$$var); do
 737         uniq_list="$(filter_out $tok $uniq_list) $tok"
 738     done
 739     eval "$var=\"${uniq_list}\""
 740 }
 741
 742 add_cppflags(){
 743     append CPPFLAGS "$@"
 744 }
 745
 746 add_cflags(){
 747     append CFLAGS $($cflags_filter "$@")
 748 }
 749
 750 add_cxxflags(){
 751     append CXXFLAGS $($cflags_filter "$@")
 752 }
 753
 754 add_asflags(){
 755     append ASFLAGS $($asflags_filter "$@")
 756 }
 757
 758 add_ldflags(){
 759     append LDFLAGS $($ldflags_filter "$@")
 760 }
 761
 762 add_ldexeflags(){
 763     append LDEXEFLAGS $($ldflags_filter "$@")
 764 }
 765
 766 add_stripflags(){
 767     append ASMSTRIPFLAGS "$@"
 768 }
 769
 770 add_extralibs(){
 771     prepend extralibs $($ldflags_filter "$@")
 772 }
 773
 774 add_host_cppflags(){
 775     append host_cppflags "$@"
 776 }
 777
 778 add_host_cflags(){
 779     append host_cflags $($host_cflags_filter "$@")
 780 }
 781
 782 add_host_ldflags(){
 783     append host_ldflags $($host_ldflags_filter "$@")
 784 }
 785
 786 add_compat(){
 787     append compat_objs $1
 788     shift
 789     map 'add_cppflags -D$v' "$@"
 790 }
 791
 792 check_cmd(){
 793     log "$@"
 794     "$@" >> $logfile 2>&1
 795 }
 796
 797 check_stat(){
 798     log check_stat "$@"
 799     stat "$1" >> $logfile 2>&1
 800 }
 801
 802 cc_o(){
 803     eval printf '%s\\n' $CC_O
 804 }
 805
 806 cc_e(){
 807     eval printf '%s\\n' $CC_E
 808 }
 809
 810 check_cc(){
 811     log check_cc "$@"
 812     cat > $TMPC
 813     log_file $TMPC
 814     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 815 }
 816
 817 check_cxx(){
 818     log check_cxx "$@"
 819     cat > $TMPCPP
 820     log_file $TMPCPP
 821     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 822 }
 823
 824 check_oc(){
 825     log check_oc "$@"
 826     cat > $TMPM
 827     log_file $TMPM
 828     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 829 }
 830
 831 check_cpp(){
 832     log check_cpp "$@"
 833     cat > $TMPC
 834     log_file $TMPC
 835     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 836 }
 837
 838 as_o(){
 839     eval printf '%s\\n' $AS_O
 840 }
 841
 842 check_as(){
 843     log check_as "$@"
 844     cat > $TMPS
 845     log_file $TMPS
 846     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 847 }
 848
 849 check_inline_asm(){
 850     log check_inline_asm "$@"
 851     name="$1"
 852     code="$2"
 853     shift 2
 854     disable $name
 855     check_cc "$@" <<EOF && enable $name
 856 void foo(void){ __asm__ volatile($code); }
 857 EOF
 858 }
 859
 860 check_insn(){
 861     log check_insn "$@"
 862     check_inline_asm ${1}_inline "\"$2\""
 863     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 864 }
 865
 866 check_yasm(){
 867     log check_yasm "$@"
 868     echo "$1" > $TMPS
 869     log_file $TMPS
 870     shift 1
 871     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 872 }
 873
 874 ld_o(){
 875     eval printf '%s\\n' $LD_O
 876 }
 877
 878 check_ld(){
 879     log check_ld "$@"
 880     type=$1
 881     shift 1
 882     flags=$(filter_out '-l*|*.so' $@)
 883     libs=$(filter '-l*|*.so' $@)
 884     check_$type $($cflags_filter $flags) || return
 885     flags=$($ldflags_filter $flags)
 886     libs=$($ldflags_filter $libs)
 887     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 888 }
 889
 890 print_include(){
 891     hdr=$1
 892     test "${hdr%.h}" = "${hdr}" &&
 893         echo "#include $hdr"    ||
 894         echo "#include <$hdr>"
 895 }
 896
 897 check_code(){
 898     log check_code "$@"
 899     check=$1
 900     headers=$2
 901     code=$3
 902     shift 3
 903     {
 904         for hdr in $headers; do
 905             print_include $hdr
 906         done
 907         echo "int main(void) { $code; return 0; }"
 908     } | check_$check "$@"
 909 }
 910
 911 check_cppflags(){
 912     log check_cppflags "$@"
 913     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 914 int x;
 915 EOF
 916 }
 917
 918 test_cflags(){
 919     log test_cflags "$@"
 920     set -- $($cflags_filter "$@")
 921     check_cc "$@" <<EOF
 922 int x;
 923 EOF
 924 }
 925
 926 check_cflags(){
 927     log check_cflags "$@"
 928     test_cflags "$@" && add_cflags "$@"
 929 }
 930
 931 check_cxxflags(){
 932     log check_cxxflags "$@"
 933     set -- $($cflags_filter "$@")
 934     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 935 int x;
 936 EOF
 937 }
 938
 939 test_ldflags(){
 940     log test_ldflags "$@"
 941     check_ld "cc" "$@" <<EOF
 942 int main(void){ return 0; }
 943 EOF
 944 }
 945
 946 check_ldflags(){
 947     log check_ldflags "$@"
 948     test_ldflags "$@" && add_ldflags "$@"
 949 }
 950
 951 test_stripflags(){
 952     log test_stripflags "$@"
 953     # call check_cc to get a fresh TMPO
 954     check_cc <<EOF
 955 int main(void) { return 0; }
 956 EOF
 957     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 958 }
 959
 960 check_stripflags(){
 961     log check_stripflags "$@"
 962     test_stripflags "$@" && add_stripflags "$@"
 963 }
 964
 965 check_header(){
 966     log check_header "$@"
 967     header=$1
 968     shift
 969     disable_safe $header
 970     check_cpp "$@" <<EOF && enable_safe $header
 971 #include <$header>
 972 int x;
 973 EOF
 974 }
 975
 976 check_header_oc(){
 977     log check_header_oc "$@"
 978     rm -f -- "$TMPO"
 979     header=$1
 980     shift
 981     disable_safe $header
 982     {
 983        echo "#include <$header>"
 984        echo "int main(void) { return 0; }"
 985     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 986 }
 987
 988 check_func(){
 989     log check_func "$@"
 990     func=$1
 991     shift
 992     disable $func
 993     check_ld "cc" "$@" <<EOF && enable $func
 994 extern int $func();
 995 int main(void){ $func(); }
 996 EOF
 997 }
 998
 999 check_mathfunc(){
1000     log check_mathfunc "$@"
1001     func=$1
1002     narg=$2
1003     shift 2
1004     test $narg = 2 && args="f, g" || args="f"
1005     disable $func
1006     check_ld "cc" "$@" <<EOF && enable $func
1007 #include <math.h>
1008 float foo(float f, float g) { return $func($args); }
1009 int main(void){ return (int) foo; }
1010 EOF
1011 }
1012
1013 check_func_headers(){
1014     log check_func_headers "$@"
1015     headers=$1
1016     funcs=$2
1017     shift 2
1018     {
1019         for hdr in $headers; do
1020             print_include $hdr
1021         done
1022         for func in $funcs; do
1023             echo "long check_$func(void) { return (long) $func; }"
1024         done
1025         echo "int main(void) { return 0; }"
1026     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1027 }
1028
1029 check_class_headers_cpp(){
1030     log check_class_headers_cpp "$@"
1031     headers=$1
1032     classes=$2
1033     shift 2
1034     {
1035         for hdr in $headers; do
1036             echo "#include <$hdr>"
1037         done
1038         echo "int main(void) { "
1039         i=1
1040         for class in $classes; do
1041             echo "$class obj$i;"
1042             i=$(expr $i + 1)
1043         done
1044         echo "return 0; }"
1045     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1046 }
1047
1048 check_cpp_condition(){
1049     log check_cpp_condition "$@"
1050     header=$1
1051     condition=$2
1052     shift 2
1053     check_cpp "$@" <<EOF
1054 #include <$header>
1055 #if !($condition)
1056 #error "unsatisfied condition: $condition"
1057 #endif
1058 EOF
1059 }
1060
1061 check_lib(){
1062     log check_lib "$@"
1063     header="$1"
1064     func="$2"
1065     shift 2
1066     check_header $header && check_func $func "$@" && add_extralibs "$@"
1067 }
1068
1069 check_lib2(){
1070     log check_lib2 "$@"
1071     headers="$1"
1072     funcs="$2"
1073     shift 2
1074     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1075 }
1076
1077 check_lib_cpp(){
1078     log check_lib_cpp "$@"
1079     headers="$1"
1080     classes="$2"
1081     shift 2
1082     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1083 }
1084
1085 check_pkg_config(){
1086     log check_pkg_config "$@"
1087     pkgandversion="$1"
1088     pkg="${1%% *}"
1089     headers="$2"
1090     funcs="$3"
1091     shift 3
1092     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1093     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1094     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1095     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1096         set_safe ${pkg}_cflags $pkg_cflags   &&
1097         set_safe ${pkg}_libs   $pkg_libs
1098 }
1099
1100 check_exec(){
1101     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1102 }
1103
1104 check_exec_crash(){
1105     code=$(cat)
1106
1107     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1108     # are safe but may not be available everywhere.  Thus we use
1109     # raise(SIGTERM) instead.  The check is run in a subshell so we
1110     # can redirect the "Terminated" message from the shell.  SIGBUS
1111     # is not defined by standard C so it is used conditionally.
1112
1113     (check_exec "$@") >> $logfile 2>&1 <<EOF
1114 #include <signal.h>
1115 static void sighandler(int sig){
1116     raise(SIGTERM);
1117 }
1118 int foo(void){
1119     $code
1120 }
1121 int (*func_ptr)(void) = foo;
1122 int main(void){
1123     signal(SIGILL, sighandler);
1124     signal(SIGFPE, sighandler);
1125     signal(SIGSEGV, sighandler);
1126 #ifdef SIGBUS
1127     signal(SIGBUS, sighandler);
1128 #endif
1129     return func_ptr();
1130 }
1131 EOF
1132 }
1133
1134 check_type(){
1135     log check_type "$@"
1136     headers=$1
1137     type=$2
1138     shift 2
1139     disable_safe "$type"
1140     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1141 }
1142
1143 check_struct(){
1144     log check_struct "$@"
1145     headers=$1
1146     struct=$2
1147     member=$3
1148     shift 3
1149     disable_safe "${struct}_${member}"
1150     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1151         enable_safe "${struct}_${member}"
1152 }
1153
1154 check_builtin(){
1155     log check_builtin "$@"
1156     name=$1
1157     headers=$2
1158     builtin=$3
1159     shift 3
1160     disable "$name"
1161     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1162 }
1163
1164 check_compile_assert(){
1165     log check_compile_assert "$@"
1166     name=$1
1167     headers=$2
1168     condition=$3
1169     shift 3
1170     disable "$name"
1171     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1172 }
1173
1174 require(){
1175     name="$1"
1176     header="$2"
1177     func="$3"
1178     shift 3
1179     check_lib $header $func "$@" || die "ERROR: $name not found"
1180 }
1181
1182 require2(){
1183     name="$1"
1184     headers="$2"
1185     func="$3"
1186     shift 3
1187     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1188 }
1189
1190 require_cpp(){
1191     name="$1"
1192     headers="$2"
1193     classes="$3"
1194     shift 3
1195     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1196 }
1197
1198 require_pkg_config(){
1199     pkg="$1"
1200     check_pkg_config "$@" || die "ERROR: $pkg not found"
1201     add_cflags    $(get_safe ${pkg}_cflags)
1202     add_extralibs $(get_safe ${pkg}_libs)
1203 }
1204
1205 require_libfreetype(){
1206     log require_libfreetype "$@"
1207     pkg="freetype2"
1208     check_cmd $pkg_config --exists --print-errors $pkg \
1209       || die "ERROR: $pkg not found"
1210     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1211     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1212     {
1213         echo "#include <ft2build.h>"
1214         echo "#include FT_FREETYPE_H"
1215         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1216         echo "int main(void) { return 0; }"
1217     } | check_ld "cc" $pkg_cflags $pkg_libs \
1218       && set_safe ${pkg}_cflags $pkg_cflags \
1219       && set_safe ${pkg}_libs   $pkg_libs \
1220       || die "ERROR: $pkg not found"
1221     add_cflags    $(get_safe ${pkg}_cflags)
1222     add_extralibs $(get_safe ${pkg}_libs)
1223 }
1224
1225 hostcc_e(){
1226     eval printf '%s\\n' $HOSTCC_E
1227 }
1228
1229 hostcc_o(){
1230     eval printf '%s\\n' $HOSTCC_O
1231 }
1232
1233 check_host_cc(){
1234     log check_host_cc "$@"
1235     cat > $TMPC
1236     log_file $TMPC
1237     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1238 }
1239
1240 check_host_cpp(){
1241     log check_host_cpp "$@"
1242     cat > $TMPC
1243     log_file $TMPC
1244     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1245 }
1246
1247 check_host_cppflags(){
1248     log check_host_cppflags "$@"
1249     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1250 int x;
1251 EOF
1252 }
1253
1254 check_host_cflags(){
1255     log check_host_cflags "$@"
1256     set -- $($host_cflags_filter "$@")
1257     check_host_cc "$@" <<EOF && append host_cflags "$@"
1258 int x;
1259 EOF
1260 }
1261
1262 check_host_cpp_condition(){
1263     log check_host_cpp_condition "$@"
1264     header=$1
1265     condition=$2
1266     shift 2
1267     check_host_cpp "$@" <<EOF
1268 #include <$header>
1269 #if !($condition)
1270 #error "unsatisfied condition: $condition"
1271 #endif
1272 EOF
1273 }
1274
1275 apply(){
1276     file=$1
1277     shift
1278     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1279 }
1280
1281 cp_if_changed(){
1282     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1283     mkdir -p "$(dirname $2)"
1284     $cp_f "$1" "$2"
1285 }
1286
1287 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1288 # system-dependent things.
1289
1290 COMPONENT_LIST="
1291     bsfs
1292     decoders
1293     demuxers
1294     encoders
1295     filters
1296     hwaccels
1297     indevs
1298     muxers
1299     outdevs
1300     parsers
1301     protocols
1302 "
1303
1304 EXAMPLE_LIST="
1305     avio_reading_example
1306     decoding_encoding_example
1307     demuxing_decoding_example
1308     filter_audio_example
1309     filtering_audio_example
1310     filtering_video_example
1311     metadata_example
1312     muxing_example
1313     remuxing_example
1314     resampling_audio_example
1315     scaling_video_example
1316     transcode_aac_example
1317     transcoding_example
1318 "
1319
1320 EXTERNAL_LIBRARY_LIST="
1321     avisynth
1322     bzlib
1323     crystalhd
1324     decklink
1325     frei0r
1326     gnutls
1327     iconv
1328     ladspa
1329     libaacplus
1330     libass
1331     libbluray
1332     libbs2b
1333     libcaca
1334     libcdio
1335     libcelt
1336     libdc1394
1337     libfaac
1338     libfdk_aac
1339     libflite
1340     libfontconfig
1341     libfreetype
1342     libfribidi
1343     libgme
1344     libgsm
1345     libiec61883
1346     libilbc
1347     libmodplug
1348     libmp3lame
1349     libnut
1350     libopencore_amrnb
1351     libopencore_amrwb
1352     libopencv
1353     libopenjpeg
1354     libopus
1355     libpulse
1356     libquvi
1357     librtmp
1358     libschroedinger
1359     libshine
1360     libsmbclient
1361     libsoxr
1362     libspeex
1363     libssh
1364     libstagefright_h264
1365     libtheora
1366     libtwolame
1367     libutvideo
1368     libv4l2
1369     libvidstab
1370     libvo_aacenc
1371     libvo_amrwbenc
1372     libvorbis
1373     libvpx
1374     libwavpack
1375     libwebp
1376     libx264
1377     libx265
1378     libxavs
1379     libxvid
1380     libzmq
1381     libzvbi
1382     openal
1383     opencl
1384     opengl
1385     openssl
1386     x11grab
1387     xlib
1388     zlib
1389 "
1390
1391 DOCUMENT_LIST="
1392     doc
1393     htmlpages
1394     manpages
1395     podpages
1396     txtpages
1397 "
1398
1399 FEATURE_LIST="
1400     ftrapv
1401     gray
1402     hardcoded_tables
1403     runtime_cpudetect
1404     safe_bitstream_reader
1405     shared
1406     small
1407     sram
1408     static
1409     swscale_alpha
1410 "
1411
1412 HWACCEL_LIST="
1413     dxva2
1414     vaapi
1415     vda
1416     vdpau
1417     xvmc
1418 "
1419
1420 LIBRARY_LIST="
1421     avcodec
1422     avdevice
1423     avfilter
1424     avformat
1425     avresample
1426     avutil
1427     postproc
1428     swresample
1429     swscale
1430 "
1431
1432 LICENSE_LIST="
1433     gpl
1434     nonfree
1435     version3
1436 "
1437
1438 PROGRAM_LIST="
1439     ffplay
1440     ffprobe
1441     ffserver
1442     ffmpeg
1443 "
1444
1445 SUBSYSTEM_LIST="
1446     dct
1447     dwt
1448     error_resilience
1449     fast_unaligned
1450     fft
1451     lsp
1452     lzo
1453     mdct
1454     network
1455     rdft
1456 "
1457
1458 CONFIG_LIST="
1459     $COMPONENT_LIST
1460     $DOCUMENT_LIST
1461     $EXAMPLE_LIST
1462     $EXTERNAL_LIBRARY_LIST
1463     $FEATURE_LIST
1464     $HWACCEL_LIST
1465     $LICENSE_LIST
1466     $LIBRARY_LIST
1467     $PROGRAM_LIST
1468     $SUBSYSTEM_LIST
1469     fontconfig
1470     incompatible_libav_abi
1471     memalign_hack
1472     memory_poisoning
1473     neon_clobber_test
1474     pic
1475     pod2man
1476     raise_major
1477     thumb
1478     xmm_clobber_test
1479 "
1480
1481 THREADS_LIST="
1482     pthreads
1483     os2threads
1484     w32threads
1485 "
1486
1487 ATOMICS_LIST="
1488     atomics_gcc
1489     atomics_suncc
1490     atomics_win32
1491 "
1492
1493 ARCH_LIST="
1494     aarch64
1495     alpha
1496     arm
1497     avr32
1498     avr32_ap
1499     avr32_uc
1500     bfin
1501     ia64
1502     m68k
1503     mips
1504     mips64
1505     parisc
1506     ppc
1507     ppc64
1508     s390
1509     sh4
1510     sparc
1511     sparc64
1512     tilegx
1513     tilepro
1514     tomi
1515     x86
1516     x86_32
1517     x86_64
1518 "
1519
1520 ARCH_EXT_LIST_ARM="
1521     armv5te
1522     armv6
1523     armv6t2
1524     armv8
1525     neon
1526     vfp
1527     vfpv3
1528 "
1529
1530 ARCH_EXT_LIST_MIPS="
1531     mipsfpu
1532     mips32r2
1533     mipsdspr1
1534     mipsdspr2
1535 "
1536
1537 ARCH_EXT_LIST_X86_SIMD="
1538     amd3dnow
1539     amd3dnowext
1540     avx
1541     avx2
1542     fma3
1543     fma4
1544     mmx
1545     mmxext
1546     sse
1547     sse2
1548     sse3
1549     sse4
1550     sse42
1551     ssse3
1552     xop
1553 "
1554
1555 ARCH_EXT_LIST_PPC="
1556     altivec
1557     dcbzl
1558     ldbrx
1559     ppc4xx
1560     vsx
1561 "
1562
1563 ARCH_EXT_LIST_X86="
1564     $ARCH_EXT_LIST_X86_SIMD
1565     cpunop
1566     i686
1567 "
1568
1569 ARCH_EXT_LIST="
1570     $ARCH_EXT_LIST_ARM
1571     $ARCH_EXT_LIST_PPC
1572     $ARCH_EXT_LIST_X86
1573     $ARCH_EXT_LIST_MIPS
1574     loongson
1575 "
1576
1577 ARCH_FEATURES="
1578     aligned_stack
1579     fast_64bit
1580     fast_clz
1581     fast_cmov
1582     local_aligned_8
1583     local_aligned_16
1584     local_aligned_32
1585 "
1586
1587 BUILTIN_LIST="
1588     atomic_cas_ptr
1589     machine_rw_barrier
1590     MemoryBarrier
1591     mm_empty
1592     rdtsc
1593     sarestart
1594     sync_val_compare_and_swap
1595 "
1596 HAVE_LIST_CMDLINE="
1597     inline_asm
1598     symver
1599     yasm
1600 "
1601
1602 HAVE_LIST_PUB="
1603     bigendian
1604     fast_unaligned
1605     incompatible_libav_abi
1606 "
1607
1608 HEADERS_LIST="
1609     alsa_asoundlib_h
1610     altivec_h
1611     arpa_inet_h
1612     asm_types_h
1613     cdio_paranoia_h
1614     cdio_paranoia_paranoia_h
1615     CL_cl_h
1616     dev_bktr_ioctl_bt848_h
1617     dev_bktr_ioctl_meteor_h
1618     dev_ic_bt8xx_h
1619     dev_video_bktr_ioctl_bt848_h
1620     dev_video_meteor_ioctl_meteor_h
1621     direct_h
1622     dlfcn_h
1623     dxva_h
1624     ES2_gl_h
1625     gsm_h
1626     io_h
1627     mach_mach_time_h
1628     machine_ioctl_bt848_h
1629     machine_ioctl_meteor_h
1630     malloc_h
1631     openjpeg_1_5_openjpeg_h
1632     OpenGL_gl3_h
1633     poll_h
1634     sndio_h
1635     soundcard_h
1636     sys_mman_h
1637     sys_param_h
1638     sys_resource_h
1639     sys_select_h
1640     sys_soundcard_h
1641     sys_time_h
1642     sys_un_h
1643     sys_videoio_h
1644     termios_h
1645     unistd_h
1646     windows_h
1647     winsock2_h
1648 "
1649
1650 MATH_FUNCS="
1651     atanf
1652     atan2f
1653     cbrt
1654     cbrtf
1655     cosf
1656     exp2
1657     exp2f
1658     expf
1659     fminf
1660     isinf
1661     isnan
1662     ldexpf
1663     llrint
1664     llrintf
1665     log2
1666     log2f
1667     log10f
1668     lrint
1669     lrintf
1670     powf
1671     rint
1672     round
1673     roundf
1674     sinf
1675     trunc
1676     truncf
1677 "
1678
1679 SYSTEM_FUNCS="
1680     access
1681     aligned_malloc
1682     clock_gettime
1683     closesocket
1684     CommandLineToArgvW
1685     CoTaskMemFree
1686     CryptGenRandom
1687     dlopen
1688     fcntl
1689     flt_lim
1690     fork
1691     getaddrinfo
1692     gethrtime
1693     getopt
1694     GetProcessAffinityMask
1695     GetProcessMemoryInfo
1696     GetProcessTimes
1697     getrusage
1698     getservbyport
1699     GetSystemTimeAsFileTime
1700     gettimeofday
1701     glob
1702     glXGetProcAddress
1703     inet_aton
1704     isatty
1705     jack_port_get_latency_range
1706     kbhit
1707     localtime_r
1708     lzo1x_999_compress
1709     mach_absolute_time
1710     MapViewOfFile
1711     memalign
1712     mkstemp
1713     mmap
1714     mprotect
1715     nanosleep
1716     PeekNamedPipe
1717     posix_memalign
1718     pthread_cancel
1719     sched_getaffinity
1720     SetConsoleTextAttribute
1721     setmode
1722     setrlimit
1723     Sleep
1724     strerror_r
1725     sysconf
1726     sysctl
1727     usleep
1728     VirtualAlloc
1729     wglGetProcAddress
1730 "
1731
1732 TOOLCHAIN_FEATURES="
1733     as_dn_directive
1734     as_func
1735     asm_mod_q
1736     attribute_may_alias
1737     attribute_packed
1738     ebp_available
1739     ebx_available
1740     gnu_as
1741     gnu_windres
1742     ibm_asm
1743     inline_asm_labels
1744     inline_asm_nonlocal_labels
1745     inline_asm_direct_symbol_refs
1746     pragma_deprecated
1747     rsync_contimeout
1748     symver_asm_label
1749     symver_gnu_asm
1750     vfp_args
1751     xform_asm
1752     xmm_clobbers
1753 "
1754
1755 TYPES_LIST="
1756     socklen_t
1757     struct_addrinfo
1758     struct_group_source_req
1759     struct_ip_mreq_source
1760     struct_ipv6_mreq
1761     struct_pollfd
1762     struct_rusage_ru_maxrss
1763     struct_sctp_event_subscribe
1764     struct_sockaddr_in6
1765     struct_sockaddr_sa_len
1766     struct_sockaddr_storage
1767     struct_stat_st_mtim_tv_nsec
1768     struct_v4l2_frmivalenum_discrete
1769 "
1770
1771 HAVE_LIST="
1772     $ARCH_EXT_LIST
1773     $(add_suffix _external $ARCH_EXT_LIST)
1774     $(add_suffix _inline   $ARCH_EXT_LIST)
1775     $ARCH_FEATURES
1776     $ATOMICS_LIST
1777     $BUILTIN_LIST
1778     $HAVE_LIST_CMDLINE
1779     $HAVE_LIST_PUB
1780     $HEADERS_LIST
1781     $MATH_FUNCS
1782     $SYSTEM_FUNCS
1783     $THREADS_LIST
1784     $TOOLCHAIN_FEATURES
1785     $TYPES_LIST
1786     atomics_native
1787     dos_paths
1788     dxva2api_cobj
1789     dxva2_lib
1790     libc_msvcrt
1791     libdc1394_1
1792     libdc1394_2
1793     makeinfo
1794     perl
1795     pod2man
1796     sdl
1797     texi2html
1798     threads
1799     vdpau_x11
1800     xlib
1801 "
1802
1803 # options emitted with CONFIG_ prefix but not available on the command line
1804 CONFIG_EXTRA="
1805     aandcttables
1806     ac3dsp
1807     audio_frame_queue
1808     audiodsp
1809     blockdsp
1810     bswapdsp
1811     cabac
1812     dvprofile
1813     exif
1814     fdctdsp
1815     frame_thread_encoder
1816     gcrypt
1817     golomb
1818     gplv3
1819     h263dsp
1820     h264chroma
1821     h264dsp
1822     h264pred
1823     h264qpel
1824     hpeldsp
1825     huffman
1826     huffyuvdsp
1827     huffyuvencdsp
1828     idctdsp
1829     iirfilter
1830     intrax8
1831     lgplv3
1832     llauddsp
1833     llviddsp
1834     lpc
1835     me_cmp
1836     mpeg_er
1837     mpegaudio
1838     mpegaudiodsp
1839     mpegvideo
1840     mpegvideoenc
1841     nettle
1842     pixblockdsp
1843     qpeldsp
1844     rangecoder
1845     riffdec
1846     riffenc
1847     rtpdec
1848     rtpenc_chain
1849     sinewin
1850     tpeldsp
1851     videodsp
1852     vp3dsp
1853 "
1854
1855 CMDLINE_SELECT="
1856     $ARCH_EXT_LIST
1857     $CONFIG_LIST
1858     $HAVE_LIST_CMDLINE
1859     $THREADS_LIST
1860     asm
1861     cross_compile
1862     debug
1863     extra_warnings
1864     logging
1865     lto
1866     optimizations
1867     rpath
1868     stripping
1869 "
1870
1871 PATHS_LIST="
1872     bindir
1873     datadir
1874     docdir
1875     incdir
1876     libdir
1877     mandir
1878     prefix
1879     shlibdir
1880 "
1881
1882 CMDLINE_SET="
1883     $PATHS_LIST
1884     ar
1885     arch
1886     as
1887     assert_level
1888     build_suffix
1889     cc
1890     cpu
1891     cross_prefix
1892     cxx
1893     dep_cc
1894     doxygen
1895     extra_version
1896     gas
1897     host_cc
1898     host_cflags
1899     host_ld
1900     host_ldflags
1901     host_libs
1902     host_os
1903     install
1904     ld
1905     logfile
1906     malloc_prefix
1907     nm
1908     optflags
1909     pkg_config
1910     pkg_config_flags
1911     progs_suffix
1912     random_seed
1913     ranlib
1914     samples
1915     strip
1916     sws_max_filter_size
1917     sysinclude
1918     sysroot
1919     target_exec
1920     target_os
1921     target_path
1922     target_samples
1923     tempprefix
1924     toolchain
1925     valgrind
1926     yasmexe
1927 "
1928
1929 CMDLINE_APPEND="
1930     extra_cflags
1931     extra_cxxflags
1932     host_cppflags
1933 "
1934
1935 # code dependency declarations
1936
1937 # architecture extensions
1938
1939 armv5te_deps="arm"
1940 armv6_deps="arm"
1941 armv6t2_deps="arm"
1942 armv8_deps="aarch64"
1943 neon_deps_any="aarch64 arm"
1944 vfp_deps_any="aarch64 arm"
1945 vfpv3_deps="vfp"
1946
1947 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1948
1949 mipsfpu_deps="mips"
1950 mips32r2_deps="mips"
1951 mipsdspr1_deps="mips"
1952 mipsdspr2_deps="mips"
1953
1954 altivec_deps="ppc"
1955 ppc4xx_deps="ppc"
1956 vsx_deps="ppc"
1957
1958 cpunop_deps="i686"
1959 x86_64_select="i686"
1960 x86_64_suggest="fast_cmov"
1961
1962 amd3dnow_deps="mmx"
1963 amd3dnowext_deps="amd3dnow"
1964 i686_deps="x86"
1965 mmx_deps="x86"
1966 mmxext_deps="mmx"
1967 sse_deps="mmxext"
1968 sse2_deps="sse"
1969 sse3_deps="sse2"
1970 ssse3_deps="sse3"
1971 sse4_deps="ssse3"
1972 sse42_deps="sse4"
1973 avx_deps="sse42"
1974 xop_deps="avx"
1975 fma3_deps="avx"
1976 fma4_deps="avx"
1977 avx2_deps="avx"
1978
1979 mmx_external_deps="yasm"
1980 mmx_inline_deps="inline_asm"
1981 mmx_suggest="mmx_external mmx_inline"
1982
1983 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1984     eval dep=\$${ext}_deps
1985     eval ${ext}_external_deps='"${dep}_external"'
1986     eval ${ext}_inline_deps='"${dep}_inline"'
1987     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1988 done
1989
1990 aligned_stack_if_any="aarch64 ppc x86"
1991 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1992 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1993 fast_unaligned_if_any="aarch64 ppc x86"
1994
1995 need_memalign="altivec neon sse"
1996
1997 # system capabilities
1998
1999 symver_if_any="symver_asm_label symver_gnu_asm"
2000
2001 # threading support
2002 atomics_gcc_if="sync_val_compare_and_swap"
2003 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2004 atomics_win32_if="MemoryBarrier"
2005 atomics_native_if_any="$ATOMICS_LIST"
2006 w32threads_deps="atomics_native"
2007 threads_if_any="$THREADS_LIST"
2008
2009 # subsystems
2010 dct_select="rdft"
2011 error_resilience_select="me_cmp"
2012 frame_thread_encoder_deps="encoders threads"
2013 intrax8_select="error_resilience"
2014 mdct_select="fft"
2015 rdft_select="fft"
2016 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2017 mpeg_er_select="error_resilience"
2018 mpegaudio_select="mpegaudiodsp"
2019 mpegaudiodsp_select="dct"
2020 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2021 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2022
2023 # decoders / encoders
2024 aac_decoder_select="mdct sinewin"
2025 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2026 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2027 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2028 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2029 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2030 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2031 aic_decoder_select="golomb idctdsp"
2032 alac_encoder_select="lpc"
2033 als_decoder_select="bswapdsp"
2034 amrnb_decoder_select="lsp"
2035 amrwb_decoder_select="lsp"
2036 amv_decoder_select="sp5x_decoder exif"
2037 amv_encoder_select="aandcttables mpegvideoenc"
2038 ape_decoder_select="bswapdsp llauddsp"
2039 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2040 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2041 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2042 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2043 atrac1_decoder_select="mdct sinewin"
2044 atrac3_decoder_select="mdct"
2045 atrac3p_decoder_select="mdct sinewin"
2046 avrn_decoder_select="exif"
2047 bink_decoder_select="blockdsp hpeldsp"
2048 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2049 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2050 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2051 cllc_decoder_select="bswapdsp"
2052 comfortnoise_encoder_select="lpc"
2053 cook_decoder_select="audiodsp mdct sinewin"
2054 cscd_decoder_select="lzo"
2055 cscd_decoder_suggest="zlib"
2056 dca_decoder_select="mdct"
2057 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2058 dnxhd_decoder_select="blockdsp idctdsp"
2059 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2060 dvvideo_decoder_select="dvprofile idctdsp"
2061 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2062 dxa_decoder_select="zlib"
2063 eac3_decoder_select="ac3_decoder"
2064 eac3_encoder_select="ac3_encoder"
2065 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2066 eatgq_decoder_select="aandcttables"
2067 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2068 exr_decoder_select="zlib"
2069 ffv1_decoder_select="golomb rangecoder"
2070 ffv1_encoder_select="rangecoder"
2071 ffvhuff_decoder_select="huffyuv_decoder"
2072 ffvhuff_encoder_select="huffyuv_encoder"
2073 fic_decoder_select="golomb"
2074 flac_decoder_select="golomb"
2075 flac_encoder_select="bswapdsp golomb lpc"
2076 flashsv_decoder_select="zlib"
2077 flashsv_encoder_select="zlib"
2078 flashsv2_encoder_select="zlib"
2079 flashsv2_decoder_select="zlib"
2080 flv_decoder_select="h263_decoder"
2081 flv_encoder_select="h263_encoder"
2082 fourxm_decoder_select="blockdsp bswapdsp"
2083 fraps_decoder_select="bswapdsp huffman"
2084 g2m_decoder_select="blockdsp idctdsp zlib"
2085 g729_decoder_select="audiodsp"
2086 h261_decoder_select="mpeg_er mpegvideo"
2087 h261_encoder_select="aandcttables mpegvideoenc"
2088 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2089 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2090 h263i_decoder_select="h263_decoder"
2091 h263p_encoder_select="h263_encoder"
2092 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2093 h264_decoder_suggest="error_resilience"
2094 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2095 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2096 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2097 iac_decoder_select="imc_decoder"
2098 imc_decoder_select="bswapdsp fft mdct sinewin"
2099 indeo3_decoder_select="hpeldsp"
2100 interplay_video_decoder_select="hpeldsp"
2101 jpegls_decoder_select="golomb mjpeg_decoder"
2102 jpegls_encoder_select="golomb"
2103 jv_decoder_select="blockdsp"
2104 lagarith_decoder_select="huffyuvdsp"
2105 ljpeg_encoder_select="aandcttables idctdsp"
2106 loco_decoder_select="golomb"
2107 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2108 metasound_decoder_select="lsp mdct sinewin"
2109 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2110 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2111 mjpeg_encoder_select="aandcttables mpegvideoenc"
2112 mjpegb_decoder_select="mjpeg_decoder"
2113 mlp_decoder_select="mlp_parser"
2114 motionpixels_decoder_select="bswapdsp"
2115 mp1_decoder_select="mpegaudio"
2116 mp1float_decoder_select="mpegaudio"
2117 mp2_decoder_select="mpegaudio"
2118 mp2float_decoder_select="mpegaudio"
2119 mp3_decoder_select="mpegaudio"
2120 mp3adu_decoder_select="mpegaudio"
2121 mp3adufloat_decoder_select="mpegaudio"
2122 mp3float_decoder_select="mpegaudio"
2123 mp3on4_decoder_select="mpegaudio"
2124 mp3on4float_decoder_select="mpegaudio"
2125 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2126 mpc8_decoder_select="mpegaudiodsp"
2127 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2128 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2129 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2130 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2131 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2132 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2133 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2134 mpeg4_encoder_select="h263_encoder"
2135 msmpeg4v1_decoder_select="h263_decoder"
2136 msmpeg4v2_decoder_select="h263_decoder"
2137 msmpeg4v2_encoder_select="h263_encoder"
2138 msmpeg4v3_decoder_select="h263_decoder"
2139 msmpeg4v3_encoder_select="h263_encoder"
2140 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2141 mxpeg_decoder_select="mjpeg_decoder"
2142 nellymoser_decoder_select="mdct sinewin"
2143 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2144 nuv_decoder_select="idctdsp lzo"
2145 on2avc_decoder_select="mdct"
2146 opus_decoder_deps="swresample"
2147 png_decoder_select="zlib"
2148 png_encoder_select="huffyuvencdsp zlib"
2149 prores_decoder_select="blockdsp idctdsp"
2150 prores_encoder_select="fdctdsp"
2151 qcelp_decoder_select="lsp"
2152 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2153 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2154 ra_144_decoder_select="audiodsp"
2155 ralf_decoder_select="golomb"
2156 rawvideo_decoder_select="bswapdsp"
2157 rtjpeg_decoder_select="me_cmp"
2158 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2159 rv10_encoder_select="h263_encoder"
2160 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2161 rv20_encoder_select="h263_encoder"
2162 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2163 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2164 shorten_decoder_select="golomb"
2165 sipr_decoder_select="lsp"
2166 snow_decoder_select="dwt h264qpel hpeldsp rangecoder"
2167 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2168 sonic_decoder_select="golomb rangecoder"
2169 sonic_encoder_select="golomb rangecoder"
2170 sonic_ls_encoder_select="golomb rangecoder"
2171 sp5x_decoder_select="mjpeg_decoder"
2172 svq1_decoder_select="hpeldsp"
2173 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2174 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2175 svq3_decoder_suggest="zlib"
2176 tak_decoder_select="audiodsp"
2177 theora_decoder_select="vp3_decoder"
2178 thp_decoder_select="mjpeg_decoder"
2179 tiff_decoder_suggest="zlib"
2180 tiff_encoder_suggest="zlib"
2181 truehd_decoder_select="mlp_parser"
2182 truemotion2_decoder_select="bswapdsp"
2183 truespeech_decoder_select="bswapdsp"
2184 tscc_decoder_select="zlib"
2185 twinvq_decoder_select="mdct lsp sinewin"
2186 utvideo_decoder_select="bswapdsp"
2187 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2188 vble_decoder_select="huffyuvdsp"
2189 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp"
2190 vc1image_decoder_select="vc1_decoder"
2191 vorbis_decoder_select="mdct"
2192 vorbis_encoder_select="mdct"
2193 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2194 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2195 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2196 vp6a_decoder_select="vp6_decoder"
2197 vp6f_decoder_select="vp6_decoder"
2198 vp7_decoder_select="h264pred videodsp"
2199 vp8_decoder_select="h264pred videodsp"
2200 vp9_decoder_select="videodsp vp9_parser"
2201 webp_decoder_select="vp8_decoder"
2202 wmalossless_decoder_select="llauddsp"
2203 wmapro_decoder_select="mdct sinewin"
2204 wmav1_decoder_select="mdct sinewin"
2205 wmav1_encoder_select="mdct sinewin"
2206 wmav2_decoder_select="mdct sinewin"
2207 wmav2_encoder_select="mdct sinewin"
2208 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2209 wmv1_decoder_select="h263_decoder"
2210 wmv1_encoder_select="h263_encoder"
2211 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2212 wmv2_encoder_select="h263_encoder"
2213 wmv3_decoder_select="vc1_decoder"
2214 wmv3image_decoder_select="wmv3_decoder"
2215 zerocodec_decoder_select="zlib"
2216 zlib_decoder_select="zlib"
2217 zlib_encoder_select="zlib"
2218 zmbv_decoder_select="zlib"
2219 zmbv_encoder_select="zlib"
2220
2221 # hardware accelerators
2222 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2223 dxva2_deps="dxva2api_h"
2224 vaapi_deps="va_va_h"
2225 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2226 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2227 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2228 xvmc_deps="X11_extensions_XvMClib_h"
2229
2230 h263_vaapi_hwaccel_deps="vaapi"
2231 h263_vaapi_hwaccel_select="h263_decoder"
2232 h263_vdpau_hwaccel_deps="vdpau"
2233 h263_vdpau_hwaccel_select="h263_decoder"
2234 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2235 h264_dxva2_hwaccel_deps="dxva2"
2236 h264_dxva2_hwaccel_select="h264_decoder"
2237 h264_vaapi_hwaccel_deps="vaapi"
2238 h264_vaapi_hwaccel_select="h264_decoder"
2239 h264_vda_decoder_deps="vda"
2240 h264_vda_decoder_select="h264_decoder"
2241 h264_vda_hwaccel_deps="vda"
2242 h264_vda_hwaccel_select="h264_decoder"
2243 h264_vda_old_hwaccel_deps="vda"
2244 h264_vda_old_hwaccel_select="h264_decoder"
2245 h264_vdpau_decoder_deps="vdpau"
2246 h264_vdpau_decoder_select="h264_decoder"
2247 h264_vdpau_hwaccel_deps="vdpau"
2248 h264_vdpau_hwaccel_select="h264_decoder"
2249 mpeg_vdpau_decoder_deps="vdpau"
2250 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2251 mpeg_xvmc_hwaccel_deps="xvmc"
2252 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2253 mpeg1_vdpau_decoder_deps="vdpau"
2254 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2255 mpeg1_vdpau_hwaccel_deps="vdpau"
2256 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2257 mpeg1_xvmc_hwaccel_deps="xvmc"
2258 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2259 mpeg2_crystalhd_decoder_select="crystalhd"
2260 mpeg2_dxva2_hwaccel_deps="dxva2"
2261 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2262 mpeg2_vaapi_hwaccel_deps="vaapi"
2263 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2264 mpeg2_vdpau_hwaccel_deps="vdpau"
2265 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2266 mpeg2_xvmc_hwaccel_deps="xvmc"
2267 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2268 mpeg4_crystalhd_decoder_select="crystalhd"
2269 mpeg4_vaapi_hwaccel_deps="vaapi"
2270 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2271 mpeg4_vdpau_decoder_deps="vdpau"
2272 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2273 mpeg4_vdpau_hwaccel_deps="vdpau"
2274 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2275 msmpeg4_crystalhd_decoder_select="crystalhd"
2276 vc1_crystalhd_decoder_select="crystalhd"
2277 vc1_dxva2_hwaccel_deps="dxva2"
2278 vc1_dxva2_hwaccel_select="vc1_decoder"
2279 vc1_vaapi_hwaccel_deps="vaapi"
2280 vc1_vaapi_hwaccel_select="vc1_decoder"
2281 vc1_vdpau_decoder_deps="vdpau"
2282 vc1_vdpau_decoder_select="vc1_decoder"
2283 vc1_vdpau_hwaccel_deps="vdpau"
2284 vc1_vdpau_hwaccel_select="vc1_decoder"
2285 wmv3_crystalhd_decoder_select="crystalhd"
2286 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2287 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2288 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2289 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2290
2291 # parsers
2292 h264_parser_select="h264_decoder"
2293 hevc_parser_select="hevc_decoder"
2294 mpegvideo_parser_select="mpegvideo"
2295 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2296 vc1_parser_select="mpegvideo vc1_decoder"
2297
2298 # external libraries
2299 libaacplus_encoder_deps="libaacplus"
2300 libcelt_decoder_deps="libcelt"
2301 libfaac_encoder_deps="libfaac"
2302 libfaac_encoder_select="audio_frame_queue"
2303 libfdk_aac_decoder_deps="libfdk_aac"
2304 libfdk_aac_encoder_deps="libfdk_aac"
2305 libfdk_aac_encoder_select="audio_frame_queue"
2306 libgme_demuxer_deps="libgme"
2307 libgsm_decoder_deps="libgsm"
2308 libgsm_encoder_deps="libgsm"
2309 libgsm_ms_decoder_deps="libgsm"
2310 libgsm_ms_encoder_deps="libgsm"
2311 libilbc_decoder_deps="libilbc"
2312 libilbc_encoder_deps="libilbc"
2313 libmodplug_demuxer_deps="libmodplug"
2314 libmp3lame_encoder_deps="libmp3lame"
2315 libmp3lame_encoder_select="audio_frame_queue"
2316 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2317 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2318 libopencore_amrnb_encoder_select="audio_frame_queue"
2319 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2320 libopenjpeg_decoder_deps="libopenjpeg"
2321 libopenjpeg_encoder_deps="libopenjpeg"
2322 libopus_decoder_deps="libopus"
2323 libopus_encoder_deps="libopus"
2324 libopus_encoder_select="audio_frame_queue"
2325 libquvi_demuxer_deps="libquvi"
2326 libschroedinger_decoder_deps="libschroedinger"
2327 libschroedinger_encoder_deps="libschroedinger"
2328 libshine_encoder_deps="libshine"
2329 libshine_encoder_select="audio_frame_queue"
2330 libspeex_decoder_deps="libspeex"
2331 libspeex_encoder_deps="libspeex"
2332 libspeex_encoder_select="audio_frame_queue"
2333 libstagefright_h264_decoder_deps="libstagefright_h264"
2334 libtheora_encoder_deps="libtheora"
2335 libtwolame_encoder_deps="libtwolame"
2336 libvo_aacenc_encoder_deps="libvo_aacenc"
2337 libvo_aacenc_encoder_select="audio_frame_queue"
2338 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2339 libvorbis_decoder_deps="libvorbis"
2340 libvorbis_encoder_deps="libvorbis"
2341 libvorbis_encoder_select="audio_frame_queue"
2342 libvpx_vp8_decoder_deps="libvpx"
2343 libvpx_vp8_encoder_deps="libvpx"
2344 libvpx_vp9_decoder_deps="libvpx"
2345 libvpx_vp9_encoder_deps="libvpx"
2346 libwavpack_encoder_deps="libwavpack"
2347 libwebp_encoder_deps="libwebp"
2348 libx264_encoder_deps="libx264"
2349 libx264rgb_encoder_deps="libx264"
2350 libx265_encoder_deps="libx265"
2351 libxavs_encoder_deps="libxavs"
2352 libxvid_encoder_deps="libxvid"
2353 libutvideo_decoder_deps="libutvideo"
2354 libutvideo_encoder_deps="libutvideo"
2355 libzvbi_teletext_decoder_deps="libzvbi"
2356
2357 # demuxers / muxers
2358 ac3_demuxer_select="ac3_parser"
2359 asf_demuxer_select="riffdec"
2360 asf_muxer_select="riffenc"
2361 asf_stream_muxer_select="asf_muxer"
2362 avi_demuxer_select="riffdec exif"
2363 avi_muxer_select="riffenc"
2364 avisynth_demuxer_deps="avisynth"
2365 avisynth_demuxer_select="riffdec"
2366 caf_demuxer_select="riffdec"
2367 dirac_demuxer_select="dirac_parser"
2368 dts_demuxer_select="dca_parser"
2369 dtshd_demuxer_select="dca_parser"
2370 dv_demuxer_select="dvprofile"
2371 dv_muxer_select="dvprofile"
2372 dxa_demuxer_select="riffdec"
2373 eac3_demuxer_select="ac3_parser"
2374 f4v_muxer_select="mov_muxer"
2375 flac_demuxer_select="flac_parser"
2376 hds_muxer_select="flv_muxer"
2377 hls_muxer_select="mpegts_muxer"
2378 image2_alias_pix_demuxer_select="image2_demuxer"
2379 image2_brender_pix_demuxer_select="image2_demuxer"
2380 ipod_muxer_select="mov_muxer"
2381 ismv_muxer_select="mov_muxer"
2382 libnut_demuxer_deps="libnut"
2383 libnut_muxer_deps="libnut"
2384 matroska_audio_muxer_select="matroska_muxer"
2385 matroska_demuxer_select="riffdec"
2386 matroska_demuxer_suggest="bzlib lzo zlib"
2387 matroska_muxer_select="riffenc"
2388 mmf_muxer_select="riffenc"
2389 mov_demuxer_select="riffdec"
2390 mov_demuxer_suggest="zlib"
2391 mov_muxer_select="riffenc rtpenc_chain"
2392 mp3_demuxer_select="mpegaudio_parser"
2393 mp4_muxer_select="mov_muxer"
2394 mpegts_muxer_select="adts_muxer latm_muxer"
2395 mpegtsraw_demuxer_select="mpegts_demuxer"
2396 mxf_d10_muxer_select="mxf_muxer"
2397 nut_muxer_select="riffenc"
2398 nuv_demuxer_select="riffdec"
2399 ogg_demuxer_select="golomb"
2400 psp_muxer_select="mov_muxer"
2401 rtp_demuxer_select="sdp_demuxer"
2402 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2403 rtsp_demuxer_select="http_protocol rtpdec"
2404 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2405 sap_demuxer_select="sdp_demuxer"
2406 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2407 sdp_demuxer_select="rtpdec"
2408 smoothstreaming_muxer_select="ismv_muxer"
2409 spdif_muxer_select="aac_parser"
2410 tak_demuxer_select="tak_parser"
2411 tg2_muxer_select="mov_muxer"
2412 tgp_muxer_select="mov_muxer"
2413 vobsub_demuxer_select="mpegps_demuxer"
2414 w64_demuxer_select="wav_demuxer"
2415 w64_muxer_select="wav_muxer"
2416 wav_demuxer_select="riffdec"
2417 wav_muxer_select="riffenc"
2418 webm_muxer_select="riffenc"
2419 wtv_demuxer_select="riffdec"
2420 wtv_muxer_select="riffenc"
2421 xmv_demuxer_select="riffdec"
2422 xwma_demuxer_select="riffdec"
2423
2424 # indevs / outdevs
2425 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2426 alsa_outdev_deps="alsa_asoundlib_h"
2427 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2428 avfoundation_indev_select="avfoundation"
2429 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2430 caca_outdev_deps="libcaca"
2431 decklink_outdev_deps="decklink pthreads"
2432 decklink_outdev_extralibs="-lstdc++"
2433 dshow_indev_deps="IBaseFilter"
2434 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2435 dv1394_indev_deps="dv1394"
2436 dv1394_indev_select="dv_demuxer"
2437 fbdev_indev_deps="linux_fb_h"
2438 fbdev_outdev_deps="linux_fb_h"
2439 gdigrab_indev_deps="CreateDIBSection"
2440 gdigrab_indev_extralibs="-lgdi32"
2441 gdigrab_indev_select="bmp_decoder"
2442 iec61883_indev_deps="libiec61883"
2443 jack_indev_deps="jack_jack_h sem_timedwait"
2444 lavfi_indev_deps="avfilter"
2445 libcdio_indev_deps="libcdio"
2446 libdc1394_indev_deps="libdc1394"
2447 libv4l2_indev_deps="libv4l2"
2448 openal_indev_deps="openal"
2449 opengl_outdev_deps="opengl"
2450 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2451 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2452 pulse_indev_deps="libpulse"
2453 pulse_outdev_deps="libpulse"
2454 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2455 qtkit_indev_select="qtkit"
2456 sdl_outdev_deps="sdl"
2457 sndio_indev_deps="sndio_h"
2458 sndio_outdev_deps="sndio_h"
2459 v4l_indev_deps="linux_videodev_h"
2460 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2461 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2462 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2463 vfwcap_indev_extralibs="-lavicap32"
2464 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2465 xv_outdev_extralibs="-lXv -lX11 -lXext"
2466 x11grab_indev_deps="x11grab"
2467
2468 # protocols
2469 bluray_protocol_deps="libbluray"
2470 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2471 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2472 ffrtmpcrypt_protocol_select="tcp_protocol"
2473 ffrtmphttp_protocol_deps="!librtmp_protocol"
2474 ffrtmphttp_protocol_select="http_protocol"
2475 ftp_protocol_select="tcp_protocol"
2476 gopher_protocol_select="network"
2477 http_protocol_select="tcp_protocol"
2478 httpproxy_protocol_select="tcp_protocol"
2479 https_protocol_select="tls_protocol"
2480 librtmp_protocol_deps="librtmp"
2481 librtmpe_protocol_deps="librtmp"
2482 librtmps_protocol_deps="librtmp"
2483 librtmpt_protocol_deps="librtmp"
2484 librtmpte_protocol_deps="librtmp"
2485 libsmbclient_protocol_deps="libsmbclient gplv3"
2486 libssh_protocol_deps="libssh"
2487 mmsh_protocol_select="http_protocol"
2488 mmst_protocol_select="network"
2489 rtmp_protocol_deps="!librtmp_protocol"
2490 rtmp_protocol_select="tcp_protocol"
2491 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2492 rtmps_protocol_deps="!librtmp_protocol"
2493 rtmps_protocol_select="tls_protocol"
2494 rtmpt_protocol_select="ffrtmphttp_protocol"
2495 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2496 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2497 rtp_protocol_select="udp_protocol"
2498 sctp_protocol_deps="struct_sctp_event_subscribe"
2499 sctp_protocol_select="network"
2500 srtp_protocol_select="rtp_protocol"
2501 tcp_protocol_select="network"
2502 tls_protocol_deps_any="openssl gnutls"
2503 tls_protocol_select="tcp_protocol"
2504 udp_protocol_select="network"
2505 unix_protocol_deps="sys_un_h"
2506 unix_protocol_select="network"
2507
2508 # filters
2509 aconvert_filter_deps="swresample"
2510 amovie_filter_deps="avcodec avformat"
2511 aresample_filter_deps="swresample"
2512 ass_filter_deps="libass"
2513 asyncts_filter_deps="avresample"
2514 atempo_filter_deps="avcodec"
2515 atempo_filter_select="rdft"
2516 azmq_filter_deps="libzmq"
2517 blackframe_filter_deps="gpl"
2518 boxblur_filter_deps="gpl"
2519 bs2b_filter_deps="libbs2b"
2520 colormatrix_filter_deps="gpl"
2521 cropdetect_filter_deps="gpl"
2522 dctdnoiz_filter_deps="avcodec"
2523 dctdnoiz_filter_select="dct"
2524 delogo_filter_deps="gpl"
2525 deshake_filter_deps="avcodec"
2526 deshake_filter_select="me_cmp"
2527 drawtext_filter_deps="libfreetype"
2528 ebur128_filter_deps="gpl"
2529 flite_filter_deps="libflite"
2530 frei0r_filter_deps="frei0r dlopen"
2531 frei0r_filter_extralibs='$ldl'
2532 frei0r_src_filter_deps="frei0r dlopen"
2533 frei0r_src_filter_extralibs='$ldl'
2534 geq_filter_deps="gpl"
2535 histeq_filter_deps="gpl"
2536 hqdn3d_filter_deps="gpl"
2537 interlace_filter_deps="gpl"
2538 kerndeint_filter_deps="gpl"
2539 ladspa_filter_deps="ladspa dlopen"
2540 ladspa_filter_extralibs='$ldl'
2541 mcdeint_filter_deps="avcodec gpl"
2542 movie_filter_deps="avcodec avformat"
2543 mp_filter_deps="gpl avcodec swscale inline_asm"
2544 mpdecimate_filter_deps="gpl avcodec"
2545 mpdecimate_filter_select="me_cmp pixblockdsp"
2546 mptestsrc_filter_deps="gpl"
2547 negate_filter_deps="lut_filter"
2548 perspective_filter_deps="gpl"
2549 ocv_filter_deps="libopencv"
2550 owdenoise_filter_deps="gpl"
2551 pan_filter_deps="swresample"
2552 phase_filter_deps="gpl"
2553 pp_filter_deps="gpl postproc"
2554 pullup_filter_deps="gpl"
2555 removelogo_filter_deps="avcodec avformat swscale"
2556 resample_filter_deps="avresample"
2557 sab_filter_deps="gpl swscale"
2558 scale_filter_deps="swscale"
2559 smartblur_filter_deps="gpl swscale"
2560 showspectrum_filter_deps="avcodec"
2561 showspectrum_filter_select="rdft"
2562 spp_filter_deps="gpl avcodec"
2563 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2564 stereo3d_filter_deps="gpl"
2565 subtitles_filter_deps="avformat avcodec libass"
2566 super2xsai_filter_deps="gpl"
2567 tinterlace_filter_deps="gpl"
2568 vidstabdetect_filter_deps="libvidstab"
2569 vidstabtransform_filter_deps="libvidstab"
2570 pixfmts_super2xsai_test_deps="super2xsai_filter"
2571 tinterlace_merge_test_deps="tinterlace_filter"
2572 tinterlace_pad_test_deps="tinterlace_filter"
2573 zmq_filter_deps="libzmq"
2574 zoompan_filter_deps="swscale"
2575
2576 # examples
2577 avio_reading="avformat avcodec avutil"
2578 avcodec_example_deps="avcodec avutil"
2579 demuxing_decoding_example_deps="avcodec avformat avutil"
2580 filter_audio_example_deps="avfilter avutil"
2581 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2582 filtering_video_example_deps="avfilter avcodec avformat avutil"
2583 metadata_example_deps="avformat avutil"
2584 muxing_example_deps="avcodec avformat avutil swscale"
2585 remuxing_example_deps="avcodec avformat avutil"
2586 resampling_audio_example_deps="avutil swresample"
2587 scaling_video_example_deps="avutil swscale"
2588 transcode_aac_example_deps="avcodec avformat swresample"
2589 transcoding_example_deps="avfilter avcodec avformat avutil"
2590
2591 # libraries, in linking order
2592 avcodec_deps="avutil"
2593 avdevice_deps="avformat avcodec avutil"
2594 avfilter_deps="avutil"
2595 avformat_deps="avcodec avutil"
2596 avresample_deps="avutil"
2597 postproc_deps="avutil gpl"
2598 swresample_deps="avutil"
2599 swscale_deps="avutil"
2600
2601 # programs
2602 ffmpeg_deps="avcodec avfilter avformat swresample"
2603 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2604                null_filter
2605                setpts_filter trim_filter"
2606 ffplay_deps="avcodec avformat swscale swresample sdl"
2607 ffplay_libs='$sdl_libs'
2608 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2609 ffprobe_deps="avcodec avformat"
2610 ffserver_deps="avformat fork sarestart"
2611 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2612
2613 # documentation
2614 podpages_deps="perl"
2615 manpages_deps="perl pod2man"
2616 htmlpages_deps="perl texi2html"
2617 txtpages_deps="perl makeinfo"
2618 doc_deps_any="manpages htmlpages podpages txtpages"
2619
2620 # default parameters
2621
2622 logfile="config.log"
2623
2624 # installation paths
2625 prefix_default="/usr/local"
2626 bindir_default='${prefix}/bin'
2627 datadir_default='${prefix}/share/ffmpeg'
2628 docdir_default='${prefix}/share/doc/ffmpeg'
2629 incdir_default='${prefix}/include'
2630 libdir_default='${prefix}/lib'
2631 mandir_default='${prefix}/share/man'
2632 shlibdir_default="$libdir_default"
2633
2634 # toolchain
2635 ar_default="ar"
2636 cc_default="gcc"
2637 cxx_default="g++"
2638 host_cc_default="gcc"
2639 cp_f="cp -f"
2640 doxygen_default="doxygen"
2641 install="install"
2642 ln_s="ln -s -f"
2643 nm_default="nm -g"
2644 objformat="elf"
2645 pkg_config_default=pkg-config
2646 ranlib_default="ranlib"
2647 strip_default="strip"
2648 yasmexe_default="yasm"
2649 windres_default="windres"
2650
2651 nogas=":"
2652
2653 # OS
2654 target_os_default=$(tolower $(uname -s))
2655 host_os=$target_os_default
2656
2657 # machine
2658 if test "$target_os_default" = aix; then
2659     arch_default=$(uname -p)
2660     strip_default="strip -X32_64"
2661 else
2662     arch_default=$(uname -m)
2663 fi
2664 cpu="generic"
2665
2666 # configurable options
2667 enable $PROGRAM_LIST
2668 enable $DOCUMENT_LIST
2669 enable $EXAMPLE_LIST
2670 enable $(filter_out avresample $LIBRARY_LIST)
2671 enable stripping
2672
2673 enable asm
2674 enable debug
2675 enable doc
2676 enable optimizations
2677 enable runtime_cpudetect
2678 enable safe_bitstream_reader
2679 enable static
2680 enable swscale_alpha
2681
2682 sws_max_filter_size_default=256
2683 set_default sws_max_filter_size
2684
2685 # Enable hwaccels by default.
2686 enable dxva2 vaapi vda vdpau xvmc
2687 enable xlib
2688
2689 # build settings
2690 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2691 LIBPREF="lib"
2692 LIBSUF=".a"
2693 FULLNAME='$(NAME)$(BUILDSUF)'
2694 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2695 SLIBPREF="lib"
2696 SLIBSUF=".so"
2697 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2698 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2699 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2700 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2701 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2702 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2703
2704 asflags_filter=echo
2705 cflags_filter=echo
2706 ldflags_filter=echo
2707
2708 AS_C='-c'
2709 AS_O='-o $@'
2710 CC_C='-c'
2711 CC_E='-E -o $@'
2712 CC_O='-o $@'
2713 CXX_C='-c'
2714 CXX_O='-o $@'
2715 LD_O='-o $@'
2716 LD_LIB='-l%'
2717 LD_PATH='-L'
2718 HOSTCC_C='-c'
2719 HOSTCC_E='-E -o $@'
2720 HOSTCC_O='-o $@'
2721 HOSTLD_O='-o $@'
2722
2723 host_libs='-lm'
2724 host_cflags_filter=echo
2725 host_ldflags_filter=echo
2726
2727 target_path='$(CURDIR)'
2728
2729 # since the object filename is not given with the -MM flag, the compiler
2730 # is only able to print the basename, and we must add the path ourselves
2731 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2732 DEPFLAGS='-MM'
2733
2734 # find source path
2735 if test -f configure; then
2736     source_path=.
2737 else
2738     source_path=$(cd $(dirname "$0"); pwd)
2739     echo "$source_path" | grep -q '[[:blank:]]' &&
2740         die "Out of tree builds are impossible with whitespace in source path."
2741     test -e "$source_path/config.h" &&
2742         die "Out of tree builds are impossible with config.h in source dir."
2743 fi
2744
2745 for v in "$@"; do
2746     r=${v#*=}
2747     l=${v%"$r"}
2748     r=$(sh_quote "$r")
2749     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2750 done
2751
2752 find_things(){
2753     thing=$1
2754     pattern=$2
2755     file=$source_path/$3
2756     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2757 }
2758
2759 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2760 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2761 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2762 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2763 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2764 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2765 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2766 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2767 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2768 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2769 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2770
2771 ALL_COMPONENTS="
2772     $BSF_LIST
2773     $DECODER_LIST
2774     $DEMUXER_LIST
2775     $ENCODER_LIST
2776     $FILTER_LIST
2777     $HWACCEL_LIST
2778     $INDEV_LIST
2779     $MUXER_LIST
2780     $OUTDEV_LIST
2781     $PARSER_LIST
2782     $PROTOCOL_LIST
2783 "
2784
2785 for n in $COMPONENT_LIST; do
2786     v=$(toupper ${n%s})_LIST
2787     eval enable \$$v
2788     eval ${n}_if_any="\$$v"
2789 done
2790
2791 enable $ARCH_EXT_LIST
2792
2793 die_unknown(){
2794     echo "Unknown option \"$1\"."
2795     echo "See $0 --help for available options."
2796     exit 1
2797 }
2798
2799 print_3_columns() {
2800     cat | tr ' ' '\n' | sort | pr -r -3 -t
2801 }
2802
2803 show_list() {
2804     suffix=_$1
2805     shift
2806     echo $* | sed s/$suffix//g | print_3_columns
2807     exit 0
2808 }
2809
2810 rand_list(){
2811     IFS=', '
2812     set -- $*
2813     unset IFS
2814     for thing; do
2815         comp=${thing%:*}
2816         prob=${thing#$comp}
2817         prob=${prob#:}
2818         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2819         echo "prob ${prob:-0.5}"
2820         printf '%s\n' $comp
2821     done
2822 }
2823
2824 do_random(){
2825     action=$1
2826     shift
2827     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2828     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2829 }
2830
2831 for opt do
2832     optval="${opt#*=}"
2833     case "$opt" in
2834         --extra-ldflags=*)
2835             add_ldflags $optval
2836         ;;
2837         --extra-ldexeflags=*)
2838             add_ldexeflags $optval
2839         ;;
2840         --extra-libs=*)
2841             add_extralibs $optval
2842         ;;
2843         --disable-devices)
2844             disable $INDEV_LIST $OUTDEV_LIST
2845         ;;
2846         --enable-debug=*)
2847             debuglevel="$optval"
2848         ;;
2849         --disable-programs)
2850             disable $PROGRAM_LIST
2851         ;;
2852         --disable-everything)
2853             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2854         ;;
2855         --disable-all)
2856             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2857             disable $LIBRARY_LIST $PROGRAM_LIST doc
2858         ;;
2859         --enable-random|--disable-random)
2860             action=${opt%%-random}
2861             do_random ${action#--} $COMPONENT_LIST
2862         ;;
2863         --enable-random=*|--disable-random=*)
2864             action=${opt%%-random=*}
2865             do_random ${action#--} $optval
2866         ;;
2867         --enable-*=*|--disable-*=*)
2868             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2869             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2870             eval list=\$$(toupper $thing)_LIST
2871             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2872             list=$(filter "$name" $list)
2873             [ "$list" = "" ] && warn "Option $opt did not match anything"
2874             $action $list
2875         ;;
2876         --enable-?*|--disable-?*)
2877             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2878             if is_in $option $COMPONENT_LIST; then
2879                 test $action = disable && action=unset
2880                 eval $action \$$(toupper ${option%s})_LIST
2881             elif is_in $option $CMDLINE_SELECT; then
2882                 $action $option
2883             else
2884                 die_unknown $opt
2885             fi
2886         ;;
2887         --list-*)
2888             NAME="${opt#--list-}"
2889             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2890             NAME=${NAME%s}
2891             eval show_list $NAME \$$(toupper $NAME)_LIST
2892         ;;
2893         --help|-h) show_help
2894         ;;
2895         --fatal-warnings) enable fatal_warnings
2896         ;;
2897         *)
2898             optname="${opt%%=*}"
2899             optname="${optname#--}"
2900             optname=$(echo "$optname" | sed 's/-/_/g')
2901             if is_in $optname $CMDLINE_SET; then
2902                 eval $optname='$optval'
2903             elif is_in $optname $CMDLINE_APPEND; then
2904                 append $optname "$optval"
2905             else
2906                 die_unknown $opt
2907             fi
2908         ;;
2909     esac
2910 done
2911
2912 disabled logging && logfile=/dev/null
2913
2914 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2915 set >> $logfile
2916
2917 test -n "$cross_prefix" && enable cross_compile
2918
2919 if enabled cross_compile; then
2920     test -n "$arch" && test -n "$target_os" ||
2921         die "Must specify target arch and OS when cross-compiling"
2922 fi
2923
2924 ar_default="${cross_prefix}${ar_default}"
2925 cc_default="${cross_prefix}${cc_default}"
2926 cxx_default="${cross_prefix}${cxx_default}"
2927 nm_default="${cross_prefix}${nm_default}"
2928 pkg_config_default="${cross_prefix}${pkg_config_default}"
2929 ranlib_default="${cross_prefix}${ranlib_default}"
2930 strip_default="${cross_prefix}${strip_default}"
2931 windres_default="${cross_prefix}${windres_default}"
2932
2933 sysinclude_default="${sysroot}/usr/include"
2934
2935 test -n "$valgrind" && toolchain="valgrind-memcheck"
2936
2937 case "$toolchain" in
2938     clang-asan)
2939         cc_default="clang"
2940         add_cflags  -fsanitize=address
2941         add_ldflags -fsanitize=address
2942     ;;
2943     clang-tsan)
2944         cc_default="clang"
2945         add_cflags  -fsanitize=thread -pie
2946         add_ldflags -fsanitize=thread -pie
2947     ;;
2948     clang-usan)
2949         cc_default="clang"
2950         add_cflags  -fsanitize=undefined
2951         add_ldflags -fsanitize=undefined
2952     ;;
2953     gcc-asan)
2954         cc_default="gcc"
2955         add_cflags  -fsanitize=address
2956         add_ldflags -fsanitize=address
2957     ;;
2958     gcc-tsan)
2959         cc_default="gcc"
2960         add_cflags  -fsanitize=thread -pie -fPIC
2961         add_ldflags -fsanitize=thread -pie -fPIC
2962     ;;
2963     gcc-usan)
2964         cc_default="gcc"
2965         add_cflags  -fsanitize=undefined
2966         add_ldflags -fsanitize=undefined
2967     ;;
2968     valgrind-massif)
2969         target_exec_default=${valgrind:-"valgrind"}
2970         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"
2971     ;;
2972     valgrind-memcheck)
2973         target_exec_default=${valgrind:-"valgrind"}
2974         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2975     ;;
2976     msvc)
2977         # Check whether the current MSVC version needs the C99 converter.
2978         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2979         # support enough of C99 to build ffmpeg. Default to the new
2980         # behaviour if the regexp was unable to match anything, since this
2981         # successfully parses the version number of existing supported
2982         # versions that require the converter (MSVC 2010 and 2012).
2983         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2984         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2985             cc_default="cl"
2986         else
2987             cc_default="c99wrap cl"
2988         fi
2989         ld_default="link"
2990         nm_default="dumpbin -symbols"
2991         ar_default="lib"
2992         target_os_default="win32"
2993         # Use a relative path for TMPDIR. This makes sure all the
2994         # ffconf temp files are written with a relative path, avoiding
2995         # issues with msys/win32 path conversion for MSVC parameters
2996         # such as -Fo<file> or -out:<file>.
2997         TMPDIR=.
2998     ;;
2999     icl)
3000         cc_default="icl"
3001         ld_default="xilink"
3002         nm_default="dumpbin -symbols"
3003         ar_default="xilib"
3004         target_os_default="win32"
3005         TMPDIR=.
3006     ;;
3007     gcov)
3008         add_cflags  -fprofile-arcs -ftest-coverage
3009         add_ldflags -fprofile-arcs -ftest-coverage
3010     ;;
3011     hardened)
3012         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
3013         add_ldflags -Wl,-z,relro -Wl,-z,now
3014     ;;
3015     ?*)
3016         die "Unknown toolchain $toolchain"
3017     ;;
3018 esac
3019
3020 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3021     target_exec target_os yasmexe
3022 enabled cross_compile || host_cc_default=$cc
3023 set_default host_cc
3024
3025 if ! $pkg_config --version >/dev/null 2>&1; then
3026     warn "$pkg_config not found, library detection may fail."
3027     pkg_config=false
3028 fi
3029
3030 if test $doxygen != $doxygen_default && \
3031   ! $doxygen --version >/dev/null 2>&1; then
3032     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3033 fi
3034
3035 exesuf() {
3036     case $1 in
3037         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3038     esac
3039 }
3040
3041 EXESUF=$(exesuf $target_os)
3042 HOSTEXESUF=$(exesuf $host_os)
3043
3044 # set temporary file name
3045 : ${TMPDIR:=$TEMPDIR}
3046 : ${TMPDIR:=$TMP}
3047 : ${TMPDIR:=/tmp}
3048
3049 if [ -n "$tempprefix" ] ; then
3050     mktemp(){
3051         echo $tempprefix.${HOSTNAME}.${UID}
3052     }
3053 elif ! check_cmd mktemp -u XXXXXX; then
3054     # simple replacement for missing mktemp
3055     # NOT SAFE FOR GENERAL USE
3056     mktemp(){
3057         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3058     }
3059 fi
3060
3061 tmpfile(){
3062     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3063         (set -C; exec > $tmp) 2>/dev/null ||
3064         die "Unable to create temporary file in $TMPDIR."
3065     append TMPFILES $tmp
3066     eval $1=$tmp
3067 }
3068
3069 trap 'rm -f -- $TMPFILES' EXIT
3070
3071 tmpfile TMPASM .asm
3072 tmpfile TMPC   .c
3073 tmpfile TMPCPP .cpp
3074 tmpfile TMPE   $EXESUF
3075 tmpfile TMPH   .h
3076 tmpfile TMPM   .m
3077 tmpfile TMPO   .o
3078 tmpfile TMPS   .S
3079 tmpfile TMPSH  .sh
3080 tmpfile TMPV   .ver
3081
3082 unset -f mktemp
3083
3084 chmod +x $TMPE
3085
3086 # make sure we can execute files in $TMPDIR
3087 cat > $TMPSH 2>> $logfile <<EOF
3088 #! /bin/sh
3089 EOF
3090 chmod +x $TMPSH >> $logfile 2>&1
3091 if ! $TMPSH >> $logfile 2>&1; then
3092     cat <<EOF
3093 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3094 variable to another directory and make sure that it is not mounted noexec.
3095 EOF
3096     die "Sanity test failed."
3097 fi
3098
3099 ccc_flags(){
3100     for flag; do
3101         case $flag in
3102             -std=c99)           echo -c99                       ;;
3103             -mcpu=*)            echo -arch ${flag#*=}           ;;
3104             -mieee)             echo -ieee                      ;;
3105             -O*|-fast)          echo $flag                      ;;
3106             -fno-math-errno)    echo -assume nomath_errno       ;;
3107             -g)                 echo -g3                        ;;
3108             -Wall)              echo -msg_enable level2         ;;
3109             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3110             -Wl,*)              echo $flag                      ;;
3111             -f*|-W*)                                            ;;
3112             *)                  echo $flag                      ;;
3113         esac
3114    done
3115 }
3116
3117 cparser_flags(){
3118     for flag; do
3119         case $flag in
3120             -Wno-switch)             echo -Wno-switch-enum ;;
3121             -Wno-format-zero-length) ;;
3122             -Wdisabled-optimization) ;;
3123             -Wno-pointer-sign)       echo -Wno-other ;;
3124             *)                       echo $flag ;;
3125         esac
3126     done
3127 }
3128
3129 msvc_common_flags(){
3130     for flag; do
3131         case $flag in
3132             # In addition to specifying certain flags under the compiler
3133             # specific filters, they must be specified here as well or else the
3134             # generic catch all at the bottom will print the original flag.
3135             -Wall)                ;;
3136             -std=c99)             ;;
3137             # Common flags
3138             -fomit-frame-pointer) ;;
3139             -g)                   echo -Z7 ;;
3140             -fno-math-errno)      ;;
3141             -fno-common)          ;;
3142             -fno-signed-zeros)    ;;
3143             -fPIC)                ;;
3144             -mthumb)              ;;
3145             -march=*)             ;;
3146             -lz)                  echo zlib.lib ;;
3147             -lavifil32)           echo vfw32.lib ;;
3148             -lavicap32)           echo vfw32.lib user32.lib ;;
3149             -l*)                  echo ${flag#-l}.lib ;;
3150             *)                    echo $flag ;;
3151         esac
3152     done
3153 }
3154
3155 msvc_flags(){
3156     msvc_common_flags "$@"
3157     for flag; do
3158         case $flag in
3159             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3160                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3161                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3162                                        -wd4554 \
3163                                        -wd4273 ;;
3164         esac
3165     done
3166 }
3167
3168 icl_flags(){
3169     msvc_common_flags "$@"
3170     for flag; do
3171         case $flag in
3172             # Despite what Intel's documentation says -Wall, which is supported
3173             # on Windows, does enable remarks so disable them here.
3174             -Wall)                echo $flag -Qdiag-disable:remark ;;
3175             -std=c99)             echo -Qstd=c99 ;;
3176             -flto)                echo -ipo ;;
3177         esac
3178     done
3179 }
3180
3181 icc_flags(){
3182     for flag; do
3183         case $flag in
3184             -flto)                echo -ipo ;;
3185             *)                    echo $flag ;;
3186         esac
3187     done
3188 }
3189
3190 pgi_flags(){
3191     for flag; do
3192         case $flag in
3193             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3194             -fomit-frame-pointer) echo -Mnoframe ;;
3195             -g)                   echo -gopt ;;
3196             *)                    echo $flag ;;
3197         esac
3198     done
3199 }
3200
3201 suncc_flags(){
3202     for flag; do
3203         case $flag in
3204             -march=*|-mcpu=*)
3205                 case "${flag#*=}" in
3206                     native)                   echo -xtarget=native       ;;
3207                     v9|niagara)               echo -xarch=sparc          ;;
3208                     ultrasparc)               echo -xarch=sparcvis       ;;
3209                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3210                     i586|pentium)             echo -xchip=pentium        ;;
3211                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3212                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3213                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3214                     pentium4*)          echo -xtarget=pentium4           ;;
3215                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3216                     *-sse3)             echo -xarch=sse3                 ;;
3217                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3218                     bonnell)                   echo -xarch=ssse3         ;;
3219                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3220                     westmere)                  echo -xtarget=westmere    ;;
3221                     silvermont)                echo -xarch=sse4_2        ;;
3222                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3223                     core-avx*|ivybridge|haswell|broadwell)
3224                                                echo -xarch=avx           ;;
3225                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3226                     btver1)                    echo -xarch=amdsse4a      ;;
3227                     btver2|bdver*)             echo -xarch=avx           ;;
3228                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3229                     k8|opteron|athlon64|athlon-fx)
3230                                                echo -xarch=sse2a         ;;
3231                     athlon*)                   echo -xarch=pentium_proa  ;;
3232                 esac
3233                 ;;
3234             -std=c99)             echo -xc99              ;;
3235             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3236             -fPIC)                echo -KPIC -xcode=pic32 ;;
3237             -W*,*)                echo $flag              ;;
3238             -f*-*|-W*|-mimpure-text)                      ;;
3239             -shared)              echo -G                 ;;
3240             *)                    echo $flag              ;;
3241         esac
3242     done
3243 }
3244
3245 tms470_flags(){
3246     for flag; do
3247         case $flag in
3248             -march=*|-mcpu=*)
3249                 case "${flag#*=}" in
3250                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3251                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3252                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3253                     armv6*|arm11*)          echo -mv=6   ;;
3254                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3255                                             echo -mv=5e  ;;
3256                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3257                 esac
3258                 ;;
3259             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3260             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3261             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3262             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3263             -msoft-float)   echo --float_support=vfplib       ;;
3264             -O[0-3]|-mf=*)  echo $flag                        ;;
3265             -g)             echo -g -mn                       ;;
3266             -pds=*)         echo $flag                        ;;
3267             -D*|-I*)        echo $flag                        ;;
3268             --gcc|--abi=*)  echo $flag                        ;;
3269             -me)            echo $flag                        ;;
3270         esac
3271     done
3272 }
3273
3274 probe_cc(){
3275     pfx=$1
3276     _cc=$2
3277
3278     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3279     unset _ld_o _ldflags _ld_lib _ld_path
3280     unset _depflags _DEPCMD _DEPFLAGS
3281     _flags_filter=echo
3282
3283     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3284         true # no-op to avoid reading stdin in following checks
3285     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3286         _type=llvm_gcc
3287         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3288         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3289         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3290         _cflags_speed='-O3'
3291         _cflags_size='-Os'
3292     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3293         _type=gcc
3294         gcc_version=$($_cc --version | head -n1)
3295         gcc_basever=$($_cc -dumpversion)
3296         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3297         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3298         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3299         if ! $_cc -dumpversion | grep -q '^2\.'; then
3300             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3301         fi
3302         _cflags_speed='-O3'
3303         _cflags_size='-Os'
3304     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3305         _type=icc
3306         _ident=$($_cc --version | head -n1)
3307         _depflags='-MMD'
3308         _cflags_speed='-O3'
3309         _cflags_size='-Os'
3310         _cflags_noopt='-O1'
3311         _flags_filter=icc_flags
3312     elif $_cc -v 2>&1 | grep -q xlc; then
3313         _type=xlc
3314         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3315         _cflags_speed='-O5'
3316         _cflags_size='-O5 -qcompact'
3317     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3318         _type=ccc
3319         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3320         _DEPFLAGS='-M'
3321         _cflags_speed='-fast'
3322         _cflags_size='-O1'
3323         _flags_filter=ccc_flags
3324     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3325         test -d "$sysroot" || die "No valid sysroot specified."
3326         _type=armcc
3327         _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
3328         armcc_conf="$PWD/armcc.conf"
3329         $_cc --arm_linux_configure                 \
3330              --arm_linux_config_file="$armcc_conf" \
3331              --configure_sysroot="$sysroot"        \
3332              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3333              die "Error creating armcc configuration file."
3334         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3335         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3336         as_default="${cross_prefix}gcc"
3337         _depflags='-MMD'
3338         _cflags_speed='-O3'
3339         _cflags_size='-Os'
3340     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3341         _type=tms470
3342         _ident=$($_cc -version | head -n1 | tr -s ' ')
3343         _flags='--gcc --abi=eabi -me'
3344         _cc_e='-ppl -fe=$@'
3345         _cc_o='-fe=$@'
3346         _depflags='-ppa -ppd=$(@:.o=.d)'
3347         _cflags_speed='-O3 -mf=5'
3348         _cflags_size='-O3 -mf=2'
3349         _flags_filter=tms470_flags
3350     elif $_cc -v 2>&1 | grep -q clang; then
3351         _type=clang
3352         _ident=$($_cc --version | head -n1)
3353         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3354         _cflags_speed='-O3'
3355         _cflags_size='-Os'
3356     elif $_cc -V 2>&1 | grep -q Sun; then
3357         _type=suncc
3358         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3359         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3360         _DEPFLAGS='-xM1 -xc99'
3361         _ldflags='-std=c99'
3362         _cflags_speed='-O5'
3363         _cflags_size='-O5 -xspace'
3364         _flags_filter=suncc_flags
3365     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3366         _type=pathscale
3367         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3368         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3369         _cflags_speed='-O2'
3370         _cflags_size='-Os'
3371         _flags_filter='filter_out -Wdisabled-optimization'
3372     elif $_cc -v 2>&1 | grep -q Open64; then
3373         _type=open64
3374         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3375         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3376         _cflags_speed='-O2'
3377         _cflags_size='-Os'
3378         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3379     elif $_cc -V 2>&1 | grep -q Portland; then
3380         _type=pgi
3381         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3382         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3383         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3384         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3385         _cflags_noopt="-O"
3386         _flags_filter=pgi_flags
3387     elif $_cc 2>&1 | grep -q Microsoft; then
3388         _type=msvc
3389         _ident=$($cc 2>&1 | head -n1)
3390         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3391         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3392         _cflags_speed="-O2"
3393         _cflags_size="-O1"
3394         if $_cc 2>&1 | grep -q Linker; then
3395             _ld_o='-out:$@'
3396         else
3397             _ld_o='-Fe$@'
3398         fi
3399         _cc_o='-Fo$@'
3400         _cc_e='-P -Fi$@'
3401         _flags_filter=msvc_flags
3402         _ld_lib='lib%.a'
3403         _ld_path='-libpath:'
3404         _flags='-nologo'
3405         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3406         if [ $pfx = hostcc ]; then
3407             append _cflags -Dsnprintf=_snprintf
3408         fi
3409         disable stripping
3410     elif $_cc 2>&1 | grep -q Intel; then
3411         _type=icl
3412         _ident=$($cc 2>&1 | head -n1)
3413         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3414         # Not only is O3 broken on 13.x+ but it is slower on all previous
3415         # versions (tested) as well.
3416         _cflags_speed="-O2"
3417         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3418         if $_cc 2>&1 | grep -q Linker; then
3419             _ld_o='-out:$@'
3420         else
3421             _ld_o='-Fe$@'
3422         fi
3423         _cc_o='-Fo$@'
3424         _cc_e='-P'
3425         _flags_filter=icl_flags
3426         _ld_lib='lib%.a'
3427         _ld_path='-libpath:'
3428         # -Qdiag-error to make icl error when seeing certain unknown arguments
3429         _flags='-nologo -Qdiag-error:4044,10157'
3430         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3431         # with MSVC which enables it by default.
3432         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3433         if [ $pfx = hostcc ]; then
3434             append _cflags -Dsnprintf=_snprintf
3435         fi
3436     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3437         _type=cparser
3438         _ident=$($_cc --version | head -n1)
3439         _depflags='-MMD'
3440         _cflags_speed='-O4'
3441         _cflags_size='-O2'
3442         _flags_filter=cparser_flags
3443     fi
3444
3445     eval ${pfx}_type=\$_type
3446     eval ${pfx}_ident=\$_ident
3447 }
3448
3449 set_ccvars(){
3450     eval ${1}_C=\${_cc_c-\${${1}_C}}
3451     eval ${1}_E=\${_cc_e-\${${1}_E}}
3452     eval ${1}_O=\${_cc_o-\${${1}_O}}
3453
3454     if [ -n "$_depflags" ]; then
3455         eval ${1}_DEPFLAGS=\$_depflags
3456     else
3457         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3458         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3459         eval DEP${1}FLAGS=\$_flags
3460     fi
3461 }
3462
3463 probe_cc cc "$cc"
3464 cflags_filter=$_flags_filter
3465 cflags_speed=$_cflags_speed
3466 cflags_size=$_cflags_size
3467 cflags_noopt=$_cflags_noopt
3468 add_cflags $_flags $_cflags
3469 cc_ldflags=$_ldflags
3470 set_ccvars CC
3471
3472 probe_cc hostcc "$host_cc"
3473 host_cflags_filter=$_flags_filter
3474 add_host_cflags  $_flags $_cflags
3475 set_ccvars HOSTCC
3476
3477 test -n "$cc_type" && enable $cc_type ||
3478     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3479
3480 : ${as_default:=$cc}
3481 : ${dep_cc_default:=$cc}
3482 : ${ld_default:=$cc}
3483 : ${host_ld_default:=$host_cc}
3484 set_default ar as dep_cc ld host_ld windres
3485
3486 probe_cc as "$as"
3487 asflags_filter=$_flags_filter
3488 add_asflags $_flags $_cflags
3489 set_ccvars AS
3490
3491 probe_cc ld "$ld"
3492 ldflags_filter=$_flags_filter
3493 add_ldflags $_flags $_ldflags
3494 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3495 LD_O=${_ld_o-$LD_O}
3496 LD_LIB=${_ld_lib-$LD_LIB}
3497 LD_PATH=${_ld_path-$LD_PATH}
3498
3499 probe_cc hostld "$host_ld"
3500 host_ldflags_filter=$_flags_filter
3501 add_host_ldflags $_flags $_ldflags
3502 HOSTLD_O=${_ld_o-$HOSTLD_O}
3503
3504 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3505     probe_cc depcc "$dep_cc"
3506     CCDEP=${_DEPCMD:-$DEPCMD}
3507     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3508     DEPCCFLAGS=$_flags
3509 fi
3510
3511 if $ar 2>&1 | grep -q Microsoft; then
3512     arflags="-nologo"
3513     ar_o='-out:$@'
3514 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3515     arflags="rq"
3516     ar_o='$@'
3517 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3518     arflags='-Xany -r -c'
3519     ar_o='$@'
3520 else
3521     arflags="rc"
3522     ar_o='$@'
3523 fi
3524
3525 add_cflags $extra_cflags
3526 add_cxxflags $extra_cxxflags
3527 add_asflags $extra_cflags
3528
3529 if test -n "$sysroot"; then
3530     case "$cc_type" in
3531         gcc|llvm_gcc|clang)
3532             add_cppflags --sysroot="$sysroot"
3533             add_ldflags --sysroot="$sysroot"
3534 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3535             add_cppflags -isysroot "$sysroot"
3536             add_ldflags -isysroot "$sysroot"
3537         ;;
3538         tms470)
3539             add_cppflags -I"$sysinclude"
3540             add_ldflags  --sysroot="$sysroot"
3541         ;;
3542     esac
3543 fi
3544
3545 if test "$cpu" = host; then
3546     enabled cross_compile &&
3547         die "--cpu=host makes no sense when cross-compiling."
3548
3549     case "$cc_type" in
3550         gcc|llvm_gcc)
3551             check_native(){
3552                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3553                 sed -n "/cc1.*$1=/{
3554                             s/.*$1=\\([^ ]*\\).*/\\1/
3555                             p
3556                             q
3557                         }" $TMPE
3558             }
3559             cpu=$(check_native -march || check_native -mcpu)
3560         ;;
3561     esac
3562
3563     test "${cpu:-host}" = host &&
3564         die "--cpu=host not supported with compiler $cc"
3565 fi
3566
3567 # Deal with common $arch aliases
3568 case "$arch" in
3569     aarch64|arm64)
3570         arch="aarch64"
3571     ;;
3572     arm*|iPad*|iPhone*)
3573         arch="arm"
3574     ;;
3575     mips*|IP*)
3576         arch="mips"
3577     ;;
3578     parisc*|hppa*)
3579         arch="parisc"
3580     ;;
3581     "Power Macintosh"|ppc*|powerpc*)
3582         arch="ppc"
3583     ;;
3584     s390|s390x)
3585         arch="s390"
3586     ;;
3587     sh4|sh)
3588         arch="sh4"
3589     ;;
3590     sun4u|sparc*)
3591         arch="sparc"
3592     ;;
3593     tilegx|tile-gx)
3594         arch="tilegx"
3595     ;;
3596     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3597         arch="x86"
3598     ;;
3599 esac
3600
3601 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3602 enable $arch
3603
3604 # Add processor-specific flags
3605 if enabled aarch64; then
3606
3607     case $cpu in
3608         armv*)
3609             cpuflags="-march=$cpu"
3610         ;;
3611         *)
3612             cpuflags="-mcpu=$cpu"
3613         ;;
3614     esac
3615
3616 elif enabled alpha; then
3617
3618     cpuflags="-mcpu=$cpu"
3619
3620 elif enabled arm; then
3621
3622     check_arm_arch() {
3623         check_cpp_condition stddef.h \
3624             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3625             $cpuflags
3626     }
3627
3628     probe_arm_arch() {
3629         if   check_arm_arch 4;        then echo armv4;
3630         elif check_arm_arch 4T;       then echo armv4t;
3631         elif check_arm_arch 5;        then echo armv5;
3632         elif check_arm_arch 5E;       then echo armv5e;
3633         elif check_arm_arch 5T;       then echo armv5t;
3634         elif check_arm_arch 5TE;      then echo armv5te;
3635         elif check_arm_arch 5TEJ;     then echo armv5te;
3636         elif check_arm_arch 6;        then echo armv6;
3637         elif check_arm_arch 6J;       then echo armv6j;
3638         elif check_arm_arch 6K;       then echo armv6k;
3639         elif check_arm_arch 6Z;       then echo armv6z;
3640         elif check_arm_arch 6ZK;      then echo armv6zk;
3641         elif check_arm_arch 6T2;      then echo armv6t2;
3642         elif check_arm_arch 7;        then echo armv7;
3643         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3644         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3645         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3646         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3647         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3648         fi
3649     }
3650
3651     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3652
3653     case $cpu in
3654         armv*)
3655             cpuflags="-march=$cpu"
3656             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3657         ;;
3658         *)
3659             cpuflags="-mcpu=$cpu"
3660             case $cpu in
3661                 cortex-a*)                               subarch=armv7a  ;;
3662                 cortex-r*)                               subarch=armv7r  ;;
3663                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3664                 arm11*)                                  subarch=armv6   ;;
3665                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3666                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3667                 *)                             subarch=$(probe_arm_arch) ;;
3668             esac
3669         ;;
3670     esac
3671
3672     case "$subarch" in
3673         armv5t*)    enable fast_clz                ;;
3674         armv[6-8]*)
3675             enable fast_clz
3676             disabled fast_unaligned || enable fast_unaligned
3677             ;;
3678     esac
3679
3680 elif enabled avr32; then
3681
3682     case $cpu in
3683         ap7[02]0[0-2])
3684             subarch="avr32_ap"
3685             cpuflags="-mpart=$cpu"
3686         ;;
3687         ap)
3688             subarch="avr32_ap"
3689             cpuflags="-march=$cpu"
3690         ;;
3691         uc3[ab]*)
3692             subarch="avr32_uc"
3693             cpuflags="-mcpu=$cpu"
3694         ;;
3695         uc)
3696             subarch="avr32_uc"
3697             cpuflags="-march=$cpu"
3698         ;;
3699     esac
3700
3701 elif enabled bfin; then
3702
3703     cpuflags="-mcpu=$cpu"
3704
3705 elif enabled mips; then
3706
3707     cpuflags="-march=$cpu"
3708
3709     case $cpu in
3710         24kc)
3711             disable mipsfpu
3712             disable mipsdspr1
3713             disable mipsdspr2
3714         ;;
3715         24kf*)
3716             disable mipsdspr1
3717             disable mipsdspr2
3718         ;;
3719         24kec|34kc|1004kc)
3720             disable mipsfpu
3721             disable mipsdspr2
3722         ;;
3723         24kef*|34kf*|1004kf*)
3724             disable mipsdspr2
3725         ;;
3726         74kc)
3727             disable mipsfpu
3728         ;;
3729     esac
3730
3731 elif enabled ppc; then
3732
3733     disable ldbrx
3734     disable vsx
3735
3736     case $(tolower $cpu) in
3737         601|ppc601|powerpc601)
3738             cpuflags="-mcpu=601"
3739             disable altivec
3740         ;;
3741         603*|ppc603*|powerpc603*)
3742             cpuflags="-mcpu=603"
3743             disable altivec
3744         ;;
3745         604*|ppc604*|powerpc604*)
3746             cpuflags="-mcpu=604"
3747             disable altivec
3748         ;;
3749         g3|75*|ppc75*|powerpc75*)
3750             cpuflags="-mcpu=750"
3751             disable altivec
3752         ;;
3753         g4|745*|ppc745*|powerpc745*)
3754             cpuflags="-mcpu=7450"
3755         ;;
3756         74*|ppc74*|powerpc74*)
3757             cpuflags="-mcpu=7400"
3758         ;;
3759         g5|970|ppc970|powerpc970)
3760             cpuflags="-mcpu=970"
3761         ;;
3762         power[3-8]*)
3763             cpuflags="-mcpu=$cpu"
3764         ;;
3765         cell)
3766             cpuflags="-mcpu=cell"
3767             enable ldbrx
3768         ;;
3769         e500mc)
3770             cpuflags="-mcpu=e500mc"
3771             disable altivec
3772         ;;
3773         e500v2)
3774             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3775             disable altivec
3776             disable dcbzl
3777         ;;
3778         e500)
3779             cpuflags="-mcpu=8540 -mhard-float"
3780             disable altivec
3781             disable dcbzl
3782         ;;
3783     esac
3784
3785 elif enabled sparc; then
3786
3787     case $cpu in
3788         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3789             cpuflags="-mcpu=$cpu"
3790         ;;
3791         ultrasparc*|niagara[234])
3792             cpuflags="-mcpu=$cpu"
3793         ;;
3794     esac
3795
3796 elif enabled x86; then
3797
3798     case $cpu in
3799         i[345]86|pentium)
3800             cpuflags="-march=$cpu"
3801             disable mmx
3802         ;;
3803         # targets that do NOT support nopl and conditional mov (cmov)
3804         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3805             cpuflags="-march=$cpu"
3806             disable i686
3807         ;;
3808         # targets that do support nopl and conditional mov (cmov)
3809         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3810         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3811             cpuflags="-march=$cpu"
3812             enable i686
3813             enable fast_cmov
3814         ;;
3815         # targets that do support conditional mov but on which it's slow
3816         pentium4|pentium4m|prescott|nocona)
3817             cpuflags="-march=$cpu"
3818             enable i686
3819             disable fast_cmov
3820         ;;
3821     esac
3822
3823 fi
3824
3825 if [ "$cpu" != generic ]; then
3826     add_cflags  $cpuflags
3827     add_asflags $cpuflags
3828 fi
3829
3830 # compiler sanity check
3831 check_exec <<EOF
3832 int main(void){ return 0; }
3833 EOF
3834 if test "$?" != 0; then
3835     echo "$cc is unable to create an executable file."
3836     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3837         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3838         echo "Only do this if you know what cross compiling means."
3839     fi
3840     die "C compiler test failed."
3841 fi
3842
3843 add_cppflags -D_ISOC99_SOURCE
3844 add_cxxflags -D__STDC_CONSTANT_MACROS
3845 check_cflags -std=c99
3846 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3847 #include <stdlib.h>
3848 EOF
3849 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3850 #include <stdlib.h>
3851 EOF
3852
3853 add_host_cppflags -D_ISOC99_SOURCE
3854 check_host_cflags -std=c99
3855 check_host_cflags -Wall
3856 check_host_cflags -O3
3857
3858 check_64bit(){
3859     arch32=$1
3860     arch64=$2
3861     expr=$3
3862     check_code cc "" "int test[2*($expr) - 1]" &&
3863         subarch=$arch64 || subarch=$arch32
3864 }
3865
3866 case "$arch" in
3867     aarch64|alpha|ia64)
3868         spic=$shared
3869     ;;
3870     mips)
3871         check_64bit mips mips64 '_MIPS_SIM > 1'
3872         spic=$shared
3873     ;;
3874     parisc)
3875         check_64bit parisc parisc64 'sizeof(void *) > 4'
3876         spic=$shared
3877     ;;
3878     ppc)
3879         check_64bit ppc ppc64 'sizeof(void *) > 4'
3880         spic=$shared
3881     ;;
3882     s390)
3883         check_64bit s390 s390x 'sizeof(void *) > 4'
3884         spic=$shared
3885     ;;
3886     sparc)
3887         check_64bit sparc sparc64 'sizeof(void *) > 4'
3888         spic=$shared
3889     ;;
3890     x86)
3891         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3892         if test "$subarch" = "x86_64"; then
3893             spic=$shared
3894         fi
3895     ;;
3896     ppc)
3897         check_cc <<EOF && subarch="ppc64"
3898         int test[(int)sizeof(char*) - 7];
3899 EOF
3900     ;;
3901 esac
3902
3903 enable $subarch
3904 enabled spic && enable_weak pic
3905
3906 # OS specific
3907 case $target_os in
3908     aix)
3909         SHFLAGS=-shared
3910         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3911         enabled shared && add_ldflags -Wl,-brtl
3912         ;;
3913     android)
3914         disable symver
3915         SLIB_INSTALL_NAME='$(SLIBNAME)'
3916         SLIB_INSTALL_LINKS=
3917         # soname not set on purpose
3918         SHFLAGS=-shared
3919         ;;
3920     haiku)
3921         prefix_default="/boot/common"
3922         network_extralibs="-lnetwork"
3923         host_libs=
3924         ;;
3925     sunos)
3926         SHFLAGS='-shared -Wl,-h,$$(@F)'
3927         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3928         network_extralibs="-lsocket -lnsl"
3929         # When using suncc to build, the Solaris linker will mark
3930         # an executable with each instruction set encountered by
3931         # the Solaris assembler.  As our libraries contain their own
3932         # guards for processor-specific code, instead suppress
3933         # generation of the HWCAPS ELF section on Solaris x86 only.
3934         enabled_all suncc x86 &&
3935             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3936             add_ldflags -Wl,-M,mapfile
3937         nm_default='nm -P -g'
3938         ;;
3939     netbsd)
3940         disable symver
3941         oss_indev_extralibs="-lossaudio"
3942         oss_outdev_extralibs="-lossaudio"
3943         enabled gcc || check_ldflags -Wl,-zmuldefs
3944         ;;
3945     openbsd|bitrig)
3946         disable symver
3947         SHFLAGS='-shared'
3948         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3949         SLIB_INSTALL_LINKS=
3950         oss_indev_extralibs="-lossaudio"
3951         oss_outdev_extralibs="-lossaudio"
3952         ;;
3953     dragonfly)
3954         disable symver
3955         ;;
3956     freebsd)
3957         ;;
3958     bsd/os)
3959         add_extralibs -lpoll -lgnugetopt
3960         strip="strip -d"
3961         ;;
3962     darwin)
3963         test "${as#*gas-preprocessor.pl}" != "$as" || gas="${gas:=gas-preprocessor.pl} ${as:=$cc}"
3964         enabled ppc && add_asflags -force_cpusubtype_ALL
3965         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3966         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3967         strip="${strip} -x"
3968         add_ldflags -Wl,-dynamic,-search_paths_first
3969         SLIBSUF=".dylib"
3970         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3971         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3972         objformat="macho"
3973         enabled x86_64 && objformat="macho64"
3974         enabled_any pic shared ||
3975             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3976         ;;
3977     mingw32*)
3978         if test $target_os = "mingw32ce"; then
3979             disable network
3980         else
3981             target_os=mingw32
3982         fi
3983         LIBTARGET=i386
3984         if enabled x86_64; then
3985             LIBTARGET="i386:x86-64"
3986         elif enabled arm; then
3987             LIBTARGET=arm-wince
3988         fi
3989         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3990         check_ldflags -Wl,--nxcompat
3991         check_ldflags -Wl,--dynamicbase
3992         shlibdir_default="$bindir_default"
3993         SLIBPREF=""
3994         SLIBSUF=".dll"
3995         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3996         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3997         dlltool="${cross_prefix}dlltool"
3998         if check_cmd lib.exe -list; then
3999             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4000             if enabled x86_64; then
4001                 LIBTARGET=x64
4002             fi
4003         elif check_cmd $dlltool --version; then
4004             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4005         fi
4006         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4007         SLIB_INSTALL_LINKS=
4008         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4009         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4010         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4011         objformat="win32"
4012         ranlib=:
4013         enable dos_paths
4014         ;;
4015     win32|win64)
4016         disable symver
4017         if enabled shared; then
4018             # Link to the import library instead of the normal static library
4019             # for shared libs.
4020             LD_LIB='%.lib'
4021             # Cannot build both shared and static libs with MSVC or icl.
4022             disable static
4023         fi
4024         shlibdir_default="$bindir_default"
4025         SLIBPREF=""
4026         SLIBSUF=".dll"
4027         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4028         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4029         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4030         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4031         SLIB_INSTALL_LINKS=
4032         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4033         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4034         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4035         objformat="win32"
4036         ranlib=:
4037         enable dos_paths
4038         ;;
4039     cygwin*)
4040         target_os=cygwin
4041         shlibdir_default="$bindir_default"
4042         SLIBPREF="cyg"
4043         SLIBSUF=".dll"
4044         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4045         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4046         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4047         SLIB_INSTALL_LINKS=
4048         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4049         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4050         objformat="win32"
4051         enable dos_paths
4052         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4053         ;;
4054     *-dos|freedos|opendos)
4055         network_extralibs="-lsocket"
4056         objformat="coff"
4057         enable dos_paths
4058         add_cppflags -U__STRICT_ANSI__
4059         ;;
4060     linux)
4061         enable dv1394
4062         ;;
4063     irix*)
4064         target_os=irix
4065         ranlib="echo ignoring ranlib"
4066         ;;
4067     os/2*)
4068         strip="lxlite -CS"
4069         ln_s="cp -f"
4070         objformat="aout"
4071         add_cppflags -D_GNU_SOURCE
4072         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4073         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4074         LIBSUF="_s.a"
4075         SLIBPREF=""
4076         SLIBSUF=".dll"
4077         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4078         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4079         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4080             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4081             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4082             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4083             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4084             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4085         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4086             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4087         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4088         enable dos_paths
4089         enable_weak os2threads
4090         ;;
4091     gnu/kfreebsd)
4092         add_cppflags -D_BSD_SOURCE
4093         ;;
4094     gnu)
4095         ;;
4096     qnx)
4097         add_cppflags -D_QNX_SOURCE
4098         network_extralibs="-lsocket"
4099         ;;
4100     symbian)
4101         SLIBSUF=".dll"
4102         enable dos_paths
4103         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4104         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4105         add_ldflags -Wl,--target1-abs,--no-undefined \
4106                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4107                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4108         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4109                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4110                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4111         ;;
4112     osf1)
4113         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4114         ;;
4115     minix)
4116         ;;
4117     plan9)
4118         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4119                      -D_REENTRANT_SOURCE        \
4120                      -D_RESEARCH_SOURCE         \
4121                      -DFD_SETSIZE=96            \
4122                      -DHAVE_SOCK_OPTS
4123         add_compat strtod.o strtod=avpriv_strtod
4124         network_extralibs='-lbsd'
4125         exeobjs=compat/plan9/main.o
4126         disable ffserver
4127         cp_f='cp'
4128         ;;
4129     none)
4130         ;;
4131     *)
4132         die "Unknown OS '$target_os'."
4133         ;;
4134 esac
4135
4136 # determine libc flavour
4137
4138 probe_libc(){
4139     pfx=$1
4140     pfx_no_=${pfx%_}
4141     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4142     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4143         eval ${pfx}libc_type=uclibc
4144         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4145     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4146         eval ${pfx}libc_type=glibc
4147         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4148     # MinGW headers can be installed on Cygwin, so check for newlib first.
4149     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4150         eval ${pfx}libc_type=newlib
4151         add_${pfx}cppflags -U__STRICT_ANSI__
4152     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4153     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4154         eval ${pfx}libc_type=mingw64
4155         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4156             add_compat msvcrt/snprintf.o
4157             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4158         fi
4159         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4160         eval test \$${pfx_no_}cc_type = "gcc" &&
4161             add_${pfx}cppflags -D__printf__=__gnu_printf__
4162     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4163          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4164         eval ${pfx}libc_type=mingw32
4165         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4166             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4167             die "ERROR: MinGW32 runtime version must be >= 3.15."
4168         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4169         eval test \$${pfx_no_}cc_type = "gcc" &&
4170             add_${pfx}cppflags -D__printf__=__gnu_printf__
4171     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4172         eval ${pfx}libc_type=msvcrt
4173         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4174         # 0x601 by default unless something else is set by the user.
4175         # This can easily lead to us detecting functions only present
4176         # in such new versions and producing binaries requiring windows 7.0.
4177         # Therefore explicitly set the default to XP unless the user has
4178         # set something else on the command line.
4179         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4180             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4181     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4182         eval ${pfx}libc_type=klibc
4183     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4184         eval ${pfx}libc_type=bionic
4185     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4186         eval ${pfx}libc_type=solaris
4187         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4188     fi
4189 }
4190
4191 probe_libc
4192 test -n "$libc_type" && enable libc_$libc_type
4193 probe_libc host_
4194 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4195
4196 case $libc_type in
4197     bionic)
4198         add_compat strtod.o strtod=avpriv_strtod
4199         ;;
4200     msvcrt)
4201         add_compat strtod.o strtod=avpriv_strtod
4202         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4203                                      _snprintf=avpriv_snprintf  \
4204                                      vsnprintf=avpriv_vsnprintf
4205         ;;
4206 esac
4207
4208 # hacks for compiler/libc/os combinations
4209
4210 if enabled_all tms470 libc_glibc; then
4211     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4212     add_cppflags -D__USER_LABEL_PREFIX__=
4213     add_cppflags -D__builtin_memset=memset
4214     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4215     add_cflags   -pds=48    # incompatible redefinition of macro
4216 fi
4217
4218 if enabled_all ccc libc_glibc; then
4219     add_ldflags -Wl,-z,now  # calls to libots crash without this
4220 fi
4221
4222 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4223     add_cppflags '-I\$(SRC_PATH)/compat/float'
4224
4225 esc(){
4226     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4227 }
4228
4229 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4230
4231 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4232
4233 set_default $PATHS_LIST
4234 set_default nm
4235
4236 # we need to build at least one lib type
4237 if ! enabled_any static shared; then
4238     cat <<EOF
4239 At least one library type must be built.
4240 Specify --enable-static to build the static libraries or --enable-shared to
4241 build the shared libraries as well. To only build the shared libraries specify
4242 --disable-static in addition to --enable-shared.
4243 EOF
4244     exit 1;
4245 fi
4246
4247 die_license_disabled() {
4248     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4249 }
4250
4251 die_license_disabled_gpl() {
4252     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4253 }
4254
4255 die_license_disabled gpl frei0r
4256 die_license_disabled gpl libcdio
4257 die_license_disabled gpl libsmbclient
4258 die_license_disabled gpl libutvideo
4259 die_license_disabled gpl libvidstab
4260 die_license_disabled gpl libx264
4261 die_license_disabled gpl libx265
4262 die_license_disabled gpl libxavs
4263 die_license_disabled gpl libxvid
4264 die_license_disabled gpl libzvbi
4265 die_license_disabled gpl x11grab
4266
4267 die_license_disabled nonfree libaacplus
4268 die_license_disabled nonfree libfaac
4269 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4270 enabled gpl && die_license_disabled_gpl nonfree openssl
4271
4272 die_license_disabled version3 libopencore_amrnb
4273 die_license_disabled version3 libopencore_amrwb
4274 die_license_disabled version3 libsmbclient
4275 die_license_disabled version3 libvo_aacenc
4276 die_license_disabled version3 libvo_amrwbenc
4277
4278 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4279
4280 disabled optimizations || check_cflags -fomit-frame-pointer
4281
4282 enable_weak_pic() {
4283     disabled pic && return
4284     enable pic
4285     add_cppflags -DPIC
4286     case "$target_os" in
4287     mingw*|cygwin*)
4288         ;;
4289     *)
4290         add_cflags -fPIC
4291         ;;
4292     esac
4293     add_asflags  -fPIC
4294 }
4295
4296 enabled pic && enable_weak_pic
4297
4298 check_cc <<EOF || die "Symbol mangling check failed."
4299 int ff_extern;
4300 EOF
4301 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4302 extern_prefix=${sym%%ff_extern*}
4303
4304 check_cc <<EOF && enable_weak inline_asm
4305 void foo(void) { __asm__ volatile ("" ::); }
4306 EOF
4307
4308 _restrict=
4309 for restrict_keyword in restrict __restrict__ __restrict; do
4310     check_cc <<EOF && _restrict=$restrict_keyword && break
4311 void foo(char * $restrict_keyword p);
4312 EOF
4313 done
4314
4315 check_cc <<EOF && enable pragma_deprecated
4316 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4317 EOF
4318
4319 check_cc <<EOF && enable attribute_packed
4320 struct { int x; } __attribute__((packed)) x;
4321 EOF
4322
4323 check_cc <<EOF && enable attribute_may_alias
4324 union { int x; } __attribute__((may_alias)) x;
4325 EOF
4326
4327 check_cc <<EOF || die "endian test failed"
4328 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4329 EOF
4330 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4331
4332 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4333     if ! enabled bigendian ;then
4334         enable vsx
4335     fi
4336 fi
4337
4338
4339 if enabled asm; then
4340     enabled     arm         && nogas=die
4341     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4342     as=${gas:=$as}
4343     check_as <<EOF && enable gnu_as || \
4344         $nogas "GNU assembler not found, install gas-preprocessor"
4345 .macro m n
4346 \n: .int 0
4347 .endm
4348 m x
4349 EOF
4350
4351     check_as <<EOF || $nogas "GNU assembler not found, install gas-preprocessor"
4352 .altmacro
4353 EOF
4354
4355     check_as <<EOF && enable as_func
4356 .func test
4357 .endfunc
4358 EOF
4359 fi
4360
4361 check_inline_asm inline_asm_labels '"1:\n"'
4362
4363 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4364
4365 if enabled aarch64; then
4366     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4367     # internal assembler in clang 3.3 does not support this instruction
4368     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4369     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4370
4371     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4372
4373 elif enabled alpha; then
4374
4375     check_cflags -mieee
4376
4377 elif enabled arm; then
4378
4379     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4380 float func(float a, float b){ return a+b; }
4381 EOF
4382
4383     enabled thumb && check_cflags -mthumb || check_cflags -marm
4384
4385     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4386         enable vfp_args
4387     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4388         case "${cross_prefix:-$cc}" in
4389             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4390             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4391 __asm__ (".eabi_attribute 28, 1");
4392 int main(void) { return 0; }
4393 EOF
4394         esac
4395         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4396     fi
4397
4398     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4399     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4400     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4401     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4402     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4403     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4404
4405     [ $target_os = linux ] || [ $target_os = android ] ||
4406         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4407             $ARCH_EXT_LIST_ARM
4408
4409     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4410
4411     check_as <<EOF && enable as_dn_directive
4412 ra .dn d0.i16
4413 .unreq ra
4414 EOF
4415
4416     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4417
4418 elif enabled mips; then
4419
4420     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4421     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4422      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4423     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4424      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4425     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4426      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4427     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4428      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4429
4430 elif enabled parisc; then
4431
4432     if enabled gcc; then
4433         case $($cc -dumpversion) in
4434             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4435         esac
4436     fi
4437
4438 elif enabled ppc; then
4439
4440     enable local_aligned_8 local_aligned_16 local_aligned_32
4441
4442     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4443     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4444     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4445     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4446
4447     # AltiVec flags: The FSF version of GCC differs from the Apple version
4448     if enabled altivec; then
4449         check_cflags -maltivec -mabi=altivec &&
4450         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4451         check_cflags -faltivec
4452
4453         # check if our compiler supports Motorola AltiVec C API
4454         check_cc <<EOF || disable altivec
4455 $inc_altivec_h
4456 int main(void) {
4457     vector signed int v1 = (vector signed int) { 0 };
4458     vector signed int v2 = (vector signed int) { 1 };
4459     v1 = vec_add(v1, v2);
4460     return 0;
4461 }
4462 EOF
4463
4464         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4465     fi
4466
4467     if enabled vsx; then
4468         check_cflags -mvsx
4469     fi
4470 elif enabled x86; then
4471
4472     check_builtin rdtsc    intrin.h   "__rdtsc()"
4473     check_builtin mm_empty mmintrin.h "_mm_empty()"
4474
4475     enable local_aligned_8 local_aligned_16 local_aligned_32
4476
4477     # check whether EBP is available on x86
4478     # As 'i' is stored on the stack, this program will crash
4479     # if the base pointer is used to access it because the
4480     # base pointer is cleared in the inline assembly code.
4481     check_exec_crash <<EOF && enable ebp_available
4482 volatile int i=0;
4483 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4484 return i;
4485 EOF
4486
4487     # check whether EBX is available on x86
4488     check_inline_asm ebx_available '""::"b"(0)' &&
4489         check_inline_asm ebx_available '"":::"%ebx"'
4490
4491     # check whether xmm clobbers are supported
4492     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4493
4494     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4495         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4496
4497     # check whether binutils is new enough to compile SSSE3/MMXEXT
4498     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4499     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4500
4501     if ! disabled_any asm mmx yasm; then
4502         if check_cmd $yasmexe --version; then
4503             enabled x86_64 && yasm_extra="-m amd64"
4504             yasm_debug="-g dwarf2"
4505         elif check_cmd nasm -v; then
4506             yasmexe=nasm
4507             yasm_debug="-g -F dwarf"
4508             if enabled x86_64; then
4509                 case "$objformat" in
4510                     elf)   objformat=elf64 ;;
4511                     win32) objformat=win64 ;;
4512                 esac
4513             fi
4514         fi
4515
4516         YASMFLAGS="-f $objformat $yasm_extra"
4517         enabled pic               && append YASMFLAGS "-DPIC"
4518         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4519         case "$objformat" in
4520             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4521         esac
4522
4523         check_yasm "movbe ecx, [5]" && enable yasm ||
4524             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4525         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4526         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4527         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4528         check_yasm "CPU amdnop" || disable cpunop
4529     fi
4530
4531     case "$cpu" in
4532         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4533             disable fast_clz
4534         ;;
4535     esac
4536
4537 fi
4538
4539 check_ldflags -Wl,--as-needed
4540
4541 if check_func dlopen; then
4542     ldl=
4543 elif check_func dlopen -ldl; then
4544     ldl=-ldl
4545 fi
4546
4547 if ! disabled network; then
4548     check_func getaddrinfo $network_extralibs
4549     check_func getservbyport $network_extralibs
4550     check_func inet_aton $network_extralibs
4551
4552     check_type netdb.h "struct addrinfo"
4553     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4554     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4555     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4556     check_type poll.h "struct pollfd"
4557     check_type netinet/sctp.h "struct sctp_event_subscribe"
4558     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4559     check_type netinet/in.h "struct sockaddr_in6"
4560     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4561     check_type "sys/types.h sys/socket.h" socklen_t
4562
4563     # Prefer arpa/inet.h over winsock2
4564     if check_header arpa/inet.h ; then
4565         check_func closesocket
4566     elif check_header winsock2.h ; then
4567         check_func_headers winsock2.h closesocket -lws2 &&
4568             network_extralibs="-lws2" ||
4569         { check_func_headers winsock2.h closesocket -lws2_32 &&
4570             network_extralibs="-lws2_32"; } || disable winsock2_h network
4571         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4572
4573         check_type ws2tcpip.h socklen_t
4574         check_type ws2tcpip.h "struct addrinfo"
4575         check_type ws2tcpip.h "struct group_source_req"
4576         check_type ws2tcpip.h "struct ip_mreq_source"
4577         check_type ws2tcpip.h "struct ipv6_mreq"
4578         check_type winsock2.h "struct pollfd"
4579         check_struct winsock2.h "struct sockaddr" sa_len
4580         check_type ws2tcpip.h "struct sockaddr_in6"
4581         check_type ws2tcpip.h "struct sockaddr_storage"
4582     else
4583         disable network
4584     fi
4585 fi
4586
4587 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4588 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4589 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4590 check_builtin sarestart signal.h "SA_RESTART"
4591 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4592
4593 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4594 check_func  ${malloc_prefix}memalign            && enable memalign
4595 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4596
4597 check_func  access
4598 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4599 check_func  fcntl
4600 check_func  fork
4601 check_func  gethrtime
4602 check_func  getopt
4603 check_func  getrusage
4604 check_func  gettimeofday
4605 check_func  isatty
4606 check_func  localtime_r
4607 check_func  mach_absolute_time
4608 check_func  mkstemp
4609 check_func  mmap
4610 check_func  mprotect
4611 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4612 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4613 check_func  sched_getaffinity
4614 check_func  setrlimit
4615 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4616 check_func  strerror_r
4617 check_func  sysconf
4618 check_func  sysctl
4619 check_func  usleep
4620
4621 check_func_headers conio.h kbhit
4622 check_func_headers io.h setmode
4623 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4624 check_func_headers stdlib.h getenv
4625
4626 check_func_headers windows.h CoTaskMemFree -lole32
4627 check_func_headers windows.h GetProcessAffinityMask
4628 check_func_headers windows.h GetProcessTimes
4629 check_func_headers windows.h GetSystemTimeAsFileTime
4630 check_func_headers windows.h MapViewOfFile
4631 check_func_headers windows.h PeekNamedPipe
4632 check_func_headers windows.h SetConsoleTextAttribute
4633 check_func_headers windows.h Sleep
4634 check_func_headers windows.h VirtualAlloc
4635 check_func_headers glob.h glob
4636 enabled xlib &&
4637     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4638
4639 check_header cl/cl.h
4640 check_header direct.h
4641 check_header dlfcn.h
4642 check_header dxva.h
4643 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4644 check_header io.h
4645 check_header libcrystalhd/libcrystalhd_if.h
4646 check_header mach/mach_time.h
4647 check_header malloc.h
4648 check_header poll.h
4649 check_header sys/mman.h
4650 check_header sys/param.h
4651 check_header sys/resource.h
4652 check_header sys/select.h
4653 check_header sys/time.h
4654 check_header sys/un.h
4655 check_header termios.h
4656 check_header unistd.h
4657 check_header vdpau/vdpau.h
4658 check_header vdpau/vdpau_x11.h
4659 check_header VideoDecodeAcceleration/VDADecoder.h
4660 check_header windows.h
4661 check_header X11/extensions/XvMClib.h
4662 check_header asm/types.h
4663
4664 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4665 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4666 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4667
4668 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4669
4670 if ! disabled w32threads && ! enabled pthreads; then
4671     check_func_headers "windows.h process.h" _beginthreadex &&
4672         enable w32threads || disable w32threads
4673 fi
4674
4675 # check for some common methods of building with pthread support
4676 # do this before the optional library checks as some of them require pthreads
4677 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4678     enable pthreads
4679     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4680         add_cflags -pthread
4681         add_extralibs -pthread
4682     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4683         add_cflags -pthreads
4684         add_extralibs -pthreads
4685     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4686         add_cflags -ldl -pthread
4687         add_extralibs -ldl -pthread
4688     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4689         add_extralibs -lpthreadGC2
4690     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4691         :
4692     elif ! check_func pthread_join && ! check_func pthread_create; then
4693         disable pthreads
4694     fi
4695     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4696 fi
4697
4698
4699 if enabled pthreads; then
4700   check_func pthread_cancel
4701 fi
4702
4703 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4704 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4705
4706 check_lib math.h sin -lm && LIBM="-lm"
4707 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4708
4709 atan2f_args=2
4710 ldexpf_args=2
4711 powf_args=2
4712 fminf_args=2
4713
4714 for func in $MATH_FUNCS; do
4715     eval check_mathfunc $func \${${func}_args:-1}
4716 done
4717
4718 # these are off by default, so fail if requested and not available
4719 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4720 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4721                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4722                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4723 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4724 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4725 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4726 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4727 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4728 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4729 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4730 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4731 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4732 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4733                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4734                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4735 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4736 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4737 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4738 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4739 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4740 enabled fontconfig        && enable libfontconfig
4741 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4742 enabled libfreetype       && require_libfreetype
4743 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4744 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4745 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4746                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4747                                done || die "ERROR: libgsm not found"; }
4748 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4749 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4750 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4751 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4752 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4753 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4754 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4755 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4756                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4757                                die "ERROR: libopenjpeg not found"; }
4758 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4759 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4760 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4761 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4762 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4763 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4764 enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4765                                  require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4766                                  require smbclient libsmbclient.h smbc_init -lsmbclient; }
4767 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4768 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4769 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4770 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4771     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4772     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4773 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4774 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4775                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4776                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4777 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4778 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4779 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4780 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4781 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4782 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4783 enabled libvpx            && {
4784     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4785                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4786     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4787                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4788     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4789     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_SVC" -lvpx || disable libvpx_vp9_encoder; } }
4790 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4791 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4792 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4793                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4794                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4795 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4796                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4797                                die "ERROR: libx265 version must be >= 17."; }
4798 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4799 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4800 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4801 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4802 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4803                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4804                                die "ERROR: openal not found"; } &&
4805                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4806                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4807 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4808                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4809                                die "ERROR: opencl not found"; } &&
4810                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4811                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4812                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4813 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4814                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4815                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4816                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4817                                die "ERROR: opengl not found."
4818                              }
4819 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4820                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4821                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4822                                die "ERROR: openssl not found"; }
4823 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4824
4825 if enabled gnutls; then
4826     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4827     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4828 fi
4829
4830 # libdc1394 check
4831 if enabled libdc1394; then
4832     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4833         enable libdc1394_2; } ||
4834     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4835         enable libdc1394_1; } ||
4836     die "ERROR: No version of libdc1394 found "
4837 fi
4838
4839 SDL_CONFIG="${cross_prefix}sdl-config"
4840 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4841     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4842     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4843     enable sdl
4844 else
4845   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4846     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4847     sdl_libs=$("${SDL_CONFIG}" --libs)
4848     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4849     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4850     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4851     enable sdl
4852   fi
4853 fi
4854 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4855
4856 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4857 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4858 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4859 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4860 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4861
4862 check_header linux/fb.h
4863 check_header linux/videodev.h
4864 check_header linux/videodev2.h
4865 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4866
4867 check_header sys/videoio.h
4868
4869 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4870 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4871 # w32api 3.12 had it defined wrong
4872 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4873
4874 check_type "dshow.h" IBaseFilter
4875
4876 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4877 { check_header dev/bktr/ioctl_meteor.h &&
4878   check_header dev/bktr/ioctl_bt848.h; } ||
4879 { check_header machine/ioctl_meteor.h &&
4880   check_header machine/ioctl_bt848.h; } ||
4881 { check_header dev/video/meteor/ioctl_meteor.h &&
4882   check_header dev/video/bktr/ioctl_bt848.h; } ||
4883 check_header dev/ic/bt8xx.h
4884
4885 check_header sndio.h
4886 if check_struct sys/soundcard.h audio_buf_info bytes; then
4887     enable_safe sys/soundcard.h
4888 else
4889     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4890     #include <sys/soundcard.h>
4891     audio_buf_info abc;
4892 EOF
4893 fi
4894 check_header soundcard.h
4895
4896 enabled_any alsa_indev alsa_outdev &&
4897     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4898
4899 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4900     check_func jack_port_get_latency_range -ljack
4901
4902 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4903
4904 if enabled libcdio; then
4905     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4906     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4907     die "ERROR: libcdio-paranoia not found"
4908 fi
4909
4910 enabled xlib &&
4911     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4912
4913 enabled x11grab                                           &&
4914 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4915 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4916 { enabled xlib || die "ERROR: Xlib not found"; }
4917
4918 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
4919
4920 enabled dxva2api_h &&
4921     check_cc <<EOF && enable dxva2api_cobj
4922 #define _WIN32_WINNT 0x0600
4923 #define COBJMACROS
4924 #include <windows.h>
4925 #include <d3d9.h>
4926 #include <dxva2api.h>
4927 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
4928 EOF
4929
4930 enabled vaapi &&
4931     check_lib va/va.h vaInitialize -lva ||
4932     disable vaapi
4933
4934 enabled vdpau &&
4935     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4936     disable vdpau
4937
4938 enabled vdpau && enabled xlib &&
4939     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4940     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4941     enable vdpau_x11
4942
4943 # Funny iconv installations are not unusual, so check it after all flags have been set
4944 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4945
4946 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4947
4948 # add some useful compiler flags if supported
4949 check_cflags -Wdeclaration-after-statement
4950 check_cflags -Wall
4951 check_cflags -Wdisabled-optimization
4952 check_cflags -Wpointer-arith
4953 check_cflags -Wredundant-decls
4954 check_cflags -Wwrite-strings
4955 check_cflags -Wtype-limits
4956 check_cflags -Wundef
4957 check_cflags -Wmissing-prototypes
4958 check_cflags -Wno-pointer-to-int-cast
4959 check_cflags -Wstrict-prototypes
4960 check_cflags -Wempty-body
4961 enabled extra_warnings && check_cflags -Winline
4962
4963 check_disable_warning(){
4964     warning_flag=-W${1#-Wno-}
4965     test_cflags $warning_flag && add_cflags $1
4966 }
4967
4968 check_disable_warning -Wno-parentheses
4969 check_disable_warning -Wno-switch
4970 check_disable_warning -Wno-format-zero-length
4971 check_disable_warning -Wno-pointer-sign
4972
4973 # add some linker flags
4974 check_ldflags -Wl,--warn-common
4975 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4976 enabled rpath && add_ldflags -Wl,-rpath,$libdir
4977 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4978
4979 # add some strip flags
4980 # -wN '..@*' is more selective than -x, but not available everywhere.
4981 check_stripflags -wN \'..@*\' || check_stripflags -x
4982
4983 enabled neon_clobber_test &&
4984     check_ldflags -Wl,--wrap,avcodec_open2              \
4985                   -Wl,--wrap,avcodec_decode_audio4      \
4986                   -Wl,--wrap,avcodec_decode_video2      \
4987                   -Wl,--wrap,avcodec_decode_subtitle2   \
4988                   -Wl,--wrap,avcodec_encode_audio2      \
4989                   -Wl,--wrap,avcodec_encode_video2      \
4990                   -Wl,--wrap,avcodec_encode_subtitle    \
4991                   -Wl,--wrap,swr_convert                \
4992                   -Wl,--wrap,avresample_convert ||
4993     disable neon_clobber_test
4994
4995 enabled xmm_clobber_test &&
4996     check_ldflags -Wl,--wrap,avcodec_open2              \
4997                   -Wl,--wrap,avcodec_decode_audio4      \
4998                   -Wl,--wrap,avcodec_decode_video2      \
4999                   -Wl,--wrap,avcodec_decode_subtitle2   \
5000                   -Wl,--wrap,avcodec_encode_audio2      \
5001                   -Wl,--wrap,avcodec_encode_video       \
5002                   -Wl,--wrap,avcodec_encode_video2      \
5003                   -Wl,--wrap,avcodec_encode_subtitle    \
5004                   -Wl,--wrap,swr_convert                \
5005                   -Wl,--wrap,avresample_convert         \
5006                   -Wl,--wrap,sws_scale ||
5007     disable xmm_clobber_test
5008
5009 echo "X{};" > $TMPV
5010 if test_ldflags -Wl,--version-script,$TMPV; then
5011     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5012     check_cc <<EOF && enable symver_asm_label
5013 void ff_foo(void) __asm__ ("av_foo@VERSION");
5014 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5015 EOF
5016     check_cc <<EOF && enable symver_gnu_asm
5017 __asm__(".symver ff_foo,av_foo@VERSION");
5018 void ff_foo(void) {}
5019 EOF
5020 fi
5021
5022 if [ -z "$optflags" ]; then
5023     if enabled small; then
5024         optflags=$cflags_size
5025     elif enabled optimizations; then
5026         optflags=$cflags_speed
5027     else
5028         optflags=$cflags_noopt
5029     fi
5030 fi
5031
5032 check_optflags(){
5033     check_cflags "$@"
5034     enabled lto && check_ldflags "$@"
5035 }
5036
5037
5038 if enabled lto; then
5039     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5040     check_cflags  -flto
5041     check_ldflags -flto $cpuflags
5042     disable inline_asm_direct_symbol_refs
5043 fi
5044
5045 check_optflags $optflags
5046 check_optflags -fno-math-errno
5047 check_optflags -fno-signed-zeros
5048
5049 enabled ftrapv && check_cflags -ftrapv
5050
5051 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5052 int x;
5053 EOF
5054
5055
5056 if enabled icc; then
5057     # Just warnings, no remarks
5058     check_cflags -w1
5059     # -wd: Disable following warnings
5060     # 144, 167, 556: -Wno-pointer-sign
5061     # 188: enumerated type mixed with another type
5062     # 1292: attribute "foo" ignored
5063     # 1419: external declaration in primary source file
5064     # 10006: ignoring unknown option -fno-signed-zeros
5065     # 10148: ignoring unknown option -Wno-parentheses
5066     # 10156: ignoring option '-W'; no argument required
5067     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5068     # 11030: Warning unknown option --as-needed
5069     # 10156: ignoring option '-export'; no argument required
5070     check_ldflags -wd10156,11030
5071     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5072     enable ebp_available
5073     # The test above does not test linking
5074     enabled lto && disable symver_asm_label
5075     if enabled x86_32; then
5076         icc_version=$($cc -dumpversion)
5077         test ${icc_version%%.*} -ge 11 &&
5078             check_cflags -falign-stack=maintain-16-byte ||
5079             disable aligned_stack
5080     fi
5081 elif enabled ccc; then
5082     # disable some annoying warnings
5083     add_cflags -msg_disable bitnotint
5084     add_cflags -msg_disable mixfuncvoid
5085     add_cflags -msg_disable nonstandcast
5086     add_cflags -msg_disable unsupieee
5087 elif enabled gcc; then
5088     check_optflags -fno-tree-vectorize
5089     check_cflags -Werror=format-security
5090     check_cflags -Werror=implicit-function-declaration
5091     check_cflags -Werror=missing-prototypes
5092     check_cflags -Werror=return-type
5093     check_cflags -Werror=vla
5094     check_cflags -Wformat
5095     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5096 elif enabled llvm_gcc; then
5097     check_cflags -mllvm -stack-alignment=16
5098 elif enabled clang; then
5099     check_cflags -mllvm -stack-alignment=16
5100     check_cflags -Qunused-arguments
5101     check_cflags -Werror=implicit-function-declaration
5102     check_cflags -Werror=missing-prototypes
5103     check_cflags -Werror=return-type
5104 elif enabled cparser; then
5105     add_cflags -Wno-missing-variable-declarations
5106     add_cflags -Wno-empty-statement
5107 elif enabled armcc; then
5108     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5109     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5110     # 2523: use of inline assembly is deprecated
5111     add_cflags -W${armcc_opt},--diag_suppress=2523
5112     add_cflags -W${armcc_opt},--diag_suppress=1207
5113     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5114     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5115     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5116     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5117 elif enabled tms470; then
5118     add_cflags -pds=824 -pds=837
5119     disable inline_asm
5120 elif enabled pathscale; then
5121     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5122 elif enabled_any msvc icl; then
5123     enabled x86_32 && disable aligned_stack
5124     enabled_all x86_32 debug && add_cflags -Oy-
5125     enabled debug && add_ldflags -debug
5126     enable pragma_deprecated
5127     if enabled icl; then
5128         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5129         # (correctly) on icl 13.x.
5130         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5131             add_cflags -Qansi-alias
5132         # Some inline asm is not compilable in debug
5133         if enabled debug; then
5134             disable ebp_available
5135             disable ebx_available
5136         fi
5137     fi
5138     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5139     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5140 fi
5141
5142 case $as_type in
5143     clang)
5144         add_asflags -Qunused-arguments
5145     ;;
5146 esac
5147
5148 case $ld_type in
5149     clang)
5150         check_ldflags -Qunused-arguments
5151     ;;
5152 esac
5153
5154 case $target_os in
5155     osf1)
5156         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5157     ;;
5158     plan9)
5159         add_cppflags -Dmain=plan9_main
5160     ;;
5161 esac
5162
5163 enable frame_thread_encoder
5164
5165 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5166
5167 check_deps $CONFIG_LIST       \
5168            $CONFIG_EXTRA      \
5169            $HAVE_LIST         \
5170            $ALL_COMPONENTS    \
5171
5172 enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
5173
5174
5175 if test $target_os = "haiku"; then
5176     disable memalign
5177     disable posix_memalign
5178 fi
5179
5180 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5181     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5182     enable dxva2_lib
5183
5184 ! enabled_any memalign posix_memalign aligned_malloc &&
5185     enabled_any $need_memalign && enable memalign_hack
5186
5187 # add_dep lib dep
5188 # -> enable ${lib}_deps_${dep}
5189 # -> add $dep to ${lib}_deps only once
5190 add_dep() {
5191     lib=$1
5192     dep=$2
5193     enabled "${lib}_deps_${dep}" && return 0
5194     enable  "${lib}_deps_${dep}"
5195     prepend "${lib}_deps" $dep
5196 }
5197
5198 # merge deps lib components
5199 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5200 merge_deps() {
5201     lib=$1
5202     shift
5203     for comp in $*; do
5204         enabled $comp || continue
5205         eval "dep=\"\$${comp}_deps\""
5206         for d in $dep; do
5207             add_dep $lib $d
5208         done
5209     done
5210 }
5211
5212 merge_deps libavfilter $FILTER_LIST
5213
5214 for thread in $THREADS_LIST; do
5215     if enabled $thread; then
5216         test -n "$thread_type" &&
5217             die "ERROR: Only one thread type must be selected." ||
5218             thread_type="$thread"
5219     fi
5220 done
5221
5222 # conditional library dependencies, in linking order
5223 enabled aconvert_filter     && prepend avfilter_deps "swresample"
5224 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5225 enabled aresample_filter    && prepend avfilter_deps "swresample"
5226 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5227 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5228 enabled decimate_filter     && prepend avfilter_deps "avcodec"
5229 enabled deshake_filter      && prepend avfilter_deps "avcodec"
5230 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5231 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5232 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5233 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5234 enabled mp_filter           && prepend avfilter_deps "avcodec"
5235 enabled pan_filter          && prepend avfilter_deps "swresample"
5236 enabled pp_filter           && prepend avfilter_deps "postproc"
5237 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5238 enabled resample_filter && prepend avfilter_deps "avresample"
5239 enabled sab_filter          && prepend avfilter_deps "swscale"
5240 enabled scale_filter    && prepend avfilter_deps "swscale"
5241 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5242 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5243 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5244
5245 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5246
5247 enabled opus_decoder    && prepend avcodec_deps "swresample"
5248
5249 expand_deps(){
5250     lib_deps=${1}_deps
5251     eval "deps=\$$lib_deps"
5252     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5253     unique $lib_deps
5254 }
5255
5256 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5257 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5258
5259 map 'expand_deps $v' $LIBRARY_LIST
5260
5261 echo "install prefix            $prefix"
5262 echo "source path               $source_path"
5263 echo "C compiler                $cc"
5264 echo "C library                 $libc_type"
5265 if test "$host_cc" != "$cc"; then
5266     echo "host C compiler           $host_cc"
5267     echo "host C library            $host_libc_type"
5268 fi
5269 echo "ARCH                      $arch ($cpu)"
5270 if test "$build_suffix" != ""; then
5271     echo "build suffix              $build_suffix"
5272 fi
5273 if test "$progs_suffix" != ""; then
5274     echo "progs suffix              $progs_suffix"
5275 fi
5276 if test "$extra_version" != ""; then
5277     echo "version string suffix     $extra_version"
5278 fi
5279 echo "big-endian                ${bigendian-no}"
5280 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5281 if enabled x86; then
5282     echo "${yasmexe}                      ${yasm-no}"
5283     echo "MMX enabled               ${mmx-no}"
5284     echo "MMXEXT enabled            ${mmxext-no}"
5285     echo "3DNow! enabled            ${amd3dnow-no}"
5286     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5287     echo "SSE enabled               ${sse-no}"
5288     echo "SSSE3 enabled             ${ssse3-no}"
5289     echo "AVX enabled               ${avx-no}"
5290     echo "XOP enabled               ${xop-no}"
5291     echo "FMA3 enabled              ${fma3-no}"
5292     echo "FMA4 enabled              ${fma4-no}"
5293     echo "i686 features enabled     ${i686-no}"
5294     echo "CMOV is fast              ${fast_cmov-no}"
5295     echo "EBX available             ${ebx_available-no}"
5296     echo "EBP available             ${ebp_available-no}"
5297 fi
5298 if enabled aarch64; then
5299     echo "NEON enabled              ${neon-no}"
5300     echo "VFP enabled               ${vfp-no}"
5301 fi
5302 if enabled arm; then
5303     echo "ARMv5TE enabled           ${armv5te-no}"
5304     echo "ARMv6 enabled             ${armv6-no}"
5305     echo "ARMv6T2 enabled           ${armv6t2-no}"
5306     echo "VFP enabled               ${vfp-no}"
5307     echo "NEON enabled              ${neon-no}"
5308     echo "THUMB enabled             ${thumb-no}"
5309 fi
5310 if enabled mips; then
5311     echo "MIPS FPU enabled          ${mipsfpu-no}"
5312     echo "MIPS32R2 enabled          ${mips32r2-no}"
5313     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5314     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5315 fi
5316 if enabled ppc; then
5317     echo "AltiVec enabled           ${altivec-no}"
5318     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5319     echo "PPC VSX optimizations     ${vsx-no}"
5320     echo "dcbzl available           ${dcbzl-no}"
5321 fi
5322 echo "debug symbols             ${debug-no}"
5323 echo "strip symbols             ${stripping-no}"
5324 echo "optimize for size         ${small-no}"
5325 echo "optimizations             ${optimizations-no}"
5326 echo "static                    ${static-no}"
5327 echo "shared                    ${shared-no}"
5328 echo "postprocessing support    ${postproc-no}"
5329 echo "new filter support        ${avfilter-no}"
5330 echo "network support           ${network-no}"
5331 echo "threading support         ${thread_type-no}"
5332 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5333 echo "SDL support               ${sdl-no}"
5334 echo "opencl enabled            ${opencl-no}"
5335 echo "texi2html enabled         ${texi2html-no}"
5336 echo "perl enabled              ${perl-no}"
5337 echo "pod2man enabled           ${pod2man-no}"
5338 echo "makeinfo enabled          ${makeinfo-no}"
5339 test -n "$random_seed" &&
5340     echo "random seed               ${random_seed}"
5341 echo
5342
5343 echo "External libraries:"
5344 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5345 echo
5346
5347 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5348     echo "Enabled ${type}s:"
5349     eval list=\$$(toupper $type)_LIST
5350     print_enabled '_*' $list | print_3_columns
5351     echo
5352 done
5353
5354 license="LGPL version 2.1 or later"
5355 if enabled nonfree; then
5356     license="nonfree and unredistributable"
5357 elif enabled gplv3; then
5358     license="GPL version 3 or later"
5359 elif enabled lgplv3; then
5360     license="LGPL version 3 or later"
5361 elif enabled gpl; then
5362     license="GPL version 2 or later"
5363 fi
5364
5365 echo "License: $license"
5366
5367 echo "Creating config.mak, config.h, and doc/config.texi..."
5368
5369 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5370
5371 enabled stripping || strip="echo skipping strip"
5372
5373 config_files="$TMPH config.mak doc/config.texi"
5374
5375 cat > config.mak <<EOF
5376 # Automatically generated by configure - do not modify!
5377 ifndef FFMPEG_CONFIG_MAK
5378 FFMPEG_CONFIG_MAK=1
5379 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5380 prefix=$prefix
5381 LIBDIR=\$(DESTDIR)$libdir
5382 SHLIBDIR=\$(DESTDIR)$shlibdir
5383 INCDIR=\$(DESTDIR)$incdir
5384 BINDIR=\$(DESTDIR)$bindir
5385 DATADIR=\$(DESTDIR)$datadir
5386 DOCDIR=\$(DESTDIR)$docdir
5387 MANDIR=\$(DESTDIR)$mandir
5388 SRC_PATH=$source_path
5389 ifndef MAIN_MAKEFILE
5390 SRC_PATH:=\$(SRC_PATH:.%=..%)
5391 endif
5392 CC_IDENT=$cc_ident
5393 ARCH=$arch
5394 CC=$cc
5395 CXX=$cxx
5396 AS=$as
5397 LD=$ld
5398 DEPCC=$dep_cc
5399 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5400 DEPAS=$as
5401 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5402 YASM=$yasmexe
5403 DEPYASM=$yasmexe
5404 AR=$ar
5405 ARFLAGS=$arflags
5406 AR_O=$ar_o
5407 RANLIB=$ranlib
5408 STRIP=$strip
5409 CP=cp -p
5410 LN_S=$ln_s
5411 CPPFLAGS=$CPPFLAGS
5412 CFLAGS=$CFLAGS
5413 CXXFLAGS=$CXXFLAGS
5414 ASFLAGS=$ASFLAGS
5415 AS_C=$AS_C
5416 AS_O=$AS_O
5417 CC_C=$CC_C
5418 CC_E=$CC_E
5419 CC_O=$CC_O
5420 CXX_C=$CXX_C
5421 CXX_O=$CXX_O
5422 LD_O=$LD_O
5423 LD_LIB=$LD_LIB
5424 LD_PATH=$LD_PATH
5425 DLLTOOL=$dlltool
5426 WINDRES=$windres
5427 DEPWINDRES=$dep_cc
5428 DOXYGEN=$doxygen
5429 LDFLAGS=$LDFLAGS
5430 LDEXEFLAGS=$LDEXEFLAGS
5431 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5432 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5433 YASMFLAGS=$YASMFLAGS
5434 BUILDSUF=$build_suffix
5435 PROGSSUF=$progs_suffix
5436 FULLNAME=$FULLNAME
5437 LIBPREF=$LIBPREF
5438 LIBSUF=$LIBSUF
5439 LIBNAME=$LIBNAME
5440 SLIBPREF=$SLIBPREF
5441 SLIBSUF=$SLIBSUF
5442 EXESUF=$EXESUF
5443 EXTRA_VERSION=$extra_version
5444 CCDEP=$CCDEP
5445 CXXDEP=$CXXDEP
5446 CCDEP_FLAGS=$CCDEP_FLAGS
5447 ASDEP=$ASDEP
5448 ASDEP_FLAGS=$ASDEP_FLAGS
5449 CC_DEPFLAGS=$CC_DEPFLAGS
5450 AS_DEPFLAGS=$AS_DEPFLAGS
5451 HOSTCC=$host_cc
5452 HOSTLD=$host_ld
5453 HOSTCFLAGS=$host_cflags
5454 HOSTCPPFLAGS=$host_cppflags
5455 HOSTEXESUF=$HOSTEXESUF
5456 HOSTLDFLAGS=$host_ldflags
5457 HOSTLIBS=$host_libs
5458 DEPHOSTCC=$host_cc
5459 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5460 HOSTCCDEP=$HOSTCCDEP
5461 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5462 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5463 HOSTCC_C=$HOSTCC_C
5464 HOSTCC_O=$HOSTCC_O
5465 HOSTLD_O=$HOSTLD_O
5466 TARGET_EXEC=$target_exec $target_exec_args
5467 TARGET_PATH=$target_path
5468 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5469 CFLAGS-ffplay=$sdl_cflags
5470 ZLIB=$($ldflags_filter -lz)
5471 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5472 EXTRALIBS=$extralibs
5473 COMPAT_OBJS=$compat_objs
5474 EXEOBJS=$exeobjs
5475 INSTALL=$install
5476 LIBTARGET=${LIBTARGET}
5477 SLIBNAME=${SLIBNAME}
5478 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5479 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5480 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5481 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5482 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5483 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5484 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5485 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5486 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5487 NOREDZONE_FLAGS=$noredzone_flags
5488 EOF
5489
5490 get_version(){
5491     lcname=lib${1}
5492     name=$(toupper $lcname)
5493     file=$source_path/$lcname/version.h
5494     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5495     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5496     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5497     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5498     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5499     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5500 }
5501
5502 map 'get_version $v' $LIBRARY_LIST
5503
5504 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5505
5506 print_program_libs(){
5507     eval "program_libs=\$${1}_libs"
5508     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5509 }
5510
5511 map 'print_program_libs $v' $PROGRAM_LIST
5512
5513 cat > $TMPH <<EOF
5514 /* Automatically generated by configure - do not modify! */
5515 #ifndef FFMPEG_CONFIG_H
5516 #define FFMPEG_CONFIG_H
5517 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5518 #define FFMPEG_LICENSE "$(c_escape $license)"
5519 #define CONFIG_THIS_YEAR 2014
5520 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5521 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5522 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5523 #define av_restrict $_restrict
5524 #define EXTERN_PREFIX "${extern_prefix}"
5525 #define EXTERN_ASM ${extern_prefix}
5526 #define BUILDSUF "$build_suffix"
5527 #define SLIBSUF "$SLIBSUF"
5528 #define HAVE_MMX2 HAVE_MMXEXT
5529 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5530 EOF
5531
5532 test -n "$assert_level" &&
5533     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5534
5535 test -n "$malloc_prefix" &&
5536     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5537
5538 if enabled yasm; then
5539     append config_files $TMPASM
5540     printf '' >$TMPASM
5541 fi
5542
5543 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5544
5545
5546 mkdir -p doc
5547 echo "@c auto-generated by configure" > doc/config.texi
5548
5549 print_config ARCH_   "$config_files" $ARCH_LIST
5550 print_config HAVE_   "$config_files" $HAVE_LIST
5551 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5552                                      $CONFIG_EXTRA      \
5553                                      $ALL_COMPONENTS    \
5554
5555 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5556 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5557
5558 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5559 cp_if_changed $TMPH config.h
5560 touch .config
5561
5562 enabled yasm && cp_if_changed $TMPASM config.asm
5563
5564 cat > $TMPH <<EOF
5565 /* Generated by ffconf */
5566 #ifndef AVUTIL_AVCONFIG_H
5567 #define AVUTIL_AVCONFIG_H
5568 EOF
5569
5570 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5571
5572 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5573
5574 cp_if_changed $TMPH libavutil/avconfig.h
5575
5576 if test -n "$WARNINGS"; then
5577     printf "\n$WARNINGS"
5578     enabled fatal_warnings && exit 1
5579 fi
5580
5581 # build pkg-config files
5582
5583 lib_version(){
5584     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5585 }
5586
5587 pkgconfig_generate(){
5588     name=$1
5589     shortname=${name#lib}${build_suffix}
5590     comment=$2
5591     version=$3
5592     libs=$4
5593     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5594     requires=${requires%, }
5595     enabled ${name#lib} || return 0
5596     mkdir -p $name
5597     cat <<EOF > $name/$name${build_suffix}.pc
5598 prefix=$prefix
5599 exec_prefix=\${prefix}
5600 libdir=$libdir
5601 includedir=$incdir
5602
5603 Name: $name
5604 Description: $comment
5605 Version: $version
5606 Requires: $(enabled shared || echo $requires)
5607 Requires.private: $(enabled shared && echo $requires)
5608 Conflicts:
5609 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5610 Libs.private: $(enabled shared && echo $libs)
5611 Cflags: -I\${includedir}
5612 EOF
5613
5614 mkdir -p doc/examples/pc-uninstalled
5615 includedir=${source_path}
5616 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5617     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5618 prefix=
5619 exec_prefix=
5620 libdir=\${pcfiledir}/../../../$name
5621 includedir=${includedir}
5622
5623 Name: $name
5624 Description: $comment
5625 Version: $version
5626 Requires: $requires
5627 Conflicts:
5628 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5629 Cflags: -I\${includedir}
5630 EOF
5631 }
5632
5633 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5634 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5635 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5636 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5637 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5638 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5639 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5640 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5641 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"