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-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 110   --enable-raise-major     increase major version numbers in sonames [no]
 111
 112 Program options:
 113   --disable-programs       do not build command line programs
 114   --disable-ffmpeg         disable ffmpeg build
 115   --disable-ffplay         disable ffplay build
 116   --disable-ffprobe        disable ffprobe build
 117   --disable-ffserver       disable ffserver build
 118
 119 Documentation options:
 120   --disable-doc            do not build documentation
 121   --disable-htmlpages      do not build HTML documentation pages
 122   --disable-manpages       do not build man documentation pages
 123   --disable-podpages       do not build POD documentation pages
 124   --disable-txtpages       do not build text documentation pages
 125
 126 Component options:
 127   --disable-avdevice       disable libavdevice build
 128   --disable-avcodec        disable libavcodec build
 129   --disable-avformat       disable libavformat build
 130   --disable-avutil         disable libavutil build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [auto]
 137   --disable-w32threads     disable Win32 threads [auto]
 138   --disable-os2threads     disable OS/2 threads [auto]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148
 149 Hardware accelerators:
 150   --disable-dxva2          disable DXVA2 code [autodetect]
 151   --disable-vaapi          disable VAAPI code [autodetect]
 152   --enable-vda             enable VDA code
 153   --disable-vdpau          disable VDPAU code [autodetect]
 154
 155 Individual component options:
 156   --disable-everything     disable all components listed below
 157   --disable-encoder=NAME   disable encoder NAME
 158   --enable-encoder=NAME    enable encoder NAME
 159   --disable-encoders       disable all encoders
 160   --disable-decoder=NAME   disable decoder NAME
 161   --enable-decoder=NAME    enable decoder NAME
 162   --disable-decoders       disable all decoders
 163   --disable-hwaccel=NAME   disable hwaccel NAME
 164   --enable-hwaccel=NAME    enable hwaccel NAME
 165   --disable-hwaccels       disable all hwaccels
 166   --disable-muxer=NAME     disable muxer NAME
 167   --enable-muxer=NAME      enable muxer NAME
 168   --disable-muxers         disable all muxers
 169   --disable-demuxer=NAME   disable demuxer NAME
 170   --enable-demuxer=NAME    enable demuxer NAME
 171   --disable-demuxers       disable all demuxers
 172   --enable-parser=NAME     enable parser NAME
 173   --disable-parser=NAME    disable parser NAME
 174   --disable-parsers        disable all parsers
 175   --enable-bsf=NAME        enable bitstream filter NAME
 176   --disable-bsf=NAME       disable bitstream filter NAME
 177   --disable-bsfs           disable all bitstream filters
 178   --enable-protocol=NAME   enable protocol NAME
 179   --disable-protocol=NAME  disable protocol NAME
 180   --disable-protocols      disable all protocols
 181   --enable-indev=NAME      enable input device NAME
 182   --disable-indev=NAME     disable input device NAME
 183   --disable-indevs         disable input devices
 184   --enable-outdev=NAME     enable output device NAME
 185   --disable-outdev=NAME    disable output device NAME
 186   --disable-outdevs        disable output devices
 187   --disable-devices        disable all devices
 188   --enable-filter=NAME     enable filter NAME
 189   --disable-filter=NAME    disable filter NAME
 190   --disable-filters        disable all filters
 191
 192 External library support:
 193   --enable-avisynth        enable reading of AviSynth script files [no]
 194   --disable-bzlib          disable bzlib [autodetect]
 195   --enable-fontconfig      enable fontconfig
 196   --enable-frei0r          enable frei0r video filtering
 197   --enable-gnutls          enable gnutls [no]
 198   --disable-iconv          disable iconv [autodetect]
 199   --enable-ladspa          enable LADSPA audio filtering
 200   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 201   --enable-libass          enable libass subtitles rendering [no]
 202   --enable-libbluray       enable BluRay reading using libbluray [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-libgme          enable Game Music Emu via libgme [no]
 213   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 214   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 215   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 216   --enable-libmodplug      enable ModPlug via libmodplug [no]
 217   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 218   --enable-libnut          enable NUT (de)muxing via libnut,
 219                            native (de)muxer exists [no]
 220   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 221   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 222   --enable-libopencv       enable video filtering via libopencv [no]
 223   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 224   --enable-libopus         enable Opus decoding via libopus [no]
 225   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 226   --enable-libquvi         enable quvi input via libquvi [no]
 227   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 228   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 229   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 230   --enable-libsoxr         enable Include libsoxr resampling [no]
 231   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 232   --enable-libssh          enable SFTP protocol via libssh [no]
 233   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 234   --enable-libtheora       enable Theora encoding via libtheora [no]
 235   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 236   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 237   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 238   --enable-libvidstab      enable video stabilization using vid.stab [no]
 239   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 240   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 241   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 242                            native implementation exists [no]
 243   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 244   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 245   --enable-libwebp         enable WebP encoding via libwebp [no]
 246   --enable-libx264         enable H.264 encoding via x264 [no]
 247   --enable-libx265         enable HEVC encoding via x265 [no]
 248   --enable-libxavs         enable AVS encoding via xavs [no]
 249   --enable-libxvid         enable Xvid encoding via xvidcore,
 250                            native MPEG-4/Xvid encoder exists [no]
 251   --enable-libzmq          enable message passing via libzmq [no]
 252   --enable-libzvbi         enable teletext support via libzvbi [no]
 253   --enable-decklink        enable Blackmagick DeckLink output [no]
 254   --enable-openal          enable OpenAL 1.1 capture support [no]
 255   --enable-opencl          enable OpenCL code
 256   --enable-opengl          enable OpenGL rendering [no]
 257   --enable-openssl         enable openssl [no]
 258   --enable-x11grab         enable X11 grabbing [no]
 259   --disable-xlib           disable xlib [autodetect]
 260   --disable-zlib           disable zlib [autodetect]
 261
 262 Toolchain options:
 263   --arch=ARCH              select architecture [$arch]
 264   --cpu=CPU                select the minimum required CPU (affects
 265                            instruction selection, may crash on older CPUs)
 266   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 267   --progs-suffix=SUFFIX    program name suffix []
 268   --enable-cross-compile   assume a cross-compiler is used
 269   --sysroot=PATH           root of cross-build tree
 270   --sysinclude=PATH        location of cross-build system headers
 271   --target-os=OS           compiler targets OS [$target_os]
 272   --target-exec=CMD        command to run executables on target
 273   --target-path=DIR        path to view of build directory on target
 274   --target-samples=DIR     path to samples directory on target
 275   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 276   --toolchain=NAME         set tool defaults according to NAME
 277   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 278   --nm=NM                  use nm tool NM [$nm_default]
 279   --ar=AR                  use archive tool AR [$ar_default]
 280   --as=AS                  use assembler AS [$as_default]
 281   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 282   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 283   --cc=CC                  use C compiler CC [$cc_default]
 284   --cxx=CXX                use C compiler CXX [$cxx_default]
 285   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 286   --ld=LD                  use linker LD [$ld_default]
 287   --pkg-config=PKGCONF     use pkg-config PKGCONF [$pkg_config_default]
 288   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 289   --host-cc=HOSTCC         use host C compiler HOSTCC
 290   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 291   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 292   --host-ld=HOSTLD         use host linker HOSTLD
 293   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 294   --host-libs=HLIBS        use libs HLIBS when linking for host
 295   --host-os=OS             compiler host OS [$target_os]
 296   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 297   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 298   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 299   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 300   --extra-version=STRING   version string suffix []
 301   --optflags=OPTFLAGS      override optimization-related compiler flags
 302   --build-suffix=SUFFIX    library name suffix []
 303   --enable-pic             build position-independent code
 304   --enable-thumb           compile for Thumb instruction set
 305   --enable-lto             use link-time optimization
 306
 307 Advanced options (experts only):
 308   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 309   --disable-symver         disable symbol versioning
 310   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 311   --disable-safe-bitstream-reader
 312                            disable buffer boundary checking in bitreaders
 313                            (faster, but may crash)
 314   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 315   --enable-sram            allow use of on-chip SRAM
 316
 317 Optimization options (experts only):
 318   --disable-asm            disable all assembler optimizations
 319   --disable-altivec        disable AltiVec optimizations
 320   --disable-amd3dnow       disable 3DNow! optimizations
 321   --disable-amd3dnowext    disable 3DNow! extended optimizations
 322   --disable-mmx            disable MMX optimizations
 323   --disable-mmxext         disable MMXEXT optimizations
 324   --disable-sse            disable SSE optimizations
 325   --disable-sse2           disable SSE2 optimizations
 326   --disable-sse3           disable SSE3 optimizations
 327   --disable-ssse3          disable SSSE3 optimizations
 328   --disable-sse4           disable SSE4 optimizations
 329   --disable-sse42          disable SSE4.2 optimizations
 330   --disable-avx            disable AVX optimizations
 331   --disable-xop            disable XOP optimizations
 332   --disable-fma3           disable FMA3 optimizations
 333   --disable-fma4           disable FMA4 optimizations
 334   --disable-avx2           disable AVX2 optimizations
 335   --disable-armv5te        disable armv5te optimizations
 336   --disable-armv6          disable armv6 optimizations
 337   --disable-armv6t2        disable armv6t2 optimizations
 338   --disable-vfp            disable VFP optimizations
 339   --disable-neon           disable NEON optimizations
 340   --disable-inline-asm     disable use of inline assembler
 341   --disable-yasm           disable use of yasm assembler
 342   --disable-mips32r2       disable MIPS32R2 optimizations
 343   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 344   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 345   --disable-mipsfpu        disable floating point MIPS optimizations
 346   --disable-fast-unaligned consider unaligned accesses slow
 347
 348 Developer options (useful when working on FFmpeg itself):
 349   --disable-debug          disable debugging symbols
 350   --enable-debug=LEVEL     set the debug level [$debuglevel]
 351   --disable-optimizations  disable compiler optimizations
 352   --enable-extra-warnings  enable more compiler warnings
 353   --disable-stripping      disable stripping of executables and shared libraries
 354   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 355                            2 causes a slowdown at runtime.
 356   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 357   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 358                            leaks and errors, using the specified valgrind binary.
 359                            Cannot be combined with --target-exec
 360   --enable-ftrapv          Trap arithmetic overflows
 361   --samples=PATH           location of test samples for FATE, if not set use
 362                            \$FATE_SAMPLES at make invocation time.
 363   --enable-neon-clobber-test check NEON registers for clobbering (should be
 364                            used only for debugging purposes)
 365   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 366                            should be used only for debugging purposes)
 367   --enable-random          randomly enable/disable components
 368   --disable-random
 369   --enable-random=LIST     randomly enable/disable specific components or
 370   --disable-random=LIST    component groups. LIST is a comma-separated list
 371                            of NAME[:PROB] entries where NAME is a component
 372                            (group) and PROB the probability associated with
 373                            NAME (default 0.5).
 374   --random-seed=VALUE      seed value for --enable/disable-random
 375
 376 NOTE: Object files are built at the place where configure is launched.
 377 EOF
 378   exit 0
 379 }
 380
 381 quotes='""'
 382
 383 log(){
 384     echo "$@" >> $logfile
 385 }
 386
 387 log_file(){
 388     log BEGIN $1
 389     pr -n -t $1 >> $logfile
 390     log END $1
 391 }
 392
 393 echolog(){
 394     log "$@"
 395     echo "$@"
 396 }
 397
 398 warn(){
 399     log "WARNING: $*"
 400     WARNINGS="${WARNINGS}WARNING: $*\n"
 401 }
 402
 403 die(){
 404     echolog "$@"
 405     cat <<EOF
 406
 407 If you think configure made a mistake, make sure you are using the latest
 408 version from Git.  If the latest version fails, report the problem to the
 409 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 410 EOF
 411     if disabled logging; then
 412         cat <<EOF
 413 Rerun configure with logging enabled (do not use --disable-logging), and
 414 include the log this produces with your report.
 415 EOF
 416     else
 417         cat <<EOF
 418 Include the log file "$logfile" produced by configure as this will help
 419 solving the problem.
 420 EOF
 421     fi
 422     exit 1
 423 }
 424
 425 # Avoid locale weirdness, besides we really just want to translate ASCII.
 426 toupper(){
 427     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 428 }
 429
 430 tolower(){
 431     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 432 }
 433
 434 c_escape(){
 435     echo "$*" | sed 's/["\\]/\\\0/g'
 436 }
 437
 438 sh_quote(){
 439     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 440     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 441     echo "$v"
 442 }
 443
 444 cleanws(){
 445     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
 446 }
 447
 448 filter(){
 449     pat=$1
 450     shift
 451     for v; do
 452         eval "case $v in $pat) echo $v ;; esac"
 453     done
 454 }
 455
 456 filter_out(){
 457     pat=$1
 458     shift
 459     for v; do
 460         eval "case $v in $pat) ;; *) echo $v ;; esac"
 461     done
 462 }
 463
 464 map(){
 465     m=$1
 466     shift
 467     for v; do eval $m; done
 468 }
 469
 470 add_suffix(){
 471     suffix=$1
 472     shift
 473     for v; do echo ${v}${suffix}; done
 474 }
 475
 476 set_all(){
 477     value=$1
 478     shift
 479     for var in $*; do
 480         eval $var=$value
 481     done
 482 }
 483
 484 set_weak(){
 485     value=$1
 486     shift
 487     for var; do
 488         eval : \${$var:=$value}
 489     done
 490 }
 491
 492 sanitize_var_name(){
 493     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 494 }
 495
 496 set_safe(){
 497     var=$1
 498     shift
 499     eval $(sanitize_var_name "$var")='$*'
 500 }
 501
 502 get_safe(){
 503     eval echo \$$(sanitize_var_name "$1")
 504 }
 505
 506 pushvar(){
 507     for pvar in $*; do
 508         eval level=\${${pvar}_level:=0}
 509         eval ${pvar}_${level}="\$$pvar"
 510         eval ${pvar}_level=$(($level+1))
 511     done
 512 }
 513
 514 popvar(){
 515     for pvar in $*; do
 516         eval level=\${${pvar}_level:-0}
 517         test $level = 0 && continue
 518         eval level=$(($level-1))
 519         eval $pvar="\${${pvar}_${level}}"
 520         eval ${pvar}_level=$level
 521         eval unset ${pvar}_${level}
 522     done
 523 }
 524
 525 enable(){
 526     set_all yes $*
 527 }
 528
 529 disable(){
 530     set_all no $*
 531 }
 532
 533 enable_weak(){
 534     set_weak yes $*
 535 }
 536
 537 disable_weak(){
 538     set_weak no $*
 539 }
 540
 541 enable_safe(){
 542     for var; do
 543         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 544     done
 545 }
 546
 547 disable_safe(){
 548     for var; do
 549         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 550     done
 551 }
 552
 553 do_enable_deep(){
 554     for var; do
 555         enabled $var && continue
 556         eval sel="\$${var}_select"
 557         eval sgs="\$${var}_suggest"
 558         pushvar var sgs
 559         enable_deep $sel
 560         popvar sgs
 561         enable_deep_weak $sgs
 562         popvar var
 563     done
 564 }
 565
 566 enable_deep(){
 567     do_enable_deep $*
 568     enable $*
 569 }
 570
 571 enable_deep_weak(){
 572     for var; do
 573         disabled $var && continue
 574         pushvar var
 575         do_enable_deep $var
 576         popvar var
 577         enable_weak $var
 578     done
 579 }
 580
 581 enabled(){
 582     test "${1#!}" = "$1" && op== || op=!=
 583     eval test "x\$${1#!}" $op "xyes"
 584 }
 585
 586 disabled(){
 587     test "${1#!}" = "$1" && op== || op=!=
 588     eval test "x\$${1#!}" $op "xno"
 589 }
 590
 591 enabled_all(){
 592     for opt; do
 593         enabled $opt || return 1
 594     done
 595 }
 596
 597 disabled_all(){
 598     for opt; do
 599         disabled $opt || return 1
 600     done
 601 }
 602
 603 enabled_any(){
 604     for opt; do
 605         enabled $opt && return 0
 606     done
 607 }
 608
 609 disabled_any(){
 610     for opt; do
 611         disabled $opt && return 0
 612     done
 613     return 1
 614 }
 615
 616 set_default(){
 617     for opt; do
 618         eval : \${$opt:=\$${opt}_default}
 619     done
 620 }
 621
 622 is_in(){
 623     value=$1
 624     shift
 625     for var in $*; do
 626         [ $var = $value ] && return 0
 627     done
 628     return 1
 629 }
 630
 631 do_check_deps(){
 632     for cfg; do
 633         cfg="${cfg#!}"
 634         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 635         disabled ${cfg}_checking && continue
 636         enable ${cfg}_checking
 637         append allopts $cfg
 638
 639         eval dep_all="\$${cfg}_deps"
 640         eval dep_any="\$${cfg}_deps_any"
 641         eval dep_sel="\$${cfg}_select"
 642         eval dep_sgs="\$${cfg}_suggest"
 643         eval dep_ifa="\$${cfg}_if"
 644         eval dep_ifn="\$${cfg}_if_any"
 645
 646         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 647         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 648         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 649
 650         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 651         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 652         enabled_all  $dep_all || disable $cfg
 653         enabled_any  $dep_any || disable $cfg
 654         disabled_any $dep_sel && disable $cfg
 655
 656         if enabled $cfg; then
 657             enable_deep $dep_sel
 658             enable_deep_weak $dep_sgs
 659         fi
 660
 661         disable ${cfg}_checking
 662     done
 663 }
 664
 665 check_deps(){
 666     unset allopts
 667
 668     do_check_deps "$@"
 669
 670     for cfg in $allopts; do
 671         enabled $cfg || continue
 672         eval dep_extralibs="\$${cfg}_extralibs"
 673         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 674     done
 675 }
 676
 677 print_config(){
 678     pfx=$1
 679     files=$2
 680     shift 2
 681     map 'eval echo "$v \${$v:-no}"' "$@" |
 682     awk "BEGIN { split(\"$files\", files) }
 683         {
 684             c = \"$pfx\" toupper(\$1);
 685             v = \$2;
 686             sub(/yes/, 1, v);
 687             sub(/no/,  0, v);
 688             for (f in files) {
 689                 file = files[f];
 690                 if (file ~ /\\.h\$/) {
 691                     printf(\"#define %s %d\\n\", c, v) >>file;
 692                 } else if (file ~ /\\.asm\$/) {
 693                     printf(\"%%define %s %d\\n\", c, v) >>file;
 694                 } else if (file ~ /\\.mak\$/) {
 695                     n = -v ? \"\" : \"!\";
 696                     printf(\"%s%s=yes\\n\", n, c) >>file;
 697                 } else if (file ~ /\\.texi\$/) {
 698                     pre = -v ? \"\" : \"@c \";
 699                     yesno = \$2;
 700                     c2 = tolower(c);
 701                     gsub(/_/, \"-\", c2);
 702                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 703                 }
 704             }
 705         }"
 706 }
 707
 708 print_enabled(){
 709     suf=$1
 710     shift
 711     for v; do
 712         enabled $v && printf "%s\n" ${v%$suf};
 713     done
 714 }
 715
 716 append(){
 717     var=$1
 718     shift
 719     eval "$var=\"\$$var $*\""
 720 }
 721
 722 prepend(){
 723     var=$1
 724     shift
 725     eval "$var=\"$* \$$var\""
 726 }
 727
 728 add_cppflags(){
 729     append CPPFLAGS "$@"
 730 }
 731
 732 add_cflags(){
 733     append CFLAGS $($cflags_filter "$@")
 734 }
 735
 736 add_cxxflags(){
 737     append CXXFLAGS $($cflags_filter "$@")
 738 }
 739
 740 add_asflags(){
 741     append ASFLAGS $($asflags_filter "$@")
 742 }
 743
 744 add_ldflags(){
 745     append LDFLAGS $($ldflags_filter "$@")
 746 }
 747
 748 add_stripflags(){
 749     append ASMSTRIPFLAGS "$@"
 750 }
 751
 752 add_extralibs(){
 753     prepend extralibs $($ldflags_filter "$@")
 754 }
 755
 756 add_host_cppflags(){
 757     append host_cppflags "$@"
 758 }
 759
 760 add_host_cflags(){
 761     append host_cflags $($host_cflags_filter "$@")
 762 }
 763
 764 add_host_ldflags(){
 765     append host_ldflags $($host_ldflags_filter "$@")
 766 }
 767
 768 add_compat(){
 769     append compat_objs $1
 770     shift
 771     map 'add_cppflags -D$v' "$@"
 772 }
 773
 774 check_cmd(){
 775     log "$@"
 776     "$@" >> $logfile 2>&1
 777 }
 778
 779 cc_o(){
 780     eval printf '%s\\n' $CC_O
 781 }
 782
 783 cc_e(){
 784     eval printf '%s\\n' $CC_E
 785 }
 786
 787 check_cc(){
 788     log check_cc "$@"
 789     cat > $TMPC
 790     log_file $TMPC
 791     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 792 }
 793
 794 check_cxx(){
 795     log check_cxx "$@"
 796     cat > $TMPCPP
 797     log_file $TMPCPP
 798     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 799 }
 800
 801 check_cpp(){
 802     log check_cpp "$@"
 803     cat > $TMPC
 804     log_file $TMPC
 805     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 806 }
 807
 808 as_o(){
 809     eval printf '%s\\n' $AS_O
 810 }
 811
 812 check_as(){
 813     log check_as "$@"
 814     cat > $TMPS
 815     log_file $TMPS
 816     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 817 }
 818
 819 check_inline_asm(){
 820     log check_inline_asm "$@"
 821     name="$1"
 822     code="$2"
 823     shift 2
 824     disable $name
 825     check_cc "$@" <<EOF && enable $name
 826 void foo(void){ __asm__ volatile($code); }
 827 EOF
 828 }
 829
 830 check_insn(){
 831     log check_insn "$@"
 832     check_inline_asm ${1}_inline "\"$2\""
 833     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 834 }
 835
 836 check_yasm(){
 837     log check_yasm "$@"
 838     echo "$1" > $TMPS
 839     log_file $TMPS
 840     shift 1
 841     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 842 }
 843
 844 ld_o(){
 845     eval printf '%s\\n' $LD_O
 846 }
 847
 848 check_ld(){
 849     log check_ld "$@"
 850     type=$1
 851     shift 1
 852     flags=$(filter_out '-l*|*.so' $@)
 853     libs=$(filter '-l*|*.so' $@)
 854     check_$type $($cflags_filter $flags) || return
 855     flags=$($ldflags_filter $flags)
 856     libs=$($ldflags_filter $libs)
 857     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 858 }
 859
 860 print_include(){
 861     hdr=$1
 862     test "${hdr%.h}" = "${hdr}" &&
 863         echo "#include $hdr"    ||
 864         echo "#include <$hdr>"
 865 }
 866
 867 check_code(){
 868     log check_code "$@"
 869     check=$1
 870     headers=$2
 871     code=$3
 872     shift 3
 873     {
 874         for hdr in $headers; do
 875             print_include $hdr
 876         done
 877         echo "int main(void) { $code; return 0; }"
 878     } | check_$check "$@"
 879 }
 880
 881 check_cppflags(){
 882     log check_cppflags "$@"
 883     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 884 int x;
 885 EOF
 886 }
 887
 888 test_cflags(){
 889     log test_cflags "$@"
 890     set -- $($cflags_filter "$@")
 891     check_cc "$@" <<EOF
 892 int x;
 893 EOF
 894 }
 895
 896 check_cflags(){
 897     log check_cflags "$@"
 898     test_cflags "$@" && add_cflags "$@"
 899 }
 900
 901 check_cxxflags(){
 902     log check_cxxflags "$@"
 903     set -- $($cflags_filter "$@")
 904     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 905 int x;
 906 EOF
 907 }
 908
 909 test_ldflags(){
 910     log test_ldflags "$@"
 911     check_ld "cc" "$@" <<EOF
 912 int main(void){ return 0; }
 913 EOF
 914 }
 915
 916 check_ldflags(){
 917     log check_ldflags "$@"
 918     test_ldflags "$@" && add_ldflags "$@"
 919 }
 920
 921 test_stripflags(){
 922     log test_stripflags "$@"
 923     # call check_cc to get a fresh TMPO
 924     check_cc <<EOF
 925 int main(void) { return 0; }
 926 EOF
 927     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 928 }
 929
 930 check_stripflags(){
 931     log check_stripflags "$@"
 932     test_stripflags "$@" && add_stripflags "$@"
 933 }
 934
 935 check_header(){
 936     log check_header "$@"
 937     header=$1
 938     shift
 939     disable_safe $header
 940     check_cpp "$@" <<EOF && enable_safe $header
 941 #include <$header>
 942 int x;
 943 EOF
 944 }
 945
 946 check_func(){
 947     log check_func "$@"
 948     func=$1
 949     shift
 950     disable $func
 951     check_ld "cc" "$@" <<EOF && enable $func
 952 extern int $func();
 953 int main(void){ $func(); }
 954 EOF
 955 }
 956
 957 check_mathfunc(){
 958     log check_mathfunc "$@"
 959     func=$1
 960     narg=$2
 961     shift 2
 962     test $narg = 2 && args="f, g" || args="f"
 963     disable $func
 964     check_ld "cc" "$@" <<EOF && enable $func
 965 #include <math.h>
 966 float foo(float f, float g) { return $func($args); }
 967 int main(void){ return (int) foo; }
 968 EOF
 969 }
 970
 971 check_func_headers(){
 972     log check_func_headers "$@"
 973     headers=$1
 974     funcs=$2
 975     shift 2
 976     {
 977         for hdr in $headers; do
 978             print_include $hdr
 979         done
 980         for func in $funcs; do
 981             echo "long check_$func(void) { return (long) $func; }"
 982         done
 983         echo "int main(void) { return 0; }"
 984     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 985 }
 986
 987 check_class_headers_cpp(){
 988     log check_class_headers_cpp "$@"
 989     headers=$1
 990     classes=$2
 991     shift 2
 992     {
 993         for hdr in $headers; do
 994             echo "#include <$hdr>"
 995         done
 996         echo "int main(void) { "
 997         i=1
 998         for class in $classes; do
 999             echo "$class obj$i;"
1000             i=$(expr $i + 1)
1001         done
1002         echo "return 0; }"
1003     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1004 }
1005
1006 check_cpp_condition(){
1007     log check_cpp_condition "$@"
1008     header=$1
1009     condition=$2
1010     shift 2
1011     check_cpp "$@" <<EOF
1012 #include <$header>
1013 #if !($condition)
1014 #error "unsatisfied condition: $condition"
1015 #endif
1016 EOF
1017 }
1018
1019 check_lib(){
1020     log check_lib "$@"
1021     header="$1"
1022     func="$2"
1023     shift 2
1024     check_header $header && check_func $func "$@" && add_extralibs "$@"
1025 }
1026
1027 check_lib2(){
1028     log check_lib2 "$@"
1029     headers="$1"
1030     funcs="$2"
1031     shift 2
1032     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1033 }
1034
1035 check_lib_cpp(){
1036     log check_lib_cpp "$@"
1037     headers="$1"
1038     classes="$2"
1039     shift 2
1040     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1041 }
1042
1043 check_pkg_config(){
1044     log check_pkg_config "$@"
1045     pkgandversion="$1"
1046     pkg="${1%% *}"
1047     headers="$2"
1048     funcs="$3"
1049     shift 3
1050     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1051     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1052     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1053     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1054         set_safe ${pkg}_cflags $pkg_cflags   &&
1055         set_safe ${pkg}_libs   $pkg_libs
1056 }
1057
1058 check_exec(){
1059     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1060 }
1061
1062 check_exec_crash(){
1063     code=$(cat)
1064
1065     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1066     # are safe but may not be available everywhere.  Thus we use
1067     # raise(SIGTERM) instead.  The check is run in a subshell so we
1068     # can redirect the "Terminated" message from the shell.  SIGBUS
1069     # is not defined by standard C so it is used conditionally.
1070
1071     (check_exec "$@") >> $logfile 2>&1 <<EOF
1072 #include <signal.h>
1073 static void sighandler(int sig){
1074     raise(SIGTERM);
1075 }
1076 int foo(void){
1077     $code
1078 }
1079 int (*func_ptr)(void) = foo;
1080 int main(void){
1081     signal(SIGILL, sighandler);
1082     signal(SIGFPE, sighandler);
1083     signal(SIGSEGV, sighandler);
1084 #ifdef SIGBUS
1085     signal(SIGBUS, sighandler);
1086 #endif
1087     return func_ptr();
1088 }
1089 EOF
1090 }
1091
1092 check_type(){
1093     log check_type "$@"
1094     headers=$1
1095     type=$2
1096     shift 2
1097     disable_safe "$type"
1098     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1099 }
1100
1101 check_struct(){
1102     log check_struct "$@"
1103     headers=$1
1104     struct=$2
1105     member=$3
1106     shift 3
1107     disable_safe "${struct}_${member}"
1108     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1109         enable_safe "${struct}_${member}"
1110 }
1111
1112 check_builtin(){
1113     log check_builtin "$@"
1114     name=$1
1115     headers=$2
1116     builtin=$3
1117     shift 3
1118     disable "$name"
1119     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1120 }
1121
1122 check_compile_assert(){
1123     log check_compile_assert "$@"
1124     name=$1
1125     headers=$2
1126     condition=$3
1127     shift 3
1128     disable "$name"
1129     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1130 }
1131
1132 require(){
1133     name="$1"
1134     header="$2"
1135     func="$3"
1136     shift 3
1137     check_lib $header $func "$@" || die "ERROR: $name not found"
1138 }
1139
1140 require2(){
1141     name="$1"
1142     headers="$2"
1143     func="$3"
1144     shift 3
1145     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1146 }
1147
1148 require_cpp(){
1149     name="$1"
1150     headers="$2"
1151     classes="$3"
1152     shift 3
1153     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1154 }
1155
1156 require_pkg_config(){
1157     pkg="$1"
1158     check_pkg_config "$@" || die "ERROR: $pkg not found"
1159     add_cflags    $(get_safe ${pkg}_cflags)
1160     add_extralibs $(get_safe ${pkg}_libs)
1161 }
1162
1163 require_libfreetype(){
1164     log require_libfreetype "$@"
1165     pkg="freetype2"
1166     check_cmd $pkg_config --exists --print-errors $pkg \
1167       || die "ERROR: $pkg not found"
1168     pkg_cflags=$($pkg_config --cflags $pkg)
1169     pkg_libs=$($pkg_config --libs $pkg)
1170     {
1171         echo "#include <ft2build.h>"
1172         echo "#include FT_FREETYPE_H"
1173         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1174         echo "int main(void) { return 0; }"
1175     } | check_ld "cc" $pkg_cflags $pkg_libs \
1176       && set_safe ${pkg}_cflags $pkg_cflags \
1177       && set_safe ${pkg}_libs   $pkg_libs \
1178       || die "ERROR: $pkg not found"
1179     add_cflags    $(get_safe ${pkg}_cflags)
1180     add_extralibs $(get_safe ${pkg}_libs)
1181 }
1182
1183 hostcc_e(){
1184     eval printf '%s\\n' $HOSTCC_E
1185 }
1186
1187 hostcc_o(){
1188     eval printf '%s\\n' $HOSTCC_O
1189 }
1190
1191 check_host_cc(){
1192     log check_host_cc "$@"
1193     cat > $TMPC
1194     log_file $TMPC
1195     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1196 }
1197
1198 check_host_cpp(){
1199     log check_host_cpp "$@"
1200     cat > $TMPC
1201     log_file $TMPC
1202     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1203 }
1204
1205 check_host_cppflags(){
1206     log check_host_cppflags "$@"
1207     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1208 int x;
1209 EOF
1210 }
1211
1212 check_host_cflags(){
1213     log check_host_cflags "$@"
1214     set -- $($host_cflags_filter "$@")
1215     check_host_cc "$@" <<EOF && append host_cflags "$@"
1216 int x;
1217 EOF
1218 }
1219
1220 check_host_cpp_condition(){
1221     log check_host_cpp_condition "$@"
1222     header=$1
1223     condition=$2
1224     shift 2
1225     check_host_cpp "$@" <<EOF
1226 #include <$header>
1227 #if !($condition)
1228 #error "unsatisfied condition: $condition"
1229 #endif
1230 EOF
1231 }
1232
1233 apply(){
1234     file=$1
1235     shift
1236     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1237 }
1238
1239 cp_if_changed(){
1240     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1241     mkdir -p "$(dirname $2)"
1242     $cp_f "$1" "$2"
1243 }
1244
1245 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1246 # system-dependent things.
1247
1248 COMPONENT_LIST="
1249     bsfs
1250     decoders
1251     demuxers
1252     encoders
1253     filters
1254     hwaccels
1255     indevs
1256     muxers
1257     outdevs
1258     parsers
1259     protocols
1260 "
1261
1262 EXAMPLE_LIST="
1263     avio_reading_example
1264     avcodec_example
1265     demuxing_decoding_example
1266     filter_audio_example
1267     filtering_audio_example
1268     filtering_video_example
1269     metadata_example
1270     muxing_example
1271     remuxing_example
1272     resampling_audio_example
1273     scaling_video_example
1274     transcode_aac_example
1275 "
1276
1277 EXTERNAL_LIBRARY_LIST="
1278     avisynth
1279     bzlib
1280     crystalhd
1281     decklink
1282     fontconfig
1283     frei0r
1284     gnutls
1285     iconv
1286     ladspa
1287     libaacplus
1288     libass
1289     libbluray
1290     libcaca
1291     libcdio
1292     libcelt
1293     libdc1394
1294     libfaac
1295     libfdk_aac
1296     libflite
1297     libfreetype
1298     libgme
1299     libgsm
1300     libiec61883
1301     libilbc
1302     libmodplug
1303     libmp3lame
1304     libnut
1305     libopencore_amrnb
1306     libopencore_amrwb
1307     libopencv
1308     libopenjpeg
1309     libopus
1310     libpulse
1311     libquvi
1312     librtmp
1313     libschroedinger
1314     libshine
1315     libsoxr
1316     libspeex
1317     libssh
1318     libstagefright_h264
1319     libtheora
1320     libtwolame
1321     libutvideo
1322     libv4l2
1323     libvidstab
1324     libvo_aacenc
1325     libvo_amrwbenc
1326     libvorbis
1327     libvpx
1328     libwavpack
1329     libwebp
1330     libx264
1331     libx265
1332     libxavs
1333     libxvid
1334     libzmq
1335     libzvbi
1336     openal
1337     opencl
1338     opengl
1339     openssl
1340     x11grab
1341     xlib
1342     zlib
1343 "
1344
1345 DOCUMENT_LIST="
1346     doc
1347     htmlpages
1348     manpages
1349     podpages
1350     txtpages
1351 "
1352
1353 FEATURE_LIST="
1354     ftrapv
1355     gray
1356     hardcoded_tables
1357     runtime_cpudetect
1358     safe_bitstream_reader
1359     shared
1360     small
1361     sram
1362     static
1363     swscale_alpha
1364 "
1365
1366 HWACCEL_LIST="
1367     dxva2
1368     vaapi
1369     vda
1370     vdpau
1371     xvmc
1372 "
1373
1374 LIBRARY_LIST="
1375     avcodec
1376     avdevice
1377     avfilter
1378     avformat
1379     avresample
1380     avutil
1381     postproc
1382     swresample
1383     swscale
1384 "
1385
1386 LICENSE_LIST="
1387     gpl
1388     nonfree
1389     version3
1390 "
1391
1392 PROGRAM_LIST="
1393     ffplay
1394     ffprobe
1395     ffserver
1396     ffmpeg
1397 "
1398
1399 SUBSYSTEM_LIST="
1400     dct
1401     dwt
1402     error_resilience
1403     fast_unaligned
1404     fft
1405     lsp
1406     lzo
1407     mdct
1408     network
1409     rdft
1410 "
1411
1412 CONFIG_LIST="
1413     $COMPONENT_LIST
1414     $DOCUMENT_LIST
1415     $EXAMPLE_LIST
1416     $EXTERNAL_LIBRARY_LIST
1417     $FEATURE_LIST
1418     $HWACCEL_LIST
1419     $LICENSE_LIST
1420     $LIBRARY_LIST
1421     $PROGRAM_LIST
1422     $SUBSYSTEM_LIST
1423     incompatible_libav_abi
1424     incompatible_fork_abi
1425     memalign_hack
1426     memory_poisoning
1427     neon_clobber_test
1428     pic
1429     pod2man
1430     raise_major
1431     thumb
1432     xmm_clobber_test
1433 "
1434
1435 THREADS_LIST="
1436     pthreads
1437     os2threads
1438     w32threads
1439 "
1440
1441 ATOMICS_LIST="
1442     atomics_gcc
1443     atomics_suncc
1444     atomics_win32
1445 "
1446
1447 ARCH_LIST="
1448     aarch64
1449     alpha
1450     arm
1451     avr32
1452     avr32_ap
1453     avr32_uc
1454     bfin
1455     ia64
1456     m68k
1457     mips
1458     mips64
1459     parisc
1460     ppc
1461     ppc64
1462     s390
1463     sh4
1464     sparc
1465     sparc64
1466     tilegx
1467     tilepro
1468     tomi
1469     x86
1470     x86_32
1471     x86_64
1472 "
1473
1474 ARCH_EXT_LIST_ARM="
1475     armv5te
1476     armv6
1477     armv6t2
1478     neon
1479     vfp
1480     vfpv3
1481 "
1482
1483 ARCH_EXT_LIST_X86_SIMD="
1484     amd3dnow
1485     amd3dnowext
1486     avx
1487     avx2
1488     fma3
1489     fma4
1490     mmx
1491     mmxext
1492     sse
1493     sse2
1494     sse3
1495     sse4
1496     sse42
1497     ssse3
1498     xop
1499 "
1500
1501 ARCH_EXT_LIST_PPC="
1502     altivec
1503     dcbzl
1504     ldbrx
1505     ppc4xx
1506 "
1507
1508 ARCH_EXT_LIST_X86="
1509     $ARCH_EXT_LIST_X86_SIMD
1510     cpunop
1511     i686
1512 "
1513
1514 ARCH_EXT_LIST="
1515     $ARCH_EXT_LIST_ARM
1516     $ARCH_EXT_LIST_PPC
1517     $ARCH_EXT_LIST_X86
1518     mipsfpu
1519     mips32r2
1520     mipsdspr1
1521     mipsdspr2
1522     loongson
1523     vis
1524 "
1525
1526 ARCH_FEATURES="
1527     aligned_stack
1528     fast_64bit
1529     fast_clz
1530     fast_cmov
1531     local_aligned_8
1532     local_aligned_16
1533 "
1534
1535 BUILTIN_LIST="
1536     atomic_cas_ptr
1537     machine_rw_barrier
1538     MemoryBarrier
1539     mm_empty
1540     rdtsc
1541     sarestart
1542     sync_val_compare_and_swap
1543 "
1544 HAVE_LIST_CMDLINE="
1545     inline_asm
1546     symver
1547     yasm
1548 "
1549
1550 HAVE_LIST_PUB="
1551     bigendian
1552     fast_unaligned
1553     incompatible_libav_abi
1554     incompatible_fork_abi
1555 "
1556
1557 HEADERS_LIST="
1558     alsa_asoundlib_h
1559     altivec_h
1560     arpa_inet_h
1561     asm_types_h
1562     cdio_paranoia_h
1563     cdio_paranoia_paranoia_h
1564     CL_cl_h
1565     dev_bktr_ioctl_bt848_h
1566     dev_bktr_ioctl_meteor_h
1567     dev_ic_bt8xx_h
1568     dev_video_bktr_ioctl_bt848_h
1569     dev_video_meteor_ioctl_meteor_h
1570     direct_h
1571     dlfcn_h
1572     dxva_h
1573     ES2_gl_h
1574     gsm_h
1575     io_h
1576     mach_mach_time_h
1577     machine_ioctl_bt848_h
1578     machine_ioctl_meteor_h
1579     malloc_h
1580     openjpeg_1_5_openjpeg_h
1581     OpenGL_gl3_h
1582     poll_h
1583     sndio_h
1584     soundcard_h
1585     sys_mman_h
1586     sys_param_h
1587     sys_resource_h
1588     sys_select_h
1589     sys_soundcard_h
1590     sys_time_h
1591     sys_un_h
1592     sys_videoio_h
1593     termios_h
1594     unistd_h
1595     windows_h
1596     winsock2_h
1597 "
1598
1599 MATH_FUNCS="
1600     atanf
1601     atan2f
1602     cbrt
1603     cbrtf
1604     cosf
1605     exp2
1606     exp2f
1607     expf
1608     isinf
1609     isnan
1610     ldexpf
1611     llrint
1612     llrintf
1613     log2
1614     log2f
1615     log10f
1616     lrint
1617     lrintf
1618     powf
1619     rint
1620     round
1621     roundf
1622     sinf
1623     trunc
1624     truncf
1625 "
1626
1627 SYSTEM_FUNCS="
1628     access
1629     aligned_malloc
1630     clock_gettime
1631     closesocket
1632     CommandLineToArgvW
1633     CryptGenRandom
1634     dlopen
1635     fcntl
1636     flt_lim
1637     fork
1638     getaddrinfo
1639     gethrtime
1640     getopt
1641     GetProcessAffinityMask
1642     GetProcessMemoryInfo
1643     GetProcessTimes
1644     getrusage
1645     getservbyport
1646     GetSystemTimeAsFileTime
1647     gettimeofday
1648     glob
1649     glXGetProcAddress
1650     inet_aton
1651     isatty
1652     jack_port_get_latency_range
1653     kbhit
1654     localtime_r
1655     lzo1x_999_compress
1656     mach_absolute_time
1657     MapViewOfFile
1658     memalign
1659     mkstemp
1660     mmap
1661     mprotect
1662     nanosleep
1663     PeekNamedPipe
1664     posix_memalign
1665     pthread_cancel
1666     sched_getaffinity
1667     SetConsoleTextAttribute
1668     setmode
1669     setrlimit
1670     Sleep
1671     strerror_r
1672     sysconf
1673     sysctl
1674     usleep
1675     VirtualAlloc
1676     wglGetProcAddress
1677 "
1678
1679 TOOLCHAIN_FEATURES="
1680     asm_mod_q
1681     attribute_may_alias
1682     attribute_packed
1683     ebp_available
1684     ebx_available
1685     gnu_as
1686     gnu_windres
1687     ibm_asm
1688     inline_asm_labels
1689     pragma_deprecated
1690     rsync_contimeout
1691     symver_asm_label
1692     symver_gnu_asm
1693     vfp_args
1694     xform_asm
1695     xmm_clobbers
1696 "
1697
1698 TYPES_LIST="
1699     socklen_t
1700     struct_addrinfo
1701     struct_group_source_req
1702     struct_ip_mreq_source
1703     struct_ipv6_mreq
1704     struct_pollfd
1705     struct_rusage_ru_maxrss
1706     struct_sctp_event_subscribe
1707     struct_sockaddr_in6
1708     struct_sockaddr_sa_len
1709     struct_sockaddr_storage
1710     struct_stat_st_mtim_tv_nsec
1711     struct_v4l2_frmivalenum_discrete
1712 "
1713
1714 HAVE_LIST="
1715     $ARCH_EXT_LIST
1716     $(add_suffix _external $ARCH_EXT_LIST)
1717     $(add_suffix _inline   $ARCH_EXT_LIST)
1718     $ARCH_FEATURES
1719     $ATOMICS_LIST
1720     $BUILTIN_LIST
1721     $HAVE_LIST_CMDLINE
1722     $HAVE_LIST_PUB
1723     $HEADERS_LIST
1724     $MATH_FUNCS
1725     $SYSTEM_FUNCS
1726     $THREADS_LIST
1727     $TOOLCHAIN_FEATURES
1728     $TYPES_LIST
1729     atomics_native
1730     dos_paths
1731     libc_msvcrt
1732     libdc1394_1
1733     libdc1394_2
1734     makeinfo
1735     perl
1736     pod2man
1737     sdl
1738     texi2html
1739     threads
1740     vdpau_x11
1741     xlib
1742 "
1743
1744 # options emitted with CONFIG_ prefix but not available on the command line
1745 CONFIG_EXTRA="
1746     aandcttables
1747     ac3dsp
1748     audio_frame_queue
1749     dsputil
1750     exif
1751     frame_thread_encoder
1752     gcrypt
1753     golomb
1754     gplv3
1755     h263dsp
1756     h264chroma
1757     h264dsp
1758     h264pred
1759     h264qpel
1760     hpeldsp
1761     huffman
1762     intrax8
1763     lgplv3
1764     llviddsp
1765     lpc
1766     mpegaudio
1767     mpegaudiodsp
1768     mpegvideo
1769     mpegvideoenc
1770     nettle
1771     rangecoder
1772     riffdec
1773     riffenc
1774     rtpdec
1775     rtpenc_chain
1776     sinewin
1777     videodsp
1778     vp3dsp
1779 "
1780
1781 CMDLINE_SELECT="
1782     $ARCH_EXT_LIST
1783     $CONFIG_LIST
1784     $HAVE_LIST_CMDLINE
1785     $THREADS_LIST
1786     asm
1787     cross_compile
1788     debug
1789     extra_warnings
1790     logging
1791     lto
1792     optimizations
1793     rpath
1794     stripping
1795 "
1796
1797 PATHS_LIST="
1798     bindir
1799     datadir
1800     docdir
1801     incdir
1802     libdir
1803     mandir
1804     prefix
1805     shlibdir
1806 "
1807
1808 CMDLINE_SET="
1809     $PATHS_LIST
1810     ar
1811     arch
1812     as
1813     assert_level
1814     build_suffix
1815     cc
1816     cpu
1817     cross_prefix
1818     cxx
1819     dep_cc
1820     extra_version
1821     host_cc
1822     host_cflags
1823     host_ld
1824     host_ldflags
1825     host_libs
1826     host_os
1827     install
1828     ld
1829     logfile
1830     malloc_prefix
1831     nm
1832     optflags
1833     pkg_config
1834     pkg_config_flags
1835     progs_suffix
1836     random_seed
1837     samples
1838     strip
1839     sysinclude
1840     sysroot
1841     target_exec
1842     target_os
1843     target_path
1844     target_samples
1845     tempprefix
1846     toolchain
1847     valgrind
1848     yasmexe
1849 "
1850
1851 CMDLINE_APPEND="
1852     extra_cflags
1853     extra_cxxflags
1854     host_cppflags
1855 "
1856
1857 # code dependency declarations
1858
1859 # architecture extensions
1860
1861 armv5te_deps="arm"
1862 armv6_deps="arm"
1863 armv6t2_deps="arm"
1864 neon_deps_any="aarch64 arm"
1865 vfp_deps_any="aarch64 arm"
1866 vfpv3_deps="vfp"
1867
1868 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1869
1870 mipsfpu_deps="mips"
1871 mips32r2_deps="mips"
1872 mipsdspr1_deps="mips"
1873 mipsdspr2_deps="mips"
1874
1875 altivec_deps="ppc"
1876 ppc4xx_deps="ppc"
1877
1878 cpunop_deps="i686"
1879 x86_64_select="i686"
1880 x86_64_suggest="fast_cmov"
1881
1882 amd3dnow_deps="mmx"
1883 amd3dnowext_deps="amd3dnow"
1884 i686_deps="x86"
1885 mmx_deps="x86"
1886 mmxext_deps="mmx"
1887 sse_deps="mmxext"
1888 sse2_deps="sse"
1889 sse3_deps="sse2"
1890 ssse3_deps="sse3"
1891 sse4_deps="ssse3"
1892 sse42_deps="sse4"
1893 avx_deps="sse42"
1894 xop_deps="avx"
1895 fma3_deps="avx"
1896 fma4_deps="avx"
1897 avx2_deps="avx"
1898
1899 mmx_external_deps="yasm"
1900 mmx_inline_deps="inline_asm"
1901 mmx_suggest="mmx_external mmx_inline"
1902
1903 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1904     eval dep=\$${ext}_deps
1905     eval ${ext}_external_deps='"${dep}_external"'
1906     eval ${ext}_inline_deps='"${dep}_inline"'
1907     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1908 done
1909
1910 aligned_stack_if_any="aarch64 ppc x86"
1911 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1912 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1913 fast_unaligned_if_any="aarch64 ppc x86"
1914
1915 need_memalign="altivec neon sse"
1916
1917 # system capabilities
1918 log2_deps="!libc_msvcrt"
1919
1920 symver_if_any="symver_asm_label symver_gnu_asm"
1921
1922 # threading support
1923 atomics_gcc_if="sync_val_compare_and_swap"
1924 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1925 atomics_win32_if="MemoryBarrier"
1926 atomics_native_if_any="$ATOMICS_LIST"
1927 w32threads_deps="atomics_native"
1928 threads_if_any="$THREADS_LIST"
1929
1930 # subsystems
1931 dct_select="rdft"
1932 error_resilience_select="dsputil"
1933 frame_thread_encoder_deps="encoders threads"
1934 mdct_select="fft"
1935 rdft_select="fft"
1936 mpegaudio_select="mpegaudiodsp"
1937 mpegaudiodsp_select="dct"
1938 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1939 mpegvideoenc_select="dsputil mpegvideo"
1940
1941 # decoders / encoders
1942 aac_decoder_select="mdct sinewin"
1943 aac_encoder_select="audio_frame_queue mdct sinewin"
1944 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1945 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1946 ac3_encoder_select="mdct ac3dsp dsputil"
1947 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1948 aic_decoder_select="dsputil golomb"
1949 alac_encoder_select="lpc"
1950 als_decoder_select="dsputil"
1951 amrnb_decoder_select="lsp"
1952 amrwb_decoder_select="lsp"
1953 amv_decoder_select="sp5x_decoder exif"
1954 amv_encoder_select="aandcttables"
1955 ape_decoder_select="dsputil"
1956 asv1_decoder_select="dsputil"
1957 asv1_encoder_select="dsputil"
1958 asv2_decoder_select="dsputil"
1959 asv2_encoder_select="dsputil"
1960 atrac1_decoder_select="mdct sinewin"
1961 atrac3_decoder_select="mdct"
1962 atrac3p_decoder_select="mdct sinewin"
1963 avrn_decoder_select="exif"
1964 bink_decoder_select="dsputil hpeldsp"
1965 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1966 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1967 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1968 cllc_decoder_select="dsputil"
1969 comfortnoise_encoder_select="lpc"
1970 cook_decoder_select="dsputil mdct sinewin"
1971 cscd_decoder_select="lzo"
1972 cscd_decoder_suggest="zlib"
1973 dca_decoder_select="mdct"
1974 dirac_decoder_select="dsputil dwt golomb videodsp"
1975 dnxhd_decoder_select="dsputil"
1976 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1977 dvvideo_decoder_select="dsputil"
1978 dvvideo_encoder_select="dsputil"
1979 dxa_decoder_select="zlib"
1980 eac3_decoder_select="ac3_decoder"
1981 eac3_encoder_select="ac3_encoder"
1982 eamad_decoder_select="aandcttables dsputil mpegvideo"
1983 eatgq_decoder_select="aandcttables"
1984 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
1985 exr_decoder_select="zlib"
1986 ffv1_decoder_select="golomb rangecoder"
1987 ffv1_encoder_select="rangecoder"
1988 ffvhuff_decoder_select="huffyuv_decoder"
1989 ffvhuff_encoder_select="huffyuv_encoder"
1990 fic_decoder_select="dsputil golomb"
1991 flac_decoder_select="golomb"
1992 flac_encoder_select="dsputil golomb lpc"
1993 flashsv_decoder_select="zlib"
1994 flashsv_encoder_select="zlib"
1995 flashsv2_encoder_select="zlib"
1996 flashsv2_decoder_select="zlib"
1997 flv_decoder_select="h263_decoder"
1998 flv_encoder_select="h263_encoder"
1999 fourxm_decoder_select="dsputil"
2000 fraps_decoder_select="dsputil huffman"
2001 g2m_decoder_select="dsputil zlib"
2002 g729_decoder_select="dsputil"
2003 h261_decoder_select="error_resilience mpegvideo"
2004 h261_encoder_select="aandcttables mpegvideoenc"
2005 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
2006 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2007 h263i_decoder_select="h263_decoder"
2008 h263p_encoder_select="h263_encoder"
2009 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2010 h264_decoder_suggest="error_resilience"
2011 hevc_decoder_select="dsputil golomb videodsp"
2012 huffyuv_decoder_select="dsputil llviddsp"
2013 huffyuv_encoder_select="dsputil huffman llviddsp"
2014 iac_decoder_select="imc_decoder"
2015 imc_decoder_select="dsputil fft mdct sinewin"
2016 indeo3_decoder_select="hpeldsp"
2017 interplay_video_decoder_select="hpeldsp"
2018 jpegls_decoder_select="golomb mjpeg_decoder"
2019 jpegls_encoder_select="golomb"
2020 jv_decoder_select="dsputil"
2021 lagarith_decoder_select="dsputil"
2022 ljpeg_encoder_select="aandcttables mpegvideoenc"
2023 loco_decoder_select="golomb"
2024 mdec_decoder_select="dsputil error_resilience mpegvideo"
2025 metasound_decoder_select="lsp mdct sinewin"
2026 mimic_decoder_select="dsputil hpeldsp"
2027 mjpeg_decoder_select="dsputil hpeldsp exif"
2028 mjpeg_encoder_select="aandcttables mpegvideoenc"
2029 mjpegb_decoder_select="mjpeg_decoder"
2030 mlp_decoder_select="mlp_parser"
2031 motionpixels_decoder_select="dsputil"
2032 mp1_decoder_select="mpegaudio"
2033 mp1float_decoder_select="mpegaudio"
2034 mp2_decoder_select="mpegaudio"
2035 mp2float_decoder_select="mpegaudio"
2036 mp3_decoder_select="mpegaudio"
2037 mp3adu_decoder_select="mpegaudio"
2038 mp3adufloat_decoder_select="mpegaudio"
2039 mp3float_decoder_select="mpegaudio"
2040 mp3on4_decoder_select="mpegaudio"
2041 mp3on4float_decoder_select="mpegaudio"
2042 mpc7_decoder_select="dsputil mpegaudiodsp"
2043 mpc8_decoder_select="mpegaudiodsp"
2044 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2045 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2046 mpeg1video_decoder_select="error_resilience mpegvideo"
2047 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2048 mpeg2video_decoder_select="error_resilience mpegvideo"
2049 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2050 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2051 mpeg4_encoder_select="h263_encoder"
2052 msmpeg4v1_decoder_select="h263_decoder"
2053 msmpeg4v2_decoder_select="h263_decoder"
2054 msmpeg4v2_encoder_select="h263_encoder"
2055 msmpeg4v3_decoder_select="h263_decoder"
2056 msmpeg4v3_encoder_select="h263_encoder"
2057 mss2_decoder_select="error_resilience vc1_decoder"
2058 mxpeg_decoder_select="mjpeg_decoder"
2059 nellymoser_decoder_select="mdct sinewin"
2060 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2061 nuv_decoder_select="dsputil lzo"
2062 png_decoder_select="zlib"
2063 png_encoder_select="dsputil zlib"
2064 prores_decoder_select="dsputil"
2065 prores_encoder_select="dsputil"
2066 qcelp_decoder_select="lsp"
2067 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2068 ra_144_encoder_select="audio_frame_queue lpc"
2069 ralf_decoder_select="golomb"
2070 rtjpeg_decoder_select="dsputil"
2071 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2072 rv10_encoder_select="h263_encoder"
2073 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2074 rv20_encoder_select="h263_encoder"
2075 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2076 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2077 shorten_decoder_select="golomb"
2078 sipr_decoder_select="lsp"
2079 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2080 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2081 sonic_decoder_select="golomb rangecoder"
2082 sonic_encoder_select="golomb rangecoder"
2083 sonic_ls_encoder_select="golomb"
2084 sp5x_decoder_select="mjpeg_decoder"
2085 svq1_decoder_select="hpeldsp"
2086 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2087 svq3_decoder_select="h264_decoder hpeldsp mpegvideo"
2088 svq3_decoder_suggest="zlib"
2089 tak_decoder_select="dsputil"
2090 theora_decoder_select="vp3_decoder"
2091 thp_decoder_select="mjpeg_decoder"
2092 tiff_decoder_suggest="zlib"
2093 tiff_encoder_suggest="zlib"
2094 truehd_decoder_select="mlp_parser"
2095 truemotion2_decoder_select="dsputil"
2096 truespeech_decoder_select="dsputil"
2097 tscc_decoder_select="zlib"
2098 twinvq_decoder_select="mdct lsp sinewin"
2099 utvideo_decoder_select="dsputil"
2100 utvideo_encoder_select="dsputil huffman"
2101 vble_decoder_select="dsputil"
2102 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2103 vc1image_decoder_select="vc1_decoder"
2104 vorbis_decoder_select="mdct"
2105 vorbis_encoder_select="mdct"
2106 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2107 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2108 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2109 vp6a_decoder_select="vp6_decoder"
2110 vp6f_decoder_select="vp6_decoder"
2111 vp8_decoder_select="h264pred videodsp"
2112 vp9_decoder_select="videodsp"
2113 webp_decoder_select="vp8_decoder"
2114 wmapro_decoder_select="mdct sinewin"
2115 wmav1_decoder_select="mdct sinewin"
2116 wmav1_encoder_select="mdct sinewin"
2117 wmav2_decoder_select="mdct sinewin"
2118 wmav2_encoder_select="mdct sinewin"
2119 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2120 wmv1_decoder_select="h263_decoder"
2121 wmv1_encoder_select="h263_encoder"
2122 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2123 wmv2_encoder_select="h263_encoder"
2124 wmv3_decoder_select="vc1_decoder"
2125 wmv3image_decoder_select="wmv3_decoder"
2126 zerocodec_decoder_select="zlib"
2127 zlib_decoder_select="zlib"
2128 zlib_encoder_select="zlib"
2129 zmbv_decoder_select="zlib"
2130 zmbv_encoder_select="zlib"
2131
2132 # hardware accelerators
2133 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2134 dxva2_deps="dxva2api_h"
2135 vaapi_deps="va_va_h"
2136 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2137 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2138 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2139 xvmc_deps="X11_extensions_XvMClib_h"
2140
2141 h263_vaapi_hwaccel_deps="vaapi"
2142 h263_vaapi_hwaccel_select="h263_decoder"
2143 h263_vdpau_hwaccel_deps="vdpau"
2144 h263_vdpau_hwaccel_select="h263_decoder"
2145 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2146 h264_dxva2_hwaccel_deps="dxva2"
2147 h264_dxva2_hwaccel_select="h264_decoder"
2148 h264_vaapi_hwaccel_deps="vaapi"
2149 h264_vaapi_hwaccel_select="h264_decoder"
2150 h264_vda_decoder_deps="vda"
2151 h264_vda_decoder_select="h264_decoder"
2152 h264_vda_hwaccel_deps="vda"
2153 h264_vda_hwaccel_select="h264_decoder"
2154 h264_vdpau_decoder_deps="vdpau"
2155 h264_vdpau_decoder_select="h264_decoder"
2156 h264_vdpau_hwaccel_deps="vdpau"
2157 h264_vdpau_hwaccel_select="h264_decoder"
2158 mpeg_vdpau_decoder_deps="vdpau"
2159 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2160 mpeg_xvmc_hwaccel_deps="xvmc"
2161 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2162 mpeg1_vdpau_decoder_deps="vdpau"
2163 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2164 mpeg1_vdpau_hwaccel_deps="vdpau"
2165 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2166 mpeg1_xvmc_hwaccel_deps="xvmc"
2167 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2168 mpeg2_crystalhd_decoder_select="crystalhd"
2169 mpeg2_dxva2_hwaccel_deps="dxva2"
2170 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2171 mpeg2_vaapi_hwaccel_deps="vaapi"
2172 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2173 mpeg2_vdpau_hwaccel_deps="vdpau"
2174 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2175 mpeg2_xvmc_hwaccel_deps="xvmc"
2176 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2177 mpeg4_crystalhd_decoder_select="crystalhd"
2178 mpeg4_vaapi_hwaccel_deps="vaapi"
2179 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2180 mpeg4_vdpau_decoder_deps="vdpau"
2181 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2182 mpeg4_vdpau_hwaccel_deps="vdpau"
2183 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2184 msmpeg4_crystalhd_decoder_select="crystalhd"
2185 vc1_crystalhd_decoder_select="crystalhd"
2186 vc1_dxva2_hwaccel_deps="dxva2"
2187 vc1_dxva2_hwaccel_select="vc1_decoder"
2188 vc1_vaapi_hwaccel_deps="vaapi"
2189 vc1_vaapi_hwaccel_select="vc1_decoder"
2190 vc1_vdpau_decoder_deps="vdpau"
2191 vc1_vdpau_decoder_select="vc1_decoder"
2192 vc1_vdpau_hwaccel_deps="vdpau"
2193 vc1_vdpau_hwaccel_select="vc1_decoder"
2194 wmv3_crystalhd_decoder_select="crystalhd"
2195 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2196 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2197 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2198 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2199
2200 # parsers
2201 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2202 hevc_parser_select="hevc_decoder"
2203 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
2204 mpegvideo_parser_select="error_resilience mpegvideo"
2205 vc1_parser_select="mpegvideo"
2206
2207 # external libraries
2208 libaacplus_encoder_deps="libaacplus"
2209 libcelt_decoder_deps="libcelt"
2210 libfaac_encoder_deps="libfaac"
2211 libfaac_encoder_select="audio_frame_queue"
2212 libfdk_aac_decoder_deps="libfdk_aac"
2213 libfdk_aac_encoder_deps="libfdk_aac"
2214 libfdk_aac_encoder_select="audio_frame_queue"
2215 libgme_demuxer_deps="libgme"
2216 libgsm_decoder_deps="libgsm"
2217 libgsm_encoder_deps="libgsm"
2218 libgsm_ms_decoder_deps="libgsm"
2219 libgsm_ms_encoder_deps="libgsm"
2220 libilbc_decoder_deps="libilbc"
2221 libilbc_encoder_deps="libilbc"
2222 libmodplug_demuxer_deps="libmodplug"
2223 libmp3lame_encoder_deps="libmp3lame"
2224 libmp3lame_encoder_select="audio_frame_queue"
2225 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2226 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2227 libopencore_amrnb_encoder_select="audio_frame_queue"
2228 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2229 libopenjpeg_decoder_deps="libopenjpeg"
2230 libopenjpeg_encoder_deps="libopenjpeg"
2231 libopus_decoder_deps="libopus"
2232 libopus_encoder_deps="libopus"
2233 libopus_encoder_select="audio_frame_queue"
2234 libquvi_demuxer_deps="libquvi"
2235 libschroedinger_decoder_deps="libschroedinger"
2236 libschroedinger_encoder_deps="libschroedinger"
2237 libshine_encoder_deps="libshine"
2238 libshine_encoder_select="audio_frame_queue"
2239 libspeex_decoder_deps="libspeex"
2240 libspeex_encoder_deps="libspeex"
2241 libspeex_encoder_select="audio_frame_queue"
2242 libstagefright_h264_decoder_deps="libstagefright_h264"
2243 libtheora_encoder_deps="libtheora"
2244 libtwolame_encoder_deps="libtwolame"
2245 libvo_aacenc_encoder_deps="libvo_aacenc"
2246 libvo_aacenc_encoder_select="audio_frame_queue"
2247 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2248 libvorbis_decoder_deps="libvorbis"
2249 libvorbis_encoder_deps="libvorbis"
2250 libvorbis_encoder_select="audio_frame_queue"
2251 libvpx_vp8_decoder_deps="libvpx"
2252 libvpx_vp8_encoder_deps="libvpx"
2253 libvpx_vp9_decoder_deps="libvpx"
2254 libvpx_vp9_encoder_deps="libvpx"
2255 libwavpack_encoder_deps="libwavpack"
2256 libwebp_encoder_deps="libwebp"
2257 libx264_encoder_deps="libx264"
2258 libx264rgb_encoder_deps="libx264"
2259 libx265_encoder_deps="libx265"
2260 libxavs_encoder_deps="libxavs"
2261 libxvid_encoder_deps="libxvid"
2262 libutvideo_decoder_deps="libutvideo"
2263 libutvideo_encoder_deps="libutvideo"
2264 libzvbi_teletext_decoder_deps="libzvbi"
2265
2266 # demuxers / muxers
2267 ac3_demuxer_select="ac3_parser"
2268 asf_demuxer_select="riffdec"
2269 asf_muxer_select="riffenc"
2270 asf_stream_muxer_select="asf_muxer"
2271 avi_demuxer_select="riffdec"
2272 avi_muxer_select="riffenc"
2273 avisynth_demuxer_deps="avisynth"
2274 avisynth_demuxer_select="riffdec"
2275 caf_demuxer_select="riffdec"
2276 dirac_demuxer_select="dirac_parser"
2277 dts_demuxer_select="dca_parser"
2278 dtshd_demuxer_select="dca_parser"
2279 dxa_demuxer_select="riffdec"
2280 eac3_demuxer_select="ac3_parser"
2281 f4v_muxer_select="mov_muxer"
2282 flac_demuxer_select="flac_parser"
2283 hds_muxer_select="flv_muxer"
2284 hls_muxer_select="mpegts_muxer"
2285 ipod_muxer_select="mov_muxer"
2286 ismv_muxer_select="mov_muxer"
2287 libnut_demuxer_deps="libnut"
2288 libnut_muxer_deps="libnut"
2289 matroska_audio_muxer_select="matroska_muxer"
2290 matroska_demuxer_select="riffdec"
2291 matroska_demuxer_suggest="bzlib lzo zlib"
2292 matroska_muxer_select="riffenc"
2293 mmf_muxer_select="riffenc"
2294 mov_demuxer_select="riffdec"
2295 mov_demuxer_suggest="zlib"
2296 mov_muxer_select="riffenc rtpenc_chain"
2297 mp3_demuxer_select="mpegaudio_parser"
2298 mp4_muxer_select="mov_muxer"
2299 mpegts_muxer_select="adts_muxer latm_muxer"
2300 mpegtsraw_demuxer_select="mpegts_demuxer"
2301 mxf_d10_muxer_select="mxf_muxer"
2302 nut_muxer_select="riffenc"
2303 nuv_demuxer_select="riffdec"
2304 ogg_demuxer_select="golomb"
2305 psp_muxer_select="mov_muxer"
2306 rtp_demuxer_select="sdp_demuxer"
2307 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2308 rtsp_demuxer_select="http_protocol rtpdec"
2309 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2310 sap_demuxer_select="sdp_demuxer"
2311 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2312 sdp_demuxer_select="rtpdec"
2313 smoothstreaming_muxer_select="ismv_muxer"
2314 spdif_muxer_select="aac_parser"
2315 tak_demuxer_select="tak_parser"
2316 tg2_muxer_select="mov_muxer"
2317 tgp_muxer_select="mov_muxer"
2318 vobsub_demuxer_select="mpegps_demuxer"
2319 w64_demuxer_select="wav_demuxer"
2320 w64_muxer_select="wav_muxer"
2321 wav_demuxer_select="riffdec"
2322 wav_muxer_select="riffenc"
2323 webm_muxer_select="riffenc"
2324 wtv_demuxer_select="riffdec"
2325 wtv_muxer_select="riffenc"
2326 xmv_demuxer_select="riffdec"
2327 xwma_demuxer_select="riffdec"
2328
2329 # indevs / outdevs
2330 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2331 alsa_outdev_deps="alsa_asoundlib_h"
2332 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2333 caca_outdev_deps="libcaca"
2334 decklink_outdev_deps="decklink pthreads"
2335 decklink_outdev_extralibs="-lstdc++"
2336 dshow_indev_deps="IBaseFilter"
2337 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2338 dv1394_indev_deps="dv1394"
2339 dv1394_indev_select="dv_demuxer"
2340 fbdev_indev_deps="linux_fb_h"
2341 fbdev_outdev_deps="linux_fb_h"
2342 iec61883_indev_deps="libiec61883"
2343 jack_indev_deps="jack_jack_h sem_timedwait"
2344 lavfi_indev_deps="avfilter"
2345 libcdio_indev_deps="libcdio"
2346 libdc1394_indev_deps="libdc1394"
2347 libv4l2_indev_deps="libv4l2"
2348 openal_indev_deps="openal"
2349 opengl_outdev_deps="opengl"
2350 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2351 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2352 pulse_indev_deps="libpulse"
2353 pulse_outdev_deps="libpulse"
2354 sdl_outdev_deps="sdl"
2355 sndio_indev_deps="sndio_h"
2356 sndio_outdev_deps="sndio_h"
2357 v4l_indev_deps="linux_videodev_h"
2358 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2359 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2360 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2361 vfwcap_indev_extralibs="-lavicap32"
2362 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2363 xv_outdev_extralibs="-lXv -lX11 -lXext"
2364 x11grab_indev_deps="x11grab"
2365
2366 # protocols
2367 bluray_protocol_deps="libbluray"
2368 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2369 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2370 ffrtmpcrypt_protocol_select="tcp_protocol"
2371 ffrtmphttp_protocol_deps="!librtmp_protocol"
2372 ffrtmphttp_protocol_select="http_protocol"
2373 ftp_protocol_select="tcp_protocol"
2374 gopher_protocol_select="network"
2375 http_protocol_select="tcp_protocol"
2376 httpproxy_protocol_select="tcp_protocol"
2377 https_protocol_select="tls_protocol"
2378 librtmp_protocol_deps="librtmp"
2379 librtmpe_protocol_deps="librtmp"
2380 librtmps_protocol_deps="librtmp"
2381 librtmpt_protocol_deps="librtmp"
2382 librtmpte_protocol_deps="librtmp"
2383 libssh_protocol_deps="libssh"
2384 mmsh_protocol_select="http_protocol"
2385 mmst_protocol_select="network"
2386 rtmp_protocol_deps="!librtmp_protocol"
2387 rtmp_protocol_select="tcp_protocol"
2388 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2389 rtmps_protocol_deps="!librtmp_protocol"
2390 rtmps_protocol_select="tls_protocol"
2391 rtmpt_protocol_select="ffrtmphttp_protocol"
2392 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2393 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2394 rtp_protocol_select="udp_protocol"
2395 sctp_protocol_deps="struct_sctp_event_subscribe"
2396 sctp_protocol_select="network"
2397 srtp_protocol_select="rtp_protocol"
2398 tcp_protocol_select="network"
2399 tls_protocol_deps_any="openssl gnutls"
2400 tls_protocol_select="tcp_protocol"
2401 udp_protocol_select="network"
2402 unix_protocol_deps="sys_un_h"
2403 unix_protocol_select="network"
2404
2405 # filters
2406 aconvert_filter_deps="swresample"
2407 amovie_filter_deps="avcodec avformat"
2408 aresample_filter_deps="swresample"
2409 ass_filter_deps="libass"
2410 asyncts_filter_deps="avresample"
2411 atempo_filter_deps="avcodec"
2412 atempo_filter_select="rdft"
2413 azmq_filter_deps="libzmq"
2414 blackframe_filter_deps="gpl"
2415 boxblur_filter_deps="gpl"
2416 colormatrix_filter_deps="gpl"
2417 cropdetect_filter_deps="gpl"
2418 dctdnoiz_filter_deps="avcodec"
2419 dctdnoiz_filter_select="dct"
2420 delogo_filter_deps="gpl"
2421 deshake_filter_deps="avcodec"
2422 deshake_filter_select="dsputil"
2423 drawtext_filter_deps="libfreetype"
2424 ebur128_filter_deps="gpl"
2425 flite_filter_deps="libflite"
2426 frei0r_filter_deps="frei0r dlopen"
2427 frei0r_filter_extralibs='$ldl'
2428 frei0r_src_filter_deps="frei0r dlopen"
2429 frei0r_src_filter_extralibs='$ldl'
2430 geq_filter_deps="gpl"
2431 histeq_filter_deps="gpl"
2432 hqdn3d_filter_deps="gpl"
2433 interlace_filter_deps="gpl"
2434 kerndeint_filter_deps="gpl"
2435 ladspa_filter_deps="ladspa dlopen"
2436 mcdeint_filter_deps="avcodec gpl"
2437 movie_filter_deps="avcodec avformat"
2438 mp_filter_deps="gpl avcodec swscale inline_asm"
2439 mpdecimate_filter_deps="gpl avcodec"
2440 mptestsrc_filter_deps="gpl"
2441 negate_filter_deps="lut_filter"
2442 perspective_filter_deps="gpl"
2443 ocv_filter_deps="libopencv"
2444 owdenoise_filter_deps="gpl"
2445 pan_filter_deps="swresample"
2446 phase_filter_deps="gpl"
2447 pp_filter_deps="gpl postproc"
2448 pullup_filter_deps="gpl"
2449 removelogo_filter_deps="avcodec avformat swscale"
2450 resample_filter_deps="avresample"
2451 sab_filter_deps="gpl swscale"
2452 scale_filter_deps="swscale"
2453 smartblur_filter_deps="gpl swscale"
2454 showspectrum_filter_deps="avcodec"
2455 showspectrum_filter_select="rdft"
2456 spp_filter_deps="gpl avcodec"
2457 spp_filter_select="fft"
2458 stereo3d_filter_deps="gpl"
2459 subtitles_filter_deps="avformat avcodec libass"
2460 super2xsai_filter_deps="gpl"
2461 tinterlace_filter_deps="gpl"
2462 vidstabdetect_filter_deps="libvidstab"
2463 vidstabtransform_filter_deps="libvidstab"
2464 pixfmts_super2xsai_test_deps="super2xsai_filter"
2465 tinterlace_merge_test_deps="tinterlace_filter"
2466 tinterlace_pad_test_deps="tinterlace_filter"
2467 zmq_filter_deps="libzmq"
2468
2469 # examples
2470 avio_reading="avformat avcodec avutil"
2471 avcodec_example_deps="avcodec avutil"
2472 demuxing_decoding_example_deps="avcodec avformat avutil"
2473 filter_audio_example_deps="avfilter avutil"
2474 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2475 filtering_video_example_deps="avfilter avcodec avformat avutil"
2476 metadata_example_deps="avformat avutil"
2477 muxing_example_deps="avcodec avformat avutil swscale"
2478 remuxing_example_deps="avcodec avformat avutil"
2479 resampling_audio_example_deps="avutil swresample"
2480 scaling_video_example_deps="avutil swscale"
2481 transcode_aac_example_deps="avcodec avformat swresample"
2482
2483 # libraries
2484 avcodec_deps="avutil"
2485 avdevice_deps="avutil avcodec avformat"
2486 avfilter_deps="avutil"
2487 avformat_deps="avutil avcodec"
2488 avresample_deps="avutil"
2489 postproc_deps="avutil gpl"
2490 swscale_deps="avutil"
2491
2492 # programs
2493 ffmpeg_deps="avcodec avfilter avformat swresample"
2494 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2495                null_filter
2496                setpts_filter trim_filter"
2497 ffplay_deps="avcodec avformat swscale swresample sdl"
2498 ffplay_libs='$sdl_libs'
2499 ffplay_select="rdft crop_filter"
2500 ffprobe_deps="avcodec avformat"
2501 ffserver_deps="avformat fork sarestart"
2502 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2503
2504 # documentation
2505 podpages_deps="perl"
2506 manpages_deps="perl pod2man"
2507 htmlpages_deps="perl texi2html"
2508 txtpages_deps="perl makeinfo"
2509 doc_deps_any="manpages htmlpages podpages txtpages"
2510
2511 # default parameters
2512
2513 logfile="config.log"
2514
2515 # installation paths
2516 prefix_default="/usr/local"
2517 bindir_default='${prefix}/bin'
2518 datadir_default='${prefix}/share/ffmpeg'
2519 docdir_default='${prefix}/share/doc/ffmpeg'
2520 incdir_default='${prefix}/include'
2521 libdir_default='${prefix}/lib'
2522 mandir_default='${prefix}/share/man'
2523 shlibdir_default="$libdir_default"
2524
2525 # toolchain
2526 ar_default="ar"
2527 cc_default="gcc"
2528 cxx_default="g++"
2529 host_cc_default="gcc"
2530 cp_f="cp -f"
2531 install="install"
2532 ln_s="ln -s -f"
2533 nm_default="nm -g"
2534 objformat="elf"
2535 pkg_config_default=pkg-config
2536 ranlib="ranlib"
2537 strip_default="strip"
2538 yasmexe_default="yasm"
2539 windres_default="windres"
2540
2541 nogas=":"
2542
2543 # OS
2544 target_os_default=$(tolower $(uname -s))
2545 host_os=$target_os_default
2546
2547 # machine
2548 if test "$target_os_default" = aix; then
2549     arch_default=$(uname -p)
2550 else
2551     arch_default=$(uname -m)
2552 fi
2553 cpu="generic"
2554
2555 # configurable options
2556 enable $PROGRAM_LIST
2557 enable $DOCUMENT_LIST
2558 enable $EXAMPLE_LIST
2559 enable $(filter_out avresample $LIBRARY_LIST)
2560 enable stripping
2561
2562 enable asm
2563 enable debug
2564 enable doc
2565 enable optimizations
2566 enable runtime_cpudetect
2567 enable safe_bitstream_reader
2568 enable static
2569 enable swscale_alpha
2570
2571 # Enable hwaccels by default.
2572 enable dxva2 vaapi vdpau xvmc
2573 enable xlib
2574
2575 # build settings
2576 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2577 LIBPREF="lib"
2578 LIBSUF=".a"
2579 FULLNAME='$(NAME)$(BUILDSUF)'
2580 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2581 SLIBPREF="lib"
2582 SLIBSUF=".so"
2583 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2584 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2585 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2586 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2587 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2588 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2589
2590 asflags_filter=echo
2591 cflags_filter=echo
2592 ldflags_filter=echo
2593
2594 AS_C='-c'
2595 AS_O='-o $@'
2596 CC_C='-c'
2597 CC_E='-E -o $@'
2598 CC_O='-o $@'
2599 CXX_C='-c'
2600 CXX_O='-o $@'
2601 LD_O='-o $@'
2602 LD_LIB='-l%'
2603 LD_PATH='-L'
2604 HOSTCC_C='-c'
2605 HOSTCC_E='-E -o $@'
2606 HOSTCC_O='-o $@'
2607 HOSTLD_O='-o $@'
2608
2609 host_libs='-lm'
2610 host_cflags_filter=echo
2611 host_ldflags_filter=echo
2612
2613 target_path='$(CURDIR)'
2614
2615 # since the object filename is not given with the -MM flag, the compiler
2616 # is only able to print the basename, and we must add the path ourselves
2617 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2618 DEPFLAGS='-MM'
2619
2620 # find source path
2621 if test -f configure; then
2622     source_path=.
2623 else
2624     source_path=$(cd $(dirname "$0"); pwd)
2625     echo "$source_path" | grep -q '[[:blank:]]' &&
2626         die "Out of tree builds are impossible with whitespace in source path."
2627     test -e "$source_path/config.h" &&
2628         die "Out of tree builds are impossible with config.h in source dir."
2629 fi
2630
2631 for v in "$@"; do
2632     r=${v#*=}
2633     l=${v%"$r"}
2634     r=$(sh_quote "$r")
2635     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2636 done
2637
2638 find_things(){
2639     thing=$1
2640     pattern=$2
2641     file=$source_path/$3
2642     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2643 }
2644
2645 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2646 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2647 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2648 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2649 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2650 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2651 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2652 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2653 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2654 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2655 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2656
2657 ALL_COMPONENTS="
2658     $BSF_LIST
2659     $DECODER_LIST
2660     $DEMUXER_LIST
2661     $ENCODER_LIST
2662     $FILTER_LIST
2663     $HWACCEL_LIST
2664     $INDEV_LIST
2665     $MUXER_LIST
2666     $OUTDEV_LIST
2667     $PARSER_LIST
2668     $PROTOCOL_LIST
2669 "
2670
2671 for n in $COMPONENT_LIST; do
2672     v=$(toupper ${n%s})_LIST
2673     eval enable \$$v
2674     eval ${n}_if_any="\$$v"
2675 done
2676
2677 enable $ARCH_EXT_LIST
2678
2679 die_unknown(){
2680     echo "Unknown option \"$1\"."
2681     echo "See $0 --help for available options."
2682     exit 1
2683 }
2684
2685 print_3_columns() {
2686     cat | tr ' ' '\n' | sort | pr -r -3 -t
2687 }
2688
2689 show_list() {
2690     suffix=_$1
2691     shift
2692     echo $* | sed s/$suffix//g | print_3_columns
2693     exit 0
2694 }
2695
2696 rand_list(){
2697     IFS=', '
2698     set -- $*
2699     unset IFS
2700     for thing; do
2701         comp=${thing%:*}
2702         prob=${thing#$comp}
2703         prob=${prob#:}
2704         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2705         echo "prob ${prob:-0.5}"
2706         printf '%s\n' $comp
2707     done
2708 }
2709
2710 do_random(){
2711     action=$1
2712     shift
2713     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2714     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2715 }
2716
2717 for opt do
2718     optval="${opt#*=}"
2719     case "$opt" in
2720         --extra-ldflags=*)
2721             add_ldflags $optval
2722         ;;
2723         --extra-libs=*)
2724             add_extralibs $optval
2725         ;;
2726         --disable-devices)
2727             disable $INDEV_LIST $OUTDEV_LIST
2728         ;;
2729         --enable-debug=*)
2730             debuglevel="$optval"
2731         ;;
2732         --disable-programs)
2733             disable $PROGRAM_LIST
2734         ;;
2735         --disable-everything)
2736             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2737         ;;
2738         --disable-all)
2739             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2740             disable $LIBRARY_LIST $PROGRAM_LIST doc
2741         ;;
2742         --enable-random|--disable-random)
2743             action=${opt%%-random}
2744             do_random ${action#--} $COMPONENT_LIST
2745         ;;
2746         --enable-random=*|--disable-random=*)
2747             action=${opt%%-random=*}
2748             do_random ${action#--} $optval
2749         ;;
2750         --enable-*=*|--disable-*=*)
2751             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2752             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2753             eval list=\$$(toupper $thing)_LIST
2754             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2755             list=$(filter "$name" $list)
2756             [ "$list" = "" ] && warn "Option $opt did not match anything"
2757             $action $list
2758         ;;
2759         --enable-?*|--disable-?*)
2760             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2761             if is_in $option $COMPONENT_LIST; then
2762                 test $action = disable && action=unset
2763                 eval $action \$$(toupper ${option%s})_LIST
2764             elif is_in $option $CMDLINE_SELECT; then
2765                 $action $option
2766             else
2767                 die_unknown $opt
2768             fi
2769         ;;
2770         --list-*)
2771             NAME="${opt#--list-}"
2772             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2773             NAME=${NAME%s}
2774             eval show_list $NAME \$$(toupper $NAME)_LIST
2775         ;;
2776         --help|-h) show_help
2777         ;;
2778         --fatal-warnings) enable fatal_warnings
2779         ;;
2780         *)
2781             optname="${opt%%=*}"
2782             optname="${optname#--}"
2783             optname=$(echo "$optname" | sed 's/-/_/g')
2784             if is_in $optname $CMDLINE_SET; then
2785                 eval $optname='$optval'
2786             elif is_in $optname $CMDLINE_APPEND; then
2787                 append $optname "$optval"
2788             else
2789                 die_unknown $opt
2790             fi
2791         ;;
2792     esac
2793 done
2794
2795 disabled logging && logfile=/dev/null
2796
2797 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2798 set >> $logfile
2799
2800 test -n "$cross_prefix" && enable cross_compile
2801
2802 if enabled cross_compile; then
2803     test -n "$arch" && test -n "$target_os" ||
2804         die "Must specify target arch and OS when cross-compiling"
2805 fi
2806
2807 ar_default="${cross_prefix}${ar_default}"
2808 cc_default="${cross_prefix}${cc_default}"
2809 cxx_default="${cross_prefix}${cxx_default}"
2810 nm_default="${cross_prefix}${nm_default}"
2811 pkg_config_default="${cross_prefix}${pkg_config_default}"
2812 ranlib="${cross_prefix}${ranlib}"
2813 strip_default="${cross_prefix}${strip_default}"
2814 windres_default="${cross_prefix}${windres_default}"
2815
2816 sysinclude_default="${sysroot}/usr/include"
2817
2818 test -n "$valgrind" && toolchain="valgrind-memcheck"
2819
2820 case "$toolchain" in
2821     clang-asan)
2822         cc_default="clang"
2823         add_cflags  -fsanitize=address
2824         add_ldflags -fsanitize=address
2825     ;;
2826     clang-tsan)
2827         cc_default="clang"
2828         add_cflags  -fsanitize=thread -pie
2829         add_ldflags -fsanitize=thread -pie
2830     ;;
2831     clang-usan)
2832         cc_default="clang"
2833         add_cflags  -fsanitize=undefined
2834         add_ldflags -fsanitize=undefined
2835     ;;
2836     gcc-asan)
2837         cc_default="gcc"
2838         add_cflags  -fsanitize=address
2839         add_ldflags -fsanitize=address
2840     ;;
2841     gcc-tsan)
2842         cc_default="gcc"
2843         add_cflags  -fsanitize=thread -pie -fPIC
2844         add_ldflags -fsanitize=thread -pie -fPIC
2845     ;;
2846     gcc-usan)
2847         cc_default="gcc"
2848         add_cflags  -fsanitize=undefined
2849         add_ldflags -fsanitize=undefined
2850     ;;
2851     valgrind-massif)
2852         target_exec_default=${valgrind:-"valgrind"}
2853         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"
2854     ;;
2855     valgrind-memcheck)
2856         target_exec_default=${valgrind:-"valgrind"}
2857         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2858     ;;
2859     msvc)
2860         # Check whether the current MSVC version needs the C99 converter.
2861         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2862         # support enough of C99 to build ffmpeg. Default to the new
2863         # behaviour if the regexp was unable to match anything, since this
2864         # successfully parses the version number of existing supported
2865         # versions that require the converter (MSVC 2010 and 2012).
2866         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2867         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2868             cc_default="cl"
2869         else
2870             cc_default="c99wrap cl"
2871         fi
2872         ld_default="link"
2873         nm_default="dumpbin -symbols"
2874         ar_default="lib"
2875         target_os_default="win32"
2876         # Use a relative path for TMPDIR. This makes sure all the
2877         # ffconf temp files are written with a relative path, avoiding
2878         # issues with msys/win32 path conversion for MSVC parameters
2879         # such as -Fo<file> or -out:<file>.
2880         TMPDIR=.
2881     ;;
2882     icl)
2883         cc_default="icl"
2884         ld_default="xilink"
2885         nm_default="dumpbin -symbols"
2886         ar_default="xilib"
2887         target_os_default="win32"
2888         TMPDIR=.
2889     ;;
2890     gcov)
2891         add_cflags  -fprofile-arcs -ftest-coverage
2892         add_ldflags -fprofile-arcs -ftest-coverage
2893     ;;
2894     hardened)
2895         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2896         add_ldflags -Wl,-z,relro -Wl,-z,now
2897     ;;
2898     ?*)
2899         die "Unknown toolchain $toolchain"
2900     ;;
2901 esac
2902
2903 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2904 enabled cross_compile || host_cc_default=$cc
2905 set_default host_cc
2906
2907 if ! $pkg_config --version >/dev/null 2>&1; then
2908     warn "$pkg_config not found, library detection may fail."
2909     pkg_config=false
2910 fi
2911
2912 exesuf() {
2913     case $1 in
2914         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2915     esac
2916 }
2917
2918 EXESUF=$(exesuf $target_os)
2919 HOSTEXESUF=$(exesuf $host_os)
2920
2921 # set temporary file name
2922 : ${TMPDIR:=$TEMPDIR}
2923 : ${TMPDIR:=$TMP}
2924 : ${TMPDIR:=/tmp}
2925
2926 if [ -n "$tempprefix" ] ; then
2927     mktemp(){
2928         echo $tempprefix.${HOSTNAME}.${UID}
2929     }
2930 elif ! check_cmd mktemp -u XXXXXX; then
2931     # simple replacement for missing mktemp
2932     # NOT SAFE FOR GENERAL USE
2933     mktemp(){
2934         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2935     }
2936 fi
2937
2938 tmpfile(){
2939     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2940         (set -C; exec > $tmp) 2>/dev/null ||
2941         die "Unable to create temporary file in $TMPDIR."
2942     append TMPFILES $tmp
2943     eval $1=$tmp
2944 }
2945
2946 trap 'rm -f -- $TMPFILES' EXIT
2947
2948 tmpfile TMPASM .asm
2949 tmpfile TMPC   .c
2950 tmpfile TMPCPP .cpp
2951 tmpfile TMPE   $EXESUF
2952 tmpfile TMPH   .h
2953 tmpfile TMPO   .o
2954 tmpfile TMPS   .S
2955 tmpfile TMPSH  .sh
2956 tmpfile TMPV   .ver
2957
2958 unset -f mktemp
2959
2960 chmod +x $TMPE
2961
2962 # make sure we can execute files in $TMPDIR
2963 cat > $TMPSH 2>> $logfile <<EOF
2964 #! /bin/sh
2965 EOF
2966 chmod +x $TMPSH >> $logfile 2>&1
2967 if ! $TMPSH >> $logfile 2>&1; then
2968     cat <<EOF
2969 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2970 variable to another directory and make sure that it is not mounted noexec.
2971 EOF
2972     die "Sanity test failed."
2973 fi
2974
2975 ccc_flags(){
2976     for flag; do
2977         case $flag in
2978             -std=c99)           echo -c99                       ;;
2979             -mcpu=*)            echo -arch ${flag#*=}           ;;
2980             -mieee)             echo -ieee                      ;;
2981             -O*|-fast)          echo $flag                      ;;
2982             -fno-math-errno)    echo -assume nomath_errno       ;;
2983             -g)                 echo -g3                        ;;
2984             -Wall)              echo -msg_enable level2         ;;
2985             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2986             -Wl,*)              echo $flag                      ;;
2987             -f*|-W*)                                            ;;
2988             *)                  echo $flag                      ;;
2989         esac
2990    done
2991 }
2992
2993 cparser_flags(){
2994     for flag; do
2995         case $flag in
2996             -Wno-switch)             echo -Wno-switch-enum ;;
2997             -Wno-format-zero-length) ;;
2998             -Wdisabled-optimization) ;;
2999             -Wno-pointer-sign)       echo -Wno-other ;;
3000             *)                       echo $flag ;;
3001         esac
3002     done
3003 }
3004
3005 msvc_common_flags(){
3006     for flag; do
3007         case $flag in
3008             # In addition to specifying certain flags under the compiler
3009             # specific filters, they must be specified here as well or else the
3010             # generic catch all at the bottom will print the original flag.
3011             -Wall)                ;;
3012             -std=c99)             ;;
3013             # Common flags
3014             -fomit-frame-pointer) ;;
3015             -g)                   echo -Z7 ;;
3016             -fno-math-errno)      ;;
3017             -fno-common)          ;;
3018             -fno-signed-zeros)    ;;
3019             -fPIC)                ;;
3020             -mthumb)              ;;
3021             -march=*)             ;;
3022             -lz)                  echo zlib.lib ;;
3023             -lavifil32)           echo vfw32.lib ;;
3024             -lavicap32)           echo vfw32.lib user32.lib ;;
3025             -l*)                  echo ${flag#-l}.lib ;;
3026             *)                    echo $flag ;;
3027         esac
3028     done
3029 }
3030
3031 msvc_flags(){
3032     msvc_common_flags "$@"
3033     for flag; do
3034         case $flag in
3035             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3036                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3037                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3038                                        -wd4554 \
3039                                        -wd4273 ;;
3040         esac
3041     done
3042 }
3043
3044 icl_flags(){
3045     msvc_common_flags "$@"
3046     for flag; do
3047         case $flag in
3048             # Despite what Intel's documentation says -Wall, which is supported
3049             # on Windows, does enable remarks so disable them here.
3050             -Wall)                echo $flag -Qdiag-disable:remark ;;
3051             -std=c99)             echo -Qstd=c99 ;;
3052         esac
3053     done
3054 }
3055
3056 pgi_flags(){
3057     for flag; do
3058         case $flag in
3059             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3060             -fomit-frame-pointer) echo -Mnoframe ;;
3061             -g)                   echo -gopt ;;
3062             *)                    echo $flag ;;
3063         esac
3064     done
3065 }
3066
3067 suncc_flags(){
3068     for flag; do
3069         case $flag in
3070             -march=*|-mcpu=*)
3071                 case "${flag#*=}" in
3072                     native)                   echo -xtarget=native       ;;
3073                     v9|niagara)               echo -xarch=sparc          ;;
3074                     ultrasparc)               echo -xarch=sparcvis       ;;
3075                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3076                     i586|pentium)             echo -xchip=pentium        ;;
3077                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3078                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3079                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3080                     pentium4*)          echo -xtarget=pentium4           ;;
3081                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3082                     *-sse3)             echo -xarch=sse3                 ;;
3083                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3084                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3085                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3086                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3087                     bdver*)                    echo -xarch=avx           ;;
3088                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3089                     k8|opteron|athlon64|athlon-fx)
3090                                                echo -xarch=sse2a         ;;
3091                     athlon*)                   echo -xarch=pentium_proa  ;;
3092                 esac
3093                 ;;
3094             -std=c99)             echo -xc99              ;;
3095             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3096             -fPIC)                echo -KPIC -xcode=pic32 ;;
3097             -W*,*)                echo $flag              ;;
3098             -f*-*|-W*|-mimpure-text)                      ;;
3099             -shared)              echo -G                 ;;
3100             *)                    echo $flag              ;;
3101         esac
3102     done
3103 }
3104
3105 tms470_flags(){
3106     for flag; do
3107         case $flag in
3108             -march=*|-mcpu=*)
3109                 case "${flag#*=}" in
3110                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3111                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3112                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3113                     armv6*|arm11*)          echo -mv=6   ;;
3114                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3115                                             echo -mv=5e  ;;
3116                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3117                 esac
3118                 ;;
3119             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3120             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3121             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3122             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3123             -msoft-float)   echo --float_support=vfplib       ;;
3124             -O[0-3]|-mf=*)  echo $flag                        ;;
3125             -g)             echo -g -mn                       ;;
3126             -pds=*)         echo $flag                        ;;
3127             -D*|-I*)        echo $flag                        ;;
3128             --gcc|--abi=*)  echo $flag                        ;;
3129             -me)            echo $flag                        ;;
3130         esac
3131     done
3132 }
3133
3134 probe_cc(){
3135     pfx=$1
3136     _cc=$2
3137
3138     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3139     unset _ld_o _ldflags _ld_lib _ld_path
3140     unset _depflags _DEPCMD _DEPFLAGS
3141     _flags_filter=echo
3142
3143     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3144         true # no-op to avoid reading stdin in following checks
3145     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3146         _type=llvm_gcc
3147         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3148         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3149         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3150         _cflags_speed='-O3'
3151         _cflags_size='-Os'
3152     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3153         _type=gcc
3154         gcc_version=$($_cc --version | head -n1)
3155         gcc_basever=$($_cc -dumpversion)
3156         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3157         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3158         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3159         if ! $_cc -dumpversion | grep -q '^2\.'; then
3160             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3161         fi
3162         _cflags_speed='-O3'
3163         _cflags_size='-Os'
3164     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3165         _type=icc
3166         _ident=$($_cc --version | head -n1)
3167         _depflags='-MMD'
3168         _cflags_speed='-O3'
3169         _cflags_size='-Os'
3170         _cflags_noopt='-O1'
3171     elif $_cc -v 2>&1 | grep -q xlc; then
3172         _type=xlc
3173         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3174         _cflags_speed='-O5'
3175         _cflags_size='-O5 -qcompact'
3176     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3177         _type=ccc
3178         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3179         _DEPFLAGS='-M'
3180         _cflags_speed='-fast'
3181         _cflags_size='-O1'
3182         _flags_filter=ccc_flags
3183     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
3184         test -d "$sysroot" || die "No valid sysroot specified."
3185         _type=armcc
3186         _ident=$($_cc --vsn | head -n1)
3187         armcc_conf="$PWD/armcc.conf"
3188         $_cc --arm_linux_configure                 \
3189              --arm_linux_config_file="$armcc_conf" \
3190              --configure_sysroot="$sysroot"        \
3191              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3192              die "Error creating armcc configuration file."
3193         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3194         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3195         as_default="${cross_prefix}gcc"
3196         _depflags='-MMD'
3197         _cflags_speed='-O3'
3198         _cflags_size='-Os'
3199     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3200         _type=tms470
3201         _ident=$($_cc -version | head -n1 | tr -s ' ')
3202         _flags='--gcc --abi=eabi -me'
3203         _cc_e='-ppl -fe=$@'
3204         _cc_o='-fe=$@'
3205         _depflags='-ppa -ppd=$(@:.o=.d)'
3206         _cflags_speed='-O3 -mf=5'
3207         _cflags_size='-O3 -mf=2'
3208         _flags_filter=tms470_flags
3209     elif $_cc -v 2>&1 | grep -q clang; then
3210         _type=clang
3211         _ident=$($_cc --version | head -n1)
3212         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3213         _cflags_speed='-O3'
3214         _cflags_size='-Os'
3215     elif $_cc -V 2>&1 | grep -q Sun; then
3216         _type=suncc
3217         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3218         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3219         _DEPFLAGS='-xM1 -xc99'
3220         _ldflags='-std=c99'
3221         _cflags_speed='-O5'
3222         _cflags_size='-O5 -xspace'
3223         _flags_filter=suncc_flags
3224     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3225         _type=pathscale
3226         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3227         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3228         _cflags_speed='-O2'
3229         _cflags_size='-Os'
3230         _flags_filter='filter_out -Wdisabled-optimization'
3231     elif $_cc -v 2>&1 | grep -q Open64; then
3232         _type=open64
3233         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3234         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3235         _cflags_speed='-O2'
3236         _cflags_size='-Os'
3237         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3238     elif $_cc -V 2>&1 | grep -q Portland; then
3239         _type=pgi
3240         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3241         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3242         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3243         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3244         _cflags_noopt="-O"
3245         _flags_filter=pgi_flags
3246     elif $_cc 2>&1 | grep -q Microsoft; then
3247         _type=msvc
3248         _ident=$($cc 2>&1 | head -n1)
3249         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3250         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3251         _cflags_speed="-O2"
3252         _cflags_size="-O1"
3253         if $_cc 2>&1 | grep -q Linker; then
3254             _ld_o='-out:$@'
3255         else
3256             _ld_o='-Fe$@'
3257         fi
3258         _cc_o='-Fo$@'
3259         _cc_e='-P -Fi$@'
3260         _flags_filter=msvc_flags
3261         _ld_lib='lib%.a'
3262         _ld_path='-libpath:'
3263         _flags='-nologo'
3264         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3265         if [ $pfx = hostcc ]; then
3266             append _cflags -Dsnprintf=_snprintf
3267         fi
3268         disable stripping
3269     elif $_cc 2>&1 | grep -q Intel; then
3270         _type=icl
3271         _ident=$($cc 2>&1 | head -n1)
3272         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3273         # Not only is O3 broken on 13.x+ but it is slower on all previous
3274         # versions (tested) as well.
3275         _cflags_speed="-O2"
3276         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3277         if $_cc 2>&1 | grep -q Linker; then
3278             _ld_o='-out:$@'
3279         else
3280             _ld_o='-Fe$@'
3281         fi
3282         _cc_o='-Fo$@'
3283         _cc_e='-P'
3284         _flags_filter=icl_flags
3285         _ld_lib='lib%.a'
3286         _ld_path='-libpath:'
3287         # -Qdiag-error to make icl error when seeing certain unknown arguments
3288         _flags='-nologo -Qdiag-error:4044,10157'
3289         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3290         # with MSVC which enables it by default.
3291         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3292         if [ $pfx = hostcc ]; then
3293             append _cflags -Dsnprintf=_snprintf
3294         fi
3295     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3296         _type=cparser
3297         _ident=$($_cc --version | head -n1)
3298         _depflags='-MMD'
3299         _cflags_speed='-O4'
3300         _cflags_size='-O2'
3301         _flags_filter=cparser_flags
3302     fi
3303
3304     eval ${pfx}_type=\$_type
3305     eval ${pfx}_ident=\$_ident
3306 }
3307
3308 set_ccvars(){
3309     eval ${1}_C=\${_cc_c-\${${1}_C}}
3310     eval ${1}_E=\${_cc_e-\${${1}_E}}
3311     eval ${1}_O=\${_cc_o-\${${1}_O}}
3312
3313     if [ -n "$_depflags" ]; then
3314         eval ${1}_DEPFLAGS=\$_depflags
3315     else
3316         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3317         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3318         eval DEP${1}FLAGS=\$_flags
3319     fi
3320 }
3321
3322 probe_cc cc "$cc"
3323 cflags_filter=$_flags_filter
3324 cflags_speed=$_cflags_speed
3325 cflags_size=$_cflags_size
3326 cflags_noopt=$_cflags_noopt
3327 add_cflags $_flags $_cflags
3328 cc_ldflags=$_ldflags
3329 set_ccvars CC
3330
3331 probe_cc hostcc "$host_cc"
3332 host_cflags_filter=$_flags_filter
3333 add_host_cflags  $_flags $_cflags
3334 set_ccvars HOSTCC
3335
3336 test -n "$cc_type" && enable $cc_type ||
3337     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3338
3339 : ${as_default:=$cc}
3340 : ${dep_cc_default:=$cc}
3341 : ${ld_default:=$cc}
3342 : ${host_ld_default:=$host_cc}
3343 set_default ar as dep_cc ld host_ld windres
3344
3345 probe_cc as "$as"
3346 asflags_filter=$_flags_filter
3347 add_asflags $_flags $_cflags
3348 set_ccvars AS
3349
3350 probe_cc ld "$ld"
3351 ldflags_filter=$_flags_filter
3352 add_ldflags $_flags $_ldflags
3353 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3354 LD_O=${_ld_o-$LD_O}
3355 LD_LIB=${_ld_lib-$LD_LIB}
3356 LD_PATH=${_ld_path-$LD_PATH}
3357
3358 probe_cc hostld "$host_ld"
3359 host_ldflags_filter=$_flags_filter
3360 add_host_ldflags $_flags $_ldflags
3361 HOSTLD_O=${_ld_o-$HOSTLD_O}
3362
3363 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3364     probe_cc depcc "$dep_cc"
3365     CCDEP=${_DEPCMD:-$DEPCMD}
3366     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3367     DEPCCFLAGS=$_flags
3368 fi
3369
3370 if $ar 2>&1 | grep -q Microsoft; then
3371     arflags="-nologo"
3372     ar_o='-out:$@'
3373 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3374     arflags="rq"
3375     ar_o='$@'
3376 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3377     arflags='-Xany -r -c'
3378     ar_o='$@'
3379 else
3380     arflags="rc"
3381     ar_o='$@'
3382 fi
3383
3384 add_cflags $extra_cflags
3385 add_cxxflags $extra_cxxflags
3386 add_asflags $extra_cflags
3387
3388 if test -n "$sysroot"; then
3389     case "$cc_type" in
3390         gcc|llvm_gcc|clang)
3391             add_cppflags --sysroot="$sysroot"
3392             add_ldflags --sysroot="$sysroot"
3393         ;;
3394         tms470)
3395             add_cppflags -I"$sysinclude"
3396             add_ldflags  --sysroot="$sysroot"
3397         ;;
3398     esac
3399 fi
3400
3401 if test "$cpu" = host; then
3402     enabled cross_compile &&
3403         die "--cpu=host makes no sense when cross-compiling."
3404
3405     case "$cc_type" in
3406         gcc|llvm_gcc)
3407             check_native(){
3408                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3409                 sed -n "/cc1.*$1=/{
3410                             s/.*$1=\\([^ ]*\\).*/\\1/
3411                             p
3412                             q
3413                         }" $TMPE
3414             }
3415             cpu=$(check_native -march || check_native -mcpu)
3416         ;;
3417     esac
3418
3419     test "${cpu:-host}" = host &&
3420         die "--cpu=host not supported with compiler $cc"
3421 fi
3422
3423 # Deal with common $arch aliases
3424 case "$arch" in
3425     aarch64|arm64)
3426         arch="aarch64"
3427     ;;
3428     arm*|iPad*|iPhone*)
3429         arch="arm"
3430     ;;
3431     mips*|IP*)
3432         arch="mips"
3433     ;;
3434     parisc*|hppa*)
3435         arch="parisc"
3436     ;;
3437     "Power Macintosh"|ppc*|powerpc*)
3438         arch="ppc"
3439     ;;
3440     s390|s390x)
3441         arch="s390"
3442     ;;
3443     sh4|sh)
3444         arch="sh4"
3445     ;;
3446     sun4u|sparc*)
3447         arch="sparc"
3448     ;;
3449     tilegx|tile-gx)
3450         arch="tilegx"
3451     ;;
3452     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3453         arch="x86"
3454     ;;
3455 esac
3456
3457 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3458 enable $arch
3459
3460 # Add processor-specific flags
3461 if enabled aarch64; then
3462
3463     case $cpu in
3464         armv*)
3465             cpuflags="-march=$cpu"
3466         ;;
3467         *)
3468             cpuflags="-mcpu=$cpu"
3469         ;;
3470     esac
3471
3472 elif enabled alpha; then
3473
3474     cpuflags="-mcpu=$cpu"
3475
3476 elif enabled arm; then
3477
3478     check_arm_arch() {
3479         check_cpp_condition stddef.h \
3480             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3481             $cpuflags
3482     }
3483
3484     probe_arm_arch() {
3485         if   check_arm_arch 4;        then echo armv4;
3486         elif check_arm_arch 4T;       then echo armv4t;
3487         elif check_arm_arch 5;        then echo armv5;
3488         elif check_arm_arch 5E;       then echo armv5e;
3489         elif check_arm_arch 5T;       then echo armv5t;
3490         elif check_arm_arch 5TE;      then echo armv5te;
3491         elif check_arm_arch 5TEJ;     then echo armv5te;
3492         elif check_arm_arch 6;        then echo armv6;
3493         elif check_arm_arch 6J;       then echo armv6j;
3494         elif check_arm_arch 6K;       then echo armv6k;
3495         elif check_arm_arch 6Z;       then echo armv6z;
3496         elif check_arm_arch 6ZK;      then echo armv6zk;
3497         elif check_arm_arch 6T2;      then echo armv6t2;
3498         elif check_arm_arch 7;        then echo armv7;
3499         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3500         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3501         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3502         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3503         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3504         fi
3505     }
3506
3507     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3508
3509     case $cpu in
3510         armv*)
3511             cpuflags="-march=$cpu"
3512             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3513         ;;
3514         *)
3515             cpuflags="-mcpu=$cpu"
3516             case $cpu in
3517                 cortex-a*)                               subarch=armv7a  ;;
3518                 cortex-r*)                               subarch=armv7r  ;;
3519                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3520                 arm11*)                                  subarch=armv6   ;;
3521                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3522                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3523                 *)                             subarch=$(probe_arm_arch) ;;
3524             esac
3525         ;;
3526     esac
3527
3528     case "$subarch" in
3529         armv5t*)    enable fast_clz                ;;
3530         armv[6-8]*) enable fast_clz fast_unaligned ;;
3531     esac
3532
3533 elif enabled avr32; then
3534
3535     case $cpu in
3536         ap7[02]0[0-2])
3537             subarch="avr32_ap"
3538             cpuflags="-mpart=$cpu"
3539         ;;
3540         ap)
3541             subarch="avr32_ap"
3542             cpuflags="-march=$cpu"
3543         ;;
3544         uc3[ab]*)
3545             subarch="avr32_uc"
3546             cpuflags="-mcpu=$cpu"
3547         ;;
3548         uc)
3549             subarch="avr32_uc"
3550             cpuflags="-march=$cpu"
3551         ;;
3552     esac
3553
3554 elif enabled bfin; then
3555
3556     cpuflags="-mcpu=$cpu"
3557
3558 elif enabled mips; then
3559
3560     cpuflags="-march=$cpu"
3561
3562     case $cpu in
3563         24kc)
3564             disable mipsfpu
3565             disable mipsdspr1
3566             disable mipsdspr2
3567         ;;
3568         24kf*)
3569             disable mipsdspr1
3570             disable mipsdspr2
3571         ;;
3572         24kec|34kc|1004kc)
3573             disable mipsfpu
3574             disable mipsdspr2
3575         ;;
3576         24kef*|34kf*|1004kf*)
3577             disable mipsdspr2
3578         ;;
3579         74kc)
3580             disable mipsfpu
3581         ;;
3582     esac
3583
3584 elif enabled ppc; then
3585
3586     case $(tolower $cpu) in
3587         601|ppc601|powerpc601)
3588             cpuflags="-mcpu=601"
3589             disable altivec
3590         ;;
3591         603*|ppc603*|powerpc603*)
3592             cpuflags="-mcpu=603"
3593             disable altivec
3594         ;;
3595         604*|ppc604*|powerpc604*)
3596             cpuflags="-mcpu=604"
3597             disable altivec
3598         ;;
3599         g3|75*|ppc75*|powerpc75*)
3600             cpuflags="-mcpu=750"
3601             disable altivec
3602         ;;
3603         g4|745*|ppc745*|powerpc745*)
3604             cpuflags="-mcpu=7450"
3605         ;;
3606         74*|ppc74*|powerpc74*)
3607             cpuflags="-mcpu=7400"
3608         ;;
3609         g5|970|ppc970|powerpc970)
3610             cpuflags="-mcpu=970"
3611         ;;
3612         power[3-7]*)
3613             cpuflags="-mcpu=$cpu"
3614         ;;
3615         cell)
3616             cpuflags="-mcpu=cell"
3617             enable ldbrx
3618         ;;
3619         e500mc)
3620             cpuflags="-mcpu=e500mc"
3621             disable altivec
3622         ;;
3623         e500v2)
3624             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3625             disable altivec
3626         ;;
3627         e500)
3628             cpuflags="-mcpu=8540 -mhard-float"
3629             disable altivec
3630         ;;
3631     esac
3632
3633 elif enabled sparc; then
3634
3635     case $cpu in
3636         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3637             cpuflags="-mcpu=$cpu"
3638         ;;
3639         ultrasparc*|niagara[234])
3640             cpuflags="-mcpu=$cpu"
3641         ;;
3642     esac
3643
3644 elif enabled x86; then
3645
3646     case $cpu in
3647         i[345]86|pentium)
3648             cpuflags="-march=$cpu"
3649             disable mmx
3650         ;;
3651         # targets that do NOT support nopl and conditional mov (cmov)
3652         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3653             cpuflags="-march=$cpu"
3654             disable i686
3655         ;;
3656         # targets that do support nopl and conditional mov (cmov)
3657         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3658             cpuflags="-march=$cpu"
3659             enable i686
3660             enable fast_cmov
3661         ;;
3662         # targets that do support conditional mov but on which it's slow
3663         pentium4|pentium4m|prescott|nocona)
3664             cpuflags="-march=$cpu"
3665             enable i686
3666             disable fast_cmov
3667         ;;
3668     esac
3669
3670 fi
3671
3672 if [ "$cpu" != generic ]; then
3673     add_cflags  $cpuflags
3674     add_asflags $cpuflags
3675 fi
3676
3677 # compiler sanity check
3678 check_exec <<EOF
3679 int main(void){ return 0; }
3680 EOF
3681 if test "$?" != 0; then
3682     echo "$cc is unable to create an executable file."
3683     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3684         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3685         echo "Only do this if you know what cross compiling means."
3686     fi
3687     die "C compiler test failed."
3688 fi
3689
3690 add_cppflags -D_ISOC99_SOURCE
3691 add_cxxflags -D__STDC_CONSTANT_MACROS
3692 check_cflags -std=c99
3693 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3694 #include <stdlib.h>
3695 EOF
3696 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3697 #include <stdlib.h>
3698 EOF
3699
3700 add_host_cppflags -D_ISOC99_SOURCE
3701 check_host_cflags -std=c99
3702 check_host_cflags -Wall
3703 check_host_cflags -O3
3704
3705 check_64bit(){
3706     arch32=$1
3707     arch64=$2
3708     expr=$3
3709     check_code cc "" "int test[2*($expr) - 1]" &&
3710         subarch=$arch64 || subarch=$arch32
3711 }
3712
3713 case "$arch" in
3714     aarch64|alpha|ia64)
3715         spic=$shared
3716     ;;
3717     mips)
3718         check_64bit mips mips64 '_MIPS_SIM > 1'
3719         spic=$shared
3720     ;;
3721     parisc)
3722         check_64bit parisc parisc64 'sizeof(void *) > 4'
3723         spic=$shared
3724     ;;
3725     ppc)
3726         check_64bit ppc ppc64 'sizeof(void *) > 4'
3727         spic=$shared
3728     ;;
3729     s390)
3730         check_64bit s390 s390x 'sizeof(void *) > 4'
3731         spic=$shared
3732     ;;
3733     sparc)
3734         check_64bit sparc sparc64 'sizeof(void *) > 4'
3735         spic=$shared
3736     ;;
3737     x86)
3738         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3739         if test "$subarch" = "x86_64"; then
3740             spic=$shared
3741         fi
3742     ;;
3743     ppc)
3744         check_cc <<EOF && subarch="ppc64"
3745         int test[(int)sizeof(char*) - 7];
3746 EOF
3747     ;;
3748 esac
3749
3750 enable $subarch
3751 enabled spic && enable_weak pic
3752
3753 # OS specific
3754 case $target_os in
3755     aix)
3756         SHFLAGS=-shared
3757         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3758         enabled shared && add_ldflags -Wl,-brtl
3759         ;;
3760     haiku)
3761         prefix_default="/boot/common"
3762         network_extralibs="-lnetwork"
3763         host_libs=
3764         ;;
3765     sunos)
3766         SHFLAGS='-shared -Wl,-h,$$(@F)'
3767         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3768         network_extralibs="-lsocket -lnsl"
3769         # When using suncc to build, the Solaris linker will mark
3770         # an executable with each instruction set encountered by
3771         # the Solaris assembler.  As our libraries contain their own
3772         # guards for processor-specific code, instead suppress
3773         # generation of the HWCAPS ELF section on Solaris x86 only.
3774         enabled_all suncc x86 &&
3775             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3776             add_ldflags -Wl,-M,mapfile
3777         nm_default='nm -P -g'
3778         ;;
3779     netbsd)
3780         disable symver
3781         oss_indev_extralibs="-lossaudio"
3782         oss_outdev_extralibs="-lossaudio"
3783         enabled gcc || check_ldflags -Wl,-zmuldefs
3784         ;;
3785     openbsd|bitrig)
3786         disable symver
3787         SHFLAGS='-shared'
3788         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3789         SLIB_INSTALL_LINKS=
3790         oss_indev_extralibs="-lossaudio"
3791         oss_outdev_extralibs="-lossaudio"
3792         ;;
3793     dragonfly)
3794         disable symver
3795         ;;
3796     freebsd)
3797         ;;
3798     bsd/os)
3799         add_extralibs -lpoll -lgnugetopt
3800         strip="strip -d"
3801         ;;
3802     darwin)
3803         gas="gas-preprocessor.pl $cc"
3804         enabled ppc && add_asflags -force_cpusubtype_ALL
3805         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3806         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3807         strip="${strip} -x"
3808         add_ldflags -Wl,-dynamic,-search_paths_first
3809         SLIBSUF=".dylib"
3810         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3811         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3812         objformat="macho"
3813         enabled x86_64 && objformat="macho64"
3814         enabled_any pic shared ||
3815             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3816         ;;
3817     mingw32*)
3818         if test $target_os = "mingw32ce"; then
3819             disable network
3820         else
3821             target_os=mingw32
3822         fi
3823         LIBTARGET=i386
3824         if enabled x86_64; then
3825             LIBTARGET="i386:x86-64"
3826         elif enabled arm; then
3827             LIBTARGET=arm-wince
3828         fi
3829         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3830         check_ldflags -Wl,--nxcompat
3831         check_ldflags -Wl,--dynamicbase
3832         shlibdir_default="$bindir_default"
3833         SLIBPREF=""
3834         SLIBSUF=".dll"
3835         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3836         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3837         dlltool="${cross_prefix}dlltool"
3838         if check_cmd lib.exe -list; then
3839             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3840             if enabled x86_64; then
3841                 LIBTARGET=x64
3842             fi
3843         elif check_cmd $dlltool --version; then
3844             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3845         fi
3846         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3847         SLIB_INSTALL_LINKS=
3848         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3849         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3850         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3851         objformat="win32"
3852         ranlib=:
3853         enable dos_paths
3854         ;;
3855     win32|win64)
3856         disable symver
3857         if enabled shared; then
3858             # Link to the import library instead of the normal static library
3859             # for shared libs.
3860             LD_LIB='%.lib'
3861             # Cannot build both shared and static libs with MSVC or icl.
3862             disable static
3863         fi
3864         shlibdir_default="$bindir_default"
3865         SLIBPREF=""
3866         SLIBSUF=".dll"
3867         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3868         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3869         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3870         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3871         SLIB_INSTALL_LINKS=
3872         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3873         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3874         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3875         objformat="win32"
3876         ranlib=:
3877         enable dos_paths
3878         ;;
3879     cygwin*)
3880         target_os=cygwin
3881         shlibdir_default="$bindir_default"
3882         SLIBPREF="cyg"
3883         SLIBSUF=".dll"
3884         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3885         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3886         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3887         SLIB_INSTALL_LINKS=
3888         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3889         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3890         objformat="win32"
3891         enable dos_paths
3892         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3893         ;;
3894     *-dos|freedos|opendos)
3895         network_extralibs="-lsocket"
3896         objformat="coff"
3897         enable dos_paths
3898         add_cppflags -U__STRICT_ANSI__
3899         ;;
3900     linux)
3901         enable dv1394
3902         ;;
3903     irix*)
3904         target_os=irix
3905         ranlib="echo ignoring ranlib"
3906         ;;
3907     os/2*)
3908         strip="lxlite -CS"
3909         ln_s="cp -f"
3910         objformat="aout"
3911         add_cppflags -D_GNU_SOURCE
3912         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3913         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3914         LIBSUF="_s.a"
3915         SLIBPREF=""
3916         SLIBSUF=".dll"
3917         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3918         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3919         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3920             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3921             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3922             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3923             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3924             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3925         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3926             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3927         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3928         enable dos_paths
3929         enable_weak os2threads
3930         ;;
3931     gnu/kfreebsd)
3932         add_cppflags -D_BSD_SOURCE
3933         ;;
3934     gnu)
3935         ;;
3936     qnx)
3937         add_cppflags -D_QNX_SOURCE
3938         network_extralibs="-lsocket"
3939         ;;
3940     symbian)
3941         SLIBSUF=".dll"
3942         enable dos_paths
3943         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3944         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3945         add_ldflags -Wl,--target1-abs,--no-undefined \
3946                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3947                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3948         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3949                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3950                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3951         ;;
3952     osf1)
3953         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3954         ;;
3955     minix)
3956         ;;
3957     plan9)
3958         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3959                      -D_REENTRANT_SOURCE        \
3960                      -D_RESEARCH_SOURCE         \
3961                      -DFD_SETSIZE=96            \
3962                      -DHAVE_SOCK_OPTS
3963         add_compat strtod.o strtod=avpriv_strtod
3964         network_extralibs='-lbsd'
3965         exeobjs=compat/plan9/main.o
3966         disable ffserver
3967         cp_f='cp'
3968         ;;
3969     none)
3970         ;;
3971     *)
3972         die "Unknown OS '$target_os'."
3973         ;;
3974 esac
3975
3976 # determine libc flavour
3977
3978 probe_libc(){
3979     pfx=$1
3980     pfx_no_=${pfx%_}
3981     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3982     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3983         eval ${pfx}libc_type=uclibc
3984         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3985     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3986         eval ${pfx}libc_type=glibc
3987         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3988     # MinGW headers can be installed on Cygwin, so check for newlib first.
3989     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3990         eval ${pfx}libc_type=newlib
3991         add_${pfx}cppflags -U__STRICT_ANSI__
3992     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3993     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3994         eval ${pfx}libc_type=mingw64
3995         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
3996             add_compat msvcrt/snprintf.o
3997             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3998         fi
3999         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4000         eval test \$${pfx_no_}cc_type = "gcc" &&
4001             add_${pfx}cppflags -D__printf__=__gnu_printf__
4002     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4003          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4004         eval ${pfx}libc_type=mingw32
4005         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4006             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4007             die "ERROR: MinGW32 runtime version must be >= 3.15."
4008         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4009         eval test \$${pfx_no_}cc_type = "gcc" &&
4010             add_${pfx}cppflags -D__printf__=__gnu_printf__
4011     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4012         eval ${pfx}libc_type=msvcrt
4013         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4014         # 0x601 by default unless something else is set by the user.
4015         # This can easily lead to us detecting functions only present
4016         # in such new versions and producing binaries requiring windows 7.0.
4017         # Therefore explicitly set the default to XP unless the user has
4018         # set something else on the command line.
4019         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4020             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4021     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4022         eval ${pfx}libc_type=klibc
4023     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4024         eval ${pfx}libc_type=bionic
4025     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4026         eval ${pfx}libc_type=solaris
4027         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4028     fi
4029 }
4030
4031 probe_libc
4032 test -n "$libc_type" && enable libc_$libc_type
4033 probe_libc host_
4034 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4035
4036 case $libc_type in
4037     bionic)
4038         add_compat strtod.o strtod=avpriv_strtod
4039         ;;
4040     msvcrt)
4041         add_compat strtod.o strtod=avpriv_strtod
4042         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4043                                      _snprintf=avpriv_snprintf  \
4044                                      vsnprintf=avpriv_vsnprintf
4045         ;;
4046 esac
4047
4048 # hacks for compiler/libc/os combinations
4049
4050 if enabled_all tms470 libc_glibc; then
4051     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4052     add_cppflags -D__USER_LABEL_PREFIX__=
4053     add_cppflags -D__builtin_memset=memset
4054     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4055     add_cflags   -pds=48    # incompatible redefinition of macro
4056 fi
4057
4058 if enabled_all ccc libc_glibc; then
4059     add_ldflags -Wl,-z,now  # calls to libots crash without this
4060 fi
4061
4062 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4063     add_cppflags '-I\$(SRC_PATH)/compat/float'
4064
4065 esc(){
4066     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4067 }
4068
4069 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4070
4071 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4072
4073 set_default $PATHS_LIST
4074 set_default nm
4075
4076 # we need to build at least one lib type
4077 if ! enabled_any static shared; then
4078     cat <<EOF
4079 At least one library type must be built.
4080 Specify --enable-static to build the static libraries or --enable-shared to
4081 build the shared libraries as well. To only build the shared libraries specify
4082 --disable-static in addition to --enable-shared.
4083 EOF
4084     exit 1;
4085 fi
4086
4087 # backward compatibility layer for incompatible_libav/fork_abi
4088 enabled incompatible_fork_abi  && enable incompatible_libav_abi
4089 enabled incompatible_libav_abi && enable incompatible_fork_abi
4090
4091 die_license_disabled() {
4092     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4093 }
4094
4095 die_license_disabled_gpl() {
4096     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4097 }
4098
4099 die_license_disabled gpl frei0r
4100 die_license_disabled gpl libcdio
4101 die_license_disabled gpl libutvideo
4102 die_license_disabled gpl libvidstab
4103 die_license_disabled gpl libx264
4104 die_license_disabled gpl libx265
4105 die_license_disabled gpl libxavs
4106 die_license_disabled gpl libxvid
4107 die_license_disabled gpl libzvbi
4108 die_license_disabled gpl x11grab
4109
4110 die_license_disabled nonfree libaacplus
4111 die_license_disabled nonfree libfaac
4112 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4113 enabled gpl && die_license_disabled_gpl nonfree openssl
4114
4115 die_license_disabled version3 libopencore_amrnb
4116 die_license_disabled version3 libopencore_amrwb
4117 die_license_disabled version3 libvo_aacenc
4118 die_license_disabled version3 libvo_amrwbenc
4119
4120 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4121
4122 disabled optimizations || check_cflags -fomit-frame-pointer
4123
4124 enable_weak_pic() {
4125     disabled pic && return
4126     enable pic
4127     add_cppflags -DPIC
4128     case "$target_os" in
4129     mingw*|cygwin*)
4130         ;;
4131     *)
4132         add_cflags -fPIC
4133         ;;
4134     esac
4135     add_asflags  -fPIC
4136 }
4137
4138 enabled pic && enable_weak_pic
4139
4140 check_cc <<EOF || die "Symbol mangling check failed."
4141 int ff_extern;
4142 EOF
4143 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4144 extern_prefix=${sym%%ff_extern*}
4145
4146 check_cc <<EOF && enable_weak inline_asm
4147 void foo(void) { __asm__ volatile ("" ::); }
4148 EOF
4149
4150 _restrict=
4151 for restrict_keyword in restrict __restrict__ __restrict; do
4152     check_cc <<EOF && _restrict=$restrict_keyword && break
4153 void foo(char * $restrict_keyword p);
4154 EOF
4155 done
4156
4157 check_cc <<EOF && enable pragma_deprecated
4158 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4159 EOF
4160
4161 check_cc <<EOF && enable attribute_packed
4162 struct { int x; } __attribute__((packed)) x;
4163 EOF
4164
4165 check_cc <<EOF && enable attribute_may_alias
4166 union { int x; } __attribute__((may_alias)) x;
4167 EOF
4168
4169 check_cc <<EOF || die "endian test failed"
4170 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4171 EOF
4172 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4173
4174 check_inline_asm inline_asm_labels '"1:\n"'
4175
4176 if enabled aarch64; then
4177     # internal assembler in clang 3.3 does not support this instruction
4178     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4179     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4180
4181     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4182
4183 elif enabled alpha; then
4184
4185     check_cflags -mieee
4186
4187 elif enabled arm; then
4188
4189     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4190 float func(float a, float b){ return a+b; }
4191 EOF
4192
4193     enabled thumb && check_cflags -mthumb || check_cflags -marm
4194     nogas=die
4195
4196     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4197         enable vfp_args
4198     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4199         case "${cross_prefix:-$cc}" in
4200             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4201             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4202 __asm__ (".eabi_attribute 28, 1");
4203 int main(void) { return 0; }
4204 EOF
4205         esac
4206         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4207     fi
4208
4209     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4210     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4211     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4212     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4213     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4214     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4215
4216     [ $target_os = linux ] ||
4217         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4218             $ARCH_EXT_LIST_ARM
4219
4220     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4221
4222     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4223
4224 elif enabled mips; then
4225
4226     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4227     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4228      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4229     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4230      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4231     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4232      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4233     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4234      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4235
4236 elif enabled parisc; then
4237
4238     if enabled gcc; then
4239         case $($cc -dumpversion) in
4240             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4241         esac
4242     fi
4243
4244 elif enabled ppc; then
4245
4246     enable local_aligned_8 local_aligned_16
4247
4248     [ $cpu != e500 -a $cpu != e500v2 ] &&
4249      check_inline_asm dcbzl    '"dcbzl 0, %0" :: "r"(0)'
4250     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4251     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4252     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4253
4254     # AltiVec flags: The FSF version of GCC differs from the Apple version
4255     if enabled altivec; then
4256         if ! enabled_any pic ppc64; then
4257             nogas=warn
4258         fi
4259         check_cflags -maltivec -mabi=altivec &&
4260         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4261         check_cflags -faltivec
4262
4263         # check if our compiler supports Motorola AltiVec C API
4264         check_cc <<EOF || disable altivec
4265 $inc_altivec_h
4266 int main(void) {
4267     vector signed int v1 = (vector signed int) { 0 };
4268     vector signed int v2 = (vector signed int) { 1 };
4269     v1 = vec_add(v1, v2);
4270     return 0;
4271 }
4272 EOF
4273
4274         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4275     fi
4276
4277 elif enabled x86; then
4278
4279     check_builtin rdtsc    intrin.h   "__rdtsc()"
4280     check_builtin mm_empty mmintrin.h "_mm_empty()"
4281
4282     enable local_aligned_8 local_aligned_16
4283
4284     # check whether EBP is available on x86
4285     # As 'i' is stored on the stack, this program will crash
4286     # if the base pointer is used to access it because the
4287     # base pointer is cleared in the inline assembly code.
4288     check_exec_crash <<EOF && enable ebp_available
4289 volatile int i=0;
4290 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4291 return i;
4292 EOF
4293
4294     # check whether EBX is available on x86
4295     check_inline_asm ebx_available '""::"b"(0)' &&
4296         check_inline_asm ebx_available '"":::"%ebx"'
4297
4298     # check whether xmm clobbers are supported
4299     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4300
4301     # check whether binutils is new enough to compile SSSE3/MMXEXT
4302     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4303     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4304
4305     if ! disabled_any asm mmx yasm; then
4306         if check_cmd $yasmexe --version; then
4307             enabled x86_64 && yasm_extra="-m amd64"
4308             yasm_debug="-g dwarf2"
4309         elif check_cmd nasm -v; then
4310             yasmexe=nasm
4311             yasm_debug="-g -F dwarf"
4312             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4313         fi
4314
4315         YASMFLAGS="-f $objformat $yasm_extra"
4316         enabled pic               && append YASMFLAGS "-DPIC"
4317         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4318         case "$objformat" in
4319             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4320         esac
4321
4322         check_yasm "movbe ecx, [5]" && enable yasm ||
4323             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4324         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4325         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4326         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4327         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4328         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4329         check_yasm "CPU amdnop" || disable cpunop
4330     fi
4331
4332     case "$cpu" in
4333         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4334             disable fast_clz
4335         ;;
4336     esac
4337
4338 fi
4339
4340 if enabled asm; then
4341     as=${gas:=$as}
4342     check_as <<EOF && enable gnu_as || \
4343         $nogas "GNU assembler not found, install gas-preprocessor"
4344 .macro m n
4345 \n: .int 0
4346 .endm
4347 m x
4348 EOF
4349 fi
4350
4351 check_ldflags -Wl,--as-needed
4352
4353 if check_func dlopen; then
4354     ldl=
4355 elif check_func dlopen -ldl; then
4356     ldl=-ldl
4357 fi
4358
4359 if ! disabled network; then
4360     check_func getaddrinfo $network_extralibs
4361     check_func getservbyport $network_extralibs
4362     check_func inet_aton $network_extralibs
4363
4364     check_type netdb.h "struct addrinfo"
4365     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4366     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4367     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4368     check_type poll.h "struct pollfd"
4369     check_type netinet/sctp.h "struct sctp_event_subscribe"
4370     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4371     check_type netinet/in.h "struct sockaddr_in6"
4372     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4373     check_type "sys/types.h sys/socket.h" socklen_t
4374
4375     # Prefer arpa/inet.h over winsock2
4376     if check_header arpa/inet.h ; then
4377         check_func closesocket
4378     elif check_header winsock2.h ; then
4379         check_func_headers winsock2.h closesocket -lws2 &&
4380             network_extralibs="-lws2" ||
4381         { check_func_headers winsock2.h closesocket -lws2_32 &&
4382             network_extralibs="-lws2_32"; } || disable winsock2_h network
4383         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4384
4385         check_type ws2tcpip.h socklen_t
4386         check_type ws2tcpip.h "struct addrinfo"
4387         check_type ws2tcpip.h "struct group_source_req"
4388         check_type ws2tcpip.h "struct ip_mreq_source"
4389         check_type ws2tcpip.h "struct ipv6_mreq"
4390         check_type winsock2.h "struct pollfd"
4391         check_struct winsock2.h "struct sockaddr" sa_len
4392         check_type ws2tcpip.h "struct sockaddr_in6"
4393         check_type ws2tcpip.h "struct sockaddr_storage"
4394     else
4395         disable network
4396     fi
4397 fi
4398
4399 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4400 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4401 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4402 check_builtin sarestart signal.h "SA_RESTART"
4403 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4404
4405 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4406 check_func  ${malloc_prefix}memalign            && enable memalign
4407 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4408
4409 check_func  access
4410 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4411 check_func  fcntl
4412 check_func  fork
4413 check_func  gethrtime
4414 check_func  getopt
4415 check_func  getrusage
4416 check_func  gettimeofday
4417 check_func  isatty
4418 check_func  localtime_r
4419 check_func  mach_absolute_time
4420 check_func  mkstemp
4421 check_func  mmap
4422 check_func  mprotect
4423 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4424 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4425 check_func  sched_getaffinity
4426 check_func  setrlimit
4427 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4428 check_func  strerror_r
4429 check_func  sysconf
4430 check_func  sysctl
4431 check_func  usleep
4432
4433 check_func_headers conio.h kbhit
4434 check_func_headers io.h setmode
4435 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4436 check_func_headers stdlib.h getenv
4437
4438 check_func_headers windows.h GetProcessAffinityMask
4439 check_func_headers windows.h GetProcessTimes
4440 check_func_headers windows.h GetSystemTimeAsFileTime
4441 check_func_headers windows.h MapViewOfFile
4442 check_func_headers windows.h PeekNamedPipe
4443 check_func_headers windows.h SetConsoleTextAttribute
4444 check_func_headers windows.h Sleep
4445 check_func_headers windows.h VirtualAlloc
4446 check_func_headers glob.h glob
4447 enabled xlib &&
4448     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4449
4450 check_header cl/cl.h
4451 check_header direct.h
4452 check_header dlfcn.h
4453 check_header dxva.h
4454 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4455 check_header io.h
4456 check_header libcrystalhd/libcrystalhd_if.h
4457 check_header mach/mach_time.h
4458 check_header malloc.h
4459 check_header poll.h
4460 check_header sys/mman.h
4461 check_header sys/param.h
4462 check_header sys/resource.h
4463 check_header sys/select.h
4464 check_header sys/time.h
4465 check_header sys/un.h
4466 check_header termios.h
4467 check_header unistd.h
4468 check_header vdpau/vdpau.h
4469 check_header vdpau/vdpau_x11.h
4470 check_header VideoDecodeAcceleration/VDADecoder.h
4471 check_header windows.h
4472 check_header X11/extensions/XvMClib.h
4473 check_header asm/types.h
4474
4475 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4476 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4477 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4478
4479 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4480
4481 if ! disabled w32threads && ! enabled pthreads; then
4482     check_func_headers "windows.h process.h" _beginthreadex &&
4483         enable w32threads || disable w32threads
4484 fi
4485
4486 # check for some common methods of building with pthread support
4487 # do this before the optional library checks as some of them require pthreads
4488 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4489     enable pthreads
4490     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4491         add_cflags -pthread
4492         add_extralibs -pthread
4493     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4494         add_cflags -pthreads
4495         add_extralibs -pthreads
4496     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4497         add_extralibs -lpthreadGC2
4498     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4499         :
4500     elif ! check_func pthread_join && ! check_func pthread_create; then
4501         disable pthreads
4502     fi
4503     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4504 fi
4505
4506
4507 if enabled pthreads; then
4508   check_func pthread_cancel
4509 fi
4510
4511 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4512 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4513
4514 check_lib math.h sin -lm && LIBM="-lm"
4515 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4516
4517 atan2f_args=2
4518 ldexpf_args=2
4519 powf_args=2
4520
4521 for func in $MATH_FUNCS; do
4522     eval check_mathfunc $func \${${func}_args:-1}
4523 done
4524
4525 # these are off by default, so fail if requested and not available
4526 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4527                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4528                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4529 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4530 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4531 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4532 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4533 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4534 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4535 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4536 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4537 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4538 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4539                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4540                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4541 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4542 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4543 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4544 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"
4545 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4546 enabled libfreetype       && require_libfreetype
4547 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4548 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4549                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4550                                done || die "ERROR: libgsm not found"; }
4551 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4552 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4553 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4554 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4555 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4556 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4557 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4558 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4559                                check_lib openjpeg.h opj_version -lopenjpeg ||
4560                                die "ERROR: libopenjpeg not found"; }
4561 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4562 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4563 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4564 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4565 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4566 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4567 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4568 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4569 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4570 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4571     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4572     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4573 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4574 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4575                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4576                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4577 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4578 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4579 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4580 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4581 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4582 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4583 enabled libvpx            && {
4584     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4585                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4586     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 ||
4587                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4588     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4589     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; } }
4590 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4591 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4592 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4593                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4594                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4595 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4596                              { check_cpp_condition x265.h "X265_BUILD >= 9" ||
4597                                die "ERROR: libx265 version must be >= 9."; }
4598 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4599 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4600 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4601 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4602 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4603                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4604                                die "ERROR: openal not found"; } &&
4605                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4606                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4607 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4608                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4609                                die "ERROR: opencl not found"; } &&
4610                              { ! enabled_any w32threads os2threads ||
4611                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4612                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4613                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4614                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4615 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4616                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4617                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4618                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4619                                die "ERROR: opengl not found."
4620                              }
4621 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4622                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4623                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4624                                die "ERROR: openssl not found"; }
4625
4626 if enabled gnutls; then
4627     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4628     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4629 fi
4630
4631 # libdc1394 check
4632 if enabled libdc1394; then
4633     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4634         enable libdc1394_2; } ||
4635     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4636         enable libdc1394_1; } ||
4637     die "ERROR: No version of libdc1394 found "
4638 fi
4639
4640 SDL_CONFIG="${cross_prefix}sdl-config"
4641 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4642     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4643     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4644     enable sdl
4645 else
4646   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4647     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4648     sdl_libs=$("${SDL_CONFIG}" --libs)
4649     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4650     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4651     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4652     enable sdl
4653   fi
4654 fi
4655 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4656
4657 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4658 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4659 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4660 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4661 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4662
4663 check_header linux/fb.h
4664 check_header linux/videodev.h
4665 check_header linux/videodev2.h
4666 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4667
4668 check_header sys/videoio.h
4669
4670 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4671 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4672 # w32api 3.12 had it defined wrong
4673 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4674
4675 check_type "dshow.h" IBaseFilter
4676
4677 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4678 { check_header dev/bktr/ioctl_meteor.h &&
4679   check_header dev/bktr/ioctl_bt848.h; } ||
4680 { check_header machine/ioctl_meteor.h &&
4681   check_header machine/ioctl_bt848.h; } ||
4682 { check_header dev/video/meteor/ioctl_meteor.h &&
4683   check_header dev/video/bktr/ioctl_bt848.h; } ||
4684 check_header dev/ic/bt8xx.h
4685
4686 check_header sndio.h
4687 if check_struct sys/soundcard.h audio_buf_info bytes; then
4688     enable_safe sys/soundcard.h
4689 else
4690     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4691     #include <sys/soundcard.h>
4692     audio_buf_info abc;
4693 EOF
4694 fi
4695 check_header soundcard.h
4696
4697 enabled_any alsa_indev alsa_outdev &&
4698     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4699
4700 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4701     check_func jack_port_get_latency_range -ljack
4702
4703 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4704
4705 if enabled libcdio; then
4706     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4707     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4708     die "ERROR: libcdio-paranoia not found"
4709 fi
4710
4711 enabled xlib &&
4712     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4713
4714 enabled x11grab                                           &&
4715 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4716 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4717 { enabled xlib || die "ERROR: Xlib not found"; }
4718
4719 enabled vaapi &&
4720     check_lib va/va.h vaInitialize -lva ||
4721     disable vaapi
4722
4723 enabled vdpau &&
4724     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4725     disable vdpau
4726
4727 enabled vdpau && enabled xlib &&
4728     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4729     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4730     enable vdpau_x11
4731
4732 # Funny iconv installations are not unusual, so check it after all flags have been set
4733 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4734
4735 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4736
4737 # add some useful compiler flags if supported
4738 check_cflags -Wdeclaration-after-statement
4739 check_cflags -Wall
4740 check_cflags -Wdisabled-optimization
4741 check_cflags -Wpointer-arith
4742 check_cflags -Wredundant-decls
4743 check_cflags -Wwrite-strings
4744 check_cflags -Wtype-limits
4745 check_cflags -Wundef
4746 check_cflags -Wmissing-prototypes
4747 check_cflags -Wno-pointer-to-int-cast
4748 check_cflags -Wstrict-prototypes
4749 enabled extra_warnings && check_cflags -Winline
4750
4751 check_disable_warning(){
4752     warning_flag=-W${1#-Wno-}
4753     test_cflags $warning_flag && add_cflags $1
4754 }
4755
4756 check_disable_warning -Wno-parentheses
4757 check_disable_warning -Wno-switch
4758 check_disable_warning -Wno-format-zero-length
4759 check_disable_warning -Wno-pointer-sign
4760
4761 # add some linker flags
4762 check_ldflags -Wl,--warn-common
4763 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4764 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4765 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4766
4767 # add some strip flags
4768 # -wN '..@*' is more selective than -x, but not available everywhere.
4769 check_stripflags -wN \'..@*\' || check_stripflags -x
4770
4771 enabled neon_clobber_test &&
4772     check_ldflags -Wl,--wrap,avcodec_open2              \
4773                   -Wl,--wrap,avcodec_decode_audio4      \
4774                   -Wl,--wrap,avcodec_decode_video2      \
4775                   -Wl,--wrap,avcodec_decode_subtitle2   \
4776                   -Wl,--wrap,avcodec_encode_audio2      \
4777                   -Wl,--wrap,avcodec_encode_video2      \
4778                   -Wl,--wrap,avcodec_encode_subtitle    \
4779                   -Wl,--wrap,swr_convert                \
4780                   -Wl,--wrap,avresample_convert ||
4781     disable neon_clobber_test
4782
4783 enabled xmm_clobber_test &&
4784     check_ldflags -Wl,--wrap,avcodec_open2              \
4785                   -Wl,--wrap,avcodec_decode_audio4      \
4786                   -Wl,--wrap,avcodec_decode_video2      \
4787                   -Wl,--wrap,avcodec_decode_subtitle2   \
4788                   -Wl,--wrap,avcodec_encode_audio2      \
4789                   -Wl,--wrap,avcodec_encode_video       \
4790                   -Wl,--wrap,avcodec_encode_video2      \
4791                   -Wl,--wrap,avcodec_encode_subtitle    \
4792                   -Wl,--wrap,swr_convert                \
4793                   -Wl,--wrap,avresample_convert         \
4794                   -Wl,--wrap,sws_scale ||
4795     disable xmm_clobber_test
4796
4797 echo "X{};" > $TMPV
4798 if test_ldflags -Wl,--version-script,$TMPV; then
4799     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4800     check_cc <<EOF && enable symver_asm_label
4801 void ff_foo(void) __asm__ ("av_foo@VERSION");
4802 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4803 EOF
4804     check_cc <<EOF && enable symver_gnu_asm
4805 __asm__(".symver ff_foo,av_foo@VERSION");
4806 void ff_foo(void) {}
4807 EOF
4808 fi
4809
4810 if [ -z "$optflags" ]; then
4811     if enabled small; then
4812         optflags=$cflags_size
4813     elif enabled optimizations; then
4814         optflags=$cflags_speed
4815     else
4816         optflags=$cflags_noopt
4817     fi
4818 fi
4819
4820 check_optflags(){
4821     check_cflags "$@"
4822     enabled lto && check_ldflags "$@"
4823 }
4824
4825
4826 if enabled lto; then
4827     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4828     check_cflags  -flto
4829     check_ldflags -flto $cpuflags
4830 fi
4831
4832 check_optflags $optflags
4833 check_optflags -fno-math-errno
4834 check_optflags -fno-signed-zeros
4835
4836 enabled ftrapv && check_cflags -ftrapv
4837
4838 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4839 int x;
4840 EOF
4841
4842
4843 if enabled icc; then
4844     # Just warnings, no remarks
4845     check_cflags -w1
4846     # -wd: Disable following warnings
4847     # 144, 167, 556: -Wno-pointer-sign
4848     # 188: enumerated type mixed with another type
4849     # 1292: attribute "foo" ignored
4850     # 1419: external declaration in primary source file
4851     # 10006: ignoring unknown option -fno-signed-zeros
4852     # 10148: ignoring unknown option -Wno-parentheses
4853     # 10156: ignoring option '-W'; no argument required
4854     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4855     # 11030: Warning unknown option --as-needed
4856     # 10156: ignoring option '-export'; no argument required
4857     check_ldflags -wd10156,11030
4858     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4859     enable ebp_available
4860     if enabled x86_32; then
4861         icc_version=$($cc -dumpversion)
4862         test ${icc_version%%.*} -ge 11 &&
4863             check_cflags -falign-stack=maintain-16-byte ||
4864             disable aligned_stack
4865     fi
4866 elif enabled ccc; then
4867     # disable some annoying warnings
4868     add_cflags -msg_disable bitnotint
4869     add_cflags -msg_disable mixfuncvoid
4870     add_cflags -msg_disable nonstandcast
4871     add_cflags -msg_disable unsupieee
4872 elif enabled gcc; then
4873     check_optflags -fno-tree-vectorize
4874     check_cflags -Werror=implicit-function-declaration
4875     check_cflags -Werror=missing-prototypes
4876     check_cflags -Werror=return-type
4877     check_cflags -Werror=vla
4878     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4879 elif enabled llvm_gcc; then
4880     check_cflags -mllvm -stack-alignment=16
4881 elif enabled clang; then
4882     check_cflags -mllvm -stack-alignment=16
4883     check_cflags -Qunused-arguments
4884     check_cflags -Werror=implicit-function-declaration
4885     check_cflags -Werror=missing-prototypes
4886     check_cflags -Werror=return-type
4887 elif enabled cparser; then
4888     add_cflags -Wno-missing-variable-declarations
4889     add_cflags -Wno-empty-statement
4890 elif enabled armcc; then
4891     # 2523: use of inline assembler is deprecated
4892     add_cflags -W${armcc_opt},--diag_suppress=2523
4893     add_cflags -W${armcc_opt},--diag_suppress=1207
4894     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4895     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4896     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4897     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4898 elif enabled tms470; then
4899     add_cflags -pds=824 -pds=837
4900     disable inline_asm
4901 elif enabled pathscale; then
4902     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4903 elif enabled_any msvc icl; then
4904     enabled x86_32 && disable aligned_stack
4905     enabled_all x86_32 debug && add_cflags -Oy-
4906     enabled debug && add_ldflags -debug
4907     enable pragma_deprecated
4908     if enabled icl; then
4909         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4910         # (correctly) on icl 13.x.
4911         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4912             add_cflags -Qansi-alias
4913         # icl will pass the inline asm tests but inline asm is currently
4914         # not supported (build will fail)
4915         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4916         disable inline_asm
4917     fi
4918 fi
4919
4920 case $as_type in
4921     clang)
4922         add_asflags -Qunused-arguments
4923     ;;
4924 esac
4925
4926 case $ld_type in
4927     clang)
4928         check_ldflags -Qunused-arguments
4929     ;;
4930 esac
4931
4932 case $target_os in
4933     osf1)
4934         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4935     ;;
4936     plan9)
4937         add_cppflags -Dmain=plan9_main
4938     ;;
4939 esac
4940
4941 enable frame_thread_encoder
4942
4943 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4944
4945 check_deps $CONFIG_LIST       \
4946            $CONFIG_EXTRA      \
4947            $HAVE_LIST         \
4948            $ALL_COMPONENTS    \
4949
4950 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"
4951
4952
4953 if test $target_os = "haiku"; then
4954     disable memalign
4955     disable posix_memalign
4956 fi
4957
4958 ! enabled_any memalign posix_memalign aligned_malloc &&
4959     enabled_any $need_memalign && enable memalign_hack
4960
4961 # add_dep lib dep
4962 # -> enable ${lib}_deps_${dep}
4963 # -> add $dep to ${lib}_deps only once
4964 add_dep() {
4965     lib=$1
4966     dep=$2
4967     enabled "${lib}_deps_${dep}" && return 0
4968     enable  "${lib}_deps_${dep}"
4969     prepend "${lib}_deps" $dep
4970 }
4971
4972 # merge deps lib components
4973 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4974 merge_deps() {
4975     lib=$1
4976     shift
4977     for comp in $*; do
4978         enabled $comp || continue
4979         eval "dep=\"\$${comp}_deps\""
4980         for d in $dep; do
4981             add_dep $lib $d
4982         done
4983     done
4984 }
4985
4986 merge_deps libavfilter $FILTER_LIST
4987
4988 for thread in $THREADS_LIST; do
4989     if enabled $thread; then
4990         test -n "$thread_type" &&
4991             die "ERROR: Only one thread type must be selected." ||
4992             thread_type="$thread"
4993     fi
4994 done
4995
4996 echo "install prefix            $prefix"
4997 echo "source path               $source_path"
4998 echo "C compiler                $cc"
4999 echo "C library                 $libc_type"
5000 if test "$host_cc" != "$cc"; then
5001     echo "host C compiler           $host_cc"
5002     echo "host C library            $host_libc_type"
5003 fi
5004 echo "ARCH                      $arch ($cpu)"
5005 if test "$build_suffix" != ""; then
5006     echo "build suffix              $build_suffix"
5007 fi
5008 if test "$progs_suffix" != ""; then
5009     echo "progs suffix              $progs_suffix"
5010 fi
5011 if test "$extra_version" != ""; then
5012     echo "version string suffix     $extra_version"
5013 fi
5014 echo "big-endian                ${bigendian-no}"
5015 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5016 if enabled x86; then
5017     echo "${yasmexe}                      ${yasm-no}"
5018     echo "MMX enabled               ${mmx-no}"
5019     echo "MMXEXT enabled            ${mmxext-no}"
5020     echo "3DNow! enabled            ${amd3dnow-no}"
5021     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5022     echo "SSE enabled               ${sse-no}"
5023     echo "SSSE3 enabled             ${ssse3-no}"
5024     echo "AVX enabled               ${avx-no}"
5025     echo "XOP enabled               ${xop-no}"
5026     echo "FMA3 enabled              ${fma3-no}"
5027     echo "FMA4 enabled              ${fma4-no}"
5028     echo "i686 features enabled     ${i686-no}"
5029     echo "CMOV is fast              ${fast_cmov-no}"
5030     echo "EBX available             ${ebx_available-no}"
5031     echo "EBP available             ${ebp_available-no}"
5032 fi
5033 if enabled aarch64; then
5034     echo "NEON enabled              ${neon-no}"
5035     echo "VFP enabled               ${vfp-no}"
5036 fi
5037 if enabled arm; then
5038     echo "ARMv5TE enabled           ${armv5te-no}"
5039     echo "ARMv6 enabled             ${armv6-no}"
5040     echo "ARMv6T2 enabled           ${armv6t2-no}"
5041     echo "VFP enabled               ${vfp-no}"
5042     echo "NEON enabled              ${neon-no}"
5043     echo "THUMB enabled             ${thumb-no}"
5044 fi
5045 if enabled mips; then
5046     echo "MIPS FPU enabled          ${mipsfpu-no}"
5047     echo "MIPS32R2 enabled          ${mips32r2-no}"
5048     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5049     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5050 fi
5051 if enabled ppc; then
5052     echo "AltiVec enabled           ${altivec-no}"
5053     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5054     echo "dcbzl available           ${dcbzl-no}"
5055 fi
5056 echo "debug symbols             ${debug-no}"
5057 echo "strip symbols             ${stripping-no}"
5058 echo "optimize for size         ${small-no}"
5059 echo "optimizations             ${optimizations-no}"
5060 echo "static                    ${static-no}"
5061 echo "shared                    ${shared-no}"
5062 echo "postprocessing support    ${postproc-no}"
5063 echo "new filter support        ${avfilter-no}"
5064 echo "network support           ${network-no}"
5065 echo "threading support         ${thread_type-no}"
5066 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5067 echo "SDL support               ${sdl-no}"
5068 echo "opencl enabled            ${opencl-no}"
5069 echo "libzvbi enabled           ${libzvbi-no}"
5070 echo "texi2html enabled         ${texi2html-no}"
5071 echo "perl enabled              ${perl-no}"
5072 echo "pod2man enabled           ${pod2man-no}"
5073 echo "makeinfo enabled          ${makeinfo-no}"
5074 test -n "$random_seed" &&
5075     echo "random seed               ${random_seed}"
5076 echo
5077
5078 echo "External libraries:"
5079 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5080 echo
5081
5082 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5083     echo "Enabled ${type}s:"
5084     eval list=\$$(toupper $type)_LIST
5085     print_enabled '_*' $list | print_3_columns
5086     echo
5087 done
5088
5089 license="LGPL version 2.1 or later"
5090 if enabled nonfree; then
5091     license="nonfree and unredistributable"
5092 elif enabled gplv3; then
5093     license="GPL version 3 or later"
5094 elif enabled lgplv3; then
5095     license="LGPL version 3 or later"
5096 elif enabled gpl; then
5097     license="GPL version 2 or later"
5098 fi
5099
5100 echo "License: $license"
5101
5102 echo "Creating config.mak, config.h, and doc/config.texi..."
5103
5104 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5105
5106 enabled stripping || strip="echo skipping strip"
5107
5108 config_files="$TMPH config.mak doc/config.texi"
5109
5110 cat > config.mak <<EOF
5111 # Automatically generated by configure - do not modify!
5112 ifndef FFMPEG_CONFIG_MAK
5113 FFMPEG_CONFIG_MAK=1
5114 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5115 prefix=$prefix
5116 LIBDIR=\$(DESTDIR)$libdir
5117 SHLIBDIR=\$(DESTDIR)$shlibdir
5118 INCDIR=\$(DESTDIR)$incdir
5119 BINDIR=\$(DESTDIR)$bindir
5120 DATADIR=\$(DESTDIR)$datadir
5121 DOCDIR=\$(DESTDIR)$docdir
5122 MANDIR=\$(DESTDIR)$mandir
5123 SRC_PATH=$source_path
5124 ifndef MAIN_MAKEFILE
5125 SRC_PATH:=\$(SRC_PATH:.%=..%)
5126 endif
5127 CC_IDENT=$cc_ident
5128 ARCH=$arch
5129 CC=$cc
5130 CXX=$cxx
5131 AS=$as
5132 LD=$ld
5133 DEPCC=$dep_cc
5134 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5135 DEPAS=$as
5136 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5137 YASM=$yasmexe
5138 DEPYASM=$yasmexe
5139 AR=$ar
5140 ARFLAGS=$arflags
5141 AR_O=$ar_o
5142 RANLIB=$ranlib
5143 STRIP=$strip
5144 CP=cp -p
5145 LN_S=$ln_s
5146 CPPFLAGS=$CPPFLAGS
5147 CFLAGS=$CFLAGS
5148 CXXFLAGS=$CXXFLAGS
5149 ASFLAGS=$ASFLAGS
5150 AS_C=$AS_C
5151 AS_O=$AS_O
5152 CC_C=$CC_C
5153 CC_E=$CC_E
5154 CC_O=$CC_O
5155 CXX_C=$CXX_C
5156 CXX_O=$CXX_O
5157 LD_O=$LD_O
5158 LD_LIB=$LD_LIB
5159 LD_PATH=$LD_PATH
5160 DLLTOOL=$dlltool
5161 WINDRES=$windres
5162 DEPWINDRES=$dep_cc
5163 LDFLAGS=$LDFLAGS
5164 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5165 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5166 YASMFLAGS=$YASMFLAGS
5167 BUILDSUF=$build_suffix
5168 PROGSSUF=$progs_suffix
5169 FULLNAME=$FULLNAME
5170 LIBPREF=$LIBPREF
5171 LIBSUF=$LIBSUF
5172 LIBNAME=$LIBNAME
5173 SLIBPREF=$SLIBPREF
5174 SLIBSUF=$SLIBSUF
5175 EXESUF=$EXESUF
5176 EXTRA_VERSION=$extra_version
5177 CCDEP=$CCDEP
5178 CXXDEP=$CXXDEP
5179 CCDEP_FLAGS=$CCDEP_FLAGS
5180 ASDEP=$ASDEP
5181 ASDEP_FLAGS=$ASDEP_FLAGS
5182 CC_DEPFLAGS=$CC_DEPFLAGS
5183 AS_DEPFLAGS=$AS_DEPFLAGS
5184 HOSTCC=$host_cc
5185 HOSTLD=$host_ld
5186 HOSTCFLAGS=$host_cflags
5187 HOSTCPPFLAGS=$host_cppflags
5188 HOSTEXESUF=$HOSTEXESUF
5189 HOSTLDFLAGS=$host_ldflags
5190 HOSTLIBS=$host_libs
5191 DEPHOSTCC=$host_cc
5192 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5193 HOSTCCDEP=$HOSTCCDEP
5194 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5195 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5196 HOSTCC_C=$HOSTCC_C
5197 HOSTCC_O=$HOSTCC_O
5198 HOSTLD_O=$HOSTLD_O
5199 TARGET_EXEC=$target_exec $target_exec_args
5200 TARGET_PATH=$target_path
5201 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5202 CFLAGS-ffplay=$sdl_cflags
5203 ZLIB=$($ldflags_filter -lz)
5204 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5205 EXTRALIBS=$extralibs
5206 COMPAT_OBJS=$compat_objs
5207 EXEOBJS=$exeobjs
5208 INSTALL=$install
5209 LIBTARGET=${LIBTARGET}
5210 SLIBNAME=${SLIBNAME}
5211 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5212 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5213 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5214 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5215 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5216 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5217 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5218 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5219 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5220 NOREDZONE_FLAGS=$noredzone_flags
5221 EOF
5222
5223 get_version(){
5224     lcname=lib${1}
5225     name=$(toupper $lcname)
5226     file=$source_path/$lcname/version.h
5227     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5228     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5229     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5230     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5231     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5232     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5233 }
5234
5235 map 'get_version $v' $LIBRARY_LIST
5236
5237 print_program_libs(){
5238     eval "program_libs=\$${1}_libs"
5239     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5240 }
5241
5242 map 'print_program_libs $v' $PROGRAM_LIST
5243
5244 cat > $TMPH <<EOF
5245 /* Automatically generated by configure - do not modify! */
5246 #ifndef FFMPEG_CONFIG_H
5247 #define FFMPEG_CONFIG_H
5248 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5249 #define FFMPEG_LICENSE "$(c_escape $license)"
5250 #define CONFIG_THIS_YEAR 2014
5251 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5252 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5253 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5254 #define av_restrict $_restrict
5255 #define EXTERN_PREFIX "${extern_prefix}"
5256 #define EXTERN_ASM ${extern_prefix}
5257 #define BUILDSUF "$build_suffix"
5258 #define SLIBSUF "$SLIBSUF"
5259 #define HAVE_MMX2 HAVE_MMXEXT
5260 EOF
5261
5262 test -n "$assert_level" &&
5263     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5264
5265 test -n "$malloc_prefix" &&
5266     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5267
5268 if enabled yasm; then
5269     append config_files $TMPASM
5270     printf '' >$TMPASM
5271 fi
5272
5273 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5274
5275
5276 mkdir -p doc
5277 echo "@c auto-generated by configure" > doc/config.texi
5278
5279 print_config ARCH_   "$config_files" $ARCH_LIST
5280 print_config HAVE_   "$config_files" $HAVE_LIST
5281 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5282                                      $CONFIG_EXTRA      \
5283                                      $ALL_COMPONENTS    \
5284
5285 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5286 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5287
5288 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5289 cp_if_changed $TMPH config.h
5290 touch .config
5291
5292 enabled yasm && cp_if_changed $TMPASM config.asm
5293
5294 cat > $TMPH <<EOF
5295 /* Generated by ffconf */
5296 #ifndef AVUTIL_AVCONFIG_H
5297 #define AVUTIL_AVCONFIG_H
5298 EOF
5299
5300 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5301
5302 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5303
5304 cp_if_changed $TMPH libavutil/avconfig.h
5305
5306 if test -n "$WARNINGS"; then
5307     printf "\n$WARNINGS"
5308     enabled fatal_warnings && exit 1
5309 fi
5310
5311 # build pkg-config files
5312
5313 pkgconfig_generate(){
5314     name=$1
5315     shortname=${name#lib}${build_suffix}
5316     comment=$2
5317     version=$3
5318     libs=$4
5319     requires=$5
5320     enabled ${name#lib} || return 0
5321     mkdir -p $name
5322     cat <<EOF > $name/$name${build_suffix}.pc
5323 prefix=$prefix
5324 exec_prefix=\${prefix}
5325 libdir=$libdir
5326 includedir=$incdir
5327
5328 Name: $name
5329 Description: $comment
5330 Version: $version
5331 Requires: $(enabled shared || echo $requires)
5332 Requires.private: $(enabled shared && echo $requires)
5333 Conflicts:
5334 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5335 Libs.private: $(enabled shared && echo $libs)
5336 Cflags: -I\${includedir}
5337 EOF
5338
5339 mkdir -p doc/examples/pc-uninstalled
5340 includedir=${source_path}
5341 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5342     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5343 prefix=
5344 exec_prefix=
5345 libdir=\${pcfiledir}/../../../$name
5346 includedir=${includedir}
5347
5348 Name: $name
5349 Description: $comment
5350 Version: $version
5351 Requires: $requires
5352 Conflicts:
5353 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5354 Cflags: -I\${includedir}
5355 EOF
5356 }
5357
5358 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5359 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5360 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5361 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5362 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5363 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5364 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5365 lavfi_libs=${lavfi_libs%, }
5366
5367 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5368 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5369
5370 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5371 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5372 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5373 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5374 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5375 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5376 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5377 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5378 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"