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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --enable-rpath           use rpath to allow installing libraries in paths
  91                            not part of the dynamic linker search path
  92
  93 Licensing options:
  94   --enable-gpl             allow use of GPL code, the resulting libs
  95                            and binaries will be under GPL [no]
  96   --enable-version3        upgrade (L)GPL to version 3 [no]
  97   --enable-nonfree         allow use of nonfree code, the resulting libs
  98                            and binaries will be unredistributable [no]
  99
 100 Configuration options:
 101   --disable-static         do not build static libraries [no]
 102   --enable-shared          build shared libraries [no]
 103   --enable-small           optimize for size instead of speed
 104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 105   --enable-gray            enable full grayscale support (slower color)
 106   --disable-swscale-alpha  disable alpha channel support in swscale
 107   --disable-all            disable building components, libraries and programs
 108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 109   --enable-raise-major     increase major version numbers in sonames [no]
 110
 111 Program options:
 112   --disable-programs       do not build command line programs
 113   --disable-ffmpeg         disable ffmpeg build
 114   --disable-ffplay         disable ffplay build
 115   --disable-ffprobe        disable ffprobe build
 116   --disable-ffserver       disable ffserver build
 117
 118 Documentation options:
 119   --disable-doc            do not build documentation
 120   --disable-htmlpages      do not build HTML documentation pages
 121   --disable-manpages       do not build man documentation pages
 122   --disable-podpages       do not build POD documentation pages
 123   --disable-txtpages       do not build text documentation pages
 124
 125 Component options:
 126   --disable-avdevice       disable libavdevice build
 127   --disable-avcodec        disable libavcodec build
 128   --disable-avformat       disable libavformat build
 129   --disable-avutil         disable libavutil build
 130   --disable-swresample     disable libswresample build
 131   --disable-swscale        disable libswscale build
 132   --disable-postproc       disable libpostproc build
 133   --disable-avfilter       disable libavfilter build
 134   --enable-avresample      enable libavresample build [no]
 135   --disable-pthreads       disable pthreads [auto]
 136   --disable-w32threads     disable Win32 threads [auto]
 137   --disable-os2threads     disable OS/2 threads [auto]
 138   --disable-network        disable network support [no]
 139   --disable-dct            disable DCT code
 140   --disable-dwt            disable DWT code
 141   --disable-error-resilience disable error resilience code
 142   --disable-lsp            disable LSP code
 143   --disable-lzo            disable LZO decoder code
 144   --disable-mdct           disable MDCT code
 145   --disable-rdft           disable RDFT code
 146   --disable-fft            disable FFT code
 147
 148 Hardware accelerators:
 149   --disable-dxva2          disable DXVA2 code [autodetect]
 150   --disable-vaapi          disable VAAPI code [autodetect]
 151   --disable-vda            disable VDA code [autodetect]
 152   --disable-vdpau          disable VDPAU code [autodetect]
 153
 154 Individual component options:
 155   --disable-everything     disable all components listed below
 156   --disable-encoder=NAME   disable encoder NAME
 157   --enable-encoder=NAME    enable encoder NAME
 158   --disable-encoders       disable all encoders
 159   --disable-decoder=NAME   disable decoder NAME
 160   --enable-decoder=NAME    enable decoder NAME
 161   --disable-decoders       disable all decoders
 162   --disable-hwaccel=NAME   disable hwaccel NAME
 163   --enable-hwaccel=NAME    enable hwaccel NAME
 164   --disable-hwaccels       disable all hwaccels
 165   --disable-muxer=NAME     disable muxer NAME
 166   --enable-muxer=NAME      enable muxer NAME
 167   --disable-muxers         disable all muxers
 168   --disable-demuxer=NAME   disable demuxer NAME
 169   --enable-demuxer=NAME    enable demuxer NAME
 170   --disable-demuxers       disable all demuxers
 171   --enable-parser=NAME     enable parser NAME
 172   --disable-parser=NAME    disable parser NAME
 173   --disable-parsers        disable all parsers
 174   --enable-bsf=NAME        enable bitstream filter NAME
 175   --disable-bsf=NAME       disable bitstream filter NAME
 176   --disable-bsfs           disable all bitstream filters
 177   --enable-protocol=NAME   enable protocol NAME
 178   --disable-protocol=NAME  disable protocol NAME
 179   --disable-protocols      disable all protocols
 180   --enable-indev=NAME      enable input device NAME
 181   --disable-indev=NAME     disable input device NAME
 182   --disable-indevs         disable input devices
 183   --enable-outdev=NAME     enable output device NAME
 184   --disable-outdev=NAME    disable output device NAME
 185   --disable-outdevs        disable output devices
 186   --disable-devices        disable all devices
 187   --enable-filter=NAME     enable filter NAME
 188   --disable-filter=NAME    disable filter NAME
 189   --disable-filters        disable all filters
 190
 191 External library support:
 192   --enable-avisynth        enable reading of AviSynth script files [no]
 193   --disable-bzlib          disable bzlib [autodetect]
 194   --enable-fontconfig      enable fontconfig
 195   --enable-frei0r          enable frei0r video filtering
 196   --enable-gnutls          enable gnutls [no]
 197   --disable-iconv          disable iconv [autodetect]
 198   --enable-ladspa          enable LADSPA audio filtering
 199   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 200   --enable-libass          enable libass subtitles rendering [no]
 201   --enable-libbluray       enable BluRay reading using libbluray [no]
 202   --enable-libbs2b         enable bs2b DSP library [no]
 203   --enable-libcaca         enable textual display using libcaca
 204   --enable-libcelt         enable CELT decoding via libcelt [no]
 205   --enable-libcdio         enable audio CD grabbing with libcdio
 206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 207                            and libraw1394 [no]
 208   --enable-libfaac         enable AAC encoding via libfaac [no]
 209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 211   --enable-libfreetype     enable libfreetype [no]
 212   --enable-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 de/encoding 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   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 290   --host-cc=HOSTCC         use host C compiler HOSTCC
 291   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 292   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 293   --host-ld=HOSTLD         use host linker HOSTLD
 294   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 295   --host-libs=HLIBS        use libs HLIBS when linking for host
 296   --host-os=OS             compiler host OS [$target_os]
 297   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 298   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 299   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 300   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 301   --extra-version=STRING   version string suffix []
 302   --optflags=OPTFLAGS      override optimization-related compiler flags
 303   --build-suffix=SUFFIX    library name suffix []
 304   --enable-pic             build position-independent code
 305   --enable-thumb           compile for Thumb instruction set
 306   --enable-lto             use link-time optimization
 307
 308 Advanced options (experts only):
 309   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 310   --disable-symver         disable symbol versioning
 311   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 312   --disable-safe-bitstream-reader
 313                            disable buffer boundary checking in bitreaders
 314                            (faster, but may crash)
 315   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 316   --enable-sram            allow use of on-chip SRAM
 317   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 318
 319 Optimization options (experts only):
 320   --disable-asm            disable all assembler optimizations
 321   --disable-altivec        disable AltiVec optimizations
 322   --disable-amd3dnow       disable 3DNow! optimizations
 323   --disable-amd3dnowext    disable 3DNow! extended optimizations
 324   --disable-mmx            disable MMX optimizations
 325   --disable-mmxext         disable MMXEXT optimizations
 326   --disable-sse            disable SSE optimizations
 327   --disable-sse2           disable SSE2 optimizations
 328   --disable-sse3           disable SSE3 optimizations
 329   --disable-ssse3          disable SSSE3 optimizations
 330   --disable-sse4           disable SSE4 optimizations
 331   --disable-sse42          disable SSE4.2 optimizations
 332   --disable-avx            disable AVX optimizations
 333   --disable-xop            disable XOP optimizations
 334   --disable-fma3           disable FMA3 optimizations
 335   --disable-fma4           disable FMA4 optimizations
 336   --disable-avx2           disable AVX2 optimizations
 337   --disable-armv5te        disable armv5te optimizations
 338   --disable-armv6          disable armv6 optimizations
 339   --disable-armv6t2        disable armv6t2 optimizations
 340   --disable-vfp            disable VFP optimizations
 341   --disable-neon           disable NEON optimizations
 342   --disable-inline-asm     disable use of inline assembler
 343   --disable-yasm           disable use of yasm assembler
 344   --disable-mips32r2       disable MIPS32R2 optimizations
 345   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 346   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 347   --disable-mipsfpu        disable floating point MIPS optimizations
 348   --disable-fast-unaligned consider unaligned accesses slow
 349
 350 Developer options (useful when working on FFmpeg itself):
 351   --disable-debug          disable debugging symbols
 352   --enable-debug=LEVEL     set the debug level [$debuglevel]
 353   --disable-optimizations  disable compiler optimizations
 354   --enable-extra-warnings  enable more compiler warnings
 355   --disable-stripping      disable stripping of executables and shared libraries
 356   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 357                            2 causes a slowdown at runtime.
 358   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 359   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 360                            leaks and errors, using the specified valgrind binary.
 361                            Cannot be combined with --target-exec
 362   --enable-ftrapv          Trap arithmetic overflows
 363   --samples=PATH           location of test samples for FATE, if not set use
 364                            \$FATE_SAMPLES at make invocation time.
 365   --enable-neon-clobber-test check NEON registers for clobbering (should be
 366                            used only for debugging purposes)
 367   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 368                            should be used only for debugging purposes)
 369   --enable-random          randomly enable/disable components
 370   --disable-random
 371   --enable-random=LIST     randomly enable/disable specific components or
 372   --disable-random=LIST    component groups. LIST is a comma-separated list
 373                            of NAME[:PROB] entries where NAME is a component
 374                            (group) and PROB the probability associated with
 375                            NAME (default 0.5).
 376   --random-seed=VALUE      seed value for --enable/disable-random
 377
 378 NOTE: Object files are built at the place where configure is launched.
 379 EOF
 380   exit 0
 381 }
 382
 383 quotes='""'
 384
 385 log(){
 386     echo "$@" >> $logfile
 387 }
 388
 389 log_file(){
 390     log BEGIN $1
 391     pr -n -t $1 >> $logfile
 392     log END $1
 393 }
 394
 395 echolog(){
 396     log "$@"
 397     echo "$@"
 398 }
 399
 400 warn(){
 401     log "WARNING: $*"
 402     WARNINGS="${WARNINGS}WARNING: $*\n"
 403 }
 404
 405 die(){
 406     echolog "$@"
 407     cat <<EOF
 408
 409 If you think configure made a mistake, make sure you are using the latest
 410 version from Git.  If the latest version fails, report the problem to the
 411 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 412 EOF
 413     if disabled logging; then
 414         cat <<EOF
 415 Rerun configure with logging enabled (do not use --disable-logging), and
 416 include the log this produces with your report.
 417 EOF
 418     else
 419         cat <<EOF
 420 Include the log file "$logfile" produced by configure as this will help
 421 solve the problem.
 422 EOF
 423     fi
 424     exit 1
 425 }
 426
 427 # Avoid locale weirdness, besides we really just want to translate ASCII.
 428 toupper(){
 429     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 430 }
 431
 432 tolower(){
 433     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 434 }
 435
 436 c_escape(){
 437     echo "$*" | sed 's/["\\]/\\\0/g'
 438 }
 439
 440 sh_quote(){
 441     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 442     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 443     echo "$v"
 444 }
 445
 446 cleanws(){
 447     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 448 }
 449
 450 filter(){
 451     pat=$1
 452     shift
 453     for v; do
 454         eval "case $v in $pat) echo $v ;; esac"
 455     done
 456 }
 457
 458 filter_out(){
 459     pat=$1
 460     shift
 461     for v; do
 462         eval "case $v in $pat) ;; *) echo $v ;; esac"
 463     done
 464 }
 465
 466 map(){
 467     m=$1
 468     shift
 469     for v; do eval $m; done
 470 }
 471
 472 add_suffix(){
 473     suffix=$1
 474     shift
 475     for v; do echo ${v}${suffix}; done
 476 }
 477
 478 set_all(){
 479     value=$1
 480     shift
 481     for var in $*; do
 482         eval $var=$value
 483     done
 484 }
 485
 486 set_weak(){
 487     value=$1
 488     shift
 489     for var; do
 490         eval : \${$var:=$value}
 491     done
 492 }
 493
 494 sanitize_var_name(){
 495     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 496 }
 497
 498 set_safe(){
 499     var=$1
 500     shift
 501     eval $(sanitize_var_name "$var")='$*'
 502 }
 503
 504 get_safe(){
 505     eval echo \$$(sanitize_var_name "$1")
 506 }
 507
 508 pushvar(){
 509     for pvar in $*; do
 510         eval level=\${${pvar}_level:=0}
 511         eval ${pvar}_${level}="\$$pvar"
 512         eval ${pvar}_level=$(($level+1))
 513     done
 514 }
 515
 516 popvar(){
 517     for pvar in $*; do
 518         eval level=\${${pvar}_level:-0}
 519         test $level = 0 && continue
 520         eval level=$(($level-1))
 521         eval $pvar="\${${pvar}_${level}}"
 522         eval ${pvar}_level=$level
 523         eval unset ${pvar}_${level}
 524     done
 525 }
 526
 527 enable(){
 528     set_all yes $*
 529 }
 530
 531 disable(){
 532     set_all no $*
 533 }
 534
 535 enable_weak(){
 536     set_weak yes $*
 537 }
 538
 539 disable_weak(){
 540     set_weak no $*
 541 }
 542
 543 enable_safe(){
 544     for var; do
 545         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 546     done
 547 }
 548
 549 disable_safe(){
 550     for var; do
 551         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 552     done
 553 }
 554
 555 do_enable_deep(){
 556     for var; do
 557         enabled $var && continue
 558         eval sel="\$${var}_select"
 559         eval sgs="\$${var}_suggest"
 560         pushvar var sgs
 561         enable_deep $sel
 562         popvar sgs
 563         enable_deep_weak $sgs
 564         popvar var
 565     done
 566 }
 567
 568 enable_deep(){
 569     do_enable_deep $*
 570     enable $*
 571 }
 572
 573 enable_deep_weak(){
 574     for var; do
 575         disabled $var && continue
 576         pushvar var
 577         do_enable_deep $var
 578         popvar var
 579         enable_weak $var
 580     done
 581 }
 582
 583 enabled(){
 584     test "${1#!}" = "$1" && op== || op=!=
 585     eval test "x\$${1#!}" $op "xyes"
 586 }
 587
 588 disabled(){
 589     test "${1#!}" = "$1" && op== || op=!=
 590     eval test "x\$${1#!}" $op "xno"
 591 }
 592
 593 enabled_all(){
 594     for opt; do
 595         enabled $opt || return 1
 596     done
 597 }
 598
 599 disabled_all(){
 600     for opt; do
 601         disabled $opt || return 1
 602     done
 603 }
 604
 605 enabled_any(){
 606     for opt; do
 607         enabled $opt && return 0
 608     done
 609 }
 610
 611 disabled_any(){
 612     for opt; do
 613         disabled $opt && return 0
 614     done
 615     return 1
 616 }
 617
 618 set_default(){
 619     for opt; do
 620         eval : \${$opt:=\$${opt}_default}
 621     done
 622 }
 623
 624 is_in(){
 625     value=$1
 626     shift
 627     for var in $*; do
 628         [ $var = $value ] && return 0
 629     done
 630     return 1
 631 }
 632
 633 do_check_deps(){
 634     for cfg; do
 635         cfg="${cfg#!}"
 636         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 637         disabled ${cfg}_checking && continue
 638         enable ${cfg}_checking
 639         append allopts $cfg
 640
 641         eval dep_all="\$${cfg}_deps"
 642         eval dep_any="\$${cfg}_deps_any"
 643         eval dep_sel="\$${cfg}_select"
 644         eval dep_sgs="\$${cfg}_suggest"
 645         eval dep_ifa="\$${cfg}_if"
 646         eval dep_ifn="\$${cfg}_if_any"
 647
 648         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 649         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 650         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 651
 652         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 653         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 654         enabled_all  $dep_all || disable $cfg
 655         enabled_any  $dep_any || disable $cfg
 656         disabled_any $dep_sel && disable $cfg
 657
 658         if enabled $cfg; then
 659             enable_deep $dep_sel
 660             enable_deep_weak $dep_sgs
 661         fi
 662
 663         disable ${cfg}_checking
 664     done
 665 }
 666
 667 check_deps(){
 668     unset allopts
 669
 670     do_check_deps "$@"
 671
 672     for cfg in $allopts; do
 673         enabled $cfg || continue
 674         eval dep_extralibs="\$${cfg}_extralibs"
 675         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 676     done
 677 }
 678
 679 print_config(){
 680     pfx=$1
 681     files=$2
 682     shift 2
 683     map 'eval echo "$v \${$v:-no}"' "$@" |
 684     awk "BEGIN { split(\"$files\", files) }
 685         {
 686             c = \"$pfx\" toupper(\$1);
 687             v = \$2;
 688             sub(/yes/, 1, v);
 689             sub(/no/,  0, v);
 690             for (f in files) {
 691                 file = files[f];
 692                 if (file ~ /\\.h\$/) {
 693                     printf(\"#define %s %d\\n\", c, v) >>file;
 694                 } else if (file ~ /\\.asm\$/) {
 695                     printf(\"%%define %s %d\\n\", c, v) >>file;
 696                 } else if (file ~ /\\.mak\$/) {
 697                     n = -v ? \"\" : \"!\";
 698                     printf(\"%s%s=yes\\n\", n, c) >>file;
 699                 } else if (file ~ /\\.texi\$/) {
 700                     pre = -v ? \"\" : \"@c \";
 701                     yesno = \$2;
 702                     c2 = tolower(c);
 703                     gsub(/_/, \"-\", c2);
 704                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 705                 }
 706             }
 707         }"
 708 }
 709
 710 print_enabled(){
 711     suf=$1
 712     shift
 713     for v; do
 714         enabled $v && printf "%s\n" ${v%$suf};
 715     done
 716 }
 717
 718 append(){
 719     var=$1
 720     shift
 721     eval "$var=\"\$$var $*\""
 722 }
 723
 724 prepend(){
 725     var=$1
 726     shift
 727     eval "$var=\"$* \$$var\""
 728 }
 729
 730 unique(){
 731     var=$1
 732     uniq_list=""
 733     for tok in $(eval echo \$$var); do
 734         uniq_list="$(filter_out $tok $uniq_list) $tok"
 735     done
 736     eval "$var=\"${uniq_list}\""
 737 }
 738
 739 add_cppflags(){
 740     append CPPFLAGS "$@"
 741 }
 742
 743 add_cflags(){
 744     append CFLAGS $($cflags_filter "$@")
 745 }
 746
 747 add_cxxflags(){
 748     append CXXFLAGS $($cflags_filter "$@")
 749 }
 750
 751 add_asflags(){
 752     append ASFLAGS $($asflags_filter "$@")
 753 }
 754
 755 add_ldflags(){
 756     append LDFLAGS $($ldflags_filter "$@")
 757 }
 758
 759 add_stripflags(){
 760     append ASMSTRIPFLAGS "$@"
 761 }
 762
 763 add_extralibs(){
 764     prepend extralibs $($ldflags_filter "$@")
 765 }
 766
 767 add_host_cppflags(){
 768     append host_cppflags "$@"
 769 }
 770
 771 add_host_cflags(){
 772     append host_cflags $($host_cflags_filter "$@")
 773 }
 774
 775 add_host_ldflags(){
 776     append host_ldflags $($host_ldflags_filter "$@")
 777 }
 778
 779 add_compat(){
 780     append compat_objs $1
 781     shift
 782     map 'add_cppflags -D$v' "$@"
 783 }
 784
 785 check_cmd(){
 786     log "$@"
 787     "$@" >> $logfile 2>&1
 788 }
 789
 790 check_stat(){
 791     log check_stat "$@"
 792     stat "$1" >> $logfile 2>&1
 793 }
 794
 795 cc_o(){
 796     eval printf '%s\\n' $CC_O
 797 }
 798
 799 cc_e(){
 800     eval printf '%s\\n' $CC_E
 801 }
 802
 803 check_cc(){
 804     log check_cc "$@"
 805     cat > $TMPC
 806     log_file $TMPC
 807     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 808 }
 809
 810 check_cxx(){
 811     log check_cxx "$@"
 812     cat > $TMPCPP
 813     log_file $TMPCPP
 814     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 815 }
 816
 817 check_oc(){
 818     log check_oc "$@"
 819     cat > $TMPM
 820     log_file $TMPM
 821     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 822 }
 823
 824 check_cpp(){
 825     log check_cpp "$@"
 826     cat > $TMPC
 827     log_file $TMPC
 828     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 829 }
 830
 831 as_o(){
 832     eval printf '%s\\n' $AS_O
 833 }
 834
 835 check_as(){
 836     log check_as "$@"
 837     cat > $TMPS
 838     log_file $TMPS
 839     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 840 }
 841
 842 check_inline_asm(){
 843     log check_inline_asm "$@"
 844     name="$1"
 845     code="$2"
 846     shift 2
 847     disable $name
 848     check_cc "$@" <<EOF && enable $name
 849 void foo(void){ __asm__ volatile($code); }
 850 EOF
 851 }
 852
 853 check_insn(){
 854     log check_insn "$@"
 855     check_inline_asm ${1}_inline "\"$2\""
 856     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 857 }
 858
 859 check_yasm(){
 860     log check_yasm "$@"
 861     echo "$1" > $TMPS
 862     log_file $TMPS
 863     shift 1
 864     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 865 }
 866
 867 ld_o(){
 868     eval printf '%s\\n' $LD_O
 869 }
 870
 871 check_ld(){
 872     log check_ld "$@"
 873     type=$1
 874     shift 1
 875     flags=$(filter_out '-l*|*.so' $@)
 876     libs=$(filter '-l*|*.so' $@)
 877     check_$type $($cflags_filter $flags) || return
 878     flags=$($ldflags_filter $flags)
 879     libs=$($ldflags_filter $libs)
 880     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 881 }
 882
 883 print_include(){
 884     hdr=$1
 885     test "${hdr%.h}" = "${hdr}" &&
 886         echo "#include $hdr"    ||
 887         echo "#include <$hdr>"
 888 }
 889
 890 check_code(){
 891     log check_code "$@"
 892     check=$1
 893     headers=$2
 894     code=$3
 895     shift 3
 896     {
 897         for hdr in $headers; do
 898             print_include $hdr
 899         done
 900         echo "int main(void) { $code; return 0; }"
 901     } | check_$check "$@"
 902 }
 903
 904 check_cppflags(){
 905     log check_cppflags "$@"
 906     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 907 int x;
 908 EOF
 909 }
 910
 911 test_cflags(){
 912     log test_cflags "$@"
 913     set -- $($cflags_filter "$@")
 914     check_cc "$@" <<EOF
 915 int x;
 916 EOF
 917 }
 918
 919 check_cflags(){
 920     log check_cflags "$@"
 921     test_cflags "$@" && add_cflags "$@"
 922 }
 923
 924 check_cxxflags(){
 925     log check_cxxflags "$@"
 926     set -- $($cflags_filter "$@")
 927     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 928 int x;
 929 EOF
 930 }
 931
 932 test_ldflags(){
 933     log test_ldflags "$@"
 934     check_ld "cc" "$@" <<EOF
 935 int main(void){ return 0; }
 936 EOF
 937 }
 938
 939 check_ldflags(){
 940     log check_ldflags "$@"
 941     test_ldflags "$@" && add_ldflags "$@"
 942 }
 943
 944 test_stripflags(){
 945     log test_stripflags "$@"
 946     # call check_cc to get a fresh TMPO
 947     check_cc <<EOF
 948 int main(void) { return 0; }
 949 EOF
 950     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 951 }
 952
 953 check_stripflags(){
 954     log check_stripflags "$@"
 955     test_stripflags "$@" && add_stripflags "$@"
 956 }
 957
 958 check_header(){
 959     log check_header "$@"
 960     header=$1
 961     shift
 962     disable_safe $header
 963     check_cpp "$@" <<EOF && enable_safe $header
 964 #include <$header>
 965 int x;
 966 EOF
 967 }
 968
 969 check_header_oc(){
 970     log check_header_oc "$@"
 971     rm -f -- "$TMPO"
 972     header=$1
 973     shift
 974     disable_safe $header
 975     {
 976        echo "#include <$header>"
 977        echo "int main(void) { return 0; }"
 978     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 979 }
 980
 981 check_func(){
 982     log check_func "$@"
 983     func=$1
 984     shift
 985     disable $func
 986     check_ld "cc" "$@" <<EOF && enable $func
 987 extern int $func();
 988 int main(void){ $func(); }
 989 EOF
 990 }
 991
 992 check_mathfunc(){
 993     log check_mathfunc "$@"
 994     func=$1
 995     narg=$2
 996     shift 2
 997     test $narg = 2 && args="f, g" || args="f"
 998     disable $func
 999     check_ld "cc" "$@" <<EOF && enable $func
1000 #include <math.h>
1001 float foo(float f, float g) { return $func($args); }
1002 int main(void){ return (int) foo; }
1003 EOF
1004 }
1005
1006 check_func_headers(){
1007     log check_func_headers "$@"
1008     headers=$1
1009     funcs=$2
1010     shift 2
1011     {
1012         for hdr in $headers; do
1013             print_include $hdr
1014         done
1015         for func in $funcs; do
1016             echo "long check_$func(void) { return (long) $func; }"
1017         done
1018         echo "int main(void) { return 0; }"
1019     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1020 }
1021
1022 check_class_headers_cpp(){
1023     log check_class_headers_cpp "$@"
1024     headers=$1
1025     classes=$2
1026     shift 2
1027     {
1028         for hdr in $headers; do
1029             echo "#include <$hdr>"
1030         done
1031         echo "int main(void) { "
1032         i=1
1033         for class in $classes; do
1034             echo "$class obj$i;"
1035             i=$(expr $i + 1)
1036         done
1037         echo "return 0; }"
1038     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1039 }
1040
1041 check_cpp_condition(){
1042     log check_cpp_condition "$@"
1043     header=$1
1044     condition=$2
1045     shift 2
1046     check_cpp "$@" <<EOF
1047 #include <$header>
1048 #if !($condition)
1049 #error "unsatisfied condition: $condition"
1050 #endif
1051 EOF
1052 }
1053
1054 check_lib(){
1055     log check_lib "$@"
1056     header="$1"
1057     func="$2"
1058     shift 2
1059     check_header $header && check_func $func "$@" && add_extralibs "$@"
1060 }
1061
1062 check_lib2(){
1063     log check_lib2 "$@"
1064     headers="$1"
1065     funcs="$2"
1066     shift 2
1067     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1068 }
1069
1070 check_lib_cpp(){
1071     log check_lib_cpp "$@"
1072     headers="$1"
1073     classes="$2"
1074     shift 2
1075     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1076 }
1077
1078 check_pkg_config(){
1079     log check_pkg_config "$@"
1080     pkgandversion="$1"
1081     pkg="${1%% *}"
1082     headers="$2"
1083     funcs="$3"
1084     shift 3
1085     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1086     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1087     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1088     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1089         set_safe ${pkg}_cflags $pkg_cflags   &&
1090         set_safe ${pkg}_libs   $pkg_libs
1091 }
1092
1093 check_exec(){
1094     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1095 }
1096
1097 check_exec_crash(){
1098     code=$(cat)
1099
1100     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1101     # are safe but may not be available everywhere.  Thus we use
1102     # raise(SIGTERM) instead.  The check is run in a subshell so we
1103     # can redirect the "Terminated" message from the shell.  SIGBUS
1104     # is not defined by standard C so it is used conditionally.
1105
1106     (check_exec "$@") >> $logfile 2>&1 <<EOF
1107 #include <signal.h>
1108 static void sighandler(int sig){
1109     raise(SIGTERM);
1110 }
1111 int foo(void){
1112     $code
1113 }
1114 int (*func_ptr)(void) = foo;
1115 int main(void){
1116     signal(SIGILL, sighandler);
1117     signal(SIGFPE, sighandler);
1118     signal(SIGSEGV, sighandler);
1119 #ifdef SIGBUS
1120     signal(SIGBUS, sighandler);
1121 #endif
1122     return func_ptr();
1123 }
1124 EOF
1125 }
1126
1127 check_type(){
1128     log check_type "$@"
1129     headers=$1
1130     type=$2
1131     shift 2
1132     disable_safe "$type"
1133     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1134 }
1135
1136 check_struct(){
1137     log check_struct "$@"
1138     headers=$1
1139     struct=$2
1140     member=$3
1141     shift 3
1142     disable_safe "${struct}_${member}"
1143     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1144         enable_safe "${struct}_${member}"
1145 }
1146
1147 check_builtin(){
1148     log check_builtin "$@"
1149     name=$1
1150     headers=$2
1151     builtin=$3
1152     shift 3
1153     disable "$name"
1154     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1155 }
1156
1157 check_compile_assert(){
1158     log check_compile_assert "$@"
1159     name=$1
1160     headers=$2
1161     condition=$3
1162     shift 3
1163     disable "$name"
1164     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1165 }
1166
1167 require(){
1168     name="$1"
1169     header="$2"
1170     func="$3"
1171     shift 3
1172     check_lib $header $func "$@" || die "ERROR: $name not found"
1173 }
1174
1175 require2(){
1176     name="$1"
1177     headers="$2"
1178     func="$3"
1179     shift 3
1180     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1181 }
1182
1183 require_cpp(){
1184     name="$1"
1185     headers="$2"
1186     classes="$3"
1187     shift 3
1188     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1189 }
1190
1191 require_pkg_config(){
1192     pkg="$1"
1193     check_pkg_config "$@" || die "ERROR: $pkg not found"
1194     add_cflags    $(get_safe ${pkg}_cflags)
1195     add_extralibs $(get_safe ${pkg}_libs)
1196 }
1197
1198 require_libfreetype(){
1199     log require_libfreetype "$@"
1200     pkg="freetype2"
1201     check_cmd $pkg_config --exists --print-errors $pkg \
1202       || die "ERROR: $pkg not found"
1203     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1204     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1205     {
1206         echo "#include <ft2build.h>"
1207         echo "#include FT_FREETYPE_H"
1208         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1209         echo "int main(void) { return 0; }"
1210     } | check_ld "cc" $pkg_cflags $pkg_libs \
1211       && set_safe ${pkg}_cflags $pkg_cflags \
1212       && set_safe ${pkg}_libs   $pkg_libs \
1213       || die "ERROR: $pkg not found"
1214     add_cflags    $(get_safe ${pkg}_cflags)
1215     add_extralibs $(get_safe ${pkg}_libs)
1216 }
1217
1218 hostcc_e(){
1219     eval printf '%s\\n' $HOSTCC_E
1220 }
1221
1222 hostcc_o(){
1223     eval printf '%s\\n' $HOSTCC_O
1224 }
1225
1226 check_host_cc(){
1227     log check_host_cc "$@"
1228     cat > $TMPC
1229     log_file $TMPC
1230     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1231 }
1232
1233 check_host_cpp(){
1234     log check_host_cpp "$@"
1235     cat > $TMPC
1236     log_file $TMPC
1237     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1238 }
1239
1240 check_host_cppflags(){
1241     log check_host_cppflags "$@"
1242     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1243 int x;
1244 EOF
1245 }
1246
1247 check_host_cflags(){
1248     log check_host_cflags "$@"
1249     set -- $($host_cflags_filter "$@")
1250     check_host_cc "$@" <<EOF && append host_cflags "$@"
1251 int x;
1252 EOF
1253 }
1254
1255 check_host_cpp_condition(){
1256     log check_host_cpp_condition "$@"
1257     header=$1
1258     condition=$2
1259     shift 2
1260     check_host_cpp "$@" <<EOF
1261 #include <$header>
1262 #if !($condition)
1263 #error "unsatisfied condition: $condition"
1264 #endif
1265 EOF
1266 }
1267
1268 apply(){
1269     file=$1
1270     shift
1271     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1272 }
1273
1274 cp_if_changed(){
1275     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1276     mkdir -p "$(dirname $2)"
1277     $cp_f "$1" "$2"
1278 }
1279
1280 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1281 # system-dependent things.
1282
1283 COMPONENT_LIST="
1284     bsfs
1285     decoders
1286     demuxers
1287     encoders
1288     filters
1289     hwaccels
1290     indevs
1291     muxers
1292     outdevs
1293     parsers
1294     protocols
1295 "
1296
1297 EXAMPLE_LIST="
1298     avio_reading_example
1299     decoding_encoding_example
1300     demuxing_decoding_example
1301     filter_audio_example
1302     filtering_audio_example
1303     filtering_video_example
1304     metadata_example
1305     muxing_example
1306     remuxing_example
1307     resampling_audio_example
1308     scaling_video_example
1309     transcode_aac_example
1310     transcoding_example
1311 "
1312
1313 EXTERNAL_LIBRARY_LIST="
1314     avisynth
1315     bzlib
1316     crystalhd
1317     decklink
1318     frei0r
1319     gnutls
1320     iconv
1321     ladspa
1322     libaacplus
1323     libass
1324     libbluray
1325     libbs2b
1326     libcaca
1327     libcdio
1328     libcelt
1329     libdc1394
1330     libfaac
1331     libfdk_aac
1332     libflite
1333     libfontconfig
1334     libfreetype
1335     libgme
1336     libgsm
1337     libiec61883
1338     libilbc
1339     libmodplug
1340     libmp3lame
1341     libnut
1342     libopencore_amrnb
1343     libopencore_amrwb
1344     libopencv
1345     libopenjpeg
1346     libopus
1347     libpulse
1348     libquvi
1349     librtmp
1350     libschroedinger
1351     libshine
1352     libsoxr
1353     libspeex
1354     libssh
1355     libstagefright_h264
1356     libtheora
1357     libtwolame
1358     libutvideo
1359     libv4l2
1360     libvidstab
1361     libvo_aacenc
1362     libvo_amrwbenc
1363     libvorbis
1364     libvpx
1365     libwavpack
1366     libwebp
1367     libx264
1368     libx265
1369     libxavs
1370     libxvid
1371     libzmq
1372     libzvbi
1373     openal
1374     opencl
1375     opengl
1376     openssl
1377     x11grab
1378     xlib
1379     zlib
1380 "
1381
1382 DOCUMENT_LIST="
1383     doc
1384     htmlpages
1385     manpages
1386     podpages
1387     txtpages
1388 "
1389
1390 FEATURE_LIST="
1391     ftrapv
1392     gray
1393     hardcoded_tables
1394     runtime_cpudetect
1395     safe_bitstream_reader
1396     shared
1397     small
1398     sram
1399     static
1400     swscale_alpha
1401 "
1402
1403 HWACCEL_LIST="
1404     dxva2
1405     vaapi
1406     vda
1407     vdpau
1408     xvmc
1409 "
1410
1411 LIBRARY_LIST="
1412     avcodec
1413     avdevice
1414     avfilter
1415     avformat
1416     avresample
1417     avutil
1418     postproc
1419     swresample
1420     swscale
1421 "
1422
1423 LICENSE_LIST="
1424     gpl
1425     nonfree
1426     version3
1427 "
1428
1429 PROGRAM_LIST="
1430     ffplay
1431     ffprobe
1432     ffserver
1433     ffmpeg
1434 "
1435
1436 SUBSYSTEM_LIST="
1437     dct
1438     dwt
1439     error_resilience
1440     fast_unaligned
1441     fft
1442     lsp
1443     lzo
1444     mdct
1445     network
1446     rdft
1447 "
1448
1449 CONFIG_LIST="
1450     $COMPONENT_LIST
1451     $DOCUMENT_LIST
1452     $EXAMPLE_LIST
1453     $EXTERNAL_LIBRARY_LIST
1454     $FEATURE_LIST
1455     $HWACCEL_LIST
1456     $LICENSE_LIST
1457     $LIBRARY_LIST
1458     $PROGRAM_LIST
1459     $SUBSYSTEM_LIST
1460     fontconfig
1461     incompatible_libav_abi
1462     memalign_hack
1463     memory_poisoning
1464     neon_clobber_test
1465     pic
1466     pod2man
1467     raise_major
1468     thumb
1469     xmm_clobber_test
1470 "
1471
1472 THREADS_LIST="
1473     pthreads
1474     os2threads
1475     w32threads
1476 "
1477
1478 ATOMICS_LIST="
1479     atomics_gcc
1480     atomics_suncc
1481     atomics_win32
1482 "
1483
1484 ARCH_LIST="
1485     aarch64
1486     alpha
1487     arm
1488     avr32
1489     avr32_ap
1490     avr32_uc
1491     bfin
1492     ia64
1493     m68k
1494     mips
1495     mips64
1496     parisc
1497     ppc
1498     ppc64
1499     s390
1500     sh4
1501     sparc
1502     sparc64
1503     tilegx
1504     tilepro
1505     tomi
1506     x86
1507     x86_32
1508     x86_64
1509 "
1510
1511 ARCH_EXT_LIST_ARM="
1512     armv5te
1513     armv6
1514     armv6t2
1515     armv8
1516     neon
1517     vfp
1518     vfpv3
1519 "
1520
1521 ARCH_EXT_LIST_MIPS="
1522     mipsfpu
1523     mips32r2
1524     mipsdspr1
1525     mipsdspr2
1526 "
1527
1528 ARCH_EXT_LIST_X86_SIMD="
1529     amd3dnow
1530     amd3dnowext
1531     avx
1532     avx2
1533     fma3
1534     fma4
1535     mmx
1536     mmxext
1537     sse
1538     sse2
1539     sse3
1540     sse4
1541     sse42
1542     ssse3
1543     xop
1544 "
1545
1546 ARCH_EXT_LIST_PPC="
1547     altivec
1548     dcbzl
1549     ldbrx
1550     ppc4xx
1551 "
1552
1553 ARCH_EXT_LIST_X86="
1554     $ARCH_EXT_LIST_X86_SIMD
1555     cpunop
1556     i686
1557 "
1558
1559 ARCH_EXT_LIST="
1560     $ARCH_EXT_LIST_ARM
1561     $ARCH_EXT_LIST_PPC
1562     $ARCH_EXT_LIST_X86
1563     $ARCH_EXT_LIST_MIPS
1564     loongson
1565 "
1566
1567 ARCH_FEATURES="
1568     aligned_stack
1569     fast_64bit
1570     fast_clz
1571     fast_cmov
1572     local_aligned_8
1573     local_aligned_16
1574     local_aligned_32
1575 "
1576
1577 BUILTIN_LIST="
1578     atomic_cas_ptr
1579     machine_rw_barrier
1580     MemoryBarrier
1581     mm_empty
1582     rdtsc
1583     sarestart
1584     sync_val_compare_and_swap
1585 "
1586 HAVE_LIST_CMDLINE="
1587     inline_asm
1588     symver
1589     yasm
1590 "
1591
1592 HAVE_LIST_PUB="
1593     bigendian
1594     fast_unaligned
1595     incompatible_libav_abi
1596 "
1597
1598 HEADERS_LIST="
1599     alsa_asoundlib_h
1600     altivec_h
1601     arpa_inet_h
1602     asm_types_h
1603     cdio_paranoia_h
1604     cdio_paranoia_paranoia_h
1605     CL_cl_h
1606     dev_bktr_ioctl_bt848_h
1607     dev_bktr_ioctl_meteor_h
1608     dev_ic_bt8xx_h
1609     dev_video_bktr_ioctl_bt848_h
1610     dev_video_meteor_ioctl_meteor_h
1611     direct_h
1612     dlfcn_h
1613     dxva_h
1614     ES2_gl_h
1615     gsm_h
1616     io_h
1617     mach_mach_time_h
1618     machine_ioctl_bt848_h
1619     machine_ioctl_meteor_h
1620     malloc_h
1621     openjpeg_1_5_openjpeg_h
1622     OpenGL_gl3_h
1623     poll_h
1624     sndio_h
1625     soundcard_h
1626     sys_mman_h
1627     sys_param_h
1628     sys_resource_h
1629     sys_select_h
1630     sys_soundcard_h
1631     sys_time_h
1632     sys_un_h
1633     sys_videoio_h
1634     termios_h
1635     unistd_h
1636     windows_h
1637     winsock2_h
1638 "
1639
1640 MATH_FUNCS="
1641     atanf
1642     atan2f
1643     cbrt
1644     cbrtf
1645     cosf
1646     exp2
1647     exp2f
1648     expf
1649     fminf
1650     isinf
1651     isnan
1652     ldexpf
1653     llrint
1654     llrintf
1655     log2
1656     log2f
1657     log10f
1658     lrint
1659     lrintf
1660     powf
1661     rint
1662     round
1663     roundf
1664     sinf
1665     trunc
1666     truncf
1667 "
1668
1669 SYSTEM_FUNCS="
1670     access
1671     aligned_malloc
1672     clock_gettime
1673     closesocket
1674     CommandLineToArgvW
1675     CoTaskMemFree
1676     CryptGenRandom
1677     dlopen
1678     fcntl
1679     flt_lim
1680     fork
1681     getaddrinfo
1682     gethrtime
1683     getopt
1684     GetProcessAffinityMask
1685     GetProcessMemoryInfo
1686     GetProcessTimes
1687     getrusage
1688     getservbyport
1689     GetSystemTimeAsFileTime
1690     gettimeofday
1691     glob
1692     glXGetProcAddress
1693     inet_aton
1694     isatty
1695     jack_port_get_latency_range
1696     kbhit
1697     localtime_r
1698     lzo1x_999_compress
1699     mach_absolute_time
1700     MapViewOfFile
1701     memalign
1702     mkstemp
1703     mmap
1704     mprotect
1705     nanosleep
1706     PeekNamedPipe
1707     posix_memalign
1708     pthread_cancel
1709     sched_getaffinity
1710     SetConsoleTextAttribute
1711     setmode
1712     setrlimit
1713     Sleep
1714     strerror_r
1715     sysconf
1716     sysctl
1717     usleep
1718     VirtualAlloc
1719     wglGetProcAddress
1720 "
1721
1722 TOOLCHAIN_FEATURES="
1723     as_dn_directive
1724     as_func
1725     asm_mod_q
1726     attribute_may_alias
1727     attribute_packed
1728     ebp_available
1729     ebx_available
1730     gnu_as
1731     gnu_windres
1732     ibm_asm
1733     inline_asm_labels
1734     inline_asm_nonlocal_labels
1735     inline_asm_direct_symbol_refs
1736     pragma_deprecated
1737     rsync_contimeout
1738     symver_asm_label
1739     symver_gnu_asm
1740     vfp_args
1741     xform_asm
1742     xmm_clobbers
1743 "
1744
1745 TYPES_LIST="
1746     socklen_t
1747     struct_addrinfo
1748     struct_group_source_req
1749     struct_ip_mreq_source
1750     struct_ipv6_mreq
1751     struct_pollfd
1752     struct_rusage_ru_maxrss
1753     struct_sctp_event_subscribe
1754     struct_sockaddr_in6
1755     struct_sockaddr_sa_len
1756     struct_sockaddr_storage
1757     struct_stat_st_mtim_tv_nsec
1758     struct_v4l2_frmivalenum_discrete
1759 "
1760
1761 HAVE_LIST="
1762     $ARCH_EXT_LIST
1763     $(add_suffix _external $ARCH_EXT_LIST)
1764     $(add_suffix _inline   $ARCH_EXT_LIST)
1765     $ARCH_FEATURES
1766     $ATOMICS_LIST
1767     $BUILTIN_LIST
1768     $HAVE_LIST_CMDLINE
1769     $HAVE_LIST_PUB
1770     $HEADERS_LIST
1771     $MATH_FUNCS
1772     $SYSTEM_FUNCS
1773     $THREADS_LIST
1774     $TOOLCHAIN_FEATURES
1775     $TYPES_LIST
1776     atomics_native
1777     dos_paths
1778     dxva2api_cobj
1779     dxva2_lib
1780     libc_msvcrt
1781     libdc1394_1
1782     libdc1394_2
1783     makeinfo
1784     perl
1785     pod2man
1786     sdl
1787     texi2html
1788     threads
1789     vdpau_x11
1790     xlib
1791 "
1792
1793 # options emitted with CONFIG_ prefix but not available on the command line
1794 CONFIG_EXTRA="
1795     aandcttables
1796     ac3dsp
1797     audio_frame_queue
1798     cabac
1799     dsputil
1800     exif
1801     frame_thread_encoder
1802     gcrypt
1803     golomb
1804     gplv3
1805     h263dsp
1806     h264chroma
1807     h264dsp
1808     h264pred
1809     h264qpel
1810     hpeldsp
1811     huffman
1812     huffyuvdsp
1813     huffyuvencdsp
1814     intrax8
1815     lgplv3
1816     llauddsp
1817     llviddsp
1818     lpc
1819     mpegaudio
1820     mpegaudiodsp
1821     mpegvideo
1822     mpegvideoenc
1823     nettle
1824     qpeldsp
1825     rangecoder
1826     riffdec
1827     riffenc
1828     rtpdec
1829     rtpenc_chain
1830     sinewin
1831     tpeldsp
1832     videodsp
1833     vp3dsp
1834 "
1835
1836 CMDLINE_SELECT="
1837     $ARCH_EXT_LIST
1838     $CONFIG_LIST
1839     $HAVE_LIST_CMDLINE
1840     $THREADS_LIST
1841     asm
1842     cross_compile
1843     debug
1844     extra_warnings
1845     logging
1846     lto
1847     optimizations
1848     rpath
1849     stripping
1850 "
1851
1852 PATHS_LIST="
1853     bindir
1854     datadir
1855     docdir
1856     incdir
1857     libdir
1858     mandir
1859     prefix
1860     shlibdir
1861 "
1862
1863 CMDLINE_SET="
1864     $PATHS_LIST
1865     ar
1866     arch
1867     as
1868     assert_level
1869     build_suffix
1870     cc
1871     cpu
1872     cross_prefix
1873     cxx
1874     dep_cc
1875     extra_version
1876     gas
1877     host_cc
1878     host_cflags
1879     host_ld
1880     host_ldflags
1881     host_libs
1882     host_os
1883     install
1884     ld
1885     logfile
1886     malloc_prefix
1887     nm
1888     optflags
1889     pkg_config
1890     pkg_config_flags
1891     progs_suffix
1892     random_seed
1893     ranlib
1894     samples
1895     strip
1896     sws_max_filter_size
1897     sysinclude
1898     sysroot
1899     target_exec
1900     target_os
1901     target_path
1902     target_samples
1903     tempprefix
1904     toolchain
1905     valgrind
1906     yasmexe
1907 "
1908
1909 CMDLINE_APPEND="
1910     extra_cflags
1911     extra_cxxflags
1912     host_cppflags
1913 "
1914
1915 # code dependency declarations
1916
1917 # architecture extensions
1918
1919 armv5te_deps="arm"
1920 armv6_deps="arm"
1921 armv6t2_deps="arm"
1922 armv8_deps="aarch64"
1923 neon_deps_any="aarch64 arm"
1924 vfp_deps_any="aarch64 arm"
1925 vfpv3_deps="vfp"
1926
1927 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1928
1929 mipsfpu_deps="mips"
1930 mips32r2_deps="mips"
1931 mipsdspr1_deps="mips"
1932 mipsdspr2_deps="mips"
1933
1934 altivec_deps="ppc"
1935 ppc4xx_deps="ppc"
1936
1937 cpunop_deps="i686"
1938 x86_64_select="i686"
1939 x86_64_suggest="fast_cmov"
1940
1941 amd3dnow_deps="mmx"
1942 amd3dnowext_deps="amd3dnow"
1943 i686_deps="x86"
1944 mmx_deps="x86"
1945 mmxext_deps="mmx"
1946 sse_deps="mmxext"
1947 sse2_deps="sse"
1948 sse3_deps="sse2"
1949 ssse3_deps="sse3"
1950 sse4_deps="ssse3"
1951 sse42_deps="sse4"
1952 avx_deps="sse42"
1953 xop_deps="avx"
1954 fma3_deps="avx"
1955 fma4_deps="avx"
1956 avx2_deps="avx"
1957
1958 mmx_external_deps="yasm"
1959 mmx_inline_deps="inline_asm"
1960 mmx_suggest="mmx_external mmx_inline"
1961
1962 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1963     eval dep=\$${ext}_deps
1964     eval ${ext}_external_deps='"${dep}_external"'
1965     eval ${ext}_inline_deps='"${dep}_inline"'
1966     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1967 done
1968
1969 aligned_stack_if_any="aarch64 ppc x86"
1970 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1971 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1972 fast_unaligned_if_any="aarch64 ppc x86"
1973
1974 need_memalign="altivec neon sse"
1975
1976 # system capabilities
1977
1978 symver_if_any="symver_asm_label symver_gnu_asm"
1979
1980 # threading support
1981 atomics_gcc_if="sync_val_compare_and_swap"
1982 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1983 atomics_win32_if="MemoryBarrier"
1984 atomics_native_if_any="$ATOMICS_LIST"
1985 w32threads_deps="atomics_native"
1986 threads_if_any="$THREADS_LIST"
1987
1988 # subsystems
1989 dct_select="rdft"
1990 error_resilience_select="dsputil"
1991 frame_thread_encoder_deps="encoders threads"
1992 mdct_select="fft"
1993 rdft_select="fft"
1994 mpegaudio_select="mpegaudiodsp"
1995 mpegaudiodsp_select="dct"
1996 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1997 mpegvideoenc_select="dsputil mpegvideo qpeldsp"
1998
1999 # decoders / encoders
2000 aac_decoder_select="mdct sinewin"
2001 aac_encoder_select="audio_frame_queue mdct sinewin"
2002 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2003 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
2004 ac3_fixed_decoder_select="mdct ac3dsp ac3_parser dsputil"
2005 ac3_encoder_select="mdct ac3dsp dsputil"
2006 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
2007 aic_decoder_select="dsputil golomb"
2008 alac_encoder_select="lpc"
2009 als_decoder_select="dsputil"
2010 amrnb_decoder_select="lsp"
2011 amrwb_decoder_select="lsp"
2012 amv_decoder_select="sp5x_decoder exif"
2013 amv_encoder_select="aandcttables"
2014 ape_decoder_select="dsputil llauddsp"
2015 asv1_decoder_select="dsputil"
2016 asv1_encoder_select="dsputil"
2017 asv2_decoder_select="dsputil"
2018 asv2_encoder_select="dsputil"
2019 atrac1_decoder_select="mdct sinewin"
2020 atrac3_decoder_select="mdct"
2021 atrac3p_decoder_select="mdct sinewin"
2022 avrn_decoder_select="exif"
2023 bink_decoder_select="dsputil hpeldsp"
2024 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2025 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2026 cavs_decoder_select="dsputil golomb h264chroma qpeldsp videodsp"
2027 cllc_decoder_select="dsputil"
2028 comfortnoise_encoder_select="lpc"
2029 cook_decoder_select="dsputil mdct sinewin"
2030 cscd_decoder_select="lzo"
2031 cscd_decoder_suggest="zlib"
2032 dca_decoder_select="mdct"
2033 dirac_decoder_select="dsputil dwt golomb videodsp"
2034 dnxhd_decoder_select="dsputil"
2035 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
2036 dvvideo_decoder_select="dsputil"
2037 dvvideo_encoder_select="dsputil"
2038 dxa_decoder_select="zlib"
2039 eac3_decoder_select="ac3_decoder"
2040 eac3_encoder_select="ac3_encoder"
2041 eamad_decoder_select="aandcttables dsputil mpegvideo"
2042 eatgq_decoder_select="aandcttables"
2043 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
2044 exr_decoder_select="zlib"
2045 ffv1_decoder_select="golomb rangecoder"
2046 ffv1_encoder_select="rangecoder"
2047 ffvhuff_decoder_select="huffyuv_decoder"
2048 ffvhuff_encoder_select="huffyuv_encoder"
2049 fic_decoder_select="golomb"
2050 flac_decoder_select="golomb"
2051 flac_encoder_select="dsputil golomb lpc"
2052 flashsv_decoder_select="zlib"
2053 flashsv_encoder_select="zlib"
2054 flashsv2_encoder_select="zlib"
2055 flashsv2_decoder_select="zlib"
2056 flv_decoder_select="h263_decoder"
2057 flv_encoder_select="h263_encoder"
2058 fourxm_decoder_select="dsputil"
2059 fraps_decoder_select="dsputil huffman"
2060 g2m_decoder_select="dsputil zlib"
2061 g729_decoder_select="dsputil"
2062 h261_decoder_select="error_resilience mpegvideo"
2063 h261_encoder_select="aandcttables mpegvideoenc"
2064 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo qpeldsp"
2065 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2066 h263i_decoder_select="h263_decoder"
2067 h263p_encoder_select="h263_encoder"
2068 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2069 h264_decoder_suggest="error_resilience"
2070 hevc_decoder_select="cabac dsputil golomb videodsp"
2071 huffyuv_decoder_select="dsputil huffyuvdsp llviddsp"
2072 huffyuv_encoder_select="dsputil huffman huffyuvencdsp llviddsp"
2073 iac_decoder_select="imc_decoder"
2074 imc_decoder_select="dsputil fft mdct sinewin"
2075 indeo3_decoder_select="hpeldsp"
2076 interplay_video_decoder_select="hpeldsp"
2077 jpegls_decoder_select="golomb mjpeg_decoder"
2078 jpegls_encoder_select="golomb"
2079 jv_decoder_select="dsputil"
2080 lagarith_decoder_select="huffyuvdsp"
2081 ljpeg_encoder_select="aandcttables mpegvideoenc"
2082 loco_decoder_select="golomb"
2083 mdec_decoder_select="dsputil error_resilience mpegvideo"
2084 metasound_decoder_select="lsp mdct sinewin"
2085 mimic_decoder_select="dsputil hpeldsp"
2086 mjpeg_decoder_select="dsputil hpeldsp exif"
2087 mjpeg_encoder_select="aandcttables mpegvideoenc"
2088 mjpegb_decoder_select="mjpeg_decoder"
2089 mlp_decoder_select="mlp_parser"
2090 motionpixels_decoder_select="dsputil"
2091 mp1_decoder_select="mpegaudio"
2092 mp1float_decoder_select="mpegaudio"
2093 mp2_decoder_select="mpegaudio"
2094 mp2float_decoder_select="mpegaudio"
2095 mp3_decoder_select="mpegaudio"
2096 mp3adu_decoder_select="mpegaudio"
2097 mp3adufloat_decoder_select="mpegaudio"
2098 mp3float_decoder_select="mpegaudio"
2099 mp3on4_decoder_select="mpegaudio"
2100 mp3on4float_decoder_select="mpegaudio"
2101 mpc7_decoder_select="dsputil mpegaudiodsp"
2102 mpc8_decoder_select="mpegaudiodsp"
2103 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2104 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2105 mpeg1video_decoder_select="error_resilience mpegvideo"
2106 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2107 mpeg2video_decoder_select="error_resilience mpegvideo"
2108 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2109 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2110 mpeg4_encoder_select="h263_encoder"
2111 msmpeg4v1_decoder_select="h263_decoder"
2112 msmpeg4v2_decoder_select="h263_decoder"
2113 msmpeg4v2_encoder_select="h263_encoder"
2114 msmpeg4v3_decoder_select="h263_decoder"
2115 msmpeg4v3_encoder_select="h263_encoder"
2116 mss2_decoder_select="error_resilience qpeldsp vc1_decoder"
2117 mxpeg_decoder_select="mjpeg_decoder"
2118 nellymoser_decoder_select="mdct sinewin"
2119 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2120 nuv_decoder_select="dsputil lzo"
2121 on2avc_decoder_select="mdct"
2122 opus_decoder_deps="swresample"
2123 png_decoder_select="zlib"
2124 png_encoder_select="huffyuvencdsp zlib"
2125 prores_decoder_select="dsputil"
2126 prores_encoder_select="dsputil"
2127 qcelp_decoder_select="lsp"
2128 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2129 ra_144_encoder_select="audio_frame_queue lpc"
2130 ralf_decoder_select="golomb"
2131 rawvideo_decoder_select="dsputil"
2132 rtjpeg_decoder_select="dsputil"
2133 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2134 rv10_encoder_select="h263_encoder"
2135 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2136 rv20_encoder_select="h263_encoder"
2137 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2138 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2139 shorten_decoder_select="golomb"
2140 sipr_decoder_select="lsp"
2141 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2142 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2143 sonic_decoder_select="golomb rangecoder"
2144 sonic_encoder_select="golomb rangecoder"
2145 sonic_ls_encoder_select="golomb rangecoder"
2146 sp5x_decoder_select="mjpeg_decoder"
2147 svq1_decoder_select="hpeldsp"
2148 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2149 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2150 svq3_decoder_suggest="zlib"
2151 tak_decoder_select="dsputil"
2152 theora_decoder_select="vp3_decoder"
2153 thp_decoder_select="mjpeg_decoder"
2154 tiff_decoder_suggest="zlib"
2155 tiff_encoder_suggest="zlib"
2156 truehd_decoder_select="mlp_parser"
2157 truemotion2_decoder_select="dsputil"
2158 truespeech_decoder_select="dsputil"
2159 tscc_decoder_select="zlib"
2160 twinvq_decoder_select="mdct lsp sinewin"
2161 utvideo_decoder_select="dsputil"
2162 utvideo_encoder_select="dsputil huffman huffyuvencdsp"
2163 vble_decoder_select="huffyuvdsp"
2164 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8 qpeldsp"
2165 vc1image_decoder_select="vc1_decoder"
2166 vorbis_decoder_select="mdct"
2167 vorbis_encoder_select="mdct"
2168 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2169 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2170 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2171 vp6a_decoder_select="vp6_decoder"
2172 vp6f_decoder_select="vp6_decoder"
2173 vp7_decoder_select="h264pred videodsp"
2174 vp8_decoder_select="h264pred videodsp"
2175 vp9_decoder_select="videodsp vp9_parser"
2176 webp_decoder_select="vp8_decoder"
2177 wmalossless_decoder_select="llauddsp"
2178 wmapro_decoder_select="mdct sinewin"
2179 wmav1_decoder_select="mdct sinewin"
2180 wmav1_encoder_select="mdct sinewin"
2181 wmav2_decoder_select="mdct sinewin"
2182 wmav2_encoder_select="mdct sinewin"
2183 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2184 wmv1_decoder_select="h263_decoder"
2185 wmv1_encoder_select="h263_encoder"
2186 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2187 wmv2_encoder_select="h263_encoder"
2188 wmv3_decoder_select="vc1_decoder"
2189 wmv3image_decoder_select="wmv3_decoder"
2190 zerocodec_decoder_select="zlib"
2191 zlib_decoder_select="zlib"
2192 zlib_encoder_select="zlib"
2193 zmbv_decoder_select="zlib"
2194 zmbv_encoder_select="zlib"
2195
2196 # hardware accelerators
2197 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2198 dxva2_deps="dxva2api_h"
2199 vaapi_deps="va_va_h"
2200 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2201 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2202 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2203 xvmc_deps="X11_extensions_XvMClib_h"
2204
2205 h263_vaapi_hwaccel_deps="vaapi"
2206 h263_vaapi_hwaccel_select="h263_decoder"
2207 h263_vdpau_hwaccel_deps="vdpau"
2208 h263_vdpau_hwaccel_select="h263_decoder"
2209 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2210 h264_dxva2_hwaccel_deps="dxva2"
2211 h264_dxva2_hwaccel_select="h264_decoder"
2212 h264_vaapi_hwaccel_deps="vaapi"
2213 h264_vaapi_hwaccel_select="h264_decoder"
2214 h264_vda_decoder_deps="vda"
2215 h264_vda_decoder_select="h264_decoder"
2216 h264_vda_hwaccel_deps="vda"
2217 h264_vda_hwaccel_select="h264_decoder"
2218 h264_vda_old_hwaccel_deps="vda"
2219 h264_vda_old_hwaccel_select="h264_decoder"
2220 h264_vdpau_decoder_deps="vdpau"
2221 h264_vdpau_decoder_select="h264_decoder"
2222 h264_vdpau_hwaccel_deps="vdpau"
2223 h264_vdpau_hwaccel_select="h264_decoder"
2224 mpeg_vdpau_decoder_deps="vdpau"
2225 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2226 mpeg_xvmc_hwaccel_deps="xvmc"
2227 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2228 mpeg1_vdpau_decoder_deps="vdpau"
2229 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2230 mpeg1_vdpau_hwaccel_deps="vdpau"
2231 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2232 mpeg1_xvmc_hwaccel_deps="xvmc"
2233 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2234 mpeg2_crystalhd_decoder_select="crystalhd"
2235 mpeg2_dxva2_hwaccel_deps="dxva2"
2236 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_vaapi_hwaccel_deps="vaapi"
2238 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_vdpau_hwaccel_deps="vdpau"
2240 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2241 mpeg2_xvmc_hwaccel_deps="xvmc"
2242 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2243 mpeg4_crystalhd_decoder_select="crystalhd"
2244 mpeg4_vaapi_hwaccel_deps="vaapi"
2245 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2246 mpeg4_vdpau_decoder_deps="vdpau"
2247 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2248 mpeg4_vdpau_hwaccel_deps="vdpau"
2249 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2250 msmpeg4_crystalhd_decoder_select="crystalhd"
2251 vc1_crystalhd_decoder_select="crystalhd"
2252 vc1_dxva2_hwaccel_deps="dxva2"
2253 vc1_dxva2_hwaccel_select="vc1_decoder"
2254 vc1_vaapi_hwaccel_deps="vaapi"
2255 vc1_vaapi_hwaccel_select="vc1_decoder"
2256 vc1_vdpau_decoder_deps="vdpau"
2257 vc1_vdpau_decoder_select="vc1_decoder"
2258 vc1_vdpau_hwaccel_deps="vdpau"
2259 vc1_vdpau_hwaccel_select="vc1_decoder"
2260 wmv3_crystalhd_decoder_select="crystalhd"
2261 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2262 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2263 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2264 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2265
2266 # parsers
2267 h264_parser_select="h264_decoder"
2268 hevc_parser_select="hevc_decoder"
2269 mpegvideo_parser_select="error_resilience mpegvideo"
2270 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2271 vc1_parser_select="mpegvideo vc1_decoder"
2272
2273 # external libraries
2274 libaacplus_encoder_deps="libaacplus"
2275 libcelt_decoder_deps="libcelt"
2276 libfaac_encoder_deps="libfaac"
2277 libfaac_encoder_select="audio_frame_queue"
2278 libfdk_aac_decoder_deps="libfdk_aac"
2279 libfdk_aac_encoder_deps="libfdk_aac"
2280 libfdk_aac_encoder_select="audio_frame_queue"
2281 libgme_demuxer_deps="libgme"
2282 libgsm_decoder_deps="libgsm"
2283 libgsm_encoder_deps="libgsm"
2284 libgsm_ms_decoder_deps="libgsm"
2285 libgsm_ms_encoder_deps="libgsm"
2286 libilbc_decoder_deps="libilbc"
2287 libilbc_encoder_deps="libilbc"
2288 libmodplug_demuxer_deps="libmodplug"
2289 libmp3lame_encoder_deps="libmp3lame"
2290 libmp3lame_encoder_select="audio_frame_queue"
2291 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2292 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2293 libopencore_amrnb_encoder_select="audio_frame_queue"
2294 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2295 libopenjpeg_decoder_deps="libopenjpeg"
2296 libopenjpeg_encoder_deps="libopenjpeg"
2297 libopus_decoder_deps="libopus"
2298 libopus_encoder_deps="libopus"
2299 libopus_encoder_select="audio_frame_queue"
2300 libquvi_demuxer_deps="libquvi"
2301 libschroedinger_decoder_deps="libschroedinger"
2302 libschroedinger_encoder_deps="libschroedinger"
2303 libshine_encoder_deps="libshine"
2304 libshine_encoder_select="audio_frame_queue"
2305 libspeex_decoder_deps="libspeex"
2306 libspeex_encoder_deps="libspeex"
2307 libspeex_encoder_select="audio_frame_queue"
2308 libstagefright_h264_decoder_deps="libstagefright_h264"
2309 libtheora_encoder_deps="libtheora"
2310 libtwolame_encoder_deps="libtwolame"
2311 libvo_aacenc_encoder_deps="libvo_aacenc"
2312 libvo_aacenc_encoder_select="audio_frame_queue"
2313 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2314 libvorbis_decoder_deps="libvorbis"
2315 libvorbis_encoder_deps="libvorbis"
2316 libvorbis_encoder_select="audio_frame_queue"
2317 libvpx_vp8_decoder_deps="libvpx"
2318 libvpx_vp8_encoder_deps="libvpx"
2319 libvpx_vp9_decoder_deps="libvpx"
2320 libvpx_vp9_encoder_deps="libvpx"
2321 libwavpack_encoder_deps="libwavpack"
2322 libwebp_encoder_deps="libwebp"
2323 libx264_encoder_deps="libx264"
2324 libx264rgb_encoder_deps="libx264"
2325 libx265_encoder_deps="libx265"
2326 libxavs_encoder_deps="libxavs"
2327 libxvid_encoder_deps="libxvid"
2328 libutvideo_decoder_deps="libutvideo"
2329 libutvideo_encoder_deps="libutvideo"
2330 libzvbi_teletext_decoder_deps="libzvbi"
2331
2332 # demuxers / muxers
2333 ac3_demuxer_select="ac3_parser"
2334 asf_demuxer_select="riffdec"
2335 asf_muxer_select="riffenc"
2336 asf_stream_muxer_select="asf_muxer"
2337 avi_demuxer_select="riffdec exif"
2338 avi_muxer_select="riffenc"
2339 avisynth_demuxer_deps="avisynth"
2340 avisynth_demuxer_select="riffdec"
2341 caf_demuxer_select="riffdec"
2342 dirac_demuxer_select="dirac_parser"
2343 dts_demuxer_select="dca_parser"
2344 dtshd_demuxer_select="dca_parser"
2345 dxa_demuxer_select="riffdec"
2346 eac3_demuxer_select="ac3_parser"
2347 f4v_muxer_select="mov_muxer"
2348 flac_demuxer_select="flac_parser"
2349 hds_muxer_select="flv_muxer"
2350 hls_muxer_select="mpegts_muxer"
2351 image2_alias_pix_demuxer_select="image2_demuxer"
2352 image2_brender_pix_demuxer_select="image2_demuxer"
2353 ipod_muxer_select="mov_muxer"
2354 ismv_muxer_select="mov_muxer"
2355 libnut_demuxer_deps="libnut"
2356 libnut_muxer_deps="libnut"
2357 matroska_audio_muxer_select="matroska_muxer"
2358 matroska_demuxer_select="riffdec"
2359 matroska_demuxer_suggest="bzlib lzo zlib"
2360 matroska_muxer_select="riffenc"
2361 mmf_muxer_select="riffenc"
2362 mov_demuxer_select="riffdec"
2363 mov_demuxer_suggest="zlib"
2364 mov_muxer_select="riffenc rtpenc_chain"
2365 mp3_demuxer_select="mpegaudio_parser"
2366 mp4_muxer_select="mov_muxer"
2367 mpegts_muxer_select="adts_muxer latm_muxer"
2368 mpegtsraw_demuxer_select="mpegts_demuxer"
2369 mxf_d10_muxer_select="mxf_muxer"
2370 nut_muxer_select="riffenc"
2371 nuv_demuxer_select="riffdec"
2372 ogg_demuxer_select="golomb"
2373 psp_muxer_select="mov_muxer"
2374 rtp_demuxer_select="sdp_demuxer"
2375 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2376 rtsp_demuxer_select="http_protocol rtpdec"
2377 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2378 sap_demuxer_select="sdp_demuxer"
2379 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2380 sdp_demuxer_select="rtpdec"
2381 smoothstreaming_muxer_select="ismv_muxer"
2382 spdif_muxer_select="aac_parser"
2383 tak_demuxer_select="tak_parser"
2384 tg2_muxer_select="mov_muxer"
2385 tgp_muxer_select="mov_muxer"
2386 vobsub_demuxer_select="mpegps_demuxer"
2387 w64_demuxer_select="wav_demuxer"
2388 w64_muxer_select="wav_muxer"
2389 wav_demuxer_select="riffdec"
2390 wav_muxer_select="riffenc"
2391 webm_muxer_select="riffenc"
2392 wtv_demuxer_select="riffdec"
2393 wtv_muxer_select="riffenc"
2394 xmv_demuxer_select="riffdec"
2395 xwma_demuxer_select="riffdec"
2396
2397 # indevs / outdevs
2398 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2399 alsa_outdev_deps="alsa_asoundlib_h"
2400 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2401 avfoundation_indev_select="avfoundation"
2402 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2403 caca_outdev_deps="libcaca"
2404 decklink_outdev_deps="decklink pthreads"
2405 decklink_outdev_extralibs="-lstdc++"
2406 dshow_indev_deps="IBaseFilter"
2407 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2408 dv1394_indev_deps="dv1394"
2409 dv1394_indev_select="dv_demuxer"
2410 fbdev_indev_deps="linux_fb_h"
2411 fbdev_outdev_deps="linux_fb_h"
2412 gdigrab_indev_deps="CreateDIBSection"
2413 gdigrab_indev_extralibs="-lgdi32"
2414 gdigrab_indev_select="bmp_decoder"
2415 iec61883_indev_deps="libiec61883"
2416 jack_indev_deps="jack_jack_h sem_timedwait"
2417 lavfi_indev_deps="avfilter"
2418 libcdio_indev_deps="libcdio"
2419 libdc1394_indev_deps="libdc1394"
2420 libv4l2_indev_deps="libv4l2"
2421 openal_indev_deps="openal"
2422 opengl_outdev_deps="opengl"
2423 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2424 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2425 pulse_indev_deps="libpulse"
2426 pulse_outdev_deps="libpulse"
2427 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2428 qtkit_indev_select="qtkit"
2429 sdl_outdev_deps="sdl"
2430 sndio_indev_deps="sndio_h"
2431 sndio_outdev_deps="sndio_h"
2432 v4l_indev_deps="linux_videodev_h"
2433 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2434 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2435 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2436 vfwcap_indev_extralibs="-lavicap32"
2437 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2438 xv_outdev_extralibs="-lXv -lX11 -lXext"
2439 x11grab_indev_deps="x11grab"
2440
2441 # protocols
2442 bluray_protocol_deps="libbluray"
2443 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2444 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2445 ffrtmpcrypt_protocol_select="tcp_protocol"
2446 ffrtmphttp_protocol_deps="!librtmp_protocol"
2447 ffrtmphttp_protocol_select="http_protocol"
2448 ftp_protocol_select="tcp_protocol"
2449 gopher_protocol_select="network"
2450 http_protocol_select="tcp_protocol"
2451 httpproxy_protocol_select="tcp_protocol"
2452 https_protocol_select="tls_protocol"
2453 librtmp_protocol_deps="librtmp"
2454 librtmpe_protocol_deps="librtmp"
2455 librtmps_protocol_deps="librtmp"
2456 librtmpt_protocol_deps="librtmp"
2457 librtmpte_protocol_deps="librtmp"
2458 libssh_protocol_deps="libssh"
2459 mmsh_protocol_select="http_protocol"
2460 mmst_protocol_select="network"
2461 rtmp_protocol_deps="!librtmp_protocol"
2462 rtmp_protocol_select="tcp_protocol"
2463 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2464 rtmps_protocol_deps="!librtmp_protocol"
2465 rtmps_protocol_select="tls_protocol"
2466 rtmpt_protocol_select="ffrtmphttp_protocol"
2467 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2468 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2469 rtp_protocol_select="udp_protocol"
2470 sctp_protocol_deps="struct_sctp_event_subscribe"
2471 sctp_protocol_select="network"
2472 srtp_protocol_select="rtp_protocol"
2473 tcp_protocol_select="network"
2474 tls_protocol_deps_any="openssl gnutls"
2475 tls_protocol_select="tcp_protocol"
2476 udp_protocol_select="network"
2477 unix_protocol_deps="sys_un_h"
2478 unix_protocol_select="network"
2479
2480 # filters
2481 aconvert_filter_deps="swresample"
2482 amovie_filter_deps="avcodec avformat"
2483 aresample_filter_deps="swresample"
2484 ass_filter_deps="libass"
2485 asyncts_filter_deps="avresample"
2486 atempo_filter_deps="avcodec"
2487 atempo_filter_select="rdft"
2488 azmq_filter_deps="libzmq"
2489 blackframe_filter_deps="gpl"
2490 boxblur_filter_deps="gpl"
2491 bs2b_filter_deps="libbs2b"
2492 colormatrix_filter_deps="gpl"
2493 cropdetect_filter_deps="gpl"
2494 dctdnoiz_filter_deps="avcodec"
2495 dctdnoiz_filter_select="dct"
2496 delogo_filter_deps="gpl"
2497 deshake_filter_deps="avcodec"
2498 deshake_filter_select="dsputil"
2499 drawtext_filter_deps="libfreetype"
2500 ebur128_filter_deps="gpl"
2501 flite_filter_deps="libflite"
2502 frei0r_filter_deps="frei0r dlopen"
2503 frei0r_filter_extralibs='$ldl'
2504 frei0r_src_filter_deps="frei0r dlopen"
2505 frei0r_src_filter_extralibs='$ldl'
2506 geq_filter_deps="gpl"
2507 histeq_filter_deps="gpl"
2508 hqdn3d_filter_deps="gpl"
2509 interlace_filter_deps="gpl"
2510 kerndeint_filter_deps="gpl"
2511 ladspa_filter_deps="ladspa dlopen"
2512 ladspa_filter_extralibs='$ldl'
2513 mcdeint_filter_deps="avcodec gpl"
2514 movie_filter_deps="avcodec avformat"
2515 mp_filter_deps="gpl avcodec swscale inline_asm"
2516 mpdecimate_filter_deps="gpl avcodec"
2517 mptestsrc_filter_deps="gpl"
2518 negate_filter_deps="lut_filter"
2519 perspective_filter_deps="gpl"
2520 ocv_filter_deps="libopencv"
2521 owdenoise_filter_deps="gpl"
2522 pan_filter_deps="swresample"
2523 phase_filter_deps="gpl"
2524 pp_filter_deps="gpl postproc"
2525 pullup_filter_deps="gpl"
2526 removelogo_filter_deps="avcodec avformat swscale"
2527 resample_filter_deps="avresample"
2528 sab_filter_deps="gpl swscale"
2529 scale_filter_deps="swscale"
2530 smartblur_filter_deps="gpl swscale"
2531 showspectrum_filter_deps="avcodec"
2532 showspectrum_filter_select="rdft"
2533 spp_filter_deps="gpl avcodec"
2534 spp_filter_select="fft"
2535 stereo3d_filter_deps="gpl"
2536 subtitles_filter_deps="avformat avcodec libass"
2537 super2xsai_filter_deps="gpl"
2538 tinterlace_filter_deps="gpl"
2539 vidstabdetect_filter_deps="libvidstab"
2540 vidstabtransform_filter_deps="libvidstab"
2541 pixfmts_super2xsai_test_deps="super2xsai_filter"
2542 tinterlace_merge_test_deps="tinterlace_filter"
2543 tinterlace_pad_test_deps="tinterlace_filter"
2544 zmq_filter_deps="libzmq"
2545 zoompan_filter_deps="swscale"
2546
2547 # examples
2548 avio_reading="avformat avcodec avutil"
2549 avcodec_example_deps="avcodec avutil"
2550 demuxing_decoding_example_deps="avcodec avformat avutil"
2551 filter_audio_example_deps="avfilter avutil"
2552 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2553 filtering_video_example_deps="avfilter avcodec avformat avutil"
2554 metadata_example_deps="avformat avutil"
2555 muxing_example_deps="avcodec avformat avutil swscale"
2556 remuxing_example_deps="avcodec avformat avutil"
2557 resampling_audio_example_deps="avutil swresample"
2558 scaling_video_example_deps="avutil swscale"
2559 transcode_aac_example_deps="avcodec avformat swresample"
2560 transcoding_example_deps="avfilter avcodec avformat avutil"
2561
2562 # libraries, in linking order
2563 avcodec_deps="avutil"
2564 avdevice_deps="avformat avcodec avutil"
2565 avfilter_deps="avutil"
2566 avformat_deps="avcodec avutil"
2567 avresample_deps="avutil"
2568 postproc_deps="avutil gpl"
2569 swresample_deps="avutil"
2570 swscale_deps="avutil"
2571
2572 # programs
2573 ffmpeg_deps="avcodec avfilter avformat swresample"
2574 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2575                null_filter
2576                setpts_filter trim_filter"
2577 ffplay_deps="avcodec avformat swscale swresample sdl"
2578 ffplay_libs='$sdl_libs'
2579 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2580 ffprobe_deps="avcodec avformat"
2581 ffserver_deps="avformat fork sarestart"
2582 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2583
2584 # documentation
2585 podpages_deps="perl"
2586 manpages_deps="perl pod2man"
2587 htmlpages_deps="perl texi2html"
2588 txtpages_deps="perl makeinfo"
2589 doc_deps_any="manpages htmlpages podpages txtpages"
2590
2591 # default parameters
2592
2593 logfile="config.log"
2594
2595 # installation paths
2596 prefix_default="/usr/local"
2597 bindir_default='${prefix}/bin'
2598 datadir_default='${prefix}/share/ffmpeg'
2599 docdir_default='${prefix}/share/doc/ffmpeg'
2600 incdir_default='${prefix}/include'
2601 libdir_default='${prefix}/lib'
2602 mandir_default='${prefix}/share/man'
2603 shlibdir_default="$libdir_default"
2604
2605 # toolchain
2606 ar_default="ar"
2607 cc_default="gcc"
2608 cxx_default="g++"
2609 host_cc_default="gcc"
2610 cp_f="cp -f"
2611 install="install"
2612 ln_s="ln -s -f"
2613 nm_default="nm -g"
2614 objformat="elf"
2615 pkg_config_default=pkg-config
2616 ranlib_default="ranlib"
2617 strip_default="strip"
2618 yasmexe_default="yasm"
2619 windres_default="windres"
2620
2621 nogas=":"
2622
2623 # OS
2624 target_os_default=$(tolower $(uname -s))
2625 host_os=$target_os_default
2626
2627 # machine
2628 if test "$target_os_default" = aix; then
2629     arch_default=$(uname -p)
2630 else
2631     arch_default=$(uname -m)
2632 fi
2633 cpu="generic"
2634
2635 # configurable options
2636 enable $PROGRAM_LIST
2637 enable $DOCUMENT_LIST
2638 enable $EXAMPLE_LIST
2639 enable $(filter_out avresample $LIBRARY_LIST)
2640 enable stripping
2641
2642 enable asm
2643 enable debug
2644 enable doc
2645 enable optimizations
2646 enable runtime_cpudetect
2647 enable safe_bitstream_reader
2648 enable static
2649 enable swscale_alpha
2650
2651 sws_max_filter_size_default=256
2652 set_default sws_max_filter_size
2653
2654 # Enable hwaccels by default.
2655 enable dxva2 vaapi vda vdpau xvmc
2656 enable xlib
2657
2658 # build settings
2659 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2660 LIBPREF="lib"
2661 LIBSUF=".a"
2662 FULLNAME='$(NAME)$(BUILDSUF)'
2663 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2664 SLIBPREF="lib"
2665 SLIBSUF=".so"
2666 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2667 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2668 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2669 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2670 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2671 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2672
2673 asflags_filter=echo
2674 cflags_filter=echo
2675 ldflags_filter=echo
2676
2677 AS_C='-c'
2678 AS_O='-o $@'
2679 CC_C='-c'
2680 CC_E='-E -o $@'
2681 CC_O='-o $@'
2682 CXX_C='-c'
2683 CXX_O='-o $@'
2684 LD_O='-o $@'
2685 LD_LIB='-l%'
2686 LD_PATH='-L'
2687 HOSTCC_C='-c'
2688 HOSTCC_E='-E -o $@'
2689 HOSTCC_O='-o $@'
2690 HOSTLD_O='-o $@'
2691
2692 host_libs='-lm'
2693 host_cflags_filter=echo
2694 host_ldflags_filter=echo
2695
2696 target_path='$(CURDIR)'
2697
2698 # since the object filename is not given with the -MM flag, the compiler
2699 # is only able to print the basename, and we must add the path ourselves
2700 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2701 DEPFLAGS='-MM'
2702
2703 # find source path
2704 if test -f configure; then
2705     source_path=.
2706 else
2707     source_path=$(cd $(dirname "$0"); pwd)
2708     echo "$source_path" | grep -q '[[:blank:]]' &&
2709         die "Out of tree builds are impossible with whitespace in source path."
2710     test -e "$source_path/config.h" &&
2711         die "Out of tree builds are impossible with config.h in source dir."
2712 fi
2713
2714 for v in "$@"; do
2715     r=${v#*=}
2716     l=${v%"$r"}
2717     r=$(sh_quote "$r")
2718     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2719 done
2720
2721 find_things(){
2722     thing=$1
2723     pattern=$2
2724     file=$source_path/$3
2725     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2726 }
2727
2728 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2729 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2730 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2731 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2732 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2733 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2734 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2735 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2736 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2737 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2738 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2739
2740 ALL_COMPONENTS="
2741     $BSF_LIST
2742     $DECODER_LIST
2743     $DEMUXER_LIST
2744     $ENCODER_LIST
2745     $FILTER_LIST
2746     $HWACCEL_LIST
2747     $INDEV_LIST
2748     $MUXER_LIST
2749     $OUTDEV_LIST
2750     $PARSER_LIST
2751     $PROTOCOL_LIST
2752 "
2753
2754 for n in $COMPONENT_LIST; do
2755     v=$(toupper ${n%s})_LIST
2756     eval enable \$$v
2757     eval ${n}_if_any="\$$v"
2758 done
2759
2760 enable $ARCH_EXT_LIST
2761
2762 die_unknown(){
2763     echo "Unknown option \"$1\"."
2764     echo "See $0 --help for available options."
2765     exit 1
2766 }
2767
2768 print_3_columns() {
2769     cat | tr ' ' '\n' | sort | pr -r -3 -t
2770 }
2771
2772 show_list() {
2773     suffix=_$1
2774     shift
2775     echo $* | sed s/$suffix//g | print_3_columns
2776     exit 0
2777 }
2778
2779 rand_list(){
2780     IFS=', '
2781     set -- $*
2782     unset IFS
2783     for thing; do
2784         comp=${thing%:*}
2785         prob=${thing#$comp}
2786         prob=${prob#:}
2787         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2788         echo "prob ${prob:-0.5}"
2789         printf '%s\n' $comp
2790     done
2791 }
2792
2793 do_random(){
2794     action=$1
2795     shift
2796     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2797     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2798 }
2799
2800 for opt do
2801     optval="${opt#*=}"
2802     case "$opt" in
2803         --extra-ldflags=*)
2804             add_ldflags $optval
2805         ;;
2806         --extra-libs=*)
2807             add_extralibs $optval
2808         ;;
2809         --disable-devices)
2810             disable $INDEV_LIST $OUTDEV_LIST
2811         ;;
2812         --enable-debug=*)
2813             debuglevel="$optval"
2814         ;;
2815         --disable-programs)
2816             disable $PROGRAM_LIST
2817         ;;
2818         --disable-everything)
2819             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2820         ;;
2821         --disable-all)
2822             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2823             disable $LIBRARY_LIST $PROGRAM_LIST doc
2824         ;;
2825         --enable-random|--disable-random)
2826             action=${opt%%-random}
2827             do_random ${action#--} $COMPONENT_LIST
2828         ;;
2829         --enable-random=*|--disable-random=*)
2830             action=${opt%%-random=*}
2831             do_random ${action#--} $optval
2832         ;;
2833         --enable-*=*|--disable-*=*)
2834             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2835             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2836             eval list=\$$(toupper $thing)_LIST
2837             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2838             list=$(filter "$name" $list)
2839             [ "$list" = "" ] && warn "Option $opt did not match anything"
2840             $action $list
2841         ;;
2842         --enable-?*|--disable-?*)
2843             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2844             if is_in $option $COMPONENT_LIST; then
2845                 test $action = disable && action=unset
2846                 eval $action \$$(toupper ${option%s})_LIST
2847             elif is_in $option $CMDLINE_SELECT; then
2848                 $action $option
2849             else
2850                 die_unknown $opt
2851             fi
2852         ;;
2853         --list-*)
2854             NAME="${opt#--list-}"
2855             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2856             NAME=${NAME%s}
2857             eval show_list $NAME \$$(toupper $NAME)_LIST
2858         ;;
2859         --help|-h) show_help
2860         ;;
2861         --fatal-warnings) enable fatal_warnings
2862         ;;
2863         *)
2864             optname="${opt%%=*}"
2865             optname="${optname#--}"
2866             optname=$(echo "$optname" | sed 's/-/_/g')
2867             if is_in $optname $CMDLINE_SET; then
2868                 eval $optname='$optval'
2869             elif is_in $optname $CMDLINE_APPEND; then
2870                 append $optname "$optval"
2871             else
2872                 die_unknown $opt
2873             fi
2874         ;;
2875     esac
2876 done
2877
2878 disabled logging && logfile=/dev/null
2879
2880 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2881 set >> $logfile
2882
2883 test -n "$cross_prefix" && enable cross_compile
2884
2885 if enabled cross_compile; then
2886     test -n "$arch" && test -n "$target_os" ||
2887         die "Must specify target arch and OS when cross-compiling"
2888 fi
2889
2890 ar_default="${cross_prefix}${ar_default}"
2891 cc_default="${cross_prefix}${cc_default}"
2892 cxx_default="${cross_prefix}${cxx_default}"
2893 nm_default="${cross_prefix}${nm_default}"
2894 pkg_config_default="${cross_prefix}${pkg_config_default}"
2895 ranlib_default="${cross_prefix}${ranlib_default}"
2896 strip_default="${cross_prefix}${strip_default}"
2897 windres_default="${cross_prefix}${windres_default}"
2898
2899 sysinclude_default="${sysroot}/usr/include"
2900
2901 test -n "$valgrind" && toolchain="valgrind-memcheck"
2902
2903 case "$toolchain" in
2904     clang-asan)
2905         cc_default="clang"
2906         add_cflags  -fsanitize=address
2907         add_ldflags -fsanitize=address
2908     ;;
2909     clang-tsan)
2910         cc_default="clang"
2911         add_cflags  -fsanitize=thread -pie
2912         add_ldflags -fsanitize=thread -pie
2913     ;;
2914     clang-usan)
2915         cc_default="clang"
2916         add_cflags  -fsanitize=undefined
2917         add_ldflags -fsanitize=undefined
2918     ;;
2919     gcc-asan)
2920         cc_default="gcc"
2921         add_cflags  -fsanitize=address
2922         add_ldflags -fsanitize=address
2923     ;;
2924     gcc-tsan)
2925         cc_default="gcc"
2926         add_cflags  -fsanitize=thread -pie -fPIC
2927         add_ldflags -fsanitize=thread -pie -fPIC
2928     ;;
2929     gcc-usan)
2930         cc_default="gcc"
2931         add_cflags  -fsanitize=undefined
2932         add_ldflags -fsanitize=undefined
2933     ;;
2934     valgrind-massif)
2935         target_exec_default=${valgrind:-"valgrind"}
2936         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"
2937     ;;
2938     valgrind-memcheck)
2939         target_exec_default=${valgrind:-"valgrind"}
2940         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2941     ;;
2942     msvc)
2943         # Check whether the current MSVC version needs the C99 converter.
2944         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2945         # support enough of C99 to build ffmpeg. Default to the new
2946         # behaviour if the regexp was unable to match anything, since this
2947         # successfully parses the version number of existing supported
2948         # versions that require the converter (MSVC 2010 and 2012).
2949         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2950         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2951             cc_default="cl"
2952         else
2953             cc_default="c99wrap cl"
2954         fi
2955         ld_default="link"
2956         nm_default="dumpbin -symbols"
2957         ar_default="lib"
2958         target_os_default="win32"
2959         # Use a relative path for TMPDIR. This makes sure all the
2960         # ffconf temp files are written with a relative path, avoiding
2961         # issues with msys/win32 path conversion for MSVC parameters
2962         # such as -Fo<file> or -out:<file>.
2963         TMPDIR=.
2964     ;;
2965     icl)
2966         cc_default="icl"
2967         ld_default="xilink"
2968         nm_default="dumpbin -symbols"
2969         ar_default="xilib"
2970         target_os_default="win32"
2971         TMPDIR=.
2972     ;;
2973     gcov)
2974         add_cflags  -fprofile-arcs -ftest-coverage
2975         add_ldflags -fprofile-arcs -ftest-coverage
2976     ;;
2977     hardened)
2978         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2979         add_ldflags -Wl,-z,relro -Wl,-z,now
2980     ;;
2981     ?*)
2982         die "Unknown toolchain $toolchain"
2983     ;;
2984 esac
2985
2986 set_default arch cc cxx pkg_config ranlib strip sysinclude target_exec target_os yasmexe
2987 enabled cross_compile || host_cc_default=$cc
2988 set_default host_cc
2989
2990 if ! $pkg_config --version >/dev/null 2>&1; then
2991     warn "$pkg_config not found, library detection may fail."
2992     pkg_config=false
2993 fi
2994
2995 exesuf() {
2996     case $1 in
2997         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2998     esac
2999 }
3000
3001 EXESUF=$(exesuf $target_os)
3002 HOSTEXESUF=$(exesuf $host_os)
3003
3004 # set temporary file name
3005 : ${TMPDIR:=$TEMPDIR}
3006 : ${TMPDIR:=$TMP}
3007 : ${TMPDIR:=/tmp}
3008
3009 if [ -n "$tempprefix" ] ; then
3010     mktemp(){
3011         echo $tempprefix.${HOSTNAME}.${UID}
3012     }
3013 elif ! check_cmd mktemp -u XXXXXX; then
3014     # simple replacement for missing mktemp
3015     # NOT SAFE FOR GENERAL USE
3016     mktemp(){
3017         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3018     }
3019 fi
3020
3021 tmpfile(){
3022     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3023         (set -C; exec > $tmp) 2>/dev/null ||
3024         die "Unable to create temporary file in $TMPDIR."
3025     append TMPFILES $tmp
3026     eval $1=$tmp
3027 }
3028
3029 trap 'rm -f -- $TMPFILES' EXIT
3030
3031 tmpfile TMPASM .asm
3032 tmpfile TMPC   .c
3033 tmpfile TMPCPP .cpp
3034 tmpfile TMPE   $EXESUF
3035 tmpfile TMPH   .h
3036 tmpfile TMPM   .m
3037 tmpfile TMPO   .o
3038 tmpfile TMPS   .S
3039 tmpfile TMPSH  .sh
3040 tmpfile TMPV   .ver
3041
3042 unset -f mktemp
3043
3044 chmod +x $TMPE
3045
3046 # make sure we can execute files in $TMPDIR
3047 cat > $TMPSH 2>> $logfile <<EOF
3048 #! /bin/sh
3049 EOF
3050 chmod +x $TMPSH >> $logfile 2>&1
3051 if ! $TMPSH >> $logfile 2>&1; then
3052     cat <<EOF
3053 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3054 variable to another directory and make sure that it is not mounted noexec.
3055 EOF
3056     die "Sanity test failed."
3057 fi
3058
3059 ccc_flags(){
3060     for flag; do
3061         case $flag in
3062             -std=c99)           echo -c99                       ;;
3063             -mcpu=*)            echo -arch ${flag#*=}           ;;
3064             -mieee)             echo -ieee                      ;;
3065             -O*|-fast)          echo $flag                      ;;
3066             -fno-math-errno)    echo -assume nomath_errno       ;;
3067             -g)                 echo -g3                        ;;
3068             -Wall)              echo -msg_enable level2         ;;
3069             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3070             -Wl,*)              echo $flag                      ;;
3071             -f*|-W*)                                            ;;
3072             *)                  echo $flag                      ;;
3073         esac
3074    done
3075 }
3076
3077 cparser_flags(){
3078     for flag; do
3079         case $flag in
3080             -Wno-switch)             echo -Wno-switch-enum ;;
3081             -Wno-format-zero-length) ;;
3082             -Wdisabled-optimization) ;;
3083             -Wno-pointer-sign)       echo -Wno-other ;;
3084             *)                       echo $flag ;;
3085         esac
3086     done
3087 }
3088
3089 msvc_common_flags(){
3090     for flag; do
3091         case $flag in
3092             # In addition to specifying certain flags under the compiler
3093             # specific filters, they must be specified here as well or else the
3094             # generic catch all at the bottom will print the original flag.
3095             -Wall)                ;;
3096             -std=c99)             ;;
3097             # Common flags
3098             -fomit-frame-pointer) ;;
3099             -g)                   echo -Z7 ;;
3100             -fno-math-errno)      ;;
3101             -fno-common)          ;;
3102             -fno-signed-zeros)    ;;
3103             -fPIC)                ;;
3104             -mthumb)              ;;
3105             -march=*)             ;;
3106             -lz)                  echo zlib.lib ;;
3107             -lavifil32)           echo vfw32.lib ;;
3108             -lavicap32)           echo vfw32.lib user32.lib ;;
3109             -l*)                  echo ${flag#-l}.lib ;;
3110             *)                    echo $flag ;;
3111         esac
3112     done
3113 }
3114
3115 msvc_flags(){
3116     msvc_common_flags "$@"
3117     for flag; do
3118         case $flag in
3119             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3120                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3121                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3122                                        -wd4554 \
3123                                        -wd4273 ;;
3124         esac
3125     done
3126 }
3127
3128 icl_flags(){
3129     msvc_common_flags "$@"
3130     for flag; do
3131         case $flag in
3132             # Despite what Intel's documentation says -Wall, which is supported
3133             # on Windows, does enable remarks so disable them here.
3134             -Wall)                echo $flag -Qdiag-disable:remark ;;
3135             -std=c99)             echo -Qstd=c99 ;;
3136         esac
3137     done
3138 }
3139
3140 icc_flags(){
3141     for flag; do
3142         case $flag in
3143             -flto)                echo -ipo ;;
3144             *)                    echo $flag ;;
3145         esac
3146     done
3147 }
3148
3149 pgi_flags(){
3150     for flag; do
3151         case $flag in
3152             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3153             -fomit-frame-pointer) echo -Mnoframe ;;
3154             -g)                   echo -gopt ;;
3155             *)                    echo $flag ;;
3156         esac
3157     done
3158 }
3159
3160 suncc_flags(){
3161     for flag; do
3162         case $flag in
3163             -march=*|-mcpu=*)
3164                 case "${flag#*=}" in
3165                     native)                   echo -xtarget=native       ;;
3166                     v9|niagara)               echo -xarch=sparc          ;;
3167                     ultrasparc)               echo -xarch=sparcvis       ;;
3168                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3169                     i586|pentium)             echo -xchip=pentium        ;;
3170                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3171                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3172                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3173                     pentium4*)          echo -xtarget=pentium4           ;;
3174                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3175                     *-sse3)             echo -xarch=sse3                 ;;
3176                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3177                     bonnell)                   echo -xarch=ssse3         ;;
3178                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3179                     westmere)                  echo -xtarget=westmere    ;;
3180                     silvermont)                echo -xarch=sse4_2        ;;
3181                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3182                     core-avx*|ivybridge|haswell|broadwell)
3183                                                echo -xarch=avx           ;;
3184                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3185                     btver1)                    echo -xarch=amdsse4a      ;;
3186                     btver2|bdver*)             echo -xarch=avx           ;;
3187                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3188                     k8|opteron|athlon64|athlon-fx)
3189                                                echo -xarch=sse2a         ;;
3190                     athlon*)                   echo -xarch=pentium_proa  ;;
3191                 esac
3192                 ;;
3193             -std=c99)             echo -xc99              ;;
3194             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3195             -fPIC)                echo -KPIC -xcode=pic32 ;;
3196             -W*,*)                echo $flag              ;;
3197             -f*-*|-W*|-mimpure-text)                      ;;
3198             -shared)              echo -G                 ;;
3199             *)                    echo $flag              ;;
3200         esac
3201     done
3202 }
3203
3204 tms470_flags(){
3205     for flag; do
3206         case $flag in
3207             -march=*|-mcpu=*)
3208                 case "${flag#*=}" in
3209                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3210                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3211                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3212                     armv6*|arm11*)          echo -mv=6   ;;
3213                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3214                                             echo -mv=5e  ;;
3215                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3216                 esac
3217                 ;;
3218             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3219             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3220             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3221             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3222             -msoft-float)   echo --float_support=vfplib       ;;
3223             -O[0-3]|-mf=*)  echo $flag                        ;;
3224             -g)             echo -g -mn                       ;;
3225             -pds=*)         echo $flag                        ;;
3226             -D*|-I*)        echo $flag                        ;;
3227             --gcc|--abi=*)  echo $flag                        ;;
3228             -me)            echo $flag                        ;;
3229         esac
3230     done
3231 }
3232
3233 probe_cc(){
3234     pfx=$1
3235     _cc=$2
3236
3237     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3238     unset _ld_o _ldflags _ld_lib _ld_path
3239     unset _depflags _DEPCMD _DEPFLAGS
3240     _flags_filter=echo
3241
3242     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3243         true # no-op to avoid reading stdin in following checks
3244     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3245         _type=llvm_gcc
3246         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3247         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3248         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3249         _cflags_speed='-O3'
3250         _cflags_size='-Os'
3251     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3252         _type=gcc
3253         gcc_version=$($_cc --version | head -n1)
3254         gcc_basever=$($_cc -dumpversion)
3255         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3256         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3257         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3258         if ! $_cc -dumpversion | grep -q '^2\.'; then
3259             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3260         fi
3261         _cflags_speed='-O3'
3262         _cflags_size='-Os'
3263     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3264         _type=icc
3265         _ident=$($_cc --version | head -n1)
3266         _depflags='-MMD'
3267         _cflags_speed='-O3'
3268         _cflags_size='-Os'
3269         _cflags_noopt='-O1'
3270         _flags_filter=icc_flags
3271     elif $_cc -v 2>&1 | grep -q xlc; then
3272         _type=xlc
3273         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3274         _cflags_speed='-O5'
3275         _cflags_size='-O5 -qcompact'
3276     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3277         _type=ccc
3278         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3279         _DEPFLAGS='-M'
3280         _cflags_speed='-fast'
3281         _cflags_size='-O1'
3282         _flags_filter=ccc_flags
3283     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3284         test -d "$sysroot" || die "No valid sysroot specified."
3285         _type=armcc
3286         _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
3287         armcc_conf="$PWD/armcc.conf"
3288         $_cc --arm_linux_configure                 \
3289              --arm_linux_config_file="$armcc_conf" \
3290              --configure_sysroot="$sysroot"        \
3291              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3292              die "Error creating armcc configuration file."
3293         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3294         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3295         as_default="${cross_prefix}gcc"
3296         _depflags='-MMD'
3297         _cflags_speed='-O3'
3298         _cflags_size='-Os'
3299     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3300         _type=tms470
3301         _ident=$($_cc -version | head -n1 | tr -s ' ')
3302         _flags='--gcc --abi=eabi -me'
3303         _cc_e='-ppl -fe=$@'
3304         _cc_o='-fe=$@'
3305         _depflags='-ppa -ppd=$(@:.o=.d)'
3306         _cflags_speed='-O3 -mf=5'
3307         _cflags_size='-O3 -mf=2'
3308         _flags_filter=tms470_flags
3309     elif $_cc -v 2>&1 | grep -q clang; then
3310         _type=clang
3311         _ident=$($_cc --version | head -n1)
3312         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3313         _cflags_speed='-O3'
3314         _cflags_size='-Os'
3315     elif $_cc -V 2>&1 | grep -q Sun; then
3316         _type=suncc
3317         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3318         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3319         _DEPFLAGS='-xM1 -xc99'
3320         _ldflags='-std=c99'
3321         _cflags_speed='-O5'
3322         _cflags_size='-O5 -xspace'
3323         _flags_filter=suncc_flags
3324     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3325         _type=pathscale
3326         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3327         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3328         _cflags_speed='-O2'
3329         _cflags_size='-Os'
3330         _flags_filter='filter_out -Wdisabled-optimization'
3331     elif $_cc -v 2>&1 | grep -q Open64; then
3332         _type=open64
3333         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3334         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3335         _cflags_speed='-O2'
3336         _cflags_size='-Os'
3337         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3338     elif $_cc -V 2>&1 | grep -q Portland; then
3339         _type=pgi
3340         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3341         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3342         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3343         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3344         _cflags_noopt="-O"
3345         _flags_filter=pgi_flags
3346     elif $_cc 2>&1 | grep -q Microsoft; then
3347         _type=msvc
3348         _ident=$($cc 2>&1 | head -n1)
3349         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3350         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3351         _cflags_speed="-O2"
3352         _cflags_size="-O1"
3353         if $_cc 2>&1 | grep -q Linker; then
3354             _ld_o='-out:$@'
3355         else
3356             _ld_o='-Fe$@'
3357         fi
3358         _cc_o='-Fo$@'
3359         _cc_e='-P -Fi$@'
3360         _flags_filter=msvc_flags
3361         _ld_lib='lib%.a'
3362         _ld_path='-libpath:'
3363         _flags='-nologo'
3364         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3365         if [ $pfx = hostcc ]; then
3366             append _cflags -Dsnprintf=_snprintf
3367         fi
3368         disable stripping
3369     elif $_cc 2>&1 | grep -q Intel; then
3370         _type=icl
3371         _ident=$($cc 2>&1 | head -n1)
3372         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3373         # Not only is O3 broken on 13.x+ but it is slower on all previous
3374         # versions (tested) as well.
3375         _cflags_speed="-O2"
3376         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3377         if $_cc 2>&1 | grep -q Linker; then
3378             _ld_o='-out:$@'
3379         else
3380             _ld_o='-Fe$@'
3381         fi
3382         _cc_o='-Fo$@'
3383         _cc_e='-P'
3384         _flags_filter=icl_flags
3385         _ld_lib='lib%.a'
3386         _ld_path='-libpath:'
3387         # -Qdiag-error to make icl error when seeing certain unknown arguments
3388         _flags='-nologo -Qdiag-error:4044,10157'
3389         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3390         # with MSVC which enables it by default.
3391         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3392         if [ $pfx = hostcc ]; then
3393             append _cflags -Dsnprintf=_snprintf
3394         fi
3395     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3396         _type=cparser
3397         _ident=$($_cc --version | head -n1)
3398         _depflags='-MMD'
3399         _cflags_speed='-O4'
3400         _cflags_size='-O2'
3401         _flags_filter=cparser_flags
3402     fi
3403
3404     eval ${pfx}_type=\$_type
3405     eval ${pfx}_ident=\$_ident
3406 }
3407
3408 set_ccvars(){
3409     eval ${1}_C=\${_cc_c-\${${1}_C}}
3410     eval ${1}_E=\${_cc_e-\${${1}_E}}
3411     eval ${1}_O=\${_cc_o-\${${1}_O}}
3412
3413     if [ -n "$_depflags" ]; then
3414         eval ${1}_DEPFLAGS=\$_depflags
3415     else
3416         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3417         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3418         eval DEP${1}FLAGS=\$_flags
3419     fi
3420 }
3421
3422 probe_cc cc "$cc"
3423 cflags_filter=$_flags_filter
3424 cflags_speed=$_cflags_speed
3425 cflags_size=$_cflags_size
3426 cflags_noopt=$_cflags_noopt
3427 add_cflags $_flags $_cflags
3428 cc_ldflags=$_ldflags
3429 set_ccvars CC
3430
3431 probe_cc hostcc "$host_cc"
3432 host_cflags_filter=$_flags_filter
3433 add_host_cflags  $_flags $_cflags
3434 set_ccvars HOSTCC
3435
3436 test -n "$cc_type" && enable $cc_type ||
3437     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3438
3439 : ${as_default:=$cc}
3440 : ${dep_cc_default:=$cc}
3441 : ${ld_default:=$cc}
3442 : ${host_ld_default:=$host_cc}
3443 set_default ar as dep_cc ld host_ld windres
3444
3445 probe_cc as "$as"
3446 asflags_filter=$_flags_filter
3447 add_asflags $_flags $_cflags
3448 set_ccvars AS
3449
3450 probe_cc ld "$ld"
3451 ldflags_filter=$_flags_filter
3452 add_ldflags $_flags $_ldflags
3453 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3454 LD_O=${_ld_o-$LD_O}
3455 LD_LIB=${_ld_lib-$LD_LIB}
3456 LD_PATH=${_ld_path-$LD_PATH}
3457
3458 probe_cc hostld "$host_ld"
3459 host_ldflags_filter=$_flags_filter
3460 add_host_ldflags $_flags $_ldflags
3461 HOSTLD_O=${_ld_o-$HOSTLD_O}
3462
3463 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3464     probe_cc depcc "$dep_cc"
3465     CCDEP=${_DEPCMD:-$DEPCMD}
3466     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3467     DEPCCFLAGS=$_flags
3468 fi
3469
3470 if $ar 2>&1 | grep -q Microsoft; then
3471     arflags="-nologo"
3472     ar_o='-out:$@'
3473 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3474     arflags="rq"
3475     ar_o='$@'
3476 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3477     arflags='-Xany -r -c'
3478     ar_o='$@'
3479 else
3480     arflags="rc"
3481     ar_o='$@'
3482 fi
3483
3484 add_cflags $extra_cflags
3485 add_cxxflags $extra_cxxflags
3486 add_asflags $extra_cflags
3487
3488 if test -n "$sysroot"; then
3489     case "$cc_type" in
3490         gcc|llvm_gcc|clang)
3491             add_cppflags --sysroot="$sysroot"
3492             add_ldflags --sysroot="$sysroot"
3493 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3494             add_cppflags -isysroot "$sysroot"
3495             add_ldflags -isysroot "$sysroot"
3496         ;;
3497         tms470)
3498             add_cppflags -I"$sysinclude"
3499             add_ldflags  --sysroot="$sysroot"
3500         ;;
3501     esac
3502 fi
3503
3504 if test "$cpu" = host; then
3505     enabled cross_compile &&
3506         die "--cpu=host makes no sense when cross-compiling."
3507
3508     case "$cc_type" in
3509         gcc|llvm_gcc)
3510             check_native(){
3511                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3512                 sed -n "/cc1.*$1=/{
3513                             s/.*$1=\\([^ ]*\\).*/\\1/
3514                             p
3515                             q
3516                         }" $TMPE
3517             }
3518             cpu=$(check_native -march || check_native -mcpu)
3519         ;;
3520     esac
3521
3522     test "${cpu:-host}" = host &&
3523         die "--cpu=host not supported with compiler $cc"
3524 fi
3525
3526 # Deal with common $arch aliases
3527 case "$arch" in
3528     aarch64|arm64)
3529         arch="aarch64"
3530     ;;
3531     arm*|iPad*|iPhone*)
3532         arch="arm"
3533     ;;
3534     mips*|IP*)
3535         arch="mips"
3536     ;;
3537     parisc*|hppa*)
3538         arch="parisc"
3539     ;;
3540     "Power Macintosh"|ppc*|powerpc*)
3541         arch="ppc"
3542     ;;
3543     s390|s390x)
3544         arch="s390"
3545     ;;
3546     sh4|sh)
3547         arch="sh4"
3548     ;;
3549     sun4u|sparc*)
3550         arch="sparc"
3551     ;;
3552     tilegx|tile-gx)
3553         arch="tilegx"
3554     ;;
3555     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3556         arch="x86"
3557     ;;
3558 esac
3559
3560 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3561 enable $arch
3562
3563 # Add processor-specific flags
3564 if enabled aarch64; then
3565
3566     case $cpu in
3567         armv*)
3568             cpuflags="-march=$cpu"
3569         ;;
3570         *)
3571             cpuflags="-mcpu=$cpu"
3572         ;;
3573     esac
3574
3575 elif enabled alpha; then
3576
3577     cpuflags="-mcpu=$cpu"
3578
3579 elif enabled arm; then
3580
3581     check_arm_arch() {
3582         check_cpp_condition stddef.h \
3583             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3584             $cpuflags
3585     }
3586
3587     probe_arm_arch() {
3588         if   check_arm_arch 4;        then echo armv4;
3589         elif check_arm_arch 4T;       then echo armv4t;
3590         elif check_arm_arch 5;        then echo armv5;
3591         elif check_arm_arch 5E;       then echo armv5e;
3592         elif check_arm_arch 5T;       then echo armv5t;
3593         elif check_arm_arch 5TE;      then echo armv5te;
3594         elif check_arm_arch 5TEJ;     then echo armv5te;
3595         elif check_arm_arch 6;        then echo armv6;
3596         elif check_arm_arch 6J;       then echo armv6j;
3597         elif check_arm_arch 6K;       then echo armv6k;
3598         elif check_arm_arch 6Z;       then echo armv6z;
3599         elif check_arm_arch 6ZK;      then echo armv6zk;
3600         elif check_arm_arch 6T2;      then echo armv6t2;
3601         elif check_arm_arch 7;        then echo armv7;
3602         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3603         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3604         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3605         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3606         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3607         fi
3608     }
3609
3610     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3611
3612     case $cpu in
3613         armv*)
3614             cpuflags="-march=$cpu"
3615             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3616         ;;
3617         *)
3618             cpuflags="-mcpu=$cpu"
3619             case $cpu in
3620                 cortex-a*)                               subarch=armv7a  ;;
3621                 cortex-r*)                               subarch=armv7r  ;;
3622                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3623                 arm11*)                                  subarch=armv6   ;;
3624                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3625                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3626                 *)                             subarch=$(probe_arm_arch) ;;
3627             esac
3628         ;;
3629     esac
3630
3631     case "$subarch" in
3632         armv5t*)    enable fast_clz                ;;
3633         armv[6-8]*)
3634             enable fast_clz
3635             disabled fast_unaligned || enable fast_unaligned
3636             ;;
3637     esac
3638
3639 elif enabled avr32; then
3640
3641     case $cpu in
3642         ap7[02]0[0-2])
3643             subarch="avr32_ap"
3644             cpuflags="-mpart=$cpu"
3645         ;;
3646         ap)
3647             subarch="avr32_ap"
3648             cpuflags="-march=$cpu"
3649         ;;
3650         uc3[ab]*)
3651             subarch="avr32_uc"
3652             cpuflags="-mcpu=$cpu"
3653         ;;
3654         uc)
3655             subarch="avr32_uc"
3656             cpuflags="-march=$cpu"
3657         ;;
3658     esac
3659
3660 elif enabled bfin; then
3661
3662     cpuflags="-mcpu=$cpu"
3663
3664 elif enabled mips; then
3665
3666     cpuflags="-march=$cpu"
3667
3668     case $cpu in
3669         24kc)
3670             disable mipsfpu
3671             disable mipsdspr1
3672             disable mipsdspr2
3673         ;;
3674         24kf*)
3675             disable mipsdspr1
3676             disable mipsdspr2
3677         ;;
3678         24kec|34kc|1004kc)
3679             disable mipsfpu
3680             disable mipsdspr2
3681         ;;
3682         24kef*|34kf*|1004kf*)
3683             disable mipsdspr2
3684         ;;
3685         74kc)
3686             disable mipsfpu
3687         ;;
3688     esac
3689
3690 elif enabled ppc; then
3691
3692     disable ldbrx
3693
3694     case $(tolower $cpu) in
3695         601|ppc601|powerpc601)
3696             cpuflags="-mcpu=601"
3697             disable altivec
3698         ;;
3699         603*|ppc603*|powerpc603*)
3700             cpuflags="-mcpu=603"
3701             disable altivec
3702         ;;
3703         604*|ppc604*|powerpc604*)
3704             cpuflags="-mcpu=604"
3705             disable altivec
3706         ;;
3707         g3|75*|ppc75*|powerpc75*)
3708             cpuflags="-mcpu=750"
3709             disable altivec
3710         ;;
3711         g4|745*|ppc745*|powerpc745*)
3712             cpuflags="-mcpu=7450"
3713         ;;
3714         74*|ppc74*|powerpc74*)
3715             cpuflags="-mcpu=7400"
3716         ;;
3717         g5|970|ppc970|powerpc970)
3718             cpuflags="-mcpu=970"
3719         ;;
3720         power[3-7]*)
3721             cpuflags="-mcpu=$cpu"
3722         ;;
3723         cell)
3724             cpuflags="-mcpu=cell"
3725             enable ldbrx
3726         ;;
3727         e500mc)
3728             cpuflags="-mcpu=e500mc"
3729             disable altivec
3730         ;;
3731         e500v2)
3732             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3733             disable altivec
3734             disable dcbzl
3735         ;;
3736         e500)
3737             cpuflags="-mcpu=8540 -mhard-float"
3738             disable altivec
3739             disable dcbzl
3740         ;;
3741     esac
3742
3743 elif enabled sparc; then
3744
3745     case $cpu in
3746         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3747             cpuflags="-mcpu=$cpu"
3748         ;;
3749         ultrasparc*|niagara[234])
3750             cpuflags="-mcpu=$cpu"
3751         ;;
3752     esac
3753
3754 elif enabled x86; then
3755
3756     case $cpu in
3757         i[345]86|pentium)
3758             cpuflags="-march=$cpu"
3759             disable mmx
3760         ;;
3761         # targets that do NOT support nopl and conditional mov (cmov)
3762         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3763             cpuflags="-march=$cpu"
3764             disable i686
3765         ;;
3766         # targets that do support nopl and conditional mov (cmov)
3767         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3768         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3769             cpuflags="-march=$cpu"
3770             enable i686
3771             enable fast_cmov
3772         ;;
3773         # targets that do support conditional mov but on which it's slow
3774         pentium4|pentium4m|prescott|nocona)
3775             cpuflags="-march=$cpu"
3776             enable i686
3777             disable fast_cmov
3778         ;;
3779     esac
3780
3781 fi
3782
3783 if [ "$cpu" != generic ]; then
3784     add_cflags  $cpuflags
3785     add_asflags $cpuflags
3786 fi
3787
3788 # compiler sanity check
3789 check_exec <<EOF
3790 int main(void){ return 0; }
3791 EOF
3792 if test "$?" != 0; then
3793     echo "$cc is unable to create an executable file."
3794     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3795         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3796         echo "Only do this if you know what cross compiling means."
3797     fi
3798     die "C compiler test failed."
3799 fi
3800
3801 add_cppflags -D_ISOC99_SOURCE
3802 add_cxxflags -D__STDC_CONSTANT_MACROS
3803 check_cflags -std=c99
3804 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3805 #include <stdlib.h>
3806 EOF
3807 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3808 #include <stdlib.h>
3809 EOF
3810
3811 add_host_cppflags -D_ISOC99_SOURCE
3812 check_host_cflags -std=c99
3813 check_host_cflags -Wall
3814 check_host_cflags -O3
3815
3816 check_64bit(){
3817     arch32=$1
3818     arch64=$2
3819     expr=$3
3820     check_code cc "" "int test[2*($expr) - 1]" &&
3821         subarch=$arch64 || subarch=$arch32
3822 }
3823
3824 case "$arch" in
3825     aarch64|alpha|ia64)
3826         spic=$shared
3827     ;;
3828     mips)
3829         check_64bit mips mips64 '_MIPS_SIM > 1'
3830         spic=$shared
3831     ;;
3832     parisc)
3833         check_64bit parisc parisc64 'sizeof(void *) > 4'
3834         spic=$shared
3835     ;;
3836     ppc)
3837         check_64bit ppc ppc64 'sizeof(void *) > 4'
3838         spic=$shared
3839     ;;
3840     s390)
3841         check_64bit s390 s390x 'sizeof(void *) > 4'
3842         spic=$shared
3843     ;;
3844     sparc)
3845         check_64bit sparc sparc64 'sizeof(void *) > 4'
3846         spic=$shared
3847     ;;
3848     x86)
3849         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3850         if test "$subarch" = "x86_64"; then
3851             spic=$shared
3852         fi
3853     ;;
3854     ppc)
3855         check_cc <<EOF && subarch="ppc64"
3856         int test[(int)sizeof(char*) - 7];
3857 EOF
3858     ;;
3859 esac
3860
3861 enable $subarch
3862 enabled spic && enable_weak pic
3863
3864 # OS specific
3865 case $target_os in
3866     aix)
3867         SHFLAGS=-shared
3868         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3869         enabled shared && add_ldflags -Wl,-brtl
3870         ;;
3871     android)
3872         disable symver
3873         SLIB_INSTALL_NAME='$(SLIBNAME)'
3874         SLIB_INSTALL_LINKS=
3875         # soname not set on purpose
3876         SHFLAGS=-shared
3877         ;;
3878     haiku)
3879         prefix_default="/boot/common"
3880         network_extralibs="-lnetwork"
3881         host_libs=
3882         ;;
3883     sunos)
3884         SHFLAGS='-shared -Wl,-h,$$(@F)'
3885         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3886         network_extralibs="-lsocket -lnsl"
3887         # When using suncc to build, the Solaris linker will mark
3888         # an executable with each instruction set encountered by
3889         # the Solaris assembler.  As our libraries contain their own
3890         # guards for processor-specific code, instead suppress
3891         # generation of the HWCAPS ELF section on Solaris x86 only.
3892         enabled_all suncc x86 &&
3893             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3894             add_ldflags -Wl,-M,mapfile
3895         nm_default='nm -P -g'
3896         ;;
3897     netbsd)
3898         disable symver
3899         oss_indev_extralibs="-lossaudio"
3900         oss_outdev_extralibs="-lossaudio"
3901         enabled gcc || check_ldflags -Wl,-zmuldefs
3902         ;;
3903     openbsd|bitrig)
3904         disable symver
3905         SHFLAGS='-shared'
3906         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3907         SLIB_INSTALL_LINKS=
3908         oss_indev_extralibs="-lossaudio"
3909         oss_outdev_extralibs="-lossaudio"
3910         ;;
3911     dragonfly)
3912         disable symver
3913         ;;
3914     freebsd)
3915         ;;
3916     bsd/os)
3917         add_extralibs -lpoll -lgnugetopt
3918         strip="strip -d"
3919         ;;
3920     darwin)
3921         test "${as#*gas-preprocessor.pl}" != "$as" || gas="${gas:=gas-preprocessor.pl} ${as:=$cc}"
3922         enabled ppc && add_asflags -force_cpusubtype_ALL
3923         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3924         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3925         strip="${strip} -x"
3926         add_ldflags -Wl,-dynamic,-search_paths_first
3927         SLIBSUF=".dylib"
3928         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3929         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3930         objformat="macho"
3931         enabled x86_64 && objformat="macho64"
3932         enabled_any pic shared ||
3933             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3934         ;;
3935     mingw32*)
3936         if test $target_os = "mingw32ce"; then
3937             disable network
3938         else
3939             target_os=mingw32
3940         fi
3941         LIBTARGET=i386
3942         if enabled x86_64; then
3943             LIBTARGET="i386:x86-64"
3944         elif enabled arm; then
3945             LIBTARGET=arm-wince
3946         fi
3947         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3948         check_ldflags -Wl,--nxcompat
3949         check_ldflags -Wl,--dynamicbase
3950         shlibdir_default="$bindir_default"
3951         SLIBPREF=""
3952         SLIBSUF=".dll"
3953         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3954         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3955         dlltool="${cross_prefix}dlltool"
3956         if check_cmd lib.exe -list; then
3957             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3958             if enabled x86_64; then
3959                 LIBTARGET=x64
3960             fi
3961         elif check_cmd $dlltool --version; then
3962             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3963         fi
3964         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3965         SLIB_INSTALL_LINKS=
3966         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3967         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3968         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3969         objformat="win32"
3970         ranlib=:
3971         enable dos_paths
3972         ;;
3973     win32|win64)
3974         disable symver
3975         if enabled shared; then
3976             # Link to the import library instead of the normal static library
3977             # for shared libs.
3978             LD_LIB='%.lib'
3979             # Cannot build both shared and static libs with MSVC or icl.
3980             disable static
3981         fi
3982         shlibdir_default="$bindir_default"
3983         SLIBPREF=""
3984         SLIBSUF=".dll"
3985         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3986         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3987         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3988         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3989         SLIB_INSTALL_LINKS=
3990         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3991         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3992         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3993         objformat="win32"
3994         ranlib=:
3995         enable dos_paths
3996         ;;
3997     cygwin*)
3998         target_os=cygwin
3999         shlibdir_default="$bindir_default"
4000         SLIBPREF="cyg"
4001         SLIBSUF=".dll"
4002         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4003         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4004         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4005         SLIB_INSTALL_LINKS=
4006         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4007         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4008         objformat="win32"
4009         enable dos_paths
4010         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4011         ;;
4012     *-dos|freedos|opendos)
4013         network_extralibs="-lsocket"
4014         objformat="coff"
4015         enable dos_paths
4016         add_cppflags -U__STRICT_ANSI__
4017         ;;
4018     linux)
4019         enable dv1394
4020         ;;
4021     irix*)
4022         target_os=irix
4023         ranlib="echo ignoring ranlib"
4024         ;;
4025     os/2*)
4026         strip="lxlite -CS"
4027         ln_s="cp -f"
4028         objformat="aout"
4029         add_cppflags -D_GNU_SOURCE
4030         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4031         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4032         LIBSUF="_s.a"
4033         SLIBPREF=""
4034         SLIBSUF=".dll"
4035         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4036         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4037         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4038             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4039             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4040             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4041             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4042             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4043         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4044             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4045         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4046         enable dos_paths
4047         enable_weak os2threads
4048         ;;
4049     gnu/kfreebsd)
4050         add_cppflags -D_BSD_SOURCE
4051         ;;
4052     gnu)
4053         ;;
4054     qnx)
4055         add_cppflags -D_QNX_SOURCE
4056         network_extralibs="-lsocket"
4057         ;;
4058     symbian)
4059         SLIBSUF=".dll"
4060         enable dos_paths
4061         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4062         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4063         add_ldflags -Wl,--target1-abs,--no-undefined \
4064                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4065                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4066         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4067                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4068                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4069         ;;
4070     osf1)
4071         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4072         ;;
4073     minix)
4074         ;;
4075     plan9)
4076         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4077                      -D_REENTRANT_SOURCE        \
4078                      -D_RESEARCH_SOURCE         \
4079                      -DFD_SETSIZE=96            \
4080                      -DHAVE_SOCK_OPTS
4081         add_compat strtod.o strtod=avpriv_strtod
4082         network_extralibs='-lbsd'
4083         exeobjs=compat/plan9/main.o
4084         disable ffserver
4085         cp_f='cp'
4086         ;;
4087     none)
4088         ;;
4089     *)
4090         die "Unknown OS '$target_os'."
4091         ;;
4092 esac
4093
4094 # determine libc flavour
4095
4096 probe_libc(){
4097     pfx=$1
4098     pfx_no_=${pfx%_}
4099     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4100     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4101         eval ${pfx}libc_type=uclibc
4102         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4103     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4104         eval ${pfx}libc_type=glibc
4105         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4106     # MinGW headers can be installed on Cygwin, so check for newlib first.
4107     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4108         eval ${pfx}libc_type=newlib
4109         add_${pfx}cppflags -U__STRICT_ANSI__
4110     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4111     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4112         eval ${pfx}libc_type=mingw64
4113         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4114             add_compat msvcrt/snprintf.o
4115             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4116         fi
4117         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4118         eval test \$${pfx_no_}cc_type = "gcc" &&
4119             add_${pfx}cppflags -D__printf__=__gnu_printf__
4120     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4121          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4122         eval ${pfx}libc_type=mingw32
4123         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4124             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4125             die "ERROR: MinGW32 runtime version must be >= 3.15."
4126         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4127         eval test \$${pfx_no_}cc_type = "gcc" &&
4128             add_${pfx}cppflags -D__printf__=__gnu_printf__
4129     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4130         eval ${pfx}libc_type=msvcrt
4131         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4132         # 0x601 by default unless something else is set by the user.
4133         # This can easily lead to us detecting functions only present
4134         # in such new versions and producing binaries requiring windows 7.0.
4135         # Therefore explicitly set the default to XP unless the user has
4136         # set something else on the command line.
4137         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4138             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4139     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4140         eval ${pfx}libc_type=klibc
4141     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4142         eval ${pfx}libc_type=bionic
4143     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4144         eval ${pfx}libc_type=solaris
4145         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4146     fi
4147 }
4148
4149 probe_libc
4150 test -n "$libc_type" && enable libc_$libc_type
4151 probe_libc host_
4152 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4153
4154 case $libc_type in
4155     bionic)
4156         add_compat strtod.o strtod=avpriv_strtod
4157         ;;
4158     msvcrt)
4159         add_compat strtod.o strtod=avpriv_strtod
4160         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4161                                      _snprintf=avpriv_snprintf  \
4162                                      vsnprintf=avpriv_vsnprintf
4163         ;;
4164 esac
4165
4166 # hacks for compiler/libc/os combinations
4167
4168 if enabled_all tms470 libc_glibc; then
4169     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4170     add_cppflags -D__USER_LABEL_PREFIX__=
4171     add_cppflags -D__builtin_memset=memset
4172     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4173     add_cflags   -pds=48    # incompatible redefinition of macro
4174 fi
4175
4176 if enabled_all ccc libc_glibc; then
4177     add_ldflags -Wl,-z,now  # calls to libots crash without this
4178 fi
4179
4180 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4181     add_cppflags '-I\$(SRC_PATH)/compat/float'
4182
4183 esc(){
4184     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4185 }
4186
4187 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4188
4189 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4190
4191 set_default $PATHS_LIST
4192 set_default nm
4193
4194 # we need to build at least one lib type
4195 if ! enabled_any static shared; then
4196     cat <<EOF
4197 At least one library type must be built.
4198 Specify --enable-static to build the static libraries or --enable-shared to
4199 build the shared libraries as well. To only build the shared libraries specify
4200 --disable-static in addition to --enable-shared.
4201 EOF
4202     exit 1;
4203 fi
4204
4205 die_license_disabled() {
4206     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4207 }
4208
4209 die_license_disabled_gpl() {
4210     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4211 }
4212
4213 die_license_disabled gpl frei0r
4214 die_license_disabled gpl libcdio
4215 die_license_disabled gpl libutvideo
4216 die_license_disabled gpl libvidstab
4217 die_license_disabled gpl libx264
4218 die_license_disabled gpl libx265
4219 die_license_disabled gpl libxavs
4220 die_license_disabled gpl libxvid
4221 die_license_disabled gpl libzvbi
4222 die_license_disabled gpl x11grab
4223
4224 die_license_disabled nonfree libaacplus
4225 die_license_disabled nonfree libfaac
4226 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4227 enabled gpl && die_license_disabled_gpl nonfree openssl
4228
4229 die_license_disabled version3 libopencore_amrnb
4230 die_license_disabled version3 libopencore_amrwb
4231 die_license_disabled version3 libvo_aacenc
4232 die_license_disabled version3 libvo_amrwbenc
4233
4234 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4235
4236 disabled optimizations || check_cflags -fomit-frame-pointer
4237
4238 enable_weak_pic() {
4239     disabled pic && return
4240     enable pic
4241     add_cppflags -DPIC
4242     case "$target_os" in
4243     mingw*|cygwin*)
4244         ;;
4245     *)
4246         add_cflags -fPIC
4247         ;;
4248     esac
4249     add_asflags  -fPIC
4250 }
4251
4252 enabled pic && enable_weak_pic
4253
4254 check_cc <<EOF || die "Symbol mangling check failed."
4255 int ff_extern;
4256 EOF
4257 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4258 extern_prefix=${sym%%ff_extern*}
4259
4260 check_cc <<EOF && enable_weak inline_asm
4261 void foo(void) { __asm__ volatile ("" ::); }
4262 EOF
4263
4264 _restrict=
4265 for restrict_keyword in restrict __restrict__ __restrict; do
4266     check_cc <<EOF && _restrict=$restrict_keyword && break
4267 void foo(char * $restrict_keyword p);
4268 EOF
4269 done
4270
4271 check_cc <<EOF && enable pragma_deprecated
4272 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4273 EOF
4274
4275 check_cc <<EOF && enable attribute_packed
4276 struct { int x; } __attribute__((packed)) x;
4277 EOF
4278
4279 check_cc <<EOF && enable attribute_may_alias
4280 union { int x; } __attribute__((may_alias)) x;
4281 EOF
4282
4283 check_cc <<EOF || die "endian test failed"
4284 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4285 EOF
4286 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4287
4288
4289 if enabled asm && ! enabled_any ppc64 pic; then
4290     enabled     arm         && nogas=die
4291     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4292     as=${gas:=$as}
4293     check_as <<EOF && enable gnu_as || \
4294         $nogas "GNU assembler not found, install gas-preprocessor"
4295 .macro m n
4296 \n: .int 0
4297 .endm
4298 m x
4299 EOF
4300
4301     check_as <<EOF || $nogas "GNU assembler not found, install gas-preprocessor"
4302 .altmacro
4303 EOF
4304
4305     check_as <<EOF && enable as_func
4306 .func test
4307 .endfunc
4308 EOF
4309 fi
4310
4311 check_inline_asm inline_asm_labels '"1:\n"'
4312
4313 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4314
4315 if enabled aarch64; then
4316     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4317     # internal assembler in clang 3.3 does not support this instruction
4318     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4319     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4320
4321     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4322
4323 elif enabled alpha; then
4324
4325     check_cflags -mieee
4326
4327 elif enabled arm; then
4328
4329     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4330 float func(float a, float b){ return a+b; }
4331 EOF
4332
4333     enabled thumb && check_cflags -mthumb || check_cflags -marm
4334
4335     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4336         enable vfp_args
4337     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4338         case "${cross_prefix:-$cc}" in
4339             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4340             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4341 __asm__ (".eabi_attribute 28, 1");
4342 int main(void) { return 0; }
4343 EOF
4344         esac
4345         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4346     fi
4347
4348     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4349     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4350     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4351     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4352     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4353     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4354
4355     [ $target_os = linux ] ||
4356         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4357             $ARCH_EXT_LIST_ARM
4358
4359     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4360
4361     check_as <<EOF && enable as_dn_directive
4362 ra .dn d0.i16
4363 .unreq ra
4364 EOF
4365
4366     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4367
4368 elif enabled mips; then
4369
4370     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4371     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4372      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4373     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4374      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4375     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4376      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4377     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4378      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4379
4380 elif enabled parisc; then
4381
4382     if enabled gcc; then
4383         case $($cc -dumpversion) in
4384             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4385         esac
4386     fi
4387
4388 elif enabled ppc; then
4389
4390     enable local_aligned_8 local_aligned_16 local_aligned_32
4391
4392     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4393     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4394     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4395     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4396
4397     # AltiVec flags: The FSF version of GCC differs from the Apple version
4398     if enabled altivec; then
4399         check_cflags -maltivec -mabi=altivec &&
4400         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4401         check_cflags -faltivec
4402
4403         # check if our compiler supports Motorola AltiVec C API
4404         check_cc <<EOF || disable altivec
4405 $inc_altivec_h
4406 int main(void) {
4407     vector signed int v1 = (vector signed int) { 0 };
4408     vector signed int v2 = (vector signed int) { 1 };
4409     v1 = vec_add(v1, v2);
4410     return 0;
4411 }
4412 EOF
4413
4414         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4415     fi
4416
4417 elif enabled x86; then
4418
4419     check_builtin rdtsc    intrin.h   "__rdtsc()"
4420     check_builtin mm_empty mmintrin.h "_mm_empty()"
4421
4422     enable local_aligned_8 local_aligned_16 local_aligned_32
4423
4424     # check whether EBP is available on x86
4425     # As 'i' is stored on the stack, this program will crash
4426     # if the base pointer is used to access it because the
4427     # base pointer is cleared in the inline assembly code.
4428     check_exec_crash <<EOF && enable ebp_available
4429 volatile int i=0;
4430 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4431 return i;
4432 EOF
4433
4434     # check whether EBX is available on x86
4435     check_inline_asm ebx_available '""::"b"(0)' &&
4436         check_inline_asm ebx_available '"":::"%ebx"'
4437
4438     # check whether xmm clobbers are supported
4439     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4440
4441     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4442         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4443
4444     # check whether binutils is new enough to compile AVX/SSSE3/MMXEXT
4445     enabled avx    && check_inline_asm avx_inline    '"vextractf128 $1, %ymm0, %xmm1"'
4446     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4447     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4448
4449     if ! disabled_any asm mmx yasm; then
4450         if check_cmd $yasmexe --version; then
4451             enabled x86_64 && yasm_extra="-m amd64"
4452             yasm_debug="-g dwarf2"
4453         elif check_cmd nasm -v; then
4454             yasmexe=nasm
4455             yasm_debug="-g -F dwarf"
4456             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4457         fi
4458
4459         YASMFLAGS="-f $objformat $yasm_extra"
4460         enabled pic               && append YASMFLAGS "-DPIC"
4461         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4462         case "$objformat" in
4463             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4464         esac
4465
4466         check_yasm "movbe ecx, [5]" && enable yasm ||
4467             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4468         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4469         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4470         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4471         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4472         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4473         check_yasm "CPU amdnop" || disable cpunop
4474     fi
4475
4476     case "$cpu" in
4477         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4478             disable fast_clz
4479         ;;
4480     esac
4481
4482 fi
4483
4484 check_ldflags -Wl,--as-needed
4485
4486 if check_func dlopen; then
4487     ldl=
4488 elif check_func dlopen -ldl; then
4489     ldl=-ldl
4490 fi
4491
4492 if ! disabled network; then
4493     check_func getaddrinfo $network_extralibs
4494     check_func getservbyport $network_extralibs
4495     check_func inet_aton $network_extralibs
4496
4497     check_type netdb.h "struct addrinfo"
4498     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4499     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4500     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4501     check_type poll.h "struct pollfd"
4502     check_type netinet/sctp.h "struct sctp_event_subscribe"
4503     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4504     check_type netinet/in.h "struct sockaddr_in6"
4505     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4506     check_type "sys/types.h sys/socket.h" socklen_t
4507
4508     # Prefer arpa/inet.h over winsock2
4509     if check_header arpa/inet.h ; then
4510         check_func closesocket
4511     elif check_header winsock2.h ; then
4512         check_func_headers winsock2.h closesocket -lws2 &&
4513             network_extralibs="-lws2" ||
4514         { check_func_headers winsock2.h closesocket -lws2_32 &&
4515             network_extralibs="-lws2_32"; } || disable winsock2_h network
4516         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4517
4518         check_type ws2tcpip.h socklen_t
4519         check_type ws2tcpip.h "struct addrinfo"
4520         check_type ws2tcpip.h "struct group_source_req"
4521         check_type ws2tcpip.h "struct ip_mreq_source"
4522         check_type ws2tcpip.h "struct ipv6_mreq"
4523         check_type winsock2.h "struct pollfd"
4524         check_struct winsock2.h "struct sockaddr" sa_len
4525         check_type ws2tcpip.h "struct sockaddr_in6"
4526         check_type ws2tcpip.h "struct sockaddr_storage"
4527     else
4528         disable network
4529     fi
4530 fi
4531
4532 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4533 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4534 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4535 check_builtin sarestart signal.h "SA_RESTART"
4536 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4537
4538 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4539 check_func  ${malloc_prefix}memalign            && enable memalign
4540 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4541
4542 check_func  access
4543 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4544 check_func  fcntl
4545 check_func  fork
4546 check_func  gethrtime
4547 check_func  getopt
4548 check_func  getrusage
4549 check_func  gettimeofday
4550 check_func  isatty
4551 check_func  localtime_r
4552 check_func  mach_absolute_time
4553 check_func  mkstemp
4554 check_func  mmap
4555 check_func  mprotect
4556 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4557 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4558 check_func  sched_getaffinity
4559 check_func  setrlimit
4560 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4561 check_func  strerror_r
4562 check_func  sysconf
4563 check_func  sysctl
4564 check_func  usleep
4565
4566 check_func_headers conio.h kbhit
4567 check_func_headers io.h setmode
4568 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4569 check_func_headers stdlib.h getenv
4570
4571 check_func_headers windows.h CoTaskMemFree -lole32
4572 check_func_headers windows.h GetProcessAffinityMask
4573 check_func_headers windows.h GetProcessTimes
4574 check_func_headers windows.h GetSystemTimeAsFileTime
4575 check_func_headers windows.h MapViewOfFile
4576 check_func_headers windows.h PeekNamedPipe
4577 check_func_headers windows.h SetConsoleTextAttribute
4578 check_func_headers windows.h Sleep
4579 check_func_headers windows.h VirtualAlloc
4580 check_func_headers glob.h glob
4581 enabled xlib &&
4582     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4583
4584 check_header cl/cl.h
4585 check_header direct.h
4586 check_header dlfcn.h
4587 check_header dxva.h
4588 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4589 check_header io.h
4590 check_header libcrystalhd/libcrystalhd_if.h
4591 check_header mach/mach_time.h
4592 check_header malloc.h
4593 check_header poll.h
4594 check_header sys/mman.h
4595 check_header sys/param.h
4596 check_header sys/resource.h
4597 check_header sys/select.h
4598 check_header sys/time.h
4599 check_header sys/un.h
4600 check_header termios.h
4601 check_header unistd.h
4602 check_header vdpau/vdpau.h
4603 check_header vdpau/vdpau_x11.h
4604 check_header VideoDecodeAcceleration/VDADecoder.h
4605 check_header windows.h
4606 check_header X11/extensions/XvMClib.h
4607 check_header asm/types.h
4608
4609 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4610 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4611 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4612
4613 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4614
4615 if ! disabled w32threads && ! enabled pthreads; then
4616     check_func_headers "windows.h process.h" _beginthreadex &&
4617         enable w32threads || disable w32threads
4618 fi
4619
4620 # check for some common methods of building with pthread support
4621 # do this before the optional library checks as some of them require pthreads
4622 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4623     enable pthreads
4624     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4625         add_cflags -pthread
4626         add_extralibs -pthread
4627     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4628         add_cflags -pthreads
4629         add_extralibs -pthreads
4630     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4631         add_cflags -ldl -pthread
4632         add_extralibs -ldl -pthread
4633     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4634         add_extralibs -lpthreadGC2
4635     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4636         :
4637     elif ! check_func pthread_join && ! check_func pthread_create; then
4638         disable pthreads
4639     fi
4640     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4641 fi
4642
4643
4644 if enabled pthreads; then
4645   check_func pthread_cancel
4646 fi
4647
4648 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4649 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4650
4651 check_lib math.h sin -lm && LIBM="-lm"
4652 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4653
4654 atan2f_args=2
4655 ldexpf_args=2
4656 powf_args=2
4657 fminf_args=2
4658
4659 for func in $MATH_FUNCS; do
4660     eval check_mathfunc $func \${${func}_args:-1}
4661 done
4662
4663 # these are off by default, so fail if requested and not available
4664 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4665 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4666                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4667                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4668 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4669 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4670 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4671 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4672 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4673 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4674 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4675 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4676 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4677 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4678                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4679                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4680 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4681 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4682 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4683 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"
4684 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4685 enabled fontconfig        && enable libfontconfig
4686 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4687 enabled libfreetype       && require_libfreetype
4688 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4689 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4690                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4691                                done || die "ERROR: libgsm not found"; }
4692 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4693 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4694 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4695 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4696 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4697 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4698 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4699 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4700                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4701                                die "ERROR: libopenjpeg not found"; }
4702 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4703 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4704 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4705 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4706 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4707 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4708 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4709 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4710 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4711 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4712     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4713     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4714 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4715 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4716                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4717                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4718 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4719 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4720 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4721 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4722 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4723 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4724 enabled libvpx            && {
4725     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4726                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4727     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 ||
4728                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4729     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4730     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; } }
4731 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4732 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4733 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4734                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4735                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4736 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4737                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4738                                die "ERROR: libx265 version must be >= 17."; }
4739 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4740 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4741 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4742 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4743 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4744                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4745                                die "ERROR: openal not found"; } &&
4746                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4747                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4748 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4749                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4750                                die "ERROR: opencl not found"; } &&
4751                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4752                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4753                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4754 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4755                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4756                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4757                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4758                                die "ERROR: opengl not found."
4759                              }
4760 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4761                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4762                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4763                                die "ERROR: openssl not found"; }
4764 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4765
4766 if enabled gnutls; then
4767     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4768     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4769 fi
4770
4771 # libdc1394 check
4772 if enabled libdc1394; then
4773     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4774         enable libdc1394_2; } ||
4775     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4776         enable libdc1394_1; } ||
4777     die "ERROR: No version of libdc1394 found "
4778 fi
4779
4780 SDL_CONFIG="${cross_prefix}sdl-config"
4781 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4782     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4783     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4784     enable sdl
4785 else
4786   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4787     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4788     sdl_libs=$("${SDL_CONFIG}" --libs)
4789     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4790     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4791     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4792     enable sdl
4793   fi
4794 fi
4795 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4796
4797 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4798 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4799 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4800 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4801 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4802
4803 check_header linux/fb.h
4804 check_header linux/videodev.h
4805 check_header linux/videodev2.h
4806 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4807
4808 check_header sys/videoio.h
4809
4810 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4811 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4812 # w32api 3.12 had it defined wrong
4813 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4814
4815 check_type "dshow.h" IBaseFilter
4816
4817 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4818 { check_header dev/bktr/ioctl_meteor.h &&
4819   check_header dev/bktr/ioctl_bt848.h; } ||
4820 { check_header machine/ioctl_meteor.h &&
4821   check_header machine/ioctl_bt848.h; } ||
4822 { check_header dev/video/meteor/ioctl_meteor.h &&
4823   check_header dev/video/bktr/ioctl_bt848.h; } ||
4824 check_header dev/ic/bt8xx.h
4825
4826 check_header sndio.h
4827 if check_struct sys/soundcard.h audio_buf_info bytes; then
4828     enable_safe sys/soundcard.h
4829 else
4830     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4831     #include <sys/soundcard.h>
4832     audio_buf_info abc;
4833 EOF
4834 fi
4835 check_header soundcard.h
4836
4837 enabled_any alsa_indev alsa_outdev &&
4838     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4839
4840 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4841     check_func jack_port_get_latency_range -ljack
4842
4843 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4844
4845 if enabled libcdio; then
4846     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4847     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4848     die "ERROR: libcdio-paranoia not found"
4849 fi
4850
4851 enabled xlib &&
4852     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4853
4854 enabled x11grab                                           &&
4855 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4856 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4857 { enabled xlib || die "ERROR: Xlib not found"; }
4858
4859 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
4860
4861 enabled dxva2api_h &&
4862     check_cc <<EOF && enable dxva2api_cobj
4863 #define _WIN32_WINNT 0x0600
4864 #define COBJMACROS
4865 #include <windows.h>
4866 #include <d3d9.h>
4867 #include <dxva2api.h>
4868 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
4869 EOF
4870
4871 enabled vaapi &&
4872     check_lib va/va.h vaInitialize -lva ||
4873     disable vaapi
4874
4875 enabled vdpau &&
4876     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4877     disable vdpau
4878
4879 enabled vdpau && enabled xlib &&
4880     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4881     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4882     enable vdpau_x11
4883
4884 # Funny iconv installations are not unusual, so check it after all flags have been set
4885 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4886
4887 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4888
4889 # add some useful compiler flags if supported
4890 check_cflags -Wdeclaration-after-statement
4891 check_cflags -Wall
4892 check_cflags -Wdisabled-optimization
4893 check_cflags -Wpointer-arith
4894 check_cflags -Wredundant-decls
4895 check_cflags -Wwrite-strings
4896 check_cflags -Wtype-limits
4897 check_cflags -Wundef
4898 check_cflags -Wmissing-prototypes
4899 check_cflags -Wno-pointer-to-int-cast
4900 check_cflags -Wstrict-prototypes
4901 check_cflags -Wempty-body
4902 enabled extra_warnings && check_cflags -Winline
4903
4904 check_disable_warning(){
4905     warning_flag=-W${1#-Wno-}
4906     test_cflags $warning_flag && add_cflags $1
4907 }
4908
4909 check_disable_warning -Wno-parentheses
4910 check_disable_warning -Wno-switch
4911 check_disable_warning -Wno-format-zero-length
4912 check_disable_warning -Wno-pointer-sign
4913
4914 # add some linker flags
4915 check_ldflags -Wl,--warn-common
4916 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4917 enabled rpath && add_ldflags -Wl,-rpath,$libdir
4918 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4919
4920 # add some strip flags
4921 # -wN '..@*' is more selective than -x, but not available everywhere.
4922 check_stripflags -wN \'..@*\' || check_stripflags -x
4923
4924 enabled neon_clobber_test &&
4925     check_ldflags -Wl,--wrap,avcodec_open2              \
4926                   -Wl,--wrap,avcodec_decode_audio4      \
4927                   -Wl,--wrap,avcodec_decode_video2      \
4928                   -Wl,--wrap,avcodec_decode_subtitle2   \
4929                   -Wl,--wrap,avcodec_encode_audio2      \
4930                   -Wl,--wrap,avcodec_encode_video2      \
4931                   -Wl,--wrap,avcodec_encode_subtitle    \
4932                   -Wl,--wrap,swr_convert                \
4933                   -Wl,--wrap,avresample_convert ||
4934     disable neon_clobber_test
4935
4936 enabled xmm_clobber_test &&
4937     check_ldflags -Wl,--wrap,avcodec_open2              \
4938                   -Wl,--wrap,avcodec_decode_audio4      \
4939                   -Wl,--wrap,avcodec_decode_video2      \
4940                   -Wl,--wrap,avcodec_decode_subtitle2   \
4941                   -Wl,--wrap,avcodec_encode_audio2      \
4942                   -Wl,--wrap,avcodec_encode_video       \
4943                   -Wl,--wrap,avcodec_encode_video2      \
4944                   -Wl,--wrap,avcodec_encode_subtitle    \
4945                   -Wl,--wrap,swr_convert                \
4946                   -Wl,--wrap,avresample_convert         \
4947                   -Wl,--wrap,sws_scale ||
4948     disable xmm_clobber_test
4949
4950 echo "X{};" > $TMPV
4951 if test_ldflags -Wl,--version-script,$TMPV; then
4952     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4953     check_cc <<EOF && enable symver_asm_label
4954 void ff_foo(void) __asm__ ("av_foo@VERSION");
4955 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4956 EOF
4957     check_cc <<EOF && enable symver_gnu_asm
4958 __asm__(".symver ff_foo,av_foo@VERSION");
4959 void ff_foo(void) {}
4960 EOF
4961 fi
4962
4963 if [ -z "$optflags" ]; then
4964     if enabled small; then
4965         optflags=$cflags_size
4966     elif enabled optimizations; then
4967         optflags=$cflags_speed
4968     else
4969         optflags=$cflags_noopt
4970     fi
4971 fi
4972
4973 check_optflags(){
4974     check_cflags "$@"
4975     enabled lto && check_ldflags "$@"
4976 }
4977
4978
4979 if enabled lto; then
4980     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4981     check_cflags  -flto
4982     check_ldflags -flto $cpuflags
4983     disable inline_asm_direct_symbol_refs
4984 fi
4985
4986 check_optflags $optflags
4987 check_optflags -fno-math-errno
4988 check_optflags -fno-signed-zeros
4989
4990 enabled ftrapv && check_cflags -ftrapv
4991
4992 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4993 int x;
4994 EOF
4995
4996
4997 if enabled icc; then
4998     # Just warnings, no remarks
4999     check_cflags -w1
5000     # -wd: Disable following warnings
5001     # 144, 167, 556: -Wno-pointer-sign
5002     # 188: enumerated type mixed with another type
5003     # 1292: attribute "foo" ignored
5004     # 1419: external declaration in primary source file
5005     # 10006: ignoring unknown option -fno-signed-zeros
5006     # 10148: ignoring unknown option -Wno-parentheses
5007     # 10156: ignoring option '-W'; no argument required
5008     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5009     # 11030: Warning unknown option --as-needed
5010     # 10156: ignoring option '-export'; no argument required
5011     check_ldflags -wd10156,11030
5012     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5013     enable ebp_available
5014     # The test above does not test linking
5015     enabled lto && disable symver_asm_label
5016     if enabled x86_32; then
5017         icc_version=$($cc -dumpversion)
5018         test ${icc_version%%.*} -ge 11 &&
5019             check_cflags -falign-stack=maintain-16-byte ||
5020             disable aligned_stack
5021     fi
5022 elif enabled ccc; then
5023     # disable some annoying warnings
5024     add_cflags -msg_disable bitnotint
5025     add_cflags -msg_disable mixfuncvoid
5026     add_cflags -msg_disable nonstandcast
5027     add_cflags -msg_disable unsupieee
5028 elif enabled gcc; then
5029     check_optflags -fno-tree-vectorize
5030     check_cflags -Werror=implicit-function-declaration
5031     check_cflags -Werror=missing-prototypes
5032     check_cflags -Werror=return-type
5033     check_cflags -Werror=vla
5034     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5035 elif enabled llvm_gcc; then
5036     check_cflags -mllvm -stack-alignment=16
5037 elif enabled clang; then
5038     check_cflags -mllvm -stack-alignment=16
5039     check_cflags -Qunused-arguments
5040     check_cflags -Werror=implicit-function-declaration
5041     check_cflags -Werror=missing-prototypes
5042     check_cflags -Werror=return-type
5043 elif enabled cparser; then
5044     add_cflags -Wno-missing-variable-declarations
5045     add_cflags -Wno-empty-statement
5046 elif enabled armcc; then
5047     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5048     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5049     # 2523: use of inline assembler is deprecated
5050     add_cflags -W${armcc_opt},--diag_suppress=2523
5051     add_cflags -W${armcc_opt},--diag_suppress=1207
5052     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5053     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5054     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5055     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5056 elif enabled tms470; then
5057     add_cflags -pds=824 -pds=837
5058     disable inline_asm
5059 elif enabled pathscale; then
5060     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5061 elif enabled_any msvc icl; then
5062     enabled x86_32 && disable aligned_stack
5063     enabled_all x86_32 debug && add_cflags -Oy-
5064     enabled debug && add_ldflags -debug
5065     enable pragma_deprecated
5066     if enabled icl; then
5067         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5068         # (correctly) on icl 13.x.
5069         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5070             add_cflags -Qansi-alias
5071         # Some inline asm is not compilable in debug
5072         if enabled debug; then
5073             disable ebp_available
5074             disable ebx_available
5075         fi
5076     fi
5077     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5078     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5079 fi
5080
5081 case $as_type in
5082     clang)
5083         add_asflags -Qunused-arguments
5084     ;;
5085 esac
5086
5087 case $ld_type in
5088     clang)
5089         check_ldflags -Qunused-arguments
5090     ;;
5091 esac
5092
5093 case $target_os in
5094     osf1)
5095         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5096     ;;
5097     plan9)
5098         add_cppflags -Dmain=plan9_main
5099     ;;
5100 esac
5101
5102 enable frame_thread_encoder
5103
5104 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5105
5106 check_deps $CONFIG_LIST       \
5107            $CONFIG_EXTRA      \
5108            $HAVE_LIST         \
5109            $ALL_COMPONENTS    \
5110
5111 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"
5112
5113
5114 if test $target_os = "haiku"; then
5115     disable memalign
5116     disable posix_memalign
5117 fi
5118
5119 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5120     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5121     enable dxva2_lib
5122
5123 ! enabled_any memalign posix_memalign aligned_malloc &&
5124     enabled_any $need_memalign && enable memalign_hack
5125
5126 # add_dep lib dep
5127 # -> enable ${lib}_deps_${dep}
5128 # -> add $dep to ${lib}_deps only once
5129 add_dep() {
5130     lib=$1
5131     dep=$2
5132     enabled "${lib}_deps_${dep}" && return 0
5133     enable  "${lib}_deps_${dep}"
5134     prepend "${lib}_deps" $dep
5135 }
5136
5137 # merge deps lib components
5138 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5139 merge_deps() {
5140     lib=$1
5141     shift
5142     for comp in $*; do
5143         enabled $comp || continue
5144         eval "dep=\"\$${comp}_deps\""
5145         for d in $dep; do
5146             add_dep $lib $d
5147         done
5148     done
5149 }
5150
5151 merge_deps libavfilter $FILTER_LIST
5152
5153 for thread in $THREADS_LIST; do
5154     if enabled $thread; then
5155         test -n "$thread_type" &&
5156             die "ERROR: Only one thread type must be selected." ||
5157             thread_type="$thread"
5158     fi
5159 done
5160
5161 # conditional library dependencies, in linking order
5162 enabled aconvert_filter     && prepend avfilter_deps "swresample"
5163 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5164 enabled aresample_filter    && prepend avfilter_deps "swresample"
5165 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5166 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5167 enabled decimate_filter     && prepend avfilter_deps "avcodec"
5168 enabled deshake_filter      && prepend avfilter_deps "avcodec"
5169 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5170 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5171 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5172 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5173 enabled mp_filter           && prepend avfilter_deps "avcodec"
5174 enabled pan_filter          && prepend avfilter_deps "swresample"
5175 enabled pp_filter           && prepend avfilter_deps "postproc"
5176 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5177 enabled resample_filter && prepend avfilter_deps "avresample"
5178 enabled sab_filter          && prepend avfilter_deps "swscale"
5179 enabled scale_filter    && prepend avfilter_deps "swscale"
5180 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5181 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5182 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5183
5184 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5185
5186 enabled opus_decoder    && prepend avcodec_deps "swresample"
5187
5188 expand_deps(){
5189     lib_deps=${1}_deps
5190     eval "deps=\$$lib_deps"
5191     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5192     unique $lib_deps
5193 }
5194
5195 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5196 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5197
5198 map 'expand_deps $v' $LIBRARY_LIST
5199
5200 echo "install prefix            $prefix"
5201 echo "source path               $source_path"
5202 echo "C compiler                $cc"
5203 echo "C library                 $libc_type"
5204 if test "$host_cc" != "$cc"; then
5205     echo "host C compiler           $host_cc"
5206     echo "host C library            $host_libc_type"
5207 fi
5208 echo "ARCH                      $arch ($cpu)"
5209 if test "$build_suffix" != ""; then
5210     echo "build suffix              $build_suffix"
5211 fi
5212 if test "$progs_suffix" != ""; then
5213     echo "progs suffix              $progs_suffix"
5214 fi
5215 if test "$extra_version" != ""; then
5216     echo "version string suffix     $extra_version"
5217 fi
5218 echo "big-endian                ${bigendian-no}"
5219 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5220 if enabled x86; then
5221     echo "${yasmexe}                      ${yasm-no}"
5222     echo "MMX enabled               ${mmx-no}"
5223     echo "MMXEXT enabled            ${mmxext-no}"
5224     echo "3DNow! enabled            ${amd3dnow-no}"
5225     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5226     echo "SSE enabled               ${sse-no}"
5227     echo "SSSE3 enabled             ${ssse3-no}"
5228     echo "AVX enabled               ${avx-no}"
5229     echo "XOP enabled               ${xop-no}"
5230     echo "FMA3 enabled              ${fma3-no}"
5231     echo "FMA4 enabled              ${fma4-no}"
5232     echo "i686 features enabled     ${i686-no}"
5233     echo "CMOV is fast              ${fast_cmov-no}"
5234     echo "EBX available             ${ebx_available-no}"
5235     echo "EBP available             ${ebp_available-no}"
5236 fi
5237 if enabled aarch64; then
5238     echo "NEON enabled              ${neon-no}"
5239     echo "VFP enabled               ${vfp-no}"
5240 fi
5241 if enabled arm; then
5242     echo "ARMv5TE enabled           ${armv5te-no}"
5243     echo "ARMv6 enabled             ${armv6-no}"
5244     echo "ARMv6T2 enabled           ${armv6t2-no}"
5245     echo "VFP enabled               ${vfp-no}"
5246     echo "NEON enabled              ${neon-no}"
5247     echo "THUMB enabled             ${thumb-no}"
5248 fi
5249 if enabled mips; then
5250     echo "MIPS FPU enabled          ${mipsfpu-no}"
5251     echo "MIPS32R2 enabled          ${mips32r2-no}"
5252     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5253     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5254 fi
5255 if enabled ppc; then
5256     echo "AltiVec enabled           ${altivec-no}"
5257     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5258     echo "dcbzl available           ${dcbzl-no}"
5259 fi
5260 echo "debug symbols             ${debug-no}"
5261 echo "strip symbols             ${stripping-no}"
5262 echo "optimize for size         ${small-no}"
5263 echo "optimizations             ${optimizations-no}"
5264 echo "static                    ${static-no}"
5265 echo "shared                    ${shared-no}"
5266 echo "postprocessing support    ${postproc-no}"
5267 echo "new filter support        ${avfilter-no}"
5268 echo "network support           ${network-no}"
5269 echo "threading support         ${thread_type-no}"
5270 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5271 echo "SDL support               ${sdl-no}"
5272 echo "opencl enabled            ${opencl-no}"
5273 echo "libzvbi enabled           ${libzvbi-no}"
5274 echo "texi2html enabled         ${texi2html-no}"
5275 echo "perl enabled              ${perl-no}"
5276 echo "pod2man enabled           ${pod2man-no}"
5277 echo "makeinfo enabled          ${makeinfo-no}"
5278 test -n "$random_seed" &&
5279     echo "random seed               ${random_seed}"
5280 echo
5281
5282 echo "External libraries:"
5283 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5284 echo
5285
5286 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5287     echo "Enabled ${type}s:"
5288     eval list=\$$(toupper $type)_LIST
5289     print_enabled '_*' $list | print_3_columns
5290     echo
5291 done
5292
5293 license="LGPL version 2.1 or later"
5294 if enabled nonfree; then
5295     license="nonfree and unredistributable"
5296 elif enabled gplv3; then
5297     license="GPL version 3 or later"
5298 elif enabled lgplv3; then
5299     license="LGPL version 3 or later"
5300 elif enabled gpl; then
5301     license="GPL version 2 or later"
5302 fi
5303
5304 echo "License: $license"
5305
5306 echo "Creating config.mak, config.h, and doc/config.texi..."
5307
5308 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5309
5310 enabled stripping || strip="echo skipping strip"
5311
5312 config_files="$TMPH config.mak doc/config.texi"
5313
5314 cat > config.mak <<EOF
5315 # Automatically generated by configure - do not modify!
5316 ifndef FFMPEG_CONFIG_MAK
5317 FFMPEG_CONFIG_MAK=1
5318 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5319 prefix=$prefix
5320 LIBDIR=\$(DESTDIR)$libdir
5321 SHLIBDIR=\$(DESTDIR)$shlibdir
5322 INCDIR=\$(DESTDIR)$incdir
5323 BINDIR=\$(DESTDIR)$bindir
5324 DATADIR=\$(DESTDIR)$datadir
5325 DOCDIR=\$(DESTDIR)$docdir
5326 MANDIR=\$(DESTDIR)$mandir
5327 SRC_PATH=$source_path
5328 ifndef MAIN_MAKEFILE
5329 SRC_PATH:=\$(SRC_PATH:.%=..%)
5330 endif
5331 CC_IDENT=$cc_ident
5332 ARCH=$arch
5333 CC=$cc
5334 CXX=$cxx
5335 AS=$as
5336 LD=$ld
5337 DEPCC=$dep_cc
5338 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5339 DEPAS=$as
5340 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5341 YASM=$yasmexe
5342 DEPYASM=$yasmexe
5343 AR=$ar
5344 ARFLAGS=$arflags
5345 AR_O=$ar_o
5346 RANLIB=$ranlib
5347 STRIP=$strip
5348 CP=cp -p
5349 LN_S=$ln_s
5350 CPPFLAGS=$CPPFLAGS
5351 CFLAGS=$CFLAGS
5352 CXXFLAGS=$CXXFLAGS
5353 ASFLAGS=$ASFLAGS
5354 AS_C=$AS_C
5355 AS_O=$AS_O
5356 CC_C=$CC_C
5357 CC_E=$CC_E
5358 CC_O=$CC_O
5359 CXX_C=$CXX_C
5360 CXX_O=$CXX_O
5361 LD_O=$LD_O
5362 LD_LIB=$LD_LIB
5363 LD_PATH=$LD_PATH
5364 DLLTOOL=$dlltool
5365 WINDRES=$windres
5366 DEPWINDRES=$dep_cc
5367 LDFLAGS=$LDFLAGS
5368 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5369 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5370 YASMFLAGS=$YASMFLAGS
5371 BUILDSUF=$build_suffix
5372 PROGSSUF=$progs_suffix
5373 FULLNAME=$FULLNAME
5374 LIBPREF=$LIBPREF
5375 LIBSUF=$LIBSUF
5376 LIBNAME=$LIBNAME
5377 SLIBPREF=$SLIBPREF
5378 SLIBSUF=$SLIBSUF
5379 EXESUF=$EXESUF
5380 EXTRA_VERSION=$extra_version
5381 CCDEP=$CCDEP
5382 CXXDEP=$CXXDEP
5383 CCDEP_FLAGS=$CCDEP_FLAGS
5384 ASDEP=$ASDEP
5385 ASDEP_FLAGS=$ASDEP_FLAGS
5386 CC_DEPFLAGS=$CC_DEPFLAGS
5387 AS_DEPFLAGS=$AS_DEPFLAGS
5388 HOSTCC=$host_cc
5389 HOSTLD=$host_ld
5390 HOSTCFLAGS=$host_cflags
5391 HOSTCPPFLAGS=$host_cppflags
5392 HOSTEXESUF=$HOSTEXESUF
5393 HOSTLDFLAGS=$host_ldflags
5394 HOSTLIBS=$host_libs
5395 DEPHOSTCC=$host_cc
5396 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5397 HOSTCCDEP=$HOSTCCDEP
5398 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5399 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5400 HOSTCC_C=$HOSTCC_C
5401 HOSTCC_O=$HOSTCC_O
5402 HOSTLD_O=$HOSTLD_O
5403 TARGET_EXEC=$target_exec $target_exec_args
5404 TARGET_PATH=$target_path
5405 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5406 CFLAGS-ffplay=$sdl_cflags
5407 ZLIB=$($ldflags_filter -lz)
5408 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5409 EXTRALIBS=$extralibs
5410 COMPAT_OBJS=$compat_objs
5411 EXEOBJS=$exeobjs
5412 INSTALL=$install
5413 LIBTARGET=${LIBTARGET}
5414 SLIBNAME=${SLIBNAME}
5415 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5416 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5417 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5418 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5419 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5420 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5421 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5422 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5423 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5424 NOREDZONE_FLAGS=$noredzone_flags
5425 EOF
5426
5427 get_version(){
5428     lcname=lib${1}
5429     name=$(toupper $lcname)
5430     file=$source_path/$lcname/version.h
5431     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5432     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5433     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5434     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5435     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5436     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5437 }
5438
5439 map 'get_version $v' $LIBRARY_LIST
5440
5441 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5442
5443 print_program_libs(){
5444     eval "program_libs=\$${1}_libs"
5445     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5446 }
5447
5448 map 'print_program_libs $v' $PROGRAM_LIST
5449
5450 cat > $TMPH <<EOF
5451 /* Automatically generated by configure - do not modify! */
5452 #ifndef FFMPEG_CONFIG_H
5453 #define FFMPEG_CONFIG_H
5454 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5455 #define FFMPEG_LICENSE "$(c_escape $license)"
5456 #define CONFIG_THIS_YEAR 2014
5457 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5458 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5459 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5460 #define av_restrict $_restrict
5461 #define EXTERN_PREFIX "${extern_prefix}"
5462 #define EXTERN_ASM ${extern_prefix}
5463 #define BUILDSUF "$build_suffix"
5464 #define SLIBSUF "$SLIBSUF"
5465 #define HAVE_MMX2 HAVE_MMXEXT
5466 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5467 EOF
5468
5469 test -n "$assert_level" &&
5470     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5471
5472 test -n "$malloc_prefix" &&
5473     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5474
5475 if enabled yasm; then
5476     append config_files $TMPASM
5477     printf '' >$TMPASM
5478 fi
5479
5480 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5481
5482
5483 mkdir -p doc
5484 echo "@c auto-generated by configure" > doc/config.texi
5485
5486 print_config ARCH_   "$config_files" $ARCH_LIST
5487 print_config HAVE_   "$config_files" $HAVE_LIST
5488 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5489                                      $CONFIG_EXTRA      \
5490                                      $ALL_COMPONENTS    \
5491
5492 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5493 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5494
5495 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5496 cp_if_changed $TMPH config.h
5497 touch .config
5498
5499 enabled yasm && cp_if_changed $TMPASM config.asm
5500
5501 cat > $TMPH <<EOF
5502 /* Generated by ffconf */
5503 #ifndef AVUTIL_AVCONFIG_H
5504 #define AVUTIL_AVCONFIG_H
5505 EOF
5506
5507 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5508
5509 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5510
5511 cp_if_changed $TMPH libavutil/avconfig.h
5512
5513 if test -n "$WARNINGS"; then
5514     printf "\n$WARNINGS"
5515     enabled fatal_warnings && exit 1
5516 fi
5517
5518 # build pkg-config files
5519
5520 lib_version(){
5521     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5522 }
5523
5524 pkgconfig_generate(){
5525     name=$1
5526     shortname=${name#lib}${build_suffix}
5527     comment=$2
5528     version=$3
5529     libs=$4
5530     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5531     requires=${requires%, }
5532     enabled ${name#lib} || return 0
5533     mkdir -p $name
5534     cat <<EOF > $name/$name${build_suffix}.pc
5535 prefix=$prefix
5536 exec_prefix=\${prefix}
5537 libdir=$libdir
5538 includedir=$incdir
5539
5540 Name: $name
5541 Description: $comment
5542 Version: $version
5543 Requires: $(enabled shared || echo $requires)
5544 Requires.private: $(enabled shared && echo $requires)
5545 Conflicts:
5546 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5547 Libs.private: $(enabled shared && echo $libs)
5548 Cflags: -I\${includedir}
5549 EOF
5550
5551 mkdir -p doc/examples/pc-uninstalled
5552 includedir=${source_path}
5553 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5554     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5555 prefix=
5556 exec_prefix=
5557 libdir=\${pcfiledir}/../../../$name
5558 includedir=${includedir}
5559
5560 Name: $name
5561 Description: $comment
5562 Version: $version
5563 Requires: $requires
5564 Conflicts:
5565 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5566 Cflags: -I\${includedir}
5567 EOF
5568 }
5569
5570 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5571 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5572 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5573 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5574 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5575 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5576 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs"
5577 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5578 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"