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   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --enable-x11grab         enable X11 grabbing [no]
 134   --disable-network        disable network support [no]
 135   --disable-dct            disable DCT code
 136   --disable-dwt            disable DWT code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142   --enable-dxva2           enable DXVA2 code
 143   --enable-vaapi           enable VAAPI code [autodetect]
 144   --enable-vda             enable VDA code   [autodetect]
 145   --enable-vdpau           enable VDPAU code [autodetect]
 146
 147 Individual component options:
 148   --disable-everything     disable all components listed below
 149   --disable-encoder=NAME   disable encoder NAME
 150   --enable-encoder=NAME    enable encoder NAME
 151   --disable-encoders       disable all encoders
 152   --disable-decoder=NAME   disable decoder NAME
 153   --enable-decoder=NAME    enable decoder NAME
 154   --disable-decoders       disable all decoders
 155   --disable-hwaccel=NAME   disable hwaccel NAME
 156   --enable-hwaccel=NAME    enable hwaccel NAME
 157   --disable-hwaccels       disable all hwaccels
 158   --disable-muxer=NAME     disable muxer NAME
 159   --enable-muxer=NAME      enable muxer NAME
 160   --disable-muxers         disable all muxers
 161   --disable-demuxer=NAME   disable demuxer NAME
 162   --enable-demuxer=NAME    enable demuxer NAME
 163   --disable-demuxers       disable all demuxers
 164   --enable-parser=NAME     enable parser NAME
 165   --disable-parser=NAME    disable parser NAME
 166   --disable-parsers        disable all parsers
 167   --enable-bsf=NAME        enable bitstream filter NAME
 168   --disable-bsf=NAME       disable bitstream filter NAME
 169   --disable-bsfs           disable all bitstream filters
 170   --enable-protocol=NAME   enable protocol NAME
 171   --disable-protocol=NAME  disable protocol NAME
 172   --disable-protocols      disable all protocols
 173   --enable-indev=NAME      enable input device NAME
 174   --disable-indev=NAME     disable input device NAME
 175   --disable-indevs         disable input devices
 176   --enable-outdev=NAME     enable output device NAME
 177   --disable-outdev=NAME    disable output device NAME
 178   --disable-outdevs        disable output devices
 179   --disable-devices        disable all devices
 180   --enable-filter=NAME     enable filter NAME
 181   --disable-filter=NAME    disable filter NAME
 182   --disable-filters        disable all filters
 183
 184 External library support:
 185   --enable-avisynth        enable reading of AVISynth script files [no]
 186   --enable-bzlib           enable bzlib [autodetect]
 187   --enable-fontconfig      enable fontconfig
 188   --enable-frei0r          enable frei0r video filtering
 189   --enable-gnutls          enable gnutls [no]
 190   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 191   --enable-libass          enable libass subtitles rendering [no]
 192   --enable-libbluray       enable BluRay reading using libbluray [no]
 193   --enable-libcaca         enable textual display using libcaca
 194   --enable-libcelt         enable CELT decoding via libcelt [no]
 195   --enable-libcdio         enable audio CD grabbing with libcdio
 196   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 197                            and libraw1394 [no]
 198   --enable-libfaac         enable AAC encoding via libfaac [no]
 199   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 200   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 201   --enable-libfreetype     enable libfreetype [no]
 202   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 203   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 204   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 205   --enable-libmodplug      enable ModPlug via libmodplug [no]
 206   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 207   --enable-libnut          enable NUT (de)muxing via libnut,
 208                            native (de)muxer exists [no]
 209   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 210   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 211   --enable-libopencv       enable video filtering via libopencv [no]
 212   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 213   --enable-libopus         enable Opus decoding via libopus [no]
 214   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 215   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 216   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 217   --enable-libsoxr         enable Include libsoxr resampling [no]
 218   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 219   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 220   --enable-libtheora       enable Theora encoding via libtheora [no]
 221   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 222   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 223   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 224   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 225   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 226   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 227                            native implementation exists [no]
 228   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
 229   --enable-libx264         enable H.264 encoding via x264 [no]
 230   --enable-libxavs         enable AVS encoding via xavs [no]
 231   --enable-libxvid         enable Xvid encoding via xvidcore,
 232                            native MPEG-4/Xvid encoder exists [no]
 233   --enable-openal          enable OpenAL 1.1 capture support [no]
 234   --enable-openssl         enable openssl [no]
 235   --enable-zlib            enable zlib [autodetect]
 236
 237 Advanced options (experts only):
 238   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 239   --enable-cross-compile   assume a cross-compiler is used
 240   --sysroot=PATH           root of cross-build tree
 241   --sysinclude=PATH        location of cross-build system headers
 242   --target-os=OS           compiler targets OS [$target_os]
 243   --target-exec=CMD        command to run executables on target
 244   --target-path=DIR        path to view of build directory on target
 245   --toolchain=NAME         set tool defaults according to NAME
 246   --nm=NM                  use nm tool NM [$nm_default]
 247   --ar=AR                  use archive tool AR [$ar_default]
 248   --as=AS                  use assembler AS [$as_default]
 249   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 250   --cc=CC                  use C compiler CC [$cc_default]
 251   --cxx=CXX                use C compiler CXX [$cxx_default]
 252   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 253   --ld=LD                  use linker LD [$ld_default]
 254   --host-cc=HOSTCC         use host C compiler HOSTCC
 255   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 256   --host-ld=HOSTLD         use host linker HOSTLD
 257   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 258   --host-libs=HLIBS        use libs HLIBS when linking for host
 259   --host-os=OS             compiler host OS [$target_os]
 260   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 261   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 262   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 263   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 264   --extra-version=STRING   version string suffix []
 265   --optflags=OPTFLAGS      override optimization-related compiler flags
 266   --build-suffix=SUFFIX    library name suffix []
 267   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 268   --progs-suffix=SUFFIX    program name suffix []
 269   --arch=ARCH              select architecture [$arch]
 270   --cpu=CPU                select the minimum required CPU (affects
 271                            instruction selection, may crash on older CPUs)
 272   --enable-pic             build position-independent code
 273   --enable-sram            allow use of on-chip SRAM
 274   --enable-thumb           compile for Thumb instruction set
 275   --disable-symver         disable symbol versioning
 276   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 277   --disable-safe-bitstream-reader
 278                            disable buffer boundary checking in bitreaders
 279                            (faster, but may crash)
 280   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 281   --enable-lto             use link-time optimization
 282
 283 Optimization options (experts only):
 284   --disable-asm            disable all assembler optimizations
 285   --disable-altivec        disable AltiVec optimizations
 286   --disable-amd3dnow       disable 3DNow! optimizations
 287   --disable-amd3dnowext    disable 3DNow! extended optimizations
 288   --disable-mmx            disable MMX optimizations
 289   --disable-mmxext         disable MMXEXT optimizations
 290   --disable-sse            disable SSE optimizations
 291   --disable-sse2           disable SSE2 optimizations
 292   --disable-sse3           disable SSE3 optimizations
 293   --disable-ssse3          disable SSSE3 optimizations
 294   --disable-sse4           disable SSE4 optimizations
 295   --disable-sse42          disable SSE4.2 optimizations
 296   --disable-avx            disable AVX optimizations
 297   --disable-fma4           disable FMA4 optimizations
 298   --disable-armv5te        disable armv5te optimizations
 299   --disable-armv6          disable armv6 optimizations
 300   --disable-armv6t2        disable armv6t2 optimizations
 301   --disable-vfp            disable VFP optimizations
 302   --disable-neon           disable NEON optimizations
 303   --disable-vis            disable VIS optimizations
 304   --disable-inline-asm     disable use of inline assembler
 305   --disable-yasm           disable use of yasm assembler
 306   --disable-mips32r2       disable MIPS32R2 optimizations
 307   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 308   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 309   --disable-mipsfpu        disable floating point MIPS optimizations
 310   --disable-fast-unaligned consider unaligned accesses slow
 311
 312 Developer options (useful when working on FFmpeg itself):
 313   --enable-coverage        build with test coverage instrumentation
 314   --disable-debug          disable debugging symbols
 315   --enable-debug=LEVEL     set the debug level [$debuglevel]
 316   --disable-optimizations  disable compiler optimizations
 317   --enable-extra-warnings  enable more compiler warnings
 318   --disable-stripping      disable stripping of executables and shared libraries
 319   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 320                            2 causes a slowdown at runtime.
 321   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 322   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 323                            leaks and errors, using the specified valgrind binary.
 324                            Cannot be combined with --target-exec
 325   --enable-ftrapv          Trap arithmetic overflows
 326   --samples=PATH           location of test samples for FATE, if not set use
 327                            \$FATE_SAMPLES at make invocation time.
 328   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 329                            should be used only for debugging purposes)
 330   --enable-random          randomly enable/disable components
 331   --disable-random
 332   --enable-random=LIST     randomly enable/disable specific components or
 333   --disable-random=LIST    component groups. LIST is a comma-separated list
 334                            of NAME[:PROB] entries where NAME is a component
 335                            (group) and PROB the probability associated with
 336                            NAME (default 0.5).
 337   --random-seed=VALUE      seed value for --enable/disable-random
 338
 339 NOTE: Object files are built at the place where configure is launched.
 340 EOF
 341   exit 0
 342 }
 343
 344 quotes='""'
 345
 346 log(){
 347     echo "$@" >> $logfile
 348 }
 349
 350 log_file(){
 351     log BEGIN $1
 352     pr -n -t $1 >> $logfile
 353     log END $1
 354 }
 355
 356 echolog(){
 357     log "$@"
 358     echo "$@"
 359 }
 360
 361 warn(){
 362     log "WARNING: $*"
 363     WARNINGS="${WARNINGS}WARNING: $*\n"
 364 }
 365
 366 die(){
 367     echolog "$@"
 368     cat <<EOF
 369
 370 If you think configure made a mistake, make sure you are using the latest
 371 version from Git.  If the latest version fails, report the problem to the
 372 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 373 EOF
 374     if disabled logging; then
 375         cat <<EOF
 376 Rerun configure with logging enabled (do not use --disable-logging), and
 377 include the log this produces with your report.
 378 EOF
 379     else
 380         cat <<EOF
 381 Include the log file "$logfile" produced by configure as this will help
 382 solving the problem.
 383 EOF
 384     fi
 385     exit 1
 386 }
 387
 388 # Avoid locale weirdness, besides we really just want to translate ASCII.
 389 toupper(){
 390     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 391 }
 392
 393 tolower(){
 394     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 395 }
 396
 397 c_escape(){
 398     echo "$*" | sed 's/["\\]/\\\0/g'
 399 }
 400
 401 sh_quote(){
 402     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 403     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 404     echo "$v"
 405 }
 406
 407 cleanws(){
 408     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 409 }
 410
 411 filter(){
 412     pat=$1
 413     shift
 414     for v; do
 415         eval "case $v in $pat) echo $v ;; esac"
 416     done
 417 }
 418
 419 filter_out(){
 420     pat=$1
 421     shift
 422     for v; do
 423         eval "case $v in $pat) ;; *) echo $v ;; esac"
 424     done
 425 }
 426
 427 map(){
 428     m=$1
 429     shift
 430     for v; do eval $m; done
 431 }
 432
 433 add_suffix(){
 434     suffix=$1
 435     shift
 436     for v; do echo ${v}${suffix}; done
 437 }
 438
 439 set_all(){
 440     value=$1
 441     shift
 442     for var in $*; do
 443         eval $var=$value
 444     done
 445 }
 446
 447 set_weak(){
 448     value=$1
 449     shift
 450     for var; do
 451         eval : \${$var:=$value}
 452     done
 453 }
 454
 455 set_safe(){
 456     var=$1
 457     shift
 458     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 459 }
 460
 461 get_safe(){
 462     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 463 }
 464
 465 pushvar(){
 466     for var in $*; do
 467         eval level=\${${var}_level:=0}
 468         eval ${var}_${level}="\$$var"
 469         eval ${var}_level=$(($level+1))
 470     done
 471 }
 472
 473 popvar(){
 474     for var in $*; do
 475         eval level=\${${var}_level:-0}
 476         test $level = 0 && continue
 477         eval level=$(($level-1))
 478         eval $var="\${${var}_${level}}"
 479         eval ${var}_level=$level
 480         eval unset ${var}_${level}
 481     done
 482 }
 483
 484 enable(){
 485     set_all yes $*
 486 }
 487
 488 disable(){
 489     set_all no $*
 490 }
 491
 492 enable_weak(){
 493     set_weak yes $*
 494 }
 495
 496 disable_weak(){
 497     set_weak no $*
 498 }
 499
 500 enable_safe(){
 501     for var; do
 502         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 503     done
 504 }
 505
 506 disable_safe(){
 507     for var; do
 508         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 509     done
 510 }
 511
 512 do_enable_deep(){
 513     for var; do
 514         enabled $var && continue
 515         eval sel="\$${var}_select"
 516         eval sgs="\$${var}_suggest"
 517         pushvar var sgs
 518         enable_deep $sel
 519         popvar sgs
 520         enable_deep_weak $sgs
 521         popvar var
 522     done
 523 }
 524
 525 enable_deep(){
 526     do_enable_deep $*
 527     enable $*
 528 }
 529
 530 enable_deep_weak(){
 531     do_enable_deep $*
 532     enable_weak $*
 533 }
 534
 535 enabled(){
 536     test "${1#!}" = "$1" && op== || op=!=
 537     eval test "x\$${1#!}" $op "xyes"
 538 }
 539
 540 disabled(){
 541     test "${1#!}" = "$1" && op== || op=!=
 542     eval test "x\$${1#!}" $op "xno"
 543 }
 544
 545 enabled_all(){
 546     for opt; do
 547         enabled $opt || return 1
 548     done
 549 }
 550
 551 disabled_all(){
 552     for opt; do
 553         disabled $opt || return 1
 554     done
 555 }
 556
 557 enabled_any(){
 558     for opt; do
 559         enabled $opt && return 0
 560     done
 561 }
 562
 563 disabled_any(){
 564     for opt; do
 565         disabled $opt && return 0
 566     done
 567     return 1
 568 }
 569
 570 set_default(){
 571     for opt; do
 572         eval : \${$opt:=\$${opt}_default}
 573     done
 574 }
 575
 576 is_in(){
 577     value=$1
 578     shift
 579     for var in $*; do
 580         [ $var = $value ] && return 0
 581     done
 582     return 1
 583 }
 584
 585 do_check_deps(){
 586     for cfg; do
 587         cfg="${cfg#!}"
 588         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 589         disabled ${cfg}_checking && continue
 590         enable ${cfg}_checking
 591         append allopts $cfg
 592
 593         eval dep_all="\$${cfg}_deps"
 594         eval dep_any="\$${cfg}_deps_any"
 595         eval dep_sel="\$${cfg}_select"
 596         eval dep_sgs="\$${cfg}_suggest"
 597         eval dep_ifa="\$${cfg}_if"
 598         eval dep_ifn="\$${cfg}_if_any"
 599
 600         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 601         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 602         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 603
 604         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 605         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 606         enabled_all  $dep_all || disable $cfg
 607         enabled_any  $dep_any || disable $cfg
 608         disabled_any $dep_sel && disable $cfg
 609
 610         if enabled $cfg; then
 611             enable_deep $dep_sel
 612             enable_deep_weak $dep_sgs
 613         fi
 614
 615         disable ${cfg}_checking
 616     done
 617 }
 618
 619 check_deps(){
 620     unset allopts
 621
 622     do_check_deps "$@"
 623
 624     for cfg in $allopts; do
 625         enabled $cfg || continue
 626         eval dep_extralibs="\$${cfg}_extralibs"
 627         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 628     done
 629 }
 630
 631 print_config(){
 632     pfx=$1
 633     files=$2
 634     shift 2
 635     map 'eval echo "$v \${$v:-no}"' "$@" |
 636     awk "BEGIN { split(\"$files\", files) }
 637         {
 638             c = \"$pfx\" toupper(\$1);
 639             v = \$2;
 640             sub(/yes/, 1, v);
 641             sub(/no/,  0, v);
 642             for (f in files) {
 643                 file = files[f];
 644                 if (file ~ /\\.h\$/) {
 645                     printf(\"#define %s %d\\n\", c, v) >>file;
 646                 } else if (file ~ /\\.asm\$/) {
 647                     printf(\"%%define %s %d\\n\", c, v) >>file;
 648                 } else if (file ~ /\\.mak\$/) {
 649                     n = -v ? \"\" : \"!\";
 650                     printf(\"%s%s=yes\\n\", n, c) >>file;
 651                 }
 652             }
 653         }"
 654 }
 655
 656 print_enabled(){
 657     suf=$1
 658     shift
 659     for v; do
 660         enabled $v && printf "%s\n" ${v%$suf};
 661     done
 662 }
 663
 664 append(){
 665     var=$1
 666     shift
 667     eval "$var=\"\$$var $*\""
 668 }
 669
 670 prepend(){
 671     var=$1
 672     shift
 673     eval "$var=\"$* \$$var\""
 674 }
 675
 676 add_cppflags(){
 677     append CPPFLAGS "$@"
 678 }
 679
 680 add_cflags(){
 681     append CFLAGS $($cflags_filter "$@")
 682 }
 683
 684 add_cxxflags(){
 685     append CXXFLAGS $($cflags_filter "$@")
 686 }
 687
 688 add_asflags(){
 689     append ASFLAGS $($asflags_filter "$@")
 690 }
 691
 692 add_ldflags(){
 693     append LDFLAGS $($ldflags_filter "$@")
 694 }
 695
 696 add_extralibs(){
 697     prepend extralibs $($ldflags_filter "$@")
 698 }
 699
 700 add_host_cflags(){
 701     append host_cflags $($host_cflags_filter "$@")
 702 }
 703
 704 add_host_ldflags(){
 705     append host_ldflags $($host_ldflags_filter "$@")
 706 }
 707
 708 add_compat(){
 709     append compat_objs $1
 710     shift
 711     map 'add_cppflags -D$v' "$@"
 712 }
 713
 714 check_cmd(){
 715     log "$@"
 716     "$@" >> $logfile 2>&1
 717 }
 718
 719 cc_o(){
 720     eval printf '%s\\n' $CC_O
 721 }
 722
 723 cc_e(){
 724     eval printf '%s\\n' $CC_E
 725 }
 726
 727 check_cc(){
 728     log check_cc "$@"
 729     cat > $TMPC
 730     log_file $TMPC
 731     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 732 }
 733
 734 check_cxx(){
 735     log check_cxx "$@"
 736     cat > $TMPCPP
 737     log_file $TMPCPP
 738     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 739 }
 740
 741 check_cpp(){
 742     log check_cpp "$@"
 743     cat > $TMPC
 744     log_file $TMPC
 745     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 746 }
 747
 748 as_o(){
 749     eval printf '%s\\n' $AS_O
 750 }
 751
 752 check_as(){
 753     log check_as "$@"
 754     cat > $TMPS
 755     log_file $TMPS
 756     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 757 }
 758
 759 check_inline_asm(){
 760     log check_inline_asm "$@"
 761     name="$1"
 762     code="$2"
 763     shift 2
 764     disable $name
 765     check_cc "$@" <<EOF && enable $name
 766 void foo(void){ __asm__ volatile($code); }
 767 EOF
 768 }
 769
 770 check_insn(){
 771     log check_insn "$@"
 772     check_inline_asm ${1}_inline "\"$2\""
 773     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 774 }
 775
 776 check_yasm(){
 777     log check_yasm "$@"
 778     echo "$1" > $TMPS
 779     log_file $TMPS
 780     shift 1
 781     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 782 }
 783
 784 ld_o(){
 785     eval printf '%s\\n' $LD_O
 786 }
 787
 788 check_ld(){
 789     log check_ld "$@"
 790     type=$1
 791     shift 1
 792     flags=$(filter_out '-l*' $@)
 793     libs=$(filter '-l*' $@)
 794     check_$type $($cflags_filter $flags) || return
 795     flags=$($ldflags_filter $flags)
 796     libs=$($ldflags_filter $libs)
 797     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 798 }
 799
 800 check_code(){
 801     log check_code "$@"
 802     check=$1
 803     headers=$2
 804     code=$3
 805     shift 3
 806     {
 807         for hdr in $headers; do
 808             echo "#include <$hdr>"
 809         done
 810         echo "int main(void) { $code; return 0; }"
 811     } | check_$check "$@"
 812 }
 813
 814 check_cppflags(){
 815     log check_cppflags "$@"
 816     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 817 int x;
 818 EOF
 819 }
 820
 821 check_cflags(){
 822     log check_cflags "$@"
 823     set -- $($cflags_filter "$@")
 824     check_cc "$@" <<EOF && append CFLAGS "$@"
 825 int x;
 826 EOF
 827 }
 828
 829 check_cxxflags(){
 830     log check_cxxflags "$@"
 831     set -- $($cflags_filter "$@")
 832     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 833 int x;
 834 EOF
 835 }
 836
 837 test_ldflags(){
 838     log test_ldflags "$@"
 839     check_ld "cc" "$@" <<EOF
 840 int main(void){ return 0; }
 841 EOF
 842 }
 843
 844 check_ldflags(){
 845     log check_ldflags "$@"
 846     test_ldflags "$@" && add_ldflags "$@"
 847 }
 848
 849 check_header(){
 850     log check_header "$@"
 851     header=$1
 852     shift
 853     disable_safe $header
 854     check_cpp "$@" <<EOF && enable_safe $header
 855 #include <$header>
 856 int x;
 857 EOF
 858 }
 859
 860 check_func(){
 861     log check_func "$@"
 862     func=$1
 863     shift
 864     disable $func
 865     check_ld "cc" "$@" <<EOF && enable $func
 866 extern int $func();
 867 int main(void){ $func(); }
 868 EOF
 869 }
 870
 871 check_mathfunc(){
 872     log check_mathfunc "$@"
 873     func=$1
 874     narg=$2
 875     shift 2
 876     test $narg = 2 && args="f, g" || args="f"
 877     disable $func
 878     check_ld "cc" "$@" <<EOF && enable $func
 879 #include <math.h>
 880 float foo(float f, float g) { return $func($args); }
 881 int main(void){ return (int) foo; }
 882 EOF
 883 }
 884
 885 check_func_headers(){
 886     log check_func_headers "$@"
 887     headers=$1
 888     funcs=$2
 889     shift 2
 890     {
 891         for hdr in $headers; do
 892             echo "#include <$hdr>"
 893         done
 894         for func in $funcs; do
 895             echo "long check_$func(void) { return (long) $func; }"
 896         done
 897         echo "int main(void) { return 0; }"
 898     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 899 }
 900
 901 check_class_headers_cpp(){
 902     log check_class_headers_cpp "$@"
 903     headers=$1
 904     classes=$2
 905     shift 2
 906     {
 907         for hdr in $headers; do
 908             echo "#include <$hdr>"
 909         done
 910         echo "int main(void) { "
 911         i=1
 912         for class in $classes; do
 913             echo "$class obj$i;"
 914             i=$(expr $i + 1)
 915         done
 916         echo "return 0; }"
 917     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 918 }
 919
 920 check_cpp_condition(){
 921     log check_cpp_condition "$@"
 922     header=$1
 923     condition=$2
 924     shift 2
 925     check_cpp "$@" <<EOF
 926 #include <$header>
 927 #if !($condition)
 928 #error "unsatisfied condition: $condition"
 929 #endif
 930 EOF
 931 }
 932
 933 check_lib(){
 934     log check_lib "$@"
 935     header="$1"
 936     func="$2"
 937     shift 2
 938     check_header $header && check_func $func "$@" && add_extralibs "$@"
 939 }
 940
 941 check_lib2(){
 942     log check_lib2 "$@"
 943     headers="$1"
 944     funcs="$2"
 945     shift 2
 946     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 947 }
 948
 949 check_lib_cpp(){
 950     log check_lib_cpp "$@"
 951     headers="$1"
 952     classes="$2"
 953     shift 2
 954     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 955 }
 956
 957 check_pkg_config(){
 958     log check_pkg_config "$@"
 959     pkg="$1"
 960     headers="$2"
 961     funcs="$3"
 962     shift 3
 963     $pkg_config --exists $pkg 2>/dev/null || return
 964     pkg_cflags=$($pkg_config --cflags $pkg)
 965     pkg_libs=$($pkg_config --libs $pkg)
 966     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 967         set_safe ${pkg}_cflags $pkg_cflags   &&
 968         set_safe ${pkg}_libs   $pkg_libs
 969 }
 970
 971 check_exec(){
 972     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 973 }
 974
 975 check_exec_crash(){
 976     code=$(cat)
 977
 978     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 979     # are safe but may not be available everywhere.  Thus we use
 980     # raise(SIGTERM) instead.  The check is run in a subshell so we
 981     # can redirect the "Terminated" message from the shell.  SIGBUS
 982     # is not defined by standard C so it is used conditionally.
 983
 984     (check_exec "$@") >> $logfile 2>&1 <<EOF
 985 #include <signal.h>
 986 static void sighandler(int sig){
 987     raise(SIGTERM);
 988 }
 989 int func(void){
 990     $code
 991 }
 992 int (*func_ptr)(void) = func;
 993 int main(void){
 994     signal(SIGILL, sighandler);
 995     signal(SIGFPE, sighandler);
 996     signal(SIGSEGV, sighandler);
 997 #ifdef SIGBUS
 998     signal(SIGBUS, sighandler);
 999 #endif
1000     return func_ptr();
1001 }
1002 EOF
1003 }
1004
1005 check_type(){
1006     log check_type "$@"
1007     headers=$1
1008     type=$2
1009     shift 2
1010     disable_safe "$type"
1011     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1012 }
1013
1014 check_struct(){
1015     log check_type "$@"
1016     headers=$1
1017     struct=$2
1018     member=$3
1019     shift 3
1020     disable_safe "${struct}_${member}"
1021     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1022         enable_safe "${struct}_${member}"
1023 }
1024
1025 require(){
1026     name="$1"
1027     header="$2"
1028     func="$3"
1029     shift 3
1030     check_lib $header $func "$@" || die "ERROR: $name not found"
1031 }
1032
1033 require2(){
1034     name="$1"
1035     headers="$2"
1036     func="$3"
1037     shift 3
1038     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1039 }
1040
1041 require_cpp(){
1042     name="$1"
1043     headers="$2"
1044     classes="$3"
1045     shift 3
1046     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1047 }
1048
1049 require_pkg_config(){
1050     pkg="$1"
1051     check_pkg_config "$@" || die "ERROR: $pkg not found"
1052     add_cflags    $(get_safe ${pkg}_cflags)
1053     add_extralibs $(get_safe ${pkg}_libs)
1054 }
1055
1056 hostcc_o(){
1057     eval printf '%s\\n' $HOSTCC_O
1058 }
1059
1060 check_host_cc(){
1061     log check_host_cc "$@"
1062     cat > $TMPC
1063     log_file $TMPC
1064     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1065 }
1066
1067 check_host_cflags(){
1068     log check_host_cflags "$@"
1069     set -- $($host_cflags_filter "$@")
1070     check_host_cc "$@" <<EOF && append host_cflags "$@"
1071 int x;
1072 EOF
1073 }
1074
1075 apply(){
1076     file=$1
1077     shift
1078     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1079 }
1080
1081 cp_if_changed(){
1082     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1083     mkdir -p "$(dirname $2)"
1084     $cp_f "$1" "$2"
1085 }
1086
1087 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1088 # system-dependent things.
1089
1090 COMPONENT_LIST="
1091     bsfs
1092     decoders
1093     demuxers
1094     encoders
1095     filters
1096     hwaccels
1097     indevs
1098     muxers
1099     outdevs
1100     parsers
1101     protocols
1102 "
1103
1104 DOCUMENT_LIST="
1105     doc
1106     htmlpages
1107     manpages
1108     podpages
1109     txtpages
1110 "
1111
1112 LIBRARY_LIST="
1113     avcodec
1114     avdevice
1115     avfilter
1116     avformat
1117     avresample
1118     avutil
1119     postproc
1120     swresample
1121     swscale
1122 "
1123
1124 PROGRAM_LIST="
1125     ffplay
1126     ffprobe
1127     ffserver
1128     ffmpeg
1129 "
1130
1131 CONFIG_LIST="
1132     $COMPONENT_LIST
1133     $DOCUMENT_LIST
1134     $LIBRARY_LIST
1135     $PROGRAM_LIST
1136     avisynth
1137     bzlib
1138     crystalhd
1139     dct
1140     dwt
1141     dxva2
1142     fast_unaligned
1143     fft
1144     fontconfig
1145     frei0r
1146     ftrapv
1147     gnutls
1148     gpl
1149     gray
1150     hardcoded_tables
1151     incompatible_fork_abi
1152     libaacplus
1153     libass
1154     libbluray
1155     libcaca
1156     libcdio
1157     libcelt
1158     libdc1394
1159     libfaac
1160     libfdk_aac
1161     libflite
1162     libfreetype
1163     libgsm
1164     libiec61883
1165     libilbc
1166     libmodplug
1167     libmp3lame
1168     libnut
1169     libopencore_amrnb
1170     libopencore_amrwb
1171     libopencv
1172     libopenjpeg
1173     libopus
1174     libpulse
1175     librtmp
1176     libschroedinger
1177     libsoxr
1178     libspeex
1179     libstagefright_h264
1180     libtheora
1181     libtwolame
1182     libutvideo
1183     libv4l2
1184     libvo_aacenc
1185     libvo_amrwbenc
1186     libvorbis
1187     libvpx
1188     libx264
1189     libxavs
1190     libxvid
1191     lsp
1192     lzo
1193     mdct
1194     memalign_hack
1195     memory_poisoning
1196     network
1197     nonfree
1198     openal
1199     openssl
1200     pic
1201     rdft
1202     runtime_cpudetect
1203     safe_bitstream_reader
1204     shared
1205     small
1206     sram
1207     static
1208     swscale_alpha
1209     thumb
1210     vaapi
1211     vda
1212     vdpau
1213     version3
1214     xmm_clobber_test
1215     x11grab
1216     zlib
1217 "
1218
1219 THREADS_LIST='
1220     pthreads
1221     w32threads
1222     os2threads
1223 '
1224
1225 ARCH_LIST='
1226     aarch64
1227     alpha
1228     arm
1229     avr32
1230     avr32_ap
1231     avr32_uc
1232     bfin
1233     ia64
1234     m68k
1235     mips
1236     mips64
1237     parisc
1238     ppc
1239     ppc64
1240     s390
1241     sh4
1242     sparc
1243     sparc64
1244     tilegx
1245     tilepro
1246     tomi
1247     x86
1248     x86_32
1249     x86_64
1250 '
1251
1252 ARCH_EXT_LIST_ARM='
1253     armv5te
1254     armv6
1255     armv6t2
1256     neon
1257     vfp
1258     vfpv3
1259 '
1260
1261 ARCH_EXT_LIST_X86='
1262     amd3dnow
1263     amd3dnowext
1264     avx
1265     fma4
1266     mmx
1267     mmxext
1268     sse
1269     sse2
1270     sse3
1271     sse4
1272     sse42
1273     ssse3
1274 '
1275
1276 ARCH_EXT_LIST="
1277     $ARCH_EXT_LIST_ARM
1278     $ARCH_EXT_LIST_X86
1279     altivec
1280     ppc4xx
1281     vis
1282     mipsfpu
1283     mips32r2
1284     mipsdspr1
1285     mipsdspr2
1286 "
1287
1288 HAVE_LIST_CMDLINE='
1289     inline_asm
1290     symver
1291     yasm
1292 '
1293
1294 HAVE_LIST_PUB='
1295     bigendian
1296     fast_unaligned
1297     incompatible_fork_abi
1298 '
1299
1300 MATH_FUNCS="
1301     atanf
1302     atan2f
1303     cbrtf
1304     cosf
1305     exp2
1306     exp2f
1307     expf
1308     isinf
1309     isnan
1310     ldexpf
1311     llrint
1312     llrintf
1313     log2
1314     log2f
1315     log10f
1316     lrint
1317     lrintf
1318     powf
1319     rint
1320     round
1321     roundf
1322     sinf
1323     trunc
1324     truncf
1325 "
1326
1327 HAVE_LIST="
1328     $ARCH_EXT_LIST
1329     $(add_suffix _external $ARCH_EXT_LIST)
1330     $(add_suffix _inline   $ARCH_EXT_LIST)
1331     $HAVE_LIST_CMDLINE
1332     $HAVE_LIST_PUB
1333     $THREADS_LIST
1334     $MATH_FUNCS
1335     access
1336     aligned_malloc
1337     aligned_stack
1338     alsa_asoundlib_h
1339     altivec_h
1340     arpa_inet_h
1341     asm_mod_q
1342     asm_mod_y
1343     asm_types_h
1344     attribute_may_alias
1345     attribute_packed
1346     clock_gettime
1347     closesocket
1348     cmov
1349     CommandLineToArgvW
1350     cpunop
1351     CryptGenRandom
1352     dcbzl
1353     dev_bktr_ioctl_bt848_h
1354     dev_bktr_ioctl_meteor_h
1355     dev_ic_bt8xx_h
1356     dev_video_bktr_ioctl_bt848_h
1357     dev_video_meteor_ioctl_meteor_h
1358     direct_h
1359     dlfcn_h
1360     dlopen
1361     dos_paths
1362     dxva_h
1363     ebp_available
1364     ebx_available
1365     fast_64bit
1366     fast_clz
1367     fast_cmov
1368     fcntl
1369     fork
1370     getaddrinfo
1371     gethrtime
1372     getopt
1373     GetProcessAffinityMask
1374     GetProcessMemoryInfo
1375     GetProcessTimes
1376     GetSystemTimeAsFileTime
1377     getrusage
1378     getservbyport
1379     gettimeofday
1380     glob
1381     gnu_as
1382     ibm_asm
1383     inet_aton
1384     io_h
1385     isatty
1386     jack_port_get_latency_range
1387     kbhit
1388     ldbrx
1389     libdc1394_1
1390     libdc1394_2
1391     local_aligned_16
1392     local_aligned_8
1393     localtime_r
1394     loongson
1395     lzo1x_999_compress
1396     machine_ioctl_bt848_h
1397     machine_ioctl_meteor_h
1398     makeinfo
1399     malloc_h
1400     MapViewOfFile
1401     memalign
1402     mkstemp
1403     mm_empty
1404     mmap
1405     mprotect
1406     msvcrt
1407     nanosleep
1408     openjpeg_1_5_openjpeg_h
1409     PeekNamedPipe
1410     perl
1411     pod2man
1412     poll_h
1413     posix_memalign
1414     pthread_cancel
1415     rdtsc
1416     rsync_contimeout
1417     sched_getaffinity
1418     sdl
1419     sdl_video_size
1420     SetConsoleTextAttribute
1421     setmode
1422     setrlimit
1423     Sleep
1424     sndio_h
1425     socklen_t
1426     soundcard_h
1427     strerror_r
1428     struct_addrinfo
1429     struct_group_source_req
1430     struct_ip_mreq_source
1431     struct_ipv6_mreq
1432     struct_pollfd
1433     struct_rusage_ru_maxrss
1434     struct_sctp_event_subscribe
1435     struct_sockaddr_in6
1436     struct_sockaddr_sa_len
1437     struct_sockaddr_storage
1438     struct_v4l2_frmivalenum_discrete
1439     symver_asm_label
1440     symver_gnu_asm
1441     sysconf
1442     sysctl
1443     sys_mman_h
1444     sys_param_h
1445     sys_resource_h
1446     sys_select_h
1447     sys_soundcard_h
1448     sys_time_h
1449     sys_videoio_h
1450     termios_h
1451     texi2html
1452     threads
1453     unistd_h
1454     usleep
1455     vfp_args
1456     VirtualAlloc
1457     windows_h
1458     winsock2_h
1459     xform_asm
1460     xmm_clobbers
1461 "
1462
1463 # options emitted with CONFIG_ prefix but not available on the command line
1464 CONFIG_EXTRA="
1465     aandcttables
1466     ac3dsp
1467     error_resilience
1468     gcrypt
1469     golomb
1470     gplv3
1471     h264chroma
1472     h264dsp
1473     h264pred
1474     h264qpel
1475     huffman
1476     lgplv3
1477     lpc
1478     mpegaudio
1479     mpegaudiodsp
1480     mpegvideo
1481     mpegvideoenc
1482     nettle
1483     rangecoder
1484     rtpdec
1485     rtpenc_chain
1486     sinewin
1487     videodsp
1488     vp3dsp
1489 "
1490
1491 CMDLINE_SELECT="
1492     $ARCH_EXT_LIST
1493     $CONFIG_LIST
1494     $HAVE_LIST_CMDLINE
1495     $THREADS_LIST
1496     asm
1497     coverage
1498     cross_compile
1499     debug
1500     extra_warnings
1501     logging
1502     lto
1503     optimizations
1504     stripping
1505 "
1506
1507 PATHS_LIST='
1508     bindir
1509     datadir
1510     incdir
1511     libdir
1512     mandir
1513     prefix
1514     shlibdir
1515 '
1516
1517 CMDLINE_SET="
1518     $PATHS_LIST
1519     ar
1520     arch
1521     as
1522     assert_level
1523     build_suffix
1524     cc
1525     cpu
1526     cross_prefix
1527     cxx
1528     dep_cc
1529     extra_version
1530     host_cc
1531     host_cflags
1532     host_ld
1533     host_ldflags
1534     host_libs
1535     host_os
1536     install
1537     ld
1538     logfile
1539     malloc_prefix
1540     nm
1541     optflags
1542     pkg_config
1543     progs_suffix
1544     random_seed
1545     samples
1546     strip
1547     sysinclude
1548     sysroot
1549     target_exec
1550     target_os
1551     target_path
1552     toolchain
1553     valgrind
1554     yasmexe
1555 "
1556
1557 CMDLINE_APPEND="
1558     extra_cflags
1559     extra_cxxflags
1560 "
1561
1562 # code dependency declarations
1563
1564 # architecture extensions
1565
1566 armv5te_deps="arm"
1567 armv6_deps="arm"
1568 armv6t2_deps="arm"
1569 neon_deps="arm"
1570 vfp_deps="arm"
1571 vfpv3_deps="vfp"
1572
1573 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1574
1575 mipsfpu_deps="mips"
1576 mips32r2_deps="mips"
1577 mipsdspr1_deps="mips"
1578 mipsdspr2_deps="mips"
1579
1580 altivec_deps="ppc"
1581 ppc4xx_deps="ppc"
1582
1583 vis_deps="sparc"
1584
1585 x86_64_suggest="cmov fast_cmov"
1586
1587 amd3dnow_deps="mmx"
1588 amd3dnowext_deps="amd3dnow"
1589 mmx_deps="x86"
1590 mmxext_deps="mmx"
1591 sse_deps="mmxext"
1592 sse2_deps="sse"
1593 sse3_deps="sse2"
1594 ssse3_deps="sse3"
1595 sse4_deps="ssse3"
1596 sse42_deps="sse4"
1597 avx_deps="sse42"
1598 fma4_deps="avx"
1599
1600 mmx_external_deps="yasm"
1601 mmx_inline_deps="inline_asm"
1602 mmx_suggest="mmx_external mmx_inline"
1603
1604 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1605     eval dep=\$${ext}_deps
1606     eval ${ext}_external_deps='"${dep}_external"'
1607     eval ${ext}_inline_deps='"${dep}_inline"'
1608     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1609 done
1610
1611 aligned_stack_if_any="ppc x86"
1612 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1613 fast_clz_if_any="alpha avr32 mips ppc x86"
1614 fast_unaligned_if_any="ppc x86"
1615
1616 inline_asm_deps="!tms470"
1617 need_memalign="altivec neon sse"
1618
1619 symver_if_any="symver_asm_label symver_gnu_asm"
1620
1621 log2_deps="!msvcrt"
1622
1623 # subsystems
1624 dct_select="rdft"
1625 mdct_select="fft"
1626 rdft_select="fft"
1627 mpegaudio_select="mpegaudiodsp"
1628 mpegaudiodsp_select="dct"
1629 mpegvideo_select="videodsp"
1630 mpegvideoenc_select="mpegvideo"
1631
1632 # decoders / encoders
1633 aac_decoder_select="mdct sinewin"
1634 aac_encoder_select="mdct sinewin"
1635 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1636 ac3_decoder_select="mdct ac3dsp ac3_parser"
1637 ac3_encoder_select="mdct ac3dsp"
1638 ac3_fixed_encoder_select="mdct ac3dsp"
1639 alac_encoder_select="lpc"
1640 amrnb_decoder_select="lsp"
1641 amrwb_decoder_select="lsp"
1642 amv_encoder_select="aandcttables"
1643 atrac1_decoder_select="mdct sinewin"
1644 atrac3_decoder_select="mdct"
1645 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1646 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1647 cavs_decoder_select="golomb mpegvideo"
1648 comfortnoise_encoder_select="lpc"
1649 cook_decoder_select="mdct sinewin"
1650 cscd_decoder_select="lzo"
1651 cscd_decoder_suggest="zlib"
1652 dca_decoder_select="mdct"
1653 dirac_decoder_select="dwt golomb videodsp"
1654 dnxhd_encoder_select="aandcttables mpegvideoenc"
1655 dxa_decoder_select="zlib"
1656 eac3_decoder_select="ac3_decoder"
1657 eac3_encoder_select="ac3_encoder"
1658 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1659 eatgq_decoder_select="aandcttables"
1660 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1661 exr_decoder_select="zlib"
1662 ffv1_decoder_select="golomb rangecoder"
1663 ffv1_encoder_select="rangecoder"
1664 ffvhuff_encoder_select="huffman"
1665 flac_decoder_select="golomb"
1666 flac_encoder_select="golomb lpc"
1667 flashsv_decoder_select="zlib"
1668 flashsv_encoder_select="zlib"
1669 flashsv2_encoder_select="zlib"
1670 flashsv2_decoder_select="zlib"
1671 flv_decoder_select="h263_decoder"
1672 flv_encoder_select="h263_encoder"
1673 fraps_decoder_select="huffman"
1674 h261_decoder_select="error_resilience mpegvideo"
1675 h261_encoder_select="aandcttables mpegvideoenc"
1676 h263_decoder_select="error_resilience h263_parser mpegvideo"
1677 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1678 h263i_decoder_select="h263_decoder"
1679 h263p_encoder_select="h263_encoder"
1680 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1681 huffyuv_encoder_select="huffman"
1682 iac_decoder_select="fft mdct sinewin"
1683 imc_decoder_select="fft mdct sinewin"
1684 jpegls_decoder_select="golomb"
1685 jpegls_encoder_select="golomb"
1686 ljpeg_encoder_select="aandcttables mpegvideoenc"
1687 loco_decoder_select="golomb"
1688 mdec_decoder_select="error_resilience mpegvideo"
1689 mjpeg_encoder_select="aandcttables mpegvideoenc"
1690 mlp_decoder_select="mlp_parser"
1691 mp1_decoder_select="mpegaudio"
1692 mp1float_decoder_select="mpegaudio"
1693 mp2_decoder_select="mpegaudio"
1694 mp2float_decoder_select="mpegaudio"
1695 mp3_decoder_select="mpegaudio"
1696 mp3adu_decoder_select="mpegaudio"
1697 mp3adufloat_decoder_select="mpegaudio"
1698 mp3float_decoder_select="mpegaudio"
1699 mp3on4_decoder_select="mpegaudio"
1700 mp3on4float_decoder_select="mpegaudio"
1701 mpc7_decoder_select="mpegaudiodsp"
1702 mpc8_decoder_select="mpegaudiodsp"
1703 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1704 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1705 mpeg1video_decoder_select="error_resilience mpegvideo"
1706 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1707 mpeg2video_decoder_select="error_resilience mpegvideo"
1708 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1709 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1710 mpeg4_encoder_select="h263_encoder"
1711 msmpeg4v1_decoder_select="h263_decoder"
1712 msmpeg4v1_encoder_select="h263_encoder"
1713 msmpeg4v2_decoder_select="h263_decoder"
1714 msmpeg4v2_encoder_select="h263_encoder"
1715 msmpeg4v3_decoder_select="h263_decoder"
1716 msmpeg4v3_encoder_select="h263_encoder"
1717 mss2_decoder_select="vc1_decoder"
1718 nellymoser_decoder_select="mdct sinewin"
1719 nellymoser_encoder_select="mdct sinewin"
1720 nuv_decoder_select="lzo"
1721 png_decoder_select="zlib"
1722 png_encoder_select="zlib"
1723 qcelp_decoder_select="lsp"
1724 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1725 ra_144_encoder_select="lpc"
1726 ralf_decoder_select="golomb"
1727 rv10_decoder_select="h263_decoder"
1728 rv10_encoder_select="h263_encoder"
1729 rv20_decoder_select="h263_decoder"
1730 rv20_encoder_select="h263_encoder"
1731 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1732 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1733 shorten_decoder_select="golomb"
1734 sipr_decoder_select="lsp"
1735 snow_decoder_select="dwt rangecoder"
1736 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1737 sonic_decoder_select="golomb"
1738 sonic_encoder_select="golomb"
1739 sonic_ls_encoder_select="golomb"
1740 svq1_decoder_select="error_resilience mpegvideo"
1741 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1742 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1743 svq3_decoder_suggest="zlib"
1744 theora_decoder_select="vp3_decoder"
1745 tiff_decoder_suggest="zlib"
1746 tiff_encoder_suggest="zlib"
1747 truehd_decoder_select="mlp_parser"
1748 tscc_decoder_select="zlib"
1749 twinvq_decoder_select="mdct lsp sinewin"
1750 utvideo_encoder_select="huffman"
1751 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1752 vc1image_decoder_select="vc1_decoder"
1753 vorbis_decoder_select="mdct"
1754 vorbis_encoder_select="mdct"
1755 vp3_decoder_select="vp3dsp videodsp"
1756 vp5_decoder_select="vp3dsp videodsp"
1757 vp6_decoder_select="huffman vp3dsp videodsp"
1758 vp6a_decoder_select="vp6_decoder"
1759 vp6f_decoder_select="vp6_decoder"
1760 vp8_decoder_select="h264pred videodsp"
1761 wmapro_decoder_select="mdct sinewin"
1762 wmav1_decoder_select="mdct sinewin"
1763 wmav1_encoder_select="mdct sinewin"
1764 wmav2_decoder_select="mdct sinewin"
1765 wmav2_encoder_select="mdct sinewin"
1766 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1767 wmv1_decoder_select="h263_decoder"
1768 wmv1_encoder_select="h263_encoder"
1769 wmv2_decoder_select="h263_decoder"
1770 wmv2_encoder_select="h263_encoder"
1771 wmv3_decoder_select="vc1_decoder"
1772 wmv3image_decoder_select="wmv3_decoder"
1773 zerocodec_decoder_select="zlib"
1774 zlib_decoder_select="zlib"
1775 zlib_encoder_select="zlib"
1776 zmbv_decoder_select="zlib"
1777 zmbv_encoder_select="zlib"
1778
1779 # hardware accelerators
1780 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1781 vaapi_deps="va_va_h"
1782 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1783 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1784
1785 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1786 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1787 h264_dxva2_hwaccel_deps="dxva2api_h"
1788 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1789 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1790 h264_vda_decoder_select="vda h264_parser h264_decoder"
1791 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1792 h264_vda_hwaccel_select="vda h264_decoder"
1793 h264_vdpau_decoder_select="vdpau h264_decoder"
1794 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1795 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1796 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1797 mpeg2_crystalhd_decoder_select="crystalhd"
1798 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1799 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1800 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1801 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1802 mpeg4_crystalhd_decoder_select="crystalhd"
1803 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1804 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1805 msmpeg4_crystalhd_decoder_select="crystalhd"
1806 vc1_crystalhd_decoder_select="crystalhd"
1807 vc1_dxva2_hwaccel_deps="dxva2api_h"
1808 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1809 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1810 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1811 wmv3_crystalhd_decoder_select="crystalhd"
1812 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1813 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1814 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1815
1816 # parsers
1817 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1818 mpeg4video_parser_select="error_resilience mpegvideo"
1819 mpegvideo_parser_select="error_resilience mpegvideo"
1820 vc1_parser_select="error_resilience mpegvideo"
1821
1822 # external libraries
1823 libaacplus_encoder_deps="libaacplus"
1824 libcelt_decoder_deps="libcelt"
1825 libfaac_encoder_deps="libfaac"
1826 libfdk_aac_encoder_deps="libfdk_aac"
1827 libgsm_decoder_deps="libgsm"
1828 libgsm_encoder_deps="libgsm"
1829 libgsm_ms_decoder_deps="libgsm"
1830 libgsm_ms_encoder_deps="libgsm"
1831 libilbc_decoder_deps="libilbc"
1832 libilbc_encoder_deps="libilbc"
1833 libmodplug_demuxer_deps="libmodplug"
1834 libmp3lame_encoder_deps="libmp3lame"
1835 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1836 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1837 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1838 libopenjpeg_decoder_deps="libopenjpeg"
1839 libopenjpeg_encoder_deps="libopenjpeg"
1840 libopus_decoder_deps="libopus"
1841 libopus_encoder_deps="libopus"
1842 libschroedinger_decoder_deps="libschroedinger"
1843 libschroedinger_encoder_deps="libschroedinger"
1844 libspeex_decoder_deps="libspeex"
1845 libspeex_encoder_deps="libspeex"
1846 libstagefright_h264_decoder_deps="libstagefright_h264"
1847 libtheora_encoder_deps="libtheora"
1848 libtwolame_encoder_deps="libtwolame"
1849 libvo_aacenc_encoder_deps="libvo_aacenc"
1850 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1851 libvorbis_decoder_deps="libvorbis"
1852 libvorbis_encoder_deps="libvorbis"
1853 libvpx_decoder_deps="libvpx"
1854 libvpx_encoder_deps="libvpx"
1855 libx264_encoder_deps="libx264"
1856 libx264rgb_encoder_deps="libx264"
1857 libxavs_encoder_deps="libxavs"
1858 libxvid_encoder_deps="libxvid"
1859 libutvideo_decoder_deps="libutvideo"
1860 libutvideo_encoder_deps="libutvideo"
1861
1862 # demuxers / muxers
1863 ac3_demuxer_select="ac3_parser"
1864 asf_stream_muxer_select="asf_muxer"
1865 avisynth_demuxer_deps="avisynth"
1866 dirac_demuxer_select="dirac_parser"
1867 dts_demuxer_select="dca_parser"
1868 dtshd_demuxer_select="dca_parser"
1869 eac3_demuxer_select="ac3_parser"
1870 f4v_muxer_select="mov_muxer"
1871 flac_demuxer_select="flac_parser"
1872 ipod_muxer_select="mov_muxer"
1873 ismv_muxer_select="mov_muxer"
1874 libnut_demuxer_deps="libnut"
1875 libnut_muxer_deps="libnut"
1876 matroska_audio_muxer_select="matroska_muxer"
1877 matroska_demuxer_suggest="bzlib lzo zlib"
1878 mov_demuxer_suggest="zlib"
1879 mov_muxer_select="rtpenc_chain"
1880 mp3_demuxer_select="mpegaudio_parser"
1881 mp4_muxer_select="mov_muxer"
1882 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1883 mpegtsraw_demuxer_select="mpegts_demuxer"
1884 mxf_d10_muxer_select="mxf_muxer"
1885 ogg_demuxer_select="golomb"
1886 psp_muxer_select="mov_muxer"
1887 rtp_demuxer_select="sdp_demuxer"
1888 rtp_muxer_select="mpegvideo"
1889 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1890 rtsp_demuxer_select="http_protocol rtpdec"
1891 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1892 sap_demuxer_select="sdp_demuxer"
1893 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1894 sdp_demuxer_select="rtpdec"
1895 smoothstreaming_muxer_select="ismv_muxer"
1896 spdif_muxer_select="aac_parser"
1897 tak_demuxer_select="tak_parser"
1898 tg2_muxer_select="mov_muxer"
1899 tgp_muxer_select="mov_muxer"
1900 vobsub_demuxer_select="mpegps_demuxer"
1901 w64_demuxer_deps="wav_demuxer"
1902 w64_muxer_deps="wav_muxer"
1903
1904 # indevs / outdevs
1905 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1906 alsa_outdev_deps="alsa_asoundlib_h"
1907 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1908 caca_outdev_deps="libcaca"
1909 dshow_indev_deps="IBaseFilter"
1910 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1911 dv1394_indev_deps="dv1394 dv_demuxer"
1912 fbdev_indev_deps="linux_fb_h"
1913 iec61883_indev_deps="libiec61883"
1914 jack_indev_deps="jack_jack_h sem_timedwait"
1915 lavfi_indev_deps="avfilter"
1916 libcdio_indev_deps="libcdio"
1917 libdc1394_indev_deps="libdc1394"
1918 libv4l2_indev_deps="libv4l2"
1919 openal_indev_deps="openal"
1920 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1921 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1922 pulse_indev_deps="libpulse"
1923 sdl_outdev_deps="sdl"
1924 sndio_indev_deps="sndio_h"
1925 sndio_outdev_deps="sndio_h"
1926 v4l_indev_deps="linux_videodev_h"
1927 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1928 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1929 vfwcap_indev_extralibs="-lavicap32"
1930 x11grab_indev_deps="x11grab"
1931
1932 # protocols
1933 bluray_protocol_deps="libbluray"
1934 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1935 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1936 ffrtmpcrypt_protocol_select="tcp_protocol"
1937 ffrtmphttp_protocol_deps="!librtmp_protocol"
1938 ffrtmphttp_protocol_select="http_protocol"
1939 gopher_protocol_select="network"
1940 httpproxy_protocol_select="tcp_protocol"
1941 http_protocol_select="tcp_protocol"
1942 https_protocol_select="tls_protocol"
1943 librtmp_protocol_deps="librtmp"
1944 librtmpe_protocol_deps="librtmp"
1945 librtmps_protocol_deps="librtmp"
1946 librtmpt_protocol_deps="librtmp"
1947 librtmpte_protocol_deps="librtmp"
1948 mmsh_protocol_select="http_protocol"
1949 mmst_protocol_select="network"
1950 rtmp_protocol_deps="!librtmp_protocol"
1951 rtmp_protocol_select="tcp_protocol"
1952 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1953 rtmps_protocol_deps="!librtmp_protocol"
1954 rtmps_protocol_select="tls_protocol"
1955 rtmpt_protocol_select="ffrtmphttp_protocol"
1956 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1957 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1958 rtp_protocol_select="udp_protocol"
1959 sctp_protocol_deps="struct_sctp_event_subscribe"
1960 sctp_protocol_select="network"
1961 tcp_protocol_select="network"
1962 tls_protocol_deps_any="openssl gnutls"
1963 tls_protocol_select="tcp_protocol"
1964 udp_protocol_select="network"
1965
1966 # filters
1967 aconvert_filter_deps="swresample"
1968 amovie_filter_deps="avcodec avformat"
1969 aresample_filter_deps="swresample"
1970 ass_filter_deps="libass"
1971 asyncts_filter_deps="avresample"
1972 atempo_filter_deps="avcodec rdft"
1973 blackframe_filter_deps="gpl"
1974 boxblur_filter_deps="gpl"
1975 colormatrix_filter_deps="gpl"
1976 cropdetect_filter_deps="gpl"
1977 decimate_filter_deps="gpl avcodec"
1978 delogo_filter_deps="gpl"
1979 deshake_filter_deps="avcodec"
1980 drawtext_filter_deps="libfreetype"
1981 ebur128_filter_deps="gpl"
1982 flite_filter_deps="libflite"
1983 frei0r_filter_deps="frei0r dlopen"
1984 frei0r_filter_extralibs='$ldl'
1985 frei0r_src_filter_deps="frei0r dlopen"
1986 frei0r_src_filter_extralibs='$ldl'
1987 geq_filter_deps="gpl"
1988 histeq_filter_deps="gpl"
1989 hqdn3d_filter_deps="gpl"
1990 hue_filter_deps="gpl"
1991 kerndeint_filter_deps="gpl"
1992 movie_filter_deps="avcodec avformat"
1993 mp_filter_deps="gpl avcodec swscale inline_asm"
1994 mptestsrc_filter_deps="gpl"
1995 negate_filter_deps="lut_filter"
1996 resample_filter_deps="avresample"
1997 ocv_filter_deps="libopencv"
1998 pan_filter_deps="swresample"
1999 pp_filter_deps="gpl postproc"
2000 removelogo_filter_deps="avcodec avformat swscale"
2001 scale_filter_deps="swscale"
2002 smartblur_filter_deps="gpl swscale"
2003 showspectrum_filter_deps="avcodec rdft"
2004 subtitles_filter_deps="avformat avcodec libass"
2005 super2xsai_filter_deps="gpl"
2006 tinterlace_filter_deps="gpl"
2007 yadif_filter_deps="gpl"
2008 pixfmts_super2xsai_test_deps="super2xsai_filter"
2009 tinterlace_merge_test_deps="tinterlace_filter"
2010 tinterlace_pad_test_deps="tinterlace_filter"
2011
2012 # libraries
2013 avcodec_deps="avutil"
2014 avdevice_deps="avutil avcodec avformat"
2015 avfilter_deps="avutil"
2016 avformat_deps="avutil avcodec"
2017 avresample_deps="avutil"
2018 postproc_deps="avutil gpl"
2019 swscale_deps="avutil"
2020
2021 # programs
2022 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2023 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2024                setpts_filter null_filter anull_filter ffabuffersink_filter"
2025 ffplay_deps="avcodec avformat swscale swresample sdl"
2026 ffplay_select="ffbuffersink_filter rdft crop_filter"
2027 ffprobe_deps="avcodec avformat"
2028 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2029 ffserver_extralibs='$ldl'
2030
2031 # documentation
2032 podpages_deps="perl"
2033 manpages_deps="perl pod2man"
2034 htmlpages_deps="texi2html"
2035 txtpages_deps="makeinfo"
2036 doc_deps_any="manpages htmlpages podpages txtpages"
2037
2038 # default parameters
2039
2040 logfile="config.log"
2041
2042 # installation paths
2043 prefix_default="/usr/local"
2044 bindir_default='${prefix}/bin'
2045 datadir_default='${prefix}/share/ffmpeg'
2046 incdir_default='${prefix}/include'
2047 libdir_default='${prefix}/lib'
2048 mandir_default='${prefix}/share/man'
2049 shlibdir_default="$libdir_default"
2050
2051 # toolchain
2052 ar_default="ar"
2053 cc_default="gcc"
2054 cxx_default="g++"
2055 host_cc_default="gcc"
2056 cp_f="cp -f"
2057 install="install"
2058 ln_s="ln -sf"
2059 nm_default="nm -g"
2060 objformat="elf"
2061 pkg_config_default=pkg-config
2062 ranlib="ranlib"
2063 strip_default="strip"
2064 yasmexe_default="yasm"
2065
2066 nogas=":"
2067
2068 # machine
2069 arch_default=$(uname -m)
2070 cpu="generic"
2071
2072 # OS
2073 target_os_default=$(tolower $(uname -s))
2074 host_os=$target_os_default
2075
2076 # configurable options
2077 enable $PROGRAM_LIST
2078 enable $DOCUMENT_LIST
2079 enable $(filter_out avresample $LIBRARY_LIST)
2080 enable stripping
2081
2082 enable asm
2083 enable debug
2084 enable doc
2085 enable optimizations
2086 enable runtime_cpudetect
2087 enable safe_bitstream_reader
2088 enable static
2089 enable swscale_alpha
2090
2091 # build settings
2092 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2093 FFSERVERLDFLAGS=-Wl,-E
2094 LIBPREF="lib"
2095 LIBSUF=".a"
2096 FULLNAME='$(NAME)$(BUILDSUF)'
2097 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2098 SLIBPREF="lib"
2099 SLIBSUF=".so"
2100 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2101 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2102 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2103 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2104 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2105 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2106
2107 asflags_filter=echo
2108 cflags_filter=echo
2109 ldflags_filter=echo
2110
2111 AS_C='-c'
2112 AS_O='-o $@'
2113 CC_C='-c'
2114 CC_E='-E -o $@'
2115 CC_O='-o $@'
2116 CXX_C='-c'
2117 CXX_O='-o $@'
2118 LD_O='-o $@'
2119 LD_LIB='-l%'
2120 LD_PATH='-L'
2121 HOSTCC_C='-c'
2122 HOSTCC_O='-o $@'
2123 HOSTLD_O='-o $@'
2124
2125 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2126 host_libs='-lm'
2127 host_cflags_filter=echo
2128 host_ldflags_filter=echo
2129
2130 target_path='$(CURDIR)'
2131
2132 # since the object filename is not given with the -MM flag, the compiler
2133 # is only able to print the basename, and we must add the path ourselves
2134 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2135 DEPFLAGS='-MM'
2136
2137 # find source path
2138 if test -f configure; then
2139     source_path=.
2140 else
2141     source_path=$(cd $(dirname "$0"); pwd)
2142     echo "$source_path" | grep -q '[[:blank:]]' &&
2143         die "Out of tree builds are impossible with whitespace in source path."
2144     test -e "$source_path/config.h" &&
2145         die "Out of tree builds are impossible with config.h in source dir."
2146 fi
2147
2148 for v in "$@"; do
2149     r=${v#*=}
2150     l=${v%"$r"}
2151     r=$(sh_quote "$r")
2152     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2153 done
2154
2155 find_things(){
2156     thing=$1
2157     pattern=$2
2158     file=$source_path/$3
2159     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2160 }
2161
2162 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2163 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2164 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2165 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2166 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2167 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2168 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2169 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2170 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2171 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2172 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2173
2174 ALL_COMPONENTS="
2175     $BSF_LIST
2176     $DECODER_LIST
2177     $DEMUXER_LIST
2178     $ENCODER_LIST
2179     $FILTER_LIST
2180     $HWACCEL_LIST
2181     $INDEV_LIST
2182     $MUXER_LIST
2183     $OUTDEV_LIST
2184     $PARSER_LIST
2185     $PROTOCOL_LIST
2186 "
2187
2188 for n in $COMPONENT_LIST; do
2189     v=$(toupper ${n%s})_LIST
2190     eval enable \$$v
2191     eval ${n}_if_any="\$$v"
2192 done
2193
2194 enable $ARCH_EXT_LIST
2195
2196 die_unknown(){
2197     echo "Unknown option \"$1\"."
2198     echo "See $0 --help for available options."
2199     exit 1
2200 }
2201
2202 show_list() {
2203     suffix=_$1
2204     shift
2205     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2206     exit 0
2207 }
2208
2209 rand_list(){
2210     IFS=', '
2211     set -- $*
2212     unset IFS
2213     for thing; do
2214         comp=${thing%:*}
2215         prob=${thing#$comp}
2216         prob=${prob#:}
2217         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2218         echo "prob ${prob:-0.5}"
2219         printf '%s\n' $comp
2220     done
2221 }
2222
2223 do_random(){
2224     action=$1
2225     shift
2226     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2227     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2228 }
2229
2230 for opt do
2231     optval="${opt#*=}"
2232     case "$opt" in
2233         --extra-ldflags=*)
2234             add_ldflags $optval
2235         ;;
2236         --extra-libs=*)
2237             add_extralibs $optval
2238         ;;
2239         --disable-devices)
2240             disable $INDEV_LIST $OUTDEV_LIST
2241         ;;
2242         --enable-debug=*)
2243             debuglevel="$optval"
2244         ;;
2245         --disable-programs)
2246             disable $PROGRAM_LIST
2247         ;;
2248         --disable-everything)
2249             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2250         ;;
2251         --disable-all)
2252             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2253             disable $LIBRARY_LIST $PROGRAM_LIST doc
2254         ;;
2255         --enable-random|--disable-random)
2256             action=${opt%%-random}
2257             do_random ${action#--} $COMPONENT_LIST
2258         ;;
2259         --enable-random=*|--disable-random=*)
2260             action=${opt%%-random=*}
2261             do_random ${action#--} $optval
2262         ;;
2263         --enable-*=*|--disable-*=*)
2264             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2265             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2266             eval list=\$$(toupper $thing)_LIST
2267             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2268             list=$(filter "$name" $list)
2269             [ "$list" = "" ] && warn "Option $opt did not match anything"
2270             $action $list
2271         ;;
2272         --enable-?*|--disable-?*)
2273             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2274             if is_in $option $COMPONENT_LIST; then
2275                 test $action = disable && action=unset
2276                 eval $action \$$(toupper ${option%s})_LIST
2277             elif is_in $option $CMDLINE_SELECT; then
2278                 $action $option
2279             else
2280                 die_unknown $opt
2281             fi
2282         ;;
2283         --list-*)
2284             NAME="${opt#--list-}"
2285             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2286             NAME=${NAME%s}
2287             eval show_list $NAME \$$(toupper $NAME)_LIST
2288         ;;
2289         --help|-h) show_help
2290         ;;
2291         --fatal-warnings) enable fatal_warnings
2292         ;;
2293         *)
2294             optname="${opt%%=*}"
2295             optname="${optname#--}"
2296             optname=$(echo "$optname" | sed 's/-/_/g')
2297             if is_in $optname $CMDLINE_SET; then
2298                 eval $optname='$optval'
2299             elif is_in $optname $CMDLINE_APPEND; then
2300                 append $optname "$optval"
2301             else
2302                 die_unknown $opt
2303             fi
2304         ;;
2305     esac
2306 done
2307
2308 disabled logging && logfile=/dev/null
2309
2310 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2311 set >> $logfile
2312
2313 test -n "$cross_prefix" && enable cross_compile
2314
2315 if enabled cross_compile; then
2316     test -n "$arch" && test -n "$target_os" ||
2317         die "Must specify target arch and OS when cross-compiling"
2318 fi
2319
2320 ar_default="${cross_prefix}${ar_default}"
2321 cc_default="${cross_prefix}${cc_default}"
2322 cxx_default="${cross_prefix}${cxx_default}"
2323 nm_default="${cross_prefix}${nm_default}"
2324 pkg_config_default="${cross_prefix}${pkg_config_default}"
2325 ranlib="${cross_prefix}${ranlib}"
2326 strip_default="${cross_prefix}${strip_default}"
2327
2328 sysinclude_default="${sysroot}/usr/include"
2329
2330 case "$toolchain" in
2331     clang-asan)
2332         cc_default="clang"
2333         add_cflags  -faddress-sanitizer
2334         add_ldflags -faddress-sanitizer
2335     ;;
2336     clang-tsan)
2337         cc_default="clang"
2338         add_cflags  -fthread-sanitizer
2339         add_ldflags -fthread-sanitizer
2340     ;;
2341     msvc)
2342         cc_default="c99wrap cl"
2343         ld_default="c99wrap link"
2344         nm_default="dumpbin -symbols"
2345         ar_default="lib"
2346         target_os_default="win32"
2347     ;;
2348     ?*)
2349         die "Unknown toolchain $toolchain"
2350     ;;
2351 esac
2352
2353 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2354 enabled cross_compile || host_cc_default=$cc
2355 set_default host_cc
2356
2357 if ! $pkg_config --version >/dev/null 2>&1; then
2358     warn "$pkg_config not found, library detection may fail."
2359     pkg_config=false
2360 fi
2361
2362 exesuf() {
2363     case $1 in
2364         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2365     esac
2366 }
2367
2368 EXESUF=$(exesuf $target_os)
2369 HOSTEXESUF=$(exesuf $host_os)
2370
2371 # set temporary file name
2372 : ${TMPDIR:=$TEMPDIR}
2373 : ${TMPDIR:=$TMP}
2374 : ${TMPDIR:=/tmp}
2375
2376 if ! check_cmd mktemp -u XXXXXX; then
2377     # simple replacement for missing mktemp
2378     # NOT SAFE FOR GENERAL USE
2379     mktemp(){
2380         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2381     }
2382 fi
2383
2384 tmpfile(){
2385     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2386         (set -C; exec > $tmp) 2>/dev/null ||
2387         die "Unable to create temporary file in $TMPDIR."
2388     append TMPFILES $tmp
2389     eval $1=$tmp
2390 }
2391
2392 trap 'rm -f -- $TMPFILES' EXIT
2393
2394 tmpfile TMPASM .asm
2395 tmpfile TMPC   .c
2396 tmpfile TMPCPP .cpp
2397 tmpfile TMPE   $EXESUF
2398 tmpfile TMPH   .h
2399 tmpfile TMPO   .o
2400 tmpfile TMPS   .S
2401 tmpfile TMPSH  .sh
2402 tmpfile TMPV   .ver
2403
2404 unset -f mktemp
2405
2406 chmod +x $TMPE
2407
2408 # make sure we can execute files in $TMPDIR
2409 cat > $TMPSH 2>> $logfile <<EOF
2410 #! /bin/sh
2411 EOF
2412 chmod +x $TMPSH >> $logfile 2>&1
2413 if ! $TMPSH >> $logfile 2>&1; then
2414     cat <<EOF
2415 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2416 variable to another directory and make sure that it is not mounted noexec.
2417 EOF
2418     die "Sanity test failed."
2419 fi
2420
2421 ccc_flags(){
2422     for flag; do
2423         case $flag in
2424             -std=c99)           echo -c99                       ;;
2425             -mcpu=*)            echo -arch ${flag#*=}           ;;
2426             -mieee)             echo -ieee                      ;;
2427             -O*|-fast)          echo $flag                      ;;
2428             -fno-math-errno)    echo -assume nomath_errno       ;;
2429             -g)                 echo -g3                        ;;
2430             -Wall)              echo -msg_enable level2         ;;
2431             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2432             -Wl,*)              echo $flag                      ;;
2433             -f*|-W*)                                            ;;
2434             *)                  echo $flag                      ;;
2435         esac
2436    done
2437 }
2438
2439 msvc_flags(){
2440     for flag; do
2441         case $flag in
2442             -fomit-frame-pointer) echo -Oy ;;
2443             -g)                   echo -Z7 ;;
2444             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2445                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2446                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2447                                        -wd4554 \
2448                                        -wd4996 -wd4273 ;;
2449             -std=c99)             ;;
2450             -fno-math-errno)      ;;
2451             -fno-common)          ;;
2452             -fno-signed-zeros)    ;;
2453             -fPIC)                ;;
2454             -lz)                  echo zlib.lib ;;
2455             -lavifil32)           echo vfw32.lib ;;
2456             -lavicap32)           echo vfw32.lib user32.lib ;;
2457             -l*)                  echo ${flag#-l}.lib ;;
2458             *)                    echo $flag ;;
2459         esac
2460     done
2461 }
2462
2463 pgi_flags(){
2464     for flag; do
2465         case $flag in
2466             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2467             -fomit-frame-pointer) echo -Mnoframe ;;
2468             -g)                   echo -gopt ;;
2469             *)                    echo $flag ;;
2470         esac
2471     done
2472 }
2473
2474 suncc_flags(){
2475     for flag; do
2476         case $flag in
2477             -march=*|-mcpu=*)
2478                 case "${flag#*=}" in
2479                     native)                   echo -xtarget=native       ;;
2480                     v9|niagara)               echo -xarch=sparc          ;;
2481                     ultrasparc)               echo -xarch=sparcvis       ;;
2482                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2483                     i586|pentium)             echo -xchip=pentium        ;;
2484                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2485                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2486                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2487                     pentium4*)          echo -xtarget=pentium4           ;;
2488                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2489                     *-sse3)             echo -xarch=sse3                 ;;
2490                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2491                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2492                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2493                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2494                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2495                     k8|opteron|athlon64|athlon-fx)
2496                                               echo -xarch=sse2a          ;;
2497                     athlon*)                  echo -xarch=pentium_proa   ;;
2498                 esac
2499                 ;;
2500             -std=c99)             echo -xc99              ;;
2501             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2502             -fPIC)                echo -KPIC -xcode=pic32 ;;
2503             -W*,*)                echo $flag              ;;
2504             -f*-*|-W*)                                    ;;
2505             *)                    echo $flag              ;;
2506         esac
2507     done
2508 }
2509
2510 tms470_flags(){
2511     for flag; do
2512         case $flag in
2513             -march=*|-mcpu=*)
2514                 case "${flag#*=}" in
2515                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2516                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2517                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2518                     armv6*|arm11*)          echo -mv=6   ;;
2519                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2520                                             echo -mv=5e  ;;
2521                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2522                 esac
2523                 ;;
2524             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2525             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2526             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2527             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2528             -msoft-float)   echo --float_support=vfplib       ;;
2529             -O[0-3]|-mf=*)  echo $flag                        ;;
2530             -g)             echo -g -mn                       ;;
2531             -pds=*)         echo $flag                        ;;
2532             -D*|-I*)        echo $flag                        ;;
2533             --gcc|--abi=*)  echo $flag                        ;;
2534             -me)            echo $flag                        ;;
2535         esac
2536     done
2537 }
2538
2539 probe_cc(){
2540     pfx=$1
2541     _cc=$2
2542
2543     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2544     unset _ld_o _ldflags _ld_lib _ld_path
2545     unset _depflags _DEPCMD _DEPFLAGS
2546     _flags_filter=echo
2547
2548     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2549         _type=llvm_gcc
2550         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2551         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2552         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2553         _cflags_speed='-O3'
2554         _cflags_size='-Os'
2555     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2556         _type=gcc
2557         gcc_version=$($_cc --version | head -n1)
2558         gcc_basever=$($_cc -dumpversion)
2559         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2560         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2561         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2562         if ! $_cc -dumpversion | grep -q '^2\.'; then
2563             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2564         fi
2565         _cflags_speed='-O3'
2566         _cflags_size='-Os'
2567     elif $_cc --version 2>/dev/null | grep -q Intel; then
2568         _type=icc
2569         _ident=$($_cc --version | head -n1)
2570         _depflags='-MMD'
2571         _cflags_speed='-O3'
2572         _cflags_size='-Os'
2573         _cflags_noopt='-O1'
2574     elif $_cc -v 2>&1 | grep -q xlc; then
2575         _type=xlc
2576         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2577         _cflags_speed='-O5'
2578         _cflags_size='-O5 -qcompact'
2579     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2580         _type=ccc
2581         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2582         _DEPFLAGS='-M'
2583         _cflags_speed='-fast'
2584         _cflags_size='-O1'
2585         _flags_filter=ccc_flags
2586     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2587         test -d "$sysroot" || die "No valid sysroot specified."
2588         _type=armcc
2589         _ident=$($_cc --vsn | head -n1)
2590         armcc_conf="$PWD/armcc.conf"
2591         $_cc --arm_linux_configure                 \
2592              --arm_linux_config_file="$armcc_conf" \
2593              --configure_sysroot="$sysroot"        \
2594              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2595              die "Error creating armcc configuration file."
2596         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2597         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2598         as_default="${cross_prefix}gcc"
2599         _depflags='-MMD'
2600         _cflags_speed='-O3'
2601         _cflags_size='-Os'
2602     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2603         _type=tms470
2604         _ident=$($_cc -version | head -n1 | tr -s ' ')
2605         _flags='--gcc --abi=eabi -me'
2606         _cc_e='-ppl -fe=$@'
2607         _cc_o='-fe=$@'
2608         _depflags='-ppa -ppd=$(@:.o=.d)'
2609         _cflags_speed='-O3 -mf=5'
2610         _cflags_size='-O3 -mf=2'
2611         _flags_filter=tms470_flags
2612     elif $_cc -v 2>&1 | grep -q clang; then
2613         _type=clang
2614         _ident=$($_cc --version | head -n1)
2615         _depflags='-MMD'
2616         _cflags_speed='-O3'
2617         _cflags_size='-Os'
2618     elif $_cc -V 2>&1 | grep -q Sun; then
2619         _type=suncc
2620         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2621         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2622         _DEPFLAGS='-xM1 -xc99'
2623         _ldflags='-std=c99'
2624         _cflags_speed='-O5'
2625         _cflags_size='-O5 -xspace'
2626         _flags_filter=suncc_flags
2627     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2628         _type=pathscale
2629         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2630         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2631         _cflags_speed='-O2'
2632         _cflags_size='-Os'
2633         _flags_filter='filter_out -Wdisabled-optimization'
2634     elif $_cc -v 2>&1 | grep -q Open64; then
2635         _type=open64
2636         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2637         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2638         _cflags_speed='-O2'
2639         _cflags_size='-Os'
2640         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2641     elif $_cc -V 2>&1 | grep -q Portland; then
2642         _type=pgi
2643         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2644         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2645         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2646         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2647         _cflags_noopt="-O1"
2648         _flags_filter=pgi_flags
2649     elif $_cc 2>&1 | grep -q Microsoft; then
2650         _type=msvc
2651         _ident=$($cc 2>&1 | head -n1)
2652         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2653         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2654         _cflags_speed="-O2"
2655         _cflags_size="-O1"
2656         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2657         if $_cc 2>&1 | grep -q Linker; then
2658             _ld_o='-out $@'
2659         else
2660             _ld_o='-Fe$@'
2661         fi
2662         _cc_o='-Fo $@'
2663         _cc_e='-P -Fi $@'
2664         _flags_filter=msvc_flags
2665         _ld_lib='lib%.a'
2666         _ld_path='-libpath:'
2667         _flags='-nologo'
2668         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2669         if [ $pfx = hostcc ]; then
2670             append _cflags -Dsnprintf=_snprintf
2671         fi
2672         disable stripping
2673     fi
2674
2675     eval ${pfx}_type=\$_type
2676     eval ${pfx}_ident=\$_ident
2677 }
2678
2679 set_ccvars(){
2680     eval ${1}_C=\${_cc_c-\${${1}_C}}
2681     eval ${1}_E=\${_cc_e-\${${1}_E}}
2682     eval ${1}_O=\${_cc_o-\${${1}_O}}
2683
2684     if [ -n "$_depflags" ]; then
2685         eval ${1}_DEPFLAGS=\$_depflags
2686     else
2687         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2688         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2689         eval DEP${1}FLAGS=\$_flags
2690     fi
2691 }
2692
2693 probe_cc cc "$cc"
2694 cflags_filter=$_flags_filter
2695 cflags_speed=$_cflags_speed
2696 cflags_size=$_cflags_size
2697 cflags_noopt=$_cflags_noopt
2698 add_cflags $_flags $_cflags
2699 cc_ldflags=$_ldflags
2700 set_ccvars CC
2701
2702 probe_cc hostcc "$host_cc"
2703 host_cflags_filter=$_flags_filter
2704 add_host_cflags  $_flags $_cflags
2705 set_ccvars HOSTCC
2706
2707 test -n "$cc_type" && enable $cc_type ||
2708     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2709
2710 : ${as_default:=$cc}
2711 : ${dep_cc_default:=$cc}
2712 : ${ld_default:=$cc}
2713 : ${host_ld_default:=$host_cc}
2714 set_default ar as dep_cc ld host_ld
2715
2716 probe_cc as "$as"
2717 asflags_filter=$_flags_filter
2718 add_asflags $_flags $_cflags
2719 set_ccvars AS
2720
2721 probe_cc ld "$ld"
2722 ldflags_filter=$_flags_filter
2723 add_ldflags $_flags $_ldflags
2724 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2725 LD_O=${_ld_o-$LD_O}
2726 LD_LIB=${_ld_lib-$LD_LIB}
2727 LD_PATH=${_ld_path-$LD_PATH}
2728
2729 probe_cc hostld "$host_ld"
2730 host_ldflags_filter=$_flags_filter
2731 add_host_ldflags $_flags $_ldflags
2732 HOSTLD_O=${_ld_o-$HOSTLD_O}
2733
2734 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2735     probe_cc depcc "$dep_cc"
2736     CCDEP=${_DEPCMD:-$DEPCMD}
2737     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2738     DEPCCFLAGS=$_flags
2739 fi
2740
2741 if $ar 2>&1 | grep -q Microsoft; then
2742     arflags="-nologo"
2743     ar_o='-out:$@'
2744 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2745     arflags="rq"
2746     ar_o='$@'
2747 else
2748     arflags="rc"
2749     ar_o='$@'
2750 fi
2751
2752 add_cflags $extra_cflags
2753 add_cxxflags $extra_cxxflags
2754 add_asflags $extra_cflags
2755
2756 if test -n "$sysroot"; then
2757     case "$cc_type" in
2758         gcc|llvm_gcc|clang)
2759             add_cppflags --sysroot="$sysroot"
2760             add_ldflags --sysroot="$sysroot"
2761         ;;
2762         tms470)
2763             add_cppflags -I"$sysinclude"
2764             add_ldflags  --sysroot="$sysroot"
2765         ;;
2766     esac
2767 fi
2768
2769 if test "$cpu" = host; then
2770     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2771
2772     case "$cc_type" in
2773         gcc|llvm_gcc)
2774             check_native(){
2775                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2776                 sed -n "/cc1.*$1=/{
2777                             s/.*$1=\\([^ ]*\\).*/\\1/
2778                             p
2779                             q
2780                         }" $TMPE
2781             }
2782             cpu=$(check_native -march || check_native -mcpu)
2783         ;;
2784     esac
2785
2786     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2787 fi
2788
2789 # Deal with common $arch aliases
2790 case "$arch" in
2791     aarch64|arm64)
2792         arch="aarch64"
2793     ;;
2794     arm*|iPad*)
2795         arch="arm"
2796     ;;
2797     mips*|IP*)
2798         arch="mips"
2799     ;;
2800     parisc*|hppa*)
2801         arch="parisc"
2802     ;;
2803     "Power Macintosh"|ppc*|powerpc*)
2804         arch="ppc"
2805     ;;
2806     s390|s390x)
2807         arch="s390"
2808     ;;
2809     sh4|sh)
2810         arch="sh4"
2811     ;;
2812     sun4u|sparc*)
2813         arch="sparc"
2814     ;;
2815     tilegx|tile-gx)
2816         arch="tilegx"
2817     ;;
2818     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2819         arch="x86"
2820     ;;
2821 esac
2822
2823 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2824 enable $arch
2825
2826 # Add processor-specific flags
2827 if enabled aarch64; then
2828
2829     case $cpu in
2830         armv*)
2831             cpuflags="-march=$cpu"
2832         ;;
2833         *)
2834             cpuflags="-mcpu=$cpu"
2835         ;;
2836     esac
2837
2838 elif enabled alpha; then
2839
2840     cpuflags="-mcpu=$cpu"
2841
2842 elif enabled arm; then
2843
2844     check_arm_arch() {
2845         check_cpp_condition stddef.h \
2846             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2847             $cpuflags
2848     }
2849
2850     probe_arm_arch() {
2851         if   check_arm_arch 4;        then echo armv4;
2852         elif check_arm_arch 4T;       then echo armv4t;
2853         elif check_arm_arch 5;        then echo armv5;
2854         elif check_arm_arch 5E;       then echo armv5e;
2855         elif check_arm_arch 5T;       then echo armv5t;
2856         elif check_arm_arch 5TE;      then echo armv5te;
2857         elif check_arm_arch 5TEJ;     then echo armv5te;
2858         elif check_arm_arch 6;        then echo armv6;
2859         elif check_arm_arch 6J;       then echo armv6j;
2860         elif check_arm_arch 6K;       then echo armv6k;
2861         elif check_arm_arch 6Z;       then echo armv6z;
2862         elif check_arm_arch 6ZK;      then echo armv6zk;
2863         elif check_arm_arch 6T2;      then echo armv6t2;
2864         elif check_arm_arch 7;        then echo armv7;
2865         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2866         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2867         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2868         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2869         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2870         fi
2871     }
2872
2873     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2874
2875     case $cpu in
2876         armv*)
2877             cpuflags="-march=$cpu"
2878             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2879         ;;
2880         *)
2881             cpuflags="-mcpu=$cpu"
2882             case $cpu in
2883                 cortex-a*)                               subarch=armv7a  ;;
2884                 cortex-r*)                               subarch=armv7r  ;;
2885                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2886                 arm11*)                                  subarch=armv6   ;;
2887                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2888                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2889                 *)                             subarch=$(probe_arm_arch) ;;
2890             esac
2891         ;;
2892     esac
2893
2894     case "$subarch" in
2895         armv5t*)    enable fast_clz                ;;
2896         armv[6-8]*) enable fast_clz fast_unaligned ;;
2897     esac
2898
2899 elif enabled avr32; then
2900
2901     case $cpu in
2902         ap7[02]0[0-2])
2903             subarch="avr32_ap"
2904             cpuflags="-mpart=$cpu"
2905         ;;
2906         ap)
2907             subarch="avr32_ap"
2908             cpuflags="-march=$cpu"
2909         ;;
2910         uc3[ab]*)
2911             subarch="avr32_uc"
2912             cpuflags="-mcpu=$cpu"
2913         ;;
2914         uc)
2915             subarch="avr32_uc"
2916             cpuflags="-march=$cpu"
2917         ;;
2918     esac
2919
2920 elif enabled bfin; then
2921
2922     cpuflags="-mcpu=$cpu"
2923
2924 elif enabled mips; then
2925
2926     cpuflags="-march=$cpu"
2927
2928     case $cpu in
2929         24kc)
2930             disable mipsfpu
2931             disable mipsdspr1
2932             disable mipsdspr2
2933         ;;
2934         24kf*)
2935             disable mipsdspr1
2936             disable mipsdspr2
2937         ;;
2938         24kec|34kc|1004kc)
2939             disable mipsfpu
2940             disable mipsdspr2
2941         ;;
2942         24kef*|34kf*|1004kf*)
2943             disable mipsdspr2
2944         ;;
2945         74kc)
2946             disable mipsfpu
2947         ;;
2948     esac
2949
2950 elif enabled ppc; then
2951
2952     case $(tolower $cpu) in
2953         601|ppc601|powerpc601)
2954             cpuflags="-mcpu=601"
2955             disable altivec
2956         ;;
2957         603*|ppc603*|powerpc603*)
2958             cpuflags="-mcpu=603"
2959             disable altivec
2960         ;;
2961         604*|ppc604*|powerpc604*)
2962             cpuflags="-mcpu=604"
2963             disable altivec
2964         ;;
2965         g3|75*|ppc75*|powerpc75*)
2966             cpuflags="-mcpu=750"
2967             disable altivec
2968         ;;
2969         g4|745*|ppc745*|powerpc745*)
2970             cpuflags="-mcpu=7450"
2971         ;;
2972         74*|ppc74*|powerpc74*)
2973             cpuflags="-mcpu=7400"
2974         ;;
2975         g5|970|ppc970|powerpc970)
2976             cpuflags="-mcpu=970"
2977         ;;
2978         power[3-7]*)
2979             cpuflags="-mcpu=$cpu"
2980         ;;
2981         cell)
2982             cpuflags="-mcpu=cell"
2983             enable ldbrx
2984         ;;
2985         e500mc)
2986             cpuflags="-mcpu=e500mc"
2987             disable altivec
2988         ;;
2989         e500v2)
2990             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2991             disable altivec
2992         ;;
2993         e500)
2994             cpuflags="-mcpu=8540 -mhard-float"
2995             disable altivec
2996         ;;
2997     esac
2998
2999 elif enabled sparc; then
3000
3001     case $cpu in
3002         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3003             cpuflags="-mcpu=$cpu"
3004             disable vis
3005         ;;
3006         ultrasparc*|niagara[234])
3007             cpuflags="-mcpu=$cpu"
3008         ;;
3009     esac
3010
3011 elif enabled x86; then
3012
3013     case $cpu in
3014         i[345]86|pentium)
3015             cpuflags="-march=$cpu"
3016             disable mmx
3017         ;;
3018         # targets that do NOT support conditional mov (cmov)
3019         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3020             cpuflags="-march=$cpu"
3021             disable cmov
3022         ;;
3023         # targets that do support conditional mov (cmov)
3024         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3025             cpuflags="-march=$cpu"
3026             enable cmov
3027             enable fast_cmov
3028         ;;
3029         # targets that do support conditional mov but on which it's slow
3030         pentium4|pentium4m|prescott|nocona)
3031             cpuflags="-march=$cpu"
3032             enable cmov
3033             disable fast_cmov
3034         ;;
3035     esac
3036
3037 fi
3038
3039 if [ "$cpu" != generic ]; then
3040     add_cflags  $cpuflags
3041     add_asflags $cpuflags
3042 fi
3043
3044 # compiler sanity check
3045 check_exec <<EOF
3046 int main(void){ return 0; }
3047 EOF
3048 if test "$?" != 0; then
3049     echo "$cc is unable to create an executable file."
3050     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3051         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3052         echo "Only do this if you know what cross compiling means."
3053     fi
3054     die "C compiler test failed."
3055 fi
3056
3057 add_cppflags -D_ISOC99_SOURCE
3058 add_cxxflags -D__STDC_CONSTANT_MACROS
3059 check_cflags -std=c99
3060 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3061 #include <stdlib.h>
3062 EOF
3063 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3064 #include <stdlib.h>
3065 EOF
3066
3067 check_host_cflags -std=c99
3068 check_host_cflags -Wall
3069
3070 check_64bit(){
3071     arch32=$1
3072     arch64=$2
3073     expr=$3
3074     check_code cc "" "int test[2*($expr) - 1]" &&
3075         subarch=$arch64 || subarch=$arch32
3076 }
3077
3078 case "$arch" in
3079     aarch64|alpha|ia64)
3080         spic=$shared
3081     ;;
3082     mips)
3083         check_64bit mips mips64 '_MIPS_SIM > 1'
3084         spic=$shared
3085     ;;
3086     parisc)
3087         check_64bit parisc parisc64 'sizeof(void *) > 4'
3088         spic=$shared
3089     ;;
3090     ppc)
3091         check_64bit ppc ppc64 'sizeof(void *) > 4'
3092         spic=$shared
3093     ;;
3094     sparc)
3095         check_64bit sparc sparc64 'sizeof(void *) > 4'
3096         spic=$shared
3097     ;;
3098     x86)
3099         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3100         if test "$subarch" = "x86_64"; then
3101             spic=$shared
3102         fi
3103     ;;
3104     ppc)
3105         check_cc <<EOF && subarch="ppc64"
3106         int test[(int)sizeof(char*) - 7];
3107 EOF
3108     ;;
3109 esac
3110
3111 enable $subarch
3112 enabled spic && enable pic
3113
3114 # OS specific
3115 case $target_os in
3116     haiku)
3117         prefix_default="/boot/common"
3118         network_extralibs="-lnetwork"
3119         host_libs=
3120         ;;
3121     sunos)
3122         FFSERVERLDFLAGS=""
3123         SHFLAGS='-shared -Wl,-h,$$(@F)'
3124         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3125         network_extralibs="-lsocket -lnsl"
3126         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3127         # When using suncc to build, the Solaris linker will mark
3128         # an executable with each instruction set encountered by
3129         # the Solaris assembler.  As our libraries contain their own
3130         # guards for processor-specific code, instead suppress
3131         # generation of the HWCAPS ELF section on Solaris x86 only.
3132         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3133         nm_default='nm -P -g'
3134         ;;
3135     netbsd)
3136         disable symver
3137         oss_indev_extralibs="-lossaudio"
3138         oss_outdev_extralibs="-lossaudio"
3139         enabled gcc || check_ldflags -Wl,-zmuldefs
3140         ;;
3141     openbsd|bitrig)
3142         # On OpenBSD 4.5. the compiler does not use PIC unless
3143         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3144         # however the generated executable will not do anything
3145         # (simply quits with exit-code 1, no crash, no output).
3146         # Thus explicitly enable PIC here.
3147         enable pic
3148         disable symver
3149         SHFLAGS='-shared'
3150         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3151         SLIB_INSTALL_LINKS=
3152         oss_indev_extralibs="-lossaudio"
3153         oss_outdev_extralibs="-lossaudio"
3154         ;;
3155     dragonfly)
3156         disable symver
3157         ;;
3158     freebsd)
3159         ;;
3160     bsd/os)
3161         add_extralibs -lpoll -lgnugetopt
3162         strip="strip -d"
3163         ;;
3164     darwin)
3165         gas="gas-preprocessor.pl $cc"
3166         enabled ppc && add_asflags -force_cpusubtype_ALL
3167         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3168         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3169         strip="${strip} -x"
3170         add_ldflags -Wl,-dynamic,-search_paths_first
3171         SLIBSUF=".dylib"
3172         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3173         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3174         FFSERVERLDFLAGS=-Wl,-bind_at_load
3175         objformat="macho"
3176         enabled x86_64 && objformat="macho64"
3177         enabled_any pic shared ||
3178             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3179         ;;
3180     mingw32*)
3181         if test $target_os = "mingw32ce"; then
3182             disable network
3183         else
3184             target_os=mingw32
3185         fi
3186         LIBTARGET=i386
3187         if enabled x86_64; then
3188             LIBTARGET="i386:x86-64"
3189         elif enabled arm; then
3190             LIBTARGET=arm-wince
3191         fi
3192         shlibdir_default="$bindir_default"
3193         SLIBPREF=""
3194         SLIBSUF=".dll"
3195         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3196         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3197         dlltool="${cross_prefix}dlltool"
3198         if check_cmd lib.exe -list; then
3199             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3200             if enabled x86_64; then
3201                 LIBTARGET=x64
3202             fi
3203         elif check_cmd $dlltool --version; then
3204             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3205         fi
3206         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3207         SLIB_INSTALL_LINKS=
3208         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3209         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3210         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3211         objformat="win32"
3212         ranlib=:
3213         enable dos_paths
3214         add_cppflags -U__STRICT_ANSI__
3215         ;;
3216     win32|win64)
3217         if enabled shared; then
3218             # Link to the import library instead of the normal static library
3219             # for shared libs.
3220             LD_LIB='%.lib'
3221             # Cannot build shared and static libraries at the same time with
3222             # MSVC.
3223             disable static
3224         fi
3225         shlibdir_default="$bindir_default"
3226         SLIBPREF=""
3227         SLIBSUF=".dll"
3228         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3229         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3230         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3231         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3232         SLIB_INSTALL_LINKS=
3233         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3234         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3235         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3236         objformat="win32"
3237         ranlib=:
3238         enable dos_paths
3239         ;;
3240     cygwin*)
3241         target_os=cygwin
3242         shlibdir_default="$bindir_default"
3243         SLIBPREF="cyg"
3244         SLIBSUF=".dll"
3245         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3246         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3247         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3248         SLIB_INSTALL_LINKS=
3249         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3250         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3251         objformat="win32"
3252         enable dos_paths
3253         ;;
3254     *-dos|freedos|opendos)
3255         network_extralibs="-lsocket"
3256         objformat="coff"
3257         enable dos_paths
3258         add_cppflags -U__STRICT_ANSI__
3259         ;;
3260     linux)
3261         enable dv1394
3262         ;;
3263     irix*)
3264         target_os=irix
3265         ranlib="echo ignoring ranlib"
3266         ;;
3267     os/2*)
3268         strip="lxlite -CS"
3269         ln_s="cp -f"
3270         objformat="aout"
3271         add_cppflags -D_GNU_SOURCE
3272         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3273         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3274         FFSERVERLDFLAGS=""
3275         LIBSUF="_s.a"
3276         SLIBPREF=""
3277         SLIBSUF=".dll"
3278         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3279         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3280         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3281             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3282             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3283             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3284             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3285             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3286         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3287             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3288         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3289         enable dos_paths
3290         enable_weak os2threads
3291         ;;
3292     gnu/kfreebsd)
3293         add_cppflags -D_BSD_SOURCE
3294         ;;
3295     gnu)
3296         ;;
3297     qnx)
3298         add_cppflags -D_QNX_SOURCE
3299         network_extralibs="-lsocket"
3300         ;;
3301     symbian)
3302         SLIBSUF=".dll"
3303         enable dos_paths
3304         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3305         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3306         add_ldflags -Wl,--target1-abs,--no-undefined \
3307                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3308                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3309         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3310                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3311                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3312         ;;
3313     osf1)
3314         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3315         FFSERVERLDFLAGS=
3316         ;;
3317     minix)
3318         ;;
3319     plan9)
3320         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3321                      -D_REENTRANT_SOURCE        \
3322                      -D_RESEARCH_SOURCE         \
3323                      -DFD_SETSIZE=96            \
3324                      -DHAVE_SOCK_OPTS
3325         add_compat strtod.o strtod=avpriv_strtod
3326         network_extralibs='-lbsd'
3327         exeobjs=compat/plan9/main.o
3328         disable ffserver
3329         ln_s='ln -s -f'
3330         cp_f='cp'
3331         ;;
3332     none)
3333         ;;
3334     *)
3335         die "Unknown OS '$target_os'."
3336         ;;
3337 esac
3338
3339 # determine libc flavour
3340
3341 if check_cpp_condition features.h "defined __UCLIBC__"; then
3342     libc_type=uclibc
3343     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3344 elif check_cpp_condition features.h "defined __GLIBC__"; then
3345     libc_type=glibc
3346     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3347 elif check_header _mingw.h; then
3348     libc_type=mingw
3349     check_cpp_condition _mingw.h \
3350         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3351             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3352         die "ERROR: MinGW runtime version must be >= 3.15."
3353     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3354             __MINGW64_VERSION_MAJOR < 3"; then
3355         add_compat msvcrt/snprintf.o
3356         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3357     fi
3358 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3359     libc_type=newlib
3360     add_cppflags -U__STRICT_ANSI__
3361 elif check_func_headers stdlib.h _get_doserrno; then
3362     libc_type=msvcrt
3363     add_compat strtod.o strtod=avpriv_strtod
3364     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3365                                  _snprintf=avpriv_snprintf  \
3366                                  vsnprintf=avpriv_vsnprintf
3367 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3368     libc_type=klibc
3369 fi
3370
3371 test -n "$libc_type" && enable $libc_type
3372
3373 # hacks for compiler/libc/os combinations
3374
3375 if enabled_all tms470 glibc; then
3376     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3377     add_cppflags -D__USER_LABEL_PREFIX__=
3378     add_cppflags -D__builtin_memset=memset
3379     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3380     add_cflags   -pds=48    # incompatible redefinition of macro
3381 fi
3382
3383 if enabled_all ccc glibc; then
3384     add_ldflags -Wl,-z,now  # calls to libots crash without this
3385 fi
3386
3387 esc(){
3388     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3389 }
3390
3391 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3392
3393 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3394
3395 set_default $PATHS_LIST
3396 set_default nm
3397
3398 # we need to build at least one lib type
3399 if ! enabled_any static shared; then
3400     cat <<EOF
3401 At least one library type must be built.
3402 Specify --enable-static to build the static libraries or --enable-shared to
3403 build the shared libraries as well. To only build the shared libraries specify
3404 --disable-static in addition to --enable-shared.
3405 EOF
3406     exit 1;
3407 fi
3408
3409 die_license_disabled() {
3410     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3411 }
3412
3413 die_license_disabled_gpl() {
3414     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3415 }
3416
3417 die_license_disabled gpl libcdio
3418 die_license_disabled gpl libutvideo
3419 die_license_disabled gpl libx264
3420 die_license_disabled gpl libxavs
3421 die_license_disabled gpl libxvid
3422 die_license_disabled gpl x11grab
3423
3424 die_license_disabled nonfree libaacplus
3425 die_license_disabled nonfree libfaac
3426 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3427 enabled gpl && die_license_disabled_gpl nonfree openssl
3428
3429 die_license_disabled version3 libopencore_amrnb
3430 die_license_disabled version3 libopencore_amrwb
3431 die_license_disabled version3 libvo_aacenc
3432 die_license_disabled version3 libvo_amrwbenc
3433
3434 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3435
3436 disabled optimizations || check_cflags -fomit-frame-pointer
3437
3438 enable_pic() {
3439     enable pic
3440     add_cppflags -DPIC
3441     add_cflags   -fPIC
3442     add_asflags  -fPIC
3443 }
3444
3445 enabled pic && enable_pic
3446
3447 check_cc <<EOF || die "Symbol mangling check failed."
3448 int ff_extern;
3449 EOF
3450 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3451 extern_prefix=${sym%%ff_extern*}
3452
3453 check_cc <<EOF && enable_weak inline_asm
3454 void foo(void) { __asm__ volatile ("" ::); }
3455 EOF
3456
3457 _restrict=
3458 for restrict_keyword in restrict __restrict__ __restrict; do
3459     check_cc <<EOF && _restrict=$restrict_keyword && break
3460 void foo(char * $restrict_keyword p);
3461 EOF
3462 done
3463
3464 check_cc <<EOF && enable attribute_packed
3465 struct { int x; } __attribute__((packed)) x;
3466 EOF
3467
3468 check_cc <<EOF && enable attribute_may_alias
3469 union { int x; } __attribute__((may_alias)) x;
3470 EOF
3471
3472 check_cc <<EOF || die "endian test failed"
3473 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3474 EOF
3475 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3476
3477 if enabled alpha; then
3478
3479     check_cflags -mieee
3480
3481 elif enabled arm; then
3482
3483     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3484 float func(float a, float b){ return a+b; }
3485 EOF
3486
3487     enabled thumb && check_cflags -mthumb || check_cflags -marm
3488     nogas=die
3489
3490     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3491         enable vfp_args
3492     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3493         case "${cross_prefix:-$cc}" in
3494             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3495             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3496 __asm__ (".eabi_attribute 28, 1");
3497 int main(void) { return 0; }
3498 EOF
3499         esac
3500         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3501     fi
3502
3503     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3504     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3505     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3506     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3507     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3508     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3509
3510     [ $target_os = linux ] ||
3511         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3512             $ARCH_EXT_LIST_ARM
3513
3514     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3515     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3516
3517     enabled_all armv6t2 shared !pic && enable_pic
3518
3519 elif enabled mips; then
3520
3521     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3522     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3523      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3524     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3525      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3526     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3527      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3528     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3529      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3530
3531 elif enabled parisc; then
3532
3533     if enabled gcc; then
3534         case $($cc -dumpversion) in
3535             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3536         esac
3537     fi
3538
3539 elif enabled ppc; then
3540
3541     enable local_aligned_8 local_aligned_16
3542
3543     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3544     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3545     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3546     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3547
3548     # AltiVec flags: The FSF version of GCC differs from the Apple version
3549     if enabled altivec; then
3550         nogas=warn
3551         check_cflags -maltivec -mabi=altivec &&
3552         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3553         check_cflags -faltivec
3554
3555         # check if our compiler supports Motorola AltiVec C API
3556         check_cc <<EOF || disable altivec
3557 $inc_altivec_h
3558 int main(void) {
3559     vector signed int v1 = (vector signed int) { 0 };
3560     vector signed int v2 = (vector signed int) { 1 };
3561     v1 = vec_add(v1, v2);
3562     return 0;
3563 }
3564 EOF
3565
3566         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3567     fi
3568
3569 elif enabled sparc; then
3570
3571     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3572
3573 elif enabled x86; then
3574
3575     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3576
3577     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3578
3579     enable local_aligned_8 local_aligned_16
3580
3581     # check whether EBP is available on x86
3582     # As 'i' is stored on the stack, this program will crash
3583     # if the base pointer is used to access it because the
3584     # base pointer is cleared in the inline assembly code.
3585     check_exec_crash <<EOF && enable ebp_available
3586 volatile int i=0;
3587 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3588 return i;
3589 EOF
3590
3591     # check whether EBX is available on x86
3592     check_inline_asm ebx_available '""::"b"(0)' &&
3593         check_inline_asm ebx_available '"":::"%ebx"'
3594
3595     # check whether xmm clobbers are supported
3596     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3597
3598     # check whether binutils is new enough to compile SSSE3/MMXEXT
3599     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3600     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3601
3602     if ! disabled_any asm mmx yasm; then
3603         if check_cmd $yasmexe --version; then
3604             enabled x86_64 && yasm_extra="-m amd64"
3605             yasm_debug="-g dwarf2"
3606         elif check_cmd nasm -v; then
3607             yasmexe=nasm
3608             yasm_debug="-g -F dwarf"
3609             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3610         fi
3611
3612         YASMFLAGS="-f $objformat $yasm_extra"
3613         enabled pic               && append YASMFLAGS "-DPIC"
3614         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3615         case "$objformat" in
3616             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3617         esac
3618
3619         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3620             die "yasm not found, use --disable-yasm for a crippled build"
3621         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3622         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3623         check_yasm "CPU amdnop" && enable cpunop
3624     fi
3625
3626     case "$cpu" in
3627         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3628             disable fast_clz
3629         ;;
3630     esac
3631
3632 fi
3633
3634 if enabled asm; then
3635     as=${gas:=$as}
3636     check_as <<EOF && enable gnu_as || \
3637         $nogas "GNU assembler not found, install gas-preprocessor"
3638 .macro m n
3639 \n: .int 0
3640 .endm
3641 m x
3642 EOF
3643 fi
3644
3645 check_ldflags -Wl,--as-needed
3646
3647 if check_func dlopen; then
3648     ldl=
3649 elif check_func dlopen -ldl; then
3650     ldl=-ldl
3651 fi
3652
3653 if ! disabled network; then
3654     check_type "sys/types.h sys/socket.h" socklen_t
3655     check_type netdb.h "struct addrinfo"
3656     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3657     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3658     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3659     check_type netinet/in.h "struct sockaddr_in6"
3660     check_type poll.h "struct pollfd"
3661     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3662     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3663     check_type netinet/sctp.h "struct sctp_event_subscribe"
3664     check_func getaddrinfo $network_extralibs
3665     check_func getservbyport $network_extralibs
3666     # Prefer arpa/inet.h over winsock2
3667     if check_header arpa/inet.h ; then
3668         check_func closesocket
3669     elif check_header winsock2.h ; then
3670         check_func_headers winsock2.h closesocket -lws2 &&
3671             network_extralibs="-lws2" ||
3672         { check_func_headers winsock2.h closesocket -lws2_32 &&
3673             network_extralibs="-lws2_32"; }
3674         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3675         check_type ws2tcpip.h socklen_t
3676         check_type ws2tcpip.h "struct addrinfo"
3677         check_type ws2tcpip.h "struct group_source_req"
3678         check_type ws2tcpip.h "struct ip_mreq_source"
3679         check_type ws2tcpip.h "struct ipv6_mreq"
3680         check_type winsock2.h "struct pollfd"
3681         check_type ws2tcpip.h "struct sockaddr_in6"
3682         check_type ws2tcpip.h "struct sockaddr_storage"
3683         check_struct winsock2.h "struct sockaddr" sa_len
3684     else
3685         disable network
3686     fi
3687 fi
3688
3689 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3690 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3691
3692 check_func  access
3693 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3694 check_func  fcntl
3695 check_func  fork
3696 check_func  gethrtime
3697 check_func  getopt
3698 check_func  getrusage
3699 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3700 check_func  gettimeofday
3701 check_func  inet_aton $network_extralibs
3702 check_func  isatty
3703 check_func  localtime_r
3704 check_func  ${malloc_prefix}memalign            && enable memalign
3705 check_func  mkstemp
3706 check_func  mmap
3707 check_func  mprotect
3708 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3709 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3710 check_func  setrlimit
3711 check_func  strerror_r
3712 check_func  sched_getaffinity
3713 check_func  sysconf
3714 check_func  sysctl
3715 check_func  usleep
3716 check_func_headers conio.h kbhit
3717 check_func_headers windows.h PeekNamedPipe
3718 check_func_headers io.h setmode
3719 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3720 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3721 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3722 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3723 check_func_headers windows.h GetProcessAffinityMask
3724 check_func_headers windows.h GetProcessTimes
3725 check_func_headers windows.h GetSystemTimeAsFileTime
3726 check_func_headers windows.h MapViewOfFile
3727 check_func_headers windows.h SetConsoleTextAttribute
3728 check_func_headers windows.h Sleep
3729 check_func_headers windows.h VirtualAlloc
3730 check_func_headers glob.h glob
3731
3732 check_header direct.h
3733 check_header dlfcn.h
3734 check_header dxva.h
3735 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3736 check_header io.h
3737 check_header libcrystalhd/libcrystalhd_if.h
3738 check_header malloc.h
3739 check_header poll.h
3740 check_header sys/mman.h
3741 check_header sys/param.h
3742 check_header sys/resource.h
3743 check_header sys/select.h
3744 check_header sys/time.h
3745 check_header termios.h
3746 check_header unistd.h
3747 check_header vdpau/vdpau.h
3748 check_header vdpau/vdpau_x11.h
3749 check_header windows.h
3750 check_header X11/extensions/XvMClib.h
3751 check_header asm/types.h
3752
3753 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3754 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3755
3756 # check for VDA header
3757 if ! disabled vda && ! enabled ppc; then
3758     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3759         enable vda
3760         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3761     fi
3762 fi
3763
3764 if ! disabled w32threads && ! enabled pthreads; then
3765     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3766 fi
3767
3768 # check for some common methods of building with pthread support
3769 # do this before the optional library checks as some of them require pthreads
3770 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3771     enable pthreads
3772     if check_func pthread_create; then
3773         :
3774     elif check_func pthread_create -pthread; then
3775         add_cflags -pthread
3776         add_extralibs -pthread
3777     elif check_func pthread_create -pthreads; then
3778         add_cflags -pthreads
3779         add_extralibs -pthreads
3780     elif check_func pthread_create -lpthreadGC2; then
3781         add_extralibs -lpthreadGC2
3782     elif ! check_lib pthread.h pthread_create -lpthread; then
3783         disable pthreads
3784     fi
3785 fi
3786
3787 for thread in $THREADS_LIST; do
3788     if enabled $thread; then
3789         test -n "$thread_type" &&
3790             die "ERROR: Only one thread type must be selected." ||
3791             thread_type="$thread"
3792     fi
3793 done
3794
3795 if enabled pthreads; then
3796   check_func pthread_cancel
3797 fi
3798
3799 check_lib math.h sin -lm && LIBM="-lm"
3800 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3801 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3802
3803 atan2f_args=2
3804 ldexpf_args=2
3805 powf_args=2
3806
3807 for func in $MATH_FUNCS; do
3808     eval check_mathfunc $func \${${func}_args:-1}
3809 done
3810
3811 # these are off by default, so fail if requested and not available
3812 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3813 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3814 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3815 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3816 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3817 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3818 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3819 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3820 enabled libcdio    && require2 libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3821 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3822                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3823                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3824 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3825 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3826 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3827 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"
3828 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3829 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3830 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3831 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3832 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3833 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3834 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3835 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3836 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3837 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3838 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3839                          check_lib openjpeg.h opj_version -lopenjpeg ||
3840                          die "ERROR: libopenjpeg not found"; }
3841 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3842 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3843 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3844 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3845 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3846 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3847 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3848     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3849     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3850 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3851 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3852                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3853                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3854 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3855 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3856 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3857 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3858 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3859 enabled libvpx     && {
3860     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3861                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3862     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3863                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3864 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3865                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3866                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3867 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3868 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3869 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3870                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3871                         die "ERROR: openal not found"; } &&
3872                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3873                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3874 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3875                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3876                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3877                         die "ERROR: openssl not found"; }
3878
3879 if enabled gnutls; then
3880     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3881     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3882 fi
3883
3884 # libdc1394 check
3885 if enabled libdc1394; then
3886     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3887         enable libdc1394_2; } ||
3888     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3889         enable libdc1394_1; } ||
3890     die "ERROR: No version of libdc1394 found "
3891 fi
3892
3893 SDL_CONFIG="${cross_prefix}sdl-config"
3894 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3895     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3896     enable sdl &&
3897     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3898 else
3899   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3900     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3901     sdl_libs=$("${SDL_CONFIG}" --libs)
3902     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3903     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3904     enable sdl &&
3905     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3906   fi
3907 fi
3908 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3909
3910 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3911 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3912 perl --version > /dev/null 2>&1 && enable perl || disable perl
3913 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3914 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3915
3916 check_header linux/fb.h
3917 check_header linux/videodev.h
3918 check_header linux/videodev2.h
3919 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3920
3921 check_header sys/videoio.h
3922
3923 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3924 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3925 # w32api 3.12 had it defined wrong
3926 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3927
3928 check_type "dshow.h" IBaseFilter
3929
3930 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3931 { check_header dev/bktr/ioctl_meteor.h &&
3932   check_header dev/bktr/ioctl_bt848.h; } ||
3933 { check_header machine/ioctl_meteor.h &&
3934   check_header machine/ioctl_bt848.h; } ||
3935 { check_header dev/video/meteor/ioctl_meteor.h &&
3936   check_header dev/video/bktr/ioctl_bt848.h; } ||
3937 check_header dev/ic/bt8xx.h
3938
3939 check_header sndio.h
3940 if check_struct sys/soundcard.h audio_buf_info bytes; then
3941     enable_safe sys/soundcard.h
3942 else
3943     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3944     #include <sys/soundcard.h>
3945     audio_buf_info abc;
3946 EOF
3947 fi
3948 check_header soundcard.h
3949
3950 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3951
3952 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3953     check_func jack_port_get_latency_range -ljack
3954
3955 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3956
3957
3958 enabled x11grab                                           &&
3959 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3960 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3961 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3962
3963 if ! disabled vaapi; then
3964     check_lib va/va.h vaInitialize -lva && {
3965         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3966         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3967     } || disable vaapi
3968 fi
3969
3970 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3971     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3972         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3973 fi
3974
3975 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3976 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3977 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3978
3979 # add some useful compiler flags if supported
3980 check_cflags -Wdeclaration-after-statement
3981 check_cflags -Wall
3982 check_cflags -Wno-parentheses
3983 check_cflags -Wno-switch
3984 check_cflags -Wno-format-zero-length
3985 check_cflags -Wdisabled-optimization
3986 check_cflags -Wpointer-arith
3987 check_cflags -Wredundant-decls
3988 check_cflags -Wno-pointer-sign
3989 check_cflags -Wwrite-strings
3990 check_cflags -Wtype-limits
3991 check_cflags -Wundef
3992 check_cflags -Wmissing-prototypes
3993 check_cflags -Wno-pointer-to-int-cast
3994 check_cflags -Wstrict-prototypes
3995 enabled extra_warnings && check_cflags -Winline
3996
3997 # add some linker flags
3998 check_ldflags -Wl,--warn-common
3999 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4000 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4001
4002 enabled xmm_clobber_test &&
4003     check_ldflags -Wl,--wrap,avcodec_open2              \
4004                   -Wl,--wrap,avcodec_decode_audio4      \
4005                   -Wl,--wrap,avcodec_decode_video2      \
4006                   -Wl,--wrap,avcodec_decode_subtitle2   \
4007                   -Wl,--wrap,avcodec_encode_audio2      \
4008                   -Wl,--wrap,avcodec_encode_video       \
4009                   -Wl,--wrap,avcodec_encode_subtitle    \
4010                   -Wl,--wrap,sws_scale ||
4011     disable xmm_clobber_test
4012
4013 echo "X{};" > $TMPV
4014 if test_ldflags -Wl,--version-script,$TMPV; then
4015     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4016     check_cc <<EOF && enable symver_asm_label
4017 void ff_foo(void) __asm__ ("av_foo@VERSION");
4018 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4019 EOF
4020     check_cc <<EOF && enable symver_gnu_asm
4021 __asm__(".symver ff_foo,av_foo@VERSION");
4022 void ff_foo(void) {}
4023 EOF
4024 fi
4025
4026 if [ -z "$optflags" ]; then
4027     if enabled small; then
4028         optflags=$cflags_size
4029     elif enabled optimizations; then
4030         optflags=$cflags_speed
4031     else
4032         optflags=$cflags_noopt
4033     fi
4034 fi
4035
4036 check_optflags(){
4037     check_cflags "$@"
4038     enabled lto && check_ldflags "$@"
4039 }
4040
4041
4042 if enabled lto; then
4043     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4044     check_cflags  -flto
4045     check_ldflags -flto $cpuflags
4046 fi
4047
4048 check_optflags $optflags
4049 check_optflags -fno-math-errno
4050 check_optflags -fno-signed-zeros
4051
4052 enabled ftrapv && check_cflags -ftrapv
4053
4054 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4055 int x;
4056 EOF
4057
4058
4059 if enabled icc; then
4060     # Just warnings, no remarks
4061     check_cflags -w1
4062     # -wd: Disable following warnings
4063     # 144, 167, 556: -Wno-pointer-sign
4064     # 1292: attribute "foo" ignored
4065     # 1419: external declaration in primary source file
4066     # 10006: ignoring unknown option -fno-signed-zeros
4067     # 10148: ignoring unknown option -Wno-parentheses
4068     # 10156: ignoring option '-W'; no argument required
4069     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4070     # 11030: Warning unknown option --as-needed
4071     # 10156: ignoring option '-export'; no argument required
4072     check_ldflags -wd10156,11030
4073     # Allow to compile with optimizations
4074     check_ldflags -march=$cpu
4075     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4076     enable ebp_available
4077     if enabled x86_32; then
4078         icc_version=$($cc -dumpversion)
4079         test ${icc_version%%.*} -ge 11 &&
4080             check_cflags -falign-stack=maintain-16-byte ||
4081             disable aligned_stack
4082     fi
4083 elif enabled ccc; then
4084     # disable some annoying warnings
4085     add_cflags -msg_disable bitnotint
4086     add_cflags -msg_disable mixfuncvoid
4087     add_cflags -msg_disable nonstandcast
4088     add_cflags -msg_disable unsupieee
4089 elif enabled gcc; then
4090     check_optflags -fno-tree-vectorize
4091     check_cflags -Werror=implicit-function-declaration
4092     check_cflags -Werror=missing-prototypes
4093     check_cflags -Werror=vla
4094 elif enabled llvm_gcc; then
4095     check_cflags -mllvm -stack-alignment=16
4096 elif enabled clang; then
4097     check_cflags -mllvm -stack-alignment=16
4098     check_cflags -Qunused-arguments
4099     check_cflags -Werror=implicit-function-declaration
4100     check_cflags -Werror=missing-prototypes
4101 elif enabled armcc; then
4102     # 2523: use of inline assembler is deprecated
4103     add_cflags -W${armcc_opt},--diag_suppress=2523
4104     add_cflags -W${armcc_opt},--diag_suppress=1207
4105     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4106     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4107     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4108     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4109 elif enabled tms470; then
4110     add_cflags -pds=824 -pds=837
4111 elif enabled pathscale; then
4112     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4113 elif enabled msvc; then
4114     enabled x86_32 && disable aligned_stack
4115 fi
4116
4117 case $target_os in
4118     osf1)
4119         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4120     ;;
4121     plan9)
4122         add_cppflags -Dmain=plan9_main
4123     ;;
4124 esac
4125
4126 enabled_any $THREADS_LIST      && enable threads
4127
4128 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4129
4130 check_deps $CONFIG_LIST       \
4131            $CONFIG_EXTRA      \
4132            $HAVE_LIST         \
4133            $ALL_COMPONENTS    \
4134
4135
4136 if test $target_os = "haiku"; then
4137     disable memalign
4138     disable posix_memalign
4139 fi
4140
4141 ! enabled_any memalign posix_memalign aligned_malloc &&
4142     enabled_any $need_memalign && enable memalign_hack
4143
4144 # add_dep lib dep
4145 # -> enable ${lib}_deps_${dep}
4146 # -> add $dep to ${lib}_deps only once
4147 add_dep() {
4148     lib=$1
4149     dep=$2
4150     enabled "${lib}_deps_${dep}" && return 0
4151     enable  "${lib}_deps_${dep}"
4152     prepend "${lib}_deps" $dep
4153 }
4154
4155 # merge deps lib components
4156 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4157 merge_deps() {
4158     lib=$1
4159     shift
4160     for comp in $*; do
4161         enabled $comp || continue
4162         eval "dep=\"\$${comp}_deps\""
4163         for d in $dep; do
4164             add_dep $lib $d
4165         done
4166     done
4167 }
4168
4169 merge_deps libavfilter $FILTER_LIST
4170
4171 echo "install prefix            $prefix"
4172 echo "source path               $source_path"
4173 echo "C compiler                $cc"
4174 echo "ARCH                      $arch ($cpu)"
4175 if test "$build_suffix" != ""; then
4176     echo "build suffix              $build_suffix"
4177 fi
4178 if test "$progs_suffix" != ""; then
4179     echo "progs suffix              $progs_suffix"
4180 fi
4181 if test "$extra_version" != ""; then
4182     echo "version string suffix     $extra_version"
4183 fi
4184 echo "big-endian                ${bigendian-no}"
4185 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4186 if enabled x86; then
4187     echo "${yasmexe}                      ${yasm-no}"
4188     echo "MMX enabled               ${mmx-no}"
4189     echo "MMXEXT enabled            ${mmxext-no}"
4190     echo "3DNow! enabled            ${amd3dnow-no}"
4191     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4192     echo "SSE enabled               ${sse-no}"
4193     echo "SSSE3 enabled             ${ssse3-no}"
4194     echo "AVX enabled               ${avx-no}"
4195     echo "FMA4 enabled              ${fma4-no}"
4196     echo "CMOV enabled              ${cmov-no}"
4197     echo "CMOV is fast              ${fast_cmov-no}"
4198     echo "EBX available             ${ebx_available-no}"
4199     echo "EBP available             ${ebp_available-no}"
4200 fi
4201 if enabled arm; then
4202     echo "ARMv5TE enabled           ${armv5te-no}"
4203     echo "ARMv6 enabled             ${armv6-no}"
4204     echo "ARMv6T2 enabled           ${armv6t2-no}"
4205     echo "VFP enabled               ${vfp-no}"
4206     echo "NEON enabled              ${neon-no}"
4207     echo "THUMB enabled             ${thumb-no}"
4208 fi
4209 if enabled mips; then
4210     echo "MIPS FPU enabled          ${mipsfpu-no}"
4211     echo "MIPS32R2 enabled          ${mips32r2-no}"
4212     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4213     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4214 fi
4215 if enabled ppc; then
4216     echo "AltiVec enabled           ${altivec-no}"
4217     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4218     echo "dcbzl available           ${dcbzl-no}"
4219 fi
4220 if enabled sparc; then
4221     echo "VIS enabled               ${vis-no}"
4222 fi
4223 echo "debug symbols             ${debug-no}"
4224 echo "strip symbols             ${stripping-no}"
4225 echo "optimize for size         ${small-no}"
4226 echo "optimizations             ${optimizations-no}"
4227 echo "static                    ${static-no}"
4228 echo "shared                    ${shared-no}"
4229 echo "postprocessing support    ${postproc-no}"
4230 echo "new filter support        ${avfilter-no}"
4231 echo "network support           ${network-no}"
4232 echo "threading support         ${thread_type-no}"
4233 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4234 echo "SDL support               ${sdl-no}"
4235 echo "libdxva2 enabled          ${dxva2-no}"
4236 echo "libva enabled             ${vaapi-no}"
4237 echo "libvdpau enabled          ${vdpau-no}"
4238 echo "AVISynth enabled          ${avisynth-no}"
4239 echo "frei0r enabled            ${frei0r-no}"
4240 echo "gnutls enabled            ${gnutls-no}"
4241 echo "libaacplus enabled        ${libaacplus-no}"
4242 echo "libass enabled            ${libass-no}"
4243 echo "libcaca enabled           ${libcaca-no}"
4244 echo "libcdio support           ${libcdio-no}"
4245 echo "libcelt enabled           ${libcelt-no}"
4246 echo "libdc1394 support         ${libdc1394-no}"
4247 echo "libfaac enabled           ${libfaac-no}"
4248 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4249 echo "libgsm enabled            ${libgsm-no}"
4250 echo "libiec61883 support       ${libiec61883-no}"
4251 echo "libilbc enabled           ${libilbc-no}"
4252 echo "libmodplug enabled        ${libmodplug-no}"
4253 echo "libmp3lame enabled        ${libmp3lame-no}"
4254 echo "libnut enabled            ${libnut-no}"
4255 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4256 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4257 echo "libopencv support         ${libopencv-no}"
4258 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4259 echo "libopus enabled           ${libopus-no}"
4260 echo "libpulse enabled          ${libpulse-no}"
4261 echo "librtmp enabled           ${librtmp-no}"
4262 echo "libschroedinger enabled   ${libschroedinger-no}"
4263 echo "libsoxr enabled           ${libsoxr-no}"
4264 echo "libspeex enabled          ${libspeex-no}"
4265 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4266 echo "libtheora enabled         ${libtheora-no}"
4267 echo "libtwolame enabled        ${libtwolame-no}"
4268 echo "libutvideo enabled        ${libutvideo-no}"
4269 echo "libv4l2 enabled           ${libv4l2-no}"
4270 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4271 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4272 echo "libvorbis enabled         ${libvorbis-no}"
4273 echo "libvpx enabled            ${libvpx-no}"
4274 echo "libx264 enabled           ${libx264-no}"
4275 echo "libxavs enabled           ${libxavs-no}"
4276 echo "libxvid enabled           ${libxvid-no}"
4277 echo "openal enabled            ${openal-no}"
4278 echo "openssl enabled           ${openssl-no}"
4279 echo "zlib enabled              ${zlib-no}"
4280 echo "bzlib enabled             ${bzlib-no}"
4281 echo "texi2html enabled         ${texi2html-no}"
4282 echo "perl enabled              ${perl-no}"
4283 echo "pod2man enabled           ${pod2man-no}"
4284 echo "makeinfo enabled          ${makeinfo-no}"
4285 test -n "$random_seed" &&
4286     echo "random seed               ${random_seed}"
4287 echo
4288
4289 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4290     echo "Enabled ${type}s:"
4291     eval list=\$$(toupper $type)_LIST
4292     print_enabled '_*' $list | sort | pr -r -3 -t
4293     echo
4294 done
4295
4296 license="LGPL version 2.1 or later"
4297 if enabled nonfree; then
4298     license="nonfree and unredistributable"
4299 elif enabled gplv3; then
4300     license="GPL version 3 or later"
4301 elif enabled lgplv3; then
4302     license="LGPL version 3 or later"
4303 elif enabled gpl; then
4304     license="GPL version 2 or later"
4305 fi
4306
4307 echo "License: $license"
4308
4309 echo "Creating config.mak and config.h..."
4310
4311 test -e Makefile || $ln_s "$source_path/Makefile" .
4312
4313 enabled stripping || strip="echo skipping strip"
4314
4315 config_files="$TMPH config.mak"
4316
4317 cat > config.mak <<EOF
4318 # Automatically generated by configure - do not modify!
4319 ifndef FFMPEG_CONFIG_MAK
4320 FFMPEG_CONFIG_MAK=1
4321 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4322 prefix=$prefix
4323 LIBDIR=\$(DESTDIR)$libdir
4324 SHLIBDIR=\$(DESTDIR)$shlibdir
4325 INCDIR=\$(DESTDIR)$incdir
4326 BINDIR=\$(DESTDIR)$bindir
4327 DATADIR=\$(DESTDIR)$datadir
4328 MANDIR=\$(DESTDIR)$mandir
4329 SRC_PATH=$source_path
4330 ifndef MAIN_MAKEFILE
4331 SRC_PATH:=\$(SRC_PATH:.%=..%)
4332 endif
4333 CC_IDENT=$cc_ident
4334 ARCH=$arch
4335 CC=$cc
4336 CXX=$cxx
4337 AS=$as
4338 LD=$ld
4339 DEPCC=$dep_cc
4340 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4341 DEPAS=$as
4342 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4343 YASM=$yasmexe
4344 DEPYASM=$yasmexe
4345 AR=$ar
4346 ARFLAGS=$arflags
4347 AR_O=$ar_o
4348 RANLIB=$ranlib
4349 CP=cp -p
4350 LN_S=$ln_s
4351 STRIP=$strip
4352 CPPFLAGS=$CPPFLAGS
4353 CFLAGS=$CFLAGS
4354 CXXFLAGS=$CXXFLAGS
4355 ASFLAGS=$ASFLAGS
4356 AS_C=$AS_C
4357 AS_O=$AS_O
4358 CC_C=$CC_C
4359 CC_E=$CC_E
4360 CC_O=$CC_O
4361 CXX_C=$CXX_C
4362 CXX_O=$CXX_O
4363 LD_O=$LD_O
4364 LD_LIB=$LD_LIB
4365 LD_PATH=$LD_PATH
4366 DLLTOOL=$dlltool
4367 LDFLAGS=$LDFLAGS
4368 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4369 SHFLAGS=$SHFLAGS
4370 YASMFLAGS=$YASMFLAGS
4371 BUILDSUF=$build_suffix
4372 PROGSSUF=$progs_suffix
4373 FULLNAME=$FULLNAME
4374 LIBPREF=$LIBPREF
4375 LIBSUF=$LIBSUF
4376 LIBNAME=$LIBNAME
4377 SLIBPREF=$SLIBPREF
4378 SLIBSUF=$SLIBSUF
4379 EXESUF=$EXESUF
4380 EXTRA_VERSION=$extra_version
4381 CCDEP=$CCDEP
4382 CXXDEP=$CXXDEP
4383 CCDEP_FLAGS=$CCDEP_FLAGS
4384 ASDEP=$ASDEP
4385 ASDEP_FLAGS=$ASDEP_FLAGS
4386 CC_DEPFLAGS=$CC_DEPFLAGS
4387 AS_DEPFLAGS=$AS_DEPFLAGS
4388 HOSTCC=$host_cc
4389 HOSTLD=$host_ld
4390 HOSTCFLAGS=$host_cflags
4391 HOSTEXESUF=$HOSTEXESUF
4392 HOSTLDFLAGS=$host_ldflags
4393 HOSTLIBS=$host_libs
4394 DEPHOSTCC=$host_cc
4395 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4396 HOSTCCDEP=$HOSTCCDEP
4397 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4398 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4399 HOSTCC_C=$HOSTCC_C
4400 HOSTCC_O=$HOSTCC_O
4401 HOSTLD_O=$HOSTLD_O
4402 TARGET_EXEC=$target_exec
4403 TARGET_PATH=$target_path
4404 LIBS-ffplay=$sdl_libs
4405 CFLAGS-ffplay=$sdl_cflags
4406 ZLIB=$($ldflags_filter -lz)
4407 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4408 EXTRALIBS=$extralibs
4409 COMPAT_OBJS=$compat_objs
4410 EXEOBJS=$exeobjs
4411 INSTALL=$install
4412 LIBTARGET=${LIBTARGET}
4413 SLIBNAME=${SLIBNAME}
4414 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4415 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4416 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4417 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4418 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4419 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4420 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4421 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4422 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4423 NOREDZONE_FLAGS=$noredzone_flags
4424 EOF
4425
4426 get_version(){
4427     lcname=lib${1}
4428     name=$(toupper $lcname)
4429     file=$source_path/$lcname/version.h
4430     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4431     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4432     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4433     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4434 }
4435
4436 map 'get_version $v' $LIBRARY_LIST
4437
4438 cat > $TMPH <<EOF
4439 /* Automatically generated by configure - do not modify! */
4440 #ifndef FFMPEG_CONFIG_H
4441 #define FFMPEG_CONFIG_H
4442 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4443 #define FFMPEG_LICENSE "$(c_escape $license)"
4444 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4445 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4446 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4447 #define av_restrict $_restrict
4448 #define EXTERN_PREFIX "${extern_prefix}"
4449 #define EXTERN_ASM ${extern_prefix}
4450 #define SLIBSUF "$SLIBSUF"
4451 #define HAVE_MMX2 HAVE_MMXEXT
4452 EOF
4453
4454 test -n "$assert_level" &&
4455     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4456
4457 test -n "$malloc_prefix" &&
4458     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4459
4460 if enabled yasm; then
4461     append config_files $TMPASM
4462     printf '' >$TMPASM
4463 fi
4464
4465 print_config ARCH_   "$config_files" $ARCH_LIST
4466 print_config HAVE_   "$config_files" $HAVE_LIST
4467 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4468                                      $CONFIG_EXTRA      \
4469                                      $ALL_COMPONENTS    \
4470
4471 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4472 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4473
4474 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4475 cp_if_changed $TMPH config.h
4476 touch .config
4477
4478 enabled yasm && cp_if_changed $TMPASM config.asm
4479
4480 cat > $TMPH <<EOF
4481 /* Generated by ffconf */
4482 #ifndef AVUTIL_AVCONFIG_H
4483 #define AVUTIL_AVCONFIG_H
4484 EOF
4485
4486 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4487
4488 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4489
4490 cp_if_changed $TMPH libavutil/avconfig.h
4491
4492 if test -n "$WARNINGS"; then
4493     printf "\n$WARNINGS"
4494     enabled fatal_warnings && exit 1
4495 fi
4496
4497 # build pkg-config files
4498
4499 pkgconfig_generate(){
4500     name=$1
4501     shortname=${name#lib}${build_suffix}
4502     comment=$2
4503     version=$3
4504     libs=$4
4505     requires=$5
4506     enabled ${name#lib} || return 0
4507     mkdir -p $name
4508     cat <<EOF > $name/$name.pc
4509 prefix=$prefix
4510 exec_prefix=\${prefix}
4511 libdir=$libdir
4512 includedir=$incdir
4513
4514 Name: $name
4515 Description: $comment
4516 Version: $version
4517 Requires: $(enabled shared || echo $requires)
4518 Requires.private: $(enabled shared && echo $requires)
4519 Conflicts:
4520 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4521 Libs.private: $(enabled shared && echo $libs)
4522 Cflags: -I\${includedir}
4523 EOF
4524
4525 mkdir -p doc/examples/pc-uninstalled
4526 includedir=${source_path}
4527 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4528     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4529 prefix=
4530 exec_prefix=
4531 libdir=\${pcfiledir}/../../../$name
4532 includedir=${includedir}
4533
4534 Name: $name
4535 Description: $comment
4536 Version: $version
4537 Requires: $requires
4538 Conflicts:
4539 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4540 Cflags: -I\${includedir}
4541 EOF
4542 }
4543
4544 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4545 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4546 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4547 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4548 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4549 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4550 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4551 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4552
4553 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4554 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4555
4556 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4557 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4558 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4559 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4560 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4561 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4562 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4563 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4564 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4565
4566 fix_ffmpeg_remote(){
4567     git_remote_from=$1
4568     git_remote_to=$2
4569     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4570     if [ "$fixme_remote" != "" ]; then
4571         echolog "
4572 Outdated domain in git config, the official domain for ffmpeg git is since
4573 November 2011, source.ffmpeg.org, both the old and the new point to the same
4574 repository and server. To update it enter the following commands:
4575 "
4576         for remote in $fixme_remote; do
4577             echolog "git remote set-url $remote $git_remote_to"
4578         done
4579     fi
4580 }
4581
4582 if test -f "$source_path/.git/config"; then
4583     remote_from=git.videolan.org
4584     remote_to=source.ffmpeg.org
4585     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4586     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4587 fi