configure

   1 #!/bin/sh
   2 #
   3 # Libav 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 LIBAV, 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 Libav."
  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 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --enable-postproc        enable GPLed postprocessing support [no]
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 182                            native implementation exists [no]
 183   --enable-libvpx          enable VP8 support via libvpx [no]
 184   --enable-libx264         enable H.264 encoding via x264 [no]
 185   --enable-libxavs         enable AVS encoding via xavs [no]
 186   --enable-libxvid         enable Xvid encoding via xvidcore,
 187                            native MPEG-4/Xvid encoder exists [no]
 188   --enable-mlib            enable Sun medialib [no]
 189   --enable-zlib            enable zlib [autodetect]
 190
 191 Advanced options (experts only):
 192   --source-path=PATH       path to source code [$source_path]
 193   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 194   --enable-cross-compile   assume a cross-compiler is used
 195   --sysroot=PATH           root of cross-build tree
 196   --sysinclude=PATH        location of cross-build system headers
 197   --target-os=OS           compiler targets OS [$target_os]
 198   --target-exec=CMD        command to run executables on target
 199   --target-path=DIR        path to view of build directory on target
 200   --nm=NM                  use nm tool
 201   --ar=AR                  use archive tool AR [$ar_default]
 202   --as=AS                  use assembler AS [$as_default]
 203   --cc=CC                  use C compiler CC [$cc_default]
 204   --ld=LD                  use linker LD
 205   --host-cc=HOSTCC         use host C compiler HOSTCC
 206   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 207   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 208   --host-libs=HLIBS        use libs HLIBS when linking for host
 209   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 210   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 211   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 212   --extra-version=STRING   version string suffix []
 213   --build-suffix=SUFFIX    library name suffix []
 214   --arch=ARCH              select architecture [$arch]
 215   --cpu=CPU                select the minimum required CPU (affects
 216                            instruction selection, may crash on older CPUs)
 217   --disable-asm            disable all assembler optimizations
 218   --disable-altivec        disable AltiVec optimizations
 219   --disable-amd3dnow       disable 3DNow! optimizations
 220   --disable-amd3dnowext    disable 3DNow! extended optimizations
 221   --disable-mmx            disable MMX optimizations
 222   --disable-mmx2           disable MMX2 optimizations
 223   --disable-sse            disable SSE optimizations
 224   --disable-ssse3          disable SSSE3 optimizations
 225   --disable-avx            disable AVX optimizations
 226   --disable-armv5te        disable armv5te optimizations
 227   --disable-armv6          disable armv6 optimizations
 228   --disable-armv6t2        disable armv6t2 optimizations
 229   --disable-armvfp         disable ARM VFP optimizations
 230   --disable-iwmmxt         disable iwmmxt optimizations
 231   --disable-mmi            disable MMI optimizations
 232   --disable-neon           disable neon optimizations
 233   --disable-vis            disable VIS optimizations
 234   --disable-yasm           disable use of yasm assembler
 235   --enable-pic             build position-independent code
 236   --malloc-prefix=PFX      prefix malloc and related names with PFX
 237   --enable-sram            allow use of on-chip SRAM
 238   --disable-symver         disable symbol versioning
 239
 240 Developer options (useful when working on Libav itself):
 241   --disable-debug          disable debugging symbols
 242   --enable-debug=LEVEL     set the debug level [$debuglevel]
 243   --disable-optimizations  disable compiler optimizations
 244   --enable-extra-warnings  enable more compiler warnings
 245   --disable-stripping      disable stripping of executables and shared libraries
 246   --samples=PATH           location of test samples for FATE, if not set use
 247                            \$FATE_SAMPLES at make invocation time.
 248
 249 NOTE: Object files are built at the place where configure is launched.
 250 EOF
 251   exit 0
 252 }
 253
 254 quotes='""'
 255
 256 log(){
 257     echo "$@" >> $logfile
 258 }
 259
 260 log_file(){
 261     log BEGIN $1
 262     pr -n -t $1 >> $logfile
 263     log END $1
 264 }
 265
 266 echolog(){
 267     log "$@"
 268     echo "$@"
 269 }
 270
 271 warn(){
 272     log "WARNING: $*"
 273     WARNINGS="${WARNINGS}WARNING: $*\n"
 274 }
 275
 276 die(){
 277     echolog "$@"
 278     cat <<EOF
 279
 280 If you think configure made a mistake, make sure you are using the latest
 281 version from Git.  If the latest version fails, report the problem to the
 282 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 283 EOF
 284     if disabled logging; then
 285         cat <<EOF
 286 Rerun configure with logging enabled (do not use --disable-logging), and
 287 include the log this produces with your report.
 288 EOF
 289     else
 290 cat <<EOF
 291 Include the log file "$logfile" produced by configure as this will help
 292 solving the problem.
 293 EOF
 294     fi
 295     exit 1
 296 }
 297
 298 # Avoid locale weirdness, besides we really just want to translate ASCII.
 299 toupper(){
 300     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 301 }
 302
 303 tolower(){
 304     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 305 }
 306
 307 c_escape(){
 308     echo "$*" | sed 's/["\\]/\\\0/g'
 309 }
 310
 311 sh_quote(){
 312     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 313     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 314     echo "$v"
 315 }
 316
 317 cleanws(){
 318     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 319 }
 320
 321 filter(){
 322     pat=$1
 323     shift
 324     for v; do
 325         eval "case $v in $pat) echo $v ;; esac"
 326     done
 327 }
 328
 329 filter_out(){
 330     pat=$1
 331     shift
 332     for v; do
 333         eval "case $v in $pat) ;; *) echo $v ;; esac"
 334     done
 335 }
 336
 337 map(){
 338     m=$1
 339     shift
 340     for v; do eval $m; done
 341 }
 342
 343 set_all(){
 344     value=$1
 345     shift
 346     for var in $*; do
 347         eval $var=$value
 348     done
 349 }
 350
 351 set_weak(){
 352     value=$1
 353     shift
 354     for var; do
 355         eval : \${$var:=$value}
 356     done
 357 }
 358
 359 set_safe(){
 360     var=$1
 361     shift
 362     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 363 }
 364
 365 get_safe(){
 366     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 367 }
 368
 369 pushvar(){
 370     for var in $*; do
 371         eval level=\${${var}_level:=0}
 372         eval ${var}_${level}="\$$var"
 373         eval ${var}_level=$(($level+1))
 374     done
 375 }
 376
 377 popvar(){
 378     for var in $*; do
 379         eval level=\${${var}_level:-0}
 380         test $level = 0 && continue
 381         eval level=$(($level-1))
 382         eval $var="\${${var}_${level}}"
 383         eval ${var}_level=$level
 384         eval unset ${var}_${level}
 385     done
 386 }
 387
 388 enable(){
 389     set_all yes $*
 390 }
 391
 392 disable(){
 393     set_all no $*
 394 }
 395
 396 enable_weak(){
 397     set_weak yes $*
 398 }
 399
 400 disable_weak(){
 401     set_weak no $*
 402 }
 403
 404 enable_safe(){
 405     for var; do
 406         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 407     done
 408 }
 409
 410 disable_safe(){
 411     for var; do
 412         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 413     done
 414 }
 415
 416 do_enable_deep(){
 417     for var; do
 418         enabled $var && continue
 419         eval sel="\$${var}_select"
 420         eval sgs="\$${var}_suggest"
 421         pushvar var sgs
 422         enable_deep $sel
 423         popvar sgs
 424         enable_deep_weak $sgs
 425         popvar var
 426     done
 427 }
 428
 429 enable_deep(){
 430     do_enable_deep $*
 431     enable $*
 432 }
 433
 434 enable_deep_weak(){
 435     do_enable_deep $*
 436     enable_weak $*
 437 }
 438
 439 enabled(){
 440     test "${1#!}" = "$1" && op== || op=!=
 441     eval test "x\$${1#!}" $op "xyes"
 442 }
 443
 444 disabled(){
 445     test "${1#!}" = "$1" && op== || op=!=
 446     eval test "x\$${1#!}" $op "xno"
 447 }
 448
 449 enabled_all(){
 450     for opt; do
 451         enabled $opt || return 1
 452     done
 453 }
 454
 455 disabled_all(){
 456     for opt; do
 457         disabled $opt || return 1
 458     done
 459 }
 460
 461 enabled_any(){
 462     for opt; do
 463         enabled $opt && return 0
 464     done
 465 }
 466
 467 disabled_any(){
 468     for opt; do
 469         disabled $opt && return 0
 470     done
 471     return 1
 472 }
 473
 474 set_default(){
 475     for opt; do
 476         eval : \${$opt:=\$${opt}_default}
 477     done
 478 }
 479
 480 is_in(){
 481     value=$1
 482     shift
 483     for var in $*; do
 484         [ $var = $value ] && return 0
 485     done
 486     return 1
 487 }
 488
 489 check_deps(){
 490     for cfg; do
 491         cfg="${cfg#!}"
 492         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 493         disabled ${cfg}_checking && continue
 494         enable ${cfg}_checking
 495
 496         eval dep_all="\$${cfg}_deps"
 497         eval dep_any="\$${cfg}_deps_any"
 498         eval dep_sel="\$${cfg}_select"
 499         eval dep_sgs="\$${cfg}_suggest"
 500         eval dep_ifa="\$${cfg}_if"
 501         eval dep_ifn="\$${cfg}_if_any"
 502
 503         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 504         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 505         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 506
 507         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 508         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 509         enabled_all  $dep_all || disable $cfg
 510         enabled_any  $dep_any || disable $cfg
 511         disabled_any $dep_sel && disable $cfg
 512
 513         if enabled $cfg; then
 514             eval dep_extralibs="\$${cfg}_extralibs"
 515             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 516             enable_deep $dep_sel
 517             enable_deep_weak $dep_sgs
 518         fi
 519
 520         disable ${cfg}_checking
 521     done
 522 }
 523
 524 print_config_h(){
 525     enabled $1 && v=1 || v=0
 526     echo "#define $2 $v"
 527 }
 528
 529 print_config_mak(){
 530     enabled $1 && v= || v=!
 531     echo "$v$2=yes"
 532 }
 533
 534 print_config_asm(){
 535     enabled $1 && echo "%define $2"
 536 }
 537
 538 print_config(){
 539     pfx=$1
 540     files=$2
 541     shift 2
 542     for cfg; do
 543         ucname="$(toupper $cfg)"
 544         for f in $files; do
 545             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 546         done
 547     done
 548 }
 549
 550 print_enabled(){
 551     test "$1" = -n && end=" " && shift || end="\n"
 552     suf=$1
 553     shift
 554     for v; do
 555         enabled $v && printf "%s$end" ${v%$suf};
 556     done
 557 }
 558
 559 append(){
 560     var=$1
 561     shift
 562     eval "$var=\"\$$var $*\""
 563 }
 564
 565 prepend(){
 566     var=$1
 567     shift
 568     eval "$var=\"$* \$$var\""
 569 }
 570
 571 add_cppflags(){
 572     append CPPFLAGS $($filter_cppflags "$@")
 573 }
 574
 575 add_cflags(){
 576     append CFLAGS $($filter_cflags "$@")
 577 }
 578
 579 add_asflags(){
 580     append ASFLAGS $($filter_asflags "$@")
 581 }
 582
 583 add_ldflags(){
 584     append LDFLAGS "$@"
 585 }
 586
 587 add_extralibs(){
 588     prepend extralibs "$@"
 589 }
 590
 591 check_cmd(){
 592     log "$@"
 593     "$@" >> $logfile 2>&1
 594 }
 595
 596 check_cc(){
 597     log check_cc "$@"
 598     cat > $TMPC
 599     log_file $TMPC
 600     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 601 }
 602
 603 check_cpp(){
 604     log check_cpp "$@"
 605     cat > $TMPC
 606     log_file $TMPC
 607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 608 }
 609
 610 check_as(){
 611     log check_as "$@"
 612     cat > $TMPC
 613     log_file $TMPC
 614     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 615 }
 616
 617 check_asm(){
 618     log check_asm "$@"
 619     name="$1"
 620     code="$2"
 621     shift 2
 622     disable $name
 623     check_as "$@" <<EOF && enable $name
 624 void foo(void){ __asm__ volatile($code); }
 625 EOF
 626 }
 627
 628 check_yasm(){
 629     log check_yasm "$@"
 630     echo "$1" > $TMPS
 631     log_file $TMPS
 632     shift 1
 633     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 634 }
 635
 636 check_ld(){
 637     log check_ld "$@"
 638     flags=''
 639     libs=''
 640     for f; do
 641         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 642     done
 643     check_cc $($filter_cflags $flags) || return
 644     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 645 }
 646
 647 check_cppflags(){
 648     log check_cppflags "$@"
 649     set -- $($filter_cppflags "$@")
 650     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 651 int x;
 652 EOF
 653 }
 654
 655 check_cflags(){
 656     log check_cflags "$@"
 657     set -- $($filter_cflags "$@")
 658     check_cc "$@" <<EOF && append CFLAGS "$@"
 659 int x;
 660 EOF
 661 }
 662
 663 test_ldflags(){
 664     log test_ldflags "$@"
 665     check_ld "$@" <<EOF
 666 int main(void){ return 0; }
 667 EOF
 668 }
 669
 670 check_ldflags(){
 671     log check_ldflags "$@"
 672     test_ldflags "$@" && add_ldflags "$@"
 673 }
 674
 675 check_header(){
 676     log check_header "$@"
 677     header=$1
 678     shift
 679     disable_safe $header
 680     check_cpp "$@" <<EOF && enable_safe $header
 681 #include <$header>
 682 int x;
 683 EOF
 684 }
 685
 686 check_func(){
 687     log check_func "$@"
 688     func=$1
 689     shift
 690     disable $func
 691     check_ld "$@" <<EOF && enable $func
 692 extern int $func();
 693 int main(void){ $func(); }
 694 EOF
 695 }
 696
 697 check_mathfunc(){
 698     log check_mathfunc "$@"
 699     func=$1
 700     shift
 701     disable $func
 702     check_ld "$@" <<EOF && enable $func
 703 #include <math.h>
 704 float foo(float f) { return $func(f); }
 705 int main(void){ return 0; }
 706 EOF
 707 }
 708
 709 check_func_headers(){
 710     log check_func_headers "$@"
 711     headers=$1
 712     funcs=$2
 713     shift 2
 714     {
 715         for hdr in $headers; do
 716             echo "#include <$hdr>"
 717         done
 718         for func in $funcs; do
 719             echo "long check_$func(void) { return (long) $func; }"
 720         done
 721         echo "int main(void) { return 0; }"
 722     } | check_ld "$@" && enable $funcs && enable_safe $headers
 723 }
 724
 725 check_cpp_condition(){
 726     log check_cpp_condition "$@"
 727     header=$1
 728     condition=$2
 729     shift 2
 730     check_cpp $($filter_cppflags "$@") <<EOF
 731 #include <$header>
 732 #if !($condition)
 733 #error "unsatisfied condition: $condition"
 734 #endif
 735 EOF
 736 }
 737
 738 check_lib(){
 739     log check_lib "$@"
 740     header="$1"
 741     func="$2"
 742     shift 2
 743     check_header $header && check_func $func "$@" && add_extralibs "$@"
 744 }
 745
 746 check_lib2(){
 747     log check_lib2 "$@"
 748     headers="$1"
 749     funcs="$2"
 750     shift 2
 751     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 752 }
 753
 754 check_pkg_config(){
 755     log check_pkg_config "$@"
 756     pkg="$1"
 757     headers="$2"
 758     funcs="$3"
 759     shift 3
 760     $pkg_config --exists $pkg || return
 761     pkg_cflags=$($pkg_config --cflags $pkg)
 762     pkg_libs=$($pkg_config --libs $pkg)
 763     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 764         set_safe ${pkg}_cflags $pkg_cflags   &&
 765         set_safe ${pkg}_libs   $pkg_libs
 766 }
 767
 768 check_exec(){
 769     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 770 }
 771
 772 check_exec_crash(){
 773     code=$(cat)
 774
 775     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 776     # are safe but may not be available everywhere.  Thus we use
 777     # raise(SIGTERM) instead.  The check is run in a subshell so we
 778     # can redirect the "Terminated" message from the shell.  SIGBUS
 779     # is not defined by standard C so it is used conditionally.
 780
 781     (check_exec "$@") >> $logfile 2>&1 <<EOF
 782 #include <signal.h>
 783 static void sighandler(int sig){
 784     raise(SIGTERM);
 785 }
 786 int main(void){
 787     signal(SIGILL, sighandler);
 788     signal(SIGFPE, sighandler);
 789     signal(SIGSEGV, sighandler);
 790 #ifdef SIGBUS
 791     signal(SIGBUS, sighandler);
 792 #endif
 793     { $code }
 794 }
 795 EOF
 796 }
 797
 798 check_type(){
 799     log check_type "$@"
 800     headers=$1
 801     type=$2
 802     shift 2
 803     disable_safe "$type"
 804     incs=""
 805     for hdr in $headers; do
 806         incs="$incs
 807 #include <$hdr>"
 808     done
 809     check_cc "$@" <<EOF && enable_safe "$type"
 810 $incs
 811 $type v;
 812 EOF
 813 }
 814
 815 check_struct(){
 816     log check_type "$@"
 817     headers=$1
 818     struct=$2
 819     member=$3
 820     shift 3
 821     disable_safe "${struct}_${member}"
 822     incs=""
 823     for hdr in $headers; do
 824         incs="$incs
 825 #include <$hdr>"
 826     done
 827     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 828 $incs
 829 const void *p = &(($struct *)0)->$member;
 830 EOF
 831 }
 832
 833 require(){
 834     name="$1"
 835     header="$2"
 836     func="$3"
 837     shift 3
 838     check_lib $header $func "$@" || die "ERROR: $name not found"
 839 }
 840
 841 require2(){
 842     name="$1"
 843     headers="$2"
 844     func="$3"
 845     shift 3
 846     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 847 }
 848
 849 require_pkg_config(){
 850     pkg="$1"
 851     check_pkg_config "$@" || die "ERROR: $pkg not found"
 852     add_cflags    $(get_safe ${pkg}_cflags)
 853     add_extralibs $(get_safe ${pkg}_libs)
 854 }
 855
 856 check_host_cc(){
 857     log check_host_cc "$@"
 858     cat > $TMPC
 859     log_file $TMPC
 860     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 861 }
 862
 863 check_host_cflags(){
 864     log check_host_cflags "$@"
 865     check_host_cc "$@" <<EOF && append host_cflags "$@"
 866 int x;
 867 EOF
 868 }
 869
 870 apply(){
 871     file=$1
 872     shift
 873     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 874 }
 875
 876 cp_if_changed(){
 877     cmp -s "$1" "$2" &&
 878         echo "$2 is unchanged" ||
 879         cp -f "$1" "$2"
 880 }
 881
 882 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 883 # system-dependent things.
 884
 885 COMPONENT_LIST="
 886     bsfs
 887     decoders
 888     demuxers
 889     encoders
 890     filters
 891     hwaccels
 892     indevs
 893     muxers
 894     outdevs
 895     parsers
 896     protocols
 897 "
 898
 899 CONFIG_LIST="
 900     $COMPONENT_LIST
 901     aandct
 902     ac3dsp
 903     avcodec
 904     avdevice
 905     avfilter
 906     avformat
 907     avisynth
 908     bzlib
 909     dct
 910     doc
 911     dwt
 912     dxva2
 913     fastdiv
 914     ffmpeg
 915     ffplay
 916     ffprobe
 917     ffserver
 918     fft
 919     frei0r
 920     golomb
 921     gpl
 922     gray
 923     h264dsp
 924     h264pred
 925     hardcoded_tables
 926     huffman
 927     libdc1394
 928     libdirac
 929     libfaac
 930     libgsm
 931     libmp3lame
 932     libnut
 933     libopencore_amrnb
 934     libopencore_amrwb
 935     libopencv
 936     libopenjpeg
 937     librtmp
 938     libschroedinger
 939     libspeex
 940     libtheora
 941     libvorbis
 942     libvpx
 943     libx264
 944     libxavs
 945     libxvid
 946     lpc
 947     lsp
 948     mdct
 949     memalign_hack
 950     mlib
 951     mpegaudio_hp
 952     network
 953     nonfree
 954     pic
 955     postproc
 956     rdft
 957     rtpdec
 958     runtime_cpudetect
 959     shared
 960     sinewin
 961     small
 962     sram
 963     static
 964     swscale
 965     swscale_alpha
 966     vaapi
 967     vdpau
 968     version3
 969     x11grab
 970     zlib
 971 "
 972
 973 THREADS_LIST='
 974     pthreads
 975     w32threads
 976 '
 977
 978 ARCH_LIST='
 979     alpha
 980     arm
 981     avr32
 982     avr32_ap
 983     avr32_uc
 984     bfin
 985     ia64
 986     m68k
 987     mips
 988     mips64
 989     parisc
 990     ppc
 991     ppc64
 992     s390
 993     sh4
 994     sparc
 995     sparc64
 996     tomi
 997     x86
 998     x86_32
 999     x86_64
1000 '
1001
1002 ARCH_EXT_LIST='
1003     altivec
1004     amd3dnow
1005     amd3dnowext
1006     armv5te
1007     armv6
1008     armv6t2
1009     armvfp
1010     avx
1011     iwmmxt
1012     mmi
1013     mmx
1014     mmx2
1015     neon
1016     ppc4xx
1017     sse
1018     ssse3
1019     vis
1020 '
1021
1022 HAVE_LIST_PUB='
1023     bigendian
1024     fast_unaligned
1025 '
1026
1027 HAVE_LIST="
1028     $ARCH_EXT_LIST
1029     $HAVE_LIST_PUB
1030     $THREADS_LIST
1031     aligned_stack
1032     alsa_asoundlib_h
1033     altivec_h
1034     arpa_inet_h
1035     attribute_may_alias
1036     attribute_packed
1037     bswap
1038     closesocket
1039     cmov
1040     dcbzl
1041     dev_bktr_ioctl_bt848_h
1042     dev_bktr_ioctl_meteor_h
1043     dev_ic_bt8xx_h
1044     dev_video_meteor_ioctl_meteor_h
1045     dev_video_bktr_ioctl_bt848_h
1046     dlfcn_h
1047     dlopen
1048     dos_paths
1049     ebp_available
1050     ebx_available
1051     exp2
1052     exp2f
1053     fast_64bit
1054     fast_clz
1055     fast_cmov
1056     fcntl
1057     fork
1058     getaddrinfo
1059     gethrtime
1060     GetProcessMemoryInfo
1061     GetProcessTimes
1062     getrusage
1063     gnu_as
1064     struct_rusage_ru_maxrss
1065     ibm_asm
1066     inet_aton
1067     inline_asm
1068     isatty
1069     kbhit
1070     ldbrx
1071     libdc1394_1
1072     libdc1394_2
1073     llrint
1074     llrintf
1075     local_aligned_16
1076     local_aligned_8
1077     log2
1078     log2f
1079     loongson
1080     lrint
1081     lrintf
1082     lzo1x_999_compress
1083     machine_ioctl_bt848_h
1084     machine_ioctl_meteor_h
1085     malloc_h
1086     MapViewOfFile
1087     memalign
1088     mkstemp
1089     mmap
1090     pld
1091     posix_memalign
1092     round
1093     roundf
1094     sdl
1095     sdl_video_size
1096     setmode
1097     socklen_t
1098     soundcard_h
1099     poll_h
1100     setrlimit
1101     strerror_r
1102     strtok_r
1103     struct_addrinfo
1104     struct_ipv6_mreq
1105     struct_sockaddr_in6
1106     struct_sockaddr_sa_len
1107     struct_sockaddr_storage
1108     symver
1109     symver_gnu_asm
1110     symver_asm_label
1111     sys_mman_h
1112     sys_resource_h
1113     sys_select_h
1114     sys_soundcard_h
1115     sys_videoio_h
1116     ten_operands
1117     threads
1118     truncf
1119     vfp_args
1120     VirtualAlloc
1121     winsock2_h
1122     xform_asm
1123     xmm_clobbers
1124     yasm
1125 "
1126
1127 # options emitted with CONFIG_ prefix but not available on command line
1128 CONFIG_EXTRA="
1129     avutil
1130     gplv3
1131     lgplv3
1132 "
1133
1134 CMDLINE_SELECT="
1135     $ARCH_EXT_LIST
1136     $CONFIG_LIST
1137     $THREADS_LIST
1138     asm
1139     cross_compile
1140     debug
1141     extra_warnings
1142     logging
1143     optimizations
1144     stripping
1145     symver
1146     yasm
1147 "
1148
1149 PATHS_LIST='
1150     bindir
1151     datadir
1152     incdir
1153     libdir
1154     mandir
1155     prefix
1156     shlibdir
1157 '
1158
1159 CMDLINE_SET="
1160     $PATHS_LIST
1161     ar
1162     arch
1163     as
1164     build_suffix
1165     cc
1166     cpu
1167     cross_prefix
1168     dep_cc
1169     extra_version
1170     host_cc
1171     host_cflags
1172     host_ldflags
1173     host_libs
1174     host_os
1175     ld
1176     logfile
1177     malloc_prefix
1178     nm
1179     pkg_config
1180     samples
1181     source_path
1182     strip
1183     sysinclude
1184     sysroot
1185     target_exec
1186     target_os
1187     target_path
1188 "
1189
1190 CMDLINE_APPEND="
1191     extra_cflags
1192 "
1193
1194 # code dependency declarations
1195
1196 # architecture extensions
1197
1198 armv5te_deps="arm"
1199 armv6_deps="arm"
1200 armv6t2_deps="arm"
1201 armvfp_deps="arm"
1202 iwmmxt_deps="arm"
1203 neon_deps="arm"
1204
1205 mmi_deps="mips"
1206
1207 altivec_deps="ppc"
1208 ppc4xx_deps="ppc"
1209
1210 vis_deps="sparc"
1211
1212 x86_64_suggest="cmov fast_cmov"
1213 amd3dnow_deps="mmx"
1214 amd3dnowext_deps="amd3dnow"
1215 mmx_deps="x86"
1216 mmx2_deps="mmx"
1217 sse_deps="mmx"
1218 ssse3_deps="sse"
1219 avx_deps="ssse3"
1220
1221 aligned_stack_if_any="ppc x86"
1222 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1223 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1224 fast_unaligned_if_any="armv6 ppc x86"
1225
1226 need_memalign="altivec neon sse"
1227 inline_asm_deps="!tms470"
1228
1229 symver_if_any="symver_asm_label symver_gnu_asm"
1230
1231 # subsystems
1232 dct_select="rdft"
1233 mdct_select="fft"
1234 rdft_select="fft"
1235
1236 # decoders / encoders / hardware accelerators
1237 aac_decoder_select="mdct rdft sinewin"
1238 aac_encoder_select="mdct sinewin"
1239 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1240 ac3_decoder_select="mdct ac3_parser"
1241 ac3_encoder_select="mdct ac3dsp"
1242 ac3_fixed_encoder_select="ac3dsp"
1243 alac_encoder_select="lpc"
1244 amrnb_decoder_select="lsp"
1245 amrwb_decoder_select="lsp"
1246 atrac1_decoder_select="mdct sinewin"
1247 atrac3_decoder_select="mdct"
1248 binkaudio_dct_decoder_select="mdct rdft dct"
1249 binkaudio_rdft_decoder_select="mdct rdft"
1250 cavs_decoder_select="golomb"
1251 cook_decoder_select="mdct sinewin"
1252 cscd_decoder_suggest="zlib"
1253 dca_decoder_select="mdct"
1254 dnxhd_encoder_select="aandct"
1255 dxa_decoder_select="zlib"
1256 eac3_decoder_select="ac3_decoder"
1257 eamad_decoder_select="aandct"
1258 eatgq_decoder_select="aandct"
1259 eatqi_decoder_select="aandct"
1260 ffv1_decoder_select="golomb"
1261 flac_decoder_select="golomb"
1262 flac_encoder_select="golomb lpc"
1263 flashsv_decoder_select="zlib"
1264 flashsv_encoder_select="zlib"
1265 flv_decoder_select="h263_decoder"
1266 flv_encoder_select="h263_encoder"
1267 fraps_decoder_select="huffman"
1268 h261_encoder_select="aandct"
1269 h263_decoder_select="h263_parser"
1270 h263_encoder_select="aandct"
1271 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1272 h263i_decoder_select="h263_decoder"
1273 h263p_encoder_select="h263_encoder"
1274 h264_decoder_select="golomb h264dsp h264pred"
1275 h264_dxva2_hwaccel_deps="dxva2api_h"
1276 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1277 h264_vaapi_hwaccel_select="vaapi"
1278 h264_vdpau_decoder_select="vdpau h264_decoder"
1279 imc_decoder_select="fft mdct"
1280 jpegls_decoder_select="golomb"
1281 jpegls_encoder_select="golomb"
1282 ljpeg_encoder_select="aandct"
1283 loco_decoder_select="golomb"
1284 mjpeg_encoder_select="aandct"
1285 mlp_decoder_select="mlp_parser"
1286 mp1float_decoder_select="dct"
1287 mp2float_decoder_select="dct"
1288 mp3adufloat_decoder_select="dct"
1289 mp3float_decoder_select="dct"
1290 mp3on4float_decoder_select="dct"
1291 mpeg1video_encoder_select="aandct"
1292 mpeg2video_encoder_select="aandct"
1293 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1294 mpeg4_encoder_select="h263_encoder"
1295 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1296 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1297 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1298 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1299 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1300 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1301 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1302 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1303 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1304 msmpeg4v1_decoder_select="h263_decoder"
1305 msmpeg4v1_encoder_select="h263_encoder"
1306 msmpeg4v2_decoder_select="h263_decoder"
1307 msmpeg4v2_encoder_select="h263_encoder"
1308 msmpeg4v3_decoder_select="h263_decoder"
1309 msmpeg4v3_encoder_select="h263_encoder"
1310 nellymoser_decoder_select="mdct sinewin"
1311 nellymoser_encoder_select="mdct sinewin"
1312 png_decoder_select="zlib"
1313 png_encoder_select="zlib"
1314 qcelp_decoder_select="lsp"
1315 qdm2_decoder_select="mdct rdft"
1316 ra_144_encoder_select="lpc"
1317 rv10_decoder_select="h263_decoder"
1318 rv10_encoder_select="h263_encoder"
1319 rv20_decoder_select="h263_decoder"
1320 rv20_encoder_select="h263_encoder"
1321 rv30_decoder_select="golomb h264pred"
1322 rv40_decoder_select="golomb h264pred"
1323 shorten_decoder_select="golomb"
1324 sipr_decoder_select="lsp"
1325 snow_decoder_select="dwt"
1326 snow_encoder_select="aandct dwt"
1327 svq1_encoder_select="aandct"
1328 svq3_decoder_select="golomb h264dsp h264pred"
1329 svq3_decoder_suggest="zlib"
1330 theora_decoder_select="vp3_decoder"
1331 tiff_decoder_suggest="zlib"
1332 tiff_encoder_suggest="zlib"
1333 truehd_decoder_select="mlp_decoder"
1334 tscc_decoder_select="zlib"
1335 twinvq_decoder_select="mdct lsp sinewin"
1336 vc1_decoder_select="h263_decoder"
1337 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1338 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1339 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1340 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1341 vorbis_decoder_select="mdct"
1342 vorbis_encoder_select="mdct"
1343 vp6_decoder_select="huffman"
1344 vp6a_decoder_select="vp6_decoder"
1345 vp6f_decoder_select="vp6_decoder"
1346 vp8_decoder_select="h264pred"
1347 wmapro_decoder_select="mdct sinewin"
1348 wmav1_decoder_select="mdct sinewin"
1349 wmav1_encoder_select="mdct sinewin"
1350 wmav2_decoder_select="mdct sinewin"
1351 wmav2_encoder_select="mdct sinewin"
1352 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1353 wmv1_decoder_select="h263_decoder"
1354 wmv1_encoder_select="h263_encoder"
1355 wmv2_decoder_select="h263_decoder"
1356 wmv2_encoder_select="h263_encoder"
1357 wmv3_decoder_select="vc1_decoder"
1358 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1359 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1360 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1361 zlib_decoder_select="zlib"
1362 zlib_encoder_select="zlib"
1363 zmbv_decoder_select="zlib"
1364 zmbv_encoder_select="zlib"
1365
1366 vaapi_deps="va_va_h"
1367 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1368
1369 # parsers
1370 h264_parser_select="golomb h264dsp h264pred"
1371
1372 # external libraries
1373 libdirac_decoder_deps="libdirac !libschroedinger"
1374 libdirac_encoder_deps="libdirac"
1375 libfaac_encoder_deps="libfaac"
1376 libgsm_decoder_deps="libgsm"
1377 libgsm_encoder_deps="libgsm"
1378 libgsm_ms_decoder_deps="libgsm"
1379 libgsm_ms_encoder_deps="libgsm"
1380 libmp3lame_encoder_deps="libmp3lame"
1381 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1382 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1383 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1384 libopenjpeg_decoder_deps="libopenjpeg"
1385 libschroedinger_decoder_deps="libschroedinger"
1386 libschroedinger_encoder_deps="libschroedinger"
1387 libspeex_decoder_deps="libspeex"
1388 libtheora_encoder_deps="libtheora"
1389 libvorbis_encoder_deps="libvorbis"
1390 libvpx_decoder_deps="libvpx"
1391 libvpx_encoder_deps="libvpx"
1392 libx264_encoder_deps="libx264"
1393 libxavs_encoder_deps="libxavs"
1394 libxvid_encoder_deps="libxvid"
1395
1396 # demuxers / muxers
1397 ac3_demuxer_select="ac3_parser"
1398 asf_stream_muxer_select="asf_muxer"
1399 avisynth_demuxer_deps="avisynth"
1400 dirac_demuxer_select="dirac_parser"
1401 eac3_demuxer_select="ac3_parser"
1402 flac_demuxer_select="flac_parser"
1403 ipod_muxer_select="mov_muxer"
1404 libnut_demuxer_deps="libnut"
1405 libnut_muxer_deps="libnut"
1406 matroska_audio_muxer_select="matroska_muxer"
1407 matroska_demuxer_suggest="zlib bzlib"
1408 mov_demuxer_suggest="zlib"
1409 mp3_demuxer_select="mpegaudio_parser"
1410 mp4_muxer_select="mov_muxer"
1411 mpegtsraw_demuxer_select="mpegts_demuxer"
1412 mxf_d10_muxer_select="mxf_muxer"
1413 ogg_demuxer_select="golomb"
1414 psp_muxer_select="mov_muxer"
1415 rtp_demuxer_select="sdp_demuxer"
1416 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1417 rtsp_demuxer_select="http_protocol rtpdec"
1418 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1419 sap_demuxer_select="sdp_demuxer"
1420 sap_muxer_select="rtp_muxer rtp_protocol"
1421 sdp_demuxer_select="rtpdec"
1422 spdif_muxer_select="aac_parser"
1423 tg2_muxer_select="mov_muxer"
1424 tgp_muxer_select="mov_muxer"
1425 w64_demuxer_deps="wav_demuxer"
1426
1427 # indevs / outdevs
1428 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1429 alsa_outdev_deps="alsa_asoundlib_h"
1430 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1431 dv1394_indev_deps="dv1394 dv_demuxer"
1432 jack_indev_deps="jack_jack_h"
1433 libdc1394_indev_deps="libdc1394"
1434 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1435 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1436 v4l_indev_deps="linux_videodev_h"
1437 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1438 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1439 vfwcap_indev_extralibs="-lavicap32"
1440 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1441 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1442
1443 # protocols
1444 gopher_protocol_deps="network"
1445 http_protocol_deps="network"
1446 http_protocol_select="tcp_protocol"
1447 mmsh_protocol_select="http_protocol"
1448 mmst_protocol_deps="network"
1449 rtmp_protocol_select="tcp_protocol"
1450 rtp_protocol_select="udp_protocol"
1451 tcp_protocol_deps="network"
1452 udp_protocol_deps="network"
1453
1454 # filters
1455 blackframe_filter_deps="gpl"
1456 cropdetect_filter_deps="gpl"
1457 frei0r_filter_deps="frei0r dlopen strtok_r"
1458 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1459 hqdn3d_filter_deps="gpl"
1460 scale_filter_deps="swscale"
1461 ocv_filter_deps="libopencv"
1462 yadif_filter_deps="gpl"
1463
1464 # libraries
1465 avdevice_deps="avcodec avformat"
1466 avformat_deps="avcodec"
1467
1468 # programs
1469 ffmpeg_deps="avcodec avformat swscale"
1470 ffmpeg_select="buffer_filter"
1471 ffplay_deps="avcodec avformat swscale sdl"
1472 ffplay_select="rdft"
1473 ffprobe_deps="avcodec avformat"
1474 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1475 ffserver_extralibs='$ldl'
1476
1477 doc_deps="texi2html"
1478
1479 # tests
1480
1481 test_deps(){
1482     suf1=$1
1483     suf2=$2
1484     shift 2
1485     for v; do
1486         dep=${v%=*}
1487         tests=${v#*=}
1488         for name in ${tests}; do
1489             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1490         done
1491     done
1492 }
1493
1494 set_ne_test_deps(){
1495     eval ${1}_be_test_deps="bigendian"
1496     eval ${1}_le_test_deps="!bigendian"
1497 }
1498
1499 test_deps _encoder _decoder                                             \
1500     adpcm_g726=g726                                                     \
1501     adpcm_ima_qt                                                        \
1502     adpcm_ima_wav                                                       \
1503     adpcm_ms                                                            \
1504     adpcm_swf                                                           \
1505     adpcm_yamaha=adpcm_yam                                              \
1506     alac                                                                \
1507     asv1                                                                \
1508     asv2                                                                \
1509     bmp                                                                 \
1510     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1511     dvvideo="dv dv50"                                                   \
1512     ffv1                                                                \
1513     flac                                                                \
1514     flashsv                                                             \
1515     flv                                                                 \
1516     gif                                                                 \
1517     h261                                                                \
1518     h263="h263 h263p"                                                   \
1519     huffyuv                                                             \
1520     jpegls                                                              \
1521     mjpeg="jpg mjpeg ljpeg"                                             \
1522     mp2                                                                 \
1523     mpeg1video="mpeg mpeg1b"                                            \
1524     mpeg2video="mpeg2 mpeg2thread"                                      \
1525     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1526     msmpeg4v3=msmpeg4                                                   \
1527     msmpeg4v2                                                           \
1528     pbm=pbmpipe                                                         \
1529     pcx                                                                 \
1530     pgm="pgm pgmpipe"                                                   \
1531     png                                                                 \
1532     ppm="ppm ppmpipe"                                                   \
1533     rawvideo="rgb yuv"                                                  \
1534     roq                                                                 \
1535     rv10                                                                \
1536     rv20                                                                \
1537     sgi                                                                 \
1538     snow="snow snowll"                                                  \
1539     svq1                                                                \
1540     targa=tga                                                           \
1541     tiff                                                                \
1542     wmav1                                                               \
1543     wmav2                                                               \
1544     wmv1                                                                \
1545     wmv2                                                                \
1546
1547 test_deps _muxer _demuxer                                               \
1548     aiff                                                                \
1549     pcm_alaw=alaw                                                       \
1550     asf                                                                 \
1551     au                                                                  \
1552     avi                                                                 \
1553     dv=dv_fmt                                                           \
1554     ffm                                                                 \
1555     flv=flv_fmt                                                         \
1556     gxf                                                                 \
1557     matroska=mkv                                                        \
1558     mmf                                                                 \
1559     mov                                                                 \
1560     pcm_mulaw=mulaw                                                     \
1561     mxf                                                                 \
1562     nut                                                                 \
1563     ogg                                                                 \
1564     rawvideo=pixfmt                                                     \
1565     rm                                                                  \
1566     swf                                                                 \
1567     mpegts=ts                                                           \
1568     voc                                                                 \
1569     wav                                                                 \
1570     yuv4mpegpipe=yuv4mpeg                                               \
1571
1572 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1573 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1574
1575 set_ne_test_deps pixdesc
1576 set_ne_test_deps pixfmts_copy
1577 set_ne_test_deps pixfmts_crop
1578 set_ne_test_deps pixfmts_hflip
1579 set_ne_test_deps pixfmts_null
1580 set_ne_test_deps pixfmts_pad
1581 set_ne_test_deps pixfmts_scale
1582 set_ne_test_deps pixfmts_vflip
1583
1584 # default parameters
1585
1586 logfile="config.log"
1587
1588 # installation paths
1589 prefix_default="/usr/local"
1590 bindir_default='${prefix}/bin'
1591 datadir_default='${prefix}/share/ffmpeg'
1592 incdir_default='${prefix}/include'
1593 libdir_default='${prefix}/lib'
1594 mandir_default='${prefix}/share/man'
1595 shlibdir_default="$libdir_default"
1596
1597 # toolchain
1598 ar_default="ar"
1599 cc_default="gcc"
1600 cc_version=\"unknown\"
1601 host_cc_default="gcc"
1602 ln_s="ln -sf"
1603 nm_default="nm"
1604 objformat="elf"
1605 pkg_config_default=pkg-config
1606 ranlib="ranlib"
1607 strip_default="strip"
1608 yasmexe="yasm"
1609 nogas=":"
1610
1611 nm_opts='-g'
1612
1613 # machine
1614 arch_default=$(uname -m)
1615 cpu="generic"
1616
1617 # OS
1618 target_os_default=$(tolower $(uname -s))
1619 host_os=$target_os_default
1620
1621 # configurable options
1622 enable avcodec
1623 enable avdevice
1624 enable avfilter
1625 enable avformat
1626 enable avutil
1627 enable asm
1628 enable debug
1629 enable doc
1630 enable fastdiv
1631 enable ffmpeg
1632 enable ffplay
1633 enable ffprobe
1634 enable ffserver
1635 enable mpegaudio_hp
1636 enable network
1637 enable optimizations
1638 enable protocols
1639 enable static
1640 enable stripping
1641 enable swscale
1642 enable swscale_alpha
1643
1644 # build settings
1645 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1646 FFSERVERLDFLAGS=-Wl,-E
1647 LIBPREF="lib"
1648 LIBSUF=".a"
1649 FULLNAME='$(NAME)$(BUILDSUF)'
1650 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1651 SLIBPREF="lib"
1652 SLIBSUF=".so"
1653 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1654 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1655 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1656 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1657
1658 CC_O='-o $@'
1659
1660 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1661 host_libs='-lm'
1662
1663 target_path='$(CURDIR)'
1664
1665 # since the object filename is not given with the -MM flag, the compiler
1666 # is only able to print the basename, and we must add the path ourselves
1667 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1668 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1669
1670 # find source path
1671 source_path="$(dirname "$0")"
1672 enable source_path_used
1673 if test -f configure; then
1674     source_path="$(pwd)"
1675     disable source_path_used
1676 else
1677     source_path="$(cd "$source_path"; pwd)"
1678     echo "$source_path" | grep -q '[[:blank:]]' &&
1679         die "Out of tree builds are impossible with whitespace in source path."
1680     test -e "$source_path/config.h" &&
1681         die "Out of tree builds are impossible with config.h in source dir."
1682 fi
1683
1684 for v in "$@"; do
1685     r=${v#*=}
1686     l=${v%"$r"}
1687     r=$(sh_quote "$r")
1688     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1689 done
1690
1691 find_things(){
1692     thing=$1
1693     pattern=$2
1694     file=$source_path/$3
1695     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1696 }
1697
1698 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1699 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1700 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1701 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1702 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1703 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1704 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1705 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1706 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1707 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1708 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1709
1710 find_tests(){
1711     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1712 }
1713
1714 ACODEC_TESTS=$(find_tests acodec)
1715 VCODEC_TESTS=$(find_tests vsynth1)
1716 LAVF_TESTS=$(find_tests lavf)
1717 LAVFI_TESTS=$(find_tests lavfi)
1718 SEEK_TESTS=$(find_tests seek seek_)
1719
1720 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1721
1722 for n in $COMPONENT_LIST; do
1723     v=$(toupper ${n%s})_LIST
1724     eval enable \$$v
1725     eval ${n}_if_any="\$$v"
1726 done
1727
1728 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1729
1730 die_unknown(){
1731     echo "Unknown option \"$1\"."
1732     echo "See $0 --help for available options."
1733     exit 1
1734 }
1735
1736 show_list() {
1737     suffix=_$1
1738     shift
1739     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1740     exit 0
1741 }
1742
1743 for opt do
1744     optval="${opt#*=}"
1745     case "$opt" in
1746     --extra-ldflags=*) add_ldflags $optval
1747     ;;
1748     --extra-libs=*) add_extralibs $optval
1749     ;;
1750     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1751     ;;
1752     --enable-debug=*) debuglevel="$optval"
1753     ;;
1754     --disable-everything)
1755     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1756     ;;
1757     --enable-*=*|--disable-*=*)
1758     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1759     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1760     eval list=\$$(toupper $thing)_LIST
1761     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1762     $action $(filter "$name" $list)
1763     ;;
1764     --enable-?*|--disable-?*)
1765     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1766     if is_in $option $COMPONENT_LIST; then
1767         test $action = disable && action=unset
1768         eval $action \$$(toupper ${option%s})_LIST
1769     elif is_in $option $CMDLINE_SELECT; then
1770         $action $option
1771     else
1772         die_unknown $opt
1773     fi
1774     ;;
1775     --list-*)
1776         NAME="${opt#--list-}"
1777         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1778         NAME=${NAME%s}
1779         eval show_list $NAME \$$(toupper $NAME)_LIST
1780     ;;
1781     --help|-h) show_help
1782     ;;
1783     *)
1784     optname="${opt%%=*}"
1785     optname="${optname#--}"
1786     optname=$(echo "$optname" | sed 's/-/_/g')
1787     if is_in $optname $CMDLINE_SET; then
1788         eval $optname='$optval'
1789     elif is_in $optname $CMDLINE_APPEND; then
1790         append $optname "$optval"
1791     else
1792          die_unknown $opt
1793     fi
1794     ;;
1795     esac
1796 done
1797
1798 disabled logging && logfile=/dev/null
1799
1800 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1801 set >> $logfile
1802
1803 test -n "$cross_prefix" && enable cross_compile
1804
1805 if enabled cross_compile; then
1806     test -n "$arch" && test -n "$target_os" ||
1807         die "Must specify target arch and OS when cross-compiling"
1808 fi
1809
1810 set_default arch target_os
1811
1812 ar_default="${cross_prefix}${ar_default}"
1813 cc_default="${cross_prefix}${cc_default}"
1814 nm_default="${cross_prefix}${nm_default}"
1815 pkg_config_default="${cross_prefix}${pkg_config_default}"
1816 ranlib="${cross_prefix}${ranlib}"
1817 strip_default="${cross_prefix}${strip_default}"
1818
1819 sysinclude_default="${sysroot}/usr/include"
1820
1821 set_default cc nm pkg_config strip sysinclude
1822 enabled cross_compile || host_cc_default=$cc
1823 set_default host_cc
1824
1825 exesuf() {
1826     case $1 in
1827         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1828     esac
1829 }
1830
1831 EXESUF=$(exesuf $target_os)
1832 HOSTEXESUF=$(exesuf $host_os)
1833
1834 # set temporary file name
1835 : ${TMPDIR:=$TEMPDIR}
1836 : ${TMPDIR:=$TMP}
1837 : ${TMPDIR:=/tmp}
1838
1839 if ! check_cmd mktemp -u XXXXXX; then
1840     # simple replacement for missing mktemp
1841     # NOT SAFE FOR GENERAL USE
1842     mktemp(){
1843         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1844     }
1845 fi
1846
1847 tmpfile(){
1848     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1849         (set -C; exec > $tmp) 2>/dev/null ||
1850         die "Unable to create temporary file in $TMPDIR."
1851     append TMPFILES $tmp
1852     eval $1=$tmp
1853 }
1854
1855 trap 'rm -f -- $TMPFILES' EXIT
1856
1857 tmpfile TMPC  .c
1858 tmpfile TMPE  $EXESUF
1859 tmpfile TMPH  .h
1860 tmpfile TMPO  .o
1861 tmpfile TMPS  .S
1862 tmpfile TMPV  .ver
1863 tmpfile TMPSH .sh
1864 tmpfile TMPASM .asm
1865
1866 unset -f mktemp
1867
1868 chmod +x $TMPE
1869
1870 # make sure we can execute files in $TMPDIR
1871 cat > $TMPSH 2>> $logfile <<EOF
1872 #! /bin/sh
1873 EOF
1874 chmod +x $TMPSH >> $logfile 2>&1
1875 if ! $TMPSH >> $logfile 2>&1; then
1876     cat <<EOF
1877 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1878 variable to another directory and make sure that it is not mounted noexec.
1879 EOF
1880     die "Sanity test failed."
1881 fi
1882
1883 filter_cflags=echo
1884 filter_cppflags=echo
1885 filter_asflags=echo
1886
1887 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1888     cc_type=llvm_gcc
1889     cc_version=__VERSION__
1890     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1891     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1892     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1893     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1894     speed_cflags='-O3'
1895     size_cflags='-Os'
1896 elif $cc -v 2>&1 | grep -qi ^gcc; then
1897     cc_type=gcc
1898     cc_version=__VERSION__
1899     gcc_version=$($cc --version | head -n1)
1900     gcc_basever=$($cc -dumpversion)
1901     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1902     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1903     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1904     if ! $cc -dumpversion | grep -q '^2\.'; then
1905         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1906         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1907     fi
1908     speed_cflags='-O3'
1909     size_cflags='-Os'
1910 elif $cc --version 2>/dev/null | grep -q Intel; then
1911     cc_type=icc
1912     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1913     cc_ident=$($cc --version | head -n1)
1914     icc_version=$($cc -dumpversion)
1915     CC_DEPFLAGS='-MMD'
1916     AS_DEPFLAGS='-MMD'
1917     speed_cflags='-O3'
1918     size_cflags='-Os'
1919     noopt_cflags='-O1'
1920 elif $cc -v 2>&1 | grep -q xlc; then
1921     cc_type=xlc
1922     cc_version="AV_STRINGIFY(__IBMC__)"
1923     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1924     speed_cflags='-O5'
1925     size_cflags='-O5 -qcompact'
1926 elif $cc -V 2>/dev/null | grep -q Compaq; then
1927     cc_type=ccc
1928     cc_version="AV_STRINGIFY(__DECC_VER)"
1929     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1930     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1931     debuglevel=3
1932     add_ldflags -Wl,-z,now # calls to libots crash without this
1933     speed_cflags='-fast'
1934     size_cflags='-O1'
1935 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1936     test -d "$sysroot" || die "No valid sysroot specified."
1937     cc_type=armcc
1938     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1939     cc_ident=$($cc --vsn | head -n1)
1940     armcc_conf="$PWD/armcc.conf"
1941     $cc --arm_linux_configure                 \
1942         --arm_linux_config_file="$armcc_conf" \
1943         --configure_sysroot="$sysroot"        \
1944         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1945         die "Error creating armcc configuration file."
1946     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1947     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1948     as_default="${cross_prefix}gcc"
1949     CC_DEPFLAGS='-MMD'
1950     AS_DEPFLAGS='-MMD'
1951     speed_cflags='-O3'
1952     size_cflags='-Os'
1953     filter_asflags="filter_out -W${armcc_opt}*"
1954 elif $cc -version 2>/dev/null | grep -q TMS470; then
1955     cc_type=tms470
1956     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1957     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1958     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1959     CC_O='-fr=$(@D)'
1960     as_default="${cross_prefix}gcc"
1961     ld_default="${cross_prefix}gcc"
1962     TMPO=$(basename $TMPC .c).o
1963     append TMPFILES $TMPO
1964     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1965     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1966     AS_DEPFLAGS='-MMD'
1967     speed_cflags='-O3 -mf=5'
1968     size_cflags='-O3 -mf=2'
1969     filter_cflags=tms470_flags
1970     tms470_flags(){
1971         for flag; do
1972             case $flag in
1973                 -march=*|-mcpu=*)
1974                     case "${flag#*=}" in
1975                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1976                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1977                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1978                         armv6*|arm11*)          echo -mv=6   ;;
1979                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1980                                                 echo -mv=5e  ;;
1981                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1982                     esac
1983                     ;;
1984                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1985                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1986                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1987                 -msoft-float)   echo --float_support=vfplib       ;;
1988                 -O[0-3]|-mf=*)  echo $flag                        ;;
1989                 -g)             echo -g -mn                       ;;
1990                 -pds=*)         echo $flag                        ;;
1991             esac
1992         done
1993     }
1994 elif $cc -v 2>&1 | grep -q clang; then
1995     cc_type=clang
1996     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1997         cc_version=__clang_version__ || cc_version=__VERSION__
1998     cc_ident=$($cc --version | head -n1)
1999     CC_DEPFLAGS='-MMD'
2000     AS_DEPFLAGS='-MMD'
2001     speed_cflags='-O3'
2002     size_cflags='-Os'
2003 elif $cc -V 2>&1 | grep -q Sun; then
2004     cc_type=suncc
2005     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2006     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2007     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2008     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2009     speed_cflags='-O5'
2010     size_cflags='-O5 -xspace'
2011     filter_cflags=suncc_flags
2012     suncc_flags(){
2013         for flag; do
2014             case $flag in
2015                 -march=*|-mcpu=*)
2016                     case "${flag#*=}" in
2017                         native)                   echo -xtarget=native       ;;
2018                         v9|niagara)               echo -xarch=sparc          ;;
2019                         ultrasparc)               echo -xarch=sparcvis       ;;
2020                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2021                         i586|pentium)             echo -xchip=pentium        ;;
2022                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2023                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2024                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2025                         pentium4*)          echo -xtarget=pentium4           ;;
2026                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2027                         *-sse3)             echo -xarch=sse3                 ;;
2028                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2029                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2030                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2031                         k8|opteron|athlon64|athlon-fx)
2032                                                   echo -xarch=sse2a          ;;
2033                         athlon*)                  echo -xarch=pentium_proa   ;;
2034                     esac
2035                     ;;
2036                 -std=c99)             echo -xc99              ;;
2037                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2038                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2039                 -W*,*)                echo $flag              ;;
2040                 -f*-*|-W*)                                    ;;
2041                 *)                    echo $flag              ;;
2042             esac
2043         done
2044     }
2045 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2046     cc_type=pathscale
2047     cc_version=__PATHSCALE__
2048     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2049     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2050     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2051     speed_cflags='-O2'
2052     size_cflags='-Os'
2053 elif $cc -v 2>&1 | grep -q Open64; then
2054     cc_type=open64
2055     cc_version=__OPEN64__
2056     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2057     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2058     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2059     speed_cflags='-O2'
2060     size_cflags='-Os'
2061 fi
2062
2063 test -n "$cc_type" && enable $cc_type ||
2064     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2065
2066 : ${as_default:=$cc}
2067 : ${dep_cc_default:=$cc}
2068 : ${ld_default:=$cc}
2069 set_default ar as dep_cc ld
2070
2071 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2072 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2073
2074 add_cflags $extra_cflags
2075 add_asflags $extra_cflags
2076
2077 if test -n "$sysroot"; then
2078     case "$cc_type" in
2079         gcc|llvm_gcc|clang)
2080             add_cppflags --sysroot="$sysroot"
2081             add_ldflags --sysroot="$sysroot"
2082         ;;
2083         tms470)
2084             add_cppflags -I"$sysinclude"
2085             add_ldflags  --sysroot="$sysroot"
2086         ;;
2087     esac
2088 fi
2089
2090 if test "$cpu" = host; then
2091     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2092
2093     case "$cc_type" in
2094         gcc|llvm_gcc)
2095             check_native(){
2096                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2097                 sed -n "/$1=/{
2098                             s/.*$1=\\([^ ]*\\).*/\\1/
2099                             p
2100                             q
2101                         }" $TMPE
2102             }
2103             cpu=$(check_native -march || check_native -mcpu)
2104         ;;
2105     esac
2106
2107     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2108 fi
2109
2110 # Deal with common $arch aliases
2111 case "$arch" in
2112     arm*)
2113         arch="arm"
2114     ;;
2115     mips|mipsel|IP*)
2116         arch="mips"
2117     ;;
2118     mips64*)
2119         arch="mips"
2120         subarch="mips64"
2121     ;;
2122     parisc|hppa)
2123         arch="parisc"
2124     ;;
2125     parisc64|hppa64)
2126         arch="parisc"
2127         subarch="parisc64"
2128     ;;
2129     "Power Macintosh"|ppc|powerpc)
2130         arch="ppc"
2131     ;;
2132     ppc64|powerpc64)
2133         arch="ppc"
2134         subarch="ppc64"
2135     ;;
2136     s390|s390x)
2137         arch="s390"
2138     ;;
2139     sh4|sh)
2140         arch="sh4"
2141     ;;
2142     sun4u|sparc64)
2143         arch="sparc"
2144         subarch="sparc64"
2145     ;;
2146     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2147         arch="x86"
2148     ;;
2149 esac
2150
2151 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2152 enable $arch
2153
2154 # Add processor-specific flags
2155 if test "$cpu" = generic; then
2156     : do nothing
2157 elif enabled ppc; then
2158
2159     case $(tolower $cpu) in
2160         601|ppc601|powerpc601)
2161             cpuflags="-mcpu=601"
2162             disable altivec
2163         ;;
2164         603*|ppc603*|powerpc603*)
2165             cpuflags="-mcpu=603"
2166             disable altivec
2167         ;;
2168         604*|ppc604*|powerpc604*)
2169             cpuflags="-mcpu=604"
2170             disable altivec
2171         ;;
2172         g3|75*|ppc75*|powerpc75*)
2173             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2174             disable altivec
2175         ;;
2176         g4|745*|ppc745*|powerpc745*)
2177             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2178         ;;
2179         74*|ppc74*|powerpc74*)
2180             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2181         ;;
2182         g5|970|ppc970|powerpc970|power4*)
2183             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2184         ;;
2185         cell)
2186             cpuflags="-mcpu=cell"
2187             enable ldbrx
2188         ;;
2189         e500v2)
2190             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2191             disable altivec
2192         ;;
2193         e500)
2194             cpuflags="-mcpu=8540 -mhard-float"
2195             disable altivec
2196         ;;
2197     esac
2198
2199 elif enabled x86; then
2200
2201     case $cpu in
2202         i[345]86|pentium)
2203             cpuflags="-march=$cpu"
2204             disable mmx
2205         ;;
2206         # targets that do NOT support conditional mov (cmov)
2207         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2208             cpuflags="-march=$cpu"
2209             disable cmov
2210         ;;
2211         # targets that do support conditional mov (cmov)
2212         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2213             cpuflags="-march=$cpu"
2214             enable cmov
2215             enable fast_cmov
2216         ;;
2217         # targets that do support conditional mov but on which it's slow
2218         pentium4|pentium4m|prescott|nocona)
2219             cpuflags="-march=$cpu"
2220             enable cmov
2221             disable fast_cmov
2222         ;;
2223     esac
2224
2225 elif enabled sparc; then
2226
2227     case $cpu in
2228         niagara)
2229             cpuflags="-mcpu=$cpu"
2230             disable vis
2231         ;;
2232         sparc64)
2233             cpuflags="-mcpu=v9"
2234         ;;
2235     esac
2236
2237 elif enabled arm; then
2238
2239     case $cpu in
2240         armv*)
2241             cpuflags="-march=$cpu"
2242             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2243         ;;
2244         *)
2245             cpuflags="-mcpu=$cpu"
2246             case $cpu in
2247                 cortex-a*)                               subarch=armv7a  ;;
2248                 cortex-r*)                               subarch=armv7r  ;;
2249                 cortex-m*)                               subarch=armv7m  ;;
2250                 arm11*)                                  subarch=armv6   ;;
2251                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2252                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2253             esac
2254         ;;
2255     esac
2256
2257 elif enabled alpha; then
2258
2259     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2260
2261 elif enabled bfin; then
2262
2263     cpuflags="-mcpu=$cpu"
2264
2265 elif enabled mips; then
2266
2267     cpuflags="-march=$cpu"
2268
2269 elif enabled avr32; then
2270
2271     case $cpu in
2272         ap7[02]0[0-2])
2273             subarch="avr32_ap"
2274             cpuflags="-mpart=$cpu"
2275         ;;
2276         ap)
2277             subarch="avr32_ap"
2278             cpuflags="-march=$cpu"
2279         ;;
2280         uc3[ab]*)
2281             subarch="avr32_uc"
2282             cpuflags="-mcpu=$cpu"
2283         ;;
2284         uc)
2285             subarch="avr32_uc"
2286             cpuflags="-march=$cpu"
2287         ;;
2288     esac
2289
2290 fi
2291
2292 add_cflags $cpuflags
2293 add_asflags $cpuflags
2294
2295 # compiler sanity check
2296 check_exec <<EOF
2297 int main(void){ return 0; }
2298 EOF
2299 if test "$?" != 0; then
2300     echo "$cc is unable to create an executable file."
2301     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2302         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2303         echo "Only do this if you know what cross compiling means."
2304     fi
2305     die "C compiler test failed."
2306 fi
2307
2308 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2309 check_cflags -std=c99
2310 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2311 #include <stdlib.h>
2312 EOF
2313 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2314 #include <stdlib.h>
2315 EOF
2316
2317 check_host_cflags -std=c99
2318
2319 case "$arch" in
2320     alpha|ia64|mips|parisc|sparc)
2321         spic=$shared
2322     ;;
2323     x86)
2324         subarch="x86_32"
2325         check_cc <<EOF && subarch="x86_64"
2326         int test[(int)sizeof(char*) - 7];
2327 EOF
2328         if test "$subarch" = "x86_64"; then
2329             spic=$shared
2330         fi
2331     ;;
2332 esac
2333
2334 enable $subarch
2335 enabled spic && enable pic
2336
2337 # OS specific
2338 case $target_os in
2339     haiku)
2340         prefix_default="/boot/common"
2341         network_extralibs="-lnetwork"
2342         host_libs=
2343         ;;
2344     sunos)
2345         FFSERVERLDFLAGS=""
2346         SHFLAGS='-shared -Wl,-h,$$(@F)'
2347         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2348         network_extralibs="-lsocket -lnsl"
2349         add_cppflags -D__EXTENSIONS__
2350         nm_opts='-P -g'
2351         ;;
2352     netbsd)
2353         disable symver
2354         oss_indev_extralibs="-lossaudio"
2355         oss_outdev_extralibs="-lossaudio"
2356         add_cppflags -D_XOPEN_SOURCE=600
2357         ;;
2358     openbsd)
2359         enable malloc_aligned
2360         # On OpenBSD 4.5. the compiler does not use PIC unless
2361         # explicitly using -fPIC. Libav builds fine without PIC,
2362         # however the generated executable will not do anything
2363         # (simply quits with exit-code 1, no crash, no output).
2364         # Thus explicitly enable PIC here.
2365         enable pic
2366         disable symver
2367         SHFLAGS='-shared'
2368         oss_indev_extralibs="-lossaudio"
2369         oss_outdev_extralibs="-lossaudio"
2370         ;;
2371     dragonfly)
2372         enable malloc_aligned
2373         disable symver
2374         ;;
2375     freebsd)
2376         enable malloc_aligned
2377         ;;
2378     bsd/os)
2379         add_extralibs -lpoll -lgnugetopt
2380         strip="strip -d"
2381         ;;
2382     darwin)
2383         enable malloc_aligned
2384         gas="gas-preprocessor.pl $cc"
2385         enabled ppc && add_asflags -force_cpusubtype_ALL
2386         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2387         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2388         strip="${strip} -x"
2389         add_ldflags -Wl,-dynamic,-search_paths_first
2390         SLIBSUF=".dylib"
2391         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2392         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2393         FFSERVERLDFLAGS=-Wl,-bind_at_load
2394         objformat="macho"
2395         enabled x86_64 && objformat="macho64"
2396         enabled_any pic shared ||
2397             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2398         ;;
2399     mingw32*)
2400         if test $target_os = "mingw32ce"; then
2401             disable network
2402         else
2403             target_os=mingw32
2404         fi
2405         LIBTARGET=i386
2406         if enabled x86_64; then
2407             enable malloc_aligned
2408             LIBTARGET="i386:x86-64"
2409         elif enabled arm; then
2410             LIBTARGET=arm-wince
2411         fi
2412         shlibdir_default="$bindir_default"
2413         SLIBPREF=""
2414         SLIBSUF=".dll"
2415         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2416         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2417         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2418         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2419             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2420             install -d "$(LIBDIR)"; \
2421             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2422         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2423         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2424         objformat="win32"
2425         dlltool="${cross_prefix}dlltool"
2426         enable dos_paths
2427         check_cflags -fno-common
2428         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2429                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2430                 die "ERROR: MinGW runtime version must be >= 3.15."
2431         ;;
2432     cygwin*)
2433         target_os=cygwin
2434         shlibdir_default="$bindir_default"
2435         SLIBPREF="cyg"
2436         SLIBSUF=".dll"
2437         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2438         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2439         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2440         objformat="win32"
2441         enable dos_paths
2442         check_cflags -fno-common
2443         ;;
2444     *-dos|freedos|opendos)
2445         network_extralibs="-lsocket"
2446         objformat="coff"
2447         enable dos_paths
2448         ;;
2449     linux)
2450         enable dv1394
2451         ;;
2452     irix*)
2453         target_os=irix
2454         ranlib="echo ignoring ranlib"
2455         ;;
2456     os/2*)
2457         strip="lxlite -CS"
2458         ln_s="cp -f"
2459         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2460         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2461         FFSERVERLDFLAGS=""
2462         LIBSUF="_s.a"
2463         SLIBPREF=""
2464         SLIBSUF=".dll"
2465         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2466         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2467         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2468           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2469           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2470           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2471           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2472           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2473         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2474           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2475         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2476         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2477         enable dos_paths
2478         ;;
2479     gnu/kfreebsd)
2480         ;;
2481     gnu)
2482         ;;
2483     qnx)
2484         add_cppflags -D_QNX_SOURCE
2485         network_extralibs="-lsocket"
2486         ;;
2487     none)
2488         ;;
2489     *)
2490         die "Unknown OS '$target_os'."
2491         ;;
2492 esac
2493
2494 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2495
2496 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2497
2498 set_default $PATHS_LIST
2499
2500 # we need to build at least one lib type
2501 if ! enabled_any static shared; then
2502     cat <<EOF
2503 At least one library type must be built.
2504 Specify --enable-static to build the static libraries or --enable-shared to
2505 build the shared libraries as well. To only build the shared libraries specify
2506 --disable-static in addition to --enable-shared.
2507 EOF
2508     exit 1;
2509 fi
2510
2511 disabled static && LIBNAME=""
2512
2513 die_license_disabled() {
2514     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2515 }
2516
2517 die_license_disabled gpl libx264
2518 die_license_disabled gpl libxavs
2519 die_license_disabled gpl libxvid
2520 die_license_disabled gpl postproc
2521 die_license_disabled gpl x11grab
2522
2523 die_license_disabled nonfree libfaac
2524
2525 die_license_disabled version3 libopencore_amrnb
2526 die_license_disabled version3 libopencore_amrwb
2527
2528 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2529
2530 disabled optimizations || check_cflags -fomit-frame-pointer
2531
2532 enable_pic() {
2533     enable pic
2534     add_cppflags -DPIC
2535     add_cflags   -fPIC
2536     add_asflags  -fPIC
2537 }
2538
2539 enabled pic && enable_pic
2540
2541 check_cc <<EOF || die "Symbol mangling check failed."
2542 int ff_extern;
2543 EOF
2544 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2545 extern_prefix=${sym%%ff_extern*}
2546
2547 check_cc <<EOF && enable inline_asm
2548 void foo(void) { __asm__ volatile ("" ::); }
2549 EOF
2550
2551 _restrict=
2552 for restrict_keyword in restrict __restrict__ __restrict; do
2553     check_cc <<EOF && _restrict=$restrict_keyword && break
2554 void foo(char * $restrict_keyword p);
2555 EOF
2556 done
2557
2558 check_cc <<EOF && enable attribute_packed
2559 struct { int x; } __attribute__((packed)) x;
2560 EOF
2561
2562 check_cc <<EOF && enable attribute_may_alias
2563 union { int x; } __attribute__((may_alias)) x;
2564 EOF
2565
2566 check_cc <<EOF || die "endian test failed"
2567 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2568 EOF
2569 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2570
2571 if enabled alpha; then
2572
2573     check_cflags -mieee
2574
2575 elif enabled arm; then
2576
2577     check_cflags -marm
2578     nogas=die
2579
2580     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2581         enable vfp_args
2582     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2583         case "${cross_prefix:-$cc}" in
2584             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2585             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2586 __asm__ (".eabi_attribute 28, 1");
2587 int main(void) { return 0; }
2588 EOF
2589         esac
2590         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2591     fi
2592
2593     # We have to check if pld is a nop and disable it.
2594     check_asm pld '"pld [r0]"'
2595
2596     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2597     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2598     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2599     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2600     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2601     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2602
2603     enabled_all armv6t2 shared !pic && enable_pic
2604
2605 elif enabled mips; then
2606
2607     check_asm loongson '"dmult.g $1, $2, $3"'
2608     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2609
2610 elif enabled ppc; then
2611
2612     enable local_aligned_8 local_aligned_16
2613
2614     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2615     check_asm ibm_asm   '"add 0, 0, 0"'
2616     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2617     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2618
2619     # AltiVec flags: The FSF version of GCC differs from the Apple version
2620     if enabled altivec; then
2621         nogas=warn
2622         check_cflags -maltivec -mabi=altivec &&
2623         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2624         check_cflags -faltivec
2625
2626         # check if our compiler supports Motorola AltiVec C API
2627         check_cc <<EOF || disable altivec
2628 $inc_altivec_h
2629 int main(void) {
2630     vector signed int v1, v2, v3;
2631     v1 = vec_add(v2,v3);
2632     return 0;
2633 }
2634 EOF
2635
2636         # check if our compiler supports braces for vector declarations
2637         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2638 $inc_altivec_h
2639 int main (void) { (vector int) {1}; return 0; }
2640 EOF
2641     fi
2642
2643 elif enabled sparc; then
2644
2645     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2646         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2647
2648 elif enabled x86; then
2649
2650     enable local_aligned_8 local_aligned_16
2651
2652     # check whether EBP is available on x86
2653     # As 'i' is stored on the stack, this program will crash
2654     # if the base pointer is used to access it because the
2655     # base pointer is cleared in the inline assembly code.
2656     check_exec_crash <<EOF && enable ebp_available
2657     volatile int i=0;
2658     __asm__ volatile (
2659         "xorl %%ebp, %%ebp"
2660     ::: "%ebp");
2661     return i;
2662 EOF
2663
2664     # check whether EBX is available on x86
2665     check_asm ebx_available '""::"b"(0)' &&
2666         check_asm ebx_available '"":::"%ebx"'
2667
2668     # check whether xmm clobbers are supported
2669     check_asm xmm_clobbers '"":::"%xmm0"'
2670
2671     # check whether more than 10 operands are supported
2672     check_cc <<EOF && enable ten_operands
2673 int main(void) {
2674     int x=0;
2675     __asm__ volatile(
2676         ""
2677         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2678     );
2679     return 0;
2680 }
2681 EOF
2682
2683     # check whether binutils is new enough to compile SSSE3/MMX2
2684     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2685     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2686
2687     check_asm bswap '"bswap %%eax" ::: "%eax"'
2688
2689     if ! disabled_any asm mmx yasm; then
2690         if check_cmd $yasmexe --version; then
2691             enabled x86_64 && yasm_extra="-m amd64"
2692             yasm_debug="-g dwarf2"
2693         elif check_cmd nasm -v; then
2694             yasmexe=nasm
2695             yasm_debug="-g -F dwarf"
2696             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2697         fi
2698
2699         YASMFLAGS="-f $objformat $yasm_extra"
2700         enabled pic               && append YASMFLAGS "-DPIC"
2701         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2702         case "$objformat" in
2703             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2704         esac
2705
2706         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2707             die "yasm not found, use --disable-yasm for a crippled build"
2708         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2709     fi
2710
2711     case "$cpu" in
2712         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2713             disable fast_clz
2714         ;;
2715     esac
2716
2717 fi
2718
2719 if enabled asm; then
2720     as=${gas:=$as}
2721     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2722         $nogas "GNU assembler not found, install gas-preprocessor"
2723 fi
2724
2725 check_ldflags -Wl,--as-needed
2726
2727 if check_func dlopen; then
2728     ldl=
2729 elif check_func dlopen -ldl; then
2730     ldl=-ldl
2731 fi
2732
2733 if enabled network; then
2734     check_type "sys/types.h sys/socket.h" socklen_t
2735     check_type netdb.h "struct addrinfo"
2736     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2737     check_type netinet/in.h "struct sockaddr_in6"
2738     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2739     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2740     # Prefer arpa/inet.h over winsock2
2741     if check_header arpa/inet.h ; then
2742         check_func closesocket
2743     elif check_header winsock2.h ; then
2744         check_func_headers winsock2.h closesocket -lws2 && \
2745             network_extralibs="-lws2" || \
2746         { check_func_headers winsock2.h closesocket -lws2_32 && \
2747             network_extralibs="-lws2_32"; }
2748         check_type ws2tcpip.h socklen_t
2749         check_type ws2tcpip.h "struct addrinfo"
2750         check_type ws2tcpip.h "struct ipv6_mreq"
2751         check_type ws2tcpip.h "struct sockaddr_in6"
2752         check_type ws2tcpip.h "struct sockaddr_storage"
2753         check_struct winsock2.h "struct sockaddr" sa_len
2754     else
2755         disable network
2756     fi
2757 fi
2758
2759 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2760 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2761
2762 check_func  fcntl
2763 check_func  fork
2764 check_func  getaddrinfo $network_extralibs
2765 check_func  gethrtime
2766 check_func  getrusage
2767 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2768 check_func  inet_aton $network_extralibs
2769 check_func  isatty
2770 check_func  ${malloc_prefix}memalign            && enable memalign
2771 check_func  mkstemp
2772 check_func  mmap
2773 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2774 check_func  setrlimit
2775 check_func  strerror_r
2776 check_func  strtok_r
2777 check_func_headers conio.h kbhit
2778 check_func_headers io.h setmode
2779 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2780 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2781 check_func_headers windows.h GetProcessTimes
2782 check_func_headers windows.h MapViewOfFile
2783 check_func_headers windows.h VirtualAlloc
2784
2785 check_header dlfcn.h
2786 check_header dxva2api.h
2787 check_header malloc.h
2788 check_header poll.h
2789 check_header sys/mman.h
2790 check_header sys/resource.h
2791 check_header sys/select.h
2792 check_header vdpau/vdpau.h
2793 check_header vdpau/vdpau_x11.h
2794 check_header X11/extensions/XvMClib.h
2795
2796 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2797
2798 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2799      enabled_any $need_memalign ; then
2800     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2801 fi
2802
2803 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2804 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2805
2806 # check for some common methods of building with pthread support
2807 # do this before the optional library checks as some of them require pthreads
2808 if ! disabled pthreads && ! enabled w32threads; then
2809     enable pthreads
2810     if check_func pthread_create; then
2811         :
2812     elif check_func pthread_create -pthread; then
2813         add_cflags -pthread
2814         add_extralibs -pthread
2815     elif check_func pthread_create -pthreads; then
2816         add_cflags -pthreads
2817         add_extralibs -pthreads
2818     elif check_func pthread_create -lpthreadGC2; then
2819         add_extralibs -lpthreadGC2
2820     elif ! check_lib pthread.h pthread_create -lpthread; then
2821         disable pthreads
2822     fi
2823 fi
2824
2825 for thread in $THREADS_LIST; do
2826     if enabled $thread; then
2827         test -n "$thread_type" &&
2828             die "ERROR: Only one thread type must be selected." ||
2829             thread_type="$thread"
2830     fi
2831 done
2832
2833 check_lib math.h sin -lm
2834 disabled vaapi || check_lib va/va.h vaInitialize -lva
2835
2836 check_mathfunc exp2
2837 check_mathfunc exp2f
2838 check_mathfunc llrint
2839 check_mathfunc llrintf
2840 check_mathfunc log2
2841 check_mathfunc log2f
2842 check_mathfunc lrint
2843 check_mathfunc lrintf
2844 check_mathfunc round
2845 check_mathfunc roundf
2846 check_mathfunc truncf
2847
2848 # these are off by default, so fail if requested and not available
2849 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2850 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2851 enabled libdirac   && require_pkg_config dirac                          \
2852     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2853     "dirac_decoder_init dirac_encoder_init"
2854 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2855 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2856 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2857 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2858 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2859 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2860 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2861 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2862 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2863 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2864 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2865 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2866 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2867 enabled libvpx     && {
2868     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2869                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2870     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2871                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2872 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2873                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2874                         die "ERROR: libx264 version must be >= 0.99."; }
2875 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2876 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2877 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2878
2879 # libdc1394 check
2880 if enabled libdc1394; then
2881     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2882         enable libdc1394_2; } ||
2883     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2884         enable libdc1394_1; } ||
2885     die "ERROR: No version of libdc1394 found "
2886 fi
2887
2888 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2889     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2890     enable sdl &&
2891     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2892 fi
2893
2894 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2895
2896 check_header linux/videodev.h
2897 check_header linux/videodev2.h
2898 check_header sys/videoio.h
2899
2900 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2901 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2902 # w32api 3.12 had it defined wrong
2903 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2904
2905 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2906 { check_header dev/bktr/ioctl_meteor.h &&
2907   check_header dev/bktr/ioctl_bt848.h; } ||
2908 { check_header machine/ioctl_meteor.h &&
2909   check_header machine/ioctl_bt848.h; } ||
2910 { check_header dev/video/meteor/ioctl_meteor.h &&
2911   check_header dev/video/bktr/ioctl_bt848.h; } ||
2912 check_header dev/ic/bt8xx.h
2913
2914 check_header sys/soundcard.h
2915 check_header soundcard.h
2916
2917 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2918
2919 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2920
2921 enabled x11grab                         &&
2922 check_header X11/Xlib.h                 &&
2923 check_header X11/extensions/XShm.h      &&
2924 check_header X11/extensions/Xfixes.h    &&
2925 check_func XOpenDisplay -lX11           &&
2926 check_func XShmCreateImage -lX11 -lXext &&
2927 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2928
2929 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2930 check_cpp_condition \
2931     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2932     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2933       disable vdpau; }
2934 fi
2935
2936 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2937
2938 # add some useful compiler flags if supported
2939 check_cflags -Wdeclaration-after-statement
2940 check_cflags -Wall
2941 check_cflags -Wno-parentheses
2942 check_cflags -Wno-switch
2943 check_cflags -Wdisabled-optimization
2944 check_cflags -Wpointer-arith
2945 check_cflags -Wredundant-decls
2946 check_cflags -Wno-pointer-sign
2947 check_cflags -Wcast-qual
2948 check_cflags -Wwrite-strings
2949 check_cflags -Wtype-limits
2950 check_cflags -Wundef
2951 check_cflags -Wmissing-prototypes
2952 enabled extra_warnings && check_cflags -Winline
2953
2954 # add some linker flags
2955 check_ldflags -Wl,--warn-common
2956 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2957 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2958
2959 echo "X{};" > $TMPV
2960 if test_ldflags -Wl,--version-script,$TMPV; then
2961     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2962     check_cc <<EOF && enable symver_asm_label
2963 void ff_foo(void) __asm__ ("av_foo@VERSION");
2964 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2965 EOF
2966     check_cc <<EOF && enable symver_gnu_asm
2967 __asm__(".symver ff_foo,av_foo@VERSION");
2968 void ff_foo(void) {}
2969 EOF
2970 fi
2971
2972 if enabled small; then
2973     add_cflags $size_cflags
2974     optimizations="small"
2975 elif enabled optimizations; then
2976     add_cflags $speed_cflags
2977 else
2978     add_cflags $noopt_cflags
2979 fi
2980 check_cflags -fno-math-errno
2981 check_cflags -fno-signed-zeros
2982
2983 if enabled icc; then
2984     # Just warnings, no remarks
2985     check_cflags -w1
2986     # -wd: Disable following warnings
2987     # 144, 167, 556: -Wno-pointer-sign
2988     # 1292: attribute "foo" ignored
2989     # 10006: ignoring unknown option -fno-signed-zeros
2990     # 10148: ignoring unknown option -Wno-parentheses
2991     # 10156: ignoring option '-W'; no argument required
2992     check_cflags -wd144,167,556,1292,10006,10148,10156
2993     # 11030: Warning unknown option --as-needed
2994     # 10156: ignoring option '-export'; no argument required
2995     check_ldflags -wd10156,11030
2996     # Allow to compile with optimizations
2997     check_ldflags -march=$cpu
2998     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2999     enable ebp_available
3000     if enabled x86_32; then
3001         test ${icc_version%%.*} -ge 11 && \
3002             check_cflags -falign-stack=maintain-16-byte || \
3003             disable aligned_stack
3004     fi
3005 elif enabled ccc; then
3006     # disable some annoying warnings
3007     add_cflags -msg_disable cvtu32to64
3008     add_cflags -msg_disable embedcomment
3009     add_cflags -msg_disable needconstext
3010     add_cflags -msg_disable nomainieee
3011     add_cflags -msg_disable ptrmismatch1
3012     add_cflags -msg_disable unreachcode
3013 elif enabled gcc; then
3014     check_cflags -fno-tree-vectorize
3015     check_cflags -Werror=implicit-function-declaration
3016     check_cflags -Werror=missing-prototypes
3017 elif enabled llvm_gcc; then
3018     check_cflags -mllvm -stack-alignment=16
3019 elif enabled clang; then
3020     check_cflags -mllvm -stack-alignment=16
3021     check_cflags -Qunused-arguments
3022 elif enabled armcc; then
3023     # 2523: use of inline assembler is deprecated
3024     add_cflags -W${armcc_opt},--diag_suppress=2523
3025     add_cflags -W${armcc_opt},--diag_suppress=1207
3026     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3027     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3028 elif enabled tms470; then
3029     add_cflags -pds=824 -pds=837
3030 elif enabled pathscale; then
3031     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3032 fi
3033
3034 enabled_any $THREADS_LIST      && enable threads
3035
3036 check_deps $CONFIG_LIST       \
3037            $CONFIG_EXTRA      \
3038            $HAVE_LIST         \
3039            $DECODER_LIST      \
3040            $ENCODER_LIST      \
3041            $HWACCEL_LIST      \
3042            $PARSER_LIST       \
3043            $BSF_LIST          \
3044            $DEMUXER_LIST      \
3045            $MUXER_LIST        \
3046            $FILTER_LIST       \
3047            $INDEV_LIST        \
3048            $OUTDEV_LIST       \
3049            $PROTOCOL_LIST     \
3050            $ACODEC_TESTS      \
3051            $VCODEC_TESTS      \
3052            $LAVF_TESTS        \
3053            $LAVFI_TESTS       \
3054            $SEEK_TESTS        \
3055
3056 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3057
3058 echo "install prefix            $prefix"
3059 echo "source path               $source_path"
3060 echo "C compiler                $cc"
3061 echo "ARCH                      $arch ($cpu)"
3062 if test "$build_suffix" != ""; then
3063     echo "build suffix              $build_suffix"
3064 fi
3065 if test "$extra_version" != ""; then
3066     echo "version string suffix     $extra_version"
3067 fi
3068 echo "big-endian                ${bigendian-no}"
3069 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3070 if enabled x86; then
3071     echo "yasm                      ${yasm-no}"
3072     echo "MMX enabled               ${mmx-no}"
3073     echo "MMX2 enabled              ${mmx2-no}"
3074     echo "3DNow! enabled            ${amd3dnow-no}"
3075     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3076     echo "SSE enabled               ${sse-no}"
3077     echo "SSSE3 enabled             ${ssse3-no}"
3078     echo "CMOV enabled              ${cmov-no}"
3079     echo "CMOV is fast              ${fast_cmov-no}"
3080     echo "EBX available             ${ebx_available-no}"
3081     echo "EBP available             ${ebp_available-no}"
3082     echo "10 operands supported     ${ten_operands-no}"
3083 fi
3084 if enabled arm; then
3085     echo "ARMv5TE enabled           ${armv5te-no}"
3086     echo "ARMv6 enabled             ${armv6-no}"
3087     echo "ARMv6T2 enabled           ${armv6t2-no}"
3088     echo "ARM VFP enabled           ${armvfp-no}"
3089     echo "IWMMXT enabled            ${iwmmxt-no}"
3090     echo "NEON enabled              ${neon-no}"
3091 fi
3092 if enabled mips; then
3093     echo "MMI enabled               ${mmi-no}"
3094 fi
3095 if enabled ppc; then
3096     echo "AltiVec enabled           ${altivec-no}"
3097     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3098     echo "dcbzl available           ${dcbzl-no}"
3099 fi
3100 if enabled sparc; then
3101     echo "VIS enabled               ${vis-no}"
3102 fi
3103 echo "debug symbols             ${debug-no}"
3104 echo "strip symbols             ${stripping-no}"
3105 echo "optimizations             ${optimizations-no}"
3106 echo "static                    ${static-no}"
3107 echo "shared                    ${shared-no}"
3108 echo "postprocessing support    ${postproc-no}"
3109 echo "new filter support        ${avfilter-no}"
3110 echo "network support           ${network-no}"
3111 echo "threading support         ${thread_type-no}"
3112 echo "SDL support               ${sdl-no}"
3113 echo "Sun medialib support      ${mlib-no}"
3114 echo "AVISynth enabled          ${avisynth-no}"
3115 echo "frei0r enabled            ${frei0r-no}"
3116 echo "libdc1394 support         ${libdc1394-no}"
3117 echo "libdirac enabled          ${libdirac-no}"
3118 echo "libfaac enabled           ${libfaac-no}"
3119 echo "libgsm enabled            ${libgsm-no}"
3120 echo "libmp3lame enabled        ${libmp3lame-no}"
3121 echo "libnut enabled            ${libnut-no}"
3122 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3123 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3124 echo "libopencv support         ${libopencv-no}"
3125 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3126 echo "librtmp enabled           ${librtmp-no}"
3127 echo "libschroedinger enabled   ${libschroedinger-no}"
3128 echo "libspeex enabled          ${libspeex-no}"
3129 echo "libtheora enabled         ${libtheora-no}"
3130 echo "libvorbis enabled         ${libvorbis-no}"
3131 echo "libvpx enabled            ${libvpx-no}"
3132 echo "libx264 enabled           ${libx264-no}"
3133 echo "libxavs enabled           ${libxavs-no}"
3134 echo "libxvid enabled           ${libxvid-no}"
3135 echo "zlib enabled              ${zlib-no}"
3136 echo "bzlib enabled             ${bzlib-no}"
3137 echo
3138
3139 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3140     echo "Enabled ${type}s:"
3141     eval list=\$$(toupper $type)_LIST
3142     print_enabled '_*' $list | sort | pr -r -3 -t
3143     echo
3144 done
3145
3146 license="LGPL version 2.1 or later"
3147 if enabled nonfree; then
3148     license="nonfree and unredistributable"
3149 elif enabled gplv3; then
3150     license="GPL version 3 or later"
3151 elif enabled lgplv3; then
3152     license="LGPL version 3 or later"
3153 elif enabled gpl; then
3154     license="GPL version 2 or later"
3155 fi
3156
3157 echo "License: $license"
3158
3159 echo "Creating config.mak and config.h..."
3160
3161 # build tree in object directory if source path is different from current one
3162 if enabled source_path_used; then
3163     DIRS="
3164         doc
3165         libavcodec
3166         libavcodec/$arch
3167         libavdevice
3168         libavfilter
3169         libavfilter/$arch
3170         libavformat
3171         libavutil
3172         libavutil/$arch
3173         libpostproc
3174         libswscale
3175         libswscale/$arch
3176         tests
3177         tools
3178     "
3179     FILES="
3180         Makefile
3181         common.mak
3182         subdir.mak
3183         doc/texi2pod.pl
3184         libavcodec/Makefile
3185         libavcodec/${arch}/Makefile
3186         libavdevice/Makefile
3187         libavfilter/Makefile
3188         libavfilter/${arch}/Makefile
3189         libavformat/Makefile
3190         libavutil/Makefile
3191         libpostproc/Makefile
3192         libswscale/Makefile
3193     "
3194     map 'mkdir -p $v' $DIRS;
3195     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3196 fi
3197
3198 enabled stripping || strip="echo skipping strip"
3199
3200 config_files="$TMPH config.mak"
3201
3202 cat > config.mak <<EOF
3203 # Automatically generated by configure - do not modify!
3204 ifndef LIBAV_CONFIG_MAK
3205 LIBAV_CONFIG_MAK=1
3206 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3207 prefix=$prefix
3208 LIBDIR=\$(DESTDIR)$libdir
3209 SHLIBDIR=\$(DESTDIR)$shlibdir
3210 INCDIR=\$(DESTDIR)$incdir
3211 BINDIR=\$(DESTDIR)$bindir
3212 DATADIR=\$(DESTDIR)$datadir
3213 MANDIR=\$(DESTDIR)$mandir
3214 SRC_PATH="$source_path"
3215 SRC_PATH_BARE=$source_path
3216 BUILD_ROOT="$PWD"
3217 CC_IDENT=$cc_ident
3218 ARCH=$arch
3219 CC=$cc
3220 AS=$as
3221 LD=$ld
3222 DEPCC=$dep_cc
3223 YASM=$yasmexe
3224 YASMDEP=$yasmexe
3225 AR=$ar
3226 RANLIB=$ranlib
3227 CP=cp -p
3228 LN_S=$ln_s
3229 STRIP=$strip
3230 CPPFLAGS=$CPPFLAGS
3231 CFLAGS=$CFLAGS
3232 ASFLAGS=$ASFLAGS
3233 CC_O=$CC_O
3234 DLLTOOL=$dlltool
3235 LDFLAGS=$LDFLAGS
3236 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3237 SHFLAGS=$SHFLAGS
3238 YASMFLAGS=$YASMFLAGS
3239 BUILDSUF=$build_suffix
3240 FULLNAME=$FULLNAME
3241 LIBPREF=$LIBPREF
3242 LIBSUF=$LIBSUF
3243 LIBNAME=$LIBNAME
3244 SLIBPREF=$SLIBPREF
3245 SLIBSUF=$SLIBSUF
3246 EXESUF=$EXESUF
3247 EXTRA_VERSION=$extra_version
3248 DEPFLAGS=$DEPFLAGS
3249 CCDEP=$CCDEP
3250 ASDEP=$ASDEP
3251 CC_DEPFLAGS=$CC_DEPFLAGS
3252 AS_DEPFLAGS=$AS_DEPFLAGS
3253 HOSTCC=$host_cc
3254 HOSTCFLAGS=$host_cflags
3255 HOSTEXESUF=$HOSTEXESUF
3256 HOSTLDFLAGS=$host_ldflags
3257 HOSTLIBS=$host_libs
3258 TARGET_EXEC=$target_exec
3259 TARGET_PATH=$target_path
3260 SDL_LIBS=$sdl_libs
3261 SDL_CFLAGS=$sdl_cflags
3262 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3263 EXTRALIBS=$extralibs
3264 INSTALL=install
3265 LIBTARGET=${LIBTARGET}
3266 SLIBNAME=${SLIBNAME}
3267 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3268 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3269 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3270 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3271 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3272 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3273 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3274 EOF
3275
3276 get_version(){
3277     name=$1
3278     file=$source_path/$2
3279     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3280     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3281     lcname=$(tolower $name)
3282     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3283     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3284 }
3285
3286 get_version LIBSWSCALE  libswscale/swscale.h
3287 get_version LIBPOSTPROC libpostproc/postprocess.h
3288 get_version LIBAVCODEC  libavcodec/version.h
3289 get_version LIBAVDEVICE libavdevice/avdevice.h
3290 get_version LIBAVFORMAT libavformat/version.h
3291 get_version LIBAVUTIL   libavutil/avutil.h
3292 get_version LIBAVFILTER libavfilter/avfilter.h
3293
3294 cat > $TMPH <<EOF
3295 /* Automatically generated by configure - do not modify! */
3296 #ifndef LIBAV_CONFIG_H
3297 #define LIBAV_CONFIG_H
3298 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3299 #define LIBAV_LICENSE "$(c_escape $license)"
3300 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3301 #define CC_TYPE "$cc_type"
3302 #define CC_VERSION $cc_version
3303 #define restrict $_restrict
3304 #define EXTERN_PREFIX "${extern_prefix}"
3305 #define EXTERN_ASM ${extern_prefix}
3306 #define SLIBSUF "$SLIBSUF"
3307 EOF
3308
3309 test -n "$malloc_prefix" &&
3310     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3311
3312 if enabled small || disabled optimizations; then
3313     echo "#undef  av_always_inline"  >> $TMPH
3314     if enabled small; then
3315         echo "#define av_always_inline inline"  >> $TMPH
3316     else
3317         echo "#define av_always_inline av_unused"  >> $TMPH
3318     fi
3319 fi
3320
3321 if enabled yasm; then
3322     append config_files $TMPASM
3323     printf '' >$TMPASM
3324 fi
3325
3326 print_config ARCH_   "$config_files" $ARCH_LIST
3327 print_config HAVE_   "$config_files" $HAVE_LIST
3328 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3329                                      $CONFIG_EXTRA      \
3330                                      $DECODER_LIST      \
3331                                      $ENCODER_LIST      \
3332                                      $HWACCEL_LIST      \
3333                                      $PARSER_LIST       \
3334                                      $BSF_LIST          \
3335                                      $DEMUXER_LIST      \
3336                                      $MUXER_LIST        \
3337                                      $FILTER_LIST       \
3338                                      $PROTOCOL_LIST     \
3339                                      $INDEV_LIST        \
3340                                      $OUTDEV_LIST       \
3341
3342 cat >>config.mak <<EOF
3343 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3344 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3345 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3346 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3347 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3348 EOF
3349
3350 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3351 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3352
3353 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3354 cp_if_changed $TMPH config.h
3355 touch .config
3356
3357 enabled yasm && cp_if_changed $TMPASM config.asm
3358
3359 cat > $TMPH <<EOF
3360 /* Generated by ffconf */
3361 #ifndef AVUTIL_AVCONFIG_H
3362 #define AVUTIL_AVCONFIG_H
3363 EOF
3364
3365 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3366
3367 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3368
3369 cp_if_changed $TMPH libavutil/avconfig.h
3370
3371 test -n "$WARNINGS" && printf "\n$WARNINGS"
3372
3373 # build pkg-config files
3374
3375 pkgconfig_generate(){
3376 name=$1
3377 shortname=${name#lib}${build_suffix}
3378 comment=$2
3379 version=$3
3380 libs=$4
3381 requires=$5
3382 enabled ${name#lib} || return 0
3383 cat <<EOF > $name/$name.pc
3384 prefix=$prefix
3385 exec_prefix=\${prefix}
3386 libdir=$libdir
3387 includedir=$incdir
3388
3389 Name: $name
3390 Description: $comment
3391 Version: $version
3392 Requires: $(enabled shared || echo $requires)
3393 Requires.private: $(enabled shared && echo $requires)
3394 Conflicts:
3395 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3396 Libs.private: $(enabled shared && echo $libs)
3397 Cflags: -I\${includedir}
3398 EOF
3399 cat <<EOF > $name/$name-uninstalled.pc
3400 prefix=
3401 exec_prefix=
3402 libdir=\${pcfiledir}
3403 includedir=${source_path}
3404
3405 Name: $name
3406 Description: $comment
3407 Version: $version
3408 Requires: $requires
3409 Conflicts:
3410 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3411 Cflags: -I\${includedir}
3412 EOF
3413 }
3414
3415 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
3416 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3417 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3418 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3419 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3420 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION"
3421 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"