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 $libs $extralibs
 645 }
 646
 647 check_cppflags(){
 648     log check_cppflags "$@"
 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     sndio_h
1098     socklen_t
1099     soundcard_h
1100     poll_h
1101     setrlimit
1102     strerror_r
1103     strtok_r
1104     struct_addrinfo
1105     struct_ipv6_mreq
1106     struct_sockaddr_in6
1107     struct_sockaddr_sa_len
1108     struct_sockaddr_storage
1109     symver
1110     symver_gnu_asm
1111     symver_asm_label
1112     sys_mman_h
1113     sys_resource_h
1114     sys_select_h
1115     sys_soundcard_h
1116     sys_videoio_h
1117     ten_operands
1118     threads
1119     truncf
1120     vfp_args
1121     VirtualAlloc
1122     winsock2_h
1123     xform_asm
1124     xmm_clobbers
1125     yasm
1126 "
1127
1128 # options emitted with CONFIG_ prefix but not available on command line
1129 CONFIG_EXTRA="
1130     avutil
1131     gplv3
1132     lgplv3
1133 "
1134
1135 CMDLINE_SELECT="
1136     $ARCH_EXT_LIST
1137     $CONFIG_LIST
1138     $THREADS_LIST
1139     asm
1140     cross_compile
1141     debug
1142     extra_warnings
1143     logging
1144     optimizations
1145     stripping
1146     symver
1147     yasm
1148 "
1149
1150 PATHS_LIST='
1151     bindir
1152     datadir
1153     incdir
1154     libdir
1155     mandir
1156     prefix
1157     shlibdir
1158 '
1159
1160 CMDLINE_SET="
1161     $PATHS_LIST
1162     ar
1163     arch
1164     as
1165     build_suffix
1166     cc
1167     cpu
1168     cross_prefix
1169     dep_cc
1170     extra_version
1171     host_cc
1172     host_cflags
1173     host_ldflags
1174     host_libs
1175     host_os
1176     ld
1177     logfile
1178     malloc_prefix
1179     nm
1180     pkg_config
1181     samples
1182     source_path
1183     strip
1184     sysinclude
1185     sysroot
1186     target_exec
1187     target_os
1188     target_path
1189 "
1190
1191 CMDLINE_APPEND="
1192     extra_cflags
1193 "
1194
1195 # code dependency declarations
1196
1197 # architecture extensions
1198
1199 armv5te_deps="arm"
1200 armv6_deps="arm"
1201 armv6t2_deps="arm"
1202 armvfp_deps="arm"
1203 iwmmxt_deps="arm"
1204 neon_deps="arm"
1205
1206 mmi_deps="mips"
1207
1208 altivec_deps="ppc"
1209 ppc4xx_deps="ppc"
1210
1211 vis_deps="sparc"
1212
1213 x86_64_suggest="cmov fast_cmov"
1214 amd3dnow_deps="mmx"
1215 amd3dnowext_deps="amd3dnow"
1216 mmx_deps="x86"
1217 mmx2_deps="mmx"
1218 sse_deps="mmx"
1219 ssse3_deps="sse"
1220 avx_deps="ssse3"
1221
1222 aligned_stack_if_any="ppc x86"
1223 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1224 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1225 fast_unaligned_if_any="armv6 ppc x86"
1226
1227 need_memalign="altivec neon sse"
1228 inline_asm_deps="!tms470"
1229
1230 symver_if_any="symver_asm_label symver_gnu_asm"
1231
1232 # subsystems
1233 dct_select="rdft"
1234 mdct_select="fft"
1235 rdft_select="fft"
1236
1237 # decoders / encoders / hardware accelerators
1238 aac_decoder_select="mdct rdft sinewin"
1239 aac_encoder_select="mdct sinewin"
1240 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1241 ac3_decoder_select="mdct ac3_parser"
1242 ac3_encoder_select="mdct ac3dsp"
1243 ac3_fixed_encoder_select="ac3dsp"
1244 alac_encoder_select="lpc"
1245 amrnb_decoder_select="lsp"
1246 amrwb_decoder_select="lsp"
1247 atrac1_decoder_select="mdct sinewin"
1248 atrac3_decoder_select="mdct"
1249 binkaudio_dct_decoder_select="mdct rdft dct"
1250 binkaudio_rdft_decoder_select="mdct rdft"
1251 cavs_decoder_select="golomb"
1252 cook_decoder_select="mdct sinewin"
1253 cscd_decoder_suggest="zlib"
1254 dca_decoder_select="mdct"
1255 dnxhd_encoder_select="aandct"
1256 dxa_decoder_select="zlib"
1257 eac3_decoder_select="ac3_decoder"
1258 eamad_decoder_select="aandct"
1259 eatgq_decoder_select="aandct"
1260 eatqi_decoder_select="aandct"
1261 ffv1_decoder_select="golomb"
1262 flac_decoder_select="golomb"
1263 flac_encoder_select="golomb lpc"
1264 flashsv_decoder_select="zlib"
1265 flashsv_encoder_select="zlib"
1266 flv_decoder_select="h263_decoder"
1267 flv_encoder_select="h263_encoder"
1268 fraps_decoder_select="huffman"
1269 h261_encoder_select="aandct"
1270 h263_decoder_select="h263_parser"
1271 h263_encoder_select="aandct"
1272 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1273 h263i_decoder_select="h263_decoder"
1274 h263p_encoder_select="h263_encoder"
1275 h264_decoder_select="golomb h264dsp h264pred"
1276 h264_dxva2_hwaccel_deps="dxva2api_h"
1277 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1278 h264_vaapi_hwaccel_select="vaapi"
1279 h264_vdpau_decoder_select="vdpau h264_decoder"
1280 imc_decoder_select="fft mdct"
1281 jpegls_decoder_select="golomb"
1282 jpegls_encoder_select="golomb"
1283 ljpeg_encoder_select="aandct"
1284 loco_decoder_select="golomb"
1285 mjpeg_encoder_select="aandct"
1286 mlp_decoder_select="mlp_parser"
1287 mp1float_decoder_select="dct"
1288 mp2float_decoder_select="dct"
1289 mp3adufloat_decoder_select="dct"
1290 mp3float_decoder_select="dct"
1291 mp3on4float_decoder_select="dct"
1292 mpeg1video_encoder_select="aandct"
1293 mpeg2video_encoder_select="aandct"
1294 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1295 mpeg4_encoder_select="h263_encoder"
1296 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1297 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1298 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1299 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1300 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1301 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1302 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1303 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1304 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1305 msmpeg4v1_decoder_select="h263_decoder"
1306 msmpeg4v1_encoder_select="h263_encoder"
1307 msmpeg4v2_decoder_select="h263_decoder"
1308 msmpeg4v2_encoder_select="h263_encoder"
1309 msmpeg4v3_decoder_select="h263_decoder"
1310 msmpeg4v3_encoder_select="h263_encoder"
1311 nellymoser_decoder_select="mdct sinewin"
1312 nellymoser_encoder_select="mdct sinewin"
1313 png_decoder_select="zlib"
1314 png_encoder_select="zlib"
1315 qcelp_decoder_select="lsp"
1316 qdm2_decoder_select="mdct rdft"
1317 ra_144_encoder_select="lpc"
1318 rv10_decoder_select="h263_decoder"
1319 rv10_encoder_select="h263_encoder"
1320 rv20_decoder_select="h263_decoder"
1321 rv20_encoder_select="h263_encoder"
1322 rv30_decoder_select="golomb h264pred"
1323 rv40_decoder_select="golomb h264pred"
1324 shorten_decoder_select="golomb"
1325 sipr_decoder_select="lsp"
1326 snow_decoder_select="dwt"
1327 snow_encoder_select="aandct dwt"
1328 svq1_encoder_select="aandct"
1329 svq3_decoder_select="golomb h264dsp h264pred"
1330 svq3_decoder_suggest="zlib"
1331 theora_decoder_select="vp3_decoder"
1332 tiff_decoder_suggest="zlib"
1333 tiff_encoder_suggest="zlib"
1334 truehd_decoder_select="mlp_decoder"
1335 tscc_decoder_select="zlib"
1336 twinvq_decoder_select="mdct lsp sinewin"
1337 vc1_decoder_select="h263_decoder"
1338 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1339 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1340 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1341 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1342 vorbis_decoder_select="mdct"
1343 vorbis_encoder_select="mdct"
1344 vp6_decoder_select="huffman"
1345 vp6a_decoder_select="vp6_decoder"
1346 vp6f_decoder_select="vp6_decoder"
1347 vp8_decoder_select="h264pred"
1348 wmapro_decoder_select="mdct sinewin"
1349 wmav1_decoder_select="mdct sinewin"
1350 wmav1_encoder_select="mdct sinewin"
1351 wmav2_decoder_select="mdct sinewin"
1352 wmav2_encoder_select="mdct sinewin"
1353 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1354 wmv1_decoder_select="h263_decoder"
1355 wmv1_encoder_select="h263_encoder"
1356 wmv2_decoder_select="h263_decoder"
1357 wmv2_encoder_select="h263_encoder"
1358 wmv3_decoder_select="vc1_decoder"
1359 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1360 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1361 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1362 zlib_decoder_select="zlib"
1363 zlib_encoder_select="zlib"
1364 zmbv_decoder_select="zlib"
1365 zmbv_encoder_select="zlib"
1366
1367 vaapi_deps="va_va_h"
1368 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1369
1370 # parsers
1371 h264_parser_select="golomb h264dsp h264pred"
1372
1373 # external libraries
1374 libdirac_decoder_deps="libdirac !libschroedinger"
1375 libdirac_encoder_deps="libdirac"
1376 libfaac_encoder_deps="libfaac"
1377 libgsm_decoder_deps="libgsm"
1378 libgsm_encoder_deps="libgsm"
1379 libgsm_ms_decoder_deps="libgsm"
1380 libgsm_ms_encoder_deps="libgsm"
1381 libmp3lame_encoder_deps="libmp3lame"
1382 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1383 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1384 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1385 libopenjpeg_decoder_deps="libopenjpeg"
1386 libschroedinger_decoder_deps="libschroedinger"
1387 libschroedinger_encoder_deps="libschroedinger"
1388 libspeex_decoder_deps="libspeex"
1389 libtheora_encoder_deps="libtheora"
1390 libvorbis_encoder_deps="libvorbis"
1391 libvpx_decoder_deps="libvpx"
1392 libvpx_encoder_deps="libvpx"
1393 libx264_encoder_deps="libx264"
1394 libxavs_encoder_deps="libxavs"
1395 libxvid_encoder_deps="libxvid"
1396
1397 # demuxers / muxers
1398 ac3_demuxer_select="ac3_parser"
1399 asf_stream_muxer_select="asf_muxer"
1400 avisynth_demuxer_deps="avisynth"
1401 dirac_demuxer_select="dirac_parser"
1402 eac3_demuxer_select="ac3_parser"
1403 flac_demuxer_select="flac_parser"
1404 ipod_muxer_select="mov_muxer"
1405 libnut_demuxer_deps="libnut"
1406 libnut_muxer_deps="libnut"
1407 matroska_audio_muxer_select="matroska_muxer"
1408 matroska_demuxer_suggest="zlib bzlib"
1409 mov_demuxer_suggest="zlib"
1410 mp3_demuxer_select="mpegaudio_parser"
1411 mp4_muxer_select="mov_muxer"
1412 mpegtsraw_demuxer_select="mpegts_demuxer"
1413 mxf_d10_muxer_select="mxf_muxer"
1414 ogg_demuxer_select="golomb"
1415 psp_muxer_select="mov_muxer"
1416 rtp_demuxer_select="sdp_demuxer"
1417 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1418 rtsp_demuxer_select="http_protocol rtpdec"
1419 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1420 sap_demuxer_select="sdp_demuxer"
1421 sap_muxer_select="rtp_muxer rtp_protocol"
1422 sdp_demuxer_select="rtpdec"
1423 spdif_muxer_select="aac_parser"
1424 tg2_muxer_select="mov_muxer"
1425 tgp_muxer_select="mov_muxer"
1426 w64_demuxer_deps="wav_demuxer"
1427
1428 # indevs / outdevs
1429 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1430 alsa_outdev_deps="alsa_asoundlib_h"
1431 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1432 dv1394_indev_deps="dv1394 dv_demuxer"
1433 jack_indev_deps="jack_jack_h"
1434 libdc1394_indev_deps="libdc1394"
1435 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1436 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1437 sndio_indev_deps="sndio_h"
1438 sndio_outdev_deps="sndio_h"
1439 v4l_indev_deps="linux_videodev_h"
1440 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1441 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1442 vfwcap_indev_extralibs="-lavicap32"
1443 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1444 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1445
1446 # protocols
1447 gopher_protocol_deps="network"
1448 http_protocol_deps="network"
1449 http_protocol_select="tcp_protocol"
1450 mmsh_protocol_select="http_protocol"
1451 mmst_protocol_deps="network"
1452 rtmp_protocol_select="tcp_protocol"
1453 rtp_protocol_select="udp_protocol"
1454 tcp_protocol_deps="network"
1455 udp_protocol_deps="network"
1456
1457 # filters
1458 blackframe_filter_deps="gpl"
1459 cropdetect_filter_deps="gpl"
1460 frei0r_filter_deps="frei0r dlopen strtok_r"
1461 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1462 hqdn3d_filter_deps="gpl"
1463 scale_filter_deps="swscale"
1464 ocv_filter_deps="libopencv"
1465 yadif_filter_deps="gpl"
1466
1467 # libraries
1468 avdevice_deps="avcodec avformat"
1469 avformat_deps="avcodec"
1470
1471 # programs
1472 ffmpeg_deps="avcodec avformat swscale"
1473 ffmpeg_select="buffer_filter"
1474 ffplay_deps="avcodec avformat swscale sdl"
1475 ffplay_select="rdft"
1476 ffprobe_deps="avcodec avformat"
1477 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1478 ffserver_extralibs='$ldl'
1479
1480 doc_deps="texi2html"
1481
1482 # tests
1483
1484 test_deps(){
1485     suf1=$1
1486     suf2=$2
1487     shift 2
1488     for v; do
1489         dep=${v%=*}
1490         tests=${v#*=}
1491         for name in ${tests}; do
1492             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1493         done
1494     done
1495 }
1496
1497 set_ne_test_deps(){
1498     eval ${1}_be_test_deps="bigendian"
1499     eval ${1}_le_test_deps="!bigendian"
1500 }
1501
1502 test_deps _encoder _decoder                                             \
1503     adpcm_g726=g726                                                     \
1504     adpcm_ima_qt                                                        \
1505     adpcm_ima_wav                                                       \
1506     adpcm_ms                                                            \
1507     adpcm_swf                                                           \
1508     adpcm_yamaha=adpcm_yam                                              \
1509     alac                                                                \
1510     asv1                                                                \
1511     asv2                                                                \
1512     bmp                                                                 \
1513     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1514     dvvideo="dv dv50"                                                   \
1515     ffv1                                                                \
1516     flac                                                                \
1517     flashsv                                                             \
1518     flv                                                                 \
1519     gif                                                                 \
1520     h261                                                                \
1521     h263="h263 h263p"                                                   \
1522     huffyuv                                                             \
1523     jpegls                                                              \
1524     mjpeg="jpg mjpeg ljpeg"                                             \
1525     mp2                                                                 \
1526     mpeg1video="mpeg mpeg1b"                                            \
1527     mpeg2video="mpeg2 mpeg2thread"                                      \
1528     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1529     msmpeg4v3=msmpeg4                                                   \
1530     msmpeg4v2                                                           \
1531     pbm=pbmpipe                                                         \
1532     pcx                                                                 \
1533     pgm="pgm pgmpipe"                                                   \
1534     png                                                                 \
1535     ppm="ppm ppmpipe"                                                   \
1536     rawvideo="rgb yuv"                                                  \
1537     roq                                                                 \
1538     rv10                                                                \
1539     rv20                                                                \
1540     sgi                                                                 \
1541     snow="snow snowll"                                                  \
1542     svq1                                                                \
1543     targa=tga                                                           \
1544     tiff                                                                \
1545     wmav1                                                               \
1546     wmav2                                                               \
1547     wmv1                                                                \
1548     wmv2                                                                \
1549
1550 test_deps _muxer _demuxer                                               \
1551     aiff                                                                \
1552     pcm_alaw=alaw                                                       \
1553     asf                                                                 \
1554     au                                                                  \
1555     avi                                                                 \
1556     dv=dv_fmt                                                           \
1557     ffm                                                                 \
1558     flv=flv_fmt                                                         \
1559     gxf                                                                 \
1560     matroska=mkv                                                        \
1561     mmf                                                                 \
1562     mov                                                                 \
1563     pcm_mulaw=mulaw                                                     \
1564     mxf                                                                 \
1565     nut                                                                 \
1566     ogg                                                                 \
1567     rawvideo=pixfmt                                                     \
1568     rm                                                                  \
1569     swf                                                                 \
1570     mpegts=ts                                                           \
1571     voc                                                                 \
1572     wav                                                                 \
1573     yuv4mpegpipe=yuv4mpeg                                               \
1574
1575 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1576 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1577
1578 set_ne_test_deps pixdesc
1579 set_ne_test_deps pixfmts_copy
1580 set_ne_test_deps pixfmts_crop
1581 set_ne_test_deps pixfmts_hflip
1582 set_ne_test_deps pixfmts_null
1583 set_ne_test_deps pixfmts_pad
1584 set_ne_test_deps pixfmts_scale
1585 set_ne_test_deps pixfmts_vflip
1586
1587 # default parameters
1588
1589 logfile="config.log"
1590
1591 # installation paths
1592 prefix_default="/usr/local"
1593 bindir_default='${prefix}/bin'
1594 datadir_default='${prefix}/share/ffmpeg'
1595 incdir_default='${prefix}/include'
1596 libdir_default='${prefix}/lib'
1597 mandir_default='${prefix}/share/man'
1598 shlibdir_default="$libdir_default"
1599
1600 # toolchain
1601 ar_default="ar"
1602 cc_default="gcc"
1603 cc_version=\"unknown\"
1604 host_cc_default="gcc"
1605 ln_s="ln -sf"
1606 nm_default="nm"
1607 objformat="elf"
1608 pkg_config_default=pkg-config
1609 ranlib="ranlib"
1610 strip_default="strip"
1611 yasmexe="yasm"
1612 nogas=":"
1613
1614 nm_opts='-g'
1615
1616 # machine
1617 arch_default=$(uname -m)
1618 cpu="generic"
1619
1620 # OS
1621 target_os_default=$(tolower $(uname -s))
1622 host_os=$target_os_default
1623
1624 # configurable options
1625 enable avcodec
1626 enable avdevice
1627 enable avfilter
1628 enable avformat
1629 enable avutil
1630 enable asm
1631 enable debug
1632 enable doc
1633 enable fastdiv
1634 enable ffmpeg
1635 enable ffplay
1636 enable ffprobe
1637 enable ffserver
1638 enable mpegaudio_hp
1639 enable network
1640 enable optimizations
1641 enable protocols
1642 enable static
1643 enable stripping
1644 enable swscale
1645 enable swscale_alpha
1646
1647 # build settings
1648 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1649 FFSERVERLDFLAGS=-Wl,-E
1650 LIBPREF="lib"
1651 LIBSUF=".a"
1652 FULLNAME='$(NAME)$(BUILDSUF)'
1653 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1654 SLIBPREF="lib"
1655 SLIBSUF=".so"
1656 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1657 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1658 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1659 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1660
1661 CC_O='-o $@'
1662
1663 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1664 host_libs='-lm'
1665
1666 target_path='$(CURDIR)'
1667
1668 # since the object filename is not given with the -MM flag, the compiler
1669 # is only able to print the basename, and we must add the path ourselves
1670 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1671 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1672
1673 # find source path
1674 source_path="$(dirname "$0")"
1675 enable source_path_used
1676 if test -f configure; then
1677     source_path="$(pwd)"
1678     disable source_path_used
1679 else
1680     source_path="$(cd "$source_path"; pwd)"
1681     echo "$source_path" | grep -q '[[:blank:]]' &&
1682         die "Out of tree builds are impossible with whitespace in source path."
1683     test -e "$source_path/config.h" &&
1684         die "Out of tree builds are impossible with config.h in source dir."
1685 fi
1686
1687 for v in "$@"; do
1688     r=${v#*=}
1689     l=${v%"$r"}
1690     r=$(sh_quote "$r")
1691     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1692 done
1693
1694 find_things(){
1695     thing=$1
1696     pattern=$2
1697     file=$source_path/$3
1698     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1699 }
1700
1701 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1702 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1703 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1704 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1705 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1706 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1707 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1708 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1709 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1710 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1711 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1712
1713 find_tests(){
1714     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1715 }
1716
1717 ACODEC_TESTS=$(find_tests acodec)
1718 VCODEC_TESTS=$(find_tests vsynth1)
1719 LAVF_TESTS=$(find_tests lavf)
1720 LAVFI_TESTS=$(find_tests lavfi)
1721 SEEK_TESTS=$(find_tests seek seek_)
1722
1723 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1724
1725 for n in $COMPONENT_LIST; do
1726     v=$(toupper ${n%s})_LIST
1727     eval enable \$$v
1728     eval ${n}_if_any="\$$v"
1729 done
1730
1731 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1732
1733 die_unknown(){
1734     echo "Unknown option \"$1\"."
1735     echo "See $0 --help for available options."
1736     exit 1
1737 }
1738
1739 show_list() {
1740     suffix=_$1
1741     shift
1742     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1743     exit 0
1744 }
1745
1746 for opt do
1747     optval="${opt#*=}"
1748     case "$opt" in
1749     --extra-ldflags=*) add_ldflags $optval
1750     ;;
1751     --extra-libs=*) add_extralibs $optval
1752     ;;
1753     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1754     ;;
1755     --enable-debug=*) debuglevel="$optval"
1756     ;;
1757     --disable-everything)
1758     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1759     ;;
1760     --enable-*=*|--disable-*=*)
1761     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1762     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1763     eval list=\$$(toupper $thing)_LIST
1764     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1765     $action $(filter "$name" $list)
1766     ;;
1767     --enable-?*|--disable-?*)
1768     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1769     if is_in $option $COMPONENT_LIST; then
1770         test $action = disable && action=unset
1771         eval $action \$$(toupper ${option%s})_LIST
1772     elif is_in $option $CMDLINE_SELECT; then
1773         $action $option
1774     else
1775         die_unknown $opt
1776     fi
1777     ;;
1778     --list-*)
1779         NAME="${opt#--list-}"
1780         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1781         NAME=${NAME%s}
1782         eval show_list $NAME \$$(toupper $NAME)_LIST
1783     ;;
1784     --help|-h) show_help
1785     ;;
1786     *)
1787     optname="${opt%%=*}"
1788     optname="${optname#--}"
1789     optname=$(echo "$optname" | sed 's/-/_/g')
1790     if is_in $optname $CMDLINE_SET; then
1791         eval $optname='$optval'
1792     elif is_in $optname $CMDLINE_APPEND; then
1793         append $optname "$optval"
1794     else
1795          die_unknown $opt
1796     fi
1797     ;;
1798     esac
1799 done
1800
1801 disabled logging && logfile=/dev/null
1802
1803 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1804 set >> $logfile
1805
1806 test -n "$cross_prefix" && enable cross_compile
1807
1808 if enabled cross_compile; then
1809     test -n "$arch" && test -n "$target_os" ||
1810         die "Must specify target arch and OS when cross-compiling"
1811 fi
1812
1813 set_default arch target_os
1814
1815 ar_default="${cross_prefix}${ar_default}"
1816 cc_default="${cross_prefix}${cc_default}"
1817 nm_default="${cross_prefix}${nm_default}"
1818 pkg_config_default="${cross_prefix}${pkg_config_default}"
1819 ranlib="${cross_prefix}${ranlib}"
1820 strip_default="${cross_prefix}${strip_default}"
1821
1822 sysinclude_default="${sysroot}/usr/include"
1823
1824 set_default cc nm pkg_config strip sysinclude
1825 enabled cross_compile || host_cc_default=$cc
1826 set_default host_cc
1827
1828 exesuf() {
1829     case $1 in
1830         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1831     esac
1832 }
1833
1834 EXESUF=$(exesuf $target_os)
1835 HOSTEXESUF=$(exesuf $host_os)
1836
1837 # set temporary file name
1838 : ${TMPDIR:=$TEMPDIR}
1839 : ${TMPDIR:=$TMP}
1840 : ${TMPDIR:=/tmp}
1841
1842 if ! check_cmd mktemp -u XXXXXX; then
1843     # simple replacement for missing mktemp
1844     # NOT SAFE FOR GENERAL USE
1845     mktemp(){
1846         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1847     }
1848 fi
1849
1850 tmpfile(){
1851     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1852         (set -C; exec > $tmp) 2>/dev/null ||
1853         die "Unable to create temporary file in $TMPDIR."
1854     append TMPFILES $tmp
1855     eval $1=$tmp
1856 }
1857
1858 trap 'rm -f -- $TMPFILES' EXIT
1859
1860 tmpfile TMPC  .c
1861 tmpfile TMPE  $EXESUF
1862 tmpfile TMPH  .h
1863 tmpfile TMPO  .o
1864 tmpfile TMPS  .S
1865 tmpfile TMPV  .ver
1866 tmpfile TMPSH .sh
1867 tmpfile TMPASM .asm
1868
1869 unset -f mktemp
1870
1871 chmod +x $TMPE
1872
1873 # make sure we can execute files in $TMPDIR
1874 cat > $TMPSH 2>> $logfile <<EOF
1875 #! /bin/sh
1876 EOF
1877 chmod +x $TMPSH >> $logfile 2>&1
1878 if ! $TMPSH >> $logfile 2>&1; then
1879     cat <<EOF
1880 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1881 variable to another directory and make sure that it is not mounted noexec.
1882 EOF
1883     die "Sanity test failed."
1884 fi
1885
1886 filter_cflags=echo
1887 filter_cppflags=echo
1888 filter_asflags=echo
1889
1890 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1891     cc_type=llvm_gcc
1892     cc_version=__VERSION__
1893     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1894     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1895     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1896     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1897     speed_cflags='-O3'
1898     size_cflags='-Os'
1899 elif $cc -v 2>&1 | grep -qi ^gcc; then
1900     cc_type=gcc
1901     cc_version=__VERSION__
1902     gcc_version=$($cc --version | head -n1)
1903     gcc_basever=$($cc -dumpversion)
1904     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1905     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1906     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1907     if ! $cc -dumpversion | grep -q '^2\.'; then
1908         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1909         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1910     fi
1911     speed_cflags='-O3'
1912     size_cflags='-Os'
1913 elif $cc --version 2>/dev/null | grep -q Intel; then
1914     cc_type=icc
1915     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1916     cc_ident=$($cc --version | head -n1)
1917     icc_version=$($cc -dumpversion)
1918     CC_DEPFLAGS='-MMD'
1919     AS_DEPFLAGS='-MMD'
1920     speed_cflags='-O3'
1921     size_cflags='-Os'
1922     noopt_cflags='-O1'
1923 elif $cc -v 2>&1 | grep -q xlc; then
1924     cc_type=xlc
1925     cc_version="AV_STRINGIFY(__IBMC__)"
1926     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1927     speed_cflags='-O5'
1928     size_cflags='-O5 -qcompact'
1929 elif $cc -V 2>/dev/null | grep -q Compaq; then
1930     cc_type=ccc
1931     cc_version="AV_STRINGIFY(__DECC_VER)"
1932     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1933     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1934     debuglevel=3
1935     add_ldflags -Wl,-z,now # calls to libots crash without this
1936     speed_cflags='-fast'
1937     size_cflags='-O1'
1938 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1939     test -d "$sysroot" || die "No valid sysroot specified."
1940     cc_type=armcc
1941     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1942     cc_ident=$($cc --vsn | head -n1)
1943     armcc_conf="$PWD/armcc.conf"
1944     $cc --arm_linux_configure                 \
1945         --arm_linux_config_file="$armcc_conf" \
1946         --configure_sysroot="$sysroot"        \
1947         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1948         die "Error creating armcc configuration file."
1949     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1950     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1951     as_default="${cross_prefix}gcc"
1952     CC_DEPFLAGS='-MMD'
1953     AS_DEPFLAGS='-MMD'
1954     speed_cflags='-O3'
1955     size_cflags='-Os'
1956     filter_asflags="filter_out -W${armcc_opt}*"
1957 elif $cc -version 2>/dev/null | grep -q TMS470; then
1958     cc_type=tms470
1959     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1960     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1961     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1962     CC_O='-fr=$(@D)'
1963     as_default="${cross_prefix}gcc"
1964     ld_default="${cross_prefix}gcc"
1965     TMPO=$(basename $TMPC .c).o
1966     append TMPFILES $TMPO
1967     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1968     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1969     AS_DEPFLAGS='-MMD'
1970     speed_cflags='-O3 -mf=5'
1971     size_cflags='-O3 -mf=2'
1972     filter_cflags=tms470_flags
1973     tms470_flags(){
1974         for flag; do
1975             case $flag in
1976                 -march=*|-mcpu=*)
1977                     case "${flag#*=}" in
1978                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1979                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1980                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1981                         armv6*|arm11*)          echo -mv=6   ;;
1982                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1983                                                 echo -mv=5e  ;;
1984                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1985                     esac
1986                     ;;
1987                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1988                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1989                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1990                 -msoft-float)   echo --float_support=vfplib       ;;
1991                 -O[0-3]|-mf=*)  echo $flag                        ;;
1992                 -g)             echo -g -mn                       ;;
1993                 -pds=*)         echo $flag                        ;;
1994             esac
1995         done
1996     }
1997 elif $cc -v 2>&1 | grep -q clang; then
1998     cc_type=clang
1999     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2000         cc_version=__clang_version__ || cc_version=__VERSION__
2001     cc_ident=$($cc --version | head -n1)
2002     CC_DEPFLAGS='-MMD'
2003     AS_DEPFLAGS='-MMD'
2004     speed_cflags='-O3'
2005     size_cflags='-Os'
2006 elif $cc -V 2>&1 | grep -q Sun; then
2007     cc_type=suncc
2008     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2009     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2010     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2011     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2012     speed_cflags='-O5'
2013     size_cflags='-O5 -xspace'
2014     filter_cflags=suncc_flags
2015     suncc_flags(){
2016         for flag; do
2017             case $flag in
2018                 -march=*|-mcpu=*)
2019                     case "${flag#*=}" in
2020                         native)                   echo -xtarget=native       ;;
2021                         v9|niagara)               echo -xarch=sparc          ;;
2022                         ultrasparc)               echo -xarch=sparcvis       ;;
2023                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2024                         i586|pentium)             echo -xchip=pentium        ;;
2025                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2026                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2027                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2028                         pentium4*)          echo -xtarget=pentium4           ;;
2029                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2030                         *-sse3)             echo -xarch=sse3                 ;;
2031                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2032                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2033                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2034                         k8|opteron|athlon64|athlon-fx)
2035                                                   echo -xarch=sse2a          ;;
2036                         athlon*)                  echo -xarch=pentium_proa   ;;
2037                     esac
2038                     ;;
2039                 -std=c99)             echo -xc99              ;;
2040                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2041                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2042                 -W*,*)                echo $flag              ;;
2043                 -f*-*|-W*)                                    ;;
2044                 *)                    echo $flag              ;;
2045             esac
2046         done
2047     }
2048 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2049     cc_type=pathscale
2050     cc_version=__PATHSCALE__
2051     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2052     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2053     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2054     speed_cflags='-O2'
2055     size_cflags='-Os'
2056 elif $cc -v 2>&1 | grep -q Open64; then
2057     cc_type=open64
2058     cc_version=__OPEN64__
2059     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2060     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2061     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2062     speed_cflags='-O2'
2063     size_cflags='-Os'
2064 fi
2065
2066 test -n "$cc_type" && enable $cc_type ||
2067     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2068
2069 : ${as_default:=$cc}
2070 : ${dep_cc_default:=$cc}
2071 : ${ld_default:=$cc}
2072 set_default ar as dep_cc ld
2073
2074 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2075 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2076
2077 add_cflags $extra_cflags
2078 add_asflags $extra_cflags
2079
2080 if test -n "$sysroot"; then
2081     case "$cc_type" in
2082         gcc|llvm_gcc|clang)
2083             add_cppflags --sysroot="$sysroot"
2084             add_ldflags --sysroot="$sysroot"
2085         ;;
2086         tms470)
2087             add_cppflags -I"$sysinclude"
2088             add_ldflags  --sysroot="$sysroot"
2089         ;;
2090     esac
2091 fi
2092
2093 if test "$cpu" = host; then
2094     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2095
2096     case "$cc_type" in
2097         gcc|llvm_gcc)
2098             check_native(){
2099                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2100                 sed -n "/$1=/{
2101                             s/.*$1=\\([^ ]*\\).*/\\1/
2102                             p
2103                             q
2104                         }" $TMPE
2105             }
2106             cpu=$(check_native -march || check_native -mcpu)
2107         ;;
2108     esac
2109
2110     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2111 fi
2112
2113 # Deal with common $arch aliases
2114 case "$arch" in
2115     arm*)
2116         arch="arm"
2117     ;;
2118     mips|mipsel|IP*)
2119         arch="mips"
2120     ;;
2121     mips64*)
2122         arch="mips"
2123         subarch="mips64"
2124     ;;
2125     parisc|hppa)
2126         arch="parisc"
2127     ;;
2128     parisc64|hppa64)
2129         arch="parisc"
2130         subarch="parisc64"
2131     ;;
2132     "Power Macintosh"|ppc|powerpc)
2133         arch="ppc"
2134     ;;
2135     ppc64|powerpc64)
2136         arch="ppc"
2137         subarch="ppc64"
2138     ;;
2139     s390|s390x)
2140         arch="s390"
2141     ;;
2142     sh4|sh)
2143         arch="sh4"
2144     ;;
2145     sun4u|sparc64)
2146         arch="sparc"
2147         subarch="sparc64"
2148     ;;
2149     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2150         arch="x86"
2151     ;;
2152 esac
2153
2154 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2155 enable $arch
2156
2157 # Add processor-specific flags
2158 if test "$cpu" = generic; then
2159     : do nothing
2160 elif enabled ppc; then
2161
2162     case $(tolower $cpu) in
2163         601|ppc601|powerpc601)
2164             cpuflags="-mcpu=601"
2165             disable altivec
2166         ;;
2167         603*|ppc603*|powerpc603*)
2168             cpuflags="-mcpu=603"
2169             disable altivec
2170         ;;
2171         604*|ppc604*|powerpc604*)
2172             cpuflags="-mcpu=604"
2173             disable altivec
2174         ;;
2175         g3|75*|ppc75*|powerpc75*)
2176             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2177             disable altivec
2178         ;;
2179         g4|745*|ppc745*|powerpc745*)
2180             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2181         ;;
2182         74*|ppc74*|powerpc74*)
2183             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2184         ;;
2185         g5|970|ppc970|powerpc970|power4*)
2186             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2187         ;;
2188         cell)
2189             cpuflags="-mcpu=cell"
2190             enable ldbrx
2191         ;;
2192         e500v2)
2193             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2194             disable altivec
2195         ;;
2196         e500)
2197             cpuflags="-mcpu=8540 -mhard-float"
2198             disable altivec
2199         ;;
2200     esac
2201
2202 elif enabled x86; then
2203
2204     case $cpu in
2205         i[345]86|pentium)
2206             cpuflags="-march=$cpu"
2207             disable mmx
2208         ;;
2209         # targets that do NOT support conditional mov (cmov)
2210         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2211             cpuflags="-march=$cpu"
2212             disable cmov
2213         ;;
2214         # targets that do support conditional mov (cmov)
2215         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2216             cpuflags="-march=$cpu"
2217             enable cmov
2218             enable fast_cmov
2219         ;;
2220         # targets that do support conditional mov but on which it's slow
2221         pentium4|pentium4m|prescott|nocona)
2222             cpuflags="-march=$cpu"
2223             enable cmov
2224             disable fast_cmov
2225         ;;
2226     esac
2227
2228 elif enabled sparc; then
2229
2230     case $cpu in
2231         niagara)
2232             cpuflags="-mcpu=$cpu"
2233             disable vis
2234         ;;
2235         sparc64)
2236             cpuflags="-mcpu=v9"
2237         ;;
2238     esac
2239
2240 elif enabled arm; then
2241
2242     case $cpu in
2243         armv*)
2244             cpuflags="-march=$cpu"
2245             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2246         ;;
2247         *)
2248             cpuflags="-mcpu=$cpu"
2249             case $cpu in
2250                 cortex-a*)                               subarch=armv7a  ;;
2251                 cortex-r*)                               subarch=armv7r  ;;
2252                 cortex-m*)                               subarch=armv7m  ;;
2253                 arm11*)                                  subarch=armv6   ;;
2254                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2255                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2256             esac
2257         ;;
2258     esac
2259
2260 elif enabled alpha; then
2261
2262     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2263
2264 elif enabled bfin; then
2265
2266     cpuflags="-mcpu=$cpu"
2267
2268 elif enabled mips; then
2269
2270     cpuflags="-march=$cpu"
2271
2272 elif enabled avr32; then
2273
2274     case $cpu in
2275         ap7[02]0[0-2])
2276             subarch="avr32_ap"
2277             cpuflags="-mpart=$cpu"
2278         ;;
2279         ap)
2280             subarch="avr32_ap"
2281             cpuflags="-march=$cpu"
2282         ;;
2283         uc3[ab]*)
2284             subarch="avr32_uc"
2285             cpuflags="-mcpu=$cpu"
2286         ;;
2287         uc)
2288             subarch="avr32_uc"
2289             cpuflags="-march=$cpu"
2290         ;;
2291     esac
2292
2293 fi
2294
2295 add_cflags $cpuflags
2296 add_asflags $cpuflags
2297
2298 # compiler sanity check
2299 check_exec <<EOF
2300 int main(void){ return 0; }
2301 EOF
2302 if test "$?" != 0; then
2303     echo "$cc is unable to create an executable file."
2304     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2305         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2306         echo "Only do this if you know what cross compiling means."
2307     fi
2308     die "C compiler test failed."
2309 fi
2310
2311 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2312 check_cflags -std=c99
2313 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2314 #include <stdlib.h>
2315 EOF
2316 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2317 #include <stdlib.h>
2318 EOF
2319
2320 check_host_cflags -std=c99
2321
2322 case "$arch" in
2323     alpha|ia64|mips|parisc|sparc)
2324         spic=$shared
2325     ;;
2326     x86)
2327         subarch="x86_32"
2328         check_cc <<EOF && subarch="x86_64"
2329         int test[(int)sizeof(char*) - 7];
2330 EOF
2331         if test "$subarch" = "x86_64"; then
2332             spic=$shared
2333         fi
2334     ;;
2335 esac
2336
2337 enable $subarch
2338 enabled spic && enable pic
2339
2340 # OS specific
2341 case $target_os in
2342     haiku)
2343         prefix_default="/boot/common"
2344         network_extralibs="-lnetwork"
2345         host_libs=
2346         ;;
2347     sunos)
2348         FFSERVERLDFLAGS=""
2349         SHFLAGS='-shared -Wl,-h,$$(@F)'
2350         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2351         network_extralibs="-lsocket -lnsl"
2352         add_cppflags -D__EXTENSIONS__
2353         nm_opts='-P -g'
2354         ;;
2355     netbsd)
2356         disable symver
2357         oss_indev_extralibs="-lossaudio"
2358         oss_outdev_extralibs="-lossaudio"
2359         add_cppflags -D_XOPEN_SOURCE=600
2360         ;;
2361     openbsd)
2362         enable malloc_aligned
2363         # On OpenBSD 4.5. the compiler does not use PIC unless
2364         # explicitly using -fPIC. Libav builds fine without PIC,
2365         # however the generated executable will not do anything
2366         # (simply quits with exit-code 1, no crash, no output).
2367         # Thus explicitly enable PIC here.
2368         enable pic
2369         disable symver
2370         SHFLAGS='-shared'
2371         oss_indev_extralibs="-lossaudio"
2372         oss_outdev_extralibs="-lossaudio"
2373         ;;
2374     dragonfly)
2375         enable malloc_aligned
2376         disable symver
2377         ;;
2378     freebsd)
2379         enable malloc_aligned
2380         ;;
2381     bsd/os)
2382         add_extralibs -lpoll -lgnugetopt
2383         strip="strip -d"
2384         ;;
2385     darwin)
2386         enable malloc_aligned
2387         gas="gas-preprocessor.pl $cc"
2388         enabled ppc && add_asflags -force_cpusubtype_ALL
2389         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2390         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2391         strip="${strip} -x"
2392         add_ldflags -Wl,-dynamic,-search_paths_first
2393         SLIBSUF=".dylib"
2394         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2395         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2396         FFSERVERLDFLAGS=-Wl,-bind_at_load
2397         objformat="macho"
2398         enabled x86_64 && objformat="macho64"
2399         enabled_any pic shared ||
2400             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2401         ;;
2402     mingw32*)
2403         if test $target_os = "mingw32ce"; then
2404             disable network
2405         else
2406             target_os=mingw32
2407         fi
2408         LIBTARGET=i386
2409         if enabled x86_64; then
2410             enable malloc_aligned
2411             LIBTARGET="i386:x86-64"
2412         elif enabled arm; then
2413             LIBTARGET=arm-wince
2414         fi
2415         shlibdir_default="$bindir_default"
2416         SLIBPREF=""
2417         SLIBSUF=".dll"
2418         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2419         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2420         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2421         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2422             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2423             install -d "$(LIBDIR)"; \
2424             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2425         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2426         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'
2427         objformat="win32"
2428         dlltool="${cross_prefix}dlltool"
2429         enable dos_paths
2430         check_cflags -fno-common
2431         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2432                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2433                 die "ERROR: MinGW runtime version must be >= 3.15."
2434         add_cppflags -U__STRICT_ANSI__
2435         ;;
2436     cygwin*)
2437         target_os=cygwin
2438         shlibdir_default="$bindir_default"
2439         SLIBPREF="cyg"
2440         SLIBSUF=".dll"
2441         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2442         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2443         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2444         objformat="win32"
2445         enable dos_paths
2446         check_cflags -fno-common
2447         ;;
2448     *-dos|freedos|opendos)
2449         network_extralibs="-lsocket"
2450         objformat="coff"
2451         enable dos_paths
2452         ;;
2453     linux)
2454         enable dv1394
2455         ;;
2456     irix*)
2457         target_os=irix
2458         ranlib="echo ignoring ranlib"
2459         ;;
2460     os/2*)
2461         strip="lxlite -CS"
2462         ln_s="cp -f"
2463         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2464         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2465         FFSERVERLDFLAGS=""
2466         LIBSUF="_s.a"
2467         SLIBPREF=""
2468         SLIBSUF=".dll"
2469         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2470         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2471         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2472           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2473           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2474           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2475           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2476           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2477         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2478           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2479         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2480         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2481         enable dos_paths
2482         ;;
2483     gnu/kfreebsd)
2484         ;;
2485     gnu)
2486         ;;
2487     qnx)
2488         add_cppflags -D_QNX_SOURCE
2489         network_extralibs="-lsocket"
2490         ;;
2491     none)
2492         ;;
2493     *)
2494         die "Unknown OS '$target_os'."
2495         ;;
2496 esac
2497
2498 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2499
2500 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2501
2502 set_default $PATHS_LIST
2503
2504 # we need to build at least one lib type
2505 if ! enabled_any static shared; then
2506     cat <<EOF
2507 At least one library type must be built.
2508 Specify --enable-static to build the static libraries or --enable-shared to
2509 build the shared libraries as well. To only build the shared libraries specify
2510 --disable-static in addition to --enable-shared.
2511 EOF
2512     exit 1;
2513 fi
2514
2515 disabled static && LIBNAME=""
2516
2517 die_license_disabled() {
2518     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2519 }
2520
2521 die_license_disabled gpl libx264
2522 die_license_disabled gpl libxavs
2523 die_license_disabled gpl libxvid
2524 die_license_disabled gpl postproc
2525 die_license_disabled gpl x11grab
2526
2527 die_license_disabled nonfree libfaac
2528
2529 die_license_disabled version3 libopencore_amrnb
2530 die_license_disabled version3 libopencore_amrwb
2531
2532 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2533
2534 disabled optimizations || check_cflags -fomit-frame-pointer
2535
2536 enable_pic() {
2537     enable pic
2538     add_cppflags -DPIC
2539     add_cflags   -fPIC
2540     add_asflags  -fPIC
2541 }
2542
2543 enabled pic && enable_pic
2544
2545 check_cc <<EOF || die "Symbol mangling check failed."
2546 int ff_extern;
2547 EOF
2548 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2549 extern_prefix=${sym%%ff_extern*}
2550
2551 check_cc <<EOF && enable inline_asm
2552 void foo(void) { __asm__ volatile ("" ::); }
2553 EOF
2554
2555 _restrict=
2556 for restrict_keyword in restrict __restrict__ __restrict; do
2557     check_cc <<EOF && _restrict=$restrict_keyword && break
2558 void foo(char * $restrict_keyword p);
2559 EOF
2560 done
2561
2562 check_cc <<EOF && enable attribute_packed
2563 struct { int x; } __attribute__((packed)) x;
2564 EOF
2565
2566 check_cc <<EOF && enable attribute_may_alias
2567 union { int x; } __attribute__((may_alias)) x;
2568 EOF
2569
2570 check_cc <<EOF || die "endian test failed"
2571 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2572 EOF
2573 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2574
2575 if enabled alpha; then
2576
2577     check_cflags -mieee
2578
2579 elif enabled arm; then
2580
2581     check_cflags -marm
2582     nogas=die
2583
2584     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2585         enable vfp_args
2586     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2587         case "${cross_prefix:-$cc}" in
2588             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2589             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2590 __asm__ (".eabi_attribute 28, 1");
2591 int main(void) { return 0; }
2592 EOF
2593         esac
2594         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2595     fi
2596
2597     # We have to check if pld is a nop and disable it.
2598     check_asm pld '"pld [r0]"'
2599
2600     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2601     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2602     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2603     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2604     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2605     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2606
2607     enabled_all armv6t2 shared !pic && enable_pic
2608
2609 elif enabled mips; then
2610
2611     check_asm loongson '"dmult.g $1, $2, $3"'
2612     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2613
2614 elif enabled ppc; then
2615
2616     enable local_aligned_8 local_aligned_16
2617
2618     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2619     check_asm ibm_asm   '"add 0, 0, 0"'
2620     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2621     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2622
2623     # AltiVec flags: The FSF version of GCC differs from the Apple version
2624     if enabled altivec; then
2625         nogas=warn
2626         check_cflags -maltivec -mabi=altivec &&
2627         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2628         check_cflags -faltivec
2629
2630         # check if our compiler supports Motorola AltiVec C API
2631         check_cc <<EOF || disable altivec
2632 $inc_altivec_h
2633 int main(void) {
2634     vector signed int v1, v2, v3;
2635     v1 = vec_add(v2,v3);
2636     return 0;
2637 }
2638 EOF
2639
2640         # check if our compiler supports braces for vector declarations
2641         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2642 $inc_altivec_h
2643 int main (void) { (vector int) {1}; return 0; }
2644 EOF
2645     fi
2646
2647 elif enabled sparc; then
2648
2649     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2650         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2651
2652 elif enabled x86; then
2653
2654     enable local_aligned_8 local_aligned_16
2655
2656     # check whether EBP is available on x86
2657     # As 'i' is stored on the stack, this program will crash
2658     # if the base pointer is used to access it because the
2659     # base pointer is cleared in the inline assembly code.
2660     check_exec_crash <<EOF && enable ebp_available
2661     volatile int i=0;
2662     __asm__ volatile (
2663         "xorl %%ebp, %%ebp"
2664     ::: "%ebp");
2665     return i;
2666 EOF
2667
2668     # check whether EBX is available on x86
2669     check_asm ebx_available '""::"b"(0)' &&
2670         check_asm ebx_available '"":::"%ebx"'
2671
2672     # check whether xmm clobbers are supported
2673     check_asm xmm_clobbers '"":::"%xmm0"'
2674
2675     # check whether more than 10 operands are supported
2676     check_cc <<EOF && enable ten_operands
2677 int main(void) {
2678     int x=0;
2679     __asm__ volatile(
2680         ""
2681         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2682     );
2683     return 0;
2684 }
2685 EOF
2686
2687     # check whether binutils is new enough to compile SSSE3/MMX2
2688     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2689     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2690
2691     check_asm bswap '"bswap %%eax" ::: "%eax"'
2692
2693     if ! disabled_any asm mmx yasm; then
2694         if check_cmd $yasmexe --version; then
2695             enabled x86_64 && yasm_extra="-m amd64"
2696             yasm_debug="-g dwarf2"
2697         elif check_cmd nasm -v; then
2698             yasmexe=nasm
2699             yasm_debug="-g -F dwarf"
2700             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2701         fi
2702
2703         YASMFLAGS="-f $objformat $yasm_extra"
2704         enabled pic               && append YASMFLAGS "-DPIC"
2705         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2706         case "$objformat" in
2707             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2708         esac
2709
2710         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2711             die "yasm not found, use --disable-yasm for a crippled build"
2712         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2713     fi
2714
2715     case "$cpu" in
2716         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2717             disable fast_clz
2718         ;;
2719     esac
2720
2721 fi
2722
2723 if enabled asm; then
2724     as=${gas:=$as}
2725     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2726         $nogas "GNU assembler not found, install gas-preprocessor"
2727 fi
2728
2729 check_ldflags -Wl,--as-needed
2730
2731 if check_func dlopen; then
2732     ldl=
2733 elif check_func dlopen -ldl; then
2734     ldl=-ldl
2735 fi
2736
2737 if enabled network; then
2738     check_type "sys/types.h sys/socket.h" socklen_t
2739     check_type netdb.h "struct addrinfo"
2740     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2741     check_type netinet/in.h "struct sockaddr_in6"
2742     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2743     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2744     # Prefer arpa/inet.h over winsock2
2745     if check_header arpa/inet.h ; then
2746         check_func closesocket
2747     elif check_header winsock2.h ; then
2748         check_func_headers winsock2.h closesocket -lws2 && \
2749             network_extralibs="-lws2" || \
2750         { check_func_headers winsock2.h closesocket -lws2_32 && \
2751             network_extralibs="-lws2_32"; }
2752         check_type ws2tcpip.h socklen_t
2753         check_type ws2tcpip.h "struct addrinfo"
2754         check_type ws2tcpip.h "struct ipv6_mreq"
2755         check_type ws2tcpip.h "struct sockaddr_in6"
2756         check_type ws2tcpip.h "struct sockaddr_storage"
2757         check_struct winsock2.h "struct sockaddr" sa_len
2758     else
2759         disable network
2760     fi
2761 fi
2762
2763 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2764 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2765
2766 check_func  fcntl
2767 check_func  fork
2768 check_func  getaddrinfo $network_extralibs
2769 check_func  gethrtime
2770 check_func  getrusage
2771 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2772 check_func  inet_aton $network_extralibs
2773 check_func  isatty
2774 check_func  ${malloc_prefix}memalign            && enable memalign
2775 check_func  mkstemp
2776 check_func  mmap
2777 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2778 check_func  setrlimit
2779 check_func  strerror_r
2780 check_func  strtok_r
2781 check_func_headers conio.h kbhit
2782 check_func_headers io.h setmode
2783 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2784 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2785 check_func_headers windows.h GetProcessTimes
2786 check_func_headers windows.h MapViewOfFile
2787 check_func_headers windows.h VirtualAlloc
2788
2789 check_header dlfcn.h
2790 check_header dxva2api.h
2791 check_header malloc.h
2792 check_header poll.h
2793 check_header sys/mman.h
2794 check_header sys/resource.h
2795 check_header sys/select.h
2796 check_header vdpau/vdpau.h
2797 check_header vdpau/vdpau_x11.h
2798 check_header X11/extensions/XvMClib.h
2799
2800 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2801
2802 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2803      enabled_any $need_memalign ; then
2804     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2805 fi
2806
2807 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2808 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2809
2810 # check for some common methods of building with pthread support
2811 # do this before the optional library checks as some of them require pthreads
2812 if ! disabled pthreads && ! enabled w32threads; then
2813     enable pthreads
2814     if check_func pthread_create; then
2815         :
2816     elif check_func pthread_create -pthread; then
2817         add_cflags -pthread
2818         add_extralibs -pthread
2819     elif check_func pthread_create -pthreads; then
2820         add_cflags -pthreads
2821         add_extralibs -pthreads
2822     elif check_func pthread_create -lpthreadGC2; then
2823         add_extralibs -lpthreadGC2
2824     elif ! check_lib pthread.h pthread_create -lpthread; then
2825         disable pthreads
2826     fi
2827 fi
2828
2829 for thread in $THREADS_LIST; do
2830     if enabled $thread; then
2831         test -n "$thread_type" &&
2832             die "ERROR: Only one thread type must be selected." ||
2833             thread_type="$thread"
2834     fi
2835 done
2836
2837 check_lib math.h sin -lm
2838 disabled vaapi || check_lib va/va.h vaInitialize -lva
2839
2840 check_mathfunc exp2
2841 check_mathfunc exp2f
2842 check_mathfunc llrint
2843 check_mathfunc llrintf
2844 check_mathfunc log2
2845 check_mathfunc log2f
2846 check_mathfunc lrint
2847 check_mathfunc lrintf
2848 check_mathfunc round
2849 check_mathfunc roundf
2850 check_mathfunc truncf
2851
2852 # these are off by default, so fail if requested and not available
2853 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2854 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2855 enabled libdirac   && require_pkg_config dirac                          \
2856     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2857     "dirac_decoder_init dirac_encoder_init"
2858 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2859 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2860 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2861 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2862 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2863 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2864 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2865 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2866 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2867 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2868 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2869 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2870 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2871 enabled libvpx     && {
2872     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2873                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2874     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2875                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2876 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2877                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2878                         die "ERROR: libx264 version must be >= 0.99."; }
2879 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2880 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2881 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2882
2883 # libdc1394 check
2884 if enabled libdc1394; then
2885     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2886         enable libdc1394_2; } ||
2887     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2888         enable libdc1394_1; } ||
2889     die "ERROR: No version of libdc1394 found "
2890 fi
2891
2892 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2893     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2894     enable sdl &&
2895     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2896 fi
2897
2898 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2899
2900 check_header linux/videodev.h
2901 check_header linux/videodev2.h
2902 check_header sys/videoio.h
2903
2904 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2905 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2906 # w32api 3.12 had it defined wrong
2907 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2908
2909 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2910 { check_header dev/bktr/ioctl_meteor.h &&
2911   check_header dev/bktr/ioctl_bt848.h; } ||
2912 { check_header machine/ioctl_meteor.h &&
2913   check_header machine/ioctl_bt848.h; } ||
2914 { check_header dev/video/meteor/ioctl_meteor.h &&
2915   check_header dev/video/bktr/ioctl_bt848.h; } ||
2916 check_header dev/ic/bt8xx.h
2917
2918 check_header sndio.h
2919 check_header sys/soundcard.h
2920 check_header soundcard.h
2921
2922 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2923
2924 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2925
2926 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2927
2928 enabled x11grab                         &&
2929 check_header X11/Xlib.h                 &&
2930 check_header X11/extensions/XShm.h      &&
2931 check_header X11/extensions/Xfixes.h    &&
2932 check_func XOpenDisplay -lX11           &&
2933 check_func XShmCreateImage -lX11 -lXext &&
2934 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2935
2936 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2937 check_cpp_condition \
2938     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2939     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2940       disable vdpau; }
2941 fi
2942
2943 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2944
2945 # add some useful compiler flags if supported
2946 check_cflags -Wdeclaration-after-statement
2947 check_cflags -Wall
2948 check_cflags -Wno-parentheses
2949 check_cflags -Wno-switch
2950 check_cflags -Wdisabled-optimization
2951 check_cflags -Wpointer-arith
2952 check_cflags -Wredundant-decls
2953 check_cflags -Wno-pointer-sign
2954 check_cflags -Wcast-qual
2955 check_cflags -Wwrite-strings
2956 check_cflags -Wtype-limits
2957 check_cflags -Wundef
2958 check_cflags -Wmissing-prototypes
2959 enabled extra_warnings && check_cflags -Winline
2960
2961 # add some linker flags
2962 check_ldflags -Wl,--warn-common
2963 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'
2964 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2965
2966 echo "X{};" > $TMPV
2967 if test_ldflags -Wl,--version-script,$TMPV; then
2968     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2969     check_cc <<EOF && enable symver_asm_label
2970 void ff_foo(void) __asm__ ("av_foo@VERSION");
2971 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2972 EOF
2973     check_cc <<EOF && enable symver_gnu_asm
2974 __asm__(".symver ff_foo,av_foo@VERSION");
2975 void ff_foo(void) {}
2976 EOF
2977 fi
2978
2979 if enabled small; then
2980     add_cflags $size_cflags
2981     optimizations="small"
2982 elif enabled optimizations; then
2983     add_cflags $speed_cflags
2984 else
2985     add_cflags $noopt_cflags
2986 fi
2987 check_cflags -fno-math-errno
2988 check_cflags -fno-signed-zeros
2989
2990 if enabled icc; then
2991     # Just warnings, no remarks
2992     check_cflags -w1
2993     # -wd: Disable following warnings
2994     # 144, 167, 556: -Wno-pointer-sign
2995     # 1292: attribute "foo" ignored
2996     # 10006: ignoring unknown option -fno-signed-zeros
2997     # 10148: ignoring unknown option -Wno-parentheses
2998     # 10156: ignoring option '-W'; no argument required
2999     check_cflags -wd144,167,556,1292,10006,10148,10156
3000     # 11030: Warning unknown option --as-needed
3001     # 10156: ignoring option '-export'; no argument required
3002     check_ldflags -wd10156,11030
3003     # Allow to compile with optimizations
3004     check_ldflags -march=$cpu
3005     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3006     enable ebp_available
3007     if enabled x86_32; then
3008         test ${icc_version%%.*} -ge 11 && \
3009             check_cflags -falign-stack=maintain-16-byte || \
3010             disable aligned_stack
3011     fi
3012 elif enabled ccc; then
3013     # disable some annoying warnings
3014     add_cflags -msg_disable cvtu32to64
3015     add_cflags -msg_disable embedcomment
3016     add_cflags -msg_disable needconstext
3017     add_cflags -msg_disable nomainieee
3018     add_cflags -msg_disable ptrmismatch1
3019     add_cflags -msg_disable unreachcode
3020 elif enabled gcc; then
3021     check_cflags -fno-tree-vectorize
3022     check_cflags -Werror=implicit-function-declaration
3023     check_cflags -Werror=missing-prototypes
3024 elif enabled llvm_gcc; then
3025     check_cflags -mllvm -stack-alignment=16
3026 elif enabled clang; then
3027     check_cflags -mllvm -stack-alignment=16
3028     check_cflags -Qunused-arguments
3029 elif enabled armcc; then
3030     # 2523: use of inline assembler is deprecated
3031     add_cflags -W${armcc_opt},--diag_suppress=2523
3032     add_cflags -W${armcc_opt},--diag_suppress=1207
3033     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3034     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3035 elif enabled tms470; then
3036     add_cflags -pds=824 -pds=837
3037 elif enabled pathscale; then
3038     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3039 fi
3040
3041 enabled_any $THREADS_LIST      && enable threads
3042
3043 check_deps $CONFIG_LIST       \
3044            $CONFIG_EXTRA      \
3045            $HAVE_LIST         \
3046            $DECODER_LIST      \
3047            $ENCODER_LIST      \
3048            $HWACCEL_LIST      \
3049            $PARSER_LIST       \
3050            $BSF_LIST          \
3051            $DEMUXER_LIST      \
3052            $MUXER_LIST        \
3053            $FILTER_LIST       \
3054            $INDEV_LIST        \
3055            $OUTDEV_LIST       \
3056            $PROTOCOL_LIST     \
3057            $ACODEC_TESTS      \
3058            $VCODEC_TESTS      \
3059            $LAVF_TESTS        \
3060            $LAVFI_TESTS       \
3061            $SEEK_TESTS        \
3062
3063 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3064
3065 echo "install prefix            $prefix"
3066 echo "source path               $source_path"
3067 echo "C compiler                $cc"
3068 echo "ARCH                      $arch ($cpu)"
3069 if test "$build_suffix" != ""; then
3070     echo "build suffix              $build_suffix"
3071 fi
3072 if test "$extra_version" != ""; then
3073     echo "version string suffix     $extra_version"
3074 fi
3075 echo "big-endian                ${bigendian-no}"
3076 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3077 if enabled x86; then
3078     echo "yasm                      ${yasm-no}"
3079     echo "MMX enabled               ${mmx-no}"
3080     echo "MMX2 enabled              ${mmx2-no}"
3081     echo "3DNow! enabled            ${amd3dnow-no}"
3082     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3083     echo "SSE enabled               ${sse-no}"
3084     echo "SSSE3 enabled             ${ssse3-no}"
3085     echo "CMOV enabled              ${cmov-no}"
3086     echo "CMOV is fast              ${fast_cmov-no}"
3087     echo "EBX available             ${ebx_available-no}"
3088     echo "EBP available             ${ebp_available-no}"
3089     echo "10 operands supported     ${ten_operands-no}"
3090 fi
3091 if enabled arm; then
3092     echo "ARMv5TE enabled           ${armv5te-no}"
3093     echo "ARMv6 enabled             ${armv6-no}"
3094     echo "ARMv6T2 enabled           ${armv6t2-no}"
3095     echo "ARM VFP enabled           ${armvfp-no}"
3096     echo "IWMMXT enabled            ${iwmmxt-no}"
3097     echo "NEON enabled              ${neon-no}"
3098 fi
3099 if enabled mips; then
3100     echo "MMI enabled               ${mmi-no}"
3101 fi
3102 if enabled ppc; then
3103     echo "AltiVec enabled           ${altivec-no}"
3104     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3105     echo "dcbzl available           ${dcbzl-no}"
3106 fi
3107 if enabled sparc; then
3108     echo "VIS enabled               ${vis-no}"
3109 fi
3110 echo "debug symbols             ${debug-no}"
3111 echo "strip symbols             ${stripping-no}"
3112 echo "optimizations             ${optimizations-no}"
3113 echo "static                    ${static-no}"
3114 echo "shared                    ${shared-no}"
3115 echo "postprocessing support    ${postproc-no}"
3116 echo "new filter support        ${avfilter-no}"
3117 echo "network support           ${network-no}"
3118 echo "threading support         ${thread_type-no}"
3119 echo "SDL support               ${sdl-no}"
3120 echo "Sun medialib support      ${mlib-no}"
3121 echo "AVISynth enabled          ${avisynth-no}"
3122 echo "frei0r enabled            ${frei0r-no}"
3123 echo "libdc1394 support         ${libdc1394-no}"
3124 echo "libdirac enabled          ${libdirac-no}"
3125 echo "libfaac enabled           ${libfaac-no}"
3126 echo "libgsm enabled            ${libgsm-no}"
3127 echo "libmp3lame enabled        ${libmp3lame-no}"
3128 echo "libnut enabled            ${libnut-no}"
3129 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3130 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3131 echo "libopencv support         ${libopencv-no}"
3132 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3133 echo "librtmp enabled           ${librtmp-no}"
3134 echo "libschroedinger enabled   ${libschroedinger-no}"
3135 echo "libspeex enabled          ${libspeex-no}"
3136 echo "libtheora enabled         ${libtheora-no}"
3137 echo "libvorbis enabled         ${libvorbis-no}"
3138 echo "libvpx enabled            ${libvpx-no}"
3139 echo "libx264 enabled           ${libx264-no}"
3140 echo "libxavs enabled           ${libxavs-no}"
3141 echo "libxvid enabled           ${libxvid-no}"
3142 echo "zlib enabled              ${zlib-no}"
3143 echo "bzlib enabled             ${bzlib-no}"
3144 echo
3145
3146 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3147     echo "Enabled ${type}s:"
3148     eval list=\$$(toupper $type)_LIST
3149     print_enabled '_*' $list | sort | pr -r -3 -t
3150     echo
3151 done
3152
3153 license="LGPL version 2.1 or later"
3154 if enabled nonfree; then
3155     license="nonfree and unredistributable"
3156 elif enabled gplv3; then
3157     license="GPL version 3 or later"
3158 elif enabled lgplv3; then
3159     license="LGPL version 3 or later"
3160 elif enabled gpl; then
3161     license="GPL version 2 or later"
3162 fi
3163
3164 echo "License: $license"
3165
3166 echo "Creating config.mak and config.h..."
3167
3168 # build tree in object directory if source path is different from current one
3169 if enabled source_path_used; then
3170     DIRS="
3171         doc
3172         libavcodec
3173         libavcodec/$arch
3174         libavdevice
3175         libavfilter
3176         libavfilter/$arch
3177         libavformat
3178         libavutil
3179         libavutil/$arch
3180         libpostproc
3181         libswscale
3182         libswscale/$arch
3183         tests
3184         tools
3185     "
3186     FILES="
3187         Makefile
3188         common.mak
3189         subdir.mak
3190         doc/texi2pod.pl
3191         libavcodec/Makefile
3192         libavcodec/${arch}/Makefile
3193         libavdevice/Makefile
3194         libavfilter/Makefile
3195         libavfilter/${arch}/Makefile
3196         libavformat/Makefile
3197         libavutil/Makefile
3198         libpostproc/Makefile
3199         libswscale/Makefile
3200     "
3201     map 'mkdir -p $v' $DIRS;
3202     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3203 fi
3204
3205 enabled stripping || strip="echo skipping strip"
3206
3207 config_files="$TMPH config.mak"
3208
3209 cat > config.mak <<EOF
3210 # Automatically generated by configure - do not modify!
3211 ifndef LIBAV_CONFIG_MAK
3212 LIBAV_CONFIG_MAK=1
3213 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3214 prefix=$prefix
3215 LIBDIR=\$(DESTDIR)$libdir
3216 SHLIBDIR=\$(DESTDIR)$shlibdir
3217 INCDIR=\$(DESTDIR)$incdir
3218 BINDIR=\$(DESTDIR)$bindir
3219 DATADIR=\$(DESTDIR)$datadir
3220 MANDIR=\$(DESTDIR)$mandir
3221 SRC_PATH="$source_path"
3222 SRC_PATH_BARE=$source_path
3223 BUILD_ROOT="$PWD"
3224 CC_IDENT=$cc_ident
3225 ARCH=$arch
3226 CC=$cc
3227 AS=$as
3228 LD=$ld
3229 DEPCC=$dep_cc
3230 YASM=$yasmexe
3231 YASMDEP=$yasmexe
3232 AR=$ar
3233 RANLIB=$ranlib
3234 CP=cp -p
3235 LN_S=$ln_s
3236 STRIP=$strip
3237 CPPFLAGS=$CPPFLAGS
3238 CFLAGS=$CFLAGS
3239 ASFLAGS=$ASFLAGS
3240 CC_O=$CC_O
3241 DLLTOOL=$dlltool
3242 LDFLAGS=$LDFLAGS
3243 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3244 SHFLAGS=$SHFLAGS
3245 YASMFLAGS=$YASMFLAGS
3246 BUILDSUF=$build_suffix
3247 FULLNAME=$FULLNAME
3248 LIBPREF=$LIBPREF
3249 LIBSUF=$LIBSUF
3250 LIBNAME=$LIBNAME
3251 SLIBPREF=$SLIBPREF
3252 SLIBSUF=$SLIBSUF
3253 EXESUF=$EXESUF
3254 EXTRA_VERSION=$extra_version
3255 DEPFLAGS=$DEPFLAGS
3256 CCDEP=$CCDEP
3257 ASDEP=$ASDEP
3258 CC_DEPFLAGS=$CC_DEPFLAGS
3259 AS_DEPFLAGS=$AS_DEPFLAGS
3260 HOSTCC=$host_cc
3261 HOSTCFLAGS=$host_cflags
3262 HOSTEXESUF=$HOSTEXESUF
3263 HOSTLDFLAGS=$host_ldflags
3264 HOSTLIBS=$host_libs
3265 TARGET_EXEC=$target_exec
3266 TARGET_PATH=$target_path
3267 SDL_LIBS=$sdl_libs
3268 SDL_CFLAGS=$sdl_cflags
3269 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3270 EXTRALIBS=$extralibs
3271 INSTALL=install
3272 LIBTARGET=${LIBTARGET}
3273 SLIBNAME=${SLIBNAME}
3274 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3275 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3276 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3277 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3278 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3279 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3280 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3281 EOF
3282
3283 get_version(){
3284     name=$1
3285     file=$source_path/$2
3286     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3287     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3288     lcname=$(tolower $name)
3289     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3290     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3291 }
3292
3293 get_version LIBSWSCALE  libswscale/swscale.h
3294 get_version LIBPOSTPROC libpostproc/postprocess.h
3295 get_version LIBAVCODEC  libavcodec/version.h
3296 get_version LIBAVDEVICE libavdevice/avdevice.h
3297 get_version LIBAVFORMAT libavformat/version.h
3298 get_version LIBAVUTIL   libavutil/avutil.h
3299 get_version LIBAVFILTER libavfilter/avfilter.h
3300
3301 cat > $TMPH <<EOF
3302 /* Automatically generated by configure - do not modify! */
3303 #ifndef LIBAV_CONFIG_H
3304 #define LIBAV_CONFIG_H
3305 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3306 #define LIBAV_LICENSE "$(c_escape $license)"
3307 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3308 #define CC_TYPE "$cc_type"
3309 #define CC_VERSION $cc_version
3310 #define restrict $_restrict
3311 #define EXTERN_PREFIX "${extern_prefix}"
3312 #define EXTERN_ASM ${extern_prefix}
3313 #define SLIBSUF "$SLIBSUF"
3314 EOF
3315
3316 test -n "$malloc_prefix" &&
3317     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3318
3319 if enabled small || disabled optimizations; then
3320     echo "#undef  av_always_inline"  >> $TMPH
3321     if enabled small; then
3322         echo "#define av_always_inline inline"  >> $TMPH
3323     else
3324         echo "#define av_always_inline av_unused"  >> $TMPH
3325     fi
3326 fi
3327
3328 if enabled yasm; then
3329     append config_files $TMPASM
3330     printf '' >$TMPASM
3331 fi
3332
3333 print_config ARCH_   "$config_files" $ARCH_LIST
3334 print_config HAVE_   "$config_files" $HAVE_LIST
3335 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3336                                      $CONFIG_EXTRA      \
3337                                      $DECODER_LIST      \
3338                                      $ENCODER_LIST      \
3339                                      $HWACCEL_LIST      \
3340                                      $PARSER_LIST       \
3341                                      $BSF_LIST          \
3342                                      $DEMUXER_LIST      \
3343                                      $MUXER_LIST        \
3344                                      $FILTER_LIST       \
3345                                      $PROTOCOL_LIST     \
3346                                      $INDEV_LIST        \
3347                                      $OUTDEV_LIST       \
3348
3349 cat >>config.mak <<EOF
3350 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3351 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3352 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3353 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3354 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3355 EOF
3356
3357 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3358 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3359
3360 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3361 cp_if_changed $TMPH config.h
3362 touch .config
3363
3364 enabled yasm && cp_if_changed $TMPASM config.asm
3365
3366 cat > $TMPH <<EOF
3367 /* Generated by ffconf */
3368 #ifndef AVUTIL_AVCONFIG_H
3369 #define AVUTIL_AVCONFIG_H
3370 EOF
3371
3372 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3373
3374 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3375
3376 cp_if_changed $TMPH libavutil/avconfig.h
3377
3378 test -n "$WARNINGS" && printf "\n$WARNINGS"
3379
3380 # build pkg-config files
3381
3382 pkgconfig_generate(){
3383 name=$1
3384 shortname=${name#lib}${build_suffix}
3385 comment=$2
3386 version=$3
3387 libs=$4
3388 requires=$5
3389 enabled ${name#lib} || return 0
3390 cat <<EOF > $name/$name.pc
3391 prefix=$prefix
3392 exec_prefix=\${prefix}
3393 libdir=$libdir
3394 includedir=$incdir
3395
3396 Name: $name
3397 Description: $comment
3398 Version: $version
3399 Requires: $(enabled shared || echo $requires)
3400 Requires.private: $(enabled shared && echo $requires)
3401 Conflicts:
3402 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3403 Libs.private: $(enabled shared && echo $libs)
3404 Cflags: -I\${includedir}
3405 EOF
3406 cat <<EOF > $name/$name-uninstalled.pc
3407 prefix=
3408 exec_prefix=
3409 libdir=\${pcfiledir}
3410 includedir=${source_path}
3411
3412 Name: $name
3413 Description: $comment
3414 Version: $version
3415 Requires: $requires
3416 Conflicts:
3417 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3418 Cflags: -I\${includedir}
3419 EOF
3420 }
3421
3422 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
3423 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3424 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3425 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3426 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3427 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION"
3428 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"