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-avplay         disable avplay build
  85   --disable-avprobe        disable avprobe build
  86   --disable-avserver       disable avserver 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   --disable-postproc       disable libpostproc build
  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   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-frei0r          enable frei0r video filtering
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libopencv       enable video filtering via libopencv [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libfreetype     enable libfreetype [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-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240   --optflags               override optimization-related compiler flags
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 879     mkdir -p "$(dirname $2)"
 880     cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     avplay
 917     avprobe
 918     avserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvo_aacenc
 944     libvo_amrwbenc
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudiodsp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     thumb
 971     vaapi
 972     vdpau
 973     version3
 974     x11grab
 975     zlib
 976 "
 977
 978 THREADS_LIST='
 979     pthreads
 980     w32threads
 981 '
 982
 983 ARCH_LIST='
 984     alpha
 985     arm
 986     avr32
 987     avr32_ap
 988     avr32_uc
 989     bfin
 990     ia64
 991     m68k
 992     mips
 993     mips64
 994     parisc
 995     ppc
 996     ppc64
 997     s390
 998     sh4
 999     sparc
1000     sparc64
1001     tomi
1002     x86
1003     x86_32
1004     x86_64
1005 '
1006
1007 ARCH_EXT_LIST='
1008     altivec
1009     amd3dnow
1010     amd3dnowext
1011     armv5te
1012     armv6
1013     armv6t2
1014     armvfp
1015     avx
1016     iwmmxt
1017     mmi
1018     mmx
1019     mmx2
1020     neon
1021     ppc4xx
1022     sse
1023     ssse3
1024     vfpv3
1025     vis
1026 '
1027
1028 HAVE_LIST_PUB='
1029     bigendian
1030     fast_unaligned
1031 '
1032
1033 HAVE_LIST="
1034     $ARCH_EXT_LIST
1035     $HAVE_LIST_PUB
1036     $THREADS_LIST
1037     aligned_stack
1038     alsa_asoundlib_h
1039     altivec_h
1040     arpa_inet_h
1041     attribute_may_alias
1042     attribute_packed
1043     bswap
1044     closesocket
1045     cmov
1046     dcbzl
1047     dev_bktr_ioctl_bt848_h
1048     dev_bktr_ioctl_meteor_h
1049     dev_ic_bt8xx_h
1050     dev_video_meteor_ioctl_meteor_h
1051     dev_video_bktr_ioctl_bt848_h
1052     dlfcn_h
1053     dlopen
1054     dos_paths
1055     ebp_available
1056     ebx_available
1057     exp2
1058     exp2f
1059     fast_64bit
1060     fast_clz
1061     fast_cmov
1062     fcntl
1063     fork
1064     getaddrinfo
1065     gethrtime
1066     GetProcessMemoryInfo
1067     GetProcessTimes
1068     getrusage
1069     gnu_as
1070     struct_rusage_ru_maxrss
1071     ibm_asm
1072     inet_aton
1073     inline_asm
1074     isatty
1075     ldbrx
1076     libdc1394_1
1077     libdc1394_2
1078     llrint
1079     llrintf
1080     local_aligned_16
1081     local_aligned_8
1082     localtime_r
1083     log2
1084     log2f
1085     loongson
1086     lrint
1087     lrintf
1088     lzo1x_999_compress
1089     machine_ioctl_bt848_h
1090     machine_ioctl_meteor_h
1091     malloc_h
1092     MapViewOfFile
1093     memalign
1094     mkstemp
1095     mmap
1096     posix_memalign
1097     round
1098     roundf
1099     sdl
1100     sdl_video_size
1101     setmode
1102     sndio_h
1103     socklen_t
1104     soundcard_h
1105     poll_h
1106     setrlimit
1107     strerror_r
1108     strptime
1109     strtok_r
1110     struct_addrinfo
1111     struct_ipv6_mreq
1112     struct_sockaddr_in6
1113     struct_sockaddr_sa_len
1114     struct_sockaddr_storage
1115     symver
1116     symver_gnu_asm
1117     symver_asm_label
1118     sys_mman_h
1119     sys_resource_h
1120     sys_select_h
1121     sys_soundcard_h
1122     sys_videoio_h
1123     threads
1124     trunc
1125     truncf
1126     vfp_args
1127     VirtualAlloc
1128     winsock2_h
1129     xform_asm
1130     xmm_clobbers
1131     yasm
1132 "
1133
1134 # options emitted with CONFIG_ prefix but not available on command line
1135 CONFIG_EXTRA="
1136     avutil
1137     gplv3
1138     lgplv3
1139 "
1140
1141 CMDLINE_SELECT="
1142     $ARCH_EXT_LIST
1143     $CONFIG_LIST
1144     $THREADS_LIST
1145     asm
1146     cross_compile
1147     debug
1148     extra_warnings
1149     logging
1150     optimizations
1151     symver
1152     yasm
1153 "
1154
1155 PATHS_LIST='
1156     bindir
1157     datadir
1158     incdir
1159     libdir
1160     mandir
1161     prefix
1162     shlibdir
1163 '
1164
1165 CMDLINE_SET="
1166     $PATHS_LIST
1167     ar
1168     arch
1169     as
1170     build_suffix
1171     cc
1172     cpu
1173     cross_prefix
1174     dep_cc
1175     extra_version
1176     host_cc
1177     host_cflags
1178     host_ldflags
1179     host_libs
1180     host_os
1181     ld
1182     logfile
1183     malloc_prefix
1184     nm
1185     optflags
1186     pkg_config
1187     samples
1188     sysinclude
1189     sysroot
1190     target_exec
1191     target_os
1192     target_path
1193 "
1194
1195 CMDLINE_APPEND="
1196     extra_cflags
1197 "
1198
1199 # code dependency declarations
1200
1201 # architecture extensions
1202
1203 armv5te_deps="arm"
1204 armv6_deps="arm"
1205 armv6t2_deps="arm"
1206 armvfp_deps="arm"
1207 iwmmxt_deps="arm"
1208 neon_deps="arm"
1209 vfpv3_deps="armvfp"
1210
1211 mmi_deps="mips"
1212
1213 altivec_deps="ppc"
1214 ppc4xx_deps="ppc"
1215
1216 vis_deps="sparc"
1217
1218 x86_64_suggest="cmov fast_cmov"
1219 amd3dnow_deps="mmx"
1220 amd3dnowext_deps="amd3dnow"
1221 mmx_deps="x86"
1222 mmx2_deps="mmx"
1223 sse_deps="mmx"
1224 ssse3_deps="sse"
1225 avx_deps="ssse3"
1226
1227 aligned_stack_if_any="ppc x86"
1228 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1229 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1230 fast_unaligned_if_any="armv6 ppc x86"
1231
1232 need_memalign="altivec neon sse"
1233 inline_asm_deps="!tms470"
1234
1235 symver_if_any="symver_asm_label symver_gnu_asm"
1236
1237 # subsystems
1238 dct_select="rdft"
1239 mdct_select="fft"
1240 rdft_select="fft"
1241 mpegaudiodsp_select="dct"
1242
1243 # decoders / encoders / hardware accelerators
1244 aac_decoder_select="mdct sinewin"
1245 aac_encoder_select="mdct sinewin"
1246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1247 ac3_decoder_select="mdct ac3dsp ac3_parser"
1248 ac3_encoder_select="mdct ac3dsp"
1249 ac3_fixed_encoder_select="mdct ac3dsp"
1250 alac_encoder_select="lpc"
1251 amrnb_decoder_select="lsp"
1252 amrwb_decoder_select="lsp"
1253 atrac1_decoder_select="mdct sinewin"
1254 atrac3_decoder_select="mdct"
1255 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1256 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1257 cavs_decoder_select="golomb"
1258 cook_decoder_select="mdct sinewin"
1259 cscd_decoder_suggest="zlib"
1260 dca_decoder_select="mdct"
1261 dnxhd_encoder_select="aandct"
1262 dxa_decoder_select="zlib"
1263 eac3_decoder_select="ac3_decoder"
1264 eac3_encoder_select="mdct ac3dsp"
1265 eamad_decoder_select="aandct"
1266 eatgq_decoder_select="aandct"
1267 eatqi_decoder_select="aandct"
1268 ffv1_decoder_select="golomb"
1269 flac_decoder_select="golomb"
1270 flac_encoder_select="golomb lpc"
1271 flashsv_decoder_select="zlib"
1272 flashsv_encoder_select="zlib"
1273 flashsv2_decoder_select="zlib"
1274 flv_decoder_select="h263_decoder"
1275 flv_encoder_select="h263_encoder"
1276 fraps_decoder_select="huffman"
1277 h261_encoder_select="aandct"
1278 h263_decoder_select="h263_parser"
1279 h263_encoder_select="aandct"
1280 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1281 h263i_decoder_select="h263_decoder"
1282 h263p_encoder_select="h263_encoder"
1283 h264_decoder_select="golomb h264dsp h264pred"
1284 h264_dxva2_hwaccel_deps="dxva2api_h"
1285 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1286 h264_vaapi_hwaccel_select="vaapi"
1287 h264_vdpau_decoder_select="vdpau h264_decoder"
1288 imc_decoder_select="fft mdct sinewin"
1289 jpegls_decoder_select="golomb"
1290 jpegls_encoder_select="golomb"
1291 ljpeg_encoder_select="aandct"
1292 loco_decoder_select="golomb"
1293 mjpeg_encoder_select="aandct"
1294 mlp_decoder_select="mlp_parser"
1295 mp1_decoder_select="mpegaudiodsp"
1296 mp2_decoder_select="mpegaudiodsp"
1297 mp3adu_decoder_select="mpegaudiodsp"
1298 mp3_decoder_select="mpegaudiodsp"
1299 mp3on4_decoder_select="mpegaudiodsp"
1300 mp1float_decoder_select="mpegaudiodsp"
1301 mp2float_decoder_select="mpegaudiodsp"
1302 mp3adufloat_decoder_select="mpegaudiodsp"
1303 mp3float_decoder_select="mpegaudiodsp"
1304 mp3on4float_decoder_select="mpegaudiodsp"
1305 mpeg1video_encoder_select="aandct"
1306 mpeg2video_encoder_select="aandct"
1307 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1308 mpeg4_encoder_select="h263_encoder"
1309 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1310 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1311 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1312 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1313 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1314 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1315 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1316 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1317 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1318 msmpeg4v1_decoder_select="h263_decoder"
1319 msmpeg4v1_encoder_select="h263_encoder"
1320 msmpeg4v2_decoder_select="h263_decoder"
1321 msmpeg4v2_encoder_select="h263_encoder"
1322 msmpeg4v3_decoder_select="h263_decoder"
1323 msmpeg4v3_encoder_select="h263_encoder"
1324 nellymoser_decoder_select="mdct sinewin"
1325 nellymoser_encoder_select="mdct sinewin"
1326 png_decoder_select="zlib"
1327 png_encoder_select="zlib"
1328 qcelp_decoder_select="lsp"
1329 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1330 ra_144_encoder_select="lpc"
1331 rv10_decoder_select="h263_decoder"
1332 rv10_encoder_select="h263_encoder"
1333 rv20_decoder_select="h263_decoder"
1334 rv20_encoder_select="h263_encoder"
1335 rv30_decoder_select="golomb h264pred"
1336 rv40_decoder_select="golomb h264pred"
1337 shorten_decoder_select="golomb"
1338 sipr_decoder_select="lsp"
1339 snow_decoder_select="dwt"
1340 snow_encoder_select="aandct dwt"
1341 svq1_encoder_select="aandct"
1342 svq3_decoder_select="golomb h264dsp h264pred"
1343 svq3_decoder_suggest="zlib"
1344 theora_decoder_select="vp3_decoder"
1345 tiff_decoder_suggest="zlib"
1346 tiff_encoder_suggest="zlib"
1347 truehd_decoder_select="mlp_decoder"
1348 tscc_decoder_select="zlib"
1349 twinvq_decoder_select="mdct lsp sinewin"
1350 vc1_decoder_select="h263_decoder"
1351 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1352 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1353 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1354 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1355 vorbis_decoder_select="mdct"
1356 vorbis_encoder_select="mdct"
1357 vp6_decoder_select="huffman"
1358 vp6a_decoder_select="vp6_decoder"
1359 vp6f_decoder_select="vp6_decoder"
1360 vp8_decoder_select="h264pred"
1361 wmapro_decoder_select="mdct sinewin"
1362 wmav1_decoder_select="mdct sinewin"
1363 wmav1_encoder_select="mdct sinewin"
1364 wmav2_decoder_select="mdct sinewin"
1365 wmav2_encoder_select="mdct sinewin"
1366 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1367 wmv1_decoder_select="h263_decoder"
1368 wmv1_encoder_select="h263_encoder"
1369 wmv2_decoder_select="h263_decoder"
1370 wmv2_encoder_select="h263_encoder"
1371 wmv3_decoder_select="vc1_decoder"
1372 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1373 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1374 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1375 zlib_decoder_select="zlib"
1376 zlib_encoder_select="zlib"
1377 zmbv_decoder_select="zlib"
1378 zmbv_encoder_select="zlib"
1379
1380 vaapi_deps="va_va_h"
1381 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1382
1383 # parsers
1384 h264_parser_select="golomb h264dsp h264pred"
1385
1386 # external libraries
1387 libdirac_decoder_deps="libdirac !libschroedinger"
1388 libdirac_encoder_deps="libdirac"
1389 libfaac_encoder_deps="libfaac"
1390 libgsm_decoder_deps="libgsm"
1391 libgsm_encoder_deps="libgsm"
1392 libgsm_ms_decoder_deps="libgsm"
1393 libgsm_ms_encoder_deps="libgsm"
1394 libmp3lame_encoder_deps="libmp3lame"
1395 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1396 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1397 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1398 libopenjpeg_decoder_deps="libopenjpeg"
1399 libschroedinger_decoder_deps="libschroedinger"
1400 libschroedinger_encoder_deps="libschroedinger"
1401 libspeex_decoder_deps="libspeex"
1402 libtheora_encoder_deps="libtheora"
1403 libvo_aacenc_encoder_deps="libvo_aacenc"
1404 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1405 libvorbis_encoder_deps="libvorbis"
1406 libvpx_decoder_deps="libvpx"
1407 libvpx_encoder_deps="libvpx"
1408 libx264_encoder_deps="libx264"
1409 libxavs_encoder_deps="libxavs"
1410 libxvid_encoder_deps="libxvid"
1411
1412 # demuxers / muxers
1413 ac3_demuxer_select="ac3_parser"
1414 asf_stream_muxer_select="asf_muxer"
1415 avisynth_demuxer_deps="avisynth"
1416 dirac_demuxer_select="dirac_parser"
1417 eac3_demuxer_select="ac3_parser"
1418 flac_demuxer_select="flac_parser"
1419 ipod_muxer_select="mov_muxer"
1420 libnut_demuxer_deps="libnut"
1421 libnut_muxer_deps="libnut"
1422 matroska_audio_muxer_select="matroska_muxer"
1423 matroska_demuxer_suggest="zlib bzlib"
1424 mov_demuxer_suggest="zlib"
1425 mp3_demuxer_select="mpegaudio_parser"
1426 mp4_muxer_select="mov_muxer"
1427 mpegtsraw_demuxer_select="mpegts_demuxer"
1428 mxf_d10_muxer_select="mxf_muxer"
1429 ogg_demuxer_select="golomb"
1430 psp_muxer_select="mov_muxer"
1431 rtp_demuxer_select="sdp_demuxer"
1432 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1433 rtsp_demuxer_select="http_protocol rtpdec"
1434 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1435 sap_demuxer_select="sdp_demuxer"
1436 sap_muxer_select="rtp_muxer rtp_protocol"
1437 sdp_demuxer_select="rtpdec"
1438 spdif_muxer_select="aac_parser"
1439 tg2_muxer_select="mov_muxer"
1440 tgp_muxer_select="mov_muxer"
1441 w64_demuxer_deps="wav_demuxer"
1442
1443 # indevs / outdevs
1444 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1445 alsa_outdev_deps="alsa_asoundlib_h"
1446 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1447 dv1394_indev_deps="dv1394 dv_demuxer"
1448 fbdev_indev_deps="linux_fb_h"
1449 jack_indev_deps="jack_jack_h"
1450 libdc1394_indev_deps="libdc1394"
1451 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1452 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1453 sndio_indev_deps="sndio_h"
1454 sndio_outdev_deps="sndio_h"
1455 v4l_indev_deps="linux_videodev_h"
1456 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1457 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1458 vfwcap_indev_extralibs="-lavicap32"
1459 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1460 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1461
1462 # protocols
1463 gopher_protocol_deps="network"
1464 http_protocol_deps="network"
1465 http_protocol_select="tcp_protocol"
1466 mmsh_protocol_select="http_protocol"
1467 mmst_protocol_deps="network"
1468 rtmp_protocol_select="tcp_protocol"
1469 rtp_protocol_select="udp_protocol"
1470 tcp_protocol_deps="network"
1471 udp_protocol_deps="network"
1472
1473 # filters
1474 blackframe_filter_deps="gpl"
1475 cropdetect_filter_deps="gpl"
1476 drawtext_filter_deps="libfreetype"
1477 frei0r_filter_deps="frei0r dlopen strtok_r"
1478 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1479 hqdn3d_filter_deps="gpl"
1480 ocv_filter_deps="libopencv"
1481 scale_filter_deps="swscale"
1482 yadif_filter_deps="gpl"
1483
1484 # libraries
1485 avdevice_deps="avcodec avformat"
1486 avformat_deps="avcodec"
1487 postproc_deps="gpl"
1488
1489 # programs
1490 ffmpeg_deps="avcodec avformat swscale"
1491 ffmpeg_select="buffer_filter"
1492 avplay_deps="avcodec avformat swscale sdl"
1493 avplay_select="rdft"
1494 avprobe_deps="avcodec avformat"
1495 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1496 avserver_extralibs='$ldl'
1497
1498 doc_deps="texi2html"
1499
1500 # tests
1501
1502 test_deps(){
1503     suf1=$1
1504     suf2=$2
1505     shift 2
1506     for v; do
1507         dep=${v%=*}
1508         tests=${v#*=}
1509         for name in ${tests}; do
1510             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1511         done
1512     done
1513 }
1514
1515 test_deps _encoder _decoder                                             \
1516     adpcm_g726=g726                                                     \
1517     adpcm_ima_qt                                                        \
1518     adpcm_ima_wav                                                       \
1519     adpcm_ms                                                            \
1520     adpcm_swf                                                           \
1521     adpcm_yamaha=adpcm_yam                                              \
1522     alac                                                                \
1523     asv1                                                                \
1524     asv2                                                                \
1525     bmp                                                                 \
1526     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1527     dvvideo="dv dv50"                                                   \
1528     ffv1                                                                \
1529     flac                                                                \
1530     flashsv                                                             \
1531     flv                                                                 \
1532     gif                                                                 \
1533     h261                                                                \
1534     h263="h263 h263p"                                                   \
1535     huffyuv                                                             \
1536     jpegls                                                              \
1537     mjpeg="jpg mjpeg ljpeg"                                             \
1538     mp2                                                                 \
1539     mpeg1video="mpeg mpeg1b"                                            \
1540     mpeg2video="mpeg2 mpeg2thread"                                      \
1541     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1542     msmpeg4v3=msmpeg4                                                   \
1543     msmpeg4v2                                                           \
1544     pbm=pbmpipe                                                         \
1545     pcx                                                                 \
1546     pgm="pgm pgmpipe"                                                   \
1547     png                                                                 \
1548     ppm="ppm ppmpipe"                                                   \
1549     rawvideo="rgb yuv"                                                  \
1550     roq                                                                 \
1551     rv10                                                                \
1552     rv20                                                                \
1553     sgi                                                                 \
1554     snow="snow snowll"                                                  \
1555     svq1                                                                \
1556     targa=tga                                                           \
1557     tiff                                                                \
1558     wmav1                                                               \
1559     wmav2                                                               \
1560     wmv1                                                                \
1561     wmv2                                                                \
1562
1563 test_deps _muxer _demuxer                                               \
1564     aiff                                                                \
1565     pcm_alaw=alaw                                                       \
1566     asf                                                                 \
1567     au                                                                  \
1568     avi                                                                 \
1569     dv=dv_fmt                                                           \
1570     ffm                                                                 \
1571     flv=flv_fmt                                                         \
1572     gxf                                                                 \
1573     matroska=mkv                                                        \
1574     mmf                                                                 \
1575     mov                                                                 \
1576     pcm_mulaw=mulaw                                                     \
1577     mxf="mxf mxf_d10"                                                   \
1578     nut                                                                 \
1579     ogg                                                                 \
1580     rawvideo=pixfmt                                                     \
1581     rm                                                                  \
1582     swf                                                                 \
1583     mpegts=ts                                                           \
1584     voc                                                                 \
1585     wav                                                                 \
1586     yuv4mpegpipe=yuv4mpeg                                               \
1587
1588 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1589 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1590
1591 # default parameters
1592
1593 logfile="config.log"
1594
1595 # installation paths
1596 prefix_default="/usr/local"
1597 bindir_default='${prefix}/bin'
1598 datadir_default='${prefix}/share/ffmpeg'
1599 incdir_default='${prefix}/include'
1600 libdir_default='${prefix}/lib'
1601 mandir_default='${prefix}/share/man'
1602 shlibdir_default="$libdir_default"
1603
1604 # toolchain
1605 ar_default="ar"
1606 cc_default="gcc"
1607 cc_version=\"unknown\"
1608 host_cc_default="gcc"
1609 ln_s="ln -sf"
1610 nm_default="nm"
1611 objformat="elf"
1612 pkg_config_default=pkg-config
1613 ranlib="ranlib"
1614 yasmexe="yasm"
1615 nogas=":"
1616
1617 nm_opts='-g'
1618
1619 # machine
1620 arch_default=$(uname -m)
1621 cpu="generic"
1622
1623 # OS
1624 target_os_default=$(tolower $(uname -s))
1625 host_os=$target_os_default
1626
1627 # configurable options
1628 enable avcodec
1629 enable avdevice
1630 enable avfilter
1631 enable avformat
1632 enable avutil
1633 enable asm
1634 enable debug
1635 enable doc
1636 enable fastdiv
1637 enable ffmpeg
1638 enable avplay
1639 enable avprobe
1640 enable avserver
1641 enable network
1642 enable optimizations
1643 enable postproc
1644 enable protocols
1645 enable static
1646 enable swscale
1647 enable swscale_alpha
1648
1649 # build settings
1650 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1651 AVSERVERLDFLAGS=-Wl,-E
1652 LIBPREF="lib"
1653 LIBSUF=".a"
1654 FULLNAME='$(NAME)$(BUILDSUF)'
1655 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1656 SLIBPREF="lib"
1657 SLIBSUF=".so"
1658 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1659 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1660 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1661 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1662 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1663 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1664
1665 AS_O='-o $@'
1666 CC_O='-o $@'
1667
1668 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1669 host_libs='-lm'
1670
1671 target_path='$(CURDIR)'
1672
1673 # since the object filename is not given with the -MM flag, the compiler
1674 # is only able to print the basename, and we must add the path ourselves
1675 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1676 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1677
1678 # find source path
1679 if test -f configure; then
1680     source_path=.
1681 else
1682     source_path=$(cd $(dirname "$0"); pwd)
1683     echo "$source_path" | grep -q '[[:blank:]]' &&
1684         die "Out of tree builds are impossible with whitespace in source path."
1685     test -e "$source_path/config.h" &&
1686         die "Out of tree builds are impossible with config.h in source dir."
1687 fi
1688
1689 for v in "$@"; do
1690     r=${v#*=}
1691     l=${v%"$r"}
1692     r=$(sh_quote "$r")
1693     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1694 done
1695
1696 find_things(){
1697     thing=$1
1698     pattern=$2
1699     file=$source_path/$3
1700     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1701 }
1702
1703 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1704 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1705 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1706 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1707 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1708 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1709 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1710 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1711 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1712 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1713 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1714
1715 find_tests(){
1716     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1717 }
1718
1719 ACODEC_TESTS=$(find_tests acodec)
1720 VCODEC_TESTS=$(find_tests vsynth1)
1721 LAVF_TESTS=$(find_tests lavf)
1722 LAVFI_TESTS=$(find_tests lavfi)
1723 SEEK_TESTS=$(find_tests seek seek_)
1724
1725 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1726
1727 for n in $COMPONENT_LIST; do
1728     v=$(toupper ${n%s})_LIST
1729     eval enable \$$v
1730     eval ${n}_if_any="\$$v"
1731 done
1732
1733 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1734
1735 die_unknown(){
1736     echo "Unknown option \"$1\"."
1737     echo "See $0 --help for available options."
1738     exit 1
1739 }
1740
1741 show_list() {
1742     suffix=_$1
1743     shift
1744     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1745     exit 0
1746 }
1747
1748 for opt do
1749     optval="${opt#*=}"
1750     case "$opt" in
1751     --extra-ldflags=*) add_ldflags $optval
1752     ;;
1753     --extra-libs=*) add_extralibs $optval
1754     ;;
1755     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1756     ;;
1757     --enable-debug=*) debuglevel="$optval"
1758     ;;
1759     --disable-everything)
1760     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1761     ;;
1762     --enable-*=*|--disable-*=*)
1763     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1764     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1765     eval list=\$$(toupper $thing)_LIST
1766     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1767     $action $(filter "$name" $list)
1768     ;;
1769     --enable-?*|--disable-?*)
1770     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1771     if is_in $option $COMPONENT_LIST; then
1772         test $action = disable && action=unset
1773         eval $action \$$(toupper ${option%s})_LIST
1774     elif is_in $option $CMDLINE_SELECT; then
1775         $action $option
1776     else
1777         die_unknown $opt
1778     fi
1779     ;;
1780     --list-*)
1781         NAME="${opt#--list-}"
1782         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1783         NAME=${NAME%s}
1784         eval show_list $NAME \$$(toupper $NAME)_LIST
1785     ;;
1786     --help|-h) show_help
1787     ;;
1788     *)
1789     optname="${opt%%=*}"
1790     optname="${optname#--}"
1791     optname=$(echo "$optname" | sed 's/-/_/g')
1792     if is_in $optname $CMDLINE_SET; then
1793         eval $optname='$optval'
1794     elif is_in $optname $CMDLINE_APPEND; then
1795         append $optname "$optval"
1796     else
1797          die_unknown $opt
1798     fi
1799     ;;
1800     esac
1801 done
1802
1803 disabled logging && logfile=/dev/null
1804
1805 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1806 set >> $logfile
1807
1808 test -n "$cross_prefix" && enable cross_compile
1809
1810 if enabled cross_compile; then
1811     test -n "$arch" && test -n "$target_os" ||
1812         die "Must specify target arch and OS when cross-compiling"
1813 fi
1814
1815 set_default arch target_os
1816
1817 ar_default="${cross_prefix}${ar_default}"
1818 cc_default="${cross_prefix}${cc_default}"
1819 nm_default="${cross_prefix}${nm_default}"
1820 pkg_config_default="${cross_prefix}${pkg_config_default}"
1821 ranlib="${cross_prefix}${ranlib}"
1822
1823 sysinclude_default="${sysroot}/usr/include"
1824
1825 set_default cc nm pkg_config sysinclude
1826 enabled cross_compile || host_cc_default=$cc
1827 set_default host_cc
1828
1829 if ! $pkg_config --version >/dev/null 2>&1; then
1830     warn "$pkg_config not found, library detection may fail."
1831     pkg_config=false
1832 fi
1833
1834 exesuf() {
1835     case $1 in
1836         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1837     esac
1838 }
1839
1840 EXESUF=$(exesuf $target_os)
1841 HOSTEXESUF=$(exesuf $host_os)
1842
1843 # set temporary file name
1844 : ${TMPDIR:=$TEMPDIR}
1845 : ${TMPDIR:=$TMP}
1846 : ${TMPDIR:=/tmp}
1847
1848 if ! check_cmd mktemp -u XXXXXX; then
1849     # simple replacement for missing mktemp
1850     # NOT SAFE FOR GENERAL USE
1851     mktemp(){
1852         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1853     }
1854 fi
1855
1856 tmpfile(){
1857     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1858         (set -C; exec > $tmp) 2>/dev/null ||
1859         die "Unable to create temporary file in $TMPDIR."
1860     append TMPFILES $tmp
1861     eval $1=$tmp
1862 }
1863
1864 trap 'rm -f -- $TMPFILES' EXIT
1865
1866 tmpfile TMPC  .c
1867 tmpfile TMPE  $EXESUF
1868 tmpfile TMPH  .h
1869 tmpfile TMPO  .o
1870 tmpfile TMPS  .S
1871 tmpfile TMPV  .ver
1872 tmpfile TMPSH .sh
1873 tmpfile TMPASM .asm
1874
1875 unset -f mktemp
1876
1877 chmod +x $TMPE
1878
1879 # make sure we can execute files in $TMPDIR
1880 cat > $TMPSH 2>> $logfile <<EOF
1881 #! /bin/sh
1882 EOF
1883 chmod +x $TMPSH >> $logfile 2>&1
1884 if ! $TMPSH >> $logfile 2>&1; then
1885     cat <<EOF
1886 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1887 variable to another directory and make sure that it is not mounted noexec.
1888 EOF
1889     die "Sanity test failed."
1890 fi
1891
1892 filter_cflags=echo
1893 filter_cppflags=echo
1894 filter_asflags=echo
1895
1896 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1897     cc_type=llvm_gcc
1898     cc_version=__VERSION__
1899     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1900     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1901     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1902     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1903     speed_cflags='-O3'
1904     size_cflags='-Os'
1905 elif $cc -v 2>&1 | grep -qi ^gcc; then
1906     cc_type=gcc
1907     cc_version=__VERSION__
1908     gcc_version=$($cc --version | head -n1)
1909     gcc_basever=$($cc -dumpversion)
1910     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1911     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1912     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1913     if ! $cc -dumpversion | grep -q '^2\.'; then
1914         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1915         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1916     fi
1917     speed_cflags='-O3'
1918     size_cflags='-Os'
1919 elif $cc --version 2>/dev/null | grep -q Intel; then
1920     cc_type=icc
1921     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1922     cc_ident=$($cc --version | head -n1)
1923     icc_version=$($cc -dumpversion)
1924     CC_DEPFLAGS='-MMD'
1925     AS_DEPFLAGS='-MMD'
1926     speed_cflags='-O3'
1927     size_cflags='-Os'
1928     noopt_cflags='-O1'
1929 elif $cc -v 2>&1 | grep -q xlc; then
1930     cc_type=xlc
1931     cc_version="AV_STRINGIFY(__IBMC__)"
1932     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1933     speed_cflags='-O5'
1934     size_cflags='-O5 -qcompact'
1935 elif $cc -V 2>/dev/null | grep -q Compaq; then
1936     cc_type=ccc
1937     cc_version="AV_STRINGIFY(__DECC_VER)"
1938     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1939     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1940     debuglevel=3
1941     add_ldflags -Wl,-z,now # calls to libots crash without this
1942     speed_cflags='-fast'
1943     size_cflags='-O1'
1944 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1945     test -d "$sysroot" || die "No valid sysroot specified."
1946     cc_type=armcc
1947     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1948     cc_ident=$($cc --vsn | head -n1)
1949     armcc_conf="$PWD/armcc.conf"
1950     $cc --arm_linux_configure                 \
1951         --arm_linux_config_file="$armcc_conf" \
1952         --configure_sysroot="$sysroot"        \
1953         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1954         die "Error creating armcc configuration file."
1955     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1956     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1957     as_default="${cross_prefix}gcc"
1958     CC_DEPFLAGS='-MMD'
1959     AS_DEPFLAGS='-MMD'
1960     speed_cflags='-O3'
1961     size_cflags='-Os'
1962     filter_asflags="filter_out -W${armcc_opt}*"
1963 elif $cc -version 2>/dev/null | grep -q TMS470; then
1964     cc_type=tms470
1965     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1966     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1967     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1968     CC_O='-fr=$(@D)'
1969     as_default="${cross_prefix}gcc"
1970     ld_default="${cross_prefix}gcc"
1971     TMPO=$(basename $TMPC .c).o
1972     append TMPFILES $TMPO
1973     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1974     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1975     AS_DEPFLAGS='-MMD'
1976     speed_cflags='-O3 -mf=5'
1977     size_cflags='-O3 -mf=2'
1978     filter_cflags=tms470_flags
1979     tms470_flags(){
1980         for flag; do
1981             case $flag in
1982                 -march=*|-mcpu=*)
1983                     case "${flag#*=}" in
1984                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1985                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1986                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1987                         armv6*|arm11*)          echo -mv=6   ;;
1988                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1989                                                 echo -mv=5e  ;;
1990                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1991                     esac
1992                     ;;
1993                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1994                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1995                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1996                 -msoft-float)   echo --float_support=vfplib       ;;
1997                 -O[0-3]|-mf=*)  echo $flag                        ;;
1998                 -g)             echo -g -mn                       ;;
1999                 -pds=*)         echo $flag                        ;;
2000             esac
2001         done
2002     }
2003 elif $cc -v 2>&1 | grep -q clang; then
2004     cc_type=clang
2005     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2006         cc_version=__clang_version__ || cc_version=__VERSION__
2007     cc_ident=$($cc --version | head -n1)
2008     CC_DEPFLAGS='-MMD'
2009     AS_DEPFLAGS='-MMD'
2010     speed_cflags='-O3'
2011     size_cflags='-Os'
2012 elif $cc -V 2>&1 | grep -q Sun; then
2013     cc_type=suncc
2014     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2015     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2016     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2017     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2018     add_ldflags -xc99
2019     speed_cflags='-O5'
2020     size_cflags='-O5 -xspace'
2021     filter_cflags=suncc_flags
2022     suncc_flags(){
2023         for flag; do
2024             case $flag in
2025                 -march=*|-mcpu=*)
2026                     case "${flag#*=}" in
2027                         native)                   echo -xtarget=native       ;;
2028                         v9|niagara)               echo -xarch=sparc          ;;
2029                         ultrasparc)               echo -xarch=sparcvis       ;;
2030                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2031                         i586|pentium)             echo -xchip=pentium        ;;
2032                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2033                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2034                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2035                         pentium4*)          echo -xtarget=pentium4           ;;
2036                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2037                         *-sse3)             echo -xarch=sse3                 ;;
2038                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2039                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2040                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2041                         k8|opteron|athlon64|athlon-fx)
2042                                                   echo -xarch=sse2a          ;;
2043                         athlon*)                  echo -xarch=pentium_proa   ;;
2044                     esac
2045                     ;;
2046                 -std=c99)             echo -xc99              ;;
2047                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2048                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2049                 -W*,*)                echo $flag              ;;
2050                 -f*-*|-W*)                                    ;;
2051                 *)                    echo $flag              ;;
2052             esac
2053         done
2054     }
2055 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2056     cc_type=pathscale
2057     cc_version=__PATHSCALE__
2058     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2059     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2060     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2061     speed_cflags='-O2'
2062     size_cflags='-Os'
2063     filter_cflags='filter_out -Wdisabled-optimization'
2064 elif $cc -v 2>&1 | grep -q Open64; then
2065     cc_type=open64
2066     cc_version=__OPEN64__
2067     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2068     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2069     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070     speed_cflags='-O2'
2071     size_cflags='-Os'
2072     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2073 fi
2074
2075 test -n "$cc_type" && enable $cc_type ||
2076     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2077
2078 : ${as_default:=$cc}
2079 : ${dep_cc_default:=$cc}
2080 : ${ld_default:=$cc}
2081 set_default ar as dep_cc ld
2082
2083 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2084 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2085
2086 add_cflags $extra_cflags
2087 add_asflags $extra_cflags
2088
2089 if test -n "$sysroot"; then
2090     case "$cc_type" in
2091         gcc|llvm_gcc|clang)
2092             add_cppflags --sysroot="$sysroot"
2093             add_ldflags --sysroot="$sysroot"
2094         ;;
2095         tms470)
2096             add_cppflags -I"$sysinclude"
2097             add_ldflags  --sysroot="$sysroot"
2098         ;;
2099     esac
2100 fi
2101
2102 if test "$cpu" = host; then
2103     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2104
2105     case "$cc_type" in
2106         gcc|llvm_gcc)
2107             check_native(){
2108                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2109                 sed -n "/cc1.*$1=/{
2110                             s/.*$1=\\([^ ]*\\).*/\\1/
2111                             p
2112                             q
2113                         }" $TMPE
2114             }
2115             cpu=$(check_native -march || check_native -mcpu)
2116         ;;
2117     esac
2118
2119     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2120 fi
2121
2122 # Deal with common $arch aliases
2123 case "$arch" in
2124     arm*)
2125         arch="arm"
2126     ;;
2127     mips|mipsel|IP*)
2128         arch="mips"
2129     ;;
2130     mips64*)
2131         arch="mips"
2132         subarch="mips64"
2133     ;;
2134     parisc|hppa)
2135         arch="parisc"
2136     ;;
2137     parisc64|hppa64)
2138         arch="parisc"
2139         subarch="parisc64"
2140     ;;
2141     "Power Macintosh"|ppc|powerpc)
2142         arch="ppc"
2143     ;;
2144     ppc64|powerpc64)
2145         arch="ppc"
2146         subarch="ppc64"
2147     ;;
2148     s390|s390x)
2149         arch="s390"
2150     ;;
2151     sh4|sh)
2152         arch="sh4"
2153     ;;
2154     sun4u|sparc64)
2155         arch="sparc"
2156         subarch="sparc64"
2157     ;;
2158     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2159         arch="x86"
2160     ;;
2161 esac
2162
2163 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2164 enable $arch
2165
2166 # Add processor-specific flags
2167 if test "$cpu" = generic; then
2168     : do nothing
2169 elif enabled ppc; then
2170
2171     case $(tolower $cpu) in
2172         601|ppc601|powerpc601)
2173             cpuflags="-mcpu=601"
2174             disable altivec
2175         ;;
2176         603*|ppc603*|powerpc603*)
2177             cpuflags="-mcpu=603"
2178             disable altivec
2179         ;;
2180         604*|ppc604*|powerpc604*)
2181             cpuflags="-mcpu=604"
2182             disable altivec
2183         ;;
2184         g3|75*|ppc75*|powerpc75*)
2185             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2186             disable altivec
2187         ;;
2188         g4|745*|ppc745*|powerpc745*)
2189             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2190         ;;
2191         74*|ppc74*|powerpc74*)
2192             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2193         ;;
2194         g5|970|ppc970|powerpc970|power4*)
2195             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2196         ;;
2197         cell)
2198             cpuflags="-mcpu=cell"
2199             enable ldbrx
2200         ;;
2201         e500v2)
2202             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2203             disable altivec
2204         ;;
2205         e500)
2206             cpuflags="-mcpu=8540 -mhard-float"
2207             disable altivec
2208         ;;
2209     esac
2210
2211 elif enabled x86; then
2212
2213     case $cpu in
2214         i[345]86|pentium)
2215             cpuflags="-march=$cpu"
2216             disable mmx
2217         ;;
2218         # targets that do NOT support conditional mov (cmov)
2219         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2220             cpuflags="-march=$cpu"
2221             disable cmov
2222         ;;
2223         # targets that do support conditional mov (cmov)
2224         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2225             cpuflags="-march=$cpu"
2226             enable cmov
2227             enable fast_cmov
2228         ;;
2229         # targets that do support conditional mov but on which it's slow
2230         pentium4|pentium4m|prescott|nocona)
2231             cpuflags="-march=$cpu"
2232             enable cmov
2233             disable fast_cmov
2234         ;;
2235     esac
2236
2237 elif enabled sparc; then
2238
2239     case $cpu in
2240         niagara)
2241             cpuflags="-mcpu=$cpu"
2242             disable vis
2243         ;;
2244         sparc64)
2245             cpuflags="-mcpu=v9"
2246         ;;
2247     esac
2248
2249 elif enabled arm; then
2250
2251     case $cpu in
2252         armv*)
2253             cpuflags="-march=$cpu"
2254             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2255         ;;
2256         *)
2257             cpuflags="-mcpu=$cpu"
2258             case $cpu in
2259                 cortex-a*)                               subarch=armv7a  ;;
2260                 cortex-r*)                               subarch=armv7r  ;;
2261                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2262                 arm11*)                                  subarch=armv6   ;;
2263                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2264                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2265             esac
2266         ;;
2267     esac
2268
2269 elif enabled alpha; then
2270
2271     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2272
2273 elif enabled bfin; then
2274
2275     cpuflags="-mcpu=$cpu"
2276
2277 elif enabled mips; then
2278
2279     cpuflags="-march=$cpu"
2280
2281 elif enabled avr32; then
2282
2283     case $cpu in
2284         ap7[02]0[0-2])
2285             subarch="avr32_ap"
2286             cpuflags="-mpart=$cpu"
2287         ;;
2288         ap)
2289             subarch="avr32_ap"
2290             cpuflags="-march=$cpu"
2291         ;;
2292         uc3[ab]*)
2293             subarch="avr32_uc"
2294             cpuflags="-mcpu=$cpu"
2295         ;;
2296         uc)
2297             subarch="avr32_uc"
2298             cpuflags="-march=$cpu"
2299         ;;
2300     esac
2301
2302 fi
2303
2304 add_cflags $cpuflags
2305 add_asflags $cpuflags
2306
2307 # compiler sanity check
2308 check_exec <<EOF
2309 int main(void){ return 0; }
2310 EOF
2311 if test "$?" != 0; then
2312     echo "$cc is unable to create an executable file."
2313     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2314         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2315         echo "Only do this if you know what cross compiling means."
2316     fi
2317     die "C compiler test failed."
2318 fi
2319
2320 add_cppflags -D_ISOC99_SOURCE
2321 check_cflags -std=c99
2322 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2323 #include <stdlib.h>
2324 EOF
2325 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2326 #include <stdlib.h>
2327 EOF
2328
2329 check_host_cflags -std=c99
2330 check_host_cflags -Wall
2331
2332 case "$arch" in
2333     alpha|ia64|mips|parisc|sparc)
2334         spic=$shared
2335     ;;
2336     x86)
2337         subarch="x86_32"
2338         check_cc <<EOF && subarch="x86_64"
2339         int test[(int)sizeof(char*) - 7];
2340 EOF
2341         if test "$subarch" = "x86_64"; then
2342             spic=$shared
2343         fi
2344     ;;
2345 esac
2346
2347 enable $subarch
2348 enabled spic && enable pic
2349
2350 # OS specific
2351 case $target_os in
2352     haiku)
2353         prefix_default="/boot/common"
2354         network_extralibs="-lnetwork"
2355         host_libs=
2356         ;;
2357     sunos)
2358         AVSERVERLDFLAGS=""
2359         SHFLAGS='-shared -Wl,-h,$$(@F)'
2360         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2361         network_extralibs="-lsocket -lnsl"
2362         add_cppflags -D__EXTENSIONS__
2363         nm_opts='-P -g'
2364         ;;
2365     netbsd)
2366         disable symver
2367         oss_indev_extralibs="-lossaudio"
2368         oss_outdev_extralibs="-lossaudio"
2369         ;;
2370     openbsd)
2371         enable malloc_aligned
2372         # On OpenBSD 4.5. the compiler does not use PIC unless
2373         # explicitly using -fPIC. Libav builds fine without PIC,
2374         # however the generated executable will not do anything
2375         # (simply quits with exit-code 1, no crash, no output).
2376         # Thus explicitly enable PIC here.
2377         enable pic
2378         disable symver
2379         SHFLAGS='-shared'
2380         oss_indev_extralibs="-lossaudio"
2381         oss_outdev_extralibs="-lossaudio"
2382         ;;
2383     dragonfly)
2384         enable malloc_aligned
2385         disable symver
2386         ;;
2387     freebsd)
2388         enable malloc_aligned
2389         ;;
2390     bsd/os)
2391         add_extralibs -lpoll -lgnugetopt
2392         ;;
2393     darwin)
2394         enable malloc_aligned
2395         gas="gas-preprocessor.pl $cc"
2396         enabled ppc && add_asflags -force_cpusubtype_ALL
2397         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2398         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2399         add_ldflags -Wl,-dynamic,-search_paths_first
2400         SLIBSUF=".dylib"
2401         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2402         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2403         AVSERVERLDFLAGS=-Wl,-bind_at_load
2404         objformat="macho"
2405         enabled x86_64 && objformat="macho64"
2406         enabled_any pic shared ||
2407             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2408         ;;
2409     mingw32*)
2410         if test $target_os = "mingw32ce"; then
2411             disable network
2412         else
2413             target_os=mingw32
2414         fi
2415         LIBTARGET=i386
2416         if enabled x86_64; then
2417             enable malloc_aligned
2418             LIBTARGET="i386:x86-64"
2419         elif enabled arm; then
2420             LIBTARGET=arm-wince
2421         fi
2422         shlibdir_default="$bindir_default"
2423         SLIBPREF=""
2424         SLIBSUF=".dll"
2425         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2426         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2427         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2428         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2429         SLIB_INSTALL_LINKS=
2430         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2431         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2432         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'
2433         objformat="win32"
2434         dlltool="${cross_prefix}dlltool"
2435         enable dos_paths
2436         check_cflags -fno-common
2437         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2438                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2439                 die "ERROR: MinGW runtime version must be >= 3.15."
2440         add_cppflags -U__STRICT_ANSI__
2441         ;;
2442     cygwin*)
2443         target_os=cygwin
2444         shlibdir_default="$bindir_default"
2445         SLIBPREF="cyg"
2446         SLIBSUF=".dll"
2447         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2448         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2449         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2450         objformat="win32"
2451         enable dos_paths
2452         check_cflags -fno-common
2453         add_cppflags -U__STRICT_ANSI__
2454         ;;
2455     *-dos|freedos|opendos)
2456         network_extralibs="-lsocket"
2457         objformat="coff"
2458         enable dos_paths
2459         add_cppflags -U__STRICT_ANSI__
2460         ;;
2461     linux)
2462         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2463         enable dv1394
2464         ;;
2465     irix*)
2466         target_os=irix
2467         ranlib="echo ignoring ranlib"
2468         ;;
2469     os/2*)
2470         ln_s="cp -f"
2471         objformat="aout"
2472         add_cppflags -D_GNU_SOURCE
2473         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2474         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2475         AVSERVERLDFLAGS=""
2476         LIBSUF="_s.a"
2477         SLIBPREF=""
2478         SLIBSUF=".dll"
2479         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2480         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2481         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2482           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2483           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2484           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2485           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2486           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2487         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2488           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2489         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2490         enable dos_paths
2491         ;;
2492     gnu/kfreebsd)
2493         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2494         ;;
2495     gnu)
2496         ;;
2497     qnx)
2498         add_cppflags -D_QNX_SOURCE
2499         network_extralibs="-lsocket"
2500         ;;
2501     symbian)
2502         SLIBSUF=".dll"
2503         enable dos_paths
2504         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2505         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2506         add_ldflags -Wl,--target1-abs,--no-undefined \
2507                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2508                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2509         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2510                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2511                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2512         ;;
2513     none)
2514         ;;
2515     *)
2516         die "Unknown OS '$target_os'."
2517         ;;
2518 esac
2519
2520 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2521
2522 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2523
2524 set_default $PATHS_LIST
2525
2526 # we need to build at least one lib type
2527 if ! enabled_any static shared; then
2528     cat <<EOF
2529 At least one library type must be built.
2530 Specify --enable-static to build the static libraries or --enable-shared to
2531 build the shared libraries as well. To only build the shared libraries specify
2532 --disable-static in addition to --enable-shared.
2533 EOF
2534     exit 1;
2535 fi
2536
2537 die_license_disabled() {
2538     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2539 }
2540
2541 die_license_disabled gpl libx264
2542 die_license_disabled gpl libxavs
2543 die_license_disabled gpl libxvid
2544 die_license_disabled gpl x11grab
2545
2546 die_license_disabled nonfree libfaac
2547
2548 die_license_disabled version3 libopencore_amrnb
2549 die_license_disabled version3 libopencore_amrwb
2550 die_license_disabled version3 libvo_aacenc
2551 die_license_disabled version3 libvo_amrwbenc
2552
2553 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2554
2555 disabled optimizations || check_cflags -fomit-frame-pointer
2556
2557 enable_pic() {
2558     enable pic
2559     add_cppflags -DPIC
2560     add_cflags   -fPIC
2561     add_asflags  -fPIC
2562 }
2563
2564 enabled pic && enable_pic
2565
2566 check_cc <<EOF || die "Symbol mangling check failed."
2567 int ff_extern;
2568 EOF
2569 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2570 extern_prefix=${sym%%ff_extern*}
2571
2572 check_cc <<EOF && enable inline_asm
2573 void foo(void) { __asm__ volatile ("" ::); }
2574 EOF
2575
2576 _restrict=
2577 for restrict_keyword in restrict __restrict__ __restrict; do
2578     check_cc <<EOF && _restrict=$restrict_keyword && break
2579 void foo(char * $restrict_keyword p);
2580 EOF
2581 done
2582
2583 check_cc <<EOF && enable attribute_packed
2584 struct { int x; } __attribute__((packed)) x;
2585 EOF
2586
2587 check_cc <<EOF && enable attribute_may_alias
2588 union { int x; } __attribute__((may_alias)) x;
2589 EOF
2590
2591 check_cc <<EOF || die "endian test failed"
2592 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2593 EOF
2594 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2595
2596 if enabled alpha; then
2597
2598     check_cflags -mieee
2599
2600 elif enabled arm; then
2601
2602     enabled thumb && check_cflags -mthumb || check_cflags -marm
2603     nogas=die
2604
2605     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2606         enable vfp_args
2607     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2608         case "${cross_prefix:-$cc}" in
2609             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2610             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2611 __asm__ (".eabi_attribute 28, 1");
2612 int main(void) { return 0; }
2613 EOF
2614         esac
2615         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2616     fi
2617
2618     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2619     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2620     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2621     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2622     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2623     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2624     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2625
2626     enabled_all armv6t2 shared !pic && enable_pic
2627
2628 elif enabled mips; then
2629
2630     check_asm loongson '"dmult.g $1, $2, $3"'
2631     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2632
2633 elif enabled ppc; then
2634
2635     enable local_aligned_8 local_aligned_16
2636
2637     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2638     check_asm ibm_asm   '"add 0, 0, 0"'
2639     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2640     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2641
2642     # AltiVec flags: The FSF version of GCC differs from the Apple version
2643     if enabled altivec; then
2644         nogas=warn
2645         check_cflags -maltivec -mabi=altivec &&
2646         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2647         check_cflags -faltivec
2648
2649         # check if our compiler supports Motorola AltiVec C API
2650         check_cc <<EOF || disable altivec
2651 $inc_altivec_h
2652 int main(void) {
2653     vector signed int v1, v2, v3;
2654     v1 = vec_add(v2,v3);
2655     return 0;
2656 }
2657 EOF
2658
2659         # check if our compiler supports braces for vector declarations
2660         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2661 $inc_altivec_h
2662 int main (void) { (vector int) {1}; return 0; }
2663 EOF
2664     fi
2665
2666 elif enabled sparc; then
2667
2668     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2669         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2670
2671 elif enabled x86; then
2672
2673     enable local_aligned_8 local_aligned_16
2674
2675     # check whether EBP is available on x86
2676     # As 'i' is stored on the stack, this program will crash
2677     # if the base pointer is used to access it because the
2678     # base pointer is cleared in the inline assembly code.
2679     check_exec_crash <<EOF && enable ebp_available
2680     volatile int i=0;
2681     __asm__ volatile (
2682         "xorl %%ebp, %%ebp"
2683     ::: "%ebp");
2684     return i;
2685 EOF
2686
2687     # check whether EBX is available on x86
2688     check_asm ebx_available '""::"b"(0)' &&
2689         check_asm ebx_available '"":::"%ebx"'
2690
2691     # check whether xmm clobbers are supported
2692     check_asm xmm_clobbers '"":::"%xmm0"'
2693
2694     # check whether binutils is new enough to compile SSSE3/MMX2
2695     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2696     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2697
2698     check_asm bswap '"bswap %%eax" ::: "%eax"'
2699
2700     if ! disabled_any asm mmx yasm; then
2701         if check_cmd $yasmexe --version; then
2702             enabled x86_64 && yasm_extra="-m amd64"
2703             yasm_debug="-g dwarf2"
2704         elif check_cmd nasm -v; then
2705             yasmexe=nasm
2706             yasm_debug="-g -F dwarf"
2707             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2708         fi
2709
2710         YASMFLAGS="-f $objformat $yasm_extra"
2711         enabled pic               && append YASMFLAGS "-DPIC"
2712         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2713         case "$objformat" in
2714             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2715         esac
2716
2717         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2718             die "yasm not found, use --disable-yasm for a crippled build"
2719         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2720     fi
2721
2722     case "$cpu" in
2723         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2724             disable fast_clz
2725         ;;
2726     esac
2727
2728 fi
2729
2730 if enabled asm; then
2731     as=${gas:=$as}
2732     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2733         $nogas "GNU assembler not found, install gas-preprocessor"
2734 fi
2735
2736 check_ldflags -Wl,--as-needed
2737
2738 if check_func dlopen; then
2739     ldl=
2740 elif check_func dlopen -ldl; then
2741     ldl=-ldl
2742 fi
2743
2744 if enabled network; then
2745     check_type "sys/types.h sys/socket.h" socklen_t
2746     check_type netdb.h "struct addrinfo"
2747     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2748     check_type netinet/in.h "struct sockaddr_in6"
2749     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2750     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2751     # Prefer arpa/inet.h over winsock2
2752     if check_header arpa/inet.h ; then
2753         check_func closesocket
2754     elif check_header winsock2.h ; then
2755         check_func_headers winsock2.h closesocket -lws2 && \
2756             network_extralibs="-lws2" || \
2757         { check_func_headers winsock2.h closesocket -lws2_32 && \
2758             network_extralibs="-lws2_32"; }
2759         check_type ws2tcpip.h socklen_t
2760         check_type ws2tcpip.h "struct addrinfo"
2761         check_type ws2tcpip.h "struct ipv6_mreq"
2762         check_type ws2tcpip.h "struct sockaddr_in6"
2763         check_type ws2tcpip.h "struct sockaddr_storage"
2764         check_struct winsock2.h "struct sockaddr" sa_len
2765     else
2766         disable network
2767     fi
2768 fi
2769
2770 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2771 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2772
2773 check_func  fcntl
2774 check_func  fork
2775 check_func  getaddrinfo $network_extralibs
2776 check_func  gethrtime
2777 check_func  getrusage
2778 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2779 check_func  inet_aton $network_extralibs
2780 check_func  isatty
2781 check_func  localtime_r
2782 check_func  ${malloc_prefix}memalign            && enable memalign
2783 check_func  mkstemp
2784 check_func  mmap
2785 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2786 check_func  setrlimit
2787 check_func  strerror_r
2788 check_func  strptime
2789 check_func  strtok_r
2790 check_func_headers io.h setmode
2791 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2792 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2793 check_func_headers windows.h GetProcessTimes
2794 check_func_headers windows.h MapViewOfFile
2795 check_func_headers windows.h VirtualAlloc
2796
2797 check_header dlfcn.h
2798 check_header dxva2api.h
2799 check_header malloc.h
2800 check_header poll.h
2801 check_header sys/mman.h
2802 check_header sys/resource.h
2803 check_header sys/select.h
2804 check_header vdpau/vdpau.h
2805 check_header vdpau/vdpau_x11.h
2806 check_header X11/extensions/XvMClib.h
2807
2808 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2809
2810 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2811 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2812
2813 # check for some common methods of building with pthread support
2814 # do this before the optional library checks as some of them require pthreads
2815 if ! disabled pthreads && ! enabled w32threads; then
2816     enable pthreads
2817     if check_func pthread_create; then
2818         :
2819     elif check_func pthread_create -pthread; then
2820         add_cflags -pthread
2821         add_extralibs -pthread
2822     elif check_func pthread_create -pthreads; then
2823         add_cflags -pthreads
2824         add_extralibs -pthreads
2825     elif check_func pthread_create -lpthreadGC2; then
2826         add_extralibs -lpthreadGC2
2827     elif ! check_lib pthread.h pthread_create -lpthread; then
2828         disable pthreads
2829     fi
2830 fi
2831
2832 for thread in $THREADS_LIST; do
2833     if enabled $thread; then
2834         test -n "$thread_type" &&
2835             die "ERROR: Only one thread type must be selected." ||
2836             thread_type="$thread"
2837     fi
2838 done
2839
2840 check_lib math.h sin -lm && LIBM="-lm"
2841 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2842
2843 check_mathfunc exp2
2844 check_mathfunc exp2f
2845 check_mathfunc llrint
2846 check_mathfunc llrintf
2847 check_mathfunc log2
2848 check_mathfunc log2f
2849 check_mathfunc lrint
2850 check_mathfunc lrintf
2851 check_mathfunc round
2852 check_mathfunc roundf
2853 check_mathfunc trunc
2854 check_mathfunc truncf
2855
2856 # these are off by default, so fail if requested and not available
2857 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2858 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2859 enabled libdirac   && require_pkg_config dirac                          \
2860     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2861     "dirac_decoder_init dirac_encoder_init"
2862 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2863 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2864 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2865 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2866 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2867 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2868 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2869 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2870 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2871 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2872 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2873 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2874 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2875 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2876 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2877 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2878 enabled libvpx     && {
2879     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2880                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2881     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2882                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2883 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2884                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2885                         die "ERROR: libx264 version must be >= 0.115."; }
2886 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2887 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2888 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2889
2890 # libdc1394 check
2891 if enabled libdc1394; then
2892     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2893         enable libdc1394_2; } ||
2894     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2895         enable libdc1394_1; } ||
2896     die "ERROR: No version of libdc1394 found "
2897 fi
2898
2899 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2900     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2901     enable sdl &&
2902     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2903 fi
2904
2905 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2906
2907 check_header linux/fb.h
2908 check_header linux/videodev.h
2909 check_header linux/videodev2.h
2910 check_header sys/videoio.h
2911
2912 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2913 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2914 # w32api 3.12 had it defined wrong
2915 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2916
2917 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2918 { check_header dev/bktr/ioctl_meteor.h &&
2919   check_header dev/bktr/ioctl_bt848.h; } ||
2920 { check_header machine/ioctl_meteor.h &&
2921   check_header machine/ioctl_bt848.h; } ||
2922 { check_header dev/video/meteor/ioctl_meteor.h &&
2923   check_header dev/video/bktr/ioctl_bt848.h; } ||
2924 check_header dev/ic/bt8xx.h
2925
2926 check_header sndio.h
2927 check_header sys/soundcard.h
2928 check_header soundcard.h
2929
2930 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2931
2932 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2933
2934 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2935
2936 enabled x11grab                         &&
2937 check_header X11/Xlib.h                 &&
2938 check_header X11/extensions/XShm.h      &&
2939 check_header X11/extensions/Xfixes.h    &&
2940 check_func XOpenDisplay -lX11           &&
2941 check_func XShmCreateImage -lX11 -lXext &&
2942 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2943
2944 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2945 check_cpp_condition \
2946     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2947     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2948       disable vdpau; }
2949 fi
2950
2951 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2952
2953 # add some useful compiler flags if supported
2954 check_cflags -Wdeclaration-after-statement
2955 check_cflags -Wall
2956 check_cflags -Wno-parentheses
2957 check_cflags -Wno-switch
2958 check_cflags -Wno-format-zero-length
2959 check_cflags -Wdisabled-optimization
2960 check_cflags -Wpointer-arith
2961 check_cflags -Wredundant-decls
2962 check_cflags -Wno-pointer-sign
2963 check_cflags -Wcast-qual
2964 check_cflags -Wwrite-strings
2965 check_cflags -Wtype-limits
2966 check_cflags -Wundef
2967 check_cflags -Wmissing-prototypes
2968 enabled extra_warnings && check_cflags -Winline
2969
2970 # add some linker flags
2971 check_ldflags -Wl,--warn-common
2972 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
2973 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2974
2975 echo "X{};" > $TMPV
2976 if test_ldflags -Wl,--version-script,$TMPV; then
2977     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2978     check_cc <<EOF && enable symver_asm_label
2979 void ff_foo(void) __asm__ ("av_foo@VERSION");
2980 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2981 EOF
2982     check_cc <<EOF && enable symver_gnu_asm
2983 __asm__(".symver ff_foo,av_foo@VERSION");
2984 void ff_foo(void) {}
2985 EOF
2986 fi
2987
2988 if [ -n "$optflags" ]; then
2989     add_cflags $optflags
2990 elif enabled small; then
2991     add_cflags $size_cflags
2992 elif enabled optimizations; then
2993     add_cflags $speed_cflags
2994 else
2995     add_cflags $noopt_cflags
2996 fi
2997 check_cflags -fno-math-errno
2998 check_cflags -fno-signed-zeros
2999
3000 if enabled icc; then
3001     # Just warnings, no remarks
3002     check_cflags -w1
3003     # -wd: Disable following warnings
3004     # 144, 167, 556: -Wno-pointer-sign
3005     # 1292: attribute "foo" ignored
3006     # 10006: ignoring unknown option -fno-signed-zeros
3007     # 10148: ignoring unknown option -Wno-parentheses
3008     # 10156: ignoring option '-W'; no argument required
3009     check_cflags -wd144,167,556,1292,10006,10148,10156
3010     # 11030: Warning unknown option --as-needed
3011     # 10156: ignoring option '-export'; no argument required
3012     check_ldflags -wd10156,11030
3013     # Allow to compile with optimizations
3014     check_ldflags -march=$cpu
3015     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3016     enable ebp_available
3017     if enabled x86_32; then
3018         test ${icc_version%%.*} -ge 11 && \
3019             check_cflags -falign-stack=maintain-16-byte || \
3020             disable aligned_stack
3021     fi
3022 elif enabled ccc; then
3023     # disable some annoying warnings
3024     add_cflags -msg_disable cvtu32to64
3025     add_cflags -msg_disable embedcomment
3026     add_cflags -msg_disable needconstext
3027     add_cflags -msg_disable nomainieee
3028     add_cflags -msg_disable ptrmismatch1
3029     add_cflags -msg_disable unreachcode
3030 elif enabled gcc; then
3031     check_cflags -fno-tree-vectorize
3032     check_cflags -Werror=implicit-function-declaration
3033     check_cflags -Werror=missing-prototypes
3034 elif enabled llvm_gcc; then
3035     check_cflags -mllvm -stack-alignment=16
3036 elif enabled clang; then
3037     check_cflags -mllvm -stack-alignment=16
3038     check_cflags -Qunused-arguments
3039 elif enabled armcc; then
3040     # 2523: use of inline assembler is deprecated
3041     add_cflags -W${armcc_opt},--diag_suppress=2523
3042     add_cflags -W${armcc_opt},--diag_suppress=1207
3043     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3044     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3045     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3046     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3047 elif enabled tms470; then
3048     add_cflags -pds=824 -pds=837
3049 elif enabled pathscale; then
3050     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3051 fi
3052
3053 enabled_any $THREADS_LIST      && enable threads
3054
3055 check_deps $CONFIG_LIST       \
3056            $CONFIG_EXTRA      \
3057            $HAVE_LIST         \
3058            $DECODER_LIST      \
3059            $ENCODER_LIST      \
3060            $HWACCEL_LIST      \
3061            $PARSER_LIST       \
3062            $BSF_LIST          \
3063            $DEMUXER_LIST      \
3064            $MUXER_LIST        \
3065            $FILTER_LIST       \
3066            $INDEV_LIST        \
3067            $OUTDEV_LIST       \
3068            $PROTOCOL_LIST     \
3069            $ACODEC_TESTS      \
3070            $VCODEC_TESTS      \
3071            $LAVF_TESTS        \
3072            $LAVFI_TESTS       \
3073            $SEEK_TESTS        \
3074
3075 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3076
3077 ! enabled_any memalign posix_memalign malloc_aligned &&
3078     enabled_any $need_memalign && enable memalign_hack
3079
3080 echo "install prefix            $prefix"
3081 echo "source path               $source_path"
3082 echo "C compiler                $cc"
3083 echo "ARCH                      $arch ($cpu)"
3084 if test "$build_suffix" != ""; then
3085     echo "build suffix              $build_suffix"
3086 fi
3087 if test "$extra_version" != ""; then
3088     echo "version string suffix     $extra_version"
3089 fi
3090 echo "big-endian                ${bigendian-no}"
3091 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3092 if enabled x86; then
3093     echo "${yasmexe}                      ${yasm-no}"
3094     echo "MMX enabled               ${mmx-no}"
3095     echo "MMX2 enabled              ${mmx2-no}"
3096     echo "3DNow! enabled            ${amd3dnow-no}"
3097     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3098     echo "SSE enabled               ${sse-no}"
3099     echo "SSSE3 enabled             ${ssse3-no}"
3100     echo "AVX enabled               ${avx-no}"
3101     echo "CMOV enabled              ${cmov-no}"
3102     echo "CMOV is fast              ${fast_cmov-no}"
3103     echo "EBX available             ${ebx_available-no}"
3104     echo "EBP available             ${ebp_available-no}"
3105 fi
3106 if enabled arm; then
3107     echo "ARMv5TE enabled           ${armv5te-no}"
3108     echo "ARMv6 enabled             ${armv6-no}"
3109     echo "ARMv6T2 enabled           ${armv6t2-no}"
3110     echo "ARM VFP enabled           ${armvfp-no}"
3111     echo "IWMMXT enabled            ${iwmmxt-no}"
3112     echo "NEON enabled              ${neon-no}"
3113 fi
3114 if enabled mips; then
3115     echo "MMI enabled               ${mmi-no}"
3116 fi
3117 if enabled ppc; then
3118     echo "AltiVec enabled           ${altivec-no}"
3119     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3120     echo "dcbzl available           ${dcbzl-no}"
3121 fi
3122 if enabled sparc; then
3123     echo "VIS enabled               ${vis-no}"
3124 fi
3125 echo "debug symbols             ${debug-no}"
3126 echo "optimize for size         ${small-no}"
3127 echo "optimizations             ${optimizations-no}"
3128 echo "static                    ${static-no}"
3129 echo "shared                    ${shared-no}"
3130 echo "postprocessing support    ${postproc-no}"
3131 echo "new filter support        ${avfilter-no}"
3132 echo "network support           ${network-no}"
3133 echo "threading support         ${thread_type-no}"
3134 echo "SDL support               ${sdl-no}"
3135 echo "Sun medialib support      ${mlib-no}"
3136 echo "libdxva2 enabled          ${dxva2-no}"
3137 echo "libva enabled             ${vaapi-no}"
3138 echo "libvdpau enabled          ${vdpau-no}"
3139 echo "AVISynth enabled          ${avisynth-no}"
3140 echo "frei0r enabled            ${frei0r-no}"
3141 echo "libdc1394 support         ${libdc1394-no}"
3142 echo "libdirac enabled          ${libdirac-no}"
3143 echo "libfaac enabled           ${libfaac-no}"
3144 echo "libgsm enabled            ${libgsm-no}"
3145 echo "libmp3lame enabled        ${libmp3lame-no}"
3146 echo "libnut enabled            ${libnut-no}"
3147 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3148 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3149 echo "libopencv support         ${libopencv-no}"
3150 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3151 echo "librtmp enabled           ${librtmp-no}"
3152 echo "libschroedinger enabled   ${libschroedinger-no}"
3153 echo "libspeex enabled          ${libspeex-no}"
3154 echo "libtheora enabled         ${libtheora-no}"
3155 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3156 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3157 echo "libvorbis enabled         ${libvorbis-no}"
3158 echo "libvpx enabled            ${libvpx-no}"
3159 echo "libx264 enabled           ${libx264-no}"
3160 echo "libxavs enabled           ${libxavs-no}"
3161 echo "libxvid enabled           ${libxvid-no}"
3162 echo "zlib enabled              ${zlib-no}"
3163 echo "bzlib enabled             ${bzlib-no}"
3164 echo
3165
3166 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3167     echo "Enabled ${type}s:"
3168     eval list=\$$(toupper $type)_LIST
3169     print_enabled '_*' $list | sort | pr -r -3 -t
3170     echo
3171 done
3172
3173 license="LGPL version 2.1 or later"
3174 if enabled nonfree; then
3175     license="nonfree and unredistributable"
3176 elif enabled gplv3; then
3177     license="GPL version 3 or later"
3178 elif enabled lgplv3; then
3179     license="LGPL version 3 or later"
3180 elif enabled gpl; then
3181     license="GPL version 2 or later"
3182 fi
3183
3184 echo "License: $license"
3185
3186 echo "Creating config.mak and config.h..."
3187
3188 test -e Makefile || $ln_s "$source_path/Makefile" .
3189
3190 config_files="$TMPH config.mak"
3191
3192 cat > config.mak <<EOF
3193 # Automatically generated by configure - do not modify!
3194 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3195 prefix=$prefix
3196 LIBDIR=\$(DESTDIR)$libdir
3197 SHLIBDIR=\$(DESTDIR)$shlibdir
3198 INCDIR=\$(DESTDIR)$incdir
3199 BINDIR=\$(DESTDIR)$bindir
3200 DATADIR=\$(DESTDIR)$datadir
3201 MANDIR=\$(DESTDIR)$mandir
3202 SRC_PATH=$source_path
3203 CC_IDENT=$cc_ident
3204 ARCH=$arch
3205 CC=$cc
3206 AS=$as
3207 LD=$ld
3208 DEPCC=$dep_cc
3209 YASM=$yasmexe
3210 YASMDEP=$yasmexe
3211 AR=$ar
3212 RANLIB=$ranlib
3213 LN_S=$ln_s
3214 CPPFLAGS=$CPPFLAGS
3215 CFLAGS=$CFLAGS
3216 ASFLAGS=$ASFLAGS
3217 AS_O=$CC_O
3218 CC_O=$CC_O
3219 DLLTOOL=$dlltool
3220 LDFLAGS=$LDFLAGS
3221 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3222 SHFLAGS=$SHFLAGS
3223 YASMFLAGS=$YASMFLAGS
3224 BUILDSUF=$build_suffix
3225 FULLNAME=$FULLNAME
3226 LIBPREF=$LIBPREF
3227 LIBSUF=$LIBSUF
3228 LIBNAME=$LIBNAME
3229 SLIBPREF=$SLIBPREF
3230 SLIBSUF=$SLIBSUF
3231 EXESUF=$EXESUF
3232 EXTRA_VERSION=$extra_version
3233 DEPFLAGS=$DEPFLAGS
3234 CCDEP=$CCDEP
3235 ASDEP=$ASDEP
3236 CC_DEPFLAGS=$CC_DEPFLAGS
3237 AS_DEPFLAGS=$AS_DEPFLAGS
3238 HOSTCC=$host_cc
3239 HOSTCFLAGS=$host_cflags
3240 HOSTEXESUF=$HOSTEXESUF
3241 HOSTLDFLAGS=$host_ldflags
3242 HOSTLIBS=$host_libs
3243 TARGET_EXEC=$target_exec
3244 TARGET_PATH=$target_path
3245 SDL_LIBS=$sdl_libs
3246 SDL_CFLAGS=$sdl_cflags
3247 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3248 EXTRALIBS=$extralibs
3249 INSTALL=install
3250 LIBTARGET=${LIBTARGET}
3251 SLIBNAME=${SLIBNAME}
3252 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3253 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3254 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3255 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3256 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3257 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3258 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3259 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3260 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3261 EOF
3262
3263 get_version(){
3264     name=$1
3265     file=$source_path/$2
3266     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3267     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3268     lcname=$(tolower $name)
3269     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3270     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3271 }
3272
3273 get_version LIBSWSCALE  libswscale/swscale.h
3274 get_version LIBPOSTPROC libpostproc/postprocess.h
3275 get_version LIBAVCODEC  libavcodec/version.h
3276 get_version LIBAVDEVICE libavdevice/avdevice.h
3277 get_version LIBAVFORMAT libavformat/version.h
3278 get_version LIBAVUTIL   libavutil/avutil.h
3279 get_version LIBAVFILTER libavfilter/avfilter.h
3280
3281 cat > $TMPH <<EOF
3282 /* Automatically generated by configure - do not modify! */
3283 #ifndef LIBAV_CONFIG_H
3284 #define LIBAV_CONFIG_H
3285 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3286 #define LIBAV_LICENSE "$(c_escape $license)"
3287 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3288 #define CC_TYPE "$cc_type"
3289 #define CC_VERSION $cc_version
3290 #define restrict $_restrict
3291 #define EXTERN_PREFIX "${extern_prefix}"
3292 #define EXTERN_ASM ${extern_prefix}
3293 #define SLIBSUF "$SLIBSUF"
3294 EOF
3295
3296 test -n "$malloc_prefix" &&
3297     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3298
3299 if enabled small || disabled optimizations; then
3300     echo "#undef  av_always_inline"  >> $TMPH
3301     if enabled small; then
3302         echo "#define av_always_inline inline"  >> $TMPH
3303     else
3304         echo "#define av_always_inline av_unused"  >> $TMPH
3305     fi
3306 fi
3307
3308 if enabled yasm; then
3309     append config_files $TMPASM
3310     printf '' >$TMPASM
3311 fi
3312
3313 print_config ARCH_   "$config_files" $ARCH_LIST
3314 print_config HAVE_   "$config_files" $HAVE_LIST
3315 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3316                                      $CONFIG_EXTRA      \
3317                                      $DECODER_LIST      \
3318                                      $ENCODER_LIST      \
3319                                      $HWACCEL_LIST      \
3320                                      $PARSER_LIST       \
3321                                      $BSF_LIST          \
3322                                      $DEMUXER_LIST      \
3323                                      $MUXER_LIST        \
3324                                      $FILTER_LIST       \
3325                                      $PROTOCOL_LIST     \
3326                                      $INDEV_LIST        \
3327                                      $OUTDEV_LIST       \
3328
3329 cat >>config.mak <<EOF
3330 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3331 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3332 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3333 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3334 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3335 EOF
3336
3337 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3338
3339 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3340 cp_if_changed $TMPH config.h
3341 touch .config
3342
3343 enabled yasm && cp_if_changed $TMPASM config.asm
3344
3345 cat > $TMPH <<EOF
3346 /* Generated by ffconf */
3347 #ifndef AVUTIL_AVCONFIG_H
3348 #define AVUTIL_AVCONFIG_H
3349 EOF
3350
3351 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3352
3353 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3354
3355 cp_if_changed $TMPH libavutil/avconfig.h
3356
3357 test -n "$WARNINGS" && printf "\n$WARNINGS"
3358
3359 # build pkg-config files
3360
3361 pkgconfig_generate(){
3362 name=$1
3363 shortname=${name#lib}${build_suffix}
3364 comment=$2
3365 version=$3
3366 libs=$4
3367 requires=$5
3368 enabled ${name#lib} || return 0
3369 mkdir -p $name
3370 cat <<EOF > $name/$name.pc
3371 prefix=$prefix
3372 exec_prefix=\${prefix}
3373 libdir=$libdir
3374 includedir=$incdir
3375
3376 Name: $name
3377 Description: $comment
3378 Version: $version
3379 Requires: $(enabled shared || echo $requires)
3380 Requires.private: $(enabled shared && echo $requires)
3381 Conflicts:
3382 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3383 Libs.private: $(enabled shared && echo $libs)
3384 Cflags: -I\${includedir}
3385 EOF
3386 cat <<EOF > $name/$name-uninstalled.pc
3387 prefix=
3388 exec_prefix=
3389 libdir=\${pcfiledir}
3390 includedir=${source_path}
3391
3392 Name: $name
3393 Description: $comment
3394 Version: $version
3395 Requires: $requires
3396 Conflicts:
3397 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3398 Cflags: -I\${includedir}
3399 EOF
3400 }
3401
3402 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3403 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3404 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3405 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3406 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3407 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3408 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"