configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 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.err]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffserver       disable ffserver build
  86   --enable-postproc        enable GPLed postprocessing support [no]
  87   --enable-avfilter        video filter support [no]
  88   --enable-avfilter-lavf   video filters dependent on avformat [no]
  89   --enable-beosthreads     use BeOS threads [no]
  90   --enable-os2threads      use OS/2 threads [no]
  91   --enable-pthreads        use pthreads [no]
  92   --enable-w32threads      use Win32 threads [no]
  93   --enable-x11grab         enable X11 grabbing [no]
  94   --disable-network        disable network support [no]
  95   --disable-ipv6           disable IPv6 support [no]
  96   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [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-fft            disable FFT code
 103   --disable-golomb         disable Golomb code
 104   --disable-lpc            disable LPC code
 105   --disable-mdct           disable MDCT code
 106   --disable-rdft           disable RDFT code
 107   --disable-vaapi          disable VAAPI code
 108   --disable-vdpau          disable VDPAU code
 109   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 110   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 111   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 112   --enable-beos-netserver  enable BeOS netserver
 113   --disable-encoder=NAME   disable encoder NAME
 114   --enable-encoder=NAME    enable encoder NAME
 115   --disable-encoders       disable all encoders
 116   --disable-decoder=NAME   disable decoder NAME
 117   --enable-decoder=NAME    enable decoder NAME
 118   --disable-decoders       disable all decoders
 119   --disable-hwaccel=NAME   disable hwaccel NAME
 120   --enable-hwaccel=NAME    enable hwaccel NAME
 121   --disable-hwaccels       disable all hwaccels
 122   --disable-muxer=NAME     disable muxer NAME
 123   --enable-muxer=NAME      enable muxer NAME
 124   --disable-muxers         disable all muxers
 125   --disable-demuxer=NAME   disable demuxer NAME
 126   --enable-demuxer=NAME    enable demuxer NAME
 127   --disable-demuxers       disable all demuxers
 128   --enable-parser=NAME     enable parser NAME
 129   --disable-parser=NAME    disable parser NAME
 130   --disable-parsers        disable all parsers
 131   --enable-bsf=NAME        enable bitstream filter NAME
 132   --disable-bsf=NAME       disable bitstream filter NAME
 133   --disable-bsfs           disable all bitstream filters
 134   --enable-protocol=NAME   enable protocol NAME
 135   --disable-protocol=NAME  disable protocol NAME
 136   --disable-protocols      disable all protocols
 137   --disable-indev=NAME     disable input device NAME
 138   --disable-outdev=NAME    disable output device NAME
 139   --disable-indevs         disable input devices
 140   --disable-outdevs        disable output devices
 141   --disable-devices        disable all devices
 142   --enable-filter=NAME     enable filter NAME
 143   --disable-filter=NAME    disable filter NAME
 144   --disable-filters        disable all filters
 145   --list-decoders          show all available decoders
 146   --list-encoders          show all available encoders
 147   --list-hwaccels          show all available hardware accelerators
 148   --list-muxers            show all available muxers
 149   --list-demuxers          show all available demuxers
 150   --list-parsers           show all available parsers
 151   --list-protocols         show all available protocols
 152   --list-bsfs              show all available bitstream filters
 153   --list-indevs            show all available input devices
 154   --list-outdevs           show all available output devices
 155   --list-filters           show all available filters
 156
 157 External library support:
 158   --enable-avisynth        enable reading of AVISynth script files [no]
 159   --enable-bzlib           enable bzlib [autodetect]
 160   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 161   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 162   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 163                            and libraw1394 [no]
 164   --enable-libdirac        enable Dirac support via libdirac [no]
 165   --enable-libfaac         enable FAAC support via libfaac [no]
 166   --enable-libfaad         enable FAAD support via libfaad [no]
 167   --enable-libfaadbin      open libfaad.so.0 at runtime [no]
 168   --enable-libgsm          enable GSM support via libgsm [no]
 169   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 170   --enable-libnut          enable NUT (de)muxing via libnut,
 171                            native (de)muxer exists [no]
 172   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 173   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 174   --enable-libspeex        enable Speex decoding via libspeex [no]
 175   --enable-libtheora       enable Theora encoding via libtheora [no]
 176   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 177                            native implementation exists [no]
 178   --enable-libx264         enable H.264 encoding via x264 [no]
 179   --enable-libxvid         enable Xvid encoding via xvidcore,
 180                            native MPEG-4/Xvid encoder exists [no]
 181   --enable-mlib            enable Sun medialib [no]
 182   --enable-zlib            enable zlib [autodetect]
 183
 184 Advanced options (experts only):
 185   --source-path=PATH       path to source code [$source_path]
 186   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 187   --enable-cross-compile   assume a cross-compiler is used
 188   --sysroot=PATH           root of cross-build tree
 189   --sysinclude=PATH        location of cross-build system headers
 190   --target-os=OS           compiler targets OS [$target_os]
 191   --target-exec=CMD        command to run executables on target
 192   --target-path=DIR        path to view of build directory on target
 193   --nm=NM                  use nm tool
 194   --as=AS                  use assembler AS [$as_default]
 195   --cc=CC                  use C compiler CC [$cc_default]
 196   --ld=LD                  use linker LD
 197   --host-cc=HOSTCC         use host C compiler HOSTCC
 198   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 199   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 200   --host-libs=HLIBS        use libs HLIBS when linking for host
 201   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 202   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 203   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 204   --extra-version=STRING   version string suffix []
 205   --build-suffix=SUFFIX    library name suffix []
 206   --arch=ARCH              select architecture [$arch]
 207   --cpu=CPU                select the minimum required CPU (affects
 208                            instruction selection, may crash on older CPUs)
 209   --enable-powerpc-perf    enable performance report on PPC
 210                            (requires enabling PMC)
 211   --disable-altivec        disable AltiVec optimizations
 212   --disable-amd3dnow       disable 3DNow! optimizations
 213   --disable-amd3dnowext    disable 3DNow! extended optimizations
 214   --disable-mmx            disable MMX optimizations
 215   --disable-mmx2           disable MMX2 optimizations
 216   --disable-sse            disable SSE optimizations
 217   --disable-ssse3          disable SSSE3 optimizations
 218   --disable-armv5te        disable armv5te optimizations
 219   --disable-armv6          disable armv6 optimizations
 220   --disable-armv6t2        disable armv6t2 optimizations
 221   --disable-armvfp         disable ARM VFP optimizations
 222   --disable-iwmmxt         disable iwmmxt optimizations
 223   --disable-mmi            disable MMI optimizations
 224   --disable-neon           disable neon optimizations
 225   --disable-vis            disable VIS optimizations
 226   --disable-yasm           disable use of yasm assembler
 227   --enable-pic             build position-independent code
 228
 229 Developer options (useful when working on FFmpeg itself):
 230   --disable-debug          disable debugging symbols
 231   --enable-debug=LEVEL     set the debug level [$debuglevel]
 232   --enable-gprof           enable profiling with gprof [$gprof]
 233   --disable-optimizations  disable compiler optimizations
 234   --enable-extra-warnings  enable more compiler warnings
 235   --disable-stripping      disable stripping of executables and shared libraries
 236
 237 NOTE: Object files are built at the place where configure is launched.
 238 EOF
 239   exit 0
 240 }
 241
 242 log(){
 243     echo "$@" >> $logfile
 244 }
 245
 246 log_file(){
 247     log BEGIN $1
 248     pr -n -t $1 >> $logfile
 249     log END $1
 250 }
 251
 252 echolog(){
 253     log "$@"
 254     echo "$@"
 255 }
 256
 257 die(){
 258     echolog "$@"
 259     cat <<EOF
 260
 261 If you think configure made a mistake, make sure you are using the latest
 262 version from SVN.  If the latest version fails, report the problem to the
 263 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 264 EOF
 265     if disabled logging; then
 266         cat <<EOF
 267 Rerun configure with logging enabled (do not use --disable-logging), and
 268 include the log this produces with your report.
 269 EOF
 270     else
 271 cat <<EOF
 272 Include the log file "$logfile" produced by configure as this will help
 273 solving the problem.
 274 EOF
 275     fi
 276     exit 1
 277 }
 278
 279 # Avoid locale weirdness, besides we really just want to translate ASCII.
 280 toupper(){
 281     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 282 }
 283
 284 tolower(){
 285     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 286 }
 287
 288 c_escape(){
 289     echo "$*" | sed 's/["\\]/\\\0/g'
 290 }
 291
 292 sh_quote(){
 293     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 294     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
 295     echo "$v"
 296 }
 297
 298 filter(){
 299     pat=$1
 300     shift
 301     for v; do
 302         eval "case $v in $pat) echo $v ;; esac"
 303     done
 304 }
 305
 306 set_all(){
 307     value=$1
 308     shift
 309     for var in $*; do
 310         eval $var=$value
 311     done
 312 }
 313
 314 set_weak(){
 315     value=$1
 316     shift
 317     for var; do
 318         eval : \${$var:=$value}
 319     done
 320 }
 321
 322 pushvar(){
 323     for var in $*; do
 324         eval level=\${${var}_level:=0}
 325         eval ${var}_${level}="\$$var"
 326         eval ${var}_level=$(($level+1))
 327     done
 328 }
 329
 330 popvar(){
 331     for var in $*; do
 332         eval level=\${${var}_level:-0}
 333         test $level = 0 && continue
 334         eval level=$(($level-1))
 335         eval $var="\${${var}_${level}}"
 336         eval ${var}_level=$level
 337         eval unset ${var}_${level}
 338     done
 339 }
 340
 341 enable(){
 342     set_all yes $*
 343 }
 344
 345 disable(){
 346     set_all no $*
 347 }
 348
 349 enable_weak(){
 350     set_weak yes $*
 351 }
 352
 353 disable_weak(){
 354     set_weak no $*
 355 }
 356
 357 enable_safe(){
 358     for var; do
 359         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 360     done
 361 }
 362
 363 disable_safe(){
 364     for var; do
 365         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 366     done
 367 }
 368
 369 do_enable_deep(){
 370     for var; do
 371         enabled $var && continue
 372         eval sel="\$${var}_select"
 373         eval sgs="\$${var}_suggest"
 374         pushvar var sgs
 375         enable_deep $sel
 376         popvar sgs
 377         enable_deep_weak $sgs
 378         popvar var
 379     done
 380 }
 381
 382 enable_deep(){
 383     do_enable_deep $*
 384     enable $*
 385 }
 386
 387 enable_deep_weak(){
 388     do_enable_deep $*
 389     enable_weak $*
 390 }
 391
 392 enabled(){
 393     test "${1#!}" = "$1" && op== || op=!=
 394     eval test "x\$${1#!}" $op "xyes"
 395 }
 396
 397 disabled(){
 398     test "${1#!}" = "$1" && op== || op=!=
 399     eval test "x\$${1#!}" $op "xno"
 400 }
 401
 402 enabled_all(){
 403     for opt; do
 404         enabled $opt || return 1
 405     done
 406 }
 407
 408 disabled_all(){
 409     for opt; do
 410         disabled $opt || return 1
 411     done
 412 }
 413
 414 enabled_any(){
 415     for opt; do
 416         enabled $opt && return 0
 417     done
 418 }
 419
 420 disabled_any(){
 421     for opt; do
 422         disabled $opt && return 0
 423     done
 424     return 1
 425 }
 426
 427 set_default(){
 428     for opt; do
 429         eval : \${$opt:=\$${opt}_default}
 430     done
 431 }
 432
 433 is_in(){
 434     value=$1
 435     shift
 436     for var in $*; do
 437         [ $var = $value ] && return 0
 438     done
 439     return 1
 440 }
 441
 442 check_deps(){
 443     for cfg; do
 444         cfg="${cfg#!}"
 445         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 446         disabled ${cfg}_checking && continue
 447         enable ${cfg}_checking
 448
 449         eval dep_all="\$${cfg}_deps"
 450         eval dep_any="\$${cfg}_deps_any"
 451         eval dep_sel="\$${cfg}_select"
 452         eval dep_sgs="\$${cfg}_suggest"
 453         eval dep_ifa="\$${cfg}_if"
 454         eval dep_ifn="\$${cfg}_if_any"
 455
 456         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 457         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 458         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 459
 460         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 461         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 462         enabled_all  $dep_all || disable $cfg
 463         enabled_any  $dep_any || disable $cfg
 464         disabled_any $dep_sel && disable $cfg
 465
 466         if enabled $cfg; then
 467             eval dep_extralibs="\$${cfg}_extralibs"
 468             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 469             enable_deep $dep_sel
 470             enable_deep_weak $dep_sgs
 471         fi
 472
 473         disable ${cfg}_checking
 474     done
 475 }
 476
 477 print_config(){
 478     pfx=$1
 479     header=$2
 480     makefile=$3
 481     shift 3
 482     for cfg; do
 483         ucname="$(toupper $cfg)"
 484         if enabled $cfg; then
 485             echo "#define ${pfx}${ucname} 1" >> $header
 486             echo "${pfx}${ucname}=yes" >> $makefile
 487         else
 488             echo "#define ${pfx}${ucname} 0" >> $header
 489             echo "!${pfx}${ucname}=yes" >> $makefile
 490         fi
 491     done
 492 }
 493
 494 flags_saved(){
 495     (: ${SAVE_CFLAGS?}) 2> /dev/null
 496 }
 497
 498 save_flags(){
 499     flags_saved && return
 500     SAVE_CFLAGS="$CFLAGS"
 501     SAVE_LDFLAGS="$LDFLAGS"
 502     SAVE_extralibs="$extralibs"
 503 }
 504
 505 restore_flags(){
 506     flags_saved || return
 507     CFLAGS="$SAVE_CFLAGS"
 508     LDFLAGS="$SAVE_LDFLAGS"
 509     extralibs="$SAVE_extralibs"
 510     unset SAVE_CFLAGS
 511     unset SAVE_LDFLAGS
 512     unset SAVE_extralibs
 513 }
 514
 515 temp_cflags(){
 516     save_flags
 517     CFLAGS="$CFLAGS $*"
 518 }
 519
 520 temp_ldflags(){
 521     save_flags
 522     LDFLAGS="$LDFLAGS $*"
 523 }
 524
 525 temp_extralibs(){
 526     save_flags
 527     extralibs="$extralibs $*"
 528 }
 529
 530 append(){
 531     var=$1
 532     shift
 533     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 534     eval "$var=\"\$$var $*\""
 535 }
 536
 537 add_cppflags(){
 538     append CPPFLAGS $($filter_cppflags "$@")
 539 }
 540
 541 add_cflags(){
 542     append CFLAGS $($filter_cflags "$@")
 543 }
 544
 545 add_asflags(){
 546     append ASFLAGS $($filter_asflags "$@")
 547 }
 548
 549 add_ldflags(){
 550     append LDFLAGS "$@"
 551 }
 552
 553 add_extralibs(){
 554     append extralibs "$@"
 555 }
 556
 557 check_cmd(){
 558     log "$@"
 559     "$@" >> $logfile 2>&1
 560 }
 561
 562 check_cc(){
 563     log check_cc "$@"
 564     cat > $TMPC
 565     log_file $TMPC
 566     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 567 }
 568
 569 check_cpp(){
 570     log check_cpp "$@"
 571     cat > $TMPC
 572     log_file $TMPC
 573     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 574 }
 575
 576 check_as(){
 577     log check_as "$@"
 578     cat > $TMPC
 579     log_file $TMPC
 580     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 581 }
 582
 583 check_asm(){
 584     log check_asm "$@"
 585     name="$1"
 586     asm="$2"
 587     shift 2
 588     disable $name
 589     check_as "$@" <<EOF && enable $name
 590 void foo(void){ __asm__ volatile($asm); }
 591 EOF
 592 }
 593
 594 check_yasm(){
 595     log check_yasm "$@"
 596     echo "$1" > $TMPS
 597     log_file $TMPS
 598     shift 1
 599     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 600 }
 601
 602 check_ld(){
 603     log check_ld "$@"
 604     check_cc || return
 605     flags=''
 606     libs=''
 607     for f; do
 608         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 609     done
 610     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 611 }
 612
 613 check_cppflags(){
 614     log check_cppflags "$@"
 615     set -- $($filter_cppflags "$@")
 616     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 617 int x;
 618 EOF
 619 }
 620
 621 check_cflags(){
 622     log check_cflags "$@"
 623     set -- $($filter_cflags "$@")
 624     check_cc "$@" <<EOF && append CFLAGS "$@"
 625 int x;
 626 EOF
 627 }
 628
 629 test_ldflags(){
 630     log test_ldflags "$@"
 631     check_ld "$@" <<EOF
 632 int main(void){ return 0; }
 633 EOF
 634 }
 635
 636 check_ldflags(){
 637     log check_ldflags "$@"
 638     test_ldflags "$@" && add_ldflags "$@"
 639 }
 640
 641 check_header(){
 642     log check_header "$@"
 643     header=$1
 644     shift
 645     disable_safe $header
 646     check_cpp "$@" <<EOF && enable_safe $header
 647 #include <$header>
 648 int x;
 649 EOF
 650 }
 651
 652 check_func(){
 653     log check_func "$@"
 654     func=$1
 655     shift
 656     disable $func
 657     check_ld "$@" <<EOF && enable $func
 658 extern int $func();
 659 int main(void){ $func(); }
 660 EOF
 661 }
 662
 663 check_func_headers(){
 664     log check_func_headers "$@"
 665     headers=$1
 666     func=$2
 667     shift 2
 668     disable $func
 669     incs=""
 670     for hdr in $headers; do
 671         incs="$incs
 672 #include <$hdr>"
 673     done
 674     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 675 $incs
 676 int main(int argc, char **argv){
 677     return (long) $func;
 678 }
 679 EOF
 680 }
 681
 682 check_cpp_condition(){
 683     log check_cpp_condition "$@"
 684     header=$1
 685     condition=$2
 686     check_cpp <<EOF
 687 #include <$header>
 688 #if !($condition)
 689 #error "unsatisfied condition: $condition"
 690 #endif
 691 EOF
 692 }
 693
 694 check_lib(){
 695     log check_lib "$@"
 696     header="$1"
 697     func="$2"
 698     shift 2
 699     temp_extralibs "$@"
 700     check_header $header && check_func $func && add_extralibs "$@"
 701     err=$?
 702     restore_flags
 703     return $err
 704 }
 705
 706 check_lib2(){
 707     log check_lib2 "$@"
 708     headers="$1"
 709     func="$2"
 710     shift 2
 711     temp_extralibs "$@"
 712     check_func_headers "$headers" $func && add_extralibs "$@"
 713     err=$?
 714     restore_flags
 715     return $err
 716 }
 717
 718 check_exec(){
 719     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 720 }
 721
 722 check_exec_crash(){
 723     code=$(cat)
 724
 725     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 726     # are safe but may not be available everywhere.  Thus we use
 727     # raise(SIGTERM) instead.  The check is run in a subshell so we
 728     # can redirect the "Terminated" message from the shell.  SIGBUS
 729     # is not defined by standard C so it is used conditionally.
 730
 731     (check_exec "$@") >> $logfile 2>&1 <<EOF
 732 #include <signal.h>
 733 static void sighandler(int sig){
 734     raise(SIGTERM);
 735 }
 736 int main(void){
 737     signal(SIGILL, sighandler);
 738     signal(SIGFPE, sighandler);
 739     signal(SIGSEGV, sighandler);
 740 #ifdef SIGBUS
 741     signal(SIGBUS, sighandler);
 742 #endif
 743     { $code }
 744 }
 745 EOF
 746 }
 747
 748 check_type(){
 749     log check_type "$@"
 750     headers=$1
 751     type=$2
 752     shift 2
 753     disable_safe "$type"
 754     incs=""
 755     for hdr in $headers; do
 756         incs="$incs
 757 #include <$hdr>"
 758     done
 759     check_cc "$@" <<EOF && enable_safe "$type"
 760 $incs
 761 $type v;
 762 EOF
 763 }
 764
 765 require(){
 766     name="$1"
 767     header="$2"
 768     func="$3"
 769     shift 3
 770     check_lib $header $func "$@" || die "ERROR: $name not found"
 771 }
 772
 773 require2(){
 774     name="$1"
 775     headers="$2"
 776     func="$3"
 777     shift 3
 778     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 779 }
 780
 781 check_foo_config(){
 782     cfg=$1
 783     pkg=$2
 784     header=$3
 785     func=$4
 786     shift 4
 787     disable $cfg
 788     check_cmd ${pkg}-config --version
 789     err=$?
 790     if test "$err" = 0; then
 791         temp_cflags $(${pkg}-config --cflags)
 792         temp_extralibs $(${pkg}-config --libs)
 793         check_lib "$@" $header $func && enable $cfg
 794     fi
 795     return $err
 796 }
 797
 798 check_host_cc(){
 799     log check_host_cc "$@"
 800     cat > $TMPC
 801     log_file $TMPC
 802     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 803 }
 804
 805 check_host_cflags(){
 806     log check_host_cflags "$@"
 807     check_host_cc "$@" <<EOF && append host_cflags "$@"
 808 int x;
 809 EOF
 810 }
 811
 812 apply(){
 813     file=$1
 814     shift
 815     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 816 }
 817
 818 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 819 # system-dependent things.
 820
 821 COMPONENT_LIST="
 822     bsfs
 823     decoders
 824     demuxers
 825     encoders
 826     filters
 827     hwaccels
 828     indevs
 829     muxers
 830     outdevs
 831     parsers
 832     protocols
 833 "
 834
 835 CONFIG_LIST="
 836     $COMPONENT_LIST
 837     aandct
 838     avfilter
 839     avfilter_lavf
 840     avisynth
 841     beos_netserver
 842     bzlib
 843     doc
 844     fastdiv
 845     ffmpeg
 846     ffplay
 847     ffserver
 848     fft
 849     golomb
 850     gpl
 851     gprof
 852     gray
 853     hardcoded_tables
 854     ipv6
 855     libdc1394
 856     libdirac
 857     libfaac
 858     libfaad
 859     libfaadbin
 860     libgsm
 861     libmp3lame
 862     libnut
 863     libopencore_amrnb
 864     libopencore_amrwb
 865     libopenjpeg
 866     libschroedinger
 867     libspeex
 868     libtheora
 869     libvorbis
 870     libx264
 871     libxvid
 872     lpc
 873     mdct
 874     memalign_hack
 875     mlib
 876     mpegaudio_hp
 877     network
 878     nonfree
 879     pic
 880     postproc
 881     powerpc_perf
 882     rdft
 883     runtime_cpudetect
 884     shared
 885     small
 886     static
 887     swscale_alpha
 888     vaapi
 889     vdpau
 890     version3
 891     x11grab
 892     zlib
 893 "
 894
 895 THREADS_LIST='
 896     beosthreads
 897     os2threads
 898     pthreads
 899     w32threads
 900 '
 901
 902 ARCH_LIST='
 903     alpha
 904     arm
 905     avr32
 906     avr32_ap
 907     avr32_uc
 908     bfin
 909     ia64
 910     m68k
 911     mips
 912     mips64
 913     parisc
 914     ppc
 915     ppc64
 916     s390
 917     sh4
 918     sparc
 919     sparc64
 920     x86
 921     x86_32
 922     x86_64
 923 '
 924
 925 ARCH_EXT_LIST='
 926     altivec
 927     amd3dnow
 928     amd3dnowext
 929     armv5te
 930     armv6
 931     armv6t2
 932     armvfp
 933     iwmmxt
 934     mmi
 935     mmx
 936     mmx2
 937     neon
 938     ppc4xx
 939     sse
 940     ssse3
 941     vis
 942 '
 943
 944 HAVE_LIST="
 945     $ARCH_EXT_LIST
 946     $THREADS_LIST
 947     alsa_asoundlib_h
 948     altivec_h
 949     arpa_inet_h
 950     attribute_packed
 951     bigendian
 952     bswap
 953     closesocket
 954     cmov
 955     conio_h
 956     dcbzl
 957     dev_bktr_ioctl_bt848_h
 958     dev_bktr_ioctl_meteor_h
 959     dev_ic_bt8xx_h
 960     dev_video_meteor_ioctl_meteor_h
 961     dev_video_bktr_ioctl_bt848_h
 962     dlfcn_h
 963     dlopen
 964     dos_paths
 965     ebp_available
 966     ebx_available
 967     exp2
 968     exp2f
 969     fast_64bit
 970     fast_clz
 971     fast_cmov
 972     fast_unaligned
 973     fork
 974     getaddrinfo
 975     gethrtime
 976     GetProcessTimes
 977     getrusage
 978     inet_aton
 979     inline_asm
 980     isatty
 981     ldbrx
 982     libdc1394_1
 983     libdc1394_2
 984     llrint
 985     log2
 986     log2f
 987     loongson
 988     lrint
 989     lrintf
 990     lzo1x_999_compress
 991     machine_ioctl_bt848_h
 992     machine_ioctl_meteor_h
 993     malloc_h
 994     memalign
 995     mkstemp
 996     pld
 997     posix_memalign
 998     round
 999     roundf
1000     sdl
1001     sdl_video_size
1002     setmode
1003     socklen_t
1004     soundcard_h
1005     poll_h
1006     struct_addrinfo
1007     struct_sockaddr_storage
1008     sys_mman_h
1009     sys_resource_h
1010     sys_select_h
1011     sys_soundcard_h
1012     sys_videoio_h
1013     ten_operands
1014     termios_h
1015     threads
1016     truncf
1017     vfp_args
1018     VirtualAlloc
1019     winsock2_h
1020     xform_asm
1021     yasm
1022 "
1023
1024 # options emitted with CONFIG_ prefix but not available on command line
1025 CONFIG_EXTRA="
1026     gplv3
1027     lgplv3
1028 "
1029
1030 CMDLINE_SELECT="
1031     $ARCH_EXT_LIST
1032     $CONFIG_LIST
1033     $THREADS_LIST
1034     cross_compile
1035     debug
1036     extra_warnings
1037     logging
1038     optimizations
1039     stripping
1040     yasm
1041 "
1042
1043 PATHS_LIST='
1044     bindir
1045     datadir
1046     incdir
1047     libdir
1048     mandir
1049     prefix
1050     shlibdir
1051 '
1052
1053 CMDLINE_SET="
1054     $PATHS_LIST
1055     arch
1056     as
1057     build_suffix
1058     cc
1059     cpu
1060     cross_prefix
1061     dep_cc
1062     extra_version
1063     host_cc
1064     host_cflags
1065     host_ldflags
1066     host_libs
1067     host_os
1068     ld
1069     logfile
1070     nm
1071     source_path
1072     sysinclude
1073     sysroot
1074     target_exec
1075     target_os
1076     target_path
1077 "
1078
1079 CMDLINE_APPEND="
1080     extra_cflags
1081 "
1082
1083 # code dependency declarations
1084
1085 # architecture extensions
1086 altivec_deps="ppc"
1087 amd3dnow_deps="mmx"
1088 amd3dnowext_deps="amd3dnow"
1089 armv5te_deps="arm"
1090 armv6_deps="arm"
1091 armv6t2_deps="arm"
1092 armvfp_deps="arm"
1093 iwmmxt_deps="arm"
1094 mmi_deps="mips"
1095 mmx_deps="x86"
1096 mmx2_deps="mmx"
1097 neon_deps="arm"
1098 ppc4xx_deps="ppc"
1099 sse_deps="mmx"
1100 ssse3_deps="sse"
1101 vis_deps="sparc"
1102
1103 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1104
1105 need_memalign="altivec neon sse"
1106 inline_asm_deps="!tms470"
1107
1108 # decoders / encoders / hardware accelerators
1109 aac_decoder_select="fft mdct aac_parser"
1110 aac_encoder_select="fft mdct"
1111 ac3_decoder_select="fft mdct ac3_parser"
1112 alac_encoder_select="lpc"
1113 atrac3_decoder_select="fft mdct"
1114 cavs_decoder_select="golomb"
1115 cook_decoder_select="fft mdct"
1116 cscd_decoder_suggest="zlib"
1117 dca_decoder_select="fft mdct"
1118 dnxhd_encoder_select="aandct"
1119 dxa_decoder_select="zlib"
1120 eac3_decoder_select="ac3_decoder"
1121 eamad_decoder_select="aandct"
1122 eatgq_decoder_select="aandct"
1123 eatqi_decoder_select="aandct"
1124 ffv1_decoder_select="golomb"
1125 flac_decoder_select="golomb"
1126 flac_encoder_select="golomb lpc"
1127 flashsv_decoder_select="zlib"
1128 flashsv_encoder_select="zlib"
1129 flv_decoder_select="h263_decoder"
1130 flv_encoder_select="h263_encoder"
1131 h261_encoder_select="aandct"
1132 h263_decoder_select="h263_parser"
1133 h263_encoder_select="aandct"
1134 h263_vaapi_hwaccel_deps="va_va_h"
1135 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1136 h263i_decoder_select="h263_decoder"
1137 h263p_encoder_select="h263_encoder"
1138 h264_decoder_select="golomb"
1139 h264_vaapi_hwaccel_deps="va_va_h"
1140 h264_vaapi_hwaccel_select="vaapi"
1141 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1142 h264_vdpau_decoder_select="vdpau h264_decoder"
1143 imc_decoder_select="fft mdct"
1144 jpegls_decoder_select="golomb"
1145 jpegls_encoder_select="golomb"
1146 ljpeg_encoder_select="aandct"
1147 loco_decoder_select="golomb"
1148 mjpeg_encoder_select="aandct"
1149 mlp_decoder_select="mlp_parser"
1150 mpeg1video_encoder_select="aandct"
1151 mpeg2video_encoder_select="aandct"
1152 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1153 mpeg4_encoder_select="h263_encoder"
1154 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1155 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1156 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1157 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1158 mpeg2_vaapi_hwaccel_deps="va_va_h"
1159 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1160 mpeg4_vaapi_hwaccel_deps="va_va_h"
1161 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1162 mpeg4_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1163 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1164 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1165 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1166 msmpeg4v1_decoder_select="h263_decoder"
1167 msmpeg4v1_encoder_select="h263_encoder"
1168 msmpeg4v2_decoder_select="h263_decoder"
1169 msmpeg4v2_encoder_select="h263_encoder"
1170 msmpeg4v3_decoder_select="h263_decoder"
1171 msmpeg4v3_encoder_select="h263_encoder"
1172 nellymoser_decoder_select="fft mdct"
1173 nellymoser_encoder_select="fft mdct"
1174 png_decoder_select="zlib"
1175 png_encoder_select="zlib"
1176 qdm2_decoder_select="fft mdct rdft"
1177 rv10_decoder_select="h263_decoder"
1178 rv10_encoder_select="h263_encoder"
1179 rv20_decoder_select="h263_decoder"
1180 rv20_encoder_select="h263_encoder"
1181 rv30_decoder_select="golomb"
1182 rv40_decoder_select="golomb"
1183 shorten_decoder_select="golomb"
1184 sonic_decoder_select="golomb"
1185 sonic_encoder_select="golomb"
1186 sonic_ls_encoder_select="golomb"
1187 svq3_decoder_select="golomb"
1188 svq3_decoder_suggest="zlib"
1189 theora_decoder_select="vp3_decoder"
1190 tiff_decoder_suggest="zlib"
1191 tiff_encoder_suggest="zlib"
1192 truehd_decoder_select="mlp_decoder"
1193 tscc_decoder_select="zlib"
1194 vc1_decoder_select="h263_decoder"
1195 vc1_vaapi_hwaccel_deps="va_va_h"
1196 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1197 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1198 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1199 vorbis_decoder_select="fft mdct"
1200 vorbis_encoder_select="fft mdct"
1201 vp6a_decoder_select="vp6_decoder"
1202 vp6f_decoder_select="vp6_decoder"
1203 wmav1_decoder_select="fft mdct"
1204 wmav1_encoder_select="fft mdct"
1205 wmav2_decoder_select="fft mdct"
1206 wmav2_encoder_select="fft mdct"
1207 wmv1_decoder_select="h263_decoder"
1208 wmv1_encoder_select="h263_encoder"
1209 wmv2_decoder_select="h263_decoder"
1210 wmv2_encoder_select="h263_encoder"
1211 wmv3_decoder_select="vc1_decoder"
1212 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1213 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1214 zlib_decoder_select="zlib"
1215 zlib_encoder_select="zlib"
1216 zmbv_decoder_select="zlib"
1217 zmbv_encoder_select="zlib"
1218
1219 # parsers
1220 h264_parser_select="golomb"
1221
1222 # bitstream_filters
1223 aac_adtstoasc_bsf_select="aac_parser"
1224
1225 # external libraries
1226 libdirac_decoder_deps="libdirac !libschroedinger"
1227 libdirac_encoder_deps="libdirac"
1228 libfaac_encoder_deps="libfaac"
1229 libfaad_decoder_deps="libfaad"
1230 libfaadbin_decoder_extralibs='$ldl'
1231 libgsm_decoder_deps="libgsm"
1232 libgsm_encoder_deps="libgsm"
1233 libgsm_ms_decoder_deps="libgsm"
1234 libgsm_ms_encoder_deps="libgsm"
1235 libmp3lame_encoder_deps="libmp3lame"
1236 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1237 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1238 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1239 libopenjpeg_decoder_deps="libopenjpeg"
1240 libschroedinger_decoder_deps="libschroedinger"
1241 libschroedinger_encoder_deps="libschroedinger"
1242 libspeex_decoder_deps="libspeex"
1243 libtheora_encoder_deps="libtheora"
1244 libvorbis_encoder_deps="libvorbis"
1245 libx264_encoder_deps="libx264"
1246 libxvid_encoder_deps="libxvid"
1247
1248 # demuxers / muxers
1249 ac3_demuxer_deps="ac3_parser"
1250 asf_stream_muxer_select="asf_muxer"
1251 avisynth_demuxer_deps="avisynth"
1252 dirac_demuxer_deps="dirac_parser"
1253 eac3_demuxer_select="ac3_parser"
1254 ipod_muxer_select="mov_muxer"
1255 libnut_demuxer_deps="libnut"
1256 libnut_muxer_deps="libnut"
1257 matroska_audio_muxer_select="matroska_muxer"
1258 matroska_demuxer_suggest="zlib bzlib"
1259 mov_demuxer_suggest="zlib"
1260 mp3_demuxer_deps="mpegaudio_parser"
1261 mp4_muxer_select="mov_muxer"
1262 mpegtsraw_demuxer_select="mpegts_demuxer"
1263 mxf_d10_muxer_select="mxf_muxer"
1264 ogg_demuxer_select="golomb"
1265 psp_muxer_select="mov_muxer"
1266 rtsp_demuxer_deps="sdp_demuxer"
1267 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1268 spdif_muxer_select="aac_parser"
1269 tg2_muxer_select="mov_muxer"
1270 tgp_muxer_select="mov_muxer"
1271 w64_demuxer_deps="wav_demuxer"
1272
1273 # indevs / outdevs
1274 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1275 alsa_indev_extralibs="-lasound"
1276 alsa_outdev_deps="alsa_asoundlib_h"
1277 alsa_outdev_extralibs="-lasound"
1278 audio_beos_indev_deps="audio_beos"
1279 audio_beos_indev_extralibs="-lmedia -lbe"
1280 audio_beos_outdev_deps="audio_beos"
1281 audio_beos_outdev_extralibs="-lmedia -lbe"
1282 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1283 dv1394_indev_deps="dv1394 dv_demuxer"
1284 jack_indev_deps="jack_jack_h"
1285 jack_indev_extralibs="-ljack"
1286 libdc1394_indev_deps="libdc1394"
1287 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1288 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1289 v4l_indev_deps="linux_videodev_h"
1290 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1291 vfwcap_indev_deps="capCreateCaptureWindow"
1292 vfwcap_indev_extralibs="-lvfw32"
1293 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1294 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1295
1296 # protocols
1297 gopher_protocol_deps="network"
1298 http_protocol_deps="network"
1299 rtmp_protocol_deps="tcp_protocol"
1300 rtp_protocol_deps="udp_protocol"
1301 tcp_protocol_deps="network"
1302 udp_protocol_deps="network"
1303
1304 # filters
1305 movie_filter_deps="avfilter_lavf"
1306
1307 # programs
1308 ffplay_deps="sdl"
1309 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1310 ffserver_extralibs='$ldl'
1311
1312 doc_deps="texi2html"
1313
1314 # default parameters
1315
1316 logfile="config.err"
1317
1318 # installation paths
1319 prefix_default="/usr/local"
1320 bindir_default='${prefix}/bin'
1321 datadir_default='${prefix}/share/ffmpeg'
1322 incdir_default='${prefix}/include'
1323 libdir_default='${prefix}/lib'
1324 mandir_default='${prefix}/share/man'
1325 shlibdir_default="$libdir_default"
1326
1327 # toolchain
1328 ar="ar"
1329 cc_default="gcc"
1330 cc_version=\"unknown\"
1331 host_cc_default="gcc"
1332 ln_s="ln -sf"
1333 nm_default="nm"
1334 objformat="elf"
1335 ranlib="ranlib"
1336 strip="strip"
1337 yasmexe="yasm"
1338
1339 # machine
1340 arch=$(uname -m)
1341 cpu="generic"
1342
1343 # OS
1344 target_os=$(tolower $(uname -s))
1345 host_os=$target_os
1346
1347 # configurable options
1348 enable debug
1349 enable doc
1350 enable fastdiv
1351 enable ffmpeg
1352 enable ffplay
1353 enable ffserver
1354 enable ipv6
1355 enable mpegaudio_hp
1356 enable network
1357 enable optimizations
1358 enable protocols
1359 enable static
1360 enable stripping
1361 enable swscale_alpha
1362
1363 # build settings
1364 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1365 FFSERVERLDFLAGS=-Wl,-E
1366 LIBPREF="lib"
1367 LIBSUF=".a"
1368 FULLNAME='$(NAME)$(BUILDSUF)'
1369 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1370 SLIBPREF="lib"
1371 SLIBSUF=".so"
1372 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1373 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1374 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1375 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1376
1377 CC_O='-o $@'
1378
1379 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1380 host_libs='-lm'
1381
1382 target_path='.'
1383
1384 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1385 # full relative path for objects in subdirectories for non-recursive Make.
1386 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1387 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1388
1389 # find source path
1390 source_path="$(dirname "$0")"
1391 enable source_path_used
1392 if test -f configure; then
1393     source_path="$(pwd)"
1394     disable source_path_used
1395 else
1396     source_path="$(cd "$source_path"; pwd)"
1397     echo "$source_path" | grep -q '[[:blank:]]' &&
1398         die "Out of tree builds are impossible with whitespace in source path."
1399     test -e "$source_path/config.h" &&
1400         die "Out of tree builds are impossible with config.h in source dir."
1401 fi
1402
1403 for v in "$@"; do
1404     r=${v#*=}
1405     l=${v%"$r"}
1406     r=$(sh_quote "$r")
1407     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1408 done
1409
1410 find_things(){
1411     thing=$1
1412     pattern=$2
1413     file=$source_path/$3
1414     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1415 }
1416
1417 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1418 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1419 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1420 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1421 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1422 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1423 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1424 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1425 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1426 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1427 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1428
1429 enable $ARCH_EXT_LIST \
1430        $DECODER_LIST \
1431        $ENCODER_LIST \
1432        $HWACCEL_LIST \
1433        $PARSER_LIST \
1434        $BSF_LIST \
1435        $DEMUXER_LIST \
1436        $MUXER_LIST \
1437        $FILTER_LIST \
1438        $PROTOCOL_LIST \
1439        $INDEV_LIST \
1440        $OUTDEV_LIST \
1441
1442 die_unknown(){
1443     echo "Unknown option \"$1\"."
1444     echo "See $0 --help for available options."
1445     exit 1
1446 }
1447
1448 show_list() {
1449     suffix=_$1
1450     shift
1451     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1452     exit 0
1453 }
1454
1455 for opt do
1456     optval="${opt#*=}"
1457     case "$opt" in
1458     --extra-ldflags=*) add_ldflags $optval
1459     ;;
1460     --extra-libs=*) add_extralibs $optval
1461     ;;
1462     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1463     ;;
1464     --enable-debug=*) debuglevel="$optval"
1465     ;;
1466     --enable-*=*|--disable-*=*)
1467     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1468     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1469     eval list=\$$(toupper $thing)_LIST
1470     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1471     $action $(filter "$name" $list)
1472     ;;
1473     --enable-?*|--disable-?*)
1474     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1475     if is_in $option $COMPONENT_LIST; then
1476         test $action = disable && action=unset
1477         eval $action \$$(toupper ${option%s})_LIST
1478     elif is_in $option $CMDLINE_SELECT; then
1479         $action $option
1480     else
1481         die_unknown $opt
1482     fi
1483     ;;
1484     --list-*)
1485         NAME="${opt#--list-}"
1486         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1487         NAME=${NAME%s}
1488         eval show_list $NAME \$$(toupper $NAME)_LIST
1489     ;;
1490     --help|-h) show_help
1491     ;;
1492     *)
1493     optname="${opt%%=*}"
1494     optname="${optname#--}"
1495     optname=$(echo "$optname" | sed 's/-/_/g')
1496     if is_in $optname $CMDLINE_SET; then
1497         eval $optname='$optval'
1498     elif is_in $optname $CMDLINE_APPEND; then
1499         append $optname "$optval"
1500     else
1501          die_unknown $opt
1502     fi
1503     ;;
1504     esac
1505 done
1506
1507 disabled logging && logfile=/dev/null
1508
1509 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1510 set >> $logfile
1511
1512 test -n "$cross_prefix" && enable cross_compile
1513
1514 ar="${cross_prefix}${ar}"
1515 cc_default="${cross_prefix}${cc_default}"
1516 nm_default="${cross_prefix}${nm_default}"
1517 ranlib="${cross_prefix}${ranlib}"
1518 strip="${cross_prefix}${strip}"
1519
1520 sysinclude_default="${sysroot}/usr/include"
1521
1522 set_default cc nm sysinclude
1523 enabled cross_compile || host_cc_default=$cc
1524 set_default host_cc
1525
1526 exesuf() {
1527     case $1 in
1528         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1529     esac
1530 }
1531
1532 EXESUF=$(exesuf $target_os)
1533 HOSTEXESUF=$(exesuf $host_os)
1534
1535 # set temporary file name
1536 : ${TMPDIR:=$TEMPDIR}
1537 : ${TMPDIR:=$TMP}
1538 : ${TMPDIR:=/tmp}
1539
1540 if ! check_cmd type mktemp; then
1541     # simple replacement for missing mktemp
1542     # NOT SAFE FOR GENERAL USE
1543     mktemp(){
1544         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1545     }
1546 fi
1547
1548 tmpfile(){
1549     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1550         (set -C; exec > $tmp) 2>/dev/null ||
1551         die "Unable to create temporary file in $TMPDIR."
1552     append TMPFILES $tmp
1553     eval $1=$tmp
1554 }
1555
1556 trap 'rm -f -- $TMPFILES' EXIT
1557 trap exit HUP INT TERM
1558
1559 tmpfile TMPC  .c
1560 tmpfile TMPE  $EXESUF
1561 tmpfile TMPH  .h
1562 tmpfile TMPO  .o
1563 tmpfile TMPS  .S
1564 tmpfile TMPSH .sh
1565
1566 unset -f mktemp
1567
1568 # make sure we can execute files in $TMPDIR
1569 cat > $TMPSH 2>> $logfile <<EOF
1570 #! /bin/sh
1571 EOF
1572 chmod +x $TMPSH >> $logfile 2>&1
1573 if ! $TMPSH >> $logfile 2>&1; then
1574     cat <<EOF
1575 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1576 variable to another directory and make sure that it is not mounted noexec.
1577 EOF
1578     die "Sanity test failed."
1579 fi
1580
1581 filter_cflags=echo
1582 filter_cppflags=echo
1583 filter_asflags=echo
1584
1585 if   $cc -v 2>&1 | grep -qi ^gcc; then
1586     cc_type=gcc
1587     cc_version=__VERSION__
1588     if ! $cc -dumpversion | grep -q '^2\.'; then
1589         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1590         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1591     fi
1592 elif $cc --version 2>/dev/null | grep -q Intel; then
1593     cc_type=icc
1594     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1595     CC_DEPFLAGS='-MMD'
1596     AS_DEPFLAGS='-MMD'
1597 elif $cc -v 2>&1 | grep -q xlc; then
1598     cc_type=xlc
1599     cc_version="AV_STRINGIFY(__IBMC__)"
1600 elif $cc -V 2>/dev/null | grep -q Compaq; then
1601     cc_type=ccc
1602     cc_version="AV_STRINGIFY(__DECC_VER)"
1603     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1604     debuglevel=3
1605     add_ldflags -Wl,-z,now # calls to libots crash without this
1606 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1607     test -d "$sysroot" || die "No valid sysroot specified."
1608     cc_type=armcc
1609     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1610     armcc_conf="$PWD/armcc.conf"
1611     $cc --arm_linux_configure                 \
1612         --arm_linux_config_file="$armcc_conf" \
1613         --configure_sysroot="$sysroot"        \
1614         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1615         die "Error creating armcc configuration file."
1616     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1617     as_default="${cross_prefix}gcc"
1618     CC_DEPFLAGS='-MMD'
1619     AS_DEPFLAGS='-MMD'
1620 elif $cc -version 2>/dev/null | grep -q TMS470; then
1621     cc_type=tms470
1622     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1623     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1624     CC_O='-fr=$(@D)'
1625     as_default="${cross_prefix}gcc"
1626     ld_default="${cross_prefix}gcc"
1627     TMPO=$(basename $TMPC .c).o
1628     append TMPFILES $TMPO
1629     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1630     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1631     AS_DEPFLAGS='-MMD'
1632     filter_cflags=tms470_flags
1633     tms470_flags(){
1634         for flag; do
1635             case $flag in
1636                 -march=*|-mcpu=*)
1637                     case "${flag#*=}" in
1638                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1639                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1640                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1641                         armv6*|arm11*)          echo -mv=6   ;;
1642                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1643                                                 echo -mv=5e  ;;
1644                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1645                     esac
1646                     ;;
1647                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1648                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1649                 -msoft-float)   echo --float_support=vfplib       ;;
1650                 -Os)            echo -O3 -mf=2                    ;;
1651                 -O[0-3])        echo $flag -mf=5                  ;;
1652                 -g)             echo -g -mn                       ;;
1653             esac
1654         done
1655     }
1656 elif $cc -v 2>&1 | grep -q clang; then
1657     cc_type=clang
1658     cc_version=__VERSION__
1659     CC_DEPFLAGS='-MMD'
1660     AS_DEPFLAGS='-MMD'
1661 elif $cc -V 2>&1 | grep -q Sun; then
1662     cc_type=suncc
1663     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1664     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1665     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1666     filter_cflags=suncc_flags
1667     suncc_flags(){
1668         for flag; do
1669             case $flag in
1670                 -march=*|-mcpu=*)
1671                     case "${flag#*=}" in
1672                         native)                   echo -xtarget=native       ;;
1673                         v9)                       echo -xarch=sparc          ;;
1674                         ultrasparc)               echo -xarch=sparcvis       ;;
1675                         ultrasparc3|niagara*)     echo -xarch=sparcvis2      ;;
1676                         i586|pentium)             echo -xchip=pentium        ;;
1677                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1678                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1679                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1680                         pentium4*)          echo -xtarget=pentium4           ;;
1681                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1682                         *-sse3)             echo -xarch=sse3                 ;;
1683                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1684                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1685                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1686                         k8|opteron|athlon64|athlon-fx)
1687                                                   echo -xarch=sse2a          ;;
1688                         athlon*)                  echo -xarch=pentium_proa   ;;
1689                     esac
1690                     ;;
1691                 -std=c99)             echo -xc99              ;;
1692                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1693                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1694                 -Os)                  echo -O5 -xspace        ;;
1695                 -W*,*)                echo $flag              ;;
1696                 -f*-*|-W*)                                    ;;
1697                 *)                    echo $flag              ;;
1698             esac
1699         done
1700     }
1701 fi
1702
1703 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1704
1705 : ${as_default:=$cc}
1706 : ${dep_cc_default:=$cc}
1707 : ${ld_default:=$cc}
1708 set_default as dep_cc ld
1709
1710 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1711 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1712
1713 add_cflags $extra_cflags
1714 add_asflags $extra_cflags
1715
1716 if test -n "$sysroot"; then
1717     case "$cc_type" in
1718         gcc)
1719             add_cppflags --sysroot="$sysroot"
1720             add_ldflags --sysroot="$sysroot"
1721         ;;
1722         tms470)
1723             add_cppflags -I"$sysinclude"
1724             add_ldflags  --sysroot="$sysroot"
1725         ;;
1726         clang)
1727             add_cppflags -isysroot="$sysroot"
1728             add_ldflags -isysroot="$sysroot"
1729         ;;
1730     esac
1731 fi
1732
1733 if test "$cpu" = host; then
1734     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1735
1736     case "$cc_type" in
1737         gcc)
1738             check_native(){
1739                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1740                 awk "/$1=/{ match(\$0, /$1=(\\w+)/, a);print a[1];exit }" $TMPE
1741             }
1742             cpu=$(check_native -march || check_native -mcpu)
1743         ;;
1744     esac
1745
1746     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1747 fi
1748
1749 # Add processor-specific flags
1750 case $cpu in
1751     601|ppc601|PowerPC601)
1752         cpuflags="-mcpu=601"
1753     ;;
1754     603*|ppc603*|PowerPC603*)
1755         cpuflags="-mcpu=603"
1756     ;;
1757     604*|ppc604*|PowerPC604*)
1758         cpuflags="-mcpu=604"
1759     ;;
1760     G3|g3|75*|ppc75*|PowerPC75*)
1761         cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1762     ;;
1763     G4|g4|745*|ppc745*|PowerPC745*)
1764         cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1765     ;;
1766     74*|ppc74*|PowerPC74*)
1767         cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1768     ;;
1769     G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1770         cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1771     ;;
1772     Cell|CELL|cell)
1773         cpuflags="-mcpu=cell"
1774         enable ldbrx
1775     ;;
1776     # targets that do NOT support conditional mov (cmov)
1777     i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1778         cpuflags="-march=$cpu"
1779         disable cmov
1780     ;;
1781     # targets that do support conditional mov (cmov)
1782     i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
1783         cpuflags="-march=$cpu"
1784         enable cmov
1785         enable fast_cmov
1786     ;;
1787     # targets that do support conditional mov but on which it's slow
1788     pentium4|pentium4m|prescott|nocona)
1789         cpuflags="-march=$cpu"
1790         enable cmov
1791         disable fast_cmov
1792     ;;
1793     sparc64)
1794         cpuflags="-mcpu=v9"
1795     ;;
1796     arm11*|cortex*)
1797         cpuflags="-mcpu=$cpu"
1798         enable fast_unaligned
1799     ;;
1800     armv[67]*)
1801         cpuflags="-march=$cpu"
1802         enable fast_unaligned
1803     ;;
1804     armv*)
1805         cpuflags="-march=$cpu"
1806     ;;
1807     arm*)
1808         cpuflags="-mcpu=$cpu"
1809     ;;
1810     ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1811         enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1812     ;;
1813     bf*)
1814         cpuflags="-mcpu=$cpu"
1815     ;;
1816     mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1817         cpuflags="-march=$cpu"
1818     ;;
1819     ap7[02]0[0-2])
1820         subarch="avr32_ap"
1821         cpuflags="-mpart=$cpu"
1822     ;;
1823     ap)
1824         subarch="avr32_ap"
1825         cpuflags="-march=$cpu"
1826     ;;
1827     uc3[ab]*)
1828         subarch="avr32_uc"
1829         cpuflags="-mcpu=$cpu"
1830     ;;
1831     uc)
1832         subarch="avr32_uc"
1833         cpuflags="-march=$cpu"
1834     ;;
1835     generic)
1836     ;;
1837     *)
1838         echo "WARNING: Unknown CPU \"$cpu\", ignored."
1839     ;;
1840 esac
1841
1842 add_cflags $cpuflags
1843 add_asflags $cpuflags
1844
1845 # compiler sanity check
1846 check_exec <<EOF
1847 int main(void){ return 0; }
1848 EOF
1849 if test "$?" != 0; then
1850     echo "$cc is unable to create an executable file."
1851     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1852         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1853         echo "Only do this if you know what cross compiling means."
1854     fi
1855     die "C compiler test failed."
1856 fi
1857
1858 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1859 check_cflags -std=c99
1860 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1861 #include <stdlib.h>
1862 EOF
1863 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1864 #include <stdlib.h>
1865 EOF
1866
1867 check_host_cflags -std=c99
1868
1869 case "$arch" in
1870     alpha)
1871         arch="alpha"
1872         enable fast_64bit
1873         check_cflags -mieee
1874         spic=$shared
1875     ;;
1876     arm|armv[4567]*l)
1877         arch="arm"
1878     ;;
1879     avr32)
1880     ;;
1881     bfin)
1882         arch="bfin"
1883     ;;
1884     ia64)
1885         arch="ia64"
1886         enable fast_64bit
1887         spic=$shared
1888         # HACK: currently fails to build if .bss is > 4MB and shared libs are built
1889         enabled shared && enable_weak hardcoded_tables
1890     ;;
1891     m68k)
1892         arch="m68k"
1893     ;;
1894     mips|mipsel|IP*)
1895         arch="mips"
1896         spic=$shared
1897     ;;
1898     mips64)
1899         arch="mips"
1900         subarch="mips64"
1901         enable fast_64bit
1902         spic=$shared
1903     ;;
1904     parisc|hppa)
1905         arch="parisc"
1906         spic=$shared
1907     ;;
1908     parisc64|hppa64)
1909         arch="parisc"
1910         enable fast_64bit
1911         spic=$shared
1912     ;;
1913     "Power Macintosh"|ppc|powerpc)
1914         arch="ppc"
1915         enable fast_unaligned
1916     ;;
1917     ppc64)
1918         arch="ppc"
1919         subarch="ppc64"
1920         enable fast_64bit
1921         enable fast_unaligned
1922     ;;
1923     s390|s390x)
1924         arch="s390"
1925     ;;
1926     sh4|sh)
1927         arch="sh4"
1928     ;;
1929     sparc)
1930         arch="sparc"
1931         spic=$shared
1932     ;;
1933     sun4u|sparc64)
1934         arch="sparc"
1935         subarch="sparc64"
1936         enable fast_64bit
1937         spic=$shared
1938     ;;
1939     i386|i486|i586|i686|i86pc|BePC|x86_64|amd64)
1940         arch="x86"
1941         subarch="x86_32"
1942         enable fast_unaligned
1943         check_cc <<EOF && enable fast_64bit && subarch="x86_64" && spic=$shared
1944         int test[(int)sizeof(char*) - 7];
1945 EOF
1946         if test "$subarch" = "x86_64"; then
1947             enable cmov
1948             enable fast_cmov
1949         fi
1950     ;;
1951     *)
1952         arch="unknown"
1953     ;;
1954 esac
1955
1956 enable $arch $subarch
1957 enabled spic && enable pic
1958 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
1959
1960 # OS specific
1961 case $target_os in
1962     beos|haiku|zeta)
1963         prefix_default="$HOME/config"
1964         # 3 gcc releases known for BeOS, each with ugly bugs
1965         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1966         case "$gcc_version" in
1967           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1968             disable mmx
1969             ;;
1970           *20010315*) echo "BeBits gcc"
1971             add_cflags -fno-expensive-optimizations
1972             ;;
1973         esac
1974         SHFLAGS=-nostart
1975         # enable BeOS things
1976         enable audio_beos
1977         # no need for libm, but the inet stuff
1978         # Check for BONE
1979         # XXX: actually should check for NOT net_server
1980         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1981             network_extralibs="-lbind -lsocket"
1982         else
1983             enable beos_netserver
1984             network_extralibs="-lnet"
1985         fi ;;
1986     sunos)
1987         FFSERVERLDFLAGS=""
1988         SHFLAGS='-shared -Wl,-h,$$(@F)'
1989         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
1990         network_extralibs="-lsocket -lnsl"
1991         add_cppflags -D__EXTENSIONS__
1992         ;;
1993     netbsd)
1994         oss_indev_extralibs="-lossaudio"
1995         oss_outdev_extralibs="-lossaudio"
1996         ;;
1997     openbsd)
1998         enable malloc_aligned
1999         # On OpenBSD 4.5. the compiler does not use PIC unless
2000         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2001         # however the generated executable will not do anything
2002         # (simply quits with exit-code 1, no crash, no output).
2003         # Thus explicitly enable PIC here.
2004         enable pic
2005         SHFLAGS='-shared'
2006         oss_indev_extralibs="-lossaudio"
2007         oss_outdev_extralibs="-lossaudio"
2008         ;;
2009     freebsd|dragonfly)
2010         enable malloc_aligned
2011         ;;
2012     bsd/os)
2013         osextralibs="-lpoll -lgnugetopt"
2014         strip="strip -d"
2015         ;;
2016     darwin)
2017         enable malloc_aligned
2018         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2019         strip="strip -x"
2020         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2021         SLIBSUF=".dylib"
2022         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2023         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2024         FFSERVERLDFLAGS=-Wl,-bind_at_load
2025         objformat="macho"
2026         enabled x86_64 && objformat="macho64"
2027         enabled_any pic shared ||
2028             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2029         ;;
2030     mingw32*)
2031         # Only WinXP or greater are supported
2032         add_cflags -D_WIN32_WINNT=0x0501
2033         if test $target_os = "mingw32ce"; then
2034             disable network
2035         else
2036             target_os=mingw32
2037         fi
2038         LIBTARGET=i386
2039         if enabled x86_64; then
2040             enable malloc_aligned
2041             LIBTARGET=x64
2042         elif enabled arm; then
2043             LIBTARGET=arm
2044         fi
2045         shlibdir_default="$bindir_default"
2046         disable ffserver
2047         SLIBPREF=""
2048         SLIBSUF=".dll"
2049         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2050         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2051         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2052         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2053             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2054             install -d "$(LIBDIR)"; \
2055             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2056         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2057         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2058         objformat="win32"
2059         enable dos_paths
2060         check_cflags -fno-common
2061         if ! enabled x86_64; then
2062             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2063                 die "ERROR: MinGW runtime version must be >= 3.15."
2064             enabled_any avisynth vfwcap_indev &&
2065                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2066                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2067             fi
2068         ;;
2069     cygwin*)
2070         target_os=cygwin
2071         shlibdir_default="$bindir_default"
2072         SLIBPREF="cyg"
2073         SLIBSUF=".dll"
2074         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2075         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2076         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2077         objformat="win32"
2078         enable dos_paths
2079         check_cflags -fno-common
2080         ;;
2081     *-dos|freedos|opendos)
2082         disable ffplay ffserver
2083         disable $INDEV_LIST $OUTDEV_LIST
2084         network_extralibs="-lsocket"
2085         objformat="coff"
2086         enable dos_paths
2087         ;;
2088     linux)
2089         enable dv1394
2090         ;;
2091     irix*)
2092         target_os=irix
2093         ranlib="echo ignoring ranlib"
2094         ;;
2095     os/2*)
2096         strip="lxlite"
2097         ln_s="cp -f"
2098         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2099         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2100         FFSERVERLDFLAGS=""
2101         LIBSUF="_s.a"
2102         SLIBPREF=""
2103         SLIBSUF=".dll"
2104         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2105         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2106         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2107           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2108           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2109           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2110           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2111           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2112         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2113           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2114         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2115         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2116         enable dos_paths
2117         ;;
2118     gnu/kfreebsd)
2119         ;;
2120     gnu)
2121         ;;
2122
2123     *)
2124         die "Unknown OS '$target_os'."
2125         ;;
2126 esac
2127
2128 set_default $PATHS_LIST
2129
2130 add_extralibs $osextralibs
2131
2132 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2133 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2134
2135 # we need to build at least one lib type
2136 if ! enabled_any static shared; then
2137     cat <<EOF
2138 At least one library type must be built.
2139 Specify --enable-static to build the static libraries or --enable-shared to
2140 build the shared libraries as well. To only build the shared libraries specify
2141 --disable-static in addition to --enable-shared.
2142 EOF
2143     exit 1;
2144 fi
2145
2146 disabled static && LIBNAME=""
2147
2148 if enabled_any libfaad libfaadbin ; then
2149     if check_header faad.h; then
2150         check_cc <<EOF
2151 #include <faad.h>
2152 #ifndef FAAD2_VERSION
2153 ok faad1
2154 #endif
2155 int main(void) { return 0; }
2156 EOF
2157         test $? = 0 && enable libfaad2
2158     else
2159         die "FAAD test failed."
2160     fi
2161 fi
2162
2163
2164 die_license_disabled() {
2165     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2166 }
2167
2168 die_license_disabled gpl libfaad2
2169 die_license_disabled gpl libx264
2170 die_license_disabled gpl libxvid
2171 die_license_disabled gpl postproc
2172 die_license_disabled gpl x11grab
2173
2174 die_license_disabled nonfree libfaac
2175
2176 die_license_disabled version3 libopencore_amrnb
2177 die_license_disabled version3 libopencore_amrwb
2178
2179 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2180
2181 check_deps $ARCH_EXT_LIST
2182
2183 disabled optimizations || check_cflags -fomit-frame-pointer
2184
2185 enable_pic() {
2186     enable pic
2187     add_cppflags -DPIC
2188     add_cflags   -fPIC
2189     add_asflags  -fPIC
2190 }
2191
2192 enabled pic && enable_pic
2193
2194 check_cc <<EOF || die "Symbol mangling check failed."
2195 int ff_extern;
2196 EOF
2197 sym=$($nm -P -g $TMPO | grep ff_extern)
2198 extern_prefix=${sym%%ff_extern*}
2199
2200 check_cc <<EOF && enable inline_asm
2201 void foo(void) { __asm__ volatile ("" ::); }
2202 EOF
2203
2204 _restrict=
2205 for restrict_keyword in restrict __restrict__ __restrict; do
2206     check_cc <<EOF && _restrict=$restrict_keyword && break
2207 void foo(char * $restrict_keyword p);
2208 EOF
2209 done
2210
2211 check_cc <<EOF && enable attribute_packed
2212 struct { int x; } __attribute__((packed)) x;
2213 EOF
2214
2215 check_cc <<EOF || die "endian test failed"
2216 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2217 EOF
2218 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2219
2220 if enabled arm; then
2221
2222     check_cflags -marm
2223
2224     check_ld <<EOF && enable vfp_args
2225 __asm__ (".eabi_attribute 28, 1");
2226 int main(void) { return 0; }
2227 EOF
2228
2229     # We have to check if pld is a nop and disable it.
2230     check_asm pld '"pld [r0]"'
2231
2232     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2233     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2234     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2235     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2236     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2237     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2238
2239     enabled_all armv6t2 shared !pic && enable_pic
2240
2241 elif enabled mips; then
2242
2243     check_asm loongson '"dmult.g $1, $2, $3"'
2244     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2245
2246 elif enabled ppc; then
2247
2248     check_asm dcbzl     '"dcbzl 0, 1"'
2249     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2250     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2251
2252     # AltiVec flags: The FSF version of GCC differs from the Apple version
2253     if enabled altivec; then
2254         check_cflags -maltivec -mabi=altivec &&
2255         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2256         check_cflags -faltivec
2257
2258         # check if our compiler supports Motorola AltiVec C API
2259         check_cc <<EOF || disable altivec
2260 $inc_altivec_h
2261 int main(void) {
2262     vector signed int v1, v2, v3;
2263     v1 = vec_add(v2,v3);
2264     return 0;
2265 }
2266 EOF
2267
2268         # check if our compiler supports braces for vector declarations
2269         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2270 $inc_altivec_h
2271 int main (void) { (vector int) {1}; return 0; }
2272 EOF
2273     fi
2274
2275 elif enabled sparc; then
2276
2277     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2278         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2279
2280 elif enabled x86; then
2281
2282     # check whether EBP is available on x86
2283     # As 'i' is stored on the stack, this program will crash
2284     # if the base pointer is used to access it because the
2285     # base pointer is cleared in the inline assembly code.
2286     check_exec_crash <<EOF && enable ebp_available
2287     volatile int i=0;
2288     __asm__ volatile (
2289         "xorl %%ebp, %%ebp"
2290     ::: "%ebp");
2291     return i;
2292 EOF
2293
2294     # check whether EBX is available on x86
2295     check_asm ebx_available '""::"b"(0)' &&
2296         check_asm ebx_available '"":::"%ebx"'
2297
2298     # check whether more than 10 operands are supported
2299     check_cc <<EOF && enable ten_operands
2300 int main(void) {
2301     int x=0;
2302     __asm__ volatile(
2303         ""
2304         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2305     );
2306     return 0;
2307 }
2308 EOF
2309
2310     # check whether binutils is new enough to compile SSSE3/MMX2
2311     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2312     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2313
2314     check_asm bswap '"bswap %%eax" ::: "%eax"'
2315
2316     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2317     enabled     x86_64        && append YASMFLAGS "-m amd64"
2318     enabled     pic           && append YASMFLAGS "-DPIC"
2319     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2320     case "$objformat" in
2321         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2322     esac
2323     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2324
2325     case "$cpu" in
2326         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2327             disable fast_clz
2328         ;;
2329     esac
2330
2331 fi
2332
2333 if check_func dlopen; then
2334     ldl=
2335 elif check_func dlopen -ldl; then
2336     ldl=-ldl
2337 fi
2338
2339 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2340 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2341
2342 check_func  fork
2343 check_func  getaddrinfo $network_extralibs
2344 check_func  gethrtime
2345 check_func  getrusage
2346 check_func  inet_aton $network_extralibs
2347 check_func  isatty
2348 check_func  memalign
2349 check_func  mkstemp
2350 check_func  posix_memalign
2351 check_func_headers io.h setmode
2352 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2353 check_func_headers windows.h GetProcessTimes
2354 check_func_headers windows.h VirtualAlloc
2355
2356 check_header conio.h
2357 check_header dlfcn.h
2358 check_header malloc.h
2359 check_header poll.h
2360 check_header sys/mman.h
2361 check_header sys/resource.h
2362 check_header sys/select.h
2363 check_header termios.h
2364 check_header vdpau/vdpau.h
2365 check_header vdpau/vdpau_x11.h
2366 check_header X11/extensions/XvMClib.h
2367
2368 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2369      enabled_any $need_memalign ; then
2370     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2371 fi
2372
2373 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2374 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2375
2376 # check for some common methods of building with pthread support
2377 # do this before the optional library checks as some of them require pthreads
2378 if enabled pthreads; then
2379     if check_func pthread_create; then
2380         :
2381     elif check_func pthread_create -pthread; then
2382         add_cflags -pthread
2383         add_extralibs -pthread
2384     elif check_func pthread_create -pthreads; then
2385         add_cflags -pthreads
2386         add_extralibs -pthreads
2387     elif check_func pthread_create -lpthreadGC2; then
2388         add_extralibs -lpthreadGC2
2389     elif ! check_lib pthread.h pthread_create -lpthread; then
2390         die "ERROR: can't find pthreads library"
2391     fi
2392 fi
2393
2394 for thread in $THREADS_LIST; do
2395     if enabled $thread; then
2396         test -n "$thread_type" &&
2397             die "ERROR: Only one thread type must be selected." ||
2398             thread_type="$thread"
2399     fi
2400 done
2401
2402 check_lib math.h sin -lm
2403 check_lib va/va.h vaInitialize -lva
2404
2405 check_func exp2
2406 check_func exp2f
2407 check_func llrint
2408 check_func log2
2409 check_func log2f
2410 check_func lrint
2411 check_func lrintf
2412 check_func round
2413 check_func roundf
2414 check_func truncf
2415
2416 # these are off by default, so fail if requested and not available
2417 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2418 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2419                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2420                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2421 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2422 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2423 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2424 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2425 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2426 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2427 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2428 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2429 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2430                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2431 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2432 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2433 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2434 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2435                       { check_cpp_condition x264.h "X264_BUILD >= 79" ||
2436                         die "ERROR: libx264 version must be >= 0.79."; }
2437 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2438 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2439
2440 # libdc1394 check
2441 if enabled libdc1394; then
2442     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2443         enable libdc1394_2; } ||
2444     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2445         enable libdc1394_1; } ||
2446     die "ERROR: No version of libdc1394 found "
2447 fi
2448
2449 disable sdl_too_old
2450 disable sdl
2451 SDL_CONFIG="${cross_prefix}sdl-config"
2452 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2453     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2454     sdl_libs=$("${SDL_CONFIG}" --libs)
2455     temp_cflags $sdl_cflags
2456     temp_extralibs $sdl_libs
2457     if check_lib2 SDL.h SDL_Init; then
2458         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2459         if test "$_sdlversion" -lt 121 ; then
2460             enable sdl_too_old
2461         else
2462             enable sdl
2463             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2464 #include <SDL.h>
2465 int main(int argc, char **argv){
2466     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2467     int w = vi->current_w;
2468     return 0;
2469 }
2470 EOF
2471         fi
2472     fi
2473     restore_flags
2474 fi
2475
2476 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2477
2478 if enabled network; then
2479     check_type "sys/types.h sys/socket.h" socklen_t
2480     check_type netdb.h "struct addrinfo"
2481     check_type sys/socket.h "struct sockaddr_storage"
2482     # Prefer arpa/inet.h over winsock2
2483     if check_header arpa/inet.h ; then
2484         check_func closesocket
2485     elif check_header winsock2.h ; then
2486         check_func_headers winsock2.h closesocket -lws2 && \
2487             network_extralibs="-lws2" || \
2488         { check_func_headers winsock2.h closesocket -lws2_32 && \
2489             network_extralibs="-lws2_32"; }
2490         check_type ws2tcpip.h socklen_t
2491         check_type ws2tcpip.h "struct addrinfo"
2492         check_type ws2tcpip.h "struct sockaddr_storage"
2493     else
2494         disable network
2495     fi
2496 fi
2497
2498 enabled_all network ipv6 && check_ld <<EOF || disable ipv6
2499 #include <sys/types.h>
2500 #include <sys/socket.h>
2501 #include <netinet/in.h>
2502 #include <netdb.h>
2503 int main(void) {
2504     struct sockaddr_storage saddr;
2505     struct ipv6_mreq mreq6;
2506     getaddrinfo(0,0,0,0);
2507     getnameinfo(0,0,0,0,0,0,0);
2508     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2509 }
2510 EOF
2511
2512 check_header linux/videodev.h
2513 check_header linux/videodev2.h
2514 check_header sys/videoio.h
2515
2516 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2517
2518 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2519 { check_header dev/bktr/ioctl_meteor.h &&
2520   check_header dev/bktr/ioctl_bt848.h; } ||
2521 { check_header machine/ioctl_meteor.h &&
2522   check_header machine/ioctl_bt848.h; } ||
2523 { check_header dev/video/meteor/ioctl_meteor.h &&
2524   check_header dev/video/bktr/ioctl_bt848.h; } ||
2525 check_header dev/ic/bt8xx.h
2526
2527 check_header sys/soundcard.h
2528 check_header soundcard.h
2529
2530 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2531
2532 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2533
2534 enabled x11grab                         &&
2535 check_header X11/Xlib.h                 &&
2536 check_header X11/extensions/XShm.h      &&
2537 check_header X11/extensions/Xfixes.h    &&
2538 check_func XOpenDisplay -lX11           &&
2539 check_func XShmCreateImage -lX11 -lXext &&
2540 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2541
2542 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2543 check_cpp_condition \
2544     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2545     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2546       disable vdpau; }
2547 fi
2548
2549 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2550
2551 # add some useful compiler flags if supported
2552 check_cflags -Wdeclaration-after-statement
2553 check_cflags -Wall
2554 check_cflags -Wno-switch
2555 check_cflags -Wdisabled-optimization
2556 check_cflags -Wpointer-arith
2557 check_cflags -Wredundant-decls
2558 check_cflags -Wno-pointer-sign
2559 check_cflags -Wcast-qual
2560 check_cflags -Wwrite-strings
2561 check_cflags -Wtype-limits
2562 check_cflags -Wundef
2563 enabled extra_warnings && check_cflags -Winline
2564
2565 # add some linker flags
2566 check_ldflags -Wl,--warn-common
2567 check_ldflags -Wl,--as-needed
2568 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2569 check_ldflags -Wl,-Bsymbolic
2570
2571 if enabled small; then
2572     check_cflags -Os            # not all compilers support -Os
2573     optimizations="small"
2574 elif enabled optimizations; then
2575     if enabled xlc; then
2576         add_cflags  -O5
2577         add_ldflags -O5
2578     elif enabled suncc; then
2579         add_cflags -O5
2580     elif enabled ccc; then
2581         add_cflags -fast
2582     else
2583         add_cflags -O3
2584     fi
2585 fi
2586 check_cflags -fno-math-errno
2587 check_cflags -fno-signed-zeros
2588
2589 if enabled icc; then
2590     # Just warnings, no remarks
2591     check_cflags -w1
2592     # -wd: Disable following warnings
2593     # 144, 167, 556: -Wno-pointer-sign
2594     # 10006: ignoring unknown option -fno-signed-zeros
2595     # 10156: ignoring option '-W'; no argument required
2596     check_cflags -wd144,167,556,10006,10156
2597     # 11030: Warning unknown option --as-needed
2598     # 10156: ignoring option '-export'; no argument required
2599     check_ldflags -wd10156,11030
2600     # Allow to compile with optimizations
2601     check_ldflags -march=$cpu
2602     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2603     enable ebp_available
2604 elif enabled ccc; then
2605     # disable some annoying warnings
2606     add_cflags -msg_disable cvtu32to64
2607     add_cflags -msg_disable embedcomment
2608     add_cflags -msg_disable needconstext
2609     add_cflags -msg_disable nomainieee
2610     add_cflags -msg_disable ptrmismatch1
2611     add_cflags -msg_disable unreachcode
2612 elif enabled gcc; then
2613     check_cflags -fno-tree-vectorize
2614 elif enabled clang; then
2615     check_cflags -Qunused-arguments
2616 fi
2617
2618 if enabled gprof; then
2619     add_cflags  -p
2620     add_ldflags -p
2621 fi
2622
2623 # Find out if the .align argument is a power of two or not.
2624 check_asm asmalign_pot '".align 3"'
2625
2626 enabled_any $DECODER_LIST      && enable decoders
2627 enabled_any $ENCODER_LIST      && enable encoders
2628 enabled_any $HWACCEL_LIST      && enable hwaccels
2629 enabled_any $BSF_LIST          && enable bsfs
2630 enabled_any $DEMUXER_LIST      && enable demuxers
2631 enabled_any $MUXER_LIST        && enable muxers
2632 enabled_any $FILTER_LIST       && enable filters
2633 enabled_any $INDEV_LIST        && enable indevs
2634 enabled_any $OUTDEV_LIST       && enable outdevs
2635 enabled_any $PROTOCOL_LIST     && enable protocols
2636
2637 enabled_any $THREADS_LIST      && enable threads
2638
2639 check_deps $CONFIG_LIST       \
2640            $CONFIG_EXTRA      \
2641            $HAVE_LIST         \
2642            $DECODER_LIST      \
2643            $ENCODER_LIST      \
2644            $HWACCEL_LIST      \
2645            $PARSER_LIST       \
2646            $BSF_LIST          \
2647            $DEMUXER_LIST      \
2648            $MUXER_LIST        \
2649            $FILTER_LIST       \
2650            $INDEV_LIST        \
2651            $OUTDEV_LIST       \
2652            $PROTOCOL_LIST     \
2653
2654 echo "install prefix            $prefix"
2655 echo "source path               $source_path"
2656 echo "C compiler                $cc"
2657 echo ".align is power-of-two    $asmalign_pot"
2658 echo "ARCH                      $arch ($cpu)"
2659 if test "$build_suffix" != ""; then
2660     echo "build suffix              $build_suffix"
2661 fi
2662 if test "$extra_version" != ""; then
2663     echo "version string suffix     $extra_version"
2664 fi
2665 echo "big-endian                ${bigendian-no}"
2666 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2667 if enabled x86; then
2668     echo "yasm                      ${yasm-no}"
2669     echo "MMX enabled               ${mmx-no}"
2670     echo "MMX2 enabled              ${mmx2-no}"
2671     echo "3DNow! enabled            ${amd3dnow-no}"
2672     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2673     echo "SSE enabled               ${sse-no}"
2674     echo "SSSE3 enabled             ${ssse3-no}"
2675     echo "CMOV enabled              ${cmov-no}"
2676     echo "CMOV is fast              ${fast_cmov-no}"
2677     echo "EBX available             ${ebx_available-no}"
2678     echo "EBP available             ${ebp_available-no}"
2679     echo "10 operands supported     ${ten_operands-no}"
2680 fi
2681 if enabled arm; then
2682     echo "ARMv5TE enabled           ${armv5te-no}"
2683     echo "ARMv6 enabled             ${armv6-no}"
2684     echo "ARMv6T2 enabled           ${armv6t2-no}"
2685     echo "ARM VFP enabled           ${armvfp-no}"
2686     echo "IWMMXT enabled            ${iwmmxt-no}"
2687     echo "NEON enabled              ${neon-no}"
2688 fi
2689 if enabled mips; then
2690     echo "MMI enabled               ${mmi-no}"
2691 fi
2692 if enabled ppc; then
2693     echo "AltiVec enabled           ${altivec-no}"
2694     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2695     echo "dcbzl available           ${dcbzl-no}"
2696     echo "performance report        ${powerpc_perf-no}"
2697 fi
2698 if enabled sparc; then
2699     echo "VIS enabled               ${vis-no}"
2700 fi
2701 echo "gprof enabled             ${gprof-no}"
2702 echo "debug symbols             ${debug-no}"
2703 echo "strip symbols             ${stripping-no}"
2704 echo "optimizations             ${optimizations-no}"
2705 echo "static                    ${static-no}"
2706 echo "shared                    ${shared-no}"
2707 echo "postprocessing support    ${postproc-no}"
2708 echo "new filter support        ${avfilter-no}"
2709 echo "filters using lavformat   ${avfilter_lavf-no}"
2710 echo "network support           ${network-no}"
2711 if enabled network; then
2712     echo "IPv6 support              ${ipv6-no}"
2713 fi
2714 echo "threading support         ${thread_type-no}"
2715 echo "SDL support               ${sdl-no}"
2716 if enabled sdl_too_old; then
2717     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2718 fi
2719 echo "Sun medialib support      ${mlib-no}"
2720 echo "AVISynth enabled          ${avisynth-no}"
2721 echo "libdc1394 support         ${libdc1394-no}"
2722 echo "libdirac enabled          ${libdirac-no}"
2723 echo "libfaac enabled           ${libfaac-no}"
2724 echo "libfaad enabled           ${libfaad-no}"
2725 echo "libfaad dlopened          ${libfaadbin-no}"
2726 echo "libgsm enabled            ${libgsm-no}"
2727 echo "libmp3lame enabled        ${libmp3lame-no}"
2728 echo "libnut enabled            ${libnut-no}"
2729 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2730 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2731 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2732 echo "libschroedinger enabled   ${libschroedinger-no}"
2733 echo "libspeex enabled          ${libspeex-no}"
2734 echo "libtheora enabled         ${libtheora-no}"
2735 echo "libvorbis enabled         ${libvorbis-no}"
2736 echo "libx264 enabled           ${libx264-no}"
2737 echo "libxvid enabled           ${libxvid-no}"
2738 echo "zlib enabled              ${zlib-no}"
2739 echo "bzlib enabled             ${bzlib-no}"
2740 echo
2741
2742 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2743     echo "Enabled ${type}s:"
2744     eval list=\$$(toupper $type)_LIST
2745     for part in $list; do
2746         enabled $part && echo ${part%_*}
2747     done | sort | pr -3 -t
2748     echo
2749 done
2750
2751 license="LGPL version 2.1 or later"
2752 if enabled nonfree; then
2753     license="nonfree and unredistributable"
2754 elif enabled gplv3; then
2755     license="GPL version 3 or later"
2756 elif enabled lgplv3; then
2757     license="LGPL version 3 or later"
2758 elif enabled gpl; then
2759     license="GPL version 2 or later"
2760 fi
2761
2762 echo "License: $license"
2763
2764 echo "Creating config.mak and config.h..."
2765
2766 enabled stripping || strip="echo skipping strip"
2767
2768 cat > config.mak <<EOF
2769 # Automatically generated by configure - do not modify!
2770 ifndef FFMPEG_CONFIG_MAK
2771 FFMPEG_CONFIG_MAK=1
2772 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2773 prefix=$prefix
2774 LIBDIR=\$(DESTDIR)$libdir
2775 SHLIBDIR=\$(DESTDIR)$shlibdir
2776 INCDIR=\$(DESTDIR)$incdir
2777 BINDIR=\$(DESTDIR)$bindir
2778 DATADIR=\$(DESTDIR)$datadir
2779 MANDIR=\$(DESTDIR)$mandir
2780 SRC_PATH="$source_path"
2781 SRC_PATH_BARE=$source_path
2782 BUILD_ROOT="$PWD"
2783 ARCH=$arch
2784 CC=$cc
2785 AS=$as
2786 LD=$ld
2787 DEPCC=$dep_cc
2788 YASM=$yasmexe
2789 AR=$ar
2790 RANLIB=$ranlib
2791 LN_S=$ln_s
2792 STRIP=$strip
2793 CPPFLAGS=$CPPFLAGS
2794 CFLAGS=$CFLAGS
2795 ASFLAGS=$ASFLAGS
2796 CC_O=$CC_O
2797 LDFLAGS=$LDFLAGS
2798 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2799 SHFLAGS=$SHFLAGS
2800 YASMFLAGS=$YASMFLAGS
2801 BUILDSUF=$build_suffix
2802 FULLNAME=$FULLNAME
2803 LIBPREF=$LIBPREF
2804 LIBSUF=$LIBSUF
2805 LIBNAME=$LIBNAME
2806 SLIBPREF=$SLIBPREF
2807 SLIBSUF=$SLIBSUF
2808 EXESUF=$EXESUF
2809 EXTRA_VERSION=$extra_version
2810 DEPFLAGS=$DEPFLAGS
2811 CCDEP=$CCDEP
2812 ASDEP=$ASDEP
2813 CC_DEPFLAGS=$CC_DEPFLAGS
2814 AS_DEPFLAGS=$AS_DEPFLAGS
2815 HOSTCC=$host_cc
2816 HOSTCFLAGS=$host_cflags
2817 HOSTEXESUF=$HOSTEXESUF
2818 HOSTLDFLAGS=$host_ldflags
2819 HOSTLIBS=$host_libs
2820 TARGET_EXEC=$target_exec
2821 TARGET_PATH=$target_path
2822 SDL_LIBS=$sdl_libs
2823 SDL_CFLAGS=$sdl_cflags
2824 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
2825 EXTRALIBS=$extralibs
2826 EOF
2827
2828 get_version(){
2829     name=$1
2830     file=$source_path/$2
2831     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2832     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2833     lcname=$(tolower $name)
2834     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2835     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2836 }
2837
2838 get_version LIBSWSCALE  libswscale/swscale.h
2839 get_version LIBPOSTPROC libpostproc/postprocess.h
2840 get_version LIBAVCODEC  libavcodec/avcodec.h
2841 get_version LIBAVDEVICE libavdevice/avdevice.h
2842 get_version LIBAVFORMAT libavformat/avformat.h
2843 get_version LIBAVUTIL   libavutil/avutil.h
2844 get_version LIBAVFILTER libavfilter/avfilter.h
2845
2846 enabled shared && cat >> config.mak <<EOF
2847 LIBTARGET=${LIBTARGET}
2848 SLIBNAME=${SLIBNAME}
2849 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
2850 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
2851 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
2852 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
2853 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
2854 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
2855 EOF
2856
2857 enabled asmalign_pot || align_shift="1 <<"
2858
2859 cat > $TMPH <<EOF
2860 /* Automatically generated by configure - do not modify! */
2861 #ifndef FFMPEG_CONFIG_H
2862 #define FFMPEG_CONFIG_H
2863 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
2864 #define FFMPEG_LICENSE "$(c_escape $license)"
2865 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
2866 #define CC_TYPE "$cc_type"
2867 #define CC_VERSION $cc_version
2868 #define restrict $_restrict
2869 #define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
2870 #define EXTERN_PREFIX "${extern_prefix}"
2871 #define EXTERN_ASM ${extern_prefix}
2872 EOF
2873
2874 if enabled small || disabled optimizations; then
2875     echo "#define av_always_inline"  >> $TMPH
2876 fi
2877
2878 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2879 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2880 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2881                                       $CONFIG_EXTRA      \
2882                                       $DECODER_LIST      \
2883                                       $ENCODER_LIST      \
2884                                       $HWACCEL_LIST      \
2885                                       $PARSER_LIST       \
2886                                       $BSF_LIST          \
2887                                       $DEMUXER_LIST      \
2888                                       $MUXER_LIST        \
2889                                       $FILTER_LIST       \
2890                                       $PROTOCOL_LIST     \
2891                                       $INDEV_LIST        \
2892                                       $OUTDEV_LIST       \
2893
2894 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2895 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
2896
2897 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2898 cmp -s $TMPH config.h &&
2899     echo "config.h is unchanged" ||
2900     mv -f $TMPH config.h
2901
2902 # build tree in object directory if source path is different from current one
2903 if enabled source_path_used; then
2904     DIRS="
2905         doc
2906         libavcodec
2907         libavcodec/$arch
2908         libavdevice
2909         libavfilter
2910         libavformat
2911         libavutil
2912         libavutil/$arch
2913         libpostproc
2914         libswscale
2915         libswscale/$arch
2916         tests
2917         tools
2918     "
2919     FILES="
2920         Makefile
2921         common.mak
2922         subdir.mak
2923         doc/texi2pod.pl
2924         libavcodec/Makefile
2925         libavdevice/Makefile
2926         libavfilter/Makefile
2927         libavformat/Makefile
2928         libavutil/Makefile
2929         libpostproc/Makefile
2930         libswscale/Makefile
2931     "
2932     for dir in $DIRS ; do
2933         mkdir -p $dir
2934     done
2935     for f in $FILES ; do
2936         $ln_s "$source_path/$f" $f
2937     done
2938 fi
2939
2940
2941 # build pkg-config files
2942
2943 pkgconfig_generate(){
2944 name=$1
2945 shortname=${name#lib}${build_suffix}
2946 comment=$2
2947 version=$3
2948 libs=$4
2949 requires=$5
2950 cat <<EOF > $name/$name.pc
2951 prefix=$prefix
2952 exec_prefix=\${prefix}
2953 libdir=$libdir
2954 includedir=$incdir
2955
2956 Name: $name
2957 Description: $comment
2958 Version: $version
2959 Requires: $(enabled shared || echo $requires)
2960 Requires.private: $(enabled shared && echo $requires)
2961 Conflicts:
2962 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
2963 Libs.private: $(enabled shared && echo $libs)
2964 Cflags: -I\${includedir}
2965 EOF
2966 cat <<EOF > $name/$name-uninstalled.pc
2967 prefix=
2968 exec_prefix=
2969 libdir=\${pcfiledir}
2970 includedir=${source_path}
2971
2972 Name: $name
2973 Description: $comment
2974 Version: $version
2975 Requires: $requires
2976 Conflicts:
2977 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2978 Cflags: -I\${includedir}
2979 EOF
2980 }
2981
2982 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2983 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2984 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2985 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2986 enabled avfilter &&
2987     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2988 enabled postproc &&
2989     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2990 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"