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   echo "Usage: configure [options]"
  59   echo "Options: [defaults in brackets after descriptions]"
  60   echo
  61   echo "Standard options:"
  62   echo "  --help                   print this message"
  63   echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  64   echo "  --disable-logging        do not log configure debug information"
  65   echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
  66   echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
  67   echo "  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]"
  68   echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
  69   echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
  70   echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
  71   echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
  72   echo
  73   echo "Configuration options:"
  74   echo "  --disable-static         do not build static libraries [no]"
  75   echo "  --enable-shared          build shared libraries [no]"
  76   echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  77   echo "                           and binaries will be under GPL [no]"
  78   echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  79   echo "                           and binaries will be unredistributable [no]"
  80   echo "  --disable-ffmpeg         disable ffmpeg build"
  81   echo "  --disable-ffplay         disable ffplay build"
  82   echo "  --disable-ffserver       disable ffserver build"
  83   echo "  --enable-postproc        enable GPLed postprocessing support [no]"
  84   echo "  --enable-avfilter        video filter support [no]"
  85   echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  86   echo "  --enable-beosthreads     use BeOS threads [no]"
  87   echo "  --enable-os2threads      use OS/2 threads [no]"
  88   echo "  --enable-pthreads        use pthreads [no]"
  89   echo "  --enable-w32threads      use Win32 threads [no]"
  90   echo "  --enable-x11grab         enable X11 grabbing [no]"
  91   echo "  --disable-network        disable network support [no]"
  92   echo "  --disable-ipv6           disable IPv6 support [no]"
  93   echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  94   echo "  --enable-gray            enable full grayscale support (slower color)"
  95   echo "  --disable-swscale-alpha  disable alpha channel support in swscale"
  96   echo "  --disable-fastdiv        disable table-based division"
  97   echo "  --enable-small           optimize for size instead of speed"
  98   echo "  --disable-aandct         disable AAN DCT code"
  99   echo "  --disable-fft            disable FFT code"
 100   echo "  --disable-golomb         disable Golomb code"
 101   echo "  --disable-mdct           disable MDCT code"
 102   echo "  --disable-rdft           disable RDFT code"
 103   echo "  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
 104   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 105   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 106   echo "  --enable-beos-netserver  enable BeOS netserver"
 107   echo "  --disable-encoder=NAME   disable encoder NAME"
 108   echo "  --enable-encoder=NAME    enable encoder NAME"
 109   echo "  --disable-encoders       disable all encoders"
 110   echo "  --disable-decoder=NAME   disable decoder NAME"
 111   echo "  --enable-decoder=NAME    enable decoder NAME"
 112   echo "  --disable-decoders       disable all decoders"
 113   echo "  --disable-hwaccel=NAME   disable hwaccel NAME"
 114   echo "  --enable-hwaccel=NAME    enable hwaccel NAME"
 115   echo "  --disable-hwaccels       disable all hwaccels"
 116   echo "  --disable-muxer=NAME     disable muxer NAME"
 117   echo "  --enable-muxer=NAME      enable muxer NAME"
 118   echo "  --disable-muxers         disable all muxers"
 119   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 120   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 121   echo "  --disable-demuxers       disable all demuxers"
 122   echo "  --enable-parser=NAME     enable parser NAME"
 123   echo "  --disable-parser=NAME    disable parser NAME"
 124   echo "  --disable-parsers        disable all parsers"
 125   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 126   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 127   echo "  --disable-bsfs           disable all bitstream filters"
 128   echo "  --enable-protocol=NAME   enable protocol NAME"
 129   echo "  --disable-protocol=NAME  disable protocol NAME"
 130   echo "  --disable-protocols      disable all protocols"
 131   echo "  --disable-indevs         disable input devices"
 132   echo "  --disable-outdevs        disable output devices"
 133   echo "  --disable-devices        disable all devices"
 134   echo "  --enable-filter=NAME     enable filter NAME"
 135   echo "  --disable-filter=NAME    disable filter NAME"
 136   echo "  --disable-filters        disable all filters"
 137   echo "  --list-decoders          show all available decoders"
 138   echo "  --list-encoders          show all available encoders"
 139   echo "  --list-hwaccels          show all available hardware accelerators"
 140   echo "  --list-muxers            show all available muxers"
 141   echo "  --list-demuxers          show all available demuxers"
 142   echo "  --list-parsers           show all available parsers"
 143   echo "  --list-protocols         show all available protocols"
 144   echo "  --list-bsfs              show all available bitstream filters"
 145   echo "  --list-indevs            show all available input devices"
 146   echo "  --list-outdevs           show all available output devices"
 147   echo "  --list-filters           show all available filters"
 148   echo
 149   echo "External library support:"
 150   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 151   echo "  --enable-bzlib           enable bzlib [autodetect]"
 152   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
 153   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
 154   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
 155   echo "                           and libraw1394 [no]"
 156   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
 157   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 158   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 159   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 160   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 161   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 162   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 163   echo "                           native (de)muxer exists [no]"
 164   echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
 165   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 166   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 167   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 168   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 169   echo "                           native implementation exists [no]"
 170   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 171   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 172   echo "                           native MPEG-4/Xvid encoder exists [no]"
 173   echo "  --enable-mlib            enable Sun medialib [no]"
 174   echo "  --enable-zlib            enable zlib [autodetect]"
 175   echo ""
 176   echo "Advanced options (experts only):"
 177   echo "  --source-path=PATH       path to source code [$source_path]"
 178   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 179   echo "  --enable-cross-compile   assume a cross-compiler is used"
 180   echo "  --sysroot=PATH           root of cross-build tree"
 181   echo "  --sysinclude=PATH        location of cross-build system headers"
 182   echo "  --target-os=OS           compiler targets OS [$target_os]"
 183   echo "  --target-exec=CMD        command to run executables on target"
 184   echo "  --target-path=DIR        path to view of build directory on target"
 185   echo "  --nm=NM                  use nm tool"
 186   echo "  --as=AS                  use assembler AS [$as_default]"
 187   echo "  --cc=CC                  use C compiler CC [$cc_default]"
 188   echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
 189   echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
 190   echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
 191   echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
 192   echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
 193   echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
 194   echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
 195   echo "  --extra-version=STRING   version string suffix []"
 196   echo "  --build-suffix=SUFFIX    library name suffix []"
 197   echo "  --arch=ARCH              select architecture [$arch]"
 198   echo "  --cpu=CPU                select the minimum required CPU (affects"
 199   echo "                           instruction selection, may crash on older CPUs)"
 200   echo "  --enable-powerpc-perf    enable performance report on PPC"
 201   echo "                           (requires enabling PMC)"
 202   echo "  --disable-altivec        disable AltiVec optimizations"
 203   echo "  --disable-amd3dnow       disable 3DNow! optimizations"
 204   echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
 205   echo "  --disable-mmx            disable MMX optimizations"
 206   echo "  --disable-mmx2           disable MMX2 optimizations"
 207   echo "  --disable-sse            disable SSE optimizations"
 208   echo "  --disable-ssse3          disable SSSE3 optimizations"
 209   echo "  --disable-armv5te        disable armv5te optimizations"
 210   echo "  --disable-armv6          disable armv6 optimizations"
 211   echo "  --disable-armv6t2        disable armv6t2 optimizations"
 212   echo "  --disable-armvfp         disable ARM VFP optimizations"
 213   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 214   echo "  --disable-mmi            disable MMI optimizations"
 215   echo "  --disable-neon           disable neon optimizations"
 216   echo "  --disable-vis            disable VIS optimizations"
 217   echo "  --disable-yasm           disable use of yasm assembler"
 218   echo
 219   echo "Developer options (useful when working on FFmpeg itself):"
 220   echo "  --disable-debug          disable debugging symbols"
 221   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 222   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 223   echo "  --disable-optimizations  disable compiler optimizations"
 224   echo "  --enable-extra-warnings  enable more compiler warnings"
 225   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 226   echo ""
 227   echo "NOTE: Object files are built at the place where configure is launched."
 228   exit 0
 229 }
 230
 231 log(){
 232     echo "$@" >> $logfile
 233 }
 234
 235 log_file(){
 236     log BEGIN $1
 237     pr -n -t $1 >> $logfile
 238     log END $1
 239 }
 240
 241 echolog(){
 242     log "$@"
 243     echo "$@"
 244 }
 245
 246 die(){
 247     echolog "$@"
 248     cat <<EOF
 249
 250 If you think configure made a mistake, make sure you are using the latest
 251 version from SVN.  If the latest version fails, report the problem to the
 252 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 253 EOF
 254     if disabled logging; then
 255         cat <<EOF
 256 Rerun configure with logging enabled (do not use --disable-logging), and
 257 include the log this produces with your report.
 258 EOF
 259     else
 260 cat <<EOF
 261 Include the log file "$logfile" produced by configure as this will help
 262 solving the problem.
 263 EOF
 264     fi
 265     exit 1
 266 }
 267
 268 # Avoid locale weirdness, besides we really just want to translate ASCII.
 269 toupper(){
 270     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 271 }
 272
 273 tolower(){
 274     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 275 }
 276
 277 c_escape(){
 278     echo "$*" | sed 's/["\\]/\\\0/g'
 279 }
 280
 281 set_all(){
 282     value=$1
 283     shift
 284     for var in $*; do
 285         eval $var=$value
 286     done
 287 }
 288
 289 set_weak(){
 290     value=$1
 291     shift
 292     for var; do
 293         eval : \${$var:=$value}
 294     done
 295 }
 296
 297 pushvar(){
 298     for var in $*; do
 299         eval level=\${${var}_level:=0}
 300         eval ${var}_${level}="\$$var"
 301         eval ${var}_level=$(($level+1))
 302     done
 303 }
 304
 305 popvar(){
 306     for var in $*; do
 307         eval level=\${${var}_level:-0}
 308         test $level = 0 && continue
 309         eval level=$(($level-1))
 310         eval $var="\${${var}_${level}}"
 311         eval ${var}_level=$level
 312         eval unset ${var}_${level}
 313     done
 314 }
 315
 316 enable(){
 317     set_all yes $*
 318 }
 319
 320 disable(){
 321     set_all no $*
 322 }
 323
 324 enable_weak(){
 325     set_weak yes $*
 326 }
 327
 328 disable_weak(){
 329     set_weak no $*
 330 }
 331
 332 enable_safe(){
 333     enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 334 }
 335
 336 disable_safe(){
 337     disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 338 }
 339
 340 do_enable_deep(){
 341     for var; do
 342         enabled $var && continue
 343         eval sel="\$${var}_select"
 344         eval sgs="\$${var}_suggest"
 345         pushvar var sgs
 346         enable_deep $sel
 347         popvar sgs
 348         enable_deep_weak $sgs
 349         popvar var
 350     done
 351 }
 352
 353 enable_deep(){
 354     do_enable_deep $*
 355     enable $*
 356 }
 357
 358 enable_deep_weak(){
 359     do_enable_deep $*
 360     enable_weak $*
 361 }
 362
 363 enabled(){
 364     test "${1#!}" = "$1" && op== || op=!=
 365     eval test "x\$${1#!}" $op "xyes"
 366 }
 367
 368 disabled(){
 369     test "${1#!}" = "$1" && op== || op=!=
 370     eval test "x\$${1#!}" $op "xno"
 371 }
 372
 373 enabled_all(){
 374     for opt; do
 375         enabled $opt || return 1
 376     done
 377 }
 378
 379 disabled_all(){
 380     for opt; do
 381         disabled $opt || return 1
 382     done
 383 }
 384
 385 enabled_any(){
 386     for opt; do
 387         enabled $opt && return 0
 388     done
 389 }
 390
 391 disabled_any(){
 392     for opt; do
 393         disabled $opt && return 0
 394     done
 395     return 1
 396 }
 397
 398 set_default(){
 399     for opt; do
 400         eval : \${$opt:=\$${opt}_default}
 401     done
 402 }
 403
 404 is_in(){
 405     value=$1
 406     shift
 407     for var in $*; do
 408         [ $var = $value ] && return 0
 409     done
 410     return 1
 411 }
 412
 413 check_deps(){
 414     for cfg; do
 415         cfg="${cfg#!}"
 416         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 417         disabled ${cfg}_checking && continue
 418         enable ${cfg}_checking
 419
 420         eval dep_all="\$${cfg}_deps"
 421         eval dep_any="\$${cfg}_deps_any"
 422         eval dep_sel="\$${cfg}_select"
 423         eval dep_sgs="\$${cfg}_suggest"
 424
 425         pushvar cfg dep_all dep_any dep_sel dep_sgs
 426         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 427         popvar cfg dep_all dep_any dep_sel dep_sgs
 428
 429         enabled_all  $dep_all || disable $cfg
 430         enabled_any  $dep_any || disable $cfg
 431         disabled_any $dep_sel && disable $cfg
 432
 433         if enabled $cfg; then
 434             eval dep_extralibs="\$${cfg}_extralibs"
 435             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 436             enable_deep $dep_sel
 437             enable_deep_weak $dep_sgs
 438         fi
 439
 440         disable ${cfg}_checking
 441     done
 442 }
 443
 444 print_config(){
 445     pfx=$1
 446     header=$2
 447     makefile=$3
 448     shift 3
 449     for cfg; do
 450         ucname="$(toupper $cfg)"
 451         if enabled $cfg; then
 452             echo "#define ${pfx}${ucname} 1" >> $header
 453             echo "${pfx}${ucname}=yes" >> $makefile
 454         else
 455             echo "#define ${pfx}${ucname} 0" >> $header
 456         fi
 457     done
 458 }
 459
 460 flags_saved(){
 461     (: ${SAVE_CFLAGS?}) 2> /dev/null
 462 }
 463
 464 save_flags(){
 465     flags_saved && return
 466     SAVE_CFLAGS="$CFLAGS"
 467     SAVE_LDFLAGS="$LDFLAGS"
 468     SAVE_extralibs="$extralibs"
 469 }
 470
 471 restore_flags(){
 472     flags_saved || return
 473     CFLAGS="$SAVE_CFLAGS"
 474     LDFLAGS="$SAVE_LDFLAGS"
 475     extralibs="$SAVE_extralibs"
 476     unset SAVE_CFLAGS
 477     unset SAVE_LDFLAGS
 478     unset SAVE_extralibs
 479 }
 480
 481 temp_cflags(){
 482     save_flags
 483     CFLAGS="$CFLAGS $*"
 484 }
 485
 486 temp_ldflags(){
 487     save_flags
 488     LDFLAGS="$LDFLAGS $*"
 489 }
 490
 491 temp_extralibs(){
 492     save_flags
 493     extralibs="$extralibs $*"
 494 }
 495
 496 append(){
 497     var=$1
 498     shift
 499     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 500     eval "$var=\"\$$var $*\""
 501 }
 502
 503 add_cflags(){
 504     append CFLAGS "$@"
 505 }
 506
 507 add_ldflags(){
 508     append LDFLAGS "$@"
 509 }
 510
 511 add_extralibs(){
 512     append extralibs "$@"
 513 }
 514
 515 check_cmd(){
 516     log "$@"
 517     "$@" >> $logfile 2>&1
 518 }
 519
 520 check_cc(){
 521     log check_cc "$@"
 522     cat > $TMPC
 523     log_file $TMPC
 524     check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
 525 }
 526
 527 check_cpp(){
 528     log check_cpp "$@"
 529     cat > $TMPC
 530     log_file $TMPC
 531     check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
 532 }
 533
 534 check_as(){
 535     log check_as "$@"
 536     cat > $TMPC
 537     log_file $TMPC
 538     check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
 539 }
 540
 541 check_asm(){
 542     log check_asm "$@"
 543     name="$1"
 544     asm="$2"
 545     shift 2
 546     check_as "$@" <<EOF && enable $name || disable $name
 547 void foo(void){ __asm__ volatile($asm); }
 548 EOF
 549 }
 550
 551 check_yasm(){
 552     log check_yasm "$@"
 553     echo "$1" > $TMPS
 554     log_file $TMPS
 555     shift 1
 556     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 557 }
 558
 559 check_ld(){
 560     log check_ld "$@"
 561     check_cc || return
 562     flags=''
 563     libs=''
 564     for f; do
 565         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 566     done
 567     check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 568 }
 569
 570 check_cflags(){
 571     log check_cflags "$@"
 572     check_cc "$@" <<EOF && add_cflags "$@"
 573 int x;
 574 EOF
 575 }
 576
 577 check_ldflags(){
 578     log check_ldflags "$@"
 579     check_ld "$@" <<EOF && add_ldflags "$@"
 580 int main(void){ return 0; }
 581 EOF
 582 }
 583
 584 check_header(){
 585     log check_header "$@"
 586     header=$1
 587     shift
 588     disable_safe $header
 589     check_cpp "$@" <<EOF && enable_safe $header
 590 #include <$header>
 591 int x;
 592 EOF
 593 }
 594
 595 check_func(){
 596     log check_func "$@"
 597     func=$1
 598     shift
 599     disable $func
 600     check_ld "$@" <<EOF && enable $func
 601 extern int $func();
 602 int main(void){ $func(); }
 603 EOF
 604 }
 605
 606 check_func_headers(){
 607     log check_func_headers "$@"
 608     headers=$1
 609     func=$2
 610     shift 2
 611     disable $func
 612     incs=""
 613     for hdr in $headers; do
 614         incs="$incs
 615 #include <$hdr>"
 616     done
 617     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 618 $incs
 619 int main(int argc, char **argv){
 620     (void) $func;
 621     return 0;
 622 }
 623 EOF
 624 }
 625
 626 check_cpp_condition(){
 627     log check_cpp_condition "$@"
 628     header=$1
 629     condition=$2
 630     check_cpp <<EOF
 631 #include <$header>
 632 #if !($condition)
 633 #error "unsatisfied condition: $condition"
 634 #endif
 635 EOF
 636 }
 637
 638 check_lib(){
 639     log check_lib "$@"
 640     header="$1"
 641     func="$2"
 642     shift 2
 643     temp_extralibs "$@"
 644     check_header $header && check_func $func && add_extralibs "$@"
 645     err=$?
 646     restore_flags
 647     return $err
 648 }
 649
 650 check_lib2(){
 651     log check_lib2 "$@"
 652     headers="$1"
 653     func="$2"
 654     shift 2
 655     temp_extralibs "$@"
 656     check_func_headers "$headers" $func && add_extralibs "$@"
 657     err=$?
 658     restore_flags
 659     return $err
 660 }
 661
 662 check_exec(){
 663     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 664 }
 665
 666 check_exec_crash(){
 667     code=$(cat)
 668
 669     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 670     # are safe but may not be available everywhere.  Thus we use
 671     # raise(SIGTERM) instead.  The check is run in a subshell so we
 672     # can redirect the "Terminated" message from the shell.  SIGBUS
 673     # is not defined by standard C so it is used conditionally.
 674
 675     (check_exec "$@") >> $logfile 2>&1 <<EOF
 676 #include <signal.h>
 677 static void sighandler(int sig){
 678     raise(SIGTERM);
 679 }
 680 int main(void){
 681     signal(SIGILL, sighandler);
 682     signal(SIGFPE, sighandler);
 683     signal(SIGSEGV, sighandler);
 684 #ifdef SIGBUS
 685     signal(SIGBUS, sighandler);
 686 #endif
 687     { $code }
 688 }
 689 EOF
 690 }
 691
 692 check_type(){
 693     log check_type "$@"
 694     headers=$1
 695     type=$2
 696     shift 2
 697     disable $type
 698     incs=""
 699     for hdr in $headers; do
 700         incs="$incs
 701 #include <$hdr>"
 702     done
 703     check_cc "$@" <<EOF && enable $type
 704 $incs
 705 $type v;
 706 EOF
 707 }
 708
 709 require(){
 710     name="$1"
 711     header="$2"
 712     func="$3"
 713     shift 3
 714     check_lib $header $func "$@" || die "ERROR: $name not found"
 715 }
 716
 717 require2(){
 718     name="$1"
 719     headers="$2"
 720     func="$3"
 721     shift 3
 722     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 723 }
 724
 725 check_foo_config(){
 726     cfg=$1
 727     pkg=$2
 728     header=$3
 729     func=$4
 730     shift 4
 731     disable $cfg
 732     check_cmd ${pkg}-config --version
 733     err=$?
 734     if test "$err" = 0; then
 735         temp_cflags $(${pkg}-config --cflags)
 736         temp_extralibs $(${pkg}-config --libs)
 737         check_lib "$@" $header $func && enable $cfg
 738     fi
 739     return $err
 740 }
 741
 742 apply(){
 743     file=$1
 744     shift
 745     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 746 }
 747
 748 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 749 # system-dependent things.
 750
 751 COMPONENT_LIST="
 752     bsfs
 753     decoders
 754     demuxers
 755     encoders
 756     filters
 757     hwaccels
 758     indevs
 759     muxers
 760     outdevs
 761     parsers
 762     protocols
 763 "
 764
 765 CONFIG_LIST="
 766     $COMPONENT_LIST
 767     aandct
 768     avfilter
 769     avfilter_lavf
 770     avisynth
 771     beos_netserver
 772     bzlib
 773     fastdiv
 774     ffmpeg
 775     ffplay
 776     ffserver
 777     fft
 778     golomb
 779     gpl
 780     gprof
 781     gray
 782     hardcoded_tables
 783     ipv6
 784     libamr_nb
 785     libamr_wb
 786     libdc1394
 787     libdirac
 788     libfaac
 789     libfaad
 790     libfaadbin
 791     libgsm
 792     libmp3lame
 793     libnut
 794     libopenjpeg
 795     libschroedinger
 796     libspeex
 797     libtheora
 798     libvorbis
 799     libx264
 800     libxvid
 801     mdct
 802     memalign_hack
 803     mlib
 804     mpegaudio_hp
 805     network
 806     nonfree
 807     postproc
 808     powerpc_perf
 809     rdft
 810     runtime_cpudetect
 811     shared
 812     small
 813     static
 814     swscale_alpha
 815     x11grab
 816     zlib
 817 "
 818
 819 THREADS_LIST='
 820     beosthreads
 821     os2threads
 822     pthreads
 823     w32threads
 824 '
 825
 826 ARCH_LIST='
 827     alpha
 828     arm
 829     bfin
 830     ia64
 831     m68k
 832     mips
 833     mips64
 834     parisc
 835     ppc
 836     ppc64
 837     s390
 838     sh4
 839     sparc
 840     sparc64
 841     x86
 842     x86_32
 843     x86_64
 844 '
 845
 846 ARCH_EXT_LIST='
 847     altivec
 848     amd3dnow
 849     amd3dnowext
 850     armv5te
 851     armv6
 852     armv6t2
 853     armvfp
 854     iwmmxt
 855     mmi
 856     mmx
 857     mmx2
 858     neon
 859     ppc4xx
 860     sse
 861     ssse3
 862     vis
 863 '
 864
 865 HAVE_LIST="
 866     $ARCH_EXT_LIST
 867     $THREADS_LIST
 868     alsa_asoundlib_h
 869     altivec_h
 870     arpa_inet_h
 871     bigendian
 872     bswap
 873     closesocket
 874     cmov
 875     conio_h
 876     dcbzl
 877     dev_bktr_ioctl_bt848_h
 878     dev_bktr_ioctl_meteor_h
 879     dev_ic_bt8xx_h
 880     dev_video_meteor_ioctl_meteor_h
 881     dev_video_bktr_ioctl_bt848_h
 882     dlfcn_h
 883     dlopen
 884     dos_paths
 885     ebp_available
 886     ebx_available
 887     fast_64bit
 888     fast_cmov
 889     fast_unaligned
 890     fork
 891     gethrtime
 892     GetProcessTimes
 893     getrusage
 894     inet_aton
 895     inline_asm
 896     ldbrx
 897     libdc1394_1
 898     libdc1394_2
 899     llrint
 900     loongson
 901     lrint
 902     lrintf
 903     lzo1x_999_compress
 904     machine_ioctl_bt848_h
 905     machine_ioctl_meteor_h
 906     malloc_h
 907     memalign
 908     mkstemp
 909     pld
 910     posix_memalign
 911     round
 912     roundf
 913     sdl
 914     sdl_video_size
 915     setmode
 916     socklen_t
 917     soundcard_h
 918     poll_h
 919     sys_mman_h
 920     sys_resource_h
 921     sys_select_h
 922     sys_soundcard_h
 923     sys_videoio_h
 924     ten_operands
 925     termios_h
 926     threads
 927     truncf
 928     VirtualAlloc
 929     winsock2_h
 930     xform_asm
 931     yasm
 932 "
 933
 934 # options emitted with CONFIG_ prefix but not available on command line
 935 CONFIG_EXTRA="
 936 "
 937
 938 CMDLINE_SELECT="
 939     $ARCH_EXT_LIST
 940     $CONFIG_LIST
 941     $THREADS_LIST
 942     cross_compile
 943     debug
 944     extra_warnings
 945     logging
 946     optimizations
 947     stripping
 948     yasm
 949 "
 950
 951 PATHS_LIST='
 952     bindir
 953     datadir
 954     incdir
 955     libdir
 956     mandir
 957     prefix
 958     shlibdir
 959 '
 960
 961 CMDLINE_SET="
 962     $PATHS_LIST
 963     arch
 964     as
 965     build_suffix
 966     cc
 967     cpu
 968     cross_prefix
 969     extra_version
 970     host_cc
 971     host_cflags
 972     host_ldflags
 973     host_libs
 974     host_os
 975     logfile
 976     nm
 977     source_path
 978     sysinclude
 979     sysroot
 980     target_exec
 981     target_os
 982     target_path
 983 "
 984
 985 # code dependency declarations
 986
 987 # architecture extensions
 988 altivec_deps="ppc"
 989 amd3dnow_deps="mmx"
 990 amd3dnowext_deps="amd3dnow"
 991 armv5te_deps="arm"
 992 armv6_deps="arm"
 993 armv6t2_deps="arm"
 994 armvfp_deps="arm"
 995 iwmmxt_deps="arm"
 996 mmi_deps="mips"
 997 mmx_deps="x86"
 998 mmx2_deps="mmx"
 999 neon_deps="arm"
1000 ppc4xx_deps="ppc"
1001 sse_deps="mmx"
1002 ssse3_deps="sse"
1003 vis_deps="sparc"
1004
1005 # decoders / encoders / hardware accelerators
1006 aac_decoder_select="fft mdct"
1007 ac3_decoder_select="fft mdct"
1008 atrac3_decoder_select="fft mdct"
1009 cavs_decoder_select="golomb"
1010 cook_decoder_select="fft mdct"
1011 cscd_decoder_suggest="zlib"
1012 dca_decoder_select="fft mdct"
1013 dnxhd_encoder_select="aandct"
1014 dxa_decoder_select="zlib"
1015 eac3_decoder_select="fft mdct"
1016 eatgq_decoder_select="aandct"
1017 eatqi_decoder_select="aandct"
1018 ffv1_decoder_select="golomb"
1019 flac_decoder_select="golomb"
1020 flac_encoder_select="golomb"
1021 flashsv_decoder_select="zlib"
1022 flashsv_encoder_select="zlib"
1023 flv_encoder_select="aandct"
1024 h261_encoder_select="aandct"
1025 h263_encoder_select="aandct"
1026 h263_vaapi_hwaccel_deps="va_va_h"
1027 h263p_encoder_select="aandct"
1028 h264_decoder_select="golomb"
1029 h264_vaapi_hwaccel_deps="va_va_h"
1030 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1031 imc_decoder_select="fft mdct"
1032 jpegls_decoder_select="golomb"
1033 jpegls_encoder_select="golomb"
1034 ljpeg_encoder_select="aandct"
1035 loco_decoder_select="golomb"
1036 mjpeg_encoder_select="aandct"
1037 mpeg1video_encoder_select="aandct"
1038 mpeg2video_encoder_select="aandct"
1039 mpeg4_encoder_select="aandct"
1040 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1041 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1042 mpeg2_vaapi_hwaccel_deps="va_va_h"
1043 mpeg4_vaapi_hwaccel_deps="va_va_h"
1044 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1045 msmpeg4v1_encoder_select="aandct"
1046 msmpeg4v2_encoder_select="aandct"
1047 msmpeg4v3_encoder_select="aandct"
1048 nellymoser_decoder_select="fft mdct"
1049 nellymoser_encoder_select="fft mdct"
1050 png_decoder_select="zlib"
1051 png_encoder_select="zlib"
1052 qdm2_decoder_select="fft mdct rdft"
1053 rv10_encoder_select="aandct"
1054 rv20_encoder_select="aandct"
1055 rv30_decoder_select="golomb"
1056 rv40_decoder_select="golomb"
1057 shorten_decoder_select="golomb"
1058 sonic_decoder_select="golomb"
1059 sonic_encoder_select="golomb"
1060 sonic_ls_encoder_select="golomb"
1061 svq3_decoder_select="golomb"
1062 svq3_decoder_suggest="zlib"
1063 tiff_decoder_suggest="zlib"
1064 tiff_encoder_suggest="zlib"
1065 tscc_decoder_select="zlib"
1066 vc1_vaapi_hwaccel_deps="va_va_h"
1067 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1068 vorbis_decoder_select="fft mdct"
1069 vorbis_encoder_select="fft mdct"
1070 wmav1_decoder_select="fft mdct"
1071 wmav1_encoder_select="fft mdct"
1072 wmav2_decoder_select="fft mdct"
1073 wmav2_encoder_select="fft mdct"
1074 wmv1_encoder_select="aandct"
1075 wmv2_encoder_select="aandct"
1076 wmv3_vaapi_hwaccel_deps="va_va_h"
1077 wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1078 zlib_decoder_select="zlib"
1079 zlib_encoder_select="zlib"
1080 zmbv_decoder_select="zlib"
1081 zmbv_encoder_select="zlib"
1082
1083 # external libraries
1084 libamr_nb_decoder_deps="libamr_nb"
1085 libamr_nb_encoder_deps="libamr_nb"
1086 libamr_wb_decoder_deps="libamr_wb"
1087 libamr_wb_encoder_deps="libamr_wb"
1088 libdirac_decoder_deps="libdirac !libschroedinger"
1089 libdirac_encoder_deps="libdirac"
1090 libfaac_encoder_deps="libfaac"
1091 libfaad_decoder_deps="libfaad"
1092 libfaadbin_decoder_extralibs='$ldl'
1093 libgsm_decoder_deps="libgsm"
1094 libgsm_encoder_deps="libgsm"
1095 libgsm_ms_decoder_deps="libgsm"
1096 libgsm_ms_encoder_deps="libgsm"
1097 libmp3lame_encoder_deps="libmp3lame"
1098 libopenjpeg_decoder_deps="libopenjpeg"
1099 libschroedinger_decoder_deps="libschroedinger"
1100 libschroedinger_encoder_deps="libschroedinger"
1101 libspeex_decoder_deps="libspeex"
1102 libtheora_encoder_deps="libtheora"
1103 libvorbis_encoder_deps="libvorbis"
1104 libx264_encoder_deps="libx264"
1105 libxvid_encoder_deps="libxvid"
1106
1107 # demuxers / muxers
1108 ac3_demuxer_deps="ac3_parser"
1109 alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1110 alsa_demuxer_extralibs="-lasound"
1111 alsa_muxer_deps="alsa_asoundlib_h"
1112 alsa_muxer_extralibs="-lasound"
1113 audio_beos_demuxer_deps="audio_beos"
1114 audio_beos_demuxer_extralibs="-lmedia -lbe"
1115 audio_beos_muxer_deps="audio_beos"
1116 audio_beos_muxer_extralibs="-lmedia -lbe"
1117 avisynth_demuxer_deps="avisynth"
1118 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1119 dirac_demuxer_deps="dirac_parser"
1120 dv1394_demuxer_deps="dv1394 dv_demuxer"
1121 jack_demuxer_deps="jack_jack_h"
1122 jack_demuxer_extralibs="-ljack"
1123 libdc1394_demuxer_deps="libdc1394"
1124 libnut_demuxer_deps="libnut"
1125 libnut_muxer_deps="libnut"
1126 matroska_demuxer_suggest="zlib bzlib"
1127 mov_demuxer_suggest="zlib"
1128 mp3_demuxer_deps="mpegaudio_parser"
1129 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1130 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1131 redir_demuxer_deps="network"
1132 rtp_muxer_deps="network rtp_protocol"
1133 rtsp_demuxer_deps="sdp_demuxer"
1134 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1135 v4l_demuxer_deps="linux_videodev_h"
1136 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1137 vfwcap_demuxer_deps="capCreateCaptureWindow"
1138 vfwcap_demuxer_extralibs="-lvfw32"
1139 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1140 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1141
1142 # protocols
1143 gopher_protocol_deps="network"
1144 http_protocol_deps="network"
1145 rtp_protocol_deps="udp_protocol"
1146 tcp_protocol_deps="network"
1147 udp_protocol_deps="network"
1148
1149 # filters
1150 movie_filter_deps="avfilter_lavf"
1151
1152 # programs
1153 ffplay_deps="sdl"
1154 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1155 ffserver_extralibs='$ldl'
1156
1157
1158 # default parameters
1159
1160 logfile="config.err"
1161
1162 # installation paths
1163 prefix_default="/usr/local"
1164 bindir_default='${prefix}/bin'
1165 datadir_default='${prefix}/share/ffmpeg'
1166 incdir_default='${prefix}/include'
1167 libdir_default='${prefix}/lib'
1168 mandir_default='${prefix}/share/man'
1169 shlibdir_default="$libdir_default"
1170
1171 # toolchain
1172 ar="ar"
1173 cc_default="gcc"
1174 host_cc_default="gcc"
1175 ln_s="ln -sf"
1176 nm_default="nm"
1177 objformat="elf"
1178 ranlib="ranlib"
1179 strip="strip"
1180 yasmexe="yasm"
1181
1182 # machine
1183 arch=$(uname -m)
1184 cpu="generic"
1185
1186 # OS
1187 target_os=$(tolower $(uname -s))
1188 host_os=$target_os
1189
1190 # configurable options
1191 enable debug
1192 enable fastdiv
1193 enable ffmpeg
1194 enable ffplay
1195 enable ffserver
1196 enable ipv6
1197 enable mpegaudio_hp
1198 enable network
1199 enable optimizations
1200 enable protocols
1201 enable static
1202 enable stripping
1203 enable swscale_alpha
1204
1205 # build settings
1206 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1207 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1208 FFSERVERLDFLAGS=-Wl,-E
1209 LIBPREF="lib"
1210 LIBSUF=".a"
1211 FULLNAME='$(NAME)$(BUILDSUF)'
1212 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1213 SLIBPREF="lib"
1214 SLIBSUF=".so"
1215 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1216 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1217 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1218 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1219
1220 host_cflags='-O3 -g -Wall'
1221 host_libs='-lm'
1222
1223 target_path='.'
1224
1225 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1226 # full relative path for objects in subdirectories for non-recursive Make.
1227 DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1228
1229 # find source path
1230 source_path="$(dirname "$0")"
1231 enable source_path_used
1232 if test -z "$source_path" -o "$source_path" = "." ; then
1233     source_path="$(pwd)"
1234     disable source_path_used
1235 else
1236     source_path="$(cd "$source_path"; pwd)"
1237     echo "$source_path" | grep -q '[[:blank:]]' &&
1238         die "Out of tree builds are impossible with whitespace in source path."
1239     test -e "$source_path/config.h" &&
1240         die "Out of tree builds are impossible with config.h in source dir."
1241 fi
1242
1243 for v in "$@"; do
1244     r="${v#*=}"
1245     l="${v%$r}"
1246     test "$r" = "${r#* }" || r="'$r'"
1247     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1248 done
1249
1250 find_things(){
1251     thing=$1
1252     pattern=$2
1253     file=$source_path/$3
1254     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1255 }
1256
1257 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1258 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1259 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1260 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1261 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1262 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1263 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1264 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1265 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1266 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1267 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1268
1269 enable $ARCH_EXT_LIST \
1270        $DECODER_LIST \
1271        $ENCODER_LIST \
1272        $HWACCEL_LIST \
1273        $PARSER_LIST \
1274        $BSF_LIST \
1275        $DEMUXER_LIST \
1276        $MUXER_LIST \
1277        $FILTER_LIST \
1278        $PROTOCOL_LIST \
1279        $INDEV_LIST \
1280        $OUTDEV_LIST \
1281
1282 die_unknown(){
1283     echo "Unknown option \"$1\"."
1284     echo "See $0 --help for available options."
1285     exit 1
1286 }
1287
1288 show_list() {
1289     suffix=_$1
1290     shift
1291     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1292     exit 0
1293 }
1294
1295 for opt do
1296     optval="${opt#*=}"
1297     case "$opt" in
1298     --extra-cflags=*) add_cflags $optval
1299     ;;
1300     --extra-ldflags=*) add_ldflags $optval
1301     ;;
1302     --extra-libs=*) add_extralibs $optval
1303     ;;
1304     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1305     ;;
1306     --enable-debug=*) debuglevel="$optval"
1307     ;;
1308     --enable-*=*|--disable-*=*)
1309     eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1310     case "$thing" in
1311         encoder|decoder|hwaccel|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1312         *) die_unknown "$opt" ;;
1313     esac
1314     ;;
1315     --enable-?*|--disable-?*)
1316     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1317     if is_in $option $COMPONENT_LIST; then
1318         eval $action \$$(toupper ${option%s})_LIST
1319     elif is_in $option $CMDLINE_SELECT; then
1320         $action $option
1321     else
1322         die_unknown $opt
1323     fi
1324     ;;
1325     --list-*)
1326         NAME="${opt#--list-}"
1327         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1328         NAME=${NAME%s}
1329         eval show_list $NAME \$$(toupper $NAME)_LIST
1330     ;;
1331     --help|-h) show_help
1332     ;;
1333     *)
1334     optname="${opt%%=*}"
1335     optname="${optname#--}"
1336     optname=$(echo "$optname" | sed 's/-/_/g')
1337     is_in $optname $CMDLINE_SET || die_unknown $opt
1338     eval $optname='$optval'
1339     ;;
1340     esac
1341 done
1342
1343 disabled logging && logfile=/dev/null
1344
1345 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1346 set >> $logfile
1347
1348 test -n "$cross_prefix" && enable cross_compile
1349
1350 ar="${cross_prefix}${ar}"
1351 cc_default="${cross_prefix}${cc_default}"
1352 nm_default="${cross_prefix}${nm_default}"
1353 ranlib="${cross_prefix}${ranlib}"
1354 strip="${cross_prefix}${strip}"
1355
1356 sysinclude_default="${sysroot}/usr/include"
1357
1358 set_default cc nm sysinclude
1359 as_default=$cc
1360 enabled cross_compile || host_cc_default=$cc
1361 set_default host_cc
1362
1363 exesuf() {
1364     case $1 in
1365         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1366     esac
1367 }
1368
1369 EXESUF=$(exesuf $target_os)
1370 HOSTEXESUF=$(exesuf $host_os)
1371
1372 # set temporary file name
1373 : ${TMPDIR:=$TEMPDIR}
1374 : ${TMPDIR:=$TMP}
1375 : ${TMPDIR:=/tmp}
1376
1377 if ! check_cmd type mktemp; then
1378     # simple replacement for missing mktemp
1379     # NOT SAFE FOR GENERAL USE
1380     mktemp(){
1381         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1382     }
1383 fi
1384
1385 tmpfile(){
1386     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1387         (set -C; exec > $tmp) 2>/dev/null ||
1388         die "Unable to create temoporary file in $TMPDIR."
1389     append TMPFILES $tmp
1390     eval $1=$tmp
1391 }
1392
1393 trap 'rm -f -- $TMPFILES' EXIT
1394 trap exit HUP INT TERM
1395
1396 tmpfile TMPC  .c
1397 tmpfile TMPE  $EXESUF
1398 tmpfile TMPH  .h
1399 tmpfile TMPO  .o
1400 tmpfile TMPS  .S
1401 tmpfile TMPSH .sh
1402
1403 unset -f mktemp
1404
1405 # make sure we can execute files in $TMPDIR
1406 cat > $TMPSH 2>> $logfile <<EOF
1407 #! /bin/sh
1408 EOF
1409 chmod +x $TMPSH >> $logfile 2>&1
1410 if ! $TMPSH >> $logfile 2>&1; then
1411     cat <<EOF
1412 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1413 variable to another directory and make sure that it is not mounted noexec.
1414 EOF
1415     die "Sanity test failed."
1416 fi
1417
1418 if   $cc --version 2>/dev/null | grep -qi gcc; then
1419     cc_type=gcc
1420 elif $cc --version 2>/dev/null | grep -q Intel; then
1421     cc_type=icc
1422 elif $cc -v 2>&1 | grep -q xlc; then
1423     cc_type=xlc
1424 elif $cc -V 2>/dev/null | grep -q Compaq; then
1425     cc_type=ccc
1426     DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1427     debuglevel=3
1428     add_ldflags -Wl,-z,now # calls to libots crash without this
1429 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1430     test -d "$sysroot" || die "No valid sysroot specified."
1431     cc_type=armcc
1432     armcc_conf="$PWD/armcc.conf"
1433     $cc --arm_linux_configure                 \
1434         --arm_linux_config_file="$armcc_conf" \
1435         --configure_sysroot="$sysroot"        \
1436         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1437         die "Error creating armcc configuration file."
1438     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1439     as_default="${cross_prefix}gcc"
1440 fi
1441
1442 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1443
1444 set_default as
1445
1446 if test -n "$sysroot"; then
1447     case "$cc_type" in
1448         gcc)
1449             add_cflags  --sysroot="$sysroot"
1450             add_ldflags --sysroot="$sysroot"
1451         ;;
1452     esac
1453 fi
1454
1455 # compiler sanity check
1456 check_exec <<EOF
1457 int main(void){ return 0; }
1458 EOF
1459 if test "$?" != 0; then
1460     echo "$cc is unable to create an executable file."
1461     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1462         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1463         echo "Only do this if you know what cross compiling means."
1464     fi
1465     die "C compiler test failed."
1466 fi
1467
1468 check_cflags -std=c99
1469 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1470 #include <stdlib.h>
1471 EOF
1472 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1473 #include <stdlib.h>
1474 EOF
1475
1476 case "$arch" in
1477     alpha)
1478         arch="alpha"
1479         enable fast_64bit
1480         check_cflags -mieee
1481     ;;
1482     arm|armv[4567]*l)
1483         arch="arm"
1484     ;;
1485     avr32)
1486     ;;
1487     bfin)
1488         arch="bfin"
1489     ;;
1490     ia64)
1491         arch="ia64"
1492         enable fast_64bit
1493     ;;
1494     m68k)
1495         arch="m68k"
1496     ;;
1497     mips|mipsel|IP*)
1498         arch="mips"
1499     ;;
1500     mips64)
1501         arch="mips"
1502         subarch="mips64"
1503         enable fast_64bit
1504     ;;
1505     parisc|hppa)
1506         arch="parisc"
1507     ;;
1508     parisc64|hppa64)
1509         arch="parisc"
1510         enable fast_64bit
1511     ;;
1512     "Power Macintosh"|ppc|powerpc)
1513         arch="ppc"
1514         enable fast_unaligned
1515     ;;
1516     ppc64)
1517         arch="ppc"
1518         subarch="ppc64"
1519         enable fast_64bit
1520         enable fast_unaligned
1521     ;;
1522     s390|s390x)
1523         arch="s390"
1524     ;;
1525     sh4|sh)
1526         arch="sh4"
1527     ;;
1528     sparc)
1529         arch="sparc"
1530     ;;
1531     sun4u|sparc64)
1532         arch="sparc"
1533         subarch="sparc64"
1534         enable fast_64bit
1535     ;;
1536     i386|i486|i586|i686|i86pc|BePC)
1537         arch="x86"
1538         subarch="x86_32"
1539         enable fast_unaligned
1540     ;;
1541     x86_64|amd64)
1542         arch="x86"
1543         subarch="x86_32"
1544         enable cmov
1545         enable fast_cmov
1546         enable fast_unaligned
1547         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1548         int test[sizeof(char*) - 7];
1549 EOF
1550     ;;
1551     *)
1552         arch="unknown"
1553     ;;
1554 esac
1555
1556 enable $arch $subarch
1557
1558 # OS specific
1559 case $target_os in
1560     beos|haiku|zeta)
1561         prefix_default="$HOME/config"
1562         # helps building libavcodec
1563         add_cflags -DPIC -fomit-frame-pointer
1564         # 3 gcc releases known for BeOS, each with ugly bugs
1565         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1566         case "$gcc_version" in
1567           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1568             disable mmx
1569             ;;
1570           *20010315*) echo "BeBits gcc"
1571             add_cflags -fno-expensive-optimizations
1572             ;;
1573         esac
1574         SHFLAGS=-nostart
1575         # enable BeOS things
1576         enable audio_beos
1577         # no need for libm, but the inet stuff
1578         # Check for BONE
1579         # XXX: actually should check for NOT net_server
1580         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1581             network_extralibs="-lbind -lsocket"
1582         else
1583             enable beos_netserver
1584             network_extralibs="-lnet"
1585         fi ;;
1586     sunos)
1587         FFSERVERLDFLAGS=""
1588         SHFLAGS='-shared -Wl,-h,$$(@F)'
1589         network_extralibs="-lsocket -lnsl"
1590         add_cflags -D__EXTENSIONS__
1591         ;;
1592     netbsd)
1593         oss_demuxer_extralibs="-lossaudio"
1594         oss_muxer_extralibs="-lossaudio"
1595         ;;
1596     openbsd)
1597         disable need_memalign
1598         LIBOBJFLAGS='$(PIC)'
1599         SHFLAGS='-shared'
1600         oss_demuxer_extralibs="-lossaudio"
1601         oss_muxer_extralibs="-lossaudio"
1602         ;;
1603     freebsd)
1604         disable need_memalign
1605         ;;
1606     bsd/os)
1607         osextralibs="-lpoll -lgnugetopt"
1608         strip="strip -d"
1609         ;;
1610     darwin)
1611         disable need_memalign
1612         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1613         strip="strip -x"
1614         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1615         SLIBSUF=".dylib"
1616         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1617         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1618         FFSERVERLDFLAGS=-Wl,-bind_at_load
1619         objformat="macho"
1620         enabled x86_64 && objformat="macho64"
1621         ;;
1622     mingw32*)
1623         target_os=mingw32
1624         LIBTARGET=i386
1625         if enabled x86_64; then
1626             disable need_memalign
1627             LIBTARGET=x64
1628         fi
1629         shlibdir_default="$bindir_default"
1630         disable ffserver
1631         SLIBPREF=""
1632         SLIBSUF=".dll"
1633         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1634         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1635         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1636         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1637             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1638         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1639         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1640         objformat="win32"
1641         enable dos_paths
1642         check_cflags -fno-common
1643         if ! enabled x86_64; then
1644             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1645                 die "ERROR: MinGW runtime version must be >= 3.15."
1646             enabled_any avisynth vfwcap_demuxer &&
1647                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1648                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1649             fi
1650         ;;
1651     cygwin*)
1652         target_os=cygwin
1653         shlibdir_default="$bindir_default"
1654         SLIBPREF="cyg"
1655         SLIBSUF=".dll"
1656         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1657         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1658         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1659         objformat="win32"
1660         enable dos_paths
1661         check_cflags -fno-common
1662         ;;
1663     *-dos|freedos|opendos)
1664         disable ffplay ffserver
1665         disable $INDEV_LIST $OUTDEV_LIST
1666         network_extralibs="-lsocket"
1667         objformat="coff"
1668         enable dos_paths
1669         ;;
1670     linux)
1671         enable dv1394
1672         ;;
1673     irix*)
1674         target_os=irix
1675         ranlib="echo ignoring ranlib"
1676         ;;
1677     os/2*)
1678         strip="lxlite"
1679         ln_s="cp -f"
1680         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1681         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1682         FFSERVERLDFLAGS=""
1683         LIBSUF="_s.a"
1684         SLIBPREF=""
1685         SLIBSUF=".dll"
1686         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1687         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1688         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1689           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1690           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1691           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1692           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1693           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1694         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1695           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1696         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1697         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1698         enable dos_paths
1699         ;;
1700     gnu/kfreebsd)
1701         ;;
1702     gnu)
1703         ;;
1704
1705     *)
1706         die "Unknown OS '$target_os'."
1707         ;;
1708 esac
1709
1710 set_default $PATHS_LIST
1711
1712 add_extralibs $osextralibs
1713
1714 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1715 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1716
1717 # we need to build at least one lib type
1718 if ! enabled_any static shared; then
1719     cat <<EOF
1720 At least one library type must be built.
1721 Specify --enable-static to build the static libraries or --enable-shared to
1722 build the shared libraries as well. To only build the shared libraries specify
1723 --disable-static in addition to --enable-shared.
1724 EOF
1725     exit 1;
1726 fi
1727
1728 disabled static && LIBNAME=""
1729
1730 if enabled_any libfaad libfaadbin ; then
1731     if check_header faad.h; then
1732         check_cc <<EOF
1733 #include <faad.h>
1734 #ifndef FAAD2_VERSION
1735 ok faad1
1736 #endif
1737 int main(void) { return 0; }
1738 EOF
1739         test $? = 0 && enable libfaad2
1740     else
1741         die "FAAD test failed."
1742     fi
1743 fi
1744
1745
1746 die_license_disabled() {
1747     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
1748 }
1749
1750 die_license_disabled gpl libfaad2
1751 die_license_disabled gpl libx264
1752 die_license_disabled gpl libxvid
1753 die_license_disabled gpl postproc
1754 die_license_disabled gpl x11grab
1755
1756 die_license_disabled nonfree libamr_nb
1757 die_license_disabled nonfree libamr_wb
1758 die_license_disabled nonfree libfaac
1759
1760
1761 check_deps $ARCH_EXT_LIST
1762
1763 test -z "$need_memalign" && need_memalign="$mmx"
1764
1765 #Darwin CC versions
1766 if test $target_os = darwin; then
1767     if enabled xlc; then
1768         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1769     else
1770         add_cflags -pipe
1771         check_cflags -force_cpusubtype_ALL
1772         check_cflags -Wno-sign-compare
1773         enabled shared || check_cflags -mdynamic-no-pic
1774     fi
1775 fi
1776
1777 disabled optimizations || check_cflags -fomit-frame-pointer
1778
1779 # Add processor-specific flags
1780 if test $cpu != "generic"; then
1781     warn_altivec(){
1782         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1783     }
1784     case $cpu in
1785         601|ppc601|PowerPC601)
1786             add_cflags -mcpu=601
1787             warn_altivec enabled PPC601
1788         ;;
1789         603*|ppc603*|PowerPC603*)
1790             add_cflags -mcpu=603
1791             warn_altivec enabled PPC603
1792         ;;
1793         604*|ppc604*|PowerPC604*)
1794             add_cflags -mcpu=604
1795             warn_altivec enabled PPC604
1796         ;;
1797         G3|g3|75*|ppc75*|PowerPC75*)
1798             add_cflags -mcpu=750 -mpowerpc-gfxopt
1799             warn_altivec enabled PPC75x
1800         ;;
1801         G4|g4|745*|ppc745*|PowerPC745*)
1802             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1803             warn_altivec disabled PPC745x
1804         ;;
1805         74*|ppc74*|PowerPC74*)
1806             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1807             warn_altivec disabled PPC74xx
1808         ;;
1809         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1810             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1811             warn_altivec disabled PPC970
1812         ;;
1813         Cell|CELL|cell)
1814             add_cflags -mcpu=cell
1815             warn_altivec disabled Cell
1816             enable ldbrx
1817         ;;
1818         # targets that do NOT support conditional mov (cmov)
1819         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1820             add_cflags -march=$cpu
1821             disable cmov
1822         ;;
1823         # targets that do support conditional mov (cmov)
1824         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1825             add_cflags -march=$cpu
1826             enable cmov
1827             enable fast_cmov
1828         ;;
1829         # targets that do support conditional mov but on which it's slow
1830         pentium4|pentium4m|prescott|nocona)
1831             add_cflags -march=$cpu
1832             enable cmov
1833             disable fast_cmov
1834         ;;
1835         sparc64)
1836             add_cflags -mcpu=v9
1837         ;;
1838         arm11*|cortex*)
1839             add_cflags -mcpu=$cpu
1840             enable fast_unaligned
1841         ;;
1842         armv*)
1843             add_cflags -march=$cpu
1844         ;;
1845         arm*)
1846             add_cflags -mcpu=$cpu
1847         ;;
1848         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1849             enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1850         ;;
1851         bf*)
1852             add_cflags -mcpu=$cpu
1853         ;;
1854         mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1855             add_cflags -march=$cpu
1856         ;;
1857         *)
1858             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1859         ;;
1860     esac
1861 fi
1862
1863 check_cc <<EOF || die "Symbol mangling check failed."
1864 int ff_extern;
1865 EOF
1866 sym=$($nm -P -g $TMPO | grep ff_extern)
1867 extern_prefix=${sym%%ff_extern*}
1868
1869 check_cc <<EOF && enable inline_asm
1870 void foo(void) { __asm__ volatile ("" ::); }
1871 EOF
1872
1873 if enabled x86; then
1874     # check whether EBP is available on x86
1875     # As 'i' is stored on the stack, this program will crash
1876     # if the base pointer is used to access it because the
1877     # base pointer is cleared in the inline assembly code.
1878     check_exec_crash <<EOF && enable ebp_available
1879     volatile int i=0;
1880     __asm__ volatile (
1881         "xorl %%ebp, %%ebp"
1882     ::: "%ebp");
1883     return i;
1884 EOF
1885
1886     # check wether EBX is available on x86
1887     check_asm ebx_available '"":::"%ebx"'
1888
1889     # check whether more than 10 operands are supported
1890     check_cc <<EOF && enable ten_operands
1891 int main(void) {
1892     int x=0;
1893     __asm__ volatile(
1894         ""
1895         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1896     );
1897     return 0;
1898 }
1899 EOF
1900
1901     # check whether binutils is new enough to compile SSSE3/MMX2
1902     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1903     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1904
1905     check_asm bswap '"bswap %%eax" ::: "%eax"'
1906
1907     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1908     enabled     x86_64        && append YASMFLAGS "-m amd64"
1909     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1910     case "$objformat" in
1911         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1912         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1913         *)                    append YASMFLAGS "-DPREFIX"  ;;
1914     esac
1915     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1916 fi
1917
1918 # check for assembler specific support
1919
1920 enabled mips && check_asm loongson '"dmult.g $1, $2, $3"'
1921
1922 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1923 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1924 enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
1925
1926 # check for SIMD availability
1927
1928 # AltiVec flags: The FSF version of GCC differs from the Apple version
1929 if enabled altivec; then
1930     check_cflags -maltivec -mabi=altivec &&
1931         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1932         check_cflags -faltivec
1933
1934     # check if our compiler supports Motorola AltiVec C API
1935     check_cc <<EOF || disable altivec
1936 $inc_altivec_h
1937 int main(void) {
1938     vector signed int v1, v2, v3;
1939     v1 = vec_add(v2,v3);
1940     return 0;
1941 }
1942 EOF
1943
1944     # check if our compiler supports braces for vector declarations
1945     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1946 $inc_altivec_h
1947 int main (void) { (vector int) {1}; return 0; }
1948 EOF
1949 fi
1950
1951 # We have to check if pld is a nop and disable it.
1952 enabled arm     && check_asm pld     '"pld [r0]"'
1953 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1954 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1955 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1956 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1957 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1958 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1959 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1960 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1961
1962 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
1963
1964 # ---
1965 # big/little-endian test
1966 check_cc <<EOF || die "endian test failed"
1967 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1968 EOF
1969 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1970
1971 # ---
1972 # check availability of some header files
1973
1974 if check_func dlopen; then
1975     ldl=
1976 elif check_func dlopen -ldl; then
1977     ldl=-ldl
1978 fi
1979
1980 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
1981 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
1982
1983 check_func  fork
1984 check_func  gethrtime
1985 check_func  getrusage
1986 check_func  inet_aton $network_extralibs
1987 check_func  memalign
1988 check_func  mkstemp
1989 check_func  posix_memalign
1990 check_func_headers io.h setmode
1991 check_func_headers lzo/lzo1x.h lzo1x_999_compress
1992 check_func_headers windows.h GetProcessTimes
1993 check_func_headers windows.h VirtualAlloc
1994
1995 check_header conio.h
1996 check_header dlfcn.h
1997 check_header malloc.h
1998 check_header poll.h
1999 check_header sys/mman.h
2000 check_header sys/resource.h
2001 check_header sys/select.h
2002 check_header termios.h
2003 check_header vdpau/vdpau.h
2004 check_header vdpau/vdpau_x11.h
2005 check_header X11/extensions/XvMClib.h
2006
2007 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
2008     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2009 fi
2010
2011 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2012 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2013
2014 # check for some common methods of building with pthread support
2015 # do this before the optional library checks as some of them require pthreads
2016 if enabled pthreads; then
2017     if check_func pthread_create; then
2018         :
2019     elif check_func pthread_create -pthread; then
2020         add_cflags -pthread
2021         add_extralibs -pthread
2022     elif check_func pthread_create -pthreads; then
2023         add_cflags -pthreads
2024         add_extralibs -pthreads
2025     elif check_func pthread_create -lpthreadGC2; then
2026         add_extralibs -lpthreadGC2
2027     elif ! check_lib pthread.h pthread_create -lpthread; then
2028         die "ERROR: can't find pthreads library"
2029     fi
2030 fi
2031
2032 for thread in $THREADS_LIST; do
2033     if enabled $thread; then
2034         test -n "$thread_type" &&
2035             die "ERROR: Only one thread type must be selected." ||
2036             thread_type="$thread"
2037     fi
2038 done
2039
2040 check_lib math.h sin -lm
2041 check_lib va/va.h vaInitialize -lva
2042
2043 # test for C99 functions in math.h
2044 for func in llrint lrint lrintf round roundf truncf; do
2045     check_exec <<EOF && enable $func || disable $func
2046 #include <math.h>
2047 int main(void) { return ($func(3.999f) > 0)?0:1; }
2048 EOF
2049 done
2050
2051 # these are off by default, so fail if requested and not available
2052 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2053 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Decoder_Interface_init -lamrnb -lm
2054 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
2055 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2056                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2057                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2058 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2059 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2060 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2061 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2062 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2063 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2064 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2065                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2066 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2067 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2068 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2069 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2070                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2071                         die "ERROR: libx264 version must be >= 0.65."; }
2072 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2073 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2074
2075 # libdc1394 check
2076 if enabled libdc1394; then
2077     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2078         enable libdc1394_2; } ||
2079     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2080         enable libdc1394_1; } ||
2081     die "ERROR: No version of libdc1394 found "
2082 fi
2083
2084
2085 _restrict=
2086 for restrict_keyword in restrict __restrict__ __restrict; do
2087     check_cc <<EOF && _restrict=$restrict_keyword && break
2088 void foo(char * $restrict_keyword p);
2089 EOF
2090 done
2091
2092 ##########################################
2093 # SDL check
2094
2095 disable sdl_too_old
2096 disable sdl
2097 SDL_CONFIG="${cross_prefix}sdl-config"
2098 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2099     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2100     temp_cflags $sdl_cflags
2101     temp_extralibs $("${SDL_CONFIG}" --libs)
2102     if check_lib2 SDL.h SDL_Init; then
2103         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2104         if test "$_sdlversion" -lt 121 ; then
2105             enable sdl_too_old
2106         else
2107             enable sdl
2108             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2109 #include <SDL.h>
2110 int main(int argc, char **argv){
2111     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2112     int w = vi->current_w;
2113     return 0;
2114 }
2115 EOF
2116         fi
2117     fi
2118     restore_flags
2119 fi
2120
2121 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2122
2123 ##########################################
2124 # Network check
2125
2126 if enabled network; then
2127     check_type "sys/types.h sys/socket.h" socklen_t
2128     # Prefer arpa/inet.h over winsock2
2129     if check_header arpa/inet.h ; then
2130         check_func closesocket
2131     elif check_header winsock2.h ; then
2132         network_extralibs="-lws2_32"
2133         check_type ws2tcpip.h socklen_t
2134         check_func_headers winsock2.h closesocket
2135     fi
2136 fi
2137
2138 ##########################################
2139 # IPv6 check
2140
2141 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2142 #include <sys/types.h>
2143 #include <sys/socket.h>
2144 #include <netinet/in.h>
2145 #include <netdb.h>
2146 int main(void) {
2147     struct sockaddr_storage saddr;
2148     struct ipv6_mreq mreq6;
2149     getaddrinfo(0,0,0,0);
2150     getnameinfo(0,0,0,0,0,0,0);
2151     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2152 }
2153 EOF
2154
2155 check_header linux/videodev.h
2156 check_header linux/videodev2.h
2157 check_header sys/videoio.h
2158
2159 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2160
2161 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2162 { check_header dev/bktr/ioctl_meteor.h &&
2163   check_header dev/bktr/ioctl_bt848.h; } ||
2164 { check_header machine/ioctl_meteor.h &&
2165   check_header machine/ioctl_bt848.h; } ||
2166 { check_header dev/video/meteor/ioctl_meteor.h &&
2167   check_header dev/video/bktr/ioctl_bt848.h; } ||
2168 check_header dev/ic/bt8xx.h
2169
2170 check_header sys/soundcard.h
2171 check_header soundcard.h
2172
2173 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2174
2175 check_lib2 jack/jack.h jack_client_open -ljack
2176
2177 # deal with the X11 frame grabber
2178 enabled x11grab                         &&
2179 check_header X11/Xlib.h                 &&
2180 check_header X11/extensions/XShm.h      &&
2181 check_func XOpenDisplay -lX11           &&
2182 check_func XShmCreateImage -lX11 -lXext
2183
2184 enabled debug && add_cflags -g"$debuglevel"
2185
2186 # add some useful compiler flags if supported
2187 check_cflags -Wdeclaration-after-statement
2188 check_cflags -Wall
2189 check_cflags -Wno-switch
2190 check_cflags -Wdisabled-optimization
2191 check_cflags -Wpointer-arith
2192 check_cflags -Wredundant-decls
2193 check_cflags -Wno-pointer-sign
2194 check_cflags -Wcast-qual
2195 check_cflags -Wwrite-strings
2196 check_cflags -Wtype-limits
2197 check_cflags -Wundef
2198 enabled extra_warnings && check_cflags -Winline
2199
2200 # add some linker flags
2201 check_ldflags -Wl,--warn-common
2202 check_ldflags -Wl,--as-needed
2203 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'
2204 check_ldflags -Wl,-Bsymbolic
2205
2206 if enabled small; then
2207     check_cflags -Os            # not all compilers support -Os
2208     optimizations="small"
2209 elif enabled optimizations; then
2210     if enabled xlc; then
2211         add_cflags  -O5
2212         add_ldflags -O5
2213     elif enabled ccc; then
2214         add_cflags -fast
2215     else
2216         add_cflags -O3
2217     fi
2218 fi
2219 check_cflags -fno-math-errno
2220 check_cflags -fno-signed-zeros
2221
2222 # add some flags for Intel C Compiler
2223 if enabled icc; then
2224     # Just warnings, no remarks
2225     check_cflags -w1
2226     # -wd: Disable following warnings
2227     # 144, 167, 556: -Wno-pointer-sign
2228     # 10006: ignoring unknown option -fno-signed-zeros
2229     # 10156: ignoring option '-W'; no argument required
2230     check_cflags -wd144,167,556,10006,10156
2231     # 11030: Warning unknown option --as-needed
2232     # 10156: ignoring option '-export'; no argument required
2233     check_ldflags -wd10156,11030
2234     # Allow to compile with optimizations
2235     check_ldflags -march=$cpu
2236     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2237     enable ebp_available
2238 elif enabled ccc; then
2239     # disable some annoying warnings
2240     add_cflags -msg_disable cvtu32to64
2241     add_cflags -msg_disable embedcomment
2242     add_cflags -msg_disable needconstext
2243     add_cflags -msg_disable nomainieee
2244     add_cflags -msg_disable ptrmismatch1
2245     add_cflags -msg_disable unreachcode
2246 fi
2247
2248 # PIC flags for shared library objects where they are needed
2249 if enabled shared; then
2250     # LIBOBJFLAGS may have already been set in the OS configuration
2251     if test -z "$LIBOBJFLAGS" ; then
2252         case "${subarch-$arch}" in
2253             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2254         esac
2255     fi
2256 fi
2257
2258 if enabled gprof; then
2259     add_cflags  -p
2260     add_ldflags -p
2261 fi
2262
2263 # Find out if the .align argument is a power of two or not.
2264 check_asm asmalign_pot '".align 3"'
2265
2266 enabled_any $DECODER_LIST      && enable decoders
2267 enabled_any $ENCODER_LIST      && enable encoders
2268 enabled_any $HWACCEL_LIST      && enable hwaccels
2269 enabled_any $BSF_LIST          && enable bsfs
2270 enabled_any $DEMUXER_LIST      && enable demuxers
2271 enabled_any $MUXER_LIST        && enable muxers
2272 enabled_any $FILTER_LIST       && enable filters
2273 enabled_any $INDEV_LIST        && enable demuxers
2274 enabled_any $OUTDEV_LIST       && enable muxers
2275 enabled_any $PROTOCOL_LIST     && enable protocols
2276
2277 enabled_any $THREADS_LIST      && enable threads
2278
2279 check_deps $CONFIG_LIST       \
2280            $CONFIG_EXTRA      \
2281            $HAVE_LIST         \
2282            $DECODER_LIST      \
2283            $ENCODER_LIST      \
2284            $HWACCEL_LIST      \
2285            $PARSER_LIST       \
2286            $BSF_LIST          \
2287            $DEMUXER_LIST      \
2288            $MUXER_LIST        \
2289            $FILTER_LIST       \
2290            $INDEV_LIST        \
2291            $OUTDEV_LIST       \
2292            $PROTOCOL_LIST     \
2293
2294 echo "install prefix            $prefix"
2295 echo "source path               $source_path"
2296 echo "C compiler                $cc"
2297 echo ".align is power-of-two    $asmalign_pot"
2298 echo "ARCH                      $arch ($cpu)"
2299 if test "$build_suffix" != ""; then
2300     echo "build suffix              $build_suffix"
2301 fi
2302 if test "$extra_version" != ""; then
2303     echo "version string suffix     $extra_version"
2304 fi
2305 echo "big-endian                ${bigendian-no}"
2306 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2307 if enabled x86; then
2308     echo "yasm                      ${yasm-no}"
2309     echo "MMX enabled               ${mmx-no}"
2310     echo "MMX2 enabled              ${mmx2-no}"
2311     echo "3DNow! enabled            ${amd3dnow-no}"
2312     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2313     echo "SSE enabled               ${sse-no}"
2314     echo "SSSE3 enabled             ${ssse3-no}"
2315     echo "CMOV enabled              ${cmov-no}"
2316     echo "CMOV is fast              ${fast_cmov-no}"
2317     echo "EBX available             ${ebx_available-no}"
2318     echo "EBP available             ${ebp_available-no}"
2319     echo "10 operands supported     ${ten_operands-no}"
2320 fi
2321 if enabled arm; then
2322     echo "ARMv5TE enabled           ${armv5te-no}"
2323     echo "ARMv6 enabled             ${armv6-no}"
2324     echo "ARMv6T2 enabled           ${armv6t2-no}"
2325     echo "ARM VFP enabled           ${armvfp-no}"
2326     echo "IWMMXT enabled            ${iwmmxt-no}"
2327     echo "NEON enabled              ${neon-no}"
2328 fi
2329 if enabled mips; then
2330     echo "MMI enabled               ${mmi-no}"
2331 fi
2332 if enabled ppc; then
2333     echo "AltiVec enabled           ${altivec-no}"
2334     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2335     echo "dcbzl available           ${dcbzl-no}"
2336     echo "performance report        ${powerpc_perf-no}"
2337 fi
2338 if enabled sparc; then
2339     echo "VIS enabled               ${vis-no}"
2340 fi
2341 echo "gprof enabled             ${gprof-no}"
2342 echo "debug symbols             ${debug-no}"
2343 echo "strip symbols             ${stripping-no}"
2344 echo "optimizations             ${optimizations-no}"
2345 echo "static                    ${static-no}"
2346 echo "shared                    ${shared-no}"
2347 echo "postprocessing support    ${postproc-no}"
2348 echo "new filter support        ${avfilter-no}"
2349 echo "filters using lavformat   ${avfilter_lavf-no}"
2350 echo "network support           ${network-no}"
2351 if enabled network; then
2352     echo "IPv6 support              ${ipv6-no}"
2353 fi
2354 echo "threading support         ${thread_type-no}"
2355 echo "SDL support               ${sdl-no}"
2356 if enabled sdl_too_old; then
2357     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2358 fi
2359 echo "Sun medialib support      ${mlib-no}"
2360 echo "AVISynth enabled          ${avisynth-no}"
2361 echo "libamr-nb support         ${libamr_nb-no}"
2362 echo "libamr-wb support         ${libamr_wb-no}"
2363 echo "libdc1394 support         ${libdc1394-no}"
2364 echo "libdirac enabled          ${libdirac-no}"
2365 echo "libfaac enabled           ${libfaac-no}"
2366 echo "libfaad enabled           ${libfaad-no}"
2367 echo "libfaad dlopened          ${libfaadbin-no}"
2368 echo "libgsm enabled            ${libgsm-no}"
2369 echo "libmp3lame enabled        ${libmp3lame-no}"
2370 echo "libnut enabled            ${libnut-no}"
2371 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2372 echo "libschroedinger enabled   ${libschroedinger-no}"
2373 echo "libspeex enabled          ${libspeex-no}"
2374 echo "libtheora enabled         ${libtheora-no}"
2375 echo "libvorbis enabled         ${libvorbis-no}"
2376 echo "libx264 enabled           ${libx264-no}"
2377 echo "libxvid enabled           ${libxvid-no}"
2378 echo "zlib enabled              ${zlib-no}"
2379 echo "bzlib enabled             ${bzlib-no}"
2380 echo
2381
2382 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2383     echo "Enabled ${type}s:"
2384     eval list=\$$(toupper $type)_LIST
2385     for part in $list; do
2386         enabled $part && echo ${part%_*}
2387     done | sort | pr -3 -t
2388     echo
2389 done
2390
2391 license="LGPL version 2.1 or later"
2392 if enabled nonfree; then
2393     license="nonfree and unredistributable"
2394 elif enabled gpl; then
2395     license="GPL version 2 or later"
2396 fi
2397
2398 echo "License: $license"
2399
2400 echo "Creating config.mak and config.h..."
2401
2402 echo "# Automatically generated by configure - do not modify!" > config.mak
2403 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2404 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2405 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2406 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2407 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2408
2409 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2410 echo "prefix=$prefix" >> config.mak
2411 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2412 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2413 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2414 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2415 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2416 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2417 echo "SRC_PATH=\"$source_path\"" >> config.mak
2418 echo "SRC_PATH_BARE=$source_path" >> config.mak
2419 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2420 echo "CC=$cc" >> config.mak
2421 echo "AS=$as" >> config.mak
2422 echo "YASM=$yasmexe" >> config.mak
2423 echo "AR=$ar" >> config.mak
2424 echo "RANLIB=$ranlib" >> config.mak
2425 echo "LN_S=$ln_s" >> config.mak
2426 enabled stripping &&
2427     echo "STRIP=$strip" >> config.mak ||
2428     echo "STRIP=echo ignoring strip" >> config.mak
2429
2430 echo "OPTFLAGS=$CFLAGS" >> config.mak
2431 echo "LDFLAGS=$LDFLAGS" >> config.mak
2432 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2433 echo "SHFLAGS=$SHFLAGS" >> config.mak
2434 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2435 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2436 echo "BUILD_STATIC=$static" >> config.mak
2437 echo "BUILDSUF=$build_suffix" >> config.mak
2438 echo "FULLNAME=$FULLNAME" >> config.mak
2439 echo "LIBPREF=$LIBPREF" >> config.mak
2440 echo "LIBSUF=$LIBSUF" >> config.mak
2441 echo "LIBNAME=$LIBNAME" >> config.mak
2442 echo "SLIBPREF=$SLIBPREF" >> config.mak
2443 echo "SLIBSUF=$SLIBSUF" >> config.mak
2444 echo "EXESUF=$EXESUF" >> config.mak
2445 echo "EXTRA_VERSION=$extra_version" >> config.mak
2446 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2447 echo "HOSTCC=$host_cc" >> config.mak
2448 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2449 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2450 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2451 echo "HOSTLIBS=$host_libs" >> config.mak
2452 echo "TARGET_EXEC=$target_exec" >> config.mak
2453 echo "TARGET_PATH=$target_path" >> config.mak
2454
2455 if enabled bigendian; then
2456     echo "WORDS_BIGENDIAN=yes" >> config.mak
2457     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2458 fi
2459
2460 if enabled sdl; then
2461     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2462     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2463 fi
2464 if enabled texi2html; then
2465     echo "BUILD_DOC=yes" >> config.mak
2466 fi
2467
2468 get_version(){
2469     name=$1
2470     file=$source_path/$2
2471     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2472     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2473     lcname=$(tolower $name)
2474     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2475     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2476 }
2477
2478 get_version LIBSWSCALE  libswscale/swscale.h
2479 get_version LIBPOSTPROC libpostproc/postprocess.h
2480 get_version LIBAVCODEC  libavcodec/avcodec.h
2481 get_version LIBAVDEVICE libavdevice/avdevice.h
2482 get_version LIBAVFORMAT libavformat/avformat.h
2483 get_version LIBAVUTIL   libavutil/avutil.h
2484 get_version LIBAVFILTER libavfilter/avfilter.h
2485
2486 if enabled shared; then
2487     echo "BUILD_SHARED=yes" >> config.mak
2488     echo "PIC=-fPIC -DPIC" >> config.mak
2489     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2490     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2491     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2492     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2493     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2494     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2495     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2496     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2497 fi
2498 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2499 echo "EXTRALIBS=$extralibs" >> config.mak
2500
2501 echo "ARCH=$arch" >> config.mak
2502
2503 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2504 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2505 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2506                                       $CONFIG_EXTRA      \
2507                                       $DECODER_LIST      \
2508                                       $ENCODER_LIST      \
2509                                       $HWACCEL_LIST      \
2510                                       $PARSER_LIST       \
2511                                       $BSF_LIST          \
2512                                       $DEMUXER_LIST      \
2513                                       $MUXER_LIST        \
2514                                       $FILTER_LIST       \
2515                                       $PROTOCOL_LIST     \
2516                                       $INDEV_LIST        \
2517                                       $OUTDEV_LIST       \
2518
2519 echo "#define restrict $_restrict" >> $TMPH
2520
2521 if enabled small; then
2522     echo "#define av_always_inline"  >> $TMPH
2523 fi
2524
2525
2526 # Apparently it's not possible to portably echo a backslash.
2527 enabled asmalign_pot &&
2528     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2529     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2530
2531 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2532
2533 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2534
2535 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2536 cmp -s $TMPH config.h &&
2537     echo "config.h is unchanged" ||
2538     mv -f $TMPH config.h
2539
2540 # build tree in object directory if source path is different from current one
2541 if enabled source_path_used; then
2542     DIRS="\
2543         doc               \
2544         libavcodec        \
2545         libavcodec/alpha  \
2546         libavcodec/arm    \
2547         libavcodec/bfin   \
2548         libavcodec/mlib   \
2549         libavcodec/ppc    \
2550         libavcodec/sh4    \
2551         libavcodec/sparc  \
2552         libavcodec/x86    \
2553         libavdevice       \
2554         libavfilter       \
2555         libavformat       \
2556         libavutil         \
2557         libpostproc       \
2558         libswscale        \
2559         libswscale/bfin   \
2560         libswscale/mlib   \
2561         libswscale/ppc    \
2562         libswscale/sparc  \
2563         libswscale/x86    \
2564         tests             \
2565         tools             \
2566         "
2567     FILES="\
2568         Makefile             \
2569         common.mak           \
2570         subdir.mak           \
2571         doc/texi2pod.pl      \
2572         libavcodec/Makefile  \
2573         libavdevice/Makefile \
2574         libavfilter/Makefile \
2575         libavformat/Makefile \
2576         libavutil/Makefile   \
2577         libpostproc/Makefile \
2578         libswscale/Makefile  \
2579         "
2580     for dir in $DIRS ; do
2581         mkdir -p $dir
2582     done
2583     for f in $FILES ; do
2584         $ln_s "$source_path/$f" $f
2585     done
2586 fi
2587
2588
2589 # build pkg-config files
2590
2591 pkgconfig_generate(){
2592 name=$1
2593 shortname=${name#lib}${build_suffix}
2594 comment=$2
2595 version=$3
2596 libs=$4
2597 requires=$5
2598 cat <<EOF > $name/$name.pc
2599 prefix=$prefix
2600 exec_prefix=\${prefix}
2601 libdir=$libdir
2602 includedir=$incdir
2603
2604 Name: $name
2605 Description: $comment
2606 Version: $version
2607 Requires: $(disabled shared && echo $requires)
2608 Requires.private: $(enabled shared && echo $requires)
2609 Conflicts:
2610 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2611 Libs.private: $(enabled shared && echo $libs)
2612 Cflags: -I\${includedir}
2613 EOF
2614 cat <<EOF > $name/$name-uninstalled.pc
2615 prefix=
2616 exec_prefix=
2617 libdir=\${pcfiledir}
2618 includedir=${source_path}
2619
2620 Name: $name
2621 Description: $comment
2622 Version: $version
2623 Requires: $requires
2624 Conflicts:
2625 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2626 Cflags: -I\${includedir}
2627 EOF
2628 }
2629
2630 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2631 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2632 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2633 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2634 enabled avfilter &&
2635     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2636 enabled postproc &&
2637     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2638 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"