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     parisc
 834     ppc
 835     s390
 836     sh4
 837     sparc
 838     sparc64
 839     x86
 840     x86_32
 841     x86_64
 842 '
 843
 844 ARCH_EXT_LIST='
 845     altivec
 846     amd3dnow
 847     amd3dnowext
 848     armv5te
 849     armv6
 850     armv6t2
 851     armvfp
 852     iwmmxt
 853     mmi
 854     mmx
 855     mmx2
 856     neon
 857     ppc4xx
 858     sse
 859     ssse3
 860     vis
 861 '
 862
 863 HAVE_LIST="
 864     $ARCH_EXT_LIST
 865     $THREADS_LIST
 866     alsa_asoundlib_h
 867     altivec_h
 868     arpa_inet_h
 869     bswap
 870     closesocket
 871     cmov
 872     conio_h
 873     dcbzl
 874     dev_bktr_ioctl_bt848_h
 875     dev_bktr_ioctl_meteor_h
 876     dev_ic_bt8xx_h
 877     dev_video_meteor_ioctl_meteor_h
 878     dev_video_bktr_ioctl_bt848_h
 879     dlfcn_h
 880     dlopen
 881     dos_paths
 882     ebp_available
 883     ebx_available
 884     fast_64bit
 885     fast_cmov
 886     fast_unaligned
 887     fork
 888     gethrtime
 889     GetProcessTimes
 890     getrusage
 891     inet_aton
 892     inline_asm
 893     ldbrx
 894     libdc1394_1
 895     libdc1394_2
 896     llrint
 897     lrint
 898     lrintf
 899     lzo1x_999_compress
 900     machine_ioctl_bt848_h
 901     machine_ioctl_meteor_h
 902     malloc_h
 903     memalign
 904     mkstemp
 905     pld
 906     posix_memalign
 907     ppc64
 908     round
 909     roundf
 910     sdl
 911     sdl_video_size
 912     setmode
 913     socklen_t
 914     soundcard_h
 915     poll_h
 916     sys_mman_h
 917     sys_resource_h
 918     sys_select_h
 919     sys_soundcard_h
 920     sys_videoio_h
 921     ten_operands
 922     termios_h
 923     threads
 924     truncf
 925     VirtualAlloc
 926     winsock2_h
 927     xform_asm
 928     yasm
 929 "
 930
 931 # options emitted with CONFIG_ prefix but not available on command line
 932 CONFIG_EXTRA="
 933 "
 934
 935 CMDLINE_SELECT="
 936     $ARCH_EXT_LIST
 937     $CONFIG_LIST
 938     $THREADS_LIST
 939     cross_compile
 940     debug
 941     extra_warnings
 942     logging
 943     optimizations
 944     stripping
 945     yasm
 946 "
 947
 948 PATHS_LIST='
 949     bindir
 950     datadir
 951     incdir
 952     libdir
 953     mandir
 954     prefix
 955     shlibdir
 956 '
 957
 958 CMDLINE_SET="
 959     $PATHS_LIST
 960     arch
 961     as
 962     build_suffix
 963     cc
 964     cpu
 965     cross_prefix
 966     extra_version
 967     host_cc
 968     host_cflags
 969     host_ldflags
 970     host_libs
 971     host_os
 972     logfile
 973     nm
 974     source_path
 975     sysinclude
 976     sysroot
 977     target_exec
 978     target_os
 979     target_path
 980 "
 981
 982 # code dependency declarations
 983
 984 # architecture extensions
 985 altivec_deps="ppc"
 986 amd3dnow_deps="mmx"
 987 amd3dnowext_deps="amd3dnow"
 988 armv5te_deps="arm"
 989 armv6_deps="arm"
 990 armv6t2_deps="arm"
 991 armvfp_deps="arm"
 992 iwmmxt_deps="arm"
 993 mmi_deps="mips"
 994 mmx_deps="x86"
 995 mmx2_deps="mmx"
 996 neon_deps="arm"
 997 ppc4xx_deps="ppc"
 998 sse_deps="mmx"
 999 ssse3_deps="sse"
1000 vis_deps="sparc"
1001
1002 # decoders / encoders / hardware accelerators
1003 aac_decoder_select="fft mdct"
1004 ac3_decoder_deps="gpl"
1005 ac3_decoder_select="fft mdct"
1006 atrac3_decoder_select="fft mdct"
1007 cavs_decoder_select="golomb"
1008 cook_decoder_select="fft mdct"
1009 cscd_decoder_suggest="zlib"
1010 dca_decoder_select="fft mdct"
1011 dnxhd_encoder_select="aandct"
1012 dxa_decoder_select="zlib"
1013 eac3_decoder_deps="gpl"
1014 eac3_decoder_select="fft mdct"
1015 eatgq_decoder_select="aandct"
1016 eatqi_decoder_select="aandct"
1017 ffv1_decoder_select="golomb"
1018 flac_decoder_select="golomb"
1019 flac_encoder_select="golomb"
1020 flashsv_decoder_select="zlib"
1021 flashsv_encoder_select="zlib"
1022 flv_encoder_select="aandct"
1023 h261_encoder_select="aandct"
1024 h263_encoder_select="aandct"
1025 h263_vaapi_hwaccel_deps="va_va_h"
1026 h263p_encoder_select="aandct"
1027 h264_decoder_select="golomb"
1028 h264_vaapi_hwaccel_deps="va_va_h"
1029 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1030 imc_decoder_select="fft mdct"
1031 jpegls_decoder_select="golomb"
1032 jpegls_encoder_select="golomb"
1033 ljpeg_encoder_select="aandct"
1034 loco_decoder_select="golomb"
1035 mjpeg_encoder_select="aandct"
1036 mpeg1video_encoder_select="aandct"
1037 mpeg2video_encoder_select="aandct"
1038 mpeg4_encoder_select="aandct"
1039 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1040 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1041 mpeg2_vaapi_hwaccel_deps="va_va_h"
1042 mpeg4_vaapi_hwaccel_deps="va_va_h"
1043 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1044 msmpeg4v1_encoder_select="aandct"
1045 msmpeg4v2_encoder_select="aandct"
1046 msmpeg4v3_encoder_select="aandct"
1047 nellymoser_decoder_select="fft mdct"
1048 nellymoser_encoder_select="fft mdct"
1049 png_decoder_select="zlib"
1050 png_encoder_select="zlib"
1051 qdm2_decoder_select="fft mdct rdft"
1052 rv10_encoder_select="aandct"
1053 rv20_encoder_select="aandct"
1054 rv30_decoder_select="golomb"
1055 rv40_decoder_select="golomb"
1056 shorten_decoder_select="golomb"
1057 sonic_decoder_select="golomb"
1058 sonic_encoder_select="golomb"
1059 sonic_ls_encoder_select="golomb"
1060 svq3_decoder_select="golomb"
1061 svq3_decoder_suggest="zlib"
1062 tiff_decoder_suggest="zlib"
1063 tiff_encoder_suggest="zlib"
1064 tscc_decoder_select="zlib"
1065 vc1_vaapi_hwaccel_deps="va_va_h"
1066 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1067 vorbis_decoder_select="fft mdct"
1068 vorbis_encoder_select="fft mdct"
1069 wmav1_decoder_select="fft mdct"
1070 wmav1_encoder_select="fft mdct"
1071 wmav2_decoder_select="fft mdct"
1072 wmav2_encoder_select="fft mdct"
1073 wmv1_encoder_select="aandct"
1074 wmv2_encoder_select="aandct"
1075 wmv3_vaapi_hwaccel_deps="va_va_h"
1076 wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1077 zlib_decoder_select="zlib"
1078 zlib_encoder_select="zlib"
1079 zmbv_decoder_select="zlib"
1080 zmbv_encoder_select="zlib"
1081
1082 # external libraries
1083 libamr_nb_decoder_deps="libamr_nb"
1084 libamr_nb_encoder_deps="libamr_nb"
1085 libamr_wb_decoder_deps="libamr_wb"
1086 libamr_wb_encoder_deps="libamr_wb"
1087 libdirac_decoder_deps="libdirac !libschroedinger"
1088 libdirac_encoder_deps="libdirac"
1089 libfaac_encoder_deps="libfaac"
1090 libfaad_decoder_deps="libfaad"
1091 libfaadbin_decoder_extralibs='$ldl'
1092 libgsm_decoder_deps="libgsm"
1093 libgsm_encoder_deps="libgsm"
1094 libgsm_ms_decoder_deps="libgsm"
1095 libgsm_ms_encoder_deps="libgsm"
1096 libmp3lame_encoder_deps="libmp3lame"
1097 libopenjpeg_decoder_deps="libopenjpeg"
1098 libschroedinger_decoder_deps="libschroedinger"
1099 libschroedinger_encoder_deps="libschroedinger"
1100 libspeex_decoder_deps="libspeex"
1101 libtheora_encoder_deps="libtheora"
1102 libvorbis_encoder_deps="libvorbis"
1103 libx264_encoder_deps="libx264"
1104 libxvid_encoder_deps="libxvid"
1105
1106 # demuxers / muxers
1107 ac3_demuxer_deps="ac3_parser"
1108 alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1109 alsa_demuxer_extralibs="-lasound"
1110 alsa_muxer_deps="alsa_asoundlib_h"
1111 alsa_muxer_extralibs="-lasound"
1112 audio_beos_demuxer_deps="audio_beos"
1113 audio_beos_demuxer_extralibs="-lmedia -lbe"
1114 audio_beos_muxer_deps="audio_beos"
1115 audio_beos_muxer_extralibs="-lmedia -lbe"
1116 avisynth_demuxer_deps="avisynth"
1117 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1118 dirac_demuxer_deps="dirac_parser"
1119 dv1394_demuxer_deps="dv1394 dv_demuxer"
1120 jack_demuxer_deps="jack_jack_h"
1121 jack_demuxer_extralibs="-ljack"
1122 libdc1394_demuxer_deps="libdc1394"
1123 libnut_demuxer_deps="libnut"
1124 libnut_muxer_deps="libnut"
1125 matroska_demuxer_suggest="zlib bzlib"
1126 mov_demuxer_suggest="zlib"
1127 mp3_demuxer_deps="mpegaudio_parser"
1128 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1129 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1130 redir_demuxer_deps="network"
1131 rtp_muxer_deps="network rtp_protocol"
1132 rtsp_demuxer_deps="sdp_demuxer"
1133 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1134 v4l_demuxer_deps="linux_videodev_h"
1135 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1136 vfwcap_demuxer_deps="capCreateCaptureWindow"
1137 vfwcap_demuxer_extralibs="-lvfw32"
1138 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1139 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1140
1141 # protocols
1142 gopher_protocol_deps="network"
1143 http_protocol_deps="network"
1144 rtp_protocol_deps="udp_protocol"
1145 tcp_protocol_deps="network"
1146 udp_protocol_deps="network"
1147
1148 # filters
1149 movie_filter_deps="avfilter_lavf"
1150
1151 # programs
1152 ffplay_deps="sdl"
1153 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1154 ffserver_extralibs='$ldl'
1155
1156
1157 # default parameters
1158
1159 logfile="config.err"
1160
1161 # installation paths
1162 prefix_default="/usr/local"
1163 bindir_default='${prefix}/bin'
1164 datadir_default='${prefix}/share/ffmpeg'
1165 incdir_default='${prefix}/include'
1166 libdir_default='${prefix}/lib'
1167 mandir_default='${prefix}/share/man'
1168 shlibdir_default="$libdir_default"
1169
1170 # toolchain
1171 ar="ar"
1172 cc_default="gcc"
1173 host_cc_default="gcc"
1174 ln_s="ln -sf"
1175 nm_default="nm"
1176 objformat="elf"
1177 ranlib="ranlib"
1178 strip="strip"
1179 yasmexe="yasm"
1180
1181 # machine
1182 arch=$(uname -m)
1183 cpu="generic"
1184
1185 # OS
1186 target_os=$(tolower $(uname -s))
1187 host_os=$target_os
1188
1189 # configurable options
1190 enable debug
1191 enable fastdiv
1192 enable ffmpeg
1193 enable ffplay
1194 enable ffserver
1195 enable ipv6
1196 enable mpegaudio_hp
1197 enable network
1198 enable optimizations
1199 enable protocols
1200 enable static
1201 enable stripping
1202 enable swscale_alpha
1203
1204 # build settings
1205 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1206 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1207 FFSERVERLDFLAGS=-Wl,-E
1208 LIBPREF="lib"
1209 LIBSUF=".a"
1210 FULLNAME='$(NAME)$(BUILDSUF)'
1211 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1212 SLIBPREF="lib"
1213 SLIBSUF=".so"
1214 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1215 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1216 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1217 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1218
1219 host_cflags='-O3 -g -Wall'
1220 host_libs='-lm'
1221
1222 target_path='.'
1223
1224 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1225 # full relative path for objects in subdirectories for non-recursive Make.
1226 DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1227
1228 # find source path
1229 source_path="$(dirname "$0")"
1230 enable source_path_used
1231 if test -z "$source_path" -o "$source_path" = "." ; then
1232     source_path="$(pwd)"
1233     disable source_path_used
1234 else
1235     source_path="$(cd "$source_path"; pwd)"
1236     echo "$source_path" | grep -q '[[:blank:]]' &&
1237         die "Out of tree builds are impossible with whitespace in source path."
1238     test -e "$source_path/config.h" &&
1239         die "Out of tree builds are impossible with config.h in source dir."
1240 fi
1241
1242 for v in "$@"; do
1243     r="${v#*=}"
1244     l="${v%$r}"
1245     test "$r" = "${r#* }" || r="'$r'"
1246     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1247 done
1248
1249 find_things(){
1250     thing=$1
1251     pattern=$2
1252     file=$source_path/$3
1253     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1254 }
1255
1256 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1257 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1258 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1259 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1260 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1261 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1262 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1263 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1264 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1265 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1266 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1267
1268 enable $ARCH_EXT_LIST \
1269        $DECODER_LIST \
1270        $ENCODER_LIST \
1271        $HWACCEL_LIST \
1272        $PARSER_LIST \
1273        $BSF_LIST \
1274        $DEMUXER_LIST \
1275        $MUXER_LIST \
1276        $FILTER_LIST \
1277        $PROTOCOL_LIST \
1278        $INDEV_LIST \
1279        $OUTDEV_LIST \
1280
1281 die_unknown(){
1282     echo "Unknown option \"$1\"."
1283     echo "See $0 --help for available options."
1284     exit 1
1285 }
1286
1287 show_list() {
1288     suffix=_$1
1289     shift
1290     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1291     exit 0
1292 }
1293
1294 for opt do
1295     optval="${opt#*=}"
1296     case "$opt" in
1297     --extra-cflags=*) add_cflags $optval
1298     ;;
1299     --extra-ldflags=*) add_ldflags $optval
1300     ;;
1301     --extra-libs=*) add_extralibs $optval
1302     ;;
1303     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1304     ;;
1305     --enable-debug=*) debuglevel="$optval"
1306     ;;
1307     --enable-*=*|--disable-*=*)
1308     eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1309     case "$thing" in
1310         encoder|decoder|hwaccel|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1311         *) die_unknown "$opt" ;;
1312     esac
1313     ;;
1314     --enable-?*|--disable-?*)
1315     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1316     if is_in $option $COMPONENT_LIST; then
1317         eval $action \$$(toupper ${option%s})_LIST
1318     elif is_in $option $CMDLINE_SELECT; then
1319         $action $option
1320     else
1321         die_unknown $opt
1322     fi
1323     ;;
1324     --list-*)
1325         NAME="${opt#--list-}"
1326         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1327         NAME=${NAME%s}
1328         eval show_list $NAME \$$(toupper $NAME)_LIST
1329     ;;
1330     --help|-h) show_help
1331     ;;
1332     *)
1333     optname="${opt%%=*}"
1334     optname="${optname#--}"
1335     optname=$(echo "$optname" | sed 's/-/_/g')
1336     is_in $optname $CMDLINE_SET || die_unknown $opt
1337     eval $optname='$optval'
1338     ;;
1339     esac
1340 done
1341
1342 disabled logging && logfile=/dev/null
1343
1344 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1345 set >> $logfile
1346
1347 test -n "$cross_prefix" && enable cross_compile
1348
1349 ar="${cross_prefix}${ar}"
1350 cc_default="${cross_prefix}${cc_default}"
1351 nm_default="${cross_prefix}${nm_default}"
1352 ranlib="${cross_prefix}${ranlib}"
1353 strip="${cross_prefix}${strip}"
1354
1355 sysinclude_default="${sysroot}/usr/include"
1356
1357 set_default cc nm sysinclude
1358 as_default=$cc
1359 enabled cross_compile || host_cc_default=$cc
1360 set_default host_cc
1361
1362 exesuf() {
1363     case $1 in
1364         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1365     esac
1366 }
1367
1368 EXESUF=$(exesuf $target_os)
1369 HOSTEXESUF=$(exesuf $host_os)
1370
1371 # set temporary file name
1372 : ${TMPDIR:=$TEMPDIR}
1373 : ${TMPDIR:=$TMP}
1374 : ${TMPDIR:=/tmp}
1375
1376 if ! check_cmd type mktemp; then
1377     # simple replacement for missing mktemp
1378     # NOT SAFE FOR GENERAL USE
1379     mktemp(){
1380         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1381     }
1382 fi
1383
1384 tmpfile(){
1385     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1386         (set -C; exec > $tmp) 2>/dev/null ||
1387         die "Unable to create temoporary file in $TMPDIR."
1388     append TMPFILES $tmp
1389     eval $1=$tmp
1390 }
1391
1392 trap 'rm -f -- $TMPFILES' EXIT
1393 trap exit HUP INT TERM
1394
1395 tmpfile TMPC  .c
1396 tmpfile TMPE  $EXESUF
1397 tmpfile TMPH  .h
1398 tmpfile TMPO  .o
1399 tmpfile TMPS  .S
1400 tmpfile TMPSH .sh
1401
1402 unset -f mktemp
1403
1404 # make sure we can execute files in $TMPDIR
1405 cat > $TMPSH 2>> $logfile <<EOF
1406 #! /bin/sh
1407 EOF
1408 chmod +x $TMPSH >> $logfile 2>&1
1409 if ! $TMPSH >> $logfile 2>&1; then
1410     cat <<EOF
1411 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1412 variable to another directory and make sure that it is not mounted noexec.
1413 EOF
1414     die "Sanity test failed."
1415 fi
1416
1417 if   $cc --version 2>/dev/null | grep -qi gcc; then
1418     cc_type=gcc
1419 elif $cc --version 2>/dev/null | grep -q Intel; then
1420     cc_type=icc
1421 elif $cc -v 2>&1 | grep -q xlc; then
1422     cc_type=xlc
1423 elif $cc -V 2>/dev/null | grep -q Compaq; then
1424     cc_type=ccc
1425     DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1426     debuglevel=3
1427     add_ldflags -Wl,-z,now # calls to libots crash without this
1428 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1429     test -d "$sysroot" || die "No valid sysroot specified."
1430     cc_type=armcc
1431     armcc_conf="$PWD/armcc.conf"
1432     $cc --arm_linux_configure                 \
1433         --arm_linux_config_file="$armcc_conf" \
1434         --configure_sysroot="$sysroot"        \
1435         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1436         die "Error creating armcc configuration file."
1437     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1438     as_default="${cross_prefix}gcc"
1439 fi
1440
1441 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1442
1443 set_default as
1444
1445 if test -n "$sysroot"; then
1446     case "$cc_type" in
1447         gcc)
1448             add_cflags  --sysroot="$sysroot"
1449             add_ldflags --sysroot="$sysroot"
1450         ;;
1451     esac
1452 fi
1453
1454 # compiler sanity check
1455 check_exec <<EOF
1456 int main(void){ return 0; }
1457 EOF
1458 if test "$?" != 0; then
1459     echo "$cc is unable to create an executable file."
1460     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1461         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1462         echo "Only do this if you know what cross compiling means."
1463     fi
1464     die "C compiler test failed."
1465 fi
1466
1467 check_cflags -std=c99
1468 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1469 #include <stdlib.h>
1470 EOF
1471 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1472 #include <stdlib.h>
1473 EOF
1474
1475 case "$arch" in
1476     alpha)
1477         arch="alpha"
1478         enable fast_64bit
1479         check_cflags -mieee
1480     ;;
1481     arm|armv[4567]*l)
1482         arch="arm"
1483     ;;
1484     avr32)
1485     ;;
1486     bfin)
1487         arch="bfin"
1488     ;;
1489     ia64)
1490         arch="ia64"
1491         enable fast_64bit
1492     ;;
1493     m68k)
1494         arch="m68k"
1495     ;;
1496     mips|mipsel|IP*)
1497         arch="mips"
1498     ;;
1499     mips64)
1500         arch="mips"
1501         enable fast_64bit
1502     ;;
1503     parisc|hppa)
1504         arch="parisc"
1505     ;;
1506     parisc64|hppa64)
1507         arch="parisc"
1508         enable fast_64bit
1509     ;;
1510     "Power Macintosh"|ppc|powerpc)
1511         arch="ppc"
1512         enable fast_unaligned
1513     ;;
1514     ppc64)
1515         arch="ppc"
1516         enable fast_64bit
1517         enable fast_unaligned
1518     ;;
1519     s390|s390x)
1520         arch="s390"
1521     ;;
1522     sh4|sh)
1523         arch="sh4"
1524     ;;
1525     sparc)
1526         arch="sparc"
1527     ;;
1528     sun4u|sparc64)
1529         arch="sparc"
1530         subarch="sparc64"
1531         enable fast_64bit
1532     ;;
1533     i386|i486|i586|i686|i86pc|BePC)
1534         arch="x86"
1535         subarch="x86_32"
1536         enable fast_unaligned
1537     ;;
1538     x86_64|amd64)
1539         arch="x86"
1540         subarch="x86_32"
1541         enable cmov
1542         enable fast_cmov
1543         enable fast_unaligned
1544         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1545         int test[sizeof(char*) - 7];
1546 EOF
1547     ;;
1548     *)
1549         arch="unknown"
1550     ;;
1551 esac
1552
1553 enable $arch $subarch
1554
1555 # OS specific
1556 case $target_os in
1557     beos|haiku|zeta)
1558         prefix_default="$HOME/config"
1559         # helps building libavcodec
1560         add_cflags -DPIC -fomit-frame-pointer
1561         # 3 gcc releases known for BeOS, each with ugly bugs
1562         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1563         case "$gcc_version" in
1564           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1565             disable mmx
1566             ;;
1567           *20010315*) echo "BeBits gcc"
1568             add_cflags -fno-expensive-optimizations
1569             ;;
1570         esac
1571         SHFLAGS=-nostart
1572         # enable BeOS things
1573         enable audio_beos
1574         # no need for libm, but the inet stuff
1575         # Check for BONE
1576         # XXX: actually should check for NOT net_server
1577         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1578             network_extralibs="-lbind -lsocket"
1579         else
1580             enable beos_netserver
1581             network_extralibs="-lnet"
1582         fi ;;
1583     sunos)
1584         FFSERVERLDFLAGS=""
1585         SHFLAGS='-shared -Wl,-h,$$(@F)'
1586         network_extralibs="-lsocket -lnsl"
1587         add_cflags -D__EXTENSIONS__
1588         ;;
1589     netbsd)
1590         oss_demuxer_extralibs="-lossaudio"
1591         oss_muxer_extralibs="-lossaudio"
1592         ;;
1593     openbsd)
1594         disable need_memalign
1595         LIBOBJFLAGS='$(PIC)'
1596         SHFLAGS='-shared'
1597         oss_demuxer_extralibs="-lossaudio"
1598         oss_muxer_extralibs="-lossaudio"
1599         ;;
1600     freebsd)
1601         disable need_memalign
1602         ;;
1603     bsd/os)
1604         osextralibs="-lpoll -lgnugetopt"
1605         strip="strip -d"
1606         ;;
1607     darwin)
1608         disable need_memalign
1609         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1610         strip="strip -x"
1611         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1612         SLIBSUF=".dylib"
1613         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1614         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1615         FFSERVERLDFLAGS=-Wl,-bind_at_load
1616         objformat="macho"
1617         enabled x86_64 && objformat="macho64"
1618         ;;
1619     mingw32*)
1620         target_os=mingw32
1621         LIBTARGET=i386
1622         if enabled x86_64; then
1623             disable need_memalign
1624             LIBTARGET=x64
1625         fi
1626         shlibdir_default="$bindir_default"
1627         disable ffserver
1628         SLIBPREF=""
1629         SLIBSUF=".dll"
1630         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1631         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1632         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1633         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1634             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1635         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1636         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1637         objformat="win32"
1638         enable dos_paths
1639         check_cflags -fno-common
1640         if ! enabled x86_64; then
1641             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1642                 die "ERROR: MinGW runtime version must be >= 3.15."
1643             enabled_any avisynth vfwcap_demuxer &&
1644                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1645                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1646             fi
1647         ;;
1648     cygwin*)
1649         target_os=cygwin
1650         shlibdir_default="$bindir_default"
1651         SLIBPREF="cyg"
1652         SLIBSUF=".dll"
1653         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1654         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1655         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1656         objformat="win32"
1657         enable dos_paths
1658         check_cflags -fno-common
1659         ;;
1660     *-dos|freedos|opendos)
1661         disable ffplay ffserver
1662         disable $INDEV_LIST $OUTDEV_LIST
1663         network_extralibs="-lsocket"
1664         objformat="coff"
1665         enable dos_paths
1666         ;;
1667     linux)
1668         enable dv1394
1669         ;;
1670     irix*)
1671         target_os=irix
1672         ranlib="echo ignoring ranlib"
1673         ;;
1674     os/2*)
1675         strip="lxlite"
1676         ln_s="cp -f"
1677         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1678         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1679         FFSERVERLDFLAGS=""
1680         LIBSUF="_s.a"
1681         SLIBPREF=""
1682         SLIBSUF=".dll"
1683         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1684         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1685         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1686           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1687           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1688           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1689           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1690           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1691         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1692           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1693         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1694         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1695         enable dos_paths
1696         ;;
1697
1698     *)
1699         die "Unknown OS '$target_os'."
1700         ;;
1701 esac
1702
1703 set_default $PATHS_LIST
1704
1705 add_extralibs $osextralibs
1706
1707 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1708 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1709
1710 # we need to build at least one lib type
1711 if ! enabled_any static shared; then
1712     cat <<EOF
1713 At least one library type must be built.
1714 Specify --enable-static to build the static libraries or --enable-shared to
1715 build the shared libraries as well. To only build the shared libraries specify
1716 --disable-static in addition to --enable-shared.
1717 EOF
1718     exit 1;
1719 fi
1720
1721 disabled static && LIBNAME=""
1722
1723 if enabled_any libfaad libfaadbin ; then
1724     if check_header faad.h; then
1725         check_cc <<EOF
1726 #include <faad.h>
1727 #ifndef FAAD2_VERSION
1728 ok faad1
1729 #endif
1730 int main(void) { return 0; }
1731 EOF
1732         test $? = 0 && enable libfaad2
1733     else
1734         die "FAAD test failed."
1735     fi
1736 fi
1737
1738
1739 if ! enabled gpl; then
1740     die_gpl_disabled(){
1741         name=$1
1742         shift
1743         enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1744     }
1745     die_gpl_disabled "The Postprocessing code" postproc
1746     die_gpl_disabled "libx264"                 libx264
1747     die_gpl_disabled "libxvidcore"             libxvid
1748     die_gpl_disabled "FAAD2"                   libfaad2
1749     die_gpl_disabled "The X11 grabber"         x11grab
1750 fi
1751
1752 if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
1753     die "libamr is nonfree and --enable-nonfree is not specified."
1754 fi
1755
1756 check_deps $ARCH_EXT_LIST
1757
1758 test -z "$need_memalign" && need_memalign="$mmx"
1759
1760 #Darwin CC versions
1761 if test $target_os = darwin; then
1762     if enabled xlc; then
1763         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1764     else
1765         add_cflags -pipe
1766         check_cflags -force_cpusubtype_ALL
1767         check_cflags -Wno-sign-compare
1768         enabled shared || check_cflags -mdynamic-no-pic
1769     fi
1770 fi
1771
1772 disabled optimizations || check_cflags -fomit-frame-pointer
1773
1774 # Add processor-specific flags
1775 if test $cpu != "generic"; then
1776     warn_altivec(){
1777         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1778     }
1779     case $cpu in
1780         601|ppc601|PowerPC601)
1781             add_cflags -mcpu=601
1782             warn_altivec enabled PPC601
1783         ;;
1784         603*|ppc603*|PowerPC603*)
1785             add_cflags -mcpu=603
1786             warn_altivec enabled PPC603
1787         ;;
1788         604*|ppc604*|PowerPC604*)
1789             add_cflags -mcpu=604
1790             warn_altivec enabled PPC604
1791         ;;
1792         G3|g3|75*|ppc75*|PowerPC75*)
1793             add_cflags -mcpu=750 -mpowerpc-gfxopt
1794             warn_altivec enabled PPC75x
1795         ;;
1796         G4|g4|745*|ppc745*|PowerPC745*)
1797             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1798             warn_altivec disabled PPC745x
1799         ;;
1800         74*|ppc74*|PowerPC74*)
1801             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1802             warn_altivec disabled PPC74xx
1803         ;;
1804         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1805             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1806             warn_altivec disabled PPC970
1807             enable ppc64
1808         ;;
1809         Cell|CELL|cell)
1810             add_cflags -mcpu=cell
1811             warn_altivec disabled Cell
1812             enable ppc64 ldbrx
1813         ;;
1814         # targets that do NOT support conditional mov (cmov)
1815         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1816             add_cflags -march=$cpu
1817             disable cmov
1818         ;;
1819         # targets that do support conditional mov (cmov)
1820         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1821             add_cflags -march=$cpu
1822             enable cmov
1823             enable fast_cmov
1824         ;;
1825         # targets that do support conditional mov but on which it's slow
1826         pentium4|pentium4m|prescott|nocona)
1827             add_cflags -march=$cpu
1828             enable cmov
1829             disable fast_cmov
1830         ;;
1831         sparc64)
1832             add_cflags -mcpu=v9
1833         ;;
1834         arm11*|cortex*)
1835             add_cflags -mcpu=$cpu
1836             enable fast_unaligned
1837         ;;
1838         armv*)
1839             add_cflags -march=$cpu
1840         ;;
1841         arm*)
1842             add_cflags -mcpu=$cpu
1843         ;;
1844         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1845             enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1846         ;;
1847         *)
1848             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1849         ;;
1850     esac
1851 fi
1852
1853 check_cc <<EOF || die "Symbol mangling check failed."
1854 int ff_extern;
1855 EOF
1856 sym=$($nm -P -g $TMPO | grep ff_extern)
1857 extern_prefix=${sym%%ff_extern*}
1858
1859 check_cc <<EOF && enable inline_asm
1860 void foo(void) { __asm__ volatile ("" ::); }
1861 EOF
1862
1863 if enabled x86; then
1864     # check whether EBP is available on x86
1865     # As 'i' is stored on the stack, this program will crash
1866     # if the base pointer is used to access it because the
1867     # base pointer is cleared in the inline assembly code.
1868     check_exec_crash <<EOF && enable ebp_available
1869     volatile int i=0;
1870     __asm__ volatile (
1871         "xorl %%ebp, %%ebp"
1872     ::: "%ebp");
1873     return i;
1874 EOF
1875
1876     # check wether EBX is available on x86
1877     check_asm ebx_available '"":::"%ebx"'
1878
1879     # check whether more than 10 operands are supported
1880     check_cc <<EOF && enable ten_operands
1881 int main(void) {
1882     int x=0;
1883     __asm__ volatile(
1884         ""
1885         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1886     );
1887     return 0;
1888 }
1889 EOF
1890
1891     # check whether binutils is new enough to compile SSSE3/MMX2
1892     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1893     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1894
1895     check_asm bswap '"bswap %%eax" ::: "%eax"'
1896
1897     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1898     enabled     x86_64        && append YASMFLAGS "-m amd64"
1899     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1900     case "$objformat" in
1901         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1902         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1903         *)                    append YASMFLAGS "-DPREFIX"  ;;
1904     esac
1905     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1906 fi
1907
1908 # check for assembler specific support
1909
1910 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1911 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1912 enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
1913
1914 # check for SIMD availability
1915
1916 # AltiVec flags: The FSF version of GCC differs from the Apple version
1917 if enabled altivec; then
1918     check_cflags -maltivec -mabi=altivec &&
1919         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1920         check_cflags -faltivec
1921
1922     # check if our compiler supports Motorola AltiVec C API
1923     check_cc <<EOF || disable altivec
1924 $inc_altivec_h
1925 int main(void) {
1926     vector signed int v1, v2, v3;
1927     v1 = vec_add(v2,v3);
1928     return 0;
1929 }
1930 EOF
1931
1932     # check if our compiler supports braces for vector declarations
1933     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1934 $inc_altivec_h
1935 int main (void) { (vector int) {1}; return 0; }
1936 EOF
1937 fi
1938
1939 # We have to check if pld is a nop and disable it.
1940 enabled arm     && check_asm pld     '"pld [r0]"'
1941 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1942 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1943 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1944 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1945 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1946 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1947 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1948 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1949
1950 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
1951
1952 # ---
1953 # big/little-endian test
1954 check_cc <<EOF || die "endian test failed"
1955 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1956 EOF
1957 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1958
1959 # ---
1960 # check availability of some header files
1961
1962 if check_func dlopen; then
1963     ldl=
1964 elif check_func dlopen -ldl; then
1965     ldl=-ldl
1966 fi
1967
1968 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
1969 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
1970
1971 check_func  fork
1972 check_func  gethrtime
1973 check_func  getrusage
1974 check_func  inet_aton $network_extralibs
1975 check_func  memalign
1976 check_func  mkstemp
1977 check_func  posix_memalign
1978 check_func_headers io.h setmode
1979 check_func_headers lzo/lzo1x.h lzo1x_999_compress
1980 check_func_headers windows.h GetProcessTimes
1981 check_func_headers windows.h VirtualAlloc
1982
1983 check_header conio.h
1984 check_header dlfcn.h
1985 check_header malloc.h
1986 check_header poll.h
1987 check_header sys/mman.h
1988 check_header sys/resource.h
1989 check_header sys/select.h
1990 check_header termios.h
1991 check_header vdpau/vdpau.h
1992 check_header vdpau/vdpau_x11.h
1993 check_header X11/extensions/XvMClib.h
1994
1995 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
1996     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
1997 fi
1998
1999 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2000 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2001
2002 # check for some common methods of building with pthread support
2003 # do this before the optional library checks as some of them require pthreads
2004 if enabled pthreads; then
2005     if check_func pthread_create; then
2006         :
2007     elif check_func pthread_create -pthread; then
2008         add_cflags -pthread
2009         add_extralibs -pthread
2010     elif check_func pthread_create -pthreads; then
2011         add_cflags -pthreads
2012         add_extralibs -pthreads
2013     elif check_func pthread_create -lpthreadGC2; then
2014         add_extralibs -lpthreadGC2
2015     elif ! check_lib pthread.h pthread_create -lpthread; then
2016         die "ERROR: can't find pthreads library"
2017     fi
2018 fi
2019
2020 for thread in $THREADS_LIST; do
2021     if enabled $thread; then
2022         test -n "$thread_type" &&
2023             die "ERROR: Only one thread type must be selected." ||
2024             thread_type="$thread"
2025     fi
2026 done
2027
2028 check_lib math.h sin -lm
2029 check_lib va/va.h vaInitialize -lva
2030
2031 # test for C99 functions in math.h
2032 for func in llrint lrint lrintf round roundf truncf; do
2033     check_exec <<EOF && enable $func || disable $func
2034 #include <math.h>
2035 int main(void) { return ($func(3.999f) > 0)?0:1; }
2036 EOF
2037 done
2038
2039 # these are off by default, so fail if requested and not available
2040 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2041 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Decoder_Interface_init -lamrnb -lm
2042 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
2043 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2044                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2045                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2046 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2047 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2048 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2049 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2050 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2051 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2052 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2053                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2054 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2055 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2056 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2057 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2058                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2059                         die "ERROR: libx264 version must be >= 0.65."; }
2060 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2061 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2062
2063 # libdc1394 check
2064 if enabled libdc1394; then
2065     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2066         enable libdc1394_2; } ||
2067     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2068         enable libdc1394_1; } ||
2069     die "ERROR: No version of libdc1394 found "
2070 fi
2071
2072
2073 _restrict=
2074 for restrict_keyword in restrict __restrict__ __restrict; do
2075     check_cc <<EOF && _restrict=$restrict_keyword && break
2076 void foo(char * $restrict_keyword p);
2077 EOF
2078 done
2079
2080 ##########################################
2081 # SDL check
2082
2083 disable sdl_too_old
2084 disable sdl
2085 SDL_CONFIG="${cross_prefix}sdl-config"
2086 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2087     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2088     temp_cflags $sdl_cflags
2089     temp_extralibs $("${SDL_CONFIG}" --libs)
2090     if check_lib2 SDL.h SDL_Init; then
2091         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2092         if test "$_sdlversion" -lt 121 ; then
2093             enable sdl_too_old
2094         else
2095             enable sdl
2096             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2097 #include <SDL.h>
2098 int main(int argc, char **argv){
2099     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2100     int w = vi->current_w;
2101     return 0;
2102 }
2103 EOF
2104         fi
2105     fi
2106     restore_flags
2107 fi
2108
2109 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2110
2111 ##########################################
2112 # Network check
2113
2114 if enabled network; then
2115     check_type "sys/types.h sys/socket.h" socklen_t
2116     # Prefer arpa/inet.h over winsock2
2117     if check_header arpa/inet.h ; then
2118         check_func closesocket
2119     elif check_header winsock2.h ; then
2120         network_extralibs="-lws2_32"
2121         check_type ws2tcpip.h socklen_t
2122         check_func_headers winsock2.h closesocket
2123     fi
2124 fi
2125
2126 ##########################################
2127 # IPv6 check
2128
2129 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2130 #include <sys/types.h>
2131 #include <sys/socket.h>
2132 #include <netinet/in.h>
2133 #include <netdb.h>
2134 int main(void) {
2135     struct sockaddr_storage saddr;
2136     struct ipv6_mreq mreq6;
2137     getaddrinfo(0,0,0,0);
2138     getnameinfo(0,0,0,0,0,0,0);
2139     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2140 }
2141 EOF
2142
2143 check_header linux/videodev.h
2144 check_header linux/videodev2.h
2145 check_header sys/videoio.h
2146
2147 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2148
2149 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2150 { check_header dev/bktr/ioctl_meteor.h &&
2151   check_header dev/bktr/ioctl_bt848.h; } ||
2152 { check_header machine/ioctl_meteor.h &&
2153   check_header machine/ioctl_bt848.h; } ||
2154 { check_header dev/video/meteor/ioctl_meteor.h &&
2155   check_header dev/video/bktr/ioctl_bt848.h; } ||
2156 check_header dev/ic/bt8xx.h
2157
2158 check_header sys/soundcard.h
2159 check_header soundcard.h
2160
2161 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2162
2163 check_lib2 jack/jack.h jack_client_open -ljack
2164
2165 # deal with the X11 frame grabber
2166 enabled x11grab                         &&
2167 check_header X11/Xlib.h                 &&
2168 check_header X11/extensions/XShm.h      &&
2169 check_func XOpenDisplay -lX11           &&
2170 check_func XShmCreateImage -lX11 -lXext
2171
2172 enabled debug && add_cflags -g"$debuglevel"
2173
2174 # add some useful compiler flags if supported
2175 check_cflags -Wdeclaration-after-statement
2176 check_cflags -Wall
2177 check_cflags -Wno-switch
2178 check_cflags -Wdisabled-optimization
2179 check_cflags -Wpointer-arith
2180 check_cflags -Wredundant-decls
2181 check_cflags -Wno-pointer-sign
2182 check_cflags -Wcast-qual
2183 check_cflags -Wwrite-strings
2184 check_cflags -Wtype-limits
2185 check_cflags -Wundef
2186 enabled extra_warnings && check_cflags -Winline
2187
2188 # add some linker flags
2189 check_ldflags -Wl,--warn-common
2190 check_ldflags -Wl,--as-needed
2191 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'
2192 check_ldflags -Wl,-Bsymbolic
2193
2194 if enabled small; then
2195     check_cflags -Os            # not all compilers support -Os
2196     optimizations="small"
2197 elif enabled optimizations; then
2198     if enabled xlc; then
2199         add_cflags  -O5
2200         add_ldflags -O5
2201     elif enabled ccc; then
2202         add_cflags -fast
2203     else
2204         add_cflags -O3
2205     fi
2206 fi
2207 check_cflags -fno-math-errno
2208 check_cflags -fno-signed-zeros
2209
2210 # add some flags for Intel C Compiler
2211 if enabled icc; then
2212     # Just warnings, no remarks
2213     check_cflags -w1
2214     # -wd: Disable following warnings
2215     # 144, 167, 556: -Wno-pointer-sign
2216     # 10006: ignoring unknown option -fno-signed-zeros
2217     # 10156: ignoring option '-W'; no argument required
2218     check_cflags -wd144,167,556,10006,10156
2219     # 11030: Warning unknown option --as-needed
2220     # 10156: ignoring option '-export'; no argument required
2221     check_ldflags -wd10156,11030
2222     # Allow to compile with optimizations
2223     check_ldflags -march=$cpu
2224     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2225     enable ebp_available
2226 elif enabled ccc; then
2227     # disable some annoying warnings
2228     add_cflags -msg_disable cvtu32to64
2229     add_cflags -msg_disable embedcomment
2230     add_cflags -msg_disable needconstext
2231     add_cflags -msg_disable nomainieee
2232     add_cflags -msg_disable ptrmismatch1
2233     add_cflags -msg_disable unreachcode
2234 fi
2235
2236 # PIC flags for shared library objects where they are needed
2237 if enabled shared; then
2238     # LIBOBJFLAGS may have already been set in the OS configuration
2239     if test -z "$LIBOBJFLAGS" ; then
2240         case "${subarch-$arch}" in
2241             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2242         esac
2243     fi
2244 fi
2245
2246 if enabled gprof; then
2247     add_cflags  -p
2248     add_ldflags -p
2249 fi
2250
2251 # Find out if the .align argument is a power of two or not.
2252 check_asm asmalign_pot '".align 3"'
2253
2254 enabled_any $DECODER_LIST      && enable decoders
2255 enabled_any $ENCODER_LIST      && enable encoders
2256 enabled_any $HWACCEL_LIST      && enable hwaccels
2257 enabled_any $BSF_LIST          && enable bsfs
2258 enabled_any $DEMUXER_LIST      && enable demuxers
2259 enabled_any $MUXER_LIST        && enable muxers
2260 enabled_any $FILTER_LIST       && enable filters
2261 enabled_any $INDEV_LIST        && enable demuxers
2262 enabled_any $OUTDEV_LIST       && enable muxers
2263 enabled_any $PROTOCOL_LIST     && enable protocols
2264
2265 enabled_any $THREADS_LIST      && enable threads
2266
2267 check_deps $CONFIG_LIST       \
2268            $CONFIG_EXTRA      \
2269            $HAVE_LIST         \
2270            $DECODER_LIST      \
2271            $ENCODER_LIST      \
2272            $HWACCEL_LIST      \
2273            $PARSER_LIST       \
2274            $BSF_LIST          \
2275            $DEMUXER_LIST      \
2276            $MUXER_LIST        \
2277            $FILTER_LIST       \
2278            $INDEV_LIST        \
2279            $OUTDEV_LIST       \
2280            $PROTOCOL_LIST     \
2281
2282 echo "install prefix            $prefix"
2283 echo "source path               $source_path"
2284 echo "C compiler                $cc"
2285 echo ".align is power-of-two    $asmalign_pot"
2286 echo "ARCH                      $arch ($cpu)"
2287 if test "$build_suffix" != ""; then
2288     echo "build suffix              $build_suffix"
2289 fi
2290 if test "$extra_version" != ""; then
2291     echo "version string suffix     $extra_version"
2292 fi
2293 echo "big-endian                ${bigendian-no}"
2294 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2295 if enabled x86; then
2296     echo "yasm                      ${yasm-no}"
2297     echo "MMX enabled               ${mmx-no}"
2298     echo "MMX2 enabled              ${mmx2-no}"
2299     echo "3DNow! enabled            ${amd3dnow-no}"
2300     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2301     echo "SSE enabled               ${sse-no}"
2302     echo "SSSE3 enabled             ${ssse3-no}"
2303     echo "CMOV enabled              ${cmov-no}"
2304     echo "CMOV is fast              ${fast_cmov-no}"
2305     echo "EBX available             ${ebx_available-no}"
2306     echo "EBP available             ${ebp_available-no}"
2307     echo "10 operands supported     ${ten_operands-no}"
2308 fi
2309 if enabled arm; then
2310     echo "ARMv5TE enabled           ${armv5te-no}"
2311     echo "ARMv6 enabled             ${armv6-no}"
2312     echo "ARMv6T2 enabled           ${armv6t2-no}"
2313     echo "ARM VFP enabled           ${armvfp-no}"
2314     echo "IWMMXT enabled            ${iwmmxt-no}"
2315     echo "NEON enabled              ${neon-no}"
2316 fi
2317 if enabled mips; then
2318     echo "MMI enabled               ${mmi-no}"
2319 fi
2320 if enabled ppc; then
2321     echo "AltiVec enabled           ${altivec-no}"
2322     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2323     echo "dcbzl available           ${dcbzl-no}"
2324     echo "performance report        ${powerpc_perf-no}"
2325 fi
2326 if enabled sparc; then
2327     echo "VIS enabled               ${vis-no}"
2328 fi
2329 echo "gprof enabled             ${gprof-no}"
2330 echo "debug symbols             ${debug-no}"
2331 echo "strip symbols             ${stripping-no}"
2332 echo "optimizations             ${optimizations-no}"
2333 echo "static                    ${static-no}"
2334 echo "shared                    ${shared-no}"
2335 echo "postprocessing support    ${postproc-no}"
2336 echo "new filter support        ${avfilter-no}"
2337 echo "filters using lavformat   ${avfilter_lavf-no}"
2338 echo "network support           ${network-no}"
2339 if enabled network; then
2340     echo "IPv6 support              ${ipv6-no}"
2341 fi
2342 echo "threading support         ${thread_type-no}"
2343 echo "SDL support               ${sdl-no}"
2344 if enabled sdl_too_old; then
2345     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2346 fi
2347 echo "Sun medialib support      ${mlib-no}"
2348 echo "AVISynth enabled          ${avisynth-no}"
2349 echo "libamr-nb support         ${libamr_nb-no}"
2350 echo "libamr-wb support         ${libamr_wb-no}"
2351 echo "libdc1394 support         ${libdc1394-no}"
2352 echo "libdirac enabled          ${libdirac-no}"
2353 echo "libfaac enabled           ${libfaac-no}"
2354 echo "libfaad enabled           ${libfaad-no}"
2355 echo "libfaad dlopened          ${libfaadbin-no}"
2356 echo "libgsm enabled            ${libgsm-no}"
2357 echo "libmp3lame enabled        ${libmp3lame-no}"
2358 echo "libnut enabled            ${libnut-no}"
2359 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2360 echo "libschroedinger enabled   ${libschroedinger-no}"
2361 echo "libspeex enabled          ${libspeex-no}"
2362 echo "libtheora enabled         ${libtheora-no}"
2363 echo "libvorbis enabled         ${libvorbis-no}"
2364 echo "libx264 enabled           ${libx264-no}"
2365 echo "libxvid enabled           ${libxvid-no}"
2366 echo "zlib enabled              ${zlib-no}"
2367 echo "bzlib enabled             ${bzlib-no}"
2368 echo
2369
2370 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2371     echo "Enabled ${type}s:"
2372     eval list=\$$(toupper $type)_LIST
2373     for part in $list; do
2374         enabled $part && echo ${part%_*}
2375     done | sort | pr -3 -t
2376     echo
2377 done
2378
2379 license="LGPL"
2380 if enabled nonfree; then
2381     license="unredistributable"
2382 elif enabled gpl; then
2383     license="GPL"
2384 fi
2385
2386 echo "License: $license"
2387
2388 echo "Creating config.mak and config.h..."
2389
2390 echo "# Automatically generated by configure - do not modify!" > config.mak
2391 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2392 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2393 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2394 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2395 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2396
2397 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2398 echo "prefix=$prefix" >> config.mak
2399 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2400 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2401 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2402 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2403 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2404 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2405 echo "SRC_PATH=\"$source_path\"" >> config.mak
2406 echo "SRC_PATH_BARE=$source_path" >> config.mak
2407 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2408 echo "CC=$cc" >> config.mak
2409 echo "AS=$as" >> config.mak
2410 echo "YASM=$yasmexe" >> config.mak
2411 echo "AR=$ar" >> config.mak
2412 echo "RANLIB=$ranlib" >> config.mak
2413 echo "LN_S=$ln_s" >> config.mak
2414 enabled stripping &&
2415     echo "STRIP=$strip" >> config.mak ||
2416     echo "STRIP=echo ignoring strip" >> config.mak
2417
2418 echo "OPTFLAGS=$CFLAGS" >> config.mak
2419 echo "LDFLAGS=$LDFLAGS" >> config.mak
2420 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2421 echo "SHFLAGS=$SHFLAGS" >> config.mak
2422 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2423 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2424 echo "BUILD_STATIC=$static" >> config.mak
2425 echo "BUILDSUF=$build_suffix" >> config.mak
2426 echo "FULLNAME=$FULLNAME" >> config.mak
2427 echo "LIBPREF=$LIBPREF" >> config.mak
2428 echo "LIBSUF=$LIBSUF" >> config.mak
2429 echo "LIBNAME=$LIBNAME" >> config.mak
2430 echo "SLIBPREF=$SLIBPREF" >> config.mak
2431 echo "SLIBSUF=$SLIBSUF" >> config.mak
2432 echo "EXESUF=$EXESUF" >> config.mak
2433 echo "EXTRA_VERSION=$extra_version" >> config.mak
2434 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2435 echo "HOSTCC=$host_cc" >> config.mak
2436 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2437 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2438 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2439 echo "HOSTLIBS=$host_libs" >> config.mak
2440 echo "TARGET_EXEC=$target_exec" >> config.mak
2441 echo "TARGET_PATH=$target_path" >> config.mak
2442
2443 if enabled bigendian; then
2444     echo "WORDS_BIGENDIAN=yes" >> config.mak
2445     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2446 fi
2447
2448 if enabled sdl; then
2449     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2450     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2451 fi
2452 if enabled texi2html; then
2453     echo "BUILD_DOC=yes" >> config.mak
2454 fi
2455
2456 get_version(){
2457     name=$1
2458     file=$source_path/$2
2459     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2460     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2461     lcname=$(tolower $name)
2462     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2463     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2464 }
2465
2466 get_version LIBSWSCALE  libswscale/swscale.h
2467 get_version LIBPOSTPROC libpostproc/postprocess.h
2468 get_version LIBAVCODEC  libavcodec/avcodec.h
2469 get_version LIBAVDEVICE libavdevice/avdevice.h
2470 get_version LIBAVFORMAT libavformat/avformat.h
2471 get_version LIBAVUTIL   libavutil/avutil.h
2472 get_version LIBAVFILTER libavfilter/avfilter.h
2473
2474 if enabled shared; then
2475     echo "BUILD_SHARED=yes" >> config.mak
2476     echo "PIC=-fPIC -DPIC" >> config.mak
2477     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2478     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2479     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2480     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2481     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2482     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2483     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2484     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2485 fi
2486 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2487 echo "EXTRALIBS=$extralibs" >> config.mak
2488
2489 echo "ARCH=$arch" >> config.mak
2490
2491 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2492 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2493 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2494                                       $CONFIG_EXTRA      \
2495                                       $DECODER_LIST      \
2496                                       $ENCODER_LIST      \
2497                                       $HWACCEL_LIST      \
2498                                       $PARSER_LIST       \
2499                                       $BSF_LIST          \
2500                                       $DEMUXER_LIST      \
2501                                       $MUXER_LIST        \
2502                                       $FILTER_LIST       \
2503                                       $PROTOCOL_LIST     \
2504                                       $INDEV_LIST        \
2505                                       $OUTDEV_LIST       \
2506
2507 echo "#define restrict $_restrict" >> $TMPH
2508
2509 if enabled small; then
2510     echo "#define av_always_inline"  >> $TMPH
2511 fi
2512
2513
2514 # Apparently it's not possible to portably echo a backslash.
2515 enabled asmalign_pot &&
2516     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2517     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2518
2519 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2520
2521 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2522
2523 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2524 cmp -s $TMPH config.h &&
2525     echo "config.h is unchanged" ||
2526     mv -f $TMPH config.h
2527
2528 # build tree in object directory if source path is different from current one
2529 if enabled source_path_used; then
2530     DIRS="\
2531         doc               \
2532         libavcodec        \
2533         libavcodec/alpha  \
2534         libavcodec/arm    \
2535         libavcodec/bfin   \
2536         libavcodec/mlib   \
2537         libavcodec/ppc    \
2538         libavcodec/sh4    \
2539         libavcodec/sparc  \
2540         libavcodec/x86    \
2541         libavdevice       \
2542         libavfilter       \
2543         libavformat       \
2544         libavutil         \
2545         libpostproc       \
2546         libswscale        \
2547         libswscale/bfin   \
2548         libswscale/mlib   \
2549         libswscale/ppc    \
2550         libswscale/sparc  \
2551         libswscale/x86    \
2552         tests             \
2553         tools             \
2554         "
2555     FILES="\
2556         Makefile             \
2557         common.mak           \
2558         subdir.mak           \
2559         doc/texi2pod.pl      \
2560         libavcodec/Makefile  \
2561         libavdevice/Makefile \
2562         libavfilter/Makefile \
2563         libavformat/Makefile \
2564         libavutil/Makefile   \
2565         libpostproc/Makefile \
2566         libswscale/Makefile  \
2567         "
2568     for dir in $DIRS ; do
2569         mkdir -p $dir
2570     done
2571     for f in $FILES ; do
2572         $ln_s "$source_path/$f" $f
2573     done
2574 fi
2575
2576
2577 # build pkg-config files
2578
2579 pkgconfig_generate(){
2580 name=$1
2581 shortname=${name#lib}${build_suffix}
2582 comment=$2
2583 version=$3
2584 libs=$4
2585 requires=$5
2586 cat <<EOF > $name/$name.pc
2587 prefix=$prefix
2588 exec_prefix=\${prefix}
2589 libdir=$libdir
2590 includedir=$incdir
2591
2592 Name: $name
2593 Description: $comment
2594 Version: $version
2595 Requires: $(disabled shared && echo $requires)
2596 Requires.private: $(enabled shared && echo $requires)
2597 Conflicts:
2598 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2599 Libs.private: $(enabled shared && echo $libs)
2600 Cflags: -I\${includedir}
2601 EOF
2602 cat <<EOF > $name/$name-uninstalled.pc
2603 prefix=
2604 exec_prefix=
2605 libdir=\${pcfiledir}
2606 includedir=${source_path}
2607
2608 Name: $name
2609 Description: $comment
2610 Version: $version
2611 Requires: $requires
2612 Conflicts:
2613 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2614 Cflags: -I\${includedir}
2615 EOF
2616 }
2617
2618 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2619 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2620 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2621 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2622 enabled avfilter &&
2623     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2624 enabled postproc &&
2625     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2626 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"