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 "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
  68   echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
  69   echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
  70   echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
  71   echo "  --enable-static          build static libraries [yes]"
  72   echo "  --disable-static         do not build static libraries [no]"
  73   echo "  --enable-shared          build shared libraries [no]"
  74   echo "  --disable-shared         do not build shared libraries [yes]"
  75   echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  76   echo "                           and binaries will be under GPL [no]"
  77   echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  78   echo "                           and binaries will be unredistributable [no]"
  79   echo "  --enable-postproc        enable GPLed postprocessing support [no]"
  80   echo "  --enable-swscale         enable GPLed software scaler support [no]"
  81   echo "  --enable-avfilter        video filter support (replaces vhook) [no]"
  82   echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  83   echo "  --disable-vhook          disable video hooking support"
  84   echo "  --enable-beosthreads     use BeOS threads [no]"
  85   echo "  --enable-os2threads      use OS/2 threads [no]"
  86   echo "  --enable-pthreads        use pthreads [no]"
  87   echo "  --enable-w32threads      use Win32 threads [no]"
  88   echo "  --enable-x11grab         enable X11 grabbing [no]"
  89   echo
  90   echo "External library support:"
  91   echo "  --enable-mlib            enable Sun medialib [no]"
  92   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
  93   echo "  --enable-bzlib           enable bzlib [no]"
  94   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec"
  95   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec"
  96   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
  97   echo "                           and libraw1394 [no]"
  98   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
  99   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 100   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 101   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 102   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 103   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 104   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 105   echo "                           native (de)muxer exists [no]"
 106   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 107   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 108   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 109   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 110   echo "                           native implementation exists [no]"
 111   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 112   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 113   echo "                           native MPEG-4/Xvid encoder exists [no]"
 114   echo "  --enable-zlib            enable zlib [no]"
 115   echo ""
 116   echo "Advanced options (experts only):"
 117   echo "  --source-path=PATH       path to source code [$source_path]"
 118   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 119   echo "  --enable-cross-compile   assume a cross-compiler is used"
 120   echo "  --target-os=OS           compiler targets OS [$target_os]"
 121   echo "  --cc=CC                  use C compiler CC [$cc]"
 122   echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
 123   echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
 124   echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
 125   echo "  --extra-version=STRING   version string suffix []"
 126   echo "  --build-suffix=SUFFIX    library name suffix []"
 127   echo "  --arch=ARCH              select architecture [$arch]"
 128   echo "  --cpu=CPU                select the minimum required CPU (affects"
 129   echo "                           instruction selection, may crash on older CPUs)"
 130   echo "  --enable-powerpc-perf    enable performance report on PPC"
 131   echo "                           (requires enabling PMC)"
 132   echo "  --disable-altivec        disable AltiVec optimizations"
 133   echo "  --disable-mmx            disable MMX optimizations"
 134   echo "  --disable-mmx2           disable MMX2 optimizations"
 135   echo "  --disable-ssse3          disable SSSE3 optimizations"
 136   echo "  --disable-armv5te        disable armv5te optimizations"
 137   echo "  --disable-armv6          disable armv6 optimizations"
 138   echo "  --disable-armvfp         disable ARM VFP optimizations"
 139   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 140   echo "  --disable-mmi            disable MMI optimizations"
 141   echo "  --disable-neon           disable neon optimizations"
 142   echo "  --disable-vis            disable VIS optimizations"
 143   echo "  --disable-network        disable network support [no]"
 144   echo "  --disable-ipv6           disable IPv6 support [no]"
 145   echo "  --disable-mpegaudio-hp   faster (but less accurate)"
 146   echo "                           MPEG audio decoding [no]"
 147   echo "  --disable-fft            disable FFT code"
 148   echo "  --disable-golomb         disable Golomb code"
 149   echo "  --disable-mdct           disable MDCT code"
 150   echo "  --enable-gray            enable full grayscale support (slower color)"
 151   echo "  --disable-ffmpeg         disable ffmpeg build"
 152   echo "  --disable-ffplay         disable ffplay build"
 153   echo "  --disable-ffserver       disable ffserver build"
 154   echo "  --enable-small           optimize for size instead of speed"
 155   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 156   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 157   echo "  --enable-beos-netserver  enable BeOS netserver"
 158   echo "  --disable-encoder=NAME   disable encoder NAME"
 159   echo "  --enable-encoder=NAME    enable encoder NAME"
 160   echo "  --disable-encoders       disable all encoders"
 161   echo "  --disable-decoder=NAME   disable decoder NAME"
 162   echo "  --enable-decoder=NAME    enable decoder NAME"
 163   echo "  --disable-decoders       disable all decoders"
 164   echo "  --disable-muxer=NAME     disable muxer NAME"
 165   echo "  --enable-muxer=NAME      enable muxer NAME"
 166   echo "  --disable-muxers         disable all muxers"
 167   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 168   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 169   echo "  --disable-demuxers       disable all demuxers"
 170   echo "  --enable-parser=NAME     enable parser NAME"
 171   echo "  --disable-parser=NAME    disable parser NAME"
 172   echo "  --disable-parsers        disable all parsers"
 173   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 174   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 175   echo "  --disable-bsfs           disable all bitstream filters"
 176   echo "  --enable-protocol=NAME   enable protocol NAME"
 177   echo "  --disable-protocol=NAME  disable protocol NAME"
 178   echo "  --disable-protocols      disable all protocols"
 179   echo "  --disable-indevs         disable input devices"
 180   echo "  --disable-outdevs        disable output devices"
 181   echo "  --disable-devices        disable all devices"
 182   echo "  --enable-filter=NAME     enable filter NAME"
 183   echo "  --disable-filter=NAME    disable filter NAME"
 184   echo "  --disable-filters        disable all filters"
 185   echo "  --list-decoders          show all available decoders"
 186   echo "  --list-encoders          show all available encoders"
 187   echo "  --list-muxers            show all available muxers"
 188   echo "  --list-demuxers          show all available demuxers"
 189   echo "  --list-parsers           show all available parsers"
 190   echo "  --list-protocols         show all available protocols"
 191   echo "  --list-bsfs              show all available bitstream filters"
 192   echo "  --list-indevs            show all available input devices"
 193   echo "  --list-outdevs           show all available output devices"
 194   echo "  --list-filters           show all available filters"
 195   echo
 196   echo "Developer options (useful when working on FFmpeg itself):"
 197   echo "  --disable-debug          disable debugging symbols"
 198   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 199   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 200   echo "  --disable-optimizations  disable compiler optimizations"
 201   echo "  --enable-extra-warnings  enable more compiler warnings"
 202   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 203   echo ""
 204   echo "NOTE: Object files are built at the place where configure is launched."
 205   exit 0
 206 }
 207
 208 log(){
 209     echo "$@" >> $logfile
 210 }
 211
 212 log_file(){
 213     log BEGIN $1
 214     pr -n -t $1 >> $logfile
 215     log END $1
 216 }
 217
 218 echolog(){
 219     log "$@"
 220     echo "$@"
 221 }
 222
 223 die(){
 224     echolog "$@"
 225     cat <<EOF
 226 If you think configure made a mistake, make sure you are using the latest
 227 version from SVN.  If the latest version fails, report the problem to the
 228 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 229 EOF
 230     if disabled logging; then
 231         cat <<EOF
 232 Rerun configure with logging enabled (do not use --disable-logging), and
 233 include the log this produces with your report.
 234 EOF
 235     else
 236 cat <<EOF
 237 Include the log file "$logfile" produced by configure as this will help
 238 solving the problem.
 239 EOF
 240     fi
 241     rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
 242     exit 1
 243 }
 244
 245 # Avoid locale weirdness, besides we really just want to translate ASCII.
 246 toupper(){
 247     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 248 }
 249
 250 tolower(){
 251     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 252 }
 253
 254 set_all(){
 255     value=$1
 256     shift
 257     for var in $*; do
 258         eval $var=$value
 259     done
 260 }
 261
 262 set_weak(){
 263     value=$1
 264     shift
 265     for var; do
 266         eval : \${$var:=$value}
 267     done
 268 }
 269
 270 pushvar(){
 271     for var in $*; do
 272         eval level=\${${var}_level:=0}
 273         eval ${var}_${level}="\$$var"
 274         eval ${var}_level=$(($level+1))
 275     done
 276 }
 277
 278 popvar(){
 279     for var in $*; do
 280         eval level=\${${var}_level:-0}
 281         test $level = 0 && continue
 282         eval level=$(($level-1))
 283         eval $var="\${${var}_${level}}"
 284         eval ${var}_level=$level
 285         eval unset ${var}_${level}
 286     done
 287 }
 288
 289 enable(){
 290     set_all yes $*
 291 }
 292
 293 disable(){
 294     set_all no $*
 295 }
 296
 297 enable_weak(){
 298     set_weak yes $*
 299 }
 300
 301 disable_weak(){
 302     set_weak no $*
 303 }
 304
 305 do_enable_deep(){
 306     for var; do
 307         enabled $var && continue
 308         eval sel="\$${var}_select"
 309         eval sgs="\$${var}_suggest"
 310         pushvar var sgs
 311         enable_deep $sel
 312         popvar sgs
 313         enable_deep_weak $sgs
 314         popvar var
 315     done
 316 }
 317
 318 enable_deep(){
 319     do_enable_deep $*
 320     enable $*
 321 }
 322
 323 enable_deep_weak(){
 324     do_enable_deep $*
 325     enable_weak $*
 326 }
 327
 328 enabled(){
 329     test "${1#!}" = "$1" && op== || op=!=
 330     eval test "x\$${1#!}" $op "xyes"
 331 }
 332
 333 disabled(){
 334     test "${1#!}" = "$1" && op== || op=!=
 335     eval test "x\$${1#!}" $op "xno"
 336 }
 337
 338 enabled_all(){
 339     for opt; do
 340         enabled $opt || return 1
 341     done
 342 }
 343
 344 disabled_all(){
 345     for opt; do
 346         disabled $opt || return 1
 347     done
 348 }
 349
 350 enabled_any(){
 351     for opt; do
 352         enabled $opt && return 0
 353     done
 354 }
 355
 356 disabled_any(){
 357     for opt; do
 358         disabled $opt && return 0
 359     done
 360     return 1
 361 }
 362
 363 set_default(){
 364     for opt; do
 365         eval test -z "\$$opt" && eval $opt=\$${opt}_default
 366     done
 367 }
 368
 369 is_in(){
 370     value=$1
 371     shift
 372     for var in $*; do
 373         [ $var = $value ] && return 0
 374     done
 375     return 1
 376 }
 377
 378 check_deps(){
 379     for cfg; do
 380         cfg="${cfg#!}"
 381         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 382         disabled ${cfg}_checking && continue
 383         enable ${cfg}_checking
 384
 385         eval dep_all="\$${cfg}_deps"
 386         eval dep_any="\$${cfg}_deps_any"
 387         eval dep_sel="\$${cfg}_select"
 388         eval dep_sgs="\$${cfg}_suggest"
 389
 390         pushvar cfg dep_all dep_any dep_sel dep_sgs
 391         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 392         popvar cfg dep_all dep_any dep_sel dep_sgs
 393
 394         enabled_all  $dep_all || disable $cfg
 395         enabled_any  $dep_any || disable $cfg
 396         disabled_any $dep_sel && disable $cfg
 397
 398         if enabled $cfg; then
 399             eval dep_extralibs="\$${cfg}_extralibs"
 400             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 401             enable_deep $dep_sel
 402             enable_deep_weak $dep_sgs
 403         fi
 404
 405         disable ${cfg}_checking
 406     done
 407 }
 408
 409 print_config(){
 410     pfx=$1
 411     header=$2
 412     makefile=$3
 413     shift 3
 414     for cfg; do
 415         ucname="`toupper $cfg`"
 416         if enabled $cfg; then
 417             echo "#define ${pfx}${ucname} 1" >> $header
 418             echo "#define ENABLE_${ucname} 1" >> $header
 419             echo "${pfx}${ucname}=yes" >> $makefile
 420         else
 421             echo "#define ENABLE_${ucname} 0" >> $header
 422         fi
 423     done
 424 }
 425
 426 flags_saved(){
 427     (: ${SAVE_CFLAGS?}) 2> /dev/null
 428 }
 429
 430 save_flags(){
 431     flags_saved && return
 432     SAVE_CFLAGS="$CFLAGS"
 433     SAVE_LDFLAGS="$LDFLAGS"
 434     SAVE_extralibs="$extralibs"
 435 }
 436
 437 restore_flags(){
 438     flags_saved || return
 439     CFLAGS="$SAVE_CFLAGS"
 440     LDFLAGS="$SAVE_LDFLAGS"
 441     extralibs="$SAVE_extralibs"
 442     unset SAVE_CFLAGS
 443     unset SAVE_LDFLAGS
 444     unset SAVE_extralibs
 445 }
 446
 447 temp_cflags(){
 448     save_flags
 449     CFLAGS="$CFLAGS $*"
 450 }
 451
 452 temp_ldflags(){
 453     save_flags
 454     LDFLAGS="$LDFLAGS $*"
 455 }
 456
 457 temp_extralibs(){
 458     save_flags
 459     extralibs="$extralibs $*"
 460 }
 461
 462 append(){
 463     var=$1
 464     shift
 465     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 466     eval "$var=\"\$$var $*\""
 467 }
 468
 469 add_cflags(){
 470     append CFLAGS "$@"
 471 }
 472
 473 add_ldflags(){
 474     append LDFLAGS "$@"
 475 }
 476
 477 add_extralibs(){
 478     append extralibs "$@"
 479 }
 480
 481 check_cmd(){
 482     log "$@"
 483     "$@" >> $logfile 2>&1
 484 }
 485
 486 check_cc(){
 487     log check_cc "$@"
 488     cat > $TMPC
 489     log_file $TMPC
 490     check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
 491 }
 492
 493 check_cpp(){
 494     log check_cpp "$@"
 495     cat > $TMPC
 496     log_file $TMPC
 497     check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
 498 }
 499
 500 check_asm(){
 501     log check_asm "$@"
 502     name="$1"
 503     asm="$2"
 504     shift 2
 505     check_cc "$@" <<EOF && enable $name || disable $name
 506 int foo(void){ __asm__ volatile($asm); }
 507 EOF
 508 }
 509
 510 check_yasm(){
 511     log check_yasm "$@"
 512     echo "$1" > $TMPS
 513     log_file $TMPS
 514     shift 1
 515     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 516 }
 517
 518 check_ld(){
 519     log check_ld "$@"
 520     check_cc || return
 521     flags=''
 522     libs=''
 523     for f; do
 524         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 525     done
 526     check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 527 }
 528
 529 check_cflags(){
 530     log check_cflags "$@"
 531     check_cc "$@" <<EOF && add_cflags "$@"
 532 int x;
 533 EOF
 534 }
 535
 536 check_ldflags(){
 537     log check_ldflags "$@"
 538     check_ld "$@" <<EOF && add_ldflags "$@"
 539 int main(void){ return 0; }
 540 EOF
 541 }
 542
 543 check_header(){
 544     log check_header "$@"
 545     header=$1
 546     shift
 547     var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 548     disable $var
 549     check_cpp "$@" <<EOF && enable $var
 550 #include <$header>
 551 int x;
 552 EOF
 553 }
 554
 555 check_func(){
 556     log check_func "$@"
 557     func=$1
 558     shift
 559     disable $func
 560     check_ld "$@" <<EOF && enable $func
 561 extern int $func();
 562 int main(void){ $func(); }
 563 EOF
 564 }
 565
 566 check_func_headers(){
 567     log check_func_headers "$@"
 568     headers=$1
 569     func=$2
 570     shift 2
 571     disable $func
 572     incs=""
 573     for hdr in $headers; do
 574         incs="$incs
 575 #include <$hdr>"
 576     done
 577     check_ld "$@" <<EOF && enable $func
 578 $incs
 579 int main(int argc, char **argv){
 580     (void) $func;
 581     return 0;
 582 }
 583 EOF
 584 }
 585
 586 check_cpp_condition(){
 587     log check_cpp_condition "$@"
 588     header=$1
 589     condition=$2
 590     check_cpp <<EOF
 591 #include <$header>
 592 #if !($condition)
 593 #error "unsatisfied condition: $condition"
 594 #endif
 595 EOF
 596 }
 597
 598 check_lib(){
 599     log check_lib "$@"
 600     header="$1"
 601     func="$2"
 602     shift 2
 603     temp_extralibs "$@"
 604     check_header $header && check_func $func && add_extralibs "$@"
 605     err=$?
 606     restore_flags
 607     return $err
 608 }
 609
 610 check_lib2(){
 611     log check_lib2 "$@"
 612     headers="$1"
 613     func="$2"
 614     shift 2
 615     temp_extralibs "$@"
 616     check_func_headers "$headers" $func && add_extralibs "$@"
 617     err=$?
 618     restore_flags
 619     return $err
 620 }
 621
 622 check_exec(){
 623     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 624 }
 625
 626 check_exec_crash(){
 627     code=`cat`
 628
 629     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 630     # are safe but may not be available everywhere.  Thus we use
 631     # raise(SIGTERM) instead.  The check is run in a subshell so we
 632     # can redirect the "Terminated" message from the shell.  SIGBUS
 633     # is not defined by standard C so it is used conditionally.
 634
 635     (check_exec "$@") >> $logfile 2>&1 <<EOF
 636 #include <signal.h>
 637 static void sighandler(int sig){
 638     raise(SIGTERM);
 639 }
 640 int main(void){
 641     signal(SIGILL, sighandler);
 642     signal(SIGFPE, sighandler);
 643     signal(SIGSEGV, sighandler);
 644 #ifdef SIGBUS
 645     signal(SIGBUS, sighandler);
 646 #endif
 647     { $code }
 648 }
 649 EOF
 650 }
 651
 652 check_type(){
 653     log check_type "$@"
 654     headers=$1
 655     type=$2
 656     shift 2
 657     disable $type
 658     incs=""
 659     for hdr in $headers; do
 660         incs="$incs
 661 #include <$hdr>"
 662     done
 663     check_cc "$@" <<EOF && enable $type
 664 $incs
 665 $type v;
 666 EOF
 667 }
 668
 669 require(){
 670     name="$1"
 671     header="$2"
 672     func="$3"
 673     shift 3
 674     check_lib $header $func "$@" || die "ERROR: $name not found"
 675 }
 676
 677 require2(){
 678     name="$1"
 679     headers="$2"
 680     func="$3"
 681     shift 3
 682     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 683 }
 684
 685 check_foo_config(){
 686     cfg=$1
 687     pkg=$2
 688     header=$3
 689     func=$4
 690     shift 4
 691     disable $cfg
 692     check_cmd ${pkg}-config --version
 693     err=$?
 694     if test "$err" = 0; then
 695         temp_cflags `${pkg}-config --cflags`
 696         temp_extralibs `${pkg}-config --libs`
 697         check_lib "$@" $header $func && enable $cfg
 698     fi
 699     return $err
 700 }
 701
 702 apply(){
 703     file=$1
 704     shift
 705     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 706 }
 707
 708 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 709 # system-dependent things.
 710
 711 COMPONENT_LIST="
 712     bsfs
 713     decoders
 714     demuxers
 715     encoders
 716     filters
 717     indevs
 718     muxers
 719     outdevs
 720     parsers
 721     protocols
 722 "
 723
 724 CONFIG_LIST="
 725     $COMPONENT_LIST
 726     avfilter
 727     avfilter_lavf
 728     avisynth
 729     beos_netserver
 730     bzlib
 731     ffmpeg
 732     ffplay
 733     ffserver
 734     fft
 735     golomb
 736     gpl
 737     gprof
 738     gray
 739     hardcoded_tables
 740     ipv6
 741     libamr_nb
 742     libamr_wb
 743     libdc1394
 744     libdirac
 745     libfaac
 746     libfaad
 747     libfaadbin
 748     libgsm
 749     libmp3lame
 750     libnut
 751     libschroedinger
 752     libspeex
 753     libtheora
 754     libvorbis
 755     libx264
 756     libxvid
 757     mdct
 758     memalign_hack
 759     mlib
 760     mpegaudio_hp
 761     network
 762     nonfree
 763     postproc
 764     powerpc_perf
 765     small
 766     swscale
 767     vhook
 768     x11grab
 769     zlib
 770 "
 771
 772 THREADS_LIST='
 773     beosthreads
 774     os2threads
 775     pthreads
 776     w32threads
 777 '
 778
 779 ARCH_LIST='
 780     alpha
 781     armv4l
 782     bfin
 783     ia64
 784     m68k
 785     mips
 786     parisc
 787     powerpc
 788     s390
 789     sh4
 790     sparc
 791     sparc64
 792     x86
 793     x86_32
 794     x86_64
 795 '
 796
 797 ARCH_EXT_LIST='
 798     altivec
 799     armv5te
 800     armv6
 801     armvfp
 802     iwmmxt
 803     mmi
 804     mmx
 805     mmx2
 806     neon
 807     ssse3
 808     vis
 809 '
 810
 811 HAVE_LIST="
 812     $ARCH_EXT_LIST
 813     $THREADS_LIST
 814     altivec_h
 815     arpa_inet_h
 816     bswap
 817     closesocket
 818     cmov
 819     conio_h
 820     dcbzl
 821     dev_bktr_ioctl_bt848_h
 822     dev_bktr_ioctl_meteor_h
 823     dev_ic_bt8xx_h
 824     dev_video_meteor_ioctl_meteor_h
 825     dev_video_bktr_ioctl_bt848_h
 826     dlfcn_h
 827     dlopen
 828     dos_paths
 829     ebp_available
 830     ebx_available
 831     fast_64bit
 832     fast_cmov
 833     fast_unaligned
 834     fork
 835     freetype2
 836     gethrtime
 837     GetProcessTimes
 838     getrusage
 839     imlib2
 840     inet_aton
 841     inline_asm
 842     libdc1394_1
 843     libdc1394_2
 844     llrint
 845     lrint
 846     lrintf
 847     machine_ioctl_bt848_h
 848     machine_ioctl_meteor_h
 849     malloc_h
 850     memalign
 851     mkstemp
 852     pld
 853     ppc64
 854     round
 855     roundf
 856     sdl
 857     sdl_video_size
 858     socklen_t
 859     soundcard_h
 860     poll_h
 861     sys_mman_h
 862     sys_resource_h
 863     sys_select_h
 864     sys_soundcard_h
 865     sys_videoio_h
 866     termios_h
 867     threads
 868     winsock2_h
 869     yasm
 870 "
 871
 872 # options emitted with CONFIG_ prefix but not available on command line
 873 CONFIG_EXTRA="
 874     fft_mmx
 875 "
 876
 877 CMDLINE_SELECT="
 878     $ARCH_EXT_LIST
 879     $CONFIG_LIST
 880     $THREADS_LIST
 881     cross_compile
 882     debug
 883     extra_warnings
 884     logging
 885     optimizations
 886     shared
 887     static
 888     stripping
 889 "
 890
 891 PATHS_LIST='
 892     bindir
 893     incdir
 894     libdir
 895     mandir
 896     prefix
 897     shlibdir
 898 '
 899
 900 CMDLINE_SET="
 901     $PATHS_LIST
 902     arch
 903     build_suffix
 904     cc
 905     cpu
 906     cross_prefix
 907     extra_version
 908     logfile
 909     source_path
 910     target_os
 911 "
 912
 913 # code dependency declarations
 914
 915 # architecture extensions
 916 altivec_deps="powerpc"
 917 armv5te_deps="armv4l"
 918 armv6_deps="armv4l"
 919 armvfp_deps="armv4l"
 920 iwmmxt_deps="armv4l"
 921 mmi_deps="mips"
 922 mmx_deps="x86"
 923 mmx2_deps="x86 mmx"
 924 neon_deps="armv4l"
 925 ssse3_deps="x86"
 926 vis_deps="sparc"
 927
 928 # common features
 929 fft_suggest="fft_mmx"
 930 fft_mmx_deps="mmx yasm"
 931
 932 # decoders / encoders
 933 aac_decoder_select="fft mdct"
 934 ac3_decoder_deps="gpl"
 935 ac3_decoder_select="fft mdct"
 936 atrac3_decoder_select="fft mdct"
 937 cavs_decoder_select="golomb"
 938 cook_decoder_select="fft mdct"
 939 cscd_decoder_suggest="zlib"
 940 dca_decoder_select="fft mdct"
 941 dxa_decoder_select="zlib"
 942 eac3_decoder_deps="gpl"
 943 eac3_decoder_select="fft mdct"
 944 ffv1_decoder_select="golomb"
 945 flac_decoder_select="golomb"
 946 flac_encoder_select="golomb"
 947 flashsv_decoder_select="zlib"
 948 flashsv_encoder_select="zlib"
 949 h264_decoder_select="golomb"
 950 imc_decoder_select="fft mdct"
 951 jpegls_decoder_select="golomb"
 952 jpegls_encoder_select="golomb"
 953 loco_decoder_select="golomb"
 954 mpeg_xvmc_decoder_deps="xvmc"
 955 nellymoser_decoder_select="fft mdct"
 956 nellymoser_encoder_select="fft mdct"
 957 png_decoder_select="zlib"
 958 png_encoder_select="zlib"
 959 qdm2_decoder_select="fft mdct"
 960 shorten_decoder_select="golomb"
 961 sonic_decoder_select="golomb"
 962 sonic_encoder_select="golomb"
 963 sonic_ls_encoder_select="golomb"
 964 svq3_decoder_select="golomb"
 965 svq3_decoder_suggest="zlib"
 966 tiff_decoder_suggest="zlib"
 967 tiff_encoder_suggest="zlib"
 968 tscc_decoder_select="zlib"
 969 vorbis_decoder_select="fft mdct"
 970 vorbis_encoder_select="fft mdct"
 971 wmav1_decoder_select="fft mdct"
 972 wmav1_encoder_select="fft mdct"
 973 wmav2_decoder_select="fft mdct"
 974 wmav2_encoder_select="fft mdct"
 975 zlib_decoder_select="zlib"
 976 zlib_encoder_select="zlib"
 977 zmbv_decoder_select="zlib"
 978 zmbv_encoder_select="zlib"
 979
 980 # external libraries
 981 libamr_nb_decoder_deps="libamr_nb"
 982 libamr_nb_encoder_deps="libamr_nb"
 983 libamr_wb_decoder_deps="libamr_wb"
 984 libamr_wb_encoder_deps="libamr_wb"
 985 libdirac_decoder_deps="libdirac !libschroedinger"
 986 libdirac_encoder_deps="libdirac"
 987 libfaac_encoder_deps="libfaac"
 988 libfaad_decoder_deps="libfaad"
 989 libfaadbin_decoder_extralibs='$ldl'
 990 libgsm_decoder_deps="libgsm"
 991 libgsm_encoder_deps="libgsm"
 992 libgsm_ms_decoder_deps="libgsm"
 993 libgsm_ms_encoder_deps="libgsm"
 994 libmp3lame_encoder_deps="libmp3lame"
 995 libschroedinger_decoder_deps="libschroedinger"
 996 libschroedinger_encoder_deps="libschroedinger"
 997 libspeex_decoder_deps="libspeex"
 998 libtheora_encoder_deps="libtheora"
 999 libvorbis_encoder_deps="libvorbis"
1000 libx264_encoder_deps="libx264"
1001 libxvid_encoder_deps="libxvid"
1002 mpeg4aac_decoder_deps="libfaad"
1003
1004 # demuxers / muxers
1005 ac3_demuxer_deps="ac3_parser"
1006 audio_beos_demuxer_deps="audio_beos"
1007 audio_beos_demuxer_extralibs="-lmedia -lbe"
1008 audio_beos_muxer_deps="audio_beos"
1009 audio_beos_muxer_extralibs="-lmedia -lbe"
1010 avisynth_demuxer_deps="avisynth"
1011 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1012 dirac_demuxer_deps="dirac_parser"
1013 dv1394_demuxer_deps="dv1394 dv_demuxer"
1014 libdc1394_demuxer_deps="libdc1394"
1015 libnut_demuxer_deps="libnut"
1016 libnut_muxer_deps="libnut"
1017 matroska_demuxer_suggest="zlib bzlib"
1018 mov_demuxer_suggest="zlib"
1019 mp3_demuxer_deps="mpegaudio_parser"
1020 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1021 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1022 redir_demuxer_deps="network"
1023 rtp_muxer_deps="network rtp_protocol"
1024 rtsp_demuxer_deps="sdp_demuxer"
1025 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1026 v4l_demuxer_deps="linux_videodev_h"
1027 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1028 vfwcap_demuxer_deps="capCreateCaptureWindow"
1029 vfwcap_demuxer_extralibs="-lvfw32"
1030 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1031 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1032
1033 # protocols
1034 http_protocol_deps="network"
1035 rtp_protocol_deps="udp_protocol"
1036 tcp_protocol_deps="network"
1037 udp_protocol_deps="network"
1038
1039 # filters
1040 movie_filter_deps="avfilter_lavf"
1041
1042 # programs
1043 ffplay_deps="sdl"
1044 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1045 ffserver_extralibs='$ldl'
1046 vhook_extralibs='$ldl'
1047
1048
1049 # default parameters
1050
1051 logfile="config.err"
1052
1053 # installation paths
1054 prefix_default="/usr/local"
1055 bindir_default='${prefix}/bin'
1056 incdir_default='${prefix}/include'
1057 libdir_default='${prefix}/lib'
1058 mandir_default='${prefix}/share/man'
1059 shlibdir_default="$libdir_default"
1060
1061 # toolchain
1062 cc_default="gcc"
1063 yasmexe="yasm"
1064 ar="ar"
1065 nm="nm"
1066 ranlib="ranlib"
1067 strip="strip"
1068 asmalign_pot="unknown"
1069 ln_s="ln -sf"
1070 objformat="elf"
1071
1072 # machine
1073 arch=`uname -m`
1074 cpu="generic"
1075
1076 # OS
1077 target_os=$(tolower $(uname -s))
1078
1079 # configurable options
1080 enable debug
1081 enable ffmpeg
1082 enable ffplay
1083 enable ffserver
1084 enable ipv6
1085 enable mpegaudio_hp
1086 enable network
1087 enable optimizations
1088 enable protocols
1089 enable static
1090 enable stripping
1091 vhook="default"
1092
1093 # build settings
1094 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1095 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1096 VHOOKSHFLAGS='$(SHFLAGS)'
1097 FFSERVERLDFLAGS=-Wl,-E
1098 LIBPREF="lib"
1099 LIBSUF=".a"
1100 FULLNAME='$(NAME)$(BUILDSUF)'
1101 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1102 SLIBPREF="lib"
1103 SLIBSUF=".so"
1104 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1105 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1106 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1107 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1108
1109 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1110 # full relative path for objects in subdirectories for non-recursive Make.
1111 DEPEND_CMD='$(CC) $(CFLAGS) -MM -MG $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," -e "s,\\([[:space:]]\\)\\(version\\.h\\),\\1\$$(BUILD_ROOT_REL)/\\2,"'
1112
1113 # find source path
1114 source_path="`dirname \"$0\"`"
1115 enable source_path_used
1116 if test -z "$source_path" -o "$source_path" = "." ; then
1117     source_path="`pwd`"
1118     disable source_path_used
1119 else
1120     source_path="`cd \"$source_path\"; pwd`"
1121     echo "$source_path" | grep -q '[[:blank:]]' &&
1122         die "Out of tree builds are impossible with whitespace in source path."
1123 fi
1124
1125 FFMPEG_CONFIGURATION="$@"
1126
1127 find_things(){
1128     thing=$1
1129     pattern=$2
1130     file=$source_path/$3
1131     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1132 }
1133
1134 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1135 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1136 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1137 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1138 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1139 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1140 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1141 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1142 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1143 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1144
1145 enable $ARCH_EXT_LIST \
1146        $DECODER_LIST \
1147        $ENCODER_LIST \
1148        $PARSER_LIST \
1149        $BSF_LIST \
1150        $DEMUXER_LIST \
1151        $MUXER_LIST \
1152        $FILTER_LIST \
1153        $PROTOCOL_LIST \
1154        $INDEV_LIST \
1155        $OUTDEV_LIST \
1156
1157 die_unknown(){
1158     echo "Unknown option \"$1\"."
1159     echo "See $0 --help for available options."
1160     exit 1
1161 }
1162
1163 show_list() {
1164     suffix=_$1
1165     shift
1166     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1167     exit 0
1168 }
1169
1170 for opt do
1171     optval="${opt#*=}"
1172     case "$opt" in
1173     --extra-cflags=*) add_cflags "$optval"
1174     ;;
1175     --extra-ldflags=*) add_ldflags "$optval"
1176     ;;
1177     --extra-libs=*) add_extralibs "$optval"
1178     ;;
1179     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1180     ;;
1181     --enable-debug=*) debuglevel="$optval"
1182     ;;
1183     --enable-*=*|--disable-*=*)
1184     eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
1185     case "$thing" in
1186         encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1187         *) die_unknown "$opt" ;;
1188     esac
1189     ;;
1190     --enable-?*|--disable-?*)
1191     eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
1192     if is_in $option $COMPONENT_LIST; then
1193         eval $action \$$(toupper ${option%s})_LIST
1194     elif is_in $option $CMDLINE_SELECT; then
1195         $action $option
1196     else
1197         die_unknown $opt
1198     fi
1199     ;;
1200     --list-*)
1201         NAME="${opt#--list-}"
1202         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1203         NAME=${NAME%s}
1204         eval show_list $NAME \$$(toupper $NAME)_LIST
1205     ;;
1206     --help|-h) show_help
1207     ;;
1208     *)
1209     optname="${opt%%=*}"
1210     optname="${optname#--}"
1211     optname=$(echo "$optname" | sed 's/-/_/g')
1212     is_in $optname $CMDLINE_SET || die_unknown $opt
1213     eval $optname='$optval'
1214     ;;
1215     esac
1216 done
1217
1218 disabled logging && logfile=/dev/null
1219
1220 echo "# $0 $@" > $logfile
1221 set >> $logfile
1222
1223 cc_default="${cross_prefix}${cc_default}"
1224 yasmexe="${cross_prefix}${yasmexe}"
1225 ar="${cross_prefix}${ar}"
1226 nm="${cross_prefix}${nm}"
1227 ranlib="${cross_prefix}${ranlib}"
1228 strip="${cross_prefix}${strip}"
1229
1230 set_default cc
1231
1232 # set temporary file name
1233 if test ! -z "$TMPDIR" ; then
1234     TMPDIR1="${TMPDIR}"
1235 elif test ! -z "$TEMPDIR" ; then
1236     TMPDIR1="${TEMPDIR}"
1237 else
1238     TMPDIR1="/tmp"
1239 fi
1240
1241 TMPC="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
1242 TMPE="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}${EXESUF}"
1243 TMPH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
1244 TMPO="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
1245 TMPS="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
1246 TMPSH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.sh"
1247
1248 check_cflags -std=c99
1249
1250 case "$arch" in
1251     i386|i486|i586|i686|i86pc|BePC)
1252         arch="x86_32"
1253         enable fast_unaligned
1254     ;;
1255     x86_64|amd64)
1256         arch="x86_32"
1257         enable cmov
1258         enable fast_cmov
1259         enable fast_unaligned
1260         check_cc <<EOF && enable fast_64bit && arch="x86_64"
1261         int test[sizeof(char*) - 7];
1262 EOF
1263     ;;
1264     # armv4l is a subset of armv[567]*l
1265     arm|armv[4567]*l)
1266         arch="armv4l"
1267     ;;
1268     alpha)
1269         arch="alpha"
1270         enable fast_64bit
1271     ;;
1272     "Power Macintosh"|ppc|powerpc)
1273         arch="powerpc"
1274         enable fast_unaligned
1275     ;;
1276     ppc64)
1277         arch="powerpc"
1278         enable fast_64bit
1279         enable fast_unaligned
1280     ;;
1281     mips|mipsel|IP*)
1282         arch="mips"
1283     ;;
1284     sun4u|sparc64)
1285         arch="sparc64"
1286         enable fast_64bit
1287     ;;
1288     sparc)
1289         arch="sparc"
1290     ;;
1291     sh4)
1292         arch="sh4"
1293     ;;
1294     parisc)
1295         arch="parisc"
1296     ;;
1297     parisc64)
1298         arch="parisc"
1299         enable fast_64bit
1300     ;;
1301     s390|s390x)
1302         arch="s390"
1303     ;;
1304     m68k)
1305         arch="m68k"
1306     ;;
1307     ia64)
1308         arch="ia64"
1309         enable fast_64bit
1310     ;;
1311     bfin)
1312         arch="bfin"
1313     ;;
1314     *)
1315         arch="unknown"
1316     ;;
1317 esac
1318
1319 enable $arch
1320 enabled_any x86_32 x86_64 && enable x86
1321 enabled     sparc64       && enable sparc
1322
1323 # OS specific
1324 case $target_os in
1325     beos|haiku|zeta)
1326         prefix_default="$HOME/config"
1327         # helps building libavcodec
1328         add_cflags "-DPIC -fomit-frame-pointer"
1329         # 3 gcc releases known for BeOS, each with ugly bugs
1330         gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"
1331         case "$gcc_version" in
1332           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1333             disable mmx
1334             ;;
1335           *20010315*) echo "BeBits gcc"
1336             add_cflags "-fno-expensive-optimizations"
1337             ;;
1338         esac
1339         SHFLAGS=-nostart
1340         # enable BeOS things
1341         enable audio_beos
1342         # no need for libm, but the inet stuff
1343         # Check for BONE
1344         # XXX: actually should check for NOT net_server
1345         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1346             network_extralibs="-lbind -lsocket"
1347         else
1348             enable beos_netserver
1349             network_extralibs="-lnet"
1350         fi ;;
1351     sunos)
1352         FFSERVERLDFLAGS=""
1353         SHFLAGS='-shared -Wl,-h,$$(@F)'
1354         network_extralibs="-lsocket -lnsl"
1355         ;;
1356     netbsd)
1357         oss_demuxer_extralibs="-lossaudio"
1358         oss_muxer_extralibs="-lossaudio"
1359         ;;
1360     openbsd)
1361         disable need_memalign
1362         LIBOBJFLAGS='$(PIC)'
1363         SHFLAGS='-shared'
1364         SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF).$(LIBVERSION)'
1365         SLIBNAME_WITH_VERSION='$(SLIBNAME)'
1366         SLIBNAME_WITH_MAJOR='$(SLIBNAME)'
1367         oss_demuxer_extralibs="-lossaudio"
1368         oss_muxer_extralibs="-lossaudio"
1369         ;;
1370     freebsd)
1371         disable need_memalign
1372         ;;
1373     bsd/os)
1374         osextralibs="-lpoll -lgnugetopt"
1375         strip="strip -d"
1376         ;;
1377     darwin)
1378         disable need_memalign
1379         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1380         VHOOKSHFLAGS='-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(SHLIBDIR)/vhook/$$(@F)'
1381         strip="strip -x"
1382         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1383         SLIBSUF=".dylib"
1384         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1385         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1386         FFSERVERLDFLAGS=-Wl,-bind_at_load
1387         objformat="macho"
1388         enabled x86_64 && objformat="macho64"
1389         ;;
1390     mingw32*)
1391         target_os=mingw32
1392         LIBTARGET=i386
1393         if test $arch = x86_64; then
1394             disable need_memalign
1395             LIBTARGET=x64
1396         fi
1397         shlibdir_default="$bindir_default"
1398         VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
1399         VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
1400         if enabled swscale; then
1401             VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
1402             VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
1403         fi
1404         disable ffserver
1405         SLIBPREF=""
1406         SLIBSUF=".dll"
1407         EXESUF=".exe"
1408         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1409         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1410         SLIB_EXTRA_CMD='-lib /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1411         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1412             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1413         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1414         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1415         objformat="win32"
1416         enable dos_paths
1417         check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1418             die "ERROR: MinGW runtime version must be >= 3.15."
1419         enabled_any avisynth vfwcap_demuxer &&
1420             { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 12)" ||
1421               die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.12 or later."; }
1422         ;;
1423     cygwin*)
1424         target_os=cygwin
1425         shlibdir_default="$bindir_default"
1426         VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
1427         VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
1428         if enabled swscale; then
1429             VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
1430             VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
1431         fi
1432         EXESUF=".exe"
1433         SLIBPREF="cyg"
1434         SLIBSUF=".dll"
1435         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1436         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1437         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1438         objformat="win32"
1439         enable dos_paths
1440         ;;
1441     *-dos|freedos|opendos)
1442         disable ffplay ffserver vhook
1443         disable $INDEV_LIST $OUTDEV_LIST
1444         network_extralibs="-lsocket"
1445         EXESUF=".exe"
1446         objformat="win32"
1447         enable dos_paths
1448         ;;
1449     linux)
1450         enable dv1394
1451         ;;
1452     irix*)
1453         target_os=irix
1454         ranlib="echo ignoring ranlib"
1455         ;;
1456     os/2*)
1457         strip="lxlite"
1458         ln_s="cp -f"
1459         EXESUF=".exe"
1460         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1461         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1462         FFSERVERLDFLAGS=""
1463         LIBSUF="_s.a"
1464         SLIBPREF=""
1465         SLIBSUF=".dll"
1466         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1467         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1468         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1469           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1470           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1471           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1472           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1473           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1474         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1475           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1476         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1477         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1478         disable vhook
1479         enable dos_paths
1480         ;;
1481     interix)
1482         disable vhook
1483         ;;
1484
1485     *)
1486         target_os="${target_os}-UNKNOWN"
1487         ;;
1488 esac
1489
1490 set_default $PATHS_LIST
1491
1492 add_extralibs $osextralibs
1493
1494 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1495 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1496
1497 test -n "$cross_prefix" && enable cross_compile
1498
1499 # we need to build at least one lib type
1500 if ! enabled_any static shared; then
1501     cat <<EOF
1502 At least one library type must be built.
1503 Specify --enable-static to build the static libraries or --enable-shared to
1504 build the shared libraries as well. To only build the shared libraries specify
1505 --disable-static in addition to --enable-shared.
1506 EOF
1507     exit 1;
1508 fi
1509
1510 disabled static && LIBNAME=""
1511
1512 if enabled_any libfaad libfaadbin ; then
1513     if check_header faad.h; then
1514         check_cc <<EOF
1515 #include <faad.h>
1516 #ifndef FAAD2_VERSION
1517 ok faad1
1518 #endif
1519 int main(void) { return 0; }
1520 EOF
1521         test $? = 0 && enable libfaad2
1522     else
1523         die "FAAD test failed."
1524     fi
1525 fi
1526
1527
1528 if ! enabled gpl; then
1529     die_gpl_disabled(){
1530         name=$1
1531         shift
1532         enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1533     }
1534     die_gpl_disabled "The Postprocessing code" postproc
1535     die_gpl_disabled "libx264"                 libx264
1536     die_gpl_disabled "libxvidcore"             libxvid
1537     die_gpl_disabled "FAAD2"                   libfaad2
1538     die_gpl_disabled "The X11 grabber"         x11grab
1539     die_gpl_disabled "The software scaler"     swscale
1540 fi
1541
1542 if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
1543     die "libamr is nonfree and --enable-nonfree is not specified."
1544 fi
1545
1546 check_deps $ARCH_EXT_LIST
1547
1548 test -z "$need_memalign" && need_memalign="$mmx"
1549
1550 #Darwin CC versions
1551 if test $target_os = darwin; then
1552     if $cc -v 2>&1 | grep -q xlc; then
1553         add_cflags "-qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto"
1554     else
1555         add_cflags "-pipe"
1556         check_cflags "-force_cpusubtype_ALL"
1557         check_cflags "-Wno-sign-compare"
1558         enabled shared || check_cflags -mdynamic-no-pic
1559     fi
1560 fi
1561
1562 disabled optimizations || check_cflags -fomit-frame-pointer
1563
1564 # Add processor-specific flags
1565 if test $cpu != "generic"; then
1566     warn_altivec(){
1567         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1568     }
1569     case $cpu in
1570         601|ppc601|PowerPC601)
1571             add_cflags "-mcpu=601"
1572             warn_altivec enabled PPC601
1573         ;;
1574         603*|ppc603*|PowerPC603*)
1575             add_cflags "-mcpu=603"
1576             warn_altivec enabled PPC603
1577         ;;
1578         604*|ppc604*|PowerPC604*)
1579             add_cflags "-mcpu=604"
1580             warn_altivec enabled PPC604
1581         ;;
1582         G3|g3|75*|ppc75*|PowerPC75*)
1583             add_cflags "-mcpu=750 -mpowerpc-gfxopt"
1584             warn_altivec enabled PPC75x
1585         ;;
1586         G4|g4|745*|ppc745*|PowerPC745*)
1587             add_cflags "-mcpu=7450 -mpowerpc-gfxopt"
1588             warn_altivec disabled PPC745x
1589         ;;
1590         74*|ppc74*|PowerPC74*)
1591             add_cflags "-mcpu=7400 -mpowerpc-gfxopt"
1592             warn_altivec disabled PPC74xx
1593         ;;
1594         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1595             add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1596             warn_altivec disabled PPC970
1597             enable ppc64
1598         ;;
1599         Cell|CELL|cell)
1600             add_cflags "-mcpu=cell"
1601             warn_altivec disabled Cell
1602             enable ppc64
1603         ;;
1604         # targets that do NOT support conditional mov (cmov)
1605         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1606             add_cflags "-march=$cpu"
1607             disable cmov
1608         ;;
1609         # targets that do support conditional mov (cmov)
1610         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1611             add_cflags "-march=$cpu"
1612             enable cmov
1613             enable fast_cmov
1614         ;;
1615         # targets that do support conditional mov but on which it's slow
1616         pentium4|pentium4m|prescott|nocona)
1617             add_cflags "-march=$cpu"
1618             enable cmov
1619             disable fast_cmov
1620         ;;
1621         sparc64)
1622             add_cflags "-mcpu=v9"
1623         ;;
1624         arm11*|cortex*)
1625             add_cflags "-mcpu=$cpu"
1626             enable fast_unaligned
1627         ;;
1628         armv*)
1629             add_cflags "-march=$cpu"
1630         ;;
1631         arm*)
1632             add_cflags "-mcpu=$cpu"
1633         ;;
1634         *)
1635             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1636         ;;
1637     esac
1638 fi
1639
1640 # make sure we can execute files in $TMPDIR
1641 cat > $TMPSH 2>> $logfile <<EOF
1642 #! /bin/sh
1643 EOF
1644 chmod +x $TMPSH >> $logfile 2>&1
1645 if ! $TMPSH >> $logfile 2>&1; then
1646     cat <<EOF
1647 Unable to create and execute files in $TMPDIR1.  Set the TMPDIR environment
1648 variable to another directory and make sure that $TMPDIR1 is not mounted
1649 noexec.
1650 EOF
1651     die "Sanity test failed."
1652 fi
1653 rm $TMPSH
1654
1655 # compiler sanity check
1656 check_exec <<EOF
1657 int main(void){ return 0; }
1658 EOF
1659 if test "$?" != 0; then
1660     echo "$cc is unable to create an executable file."
1661     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1662         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1663         echo "Only do this if you know what cross compiling means."
1664     fi
1665     die "C compiler test failed."
1666 fi
1667
1668 check_cc <<EOF || die "Symbol mangling check failed."
1669 int ff_extern;
1670 EOF
1671 sym=$($nm -P -g $TMPO | grep ff_extern)
1672 extern_prefix=${sym%%ff_extern*}
1673
1674 check_asm inline_asm '""'
1675
1676 if enabled x86; then
1677     # check whether EBP is available on x86
1678     # As 'i' is stored on the stack, this program will crash
1679     # if the base pointer is used to access it because the
1680     # base pointer is cleared in the inline assembly code.
1681     check_exec_crash <<EOF && enable ebp_available
1682     volatile int i=0;
1683     __asm__ volatile (
1684         "xorl %%ebp, %%ebp"
1685     ::: "%ebp");
1686     return i;
1687 EOF
1688
1689     # check wether EBX is available on x86
1690     check_asm ebx_available '"":::"%ebx"'
1691
1692     # check whether binutils is new enough to compile SSSE3/MMX2
1693     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1694     enabled mmx2  && check_asm mmx2  '"movss %xmm0, %xmm0"'
1695
1696     check_asm bswap '"bswap %%eax" ::: "%eax"'
1697
1698     YASMFLAGS="-f $objformat -DARCH_$(toupper $arch)"
1699     enabled     x86_64        && append YASMFLAGS "-m amd64"
1700     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1701     case "$objformat" in
1702         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1703         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1704         *)                    append YASMFLAGS "-DPREFIX"  ;;
1705     esac
1706     check_yasm "pabsw xmm0, xmm0" && enable yasm
1707 fi
1708
1709 # check for assembler specific support
1710
1711 if test $arch = "powerpc"; then
1712     check_asm dcbzl '"dcbzl 0, 1"'
1713 fi
1714
1715 # check for SIMD availability
1716
1717 # AltiVec flags: The FSF version of GCC differs from the Apple version
1718 if enabled altivec; then
1719     check_cflags -maltivec -mabi=altivec &&
1720         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1721         check_cflags -faltivec
1722
1723     # check if our compiler supports Motorola AltiVec C API
1724     check_cc <<EOF || disable altivec
1725 $inc_altivec_h
1726 int main(void) {
1727     vector signed int v1, v2, v3;
1728     v1 = vec_add(v2,v3);
1729     return 0;
1730 }
1731 EOF
1732
1733     # check if our compiler supports braces for vector declarations
1734     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1735 $inc_altivec_h
1736 int main (void) { (vector int) {1}; return 0; }
1737 EOF
1738 fi
1739
1740 # We have to check if pld is a nop and disable it.
1741 enabled armv4l  && check_asm pld     '"pld [r0]"'
1742 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1743 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1744 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1745 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1746 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1747 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1748 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1749
1750 enabled vis && add_cflags "-mcpu=ultrasparc -mtune=ultrasparc"
1751
1752 # ---
1753 # big/little-endian test
1754 check_cc <<EOF || die "endian test failed"
1755 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1756 EOF
1757 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1758
1759 # ---
1760 # check availability of some header files
1761
1762 if check_func dlopen; then
1763     ldl=
1764 elif check_func dlopen -ldl; then
1765     ldl=-ldl
1766 fi
1767
1768 check_func  fork
1769 check_func  gethrtime
1770 check_func  getrusage
1771 check_func  inet_aton $network_extralibs
1772 check_func  memalign
1773 check_func  mkstemp
1774 check_func_headers windows.h GetProcessTimes
1775
1776 check_header conio.h
1777 check_header dlfcn.h
1778 check_header malloc.h
1779 check_header poll.h
1780 check_header sys/mman.h
1781 check_header sys/resource.h
1782 check_header sys/select.h
1783 check_header termios.h
1784
1785 if ! enabled_any memalign memalign_hack && enabled need_memalign ; then
1786     die "Error, no memalign() but SSE enabled, disable it or use --enable-memalign-hack."
1787 fi
1788
1789 disabled  zlib || check_lib  zlib.h      zlibVersion -lz   || disable  zlib
1790 disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
1791
1792 # check for some common methods of building with pthread support
1793 # do this before the optional library checks as some of them require pthreads
1794 if enabled pthreads; then
1795     if check_func pthread_create; then
1796         :
1797     elif check_func pthread_create -pthread; then
1798         add_cflags -pthread
1799         add_extralibs -pthread
1800     elif check_func pthread_create -pthreads; then
1801         add_cflags -pthreads
1802         add_extralibs -pthreads
1803     elif check_func pthread_create -lpthreadGC2; then
1804         add_extralibs -lpthreadGC2
1805     elif ! check_lib pthread.h pthread_create -lpthread; then
1806         die "ERROR: can't find pthreads library"
1807     fi
1808 fi
1809
1810 for thread in $THREADS_LIST; do
1811     if enabled $thread; then
1812         test -n "$thread_type" &&
1813             die "ERROR: Only one thread type must be selected." ||
1814             thread_type="$thread"
1815     fi
1816 done
1817
1818 check_lib math.h sin -lm
1819
1820 # test for C99 functions in math.h
1821 for func in llrint lrint lrintf round roundf; do
1822     check_exec <<EOF && enable $func || disable $func
1823 #include <math.h>
1824 int main(void) { return ($func(3.999f) > 0)?0:1; }
1825 EOF
1826 done
1827
1828 # these are off by default, so fail if requested and not available
1829 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
1830 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
1831 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
1832 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
1833                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
1834                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
1835 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
1836 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
1837 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
1838 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
1839 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
1840 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
1841                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
1842 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
1843 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
1844 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
1845 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
1846                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
1847                         die "ERROR: libx264 version must be >= 0.65."; }
1848 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
1849 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
1850
1851 # libdc1394 check
1852 if enabled libdc1394; then
1853     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
1854         enable libdc1394_2; } ||
1855     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
1856         enable libdc1394_1; } ||
1857     die "ERROR: No version of libdc1394 found "
1858 fi
1859
1860
1861 _restrict=
1862 for restrict_keyword in restrict __restrict__ __restrict; do
1863     check_cc <<EOF && _restrict=$restrict_keyword && break
1864 void foo(char * $restrict_keyword p);
1865 EOF
1866 done
1867
1868 test "$vhook" = "default" && vhook="$dlopen"
1869
1870 if test "$target_os" = cygwin -o "$target_os" = mingw32 && enabled_all static vhook ; then
1871     disable vhook
1872     echo
1873     echo "At the moment vhooks don't work on Cygwin or MinGW static builds."
1874     echo "Patches welcome."
1875     echo
1876 fi
1877
1878 if enabled vhook; then
1879     check_ldflags -rdynamic
1880     check_ldflags -export-dynamic
1881 fi
1882
1883 check_foo_config imlib2 imlib2 Imlib2.h imlib_load_font
1884 check_foo_config freetype2 freetype ft2build.h FT_Init_FreeType
1885
1886 ##########################################
1887 # SDL check
1888
1889 disable sdl_too_old
1890 disable sdl
1891 SDL_CONFIG="${cross_prefix}sdl-config"
1892 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
1893     sdl_cflags=`"${SDL_CONFIG}" --cflags`
1894     temp_cflags $sdl_cflags
1895     temp_extralibs `"${SDL_CONFIG}" --libs`
1896     if check_lib2 SDL.h SDL_Init; then
1897         _sdlversion=`"${SDL_CONFIG}" --version | sed 's/[^0-9]//g'`
1898         if test "$_sdlversion" -lt 121 ; then
1899             enable sdl_too_old
1900         else
1901             enable sdl
1902             check_cc $sdl_cflags <<EOF && enable sdl_video_size
1903 #include <SDL.h>
1904 int main(int argc, char **argv){
1905     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
1906     int w = vi->current_w;
1907     return 0;
1908 }
1909 EOF
1910         fi
1911     fi
1912     restore_flags
1913 fi
1914
1915 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
1916
1917 ##########################################
1918 # Network check
1919
1920 if enabled network; then
1921     check_type sys/socket.h socklen_t
1922     # Prefer arpa/inet.h over winsock2
1923     if check_header arpa/inet.h ; then
1924         check_func closesocket
1925     elif check_header winsock2.h ; then
1926         network_extralibs="-lws2_32"
1927         check_type ws2tcpip.h socklen_t
1928         check_func_headers winsock2.h closesocket
1929     fi
1930 fi
1931
1932 ##########################################
1933 # IPv6 check
1934
1935 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
1936 #include <sys/types.h>
1937 #include <sys/socket.h>
1938 #include <netinet/in.h>
1939 #include <netdb.h>
1940 int main(void) {
1941     struct sockaddr_storage saddr;
1942     struct ipv6_mreq mreq6;
1943     getaddrinfo(0,0,0,0);
1944     getnameinfo(0,0,0,0,0,0,0);
1945     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
1946 }
1947 EOF
1948
1949 check_header linux/videodev.h
1950 check_header linux/videodev2.h
1951 check_header sys/videoio.h
1952
1953 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
1954
1955 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
1956 { check_header dev/bktr/ioctl_meteor.h &&
1957   check_header dev/bktr/ioctl_bt848.h; } ||
1958 { check_header machine/ioctl_meteor.h &&
1959   check_header machine/ioctl_bt848.h; } ||
1960 { check_header dev/video/meteor/ioctl_meteor.h &&
1961   check_header dev/video/bktr/ioctl_bt848.h; } ||
1962 check_header dev/ic/bt8xx.h
1963
1964 check_header sys/soundcard.h
1965 check_header soundcard.h
1966
1967 # deal with the X11 frame grabber
1968 enabled x11grab                         &&
1969 check_header X11/Xlib.h                 &&
1970 check_header X11/extensions/XShm.h      &&
1971 check_func XOpenDisplay -lX11           &&
1972 check_func XShmCreateImage -lX11 -lXext
1973
1974 enabled debug && add_cflags -g"$debuglevel"
1975
1976 # add some useful compiler flags if supported
1977 check_cflags -Wdeclaration-after-statement
1978 check_cflags -Wall
1979 check_cflags -Wno-switch
1980 check_cflags -Wdisabled-optimization
1981 check_cflags -Wpointer-arith
1982 check_cflags -Wredundant-decls
1983 check_cflags -Wno-pointer-sign
1984 check_cflags -Wcast-qual
1985 check_cflags -Wwrite-strings
1986 check_cflags -Wtype-limits
1987 enabled extra_warnings && check_cflags -Winline
1988
1989 # add some linker flags
1990 check_ldflags -Wl,--warn-common
1991 check_ldflags -Wl,--as-needed
1992 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'
1993 check_ldflags -Wl,-Bsymbolic
1994
1995 if enabled small; then
1996     check_cflags -Os            # not all compilers support -Os
1997     optimizations="small"
1998 elif enabled optimizations; then
1999     if $cc -v 2>&1 | grep -q xlc; then
2000         add_cflags  "-O5"
2001         add_ldflags "-O5"
2002     else
2003         add_cflags "-O3"
2004     fi
2005 fi
2006 check_cflags -fno-math-errno
2007 check_cflags -fno-signed-zeros
2008
2009 # add some flags for Intel C Compiler
2010 if $cc --version 2> /dev/null | grep -q Intel; then
2011   # Just warnings, no remarks
2012   check_cflags -w1
2013   # -wd: Disable following warnings
2014   # 144, 167, 556: -Wno-pointer-sign
2015   # 10006: ignoring unknown option -fno-signed-zeros
2016   # 10156: ignoring option '-W'; no argument required
2017   check_cflags -wd144,167,556,10006,10156
2018   # 11030: Warning unknown option --as-needed
2019   # 10156: ignoring option '-export'; no argument required
2020   check_ldflags -wd10156,11030
2021   # Allow to compile with optimizations
2022   check_ldflags -march=$cpu
2023 fi
2024
2025 # PIC flags for shared library objects where they are needed
2026 if enabled shared; then
2027     # LIBOBJFLAGS may have already been set in the OS configuration
2028     if test -z "$LIBOBJFLAGS" ; then
2029         case "$arch" in
2030             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2031         esac
2032     fi
2033 fi
2034
2035 if enabled gprof; then
2036     add_cflags  "-p"
2037     add_ldflags "-p"
2038 fi
2039
2040 VHOOKCFLAGS="-fPIC"
2041
2042 # Find out if the .align argument is a power of two or not.
2043 if test $asmalign_pot = "unknown"; then
2044     disable asmalign_pot
2045     echo '__asm__ (".align 3");' | check_cc && enable asmalign_pot
2046 fi
2047
2048 enabled_any $DECODER_LIST      && enable decoders
2049 enabled_any $ENCODER_LIST      && enable encoders
2050 enabled_any $BSF_LIST          && enable bsfs
2051 enabled_any $DEMUXER_LIST      && enable demuxers
2052 enabled_any $MUXER_LIST        && enable muxers
2053 enabled_any $FILTER_LIST       && enable filters
2054 enabled_any $INDEV_LIST        && enable demuxers
2055 enabled_any $OUTDEV_LIST       && enable muxers
2056 enabled_any $PROTOCOL_LIST     && enable protocols
2057
2058 enabled_any $THREADS_LIST      && enable threads
2059
2060 check_deps $CONFIG_LIST       \
2061            $CONFIG_EXTRA      \
2062            $HAVE_LIST         \
2063            $DECODER_LIST      \
2064            $ENCODER_LIST      \
2065            $PARSER_LIST       \
2066            $BSF_LIST          \
2067            $DEMUXER_LIST      \
2068            $MUXER_LIST        \
2069            $FILTER_LIST       \
2070            $INDEV_LIST        \
2071            $OUTDEV_LIST       \
2072            $PROTOCOL_LIST     \
2073
2074 enabled libdc1394 && append pkg_requires "libraw1394"
2075 enabled libdirac  && append pkg_requires "dirac"
2076 enabled libtheora && append pkg_requires "theora"
2077 enabled libvorbis && append pkg_requires "vorbisenc"
2078
2079 echo "install prefix            $prefix"
2080 echo "source path               $source_path"
2081 echo "C compiler                $cc"
2082 echo ".align is power-of-two    $asmalign_pot"
2083 echo "ARCH                      $arch ($cpu)"
2084 if test "$build_suffix" != ""; then
2085     echo "build suffix              $build_suffix"
2086 fi
2087 if test "$extra_version" != ""; then
2088     echo "version string suffix     $extra_version"
2089 fi
2090 echo "big-endian                ${bigendian-no}"
2091 if test $arch = "x86_32" -o $arch = "x86_64"; then
2092     echo "yasm                      ${yasm-no}"
2093     echo "MMX enabled               ${mmx-no}"
2094     echo "CMOV enabled              ${cmov-no}"
2095     echo "CMOV is fast              ${fast_cmov-no}"
2096     echo "EBX available             ${ebx_available-no}"
2097     echo "EBP available             ${ebp_available-no}"
2098 fi
2099 if test $arch = "armv4l"; then
2100     echo "ARMv5TE enabled           ${armv5te-no}"
2101     echo "ARMv6 enabled             ${armv6-no}"
2102     echo "ARM VFP enabled           ${armvfp-no}"
2103     echo "IWMMXT enabled            ${iwmmxt-no}"
2104     echo "NEON enabled              ${neon-no}"
2105 fi
2106 if test $arch = "mips"; then
2107     echo "MMI enabled               ${mmi-no}"
2108 fi
2109 if test $arch = "powerpc"; then
2110     echo "AltiVec enabled           ${altivec-no}"
2111     echo "dcbzl available           ${dcbzl-no}"
2112 fi
2113 echo "gprof enabled             ${gprof-no}"
2114 echo "debug symbols             ${debug-no}"
2115 echo "strip symbols             ${stripping-no}"
2116 echo "optimizations             ${optimizations-no}"
2117 echo "static                    ${static-no}"
2118 echo "shared                    ${shared-no}"
2119 echo "postprocessing support    ${postproc-no}"
2120 echo "software scaler enabled   ${swscale-no}"
2121 echo "new filter support        ${avfilter-no}"
2122 echo "filters using lavformat   ${avfilter_lavf-no}"
2123 echo "video hooking             ${vhook-no}"
2124 if enabled vhook; then
2125     echo "Imlib2 support            ${imlib2-no}"
2126     echo "FreeType support          ${freetype2-no}"
2127 fi
2128 echo "network support           ${network-no}"
2129 if enabled network; then
2130     echo "IPv6 support              ${ipv6-no}"
2131 fi
2132 echo "threading support         ${thread_type-no}"
2133 echo "SDL support               ${sdl-no}"
2134 if enabled sdl_too_old; then
2135     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2136 fi
2137 echo "Sun medialib support      ${mlib-no}"
2138 echo "AVISynth enabled          ${avisynth-no}"
2139 echo "libamr-nb support         ${libamr_nb-no}"
2140 echo "libamr-wb support         ${libamr_wb-no}"
2141 echo "libdc1394 support         ${libdc1394-no}"
2142 echo "libdirac enabled          ${libdirac-no}"
2143 echo "libfaac enabled           ${libfaac-no}"
2144 echo "libfaad enabled           ${libfaad-no}"
2145 echo "libfaad dlopened          ${libfaadbin-no}"
2146 echo "libgsm enabled            ${libgsm-no}"
2147 echo "libmp3lame enabled        ${libmp3lame-no}"
2148 echo "libnut enabled            ${libnut-no}"
2149 echo "libschroedinger enabled   ${libschroedinger-no}"
2150 echo "libspeex enabled          ${libspeex-no}"
2151 echo "libtheora enabled         ${libtheora-no}"
2152 echo "libvorbis enabled         ${libvorbis-no}"
2153 echo "libx264 enabled           ${libx264-no}"
2154 echo "libxvid enabled           ${libxvid-no}"
2155 echo "zlib enabled              ${zlib-no}"
2156 echo "bzlib enabled             ${bzlib-no}"
2157 echo
2158
2159 for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
2160     echo "Enabled ${type}s:"
2161     eval list=\$$(toupper $type)_LIST
2162     for part in $list; do
2163         enabled $part && echo ${part%_*}
2164     done | sort | pr -3 -t
2165     echo
2166 done
2167
2168 license="LGPL"
2169 if enabled nonfree; then
2170     license="unredistributable"
2171 elif enabled gpl; then
2172     license="GPL"
2173 fi
2174
2175 echo "License: $license"
2176
2177 echo "Creating config.mak and config.h..."
2178
2179 echo "# Automatically generated by configure - do not modify!" > config.mak
2180 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2181 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2182 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2183 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2184
2185 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2186 echo "prefix=$prefix" >> config.mak
2187 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2188 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2189 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2190 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2191 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2192 echo "CC=$cc" >> config.mak
2193 echo "YASM=$yasmexe" >> config.mak
2194 echo "AR=$ar" >> config.mak
2195 echo "RANLIB=$ranlib" >> config.mak
2196 echo "LN_S=$ln_s" >> config.mak
2197 enabled stripping &&
2198     echo "STRIP=$strip" >> config.mak ||
2199     echo "STRIP=echo ignoring strip" >> config.mak
2200
2201 echo "OPTFLAGS=$CFLAGS" >> config.mak
2202 echo "VHOOKCFLAGS=$VHOOKCFLAGS" >> config.mak
2203 echo "LDFLAGS=$LDFLAGS" >> config.mak
2204 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2205 echo "SHFLAGS=$SHFLAGS" >> config.mak
2206 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2207 echo "VHOOKSHFLAGS=$VHOOKSHFLAGS" >> config.mak
2208 echo "VHOOKLIBS=$VHOOKLIBS" >> config.mak
2209 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2210 echo "BUILD_STATIC=$static" >> config.mak
2211 echo "BUILDSUF=$build_suffix" >> config.mak
2212 echo "FULLNAME=$FULLNAME" >> config.mak
2213 echo "LIBPREF=$LIBPREF" >> config.mak
2214 echo "LIBSUF=$LIBSUF" >> config.mak
2215 echo "LIBNAME=$LIBNAME" >> config.mak
2216 echo "SLIBPREF=$SLIBPREF" >> config.mak
2217 echo "SLIBSUF=$SLIBSUF" >> config.mak
2218 echo "EXESUF=$EXESUF" >> config.mak
2219 echo "EXTRA_VERSION=$extra_version" >> config.mak
2220 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2221
2222 if enabled bigendian; then
2223     echo "WORDS_BIGENDIAN=yes" >> config.mak
2224     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2225 fi
2226
2227 if enabled sdl; then
2228     echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak
2229     echo "SDL_CFLAGS=`"${SDL_CONFIG}" --cflags`" >> config.mak
2230 fi
2231 if enabled texi2html; then
2232     echo "BUILD_DOC=yes" >> config.mak
2233 fi
2234
2235 get_version(){
2236     name=$1
2237     file=$source_path/$2
2238     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2239     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2240     lcname=$(tolower $name)
2241     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2242     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2243 }
2244
2245 get_version LIBSWSCALE  libswscale/swscale.h
2246 get_version LIBPOSTPROC libpostproc/postprocess.h
2247 get_version LIBAVCODEC  libavcodec/avcodec.h
2248 get_version LIBAVDEVICE libavdevice/avdevice.h
2249 get_version LIBAVFORMAT libavformat/avformat.h
2250 get_version LIBAVUTIL   libavutil/avutil.h
2251 get_version LIBAVFILTER libavfilter/avfilter.h
2252
2253 if enabled shared; then
2254     echo "BUILD_SHARED=yes" >> config.mak
2255     echo "PIC=-fPIC -DPIC" >> config.mak
2256     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2257     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2258     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2259     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2260     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2261     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2262     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2263     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2264 fi
2265 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2266 echo "EXTRALIBS=$extralibs" >> config.mak
2267
2268 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2269 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2270 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2271                                       $CONFIG_EXTRA      \
2272                                       $DECODER_LIST      \
2273                                       $ENCODER_LIST      \
2274                                       $PARSER_LIST       \
2275                                       $BSF_LIST          \
2276                                       $DEMUXER_LIST      \
2277                                       $MUXER_LIST        \
2278                                       $FILTER_LIST       \
2279                                       $PROTOCOL_LIST     \
2280                                       $INDEV_LIST        \
2281                                       $OUTDEV_LIST       \
2282
2283 echo "#define restrict $_restrict" >> $TMPH
2284
2285 if enabled small; then
2286     echo "#define av_always_inline"  >> $TMPH
2287 fi
2288
2289 echo "SRC_PATH=\"$source_path\"" >> config.mak
2290 echo "SRC_PATH_BARE=$source_path" >> config.mak
2291 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2292
2293 # Apparently it's not possible to portably echo a backslash.
2294 enabled asmalign_pot &&
2295     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2296     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2297
2298 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2299
2300 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2301
2302 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2303 cmp -s $TMPH config.h &&
2304     echo "config.h is unchanged" ||
2305     mv -f $TMPH config.h
2306
2307 rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
2308
2309 # build tree in object directory if source path is different from current one
2310 if enabled source_path_used; then
2311     DIRS="\
2312         doc               \
2313         libavcodec        \
2314         libavcodec/alpha  \
2315         libavcodec/armv4l \
2316         libavcodec/bfin   \
2317         libavcodec/i386   \
2318         libavcodec/mlib   \
2319         libavcodec/ppc    \
2320         libavcodec/sh4    \
2321         libavcodec/sparc  \
2322         libavdevice       \
2323         libavfilter       \
2324         libavformat       \
2325         libavutil         \
2326         libpostproc       \
2327         libswscale        \
2328         tests             \
2329         tools             \
2330         vhook             \
2331         "
2332     FILES="\
2333         Makefile             \
2334         common.mak           \
2335         subdir.mak           \
2336         doc/texi2pod.pl      \
2337         libavcodec/Makefile  \
2338         libavdevice/Makefile \
2339         libavfilter/Makefile \
2340         libavformat/Makefile \
2341         libavutil/Makefile   \
2342         libpostproc/Makefile \
2343         libswscale/Makefile  \
2344         "
2345     for dir in $DIRS ; do
2346         mkdir -p $dir
2347     done
2348     for f in $FILES ; do
2349         $ln_s "$source_path/$f" $f
2350     done
2351 fi
2352
2353
2354 # build pkg-config files
2355
2356 pkgconfig_generate(){
2357 name=$1
2358 shortname=${name#lib}${build_suffix}
2359 comment=$2
2360 version=$3
2361 libs=$4
2362 requires=$5
2363 cat <<EOF > $name/$name.pc
2364 prefix=$prefix
2365 exec_prefix=\${prefix}
2366 libdir=$libdir
2367 includedir=$incdir
2368
2369 Name: $name
2370 Description: $comment
2371 Version: $version
2372 Requires: $(disabled shared && echo $requires)
2373 Requires.private: $(enabled shared && echo $requires)
2374 Conflicts:
2375 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2376 Libs.private: $(enabled shared && echo $libs)
2377 Cflags: -I\${includedir}
2378 EOF
2379 cat <<EOF > $name/$name-uninstalled.pc
2380 prefix=
2381 exec_prefix=
2382 libdir=\${pcfiledir}
2383 includedir=${source_path}
2384
2385 Name: $name
2386 Description: $comment
2387 Version: $version
2388 Requires: $requires
2389 Conflicts:
2390 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2391 Cflags: -I\${includedir}
2392 EOF
2393 }
2394
2395 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2396 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "$pkg_requires libavutil = $LIBAVUTIL_VERSION"
2397 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "$pkg_requires libavcodec = $LIBAVCODEC_VERSION"
2398 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$pkg_requires libavformat = $LIBAVFORMAT_VERSION"
2399 enabled avfilter &&
2400     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$pkg_requires libavutil = $LIBAVUTIL_VERSION"
2401 enabled postproc &&
2402     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2403 if enabled swscale; then
2404     pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
2405 else
2406     pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "$pkg_requires libavcodec = $LIBAVCODEC_VERSION"
2407     apply libswscale/libswscale.pc sed s/^Libs:.*$/Libs:/
2408 fi