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