configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58   echo "Usage: configure [options]"
  59   echo "Options: [defaults in brackets after descriptions]"
  60   echo
  61   echo "Standard options:"
  62   echo "  --help                   print this message"
  63   echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  64   echo "  --disable-logging        do not log configure debug information"
  65   echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
  66   echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
  67   echo "  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]"
  68   echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
  69   echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
  70   echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
  71   echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
  72   echo
  73   echo "Configuration options:"
  74   echo "  --disable-static         do not build static libraries [no]"
  75   echo "  --enable-shared          build shared libraries [no]"
  76   echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  77   echo "                           and binaries will be under GPL [no]"
  78   echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  79   echo "                           and binaries will be unredistributable [no]"
  80   echo "  --disable-ffmpeg         disable ffmpeg build"
  81   echo "  --disable-ffplay         disable ffplay build"
  82   echo "  --disable-ffserver       disable ffserver build"
  83   echo "  --enable-postproc        enable GPLed postprocessing support [no]"
  84   echo "  --enable-avfilter        video filter support [no]"
  85   echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  86   echo "  --enable-beosthreads     use BeOS threads [no]"
  87   echo "  --enable-os2threads      use OS/2 threads [no]"
  88   echo "  --enable-pthreads        use pthreads [no]"
  89   echo "  --enable-w32threads      use Win32 threads [no]"
  90   echo "  --enable-x11grab         enable X11 grabbing [no]"
  91   echo "  --disable-network        disable network support [no]"
  92   echo "  --disable-ipv6           disable IPv6 support [no]"
  93   echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  94   echo "  --enable-gray            enable full grayscale support (slower color)"
  95   echo "  --disable-swscale-alpha  disable alpha channel support in swscale"
  96   echo "  --disable-fastdiv        disable table-based division"
  97   echo "  --enable-small           optimize for size instead of speed"
  98   echo "  --disable-aandct         disable AAN DCT code"
  99   echo "  --disable-fft            disable FFT code"
 100   echo "  --disable-golomb         disable Golomb code"
 101   echo "  --disable-mdct           disable MDCT code"
 102   echo "  --disable-rdft           disable RDFT code"
 103   echo "  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
 104   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 105   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 106   echo "  --enable-beos-netserver  enable BeOS netserver"
 107   echo "  --disable-encoder=NAME   disable encoder NAME"
 108   echo "  --enable-encoder=NAME    enable encoder NAME"
 109   echo "  --disable-encoders       disable all encoders"
 110   echo "  --disable-decoder=NAME   disable decoder NAME"
 111   echo "  --enable-decoder=NAME    enable decoder NAME"
 112   echo "  --disable-decoders       disable all decoders"
 113   echo "  --disable-hwaccel=NAME   disable hwaccel NAME"
 114   echo "  --enable-hwaccel=NAME    enable hwaccel NAME"
 115   echo "  --disable-hwaccels       disable all hwaccels"
 116   echo "  --disable-muxer=NAME     disable muxer NAME"
 117   echo "  --enable-muxer=NAME      enable muxer NAME"
 118   echo "  --disable-muxers         disable all muxers"
 119   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 120   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 121   echo "  --disable-demuxers       disable all demuxers"
 122   echo "  --enable-parser=NAME     enable parser NAME"
 123   echo "  --disable-parser=NAME    disable parser NAME"
 124   echo "  --disable-parsers        disable all parsers"
 125   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 126   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 127   echo "  --disable-bsfs           disable all bitstream filters"
 128   echo "  --enable-protocol=NAME   enable protocol NAME"
 129   echo "  --disable-protocol=NAME  disable protocol NAME"
 130   echo "  --disable-protocols      disable all protocols"
 131   echo "  --disable-indevs         disable input devices"
 132   echo "  --disable-outdevs        disable output devices"
 133   echo "  --disable-devices        disable all devices"
 134   echo "  --enable-filter=NAME     enable filter NAME"
 135   echo "  --disable-filter=NAME    disable filter NAME"
 136   echo "  --disable-filters        disable all filters"
 137   echo "  --list-decoders          show all available decoders"
 138   echo "  --list-encoders          show all available encoders"
 139   echo "  --list-hwaccels          show all available hardware accelerators"
 140   echo "  --list-muxers            show all available muxers"
 141   echo "  --list-demuxers          show all available demuxers"
 142   echo "  --list-parsers           show all available parsers"
 143   echo "  --list-protocols         show all available protocols"
 144   echo "  --list-bsfs              show all available bitstream filters"
 145   echo "  --list-indevs            show all available input devices"
 146   echo "  --list-outdevs           show all available output devices"
 147   echo "  --list-filters           show all available filters"
 148   echo
 149   echo "External library support:"
 150   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 151   echo "  --enable-bzlib           enable bzlib [autodetect]"
 152   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
 153   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
 154   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
 155   echo "                           and libraw1394 [no]"
 156   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
 157   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 158   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 159   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 160   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 161   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 162   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 163   echo "                           native (de)muxer exists [no]"
 164   echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
 165   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 166   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 167   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 168   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 169   echo "                           native implementation exists [no]"
 170   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 171   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 172   echo "                           native MPEG-4/Xvid encoder exists [no]"
 173   echo "  --enable-mlib            enable Sun medialib [no]"
 174   echo "  --enable-zlib            enable zlib [autodetect]"
 175   echo ""
 176   echo "Advanced options (experts only):"
 177   echo "  --source-path=PATH       path to source code [$source_path]"
 178   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 179   echo "  --enable-cross-compile   assume a cross-compiler is used"
 180   echo "  --sysroot=PATH           root of cross-build tree"
 181   echo "  --sysinclude=PATH        location of cross-build system headers"
 182   echo "  --target-os=OS           compiler targets OS [$target_os]"
 183   echo "  --target-exec=CMD        command to run executables on target"
 184   echo "  --target-path=DIR        path to view of build directory on target"
 185   echo "  --nm=NM                  use nm tool"
 186   echo "  --as=AS                  use assembler AS [$as_default]"
 187   echo "  --cc=CC                  use C compiler CC [$cc_default]"
 188   echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
 189   echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
 190   echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
 191   echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
 192   echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
 193   echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
 194   echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
 195   echo "  --extra-version=STRING   version string suffix []"
 196   echo "  --build-suffix=SUFFIX    library name suffix []"
 197   echo "  --arch=ARCH              select architecture [$arch]"
 198   echo "  --cpu=CPU                select the minimum required CPU (affects"
 199   echo "                           instruction selection, may crash on older CPUs)"
 200   echo "  --enable-powerpc-perf    enable performance report on PPC"
 201   echo "                           (requires enabling PMC)"
 202   echo "  --disable-altivec        disable AltiVec optimizations"
 203   echo "  --disable-amd3dnow       disable 3DNow! optimizations"
 204   echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
 205   echo "  --disable-mmx            disable MMX optimizations"
 206   echo "  --disable-mmx2           disable MMX2 optimizations"
 207   echo "  --disable-sse            disable SSE optimizations"
 208   echo "  --disable-ssse3          disable SSSE3 optimizations"
 209   echo "  --disable-armv5te        disable armv5te optimizations"
 210   echo "  --disable-armv6          disable armv6 optimizations"
 211   echo "  --disable-armv6t2        disable armv6t2 optimizations"
 212   echo "  --disable-armvfp         disable ARM VFP optimizations"
 213   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 214   echo "  --disable-mmi            disable MMI optimizations"
 215   echo "  --disable-neon           disable neon optimizations"
 216   echo "  --disable-vis            disable VIS optimizations"
 217   echo "  --disable-yasm           disable use of yasm assembler"
 218   echo
 219   echo "Developer options (useful when working on FFmpeg itself):"
 220   echo "  --disable-debug          disable debugging symbols"
 221   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 222   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 223   echo "  --disable-optimizations  disable compiler optimizations"
 224   echo "  --enable-extra-warnings  enable more compiler warnings"
 225   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 226   echo ""
 227   echo "NOTE: Object files are built at the place where configure is launched."
 228   exit 0
 229 }
 230
 231 log(){
 232     echo "$@" >> $logfile
 233 }
 234
 235 log_file(){
 236     log BEGIN $1
 237     pr -n -t $1 >> $logfile
 238     log END $1
 239 }
 240
 241 echolog(){
 242     log "$@"
 243     echo "$@"
 244 }
 245
 246 die(){
 247     echolog "$@"
 248     cat <<EOF
 249
 250 If you think configure made a mistake, make sure you are using the latest
 251 version from SVN.  If the latest version fails, report the problem to the
 252 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 253 EOF
 254     if disabled logging; then
 255         cat <<EOF
 256 Rerun configure with logging enabled (do not use --disable-logging), and
 257 include the log this produces with your report.
 258 EOF
 259     else
 260 cat <<EOF
 261 Include the log file "$logfile" produced by configure as this will help
 262 solving the problem.
 263 EOF
 264     fi
 265     exit 1
 266 }
 267
 268 # Avoid locale weirdness, besides we really just want to translate ASCII.
 269 toupper(){
 270     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 271 }
 272
 273 tolower(){
 274     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 275 }
 276
 277 c_escape(){
 278     echo "$*" | sed 's/["\\]/\\\0/g'
 279 }
 280
 281 set_all(){
 282     value=$1
 283     shift
 284     for var in $*; do
 285         eval $var=$value
 286     done
 287 }
 288
 289 set_weak(){
 290     value=$1
 291     shift
 292     for var; do
 293         eval : \${$var:=$value}
 294     done
 295 }
 296
 297 pushvar(){
 298     for var in $*; do
 299         eval level=\${${var}_level:=0}
 300         eval ${var}_${level}="\$$var"
 301         eval ${var}_level=$(($level+1))
 302     done
 303 }
 304
 305 popvar(){
 306     for var in $*; do
 307         eval level=\${${var}_level:-0}
 308         test $level = 0 && continue
 309         eval level=$(($level-1))
 310         eval $var="\${${var}_${level}}"
 311         eval ${var}_level=$level
 312         eval unset ${var}_${level}
 313     done
 314 }
 315
 316 enable(){
 317     set_all yes $*
 318 }
 319
 320 disable(){
 321     set_all no $*
 322 }
 323
 324 enable_weak(){
 325     set_weak yes $*
 326 }
 327
 328 disable_weak(){
 329     set_weak no $*
 330 }
 331
 332 enable_safe(){
 333     enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 334 }
 335
 336 disable_safe(){
 337     disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 338 }
 339
 340 do_enable_deep(){
 341     for var; do
 342         enabled $var && continue
 343         eval sel="\$${var}_select"
 344         eval sgs="\$${var}_suggest"
 345         pushvar var sgs
 346         enable_deep $sel
 347         popvar sgs
 348         enable_deep_weak $sgs
 349         popvar var
 350     done
 351 }
 352
 353 enable_deep(){
 354     do_enable_deep $*
 355     enable $*
 356 }
 357
 358 enable_deep_weak(){
 359     do_enable_deep $*
 360     enable_weak $*
 361 }
 362
 363 enabled(){
 364     test "${1#!}" = "$1" && op== || op=!=
 365     eval test "x\$${1#!}" $op "xyes"
 366 }
 367
 368 disabled(){
 369     test "${1#!}" = "$1" && op== || op=!=
 370     eval test "x\$${1#!}" $op "xno"
 371 }
 372
 373 enabled_all(){
 374     for opt; do
 375         enabled $opt || return 1
 376     done
 377 }
 378
 379 disabled_all(){
 380     for opt; do
 381         disabled $opt || return 1
 382     done
 383 }
 384
 385 enabled_any(){
 386     for opt; do
 387         enabled $opt && return 0
 388     done
 389 }
 390
 391 disabled_any(){
 392     for opt; do
 393         disabled $opt && return 0
 394     done
 395     return 1
 396 }
 397
 398 set_default(){
 399     for opt; do
 400         eval : \${$opt:=\$${opt}_default}
 401     done
 402 }
 403
 404 is_in(){
 405     value=$1
 406     shift
 407     for var in $*; do
 408         [ $var = $value ] && return 0
 409     done
 410     return 1
 411 }
 412
 413 check_deps(){
 414     for cfg; do
 415         cfg="${cfg#!}"
 416         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 417         disabled ${cfg}_checking && continue
 418         enable ${cfg}_checking
 419
 420         eval dep_all="\$${cfg}_deps"
 421         eval dep_any="\$${cfg}_deps_any"
 422         eval dep_sel="\$${cfg}_select"
 423         eval dep_sgs="\$${cfg}_suggest"
 424
 425         pushvar cfg dep_all dep_any dep_sel dep_sgs
 426         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 427         popvar cfg dep_all dep_any dep_sel dep_sgs
 428
 429         enabled_all  $dep_all || disable $cfg
 430         enabled_any  $dep_any || disable $cfg
 431         disabled_any $dep_sel && disable $cfg
 432
 433         if enabled $cfg; then
 434             eval dep_extralibs="\$${cfg}_extralibs"
 435             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 436             enable_deep $dep_sel
 437             enable_deep_weak $dep_sgs
 438         fi
 439
 440         disable ${cfg}_checking
 441     done
 442 }
 443
 444 print_config(){
 445     pfx=$1
 446     header=$2
 447     makefile=$3
 448     shift 3
 449     for cfg; do
 450         ucname="$(toupper $cfg)"
 451         if enabled $cfg; then
 452             echo "#define ${pfx}${ucname} 1" >> $header
 453             echo "${pfx}${ucname}=yes" >> $makefile
 454         else
 455             echo "#define ${pfx}${ucname} 0" >> $header
 456         fi
 457     done
 458 }
 459
 460 flags_saved(){
 461     (: ${SAVE_CFLAGS?}) 2> /dev/null
 462 }
 463
 464 save_flags(){
 465     flags_saved && return
 466     SAVE_CFLAGS="$CFLAGS"
 467     SAVE_LDFLAGS="$LDFLAGS"
 468     SAVE_extralibs="$extralibs"
 469 }
 470
 471 restore_flags(){
 472     flags_saved || return
 473     CFLAGS="$SAVE_CFLAGS"
 474     LDFLAGS="$SAVE_LDFLAGS"
 475     extralibs="$SAVE_extralibs"
 476     unset SAVE_CFLAGS
 477     unset SAVE_LDFLAGS
 478     unset SAVE_extralibs
 479 }
 480
 481 temp_cflags(){
 482     save_flags
 483     CFLAGS="$CFLAGS $*"
 484 }
 485
 486 temp_ldflags(){
 487     save_flags
 488     LDFLAGS="$LDFLAGS $*"
 489 }
 490
 491 temp_extralibs(){
 492     save_flags
 493     extralibs="$extralibs $*"
 494 }
 495
 496 append(){
 497     var=$1
 498     shift
 499     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 500     eval "$var=\"\$$var $*\""
 501 }
 502
 503 add_cflags(){
 504     append CFLAGS "$@"
 505 }
 506
 507 add_ldflags(){
 508     append LDFLAGS "$@"
 509 }
 510
 511 add_extralibs(){
 512     append extralibs "$@"
 513 }
 514
 515 check_cmd(){
 516     log "$@"
 517     "$@" >> $logfile 2>&1
 518 }
 519
 520 check_cc(){
 521     log check_cc "$@"
 522     cat > $TMPC
 523     log_file $TMPC
 524     check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
 525 }
 526
 527 check_cpp(){
 528     log check_cpp "$@"
 529     cat > $TMPC
 530     log_file $TMPC
 531     check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
 532 }
 533
 534 check_as(){
 535     log check_as "$@"
 536     cat > $TMPC
 537     log_file $TMPC
 538     check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
 539 }
 540
 541 check_asm(){
 542     log check_asm "$@"
 543     name="$1"
 544     asm="$2"
 545     shift 2
 546     check_as "$@" <<EOF && enable $name || disable $name
 547 void foo(void){ __asm__ volatile($asm); }
 548 EOF
 549 }
 550
 551 check_yasm(){
 552     log check_yasm "$@"
 553     echo "$1" > $TMPS
 554     log_file $TMPS
 555     shift 1
 556     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 557 }
 558
 559 check_ld(){
 560     log check_ld "$@"
 561     check_cc || return
 562     flags=''
 563     libs=''
 564     for f; do
 565         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 566     done
 567     check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 568 }
 569
 570 check_cflags(){
 571     log check_cflags "$@"
 572     check_cc "$@" <<EOF && add_cflags "$@"
 573 int x;
 574 EOF
 575 }
 576
 577 check_ldflags(){
 578     log check_ldflags "$@"
 579     check_ld "$@" <<EOF && add_ldflags "$@"
 580 int main(void){ return 0; }
 581 EOF
 582 }
 583
 584 check_header(){
 585     log check_header "$@"
 586     header=$1
 587     shift
 588     disable_safe $header
 589     check_cpp "$@" <<EOF && enable_safe $header
 590 #include <$header>
 591 int x;
 592 EOF
 593 }
 594
 595 check_func(){
 596     log check_func "$@"
 597     func=$1
 598     shift
 599     disable $func
 600     check_ld "$@" <<EOF && enable $func
 601 extern int $func();
 602 int main(void){ $func(); }
 603 EOF
 604 }
 605
 606 check_func_headers(){
 607     log check_func_headers "$@"
 608     headers=$1
 609     func=$2
 610     shift 2
 611     disable $func
 612     incs=""
 613     for hdr in $headers; do
 614         incs="$incs
 615 #include <$hdr>"
 616     done
 617     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 618 $incs
 619 int main(int argc, char **argv){
 620     (void) $func;
 621     return 0;
 622 }
 623 EOF
 624 }
 625
 626 check_cpp_condition(){
 627     log check_cpp_condition "$@"
 628     header=$1
 629     condition=$2
 630     check_cpp <<EOF
 631 #include <$header>
 632 #if !($condition)
 633 #error "unsatisfied condition: $condition"
 634 #endif
 635 EOF
 636 }
 637
 638 check_lib(){
 639     log check_lib "$@"
 640     header="$1"
 641     func="$2"
 642     shift 2
 643     temp_extralibs "$@"
 644     check_header $header && check_func $func && add_extralibs "$@"
 645     err=$?
 646     restore_flags
 647     return $err
 648 }
 649
 650 check_lib2(){
 651     log check_lib2 "$@"
 652     headers="$1"
 653     func="$2"
 654     shift 2
 655     temp_extralibs "$@"
 656     check_func_headers "$headers" $func && add_extralibs "$@"
 657     err=$?
 658     restore_flags
 659     return $err
 660 }
 661
 662 check_exec(){
 663     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 664 }
 665
 666 check_exec_crash(){
 667     code=$(cat)
 668
 669     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 670     # are safe but may not be available everywhere.  Thus we use
 671     # raise(SIGTERM) instead.  The check is run in a subshell so we
 672     # can redirect the "Terminated" message from the shell.  SIGBUS
 673     # is not defined by standard C so it is used conditionally.
 674
 675     (check_exec "$@") >> $logfile 2>&1 <<EOF
 676 #include <signal.h>
 677 static void sighandler(int sig){
 678     raise(SIGTERM);
 679 }
 680 int main(void){
 681     signal(SIGILL, sighandler);
 682     signal(SIGFPE, sighandler);
 683     signal(SIGSEGV, sighandler);
 684 #ifdef SIGBUS
 685     signal(SIGBUS, sighandler);
 686 #endif
 687     { $code }
 688 }
 689 EOF
 690 }
 691
 692 check_type(){
 693     log check_type "$@"
 694     headers=$1
 695     type=$2
 696     shift 2
 697     disable $type
 698     incs=""
 699     for hdr in $headers; do
 700         incs="$incs
 701 #include <$hdr>"
 702     done
 703     check_cc "$@" <<EOF && enable $type
 704 $incs
 705 $type v;
 706 EOF
 707 }
 708
 709 require(){
 710     name="$1"
 711     header="$2"
 712     func="$3"
 713     shift 3
 714     check_lib $header $func "$@" || die "ERROR: $name not found"
 715 }
 716
 717 require2(){
 718     name="$1"
 719     headers="$2"
 720     func="$3"
 721     shift 3
 722     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 723 }
 724
 725 check_foo_config(){
 726     cfg=$1
 727     pkg=$2
 728     header=$3
 729     func=$4
 730     shift 4
 731     disable $cfg
 732     check_cmd ${pkg}-config --version
 733     err=$?
 734     if test "$err" = 0; then
 735         temp_cflags $(${pkg}-config --cflags)
 736         temp_extralibs $(${pkg}-config --libs)
 737         check_lib "$@" $header $func && enable $cfg
 738     fi
 739     return $err
 740 }
 741
 742 apply(){
 743     file=$1
 744     shift
 745     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 746 }
 747
 748 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 749 # system-dependent things.
 750
 751 COMPONENT_LIST="
 752     bsfs
 753     decoders
 754     demuxers
 755     encoders
 756     filters
 757     hwaccels
 758     indevs
 759     muxers
 760     outdevs
 761     parsers
 762     protocols
 763 "
 764
 765 CONFIG_LIST="
 766     $COMPONENT_LIST
 767     aandct
 768     avfilter
 769     avfilter_lavf
 770     avisynth
 771     beos_netserver
 772     bzlib
 773     fastdiv
 774     ffmpeg
 775     ffplay
 776     ffserver
 777     fft
 778     golomb
 779     gpl
 780     gprof
 781     gray
 782     hardcoded_tables
 783     ipv6
 784     libamr_nb
 785     libamr_wb
 786     libdc1394
 787     libdirac
 788     libfaac
 789     libfaad
 790     libfaadbin
 791     libgsm
 792     libmp3lame
 793     libnut
 794     libopenjpeg
 795     libschroedinger
 796     libspeex
 797     libtheora
 798     libvorbis
 799     libx264
 800     libxvid
 801     mdct
 802     memalign_hack
 803     mlib
 804     mpegaudio_hp
 805     network
 806     nonfree
 807     postproc
 808     powerpc_perf
 809     rdft
 810     runtime_cpudetect
 811     shared
 812     small
 813     static
 814     swscale_alpha
 815     x11grab
 816     zlib
 817 "
 818
 819 THREADS_LIST='
 820     beosthreads
 821     os2threads
 822     pthreads
 823     w32threads
 824 '
 825
 826 ARCH_LIST='
 827     alpha
 828     arm
 829     bfin
 830     ia64
 831     m68k
 832     mips
 833     mips64
 834     parisc
 835     ppc
 836     s390
 837     sh4
 838     sparc
 839     sparc64
 840     x86
 841     x86_32
 842     x86_64
 843 '
 844
 845 ARCH_EXT_LIST='
 846     altivec
 847     amd3dnow
 848     amd3dnowext
 849     armv5te
 850     armv6
 851     armv6t2
 852     armvfp
 853     iwmmxt
 854     mmi
 855     mmx
 856     mmx2
 857     neon
 858     ppc4xx
 859     sse
 860     ssse3
 861     vis
 862 '
 863
 864 HAVE_LIST="
 865     $ARCH_EXT_LIST
 866     $THREADS_LIST
 867     alsa_asoundlib_h
 868     altivec_h
 869     arpa_inet_h
 870     bigendian
 871     bswap
 872     closesocket
 873     cmov
 874     conio_h
 875     dcbzl
 876     dev_bktr_ioctl_bt848_h
 877     dev_bktr_ioctl_meteor_h
 878     dev_ic_bt8xx_h
 879     dev_video_meteor_ioctl_meteor_h
 880     dev_video_bktr_ioctl_bt848_h
 881     dlfcn_h
 882     dlopen
 883     dos_paths
 884     ebp_available
 885     ebx_available
 886     fast_64bit
 887     fast_cmov
 888     fast_unaligned
 889     fork
 890     gethrtime
 891     GetProcessTimes
 892     getrusage
 893     inet_aton
 894     inline_asm
 895     ldbrx
 896     libdc1394_1
 897     libdc1394_2
 898     llrint
 899     lrint
 900     lrintf
 901     lzo1x_999_compress
 902     machine_ioctl_bt848_h
 903     machine_ioctl_meteor_h
 904     malloc_h
 905     memalign
 906     mkstemp
 907     pld
 908     posix_memalign
 909     ppc64
 910     round
 911     roundf
 912     sdl
 913     sdl_video_size
 914     setmode
 915     socklen_t
 916     soundcard_h
 917     poll_h
 918     sys_mman_h
 919     sys_resource_h
 920     sys_select_h
 921     sys_soundcard_h
 922     sys_videoio_h
 923     ten_operands
 924     termios_h
 925     threads
 926     truncf
 927     VirtualAlloc
 928     winsock2_h
 929     xform_asm
 930     yasm
 931 "
 932
 933 # options emitted with CONFIG_ prefix but not available on command line
 934 CONFIG_EXTRA="
 935 "
 936
 937 CMDLINE_SELECT="
 938     $ARCH_EXT_LIST
 939     $CONFIG_LIST
 940     $THREADS_LIST
 941     cross_compile
 942     debug
 943     extra_warnings
 944     logging
 945     optimizations
 946     stripping
 947     yasm
 948 "
 949
 950 PATHS_LIST='
 951     bindir
 952     datadir
 953     incdir
 954     libdir
 955     mandir
 956     prefix
 957     shlibdir
 958 '
 959
 960 CMDLINE_SET="
 961     $PATHS_LIST
 962     arch
 963     as
 964     build_suffix
 965     cc
 966     cpu
 967     cross_prefix
 968     extra_version
 969     host_cc
 970     host_cflags
 971     host_ldflags
 972     host_libs
 973     host_os
 974     logfile
 975     nm
 976     source_path
 977     sysinclude
 978     sysroot
 979     target_exec
 980     target_os
 981     target_path
 982 "
 983
 984 # code dependency declarations
 985
 986 # architecture extensions
 987 altivec_deps="ppc"
 988 amd3dnow_deps="mmx"
 989 amd3dnowext_deps="amd3dnow"
 990 armv5te_deps="arm"
 991 armv6_deps="arm"
 992 armv6t2_deps="arm"
 993 armvfp_deps="arm"
 994 iwmmxt_deps="arm"
 995 mmi_deps="mips"
 996 mmx_deps="x86"
 997 mmx2_deps="mmx"
 998 neon_deps="arm"
 999 ppc4xx_deps="ppc"
1000 sse_deps="mmx"
1001 ssse3_deps="sse"
1002 vis_deps="sparc"
1003
1004 # decoders / encoders / hardware accelerators
1005 aac_decoder_select="fft mdct"
1006 ac3_decoder_select="fft mdct"
1007 atrac3_decoder_select="fft mdct"
1008 cavs_decoder_select="golomb"
1009 cook_decoder_select="fft mdct"
1010 cscd_decoder_suggest="zlib"
1011 dca_decoder_select="fft mdct"
1012 dnxhd_encoder_select="aandct"
1013 dxa_decoder_select="zlib"
1014 eac3_decoder_select="fft mdct"
1015 eatgq_decoder_select="aandct"
1016 eatqi_decoder_select="aandct"
1017 ffv1_decoder_select="golomb"
1018 flac_decoder_select="golomb"
1019 flac_encoder_select="golomb"
1020 flashsv_decoder_select="zlib"
1021 flashsv_encoder_select="zlib"
1022 flv_encoder_select="aandct"
1023 h261_encoder_select="aandct"
1024 h263_encoder_select="aandct"
1025 h263_vaapi_hwaccel_deps="va_va_h"
1026 h263p_encoder_select="aandct"
1027 h264_decoder_select="golomb"
1028 h264_vaapi_hwaccel_deps="va_va_h"
1029 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1030 imc_decoder_select="fft mdct"
1031 jpegls_decoder_select="golomb"
1032 jpegls_encoder_select="golomb"
1033 ljpeg_encoder_select="aandct"
1034 loco_decoder_select="golomb"
1035 mjpeg_encoder_select="aandct"
1036 mpeg1video_encoder_select="aandct"
1037 mpeg2video_encoder_select="aandct"
1038 mpeg4_encoder_select="aandct"
1039 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1040 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1041 mpeg2_vaapi_hwaccel_deps="va_va_h"
1042 mpeg4_vaapi_hwaccel_deps="va_va_h"
1043 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1044 msmpeg4v1_encoder_select="aandct"
1045 msmpeg4v2_encoder_select="aandct"
1046 msmpeg4v3_encoder_select="aandct"
1047 nellymoser_decoder_select="fft mdct"
1048 nellymoser_encoder_select="fft mdct"
1049 png_decoder_select="zlib"
1050 png_encoder_select="zlib"
1051 qdm2_decoder_select="fft mdct rdft"
1052 rv10_encoder_select="aandct"
1053 rv20_encoder_select="aandct"
1054 rv30_decoder_select="golomb"
1055 rv40_decoder_select="golomb"
1056 shorten_decoder_select="golomb"
1057 sonic_decoder_select="golomb"
1058 sonic_encoder_select="golomb"
1059 sonic_ls_encoder_select="golomb"
1060 svq3_decoder_select="golomb"
1061 svq3_decoder_suggest="zlib"
1062 tiff_decoder_suggest="zlib"
1063 tiff_encoder_suggest="zlib"
1064 tscc_decoder_select="zlib"
1065 vc1_vaapi_hwaccel_deps="va_va_h"
1066 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1067 vorbis_decoder_select="fft mdct"
1068 vorbis_encoder_select="fft mdct"
1069 wmav1_decoder_select="fft mdct"
1070 wmav1_encoder_select="fft mdct"
1071 wmav2_decoder_select="fft mdct"
1072 wmav2_encoder_select="fft mdct"
1073 wmv1_encoder_select="aandct"
1074 wmv2_encoder_select="aandct"
1075 wmv3_vaapi_hwaccel_deps="va_va_h"
1076 wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1077 zlib_decoder_select="zlib"
1078 zlib_encoder_select="zlib"
1079 zmbv_decoder_select="zlib"
1080 zmbv_encoder_select="zlib"
1081
1082 # external libraries
1083 libamr_nb_decoder_deps="libamr_nb"
1084 libamr_nb_encoder_deps="libamr_nb"
1085 libamr_wb_decoder_deps="libamr_wb"
1086 libamr_wb_encoder_deps="libamr_wb"
1087 libdirac_decoder_deps="libdirac !libschroedinger"
1088 libdirac_encoder_deps="libdirac"
1089 libfaac_encoder_deps="libfaac"
1090 libfaad_decoder_deps="libfaad"
1091 libfaadbin_decoder_extralibs='$ldl'
1092 libgsm_decoder_deps="libgsm"
1093 libgsm_encoder_deps="libgsm"
1094 libgsm_ms_decoder_deps="libgsm"
1095 libgsm_ms_encoder_deps="libgsm"
1096 libmp3lame_encoder_deps="libmp3lame"
1097 libopenjpeg_decoder_deps="libopenjpeg"
1098 libschroedinger_decoder_deps="libschroedinger"
1099 libschroedinger_encoder_deps="libschroedinger"
1100 libspeex_decoder_deps="libspeex"
1101 libtheora_encoder_deps="libtheora"
1102 libvorbis_encoder_deps="libvorbis"
1103 libx264_encoder_deps="libx264"
1104 libxvid_encoder_deps="libxvid"
1105
1106 # demuxers / muxers
1107 ac3_demuxer_deps="ac3_parser"
1108 alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1109 alsa_demuxer_extralibs="-lasound"
1110 alsa_muxer_deps="alsa_asoundlib_h"
1111 alsa_muxer_extralibs="-lasound"
1112 audio_beos_demuxer_deps="audio_beos"
1113 audio_beos_demuxer_extralibs="-lmedia -lbe"
1114 audio_beos_muxer_deps="audio_beos"
1115 audio_beos_muxer_extralibs="-lmedia -lbe"
1116 avisynth_demuxer_deps="avisynth"
1117 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1118 dirac_demuxer_deps="dirac_parser"
1119 dv1394_demuxer_deps="dv1394 dv_demuxer"
1120 jack_demuxer_deps="jack_jack_h"
1121 jack_demuxer_extralibs="-ljack"
1122 libdc1394_demuxer_deps="libdc1394"
1123 libnut_demuxer_deps="libnut"
1124 libnut_muxer_deps="libnut"
1125 matroska_demuxer_suggest="zlib bzlib"
1126 mov_demuxer_suggest="zlib"
1127 mp3_demuxer_deps="mpegaudio_parser"
1128 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1129 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1130 redir_demuxer_deps="network"
1131 rtp_muxer_deps="network rtp_protocol"
1132 rtsp_demuxer_deps="sdp_demuxer"
1133 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1134 v4l_demuxer_deps="linux_videodev_h"
1135 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1136 vfwcap_demuxer_deps="capCreateCaptureWindow"
1137 vfwcap_demuxer_extralibs="-lvfw32"
1138 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1139 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1140
1141 # protocols
1142 gopher_protocol_deps="network"
1143 http_protocol_deps="network"
1144 rtp_protocol_deps="udp_protocol"
1145 tcp_protocol_deps="network"
1146 udp_protocol_deps="network"
1147
1148 # filters
1149 movie_filter_deps="avfilter_lavf"
1150
1151 # programs
1152 ffplay_deps="sdl"
1153 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1154 ffserver_extralibs='$ldl'
1155
1156
1157 # default parameters
1158
1159 logfile="config.err"
1160
1161 # installation paths
1162 prefix_default="/usr/local"
1163 bindir_default='${prefix}/bin'
1164 datadir_default='${prefix}/share/ffmpeg'
1165 incdir_default='${prefix}/include'
1166 libdir_default='${prefix}/lib'
1167 mandir_default='${prefix}/share/man'
1168 shlibdir_default="$libdir_default"
1169
1170 # toolchain
1171 ar="ar"
1172 cc_default="gcc"
1173 host_cc_default="gcc"
1174 ln_s="ln -sf"
1175 nm_default="nm"
1176 objformat="elf"
1177 ranlib="ranlib"
1178 strip="strip"
1179 yasmexe="yasm"
1180
1181 # machine
1182 arch=$(uname -m)
1183 cpu="generic"
1184
1185 # OS
1186 target_os=$(tolower $(uname -s))
1187 host_os=$target_os
1188
1189 # configurable options
1190 enable debug
1191 enable fastdiv
1192 enable ffmpeg
1193 enable ffplay
1194 enable ffserver
1195 enable ipv6
1196 enable mpegaudio_hp
1197 enable network
1198 enable optimizations
1199 enable protocols
1200 enable static
1201 enable stripping
1202 enable swscale_alpha
1203
1204 # build settings
1205 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1206 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1207 FFSERVERLDFLAGS=-Wl,-E
1208 LIBPREF="lib"
1209 LIBSUF=".a"
1210 FULLNAME='$(NAME)$(BUILDSUF)'
1211 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1212 SLIBPREF="lib"
1213 SLIBSUF=".so"
1214 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1215 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1216 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1217 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1218
1219 host_cflags='-O3 -g -Wall'
1220 host_libs='-lm'
1221
1222 target_path='.'
1223
1224 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1225 # full relative path for objects in subdirectories for non-recursive Make.
1226 DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1227
1228 # find source path
1229 source_path="$(dirname "$0")"
1230 enable source_path_used
1231 if test -z "$source_path" -o "$source_path" = "." ; then
1232     source_path="$(pwd)"
1233     disable source_path_used
1234 else
1235     source_path="$(cd "$source_path"; pwd)"
1236     echo "$source_path" | grep -q '[[:blank:]]' &&
1237         die "Out of tree builds are impossible with whitespace in source path."
1238     test -e "$source_path/config.h" &&
1239         die "Out of tree builds are impossible with config.h in source dir."
1240 fi
1241
1242 for v in "$@"; do
1243     r="${v#*=}"
1244     l="${v%$r}"
1245     test "$r" = "${r#* }" || r="'$r'"
1246     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1247 done
1248
1249 find_things(){
1250     thing=$1
1251     pattern=$2
1252     file=$source_path/$3
1253     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1254 }
1255
1256 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1257 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1258 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1259 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1260 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1261 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1262 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1263 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1264 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1265 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1266 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1267
1268 enable $ARCH_EXT_LIST \
1269        $DECODER_LIST \
1270        $ENCODER_LIST \
1271        $HWACCEL_LIST \
1272        $PARSER_LIST \
1273        $BSF_LIST \
1274        $DEMUXER_LIST \
1275        $MUXER_LIST \
1276        $FILTER_LIST \
1277        $PROTOCOL_LIST \
1278        $INDEV_LIST \
1279        $OUTDEV_LIST \
1280
1281 die_unknown(){
1282     echo "Unknown option \"$1\"."
1283     echo "See $0 --help for available options."
1284     exit 1
1285 }
1286
1287 show_list() {
1288     suffix=_$1
1289     shift
1290     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1291     exit 0
1292 }
1293
1294 for opt do
1295     optval="${opt#*=}"
1296     case "$opt" in
1297     --extra-cflags=*) add_cflags $optval
1298     ;;
1299     --extra-ldflags=*) add_ldflags $optval
1300     ;;
1301     --extra-libs=*) add_extralibs $optval
1302     ;;
1303     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1304     ;;
1305     --enable-debug=*) debuglevel="$optval"
1306     ;;
1307     --enable-*=*|--disable-*=*)
1308     eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1309     case "$thing" in
1310         encoder|decoder|hwaccel|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1311         *) die_unknown "$opt" ;;
1312     esac
1313     ;;
1314     --enable-?*|--disable-?*)
1315     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1316     if is_in $option $COMPONENT_LIST; then
1317         eval $action \$$(toupper ${option%s})_LIST
1318     elif is_in $option $CMDLINE_SELECT; then
1319         $action $option
1320     else
1321         die_unknown $opt
1322     fi
1323     ;;
1324     --list-*)
1325         NAME="${opt#--list-}"
1326         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1327         NAME=${NAME%s}
1328         eval show_list $NAME \$$(toupper $NAME)_LIST
1329     ;;
1330     --help|-h) show_help
1331     ;;
1332     *)
1333     optname="${opt%%=*}"
1334     optname="${optname#--}"
1335     optname=$(echo "$optname" | sed 's/-/_/g')
1336     is_in $optname $CMDLINE_SET || die_unknown $opt
1337     eval $optname='$optval'
1338     ;;
1339     esac
1340 done
1341
1342 disabled logging && logfile=/dev/null
1343
1344 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1345 set >> $logfile
1346
1347 test -n "$cross_prefix" && enable cross_compile
1348
1349 ar="${cross_prefix}${ar}"
1350 cc_default="${cross_prefix}${cc_default}"
1351 nm_default="${cross_prefix}${nm_default}"
1352 ranlib="${cross_prefix}${ranlib}"
1353 strip="${cross_prefix}${strip}"
1354
1355 sysinclude_default="${sysroot}/usr/include"
1356
1357 set_default cc nm sysinclude
1358 as_default=$cc
1359 enabled cross_compile || host_cc_default=$cc
1360 set_default host_cc
1361
1362 exesuf() {
1363     case $1 in
1364         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1365     esac
1366 }
1367
1368 EXESUF=$(exesuf $target_os)
1369 HOSTEXESUF=$(exesuf $host_os)
1370
1371 # set temporary file name
1372 : ${TMPDIR:=$TEMPDIR}
1373 : ${TMPDIR:=$TMP}
1374 : ${TMPDIR:=/tmp}
1375
1376 if ! check_cmd type mktemp; then
1377     # simple replacement for missing mktemp
1378     # NOT SAFE FOR GENERAL USE
1379     mktemp(){
1380         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1381     }
1382 fi
1383
1384 tmpfile(){
1385     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1386         (set -C; exec > $tmp) 2>/dev/null ||
1387         die "Unable to create temoporary file in $TMPDIR."
1388     append TMPFILES $tmp
1389     eval $1=$tmp
1390 }
1391
1392 trap 'rm -f -- $TMPFILES' EXIT
1393 trap exit HUP INT TERM
1394
1395 tmpfile TMPC  .c
1396 tmpfile TMPE  $EXESUF
1397 tmpfile TMPH  .h
1398 tmpfile TMPO  .o
1399 tmpfile TMPS  .S
1400 tmpfile TMPSH .sh
1401
1402 unset -f mktemp
1403
1404 # make sure we can execute files in $TMPDIR
1405 cat > $TMPSH 2>> $logfile <<EOF
1406 #! /bin/sh
1407 EOF
1408 chmod +x $TMPSH >> $logfile 2>&1
1409 if ! $TMPSH >> $logfile 2>&1; then
1410     cat <<EOF
1411 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1412 variable to another directory and make sure that it is not mounted noexec.
1413 EOF
1414     die "Sanity test failed."
1415 fi
1416
1417 if   $cc --version 2>/dev/null | grep -qi gcc; then
1418     cc_type=gcc
1419 elif $cc --version 2>/dev/null | grep -q Intel; then
1420     cc_type=icc
1421 elif $cc -v 2>&1 | grep -q xlc; then
1422     cc_type=xlc
1423 elif $cc -V 2>/dev/null | grep -q Compaq; then
1424     cc_type=ccc
1425     DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1426     debuglevel=3
1427     add_ldflags -Wl,-z,now # calls to libots crash without this
1428 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1429     test -d "$sysroot" || die "No valid sysroot specified."
1430     cc_type=armcc
1431     armcc_conf="$PWD/armcc.conf"
1432     $cc --arm_linux_configure                 \
1433         --arm_linux_config_file="$armcc_conf" \
1434         --configure_sysroot="$sysroot"        \
1435         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1436         die "Error creating armcc configuration file."
1437     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1438     as_default="${cross_prefix}gcc"
1439 fi
1440
1441 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1442
1443 set_default as
1444
1445 if test -n "$sysroot"; then
1446     case "$cc_type" in
1447         gcc)
1448             add_cflags  --sysroot="$sysroot"
1449             add_ldflags --sysroot="$sysroot"
1450         ;;
1451     esac
1452 fi
1453
1454 # compiler sanity check
1455 check_exec <<EOF
1456 int main(void){ return 0; }
1457 EOF
1458 if test "$?" != 0; then
1459     echo "$cc is unable to create an executable file."
1460     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1461         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1462         echo "Only do this if you know what cross compiling means."
1463     fi
1464     die "C compiler test failed."
1465 fi
1466
1467 check_cflags -std=c99
1468 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1469 #include <stdlib.h>
1470 EOF
1471 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1472 #include <stdlib.h>
1473 EOF
1474
1475 case "$arch" in
1476     alpha)
1477         arch="alpha"
1478         enable fast_64bit
1479         check_cflags -mieee
1480     ;;
1481     arm|armv[4567]*l)
1482         arch="arm"
1483     ;;
1484     avr32)
1485     ;;
1486     bfin)
1487         arch="bfin"
1488     ;;
1489     ia64)
1490         arch="ia64"
1491         enable fast_64bit
1492     ;;
1493     m68k)
1494         arch="m68k"
1495     ;;
1496     mips|mipsel|IP*)
1497         arch="mips"
1498     ;;
1499     mips64)
1500         arch="mips"
1501         subarch="mips64"
1502         enable fast_64bit
1503     ;;
1504     parisc|hppa)
1505         arch="parisc"
1506     ;;
1507     parisc64|hppa64)
1508         arch="parisc"
1509         enable fast_64bit
1510     ;;
1511     "Power Macintosh"|ppc|powerpc)
1512         arch="ppc"
1513         enable fast_unaligned
1514     ;;
1515     ppc64)
1516         arch="ppc"
1517         enable fast_64bit
1518         enable fast_unaligned
1519     ;;
1520     s390|s390x)
1521         arch="s390"
1522     ;;
1523     sh4|sh)
1524         arch="sh4"
1525     ;;
1526     sparc)
1527         arch="sparc"
1528     ;;
1529     sun4u|sparc64)
1530         arch="sparc"
1531         subarch="sparc64"
1532         enable fast_64bit
1533     ;;
1534     i386|i486|i586|i686|i86pc|BePC)
1535         arch="x86"
1536         subarch="x86_32"
1537         enable fast_unaligned
1538     ;;
1539     x86_64|amd64)
1540         arch="x86"
1541         subarch="x86_32"
1542         enable cmov
1543         enable fast_cmov
1544         enable fast_unaligned
1545         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1546         int test[sizeof(char*) - 7];
1547 EOF
1548     ;;
1549     *)
1550         arch="unknown"
1551     ;;
1552 esac
1553
1554 enable $arch $subarch
1555
1556 # OS specific
1557 case $target_os in
1558     beos|haiku|zeta)
1559         prefix_default="$HOME/config"
1560         # helps building libavcodec
1561         add_cflags -DPIC -fomit-frame-pointer
1562         # 3 gcc releases known for BeOS, each with ugly bugs
1563         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1564         case "$gcc_version" in
1565           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1566             disable mmx
1567             ;;
1568           *20010315*) echo "BeBits gcc"
1569             add_cflags -fno-expensive-optimizations
1570             ;;
1571         esac
1572         SHFLAGS=-nostart
1573         # enable BeOS things
1574         enable audio_beos
1575         # no need for libm, but the inet stuff
1576         # Check for BONE
1577         # XXX: actually should check for NOT net_server
1578         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1579             network_extralibs="-lbind -lsocket"
1580         else
1581             enable beos_netserver
1582             network_extralibs="-lnet"
1583         fi ;;
1584     sunos)
1585         FFSERVERLDFLAGS=""
1586         SHFLAGS='-shared -Wl,-h,$$(@F)'
1587         network_extralibs="-lsocket -lnsl"
1588         add_cflags -D__EXTENSIONS__
1589         ;;
1590     netbsd)
1591         oss_demuxer_extralibs="-lossaudio"
1592         oss_muxer_extralibs="-lossaudio"
1593         ;;
1594     openbsd)
1595         disable need_memalign
1596         LIBOBJFLAGS='$(PIC)'
1597         SHFLAGS='-shared'
1598         oss_demuxer_extralibs="-lossaudio"
1599         oss_muxer_extralibs="-lossaudio"
1600         ;;
1601     freebsd)
1602         disable need_memalign
1603         ;;
1604     bsd/os)
1605         osextralibs="-lpoll -lgnugetopt"
1606         strip="strip -d"
1607         ;;
1608     darwin)
1609         disable need_memalign
1610         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1611         strip="strip -x"
1612         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1613         SLIBSUF=".dylib"
1614         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1615         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1616         FFSERVERLDFLAGS=-Wl,-bind_at_load
1617         objformat="macho"
1618         enabled x86_64 && objformat="macho64"
1619         ;;
1620     mingw32*)
1621         target_os=mingw32
1622         LIBTARGET=i386
1623         if enabled x86_64; then
1624             disable need_memalign
1625             LIBTARGET=x64
1626         fi
1627         shlibdir_default="$bindir_default"
1628         disable ffserver
1629         SLIBPREF=""
1630         SLIBSUF=".dll"
1631         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1632         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1633         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1634         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1635             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1636         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1637         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1638         objformat="win32"
1639         enable dos_paths
1640         check_cflags -fno-common
1641         if ! enabled x86_64; then
1642             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1643                 die "ERROR: MinGW runtime version must be >= 3.15."
1644             enabled_any avisynth vfwcap_demuxer &&
1645                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1646                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1647             fi
1648         ;;
1649     cygwin*)
1650         target_os=cygwin
1651         shlibdir_default="$bindir_default"
1652         SLIBPREF="cyg"
1653         SLIBSUF=".dll"
1654         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1655         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1656         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1657         objformat="win32"
1658         enable dos_paths
1659         check_cflags -fno-common
1660         ;;
1661     *-dos|freedos|opendos)
1662         disable ffplay ffserver
1663         disable $INDEV_LIST $OUTDEV_LIST
1664         network_extralibs="-lsocket"
1665         objformat="coff"
1666         enable dos_paths
1667         ;;
1668     linux)
1669         enable dv1394
1670         ;;
1671     irix*)
1672         target_os=irix
1673         ranlib="echo ignoring ranlib"
1674         ;;
1675     os/2*)
1676         strip="lxlite"
1677         ln_s="cp -f"
1678         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1679         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1680         FFSERVERLDFLAGS=""
1681         LIBSUF="_s.a"
1682         SLIBPREF=""
1683         SLIBSUF=".dll"
1684         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1685         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1686         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1687           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1688           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1689           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1690           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1691           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1692         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1693           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1694         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1695         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1696         enable dos_paths
1697         ;;
1698     gnu/kfreebsd)
1699         ;;
1700
1701     *)
1702         die "Unknown OS '$target_os'."
1703         ;;
1704 esac
1705
1706 set_default $PATHS_LIST
1707
1708 add_extralibs $osextralibs
1709
1710 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1711 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1712
1713 # we need to build at least one lib type
1714 if ! enabled_any static shared; then
1715     cat <<EOF
1716 At least one library type must be built.
1717 Specify --enable-static to build the static libraries or --enable-shared to
1718 build the shared libraries as well. To only build the shared libraries specify
1719 --disable-static in addition to --enable-shared.
1720 EOF
1721     exit 1;
1722 fi
1723
1724 disabled static && LIBNAME=""
1725
1726 if enabled_any libfaad libfaadbin ; then
1727     if check_header faad.h; then
1728         check_cc <<EOF
1729 #include <faad.h>
1730 #ifndef FAAD2_VERSION
1731 ok faad1
1732 #endif
1733 int main(void) { return 0; }
1734 EOF
1735         test $? = 0 && enable libfaad2
1736     else
1737         die "FAAD test failed."
1738     fi
1739 fi
1740
1741
1742 die_license_disabled() {
1743     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
1744 }
1745
1746 die_license_disabled gpl libfaad2
1747 die_license_disabled gpl libx264
1748 die_license_disabled gpl libxvid
1749 die_license_disabled gpl postproc
1750 die_license_disabled gpl x11grab
1751
1752 die_license_disabled nonfree libamr_nb
1753 die_license_disabled nonfree libamr_wb
1754 die_license_disabled nonfree libfaac
1755
1756
1757 check_deps $ARCH_EXT_LIST
1758
1759 test -z "$need_memalign" && need_memalign="$mmx"
1760
1761 #Darwin CC versions
1762 if test $target_os = darwin; then
1763     if enabled xlc; then
1764         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1765     else
1766         add_cflags -pipe
1767         check_cflags -force_cpusubtype_ALL
1768         check_cflags -Wno-sign-compare
1769         enabled shared || check_cflags -mdynamic-no-pic
1770     fi
1771 fi
1772
1773 disabled optimizations || check_cflags -fomit-frame-pointer
1774
1775 # Add processor-specific flags
1776 if test $cpu != "generic"; then
1777     warn_altivec(){
1778         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1779     }
1780     case $cpu in
1781         601|ppc601|PowerPC601)
1782             add_cflags -mcpu=601
1783             warn_altivec enabled PPC601
1784         ;;
1785         603*|ppc603*|PowerPC603*)
1786             add_cflags -mcpu=603
1787             warn_altivec enabled PPC603
1788         ;;
1789         604*|ppc604*|PowerPC604*)
1790             add_cflags -mcpu=604
1791             warn_altivec enabled PPC604
1792         ;;
1793         G3|g3|75*|ppc75*|PowerPC75*)
1794             add_cflags -mcpu=750 -mpowerpc-gfxopt
1795             warn_altivec enabled PPC75x
1796         ;;
1797         G4|g4|745*|ppc745*|PowerPC745*)
1798             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1799             warn_altivec disabled PPC745x
1800         ;;
1801         74*|ppc74*|PowerPC74*)
1802             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1803             warn_altivec disabled PPC74xx
1804         ;;
1805         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1806             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1807             warn_altivec disabled PPC970
1808             enable ppc64
1809         ;;
1810         Cell|CELL|cell)
1811             add_cflags -mcpu=cell
1812             warn_altivec disabled Cell
1813             enable ppc64 ldbrx
1814         ;;
1815         # targets that do NOT support conditional mov (cmov)
1816         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1817             add_cflags -march=$cpu
1818             disable cmov
1819         ;;
1820         # targets that do support conditional mov (cmov)
1821         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1822             add_cflags -march=$cpu
1823             enable cmov
1824             enable fast_cmov
1825         ;;
1826         # targets that do support conditional mov but on which it's slow
1827         pentium4|pentium4m|prescott|nocona)
1828             add_cflags -march=$cpu
1829             enable cmov
1830             disable fast_cmov
1831         ;;
1832         sparc64)
1833             add_cflags -mcpu=v9
1834         ;;
1835         arm11*|cortex*)
1836             add_cflags -mcpu=$cpu
1837             enable fast_unaligned
1838         ;;
1839         armv*)
1840             add_cflags -march=$cpu
1841         ;;
1842         arm*)
1843             add_cflags -mcpu=$cpu
1844         ;;
1845         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1846             enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1847         ;;
1848         bf*)
1849             add_cflags -mcpu=$cpu
1850         ;;
1851         mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1852             add_cflags -march=$cpu
1853         ;;
1854         *)
1855             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1856         ;;
1857     esac
1858 fi
1859
1860 check_cc <<EOF || die "Symbol mangling check failed."
1861 int ff_extern;
1862 EOF
1863 sym=$($nm -P -g $TMPO | grep ff_extern)
1864 extern_prefix=${sym%%ff_extern*}
1865
1866 check_cc <<EOF && enable inline_asm
1867 void foo(void) { __asm__ volatile ("" ::); }
1868 EOF
1869
1870 if enabled x86; then
1871     # check whether EBP is available on x86
1872     # As 'i' is stored on the stack, this program will crash
1873     # if the base pointer is used to access it because the
1874     # base pointer is cleared in the inline assembly code.
1875     check_exec_crash <<EOF && enable ebp_available
1876     volatile int i=0;
1877     __asm__ volatile (
1878         "xorl %%ebp, %%ebp"
1879     ::: "%ebp");
1880     return i;
1881 EOF
1882
1883     # check wether EBX is available on x86
1884     check_asm ebx_available '"":::"%ebx"'
1885
1886     # check whether more than 10 operands are supported
1887     check_cc <<EOF && enable ten_operands
1888 int main(void) {
1889     int x=0;
1890     __asm__ volatile(
1891         ""
1892         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1893     );
1894     return 0;
1895 }
1896 EOF
1897
1898     # check whether binutils is new enough to compile SSSE3/MMX2
1899     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1900     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1901
1902     check_asm bswap '"bswap %%eax" ::: "%eax"'
1903
1904     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1905     enabled     x86_64        && append YASMFLAGS "-m amd64"
1906     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1907     case "$objformat" in
1908         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1909         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1910         *)                    append YASMFLAGS "-DPREFIX"  ;;
1911     esac
1912     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1913 fi
1914
1915 # check for assembler specific support
1916
1917 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1918 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1919 enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
1920
1921 # check for SIMD availability
1922
1923 # AltiVec flags: The FSF version of GCC differs from the Apple version
1924 if enabled altivec; then
1925     check_cflags -maltivec -mabi=altivec &&
1926         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1927         check_cflags -faltivec
1928
1929     # check if our compiler supports Motorola AltiVec C API
1930     check_cc <<EOF || disable altivec
1931 $inc_altivec_h
1932 int main(void) {
1933     vector signed int v1, v2, v3;
1934     v1 = vec_add(v2,v3);
1935     return 0;
1936 }
1937 EOF
1938
1939     # check if our compiler supports braces for vector declarations
1940     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1941 $inc_altivec_h
1942 int main (void) { (vector int) {1}; return 0; }
1943 EOF
1944 fi
1945
1946 # We have to check if pld is a nop and disable it.
1947 enabled arm     && check_asm pld     '"pld [r0]"'
1948 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1949 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1950 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1951 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1952 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1953 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1954 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1955 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1956
1957 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
1958
1959 # ---
1960 # big/little-endian test
1961 check_cc <<EOF || die "endian test failed"
1962 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1963 EOF
1964 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1965
1966 # ---
1967 # check availability of some header files
1968
1969 if check_func dlopen; then
1970     ldl=
1971 elif check_func dlopen -ldl; then
1972     ldl=-ldl
1973 fi
1974
1975 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
1976 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
1977
1978 check_func  fork
1979 check_func  gethrtime
1980 check_func  getrusage
1981 check_func  inet_aton $network_extralibs
1982 check_func  memalign
1983 check_func  mkstemp
1984 check_func  posix_memalign
1985 check_func_headers io.h setmode
1986 check_func_headers lzo/lzo1x.h lzo1x_999_compress
1987 check_func_headers windows.h GetProcessTimes
1988 check_func_headers windows.h VirtualAlloc
1989
1990 check_header conio.h
1991 check_header dlfcn.h
1992 check_header malloc.h
1993 check_header poll.h
1994 check_header sys/mman.h
1995 check_header sys/resource.h
1996 check_header sys/select.h
1997 check_header termios.h
1998 check_header vdpau/vdpau.h
1999 check_header vdpau/vdpau_x11.h
2000 check_header X11/extensions/XvMClib.h
2001
2002 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
2003     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2004 fi
2005
2006 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2007 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2008
2009 # check for some common methods of building with pthread support
2010 # do this before the optional library checks as some of them require pthreads
2011 if enabled pthreads; then
2012     if check_func pthread_create; then
2013         :
2014     elif check_func pthread_create -pthread; then
2015         add_cflags -pthread
2016         add_extralibs -pthread
2017     elif check_func pthread_create -pthreads; then
2018         add_cflags -pthreads
2019         add_extralibs -pthreads
2020     elif check_func pthread_create -lpthreadGC2; then
2021         add_extralibs -lpthreadGC2
2022     elif ! check_lib pthread.h pthread_create -lpthread; then
2023         die "ERROR: can't find pthreads library"
2024     fi
2025 fi
2026
2027 for thread in $THREADS_LIST; do
2028     if enabled $thread; then
2029         test -n "$thread_type" &&
2030             die "ERROR: Only one thread type must be selected." ||
2031             thread_type="$thread"
2032     fi
2033 done
2034
2035 check_lib math.h sin -lm
2036 check_lib va/va.h vaInitialize -lva
2037
2038 # test for C99 functions in math.h
2039 for func in llrint lrint lrintf round roundf truncf; do
2040     check_exec <<EOF && enable $func || disable $func
2041 #include <math.h>
2042 int main(void) { return ($func(3.999f) > 0)?0:1; }
2043 EOF
2044 done
2045
2046 # these are off by default, so fail if requested and not available
2047 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2048 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Decoder_Interface_init -lamrnb -lm
2049 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
2050 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2051                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2052                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2053 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2054 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2055 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2056 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2057 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2058 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2059 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2060                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2061 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2062 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2063 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2064 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2065                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2066                         die "ERROR: libx264 version must be >= 0.65."; }
2067 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2068 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2069
2070 # libdc1394 check
2071 if enabled libdc1394; then
2072     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2073         enable libdc1394_2; } ||
2074     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2075         enable libdc1394_1; } ||
2076     die "ERROR: No version of libdc1394 found "
2077 fi
2078
2079
2080 _restrict=
2081 for restrict_keyword in restrict __restrict__ __restrict; do
2082     check_cc <<EOF && _restrict=$restrict_keyword && break
2083 void foo(char * $restrict_keyword p);
2084 EOF
2085 done
2086
2087 ##########################################
2088 # SDL check
2089
2090 disable sdl_too_old
2091 disable sdl
2092 SDL_CONFIG="${cross_prefix}sdl-config"
2093 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2094     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2095     temp_cflags $sdl_cflags
2096     temp_extralibs $("${SDL_CONFIG}" --libs)
2097     if check_lib2 SDL.h SDL_Init; then
2098         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2099         if test "$_sdlversion" -lt 121 ; then
2100             enable sdl_too_old
2101         else
2102             enable sdl
2103             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2104 #include <SDL.h>
2105 int main(int argc, char **argv){
2106     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2107     int w = vi->current_w;
2108     return 0;
2109 }
2110 EOF
2111         fi
2112     fi
2113     restore_flags
2114 fi
2115
2116 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2117
2118 ##########################################
2119 # Network check
2120
2121 if enabled network; then
2122     check_type "sys/types.h sys/socket.h" socklen_t
2123     # Prefer arpa/inet.h over winsock2
2124     if check_header arpa/inet.h ; then
2125         check_func closesocket
2126     elif check_header winsock2.h ; then
2127         network_extralibs="-lws2_32"
2128         check_type ws2tcpip.h socklen_t
2129         check_func_headers winsock2.h closesocket
2130     fi
2131 fi
2132
2133 ##########################################
2134 # IPv6 check
2135
2136 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2137 #include <sys/types.h>
2138 #include <sys/socket.h>
2139 #include <netinet/in.h>
2140 #include <netdb.h>
2141 int main(void) {
2142     struct sockaddr_storage saddr;
2143     struct ipv6_mreq mreq6;
2144     getaddrinfo(0,0,0,0);
2145     getnameinfo(0,0,0,0,0,0,0);
2146     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2147 }
2148 EOF
2149
2150 check_header linux/videodev.h
2151 check_header linux/videodev2.h
2152 check_header sys/videoio.h
2153
2154 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2155
2156 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2157 { check_header dev/bktr/ioctl_meteor.h &&
2158   check_header dev/bktr/ioctl_bt848.h; } ||
2159 { check_header machine/ioctl_meteor.h &&
2160   check_header machine/ioctl_bt848.h; } ||
2161 { check_header dev/video/meteor/ioctl_meteor.h &&
2162   check_header dev/video/bktr/ioctl_bt848.h; } ||
2163 check_header dev/ic/bt8xx.h
2164
2165 check_header sys/soundcard.h
2166 check_header soundcard.h
2167
2168 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2169
2170 check_lib2 jack/jack.h jack_client_open -ljack
2171
2172 # deal with the X11 frame grabber
2173 enabled x11grab                         &&
2174 check_header X11/Xlib.h                 &&
2175 check_header X11/extensions/XShm.h      &&
2176 check_func XOpenDisplay -lX11           &&
2177 check_func XShmCreateImage -lX11 -lXext
2178
2179 enabled debug && add_cflags -g"$debuglevel"
2180
2181 # add some useful compiler flags if supported
2182 check_cflags -Wdeclaration-after-statement
2183 check_cflags -Wall
2184 check_cflags -Wno-switch
2185 check_cflags -Wdisabled-optimization
2186 check_cflags -Wpointer-arith
2187 check_cflags -Wredundant-decls
2188 check_cflags -Wno-pointer-sign
2189 check_cflags -Wcast-qual
2190 check_cflags -Wwrite-strings
2191 check_cflags -Wtype-limits
2192 check_cflags -Wundef
2193 enabled extra_warnings && check_cflags -Winline
2194
2195 # add some linker flags
2196 check_ldflags -Wl,--warn-common
2197 check_ldflags -Wl,--as-needed
2198 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'
2199 check_ldflags -Wl,-Bsymbolic
2200
2201 if enabled small; then
2202     check_cflags -Os            # not all compilers support -Os
2203     optimizations="small"
2204 elif enabled optimizations; then
2205     if enabled xlc; then
2206         add_cflags  -O5
2207         add_ldflags -O5
2208     elif enabled ccc; then
2209         add_cflags -fast
2210     else
2211         add_cflags -O3
2212     fi
2213 fi
2214 check_cflags -fno-math-errno
2215 check_cflags -fno-signed-zeros
2216
2217 # add some flags for Intel C Compiler
2218 if enabled icc; then
2219     # Just warnings, no remarks
2220     check_cflags -w1
2221     # -wd: Disable following warnings
2222     # 144, 167, 556: -Wno-pointer-sign
2223     # 10006: ignoring unknown option -fno-signed-zeros
2224     # 10156: ignoring option '-W'; no argument required
2225     check_cflags -wd144,167,556,10006,10156
2226     # 11030: Warning unknown option --as-needed
2227     # 10156: ignoring option '-export'; no argument required
2228     check_ldflags -wd10156,11030
2229     # Allow to compile with optimizations
2230     check_ldflags -march=$cpu
2231     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2232     enable ebp_available
2233 elif enabled ccc; then
2234     # disable some annoying warnings
2235     add_cflags -msg_disable cvtu32to64
2236     add_cflags -msg_disable embedcomment
2237     add_cflags -msg_disable needconstext
2238     add_cflags -msg_disable nomainieee
2239     add_cflags -msg_disable ptrmismatch1
2240     add_cflags -msg_disable unreachcode
2241 fi
2242
2243 # PIC flags for shared library objects where they are needed
2244 if enabled shared; then
2245     # LIBOBJFLAGS may have already been set in the OS configuration
2246     if test -z "$LIBOBJFLAGS" ; then
2247         case "${subarch-$arch}" in
2248             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2249         esac
2250     fi
2251 fi
2252
2253 if enabled gprof; then
2254     add_cflags  -p
2255     add_ldflags -p
2256 fi
2257
2258 # Find out if the .align argument is a power of two or not.
2259 check_asm asmalign_pot '".align 3"'
2260
2261 enabled_any $DECODER_LIST      && enable decoders
2262 enabled_any $ENCODER_LIST      && enable encoders
2263 enabled_any $HWACCEL_LIST      && enable hwaccels
2264 enabled_any $BSF_LIST          && enable bsfs
2265 enabled_any $DEMUXER_LIST      && enable demuxers
2266 enabled_any $MUXER_LIST        && enable muxers
2267 enabled_any $FILTER_LIST       && enable filters
2268 enabled_any $INDEV_LIST        && enable demuxers
2269 enabled_any $OUTDEV_LIST       && enable muxers
2270 enabled_any $PROTOCOL_LIST     && enable protocols
2271
2272 enabled_any $THREADS_LIST      && enable threads
2273
2274 check_deps $CONFIG_LIST       \
2275            $CONFIG_EXTRA      \
2276            $HAVE_LIST         \
2277            $DECODER_LIST      \
2278            $ENCODER_LIST      \
2279            $HWACCEL_LIST      \
2280            $PARSER_LIST       \
2281            $BSF_LIST          \
2282            $DEMUXER_LIST      \
2283            $MUXER_LIST        \
2284            $FILTER_LIST       \
2285            $INDEV_LIST        \
2286            $OUTDEV_LIST       \
2287            $PROTOCOL_LIST     \
2288
2289 echo "install prefix            $prefix"
2290 echo "source path               $source_path"
2291 echo "C compiler                $cc"
2292 echo ".align is power-of-two    $asmalign_pot"
2293 echo "ARCH                      $arch ($cpu)"
2294 if test "$build_suffix" != ""; then
2295     echo "build suffix              $build_suffix"
2296 fi
2297 if test "$extra_version" != ""; then
2298     echo "version string suffix     $extra_version"
2299 fi
2300 echo "big-endian                ${bigendian-no}"
2301 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2302 if enabled x86; then
2303     echo "yasm                      ${yasm-no}"
2304     echo "MMX enabled               ${mmx-no}"
2305     echo "MMX2 enabled              ${mmx2-no}"
2306     echo "3DNow! enabled            ${amd3dnow-no}"
2307     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2308     echo "SSE enabled               ${sse-no}"
2309     echo "SSSE3 enabled             ${ssse3-no}"
2310     echo "CMOV enabled              ${cmov-no}"
2311     echo "CMOV is fast              ${fast_cmov-no}"
2312     echo "EBX available             ${ebx_available-no}"
2313     echo "EBP available             ${ebp_available-no}"
2314     echo "10 operands supported     ${ten_operands-no}"
2315 fi
2316 if enabled arm; then
2317     echo "ARMv5TE enabled           ${armv5te-no}"
2318     echo "ARMv6 enabled             ${armv6-no}"
2319     echo "ARMv6T2 enabled           ${armv6t2-no}"
2320     echo "ARM VFP enabled           ${armvfp-no}"
2321     echo "IWMMXT enabled            ${iwmmxt-no}"
2322     echo "NEON enabled              ${neon-no}"
2323 fi
2324 if enabled mips; then
2325     echo "MMI enabled               ${mmi-no}"
2326 fi
2327 if enabled ppc; then
2328     echo "AltiVec enabled           ${altivec-no}"
2329     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2330     echo "dcbzl available           ${dcbzl-no}"
2331     echo "performance report        ${powerpc_perf-no}"
2332 fi
2333 if enabled sparc; then
2334     echo "VIS enabled               ${vis-no}"
2335 fi
2336 echo "gprof enabled             ${gprof-no}"
2337 echo "debug symbols             ${debug-no}"
2338 echo "strip symbols             ${stripping-no}"
2339 echo "optimizations             ${optimizations-no}"
2340 echo "static                    ${static-no}"
2341 echo "shared                    ${shared-no}"
2342 echo "postprocessing support    ${postproc-no}"
2343 echo "new filter support        ${avfilter-no}"
2344 echo "filters using lavformat   ${avfilter_lavf-no}"
2345 echo "network support           ${network-no}"
2346 if enabled network; then
2347     echo "IPv6 support              ${ipv6-no}"
2348 fi
2349 echo "threading support         ${thread_type-no}"
2350 echo "SDL support               ${sdl-no}"
2351 if enabled sdl_too_old; then
2352     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2353 fi
2354 echo "Sun medialib support      ${mlib-no}"
2355 echo "AVISynth enabled          ${avisynth-no}"
2356 echo "libamr-nb support         ${libamr_nb-no}"
2357 echo "libamr-wb support         ${libamr_wb-no}"
2358 echo "libdc1394 support         ${libdc1394-no}"
2359 echo "libdirac enabled          ${libdirac-no}"
2360 echo "libfaac enabled           ${libfaac-no}"
2361 echo "libfaad enabled           ${libfaad-no}"
2362 echo "libfaad dlopened          ${libfaadbin-no}"
2363 echo "libgsm enabled            ${libgsm-no}"
2364 echo "libmp3lame enabled        ${libmp3lame-no}"
2365 echo "libnut enabled            ${libnut-no}"
2366 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2367 echo "libschroedinger enabled   ${libschroedinger-no}"
2368 echo "libspeex enabled          ${libspeex-no}"
2369 echo "libtheora enabled         ${libtheora-no}"
2370 echo "libvorbis enabled         ${libvorbis-no}"
2371 echo "libx264 enabled           ${libx264-no}"
2372 echo "libxvid enabled           ${libxvid-no}"
2373 echo "zlib enabled              ${zlib-no}"
2374 echo "bzlib enabled             ${bzlib-no}"
2375 echo
2376
2377 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2378     echo "Enabled ${type}s:"
2379     eval list=\$$(toupper $type)_LIST
2380     for part in $list; do
2381         enabled $part && echo ${part%_*}
2382     done | sort | pr -3 -t
2383     echo
2384 done
2385
2386 license="LGPL"
2387 if enabled nonfree; then
2388     license="unredistributable"
2389 elif enabled gpl; then
2390     license="GPL"
2391 fi
2392
2393 echo "License: $license"
2394
2395 echo "Creating config.mak and config.h..."
2396
2397 echo "# Automatically generated by configure - do not modify!" > config.mak
2398 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2399 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2400 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2401 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2402 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2403
2404 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2405 echo "prefix=$prefix" >> config.mak
2406 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2407 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2408 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2409 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2410 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2411 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2412 echo "SRC_PATH=\"$source_path\"" >> config.mak
2413 echo "SRC_PATH_BARE=$source_path" >> config.mak
2414 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2415 echo "CC=$cc" >> config.mak
2416 echo "AS=$as" >> config.mak
2417 echo "YASM=$yasmexe" >> config.mak
2418 echo "AR=$ar" >> config.mak
2419 echo "RANLIB=$ranlib" >> config.mak
2420 echo "LN_S=$ln_s" >> config.mak
2421 enabled stripping &&
2422     echo "STRIP=$strip" >> config.mak ||
2423     echo "STRIP=echo ignoring strip" >> config.mak
2424
2425 echo "OPTFLAGS=$CFLAGS" >> config.mak
2426 echo "LDFLAGS=$LDFLAGS" >> config.mak
2427 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2428 echo "SHFLAGS=$SHFLAGS" >> config.mak
2429 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2430 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2431 echo "BUILD_STATIC=$static" >> config.mak
2432 echo "BUILDSUF=$build_suffix" >> config.mak
2433 echo "FULLNAME=$FULLNAME" >> config.mak
2434 echo "LIBPREF=$LIBPREF" >> config.mak
2435 echo "LIBSUF=$LIBSUF" >> config.mak
2436 echo "LIBNAME=$LIBNAME" >> config.mak
2437 echo "SLIBPREF=$SLIBPREF" >> config.mak
2438 echo "SLIBSUF=$SLIBSUF" >> config.mak
2439 echo "EXESUF=$EXESUF" >> config.mak
2440 echo "EXTRA_VERSION=$extra_version" >> config.mak
2441 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2442 echo "HOSTCC=$host_cc" >> config.mak
2443 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2444 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2445 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2446 echo "HOSTLIBS=$host_libs" >> config.mak
2447 echo "TARGET_EXEC=$target_exec" >> config.mak
2448 echo "TARGET_PATH=$target_path" >> config.mak
2449
2450 if enabled bigendian; then
2451     echo "WORDS_BIGENDIAN=yes" >> config.mak
2452     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2453 fi
2454
2455 if enabled sdl; then
2456     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2457     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2458 fi
2459 if enabled texi2html; then
2460     echo "BUILD_DOC=yes" >> config.mak
2461 fi
2462
2463 get_version(){
2464     name=$1
2465     file=$source_path/$2
2466     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2467     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2468     lcname=$(tolower $name)
2469     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2470     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2471 }
2472
2473 get_version LIBSWSCALE  libswscale/swscale.h
2474 get_version LIBPOSTPROC libpostproc/postprocess.h
2475 get_version LIBAVCODEC  libavcodec/avcodec.h
2476 get_version LIBAVDEVICE libavdevice/avdevice.h
2477 get_version LIBAVFORMAT libavformat/avformat.h
2478 get_version LIBAVUTIL   libavutil/avutil.h
2479 get_version LIBAVFILTER libavfilter/avfilter.h
2480
2481 if enabled shared; then
2482     echo "BUILD_SHARED=yes" >> config.mak
2483     echo "PIC=-fPIC -DPIC" >> config.mak
2484     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2485     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2486     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2487     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2488     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2489     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2490     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2491     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2492 fi
2493 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2494 echo "EXTRALIBS=$extralibs" >> config.mak
2495
2496 echo "ARCH=$arch" >> config.mak
2497
2498 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2499 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2500 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2501                                       $CONFIG_EXTRA      \
2502                                       $DECODER_LIST      \
2503                                       $ENCODER_LIST      \
2504                                       $HWACCEL_LIST      \
2505                                       $PARSER_LIST       \
2506                                       $BSF_LIST          \
2507                                       $DEMUXER_LIST      \
2508                                       $MUXER_LIST        \
2509                                       $FILTER_LIST       \
2510                                       $PROTOCOL_LIST     \
2511                                       $INDEV_LIST        \
2512                                       $OUTDEV_LIST       \
2513
2514 echo "#define restrict $_restrict" >> $TMPH
2515
2516 if enabled small; then
2517     echo "#define av_always_inline"  >> $TMPH
2518 fi
2519
2520
2521 # Apparently it's not possible to portably echo a backslash.
2522 enabled asmalign_pot &&
2523     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2524     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2525
2526 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2527
2528 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2529
2530 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2531 cmp -s $TMPH config.h &&
2532     echo "config.h is unchanged" ||
2533     mv -f $TMPH config.h
2534
2535 # build tree in object directory if source path is different from current one
2536 if enabled source_path_used; then
2537     DIRS="\
2538         doc               \
2539         libavcodec        \
2540         libavcodec/alpha  \
2541         libavcodec/arm    \
2542         libavcodec/bfin   \
2543         libavcodec/mlib   \
2544         libavcodec/ppc    \
2545         libavcodec/sh4    \
2546         libavcodec/sparc  \
2547         libavcodec/x86    \
2548         libavdevice       \
2549         libavfilter       \
2550         libavformat       \
2551         libavutil         \
2552         libpostproc       \
2553         libswscale        \
2554         libswscale/bfin   \
2555         libswscale/mlib   \
2556         libswscale/ppc    \
2557         libswscale/sparc  \
2558         libswscale/x86    \
2559         tests             \
2560         tools             \
2561         "
2562     FILES="\
2563         Makefile             \
2564         common.mak           \
2565         subdir.mak           \
2566         doc/texi2pod.pl      \
2567         libavcodec/Makefile  \
2568         libavdevice/Makefile \
2569         libavfilter/Makefile \
2570         libavformat/Makefile \
2571         libavutil/Makefile   \
2572         libpostproc/Makefile \
2573         libswscale/Makefile  \
2574         "
2575     for dir in $DIRS ; do
2576         mkdir -p $dir
2577     done
2578     for f in $FILES ; do
2579         $ln_s "$source_path/$f" $f
2580     done
2581 fi
2582
2583
2584 # build pkg-config files
2585
2586 pkgconfig_generate(){
2587 name=$1
2588 shortname=${name#lib}${build_suffix}
2589 comment=$2
2590 version=$3
2591 libs=$4
2592 requires=$5
2593 cat <<EOF > $name/$name.pc
2594 prefix=$prefix
2595 exec_prefix=\${prefix}
2596 libdir=$libdir
2597 includedir=$incdir
2598
2599 Name: $name
2600 Description: $comment
2601 Version: $version
2602 Requires: $(disabled shared && echo $requires)
2603 Requires.private: $(enabled shared && echo $requires)
2604 Conflicts:
2605 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2606 Libs.private: $(enabled shared && echo $libs)
2607 Cflags: -I\${includedir}
2608 EOF
2609 cat <<EOF > $name/$name-uninstalled.pc
2610 prefix=
2611 exec_prefix=
2612 libdir=\${pcfiledir}
2613 includedir=${source_path}
2614
2615 Name: $name
2616 Description: $comment
2617 Version: $version
2618 Requires: $requires
2619 Conflicts:
2620 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2621 Cflags: -I\${includedir}
2622 EOF
2623 }
2624
2625 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2626 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2627 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2628 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2629 enabled avfilter &&
2630     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2631 enabled postproc &&
2632     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2633 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"