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-version3        upgrade (L)GPL to version 3 [no]"
  79   echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  80   echo "                           and binaries will be unredistributable [no]"
  81   echo "  --disable-ffmpeg         disable ffmpeg build"
  82   echo "  --disable-ffplay         disable ffplay build"
  83   echo "  --disable-ffserver       disable ffserver build"
  84   echo "  --enable-postproc        enable GPLed postprocessing support [no]"
  85   echo "  --enable-avfilter        video filter support [no]"
  86   echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  87   echo "  --enable-beosthreads     use BeOS threads [no]"
  88   echo "  --enable-os2threads      use OS/2 threads [no]"
  89   echo "  --enable-pthreads        use pthreads [no]"
  90   echo "  --enable-w32threads      use Win32 threads [no]"
  91   echo "  --enable-x11grab         enable X11 grabbing [no]"
  92   echo "  --disable-network        disable network support [no]"
  93   echo "  --disable-ipv6           disable IPv6 support [no]"
  94   echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  95   echo "  --enable-gray            enable full grayscale support (slower color)"
  96   echo "  --disable-swscale-alpha  disable alpha channel support in swscale"
  97   echo "  --disable-fastdiv        disable table-based division"
  98   echo "  --enable-small           optimize for size instead of speed"
  99   echo "  --disable-aandct         disable AAN DCT code"
 100   echo "  --disable-fft            disable FFT code"
 101   echo "  --disable-golomb         disable Golomb code"
 102   echo "  --disable-mdct           disable MDCT code"
 103   echo "  --disable-rdft           disable RDFT code"
 104   echo "  --disable-vaapi          disable VAAPI code"
 105   echo "  --disable-vdpau          disable VDPAU code"
 106   echo "  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
 107   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 108   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 109   echo "  --enable-beos-netserver  enable BeOS netserver"
 110   echo "  --disable-encoder=NAME   disable encoder NAME"
 111   echo "  --enable-encoder=NAME    enable encoder NAME"
 112   echo "  --disable-encoders       disable all encoders"
 113   echo "  --disable-decoder=NAME   disable decoder NAME"
 114   echo "  --enable-decoder=NAME    enable decoder NAME"
 115   echo "  --disable-decoders       disable all decoders"
 116   echo "  --disable-hwaccel=NAME   disable hwaccel NAME"
 117   echo "  --enable-hwaccel=NAME    enable hwaccel NAME"
 118   echo "  --disable-hwaccels       disable all hwaccels"
 119   echo "  --disable-muxer=NAME     disable muxer NAME"
 120   echo "  --enable-muxer=NAME      enable muxer NAME"
 121   echo "  --disable-muxers         disable all muxers"
 122   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 123   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 124   echo "  --disable-demuxers       disable all demuxers"
 125   echo "  --enable-parser=NAME     enable parser NAME"
 126   echo "  --disable-parser=NAME    disable parser NAME"
 127   echo "  --disable-parsers        disable all parsers"
 128   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 129   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 130   echo "  --disable-bsfs           disable all bitstream filters"
 131   echo "  --enable-protocol=NAME   enable protocol NAME"
 132   echo "  --disable-protocol=NAME  disable protocol NAME"
 133   echo "  --disable-protocols      disable all protocols"
 134   echo "  --disable-indevs         disable input devices"
 135   echo "  --disable-outdevs        disable output devices"
 136   echo "  --disable-devices        disable all devices"
 137   echo "  --enable-filter=NAME     enable filter NAME"
 138   echo "  --disable-filter=NAME    disable filter NAME"
 139   echo "  --disable-filters        disable all filters"
 140   echo "  --list-decoders          show all available decoders"
 141   echo "  --list-encoders          show all available encoders"
 142   echo "  --list-hwaccels          show all available hardware accelerators"
 143   echo "  --list-muxers            show all available muxers"
 144   echo "  --list-demuxers          show all available demuxers"
 145   echo "  --list-parsers           show all available parsers"
 146   echo "  --list-protocols         show all available protocols"
 147   echo "  --list-bsfs              show all available bitstream filters"
 148   echo "  --list-indevs            show all available input devices"
 149   echo "  --list-outdevs           show all available output devices"
 150   echo "  --list-filters           show all available filters"
 151   echo
 152   echo "External library support:"
 153   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 154   echo "  --enable-bzlib           enable bzlib [autodetect]"
 155   echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
 156   echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
 157   echo "  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]"
 158   echo "  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]"
 159   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
 160   echo "                           and libraw1394 [no]"
 161   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
 162   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 163   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 164   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 165   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 166   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 167   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 168   echo "                           native (de)muxer exists [no]"
 169   echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
 170   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 171   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 172   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 173   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 174   echo "                           native implementation exists [no]"
 175   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 176   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 177   echo "                           native MPEG-4/Xvid encoder exists [no]"
 178   echo "  --enable-mlib            enable Sun medialib [no]"
 179   echo "  --enable-zlib            enable zlib [autodetect]"
 180   echo ""
 181   echo "Advanced options (experts only):"
 182   echo "  --source-path=PATH       path to source code [$source_path]"
 183   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 184   echo "  --enable-cross-compile   assume a cross-compiler is used"
 185   echo "  --sysroot=PATH           root of cross-build tree"
 186   echo "  --sysinclude=PATH        location of cross-build system headers"
 187   echo "  --target-os=OS           compiler targets OS [$target_os]"
 188   echo "  --target-exec=CMD        command to run executables on target"
 189   echo "  --target-path=DIR        path to view of build directory on target"
 190   echo "  --nm=NM                  use nm tool"
 191   echo "  --as=AS                  use assembler AS [$as_default]"
 192   echo "  --cc=CC                  use C compiler CC [$cc_default]"
 193   echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
 194   echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
 195   echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
 196   echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
 197   echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
 198   echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
 199   echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
 200   echo "  --extra-version=STRING   version string suffix []"
 201   echo "  --build-suffix=SUFFIX    library name suffix []"
 202   echo "  --arch=ARCH              select architecture [$arch]"
 203   echo "  --cpu=CPU                select the minimum required CPU (affects"
 204   echo "                           instruction selection, may crash on older CPUs)"
 205   echo "  --enable-powerpc-perf    enable performance report on PPC"
 206   echo "                           (requires enabling PMC)"
 207   echo "  --disable-altivec        disable AltiVec optimizations"
 208   echo "  --disable-amd3dnow       disable 3DNow! optimizations"
 209   echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
 210   echo "  --disable-mmx            disable MMX optimizations"
 211   echo "  --disable-mmx2           disable MMX2 optimizations"
 212   echo "  --disable-sse            disable SSE optimizations"
 213   echo "  --disable-ssse3          disable SSSE3 optimizations"
 214   echo "  --disable-armv5te        disable armv5te optimizations"
 215   echo "  --disable-armv6          disable armv6 optimizations"
 216   echo "  --disable-armv6t2        disable armv6t2 optimizations"
 217   echo "  --disable-armvfp         disable ARM VFP optimizations"
 218   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 219   echo "  --disable-mmi            disable MMI optimizations"
 220   echo "  --disable-neon           disable neon optimizations"
 221   echo "  --disable-vis            disable VIS optimizations"
 222   echo "  --disable-yasm           disable use of yasm assembler"
 223   echo
 224   echo "Developer options (useful when working on FFmpeg itself):"
 225   echo "  --disable-debug          disable debugging symbols"
 226   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 227   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 228   echo "  --disable-optimizations  disable compiler optimizations"
 229   echo "  --enable-extra-warnings  enable more compiler warnings"
 230   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 231   echo ""
 232   echo "NOTE: Object files are built at the place where configure is launched."
 233   exit 0
 234 }
 235
 236 log(){
 237     echo "$@" >> $logfile
 238 }
 239
 240 log_file(){
 241     log BEGIN $1
 242     pr -n -t $1 >> $logfile
 243     log END $1
 244 }
 245
 246 echolog(){
 247     log "$@"
 248     echo "$@"
 249 }
 250
 251 die(){
 252     echolog "$@"
 253     cat <<EOF
 254
 255 If you think configure made a mistake, make sure you are using the latest
 256 version from SVN.  If the latest version fails, report the problem to the
 257 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 258 EOF
 259     if disabled logging; then
 260         cat <<EOF
 261 Rerun configure with logging enabled (do not use --disable-logging), and
 262 include the log this produces with your report.
 263 EOF
 264     else
 265 cat <<EOF
 266 Include the log file "$logfile" produced by configure as this will help
 267 solving the problem.
 268 EOF
 269     fi
 270     exit 1
 271 }
 272
 273 # Avoid locale weirdness, besides we really just want to translate ASCII.
 274 toupper(){
 275     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 276 }
 277
 278 tolower(){
 279     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 280 }
 281
 282 c_escape(){
 283     echo "$*" | sed 's/["\\]/\\\0/g'
 284 }
 285
 286 sh_quote(){
 287     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 288     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
 289     echo "$v"
 290 }
 291
 292 set_all(){
 293     value=$1
 294     shift
 295     for var in $*; do
 296         eval $var=$value
 297     done
 298 }
 299
 300 set_weak(){
 301     value=$1
 302     shift
 303     for var; do
 304         eval : \${$var:=$value}
 305     done
 306 }
 307
 308 pushvar(){
 309     for var in $*; do
 310         eval level=\${${var}_level:=0}
 311         eval ${var}_${level}="\$$var"
 312         eval ${var}_level=$(($level+1))
 313     done
 314 }
 315
 316 popvar(){
 317     for var in $*; do
 318         eval level=\${${var}_level:-0}
 319         test $level = 0 && continue
 320         eval level=$(($level-1))
 321         eval $var="\${${var}_${level}}"
 322         eval ${var}_level=$level
 323         eval unset ${var}_${level}
 324     done
 325 }
 326
 327 enable(){
 328     set_all yes $*
 329 }
 330
 331 disable(){
 332     set_all no $*
 333 }
 334
 335 enable_weak(){
 336     set_weak yes $*
 337 }
 338
 339 disable_weak(){
 340     set_weak no $*
 341 }
 342
 343 enable_safe(){
 344     enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 345 }
 346
 347 disable_safe(){
 348     disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 349 }
 350
 351 do_enable_deep(){
 352     for var; do
 353         enabled $var && continue
 354         eval sel="\$${var}_select"
 355         eval sgs="\$${var}_suggest"
 356         pushvar var sgs
 357         enable_deep $sel
 358         popvar sgs
 359         enable_deep_weak $sgs
 360         popvar var
 361     done
 362 }
 363
 364 enable_deep(){
 365     do_enable_deep $*
 366     enable $*
 367 }
 368
 369 enable_deep_weak(){
 370     do_enable_deep $*
 371     enable_weak $*
 372 }
 373
 374 enabled(){
 375     test "${1#!}" = "$1" && op== || op=!=
 376     eval test "x\$${1#!}" $op "xyes"
 377 }
 378
 379 disabled(){
 380     test "${1#!}" = "$1" && op== || op=!=
 381     eval test "x\$${1#!}" $op "xno"
 382 }
 383
 384 enabled_all(){
 385     for opt; do
 386         enabled $opt || return 1
 387     done
 388 }
 389
 390 disabled_all(){
 391     for opt; do
 392         disabled $opt || return 1
 393     done
 394 }
 395
 396 enabled_any(){
 397     for opt; do
 398         enabled $opt && return 0
 399     done
 400 }
 401
 402 disabled_any(){
 403     for opt; do
 404         disabled $opt && return 0
 405     done
 406     return 1
 407 }
 408
 409 set_default(){
 410     for opt; do
 411         eval : \${$opt:=\$${opt}_default}
 412     done
 413 }
 414
 415 is_in(){
 416     value=$1
 417     shift
 418     for var in $*; do
 419         [ $var = $value ] && return 0
 420     done
 421     return 1
 422 }
 423
 424 check_deps(){
 425     for cfg; do
 426         cfg="${cfg#!}"
 427         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 428         disabled ${cfg}_checking && continue
 429         enable ${cfg}_checking
 430
 431         eval dep_all="\$${cfg}_deps"
 432         eval dep_any="\$${cfg}_deps_any"
 433         eval dep_sel="\$${cfg}_select"
 434         eval dep_sgs="\$${cfg}_suggest"
 435
 436         pushvar cfg dep_all dep_any dep_sel dep_sgs
 437         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 438         popvar cfg dep_all dep_any dep_sel dep_sgs
 439
 440         enabled_all  $dep_all || disable $cfg
 441         enabled_any  $dep_any || disable $cfg
 442         disabled_any $dep_sel && disable $cfg
 443
 444         if enabled $cfg; then
 445             eval dep_extralibs="\$${cfg}_extralibs"
 446             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 447             enable_deep $dep_sel
 448             enable_deep_weak $dep_sgs
 449         fi
 450
 451         disable ${cfg}_checking
 452     done
 453 }
 454
 455 print_config(){
 456     pfx=$1
 457     header=$2
 458     makefile=$3
 459     shift 3
 460     for cfg; do
 461         ucname="$(toupper $cfg)"
 462         if enabled $cfg; then
 463             echo "#define ${pfx}${ucname} 1" >> $header
 464             echo "${pfx}${ucname}=yes" >> $makefile
 465         else
 466             echo "#define ${pfx}${ucname} 0" >> $header
 467         fi
 468     done
 469 }
 470
 471 flags_saved(){
 472     (: ${SAVE_CFLAGS?}) 2> /dev/null
 473 }
 474
 475 save_flags(){
 476     flags_saved && return
 477     SAVE_CFLAGS="$CFLAGS"
 478     SAVE_LDFLAGS="$LDFLAGS"
 479     SAVE_extralibs="$extralibs"
 480 }
 481
 482 restore_flags(){
 483     flags_saved || return
 484     CFLAGS="$SAVE_CFLAGS"
 485     LDFLAGS="$SAVE_LDFLAGS"
 486     extralibs="$SAVE_extralibs"
 487     unset SAVE_CFLAGS
 488     unset SAVE_LDFLAGS
 489     unset SAVE_extralibs
 490 }
 491
 492 temp_cflags(){
 493     save_flags
 494     CFLAGS="$CFLAGS $*"
 495 }
 496
 497 temp_ldflags(){
 498     save_flags
 499     LDFLAGS="$LDFLAGS $*"
 500 }
 501
 502 temp_extralibs(){
 503     save_flags
 504     extralibs="$extralibs $*"
 505 }
 506
 507 append(){
 508     var=$1
 509     shift
 510     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 511     eval "$var=\"\$$var $*\""
 512 }
 513
 514 add_cflags(){
 515     append CFLAGS "$@"
 516 }
 517
 518 add_ldflags(){
 519     append LDFLAGS "$@"
 520 }
 521
 522 add_extralibs(){
 523     append extralibs "$@"
 524 }
 525
 526 check_cmd(){
 527     log "$@"
 528     "$@" >> $logfile 2>&1
 529 }
 530
 531 check_cc(){
 532     log check_cc "$@"
 533     cat > $TMPC
 534     log_file $TMPC
 535     check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
 536 }
 537
 538 check_cpp(){
 539     log check_cpp "$@"
 540     cat > $TMPC
 541     log_file $TMPC
 542     check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
 543 }
 544
 545 check_as(){
 546     log check_as "$@"
 547     cat > $TMPC
 548     log_file $TMPC
 549     check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
 550 }
 551
 552 check_asm(){
 553     log check_asm "$@"
 554     name="$1"
 555     asm="$2"
 556     shift 2
 557     check_as "$@" <<EOF && enable $name || disable $name
 558 void foo(void){ __asm__ volatile($asm); }
 559 EOF
 560 }
 561
 562 check_yasm(){
 563     log check_yasm "$@"
 564     echo "$1" > $TMPS
 565     log_file $TMPS
 566     shift 1
 567     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 568 }
 569
 570 check_ld(){
 571     log check_ld "$@"
 572     check_cc || return
 573     flags=''
 574     libs=''
 575     for f; do
 576         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 577     done
 578     check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 579 }
 580
 581 check_cflags(){
 582     log check_cflags "$@"
 583     check_cc "$@" <<EOF && add_cflags "$@"
 584 int x;
 585 EOF
 586 }
 587
 588 check_ldflags(){
 589     log check_ldflags "$@"
 590     check_ld "$@" <<EOF && add_ldflags "$@"
 591 int main(void){ return 0; }
 592 EOF
 593 }
 594
 595 check_header(){
 596     log check_header "$@"
 597     header=$1
 598     shift
 599     disable_safe $header
 600     check_cpp "$@" <<EOF && enable_safe $header
 601 #include <$header>
 602 int x;
 603 EOF
 604 }
 605
 606 check_func(){
 607     log check_func "$@"
 608     func=$1
 609     shift
 610     disable $func
 611     check_ld "$@" <<EOF && enable $func
 612 extern int $func();
 613 int main(void){ $func(); }
 614 EOF
 615 }
 616
 617 check_func_headers(){
 618     log check_func_headers "$@"
 619     headers=$1
 620     func=$2
 621     shift 2
 622     disable $func
 623     incs=""
 624     for hdr in $headers; do
 625         incs="$incs
 626 #include <$hdr>"
 627     done
 628     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 629 $incs
 630 int main(int argc, char **argv){
 631     (void) $func;
 632     return 0;
 633 }
 634 EOF
 635 }
 636
 637 check_cpp_condition(){
 638     log check_cpp_condition "$@"
 639     header=$1
 640     condition=$2
 641     check_cpp <<EOF
 642 #include <$header>
 643 #if !($condition)
 644 #error "unsatisfied condition: $condition"
 645 #endif
 646 EOF
 647 }
 648
 649 check_lib(){
 650     log check_lib "$@"
 651     header="$1"
 652     func="$2"
 653     shift 2
 654     temp_extralibs "$@"
 655     check_header $header && check_func $func && add_extralibs "$@"
 656     err=$?
 657     restore_flags
 658     return $err
 659 }
 660
 661 check_lib2(){
 662     log check_lib2 "$@"
 663     headers="$1"
 664     func="$2"
 665     shift 2
 666     temp_extralibs "$@"
 667     check_func_headers "$headers" $func && add_extralibs "$@"
 668     err=$?
 669     restore_flags
 670     return $err
 671 }
 672
 673 check_exec(){
 674     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 675 }
 676
 677 check_exec_crash(){
 678     code=$(cat)
 679
 680     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 681     # are safe but may not be available everywhere.  Thus we use
 682     # raise(SIGTERM) instead.  The check is run in a subshell so we
 683     # can redirect the "Terminated" message from the shell.  SIGBUS
 684     # is not defined by standard C so it is used conditionally.
 685
 686     (check_exec "$@") >> $logfile 2>&1 <<EOF
 687 #include <signal.h>
 688 static void sighandler(int sig){
 689     raise(SIGTERM);
 690 }
 691 int main(void){
 692     signal(SIGILL, sighandler);
 693     signal(SIGFPE, sighandler);
 694     signal(SIGSEGV, sighandler);
 695 #ifdef SIGBUS
 696     signal(SIGBUS, sighandler);
 697 #endif
 698     { $code }
 699 }
 700 EOF
 701 }
 702
 703 check_type(){
 704     log check_type "$@"
 705     headers=$1
 706     type=$2
 707     shift 2
 708     disable $type
 709     incs=""
 710     for hdr in $headers; do
 711         incs="$incs
 712 #include <$hdr>"
 713     done
 714     check_cc "$@" <<EOF && enable $type
 715 $incs
 716 $type v;
 717 EOF
 718 }
 719
 720 require(){
 721     name="$1"
 722     header="$2"
 723     func="$3"
 724     shift 3
 725     check_lib $header $func "$@" || die "ERROR: $name not found"
 726 }
 727
 728 require2(){
 729     name="$1"
 730     headers="$2"
 731     func="$3"
 732     shift 3
 733     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 734 }
 735
 736 check_foo_config(){
 737     cfg=$1
 738     pkg=$2
 739     header=$3
 740     func=$4
 741     shift 4
 742     disable $cfg
 743     check_cmd ${pkg}-config --version
 744     err=$?
 745     if test "$err" = 0; then
 746         temp_cflags $(${pkg}-config --cflags)
 747         temp_extralibs $(${pkg}-config --libs)
 748         check_lib "$@" $header $func && enable $cfg
 749     fi
 750     return $err
 751 }
 752
 753 apply(){
 754     file=$1
 755     shift
 756     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 757 }
 758
 759 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 760 # system-dependent things.
 761
 762 COMPONENT_LIST="
 763     bsfs
 764     decoders
 765     demuxers
 766     encoders
 767     filters
 768     hwaccels
 769     indevs
 770     muxers
 771     outdevs
 772     parsers
 773     protocols
 774 "
 775
 776 CONFIG_LIST="
 777     $COMPONENT_LIST
 778     aandct
 779     avfilter
 780     avfilter_lavf
 781     avisynth
 782     beos_netserver
 783     bzlib
 784     fastdiv
 785     ffmpeg
 786     ffplay
 787     ffserver
 788     fft
 789     golomb
 790     gpl
 791     gprof
 792     gray
 793     hardcoded_tables
 794     ipv6
 795     libamr_nb
 796     libamr_wb
 797     libdc1394
 798     libdirac
 799     libfaac
 800     libfaad
 801     libfaadbin
 802     libgsm
 803     libmp3lame
 804     libnut
 805     libopencore_amrnb
 806     libopencore_amrwb
 807     libopenjpeg
 808     libschroedinger
 809     libspeex
 810     libtheora
 811     libvorbis
 812     libx264
 813     libxvid
 814     mdct
 815     memalign_hack
 816     mlib
 817     mpegaudio_hp
 818     network
 819     nonfree
 820     postproc
 821     powerpc_perf
 822     rdft
 823     runtime_cpudetect
 824     shared
 825     small
 826     static
 827     swscale_alpha
 828     vaapi
 829     vdpau
 830     version3
 831     x11grab
 832     zlib
 833 "
 834
 835 THREADS_LIST='
 836     beosthreads
 837     os2threads
 838     pthreads
 839     w32threads
 840 '
 841
 842 ARCH_LIST='
 843     alpha
 844     arm
 845     bfin
 846     ia64
 847     m68k
 848     mips
 849     mips64
 850     parisc
 851     ppc
 852     ppc64
 853     s390
 854     sh4
 855     sparc
 856     sparc64
 857     x86
 858     x86_32
 859     x86_64
 860 '
 861
 862 ARCH_EXT_LIST='
 863     altivec
 864     amd3dnow
 865     amd3dnowext
 866     armv5te
 867     armv6
 868     armv6t2
 869     armvfp
 870     iwmmxt
 871     mmi
 872     mmx
 873     mmx2
 874     neon
 875     ppc4xx
 876     sse
 877     ssse3
 878     vis
 879 '
 880
 881 HAVE_LIST="
 882     $ARCH_EXT_LIST
 883     $THREADS_LIST
 884     alsa_asoundlib_h
 885     altivec_h
 886     arpa_inet_h
 887     bigendian
 888     bswap
 889     closesocket
 890     cmov
 891     conio_h
 892     dcbzl
 893     dev_bktr_ioctl_bt848_h
 894     dev_bktr_ioctl_meteor_h
 895     dev_ic_bt8xx_h
 896     dev_video_meteor_ioctl_meteor_h
 897     dev_video_bktr_ioctl_bt848_h
 898     dlfcn_h
 899     dlopen
 900     dos_paths
 901     ebp_available
 902     ebx_available
 903     fast_64bit
 904     fast_cmov
 905     fast_unaligned
 906     fork
 907     gethrtime
 908     GetProcessTimes
 909     getrusage
 910     inet_aton
 911     inline_asm
 912     ldbrx
 913     libdc1394_1
 914     libdc1394_2
 915     llrint
 916     loongson
 917     lrint
 918     lrintf
 919     lzo1x_999_compress
 920     machine_ioctl_bt848_h
 921     machine_ioctl_meteor_h
 922     malloc_h
 923     memalign
 924     mkstemp
 925     pld
 926     posix_memalign
 927     round
 928     roundf
 929     sdl
 930     sdl_video_size
 931     setmode
 932     socklen_t
 933     soundcard_h
 934     poll_h
 935     sys_mman_h
 936     sys_resource_h
 937     sys_select_h
 938     sys_soundcard_h
 939     sys_videoio_h
 940     ten_operands
 941     termios_h
 942     threads
 943     truncf
 944     VirtualAlloc
 945     winsock2_h
 946     xform_asm
 947     yasm
 948 "
 949
 950 # options emitted with CONFIG_ prefix but not available on command line
 951 CONFIG_EXTRA="
 952     gplv3
 953     lgplv3
 954 "
 955
 956 CMDLINE_SELECT="
 957     $ARCH_EXT_LIST
 958     $CONFIG_LIST
 959     $THREADS_LIST
 960     cross_compile
 961     debug
 962     extra_warnings
 963     logging
 964     optimizations
 965     stripping
 966     yasm
 967 "
 968
 969 PATHS_LIST='
 970     bindir
 971     datadir
 972     incdir
 973     libdir
 974     mandir
 975     prefix
 976     shlibdir
 977 '
 978
 979 CMDLINE_SET="
 980     $PATHS_LIST
 981     arch
 982     as
 983     build_suffix
 984     cc
 985     cpu
 986     cross_prefix
 987     extra_version
 988     host_cc
 989     host_cflags
 990     host_ldflags
 991     host_libs
 992     host_os
 993     logfile
 994     nm
 995     source_path
 996     sysinclude
 997     sysroot
 998     target_exec
 999     target_os
1000     target_path
1001 "
1002
1003 # code dependency declarations
1004
1005 # architecture extensions
1006 altivec_deps="ppc"
1007 amd3dnow_deps="mmx"
1008 amd3dnowext_deps="amd3dnow"
1009 armv5te_deps="arm"
1010 armv6_deps="arm"
1011 armv6t2_deps="arm"
1012 armvfp_deps="arm"
1013 iwmmxt_deps="arm"
1014 mmi_deps="mips"
1015 mmx_deps="x86"
1016 mmx2_deps="mmx"
1017 neon_deps="arm"
1018 ppc4xx_deps="ppc"
1019 sse_deps="mmx"
1020 ssse3_deps="sse"
1021 vis_deps="sparc"
1022
1023 # decoders / encoders / hardware accelerators
1024 aac_decoder_select="fft mdct"
1025 ac3_decoder_select="fft mdct"
1026 atrac3_decoder_select="fft mdct"
1027 cavs_decoder_select="golomb"
1028 cook_decoder_select="fft mdct"
1029 cscd_decoder_suggest="zlib"
1030 dca_decoder_select="fft mdct"
1031 dnxhd_encoder_select="aandct"
1032 dxa_decoder_select="zlib"
1033 eac3_decoder_select="fft mdct"
1034 eatgq_decoder_select="aandct"
1035 eatqi_decoder_select="aandct"
1036 ffv1_decoder_select="golomb"
1037 flac_decoder_select="golomb"
1038 flac_encoder_select="golomb"
1039 flashsv_decoder_select="zlib"
1040 flashsv_encoder_select="zlib"
1041 flv_encoder_select="aandct"
1042 h261_encoder_select="aandct"
1043 h263_encoder_select="aandct"
1044 h263_vaapi_hwaccel_deps="va_va_h"
1045 h263_vaapi_hwaccel_select="vaapi"
1046 h263p_encoder_select="aandct"
1047 h264_decoder_select="golomb"
1048 h264_vaapi_hwaccel_deps="va_va_h"
1049 h264_vaapi_hwaccel_select="vaapi"
1050 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1051 h264_vdpau_decoder_select="vdpau"
1052 imc_decoder_select="fft mdct"
1053 jpegls_decoder_select="golomb"
1054 jpegls_encoder_select="golomb"
1055 ljpeg_encoder_select="aandct"
1056 loco_decoder_select="golomb"
1057 mjpeg_encoder_select="aandct"
1058 mpeg1video_encoder_select="aandct"
1059 mpeg2video_encoder_select="aandct"
1060 mpeg4_encoder_select="aandct"
1061 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1062 mpeg_vdpau_decoder_select="vdpau"
1063 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1064 mpeg1_vdpau_decoder_select="vdpau"
1065 mpeg2_vaapi_hwaccel_deps="va_va_h"
1066 mpeg2_vaapi_hwaccel_select="vaapi"
1067 mpeg4_vaapi_hwaccel_deps="va_va_h"
1068 mpeg4_vaapi_hwaccel_select="vaapi"
1069 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1070 msmpeg4v1_encoder_select="aandct"
1071 msmpeg4v2_encoder_select="aandct"
1072 msmpeg4v3_encoder_select="aandct"
1073 nellymoser_decoder_select="fft mdct"
1074 nellymoser_encoder_select="fft mdct"
1075 png_decoder_select="zlib"
1076 png_encoder_select="zlib"
1077 qdm2_decoder_select="fft mdct rdft"
1078 rv10_encoder_select="aandct"
1079 rv20_encoder_select="aandct"
1080 rv30_decoder_select="golomb"
1081 rv40_decoder_select="golomb"
1082 shorten_decoder_select="golomb"
1083 sonic_decoder_select="golomb"
1084 sonic_encoder_select="golomb"
1085 sonic_ls_encoder_select="golomb"
1086 svq3_decoder_select="golomb"
1087 svq3_decoder_suggest="zlib"
1088 tiff_decoder_suggest="zlib"
1089 tiff_encoder_suggest="zlib"
1090 tscc_decoder_select="zlib"
1091 vc1_vaapi_hwaccel_deps="va_va_h"
1092 vc1_vaapi_hwaccel_select="vaapi"
1093 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1094 vc1_vdpau_decoder_select="vdpau"
1095 vorbis_decoder_select="fft mdct"
1096 vorbis_encoder_select="fft mdct"
1097 wmav1_decoder_select="fft mdct"
1098 wmav1_encoder_select="fft mdct"
1099 wmav2_decoder_select="fft mdct"
1100 wmav2_encoder_select="fft mdct"
1101 wmv1_encoder_select="aandct"
1102 wmv2_encoder_select="aandct"
1103 wmv3_vaapi_hwaccel_deps="va_va_h"
1104 wmv3_vaapi_hwaccel_select="vaapi"
1105 wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1106 wmv3_vdpau_decoder_select="vdpau"
1107 zlib_decoder_select="zlib"
1108 zlib_encoder_select="zlib"
1109 zmbv_decoder_select="zlib"
1110 zmbv_encoder_select="zlib"
1111
1112 # parsers
1113 h264_parser_select="golomb"
1114
1115 # external libraries
1116 libamr_nb_decoder_deps="libamr_nb"
1117 libamr_nb_encoder_deps="libamr_nb"
1118 libamr_wb_decoder_deps="libamr_wb"
1119 libamr_wb_encoder_deps="libamr_wb"
1120 libdirac_decoder_deps="libdirac !libschroedinger"
1121 libdirac_encoder_deps="libdirac"
1122 libfaac_encoder_deps="libfaac"
1123 libfaad_decoder_deps="libfaad"
1124 libfaadbin_decoder_extralibs='$ldl'
1125 libgsm_decoder_deps="libgsm"
1126 libgsm_encoder_deps="libgsm"
1127 libgsm_ms_decoder_deps="libgsm"
1128 libgsm_ms_encoder_deps="libgsm"
1129 libmp3lame_encoder_deps="libmp3lame"
1130 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1131 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1132 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1133 libopenjpeg_decoder_deps="libopenjpeg"
1134 libschroedinger_decoder_deps="libschroedinger"
1135 libschroedinger_encoder_deps="libschroedinger"
1136 libspeex_decoder_deps="libspeex"
1137 libtheora_encoder_deps="libtheora"
1138 libvorbis_encoder_deps="libvorbis"
1139 libx264_encoder_deps="libx264"
1140 libxvid_encoder_deps="libxvid"
1141
1142 # demuxers / muxers
1143 ac3_demuxer_deps="ac3_parser"
1144 alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1145 alsa_demuxer_extralibs="-lasound"
1146 alsa_muxer_deps="alsa_asoundlib_h"
1147 alsa_muxer_extralibs="-lasound"
1148 audio_beos_demuxer_deps="audio_beos"
1149 audio_beos_demuxer_extralibs="-lmedia -lbe"
1150 audio_beos_muxer_deps="audio_beos"
1151 audio_beos_muxer_extralibs="-lmedia -lbe"
1152 avisynth_demuxer_deps="avisynth"
1153 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1154 dirac_demuxer_deps="dirac_parser"
1155 dv1394_demuxer_deps="dv1394 dv_demuxer"
1156 jack_demuxer_deps="jack_jack_h"
1157 jack_demuxer_extralibs="-ljack"
1158 libdc1394_demuxer_deps="libdc1394"
1159 libnut_demuxer_deps="libnut"
1160 libnut_muxer_deps="libnut"
1161 matroska_demuxer_suggest="zlib bzlib"
1162 mov_demuxer_suggest="zlib"
1163 mp3_demuxer_deps="mpegaudio_parser"
1164 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1165 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1166 redir_demuxer_deps="network"
1167 rtp_muxer_deps="network rtp_protocol"
1168 rtsp_demuxer_deps="sdp_demuxer"
1169 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1170 v4l_demuxer_deps="linux_videodev_h"
1171 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1172 vfwcap_demuxer_deps="capCreateCaptureWindow"
1173 vfwcap_demuxer_extralibs="-lvfw32"
1174 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1175 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1176
1177 # protocols
1178 gopher_protocol_deps="network"
1179 http_protocol_deps="network"
1180 rtp_protocol_deps="udp_protocol"
1181 tcp_protocol_deps="network"
1182 udp_protocol_deps="network"
1183
1184 # filters
1185 movie_filter_deps="avfilter_lavf"
1186
1187 # programs
1188 ffplay_deps="sdl"
1189 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1190 ffserver_extralibs='$ldl'
1191
1192
1193 # default parameters
1194
1195 logfile="config.err"
1196
1197 # installation paths
1198 prefix_default="/usr/local"
1199 bindir_default='${prefix}/bin'
1200 datadir_default='${prefix}/share/ffmpeg'
1201 incdir_default='${prefix}/include'
1202 libdir_default='${prefix}/lib'
1203 mandir_default='${prefix}/share/man'
1204 shlibdir_default="$libdir_default"
1205
1206 # toolchain
1207 ar="ar"
1208 cc_default="gcc"
1209 host_cc_default="gcc"
1210 ln_s="ln -sf"
1211 nm_default="nm"
1212 objformat="elf"
1213 ranlib="ranlib"
1214 strip="strip"
1215 yasmexe="yasm"
1216
1217 # machine
1218 arch=$(uname -m)
1219 cpu="generic"
1220
1221 # OS
1222 target_os=$(tolower $(uname -s))
1223 host_os=$target_os
1224
1225 # configurable options
1226 enable debug
1227 enable fastdiv
1228 enable ffmpeg
1229 enable ffplay
1230 enable ffserver
1231 enable ipv6
1232 enable mpegaudio_hp
1233 enable network
1234 enable optimizations
1235 enable protocols
1236 enable static
1237 enable stripping
1238 enable swscale_alpha
1239
1240 # build settings
1241 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1242 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1243 FFSERVERLDFLAGS=-Wl,-E
1244 LIBPREF="lib"
1245 LIBSUF=".a"
1246 FULLNAME='$(NAME)$(BUILDSUF)'
1247 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1248 SLIBPREF="lib"
1249 SLIBSUF=".so"
1250 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1251 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1252 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1253 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1254
1255 host_cflags='-O3 -g -Wall'
1256 host_libs='-lm'
1257
1258 target_path='.'
1259
1260 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1261 # full relative path for objects in subdirectories for non-recursive Make.
1262 DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1263
1264 # find source path
1265 source_path="$(dirname "$0")"
1266 enable source_path_used
1267 if test -z "$source_path" -o "$source_path" = "." ; then
1268     source_path="$(pwd)"
1269     disable source_path_used
1270 else
1271     source_path="$(cd "$source_path"; pwd)"
1272     echo "$source_path" | grep -q '[[:blank:]]' &&
1273         die "Out of tree builds are impossible with whitespace in source path."
1274     test -e "$source_path/config.h" &&
1275         die "Out of tree builds are impossible with config.h in source dir."
1276 fi
1277
1278 for v in "$@"; do
1279     r=${v#*=}
1280     l=${v%"$r"}
1281     r=$(sh_quote "$r")
1282     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1283 done
1284
1285 find_things(){
1286     thing=$1
1287     pattern=$2
1288     file=$source_path/$3
1289     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1290 }
1291
1292 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1293 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1294 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1295 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1296 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1297 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1298 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1299 OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1300 INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1301 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1302 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1303
1304 enable $ARCH_EXT_LIST \
1305        $DECODER_LIST \
1306        $ENCODER_LIST \
1307        $HWACCEL_LIST \
1308        $PARSER_LIST \
1309        $BSF_LIST \
1310        $DEMUXER_LIST \
1311        $MUXER_LIST \
1312        $FILTER_LIST \
1313        $PROTOCOL_LIST \
1314        $INDEV_LIST \
1315        $OUTDEV_LIST \
1316
1317 die_unknown(){
1318     echo "Unknown option \"$1\"."
1319     echo "See $0 --help for available options."
1320     exit 1
1321 }
1322
1323 show_list() {
1324     suffix=_$1
1325     shift
1326     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1327     exit 0
1328 }
1329
1330 for opt do
1331     optval="${opt#*=}"
1332     case "$opt" in
1333     --extra-cflags=*) add_cflags $optval
1334     ;;
1335     --extra-ldflags=*) add_ldflags $optval
1336     ;;
1337     --extra-libs=*) add_extralibs $optval
1338     ;;
1339     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1340     ;;
1341     --enable-debug=*) debuglevel="$optval"
1342     ;;
1343     --enable-*=*|--disable-*=*)
1344     eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1345     case "$thing" in
1346         encoder|decoder|hwaccel|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1347         *) die_unknown "$opt" ;;
1348     esac
1349     ;;
1350     --enable-?*|--disable-?*)
1351     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1352     if is_in $option $COMPONENT_LIST; then
1353         eval $action \$$(toupper ${option%s})_LIST
1354     elif is_in $option $CMDLINE_SELECT; then
1355         $action $option
1356     else
1357         die_unknown $opt
1358     fi
1359     ;;
1360     --list-*)
1361         NAME="${opt#--list-}"
1362         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1363         NAME=${NAME%s}
1364         eval show_list $NAME \$$(toupper $NAME)_LIST
1365     ;;
1366     --help|-h) show_help
1367     ;;
1368     *)
1369     optname="${opt%%=*}"
1370     optname="${optname#--}"
1371     optname=$(echo "$optname" | sed 's/-/_/g')
1372     is_in $optname $CMDLINE_SET || die_unknown $opt
1373     eval $optname='$optval'
1374     ;;
1375     esac
1376 done
1377
1378 disabled logging && logfile=/dev/null
1379
1380 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1381 set >> $logfile
1382
1383 test -n "$cross_prefix" && enable cross_compile
1384
1385 ar="${cross_prefix}${ar}"
1386 cc_default="${cross_prefix}${cc_default}"
1387 nm_default="${cross_prefix}${nm_default}"
1388 ranlib="${cross_prefix}${ranlib}"
1389 strip="${cross_prefix}${strip}"
1390
1391 sysinclude_default="${sysroot}/usr/include"
1392
1393 set_default cc nm sysinclude
1394 as_default=$cc
1395 enabled cross_compile || host_cc_default=$cc
1396 set_default host_cc
1397
1398 exesuf() {
1399     case $1 in
1400         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1401     esac
1402 }
1403
1404 EXESUF=$(exesuf $target_os)
1405 HOSTEXESUF=$(exesuf $host_os)
1406
1407 # set temporary file name
1408 : ${TMPDIR:=$TEMPDIR}
1409 : ${TMPDIR:=$TMP}
1410 : ${TMPDIR:=/tmp}
1411
1412 if ! check_cmd type mktemp; then
1413     # simple replacement for missing mktemp
1414     # NOT SAFE FOR GENERAL USE
1415     mktemp(){
1416         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1417     }
1418 fi
1419
1420 tmpfile(){
1421     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1422         (set -C; exec > $tmp) 2>/dev/null ||
1423         die "Unable to create temoporary file in $TMPDIR."
1424     append TMPFILES $tmp
1425     eval $1=$tmp
1426 }
1427
1428 trap 'rm -f -- $TMPFILES' EXIT
1429 trap exit HUP INT TERM
1430
1431 tmpfile TMPC  .c
1432 tmpfile TMPE  $EXESUF
1433 tmpfile TMPH  .h
1434 tmpfile TMPO  .o
1435 tmpfile TMPS  .S
1436 tmpfile TMPSH .sh
1437
1438 unset -f mktemp
1439
1440 # make sure we can execute files in $TMPDIR
1441 cat > $TMPSH 2>> $logfile <<EOF
1442 #! /bin/sh
1443 EOF
1444 chmod +x $TMPSH >> $logfile 2>&1
1445 if ! $TMPSH >> $logfile 2>&1; then
1446     cat <<EOF
1447 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1448 variable to another directory and make sure that it is not mounted noexec.
1449 EOF
1450     die "Sanity test failed."
1451 fi
1452
1453 if   $cc --version 2>/dev/null | grep -qi gcc; then
1454     cc_type=gcc
1455 elif $cc --version 2>/dev/null | grep -q Intel; then
1456     cc_type=icc
1457 elif $cc -v 2>&1 | grep -q xlc; then
1458     cc_type=xlc
1459 elif $cc -V 2>/dev/null | grep -q Compaq; then
1460     cc_type=ccc
1461     DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1462     debuglevel=3
1463     add_ldflags -Wl,-z,now # calls to libots crash without this
1464 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1465     test -d "$sysroot" || die "No valid sysroot specified."
1466     cc_type=armcc
1467     armcc_conf="$PWD/armcc.conf"
1468     $cc --arm_linux_configure                 \
1469         --arm_linux_config_file="$armcc_conf" \
1470         --configure_sysroot="$sysroot"        \
1471         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1472         die "Error creating armcc configuration file."
1473     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1474     as_default="${cross_prefix}gcc"
1475 fi
1476
1477 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1478
1479 set_default as
1480
1481 if test -n "$sysroot"; then
1482     case "$cc_type" in
1483         gcc)
1484             add_cflags  --sysroot="$sysroot"
1485             add_ldflags --sysroot="$sysroot"
1486         ;;
1487     esac
1488 fi
1489
1490 # compiler sanity check
1491 check_exec <<EOF
1492 int main(void){ return 0; }
1493 EOF
1494 if test "$?" != 0; then
1495     echo "$cc is unable to create an executable file."
1496     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1497         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1498         echo "Only do this if you know what cross compiling means."
1499     fi
1500     die "C compiler test failed."
1501 fi
1502
1503 check_cflags -std=c99
1504 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1505 #include <stdlib.h>
1506 EOF
1507 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1508 #include <stdlib.h>
1509 EOF
1510
1511 case "$arch" in
1512     alpha)
1513         arch="alpha"
1514         enable fast_64bit
1515         check_cflags -mieee
1516     ;;
1517     arm|armv[4567]*l)
1518         arch="arm"
1519     ;;
1520     avr32)
1521     ;;
1522     bfin)
1523         arch="bfin"
1524     ;;
1525     ia64)
1526         arch="ia64"
1527         enable fast_64bit
1528     ;;
1529     m68k)
1530         arch="m68k"
1531     ;;
1532     mips|mipsel|IP*)
1533         arch="mips"
1534     ;;
1535     mips64)
1536         arch="mips"
1537         subarch="mips64"
1538         enable fast_64bit
1539     ;;
1540     parisc|hppa)
1541         arch="parisc"
1542     ;;
1543     parisc64|hppa64)
1544         arch="parisc"
1545         enable fast_64bit
1546     ;;
1547     "Power Macintosh"|ppc|powerpc)
1548         arch="ppc"
1549         enable fast_unaligned
1550     ;;
1551     ppc64)
1552         arch="ppc"
1553         subarch="ppc64"
1554         enable fast_64bit
1555         enable fast_unaligned
1556     ;;
1557     s390|s390x)
1558         arch="s390"
1559     ;;
1560     sh4|sh)
1561         arch="sh4"
1562     ;;
1563     sparc)
1564         arch="sparc"
1565     ;;
1566     sun4u|sparc64)
1567         arch="sparc"
1568         subarch="sparc64"
1569         enable fast_64bit
1570     ;;
1571     i386|i486|i586|i686|i86pc|BePC)
1572         arch="x86"
1573         subarch="x86_32"
1574         enable fast_unaligned
1575     ;;
1576     x86_64|amd64)
1577         arch="x86"
1578         subarch="x86_32"
1579         enable cmov
1580         enable fast_cmov
1581         enable fast_unaligned
1582         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1583         int test[sizeof(char*) - 7];
1584 EOF
1585     ;;
1586     *)
1587         arch="unknown"
1588     ;;
1589 esac
1590
1591 enable $arch $subarch
1592
1593 # OS specific
1594 case $target_os in
1595     beos|haiku|zeta)
1596         prefix_default="$HOME/config"
1597         # helps building libavcodec
1598         add_cflags -DPIC -fomit-frame-pointer
1599         # 3 gcc releases known for BeOS, each with ugly bugs
1600         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1601         case "$gcc_version" in
1602           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1603             disable mmx
1604             ;;
1605           *20010315*) echo "BeBits gcc"
1606             add_cflags -fno-expensive-optimizations
1607             ;;
1608         esac
1609         SHFLAGS=-nostart
1610         # enable BeOS things
1611         enable audio_beos
1612         # no need for libm, but the inet stuff
1613         # Check for BONE
1614         # XXX: actually should check for NOT net_server
1615         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1616             network_extralibs="-lbind -lsocket"
1617         else
1618             enable beos_netserver
1619             network_extralibs="-lnet"
1620         fi ;;
1621     sunos)
1622         FFSERVERLDFLAGS=""
1623         SHFLAGS='-shared -Wl,-h,$$(@F)'
1624         network_extralibs="-lsocket -lnsl"
1625         add_cflags -D__EXTENSIONS__
1626         ;;
1627     netbsd)
1628         oss_demuxer_extralibs="-lossaudio"
1629         oss_muxer_extralibs="-lossaudio"
1630         ;;
1631     openbsd)
1632         disable need_memalign
1633         LIBOBJFLAGS='$(PIC)'
1634         SHFLAGS='-shared'
1635         oss_demuxer_extralibs="-lossaudio"
1636         oss_muxer_extralibs="-lossaudio"
1637         ;;
1638     freebsd|dragonfly)
1639         disable need_memalign
1640         ;;
1641     bsd/os)
1642         osextralibs="-lpoll -lgnugetopt"
1643         strip="strip -d"
1644         ;;
1645     darwin)
1646         disable need_memalign
1647         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1648         strip="strip -x"
1649         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1650         SLIBSUF=".dylib"
1651         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1652         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1653         FFSERVERLDFLAGS=-Wl,-bind_at_load
1654         objformat="macho"
1655         enabled x86_64 && objformat="macho64"
1656         ;;
1657     mingw32*)
1658         target_os=mingw32
1659         LIBTARGET=i386
1660         if enabled x86_64; then
1661             disable need_memalign
1662             LIBTARGET=x64
1663         fi
1664         shlibdir_default="$bindir_default"
1665         disable ffserver
1666         SLIBPREF=""
1667         SLIBSUF=".dll"
1668         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1669         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1670         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1671         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1672             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1673         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1674         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1675         objformat="win32"
1676         enable dos_paths
1677         check_cflags -fno-common
1678         if ! enabled x86_64; then
1679             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1680                 die "ERROR: MinGW runtime version must be >= 3.15."
1681             enabled_any avisynth vfwcap_demuxer &&
1682                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1683                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1684             fi
1685         ;;
1686     cygwin*)
1687         target_os=cygwin
1688         shlibdir_default="$bindir_default"
1689         SLIBPREF="cyg"
1690         SLIBSUF=".dll"
1691         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1692         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1693         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1694         objformat="win32"
1695         enable dos_paths
1696         check_cflags -fno-common
1697         ;;
1698     *-dos|freedos|opendos)
1699         disable ffplay ffserver
1700         disable $INDEV_LIST $OUTDEV_LIST
1701         network_extralibs="-lsocket"
1702         objformat="coff"
1703         enable dos_paths
1704         ;;
1705     linux)
1706         enable dv1394
1707         ;;
1708     irix*)
1709         target_os=irix
1710         ranlib="echo ignoring ranlib"
1711         ;;
1712     os/2*)
1713         strip="lxlite"
1714         ln_s="cp -f"
1715         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1716         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1717         FFSERVERLDFLAGS=""
1718         LIBSUF="_s.a"
1719         SLIBPREF=""
1720         SLIBSUF=".dll"
1721         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1722         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1723         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1724           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1725           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1726           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1727           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1728           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1729         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1730           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1731         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1732         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1733         enable dos_paths
1734         ;;
1735     gnu/kfreebsd)
1736         ;;
1737     gnu)
1738         ;;
1739
1740     *)
1741         die "Unknown OS '$target_os'."
1742         ;;
1743 esac
1744
1745 set_default $PATHS_LIST
1746
1747 add_extralibs $osextralibs
1748
1749 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1750 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1751
1752 # we need to build at least one lib type
1753 if ! enabled_any static shared; then
1754     cat <<EOF
1755 At least one library type must be built.
1756 Specify --enable-static to build the static libraries or --enable-shared to
1757 build the shared libraries as well. To only build the shared libraries specify
1758 --disable-static in addition to --enable-shared.
1759 EOF
1760     exit 1;
1761 fi
1762
1763 disabled static && LIBNAME=""
1764
1765 if enabled_any libfaad libfaadbin ; then
1766     if check_header faad.h; then
1767         check_cc <<EOF
1768 #include <faad.h>
1769 #ifndef FAAD2_VERSION
1770 ok faad1
1771 #endif
1772 int main(void) { return 0; }
1773 EOF
1774         test $? = 0 && enable libfaad2
1775     else
1776         die "FAAD test failed."
1777     fi
1778 fi
1779
1780
1781 die_license_disabled() {
1782     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
1783 }
1784
1785 die_license_disabled gpl libfaad2
1786 die_license_disabled gpl libx264
1787 die_license_disabled gpl libxvid
1788 die_license_disabled gpl postproc
1789 die_license_disabled gpl x11grab
1790
1791 die_license_disabled nonfree libamr_nb
1792 die_license_disabled nonfree libamr_wb
1793 die_license_disabled nonfree libfaac
1794
1795 die_license_disabled version3 libopencore_amrnb
1796 die_license_disabled version3 libopencore_amrwb
1797
1798 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
1799
1800 check_deps $ARCH_EXT_LIST
1801
1802 test -z "$need_memalign" && need_memalign="$mmx"
1803
1804 #Darwin CC versions
1805 if test $target_os = darwin; then
1806     if enabled xlc; then
1807         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1808     else
1809         add_cflags -pipe
1810         check_cflags -force_cpusubtype_ALL
1811         check_cflags -Wno-sign-compare
1812         enabled shared || check_cflags -mdynamic-no-pic
1813     fi
1814 fi
1815
1816 disabled optimizations || check_cflags -fomit-frame-pointer
1817
1818 # Add processor-specific flags
1819 if test $cpu != "generic"; then
1820     warn_altivec(){
1821         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1822     }
1823     case $cpu in
1824         601|ppc601|PowerPC601)
1825             add_cflags -mcpu=601
1826             warn_altivec enabled PPC601
1827         ;;
1828         603*|ppc603*|PowerPC603*)
1829             add_cflags -mcpu=603
1830             warn_altivec enabled PPC603
1831         ;;
1832         604*|ppc604*|PowerPC604*)
1833             add_cflags -mcpu=604
1834             warn_altivec enabled PPC604
1835         ;;
1836         G3|g3|75*|ppc75*|PowerPC75*)
1837             add_cflags -mcpu=750 -mpowerpc-gfxopt
1838             warn_altivec enabled PPC75x
1839         ;;
1840         G4|g4|745*|ppc745*|PowerPC745*)
1841             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1842             warn_altivec disabled PPC745x
1843         ;;
1844         74*|ppc74*|PowerPC74*)
1845             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1846             warn_altivec disabled PPC74xx
1847         ;;
1848         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1849             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1850             warn_altivec disabled PPC970
1851         ;;
1852         Cell|CELL|cell)
1853             add_cflags -mcpu=cell
1854             warn_altivec disabled Cell
1855             enable ldbrx
1856         ;;
1857         # targets that do NOT support conditional mov (cmov)
1858         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1859             add_cflags -march=$cpu
1860             disable cmov
1861         ;;
1862         # targets that do support conditional mov (cmov)
1863         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1864             add_cflags -march=$cpu
1865             enable cmov
1866             enable fast_cmov
1867         ;;
1868         # targets that do support conditional mov but on which it's slow
1869         pentium4|pentium4m|prescott|nocona)
1870             add_cflags -march=$cpu
1871             enable cmov
1872             disable fast_cmov
1873         ;;
1874         sparc64)
1875             add_cflags -mcpu=v9
1876         ;;
1877         arm11*|cortex*)
1878             add_cflags -mcpu=$cpu
1879             enable fast_unaligned
1880         ;;
1881         armv*)
1882             add_cflags -march=$cpu
1883         ;;
1884         arm*)
1885             add_cflags -mcpu=$cpu
1886         ;;
1887         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1888             enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1889         ;;
1890         bf*)
1891             add_cflags -mcpu=$cpu
1892         ;;
1893         mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1894             add_cflags -march=$cpu
1895         ;;
1896         *)
1897             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1898         ;;
1899     esac
1900 fi
1901
1902 check_cc <<EOF || die "Symbol mangling check failed."
1903 int ff_extern;
1904 EOF
1905 sym=$($nm -P -g $TMPO | grep ff_extern)
1906 extern_prefix=${sym%%ff_extern*}
1907
1908 check_cc <<EOF && enable inline_asm
1909 void foo(void) { __asm__ volatile ("" ::); }
1910 EOF
1911
1912 if enabled x86; then
1913     # check whether EBP is available on x86
1914     # As 'i' is stored on the stack, this program will crash
1915     # if the base pointer is used to access it because the
1916     # base pointer is cleared in the inline assembly code.
1917     check_exec_crash <<EOF && enable ebp_available
1918     volatile int i=0;
1919     __asm__ volatile (
1920         "xorl %%ebp, %%ebp"
1921     ::: "%ebp");
1922     return i;
1923 EOF
1924
1925     # check wether EBX is available on x86
1926     check_asm ebx_available '"":::"%ebx"'
1927
1928     # check whether more than 10 operands are supported
1929     check_cc <<EOF && enable ten_operands
1930 int main(void) {
1931     int x=0;
1932     __asm__ volatile(
1933         ""
1934         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1935     );
1936     return 0;
1937 }
1938 EOF
1939
1940     # check whether binutils is new enough to compile SSSE3/MMX2
1941     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1942     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1943
1944     check_asm bswap '"bswap %%eax" ::: "%eax"'
1945
1946     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1947     enabled     x86_64        && append YASMFLAGS "-m amd64"
1948     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1949     case "$objformat" in
1950         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1951         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1952         *)                    append YASMFLAGS "-DPREFIX"  ;;
1953     esac
1954     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1955 fi
1956
1957 # check for assembler specific support
1958
1959 enabled mips && check_asm loongson '"dmult.g $1, $2, $3"'
1960
1961 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1962 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1963 enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
1964
1965 # check for SIMD availability
1966
1967 # AltiVec flags: The FSF version of GCC differs from the Apple version
1968 if enabled altivec; then
1969     check_cflags -maltivec -mabi=altivec &&
1970         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1971         check_cflags -faltivec
1972
1973     # check if our compiler supports Motorola AltiVec C API
1974     check_cc <<EOF || disable altivec
1975 $inc_altivec_h
1976 int main(void) {
1977     vector signed int v1, v2, v3;
1978     v1 = vec_add(v2,v3);
1979     return 0;
1980 }
1981 EOF
1982
1983     # check if our compiler supports braces for vector declarations
1984     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1985 $inc_altivec_h
1986 int main (void) { (vector int) {1}; return 0; }
1987 EOF
1988 fi
1989
1990 # We have to check if pld is a nop and disable it.
1991 enabled arm     && check_asm pld     '"pld [r0]"'
1992 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1993 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1994 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1995 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1996 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1997 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1998 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1999 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
2000
2001 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2002
2003 # ---
2004 # big/little-endian test
2005 check_cc <<EOF || die "endian test failed"
2006 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2007 EOF
2008 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2009
2010 # ---
2011 # check availability of some header files
2012
2013 if check_func dlopen; then
2014     ldl=
2015 elif check_func dlopen -ldl; then
2016     ldl=-ldl
2017 fi
2018
2019 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2020 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2021
2022 check_func  fork
2023 check_func  gethrtime
2024 check_func  getrusage
2025 check_func  inet_aton $network_extralibs
2026 check_func  memalign
2027 check_func  mkstemp
2028 check_func  posix_memalign
2029 check_func_headers io.h setmode
2030 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2031 check_func_headers windows.h GetProcessTimes
2032 check_func_headers windows.h VirtualAlloc
2033
2034 check_header conio.h
2035 check_header dlfcn.h
2036 check_header malloc.h
2037 check_header poll.h
2038 check_header sys/mman.h
2039 check_header sys/resource.h
2040 check_header sys/select.h
2041 check_header termios.h
2042 check_header vdpau/vdpau.h
2043 check_header vdpau/vdpau_x11.h
2044 check_header X11/extensions/XvMClib.h
2045
2046 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
2047     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2048 fi
2049
2050 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2051 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2052
2053 # check for some common methods of building with pthread support
2054 # do this before the optional library checks as some of them require pthreads
2055 if enabled pthreads; then
2056     if check_func pthread_create; then
2057         :
2058     elif check_func pthread_create -pthread; then
2059         add_cflags -pthread
2060         add_extralibs -pthread
2061     elif check_func pthread_create -pthreads; then
2062         add_cflags -pthreads
2063         add_extralibs -pthreads
2064     elif check_func pthread_create -lpthreadGC2; then
2065         add_extralibs -lpthreadGC2
2066     elif ! check_lib pthread.h pthread_create -lpthread; then
2067         die "ERROR: can't find pthreads library"
2068     fi
2069 fi
2070
2071 for thread in $THREADS_LIST; do
2072     if enabled $thread; then
2073         test -n "$thread_type" &&
2074             die "ERROR: Only one thread type must be selected." ||
2075             thread_type="$thread"
2076     fi
2077 done
2078
2079 check_lib math.h sin -lm
2080 check_lib va/va.h vaInitialize -lva
2081
2082 # test for C99 functions in math.h
2083 for func in llrint lrint lrintf round roundf truncf; do
2084     check_exec <<EOF && enable $func || disable $func
2085 #include <math.h>
2086 int main(void) { return ($func(3.999f) > 0)?0:1; }
2087 EOF
2088 done
2089
2090 # these are off by default, so fail if requested and not available
2091 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2092 enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Decoder_Interface_init -lamrnb -lm
2093 enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
2094 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2095                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2096                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2097 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2098 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2099 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2100 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2101 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2102 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2103 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2104 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2105 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2106                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2107 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2108 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2109 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2110 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2111                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2112                         die "ERROR: libx264 version must be >= 0.65."; }
2113 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2114 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2115
2116 # libdc1394 check
2117 if enabled libdc1394; then
2118     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2119         enable libdc1394_2; } ||
2120     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2121         enable libdc1394_1; } ||
2122     die "ERROR: No version of libdc1394 found "
2123 fi
2124
2125
2126 _restrict=
2127 for restrict_keyword in restrict __restrict__ __restrict; do
2128     check_cc <<EOF && _restrict=$restrict_keyword && break
2129 void foo(char * $restrict_keyword p);
2130 EOF
2131 done
2132
2133 ##########################################
2134 # SDL check
2135
2136 disable sdl_too_old
2137 disable sdl
2138 SDL_CONFIG="${cross_prefix}sdl-config"
2139 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2140     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2141     temp_cflags $sdl_cflags
2142     temp_extralibs $("${SDL_CONFIG}" --libs)
2143     if check_lib2 SDL.h SDL_Init; then
2144         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2145         if test "$_sdlversion" -lt 121 ; then
2146             enable sdl_too_old
2147         else
2148             enable sdl
2149             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2150 #include <SDL.h>
2151 int main(int argc, char **argv){
2152     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2153     int w = vi->current_w;
2154     return 0;
2155 }
2156 EOF
2157         fi
2158     fi
2159     restore_flags
2160 fi
2161
2162 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2163
2164 ##########################################
2165 # Network check
2166
2167 if enabled network; then
2168     check_type "sys/types.h sys/socket.h" socklen_t
2169     # Prefer arpa/inet.h over winsock2
2170     if check_header arpa/inet.h ; then
2171         check_func closesocket
2172     elif check_header winsock2.h ; then
2173         network_extralibs="-lws2_32"
2174         check_type ws2tcpip.h socklen_t
2175         check_func_headers winsock2.h closesocket
2176     else
2177         disable network
2178     fi
2179 fi
2180
2181 ##########################################
2182 # IPv6 check
2183
2184 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2185 #include <sys/types.h>
2186 #include <sys/socket.h>
2187 #include <netinet/in.h>
2188 #include <netdb.h>
2189 int main(void) {
2190     struct sockaddr_storage saddr;
2191     struct ipv6_mreq mreq6;
2192     getaddrinfo(0,0,0,0);
2193     getnameinfo(0,0,0,0,0,0,0);
2194     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2195 }
2196 EOF
2197
2198 check_header linux/videodev.h
2199 check_header linux/videodev2.h
2200 check_header sys/videoio.h
2201
2202 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2203
2204 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2205 { check_header dev/bktr/ioctl_meteor.h &&
2206   check_header dev/bktr/ioctl_bt848.h; } ||
2207 { check_header machine/ioctl_meteor.h &&
2208   check_header machine/ioctl_bt848.h; } ||
2209 { check_header dev/video/meteor/ioctl_meteor.h &&
2210   check_header dev/video/bktr/ioctl_bt848.h; } ||
2211 check_header dev/ic/bt8xx.h
2212
2213 check_header sys/soundcard.h
2214 check_header soundcard.h
2215
2216 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2217
2218 check_lib2 jack/jack.h jack_client_open -ljack
2219
2220 # deal with the X11 frame grabber
2221 enabled x11grab                         &&
2222 check_header X11/Xlib.h                 &&
2223 check_header X11/extensions/XShm.h      &&
2224 check_func XOpenDisplay -lX11           &&
2225 check_func XShmCreateImage -lX11 -lXext
2226
2227 enabled debug && add_cflags -g"$debuglevel"
2228
2229 # add some useful compiler flags if supported
2230 check_cflags -Wdeclaration-after-statement
2231 check_cflags -Wall
2232 check_cflags -Wno-switch
2233 check_cflags -Wdisabled-optimization
2234 check_cflags -Wpointer-arith
2235 check_cflags -Wredundant-decls
2236 check_cflags -Wno-pointer-sign
2237 check_cflags -Wcast-qual
2238 check_cflags -Wwrite-strings
2239 check_cflags -Wtype-limits
2240 check_cflags -Wundef
2241 enabled extra_warnings && check_cflags -Winline
2242
2243 # add some linker flags
2244 check_ldflags -Wl,--warn-common
2245 check_ldflags -Wl,--as-needed
2246 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'
2247 check_ldflags -Wl,-Bsymbolic
2248
2249 if enabled small; then
2250     check_cflags -Os            # not all compilers support -Os
2251     optimizations="small"
2252 elif enabled optimizations; then
2253     if enabled xlc; then
2254         add_cflags  -O5
2255         add_ldflags -O5
2256     elif enabled ccc; then
2257         add_cflags -fast
2258     else
2259         add_cflags -O3
2260     fi
2261 fi
2262 check_cflags -fno-math-errno
2263 check_cflags -fno-signed-zeros
2264
2265 # add some flags for Intel C Compiler
2266 if enabled icc; then
2267     # Just warnings, no remarks
2268     check_cflags -w1
2269     # -wd: Disable following warnings
2270     # 144, 167, 556: -Wno-pointer-sign
2271     # 10006: ignoring unknown option -fno-signed-zeros
2272     # 10156: ignoring option '-W'; no argument required
2273     check_cflags -wd144,167,556,10006,10156
2274     # 11030: Warning unknown option --as-needed
2275     # 10156: ignoring option '-export'; no argument required
2276     check_ldflags -wd10156,11030
2277     # Allow to compile with optimizations
2278     check_ldflags -march=$cpu
2279     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2280     enable ebp_available
2281 elif enabled ccc; then
2282     # disable some annoying warnings
2283     add_cflags -msg_disable cvtu32to64
2284     add_cflags -msg_disable embedcomment
2285     add_cflags -msg_disable needconstext
2286     add_cflags -msg_disable nomainieee
2287     add_cflags -msg_disable ptrmismatch1
2288     add_cflags -msg_disable unreachcode
2289 fi
2290
2291 # PIC flags for shared library objects where they are needed
2292 if enabled shared; then
2293     # LIBOBJFLAGS may have already been set in the OS configuration
2294     if test -z "$LIBOBJFLAGS" ; then
2295         case "${subarch-$arch}" in
2296             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2297         esac
2298     fi
2299 fi
2300
2301 if enabled gprof; then
2302     add_cflags  -p
2303     add_ldflags -p
2304 fi
2305
2306 # Find out if the .align argument is a power of two or not.
2307 check_asm asmalign_pot '".align 3"'
2308
2309 enabled_any $DECODER_LIST      && enable decoders
2310 enabled_any $ENCODER_LIST      && enable encoders
2311 enabled_any $HWACCEL_LIST      && enable hwaccels
2312 enabled_any $BSF_LIST          && enable bsfs
2313 enabled_any $DEMUXER_LIST      && enable demuxers
2314 enabled_any $MUXER_LIST        && enable muxers
2315 enabled_any $FILTER_LIST       && enable filters
2316 enabled_any $INDEV_LIST        && enable demuxers
2317 enabled_any $OUTDEV_LIST       && enable muxers
2318 enabled_any $PROTOCOL_LIST     && enable protocols
2319
2320 enabled_any $THREADS_LIST      && enable threads
2321
2322 check_deps $CONFIG_LIST       \
2323            $CONFIG_EXTRA      \
2324            $HAVE_LIST         \
2325            $DECODER_LIST      \
2326            $ENCODER_LIST      \
2327            $HWACCEL_LIST      \
2328            $PARSER_LIST       \
2329            $BSF_LIST          \
2330            $DEMUXER_LIST      \
2331            $MUXER_LIST        \
2332            $FILTER_LIST       \
2333            $INDEV_LIST        \
2334            $OUTDEV_LIST       \
2335            $PROTOCOL_LIST     \
2336
2337 echo "install prefix            $prefix"
2338 echo "source path               $source_path"
2339 echo "C compiler                $cc"
2340 echo ".align is power-of-two    $asmalign_pot"
2341 echo "ARCH                      $arch ($cpu)"
2342 if test "$build_suffix" != ""; then
2343     echo "build suffix              $build_suffix"
2344 fi
2345 if test "$extra_version" != ""; then
2346     echo "version string suffix     $extra_version"
2347 fi
2348 echo "big-endian                ${bigendian-no}"
2349 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2350 if enabled x86; then
2351     echo "yasm                      ${yasm-no}"
2352     echo "MMX enabled               ${mmx-no}"
2353     echo "MMX2 enabled              ${mmx2-no}"
2354     echo "3DNow! enabled            ${amd3dnow-no}"
2355     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2356     echo "SSE enabled               ${sse-no}"
2357     echo "SSSE3 enabled             ${ssse3-no}"
2358     echo "CMOV enabled              ${cmov-no}"
2359     echo "CMOV is fast              ${fast_cmov-no}"
2360     echo "EBX available             ${ebx_available-no}"
2361     echo "EBP available             ${ebp_available-no}"
2362     echo "10 operands supported     ${ten_operands-no}"
2363 fi
2364 if enabled arm; then
2365     echo "ARMv5TE enabled           ${armv5te-no}"
2366     echo "ARMv6 enabled             ${armv6-no}"
2367     echo "ARMv6T2 enabled           ${armv6t2-no}"
2368     echo "ARM VFP enabled           ${armvfp-no}"
2369     echo "IWMMXT enabled            ${iwmmxt-no}"
2370     echo "NEON enabled              ${neon-no}"
2371 fi
2372 if enabled mips; then
2373     echo "MMI enabled               ${mmi-no}"
2374 fi
2375 if enabled ppc; then
2376     echo "AltiVec enabled           ${altivec-no}"
2377     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2378     echo "dcbzl available           ${dcbzl-no}"
2379     echo "performance report        ${powerpc_perf-no}"
2380 fi
2381 if enabled sparc; then
2382     echo "VIS enabled               ${vis-no}"
2383 fi
2384 echo "gprof enabled             ${gprof-no}"
2385 echo "debug symbols             ${debug-no}"
2386 echo "strip symbols             ${stripping-no}"
2387 echo "optimizations             ${optimizations-no}"
2388 echo "static                    ${static-no}"
2389 echo "shared                    ${shared-no}"
2390 echo "postprocessing support    ${postproc-no}"
2391 echo "new filter support        ${avfilter-no}"
2392 echo "filters using lavformat   ${avfilter_lavf-no}"
2393 echo "network support           ${network-no}"
2394 if enabled network; then
2395     echo "IPv6 support              ${ipv6-no}"
2396 fi
2397 echo "threading support         ${thread_type-no}"
2398 echo "SDL support               ${sdl-no}"
2399 if enabled sdl_too_old; then
2400     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2401 fi
2402 echo "Sun medialib support      ${mlib-no}"
2403 echo "AVISynth enabled          ${avisynth-no}"
2404 echo "libamr-nb support         ${libamr_nb-no}"
2405 echo "libamr-wb support         ${libamr_wb-no}"
2406 echo "libdc1394 support         ${libdc1394-no}"
2407 echo "libdirac enabled          ${libdirac-no}"
2408 echo "libfaac enabled           ${libfaac-no}"
2409 echo "libfaad enabled           ${libfaad-no}"
2410 echo "libfaad dlopened          ${libfaadbin-no}"
2411 echo "libgsm enabled            ${libgsm-no}"
2412 echo "libmp3lame enabled        ${libmp3lame-no}"
2413 echo "libnut enabled            ${libnut-no}"
2414 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2415 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2416 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2417 echo "libschroedinger enabled   ${libschroedinger-no}"
2418 echo "libspeex enabled          ${libspeex-no}"
2419 echo "libtheora enabled         ${libtheora-no}"
2420 echo "libvorbis enabled         ${libvorbis-no}"
2421 echo "libx264 enabled           ${libx264-no}"
2422 echo "libxvid enabled           ${libxvid-no}"
2423 echo "zlib enabled              ${zlib-no}"
2424 echo "bzlib enabled             ${bzlib-no}"
2425 echo
2426
2427 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2428     echo "Enabled ${type}s:"
2429     eval list=\$$(toupper $type)_LIST
2430     for part in $list; do
2431         enabled $part && echo ${part%_*}
2432     done | sort | pr -3 -t
2433     echo
2434 done
2435
2436 license="LGPL version 2.1 or later"
2437 if enabled nonfree; then
2438     license="nonfree and unredistributable"
2439 elif enabled gplv3; then
2440     license="GPL version 3 or later"
2441 elif enabled lgplv3; then
2442     license="LGPL version 3 or later"
2443 elif enabled gpl; then
2444     license="GPL version 2 or later"
2445 fi
2446
2447 echo "License: $license"
2448
2449 echo "Creating config.mak and config.h..."
2450
2451 echo "# Automatically generated by configure - do not modify!" > config.mak
2452 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2453 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2454 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2455 echo "#define FFMPEG_CONFIGURATION \"$(c_escape $FFMPEG_CONFIGURATION)\"" >> $TMPH
2456 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2457
2458 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2459 echo "prefix=$prefix" >> config.mak
2460 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2461 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2462 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2463 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2464 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2465 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2466 echo "SRC_PATH=\"$source_path\"" >> config.mak
2467 echo "SRC_PATH_BARE=$source_path" >> config.mak
2468 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2469 echo "CC=$cc" >> config.mak
2470 echo "AS=$as" >> config.mak
2471 echo "YASM=$yasmexe" >> config.mak
2472 echo "AR=$ar" >> config.mak
2473 echo "RANLIB=$ranlib" >> config.mak
2474 echo "LN_S=$ln_s" >> config.mak
2475 enabled stripping &&
2476     echo "STRIP=$strip" >> config.mak ||
2477     echo "STRIP=echo ignoring strip" >> config.mak
2478
2479 echo "OPTFLAGS=$CFLAGS" >> config.mak
2480 echo "LDFLAGS=$LDFLAGS" >> config.mak
2481 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2482 echo "SHFLAGS=$SHFLAGS" >> config.mak
2483 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2484 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2485 echo "BUILD_STATIC=$static" >> config.mak
2486 echo "BUILDSUF=$build_suffix" >> config.mak
2487 echo "FULLNAME=$FULLNAME" >> config.mak
2488 echo "LIBPREF=$LIBPREF" >> config.mak
2489 echo "LIBSUF=$LIBSUF" >> config.mak
2490 echo "LIBNAME=$LIBNAME" >> config.mak
2491 echo "SLIBPREF=$SLIBPREF" >> config.mak
2492 echo "SLIBSUF=$SLIBSUF" >> config.mak
2493 echo "EXESUF=$EXESUF" >> config.mak
2494 echo "EXTRA_VERSION=$extra_version" >> config.mak
2495 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2496 echo "HOSTCC=$host_cc" >> config.mak
2497 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2498 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2499 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2500 echo "HOSTLIBS=$host_libs" >> config.mak
2501 echo "TARGET_EXEC=$target_exec" >> config.mak
2502 echo "TARGET_PATH=$target_path" >> config.mak
2503
2504 if enabled bigendian; then
2505     echo "WORDS_BIGENDIAN=yes" >> config.mak
2506     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2507 fi
2508
2509 if enabled sdl; then
2510     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2511     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2512 fi
2513 if enabled texi2html; then
2514     echo "BUILD_DOC=yes" >> config.mak
2515 fi
2516
2517 get_version(){
2518     name=$1
2519     file=$source_path/$2
2520     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2521     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2522     lcname=$(tolower $name)
2523     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2524     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2525 }
2526
2527 get_version LIBSWSCALE  libswscale/swscale.h
2528 get_version LIBPOSTPROC libpostproc/postprocess.h
2529 get_version LIBAVCODEC  libavcodec/avcodec.h
2530 get_version LIBAVDEVICE libavdevice/avdevice.h
2531 get_version LIBAVFORMAT libavformat/avformat.h
2532 get_version LIBAVUTIL   libavutil/avutil.h
2533 get_version LIBAVFILTER libavfilter/avfilter.h
2534
2535 if enabled shared; then
2536     echo "BUILD_SHARED=yes" >> config.mak
2537     echo "PIC=-fPIC -DPIC" >> config.mak
2538     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2539     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2540     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2541     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2542     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2543     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2544     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2545     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2546 fi
2547 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2548 echo "EXTRALIBS=$extralibs" >> config.mak
2549
2550 echo "ARCH=$arch" >> config.mak
2551
2552 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2553 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2554 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2555                                       $CONFIG_EXTRA      \
2556                                       $DECODER_LIST      \
2557                                       $ENCODER_LIST      \
2558                                       $HWACCEL_LIST      \
2559                                       $PARSER_LIST       \
2560                                       $BSF_LIST          \
2561                                       $DEMUXER_LIST      \
2562                                       $MUXER_LIST        \
2563                                       $FILTER_LIST       \
2564                                       $PROTOCOL_LIST     \
2565                                       $INDEV_LIST        \
2566                                       $OUTDEV_LIST       \
2567
2568 echo "#define restrict $_restrict" >> $TMPH
2569
2570 if enabled small; then
2571     echo "#define av_always_inline"  >> $TMPH
2572 fi
2573
2574
2575 # Apparently it's not possible to portably echo a backslash.
2576 enabled asmalign_pot &&
2577     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2578     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2579
2580 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2581
2582 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2583
2584 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2585 cmp -s $TMPH config.h &&
2586     echo "config.h is unchanged" ||
2587     mv -f $TMPH config.h
2588
2589 # build tree in object directory if source path is different from current one
2590 if enabled source_path_used; then
2591     DIRS="\
2592         doc               \
2593         libavcodec        \
2594         libavcodec/alpha  \
2595         libavcodec/arm    \
2596         libavcodec/bfin   \
2597         libavcodec/mlib   \
2598         libavcodec/ppc    \
2599         libavcodec/sh4    \
2600         libavcodec/sparc  \
2601         libavcodec/x86    \
2602         libavdevice       \
2603         libavfilter       \
2604         libavformat       \
2605         libavutil         \
2606         libpostproc       \
2607         libswscale        \
2608         libswscale/bfin   \
2609         libswscale/mlib   \
2610         libswscale/ppc    \
2611         libswscale/sparc  \
2612         libswscale/x86    \
2613         tests             \
2614         tools             \
2615         "
2616     FILES="\
2617         Makefile             \
2618         common.mak           \
2619         subdir.mak           \
2620         doc/texi2pod.pl      \
2621         libavcodec/Makefile  \
2622         libavdevice/Makefile \
2623         libavfilter/Makefile \
2624         libavformat/Makefile \
2625         libavutil/Makefile   \
2626         libpostproc/Makefile \
2627         libswscale/Makefile  \
2628         "
2629     for dir in $DIRS ; do
2630         mkdir -p $dir
2631     done
2632     for f in $FILES ; do
2633         $ln_s "$source_path/$f" $f
2634     done
2635 fi
2636
2637
2638 # build pkg-config files
2639
2640 pkgconfig_generate(){
2641 name=$1
2642 shortname=${name#lib}${build_suffix}
2643 comment=$2
2644 version=$3
2645 libs=$4
2646 requires=$5
2647 cat <<EOF > $name/$name.pc
2648 prefix=$prefix
2649 exec_prefix=\${prefix}
2650 libdir=$libdir
2651 includedir=$incdir
2652
2653 Name: $name
2654 Description: $comment
2655 Version: $version
2656 Requires: $(disabled shared && echo $requires)
2657 Requires.private: $(enabled shared && echo $requires)
2658 Conflicts:
2659 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2660 Libs.private: $(enabled shared && echo $libs)
2661 Cflags: -I\${includedir}
2662 EOF
2663 cat <<EOF > $name/$name-uninstalled.pc
2664 prefix=
2665 exec_prefix=
2666 libdir=\${pcfiledir}
2667 includedir=${source_path}
2668
2669 Name: $name
2670 Description: $comment
2671 Version: $version
2672 Requires: $requires
2673 Conflicts:
2674 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2675 Cflags: -I\${includedir}
2676 EOF
2677 }
2678
2679 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2680 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2681 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2682 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2683 enabled avfilter &&
2684     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2685 enabled postproc &&
2686     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2687 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"