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-indev=NAME     disable input device NAME"
 135   echo "  --disable-outdev=NAME    disable output device NAME"
 136   echo "  --disable-indevs         disable input devices"
 137   echo "  --disable-outdevs        disable output devices"
 138   echo "  --disable-devices        disable all devices"
 139   echo "  --enable-filter=NAME     enable filter NAME"
 140   echo "  --disable-filter=NAME    disable filter NAME"
 141   echo "  --disable-filters        disable all filters"
 142   echo "  --list-decoders          show all available decoders"
 143   echo "  --list-encoders          show all available encoders"
 144   echo "  --list-hwaccels          show all available hardware accelerators"
 145   echo "  --list-muxers            show all available muxers"
 146   echo "  --list-demuxers          show all available demuxers"
 147   echo "  --list-parsers           show all available parsers"
 148   echo "  --list-protocols         show all available protocols"
 149   echo "  --list-bsfs              show all available bitstream filters"
 150   echo "  --list-indevs            show all available input devices"
 151   echo "  --list-outdevs           show all available output devices"
 152   echo "  --list-filters           show all available filters"
 153   echo
 154   echo "External library support:"
 155   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 156   echo "  --enable-bzlib           enable bzlib [autodetect]"
 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 "  --ld=LD                  use linker LD"
 194   echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
 195   echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
 196   echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
 197   echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
 198   echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
 199   echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
 200   echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
 201   echo "  --extra-version=STRING   version string suffix []"
 202   echo "  --build-suffix=SUFFIX    library name suffix []"
 203   echo "  --arch=ARCH              select architecture [$arch]"
 204   echo "  --cpu=CPU                select the minimum required CPU (affects"
 205   echo "                           instruction selection, may crash on older CPUs)"
 206   echo "  --enable-powerpc-perf    enable performance report on PPC"
 207   echo "                           (requires enabling PMC)"
 208   echo "  --disable-altivec        disable AltiVec optimizations"
 209   echo "  --disable-amd3dnow       disable 3DNow! optimizations"
 210   echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
 211   echo "  --disable-mmx            disable MMX optimizations"
 212   echo "  --disable-mmx2           disable MMX2 optimizations"
 213   echo "  --disable-sse            disable SSE optimizations"
 214   echo "  --disable-ssse3          disable SSSE3 optimizations"
 215   echo "  --disable-armv5te        disable armv5te optimizations"
 216   echo "  --disable-armv6          disable armv6 optimizations"
 217   echo "  --disable-armv6t2        disable armv6t2 optimizations"
 218   echo "  --disable-armvfp         disable ARM VFP optimizations"
 219   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 220   echo "  --disable-mmi            disable MMI optimizations"
 221   echo "  --disable-neon           disable neon optimizations"
 222   echo "  --disable-vis            disable VIS optimizations"
 223   echo "  --disable-yasm           disable use of yasm assembler"
 224   echo
 225   echo "Developer options (useful when working on FFmpeg itself):"
 226   echo "  --disable-debug          disable debugging symbols"
 227   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 228   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 229   echo "  --disable-optimizations  disable compiler optimizations"
 230   echo "  --enable-extra-warnings  enable more compiler warnings"
 231   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 232   echo ""
 233   echo "NOTE: Object files are built at the place where configure is launched."
 234   exit 0
 235 }
 236
 237 log(){
 238     echo "$@" >> $logfile
 239 }
 240
 241 log_file(){
 242     log BEGIN $1
 243     pr -n -t $1 >> $logfile
 244     log END $1
 245 }
 246
 247 echolog(){
 248     log "$@"
 249     echo "$@"
 250 }
 251
 252 die(){
 253     echolog "$@"
 254     cat <<EOF
 255
 256 If you think configure made a mistake, make sure you are using the latest
 257 version from SVN.  If the latest version fails, report the problem to the
 258 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 259 EOF
 260     if disabled logging; then
 261         cat <<EOF
 262 Rerun configure with logging enabled (do not use --disable-logging), and
 263 include the log this produces with your report.
 264 EOF
 265     else
 266 cat <<EOF
 267 Include the log file "$logfile" produced by configure as this will help
 268 solving the problem.
 269 EOF
 270     fi
 271     exit 1
 272 }
 273
 274 # Avoid locale weirdness, besides we really just want to translate ASCII.
 275 toupper(){
 276     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 277 }
 278
 279 tolower(){
 280     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 281 }
 282
 283 c_escape(){
 284     echo "$*" | sed 's/["\\]/\\\0/g'
 285 }
 286
 287 sh_quote(){
 288     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 289     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
 290     echo "$v"
 291 }
 292
 293 set_all(){
 294     value=$1
 295     shift
 296     for var in $*; do
 297         eval $var=$value
 298     done
 299 }
 300
 301 set_weak(){
 302     value=$1
 303     shift
 304     for var; do
 305         eval : \${$var:=$value}
 306     done
 307 }
 308
 309 pushvar(){
 310     for var in $*; do
 311         eval level=\${${var}_level:=0}
 312         eval ${var}_${level}="\$$var"
 313         eval ${var}_level=$(($level+1))
 314     done
 315 }
 316
 317 popvar(){
 318     for var in $*; do
 319         eval level=\${${var}_level:-0}
 320         test $level = 0 && continue
 321         eval level=$(($level-1))
 322         eval $var="\${${var}_${level}}"
 323         eval ${var}_level=$level
 324         eval unset ${var}_${level}
 325     done
 326 }
 327
 328 enable(){
 329     set_all yes $*
 330 }
 331
 332 disable(){
 333     set_all no $*
 334 }
 335
 336 enable_weak(){
 337     set_weak yes $*
 338 }
 339
 340 disable_weak(){
 341     set_weak no $*
 342 }
 343
 344 enable_safe(){
 345     enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 346 }
 347
 348 disable_safe(){
 349     disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 350 }
 351
 352 do_enable_deep(){
 353     for var; do
 354         enabled $var && continue
 355         eval sel="\$${var}_select"
 356         eval sgs="\$${var}_suggest"
 357         pushvar var sgs
 358         enable_deep $sel
 359         popvar sgs
 360         enable_deep_weak $sgs
 361         popvar var
 362     done
 363 }
 364
 365 enable_deep(){
 366     do_enable_deep $*
 367     enable $*
 368 }
 369
 370 enable_deep_weak(){
 371     do_enable_deep $*
 372     enable_weak $*
 373 }
 374
 375 enabled(){
 376     test "${1#!}" = "$1" && op== || op=!=
 377     eval test "x\$${1#!}" $op "xyes"
 378 }
 379
 380 disabled(){
 381     test "${1#!}" = "$1" && op== || op=!=
 382     eval test "x\$${1#!}" $op "xno"
 383 }
 384
 385 enabled_all(){
 386     for opt; do
 387         enabled $opt || return 1
 388     done
 389 }
 390
 391 disabled_all(){
 392     for opt; do
 393         disabled $opt || return 1
 394     done
 395 }
 396
 397 enabled_any(){
 398     for opt; do
 399         enabled $opt && return 0
 400     done
 401 }
 402
 403 disabled_any(){
 404     for opt; do
 405         disabled $opt && return 0
 406     done
 407     return 1
 408 }
 409
 410 set_default(){
 411     for opt; do
 412         eval : \${$opt:=\$${opt}_default}
 413     done
 414 }
 415
 416 is_in(){
 417     value=$1
 418     shift
 419     for var in $*; do
 420         [ $var = $value ] && return 0
 421     done
 422     return 1
 423 }
 424
 425 check_deps(){
 426     for cfg; do
 427         cfg="${cfg#!}"
 428         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 429         disabled ${cfg}_checking && continue
 430         enable ${cfg}_checking
 431
 432         eval dep_all="\$${cfg}_deps"
 433         eval dep_any="\$${cfg}_deps_any"
 434         eval dep_sel="\$${cfg}_select"
 435         eval dep_sgs="\$${cfg}_suggest"
 436
 437         pushvar cfg dep_all dep_any dep_sel dep_sgs
 438         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 439         popvar cfg dep_all dep_any dep_sel dep_sgs
 440
 441         enabled_all  $dep_all || disable $cfg
 442         enabled_any  $dep_any || disable $cfg
 443         disabled_any $dep_sel && disable $cfg
 444
 445         if enabled $cfg; then
 446             eval dep_extralibs="\$${cfg}_extralibs"
 447             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 448             enable_deep $dep_sel
 449             enable_deep_weak $dep_sgs
 450         fi
 451
 452         disable ${cfg}_checking
 453     done
 454 }
 455
 456 print_config(){
 457     pfx=$1
 458     header=$2
 459     makefile=$3
 460     shift 3
 461     for cfg; do
 462         ucname="$(toupper $cfg)"
 463         if enabled $cfg; then
 464             echo "#define ${pfx}${ucname} 1" >> $header
 465             echo "${pfx}${ucname}=yes" >> $makefile
 466         else
 467             echo "#define ${pfx}${ucname} 0" >> $header
 468         fi
 469     done
 470 }
 471
 472 flags_saved(){
 473     (: ${SAVE_CFLAGS?}) 2> /dev/null
 474 }
 475
 476 save_flags(){
 477     flags_saved && return
 478     SAVE_CFLAGS="$CFLAGS"
 479     SAVE_LDFLAGS="$LDFLAGS"
 480     SAVE_extralibs="$extralibs"
 481 }
 482
 483 restore_flags(){
 484     flags_saved || return
 485     CFLAGS="$SAVE_CFLAGS"
 486     LDFLAGS="$SAVE_LDFLAGS"
 487     extralibs="$SAVE_extralibs"
 488     unset SAVE_CFLAGS
 489     unset SAVE_LDFLAGS
 490     unset SAVE_extralibs
 491 }
 492
 493 temp_cflags(){
 494     save_flags
 495     CFLAGS="$CFLAGS $*"
 496 }
 497
 498 temp_ldflags(){
 499     save_flags
 500     LDFLAGS="$LDFLAGS $*"
 501 }
 502
 503 temp_extralibs(){
 504     save_flags
 505     extralibs="$extralibs $*"
 506 }
 507
 508 append(){
 509     var=$1
 510     shift
 511     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 512     eval "$var=\"\$$var $*\""
 513 }
 514
 515 add_cppflags(){
 516     append CPPFLAGS "$@"
 517 }
 518
 519 add_cflags(){
 520     append CFLAGS "$@"
 521 }
 522
 523 add_ldflags(){
 524     append LDFLAGS "$@"
 525 }
 526
 527 add_extralibs(){
 528     append extralibs "$@"
 529 }
 530
 531 check_cmd(){
 532     log "$@"
 533     "$@" >> $logfile 2>&1
 534 }
 535
 536 check_cc(){
 537     log check_cc "$@"
 538     cat > $TMPC
 539     log_file $TMPC
 540     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 541 }
 542
 543 check_cpp(){
 544     log check_cpp "$@"
 545     cat > $TMPC
 546     log_file $TMPC
 547     check_cmd $cc $CPPFLAGS "$@" -E -o $TMPO $TMPC
 548 }
 549
 550 check_as(){
 551     log check_as "$@"
 552     cat > $TMPC
 553     log_file $TMPC
 554     check_cmd $as $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 555 }
 556
 557 check_asm(){
 558     log check_asm "$@"
 559     name="$1"
 560     asm="$2"
 561     shift 2
 562     check_as "$@" <<EOF && enable $name || disable $name
 563 void foo(void){ __asm__ volatile($asm); }
 564 EOF
 565 }
 566
 567 check_yasm(){
 568     log check_yasm "$@"
 569     echo "$1" > $TMPS
 570     log_file $TMPS
 571     shift 1
 572     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 573 }
 574
 575 check_ld(){
 576     log check_ld "$@"
 577     check_cc || return
 578     flags=''
 579     libs=''
 580     for f; do
 581         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 582     done
 583     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 584 }
 585
 586 check_cppflags(){
 587     log check_cppflags "$@"
 588     check_cc "$@" <<EOF && add_cppflags "$@"
 589 int x;
 590 EOF
 591 }
 592
 593 check_cflags(){
 594     log check_cflags "$@"
 595     check_cc "$@" <<EOF && add_cflags "$@"
 596 int x;
 597 EOF
 598 }
 599
 600 check_ldflags(){
 601     log check_ldflags "$@"
 602     check_ld "$@" <<EOF && add_ldflags "$@"
 603 int main(void){ return 0; }
 604 EOF
 605 }
 606
 607 check_header(){
 608     log check_header "$@"
 609     header=$1
 610     shift
 611     disable_safe $header
 612     check_cpp "$@" <<EOF && enable_safe $header
 613 #include <$header>
 614 int x;
 615 EOF
 616 }
 617
 618 check_func(){
 619     log check_func "$@"
 620     func=$1
 621     shift
 622     disable $func
 623     check_ld "$@" <<EOF && enable $func
 624 extern int $func();
 625 int main(void){ $func(); }
 626 EOF
 627 }
 628
 629 check_func_headers(){
 630     log check_func_headers "$@"
 631     headers=$1
 632     func=$2
 633     shift 2
 634     disable $func
 635     incs=""
 636     for hdr in $headers; do
 637         incs="$incs
 638 #include <$hdr>"
 639     done
 640     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 641 $incs
 642 int main(int argc, char **argv){
 643     (void) $func;
 644     return 0;
 645 }
 646 EOF
 647 }
 648
 649 check_cpp_condition(){
 650     log check_cpp_condition "$@"
 651     header=$1
 652     condition=$2
 653     check_cpp <<EOF
 654 #include <$header>
 655 #if !($condition)
 656 #error "unsatisfied condition: $condition"
 657 #endif
 658 EOF
 659 }
 660
 661 check_lib(){
 662     log check_lib "$@"
 663     header="$1"
 664     func="$2"
 665     shift 2
 666     temp_extralibs "$@"
 667     check_header $header && check_func $func && add_extralibs "$@"
 668     err=$?
 669     restore_flags
 670     return $err
 671 }
 672
 673 check_lib2(){
 674     log check_lib2 "$@"
 675     headers="$1"
 676     func="$2"
 677     shift 2
 678     temp_extralibs "$@"
 679     check_func_headers "$headers" $func && add_extralibs "$@"
 680     err=$?
 681     restore_flags
 682     return $err
 683 }
 684
 685 check_exec(){
 686     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 687 }
 688
 689 check_exec_crash(){
 690     code=$(cat)
 691
 692     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 693     # are safe but may not be available everywhere.  Thus we use
 694     # raise(SIGTERM) instead.  The check is run in a subshell so we
 695     # can redirect the "Terminated" message from the shell.  SIGBUS
 696     # is not defined by standard C so it is used conditionally.
 697
 698     (check_exec "$@") >> $logfile 2>&1 <<EOF
 699 #include <signal.h>
 700 static void sighandler(int sig){
 701     raise(SIGTERM);
 702 }
 703 int main(void){
 704     signal(SIGILL, sighandler);
 705     signal(SIGFPE, sighandler);
 706     signal(SIGSEGV, sighandler);
 707 #ifdef SIGBUS
 708     signal(SIGBUS, sighandler);
 709 #endif
 710     { $code }
 711 }
 712 EOF
 713 }
 714
 715 check_type(){
 716     log check_type "$@"
 717     headers=$1
 718     type=$2
 719     shift 2
 720     disable $type
 721     incs=""
 722     for hdr in $headers; do
 723         incs="$incs
 724 #include <$hdr>"
 725     done
 726     check_cc "$@" <<EOF && enable $type
 727 $incs
 728 $type v;
 729 EOF
 730 }
 731
 732 require(){
 733     name="$1"
 734     header="$2"
 735     func="$3"
 736     shift 3
 737     check_lib $header $func "$@" || die "ERROR: $name not found"
 738 }
 739
 740 require2(){
 741     name="$1"
 742     headers="$2"
 743     func="$3"
 744     shift 3
 745     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 746 }
 747
 748 check_foo_config(){
 749     cfg=$1
 750     pkg=$2
 751     header=$3
 752     func=$4
 753     shift 4
 754     disable $cfg
 755     check_cmd ${pkg}-config --version
 756     err=$?
 757     if test "$err" = 0; then
 758         temp_cflags $(${pkg}-config --cflags)
 759         temp_extralibs $(${pkg}-config --libs)
 760         check_lib "$@" $header $func && enable $cfg
 761     fi
 762     return $err
 763 }
 764
 765 apply(){
 766     file=$1
 767     shift
 768     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 769 }
 770
 771 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 772 # system-dependent things.
 773
 774 COMPONENT_LIST="
 775     bsfs
 776     decoders
 777     demuxers
 778     encoders
 779     filters
 780     hwaccels
 781     indevs
 782     muxers
 783     outdevs
 784     parsers
 785     protocols
 786 "
 787
 788 CONFIG_LIST="
 789     $COMPONENT_LIST
 790     aandct
 791     avfilter
 792     avfilter_lavf
 793     avisynth
 794     beos_netserver
 795     bzlib
 796     fastdiv
 797     ffmpeg
 798     ffplay
 799     ffserver
 800     fft
 801     golomb
 802     gpl
 803     gprof
 804     gray
 805     hardcoded_tables
 806     ipv6
 807     libdc1394
 808     libdirac
 809     libfaac
 810     libfaad
 811     libfaadbin
 812     libgsm
 813     libmp3lame
 814     libnut
 815     libopencore_amrnb
 816     libopencore_amrwb
 817     libopenjpeg
 818     libschroedinger
 819     libspeex
 820     libtheora
 821     libvorbis
 822     libx264
 823     libxvid
 824     mdct
 825     memalign_hack
 826     mlib
 827     mpegaudio_hp
 828     network
 829     nonfree
 830     postproc
 831     powerpc_perf
 832     rdft
 833     runtime_cpudetect
 834     shared
 835     small
 836     static
 837     swscale_alpha
 838     vaapi
 839     vdpau
 840     version3
 841     x11grab
 842     zlib
 843 "
 844
 845 THREADS_LIST='
 846     beosthreads
 847     os2threads
 848     pthreads
 849     w32threads
 850 '
 851
 852 ARCH_LIST='
 853     alpha
 854     arm
 855     bfin
 856     ia64
 857     m68k
 858     mips
 859     mips64
 860     parisc
 861     ppc
 862     ppc64
 863     s390
 864     sh4
 865     sparc
 866     sparc64
 867     x86
 868     x86_32
 869     x86_64
 870 '
 871
 872 ARCH_EXT_LIST='
 873     altivec
 874     amd3dnow
 875     amd3dnowext
 876     armv5te
 877     armv6
 878     armv6t2
 879     armvfp
 880     iwmmxt
 881     mmi
 882     mmx
 883     mmx2
 884     neon
 885     ppc4xx
 886     sse
 887     ssse3
 888     vis
 889 '
 890
 891 HAVE_LIST="
 892     $ARCH_EXT_LIST
 893     $THREADS_LIST
 894     alsa_asoundlib_h
 895     altivec_h
 896     arpa_inet_h
 897     bigendian
 898     bswap
 899     closesocket
 900     cmov
 901     conio_h
 902     dcbzl
 903     dev_bktr_ioctl_bt848_h
 904     dev_bktr_ioctl_meteor_h
 905     dev_ic_bt8xx_h
 906     dev_video_meteor_ioctl_meteor_h
 907     dev_video_bktr_ioctl_bt848_h
 908     dlfcn_h
 909     dlopen
 910     dos_paths
 911     ebp_available
 912     ebx_available
 913     fast_64bit
 914     fast_cmov
 915     fast_unaligned
 916     fork
 917     gethrtime
 918     GetProcessTimes
 919     getrusage
 920     inet_aton
 921     inline_asm
 922     ldbrx
 923     libdc1394_1
 924     libdc1394_2
 925     llrint
 926     log2
 927     loongson
 928     lrint
 929     lrintf
 930     lzo1x_999_compress
 931     machine_ioctl_bt848_h
 932     machine_ioctl_meteor_h
 933     malloc_h
 934     memalign
 935     mkstemp
 936     pld
 937     posix_memalign
 938     round
 939     roundf
 940     sdl
 941     sdl_video_size
 942     setmode
 943     socklen_t
 944     soundcard_h
 945     poll_h
 946     sys_mman_h
 947     sys_resource_h
 948     sys_select_h
 949     sys_soundcard_h
 950     sys_videoio_h
 951     ten_operands
 952     termios_h
 953     threads
 954     truncf
 955     VirtualAlloc
 956     winsock2_h
 957     xform_asm
 958     yasm
 959 "
 960
 961 # options emitted with CONFIG_ prefix but not available on command line
 962 CONFIG_EXTRA="
 963     gplv3
 964     lgplv3
 965 "
 966
 967 CMDLINE_SELECT="
 968     $ARCH_EXT_LIST
 969     $CONFIG_LIST
 970     $THREADS_LIST
 971     cross_compile
 972     debug
 973     extra_warnings
 974     logging
 975     optimizations
 976     stripping
 977     yasm
 978 "
 979
 980 PATHS_LIST='
 981     bindir
 982     datadir
 983     incdir
 984     libdir
 985     mandir
 986     prefix
 987     shlibdir
 988 '
 989
 990 CMDLINE_SET="
 991     $PATHS_LIST
 992     arch
 993     as
 994     build_suffix
 995     cc
 996     cpu
 997     cross_prefix
 998     dep_cc
 999     extra_version
1000     host_cc
1001     host_cflags
1002     host_ldflags
1003     host_libs
1004     host_os
1005     ld
1006     logfile
1007     nm
1008     source_path
1009     sysinclude
1010     sysroot
1011     target_exec
1012     target_os
1013     target_path
1014 "
1015
1016 # code dependency declarations
1017
1018 # architecture extensions
1019 altivec_deps="ppc"
1020 amd3dnow_deps="mmx"
1021 amd3dnowext_deps="amd3dnow"
1022 armv5te_deps="arm"
1023 armv6_deps="arm"
1024 armv6t2_deps="arm"
1025 armvfp_deps="arm"
1026 iwmmxt_deps="arm"
1027 mmi_deps="mips"
1028 mmx_deps="x86"
1029 mmx2_deps="mmx"
1030 neon_deps="arm"
1031 ppc4xx_deps="ppc"
1032 sse_deps="mmx"
1033 ssse3_deps="sse"
1034 vis_deps="sparc"
1035
1036 # decoders / encoders / hardware accelerators
1037 aac_decoder_select="fft mdct"
1038 ac3_decoder_select="fft mdct"
1039 atrac3_decoder_select="fft mdct"
1040 cavs_decoder_select="golomb"
1041 cook_decoder_select="fft mdct"
1042 cscd_decoder_suggest="zlib"
1043 dca_decoder_select="fft mdct"
1044 dnxhd_encoder_select="aandct"
1045 dxa_decoder_select="zlib"
1046 eac3_decoder_select="fft mdct"
1047 eatgq_decoder_select="aandct"
1048 eatqi_decoder_select="aandct"
1049 ffv1_decoder_select="golomb"
1050 flac_decoder_select="golomb"
1051 flac_encoder_select="golomb"
1052 flashsv_decoder_select="zlib"
1053 flashsv_encoder_select="zlib"
1054 flv_encoder_select="aandct"
1055 h261_encoder_select="aandct"
1056 h263_encoder_select="aandct"
1057 h263_vaapi_hwaccel_deps="va_va_h"
1058 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1059 h263p_encoder_select="aandct"
1060 h264_decoder_select="golomb"
1061 h264_vaapi_hwaccel_deps="va_va_h"
1062 h264_vaapi_hwaccel_select="vaapi"
1063 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1064 h264_vdpau_decoder_select="vdpau h264_decoder"
1065 imc_decoder_select="fft mdct"
1066 jpegls_decoder_select="golomb"
1067 jpegls_encoder_select="golomb"
1068 ljpeg_encoder_select="aandct"
1069 loco_decoder_select="golomb"
1070 mjpeg_encoder_select="aandct"
1071 mpeg1video_encoder_select="aandct"
1072 mpeg2video_encoder_select="aandct"
1073 mpeg4_encoder_select="aandct"
1074 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1075 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1076 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1077 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1078 mpeg2_vaapi_hwaccel_deps="va_va_h"
1079 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1080 mpeg4_vaapi_hwaccel_deps="va_va_h"
1081 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1082 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1083 msmpeg4v1_encoder_select="aandct"
1084 msmpeg4v2_encoder_select="aandct"
1085 msmpeg4v3_encoder_select="aandct"
1086 nellymoser_decoder_select="fft mdct"
1087 nellymoser_encoder_select="fft mdct"
1088 png_decoder_select="zlib"
1089 png_encoder_select="zlib"
1090 qdm2_decoder_select="fft mdct rdft"
1091 rv10_encoder_select="aandct"
1092 rv20_encoder_select="aandct"
1093 rv30_decoder_select="golomb"
1094 rv40_decoder_select="golomb"
1095 shorten_decoder_select="golomb"
1096 sonic_decoder_select="golomb"
1097 sonic_encoder_select="golomb"
1098 sonic_ls_encoder_select="golomb"
1099 svq3_decoder_select="golomb"
1100 svq3_decoder_suggest="zlib"
1101 tiff_decoder_suggest="zlib"
1102 tiff_encoder_suggest="zlib"
1103 tscc_decoder_select="zlib"
1104 vc1_vaapi_hwaccel_deps="va_va_h"
1105 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1106 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1107 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1108 vorbis_decoder_select="fft mdct"
1109 vorbis_encoder_select="fft mdct"
1110 wmav1_decoder_select="fft mdct"
1111 wmav1_encoder_select="fft mdct"
1112 wmav2_decoder_select="fft mdct"
1113 wmav2_encoder_select="fft mdct"
1114 wmv1_encoder_select="aandct"
1115 wmv2_encoder_select="aandct"
1116 wmv3_vaapi_hwaccel_deps="va_va_h"
1117 wmv3_vaapi_hwaccel_select="vaapi wmv3_decoder"
1118 wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1119 wmv3_vdpau_decoder_select="vdpau wmv3_decoder"
1120 zlib_decoder_select="zlib"
1121 zlib_encoder_select="zlib"
1122 zmbv_decoder_select="zlib"
1123 zmbv_encoder_select="zlib"
1124
1125 # parsers
1126 h264_parser_select="golomb"
1127
1128 # external libraries
1129 libdirac_decoder_deps="libdirac !libschroedinger"
1130 libdirac_encoder_deps="libdirac"
1131 libfaac_encoder_deps="libfaac"
1132 libfaad_decoder_deps="libfaad"
1133 libfaadbin_decoder_extralibs='$ldl'
1134 libgsm_decoder_deps="libgsm"
1135 libgsm_encoder_deps="libgsm"
1136 libgsm_ms_decoder_deps="libgsm"
1137 libgsm_ms_encoder_deps="libgsm"
1138 libmp3lame_encoder_deps="libmp3lame"
1139 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1140 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1141 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1142 libopenjpeg_decoder_deps="libopenjpeg"
1143 libschroedinger_decoder_deps="libschroedinger"
1144 libschroedinger_encoder_deps="libschroedinger"
1145 libspeex_decoder_deps="libspeex"
1146 libtheora_encoder_deps="libtheora"
1147 libvorbis_encoder_deps="libvorbis"
1148 libx264_encoder_deps="libx264"
1149 libxvid_encoder_deps="libxvid"
1150
1151 # demuxers / muxers
1152 ac3_demuxer_deps="ac3_parser"
1153 avisynth_demuxer_deps="avisynth"
1154 dirac_demuxer_deps="dirac_parser"
1155 libnut_demuxer_deps="libnut"
1156 libnut_muxer_deps="libnut"
1157 matroska_demuxer_suggest="zlib bzlib"
1158 mov_demuxer_suggest="zlib"
1159 mp3_demuxer_deps="mpegaudio_parser"
1160 redir_demuxer_deps="network"
1161 rtp_muxer_deps="network rtp_protocol"
1162 rtsp_demuxer_deps="sdp_demuxer"
1163 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1164
1165 # indevs / outdevs
1166 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1167 alsa_indev_extralibs="-lasound"
1168 alsa_outdev_deps="alsa_asoundlib_h"
1169 alsa_outdev_extralibs="-lasound"
1170 audio_beos_indev_deps="audio_beos"
1171 audio_beos_indev_extralibs="-lmedia -lbe"
1172 audio_beos_outdev_deps="audio_beos"
1173 audio_beos_outdev_extralibs="-lmedia -lbe"
1174 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1175 dv1394_indev_deps="dv1394 dv_demuxer"
1176 jack_indev_deps="jack_jack_h"
1177 jack_indev_extralibs="-ljack"
1178 libdc1394_indev_deps="libdc1394"
1179 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1180 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1181 v4l_indev_deps="linux_videodev_h"
1182 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1183 vfwcap_indev_deps="capCreateCaptureWindow"
1184 vfwcap_indev_extralibs="-lvfw32"
1185 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1186 x11_grab_device_indev_extralibs="-lX11 -lXext"
1187
1188 # protocols
1189 gopher_protocol_deps="network"
1190 http_protocol_deps="network"
1191 rtp_protocol_deps="udp_protocol"
1192 tcp_protocol_deps="network"
1193 udp_protocol_deps="network"
1194
1195 # filters
1196 movie_filter_deps="avfilter_lavf"
1197
1198 # programs
1199 ffplay_deps="sdl"
1200 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1201 ffserver_extralibs='$ldl'
1202
1203
1204 # default parameters
1205
1206 logfile="config.err"
1207
1208 # installation paths
1209 prefix_default="/usr/local"
1210 bindir_default='${prefix}/bin'
1211 datadir_default='${prefix}/share/ffmpeg'
1212 incdir_default='${prefix}/include'
1213 libdir_default='${prefix}/lib'
1214 mandir_default='${prefix}/share/man'
1215 shlibdir_default="$libdir_default"
1216
1217 # toolchain
1218 ar="ar"
1219 cc_default="gcc"
1220 host_cc_default="gcc"
1221 ln_s="ln -sf"
1222 nm_default="nm"
1223 objformat="elf"
1224 ranlib="ranlib"
1225 strip="strip"
1226 yasmexe="yasm"
1227
1228 # machine
1229 arch=$(uname -m)
1230 cpu="generic"
1231
1232 # OS
1233 target_os=$(tolower $(uname -s))
1234 host_os=$target_os
1235
1236 # configurable options
1237 enable debug
1238 enable fastdiv
1239 enable ffmpeg
1240 enable ffplay
1241 enable ffserver
1242 enable ipv6
1243 enable mpegaudio_hp
1244 enable network
1245 enable optimizations
1246 enable protocols
1247 enable static
1248 enable stripping
1249 enable swscale_alpha
1250
1251 # build settings
1252 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1253 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1254 FFSERVERLDFLAGS=-Wl,-E
1255 LIBPREF="lib"
1256 LIBSUF=".a"
1257 FULLNAME='$(NAME)$(BUILDSUF)'
1258 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1259 SLIBPREF="lib"
1260 SLIBSUF=".so"
1261 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1262 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1263 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1264 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1265
1266 CC_O='-o $@'
1267
1268 host_cflags='-O3 -g -Wall'
1269 host_libs='-lm'
1270
1271 target_path='.'
1272
1273 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1274 # full relative path for objects in subdirectories for non-recursive Make.
1275 DEPEND_CMD='$(DEPCC) $(CPPFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1276
1277 # find source path
1278 source_path="$(dirname "$0")"
1279 enable source_path_used
1280 if test -z "$source_path" -o "$source_path" = "." ; then
1281     source_path="$(pwd)"
1282     disable source_path_used
1283 else
1284     source_path="$(cd "$source_path"; pwd)"
1285     echo "$source_path" | grep -q '[[:blank:]]' &&
1286         die "Out of tree builds are impossible with whitespace in source path."
1287     test -e "$source_path/config.h" &&
1288         die "Out of tree builds are impossible with config.h in source dir."
1289 fi
1290
1291 for v in "$@"; do
1292     r=${v#*=}
1293     l=${v%"$r"}
1294     r=$(sh_quote "$r")
1295     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1296 done
1297
1298 find_things(){
1299     thing=$1
1300     pattern=$2
1301     file=$source_path/$3
1302     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1303 }
1304
1305 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1306 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1307 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1308 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1309 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1310 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1311 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1312 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1313 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1314 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1315 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1316
1317 enable $ARCH_EXT_LIST \
1318        $DECODER_LIST \
1319        $ENCODER_LIST \
1320        $HWACCEL_LIST \
1321        $PARSER_LIST \
1322        $BSF_LIST \
1323        $DEMUXER_LIST \
1324        $MUXER_LIST \
1325        $FILTER_LIST \
1326        $PROTOCOL_LIST \
1327        $INDEV_LIST \
1328        $OUTDEV_LIST \
1329
1330 die_unknown(){
1331     echo "Unknown option \"$1\"."
1332     echo "See $0 --help for available options."
1333     exit 1
1334 }
1335
1336 show_list() {
1337     suffix=_$1
1338     shift
1339     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1340     exit 0
1341 }
1342
1343 for opt do
1344     optval="${opt#*=}"
1345     case "$opt" in
1346     --extra-cflags=*) add_cflags $optval
1347     ;;
1348     --extra-ldflags=*) add_ldflags $optval
1349     ;;
1350     --extra-libs=*) add_extralibs $optval
1351     ;;
1352     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1353     ;;
1354     --enable-debug=*) debuglevel="$optval"
1355     ;;
1356     --enable-*=*|--disable-*=*)
1357     eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1358     case "$thing" in
1359         encoder|decoder|hwaccel|muxer|demuxer|indev|outdev|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1360         *) die_unknown "$opt" ;;
1361     esac
1362     ;;
1363     --enable-?*|--disable-?*)
1364     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1365     if is_in $option $COMPONENT_LIST; then
1366         test $action = disable && action=unset
1367         eval $action \$$(toupper ${option%s})_LIST
1368     elif is_in $option $CMDLINE_SELECT; then
1369         $action $option
1370     else
1371         die_unknown $opt
1372     fi
1373     ;;
1374     --list-*)
1375         NAME="${opt#--list-}"
1376         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1377         NAME=${NAME%s}
1378         eval show_list $NAME \$$(toupper $NAME)_LIST
1379     ;;
1380     --help|-h) show_help
1381     ;;
1382     *)
1383     optname="${opt%%=*}"
1384     optname="${optname#--}"
1385     optname=$(echo "$optname" | sed 's/-/_/g')
1386     is_in $optname $CMDLINE_SET || die_unknown $opt
1387     eval $optname='$optval'
1388     ;;
1389     esac
1390 done
1391
1392 disabled logging && logfile=/dev/null
1393
1394 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1395 set >> $logfile
1396
1397 test -n "$cross_prefix" && enable cross_compile
1398
1399 ar="${cross_prefix}${ar}"
1400 cc_default="${cross_prefix}${cc_default}"
1401 nm_default="${cross_prefix}${nm_default}"
1402 ranlib="${cross_prefix}${ranlib}"
1403 strip="${cross_prefix}${strip}"
1404
1405 sysinclude_default="${sysroot}/usr/include"
1406
1407 set_default cc nm sysinclude
1408 as_default=$cc
1409 enabled cross_compile || host_cc_default=$cc
1410 set_default host_cc
1411
1412 exesuf() {
1413     case $1 in
1414         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1415     esac
1416 }
1417
1418 EXESUF=$(exesuf $target_os)
1419 HOSTEXESUF=$(exesuf $host_os)
1420
1421 # set temporary file name
1422 : ${TMPDIR:=$TEMPDIR}
1423 : ${TMPDIR:=$TMP}
1424 : ${TMPDIR:=/tmp}
1425
1426 if ! check_cmd type mktemp; then
1427     # simple replacement for missing mktemp
1428     # NOT SAFE FOR GENERAL USE
1429     mktemp(){
1430         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1431     }
1432 fi
1433
1434 tmpfile(){
1435     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1436         (set -C; exec > $tmp) 2>/dev/null ||
1437         die "Unable to create temoporary file in $TMPDIR."
1438     append TMPFILES $tmp
1439     eval $1=$tmp
1440 }
1441
1442 trap 'rm -f -- $TMPFILES' EXIT
1443 trap exit HUP INT TERM
1444
1445 tmpfile TMPC  .c
1446 tmpfile TMPE  $EXESUF
1447 tmpfile TMPH  .h
1448 tmpfile TMPO  .o
1449 tmpfile TMPS  .S
1450 tmpfile TMPSH .sh
1451
1452 unset -f mktemp
1453
1454 # make sure we can execute files in $TMPDIR
1455 cat > $TMPSH 2>> $logfile <<EOF
1456 #! /bin/sh
1457 EOF
1458 chmod +x $TMPSH >> $logfile 2>&1
1459 if ! $TMPSH >> $logfile 2>&1; then
1460     cat <<EOF
1461 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1462 variable to another directory and make sure that it is not mounted noexec.
1463 EOF
1464     die "Sanity test failed."
1465 fi
1466
1467 if   $cc --version 2>/dev/null | grep -qi gcc; then
1468     cc_type=gcc
1469 elif $cc --version 2>/dev/null | grep -q Intel; then
1470     cc_type=icc
1471 elif $cc -v 2>&1 | grep -q xlc; then
1472     cc_type=xlc
1473 elif $cc -V 2>/dev/null | grep -q Compaq; then
1474     cc_type=ccc
1475     DEPEND_CMD='$(CC) $(CPPFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1476     debuglevel=3
1477     add_ldflags -Wl,-z,now # calls to libots crash without this
1478 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1479     test -d "$sysroot" || die "No valid sysroot specified."
1480     cc_type=armcc
1481     armcc_conf="$PWD/armcc.conf"
1482     $cc --arm_linux_configure                 \
1483         --arm_linux_config_file="$armcc_conf" \
1484         --configure_sysroot="$sysroot"        \
1485         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1486         die "Error creating armcc configuration file."
1487     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1488     as_default="${cross_prefix}gcc"
1489 fi
1490
1491 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1492
1493 : ${dep_cc_default:=$cc}
1494 : ${ld_default:=$cc}
1495 set_default as dep_cc ld
1496
1497 if test -n "$sysroot"; then
1498     case "$cc_type" in
1499         gcc)
1500             add_cppflags --sysroot="$sysroot"
1501             add_ldflags --sysroot="$sysroot"
1502         ;;
1503     esac
1504 fi
1505
1506 # compiler sanity check
1507 check_exec <<EOF
1508 int main(void){ return 0; }
1509 EOF
1510 if test "$?" != 0; then
1511     echo "$cc is unable to create an executable file."
1512     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1513         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1514         echo "Only do this if you know what cross compiling means."
1515     fi
1516     die "C compiler test failed."
1517 fi
1518
1519 check_cflags -std=c99
1520 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1521 #include <stdlib.h>
1522 EOF
1523 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1524 #include <stdlib.h>
1525 EOF
1526
1527 case "$arch" in
1528     alpha)
1529         arch="alpha"
1530         enable fast_64bit
1531         check_cflags -mieee
1532     ;;
1533     arm|armv[4567]*l)
1534         arch="arm"
1535     ;;
1536     avr32)
1537     ;;
1538     bfin)
1539         arch="bfin"
1540     ;;
1541     ia64)
1542         arch="ia64"
1543         enable fast_64bit
1544     ;;
1545     m68k)
1546         arch="m68k"
1547     ;;
1548     mips|mipsel|IP*)
1549         arch="mips"
1550     ;;
1551     mips64)
1552         arch="mips"
1553         subarch="mips64"
1554         enable fast_64bit
1555     ;;
1556     parisc|hppa)
1557         arch="parisc"
1558     ;;
1559     parisc64|hppa64)
1560         arch="parisc"
1561         enable fast_64bit
1562     ;;
1563     "Power Macintosh"|ppc|powerpc)
1564         arch="ppc"
1565         enable fast_unaligned
1566     ;;
1567     ppc64)
1568         arch="ppc"
1569         subarch="ppc64"
1570         enable fast_64bit
1571         enable fast_unaligned
1572     ;;
1573     s390|s390x)
1574         arch="s390"
1575     ;;
1576     sh4|sh)
1577         arch="sh4"
1578     ;;
1579     sparc)
1580         arch="sparc"
1581     ;;
1582     sun4u|sparc64)
1583         arch="sparc"
1584         subarch="sparc64"
1585         enable fast_64bit
1586     ;;
1587     i386|i486|i586|i686|i86pc|BePC)
1588         arch="x86"
1589         subarch="x86_32"
1590         enable fast_unaligned
1591     ;;
1592     x86_64|amd64)
1593         arch="x86"
1594         subarch="x86_32"
1595         enable cmov
1596         enable fast_cmov
1597         enable fast_unaligned
1598         check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1599         int test[sizeof(char*) - 7];
1600 EOF
1601     ;;
1602     *)
1603         arch="unknown"
1604     ;;
1605 esac
1606
1607 enable $arch $subarch
1608
1609 # OS specific
1610 case $target_os in
1611     beos|haiku|zeta)
1612         prefix_default="$HOME/config"
1613         # helps building libavcodec
1614         add_cppflags -DPIC
1615         add_cflags -fomit-frame-pointer
1616         # 3 gcc releases known for BeOS, each with ugly bugs
1617         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1618         case "$gcc_version" in
1619           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1620             disable mmx
1621             ;;
1622           *20010315*) echo "BeBits gcc"
1623             add_cflags -fno-expensive-optimizations
1624             ;;
1625         esac
1626         SHFLAGS=-nostart
1627         # enable BeOS things
1628         enable audio_beos
1629         # no need for libm, but the inet stuff
1630         # Check for BONE
1631         # XXX: actually should check for NOT net_server
1632         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1633             network_extralibs="-lbind -lsocket"
1634         else
1635             enable beos_netserver
1636             network_extralibs="-lnet"
1637         fi ;;
1638     sunos)
1639         FFSERVERLDFLAGS=""
1640         SHFLAGS='-shared -Wl,-h,$$(@F)'
1641         network_extralibs="-lsocket -lnsl"
1642         add_cppflags -D__EXTENSIONS__
1643         ;;
1644     netbsd)
1645         oss_indev_extralibs="-lossaudio"
1646         oss_outdev_extralibs="-lossaudio"
1647         ;;
1648     openbsd)
1649         disable need_memalign
1650         LIBOBJFLAGS='$(PIC)'
1651         SHFLAGS='-shared'
1652         oss_indev_extralibs="-lossaudio"
1653         oss_outdev_extralibs="-lossaudio"
1654         ;;
1655     freebsd|dragonfly)
1656         disable need_memalign
1657         ;;
1658     bsd/os)
1659         osextralibs="-lpoll -lgnugetopt"
1660         strip="strip -d"
1661         ;;
1662     darwin)
1663         disable need_memalign
1664         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1665         strip="strip -x"
1666         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1667         SLIBSUF=".dylib"
1668         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1669         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1670         FFSERVERLDFLAGS=-Wl,-bind_at_load
1671         objformat="macho"
1672         enabled x86_64 && objformat="macho64"
1673         ;;
1674     mingw32*)
1675         target_os=mingw32
1676         LIBTARGET=i386
1677         if enabled x86_64; then
1678             disable need_memalign
1679             LIBTARGET=x64
1680         fi
1681         shlibdir_default="$bindir_default"
1682         disable ffserver
1683         SLIBPREF=""
1684         SLIBSUF=".dll"
1685         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1686         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1687         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1688         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1689             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1690         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1691         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1692         objformat="win32"
1693         enable dos_paths
1694         check_cflags -fno-common
1695         if ! enabled x86_64; then
1696             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1697                 die "ERROR: MinGW runtime version must be >= 3.15."
1698             enabled_any avisynth vfwcap_demuxer &&
1699                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1700                   die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1701             fi
1702         ;;
1703     cygwin*)
1704         target_os=cygwin
1705         shlibdir_default="$bindir_default"
1706         SLIBPREF="cyg"
1707         SLIBSUF=".dll"
1708         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1709         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1710         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1711         objformat="win32"
1712         enable dos_paths
1713         check_cflags -fno-common
1714         ;;
1715     *-dos|freedos|opendos)
1716         disable ffplay ffserver
1717         disable $INDEV_LIST $OUTDEV_LIST
1718         network_extralibs="-lsocket"
1719         objformat="coff"
1720         enable dos_paths
1721         ;;
1722     linux)
1723         enable dv1394
1724         ;;
1725     irix*)
1726         target_os=irix
1727         ranlib="echo ignoring ranlib"
1728         ;;
1729     os/2*)
1730         strip="lxlite"
1731         ln_s="cp -f"
1732         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1733         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1734         FFSERVERLDFLAGS=""
1735         LIBSUF="_s.a"
1736         SLIBPREF=""
1737         SLIBSUF=".dll"
1738         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1739         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1740         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1741           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1742           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1743           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1744           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1745           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1746         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1747           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1748         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1749         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1750         enable dos_paths
1751         ;;
1752     gnu/kfreebsd)
1753         ;;
1754     gnu)
1755         ;;
1756
1757     *)
1758         die "Unknown OS '$target_os'."
1759         ;;
1760 esac
1761
1762 set_default $PATHS_LIST
1763
1764 add_extralibs $osextralibs
1765
1766 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1767 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1768
1769 # we need to build at least one lib type
1770 if ! enabled_any static shared; then
1771     cat <<EOF
1772 At least one library type must be built.
1773 Specify --enable-static to build the static libraries or --enable-shared to
1774 build the shared libraries as well. To only build the shared libraries specify
1775 --disable-static in addition to --enable-shared.
1776 EOF
1777     exit 1;
1778 fi
1779
1780 disabled static && LIBNAME=""
1781
1782 if enabled_any libfaad libfaadbin ; then
1783     if check_header faad.h; then
1784         check_cc <<EOF
1785 #include <faad.h>
1786 #ifndef FAAD2_VERSION
1787 ok faad1
1788 #endif
1789 int main(void) { return 0; }
1790 EOF
1791         test $? = 0 && enable libfaad2
1792     else
1793         die "FAAD test failed."
1794     fi
1795 fi
1796
1797
1798 die_license_disabled() {
1799     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
1800 }
1801
1802 die_license_disabled gpl libfaad2
1803 die_license_disabled gpl libx264
1804 die_license_disabled gpl libxvid
1805 die_license_disabled gpl postproc
1806 die_license_disabled gpl x11grab
1807
1808 die_license_disabled nonfree libfaac
1809
1810 die_license_disabled version3 libopencore_amrnb
1811 die_license_disabled version3 libopencore_amrwb
1812
1813 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
1814
1815 check_deps $ARCH_EXT_LIST
1816
1817 test -z "$need_memalign" && need_memalign="$mmx"
1818
1819 #Darwin CC versions
1820 if test $target_os = darwin; then
1821     if enabled xlc; then
1822         add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1823     else
1824         add_cflags -pipe
1825         check_cflags -force_cpusubtype_ALL
1826         check_cflags -Wno-sign-compare
1827         enabled shared || check_cflags -mdynamic-no-pic
1828     fi
1829 fi
1830
1831 disabled optimizations || check_cflags -fomit-frame-pointer
1832
1833 # Add processor-specific flags
1834 if test $cpu != "generic"; then
1835     warn_altivec(){
1836         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1837     }
1838     case $cpu in
1839         601|ppc601|PowerPC601)
1840             add_cflags -mcpu=601
1841             warn_altivec enabled PPC601
1842         ;;
1843         603*|ppc603*|PowerPC603*)
1844             add_cflags -mcpu=603
1845             warn_altivec enabled PPC603
1846         ;;
1847         604*|ppc604*|PowerPC604*)
1848             add_cflags -mcpu=604
1849             warn_altivec enabled PPC604
1850         ;;
1851         G3|g3|75*|ppc75*|PowerPC75*)
1852             add_cflags -mcpu=750 -mpowerpc-gfxopt
1853             warn_altivec enabled PPC75x
1854         ;;
1855         G4|g4|745*|ppc745*|PowerPC745*)
1856             add_cflags -mcpu=7450 -mpowerpc-gfxopt
1857             warn_altivec disabled PPC745x
1858         ;;
1859         74*|ppc74*|PowerPC74*)
1860             add_cflags -mcpu=7400 -mpowerpc-gfxopt
1861             warn_altivec disabled PPC74xx
1862         ;;
1863         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1864             add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1865             warn_altivec disabled PPC970
1866         ;;
1867         Cell|CELL|cell)
1868             add_cflags -mcpu=cell
1869             warn_altivec disabled Cell
1870             enable ldbrx
1871         ;;
1872         # targets that do NOT support conditional mov (cmov)
1873         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1874             add_cflags -march=$cpu
1875             disable cmov
1876         ;;
1877         # targets that do support conditional mov (cmov)
1878         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1879             add_cflags -march=$cpu
1880             enable cmov
1881             enable fast_cmov
1882         ;;
1883         # targets that do support conditional mov but on which it's slow
1884         pentium4|pentium4m|prescott|nocona)
1885             add_cflags -march=$cpu
1886             enable cmov
1887             disable fast_cmov
1888         ;;
1889         sparc64)
1890             add_cflags -mcpu=v9
1891         ;;
1892         arm11*|cortex*)
1893             add_cflags -mcpu=$cpu
1894             enable fast_unaligned
1895         ;;
1896         armv[67]*)
1897             add_cflags -march=$cpu
1898             enable fast_unaligned
1899         ;;
1900         armv*)
1901             add_cflags -march=$cpu
1902         ;;
1903         arm*)
1904             add_cflags -mcpu=$cpu
1905         ;;
1906         ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1907             enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1908         ;;
1909         bf*)
1910             add_cflags -mcpu=$cpu
1911         ;;
1912         mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1913             add_cflags -march=$cpu
1914         ;;
1915         *)
1916             echo "WARNING: Unknown CPU \"$cpu\", ignored."
1917         ;;
1918     esac
1919 fi
1920
1921 check_cc <<EOF || die "Symbol mangling check failed."
1922 int ff_extern;
1923 EOF
1924 sym=$($nm -P -g $TMPO | grep ff_extern)
1925 extern_prefix=${sym%%ff_extern*}
1926
1927 check_cc <<EOF && enable inline_asm
1928 void foo(void) { __asm__ volatile ("" ::); }
1929 EOF
1930
1931 if enabled x86; then
1932     # check whether EBP is available on x86
1933     # As 'i' is stored on the stack, this program will crash
1934     # if the base pointer is used to access it because the
1935     # base pointer is cleared in the inline assembly code.
1936     check_exec_crash <<EOF && enable ebp_available
1937     volatile int i=0;
1938     __asm__ volatile (
1939         "xorl %%ebp, %%ebp"
1940     ::: "%ebp");
1941     return i;
1942 EOF
1943
1944     # check wether EBX is available on x86
1945     check_asm ebx_available '"":::"%ebx"'
1946
1947     # check whether more than 10 operands are supported
1948     check_cc <<EOF && enable ten_operands
1949 int main(void) {
1950     int x=0;
1951     __asm__ volatile(
1952         ""
1953         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1954     );
1955     return 0;
1956 }
1957 EOF
1958
1959     # check whether binutils is new enough to compile SSSE3/MMX2
1960     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1961     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1962
1963     check_asm bswap '"bswap %%eax" ::: "%eax"'
1964
1965     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1966     enabled     x86_64        && append YASMFLAGS "-m amd64"
1967     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1968     case "$objformat" in
1969         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1970         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1971         *)                    append YASMFLAGS "-DPREFIX"  ;;
1972     esac
1973     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1974 fi
1975
1976 # check for assembler specific support
1977
1978 enabled mips && check_asm loongson '"dmult.g $1, $2, $3"'
1979
1980 enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1981 enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1982 enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
1983
1984 # check for SIMD availability
1985
1986 # AltiVec flags: The FSF version of GCC differs from the Apple version
1987 if enabled altivec; then
1988     check_cflags -maltivec -mabi=altivec &&
1989         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1990         check_cflags -faltivec
1991
1992     # check if our compiler supports Motorola AltiVec C API
1993     check_cc <<EOF || disable altivec
1994 $inc_altivec_h
1995 int main(void) {
1996     vector signed int v1, v2, v3;
1997     v1 = vec_add(v2,v3);
1998     return 0;
1999 }
2000 EOF
2001
2002     # check if our compiler supports braces for vector declarations
2003     check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2004 $inc_altivec_h
2005 int main (void) { (vector int) {1}; return 0; }
2006 EOF
2007 fi
2008
2009 # We have to check if pld is a nop and disable it.
2010 enabled arm     && check_asm pld     '"pld [r0]"'
2011 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2012 enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2013 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2014 enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2015 enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2016 enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2017 enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2018 enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
2019
2020 enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2021
2022 # ---
2023 # big/little-endian test
2024 check_cc <<EOF || die "endian test failed"
2025 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2026 EOF
2027 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2028
2029 # ---
2030 # check availability of some header files
2031
2032 if check_func dlopen; then
2033     ldl=
2034 elif check_func dlopen -ldl; then
2035     ldl=-ldl
2036 fi
2037
2038 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2039 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2040
2041 check_func  fork
2042 check_func  gethrtime
2043 check_func  getrusage
2044 check_func  inet_aton $network_extralibs
2045 check_func  memalign
2046 check_func  mkstemp
2047 check_func  posix_memalign
2048 check_func_headers io.h setmode
2049 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2050 check_func_headers windows.h GetProcessTimes
2051 check_func_headers windows.h VirtualAlloc
2052
2053 check_header conio.h
2054 check_header dlfcn.h
2055 check_header malloc.h
2056 check_header poll.h
2057 check_header sys/mman.h
2058 check_header sys/resource.h
2059 check_header sys/select.h
2060 check_header termios.h
2061 check_header vdpau/vdpau.h
2062 check_header vdpau/vdpau_x11.h
2063 check_header X11/extensions/XvMClib.h
2064
2065 if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
2066     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2067 fi
2068
2069 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2070 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2071
2072 # check for some common methods of building with pthread support
2073 # do this before the optional library checks as some of them require pthreads
2074 if enabled pthreads; then
2075     if check_func pthread_create; then
2076         :
2077     elif check_func pthread_create -pthread; then
2078         add_cflags -pthread
2079         add_extralibs -pthread
2080     elif check_func pthread_create -pthreads; then
2081         add_cflags -pthreads
2082         add_extralibs -pthreads
2083     elif check_func pthread_create -lpthreadGC2; then
2084         add_extralibs -lpthreadGC2
2085     elif ! check_lib pthread.h pthread_create -lpthread; then
2086         die "ERROR: can't find pthreads library"
2087     fi
2088 fi
2089
2090 for thread in $THREADS_LIST; do
2091     if enabled $thread; then
2092         test -n "$thread_type" &&
2093             die "ERROR: Only one thread type must be selected." ||
2094             thread_type="$thread"
2095     fi
2096 done
2097
2098 check_lib math.h sin -lm
2099 check_lib va/va.h vaInitialize -lva
2100
2101 # test for C99 functions in math.h
2102 for func in llrint log2 lrint lrintf round roundf truncf; do
2103     check_exec <<EOF && enable $func || disable $func
2104 #include <math.h>
2105 int main(void) { return ($func(3.999f) > 0)?0:1; }
2106 EOF
2107 done
2108
2109 # these are off by default, so fail if requested and not available
2110 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2111 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2112                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2113                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2114 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2115 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2116 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2117 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2118 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2119 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2120 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2121 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2122 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2123                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2124 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2125 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2126 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2127 enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2128                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2129                         die "ERROR: libx264 version must be >= 0.65."; }
2130 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2131 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2132
2133 # libdc1394 check
2134 if enabled libdc1394; then
2135     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2136         enable libdc1394_2; } ||
2137     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2138         enable libdc1394_1; } ||
2139     die "ERROR: No version of libdc1394 found "
2140 fi
2141
2142
2143 _restrict=
2144 for restrict_keyword in restrict __restrict__ __restrict; do
2145     check_cc <<EOF && _restrict=$restrict_keyword && break
2146 void foo(char * $restrict_keyword p);
2147 EOF
2148 done
2149
2150 ##########################################
2151 # SDL check
2152
2153 disable sdl_too_old
2154 disable sdl
2155 SDL_CONFIG="${cross_prefix}sdl-config"
2156 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2157     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2158     temp_cflags $sdl_cflags
2159     temp_extralibs $("${SDL_CONFIG}" --libs)
2160     if check_lib2 SDL.h SDL_Init; then
2161         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2162         if test "$_sdlversion" -lt 121 ; then
2163             enable sdl_too_old
2164         else
2165             enable sdl
2166             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2167 #include <SDL.h>
2168 int main(int argc, char **argv){
2169     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2170     int w = vi->current_w;
2171     return 0;
2172 }
2173 EOF
2174         fi
2175     fi
2176     restore_flags
2177 fi
2178
2179 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2180
2181 ##########################################
2182 # Network check
2183
2184 if enabled network; then
2185     check_type "sys/types.h sys/socket.h" socklen_t
2186     # Prefer arpa/inet.h over winsock2
2187     if check_header arpa/inet.h ; then
2188         check_func closesocket
2189     elif check_header winsock2.h ; then
2190         network_extralibs="-lws2_32"
2191         check_type ws2tcpip.h socklen_t
2192         check_func_headers winsock2.h closesocket
2193     else
2194         disable network
2195     fi
2196 fi
2197
2198 ##########################################
2199 # IPv6 check
2200
2201 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2202 #include <sys/types.h>
2203 #include <sys/socket.h>
2204 #include <netinet/in.h>
2205 #include <netdb.h>
2206 int main(void) {
2207     struct sockaddr_storage saddr;
2208     struct ipv6_mreq mreq6;
2209     getaddrinfo(0,0,0,0);
2210     getnameinfo(0,0,0,0,0,0,0);
2211     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2212 }
2213 EOF
2214
2215 check_header linux/videodev.h
2216 check_header linux/videodev2.h
2217 check_header sys/videoio.h
2218
2219 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2220
2221 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2222 { check_header dev/bktr/ioctl_meteor.h &&
2223   check_header dev/bktr/ioctl_bt848.h; } ||
2224 { check_header machine/ioctl_meteor.h &&
2225   check_header machine/ioctl_bt848.h; } ||
2226 { check_header dev/video/meteor/ioctl_meteor.h &&
2227   check_header dev/video/bktr/ioctl_bt848.h; } ||
2228 check_header dev/ic/bt8xx.h
2229
2230 check_header sys/soundcard.h
2231 check_header soundcard.h
2232
2233 enabled alsa_demuxer || enabled alsa_muxer && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2234
2235 enabled jack_demuxer && check_lib2 jack/jack.h jack_client_open -ljack
2236
2237 # deal with the X11 frame grabber
2238 enabled x11grab                         &&
2239 check_header X11/Xlib.h                 &&
2240 check_header X11/extensions/XShm.h      &&
2241 check_func XOpenDisplay -lX11           &&
2242 check_func XShmCreateImage -lX11 -lXext
2243
2244 enabled debug && add_cflags -g"$debuglevel"
2245
2246 # add some useful compiler flags if supported
2247 check_cflags -Wdeclaration-after-statement
2248 check_cflags -Wall
2249 check_cflags -Wno-switch
2250 check_cflags -Wdisabled-optimization
2251 check_cflags -Wpointer-arith
2252 check_cflags -Wredundant-decls
2253 check_cflags -Wno-pointer-sign
2254 check_cflags -Wcast-qual
2255 check_cflags -Wwrite-strings
2256 check_cflags -Wtype-limits
2257 check_cflags -Wundef
2258 enabled extra_warnings && check_cflags -Winline
2259
2260 # add some linker flags
2261 check_ldflags -Wl,--warn-common
2262 check_ldflags -Wl,--as-needed
2263 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'
2264 check_ldflags -Wl,-Bsymbolic
2265
2266 if enabled small; then
2267     check_cflags -Os            # not all compilers support -Os
2268     optimizations="small"
2269 elif enabled optimizations; then
2270     if enabled xlc; then
2271         add_cflags  -O5
2272         add_ldflags -O5
2273     elif enabled ccc; then
2274         add_cflags -fast
2275     else
2276         add_cflags -O3
2277     fi
2278 fi
2279 check_cflags -fno-math-errno
2280 check_cflags -fno-signed-zeros
2281
2282 # add some flags for Intel C Compiler
2283 if enabled icc; then
2284     # Just warnings, no remarks
2285     check_cflags -w1
2286     # -wd: Disable following warnings
2287     # 144, 167, 556: -Wno-pointer-sign
2288     # 10006: ignoring unknown option -fno-signed-zeros
2289     # 10156: ignoring option '-W'; no argument required
2290     check_cflags -wd144,167,556,10006,10156
2291     # 11030: Warning unknown option --as-needed
2292     # 10156: ignoring option '-export'; no argument required
2293     check_ldflags -wd10156,11030
2294     # Allow to compile with optimizations
2295     check_ldflags -march=$cpu
2296     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2297     enable ebp_available
2298 elif enabled ccc; then
2299     # disable some annoying warnings
2300     add_cflags -msg_disable cvtu32to64
2301     add_cflags -msg_disable embedcomment
2302     add_cflags -msg_disable needconstext
2303     add_cflags -msg_disable nomainieee
2304     add_cflags -msg_disable ptrmismatch1
2305     add_cflags -msg_disable unreachcode
2306 fi
2307
2308 # PIC flags for shared library objects where they are needed
2309 if enabled shared; then
2310     # LIBOBJFLAGS may have already been set in the OS configuration
2311     if test -z "$LIBOBJFLAGS" ; then
2312         case "${subarch-$arch}" in
2313             x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2314         esac
2315     fi
2316 fi
2317
2318 if enabled gprof; then
2319     add_cflags  -p
2320     add_ldflags -p
2321 fi
2322
2323 # Find out if the .align argument is a power of two or not.
2324 check_asm asmalign_pot '".align 3"'
2325
2326 enabled_any $DECODER_LIST      && enable decoders
2327 enabled_any $ENCODER_LIST      && enable encoders
2328 enabled_any $HWACCEL_LIST      && enable hwaccels
2329 enabled_any $BSF_LIST          && enable bsfs
2330 enabled_any $DEMUXER_LIST      && enable demuxers
2331 enabled_any $MUXER_LIST        && enable muxers
2332 enabled_any $FILTER_LIST       && enable filters
2333 enabled_any $INDEV_LIST        && enable demuxers
2334 enabled_any $OUTDEV_LIST       && enable muxers
2335 enabled_any $PROTOCOL_LIST     && enable protocols
2336
2337 enabled_any $THREADS_LIST      && enable threads
2338
2339 check_deps $CONFIG_LIST       \
2340            $CONFIG_EXTRA      \
2341            $HAVE_LIST         \
2342            $DECODER_LIST      \
2343            $ENCODER_LIST      \
2344            $HWACCEL_LIST      \
2345            $PARSER_LIST       \
2346            $BSF_LIST          \
2347            $DEMUXER_LIST      \
2348            $MUXER_LIST        \
2349            $FILTER_LIST       \
2350            $INDEV_LIST        \
2351            $OUTDEV_LIST       \
2352            $PROTOCOL_LIST     \
2353
2354 echo "install prefix            $prefix"
2355 echo "source path               $source_path"
2356 echo "C compiler                $cc"
2357 echo ".align is power-of-two    $asmalign_pot"
2358 echo "ARCH                      $arch ($cpu)"
2359 if test "$build_suffix" != ""; then
2360     echo "build suffix              $build_suffix"
2361 fi
2362 if test "$extra_version" != ""; then
2363     echo "version string suffix     $extra_version"
2364 fi
2365 echo "big-endian                ${bigendian-no}"
2366 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2367 if enabled x86; then
2368     echo "yasm                      ${yasm-no}"
2369     echo "MMX enabled               ${mmx-no}"
2370     echo "MMX2 enabled              ${mmx2-no}"
2371     echo "3DNow! enabled            ${amd3dnow-no}"
2372     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2373     echo "SSE enabled               ${sse-no}"
2374     echo "SSSE3 enabled             ${ssse3-no}"
2375     echo "CMOV enabled              ${cmov-no}"
2376     echo "CMOV is fast              ${fast_cmov-no}"
2377     echo "EBX available             ${ebx_available-no}"
2378     echo "EBP available             ${ebp_available-no}"
2379     echo "10 operands supported     ${ten_operands-no}"
2380 fi
2381 if enabled arm; then
2382     echo "ARMv5TE enabled           ${armv5te-no}"
2383     echo "ARMv6 enabled             ${armv6-no}"
2384     echo "ARMv6T2 enabled           ${armv6t2-no}"
2385     echo "ARM VFP enabled           ${armvfp-no}"
2386     echo "IWMMXT enabled            ${iwmmxt-no}"
2387     echo "NEON enabled              ${neon-no}"
2388 fi
2389 if enabled mips; then
2390     echo "MMI enabled               ${mmi-no}"
2391 fi
2392 if enabled ppc; then
2393     echo "AltiVec enabled           ${altivec-no}"
2394     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2395     echo "dcbzl available           ${dcbzl-no}"
2396     echo "performance report        ${powerpc_perf-no}"
2397 fi
2398 if enabled sparc; then
2399     echo "VIS enabled               ${vis-no}"
2400 fi
2401 echo "gprof enabled             ${gprof-no}"
2402 echo "debug symbols             ${debug-no}"
2403 echo "strip symbols             ${stripping-no}"
2404 echo "optimizations             ${optimizations-no}"
2405 echo "static                    ${static-no}"
2406 echo "shared                    ${shared-no}"
2407 echo "postprocessing support    ${postproc-no}"
2408 echo "new filter support        ${avfilter-no}"
2409 echo "filters using lavformat   ${avfilter_lavf-no}"
2410 echo "network support           ${network-no}"
2411 if enabled network; then
2412     echo "IPv6 support              ${ipv6-no}"
2413 fi
2414 echo "threading support         ${thread_type-no}"
2415 echo "SDL support               ${sdl-no}"
2416 if enabled sdl_too_old; then
2417     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2418 fi
2419 echo "Sun medialib support      ${mlib-no}"
2420 echo "AVISynth enabled          ${avisynth-no}"
2421 echo "libdc1394 support         ${libdc1394-no}"
2422 echo "libdirac enabled          ${libdirac-no}"
2423 echo "libfaac enabled           ${libfaac-no}"
2424 echo "libfaad enabled           ${libfaad-no}"
2425 echo "libfaad dlopened          ${libfaadbin-no}"
2426 echo "libgsm enabled            ${libgsm-no}"
2427 echo "libmp3lame enabled        ${libmp3lame-no}"
2428 echo "libnut enabled            ${libnut-no}"
2429 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2430 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2431 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2432 echo "libschroedinger enabled   ${libschroedinger-no}"
2433 echo "libspeex enabled          ${libspeex-no}"
2434 echo "libtheora enabled         ${libtheora-no}"
2435 echo "libvorbis enabled         ${libvorbis-no}"
2436 echo "libx264 enabled           ${libx264-no}"
2437 echo "libxvid enabled           ${libxvid-no}"
2438 echo "zlib enabled              ${zlib-no}"
2439 echo "bzlib enabled             ${bzlib-no}"
2440 echo
2441
2442 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2443     echo "Enabled ${type}s:"
2444     eval list=\$$(toupper $type)_LIST
2445     for part in $list; do
2446         enabled $part && echo ${part%_*}
2447     done | sort | pr -3 -t
2448     echo
2449 done
2450
2451 license="LGPL version 2.1 or later"
2452 if enabled nonfree; then
2453     license="nonfree and unredistributable"
2454 elif enabled gplv3; then
2455     license="GPL version 3 or later"
2456 elif enabled lgplv3; then
2457     license="LGPL version 3 or later"
2458 elif enabled gpl; then
2459     license="GPL version 2 or later"
2460 fi
2461
2462 echo "License: $license"
2463
2464 echo "Creating config.mak and config.h..."
2465
2466 echo "# Automatically generated by configure - do not modify!" > config.mak
2467 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2468 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2469 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2470 echo "#define FFMPEG_CONFIGURATION \"$(c_escape $FFMPEG_CONFIGURATION)\"" >> $TMPH
2471 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2472
2473 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2474 echo "prefix=$prefix" >> config.mak
2475 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2476 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2477 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2478 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2479 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2480 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2481 echo "SRC_PATH=\"$source_path\"" >> config.mak
2482 echo "SRC_PATH_BARE=$source_path" >> config.mak
2483 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2484 echo "CC=$cc" >> config.mak
2485 echo "AS=$as" >> config.mak
2486 echo "LD=$ld" >> config.mak
2487 echo "DEPCC=$dep_cc" >> config.mak
2488 echo "YASM=$yasmexe" >> config.mak
2489 echo "AR=$ar" >> config.mak
2490 echo "RANLIB=$ranlib" >> config.mak
2491 echo "LN_S=$ln_s" >> config.mak
2492 enabled stripping &&
2493     echo "STRIP=$strip" >> config.mak ||
2494     echo "STRIP=echo ignoring strip" >> config.mak
2495
2496 echo "CPPFLAGS?=$CPPFLAGS" >> config.mak
2497 echo "CFLAGS=$CFLAGS" >> config.mak
2498 echo "CC_O=$CC_O" >> config.mak
2499 echo "LDFLAGS=$LDFLAGS" >> config.mak
2500 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2501 echo "SHFLAGS=$SHFLAGS" >> config.mak
2502 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2503 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2504 echo "BUILD_STATIC=$static" >> config.mak
2505 echo "BUILDSUF=$build_suffix" >> config.mak
2506 echo "FULLNAME=$FULLNAME" >> config.mak
2507 echo "LIBPREF=$LIBPREF" >> config.mak
2508 echo "LIBSUF=$LIBSUF" >> config.mak
2509 echo "LIBNAME=$LIBNAME" >> config.mak
2510 echo "SLIBPREF=$SLIBPREF" >> config.mak
2511 echo "SLIBSUF=$SLIBSUF" >> config.mak
2512 echo "EXESUF=$EXESUF" >> config.mak
2513 echo "EXTRA_VERSION=$extra_version" >> config.mak
2514 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2515 echo "HOSTCC=$host_cc" >> config.mak
2516 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2517 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2518 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2519 echo "HOSTLIBS=$host_libs" >> config.mak
2520 echo "TARGET_EXEC=$target_exec" >> config.mak
2521 echo "TARGET_PATH=$target_path" >> config.mak
2522
2523 if enabled bigendian; then
2524     echo "WORDS_BIGENDIAN=yes" >> config.mak
2525     echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2526 fi
2527
2528 if enabled sdl; then
2529     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2530     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2531 fi
2532 if enabled texi2html; then
2533     echo "BUILD_DOC=yes" >> config.mak
2534 fi
2535
2536 get_version(){
2537     name=$1
2538     file=$source_path/$2
2539     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2540     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2541     lcname=$(tolower $name)
2542     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2543     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2544 }
2545
2546 get_version LIBSWSCALE  libswscale/swscale.h
2547 get_version LIBPOSTPROC libpostproc/postprocess.h
2548 get_version LIBAVCODEC  libavcodec/avcodec.h
2549 get_version LIBAVDEVICE libavdevice/avdevice.h
2550 get_version LIBAVFORMAT libavformat/avformat.h
2551 get_version LIBAVUTIL   libavutil/avutil.h
2552 get_version LIBAVFILTER libavfilter/avfilter.h
2553
2554 if enabled shared; then
2555     echo "BUILD_SHARED=yes" >> config.mak
2556     echo "PIC=-fPIC -DPIC" >> config.mak
2557     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2558     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2559     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2560     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2561     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2562     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2563     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2564     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2565 fi
2566 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2567 echo "EXTRALIBS=$extralibs" >> config.mak
2568
2569 echo "ARCH=$arch" >> config.mak
2570
2571 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2572 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2573 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2574                                       $CONFIG_EXTRA      \
2575                                       $DECODER_LIST      \
2576                                       $ENCODER_LIST      \
2577                                       $HWACCEL_LIST      \
2578                                       $PARSER_LIST       \
2579                                       $BSF_LIST          \
2580                                       $DEMUXER_LIST      \
2581                                       $MUXER_LIST        \
2582                                       $FILTER_LIST       \
2583                                       $PROTOCOL_LIST     \
2584                                       $INDEV_LIST        \
2585                                       $OUTDEV_LIST       \
2586
2587 echo "#define restrict $_restrict" >> $TMPH
2588
2589 if enabled small; then
2590     echo "#define av_always_inline"  >> $TMPH
2591 fi
2592
2593
2594 # Apparently it's not possible to portably echo a backslash.
2595 enabled asmalign_pot &&
2596     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2597     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2598
2599 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2600
2601 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2602
2603 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2604 cmp -s $TMPH config.h &&
2605     echo "config.h is unchanged" ||
2606     mv -f $TMPH config.h
2607
2608 # build tree in object directory if source path is different from current one
2609 if enabled source_path_used; then
2610     DIRS="\
2611         doc               \
2612         libavcodec        \
2613         libavcodec/alpha  \
2614         libavcodec/arm    \
2615         libavcodec/bfin   \
2616         libavcodec/mlib   \
2617         libavcodec/ppc    \
2618         libavcodec/sh4    \
2619         libavcodec/sparc  \
2620         libavcodec/x86    \
2621         libavdevice       \
2622         libavfilter       \
2623         libavformat       \
2624         libavutil         \
2625         libpostproc       \
2626         libswscale        \
2627         libswscale/bfin   \
2628         libswscale/mlib   \
2629         libswscale/ppc    \
2630         libswscale/sparc  \
2631         libswscale/x86    \
2632         tests             \
2633         tools             \
2634         "
2635     FILES="\
2636         Makefile             \
2637         common.mak           \
2638         subdir.mak           \
2639         doc/texi2pod.pl      \
2640         libavcodec/Makefile  \
2641         libavdevice/Makefile \
2642         libavfilter/Makefile \
2643         libavformat/Makefile \
2644         libavutil/Makefile   \
2645         libpostproc/Makefile \
2646         libswscale/Makefile  \
2647         "
2648     for dir in $DIRS ; do
2649         mkdir -p $dir
2650     done
2651     for f in $FILES ; do
2652         $ln_s "$source_path/$f" $f
2653     done
2654 fi
2655
2656
2657 # build pkg-config files
2658
2659 pkgconfig_generate(){
2660 name=$1
2661 shortname=${name#lib}${build_suffix}
2662 comment=$2
2663 version=$3
2664 libs=$4
2665 requires=$5
2666 cat <<EOF > $name/$name.pc
2667 prefix=$prefix
2668 exec_prefix=\${prefix}
2669 libdir=$libdir
2670 includedir=$incdir
2671
2672 Name: $name
2673 Description: $comment
2674 Version: $version
2675 Requires: $(disabled shared && echo $requires)
2676 Requires.private: $(enabled shared && echo $requires)
2677 Conflicts:
2678 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2679 Libs.private: $(enabled shared && echo $libs)
2680 Cflags: -I\${includedir}
2681 EOF
2682 cat <<EOF > $name/$name-uninstalled.pc
2683 prefix=
2684 exec_prefix=
2685 libdir=\${pcfiledir}
2686 includedir=${source_path}
2687
2688 Name: $name
2689 Description: $comment
2690 Version: $version
2691 Requires: $requires
2692 Conflicts:
2693 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2694 Cflags: -I\${includedir}
2695 EOF
2696 }
2697
2698 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2699 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2700 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2701 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2702 enabled avfilter &&
2703     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2704 enabled postproc &&
2705     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2706 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"