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 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.err]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffserver       disable ffserver build
  86   --enable-postproc        enable GPLed postprocessing support [no]
  87   --enable-avfilter        video filter support [no]
  88   --enable-avfilter-lavf   video filters dependent on avformat [no]
  89   --enable-beosthreads     use BeOS threads [no]
  90   --enable-os2threads      use OS/2 threads [no]
  91   --enable-pthreads        use pthreads [no]
  92   --enable-w32threads      use Win32 threads [no]
  93   --enable-x11grab         enable X11 grabbing [no]
  94   --disable-network        disable network support [no]
  95   --disable-ipv6           disable IPv6 support [no]
  96   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-fft            disable FFT code
 103   --disable-golomb         disable Golomb code
 104   --disable-lpc            disable LPC code
 105   --disable-mdct           disable MDCT code
 106   --disable-rdft           disable RDFT code
 107   --disable-vaapi          disable VAAPI code
 108   --disable-vdpau          disable VDPAU code
 109   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 110   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 111   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 112   --enable-beos-netserver  enable BeOS netserver
 113   --disable-encoder=NAME   disable encoder NAME
 114   --enable-encoder=NAME    enable encoder NAME
 115   --disable-encoders       disable all encoders
 116   --disable-decoder=NAME   disable decoder NAME
 117   --enable-decoder=NAME    enable decoder NAME
 118   --disable-decoders       disable all decoders
 119   --disable-hwaccel=NAME   disable hwaccel NAME
 120   --enable-hwaccel=NAME    enable hwaccel NAME
 121   --disable-hwaccels       disable all hwaccels
 122   --disable-muxer=NAME     disable muxer NAME
 123   --enable-muxer=NAME      enable muxer NAME
 124   --disable-muxers         disable all muxers
 125   --disable-demuxer=NAME   disable demuxer NAME
 126   --enable-demuxer=NAME    enable demuxer NAME
 127   --disable-demuxers       disable all demuxers
 128   --enable-parser=NAME     enable parser NAME
 129   --disable-parser=NAME    disable parser NAME
 130   --disable-parsers        disable all parsers
 131   --enable-bsf=NAME        enable bitstream filter NAME
 132   --disable-bsf=NAME       disable bitstream filter NAME
 133   --disable-bsfs           disable all bitstream filters
 134   --enable-protocol=NAME   enable protocol NAME
 135   --disable-protocol=NAME  disable protocol NAME
 136   --disable-protocols      disable all protocols
 137   --disable-indev=NAME     disable input device NAME
 138   --disable-outdev=NAME    disable output device NAME
 139   --disable-indevs         disable input devices
 140   --disable-outdevs        disable output devices
 141   --disable-devices        disable all devices
 142   --enable-filter=NAME     enable filter NAME
 143   --disable-filter=NAME    disable filter NAME
 144   --disable-filters        disable all filters
 145   --list-decoders          show all available decoders
 146   --list-encoders          show all available encoders
 147   --list-hwaccels          show all available hardware accelerators
 148   --list-muxers            show all available muxers
 149   --list-demuxers          show all available demuxers
 150   --list-parsers           show all available parsers
 151   --list-protocols         show all available protocols
 152   --list-bsfs              show all available bitstream filters
 153   --list-indevs            show all available input devices
 154   --list-outdevs           show all available output devices
 155   --list-filters           show all available filters
 156
 157 External library support:
 158   --enable-avisynth        enable reading of AVISynth script files [no]
 159   --enable-bzlib           enable bzlib [autodetect]
 160   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 161   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 162   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 163                            and libraw1394 [no]
 164   --enable-libdirac        enable Dirac support via libdirac [no]
 165   --enable-libfaac         enable FAAC support via libfaac [no]
 166   --enable-libfaad         enable FAAD support via libfaad [no]
 167   --enable-libfaadbin      open libfaad.so.0 at runtime [no]
 168   --enable-libgsm          enable GSM support via libgsm [no]
 169   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 170   --enable-libnut          enable NUT (de)muxing via libnut,
 171                            native (de)muxer exists [no]
 172   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 173   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 174   --enable-libspeex        enable Speex decoding via libspeex [no]
 175   --enable-libtheora       enable Theora encoding via libtheora [no]
 176   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 177                            native implementation exists [no]
 178   --enable-libx264         enable H.264 encoding via x264 [no]
 179   --enable-libxvid         enable Xvid encoding via xvidcore,
 180                            native MPEG-4/Xvid encoder exists [no]
 181   --enable-mlib            enable Sun medialib [no]
 182   --enable-zlib            enable zlib [autodetect]
 183
 184 Advanced options (experts only):
 185   --source-path=PATH       path to source code [$source_path]
 186   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 187   --enable-cross-compile   assume a cross-compiler is used
 188   --sysroot=PATH           root of cross-build tree
 189   --sysinclude=PATH        location of cross-build system headers
 190   --target-os=OS           compiler targets OS [$target_os]
 191   --target-exec=CMD        command to run executables on target
 192   --target-path=DIR        path to view of build directory on target
 193   --nm=NM                  use nm tool
 194   --as=AS                  use assembler AS [$as_default]
 195   --cc=CC                  use C compiler CC [$cc_default]
 196   --ld=LD                  use linker LD
 197   --host-cc=HOSTCC         use host C compiler HOSTCC
 198   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 199   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 200   --host-libs=HLIBS        use libs HLIBS when linking for host
 201   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 202   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 203   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 204   --extra-version=STRING   version string suffix []
 205   --build-suffix=SUFFIX    library name suffix []
 206   --arch=ARCH              select architecture [$arch]
 207   --cpu=CPU                select the minimum required CPU (affects
 208                            instruction selection, may crash on older CPUs)
 209   --enable-powerpc-perf    enable performance report on PPC
 210                            (requires enabling PMC)
 211   --disable-altivec        disable AltiVec optimizations
 212   --disable-amd3dnow       disable 3DNow! optimizations
 213   --disable-amd3dnowext    disable 3DNow! extended optimizations
 214   --disable-mmx            disable MMX optimizations
 215   --disable-mmx2           disable MMX2 optimizations
 216   --disable-sse            disable SSE optimizations
 217   --disable-ssse3          disable SSSE3 optimizations
 218   --disable-armv5te        disable armv5te optimizations
 219   --disable-armv6          disable armv6 optimizations
 220   --disable-armv6t2        disable armv6t2 optimizations
 221   --disable-armvfp         disable ARM VFP optimizations
 222   --disable-iwmmxt         disable iwmmxt optimizations
 223   --disable-mmi            disable MMI optimizations
 224   --disable-neon           disable neon optimizations
 225   --disable-vis            disable VIS optimizations
 226   --disable-yasm           disable use of yasm assembler
 227   --enable-pic             build position-independent code
 228
 229 Developer options (useful when working on FFmpeg itself):
 230   --disable-debug          disable debugging symbols
 231   --enable-debug=LEVEL     set the debug level [$debuglevel]
 232   --enable-gprof           enable profiling with gprof [$gprof]
 233   --disable-optimizations  disable compiler optimizations
 234   --enable-extra-warnings  enable more compiler warnings
 235   --disable-stripping      disable stripping of executables and shared libraries
 236
 237 NOTE: Object files are built at the place where configure is launched.
 238 EOF
 239   exit 0
 240 }
 241
 242 log(){
 243     echo "$@" >> $logfile
 244 }
 245
 246 log_file(){
 247     log BEGIN $1
 248     pr -n -t $1 >> $logfile
 249     log END $1
 250 }
 251
 252 echolog(){
 253     log "$@"
 254     echo "$@"
 255 }
 256
 257 die(){
 258     echolog "$@"
 259     cat <<EOF
 260
 261 If you think configure made a mistake, make sure you are using the latest
 262 version from SVN.  If the latest version fails, report the problem to the
 263 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 264 EOF
 265     if disabled logging; then
 266         cat <<EOF
 267 Rerun configure with logging enabled (do not use --disable-logging), and
 268 include the log this produces with your report.
 269 EOF
 270     else
 271 cat <<EOF
 272 Include the log file "$logfile" produced by configure as this will help
 273 solving the problem.
 274 EOF
 275     fi
 276     exit 1
 277 }
 278
 279 # Avoid locale weirdness, besides we really just want to translate ASCII.
 280 toupper(){
 281     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 282 }
 283
 284 tolower(){
 285     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 286 }
 287
 288 c_escape(){
 289     echo "$*" | sed 's/["\\]/\\\0/g'
 290 }
 291
 292 sh_quote(){
 293     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 294     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
 295     echo "$v"
 296 }
 297
 298 filter(){
 299     pat=$1
 300     shift
 301     for v; do
 302         eval "case $v in $pat) echo $v ;; esac"
 303     done
 304 }
 305
 306 set_all(){
 307     value=$1
 308     shift
 309     for var in $*; do
 310         eval $var=$value
 311     done
 312 }
 313
 314 set_weak(){
 315     value=$1
 316     shift
 317     for var; do
 318         eval : \${$var:=$value}
 319     done
 320 }
 321
 322 pushvar(){
 323     for var in $*; do
 324         eval level=\${${var}_level:=0}
 325         eval ${var}_${level}="\$$var"
 326         eval ${var}_level=$(($level+1))
 327     done
 328 }
 329
 330 popvar(){
 331     for var in $*; do
 332         eval level=\${${var}_level:-0}
 333         test $level = 0 && continue
 334         eval level=$(($level-1))
 335         eval $var="\${${var}_${level}}"
 336         eval ${var}_level=$level
 337         eval unset ${var}_${level}
 338     done
 339 }
 340
 341 enable(){
 342     set_all yes $*
 343 }
 344
 345 disable(){
 346     set_all no $*
 347 }
 348
 349 enable_weak(){
 350     set_weak yes $*
 351 }
 352
 353 disable_weak(){
 354     set_weak no $*
 355 }
 356
 357 enable_safe(){
 358     enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 359 }
 360
 361 disable_safe(){
 362     disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 363 }
 364
 365 do_enable_deep(){
 366     for var; do
 367         enabled $var && continue
 368         eval sel="\$${var}_select"
 369         eval sgs="\$${var}_suggest"
 370         pushvar var sgs
 371         enable_deep $sel
 372         popvar sgs
 373         enable_deep_weak $sgs
 374         popvar var
 375     done
 376 }
 377
 378 enable_deep(){
 379     do_enable_deep $*
 380     enable $*
 381 }
 382
 383 enable_deep_weak(){
 384     do_enable_deep $*
 385     enable_weak $*
 386 }
 387
 388 enabled(){
 389     test "${1#!}" = "$1" && op== || op=!=
 390     eval test "x\$${1#!}" $op "xyes"
 391 }
 392
 393 disabled(){
 394     test "${1#!}" = "$1" && op== || op=!=
 395     eval test "x\$${1#!}" $op "xno"
 396 }
 397
 398 enabled_all(){
 399     for opt; do
 400         enabled $opt || return 1
 401     done
 402 }
 403
 404 disabled_all(){
 405     for opt; do
 406         disabled $opt || return 1
 407     done
 408 }
 409
 410 enabled_any(){
 411     for opt; do
 412         enabled $opt && return 0
 413     done
 414 }
 415
 416 disabled_any(){
 417     for opt; do
 418         disabled $opt && return 0
 419     done
 420     return 1
 421 }
 422
 423 set_default(){
 424     for opt; do
 425         eval : \${$opt:=\$${opt}_default}
 426     done
 427 }
 428
 429 is_in(){
 430     value=$1
 431     shift
 432     for var in $*; do
 433         [ $var = $value ] && return 0
 434     done
 435     return 1
 436 }
 437
 438 check_deps(){
 439     for cfg; do
 440         cfg="${cfg#!}"
 441         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 442         disabled ${cfg}_checking && continue
 443         enable ${cfg}_checking
 444
 445         eval dep_all="\$${cfg}_deps"
 446         eval dep_any="\$${cfg}_deps_any"
 447         eval dep_sel="\$${cfg}_select"
 448         eval dep_sgs="\$${cfg}_suggest"
 449
 450         pushvar cfg dep_all dep_any dep_sel dep_sgs
 451         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 452         popvar cfg dep_all dep_any dep_sel dep_sgs
 453
 454         enabled_all  $dep_all || disable $cfg
 455         enabled_any  $dep_any || disable $cfg
 456         disabled_any $dep_sel && disable $cfg
 457
 458         if enabled $cfg; then
 459             eval dep_extralibs="\$${cfg}_extralibs"
 460             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 461             enable_deep $dep_sel
 462             enable_deep_weak $dep_sgs
 463         fi
 464
 465         disable ${cfg}_checking
 466     done
 467 }
 468
 469 print_config(){
 470     pfx=$1
 471     header=$2
 472     makefile=$3
 473     shift 3
 474     for cfg; do
 475         ucname="$(toupper $cfg)"
 476         if enabled $cfg; then
 477             echo "#define ${pfx}${ucname} 1" >> $header
 478             echo "${pfx}${ucname}=yes" >> $makefile
 479         else
 480             echo "#define ${pfx}${ucname} 0" >> $header
 481         fi
 482     done
 483 }
 484
 485 flags_saved(){
 486     (: ${SAVE_CFLAGS?}) 2> /dev/null
 487 }
 488
 489 save_flags(){
 490     flags_saved && return
 491     SAVE_CFLAGS="$CFLAGS"
 492     SAVE_LDFLAGS="$LDFLAGS"
 493     SAVE_extralibs="$extralibs"
 494 }
 495
 496 restore_flags(){
 497     flags_saved || return
 498     CFLAGS="$SAVE_CFLAGS"
 499     LDFLAGS="$SAVE_LDFLAGS"
 500     extralibs="$SAVE_extralibs"
 501     unset SAVE_CFLAGS
 502     unset SAVE_LDFLAGS
 503     unset SAVE_extralibs
 504 }
 505
 506 temp_cflags(){
 507     save_flags
 508     CFLAGS="$CFLAGS $*"
 509 }
 510
 511 temp_ldflags(){
 512     save_flags
 513     LDFLAGS="$LDFLAGS $*"
 514 }
 515
 516 temp_extralibs(){
 517     save_flags
 518     extralibs="$extralibs $*"
 519 }
 520
 521 append(){
 522     var=$1
 523     shift
 524     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 525     eval "$var=\"\$$var $*\""
 526 }
 527
 528 add_cppflags(){
 529     append CPPFLAGS $($filter_cppflags "$@")
 530 }
 531
 532 add_cflags(){
 533     append CFLAGS $($filter_cflags "$@")
 534 }
 535
 536 add_asflags(){
 537     append ASFLAGS $($filter_asflags "$@")
 538 }
 539
 540 add_ldflags(){
 541     append LDFLAGS "$@"
 542 }
 543
 544 add_extralibs(){
 545     append extralibs "$@"
 546 }
 547
 548 check_cmd(){
 549     log "$@"
 550     "$@" >> $logfile 2>&1
 551 }
 552
 553 check_cc(){
 554     log check_cc "$@"
 555     cat > $TMPC
 556     log_file $TMPC
 557     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 558 }
 559
 560 check_cpp(){
 561     log check_cpp "$@"
 562     cat > $TMPC
 563     log_file $TMPC
 564     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 565 }
 566
 567 check_as(){
 568     log check_as "$@"
 569     cat > $TMPC
 570     log_file $TMPC
 571     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 572 }
 573
 574 check_asm(){
 575     log check_asm "$@"
 576     name="$1"
 577     asm="$2"
 578     shift 2
 579     disable $name
 580     check_as "$@" <<EOF && enable $name
 581 void foo(void){ __asm__ volatile($asm); }
 582 EOF
 583 }
 584
 585 check_yasm(){
 586     log check_yasm "$@"
 587     echo "$1" > $TMPS
 588     log_file $TMPS
 589     shift 1
 590     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 591 }
 592
 593 check_ld(){
 594     log check_ld "$@"
 595     check_cc || return
 596     flags=''
 597     libs=''
 598     for f; do
 599         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 600     done
 601     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 602 }
 603
 604 check_cppflags(){
 605     log check_cppflags "$@"
 606     set -- $($filter_cppflags "$@")
 607     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 608 int x;
 609 EOF
 610 }
 611
 612 check_cflags(){
 613     log check_cflags "$@"
 614     set -- $($filter_cflags "$@")
 615     check_cc "$@" <<EOF && append CFLAGS "$@"
 616 int x;
 617 EOF
 618 }
 619
 620 check_ldflags(){
 621     log check_ldflags "$@"
 622     check_ld "$@" <<EOF && add_ldflags "$@"
 623 int main(void){ return 0; }
 624 EOF
 625 }
 626
 627 check_header(){
 628     log check_header "$@"
 629     header=$1
 630     shift
 631     disable_safe $header
 632     check_cpp "$@" <<EOF && enable_safe $header
 633 #include <$header>
 634 int x;
 635 EOF
 636 }
 637
 638 check_func(){
 639     log check_func "$@"
 640     func=$1
 641     shift
 642     disable $func
 643     check_ld "$@" <<EOF && enable $func
 644 extern int $func();
 645 int main(void){ $func(); }
 646 EOF
 647 }
 648
 649 check_func_headers(){
 650     log check_func_headers "$@"
 651     headers=$1
 652     func=$2
 653     shift 2
 654     disable $func
 655     incs=""
 656     for hdr in $headers; do
 657         incs="$incs
 658 #include <$hdr>"
 659     done
 660     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 661 $incs
 662 int main(int argc, char **argv){
 663     return (long) $func;
 664 }
 665 EOF
 666 }
 667
 668 check_cpp_condition(){
 669     log check_cpp_condition "$@"
 670     header=$1
 671     condition=$2
 672     check_cpp <<EOF
 673 #include <$header>
 674 #if !($condition)
 675 #error "unsatisfied condition: $condition"
 676 #endif
 677 EOF
 678 }
 679
 680 check_lib(){
 681     log check_lib "$@"
 682     header="$1"
 683     func="$2"
 684     shift 2
 685     temp_extralibs "$@"
 686     check_header $header && check_func $func && add_extralibs "$@"
 687     err=$?
 688     restore_flags
 689     return $err
 690 }
 691
 692 check_lib2(){
 693     log check_lib2 "$@"
 694     headers="$1"
 695     func="$2"
 696     shift 2
 697     temp_extralibs "$@"
 698     check_func_headers "$headers" $func && add_extralibs "$@"
 699     err=$?
 700     restore_flags
 701     return $err
 702 }
 703
 704 check_exec(){
 705     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 706 }
 707
 708 check_exec_crash(){
 709     code=$(cat)
 710
 711     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 712     # are safe but may not be available everywhere.  Thus we use
 713     # raise(SIGTERM) instead.  The check is run in a subshell so we
 714     # can redirect the "Terminated" message from the shell.  SIGBUS
 715     # is not defined by standard C so it is used conditionally.
 716
 717     (check_exec "$@") >> $logfile 2>&1 <<EOF
 718 #include <signal.h>
 719 static void sighandler(int sig){
 720     raise(SIGTERM);
 721 }
 722 int main(void){
 723     signal(SIGILL, sighandler);
 724     signal(SIGFPE, sighandler);
 725     signal(SIGSEGV, sighandler);
 726 #ifdef SIGBUS
 727     signal(SIGBUS, sighandler);
 728 #endif
 729     { $code }
 730 }
 731 EOF
 732 }
 733
 734 check_type(){
 735     log check_type "$@"
 736     headers=$1
 737     type=$2
 738     shift 2
 739     disable $type
 740     incs=""
 741     for hdr in $headers; do
 742         incs="$incs
 743 #include <$hdr>"
 744     done
 745     check_cc "$@" <<EOF && enable $type
 746 $incs
 747 $type v;
 748 EOF
 749 }
 750
 751 require(){
 752     name="$1"
 753     header="$2"
 754     func="$3"
 755     shift 3
 756     check_lib $header $func "$@" || die "ERROR: $name not found"
 757 }
 758
 759 require2(){
 760     name="$1"
 761     headers="$2"
 762     func="$3"
 763     shift 3
 764     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 765 }
 766
 767 check_foo_config(){
 768     cfg=$1
 769     pkg=$2
 770     header=$3
 771     func=$4
 772     shift 4
 773     disable $cfg
 774     check_cmd ${pkg}-config --version
 775     err=$?
 776     if test "$err" = 0; then
 777         temp_cflags $(${pkg}-config --cflags)
 778         temp_extralibs $(${pkg}-config --libs)
 779         check_lib "$@" $header $func && enable $cfg
 780     fi
 781     return $err
 782 }
 783
 784 check_host_cc(){
 785     log check_host_cc "$@"
 786     cat > $TMPC
 787     log_file $TMPC
 788     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 789 }
 790
 791 check_host_cflags(){
 792     log check_host_cflags "$@"
 793     check_host_cc "$@" <<EOF && append host_cflags "$@"
 794 int x;
 795 EOF
 796 }
 797
 798 apply(){
 799     file=$1
 800     shift
 801     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 802 }
 803
 804 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 805 # system-dependent things.
 806
 807 COMPONENT_LIST="
 808     bsfs
 809     decoders
 810     demuxers
 811     encoders
 812     filters
 813     hwaccels
 814     indevs
 815     muxers
 816     outdevs
 817     parsers
 818     protocols
 819 "
 820
 821 CONFIG_LIST="
 822     $COMPONENT_LIST
 823     aandct
 824     avfilter
 825     avfilter_lavf
 826     avisynth
 827     beos_netserver
 828     bzlib
 829     doc
 830     fastdiv
 831     ffmpeg
 832     ffplay
 833     ffserver
 834     fft
 835     golomb
 836     gpl
 837     gprof
 838     gray
 839     hardcoded_tables
 840     ipv6
 841     libdc1394
 842     libdirac
 843     libfaac
 844     libfaad
 845     libfaadbin
 846     libgsm
 847     libmp3lame
 848     libnut
 849     libopencore_amrnb
 850     libopencore_amrwb
 851     libopenjpeg
 852     libschroedinger
 853     libspeex
 854     libtheora
 855     libvorbis
 856     libx264
 857     libxvid
 858     lpc
 859     mdct
 860     memalign_hack
 861     mlib
 862     mpegaudio_hp
 863     network
 864     nonfree
 865     pic
 866     postproc
 867     powerpc_perf
 868     rdft
 869     runtime_cpudetect
 870     shared
 871     small
 872     static
 873     swscale_alpha
 874     vaapi
 875     vdpau
 876     version3
 877     x11grab
 878     zlib
 879 "
 880
 881 THREADS_LIST='
 882     beosthreads
 883     os2threads
 884     pthreads
 885     w32threads
 886 '
 887
 888 ARCH_LIST='
 889     alpha
 890     arm
 891     avr32
 892     avr32_ap
 893     avr32_uc
 894     bfin
 895     ia64
 896     m68k
 897     mips
 898     mips64
 899     parisc
 900     ppc
 901     ppc64
 902     s390
 903     sh4
 904     sparc
 905     sparc64
 906     x86
 907     x86_32
 908     x86_64
 909 '
 910
 911 ARCH_EXT_LIST='
 912     altivec
 913     amd3dnow
 914     amd3dnowext
 915     armv5te
 916     armv6
 917     armv6t2
 918     armvfp
 919     iwmmxt
 920     mmi
 921     mmx
 922     mmx2
 923     neon
 924     ppc4xx
 925     sse
 926     ssse3
 927     vis
 928 '
 929
 930 HAVE_LIST="
 931     $ARCH_EXT_LIST
 932     $THREADS_LIST
 933     alsa_asoundlib_h
 934     altivec_h
 935     arpa_inet_h
 936     attribute_packed
 937     bigendian
 938     bswap
 939     closesocket
 940     cmov
 941     conio_h
 942     dcbzl
 943     dev_bktr_ioctl_bt848_h
 944     dev_bktr_ioctl_meteor_h
 945     dev_ic_bt8xx_h
 946     dev_video_meteor_ioctl_meteor_h
 947     dev_video_bktr_ioctl_bt848_h
 948     dlfcn_h
 949     dlopen
 950     dos_paths
 951     ebp_available
 952     ebx_available
 953     fast_64bit
 954     fast_cmov
 955     fast_unaligned
 956     fork
 957     gethrtime
 958     GetProcessTimes
 959     getrusage
 960     inet_aton
 961     inline_asm
 962     isatty
 963     ldbrx
 964     libdc1394_1
 965     libdc1394_2
 966     llrint
 967     log2
 968     loongson
 969     lrint
 970     lrintf
 971     lzo1x_999_compress
 972     machine_ioctl_bt848_h
 973     machine_ioctl_meteor_h
 974     malloc_h
 975     memalign
 976     mkstemp
 977     pld
 978     posix_memalign
 979     round
 980     roundf
 981     sdl
 982     sdl_video_size
 983     setmode
 984     socklen_t
 985     soundcard_h
 986     poll_h
 987     sys_mman_h
 988     sys_resource_h
 989     sys_select_h
 990     sys_soundcard_h
 991     sys_videoio_h
 992     ten_operands
 993     termios_h
 994     threads
 995     truncf
 996     vfp_args
 997     VirtualAlloc
 998     winsock2_h
 999     xform_asm
1000     yasm
1001 "
1002
1003 # options emitted with CONFIG_ prefix but not available on command line
1004 CONFIG_EXTRA="
1005     gplv3
1006     lgplv3
1007 "
1008
1009 CMDLINE_SELECT="
1010     $ARCH_EXT_LIST
1011     $CONFIG_LIST
1012     $THREADS_LIST
1013     cross_compile
1014     debug
1015     extra_warnings
1016     logging
1017     optimizations
1018     stripping
1019     yasm
1020 "
1021
1022 PATHS_LIST='
1023     bindir
1024     datadir
1025     incdir
1026     libdir
1027     mandir
1028     prefix
1029     shlibdir
1030 '
1031
1032 CMDLINE_SET="
1033     $PATHS_LIST
1034     arch
1035     as
1036     build_suffix
1037     cc
1038     cpu
1039     cross_prefix
1040     dep_cc
1041     extra_version
1042     host_cc
1043     host_cflags
1044     host_ldflags
1045     host_libs
1046     host_os
1047     ld
1048     logfile
1049     nm
1050     source_path
1051     sysinclude
1052     sysroot
1053     target_exec
1054     target_os
1055     target_path
1056 "
1057
1058 CMDLINE_APPEND="
1059     extra_cflags
1060 "
1061
1062 # code dependency declarations
1063
1064 # architecture extensions
1065 altivec_deps="ppc"
1066 amd3dnow_deps="mmx"
1067 amd3dnowext_deps="amd3dnow"
1068 armv5te_deps="arm"
1069 armv6_deps="arm"
1070 armv6t2_deps="arm"
1071 armvfp_deps="arm"
1072 iwmmxt_deps="arm"
1073 mmi_deps="mips"
1074 mmx_deps="x86"
1075 mmx2_deps="mmx"
1076 neon_deps="arm"
1077 ppc4xx_deps="ppc"
1078 sse_deps="mmx"
1079 ssse3_deps="sse"
1080 vis_deps="sparc"
1081
1082 need_memalign="altivec neon sse"
1083 inline_asm_deps="!tms470"
1084
1085 # decoders / encoders / hardware accelerators
1086 aac_decoder_select="fft mdct"
1087 aac_encoder_select="fft mdct"
1088 ac3_decoder_select="fft mdct"
1089 alac_encoder_select="lpc"
1090 atrac3_decoder_select="fft mdct"
1091 cavs_decoder_select="golomb"
1092 cook_decoder_select="fft mdct"
1093 cscd_decoder_suggest="zlib"
1094 dca_decoder_select="fft mdct"
1095 dnxhd_encoder_select="aandct"
1096 dxa_decoder_select="zlib"
1097 eac3_decoder_select="ac3_decoder"
1098 eamad_decoder_select="aandct"
1099 eatgq_decoder_select="aandct"
1100 eatqi_decoder_select="aandct"
1101 ffv1_decoder_select="golomb"
1102 flac_decoder_select="golomb"
1103 flac_encoder_select="golomb lpc"
1104 flashsv_decoder_select="zlib"
1105 flashsv_encoder_select="zlib"
1106 flv_encoder_select="h263_encoder"
1107 h261_encoder_select="aandct"
1108 h263_encoder_select="aandct"
1109 h263_vaapi_hwaccel_deps="va_va_h"
1110 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1111 h263p_encoder_select="h263_encoder"
1112 h264_decoder_select="golomb"
1113 h264_vaapi_hwaccel_deps="va_va_h"
1114 h264_vaapi_hwaccel_select="vaapi"
1115 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1116 h264_vdpau_decoder_select="vdpau h264_decoder"
1117 imc_decoder_select="fft mdct"
1118 jpegls_decoder_select="golomb"
1119 jpegls_encoder_select="golomb"
1120 ljpeg_encoder_select="aandct"
1121 loco_decoder_select="golomb"
1122 mjpeg_encoder_select="aandct"
1123 mpeg1video_encoder_select="aandct"
1124 mpeg2video_encoder_select="aandct"
1125 mpeg4_encoder_select="h263_encoder"
1126 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1127 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1128 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1129 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1130 mpeg2_vaapi_hwaccel_deps="va_va_h"
1131 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1132 mpeg4_vaapi_hwaccel_deps="va_va_h"
1133 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1134 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1135 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1136 msmpeg4v1_encoder_select="h263_encoder"
1137 msmpeg4v2_encoder_select="h263_encoder"
1138 msmpeg4v3_encoder_select="h263_encoder"
1139 nellymoser_decoder_select="fft mdct"
1140 nellymoser_encoder_select="fft mdct"
1141 png_decoder_select="zlib"
1142 png_encoder_select="zlib"
1143 qdm2_decoder_select="fft mdct rdft"
1144 rv10_encoder_select="h263_encoder"
1145 rv20_encoder_select="h263_encoder"
1146 rv30_decoder_select="golomb"
1147 rv40_decoder_select="golomb"
1148 shorten_decoder_select="golomb"
1149 sonic_decoder_select="golomb"
1150 sonic_encoder_select="golomb"
1151 sonic_ls_encoder_select="golomb"
1152 svq3_decoder_select="golomb"
1153 svq3_decoder_suggest="zlib"
1154 theora_decoder_select="vp3_decoder"
1155 tiff_decoder_suggest="zlib"
1156 tiff_encoder_suggest="zlib"
1157 tscc_decoder_select="zlib"
1158 vc1_vaapi_hwaccel_deps="va_va_h"
1159 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1160 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1161 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1162 vorbis_decoder_select="fft mdct"
1163 vorbis_encoder_select="fft mdct"
1164 vp6a_decoder_select="vp6_decoder"
1165 vp6f_decoder_select="vp6_decoder"
1166 wmav1_decoder_select="fft mdct"
1167 wmav1_encoder_select="fft mdct"
1168 wmav2_decoder_select="fft mdct"
1169 wmav2_encoder_select="fft mdct"
1170 wmv1_encoder_select="h263_encoder"
1171 wmv2_encoder_select="h263_encoder"
1172 wmv3_decoder_select="vc1_decoder"
1173 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1174 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1175 zlib_decoder_select="zlib"
1176 zlib_encoder_select="zlib"
1177 zmbv_decoder_select="zlib"
1178 zmbv_encoder_select="zlib"
1179
1180 # parsers
1181 h264_parser_select="golomb"
1182
1183 # external libraries
1184 libdirac_decoder_deps="libdirac !libschroedinger"
1185 libdirac_encoder_deps="libdirac"
1186 libfaac_encoder_deps="libfaac"
1187 libfaad_decoder_deps="libfaad"
1188 libfaadbin_decoder_extralibs='$ldl'
1189 libgsm_decoder_deps="libgsm"
1190 libgsm_encoder_deps="libgsm"
1191 libgsm_ms_decoder_deps="libgsm"
1192 libgsm_ms_encoder_deps="libgsm"
1193 libmp3lame_encoder_deps="libmp3lame"
1194 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1195 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1196 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1197 libopenjpeg_decoder_deps="libopenjpeg"
1198 libschroedinger_decoder_deps="libschroedinger"
1199 libschroedinger_encoder_deps="libschroedinger"
1200 libspeex_decoder_deps="libspeex"
1201 libtheora_encoder_deps="libtheora"
1202 libvorbis_encoder_deps="libvorbis"
1203 libx264_encoder_deps="libx264"
1204 libxvid_encoder_deps="libxvid"
1205
1206 # demuxers / muxers
1207 ac3_demuxer_deps="ac3_parser"
1208 asf_stream_muxer_select="asf_muxer"
1209 avisynth_demuxer_deps="avisynth"
1210 dirac_demuxer_deps="dirac_parser"
1211 ipod_muxer_select="mov_muxer"
1212 libnut_demuxer_deps="libnut"
1213 libnut_muxer_deps="libnut"
1214 matroska_audio_muxer_select="matroska_muxer"
1215 matroska_demuxer_suggest="zlib bzlib"
1216 mov_demuxer_suggest="zlib"
1217 mp3_demuxer_deps="mpegaudio_parser"
1218 mp4_muxer_select="mov_muxer"
1219 mpegtsraw_demuxer_select="mpegts_demuxer"
1220 mxf_d10_muxer_select="mxf_muxer"
1221 psp_muxer_select="mov_muxer"
1222 rtp_muxer_deps="network rtp_protocol"
1223 rtsp_demuxer_deps="sdp_demuxer"
1224 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1225 tg2_muxer_select="mov_muxer"
1226 tgp_muxer_select="mov_muxer"
1227 w64_demuxer_deps="wav_demuxer"
1228
1229 # indevs / outdevs
1230 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1231 alsa_indev_extralibs="-lasound"
1232 alsa_outdev_deps="alsa_asoundlib_h"
1233 alsa_outdev_extralibs="-lasound"
1234 audio_beos_indev_deps="audio_beos"
1235 audio_beos_indev_extralibs="-lmedia -lbe"
1236 audio_beos_outdev_deps="audio_beos"
1237 audio_beos_outdev_extralibs="-lmedia -lbe"
1238 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1239 dv1394_indev_deps="dv1394 dv_demuxer"
1240 jack_indev_deps="jack_jack_h"
1241 jack_indev_extralibs="-ljack"
1242 libdc1394_indev_deps="libdc1394"
1243 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1244 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1245 v4l_indev_deps="linux_videodev_h"
1246 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1247 vfwcap_indev_deps="capCreateCaptureWindow"
1248 vfwcap_indev_extralibs="-lvfw32"
1249 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1250 x11_grab_device_indev_extralibs="-lX11 -lXext"
1251
1252 # protocols
1253 gopher_protocol_deps="network"
1254 http_protocol_deps="network"
1255 rtmp_protocol_deps="tcp_protocol"
1256 rtp_protocol_deps="udp_protocol"
1257 tcp_protocol_deps="network"
1258 udp_protocol_deps="network"
1259
1260 # filters
1261 movie_filter_deps="avfilter_lavf"
1262
1263 # programs
1264 ffplay_deps="sdl"
1265 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1266 ffserver_extralibs='$ldl'
1267
1268 doc_deps="texi2html"
1269
1270 # default parameters
1271
1272 logfile="config.err"
1273
1274 # installation paths
1275 prefix_default="/usr/local"
1276 bindir_default='${prefix}/bin'
1277 datadir_default='${prefix}/share/ffmpeg'
1278 incdir_default='${prefix}/include'
1279 libdir_default='${prefix}/lib'
1280 mandir_default='${prefix}/share/man'
1281 shlibdir_default="$libdir_default"
1282
1283 # toolchain
1284 ar="ar"
1285 cc_default="gcc"
1286 cc_version=\"unknown\"
1287 host_cc_default="gcc"
1288 ln_s="ln -sf"
1289 nm_default="nm"
1290 objformat="elf"
1291 ranlib="ranlib"
1292 strip="strip"
1293 yasmexe="yasm"
1294
1295 # machine
1296 arch=$(uname -m)
1297 cpu="generic"
1298
1299 # OS
1300 target_os=$(tolower $(uname -s))
1301 host_os=$target_os
1302
1303 # configurable options
1304 enable debug
1305 enable doc
1306 enable fastdiv
1307 enable ffmpeg
1308 enable ffplay
1309 enable ffserver
1310 enable ipv6
1311 enable mpegaudio_hp
1312 enable network
1313 enable optimizations
1314 enable protocols
1315 enable static
1316 enable stripping
1317 enable swscale_alpha
1318
1319 # build settings
1320 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1321 FFSERVERLDFLAGS=-Wl,-E
1322 LIBPREF="lib"
1323 LIBSUF=".a"
1324 FULLNAME='$(NAME)$(BUILDSUF)'
1325 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1326 SLIBPREF="lib"
1327 SLIBSUF=".so"
1328 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1329 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1330 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1331 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1332
1333 CC_O='-o $@'
1334
1335 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1336 host_libs='-lm'
1337
1338 target_path='.'
1339
1340 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1341 # full relative path for objects in subdirectories for non-recursive Make.
1342 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1343 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1344
1345 # find source path
1346 source_path="$(dirname "$0")"
1347 enable source_path_used
1348 if test -f configure; then
1349     source_path="$(pwd)"
1350     disable source_path_used
1351 else
1352     source_path="$(cd "$source_path"; pwd)"
1353     echo "$source_path" | grep -q '[[:blank:]]' &&
1354         die "Out of tree builds are impossible with whitespace in source path."
1355     test -e "$source_path/config.h" &&
1356         die "Out of tree builds are impossible with config.h in source dir."
1357 fi
1358
1359 for v in "$@"; do
1360     r=${v#*=}
1361     l=${v%"$r"}
1362     r=$(sh_quote "$r")
1363     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1364 done
1365
1366 find_things(){
1367     thing=$1
1368     pattern=$2
1369     file=$source_path/$3
1370     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1371 }
1372
1373 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1374 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1375 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1376 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1377 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1378 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1379 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1380 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1381 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1382 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1383 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1384
1385 enable $ARCH_EXT_LIST \
1386        $DECODER_LIST \
1387        $ENCODER_LIST \
1388        $HWACCEL_LIST \
1389        $PARSER_LIST \
1390        $BSF_LIST \
1391        $DEMUXER_LIST \
1392        $MUXER_LIST \
1393        $FILTER_LIST \
1394        $PROTOCOL_LIST \
1395        $INDEV_LIST \
1396        $OUTDEV_LIST \
1397
1398 die_unknown(){
1399     echo "Unknown option \"$1\"."
1400     echo "See $0 --help for available options."
1401     exit 1
1402 }
1403
1404 show_list() {
1405     suffix=_$1
1406     shift
1407     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1408     exit 0
1409 }
1410
1411 for opt do
1412     optval="${opt#*=}"
1413     case "$opt" in
1414     --extra-ldflags=*) add_ldflags $optval
1415     ;;
1416     --extra-libs=*) add_extralibs $optval
1417     ;;
1418     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1419     ;;
1420     --enable-debug=*) debuglevel="$optval"
1421     ;;
1422     --enable-*=*|--disable-*=*)
1423     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1424     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1425     eval list=\$$(toupper $thing)_LIST
1426     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1427     $action $(filter "$name" $list)
1428     ;;
1429     --enable-?*|--disable-?*)
1430     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1431     if is_in $option $COMPONENT_LIST; then
1432         test $action = disable && action=unset
1433         eval $action \$$(toupper ${option%s})_LIST
1434     elif is_in $option $CMDLINE_SELECT; then
1435         $action $option
1436     else
1437         die_unknown $opt
1438     fi
1439     ;;
1440     --list-*)
1441         NAME="${opt#--list-}"
1442         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1443         NAME=${NAME%s}
1444         eval show_list $NAME \$$(toupper $NAME)_LIST
1445     ;;
1446     --help|-h) show_help
1447     ;;
1448     *)
1449     optname="${opt%%=*}"
1450     optname="${optname#--}"
1451     optname=$(echo "$optname" | sed 's/-/_/g')
1452     if is_in $optname $CMDLINE_SET; then
1453         eval $optname='$optval'
1454     elif is_in $optname $CMDLINE_APPEND; then
1455         append $optname "$optval"
1456     else
1457          die_unknown $opt
1458     fi
1459     ;;
1460     esac
1461 done
1462
1463 disabled logging && logfile=/dev/null
1464
1465 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1466 set >> $logfile
1467
1468 test -n "$cross_prefix" && enable cross_compile
1469
1470 ar="${cross_prefix}${ar}"
1471 cc_default="${cross_prefix}${cc_default}"
1472 nm_default="${cross_prefix}${nm_default}"
1473 ranlib="${cross_prefix}${ranlib}"
1474 strip="${cross_prefix}${strip}"
1475
1476 sysinclude_default="${sysroot}/usr/include"
1477
1478 set_default cc nm sysinclude
1479 enabled cross_compile || host_cc_default=$cc
1480 set_default host_cc
1481
1482 exesuf() {
1483     case $1 in
1484         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1485     esac
1486 }
1487
1488 EXESUF=$(exesuf $target_os)
1489 HOSTEXESUF=$(exesuf $host_os)
1490
1491 # set temporary file name
1492 : ${TMPDIR:=$TEMPDIR}
1493 : ${TMPDIR:=$TMP}
1494 : ${TMPDIR:=/tmp}
1495
1496 if ! check_cmd type mktemp; then
1497     # simple replacement for missing mktemp
1498     # NOT SAFE FOR GENERAL USE
1499     mktemp(){
1500         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1501     }
1502 fi
1503
1504 tmpfile(){
1505     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1506         (set -C; exec > $tmp) 2>/dev/null ||
1507         die "Unable to create temporary file in $TMPDIR."
1508     append TMPFILES $tmp
1509     eval $1=$tmp
1510 }
1511
1512 trap 'rm -f -- $TMPFILES' EXIT
1513 trap exit HUP INT TERM
1514
1515 tmpfile TMPC  .c
1516 tmpfile TMPE  $EXESUF
1517 tmpfile TMPH  .h
1518 tmpfile TMPO  .o
1519 tmpfile TMPS  .S
1520 tmpfile TMPSH .sh
1521
1522 unset -f mktemp
1523
1524 # make sure we can execute files in $TMPDIR
1525 cat > $TMPSH 2>> $logfile <<EOF
1526 #! /bin/sh
1527 EOF
1528 chmod +x $TMPSH >> $logfile 2>&1
1529 if ! $TMPSH >> $logfile 2>&1; then
1530     cat <<EOF
1531 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1532 variable to another directory and make sure that it is not mounted noexec.
1533 EOF
1534     die "Sanity test failed."
1535 fi
1536
1537 filter_cflags=echo
1538 filter_cppflags=echo
1539 filter_asflags=echo
1540
1541 if   $cc -v 2>&1 | grep -qi ^gcc; then
1542     cc_type=gcc
1543     cc_version=__VERSION__
1544     if ! $cc -dumpversion | grep -q '^2\.'; then
1545         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1546         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1547     fi
1548 elif $cc --version 2>/dev/null | grep -q Intel; then
1549     cc_type=icc
1550     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1551     CC_DEPFLAGS='-MMD'
1552     AS_DEPFLAGS='-MMD'
1553 elif $cc -v 2>&1 | grep -q xlc; then
1554     cc_type=xlc
1555     cc_version="AV_STRINGIFY(__IBMC__)"
1556 elif $cc -V 2>/dev/null | grep -q Compaq; then
1557     cc_type=ccc
1558     cc_version="AV_STRINGIFY(__DECC_VER)"
1559     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1560     debuglevel=3
1561     add_ldflags -Wl,-z,now # calls to libots crash without this
1562 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1563     test -d "$sysroot" || die "No valid sysroot specified."
1564     cc_type=armcc
1565     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1566     armcc_conf="$PWD/armcc.conf"
1567     $cc --arm_linux_configure                 \
1568         --arm_linux_config_file="$armcc_conf" \
1569         --configure_sysroot="$sysroot"        \
1570         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1571         die "Error creating armcc configuration file."
1572     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1573     as_default="${cross_prefix}gcc"
1574     CC_DEPFLAGS='-MMD'
1575     AS_DEPFLAGS='-MMD'
1576 elif $cc -version 2>/dev/null | grep -q TMS470; then
1577     cc_type=tms470
1578     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1579     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1580     CC_O='-fr=$(@D)'
1581     as_default="${cross_prefix}gcc"
1582     ld_default="${cross_prefix}gcc"
1583     TMPO=$(basename $TMPC .c).o
1584     append TMPFILES $TMPO
1585     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1586     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1587     AS_DEPFLAGS='-MMD'
1588     filter_cflags=tms470_flags
1589     tms470_flags(){
1590         for flag; do
1591             case $flag in
1592                 -march=*|-mcpu=*)
1593                     case "${flag#*=}" in
1594                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1595                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1596                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1597                         armv6*|arm11*)          echo -mv=6   ;;
1598                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1599                                                 echo -mv=5e  ;;
1600                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1601                     esac
1602                     ;;
1603                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1604                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1605                 -msoft-float)   echo --float_support=vfplib       ;;
1606                 -Os)            echo -O3 -mf=2                    ;;
1607                 -O[0-3])        echo $flag -mf=5                  ;;
1608                 -g)             echo -g -mn                       ;;
1609             esac
1610         done
1611     }
1612 elif $cc -v 2>&1 | grep -q clang; then
1613     cc_type=clang
1614     cc_version=__VERSION__
1615     CC_DEPFLAGS='-MMD'
1616     AS_DEPFLAGS='-MMD'
1617 elif $cc -V 2>&1 | grep -q Sun; then
1618     cc_type=suncc
1619     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1620     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1621     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1622 fi
1623
1624 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1625
1626 : ${as_default:=$cc}
1627 : ${dep_cc_default:=$cc}
1628 : ${ld_default:=$cc}
1629 set_default as dep_cc ld
1630
1631 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1632 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1633
1634 add_cflags $extra_cflags
1635 add_asflags $extra_cflags
1636
1637 if test -n "$sysroot"; then
1638     case "$cc_type" in
1639         gcc)
1640             add_cppflags --sysroot="$sysroot"
1641             add_ldflags --sysroot="$sysroot"
1642         ;;
1643         tms470)
1644             add_cppflags -I"$sysinclude"
1645             add_ldflags  --sysroot="$sysroot"
1646         ;;
1647         clang)
1648             add_cppflags -isysroot="$sysroot"
1649             add_ldflags -isysroot="$sysroot"
1650         ;;
1651     esac
1652 fi
1653
1654 if test "$cpu" = host; then
1655     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1656
1657     case "$cc_type" in
1658         gcc)
1659             check_native(){
1660                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1661                 awk "/$1=/{ match(\$0, /$1=(\\w+)/, a);print a[1];exit }" $TMPE
1662             }
1663             cpu=$(check_native -march || check_native -mcpu)
1664         ;;
1665     esac
1666
1667     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1668 fi
1669
1670 # Add processor-specific flags
1671 case $cpu in
1672     601|ppc601|PowerPC601)
1673         cpuflags="-mcpu=601"
1674     ;;
1675     603*|ppc603*|PowerPC603*)
1676         cpuflags="-mcpu=603"
1677     ;;
1678     604*|ppc604*|PowerPC604*)
1679         cpuflags="-mcpu=604"
1680     ;;
1681     G3|g3|75*|ppc75*|PowerPC75*)
1682         cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1683     ;;
1684     G4|g4|745*|ppc745*|PowerPC745*)
1685         cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1686     ;;
1687     74*|ppc74*|PowerPC74*)
1688         cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1689     ;;
1690     G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1691         cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1692     ;;
1693     Cell|CELL|cell)
1694         cpuflags="-mcpu=cell"
1695         enable ldbrx
1696     ;;
1697     # targets that do NOT support conditional mov (cmov)
1698     i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1699         cpuflags="-march=$cpu"
1700         disable cmov
1701     ;;
1702     # targets that do support conditional mov (cmov)
1703     i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
1704         cpuflags="-march=$cpu"
1705         enable cmov
1706         enable fast_cmov
1707     ;;
1708     # targets that do support conditional mov but on which it's slow
1709     pentium4|pentium4m|prescott|nocona)
1710         cpuflags="-march=$cpu"
1711         enable cmov
1712         disable fast_cmov
1713     ;;
1714     sparc64)
1715         cpuflags="-mcpu=v9"
1716     ;;
1717     arm11*|cortex*)
1718         cpuflags="-mcpu=$cpu"
1719         enable fast_unaligned
1720     ;;
1721     armv[67]*)
1722         cpuflags="-march=$cpu"
1723         enable fast_unaligned
1724     ;;
1725     armv*)
1726         cpuflags="-march=$cpu"
1727     ;;
1728     arm*)
1729         cpuflags="-mcpu=$cpu"
1730     ;;
1731     ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1732         enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1733     ;;
1734     bf*)
1735         cpuflags="-mcpu=$cpu"
1736     ;;
1737     mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1738         cpuflags="-march=$cpu"
1739     ;;
1740     ap7[02]0[0-2])
1741         subarch="avr32_ap"
1742         cpuflags="-mpart=$cpu"
1743     ;;
1744     ap)
1745         subarch="avr32_ap"
1746         cpuflags="-march=$cpu"
1747     ;;
1748     uc3[ab]*)
1749         subarch="avr32_uc"
1750         cpuflags="-mcpu=$cpu"
1751     ;;
1752     uc)
1753         subarch="avr32_uc"
1754         cpuflags="-march=$cpu"
1755     ;;
1756     generic)
1757     ;;
1758     *)
1759         echo "WARNING: Unknown CPU \"$cpu\", ignored."
1760     ;;
1761 esac
1762
1763 add_cflags $cpuflags
1764 add_asflags $cpuflags
1765
1766 # compiler sanity check
1767 check_exec <<EOF
1768 int main(void){ return 0; }
1769 EOF
1770 if test "$?" != 0; then
1771     echo "$cc is unable to create an executable file."
1772     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1773         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1774         echo "Only do this if you know what cross compiling means."
1775     fi
1776     die "C compiler test failed."
1777 fi
1778
1779 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1780 check_cflags -std=c99
1781 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1782 #include <stdlib.h>
1783 EOF
1784 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1785 #include <stdlib.h>
1786 EOF
1787
1788 check_host_cflags -std=c99
1789
1790 case "$arch" in
1791     alpha)
1792         arch="alpha"
1793         enable fast_64bit
1794         check_cflags -mieee
1795         spic=$shared
1796     ;;
1797     arm|armv[4567]*l)
1798         arch="arm"
1799     ;;
1800     avr32)
1801     ;;
1802     bfin)
1803         arch="bfin"
1804     ;;
1805     ia64)
1806         arch="ia64"
1807         enable fast_64bit
1808         spic=$shared
1809         # HACK: currently fails to build if .bss is > 4MB and shared libs are built
1810         enabled shared && enable_weak hardcoded_tables
1811     ;;
1812     m68k)
1813         arch="m68k"
1814     ;;
1815     mips|mipsel|IP*)
1816         arch="mips"
1817         spic=$shared
1818     ;;
1819     mips64)
1820         arch="mips"
1821         subarch="mips64"
1822         enable fast_64bit
1823         spic=$shared
1824     ;;
1825     parisc|hppa)
1826         arch="parisc"
1827         spic=$shared
1828     ;;
1829     parisc64|hppa64)
1830         arch="parisc"
1831         enable fast_64bit
1832         spic=$shared
1833     ;;
1834     "Power Macintosh"|ppc|powerpc)
1835         arch="ppc"
1836         enable fast_unaligned
1837     ;;
1838     ppc64)
1839         arch="ppc"
1840         subarch="ppc64"
1841         enable fast_64bit
1842         enable fast_unaligned
1843     ;;
1844     s390|s390x)
1845         arch="s390"
1846     ;;
1847     sh4|sh)
1848         arch="sh4"
1849     ;;
1850     sparc)
1851         arch="sparc"
1852         spic=$shared
1853     ;;
1854     sun4u|sparc64)
1855         arch="sparc"
1856         subarch="sparc64"
1857         enable fast_64bit
1858         spic=$shared
1859     ;;
1860     i386|i486|i586|i686|i86pc|BePC|x86_64|amd64)
1861         arch="x86"
1862         subarch="x86_32"
1863         enable fast_unaligned
1864         check_cc <<EOF && enable fast_64bit && subarch="x86_64" && spic=$shared
1865         int test[(int)sizeof(char*) - 7];
1866 EOF
1867         if test "$subarch" = "x86_64"; then
1868             enable cmov
1869             enable fast_cmov
1870         fi
1871     ;;
1872     *)
1873         arch="unknown"
1874     ;;
1875 esac
1876
1877 enable $arch $subarch
1878 enabled spic && enable pic
1879
1880 # OS specific
1881 case $target_os in
1882     beos|haiku|zeta)
1883         prefix_default="$HOME/config"
1884         # helps building libavcodec
1885         add_cppflags -DPIC
1886         add_cflags -fomit-frame-pointer
1887         # 3 gcc releases known for BeOS, each with ugly bugs
1888         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1889         case "$gcc_version" in
1890           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1891             disable mmx
1892             ;;
1893           *20010315*) echo "BeBits gcc"
1894             add_cflags -fno-expensive-optimizations
1895             ;;
1896         esac
1897         SHFLAGS=-nostart
1898         # enable BeOS things
1899         enable audio_beos
1900         # no need for libm, but the inet stuff
1901         # Check for BONE
1902         # XXX: actually should check for NOT net_server
1903         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1904             network_extralibs="-lbind -lsocket"
1905         else
1906             enable beos_netserver
1907             network_extralibs="-lnet"
1908         fi ;;
1909     sunos)
1910         FFSERVERLDFLAGS=""
1911         SHFLAGS='-shared -Wl,-h,$$(@F)'
1912         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
1913         network_extralibs="-lsocket -lnsl"
1914         add_cppflags -D__EXTENSIONS__
1915         ;;
1916     netbsd)
1917         oss_indev_extralibs="-lossaudio"
1918         oss_outdev_extralibs="-lossaudio"
1919         ;;
1920     openbsd)
1921         enable malloc_aligned
1922         enable pic
1923         SHFLAGS='-shared'
1924         oss_indev_extralibs="-lossaudio"
1925         oss_outdev_extralibs="-lossaudio"
1926         ;;
1927     freebsd|dragonfly)
1928         enable malloc_aligned
1929         ;;
1930     bsd/os)
1931         osextralibs="-lpoll -lgnugetopt"
1932         strip="strip -d"
1933         ;;
1934     darwin)
1935         enable malloc_aligned
1936         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1937         strip="strip -x"
1938         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1939         SLIBSUF=".dylib"
1940         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1941         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1942         FFSERVERLDFLAGS=-Wl,-bind_at_load
1943         objformat="macho"
1944         enabled x86_64 && objformat="macho64"
1945         enabled_any pic shared ||
1946             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
1947         ;;
1948     mingw32*)
1949         if test $target_os = "mingw32ce"; then
1950             disable network
1951         else
1952             target_os=mingw32
1953         fi
1954         LIBTARGET=i386
1955         if enabled x86_64; then
1956             enable malloc_aligned
1957             LIBTARGET=x64
1958         elif enabled arm; then
1959             LIBTARGET=arm
1960         fi
1961         shlibdir_default="$bindir_default"
1962         disable ffserver
1963         SLIBPREF=""
1964         SLIBSUF=".dll"
1965         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1966         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1967         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1968         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1969             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
1970             install -d "$(LIBDIR)"; \
1971             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
1972         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1973         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1974         objformat="win32"
1975         enable dos_paths
1976         check_cflags -fno-common
1977         if ! enabled x86_64; then
1978             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1979                 die "ERROR: MinGW runtime version must be >= 3.15."
1980             enabled_any avisynth vfwcap_indev &&
1981                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1982                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
1983             fi
1984         ;;
1985     cygwin*)
1986         target_os=cygwin
1987         shlibdir_default="$bindir_default"
1988         SLIBPREF="cyg"
1989         SLIBSUF=".dll"
1990         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1991         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1992         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1993         objformat="win32"
1994         enable dos_paths
1995         check_cflags -fno-common
1996         ;;
1997     *-dos|freedos|opendos)
1998         disable ffplay ffserver
1999         disable $INDEV_LIST $OUTDEV_LIST
2000         network_extralibs="-lsocket"
2001         objformat="coff"
2002         enable dos_paths
2003         ;;
2004     linux)
2005         enable dv1394
2006         ;;
2007     irix*)
2008         target_os=irix
2009         ranlib="echo ignoring ranlib"
2010         ;;
2011     os/2*)
2012         strip="lxlite"
2013         ln_s="cp -f"
2014         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2015         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2016         FFSERVERLDFLAGS=""
2017         LIBSUF="_s.a"
2018         SLIBPREF=""
2019         SLIBSUF=".dll"
2020         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2021         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2022         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2023           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2024           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2025           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2026           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2027           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2028         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2029           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2030         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2031         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2032         enable dos_paths
2033         ;;
2034     gnu/kfreebsd)
2035         ;;
2036     gnu)
2037         ;;
2038
2039     *)
2040         die "Unknown OS '$target_os'."
2041         ;;
2042 esac
2043
2044 set_default $PATHS_LIST
2045
2046 add_extralibs $osextralibs
2047
2048 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2049 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2050
2051 # we need to build at least one lib type
2052 if ! enabled_any static shared; then
2053     cat <<EOF
2054 At least one library type must be built.
2055 Specify --enable-static to build the static libraries or --enable-shared to
2056 build the shared libraries as well. To only build the shared libraries specify
2057 --disable-static in addition to --enable-shared.
2058 EOF
2059     exit 1;
2060 fi
2061
2062 disabled static && LIBNAME=""
2063
2064 if enabled_any libfaad libfaadbin ; then
2065     if check_header faad.h; then
2066         check_cc <<EOF
2067 #include <faad.h>
2068 #ifndef FAAD2_VERSION
2069 ok faad1
2070 #endif
2071 int main(void) { return 0; }
2072 EOF
2073         test $? = 0 && enable libfaad2
2074     else
2075         die "FAAD test failed."
2076     fi
2077 fi
2078
2079
2080 die_license_disabled() {
2081     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2082 }
2083
2084 die_license_disabled gpl libfaad2
2085 die_license_disabled gpl libx264
2086 die_license_disabled gpl libxvid
2087 die_license_disabled gpl postproc
2088 die_license_disabled gpl x11grab
2089
2090 die_license_disabled nonfree libfaac
2091
2092 die_license_disabled version3 libopencore_amrnb
2093 die_license_disabled version3 libopencore_amrwb
2094
2095 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2096
2097 check_deps $ARCH_EXT_LIST
2098
2099 disabled optimizations || check_cflags -fomit-frame-pointer
2100
2101 enable_pic() {
2102     enable pic
2103     add_cppflags -DPIC
2104     add_cflags   -fPIC
2105     add_asflags  -fPIC
2106 }
2107
2108 enabled pic && enable_pic
2109
2110 check_cc <<EOF || die "Symbol mangling check failed."
2111 int ff_extern;
2112 EOF
2113 sym=$($nm -P -g $TMPO | grep ff_extern)
2114 extern_prefix=${sym%%ff_extern*}
2115
2116 check_cc <<EOF && enable inline_asm
2117 void foo(void) { __asm__ volatile ("" ::); }
2118 EOF
2119
2120 _restrict=
2121 for restrict_keyword in restrict __restrict__ __restrict; do
2122     check_cc <<EOF && _restrict=$restrict_keyword && break
2123 void foo(char * $restrict_keyword p);
2124 EOF
2125 done
2126
2127 check_cc <<EOF && enable attribute_packed
2128 struct { int x; } __attribute__((packed)) x;
2129 EOF
2130
2131 check_cc <<EOF || die "endian test failed"
2132 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2133 EOF
2134 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2135
2136 if enabled arm; then
2137
2138     check_cflags -marm
2139
2140     check_ld <<EOF && enable vfp_args
2141 __asm__ (".eabi_attribute 28, 1");
2142 int main(void) { return 0; }
2143 EOF
2144
2145     # We have to check if pld is a nop and disable it.
2146     check_asm pld '"pld [r0]"'
2147
2148     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2149     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2150     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2151     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2152     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2153     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2154
2155     enabled_all armv6t2 shared !pic && enable_pic
2156
2157 elif enabled mips; then
2158
2159     check_asm loongson '"dmult.g $1, $2, $3"'
2160     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2161
2162 elif enabled ppc; then
2163
2164     check_asm dcbzl     '"dcbzl 0, 1"'
2165     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2166     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2167
2168     # AltiVec flags: The FSF version of GCC differs from the Apple version
2169     if enabled altivec; then
2170         check_cflags -maltivec -mabi=altivec &&
2171         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2172         check_cflags -faltivec
2173
2174         # check if our compiler supports Motorola AltiVec C API
2175         check_cc <<EOF || disable altivec
2176 $inc_altivec_h
2177 int main(void) {
2178     vector signed int v1, v2, v3;
2179     v1 = vec_add(v2,v3);
2180     return 0;
2181 }
2182 EOF
2183
2184         # check if our compiler supports braces for vector declarations
2185         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2186 $inc_altivec_h
2187 int main (void) { (vector int) {1}; return 0; }
2188 EOF
2189     fi
2190
2191 elif enabled sparc; then
2192
2193     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2194         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2195
2196 elif enabled x86; then
2197
2198     # check whether EBP is available on x86
2199     # As 'i' is stored on the stack, this program will crash
2200     # if the base pointer is used to access it because the
2201     # base pointer is cleared in the inline assembly code.
2202     check_exec_crash <<EOF && enable ebp_available
2203     volatile int i=0;
2204     __asm__ volatile (
2205         "xorl %%ebp, %%ebp"
2206     ::: "%ebp");
2207     return i;
2208 EOF
2209
2210     # check whether EBX is available on x86
2211     check_asm ebx_available '""::"b"(0)' &&
2212         check_asm ebx_available '"":::"%ebx"'
2213
2214     # check whether more than 10 operands are supported
2215     check_cc <<EOF && enable ten_operands
2216 int main(void) {
2217     int x=0;
2218     __asm__ volatile(
2219         ""
2220         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2221     );
2222     return 0;
2223 }
2224 EOF
2225
2226     # check whether binutils is new enough to compile SSSE3/MMX2
2227     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2228     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2229
2230     check_asm bswap '"bswap %%eax" ::: "%eax"'
2231
2232     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2233     enabled     x86_64        && append YASMFLAGS "-m amd64"
2234     enabled     pic           && append YASMFLAGS "-DPIC"
2235     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2236     case "$objformat" in
2237         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2238         macho64)              append YASMFLAGS "-DPIC" ;;
2239     esac
2240     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2241
2242 fi
2243
2244 if check_func dlopen; then
2245     ldl=
2246 elif check_func dlopen -ldl; then
2247     ldl=-ldl
2248 fi
2249
2250 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2251 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2252
2253 check_func  fork
2254 check_func  gethrtime
2255 check_func  getrusage
2256 check_func  inet_aton $network_extralibs
2257 check_func  isatty
2258 check_func  memalign
2259 check_func  mkstemp
2260 check_func  posix_memalign
2261 check_func_headers io.h setmode
2262 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2263 check_func_headers windows.h GetProcessTimes
2264 check_func_headers windows.h VirtualAlloc
2265
2266 check_header conio.h
2267 check_header dlfcn.h
2268 check_header malloc.h
2269 check_header poll.h
2270 check_header sys/mman.h
2271 check_header sys/resource.h
2272 check_header sys/select.h
2273 check_header termios.h
2274 check_header vdpau/vdpau.h
2275 check_header vdpau/vdpau_x11.h
2276 check_header X11/extensions/XvMClib.h
2277
2278 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2279      enabled_any $need_memalign ; then
2280     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2281 fi
2282
2283 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2284 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2285
2286 # check for some common methods of building with pthread support
2287 # do this before the optional library checks as some of them require pthreads
2288 if enabled pthreads; then
2289     if check_func pthread_create; then
2290         :
2291     elif check_func pthread_create -pthread; then
2292         add_cflags -pthread
2293         add_extralibs -pthread
2294     elif check_func pthread_create -pthreads; then
2295         add_cflags -pthreads
2296         add_extralibs -pthreads
2297     elif check_func pthread_create -lpthreadGC2; then
2298         add_extralibs -lpthreadGC2
2299     elif ! check_lib pthread.h pthread_create -lpthread; then
2300         die "ERROR: can't find pthreads library"
2301     fi
2302 fi
2303
2304 for thread in $THREADS_LIST; do
2305     if enabled $thread; then
2306         test -n "$thread_type" &&
2307             die "ERROR: Only one thread type must be selected." ||
2308             thread_type="$thread"
2309     fi
2310 done
2311
2312 check_lib math.h sin -lm
2313 check_lib va/va.h vaInitialize -lva
2314
2315 check_func llrint
2316 check_func log2
2317 check_func lrint
2318 check_func lrintf
2319 check_func round
2320 check_func roundf
2321 check_func truncf
2322
2323 # these are off by default, so fail if requested and not available
2324 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2325 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2326                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2327                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2328 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2329 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2330 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2331 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2332 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2333 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2334 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2335 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2336 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2337                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2338 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2339 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2340 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2341 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2342                       { check_cpp_condition x264.h "X264_BUILD >= 78" ||
2343                         die "ERROR: libx264 version must be >= 0.78."; }
2344 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2345 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2346
2347 # libdc1394 check
2348 if enabled libdc1394; then
2349     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2350         enable libdc1394_2; } ||
2351     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2352         enable libdc1394_1; } ||
2353     die "ERROR: No version of libdc1394 found "
2354 fi
2355
2356 disable sdl_too_old
2357 disable sdl
2358 SDL_CONFIG="${cross_prefix}sdl-config"
2359 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2360     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2361     sdl_libs=$("${SDL_CONFIG}" --libs)
2362     temp_cflags $sdl_cflags
2363     temp_extralibs $sdl_libs
2364     if check_lib2 SDL.h SDL_Init; then
2365         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2366         if test "$_sdlversion" -lt 121 ; then
2367             enable sdl_too_old
2368         else
2369             enable sdl
2370             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2371 #include <SDL.h>
2372 int main(int argc, char **argv){
2373     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2374     int w = vi->current_w;
2375     return 0;
2376 }
2377 EOF
2378         fi
2379     fi
2380     restore_flags
2381 fi
2382
2383 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2384
2385 if enabled network; then
2386     check_type "sys/types.h sys/socket.h" socklen_t
2387     # Prefer arpa/inet.h over winsock2
2388     if check_header arpa/inet.h ; then
2389         check_func closesocket
2390     elif check_header winsock2.h ; then
2391         check_func_headers winsock2.h closesocket -lws2 && \
2392             network_extralibs="-lws2" || \
2393         { check_func_headers winsock2.h closesocket -lws2_32 && \
2394             network_extralibs="-lws2_32"; }
2395         check_type ws2tcpip.h socklen_t
2396     else
2397         disable network
2398     fi
2399 fi
2400
2401 enabled_all network ipv6 && check_ld <<EOF || disable ipv6
2402 #include <sys/types.h>
2403 #include <sys/socket.h>
2404 #include <netinet/in.h>
2405 #include <netdb.h>
2406 int main(void) {
2407     struct sockaddr_storage saddr;
2408     struct ipv6_mreq mreq6;
2409     getaddrinfo(0,0,0,0);
2410     getnameinfo(0,0,0,0,0,0,0);
2411     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2412 }
2413 EOF
2414
2415 check_header linux/videodev.h
2416 check_header linux/videodev2.h
2417 check_header sys/videoio.h
2418
2419 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2420
2421 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2422 { check_header dev/bktr/ioctl_meteor.h &&
2423   check_header dev/bktr/ioctl_bt848.h; } ||
2424 { check_header machine/ioctl_meteor.h &&
2425   check_header machine/ioctl_bt848.h; } ||
2426 { check_header dev/video/meteor/ioctl_meteor.h &&
2427   check_header dev/video/bktr/ioctl_bt848.h; } ||
2428 check_header dev/ic/bt8xx.h
2429
2430 check_header sys/soundcard.h
2431 check_header soundcard.h
2432
2433 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2434
2435 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2436
2437 enabled x11grab                         &&
2438 check_header X11/Xlib.h                 &&
2439 check_header X11/extensions/XShm.h      &&
2440 check_func XOpenDisplay -lX11           &&
2441 check_func XShmCreateImage -lX11 -lXext
2442
2443 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2444
2445 # add some useful compiler flags if supported
2446 check_cflags -Wdeclaration-after-statement
2447 check_cflags -Wall
2448 check_cflags -Wno-switch
2449 check_cflags -Wdisabled-optimization
2450 check_cflags -Wpointer-arith
2451 check_cflags -Wredundant-decls
2452 check_cflags -Wno-pointer-sign
2453 check_cflags -Wcast-qual
2454 check_cflags -Wwrite-strings
2455 check_cflags -Wtype-limits
2456 check_cflags -Wundef
2457 enabled extra_warnings && check_cflags -Winline
2458
2459 # add some linker flags
2460 check_ldflags -Wl,--warn-common
2461 check_ldflags -Wl,--as-needed
2462 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2463 check_ldflags -Wl,-Bsymbolic
2464
2465 if enabled small; then
2466     check_cflags -Os            # not all compilers support -Os
2467     optimizations="small"
2468 elif enabled optimizations; then
2469     if enabled xlc; then
2470         add_cflags  -O5
2471         add_ldflags -O5
2472     elif enabled ccc; then
2473         add_cflags -fast
2474     else
2475         add_cflags -O3
2476     fi
2477 fi
2478 check_cflags -fno-math-errno
2479 check_cflags -fno-signed-zeros
2480
2481 if enabled icc; then
2482     # Just warnings, no remarks
2483     check_cflags -w1
2484     # -wd: Disable following warnings
2485     # 144, 167, 556: -Wno-pointer-sign
2486     # 10006: ignoring unknown option -fno-signed-zeros
2487     # 10156: ignoring option '-W'; no argument required
2488     check_cflags -wd144,167,556,10006,10156
2489     # 11030: Warning unknown option --as-needed
2490     # 10156: ignoring option '-export'; no argument required
2491     check_ldflags -wd10156,11030
2492     # Allow to compile with optimizations
2493     check_ldflags -march=$cpu
2494     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2495     enable ebp_available
2496 elif enabled ccc; then
2497     # disable some annoying warnings
2498     add_cflags -msg_disable cvtu32to64
2499     add_cflags -msg_disable embedcomment
2500     add_cflags -msg_disable needconstext
2501     add_cflags -msg_disable nomainieee
2502     add_cflags -msg_disable ptrmismatch1
2503     add_cflags -msg_disable unreachcode
2504 elif enabled gcc; then
2505     check_cflags -fno-tree-vectorize
2506 elif enabled clang; then
2507     check_cflags -Qunused-arguments
2508 fi
2509
2510 if enabled gprof; then
2511     add_cflags  -p
2512     add_ldflags -p
2513 fi
2514
2515 # Find out if the .align argument is a power of two or not.
2516 check_asm asmalign_pot '".align 3"'
2517
2518 enabled_any $DECODER_LIST      && enable decoders
2519 enabled_any $ENCODER_LIST      && enable encoders
2520 enabled_any $HWACCEL_LIST      && enable hwaccels
2521 enabled_any $BSF_LIST          && enable bsfs
2522 enabled_any $DEMUXER_LIST      && enable demuxers
2523 enabled_any $MUXER_LIST        && enable muxers
2524 enabled_any $FILTER_LIST       && enable filters
2525 enabled_any $INDEV_LIST        && enable indevs
2526 enabled_any $OUTDEV_LIST       && enable outdevs
2527 enabled_any $PROTOCOL_LIST     && enable protocols
2528
2529 enabled_any $THREADS_LIST      && enable threads
2530
2531 check_deps $CONFIG_LIST       \
2532            $CONFIG_EXTRA      \
2533            $HAVE_LIST         \
2534            $DECODER_LIST      \
2535            $ENCODER_LIST      \
2536            $HWACCEL_LIST      \
2537            $PARSER_LIST       \
2538            $BSF_LIST          \
2539            $DEMUXER_LIST      \
2540            $MUXER_LIST        \
2541            $FILTER_LIST       \
2542            $INDEV_LIST        \
2543            $OUTDEV_LIST       \
2544            $PROTOCOL_LIST     \
2545
2546 echo "install prefix            $prefix"
2547 echo "source path               $source_path"
2548 echo "C compiler                $cc"
2549 echo ".align is power-of-two    $asmalign_pot"
2550 echo "ARCH                      $arch ($cpu)"
2551 if test "$build_suffix" != ""; then
2552     echo "build suffix              $build_suffix"
2553 fi
2554 if test "$extra_version" != ""; then
2555     echo "version string suffix     $extra_version"
2556 fi
2557 echo "big-endian                ${bigendian-no}"
2558 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2559 if enabled x86; then
2560     echo "yasm                      ${yasm-no}"
2561     echo "MMX enabled               ${mmx-no}"
2562     echo "MMX2 enabled              ${mmx2-no}"
2563     echo "3DNow! enabled            ${amd3dnow-no}"
2564     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2565     echo "SSE enabled               ${sse-no}"
2566     echo "SSSE3 enabled             ${ssse3-no}"
2567     echo "CMOV enabled              ${cmov-no}"
2568     echo "CMOV is fast              ${fast_cmov-no}"
2569     echo "EBX available             ${ebx_available-no}"
2570     echo "EBP available             ${ebp_available-no}"
2571     echo "10 operands supported     ${ten_operands-no}"
2572 fi
2573 if enabled arm; then
2574     echo "ARMv5TE enabled           ${armv5te-no}"
2575     echo "ARMv6 enabled             ${armv6-no}"
2576     echo "ARMv6T2 enabled           ${armv6t2-no}"
2577     echo "ARM VFP enabled           ${armvfp-no}"
2578     echo "IWMMXT enabled            ${iwmmxt-no}"
2579     echo "NEON enabled              ${neon-no}"
2580 fi
2581 if enabled mips; then
2582     echo "MMI enabled               ${mmi-no}"
2583 fi
2584 if enabled ppc; then
2585     echo "AltiVec enabled           ${altivec-no}"
2586     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2587     echo "dcbzl available           ${dcbzl-no}"
2588     echo "performance report        ${powerpc_perf-no}"
2589 fi
2590 if enabled sparc; then
2591     echo "VIS enabled               ${vis-no}"
2592 fi
2593 echo "gprof enabled             ${gprof-no}"
2594 echo "debug symbols             ${debug-no}"
2595 echo "strip symbols             ${stripping-no}"
2596 echo "optimizations             ${optimizations-no}"
2597 echo "static                    ${static-no}"
2598 echo "shared                    ${shared-no}"
2599 echo "postprocessing support    ${postproc-no}"
2600 echo "new filter support        ${avfilter-no}"
2601 echo "filters using lavformat   ${avfilter_lavf-no}"
2602 echo "network support           ${network-no}"
2603 if enabled network; then
2604     echo "IPv6 support              ${ipv6-no}"
2605 fi
2606 echo "threading support         ${thread_type-no}"
2607 echo "SDL support               ${sdl-no}"
2608 if enabled sdl_too_old; then
2609     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2610 fi
2611 echo "Sun medialib support      ${mlib-no}"
2612 echo "AVISynth enabled          ${avisynth-no}"
2613 echo "libdc1394 support         ${libdc1394-no}"
2614 echo "libdirac enabled          ${libdirac-no}"
2615 echo "libfaac enabled           ${libfaac-no}"
2616 echo "libfaad enabled           ${libfaad-no}"
2617 echo "libfaad dlopened          ${libfaadbin-no}"
2618 echo "libgsm enabled            ${libgsm-no}"
2619 echo "libmp3lame enabled        ${libmp3lame-no}"
2620 echo "libnut enabled            ${libnut-no}"
2621 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2622 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2623 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2624 echo "libschroedinger enabled   ${libschroedinger-no}"
2625 echo "libspeex enabled          ${libspeex-no}"
2626 echo "libtheora enabled         ${libtheora-no}"
2627 echo "libvorbis enabled         ${libvorbis-no}"
2628 echo "libx264 enabled           ${libx264-no}"
2629 echo "libxvid enabled           ${libxvid-no}"
2630 echo "zlib enabled              ${zlib-no}"
2631 echo "bzlib enabled             ${bzlib-no}"
2632 echo
2633
2634 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2635     echo "Enabled ${type}s:"
2636     eval list=\$$(toupper $type)_LIST
2637     for part in $list; do
2638         enabled $part && echo ${part%_*}
2639     done | sort | pr -3 -t
2640     echo
2641 done
2642
2643 license="LGPL version 2.1 or later"
2644 if enabled nonfree; then
2645     license="nonfree and unredistributable"
2646 elif enabled gplv3; then
2647     license="GPL version 3 or later"
2648 elif enabled lgplv3; then
2649     license="LGPL version 3 or later"
2650 elif enabled gpl; then
2651     license="GPL version 2 or later"
2652 fi
2653
2654 echo "License: $license"
2655
2656 echo "Creating config.mak and config.h..."
2657
2658 enabled stripping || strip="echo skipping strip"
2659
2660 cat > config.mak <<EOF
2661 # Automatically generated by configure - do not modify!
2662 ifndef FFMPEG_CONFIG_MAK
2663 FFMPEG_CONFIG_MAK=1
2664 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2665 prefix=$prefix
2666 LIBDIR=\$(DESTDIR)$libdir
2667 SHLIBDIR=\$(DESTDIR)$shlibdir
2668 INCDIR=\$(DESTDIR)$incdir
2669 BINDIR=\$(DESTDIR)$bindir
2670 DATADIR=\$(DESTDIR)$datadir
2671 MANDIR=\$(DESTDIR)$mandir
2672 SRC_PATH="$source_path"
2673 SRC_PATH_BARE=$source_path
2674 BUILD_ROOT="$PWD"
2675 ARCH=$arch
2676 CC=$cc
2677 AS=$as
2678 LD=$ld
2679 DEPCC=$dep_cc
2680 YASM=$yasmexe
2681 AR=$ar
2682 RANLIB=$ranlib
2683 LN_S=$ln_s
2684 STRIP=$strip
2685 CPPFLAGS=$CPPFLAGS
2686 CFLAGS=$CFLAGS
2687 ASFLAGS=$ASFLAGS
2688 CC_O=$CC_O
2689 LDFLAGS=$LDFLAGS
2690 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2691 SHFLAGS=$SHFLAGS
2692 YASMFLAGS=$YASMFLAGS
2693 BUILDSUF=$build_suffix
2694 FULLNAME=$FULLNAME
2695 LIBPREF=$LIBPREF
2696 LIBSUF=$LIBSUF
2697 LIBNAME=$LIBNAME
2698 SLIBPREF=$SLIBPREF
2699 SLIBSUF=$SLIBSUF
2700 EXESUF=$EXESUF
2701 EXTRA_VERSION=$extra_version
2702 DEPFLAGS=$DEPFLAGS
2703 CCDEP=$CCDEP
2704 ASDEP=$ASDEP
2705 CC_DEPFLAGS=$CC_DEPFLAGS
2706 AS_DEPFLAGS=$AS_DEPFLAGS
2707 HOSTCC=$host_cc
2708 HOSTCFLAGS=$host_cflags
2709 HOSTEXESUF=$HOSTEXESUF
2710 HOSTLDFLAGS=$host_ldflags
2711 HOSTLIBS=$host_libs
2712 TARGET_EXEC=$target_exec
2713 TARGET_PATH=$target_path
2714 SDL_LIBS=$sdl_libs
2715 SDL_CFLAGS=$sdl_cflags
2716 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
2717 EXTRALIBS=$extralibs
2718 EOF
2719
2720 get_version(){
2721     name=$1
2722     file=$source_path/$2
2723     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2724     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2725     lcname=$(tolower $name)
2726     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2727     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2728 }
2729
2730 get_version LIBSWSCALE  libswscale/swscale.h
2731 get_version LIBPOSTPROC libpostproc/postprocess.h
2732 get_version LIBAVCODEC  libavcodec/avcodec.h
2733 get_version LIBAVDEVICE libavdevice/avdevice.h
2734 get_version LIBAVFORMAT libavformat/avformat.h
2735 get_version LIBAVUTIL   libavutil/avutil.h
2736 get_version LIBAVFILTER libavfilter/avfilter.h
2737
2738 enabled shared && cat >> config.mak <<EOF
2739 LIBTARGET=${LIBTARGET}
2740 SLIBNAME=${SLIBNAME}
2741 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
2742 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
2743 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
2744 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
2745 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
2746 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
2747 EOF
2748
2749 enabled asmalign_pot || align_shift="1 <<"
2750
2751 cat > $TMPH <<EOF
2752 /* Automatically generated by configure - do not modify! */
2753 #ifndef FFMPEG_CONFIG_H
2754 #define FFMPEG_CONFIG_H
2755 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
2756 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
2757 #define CC_TYPE "$cc_type"
2758 #define CC_VERSION $cc_version
2759 #define restrict $_restrict
2760 #define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
2761 #define EXTERN_PREFIX "${extern_prefix}"
2762 #define EXTERN_ASM ${extern_prefix}
2763 EOF
2764
2765 if enabled small || disabled optimizations; then
2766     echo "#define av_always_inline"  >> $TMPH
2767 fi
2768
2769 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2770 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2771 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2772                                       $CONFIG_EXTRA      \
2773                                       $DECODER_LIST      \
2774                                       $ENCODER_LIST      \
2775                                       $HWACCEL_LIST      \
2776                                       $PARSER_LIST       \
2777                                       $BSF_LIST          \
2778                                       $DEMUXER_LIST      \
2779                                       $MUXER_LIST        \
2780                                       $FILTER_LIST       \
2781                                       $PROTOCOL_LIST     \
2782                                       $INDEV_LIST        \
2783                                       $OUTDEV_LIST       \
2784
2785 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2786 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
2787
2788 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2789 cmp -s $TMPH config.h &&
2790     echo "config.h is unchanged" ||
2791     mv -f $TMPH config.h
2792
2793 # build tree in object directory if source path is different from current one
2794 if enabled source_path_used; then
2795     DIRS="
2796         doc
2797         libavcodec
2798         libavcodec/$arch
2799         libavdevice
2800         libavfilter
2801         libavformat
2802         libavutil
2803         libavutil/$arch
2804         libpostproc
2805         libswscale
2806         libswscale/$arch
2807         tests
2808         tools
2809     "
2810     FILES="
2811         Makefile
2812         common.mak
2813         subdir.mak
2814         doc/texi2pod.pl
2815         libavcodec/Makefile
2816         libavdevice/Makefile
2817         libavfilter/Makefile
2818         libavformat/Makefile
2819         libavutil/Makefile
2820         libpostproc/Makefile
2821         libswscale/Makefile
2822     "
2823     for dir in $DIRS ; do
2824         mkdir -p $dir
2825     done
2826     for f in $FILES ; do
2827         $ln_s "$source_path/$f" $f
2828     done
2829 fi
2830
2831
2832 # build pkg-config files
2833
2834 pkgconfig_generate(){
2835 name=$1
2836 shortname=${name#lib}${build_suffix}
2837 comment=$2
2838 version=$3
2839 libs=$4
2840 requires=$5
2841 cat <<EOF > $name/$name.pc
2842 prefix=$prefix
2843 exec_prefix=\${prefix}
2844 libdir=$libdir
2845 includedir=$incdir
2846
2847 Name: $name
2848 Description: $comment
2849 Version: $version
2850 Requires: $(enabled shared || echo $requires)
2851 Requires.private: $(enabled shared && echo $requires)
2852 Conflicts:
2853 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
2854 Libs.private: $(enabled shared && echo $libs)
2855 Cflags: -I\${includedir}
2856 EOF
2857 cat <<EOF > $name/$name-uninstalled.pc
2858 prefix=
2859 exec_prefix=
2860 libdir=\${pcfiledir}
2861 includedir=${source_path}
2862
2863 Name: $name
2864 Description: $comment
2865 Version: $version
2866 Requires: $requires
2867 Conflicts:
2868 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2869 Cflags: -I\${includedir}
2870 EOF
2871 }
2872
2873 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2874 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2875 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2876 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2877 enabled avfilter &&
2878     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2879 enabled postproc &&
2880     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2881 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"