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 mpeg4_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1135 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1136 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1137 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1138 msmpeg4v1_encoder_select="h263_encoder"
1139 msmpeg4v2_encoder_select="h263_encoder"
1140 msmpeg4v3_encoder_select="h263_encoder"
1141 nellymoser_decoder_select="fft mdct"
1142 nellymoser_encoder_select="fft mdct"
1143 png_decoder_select="zlib"
1144 png_encoder_select="zlib"
1145 qdm2_decoder_select="fft mdct rdft"
1146 rv10_encoder_select="h263_encoder"
1147 rv20_encoder_select="h263_encoder"
1148 rv30_decoder_select="golomb"
1149 rv40_decoder_select="golomb"
1150 shorten_decoder_select="golomb"
1151 sonic_decoder_select="golomb"
1152 sonic_encoder_select="golomb"
1153 sonic_ls_encoder_select="golomb"
1154 svq3_decoder_select="golomb"
1155 svq3_decoder_suggest="zlib"
1156 theora_decoder_select="vp3_decoder"
1157 tiff_decoder_suggest="zlib"
1158 tiff_encoder_suggest="zlib"
1159 tscc_decoder_select="zlib"
1160 vc1_vaapi_hwaccel_deps="va_va_h"
1161 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1162 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1163 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1164 vorbis_decoder_select="fft mdct"
1165 vorbis_encoder_select="fft mdct"
1166 vp6a_decoder_select="vp6_decoder"
1167 vp6f_decoder_select="vp6_decoder"
1168 wmav1_decoder_select="fft mdct"
1169 wmav1_encoder_select="fft mdct"
1170 wmav2_decoder_select="fft mdct"
1171 wmav2_encoder_select="fft mdct"
1172 wmv1_encoder_select="h263_encoder"
1173 wmv2_encoder_select="h263_encoder"
1174 wmv3_decoder_select="vc1_decoder"
1175 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1176 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1177 zlib_decoder_select="zlib"
1178 zlib_encoder_select="zlib"
1179 zmbv_decoder_select="zlib"
1180 zmbv_encoder_select="zlib"
1181
1182 # parsers
1183 h264_parser_select="golomb"
1184
1185 # external libraries
1186 libdirac_decoder_deps="libdirac !libschroedinger"
1187 libdirac_encoder_deps="libdirac"
1188 libfaac_encoder_deps="libfaac"
1189 libfaad_decoder_deps="libfaad"
1190 libfaadbin_decoder_extralibs='$ldl'
1191 libgsm_decoder_deps="libgsm"
1192 libgsm_encoder_deps="libgsm"
1193 libgsm_ms_decoder_deps="libgsm"
1194 libgsm_ms_encoder_deps="libgsm"
1195 libmp3lame_encoder_deps="libmp3lame"
1196 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1197 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1198 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1199 libopenjpeg_decoder_deps="libopenjpeg"
1200 libschroedinger_decoder_deps="libschroedinger"
1201 libschroedinger_encoder_deps="libschroedinger"
1202 libspeex_decoder_deps="libspeex"
1203 libtheora_encoder_deps="libtheora"
1204 libvorbis_encoder_deps="libvorbis"
1205 libx264_encoder_deps="libx264"
1206 libxvid_encoder_deps="libxvid"
1207
1208 # demuxers / muxers
1209 ac3_demuxer_deps="ac3_parser"
1210 asf_stream_muxer_select="asf_muxer"
1211 avisynth_demuxer_deps="avisynth"
1212 dirac_demuxer_deps="dirac_parser"
1213 ipod_muxer_select="mov_muxer"
1214 libnut_demuxer_deps="libnut"
1215 libnut_muxer_deps="libnut"
1216 matroska_audio_muxer_select="matroska_muxer"
1217 matroska_demuxer_suggest="zlib bzlib"
1218 mov_demuxer_suggest="zlib"
1219 mp3_demuxer_deps="mpegaudio_parser"
1220 mp4_muxer_select="mov_muxer"
1221 mpegtsraw_demuxer_select="mpegts_demuxer"
1222 mxf_d10_muxer_select="mxf_muxer"
1223 psp_muxer_select="mov_muxer"
1224 rtp_muxer_deps="network rtp_protocol"
1225 rtsp_demuxer_deps="sdp_demuxer"
1226 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1227 tg2_muxer_select="mov_muxer"
1228 tgp_muxer_select="mov_muxer"
1229 w64_demuxer_deps="wav_demuxer"
1230
1231 # indevs / outdevs
1232 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1233 alsa_indev_extralibs="-lasound"
1234 alsa_outdev_deps="alsa_asoundlib_h"
1235 alsa_outdev_extralibs="-lasound"
1236 audio_beos_indev_deps="audio_beos"
1237 audio_beos_indev_extralibs="-lmedia -lbe"
1238 audio_beos_outdev_deps="audio_beos"
1239 audio_beos_outdev_extralibs="-lmedia -lbe"
1240 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1241 dv1394_indev_deps="dv1394 dv_demuxer"
1242 jack_indev_deps="jack_jack_h"
1243 jack_indev_extralibs="-ljack"
1244 libdc1394_indev_deps="libdc1394"
1245 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1246 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1247 v4l_indev_deps="linux_videodev_h"
1248 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1249 vfwcap_indev_deps="capCreateCaptureWindow"
1250 vfwcap_indev_extralibs="-lvfw32"
1251 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1252 x11_grab_device_indev_extralibs="-lX11 -lXext"
1253
1254 # protocols
1255 gopher_protocol_deps="network"
1256 http_protocol_deps="network"
1257 rtmp_protocol_deps="tcp_protocol"
1258 rtp_protocol_deps="udp_protocol"
1259 tcp_protocol_deps="network"
1260 udp_protocol_deps="network"
1261
1262 # filters
1263 movie_filter_deps="avfilter_lavf"
1264
1265 # programs
1266 ffplay_deps="sdl"
1267 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1268 ffserver_extralibs='$ldl'
1269
1270 doc_deps="texi2html"
1271
1272 # default parameters
1273
1274 logfile="config.err"
1275
1276 # installation paths
1277 prefix_default="/usr/local"
1278 bindir_default='${prefix}/bin'
1279 datadir_default='${prefix}/share/ffmpeg'
1280 incdir_default='${prefix}/include'
1281 libdir_default='${prefix}/lib'
1282 mandir_default='${prefix}/share/man'
1283 shlibdir_default="$libdir_default"
1284
1285 # toolchain
1286 ar="ar"
1287 cc_default="gcc"
1288 cc_version=\"unknown\"
1289 host_cc_default="gcc"
1290 ln_s="ln -sf"
1291 nm_default="nm"
1292 objformat="elf"
1293 ranlib="ranlib"
1294 strip="strip"
1295 yasmexe="yasm"
1296
1297 # machine
1298 arch=$(uname -m)
1299 cpu="generic"
1300
1301 # OS
1302 target_os=$(tolower $(uname -s))
1303 host_os=$target_os
1304
1305 # configurable options
1306 enable debug
1307 enable doc
1308 enable fastdiv
1309 enable ffmpeg
1310 enable ffplay
1311 enable ffserver
1312 enable ipv6
1313 enable mpegaudio_hp
1314 enable network
1315 enable optimizations
1316 enable protocols
1317 enable static
1318 enable stripping
1319 enable swscale_alpha
1320
1321 # build settings
1322 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1323 FFSERVERLDFLAGS=-Wl,-E
1324 LIBPREF="lib"
1325 LIBSUF=".a"
1326 FULLNAME='$(NAME)$(BUILDSUF)'
1327 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1328 SLIBPREF="lib"
1329 SLIBSUF=".so"
1330 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1331 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1332 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1333 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1334
1335 CC_O='-o $@'
1336
1337 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1338 host_libs='-lm'
1339
1340 target_path='.'
1341
1342 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1343 # full relative path for objects in subdirectories for non-recursive Make.
1344 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1345 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1346
1347 # find source path
1348 source_path="$(dirname "$0")"
1349 enable source_path_used
1350 if test -f configure; then
1351     source_path="$(pwd)"
1352     disable source_path_used
1353 else
1354     source_path="$(cd "$source_path"; pwd)"
1355     echo "$source_path" | grep -q '[[:blank:]]' &&
1356         die "Out of tree builds are impossible with whitespace in source path."
1357     test -e "$source_path/config.h" &&
1358         die "Out of tree builds are impossible with config.h in source dir."
1359 fi
1360
1361 for v in "$@"; do
1362     r=${v#*=}
1363     l=${v%"$r"}
1364     r=$(sh_quote "$r")
1365     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1366 done
1367
1368 find_things(){
1369     thing=$1
1370     pattern=$2
1371     file=$source_path/$3
1372     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1373 }
1374
1375 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1376 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1377 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1378 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1379 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1380 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1381 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1382 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1383 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1384 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1385 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1386
1387 enable $ARCH_EXT_LIST \
1388        $DECODER_LIST \
1389        $ENCODER_LIST \
1390        $HWACCEL_LIST \
1391        $PARSER_LIST \
1392        $BSF_LIST \
1393        $DEMUXER_LIST \
1394        $MUXER_LIST \
1395        $FILTER_LIST \
1396        $PROTOCOL_LIST \
1397        $INDEV_LIST \
1398        $OUTDEV_LIST \
1399
1400 die_unknown(){
1401     echo "Unknown option \"$1\"."
1402     echo "See $0 --help for available options."
1403     exit 1
1404 }
1405
1406 show_list() {
1407     suffix=_$1
1408     shift
1409     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1410     exit 0
1411 }
1412
1413 for opt do
1414     optval="${opt#*=}"
1415     case "$opt" in
1416     --extra-ldflags=*) add_ldflags $optval
1417     ;;
1418     --extra-libs=*) add_extralibs $optval
1419     ;;
1420     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1421     ;;
1422     --enable-debug=*) debuglevel="$optval"
1423     ;;
1424     --enable-*=*|--disable-*=*)
1425     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1426     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1427     eval list=\$$(toupper $thing)_LIST
1428     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1429     $action $(filter "$name" $list)
1430     ;;
1431     --enable-?*|--disable-?*)
1432     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1433     if is_in $option $COMPONENT_LIST; then
1434         test $action = disable && action=unset
1435         eval $action \$$(toupper ${option%s})_LIST
1436     elif is_in $option $CMDLINE_SELECT; then
1437         $action $option
1438     else
1439         die_unknown $opt
1440     fi
1441     ;;
1442     --list-*)
1443         NAME="${opt#--list-}"
1444         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1445         NAME=${NAME%s}
1446         eval show_list $NAME \$$(toupper $NAME)_LIST
1447     ;;
1448     --help|-h) show_help
1449     ;;
1450     *)
1451     optname="${opt%%=*}"
1452     optname="${optname#--}"
1453     optname=$(echo "$optname" | sed 's/-/_/g')
1454     if is_in $optname $CMDLINE_SET; then
1455         eval $optname='$optval'
1456     elif is_in $optname $CMDLINE_APPEND; then
1457         append $optname "$optval"
1458     else
1459          die_unknown $opt
1460     fi
1461     ;;
1462     esac
1463 done
1464
1465 disabled logging && logfile=/dev/null
1466
1467 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1468 set >> $logfile
1469
1470 test -n "$cross_prefix" && enable cross_compile
1471
1472 ar="${cross_prefix}${ar}"
1473 cc_default="${cross_prefix}${cc_default}"
1474 nm_default="${cross_prefix}${nm_default}"
1475 ranlib="${cross_prefix}${ranlib}"
1476 strip="${cross_prefix}${strip}"
1477
1478 sysinclude_default="${sysroot}/usr/include"
1479
1480 set_default cc nm sysinclude
1481 enabled cross_compile || host_cc_default=$cc
1482 set_default host_cc
1483
1484 exesuf() {
1485     case $1 in
1486         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1487     esac
1488 }
1489
1490 EXESUF=$(exesuf $target_os)
1491 HOSTEXESUF=$(exesuf $host_os)
1492
1493 # set temporary file name
1494 : ${TMPDIR:=$TEMPDIR}
1495 : ${TMPDIR:=$TMP}
1496 : ${TMPDIR:=/tmp}
1497
1498 if ! check_cmd type mktemp; then
1499     # simple replacement for missing mktemp
1500     # NOT SAFE FOR GENERAL USE
1501     mktemp(){
1502         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1503     }
1504 fi
1505
1506 tmpfile(){
1507     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1508         (set -C; exec > $tmp) 2>/dev/null ||
1509         die "Unable to create temporary file in $TMPDIR."
1510     append TMPFILES $tmp
1511     eval $1=$tmp
1512 }
1513
1514 trap 'rm -f -- $TMPFILES' EXIT
1515 trap exit HUP INT TERM
1516
1517 tmpfile TMPC  .c
1518 tmpfile TMPE  $EXESUF
1519 tmpfile TMPH  .h
1520 tmpfile TMPO  .o
1521 tmpfile TMPS  .S
1522 tmpfile TMPSH .sh
1523
1524 unset -f mktemp
1525
1526 # make sure we can execute files in $TMPDIR
1527 cat > $TMPSH 2>> $logfile <<EOF
1528 #! /bin/sh
1529 EOF
1530 chmod +x $TMPSH >> $logfile 2>&1
1531 if ! $TMPSH >> $logfile 2>&1; then
1532     cat <<EOF
1533 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1534 variable to another directory and make sure that it is not mounted noexec.
1535 EOF
1536     die "Sanity test failed."
1537 fi
1538
1539 filter_cflags=echo
1540 filter_cppflags=echo
1541 filter_asflags=echo
1542
1543 if   $cc -v 2>&1 | grep -qi ^gcc; then
1544     cc_type=gcc
1545     cc_version=__VERSION__
1546     if ! $cc -dumpversion | grep -q '^2\.'; then
1547         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1548         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1549     fi
1550 elif $cc --version 2>/dev/null | grep -q Intel; then
1551     cc_type=icc
1552     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1553     CC_DEPFLAGS='-MMD'
1554     AS_DEPFLAGS='-MMD'
1555 elif $cc -v 2>&1 | grep -q xlc; then
1556     cc_type=xlc
1557     cc_version="AV_STRINGIFY(__IBMC__)"
1558 elif $cc -V 2>/dev/null | grep -q Compaq; then
1559     cc_type=ccc
1560     cc_version="AV_STRINGIFY(__DECC_VER)"
1561     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1562     debuglevel=3
1563     add_ldflags -Wl,-z,now # calls to libots crash without this
1564 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1565     test -d "$sysroot" || die "No valid sysroot specified."
1566     cc_type=armcc
1567     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1568     armcc_conf="$PWD/armcc.conf"
1569     $cc --arm_linux_configure                 \
1570         --arm_linux_config_file="$armcc_conf" \
1571         --configure_sysroot="$sysroot"        \
1572         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1573         die "Error creating armcc configuration file."
1574     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1575     as_default="${cross_prefix}gcc"
1576     CC_DEPFLAGS='-MMD'
1577     AS_DEPFLAGS='-MMD'
1578 elif $cc -version 2>/dev/null | grep -q TMS470; then
1579     cc_type=tms470
1580     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1581     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1582     CC_O='-fr=$(@D)'
1583     as_default="${cross_prefix}gcc"
1584     ld_default="${cross_prefix}gcc"
1585     TMPO=$(basename $TMPC .c).o
1586     append TMPFILES $TMPO
1587     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1588     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1589     AS_DEPFLAGS='-MMD'
1590     filter_cflags=tms470_flags
1591     tms470_flags(){
1592         for flag; do
1593             case $flag in
1594                 -march=*|-mcpu=*)
1595                     case "${flag#*=}" in
1596                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1597                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1598                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1599                         armv6*|arm11*)          echo -mv=6   ;;
1600                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1601                                                 echo -mv=5e  ;;
1602                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1603                     esac
1604                     ;;
1605                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1606                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1607                 -msoft-float)   echo --float_support=vfplib       ;;
1608                 -Os)            echo -O3 -mf=2                    ;;
1609                 -O[0-3])        echo $flag -mf=5                  ;;
1610                 -g)             echo -g -mn                       ;;
1611             esac
1612         done
1613     }
1614 elif $cc -v 2>&1 | grep -q clang; then
1615     cc_type=clang
1616     cc_version=__VERSION__
1617     CC_DEPFLAGS='-MMD'
1618     AS_DEPFLAGS='-MMD'
1619 elif $cc -V 2>&1 | grep -q Sun; then
1620     cc_type=suncc
1621     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1622     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1623     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1624 fi
1625
1626 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1627
1628 : ${as_default:=$cc}
1629 : ${dep_cc_default:=$cc}
1630 : ${ld_default:=$cc}
1631 set_default as dep_cc ld
1632
1633 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1634 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1635
1636 add_cflags $extra_cflags
1637 add_asflags $extra_cflags
1638
1639 if test -n "$sysroot"; then
1640     case "$cc_type" in
1641         gcc)
1642             add_cppflags --sysroot="$sysroot"
1643             add_ldflags --sysroot="$sysroot"
1644         ;;
1645         tms470)
1646             add_cppflags -I"$sysinclude"
1647             add_ldflags  --sysroot="$sysroot"
1648         ;;
1649         clang)
1650             add_cppflags -isysroot="$sysroot"
1651             add_ldflags -isysroot="$sysroot"
1652         ;;
1653     esac
1654 fi
1655
1656 if test "$cpu" = host; then
1657     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1658
1659     case "$cc_type" in
1660         gcc)
1661             check_native(){
1662                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1663                 awk "/$1=/{ match(\$0, /$1=(\\w+)/, a);print a[1];exit }" $TMPE
1664             }
1665             cpu=$(check_native -march || check_native -mcpu)
1666         ;;
1667     esac
1668
1669     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1670 fi
1671
1672 # Add processor-specific flags
1673 case $cpu in
1674     601|ppc601|PowerPC601)
1675         cpuflags="-mcpu=601"
1676     ;;
1677     603*|ppc603*|PowerPC603*)
1678         cpuflags="-mcpu=603"
1679     ;;
1680     604*|ppc604*|PowerPC604*)
1681         cpuflags="-mcpu=604"
1682     ;;
1683     G3|g3|75*|ppc75*|PowerPC75*)
1684         cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1685     ;;
1686     G4|g4|745*|ppc745*|PowerPC745*)
1687         cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1688     ;;
1689     74*|ppc74*|PowerPC74*)
1690         cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1691     ;;
1692     G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1693         cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1694     ;;
1695     Cell|CELL|cell)
1696         cpuflags="-mcpu=cell"
1697         enable ldbrx
1698     ;;
1699     # targets that do NOT support conditional mov (cmov)
1700     i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1701         cpuflags="-march=$cpu"
1702         disable cmov
1703     ;;
1704     # targets that do support conditional mov (cmov)
1705     i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
1706         cpuflags="-march=$cpu"
1707         enable cmov
1708         enable fast_cmov
1709     ;;
1710     # targets that do support conditional mov but on which it's slow
1711     pentium4|pentium4m|prescott|nocona)
1712         cpuflags="-march=$cpu"
1713         enable cmov
1714         disable fast_cmov
1715     ;;
1716     sparc64)
1717         cpuflags="-mcpu=v9"
1718     ;;
1719     arm11*|cortex*)
1720         cpuflags="-mcpu=$cpu"
1721         enable fast_unaligned
1722     ;;
1723     armv[67]*)
1724         cpuflags="-march=$cpu"
1725         enable fast_unaligned
1726     ;;
1727     armv*)
1728         cpuflags="-march=$cpu"
1729     ;;
1730     arm*)
1731         cpuflags="-mcpu=$cpu"
1732     ;;
1733     ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1734         enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1735     ;;
1736     bf*)
1737         cpuflags="-mcpu=$cpu"
1738     ;;
1739     mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1740         cpuflags="-march=$cpu"
1741     ;;
1742     ap7[02]0[0-2])
1743         subarch="avr32_ap"
1744         cpuflags="-mpart=$cpu"
1745     ;;
1746     ap)
1747         subarch="avr32_ap"
1748         cpuflags="-march=$cpu"
1749     ;;
1750     uc3[ab]*)
1751         subarch="avr32_uc"
1752         cpuflags="-mcpu=$cpu"
1753     ;;
1754     uc)
1755         subarch="avr32_uc"
1756         cpuflags="-march=$cpu"
1757     ;;
1758     generic)
1759     ;;
1760     *)
1761         echo "WARNING: Unknown CPU \"$cpu\", ignored."
1762     ;;
1763 esac
1764
1765 add_cflags $cpuflags
1766 add_asflags $cpuflags
1767
1768 # compiler sanity check
1769 check_exec <<EOF
1770 int main(void){ return 0; }
1771 EOF
1772 if test "$?" != 0; then
1773     echo "$cc is unable to create an executable file."
1774     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1775         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1776         echo "Only do this if you know what cross compiling means."
1777     fi
1778     die "C compiler test failed."
1779 fi
1780
1781 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1782 check_cflags -std=c99
1783 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1784 #include <stdlib.h>
1785 EOF
1786 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1787 #include <stdlib.h>
1788 EOF
1789
1790 check_host_cflags -std=c99
1791
1792 case "$arch" in
1793     alpha)
1794         arch="alpha"
1795         enable fast_64bit
1796         check_cflags -mieee
1797         spic=$shared
1798     ;;
1799     arm|armv[4567]*l)
1800         arch="arm"
1801     ;;
1802     avr32)
1803     ;;
1804     bfin)
1805         arch="bfin"
1806     ;;
1807     ia64)
1808         arch="ia64"
1809         enable fast_64bit
1810         spic=$shared
1811         # HACK: currently fails to build if .bss is > 4MB and shared libs are built
1812         enabled shared && enable_weak hardcoded_tables
1813     ;;
1814     m68k)
1815         arch="m68k"
1816     ;;
1817     mips|mipsel|IP*)
1818         arch="mips"
1819         spic=$shared
1820     ;;
1821     mips64)
1822         arch="mips"
1823         subarch="mips64"
1824         enable fast_64bit
1825         spic=$shared
1826     ;;
1827     parisc|hppa)
1828         arch="parisc"
1829         spic=$shared
1830     ;;
1831     parisc64|hppa64)
1832         arch="parisc"
1833         enable fast_64bit
1834         spic=$shared
1835     ;;
1836     "Power Macintosh"|ppc|powerpc)
1837         arch="ppc"
1838         enable fast_unaligned
1839     ;;
1840     ppc64)
1841         arch="ppc"
1842         subarch="ppc64"
1843         enable fast_64bit
1844         enable fast_unaligned
1845     ;;
1846     s390|s390x)
1847         arch="s390"
1848     ;;
1849     sh4|sh)
1850         arch="sh4"
1851     ;;
1852     sparc)
1853         arch="sparc"
1854         spic=$shared
1855     ;;
1856     sun4u|sparc64)
1857         arch="sparc"
1858         subarch="sparc64"
1859         enable fast_64bit
1860         spic=$shared
1861     ;;
1862     i386|i486|i586|i686|i86pc|BePC|x86_64|amd64)
1863         arch="x86"
1864         subarch="x86_32"
1865         enable fast_unaligned
1866         check_cc <<EOF && enable fast_64bit && subarch="x86_64" && spic=$shared
1867         int test[(int)sizeof(char*) - 7];
1868 EOF
1869         if test "$subarch" = "x86_64"; then
1870             enable cmov
1871             enable fast_cmov
1872         fi
1873     ;;
1874     *)
1875         arch="unknown"
1876     ;;
1877 esac
1878
1879 enable $arch $subarch
1880 enabled spic && enable pic
1881 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
1882
1883 # OS specific
1884 case $target_os in
1885     beos|haiku|zeta)
1886         prefix_default="$HOME/config"
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 $SHFLAGS"
1913         network_extralibs="-lsocket -lnsl"
1914         add_cppflags -D__EXTENSIONS__
1915         ;;
1916     netbsd)
1917         oss_indev_extralibs="-lossaudio"
1918         oss_outdev_extralibs="-lossaudio"
1919         ;;
1920     openbsd)
1921         enable malloc_aligned
1922         # On OpenBSD 4.5. the compiler does not use PIC unless
1923         # explicitly using -fPIC. FFmpeg builds fine without PIC,
1924         # however the generated executable will not do anything
1925         # (simply quits with exit-code 1, no crash, no output).
1926         # Thus explicitly enable PIC here.
1927         enable pic
1928         SHFLAGS='-shared'
1929         oss_indev_extralibs="-lossaudio"
1930         oss_outdev_extralibs="-lossaudio"
1931         ;;
1932     freebsd|dragonfly)
1933         enable malloc_aligned
1934         ;;
1935     bsd/os)
1936         osextralibs="-lpoll -lgnugetopt"
1937         strip="strip -d"
1938         ;;
1939     darwin)
1940         enable malloc_aligned
1941         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1942         strip="strip -x"
1943         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1944         SLIBSUF=".dylib"
1945         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1946         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1947         FFSERVERLDFLAGS=-Wl,-bind_at_load
1948         objformat="macho"
1949         enabled x86_64 && objformat="macho64"
1950         enabled_any pic shared ||
1951             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
1952         ;;
1953     mingw32*)
1954         if test $target_os = "mingw32ce"; then
1955             disable network
1956         else
1957             target_os=mingw32
1958         fi
1959         LIBTARGET=i386
1960         if enabled x86_64; then
1961             enable malloc_aligned
1962             LIBTARGET=x64
1963         elif enabled arm; then
1964             LIBTARGET=arm
1965         fi
1966         shlibdir_default="$bindir_default"
1967         disable ffserver
1968         SLIBPREF=""
1969         SLIBSUF=".dll"
1970         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1971         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1972         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1973         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1974             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
1975             install -d "$(LIBDIR)"; \
1976             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
1977         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1978         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1979         objformat="win32"
1980         enable dos_paths
1981         check_cflags -fno-common
1982         if ! enabled x86_64; then
1983             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1984                 die "ERROR: MinGW runtime version must be >= 3.15."
1985             enabled_any avisynth vfwcap_indev &&
1986                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1987                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
1988             fi
1989         ;;
1990     cygwin*)
1991         target_os=cygwin
1992         shlibdir_default="$bindir_default"
1993         SLIBPREF="cyg"
1994         SLIBSUF=".dll"
1995         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1996         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1997         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1998         objformat="win32"
1999         enable dos_paths
2000         check_cflags -fno-common
2001         ;;
2002     *-dos|freedos|opendos)
2003         disable ffplay ffserver
2004         disable $INDEV_LIST $OUTDEV_LIST
2005         network_extralibs="-lsocket"
2006         objformat="coff"
2007         enable dos_paths
2008         ;;
2009     linux)
2010         enable dv1394
2011         ;;
2012     irix*)
2013         target_os=irix
2014         ranlib="echo ignoring ranlib"
2015         ;;
2016     os/2*)
2017         strip="lxlite"
2018         ln_s="cp -f"
2019         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2020         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2021         FFSERVERLDFLAGS=""
2022         LIBSUF="_s.a"
2023         SLIBPREF=""
2024         SLIBSUF=".dll"
2025         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2026         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2027         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2028           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2029           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2030           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2031           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2032           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2033         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2034           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2035         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2036         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2037         enable dos_paths
2038         ;;
2039     gnu/kfreebsd)
2040         ;;
2041     gnu)
2042         ;;
2043
2044     *)
2045         die "Unknown OS '$target_os'."
2046         ;;
2047 esac
2048
2049 set_default $PATHS_LIST
2050
2051 add_extralibs $osextralibs
2052
2053 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2054 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2055
2056 # we need to build at least one lib type
2057 if ! enabled_any static shared; then
2058     cat <<EOF
2059 At least one library type must be built.
2060 Specify --enable-static to build the static libraries or --enable-shared to
2061 build the shared libraries as well. To only build the shared libraries specify
2062 --disable-static in addition to --enable-shared.
2063 EOF
2064     exit 1;
2065 fi
2066
2067 disabled static && LIBNAME=""
2068
2069 if enabled_any libfaad libfaadbin ; then
2070     if check_header faad.h; then
2071         check_cc <<EOF
2072 #include <faad.h>
2073 #ifndef FAAD2_VERSION
2074 ok faad1
2075 #endif
2076 int main(void) { return 0; }
2077 EOF
2078         test $? = 0 && enable libfaad2
2079     else
2080         die "FAAD test failed."
2081     fi
2082 fi
2083
2084
2085 die_license_disabled() {
2086     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2087 }
2088
2089 die_license_disabled gpl libfaad2
2090 die_license_disabled gpl libx264
2091 die_license_disabled gpl libxvid
2092 die_license_disabled gpl postproc
2093 die_license_disabled gpl x11grab
2094
2095 die_license_disabled nonfree libfaac
2096
2097 die_license_disabled version3 libopencore_amrnb
2098 die_license_disabled version3 libopencore_amrwb
2099
2100 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2101
2102 check_deps $ARCH_EXT_LIST
2103
2104 disabled optimizations || check_cflags -fomit-frame-pointer
2105
2106 enable_pic() {
2107     enable pic
2108     add_cppflags -DPIC
2109     add_cflags   -fPIC
2110     add_asflags  -fPIC
2111 }
2112
2113 enabled pic && enable_pic
2114
2115 check_cc <<EOF || die "Symbol mangling check failed."
2116 int ff_extern;
2117 EOF
2118 sym=$($nm -P -g $TMPO | grep ff_extern)
2119 extern_prefix=${sym%%ff_extern*}
2120
2121 check_cc <<EOF && enable inline_asm
2122 void foo(void) { __asm__ volatile ("" ::); }
2123 EOF
2124
2125 _restrict=
2126 for restrict_keyword in restrict __restrict__ __restrict; do
2127     check_cc <<EOF && _restrict=$restrict_keyword && break
2128 void foo(char * $restrict_keyword p);
2129 EOF
2130 done
2131
2132 check_cc <<EOF && enable attribute_packed
2133 struct { int x; } __attribute__((packed)) x;
2134 EOF
2135
2136 check_cc <<EOF || die "endian test failed"
2137 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2138 EOF
2139 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2140
2141 if enabled arm; then
2142
2143     check_cflags -marm
2144
2145     check_ld <<EOF && enable vfp_args
2146 __asm__ (".eabi_attribute 28, 1");
2147 int main(void) { return 0; }
2148 EOF
2149
2150     # We have to check if pld is a nop and disable it.
2151     check_asm pld '"pld [r0]"'
2152
2153     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2154     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2155     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2156     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2157     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2158     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2159
2160     enabled_all armv6t2 shared !pic && enable_pic
2161
2162 elif enabled mips; then
2163
2164     check_asm loongson '"dmult.g $1, $2, $3"'
2165     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2166
2167 elif enabled ppc; then
2168
2169     check_asm dcbzl     '"dcbzl 0, 1"'
2170     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2171     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2172
2173     # AltiVec flags: The FSF version of GCC differs from the Apple version
2174     if enabled altivec; then
2175         check_cflags -maltivec -mabi=altivec &&
2176         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2177         check_cflags -faltivec
2178
2179         # check if our compiler supports Motorola AltiVec C API
2180         check_cc <<EOF || disable altivec
2181 $inc_altivec_h
2182 int main(void) {
2183     vector signed int v1, v2, v3;
2184     v1 = vec_add(v2,v3);
2185     return 0;
2186 }
2187 EOF
2188
2189         # check if our compiler supports braces for vector declarations
2190         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2191 $inc_altivec_h
2192 int main (void) { (vector int) {1}; return 0; }
2193 EOF
2194     fi
2195
2196 elif enabled sparc; then
2197
2198     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2199         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2200
2201 elif enabled x86; then
2202
2203     # check whether EBP is available on x86
2204     # As 'i' is stored on the stack, this program will crash
2205     # if the base pointer is used to access it because the
2206     # base pointer is cleared in the inline assembly code.
2207     check_exec_crash <<EOF && enable ebp_available
2208     volatile int i=0;
2209     __asm__ volatile (
2210         "xorl %%ebp, %%ebp"
2211     ::: "%ebp");
2212     return i;
2213 EOF
2214
2215     # check whether EBX is available on x86
2216     check_asm ebx_available '""::"b"(0)' &&
2217         check_asm ebx_available '"":::"%ebx"'
2218
2219     # check whether more than 10 operands are supported
2220     check_cc <<EOF && enable ten_operands
2221 int main(void) {
2222     int x=0;
2223     __asm__ volatile(
2224         ""
2225         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2226     );
2227     return 0;
2228 }
2229 EOF
2230
2231     # check whether binutils is new enough to compile SSSE3/MMX2
2232     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2233     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2234
2235     check_asm bswap '"bswap %%eax" ::: "%eax"'
2236
2237     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2238     enabled     x86_64        && append YASMFLAGS "-m amd64"
2239     enabled     pic           && append YASMFLAGS "-DPIC"
2240     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2241     case "$objformat" in
2242         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2243     esac
2244     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2245
2246 fi
2247
2248 if check_func dlopen; then
2249     ldl=
2250 elif check_func dlopen -ldl; then
2251     ldl=-ldl
2252 fi
2253
2254 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2255 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2256
2257 check_func  fork
2258 check_func  gethrtime
2259 check_func  getrusage
2260 check_func  inet_aton $network_extralibs
2261 check_func  isatty
2262 check_func  memalign
2263 check_func  mkstemp
2264 check_func  posix_memalign
2265 check_func_headers io.h setmode
2266 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2267 check_func_headers windows.h GetProcessTimes
2268 check_func_headers windows.h VirtualAlloc
2269
2270 check_header conio.h
2271 check_header dlfcn.h
2272 check_header malloc.h
2273 check_header poll.h
2274 check_header sys/mman.h
2275 check_header sys/resource.h
2276 check_header sys/select.h
2277 check_header termios.h
2278 check_header vdpau/vdpau.h
2279 check_header vdpau/vdpau_x11.h
2280 check_header X11/extensions/XvMClib.h
2281
2282 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2283      enabled_any $need_memalign ; then
2284     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2285 fi
2286
2287 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2288 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2289
2290 # check for some common methods of building with pthread support
2291 # do this before the optional library checks as some of them require pthreads
2292 if enabled pthreads; then
2293     if check_func pthread_create; then
2294         :
2295     elif check_func pthread_create -pthread; then
2296         add_cflags -pthread
2297         add_extralibs -pthread
2298     elif check_func pthread_create -pthreads; then
2299         add_cflags -pthreads
2300         add_extralibs -pthreads
2301     elif check_func pthread_create -lpthreadGC2; then
2302         add_extralibs -lpthreadGC2
2303     elif ! check_lib pthread.h pthread_create -lpthread; then
2304         die "ERROR: can't find pthreads library"
2305     fi
2306 fi
2307
2308 for thread in $THREADS_LIST; do
2309     if enabled $thread; then
2310         test -n "$thread_type" &&
2311             die "ERROR: Only one thread type must be selected." ||
2312             thread_type="$thread"
2313     fi
2314 done
2315
2316 check_lib math.h sin -lm
2317 check_lib va/va.h vaInitialize -lva
2318
2319 check_func llrint
2320 check_func log2
2321 check_func lrint
2322 check_func lrintf
2323 check_func round
2324 check_func roundf
2325 check_func truncf
2326
2327 # these are off by default, so fail if requested and not available
2328 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2329 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2330                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2331                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2332 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2333 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2334 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2335 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2336 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2337 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2338 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2339 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2340 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2341                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2342 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2343 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2344 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2345 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2346                       { check_cpp_condition x264.h "X264_BUILD >= 78" ||
2347                         die "ERROR: libx264 version must be >= 0.78."; }
2348 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2349 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2350
2351 # libdc1394 check
2352 if enabled libdc1394; then
2353     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2354         enable libdc1394_2; } ||
2355     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2356         enable libdc1394_1; } ||
2357     die "ERROR: No version of libdc1394 found "
2358 fi
2359
2360 disable sdl_too_old
2361 disable sdl
2362 SDL_CONFIG="${cross_prefix}sdl-config"
2363 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2364     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2365     sdl_libs=$("${SDL_CONFIG}" --libs)
2366     temp_cflags $sdl_cflags
2367     temp_extralibs $sdl_libs
2368     if check_lib2 SDL.h SDL_Init; then
2369         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2370         if test "$_sdlversion" -lt 121 ; then
2371             enable sdl_too_old
2372         else
2373             enable sdl
2374             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2375 #include <SDL.h>
2376 int main(int argc, char **argv){
2377     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2378     int w = vi->current_w;
2379     return 0;
2380 }
2381 EOF
2382         fi
2383     fi
2384     restore_flags
2385 fi
2386
2387 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2388
2389 if enabled network; then
2390     check_type "sys/types.h sys/socket.h" socklen_t
2391     # Prefer arpa/inet.h over winsock2
2392     if check_header arpa/inet.h ; then
2393         check_func closesocket
2394     elif check_header winsock2.h ; then
2395         check_func_headers winsock2.h closesocket -lws2 && \
2396             network_extralibs="-lws2" || \
2397         { check_func_headers winsock2.h closesocket -lws2_32 && \
2398             network_extralibs="-lws2_32"; }
2399         check_type ws2tcpip.h socklen_t
2400     else
2401         disable network
2402     fi
2403 fi
2404
2405 enabled_all network ipv6 && check_ld <<EOF || disable ipv6
2406 #include <sys/types.h>
2407 #include <sys/socket.h>
2408 #include <netinet/in.h>
2409 #include <netdb.h>
2410 int main(void) {
2411     struct sockaddr_storage saddr;
2412     struct ipv6_mreq mreq6;
2413     getaddrinfo(0,0,0,0);
2414     getnameinfo(0,0,0,0,0,0,0);
2415     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2416 }
2417 EOF
2418
2419 check_header linux/videodev.h
2420 check_header linux/videodev2.h
2421 check_header sys/videoio.h
2422
2423 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2424
2425 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2426 { check_header dev/bktr/ioctl_meteor.h &&
2427   check_header dev/bktr/ioctl_bt848.h; } ||
2428 { check_header machine/ioctl_meteor.h &&
2429   check_header machine/ioctl_bt848.h; } ||
2430 { check_header dev/video/meteor/ioctl_meteor.h &&
2431   check_header dev/video/bktr/ioctl_bt848.h; } ||
2432 check_header dev/ic/bt8xx.h
2433
2434 check_header sys/soundcard.h
2435 check_header soundcard.h
2436
2437 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2438
2439 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2440
2441 enabled x11grab                         &&
2442 check_header X11/Xlib.h                 &&
2443 check_header X11/extensions/XShm.h      &&
2444 check_func XOpenDisplay -lX11           &&
2445 check_func XShmCreateImage -lX11 -lXext
2446
2447 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2448
2449 # add some useful compiler flags if supported
2450 check_cflags -Wdeclaration-after-statement
2451 check_cflags -Wall
2452 check_cflags -Wno-switch
2453 check_cflags -Wdisabled-optimization
2454 check_cflags -Wpointer-arith
2455 check_cflags -Wredundant-decls
2456 check_cflags -Wno-pointer-sign
2457 check_cflags -Wcast-qual
2458 check_cflags -Wwrite-strings
2459 check_cflags -Wtype-limits
2460 check_cflags -Wundef
2461 enabled extra_warnings && check_cflags -Winline
2462
2463 # add some linker flags
2464 check_ldflags -Wl,--warn-common
2465 check_ldflags -Wl,--as-needed
2466 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2467 check_ldflags -Wl,-Bsymbolic
2468
2469 if enabled small; then
2470     check_cflags -Os            # not all compilers support -Os
2471     optimizations="small"
2472 elif enabled optimizations; then
2473     if enabled xlc; then
2474         add_cflags  -O5
2475         add_ldflags -O5
2476     elif enabled ccc; then
2477         add_cflags -fast
2478     else
2479         add_cflags -O3
2480     fi
2481 fi
2482 check_cflags -fno-math-errno
2483 check_cflags -fno-signed-zeros
2484
2485 if enabled icc; then
2486     # Just warnings, no remarks
2487     check_cflags -w1
2488     # -wd: Disable following warnings
2489     # 144, 167, 556: -Wno-pointer-sign
2490     # 10006: ignoring unknown option -fno-signed-zeros
2491     # 10156: ignoring option '-W'; no argument required
2492     check_cflags -wd144,167,556,10006,10156
2493     # 11030: Warning unknown option --as-needed
2494     # 10156: ignoring option '-export'; no argument required
2495     check_ldflags -wd10156,11030
2496     # Allow to compile with optimizations
2497     check_ldflags -march=$cpu
2498     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2499     enable ebp_available
2500 elif enabled ccc; then
2501     # disable some annoying warnings
2502     add_cflags -msg_disable cvtu32to64
2503     add_cflags -msg_disable embedcomment
2504     add_cflags -msg_disable needconstext
2505     add_cflags -msg_disable nomainieee
2506     add_cflags -msg_disable ptrmismatch1
2507     add_cflags -msg_disable unreachcode
2508 elif enabled gcc; then
2509     check_cflags -fno-tree-vectorize
2510 elif enabled clang; then
2511     check_cflags -Qunused-arguments
2512 fi
2513
2514 if enabled gprof; then
2515     add_cflags  -p
2516     add_ldflags -p
2517 fi
2518
2519 # Find out if the .align argument is a power of two or not.
2520 check_asm asmalign_pot '".align 3"'
2521
2522 enabled_any $DECODER_LIST      && enable decoders
2523 enabled_any $ENCODER_LIST      && enable encoders
2524 enabled_any $HWACCEL_LIST      && enable hwaccels
2525 enabled_any $BSF_LIST          && enable bsfs
2526 enabled_any $DEMUXER_LIST      && enable demuxers
2527 enabled_any $MUXER_LIST        && enable muxers
2528 enabled_any $FILTER_LIST       && enable filters
2529 enabled_any $INDEV_LIST        && enable indevs
2530 enabled_any $OUTDEV_LIST       && enable outdevs
2531 enabled_any $PROTOCOL_LIST     && enable protocols
2532
2533 enabled_any $THREADS_LIST      && enable threads
2534
2535 check_deps $CONFIG_LIST       \
2536            $CONFIG_EXTRA      \
2537            $HAVE_LIST         \
2538            $DECODER_LIST      \
2539            $ENCODER_LIST      \
2540            $HWACCEL_LIST      \
2541            $PARSER_LIST       \
2542            $BSF_LIST          \
2543            $DEMUXER_LIST      \
2544            $MUXER_LIST        \
2545            $FILTER_LIST       \
2546            $INDEV_LIST        \
2547            $OUTDEV_LIST       \
2548            $PROTOCOL_LIST     \
2549
2550 echo "install prefix            $prefix"
2551 echo "source path               $source_path"
2552 echo "C compiler                $cc"
2553 echo ".align is power-of-two    $asmalign_pot"
2554 echo "ARCH                      $arch ($cpu)"
2555 if test "$build_suffix" != ""; then
2556     echo "build suffix              $build_suffix"
2557 fi
2558 if test "$extra_version" != ""; then
2559     echo "version string suffix     $extra_version"
2560 fi
2561 echo "big-endian                ${bigendian-no}"
2562 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2563 if enabled x86; then
2564     echo "yasm                      ${yasm-no}"
2565     echo "MMX enabled               ${mmx-no}"
2566     echo "MMX2 enabled              ${mmx2-no}"
2567     echo "3DNow! enabled            ${amd3dnow-no}"
2568     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2569     echo "SSE enabled               ${sse-no}"
2570     echo "SSSE3 enabled             ${ssse3-no}"
2571     echo "CMOV enabled              ${cmov-no}"
2572     echo "CMOV is fast              ${fast_cmov-no}"
2573     echo "EBX available             ${ebx_available-no}"
2574     echo "EBP available             ${ebp_available-no}"
2575     echo "10 operands supported     ${ten_operands-no}"
2576 fi
2577 if enabled arm; then
2578     echo "ARMv5TE enabled           ${armv5te-no}"
2579     echo "ARMv6 enabled             ${armv6-no}"
2580     echo "ARMv6T2 enabled           ${armv6t2-no}"
2581     echo "ARM VFP enabled           ${armvfp-no}"
2582     echo "IWMMXT enabled            ${iwmmxt-no}"
2583     echo "NEON enabled              ${neon-no}"
2584 fi
2585 if enabled mips; then
2586     echo "MMI enabled               ${mmi-no}"
2587 fi
2588 if enabled ppc; then
2589     echo "AltiVec enabled           ${altivec-no}"
2590     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2591     echo "dcbzl available           ${dcbzl-no}"
2592     echo "performance report        ${powerpc_perf-no}"
2593 fi
2594 if enabled sparc; then
2595     echo "VIS enabled               ${vis-no}"
2596 fi
2597 echo "gprof enabled             ${gprof-no}"
2598 echo "debug symbols             ${debug-no}"
2599 echo "strip symbols             ${stripping-no}"
2600 echo "optimizations             ${optimizations-no}"
2601 echo "static                    ${static-no}"
2602 echo "shared                    ${shared-no}"
2603 echo "postprocessing support    ${postproc-no}"
2604 echo "new filter support        ${avfilter-no}"
2605 echo "filters using lavformat   ${avfilter_lavf-no}"
2606 echo "network support           ${network-no}"
2607 if enabled network; then
2608     echo "IPv6 support              ${ipv6-no}"
2609 fi
2610 echo "threading support         ${thread_type-no}"
2611 echo "SDL support               ${sdl-no}"
2612 if enabled sdl_too_old; then
2613     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2614 fi
2615 echo "Sun medialib support      ${mlib-no}"
2616 echo "AVISynth enabled          ${avisynth-no}"
2617 echo "libdc1394 support         ${libdc1394-no}"
2618 echo "libdirac enabled          ${libdirac-no}"
2619 echo "libfaac enabled           ${libfaac-no}"
2620 echo "libfaad enabled           ${libfaad-no}"
2621 echo "libfaad dlopened          ${libfaadbin-no}"
2622 echo "libgsm enabled            ${libgsm-no}"
2623 echo "libmp3lame enabled        ${libmp3lame-no}"
2624 echo "libnut enabled            ${libnut-no}"
2625 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2626 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2627 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2628 echo "libschroedinger enabled   ${libschroedinger-no}"
2629 echo "libspeex enabled          ${libspeex-no}"
2630 echo "libtheora enabled         ${libtheora-no}"
2631 echo "libvorbis enabled         ${libvorbis-no}"
2632 echo "libx264 enabled           ${libx264-no}"
2633 echo "libxvid enabled           ${libxvid-no}"
2634 echo "zlib enabled              ${zlib-no}"
2635 echo "bzlib enabled             ${bzlib-no}"
2636 echo
2637
2638 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2639     echo "Enabled ${type}s:"
2640     eval list=\$$(toupper $type)_LIST
2641     for part in $list; do
2642         enabled $part && echo ${part%_*}
2643     done | sort | pr -3 -t
2644     echo
2645 done
2646
2647 license="LGPL version 2.1 or later"
2648 if enabled nonfree; then
2649     license="nonfree and unredistributable"
2650 elif enabled gplv3; then
2651     license="GPL version 3 or later"
2652 elif enabled lgplv3; then
2653     license="LGPL version 3 or later"
2654 elif enabled gpl; then
2655     license="GPL version 2 or later"
2656 fi
2657
2658 echo "License: $license"
2659
2660 echo "Creating config.mak and config.h..."
2661
2662 enabled stripping || strip="echo skipping strip"
2663
2664 cat > config.mak <<EOF
2665 # Automatically generated by configure - do not modify!
2666 ifndef FFMPEG_CONFIG_MAK
2667 FFMPEG_CONFIG_MAK=1
2668 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2669 prefix=$prefix
2670 LIBDIR=\$(DESTDIR)$libdir
2671 SHLIBDIR=\$(DESTDIR)$shlibdir
2672 INCDIR=\$(DESTDIR)$incdir
2673 BINDIR=\$(DESTDIR)$bindir
2674 DATADIR=\$(DESTDIR)$datadir
2675 MANDIR=\$(DESTDIR)$mandir
2676 SRC_PATH="$source_path"
2677 SRC_PATH_BARE=$source_path
2678 BUILD_ROOT="$PWD"
2679 ARCH=$arch
2680 CC=$cc
2681 AS=$as
2682 LD=$ld
2683 DEPCC=$dep_cc
2684 YASM=$yasmexe
2685 AR=$ar
2686 RANLIB=$ranlib
2687 LN_S=$ln_s
2688 STRIP=$strip
2689 CPPFLAGS=$CPPFLAGS
2690 CFLAGS=$CFLAGS
2691 ASFLAGS=$ASFLAGS
2692 CC_O=$CC_O
2693 LDFLAGS=$LDFLAGS
2694 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2695 SHFLAGS=$SHFLAGS
2696 YASMFLAGS=$YASMFLAGS
2697 BUILDSUF=$build_suffix
2698 FULLNAME=$FULLNAME
2699 LIBPREF=$LIBPREF
2700 LIBSUF=$LIBSUF
2701 LIBNAME=$LIBNAME
2702 SLIBPREF=$SLIBPREF
2703 SLIBSUF=$SLIBSUF
2704 EXESUF=$EXESUF
2705 EXTRA_VERSION=$extra_version
2706 DEPFLAGS=$DEPFLAGS
2707 CCDEP=$CCDEP
2708 ASDEP=$ASDEP
2709 CC_DEPFLAGS=$CC_DEPFLAGS
2710 AS_DEPFLAGS=$AS_DEPFLAGS
2711 HOSTCC=$host_cc
2712 HOSTCFLAGS=$host_cflags
2713 HOSTEXESUF=$HOSTEXESUF
2714 HOSTLDFLAGS=$host_ldflags
2715 HOSTLIBS=$host_libs
2716 TARGET_EXEC=$target_exec
2717 TARGET_PATH=$target_path
2718 SDL_LIBS=$sdl_libs
2719 SDL_CFLAGS=$sdl_cflags
2720 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
2721 EXTRALIBS=$extralibs
2722 EOF
2723
2724 get_version(){
2725     name=$1
2726     file=$source_path/$2
2727     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2728     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2729     lcname=$(tolower $name)
2730     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2731     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2732 }
2733
2734 get_version LIBSWSCALE  libswscale/swscale.h
2735 get_version LIBPOSTPROC libpostproc/postprocess.h
2736 get_version LIBAVCODEC  libavcodec/avcodec.h
2737 get_version LIBAVDEVICE libavdevice/avdevice.h
2738 get_version LIBAVFORMAT libavformat/avformat.h
2739 get_version LIBAVUTIL   libavutil/avutil.h
2740 get_version LIBAVFILTER libavfilter/avfilter.h
2741
2742 enabled shared && cat >> config.mak <<EOF
2743 LIBTARGET=${LIBTARGET}
2744 SLIBNAME=${SLIBNAME}
2745 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
2746 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
2747 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
2748 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
2749 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
2750 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
2751 EOF
2752
2753 enabled asmalign_pot || align_shift="1 <<"
2754
2755 cat > $TMPH <<EOF
2756 /* Automatically generated by configure - do not modify! */
2757 #ifndef FFMPEG_CONFIG_H
2758 #define FFMPEG_CONFIG_H
2759 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
2760 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
2761 #define CC_TYPE "$cc_type"
2762 #define CC_VERSION $cc_version
2763 #define restrict $_restrict
2764 #define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
2765 #define EXTERN_PREFIX "${extern_prefix}"
2766 #define EXTERN_ASM ${extern_prefix}
2767 EOF
2768
2769 if enabled small || disabled optimizations; then
2770     echo "#define av_always_inline"  >> $TMPH
2771 fi
2772
2773 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2774 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2775 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2776                                       $CONFIG_EXTRA      \
2777                                       $DECODER_LIST      \
2778                                       $ENCODER_LIST      \
2779                                       $HWACCEL_LIST      \
2780                                       $PARSER_LIST       \
2781                                       $BSF_LIST          \
2782                                       $DEMUXER_LIST      \
2783                                       $MUXER_LIST        \
2784                                       $FILTER_LIST       \
2785                                       $PROTOCOL_LIST     \
2786                                       $INDEV_LIST        \
2787                                       $OUTDEV_LIST       \
2788
2789 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2790 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
2791
2792 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2793 cmp -s $TMPH config.h &&
2794     echo "config.h is unchanged" ||
2795     mv -f $TMPH config.h
2796
2797 # build tree in object directory if source path is different from current one
2798 if enabled source_path_used; then
2799     DIRS="
2800         doc
2801         libavcodec
2802         libavcodec/$arch
2803         libavdevice
2804         libavfilter
2805         libavformat
2806         libavutil
2807         libavutil/$arch
2808         libpostproc
2809         libswscale
2810         libswscale/$arch
2811         tests
2812         tools
2813     "
2814     FILES="
2815         Makefile
2816         common.mak
2817         subdir.mak
2818         doc/texi2pod.pl
2819         libavcodec/Makefile
2820         libavdevice/Makefile
2821         libavfilter/Makefile
2822         libavformat/Makefile
2823         libavutil/Makefile
2824         libpostproc/Makefile
2825         libswscale/Makefile
2826     "
2827     for dir in $DIRS ; do
2828         mkdir -p $dir
2829     done
2830     for f in $FILES ; do
2831         $ln_s "$source_path/$f" $f
2832     done
2833 fi
2834
2835
2836 # build pkg-config files
2837
2838 pkgconfig_generate(){
2839 name=$1
2840 shortname=${name#lib}${build_suffix}
2841 comment=$2
2842 version=$3
2843 libs=$4
2844 requires=$5
2845 cat <<EOF > $name/$name.pc
2846 prefix=$prefix
2847 exec_prefix=\${prefix}
2848 libdir=$libdir
2849 includedir=$incdir
2850
2851 Name: $name
2852 Description: $comment
2853 Version: $version
2854 Requires: $(enabled shared || echo $requires)
2855 Requires.private: $(enabled shared && echo $requires)
2856 Conflicts:
2857 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
2858 Libs.private: $(enabled shared && echo $libs)
2859 Cflags: -I\${includedir}
2860 EOF
2861 cat <<EOF > $name/$name-uninstalled.pc
2862 prefix=
2863 exec_prefix=
2864 libdir=\${pcfiledir}
2865 includedir=${source_path}
2866
2867 Name: $name
2868 Description: $comment
2869 Version: $version
2870 Requires: $requires
2871 Conflicts:
2872 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2873 Cflags: -I\${includedir}
2874 EOF
2875 }
2876
2877 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2878 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2879 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2880 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2881 enabled avfilter &&
2882     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2883 enabled postproc &&
2884     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2885 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"