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.log]
  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-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avcore         disable libavcore build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable GPLed postprocessing support [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --disable-vaapi          disable VAAPI code
 112   --disable-vdpau          disable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 183                            native implementation exists [no]
 184   --enable-libvpx          enable VP8 support via libvpx [no]
 185   --enable-libx264         enable H.264 encoding via x264 [no]
 186   --enable-libxavs         enable AVS encoding via xavs [no]
 187   --enable-libxvid         enable Xvid encoding via xvidcore,
 188                            native MPEG-4/Xvid encoder exists [no]
 189   --enable-mlib            enable Sun medialib [no]
 190   --enable-zlib            enable zlib [autodetect]
 191
 192 Advanced options (experts only):
 193   --source-path=PATH       path to source code [$source_path]
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-armv5te        disable armv5te optimizations
 227   --disable-armv6          disable armv6 optimizations
 228   --disable-armv6t2        disable armv6t2 optimizations
 229   --disable-armvfp         disable ARM VFP optimizations
 230   --disable-iwmmxt         disable iwmmxt optimizations
 231   --disable-mmi            disable MMI optimizations
 232   --disable-neon           disable neon optimizations
 233   --disable-vis            disable VIS optimizations
 234   --disable-yasm           disable use of yasm assembler
 235   --enable-pic             build position-independent code
 236   --malloc-prefix=PFX      prefix malloc and related names with PFX
 237   --enable-sram            allow use of on-chip SRAM
 238
 239 Developer options (useful when working on FFmpeg itself):
 240   --disable-debug          disable debugging symbols
 241   --enable-debug=LEVEL     set the debug level [$debuglevel]
 242   --disable-optimizations  disable compiler optimizations
 243   --enable-extra-warnings  enable more compiler warnings
 244   --disable-stripping      disable stripping of executables and shared libraries
 245   --samples=PATH           location of test samples for FATE
 246
 247 NOTE: Object files are built at the place where configure is launched.
 248 EOF
 249   exit 0
 250 }
 251
 252 quotes='""'
 253
 254 log(){
 255     echo "$@" >> $logfile
 256 }
 257
 258 log_file(){
 259     log BEGIN $1
 260     pr -n -t $1 >> $logfile
 261     log END $1
 262 }
 263
 264 echolog(){
 265     log "$@"
 266     echo "$@"
 267 }
 268
 269 warn(){
 270     log "WARNING: $*"
 271     WARNINGS="${WARNINGS}WARNING: $*\n"
 272 }
 273
 274 die(){
 275     echolog "$@"
 276     cat <<EOF
 277
 278 If you think configure made a mistake, make sure you are using the latest
 279 version from SVN.  If the latest version fails, report the problem to the
 280 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 281 EOF
 282     if disabled logging; then
 283         cat <<EOF
 284 Rerun configure with logging enabled (do not use --disable-logging), and
 285 include the log this produces with your report.
 286 EOF
 287     else
 288 cat <<EOF
 289 Include the log file "$logfile" produced by configure as this will help
 290 solving the problem.
 291 EOF
 292     fi
 293     exit 1
 294 }
 295
 296 # Avoid locale weirdness, besides we really just want to translate ASCII.
 297 toupper(){
 298     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 299 }
 300
 301 tolower(){
 302     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 303 }
 304
 305 c_escape(){
 306     echo "$*" | sed 's/["\\]/\\\0/g'
 307 }
 308
 309 sh_quote(){
 310     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 311     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 312     echo "$v"
 313 }
 314
 315 filter(){
 316     pat=$1
 317     shift
 318     for v; do
 319         eval "case $v in $pat) echo $v ;; esac"
 320     done
 321 }
 322
 323 map(){
 324     m=$1
 325     shift
 326     for v; do eval $m; done
 327 }
 328
 329 set_all(){
 330     value=$1
 331     shift
 332     for var in $*; do
 333         eval $var=$value
 334     done
 335 }
 336
 337 set_weak(){
 338     value=$1
 339     shift
 340     for var; do
 341         eval : \${$var:=$value}
 342     done
 343 }
 344
 345 pushvar(){
 346     for var in $*; do
 347         eval level=\${${var}_level:=0}
 348         eval ${var}_${level}="\$$var"
 349         eval ${var}_level=$(($level+1))
 350     done
 351 }
 352
 353 popvar(){
 354     for var in $*; do
 355         eval level=\${${var}_level:-0}
 356         test $level = 0 && continue
 357         eval level=$(($level-1))
 358         eval $var="\${${var}_${level}}"
 359         eval ${var}_level=$level
 360         eval unset ${var}_${level}
 361     done
 362 }
 363
 364 enable(){
 365     set_all yes $*
 366 }
 367
 368 disable(){
 369     set_all no $*
 370 }
 371
 372 enable_weak(){
 373     set_weak yes $*
 374 }
 375
 376 disable_weak(){
 377     set_weak no $*
 378 }
 379
 380 enable_safe(){
 381     for var; do
 382         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 383     done
 384 }
 385
 386 disable_safe(){
 387     for var; do
 388         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 389     done
 390 }
 391
 392 do_enable_deep(){
 393     for var; do
 394         enabled $var && continue
 395         eval sel="\$${var}_select"
 396         eval sgs="\$${var}_suggest"
 397         pushvar var sgs
 398         enable_deep $sel
 399         popvar sgs
 400         enable_deep_weak $sgs
 401         popvar var
 402     done
 403 }
 404
 405 enable_deep(){
 406     do_enable_deep $*
 407     enable $*
 408 }
 409
 410 enable_deep_weak(){
 411     do_enable_deep $*
 412     enable_weak $*
 413 }
 414
 415 enabled(){
 416     test "${1#!}" = "$1" && op== || op=!=
 417     eval test "x\$${1#!}" $op "xyes"
 418 }
 419
 420 disabled(){
 421     test "${1#!}" = "$1" && op== || op=!=
 422     eval test "x\$${1#!}" $op "xno"
 423 }
 424
 425 enabled_all(){
 426     for opt; do
 427         enabled $opt || return 1
 428     done
 429 }
 430
 431 disabled_all(){
 432     for opt; do
 433         disabled $opt || return 1
 434     done
 435 }
 436
 437 enabled_any(){
 438     for opt; do
 439         enabled $opt && return 0
 440     done
 441 }
 442
 443 disabled_any(){
 444     for opt; do
 445         disabled $opt && return 0
 446     done
 447     return 1
 448 }
 449
 450 set_default(){
 451     for opt; do
 452         eval : \${$opt:=\$${opt}_default}
 453     done
 454 }
 455
 456 is_in(){
 457     value=$1
 458     shift
 459     for var in $*; do
 460         [ $var = $value ] && return 0
 461     done
 462     return 1
 463 }
 464
 465 check_deps(){
 466     for cfg; do
 467         cfg="${cfg#!}"
 468         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 469         disabled ${cfg}_checking && continue
 470         enable ${cfg}_checking
 471
 472         eval dep_all="\$${cfg}_deps"
 473         eval dep_any="\$${cfg}_deps_any"
 474         eval dep_sel="\$${cfg}_select"
 475         eval dep_sgs="\$${cfg}_suggest"
 476         eval dep_ifa="\$${cfg}_if"
 477         eval dep_ifn="\$${cfg}_if_any"
 478
 479         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 480         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 481         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 482
 483         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 484         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 485         enabled_all  $dep_all || disable $cfg
 486         enabled_any  $dep_any || disable $cfg
 487         disabled_any $dep_sel && disable $cfg
 488
 489         if enabled $cfg; then
 490             eval dep_extralibs="\$${cfg}_extralibs"
 491             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 492             enable_deep $dep_sel
 493             enable_deep_weak $dep_sgs
 494         fi
 495
 496         disable ${cfg}_checking
 497     done
 498 }
 499
 500 print_config_h(){
 501     enabled $1 && v=1 || v=0
 502     echo "#define $2 $v"
 503 }
 504
 505 print_config_mak(){
 506     enabled $1 && v= || v=!
 507     echo "$v$2=yes"
 508 }
 509
 510 print_config_asm(){
 511     enabled $1 && echo "%define $2"
 512 }
 513
 514 print_config(){
 515     pfx=$1
 516     files=$2
 517     shift 2
 518     for cfg; do
 519         ucname="$(toupper $cfg)"
 520         for f in $files; do
 521             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 522         done
 523     done
 524 }
 525
 526 print_enabled(){
 527     test "$1" = -n && end=" " && shift || end="\n"
 528     suf=$1
 529     shift
 530     for v; do
 531         enabled $v && printf "%s$end" ${v%$suf};
 532     done
 533 }
 534
 535 append(){
 536     var=$1
 537     shift
 538     eval "$var=\"\$$var $*\""
 539 }
 540
 541 prepend(){
 542     var=$1
 543     shift
 544     eval "$var=\"$* \$$var\""
 545 }
 546
 547 add_cppflags(){
 548     append CPPFLAGS $($filter_cppflags "$@")
 549 }
 550
 551 add_cflags(){
 552     append CFLAGS $($filter_cflags "$@")
 553 }
 554
 555 add_asflags(){
 556     append ASFLAGS $($filter_asflags "$@")
 557 }
 558
 559 add_ldflags(){
 560     append LDFLAGS "$@"
 561 }
 562
 563 add_extralibs(){
 564     prepend extralibs "$@"
 565 }
 566
 567 check_cmd(){
 568     log "$@"
 569     "$@" >> $logfile 2>&1
 570 }
 571
 572 check_cc(){
 573     log check_cc "$@"
 574     cat > $TMPC
 575     log_file $TMPC
 576     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 577 }
 578
 579 check_cpp(){
 580     log check_cpp "$@"
 581     cat > $TMPC
 582     log_file $TMPC
 583     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 584 }
 585
 586 check_as(){
 587     log check_as "$@"
 588     cat > $TMPC
 589     log_file $TMPC
 590     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 591 }
 592
 593 check_asm(){
 594     log check_asm "$@"
 595     name="$1"
 596     code="$2"
 597     shift 2
 598     disable $name
 599     check_as "$@" <<EOF && enable $name
 600 void foo(void){ __asm__ volatile($code); }
 601 EOF
 602 }
 603
 604 check_yasm(){
 605     log check_yasm "$@"
 606     echo "$1" > $TMPS
 607     log_file $TMPS
 608     shift 1
 609     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 610 }
 611
 612 check_ld(){
 613     log check_ld "$@"
 614     flags=''
 615     libs=''
 616     for f; do
 617         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 618     done
 619     check_cc $($filter_cflags $flags) || return
 620     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 621 }
 622
 623 check_cppflags(){
 624     log check_cppflags "$@"
 625     set -- $($filter_cppflags "$@")
 626     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 627 int x;
 628 EOF
 629 }
 630
 631 check_cflags(){
 632     log check_cflags "$@"
 633     set -- $($filter_cflags "$@")
 634     check_cc "$@" <<EOF && append CFLAGS "$@"
 635 int x;
 636 EOF
 637 }
 638
 639 test_ldflags(){
 640     log test_ldflags "$@"
 641     check_ld "$@" <<EOF
 642 int main(void){ return 0; }
 643 EOF
 644 }
 645
 646 check_ldflags(){
 647     log check_ldflags "$@"
 648     test_ldflags "$@" && add_ldflags "$@"
 649 }
 650
 651 check_header(){
 652     log check_header "$@"
 653     header=$1
 654     shift
 655     disable_safe $header
 656     check_cpp "$@" <<EOF && enable_safe $header
 657 #include <$header>
 658 int x;
 659 EOF
 660 }
 661
 662 check_func(){
 663     log check_func "$@"
 664     func=$1
 665     shift
 666     disable $func
 667     check_ld "$@" <<EOF && enable $func
 668 extern int $func();
 669 int main(void){ $func(); }
 670 EOF
 671 }
 672
 673 check_mathfunc(){
 674     log check_mathfunc "$@"
 675     func=$1
 676     shift
 677     disable $func
 678     check_ld "$@" <<EOF && enable $func
 679 #include <math.h>
 680 float foo(float f) { return $func(f); }
 681 int main(void){ return 0; }
 682 EOF
 683 }
 684
 685 check_func_headers(){
 686     log check_func_headers "$@"
 687     headers=$1
 688     func=$2
 689     shift 2
 690     disable $func
 691     incs=""
 692     for hdr in $headers; do
 693         incs="$incs
 694 #include <$hdr>"
 695     done
 696     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 697 $incs
 698 int main(int argc, char **argv){
 699     return (long) $func;
 700 }
 701 EOF
 702 }
 703
 704 check_cpp_condition(){
 705     log check_cpp_condition "$@"
 706     header=$1
 707     condition=$2
 708     shift 2
 709     check_cpp $($filter_cppflags "$@") <<EOF
 710 #include <$header>
 711 #if !($condition)
 712 #error "unsatisfied condition: $condition"
 713 #endif
 714 EOF
 715 }
 716
 717 check_lib(){
 718     log check_lib "$@"
 719     header="$1"
 720     func="$2"
 721     shift 2
 722     check_header $header && check_func $func "$@" && add_extralibs "$@"
 723 }
 724
 725 check_lib2(){
 726     log check_lib2 "$@"
 727     headers="$1"
 728     func="$2"
 729     shift 2
 730     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 731 }
 732
 733 check_exec(){
 734     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 735 }
 736
 737 check_exec_crash(){
 738     code=$(cat)
 739
 740     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 741     # are safe but may not be available everywhere.  Thus we use
 742     # raise(SIGTERM) instead.  The check is run in a subshell so we
 743     # can redirect the "Terminated" message from the shell.  SIGBUS
 744     # is not defined by standard C so it is used conditionally.
 745
 746     (check_exec "$@") >> $logfile 2>&1 <<EOF
 747 #include <signal.h>
 748 static void sighandler(int sig){
 749     raise(SIGTERM);
 750 }
 751 int main(void){
 752     signal(SIGILL, sighandler);
 753     signal(SIGFPE, sighandler);
 754     signal(SIGSEGV, sighandler);
 755 #ifdef SIGBUS
 756     signal(SIGBUS, sighandler);
 757 #endif
 758     { $code }
 759 }
 760 EOF
 761 }
 762
 763 check_type(){
 764     log check_type "$@"
 765     headers=$1
 766     type=$2
 767     shift 2
 768     disable_safe "$type"
 769     incs=""
 770     for hdr in $headers; do
 771         incs="$incs
 772 #include <$hdr>"
 773     done
 774     check_cc "$@" <<EOF && enable_safe "$type"
 775 $incs
 776 $type v;
 777 EOF
 778 }
 779
 780 check_struct(){
 781     log check_type "$@"
 782     headers=$1
 783     struct=$2
 784     member=$3
 785     shift 3
 786     disable_safe "${struct}_${member}"
 787     incs=""
 788     for hdr in $headers; do
 789         incs="$incs
 790 #include <$hdr>"
 791     done
 792     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 793 $incs
 794 const void *p = &(($struct *)0)->$member;
 795 EOF
 796 }
 797
 798 require(){
 799     name="$1"
 800     header="$2"
 801     func="$3"
 802     shift 3
 803     check_lib $header $func "$@" || die "ERROR: $name not found"
 804 }
 805
 806 require2(){
 807     name="$1"
 808     headers="$2"
 809     func="$3"
 810     shift 3
 811     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 812 }
 813
 814 check_host_cc(){
 815     log check_host_cc "$@"
 816     cat > $TMPC
 817     log_file $TMPC
 818     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 819 }
 820
 821 check_host_cflags(){
 822     log check_host_cflags "$@"
 823     check_host_cc "$@" <<EOF && append host_cflags "$@"
 824 int x;
 825 EOF
 826 }
 827
 828 apply(){
 829     file=$1
 830     shift
 831     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 832 }
 833
 834 cp_if_changed(){
 835     cmp -s "$1" "$2" &&
 836         echo "$2 is unchanged" ||
 837         cp -f "$1" "$2"
 838 }
 839
 840 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 841 # system-dependent things.
 842
 843 COMPONENT_LIST="
 844     bsfs
 845     decoders
 846     demuxers
 847     encoders
 848     filters
 849     hwaccels
 850     indevs
 851     muxers
 852     outdevs
 853     parsers
 854     protocols
 855 "
 856
 857 CONFIG_LIST="
 858     $COMPONENT_LIST
 859     aandct
 860     avcodec
 861     avcore
 862     avdevice
 863     avfilter
 864     avformat
 865     avisynth
 866     bzlib
 867     dct
 868     doc
 869     dwt
 870     dxva2
 871     fastdiv
 872     ffmpeg
 873     ffplay
 874     ffprobe
 875     ffserver
 876     fft
 877     frei0r
 878     golomb
 879     gpl
 880     gray
 881     h264dsp
 882     h264pred
 883     hardcoded_tables
 884     huffman
 885     libdc1394
 886     libdirac
 887     libfaac
 888     libgsm
 889     libmp3lame
 890     libnut
 891     libopencore_amrnb
 892     libopencore_amrwb
 893     libopencv
 894     libopenjpeg
 895     librtmp
 896     libschroedinger
 897     libspeex
 898     libtheora
 899     libvorbis
 900     libvpx
 901     libx264
 902     libxavs
 903     libxvid
 904     lpc
 905     lsp
 906     mdct
 907     memalign_hack
 908     mlib
 909     mpegaudio_hp
 910     network
 911     nonfree
 912     pic
 913     postproc
 914     rdft
 915     rtpdec
 916     runtime_cpudetect
 917     shared
 918     small
 919     sram
 920     static
 921     swscale
 922     swscale_alpha
 923     vaapi
 924     vdpau
 925     version3
 926     x11grab
 927     zlib
 928 "
 929
 930 THREADS_LIST='
 931     pthreads
 932     w32threads
 933 '
 934
 935 ARCH_LIST='
 936     alpha
 937     arm
 938     avr32
 939     avr32_ap
 940     avr32_uc
 941     bfin
 942     ia64
 943     m68k
 944     mips
 945     mips64
 946     parisc
 947     ppc
 948     ppc64
 949     s390
 950     sh4
 951     sparc
 952     sparc64
 953     tomi
 954     x86
 955     x86_32
 956     x86_64
 957 '
 958
 959 ARCH_EXT_LIST='
 960     altivec
 961     amd3dnow
 962     amd3dnowext
 963     armv5te
 964     armv6
 965     armv6t2
 966     armvfp
 967     iwmmxt
 968     mmi
 969     mmx
 970     mmx2
 971     neon
 972     ppc4xx
 973     sse
 974     ssse3
 975     vis
 976 '
 977
 978 HAVE_LIST_PUB='
 979     bigendian
 980     fast_unaligned
 981 '
 982
 983 HAVE_LIST="
 984     $ARCH_EXT_LIST
 985     $HAVE_LIST_PUB
 986     $THREADS_LIST
 987     aligned_stack
 988     alsa_asoundlib_h
 989     altivec_h
 990     arpa_inet_h
 991     attribute_may_alias
 992     attribute_packed
 993     bswap
 994     closesocket
 995     cmov
 996     conio_h
 997     dcbzl
 998     dev_bktr_ioctl_bt848_h
 999     dev_bktr_ioctl_meteor_h
1000     dev_ic_bt8xx_h
1001     dev_video_meteor_ioctl_meteor_h
1002     dev_video_bktr_ioctl_bt848_h
1003     dlfcn_h
1004     dlopen
1005     dos_paths
1006     ebp_available
1007     ebx_available
1008     exp2
1009     exp2f
1010     fast_64bit
1011     fast_clz
1012     fast_cmov
1013     fcntl
1014     fork
1015     getaddrinfo
1016     gethrtime
1017     GetProcessMemoryInfo
1018     GetProcessTimes
1019     getrusage
1020     gnu_as
1021     struct_rusage_ru_maxrss
1022     ibm_asm
1023     inet_aton
1024     inline_asm
1025     isatty
1026     ldbrx
1027     libdc1394_1
1028     libdc1394_2
1029     llrint
1030     llrintf
1031     local_aligned_16
1032     local_aligned_8
1033     log2
1034     log2f
1035     loongson
1036     lrint
1037     lrintf
1038     lzo1x_999_compress
1039     machine_ioctl_bt848_h
1040     machine_ioctl_meteor_h
1041     malloc_h
1042     memalign
1043     mkstemp
1044     pld
1045     posix_memalign
1046     round
1047     roundf
1048     sdl
1049     sdl_video_size
1050     setmode
1051     socklen_t
1052     soundcard_h
1053     poll_h
1054     setrlimit
1055     strerror_r
1056     strtok_r
1057     struct_addrinfo
1058     struct_ipv6_mreq
1059     struct_sockaddr_in6
1060     struct_sockaddr_sa_len
1061     struct_sockaddr_storage
1062     symver
1063     symver_gnu_asm
1064     symver_asm_label
1065     sys_mman_h
1066     sys_resource_h
1067     sys_select_h
1068     sys_soundcard_h
1069     sys_videoio_h
1070     ten_operands
1071     termios_h
1072     threads
1073     truncf
1074     vfp_args
1075     VirtualAlloc
1076     winsock2_h
1077     xform_asm
1078     xmm_clobbers
1079     yasm
1080 "
1081
1082 # options emitted with CONFIG_ prefix but not available on command line
1083 CONFIG_EXTRA="
1084     avutil
1085     gplv3
1086     lgplv3
1087 "
1088
1089 CMDLINE_SELECT="
1090     $ARCH_EXT_LIST
1091     $CONFIG_LIST
1092     $THREADS_LIST
1093     asm
1094     cross_compile
1095     debug
1096     extra_warnings
1097     logging
1098     optimizations
1099     stripping
1100     yasm
1101 "
1102
1103 PATHS_LIST='
1104     bindir
1105     datadir
1106     incdir
1107     libdir
1108     mandir
1109     prefix
1110     shlibdir
1111 '
1112
1113 CMDLINE_SET="
1114     $PATHS_LIST
1115     ar
1116     arch
1117     as
1118     build_suffix
1119     cc
1120     cpu
1121     cross_prefix
1122     dep_cc
1123     extra_version
1124     host_cc
1125     host_cflags
1126     host_ldflags
1127     host_libs
1128     host_os
1129     ld
1130     logfile
1131     malloc_prefix
1132     nm
1133     samples
1134     source_path
1135     strip
1136     sysinclude
1137     sysroot
1138     target_exec
1139     target_os
1140     target_path
1141 "
1142
1143 CMDLINE_APPEND="
1144     extra_cflags
1145 "
1146
1147 # code dependency declarations
1148
1149 # architecture extensions
1150
1151 armv5te_deps="arm"
1152 armv6_deps="arm"
1153 armv6t2_deps="arm"
1154 armvfp_deps="arm"
1155 iwmmxt_deps="arm"
1156 neon_deps="arm"
1157
1158 mmi_deps="mips"
1159
1160 altivec_deps="ppc"
1161 ppc4xx_deps="ppc"
1162
1163 vis_deps="sparc"
1164
1165 x86_64_suggest="cmov fast_cmov"
1166 amd3dnow_deps="mmx"
1167 amd3dnowext_deps="amd3dnow"
1168 mmx_deps="x86"
1169 mmx2_deps="mmx"
1170 sse_deps="mmx"
1171 ssse3_deps="sse"
1172
1173 aligned_stack_if_any="ppc x86"
1174 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1175 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1176 fast_unaligned_if_any="armv6 ppc x86"
1177
1178 need_memalign="altivec neon sse"
1179 inline_asm_deps="!tms470"
1180
1181 symver_if_any="symver_asm_label symver_gnu_asm"
1182
1183 # subsystems
1184 dct_select="rdft"
1185 mdct_select="fft"
1186 rdft_select="fft"
1187
1188 # decoders / encoders / hardware accelerators
1189 aac_decoder_select="mdct rdft"
1190 aac_encoder_select="mdct"
1191 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1192 ac3_decoder_select="mdct ac3_parser"
1193 alac_encoder_select="lpc"
1194 amrnb_decoder_select="lsp"
1195 atrac1_decoder_select="mdct"
1196 atrac3_decoder_select="mdct"
1197 binkaudio_dct_decoder_select="mdct rdft dct"
1198 binkaudio_rdft_decoder_select="mdct rdft"
1199 cavs_decoder_select="golomb"
1200 cook_decoder_select="mdct"
1201 cscd_decoder_suggest="zlib"
1202 dca_decoder_select="mdct"
1203 dnxhd_encoder_select="aandct"
1204 dxa_decoder_select="zlib"
1205 eac3_decoder_select="ac3_decoder"
1206 eamad_decoder_select="aandct"
1207 eatgq_decoder_select="aandct"
1208 eatqi_decoder_select="aandct"
1209 ffv1_decoder_select="golomb"
1210 flac_decoder_select="golomb"
1211 flac_encoder_select="golomb lpc"
1212 flashsv_decoder_select="zlib"
1213 flashsv_encoder_select="zlib"
1214 flv_decoder_select="h263_decoder"
1215 flv_encoder_select="h263_encoder"
1216 fraps_decoder_select="huffman"
1217 h261_encoder_select="aandct"
1218 h263_decoder_select="h263_parser"
1219 h263_encoder_select="aandct"
1220 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1221 h263i_decoder_select="h263_decoder"
1222 h263p_encoder_select="h263_encoder"
1223 h264_decoder_select="golomb h264dsp h264pred"
1224 h264_dxva2_hwaccel_deps="dxva2api_h"
1225 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1226 h264_vaapi_hwaccel_select="vaapi"
1227 h264_vdpau_decoder_select="vdpau h264_decoder"
1228 imc_decoder_select="fft mdct"
1229 jpegls_decoder_select="golomb"
1230 jpegls_encoder_select="golomb"
1231 ljpeg_encoder_select="aandct"
1232 loco_decoder_select="golomb"
1233 mjpeg_encoder_select="aandct"
1234 mlp_decoder_select="mlp_parser"
1235 mp1float_decoder_select="dct"
1236 mp2float_decoder_select="dct"
1237 mp3adufloat_decoder_select="dct"
1238 mp3float_decoder_select="dct"
1239 mp3on4float_decoder_select="dct"
1240 mpeg1video_encoder_select="aandct"
1241 mpeg2video_encoder_select="aandct"
1242 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1243 mpeg4_encoder_select="h263_encoder"
1244 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1245 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1246 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1247 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1248 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1249 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1250 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1251 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1252 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1253 msmpeg4v1_decoder_select="h263_decoder"
1254 msmpeg4v1_encoder_select="h263_encoder"
1255 msmpeg4v2_decoder_select="h263_decoder"
1256 msmpeg4v2_encoder_select="h263_encoder"
1257 msmpeg4v3_decoder_select="h263_decoder"
1258 msmpeg4v3_encoder_select="h263_encoder"
1259 nellymoser_decoder_select="mdct"
1260 nellymoser_encoder_select="mdct"
1261 png_decoder_select="zlib"
1262 png_encoder_select="zlib"
1263 qcelp_decoder_select="lsp"
1264 qdm2_decoder_select="mdct rdft"
1265 ra_144_encoder_select="lpc"
1266 rv10_decoder_select="h263_decoder"
1267 rv10_encoder_select="h263_encoder"
1268 rv20_decoder_select="h263_decoder"
1269 rv20_encoder_select="h263_encoder"
1270 rv30_decoder_select="golomb h264pred"
1271 rv40_decoder_select="golomb h264pred"
1272 shorten_decoder_select="golomb"
1273 sipr_decoder_select="lsp"
1274 snow_decoder_select="dwt"
1275 snow_encoder_select="aandct dwt"
1276 sonic_decoder_select="golomb"
1277 sonic_encoder_select="golomb"
1278 sonic_ls_encoder_select="golomb"
1279 svq1_encoder_select="aandct"
1280 svq3_decoder_select="golomb h264dsp h264pred"
1281 svq3_decoder_suggest="zlib"
1282 theora_decoder_select="vp3_decoder"
1283 tiff_decoder_suggest="zlib"
1284 tiff_encoder_suggest="zlib"
1285 truehd_decoder_select="mlp_decoder"
1286 tscc_decoder_select="zlib"
1287 twinvq_decoder_select="mdct lsp"
1288 vc1_decoder_select="h263_decoder"
1289 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1290 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1291 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1292 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1293 vorbis_decoder_select="mdct"
1294 vorbis_encoder_select="mdct"
1295 vp6_decoder_select="huffman"
1296 vp6a_decoder_select="vp6_decoder"
1297 vp6f_decoder_select="vp6_decoder"
1298 vp8_decoder_select="h264pred"
1299 wmapro_decoder_select="mdct"
1300 wmav1_decoder_select="mdct"
1301 wmav1_encoder_select="mdct"
1302 wmav2_decoder_select="mdct"
1303 wmav2_encoder_select="mdct"
1304 wmavoice_decoder_select="lsp rdft dct mdct"
1305 wmv1_decoder_select="h263_decoder"
1306 wmv1_encoder_select="h263_encoder"
1307 wmv2_decoder_select="h263_decoder"
1308 wmv2_encoder_select="h263_encoder"
1309 wmv3_decoder_select="vc1_decoder"
1310 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1311 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1312 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1313 zlib_decoder_select="zlib"
1314 zlib_encoder_select="zlib"
1315 zmbv_decoder_select="zlib"
1316 zmbv_encoder_select="zlib"
1317
1318 vaapi_deps="va_va_h"
1319 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1320
1321 # parsers
1322 h264_parser_select="golomb h264dsp h264pred"
1323
1324 # external libraries
1325 libdirac_decoder_deps="libdirac !libschroedinger"
1326 libdirac_encoder_deps="libdirac"
1327 libfaac_encoder_deps="libfaac"
1328 libgsm_decoder_deps="libgsm"
1329 libgsm_encoder_deps="libgsm"
1330 libgsm_ms_decoder_deps="libgsm"
1331 libgsm_ms_encoder_deps="libgsm"
1332 libmp3lame_encoder_deps="libmp3lame"
1333 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1334 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1335 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1336 libopenjpeg_decoder_deps="libopenjpeg"
1337 libschroedinger_decoder_deps="libschroedinger"
1338 libschroedinger_encoder_deps="libschroedinger"
1339 libspeex_decoder_deps="libspeex"
1340 libtheora_encoder_deps="libtheora"
1341 libvorbis_encoder_deps="libvorbis"
1342 libvpx_decoder_deps="libvpx"
1343 libvpx_encoder_deps="libvpx"
1344 libx264_encoder_deps="libx264"
1345 libxavs_encoder_deps="libxavs"
1346 libxvid_encoder_deps="libxvid"
1347
1348 # demuxers / muxers
1349 ac3_demuxer_deps="ac3_parser"
1350 asf_stream_muxer_select="asf_muxer"
1351 avisynth_demuxer_deps="avisynth"
1352 dirac_demuxer_deps="dirac_parser"
1353 eac3_demuxer_select="ac3_parser"
1354 ipod_muxer_select="mov_muxer"
1355 libnut_demuxer_deps="libnut"
1356 libnut_muxer_deps="libnut"
1357 matroska_audio_muxer_select="matroska_muxer"
1358 matroska_demuxer_suggest="zlib bzlib"
1359 mov_demuxer_suggest="zlib"
1360 mp3_demuxer_deps="mpegaudio_parser"
1361 mp4_muxer_select="mov_muxer"
1362 mpegtsraw_demuxer_select="mpegts_demuxer"
1363 mxf_d10_muxer_select="mxf_muxer"
1364 ogg_demuxer_select="golomb"
1365 psp_muxer_select="mov_muxer"
1366 rtp_demuxer_select="sdp_demuxer"
1367 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1368 rtsp_demuxer_select="http_protocol rtpdec"
1369 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1370 sap_demuxer_select="sdp_demuxer"
1371 sap_muxer_select="rtp_muxer rtp_protocol"
1372 sdp_demuxer_select="rtpdec"
1373 spdif_muxer_select="aac_parser"
1374 tg2_muxer_select="mov_muxer"
1375 tgp_muxer_select="mov_muxer"
1376 w64_demuxer_deps="wav_demuxer"
1377
1378 # indevs / outdevs
1379 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1380 alsa_outdev_deps="alsa_asoundlib_h"
1381 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1382 dv1394_indev_deps="dv1394 dv_demuxer"
1383 jack_indev_deps="jack_jack_h"
1384 libdc1394_indev_deps="libdc1394"
1385 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1386 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1387 v4l_indev_deps="linux_videodev_h"
1388 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1389 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1390 vfwcap_indev_extralibs="-lavicap32"
1391 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1392 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1393
1394 # protocols
1395 gopher_protocol_deps="network"
1396 http_protocol_deps="network"
1397 http_protocol_select="tcp_protocol"
1398 mmsh_protocol_select="http_protocol"
1399 mmst_protocol_deps="network"
1400 rtmp_protocol_select="tcp_protocol"
1401 rtp_protocol_select="udp_protocol"
1402 tcp_protocol_deps="network"
1403 udp_protocol_deps="network"
1404
1405 # filters
1406 blackframe_filter_deps="gpl"
1407 cropdetect_filter_deps="gpl"
1408 frei0r_filter_deps="frei0r dlopen strtok_r"
1409 ocv_smooth_filter_deps="libopencv"
1410 yadif_filter_deps="gpl"
1411
1412 # libraries
1413 avdevice_deps="avcodec avformat"
1414 avformat_deps="avcodec"
1415
1416 # programs
1417 ffmpeg_deps="avcodec avformat swscale"
1418 ffmpeg_select="buffer_filter"
1419 ffplay_deps="avcodec avformat swscale sdl"
1420 ffplay_select="rdft"
1421 ffprobe_deps="avcodec avformat"
1422 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1423 ffserver_extralibs='$ldl'
1424
1425 doc_deps="texi2html"
1426
1427 # tests
1428
1429 test_deps(){
1430     suf1=$1
1431     suf2=$2
1432     shift 2
1433     for v; do
1434         dep=${v%=*}
1435         tests=${v#*=}
1436         for name in ${tests}; do
1437             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1438         done
1439     done
1440 }
1441
1442 set_ne_test_deps(){
1443     eval ${1}_be_test_deps="bigendian"
1444     eval ${1}_le_test_deps="!bigendian"
1445 }
1446
1447 test_deps _encoder _decoder                                             \
1448     ac3                                                                 \
1449     adpcm_g726=g726                                                     \
1450     adpcm_ima_qt                                                        \
1451     adpcm_ima_wav                                                       \
1452     adpcm_ms                                                            \
1453     adpcm_swf                                                           \
1454     adpcm_yamaha=adpcm_yam                                              \
1455     alac                                                                \
1456     asv1                                                                \
1457     asv2                                                                \
1458     bmp                                                                 \
1459     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1460     dvvideo="dv dv50"                                                   \
1461     ffv1                                                                \
1462     flac                                                                \
1463     flashsv                                                             \
1464     flv                                                                 \
1465     gif                                                                 \
1466     h261                                                                \
1467     h263="h263 h263p"                                                   \
1468     huffyuv                                                             \
1469     jpegls                                                              \
1470     mjpeg="jpg mjpeg ljpeg"                                             \
1471     mp2                                                                 \
1472     mpeg1video="mpeg mpeg1b"                                            \
1473     mpeg2video="mpeg2 mpeg2thread"                                      \
1474     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1475     msmpeg4v3=msmpeg4                                                   \
1476     msmpeg4v2                                                           \
1477     pbm=pbmpipe                                                         \
1478     pcx                                                                 \
1479     pgm="pgm pgmpipe"                                                   \
1480     ppm="ppm ppmpipe"                                                   \
1481     rawvideo="rgb yuv"                                                  \
1482     roq                                                                 \
1483     rv10                                                                \
1484     rv20                                                                \
1485     sgi                                                                 \
1486     snow="snow snowll"                                                  \
1487     svq1                                                                \
1488     targa=tga                                                           \
1489     tiff                                                                \
1490     wmav1                                                               \
1491     wmav2                                                               \
1492     wmv1                                                                \
1493     wmv2                                                                \
1494
1495 test_deps _muxer _demuxer                                               \
1496     aiff                                                                \
1497     pcm_alaw=alaw                                                       \
1498     asf                                                                 \
1499     au                                                                  \
1500     avi                                                                 \
1501     dv=dv_fmt                                                           \
1502     ffm                                                                 \
1503     flv=flv_fmt                                                         \
1504     gxf                                                                 \
1505     matroska=mkv                                                        \
1506     mmf                                                                 \
1507     mov                                                                 \
1508     pcm_mulaw=mulaw                                                     \
1509     mxf                                                                 \
1510     nut                                                                 \
1511     ogg                                                                 \
1512     rawvideo=pixfmt                                                     \
1513     rm                                                                  \
1514     swf                                                                 \
1515     mpegts=ts                                                           \
1516     voc                                                                 \
1517     wav                                                                 \
1518     yuv4mpegpipe=yuv4mpeg                                               \
1519
1520 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1521
1522 set_ne_test_deps pixdesc
1523 set_ne_test_deps pixfmts_crop
1524 set_ne_test_deps pixfmts_hflip
1525 set_ne_test_deps pixfmts_null
1526 set_ne_test_deps pixfmts_pad
1527 set_ne_test_deps pixfmts_scale
1528 set_ne_test_deps pixfmts_vflip
1529
1530 # default parameters
1531
1532 logfile="config.log"
1533
1534 # installation paths
1535 prefix_default="/usr/local"
1536 bindir_default='${prefix}/bin'
1537 datadir_default='${prefix}/share/ffmpeg'
1538 incdir_default='${prefix}/include'
1539 libdir_default='${prefix}/lib'
1540 mandir_default='${prefix}/share/man'
1541 shlibdir_default="$libdir_default"
1542
1543 # toolchain
1544 ar_default="ar"
1545 cc_default="gcc"
1546 cc_version=\"unknown\"
1547 host_cc_default="gcc"
1548 ln_s="ln -sf"
1549 nm_default="nm"
1550 objformat="elf"
1551 ranlib="ranlib"
1552 strip_default="strip"
1553 yasmexe="yasm"
1554 nogas=":"
1555
1556 nm_opts='-g'
1557
1558 # machine
1559 arch_default=$(uname -m)
1560 cpu="generic"
1561
1562 # OS
1563 target_os_default=$(tolower $(uname -s))
1564 host_os=$target_os_default
1565
1566 # configurable options
1567 enable avcodec
1568 enable avcore
1569 enable avdevice
1570 enable avfilter
1571 enable avformat
1572 enable avutil
1573 enable asm
1574 enable debug
1575 enable doc
1576 enable fastdiv
1577 enable ffmpeg
1578 enable ffplay
1579 enable ffprobe
1580 enable ffserver
1581 enable mpegaudio_hp
1582 enable network
1583 enable optimizations
1584 enable protocols
1585 enable static
1586 enable stripping
1587 enable swscale
1588 enable swscale_alpha
1589
1590 # build settings
1591 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1592 FFSERVERLDFLAGS=-Wl,-E
1593 LIBPREF="lib"
1594 LIBSUF=".a"
1595 FULLNAME='$(NAME)$(BUILDSUF)'
1596 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1597 SLIBPREF="lib"
1598 SLIBSUF=".so"
1599 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1600 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1601 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1602 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1603
1604 CC_O='-o $@'
1605
1606 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1607 host_libs='-lm'
1608
1609 target_path='$(CURDIR)'
1610
1611 # since the object filename is not given with the -MM flag, the compiler
1612 # is only able to print the basename, and we must add the path ourselves
1613 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1614 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1615
1616 # find source path
1617 source_path="$(dirname "$0")"
1618 enable source_path_used
1619 if test -f configure; then
1620     source_path="$(pwd)"
1621     disable source_path_used
1622 else
1623     source_path="$(cd "$source_path"; pwd)"
1624     echo "$source_path" | grep -q '[[:blank:]]' &&
1625         die "Out of tree builds are impossible with whitespace in source path."
1626     test -e "$source_path/config.h" &&
1627         die "Out of tree builds are impossible with config.h in source dir."
1628 fi
1629
1630 for v in "$@"; do
1631     r=${v#*=}
1632     l=${v%"$r"}
1633     r=$(sh_quote "$r")
1634     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1635 done
1636
1637 find_things(){
1638     thing=$1
1639     pattern=$2
1640     file=$source_path/$3
1641     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1642 }
1643
1644 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1645 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1646 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1647 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1648 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1649 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1650 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1651 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1652 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1653 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1654 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1655
1656 find_tests(){
1657     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1658 }
1659
1660 ACODEC_TESTS=$(find_tests acodec)
1661 VCODEC_TESTS=$(find_tests vsynth1)
1662 LAVF_TESTS=$(find_tests lavf)
1663 LAVFI_TESTS=$(find_tests lavfi)
1664 SEEK_TESTS=$(find_tests seek seek_)
1665
1666 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1667
1668 for n in $COMPONENT_LIST; do
1669     v=$(toupper ${n%s})_LIST
1670     eval enable \$$v
1671     eval ${n}_if_any="\$$v"
1672 done
1673
1674 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1675
1676 die_unknown(){
1677     echo "Unknown option \"$1\"."
1678     echo "See $0 --help for available options."
1679     exit 1
1680 }
1681
1682 show_list() {
1683     suffix=_$1
1684     shift
1685     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1686     exit 0
1687 }
1688
1689 for opt do
1690     optval="${opt#*=}"
1691     case "$opt" in
1692     --extra-ldflags=*) add_ldflags $optval
1693     ;;
1694     --extra-libs=*) add_extralibs $optval
1695     ;;
1696     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1697     ;;
1698     --enable-debug=*) debuglevel="$optval"
1699     ;;
1700     --disable-everything)
1701     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1702     ;;
1703     --enable-*=*|--disable-*=*)
1704     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1705     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1706     eval list=\$$(toupper $thing)_LIST
1707     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1708     $action $(filter "$name" $list)
1709     ;;
1710     --enable-?*|--disable-?*)
1711     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1712     if is_in $option $COMPONENT_LIST; then
1713         test $action = disable && action=unset
1714         eval $action \$$(toupper ${option%s})_LIST
1715     elif is_in $option $CMDLINE_SELECT; then
1716         $action $option
1717     else
1718         die_unknown $opt
1719     fi
1720     ;;
1721     --list-*)
1722         NAME="${opt#--list-}"
1723         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1724         NAME=${NAME%s}
1725         eval show_list $NAME \$$(toupper $NAME)_LIST
1726     ;;
1727     --help|-h) show_help
1728     ;;
1729     *)
1730     optname="${opt%%=*}"
1731     optname="${optname#--}"
1732     optname=$(echo "$optname" | sed 's/-/_/g')
1733     if is_in $optname $CMDLINE_SET; then
1734         eval $optname='$optval'
1735     elif is_in $optname $CMDLINE_APPEND; then
1736         append $optname "$optval"
1737     else
1738          die_unknown $opt
1739     fi
1740     ;;
1741     esac
1742 done
1743
1744 disabled logging && logfile=/dev/null
1745
1746 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1747 set >> $logfile
1748
1749 test -n "$cross_prefix" && enable cross_compile
1750
1751 if enabled cross_compile; then
1752     test -n "$arch" && test -n "$target_os" ||
1753         die "Must specify target arch and OS when cross-compiling"
1754 fi
1755
1756 set_default arch target_os
1757
1758 ar_default="${cross_prefix}${ar_default}"
1759 cc_default="${cross_prefix}${cc_default}"
1760 nm_default="${cross_prefix}${nm_default}"
1761 ranlib="${cross_prefix}${ranlib}"
1762 strip_default="${cross_prefix}${strip_default}"
1763
1764 sysinclude_default="${sysroot}/usr/include"
1765
1766 set_default cc nm strip sysinclude
1767 enabled cross_compile || host_cc_default=$cc
1768 set_default host_cc
1769
1770 exesuf() {
1771     case $1 in
1772         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1773     esac
1774 }
1775
1776 EXESUF=$(exesuf $target_os)
1777 HOSTEXESUF=$(exesuf $host_os)
1778
1779 # set temporary file name
1780 : ${TMPDIR:=$TEMPDIR}
1781 : ${TMPDIR:=$TMP}
1782 : ${TMPDIR:=/tmp}
1783
1784 if ! check_cmd type mktemp; then
1785     # simple replacement for missing mktemp
1786     # NOT SAFE FOR GENERAL USE
1787     mktemp(){
1788         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1789     }
1790 fi
1791
1792 tmpfile(){
1793     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1794         (set -C; exec > $tmp) 2>/dev/null ||
1795         die "Unable to create temporary file in $TMPDIR."
1796     append TMPFILES $tmp
1797     eval $1=$tmp
1798 }
1799
1800 trap 'rm -f -- $TMPFILES' EXIT
1801 trap exit HUP INT TERM
1802
1803 tmpfile TMPC  .c
1804 tmpfile TMPE  $EXESUF
1805 tmpfile TMPH  .h
1806 tmpfile TMPO  .o
1807 tmpfile TMPS  .S
1808 tmpfile TMPV  .ver
1809 tmpfile TMPSH .sh
1810 tmpfile TMPASM .asm
1811
1812 unset -f mktemp
1813
1814 # make sure we can execute files in $TMPDIR
1815 cat > $TMPSH 2>> $logfile <<EOF
1816 #! /bin/sh
1817 EOF
1818 chmod +x $TMPSH >> $logfile 2>&1
1819 if ! $TMPSH >> $logfile 2>&1; then
1820     cat <<EOF
1821 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1822 variable to another directory and make sure that it is not mounted noexec.
1823 EOF
1824     die "Sanity test failed."
1825 fi
1826
1827 filter_cflags=echo
1828 filter_cppflags=echo
1829 filter_asflags=echo
1830
1831 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1832     cc_type=llvm_gcc
1833     cc_version=__VERSION__
1834     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1835     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1836     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1837     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1838     speed_cflags='-O3'
1839     size_cflags='-Os'
1840 elif $cc -v 2>&1 | grep -qi ^gcc; then
1841     cc_type=gcc
1842     cc_version=__VERSION__
1843     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1844     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1845     if ! $cc -dumpversion | grep -q '^2\.'; then
1846         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1847         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1848     fi
1849     speed_cflags='-O3'
1850     size_cflags='-Os'
1851 elif $cc --version 2>/dev/null | grep -q Intel; then
1852     cc_type=icc
1853     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1854     cc_ident=$($cc --version | head -n1)
1855     icc_version=$($cc -dumpversion)
1856     CC_DEPFLAGS='-MMD'
1857     AS_DEPFLAGS='-MMD'
1858     speed_cflags='-O3'
1859     size_cflags='-Os'
1860     noopt_cflags='-O1'
1861 elif $cc -v 2>&1 | grep -q xlc; then
1862     cc_type=xlc
1863     cc_version="AV_STRINGIFY(__IBMC__)"
1864     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1865     speed_cflags='-O5'
1866     size_cflags='-O5 -qcompact'
1867 elif $cc -V 2>/dev/null | grep -q Compaq; then
1868     cc_type=ccc
1869     cc_version="AV_STRINGIFY(__DECC_VER)"
1870     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1871     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1872     debuglevel=3
1873     add_ldflags -Wl,-z,now # calls to libots crash without this
1874     speed_cflags='-fast'
1875     size_cflags='-O1'
1876 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1877     test -d "$sysroot" || die "No valid sysroot specified."
1878     cc_type=armcc
1879     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1880     cc_ident=$($cc --vsn | head -n1)
1881     armcc_conf="$PWD/armcc.conf"
1882     $cc --arm_linux_configure                 \
1883         --arm_linux_config_file="$armcc_conf" \
1884         --configure_sysroot="$sysroot"        \
1885         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1886         die "Error creating armcc configuration file."
1887     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1888     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1889     as_default="${cross_prefix}gcc"
1890     CC_DEPFLAGS='-MMD'
1891     AS_DEPFLAGS='-MMD'
1892     speed_cflags='-O3'
1893     size_cflags='-Os'
1894 elif $cc -version 2>/dev/null | grep -q TMS470; then
1895     cc_type=tms470
1896     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1897     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1898     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1899     CC_O='-fr=$(@D)'
1900     as_default="${cross_prefix}gcc"
1901     ld_default="${cross_prefix}gcc"
1902     TMPO=$(basename $TMPC .c).o
1903     append TMPFILES $TMPO
1904     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1905     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1906     AS_DEPFLAGS='-MMD'
1907     speed_cflags='-O3 -mf=5'
1908     size_cflags='-O3 -mf=2'
1909     filter_cflags=tms470_flags
1910     tms470_flags(){
1911         for flag; do
1912             case $flag in
1913                 -march=*|-mcpu=*)
1914                     case "${flag#*=}" in
1915                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1916                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1917                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1918                         armv6*|arm11*)          echo -mv=6   ;;
1919                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1920                                                 echo -mv=5e  ;;
1921                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1922                     esac
1923                     ;;
1924                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1925                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1926                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1927                 -msoft-float)   echo --float_support=vfplib       ;;
1928                 -O[0-3]|-mf=*)  echo $flag                        ;;
1929                 -g)             echo -g -mn                       ;;
1930                 -pds=*)         echo $flag                        ;;
1931             esac
1932         done
1933     }
1934 elif $cc -v 2>&1 | grep -q clang; then
1935     cc_type=clang
1936     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1937         cc_version=__clang_version__ || cc_version=__VERSION__
1938     cc_ident=$($cc --version | head -n1)
1939     CC_DEPFLAGS='-MMD'
1940     AS_DEPFLAGS='-MMD'
1941     speed_cflags='-O3'
1942     size_cflags='-Os'
1943 elif $cc -V 2>&1 | grep -q Sun; then
1944     cc_type=suncc
1945     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1946     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1947     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1948     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1949     speed_cflags='-O5'
1950     size_cflags='-O5 -xspace'
1951     filter_cflags=suncc_flags
1952     suncc_flags(){
1953         for flag; do
1954             case $flag in
1955                 -march=*|-mcpu=*)
1956                     case "${flag#*=}" in
1957                         native)                   echo -xtarget=native       ;;
1958                         v9|niagara)               echo -xarch=sparc          ;;
1959                         ultrasparc)               echo -xarch=sparcvis       ;;
1960                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1961                         i586|pentium)             echo -xchip=pentium        ;;
1962                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1963                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1964                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1965                         pentium4*)          echo -xtarget=pentium4           ;;
1966                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1967                         *-sse3)             echo -xarch=sse3                 ;;
1968                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1969                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1970                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1971                         k8|opteron|athlon64|athlon-fx)
1972                                                   echo -xarch=sse2a          ;;
1973                         athlon*)                  echo -xarch=pentium_proa   ;;
1974                     esac
1975                     ;;
1976                 -std=c99)             echo -xc99              ;;
1977                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1978                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1979                 -W*,*)                echo $flag              ;;
1980                 -f*-*|-W*)                                    ;;
1981                 *)                    echo $flag              ;;
1982             esac
1983         done
1984     }
1985 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1986     cc_type=pathscale
1987     cc_version=__PATHSCALE__
1988     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1989     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1990     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1991     speed_cflags='-O2'
1992     size_cflags='-Os'
1993 elif $cc -v 2>&1 | grep -q Open64; then
1994     cc_type=open64
1995     cc_version=__OPEN64__
1996     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1997     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1998     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1999     speed_cflags='-O2'
2000     size_cflags='-Os'
2001 fi
2002
2003 test -n "$cc_type" && enable $cc_type ||
2004     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2005
2006 : ${as_default:=$cc}
2007 : ${dep_cc_default:=$cc}
2008 : ${ld_default:=$cc}
2009 set_default ar as dep_cc ld
2010
2011 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2012 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2013
2014 add_cflags $extra_cflags
2015 add_asflags $extra_cflags
2016
2017 if test -n "$sysroot"; then
2018     case "$cc_type" in
2019         gcc|llvm_gcc)
2020             add_cppflags --sysroot="$sysroot"
2021             add_ldflags --sysroot="$sysroot"
2022         ;;
2023         tms470)
2024             add_cppflags -I"$sysinclude"
2025             add_ldflags  --sysroot="$sysroot"
2026         ;;
2027         clang)
2028             add_cppflags -isysroot "$sysroot"
2029             add_ldflags -isysroot "$sysroot"
2030         ;;
2031     esac
2032 fi
2033
2034 if test "$cpu" = host; then
2035     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2036
2037     case "$cc_type" in
2038         gcc|llvm_gcc)
2039             check_native(){
2040                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2041                 sed -n "/$1=/{
2042                             s/.*$1=\\([^ ]*\\).*/\\1/
2043                             p
2044                             q
2045                         }" $TMPE
2046             }
2047             cpu=$(check_native -march || check_native -mcpu)
2048         ;;
2049     esac
2050
2051     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2052 fi
2053
2054 # Deal with common $arch aliases
2055 case "$arch" in
2056     arm*)
2057         arch="arm"
2058     ;;
2059     mips|mipsel|IP*)
2060         arch="mips"
2061     ;;
2062     mips64*)
2063         arch="mips"
2064         subarch="mips64"
2065     ;;
2066     parisc|hppa)
2067         arch="parisc"
2068     ;;
2069     parisc64|hppa64)
2070         arch="parisc"
2071         subarch="parisc64"
2072     ;;
2073     "Power Macintosh"|ppc|powerpc)
2074         arch="ppc"
2075     ;;
2076     ppc64|powerpc64)
2077         arch="ppc"
2078         subarch="ppc64"
2079     ;;
2080     s390|s390x)
2081         arch="s390"
2082     ;;
2083     sh4|sh)
2084         arch="sh4"
2085     ;;
2086     sun4u|sparc64)
2087         arch="sparc"
2088         subarch="sparc64"
2089     ;;
2090     i[3-6]86|i86pc|BePC|x86_64|amd64)
2091         arch="x86"
2092     ;;
2093 esac
2094
2095 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2096 enable $arch
2097
2098 # Add processor-specific flags
2099 if test "$cpu" = generic; then
2100     : do nothing
2101 elif enabled ppc; then
2102
2103     case $(tolower $cpu) in
2104         601|ppc601|powerpc601)
2105             cpuflags="-mcpu=601"
2106             disable altivec
2107         ;;
2108         603*|ppc603*|powerpc603*)
2109             cpuflags="-mcpu=603"
2110             disable altivec
2111         ;;
2112         604*|ppc604*|powerpc604*)
2113             cpuflags="-mcpu=604"
2114             disable altivec
2115         ;;
2116         g3|75*|ppc75*|powerpc75*)
2117             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2118             disable altivec
2119         ;;
2120         g4|745*|ppc745*|powerpc745*)
2121             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2122         ;;
2123         74*|ppc74*|powerpc74*)
2124             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2125         ;;
2126         g5|970|ppc970|powerpc970|power4*)
2127             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2128         ;;
2129         cell)
2130             cpuflags="-mcpu=cell"
2131             enable ldbrx
2132         ;;
2133         e500v2)
2134             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2135             disable altivec
2136         ;;
2137         e500)
2138             cpuflags="-mcpu=8540 -mhard-float"
2139             disable altivec
2140         ;;
2141     esac
2142
2143 elif enabled x86; then
2144
2145     case $cpu in
2146         i[345]86|pentium)
2147             cpuflags="-march=$cpu"
2148             disable mmx
2149         ;;
2150         # targets that do NOT support conditional mov (cmov)
2151         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2152             cpuflags="-march=$cpu"
2153             disable cmov
2154         ;;
2155         # targets that do support conditional mov (cmov)
2156         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2157             cpuflags="-march=$cpu"
2158             enable cmov
2159             enable fast_cmov
2160         ;;
2161         # targets that do support conditional mov but on which it's slow
2162         pentium4|pentium4m|prescott|nocona)
2163             cpuflags="-march=$cpu"
2164             enable cmov
2165             disable fast_cmov
2166         ;;
2167     esac
2168
2169 elif enabled sparc; then
2170
2171     case $cpu in
2172         niagara)
2173             cpuflags="-mcpu=$cpu"
2174             disable vis
2175         ;;
2176         sparc64)
2177             cpuflags="-mcpu=v9"
2178         ;;
2179     esac
2180
2181 elif enabled arm; then
2182
2183     case $cpu in
2184         armv*)
2185             cpuflags="-march=$cpu"
2186             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2187         ;;
2188         *)
2189             cpuflags="-mcpu=$cpu"
2190             case $cpu in
2191                 cortex-a*)                               subarch=armv7a  ;;
2192                 cortex-r*)                               subarch=armv7r  ;;
2193                 cortex-m*)                               subarch=armv7m  ;;
2194                 arm11*)                                  subarch=armv6   ;;
2195                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2196                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2197             esac
2198         ;;
2199     esac
2200
2201 elif enabled alpha; then
2202
2203     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2204
2205 elif enabled bfin; then
2206
2207     cpuflags="-mcpu=$cpu"
2208
2209 elif enabled mips; then
2210
2211     cpuflags="-march=$cpu"
2212
2213 elif enabled avr32; then
2214
2215     case $cpu in
2216         ap7[02]0[0-2])
2217             subarch="avr32_ap"
2218             cpuflags="-mpart=$cpu"
2219         ;;
2220         ap)
2221             subarch="avr32_ap"
2222             cpuflags="-march=$cpu"
2223         ;;
2224         uc3[ab]*)
2225             subarch="avr32_uc"
2226             cpuflags="-mcpu=$cpu"
2227         ;;
2228         uc)
2229             subarch="avr32_uc"
2230             cpuflags="-march=$cpu"
2231         ;;
2232     esac
2233
2234 fi
2235
2236 add_cflags $cpuflags
2237 add_asflags $cpuflags
2238
2239 # compiler sanity check
2240 check_exec <<EOF
2241 int main(void){ return 0; }
2242 EOF
2243 if test "$?" != 0; then
2244     echo "$cc is unable to create an executable file."
2245     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2246         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2247         echo "Only do this if you know what cross compiling means."
2248     fi
2249     die "C compiler test failed."
2250 fi
2251
2252 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2253 check_cflags -std=c99
2254 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2255 #include <stdlib.h>
2256 EOF
2257 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2258 #include <stdlib.h>
2259 EOF
2260
2261 check_host_cflags -std=c99
2262
2263 case "$arch" in
2264     alpha|ia64|mips|parisc|sparc)
2265         spic=$shared
2266     ;;
2267     x86)
2268         subarch="x86_32"
2269         check_cc <<EOF && subarch="x86_64"
2270         int test[(int)sizeof(char*) - 7];
2271 EOF
2272         if test "$subarch" = "x86_64"; then
2273             spic=$shared
2274         fi
2275     ;;
2276 esac
2277
2278 enable $subarch
2279 enabled spic && enable pic
2280
2281 # OS specific
2282 case $target_os in
2283     haiku)
2284         prefix_default="/boot/common"
2285         network_extralibs="-lnetwork"
2286         ;;
2287     sunos)
2288         FFSERVERLDFLAGS=""
2289         SHFLAGS='-shared -Wl,-h,$$(@F)'
2290         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2291         network_extralibs="-lsocket -lnsl"
2292         add_cppflags -D__EXTENSIONS__
2293         nm_opts='-P -g'
2294         ;;
2295     netbsd)
2296         oss_indev_extralibs="-lossaudio"
2297         oss_outdev_extralibs="-lossaudio"
2298         add_cppflags -D_XOPEN_SOURCE=600
2299         ;;
2300     openbsd)
2301         enable malloc_aligned
2302         # On OpenBSD 4.5. the compiler does not use PIC unless
2303         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2304         # however the generated executable will not do anything
2305         # (simply quits with exit-code 1, no crash, no output).
2306         # Thus explicitly enable PIC here.
2307         enable pic
2308         SHFLAGS='-shared'
2309         oss_indev_extralibs="-lossaudio"
2310         oss_outdev_extralibs="-lossaudio"
2311         ;;
2312     freebsd|dragonfly)
2313         enable malloc_aligned
2314         ;;
2315     bsd/os)
2316         add_extralibs -lpoll -lgnugetopt
2317         strip="strip -d"
2318         ;;
2319     darwin)
2320         enable malloc_aligned
2321         gas="gas-preprocessor.pl $cc"
2322         enabled ppc && add_asflags -force_cpusubtype_ALL
2323         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2324         strip="${strip} -x"
2325         add_ldflags -Wl,-dynamic,-search_paths_first
2326         SLIBSUF=".dylib"
2327         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2328         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2329         FFSERVERLDFLAGS=-Wl,-bind_at_load
2330         objformat="macho"
2331         enabled x86_64 && objformat="macho64"
2332         enabled_any pic shared ||
2333             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2334         ;;
2335     mingw32*)
2336         if test $target_os = "mingw32ce"; then
2337             disable network
2338         else
2339             target_os=mingw32
2340         fi
2341         LIBTARGET=i386
2342         if enabled x86_64; then
2343             enable malloc_aligned
2344             LIBTARGET=x64
2345         elif enabled arm; then
2346             LIBTARGET=arm
2347         fi
2348         shlibdir_default="$bindir_default"
2349         disable ffserver
2350         SLIBPREF=""
2351         SLIBSUF=".dll"
2352         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2353         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2354         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2355         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2356             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2357             install -d "$(LIBDIR)"; \
2358             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2359         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2360         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'
2361         objformat="win32"
2362         enable dos_paths
2363         check_cflags -fno-common
2364         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2365                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2366                 die "ERROR: MinGW runtime version must be >= 3.15."
2367         ;;
2368     cygwin*)
2369         target_os=cygwin
2370         shlibdir_default="$bindir_default"
2371         SLIBPREF="cyg"
2372         SLIBSUF=".dll"
2373         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2374         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2375         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2376         objformat="win32"
2377         enable dos_paths
2378         check_cflags -fno-common
2379         ;;
2380     *-dos|freedos|opendos)
2381         disable ffplay ffserver
2382         disable $INDEV_LIST $OUTDEV_LIST
2383         network_extralibs="-lsocket"
2384         objformat="coff"
2385         enable dos_paths
2386         ;;
2387     linux)
2388         enable dv1394
2389         ;;
2390     irix*)
2391         target_os=irix
2392         ranlib="echo ignoring ranlib"
2393         ;;
2394     os/2*)
2395         strip="lxlite"
2396         ln_s="cp -f"
2397         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2398         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2399         FFSERVERLDFLAGS=""
2400         LIBSUF="_s.a"
2401         SLIBPREF=""
2402         SLIBSUF=".dll"
2403         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2404         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2405         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2406           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2407           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2408           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2409           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2410           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2411         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2412           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2413         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2414         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2415         enable dos_paths
2416         ;;
2417     gnu/kfreebsd)
2418         ;;
2419     gnu)
2420         ;;
2421     none)
2422         ;;
2423     *)
2424         die "Unknown OS '$target_os'."
2425         ;;
2426 esac
2427
2428 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2429
2430 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2431
2432 set_default $PATHS_LIST
2433
2434 # we need to build at least one lib type
2435 if ! enabled_any static shared; then
2436     cat <<EOF
2437 At least one library type must be built.
2438 Specify --enable-static to build the static libraries or --enable-shared to
2439 build the shared libraries as well. To only build the shared libraries specify
2440 --disable-static in addition to --enable-shared.
2441 EOF
2442     exit 1;
2443 fi
2444
2445 disabled static && LIBNAME=""
2446
2447 die_license_disabled() {
2448     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2449 }
2450
2451 die_license_disabled gpl libx264
2452 die_license_disabled gpl libxavs
2453 die_license_disabled gpl libxvid
2454 die_license_disabled gpl postproc
2455 die_license_disabled gpl x11grab
2456
2457 die_license_disabled nonfree libfaac
2458
2459 die_license_disabled version3 libopencore_amrnb
2460 die_license_disabled version3 libopencore_amrwb
2461
2462 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2463
2464 check_deps $ARCH_EXT_LIST
2465
2466 disabled optimizations || check_cflags -fomit-frame-pointer
2467
2468 enable_pic() {
2469     enable pic
2470     add_cppflags -DPIC
2471     add_cflags   -fPIC
2472     add_asflags  -fPIC
2473 }
2474
2475 enabled pic && enable_pic
2476
2477 check_cc <<EOF || die "Symbol mangling check failed."
2478 int ff_extern;
2479 EOF
2480 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2481 extern_prefix=${sym%%ff_extern*}
2482
2483 check_cc <<EOF && enable inline_asm
2484 void foo(void) { __asm__ volatile ("" ::); }
2485 EOF
2486
2487 _restrict=
2488 for restrict_keyword in restrict __restrict__ __restrict; do
2489     check_cc <<EOF && _restrict=$restrict_keyword && break
2490 void foo(char * $restrict_keyword p);
2491 EOF
2492 done
2493
2494 check_cc <<EOF && enable attribute_packed
2495 struct { int x; } __attribute__((packed)) x;
2496 EOF
2497
2498 check_cc <<EOF && enable attribute_may_alias
2499 union { int x; } __attribute__((may_alias)) x;
2500 EOF
2501
2502 check_cc <<EOF || die "endian test failed"
2503 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2504 EOF
2505 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2506
2507 if enabled alpha; then
2508
2509     check_cflags -mieee
2510
2511 elif enabled arm; then
2512
2513     check_cflags -marm
2514     nogas=die
2515
2516     check_ld <<EOF && enable vfp_args
2517 __asm__ (".eabi_attribute 28, 1");
2518 int main(void) { return 0; }
2519 EOF
2520
2521     # We have to check if pld is a nop and disable it.
2522     check_asm pld '"pld [r0]"'
2523
2524     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2525     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2526     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2527     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2528     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2529     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2530
2531     enabled_all armv6t2 shared !pic && enable_pic
2532
2533 elif enabled mips; then
2534
2535     check_asm loongson '"dmult.g $1, $2, $3"'
2536     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2537
2538 elif enabled ppc; then
2539
2540     enable local_aligned_8 local_aligned_16
2541
2542     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2543     check_asm ibm_asm   '"add 0, 0, 0"'
2544     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2545     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2546
2547     # AltiVec flags: The FSF version of GCC differs from the Apple version
2548     if enabled altivec; then
2549         nogas=warn
2550         check_cflags -maltivec -mabi=altivec &&
2551         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2552         check_cflags -faltivec
2553
2554         # check if our compiler supports Motorola AltiVec C API
2555         check_cc <<EOF || disable altivec
2556 $inc_altivec_h
2557 int main(void) {
2558     vector signed int v1, v2, v3;
2559     v1 = vec_add(v2,v3);
2560     return 0;
2561 }
2562 EOF
2563
2564         # check if our compiler supports braces for vector declarations
2565         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2566 $inc_altivec_h
2567 int main (void) { (vector int) {1}; return 0; }
2568 EOF
2569     fi
2570
2571 elif enabled sparc; then
2572
2573     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2574         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2575
2576 elif enabled x86; then
2577
2578     enable local_aligned_8 local_aligned_16
2579
2580     # check whether EBP is available on x86
2581     # As 'i' is stored on the stack, this program will crash
2582     # if the base pointer is used to access it because the
2583     # base pointer is cleared in the inline assembly code.
2584     check_exec_crash <<EOF && enable ebp_available
2585     volatile int i=0;
2586     __asm__ volatile (
2587         "xorl %%ebp, %%ebp"
2588     ::: "%ebp");
2589     return i;
2590 EOF
2591
2592     # check whether EBX is available on x86
2593     check_asm ebx_available '""::"b"(0)' &&
2594         check_asm ebx_available '"":::"%ebx"'
2595
2596     # check whether xmm clobbers are supported
2597     check_asm xmm_clobbers '"":::"%xmm0"'
2598
2599     # check whether more than 10 operands are supported
2600     check_cc <<EOF && enable ten_operands
2601 int main(void) {
2602     int x=0;
2603     __asm__ volatile(
2604         ""
2605         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2606     );
2607     return 0;
2608 }
2609 EOF
2610
2611     # check whether binutils is new enough to compile SSSE3/MMX2
2612     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2613     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2614
2615     check_asm bswap '"bswap %%eax" ::: "%eax"'
2616
2617     if ! disabled_any asm mmx yasm; then
2618         if check_cmd $yasmexe --version; then
2619             enabled x86_64 && yasm_extra="-m amd64"
2620             yasm_debug="-g dwarf2"
2621         elif check_cmd nasm -v; then
2622             yasmexe=nasm
2623             yasm_debug="-g -F dwarf"
2624             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2625         fi
2626
2627         YASMFLAGS="-f $objformat $yasm_extra"
2628         enabled pic               && append YASMFLAGS "-DPIC"
2629         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2630         case "$objformat" in
2631             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2632         esac
2633
2634         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2635             die "yasm not found, use --disable-yasm for a crippled build"
2636     fi
2637
2638     case "$cpu" in
2639         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2640             disable fast_clz
2641         ;;
2642     esac
2643
2644 fi
2645
2646 if enabled asm; then
2647     as=${gas:=$as}
2648     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2649         $nogas "GNU assembler not found, install gas-preprocessor"
2650 fi
2651
2652 if check_func dlopen; then
2653     ldl=
2654 elif check_func dlopen -ldl; then
2655     ldl=-ldl
2656 fi
2657
2658 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2659 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2660
2661 check_func  fcntl
2662 check_func  fork
2663 check_func  getaddrinfo $network_extralibs
2664 check_func  gethrtime
2665 check_func  getrusage
2666 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2667 check_func  inet_aton $network_extralibs
2668 check_func  isatty
2669 check_func  ${malloc_prefix}memalign            && enable memalign
2670 check_func  mkstemp
2671 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2672 check_func  setrlimit
2673 check_func  strerror_r
2674 check_func  strtok_r
2675 check_func_headers io.h setmode
2676 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2677 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2678 check_func_headers windows.h GetProcessTimes
2679 check_func_headers windows.h VirtualAlloc
2680
2681 check_header conio.h
2682 check_header dlfcn.h
2683 check_header dxva2api.h
2684 check_header malloc.h
2685 check_header poll.h
2686 check_header sys/mman.h
2687 check_header sys/resource.h
2688 check_header sys/select.h
2689 check_header termios.h
2690 check_header vdpau/vdpau.h
2691 check_header vdpau/vdpau_x11.h
2692 check_header X11/extensions/XvMClib.h
2693
2694 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2695
2696 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2697      enabled_any $need_memalign ; then
2698     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2699 fi
2700
2701 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2702 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2703
2704 # check for some common methods of building with pthread support
2705 # do this before the optional library checks as some of them require pthreads
2706 if ! disabled pthreads && ! enabled w32threads; then
2707     enable pthreads
2708     if check_func pthread_create; then
2709         :
2710     elif check_func pthread_create -pthread; then
2711         add_cflags -pthread
2712         add_extralibs -pthread
2713     elif check_func pthread_create -pthreads; then
2714         add_cflags -pthreads
2715         add_extralibs -pthreads
2716     elif check_func pthread_create -lpthreadGC2; then
2717         add_extralibs -lpthreadGC2
2718     elif ! check_lib pthread.h pthread_create -lpthread; then
2719         disable pthreads
2720     fi
2721 fi
2722
2723 for thread in $THREADS_LIST; do
2724     if enabled $thread; then
2725         test -n "$thread_type" &&
2726             die "ERROR: Only one thread type must be selected." ||
2727             thread_type="$thread"
2728     fi
2729 done
2730
2731 check_lib math.h sin -lm
2732 disabled vaapi || check_lib va/va.h vaInitialize -lva
2733
2734 check_mathfunc exp2
2735 check_mathfunc exp2f
2736 check_mathfunc llrint
2737 check_mathfunc llrintf
2738 check_mathfunc log2
2739 check_mathfunc log2f
2740 check_mathfunc lrint
2741 check_mathfunc lrintf
2742 check_mathfunc round
2743 check_mathfunc roundf
2744 check_mathfunc truncf
2745
2746 # these are off by default, so fail if requested and not available
2747 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2748 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2749 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2750                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2751                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2752 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2753 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2754 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2755 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2756 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2757 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2758 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2759                         die "ERROR: libopencv not found"; }
2760 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2761 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2762                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2763 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2764                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2765 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2766 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2767 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2768 enabled libvpx     && {
2769     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2770                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2771     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2772                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2773 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2774                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2775                         die "ERROR: libx264 version must be >= 0.99."; }
2776 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2777 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2778 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2779
2780 # libdc1394 check
2781 if enabled libdc1394; then
2782     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2783         enable libdc1394_2; } ||
2784     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2785         enable libdc1394_1; } ||
2786     die "ERROR: No version of libdc1394 found "
2787 fi
2788
2789 SDL_CONFIG="${cross_prefix}sdl-config"
2790 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2791     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2792     sdl_libs=$("${SDL_CONFIG}" --libs)
2793     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2794     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2795     enable sdl &&
2796     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2797 fi
2798
2799 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2800
2801 if enabled network; then
2802     check_type "sys/types.h sys/socket.h" socklen_t
2803     check_type netdb.h "struct addrinfo"
2804     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2805     check_type netinet/in.h "struct sockaddr_in6"
2806     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2807     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2808     # Prefer arpa/inet.h over winsock2
2809     if check_header arpa/inet.h ; then
2810         check_func closesocket
2811     elif check_header winsock2.h ; then
2812         check_func_headers winsock2.h closesocket -lws2 && \
2813             network_extralibs="-lws2" || \
2814         { check_func_headers winsock2.h closesocket -lws2_32 && \
2815             network_extralibs="-lws2_32"; }
2816         check_type ws2tcpip.h socklen_t
2817         check_type ws2tcpip.h "struct addrinfo"
2818         check_type ws2tcpip.h "struct ipv6_mreq"
2819         check_type ws2tcpip.h "struct sockaddr_in6"
2820         check_type ws2tcpip.h "struct sockaddr_storage"
2821         check_struct winsock2.h "struct sockaddr" sa_len
2822     else
2823         disable network
2824     fi
2825 fi
2826
2827 check_header linux/videodev.h
2828 check_header linux/videodev2.h
2829 check_header sys/videoio.h
2830
2831 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2832 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2833 # w32api 3.12 had it defined wrong
2834 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2835
2836 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2837 { check_header dev/bktr/ioctl_meteor.h &&
2838   check_header dev/bktr/ioctl_bt848.h; } ||
2839 { check_header machine/ioctl_meteor.h &&
2840   check_header machine/ioctl_bt848.h; } ||
2841 { check_header dev/video/meteor/ioctl_meteor.h &&
2842   check_header dev/video/bktr/ioctl_bt848.h; } ||
2843 check_header dev/ic/bt8xx.h
2844
2845 check_header sys/soundcard.h
2846 check_header soundcard.h
2847
2848 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2849
2850 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2851
2852 enabled x11grab                         &&
2853 check_header X11/Xlib.h                 &&
2854 check_header X11/extensions/XShm.h      &&
2855 check_header X11/extensions/Xfixes.h    &&
2856 check_func XOpenDisplay -lX11           &&
2857 check_func XShmCreateImage -lX11 -lXext &&
2858 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2859
2860 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2861 check_cpp_condition \
2862     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2863     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2864       disable vdpau; }
2865 fi
2866
2867 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2868
2869 # add some useful compiler flags if supported
2870 check_cflags -Wdeclaration-after-statement
2871 check_cflags -Wall
2872 check_cflags -Wno-parentheses
2873 check_cflags -Wno-switch
2874 check_cflags -Wdisabled-optimization
2875 check_cflags -Wpointer-arith
2876 check_cflags -Wredundant-decls
2877 check_cflags -Wno-pointer-sign
2878 check_cflags -Wcast-qual
2879 check_cflags -Wwrite-strings
2880 check_cflags -Wtype-limits
2881 check_cflags -Wundef
2882 check_cflags -Wmissing-prototypes
2883 enabled extra_warnings && check_cflags -Winline
2884
2885 # add some linker flags
2886 check_ldflags -Wl,--warn-common
2887 check_ldflags -Wl,--as-needed
2888 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)/libavcore -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2889 check_ldflags -Wl,-Bsymbolic
2890
2891 echo "X{};" > $TMPV
2892 if test_ldflags -Wl,--version-script,$TMPV; then
2893     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2894     check_cc <<EOF && enable symver_asm_label
2895 void ff_foo(void) __asm__ ("av_foo@VERSION");
2896 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2897 EOF
2898     check_cc <<EOF && enable symver_gnu_asm
2899 __asm__(".symver ff_foo,av_foo@VERSION");
2900 void ff_foo(void) {}
2901 EOF
2902 fi
2903
2904 if enabled small; then
2905     add_cflags $size_cflags
2906     optimizations="small"
2907 elif enabled optimizations; then
2908     add_cflags $speed_cflags
2909 else
2910     add_cflags $noopt_cflags
2911 fi
2912 check_cflags -fno-math-errno
2913 check_cflags -fno-signed-zeros
2914
2915 if enabled icc; then
2916     # Just warnings, no remarks
2917     check_cflags -w1
2918     # -wd: Disable following warnings
2919     # 144, 167, 556: -Wno-pointer-sign
2920     # 10006: ignoring unknown option -fno-signed-zeros
2921     # 10148: ignoring unknown option -Wno-parentheses
2922     # 10156: ignoring option '-W'; no argument required
2923     check_cflags -wd144,167,556,10006,10148,10156
2924     # 11030: Warning unknown option --as-needed
2925     # 10156: ignoring option '-export'; no argument required
2926     check_ldflags -wd10156,11030
2927     # Allow to compile with optimizations
2928     check_ldflags -march=$cpu
2929     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2930     enable ebp_available
2931     if enabled x86_32; then
2932         test ${icc_version%%.*} -ge 11 && \
2933             check_cflags -falign-stack=maintain-16-byte || \
2934             disable aligned_stack
2935     fi
2936 elif enabled ccc; then
2937     # disable some annoying warnings
2938     add_cflags -msg_disable cvtu32to64
2939     add_cflags -msg_disable embedcomment
2940     add_cflags -msg_disable needconstext
2941     add_cflags -msg_disable nomainieee
2942     add_cflags -msg_disable ptrmismatch1
2943     add_cflags -msg_disable unreachcode
2944 elif enabled gcc; then
2945     check_cflags -fno-tree-vectorize
2946     check_cflags -Werror=implicit-function-declaration
2947     check_cflags -Werror=missing-prototypes
2948 elif enabled llvm_gcc; then
2949     check_cflags -mllvm -stack-alignment=16
2950 elif enabled clang; then
2951     check_cflags -mllvm -stack-alignment=16
2952     check_cflags -Qunused-arguments
2953 elif enabled armcc; then
2954     # 2523: use of inline assembler is deprecated
2955     add_cflags -W${armcc_opt},--diag_suppress=2523
2956     add_cflags -W${armcc_opt},--diag_suppress=1207
2957 elif enabled tms470; then
2958     add_cflags -pds=824 -pds=837
2959 fi
2960
2961 enabled_any $THREADS_LIST      && enable threads
2962
2963 check_deps $CONFIG_LIST       \
2964            $CONFIG_EXTRA      \
2965            $HAVE_LIST         \
2966            $DECODER_LIST      \
2967            $ENCODER_LIST      \
2968            $HWACCEL_LIST      \
2969            $PARSER_LIST       \
2970            $BSF_LIST          \
2971            $DEMUXER_LIST      \
2972            $MUXER_LIST        \
2973            $FILTER_LIST       \
2974            $INDEV_LIST        \
2975            $OUTDEV_LIST       \
2976            $PROTOCOL_LIST     \
2977            $ACODEC_TESTS      \
2978            $VCODEC_TESTS      \
2979            $LAVF_TESTS        \
2980            $LAVFI_TESTS       \
2981            $SEEK_TESTS        \
2982
2983 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2984
2985 echo "install prefix            $prefix"
2986 echo "source path               $source_path"
2987 echo "C compiler                $cc"
2988 echo "ARCH                      $arch ($cpu)"
2989 if test "$build_suffix" != ""; then
2990     echo "build suffix              $build_suffix"
2991 fi
2992 if test "$extra_version" != ""; then
2993     echo "version string suffix     $extra_version"
2994 fi
2995 echo "big-endian                ${bigendian-no}"
2996 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2997 if enabled x86; then
2998     echo "yasm                      ${yasm-no}"
2999     echo "MMX enabled               ${mmx-no}"
3000     echo "MMX2 enabled              ${mmx2-no}"
3001     echo "3DNow! enabled            ${amd3dnow-no}"
3002     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3003     echo "SSE enabled               ${sse-no}"
3004     echo "SSSE3 enabled             ${ssse3-no}"
3005     echo "CMOV enabled              ${cmov-no}"
3006     echo "CMOV is fast              ${fast_cmov-no}"
3007     echo "EBX available             ${ebx_available-no}"
3008     echo "EBP available             ${ebp_available-no}"
3009     echo "10 operands supported     ${ten_operands-no}"
3010 fi
3011 if enabled arm; then
3012     echo "ARMv5TE enabled           ${armv5te-no}"
3013     echo "ARMv6 enabled             ${armv6-no}"
3014     echo "ARMv6T2 enabled           ${armv6t2-no}"
3015     echo "ARM VFP enabled           ${armvfp-no}"
3016     echo "IWMMXT enabled            ${iwmmxt-no}"
3017     echo "NEON enabled              ${neon-no}"
3018 fi
3019 if enabled mips; then
3020     echo "MMI enabled               ${mmi-no}"
3021 fi
3022 if enabled ppc; then
3023     echo "AltiVec enabled           ${altivec-no}"
3024     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3025     echo "dcbzl available           ${dcbzl-no}"
3026 fi
3027 if enabled sparc; then
3028     echo "VIS enabled               ${vis-no}"
3029 fi
3030 echo "debug symbols             ${debug-no}"
3031 echo "strip symbols             ${stripping-no}"
3032 echo "optimizations             ${optimizations-no}"
3033 echo "static                    ${static-no}"
3034 echo "shared                    ${shared-no}"
3035 echo "postprocessing support    ${postproc-no}"
3036 echo "new filter support        ${avfilter-no}"
3037 echo "network support           ${network-no}"
3038 echo "threading support         ${thread_type-no}"
3039 echo "SDL support               ${sdl-no}"
3040 echo "Sun medialib support      ${mlib-no}"
3041 echo "AVISynth enabled          ${avisynth-no}"
3042 echo "frei0r enabled            ${frei0r-no}"
3043 echo "libdc1394 support         ${libdc1394-no}"
3044 echo "libdirac enabled          ${libdirac-no}"
3045 echo "libfaac enabled           ${libfaac-no}"
3046 echo "libgsm enabled            ${libgsm-no}"
3047 echo "libmp3lame enabled        ${libmp3lame-no}"
3048 echo "libnut enabled            ${libnut-no}"
3049 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3050 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3051 echo "libopencv support         ${libopencv-no}"
3052 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3053 echo "librtmp enabled           ${librtmp-no}"
3054 echo "libschroedinger enabled   ${libschroedinger-no}"
3055 echo "libspeex enabled          ${libspeex-no}"
3056 echo "libtheora enabled         ${libtheora-no}"
3057 echo "libvorbis enabled         ${libvorbis-no}"
3058 echo "libvpx enabled            ${libvpx-no}"
3059 echo "libx264 enabled           ${libx264-no}"
3060 echo "libxavs enabled           ${libxavs-no}"
3061 echo "libxvid enabled           ${libxvid-no}"
3062 echo "zlib enabled              ${zlib-no}"
3063 echo "bzlib enabled             ${bzlib-no}"
3064 echo
3065
3066 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3067     echo "Enabled ${type}s:"
3068     eval list=\$$(toupper $type)_LIST
3069     print_enabled '_*' $list | sort | pr -3 -t
3070     echo
3071 done
3072
3073 license="LGPL version 2.1 or later"
3074 if enabled nonfree; then
3075     license="nonfree and unredistributable"
3076 elif enabled gplv3; then
3077     license="GPL version 3 or later"
3078 elif enabled lgplv3; then
3079     license="LGPL version 3 or later"
3080 elif enabled gpl; then
3081     license="GPL version 2 or later"
3082 fi
3083
3084 echo "License: $license"
3085
3086 echo "Creating config.mak and config.h..."
3087
3088 # build tree in object directory if source path is different from current one
3089 if enabled source_path_used; then
3090     DIRS="
3091         doc
3092         libavcodec
3093         libavcodec/$arch
3094         libavcore
3095         libavdevice
3096         libavfilter
3097         libavfilter/$arch
3098         libavformat
3099         libavutil
3100         libavutil/$arch
3101         libpostproc
3102         libswscale
3103         libswscale/$arch
3104         tests
3105         tools
3106     "
3107     FILES="
3108         Makefile
3109         common.mak
3110         subdir.mak
3111         doc/texi2pod.pl
3112         libavcodec/Makefile
3113         libavcodec/${arch}/Makefile
3114         libavcore/Makefile
3115         libavdevice/Makefile
3116         libavfilter/Makefile
3117         libavfilter/${arch}/Makefile
3118         libavformat/Makefile
3119         libavutil/Makefile
3120         libpostproc/Makefile
3121         libswscale/Makefile
3122     "
3123     map 'mkdir -p $v' $DIRS;
3124     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3125 fi
3126
3127 enabled stripping || strip="echo skipping strip"
3128
3129 config_files="$TMPH config.mak"
3130
3131 cat > config.mak <<EOF
3132 # Automatically generated by configure - do not modify!
3133 ifndef FFMPEG_CONFIG_MAK
3134 FFMPEG_CONFIG_MAK=1
3135 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3136 prefix=$prefix
3137 LIBDIR=\$(DESTDIR)$libdir
3138 SHLIBDIR=\$(DESTDIR)$shlibdir
3139 INCDIR=\$(DESTDIR)$incdir
3140 BINDIR=\$(DESTDIR)$bindir
3141 DATADIR=\$(DESTDIR)$datadir
3142 MANDIR=\$(DESTDIR)$mandir
3143 SRC_PATH="$source_path"
3144 SRC_PATH_BARE=$source_path
3145 BUILD_ROOT="$PWD"
3146 CC_IDENT=$cc_ident
3147 ARCH=$arch
3148 CC=$cc
3149 AS=$as
3150 LD=$ld
3151 DEPCC=$dep_cc
3152 YASM=$yasmexe
3153 YASMDEP=$yasmexe
3154 AR=$ar
3155 RANLIB=$ranlib
3156 CP=cp -p
3157 LN_S=$ln_s
3158 STRIP=$strip
3159 CPPFLAGS=$CPPFLAGS
3160 CFLAGS=$CFLAGS
3161 ASFLAGS=$ASFLAGS
3162 CC_O=$CC_O
3163 LDFLAGS=$LDFLAGS
3164 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3165 SHFLAGS=$SHFLAGS
3166 YASMFLAGS=$YASMFLAGS
3167 BUILDSUF=$build_suffix
3168 FULLNAME=$FULLNAME
3169 LIBPREF=$LIBPREF
3170 LIBSUF=$LIBSUF
3171 LIBNAME=$LIBNAME
3172 SLIBPREF=$SLIBPREF
3173 SLIBSUF=$SLIBSUF
3174 EXESUF=$EXESUF
3175 EXTRA_VERSION=$extra_version
3176 DEPFLAGS=$DEPFLAGS
3177 CCDEP=$CCDEP
3178 ASDEP=$ASDEP
3179 CC_DEPFLAGS=$CC_DEPFLAGS
3180 AS_DEPFLAGS=$AS_DEPFLAGS
3181 HOSTCC=$host_cc
3182 HOSTCFLAGS=$host_cflags
3183 HOSTEXESUF=$HOSTEXESUF
3184 HOSTLDFLAGS=$host_ldflags
3185 HOSTLIBS=$host_libs
3186 TARGET_EXEC=$target_exec
3187 TARGET_PATH=$target_path
3188 SDL_LIBS=$sdl_libs
3189 SDL_CFLAGS=$sdl_cflags
3190 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3191 EXTRALIBS=$extralibs
3192 INSTALL=install
3193 LIBTARGET=${LIBTARGET}
3194 SLIBNAME=${SLIBNAME}
3195 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3196 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3197 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3198 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3199 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3200 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3201 SAMPLES=$samples
3202 EOF
3203
3204 get_version(){
3205     name=$1
3206     file=$source_path/$2
3207     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3208     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3209     lcname=$(tolower $name)
3210     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3211     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3212 }
3213
3214 get_version LIBSWSCALE  libswscale/swscale.h
3215 get_version LIBPOSTPROC libpostproc/postprocess.h
3216 get_version LIBAVCODEC  libavcodec/avcodec.h
3217 get_version LIBAVCORE   libavcore/avcore.h
3218 get_version LIBAVDEVICE libavdevice/avdevice.h
3219 get_version LIBAVFORMAT libavformat/avformat.h
3220 get_version LIBAVUTIL   libavutil/avutil.h
3221 get_version LIBAVFILTER libavfilter/avfilter.h
3222
3223 cat > $TMPH <<EOF
3224 /* Automatically generated by configure - do not modify! */
3225 #ifndef FFMPEG_CONFIG_H
3226 #define FFMPEG_CONFIG_H
3227 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3228 #define FFMPEG_LICENSE "$(c_escape $license)"
3229 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3230 #define CC_TYPE "$cc_type"
3231 #define CC_VERSION $cc_version
3232 #define restrict $_restrict
3233 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3234 #define EXTERN_PREFIX "${extern_prefix}"
3235 #define EXTERN_ASM ${extern_prefix}
3236 #define SLIBSUF "$SLIBSUF"
3237 EOF
3238
3239 test -n "$malloc_prefix" &&
3240     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3241
3242 if enabled small || disabled optimizations; then
3243     echo "#undef  av_always_inline"  >> $TMPH
3244     echo "#define av_always_inline"  >> $TMPH
3245 fi
3246
3247 if enabled yasm; then
3248     append config_files $TMPASM
3249     printf '' >$TMPASM
3250 fi
3251
3252 print_config ARCH_   "$config_files" $ARCH_LIST
3253 print_config HAVE_   "$config_files" $HAVE_LIST
3254 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3255                                      $CONFIG_EXTRA      \
3256                                      $DECODER_LIST      \
3257                                      $ENCODER_LIST      \
3258                                      $HWACCEL_LIST      \
3259                                      $PARSER_LIST       \
3260                                      $BSF_LIST          \
3261                                      $DEMUXER_LIST      \
3262                                      $MUXER_LIST        \
3263                                      $FILTER_LIST       \
3264                                      $PROTOCOL_LIST     \
3265                                      $INDEV_LIST        \
3266                                      $OUTDEV_LIST       \
3267
3268 cat >>config.mak <<EOF
3269 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3270 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3271 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3272 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3273 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3274 EOF
3275
3276 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3277 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3278
3279 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3280 cp_if_changed $TMPH config.h
3281 touch .config
3282
3283 enabled yasm && cp_if_changed $TMPASM config.asm
3284
3285 cat > $TMPH <<EOF
3286 /* Generated by ffconf */
3287 #ifndef AVUTIL_AVCONFIG_H
3288 #define AVUTIL_AVCONFIG_H
3289 EOF
3290
3291 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3292
3293 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3294
3295 cp_if_changed $TMPH libavutil/avconfig.h
3296
3297 test -n "$WARNINGS" && printf "\n$WARNINGS"
3298
3299 # build pkg-config files
3300
3301 pkgconfig_generate(){
3302 name=$1
3303 shortname=${name#lib}${build_suffix}
3304 comment=$2
3305 version=$3
3306 libs=$4
3307 requires=$5
3308 enabled ${name#lib} || return 0
3309 cat <<EOF > $name/$name.pc
3310 prefix=$prefix
3311 exec_prefix=\${prefix}
3312 libdir=$libdir
3313 includedir=$incdir
3314
3315 Name: $name
3316 Description: $comment
3317 Version: $version
3318 Requires: $(enabled shared || echo $requires)
3319 Requires.private: $(enabled shared && echo $requires)
3320 Conflicts:
3321 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3322 Libs.private: $(enabled shared && echo $libs)
3323 Cflags: -I\${includedir}
3324 EOF
3325 cat <<EOF > $name/$name-uninstalled.pc
3326 prefix=
3327 exec_prefix=
3328 libdir=\${pcfiledir}
3329 includedir=${source_path}
3330
3331 Name: $name
3332 Description: $comment
3333 Version: $version
3334 Requires: $requires
3335 Conflicts:
3336 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3337 Cflags: -I\${includedir}
3338 EOF
3339 }
3340
3341 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3342 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3343 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3344 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3345 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3346 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3347 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3348 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"