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 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1410 hqdn3d_filter_deps="gpl"
1411 ocv_smooth_filter_deps="libopencv"
1412 yadif_filter_deps="gpl"
1413
1414 # libraries
1415 avdevice_deps="avcodec avformat"
1416 avformat_deps="avcodec"
1417
1418 # programs
1419 ffmpeg_deps="avcodec avformat swscale"
1420 ffmpeg_select="buffer_filter"
1421 ffplay_deps="avcodec avformat swscale sdl"
1422 ffplay_select="rdft"
1423 ffprobe_deps="avcodec avformat"
1424 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1425 ffserver_extralibs='$ldl'
1426
1427 doc_deps="texi2html"
1428
1429 # tests
1430
1431 test_deps(){
1432     suf1=$1
1433     suf2=$2
1434     shift 2
1435     for v; do
1436         dep=${v%=*}
1437         tests=${v#*=}
1438         for name in ${tests}; do
1439             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1440         done
1441     done
1442 }
1443
1444 set_ne_test_deps(){
1445     eval ${1}_be_test_deps="bigendian"
1446     eval ${1}_le_test_deps="!bigendian"
1447 }
1448
1449 test_deps _encoder _decoder                                             \
1450     ac3                                                                 \
1451     adpcm_g726=g726                                                     \
1452     adpcm_ima_qt                                                        \
1453     adpcm_ima_wav                                                       \
1454     adpcm_ms                                                            \
1455     adpcm_swf                                                           \
1456     adpcm_yamaha=adpcm_yam                                              \
1457     alac                                                                \
1458     asv1                                                                \
1459     asv2                                                                \
1460     bmp                                                                 \
1461     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1462     dvvideo="dv dv50"                                                   \
1463     ffv1                                                                \
1464     flac                                                                \
1465     flashsv                                                             \
1466     flv                                                                 \
1467     gif                                                                 \
1468     h261                                                                \
1469     h263="h263 h263p"                                                   \
1470     huffyuv                                                             \
1471     jpegls                                                              \
1472     mjpeg="jpg mjpeg ljpeg"                                             \
1473     mp2                                                                 \
1474     mpeg1video="mpeg mpeg1b"                                            \
1475     mpeg2video="mpeg2 mpeg2thread"                                      \
1476     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1477     msmpeg4v3=msmpeg4                                                   \
1478     msmpeg4v2                                                           \
1479     pbm=pbmpipe                                                         \
1480     pcx                                                                 \
1481     pgm="pgm pgmpipe"                                                   \
1482     ppm="ppm ppmpipe"                                                   \
1483     rawvideo="rgb yuv"                                                  \
1484     roq                                                                 \
1485     rv10                                                                \
1486     rv20                                                                \
1487     sgi                                                                 \
1488     snow="snow snowll"                                                  \
1489     svq1                                                                \
1490     targa=tga                                                           \
1491     tiff                                                                \
1492     wmav1                                                               \
1493     wmav2                                                               \
1494     wmv1                                                                \
1495     wmv2                                                                \
1496
1497 test_deps _muxer _demuxer                                               \
1498     aiff                                                                \
1499     pcm_alaw=alaw                                                       \
1500     asf                                                                 \
1501     au                                                                  \
1502     avi                                                                 \
1503     dv=dv_fmt                                                           \
1504     ffm                                                                 \
1505     flv=flv_fmt                                                         \
1506     gxf                                                                 \
1507     matroska=mkv                                                        \
1508     mmf                                                                 \
1509     mov                                                                 \
1510     pcm_mulaw=mulaw                                                     \
1511     mxf                                                                 \
1512     nut                                                                 \
1513     ogg                                                                 \
1514     rawvideo=pixfmt                                                     \
1515     rm                                                                  \
1516     swf                                                                 \
1517     mpegts=ts                                                           \
1518     voc                                                                 \
1519     wav                                                                 \
1520     yuv4mpegpipe=yuv4mpeg                                               \
1521
1522 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1523
1524 set_ne_test_deps pixdesc
1525 set_ne_test_deps pixfmts_crop
1526 set_ne_test_deps pixfmts_hflip
1527 set_ne_test_deps pixfmts_null
1528 set_ne_test_deps pixfmts_pad
1529 set_ne_test_deps pixfmts_scale
1530 set_ne_test_deps pixfmts_vflip
1531
1532 # default parameters
1533
1534 logfile="config.log"
1535
1536 # installation paths
1537 prefix_default="/usr/local"
1538 bindir_default='${prefix}/bin'
1539 datadir_default='${prefix}/share/ffmpeg'
1540 incdir_default='${prefix}/include'
1541 libdir_default='${prefix}/lib'
1542 mandir_default='${prefix}/share/man'
1543 shlibdir_default="$libdir_default"
1544
1545 # toolchain
1546 ar_default="ar"
1547 cc_default="gcc"
1548 cc_version=\"unknown\"
1549 host_cc_default="gcc"
1550 ln_s="ln -sf"
1551 nm_default="nm"
1552 objformat="elf"
1553 ranlib="ranlib"
1554 strip_default="strip"
1555 yasmexe="yasm"
1556 nogas=":"
1557
1558 nm_opts='-g'
1559
1560 # machine
1561 arch_default=$(uname -m)
1562 cpu="generic"
1563
1564 # OS
1565 target_os_default=$(tolower $(uname -s))
1566 host_os=$target_os_default
1567
1568 # configurable options
1569 enable avcodec
1570 enable avcore
1571 enable avdevice
1572 enable avfilter
1573 enable avformat
1574 enable avutil
1575 enable asm
1576 enable debug
1577 enable doc
1578 enable fastdiv
1579 enable ffmpeg
1580 enable ffplay
1581 enable ffprobe
1582 enable ffserver
1583 enable mpegaudio_hp
1584 enable network
1585 enable optimizations
1586 enable protocols
1587 enable static
1588 enable stripping
1589 enable swscale
1590 enable swscale_alpha
1591
1592 # build settings
1593 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1594 FFSERVERLDFLAGS=-Wl,-E
1595 LIBPREF="lib"
1596 LIBSUF=".a"
1597 FULLNAME='$(NAME)$(BUILDSUF)'
1598 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1599 SLIBPREF="lib"
1600 SLIBSUF=".so"
1601 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1602 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1603 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1604 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1605
1606 CC_O='-o $@'
1607
1608 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1609 host_libs='-lm'
1610
1611 target_path='$(CURDIR)'
1612
1613 # since the object filename is not given with the -MM flag, the compiler
1614 # is only able to print the basename, and we must add the path ourselves
1615 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1616 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1617
1618 # find source path
1619 source_path="$(dirname "$0")"
1620 enable source_path_used
1621 if test -f configure; then
1622     source_path="$(pwd)"
1623     disable source_path_used
1624 else
1625     source_path="$(cd "$source_path"; pwd)"
1626     echo "$source_path" | grep -q '[[:blank:]]' &&
1627         die "Out of tree builds are impossible with whitespace in source path."
1628     test -e "$source_path/config.h" &&
1629         die "Out of tree builds are impossible with config.h in source dir."
1630 fi
1631
1632 for v in "$@"; do
1633     r=${v#*=}
1634     l=${v%"$r"}
1635     r=$(sh_quote "$r")
1636     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1637 done
1638
1639 find_things(){
1640     thing=$1
1641     pattern=$2
1642     file=$source_path/$3
1643     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1644 }
1645
1646 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1647 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1648 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1649 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1650 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1651 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1652 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1653 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1654 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1655 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1656 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1657
1658 find_tests(){
1659     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1660 }
1661
1662 ACODEC_TESTS=$(find_tests acodec)
1663 VCODEC_TESTS=$(find_tests vsynth1)
1664 LAVF_TESTS=$(find_tests lavf)
1665 LAVFI_TESTS=$(find_tests lavfi)
1666 SEEK_TESTS=$(find_tests seek seek_)
1667
1668 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1669
1670 for n in $COMPONENT_LIST; do
1671     v=$(toupper ${n%s})_LIST
1672     eval enable \$$v
1673     eval ${n}_if_any="\$$v"
1674 done
1675
1676 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1677
1678 die_unknown(){
1679     echo "Unknown option \"$1\"."
1680     echo "See $0 --help for available options."
1681     exit 1
1682 }
1683
1684 show_list() {
1685     suffix=_$1
1686     shift
1687     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1688     exit 0
1689 }
1690
1691 for opt do
1692     optval="${opt#*=}"
1693     case "$opt" in
1694     --extra-ldflags=*) add_ldflags $optval
1695     ;;
1696     --extra-libs=*) add_extralibs $optval
1697     ;;
1698     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1699     ;;
1700     --enable-debug=*) debuglevel="$optval"
1701     ;;
1702     --disable-everything)
1703     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1704     ;;
1705     --enable-*=*|--disable-*=*)
1706     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1707     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1708     eval list=\$$(toupper $thing)_LIST
1709     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1710     $action $(filter "$name" $list)
1711     ;;
1712     --enable-?*|--disable-?*)
1713     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1714     if is_in $option $COMPONENT_LIST; then
1715         test $action = disable && action=unset
1716         eval $action \$$(toupper ${option%s})_LIST
1717     elif is_in $option $CMDLINE_SELECT; then
1718         $action $option
1719     else
1720         die_unknown $opt
1721     fi
1722     ;;
1723     --list-*)
1724         NAME="${opt#--list-}"
1725         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1726         NAME=${NAME%s}
1727         eval show_list $NAME \$$(toupper $NAME)_LIST
1728     ;;
1729     --help|-h) show_help
1730     ;;
1731     *)
1732     optname="${opt%%=*}"
1733     optname="${optname#--}"
1734     optname=$(echo "$optname" | sed 's/-/_/g')
1735     if is_in $optname $CMDLINE_SET; then
1736         eval $optname='$optval'
1737     elif is_in $optname $CMDLINE_APPEND; then
1738         append $optname "$optval"
1739     else
1740          die_unknown $opt
1741     fi
1742     ;;
1743     esac
1744 done
1745
1746 disabled logging && logfile=/dev/null
1747
1748 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1749 set >> $logfile
1750
1751 test -n "$cross_prefix" && enable cross_compile
1752
1753 if enabled cross_compile; then
1754     test -n "$arch" && test -n "$target_os" ||
1755         die "Must specify target arch and OS when cross-compiling"
1756 fi
1757
1758 set_default arch target_os
1759
1760 ar_default="${cross_prefix}${ar_default}"
1761 cc_default="${cross_prefix}${cc_default}"
1762 nm_default="${cross_prefix}${nm_default}"
1763 ranlib="${cross_prefix}${ranlib}"
1764 strip_default="${cross_prefix}${strip_default}"
1765
1766 sysinclude_default="${sysroot}/usr/include"
1767
1768 set_default cc nm strip sysinclude
1769 enabled cross_compile || host_cc_default=$cc
1770 set_default host_cc
1771
1772 exesuf() {
1773     case $1 in
1774         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1775     esac
1776 }
1777
1778 EXESUF=$(exesuf $target_os)
1779 HOSTEXESUF=$(exesuf $host_os)
1780
1781 # set temporary file name
1782 : ${TMPDIR:=$TEMPDIR}
1783 : ${TMPDIR:=$TMP}
1784 : ${TMPDIR:=/tmp}
1785
1786 if ! check_cmd type mktemp; then
1787     # simple replacement for missing mktemp
1788     # NOT SAFE FOR GENERAL USE
1789     mktemp(){
1790         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1791     }
1792 fi
1793
1794 tmpfile(){
1795     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1796         (set -C; exec > $tmp) 2>/dev/null ||
1797         die "Unable to create temporary file in $TMPDIR."
1798     append TMPFILES $tmp
1799     eval $1=$tmp
1800 }
1801
1802 trap 'rm -f -- $TMPFILES' EXIT
1803 trap exit HUP INT TERM
1804
1805 tmpfile TMPC  .c
1806 tmpfile TMPE  $EXESUF
1807 tmpfile TMPH  .h
1808 tmpfile TMPO  .o
1809 tmpfile TMPS  .S
1810 tmpfile TMPV  .ver
1811 tmpfile TMPSH .sh
1812 tmpfile TMPASM .asm
1813
1814 unset -f mktemp
1815
1816 # make sure we can execute files in $TMPDIR
1817 cat > $TMPSH 2>> $logfile <<EOF
1818 #! /bin/sh
1819 EOF
1820 chmod +x $TMPSH >> $logfile 2>&1
1821 if ! $TMPSH >> $logfile 2>&1; then
1822     cat <<EOF
1823 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1824 variable to another directory and make sure that it is not mounted noexec.
1825 EOF
1826     die "Sanity test failed."
1827 fi
1828
1829 filter_cflags=echo
1830 filter_cppflags=echo
1831 filter_asflags=echo
1832
1833 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1834     cc_type=llvm_gcc
1835     cc_version=__VERSION__
1836     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1837     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1838     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1839     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1840     speed_cflags='-O3'
1841     size_cflags='-Os'
1842 elif $cc -v 2>&1 | grep -qi ^gcc; then
1843     cc_type=gcc
1844     cc_version=__VERSION__
1845     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1846     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1847     if ! $cc -dumpversion | grep -q '^2\.'; then
1848         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1849         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1850     fi
1851     speed_cflags='-O3'
1852     size_cflags='-Os'
1853 elif $cc --version 2>/dev/null | grep -q Intel; then
1854     cc_type=icc
1855     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1856     cc_ident=$($cc --version | head -n1)
1857     icc_version=$($cc -dumpversion)
1858     CC_DEPFLAGS='-MMD'
1859     AS_DEPFLAGS='-MMD'
1860     speed_cflags='-O3'
1861     size_cflags='-Os'
1862     noopt_cflags='-O1'
1863 elif $cc -v 2>&1 | grep -q xlc; then
1864     cc_type=xlc
1865     cc_version="AV_STRINGIFY(__IBMC__)"
1866     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1867     speed_cflags='-O5'
1868     size_cflags='-O5 -qcompact'
1869 elif $cc -V 2>/dev/null | grep -q Compaq; then
1870     cc_type=ccc
1871     cc_version="AV_STRINGIFY(__DECC_VER)"
1872     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1873     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1874     debuglevel=3
1875     add_ldflags -Wl,-z,now # calls to libots crash without this
1876     speed_cflags='-fast'
1877     size_cflags='-O1'
1878 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1879     test -d "$sysroot" || die "No valid sysroot specified."
1880     cc_type=armcc
1881     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1882     cc_ident=$($cc --vsn | head -n1)
1883     armcc_conf="$PWD/armcc.conf"
1884     $cc --arm_linux_configure                 \
1885         --arm_linux_config_file="$armcc_conf" \
1886         --configure_sysroot="$sysroot"        \
1887         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1888         die "Error creating armcc configuration file."
1889     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1890     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1891     as_default="${cross_prefix}gcc"
1892     CC_DEPFLAGS='-MMD'
1893     AS_DEPFLAGS='-MMD'
1894     speed_cflags='-O3'
1895     size_cflags='-Os'
1896 elif $cc -version 2>/dev/null | grep -q TMS470; then
1897     cc_type=tms470
1898     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1899     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1900     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1901     CC_O='-fr=$(@D)'
1902     as_default="${cross_prefix}gcc"
1903     ld_default="${cross_prefix}gcc"
1904     TMPO=$(basename $TMPC .c).o
1905     append TMPFILES $TMPO
1906     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1907     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1908     AS_DEPFLAGS='-MMD'
1909     speed_cflags='-O3 -mf=5'
1910     size_cflags='-O3 -mf=2'
1911     filter_cflags=tms470_flags
1912     tms470_flags(){
1913         for flag; do
1914             case $flag in
1915                 -march=*|-mcpu=*)
1916                     case "${flag#*=}" in
1917                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1918                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1919                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1920                         armv6*|arm11*)          echo -mv=6   ;;
1921                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1922                                                 echo -mv=5e  ;;
1923                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1924                     esac
1925                     ;;
1926                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1927                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1928                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1929                 -msoft-float)   echo --float_support=vfplib       ;;
1930                 -O[0-3]|-mf=*)  echo $flag                        ;;
1931                 -g)             echo -g -mn                       ;;
1932                 -pds=*)         echo $flag                        ;;
1933             esac
1934         done
1935     }
1936 elif $cc -v 2>&1 | grep -q clang; then
1937     cc_type=clang
1938     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1939         cc_version=__clang_version__ || cc_version=__VERSION__
1940     cc_ident=$($cc --version | head -n1)
1941     CC_DEPFLAGS='-MMD'
1942     AS_DEPFLAGS='-MMD'
1943     speed_cflags='-O3'
1944     size_cflags='-Os'
1945 elif $cc -V 2>&1 | grep -q Sun; then
1946     cc_type=suncc
1947     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1948     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1949     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1950     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1951     speed_cflags='-O5'
1952     size_cflags='-O5 -xspace'
1953     filter_cflags=suncc_flags
1954     suncc_flags(){
1955         for flag; do
1956             case $flag in
1957                 -march=*|-mcpu=*)
1958                     case "${flag#*=}" in
1959                         native)                   echo -xtarget=native       ;;
1960                         v9|niagara)               echo -xarch=sparc          ;;
1961                         ultrasparc)               echo -xarch=sparcvis       ;;
1962                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1963                         i586|pentium)             echo -xchip=pentium        ;;
1964                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1965                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1966                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1967                         pentium4*)          echo -xtarget=pentium4           ;;
1968                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1969                         *-sse3)             echo -xarch=sse3                 ;;
1970                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1971                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1972                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1973                         k8|opteron|athlon64|athlon-fx)
1974                                                   echo -xarch=sse2a          ;;
1975                         athlon*)                  echo -xarch=pentium_proa   ;;
1976                     esac
1977                     ;;
1978                 -std=c99)             echo -xc99              ;;
1979                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1980                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1981                 -W*,*)                echo $flag              ;;
1982                 -f*-*|-W*)                                    ;;
1983                 *)                    echo $flag              ;;
1984             esac
1985         done
1986     }
1987 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1988     cc_type=pathscale
1989     cc_version=__PATHSCALE__
1990     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1991     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1992     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1993     speed_cflags='-O2'
1994     size_cflags='-Os'
1995 elif $cc -v 2>&1 | grep -q Open64; then
1996     cc_type=open64
1997     cc_version=__OPEN64__
1998     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1999     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2000     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2001     speed_cflags='-O2'
2002     size_cflags='-Os'
2003 fi
2004
2005 test -n "$cc_type" && enable $cc_type ||
2006     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2007
2008 : ${as_default:=$cc}
2009 : ${dep_cc_default:=$cc}
2010 : ${ld_default:=$cc}
2011 set_default ar as dep_cc ld
2012
2013 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2014 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2015
2016 add_cflags $extra_cflags
2017 add_asflags $extra_cflags
2018
2019 if test -n "$sysroot"; then
2020     case "$cc_type" in
2021         gcc|llvm_gcc)
2022             add_cppflags --sysroot="$sysroot"
2023             add_ldflags --sysroot="$sysroot"
2024         ;;
2025         tms470)
2026             add_cppflags -I"$sysinclude"
2027             add_ldflags  --sysroot="$sysroot"
2028         ;;
2029         clang)
2030             add_cppflags -isysroot "$sysroot"
2031             add_ldflags -isysroot "$sysroot"
2032         ;;
2033     esac
2034 fi
2035
2036 if test "$cpu" = host; then
2037     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2038
2039     case "$cc_type" in
2040         gcc|llvm_gcc)
2041             check_native(){
2042                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2043                 sed -n "/$1=/{
2044                             s/.*$1=\\([^ ]*\\).*/\\1/
2045                             p
2046                             q
2047                         }" $TMPE
2048             }
2049             cpu=$(check_native -march || check_native -mcpu)
2050         ;;
2051     esac
2052
2053     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2054 fi
2055
2056 # Deal with common $arch aliases
2057 case "$arch" in
2058     arm*)
2059         arch="arm"
2060     ;;
2061     mips|mipsel|IP*)
2062         arch="mips"
2063     ;;
2064     mips64*)
2065         arch="mips"
2066         subarch="mips64"
2067     ;;
2068     parisc|hppa)
2069         arch="parisc"
2070     ;;
2071     parisc64|hppa64)
2072         arch="parisc"
2073         subarch="parisc64"
2074     ;;
2075     "Power Macintosh"|ppc|powerpc)
2076         arch="ppc"
2077     ;;
2078     ppc64|powerpc64)
2079         arch="ppc"
2080         subarch="ppc64"
2081     ;;
2082     s390|s390x)
2083         arch="s390"
2084     ;;
2085     sh4|sh)
2086         arch="sh4"
2087     ;;
2088     sun4u|sparc64)
2089         arch="sparc"
2090         subarch="sparc64"
2091     ;;
2092     i[3-6]86|i86pc|BePC|x86_64|amd64)
2093         arch="x86"
2094     ;;
2095 esac
2096
2097 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2098 enable $arch
2099
2100 # Add processor-specific flags
2101 if test "$cpu" = generic; then
2102     : do nothing
2103 elif enabled ppc; then
2104
2105     case $(tolower $cpu) in
2106         601|ppc601|powerpc601)
2107             cpuflags="-mcpu=601"
2108             disable altivec
2109         ;;
2110         603*|ppc603*|powerpc603*)
2111             cpuflags="-mcpu=603"
2112             disable altivec
2113         ;;
2114         604*|ppc604*|powerpc604*)
2115             cpuflags="-mcpu=604"
2116             disable altivec
2117         ;;
2118         g3|75*|ppc75*|powerpc75*)
2119             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2120             disable altivec
2121         ;;
2122         g4|745*|ppc745*|powerpc745*)
2123             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2124         ;;
2125         74*|ppc74*|powerpc74*)
2126             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2127         ;;
2128         g5|970|ppc970|powerpc970|power4*)
2129             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2130         ;;
2131         cell)
2132             cpuflags="-mcpu=cell"
2133             enable ldbrx
2134         ;;
2135         e500v2)
2136             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2137             disable altivec
2138         ;;
2139         e500)
2140             cpuflags="-mcpu=8540 -mhard-float"
2141             disable altivec
2142         ;;
2143     esac
2144
2145 elif enabled x86; then
2146
2147     case $cpu in
2148         i[345]86|pentium)
2149             cpuflags="-march=$cpu"
2150             disable mmx
2151         ;;
2152         # targets that do NOT support conditional mov (cmov)
2153         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2154             cpuflags="-march=$cpu"
2155             disable cmov
2156         ;;
2157         # targets that do support conditional mov (cmov)
2158         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2159             cpuflags="-march=$cpu"
2160             enable cmov
2161             enable fast_cmov
2162         ;;
2163         # targets that do support conditional mov but on which it's slow
2164         pentium4|pentium4m|prescott|nocona)
2165             cpuflags="-march=$cpu"
2166             enable cmov
2167             disable fast_cmov
2168         ;;
2169     esac
2170
2171 elif enabled sparc; then
2172
2173     case $cpu in
2174         niagara)
2175             cpuflags="-mcpu=$cpu"
2176             disable vis
2177         ;;
2178         sparc64)
2179             cpuflags="-mcpu=v9"
2180         ;;
2181     esac
2182
2183 elif enabled arm; then
2184
2185     case $cpu in
2186         armv*)
2187             cpuflags="-march=$cpu"
2188             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2189         ;;
2190         *)
2191             cpuflags="-mcpu=$cpu"
2192             case $cpu in
2193                 cortex-a*)                               subarch=armv7a  ;;
2194                 cortex-r*)                               subarch=armv7r  ;;
2195                 cortex-m*)                               subarch=armv7m  ;;
2196                 arm11*)                                  subarch=armv6   ;;
2197                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2198                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2199             esac
2200         ;;
2201     esac
2202
2203 elif enabled alpha; then
2204
2205     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2206
2207 elif enabled bfin; then
2208
2209     cpuflags="-mcpu=$cpu"
2210
2211 elif enabled mips; then
2212
2213     cpuflags="-march=$cpu"
2214
2215 elif enabled avr32; then
2216
2217     case $cpu in
2218         ap7[02]0[0-2])
2219             subarch="avr32_ap"
2220             cpuflags="-mpart=$cpu"
2221         ;;
2222         ap)
2223             subarch="avr32_ap"
2224             cpuflags="-march=$cpu"
2225         ;;
2226         uc3[ab]*)
2227             subarch="avr32_uc"
2228             cpuflags="-mcpu=$cpu"
2229         ;;
2230         uc)
2231             subarch="avr32_uc"
2232             cpuflags="-march=$cpu"
2233         ;;
2234     esac
2235
2236 fi
2237
2238 add_cflags $cpuflags
2239 add_asflags $cpuflags
2240
2241 # compiler sanity check
2242 check_exec <<EOF
2243 int main(void){ return 0; }
2244 EOF
2245 if test "$?" != 0; then
2246     echo "$cc is unable to create an executable file."
2247     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2248         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2249         echo "Only do this if you know what cross compiling means."
2250     fi
2251     die "C compiler test failed."
2252 fi
2253
2254 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2255 check_cflags -std=c99
2256 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2257 #include <stdlib.h>
2258 EOF
2259 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2260 #include <stdlib.h>
2261 EOF
2262
2263 check_host_cflags -std=c99
2264
2265 case "$arch" in
2266     alpha|ia64|mips|parisc|sparc)
2267         spic=$shared
2268     ;;
2269     x86)
2270         subarch="x86_32"
2271         check_cc <<EOF && subarch="x86_64"
2272         int test[(int)sizeof(char*) - 7];
2273 EOF
2274         if test "$subarch" = "x86_64"; then
2275             spic=$shared
2276         fi
2277     ;;
2278 esac
2279
2280 enable $subarch
2281 enabled spic && enable pic
2282
2283 # OS specific
2284 case $target_os in
2285     haiku)
2286         prefix_default="/boot/common"
2287         network_extralibs="-lnetwork"
2288         ;;
2289     sunos)
2290         FFSERVERLDFLAGS=""
2291         SHFLAGS='-shared -Wl,-h,$$(@F)'
2292         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2293         network_extralibs="-lsocket -lnsl"
2294         add_cppflags -D__EXTENSIONS__
2295         nm_opts='-P -g'
2296         ;;
2297     netbsd)
2298         oss_indev_extralibs="-lossaudio"
2299         oss_outdev_extralibs="-lossaudio"
2300         add_cppflags -D_XOPEN_SOURCE=600
2301         ;;
2302     openbsd)
2303         enable malloc_aligned
2304         # On OpenBSD 4.5. the compiler does not use PIC unless
2305         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2306         # however the generated executable will not do anything
2307         # (simply quits with exit-code 1, no crash, no output).
2308         # Thus explicitly enable PIC here.
2309         enable pic
2310         SHFLAGS='-shared'
2311         oss_indev_extralibs="-lossaudio"
2312         oss_outdev_extralibs="-lossaudio"
2313         ;;
2314     freebsd|dragonfly)
2315         enable malloc_aligned
2316         ;;
2317     bsd/os)
2318         add_extralibs -lpoll -lgnugetopt
2319         strip="strip -d"
2320         ;;
2321     darwin)
2322         enable malloc_aligned
2323         gas="gas-preprocessor.pl $cc"
2324         enabled ppc && add_asflags -force_cpusubtype_ALL
2325         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2326         strip="${strip} -x"
2327         add_ldflags -Wl,-dynamic,-search_paths_first
2328         SLIBSUF=".dylib"
2329         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2330         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2331         FFSERVERLDFLAGS=-Wl,-bind_at_load
2332         objformat="macho"
2333         enabled x86_64 && objformat="macho64"
2334         enabled_any pic shared ||
2335             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2336         ;;
2337     mingw32*)
2338         if test $target_os = "mingw32ce"; then
2339             disable network
2340         else
2341             target_os=mingw32
2342         fi
2343         LIBTARGET=i386
2344         if enabled x86_64; then
2345             enable malloc_aligned
2346             LIBTARGET=x64
2347         elif enabled arm; then
2348             LIBTARGET=arm
2349         fi
2350         shlibdir_default="$bindir_default"
2351         disable ffserver
2352         SLIBPREF=""
2353         SLIBSUF=".dll"
2354         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2355         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2356         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2357         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2358             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2359             install -d "$(LIBDIR)"; \
2360             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2361         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2362         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'
2363         objformat="win32"
2364         enable dos_paths
2365         check_cflags -fno-common
2366         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2367                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2368                 die "ERROR: MinGW runtime version must be >= 3.15."
2369         ;;
2370     cygwin*)
2371         target_os=cygwin
2372         shlibdir_default="$bindir_default"
2373         SLIBPREF="cyg"
2374         SLIBSUF=".dll"
2375         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2376         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2377         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2378         objformat="win32"
2379         enable dos_paths
2380         check_cflags -fno-common
2381         ;;
2382     *-dos|freedos|opendos)
2383         disable ffplay ffserver
2384         disable $INDEV_LIST $OUTDEV_LIST
2385         network_extralibs="-lsocket"
2386         objformat="coff"
2387         enable dos_paths
2388         ;;
2389     linux)
2390         enable dv1394
2391         ;;
2392     irix*)
2393         target_os=irix
2394         ranlib="echo ignoring ranlib"
2395         ;;
2396     os/2*)
2397         strip="lxlite"
2398         ln_s="cp -f"
2399         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2400         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2401         FFSERVERLDFLAGS=""
2402         LIBSUF="_s.a"
2403         SLIBPREF=""
2404         SLIBSUF=".dll"
2405         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2406         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2407         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2408           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2409           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2410           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2411           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2412           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2413         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2414           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2415         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2416         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2417         enable dos_paths
2418         ;;
2419     gnu/kfreebsd)
2420         ;;
2421     gnu)
2422         ;;
2423     none)
2424         ;;
2425     *)
2426         die "Unknown OS '$target_os'."
2427         ;;
2428 esac
2429
2430 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2431
2432 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2433
2434 set_default $PATHS_LIST
2435
2436 # we need to build at least one lib type
2437 if ! enabled_any static shared; then
2438     cat <<EOF
2439 At least one library type must be built.
2440 Specify --enable-static to build the static libraries or --enable-shared to
2441 build the shared libraries as well. To only build the shared libraries specify
2442 --disable-static in addition to --enable-shared.
2443 EOF
2444     exit 1;
2445 fi
2446
2447 disabled static && LIBNAME=""
2448
2449 die_license_disabled() {
2450     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2451 }
2452
2453 die_license_disabled gpl libx264
2454 die_license_disabled gpl libxavs
2455 die_license_disabled gpl libxvid
2456 die_license_disabled gpl postproc
2457 die_license_disabled gpl x11grab
2458
2459 die_license_disabled nonfree libfaac
2460
2461 die_license_disabled version3 libopencore_amrnb
2462 die_license_disabled version3 libopencore_amrwb
2463
2464 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2465
2466 check_deps $ARCH_EXT_LIST
2467
2468 disabled optimizations || check_cflags -fomit-frame-pointer
2469
2470 enable_pic() {
2471     enable pic
2472     add_cppflags -DPIC
2473     add_cflags   -fPIC
2474     add_asflags  -fPIC
2475 }
2476
2477 enabled pic && enable_pic
2478
2479 check_cc <<EOF || die "Symbol mangling check failed."
2480 int ff_extern;
2481 EOF
2482 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2483 extern_prefix=${sym%%ff_extern*}
2484
2485 check_cc <<EOF && enable inline_asm
2486 void foo(void) { __asm__ volatile ("" ::); }
2487 EOF
2488
2489 _restrict=
2490 for restrict_keyword in restrict __restrict__ __restrict; do
2491     check_cc <<EOF && _restrict=$restrict_keyword && break
2492 void foo(char * $restrict_keyword p);
2493 EOF
2494 done
2495
2496 check_cc <<EOF && enable attribute_packed
2497 struct { int x; } __attribute__((packed)) x;
2498 EOF
2499
2500 check_cc <<EOF && enable attribute_may_alias
2501 union { int x; } __attribute__((may_alias)) x;
2502 EOF
2503
2504 check_cc <<EOF || die "endian test failed"
2505 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2506 EOF
2507 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2508
2509 if enabled alpha; then
2510
2511     check_cflags -mieee
2512
2513 elif enabled arm; then
2514
2515     check_cflags -marm
2516     nogas=die
2517
2518     check_ld <<EOF && enable vfp_args
2519 __asm__ (".eabi_attribute 28, 1");
2520 int main(void) { return 0; }
2521 EOF
2522
2523     # We have to check if pld is a nop and disable it.
2524     check_asm pld '"pld [r0]"'
2525
2526     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2527     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2528     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2529     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2530     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2531     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2532
2533     enabled_all armv6t2 shared !pic && enable_pic
2534
2535 elif enabled mips; then
2536
2537     check_asm loongson '"dmult.g $1, $2, $3"'
2538     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2539
2540 elif enabled ppc; then
2541
2542     enable local_aligned_8 local_aligned_16
2543
2544     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2545     check_asm ibm_asm   '"add 0, 0, 0"'
2546     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2547     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2548
2549     # AltiVec flags: The FSF version of GCC differs from the Apple version
2550     if enabled altivec; then
2551         nogas=warn
2552         check_cflags -maltivec -mabi=altivec &&
2553         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2554         check_cflags -faltivec
2555
2556         # check if our compiler supports Motorola AltiVec C API
2557         check_cc <<EOF || disable altivec
2558 $inc_altivec_h
2559 int main(void) {
2560     vector signed int v1, v2, v3;
2561     v1 = vec_add(v2,v3);
2562     return 0;
2563 }
2564 EOF
2565
2566         # check if our compiler supports braces for vector declarations
2567         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2568 $inc_altivec_h
2569 int main (void) { (vector int) {1}; return 0; }
2570 EOF
2571     fi
2572
2573 elif enabled sparc; then
2574
2575     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2576         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2577
2578 elif enabled x86; then
2579
2580     enable local_aligned_8 local_aligned_16
2581
2582     # check whether EBP is available on x86
2583     # As 'i' is stored on the stack, this program will crash
2584     # if the base pointer is used to access it because the
2585     # base pointer is cleared in the inline assembly code.
2586     check_exec_crash <<EOF && enable ebp_available
2587     volatile int i=0;
2588     __asm__ volatile (
2589         "xorl %%ebp, %%ebp"
2590     ::: "%ebp");
2591     return i;
2592 EOF
2593
2594     # check whether EBX is available on x86
2595     check_asm ebx_available '""::"b"(0)' &&
2596         check_asm ebx_available '"":::"%ebx"'
2597
2598     # check whether xmm clobbers are supported
2599     check_asm xmm_clobbers '"":::"%xmm0"'
2600
2601     # check whether more than 10 operands are supported
2602     check_cc <<EOF && enable ten_operands
2603 int main(void) {
2604     int x=0;
2605     __asm__ volatile(
2606         ""
2607         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2608     );
2609     return 0;
2610 }
2611 EOF
2612
2613     # check whether binutils is new enough to compile SSSE3/MMX2
2614     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2615     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2616
2617     check_asm bswap '"bswap %%eax" ::: "%eax"'
2618
2619     if ! disabled_any asm mmx yasm; then
2620         if check_cmd $yasmexe --version; then
2621             enabled x86_64 && yasm_extra="-m amd64"
2622             yasm_debug="-g dwarf2"
2623         elif check_cmd nasm -v; then
2624             yasmexe=nasm
2625             yasm_debug="-g -F dwarf"
2626             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2627         fi
2628
2629         YASMFLAGS="-f $objformat $yasm_extra"
2630         enabled pic               && append YASMFLAGS "-DPIC"
2631         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2632         case "$objformat" in
2633             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2634         esac
2635
2636         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2637             die "yasm not found, use --disable-yasm for a crippled build"
2638     fi
2639
2640     case "$cpu" in
2641         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2642             disable fast_clz
2643         ;;
2644     esac
2645
2646 fi
2647
2648 if enabled asm; then
2649     as=${gas:=$as}
2650     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2651         $nogas "GNU assembler not found, install gas-preprocessor"
2652 fi
2653
2654 if check_func dlopen; then
2655     ldl=
2656 elif check_func dlopen -ldl; then
2657     ldl=-ldl
2658 fi
2659
2660 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2661 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2662
2663 check_func  fcntl
2664 check_func  fork
2665 check_func  getaddrinfo $network_extralibs
2666 check_func  gethrtime
2667 check_func  getrusage
2668 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2669 check_func  inet_aton $network_extralibs
2670 check_func  isatty
2671 check_func  ${malloc_prefix}memalign            && enable memalign
2672 check_func  mkstemp
2673 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2674 check_func  setrlimit
2675 check_func  strerror_r
2676 check_func  strtok_r
2677 check_func_headers io.h setmode
2678 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2679 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2680 check_func_headers windows.h GetProcessTimes
2681 check_func_headers windows.h VirtualAlloc
2682
2683 check_header conio.h
2684 check_header dlfcn.h
2685 check_header dxva2api.h
2686 check_header malloc.h
2687 check_header poll.h
2688 check_header sys/mman.h
2689 check_header sys/resource.h
2690 check_header sys/select.h
2691 check_header termios.h
2692 check_header vdpau/vdpau.h
2693 check_header vdpau/vdpau_x11.h
2694 check_header X11/extensions/XvMClib.h
2695
2696 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2697
2698 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2699      enabled_any $need_memalign ; then
2700     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2701 fi
2702
2703 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2704 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2705
2706 # check for some common methods of building with pthread support
2707 # do this before the optional library checks as some of them require pthreads
2708 if ! disabled pthreads && ! enabled w32threads; then
2709     enable pthreads
2710     if check_func pthread_create; then
2711         :
2712     elif check_func pthread_create -pthread; then
2713         add_cflags -pthread
2714         add_extralibs -pthread
2715     elif check_func pthread_create -pthreads; then
2716         add_cflags -pthreads
2717         add_extralibs -pthreads
2718     elif check_func pthread_create -lpthreadGC2; then
2719         add_extralibs -lpthreadGC2
2720     elif ! check_lib pthread.h pthread_create -lpthread; then
2721         disable pthreads
2722     fi
2723 fi
2724
2725 for thread in $THREADS_LIST; do
2726     if enabled $thread; then
2727         test -n "$thread_type" &&
2728             die "ERROR: Only one thread type must be selected." ||
2729             thread_type="$thread"
2730     fi
2731 done
2732
2733 check_lib math.h sin -lm
2734 disabled vaapi || check_lib va/va.h vaInitialize -lva
2735
2736 check_mathfunc exp2
2737 check_mathfunc exp2f
2738 check_mathfunc llrint
2739 check_mathfunc llrintf
2740 check_mathfunc log2
2741 check_mathfunc log2f
2742 check_mathfunc lrint
2743 check_mathfunc lrintf
2744 check_mathfunc round
2745 check_mathfunc roundf
2746 check_mathfunc truncf
2747
2748 # these are off by default, so fail if requested and not available
2749 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2750 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2751 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2752                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2753                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2754 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2755 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2756 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2757 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2758 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2759 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2760 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2761                         die "ERROR: libopencv not found"; }
2762 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2763 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2764                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2765 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2766                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2767 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2768 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2769 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2770 enabled libvpx     && {
2771     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2772                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2773     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2774                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2775 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2776                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2777                         die "ERROR: libx264 version must be >= 0.99."; }
2778 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2779 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2780 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2781
2782 # libdc1394 check
2783 if enabled libdc1394; then
2784     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2785         enable libdc1394_2; } ||
2786     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2787         enable libdc1394_1; } ||
2788     die "ERROR: No version of libdc1394 found "
2789 fi
2790
2791 SDL_CONFIG="${cross_prefix}sdl-config"
2792 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2793     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2794     sdl_libs=$("${SDL_CONFIG}" --libs)
2795     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2796     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2797     enable sdl &&
2798     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2799 fi
2800
2801 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2802
2803 if enabled network; then
2804     check_type "sys/types.h sys/socket.h" socklen_t
2805     check_type netdb.h "struct addrinfo"
2806     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2807     check_type netinet/in.h "struct sockaddr_in6"
2808     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2809     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2810     # Prefer arpa/inet.h over winsock2
2811     if check_header arpa/inet.h ; then
2812         check_func closesocket
2813     elif check_header winsock2.h ; then
2814         check_func_headers winsock2.h closesocket -lws2 && \
2815             network_extralibs="-lws2" || \
2816         { check_func_headers winsock2.h closesocket -lws2_32 && \
2817             network_extralibs="-lws2_32"; }
2818         check_type ws2tcpip.h socklen_t
2819         check_type ws2tcpip.h "struct addrinfo"
2820         check_type ws2tcpip.h "struct ipv6_mreq"
2821         check_type ws2tcpip.h "struct sockaddr_in6"
2822         check_type ws2tcpip.h "struct sockaddr_storage"
2823         check_struct winsock2.h "struct sockaddr" sa_len
2824     else
2825         disable network
2826     fi
2827 fi
2828
2829 check_header linux/videodev.h
2830 check_header linux/videodev2.h
2831 check_header sys/videoio.h
2832
2833 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2834 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2835 # w32api 3.12 had it defined wrong
2836 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2837
2838 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2839 { check_header dev/bktr/ioctl_meteor.h &&
2840   check_header dev/bktr/ioctl_bt848.h; } ||
2841 { check_header machine/ioctl_meteor.h &&
2842   check_header machine/ioctl_bt848.h; } ||
2843 { check_header dev/video/meteor/ioctl_meteor.h &&
2844   check_header dev/video/bktr/ioctl_bt848.h; } ||
2845 check_header dev/ic/bt8xx.h
2846
2847 check_header sys/soundcard.h
2848 check_header soundcard.h
2849
2850 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2851
2852 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2853
2854 enabled x11grab                         &&
2855 check_header X11/Xlib.h                 &&
2856 check_header X11/extensions/XShm.h      &&
2857 check_header X11/extensions/Xfixes.h    &&
2858 check_func XOpenDisplay -lX11           &&
2859 check_func XShmCreateImage -lX11 -lXext &&
2860 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2861
2862 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2863 check_cpp_condition \
2864     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2865     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2866       disable vdpau; }
2867 fi
2868
2869 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2870
2871 # add some useful compiler flags if supported
2872 check_cflags -Wdeclaration-after-statement
2873 check_cflags -Wall
2874 check_cflags -Wno-parentheses
2875 check_cflags -Wno-switch
2876 check_cflags -Wdisabled-optimization
2877 check_cflags -Wpointer-arith
2878 check_cflags -Wredundant-decls
2879 check_cflags -Wno-pointer-sign
2880 check_cflags -Wcast-qual
2881 check_cflags -Wwrite-strings
2882 check_cflags -Wtype-limits
2883 check_cflags -Wundef
2884 check_cflags -Wmissing-prototypes
2885 enabled extra_warnings && check_cflags -Winline
2886
2887 # add some linker flags
2888 check_ldflags -Wl,--warn-common
2889 check_ldflags -Wl,--as-needed
2890 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'
2891 check_ldflags -Wl,-Bsymbolic
2892
2893 echo "X{};" > $TMPV
2894 if test_ldflags -Wl,--version-script,$TMPV; then
2895     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2896     check_cc <<EOF && enable symver_asm_label
2897 void ff_foo(void) __asm__ ("av_foo@VERSION");
2898 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2899 EOF
2900     check_cc <<EOF && enable symver_gnu_asm
2901 __asm__(".symver ff_foo,av_foo@VERSION");
2902 void ff_foo(void) {}
2903 EOF
2904 fi
2905
2906 if enabled small; then
2907     add_cflags $size_cflags
2908     optimizations="small"
2909 elif enabled optimizations; then
2910     add_cflags $speed_cflags
2911 else
2912     add_cflags $noopt_cflags
2913 fi
2914 check_cflags -fno-math-errno
2915 check_cflags -fno-signed-zeros
2916
2917 if enabled icc; then
2918     # Just warnings, no remarks
2919     check_cflags -w1
2920     # -wd: Disable following warnings
2921     # 144, 167, 556: -Wno-pointer-sign
2922     # 10006: ignoring unknown option -fno-signed-zeros
2923     # 10148: ignoring unknown option -Wno-parentheses
2924     # 10156: ignoring option '-W'; no argument required
2925     check_cflags -wd144,167,556,10006,10148,10156
2926     # 11030: Warning unknown option --as-needed
2927     # 10156: ignoring option '-export'; no argument required
2928     check_ldflags -wd10156,11030
2929     # Allow to compile with optimizations
2930     check_ldflags -march=$cpu
2931     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2932     enable ebp_available
2933     if enabled x86_32; then
2934         test ${icc_version%%.*} -ge 11 && \
2935             check_cflags -falign-stack=maintain-16-byte || \
2936             disable aligned_stack
2937     fi
2938 elif enabled ccc; then
2939     # disable some annoying warnings
2940     add_cflags -msg_disable cvtu32to64
2941     add_cflags -msg_disable embedcomment
2942     add_cflags -msg_disable needconstext
2943     add_cflags -msg_disable nomainieee
2944     add_cflags -msg_disable ptrmismatch1
2945     add_cflags -msg_disable unreachcode
2946 elif enabled gcc; then
2947     check_cflags -fno-tree-vectorize
2948     check_cflags -Werror=implicit-function-declaration
2949     check_cflags -Werror=missing-prototypes
2950 elif enabled llvm_gcc; then
2951     check_cflags -mllvm -stack-alignment=16
2952 elif enabled clang; then
2953     check_cflags -mllvm -stack-alignment=16
2954     check_cflags -Qunused-arguments
2955 elif enabled armcc; then
2956     # 2523: use of inline assembler is deprecated
2957     add_cflags -W${armcc_opt},--diag_suppress=2523
2958     add_cflags -W${armcc_opt},--diag_suppress=1207
2959 elif enabled tms470; then
2960     add_cflags -pds=824 -pds=837
2961 fi
2962
2963 enabled_any $THREADS_LIST      && enable threads
2964
2965 check_deps $CONFIG_LIST       \
2966            $CONFIG_EXTRA      \
2967            $HAVE_LIST         \
2968            $DECODER_LIST      \
2969            $ENCODER_LIST      \
2970            $HWACCEL_LIST      \
2971            $PARSER_LIST       \
2972            $BSF_LIST          \
2973            $DEMUXER_LIST      \
2974            $MUXER_LIST        \
2975            $FILTER_LIST       \
2976            $INDEV_LIST        \
2977            $OUTDEV_LIST       \
2978            $PROTOCOL_LIST     \
2979            $ACODEC_TESTS      \
2980            $VCODEC_TESTS      \
2981            $LAVF_TESTS        \
2982            $LAVFI_TESTS       \
2983            $SEEK_TESTS        \
2984
2985 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2986
2987 echo "install prefix            $prefix"
2988 echo "source path               $source_path"
2989 echo "C compiler                $cc"
2990 echo "ARCH                      $arch ($cpu)"
2991 if test "$build_suffix" != ""; then
2992     echo "build suffix              $build_suffix"
2993 fi
2994 if test "$extra_version" != ""; then
2995     echo "version string suffix     $extra_version"
2996 fi
2997 echo "big-endian                ${bigendian-no}"
2998 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2999 if enabled x86; then
3000     echo "yasm                      ${yasm-no}"
3001     echo "MMX enabled               ${mmx-no}"
3002     echo "MMX2 enabled              ${mmx2-no}"
3003     echo "3DNow! enabled            ${amd3dnow-no}"
3004     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3005     echo "SSE enabled               ${sse-no}"
3006     echo "SSSE3 enabled             ${ssse3-no}"
3007     echo "CMOV enabled              ${cmov-no}"
3008     echo "CMOV is fast              ${fast_cmov-no}"
3009     echo "EBX available             ${ebx_available-no}"
3010     echo "EBP available             ${ebp_available-no}"
3011     echo "10 operands supported     ${ten_operands-no}"
3012 fi
3013 if enabled arm; then
3014     echo "ARMv5TE enabled           ${armv5te-no}"
3015     echo "ARMv6 enabled             ${armv6-no}"
3016     echo "ARMv6T2 enabled           ${armv6t2-no}"
3017     echo "ARM VFP enabled           ${armvfp-no}"
3018     echo "IWMMXT enabled            ${iwmmxt-no}"
3019     echo "NEON enabled              ${neon-no}"
3020 fi
3021 if enabled mips; then
3022     echo "MMI enabled               ${mmi-no}"
3023 fi
3024 if enabled ppc; then
3025     echo "AltiVec enabled           ${altivec-no}"
3026     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3027     echo "dcbzl available           ${dcbzl-no}"
3028 fi
3029 if enabled sparc; then
3030     echo "VIS enabled               ${vis-no}"
3031 fi
3032 echo "debug symbols             ${debug-no}"
3033 echo "strip symbols             ${stripping-no}"
3034 echo "optimizations             ${optimizations-no}"
3035 echo "static                    ${static-no}"
3036 echo "shared                    ${shared-no}"
3037 echo "postprocessing support    ${postproc-no}"
3038 echo "new filter support        ${avfilter-no}"
3039 echo "network support           ${network-no}"
3040 echo "threading support         ${thread_type-no}"
3041 echo "SDL support               ${sdl-no}"
3042 echo "Sun medialib support      ${mlib-no}"
3043 echo "AVISynth enabled          ${avisynth-no}"
3044 echo "frei0r enabled            ${frei0r-no}"
3045 echo "libdc1394 support         ${libdc1394-no}"
3046 echo "libdirac enabled          ${libdirac-no}"
3047 echo "libfaac enabled           ${libfaac-no}"
3048 echo "libgsm enabled            ${libgsm-no}"
3049 echo "libmp3lame enabled        ${libmp3lame-no}"
3050 echo "libnut enabled            ${libnut-no}"
3051 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3052 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3053 echo "libopencv support         ${libopencv-no}"
3054 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3055 echo "librtmp enabled           ${librtmp-no}"
3056 echo "libschroedinger enabled   ${libschroedinger-no}"
3057 echo "libspeex enabled          ${libspeex-no}"
3058 echo "libtheora enabled         ${libtheora-no}"
3059 echo "libvorbis enabled         ${libvorbis-no}"
3060 echo "libvpx enabled            ${libvpx-no}"
3061 echo "libx264 enabled           ${libx264-no}"
3062 echo "libxavs enabled           ${libxavs-no}"
3063 echo "libxvid enabled           ${libxvid-no}"
3064 echo "zlib enabled              ${zlib-no}"
3065 echo "bzlib enabled             ${bzlib-no}"
3066 echo
3067
3068 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3069     echo "Enabled ${type}s:"
3070     eval list=\$$(toupper $type)_LIST
3071     print_enabled '_*' $list | sort | pr -3 -t
3072     echo
3073 done
3074
3075 license="LGPL version 2.1 or later"
3076 if enabled nonfree; then
3077     license="nonfree and unredistributable"
3078 elif enabled gplv3; then
3079     license="GPL version 3 or later"
3080 elif enabled lgplv3; then
3081     license="LGPL version 3 or later"
3082 elif enabled gpl; then
3083     license="GPL version 2 or later"
3084 fi
3085
3086 echo "License: $license"
3087
3088 echo "Creating config.mak and config.h..."
3089
3090 # build tree in object directory if source path is different from current one
3091 if enabled source_path_used; then
3092     DIRS="
3093         doc
3094         libavcodec
3095         libavcodec/$arch
3096         libavcore
3097         libavdevice
3098         libavfilter
3099         libavfilter/$arch
3100         libavformat
3101         libavutil
3102         libavutil/$arch
3103         libpostproc
3104         libswscale
3105         libswscale/$arch
3106         tests
3107         tools
3108     "
3109     FILES="
3110         Makefile
3111         common.mak
3112         subdir.mak
3113         doc/texi2pod.pl
3114         libavcodec/Makefile
3115         libavcodec/${arch}/Makefile
3116         libavcore/Makefile
3117         libavdevice/Makefile
3118         libavfilter/Makefile
3119         libavfilter/${arch}/Makefile
3120         libavformat/Makefile
3121         libavutil/Makefile
3122         libpostproc/Makefile
3123         libswscale/Makefile
3124     "
3125     map 'mkdir -p $v' $DIRS;
3126     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3127 fi
3128
3129 enabled stripping || strip="echo skipping strip"
3130
3131 config_files="$TMPH config.mak"
3132
3133 cat > config.mak <<EOF
3134 # Automatically generated by configure - do not modify!
3135 ifndef FFMPEG_CONFIG_MAK
3136 FFMPEG_CONFIG_MAK=1
3137 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3138 prefix=$prefix
3139 LIBDIR=\$(DESTDIR)$libdir
3140 SHLIBDIR=\$(DESTDIR)$shlibdir
3141 INCDIR=\$(DESTDIR)$incdir
3142 BINDIR=\$(DESTDIR)$bindir
3143 DATADIR=\$(DESTDIR)$datadir
3144 MANDIR=\$(DESTDIR)$mandir
3145 SRC_PATH="$source_path"
3146 SRC_PATH_BARE=$source_path
3147 BUILD_ROOT="$PWD"
3148 CC_IDENT=$cc_ident
3149 ARCH=$arch
3150 CC=$cc
3151 AS=$as
3152 LD=$ld
3153 DEPCC=$dep_cc
3154 YASM=$yasmexe
3155 YASMDEP=$yasmexe
3156 AR=$ar
3157 RANLIB=$ranlib
3158 CP=cp -p
3159 LN_S=$ln_s
3160 STRIP=$strip
3161 CPPFLAGS=$CPPFLAGS
3162 CFLAGS=$CFLAGS
3163 ASFLAGS=$ASFLAGS
3164 CC_O=$CC_O
3165 LDFLAGS=$LDFLAGS
3166 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3167 SHFLAGS=$SHFLAGS
3168 YASMFLAGS=$YASMFLAGS
3169 BUILDSUF=$build_suffix
3170 FULLNAME=$FULLNAME
3171 LIBPREF=$LIBPREF
3172 LIBSUF=$LIBSUF
3173 LIBNAME=$LIBNAME
3174 SLIBPREF=$SLIBPREF
3175 SLIBSUF=$SLIBSUF
3176 EXESUF=$EXESUF
3177 EXTRA_VERSION=$extra_version
3178 DEPFLAGS=$DEPFLAGS
3179 CCDEP=$CCDEP
3180 ASDEP=$ASDEP
3181 CC_DEPFLAGS=$CC_DEPFLAGS
3182 AS_DEPFLAGS=$AS_DEPFLAGS
3183 HOSTCC=$host_cc
3184 HOSTCFLAGS=$host_cflags
3185 HOSTEXESUF=$HOSTEXESUF
3186 HOSTLDFLAGS=$host_ldflags
3187 HOSTLIBS=$host_libs
3188 TARGET_EXEC=$target_exec
3189 TARGET_PATH=$target_path
3190 SDL_LIBS=$sdl_libs
3191 SDL_CFLAGS=$sdl_cflags
3192 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3193 EXTRALIBS=$extralibs
3194 INSTALL=install
3195 LIBTARGET=${LIBTARGET}
3196 SLIBNAME=${SLIBNAME}
3197 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3198 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3199 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3200 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3201 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3202 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3203 SAMPLES=$samples
3204 EOF
3205
3206 get_version(){
3207     name=$1
3208     file=$source_path/$2
3209     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3210     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3211     lcname=$(tolower $name)
3212     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3213     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3214 }
3215
3216 get_version LIBSWSCALE  libswscale/swscale.h
3217 get_version LIBPOSTPROC libpostproc/postprocess.h
3218 get_version LIBAVCODEC  libavcodec/avcodec.h
3219 get_version LIBAVCORE   libavcore/avcore.h
3220 get_version LIBAVDEVICE libavdevice/avdevice.h
3221 get_version LIBAVFORMAT libavformat/avformat.h
3222 get_version LIBAVUTIL   libavutil/avutil.h
3223 get_version LIBAVFILTER libavfilter/avfilter.h
3224
3225 cat > $TMPH <<EOF
3226 /* Automatically generated by configure - do not modify! */
3227 #ifndef FFMPEG_CONFIG_H
3228 #define FFMPEG_CONFIG_H
3229 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3230 #define FFMPEG_LICENSE "$(c_escape $license)"
3231 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3232 #define CC_TYPE "$cc_type"
3233 #define CC_VERSION $cc_version
3234 #define restrict $_restrict
3235 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3236 #define EXTERN_PREFIX "${extern_prefix}"
3237 #define EXTERN_ASM ${extern_prefix}
3238 #define SLIBSUF "$SLIBSUF"
3239 EOF
3240
3241 test -n "$malloc_prefix" &&
3242     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3243
3244 if enabled small || disabled optimizations; then
3245     echo "#undef  av_always_inline"  >> $TMPH
3246     echo "#define av_always_inline"  >> $TMPH
3247 fi
3248
3249 if enabled yasm; then
3250     append config_files $TMPASM
3251     printf '' >$TMPASM
3252 fi
3253
3254 print_config ARCH_   "$config_files" $ARCH_LIST
3255 print_config HAVE_   "$config_files" $HAVE_LIST
3256 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3257                                      $CONFIG_EXTRA      \
3258                                      $DECODER_LIST      \
3259                                      $ENCODER_LIST      \
3260                                      $HWACCEL_LIST      \
3261                                      $PARSER_LIST       \
3262                                      $BSF_LIST          \
3263                                      $DEMUXER_LIST      \
3264                                      $MUXER_LIST        \
3265                                      $FILTER_LIST       \
3266                                      $PROTOCOL_LIST     \
3267                                      $INDEV_LIST        \
3268                                      $OUTDEV_LIST       \
3269
3270 cat >>config.mak <<EOF
3271 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3272 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3273 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3274 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3275 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3276 EOF
3277
3278 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3279 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3280
3281 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3282 cp_if_changed $TMPH config.h
3283 touch .config
3284
3285 enabled yasm && cp_if_changed $TMPASM config.asm
3286
3287 cat > $TMPH <<EOF
3288 /* Generated by ffconf */
3289 #ifndef AVUTIL_AVCONFIG_H
3290 #define AVUTIL_AVCONFIG_H
3291 EOF
3292
3293 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3294
3295 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3296
3297 cp_if_changed $TMPH libavutil/avconfig.h
3298
3299 test -n "$WARNINGS" && printf "\n$WARNINGS"
3300
3301 # build pkg-config files
3302
3303 pkgconfig_generate(){
3304 name=$1
3305 shortname=${name#lib}${build_suffix}
3306 comment=$2
3307 version=$3
3308 libs=$4
3309 requires=$5
3310 enabled ${name#lib} || return 0
3311 cat <<EOF > $name/$name.pc
3312 prefix=$prefix
3313 exec_prefix=\${prefix}
3314 libdir=$libdir
3315 includedir=$incdir
3316
3317 Name: $name
3318 Description: $comment
3319 Version: $version
3320 Requires: $(enabled shared || echo $requires)
3321 Requires.private: $(enabled shared && echo $requires)
3322 Conflicts:
3323 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3324 Libs.private: $(enabled shared && echo $libs)
3325 Cflags: -I\${includedir}
3326 EOF
3327 cat <<EOF > $name/$name-uninstalled.pc
3328 prefix=
3329 exec_prefix=
3330 libdir=\${pcfiledir}
3331 includedir=${source_path}
3332
3333 Name: $name
3334 Description: $comment
3335 Version: $version
3336 Requires: $requires
3337 Conflicts:
3338 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3339 Cflags: -I\${includedir}
3340 EOF
3341 }
3342
3343 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3344 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3345 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3346 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3347 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3348 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3349 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3350 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"