git.sesse.net Git - ffmpeg/blob - 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     runtime_cpudetect
 916     shared
 917     small
 918     sram
 919     static
 920     swscale
 921     swscale_alpha
 922     vaapi
 923     vdpau
 924     version3
 925     x11grab
 926     zlib
 927 "
 928
 929 THREADS_LIST='
 930     pthreads
 931     w32threads
 932 '
 933
 934 ARCH_LIST='
 935     alpha
 936     arm
 937     avr32
 938     avr32_ap
 939     avr32_uc
 940     bfin
 941     ia64
 942     m68k
 943     mips
 944     mips64
 945     parisc
 946     ppc
 947     ppc64
 948     s390
 949     sh4
 950     sparc
 951     sparc64
 952     tomi
 953     x86
 954     x86_32
 955     x86_64
 956 '
 957
 958 ARCH_EXT_LIST='
 959     altivec
 960     amd3dnow
 961     amd3dnowext
 962     armv5te
 963     armv6
 964     armv6t2
 965     armvfp
 966     iwmmxt
 967     mmi
 968     mmx
 969     mmx2
 970     neon
 971     ppc4xx
 972     sse
 973     ssse3
 974     vis
 975 '
 976
 977 HAVE_LIST_PUB='
 978     bigendian
 979     fast_unaligned
 980 '
 981
 982 HAVE_LIST="
 983     $ARCH_EXT_LIST
 984     $HAVE_LIST_PUB
 985     $THREADS_LIST
 986     aligned_stack
 987     alsa_asoundlib_h
 988     altivec_h
 989     arpa_inet_h
 990     attribute_may_alias
 991     attribute_packed
 992     bswap
 993     closesocket
 994     cmov
 995     conio_h
 996     dcbzl
 997     dev_bktr_ioctl_bt848_h
 998     dev_bktr_ioctl_meteor_h
 999     dev_ic_bt8xx_h
1000     dev_video_meteor_ioctl_meteor_h
1001     dev_video_bktr_ioctl_bt848_h
1002     dlfcn_h
1003     dlopen
1004     dos_paths
1005     ebp_available
1006     ebx_available
1007     exp2
1008     exp2f
1009     fast_64bit
1010     fast_clz
1011     fast_cmov
1012     fcntl
1013     fork
1014     getaddrinfo
1015     gethrtime
1016     GetProcessMemoryInfo
1017     GetProcessTimes
1018     getrusage
1019     gnu_as
1020     struct_rusage_ru_maxrss
1021     ibm_asm
1022     inet_aton
1023     inline_asm
1024     isatty
1025     ldbrx
1026     libdc1394_1
1027     libdc1394_2
1028     llrint
1029     llrintf
1030     local_aligned_16
1031     local_aligned_8
1032     log2
1033     log2f
1034     loongson
1035     lrint
1036     lrintf
1037     lzo1x_999_compress
1038     machine_ioctl_bt848_h
1039     machine_ioctl_meteor_h
1040     malloc_h
1041     memalign
1042     mkstemp
1043     pld
1044     posix_memalign
1045     round
1046     roundf
1047     sdl
1048     sdl_video_size
1049     setmode
1050     socklen_t
1051     soundcard_h
1052     poll_h
1053     setrlimit
1054     strerror_r
1055     strtok_r
1056     struct_addrinfo
1057     struct_ipv6_mreq
1058     struct_sockaddr_in6
1059     struct_sockaddr_sa_len
1060     struct_sockaddr_storage
1061     symver
1062     symver_gnu_asm
1063     symver_asm_label
1064     sys_mman_h
1065     sys_resource_h
1066     sys_select_h
1067     sys_soundcard_h
1068     sys_videoio_h
1069     ten_operands
1070     termios_h
1071     threads
1072     truncf
1073     vfp_args
1074     VirtualAlloc
1075     winsock2_h
1076     xform_asm
1077     xmm_clobbers
1078     yasm
1079 "
1080
1081 # options emitted with CONFIG_ prefix but not available on command line
1082 CONFIG_EXTRA="
1083     avutil
1084     gplv3
1085     lgplv3
1086 "
1087
1088 CMDLINE_SELECT="
1089     $ARCH_EXT_LIST
1090     $CONFIG_LIST
1091     $THREADS_LIST
1092     asm
1093     cross_compile
1094     debug
1095     extra_warnings
1096     logging
1097     optimizations
1098     stripping
1099     yasm
1100 "
1101
1102 PATHS_LIST='
1103     bindir
1104     datadir
1105     incdir
1106     libdir
1107     mandir
1108     prefix
1109     shlibdir
1110 '
1111
1112 CMDLINE_SET="
1113     $PATHS_LIST
1114     ar
1115     arch
1116     as
1117     build_suffix
1118     cc
1119     cpu
1120     cross_prefix
1121     dep_cc
1122     extra_version
1123     host_cc
1124     host_cflags
1125     host_ldflags
1126     host_libs
1127     host_os
1128     ld
1129     logfile
1130     malloc_prefix
1131     nm
1132     samples
1133     source_path
1134     strip
1135     sysinclude
1136     sysroot
1137     target_exec
1138     target_os
1139     target_path
1140 "
1141
1142 CMDLINE_APPEND="
1143     extra_cflags
1144 "
1145
1146 # code dependency declarations
1147
1148 # architecture extensions
1149
1150 armv5te_deps="arm"
1151 armv6_deps="arm"
1152 armv6t2_deps="arm"
1153 armvfp_deps="arm"
1154 iwmmxt_deps="arm"
1155 neon_deps="arm"
1156
1157 mmi_deps="mips"
1158
1159 altivec_deps="ppc"
1160 ppc4xx_deps="ppc"
1161
1162 vis_deps="sparc"
1163
1164 x86_64_suggest="cmov fast_cmov"
1165 amd3dnow_deps="mmx"
1166 amd3dnowext_deps="amd3dnow"
1167 mmx_deps="x86"
1168 mmx2_deps="mmx"
1169 sse_deps="mmx"
1170 ssse3_deps="sse"
1171
1172 aligned_stack_if_any="ppc x86"
1173 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1174 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1175 fast_unaligned_if_any="armv6 ppc x86"
1176
1177 need_memalign="altivec neon sse"
1178 inline_asm_deps="!tms470"
1179
1180 symver_if_any="symver_asm_label symver_gnu_asm"
1181
1182 # subsystems
1183 dct_select="rdft"
1184 mdct_select="fft"
1185 rdft_select="fft"
1186
1187 # decoders / encoders / hardware accelerators
1188 aac_decoder_select="mdct rdft"
1189 aac_encoder_select="mdct"
1190 ac3_decoder_select="mdct ac3_parser"
1191 alac_encoder_select="lpc"
1192 amrnb_decoder_select="lsp"
1193 atrac1_decoder_select="mdct"
1194 atrac3_decoder_select="mdct"
1195 binkaudio_dct_decoder_select="mdct rdft dct"
1196 binkaudio_rdft_decoder_select="mdct rdft"
1197 cavs_decoder_select="golomb"
1198 cook_decoder_select="mdct"
1199 cscd_decoder_suggest="zlib"
1200 dca_decoder_select="mdct"
1201 dnxhd_encoder_select="aandct"
1202 dxa_decoder_select="zlib"
1203 eac3_decoder_select="ac3_decoder"
1204 eamad_decoder_select="aandct"
1205 eatgq_decoder_select="aandct"
1206 eatqi_decoder_select="aandct"
1207 ffv1_decoder_select="golomb"
1208 flac_decoder_select="golomb"
1209 flac_encoder_select="golomb lpc"
1210 flashsv_decoder_select="zlib"
1211 flashsv_encoder_select="zlib"
1212 flv_decoder_select="h263_decoder"
1213 flv_encoder_select="h263_encoder"
1214 fraps_decoder_select="huffman"
1215 h261_encoder_select="aandct"
1216 h263_decoder_select="h263_parser"
1217 h263_encoder_select="aandct"
1218 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1219 h263i_decoder_select="h263_decoder"
1220 h263p_encoder_select="h263_encoder"
1221 h264_decoder_select="golomb h264dsp h264pred"
1222 h264_dxva2_hwaccel_deps="dxva2api_h"
1223 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1224 h264_vaapi_hwaccel_select="vaapi"
1225 h264_vdpau_decoder_select="vdpau h264_decoder"
1226 imc_decoder_select="fft mdct"
1227 jpegls_decoder_select="golomb"
1228 jpegls_encoder_select="golomb"
1229 ljpeg_encoder_select="aandct"
1230 loco_decoder_select="golomb"
1231 mjpeg_encoder_select="aandct"
1232 mlp_decoder_select="mlp_parser"
1233 mp1float_decoder_select="dct"
1234 mp2float_decoder_select="dct"
1235 mp3adufloat_decoder_select="dct"
1236 mp3float_decoder_select="dct"
1237 mp3on4float_decoder_select="dct"
1238 mpeg1video_encoder_select="aandct"
1239 mpeg2video_encoder_select="aandct"
1240 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1241 mpeg4_encoder_select="h263_encoder"
1242 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1243 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1244 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1245 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1246 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1247 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1248 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1249 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1250 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1251 msmpeg4v1_decoder_select="h263_decoder"
1252 msmpeg4v1_encoder_select="h263_encoder"
1253 msmpeg4v2_decoder_select="h263_decoder"
1254 msmpeg4v2_encoder_select="h263_encoder"
1255 msmpeg4v3_decoder_select="h263_decoder"
1256 msmpeg4v3_encoder_select="h263_encoder"
1257 nellymoser_decoder_select="mdct"
1258 nellymoser_encoder_select="mdct"
1259 png_decoder_select="zlib"
1260 png_encoder_select="zlib"
1261 qcelp_decoder_select="lsp"
1262 qdm2_decoder_select="mdct rdft"
1263 ra_144_encoder_select="lpc"
1264 rv10_decoder_select="h263_decoder"
1265 rv10_encoder_select="h263_encoder"
1266 rv20_decoder_select="h263_decoder"
1267 rv20_encoder_select="h263_encoder"
1268 rv30_decoder_select="golomb h264pred"
1269 rv40_decoder_select="golomb h264pred"
1270 shorten_decoder_select="golomb"
1271 sipr_decoder_select="lsp"
1272 snow_decoder_select="dwt"
1273 snow_encoder_select="aandct dwt"
1274 sonic_decoder_select="golomb"
1275 sonic_encoder_select="golomb"
1276 sonic_ls_encoder_select="golomb"
1277 svq1_encoder_select="aandct"
1278 svq3_decoder_select="golomb h264dsp h264pred"
1279 svq3_decoder_suggest="zlib"
1280 theora_decoder_select="vp3_decoder"
1281 tiff_decoder_suggest="zlib"
1282 tiff_encoder_suggest="zlib"
1283 truehd_decoder_select="mlp_decoder"
1284 tscc_decoder_select="zlib"
1285 twinvq_decoder_select="mdct lsp"
1286 vc1_decoder_select="h263_decoder"
1287 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1288 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1289 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1290 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1291 vorbis_decoder_select="mdct"
1292 vorbis_encoder_select="mdct"
1293 vp6_decoder_select="huffman"
1294 vp6a_decoder_select="vp6_decoder"
1295 vp6f_decoder_select="vp6_decoder"
1296 vp8_decoder_select="h264pred"
1297 wmapro_decoder_select="mdct"
1298 wmav1_decoder_select="mdct"
1299 wmav1_encoder_select="mdct"
1300 wmav2_decoder_select="mdct"
1301 wmav2_encoder_select="mdct"
1302 wmavoice_decoder_select="lsp rdft dct mdct"
1303 wmv1_decoder_select="h263_decoder"
1304 wmv1_encoder_select="h263_encoder"
1305 wmv2_decoder_select="h263_decoder"
1306 wmv2_encoder_select="h263_encoder"
1307 wmv3_decoder_select="vc1_decoder"
1308 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1309 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1310 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1311 zlib_decoder_select="zlib"
1312 zlib_encoder_select="zlib"
1313 zmbv_decoder_select="zlib"
1314 zmbv_encoder_select="zlib"
1315
1316 vaapi_deps="va_va_h"
1317 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1318
1319 # parsers
1320 h264_parser_select="golomb h264dsp h264pred"
1321
1322 # external libraries
1323 libdirac_decoder_deps="libdirac !libschroedinger"
1324 libdirac_encoder_deps="libdirac"
1325 libfaac_encoder_deps="libfaac"
1326 libgsm_decoder_deps="libgsm"
1327 libgsm_encoder_deps="libgsm"
1328 libgsm_ms_decoder_deps="libgsm"
1329 libgsm_ms_encoder_deps="libgsm"
1330 libmp3lame_encoder_deps="libmp3lame"
1331 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1332 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1333 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1334 libopenjpeg_decoder_deps="libopenjpeg"
1335 libschroedinger_decoder_deps="libschroedinger"
1336 libschroedinger_encoder_deps="libschroedinger"
1337 libspeex_decoder_deps="libspeex"
1338 libtheora_encoder_deps="libtheora"
1339 libvorbis_encoder_deps="libvorbis"
1340 libvpx_decoder_deps="libvpx"
1341 libvpx_encoder_deps="libvpx"
1342 libx264_encoder_deps="libx264"
1343 libxavs_encoder_deps="libxavs"
1344 libxvid_encoder_deps="libxvid"
1345
1346 # demuxers / muxers
1347 ac3_demuxer_deps="ac3_parser"
1348 asf_stream_muxer_select="asf_muxer"
1349 avisynth_demuxer_deps="avisynth"
1350 dirac_demuxer_deps="dirac_parser"
1351 eac3_demuxer_select="ac3_parser"
1352 ipod_muxer_select="mov_muxer"
1353 libnut_demuxer_deps="libnut"
1354 libnut_muxer_deps="libnut"
1355 matroska_audio_muxer_select="matroska_muxer"
1356 matroska_demuxer_suggest="zlib bzlib"
1357 mov_demuxer_suggest="zlib"
1358 mp3_demuxer_deps="mpegaudio_parser"
1359 mp4_muxer_select="mov_muxer"
1360 mpegtsraw_demuxer_select="mpegts_demuxer"
1361 mxf_d10_muxer_select="mxf_muxer"
1362 ogg_demuxer_select="golomb"
1363 psp_muxer_select="mov_muxer"
1364 rtsp_demuxer_select="http_protocol sdp_demuxer"
1365 rtsp_muxer_select="rtp_muxer http_protocol sdp_demuxer"
1366 sap_demuxer_select="sdp_demuxer"
1367 sap_muxer_select="rtp_muxer rtp_protocol"
1368 sdp_demuxer_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1369 spdif_muxer_select="aac_parser"
1370 tg2_muxer_select="mov_muxer"
1371 tgp_muxer_select="mov_muxer"
1372 w64_demuxer_deps="wav_demuxer"
1373
1374 # indevs / outdevs
1375 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1376 alsa_outdev_deps="alsa_asoundlib_h"
1377 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1378 dv1394_indev_deps="dv1394 dv_demuxer"
1379 jack_indev_deps="jack_jack_h"
1380 libdc1394_indev_deps="libdc1394"
1381 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1382 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1383 v4l_indev_deps="linux_videodev_h"
1384 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1385 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1386 vfwcap_indev_extralibs="-lavicap32"
1387 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1388 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1389
1390 # protocols
1391 gopher_protocol_deps="network"
1392 http_protocol_deps="network"
1393 http_protocol_select="tcp_protocol"
1394 mmsh_protocol_select="http_protocol"
1395 mmst_protocol_deps="network"
1396 rtmp_protocol_select="tcp_protocol"
1397 rtp_protocol_select="udp_protocol"
1398 tcp_protocol_deps="network"
1399 udp_protocol_deps="network"
1400
1401 # filters
1402 blackframe_filter_deps="gpl"
1403 cropdetect_filter_deps="gpl"
1404 frei0r_filter_deps="frei0r dlopen strtok_r"
1405 ocv_smooth_filter_deps="libopencv"
1406 yadif_filter_deps="gpl"
1407
1408 # libraries
1409 avdevice_deps="avcodec avformat"
1410 avformat_deps="avcodec"
1411
1412 # programs
1413 ffmpeg_deps="avcodec avformat swscale"
1414 ffmpeg_select="buffer_filter"
1415 ffplay_deps="avcodec avformat swscale sdl"
1416 ffplay_select="rdft"
1417 ffprobe_deps="avcodec avformat"
1418 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1419 ffserver_extralibs='$ldl'
1420
1421 doc_deps="texi2html"
1422
1423 # tests
1424
1425 test_deps(){
1426     suf1=$1
1427     suf2=$2
1428     shift 2
1429     for v; do
1430         dep=${v%=*}
1431         tests=${v#*=}
1432         for name in ${tests}; do
1433             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1434         done
1435     done
1436 }
1437
1438 set_ne_test_deps(){
1439     eval ${1}_be_test_deps="bigendian"
1440     eval ${1}_le_test_deps="!bigendian"
1441 }
1442
1443 test_deps _encoder _decoder                                             \
1444     ac3                                                                 \
1445     adpcm_g726=g726                                                     \
1446     adpcm_ima_qt                                                        \
1447     adpcm_ima_wav                                                       \
1448     adpcm_ms                                                            \
1449     adpcm_swf                                                           \
1450     adpcm_yamaha=adpcm_yam                                              \
1451     alac                                                                \
1452     asv1                                                                \
1453     asv2                                                                \
1454     bmp                                                                 \
1455     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1456     dvvideo="dv dv50"                                                   \
1457     ffv1                                                                \
1458     flac                                                                \
1459     flashsv                                                             \
1460     flv                                                                 \
1461     gif                                                                 \
1462     h261                                                                \
1463     h263="h263 h263p"                                                   \
1464     huffyuv                                                             \
1465     jpegls                                                              \
1466     mjpeg="jpg mjpeg ljpeg"                                             \
1467     mp2                                                                 \
1468     mpeg1video="mpeg mpeg1b"                                            \
1469     mpeg2video="mpeg2 mpeg2thread"                                      \
1470     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1471     msmpeg4v3=msmpeg4                                                   \
1472     msmpeg4v2                                                           \
1473     pbm=pbmpipe                                                         \
1474     pcx                                                                 \
1475     pgm="pgm pgmpipe"                                                   \
1476     ppm="ppm ppmpipe"                                                   \
1477     rawvideo="rgb yuv"                                                  \
1478     roq                                                                 \
1479     rv10                                                                \
1480     rv20                                                                \
1481     sgi                                                                 \
1482     snow="snow snowll"                                                  \
1483     svq1                                                                \
1484     targa=tga                                                           \
1485     tiff                                                                \
1486     wmav1                                                               \
1487     wmav2                                                               \
1488     wmv1                                                                \
1489     wmv2                                                                \
1490
1491 test_deps _muxer _demuxer                                               \
1492     aiff                                                                \
1493     pcm_alaw=alaw                                                       \
1494     asf                                                                 \
1495     au                                                                  \
1496     avi                                                                 \
1497     dv=dv_fmt                                                           \
1498     ffm                                                                 \
1499     flv=flv_fmt                                                         \
1500     gxf                                                                 \
1501     matroska=mkv                                                        \
1502     mmf                                                                 \
1503     mov                                                                 \
1504     pcm_mulaw=mulaw                                                     \
1505     mxf                                                                 \
1506     nut                                                                 \
1507     ogg                                                                 \
1508     rawvideo=pixfmt                                                     \
1509     rm                                                                  \
1510     swf                                                                 \
1511     mpegts=ts                                                           \
1512     voc                                                                 \
1513     wav                                                                 \
1514     yuv4mpegpipe=yuv4mpeg                                               \
1515
1516 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1517
1518 set_ne_test_deps pixdesc
1519 set_ne_test_deps pixfmts_crop
1520 set_ne_test_deps pixfmts_hflip
1521 set_ne_test_deps pixfmts_null
1522 set_ne_test_deps pixfmts_pad
1523 set_ne_test_deps pixfmts_scale
1524 set_ne_test_deps pixfmts_vflip
1525
1526 # default parameters
1527
1528 logfile="config.log"
1529
1530 # installation paths
1531 prefix_default="/usr/local"
1532 bindir_default='${prefix}/bin'
1533 datadir_default='${prefix}/share/ffmpeg'
1534 incdir_default='${prefix}/include'
1535 libdir_default='${prefix}/lib'
1536 mandir_default='${prefix}/share/man'
1537 shlibdir_default="$libdir_default"
1538
1539 # toolchain
1540 ar_default="ar"
1541 cc_default="gcc"
1542 cc_version=\"unknown\"
1543 host_cc_default="gcc"
1544 ln_s="ln -sf"
1545 nm_default="nm"
1546 objformat="elf"
1547 ranlib="ranlib"
1548 strip_default="strip"
1549 yasmexe="yasm"
1550 nogas=":"
1551
1552 nm_opts='-g'
1553
1554 # machine
1555 arch_default=$(uname -m)
1556 cpu="generic"
1557
1558 # OS
1559 target_os_default=$(tolower $(uname -s))
1560 host_os=$target_os_default
1561
1562 # configurable options
1563 enable avcodec
1564 enable avcore
1565 enable avdevice
1566 enable avfilter
1567 enable avformat
1568 enable avutil
1569 enable asm
1570 enable debug
1571 enable doc
1572 enable fastdiv
1573 enable ffmpeg
1574 enable ffplay
1575 enable ffprobe
1576 enable ffserver
1577 enable mpegaudio_hp
1578 enable network
1579 enable optimizations
1580 enable protocols
1581 enable static
1582 enable stripping
1583 enable swscale
1584 enable swscale_alpha
1585
1586 # build settings
1587 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1588 FFSERVERLDFLAGS=-Wl,-E
1589 LIBPREF="lib"
1590 LIBSUF=".a"
1591 FULLNAME='$(NAME)$(BUILDSUF)'
1592 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1593 SLIBPREF="lib"
1594 SLIBSUF=".so"
1595 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1596 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1597 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1598 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1599
1600 CC_O='-o $@'
1601
1602 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1603 host_libs='-lm'
1604
1605 target_path='$(CURDIR)'
1606
1607 # since the object filename is not given with the -MM flag, the compiler
1608 # is only able to print the basename, and we must add the path ourselves
1609 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1610 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1611
1612 # find source path
1613 source_path="$(dirname "$0")"
1614 enable source_path_used
1615 if test -f configure; then
1616     source_path="$(pwd)"
1617     disable source_path_used
1618 else
1619     source_path="$(cd "$source_path"; pwd)"
1620     echo "$source_path" | grep -q '[[:blank:]]' &&
1621         die "Out of tree builds are impossible with whitespace in source path."
1622     test -e "$source_path/config.h" &&
1623         die "Out of tree builds are impossible with config.h in source dir."
1624 fi
1625
1626 for v in "$@"; do
1627     r=${v#*=}
1628     l=${v%"$r"}
1629     r=$(sh_quote "$r")
1630     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1631 done
1632
1633 find_things(){
1634     thing=$1
1635     pattern=$2
1636     file=$source_path/$3
1637     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1638 }
1639
1640 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1641 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1642 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1643 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1644 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1645 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1646 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1647 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1648 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1649 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1650 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1651
1652 find_tests(){
1653     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1654 }
1655
1656 ACODEC_TESTS=$(find_tests acodec)
1657 VCODEC_TESTS=$(find_tests vsynth1)
1658 LAVF_TESTS=$(find_tests lavf)
1659 LAVFI_TESTS=$(find_tests lavfi)
1660 SEEK_TESTS=$(find_tests seek seek_)
1661
1662 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1663
1664 for n in $COMPONENT_LIST; do
1665     v=$(toupper ${n%s})_LIST
1666     eval enable \$$v
1667     eval ${n}_if_any="\$$v"
1668 done
1669
1670 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1671
1672 die_unknown(){
1673     echo "Unknown option \"$1\"."
1674     echo "See $0 --help for available options."
1675     exit 1
1676 }
1677
1678 show_list() {
1679     suffix=_$1
1680     shift
1681     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1682     exit 0
1683 }
1684
1685 for opt do
1686     optval="${opt#*=}"
1687     case "$opt" in
1688     --extra-ldflags=*) add_ldflags $optval
1689     ;;
1690     --extra-libs=*) add_extralibs $optval
1691     ;;
1692     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1693     ;;
1694     --enable-debug=*) debuglevel="$optval"
1695     ;;
1696     --disable-everything)
1697     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1698     ;;
1699     --enable-*=*|--disable-*=*)
1700     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1701     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1702     eval list=\$$(toupper $thing)_LIST
1703     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1704     $action $(filter "$name" $list)
1705     ;;
1706     --enable-?*|--disable-?*)
1707     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1708     if is_in $option $COMPONENT_LIST; then
1709         test $action = disable && action=unset
1710         eval $action \$$(toupper ${option%s})_LIST
1711     elif is_in $option $CMDLINE_SELECT; then
1712         $action $option
1713     else
1714         die_unknown $opt
1715     fi
1716     ;;
1717     --list-*)
1718         NAME="${opt#--list-}"
1719         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1720         NAME=${NAME%s}
1721         eval show_list $NAME \$$(toupper $NAME)_LIST
1722     ;;
1723     --help|-h) show_help
1724     ;;
1725     *)
1726     optname="${opt%%=*}"
1727     optname="${optname#--}"
1728     optname=$(echo "$optname" | sed 's/-/_/g')
1729     if is_in $optname $CMDLINE_SET; then
1730         eval $optname='$optval'
1731     elif is_in $optname $CMDLINE_APPEND; then
1732         append $optname "$optval"
1733     else
1734          die_unknown $opt
1735     fi
1736     ;;
1737     esac
1738 done
1739
1740 disabled logging && logfile=/dev/null
1741
1742 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1743 set >> $logfile
1744
1745 test -n "$cross_prefix" && enable cross_compile
1746
1747 if enabled cross_compile; then
1748     test -n "$arch" && test -n "$target_os" ||
1749         die "Must specify target arch and OS when cross-compiling"
1750 fi
1751
1752 set_default arch target_os
1753
1754 ar_default="${cross_prefix}${ar_default}"
1755 cc_default="${cross_prefix}${cc_default}"
1756 nm_default="${cross_prefix}${nm_default}"
1757 ranlib="${cross_prefix}${ranlib}"
1758 strip_default="${cross_prefix}${strip_default}"
1759
1760 sysinclude_default="${sysroot}/usr/include"
1761
1762 set_default cc nm strip sysinclude
1763 enabled cross_compile || host_cc_default=$cc
1764 set_default host_cc
1765
1766 exesuf() {
1767     case $1 in
1768         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1769     esac
1770 }
1771
1772 EXESUF=$(exesuf $target_os)
1773 HOSTEXESUF=$(exesuf $host_os)
1774
1775 # set temporary file name
1776 : ${TMPDIR:=$TEMPDIR}
1777 : ${TMPDIR:=$TMP}
1778 : ${TMPDIR:=/tmp}
1779
1780 if ! check_cmd type mktemp; then
1781     # simple replacement for missing mktemp
1782     # NOT SAFE FOR GENERAL USE
1783     mktemp(){
1784         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1785     }
1786 fi
1787
1788 tmpfile(){
1789     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1790         (set -C; exec > $tmp) 2>/dev/null ||
1791         die "Unable to create temporary file in $TMPDIR."
1792     append TMPFILES $tmp
1793     eval $1=$tmp
1794 }
1795
1796 trap 'rm -f -- $TMPFILES' EXIT
1797 trap exit HUP INT TERM
1798
1799 tmpfile TMPC  .c
1800 tmpfile TMPE  $EXESUF
1801 tmpfile TMPH  .h
1802 tmpfile TMPO  .o
1803 tmpfile TMPS  .S
1804 tmpfile TMPV  .ver
1805 tmpfile TMPSH .sh
1806 tmpfile TMPASM .asm
1807
1808 unset -f mktemp
1809
1810 # make sure we can execute files in $TMPDIR
1811 cat > $TMPSH 2>> $logfile <<EOF
1812 #! /bin/sh
1813 EOF
1814 chmod +x $TMPSH >> $logfile 2>&1
1815 if ! $TMPSH >> $logfile 2>&1; then
1816     cat <<EOF
1817 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1818 variable to another directory and make sure that it is not mounted noexec.
1819 EOF
1820     die "Sanity test failed."
1821 fi
1822
1823 filter_cflags=echo
1824 filter_cppflags=echo
1825 filter_asflags=echo
1826
1827 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1828     cc_type=llvm_gcc
1829     cc_version=__VERSION__
1830     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1831     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1832     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1833     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1834     speed_cflags='-O3'
1835     size_cflags='-Os'
1836 elif $cc -v 2>&1 | grep -qi ^gcc; then
1837     cc_type=gcc
1838     cc_version=__VERSION__
1839     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1840     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1841     if ! $cc -dumpversion | grep -q '^2\.'; then
1842         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1843         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1844     fi
1845     speed_cflags='-O3'
1846     size_cflags='-Os'
1847 elif $cc --version 2>/dev/null | grep -q Intel; then
1848     cc_type=icc
1849     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1850     cc_ident=$($cc --version | head -n1)
1851     icc_version=$($cc -dumpversion)
1852     CC_DEPFLAGS='-MMD'
1853     AS_DEPFLAGS='-MMD'
1854     speed_cflags='-O3'
1855     size_cflags='-Os'
1856     noopt_cflags='-O1'
1857 elif $cc -v 2>&1 | grep -q xlc; then
1858     cc_type=xlc
1859     cc_version="AV_STRINGIFY(__IBMC__)"
1860     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1861     speed_cflags='-O5'
1862     size_cflags='-O5 -qcompact'
1863 elif $cc -V 2>/dev/null | grep -q Compaq; then
1864     cc_type=ccc
1865     cc_version="AV_STRINGIFY(__DECC_VER)"
1866     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1867     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1868     debuglevel=3
1869     add_ldflags -Wl,-z,now # calls to libots crash without this
1870     speed_cflags='-fast'
1871     size_cflags='-O1'
1872 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1873     test -d "$sysroot" || die "No valid sysroot specified."
1874     cc_type=armcc
1875     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1876     cc_ident=$($cc --vsn | head -n1)
1877     armcc_conf="$PWD/armcc.conf"
1878     $cc --arm_linux_configure                 \
1879         --arm_linux_config_file="$armcc_conf" \
1880         --configure_sysroot="$sysroot"        \
1881         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1882         die "Error creating armcc configuration file."
1883     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1884     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1885     as_default="${cross_prefix}gcc"
1886     CC_DEPFLAGS='-MMD'
1887     AS_DEPFLAGS='-MMD'
1888     speed_cflags='-O3'
1889     size_cflags='-Os'
1890 elif $cc -version 2>/dev/null | grep -q TMS470; then
1891     cc_type=tms470
1892     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1893     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1894     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1895     CC_O='-fr=$(@D)'
1896     as_default="${cross_prefix}gcc"
1897     ld_default="${cross_prefix}gcc"
1898     TMPO=$(basename $TMPC .c).o
1899     append TMPFILES $TMPO
1900     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1901     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1902     AS_DEPFLAGS='-MMD'
1903     speed_cflags='-O3 -mf=5'
1904     size_cflags='-O3 -mf=2'
1905     filter_cflags=tms470_flags
1906     tms470_flags(){
1907         for flag; do
1908             case $flag in
1909                 -march=*|-mcpu=*)
1910                     case "${flag#*=}" in
1911                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1912                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1913                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1914                         armv6*|arm11*)          echo -mv=6   ;;
1915                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1916                                                 echo -mv=5e  ;;
1917                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1918                     esac
1919                     ;;
1920                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1921                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1922                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1923                 -msoft-float)   echo --float_support=vfplib       ;;
1924                 -O[0-3]|-mf=*)  echo $flag                        ;;
1925                 -g)             echo -g -mn                       ;;
1926                 -pds=*)         echo $flag                        ;;
1927             esac
1928         done
1929     }
1930 elif $cc -v 2>&1 | grep -q clang; then
1931     cc_type=clang
1932     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1933         cc_version=__clang_version__ || cc_version=__VERSION__
1934     cc_ident=$($cc --version | head -n1)
1935     CC_DEPFLAGS='-MMD'
1936     AS_DEPFLAGS='-MMD'
1937     speed_cflags='-O3'
1938     size_cflags='-Os'
1939 elif $cc -V 2>&1 | grep -q Sun; then
1940     cc_type=suncc
1941     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1942     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1943     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1944     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1945     speed_cflags='-O5'
1946     size_cflags='-O5 -xspace'
1947     filter_cflags=suncc_flags
1948     suncc_flags(){
1949         for flag; do
1950             case $flag in
1951                 -march=*|-mcpu=*)
1952                     case "${flag#*=}" in
1953                         native)                   echo -xtarget=native       ;;
1954                         v9|niagara)               echo -xarch=sparc          ;;
1955                         ultrasparc)               echo -xarch=sparcvis       ;;
1956                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1957                         i586|pentium)             echo -xchip=pentium        ;;
1958                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1959                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1960                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1961                         pentium4*)          echo -xtarget=pentium4           ;;
1962                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1963                         *-sse3)             echo -xarch=sse3                 ;;
1964                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1965                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1966                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1967                         k8|opteron|athlon64|athlon-fx)
1968                                                   echo -xarch=sse2a          ;;
1969                         athlon*)                  echo -xarch=pentium_proa   ;;
1970                     esac
1971                     ;;
1972                 -std=c99)             echo -xc99              ;;
1973                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1974                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1975                 -W*,*)                echo $flag              ;;
1976                 -f*-*|-W*)                                    ;;
1977                 *)                    echo $flag              ;;
1978             esac
1979         done
1980     }
1981 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1982     cc_type=pathscale
1983     cc_version=__PATHSCALE__
1984     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1985     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1986     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1987     speed_cflags='-O2'
1988     size_cflags='-Os'
1989 elif $cc -v 2>&1 | grep -q Open64; then
1990     cc_type=open64
1991     cc_version=__OPEN64__
1992     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1993     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1994     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1995     speed_cflags='-O2'
1996     size_cflags='-Os'
1997 fi
1998
1999 test -n "$cc_type" && enable $cc_type ||
2000     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2001
2002 : ${as_default:=$cc}
2003 : ${dep_cc_default:=$cc}
2004 : ${ld_default:=$cc}
2005 set_default ar as dep_cc ld
2006
2007 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2008 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2009
2010 add_cflags $extra_cflags
2011 add_asflags $extra_cflags
2012
2013 if test -n "$sysroot"; then
2014     case "$cc_type" in
2015         gcc|llvm_gcc)
2016             add_cppflags --sysroot="$sysroot"
2017             add_ldflags --sysroot="$sysroot"
2018         ;;
2019         tms470)
2020             add_cppflags -I"$sysinclude"
2021             add_ldflags  --sysroot="$sysroot"
2022         ;;
2023         clang)
2024             add_cppflags -isysroot "$sysroot"
2025             add_ldflags -isysroot "$sysroot"
2026         ;;
2027     esac
2028 fi
2029
2030 if test "$cpu" = host; then
2031     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2032
2033     case "$cc_type" in
2034         gcc|llvm_gcc)
2035             check_native(){
2036                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2037                 sed -n "/$1=/{
2038                             s/.*$1=\\([^ ]*\\).*/\\1/
2039                             p
2040                             q
2041                         }" $TMPE
2042             }
2043             cpu=$(check_native -march || check_native -mcpu)
2044         ;;
2045     esac
2046
2047     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2048 fi
2049
2050 # Deal with common $arch aliases
2051 case "$arch" in
2052     arm*)
2053         arch="arm"
2054     ;;
2055     mips|mipsel|IP*)
2056         arch="mips"
2057     ;;
2058     mips64*)
2059         arch="mips"
2060         subarch="mips64"
2061     ;;
2062     parisc|hppa)
2063         arch="parisc"
2064     ;;
2065     parisc64|hppa64)
2066         arch="parisc"
2067         subarch="parisc64"
2068     ;;
2069     "Power Macintosh"|ppc|powerpc)
2070         arch="ppc"
2071     ;;
2072     ppc64|powerpc64)
2073         arch="ppc"
2074         subarch="ppc64"
2075     ;;
2076     s390|s390x)
2077         arch="s390"
2078     ;;
2079     sh4|sh)
2080         arch="sh4"
2081     ;;
2082     sun4u|sparc64)
2083         arch="sparc"
2084         subarch="sparc64"
2085     ;;
2086     i[3-6]86|i86pc|BePC|x86_64|amd64)
2087         arch="x86"
2088     ;;
2089 esac
2090
2091 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2092 enable $arch
2093
2094 # Add processor-specific flags
2095 if test "$cpu" = generic; then
2096     : do nothing
2097 elif enabled ppc; then
2098
2099     case $(tolower $cpu) in
2100         601|ppc601|powerpc601)
2101             cpuflags="-mcpu=601"
2102             disable altivec
2103         ;;
2104         603*|ppc603*|powerpc603*)
2105             cpuflags="-mcpu=603"
2106             disable altivec
2107         ;;
2108         604*|ppc604*|powerpc604*)
2109             cpuflags="-mcpu=604"
2110             disable altivec
2111         ;;
2112         g3|75*|ppc75*|powerpc75*)
2113             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2114             disable altivec
2115         ;;
2116         g4|745*|ppc745*|powerpc745*)
2117             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2118         ;;
2119         74*|ppc74*|powerpc74*)
2120             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2121         ;;
2122         g5|970|ppc970|powerpc970|power4*)
2123             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2124         ;;
2125         cell)
2126             cpuflags="-mcpu=cell"
2127             enable ldbrx
2128         ;;
2129         e500v2)
2130             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2131             disable altivec
2132         ;;
2133         e500)
2134             cpuflags="-mcpu=8540 -mhard-float"
2135             disable altivec
2136         ;;
2137     esac
2138
2139 elif enabled x86; then
2140
2141     case $cpu in
2142         i[345]86|pentium)
2143             cpuflags="-march=$cpu"
2144             disable mmx
2145         ;;
2146         # targets that do NOT support conditional mov (cmov)
2147         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2148             cpuflags="-march=$cpu"
2149             disable cmov
2150         ;;
2151         # targets that do support conditional mov (cmov)
2152         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2153             cpuflags="-march=$cpu"
2154             enable cmov
2155             enable fast_cmov
2156         ;;
2157         # targets that do support conditional mov but on which it's slow
2158         pentium4|pentium4m|prescott|nocona)
2159             cpuflags="-march=$cpu"
2160             enable cmov
2161             disable fast_cmov
2162         ;;
2163     esac
2164
2165 elif enabled sparc; then
2166
2167     case $cpu in
2168         niagara)
2169             cpuflags="-mcpu=$cpu"
2170             disable vis
2171         ;;
2172         sparc64)
2173             cpuflags="-mcpu=v9"
2174         ;;
2175     esac
2176
2177 elif enabled arm; then
2178
2179     case $cpu in
2180         armv*)
2181             cpuflags="-march=$cpu"
2182             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2183         ;;
2184         *)
2185             cpuflags="-mcpu=$cpu"
2186             case $cpu in
2187                 cortex-a*)                               subarch=armv7a  ;;
2188                 cortex-r*)                               subarch=armv7r  ;;
2189                 cortex-m*)                               subarch=armv7m  ;;
2190                 arm11*)                                  subarch=armv6   ;;
2191                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2192                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2193             esac
2194         ;;
2195     esac
2196
2197 elif enabled alpha; then
2198
2199     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2200
2201 elif enabled bfin; then
2202
2203     cpuflags="-mcpu=$cpu"
2204
2205 elif enabled mips; then
2206
2207     cpuflags="-march=$cpu"
2208
2209 elif enabled avr32; then
2210
2211     case $cpu in
2212         ap7[02]0[0-2])
2213             subarch="avr32_ap"
2214             cpuflags="-mpart=$cpu"
2215         ;;
2216         ap)
2217             subarch="avr32_ap"
2218             cpuflags="-march=$cpu"
2219         ;;
2220         uc3[ab]*)
2221             subarch="avr32_uc"
2222             cpuflags="-mcpu=$cpu"
2223         ;;
2224         uc)
2225             subarch="avr32_uc"
2226             cpuflags="-march=$cpu"
2227         ;;
2228     esac
2229
2230 fi
2231
2232 add_cflags $cpuflags
2233 add_asflags $cpuflags
2234
2235 # compiler sanity check
2236 check_exec <<EOF
2237 int main(void){ return 0; }
2238 EOF
2239 if test "$?" != 0; then
2240     echo "$cc is unable to create an executable file."
2241     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2242         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2243         echo "Only do this if you know what cross compiling means."
2244     fi
2245     die "C compiler test failed."
2246 fi
2247
2248 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2249 check_cflags -std=c99
2250 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2251 #include <stdlib.h>
2252 EOF
2253 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2254 #include <stdlib.h>
2255 EOF
2256
2257 check_host_cflags -std=c99
2258
2259 case "$arch" in
2260     alpha|ia64|mips|parisc|sparc)
2261         spic=$shared
2262     ;;
2263     x86)
2264         subarch="x86_32"
2265         check_cc <<EOF && subarch="x86_64"
2266         int test[(int)sizeof(char*) - 7];
2267 EOF
2268         if test "$subarch" = "x86_64"; then
2269             spic=$shared
2270         fi
2271     ;;
2272 esac
2273
2274 enable $subarch
2275 enabled spic && enable pic
2276
2277 # OS specific
2278 case $target_os in
2279     haiku)
2280         prefix_default="/boot/common"
2281         network_extralibs="-lnetwork"
2282         ;;
2283     sunos)
2284         FFSERVERLDFLAGS=""
2285         SHFLAGS='-shared -Wl,-h,$$(@F)'
2286         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2287         network_extralibs="-lsocket -lnsl"
2288         add_cppflags -D__EXTENSIONS__
2289         nm_opts='-P -g'
2290         ;;
2291     netbsd)
2292         oss_indev_extralibs="-lossaudio"
2293         oss_outdev_extralibs="-lossaudio"
2294         add_cppflags -D_XOPEN_SOURCE=600
2295         ;;
2296     openbsd)
2297         enable malloc_aligned
2298         # On OpenBSD 4.5. the compiler does not use PIC unless
2299         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2300         # however the generated executable will not do anything
2301         # (simply quits with exit-code 1, no crash, no output).
2302         # Thus explicitly enable PIC here.
2303         enable pic
2304         SHFLAGS='-shared'
2305         oss_indev_extralibs="-lossaudio"
2306         oss_outdev_extralibs="-lossaudio"
2307         ;;
2308     freebsd|dragonfly)
2309         enable malloc_aligned
2310         ;;
2311     bsd/os)
2312         add_extralibs -lpoll -lgnugetopt
2313         strip="strip -d"
2314         ;;
2315     darwin)
2316         enable malloc_aligned
2317         gas="gas-preprocessor.pl $cc"
2318         enabled ppc && add_asflags -force_cpusubtype_ALL
2319         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2320         strip="${strip} -x"
2321         add_ldflags -Wl,-dynamic,-search_paths_first
2322         SLIBSUF=".dylib"
2323         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2324         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2325         FFSERVERLDFLAGS=-Wl,-bind_at_load
2326         objformat="macho"
2327         enabled x86_64 && objformat="macho64"
2328         enabled_any pic shared ||
2329             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2330         ;;
2331     mingw32*)
2332         if test $target_os = "mingw32ce"; then
2333             disable network
2334         else
2335             target_os=mingw32
2336         fi
2337         LIBTARGET=i386
2338         if enabled x86_64; then
2339             enable malloc_aligned
2340             LIBTARGET=x64
2341         elif enabled arm; then
2342             LIBTARGET=arm
2343         fi
2344         shlibdir_default="$bindir_default"
2345         disable ffserver
2346         SLIBPREF=""
2347         SLIBSUF=".dll"
2348         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2349         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2350         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2351         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2352             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2353             install -d "$(LIBDIR)"; \
2354             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2355         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2356         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'
2357         objformat="win32"
2358         enable dos_paths
2359         check_cflags -fno-common
2360         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2361                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2362                 die "ERROR: MinGW runtime version must be >= 3.15."
2363         ;;
2364     cygwin*)
2365         target_os=cygwin
2366         shlibdir_default="$bindir_default"
2367         SLIBPREF="cyg"
2368         SLIBSUF=".dll"
2369         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2370         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2371         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2372         objformat="win32"
2373         enable dos_paths
2374         check_cflags -fno-common
2375         ;;
2376     *-dos|freedos|opendos)
2377         disable ffplay ffserver
2378         disable $INDEV_LIST $OUTDEV_LIST
2379         network_extralibs="-lsocket"
2380         objformat="coff"
2381         enable dos_paths
2382         ;;
2383     linux)
2384         enable dv1394
2385         ;;
2386     irix*)
2387         target_os=irix
2388         ranlib="echo ignoring ranlib"
2389         ;;
2390     os/2*)
2391         strip="lxlite"
2392         ln_s="cp -f"
2393         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2394         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2395         FFSERVERLDFLAGS=""
2396         LIBSUF="_s.a"
2397         SLIBPREF=""
2398         SLIBSUF=".dll"
2399         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2400         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2401         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2402           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2403           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2404           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2405           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2406           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2407         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2408           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2409         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2410         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2411         enable dos_paths
2412         ;;
2413     gnu/kfreebsd)
2414         ;;
2415     gnu)
2416         ;;
2417     none)
2418         ;;
2419     *)
2420         die "Unknown OS '$target_os'."
2421         ;;
2422 esac
2423
2424 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2425
2426 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2427
2428 set_default $PATHS_LIST
2429
2430 # we need to build at least one lib type
2431 if ! enabled_any static shared; then
2432     cat <<EOF
2433 At least one library type must be built.
2434 Specify --enable-static to build the static libraries or --enable-shared to
2435 build the shared libraries as well. To only build the shared libraries specify
2436 --disable-static in addition to --enable-shared.
2437 EOF
2438     exit 1;
2439 fi
2440
2441 disabled static && LIBNAME=""
2442
2443 die_license_disabled() {
2444     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2445 }
2446
2447 die_license_disabled gpl libx264
2448 die_license_disabled gpl libxavs
2449 die_license_disabled gpl libxvid
2450 die_license_disabled gpl postproc
2451 die_license_disabled gpl x11grab
2452
2453 die_license_disabled nonfree libfaac
2454
2455 die_license_disabled version3 libopencore_amrnb
2456 die_license_disabled version3 libopencore_amrwb
2457
2458 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2459
2460 check_deps $ARCH_EXT_LIST
2461
2462 disabled optimizations || check_cflags -fomit-frame-pointer
2463
2464 enable_pic() {
2465     enable pic
2466     add_cppflags -DPIC
2467     add_cflags   -fPIC
2468     add_asflags  -fPIC
2469 }
2470
2471 enabled pic && enable_pic
2472
2473 check_cc <<EOF || die "Symbol mangling check failed."
2474 int ff_extern;
2475 EOF
2476 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2477 extern_prefix=${sym%%ff_extern*}
2478
2479 check_cc <<EOF && enable inline_asm
2480 void foo(void) { __asm__ volatile ("" ::); }
2481 EOF
2482
2483 _restrict=
2484 for restrict_keyword in restrict __restrict__ __restrict; do
2485     check_cc <<EOF && _restrict=$restrict_keyword && break
2486 void foo(char * $restrict_keyword p);
2487 EOF
2488 done
2489
2490 check_cc <<EOF && enable attribute_packed
2491 struct { int x; } __attribute__((packed)) x;
2492 EOF
2493
2494 check_cc <<EOF && enable attribute_may_alias
2495 union { int x; } __attribute__((may_alias)) x;
2496 EOF
2497
2498 check_cc <<EOF || die "endian test failed"
2499 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2500 EOF
2501 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2502
2503 if enabled alpha; then
2504
2505     check_cflags -mieee
2506
2507 elif enabled arm; then
2508
2509     check_cflags -marm
2510     nogas=die
2511
2512     check_ld <<EOF && enable vfp_args
2513 __asm__ (".eabi_attribute 28, 1");
2514 int main(void) { return 0; }
2515 EOF
2516
2517     # We have to check if pld is a nop and disable it.
2518     check_asm pld '"pld [r0]"'
2519
2520     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2521     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2522     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2523     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2524     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2525     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2526
2527     enabled_all armv6t2 shared !pic && enable_pic
2528
2529 elif enabled mips; then
2530
2531     check_asm loongson '"dmult.g $1, $2, $3"'
2532     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2533
2534 elif enabled ppc; then
2535
2536     enable local_aligned_8 local_aligned_16
2537
2538     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2539     check_asm ibm_asm   '"add 0, 0, 0"'
2540     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2541     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2542
2543     # AltiVec flags: The FSF version of GCC differs from the Apple version
2544     if enabled altivec; then
2545         nogas=warn
2546         check_cflags -maltivec -mabi=altivec &&
2547         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2548         check_cflags -faltivec
2549
2550         # check if our compiler supports Motorola AltiVec C API
2551         check_cc <<EOF || disable altivec
2552 $inc_altivec_h
2553 int main(void) {
2554     vector signed int v1, v2, v3;
2555     v1 = vec_add(v2,v3);
2556     return 0;
2557 }
2558 EOF
2559
2560         # check if our compiler supports braces for vector declarations
2561         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2562 $inc_altivec_h
2563 int main (void) { (vector int) {1}; return 0; }
2564 EOF
2565     fi
2566
2567 elif enabled sparc; then
2568
2569     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2570         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2571
2572 elif enabled x86; then
2573
2574     enable local_aligned_8 local_aligned_16
2575
2576     # check whether EBP is available on x86
2577     # As 'i' is stored on the stack, this program will crash
2578     # if the base pointer is used to access it because the
2579     # base pointer is cleared in the inline assembly code.
2580     check_exec_crash <<EOF && enable ebp_available
2581     volatile int i=0;
2582     __asm__ volatile (
2583         "xorl %%ebp, %%ebp"
2584     ::: "%ebp");
2585     return i;
2586 EOF
2587
2588     # check whether EBX is available on x86
2589     check_asm ebx_available '""::"b"(0)' &&
2590         check_asm ebx_available '"":::"%ebx"'
2591
2592     # check whether xmm clobbers are supported
2593     check_asm xmm_clobbers '"":::"%xmm0"'
2594
2595     # check whether more than 10 operands are supported
2596     check_cc <<EOF && enable ten_operands
2597 int main(void) {
2598     int x=0;
2599     __asm__ volatile(
2600         ""
2601         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2602     );
2603     return 0;
2604 }
2605 EOF
2606
2607     # check whether binutils is new enough to compile SSSE3/MMX2
2608     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2609     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2610
2611     check_asm bswap '"bswap %%eax" ::: "%eax"'
2612
2613     if ! disabled_any asm mmx yasm; then
2614         if check_cmd $yasmexe --version; then
2615             enabled x86_64 && yasm_extra="-m amd64"
2616             yasm_debug="-g dwarf2"
2617         elif check_cmd nasm -v; then
2618             yasmexe=nasm
2619             yasm_debug="-g -F dwarf"
2620             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2621         fi
2622
2623         YASMFLAGS="-f $objformat $yasm_extra"
2624         enabled pic               && append YASMFLAGS "-DPIC"
2625         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2626         case "$objformat" in
2627             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2628         esac
2629
2630         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2631             die "yasm not found, use --disable-yasm for a crippled build"
2632     fi
2633
2634     case "$cpu" in
2635         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2636             disable fast_clz
2637         ;;
2638     esac
2639
2640 fi
2641
2642 if enabled asm; then
2643     as=${gas:=$as}
2644     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2645         $nogas "GNU assembler not found, install gas-preprocessor"
2646 fi
2647
2648 if check_func dlopen; then
2649     ldl=
2650 elif check_func dlopen -ldl; then
2651     ldl=-ldl
2652 fi
2653
2654 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2655 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2656
2657 check_func  fcntl
2658 check_func  fork
2659 check_func  getaddrinfo $network_extralibs
2660 check_func  gethrtime
2661 check_func  getrusage
2662 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2663 check_func  inet_aton $network_extralibs
2664 check_func  isatty
2665 check_func  ${malloc_prefix}memalign            && enable memalign
2666 check_func  mkstemp
2667 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2668 check_func  setrlimit
2669 check_func  strerror_r
2670 check_func  strtok_r
2671 check_func_headers io.h setmode
2672 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2673 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2674 check_func_headers windows.h GetProcessTimes
2675 check_func_headers windows.h VirtualAlloc
2676
2677 check_header conio.h
2678 check_header dlfcn.h
2679 check_header dxva2api.h
2680 check_header malloc.h
2681 check_header poll.h
2682 check_header sys/mman.h
2683 check_header sys/resource.h
2684 check_header sys/select.h
2685 check_header termios.h
2686 check_header vdpau/vdpau.h
2687 check_header vdpau/vdpau_x11.h
2688 check_header X11/extensions/XvMClib.h
2689
2690 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2691
2692 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2693      enabled_any $need_memalign ; then
2694     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2695 fi
2696
2697 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2698 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2699
2700 # check for some common methods of building with pthread support
2701 # do this before the optional library checks as some of them require pthreads
2702 if ! disabled pthreads && ! enabled w32threads; then
2703     enable pthreads
2704     if check_func pthread_create; then
2705         :
2706     elif check_func pthread_create -pthread; then
2707         add_cflags -pthread
2708         add_extralibs -pthread
2709     elif check_func pthread_create -pthreads; then
2710         add_cflags -pthreads
2711         add_extralibs -pthreads
2712     elif check_func pthread_create -lpthreadGC2; then
2713         add_extralibs -lpthreadGC2
2714     elif ! check_lib pthread.h pthread_create -lpthread; then
2715         disable pthreads
2716     fi
2717 fi
2718
2719 for thread in $THREADS_LIST; do
2720     if enabled $thread; then
2721         test -n "$thread_type" &&
2722             die "ERROR: Only one thread type must be selected." ||
2723             thread_type="$thread"
2724     fi
2725 done
2726
2727 check_lib math.h sin -lm
2728 disabled vaapi || check_lib va/va.h vaInitialize -lva
2729
2730 check_mathfunc exp2
2731 check_mathfunc exp2f
2732 check_mathfunc llrint
2733 check_mathfunc llrintf
2734 check_mathfunc log2
2735 check_mathfunc log2f
2736 check_mathfunc lrint
2737 check_mathfunc lrintf
2738 check_mathfunc round
2739 check_mathfunc roundf
2740 check_mathfunc truncf
2741
2742 # these are off by default, so fail if requested and not available
2743 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2744 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2745 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2746                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2747                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2748 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2749 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2750 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2751 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2752 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2753 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2754 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2755                         die "ERROR: libopencv not found"; }
2756 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2757 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2758                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2759 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2760                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2761 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2762 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2763 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2764 enabled libvpx     && {
2765     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2766                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2767     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2768                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2769 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2770                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2771                         die "ERROR: libx264 version must be >= 0.98."; }
2772 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2773 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2774 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2775
2776 # libdc1394 check
2777 if enabled libdc1394; then
2778     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2779         enable libdc1394_2; } ||
2780     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2781         enable libdc1394_1; } ||
2782     die "ERROR: No version of libdc1394 found "
2783 fi
2784
2785 SDL_CONFIG="${cross_prefix}sdl-config"
2786 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2787     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2788     sdl_libs=$("${SDL_CONFIG}" --libs)
2789     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2790     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2791     enable sdl &&
2792     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2793 fi
2794
2795 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2796
2797 if enabled network; then
2798     check_type "sys/types.h sys/socket.h" socklen_t
2799     check_type netdb.h "struct addrinfo"
2800     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2801     check_type netinet/in.h "struct sockaddr_in6"
2802     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2803     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2804     # Prefer arpa/inet.h over winsock2
2805     if check_header arpa/inet.h ; then
2806         check_func closesocket
2807     elif check_header winsock2.h ; then
2808         check_func_headers winsock2.h closesocket -lws2 && \
2809             network_extralibs="-lws2" || \
2810         { check_func_headers winsock2.h closesocket -lws2_32 && \
2811             network_extralibs="-lws2_32"; }
2812         check_type ws2tcpip.h socklen_t
2813         check_type ws2tcpip.h "struct addrinfo"
2814         check_type ws2tcpip.h "struct ipv6_mreq"
2815         check_type ws2tcpip.h "struct sockaddr_in6"
2816         check_type ws2tcpip.h "struct sockaddr_storage"
2817         check_struct winsock2.h "struct sockaddr" sa_len
2818     else
2819         disable network
2820     fi
2821 fi
2822
2823 check_header linux/videodev.h
2824 check_header linux/videodev2.h
2825 check_header sys/videoio.h
2826
2827 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2828 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2829 # w32api 3.12 had it defined wrong
2830 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2831
2832 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2833 { check_header dev/bktr/ioctl_meteor.h &&
2834   check_header dev/bktr/ioctl_bt848.h; } ||
2835 { check_header machine/ioctl_meteor.h &&
2836   check_header machine/ioctl_bt848.h; } ||
2837 { check_header dev/video/meteor/ioctl_meteor.h &&
2838   check_header dev/video/bktr/ioctl_bt848.h; } ||
2839 check_header dev/ic/bt8xx.h
2840
2841 check_header sys/soundcard.h
2842 check_header soundcard.h
2843
2844 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2845
2846 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2847
2848 enabled x11grab                         &&
2849 check_header X11/Xlib.h                 &&
2850 check_header X11/extensions/XShm.h      &&
2851 check_header X11/extensions/Xfixes.h    &&
2852 check_func XOpenDisplay -lX11           &&
2853 check_func XShmCreateImage -lX11 -lXext &&
2854 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2855
2856 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2857 check_cpp_condition \
2858     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2859     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2860       disable vdpau; }
2861 fi
2862
2863 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2864
2865 # add some useful compiler flags if supported
2866 check_cflags -Wdeclaration-after-statement
2867 check_cflags -Wall
2868 check_cflags -Wno-parentheses
2869 check_cflags -Wno-switch
2870 check_cflags -Wdisabled-optimization
2871 check_cflags -Wpointer-arith
2872 check_cflags -Wredundant-decls
2873 check_cflags -Wno-pointer-sign
2874 check_cflags -Wcast-qual
2875 check_cflags -Wwrite-strings
2876 check_cflags -Wtype-limits
2877 check_cflags -Wundef
2878 check_cflags -Wmissing-prototypes
2879 enabled extra_warnings && check_cflags -Winline
2880
2881 # add some linker flags
2882 check_ldflags -Wl,--warn-common
2883 check_ldflags -Wl,--as-needed
2884 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'
2885 check_ldflags -Wl,-Bsymbolic
2886
2887 echo "X{};" > $TMPV
2888 if test_ldflags -Wl,--version-script,$TMPV; then
2889     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2890     check_cc <<EOF && enable symver_asm_label
2891 void ff_foo(void) __asm__ ("av_foo@VERSION");
2892 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2893 EOF
2894     check_cc <<EOF && enable symver_gnu_asm
2895 __asm__(".symver ff_foo,av_foo@VERSION");
2896 void ff_foo(void) {}
2897 EOF
2898 fi
2899
2900 if enabled small; then
2901     add_cflags $size_cflags
2902     optimizations="small"
2903 elif enabled optimizations; then
2904     add_cflags $speed_cflags
2905 else
2906     add_cflags $noopt_cflags
2907 fi
2908 check_cflags -fno-math-errno
2909 check_cflags -fno-signed-zeros
2910
2911 if enabled icc; then
2912     # Just warnings, no remarks
2913     check_cflags -w1
2914     # -wd: Disable following warnings
2915     # 144, 167, 556: -Wno-pointer-sign
2916     # 10006: ignoring unknown option -fno-signed-zeros
2917     # 10156: ignoring option '-W'; no argument required
2918     check_cflags -wd144,167,556,10006,10156
2919     # 11030: Warning unknown option --as-needed
2920     # 10156: ignoring option '-export'; no argument required
2921     check_ldflags -wd10156,11030
2922     # Allow to compile with optimizations
2923     check_ldflags -march=$cpu
2924     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2925     enable ebp_available
2926     if enabled x86_32; then
2927         test ${icc_version%%.*} -ge 11 && \
2928             check_cflags -falign-stack=maintain-16-byte || \
2929             disable aligned_stack
2930     fi
2931 elif enabled ccc; then
2932     # disable some annoying warnings
2933     add_cflags -msg_disable cvtu32to64
2934     add_cflags -msg_disable embedcomment
2935     add_cflags -msg_disable needconstext
2936     add_cflags -msg_disable nomainieee
2937     add_cflags -msg_disable ptrmismatch1
2938     add_cflags -msg_disable unreachcode
2939 elif enabled gcc; then
2940     check_cflags -fno-tree-vectorize
2941     check_cflags -Werror=implicit-function-declaration
2942     check_cflags -Werror=missing-prototypes
2943 elif enabled llvm_gcc; then
2944     check_cflags -mllvm -stack-alignment=16
2945 elif enabled clang; then
2946     check_cflags -mllvm -stack-alignment=16
2947     check_cflags -Qunused-arguments
2948 elif enabled armcc; then
2949     # 2523: use of inline assembler is deprecated
2950     add_cflags -W${armcc_opt},--diag_suppress=2523
2951     add_cflags -W${armcc_opt},--diag_suppress=1207
2952 elif enabled tms470; then
2953     add_cflags -pds=824 -pds=837
2954 fi
2955
2956 enabled_any $THREADS_LIST      && enable threads
2957
2958 check_deps $CONFIG_LIST       \
2959            $CONFIG_EXTRA      \
2960            $HAVE_LIST         \
2961            $DECODER_LIST      \
2962            $ENCODER_LIST      \
2963            $HWACCEL_LIST      \
2964            $PARSER_LIST       \
2965            $BSF_LIST          \
2966            $DEMUXER_LIST      \
2967            $MUXER_LIST        \
2968            $FILTER_LIST       \
2969            $INDEV_LIST        \
2970            $OUTDEV_LIST       \
2971            $PROTOCOL_LIST     \
2972            $ACODEC_TESTS      \
2973            $VCODEC_TESTS      \
2974            $LAVF_TESTS        \
2975            $LAVFI_TESTS       \
2976            $SEEK_TESTS        \
2977
2978 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2979
2980 echo "install prefix            $prefix"
2981 echo "source path               $source_path"
2982 echo "C compiler                $cc"
2983 echo "ARCH                      $arch ($cpu)"
2984 if test "$build_suffix" != ""; then
2985     echo "build suffix              $build_suffix"
2986 fi
2987 if test "$extra_version" != ""; then
2988     echo "version string suffix     $extra_version"
2989 fi
2990 echo "big-endian                ${bigendian-no}"
2991 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2992 if enabled x86; then
2993     echo "yasm                      ${yasm-no}"
2994     echo "MMX enabled               ${mmx-no}"
2995     echo "MMX2 enabled              ${mmx2-no}"
2996     echo "3DNow! enabled            ${amd3dnow-no}"
2997     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2998     echo "SSE enabled               ${sse-no}"
2999     echo "SSSE3 enabled             ${ssse3-no}"
3000     echo "CMOV enabled              ${cmov-no}"
3001     echo "CMOV is fast              ${fast_cmov-no}"
3002     echo "EBX available             ${ebx_available-no}"
3003     echo "EBP available             ${ebp_available-no}"
3004     echo "10 operands supported     ${ten_operands-no}"
3005 fi
3006 if enabled arm; then
3007     echo "ARMv5TE enabled           ${armv5te-no}"
3008     echo "ARMv6 enabled             ${armv6-no}"
3009     echo "ARMv6T2 enabled           ${armv6t2-no}"
3010     echo "ARM VFP enabled           ${armvfp-no}"
3011     echo "IWMMXT enabled            ${iwmmxt-no}"
3012     echo "NEON enabled              ${neon-no}"
3013 fi
3014 if enabled mips; then
3015     echo "MMI enabled               ${mmi-no}"
3016 fi
3017 if enabled ppc; then
3018     echo "AltiVec enabled           ${altivec-no}"
3019     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3020     echo "dcbzl available           ${dcbzl-no}"
3021 fi
3022 if enabled sparc; then
3023     echo "VIS enabled               ${vis-no}"
3024 fi
3025 echo "debug symbols             ${debug-no}"
3026 echo "strip symbols             ${stripping-no}"
3027 echo "optimizations             ${optimizations-no}"
3028 echo "static                    ${static-no}"
3029 echo "shared                    ${shared-no}"
3030 echo "postprocessing support    ${postproc-no}"
3031 echo "new filter support        ${avfilter-no}"
3032 echo "network support           ${network-no}"
3033 echo "threading support         ${thread_type-no}"
3034 echo "SDL support               ${sdl-no}"
3035 echo "Sun medialib support      ${mlib-no}"
3036 echo "AVISynth enabled          ${avisynth-no}"
3037 echo "frei0r enabled            ${frei0r-no}"
3038 echo "libdc1394 support         ${libdc1394-no}"
3039 echo "libdirac enabled          ${libdirac-no}"
3040 echo "libfaac enabled           ${libfaac-no}"
3041 echo "libgsm enabled            ${libgsm-no}"
3042 echo "libmp3lame enabled        ${libmp3lame-no}"
3043 echo "libnut enabled            ${libnut-no}"
3044 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3045 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3046 echo "libopencv support         ${libopencv-no}"
3047 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3048 echo "librtmp enabled           ${librtmp-no}"
3049 echo "libschroedinger enabled   ${libschroedinger-no}"
3050 echo "libspeex enabled          ${libspeex-no}"
3051 echo "libtheora enabled         ${libtheora-no}"
3052 echo "libvorbis enabled         ${libvorbis-no}"
3053 echo "libvpx enabled            ${libvpx-no}"
3054 echo "libx264 enabled           ${libx264-no}"
3055 echo "libxavs enabled           ${libxavs-no}"
3056 echo "libxvid enabled           ${libxvid-no}"
3057 echo "zlib enabled              ${zlib-no}"
3058 echo "bzlib enabled             ${bzlib-no}"
3059 echo
3060
3061 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3062     echo "Enabled ${type}s:"
3063     eval list=\$$(toupper $type)_LIST
3064     print_enabled '_*' $list | sort | pr -3 -t
3065     echo
3066 done
3067
3068 license="LGPL version 2.1 or later"
3069 if enabled nonfree; then
3070     license="nonfree and unredistributable"
3071 elif enabled gplv3; then
3072     license="GPL version 3 or later"
3073 elif enabled lgplv3; then
3074     license="LGPL version 3 or later"
3075 elif enabled gpl; then
3076     license="GPL version 2 or later"
3077 fi
3078
3079 echo "License: $license"
3080
3081 echo "Creating config.mak and config.h..."
3082
3083 # build tree in object directory if source path is different from current one
3084 if enabled source_path_used; then
3085     DIRS="
3086         doc
3087         libavcodec
3088         libavcodec/$arch
3089         libavcore
3090         libavdevice
3091         libavfilter
3092         libavfilter/$arch
3093         libavformat
3094         libavutil
3095         libavutil/$arch
3096         libpostproc
3097         libswscale
3098         libswscale/$arch
3099         tests
3100         tools
3101     "
3102     FILES="
3103         Makefile
3104         common.mak
3105         subdir.mak
3106         doc/texi2pod.pl
3107         libavcodec/Makefile
3108         libavcodec/${arch}/Makefile
3109         libavcore/Makefile
3110         libavdevice/Makefile
3111         libavfilter/Makefile
3112         libavfilter/${arch}/Makefile
3113         libavformat/Makefile
3114         libavutil/Makefile
3115         libpostproc/Makefile
3116         libswscale/Makefile
3117     "
3118     map 'mkdir -p $v' $DIRS;
3119     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3120 fi
3121
3122 enabled stripping || strip="echo skipping strip"
3123
3124 config_files="$TMPH config.mak"
3125
3126 cat > config.mak <<EOF
3127 # Automatically generated by configure - do not modify!
3128 ifndef FFMPEG_CONFIG_MAK
3129 FFMPEG_CONFIG_MAK=1
3130 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3131 prefix=$prefix
3132 LIBDIR=\$(DESTDIR)$libdir
3133 SHLIBDIR=\$(DESTDIR)$shlibdir
3134 INCDIR=\$(DESTDIR)$incdir
3135 BINDIR=\$(DESTDIR)$bindir
3136 DATADIR=\$(DESTDIR)$datadir
3137 MANDIR=\$(DESTDIR)$mandir
3138 SRC_PATH="$source_path"
3139 SRC_PATH_BARE=$source_path
3140 BUILD_ROOT="$PWD"
3141 CC_IDENT=$cc_ident
3142 ARCH=$arch
3143 CC=$cc
3144 AS=$as
3145 LD=$ld
3146 DEPCC=$dep_cc
3147 YASM=$yasmexe
3148 YASMDEP=$yasmexe
3149 AR=$ar
3150 RANLIB=$ranlib
3151 CP=cp -p
3152 LN_S=$ln_s
3153 STRIP=$strip
3154 CPPFLAGS=$CPPFLAGS
3155 CFLAGS=$CFLAGS
3156 ASFLAGS=$ASFLAGS
3157 CC_O=$CC_O
3158 LDFLAGS=$LDFLAGS
3159 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3160 SHFLAGS=$SHFLAGS
3161 YASMFLAGS=$YASMFLAGS
3162 BUILDSUF=$build_suffix
3163 FULLNAME=$FULLNAME
3164 LIBPREF=$LIBPREF
3165 LIBSUF=$LIBSUF
3166 LIBNAME=$LIBNAME
3167 SLIBPREF=$SLIBPREF
3168 SLIBSUF=$SLIBSUF
3169 EXESUF=$EXESUF
3170 EXTRA_VERSION=$extra_version
3171 DEPFLAGS=$DEPFLAGS
3172 CCDEP=$CCDEP
3173 ASDEP=$ASDEP
3174 CC_DEPFLAGS=$CC_DEPFLAGS
3175 AS_DEPFLAGS=$AS_DEPFLAGS
3176 HOSTCC=$host_cc
3177 HOSTCFLAGS=$host_cflags
3178 HOSTEXESUF=$HOSTEXESUF
3179 HOSTLDFLAGS=$host_ldflags
3180 HOSTLIBS=$host_libs
3181 TARGET_EXEC=$target_exec
3182 TARGET_PATH=$target_path
3183 SDL_LIBS=$sdl_libs
3184 SDL_CFLAGS=$sdl_cflags
3185 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3186 EXTRALIBS=$extralibs
3187 INSTALL=install
3188 LIBTARGET=${LIBTARGET}
3189 SLIBNAME=${SLIBNAME}
3190 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3191 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3192 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3193 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3194 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3195 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3196 SAMPLES=$samples
3197 EOF
3198
3199 get_version(){
3200     name=$1
3201     file=$source_path/$2
3202     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3203     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3204     lcname=$(tolower $name)
3205     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3206     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3207 }
3208
3209 get_version LIBSWSCALE  libswscale/swscale.h
3210 get_version LIBPOSTPROC libpostproc/postprocess.h
3211 get_version LIBAVCODEC  libavcodec/avcodec.h
3212 get_version LIBAVCORE   libavcore/avcore.h
3213 get_version LIBAVDEVICE libavdevice/avdevice.h
3214 get_version LIBAVFORMAT libavformat/avformat.h
3215 get_version LIBAVUTIL   libavutil/avutil.h
3216 get_version LIBAVFILTER libavfilter/avfilter.h
3217
3218 cat > $TMPH <<EOF
3219 /* Automatically generated by configure - do not modify! */
3220 #ifndef FFMPEG_CONFIG_H
3221 #define FFMPEG_CONFIG_H
3222 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3223 #define FFMPEG_LICENSE "$(c_escape $license)"
3224 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3225 #define CC_TYPE "$cc_type"
3226 #define CC_VERSION $cc_version
3227 #define restrict $_restrict
3228 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3229 #define EXTERN_PREFIX "${extern_prefix}"
3230 #define EXTERN_ASM ${extern_prefix}
3231 #define SLIBSUF "$SLIBSUF"
3232 EOF
3233
3234 test -n "$malloc_prefix" &&
3235     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3236
3237 if enabled small || disabled optimizations; then
3238     echo "#undef  av_always_inline"  >> $TMPH
3239     echo "#define av_always_inline"  >> $TMPH
3240 fi
3241
3242 if enabled yasm; then
3243     append config_files $TMPASM
3244     printf '' >$TMPASM
3245 fi
3246
3247 print_config ARCH_   "$config_files" $ARCH_LIST
3248 print_config HAVE_   "$config_files" $HAVE_LIST
3249 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3250                                      $CONFIG_EXTRA      \
3251                                      $DECODER_LIST      \
3252                                      $ENCODER_LIST      \
3253                                      $HWACCEL_LIST      \
3254                                      $PARSER_LIST       \
3255                                      $BSF_LIST          \
3256                                      $DEMUXER_LIST      \
3257                                      $MUXER_LIST        \
3258                                      $FILTER_LIST       \
3259                                      $PROTOCOL_LIST     \
3260                                      $INDEV_LIST        \
3261                                      $OUTDEV_LIST       \
3262
3263 cat >>config.mak <<EOF
3264 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3265 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3266 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3267 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3268 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3269 EOF
3270
3271 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3272 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3273
3274 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3275 cp_if_changed $TMPH config.h
3276 touch .config
3277
3278 enabled yasm && cp_if_changed $TMPASM config.asm
3279
3280 cat > $TMPH <<EOF
3281 /* Generated by ffconf */
3282 #ifndef AVUTIL_AVCONFIG_H
3283 #define AVUTIL_AVCONFIG_H
3284 EOF
3285
3286 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3287
3288 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3289
3290 cp_if_changed $TMPH libavutil/avconfig.h
3291
3292 test -n "$WARNINGS" && printf "\n$WARNINGS"
3293
3294 # build pkg-config files
3295
3296 pkgconfig_generate(){
3297 name=$1
3298 shortname=${name#lib}${build_suffix}
3299 comment=$2
3300 version=$3
3301 libs=$4
3302 requires=$5
3303 enabled ${name#lib} || return 0
3304 cat <<EOF > $name/$name.pc
3305 prefix=$prefix
3306 exec_prefix=\${prefix}
3307 libdir=$libdir
3308 includedir=$incdir
3309
3310 Name: $name
3311 Description: $comment
3312 Version: $version
3313 Requires: $(enabled shared || echo $requires)
3314 Requires.private: $(enabled shared && echo $requires)
3315 Conflicts:
3316 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3317 Libs.private: $(enabled shared && echo $libs)
3318 Cflags: -I\${includedir}
3319 EOF
3320 cat <<EOF > $name/$name-uninstalled.pc
3321 prefix=
3322 exec_prefix=
3323 libdir=\${pcfiledir}
3324 includedir=${source_path}
3325
3326 Name: $name
3327 Description: $comment
3328 Version: $version
3329 Requires: $requires
3330 Conflicts:
3331 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3332 Cflags: -I\${includedir}
3333 EOF
3334 }
3335
3336 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3337 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3338 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3339 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3340 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3341 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3342 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3343 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"