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