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 [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-armv5te        disable armv5te optimizations
 227   --disable-armv6          disable armv6 optimizations
 228   --disable-armv6t2        disable armv6t2 optimizations
 229   --disable-armvfp         disable ARM VFP optimizations
 230   --disable-iwmmxt         disable iwmmxt optimizations
 231   --disable-mmi            disable MMI optimizations
 232   --disable-neon           disable neon optimizations
 233   --disable-vis            disable VIS optimizations
 234   --disable-yasm           disable use of yasm assembler
 235   --enable-pic             build position-independent code
 236   --malloc-prefix=PFX      prefix malloc and related names with PFX
 237   --enable-sram            allow use of on-chip SRAM
 238   --disable-symver         disable symbol versioning
 239
 240 Developer options (useful when working on FFmpeg itself):
 241   --disable-debug          disable debugging symbols
 242   --enable-debug=LEVEL     set the debug level [$debuglevel]
 243   --disable-optimizations  disable compiler optimizations
 244   --enable-extra-warnings  enable more compiler warnings
 245   --disable-stripping      disable stripping of executables and shared libraries
 246   --samples=PATH           location of test samples for FATE
 247
 248 NOTE: Object files are built at the place where configure is launched.
 249 EOF
 250   exit 0
 251 }
 252
 253 quotes='""'
 254
 255 log(){
 256     echo "$@" >> $logfile
 257 }
 258
 259 log_file(){
 260     log BEGIN $1
 261     pr -n -t $1 >> $logfile
 262     log END $1
 263 }
 264
 265 echolog(){
 266     log "$@"
 267     echo "$@"
 268 }
 269
 270 warn(){
 271     log "WARNING: $*"
 272     WARNINGS="${WARNINGS}WARNING: $*\n"
 273 }
 274
 275 die(){
 276     echolog "$@"
 277     cat <<EOF
 278
 279 If you think configure made a mistake, make sure you are using the latest
 280 version from SVN.  If the latest version fails, report the problem to the
 281 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 282 EOF
 283     if disabled logging; then
 284         cat <<EOF
 285 Rerun configure with logging enabled (do not use --disable-logging), and
 286 include the log this produces with your report.
 287 EOF
 288     else
 289 cat <<EOF
 290 Include the log file "$logfile" produced by configure as this will help
 291 solving the problem.
 292 EOF
 293     fi
 294     exit 1
 295 }
 296
 297 # Avoid locale weirdness, besides we really just want to translate ASCII.
 298 toupper(){
 299     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 300 }
 301
 302 tolower(){
 303     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 304 }
 305
 306 c_escape(){
 307     echo "$*" | sed 's/["\\]/\\\0/g'
 308 }
 309
 310 sh_quote(){
 311     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 312     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 313     echo "$v"
 314 }
 315
 316 filter(){
 317     pat=$1
 318     shift
 319     for v; do
 320         eval "case $v in $pat) echo $v ;; esac"
 321     done
 322 }
 323
 324 map(){
 325     m=$1
 326     shift
 327     for v; do eval $m; done
 328 }
 329
 330 set_all(){
 331     value=$1
 332     shift
 333     for var in $*; do
 334         eval $var=$value
 335     done
 336 }
 337
 338 set_weak(){
 339     value=$1
 340     shift
 341     for var; do
 342         eval : \${$var:=$value}
 343     done
 344 }
 345
 346 pushvar(){
 347     for var in $*; do
 348         eval level=\${${var}_level:=0}
 349         eval ${var}_${level}="\$$var"
 350         eval ${var}_level=$(($level+1))
 351     done
 352 }
 353
 354 popvar(){
 355     for var in $*; do
 356         eval level=\${${var}_level:-0}
 357         test $level = 0 && continue
 358         eval level=$(($level-1))
 359         eval $var="\${${var}_${level}}"
 360         eval ${var}_level=$level
 361         eval unset ${var}_${level}
 362     done
 363 }
 364
 365 enable(){
 366     set_all yes $*
 367 }
 368
 369 disable(){
 370     set_all no $*
 371 }
 372
 373 enable_weak(){
 374     set_weak yes $*
 375 }
 376
 377 disable_weak(){
 378     set_weak no $*
 379 }
 380
 381 enable_safe(){
 382     for var; do
 383         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 384     done
 385 }
 386
 387 disable_safe(){
 388     for var; do
 389         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 390     done
 391 }
 392
 393 do_enable_deep(){
 394     for var; do
 395         enabled $var && continue
 396         eval sel="\$${var}_select"
 397         eval sgs="\$${var}_suggest"
 398         pushvar var sgs
 399         enable_deep $sel
 400         popvar sgs
 401         enable_deep_weak $sgs
 402         popvar var
 403     done
 404 }
 405
 406 enable_deep(){
 407     do_enable_deep $*
 408     enable $*
 409 }
 410
 411 enable_deep_weak(){
 412     do_enable_deep $*
 413     enable_weak $*
 414 }
 415
 416 enabled(){
 417     test "${1#!}" = "$1" && op== || op=!=
 418     eval test "x\$${1#!}" $op "xyes"
 419 }
 420
 421 disabled(){
 422     test "${1#!}" = "$1" && op== || op=!=
 423     eval test "x\$${1#!}" $op "xno"
 424 }
 425
 426 enabled_all(){
 427     for opt; do
 428         enabled $opt || return 1
 429     done
 430 }
 431
 432 disabled_all(){
 433     for opt; do
 434         disabled $opt || return 1
 435     done
 436 }
 437
 438 enabled_any(){
 439     for opt; do
 440         enabled $opt && return 0
 441     done
 442 }
 443
 444 disabled_any(){
 445     for opt; do
 446         disabled $opt && return 0
 447     done
 448     return 1
 449 }
 450
 451 set_default(){
 452     for opt; do
 453         eval : \${$opt:=\$${opt}_default}
 454     done
 455 }
 456
 457 is_in(){
 458     value=$1
 459     shift
 460     for var in $*; do
 461         [ $var = $value ] && return 0
 462     done
 463     return 1
 464 }
 465
 466 check_deps(){
 467     for cfg; do
 468         cfg="${cfg#!}"
 469         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 470         disabled ${cfg}_checking && continue
 471         enable ${cfg}_checking
 472
 473         eval dep_all="\$${cfg}_deps"
 474         eval dep_any="\$${cfg}_deps_any"
 475         eval dep_sel="\$${cfg}_select"
 476         eval dep_sgs="\$${cfg}_suggest"
 477         eval dep_ifa="\$${cfg}_if"
 478         eval dep_ifn="\$${cfg}_if_any"
 479
 480         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 481         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 482         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 483
 484         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 485         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 486         enabled_all  $dep_all || disable $cfg
 487         enabled_any  $dep_any || disable $cfg
 488         disabled_any $dep_sel && disable $cfg
 489
 490         if enabled $cfg; then
 491             eval dep_extralibs="\$${cfg}_extralibs"
 492             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 493             enable_deep $dep_sel
 494             enable_deep_weak $dep_sgs
 495         fi
 496
 497         disable ${cfg}_checking
 498     done
 499 }
 500
 501 print_config_h(){
 502     enabled $1 && v=1 || v=0
 503     echo "#define $2 $v"
 504 }
 505
 506 print_config_mak(){
 507     enabled $1 && v= || v=!
 508     echo "$v$2=yes"
 509 }
 510
 511 print_config_asm(){
 512     enabled $1 && echo "%define $2"
 513 }
 514
 515 print_config(){
 516     pfx=$1
 517     files=$2
 518     shift 2
 519     for cfg; do
 520         ucname="$(toupper $cfg)"
 521         for f in $files; do
 522             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 523         done
 524     done
 525 }
 526
 527 print_enabled(){
 528     test "$1" = -n && end=" " && shift || end="\n"
 529     suf=$1
 530     shift
 531     for v; do
 532         enabled $v && printf "%s$end" ${v%$suf};
 533     done
 534 }
 535
 536 append(){
 537     var=$1
 538     shift
 539     eval "$var=\"\$$var $*\""
 540 }
 541
 542 prepend(){
 543     var=$1
 544     shift
 545     eval "$var=\"$* \$$var\""
 546 }
 547
 548 add_cppflags(){
 549     append CPPFLAGS $($filter_cppflags "$@")
 550 }
 551
 552 add_cflags(){
 553     append CFLAGS $($filter_cflags "$@")
 554 }
 555
 556 add_asflags(){
 557     append ASFLAGS $($filter_asflags "$@")
 558 }
 559
 560 add_ldflags(){
 561     append LDFLAGS "$@"
 562 }
 563
 564 add_extralibs(){
 565     prepend extralibs "$@"
 566 }
 567
 568 check_cmd(){
 569     log "$@"
 570     "$@" >> $logfile 2>&1
 571 }
 572
 573 check_cc(){
 574     log check_cc "$@"
 575     cat > $TMPC
 576     log_file $TMPC
 577     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 578 }
 579
 580 check_cpp(){
 581     log check_cpp "$@"
 582     cat > $TMPC
 583     log_file $TMPC
 584     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 585 }
 586
 587 check_as(){
 588     log check_as "$@"
 589     cat > $TMPC
 590     log_file $TMPC
 591     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 592 }
 593
 594 check_asm(){
 595     log check_asm "$@"
 596     name="$1"
 597     code="$2"
 598     shift 2
 599     disable $name
 600     check_as "$@" <<EOF && enable $name
 601 void foo(void){ __asm__ volatile($code); }
 602 EOF
 603 }
 604
 605 check_yasm(){
 606     log check_yasm "$@"
 607     echo "$1" > $TMPS
 608     log_file $TMPS
 609     shift 1
 610     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 611 }
 612
 613 check_ld(){
 614     log check_ld "$@"
 615     flags=''
 616     libs=''
 617     for f; do
 618         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 619     done
 620     check_cc $($filter_cflags $flags) || return
 621     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 622 }
 623
 624 check_cppflags(){
 625     log check_cppflags "$@"
 626     set -- $($filter_cppflags "$@")
 627     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 628 int x;
 629 EOF
 630 }
 631
 632 check_cflags(){
 633     log check_cflags "$@"
 634     set -- $($filter_cflags "$@")
 635     check_cc "$@" <<EOF && append CFLAGS "$@"
 636 int x;
 637 EOF
 638 }
 639
 640 test_ldflags(){
 641     log test_ldflags "$@"
 642     check_ld "$@" <<EOF
 643 int main(void){ return 0; }
 644 EOF
 645 }
 646
 647 check_ldflags(){
 648     log check_ldflags "$@"
 649     test_ldflags "$@" && add_ldflags "$@"
 650 }
 651
 652 check_header(){
 653     log check_header "$@"
 654     header=$1
 655     shift
 656     disable_safe $header
 657     check_cpp "$@" <<EOF && enable_safe $header
 658 #include <$header>
 659 int x;
 660 EOF
 661 }
 662
 663 check_func(){
 664     log check_func "$@"
 665     func=$1
 666     shift
 667     disable $func
 668     check_ld "$@" <<EOF && enable $func
 669 extern int $func();
 670 int main(void){ $func(); }
 671 EOF
 672 }
 673
 674 check_mathfunc(){
 675     log check_mathfunc "$@"
 676     func=$1
 677     shift
 678     disable $func
 679     check_ld "$@" <<EOF && enable $func
 680 #include <math.h>
 681 float foo(float f) { return $func(f); }
 682 int main(void){ return 0; }
 683 EOF
 684 }
 685
 686 check_func_headers(){
 687     log check_func_headers "$@"
 688     headers=$1
 689     func=$2
 690     shift 2
 691     disable $func
 692     incs=""
 693     for hdr in $headers; do
 694         incs="$incs
 695 #include <$hdr>"
 696     done
 697     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 698 $incs
 699 int main(int argc, char **argv){
 700     return (long) $func;
 701 }
 702 EOF
 703 }
 704
 705 check_cpp_condition(){
 706     log check_cpp_condition "$@"
 707     header=$1
 708     condition=$2
 709     shift 2
 710     check_cpp $($filter_cppflags "$@") <<EOF
 711 #include <$header>
 712 #if !($condition)
 713 #error "unsatisfied condition: $condition"
 714 #endif
 715 EOF
 716 }
 717
 718 check_lib(){
 719     log check_lib "$@"
 720     header="$1"
 721     func="$2"
 722     shift 2
 723     check_header $header && check_func $func "$@" && add_extralibs "$@"
 724 }
 725
 726 check_lib2(){
 727     log check_lib2 "$@"
 728     headers="$1"
 729     func="$2"
 730     shift 2
 731     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 732 }
 733
 734 check_exec(){
 735     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 736 }
 737
 738 check_exec_crash(){
 739     code=$(cat)
 740
 741     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 742     # are safe but may not be available everywhere.  Thus we use
 743     # raise(SIGTERM) instead.  The check is run in a subshell so we
 744     # can redirect the "Terminated" message from the shell.  SIGBUS
 745     # is not defined by standard C so it is used conditionally.
 746
 747     (check_exec "$@") >> $logfile 2>&1 <<EOF
 748 #include <signal.h>
 749 static void sighandler(int sig){
 750     raise(SIGTERM);
 751 }
 752 int main(void){
 753     signal(SIGILL, sighandler);
 754     signal(SIGFPE, sighandler);
 755     signal(SIGSEGV, sighandler);
 756 #ifdef SIGBUS
 757     signal(SIGBUS, sighandler);
 758 #endif
 759     { $code }
 760 }
 761 EOF
 762 }
 763
 764 check_type(){
 765     log check_type "$@"
 766     headers=$1
 767     type=$2
 768     shift 2
 769     disable_safe "$type"
 770     incs=""
 771     for hdr in $headers; do
 772         incs="$incs
 773 #include <$hdr>"
 774     done
 775     check_cc "$@" <<EOF && enable_safe "$type"
 776 $incs
 777 $type v;
 778 EOF
 779 }
 780
 781 check_struct(){
 782     log check_type "$@"
 783     headers=$1
 784     struct=$2
 785     member=$3
 786     shift 3
 787     disable_safe "${struct}_${member}"
 788     incs=""
 789     for hdr in $headers; do
 790         incs="$incs
 791 #include <$hdr>"
 792     done
 793     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 794 $incs
 795 const void *p = &(($struct *)0)->$member;
 796 EOF
 797 }
 798
 799 require(){
 800     name="$1"
 801     header="$2"
 802     func="$3"
 803     shift 3
 804     check_lib $header $func "$@" || die "ERROR: $name not found"
 805 }
 806
 807 require2(){
 808     name="$1"
 809     headers="$2"
 810     func="$3"
 811     shift 3
 812     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 813 }
 814
 815 check_host_cc(){
 816     log check_host_cc "$@"
 817     cat > $TMPC
 818     log_file $TMPC
 819     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 820 }
 821
 822 check_host_cflags(){
 823     log check_host_cflags "$@"
 824     check_host_cc "$@" <<EOF && append host_cflags "$@"
 825 int x;
 826 EOF
 827 }
 828
 829 apply(){
 830     file=$1
 831     shift
 832     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 833 }
 834
 835 cp_if_changed(){
 836     cmp -s "$1" "$2" &&
 837         echo "$2 is unchanged" ||
 838         cp -f "$1" "$2"
 839 }
 840
 841 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 842 # system-dependent things.
 843
 844 COMPONENT_LIST="
 845     bsfs
 846     decoders
 847     demuxers
 848     encoders
 849     filters
 850     hwaccels
 851     indevs
 852     muxers
 853     outdevs
 854     parsers
 855     protocols
 856 "
 857
 858 CONFIG_LIST="
 859     $COMPONENT_LIST
 860     aandct
 861     avcodec
 862     avcore
 863     avdevice
 864     avfilter
 865     avformat
 866     avisynth
 867     bzlib
 868     dct
 869     doc
 870     dwt
 871     dxva2
 872     fastdiv
 873     ffmpeg
 874     ffplay
 875     ffprobe
 876     ffserver
 877     fft
 878     frei0r
 879     golomb
 880     gpl
 881     gray
 882     h264dsp
 883     h264pred
 884     hardcoded_tables
 885     huffman
 886     libdc1394
 887     libdirac
 888     libfaac
 889     libgsm
 890     libmp3lame
 891     libnut
 892     libopencore_amrnb
 893     libopencore_amrwb
 894     libopencv
 895     libopenjpeg
 896     librtmp
 897     libschroedinger
 898     libspeex
 899     libtheora
 900     libvorbis
 901     libvpx
 902     libx264
 903     libxavs
 904     libxvid
 905     lpc
 906     lsp
 907     mdct
 908     memalign_hack
 909     mlib
 910     mpegaudio_hp
 911     network
 912     nonfree
 913     pic
 914     postproc
 915     rdft
 916     rtpdec
 917     runtime_cpudetect
 918     shared
 919     small
 920     sram
 921     static
 922     swscale
 923     swscale_alpha
 924     vaapi
 925     vdpau
 926     version3
 927     x11grab
 928     zlib
 929 "
 930
 931 THREADS_LIST='
 932     pthreads
 933     w32threads
 934 '
 935
 936 ARCH_LIST='
 937     alpha
 938     arm
 939     avr32
 940     avr32_ap
 941     avr32_uc
 942     bfin
 943     ia64
 944     m68k
 945     mips
 946     mips64
 947     parisc
 948     ppc
 949     ppc64
 950     s390
 951     sh4
 952     sparc
 953     sparc64
 954     tomi
 955     x86
 956     x86_32
 957     x86_64
 958 '
 959
 960 ARCH_EXT_LIST='
 961     altivec
 962     amd3dnow
 963     amd3dnowext
 964     armv5te
 965     armv6
 966     armv6t2
 967     armvfp
 968     iwmmxt
 969     mmi
 970     mmx
 971     mmx2
 972     neon
 973     ppc4xx
 974     sse
 975     ssse3
 976     vis
 977 '
 978
 979 HAVE_LIST_PUB='
 980     bigendian
 981     fast_unaligned
 982 '
 983
 984 HAVE_LIST="
 985     $ARCH_EXT_LIST
 986     $HAVE_LIST_PUB
 987     $THREADS_LIST
 988     aligned_stack
 989     alsa_asoundlib_h
 990     altivec_h
 991     arpa_inet_h
 992     attribute_may_alias
 993     attribute_packed
 994     bswap
 995     closesocket
 996     cmov
 997     conio_h
 998     dcbzl
 999     dev_bktr_ioctl_bt848_h
1000     dev_bktr_ioctl_meteor_h
1001     dev_ic_bt8xx_h
1002     dev_video_meteor_ioctl_meteor_h
1003     dev_video_bktr_ioctl_bt848_h
1004     dlfcn_h
1005     dlopen
1006     dos_paths
1007     ebp_available
1008     ebx_available
1009     exp2
1010     exp2f
1011     fast_64bit
1012     fast_clz
1013     fast_cmov
1014     fcntl
1015     fork
1016     getaddrinfo
1017     gethrtime
1018     GetProcessMemoryInfo
1019     GetProcessTimes
1020     getrusage
1021     gnu_as
1022     struct_rusage_ru_maxrss
1023     ibm_asm
1024     inet_aton
1025     inline_asm
1026     isatty
1027     ldbrx
1028     libdc1394_1
1029     libdc1394_2
1030     llrint
1031     llrintf
1032     local_aligned_16
1033     local_aligned_8
1034     log2
1035     log2f
1036     loongson
1037     lrint
1038     lrintf
1039     lzo1x_999_compress
1040     machine_ioctl_bt848_h
1041     machine_ioctl_meteor_h
1042     malloc_h
1043     memalign
1044     mkstemp
1045     pld
1046     posix_memalign
1047     round
1048     roundf
1049     sdl
1050     sdl_video_size
1051     setmode
1052     socklen_t
1053     soundcard_h
1054     poll_h
1055     setrlimit
1056     strerror_r
1057     strtok_r
1058     struct_addrinfo
1059     struct_ipv6_mreq
1060     struct_sockaddr_in6
1061     struct_sockaddr_sa_len
1062     struct_sockaddr_storage
1063     symver
1064     symver_gnu_asm
1065     symver_asm_label
1066     sys_mman_h
1067     sys_resource_h
1068     sys_select_h
1069     sys_soundcard_h
1070     sys_videoio_h
1071     ten_operands
1072     termios_h
1073     threads
1074     truncf
1075     vfp_args
1076     VirtualAlloc
1077     winsock2_h
1078     xform_asm
1079     xmm_clobbers
1080     yasm
1081 "
1082
1083 # options emitted with CONFIG_ prefix but not available on command line
1084 CONFIG_EXTRA="
1085     avutil
1086     gplv3
1087     lgplv3
1088 "
1089
1090 CMDLINE_SELECT="
1091     $ARCH_EXT_LIST
1092     $CONFIG_LIST
1093     $THREADS_LIST
1094     asm
1095     cross_compile
1096     debug
1097     extra_warnings
1098     logging
1099     optimizations
1100     stripping
1101     symver
1102     yasm
1103 "
1104
1105 PATHS_LIST='
1106     bindir
1107     datadir
1108     incdir
1109     libdir
1110     mandir
1111     prefix
1112     shlibdir
1113 '
1114
1115 CMDLINE_SET="
1116     $PATHS_LIST
1117     ar
1118     arch
1119     as
1120     build_suffix
1121     cc
1122     cpu
1123     cross_prefix
1124     dep_cc
1125     extra_version
1126     host_cc
1127     host_cflags
1128     host_ldflags
1129     host_libs
1130     host_os
1131     ld
1132     logfile
1133     malloc_prefix
1134     nm
1135     samples
1136     source_path
1137     strip
1138     sysinclude
1139     sysroot
1140     target_exec
1141     target_os
1142     target_path
1143 "
1144
1145 CMDLINE_APPEND="
1146     extra_cflags
1147 "
1148
1149 # code dependency declarations
1150
1151 # architecture extensions
1152
1153 armv5te_deps="arm"
1154 armv6_deps="arm"
1155 armv6t2_deps="arm"
1156 armvfp_deps="arm"
1157 iwmmxt_deps="arm"
1158 neon_deps="arm"
1159
1160 mmi_deps="mips"
1161
1162 altivec_deps="ppc"
1163 ppc4xx_deps="ppc"
1164
1165 vis_deps="sparc"
1166
1167 x86_64_suggest="cmov fast_cmov"
1168 amd3dnow_deps="mmx"
1169 amd3dnowext_deps="amd3dnow"
1170 mmx_deps="x86"
1171 mmx2_deps="mmx"
1172 sse_deps="mmx"
1173 ssse3_deps="sse"
1174
1175 aligned_stack_if_any="ppc x86"
1176 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1177 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1178 fast_unaligned_if_any="armv6 ppc x86"
1179
1180 need_memalign="altivec neon sse"
1181 inline_asm_deps="!tms470"
1182
1183 symver_if_any="symver_asm_label symver_gnu_asm"
1184
1185 # subsystems
1186 dct_select="rdft"
1187 mdct_select="fft"
1188 rdft_select="fft"
1189
1190 # decoders / encoders / hardware accelerators
1191 aac_decoder_select="mdct rdft"
1192 aac_encoder_select="mdct"
1193 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1194 ac3_decoder_select="mdct ac3_parser"
1195 alac_encoder_select="lpc"
1196 amrnb_decoder_select="lsp"
1197 atrac1_decoder_select="mdct"
1198 atrac3_decoder_select="mdct"
1199 binkaudio_dct_decoder_select="mdct rdft dct"
1200 binkaudio_rdft_decoder_select="mdct rdft"
1201 cavs_decoder_select="golomb"
1202 cook_decoder_select="mdct"
1203 cscd_decoder_suggest="zlib"
1204 dca_decoder_select="mdct"
1205 dnxhd_encoder_select="aandct"
1206 dxa_decoder_select="zlib"
1207 eac3_decoder_select="ac3_decoder"
1208 eamad_decoder_select="aandct"
1209 eatgq_decoder_select="aandct"
1210 eatqi_decoder_select="aandct"
1211 ffv1_decoder_select="golomb"
1212 flac_decoder_select="golomb"
1213 flac_encoder_select="golomb lpc"
1214 flashsv_decoder_select="zlib"
1215 flashsv_encoder_select="zlib"
1216 flv_decoder_select="h263_decoder"
1217 flv_encoder_select="h263_encoder"
1218 fraps_decoder_select="huffman"
1219 h261_encoder_select="aandct"
1220 h263_decoder_select="h263_parser"
1221 h263_encoder_select="aandct"
1222 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1223 h263i_decoder_select="h263_decoder"
1224 h263p_encoder_select="h263_encoder"
1225 h264_decoder_select="golomb h264dsp h264pred"
1226 h264_dxva2_hwaccel_deps="dxva2api_h"
1227 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1228 h264_vaapi_hwaccel_select="vaapi"
1229 h264_vdpau_decoder_select="vdpau h264_decoder"
1230 imc_decoder_select="fft mdct"
1231 jpegls_decoder_select="golomb"
1232 jpegls_encoder_select="golomb"
1233 ljpeg_encoder_select="aandct"
1234 loco_decoder_select="golomb"
1235 mjpeg_encoder_select="aandct"
1236 mlp_decoder_select="mlp_parser"
1237 mp1float_decoder_select="dct"
1238 mp2float_decoder_select="dct"
1239 mp3adufloat_decoder_select="dct"
1240 mp3float_decoder_select="dct"
1241 mp3on4float_decoder_select="dct"
1242 mpeg1video_encoder_select="aandct"
1243 mpeg2video_encoder_select="aandct"
1244 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1245 mpeg4_encoder_select="h263_encoder"
1246 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1247 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1248 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1249 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1250 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1251 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1252 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1253 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1254 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1255 msmpeg4v1_decoder_select="h263_decoder"
1256 msmpeg4v1_encoder_select="h263_encoder"
1257 msmpeg4v2_decoder_select="h263_decoder"
1258 msmpeg4v2_encoder_select="h263_encoder"
1259 msmpeg4v3_decoder_select="h263_decoder"
1260 msmpeg4v3_encoder_select="h263_encoder"
1261 nellymoser_decoder_select="mdct"
1262 nellymoser_encoder_select="mdct"
1263 png_decoder_select="zlib"
1264 png_encoder_select="zlib"
1265 qcelp_decoder_select="lsp"
1266 qdm2_decoder_select="mdct rdft"
1267 ra_144_encoder_select="lpc"
1268 rv10_decoder_select="h263_decoder"
1269 rv10_encoder_select="h263_encoder"
1270 rv20_decoder_select="h263_decoder"
1271 rv20_encoder_select="h263_encoder"
1272 rv30_decoder_select="golomb h264pred"
1273 rv40_decoder_select="golomb h264pred"
1274 shorten_decoder_select="golomb"
1275 sipr_decoder_select="lsp"
1276 snow_decoder_select="dwt"
1277 snow_encoder_select="aandct dwt"
1278 sonic_decoder_select="golomb"
1279 sonic_encoder_select="golomb"
1280 sonic_ls_encoder_select="golomb"
1281 svq1_encoder_select="aandct"
1282 svq3_decoder_select="golomb h264dsp h264pred"
1283 svq3_decoder_suggest="zlib"
1284 theora_decoder_select="vp3_decoder"
1285 tiff_decoder_suggest="zlib"
1286 tiff_encoder_suggest="zlib"
1287 truehd_decoder_select="mlp_decoder"
1288 tscc_decoder_select="zlib"
1289 twinvq_decoder_select="mdct lsp"
1290 vc1_decoder_select="h263_decoder"
1291 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1292 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1293 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1294 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1295 vorbis_decoder_select="mdct"
1296 vorbis_encoder_select="mdct"
1297 vp6_decoder_select="huffman"
1298 vp6a_decoder_select="vp6_decoder"
1299 vp6f_decoder_select="vp6_decoder"
1300 vp8_decoder_select="h264pred"
1301 wmapro_decoder_select="mdct"
1302 wmav1_decoder_select="mdct"
1303 wmav1_encoder_select="mdct"
1304 wmav2_decoder_select="mdct"
1305 wmav2_encoder_select="mdct"
1306 wmavoice_decoder_select="lsp rdft dct mdct"
1307 wmv1_decoder_select="h263_decoder"
1308 wmv1_encoder_select="h263_encoder"
1309 wmv2_decoder_select="h263_decoder"
1310 wmv2_encoder_select="h263_encoder"
1311 wmv3_decoder_select="vc1_decoder"
1312 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1313 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1314 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1315 zlib_decoder_select="zlib"
1316 zlib_encoder_select="zlib"
1317 zmbv_decoder_select="zlib"
1318 zmbv_encoder_select="zlib"
1319
1320 vaapi_deps="va_va_h"
1321 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1322
1323 # parsers
1324 h264_parser_select="golomb h264dsp h264pred"
1325
1326 # external libraries
1327 libdirac_decoder_deps="libdirac !libschroedinger"
1328 libdirac_encoder_deps="libdirac"
1329 libfaac_encoder_deps="libfaac"
1330 libgsm_decoder_deps="libgsm"
1331 libgsm_encoder_deps="libgsm"
1332 libgsm_ms_decoder_deps="libgsm"
1333 libgsm_ms_encoder_deps="libgsm"
1334 libmp3lame_encoder_deps="libmp3lame"
1335 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1336 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1337 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1338 libopenjpeg_decoder_deps="libopenjpeg"
1339 libschroedinger_decoder_deps="libschroedinger"
1340 libschroedinger_encoder_deps="libschroedinger"
1341 libspeex_decoder_deps="libspeex"
1342 libtheora_encoder_deps="libtheora"
1343 libvorbis_encoder_deps="libvorbis"
1344 libvpx_decoder_deps="libvpx"
1345 libvpx_encoder_deps="libvpx"
1346 libx264_encoder_deps="libx264"
1347 libxavs_encoder_deps="libxavs"
1348 libxvid_encoder_deps="libxvid"
1349
1350 # demuxers / muxers
1351 ac3_demuxer_deps="ac3_parser"
1352 asf_stream_muxer_select="asf_muxer"
1353 avisynth_demuxer_deps="avisynth"
1354 dirac_demuxer_deps="dirac_parser"
1355 eac3_demuxer_select="ac3_parser"
1356 flac_demuxer_deps="flac_parser"
1357 ipod_muxer_select="mov_muxer"
1358 libnut_demuxer_deps="libnut"
1359 libnut_muxer_deps="libnut"
1360 matroska_audio_muxer_select="matroska_muxer"
1361 matroska_demuxer_suggest="zlib bzlib"
1362 mov_demuxer_suggest="zlib"
1363 mp3_demuxer_deps="mpegaudio_parser"
1364 mp4_muxer_select="mov_muxer"
1365 mpegtsraw_demuxer_select="mpegts_demuxer"
1366 mxf_d10_muxer_select="mxf_muxer"
1367 ogg_demuxer_select="golomb"
1368 psp_muxer_select="mov_muxer"
1369 rtp_demuxer_select="sdp_demuxer"
1370 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1371 rtsp_demuxer_select="http_protocol rtpdec"
1372 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1373 sap_demuxer_select="sdp_demuxer"
1374 sap_muxer_select="rtp_muxer rtp_protocol"
1375 sdp_demuxer_select="rtpdec"
1376 spdif_muxer_select="aac_parser"
1377 tg2_muxer_select="mov_muxer"
1378 tgp_muxer_select="mov_muxer"
1379 w64_demuxer_deps="wav_demuxer"
1380
1381 # indevs / outdevs
1382 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1383 alsa_outdev_deps="alsa_asoundlib_h"
1384 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1385 dv1394_indev_deps="dv1394 dv_demuxer"
1386 jack_indev_deps="jack_jack_h"
1387 libdc1394_indev_deps="libdc1394"
1388 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1389 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1390 v4l_indev_deps="linux_videodev_h"
1391 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1392 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1393 vfwcap_indev_extralibs="-lavicap32"
1394 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1395 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1396
1397 # protocols
1398 gopher_protocol_deps="network"
1399 http_protocol_deps="network"
1400 http_protocol_select="tcp_protocol"
1401 mmsh_protocol_select="http_protocol"
1402 mmst_protocol_deps="network"
1403 rtmp_protocol_select="tcp_protocol"
1404 rtp_protocol_select="udp_protocol"
1405 tcp_protocol_deps="network"
1406 udp_protocol_deps="network"
1407
1408 # filters
1409 blackframe_filter_deps="gpl"
1410 cropdetect_filter_deps="gpl"
1411 frei0r_filter_deps="frei0r dlopen strtok_r"
1412 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1413 hqdn3d_filter_deps="gpl"
1414 ocv_smooth_filter_deps="libopencv"
1415 yadif_filter_deps="gpl"
1416
1417 # libraries
1418 avdevice_deps="avcodec avformat"
1419 avformat_deps="avcodec"
1420
1421 # programs
1422 ffmpeg_deps="avcodec avformat swscale"
1423 ffmpeg_select="buffer_filter"
1424 ffplay_deps="avcodec avformat swscale sdl"
1425 ffplay_select="rdft"
1426 ffprobe_deps="avcodec avformat"
1427 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1428 ffserver_extralibs='$ldl'
1429
1430 doc_deps="texi2html"
1431
1432 # tests
1433
1434 test_deps(){
1435     suf1=$1
1436     suf2=$2
1437     shift 2
1438     for v; do
1439         dep=${v%=*}
1440         tests=${v#*=}
1441         for name in ${tests}; do
1442             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1443         done
1444     done
1445 }
1446
1447 set_ne_test_deps(){
1448     eval ${1}_be_test_deps="bigendian"
1449     eval ${1}_le_test_deps="!bigendian"
1450 }
1451
1452 test_deps _encoder _decoder                                             \
1453     ac3                                                                 \
1454     adpcm_g726=g726                                                     \
1455     adpcm_ima_qt                                                        \
1456     adpcm_ima_wav                                                       \
1457     adpcm_ms                                                            \
1458     adpcm_swf                                                           \
1459     adpcm_yamaha=adpcm_yam                                              \
1460     alac                                                                \
1461     asv1                                                                \
1462     asv2                                                                \
1463     bmp                                                                 \
1464     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1465     dvvideo="dv dv50"                                                   \
1466     ffv1                                                                \
1467     flac                                                                \
1468     flashsv                                                             \
1469     flv                                                                 \
1470     gif                                                                 \
1471     h261                                                                \
1472     h263="h263 h263p"                                                   \
1473     huffyuv                                                             \
1474     jpegls                                                              \
1475     mjpeg="jpg mjpeg ljpeg"                                             \
1476     mp2                                                                 \
1477     mpeg1video="mpeg mpeg1b"                                            \
1478     mpeg2video="mpeg2 mpeg2thread"                                      \
1479     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1480     msmpeg4v3=msmpeg4                                                   \
1481     msmpeg4v2                                                           \
1482     pbm=pbmpipe                                                         \
1483     pcx                                                                 \
1484     pgm="pgm pgmpipe"                                                   \
1485     ppm="ppm ppmpipe"                                                   \
1486     rawvideo="rgb yuv"                                                  \
1487     roq                                                                 \
1488     rv10                                                                \
1489     rv20                                                                \
1490     sgi                                                                 \
1491     snow="snow snowll"                                                  \
1492     svq1                                                                \
1493     targa=tga                                                           \
1494     tiff                                                                \
1495     wmav1                                                               \
1496     wmav2                                                               \
1497     wmv1                                                                \
1498     wmv2                                                                \
1499
1500 test_deps _muxer _demuxer                                               \
1501     aiff                                                                \
1502     pcm_alaw=alaw                                                       \
1503     asf                                                                 \
1504     au                                                                  \
1505     avi                                                                 \
1506     dv=dv_fmt                                                           \
1507     ffm                                                                 \
1508     flv=flv_fmt                                                         \
1509     gxf                                                                 \
1510     matroska=mkv                                                        \
1511     mmf                                                                 \
1512     mov                                                                 \
1513     pcm_mulaw=mulaw                                                     \
1514     mxf                                                                 \
1515     nut                                                                 \
1516     ogg                                                                 \
1517     rawvideo=pixfmt                                                     \
1518     rm                                                                  \
1519     swf                                                                 \
1520     mpegts=ts                                                           \
1521     voc                                                                 \
1522     wav                                                                 \
1523     yuv4mpegpipe=yuv4mpeg                                               \
1524
1525 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1526
1527 set_ne_test_deps pixdesc
1528 set_ne_test_deps pixfmts_crop
1529 set_ne_test_deps pixfmts_hflip
1530 set_ne_test_deps pixfmts_null
1531 set_ne_test_deps pixfmts_pad
1532 set_ne_test_deps pixfmts_scale
1533 set_ne_test_deps pixfmts_vflip
1534
1535 # default parameters
1536
1537 logfile="config.log"
1538
1539 # installation paths
1540 prefix_default="/usr/local"
1541 bindir_default='${prefix}/bin'
1542 datadir_default='${prefix}/share/ffmpeg'
1543 incdir_default='${prefix}/include'
1544 libdir_default='${prefix}/lib'
1545 mandir_default='${prefix}/share/man'
1546 shlibdir_default="$libdir_default"
1547
1548 # toolchain
1549 ar_default="ar"
1550 cc_default="gcc"
1551 cc_version=\"unknown\"
1552 host_cc_default="gcc"
1553 ln_s="ln -sf"
1554 nm_default="nm"
1555 objformat="elf"
1556 ranlib="ranlib"
1557 strip_default="strip"
1558 yasmexe="yasm"
1559 nogas=":"
1560
1561 nm_opts='-g'
1562
1563 # machine
1564 arch_default=$(uname -m)
1565 cpu="generic"
1566
1567 # OS
1568 target_os_default=$(tolower $(uname -s))
1569 host_os=$target_os_default
1570
1571 # configurable options
1572 enable avcodec
1573 enable avcore
1574 enable avdevice
1575 enable avfilter
1576 enable avformat
1577 enable avutil
1578 enable asm
1579 enable debug
1580 enable doc
1581 enable fastdiv
1582 enable ffmpeg
1583 enable ffplay
1584 enable ffprobe
1585 enable ffserver
1586 enable mpegaudio_hp
1587 enable network
1588 enable optimizations
1589 enable protocols
1590 enable static
1591 enable stripping
1592 enable swscale
1593 enable swscale_alpha
1594
1595 # build settings
1596 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1597 FFSERVERLDFLAGS=-Wl,-E
1598 LIBPREF="lib"
1599 LIBSUF=".a"
1600 FULLNAME='$(NAME)$(BUILDSUF)'
1601 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1602 SLIBPREF="lib"
1603 SLIBSUF=".so"
1604 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1605 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1606 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1607 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1608
1609 CC_O='-o $@'
1610
1611 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1612 host_libs='-lm'
1613
1614 target_path='$(CURDIR)'
1615
1616 # since the object filename is not given with the -MM flag, the compiler
1617 # is only able to print the basename, and we must add the path ourselves
1618 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1619 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1620
1621 # find source path
1622 source_path="$(dirname "$0")"
1623 enable source_path_used
1624 if test -f configure; then
1625     source_path="$(pwd)"
1626     disable source_path_used
1627 else
1628     source_path="$(cd "$source_path"; pwd)"
1629     echo "$source_path" | grep -q '[[:blank:]]' &&
1630         die "Out of tree builds are impossible with whitespace in source path."
1631     test -e "$source_path/config.h" &&
1632         die "Out of tree builds are impossible with config.h in source dir."
1633 fi
1634
1635 for v in "$@"; do
1636     r=${v#*=}
1637     l=${v%"$r"}
1638     r=$(sh_quote "$r")
1639     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1640 done
1641
1642 find_things(){
1643     thing=$1
1644     pattern=$2
1645     file=$source_path/$3
1646     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1647 }
1648
1649 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1650 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1651 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1652 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1653 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1654 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1655 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1656 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1657 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1658 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1659 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1660
1661 find_tests(){
1662     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1663 }
1664
1665 ACODEC_TESTS=$(find_tests acodec)
1666 VCODEC_TESTS=$(find_tests vsynth1)
1667 LAVF_TESTS=$(find_tests lavf)
1668 LAVFI_TESTS=$(find_tests lavfi)
1669 SEEK_TESTS=$(find_tests seek seek_)
1670
1671 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1672
1673 for n in $COMPONENT_LIST; do
1674     v=$(toupper ${n%s})_LIST
1675     eval enable \$$v
1676     eval ${n}_if_any="\$$v"
1677 done
1678
1679 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1680
1681 die_unknown(){
1682     echo "Unknown option \"$1\"."
1683     echo "See $0 --help for available options."
1684     exit 1
1685 }
1686
1687 show_list() {
1688     suffix=_$1
1689     shift
1690     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1691     exit 0
1692 }
1693
1694 for opt do
1695     optval="${opt#*=}"
1696     case "$opt" in
1697     --extra-ldflags=*) add_ldflags $optval
1698     ;;
1699     --extra-libs=*) add_extralibs $optval
1700     ;;
1701     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1702     ;;
1703     --enable-debug=*) debuglevel="$optval"
1704     ;;
1705     --disable-everything)
1706     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1707     ;;
1708     --enable-*=*|--disable-*=*)
1709     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1710     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1711     eval list=\$$(toupper $thing)_LIST
1712     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1713     $action $(filter "$name" $list)
1714     ;;
1715     --enable-?*|--disable-?*)
1716     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1717     if is_in $option $COMPONENT_LIST; then
1718         test $action = disable && action=unset
1719         eval $action \$$(toupper ${option%s})_LIST
1720     elif is_in $option $CMDLINE_SELECT; then
1721         $action $option
1722     else
1723         die_unknown $opt
1724     fi
1725     ;;
1726     --list-*)
1727         NAME="${opt#--list-}"
1728         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1729         NAME=${NAME%s}
1730         eval show_list $NAME \$$(toupper $NAME)_LIST
1731     ;;
1732     --help|-h) show_help
1733     ;;
1734     *)
1735     optname="${opt%%=*}"
1736     optname="${optname#--}"
1737     optname=$(echo "$optname" | sed 's/-/_/g')
1738     if is_in $optname $CMDLINE_SET; then
1739         eval $optname='$optval'
1740     elif is_in $optname $CMDLINE_APPEND; then
1741         append $optname "$optval"
1742     else
1743          die_unknown $opt
1744     fi
1745     ;;
1746     esac
1747 done
1748
1749 disabled logging && logfile=/dev/null
1750
1751 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1752 set >> $logfile
1753
1754 test -n "$cross_prefix" && enable cross_compile
1755
1756 if enabled cross_compile; then
1757     test -n "$arch" && test -n "$target_os" ||
1758         die "Must specify target arch and OS when cross-compiling"
1759 fi
1760
1761 set_default arch target_os
1762
1763 ar_default="${cross_prefix}${ar_default}"
1764 cc_default="${cross_prefix}${cc_default}"
1765 nm_default="${cross_prefix}${nm_default}"
1766 ranlib="${cross_prefix}${ranlib}"
1767 strip_default="${cross_prefix}${strip_default}"
1768
1769 sysinclude_default="${sysroot}/usr/include"
1770
1771 set_default cc nm strip sysinclude
1772 enabled cross_compile || host_cc_default=$cc
1773 set_default host_cc
1774
1775 exesuf() {
1776     case $1 in
1777         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1778     esac
1779 }
1780
1781 EXESUF=$(exesuf $target_os)
1782 HOSTEXESUF=$(exesuf $host_os)
1783
1784 # set temporary file name
1785 : ${TMPDIR:=$TEMPDIR}
1786 : ${TMPDIR:=$TMP}
1787 : ${TMPDIR:=/tmp}
1788
1789 if ! check_cmd type mktemp; then
1790     # simple replacement for missing mktemp
1791     # NOT SAFE FOR GENERAL USE
1792     mktemp(){
1793         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1794     }
1795 fi
1796
1797 tmpfile(){
1798     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1799         (set -C; exec > $tmp) 2>/dev/null ||
1800         die "Unable to create temporary file in $TMPDIR."
1801     append TMPFILES $tmp
1802     eval $1=$tmp
1803 }
1804
1805 trap 'rm -f -- $TMPFILES' EXIT
1806 trap exit HUP INT TERM
1807
1808 tmpfile TMPC  .c
1809 tmpfile TMPE  $EXESUF
1810 tmpfile TMPH  .h
1811 tmpfile TMPO  .o
1812 tmpfile TMPS  .S
1813 tmpfile TMPV  .ver
1814 tmpfile TMPSH .sh
1815 tmpfile TMPASM .asm
1816
1817 unset -f mktemp
1818
1819 # make sure we can execute files in $TMPDIR
1820 cat > $TMPSH 2>> $logfile <<EOF
1821 #! /bin/sh
1822 EOF
1823 chmod +x $TMPSH >> $logfile 2>&1
1824 if ! $TMPSH >> $logfile 2>&1; then
1825     cat <<EOF
1826 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1827 variable to another directory and make sure that it is not mounted noexec.
1828 EOF
1829     die "Sanity test failed."
1830 fi
1831
1832 filter_cflags=echo
1833 filter_cppflags=echo
1834 filter_asflags=echo
1835
1836 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1837     cc_type=llvm_gcc
1838     cc_version=__VERSION__
1839     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1840     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1841     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1842     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1843     speed_cflags='-O3'
1844     size_cflags='-Os'
1845 elif $cc -v 2>&1 | grep -qi ^gcc; then
1846     cc_type=gcc
1847     cc_version=__VERSION__
1848     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1849     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1850     if ! $cc -dumpversion | grep -q '^2\.'; then
1851         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1852         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1853     fi
1854     speed_cflags='-O3'
1855     size_cflags='-Os'
1856 elif $cc --version 2>/dev/null | grep -q Intel; then
1857     cc_type=icc
1858     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1859     cc_ident=$($cc --version | head -n1)
1860     icc_version=$($cc -dumpversion)
1861     CC_DEPFLAGS='-MMD'
1862     AS_DEPFLAGS='-MMD'
1863     speed_cflags='-O3'
1864     size_cflags='-Os'
1865     noopt_cflags='-O1'
1866 elif $cc -v 2>&1 | grep -q xlc; then
1867     cc_type=xlc
1868     cc_version="AV_STRINGIFY(__IBMC__)"
1869     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1870     speed_cflags='-O5'
1871     size_cflags='-O5 -qcompact'
1872 elif $cc -V 2>/dev/null | grep -q Compaq; then
1873     cc_type=ccc
1874     cc_version="AV_STRINGIFY(__DECC_VER)"
1875     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1876     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1877     debuglevel=3
1878     add_ldflags -Wl,-z,now # calls to libots crash without this
1879     speed_cflags='-fast'
1880     size_cflags='-O1'
1881 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1882     test -d "$sysroot" || die "No valid sysroot specified."
1883     cc_type=armcc
1884     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1885     cc_ident=$($cc --vsn | head -n1)
1886     armcc_conf="$PWD/armcc.conf"
1887     $cc --arm_linux_configure                 \
1888         --arm_linux_config_file="$armcc_conf" \
1889         --configure_sysroot="$sysroot"        \
1890         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1891         die "Error creating armcc configuration file."
1892     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1893     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1894     as_default="${cross_prefix}gcc"
1895     CC_DEPFLAGS='-MMD'
1896     AS_DEPFLAGS='-MMD'
1897     speed_cflags='-O3'
1898     size_cflags='-Os'
1899 elif $cc -version 2>/dev/null | grep -q TMS470; then
1900     cc_type=tms470
1901     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1902     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1903     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1904     CC_O='-fr=$(@D)'
1905     as_default="${cross_prefix}gcc"
1906     ld_default="${cross_prefix}gcc"
1907     TMPO=$(basename $TMPC .c).o
1908     append TMPFILES $TMPO
1909     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1910     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1911     AS_DEPFLAGS='-MMD'
1912     speed_cflags='-O3 -mf=5'
1913     size_cflags='-O3 -mf=2'
1914     filter_cflags=tms470_flags
1915     tms470_flags(){
1916         for flag; do
1917             case $flag in
1918                 -march=*|-mcpu=*)
1919                     case "${flag#*=}" in
1920                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1921                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1922                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1923                         armv6*|arm11*)          echo -mv=6   ;;
1924                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1925                                                 echo -mv=5e  ;;
1926                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1927                     esac
1928                     ;;
1929                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1930                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1931                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1932                 -msoft-float)   echo --float_support=vfplib       ;;
1933                 -O[0-3]|-mf=*)  echo $flag                        ;;
1934                 -g)             echo -g -mn                       ;;
1935                 -pds=*)         echo $flag                        ;;
1936             esac
1937         done
1938     }
1939 elif $cc -v 2>&1 | grep -q clang; then
1940     cc_type=clang
1941     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1942         cc_version=__clang_version__ || cc_version=__VERSION__
1943     cc_ident=$($cc --version | head -n1)
1944     CC_DEPFLAGS='-MMD'
1945     AS_DEPFLAGS='-MMD'
1946     speed_cflags='-O3'
1947     size_cflags='-Os'
1948 elif $cc -V 2>&1 | grep -q Sun; then
1949     cc_type=suncc
1950     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1951     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1952     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1953     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1954     speed_cflags='-O5'
1955     size_cflags='-O5 -xspace'
1956     filter_cflags=suncc_flags
1957     suncc_flags(){
1958         for flag; do
1959             case $flag in
1960                 -march=*|-mcpu=*)
1961                     case "${flag#*=}" in
1962                         native)                   echo -xtarget=native       ;;
1963                         v9|niagara)               echo -xarch=sparc          ;;
1964                         ultrasparc)               echo -xarch=sparcvis       ;;
1965                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1966                         i586|pentium)             echo -xchip=pentium        ;;
1967                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1968                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1969                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1970                         pentium4*)          echo -xtarget=pentium4           ;;
1971                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1972                         *-sse3)             echo -xarch=sse3                 ;;
1973                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1974                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1975                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1976                         k8|opteron|athlon64|athlon-fx)
1977                                                   echo -xarch=sse2a          ;;
1978                         athlon*)                  echo -xarch=pentium_proa   ;;
1979                     esac
1980                     ;;
1981                 -std=c99)             echo -xc99              ;;
1982                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1983                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1984                 -W*,*)                echo $flag              ;;
1985                 -f*-*|-W*)                                    ;;
1986                 *)                    echo $flag              ;;
1987             esac
1988         done
1989     }
1990 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1991     cc_type=pathscale
1992     cc_version=__PATHSCALE__
1993     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1994     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1995     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1996     speed_cflags='-O2'
1997     size_cflags='-Os'
1998 elif $cc -v 2>&1 | grep -q Open64; then
1999     cc_type=open64
2000     cc_version=__OPEN64__
2001     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2002     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2003     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2004     speed_cflags='-O2'
2005     size_cflags='-Os'
2006 fi
2007
2008 test -n "$cc_type" && enable $cc_type ||
2009     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2010
2011 : ${as_default:=$cc}
2012 : ${dep_cc_default:=$cc}
2013 : ${ld_default:=$cc}
2014 set_default ar as dep_cc ld
2015
2016 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2017 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2018
2019 add_cflags $extra_cflags
2020 add_asflags $extra_cflags
2021
2022 if test -n "$sysroot"; then
2023     case "$cc_type" in
2024         gcc|llvm_gcc)
2025             add_cppflags --sysroot="$sysroot"
2026             add_ldflags --sysroot="$sysroot"
2027         ;;
2028         tms470)
2029             add_cppflags -I"$sysinclude"
2030             add_ldflags  --sysroot="$sysroot"
2031         ;;
2032         clang)
2033             add_cppflags -isysroot "$sysroot"
2034             add_ldflags -isysroot "$sysroot"
2035         ;;
2036     esac
2037 fi
2038
2039 if test "$cpu" = host; then
2040     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2041
2042     case "$cc_type" in
2043         gcc|llvm_gcc)
2044             check_native(){
2045                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2046                 sed -n "/$1=/{
2047                             s/.*$1=\\([^ ]*\\).*/\\1/
2048                             p
2049                             q
2050                         }" $TMPE
2051             }
2052             cpu=$(check_native -march || check_native -mcpu)
2053         ;;
2054     esac
2055
2056     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2057 fi
2058
2059 # Deal with common $arch aliases
2060 case "$arch" in
2061     arm*)
2062         arch="arm"
2063     ;;
2064     mips|mipsel|IP*)
2065         arch="mips"
2066     ;;
2067     mips64*)
2068         arch="mips"
2069         subarch="mips64"
2070     ;;
2071     parisc|hppa)
2072         arch="parisc"
2073     ;;
2074     parisc64|hppa64)
2075         arch="parisc"
2076         subarch="parisc64"
2077     ;;
2078     "Power Macintosh"|ppc|powerpc)
2079         arch="ppc"
2080     ;;
2081     ppc64|powerpc64)
2082         arch="ppc"
2083         subarch="ppc64"
2084     ;;
2085     s390|s390x)
2086         arch="s390"
2087     ;;
2088     sh4|sh)
2089         arch="sh4"
2090     ;;
2091     sun4u|sparc64)
2092         arch="sparc"
2093         subarch="sparc64"
2094     ;;
2095     i[3-6]86|i86pc|BePC|x86_64|amd64)
2096         arch="x86"
2097     ;;
2098 esac
2099
2100 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2101 enable $arch
2102
2103 # Add processor-specific flags
2104 if test "$cpu" = generic; then
2105     : do nothing
2106 elif enabled ppc; then
2107
2108     case $(tolower $cpu) in
2109         601|ppc601|powerpc601)
2110             cpuflags="-mcpu=601"
2111             disable altivec
2112         ;;
2113         603*|ppc603*|powerpc603*)
2114             cpuflags="-mcpu=603"
2115             disable altivec
2116         ;;
2117         604*|ppc604*|powerpc604*)
2118             cpuflags="-mcpu=604"
2119             disable altivec
2120         ;;
2121         g3|75*|ppc75*|powerpc75*)
2122             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2123             disable altivec
2124         ;;
2125         g4|745*|ppc745*|powerpc745*)
2126             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2127         ;;
2128         74*|ppc74*|powerpc74*)
2129             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2130         ;;
2131         g5|970|ppc970|powerpc970|power4*)
2132             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2133         ;;
2134         cell)
2135             cpuflags="-mcpu=cell"
2136             enable ldbrx
2137         ;;
2138         e500v2)
2139             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2140             disable altivec
2141         ;;
2142         e500)
2143             cpuflags="-mcpu=8540 -mhard-float"
2144             disable altivec
2145         ;;
2146     esac
2147
2148 elif enabled x86; then
2149
2150     case $cpu in
2151         i[345]86|pentium)
2152             cpuflags="-march=$cpu"
2153             disable mmx
2154         ;;
2155         # targets that do NOT support conditional mov (cmov)
2156         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2157             cpuflags="-march=$cpu"
2158             disable cmov
2159         ;;
2160         # targets that do support conditional mov (cmov)
2161         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2162             cpuflags="-march=$cpu"
2163             enable cmov
2164             enable fast_cmov
2165         ;;
2166         # targets that do support conditional mov but on which it's slow
2167         pentium4|pentium4m|prescott|nocona)
2168             cpuflags="-march=$cpu"
2169             enable cmov
2170             disable fast_cmov
2171         ;;
2172     esac
2173
2174 elif enabled sparc; then
2175
2176     case $cpu in
2177         niagara)
2178             cpuflags="-mcpu=$cpu"
2179             disable vis
2180         ;;
2181         sparc64)
2182             cpuflags="-mcpu=v9"
2183         ;;
2184     esac
2185
2186 elif enabled arm; then
2187
2188     case $cpu in
2189         armv*)
2190             cpuflags="-march=$cpu"
2191             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2192         ;;
2193         *)
2194             cpuflags="-mcpu=$cpu"
2195             case $cpu in
2196                 cortex-a*)                               subarch=armv7a  ;;
2197                 cortex-r*)                               subarch=armv7r  ;;
2198                 cortex-m*)                               subarch=armv7m  ;;
2199                 arm11*)                                  subarch=armv6   ;;
2200                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2201                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2202             esac
2203         ;;
2204     esac
2205
2206 elif enabled alpha; then
2207
2208     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2209
2210 elif enabled bfin; then
2211
2212     cpuflags="-mcpu=$cpu"
2213
2214 elif enabled mips; then
2215
2216     cpuflags="-march=$cpu"
2217
2218 elif enabled avr32; then
2219
2220     case $cpu in
2221         ap7[02]0[0-2])
2222             subarch="avr32_ap"
2223             cpuflags="-mpart=$cpu"
2224         ;;
2225         ap)
2226             subarch="avr32_ap"
2227             cpuflags="-march=$cpu"
2228         ;;
2229         uc3[ab]*)
2230             subarch="avr32_uc"
2231             cpuflags="-mcpu=$cpu"
2232         ;;
2233         uc)
2234             subarch="avr32_uc"
2235             cpuflags="-march=$cpu"
2236         ;;
2237     esac
2238
2239 fi
2240
2241 add_cflags $cpuflags
2242 add_asflags $cpuflags
2243
2244 # compiler sanity check
2245 check_exec <<EOF
2246 int main(void){ return 0; }
2247 EOF
2248 if test "$?" != 0; then
2249     echo "$cc is unable to create an executable file."
2250     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2251         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2252         echo "Only do this if you know what cross compiling means."
2253     fi
2254     die "C compiler test failed."
2255 fi
2256
2257 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2258 check_cflags -std=c99
2259 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2260 #include <stdlib.h>
2261 EOF
2262 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2263 #include <stdlib.h>
2264 EOF
2265
2266 check_host_cflags -std=c99
2267
2268 case "$arch" in
2269     alpha|ia64|mips|parisc|sparc)
2270         spic=$shared
2271     ;;
2272     x86)
2273         subarch="x86_32"
2274         check_cc <<EOF && subarch="x86_64"
2275         int test[(int)sizeof(char*) - 7];
2276 EOF
2277         if test "$subarch" = "x86_64"; then
2278             spic=$shared
2279         fi
2280     ;;
2281 esac
2282
2283 enable $subarch
2284 enabled spic && enable pic
2285
2286 # OS specific
2287 case $target_os in
2288     haiku)
2289         prefix_default="/boot/common"
2290         network_extralibs="-lnetwork"
2291         ;;
2292     sunos)
2293         FFSERVERLDFLAGS=""
2294         SHFLAGS='-shared -Wl,-h,$$(@F)'
2295         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2296         network_extralibs="-lsocket -lnsl"
2297         add_cppflags -D__EXTENSIONS__
2298         nm_opts='-P -g'
2299         ;;
2300     netbsd)
2301         oss_indev_extralibs="-lossaudio"
2302         oss_outdev_extralibs="-lossaudio"
2303         add_cppflags -D_XOPEN_SOURCE=600
2304         ;;
2305     openbsd)
2306         enable malloc_aligned
2307         # On OpenBSD 4.5. the compiler does not use PIC unless
2308         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2309         # however the generated executable will not do anything
2310         # (simply quits with exit-code 1, no crash, no output).
2311         # Thus explicitly enable PIC here.
2312         enable pic
2313         SHFLAGS='-shared'
2314         oss_indev_extralibs="-lossaudio"
2315         oss_outdev_extralibs="-lossaudio"
2316         ;;
2317     freebsd|dragonfly)
2318         enable malloc_aligned
2319         ;;
2320     bsd/os)
2321         add_extralibs -lpoll -lgnugetopt
2322         strip="strip -d"
2323         ;;
2324     darwin)
2325         enable malloc_aligned
2326         gas="gas-preprocessor.pl $cc"
2327         enabled ppc && add_asflags -force_cpusubtype_ALL
2328         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2329         strip="${strip} -x"
2330         add_ldflags -Wl,-dynamic,-search_paths_first
2331         SLIBSUF=".dylib"
2332         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2333         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2334         FFSERVERLDFLAGS=-Wl,-bind_at_load
2335         objformat="macho"
2336         enabled x86_64 && objformat="macho64"
2337         enabled_any pic shared ||
2338             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2339         ;;
2340     mingw32*)
2341         if test $target_os = "mingw32ce"; then
2342             disable network
2343         else
2344             target_os=mingw32
2345         fi
2346         LIBTARGET=i386
2347         if enabled x86_64; then
2348             enable malloc_aligned
2349             LIBTARGET=x64
2350         elif enabled arm; then
2351             LIBTARGET=arm
2352         fi
2353         shlibdir_default="$bindir_default"
2354         disable ffserver
2355         SLIBPREF=""
2356         SLIBSUF=".dll"
2357         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2358         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2359         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2360         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2361             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2362             install -d "$(LIBDIR)"; \
2363             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2364         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2365         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'
2366         objformat="win32"
2367         enable dos_paths
2368         check_cflags -fno-common
2369         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2370                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2371                 die "ERROR: MinGW runtime version must be >= 3.15."
2372         ;;
2373     cygwin*)
2374         target_os=cygwin
2375         shlibdir_default="$bindir_default"
2376         SLIBPREF="cyg"
2377         SLIBSUF=".dll"
2378         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2379         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2380         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2381         objformat="win32"
2382         enable dos_paths
2383         check_cflags -fno-common
2384         ;;
2385     *-dos|freedos|opendos)
2386         disable ffplay ffserver
2387         disable $INDEV_LIST $OUTDEV_LIST
2388         network_extralibs="-lsocket"
2389         objformat="coff"
2390         enable dos_paths
2391         ;;
2392     linux)
2393         enable dv1394
2394         ;;
2395     irix*)
2396         target_os=irix
2397         ranlib="echo ignoring ranlib"
2398         ;;
2399     os/2*)
2400         strip="lxlite"
2401         ln_s="cp -f"
2402         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2403         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2404         FFSERVERLDFLAGS=""
2405         LIBSUF="_s.a"
2406         SLIBPREF=""
2407         SLIBSUF=".dll"
2408         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2409         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2410         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2411           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2412           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2413           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2414           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2415           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2416         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2417           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2418         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2419         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2420         enable dos_paths
2421         ;;
2422     gnu/kfreebsd)
2423         ;;
2424     gnu)
2425         ;;
2426     none)
2427         ;;
2428     *)
2429         die "Unknown OS '$target_os'."
2430         ;;
2431 esac
2432
2433 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2434
2435 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2436
2437 set_default $PATHS_LIST
2438
2439 # we need to build at least one lib type
2440 if ! enabled_any static shared; then
2441     cat <<EOF
2442 At least one library type must be built.
2443 Specify --enable-static to build the static libraries or --enable-shared to
2444 build the shared libraries as well. To only build the shared libraries specify
2445 --disable-static in addition to --enable-shared.
2446 EOF
2447     exit 1;
2448 fi
2449
2450 disabled static && LIBNAME=""
2451
2452 die_license_disabled() {
2453     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2454 }
2455
2456 die_license_disabled gpl libx264
2457 die_license_disabled gpl libxavs
2458 die_license_disabled gpl libxvid
2459 die_license_disabled gpl postproc
2460 die_license_disabled gpl x11grab
2461
2462 die_license_disabled nonfree libfaac
2463
2464 die_license_disabled version3 libopencore_amrnb
2465 die_license_disabled version3 libopencore_amrwb
2466
2467 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2468
2469 check_deps $ARCH_EXT_LIST
2470
2471 disabled optimizations || check_cflags -fomit-frame-pointer
2472
2473 enable_pic() {
2474     enable pic
2475     add_cppflags -DPIC
2476     add_cflags   -fPIC
2477     add_asflags  -fPIC
2478 }
2479
2480 enabled pic && enable_pic
2481
2482 check_cc <<EOF || die "Symbol mangling check failed."
2483 int ff_extern;
2484 EOF
2485 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2486 extern_prefix=${sym%%ff_extern*}
2487
2488 check_cc <<EOF && enable inline_asm
2489 void foo(void) { __asm__ volatile ("" ::); }
2490 EOF
2491
2492 _restrict=
2493 for restrict_keyword in restrict __restrict__ __restrict; do
2494     check_cc <<EOF && _restrict=$restrict_keyword && break
2495 void foo(char * $restrict_keyword p);
2496 EOF
2497 done
2498
2499 check_cc <<EOF && enable attribute_packed
2500 struct { int x; } __attribute__((packed)) x;
2501 EOF
2502
2503 check_cc <<EOF && enable attribute_may_alias
2504 union { int x; } __attribute__((may_alias)) x;
2505 EOF
2506
2507 check_cc <<EOF || die "endian test failed"
2508 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2509 EOF
2510 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2511
2512 if enabled alpha; then
2513
2514     check_cflags -mieee
2515
2516 elif enabled arm; then
2517
2518     check_cflags -marm
2519     nogas=die
2520
2521     check_ld <<EOF && enable vfp_args
2522 __asm__ (".eabi_attribute 28, 1");
2523 int main(void) { return 0; }
2524 EOF
2525
2526     # We have to check if pld is a nop and disable it.
2527     check_asm pld '"pld [r0]"'
2528
2529     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2530     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2531     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2532     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2533     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2534     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2535
2536     enabled_all armv6t2 shared !pic && enable_pic
2537
2538 elif enabled mips; then
2539
2540     check_asm loongson '"dmult.g $1, $2, $3"'
2541     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2542
2543 elif enabled ppc; then
2544
2545     enable local_aligned_8 local_aligned_16
2546
2547     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2548     check_asm ibm_asm   '"add 0, 0, 0"'
2549     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2550     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2551
2552     # AltiVec flags: The FSF version of GCC differs from the Apple version
2553     if enabled altivec; then
2554         nogas=warn
2555         check_cflags -maltivec -mabi=altivec &&
2556         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2557         check_cflags -faltivec
2558
2559         # check if our compiler supports Motorola AltiVec C API
2560         check_cc <<EOF || disable altivec
2561 $inc_altivec_h
2562 int main(void) {
2563     vector signed int v1, v2, v3;
2564     v1 = vec_add(v2,v3);
2565     return 0;
2566 }
2567 EOF
2568
2569         # check if our compiler supports braces for vector declarations
2570         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2571 $inc_altivec_h
2572 int main (void) { (vector int) {1}; return 0; }
2573 EOF
2574     fi
2575
2576 elif enabled sparc; then
2577
2578     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2579         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2580
2581 elif enabled x86; then
2582
2583     enable local_aligned_8 local_aligned_16
2584
2585     # check whether EBP is available on x86
2586     # As 'i' is stored on the stack, this program will crash
2587     # if the base pointer is used to access it because the
2588     # base pointer is cleared in the inline assembly code.
2589     check_exec_crash <<EOF && enable ebp_available
2590     volatile int i=0;
2591     __asm__ volatile (
2592         "xorl %%ebp, %%ebp"
2593     ::: "%ebp");
2594     return i;
2595 EOF
2596
2597     # check whether EBX is available on x86
2598     check_asm ebx_available '""::"b"(0)' &&
2599         check_asm ebx_available '"":::"%ebx"'
2600
2601     # check whether xmm clobbers are supported
2602     check_asm xmm_clobbers '"":::"%xmm0"'
2603
2604     # check whether more than 10 operands are supported
2605     check_cc <<EOF && enable ten_operands
2606 int main(void) {
2607     int x=0;
2608     __asm__ volatile(
2609         ""
2610         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2611     );
2612     return 0;
2613 }
2614 EOF
2615
2616     # check whether binutils is new enough to compile SSSE3/MMX2
2617     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2618     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2619
2620     check_asm bswap '"bswap %%eax" ::: "%eax"'
2621
2622     if ! disabled_any asm mmx yasm; then
2623         if check_cmd $yasmexe --version; then
2624             enabled x86_64 && yasm_extra="-m amd64"
2625             yasm_debug="-g dwarf2"
2626         elif check_cmd nasm -v; then
2627             yasmexe=nasm
2628             yasm_debug="-g -F dwarf"
2629             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2630         fi
2631
2632         YASMFLAGS="-f $objformat $yasm_extra"
2633         enabled pic               && append YASMFLAGS "-DPIC"
2634         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2635         case "$objformat" in
2636             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2637         esac
2638
2639         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2640             die "yasm not found, use --disable-yasm for a crippled build"
2641     fi
2642
2643     case "$cpu" in
2644         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2645             disable fast_clz
2646         ;;
2647     esac
2648
2649 fi
2650
2651 if enabled asm; then
2652     as=${gas:=$as}
2653     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2654         $nogas "GNU assembler not found, install gas-preprocessor"
2655 fi
2656
2657 if check_func dlopen; then
2658     ldl=
2659 elif check_func dlopen -ldl; then
2660     ldl=-ldl
2661 fi
2662
2663 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2664 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2665
2666 check_func  fcntl
2667 check_func  fork
2668 check_func  getaddrinfo $network_extralibs
2669 check_func  gethrtime
2670 check_func  getrusage
2671 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2672 check_func  inet_aton $network_extralibs
2673 check_func  isatty
2674 check_func  ${malloc_prefix}memalign            && enable memalign
2675 check_func  mkstemp
2676 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2677 check_func  setrlimit
2678 check_func  strerror_r
2679 check_func  strtok_r
2680 check_func_headers io.h setmode
2681 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2682 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2683 check_func_headers windows.h GetProcessTimes
2684 check_func_headers windows.h VirtualAlloc
2685
2686 check_header conio.h
2687 check_header dlfcn.h
2688 check_header dxva2api.h
2689 check_header malloc.h
2690 check_header poll.h
2691 check_header sys/mman.h
2692 check_header sys/resource.h
2693 check_header sys/select.h
2694 check_header termios.h
2695 check_header vdpau/vdpau.h
2696 check_header vdpau/vdpau_x11.h
2697 check_header X11/extensions/XvMClib.h
2698
2699 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2700
2701 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2702      enabled_any $need_memalign ; then
2703     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2704 fi
2705
2706 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2707 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2708
2709 # check for some common methods of building with pthread support
2710 # do this before the optional library checks as some of them require pthreads
2711 if ! disabled pthreads && ! enabled w32threads; then
2712     enable pthreads
2713     if check_func pthread_create; then
2714         :
2715     elif check_func pthread_create -pthread; then
2716         add_cflags -pthread
2717         add_extralibs -pthread
2718     elif check_func pthread_create -pthreads; then
2719         add_cflags -pthreads
2720         add_extralibs -pthreads
2721     elif check_func pthread_create -lpthreadGC2; then
2722         add_extralibs -lpthreadGC2
2723     elif ! check_lib pthread.h pthread_create -lpthread; then
2724         disable pthreads
2725     fi
2726 fi
2727
2728 for thread in $THREADS_LIST; do
2729     if enabled $thread; then
2730         test -n "$thread_type" &&
2731             die "ERROR: Only one thread type must be selected." ||
2732             thread_type="$thread"
2733     fi
2734 done
2735
2736 check_lib math.h sin -lm
2737 disabled vaapi || check_lib va/va.h vaInitialize -lva
2738
2739 check_mathfunc exp2
2740 check_mathfunc exp2f
2741 check_mathfunc llrint
2742 check_mathfunc llrintf
2743 check_mathfunc log2
2744 check_mathfunc log2f
2745 check_mathfunc lrint
2746 check_mathfunc lrintf
2747 check_mathfunc round
2748 check_mathfunc roundf
2749 check_mathfunc truncf
2750
2751 # these are off by default, so fail if requested and not available
2752 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2753 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2754 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2755                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2756                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2757 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2758 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2759 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2760 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2761 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2762 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2763 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2764                         die "ERROR: libopencv not found"; }
2765 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2766 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2767                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2768 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2769                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2770 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2771 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2772 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2773 enabled libvpx     && {
2774     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2775                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2776     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2777                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2778 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2779                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2780                         die "ERROR: libx264 version must be >= 0.99."; }
2781 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2782 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2783 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2784
2785 # libdc1394 check
2786 if enabled libdc1394; then
2787     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2788         enable libdc1394_2; } ||
2789     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2790         enable libdc1394_1; } ||
2791     die "ERROR: No version of libdc1394 found "
2792 fi
2793
2794 SDL_CONFIG="${cross_prefix}sdl-config"
2795 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2796     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2797     sdl_libs=$("${SDL_CONFIG}" --libs)
2798     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2799     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2800     enable sdl &&
2801     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2802 fi
2803
2804 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2805
2806 if enabled network; then
2807     check_type "sys/types.h sys/socket.h" socklen_t
2808     check_type netdb.h "struct addrinfo"
2809     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2810     check_type netinet/in.h "struct sockaddr_in6"
2811     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2812     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2813     # Prefer arpa/inet.h over winsock2
2814     if check_header arpa/inet.h ; then
2815         check_func closesocket
2816     elif check_header winsock2.h ; then
2817         check_func_headers winsock2.h closesocket -lws2 && \
2818             network_extralibs="-lws2" || \
2819         { check_func_headers winsock2.h closesocket -lws2_32 && \
2820             network_extralibs="-lws2_32"; }
2821         check_type ws2tcpip.h socklen_t
2822         check_type ws2tcpip.h "struct addrinfo"
2823         check_type ws2tcpip.h "struct ipv6_mreq"
2824         check_type ws2tcpip.h "struct sockaddr_in6"
2825         check_type ws2tcpip.h "struct sockaddr_storage"
2826         check_struct winsock2.h "struct sockaddr" sa_len
2827     else
2828         disable network
2829     fi
2830 fi
2831
2832 check_header linux/videodev.h
2833 check_header linux/videodev2.h
2834 check_header sys/videoio.h
2835
2836 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2837 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2838 # w32api 3.12 had it defined wrong
2839 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2840
2841 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2842 { check_header dev/bktr/ioctl_meteor.h &&
2843   check_header dev/bktr/ioctl_bt848.h; } ||
2844 { check_header machine/ioctl_meteor.h &&
2845   check_header machine/ioctl_bt848.h; } ||
2846 { check_header dev/video/meteor/ioctl_meteor.h &&
2847   check_header dev/video/bktr/ioctl_bt848.h; } ||
2848 check_header dev/ic/bt8xx.h
2849
2850 check_header sys/soundcard.h
2851 check_header soundcard.h
2852
2853 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2854
2855 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2856
2857 enabled x11grab                         &&
2858 check_header X11/Xlib.h                 &&
2859 check_header X11/extensions/XShm.h      &&
2860 check_header X11/extensions/Xfixes.h    &&
2861 check_func XOpenDisplay -lX11           &&
2862 check_func XShmCreateImage -lX11 -lXext &&
2863 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2864
2865 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2866 check_cpp_condition \
2867     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2868     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2869       disable vdpau; }
2870 fi
2871
2872 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2873
2874 # add some useful compiler flags if supported
2875 check_cflags -Wdeclaration-after-statement
2876 check_cflags -Wall
2877 check_cflags -Wno-parentheses
2878 check_cflags -Wno-switch
2879 check_cflags -Wdisabled-optimization
2880 check_cflags -Wpointer-arith
2881 check_cflags -Wredundant-decls
2882 check_cflags -Wno-pointer-sign
2883 check_cflags -Wcast-qual
2884 check_cflags -Wwrite-strings
2885 check_cflags -Wtype-limits
2886 check_cflags -Wundef
2887 check_cflags -Wmissing-prototypes
2888 enabled extra_warnings && check_cflags -Winline
2889
2890 # add some linker flags
2891 check_ldflags -Wl,--warn-common
2892 check_ldflags -Wl,--as-needed
2893 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'
2894 check_ldflags -Wl,-Bsymbolic
2895
2896 echo "X{};" > $TMPV
2897 if test_ldflags -Wl,--version-script,$TMPV; then
2898     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2899     check_cc <<EOF && enable symver_asm_label
2900 void ff_foo(void) __asm__ ("av_foo@VERSION");
2901 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2902 EOF
2903     check_cc <<EOF && enable symver_gnu_asm
2904 __asm__(".symver ff_foo,av_foo@VERSION");
2905 void ff_foo(void) {}
2906 EOF
2907 fi
2908
2909 if enabled small; then
2910     add_cflags $size_cflags
2911     optimizations="small"
2912 elif enabled optimizations; then
2913     add_cflags $speed_cflags
2914 else
2915     add_cflags $noopt_cflags
2916 fi
2917 check_cflags -fno-math-errno
2918 check_cflags -fno-signed-zeros
2919
2920 if enabled icc; then
2921     # Just warnings, no remarks
2922     check_cflags -w1
2923     # -wd: Disable following warnings
2924     # 144, 167, 556: -Wno-pointer-sign
2925     # 10006: ignoring unknown option -fno-signed-zeros
2926     # 10148: ignoring unknown option -Wno-parentheses
2927     # 10156: ignoring option '-W'; no argument required
2928     check_cflags -wd144,167,556,10006,10148,10156
2929     # 11030: Warning unknown option --as-needed
2930     # 10156: ignoring option '-export'; no argument required
2931     check_ldflags -wd10156,11030
2932     # Allow to compile with optimizations
2933     check_ldflags -march=$cpu
2934     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2935     enable ebp_available
2936     if enabled x86_32; then
2937         test ${icc_version%%.*} -ge 11 && \
2938             check_cflags -falign-stack=maintain-16-byte || \
2939             disable aligned_stack
2940     fi
2941 elif enabled ccc; then
2942     # disable some annoying warnings
2943     add_cflags -msg_disable cvtu32to64
2944     add_cflags -msg_disable embedcomment
2945     add_cflags -msg_disable needconstext
2946     add_cflags -msg_disable nomainieee
2947     add_cflags -msg_disable ptrmismatch1
2948     add_cflags -msg_disable unreachcode
2949 elif enabled gcc; then
2950     check_cflags -fno-tree-vectorize
2951     check_cflags -Werror=implicit-function-declaration
2952     check_cflags -Werror=missing-prototypes
2953 elif enabled llvm_gcc; then
2954     check_cflags -mllvm -stack-alignment=16
2955 elif enabled clang; then
2956     check_cflags -mllvm -stack-alignment=16
2957     check_cflags -Qunused-arguments
2958 elif enabled armcc; then
2959     # 2523: use of inline assembler is deprecated
2960     add_cflags -W${armcc_opt},--diag_suppress=2523
2961     add_cflags -W${armcc_opt},--diag_suppress=1207
2962 elif enabled tms470; then
2963     add_cflags -pds=824 -pds=837
2964 fi
2965
2966 enabled_any $THREADS_LIST      && enable threads
2967
2968 check_deps $CONFIG_LIST       \
2969            $CONFIG_EXTRA      \
2970            $HAVE_LIST         \
2971            $DECODER_LIST      \
2972            $ENCODER_LIST      \
2973            $HWACCEL_LIST      \
2974            $PARSER_LIST       \
2975            $BSF_LIST          \
2976            $DEMUXER_LIST      \
2977            $MUXER_LIST        \
2978            $FILTER_LIST       \
2979            $INDEV_LIST        \
2980            $OUTDEV_LIST       \
2981            $PROTOCOL_LIST     \
2982            $ACODEC_TESTS      \
2983            $VCODEC_TESTS      \
2984            $LAVF_TESTS        \
2985            $LAVFI_TESTS       \
2986            $SEEK_TESTS        \
2987
2988 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2989
2990 echo "install prefix            $prefix"
2991 echo "source path               $source_path"
2992 echo "C compiler                $cc"
2993 echo "ARCH                      $arch ($cpu)"
2994 if test "$build_suffix" != ""; then
2995     echo "build suffix              $build_suffix"
2996 fi
2997 if test "$extra_version" != ""; then
2998     echo "version string suffix     $extra_version"
2999 fi
3000 echo "big-endian                ${bigendian-no}"
3001 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3002 if enabled x86; then
3003     echo "yasm                      ${yasm-no}"
3004     echo "MMX enabled               ${mmx-no}"
3005     echo "MMX2 enabled              ${mmx2-no}"
3006     echo "3DNow! enabled            ${amd3dnow-no}"
3007     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3008     echo "SSE enabled               ${sse-no}"
3009     echo "SSSE3 enabled             ${ssse3-no}"
3010     echo "CMOV enabled              ${cmov-no}"
3011     echo "CMOV is fast              ${fast_cmov-no}"
3012     echo "EBX available             ${ebx_available-no}"
3013     echo "EBP available             ${ebp_available-no}"
3014     echo "10 operands supported     ${ten_operands-no}"
3015 fi
3016 if enabled arm; then
3017     echo "ARMv5TE enabled           ${armv5te-no}"
3018     echo "ARMv6 enabled             ${armv6-no}"
3019     echo "ARMv6T2 enabled           ${armv6t2-no}"
3020     echo "ARM VFP enabled           ${armvfp-no}"
3021     echo "IWMMXT enabled            ${iwmmxt-no}"
3022     echo "NEON enabled              ${neon-no}"
3023 fi
3024 if enabled mips; then
3025     echo "MMI enabled               ${mmi-no}"
3026 fi
3027 if enabled ppc; then
3028     echo "AltiVec enabled           ${altivec-no}"
3029     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3030     echo "dcbzl available           ${dcbzl-no}"
3031 fi
3032 if enabled sparc; then
3033     echo "VIS enabled               ${vis-no}"
3034 fi
3035 echo "debug symbols             ${debug-no}"
3036 echo "strip symbols             ${stripping-no}"
3037 echo "optimizations             ${optimizations-no}"
3038 echo "static                    ${static-no}"
3039 echo "shared                    ${shared-no}"
3040 echo "postprocessing support    ${postproc-no}"
3041 echo "new filter support        ${avfilter-no}"
3042 echo "network support           ${network-no}"
3043 echo "threading support         ${thread_type-no}"
3044 echo "SDL support               ${sdl-no}"
3045 echo "Sun medialib support      ${mlib-no}"
3046 echo "AVISynth enabled          ${avisynth-no}"
3047 echo "frei0r enabled            ${frei0r-no}"
3048 echo "libdc1394 support         ${libdc1394-no}"
3049 echo "libdirac enabled          ${libdirac-no}"
3050 echo "libfaac enabled           ${libfaac-no}"
3051 echo "libgsm enabled            ${libgsm-no}"
3052 echo "libmp3lame enabled        ${libmp3lame-no}"
3053 echo "libnut enabled            ${libnut-no}"
3054 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3055 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3056 echo "libopencv support         ${libopencv-no}"
3057 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3058 echo "librtmp enabled           ${librtmp-no}"
3059 echo "libschroedinger enabled   ${libschroedinger-no}"
3060 echo "libspeex enabled          ${libspeex-no}"
3061 echo "libtheora enabled         ${libtheora-no}"
3062 echo "libvorbis enabled         ${libvorbis-no}"
3063 echo "libvpx enabled            ${libvpx-no}"
3064 echo "libx264 enabled           ${libx264-no}"
3065 echo "libxavs enabled           ${libxavs-no}"
3066 echo "libxvid enabled           ${libxvid-no}"
3067 echo "zlib enabled              ${zlib-no}"
3068 echo "bzlib enabled             ${bzlib-no}"
3069 echo
3070
3071 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3072     echo "Enabled ${type}s:"
3073     eval list=\$$(toupper $type)_LIST
3074     print_enabled '_*' $list | sort | pr -3 -t
3075     echo
3076 done
3077
3078 license="LGPL version 2.1 or later"
3079 if enabled nonfree; then
3080     license="nonfree and unredistributable"
3081 elif enabled gplv3; then
3082     license="GPL version 3 or later"
3083 elif enabled lgplv3; then
3084     license="LGPL version 3 or later"
3085 elif enabled gpl; then
3086     license="GPL version 2 or later"
3087 fi
3088
3089 echo "License: $license"
3090
3091 echo "Creating config.mak and config.h..."
3092
3093 # build tree in object directory if source path is different from current one
3094 if enabled source_path_used; then
3095     DIRS="
3096         doc
3097         libavcodec
3098         libavcodec/$arch
3099         libavcore
3100         libavdevice
3101         libavfilter
3102         libavfilter/$arch
3103         libavformat
3104         libavutil
3105         libavutil/$arch
3106         libpostproc
3107         libswscale
3108         libswscale/$arch
3109         tests
3110         tools
3111     "
3112     FILES="
3113         Makefile
3114         common.mak
3115         subdir.mak
3116         doc/texi2pod.pl
3117         libavcodec/Makefile
3118         libavcodec/${arch}/Makefile
3119         libavcore/Makefile
3120         libavdevice/Makefile
3121         libavfilter/Makefile
3122         libavfilter/${arch}/Makefile
3123         libavformat/Makefile
3124         libavutil/Makefile
3125         libpostproc/Makefile
3126         libswscale/Makefile
3127     "
3128     map 'mkdir -p $v' $DIRS;
3129     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3130 fi
3131
3132 enabled stripping || strip="echo skipping strip"
3133
3134 config_files="$TMPH config.mak"
3135
3136 cat > config.mak <<EOF
3137 # Automatically generated by configure - do not modify!
3138 ifndef FFMPEG_CONFIG_MAK
3139 FFMPEG_CONFIG_MAK=1
3140 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3141 prefix=$prefix
3142 LIBDIR=\$(DESTDIR)$libdir
3143 SHLIBDIR=\$(DESTDIR)$shlibdir
3144 INCDIR=\$(DESTDIR)$incdir
3145 BINDIR=\$(DESTDIR)$bindir
3146 DATADIR=\$(DESTDIR)$datadir
3147 MANDIR=\$(DESTDIR)$mandir
3148 SRC_PATH="$source_path"
3149 SRC_PATH_BARE=$source_path
3150 BUILD_ROOT="$PWD"
3151 CC_IDENT=$cc_ident
3152 ARCH=$arch
3153 CC=$cc
3154 AS=$as
3155 LD=$ld
3156 DEPCC=$dep_cc
3157 YASM=$yasmexe
3158 YASMDEP=$yasmexe
3159 AR=$ar
3160 RANLIB=$ranlib
3161 CP=cp -p
3162 LN_S=$ln_s
3163 STRIP=$strip
3164 CPPFLAGS=$CPPFLAGS
3165 CFLAGS=$CFLAGS
3166 ASFLAGS=$ASFLAGS
3167 CC_O=$CC_O
3168 LDFLAGS=$LDFLAGS
3169 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3170 SHFLAGS=$SHFLAGS
3171 YASMFLAGS=$YASMFLAGS
3172 BUILDSUF=$build_suffix
3173 FULLNAME=$FULLNAME
3174 LIBPREF=$LIBPREF
3175 LIBSUF=$LIBSUF
3176 LIBNAME=$LIBNAME
3177 SLIBPREF=$SLIBPREF
3178 SLIBSUF=$SLIBSUF
3179 EXESUF=$EXESUF
3180 EXTRA_VERSION=$extra_version
3181 DEPFLAGS=$DEPFLAGS
3182 CCDEP=$CCDEP
3183 ASDEP=$ASDEP
3184 CC_DEPFLAGS=$CC_DEPFLAGS
3185 AS_DEPFLAGS=$AS_DEPFLAGS
3186 HOSTCC=$host_cc
3187 HOSTCFLAGS=$host_cflags
3188 HOSTEXESUF=$HOSTEXESUF
3189 HOSTLDFLAGS=$host_ldflags
3190 HOSTLIBS=$host_libs
3191 TARGET_EXEC=$target_exec
3192 TARGET_PATH=$target_path
3193 SDL_LIBS=$sdl_libs
3194 SDL_CFLAGS=$sdl_cflags
3195 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3196 EXTRALIBS=$extralibs
3197 INSTALL=install
3198 LIBTARGET=${LIBTARGET}
3199 SLIBNAME=${SLIBNAME}
3200 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3201 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3202 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3203 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3204 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3205 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3206 SAMPLES=$samples
3207 EOF
3208
3209 get_version(){
3210     name=$1
3211     file=$source_path/$2
3212     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3213     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3214     lcname=$(tolower $name)
3215     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3216     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3217 }
3218
3219 get_version LIBSWSCALE  libswscale/swscale.h
3220 get_version LIBPOSTPROC libpostproc/postprocess.h
3221 get_version LIBAVCODEC  libavcodec/avcodec.h
3222 get_version LIBAVCORE   libavcore/avcore.h
3223 get_version LIBAVDEVICE libavdevice/avdevice.h
3224 get_version LIBAVFORMAT libavformat/avformat.h
3225 get_version LIBAVUTIL   libavutil/avutil.h
3226 get_version LIBAVFILTER libavfilter/avfilter.h
3227
3228 cat > $TMPH <<EOF
3229 /* Automatically generated by configure - do not modify! */
3230 #ifndef FFMPEG_CONFIG_H
3231 #define FFMPEG_CONFIG_H
3232 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3233 #define FFMPEG_LICENSE "$(c_escape $license)"
3234 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3235 #define CC_TYPE "$cc_type"
3236 #define CC_VERSION $cc_version
3237 #define restrict $_restrict
3238 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3239 #define EXTERN_PREFIX "${extern_prefix}"
3240 #define EXTERN_ASM ${extern_prefix}
3241 #define SLIBSUF "$SLIBSUF"
3242 EOF
3243
3244 test -n "$malloc_prefix" &&
3245     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3246
3247 if enabled small || disabled optimizations; then
3248     echo "#undef  av_always_inline"  >> $TMPH
3249     if enabled small; then
3250         echo "#define av_always_inline inline"  >> $TMPH
3251     else
3252         echo "#define av_always_inline av_unused"  >> $TMPH
3253     fi
3254 fi
3255
3256 if enabled yasm; then
3257     append config_files $TMPASM
3258     printf '' >$TMPASM
3259 fi
3260
3261 print_config ARCH_   "$config_files" $ARCH_LIST
3262 print_config HAVE_   "$config_files" $HAVE_LIST
3263 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3264                                      $CONFIG_EXTRA      \
3265                                      $DECODER_LIST      \
3266                                      $ENCODER_LIST      \
3267                                      $HWACCEL_LIST      \
3268                                      $PARSER_LIST       \
3269                                      $BSF_LIST          \
3270                                      $DEMUXER_LIST      \
3271                                      $MUXER_LIST        \
3272                                      $FILTER_LIST       \
3273                                      $PROTOCOL_LIST     \
3274                                      $INDEV_LIST        \
3275                                      $OUTDEV_LIST       \
3276
3277 cat >>config.mak <<EOF
3278 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3279 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3280 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3281 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3282 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3283 EOF
3284
3285 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3286 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3287
3288 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3289 cp_if_changed $TMPH config.h
3290 touch .config
3291
3292 enabled yasm && cp_if_changed $TMPASM config.asm
3293
3294 cat > $TMPH <<EOF
3295 /* Generated by ffconf */
3296 #ifndef AVUTIL_AVCONFIG_H
3297 #define AVUTIL_AVCONFIG_H
3298 EOF
3299
3300 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3301
3302 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3303
3304 cp_if_changed $TMPH libavutil/avconfig.h
3305
3306 test -n "$WARNINGS" && printf "\n$WARNINGS"
3307
3308 # build pkg-config files
3309
3310 pkgconfig_generate(){
3311 name=$1
3312 shortname=${name#lib}${build_suffix}
3313 comment=$2
3314 version=$3
3315 libs=$4
3316 requires=$5
3317 enabled ${name#lib} || return 0
3318 cat <<EOF > $name/$name.pc
3319 prefix=$prefix
3320 exec_prefix=\${prefix}
3321 libdir=$libdir
3322 includedir=$incdir
3323
3324 Name: $name
3325 Description: $comment
3326 Version: $version
3327 Requires: $(enabled shared || echo $requires)
3328 Requires.private: $(enabled shared && echo $requires)
3329 Conflicts:
3330 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3331 Libs.private: $(enabled shared && echo $libs)
3332 Cflags: -I\${includedir}
3333 EOF
3334 cat <<EOF > $name/$name-uninstalled.pc
3335 prefix=
3336 exec_prefix=
3337 libdir=\${pcfiledir}
3338 includedir=${source_path}
3339
3340 Name: $name
3341 Description: $comment
3342 Version: $version
3343 Requires: $requires
3344 Conflicts:
3345 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3346 Cflags: -I\${includedir}
3347 EOF
3348 }
3349
3350 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3351 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3352 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3353 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3354 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3355 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3356 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3357 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"