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 amrwb_decoder_select="lsp"
1198 atrac1_decoder_select="mdct"
1199 atrac3_decoder_select="mdct"
1200 binkaudio_dct_decoder_select="mdct rdft dct"
1201 binkaudio_rdft_decoder_select="mdct rdft"
1202 cavs_decoder_select="golomb"
1203 cook_decoder_select="mdct"
1204 cscd_decoder_suggest="zlib"
1205 dca_decoder_select="mdct"
1206 dnxhd_encoder_select="aandct"
1207 dxa_decoder_select="zlib"
1208 eac3_decoder_select="ac3_decoder"
1209 eamad_decoder_select="aandct"
1210 eatgq_decoder_select="aandct"
1211 eatqi_decoder_select="aandct"
1212 ffv1_decoder_select="golomb"
1213 flac_decoder_select="golomb"
1214 flac_encoder_select="golomb lpc"
1215 flashsv_decoder_select="zlib"
1216 flashsv_encoder_select="zlib"
1217 flv_decoder_select="h263_decoder"
1218 flv_encoder_select="h263_encoder"
1219 fraps_decoder_select="huffman"
1220 h261_encoder_select="aandct"
1221 h263_decoder_select="h263_parser"
1222 h263_encoder_select="aandct"
1223 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1224 h263i_decoder_select="h263_decoder"
1225 h263p_encoder_select="h263_encoder"
1226 h264_decoder_select="golomb h264dsp h264pred"
1227 h264_dxva2_hwaccel_deps="dxva2api_h"
1228 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1229 h264_vaapi_hwaccel_select="vaapi"
1230 h264_vdpau_decoder_select="vdpau h264_decoder"
1231 imc_decoder_select="fft mdct"
1232 jpegls_decoder_select="golomb"
1233 jpegls_encoder_select="golomb"
1234 ljpeg_encoder_select="aandct"
1235 loco_decoder_select="golomb"
1236 mjpeg_encoder_select="aandct"
1237 mlp_decoder_select="mlp_parser"
1238 mp1float_decoder_select="dct"
1239 mp2float_decoder_select="dct"
1240 mp3adufloat_decoder_select="dct"
1241 mp3float_decoder_select="dct"
1242 mp3on4float_decoder_select="dct"
1243 mpeg1video_encoder_select="aandct"
1244 mpeg2video_encoder_select="aandct"
1245 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1246 mpeg4_encoder_select="h263_encoder"
1247 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1248 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1249 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1250 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1251 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1252 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1253 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1254 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1255 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1256 msmpeg4v1_decoder_select="h263_decoder"
1257 msmpeg4v1_encoder_select="h263_encoder"
1258 msmpeg4v2_decoder_select="h263_decoder"
1259 msmpeg4v2_encoder_select="h263_encoder"
1260 msmpeg4v3_decoder_select="h263_decoder"
1261 msmpeg4v3_encoder_select="h263_encoder"
1262 nellymoser_decoder_select="mdct"
1263 nellymoser_encoder_select="mdct"
1264 png_decoder_select="zlib"
1265 png_encoder_select="zlib"
1266 qcelp_decoder_select="lsp"
1267 qdm2_decoder_select="mdct rdft"
1268 ra_144_encoder_select="lpc"
1269 rv10_decoder_select="h263_decoder"
1270 rv10_encoder_select="h263_encoder"
1271 rv20_decoder_select="h263_decoder"
1272 rv20_encoder_select="h263_encoder"
1273 rv30_decoder_select="golomb h264pred"
1274 rv40_decoder_select="golomb h264pred"
1275 shorten_decoder_select="golomb"
1276 sipr_decoder_select="lsp"
1277 snow_decoder_select="dwt"
1278 snow_encoder_select="aandct dwt"
1279 sonic_decoder_select="golomb"
1280 sonic_encoder_select="golomb"
1281 sonic_ls_encoder_select="golomb"
1282 svq1_encoder_select="aandct"
1283 svq3_decoder_select="golomb h264dsp h264pred"
1284 svq3_decoder_suggest="zlib"
1285 theora_decoder_select="vp3_decoder"
1286 tiff_decoder_suggest="zlib"
1287 tiff_encoder_suggest="zlib"
1288 truehd_decoder_select="mlp_decoder"
1289 tscc_decoder_select="zlib"
1290 twinvq_decoder_select="mdct lsp"
1291 vc1_decoder_select="h263_decoder"
1292 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1293 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1294 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1295 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1296 vorbis_decoder_select="mdct"
1297 vorbis_encoder_select="mdct"
1298 vp6_decoder_select="huffman"
1299 vp6a_decoder_select="vp6_decoder"
1300 vp6f_decoder_select="vp6_decoder"
1301 vp8_decoder_select="h264pred"
1302 wmapro_decoder_select="mdct"
1303 wmav1_decoder_select="mdct"
1304 wmav1_encoder_select="mdct"
1305 wmav2_decoder_select="mdct"
1306 wmav2_encoder_select="mdct"
1307 wmavoice_decoder_select="lsp rdft dct mdct"
1308 wmv1_decoder_select="h263_decoder"
1309 wmv1_encoder_select="h263_encoder"
1310 wmv2_decoder_select="h263_decoder"
1311 wmv2_encoder_select="h263_encoder"
1312 wmv3_decoder_select="vc1_decoder"
1313 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1314 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1315 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1316 zlib_decoder_select="zlib"
1317 zlib_encoder_select="zlib"
1318 zmbv_decoder_select="zlib"
1319 zmbv_encoder_select="zlib"
1320
1321 vaapi_deps="va_va_h"
1322 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1323
1324 # parsers
1325 h264_parser_select="golomb h264dsp h264pred"
1326
1327 # external libraries
1328 libdirac_decoder_deps="libdirac !libschroedinger"
1329 libdirac_encoder_deps="libdirac"
1330 libfaac_encoder_deps="libfaac"
1331 libgsm_decoder_deps="libgsm"
1332 libgsm_encoder_deps="libgsm"
1333 libgsm_ms_decoder_deps="libgsm"
1334 libgsm_ms_encoder_deps="libgsm"
1335 libmp3lame_encoder_deps="libmp3lame"
1336 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1337 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1338 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1339 libopenjpeg_decoder_deps="libopenjpeg"
1340 libschroedinger_decoder_deps="libschroedinger"
1341 libschroedinger_encoder_deps="libschroedinger"
1342 libspeex_decoder_deps="libspeex"
1343 libtheora_encoder_deps="libtheora"
1344 libvorbis_encoder_deps="libvorbis"
1345 libvpx_decoder_deps="libvpx"
1346 libvpx_encoder_deps="libvpx"
1347 libx264_encoder_deps="libx264"
1348 libxavs_encoder_deps="libxavs"
1349 libxvid_encoder_deps="libxvid"
1350
1351 # demuxers / muxers
1352 ac3_demuxer_deps="ac3_parser"
1353 asf_stream_muxer_select="asf_muxer"
1354 avisynth_demuxer_deps="avisynth"
1355 dirac_demuxer_deps="dirac_parser"
1356 eac3_demuxer_select="ac3_parser"
1357 flac_demuxer_deps="flac_parser"
1358 ipod_muxer_select="mov_muxer"
1359 libnut_demuxer_deps="libnut"
1360 libnut_muxer_deps="libnut"
1361 matroska_audio_muxer_select="matroska_muxer"
1362 matroska_demuxer_suggest="zlib bzlib"
1363 mov_demuxer_suggest="zlib"
1364 mp3_demuxer_deps="mpegaudio_parser"
1365 mp4_muxer_select="mov_muxer"
1366 mpegtsraw_demuxer_select="mpegts_demuxer"
1367 mxf_d10_muxer_select="mxf_muxer"
1368 ogg_demuxer_select="golomb"
1369 psp_muxer_select="mov_muxer"
1370 rtp_demuxer_select="sdp_demuxer"
1371 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1372 rtsp_demuxer_select="http_protocol rtpdec"
1373 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1374 sap_demuxer_select="sdp_demuxer"
1375 sap_muxer_select="rtp_muxer rtp_protocol"
1376 sdp_demuxer_select="rtpdec"
1377 spdif_muxer_select="aac_parser"
1378 tg2_muxer_select="mov_muxer"
1379 tgp_muxer_select="mov_muxer"
1380 w64_demuxer_deps="wav_demuxer"
1381
1382 # indevs / outdevs
1383 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1384 alsa_outdev_deps="alsa_asoundlib_h"
1385 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1386 dv1394_indev_deps="dv1394 dv_demuxer"
1387 jack_indev_deps="jack_jack_h"
1388 libdc1394_indev_deps="libdc1394"
1389 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1390 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1391 v4l_indev_deps="linux_videodev_h"
1392 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1393 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1394 vfwcap_indev_extralibs="-lavicap32"
1395 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1396 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1397
1398 # protocols
1399 gopher_protocol_deps="network"
1400 http_protocol_deps="network"
1401 http_protocol_select="tcp_protocol"
1402 mmsh_protocol_select="http_protocol"
1403 mmst_protocol_deps="network"
1404 rtmp_protocol_select="tcp_protocol"
1405 rtp_protocol_select="udp_protocol"
1406 tcp_protocol_deps="network"
1407 udp_protocol_deps="network"
1408
1409 # filters
1410 blackframe_filter_deps="gpl"
1411 cropdetect_filter_deps="gpl"
1412 frei0r_filter_deps="frei0r dlopen strtok_r"
1413 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1414 hqdn3d_filter_deps="gpl"
1415 ocv_smooth_filter_deps="libopencv"
1416 yadif_filter_deps="gpl"
1417
1418 # libraries
1419 avdevice_deps="avcodec avformat"
1420 avformat_deps="avcodec"
1421
1422 # programs
1423 ffmpeg_deps="avcodec avformat swscale"
1424 ffmpeg_select="buffer_filter"
1425 ffplay_deps="avcodec avformat swscale sdl"
1426 ffplay_select="rdft"
1427 ffprobe_deps="avcodec avformat"
1428 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1429 ffserver_extralibs='$ldl'
1430
1431 doc_deps="texi2html"
1432
1433 # tests
1434
1435 test_deps(){
1436     suf1=$1
1437     suf2=$2
1438     shift 2
1439     for v; do
1440         dep=${v%=*}
1441         tests=${v#*=}
1442         for name in ${tests}; do
1443             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1444         done
1445     done
1446 }
1447
1448 set_ne_test_deps(){
1449     eval ${1}_be_test_deps="bigendian"
1450     eval ${1}_le_test_deps="!bigendian"
1451 }
1452
1453 test_deps _encoder _decoder                                             \
1454     ac3                                                                 \
1455     adpcm_g726=g726                                                     \
1456     adpcm_ima_qt                                                        \
1457     adpcm_ima_wav                                                       \
1458     adpcm_ms                                                            \
1459     adpcm_swf                                                           \
1460     adpcm_yamaha=adpcm_yam                                              \
1461     alac                                                                \
1462     asv1                                                                \
1463     asv2                                                                \
1464     bmp                                                                 \
1465     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1466     dvvideo="dv dv50"                                                   \
1467     ffv1                                                                \
1468     flac                                                                \
1469     flashsv                                                             \
1470     flv                                                                 \
1471     gif                                                                 \
1472     h261                                                                \
1473     h263="h263 h263p"                                                   \
1474     huffyuv                                                             \
1475     jpegls                                                              \
1476     mjpeg="jpg mjpeg ljpeg"                                             \
1477     mp2                                                                 \
1478     mpeg1video="mpeg mpeg1b"                                            \
1479     mpeg2video="mpeg2 mpeg2thread"                                      \
1480     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1481     msmpeg4v3=msmpeg4                                                   \
1482     msmpeg4v2                                                           \
1483     pbm=pbmpipe                                                         \
1484     pcx                                                                 \
1485     pgm="pgm pgmpipe"                                                   \
1486     ppm="ppm ppmpipe"                                                   \
1487     rawvideo="rgb yuv"                                                  \
1488     roq                                                                 \
1489     rv10                                                                \
1490     rv20                                                                \
1491     sgi                                                                 \
1492     snow="snow snowll"                                                  \
1493     svq1                                                                \
1494     targa=tga                                                           \
1495     tiff                                                                \
1496     wmav1                                                               \
1497     wmav2                                                               \
1498     wmv1                                                                \
1499     wmv2                                                                \
1500
1501 test_deps _muxer _demuxer                                               \
1502     aiff                                                                \
1503     pcm_alaw=alaw                                                       \
1504     asf                                                                 \
1505     au                                                                  \
1506     avi                                                                 \
1507     dv=dv_fmt                                                           \
1508     ffm                                                                 \
1509     flv=flv_fmt                                                         \
1510     gxf                                                                 \
1511     matroska=mkv                                                        \
1512     mmf                                                                 \
1513     mov                                                                 \
1514     pcm_mulaw=mulaw                                                     \
1515     mxf                                                                 \
1516     nut                                                                 \
1517     ogg                                                                 \
1518     rawvideo=pixfmt                                                     \
1519     rm                                                                  \
1520     swf                                                                 \
1521     mpegts=ts                                                           \
1522     voc                                                                 \
1523     wav                                                                 \
1524     yuv4mpegpipe=yuv4mpeg                                               \
1525
1526 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1527
1528 set_ne_test_deps pixdesc
1529 set_ne_test_deps pixfmts_crop
1530 set_ne_test_deps pixfmts_hflip
1531 set_ne_test_deps pixfmts_null
1532 set_ne_test_deps pixfmts_pad
1533 set_ne_test_deps pixfmts_scale
1534 set_ne_test_deps pixfmts_vflip
1535
1536 # default parameters
1537
1538 logfile="config.log"
1539
1540 # installation paths
1541 prefix_default="/usr/local"
1542 bindir_default='${prefix}/bin'
1543 datadir_default='${prefix}/share/ffmpeg'
1544 incdir_default='${prefix}/include'
1545 libdir_default='${prefix}/lib'
1546 mandir_default='${prefix}/share/man'
1547 shlibdir_default="$libdir_default"
1548
1549 # toolchain
1550 ar_default="ar"
1551 cc_default="gcc"
1552 cc_version=\"unknown\"
1553 host_cc_default="gcc"
1554 ln_s="ln -sf"
1555 nm_default="nm"
1556 objformat="elf"
1557 ranlib="ranlib"
1558 strip_default="strip"
1559 yasmexe="yasm"
1560 nogas=":"
1561
1562 nm_opts='-g'
1563
1564 # machine
1565 arch_default=$(uname -m)
1566 cpu="generic"
1567
1568 # OS
1569 target_os_default=$(tolower $(uname -s))
1570 host_os=$target_os_default
1571
1572 # configurable options
1573 enable avcodec
1574 enable avcore
1575 enable avdevice
1576 enable avfilter
1577 enable avformat
1578 enable avutil
1579 enable asm
1580 enable debug
1581 enable doc
1582 enable fastdiv
1583 enable ffmpeg
1584 enable ffplay
1585 enable ffprobe
1586 enable ffserver
1587 enable mpegaudio_hp
1588 enable network
1589 enable optimizations
1590 enable protocols
1591 enable static
1592 enable stripping
1593 enable swscale
1594 enable swscale_alpha
1595
1596 # build settings
1597 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1598 FFSERVERLDFLAGS=-Wl,-E
1599 LIBPREF="lib"
1600 LIBSUF=".a"
1601 FULLNAME='$(NAME)$(BUILDSUF)'
1602 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1603 SLIBPREF="lib"
1604 SLIBSUF=".so"
1605 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1606 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1607 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1608 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1609
1610 CC_O='-o $@'
1611
1612 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1613 host_libs='-lm'
1614
1615 target_path='$(CURDIR)'
1616
1617 # since the object filename is not given with the -MM flag, the compiler
1618 # is only able to print the basename, and we must add the path ourselves
1619 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1620 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1621
1622 # find source path
1623 source_path="$(dirname "$0")"
1624 enable source_path_used
1625 if test -f configure; then
1626     source_path="$(pwd)"
1627     disable source_path_used
1628 else
1629     source_path="$(cd "$source_path"; pwd)"
1630     echo "$source_path" | grep -q '[[:blank:]]' &&
1631         die "Out of tree builds are impossible with whitespace in source path."
1632     test -e "$source_path/config.h" &&
1633         die "Out of tree builds are impossible with config.h in source dir."
1634 fi
1635
1636 for v in "$@"; do
1637     r=${v#*=}
1638     l=${v%"$r"}
1639     r=$(sh_quote "$r")
1640     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1641 done
1642
1643 find_things(){
1644     thing=$1
1645     pattern=$2
1646     file=$source_path/$3
1647     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1648 }
1649
1650 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1651 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1652 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1653 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1654 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1655 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1656 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1657 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1658 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1659 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1660 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1661
1662 find_tests(){
1663     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1664 }
1665
1666 ACODEC_TESTS=$(find_tests acodec)
1667 VCODEC_TESTS=$(find_tests vsynth1)
1668 LAVF_TESTS=$(find_tests lavf)
1669 LAVFI_TESTS=$(find_tests lavfi)
1670 SEEK_TESTS=$(find_tests seek seek_)
1671
1672 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1673
1674 for n in $COMPONENT_LIST; do
1675     v=$(toupper ${n%s})_LIST
1676     eval enable \$$v
1677     eval ${n}_if_any="\$$v"
1678 done
1679
1680 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1681
1682 die_unknown(){
1683     echo "Unknown option \"$1\"."
1684     echo "See $0 --help for available options."
1685     exit 1
1686 }
1687
1688 show_list() {
1689     suffix=_$1
1690     shift
1691     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1692     exit 0
1693 }
1694
1695 for opt do
1696     optval="${opt#*=}"
1697     case "$opt" in
1698     --extra-ldflags=*) add_ldflags $optval
1699     ;;
1700     --extra-libs=*) add_extralibs $optval
1701     ;;
1702     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1703     ;;
1704     --enable-debug=*) debuglevel="$optval"
1705     ;;
1706     --disable-everything)
1707     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1708     ;;
1709     --enable-*=*|--disable-*=*)
1710     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1711     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1712     eval list=\$$(toupper $thing)_LIST
1713     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1714     $action $(filter "$name" $list)
1715     ;;
1716     --enable-?*|--disable-?*)
1717     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1718     if is_in $option $COMPONENT_LIST; then
1719         test $action = disable && action=unset
1720         eval $action \$$(toupper ${option%s})_LIST
1721     elif is_in $option $CMDLINE_SELECT; then
1722         $action $option
1723     else
1724         die_unknown $opt
1725     fi
1726     ;;
1727     --list-*)
1728         NAME="${opt#--list-}"
1729         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1730         NAME=${NAME%s}
1731         eval show_list $NAME \$$(toupper $NAME)_LIST
1732     ;;
1733     --help|-h) show_help
1734     ;;
1735     *)
1736     optname="${opt%%=*}"
1737     optname="${optname#--}"
1738     optname=$(echo "$optname" | sed 's/-/_/g')
1739     if is_in $optname $CMDLINE_SET; then
1740         eval $optname='$optval'
1741     elif is_in $optname $CMDLINE_APPEND; then
1742         append $optname "$optval"
1743     else
1744          die_unknown $opt
1745     fi
1746     ;;
1747     esac
1748 done
1749
1750 disabled logging && logfile=/dev/null
1751
1752 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1753 set >> $logfile
1754
1755 test -n "$cross_prefix" && enable cross_compile
1756
1757 if enabled cross_compile; then
1758     test -n "$arch" && test -n "$target_os" ||
1759         die "Must specify target arch and OS when cross-compiling"
1760 fi
1761
1762 set_default arch target_os
1763
1764 ar_default="${cross_prefix}${ar_default}"
1765 cc_default="${cross_prefix}${cc_default}"
1766 nm_default="${cross_prefix}${nm_default}"
1767 ranlib="${cross_prefix}${ranlib}"
1768 strip_default="${cross_prefix}${strip_default}"
1769
1770 sysinclude_default="${sysroot}/usr/include"
1771
1772 set_default cc nm strip sysinclude
1773 enabled cross_compile || host_cc_default=$cc
1774 set_default host_cc
1775
1776 exesuf() {
1777     case $1 in
1778         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1779     esac
1780 }
1781
1782 EXESUF=$(exesuf $target_os)
1783 HOSTEXESUF=$(exesuf $host_os)
1784
1785 # set temporary file name
1786 : ${TMPDIR:=$TEMPDIR}
1787 : ${TMPDIR:=$TMP}
1788 : ${TMPDIR:=/tmp}
1789
1790 if ! check_cmd type mktemp; then
1791     # simple replacement for missing mktemp
1792     # NOT SAFE FOR GENERAL USE
1793     mktemp(){
1794         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1795     }
1796 fi
1797
1798 tmpfile(){
1799     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1800         (set -C; exec > $tmp) 2>/dev/null ||
1801         die "Unable to create temporary file in $TMPDIR."
1802     append TMPFILES $tmp
1803     eval $1=$tmp
1804 }
1805
1806 trap 'rm -f -- $TMPFILES' EXIT
1807 trap exit HUP INT TERM
1808
1809 tmpfile TMPC  .c
1810 tmpfile TMPE  $EXESUF
1811 tmpfile TMPH  .h
1812 tmpfile TMPO  .o
1813 tmpfile TMPS  .S
1814 tmpfile TMPV  .ver
1815 tmpfile TMPSH .sh
1816 tmpfile TMPASM .asm
1817
1818 unset -f mktemp
1819
1820 # make sure we can execute files in $TMPDIR
1821 cat > $TMPSH 2>> $logfile <<EOF
1822 #! /bin/sh
1823 EOF
1824 chmod +x $TMPSH >> $logfile 2>&1
1825 if ! $TMPSH >> $logfile 2>&1; then
1826     cat <<EOF
1827 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1828 variable to another directory and make sure that it is not mounted noexec.
1829 EOF
1830     die "Sanity test failed."
1831 fi
1832
1833 filter_cflags=echo
1834 filter_cppflags=echo
1835 filter_asflags=echo
1836
1837 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1838     cc_type=llvm_gcc
1839     cc_version=__VERSION__
1840     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1841     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1842     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1843     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1844     speed_cflags='-O3'
1845     size_cflags='-Os'
1846 elif $cc -v 2>&1 | grep -qi ^gcc; then
1847     cc_type=gcc
1848     cc_version=__VERSION__
1849     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1850     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1851     if ! $cc -dumpversion | grep -q '^2\.'; then
1852         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1853         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1854     fi
1855     speed_cflags='-O3'
1856     size_cflags='-Os'
1857 elif $cc --version 2>/dev/null | grep -q Intel; then
1858     cc_type=icc
1859     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1860     cc_ident=$($cc --version | head -n1)
1861     icc_version=$($cc -dumpversion)
1862     CC_DEPFLAGS='-MMD'
1863     AS_DEPFLAGS='-MMD'
1864     speed_cflags='-O3'
1865     size_cflags='-Os'
1866     noopt_cflags='-O1'
1867 elif $cc -v 2>&1 | grep -q xlc; then
1868     cc_type=xlc
1869     cc_version="AV_STRINGIFY(__IBMC__)"
1870     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1871     speed_cflags='-O5'
1872     size_cflags='-O5 -qcompact'
1873 elif $cc -V 2>/dev/null | grep -q Compaq; then
1874     cc_type=ccc
1875     cc_version="AV_STRINGIFY(__DECC_VER)"
1876     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1877     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1878     debuglevel=3
1879     add_ldflags -Wl,-z,now # calls to libots crash without this
1880     speed_cflags='-fast'
1881     size_cflags='-O1'
1882 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1883     test -d "$sysroot" || die "No valid sysroot specified."
1884     cc_type=armcc
1885     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1886     cc_ident=$($cc --vsn | head -n1)
1887     armcc_conf="$PWD/armcc.conf"
1888     $cc --arm_linux_configure                 \
1889         --arm_linux_config_file="$armcc_conf" \
1890         --configure_sysroot="$sysroot"        \
1891         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1892         die "Error creating armcc configuration file."
1893     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1894     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1895     as_default="${cross_prefix}gcc"
1896     CC_DEPFLAGS='-MMD'
1897     AS_DEPFLAGS='-MMD'
1898     speed_cflags='-O3'
1899     size_cflags='-Os'
1900 elif $cc -version 2>/dev/null | grep -q TMS470; then
1901     cc_type=tms470
1902     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1903     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1904     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1905     CC_O='-fr=$(@D)'
1906     as_default="${cross_prefix}gcc"
1907     ld_default="${cross_prefix}gcc"
1908     TMPO=$(basename $TMPC .c).o
1909     append TMPFILES $TMPO
1910     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1911     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1912     AS_DEPFLAGS='-MMD'
1913     speed_cflags='-O3 -mf=5'
1914     size_cflags='-O3 -mf=2'
1915     filter_cflags=tms470_flags
1916     tms470_flags(){
1917         for flag; do
1918             case $flag in
1919                 -march=*|-mcpu=*)
1920                     case "${flag#*=}" in
1921                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1922                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1923                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1924                         armv6*|arm11*)          echo -mv=6   ;;
1925                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1926                                                 echo -mv=5e  ;;
1927                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1928                     esac
1929                     ;;
1930                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1931                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1932                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1933                 -msoft-float)   echo --float_support=vfplib       ;;
1934                 -O[0-3]|-mf=*)  echo $flag                        ;;
1935                 -g)             echo -g -mn                       ;;
1936                 -pds=*)         echo $flag                        ;;
1937             esac
1938         done
1939     }
1940 elif $cc -v 2>&1 | grep -q clang; then
1941     cc_type=clang
1942     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1943         cc_version=__clang_version__ || cc_version=__VERSION__
1944     cc_ident=$($cc --version | head -n1)
1945     CC_DEPFLAGS='-MMD'
1946     AS_DEPFLAGS='-MMD'
1947     speed_cflags='-O3'
1948     size_cflags='-Os'
1949 elif $cc -V 2>&1 | grep -q Sun; then
1950     cc_type=suncc
1951     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1952     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1953     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1954     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1955     speed_cflags='-O5'
1956     size_cflags='-O5 -xspace'
1957     filter_cflags=suncc_flags
1958     suncc_flags(){
1959         for flag; do
1960             case $flag in
1961                 -march=*|-mcpu=*)
1962                     case "${flag#*=}" in
1963                         native)                   echo -xtarget=native       ;;
1964                         v9|niagara)               echo -xarch=sparc          ;;
1965                         ultrasparc)               echo -xarch=sparcvis       ;;
1966                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1967                         i586|pentium)             echo -xchip=pentium        ;;
1968                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1969                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1970                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1971                         pentium4*)          echo -xtarget=pentium4           ;;
1972                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1973                         *-sse3)             echo -xarch=sse3                 ;;
1974                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1975                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1976                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1977                         k8|opteron|athlon64|athlon-fx)
1978                                                   echo -xarch=sse2a          ;;
1979                         athlon*)                  echo -xarch=pentium_proa   ;;
1980                     esac
1981                     ;;
1982                 -std=c99)             echo -xc99              ;;
1983                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1984                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1985                 -W*,*)                echo $flag              ;;
1986                 -f*-*|-W*)                                    ;;
1987                 *)                    echo $flag              ;;
1988             esac
1989         done
1990     }
1991 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1992     cc_type=pathscale
1993     cc_version=__PATHSCALE__
1994     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1995     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1996     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1997     speed_cflags='-O2'
1998     size_cflags='-Os'
1999 elif $cc -v 2>&1 | grep -q Open64; then
2000     cc_type=open64
2001     cc_version=__OPEN64__
2002     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2003     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2004     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2005     speed_cflags='-O2'
2006     size_cflags='-Os'
2007 fi
2008
2009 test -n "$cc_type" && enable $cc_type ||
2010     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2011
2012 : ${as_default:=$cc}
2013 : ${dep_cc_default:=$cc}
2014 : ${ld_default:=$cc}
2015 set_default ar as dep_cc ld
2016
2017 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2018 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2019
2020 add_cflags $extra_cflags
2021 add_asflags $extra_cflags
2022
2023 if test -n "$sysroot"; then
2024     case "$cc_type" in
2025         gcc|llvm_gcc)
2026             add_cppflags --sysroot="$sysroot"
2027             add_ldflags --sysroot="$sysroot"
2028         ;;
2029         tms470)
2030             add_cppflags -I"$sysinclude"
2031             add_ldflags  --sysroot="$sysroot"
2032         ;;
2033         clang)
2034             add_cppflags -isysroot "$sysroot"
2035             add_ldflags -isysroot "$sysroot"
2036         ;;
2037     esac
2038 fi
2039
2040 if test "$cpu" = host; then
2041     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2042
2043     case "$cc_type" in
2044         gcc|llvm_gcc)
2045             check_native(){
2046                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2047                 sed -n "/$1=/{
2048                             s/.*$1=\\([^ ]*\\).*/\\1/
2049                             p
2050                             q
2051                         }" $TMPE
2052             }
2053             cpu=$(check_native -march || check_native -mcpu)
2054         ;;
2055     esac
2056
2057     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2058 fi
2059
2060 # Deal with common $arch aliases
2061 case "$arch" in
2062     arm*)
2063         arch="arm"
2064     ;;
2065     mips|mipsel|IP*)
2066         arch="mips"
2067     ;;
2068     mips64*)
2069         arch="mips"
2070         subarch="mips64"
2071     ;;
2072     parisc|hppa)
2073         arch="parisc"
2074     ;;
2075     parisc64|hppa64)
2076         arch="parisc"
2077         subarch="parisc64"
2078     ;;
2079     "Power Macintosh"|ppc|powerpc)
2080         arch="ppc"
2081     ;;
2082     ppc64|powerpc64)
2083         arch="ppc"
2084         subarch="ppc64"
2085     ;;
2086     s390|s390x)
2087         arch="s390"
2088     ;;
2089     sh4|sh)
2090         arch="sh4"
2091     ;;
2092     sun4u|sparc64)
2093         arch="sparc"
2094         subarch="sparc64"
2095     ;;
2096     i[3-6]86|i86pc|BePC|x86_64|amd64)
2097         arch="x86"
2098     ;;
2099 esac
2100
2101 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2102 enable $arch
2103
2104 # Add processor-specific flags
2105 if test "$cpu" = generic; then
2106     : do nothing
2107 elif enabled ppc; then
2108
2109     case $(tolower $cpu) in
2110         601|ppc601|powerpc601)
2111             cpuflags="-mcpu=601"
2112             disable altivec
2113         ;;
2114         603*|ppc603*|powerpc603*)
2115             cpuflags="-mcpu=603"
2116             disable altivec
2117         ;;
2118         604*|ppc604*|powerpc604*)
2119             cpuflags="-mcpu=604"
2120             disable altivec
2121         ;;
2122         g3|75*|ppc75*|powerpc75*)
2123             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2124             disable altivec
2125         ;;
2126         g4|745*|ppc745*|powerpc745*)
2127             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2128         ;;
2129         74*|ppc74*|powerpc74*)
2130             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2131         ;;
2132         g5|970|ppc970|powerpc970|power4*)
2133             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2134         ;;
2135         cell)
2136             cpuflags="-mcpu=cell"
2137             enable ldbrx
2138         ;;
2139         e500v2)
2140             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2141             disable altivec
2142         ;;
2143         e500)
2144             cpuflags="-mcpu=8540 -mhard-float"
2145             disable altivec
2146         ;;
2147     esac
2148
2149 elif enabled x86; then
2150
2151     case $cpu in
2152         i[345]86|pentium)
2153             cpuflags="-march=$cpu"
2154             disable mmx
2155         ;;
2156         # targets that do NOT support conditional mov (cmov)
2157         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2158             cpuflags="-march=$cpu"
2159             disable cmov
2160         ;;
2161         # targets that do support conditional mov (cmov)
2162         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2163             cpuflags="-march=$cpu"
2164             enable cmov
2165             enable fast_cmov
2166         ;;
2167         # targets that do support conditional mov but on which it's slow
2168         pentium4|pentium4m|prescott|nocona)
2169             cpuflags="-march=$cpu"
2170             enable cmov
2171             disable fast_cmov
2172         ;;
2173     esac
2174
2175 elif enabled sparc; then
2176
2177     case $cpu in
2178         niagara)
2179             cpuflags="-mcpu=$cpu"
2180             disable vis
2181         ;;
2182         sparc64)
2183             cpuflags="-mcpu=v9"
2184         ;;
2185     esac
2186
2187 elif enabled arm; then
2188
2189     case $cpu in
2190         armv*)
2191             cpuflags="-march=$cpu"
2192             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2193         ;;
2194         *)
2195             cpuflags="-mcpu=$cpu"
2196             case $cpu in
2197                 cortex-a*)                               subarch=armv7a  ;;
2198                 cortex-r*)                               subarch=armv7r  ;;
2199                 cortex-m*)                               subarch=armv7m  ;;
2200                 arm11*)                                  subarch=armv6   ;;
2201                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2202                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2203             esac
2204         ;;
2205     esac
2206
2207 elif enabled alpha; then
2208
2209     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2210
2211 elif enabled bfin; then
2212
2213     cpuflags="-mcpu=$cpu"
2214
2215 elif enabled mips; then
2216
2217     cpuflags="-march=$cpu"
2218
2219 elif enabled avr32; then
2220
2221     case $cpu in
2222         ap7[02]0[0-2])
2223             subarch="avr32_ap"
2224             cpuflags="-mpart=$cpu"
2225         ;;
2226         ap)
2227             subarch="avr32_ap"
2228             cpuflags="-march=$cpu"
2229         ;;
2230         uc3[ab]*)
2231             subarch="avr32_uc"
2232             cpuflags="-mcpu=$cpu"
2233         ;;
2234         uc)
2235             subarch="avr32_uc"
2236             cpuflags="-march=$cpu"
2237         ;;
2238     esac
2239
2240 fi
2241
2242 add_cflags $cpuflags
2243 add_asflags $cpuflags
2244
2245 # compiler sanity check
2246 check_exec <<EOF
2247 int main(void){ return 0; }
2248 EOF
2249 if test "$?" != 0; then
2250     echo "$cc is unable to create an executable file."
2251     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2252         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2253         echo "Only do this if you know what cross compiling means."
2254     fi
2255     die "C compiler test failed."
2256 fi
2257
2258 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2259 check_cflags -std=c99
2260 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2261 #include <stdlib.h>
2262 EOF
2263 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2264 #include <stdlib.h>
2265 EOF
2266
2267 check_host_cflags -std=c99
2268
2269 case "$arch" in
2270     alpha|ia64|mips|parisc|sparc)
2271         spic=$shared
2272     ;;
2273     x86)
2274         subarch="x86_32"
2275         check_cc <<EOF && subarch="x86_64"
2276         int test[(int)sizeof(char*) - 7];
2277 EOF
2278         if test "$subarch" = "x86_64"; then
2279             spic=$shared
2280         fi
2281     ;;
2282 esac
2283
2284 enable $subarch
2285 enabled spic && enable pic
2286
2287 # OS specific
2288 case $target_os in
2289     haiku)
2290         prefix_default="/boot/common"
2291         network_extralibs="-lnetwork"
2292         ;;
2293     sunos)
2294         FFSERVERLDFLAGS=""
2295         SHFLAGS='-shared -Wl,-h,$$(@F)'
2296         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2297         network_extralibs="-lsocket -lnsl"
2298         add_cppflags -D__EXTENSIONS__
2299         nm_opts='-P -g'
2300         ;;
2301     netbsd)
2302         oss_indev_extralibs="-lossaudio"
2303         oss_outdev_extralibs="-lossaudio"
2304         add_cppflags -D_XOPEN_SOURCE=600
2305         ;;
2306     openbsd)
2307         enable malloc_aligned
2308         # On OpenBSD 4.5. the compiler does not use PIC unless
2309         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2310         # however the generated executable will not do anything
2311         # (simply quits with exit-code 1, no crash, no output).
2312         # Thus explicitly enable PIC here.
2313         enable pic
2314         SHFLAGS='-shared'
2315         oss_indev_extralibs="-lossaudio"
2316         oss_outdev_extralibs="-lossaudio"
2317         ;;
2318     freebsd|dragonfly)
2319         enable malloc_aligned
2320         ;;
2321     bsd/os)
2322         add_extralibs -lpoll -lgnugetopt
2323         strip="strip -d"
2324         ;;
2325     darwin)
2326         enable malloc_aligned
2327         gas="gas-preprocessor.pl $cc"
2328         enabled ppc && add_asflags -force_cpusubtype_ALL
2329         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2330         strip="${strip} -x"
2331         add_ldflags -Wl,-dynamic,-search_paths_first
2332         SLIBSUF=".dylib"
2333         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2334         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2335         FFSERVERLDFLAGS=-Wl,-bind_at_load
2336         objformat="macho"
2337         enabled x86_64 && objformat="macho64"
2338         enabled_any pic shared ||
2339             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2340         ;;
2341     mingw32*)
2342         if test $target_os = "mingw32ce"; then
2343             disable network
2344         else
2345             target_os=mingw32
2346         fi
2347         LIBTARGET=i386
2348         if enabled x86_64; then
2349             enable malloc_aligned
2350             LIBTARGET=x64
2351         elif enabled arm; then
2352             LIBTARGET=arm
2353         fi
2354         shlibdir_default="$bindir_default"
2355         disable ffserver
2356         SLIBPREF=""
2357         SLIBSUF=".dll"
2358         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2359         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2360         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2361         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2362             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2363             install -d "$(LIBDIR)"; \
2364             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2365         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2366         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'
2367         objformat="win32"
2368         enable dos_paths
2369         check_cflags -fno-common
2370         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2371                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2372                 die "ERROR: MinGW runtime version must be >= 3.15."
2373         ;;
2374     cygwin*)
2375         target_os=cygwin
2376         shlibdir_default="$bindir_default"
2377         SLIBPREF="cyg"
2378         SLIBSUF=".dll"
2379         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2380         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2381         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2382         objformat="win32"
2383         enable dos_paths
2384         check_cflags -fno-common
2385         ;;
2386     *-dos|freedos|opendos)
2387         disable ffplay ffserver
2388         disable $INDEV_LIST $OUTDEV_LIST
2389         network_extralibs="-lsocket"
2390         objformat="coff"
2391         enable dos_paths
2392         ;;
2393     linux)
2394         enable dv1394
2395         ;;
2396     irix*)
2397         target_os=irix
2398         ranlib="echo ignoring ranlib"
2399         ;;
2400     os/2*)
2401         strip="lxlite"
2402         ln_s="cp -f"
2403         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2404         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2405         FFSERVERLDFLAGS=""
2406         LIBSUF="_s.a"
2407         SLIBPREF=""
2408         SLIBSUF=".dll"
2409         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2410         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2411         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2412           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2413           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2414           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2415           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2416           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2417         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2418           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2419         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2420         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2421         enable dos_paths
2422         ;;
2423     gnu/kfreebsd)
2424         ;;
2425     gnu)
2426         ;;
2427     none)
2428         ;;
2429     *)
2430         die "Unknown OS '$target_os'."
2431         ;;
2432 esac
2433
2434 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2435
2436 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2437
2438 set_default $PATHS_LIST
2439
2440 # we need to build at least one lib type
2441 if ! enabled_any static shared; then
2442     cat <<EOF
2443 At least one library type must be built.
2444 Specify --enable-static to build the static libraries or --enable-shared to
2445 build the shared libraries as well. To only build the shared libraries specify
2446 --disable-static in addition to --enable-shared.
2447 EOF
2448     exit 1;
2449 fi
2450
2451 disabled static && LIBNAME=""
2452
2453 die_license_disabled() {
2454     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2455 }
2456
2457 die_license_disabled gpl libx264
2458 die_license_disabled gpl libxavs
2459 die_license_disabled gpl libxvid
2460 die_license_disabled gpl postproc
2461 die_license_disabled gpl x11grab
2462
2463 die_license_disabled nonfree libfaac
2464
2465 die_license_disabled version3 libopencore_amrnb
2466 die_license_disabled version3 libopencore_amrwb
2467
2468 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2469
2470 check_deps $ARCH_EXT_LIST
2471
2472 disabled optimizations || check_cflags -fomit-frame-pointer
2473
2474 enable_pic() {
2475     enable pic
2476     add_cppflags -DPIC
2477     add_cflags   -fPIC
2478     add_asflags  -fPIC
2479 }
2480
2481 enabled pic && enable_pic
2482
2483 check_cc <<EOF || die "Symbol mangling check failed."
2484 int ff_extern;
2485 EOF
2486 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2487 extern_prefix=${sym%%ff_extern*}
2488
2489 check_cc <<EOF && enable inline_asm
2490 void foo(void) { __asm__ volatile ("" ::); }
2491 EOF
2492
2493 _restrict=
2494 for restrict_keyword in restrict __restrict__ __restrict; do
2495     check_cc <<EOF && _restrict=$restrict_keyword && break
2496 void foo(char * $restrict_keyword p);
2497 EOF
2498 done
2499
2500 check_cc <<EOF && enable attribute_packed
2501 struct { int x; } __attribute__((packed)) x;
2502 EOF
2503
2504 check_cc <<EOF && enable attribute_may_alias
2505 union { int x; } __attribute__((may_alias)) x;
2506 EOF
2507
2508 check_cc <<EOF || die "endian test failed"
2509 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2510 EOF
2511 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2512
2513 if enabled alpha; then
2514
2515     check_cflags -mieee
2516
2517 elif enabled arm; then
2518
2519     check_cflags -marm
2520     nogas=die
2521
2522     check_ld <<EOF && enable vfp_args
2523 __asm__ (".eabi_attribute 28, 1");
2524 int main(void) { return 0; }
2525 EOF
2526
2527     # We have to check if pld is a nop and disable it.
2528     check_asm pld '"pld [r0]"'
2529
2530     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2531     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2532     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2533     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2534     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2535     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2536
2537     enabled_all armv6t2 shared !pic && enable_pic
2538
2539 elif enabled mips; then
2540
2541     check_asm loongson '"dmult.g $1, $2, $3"'
2542     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2543
2544 elif enabled ppc; then
2545
2546     enable local_aligned_8 local_aligned_16
2547
2548     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2549     check_asm ibm_asm   '"add 0, 0, 0"'
2550     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2551     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2552
2553     # AltiVec flags: The FSF version of GCC differs from the Apple version
2554     if enabled altivec; then
2555         nogas=warn
2556         check_cflags -maltivec -mabi=altivec &&
2557         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2558         check_cflags -faltivec
2559
2560         # check if our compiler supports Motorola AltiVec C API
2561         check_cc <<EOF || disable altivec
2562 $inc_altivec_h
2563 int main(void) {
2564     vector signed int v1, v2, v3;
2565     v1 = vec_add(v2,v3);
2566     return 0;
2567 }
2568 EOF
2569
2570         # check if our compiler supports braces for vector declarations
2571         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2572 $inc_altivec_h
2573 int main (void) { (vector int) {1}; return 0; }
2574 EOF
2575     fi
2576
2577 elif enabled sparc; then
2578
2579     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2580         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2581
2582 elif enabled x86; then
2583
2584     enable local_aligned_8 local_aligned_16
2585
2586     # check whether EBP is available on x86
2587     # As 'i' is stored on the stack, this program will crash
2588     # if the base pointer is used to access it because the
2589     # base pointer is cleared in the inline assembly code.
2590     check_exec_crash <<EOF && enable ebp_available
2591     volatile int i=0;
2592     __asm__ volatile (
2593         "xorl %%ebp, %%ebp"
2594     ::: "%ebp");
2595     return i;
2596 EOF
2597
2598     # check whether EBX is available on x86
2599     check_asm ebx_available '""::"b"(0)' &&
2600         check_asm ebx_available '"":::"%ebx"'
2601
2602     # check whether xmm clobbers are supported
2603     check_asm xmm_clobbers '"":::"%xmm0"'
2604
2605     # check whether more than 10 operands are supported
2606     check_cc <<EOF && enable ten_operands
2607 int main(void) {
2608     int x=0;
2609     __asm__ volatile(
2610         ""
2611         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2612     );
2613     return 0;
2614 }
2615 EOF
2616
2617     # check whether binutils is new enough to compile SSSE3/MMX2
2618     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2619     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2620
2621     check_asm bswap '"bswap %%eax" ::: "%eax"'
2622
2623     if ! disabled_any asm mmx yasm; then
2624         if check_cmd $yasmexe --version; then
2625             enabled x86_64 && yasm_extra="-m amd64"
2626             yasm_debug="-g dwarf2"
2627         elif check_cmd nasm -v; then
2628             yasmexe=nasm
2629             yasm_debug="-g -F dwarf"
2630             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2631         fi
2632
2633         YASMFLAGS="-f $objformat $yasm_extra"
2634         enabled pic               && append YASMFLAGS "-DPIC"
2635         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2636         case "$objformat" in
2637             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2638         esac
2639
2640         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2641             die "yasm not found, use --disable-yasm for a crippled build"
2642     fi
2643
2644     case "$cpu" in
2645         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2646             disable fast_clz
2647         ;;
2648     esac
2649
2650 fi
2651
2652 if enabled asm; then
2653     as=${gas:=$as}
2654     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2655         $nogas "GNU assembler not found, install gas-preprocessor"
2656 fi
2657
2658 if check_func dlopen; then
2659     ldl=
2660 elif check_func dlopen -ldl; then
2661     ldl=-ldl
2662 fi
2663
2664 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2665 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2666
2667 check_func  fcntl
2668 check_func  fork
2669 check_func  getaddrinfo $network_extralibs
2670 check_func  gethrtime
2671 check_func  getrusage
2672 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2673 check_func  inet_aton $network_extralibs
2674 check_func  isatty
2675 check_func  ${malloc_prefix}memalign            && enable memalign
2676 check_func  mkstemp
2677 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2678 check_func  setrlimit
2679 check_func  strerror_r
2680 check_func  strtok_r
2681 check_func_headers io.h setmode
2682 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2683 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2684 check_func_headers windows.h GetProcessTimes
2685 check_func_headers windows.h VirtualAlloc
2686
2687 check_header conio.h
2688 check_header dlfcn.h
2689 check_header dxva2api.h
2690 check_header malloc.h
2691 check_header poll.h
2692 check_header sys/mman.h
2693 check_header sys/resource.h
2694 check_header sys/select.h
2695 check_header termios.h
2696 check_header vdpau/vdpau.h
2697 check_header vdpau/vdpau_x11.h
2698 check_header X11/extensions/XvMClib.h
2699
2700 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2701
2702 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2703      enabled_any $need_memalign ; then
2704     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2705 fi
2706
2707 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2708 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2709
2710 # check for some common methods of building with pthread support
2711 # do this before the optional library checks as some of them require pthreads
2712 if ! disabled pthreads && ! enabled w32threads; then
2713     enable pthreads
2714     if check_func pthread_create; then
2715         :
2716     elif check_func pthread_create -pthread; then
2717         add_cflags -pthread
2718         add_extralibs -pthread
2719     elif check_func pthread_create -pthreads; then
2720         add_cflags -pthreads
2721         add_extralibs -pthreads
2722     elif check_func pthread_create -lpthreadGC2; then
2723         add_extralibs -lpthreadGC2
2724     elif ! check_lib pthread.h pthread_create -lpthread; then
2725         disable pthreads
2726     fi
2727 fi
2728
2729 for thread in $THREADS_LIST; do
2730     if enabled $thread; then
2731         test -n "$thread_type" &&
2732             die "ERROR: Only one thread type must be selected." ||
2733             thread_type="$thread"
2734     fi
2735 done
2736
2737 check_lib math.h sin -lm
2738 disabled vaapi || check_lib va/va.h vaInitialize -lva
2739
2740 check_mathfunc exp2
2741 check_mathfunc exp2f
2742 check_mathfunc llrint
2743 check_mathfunc llrintf
2744 check_mathfunc log2
2745 check_mathfunc log2f
2746 check_mathfunc lrint
2747 check_mathfunc lrintf
2748 check_mathfunc round
2749 check_mathfunc roundf
2750 check_mathfunc truncf
2751
2752 # these are off by default, so fail if requested and not available
2753 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2754 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2755 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2756                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2757                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2758 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2759 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2760 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2761 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2762 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2763 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2764 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2765                         die "ERROR: libopencv not found"; }
2766 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2767 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2768                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2769 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2770                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2771 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2772 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2773 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2774 enabled libvpx     && {
2775     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2776                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2777     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2778                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2779 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2780                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2781                         die "ERROR: libx264 version must be >= 0.99."; }
2782 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2783 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2784 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2785
2786 # libdc1394 check
2787 if enabled libdc1394; then
2788     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2789         enable libdc1394_2; } ||
2790     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2791         enable libdc1394_1; } ||
2792     die "ERROR: No version of libdc1394 found "
2793 fi
2794
2795 SDL_CONFIG="${cross_prefix}sdl-config"
2796 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2797     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2798     sdl_libs=$("${SDL_CONFIG}" --libs)
2799     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2800     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2801     enable sdl &&
2802     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2803 fi
2804
2805 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2806
2807 if enabled network; then
2808     check_type "sys/types.h sys/socket.h" socklen_t
2809     check_type netdb.h "struct addrinfo"
2810     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2811     check_type netinet/in.h "struct sockaddr_in6"
2812     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2813     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2814     # Prefer arpa/inet.h over winsock2
2815     if check_header arpa/inet.h ; then
2816         check_func closesocket
2817     elif check_header winsock2.h ; then
2818         check_func_headers winsock2.h closesocket -lws2 && \
2819             network_extralibs="-lws2" || \
2820         { check_func_headers winsock2.h closesocket -lws2_32 && \
2821             network_extralibs="-lws2_32"; }
2822         check_type ws2tcpip.h socklen_t
2823         check_type ws2tcpip.h "struct addrinfo"
2824         check_type ws2tcpip.h "struct ipv6_mreq"
2825         check_type ws2tcpip.h "struct sockaddr_in6"
2826         check_type ws2tcpip.h "struct sockaddr_storage"
2827         check_struct winsock2.h "struct sockaddr" sa_len
2828     else
2829         disable network
2830     fi
2831 fi
2832
2833 check_header linux/videodev.h
2834 check_header linux/videodev2.h
2835 check_header sys/videoio.h
2836
2837 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2838 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2839 # w32api 3.12 had it defined wrong
2840 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2841
2842 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2843 { check_header dev/bktr/ioctl_meteor.h &&
2844   check_header dev/bktr/ioctl_bt848.h; } ||
2845 { check_header machine/ioctl_meteor.h &&
2846   check_header machine/ioctl_bt848.h; } ||
2847 { check_header dev/video/meteor/ioctl_meteor.h &&
2848   check_header dev/video/bktr/ioctl_bt848.h; } ||
2849 check_header dev/ic/bt8xx.h
2850
2851 check_header sys/soundcard.h
2852 check_header soundcard.h
2853
2854 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2855
2856 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2857
2858 enabled x11grab                         &&
2859 check_header X11/Xlib.h                 &&
2860 check_header X11/extensions/XShm.h      &&
2861 check_header X11/extensions/Xfixes.h    &&
2862 check_func XOpenDisplay -lX11           &&
2863 check_func XShmCreateImage -lX11 -lXext &&
2864 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2865
2866 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2867 check_cpp_condition \
2868     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2869     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2870       disable vdpau; }
2871 fi
2872
2873 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2874
2875 # add some useful compiler flags if supported
2876 check_cflags -Wdeclaration-after-statement
2877 check_cflags -Wall
2878 check_cflags -Wno-parentheses
2879 check_cflags -Wno-switch
2880 check_cflags -Wdisabled-optimization
2881 check_cflags -Wpointer-arith
2882 check_cflags -Wredundant-decls
2883 check_cflags -Wno-pointer-sign
2884 check_cflags -Wcast-qual
2885 check_cflags -Wwrite-strings
2886 check_cflags -Wtype-limits
2887 check_cflags -Wundef
2888 check_cflags -Wmissing-prototypes
2889 enabled extra_warnings && check_cflags -Winline
2890
2891 # add some linker flags
2892 check_ldflags -Wl,--warn-common
2893 check_ldflags -Wl,--as-needed
2894 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'
2895 check_ldflags -Wl,-Bsymbolic
2896
2897 echo "X{};" > $TMPV
2898 if test_ldflags -Wl,--version-script,$TMPV; then
2899     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2900     check_cc <<EOF && enable symver_asm_label
2901 void ff_foo(void) __asm__ ("av_foo@VERSION");
2902 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2903 EOF
2904     check_cc <<EOF && enable symver_gnu_asm
2905 __asm__(".symver ff_foo,av_foo@VERSION");
2906 void ff_foo(void) {}
2907 EOF
2908 fi
2909
2910 if enabled small; then
2911     add_cflags $size_cflags
2912     optimizations="small"
2913 elif enabled optimizations; then
2914     add_cflags $speed_cflags
2915 else
2916     add_cflags $noopt_cflags
2917 fi
2918 check_cflags -fno-math-errno
2919 check_cflags -fno-signed-zeros
2920
2921 if enabled icc; then
2922     # Just warnings, no remarks
2923     check_cflags -w1
2924     # -wd: Disable following warnings
2925     # 144, 167, 556: -Wno-pointer-sign
2926     # 10006: ignoring unknown option -fno-signed-zeros
2927     # 10148: ignoring unknown option -Wno-parentheses
2928     # 10156: ignoring option '-W'; no argument required
2929     check_cflags -wd144,167,556,10006,10148,10156
2930     # 11030: Warning unknown option --as-needed
2931     # 10156: ignoring option '-export'; no argument required
2932     check_ldflags -wd10156,11030
2933     # Allow to compile with optimizations
2934     check_ldflags -march=$cpu
2935     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2936     enable ebp_available
2937     if enabled x86_32; then
2938         test ${icc_version%%.*} -ge 11 && \
2939             check_cflags -falign-stack=maintain-16-byte || \
2940             disable aligned_stack
2941     fi
2942 elif enabled ccc; then
2943     # disable some annoying warnings
2944     add_cflags -msg_disable cvtu32to64
2945     add_cflags -msg_disable embedcomment
2946     add_cflags -msg_disable needconstext
2947     add_cflags -msg_disable nomainieee
2948     add_cflags -msg_disable ptrmismatch1
2949     add_cflags -msg_disable unreachcode
2950 elif enabled gcc; then
2951     check_cflags -fno-tree-vectorize
2952     check_cflags -Werror=implicit-function-declaration
2953     check_cflags -Werror=missing-prototypes
2954 elif enabled llvm_gcc; then
2955     check_cflags -mllvm -stack-alignment=16
2956 elif enabled clang; then
2957     check_cflags -mllvm -stack-alignment=16
2958     check_cflags -Qunused-arguments
2959 elif enabled armcc; then
2960     # 2523: use of inline assembler is deprecated
2961     add_cflags -W${armcc_opt},--diag_suppress=2523
2962     add_cflags -W${armcc_opt},--diag_suppress=1207
2963 elif enabled tms470; then
2964     add_cflags -pds=824 -pds=837
2965 fi
2966
2967 enabled_any $THREADS_LIST      && enable threads
2968
2969 check_deps $CONFIG_LIST       \
2970            $CONFIG_EXTRA      \
2971            $HAVE_LIST         \
2972            $DECODER_LIST      \
2973            $ENCODER_LIST      \
2974            $HWACCEL_LIST      \
2975            $PARSER_LIST       \
2976            $BSF_LIST          \
2977            $DEMUXER_LIST      \
2978            $MUXER_LIST        \
2979            $FILTER_LIST       \
2980            $INDEV_LIST        \
2981            $OUTDEV_LIST       \
2982            $PROTOCOL_LIST     \
2983            $ACODEC_TESTS      \
2984            $VCODEC_TESTS      \
2985            $LAVF_TESTS        \
2986            $LAVFI_TESTS       \
2987            $SEEK_TESTS        \
2988
2989 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2990
2991 echo "install prefix            $prefix"
2992 echo "source path               $source_path"
2993 echo "C compiler                $cc"
2994 echo "ARCH                      $arch ($cpu)"
2995 if test "$build_suffix" != ""; then
2996     echo "build suffix              $build_suffix"
2997 fi
2998 if test "$extra_version" != ""; then
2999     echo "version string suffix     $extra_version"
3000 fi
3001 echo "big-endian                ${bigendian-no}"
3002 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3003 if enabled x86; then
3004     echo "yasm                      ${yasm-no}"
3005     echo "MMX enabled               ${mmx-no}"
3006     echo "MMX2 enabled              ${mmx2-no}"
3007     echo "3DNow! enabled            ${amd3dnow-no}"
3008     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3009     echo "SSE enabled               ${sse-no}"
3010     echo "SSSE3 enabled             ${ssse3-no}"
3011     echo "CMOV enabled              ${cmov-no}"
3012     echo "CMOV is fast              ${fast_cmov-no}"
3013     echo "EBX available             ${ebx_available-no}"
3014     echo "EBP available             ${ebp_available-no}"
3015     echo "10 operands supported     ${ten_operands-no}"
3016 fi
3017 if enabled arm; then
3018     echo "ARMv5TE enabled           ${armv5te-no}"
3019     echo "ARMv6 enabled             ${armv6-no}"
3020     echo "ARMv6T2 enabled           ${armv6t2-no}"
3021     echo "ARM VFP enabled           ${armvfp-no}"
3022     echo "IWMMXT enabled            ${iwmmxt-no}"
3023     echo "NEON enabled              ${neon-no}"
3024 fi
3025 if enabled mips; then
3026     echo "MMI enabled               ${mmi-no}"
3027 fi
3028 if enabled ppc; then
3029     echo "AltiVec enabled           ${altivec-no}"
3030     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3031     echo "dcbzl available           ${dcbzl-no}"
3032 fi
3033 if enabled sparc; then
3034     echo "VIS enabled               ${vis-no}"
3035 fi
3036 echo "debug symbols             ${debug-no}"
3037 echo "strip symbols             ${stripping-no}"
3038 echo "optimizations             ${optimizations-no}"
3039 echo "static                    ${static-no}"
3040 echo "shared                    ${shared-no}"
3041 echo "postprocessing support    ${postproc-no}"
3042 echo "new filter support        ${avfilter-no}"
3043 echo "network support           ${network-no}"
3044 echo "threading support         ${thread_type-no}"
3045 echo "SDL support               ${sdl-no}"
3046 echo "Sun medialib support      ${mlib-no}"
3047 echo "AVISynth enabled          ${avisynth-no}"
3048 echo "frei0r enabled            ${frei0r-no}"
3049 echo "libdc1394 support         ${libdc1394-no}"
3050 echo "libdirac enabled          ${libdirac-no}"
3051 echo "libfaac enabled           ${libfaac-no}"
3052 echo "libgsm enabled            ${libgsm-no}"
3053 echo "libmp3lame enabled        ${libmp3lame-no}"
3054 echo "libnut enabled            ${libnut-no}"
3055 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3056 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3057 echo "libopencv support         ${libopencv-no}"
3058 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3059 echo "librtmp enabled           ${librtmp-no}"
3060 echo "libschroedinger enabled   ${libschroedinger-no}"
3061 echo "libspeex enabled          ${libspeex-no}"
3062 echo "libtheora enabled         ${libtheora-no}"
3063 echo "libvorbis enabled         ${libvorbis-no}"
3064 echo "libvpx enabled            ${libvpx-no}"
3065 echo "libx264 enabled           ${libx264-no}"
3066 echo "libxavs enabled           ${libxavs-no}"
3067 echo "libxvid enabled           ${libxvid-no}"
3068 echo "zlib enabled              ${zlib-no}"
3069 echo "bzlib enabled             ${bzlib-no}"
3070 echo
3071
3072 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3073     echo "Enabled ${type}s:"
3074     eval list=\$$(toupper $type)_LIST
3075     print_enabled '_*' $list | sort | pr -3 -t
3076     echo
3077 done
3078
3079 license="LGPL version 2.1 or later"
3080 if enabled nonfree; then
3081     license="nonfree and unredistributable"
3082 elif enabled gplv3; then
3083     license="GPL version 3 or later"
3084 elif enabled lgplv3; then
3085     license="LGPL version 3 or later"
3086 elif enabled gpl; then
3087     license="GPL version 2 or later"
3088 fi
3089
3090 echo "License: $license"
3091
3092 echo "Creating config.mak and config.h..."
3093
3094 # build tree in object directory if source path is different from current one
3095 if enabled source_path_used; then
3096     DIRS="
3097         doc
3098         libavcodec
3099         libavcodec/$arch
3100         libavcore
3101         libavdevice
3102         libavfilter
3103         libavfilter/$arch
3104         libavformat
3105         libavutil
3106         libavutil/$arch
3107         libpostproc
3108         libswscale
3109         libswscale/$arch
3110         tests
3111         tools
3112     "
3113     FILES="
3114         Makefile
3115         common.mak
3116         subdir.mak
3117         doc/texi2pod.pl
3118         libavcodec/Makefile
3119         libavcodec/${arch}/Makefile
3120         libavcore/Makefile
3121         libavdevice/Makefile
3122         libavfilter/Makefile
3123         libavfilter/${arch}/Makefile
3124         libavformat/Makefile
3125         libavutil/Makefile
3126         libpostproc/Makefile
3127         libswscale/Makefile
3128     "
3129     map 'mkdir -p $v' $DIRS;
3130     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3131 fi
3132
3133 enabled stripping || strip="echo skipping strip"
3134
3135 config_files="$TMPH config.mak"
3136
3137 cat > config.mak <<EOF
3138 # Automatically generated by configure - do not modify!
3139 ifndef FFMPEG_CONFIG_MAK
3140 FFMPEG_CONFIG_MAK=1
3141 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3142 prefix=$prefix
3143 LIBDIR=\$(DESTDIR)$libdir
3144 SHLIBDIR=\$(DESTDIR)$shlibdir
3145 INCDIR=\$(DESTDIR)$incdir
3146 BINDIR=\$(DESTDIR)$bindir
3147 DATADIR=\$(DESTDIR)$datadir
3148 MANDIR=\$(DESTDIR)$mandir
3149 SRC_PATH="$source_path"
3150 SRC_PATH_BARE=$source_path
3151 BUILD_ROOT="$PWD"
3152 CC_IDENT=$cc_ident
3153 ARCH=$arch
3154 CC=$cc
3155 AS=$as
3156 LD=$ld
3157 DEPCC=$dep_cc
3158 YASM=$yasmexe
3159 YASMDEP=$yasmexe
3160 AR=$ar
3161 RANLIB=$ranlib
3162 CP=cp -p
3163 LN_S=$ln_s
3164 STRIP=$strip
3165 CPPFLAGS=$CPPFLAGS
3166 CFLAGS=$CFLAGS
3167 ASFLAGS=$ASFLAGS
3168 CC_O=$CC_O
3169 LDFLAGS=$LDFLAGS
3170 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3171 SHFLAGS=$SHFLAGS
3172 YASMFLAGS=$YASMFLAGS
3173 BUILDSUF=$build_suffix
3174 FULLNAME=$FULLNAME
3175 LIBPREF=$LIBPREF
3176 LIBSUF=$LIBSUF
3177 LIBNAME=$LIBNAME
3178 SLIBPREF=$SLIBPREF
3179 SLIBSUF=$SLIBSUF
3180 EXESUF=$EXESUF
3181 EXTRA_VERSION=$extra_version
3182 DEPFLAGS=$DEPFLAGS
3183 CCDEP=$CCDEP
3184 ASDEP=$ASDEP
3185 CC_DEPFLAGS=$CC_DEPFLAGS
3186 AS_DEPFLAGS=$AS_DEPFLAGS
3187 HOSTCC=$host_cc
3188 HOSTCFLAGS=$host_cflags
3189 HOSTEXESUF=$HOSTEXESUF
3190 HOSTLDFLAGS=$host_ldflags
3191 HOSTLIBS=$host_libs
3192 TARGET_EXEC=$target_exec
3193 TARGET_PATH=$target_path
3194 SDL_LIBS=$sdl_libs
3195 SDL_CFLAGS=$sdl_cflags
3196 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3197 EXTRALIBS=$extralibs
3198 INSTALL=install
3199 LIBTARGET=${LIBTARGET}
3200 SLIBNAME=${SLIBNAME}
3201 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3202 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3203 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3204 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3205 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3206 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3207 SAMPLES=$samples
3208 EOF
3209
3210 get_version(){
3211     name=$1
3212     file=$source_path/$2
3213     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3214     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3215     lcname=$(tolower $name)
3216     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3217     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3218 }
3219
3220 get_version LIBSWSCALE  libswscale/swscale.h
3221 get_version LIBPOSTPROC libpostproc/postprocess.h
3222 get_version LIBAVCODEC  libavcodec/avcodec.h
3223 get_version LIBAVCORE   libavcore/avcore.h
3224 get_version LIBAVDEVICE libavdevice/avdevice.h
3225 get_version LIBAVFORMAT libavformat/avformat.h
3226 get_version LIBAVUTIL   libavutil/avutil.h
3227 get_version LIBAVFILTER libavfilter/avfilter.h
3228
3229 cat > $TMPH <<EOF
3230 /* Automatically generated by configure - do not modify! */
3231 #ifndef FFMPEG_CONFIG_H
3232 #define FFMPEG_CONFIG_H
3233 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3234 #define FFMPEG_LICENSE "$(c_escape $license)"
3235 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3236 #define CC_TYPE "$cc_type"
3237 #define CC_VERSION $cc_version
3238 #define restrict $_restrict
3239 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3240 #define EXTERN_PREFIX "${extern_prefix}"
3241 #define EXTERN_ASM ${extern_prefix}
3242 #define SLIBSUF "$SLIBSUF"
3243 EOF
3244
3245 test -n "$malloc_prefix" &&
3246     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3247
3248 if enabled small || disabled optimizations; then
3249     echo "#undef  av_always_inline"  >> $TMPH
3250     if enabled small; then
3251         echo "#define av_always_inline inline"  >> $TMPH
3252     else
3253         echo "#define av_always_inline av_unused"  >> $TMPH
3254     fi
3255 fi
3256
3257 if enabled yasm; then
3258     append config_files $TMPASM
3259     printf '' >$TMPASM
3260 fi
3261
3262 print_config ARCH_   "$config_files" $ARCH_LIST
3263 print_config HAVE_   "$config_files" $HAVE_LIST
3264 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3265                                      $CONFIG_EXTRA      \
3266                                      $DECODER_LIST      \
3267                                      $ENCODER_LIST      \
3268                                      $HWACCEL_LIST      \
3269                                      $PARSER_LIST       \
3270                                      $BSF_LIST          \
3271                                      $DEMUXER_LIST      \
3272                                      $MUXER_LIST        \
3273                                      $FILTER_LIST       \
3274                                      $PROTOCOL_LIST     \
3275                                      $INDEV_LIST        \
3276                                      $OUTDEV_LIST       \
3277
3278 cat >>config.mak <<EOF
3279 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3280 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3281 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3282 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3283 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3284 EOF
3285
3286 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3287 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3288
3289 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3290 cp_if_changed $TMPH config.h
3291 touch .config
3292
3293 enabled yasm && cp_if_changed $TMPASM config.asm
3294
3295 cat > $TMPH <<EOF
3296 /* Generated by ffconf */
3297 #ifndef AVUTIL_AVCONFIG_H
3298 #define AVUTIL_AVCONFIG_H
3299 EOF
3300
3301 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3302
3303 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3304
3305 cp_if_changed $TMPH libavutil/avconfig.h
3306
3307 test -n "$WARNINGS" && printf "\n$WARNINGS"
3308
3309 # build pkg-config files
3310
3311 pkgconfig_generate(){
3312 name=$1
3313 shortname=${name#lib}${build_suffix}
3314 comment=$2
3315 version=$3
3316 libs=$4
3317 requires=$5
3318 enabled ${name#lib} || return 0
3319 cat <<EOF > $name/$name.pc
3320 prefix=$prefix
3321 exec_prefix=\${prefix}
3322 libdir=$libdir
3323 includedir=$incdir
3324
3325 Name: $name
3326 Description: $comment
3327 Version: $version
3328 Requires: $(enabled shared || echo $requires)
3329 Requires.private: $(enabled shared && echo $requires)
3330 Conflicts:
3331 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3332 Libs.private: $(enabled shared && echo $libs)
3333 Cflags: -I\${includedir}
3334 EOF
3335 cat <<EOF > $name/$name-uninstalled.pc
3336 prefix=
3337 exec_prefix=
3338 libdir=\${pcfiledir}
3339 includedir=${source_path}
3340
3341 Name: $name
3342 Description: $comment
3343 Version: $version
3344 Requires: $requires
3345 Conflicts:
3346 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3347 Cflags: -I\${includedir}
3348 EOF
3349 }
3350
3351 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3352 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3353 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3354 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3355 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3356 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3357 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3358 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"