git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avcore         disable libavcore build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable GPLed postprocessing support [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 167                            and libraw1394 [no]
 168   --enable-libdirac        enable Dirac support via libdirac [no]
 169   --enable-libfaac         enable FAAC support via libfaac [no]
 170   --enable-libgsm          enable GSM support via libgsm [no]
 171   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 172   --enable-libnut          enable NUT (de)muxing via libnut,
 173                            native (de)muxer exists [no]
 174   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 175   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 176   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 177   --enable-libspeex        enable Speex decoding via libspeex [no]
 178   --enable-libtheora       enable Theora encoding via libtheora [no]
 179   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 180                            native implementation exists [no]
 181   --enable-libvpx          enable VP8 support via libvpx [no]
 182   --enable-libx264         enable H.264 encoding via x264 [no]
 183   --enable-libxavs         enable AVS encoding via xavs [no]
 184   --enable-libxvid         enable Xvid encoding via xvidcore,
 185                            native MPEG-4/Xvid encoder exists [no]
 186   --enable-mlib            enable Sun medialib [no]
 187   --enable-zlib            enable zlib [autodetect]
 188
 189 Advanced options (experts only):
 190   --source-path=PATH       path to source code [$source_path]
 191   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 192   --enable-cross-compile   assume a cross-compiler is used
 193   --sysroot=PATH           root of cross-build tree
 194   --sysinclude=PATH        location of cross-build system headers
 195   --target-os=OS           compiler targets OS [$target_os]
 196   --target-exec=CMD        command to run executables on target
 197   --target-path=DIR        path to view of build directory on target
 198   --nm=NM                  use nm tool
 199   --ar=AR                  use archive tool AR [$ar_default]
 200   --as=AS                  use assembler AS [$as_default]
 201   --cc=CC                  use C compiler CC [$cc_default]
 202   --ld=LD                  use linker LD
 203   --host-cc=HOSTCC         use host C compiler HOSTCC
 204   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 205   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 206   --host-libs=HLIBS        use libs HLIBS when linking for host
 207   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 208   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 209   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 210   --extra-version=STRING   version string suffix []
 211   --build-suffix=SUFFIX    library name suffix []
 212   --arch=ARCH              select architecture [$arch]
 213   --cpu=CPU                select the minimum required CPU (affects
 214                            instruction selection, may crash on older CPUs)
 215   --disable-asm            disable all assembler optimizations
 216   --disable-altivec        disable AltiVec optimizations
 217   --disable-amd3dnow       disable 3DNow! optimizations
 218   --disable-amd3dnowext    disable 3DNow! extended optimizations
 219   --disable-mmx            disable MMX optimizations
 220   --disable-mmx2           disable MMX2 optimizations
 221   --disable-sse            disable SSE optimizations
 222   --disable-ssse3          disable SSSE3 optimizations
 223   --disable-armv5te        disable armv5te optimizations
 224   --disable-armv6          disable armv6 optimizations
 225   --disable-armv6t2        disable armv6t2 optimizations
 226   --disable-armvfp         disable ARM VFP optimizations
 227   --disable-iwmmxt         disable iwmmxt optimizations
 228   --disable-mmi            disable MMI optimizations
 229   --disable-neon           disable neon optimizations
 230   --disable-vis            disable VIS optimizations
 231   --disable-yasm           disable use of yasm assembler
 232   --enable-pic             build position-independent code
 233   --malloc-prefix=PFX      prefix malloc and related names with PFX
 234   --enable-sram            allow use of on-chip SRAM
 235
 236 Developer options (useful when working on FFmpeg itself):
 237   --disable-debug          disable debugging symbols
 238   --enable-debug=LEVEL     set the debug level [$debuglevel]
 239   --disable-optimizations  disable compiler optimizations
 240   --enable-extra-warnings  enable more compiler warnings
 241   --disable-stripping      disable stripping of executables and shared libraries
 242   --samples=PATH           location of test samples for FATE
 243
 244 NOTE: Object files are built at the place where configure is launched.
 245 EOF
 246   exit 0
 247 }
 248
 249 quotes='""'
 250
 251 log(){
 252     echo "$@" >> $logfile
 253 }
 254
 255 log_file(){
 256     log BEGIN $1
 257     pr -n -t $1 >> $logfile
 258     log END $1
 259 }
 260
 261 echolog(){
 262     log "$@"
 263     echo "$@"
 264 }
 265
 266 warn(){
 267     log "WARNING: $*"
 268     WARNINGS="${WARNINGS}WARNING: $*\n"
 269 }
 270
 271 die(){
 272     echolog "$@"
 273     cat <<EOF
 274
 275 If you think configure made a mistake, make sure you are using the latest
 276 version from SVN.  If the latest version fails, report the problem to the
 277 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 278 EOF
 279     if disabled logging; then
 280         cat <<EOF
 281 Rerun configure with logging enabled (do not use --disable-logging), and
 282 include the log this produces with your report.
 283 EOF
 284     else
 285 cat <<EOF
 286 Include the log file "$logfile" produced by configure as this will help
 287 solving the problem.
 288 EOF
 289     fi
 290     exit 1
 291 }
 292
 293 # Avoid locale weirdness, besides we really just want to translate ASCII.
 294 toupper(){
 295     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 296 }
 297
 298 tolower(){
 299     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 300 }
 301
 302 c_escape(){
 303     echo "$*" | sed 's/["\\]/\\\0/g'
 304 }
 305
 306 sh_quote(){
 307     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 308     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 309     echo "$v"
 310 }
 311
 312 filter(){
 313     pat=$1
 314     shift
 315     for v; do
 316         eval "case $v in $pat) echo $v ;; esac"
 317     done
 318 }
 319
 320 map(){
 321     m=$1
 322     shift
 323     for v; do eval $m; done
 324 }
 325
 326 set_all(){
 327     value=$1
 328     shift
 329     for var in $*; do
 330         eval $var=$value
 331     done
 332 }
 333
 334 set_weak(){
 335     value=$1
 336     shift
 337     for var; do
 338         eval : \${$var:=$value}
 339     done
 340 }
 341
 342 pushvar(){
 343     for var in $*; do
 344         eval level=\${${var}_level:=0}
 345         eval ${var}_${level}="\$$var"
 346         eval ${var}_level=$(($level+1))
 347     done
 348 }
 349
 350 popvar(){
 351     for var in $*; do
 352         eval level=\${${var}_level:-0}
 353         test $level = 0 && continue
 354         eval level=$(($level-1))
 355         eval $var="\${${var}_${level}}"
 356         eval ${var}_level=$level
 357         eval unset ${var}_${level}
 358     done
 359 }
 360
 361 enable(){
 362     set_all yes $*
 363 }
 364
 365 disable(){
 366     set_all no $*
 367 }
 368
 369 enable_weak(){
 370     set_weak yes $*
 371 }
 372
 373 disable_weak(){
 374     set_weak no $*
 375 }
 376
 377 enable_safe(){
 378     for var; do
 379         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 380     done
 381 }
 382
 383 disable_safe(){
 384     for var; do
 385         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 386     done
 387 }
 388
 389 do_enable_deep(){
 390     for var; do
 391         enabled $var && continue
 392         eval sel="\$${var}_select"
 393         eval sgs="\$${var}_suggest"
 394         pushvar var sgs
 395         enable_deep $sel
 396         popvar sgs
 397         enable_deep_weak $sgs
 398         popvar var
 399     done
 400 }
 401
 402 enable_deep(){
 403     do_enable_deep $*
 404     enable $*
 405 }
 406
 407 enable_deep_weak(){
 408     do_enable_deep $*
 409     enable_weak $*
 410 }
 411
 412 enabled(){
 413     test "${1#!}" = "$1" && op== || op=!=
 414     eval test "x\$${1#!}" $op "xyes"
 415 }
 416
 417 disabled(){
 418     test "${1#!}" = "$1" && op== || op=!=
 419     eval test "x\$${1#!}" $op "xno"
 420 }
 421
 422 enabled_all(){
 423     for opt; do
 424         enabled $opt || return 1
 425     done
 426 }
 427
 428 disabled_all(){
 429     for opt; do
 430         disabled $opt || return 1
 431     done
 432 }
 433
 434 enabled_any(){
 435     for opt; do
 436         enabled $opt && return 0
 437     done
 438 }
 439
 440 disabled_any(){
 441     for opt; do
 442         disabled $opt && return 0
 443     done
 444     return 1
 445 }
 446
 447 set_default(){
 448     for opt; do
 449         eval : \${$opt:=\$${opt}_default}
 450     done
 451 }
 452
 453 is_in(){
 454     value=$1
 455     shift
 456     for var in $*; do
 457         [ $var = $value ] && return 0
 458     done
 459     return 1
 460 }
 461
 462 check_deps(){
 463     for cfg; do
 464         cfg="${cfg#!}"
 465         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 466         disabled ${cfg}_checking && continue
 467         enable ${cfg}_checking
 468
 469         eval dep_all="\$${cfg}_deps"
 470         eval dep_any="\$${cfg}_deps_any"
 471         eval dep_sel="\$${cfg}_select"
 472         eval dep_sgs="\$${cfg}_suggest"
 473         eval dep_ifa="\$${cfg}_if"
 474         eval dep_ifn="\$${cfg}_if_any"
 475
 476         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 477         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 478         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 479
 480         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 481         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 482         enabled_all  $dep_all || disable $cfg
 483         enabled_any  $dep_any || disable $cfg
 484         disabled_any $dep_sel && disable $cfg
 485
 486         if enabled $cfg; then
 487             eval dep_extralibs="\$${cfg}_extralibs"
 488             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 489             enable_deep $dep_sel
 490             enable_deep_weak $dep_sgs
 491         fi
 492
 493         disable ${cfg}_checking
 494     done
 495 }
 496
 497 print_config(){
 498     pfx=$1
 499     header=$2
 500     makefile=$3
 501     shift 3
 502     for cfg; do
 503         ucname="$(toupper $cfg)"
 504         if enabled $cfg; then
 505             echo "#define ${pfx}${ucname} 1" >> $header
 506             echo "${pfx}${ucname}=yes" >> $makefile
 507         else
 508             echo "#define ${pfx}${ucname} 0" >> $header
 509             echo "!${pfx}${ucname}=yes" >> $makefile
 510         fi
 511     done
 512 }
 513
 514 print_enabled(){
 515     test "$1" = -n && end=" " && shift || end="\n"
 516     suf=$1
 517     shift
 518     for v; do
 519         enabled $v && printf "%s$end" ${v%$suf};
 520     done
 521 }
 522
 523 append(){
 524     var=$1
 525     shift
 526     eval "$var=\"\$$var $*\""
 527 }
 528
 529 prepend(){
 530     var=$1
 531     shift
 532     eval "$var=\"$* \$$var\""
 533 }
 534
 535 add_cppflags(){
 536     append CPPFLAGS $($filter_cppflags "$@")
 537 }
 538
 539 add_cflags(){
 540     append CFLAGS $($filter_cflags "$@")
 541 }
 542
 543 add_asflags(){
 544     append ASFLAGS $($filter_asflags "$@")
 545 }
 546
 547 add_ldflags(){
 548     append LDFLAGS "$@"
 549 }
 550
 551 add_extralibs(){
 552     prepend extralibs "$@"
 553 }
 554
 555 check_cmd(){
 556     log "$@"
 557     "$@" >> $logfile 2>&1
 558 }
 559
 560 check_cc(){
 561     log check_cc "$@"
 562     cat > $TMPC
 563     log_file $TMPC
 564     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 565 }
 566
 567 check_cpp(){
 568     log check_cpp "$@"
 569     cat > $TMPC
 570     log_file $TMPC
 571     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 572 }
 573
 574 check_as(){
 575     log check_as "$@"
 576     cat > $TMPC
 577     log_file $TMPC
 578     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 579 }
 580
 581 check_asm(){
 582     log check_asm "$@"
 583     name="$1"
 584     code="$2"
 585     shift 2
 586     disable $name
 587     check_as "$@" <<EOF && enable $name
 588 void foo(void){ __asm__ volatile($code); }
 589 EOF
 590 }
 591
 592 check_yasm(){
 593     log check_yasm "$@"
 594     echo "$1" > $TMPS
 595     log_file $TMPS
 596     shift 1
 597     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 598 }
 599
 600 check_ld(){
 601     log check_ld "$@"
 602     flags=''
 603     libs=''
 604     for f; do
 605         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 606     done
 607     check_cc $($filter_cflags $flags) || return
 608     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 609 }
 610
 611 check_cppflags(){
 612     log check_cppflags "$@"
 613     set -- $($filter_cppflags "$@")
 614     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 615 int x;
 616 EOF
 617 }
 618
 619 check_cflags(){
 620     log check_cflags "$@"
 621     set -- $($filter_cflags "$@")
 622     check_cc "$@" <<EOF && append CFLAGS "$@"
 623 int x;
 624 EOF
 625 }
 626
 627 test_ldflags(){
 628     log test_ldflags "$@"
 629     check_ld "$@" <<EOF
 630 int main(void){ return 0; }
 631 EOF
 632 }
 633
 634 check_ldflags(){
 635     log check_ldflags "$@"
 636     test_ldflags "$@" && add_ldflags "$@"
 637 }
 638
 639 check_header(){
 640     log check_header "$@"
 641     header=$1
 642     shift
 643     disable_safe $header
 644     check_cpp "$@" <<EOF && enable_safe $header
 645 #include <$header>
 646 int x;
 647 EOF
 648 }
 649
 650 check_func(){
 651     log check_func "$@"
 652     func=$1
 653     shift
 654     disable $func
 655     check_ld "$@" <<EOF && enable $func
 656 extern int $func();
 657 int main(void){ $func(); }
 658 EOF
 659 }
 660
 661 check_mathfunc(){
 662     log check_mathfunc "$@"
 663     func=$1
 664     shift
 665     disable $func
 666     check_ld "$@" <<EOF && enable $func
 667 #include <math.h>
 668 float foo(float f) { return $func(f); }
 669 int main(void){ return 0; }
 670 EOF
 671 }
 672
 673 check_func_headers(){
 674     log check_func_headers "$@"
 675     headers=$1
 676     func=$2
 677     shift 2
 678     disable $func
 679     incs=""
 680     for hdr in $headers; do
 681         incs="$incs
 682 #include <$hdr>"
 683     done
 684     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 685 $incs
 686 int main(int argc, char **argv){
 687     return (long) $func;
 688 }
 689 EOF
 690 }
 691
 692 check_cpp_condition(){
 693     log check_cpp_condition "$@"
 694     header=$1
 695     condition=$2
 696     shift 2
 697     check_cpp $($filter_cppflags "$@") <<EOF
 698 #include <$header>
 699 #if !($condition)
 700 #error "unsatisfied condition: $condition"
 701 #endif
 702 EOF
 703 }
 704
 705 check_lib(){
 706     log check_lib "$@"
 707     header="$1"
 708     func="$2"
 709     shift 2
 710     check_header $header && check_func $func "$@" && add_extralibs "$@"
 711 }
 712
 713 check_lib2(){
 714     log check_lib2 "$@"
 715     headers="$1"
 716     func="$2"
 717     shift 2
 718     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 719 }
 720
 721 check_exec(){
 722     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 723 }
 724
 725 check_exec_crash(){
 726     code=$(cat)
 727
 728     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 729     # are safe but may not be available everywhere.  Thus we use
 730     # raise(SIGTERM) instead.  The check is run in a subshell so we
 731     # can redirect the "Terminated" message from the shell.  SIGBUS
 732     # is not defined by standard C so it is used conditionally.
 733
 734     (check_exec "$@") >> $logfile 2>&1 <<EOF
 735 #include <signal.h>
 736 static void sighandler(int sig){
 737     raise(SIGTERM);
 738 }
 739 int main(void){
 740     signal(SIGILL, sighandler);
 741     signal(SIGFPE, sighandler);
 742     signal(SIGSEGV, sighandler);
 743 #ifdef SIGBUS
 744     signal(SIGBUS, sighandler);
 745 #endif
 746     { $code }
 747 }
 748 EOF
 749 }
 750
 751 check_type(){
 752     log check_type "$@"
 753     headers=$1
 754     type=$2
 755     shift 2
 756     disable_safe "$type"
 757     incs=""
 758     for hdr in $headers; do
 759         incs="$incs
 760 #include <$hdr>"
 761     done
 762     check_cc "$@" <<EOF && enable_safe "$type"
 763 $incs
 764 $type v;
 765 EOF
 766 }
 767
 768 check_struct(){
 769     log check_type "$@"
 770     headers=$1
 771     struct=$2
 772     member=$3
 773     shift 3
 774     disable_safe "${struct}_${member}"
 775     incs=""
 776     for hdr in $headers; do
 777         incs="$incs
 778 #include <$hdr>"
 779     done
 780     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 781 $incs
 782 const void *p = &(($struct *)0)->$member;
 783 EOF
 784 }
 785
 786 require(){
 787     name="$1"
 788     header="$2"
 789     func="$3"
 790     shift 3
 791     check_lib $header $func "$@" || die "ERROR: $name not found"
 792 }
 793
 794 require2(){
 795     name="$1"
 796     headers="$2"
 797     func="$3"
 798     shift 3
 799     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 800 }
 801
 802 check_host_cc(){
 803     log check_host_cc "$@"
 804     cat > $TMPC
 805     log_file $TMPC
 806     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 807 }
 808
 809 check_host_cflags(){
 810     log check_host_cflags "$@"
 811     check_host_cc "$@" <<EOF && append host_cflags "$@"
 812 int x;
 813 EOF
 814 }
 815
 816 apply(){
 817     file=$1
 818     shift
 819     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 820 }
 821
 822 cp_if_changed(){
 823     cmp -s "$1" "$2" &&
 824         echo "$2 is unchanged" ||
 825         cp -f "$1" "$2"
 826 }
 827
 828 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 829 # system-dependent things.
 830
 831 COMPONENT_LIST="
 832     bsfs
 833     decoders
 834     demuxers
 835     encoders
 836     filters
 837     hwaccels
 838     indevs
 839     muxers
 840     outdevs
 841     parsers
 842     protocols
 843 "
 844
 845 CONFIG_LIST="
 846     $COMPONENT_LIST
 847     aandct
 848     avcodec
 849     avcore
 850     avdevice
 851     avfilter
 852     avformat
 853     avisynth
 854     bzlib
 855     dct
 856     doc
 857     dwt
 858     dxva2
 859     fastdiv
 860     ffmpeg
 861     ffplay
 862     ffprobe
 863     ffserver
 864     fft
 865     golomb
 866     gpl
 867     gray
 868     h264dsp
 869     hardcoded_tables
 870     libdc1394
 871     libdirac
 872     libfaac
 873     libgsm
 874     libmp3lame
 875     libnut
 876     libopencore_amrnb
 877     libopencore_amrwb
 878     libopenjpeg
 879     librtmp
 880     libschroedinger
 881     libspeex
 882     libtheora
 883     libvorbis
 884     libvpx
 885     libx264
 886     libxavs
 887     libxvid
 888     lpc
 889     lsp
 890     mdct
 891     memalign_hack
 892     mlib
 893     mpegaudio_hp
 894     network
 895     nonfree
 896     pic
 897     postproc
 898     rdft
 899     runtime_cpudetect
 900     shared
 901     small
 902     sram
 903     static
 904     swscale
 905     swscale_alpha
 906     vaapi
 907     vdpau
 908     version3
 909     x11grab
 910     zlib
 911 "
 912
 913 THREADS_LIST='
 914     pthreads
 915     w32threads
 916 '
 917
 918 ARCH_LIST='
 919     alpha
 920     arm
 921     avr32
 922     avr32_ap
 923     avr32_uc
 924     bfin
 925     ia64
 926     m68k
 927     mips
 928     mips64
 929     parisc
 930     ppc
 931     ppc64
 932     s390
 933     sh4
 934     sparc
 935     sparc64
 936     tomi
 937     x86
 938     x86_32
 939     x86_64
 940 '
 941
 942 ARCH_EXT_LIST='
 943     altivec
 944     amd3dnow
 945     amd3dnowext
 946     armv5te
 947     armv6
 948     armv6t2
 949     armvfp
 950     iwmmxt
 951     mmi
 952     mmx
 953     mmx2
 954     neon
 955     ppc4xx
 956     sse
 957     ssse3
 958     vis
 959 '
 960
 961 HAVE_LIST_PUB='
 962     bigendian
 963     fast_unaligned
 964 '
 965
 966 HAVE_LIST="
 967     $ARCH_EXT_LIST
 968     $HAVE_LIST_PUB
 969     $THREADS_LIST
 970     alsa_asoundlib_h
 971     altivec_h
 972     arpa_inet_h
 973     attribute_may_alias
 974     attribute_packed
 975     bswap
 976     closesocket
 977     cmov
 978     conio_h
 979     dcbzl
 980     dev_bktr_ioctl_bt848_h
 981     dev_bktr_ioctl_meteor_h
 982     dev_ic_bt8xx_h
 983     dev_video_meteor_ioctl_meteor_h
 984     dev_video_bktr_ioctl_bt848_h
 985     dlfcn_h
 986     dlopen
 987     dos_paths
 988     ebp_available
 989     ebx_available
 990     exp2
 991     exp2f
 992     fast_64bit
 993     fast_clz
 994     fast_cmov
 995     fcntl
 996     fork
 997     getaddrinfo
 998     gethrtime
 999     GetProcessMemoryInfo
1000     GetProcessTimes
1001     getrusage
1002     gnu_as
1003     struct_rusage_ru_maxrss
1004     ibm_asm
1005     inet_aton
1006     inline_asm
1007     isatty
1008     ldbrx
1009     libdc1394_1
1010     libdc1394_2
1011     llrint
1012     llrintf
1013     local_aligned_16
1014     local_aligned_8
1015     log2
1016     log2f
1017     loongson
1018     lrint
1019     lrintf
1020     lzo1x_999_compress
1021     machine_ioctl_bt848_h
1022     machine_ioctl_meteor_h
1023     malloc_h
1024     memalign
1025     mkstemp
1026     pld
1027     posix_memalign
1028     round
1029     roundf
1030     sdl
1031     sdl_video_size
1032     setmode
1033     socklen_t
1034     soundcard_h
1035     poll_h
1036     setrlimit
1037     strerror_r
1038     struct_addrinfo
1039     struct_ipv6_mreq
1040     struct_sockaddr_in6
1041     struct_sockaddr_sa_len
1042     struct_sockaddr_storage
1043     symver
1044     symver_gnu_asm
1045     symver_asm_label
1046     sys_mman_h
1047     sys_resource_h
1048     sys_select_h
1049     sys_soundcard_h
1050     sys_videoio_h
1051     ten_operands
1052     termios_h
1053     threads
1054     truncf
1055     vfp_args
1056     VirtualAlloc
1057     winsock2_h
1058     xform_asm
1059     yasm
1060 "
1061
1062 # options emitted with CONFIG_ prefix but not available on command line
1063 CONFIG_EXTRA="
1064     avutil
1065     gplv3
1066     lgplv3
1067 "
1068
1069 CMDLINE_SELECT="
1070     $ARCH_EXT_LIST
1071     $CONFIG_LIST
1072     $THREADS_LIST
1073     asm
1074     cross_compile
1075     debug
1076     extra_warnings
1077     logging
1078     optimizations
1079     stripping
1080     yasm
1081 "
1082
1083 PATHS_LIST='
1084     bindir
1085     datadir
1086     incdir
1087     libdir
1088     mandir
1089     prefix
1090     shlibdir
1091 '
1092
1093 CMDLINE_SET="
1094     $PATHS_LIST
1095     ar
1096     arch
1097     as
1098     build_suffix
1099     cc
1100     cpu
1101     cross_prefix
1102     dep_cc
1103     extra_version
1104     host_cc
1105     host_cflags
1106     host_ldflags
1107     host_libs
1108     host_os
1109     ld
1110     logfile
1111     malloc_prefix
1112     nm
1113     samples
1114     source_path
1115     strip
1116     sysinclude
1117     sysroot
1118     target_exec
1119     target_os
1120     target_path
1121 "
1122
1123 CMDLINE_APPEND="
1124     extra_cflags
1125 "
1126
1127 # code dependency declarations
1128
1129 # architecture extensions
1130
1131 armv5te_deps="arm"
1132 armv6_deps="arm"
1133 armv6t2_deps="arm"
1134 armvfp_deps="arm"
1135 iwmmxt_deps="arm"
1136 neon_deps="arm"
1137
1138 mmi_deps="mips"
1139
1140 altivec_deps="ppc"
1141 ppc4xx_deps="ppc"
1142
1143 vis_deps="sparc"
1144
1145 x86_64_suggest="cmov fast_cmov"
1146 amd3dnow_deps="mmx"
1147 amd3dnowext_deps="amd3dnow"
1148 mmx_deps="x86"
1149 mmx2_deps="mmx"
1150 sse_deps="mmx"
1151 ssse3_deps="sse"
1152
1153 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1154 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1155 fast_unaligned_if_any="armv6 ppc x86"
1156
1157 need_memalign="altivec neon sse"
1158 inline_asm_deps="!tms470"
1159
1160 symver_if_any="symver_asm_label symver_gnu_asm"
1161
1162 # subsystems
1163 dct_select="rdft"
1164 mdct_select="fft"
1165 rdft_select="fft"
1166
1167 # decoders / encoders / hardware accelerators
1168 aac_decoder_select="mdct rdft"
1169 aac_encoder_select="mdct"
1170 ac3_decoder_select="mdct ac3_parser"
1171 alac_encoder_select="lpc"
1172 amrnb_decoder_select="lsp"
1173 atrac1_decoder_select="mdct"
1174 atrac3_decoder_select="mdct"
1175 binkaudio_dct_decoder_select="mdct rdft dct"
1176 binkaudio_rdft_decoder_select="mdct rdft"
1177 cavs_decoder_select="golomb"
1178 cook_decoder_select="mdct"
1179 cscd_decoder_suggest="zlib"
1180 dca_decoder_select="mdct"
1181 dnxhd_encoder_select="aandct"
1182 dxa_decoder_select="zlib"
1183 eac3_decoder_select="ac3_decoder"
1184 eamad_decoder_select="aandct"
1185 eatgq_decoder_select="aandct"
1186 eatqi_decoder_select="aandct"
1187 ffv1_decoder_select="golomb"
1188 flac_decoder_select="golomb"
1189 flac_encoder_select="golomb lpc"
1190 flashsv_decoder_select="zlib"
1191 flashsv_encoder_select="zlib"
1192 flv_decoder_select="h263_decoder"
1193 flv_encoder_select="h263_encoder"
1194 h261_encoder_select="aandct"
1195 h263_decoder_select="h263_parser"
1196 h263_encoder_select="aandct"
1197 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1198 h263i_decoder_select="h263_decoder"
1199 h263p_encoder_select="h263_encoder"
1200 h264_decoder_select="golomb h264dsp"
1201 h264_dxva2_hwaccel_deps="dxva2api_h"
1202 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1203 h264_vaapi_hwaccel_select="vaapi"
1204 h264_vdpau_decoder_select="vdpau h264_decoder"
1205 imc_decoder_select="fft mdct"
1206 jpegls_decoder_select="golomb"
1207 jpegls_encoder_select="golomb"
1208 ljpeg_encoder_select="aandct"
1209 loco_decoder_select="golomb"
1210 mjpeg_encoder_select="aandct"
1211 mlp_decoder_select="mlp_parser"
1212 mp1float_decoder_select="dct"
1213 mp2float_decoder_select="dct"
1214 mp3adufloat_decoder_select="dct"
1215 mp3float_decoder_select="dct"
1216 mp3on4float_decoder_select="dct"
1217 mpeg1video_encoder_select="aandct"
1218 mpeg2video_encoder_select="aandct"
1219 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1220 mpeg4_encoder_select="h263_encoder"
1221 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1222 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1223 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1224 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1225 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1226 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1227 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1228 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1229 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1230 msmpeg4v1_decoder_select="h263_decoder"
1231 msmpeg4v1_encoder_select="h263_encoder"
1232 msmpeg4v2_decoder_select="h263_decoder"
1233 msmpeg4v2_encoder_select="h263_encoder"
1234 msmpeg4v3_decoder_select="h263_decoder"
1235 msmpeg4v3_encoder_select="h263_encoder"
1236 nellymoser_decoder_select="mdct"
1237 nellymoser_encoder_select="mdct"
1238 png_decoder_select="zlib"
1239 png_encoder_select="zlib"
1240 qcelp_decoder_select="lsp"
1241 qdm2_decoder_select="mdct rdft"
1242 ra_144_encoder_select="lpc"
1243 rv10_decoder_select="h263_decoder"
1244 rv10_encoder_select="h263_encoder"
1245 rv20_decoder_select="h263_decoder"
1246 rv20_encoder_select="h263_encoder"
1247 rv30_decoder_select="golomb h264dsp"
1248 rv40_decoder_select="golomb h264dsp"
1249 shorten_decoder_select="golomb"
1250 sipr_decoder_select="lsp"
1251 snow_decoder_select="dwt"
1252 snow_encoder_select="aandct dwt"
1253 sonic_decoder_select="golomb"
1254 sonic_encoder_select="golomb"
1255 sonic_ls_encoder_select="golomb"
1256 svq1_encoder_select="aandct"
1257 svq3_decoder_select="golomb h264dsp"
1258 svq3_decoder_suggest="zlib"
1259 theora_decoder_select="vp3_decoder"
1260 tiff_decoder_suggest="zlib"
1261 tiff_encoder_suggest="zlib"
1262 truehd_decoder_select="mlp_decoder"
1263 tscc_decoder_select="zlib"
1264 twinvq_decoder_select="mdct lsp"
1265 vc1_decoder_select="h263_decoder"
1266 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1267 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1268 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1269 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1270 vorbis_decoder_select="mdct"
1271 vorbis_encoder_select="mdct"
1272 vp6a_decoder_select="vp6_decoder"
1273 vp6f_decoder_select="vp6_decoder"
1274 vp8_decoder_select="h264dsp"
1275 wmapro_decoder_select="mdct"
1276 wmav1_decoder_select="mdct"
1277 wmav1_encoder_select="mdct"
1278 wmav2_decoder_select="mdct"
1279 wmav2_encoder_select="mdct"
1280 wmavoice_decoder_select="lsp rdft dct mdct"
1281 wmv1_decoder_select="h263_decoder"
1282 wmv1_encoder_select="h263_encoder"
1283 wmv2_decoder_select="h263_decoder"
1284 wmv2_encoder_select="h263_encoder"
1285 wmv3_decoder_select="vc1_decoder"
1286 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1287 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1288 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1289 zlib_decoder_select="zlib"
1290 zlib_encoder_select="zlib"
1291 zmbv_decoder_select="zlib"
1292 zmbv_encoder_select="zlib"
1293
1294 vaapi_deps="va_va_h"
1295 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1296
1297 # parsers
1298 h264_parser_select="golomb h264dsp"
1299
1300 # external libraries
1301 libdirac_decoder_deps="libdirac !libschroedinger"
1302 libdirac_encoder_deps="libdirac"
1303 libfaac_encoder_deps="libfaac"
1304 libgsm_decoder_deps="libgsm"
1305 libgsm_encoder_deps="libgsm"
1306 libgsm_ms_decoder_deps="libgsm"
1307 libgsm_ms_encoder_deps="libgsm"
1308 libmp3lame_encoder_deps="libmp3lame"
1309 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1310 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1311 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1312 libopenjpeg_decoder_deps="libopenjpeg"
1313 libschroedinger_decoder_deps="libschroedinger"
1314 libschroedinger_encoder_deps="libschroedinger"
1315 libspeex_decoder_deps="libspeex"
1316 libtheora_encoder_deps="libtheora"
1317 libvorbis_encoder_deps="libvorbis"
1318 libvpx_decoder_deps="libvpx"
1319 libvpx_encoder_deps="libvpx"
1320 libx264_encoder_deps="libx264"
1321 libxavs_encoder_deps="libxavs"
1322 libxvid_encoder_deps="libxvid"
1323
1324 # demuxers / muxers
1325 ac3_demuxer_deps="ac3_parser"
1326 asf_stream_muxer_select="asf_muxer"
1327 avisynth_demuxer_deps="avisynth"
1328 dirac_demuxer_deps="dirac_parser"
1329 eac3_demuxer_select="ac3_parser"
1330 ipod_muxer_select="mov_muxer"
1331 libnut_demuxer_deps="libnut"
1332 libnut_muxer_deps="libnut"
1333 matroska_audio_muxer_select="matroska_muxer"
1334 matroska_demuxer_suggest="zlib bzlib"
1335 mov_demuxer_suggest="zlib"
1336 mp3_demuxer_deps="mpegaudio_parser"
1337 mp4_muxer_select="mov_muxer"
1338 mpegtsraw_demuxer_select="mpegts_demuxer"
1339 mxf_d10_muxer_select="mxf_muxer"
1340 ogg_demuxer_select="golomb"
1341 psp_muxer_select="mov_muxer"
1342 rtsp_demuxer_deps="sdp_demuxer"
1343 rtsp_muxer_deps="sdp_demuxer"
1344 rtsp_muxer_select="rtp_muxer"
1345 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1346 sdp_demuxer_select="asf_demuxer rm_demuxer"
1347 spdif_muxer_select="aac_parser"
1348 tg2_muxer_select="mov_muxer"
1349 tgp_muxer_select="mov_muxer"
1350 w64_demuxer_deps="wav_demuxer"
1351
1352 # indevs / outdevs
1353 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1354 alsa_indev_extralibs="-lasound"
1355 alsa_outdev_deps="alsa_asoundlib_h"
1356 alsa_outdev_extralibs="-lasound"
1357 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1358 dv1394_indev_deps="dv1394 dv_demuxer"
1359 jack_indev_deps="jack_jack_h"
1360 jack_indev_extralibs="-ljack"
1361 libdc1394_indev_deps="libdc1394"
1362 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1363 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1364 v4l_indev_deps="linux_videodev_h"
1365 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1366 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1367 vfwcap_indev_extralibs="-lavicap32"
1368 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1369 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1370
1371 # protocols
1372 gopher_protocol_deps="network"
1373 http_protocol_deps="network"
1374 http_protocol_select="tcp_protocol"
1375 mmst_protocol_deps="network"
1376 rtmp_protocol_select="tcp_protocol"
1377 rtp_protocol_select="udp_protocol"
1378 tcp_protocol_deps="network"
1379 udp_protocol_deps="network"
1380
1381 # libraries
1382 avdevice_deps="avcodec avformat"
1383 avformat_deps="avcodec"
1384
1385 # programs
1386 ffmpeg_deps="avcodec avformat swscale"
1387 ffmpeg_select="buffer_filter"
1388 ffplay_deps="avcodec avformat swscale sdl"
1389 ffplay_select="rdft"
1390 ffprobe_deps="avcodec avformat"
1391 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1392 ffserver_extralibs='$ldl'
1393
1394 doc_deps="texi2html"
1395
1396 # tests
1397
1398 test_deps(){
1399     suf1=$1
1400     suf2=$2
1401     shift 2
1402     for v; do
1403         dep=${v%=*}
1404         tests=${v#*=}
1405         for name in ${tests}; do
1406             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1407         done
1408     done
1409 }
1410
1411 set_ne_test_deps(){
1412     eval ${1}_be_test_deps="bigendian"
1413     eval ${1}_le_test_deps="!bigendian"
1414 }
1415
1416 test_deps _encoder _decoder                                             \
1417     ac3                                                                 \
1418     adpcm_g726=g726                                                     \
1419     adpcm_ima_qt                                                        \
1420     adpcm_ima_wav                                                       \
1421     adpcm_ms                                                            \
1422     adpcm_swf                                                           \
1423     adpcm_yamaha=adpcm_yam                                              \
1424     alac                                                                \
1425     asv1                                                                \
1426     asv2                                                                \
1427     bmp                                                                 \
1428     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1429     dvvideo="dv dv50"                                                   \
1430     ffv1                                                                \
1431     flac                                                                \
1432     flashsv                                                             \
1433     flv                                                                 \
1434     gif                                                                 \
1435     h261                                                                \
1436     h263="h263 h263p"                                                   \
1437     huffyuv                                                             \
1438     jpegls                                                              \
1439     mjpeg="jpg mjpeg ljpeg"                                             \
1440     mp2                                                                 \
1441     mpeg1video="mpeg mpeg1b"                                            \
1442     mpeg2video="mpeg2 mpeg2thread"                                      \
1443     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1444     msmpeg4v3=msmpeg4                                                   \
1445     msmpeg4v2                                                           \
1446     pbm=pbmpipe                                                         \
1447     pcx                                                                 \
1448     pgm="pgm pgmpipe"                                                   \
1449     ppm="ppm ppmpipe"                                                   \
1450     rawvideo="rgb yuv"                                                  \
1451     roq                                                                 \
1452     rv10                                                                \
1453     rv20                                                                \
1454     sgi                                                                 \
1455     snow="snow snowll"                                                  \
1456     svq1                                                                \
1457     targa=tga                                                           \
1458     tiff                                                                \
1459     wmav1                                                               \
1460     wmav2                                                               \
1461     wmv1                                                                \
1462     wmv2                                                                \
1463
1464 test_deps _muxer _demuxer                                               \
1465     aiff                                                                \
1466     pcm_alaw=alaw                                                       \
1467     asf                                                                 \
1468     au                                                                  \
1469     avi                                                                 \
1470     dv=dv_fmt                                                           \
1471     ffm                                                                 \
1472     flv=flv_fmt                                                         \
1473     gxf                                                                 \
1474     matroska=mkv                                                        \
1475     mmf                                                                 \
1476     mov                                                                 \
1477     pcm_mulaw=mulaw                                                     \
1478     mxf                                                                 \
1479     nut                                                                 \
1480     ogg                                                                 \
1481     rawvideo=pixfmt                                                     \
1482     rm                                                                  \
1483     swf                                                                 \
1484     mpegts=ts                                                           \
1485     voc                                                                 \
1486     wav                                                                 \
1487     yuv4mpegpipe=yuv4mpeg                                               \
1488
1489 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1490
1491 set_ne_test_deps pixdesc
1492 set_ne_test_deps pixfmts_crop
1493 set_ne_test_deps pixfmts_null
1494 set_ne_test_deps pixfmts_pad
1495 set_ne_test_deps pixfmts_scale
1496 set_ne_test_deps pixfmts_vflip
1497
1498 # default parameters
1499
1500 logfile="config.log"
1501
1502 # installation paths
1503 prefix_default="/usr/local"
1504 bindir_default='${prefix}/bin'
1505 datadir_default='${prefix}/share/ffmpeg'
1506 incdir_default='${prefix}/include'
1507 libdir_default='${prefix}/lib'
1508 mandir_default='${prefix}/share/man'
1509 shlibdir_default="$libdir_default"
1510
1511 # toolchain
1512 ar_default="ar"
1513 cc_default="gcc"
1514 cc_version=\"unknown\"
1515 host_cc_default="gcc"
1516 ln_s="ln -sf"
1517 nm_default="nm"
1518 objformat="elf"
1519 ranlib="ranlib"
1520 strip_default="strip"
1521 yasmexe="yasm"
1522 nogas=":"
1523
1524 nm_opts='-g'
1525
1526 # machine
1527 arch_default=$(uname -m)
1528 cpu="generic"
1529
1530 # OS
1531 target_os_default=$(tolower $(uname -s))
1532 host_os=$target_os_default
1533
1534 # configurable options
1535 enable avcodec
1536 enable avcore
1537 enable avdevice
1538 enable avfilter
1539 enable avformat
1540 enable avutil
1541 enable asm
1542 enable debug
1543 enable doc
1544 enable fastdiv
1545 enable ffmpeg
1546 enable ffplay
1547 enable ffprobe
1548 enable ffserver
1549 enable mpegaudio_hp
1550 enable network
1551 enable optimizations
1552 enable protocols
1553 enable static
1554 enable stripping
1555 enable swscale
1556 enable swscale_alpha
1557
1558 # build settings
1559 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1560 FFSERVERLDFLAGS=-Wl,-E
1561 LIBPREF="lib"
1562 LIBSUF=".a"
1563 FULLNAME='$(NAME)$(BUILDSUF)'
1564 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1565 SLIBPREF="lib"
1566 SLIBSUF=".so"
1567 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1568 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1569 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1570 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1571
1572 CC_O='-o $@'
1573
1574 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1575 host_libs='-lm'
1576
1577 target_path='$(CURDIR)'
1578
1579 # since the object filename is not given with the -MM flag, the compiler
1580 # is only able to print the basename, and we must add the path ourselves
1581 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1582 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1583
1584 # find source path
1585 source_path="$(dirname "$0")"
1586 enable source_path_used
1587 if test -f configure; then
1588     source_path="$(pwd)"
1589     disable source_path_used
1590 else
1591     source_path="$(cd "$source_path"; pwd)"
1592     echo "$source_path" | grep -q '[[:blank:]]' &&
1593         die "Out of tree builds are impossible with whitespace in source path."
1594     test -e "$source_path/config.h" &&
1595         die "Out of tree builds are impossible with config.h in source dir."
1596 fi
1597
1598 for v in "$@"; do
1599     r=${v#*=}
1600     l=${v%"$r"}
1601     r=$(sh_quote "$r")
1602     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1603 done
1604
1605 find_things(){
1606     thing=$1
1607     pattern=$2
1608     file=$source_path/$3
1609     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1610 }
1611
1612 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1613 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1614 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1615 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1616 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1617 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1618 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1619 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1620 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1621 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1622 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1623
1624 find_tests(){
1625     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1626 }
1627
1628 ACODEC_TESTS=$(find_tests acodec)
1629 VCODEC_TESTS=$(find_tests vsynth1)
1630 LAVF_TESTS=$(find_tests lavf)
1631 LAVFI_TESTS=$(find_tests lavfi)
1632 SEEK_TESTS=$(find_tests seek seek_)
1633
1634 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1635
1636 for n in $COMPONENT_LIST; do
1637     v=$(toupper ${n%s})_LIST
1638     eval enable \$$v
1639     eval ${n}_if_any="\$$v"
1640 done
1641
1642 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1643
1644 die_unknown(){
1645     echo "Unknown option \"$1\"."
1646     echo "See $0 --help for available options."
1647     exit 1
1648 }
1649
1650 show_list() {
1651     suffix=_$1
1652     shift
1653     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1654     exit 0
1655 }
1656
1657 for opt do
1658     optval="${opt#*=}"
1659     case "$opt" in
1660     --extra-ldflags=*) add_ldflags $optval
1661     ;;
1662     --extra-libs=*) add_extralibs $optval
1663     ;;
1664     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1665     ;;
1666     --enable-debug=*) debuglevel="$optval"
1667     ;;
1668     --disable-everything)
1669     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1670     ;;
1671     --enable-*=*|--disable-*=*)
1672     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1673     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1674     eval list=\$$(toupper $thing)_LIST
1675     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1676     $action $(filter "$name" $list)
1677     ;;
1678     --enable-?*|--disable-?*)
1679     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1680     if is_in $option $COMPONENT_LIST; then
1681         test $action = disable && action=unset
1682         eval $action \$$(toupper ${option%s})_LIST
1683     elif is_in $option $CMDLINE_SELECT; then
1684         $action $option
1685     else
1686         die_unknown $opt
1687     fi
1688     ;;
1689     --list-*)
1690         NAME="${opt#--list-}"
1691         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1692         NAME=${NAME%s}
1693         eval show_list $NAME \$$(toupper $NAME)_LIST
1694     ;;
1695     --help|-h) show_help
1696     ;;
1697     *)
1698     optname="${opt%%=*}"
1699     optname="${optname#--}"
1700     optname=$(echo "$optname" | sed 's/-/_/g')
1701     if is_in $optname $CMDLINE_SET; then
1702         eval $optname='$optval'
1703     elif is_in $optname $CMDLINE_APPEND; then
1704         append $optname "$optval"
1705     else
1706          die_unknown $opt
1707     fi
1708     ;;
1709     esac
1710 done
1711
1712 disabled logging && logfile=/dev/null
1713
1714 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1715 set >> $logfile
1716
1717 test -n "$cross_prefix" && enable cross_compile
1718
1719 if enabled cross_compile; then
1720     test -n "$arch" && test -n "$target_os" ||
1721         die "Must specify target arch and OS when cross-compiling"
1722 fi
1723
1724 set_default arch target_os
1725
1726 ar_default="${cross_prefix}${ar_default}"
1727 cc_default="${cross_prefix}${cc_default}"
1728 nm_default="${cross_prefix}${nm_default}"
1729 ranlib="${cross_prefix}${ranlib}"
1730 strip_default="${cross_prefix}${strip_default}"
1731
1732 sysinclude_default="${sysroot}/usr/include"
1733
1734 set_default cc nm strip sysinclude
1735 enabled cross_compile || host_cc_default=$cc
1736 set_default host_cc
1737
1738 exesuf() {
1739     case $1 in
1740         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1741     esac
1742 }
1743
1744 EXESUF=$(exesuf $target_os)
1745 HOSTEXESUF=$(exesuf $host_os)
1746
1747 # set temporary file name
1748 : ${TMPDIR:=$TEMPDIR}
1749 : ${TMPDIR:=$TMP}
1750 : ${TMPDIR:=/tmp}
1751
1752 if ! check_cmd type mktemp; then
1753     # simple replacement for missing mktemp
1754     # NOT SAFE FOR GENERAL USE
1755     mktemp(){
1756         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1757     }
1758 fi
1759
1760 tmpfile(){
1761     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1762         (set -C; exec > $tmp) 2>/dev/null ||
1763         die "Unable to create temporary file in $TMPDIR."
1764     append TMPFILES $tmp
1765     eval $1=$tmp
1766 }
1767
1768 trap 'rm -f -- $TMPFILES' EXIT
1769 trap exit HUP INT TERM
1770
1771 tmpfile TMPC  .c
1772 tmpfile TMPE  $EXESUF
1773 tmpfile TMPH  .h
1774 tmpfile TMPO  .o
1775 tmpfile TMPS  .S
1776 tmpfile TMPV  .ver
1777 tmpfile TMPSH .sh
1778
1779 unset -f mktemp
1780
1781 # make sure we can execute files in $TMPDIR
1782 cat > $TMPSH 2>> $logfile <<EOF
1783 #! /bin/sh
1784 EOF
1785 chmod +x $TMPSH >> $logfile 2>&1
1786 if ! $TMPSH >> $logfile 2>&1; then
1787     cat <<EOF
1788 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1789 variable to another directory and make sure that it is not mounted noexec.
1790 EOF
1791     die "Sanity test failed."
1792 fi
1793
1794 filter_cflags=echo
1795 filter_cppflags=echo
1796 filter_asflags=echo
1797
1798 if   $cc -v 2>&1 | grep -qi ^gcc; then
1799     cc_type=gcc
1800     cc_version=__VERSION__
1801     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1802     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1803     if ! $cc -dumpversion | grep -q '^2\.'; then
1804         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1805         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1806     fi
1807     speed_cflags='-O3'
1808     size_cflags='-Os'
1809 elif $cc --version 2>/dev/null | grep -q Intel; then
1810     cc_type=icc
1811     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1812     cc_ident=$($cc --version | head -n1)
1813     CC_DEPFLAGS='-MMD'
1814     AS_DEPFLAGS='-MMD'
1815     speed_cflags='-O3'
1816     size_cflags='-Os'
1817     noopt_cflags='-O1'
1818 elif $cc -v 2>&1 | grep -q xlc; then
1819     cc_type=xlc
1820     cc_version="AV_STRINGIFY(__IBMC__)"
1821     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1822     speed_cflags='-O5'
1823     size_cflags='-O5 -qcompact'
1824 elif $cc -V 2>/dev/null | grep -q Compaq; then
1825     cc_type=ccc
1826     cc_version="AV_STRINGIFY(__DECC_VER)"
1827     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1828     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1829     debuglevel=3
1830     add_ldflags -Wl,-z,now # calls to libots crash without this
1831     speed_cflags='-fast'
1832     size_cflags='-O1'
1833 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1834     test -d "$sysroot" || die "No valid sysroot specified."
1835     cc_type=armcc
1836     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1837     cc_ident=$($cc --vsn | head -n1)
1838     armcc_conf="$PWD/armcc.conf"
1839     $cc --arm_linux_configure                 \
1840         --arm_linux_config_file="$armcc_conf" \
1841         --configure_sysroot="$sysroot"        \
1842         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1843         die "Error creating armcc configuration file."
1844     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1845     as_default="${cross_prefix}gcc"
1846     CC_DEPFLAGS='-MMD'
1847     AS_DEPFLAGS='-MMD'
1848     speed_cflags='-O3'
1849     size_cflags='-Os'
1850 elif $cc -version 2>/dev/null | grep -q TMS470; then
1851     cc_type=tms470
1852     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1853     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1854     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1855     CC_O='-fr=$(@D)'
1856     as_default="${cross_prefix}gcc"
1857     ld_default="${cross_prefix}gcc"
1858     TMPO=$(basename $TMPC .c).o
1859     append TMPFILES $TMPO
1860     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1861     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1862     AS_DEPFLAGS='-MMD'
1863     speed_cflags='-O3 -mf=5'
1864     size_cflags='-O3 -mf=2'
1865     filter_cflags=tms470_flags
1866     tms470_flags(){
1867         for flag; do
1868             case $flag in
1869                 -march=*|-mcpu=*)
1870                     case "${flag#*=}" in
1871                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1872                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1873                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1874                         armv6*|arm11*)          echo -mv=6   ;;
1875                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1876                                                 echo -mv=5e  ;;
1877                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1878                     esac
1879                     ;;
1880                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1881                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1882                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1883                 -msoft-float)   echo --float_support=vfplib       ;;
1884                 -O[0-3]|-mf=*)  echo $flag                        ;;
1885                 -g)             echo -g -mn                       ;;
1886                 -pds=*)         echo $flag                        ;;
1887             esac
1888         done
1889     }
1890 elif $cc -v 2>&1 | grep -q clang; then
1891     cc_type=clang
1892     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1893         cc_version=__clang_version__ || cc_version=__VERSION__
1894     cc_ident=$($cc --version | head -n1)
1895     CC_DEPFLAGS='-MMD'
1896     AS_DEPFLAGS='-MMD'
1897     speed_cflags='-O3'
1898     size_cflags='-Os'
1899 elif $cc -V 2>&1 | grep -q Sun; then
1900     cc_type=suncc
1901     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1902     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1903     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1904     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1905     speed_cflags='-O5'
1906     size_cflags='-O5 -xspace'
1907     filter_cflags=suncc_flags
1908     suncc_flags(){
1909         for flag; do
1910             case $flag in
1911                 -march=*|-mcpu=*)
1912                     case "${flag#*=}" in
1913                         native)                   echo -xtarget=native       ;;
1914                         v9|niagara)               echo -xarch=sparc          ;;
1915                         ultrasparc)               echo -xarch=sparcvis       ;;
1916                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1917                         i586|pentium)             echo -xchip=pentium        ;;
1918                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1919                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1920                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1921                         pentium4*)          echo -xtarget=pentium4           ;;
1922                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1923                         *-sse3)             echo -xarch=sse3                 ;;
1924                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1925                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1926                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1927                         k8|opteron|athlon64|athlon-fx)
1928                                                   echo -xarch=sse2a          ;;
1929                         athlon*)                  echo -xarch=pentium_proa   ;;
1930                     esac
1931                     ;;
1932                 -std=c99)             echo -xc99              ;;
1933                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1934                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1935                 -W*,*)                echo $flag              ;;
1936                 -f*-*|-W*)                                    ;;
1937                 *)                    echo $flag              ;;
1938             esac
1939         done
1940     }
1941 elif $cc -v 2>&1 | grep -q PathScale; then
1942     cc_type=pathscale
1943     cc_version=__PATHSCALE__
1944     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1945     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1946     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947     speed_cflags='-O2'
1948     size_cflags='-Os'
1949 fi
1950
1951 test -n "$cc_type" && enable $cc_type ||
1952     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1953
1954 : ${as_default:=$cc}
1955 : ${dep_cc_default:=$cc}
1956 : ${ld_default:=$cc}
1957 set_default ar as dep_cc ld
1958
1959 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1960 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1961
1962 add_cflags $extra_cflags
1963 add_asflags $extra_cflags
1964
1965 if test -n "$sysroot"; then
1966     case "$cc_type" in
1967         gcc)
1968             add_cppflags --sysroot="$sysroot"
1969             add_ldflags --sysroot="$sysroot"
1970         ;;
1971         tms470)
1972             add_cppflags -I"$sysinclude"
1973             add_ldflags  --sysroot="$sysroot"
1974         ;;
1975         clang)
1976             add_cppflags -isysroot "$sysroot"
1977             add_ldflags -isysroot "$sysroot"
1978         ;;
1979     esac
1980 fi
1981
1982 if test "$cpu" = host; then
1983     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1984
1985     case "$cc_type" in
1986         gcc)
1987             check_native(){
1988                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1989                 sed -n "/$1=/{
1990                             s/.*$1=\\([^ ]*\\).*/\\1/
1991                             p
1992                             q
1993                         }" $TMPE
1994             }
1995             cpu=$(check_native -march || check_native -mcpu)
1996         ;;
1997     esac
1998
1999     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2000 fi
2001
2002 # Deal with common $arch aliases
2003 case "$arch" in
2004     arm*)
2005         arch="arm"
2006     ;;
2007     mips|mipsel|IP*)
2008         arch="mips"
2009     ;;
2010     mips64*)
2011         arch="mips"
2012         subarch="mips64"
2013     ;;
2014     parisc|hppa)
2015         arch="parisc"
2016     ;;
2017     parisc64|hppa64)
2018         arch="parisc"
2019         subarch="parisc64"
2020     ;;
2021     "Power Macintosh"|ppc|powerpc)
2022         arch="ppc"
2023     ;;
2024     ppc64|powerpc64)
2025         arch="ppc"
2026         subarch="ppc64"
2027     ;;
2028     s390|s390x)
2029         arch="s390"
2030     ;;
2031     sh4|sh)
2032         arch="sh4"
2033     ;;
2034     sun4u|sparc64)
2035         arch="sparc"
2036         subarch="sparc64"
2037     ;;
2038     i[3-6]86|i86pc|BePC|x86_64|amd64)
2039         arch="x86"
2040     ;;
2041 esac
2042
2043 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2044 enable $arch
2045
2046 # Add processor-specific flags
2047 if test "$cpu" = generic; then
2048     : do nothing
2049 elif enabled ppc; then
2050
2051     case $(tolower $cpu) in
2052         601|ppc601|powerpc601)
2053             cpuflags="-mcpu=601"
2054             disable altivec
2055         ;;
2056         603*|ppc603*|powerpc603*)
2057             cpuflags="-mcpu=603"
2058             disable altivec
2059         ;;
2060         604*|ppc604*|powerpc604*)
2061             cpuflags="-mcpu=604"
2062             disable altivec
2063         ;;
2064         g3|75*|ppc75*|powerpc75*)
2065             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2066             disable altivec
2067         ;;
2068         g4|745*|ppc745*|powerpc745*)
2069             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2070         ;;
2071         74*|ppc74*|powerpc74*)
2072             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2073         ;;
2074         g5|970|ppc970|powerpc970|power4*)
2075             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2076         ;;
2077         cell)
2078             cpuflags="-mcpu=cell"
2079             enable ldbrx
2080         ;;
2081         e500v2)
2082             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2083             disable altivec
2084         ;;
2085         e500)
2086             cpuflags="-mcpu=8540 -mhard-float"
2087             disable altivec
2088         ;;
2089     esac
2090
2091 elif enabled x86; then
2092
2093     case $cpu in
2094         i[345]86|pentium)
2095             cpuflags="-march=$cpu"
2096             disable mmx
2097         ;;
2098         # targets that do NOT support conditional mov (cmov)
2099         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2100             cpuflags="-march=$cpu"
2101             disable cmov
2102         ;;
2103         # targets that do support conditional mov (cmov)
2104         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2105             cpuflags="-march=$cpu"
2106             enable cmov
2107             enable fast_cmov
2108         ;;
2109         # targets that do support conditional mov but on which it's slow
2110         pentium4|pentium4m|prescott|nocona)
2111             cpuflags="-march=$cpu"
2112             enable cmov
2113             disable fast_cmov
2114         ;;
2115     esac
2116
2117 elif enabled sparc; then
2118
2119     case $cpu in
2120         niagara)
2121             cpuflags="-mcpu=$cpu"
2122             disable vis
2123         ;;
2124         sparc64)
2125             cpuflags="-mcpu=v9"
2126         ;;
2127     esac
2128
2129 elif enabled arm; then
2130
2131     case $cpu in
2132         armv*)
2133             cpuflags="-march=$cpu"
2134             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2135         ;;
2136         *)
2137             cpuflags="-mcpu=$cpu"
2138             case $cpu in
2139                 cortex-a*)                               subarch=armv7a  ;;
2140                 cortex-r*)                               subarch=armv7r  ;;
2141                 cortex-m*)                               subarch=armv7m  ;;
2142                 arm11*)                                  subarch=armv6   ;;
2143                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2144                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2145             esac
2146         ;;
2147     esac
2148
2149 elif enabled alpha; then
2150
2151     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2152
2153 elif enabled bfin; then
2154
2155     cpuflags="-mcpu=$cpu"
2156
2157 elif enabled mips; then
2158
2159     cpuflags="-march=$cpu"
2160
2161 elif enabled avr32; then
2162
2163     case $cpu in
2164         ap7[02]0[0-2])
2165             subarch="avr32_ap"
2166             cpuflags="-mpart=$cpu"
2167         ;;
2168         ap)
2169             subarch="avr32_ap"
2170             cpuflags="-march=$cpu"
2171         ;;
2172         uc3[ab]*)
2173             subarch="avr32_uc"
2174             cpuflags="-mcpu=$cpu"
2175         ;;
2176         uc)
2177             subarch="avr32_uc"
2178             cpuflags="-march=$cpu"
2179         ;;
2180     esac
2181
2182 fi
2183
2184 add_cflags $cpuflags
2185 add_asflags $cpuflags
2186
2187 # compiler sanity check
2188 check_exec <<EOF
2189 int main(void){ return 0; }
2190 EOF
2191 if test "$?" != 0; then
2192     echo "$cc is unable to create an executable file."
2193     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2194         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2195         echo "Only do this if you know what cross compiling means."
2196     fi
2197     die "C compiler test failed."
2198 fi
2199
2200 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2201 check_cflags -std=c99
2202 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2203 #include <stdlib.h>
2204 EOF
2205 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2206 #include <stdlib.h>
2207 EOF
2208
2209 check_host_cflags -std=c99
2210
2211 case "$arch" in
2212     alpha|ia64|mips|parisc|sparc)
2213         spic=$shared
2214     ;;
2215     x86)
2216         subarch="x86_32"
2217         check_cc <<EOF && subarch="x86_64"
2218         int test[(int)sizeof(char*) - 7];
2219 EOF
2220         if test "$subarch" = "x86_64"; then
2221             spic=$shared
2222         fi
2223     ;;
2224 esac
2225
2226 enable $subarch
2227 enabled spic && enable pic
2228
2229 # OS specific
2230 case $target_os in
2231     haiku)
2232         prefix_default="/boot/common"
2233         network_extralibs="-lnetwork"
2234         ;;
2235     sunos)
2236         FFSERVERLDFLAGS=""
2237         SHFLAGS='-shared -Wl,-h,$$(@F)'
2238         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2239         network_extralibs="-lsocket -lnsl"
2240         add_cppflags -D__EXTENSIONS__
2241         nm_opts='-P -g'
2242         ;;
2243     netbsd)
2244         oss_indev_extralibs="-lossaudio"
2245         oss_outdev_extralibs="-lossaudio"
2246         add_cppflags -D_XOPEN_SOURCE=600
2247         ;;
2248     openbsd)
2249         enable malloc_aligned
2250         # On OpenBSD 4.5. the compiler does not use PIC unless
2251         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2252         # however the generated executable will not do anything
2253         # (simply quits with exit-code 1, no crash, no output).
2254         # Thus explicitly enable PIC here.
2255         enable pic
2256         SHFLAGS='-shared'
2257         oss_indev_extralibs="-lossaudio"
2258         oss_outdev_extralibs="-lossaudio"
2259         ;;
2260     freebsd|dragonfly)
2261         enable malloc_aligned
2262         ;;
2263     bsd/os)
2264         add_extralibs -lpoll -lgnugetopt
2265         strip="strip -d"
2266         ;;
2267     darwin)
2268         enable malloc_aligned
2269         gas="gas-preprocessor.pl $cc"
2270         enabled ppc && add_asflags -force_cpusubtype_ALL
2271         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2272         strip="${strip} -x"
2273         add_ldflags -Wl,-dynamic,-search_paths_first
2274         SLIBSUF=".dylib"
2275         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2276         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2277         FFSERVERLDFLAGS=-Wl,-bind_at_load
2278         objformat="macho"
2279         enabled x86_64 && objformat="macho64"
2280         enabled_any pic shared ||
2281             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2282         ;;
2283     mingw32*)
2284         if test $target_os = "mingw32ce"; then
2285             disable network
2286         else
2287             target_os=mingw32
2288         fi
2289         LIBTARGET=i386
2290         if enabled x86_64; then
2291             enable malloc_aligned
2292             LIBTARGET=x64
2293         elif enabled arm; then
2294             LIBTARGET=arm
2295         fi
2296         shlibdir_default="$bindir_default"
2297         disable ffserver
2298         SLIBPREF=""
2299         SLIBSUF=".dll"
2300         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2301         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2302         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2303         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2304             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2305             install -d "$(LIBDIR)"; \
2306             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2307         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2308         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'
2309         objformat="win32"
2310         enable dos_paths
2311         check_cflags -fno-common
2312         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2313                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2314                 die "ERROR: MinGW runtime version must be >= 3.15."
2315         ;;
2316     cygwin*)
2317         target_os=cygwin
2318         shlibdir_default="$bindir_default"
2319         SLIBPREF="cyg"
2320         SLIBSUF=".dll"
2321         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2322         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2323         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2324         objformat="win32"
2325         enable dos_paths
2326         check_cflags -fno-common
2327         ;;
2328     *-dos|freedos|opendos)
2329         disable ffplay ffserver
2330         disable $INDEV_LIST $OUTDEV_LIST
2331         network_extralibs="-lsocket"
2332         objformat="coff"
2333         enable dos_paths
2334         ;;
2335     linux)
2336         enable dv1394
2337         ;;
2338     irix*)
2339         target_os=irix
2340         ranlib="echo ignoring ranlib"
2341         ;;
2342     os/2*)
2343         strip="lxlite"
2344         ln_s="cp -f"
2345         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2346         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2347         FFSERVERLDFLAGS=""
2348         LIBSUF="_s.a"
2349         SLIBPREF=""
2350         SLIBSUF=".dll"
2351         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2352         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2353         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2354           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2355           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2356           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2357           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2358           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2359         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2360           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2361         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2362         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2363         enable dos_paths
2364         ;;
2365     gnu/kfreebsd)
2366         ;;
2367     gnu)
2368         ;;
2369     none)
2370         ;;
2371     *)
2372         die "Unknown OS '$target_os'."
2373         ;;
2374 esac
2375
2376 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2377
2378 set_default $PATHS_LIST
2379
2380 # we need to build at least one lib type
2381 if ! enabled_any static shared; then
2382     cat <<EOF
2383 At least one library type must be built.
2384 Specify --enable-static to build the static libraries or --enable-shared to
2385 build the shared libraries as well. To only build the shared libraries specify
2386 --disable-static in addition to --enable-shared.
2387 EOF
2388     exit 1;
2389 fi
2390
2391 disabled static && LIBNAME=""
2392
2393 die_license_disabled() {
2394     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2395 }
2396
2397 die_license_disabled gpl libx264
2398 die_license_disabled gpl libxavs
2399 die_license_disabled gpl libxvid
2400 die_license_disabled gpl postproc
2401 die_license_disabled gpl x11grab
2402
2403 die_license_disabled nonfree libfaac
2404
2405 die_license_disabled version3 libopencore_amrnb
2406 die_license_disabled version3 libopencore_amrwb
2407
2408 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2409
2410 check_deps $ARCH_EXT_LIST
2411
2412 disabled optimizations || check_cflags -fomit-frame-pointer
2413
2414 enable_pic() {
2415     enable pic
2416     add_cppflags -DPIC
2417     add_cflags   -fPIC
2418     add_asflags  -fPIC
2419 }
2420
2421 enabled pic && enable_pic
2422
2423 check_cc <<EOF || die "Symbol mangling check failed."
2424 int ff_extern;
2425 EOF
2426 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2427 extern_prefix=${sym%%ff_extern*}
2428
2429 check_cc <<EOF && enable inline_asm
2430 void foo(void) { __asm__ volatile ("" ::); }
2431 EOF
2432
2433 _restrict=
2434 for restrict_keyword in restrict __restrict__ __restrict; do
2435     check_cc <<EOF && _restrict=$restrict_keyword && break
2436 void foo(char * $restrict_keyword p);
2437 EOF
2438 done
2439
2440 check_cc <<EOF && enable attribute_packed
2441 struct { int x; } __attribute__((packed)) x;
2442 EOF
2443
2444 check_cc <<EOF && enable attribute_may_alias
2445 union { int x; } __attribute__((may_alias)) x;
2446 EOF
2447
2448 check_cc <<EOF || die "endian test failed"
2449 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2450 EOF
2451 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2452
2453 if enabled alpha; then
2454
2455     check_cflags -mieee
2456
2457 elif enabled arm; then
2458
2459     check_cflags -marm
2460     nogas=die
2461
2462     check_ld <<EOF && enable vfp_args
2463 __asm__ (".eabi_attribute 28, 1");
2464 int main(void) { return 0; }
2465 EOF
2466
2467     # We have to check if pld is a nop and disable it.
2468     check_asm pld '"pld [r0]"'
2469
2470     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2471     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2472     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2473     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2474     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2475     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2476
2477     enabled_all armv6t2 shared !pic && enable_pic
2478
2479 elif enabled mips; then
2480
2481     check_asm loongson '"dmult.g $1, $2, $3"'
2482     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2483
2484 elif enabled ppc; then
2485
2486     enable local_aligned_8 local_aligned_16
2487
2488     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2489     check_asm ibm_asm   '"add 0, 0, 0"'
2490     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2491     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2492
2493     # AltiVec flags: The FSF version of GCC differs from the Apple version
2494     if enabled altivec; then
2495         nogas=warn
2496         check_cflags -maltivec -mabi=altivec &&
2497         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2498         check_cflags -faltivec
2499
2500         # check if our compiler supports Motorola AltiVec C API
2501         check_cc <<EOF || disable altivec
2502 $inc_altivec_h
2503 int main(void) {
2504     vector signed int v1, v2, v3;
2505     v1 = vec_add(v2,v3);
2506     return 0;
2507 }
2508 EOF
2509
2510         # check if our compiler supports braces for vector declarations
2511         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2512 $inc_altivec_h
2513 int main (void) { (vector int) {1}; return 0; }
2514 EOF
2515     fi
2516
2517 elif enabled sparc; then
2518
2519     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2520         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2521
2522 elif enabled x86; then
2523
2524     enable local_aligned_8 local_aligned_16
2525
2526     # check whether EBP is available on x86
2527     # As 'i' is stored on the stack, this program will crash
2528     # if the base pointer is used to access it because the
2529     # base pointer is cleared in the inline assembly code.
2530     check_exec_crash <<EOF && enable ebp_available
2531     volatile int i=0;
2532     __asm__ volatile (
2533         "xorl %%ebp, %%ebp"
2534     ::: "%ebp");
2535     return i;
2536 EOF
2537
2538     # check whether EBX is available on x86
2539     check_asm ebx_available '""::"b"(0)' &&
2540         check_asm ebx_available '"":::"%ebx"'
2541
2542     # check whether more than 10 operands are supported
2543     check_cc <<EOF && enable ten_operands
2544 int main(void) {
2545     int x=0;
2546     __asm__ volatile(
2547         ""
2548         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2549     );
2550     return 0;
2551 }
2552 EOF
2553
2554     # check whether binutils is new enough to compile SSSE3/MMX2
2555     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2556     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2557
2558     check_asm bswap '"bswap %%eax" ::: "%eax"'
2559
2560     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2561     enabled     x86_64        && append YASMFLAGS "-m amd64"
2562     enabled     pic           && append YASMFLAGS "-DPIC"
2563     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2564     case "$objformat" in
2565         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2566     esac
2567     if ! disabled yasm; then
2568         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2569             warn "yasm not found, performance will suffer"
2570     fi
2571
2572     case "$cpu" in
2573         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2574             disable fast_clz
2575         ;;
2576     esac
2577
2578 fi
2579
2580 if enabled asm; then
2581     as=${gas:=$as}
2582     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2583         $nogas "GNU assembler not found, install gas-preprocessor"
2584 fi
2585
2586 if check_func dlopen; then
2587     ldl=
2588 elif check_func dlopen -ldl; then
2589     ldl=-ldl
2590 fi
2591
2592 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2593 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2594
2595 check_func  fcntl
2596 check_func  fork
2597 check_func  getaddrinfo $network_extralibs
2598 check_func  gethrtime
2599 check_func  getrusage
2600 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2601 check_func  inet_aton $network_extralibs
2602 check_func  isatty
2603 check_func  ${malloc_prefix}memalign            && enable memalign
2604 check_func  mkstemp
2605 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2606 check_func  setrlimit
2607 check_func  strerror_r
2608 check_func_headers io.h setmode
2609 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2610 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2611 check_func_headers windows.h GetProcessTimes
2612 check_func_headers windows.h VirtualAlloc
2613
2614 check_header conio.h
2615 check_header dlfcn.h
2616 check_header dxva2api.h
2617 check_header malloc.h
2618 check_header poll.h
2619 check_header sys/mman.h
2620 check_header sys/resource.h
2621 check_header sys/select.h
2622 check_header termios.h
2623 check_header vdpau/vdpau.h
2624 check_header vdpau/vdpau_x11.h
2625 check_header X11/extensions/XvMClib.h
2626
2627 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2628
2629 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2630      enabled_any $need_memalign ; then
2631     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2632 fi
2633
2634 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2635 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2636
2637 # check for some common methods of building with pthread support
2638 # do this before the optional library checks as some of them require pthreads
2639 if ! disabled pthreads && ! enabled w32threads; then
2640     enable pthreads
2641     if check_func pthread_create; then
2642         :
2643     elif check_func pthread_create -pthread; then
2644         add_cflags -pthread
2645         add_extralibs -pthread
2646     elif check_func pthread_create -pthreads; then
2647         add_cflags -pthreads
2648         add_extralibs -pthreads
2649     elif check_func pthread_create -lpthreadGC2; then
2650         add_extralibs -lpthreadGC2
2651     elif ! check_lib pthread.h pthread_create -lpthread; then
2652         disable pthreads
2653     fi
2654 fi
2655
2656 for thread in $THREADS_LIST; do
2657     if enabled $thread; then
2658         test -n "$thread_type" &&
2659             die "ERROR: Only one thread type must be selected." ||
2660             thread_type="$thread"
2661     fi
2662 done
2663
2664 check_lib math.h sin -lm
2665 disabled vaapi || check_lib va/va.h vaInitialize -lva
2666
2667 check_mathfunc exp2
2668 check_mathfunc exp2f
2669 check_mathfunc llrint
2670 check_mathfunc llrintf
2671 check_mathfunc log2
2672 check_mathfunc log2f
2673 check_mathfunc lrint
2674 check_mathfunc lrintf
2675 check_mathfunc round
2676 check_mathfunc roundf
2677 check_mathfunc truncf
2678
2679 # these are off by default, so fail if requested and not available
2680 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2681 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2682                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2683                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2684 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2685 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2686 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2687 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2688 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2689 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2690 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2691 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2692                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2693 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2694                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2695 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2696 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2697 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2698 enabled libvpx     && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2699                         check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2700                       die "ERROR: libvpx version must be >=0.9.1"; }
2701 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2702                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2703                         die "ERROR: libx264 version must be >= 0.98."; }
2704 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2705 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2706 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2707
2708 # libdc1394 check
2709 if enabled libdc1394; then
2710     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2711         enable libdc1394_2; } ||
2712     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2713         enable libdc1394_1; } ||
2714     die "ERROR: No version of libdc1394 found "
2715 fi
2716
2717 SDL_CONFIG="${cross_prefix}sdl-config"
2718 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2719     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2720     sdl_libs=$("${SDL_CONFIG}" --libs)
2721     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2722     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2723     enable sdl &&
2724     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2725 fi
2726
2727 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2728
2729 if enabled network; then
2730     check_type "sys/types.h sys/socket.h" socklen_t
2731     check_type netdb.h "struct addrinfo"
2732     check_type netinet/in.h "struct ipv6_mreq"
2733     check_type netinet/in.h "struct sockaddr_in6"
2734     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2735     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2736     # Prefer arpa/inet.h over winsock2
2737     if check_header arpa/inet.h ; then
2738         check_func closesocket
2739     elif check_header winsock2.h ; then
2740         check_func_headers winsock2.h closesocket -lws2 && \
2741             network_extralibs="-lws2" || \
2742         { check_func_headers winsock2.h closesocket -lws2_32 && \
2743             network_extralibs="-lws2_32"; }
2744         check_type ws2tcpip.h socklen_t
2745         check_type ws2tcpip.h "struct addrinfo"
2746         check_type ws2tcpip.h "struct ipv6_mreq"
2747         check_type ws2tcpip.h "struct sockaddr_in6"
2748         check_type ws2tcpip.h "struct sockaddr_storage"
2749         check_struct winsock2.h "struct sockaddr" sa_len
2750     else
2751         disable network
2752     fi
2753 fi
2754
2755 check_header linux/videodev.h
2756 check_header linux/videodev2.h
2757 check_header sys/videoio.h
2758
2759 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2760 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2761 # w32api 3.12 had it defined wrong
2762 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2763
2764 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2765 { check_header dev/bktr/ioctl_meteor.h &&
2766   check_header dev/bktr/ioctl_bt848.h; } ||
2767 { check_header machine/ioctl_meteor.h &&
2768   check_header machine/ioctl_bt848.h; } ||
2769 { check_header dev/video/meteor/ioctl_meteor.h &&
2770   check_header dev/video/bktr/ioctl_bt848.h; } ||
2771 check_header dev/ic/bt8xx.h
2772
2773 check_header sys/soundcard.h
2774 check_header soundcard.h
2775
2776 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2777
2778 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2779
2780 enabled x11grab                         &&
2781 check_header X11/Xlib.h                 &&
2782 check_header X11/extensions/XShm.h      &&
2783 check_header X11/extensions/Xfixes.h    &&
2784 check_func XOpenDisplay -lX11           &&
2785 check_func XShmCreateImage -lX11 -lXext &&
2786 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2787
2788 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2789 check_cpp_condition \
2790     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2791     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2792       disable vdpau; }
2793 fi
2794
2795 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2796
2797 # add some useful compiler flags if supported
2798 check_cflags -Wdeclaration-after-statement
2799 check_cflags -Wall
2800 check_cflags -Wno-switch
2801 check_cflags -Wdisabled-optimization
2802 check_cflags -Wpointer-arith
2803 check_cflags -Wredundant-decls
2804 check_cflags -Wno-pointer-sign
2805 check_cflags -Wcast-qual
2806 check_cflags -Wwrite-strings
2807 check_cflags -Wtype-limits
2808 check_cflags -Wundef
2809 check_cflags -Wmissing-prototypes
2810 enabled extra_warnings && check_cflags -Winline
2811
2812 # add some linker flags
2813 check_ldflags -Wl,--warn-common
2814 check_ldflags -Wl,--as-needed
2815 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'
2816 check_ldflags -Wl,-Bsymbolic
2817
2818 echo "X{};" > $TMPV
2819 if test_ldflags -Wl,--version-script,$TMPV; then
2820     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2821     check_cc <<EOF && enable symver_asm_label
2822 void ff_foo(void) __asm__ ("av_foo@VERSION");
2823 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2824 EOF
2825     check_cc <<EOF && enable symver_gnu_asm
2826 __asm__(".symver ff_foo,av_foo@VERSION");
2827 void ff_foo(void) {}
2828 EOF
2829 fi
2830
2831 if enabled small; then
2832     add_cflags $size_cflags
2833     optimizations="small"
2834 elif enabled optimizations; then
2835     add_cflags $speed_cflags
2836 else
2837     add_cflags $noopt_cflags
2838 fi
2839 check_cflags -fno-math-errno
2840 check_cflags -fno-signed-zeros
2841
2842 if enabled icc; then
2843     # Just warnings, no remarks
2844     check_cflags -w1
2845     # -wd: Disable following warnings
2846     # 144, 167, 556: -Wno-pointer-sign
2847     # 10006: ignoring unknown option -fno-signed-zeros
2848     # 10156: ignoring option '-W'; no argument required
2849     check_cflags -wd144,167,556,10006,10156
2850     # 11030: Warning unknown option --as-needed
2851     # 10156: ignoring option '-export'; no argument required
2852     check_ldflags -wd10156,11030
2853     # Allow to compile with optimizations
2854     check_ldflags -march=$cpu
2855     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2856     enable ebp_available
2857 elif enabled ccc; then
2858     # disable some annoying warnings
2859     add_cflags -msg_disable cvtu32to64
2860     add_cflags -msg_disable embedcomment
2861     add_cflags -msg_disable needconstext
2862     add_cflags -msg_disable nomainieee
2863     add_cflags -msg_disable ptrmismatch1
2864     add_cflags -msg_disable unreachcode
2865 elif enabled gcc; then
2866     check_cflags -fno-tree-vectorize
2867     check_cflags -Werror=implicit-function-declaration
2868     check_cflags -Werror=missing-prototypes
2869 elif enabled clang; then
2870     check_cflags -Qunused-arguments
2871 elif enabled armcc; then
2872     # 2523: use of inline assembler is deprecated
2873     add_cflags -Wrvct,--diag_suppress=2523
2874     add_cflags -Wrvct,--diag_suppress=1207
2875 elif enabled tms470; then
2876     add_cflags -pds=824 -pds=837
2877 fi
2878
2879 enabled_any $THREADS_LIST      && enable threads
2880
2881 check_deps $CONFIG_LIST       \
2882            $CONFIG_EXTRA      \
2883            $HAVE_LIST         \
2884            $DECODER_LIST      \
2885            $ENCODER_LIST      \
2886            $HWACCEL_LIST      \
2887            $PARSER_LIST       \
2888            $BSF_LIST          \
2889            $DEMUXER_LIST      \
2890            $MUXER_LIST        \
2891            $FILTER_LIST       \
2892            $INDEV_LIST        \
2893            $OUTDEV_LIST       \
2894            $PROTOCOL_LIST     \
2895            $ACODEC_TESTS      \
2896            $VCODEC_TESTS      \
2897            $LAVF_TESTS        \
2898            $LAVFI_TESTS       \
2899            $SEEK_TESTS        \
2900
2901 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2902
2903 echo "install prefix            $prefix"
2904 echo "source path               $source_path"
2905 echo "C compiler                $cc"
2906 echo "ARCH                      $arch ($cpu)"
2907 if test "$build_suffix" != ""; then
2908     echo "build suffix              $build_suffix"
2909 fi
2910 if test "$extra_version" != ""; then
2911     echo "version string suffix     $extra_version"
2912 fi
2913 echo "big-endian                ${bigendian-no}"
2914 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2915 if enabled x86; then
2916     echo "yasm                      ${yasm-no}"
2917     echo "MMX enabled               ${mmx-no}"
2918     echo "MMX2 enabled              ${mmx2-no}"
2919     echo "3DNow! enabled            ${amd3dnow-no}"
2920     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2921     echo "SSE enabled               ${sse-no}"
2922     echo "SSSE3 enabled             ${ssse3-no}"
2923     echo "CMOV enabled              ${cmov-no}"
2924     echo "CMOV is fast              ${fast_cmov-no}"
2925     echo "EBX available             ${ebx_available-no}"
2926     echo "EBP available             ${ebp_available-no}"
2927     echo "10 operands supported     ${ten_operands-no}"
2928 fi
2929 if enabled arm; then
2930     echo "ARMv5TE enabled           ${armv5te-no}"
2931     echo "ARMv6 enabled             ${armv6-no}"
2932     echo "ARMv6T2 enabled           ${armv6t2-no}"
2933     echo "ARM VFP enabled           ${armvfp-no}"
2934     echo "IWMMXT enabled            ${iwmmxt-no}"
2935     echo "NEON enabled              ${neon-no}"
2936 fi
2937 if enabled mips; then
2938     echo "MMI enabled               ${mmi-no}"
2939 fi
2940 if enabled ppc; then
2941     echo "AltiVec enabled           ${altivec-no}"
2942     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2943     echo "dcbzl available           ${dcbzl-no}"
2944 fi
2945 if enabled sparc; then
2946     echo "VIS enabled               ${vis-no}"
2947 fi
2948 echo "debug symbols             ${debug-no}"
2949 echo "strip symbols             ${stripping-no}"
2950 echo "optimizations             ${optimizations-no}"
2951 echo "static                    ${static-no}"
2952 echo "shared                    ${shared-no}"
2953 echo "postprocessing support    ${postproc-no}"
2954 echo "new filter support        ${avfilter-no}"
2955 echo "network support           ${network-no}"
2956 echo "threading support         ${thread_type-no}"
2957 echo "SDL support               ${sdl-no}"
2958 echo "Sun medialib support      ${mlib-no}"
2959 echo "AVISynth enabled          ${avisynth-no}"
2960 echo "libdc1394 support         ${libdc1394-no}"
2961 echo "libdirac enabled          ${libdirac-no}"
2962 echo "libfaac enabled           ${libfaac-no}"
2963 echo "libgsm enabled            ${libgsm-no}"
2964 echo "libmp3lame enabled        ${libmp3lame-no}"
2965 echo "libnut enabled            ${libnut-no}"
2966 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2967 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2968 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2969 echo "librtmp enabled           ${librtmp-no}"
2970 echo "libschroedinger enabled   ${libschroedinger-no}"
2971 echo "libspeex enabled          ${libspeex-no}"
2972 echo "libtheora enabled         ${libtheora-no}"
2973 echo "libvorbis enabled         ${libvorbis-no}"
2974 echo "libvpx enabled            ${libvpx-no}"
2975 echo "libx264 enabled           ${libx264-no}"
2976 echo "libxavs enabled           ${libxavs-no}"
2977 echo "libxvid enabled           ${libxvid-no}"
2978 echo "zlib enabled              ${zlib-no}"
2979 echo "bzlib enabled             ${bzlib-no}"
2980 echo
2981
2982 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2983     echo "Enabled ${type}s:"
2984     eval list=\$$(toupper $type)_LIST
2985     print_enabled '_*' $list | sort | pr -3 -t
2986     echo
2987 done
2988
2989 license="LGPL version 2.1 or later"
2990 if enabled nonfree; then
2991     license="nonfree and unredistributable"
2992 elif enabled gplv3; then
2993     license="GPL version 3 or later"
2994 elif enabled lgplv3; then
2995     license="LGPL version 3 or later"
2996 elif enabled gpl; then
2997     license="GPL version 2 or later"
2998 fi
2999
3000 echo "License: $license"
3001
3002 echo "Creating config.mak and config.h..."
3003
3004 # build tree in object directory if source path is different from current one
3005 if enabled source_path_used; then
3006     DIRS="
3007         doc
3008         libavcodec
3009         libavcodec/$arch
3010         libavcore
3011         libavdevice
3012         libavfilter
3013         libavformat
3014         libavutil
3015         libavutil/$arch
3016         libpostproc
3017         libswscale
3018         libswscale/$arch
3019         tests
3020         tools
3021     "
3022     FILES="
3023         Makefile
3024         common.mak
3025         subdir.mak
3026         doc/texi2pod.pl
3027         libavcodec/Makefile
3028         libavcodec/${arch}/Makefile
3029         libavcore/Makefile
3030         libavdevice/Makefile
3031         libavfilter/Makefile
3032         libavformat/Makefile
3033         libavutil/Makefile
3034         libpostproc/Makefile
3035         libswscale/Makefile
3036     "
3037     map 'mkdir -p $v' $DIRS;
3038     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3039 fi
3040
3041 enabled stripping || strip="echo skipping strip"
3042
3043 cat > config.mak <<EOF
3044 # Automatically generated by configure - do not modify!
3045 ifndef FFMPEG_CONFIG_MAK
3046 FFMPEG_CONFIG_MAK=1
3047 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3048 prefix=$prefix
3049 LIBDIR=\$(DESTDIR)$libdir
3050 SHLIBDIR=\$(DESTDIR)$shlibdir
3051 INCDIR=\$(DESTDIR)$incdir
3052 BINDIR=\$(DESTDIR)$bindir
3053 DATADIR=\$(DESTDIR)$datadir
3054 MANDIR=\$(DESTDIR)$mandir
3055 SRC_PATH="$source_path"
3056 SRC_PATH_BARE=$source_path
3057 BUILD_ROOT="$PWD"
3058 CC_IDENT=$cc_ident
3059 ARCH=$arch
3060 CC=$cc
3061 AS=$as
3062 LD=$ld
3063 DEPCC=$dep_cc
3064 YASM=$yasmexe
3065 YASMDEP=$yasmexe
3066 AR=$ar
3067 RANLIB=$ranlib
3068 CP=cp -p
3069 LN_S=$ln_s
3070 STRIP=$strip
3071 CPPFLAGS=$CPPFLAGS
3072 CFLAGS=$CFLAGS
3073 ASFLAGS=$ASFLAGS
3074 CC_O=$CC_O
3075 LDFLAGS=$LDFLAGS
3076 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3077 SHFLAGS=$SHFLAGS
3078 YASMFLAGS=$YASMFLAGS
3079 BUILDSUF=$build_suffix
3080 FULLNAME=$FULLNAME
3081 LIBPREF=$LIBPREF
3082 LIBSUF=$LIBSUF
3083 LIBNAME=$LIBNAME
3084 SLIBPREF=$SLIBPREF
3085 SLIBSUF=$SLIBSUF
3086 EXESUF=$EXESUF
3087 EXTRA_VERSION=$extra_version
3088 DEPFLAGS=$DEPFLAGS
3089 CCDEP=$CCDEP
3090 ASDEP=$ASDEP
3091 CC_DEPFLAGS=$CC_DEPFLAGS
3092 AS_DEPFLAGS=$AS_DEPFLAGS
3093 HOSTCC=$host_cc
3094 HOSTCFLAGS=$host_cflags
3095 HOSTEXESUF=$HOSTEXESUF
3096 HOSTLDFLAGS=$host_ldflags
3097 HOSTLIBS=$host_libs
3098 TARGET_EXEC=$target_exec
3099 TARGET_PATH=$target_path
3100 SDL_LIBS=$sdl_libs
3101 SDL_CFLAGS=$sdl_cflags
3102 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3103 EXTRALIBS=$extralibs
3104 INSTALL=install
3105 LIBTARGET=${LIBTARGET}
3106 SLIBNAME=${SLIBNAME}
3107 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3108 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3109 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3110 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3111 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3112 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3113 SAMPLES=$samples
3114 EOF
3115
3116 get_version(){
3117     name=$1
3118     file=$source_path/$2
3119     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3120     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3121     lcname=$(tolower $name)
3122     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3123     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3124 }
3125
3126 get_version LIBSWSCALE  libswscale/swscale.h
3127 get_version LIBPOSTPROC libpostproc/postprocess.h
3128 get_version LIBAVCODEC  libavcodec/avcodec.h
3129 get_version LIBAVCORE   libavcore/avcore.h
3130 get_version LIBAVDEVICE libavdevice/avdevice.h
3131 get_version LIBAVFORMAT libavformat/avformat.h
3132 get_version LIBAVUTIL   libavutil/avutil.h
3133 get_version LIBAVFILTER libavfilter/avfilter.h
3134
3135 cat > $TMPH <<EOF
3136 /* Automatically generated by configure - do not modify! */
3137 #ifndef FFMPEG_CONFIG_H
3138 #define FFMPEG_CONFIG_H
3139 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3140 #define FFMPEG_LICENSE "$(c_escape $license)"
3141 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3142 #define CC_TYPE "$cc_type"
3143 #define CC_VERSION $cc_version
3144 #define restrict $_restrict
3145 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3146 #define EXTERN_PREFIX "${extern_prefix}"
3147 #define EXTERN_ASM ${extern_prefix}
3148 EOF
3149
3150 test -n "$malloc_prefix" &&
3151     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3152
3153 if enabled small || disabled optimizations; then
3154     echo "#undef  av_always_inline"  >> $TMPH
3155     echo "#define av_always_inline"  >> $TMPH
3156 fi
3157
3158 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3159 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3160 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3161                                       $CONFIG_EXTRA      \
3162                                       $DECODER_LIST      \
3163                                       $ENCODER_LIST      \
3164                                       $HWACCEL_LIST      \
3165                                       $PARSER_LIST       \
3166                                       $BSF_LIST          \
3167                                       $DEMUXER_LIST      \
3168                                       $MUXER_LIST        \
3169                                       $FILTER_LIST       \
3170                                       $PROTOCOL_LIST     \
3171                                       $INDEV_LIST        \
3172                                       $OUTDEV_LIST       \
3173
3174 cat >>config.mak <<EOF
3175 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3176 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3177 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3178 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3179 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3180 EOF
3181
3182 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3183 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3184
3185 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3186 cp_if_changed $TMPH config.h
3187 touch .config
3188
3189 cat > $TMPH <<EOF
3190 /* Generated by ffconf */
3191 #ifndef AVUTIL_AVCONFIG_H
3192 #define AVUTIL_AVCONFIG_H
3193 EOF
3194
3195 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3196
3197 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3198
3199 cp_if_changed $TMPH libavutil/avconfig.h
3200
3201 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
3202
3203 test -n "$WARNINGS" && printf "\n$WARNINGS"
3204
3205 # build pkg-config files
3206
3207 pkgconfig_generate(){
3208 name=$1
3209 shortname=${name#lib}${build_suffix}
3210 comment=$2
3211 version=$3
3212 libs=$4
3213 requires=$5
3214 enabled $shortname || return 0
3215 cat <<EOF > $name/$name.pc
3216 prefix=$prefix
3217 exec_prefix=\${prefix}
3218 libdir=$libdir
3219 includedir=$incdir
3220
3221 Name: $name
3222 Description: $comment
3223 Version: $version
3224 Requires: $(enabled shared || echo $requires)
3225 Requires.private: $(enabled shared && echo $requires)
3226 Conflicts:
3227 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3228 Libs.private: $(enabled shared && echo $libs)
3229 Cflags: -I\${includedir}
3230 EOF
3231 cat <<EOF > $name/$name-uninstalled.pc
3232 prefix=
3233 exec_prefix=
3234 libdir=\${pcfiledir}
3235 includedir=${source_path}
3236
3237 Name: $name
3238 Description: $comment
3239 Version: $version
3240 Requires: $requires
3241 Conflicts:
3242 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3243 Cflags: -I\${includedir}
3244 EOF
3245 }
3246
3247 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3248 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3249 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3250 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3251 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3252 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3253 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3254 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"