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   --enable-avfilter-lavf   video filters dependent on avformat [no]
  95   --disable-pthreads       disable pthreads [auto]
  96   --enable-w32threads      use Win32 threads [no]
  97   --enable-x11grab         enable X11 grabbing [no]
  98   --disable-network        disable network support [no]
  99   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
 100   --enable-gray            enable full grayscale support (slower color)
 101   --disable-swscale-alpha  disable alpha channel support in swscale
 102   --disable-fastdiv        disable table-based division
 103   --enable-small           optimize for size instead of speed
 104   --disable-aandct         disable AAN DCT code
 105   --disable-dct            disable DCT code
 106   --disable-fft            disable FFT code
 107   --disable-golomb         disable Golomb code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --disable-vaapi          disable VAAPI code
 112   --disable-vdpau          disable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libgsm          enable GSM support via libgsm [no]
 172   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 173   --enable-libnut          enable NUT (de)muxing via libnut,
 174                            native (de)muxer exists [no]
 175   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 176   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 177   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 178   --enable-libspeex        enable Speex decoding via libspeex [no]
 179   --enable-libtheora       enable Theora encoding via libtheora [no]
 180   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 181                            native implementation exists [no]
 182   --enable-libvpx          enable VP8 support via libvpx [no]
 183   --enable-libx264         enable H.264 encoding via x264 [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     avfilter_lavf
 853     avformat
 854     avisynth
 855     bzlib
 856     dct
 857     doc
 858     dwt
 859     dxva2
 860     fastdiv
 861     ffmpeg
 862     ffplay
 863     ffprobe
 864     ffserver
 865     fft
 866     golomb
 867     gpl
 868     gray
 869     h264dsp
 870     hardcoded_tables
 871     libdc1394
 872     libdirac
 873     libfaac
 874     libgsm
 875     libmp3lame
 876     libnut
 877     libopencore_amrnb
 878     libopencore_amrwb
 879     libopenjpeg
 880     librtmp
 881     libschroedinger
 882     libspeex
 883     libtheora
 884     libvorbis
 885     libvpx
 886     libx264
 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 libxvid_encoder_deps="libxvid"
1322
1323 # demuxers / muxers
1324 ac3_demuxer_deps="ac3_parser"
1325 asf_stream_muxer_select="asf_muxer"
1326 avisynth_demuxer_deps="avisynth"
1327 dirac_demuxer_deps="dirac_parser"
1328 eac3_demuxer_select="ac3_parser"
1329 ipod_muxer_select="mov_muxer"
1330 libnut_demuxer_deps="libnut"
1331 libnut_muxer_deps="libnut"
1332 matroska_audio_muxer_select="matroska_muxer"
1333 matroska_demuxer_suggest="zlib bzlib"
1334 mov_demuxer_suggest="zlib"
1335 mp3_demuxer_deps="mpegaudio_parser"
1336 mp4_muxer_select="mov_muxer"
1337 mpegtsraw_demuxer_select="mpegts_demuxer"
1338 mxf_d10_muxer_select="mxf_muxer"
1339 ogg_demuxer_select="golomb"
1340 psp_muxer_select="mov_muxer"
1341 rtsp_demuxer_deps="sdp_demuxer"
1342 rtsp_muxer_deps="sdp_demuxer"
1343 rtsp_muxer_select="rtp_muxer"
1344 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1345 sdp_demuxer_select="asf_demuxer rm_demuxer"
1346 spdif_muxer_select="aac_parser"
1347 tg2_muxer_select="mov_muxer"
1348 tgp_muxer_select="mov_muxer"
1349 w64_demuxer_deps="wav_demuxer"
1350
1351 # indevs / outdevs
1352 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1353 alsa_indev_extralibs="-lasound"
1354 alsa_outdev_deps="alsa_asoundlib_h"
1355 alsa_outdev_extralibs="-lasound"
1356 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1357 dv1394_indev_deps="dv1394 dv_demuxer"
1358 jack_indev_deps="jack_jack_h"
1359 jack_indev_extralibs="-ljack"
1360 libdc1394_indev_deps="libdc1394"
1361 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1362 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1363 v4l_indev_deps="linux_videodev_h"
1364 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1365 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1366 vfwcap_indev_extralibs="-lavicap32"
1367 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1368 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1369
1370 # protocols
1371 gopher_protocol_deps="network"
1372 http_protocol_deps="network"
1373 http_protocol_select="tcp_protocol"
1374 mmst_protocol_deps="network"
1375 rtmp_protocol_select="tcp_protocol"
1376 rtp_protocol_select="udp_protocol"
1377 tcp_protocol_deps="network"
1378 udp_protocol_deps="network"
1379
1380 # filters
1381 movie_filter_deps="avfilter_lavf"
1382 avfilter_lavf_deps="avformat"
1383
1384 # libraries
1385 avdevice_deps="avcodec avformat"
1386 avformat_deps="avcodec"
1387
1388 # programs
1389 ffmpeg_deps="avcodec avformat swscale"
1390 ffmpeg_select="buffer_filter"
1391 ffplay_deps="avcodec avformat swscale sdl"
1392 ffplay_select="rdft"
1393 ffprobe_deps="avcodec avformat"
1394 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1395 ffserver_extralibs='$ldl'
1396
1397 doc_deps="texi2html"
1398
1399 # tests
1400
1401 test_deps(){
1402     suf1=$1
1403     suf2=$2
1404     shift 2
1405     for v; do
1406         dep=${v%=*}
1407         tests=${v#*=}
1408         for name in ${tests}; do
1409             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1410         done
1411     done
1412 }
1413
1414 test_deps _encoder _decoder                                             \
1415     ac3                                                                 \
1416     adpcm_g726=g726                                                     \
1417     adpcm_ima_qt                                                        \
1418     adpcm_ima_wav                                                       \
1419     adpcm_ms                                                            \
1420     adpcm_swf                                                           \
1421     adpcm_yamaha=adpcm_yam                                              \
1422     alac                                                                \
1423     asv1                                                                \
1424     asv2                                                                \
1425     bmp                                                                 \
1426     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1427     dvvideo="dv dv50"                                                   \
1428     ffv1                                                                \
1429     flac                                                                \
1430     flashsv                                                             \
1431     flv                                                                 \
1432     gif                                                                 \
1433     h261                                                                \
1434     h263="h263 h263p"                                                   \
1435     huffyuv                                                             \
1436     jpegls                                                              \
1437     mjpeg="jpg mjpeg ljpeg"                                             \
1438     mp2                                                                 \
1439     mpeg1video="mpeg mpeg1b"                                            \
1440     mpeg2video="mpeg2 mpeg2thread"                                      \
1441     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1442     msmpeg4v3=msmpeg4                                                   \
1443     msmpeg4v2                                                           \
1444     pbm=pbmpipe                                                         \
1445     pcx                                                                 \
1446     pgm="pgm pgmpipe"                                                   \
1447     ppm="ppm ppmpipe"                                                   \
1448     rawvideo="rgb yuv"                                                  \
1449     roq                                                                 \
1450     rv10                                                                \
1451     rv20                                                                \
1452     sgi                                                                 \
1453     snow="snow snowll"                                                  \
1454     svq1                                                                \
1455     targa=tga                                                           \
1456     tiff                                                                \
1457     wmav1                                                               \
1458     wmav2                                                               \
1459     wmv1                                                                \
1460     wmv2                                                                \
1461
1462 test_deps _muxer _demuxer                                               \
1463     aiff                                                                \
1464     pcm_alaw=alaw                                                       \
1465     asf                                                                 \
1466     au                                                                  \
1467     avi                                                                 \
1468     dv=dv_fmt                                                           \
1469     ffm                                                                 \
1470     flv=flv_fmt                                                         \
1471     gxf                                                                 \
1472     matroska=mkv                                                        \
1473     mmf                                                                 \
1474     mov                                                                 \
1475     pcm_mulaw=mulaw                                                     \
1476     mxf                                                                 \
1477     nut                                                                 \
1478     ogg                                                                 \
1479     rawvideo=pixfmt                                                     \
1480     rm                                                                  \
1481     swf                                                                 \
1482     mpegts=ts                                                           \
1483     voc                                                                 \
1484     wav                                                                 \
1485     yuv4mpegpipe=yuv4mpeg                                               \
1486
1487 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1488 pixdesc_be_test_deps="bigendian"
1489 pixdesc_le_test_deps="!bigendian"
1490
1491 # default parameters
1492
1493 logfile="config.log"
1494
1495 # installation paths
1496 prefix_default="/usr/local"
1497 bindir_default='${prefix}/bin'
1498 datadir_default='${prefix}/share/ffmpeg'
1499 incdir_default='${prefix}/include'
1500 libdir_default='${prefix}/lib'
1501 mandir_default='${prefix}/share/man'
1502 shlibdir_default="$libdir_default"
1503
1504 # toolchain
1505 ar_default="ar"
1506 cc_default="gcc"
1507 cc_version=\"unknown\"
1508 host_cc_default="gcc"
1509 ln_s="ln -sf"
1510 nm_default="nm"
1511 objformat="elf"
1512 ranlib="ranlib"
1513 strip_default="strip"
1514 yasmexe="yasm"
1515 nogas=":"
1516
1517 nm_opts='-g'
1518
1519 # machine
1520 arch_default=$(uname -m)
1521 cpu="generic"
1522
1523 # OS
1524 target_os_default=$(tolower $(uname -s))
1525 host_os=$target_os_default
1526
1527 # configurable options
1528 enable avcodec
1529 enable avcore
1530 enable avdevice
1531 enable avfilter
1532 enable avformat
1533 enable avutil
1534 enable asm
1535 enable debug
1536 enable doc
1537 enable fastdiv
1538 enable ffmpeg
1539 enable ffplay
1540 enable ffprobe
1541 enable ffserver
1542 enable mpegaudio_hp
1543 enable network
1544 enable optimizations
1545 enable protocols
1546 enable static
1547 enable stripping
1548 enable swscale
1549 enable swscale_alpha
1550
1551 # build settings
1552 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1553 FFSERVERLDFLAGS=-Wl,-E
1554 LIBPREF="lib"
1555 LIBSUF=".a"
1556 FULLNAME='$(NAME)$(BUILDSUF)'
1557 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1558 SLIBPREF="lib"
1559 SLIBSUF=".so"
1560 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1561 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1562 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1563 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1564
1565 CC_O='-o $@'
1566
1567 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1568 host_libs='-lm'
1569
1570 target_path='$(CURDIR)'
1571
1572 # since the object filename is not given with the -MM flag, the compiler
1573 # is only able to print the basename, and we must add the path ourselves
1574 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1575 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1576
1577 # find source path
1578 source_path="$(dirname "$0")"
1579 enable source_path_used
1580 if test -f configure; then
1581     source_path="$(pwd)"
1582     disable source_path_used
1583 else
1584     source_path="$(cd "$source_path"; pwd)"
1585     echo "$source_path" | grep -q '[[:blank:]]' &&
1586         die "Out of tree builds are impossible with whitespace in source path."
1587     test -e "$source_path/config.h" &&
1588         die "Out of tree builds are impossible with config.h in source dir."
1589 fi
1590
1591 for v in "$@"; do
1592     r=${v#*=}
1593     l=${v%"$r"}
1594     r=$(sh_quote "$r")
1595     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1596 done
1597
1598 find_things(){
1599     thing=$1
1600     pattern=$2
1601     file=$source_path/$3
1602     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1603 }
1604
1605 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1606 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1607 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1608 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1609 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1610 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1611 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1612 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1613 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1614 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1615 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1616
1617 find_tests(){
1618     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1619 }
1620
1621 ACODEC_TESTS=$(find_tests acodec)
1622 VCODEC_TESTS=$(find_tests vsynth1)
1623 LAVF_TESTS=$(find_tests lavf)
1624 LAVFI_TESTS=$(find_tests lavfi)
1625 SEEK_TESTS=$(find_tests seek seek_)
1626
1627 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1628
1629 for n in $COMPONENT_LIST; do
1630     v=$(toupper ${n%s})_LIST
1631     eval enable \$$v
1632     eval ${n}_if_any="\$$v"
1633 done
1634
1635 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1636
1637 die_unknown(){
1638     echo "Unknown option \"$1\"."
1639     echo "See $0 --help for available options."
1640     exit 1
1641 }
1642
1643 show_list() {
1644     suffix=_$1
1645     shift
1646     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1647     exit 0
1648 }
1649
1650 for opt do
1651     optval="${opt#*=}"
1652     case "$opt" in
1653     --extra-ldflags=*) add_ldflags $optval
1654     ;;
1655     --extra-libs=*) add_extralibs $optval
1656     ;;
1657     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1658     ;;
1659     --enable-debug=*) debuglevel="$optval"
1660     ;;
1661     --disable-everything)
1662     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1663     ;;
1664     --enable-*=*|--disable-*=*)
1665     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1666     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1667     eval list=\$$(toupper $thing)_LIST
1668     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1669     $action $(filter "$name" $list)
1670     ;;
1671     --enable-?*|--disable-?*)
1672     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1673     if is_in $option $COMPONENT_LIST; then
1674         test $action = disable && action=unset
1675         eval $action \$$(toupper ${option%s})_LIST
1676     elif is_in $option $CMDLINE_SELECT; then
1677         $action $option
1678     else
1679         die_unknown $opt
1680     fi
1681     ;;
1682     --list-*)
1683         NAME="${opt#--list-}"
1684         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1685         NAME=${NAME%s}
1686         eval show_list $NAME \$$(toupper $NAME)_LIST
1687     ;;
1688     --help|-h) show_help
1689     ;;
1690     *)
1691     optname="${opt%%=*}"
1692     optname="${optname#--}"
1693     optname=$(echo "$optname" | sed 's/-/_/g')
1694     if is_in $optname $CMDLINE_SET; then
1695         eval $optname='$optval'
1696     elif is_in $optname $CMDLINE_APPEND; then
1697         append $optname "$optval"
1698     else
1699          die_unknown $opt
1700     fi
1701     ;;
1702     esac
1703 done
1704
1705 disabled logging && logfile=/dev/null
1706
1707 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1708 set >> $logfile
1709
1710 test -n "$cross_prefix" && enable cross_compile
1711
1712 if enabled cross_compile; then
1713     test -n "$arch" && test -n "$target_os" ||
1714         die "Must specify target arch and OS when cross-compiling"
1715 fi
1716
1717 set_default arch target_os
1718
1719 ar_default="${cross_prefix}${ar_default}"
1720 cc_default="${cross_prefix}${cc_default}"
1721 nm_default="${cross_prefix}${nm_default}"
1722 ranlib="${cross_prefix}${ranlib}"
1723 strip_default="${cross_prefix}${strip_default}"
1724
1725 sysinclude_default="${sysroot}/usr/include"
1726
1727 set_default cc nm strip sysinclude
1728 enabled cross_compile || host_cc_default=$cc
1729 set_default host_cc
1730
1731 exesuf() {
1732     case $1 in
1733         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1734     esac
1735 }
1736
1737 EXESUF=$(exesuf $target_os)
1738 HOSTEXESUF=$(exesuf $host_os)
1739
1740 # set temporary file name
1741 : ${TMPDIR:=$TEMPDIR}
1742 : ${TMPDIR:=$TMP}
1743 : ${TMPDIR:=/tmp}
1744
1745 if ! check_cmd type mktemp; then
1746     # simple replacement for missing mktemp
1747     # NOT SAFE FOR GENERAL USE
1748     mktemp(){
1749         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1750     }
1751 fi
1752
1753 tmpfile(){
1754     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1755         (set -C; exec > $tmp) 2>/dev/null ||
1756         die "Unable to create temporary file in $TMPDIR."
1757     append TMPFILES $tmp
1758     eval $1=$tmp
1759 }
1760
1761 trap 'rm -f -- $TMPFILES' EXIT
1762 trap exit HUP INT TERM
1763
1764 tmpfile TMPC  .c
1765 tmpfile TMPE  $EXESUF
1766 tmpfile TMPH  .h
1767 tmpfile TMPO  .o
1768 tmpfile TMPS  .S
1769 tmpfile TMPV  .ver
1770 tmpfile TMPSH .sh
1771
1772 unset -f mktemp
1773
1774 # make sure we can execute files in $TMPDIR
1775 cat > $TMPSH 2>> $logfile <<EOF
1776 #! /bin/sh
1777 EOF
1778 chmod +x $TMPSH >> $logfile 2>&1
1779 if ! $TMPSH >> $logfile 2>&1; then
1780     cat <<EOF
1781 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1782 variable to another directory and make sure that it is not mounted noexec.
1783 EOF
1784     die "Sanity test failed."
1785 fi
1786
1787 filter_cflags=echo
1788 filter_cppflags=echo
1789 filter_asflags=echo
1790
1791 if   $cc -v 2>&1 | grep -qi ^gcc; then
1792     cc_type=gcc
1793     cc_version=__VERSION__
1794     if ! $cc -dumpversion | grep -q '^2\.'; then
1795         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1796         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1797     fi
1798     speed_cflags='-O3'
1799     size_cflags='-Os'
1800 elif $cc --version 2>/dev/null | grep -q Intel; then
1801     cc_type=icc
1802     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1803     CC_DEPFLAGS='-MMD'
1804     AS_DEPFLAGS='-MMD'
1805     speed_cflags='-O3'
1806     size_cflags='-Os'
1807     noopt_cflags='-O1'
1808 elif $cc -v 2>&1 | grep -q xlc; then
1809     cc_type=xlc
1810     cc_version="AV_STRINGIFY(__IBMC__)"
1811     speed_cflags='-O5'
1812     size_cflags='-O5 -qcompact'
1813 elif $cc -V 2>/dev/null | grep -q Compaq; then
1814     cc_type=ccc
1815     cc_version="AV_STRINGIFY(__DECC_VER)"
1816     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1817     debuglevel=3
1818     add_ldflags -Wl,-z,now # calls to libots crash without this
1819     speed_cflags='-fast'
1820     size_cflags='-O1'
1821 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1822     test -d "$sysroot" || die "No valid sysroot specified."
1823     cc_type=armcc
1824     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1825     armcc_conf="$PWD/armcc.conf"
1826     $cc --arm_linux_configure                 \
1827         --arm_linux_config_file="$armcc_conf" \
1828         --configure_sysroot="$sysroot"        \
1829         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1830         die "Error creating armcc configuration file."
1831     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1832     as_default="${cross_prefix}gcc"
1833     CC_DEPFLAGS='-MMD'
1834     AS_DEPFLAGS='-MMD'
1835     speed_cflags='-O3'
1836     size_cflags='-Os'
1837 elif $cc -version 2>/dev/null | grep -q TMS470; then
1838     cc_type=tms470
1839     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1840     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1841     CC_O='-fr=$(@D)'
1842     as_default="${cross_prefix}gcc"
1843     ld_default="${cross_prefix}gcc"
1844     TMPO=$(basename $TMPC .c).o
1845     append TMPFILES $TMPO
1846     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1847     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1848     AS_DEPFLAGS='-MMD'
1849     speed_cflags='-O3 -mf=5'
1850     size_cflags='-O3 -mf=2'
1851     filter_cflags=tms470_flags
1852     tms470_flags(){
1853         for flag; do
1854             case $flag in
1855                 -march=*|-mcpu=*)
1856                     case "${flag#*=}" in
1857                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1858                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1859                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1860                         armv6*|arm11*)          echo -mv=6   ;;
1861                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1862                                                 echo -mv=5e  ;;
1863                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1864                     esac
1865                     ;;
1866                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1867                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1868                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1869                 -msoft-float)   echo --float_support=vfplib       ;;
1870                 -O[0-3]|-mf=*)  echo $flag                        ;;
1871                 -g)             echo -g -mn                       ;;
1872                 -pds=*)         echo $flag                        ;;
1873             esac
1874         done
1875     }
1876 elif $cc -v 2>&1 | grep -q clang; then
1877     cc_type=clang
1878     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1879         cc_version=__clang_version__ || cc_version=__VERSION__
1880     CC_DEPFLAGS='-MMD'
1881     AS_DEPFLAGS='-MMD'
1882     speed_cflags='-O3'
1883     size_cflags='-Os'
1884 elif $cc -V 2>&1 | grep -q Sun; then
1885     cc_type=suncc
1886     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1887     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1888     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1889     speed_cflags='-O5'
1890     size_cflags='-O5 -xspace'
1891     filter_cflags=suncc_flags
1892     suncc_flags(){
1893         for flag; do
1894             case $flag in
1895                 -march=*|-mcpu=*)
1896                     case "${flag#*=}" in
1897                         native)                   echo -xtarget=native       ;;
1898                         v9|niagara)               echo -xarch=sparc          ;;
1899                         ultrasparc)               echo -xarch=sparcvis       ;;
1900                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1901                         i586|pentium)             echo -xchip=pentium        ;;
1902                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1903                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1904                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1905                         pentium4*)          echo -xtarget=pentium4           ;;
1906                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1907                         *-sse3)             echo -xarch=sse3                 ;;
1908                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1909                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1910                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1911                         k8|opteron|athlon64|athlon-fx)
1912                                                   echo -xarch=sse2a          ;;
1913                         athlon*)                  echo -xarch=pentium_proa   ;;
1914                     esac
1915                     ;;
1916                 -std=c99)             echo -xc99              ;;
1917                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1918                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1919                 -W*,*)                echo $flag              ;;
1920                 -f*-*|-W*)                                    ;;
1921                 *)                    echo $flag              ;;
1922             esac
1923         done
1924     }
1925 fi
1926
1927 test -n "$cc_type" && enable $cc_type ||
1928     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1929
1930 : ${as_default:=$cc}
1931 : ${dep_cc_default:=$cc}
1932 : ${ld_default:=$cc}
1933 set_default ar as dep_cc ld
1934
1935 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1936 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1937
1938 add_cflags $extra_cflags
1939 add_asflags $extra_cflags
1940
1941 if test -n "$sysroot"; then
1942     case "$cc_type" in
1943         gcc)
1944             add_cppflags --sysroot="$sysroot"
1945             add_ldflags --sysroot="$sysroot"
1946         ;;
1947         tms470)
1948             add_cppflags -I"$sysinclude"
1949             add_ldflags  --sysroot="$sysroot"
1950         ;;
1951         clang)
1952             add_cppflags -isysroot "$sysroot"
1953             add_ldflags -isysroot "$sysroot"
1954         ;;
1955     esac
1956 fi
1957
1958 if test "$cpu" = host; then
1959     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1960
1961     case "$cc_type" in
1962         gcc)
1963             check_native(){
1964                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1965                 sed -n "/$1=/{
1966                             s/.*$1=\\([^ ]*\\).*/\\1/
1967                             p
1968                             q
1969                         }" $TMPE
1970             }
1971             cpu=$(check_native -march || check_native -mcpu)
1972         ;;
1973     esac
1974
1975     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1976 fi
1977
1978 # Deal with common $arch aliases
1979 case "$arch" in
1980     arm*)
1981         arch="arm"
1982     ;;
1983     mips|mipsel|IP*)
1984         arch="mips"
1985     ;;
1986     mips64*)
1987         arch="mips"
1988         subarch="mips64"
1989     ;;
1990     parisc|hppa)
1991         arch="parisc"
1992     ;;
1993     parisc64|hppa64)
1994         arch="parisc"
1995         subarch="parisc64"
1996     ;;
1997     "Power Macintosh"|ppc|powerpc)
1998         arch="ppc"
1999     ;;
2000     ppc64|powerpc64)
2001         arch="ppc"
2002         subarch="ppc64"
2003     ;;
2004     s390|s390x)
2005         arch="s390"
2006     ;;
2007     sh4|sh)
2008         arch="sh4"
2009     ;;
2010     sun4u|sparc64)
2011         arch="sparc"
2012         subarch="sparc64"
2013     ;;
2014     i[3-6]86|i86pc|BePC|x86_64|amd64)
2015         arch="x86"
2016     ;;
2017 esac
2018
2019 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2020 enable $arch
2021
2022 # Add processor-specific flags
2023 if test "$cpu" = generic; then
2024     : do nothing
2025 elif enabled ppc; then
2026
2027     case $(tolower $cpu) in
2028         601|ppc601|powerpc601)
2029             cpuflags="-mcpu=601"
2030             disable altivec
2031         ;;
2032         603*|ppc603*|powerpc603*)
2033             cpuflags="-mcpu=603"
2034             disable altivec
2035         ;;
2036         604*|ppc604*|powerpc604*)
2037             cpuflags="-mcpu=604"
2038             disable altivec
2039         ;;
2040         g3|75*|ppc75*|powerpc75*)
2041             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2042             disable altivec
2043         ;;
2044         g4|745*|ppc745*|powerpc745*)
2045             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2046         ;;
2047         74*|ppc74*|powerpc74*)
2048             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2049         ;;
2050         g5|970|ppc970|powerpc970|power4*)
2051             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2052         ;;
2053         cell)
2054             cpuflags="-mcpu=cell"
2055             enable ldbrx
2056         ;;
2057         e500v2)
2058             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2059             disable altivec
2060         ;;
2061         e500)
2062             cpuflags="-mcpu=8540 -mhard-float"
2063             disable altivec
2064         ;;
2065     esac
2066
2067 elif enabled x86; then
2068
2069     case $cpu in
2070         i[345]86|pentium)
2071             cpuflags="-march=$cpu"
2072             disable mmx
2073         ;;
2074         # targets that do NOT support conditional mov (cmov)
2075         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2076             cpuflags="-march=$cpu"
2077             disable cmov
2078         ;;
2079         # targets that do support conditional mov (cmov)
2080         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2081             cpuflags="-march=$cpu"
2082             enable cmov
2083             enable fast_cmov
2084         ;;
2085         # targets that do support conditional mov but on which it's slow
2086         pentium4|pentium4m|prescott|nocona)
2087             cpuflags="-march=$cpu"
2088             enable cmov
2089             disable fast_cmov
2090         ;;
2091     esac
2092
2093 elif enabled sparc; then
2094
2095     case $cpu in
2096         niagara)
2097             cpuflags="-mcpu=$cpu"
2098             disable vis
2099         ;;
2100         sparc64)
2101             cpuflags="-mcpu=v9"
2102         ;;
2103     esac
2104
2105 elif enabled arm; then
2106
2107     case $cpu in
2108         armv*)
2109             cpuflags="-march=$cpu"
2110         ;;
2111         *)
2112             cpuflags="-mcpu=$cpu"
2113         ;;
2114     esac
2115
2116 elif enabled alpha; then
2117
2118     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2119
2120 elif enabled bfin; then
2121
2122     cpuflags="-mcpu=$cpu"
2123
2124 elif enabled mips; then
2125
2126     cpuflags="-march=$cpu"
2127
2128 elif enabled avr32; then
2129
2130     case $cpu in
2131         ap7[02]0[0-2])
2132             subarch="avr32_ap"
2133             cpuflags="-mpart=$cpu"
2134         ;;
2135         ap)
2136             subarch="avr32_ap"
2137             cpuflags="-march=$cpu"
2138         ;;
2139         uc3[ab]*)
2140             subarch="avr32_uc"
2141             cpuflags="-mcpu=$cpu"
2142         ;;
2143         uc)
2144             subarch="avr32_uc"
2145             cpuflags="-march=$cpu"
2146         ;;
2147     esac
2148
2149 fi
2150
2151 add_cflags $cpuflags
2152 add_asflags $cpuflags
2153
2154 # compiler sanity check
2155 check_exec <<EOF
2156 int main(void){ return 0; }
2157 EOF
2158 if test "$?" != 0; then
2159     echo "$cc is unable to create an executable file."
2160     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2161         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2162         echo "Only do this if you know what cross compiling means."
2163     fi
2164     die "C compiler test failed."
2165 fi
2166
2167 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2168 check_cflags -std=c99
2169 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2170 #include <stdlib.h>
2171 EOF
2172 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2173 #include <stdlib.h>
2174 EOF
2175
2176 check_host_cflags -std=c99
2177
2178 case "$arch" in
2179     alpha|ia64|mips|parisc|sparc)
2180         spic=$shared
2181     ;;
2182     x86)
2183         subarch="x86_32"
2184         check_cc <<EOF && subarch="x86_64"
2185         int test[(int)sizeof(char*) - 7];
2186 EOF
2187         if test "$subarch" = "x86_64"; then
2188             spic=$shared
2189         fi
2190     ;;
2191 esac
2192
2193 enable $subarch
2194 enabled spic && enable pic
2195
2196 # OS specific
2197 case $target_os in
2198     haiku)
2199         prefix_default="/boot/common"
2200         network_extralibs="-lnetwork"
2201         ;;
2202     sunos)
2203         FFSERVERLDFLAGS=""
2204         SHFLAGS='-shared -Wl,-h,$$(@F)'
2205         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2206         network_extralibs="-lsocket -lnsl"
2207         add_cppflags -D__EXTENSIONS__
2208         nm_opts='-P -g'
2209         ;;
2210     netbsd)
2211         oss_indev_extralibs="-lossaudio"
2212         oss_outdev_extralibs="-lossaudio"
2213         add_cppflags -D_XOPEN_SOURCE=600
2214         ;;
2215     openbsd)
2216         enable malloc_aligned
2217         # On OpenBSD 4.5. the compiler does not use PIC unless
2218         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2219         # however the generated executable will not do anything
2220         # (simply quits with exit-code 1, no crash, no output).
2221         # Thus explicitly enable PIC here.
2222         enable pic
2223         SHFLAGS='-shared'
2224         oss_indev_extralibs="-lossaudio"
2225         oss_outdev_extralibs="-lossaudio"
2226         ;;
2227     freebsd|dragonfly)
2228         enable malloc_aligned
2229         ;;
2230     bsd/os)
2231         add_extralibs -lpoll -lgnugetopt
2232         strip="strip -d"
2233         ;;
2234     darwin)
2235         enable malloc_aligned
2236         gas="gas-preprocessor.pl $cc"
2237         enabled ppc && add_asflags -force_cpusubtype_ALL
2238         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2239         strip="${strip} -x"
2240         add_ldflags -Wl,-dynamic,-search_paths_first
2241         SLIBSUF=".dylib"
2242         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2243         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2244         FFSERVERLDFLAGS=-Wl,-bind_at_load
2245         objformat="macho"
2246         enabled x86_64 && objformat="macho64"
2247         enabled_any pic shared ||
2248             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2249         ;;
2250     mingw32*)
2251         if test $target_os = "mingw32ce"; then
2252             disable network
2253         else
2254             target_os=mingw32
2255         fi
2256         LIBTARGET=i386
2257         if enabled x86_64; then
2258             enable malloc_aligned
2259             LIBTARGET=x64
2260         elif enabled arm; then
2261             LIBTARGET=arm
2262         fi
2263         shlibdir_default="$bindir_default"
2264         disable ffserver
2265         SLIBPREF=""
2266         SLIBSUF=".dll"
2267         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2268         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2269         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2270         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2271             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2272             install -d "$(LIBDIR)"; \
2273             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2274         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2275         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2276         objformat="win32"
2277         enable dos_paths
2278         check_cflags -fno-common
2279         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2280                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2281                 die "ERROR: MinGW runtime version must be >= 3.15."
2282         ;;
2283     cygwin*)
2284         target_os=cygwin
2285         shlibdir_default="$bindir_default"
2286         SLIBPREF="cyg"
2287         SLIBSUF=".dll"
2288         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2289         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2290         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2291         objformat="win32"
2292         enable dos_paths
2293         check_cflags -fno-common
2294         ;;
2295     *-dos|freedos|opendos)
2296         disable ffplay ffserver
2297         disable $INDEV_LIST $OUTDEV_LIST
2298         network_extralibs="-lsocket"
2299         objformat="coff"
2300         enable dos_paths
2301         ;;
2302     linux)
2303         enable dv1394
2304         ;;
2305     irix*)
2306         target_os=irix
2307         ranlib="echo ignoring ranlib"
2308         ;;
2309     os/2*)
2310         strip="lxlite"
2311         ln_s="cp -f"
2312         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2313         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2314         FFSERVERLDFLAGS=""
2315         LIBSUF="_s.a"
2316         SLIBPREF=""
2317         SLIBSUF=".dll"
2318         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2319         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2320         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2321           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2322           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2323           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2324           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2325           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2326         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2327           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2328         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2329         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2330         enable dos_paths
2331         ;;
2332     gnu/kfreebsd)
2333         ;;
2334     gnu)
2335         ;;
2336     none)
2337         ;;
2338     *)
2339         die "Unknown OS '$target_os'."
2340         ;;
2341 esac
2342
2343 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2344
2345 set_default $PATHS_LIST
2346
2347 # we need to build at least one lib type
2348 if ! enabled_any static shared; then
2349     cat <<EOF
2350 At least one library type must be built.
2351 Specify --enable-static to build the static libraries or --enable-shared to
2352 build the shared libraries as well. To only build the shared libraries specify
2353 --disable-static in addition to --enable-shared.
2354 EOF
2355     exit 1;
2356 fi
2357
2358 disabled static && LIBNAME=""
2359
2360 die_license_disabled() {
2361     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2362 }
2363
2364 die_license_disabled gpl libx264
2365 die_license_disabled gpl libxvid
2366 die_license_disabled gpl postproc
2367 die_license_disabled gpl x11grab
2368
2369 die_license_disabled nonfree libfaac
2370
2371 die_license_disabled version3 libopencore_amrnb
2372 die_license_disabled version3 libopencore_amrwb
2373
2374 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2375
2376 check_deps $ARCH_EXT_LIST
2377
2378 disabled optimizations || check_cflags -fomit-frame-pointer
2379
2380 enable_pic() {
2381     enable pic
2382     add_cppflags -DPIC
2383     add_cflags   -fPIC
2384     add_asflags  -fPIC
2385 }
2386
2387 enabled pic && enable_pic
2388
2389 check_cc <<EOF || die "Symbol mangling check failed."
2390 int ff_extern;
2391 EOF
2392 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2393 extern_prefix=${sym%%ff_extern*}
2394
2395 check_cc <<EOF && enable inline_asm
2396 void foo(void) { __asm__ volatile ("" ::); }
2397 EOF
2398
2399 _restrict=
2400 for restrict_keyword in restrict __restrict__ __restrict; do
2401     check_cc <<EOF && _restrict=$restrict_keyword && break
2402 void foo(char * $restrict_keyword p);
2403 EOF
2404 done
2405
2406 check_cc <<EOF && enable attribute_packed
2407 struct { int x; } __attribute__((packed)) x;
2408 EOF
2409
2410 check_cc <<EOF && enable attribute_may_alias
2411 union { int x; } __attribute__((may_alias)) x;
2412 EOF
2413
2414 check_cc <<EOF || die "endian test failed"
2415 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2416 EOF
2417 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2418
2419 if enabled alpha; then
2420
2421     check_cflags -mieee
2422
2423 elif enabled arm; then
2424
2425     check_cflags -marm
2426     nogas=die
2427
2428     check_ld <<EOF && enable vfp_args
2429 __asm__ (".eabi_attribute 28, 1");
2430 int main(void) { return 0; }
2431 EOF
2432
2433     # We have to check if pld is a nop and disable it.
2434     check_asm pld '"pld [r0]"'
2435
2436     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2437     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2438     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2439     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2440     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2441     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2442
2443     enabled_all armv6t2 shared !pic && enable_pic
2444
2445 elif enabled mips; then
2446
2447     check_asm loongson '"dmult.g $1, $2, $3"'
2448     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2449
2450 elif enabled ppc; then
2451
2452     enable local_aligned_8 local_aligned_16
2453
2454     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2455     check_asm ibm_asm   '"add 0, 0, 0"'
2456     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2457     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2458
2459     # AltiVec flags: The FSF version of GCC differs from the Apple version
2460     if enabled altivec; then
2461         nogas=warn
2462         check_cflags -maltivec -mabi=altivec &&
2463         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2464         check_cflags -faltivec
2465
2466         # check if our compiler supports Motorola AltiVec C API
2467         check_cc <<EOF || disable altivec
2468 $inc_altivec_h
2469 int main(void) {
2470     vector signed int v1, v2, v3;
2471     v1 = vec_add(v2,v3);
2472     return 0;
2473 }
2474 EOF
2475
2476         # check if our compiler supports braces for vector declarations
2477         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2478 $inc_altivec_h
2479 int main (void) { (vector int) {1}; return 0; }
2480 EOF
2481     fi
2482
2483 elif enabled sparc; then
2484
2485     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2486         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2487
2488 elif enabled x86; then
2489
2490     enable local_aligned_8 local_aligned_16
2491
2492     # check whether EBP is available on x86
2493     # As 'i' is stored on the stack, this program will crash
2494     # if the base pointer is used to access it because the
2495     # base pointer is cleared in the inline assembly code.
2496     check_exec_crash <<EOF && enable ebp_available
2497     volatile int i=0;
2498     __asm__ volatile (
2499         "xorl %%ebp, %%ebp"
2500     ::: "%ebp");
2501     return i;
2502 EOF
2503
2504     # check whether EBX is available on x86
2505     check_asm ebx_available '""::"b"(0)' &&
2506         check_asm ebx_available '"":::"%ebx"'
2507
2508     # check whether more than 10 operands are supported
2509     check_cc <<EOF && enable ten_operands
2510 int main(void) {
2511     int x=0;
2512     __asm__ volatile(
2513         ""
2514         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2515     );
2516     return 0;
2517 }
2518 EOF
2519
2520     # check whether binutils is new enough to compile SSSE3/MMX2
2521     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2522     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2523
2524     check_asm bswap '"bswap %%eax" ::: "%eax"'
2525
2526     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2527     enabled     x86_64        && append YASMFLAGS "-m amd64"
2528     enabled     pic           && append YASMFLAGS "-DPIC"
2529     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2530     case "$objformat" in
2531         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2532     esac
2533     if ! disabled yasm; then
2534         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2535             warn "yasm not found, performance will suffer"
2536     fi
2537
2538     case "$cpu" in
2539         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2540             disable fast_clz
2541         ;;
2542     esac
2543
2544 fi
2545
2546 if enabled asm; then
2547     as=${gas:=$as}
2548     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2549         $nogas "GNU assembler not found, install gas-preprocessor"
2550 fi
2551
2552 if check_func dlopen; then
2553     ldl=
2554 elif check_func dlopen -ldl; then
2555     ldl=-ldl
2556 fi
2557
2558 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2559 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2560
2561 check_func  fcntl
2562 check_func  fork
2563 check_func  getaddrinfo $network_extralibs
2564 check_func  gethrtime
2565 check_func  getrusage
2566 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2567 check_func  inet_aton $network_extralibs
2568 check_func  isatty
2569 check_func  ${malloc_prefix}memalign            && enable memalign
2570 check_func  mkstemp
2571 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2572 check_func  setrlimit
2573 check_func  strerror_r
2574 check_func_headers io.h setmode
2575 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2576 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2577 check_func_headers windows.h GetProcessTimes
2578 check_func_headers windows.h VirtualAlloc
2579
2580 check_header conio.h
2581 check_header dlfcn.h
2582 check_header dxva2api.h
2583 check_header malloc.h
2584 check_header poll.h
2585 check_header sys/mman.h
2586 check_header sys/resource.h
2587 check_header sys/select.h
2588 check_header termios.h
2589 check_header vdpau/vdpau.h
2590 check_header vdpau/vdpau_x11.h
2591 check_header X11/extensions/XvMClib.h
2592
2593 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2594
2595 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2596      enabled_any $need_memalign ; then
2597     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2598 fi
2599
2600 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2601 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2602
2603 # check for some common methods of building with pthread support
2604 # do this before the optional library checks as some of them require pthreads
2605 if ! disabled pthreads && ! enabled w32threads; then
2606     enable pthreads
2607     if check_func pthread_create; then
2608         :
2609     elif check_func pthread_create -pthread; then
2610         add_cflags -pthread
2611         add_extralibs -pthread
2612     elif check_func pthread_create -pthreads; then
2613         add_cflags -pthreads
2614         add_extralibs -pthreads
2615     elif check_func pthread_create -lpthreadGC2; then
2616         add_extralibs -lpthreadGC2
2617     elif ! check_lib pthread.h pthread_create -lpthread; then
2618         disable pthreads
2619     fi
2620 fi
2621
2622 for thread in $THREADS_LIST; do
2623     if enabled $thread; then
2624         test -n "$thread_type" &&
2625             die "ERROR: Only one thread type must be selected." ||
2626             thread_type="$thread"
2627     fi
2628 done
2629
2630 check_lib math.h sin -lm
2631 disabled vaapi || check_lib va/va.h vaInitialize -lva
2632
2633 check_mathfunc exp2
2634 check_mathfunc exp2f
2635 check_mathfunc llrint
2636 check_mathfunc llrintf
2637 check_mathfunc log2
2638 check_mathfunc log2f
2639 check_mathfunc lrint
2640 check_mathfunc lrintf
2641 check_mathfunc round
2642 check_mathfunc roundf
2643 check_mathfunc truncf
2644
2645 # these are off by default, so fail if requested and not available
2646 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2647 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2648                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2649                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2650 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2651 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2652 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2653 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2654 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2655 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2656 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2657 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2658                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2659 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2660                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2661 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2662 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2663 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2664 enabled libvpx     && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2665                         check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2666                       die "ERROR: libvpx version must be >=0.9.1"; }
2667 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2668                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2669                         die "ERROR: libx264 version must be >= 0.98."; }
2670 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2671 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2672
2673 # libdc1394 check
2674 if enabled libdc1394; then
2675     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2676         enable libdc1394_2; } ||
2677     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2678         enable libdc1394_1; } ||
2679     die "ERROR: No version of libdc1394 found "
2680 fi
2681
2682 SDL_CONFIG="${cross_prefix}sdl-config"
2683 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2684     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2685     sdl_libs=$("${SDL_CONFIG}" --libs)
2686     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2687     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2688     enable sdl &&
2689     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2690 fi
2691
2692 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2693
2694 if enabled network; then
2695     check_type "sys/types.h sys/socket.h" socklen_t
2696     check_type netdb.h "struct addrinfo"
2697     check_type netinet/in.h "struct ipv6_mreq"
2698     check_type netinet/in.h "struct sockaddr_in6"
2699     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2700     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2701     # Prefer arpa/inet.h over winsock2
2702     if check_header arpa/inet.h ; then
2703         check_func closesocket
2704     elif check_header winsock2.h ; then
2705         check_func_headers winsock2.h closesocket -lws2 && \
2706             network_extralibs="-lws2" || \
2707         { check_func_headers winsock2.h closesocket -lws2_32 && \
2708             network_extralibs="-lws2_32"; }
2709         check_type ws2tcpip.h socklen_t
2710         check_type ws2tcpip.h "struct addrinfo"
2711         check_type ws2tcpip.h "struct ipv6_mreq"
2712         check_type ws2tcpip.h "struct sockaddr_in6"
2713         check_type ws2tcpip.h "struct sockaddr_storage"
2714         check_struct winsock2.h "struct sockaddr" sa_len
2715     else
2716         disable network
2717     fi
2718 fi
2719
2720 check_header linux/videodev.h
2721 check_header linux/videodev2.h
2722 check_header sys/videoio.h
2723
2724 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2725 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2726 # w32api 3.12 had it defined wrong
2727 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2728
2729 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2730 { check_header dev/bktr/ioctl_meteor.h &&
2731   check_header dev/bktr/ioctl_bt848.h; } ||
2732 { check_header machine/ioctl_meteor.h &&
2733   check_header machine/ioctl_bt848.h; } ||
2734 { check_header dev/video/meteor/ioctl_meteor.h &&
2735   check_header dev/video/bktr/ioctl_bt848.h; } ||
2736 check_header dev/ic/bt8xx.h
2737
2738 check_header sys/soundcard.h
2739 check_header soundcard.h
2740
2741 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2742
2743 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2744
2745 enabled x11grab                         &&
2746 check_header X11/Xlib.h                 &&
2747 check_header X11/extensions/XShm.h      &&
2748 check_header X11/extensions/Xfixes.h    &&
2749 check_func XOpenDisplay -lX11           &&
2750 check_func XShmCreateImage -lX11 -lXext &&
2751 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2752
2753 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2754 check_cpp_condition \
2755     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2756     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2757       disable vdpau; }
2758 fi
2759
2760 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2761
2762 # add some useful compiler flags if supported
2763 check_cflags -Wdeclaration-after-statement
2764 check_cflags -Wall
2765 check_cflags -Wno-switch
2766 check_cflags -Wdisabled-optimization
2767 check_cflags -Wpointer-arith
2768 check_cflags -Wredundant-decls
2769 check_cflags -Wno-pointer-sign
2770 check_cflags -Wcast-qual
2771 check_cflags -Wwrite-strings
2772 check_cflags -Wtype-limits
2773 check_cflags -Wundef
2774 check_cflags -Wmissing-prototypes
2775 enabled extra_warnings && check_cflags -Winline
2776
2777 # add some linker flags
2778 check_ldflags -Wl,--warn-common
2779 check_ldflags -Wl,--as-needed
2780 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'
2781 check_ldflags -Wl,-Bsymbolic
2782
2783 echo "X{};" > $TMPV
2784 if test_ldflags -Wl,--version-script,$TMPV; then
2785     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2786     check_cc <<EOF && enable symver_asm_label
2787 void ff_foo(void) __asm__ ("av_foo@VERSION");
2788 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2789 EOF
2790     check_cc <<EOF && enable symver_gnu_asm
2791 __asm__(".symver ff_foo,av_foo@VERSION");
2792 void ff_foo(void) {}
2793 EOF
2794 fi
2795
2796 if enabled small; then
2797     add_cflags $size_cflags
2798     optimizations="small"
2799 elif enabled optimizations; then
2800     add_cflags $speed_cflags
2801 else
2802     add_cflags $noopt_cflags
2803 fi
2804 check_cflags -fno-math-errno
2805 check_cflags -fno-signed-zeros
2806
2807 if enabled icc; then
2808     # Just warnings, no remarks
2809     check_cflags -w1
2810     # -wd: Disable following warnings
2811     # 144, 167, 556: -Wno-pointer-sign
2812     # 10006: ignoring unknown option -fno-signed-zeros
2813     # 10156: ignoring option '-W'; no argument required
2814     check_cflags -wd144,167,556,10006,10156
2815     # 11030: Warning unknown option --as-needed
2816     # 10156: ignoring option '-export'; no argument required
2817     check_ldflags -wd10156,11030
2818     # Allow to compile with optimizations
2819     check_ldflags -march=$cpu
2820     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2821     enable ebp_available
2822 elif enabled ccc; then
2823     # disable some annoying warnings
2824     add_cflags -msg_disable cvtu32to64
2825     add_cflags -msg_disable embedcomment
2826     add_cflags -msg_disable needconstext
2827     add_cflags -msg_disable nomainieee
2828     add_cflags -msg_disable ptrmismatch1
2829     add_cflags -msg_disable unreachcode
2830 elif enabled gcc; then
2831     check_cflags -fno-tree-vectorize
2832     check_cflags -Werror=implicit-function-declaration
2833     check_cflags -Werror=missing-prototypes
2834 elif enabled clang; then
2835     check_cflags -Qunused-arguments
2836 elif enabled armcc; then
2837     # 2523: use of inline assembler is deprecated
2838     add_cflags -Wrvct,--diag_suppress=2523
2839     add_cflags -Wrvct,--diag_suppress=1207
2840 elif enabled tms470; then
2841     add_cflags -pds=824 -pds=837
2842 fi
2843
2844 enabled_any $THREADS_LIST      && enable threads
2845
2846 check_deps $CONFIG_LIST       \
2847            $CONFIG_EXTRA      \
2848            $HAVE_LIST         \
2849            $DECODER_LIST      \
2850            $ENCODER_LIST      \
2851            $HWACCEL_LIST      \
2852            $PARSER_LIST       \
2853            $BSF_LIST          \
2854            $DEMUXER_LIST      \
2855            $MUXER_LIST        \
2856            $FILTER_LIST       \
2857            $INDEV_LIST        \
2858            $OUTDEV_LIST       \
2859            $PROTOCOL_LIST     \
2860            $ACODEC_TESTS      \
2861            $VCODEC_TESTS      \
2862            $LAVF_TESTS        \
2863            $LAVFI_TESTS       \
2864            $SEEK_TESTS        \
2865
2866 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2867
2868 echo "install prefix            $prefix"
2869 echo "source path               $source_path"
2870 echo "C compiler                $cc"
2871 echo "ARCH                      $arch ($cpu)"
2872 if test "$build_suffix" != ""; then
2873     echo "build suffix              $build_suffix"
2874 fi
2875 if test "$extra_version" != ""; then
2876     echo "version string suffix     $extra_version"
2877 fi
2878 echo "big-endian                ${bigendian-no}"
2879 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2880 if enabled x86; then
2881     echo "yasm                      ${yasm-no}"
2882     echo "MMX enabled               ${mmx-no}"
2883     echo "MMX2 enabled              ${mmx2-no}"
2884     echo "3DNow! enabled            ${amd3dnow-no}"
2885     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2886     echo "SSE enabled               ${sse-no}"
2887     echo "SSSE3 enabled             ${ssse3-no}"
2888     echo "CMOV enabled              ${cmov-no}"
2889     echo "CMOV is fast              ${fast_cmov-no}"
2890     echo "EBX available             ${ebx_available-no}"
2891     echo "EBP available             ${ebp_available-no}"
2892     echo "10 operands supported     ${ten_operands-no}"
2893 fi
2894 if enabled arm; then
2895     echo "ARMv5TE enabled           ${armv5te-no}"
2896     echo "ARMv6 enabled             ${armv6-no}"
2897     echo "ARMv6T2 enabled           ${armv6t2-no}"
2898     echo "ARM VFP enabled           ${armvfp-no}"
2899     echo "IWMMXT enabled            ${iwmmxt-no}"
2900     echo "NEON enabled              ${neon-no}"
2901 fi
2902 if enabled mips; then
2903     echo "MMI enabled               ${mmi-no}"
2904 fi
2905 if enabled ppc; then
2906     echo "AltiVec enabled           ${altivec-no}"
2907     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2908     echo "dcbzl available           ${dcbzl-no}"
2909 fi
2910 if enabled sparc; then
2911     echo "VIS enabled               ${vis-no}"
2912 fi
2913 echo "debug symbols             ${debug-no}"
2914 echo "strip symbols             ${stripping-no}"
2915 echo "optimizations             ${optimizations-no}"
2916 echo "static                    ${static-no}"
2917 echo "shared                    ${shared-no}"
2918 echo "postprocessing support    ${postproc-no}"
2919 echo "new filter support        ${avfilter-no}"
2920 echo "filters using lavformat   ${avfilter_lavf-no}"
2921 echo "network support           ${network-no}"
2922 echo "threading support         ${thread_type-no}"
2923 echo "SDL support               ${sdl-no}"
2924 echo "Sun medialib support      ${mlib-no}"
2925 echo "AVISynth enabled          ${avisynth-no}"
2926 echo "libdc1394 support         ${libdc1394-no}"
2927 echo "libdirac enabled          ${libdirac-no}"
2928 echo "libfaac enabled           ${libfaac-no}"
2929 echo "libgsm enabled            ${libgsm-no}"
2930 echo "libmp3lame enabled        ${libmp3lame-no}"
2931 echo "libnut enabled            ${libnut-no}"
2932 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2933 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2934 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2935 echo "librtmp enabled           ${librtmp-no}"
2936 echo "libschroedinger enabled   ${libschroedinger-no}"
2937 echo "libspeex enabled          ${libspeex-no}"
2938 echo "libtheora enabled         ${libtheora-no}"
2939 echo "libvorbis enabled         ${libvorbis-no}"
2940 echo "libvpx enabled            ${libvpx-no}"
2941 echo "libx264 enabled           ${libx264-no}"
2942 echo "libxvid enabled           ${libxvid-no}"
2943 echo "zlib enabled              ${zlib-no}"
2944 echo "bzlib enabled             ${bzlib-no}"
2945 echo
2946
2947 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2948     echo "Enabled ${type}s:"
2949     eval list=\$$(toupper $type)_LIST
2950     print_enabled '_*' $list | sort | pr -3 -t
2951     echo
2952 done
2953
2954 license="LGPL version 2.1 or later"
2955 if enabled nonfree; then
2956     license="nonfree and unredistributable"
2957 elif enabled gplv3; then
2958     license="GPL version 3 or later"
2959 elif enabled lgplv3; then
2960     license="LGPL version 3 or later"
2961 elif enabled gpl; then
2962     license="GPL version 2 or later"
2963 fi
2964
2965 echo "License: $license"
2966
2967 echo "Creating config.mak and config.h..."
2968
2969 # build tree in object directory if source path is different from current one
2970 if enabled source_path_used; then
2971     DIRS="
2972         doc
2973         libavcodec
2974         libavcodec/$arch
2975         libavcore
2976         libavdevice
2977         libavfilter
2978         libavformat
2979         libavutil
2980         libavutil/$arch
2981         libpostproc
2982         libswscale
2983         libswscale/$arch
2984         tests
2985         tools
2986     "
2987     FILES="
2988         Makefile
2989         common.mak
2990         subdir.mak
2991         doc/texi2pod.pl
2992         libavcodec/Makefile
2993         libavcodec/${arch}/Makefile
2994         libavcore/Makefile
2995         libavdevice/Makefile
2996         libavfilter/Makefile
2997         libavformat/Makefile
2998         libavutil/Makefile
2999         libpostproc/Makefile
3000         libswscale/Makefile
3001     "
3002     map 'mkdir -p $v' $DIRS;
3003     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3004 fi
3005
3006 enabled stripping || strip="echo skipping strip"
3007
3008 cat > config.mak <<EOF
3009 # Automatically generated by configure - do not modify!
3010 ifndef FFMPEG_CONFIG_MAK
3011 FFMPEG_CONFIG_MAK=1
3012 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3013 prefix=$prefix
3014 LIBDIR=\$(DESTDIR)$libdir
3015 SHLIBDIR=\$(DESTDIR)$shlibdir
3016 INCDIR=\$(DESTDIR)$incdir
3017 BINDIR=\$(DESTDIR)$bindir
3018 DATADIR=\$(DESTDIR)$datadir
3019 MANDIR=\$(DESTDIR)$mandir
3020 SRC_PATH="$source_path"
3021 SRC_PATH_BARE=$source_path
3022 BUILD_ROOT="$PWD"
3023 ARCH=$arch
3024 CC=$cc
3025 AS=$as
3026 LD=$ld
3027 DEPCC=$dep_cc
3028 YASM=$yasmexe
3029 YASMDEP=$yasmexe
3030 AR=$ar
3031 RANLIB=$ranlib
3032 CP=cp -p
3033 LN_S=$ln_s
3034 STRIP=$strip
3035 CPPFLAGS=$CPPFLAGS
3036 CFLAGS=$CFLAGS
3037 ASFLAGS=$ASFLAGS
3038 CC_O=$CC_O
3039 LDFLAGS=$LDFLAGS
3040 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3041 SHFLAGS=$SHFLAGS
3042 YASMFLAGS=$YASMFLAGS
3043 BUILDSUF=$build_suffix
3044 FULLNAME=$FULLNAME
3045 LIBPREF=$LIBPREF
3046 LIBSUF=$LIBSUF
3047 LIBNAME=$LIBNAME
3048 SLIBPREF=$SLIBPREF
3049 SLIBSUF=$SLIBSUF
3050 EXESUF=$EXESUF
3051 EXTRA_VERSION=$extra_version
3052 DEPFLAGS=$DEPFLAGS
3053 CCDEP=$CCDEP
3054 ASDEP=$ASDEP
3055 CC_DEPFLAGS=$CC_DEPFLAGS
3056 AS_DEPFLAGS=$AS_DEPFLAGS
3057 HOSTCC=$host_cc
3058 HOSTCFLAGS=$host_cflags
3059 HOSTEXESUF=$HOSTEXESUF
3060 HOSTLDFLAGS=$host_ldflags
3061 HOSTLIBS=$host_libs
3062 TARGET_EXEC=$target_exec
3063 TARGET_PATH=$target_path
3064 SDL_LIBS=$sdl_libs
3065 SDL_CFLAGS=$sdl_cflags
3066 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3067 EXTRALIBS=$extralibs
3068 INSTALL=install
3069 LIBTARGET=${LIBTARGET}
3070 SLIBNAME=${SLIBNAME}
3071 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3072 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3073 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3074 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3075 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3076 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3077 SAMPLES=$samples
3078 EOF
3079
3080 get_version(){
3081     name=$1
3082     file=$source_path/$2
3083     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3084     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3085     lcname=$(tolower $name)
3086     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3087     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3088 }
3089
3090 get_version LIBSWSCALE  libswscale/swscale.h
3091 get_version LIBPOSTPROC libpostproc/postprocess.h
3092 get_version LIBAVCODEC  libavcodec/avcodec.h
3093 get_version LIBAVCORE   libavcore/avcore.h
3094 get_version LIBAVDEVICE libavdevice/avdevice.h
3095 get_version LIBAVFORMAT libavformat/avformat.h
3096 get_version LIBAVUTIL   libavutil/avutil.h
3097 get_version LIBAVFILTER libavfilter/avfilter.h
3098
3099 cat > $TMPH <<EOF
3100 /* Automatically generated by configure - do not modify! */
3101 #ifndef FFMPEG_CONFIG_H
3102 #define FFMPEG_CONFIG_H
3103 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3104 #define FFMPEG_LICENSE "$(c_escape $license)"
3105 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3106 #define CC_TYPE "$cc_type"
3107 #define CC_VERSION $cc_version
3108 #define restrict $_restrict
3109 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3110 #define EXTERN_PREFIX "${extern_prefix}"
3111 #define EXTERN_ASM ${extern_prefix}
3112 EOF
3113
3114 test -n "$malloc_prefix" &&
3115     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3116
3117 if enabled small || disabled optimizations; then
3118     echo "#undef  av_always_inline"  >> $TMPH
3119     echo "#define av_always_inline"  >> $TMPH
3120 fi
3121
3122 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3123 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3124 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3125                                       $CONFIG_EXTRA      \
3126                                       $DECODER_LIST      \
3127                                       $ENCODER_LIST      \
3128                                       $HWACCEL_LIST      \
3129                                       $PARSER_LIST       \
3130                                       $BSF_LIST          \
3131                                       $DEMUXER_LIST      \
3132                                       $MUXER_LIST        \
3133                                       $FILTER_LIST       \
3134                                       $PROTOCOL_LIST     \
3135                                       $INDEV_LIST        \
3136                                       $OUTDEV_LIST       \
3137
3138 cat >>config.mak <<EOF
3139 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3140 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3141 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3142 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3143 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3144 EOF
3145
3146 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3147 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3148
3149 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3150 cp_if_changed $TMPH config.h
3151 touch .config
3152
3153 cat > $TMPH <<EOF
3154 /* Generated by ffconf */
3155 #ifndef AVUTIL_AVCONFIG_H
3156 #define AVUTIL_AVCONFIG_H
3157 EOF
3158
3159 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3160
3161 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3162
3163 cp_if_changed $TMPH libavutil/avconfig.h
3164
3165 test -n "$WARNINGS" && printf "\n$WARNINGS"
3166
3167 # build pkg-config files
3168
3169 pkgconfig_generate(){
3170 name=$1
3171 shortname=${name#lib}${build_suffix}
3172 comment=$2
3173 version=$3
3174 libs=$4
3175 requires=$5
3176 enabled $shortname || return
3177 cat <<EOF > $name/$name.pc
3178 prefix=$prefix
3179 exec_prefix=\${prefix}
3180 libdir=$libdir
3181 includedir=$incdir
3182
3183 Name: $name
3184 Description: $comment
3185 Version: $version
3186 Requires: $(enabled shared || echo $requires)
3187 Requires.private: $(enabled shared && echo $requires)
3188 Conflicts:
3189 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3190 Libs.private: $(enabled shared && echo $libs)
3191 Cflags: -I\${includedir}
3192 EOF
3193 cat <<EOF > $name/$name-uninstalled.pc
3194 prefix=
3195 exec_prefix=
3196 libdir=\${pcfiledir}
3197 includedir=${source_path}
3198
3199 Name: $name
3200 Description: $comment
3201 Version: $version
3202 Requires: $requires
3203 Conflicts:
3204 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3205 Cflags: -I\${includedir}
3206 EOF
3207 }
3208
3209 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3210 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3211 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3212 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3213 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3214 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3215 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3216 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"