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

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