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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avcore         disable libavcore build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable GPLed postprocessing support [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --disable-vaapi          disable VAAPI code
 112   --disable-vdpau          disable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libgsm          enable GSM support via libgsm [no]
 172   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 173   --enable-libnut          enable NUT (de)muxing via libnut,
 174                            native (de)muxer exists [no]
 175   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 176   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 177   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 178   --enable-libspeex        enable Speex decoding via libspeex [no]
 179   --enable-libtheora       enable Theora encoding via libtheora [no]
 180   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 181                            native implementation exists [no]
 182   --enable-libvpx          enable VP8 support via libvpx [no]
 183   --enable-libx264         enable H.264 encoding via x264 [no]
 184   --enable-libxavs         enable AVS encoding via xavs [no]
 185   --enable-libxvid         enable Xvid encoding via xvidcore,
 186                            native MPEG-4/Xvid encoder exists [no]
 187   --enable-mlib            enable Sun medialib [no]
 188   --enable-zlib            enable zlib [autodetect]
 189
 190 Advanced options (experts only):
 191   --source-path=PATH       path to source code [$source_path]
 192   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 193   --enable-cross-compile   assume a cross-compiler is used
 194   --sysroot=PATH           root of cross-build tree
 195   --sysinclude=PATH        location of cross-build system headers
 196   --target-os=OS           compiler targets OS [$target_os]
 197   --target-exec=CMD        command to run executables on target
 198   --target-path=DIR        path to view of build directory on target
 199   --nm=NM                  use nm tool
 200   --ar=AR                  use archive tool AR [$ar_default]
 201   --as=AS                  use assembler AS [$as_default]
 202   --cc=CC                  use C compiler CC [$cc_default]
 203   --ld=LD                  use linker LD
 204   --host-cc=HOSTCC         use host C compiler HOSTCC
 205   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 206   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 207   --host-libs=HLIBS        use libs HLIBS when linking for host
 208   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 209   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 210   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 211   --extra-version=STRING   version string suffix []
 212   --build-suffix=SUFFIX    library name suffix []
 213   --arch=ARCH              select architecture [$arch]
 214   --cpu=CPU                select the minimum required CPU (affects
 215                            instruction selection, may crash on older CPUs)
 216   --disable-asm            disable all assembler optimizations
 217   --disable-altivec        disable AltiVec optimizations
 218   --disable-amd3dnow       disable 3DNow! optimizations
 219   --disable-amd3dnowext    disable 3DNow! extended optimizations
 220   --disable-mmx            disable MMX optimizations
 221   --disable-mmx2           disable MMX2 optimizations
 222   --disable-sse            disable SSE optimizations
 223   --disable-ssse3          disable SSSE3 optimizations
 224   --disable-armv5te        disable armv5te optimizations
 225   --disable-armv6          disable armv6 optimizations
 226   --disable-armv6t2        disable armv6t2 optimizations
 227   --disable-armvfp         disable ARM VFP optimizations
 228   --disable-iwmmxt         disable iwmmxt optimizations
 229   --disable-mmi            disable MMI optimizations
 230   --disable-neon           disable neon optimizations
 231   --disable-vis            disable VIS optimizations
 232   --disable-yasm           disable use of yasm assembler
 233   --enable-pic             build position-independent code
 234   --malloc-prefix=PFX      prefix malloc and related names with PFX
 235   --enable-sram            allow use of on-chip SRAM
 236
 237 Developer options (useful when working on FFmpeg itself):
 238   --disable-debug          disable debugging symbols
 239   --enable-debug=LEVEL     set the debug level [$debuglevel]
 240   --disable-optimizations  disable compiler optimizations
 241   --enable-extra-warnings  enable more compiler warnings
 242   --disable-stripping      disable stripping of executables and shared libraries
 243   --samples=PATH           location of test samples for FATE
 244
 245 NOTE: Object files are built at the place where configure is launched.
 246 EOF
 247   exit 0
 248 }
 249
 250 quotes='""'
 251
 252 log(){
 253     echo "$@" >> $logfile
 254 }
 255
 256 log_file(){
 257     log BEGIN $1
 258     pr -n -t $1 >> $logfile
 259     log END $1
 260 }
 261
 262 echolog(){
 263     log "$@"
 264     echo "$@"
 265 }
 266
 267 warn(){
 268     log "WARNING: $*"
 269     WARNINGS="${WARNINGS}WARNING: $*\n"
 270 }
 271
 272 die(){
 273     echolog "$@"
 274     cat <<EOF
 275
 276 If you think configure made a mistake, make sure you are using the latest
 277 version from SVN.  If the latest version fails, report the problem to the
 278 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 279 EOF
 280     if disabled logging; then
 281         cat <<EOF
 282 Rerun configure with logging enabled (do not use --disable-logging), and
 283 include the log this produces with your report.
 284 EOF
 285     else
 286 cat <<EOF
 287 Include the log file "$logfile" produced by configure as this will help
 288 solving the problem.
 289 EOF
 290     fi
 291     exit 1
 292 }
 293
 294 # Avoid locale weirdness, besides we really just want to translate ASCII.
 295 toupper(){
 296     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 297 }
 298
 299 tolower(){
 300     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 301 }
 302
 303 c_escape(){
 304     echo "$*" | sed 's/["\\]/\\\0/g'
 305 }
 306
 307 sh_quote(){
 308     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 309     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 310     echo "$v"
 311 }
 312
 313 filter(){
 314     pat=$1
 315     shift
 316     for v; do
 317         eval "case $v in $pat) echo $v ;; esac"
 318     done
 319 }
 320
 321 map(){
 322     m=$1
 323     shift
 324     for v; do eval $m; done
 325 }
 326
 327 set_all(){
 328     value=$1
 329     shift
 330     for var in $*; do
 331         eval $var=$value
 332     done
 333 }
 334
 335 set_weak(){
 336     value=$1
 337     shift
 338     for var; do
 339         eval : \${$var:=$value}
 340     done
 341 }
 342
 343 pushvar(){
 344     for var in $*; do
 345         eval level=\${${var}_level:=0}
 346         eval ${var}_${level}="\$$var"
 347         eval ${var}_level=$(($level+1))
 348     done
 349 }
 350
 351 popvar(){
 352     for var in $*; do
 353         eval level=\${${var}_level:-0}
 354         test $level = 0 && continue
 355         eval level=$(($level-1))
 356         eval $var="\${${var}_${level}}"
 357         eval ${var}_level=$level
 358         eval unset ${var}_${level}
 359     done
 360 }
 361
 362 enable(){
 363     set_all yes $*
 364 }
 365
 366 disable(){
 367     set_all no $*
 368 }
 369
 370 enable_weak(){
 371     set_weak yes $*
 372 }
 373
 374 disable_weak(){
 375     set_weak no $*
 376 }
 377
 378 enable_safe(){
 379     for var; do
 380         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 381     done
 382 }
 383
 384 disable_safe(){
 385     for var; do
 386         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 387     done
 388 }
 389
 390 do_enable_deep(){
 391     for var; do
 392         enabled $var && continue
 393         eval sel="\$${var}_select"
 394         eval sgs="\$${var}_suggest"
 395         pushvar var sgs
 396         enable_deep $sel
 397         popvar sgs
 398         enable_deep_weak $sgs
 399         popvar var
 400     done
 401 }
 402
 403 enable_deep(){
 404     do_enable_deep $*
 405     enable $*
 406 }
 407
 408 enable_deep_weak(){
 409     do_enable_deep $*
 410     enable_weak $*
 411 }
 412
 413 enabled(){
 414     test "${1#!}" = "$1" && op== || op=!=
 415     eval test "x\$${1#!}" $op "xyes"
 416 }
 417
 418 disabled(){
 419     test "${1#!}" = "$1" && op== || op=!=
 420     eval test "x\$${1#!}" $op "xno"
 421 }
 422
 423 enabled_all(){
 424     for opt; do
 425         enabled $opt || return 1
 426     done
 427 }
 428
 429 disabled_all(){
 430     for opt; do
 431         disabled $opt || return 1
 432     done
 433 }
 434
 435 enabled_any(){
 436     for opt; do
 437         enabled $opt && return 0
 438     done
 439 }
 440
 441 disabled_any(){
 442     for opt; do
 443         disabled $opt && return 0
 444     done
 445     return 1
 446 }
 447
 448 set_default(){
 449     for opt; do
 450         eval : \${$opt:=\$${opt}_default}
 451     done
 452 }
 453
 454 is_in(){
 455     value=$1
 456     shift
 457     for var in $*; do
 458         [ $var = $value ] && return 0
 459     done
 460     return 1
 461 }
 462
 463 check_deps(){
 464     for cfg; do
 465         cfg="${cfg#!}"
 466         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 467         disabled ${cfg}_checking && continue
 468         enable ${cfg}_checking
 469
 470         eval dep_all="\$${cfg}_deps"
 471         eval dep_any="\$${cfg}_deps_any"
 472         eval dep_sel="\$${cfg}_select"
 473         eval dep_sgs="\$${cfg}_suggest"
 474         eval dep_ifa="\$${cfg}_if"
 475         eval dep_ifn="\$${cfg}_if_any"
 476
 477         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 478         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 479         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 480
 481         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 482         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 483         enabled_all  $dep_all || disable $cfg
 484         enabled_any  $dep_any || disable $cfg
 485         disabled_any $dep_sel && disable $cfg
 486
 487         if enabled $cfg; then
 488             eval dep_extralibs="\$${cfg}_extralibs"
 489             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 490             enable_deep $dep_sel
 491             enable_deep_weak $dep_sgs
 492         fi
 493
 494         disable ${cfg}_checking
 495     done
 496 }
 497
 498 print_config(){
 499     pfx=$1
 500     header=$2
 501     makefile=$3
 502     shift 3
 503     for cfg; do
 504         ucname="$(toupper $cfg)"
 505         if enabled $cfg; then
 506             echo "#define ${pfx}${ucname} 1" >> $header
 507             echo "${pfx}${ucname}=yes" >> $makefile
 508         else
 509             echo "#define ${pfx}${ucname} 0" >> $header
 510             echo "!${pfx}${ucname}=yes" >> $makefile
 511         fi
 512     done
 513 }
 514
 515 print_enabled(){
 516     test "$1" = -n && end=" " && shift || end="\n"
 517     suf=$1
 518     shift
 519     for v; do
 520         enabled $v && printf "%s$end" ${v%$suf};
 521     done
 522 }
 523
 524 append(){
 525     var=$1
 526     shift
 527     eval "$var=\"\$$var $*\""
 528 }
 529
 530 prepend(){
 531     var=$1
 532     shift
 533     eval "$var=\"$* \$$var\""
 534 }
 535
 536 add_cppflags(){
 537     append CPPFLAGS $($filter_cppflags "$@")
 538 }
 539
 540 add_cflags(){
 541     append CFLAGS $($filter_cflags "$@")
 542 }
 543
 544 add_asflags(){
 545     append ASFLAGS $($filter_asflags "$@")
 546 }
 547
 548 add_ldflags(){
 549     append LDFLAGS "$@"
 550 }
 551
 552 add_extralibs(){
 553     prepend extralibs "$@"
 554 }
 555
 556 check_cmd(){
 557     log "$@"
 558     "$@" >> $logfile 2>&1
 559 }
 560
 561 check_cc(){
 562     log check_cc "$@"
 563     cat > $TMPC
 564     log_file $TMPC
 565     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 566 }
 567
 568 check_cpp(){
 569     log check_cpp "$@"
 570     cat > $TMPC
 571     log_file $TMPC
 572     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 573 }
 574
 575 check_as(){
 576     log check_as "$@"
 577     cat > $TMPC
 578     log_file $TMPC
 579     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 580 }
 581
 582 check_asm(){
 583     log check_asm "$@"
 584     name="$1"
 585     code="$2"
 586     shift 2
 587     disable $name
 588     check_as "$@" <<EOF && enable $name
 589 void foo(void){ __asm__ volatile($code); }
 590 EOF
 591 }
 592
 593 check_yasm(){
 594     log check_yasm "$@"
 595     echo "$1" > $TMPS
 596     log_file $TMPS
 597     shift 1
 598     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 599 }
 600
 601 check_ld(){
 602     log check_ld "$@"
 603     flags=''
 604     libs=''
 605     for f; do
 606         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 607     done
 608     check_cc $($filter_cflags $flags) || return
 609     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 610 }
 611
 612 check_cppflags(){
 613     log check_cppflags "$@"
 614     set -- $($filter_cppflags "$@")
 615     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 616 int x;
 617 EOF
 618 }
 619
 620 check_cflags(){
 621     log check_cflags "$@"
 622     set -- $($filter_cflags "$@")
 623     check_cc "$@" <<EOF && append CFLAGS "$@"
 624 int x;
 625 EOF
 626 }
 627
 628 test_ldflags(){
 629     log test_ldflags "$@"
 630     check_ld "$@" <<EOF
 631 int main(void){ return 0; }
 632 EOF
 633 }
 634
 635 check_ldflags(){
 636     log check_ldflags "$@"
 637     test_ldflags "$@" && add_ldflags "$@"
 638 }
 639
 640 check_header(){
 641     log check_header "$@"
 642     header=$1
 643     shift
 644     disable_safe $header
 645     check_cpp "$@" <<EOF && enable_safe $header
 646 #include <$header>
 647 int x;
 648 EOF
 649 }
 650
 651 check_func(){
 652     log check_func "$@"
 653     func=$1
 654     shift
 655     disable $func
 656     check_ld "$@" <<EOF && enable $func
 657 extern int $func();
 658 int main(void){ $func(); }
 659 EOF
 660 }
 661
 662 check_mathfunc(){
 663     log check_mathfunc "$@"
 664     func=$1
 665     shift
 666     disable $func
 667     check_ld "$@" <<EOF && enable $func
 668 #include <math.h>
 669 float foo(float f) { return $func(f); }
 670 int main(void){ return 0; }
 671 EOF
 672 }
 673
 674 check_func_headers(){
 675     log check_func_headers "$@"
 676     headers=$1
 677     func=$2
 678     shift 2
 679     disable $func
 680     incs=""
 681     for hdr in $headers; do
 682         incs="$incs
 683 #include <$hdr>"
 684     done
 685     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 686 $incs
 687 int main(int argc, char **argv){
 688     return (long) $func;
 689 }
 690 EOF
 691 }
 692
 693 check_cpp_condition(){
 694     log check_cpp_condition "$@"
 695     header=$1
 696     condition=$2
 697     shift 2
 698     check_cpp $($filter_cppflags "$@") <<EOF
 699 #include <$header>
 700 #if !($condition)
 701 #error "unsatisfied condition: $condition"
 702 #endif
 703 EOF
 704 }
 705
 706 check_lib(){
 707     log check_lib "$@"
 708     header="$1"
 709     func="$2"
 710     shift 2
 711     check_header $header && check_func $func "$@" && add_extralibs "$@"
 712 }
 713
 714 check_lib2(){
 715     log check_lib2 "$@"
 716     headers="$1"
 717     func="$2"
 718     shift 2
 719     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 720 }
 721
 722 check_exec(){
 723     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 724 }
 725
 726 check_exec_crash(){
 727     code=$(cat)
 728
 729     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 730     # are safe but may not be available everywhere.  Thus we use
 731     # raise(SIGTERM) instead.  The check is run in a subshell so we
 732     # can redirect the "Terminated" message from the shell.  SIGBUS
 733     # is not defined by standard C so it is used conditionally.
 734
 735     (check_exec "$@") >> $logfile 2>&1 <<EOF
 736 #include <signal.h>
 737 static void sighandler(int sig){
 738     raise(SIGTERM);
 739 }
 740 int main(void){
 741     signal(SIGILL, sighandler);
 742     signal(SIGFPE, sighandler);
 743     signal(SIGSEGV, sighandler);
 744 #ifdef SIGBUS
 745     signal(SIGBUS, sighandler);
 746 #endif
 747     { $code }
 748 }
 749 EOF
 750 }
 751
 752 check_type(){
 753     log check_type "$@"
 754     headers=$1
 755     type=$2
 756     shift 2
 757     disable_safe "$type"
 758     incs=""
 759     for hdr in $headers; do
 760         incs="$incs
 761 #include <$hdr>"
 762     done
 763     check_cc "$@" <<EOF && enable_safe "$type"
 764 $incs
 765 $type v;
 766 EOF
 767 }
 768
 769 check_struct(){
 770     log check_type "$@"
 771     headers=$1
 772     struct=$2
 773     member=$3
 774     shift 3
 775     disable_safe "${struct}_${member}"
 776     incs=""
 777     for hdr in $headers; do
 778         incs="$incs
 779 #include <$hdr>"
 780     done
 781     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 782 $incs
 783 const void *p = &(($struct *)0)->$member;
 784 EOF
 785 }
 786
 787 require(){
 788     name="$1"
 789     header="$2"
 790     func="$3"
 791     shift 3
 792     check_lib $header $func "$@" || die "ERROR: $name not found"
 793 }
 794
 795 require2(){
 796     name="$1"
 797     headers="$2"
 798     func="$3"
 799     shift 3
 800     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 801 }
 802
 803 check_host_cc(){
 804     log check_host_cc "$@"
 805     cat > $TMPC
 806     log_file $TMPC
 807     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 808 }
 809
 810 check_host_cflags(){
 811     log check_host_cflags "$@"
 812     check_host_cc "$@" <<EOF && append host_cflags "$@"
 813 int x;
 814 EOF
 815 }
 816
 817 apply(){
 818     file=$1
 819     shift
 820     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 821 }
 822
 823 cp_if_changed(){
 824     cmp -s "$1" "$2" &&
 825         echo "$2 is unchanged" ||
 826         cp -f "$1" "$2"
 827 }
 828
 829 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 830 # system-dependent things.
 831
 832 COMPONENT_LIST="
 833     bsfs
 834     decoders
 835     demuxers
 836     encoders
 837     filters
 838     hwaccels
 839     indevs
 840     muxers
 841     outdevs
 842     parsers
 843     protocols
 844 "
 845
 846 CONFIG_LIST="
 847     $COMPONENT_LIST
 848     aandct
 849     avcodec
 850     avcore
 851     avdevice
 852     avfilter
 853     avformat
 854     avisynth
 855     bzlib
 856     dct
 857     doc
 858     dwt
 859     dxva2
 860     fastdiv
 861     ffmpeg
 862     ffplay
 863     ffprobe
 864     ffserver
 865     fft
 866     golomb
 867     gpl
 868     gray
 869     h264dsp
 870     h264pred
 871     hardcoded_tables
 872     huffman
 873     libdc1394
 874     libdirac
 875     libfaac
 876     libgsm
 877     libmp3lame
 878     libnut
 879     libopencore_amrnb
 880     libopencore_amrwb
 881     libopenjpeg
 882     librtmp
 883     libschroedinger
 884     libspeex
 885     libtheora
 886     libvorbis
 887     libvpx
 888     libx264
 889     libxavs
 890     libxvid
 891     lpc
 892     lsp
 893     mdct
 894     memalign_hack
 895     mlib
 896     mpegaudio_hp
 897     network
 898     nonfree
 899     pic
 900     postproc
 901     rdft
 902     runtime_cpudetect
 903     shared
 904     small
 905     sram
 906     static
 907     swscale
 908     swscale_alpha
 909     vaapi
 910     vdpau
 911     version3
 912     x11grab
 913     zlib
 914 "
 915
 916 THREADS_LIST='
 917     pthreads
 918     w32threads
 919 '
 920
 921 ARCH_LIST='
 922     alpha
 923     arm
 924     avr32
 925     avr32_ap
 926     avr32_uc
 927     bfin
 928     ia64
 929     m68k
 930     mips
 931     mips64
 932     parisc
 933     ppc
 934     ppc64
 935     s390
 936     sh4
 937     sparc
 938     sparc64
 939     tomi
 940     x86
 941     x86_32
 942     x86_64
 943 '
 944
 945 ARCH_EXT_LIST='
 946     altivec
 947     amd3dnow
 948     amd3dnowext
 949     armv5te
 950     armv6
 951     armv6t2
 952     armvfp
 953     iwmmxt
 954     mmi
 955     mmx
 956     mmx2
 957     neon
 958     ppc4xx
 959     sse
 960     ssse3
 961     vis
 962 '
 963
 964 HAVE_LIST_PUB='
 965     bigendian
 966     fast_unaligned
 967 '
 968
 969 HAVE_LIST="
 970     $ARCH_EXT_LIST
 971     $HAVE_LIST_PUB
 972     $THREADS_LIST
 973     alsa_asoundlib_h
 974     altivec_h
 975     arpa_inet_h
 976     attribute_may_alias
 977     attribute_packed
 978     bswap
 979     closesocket
 980     cmov
 981     conio_h
 982     dcbzl
 983     dev_bktr_ioctl_bt848_h
 984     dev_bktr_ioctl_meteor_h
 985     dev_ic_bt8xx_h
 986     dev_video_meteor_ioctl_meteor_h
 987     dev_video_bktr_ioctl_bt848_h
 988     dlfcn_h
 989     dlopen
 990     dos_paths
 991     ebp_available
 992     ebx_available
 993     exp2
 994     exp2f
 995     fast_64bit
 996     fast_clz
 997     fast_cmov
 998     fcntl
 999     fork
1000     getaddrinfo
1001     gethrtime
1002     GetProcessMemoryInfo
1003     GetProcessTimes
1004     getrusage
1005     gnu_as
1006     struct_rusage_ru_maxrss
1007     ibm_asm
1008     inet_aton
1009     inline_asm
1010     isatty
1011     ldbrx
1012     libdc1394_1
1013     libdc1394_2
1014     llrint
1015     llrintf
1016     local_aligned_16
1017     local_aligned_8
1018     log2
1019     log2f
1020     loongson
1021     lrint
1022     lrintf
1023     lzo1x_999_compress
1024     machine_ioctl_bt848_h
1025     machine_ioctl_meteor_h
1026     malloc_h
1027     memalign
1028     mkstemp
1029     pld
1030     posix_memalign
1031     round
1032     roundf
1033     sdl
1034     sdl_video_size
1035     setmode
1036     socklen_t
1037     soundcard_h
1038     poll_h
1039     setrlimit
1040     strerror_r
1041     struct_addrinfo
1042     struct_ipv6_mreq
1043     struct_sockaddr_in6
1044     struct_sockaddr_sa_len
1045     struct_sockaddr_storage
1046     symver
1047     symver_gnu_asm
1048     symver_asm_label
1049     sys_mman_h
1050     sys_resource_h
1051     sys_select_h
1052     sys_soundcard_h
1053     sys_videoio_h
1054     ten_operands
1055     termios_h
1056     threads
1057     truncf
1058     vfp_args
1059     VirtualAlloc
1060     winsock2_h
1061     xform_asm
1062     yasm
1063 "
1064
1065 # options emitted with CONFIG_ prefix but not available on command line
1066 CONFIG_EXTRA="
1067     avutil
1068     gplv3
1069     lgplv3
1070 "
1071
1072 CMDLINE_SELECT="
1073     $ARCH_EXT_LIST
1074     $CONFIG_LIST
1075     $THREADS_LIST
1076     asm
1077     cross_compile
1078     debug
1079     extra_warnings
1080     logging
1081     optimizations
1082     stripping
1083     yasm
1084 "
1085
1086 PATHS_LIST='
1087     bindir
1088     datadir
1089     incdir
1090     libdir
1091     mandir
1092     prefix
1093     shlibdir
1094 '
1095
1096 CMDLINE_SET="
1097     $PATHS_LIST
1098     ar
1099     arch
1100     as
1101     build_suffix
1102     cc
1103     cpu
1104     cross_prefix
1105     dep_cc
1106     extra_version
1107     host_cc
1108     host_cflags
1109     host_ldflags
1110     host_libs
1111     host_os
1112     ld
1113     logfile
1114     malloc_prefix
1115     nm
1116     samples
1117     source_path
1118     strip
1119     sysinclude
1120     sysroot
1121     target_exec
1122     target_os
1123     target_path
1124 "
1125
1126 CMDLINE_APPEND="
1127     extra_cflags
1128 "
1129
1130 # code dependency declarations
1131
1132 # architecture extensions
1133
1134 armv5te_deps="arm"
1135 armv6_deps="arm"
1136 armv6t2_deps="arm"
1137 armvfp_deps="arm"
1138 iwmmxt_deps="arm"
1139 neon_deps="arm"
1140
1141 mmi_deps="mips"
1142
1143 altivec_deps="ppc"
1144 ppc4xx_deps="ppc"
1145
1146 vis_deps="sparc"
1147
1148 x86_64_suggest="cmov fast_cmov"
1149 amd3dnow_deps="mmx"
1150 amd3dnowext_deps="amd3dnow"
1151 mmx_deps="x86"
1152 mmx2_deps="mmx"
1153 sse_deps="mmx"
1154 ssse3_deps="sse"
1155
1156 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1157 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1158 fast_unaligned_if_any="armv6 ppc x86"
1159
1160 need_memalign="altivec neon sse"
1161 inline_asm_deps="!tms470"
1162
1163 symver_if_any="symver_asm_label symver_gnu_asm"
1164
1165 # subsystems
1166 dct_select="rdft"
1167 mdct_select="fft"
1168 rdft_select="fft"
1169
1170 # decoders / encoders / hardware accelerators
1171 aac_decoder_select="mdct rdft"
1172 aac_encoder_select="mdct"
1173 ac3_decoder_select="mdct ac3_parser"
1174 alac_encoder_select="lpc"
1175 amrnb_decoder_select="lsp"
1176 atrac1_decoder_select="mdct"
1177 atrac3_decoder_select="mdct"
1178 binkaudio_dct_decoder_select="mdct rdft dct"
1179 binkaudio_rdft_decoder_select="mdct rdft"
1180 cavs_decoder_select="golomb"
1181 cook_decoder_select="mdct"
1182 cscd_decoder_suggest="zlib"
1183 dca_decoder_select="mdct"
1184 dnxhd_encoder_select="aandct"
1185 dxa_decoder_select="zlib"
1186 eac3_decoder_select="ac3_decoder"
1187 eamad_decoder_select="aandct"
1188 eatgq_decoder_select="aandct"
1189 eatqi_decoder_select="aandct"
1190 ffv1_decoder_select="golomb"
1191 flac_decoder_select="golomb"
1192 flac_encoder_select="golomb lpc"
1193 flashsv_decoder_select="zlib"
1194 flashsv_encoder_select="zlib"
1195 flv_decoder_select="h263_decoder"
1196 flv_encoder_select="h263_encoder"
1197 fraps_decoder_select="huffman"
1198 h261_encoder_select="aandct"
1199 h263_decoder_select="h263_parser"
1200 h263_encoder_select="aandct"
1201 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1202 h263i_decoder_select="h263_decoder"
1203 h263p_encoder_select="h263_encoder"
1204 h264_decoder_select="golomb h264dsp h264pred"
1205 h264_dxva2_hwaccel_deps="dxva2api_h"
1206 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1207 h264_vaapi_hwaccel_select="vaapi"
1208 h264_vdpau_decoder_select="vdpau h264_decoder"
1209 imc_decoder_select="fft mdct"
1210 jpegls_decoder_select="golomb"
1211 jpegls_encoder_select="golomb"
1212 ljpeg_encoder_select="aandct"
1213 loco_decoder_select="golomb"
1214 mjpeg_encoder_select="aandct"
1215 mlp_decoder_select="mlp_parser"
1216 mp1float_decoder_select="dct"
1217 mp2float_decoder_select="dct"
1218 mp3adufloat_decoder_select="dct"
1219 mp3float_decoder_select="dct"
1220 mp3on4float_decoder_select="dct"
1221 mpeg1video_encoder_select="aandct"
1222 mpeg2video_encoder_select="aandct"
1223 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1224 mpeg4_encoder_select="h263_encoder"
1225 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1226 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1227 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1228 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1229 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1230 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1231 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1232 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1233 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1234 msmpeg4v1_decoder_select="h263_decoder"
1235 msmpeg4v1_encoder_select="h263_encoder"
1236 msmpeg4v2_decoder_select="h263_decoder"
1237 msmpeg4v2_encoder_select="h263_encoder"
1238 msmpeg4v3_decoder_select="h263_decoder"
1239 msmpeg4v3_encoder_select="h263_encoder"
1240 nellymoser_decoder_select="mdct"
1241 nellymoser_encoder_select="mdct"
1242 png_decoder_select="zlib"
1243 png_encoder_select="zlib"
1244 qcelp_decoder_select="lsp"
1245 qdm2_decoder_select="mdct rdft"
1246 ra_144_encoder_select="lpc"
1247 rv10_decoder_select="h263_decoder"
1248 rv10_encoder_select="h263_encoder"
1249 rv20_decoder_select="h263_decoder"
1250 rv20_encoder_select="h263_encoder"
1251 rv30_decoder_select="golomb h264pred"
1252 rv40_decoder_select="golomb h264pred"
1253 shorten_decoder_select="golomb"
1254 sipr_decoder_select="lsp"
1255 snow_decoder_select="dwt"
1256 snow_encoder_select="aandct dwt"
1257 sonic_decoder_select="golomb"
1258 sonic_encoder_select="golomb"
1259 sonic_ls_encoder_select="golomb"
1260 svq1_encoder_select="aandct"
1261 svq3_decoder_select="golomb h264dsp h264pred"
1262 svq3_decoder_suggest="zlib"
1263 theora_decoder_select="vp3_decoder"
1264 tiff_decoder_suggest="zlib"
1265 tiff_encoder_suggest="zlib"
1266 truehd_decoder_select="mlp_decoder"
1267 tscc_decoder_select="zlib"
1268 twinvq_decoder_select="mdct lsp"
1269 vc1_decoder_select="h263_decoder"
1270 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1271 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1272 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1273 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1274 vorbis_decoder_select="mdct"
1275 vorbis_encoder_select="mdct"
1276 vp6_decoder_select="huffman"
1277 vp6a_decoder_select="vp6_decoder"
1278 vp6f_decoder_select="vp6_decoder"
1279 vp8_decoder_select="h264pred"
1280 wmapro_decoder_select="mdct"
1281 wmav1_decoder_select="mdct"
1282 wmav1_encoder_select="mdct"
1283 wmav2_decoder_select="mdct"
1284 wmav2_encoder_select="mdct"
1285 wmavoice_decoder_select="lsp rdft dct mdct"
1286 wmv1_decoder_select="h263_decoder"
1287 wmv1_encoder_select="h263_encoder"
1288 wmv2_decoder_select="h263_decoder"
1289 wmv2_encoder_select="h263_encoder"
1290 wmv3_decoder_select="vc1_decoder"
1291 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1292 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1293 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1294 zlib_decoder_select="zlib"
1295 zlib_encoder_select="zlib"
1296 zmbv_decoder_select="zlib"
1297 zmbv_encoder_select="zlib"
1298
1299 vaapi_deps="va_va_h"
1300 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1301
1302 # parsers
1303 h264_parser_select="golomb h264dsp h264pred"
1304
1305 # external libraries
1306 libdirac_decoder_deps="libdirac !libschroedinger"
1307 libdirac_encoder_deps="libdirac"
1308 libfaac_encoder_deps="libfaac"
1309 libgsm_decoder_deps="libgsm"
1310 libgsm_encoder_deps="libgsm"
1311 libgsm_ms_decoder_deps="libgsm"
1312 libgsm_ms_encoder_deps="libgsm"
1313 libmp3lame_encoder_deps="libmp3lame"
1314 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1315 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1316 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1317 libopenjpeg_decoder_deps="libopenjpeg"
1318 libschroedinger_decoder_deps="libschroedinger"
1319 libschroedinger_encoder_deps="libschroedinger"
1320 libspeex_decoder_deps="libspeex"
1321 libtheora_encoder_deps="libtheora"
1322 libvorbis_encoder_deps="libvorbis"
1323 libvpx_decoder_deps="libvpx"
1324 libvpx_encoder_deps="libvpx"
1325 libx264_encoder_deps="libx264"
1326 libxavs_encoder_deps="libxavs"
1327 libxvid_encoder_deps="libxvid"
1328
1329 # demuxers / muxers
1330 ac3_demuxer_deps="ac3_parser"
1331 asf_stream_muxer_select="asf_muxer"
1332 avisynth_demuxer_deps="avisynth"
1333 dirac_demuxer_deps="dirac_parser"
1334 eac3_demuxer_select="ac3_parser"
1335 ipod_muxer_select="mov_muxer"
1336 libnut_demuxer_deps="libnut"
1337 libnut_muxer_deps="libnut"
1338 matroska_audio_muxer_select="matroska_muxer"
1339 matroska_demuxer_suggest="zlib bzlib"
1340 mov_demuxer_suggest="zlib"
1341 mp3_demuxer_deps="mpegaudio_parser"
1342 mp4_muxer_select="mov_muxer"
1343 mpegtsraw_demuxer_select="mpegts_demuxer"
1344 mxf_d10_muxer_select="mxf_muxer"
1345 ogg_demuxer_select="golomb"
1346 psp_muxer_select="mov_muxer"
1347 rtsp_demuxer_deps="sdp_demuxer"
1348 rtsp_muxer_deps="sdp_demuxer"
1349 rtsp_muxer_select="rtp_muxer"
1350 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1351 sdp_demuxer_select="asf_demuxer rm_demuxer"
1352 spdif_muxer_select="aac_parser"
1353 tg2_muxer_select="mov_muxer"
1354 tgp_muxer_select="mov_muxer"
1355 w64_demuxer_deps="wav_demuxer"
1356
1357 # indevs / outdevs
1358 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1359 alsa_outdev_deps="alsa_asoundlib_h"
1360 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1361 dv1394_indev_deps="dv1394 dv_demuxer"
1362 jack_indev_deps="jack_jack_h"
1363 libdc1394_indev_deps="libdc1394"
1364 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1365 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1366 v4l_indev_deps="linux_videodev_h"
1367 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1368 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1369 vfwcap_indev_extralibs="-lavicap32"
1370 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1371 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1372
1373 # protocols
1374 gopher_protocol_deps="network"
1375 http_protocol_deps="network"
1376 http_protocol_select="tcp_protocol"
1377 mmsh_protocol_select="http_protocol"
1378 mmst_protocol_deps="network"
1379 rtmp_protocol_select="tcp_protocol"
1380 rtp_protocol_select="udp_protocol"
1381 tcp_protocol_deps="network"
1382 udp_protocol_deps="network"
1383
1384 # libraries
1385 avdevice_deps="avcodec avformat"
1386 avformat_deps="avcodec"
1387
1388 # programs
1389 ffmpeg_deps="avcodec avformat swscale"
1390 ffmpeg_select="buffer_filter"
1391 ffplay_deps="avcodec avformat swscale sdl"
1392 ffplay_select="rdft"
1393 ffprobe_deps="avcodec avformat"
1394 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1395 ffserver_extralibs='$ldl'
1396
1397 doc_deps="texi2html"
1398
1399 # tests
1400
1401 test_deps(){
1402     suf1=$1
1403     suf2=$2
1404     shift 2
1405     for v; do
1406         dep=${v%=*}
1407         tests=${v#*=}
1408         for name in ${tests}; do
1409             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1410         done
1411     done
1412 }
1413
1414 set_ne_test_deps(){
1415     eval ${1}_be_test_deps="bigendian"
1416     eval ${1}_le_test_deps="!bigendian"
1417 }
1418
1419 test_deps _encoder _decoder                                             \
1420     ac3                                                                 \
1421     adpcm_g726=g726                                                     \
1422     adpcm_ima_qt                                                        \
1423     adpcm_ima_wav                                                       \
1424     adpcm_ms                                                            \
1425     adpcm_swf                                                           \
1426     adpcm_yamaha=adpcm_yam                                              \
1427     alac                                                                \
1428     asv1                                                                \
1429     asv2                                                                \
1430     bmp                                                                 \
1431     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1432     dvvideo="dv dv50"                                                   \
1433     ffv1                                                                \
1434     flac                                                                \
1435     flashsv                                                             \
1436     flv                                                                 \
1437     gif                                                                 \
1438     h261                                                                \
1439     h263="h263 h263p"                                                   \
1440     huffyuv                                                             \
1441     jpegls                                                              \
1442     mjpeg="jpg mjpeg ljpeg"                                             \
1443     mp2                                                                 \
1444     mpeg1video="mpeg mpeg1b"                                            \
1445     mpeg2video="mpeg2 mpeg2thread"                                      \
1446     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1447     msmpeg4v3=msmpeg4                                                   \
1448     msmpeg4v2                                                           \
1449     pbm=pbmpipe                                                         \
1450     pcx                                                                 \
1451     pgm="pgm pgmpipe"                                                   \
1452     ppm="ppm ppmpipe"                                                   \
1453     rawvideo="rgb yuv"                                                  \
1454     roq                                                                 \
1455     rv10                                                                \
1456     rv20                                                                \
1457     sgi                                                                 \
1458     snow="snow snowll"                                                  \
1459     svq1                                                                \
1460     targa=tga                                                           \
1461     tiff                                                                \
1462     wmav1                                                               \
1463     wmav2                                                               \
1464     wmv1                                                                \
1465     wmv2                                                                \
1466
1467 test_deps _muxer _demuxer                                               \
1468     aiff                                                                \
1469     pcm_alaw=alaw                                                       \
1470     asf                                                                 \
1471     au                                                                  \
1472     avi                                                                 \
1473     dv=dv_fmt                                                           \
1474     ffm                                                                 \
1475     flv=flv_fmt                                                         \
1476     gxf                                                                 \
1477     matroska=mkv                                                        \
1478     mmf                                                                 \
1479     mov                                                                 \
1480     pcm_mulaw=mulaw                                                     \
1481     mxf                                                                 \
1482     nut                                                                 \
1483     ogg                                                                 \
1484     rawvideo=pixfmt                                                     \
1485     rm                                                                  \
1486     swf                                                                 \
1487     mpegts=ts                                                           \
1488     voc                                                                 \
1489     wav                                                                 \
1490     yuv4mpegpipe=yuv4mpeg                                               \
1491
1492 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1493
1494 set_ne_test_deps pixdesc
1495 set_ne_test_deps pixfmts_crop
1496 set_ne_test_deps pixfmts_hflip
1497 set_ne_test_deps pixfmts_null
1498 set_ne_test_deps pixfmts_pad
1499 set_ne_test_deps pixfmts_scale
1500 set_ne_test_deps pixfmts_vflip
1501
1502 # default parameters
1503
1504 logfile="config.log"
1505
1506 # installation paths
1507 prefix_default="/usr/local"
1508 bindir_default='${prefix}/bin'
1509 datadir_default='${prefix}/share/ffmpeg'
1510 incdir_default='${prefix}/include'
1511 libdir_default='${prefix}/lib'
1512 mandir_default='${prefix}/share/man'
1513 shlibdir_default="$libdir_default"
1514
1515 # toolchain
1516 ar_default="ar"
1517 cc_default="gcc"
1518 cc_version=\"unknown\"
1519 host_cc_default="gcc"
1520 ln_s="ln -sf"
1521 nm_default="nm"
1522 objformat="elf"
1523 ranlib="ranlib"
1524 strip_default="strip"
1525 yasmexe="yasm"
1526 nogas=":"
1527
1528 nm_opts='-g'
1529
1530 # machine
1531 arch_default=$(uname -m)
1532 cpu="generic"
1533
1534 # OS
1535 target_os_default=$(tolower $(uname -s))
1536 host_os=$target_os_default
1537
1538 # configurable options
1539 enable avcodec
1540 enable avcore
1541 enable avdevice
1542 enable avfilter
1543 enable avformat
1544 enable avutil
1545 enable asm
1546 enable debug
1547 enable doc
1548 enable fastdiv
1549 enable ffmpeg
1550 enable ffplay
1551 enable ffprobe
1552 enable ffserver
1553 enable mpegaudio_hp
1554 enable network
1555 enable optimizations
1556 enable protocols
1557 enable static
1558 enable stripping
1559 enable swscale
1560 enable swscale_alpha
1561
1562 # build settings
1563 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1564 FFSERVERLDFLAGS=-Wl,-E
1565 LIBPREF="lib"
1566 LIBSUF=".a"
1567 FULLNAME='$(NAME)$(BUILDSUF)'
1568 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1569 SLIBPREF="lib"
1570 SLIBSUF=".so"
1571 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1572 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1573 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1574 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1575
1576 CC_O='-o $@'
1577
1578 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1579 host_libs='-lm'
1580
1581 target_path='$(CURDIR)'
1582
1583 # since the object filename is not given with the -MM flag, the compiler
1584 # is only able to print the basename, and we must add the path ourselves
1585 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1586 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1587
1588 # find source path
1589 source_path="$(dirname "$0")"
1590 enable source_path_used
1591 if test -f configure; then
1592     source_path="$(pwd)"
1593     disable source_path_used
1594 else
1595     source_path="$(cd "$source_path"; pwd)"
1596     echo "$source_path" | grep -q '[[:blank:]]' &&
1597         die "Out of tree builds are impossible with whitespace in source path."
1598     test -e "$source_path/config.h" &&
1599         die "Out of tree builds are impossible with config.h in source dir."
1600 fi
1601
1602 for v in "$@"; do
1603     r=${v#*=}
1604     l=${v%"$r"}
1605     r=$(sh_quote "$r")
1606     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1607 done
1608
1609 find_things(){
1610     thing=$1
1611     pattern=$2
1612     file=$source_path/$3
1613     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1614 }
1615
1616 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1617 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1618 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1619 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1620 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1621 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1622 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1623 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1624 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1625 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1626 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1627
1628 find_tests(){
1629     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1630 }
1631
1632 ACODEC_TESTS=$(find_tests acodec)
1633 VCODEC_TESTS=$(find_tests vsynth1)
1634 LAVF_TESTS=$(find_tests lavf)
1635 LAVFI_TESTS=$(find_tests lavfi)
1636 SEEK_TESTS=$(find_tests seek seek_)
1637
1638 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1639
1640 for n in $COMPONENT_LIST; do
1641     v=$(toupper ${n%s})_LIST
1642     eval enable \$$v
1643     eval ${n}_if_any="\$$v"
1644 done
1645
1646 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1647
1648 die_unknown(){
1649     echo "Unknown option \"$1\"."
1650     echo "See $0 --help for available options."
1651     exit 1
1652 }
1653
1654 show_list() {
1655     suffix=_$1
1656     shift
1657     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1658     exit 0
1659 }
1660
1661 for opt do
1662     optval="${opt#*=}"
1663     case "$opt" in
1664     --extra-ldflags=*) add_ldflags $optval
1665     ;;
1666     --extra-libs=*) add_extralibs $optval
1667     ;;
1668     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1669     ;;
1670     --enable-debug=*) debuglevel="$optval"
1671     ;;
1672     --disable-everything)
1673     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1674     ;;
1675     --enable-*=*|--disable-*=*)
1676     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1677     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1678     eval list=\$$(toupper $thing)_LIST
1679     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1680     $action $(filter "$name" $list)
1681     ;;
1682     --enable-?*|--disable-?*)
1683     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1684     if is_in $option $COMPONENT_LIST; then
1685         test $action = disable && action=unset
1686         eval $action \$$(toupper ${option%s})_LIST
1687     elif is_in $option $CMDLINE_SELECT; then
1688         $action $option
1689     else
1690         die_unknown $opt
1691     fi
1692     ;;
1693     --list-*)
1694         NAME="${opt#--list-}"
1695         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1696         NAME=${NAME%s}
1697         eval show_list $NAME \$$(toupper $NAME)_LIST
1698     ;;
1699     --help|-h) show_help
1700     ;;
1701     *)
1702     optname="${opt%%=*}"
1703     optname="${optname#--}"
1704     optname=$(echo "$optname" | sed 's/-/_/g')
1705     if is_in $optname $CMDLINE_SET; then
1706         eval $optname='$optval'
1707     elif is_in $optname $CMDLINE_APPEND; then
1708         append $optname "$optval"
1709     else
1710          die_unknown $opt
1711     fi
1712     ;;
1713     esac
1714 done
1715
1716 disabled logging && logfile=/dev/null
1717
1718 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1719 set >> $logfile
1720
1721 test -n "$cross_prefix" && enable cross_compile
1722
1723 if enabled cross_compile; then
1724     test -n "$arch" && test -n "$target_os" ||
1725         die "Must specify target arch and OS when cross-compiling"
1726 fi
1727
1728 set_default arch target_os
1729
1730 ar_default="${cross_prefix}${ar_default}"
1731 cc_default="${cross_prefix}${cc_default}"
1732 nm_default="${cross_prefix}${nm_default}"
1733 ranlib="${cross_prefix}${ranlib}"
1734 strip_default="${cross_prefix}${strip_default}"
1735
1736 sysinclude_default="${sysroot}/usr/include"
1737
1738 set_default cc nm strip sysinclude
1739 enabled cross_compile || host_cc_default=$cc
1740 set_default host_cc
1741
1742 exesuf() {
1743     case $1 in
1744         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1745     esac
1746 }
1747
1748 EXESUF=$(exesuf $target_os)
1749 HOSTEXESUF=$(exesuf $host_os)
1750
1751 # set temporary file name
1752 : ${TMPDIR:=$TEMPDIR}
1753 : ${TMPDIR:=$TMP}
1754 : ${TMPDIR:=/tmp}
1755
1756 if ! check_cmd type mktemp; then
1757     # simple replacement for missing mktemp
1758     # NOT SAFE FOR GENERAL USE
1759     mktemp(){
1760         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1761     }
1762 fi
1763
1764 tmpfile(){
1765     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1766         (set -C; exec > $tmp) 2>/dev/null ||
1767         die "Unable to create temporary file in $TMPDIR."
1768     append TMPFILES $tmp
1769     eval $1=$tmp
1770 }
1771
1772 trap 'rm -f -- $TMPFILES' EXIT
1773 trap exit HUP INT TERM
1774
1775 tmpfile TMPC  .c
1776 tmpfile TMPE  $EXESUF
1777 tmpfile TMPH  .h
1778 tmpfile TMPO  .o
1779 tmpfile TMPS  .S
1780 tmpfile TMPV  .ver
1781 tmpfile TMPSH .sh
1782
1783 unset -f mktemp
1784
1785 # make sure we can execute files in $TMPDIR
1786 cat > $TMPSH 2>> $logfile <<EOF
1787 #! /bin/sh
1788 EOF
1789 chmod +x $TMPSH >> $logfile 2>&1
1790 if ! $TMPSH >> $logfile 2>&1; then
1791     cat <<EOF
1792 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1793 variable to another directory and make sure that it is not mounted noexec.
1794 EOF
1795     die "Sanity test failed."
1796 fi
1797
1798 filter_cflags=echo
1799 filter_cppflags=echo
1800 filter_asflags=echo
1801
1802 if   $cc -v 2>&1 | grep -qi ^gcc; then
1803     cc_type=gcc
1804     cc_version=__VERSION__
1805     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1806     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1807     if ! $cc -dumpversion | grep -q '^2\.'; then
1808         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1809         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1810     fi
1811     speed_cflags='-O3'
1812     size_cflags='-Os'
1813 elif $cc --version 2>/dev/null | grep -q Intel; then
1814     cc_type=icc
1815     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1816     cc_ident=$($cc --version | head -n1)
1817     CC_DEPFLAGS='-MMD'
1818     AS_DEPFLAGS='-MMD'
1819     speed_cflags='-O3'
1820     size_cflags='-Os'
1821     noopt_cflags='-O1'
1822 elif $cc -v 2>&1 | grep -q xlc; then
1823     cc_type=xlc
1824     cc_version="AV_STRINGIFY(__IBMC__)"
1825     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1826     speed_cflags='-O5'
1827     size_cflags='-O5 -qcompact'
1828 elif $cc -V 2>/dev/null | grep -q Compaq; then
1829     cc_type=ccc
1830     cc_version="AV_STRINGIFY(__DECC_VER)"
1831     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1832     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1833     debuglevel=3
1834     add_ldflags -Wl,-z,now # calls to libots crash without this
1835     speed_cflags='-fast'
1836     size_cflags='-O1'
1837 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1838     test -d "$sysroot" || die "No valid sysroot specified."
1839     cc_type=armcc
1840     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1841     cc_ident=$($cc --vsn | head -n1)
1842     armcc_conf="$PWD/armcc.conf"
1843     $cc --arm_linux_configure                 \
1844         --arm_linux_config_file="$armcc_conf" \
1845         --configure_sysroot="$sysroot"        \
1846         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1847         die "Error creating armcc configuration file."
1848     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1849     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1850     as_default="${cross_prefix}gcc"
1851     CC_DEPFLAGS='-MMD'
1852     AS_DEPFLAGS='-MMD'
1853     speed_cflags='-O3'
1854     size_cflags='-Os'
1855 elif $cc -version 2>/dev/null | grep -q TMS470; then
1856     cc_type=tms470
1857     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1858     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1859     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1860     CC_O='-fr=$(@D)'
1861     as_default="${cross_prefix}gcc"
1862     ld_default="${cross_prefix}gcc"
1863     TMPO=$(basename $TMPC .c).o
1864     append TMPFILES $TMPO
1865     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1866     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1867     AS_DEPFLAGS='-MMD'
1868     speed_cflags='-O3 -mf=5'
1869     size_cflags='-O3 -mf=2'
1870     filter_cflags=tms470_flags
1871     tms470_flags(){
1872         for flag; do
1873             case $flag in
1874                 -march=*|-mcpu=*)
1875                     case "${flag#*=}" in
1876                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1877                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1878                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1879                         armv6*|arm11*)          echo -mv=6   ;;
1880                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1881                                                 echo -mv=5e  ;;
1882                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1883                     esac
1884                     ;;
1885                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1886                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1887                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1888                 -msoft-float)   echo --float_support=vfplib       ;;
1889                 -O[0-3]|-mf=*)  echo $flag                        ;;
1890                 -g)             echo -g -mn                       ;;
1891                 -pds=*)         echo $flag                        ;;
1892             esac
1893         done
1894     }
1895 elif $cc -v 2>&1 | grep -q clang; then
1896     cc_type=clang
1897     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1898         cc_version=__clang_version__ || cc_version=__VERSION__
1899     cc_ident=$($cc --version | head -n1)
1900     CC_DEPFLAGS='-MMD'
1901     AS_DEPFLAGS='-MMD'
1902     speed_cflags='-O3'
1903     size_cflags='-Os'
1904 elif $cc -V 2>&1 | grep -q Sun; then
1905     cc_type=suncc
1906     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1907     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1908     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1909     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1910     speed_cflags='-O5'
1911     size_cflags='-O5 -xspace'
1912     filter_cflags=suncc_flags
1913     suncc_flags(){
1914         for flag; do
1915             case $flag in
1916                 -march=*|-mcpu=*)
1917                     case "${flag#*=}" in
1918                         native)                   echo -xtarget=native       ;;
1919                         v9|niagara)               echo -xarch=sparc          ;;
1920                         ultrasparc)               echo -xarch=sparcvis       ;;
1921                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1922                         i586|pentium)             echo -xchip=pentium        ;;
1923                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1924                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1925                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1926                         pentium4*)          echo -xtarget=pentium4           ;;
1927                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1928                         *-sse3)             echo -xarch=sse3                 ;;
1929                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1930                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1931                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1932                         k8|opteron|athlon64|athlon-fx)
1933                                                   echo -xarch=sse2a          ;;
1934                         athlon*)                  echo -xarch=pentium_proa   ;;
1935                     esac
1936                     ;;
1937                 -std=c99)             echo -xc99              ;;
1938                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1939                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1940                 -W*,*)                echo $flag              ;;
1941                 -f*-*|-W*)                                    ;;
1942                 *)                    echo $flag              ;;
1943             esac
1944         done
1945     }
1946 elif $cc -v 2>&1 | grep -q PathScale; then
1947     cc_type=pathscale
1948     cc_version=__PATHSCALE__
1949     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1950     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1952     speed_cflags='-O2'
1953     size_cflags='-Os'
1954 fi
1955
1956 test -n "$cc_type" && enable $cc_type ||
1957     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1958
1959 : ${as_default:=$cc}
1960 : ${dep_cc_default:=$cc}
1961 : ${ld_default:=$cc}
1962 set_default ar as dep_cc ld
1963
1964 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1965 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1966
1967 add_cflags $extra_cflags
1968 add_asflags $extra_cflags
1969
1970 if test -n "$sysroot"; then
1971     case "$cc_type" in
1972         gcc)
1973             add_cppflags --sysroot="$sysroot"
1974             add_ldflags --sysroot="$sysroot"
1975         ;;
1976         tms470)
1977             add_cppflags -I"$sysinclude"
1978             add_ldflags  --sysroot="$sysroot"
1979         ;;
1980         clang)
1981             add_cppflags -isysroot "$sysroot"
1982             add_ldflags -isysroot "$sysroot"
1983         ;;
1984     esac
1985 fi
1986
1987 if test "$cpu" = host; then
1988     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1989
1990     case "$cc_type" in
1991         gcc)
1992             check_native(){
1993                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1994                 sed -n "/$1=/{
1995                             s/.*$1=\\([^ ]*\\).*/\\1/
1996                             p
1997                             q
1998                         }" $TMPE
1999             }
2000             cpu=$(check_native -march || check_native -mcpu)
2001         ;;
2002     esac
2003
2004     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2005 fi
2006
2007 # Deal with common $arch aliases
2008 case "$arch" in
2009     arm*)
2010         arch="arm"
2011     ;;
2012     mips|mipsel|IP*)
2013         arch="mips"
2014     ;;
2015     mips64*)
2016         arch="mips"
2017         subarch="mips64"
2018     ;;
2019     parisc|hppa)
2020         arch="parisc"
2021     ;;
2022     parisc64|hppa64)
2023         arch="parisc"
2024         subarch="parisc64"
2025     ;;
2026     "Power Macintosh"|ppc|powerpc)
2027         arch="ppc"
2028     ;;
2029     ppc64|powerpc64)
2030         arch="ppc"
2031         subarch="ppc64"
2032     ;;
2033     s390|s390x)
2034         arch="s390"
2035     ;;
2036     sh4|sh)
2037         arch="sh4"
2038     ;;
2039     sun4u|sparc64)
2040         arch="sparc"
2041         subarch="sparc64"
2042     ;;
2043     i[3-6]86|i86pc|BePC|x86_64|amd64)
2044         arch="x86"
2045     ;;
2046 esac
2047
2048 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2049 enable $arch
2050
2051 # Add processor-specific flags
2052 if test "$cpu" = generic; then
2053     : do nothing
2054 elif enabled ppc; then
2055
2056     case $(tolower $cpu) in
2057         601|ppc601|powerpc601)
2058             cpuflags="-mcpu=601"
2059             disable altivec
2060         ;;
2061         603*|ppc603*|powerpc603*)
2062             cpuflags="-mcpu=603"
2063             disable altivec
2064         ;;
2065         604*|ppc604*|powerpc604*)
2066             cpuflags="-mcpu=604"
2067             disable altivec
2068         ;;
2069         g3|75*|ppc75*|powerpc75*)
2070             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2071             disable altivec
2072         ;;
2073         g4|745*|ppc745*|powerpc745*)
2074             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2075         ;;
2076         74*|ppc74*|powerpc74*)
2077             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2078         ;;
2079         g5|970|ppc970|powerpc970|power4*)
2080             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2081         ;;
2082         cell)
2083             cpuflags="-mcpu=cell"
2084             enable ldbrx
2085         ;;
2086         e500v2)
2087             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2088             disable altivec
2089         ;;
2090         e500)
2091             cpuflags="-mcpu=8540 -mhard-float"
2092             disable altivec
2093         ;;
2094     esac
2095
2096 elif enabled x86; then
2097
2098     case $cpu in
2099         i[345]86|pentium)
2100             cpuflags="-march=$cpu"
2101             disable mmx
2102         ;;
2103         # targets that do NOT support conditional mov (cmov)
2104         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2105             cpuflags="-march=$cpu"
2106             disable cmov
2107         ;;
2108         # targets that do support conditional mov (cmov)
2109         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2110             cpuflags="-march=$cpu"
2111             enable cmov
2112             enable fast_cmov
2113         ;;
2114         # targets that do support conditional mov but on which it's slow
2115         pentium4|pentium4m|prescott|nocona)
2116             cpuflags="-march=$cpu"
2117             enable cmov
2118             disable fast_cmov
2119         ;;
2120     esac
2121
2122 elif enabled sparc; then
2123
2124     case $cpu in
2125         niagara)
2126             cpuflags="-mcpu=$cpu"
2127             disable vis
2128         ;;
2129         sparc64)
2130             cpuflags="-mcpu=v9"
2131         ;;
2132     esac
2133
2134 elif enabled arm; then
2135
2136     case $cpu in
2137         armv*)
2138             cpuflags="-march=$cpu"
2139             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2140         ;;
2141         *)
2142             cpuflags="-mcpu=$cpu"
2143             case $cpu in
2144                 cortex-a*)                               subarch=armv7a  ;;
2145                 cortex-r*)                               subarch=armv7r  ;;
2146                 cortex-m*)                               subarch=armv7m  ;;
2147                 arm11*)                                  subarch=armv6   ;;
2148                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2149                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2150             esac
2151         ;;
2152     esac
2153
2154 elif enabled alpha; then
2155
2156     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2157
2158 elif enabled bfin; then
2159
2160     cpuflags="-mcpu=$cpu"
2161
2162 elif enabled mips; then
2163
2164     cpuflags="-march=$cpu"
2165
2166 elif enabled avr32; then
2167
2168     case $cpu in
2169         ap7[02]0[0-2])
2170             subarch="avr32_ap"
2171             cpuflags="-mpart=$cpu"
2172         ;;
2173         ap)
2174             subarch="avr32_ap"
2175             cpuflags="-march=$cpu"
2176         ;;
2177         uc3[ab]*)
2178             subarch="avr32_uc"
2179             cpuflags="-mcpu=$cpu"
2180         ;;
2181         uc)
2182             subarch="avr32_uc"
2183             cpuflags="-march=$cpu"
2184         ;;
2185     esac
2186
2187 fi
2188
2189 add_cflags $cpuflags
2190 add_asflags $cpuflags
2191
2192 # compiler sanity check
2193 check_exec <<EOF
2194 int main(void){ return 0; }
2195 EOF
2196 if test "$?" != 0; then
2197     echo "$cc is unable to create an executable file."
2198     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2199         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2200         echo "Only do this if you know what cross compiling means."
2201     fi
2202     die "C compiler test failed."
2203 fi
2204
2205 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2206 check_cflags -std=c99
2207 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2208 #include <stdlib.h>
2209 EOF
2210 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2211 #include <stdlib.h>
2212 EOF
2213
2214 check_host_cflags -std=c99
2215
2216 case "$arch" in
2217     alpha|ia64|mips|parisc|sparc)
2218         spic=$shared
2219     ;;
2220     x86)
2221         subarch="x86_32"
2222         check_cc <<EOF && subarch="x86_64"
2223         int test[(int)sizeof(char*) - 7];
2224 EOF
2225         if test "$subarch" = "x86_64"; then
2226             spic=$shared
2227         fi
2228     ;;
2229 esac
2230
2231 enable $subarch
2232 enabled spic && enable pic
2233
2234 # OS specific
2235 case $target_os in
2236     haiku)
2237         prefix_default="/boot/common"
2238         network_extralibs="-lnetwork"
2239         ;;
2240     sunos)
2241         FFSERVERLDFLAGS=""
2242         SHFLAGS='-shared -Wl,-h,$$(@F)'
2243         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2244         network_extralibs="-lsocket -lnsl"
2245         add_cppflags -D__EXTENSIONS__
2246         nm_opts='-P -g'
2247         ;;
2248     netbsd)
2249         oss_indev_extralibs="-lossaudio"
2250         oss_outdev_extralibs="-lossaudio"
2251         add_cppflags -D_XOPEN_SOURCE=600
2252         ;;
2253     openbsd)
2254         enable malloc_aligned
2255         # On OpenBSD 4.5. the compiler does not use PIC unless
2256         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2257         # however the generated executable will not do anything
2258         # (simply quits with exit-code 1, no crash, no output).
2259         # Thus explicitly enable PIC here.
2260         enable pic
2261         SHFLAGS='-shared'
2262         oss_indev_extralibs="-lossaudio"
2263         oss_outdev_extralibs="-lossaudio"
2264         ;;
2265     freebsd|dragonfly)
2266         enable malloc_aligned
2267         ;;
2268     bsd/os)
2269         add_extralibs -lpoll -lgnugetopt
2270         strip="strip -d"
2271         ;;
2272     darwin)
2273         enable malloc_aligned
2274         gas="gas-preprocessor.pl $cc"
2275         enabled ppc && add_asflags -force_cpusubtype_ALL
2276         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2277         strip="${strip} -x"
2278         add_ldflags -Wl,-dynamic,-search_paths_first
2279         SLIBSUF=".dylib"
2280         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2281         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2282         FFSERVERLDFLAGS=-Wl,-bind_at_load
2283         objformat="macho"
2284         enabled x86_64 && objformat="macho64"
2285         enabled_any pic shared ||
2286             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2287         ;;
2288     mingw32*)
2289         if test $target_os = "mingw32ce"; then
2290             disable network
2291         else
2292             target_os=mingw32
2293         fi
2294         LIBTARGET=i386
2295         if enabled x86_64; then
2296             enable malloc_aligned
2297             LIBTARGET=x64
2298         elif enabled arm; then
2299             LIBTARGET=arm
2300         fi
2301         shlibdir_default="$bindir_default"
2302         disable ffserver
2303         SLIBPREF=""
2304         SLIBSUF=".dll"
2305         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2306         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2307         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2308         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2309             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2310             install -d "$(LIBDIR)"; \
2311             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2312         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2313         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'
2314         objformat="win32"
2315         enable dos_paths
2316         check_cflags -fno-common
2317         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2318                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2319                 die "ERROR: MinGW runtime version must be >= 3.15."
2320         ;;
2321     cygwin*)
2322         target_os=cygwin
2323         shlibdir_default="$bindir_default"
2324         SLIBPREF="cyg"
2325         SLIBSUF=".dll"
2326         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2327         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2328         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2329         objformat="win32"
2330         enable dos_paths
2331         check_cflags -fno-common
2332         ;;
2333     *-dos|freedos|opendos)
2334         disable ffplay ffserver
2335         disable $INDEV_LIST $OUTDEV_LIST
2336         network_extralibs="-lsocket"
2337         objformat="coff"
2338         enable dos_paths
2339         ;;
2340     linux)
2341         enable dv1394
2342         ;;
2343     irix*)
2344         target_os=irix
2345         ranlib="echo ignoring ranlib"
2346         ;;
2347     os/2*)
2348         strip="lxlite"
2349         ln_s="cp -f"
2350         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2351         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2352         FFSERVERLDFLAGS=""
2353         LIBSUF="_s.a"
2354         SLIBPREF=""
2355         SLIBSUF=".dll"
2356         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2357         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2358         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2359           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2360           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2361           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2362           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2363           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2364         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2365           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2366         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2367         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2368         enable dos_paths
2369         ;;
2370     gnu/kfreebsd)
2371         ;;
2372     gnu)
2373         ;;
2374     none)
2375         ;;
2376     *)
2377         die "Unknown OS '$target_os'."
2378         ;;
2379 esac
2380
2381 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2382
2383 set_default $PATHS_LIST
2384
2385 # we need to build at least one lib type
2386 if ! enabled_any static shared; then
2387     cat <<EOF
2388 At least one library type must be built.
2389 Specify --enable-static to build the static libraries or --enable-shared to
2390 build the shared libraries as well. To only build the shared libraries specify
2391 --disable-static in addition to --enable-shared.
2392 EOF
2393     exit 1;
2394 fi
2395
2396 disabled static && LIBNAME=""
2397
2398 die_license_disabled() {
2399     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2400 }
2401
2402 die_license_disabled gpl libx264
2403 die_license_disabled gpl libxavs
2404 die_license_disabled gpl libxvid
2405 die_license_disabled gpl postproc
2406 die_license_disabled gpl x11grab
2407
2408 die_license_disabled nonfree libfaac
2409
2410 die_license_disabled version3 libopencore_amrnb
2411 die_license_disabled version3 libopencore_amrwb
2412
2413 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2414
2415 check_deps $ARCH_EXT_LIST
2416
2417 disabled optimizations || check_cflags -fomit-frame-pointer
2418
2419 enable_pic() {
2420     enable pic
2421     add_cppflags -DPIC
2422     add_cflags   -fPIC
2423     add_asflags  -fPIC
2424 }
2425
2426 enabled pic && enable_pic
2427
2428 check_cc <<EOF || die "Symbol mangling check failed."
2429 int ff_extern;
2430 EOF
2431 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2432 extern_prefix=${sym%%ff_extern*}
2433
2434 check_cc <<EOF && enable inline_asm
2435 void foo(void) { __asm__ volatile ("" ::); }
2436 EOF
2437
2438 _restrict=
2439 for restrict_keyword in restrict __restrict__ __restrict; do
2440     check_cc <<EOF && _restrict=$restrict_keyword && break
2441 void foo(char * $restrict_keyword p);
2442 EOF
2443 done
2444
2445 check_cc <<EOF && enable attribute_packed
2446 struct { int x; } __attribute__((packed)) x;
2447 EOF
2448
2449 check_cc <<EOF && enable attribute_may_alias
2450 union { int x; } __attribute__((may_alias)) x;
2451 EOF
2452
2453 check_cc <<EOF || die "endian test failed"
2454 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2455 EOF
2456 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2457
2458 if enabled alpha; then
2459
2460     check_cflags -mieee
2461
2462 elif enabled arm; then
2463
2464     check_cflags -marm
2465     nogas=die
2466
2467     check_ld <<EOF && enable vfp_args
2468 __asm__ (".eabi_attribute 28, 1");
2469 int main(void) { return 0; }
2470 EOF
2471
2472     # We have to check if pld is a nop and disable it.
2473     check_asm pld '"pld [r0]"'
2474
2475     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2476     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2477     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2478     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2479     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2480     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2481
2482     enabled_all armv6t2 shared !pic && enable_pic
2483
2484 elif enabled mips; then
2485
2486     check_asm loongson '"dmult.g $1, $2, $3"'
2487     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2488
2489 elif enabled ppc; then
2490
2491     enable local_aligned_8 local_aligned_16
2492
2493     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2494     check_asm ibm_asm   '"add 0, 0, 0"'
2495     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2496     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2497
2498     # AltiVec flags: The FSF version of GCC differs from the Apple version
2499     if enabled altivec; then
2500         nogas=warn
2501         check_cflags -maltivec -mabi=altivec &&
2502         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2503         check_cflags -faltivec
2504
2505         # check if our compiler supports Motorola AltiVec C API
2506         check_cc <<EOF || disable altivec
2507 $inc_altivec_h
2508 int main(void) {
2509     vector signed int v1, v2, v3;
2510     v1 = vec_add(v2,v3);
2511     return 0;
2512 }
2513 EOF
2514
2515         # check if our compiler supports braces for vector declarations
2516         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2517 $inc_altivec_h
2518 int main (void) { (vector int) {1}; return 0; }
2519 EOF
2520     fi
2521
2522 elif enabled sparc; then
2523
2524     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2525         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2526
2527 elif enabled x86; then
2528
2529     enable local_aligned_8 local_aligned_16
2530
2531     # check whether EBP is available on x86
2532     # As 'i' is stored on the stack, this program will crash
2533     # if the base pointer is used to access it because the
2534     # base pointer is cleared in the inline assembly code.
2535     check_exec_crash <<EOF && enable ebp_available
2536     volatile int i=0;
2537     __asm__ volatile (
2538         "xorl %%ebp, %%ebp"
2539     ::: "%ebp");
2540     return i;
2541 EOF
2542
2543     # check whether EBX is available on x86
2544     check_asm ebx_available '""::"b"(0)' &&
2545         check_asm ebx_available '"":::"%ebx"'
2546
2547     # check whether more than 10 operands are supported
2548     check_cc <<EOF && enable ten_operands
2549 int main(void) {
2550     int x=0;
2551     __asm__ volatile(
2552         ""
2553         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2554     );
2555     return 0;
2556 }
2557 EOF
2558
2559     # check whether binutils is new enough to compile SSSE3/MMX2
2560     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2561     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2562
2563     check_asm bswap '"bswap %%eax" ::: "%eax"'
2564
2565     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2566     enabled     x86_64        && append YASMFLAGS "-m amd64"
2567     enabled     pic           && append YASMFLAGS "-DPIC"
2568     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2569     case "$objformat" in
2570         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2571     esac
2572     if ! disabled_any asm mmx yasm; then
2573         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2574             die "yasm not found, use --disable-yasm for a crippled build"
2575     fi
2576
2577     case "$cpu" in
2578         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2579             disable fast_clz
2580         ;;
2581     esac
2582
2583 fi
2584
2585 if enabled asm; then
2586     as=${gas:=$as}
2587     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2588         $nogas "GNU assembler not found, install gas-preprocessor"
2589 fi
2590
2591 if check_func dlopen; then
2592     ldl=
2593 elif check_func dlopen -ldl; then
2594     ldl=-ldl
2595 fi
2596
2597 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2598 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2599
2600 check_func  fcntl
2601 check_func  fork
2602 check_func  getaddrinfo $network_extralibs
2603 check_func  gethrtime
2604 check_func  getrusage
2605 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2606 check_func  inet_aton $network_extralibs
2607 check_func  isatty
2608 check_func  ${malloc_prefix}memalign            && enable memalign
2609 check_func  mkstemp
2610 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2611 check_func  setrlimit
2612 check_func  strerror_r
2613 check_func_headers io.h setmode
2614 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2615 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2616 check_func_headers windows.h GetProcessTimes
2617 check_func_headers windows.h VirtualAlloc
2618
2619 check_header conio.h
2620 check_header dlfcn.h
2621 check_header dxva2api.h
2622 check_header malloc.h
2623 check_header poll.h
2624 check_header sys/mman.h
2625 check_header sys/resource.h
2626 check_header sys/select.h
2627 check_header termios.h
2628 check_header vdpau/vdpau.h
2629 check_header vdpau/vdpau_x11.h
2630 check_header X11/extensions/XvMClib.h
2631
2632 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2633
2634 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2635      enabled_any $need_memalign ; then
2636     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2637 fi
2638
2639 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2640 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2641
2642 # check for some common methods of building with pthread support
2643 # do this before the optional library checks as some of them require pthreads
2644 if ! disabled pthreads && ! enabled w32threads; then
2645     enable pthreads
2646     if check_func pthread_create; then
2647         :
2648     elif check_func pthread_create -pthread; then
2649         add_cflags -pthread
2650         add_extralibs -pthread
2651     elif check_func pthread_create -pthreads; then
2652         add_cflags -pthreads
2653         add_extralibs -pthreads
2654     elif check_func pthread_create -lpthreadGC2; then
2655         add_extralibs -lpthreadGC2
2656     elif ! check_lib pthread.h pthread_create -lpthread; then
2657         disable pthreads
2658     fi
2659 fi
2660
2661 for thread in $THREADS_LIST; do
2662     if enabled $thread; then
2663         test -n "$thread_type" &&
2664             die "ERROR: Only one thread type must be selected." ||
2665             thread_type="$thread"
2666     fi
2667 done
2668
2669 check_lib math.h sin -lm
2670 disabled vaapi || check_lib va/va.h vaInitialize -lva
2671
2672 check_mathfunc exp2
2673 check_mathfunc exp2f
2674 check_mathfunc llrint
2675 check_mathfunc llrintf
2676 check_mathfunc log2
2677 check_mathfunc log2f
2678 check_mathfunc lrint
2679 check_mathfunc lrintf
2680 check_mathfunc round
2681 check_mathfunc roundf
2682 check_mathfunc truncf
2683
2684 # these are off by default, so fail if requested and not available
2685 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2686 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2687                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2688                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2689 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2690 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2691 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2692 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2693 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2694 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2695 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2696 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2697                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2698 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2699                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2700 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2701 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2702 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2703 enabled libvpx     && {
2704     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2705                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2706     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2707                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2708 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2709                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2710                         die "ERROR: libx264 version must be >= 0.98."; }
2711 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2712 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2713 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2714
2715 # libdc1394 check
2716 if enabled libdc1394; then
2717     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2718         enable libdc1394_2; } ||
2719     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2720         enable libdc1394_1; } ||
2721     die "ERROR: No version of libdc1394 found "
2722 fi
2723
2724 SDL_CONFIG="${cross_prefix}sdl-config"
2725 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2726     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2727     sdl_libs=$("${SDL_CONFIG}" --libs)
2728     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2729     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2730     enable sdl &&
2731     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2732 fi
2733
2734 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2735
2736 if enabled network; then
2737     check_type "sys/types.h sys/socket.h" socklen_t
2738     check_type netdb.h "struct addrinfo"
2739     check_type netinet/in.h "struct ipv6_mreq"
2740     check_type netinet/in.h "struct sockaddr_in6"
2741     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2742     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2743     # Prefer arpa/inet.h over winsock2
2744     if check_header arpa/inet.h ; then
2745         check_func closesocket
2746     elif check_header winsock2.h ; then
2747         check_func_headers winsock2.h closesocket -lws2 && \
2748             network_extralibs="-lws2" || \
2749         { check_func_headers winsock2.h closesocket -lws2_32 && \
2750             network_extralibs="-lws2_32"; }
2751         check_type ws2tcpip.h socklen_t
2752         check_type ws2tcpip.h "struct addrinfo"
2753         check_type ws2tcpip.h "struct ipv6_mreq"
2754         check_type ws2tcpip.h "struct sockaddr_in6"
2755         check_type ws2tcpip.h "struct sockaddr_storage"
2756         check_struct winsock2.h "struct sockaddr" sa_len
2757     else
2758         disable network
2759     fi
2760 fi
2761
2762 check_header linux/videodev.h
2763 check_header linux/videodev2.h
2764 check_header sys/videoio.h
2765
2766 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2767 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2768 # w32api 3.12 had it defined wrong
2769 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2770
2771 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2772 { check_header dev/bktr/ioctl_meteor.h &&
2773   check_header dev/bktr/ioctl_bt848.h; } ||
2774 { check_header machine/ioctl_meteor.h &&
2775   check_header machine/ioctl_bt848.h; } ||
2776 { check_header dev/video/meteor/ioctl_meteor.h &&
2777   check_header dev/video/bktr/ioctl_bt848.h; } ||
2778 check_header dev/ic/bt8xx.h
2779
2780 check_header sys/soundcard.h
2781 check_header soundcard.h
2782
2783 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2784
2785 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2786
2787 enabled x11grab                         &&
2788 check_header X11/Xlib.h                 &&
2789 check_header X11/extensions/XShm.h      &&
2790 check_header X11/extensions/Xfixes.h    &&
2791 check_func XOpenDisplay -lX11           &&
2792 check_func XShmCreateImage -lX11 -lXext &&
2793 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2794
2795 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2796 check_cpp_condition \
2797     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2798     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2799       disable vdpau; }
2800 fi
2801
2802 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2803
2804 # add some useful compiler flags if supported
2805 check_cflags -Wdeclaration-after-statement
2806 check_cflags -Wall
2807 check_cflags -Wno-parentheses
2808 check_cflags -Wno-switch
2809 check_cflags -Wdisabled-optimization
2810 check_cflags -Wpointer-arith
2811 check_cflags -Wredundant-decls
2812 check_cflags -Wno-pointer-sign
2813 check_cflags -Wcast-qual
2814 check_cflags -Wwrite-strings
2815 check_cflags -Wtype-limits
2816 check_cflags -Wundef
2817 check_cflags -Wmissing-prototypes
2818 enabled extra_warnings && check_cflags -Winline
2819
2820 # add some linker flags
2821 check_ldflags -Wl,--warn-common
2822 check_ldflags -Wl,--as-needed
2823 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'
2824 check_ldflags -Wl,-Bsymbolic
2825
2826 echo "X{};" > $TMPV
2827 if test_ldflags -Wl,--version-script,$TMPV; then
2828     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2829     check_cc <<EOF && enable symver_asm_label
2830 void ff_foo(void) __asm__ ("av_foo@VERSION");
2831 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2832 EOF
2833     check_cc <<EOF && enable symver_gnu_asm
2834 __asm__(".symver ff_foo,av_foo@VERSION");
2835 void ff_foo(void) {}
2836 EOF
2837 fi
2838
2839 if enabled small; then
2840     add_cflags $size_cflags
2841     optimizations="small"
2842 elif enabled optimizations; then
2843     add_cflags $speed_cflags
2844 else
2845     add_cflags $noopt_cflags
2846 fi
2847 check_cflags -fno-math-errno
2848 check_cflags -fno-signed-zeros
2849
2850 if enabled icc; then
2851     # Just warnings, no remarks
2852     check_cflags -w1
2853     # -wd: Disable following warnings
2854     # 144, 167, 556: -Wno-pointer-sign
2855     # 10006: ignoring unknown option -fno-signed-zeros
2856     # 10156: ignoring option '-W'; no argument required
2857     check_cflags -wd144,167,556,10006,10156
2858     # 11030: Warning unknown option --as-needed
2859     # 10156: ignoring option '-export'; no argument required
2860     check_ldflags -wd10156,11030
2861     # Allow to compile with optimizations
2862     check_ldflags -march=$cpu
2863     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2864     enable ebp_available
2865 elif enabled ccc; then
2866     # disable some annoying warnings
2867     add_cflags -msg_disable cvtu32to64
2868     add_cflags -msg_disable embedcomment
2869     add_cflags -msg_disable needconstext
2870     add_cflags -msg_disable nomainieee
2871     add_cflags -msg_disable ptrmismatch1
2872     add_cflags -msg_disable unreachcode
2873 elif enabled gcc; then
2874     check_cflags -fno-tree-vectorize
2875     check_cflags -Werror=implicit-function-declaration
2876     check_cflags -Werror=missing-prototypes
2877 elif enabled clang; then
2878     check_cflags -Qunused-arguments
2879 elif enabled armcc; then
2880     # 2523: use of inline assembler is deprecated
2881     add_cflags -W${armcc_opt},--diag_suppress=2523
2882     add_cflags -W${armcc_opt},--diag_suppress=1207
2883 elif enabled tms470; then
2884     add_cflags -pds=824 -pds=837
2885 fi
2886
2887 enabled_any $THREADS_LIST      && enable threads
2888
2889 check_deps $CONFIG_LIST       \
2890            $CONFIG_EXTRA      \
2891            $HAVE_LIST         \
2892            $DECODER_LIST      \
2893            $ENCODER_LIST      \
2894            $HWACCEL_LIST      \
2895            $PARSER_LIST       \
2896            $BSF_LIST          \
2897            $DEMUXER_LIST      \
2898            $MUXER_LIST        \
2899            $FILTER_LIST       \
2900            $INDEV_LIST        \
2901            $OUTDEV_LIST       \
2902            $PROTOCOL_LIST     \
2903            $ACODEC_TESTS      \
2904            $VCODEC_TESTS      \
2905            $LAVF_TESTS        \
2906            $LAVFI_TESTS       \
2907            $SEEK_TESTS        \
2908
2909 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2910
2911 echo "install prefix            $prefix"
2912 echo "source path               $source_path"
2913 echo "C compiler                $cc"
2914 echo "ARCH                      $arch ($cpu)"
2915 if test "$build_suffix" != ""; then
2916     echo "build suffix              $build_suffix"
2917 fi
2918 if test "$extra_version" != ""; then
2919     echo "version string suffix     $extra_version"
2920 fi
2921 echo "big-endian                ${bigendian-no}"
2922 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2923 if enabled x86; then
2924     echo "yasm                      ${yasm-no}"
2925     echo "MMX enabled               ${mmx-no}"
2926     echo "MMX2 enabled              ${mmx2-no}"
2927     echo "3DNow! enabled            ${amd3dnow-no}"
2928     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2929     echo "SSE enabled               ${sse-no}"
2930     echo "SSSE3 enabled             ${ssse3-no}"
2931     echo "CMOV enabled              ${cmov-no}"
2932     echo "CMOV is fast              ${fast_cmov-no}"
2933     echo "EBX available             ${ebx_available-no}"
2934     echo "EBP available             ${ebp_available-no}"
2935     echo "10 operands supported     ${ten_operands-no}"
2936 fi
2937 if enabled arm; then
2938     echo "ARMv5TE enabled           ${armv5te-no}"
2939     echo "ARMv6 enabled             ${armv6-no}"
2940     echo "ARMv6T2 enabled           ${armv6t2-no}"
2941     echo "ARM VFP enabled           ${armvfp-no}"
2942     echo "IWMMXT enabled            ${iwmmxt-no}"
2943     echo "NEON enabled              ${neon-no}"
2944 fi
2945 if enabled mips; then
2946     echo "MMI enabled               ${mmi-no}"
2947 fi
2948 if enabled ppc; then
2949     echo "AltiVec enabled           ${altivec-no}"
2950     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2951     echo "dcbzl available           ${dcbzl-no}"
2952 fi
2953 if enabled sparc; then
2954     echo "VIS enabled               ${vis-no}"
2955 fi
2956 echo "debug symbols             ${debug-no}"
2957 echo "strip symbols             ${stripping-no}"
2958 echo "optimizations             ${optimizations-no}"
2959 echo "static                    ${static-no}"
2960 echo "shared                    ${shared-no}"
2961 echo "postprocessing support    ${postproc-no}"
2962 echo "new filter support        ${avfilter-no}"
2963 echo "network support           ${network-no}"
2964 echo "threading support         ${thread_type-no}"
2965 echo "SDL support               ${sdl-no}"
2966 echo "Sun medialib support      ${mlib-no}"
2967 echo "AVISynth enabled          ${avisynth-no}"
2968 echo "libdc1394 support         ${libdc1394-no}"
2969 echo "libdirac enabled          ${libdirac-no}"
2970 echo "libfaac enabled           ${libfaac-no}"
2971 echo "libgsm enabled            ${libgsm-no}"
2972 echo "libmp3lame enabled        ${libmp3lame-no}"
2973 echo "libnut enabled            ${libnut-no}"
2974 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2975 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2976 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2977 echo "librtmp enabled           ${librtmp-no}"
2978 echo "libschroedinger enabled   ${libschroedinger-no}"
2979 echo "libspeex enabled          ${libspeex-no}"
2980 echo "libtheora enabled         ${libtheora-no}"
2981 echo "libvorbis enabled         ${libvorbis-no}"
2982 echo "libvpx enabled            ${libvpx-no}"
2983 echo "libx264 enabled           ${libx264-no}"
2984 echo "libxavs enabled           ${libxavs-no}"
2985 echo "libxvid enabled           ${libxvid-no}"
2986 echo "zlib enabled              ${zlib-no}"
2987 echo "bzlib enabled             ${bzlib-no}"
2988 echo
2989
2990 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2991     echo "Enabled ${type}s:"
2992     eval list=\$$(toupper $type)_LIST
2993     print_enabled '_*' $list | sort | pr -3 -t
2994     echo
2995 done
2996
2997 license="LGPL version 2.1 or later"
2998 if enabled nonfree; then
2999     license="nonfree and unredistributable"
3000 elif enabled gplv3; then
3001     license="GPL version 3 or later"
3002 elif enabled lgplv3; then
3003     license="LGPL version 3 or later"
3004 elif enabled gpl; then
3005     license="GPL version 2 or later"
3006 fi
3007
3008 echo "License: $license"
3009
3010 echo "Creating config.mak and config.h..."
3011
3012 # build tree in object directory if source path is different from current one
3013 if enabled source_path_used; then
3014     DIRS="
3015         doc
3016         libavcodec
3017         libavcodec/$arch
3018         libavcore
3019         libavdevice
3020         libavfilter
3021         libavformat
3022         libavutil
3023         libavutil/$arch
3024         libpostproc
3025         libswscale
3026         libswscale/$arch
3027         tests
3028         tools
3029     "
3030     FILES="
3031         Makefile
3032         common.mak
3033         subdir.mak
3034         doc/texi2pod.pl
3035         libavcodec/Makefile
3036         libavcodec/${arch}/Makefile
3037         libavcore/Makefile
3038         libavdevice/Makefile
3039         libavfilter/Makefile
3040         libavformat/Makefile
3041         libavutil/Makefile
3042         libpostproc/Makefile
3043         libswscale/Makefile
3044     "
3045     map 'mkdir -p $v' $DIRS;
3046     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3047 fi
3048
3049 enabled stripping || strip="echo skipping strip"
3050
3051 cat > config.mak <<EOF
3052 # Automatically generated by configure - do not modify!
3053 ifndef FFMPEG_CONFIG_MAK
3054 FFMPEG_CONFIG_MAK=1
3055 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3056 prefix=$prefix
3057 LIBDIR=\$(DESTDIR)$libdir
3058 SHLIBDIR=\$(DESTDIR)$shlibdir
3059 INCDIR=\$(DESTDIR)$incdir
3060 BINDIR=\$(DESTDIR)$bindir
3061 DATADIR=\$(DESTDIR)$datadir
3062 MANDIR=\$(DESTDIR)$mandir
3063 SRC_PATH="$source_path"
3064 SRC_PATH_BARE=$source_path
3065 BUILD_ROOT="$PWD"
3066 CC_IDENT=$cc_ident
3067 ARCH=$arch
3068 CC=$cc
3069 AS=$as
3070 LD=$ld
3071 DEPCC=$dep_cc
3072 YASM=$yasmexe
3073 YASMDEP=$yasmexe
3074 AR=$ar
3075 RANLIB=$ranlib
3076 CP=cp -p
3077 LN_S=$ln_s
3078 STRIP=$strip
3079 CPPFLAGS=$CPPFLAGS
3080 CFLAGS=$CFLAGS
3081 ASFLAGS=$ASFLAGS
3082 CC_O=$CC_O
3083 LDFLAGS=$LDFLAGS
3084 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3085 SHFLAGS=$SHFLAGS
3086 YASMFLAGS=$YASMFLAGS
3087 BUILDSUF=$build_suffix
3088 FULLNAME=$FULLNAME
3089 LIBPREF=$LIBPREF
3090 LIBSUF=$LIBSUF
3091 LIBNAME=$LIBNAME
3092 SLIBPREF=$SLIBPREF
3093 SLIBSUF=$SLIBSUF
3094 EXESUF=$EXESUF
3095 EXTRA_VERSION=$extra_version
3096 DEPFLAGS=$DEPFLAGS
3097 CCDEP=$CCDEP
3098 ASDEP=$ASDEP
3099 CC_DEPFLAGS=$CC_DEPFLAGS
3100 AS_DEPFLAGS=$AS_DEPFLAGS
3101 HOSTCC=$host_cc
3102 HOSTCFLAGS=$host_cflags
3103 HOSTEXESUF=$HOSTEXESUF
3104 HOSTLDFLAGS=$host_ldflags
3105 HOSTLIBS=$host_libs
3106 TARGET_EXEC=$target_exec
3107 TARGET_PATH=$target_path
3108 SDL_LIBS=$sdl_libs
3109 SDL_CFLAGS=$sdl_cflags
3110 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3111 EXTRALIBS=$extralibs
3112 INSTALL=install
3113 LIBTARGET=${LIBTARGET}
3114 SLIBNAME=${SLIBNAME}
3115 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3116 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3117 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3118 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3119 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3120 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3121 SAMPLES=$samples
3122 EOF
3123
3124 get_version(){
3125     name=$1
3126     file=$source_path/$2
3127     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3128     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3129     lcname=$(tolower $name)
3130     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3131     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3132 }
3133
3134 get_version LIBSWSCALE  libswscale/swscale.h
3135 get_version LIBPOSTPROC libpostproc/postprocess.h
3136 get_version LIBAVCODEC  libavcodec/avcodec.h
3137 get_version LIBAVCORE   libavcore/avcore.h
3138 get_version LIBAVDEVICE libavdevice/avdevice.h
3139 get_version LIBAVFORMAT libavformat/avformat.h
3140 get_version LIBAVUTIL   libavutil/avutil.h
3141 get_version LIBAVFILTER libavfilter/avfilter.h
3142
3143 cat > $TMPH <<EOF
3144 /* Automatically generated by configure - do not modify! */
3145 #ifndef FFMPEG_CONFIG_H
3146 #define FFMPEG_CONFIG_H
3147 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3148 #define FFMPEG_LICENSE "$(c_escape $license)"
3149 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3150 #define CC_TYPE "$cc_type"
3151 #define CC_VERSION $cc_version
3152 #define restrict $_restrict
3153 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3154 #define EXTERN_PREFIX "${extern_prefix}"
3155 #define EXTERN_ASM ${extern_prefix}
3156 EOF
3157
3158 test -n "$malloc_prefix" &&
3159     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3160
3161 if enabled small || disabled optimizations; then
3162     echo "#undef  av_always_inline"  >> $TMPH
3163     echo "#define av_always_inline"  >> $TMPH
3164 fi
3165
3166 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3167 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3168 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3169                                       $CONFIG_EXTRA      \
3170                                       $DECODER_LIST      \
3171                                       $ENCODER_LIST      \
3172                                       $HWACCEL_LIST      \
3173                                       $PARSER_LIST       \
3174                                       $BSF_LIST          \
3175                                       $DEMUXER_LIST      \
3176                                       $MUXER_LIST        \
3177                                       $FILTER_LIST       \
3178                                       $PROTOCOL_LIST     \
3179                                       $INDEV_LIST        \
3180                                       $OUTDEV_LIST       \
3181
3182 cat >>config.mak <<EOF
3183 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3184 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3185 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3186 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3187 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3188 EOF
3189
3190 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3191 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3192
3193 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3194 cp_if_changed $TMPH config.h
3195 touch .config
3196
3197 cat > $TMPH <<EOF
3198 /* Generated by ffconf */
3199 #ifndef AVUTIL_AVCONFIG_H
3200 #define AVUTIL_AVCONFIG_H
3201 EOF
3202
3203 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3204
3205 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3206
3207 cp_if_changed $TMPH libavutil/avconfig.h
3208
3209 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
3210
3211 test -n "$WARNINGS" && printf "\n$WARNINGS"
3212
3213 # build pkg-config files
3214
3215 pkgconfig_generate(){
3216 name=$1
3217 shortname=${name#lib}${build_suffix}
3218 comment=$2
3219 version=$3
3220 libs=$4
3221 requires=$5
3222 enabled ${name#lib} || return 0
3223 cat <<EOF > $name/$name.pc
3224 prefix=$prefix
3225 exec_prefix=\${prefix}
3226 libdir=$libdir
3227 includedir=$incdir
3228
3229 Name: $name
3230 Description: $comment
3231 Version: $version
3232 Requires: $(enabled shared || echo $requires)
3233 Requires.private: $(enabled shared && echo $requires)
3234 Conflicts:
3235 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3236 Libs.private: $(enabled shared && echo $libs)
3237 Cflags: -I\${includedir}
3238 EOF
3239 cat <<EOF > $name/$name-uninstalled.pc
3240 prefix=
3241 exec_prefix=
3242 libdir=\${pcfiledir}
3243 includedir=${source_path}
3244
3245 Name: $name
3246 Description: $comment
3247 Version: $version
3248 Requires: $requires
3249 Conflicts:
3250 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3251 Cflags: -I\${includedir}
3252 EOF
3253 }
3254
3255 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3256 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3257 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3258 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3259 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3260 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3261 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3262 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"