configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avcore         disable libavcore build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable GPLed postprocessing support [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --disable-vaapi          disable VAAPI code
 112   --disable-vdpau          disable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 183                            native implementation exists [no]
 184   --enable-libvpx          enable VP8 support via libvpx [no]
 185   --enable-libx264         enable H.264 encoding via x264 [no]
 186   --enable-libxavs         enable AVS encoding via xavs [no]
 187   --enable-libxvid         enable Xvid encoding via xvidcore,
 188                            native MPEG-4/Xvid encoder exists [no]
 189   --enable-mlib            enable Sun medialib [no]
 190   --enable-zlib            enable zlib [autodetect]
 191
 192 Advanced options (experts only):
 193   --source-path=PATH       path to source code [$source_path]
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-armv5te        disable armv5te optimizations
 227   --disable-armv6          disable armv6 optimizations
 228   --disable-armv6t2        disable armv6t2 optimizations
 229   --disable-armvfp         disable ARM VFP optimizations
 230   --disable-iwmmxt         disable iwmmxt optimizations
 231   --disable-mmi            disable MMI optimizations
 232   --disable-neon           disable neon optimizations
 233   --disable-vis            disable VIS optimizations
 234   --disable-yasm           disable use of yasm assembler
 235   --enable-pic             build position-independent code
 236   --malloc-prefix=PFX      prefix malloc and related names with PFX
 237   --enable-sram            allow use of on-chip SRAM
 238
 239 Developer options (useful when working on FFmpeg itself):
 240   --disable-debug          disable debugging symbols
 241   --enable-debug=LEVEL     set the debug level [$debuglevel]
 242   --disable-optimizations  disable compiler optimizations
 243   --enable-extra-warnings  enable more compiler warnings
 244   --disable-stripping      disable stripping of executables and shared libraries
 245   --samples=PATH           location of test samples for FATE
 246
 247 NOTE: Object files are built at the place where configure is launched.
 248 EOF
 249   exit 0
 250 }
 251
 252 quotes='""'
 253
 254 log(){
 255     echo "$@" >> $logfile
 256 }
 257
 258 log_file(){
 259     log BEGIN $1
 260     pr -n -t $1 >> $logfile
 261     log END $1
 262 }
 263
 264 echolog(){
 265     log "$@"
 266     echo "$@"
 267 }
 268
 269 warn(){
 270     log "WARNING: $*"
 271     WARNINGS="${WARNINGS}WARNING: $*\n"
 272 }
 273
 274 die(){
 275     echolog "$@"
 276     cat <<EOF
 277
 278 If you think configure made a mistake, make sure you are using the latest
 279 version from SVN.  If the latest version fails, report the problem to the
 280 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 281 EOF
 282     if disabled logging; then
 283         cat <<EOF
 284 Rerun configure with logging enabled (do not use --disable-logging), and
 285 include the log this produces with your report.
 286 EOF
 287     else
 288 cat <<EOF
 289 Include the log file "$logfile" produced by configure as this will help
 290 solving the problem.
 291 EOF
 292     fi
 293     exit 1
 294 }
 295
 296 # Avoid locale weirdness, besides we really just want to translate ASCII.
 297 toupper(){
 298     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 299 }
 300
 301 tolower(){
 302     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 303 }
 304
 305 c_escape(){
 306     echo "$*" | sed 's/["\\]/\\\0/g'
 307 }
 308
 309 sh_quote(){
 310     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 311     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 312     echo "$v"
 313 }
 314
 315 filter(){
 316     pat=$1
 317     shift
 318     for v; do
 319         eval "case $v in $pat) echo $v ;; esac"
 320     done
 321 }
 322
 323 map(){
 324     m=$1
 325     shift
 326     for v; do eval $m; done
 327 }
 328
 329 set_all(){
 330     value=$1
 331     shift
 332     for var in $*; do
 333         eval $var=$value
 334     done
 335 }
 336
 337 set_weak(){
 338     value=$1
 339     shift
 340     for var; do
 341         eval : \${$var:=$value}
 342     done
 343 }
 344
 345 pushvar(){
 346     for var in $*; do
 347         eval level=\${${var}_level:=0}
 348         eval ${var}_${level}="\$$var"
 349         eval ${var}_level=$(($level+1))
 350     done
 351 }
 352
 353 popvar(){
 354     for var in $*; do
 355         eval level=\${${var}_level:-0}
 356         test $level = 0 && continue
 357         eval level=$(($level-1))
 358         eval $var="\${${var}_${level}}"
 359         eval ${var}_level=$level
 360         eval unset ${var}_${level}
 361     done
 362 }
 363
 364 enable(){
 365     set_all yes $*
 366 }
 367
 368 disable(){
 369     set_all no $*
 370 }
 371
 372 enable_weak(){
 373     set_weak yes $*
 374 }
 375
 376 disable_weak(){
 377     set_weak no $*
 378 }
 379
 380 enable_safe(){
 381     for var; do
 382         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 383     done
 384 }
 385
 386 disable_safe(){
 387     for var; do
 388         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 389     done
 390 }
 391
 392 do_enable_deep(){
 393     for var; do
 394         enabled $var && continue
 395         eval sel="\$${var}_select"
 396         eval sgs="\$${var}_suggest"
 397         pushvar var sgs
 398         enable_deep $sel
 399         popvar sgs
 400         enable_deep_weak $sgs
 401         popvar var
 402     done
 403 }
 404
 405 enable_deep(){
 406     do_enable_deep $*
 407     enable $*
 408 }
 409
 410 enable_deep_weak(){
 411     do_enable_deep $*
 412     enable_weak $*
 413 }
 414
 415 enabled(){
 416     test "${1#!}" = "$1" && op== || op=!=
 417     eval test "x\$${1#!}" $op "xyes"
 418 }
 419
 420 disabled(){
 421     test "${1#!}" = "$1" && op== || op=!=
 422     eval test "x\$${1#!}" $op "xno"
 423 }
 424
 425 enabled_all(){
 426     for opt; do
 427         enabled $opt || return 1
 428     done
 429 }
 430
 431 disabled_all(){
 432     for opt; do
 433         disabled $opt || return 1
 434     done
 435 }
 436
 437 enabled_any(){
 438     for opt; do
 439         enabled $opt && return 0
 440     done
 441 }
 442
 443 disabled_any(){
 444     for opt; do
 445         disabled $opt && return 0
 446     done
 447     return 1
 448 }
 449
 450 set_default(){
 451     for opt; do
 452         eval : \${$opt:=\$${opt}_default}
 453     done
 454 }
 455
 456 is_in(){
 457     value=$1
 458     shift
 459     for var in $*; do
 460         [ $var = $value ] && return 0
 461     done
 462     return 1
 463 }
 464
 465 check_deps(){
 466     for cfg; do
 467         cfg="${cfg#!}"
 468         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 469         disabled ${cfg}_checking && continue
 470         enable ${cfg}_checking
 471
 472         eval dep_all="\$${cfg}_deps"
 473         eval dep_any="\$${cfg}_deps_any"
 474         eval dep_sel="\$${cfg}_select"
 475         eval dep_sgs="\$${cfg}_suggest"
 476         eval dep_ifa="\$${cfg}_if"
 477         eval dep_ifn="\$${cfg}_if_any"
 478
 479         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 480         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 481         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 482
 483         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 484         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 485         enabled_all  $dep_all || disable $cfg
 486         enabled_any  $dep_any || disable $cfg
 487         disabled_any $dep_sel && disable $cfg
 488
 489         if enabled $cfg; then
 490             eval dep_extralibs="\$${cfg}_extralibs"
 491             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 492             enable_deep $dep_sel
 493             enable_deep_weak $dep_sgs
 494         fi
 495
 496         disable ${cfg}_checking
 497     done
 498 }
 499
 500 print_config_h(){
 501     enabled $1 && v=1 || v=0
 502     echo "#define $2 $v"
 503 }
 504
 505 print_config_mak(){
 506     enabled $1 && v= || v=!
 507     echo "$v$2=yes"
 508 }
 509
 510 print_config_asm(){
 511     enabled $1 && echo "%define $2"
 512 }
 513
 514 print_config(){
 515     pfx=$1
 516     files=$2
 517     shift 2
 518     for cfg; do
 519         ucname="$(toupper $cfg)"
 520         for f in $files; do
 521             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 522         done
 523     done
 524 }
 525
 526 print_enabled(){
 527     test "$1" = -n && end=" " && shift || end="\n"
 528     suf=$1
 529     shift
 530     for v; do
 531         enabled $v && printf "%s$end" ${v%$suf};
 532     done
 533 }
 534
 535 append(){
 536     var=$1
 537     shift
 538     eval "$var=\"\$$var $*\""
 539 }
 540
 541 prepend(){
 542     var=$1
 543     shift
 544     eval "$var=\"$* \$$var\""
 545 }
 546
 547 add_cppflags(){
 548     append CPPFLAGS $($filter_cppflags "$@")
 549 }
 550
 551 add_cflags(){
 552     append CFLAGS $($filter_cflags "$@")
 553 }
 554
 555 add_asflags(){
 556     append ASFLAGS $($filter_asflags "$@")
 557 }
 558
 559 add_ldflags(){
 560     append LDFLAGS "$@"
 561 }
 562
 563 add_extralibs(){
 564     prepend extralibs "$@"
 565 }
 566
 567 check_cmd(){
 568     log "$@"
 569     "$@" >> $logfile 2>&1
 570 }
 571
 572 check_cc(){
 573     log check_cc "$@"
 574     cat > $TMPC
 575     log_file $TMPC
 576     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 577 }
 578
 579 check_cpp(){
 580     log check_cpp "$@"
 581     cat > $TMPC
 582     log_file $TMPC
 583     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 584 }
 585
 586 check_as(){
 587     log check_as "$@"
 588     cat > $TMPC
 589     log_file $TMPC
 590     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 591 }
 592
 593 check_asm(){
 594     log check_asm "$@"
 595     name="$1"
 596     code="$2"
 597     shift 2
 598     disable $name
 599     check_as "$@" <<EOF && enable $name
 600 void foo(void){ __asm__ volatile($code); }
 601 EOF
 602 }
 603
 604 check_yasm(){
 605     log check_yasm "$@"
 606     echo "$1" > $TMPS
 607     log_file $TMPS
 608     shift 1
 609     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 610 }
 611
 612 check_ld(){
 613     log check_ld "$@"
 614     flags=''
 615     libs=''
 616     for f; do
 617         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 618     done
 619     check_cc $($filter_cflags $flags) || return
 620     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 621 }
 622
 623 check_cppflags(){
 624     log check_cppflags "$@"
 625     set -- $($filter_cppflags "$@")
 626     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 627 int x;
 628 EOF
 629 }
 630
 631 check_cflags(){
 632     log check_cflags "$@"
 633     set -- $($filter_cflags "$@")
 634     check_cc "$@" <<EOF && append CFLAGS "$@"
 635 int x;
 636 EOF
 637 }
 638
 639 test_ldflags(){
 640     log test_ldflags "$@"
 641     check_ld "$@" <<EOF
 642 int main(void){ return 0; }
 643 EOF
 644 }
 645
 646 check_ldflags(){
 647     log check_ldflags "$@"
 648     test_ldflags "$@" && add_ldflags "$@"
 649 }
 650
 651 check_header(){
 652     log check_header "$@"
 653     header=$1
 654     shift
 655     disable_safe $header
 656     check_cpp "$@" <<EOF && enable_safe $header
 657 #include <$header>
 658 int x;
 659 EOF
 660 }
 661
 662 check_func(){
 663     log check_func "$@"
 664     func=$1
 665     shift
 666     disable $func
 667     check_ld "$@" <<EOF && enable $func
 668 extern int $func();
 669 int main(void){ $func(); }
 670 EOF
 671 }
 672
 673 check_mathfunc(){
 674     log check_mathfunc "$@"
 675     func=$1
 676     shift
 677     disable $func
 678     check_ld "$@" <<EOF && enable $func
 679 #include <math.h>
 680 float foo(float f) { return $func(f); }
 681 int main(void){ return 0; }
 682 EOF
 683 }
 684
 685 check_func_headers(){
 686     log check_func_headers "$@"
 687     headers=$1
 688     func=$2
 689     shift 2
 690     disable $func
 691     incs=""
 692     for hdr in $headers; do
 693         incs="$incs
 694 #include <$hdr>"
 695     done
 696     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 697 $incs
 698 int main(int argc, char **argv){
 699     return (long) $func;
 700 }
 701 EOF
 702 }
 703
 704 check_cpp_condition(){
 705     log check_cpp_condition "$@"
 706     header=$1
 707     condition=$2
 708     shift 2
 709     check_cpp $($filter_cppflags "$@") <<EOF
 710 #include <$header>
 711 #if !($condition)
 712 #error "unsatisfied condition: $condition"
 713 #endif
 714 EOF
 715 }
 716
 717 check_lib(){
 718     log check_lib "$@"
 719     header="$1"
 720     func="$2"
 721     shift 2
 722     check_header $header && check_func $func "$@" && add_extralibs "$@"
 723 }
 724
 725 check_lib2(){
 726     log check_lib2 "$@"
 727     headers="$1"
 728     func="$2"
 729     shift 2
 730     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 731 }
 732
 733 check_exec(){
 734     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 735 }
 736
 737 check_exec_crash(){
 738     code=$(cat)
 739
 740     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 741     # are safe but may not be available everywhere.  Thus we use
 742     # raise(SIGTERM) instead.  The check is run in a subshell so we
 743     # can redirect the "Terminated" message from the shell.  SIGBUS
 744     # is not defined by standard C so it is used conditionally.
 745
 746     (check_exec "$@") >> $logfile 2>&1 <<EOF
 747 #include <signal.h>
 748 static void sighandler(int sig){
 749     raise(SIGTERM);
 750 }
 751 int main(void){
 752     signal(SIGILL, sighandler);
 753     signal(SIGFPE, sighandler);
 754     signal(SIGSEGV, sighandler);
 755 #ifdef SIGBUS
 756     signal(SIGBUS, sighandler);
 757 #endif
 758     { $code }
 759 }
 760 EOF
 761 }
 762
 763 check_type(){
 764     log check_type "$@"
 765     headers=$1
 766     type=$2
 767     shift 2
 768     disable_safe "$type"
 769     incs=""
 770     for hdr in $headers; do
 771         incs="$incs
 772 #include <$hdr>"
 773     done
 774     check_cc "$@" <<EOF && enable_safe "$type"
 775 $incs
 776 $type v;
 777 EOF
 778 }
 779
 780 check_struct(){
 781     log check_type "$@"
 782     headers=$1
 783     struct=$2
 784     member=$3
 785     shift 3
 786     disable_safe "${struct}_${member}"
 787     incs=""
 788     for hdr in $headers; do
 789         incs="$incs
 790 #include <$hdr>"
 791     done
 792     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 793 $incs
 794 const void *p = &(($struct *)0)->$member;
 795 EOF
 796 }
 797
 798 require(){
 799     name="$1"
 800     header="$2"
 801     func="$3"
 802     shift 3
 803     check_lib $header $func "$@" || die "ERROR: $name not found"
 804 }
 805
 806 require2(){
 807     name="$1"
 808     headers="$2"
 809     func="$3"
 810     shift 3
 811     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 812 }
 813
 814 check_host_cc(){
 815     log check_host_cc "$@"
 816     cat > $TMPC
 817     log_file $TMPC
 818     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 819 }
 820
 821 check_host_cflags(){
 822     log check_host_cflags "$@"
 823     check_host_cc "$@" <<EOF && append host_cflags "$@"
 824 int x;
 825 EOF
 826 }
 827
 828 apply(){
 829     file=$1
 830     shift
 831     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 832 }
 833
 834 cp_if_changed(){
 835     cmp -s "$1" "$2" &&
 836         echo "$2 is unchanged" ||
 837         cp -f "$1" "$2"
 838 }
 839
 840 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 841 # system-dependent things.
 842
 843 COMPONENT_LIST="
 844     bsfs
 845     decoders
 846     demuxers
 847     encoders
 848     filters
 849     hwaccels
 850     indevs
 851     muxers
 852     outdevs
 853     parsers
 854     protocols
 855 "
 856
 857 CONFIG_LIST="
 858     $COMPONENT_LIST
 859     aandct
 860     avcodec
 861     avcore
 862     avdevice
 863     avfilter
 864     avformat
 865     avisynth
 866     bzlib
 867     dct
 868     doc
 869     dwt
 870     dxva2
 871     fastdiv
 872     ffmpeg
 873     ffplay
 874     ffprobe
 875     ffserver
 876     fft
 877     frei0r
 878     golomb
 879     gpl
 880     gray
 881     h264dsp
 882     h264pred
 883     hardcoded_tables
 884     huffman
 885     libdc1394
 886     libdirac
 887     libfaac
 888     libgsm
 889     libmp3lame
 890     libnut
 891     libopencore_amrnb
 892     libopencore_amrwb
 893     libopencv
 894     libopenjpeg
 895     librtmp
 896     libschroedinger
 897     libspeex
 898     libtheora
 899     libvorbis
 900     libvpx
 901     libx264
 902     libxavs
 903     libxvid
 904     lpc
 905     lsp
 906     mdct
 907     memalign_hack
 908     mlib
 909     mpegaudio_hp
 910     network
 911     nonfree
 912     pic
 913     postproc
 914     rdft
 915     runtime_cpudetect
 916     shared
 917     small
 918     sram
 919     static
 920     swscale
 921     swscale_alpha
 922     vaapi
 923     vdpau
 924     version3
 925     x11grab
 926     zlib
 927 "
 928
 929 THREADS_LIST='
 930     pthreads
 931     w32threads
 932 '
 933
 934 ARCH_LIST='
 935     alpha
 936     arm
 937     avr32
 938     avr32_ap
 939     avr32_uc
 940     bfin
 941     ia64
 942     m68k
 943     mips
 944     mips64
 945     parisc
 946     ppc
 947     ppc64
 948     s390
 949     sh4
 950     sparc
 951     sparc64
 952     tomi
 953     x86
 954     x86_32
 955     x86_64
 956 '
 957
 958 ARCH_EXT_LIST='
 959     altivec
 960     amd3dnow
 961     amd3dnowext
 962     armv5te
 963     armv6
 964     armv6t2
 965     armvfp
 966     iwmmxt
 967     mmi
 968     mmx
 969     mmx2
 970     neon
 971     ppc4xx
 972     sse
 973     ssse3
 974     vis
 975 '
 976
 977 HAVE_LIST_PUB='
 978     bigendian
 979     fast_unaligned
 980 '
 981
 982 HAVE_LIST="
 983     $ARCH_EXT_LIST
 984     $HAVE_LIST_PUB
 985     $THREADS_LIST
 986     aligned_stack
 987     alsa_asoundlib_h
 988     altivec_h
 989     arpa_inet_h
 990     attribute_may_alias
 991     attribute_packed
 992     bswap
 993     closesocket
 994     cmov
 995     conio_h
 996     dcbzl
 997     dev_bktr_ioctl_bt848_h
 998     dev_bktr_ioctl_meteor_h
 999     dev_ic_bt8xx_h
1000     dev_video_meteor_ioctl_meteor_h
1001     dev_video_bktr_ioctl_bt848_h
1002     dlfcn_h
1003     dlopen
1004     dos_paths
1005     ebp_available
1006     ebx_available
1007     exp2
1008     exp2f
1009     fast_64bit
1010     fast_clz
1011     fast_cmov
1012     fcntl
1013     fork
1014     getaddrinfo
1015     gethrtime
1016     GetProcessMemoryInfo
1017     GetProcessTimes
1018     getrusage
1019     gnu_as
1020     struct_rusage_ru_maxrss
1021     ibm_asm
1022     inet_aton
1023     inline_asm
1024     isatty
1025     ldbrx
1026     libdc1394_1
1027     libdc1394_2
1028     llrint
1029     llrintf
1030     local_aligned_16
1031     local_aligned_8
1032     log2
1033     log2f
1034     loongson
1035     lrint
1036     lrintf
1037     lzo1x_999_compress
1038     machine_ioctl_bt848_h
1039     machine_ioctl_meteor_h
1040     malloc_h
1041     memalign
1042     mkstemp
1043     pld
1044     posix_memalign
1045     round
1046     roundf
1047     sdl
1048     sdl_video_size
1049     setmode
1050     socklen_t
1051     soundcard_h
1052     poll_h
1053     setrlimit
1054     strerror_r
1055     strtok_r
1056     struct_addrinfo
1057     struct_ipv6_mreq
1058     struct_sockaddr_in6
1059     struct_sockaddr_sa_len
1060     struct_sockaddr_storage
1061     symver
1062     symver_gnu_asm
1063     symver_asm_label
1064     sys_mman_h
1065     sys_resource_h
1066     sys_select_h
1067     sys_soundcard_h
1068     sys_videoio_h
1069     ten_operands
1070     termios_h
1071     threads
1072     truncf
1073     vfp_args
1074     VirtualAlloc
1075     winsock2_h
1076     xform_asm
1077     xmm_clobbers
1078     yasm
1079 "
1080
1081 # options emitted with CONFIG_ prefix but not available on command line
1082 CONFIG_EXTRA="
1083     avutil
1084     gplv3
1085     lgplv3
1086 "
1087
1088 CMDLINE_SELECT="
1089     $ARCH_EXT_LIST
1090     $CONFIG_LIST
1091     $THREADS_LIST
1092     asm
1093     cross_compile
1094     debug
1095     extra_warnings
1096     logging
1097     optimizations
1098     stripping
1099     yasm
1100 "
1101
1102 PATHS_LIST='
1103     bindir
1104     datadir
1105     incdir
1106     libdir
1107     mandir
1108     prefix
1109     shlibdir
1110 '
1111
1112 CMDLINE_SET="
1113     $PATHS_LIST
1114     ar
1115     arch
1116     as
1117     build_suffix
1118     cc
1119     cpu
1120     cross_prefix
1121     dep_cc
1122     extra_version
1123     host_cc
1124     host_cflags
1125     host_ldflags
1126     host_libs
1127     host_os
1128     ld
1129     logfile
1130     malloc_prefix
1131     nm
1132     samples
1133     source_path
1134     strip
1135     sysinclude
1136     sysroot
1137     target_exec
1138     target_os
1139     target_path
1140 "
1141
1142 CMDLINE_APPEND="
1143     extra_cflags
1144 "
1145
1146 # code dependency declarations
1147
1148 # architecture extensions
1149
1150 armv5te_deps="arm"
1151 armv6_deps="arm"
1152 armv6t2_deps="arm"
1153 armvfp_deps="arm"
1154 iwmmxt_deps="arm"
1155 neon_deps="arm"
1156
1157 mmi_deps="mips"
1158
1159 altivec_deps="ppc"
1160 ppc4xx_deps="ppc"
1161
1162 vis_deps="sparc"
1163
1164 x86_64_suggest="cmov fast_cmov"
1165 amd3dnow_deps="mmx"
1166 amd3dnowext_deps="amd3dnow"
1167 mmx_deps="x86"
1168 mmx2_deps="mmx"
1169 sse_deps="mmx"
1170 ssse3_deps="sse"
1171
1172 aligned_stack_if_any="ppc x86"
1173 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1174 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1175 fast_unaligned_if_any="armv6 ppc x86"
1176
1177 need_memalign="altivec neon sse"
1178 inline_asm_deps="!tms470"
1179
1180 symver_if_any="symver_asm_label symver_gnu_asm"
1181
1182 # subsystems
1183 dct_select="rdft"
1184 mdct_select="fft"
1185 rdft_select="fft"
1186
1187 # decoders / encoders / hardware accelerators
1188 aac_decoder_select="mdct rdft"
1189 aac_encoder_select="mdct"
1190 ac3_decoder_select="mdct ac3_parser"
1191 alac_encoder_select="lpc"
1192 amrnb_decoder_select="lsp"
1193 atrac1_decoder_select="mdct"
1194 atrac3_decoder_select="mdct"
1195 binkaudio_dct_decoder_select="mdct rdft dct"
1196 binkaudio_rdft_decoder_select="mdct rdft"
1197 cavs_decoder_select="golomb"
1198 cook_decoder_select="mdct"
1199 cscd_decoder_suggest="zlib"
1200 dca_decoder_select="mdct"
1201 dnxhd_encoder_select="aandct"
1202 dxa_decoder_select="zlib"
1203 eac3_decoder_select="ac3_decoder"
1204 eamad_decoder_select="aandct"
1205 eatgq_decoder_select="aandct"
1206 eatqi_decoder_select="aandct"
1207 ffv1_decoder_select="golomb"
1208 flac_decoder_select="golomb"
1209 flac_encoder_select="golomb lpc"
1210 flashsv_decoder_select="zlib"
1211 flashsv_encoder_select="zlib"
1212 flv_decoder_select="h263_decoder"
1213 flv_encoder_select="h263_encoder"
1214 fraps_decoder_select="huffman"
1215 h261_encoder_select="aandct"
1216 h263_decoder_select="h263_parser"
1217 h263_encoder_select="aandct"
1218 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1219 h263i_decoder_select="h263_decoder"
1220 h263p_encoder_select="h263_encoder"
1221 h264_decoder_select="golomb h264dsp h264pred"
1222 h264_dxva2_hwaccel_deps="dxva2api_h"
1223 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1224 h264_vaapi_hwaccel_select="vaapi"
1225 h264_vdpau_decoder_select="vdpau h264_decoder"
1226 imc_decoder_select="fft mdct"
1227 jpegls_decoder_select="golomb"
1228 jpegls_encoder_select="golomb"
1229 ljpeg_encoder_select="aandct"
1230 loco_decoder_select="golomb"
1231 mjpeg_encoder_select="aandct"
1232 mlp_decoder_select="mlp_parser"
1233 mp1float_decoder_select="dct"
1234 mp2float_decoder_select="dct"
1235 mp3adufloat_decoder_select="dct"
1236 mp3float_decoder_select="dct"
1237 mp3on4float_decoder_select="dct"
1238 mpeg1video_encoder_select="aandct"
1239 mpeg2video_encoder_select="aandct"
1240 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1241 mpeg4_encoder_select="h263_encoder"
1242 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1243 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1244 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1245 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1246 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1247 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1248 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1249 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1250 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1251 msmpeg4v1_decoder_select="h263_decoder"
1252 msmpeg4v1_encoder_select="h263_encoder"
1253 msmpeg4v2_decoder_select="h263_decoder"
1254 msmpeg4v2_encoder_select="h263_encoder"
1255 msmpeg4v3_decoder_select="h263_decoder"
1256 msmpeg4v3_encoder_select="h263_encoder"
1257 nellymoser_decoder_select="mdct"
1258 nellymoser_encoder_select="mdct"
1259 png_decoder_select="zlib"
1260 png_encoder_select="zlib"
1261 qcelp_decoder_select="lsp"
1262 qdm2_decoder_select="mdct rdft"
1263 ra_144_encoder_select="lpc"
1264 rv10_decoder_select="h263_decoder"
1265 rv10_encoder_select="h263_encoder"
1266 rv20_decoder_select="h263_decoder"
1267 rv20_encoder_select="h263_encoder"
1268 rv30_decoder_select="golomb h264pred"
1269 rv40_decoder_select="golomb h264pred"
1270 shorten_decoder_select="golomb"
1271 sipr_decoder_select="lsp"
1272 snow_decoder_select="dwt"
1273 snow_encoder_select="aandct dwt"
1274 sonic_decoder_select="golomb"
1275 sonic_encoder_select="golomb"
1276 sonic_ls_encoder_select="golomb"
1277 svq1_encoder_select="aandct"
1278 svq3_decoder_select="golomb h264dsp h264pred"
1279 svq3_decoder_suggest="zlib"
1280 theora_decoder_select="vp3_decoder"
1281 tiff_decoder_suggest="zlib"
1282 tiff_encoder_suggest="zlib"
1283 truehd_decoder_select="mlp_decoder"
1284 tscc_decoder_select="zlib"
1285 twinvq_decoder_select="mdct lsp"
1286 vc1_decoder_select="h263_decoder"
1287 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1288 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1289 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1290 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1291 vorbis_decoder_select="mdct"
1292 vorbis_encoder_select="mdct"
1293 vp6_decoder_select="huffman"
1294 vp6a_decoder_select="vp6_decoder"
1295 vp6f_decoder_select="vp6_decoder"
1296 vp8_decoder_select="h264pred"
1297 wmapro_decoder_select="mdct"
1298 wmav1_decoder_select="mdct"
1299 wmav1_encoder_select="mdct"
1300 wmav2_decoder_select="mdct"
1301 wmav2_encoder_select="mdct"
1302 wmavoice_decoder_select="lsp rdft dct mdct"
1303 wmv1_decoder_select="h263_decoder"
1304 wmv1_encoder_select="h263_encoder"
1305 wmv2_decoder_select="h263_decoder"
1306 wmv2_encoder_select="h263_encoder"
1307 wmv3_decoder_select="vc1_decoder"
1308 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1309 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1310 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1311 zlib_decoder_select="zlib"
1312 zlib_encoder_select="zlib"
1313 zmbv_decoder_select="zlib"
1314 zmbv_encoder_select="zlib"
1315
1316 vaapi_deps="va_va_h"
1317 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1318
1319 # parsers
1320 h264_parser_select="golomb h264dsp h264pred"
1321
1322 # external libraries
1323 libdirac_decoder_deps="libdirac !libschroedinger"
1324 libdirac_encoder_deps="libdirac"
1325 libfaac_encoder_deps="libfaac"
1326 libgsm_decoder_deps="libgsm"
1327 libgsm_encoder_deps="libgsm"
1328 libgsm_ms_decoder_deps="libgsm"
1329 libgsm_ms_encoder_deps="libgsm"
1330 libmp3lame_encoder_deps="libmp3lame"
1331 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1332 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1333 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1334 libopenjpeg_decoder_deps="libopenjpeg"
1335 libschroedinger_decoder_deps="libschroedinger"
1336 libschroedinger_encoder_deps="libschroedinger"
1337 libspeex_decoder_deps="libspeex"
1338 libtheora_encoder_deps="libtheora"
1339 libvorbis_encoder_deps="libvorbis"
1340 libvpx_decoder_deps="libvpx"
1341 libvpx_encoder_deps="libvpx"
1342 libx264_encoder_deps="libx264"
1343 libxavs_encoder_deps="libxavs"
1344 libxvid_encoder_deps="libxvid"
1345
1346 # demuxers / muxers
1347 ac3_demuxer_deps="ac3_parser"
1348 asf_stream_muxer_select="asf_muxer"
1349 avisynth_demuxer_deps="avisynth"
1350 dirac_demuxer_deps="dirac_parser"
1351 eac3_demuxer_select="ac3_parser"
1352 ipod_muxer_select="mov_muxer"
1353 libnut_demuxer_deps="libnut"
1354 libnut_muxer_deps="libnut"
1355 matroska_audio_muxer_select="matroska_muxer"
1356 matroska_demuxer_suggest="zlib bzlib"
1357 mov_demuxer_suggest="zlib"
1358 mp3_demuxer_deps="mpegaudio_parser"
1359 mp4_muxer_select="mov_muxer"
1360 mpegtsraw_demuxer_select="mpegts_demuxer"
1361 mxf_d10_muxer_select="mxf_muxer"
1362 ogg_demuxer_select="golomb"
1363 psp_muxer_select="mov_muxer"
1364 rtsp_demuxer_select="http_protocol sdp_demuxer"
1365 rtsp_muxer_select="rtp_muxer http_protocol sdp_demuxer"
1366 sdp_demuxer_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1367 spdif_muxer_select="aac_parser"
1368 tg2_muxer_select="mov_muxer"
1369 tgp_muxer_select="mov_muxer"
1370 w64_demuxer_deps="wav_demuxer"
1371
1372 # indevs / outdevs
1373 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1374 alsa_outdev_deps="alsa_asoundlib_h"
1375 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1376 dv1394_indev_deps="dv1394 dv_demuxer"
1377 jack_indev_deps="jack_jack_h"
1378 libdc1394_indev_deps="libdc1394"
1379 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1380 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1381 v4l_indev_deps="linux_videodev_h"
1382 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1383 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1384 vfwcap_indev_extralibs="-lavicap32"
1385 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1386 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1387
1388 # protocols
1389 gopher_protocol_deps="network"
1390 http_protocol_deps="network"
1391 http_protocol_select="tcp_protocol"
1392 mmsh_protocol_select="http_protocol"
1393 mmst_protocol_deps="network"
1394 rtmp_protocol_select="tcp_protocol"
1395 rtp_protocol_select="udp_protocol"
1396 tcp_protocol_deps="network"
1397 udp_protocol_deps="network"
1398
1399 # filters
1400 blackframe_filter_deps="gpl"
1401 frei0r_filter_deps="frei0r dlopen strtok_r"
1402 ocv_smooth_filter_deps="libopencv"
1403 yadif_filter_deps="gpl"
1404
1405 # libraries
1406 avdevice_deps="avcodec avformat"
1407 avformat_deps="avcodec"
1408
1409 # programs
1410 ffmpeg_deps="avcodec avformat swscale"
1411 ffmpeg_select="buffer_filter"
1412 ffplay_deps="avcodec avformat swscale sdl"
1413 ffplay_select="rdft"
1414 ffprobe_deps="avcodec avformat"
1415 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1416 ffserver_extralibs='$ldl'
1417
1418 doc_deps="texi2html"
1419
1420 # tests
1421
1422 test_deps(){
1423     suf1=$1
1424     suf2=$2
1425     shift 2
1426     for v; do
1427         dep=${v%=*}
1428         tests=${v#*=}
1429         for name in ${tests}; do
1430             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1431         done
1432     done
1433 }
1434
1435 set_ne_test_deps(){
1436     eval ${1}_be_test_deps="bigendian"
1437     eval ${1}_le_test_deps="!bigendian"
1438 }
1439
1440 test_deps _encoder _decoder                                             \
1441     ac3                                                                 \
1442     adpcm_g726=g726                                                     \
1443     adpcm_ima_qt                                                        \
1444     adpcm_ima_wav                                                       \
1445     adpcm_ms                                                            \
1446     adpcm_swf                                                           \
1447     adpcm_yamaha=adpcm_yam                                              \
1448     alac                                                                \
1449     asv1                                                                \
1450     asv2                                                                \
1451     bmp                                                                 \
1452     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1453     dvvideo="dv dv50"                                                   \
1454     ffv1                                                                \
1455     flac                                                                \
1456     flashsv                                                             \
1457     flv                                                                 \
1458     gif                                                                 \
1459     h261                                                                \
1460     h263="h263 h263p"                                                   \
1461     huffyuv                                                             \
1462     jpegls                                                              \
1463     mjpeg="jpg mjpeg ljpeg"                                             \
1464     mp2                                                                 \
1465     mpeg1video="mpeg mpeg1b"                                            \
1466     mpeg2video="mpeg2 mpeg2thread"                                      \
1467     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1468     msmpeg4v3=msmpeg4                                                   \
1469     msmpeg4v2                                                           \
1470     pbm=pbmpipe                                                         \
1471     pcx                                                                 \
1472     pgm="pgm pgmpipe"                                                   \
1473     ppm="ppm ppmpipe"                                                   \
1474     rawvideo="rgb yuv"                                                  \
1475     roq                                                                 \
1476     rv10                                                                \
1477     rv20                                                                \
1478     sgi                                                                 \
1479     snow="snow snowll"                                                  \
1480     svq1                                                                \
1481     targa=tga                                                           \
1482     tiff                                                                \
1483     wmav1                                                               \
1484     wmav2                                                               \
1485     wmv1                                                                \
1486     wmv2                                                                \
1487
1488 test_deps _muxer _demuxer                                               \
1489     aiff                                                                \
1490     pcm_alaw=alaw                                                       \
1491     asf                                                                 \
1492     au                                                                  \
1493     avi                                                                 \
1494     dv=dv_fmt                                                           \
1495     ffm                                                                 \
1496     flv=flv_fmt                                                         \
1497     gxf                                                                 \
1498     matroska=mkv                                                        \
1499     mmf                                                                 \
1500     mov                                                                 \
1501     pcm_mulaw=mulaw                                                     \
1502     mxf                                                                 \
1503     nut                                                                 \
1504     ogg                                                                 \
1505     rawvideo=pixfmt                                                     \
1506     rm                                                                  \
1507     swf                                                                 \
1508     mpegts=ts                                                           \
1509     voc                                                                 \
1510     wav                                                                 \
1511     yuv4mpegpipe=yuv4mpeg                                               \
1512
1513 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1514
1515 set_ne_test_deps pixdesc
1516 set_ne_test_deps pixfmts_crop
1517 set_ne_test_deps pixfmts_hflip
1518 set_ne_test_deps pixfmts_null
1519 set_ne_test_deps pixfmts_pad
1520 set_ne_test_deps pixfmts_scale
1521 set_ne_test_deps pixfmts_vflip
1522
1523 # default parameters
1524
1525 logfile="config.log"
1526
1527 # installation paths
1528 prefix_default="/usr/local"
1529 bindir_default='${prefix}/bin'
1530 datadir_default='${prefix}/share/ffmpeg'
1531 incdir_default='${prefix}/include'
1532 libdir_default='${prefix}/lib'
1533 mandir_default='${prefix}/share/man'
1534 shlibdir_default="$libdir_default"
1535
1536 # toolchain
1537 ar_default="ar"
1538 cc_default="gcc"
1539 cc_version=\"unknown\"
1540 host_cc_default="gcc"
1541 ln_s="ln -sf"
1542 nm_default="nm"
1543 objformat="elf"
1544 ranlib="ranlib"
1545 strip_default="strip"
1546 yasmexe="yasm"
1547 nogas=":"
1548
1549 nm_opts='-g'
1550
1551 # machine
1552 arch_default=$(uname -m)
1553 cpu="generic"
1554
1555 # OS
1556 target_os_default=$(tolower $(uname -s))
1557 host_os=$target_os_default
1558
1559 # configurable options
1560 enable avcodec
1561 enable avcore
1562 enable avdevice
1563 enable avfilter
1564 enable avformat
1565 enable avutil
1566 enable asm
1567 enable debug
1568 enable doc
1569 enable fastdiv
1570 enable ffmpeg
1571 enable ffplay
1572 enable ffprobe
1573 enable ffserver
1574 enable mpegaudio_hp
1575 enable network
1576 enable optimizations
1577 enable protocols
1578 enable static
1579 enable stripping
1580 enable swscale
1581 enable swscale_alpha
1582
1583 # build settings
1584 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1585 FFSERVERLDFLAGS=-Wl,-E
1586 LIBPREF="lib"
1587 LIBSUF=".a"
1588 FULLNAME='$(NAME)$(BUILDSUF)'
1589 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1590 SLIBPREF="lib"
1591 SLIBSUF=".so"
1592 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1593 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1594 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1595 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1596
1597 CC_O='-o $@'
1598
1599 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1600 host_libs='-lm'
1601
1602 target_path='$(CURDIR)'
1603
1604 # since the object filename is not given with the -MM flag, the compiler
1605 # is only able to print the basename, and we must add the path ourselves
1606 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1607 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1608
1609 # find source path
1610 source_path="$(dirname "$0")"
1611 enable source_path_used
1612 if test -f configure; then
1613     source_path="$(pwd)"
1614     disable source_path_used
1615 else
1616     source_path="$(cd "$source_path"; pwd)"
1617     echo "$source_path" | grep -q '[[:blank:]]' &&
1618         die "Out of tree builds are impossible with whitespace in source path."
1619     test -e "$source_path/config.h" &&
1620         die "Out of tree builds are impossible with config.h in source dir."
1621 fi
1622
1623 for v in "$@"; do
1624     r=${v#*=}
1625     l=${v%"$r"}
1626     r=$(sh_quote "$r")
1627     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1628 done
1629
1630 find_things(){
1631     thing=$1
1632     pattern=$2
1633     file=$source_path/$3
1634     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1635 }
1636
1637 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1638 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1639 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1640 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1641 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1642 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1643 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1644 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1645 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1646 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1647 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1648
1649 find_tests(){
1650     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1651 }
1652
1653 ACODEC_TESTS=$(find_tests acodec)
1654 VCODEC_TESTS=$(find_tests vsynth1)
1655 LAVF_TESTS=$(find_tests lavf)
1656 LAVFI_TESTS=$(find_tests lavfi)
1657 SEEK_TESTS=$(find_tests seek seek_)
1658
1659 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1660
1661 for n in $COMPONENT_LIST; do
1662     v=$(toupper ${n%s})_LIST
1663     eval enable \$$v
1664     eval ${n}_if_any="\$$v"
1665 done
1666
1667 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1668
1669 die_unknown(){
1670     echo "Unknown option \"$1\"."
1671     echo "See $0 --help for available options."
1672     exit 1
1673 }
1674
1675 show_list() {
1676     suffix=_$1
1677     shift
1678     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1679     exit 0
1680 }
1681
1682 for opt do
1683     optval="${opt#*=}"
1684     case "$opt" in
1685     --extra-ldflags=*) add_ldflags $optval
1686     ;;
1687     --extra-libs=*) add_extralibs $optval
1688     ;;
1689     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1690     ;;
1691     --enable-debug=*) debuglevel="$optval"
1692     ;;
1693     --disable-everything)
1694     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1695     ;;
1696     --enable-*=*|--disable-*=*)
1697     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1698     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1699     eval list=\$$(toupper $thing)_LIST
1700     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1701     $action $(filter "$name" $list)
1702     ;;
1703     --enable-?*|--disable-?*)
1704     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1705     if is_in $option $COMPONENT_LIST; then
1706         test $action = disable && action=unset
1707         eval $action \$$(toupper ${option%s})_LIST
1708     elif is_in $option $CMDLINE_SELECT; then
1709         $action $option
1710     else
1711         die_unknown $opt
1712     fi
1713     ;;
1714     --list-*)
1715         NAME="${opt#--list-}"
1716         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1717         NAME=${NAME%s}
1718         eval show_list $NAME \$$(toupper $NAME)_LIST
1719     ;;
1720     --help|-h) show_help
1721     ;;
1722     *)
1723     optname="${opt%%=*}"
1724     optname="${optname#--}"
1725     optname=$(echo "$optname" | sed 's/-/_/g')
1726     if is_in $optname $CMDLINE_SET; then
1727         eval $optname='$optval'
1728     elif is_in $optname $CMDLINE_APPEND; then
1729         append $optname "$optval"
1730     else
1731          die_unknown $opt
1732     fi
1733     ;;
1734     esac
1735 done
1736
1737 disabled logging && logfile=/dev/null
1738
1739 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1740 set >> $logfile
1741
1742 test -n "$cross_prefix" && enable cross_compile
1743
1744 if enabled cross_compile; then
1745     test -n "$arch" && test -n "$target_os" ||
1746         die "Must specify target arch and OS when cross-compiling"
1747 fi
1748
1749 set_default arch target_os
1750
1751 ar_default="${cross_prefix}${ar_default}"
1752 cc_default="${cross_prefix}${cc_default}"
1753 nm_default="${cross_prefix}${nm_default}"
1754 ranlib="${cross_prefix}${ranlib}"
1755 strip_default="${cross_prefix}${strip_default}"
1756
1757 sysinclude_default="${sysroot}/usr/include"
1758
1759 set_default cc nm strip sysinclude
1760 enabled cross_compile || host_cc_default=$cc
1761 set_default host_cc
1762
1763 exesuf() {
1764     case $1 in
1765         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1766     esac
1767 }
1768
1769 EXESUF=$(exesuf $target_os)
1770 HOSTEXESUF=$(exesuf $host_os)
1771
1772 # set temporary file name
1773 : ${TMPDIR:=$TEMPDIR}
1774 : ${TMPDIR:=$TMP}
1775 : ${TMPDIR:=/tmp}
1776
1777 if ! check_cmd type mktemp; then
1778     # simple replacement for missing mktemp
1779     # NOT SAFE FOR GENERAL USE
1780     mktemp(){
1781         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1782     }
1783 fi
1784
1785 tmpfile(){
1786     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1787         (set -C; exec > $tmp) 2>/dev/null ||
1788         die "Unable to create temporary file in $TMPDIR."
1789     append TMPFILES $tmp
1790     eval $1=$tmp
1791 }
1792
1793 trap 'rm -f -- $TMPFILES' EXIT
1794 trap exit HUP INT TERM
1795
1796 tmpfile TMPC  .c
1797 tmpfile TMPE  $EXESUF
1798 tmpfile TMPH  .h
1799 tmpfile TMPO  .o
1800 tmpfile TMPS  .S
1801 tmpfile TMPV  .ver
1802 tmpfile TMPSH .sh
1803 tmpfile TMPASM .asm
1804
1805 unset -f mktemp
1806
1807 # make sure we can execute files in $TMPDIR
1808 cat > $TMPSH 2>> $logfile <<EOF
1809 #! /bin/sh
1810 EOF
1811 chmod +x $TMPSH >> $logfile 2>&1
1812 if ! $TMPSH >> $logfile 2>&1; then
1813     cat <<EOF
1814 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1815 variable to another directory and make sure that it is not mounted noexec.
1816 EOF
1817     die "Sanity test failed."
1818 fi
1819
1820 filter_cflags=echo
1821 filter_cppflags=echo
1822 filter_asflags=echo
1823
1824 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1825     cc_type=llvm_gcc
1826     cc_version=__VERSION__
1827     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1828     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1829     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1830     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1831     speed_cflags='-O3'
1832     size_cflags='-Os'
1833 elif $cc -v 2>&1 | grep -qi ^gcc; then
1834     cc_type=gcc
1835     cc_version=__VERSION__
1836     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1837     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1838     if ! $cc -dumpversion | grep -q '^2\.'; then
1839         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1840         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1841     fi
1842     speed_cflags='-O3'
1843     size_cflags='-Os'
1844 elif $cc --version 2>/dev/null | grep -q Intel; then
1845     cc_type=icc
1846     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1847     cc_ident=$($cc --version | head -n1)
1848     icc_version=$($cc -dumpversion)
1849     CC_DEPFLAGS='-MMD'
1850     AS_DEPFLAGS='-MMD'
1851     speed_cflags='-O3'
1852     size_cflags='-Os'
1853     noopt_cflags='-O1'
1854 elif $cc -v 2>&1 | grep -q xlc; then
1855     cc_type=xlc
1856     cc_version="AV_STRINGIFY(__IBMC__)"
1857     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1858     speed_cflags='-O5'
1859     size_cflags='-O5 -qcompact'
1860 elif $cc -V 2>/dev/null | grep -q Compaq; then
1861     cc_type=ccc
1862     cc_version="AV_STRINGIFY(__DECC_VER)"
1863     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1864     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1865     debuglevel=3
1866     add_ldflags -Wl,-z,now # calls to libots crash without this
1867     speed_cflags='-fast'
1868     size_cflags='-O1'
1869 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1870     test -d "$sysroot" || die "No valid sysroot specified."
1871     cc_type=armcc
1872     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1873     cc_ident=$($cc --vsn | head -n1)
1874     armcc_conf="$PWD/armcc.conf"
1875     $cc --arm_linux_configure                 \
1876         --arm_linux_config_file="$armcc_conf" \
1877         --configure_sysroot="$sysroot"        \
1878         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1879         die "Error creating armcc configuration file."
1880     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1881     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1882     as_default="${cross_prefix}gcc"
1883     CC_DEPFLAGS='-MMD'
1884     AS_DEPFLAGS='-MMD'
1885     speed_cflags='-O3'
1886     size_cflags='-Os'
1887 elif $cc -version 2>/dev/null | grep -q TMS470; then
1888     cc_type=tms470
1889     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1890     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1891     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1892     CC_O='-fr=$(@D)'
1893     as_default="${cross_prefix}gcc"
1894     ld_default="${cross_prefix}gcc"
1895     TMPO=$(basename $TMPC .c).o
1896     append TMPFILES $TMPO
1897     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1898     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1899     AS_DEPFLAGS='-MMD'
1900     speed_cflags='-O3 -mf=5'
1901     size_cflags='-O3 -mf=2'
1902     filter_cflags=tms470_flags
1903     tms470_flags(){
1904         for flag; do
1905             case $flag in
1906                 -march=*|-mcpu=*)
1907                     case "${flag#*=}" in
1908                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1909                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1910                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1911                         armv6*|arm11*)          echo -mv=6   ;;
1912                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1913                                                 echo -mv=5e  ;;
1914                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1915                     esac
1916                     ;;
1917                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1918                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1919                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1920                 -msoft-float)   echo --float_support=vfplib       ;;
1921                 -O[0-3]|-mf=*)  echo $flag                        ;;
1922                 -g)             echo -g -mn                       ;;
1923                 -pds=*)         echo $flag                        ;;
1924             esac
1925         done
1926     }
1927 elif $cc -v 2>&1 | grep -q clang; then
1928     cc_type=clang
1929     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1930         cc_version=__clang_version__ || cc_version=__VERSION__
1931     cc_ident=$($cc --version | head -n1)
1932     CC_DEPFLAGS='-MMD'
1933     AS_DEPFLAGS='-MMD'
1934     speed_cflags='-O3'
1935     size_cflags='-Os'
1936 elif $cc -V 2>&1 | grep -q Sun; then
1937     cc_type=suncc
1938     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1939     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1940     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1941     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1942     speed_cflags='-O5'
1943     size_cflags='-O5 -xspace'
1944     filter_cflags=suncc_flags
1945     suncc_flags(){
1946         for flag; do
1947             case $flag in
1948                 -march=*|-mcpu=*)
1949                     case "${flag#*=}" in
1950                         native)                   echo -xtarget=native       ;;
1951                         v9|niagara)               echo -xarch=sparc          ;;
1952                         ultrasparc)               echo -xarch=sparcvis       ;;
1953                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1954                         i586|pentium)             echo -xchip=pentium        ;;
1955                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1956                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1957                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1958                         pentium4*)          echo -xtarget=pentium4           ;;
1959                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1960                         *-sse3)             echo -xarch=sse3                 ;;
1961                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1962                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1963                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1964                         k8|opteron|athlon64|athlon-fx)
1965                                                   echo -xarch=sse2a          ;;
1966                         athlon*)                  echo -xarch=pentium_proa   ;;
1967                     esac
1968                     ;;
1969                 -std=c99)             echo -xc99              ;;
1970                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1971                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1972                 -W*,*)                echo $flag              ;;
1973                 -f*-*|-W*)                                    ;;
1974                 *)                    echo $flag              ;;
1975             esac
1976         done
1977     }
1978 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1979     cc_type=pathscale
1980     cc_version=__PATHSCALE__
1981     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1982     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1983     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1984     speed_cflags='-O2'
1985     size_cflags='-Os'
1986 elif $cc -v 2>&1 | grep -q Open64; then
1987     cc_type=open64
1988     cc_version=__OPEN64__
1989     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1990     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1991     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1992     speed_cflags='-O2'
1993     size_cflags='-Os'
1994 fi
1995
1996 test -n "$cc_type" && enable $cc_type ||
1997     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1998
1999 : ${as_default:=$cc}
2000 : ${dep_cc_default:=$cc}
2001 : ${ld_default:=$cc}
2002 set_default ar as dep_cc ld
2003
2004 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2005 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2006
2007 add_cflags $extra_cflags
2008 add_asflags $extra_cflags
2009
2010 if test -n "$sysroot"; then
2011     case "$cc_type" in
2012         gcc|llvm_gcc)
2013             add_cppflags --sysroot="$sysroot"
2014             add_ldflags --sysroot="$sysroot"
2015         ;;
2016         tms470)
2017             add_cppflags -I"$sysinclude"
2018             add_ldflags  --sysroot="$sysroot"
2019         ;;
2020         clang)
2021             add_cppflags -isysroot "$sysroot"
2022             add_ldflags -isysroot "$sysroot"
2023         ;;
2024     esac
2025 fi
2026
2027 if test "$cpu" = host; then
2028     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2029
2030     case "$cc_type" in
2031         gcc|llvm_gcc)
2032             check_native(){
2033                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2034                 sed -n "/$1=/{
2035                             s/.*$1=\\([^ ]*\\).*/\\1/
2036                             p
2037                             q
2038                         }" $TMPE
2039             }
2040             cpu=$(check_native -march || check_native -mcpu)
2041         ;;
2042     esac
2043
2044     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2045 fi
2046
2047 # Deal with common $arch aliases
2048 case "$arch" in
2049     arm*)
2050         arch="arm"
2051     ;;
2052     mips|mipsel|IP*)
2053         arch="mips"
2054     ;;
2055     mips64*)
2056         arch="mips"
2057         subarch="mips64"
2058     ;;
2059     parisc|hppa)
2060         arch="parisc"
2061     ;;
2062     parisc64|hppa64)
2063         arch="parisc"
2064         subarch="parisc64"
2065     ;;
2066     "Power Macintosh"|ppc|powerpc)
2067         arch="ppc"
2068     ;;
2069     ppc64|powerpc64)
2070         arch="ppc"
2071         subarch="ppc64"
2072     ;;
2073     s390|s390x)
2074         arch="s390"
2075     ;;
2076     sh4|sh)
2077         arch="sh4"
2078     ;;
2079     sun4u|sparc64)
2080         arch="sparc"
2081         subarch="sparc64"
2082     ;;
2083     i[3-6]86|i86pc|BePC|x86_64|amd64)
2084         arch="x86"
2085     ;;
2086 esac
2087
2088 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2089 enable $arch
2090
2091 # Add processor-specific flags
2092 if test "$cpu" = generic; then
2093     : do nothing
2094 elif enabled ppc; then
2095
2096     case $(tolower $cpu) in
2097         601|ppc601|powerpc601)
2098             cpuflags="-mcpu=601"
2099             disable altivec
2100         ;;
2101         603*|ppc603*|powerpc603*)
2102             cpuflags="-mcpu=603"
2103             disable altivec
2104         ;;
2105         604*|ppc604*|powerpc604*)
2106             cpuflags="-mcpu=604"
2107             disable altivec
2108         ;;
2109         g3|75*|ppc75*|powerpc75*)
2110             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2111             disable altivec
2112         ;;
2113         g4|745*|ppc745*|powerpc745*)
2114             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2115         ;;
2116         74*|ppc74*|powerpc74*)
2117             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2118         ;;
2119         g5|970|ppc970|powerpc970|power4*)
2120             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2121         ;;
2122         cell)
2123             cpuflags="-mcpu=cell"
2124             enable ldbrx
2125         ;;
2126         e500v2)
2127             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2128             disable altivec
2129         ;;
2130         e500)
2131             cpuflags="-mcpu=8540 -mhard-float"
2132             disable altivec
2133         ;;
2134     esac
2135
2136 elif enabled x86; then
2137
2138     case $cpu in
2139         i[345]86|pentium)
2140             cpuflags="-march=$cpu"
2141             disable mmx
2142         ;;
2143         # targets that do NOT support conditional mov (cmov)
2144         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2145             cpuflags="-march=$cpu"
2146             disable cmov
2147         ;;
2148         # targets that do support conditional mov (cmov)
2149         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2150             cpuflags="-march=$cpu"
2151             enable cmov
2152             enable fast_cmov
2153         ;;
2154         # targets that do support conditional mov but on which it's slow
2155         pentium4|pentium4m|prescott|nocona)
2156             cpuflags="-march=$cpu"
2157             enable cmov
2158             disable fast_cmov
2159         ;;
2160     esac
2161
2162 elif enabled sparc; then
2163
2164     case $cpu in
2165         niagara)
2166             cpuflags="-mcpu=$cpu"
2167             disable vis
2168         ;;
2169         sparc64)
2170             cpuflags="-mcpu=v9"
2171         ;;
2172     esac
2173
2174 elif enabled arm; then
2175
2176     case $cpu in
2177         armv*)
2178             cpuflags="-march=$cpu"
2179             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2180         ;;
2181         *)
2182             cpuflags="-mcpu=$cpu"
2183             case $cpu in
2184                 cortex-a*)                               subarch=armv7a  ;;
2185                 cortex-r*)                               subarch=armv7r  ;;
2186                 cortex-m*)                               subarch=armv7m  ;;
2187                 arm11*)                                  subarch=armv6   ;;
2188                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2189                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2190             esac
2191         ;;
2192     esac
2193
2194 elif enabled alpha; then
2195
2196     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2197
2198 elif enabled bfin; then
2199
2200     cpuflags="-mcpu=$cpu"
2201
2202 elif enabled mips; then
2203
2204     cpuflags="-march=$cpu"
2205
2206 elif enabled avr32; then
2207
2208     case $cpu in
2209         ap7[02]0[0-2])
2210             subarch="avr32_ap"
2211             cpuflags="-mpart=$cpu"
2212         ;;
2213         ap)
2214             subarch="avr32_ap"
2215             cpuflags="-march=$cpu"
2216         ;;
2217         uc3[ab]*)
2218             subarch="avr32_uc"
2219             cpuflags="-mcpu=$cpu"
2220         ;;
2221         uc)
2222             subarch="avr32_uc"
2223             cpuflags="-march=$cpu"
2224         ;;
2225     esac
2226
2227 fi
2228
2229 add_cflags $cpuflags
2230 add_asflags $cpuflags
2231
2232 # compiler sanity check
2233 check_exec <<EOF
2234 int main(void){ return 0; }
2235 EOF
2236 if test "$?" != 0; then
2237     echo "$cc is unable to create an executable file."
2238     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2239         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2240         echo "Only do this if you know what cross compiling means."
2241     fi
2242     die "C compiler test failed."
2243 fi
2244
2245 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2246 check_cflags -std=c99
2247 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2248 #include <stdlib.h>
2249 EOF
2250 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2251 #include <stdlib.h>
2252 EOF
2253
2254 check_host_cflags -std=c99
2255
2256 case "$arch" in
2257     alpha|ia64|mips|parisc|sparc)
2258         spic=$shared
2259     ;;
2260     x86)
2261         subarch="x86_32"
2262         check_cc <<EOF && subarch="x86_64"
2263         int test[(int)sizeof(char*) - 7];
2264 EOF
2265         if test "$subarch" = "x86_64"; then
2266             spic=$shared
2267         fi
2268     ;;
2269 esac
2270
2271 enable $subarch
2272 enabled spic && enable pic
2273
2274 # OS specific
2275 case $target_os in
2276     haiku)
2277         prefix_default="/boot/common"
2278         network_extralibs="-lnetwork"
2279         ;;
2280     sunos)
2281         FFSERVERLDFLAGS=""
2282         SHFLAGS='-shared -Wl,-h,$$(@F)'
2283         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2284         network_extralibs="-lsocket -lnsl"
2285         add_cppflags -D__EXTENSIONS__
2286         nm_opts='-P -g'
2287         ;;
2288     netbsd)
2289         oss_indev_extralibs="-lossaudio"
2290         oss_outdev_extralibs="-lossaudio"
2291         add_cppflags -D_XOPEN_SOURCE=600
2292         ;;
2293     openbsd)
2294         enable malloc_aligned
2295         # On OpenBSD 4.5. the compiler does not use PIC unless
2296         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2297         # however the generated executable will not do anything
2298         # (simply quits with exit-code 1, no crash, no output).
2299         # Thus explicitly enable PIC here.
2300         enable pic
2301         SHFLAGS='-shared'
2302         oss_indev_extralibs="-lossaudio"
2303         oss_outdev_extralibs="-lossaudio"
2304         ;;
2305     freebsd|dragonfly)
2306         enable malloc_aligned
2307         ;;
2308     bsd/os)
2309         add_extralibs -lpoll -lgnugetopt
2310         strip="strip -d"
2311         ;;
2312     darwin)
2313         enable malloc_aligned
2314         gas="gas-preprocessor.pl $cc"
2315         enabled ppc && add_asflags -force_cpusubtype_ALL
2316         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2317         strip="${strip} -x"
2318         add_ldflags -Wl,-dynamic,-search_paths_first
2319         SLIBSUF=".dylib"
2320         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2321         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2322         FFSERVERLDFLAGS=-Wl,-bind_at_load
2323         objformat="macho"
2324         enabled x86_64 && objformat="macho64"
2325         enabled_any pic shared ||
2326             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2327         ;;
2328     mingw32*)
2329         if test $target_os = "mingw32ce"; then
2330             disable network
2331         else
2332             target_os=mingw32
2333         fi
2334         LIBTARGET=i386
2335         if enabled x86_64; then
2336             enable malloc_aligned
2337             LIBTARGET=x64
2338         elif enabled arm; then
2339             LIBTARGET=arm
2340         fi
2341         shlibdir_default="$bindir_default"
2342         disable ffserver
2343         SLIBPREF=""
2344         SLIBSUF=".dll"
2345         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2346         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2347         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2348         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2349             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2350             install -d "$(LIBDIR)"; \
2351             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2352         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2353         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'
2354         objformat="win32"
2355         enable dos_paths
2356         check_cflags -fno-common
2357         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2358                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2359                 die "ERROR: MinGW runtime version must be >= 3.15."
2360         ;;
2361     cygwin*)
2362         target_os=cygwin
2363         shlibdir_default="$bindir_default"
2364         SLIBPREF="cyg"
2365         SLIBSUF=".dll"
2366         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2367         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2368         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2369         objformat="win32"
2370         enable dos_paths
2371         check_cflags -fno-common
2372         ;;
2373     *-dos|freedos|opendos)
2374         disable ffplay ffserver
2375         disable $INDEV_LIST $OUTDEV_LIST
2376         network_extralibs="-lsocket"
2377         objformat="coff"
2378         enable dos_paths
2379         ;;
2380     linux)
2381         enable dv1394
2382         ;;
2383     irix*)
2384         target_os=irix
2385         ranlib="echo ignoring ranlib"
2386         ;;
2387     os/2*)
2388         strip="lxlite"
2389         ln_s="cp -f"
2390         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2391         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2392         FFSERVERLDFLAGS=""
2393         LIBSUF="_s.a"
2394         SLIBPREF=""
2395         SLIBSUF=".dll"
2396         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2397         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2398         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2399           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2400           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2401           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2402           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2403           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2404         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2405           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2406         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2407         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2408         enable dos_paths
2409         ;;
2410     gnu/kfreebsd)
2411         ;;
2412     gnu)
2413         ;;
2414     none)
2415         ;;
2416     *)
2417         die "Unknown OS '$target_os'."
2418         ;;
2419 esac
2420
2421 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2422
2423 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2424
2425 set_default $PATHS_LIST
2426
2427 # we need to build at least one lib type
2428 if ! enabled_any static shared; then
2429     cat <<EOF
2430 At least one library type must be built.
2431 Specify --enable-static to build the static libraries or --enable-shared to
2432 build the shared libraries as well. To only build the shared libraries specify
2433 --disable-static in addition to --enable-shared.
2434 EOF
2435     exit 1;
2436 fi
2437
2438 disabled static && LIBNAME=""
2439
2440 die_license_disabled() {
2441     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2442 }
2443
2444 die_license_disabled gpl libx264
2445 die_license_disabled gpl libxavs
2446 die_license_disabled gpl libxvid
2447 die_license_disabled gpl postproc
2448 die_license_disabled gpl x11grab
2449
2450 die_license_disabled nonfree libfaac
2451
2452 die_license_disabled version3 libopencore_amrnb
2453 die_license_disabled version3 libopencore_amrwb
2454
2455 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2456
2457 check_deps $ARCH_EXT_LIST
2458
2459 disabled optimizations || check_cflags -fomit-frame-pointer
2460
2461 enable_pic() {
2462     enable pic
2463     add_cppflags -DPIC
2464     add_cflags   -fPIC
2465     add_asflags  -fPIC
2466 }
2467
2468 enabled pic && enable_pic
2469
2470 check_cc <<EOF || die "Symbol mangling check failed."
2471 int ff_extern;
2472 EOF
2473 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2474 extern_prefix=${sym%%ff_extern*}
2475
2476 check_cc <<EOF && enable inline_asm
2477 void foo(void) { __asm__ volatile ("" ::); }
2478 EOF
2479
2480 _restrict=
2481 for restrict_keyword in restrict __restrict__ __restrict; do
2482     check_cc <<EOF && _restrict=$restrict_keyword && break
2483 void foo(char * $restrict_keyword p);
2484 EOF
2485 done
2486
2487 check_cc <<EOF && enable attribute_packed
2488 struct { int x; } __attribute__((packed)) x;
2489 EOF
2490
2491 check_cc <<EOF && enable attribute_may_alias
2492 union { int x; } __attribute__((may_alias)) x;
2493 EOF
2494
2495 check_cc <<EOF || die "endian test failed"
2496 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2497 EOF
2498 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2499
2500 if enabled alpha; then
2501
2502     check_cflags -mieee
2503
2504 elif enabled arm; then
2505
2506     check_cflags -marm
2507     nogas=die
2508
2509     check_ld <<EOF && enable vfp_args
2510 __asm__ (".eabi_attribute 28, 1");
2511 int main(void) { return 0; }
2512 EOF
2513
2514     # We have to check if pld is a nop and disable it.
2515     check_asm pld '"pld [r0]"'
2516
2517     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2518     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2519     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2520     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2521     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2522     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2523
2524     enabled_all armv6t2 shared !pic && enable_pic
2525
2526 elif enabled mips; then
2527
2528     check_asm loongson '"dmult.g $1, $2, $3"'
2529     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2530
2531 elif enabled ppc; then
2532
2533     enable local_aligned_8 local_aligned_16
2534
2535     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2536     check_asm ibm_asm   '"add 0, 0, 0"'
2537     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2538     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2539
2540     # AltiVec flags: The FSF version of GCC differs from the Apple version
2541     if enabled altivec; then
2542         nogas=warn
2543         check_cflags -maltivec -mabi=altivec &&
2544         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2545         check_cflags -faltivec
2546
2547         # check if our compiler supports Motorola AltiVec C API
2548         check_cc <<EOF || disable altivec
2549 $inc_altivec_h
2550 int main(void) {
2551     vector signed int v1, v2, v3;
2552     v1 = vec_add(v2,v3);
2553     return 0;
2554 }
2555 EOF
2556
2557         # check if our compiler supports braces for vector declarations
2558         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2559 $inc_altivec_h
2560 int main (void) { (vector int) {1}; return 0; }
2561 EOF
2562     fi
2563
2564 elif enabled sparc; then
2565
2566     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2567         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2568
2569 elif enabled x86; then
2570
2571     enable local_aligned_8 local_aligned_16
2572
2573     # check whether EBP is available on x86
2574     # As 'i' is stored on the stack, this program will crash
2575     # if the base pointer is used to access it because the
2576     # base pointer is cleared in the inline assembly code.
2577     check_exec_crash <<EOF && enable ebp_available
2578     volatile int i=0;
2579     __asm__ volatile (
2580         "xorl %%ebp, %%ebp"
2581     ::: "%ebp");
2582     return i;
2583 EOF
2584
2585     # check whether EBX is available on x86
2586     check_asm ebx_available '""::"b"(0)' &&
2587         check_asm ebx_available '"":::"%ebx"'
2588
2589     # check whether xmm clobbers are supported
2590     check_asm xmm_clobbers '"":::"%xmm0"'
2591
2592     # check whether more than 10 operands are supported
2593     check_cc <<EOF && enable ten_operands
2594 int main(void) {
2595     int x=0;
2596     __asm__ volatile(
2597         ""
2598         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2599     );
2600     return 0;
2601 }
2602 EOF
2603
2604     # check whether binutils is new enough to compile SSSE3/MMX2
2605     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2606     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2607
2608     check_asm bswap '"bswap %%eax" ::: "%eax"'
2609
2610     if ! disabled_any asm mmx yasm; then
2611         if check_cmd $yasmexe --version; then
2612             enabled x86_64 && yasm_extra="-m amd64"
2613             yasm_debug="-g dwarf2"
2614         elif check_cmd nasm -v; then
2615             yasmexe=nasm
2616             yasm_debug="-g -F dwarf"
2617             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2618         fi
2619
2620         YASMFLAGS="-f $objformat $yasm_extra"
2621         enabled pic               && append YASMFLAGS "-DPIC"
2622         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2623         case "$objformat" in
2624             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2625         esac
2626
2627         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2628             die "yasm not found, use --disable-yasm for a crippled build"
2629     fi
2630
2631     case "$cpu" in
2632         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2633             disable fast_clz
2634         ;;
2635     esac
2636
2637 fi
2638
2639 if enabled asm; then
2640     as=${gas:=$as}
2641     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2642         $nogas "GNU assembler not found, install gas-preprocessor"
2643 fi
2644
2645 if check_func dlopen; then
2646     ldl=
2647 elif check_func dlopen -ldl; then
2648     ldl=-ldl
2649 fi
2650
2651 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2652 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2653
2654 check_func  fcntl
2655 check_func  fork
2656 check_func  getaddrinfo $network_extralibs
2657 check_func  gethrtime
2658 check_func  getrusage
2659 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2660 check_func  inet_aton $network_extralibs
2661 check_func  isatty
2662 check_func  ${malloc_prefix}memalign            && enable memalign
2663 check_func  mkstemp
2664 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2665 check_func  setrlimit
2666 check_func  strerror_r
2667 check_func  strtok_r
2668 check_func_headers io.h setmode
2669 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2670 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2671 check_func_headers windows.h GetProcessTimes
2672 check_func_headers windows.h VirtualAlloc
2673
2674 check_header conio.h
2675 check_header dlfcn.h
2676 check_header dxva2api.h
2677 check_header malloc.h
2678 check_header poll.h
2679 check_header sys/mman.h
2680 check_header sys/resource.h
2681 check_header sys/select.h
2682 check_header termios.h
2683 check_header vdpau/vdpau.h
2684 check_header vdpau/vdpau_x11.h
2685 check_header X11/extensions/XvMClib.h
2686
2687 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2688
2689 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2690      enabled_any $need_memalign ; then
2691     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2692 fi
2693
2694 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2695 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2696
2697 # check for some common methods of building with pthread support
2698 # do this before the optional library checks as some of them require pthreads
2699 if ! disabled pthreads && ! enabled w32threads; then
2700     enable pthreads
2701     if check_func pthread_create; then
2702         :
2703     elif check_func pthread_create -pthread; then
2704         add_cflags -pthread
2705         add_extralibs -pthread
2706     elif check_func pthread_create -pthreads; then
2707         add_cflags -pthreads
2708         add_extralibs -pthreads
2709     elif check_func pthread_create -lpthreadGC2; then
2710         add_extralibs -lpthreadGC2
2711     elif ! check_lib pthread.h pthread_create -lpthread; then
2712         disable pthreads
2713     fi
2714 fi
2715
2716 for thread in $THREADS_LIST; do
2717     if enabled $thread; then
2718         test -n "$thread_type" &&
2719             die "ERROR: Only one thread type must be selected." ||
2720             thread_type="$thread"
2721     fi
2722 done
2723
2724 check_lib math.h sin -lm
2725 disabled vaapi || check_lib va/va.h vaInitialize -lva
2726
2727 check_mathfunc exp2
2728 check_mathfunc exp2f
2729 check_mathfunc llrint
2730 check_mathfunc llrintf
2731 check_mathfunc log2
2732 check_mathfunc log2f
2733 check_mathfunc lrint
2734 check_mathfunc lrintf
2735 check_mathfunc round
2736 check_mathfunc roundf
2737 check_mathfunc truncf
2738
2739 # these are off by default, so fail if requested and not available
2740 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2741 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2742 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2743                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2744                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2745 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2746 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2747 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h hip_decode_init -lmp3lame
2748 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2749 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2750 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2751 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2752                         die "ERROR: libopencv not found"; }
2753 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2754 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2755                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2756 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2757                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2758 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2759 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2760 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2761 enabled libvpx     && {
2762     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2763                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2764     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2765                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2766 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2767                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2768                         die "ERROR: libx264 version must be >= 0.98."; }
2769 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2770 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2771 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2772
2773 # libdc1394 check
2774 if enabled libdc1394; then
2775     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2776         enable libdc1394_2; } ||
2777     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2778         enable libdc1394_1; } ||
2779     die "ERROR: No version of libdc1394 found "
2780 fi
2781
2782 SDL_CONFIG="${cross_prefix}sdl-config"
2783 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2784     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2785     sdl_libs=$("${SDL_CONFIG}" --libs)
2786     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2787     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2788     enable sdl &&
2789     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2790 fi
2791
2792 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2793
2794 if enabled network; then
2795     check_type "sys/types.h sys/socket.h" socklen_t
2796     check_type netdb.h "struct addrinfo"
2797     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2798     check_type netinet/in.h "struct sockaddr_in6"
2799     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2800     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2801     # Prefer arpa/inet.h over winsock2
2802     if check_header arpa/inet.h ; then
2803         check_func closesocket
2804     elif check_header winsock2.h ; then
2805         check_func_headers winsock2.h closesocket -lws2 && \
2806             network_extralibs="-lws2" || \
2807         { check_func_headers winsock2.h closesocket -lws2_32 && \
2808             network_extralibs="-lws2_32"; }
2809         check_type ws2tcpip.h socklen_t
2810         check_type ws2tcpip.h "struct addrinfo"
2811         check_type ws2tcpip.h "struct ipv6_mreq"
2812         check_type ws2tcpip.h "struct sockaddr_in6"
2813         check_type ws2tcpip.h "struct sockaddr_storage"
2814         check_struct winsock2.h "struct sockaddr" sa_len
2815     else
2816         disable network
2817     fi
2818 fi
2819
2820 check_header linux/videodev.h
2821 check_header linux/videodev2.h
2822 check_header sys/videoio.h
2823
2824 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2825 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2826 # w32api 3.12 had it defined wrong
2827 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2828
2829 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2830 { check_header dev/bktr/ioctl_meteor.h &&
2831   check_header dev/bktr/ioctl_bt848.h; } ||
2832 { check_header machine/ioctl_meteor.h &&
2833   check_header machine/ioctl_bt848.h; } ||
2834 { check_header dev/video/meteor/ioctl_meteor.h &&
2835   check_header dev/video/bktr/ioctl_bt848.h; } ||
2836 check_header dev/ic/bt8xx.h
2837
2838 check_header sys/soundcard.h
2839 check_header soundcard.h
2840
2841 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2842
2843 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2844
2845 enabled x11grab                         &&
2846 check_header X11/Xlib.h                 &&
2847 check_header X11/extensions/XShm.h      &&
2848 check_header X11/extensions/Xfixes.h    &&
2849 check_func XOpenDisplay -lX11           &&
2850 check_func XShmCreateImage -lX11 -lXext &&
2851 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2852
2853 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2854 check_cpp_condition \
2855     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2856     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2857       disable vdpau; }
2858 fi
2859
2860 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2861
2862 # add some useful compiler flags if supported
2863 check_cflags -Wdeclaration-after-statement
2864 check_cflags -Wall
2865 check_cflags -Wno-parentheses
2866 check_cflags -Wno-switch
2867 check_cflags -Wdisabled-optimization
2868 check_cflags -Wpointer-arith
2869 check_cflags -Wredundant-decls
2870 check_cflags -Wno-pointer-sign
2871 check_cflags -Wcast-qual
2872 check_cflags -Wwrite-strings
2873 check_cflags -Wtype-limits
2874 check_cflags -Wundef
2875 check_cflags -Wmissing-prototypes
2876 enabled extra_warnings && check_cflags -Winline
2877
2878 # add some linker flags
2879 check_ldflags -Wl,--warn-common
2880 check_ldflags -Wl,--as-needed
2881 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'
2882 check_ldflags -Wl,-Bsymbolic
2883
2884 echo "X{};" > $TMPV
2885 if test_ldflags -Wl,--version-script,$TMPV; then
2886     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2887     check_cc <<EOF && enable symver_asm_label
2888 void ff_foo(void) __asm__ ("av_foo@VERSION");
2889 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2890 EOF
2891     check_cc <<EOF && enable symver_gnu_asm
2892 __asm__(".symver ff_foo,av_foo@VERSION");
2893 void ff_foo(void) {}
2894 EOF
2895 fi
2896
2897 if enabled small; then
2898     add_cflags $size_cflags
2899     optimizations="small"
2900 elif enabled optimizations; then
2901     add_cflags $speed_cflags
2902 else
2903     add_cflags $noopt_cflags
2904 fi
2905 check_cflags -fno-math-errno
2906 check_cflags -fno-signed-zeros
2907
2908 if enabled icc; then
2909     # Just warnings, no remarks
2910     check_cflags -w1
2911     # -wd: Disable following warnings
2912     # 144, 167, 556: -Wno-pointer-sign
2913     # 10006: ignoring unknown option -fno-signed-zeros
2914     # 10156: ignoring option '-W'; no argument required
2915     check_cflags -wd144,167,556,10006,10156
2916     # 11030: Warning unknown option --as-needed
2917     # 10156: ignoring option '-export'; no argument required
2918     check_ldflags -wd10156,11030
2919     # Allow to compile with optimizations
2920     check_ldflags -march=$cpu
2921     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2922     enable ebp_available
2923     if enabled x86_32; then
2924         test ${icc_version%%.*} -ge 11 && \
2925             check_cflags -falign-stack=maintain-16-byte || \
2926             disable aligned_stack
2927     fi
2928 elif enabled ccc; then
2929     # disable some annoying warnings
2930     add_cflags -msg_disable cvtu32to64
2931     add_cflags -msg_disable embedcomment
2932     add_cflags -msg_disable needconstext
2933     add_cflags -msg_disable nomainieee
2934     add_cflags -msg_disable ptrmismatch1
2935     add_cflags -msg_disable unreachcode
2936 elif enabled gcc; then
2937     check_cflags -fno-tree-vectorize
2938     check_cflags -Werror=implicit-function-declaration
2939     check_cflags -Werror=missing-prototypes
2940 elif enabled llvm_gcc; then
2941     check_cflags -mllvm -stack-alignment=16
2942 elif enabled clang; then
2943     check_cflags -mllvm -stack-alignment=16
2944     check_cflags -Qunused-arguments
2945 elif enabled armcc; then
2946     # 2523: use of inline assembler is deprecated
2947     add_cflags -W${armcc_opt},--diag_suppress=2523
2948     add_cflags -W${armcc_opt},--diag_suppress=1207
2949 elif enabled tms470; then
2950     add_cflags -pds=824 -pds=837
2951 fi
2952
2953 enabled_any $THREADS_LIST      && enable threads
2954
2955 check_deps $CONFIG_LIST       \
2956            $CONFIG_EXTRA      \
2957            $HAVE_LIST         \
2958            $DECODER_LIST      \
2959            $ENCODER_LIST      \
2960            $HWACCEL_LIST      \
2961            $PARSER_LIST       \
2962            $BSF_LIST          \
2963            $DEMUXER_LIST      \
2964            $MUXER_LIST        \
2965            $FILTER_LIST       \
2966            $INDEV_LIST        \
2967            $OUTDEV_LIST       \
2968            $PROTOCOL_LIST     \
2969            $ACODEC_TESTS      \
2970            $VCODEC_TESTS      \
2971            $LAVF_TESTS        \
2972            $LAVFI_TESTS       \
2973            $SEEK_TESTS        \
2974
2975 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2976
2977 echo "install prefix            $prefix"
2978 echo "source path               $source_path"
2979 echo "C compiler                $cc"
2980 echo "ARCH                      $arch ($cpu)"
2981 if test "$build_suffix" != ""; then
2982     echo "build suffix              $build_suffix"
2983 fi
2984 if test "$extra_version" != ""; then
2985     echo "version string suffix     $extra_version"
2986 fi
2987 echo "big-endian                ${bigendian-no}"
2988 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2989 if enabled x86; then
2990     echo "yasm                      ${yasm-no}"
2991     echo "MMX enabled               ${mmx-no}"
2992     echo "MMX2 enabled              ${mmx2-no}"
2993     echo "3DNow! enabled            ${amd3dnow-no}"
2994     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2995     echo "SSE enabled               ${sse-no}"
2996     echo "SSSE3 enabled             ${ssse3-no}"
2997     echo "CMOV enabled              ${cmov-no}"
2998     echo "CMOV is fast              ${fast_cmov-no}"
2999     echo "EBX available             ${ebx_available-no}"
3000     echo "EBP available             ${ebp_available-no}"
3001     echo "10 operands supported     ${ten_operands-no}"
3002 fi
3003 if enabled arm; then
3004     echo "ARMv5TE enabled           ${armv5te-no}"
3005     echo "ARMv6 enabled             ${armv6-no}"
3006     echo "ARMv6T2 enabled           ${armv6t2-no}"
3007     echo "ARM VFP enabled           ${armvfp-no}"
3008     echo "IWMMXT enabled            ${iwmmxt-no}"
3009     echo "NEON enabled              ${neon-no}"
3010 fi
3011 if enabled mips; then
3012     echo "MMI enabled               ${mmi-no}"
3013 fi
3014 if enabled ppc; then
3015     echo "AltiVec enabled           ${altivec-no}"
3016     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3017     echo "dcbzl available           ${dcbzl-no}"
3018 fi
3019 if enabled sparc; then
3020     echo "VIS enabled               ${vis-no}"
3021 fi
3022 echo "debug symbols             ${debug-no}"
3023 echo "strip symbols             ${stripping-no}"
3024 echo "optimizations             ${optimizations-no}"
3025 echo "static                    ${static-no}"
3026 echo "shared                    ${shared-no}"
3027 echo "postprocessing support    ${postproc-no}"
3028 echo "new filter support        ${avfilter-no}"
3029 echo "network support           ${network-no}"
3030 echo "threading support         ${thread_type-no}"
3031 echo "SDL support               ${sdl-no}"
3032 echo "Sun medialib support      ${mlib-no}"
3033 echo "AVISynth enabled          ${avisynth-no}"
3034 echo "frei0r enabled            ${frei0r-no}"
3035 echo "libdc1394 support         ${libdc1394-no}"
3036 echo "libdirac enabled          ${libdirac-no}"
3037 echo "libfaac enabled           ${libfaac-no}"
3038 echo "libgsm enabled            ${libgsm-no}"
3039 echo "libmp3lame enabled        ${libmp3lame-no}"
3040 echo "libnut enabled            ${libnut-no}"
3041 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3042 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3043 echo "libopencv support         ${libopencv-no}"
3044 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3045 echo "librtmp enabled           ${librtmp-no}"
3046 echo "libschroedinger enabled   ${libschroedinger-no}"
3047 echo "libspeex enabled          ${libspeex-no}"
3048 echo "libtheora enabled         ${libtheora-no}"
3049 echo "libvorbis enabled         ${libvorbis-no}"
3050 echo "libvpx enabled            ${libvpx-no}"
3051 echo "libx264 enabled           ${libx264-no}"
3052 echo "libxavs enabled           ${libxavs-no}"
3053 echo "libxvid enabled           ${libxvid-no}"
3054 echo "zlib enabled              ${zlib-no}"
3055 echo "bzlib enabled             ${bzlib-no}"
3056 echo
3057
3058 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3059     echo "Enabled ${type}s:"
3060     eval list=\$$(toupper $type)_LIST
3061     print_enabled '_*' $list | sort | pr -3 -t
3062     echo
3063 done
3064
3065 license="LGPL version 2.1 or later"
3066 if enabled nonfree; then
3067     license="nonfree and unredistributable"
3068 elif enabled gplv3; then
3069     license="GPL version 3 or later"
3070 elif enabled lgplv3; then
3071     license="LGPL version 3 or later"
3072 elif enabled gpl; then
3073     license="GPL version 2 or later"
3074 fi
3075
3076 echo "License: $license"
3077
3078 echo "Creating config.mak and config.h..."
3079
3080 # build tree in object directory if source path is different from current one
3081 if enabled source_path_used; then
3082     DIRS="
3083         doc
3084         libavcodec
3085         libavcodec/$arch
3086         libavcore
3087         libavdevice
3088         libavfilter
3089         libavfilter/$arch
3090         libavformat
3091         libavutil
3092         libavutil/$arch
3093         libpostproc
3094         libswscale
3095         libswscale/$arch
3096         tests
3097         tools
3098     "
3099     FILES="
3100         Makefile
3101         common.mak
3102         subdir.mak
3103         doc/texi2pod.pl
3104         libavcodec/Makefile
3105         libavcodec/${arch}/Makefile
3106         libavcore/Makefile
3107         libavdevice/Makefile
3108         libavfilter/Makefile
3109         libavfilter/${arch}/Makefile
3110         libavformat/Makefile
3111         libavutil/Makefile
3112         libpostproc/Makefile
3113         libswscale/Makefile
3114     "
3115     map 'mkdir -p $v' $DIRS;
3116     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3117 fi
3118
3119 enabled stripping || strip="echo skipping strip"
3120
3121 config_files="$TMPH config.mak"
3122
3123 cat > config.mak <<EOF
3124 # Automatically generated by configure - do not modify!
3125 ifndef FFMPEG_CONFIG_MAK
3126 FFMPEG_CONFIG_MAK=1
3127 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3128 prefix=$prefix
3129 LIBDIR=\$(DESTDIR)$libdir
3130 SHLIBDIR=\$(DESTDIR)$shlibdir
3131 INCDIR=\$(DESTDIR)$incdir
3132 BINDIR=\$(DESTDIR)$bindir
3133 DATADIR=\$(DESTDIR)$datadir
3134 MANDIR=\$(DESTDIR)$mandir
3135 SRC_PATH="$source_path"
3136 SRC_PATH_BARE=$source_path
3137 BUILD_ROOT="$PWD"
3138 CC_IDENT=$cc_ident
3139 ARCH=$arch
3140 CC=$cc
3141 AS=$as
3142 LD=$ld
3143 DEPCC=$dep_cc
3144 YASM=$yasmexe
3145 YASMDEP=$yasmexe
3146 AR=$ar
3147 RANLIB=$ranlib
3148 CP=cp -p
3149 LN_S=$ln_s
3150 STRIP=$strip
3151 CPPFLAGS=$CPPFLAGS
3152 CFLAGS=$CFLAGS
3153 ASFLAGS=$ASFLAGS
3154 CC_O=$CC_O
3155 LDFLAGS=$LDFLAGS
3156 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3157 SHFLAGS=$SHFLAGS
3158 YASMFLAGS=$YASMFLAGS
3159 BUILDSUF=$build_suffix
3160 FULLNAME=$FULLNAME
3161 LIBPREF=$LIBPREF
3162 LIBSUF=$LIBSUF
3163 LIBNAME=$LIBNAME
3164 SLIBPREF=$SLIBPREF
3165 SLIBSUF=$SLIBSUF
3166 EXESUF=$EXESUF
3167 EXTRA_VERSION=$extra_version
3168 DEPFLAGS=$DEPFLAGS
3169 CCDEP=$CCDEP
3170 ASDEP=$ASDEP
3171 CC_DEPFLAGS=$CC_DEPFLAGS
3172 AS_DEPFLAGS=$AS_DEPFLAGS
3173 HOSTCC=$host_cc
3174 HOSTCFLAGS=$host_cflags
3175 HOSTEXESUF=$HOSTEXESUF
3176 HOSTLDFLAGS=$host_ldflags
3177 HOSTLIBS=$host_libs
3178 TARGET_EXEC=$target_exec
3179 TARGET_PATH=$target_path
3180 SDL_LIBS=$sdl_libs
3181 SDL_CFLAGS=$sdl_cflags
3182 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3183 EXTRALIBS=$extralibs
3184 INSTALL=install
3185 LIBTARGET=${LIBTARGET}
3186 SLIBNAME=${SLIBNAME}
3187 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3188 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3189 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3190 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3191 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3192 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3193 SAMPLES=$samples
3194 EOF
3195
3196 get_version(){
3197     name=$1
3198     file=$source_path/$2
3199     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3200     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3201     lcname=$(tolower $name)
3202     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3203     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3204 }
3205
3206 get_version LIBSWSCALE  libswscale/swscale.h
3207 get_version LIBPOSTPROC libpostproc/postprocess.h
3208 get_version LIBAVCODEC  libavcodec/avcodec.h
3209 get_version LIBAVCORE   libavcore/avcore.h
3210 get_version LIBAVDEVICE libavdevice/avdevice.h
3211 get_version LIBAVFORMAT libavformat/avformat.h
3212 get_version LIBAVUTIL   libavutil/avutil.h
3213 get_version LIBAVFILTER libavfilter/avfilter.h
3214
3215 cat > $TMPH <<EOF
3216 /* Automatically generated by configure - do not modify! */
3217 #ifndef FFMPEG_CONFIG_H
3218 #define FFMPEG_CONFIG_H
3219 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3220 #define FFMPEG_LICENSE "$(c_escape $license)"
3221 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3222 #define CC_TYPE "$cc_type"
3223 #define CC_VERSION $cc_version
3224 #define restrict $_restrict
3225 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3226 #define EXTERN_PREFIX "${extern_prefix}"
3227 #define EXTERN_ASM ${extern_prefix}
3228 #define SLIBSUF "$SLIBSUF"
3229 EOF
3230
3231 test -n "$malloc_prefix" &&
3232     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3233
3234 if enabled small || disabled optimizations; then
3235     echo "#undef  av_always_inline"  >> $TMPH
3236     echo "#define av_always_inline"  >> $TMPH
3237 fi
3238
3239 if enabled yasm; then
3240     append config_files $TMPASM
3241     printf '' >$TMPASM
3242 fi
3243
3244 print_config ARCH_   "$config_files" $ARCH_LIST
3245 print_config HAVE_   "$config_files" $HAVE_LIST
3246 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3247                                      $CONFIG_EXTRA      \
3248                                      $DECODER_LIST      \
3249                                      $ENCODER_LIST      \
3250                                      $HWACCEL_LIST      \
3251                                      $PARSER_LIST       \
3252                                      $BSF_LIST          \
3253                                      $DEMUXER_LIST      \
3254                                      $MUXER_LIST        \
3255                                      $FILTER_LIST       \
3256                                      $PROTOCOL_LIST     \
3257                                      $INDEV_LIST        \
3258                                      $OUTDEV_LIST       \
3259
3260 cat >>config.mak <<EOF
3261 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3262 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3263 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3264 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3265 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3266 EOF
3267
3268 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3269 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3270
3271 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3272 cp_if_changed $TMPH config.h
3273 touch .config
3274
3275 enabled yasm && cp_if_changed $TMPASM config.asm
3276
3277 cat > $TMPH <<EOF
3278 /* Generated by ffconf */
3279 #ifndef AVUTIL_AVCONFIG_H
3280 #define AVUTIL_AVCONFIG_H
3281 EOF
3282
3283 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3284
3285 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3286
3287 cp_if_changed $TMPH libavutil/avconfig.h
3288
3289 test -n "$WARNINGS" && printf "\n$WARNINGS"
3290
3291 # build pkg-config files
3292
3293 pkgconfig_generate(){
3294 name=$1
3295 shortname=${name#lib}${build_suffix}
3296 comment=$2
3297 version=$3
3298 libs=$4
3299 requires=$5
3300 enabled ${name#lib} || return 0
3301 cat <<EOF > $name/$name.pc
3302 prefix=$prefix
3303 exec_prefix=\${prefix}
3304 libdir=$libdir
3305 includedir=$incdir
3306
3307 Name: $name
3308 Description: $comment
3309 Version: $version
3310 Requires: $(enabled shared || echo $requires)
3311 Requires.private: $(enabled shared && echo $requires)
3312 Conflicts:
3313 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3314 Libs.private: $(enabled shared && echo $libs)
3315 Cflags: -I\${includedir}
3316 EOF
3317 cat <<EOF > $name/$name-uninstalled.pc
3318 prefix=
3319 exec_prefix=
3320 libdir=\${pcfiledir}
3321 includedir=${source_path}
3322
3323 Name: $name
3324 Description: $comment
3325 Version: $version
3326 Requires: $requires
3327 Conflicts:
3328 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3329 Cflags: -I\${includedir}
3330 EOF
3331 }
3332
3333 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3334 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3335 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3336 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3337 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3338 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3339 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3340 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"