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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --enable-postproc        enable GPLed postprocessing support [no]
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 182                            native implementation exists [no]
 183   --enable-libvpx          enable VP8 support via libvpx [no]
 184   --enable-libx264         enable H.264 encoding via x264 [no]
 185   --enable-libxavs         enable AVS encoding via xavs [no]
 186   --enable-libxvid         enable Xvid encoding via xvidcore,
 187                            native MPEG-4/Xvid encoder exists [no]
 188   --enable-mlib            enable Sun medialib [no]
 189   --enable-zlib            enable zlib [autodetect]
 190
 191 Advanced options (experts only):
 192   --source-path=PATH       path to source code [$source_path]
 193   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 194   --enable-cross-compile   assume a cross-compiler is used
 195   --sysroot=PATH           root of cross-build tree
 196   --sysinclude=PATH        location of cross-build system headers
 197   --target-os=OS           compiler targets OS [$target_os]
 198   --target-exec=CMD        command to run executables on target
 199   --target-path=DIR        path to view of build directory on target
 200   --nm=NM                  use nm tool
 201   --ar=AR                  use archive tool AR [$ar_default]
 202   --as=AS                  use assembler AS [$as_default]
 203   --cc=CC                  use C compiler CC [$cc_default]
 204   --ld=LD                  use linker LD
 205   --host-cc=HOSTCC         use host C compiler HOSTCC
 206   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 207   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 208   --host-libs=HLIBS        use libs HLIBS when linking for host
 209   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 210   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 211   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 212   --extra-version=STRING   version string suffix []
 213   --build-suffix=SUFFIX    library name suffix []
 214   --arch=ARCH              select architecture [$arch]
 215   --cpu=CPU                select the minimum required CPU (affects
 216                            instruction selection, may crash on older CPUs)
 217   --disable-asm            disable all assembler optimizations
 218   --disable-altivec        disable AltiVec optimizations
 219   --disable-amd3dnow       disable 3DNow! optimizations
 220   --disable-amd3dnowext    disable 3DNow! extended optimizations
 221   --disable-mmx            disable MMX optimizations
 222   --disable-mmx2           disable MMX2 optimizations
 223   --disable-sse            disable SSE optimizations
 224   --disable-ssse3          disable SSSE3 optimizations
 225   --disable-avx            disable AVX optimizations
 226   --disable-armv5te        disable armv5te optimizations
 227   --disable-armv6          disable armv6 optimizations
 228   --disable-armv6t2        disable armv6t2 optimizations
 229   --disable-armvfp         disable ARM VFP optimizations
 230   --disable-iwmmxt         disable iwmmxt optimizations
 231   --disable-mmi            disable MMI optimizations
 232   --disable-neon           disable neon optimizations
 233   --disable-vis            disable VIS optimizations
 234   --disable-yasm           disable use of yasm assembler
 235   --enable-pic             build position-independent code
 236   --malloc-prefix=PFX      prefix malloc and related names with PFX
 237   --enable-sram            allow use of on-chip SRAM
 238   --disable-symver         disable symbol versioning
 239
 240 Developer options (useful when working on FFmpeg itself):
 241   --disable-debug          disable debugging symbols
 242   --enable-debug=LEVEL     set the debug level [$debuglevel]
 243   --disable-optimizations  disable compiler optimizations
 244   --enable-extra-warnings  enable more compiler warnings
 245   --disable-stripping      disable stripping of executables and shared libraries
 246   --samples=PATH           location of test samples for FATE
 247
 248 NOTE: Object files are built at the place where configure is launched.
 249 EOF
 250   exit 0
 251 }
 252
 253 quotes='""'
 254
 255 log(){
 256     echo "$@" >> $logfile
 257 }
 258
 259 log_file(){
 260     log BEGIN $1
 261     pr -n -t $1 >> $logfile
 262     log END $1
 263 }
 264
 265 echolog(){
 266     log "$@"
 267     echo "$@"
 268 }
 269
 270 warn(){
 271     log "WARNING: $*"
 272     WARNINGS="${WARNINGS}WARNING: $*\n"
 273 }
 274
 275 die(){
 276     echolog "$@"
 277     cat <<EOF
 278
 279 If you think configure made a mistake, make sure you are using the latest
 280 version from Git.  If the latest version fails, report the problem to the
 281 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 282 EOF
 283     if disabled logging; then
 284         cat <<EOF
 285 Rerun configure with logging enabled (do not use --disable-logging), and
 286 include the log this produces with your report.
 287 EOF
 288     else
 289 cat <<EOF
 290 Include the log file "$logfile" produced by configure as this will help
 291 solving the problem.
 292 EOF
 293     fi
 294     exit 1
 295 }
 296
 297 # Avoid locale weirdness, besides we really just want to translate ASCII.
 298 toupper(){
 299     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 300 }
 301
 302 tolower(){
 303     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 304 }
 305
 306 c_escape(){
 307     echo "$*" | sed 's/["\\]/\\\0/g'
 308 }
 309
 310 sh_quote(){
 311     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 312     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 313     echo "$v"
 314 }
 315
 316 cleanws(){
 317     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 318 }
 319
 320 filter(){
 321     pat=$1
 322     shift
 323     for v; do
 324         eval "case $v in $pat) echo $v ;; esac"
 325     done
 326 }
 327
 328 filter_out(){
 329     pat=$1
 330     shift
 331     for v; do
 332         eval "case $v in $pat) ;; *) echo $v ;; esac"
 333     done
 334 }
 335
 336 map(){
 337     m=$1
 338     shift
 339     for v; do eval $m; done
 340 }
 341
 342 set_all(){
 343     value=$1
 344     shift
 345     for var in $*; do
 346         eval $var=$value
 347     done
 348 }
 349
 350 set_weak(){
 351     value=$1
 352     shift
 353     for var; do
 354         eval : \${$var:=$value}
 355     done
 356 }
 357
 358 pushvar(){
 359     for var in $*; do
 360         eval level=\${${var}_level:=0}
 361         eval ${var}_${level}="\$$var"
 362         eval ${var}_level=$(($level+1))
 363     done
 364 }
 365
 366 popvar(){
 367     for var in $*; do
 368         eval level=\${${var}_level:-0}
 369         test $level = 0 && continue
 370         eval level=$(($level-1))
 371         eval $var="\${${var}_${level}}"
 372         eval ${var}_level=$level
 373         eval unset ${var}_${level}
 374     done
 375 }
 376
 377 enable(){
 378     set_all yes $*
 379 }
 380
 381 disable(){
 382     set_all no $*
 383 }
 384
 385 enable_weak(){
 386     set_weak yes $*
 387 }
 388
 389 disable_weak(){
 390     set_weak no $*
 391 }
 392
 393 enable_safe(){
 394     for var; do
 395         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 396     done
 397 }
 398
 399 disable_safe(){
 400     for var; do
 401         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 402     done
 403 }
 404
 405 do_enable_deep(){
 406     for var; do
 407         enabled $var && continue
 408         eval sel="\$${var}_select"
 409         eval sgs="\$${var}_suggest"
 410         pushvar var sgs
 411         enable_deep $sel
 412         popvar sgs
 413         enable_deep_weak $sgs
 414         popvar var
 415     done
 416 }
 417
 418 enable_deep(){
 419     do_enable_deep $*
 420     enable $*
 421 }
 422
 423 enable_deep_weak(){
 424     do_enable_deep $*
 425     enable_weak $*
 426 }
 427
 428 enabled(){
 429     test "${1#!}" = "$1" && op== || op=!=
 430     eval test "x\$${1#!}" $op "xyes"
 431 }
 432
 433 disabled(){
 434     test "${1#!}" = "$1" && op== || op=!=
 435     eval test "x\$${1#!}" $op "xno"
 436 }
 437
 438 enabled_all(){
 439     for opt; do
 440         enabled $opt || return 1
 441     done
 442 }
 443
 444 disabled_all(){
 445     for opt; do
 446         disabled $opt || return 1
 447     done
 448 }
 449
 450 enabled_any(){
 451     for opt; do
 452         enabled $opt && return 0
 453     done
 454 }
 455
 456 disabled_any(){
 457     for opt; do
 458         disabled $opt && return 0
 459     done
 460     return 1
 461 }
 462
 463 set_default(){
 464     for opt; do
 465         eval : \${$opt:=\$${opt}_default}
 466     done
 467 }
 468
 469 is_in(){
 470     value=$1
 471     shift
 472     for var in $*; do
 473         [ $var = $value ] && return 0
 474     done
 475     return 1
 476 }
 477
 478 check_deps(){
 479     for cfg; do
 480         cfg="${cfg#!}"
 481         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 482         disabled ${cfg}_checking && continue
 483         enable ${cfg}_checking
 484
 485         eval dep_all="\$${cfg}_deps"
 486         eval dep_any="\$${cfg}_deps_any"
 487         eval dep_sel="\$${cfg}_select"
 488         eval dep_sgs="\$${cfg}_suggest"
 489         eval dep_ifa="\$${cfg}_if"
 490         eval dep_ifn="\$${cfg}_if_any"
 491
 492         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 493         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 494         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 495
 496         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 497         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 498         enabled_all  $dep_all || disable $cfg
 499         enabled_any  $dep_any || disable $cfg
 500         disabled_any $dep_sel && disable $cfg
 501
 502         if enabled $cfg; then
 503             eval dep_extralibs="\$${cfg}_extralibs"
 504             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 505             enable_deep $dep_sel
 506             enable_deep_weak $dep_sgs
 507         fi
 508
 509         disable ${cfg}_checking
 510     done
 511 }
 512
 513 print_config_h(){
 514     enabled $1 && v=1 || v=0
 515     echo "#define $2 $v"
 516 }
 517
 518 print_config_mak(){
 519     enabled $1 && v= || v=!
 520     echo "$v$2=yes"
 521 }
 522
 523 print_config_asm(){
 524     enabled $1 && echo "%define $2"
 525 }
 526
 527 print_config(){
 528     pfx=$1
 529     files=$2
 530     shift 2
 531     for cfg; do
 532         ucname="$(toupper $cfg)"
 533         for f in $files; do
 534             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 535         done
 536     done
 537 }
 538
 539 print_enabled(){
 540     test "$1" = -n && end=" " && shift || end="\n"
 541     suf=$1
 542     shift
 543     for v; do
 544         enabled $v && printf "%s$end" ${v%$suf};
 545     done
 546 }
 547
 548 append(){
 549     var=$1
 550     shift
 551     eval "$var=\"\$$var $*\""
 552 }
 553
 554 prepend(){
 555     var=$1
 556     shift
 557     eval "$var=\"$* \$$var\""
 558 }
 559
 560 add_cppflags(){
 561     append CPPFLAGS $($filter_cppflags "$@")
 562 }
 563
 564 add_cflags(){
 565     append CFLAGS $($filter_cflags "$@")
 566 }
 567
 568 add_asflags(){
 569     append ASFLAGS $($filter_asflags "$@")
 570 }
 571
 572 add_ldflags(){
 573     append LDFLAGS "$@"
 574 }
 575
 576 add_extralibs(){
 577     prepend extralibs "$@"
 578 }
 579
 580 check_cmd(){
 581     log "$@"
 582     "$@" >> $logfile 2>&1
 583 }
 584
 585 check_cc(){
 586     log check_cc "$@"
 587     cat > $TMPC
 588     log_file $TMPC
 589     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 590 }
 591
 592 check_cpp(){
 593     log check_cpp "$@"
 594     cat > $TMPC
 595     log_file $TMPC
 596     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 597 }
 598
 599 check_as(){
 600     log check_as "$@"
 601     cat > $TMPC
 602     log_file $TMPC
 603     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 604 }
 605
 606 check_asm(){
 607     log check_asm "$@"
 608     name="$1"
 609     code="$2"
 610     shift 2
 611     disable $name
 612     check_as "$@" <<EOF && enable $name
 613 void foo(void){ __asm__ volatile($code); }
 614 EOF
 615 }
 616
 617 check_yasm(){
 618     log check_yasm "$@"
 619     echo "$1" > $TMPS
 620     log_file $TMPS
 621     shift 1
 622     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 623 }
 624
 625 check_ld(){
 626     log check_ld "$@"
 627     flags=''
 628     libs=''
 629     for f; do
 630         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 631     done
 632     check_cc $($filter_cflags $flags) || return
 633     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 634 }
 635
 636 check_cppflags(){
 637     log check_cppflags "$@"
 638     set -- $($filter_cppflags "$@")
 639     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 640 int x;
 641 EOF
 642 }
 643
 644 check_cflags(){
 645     log check_cflags "$@"
 646     set -- $($filter_cflags "$@")
 647     check_cc "$@" <<EOF && append CFLAGS "$@"
 648 int x;
 649 EOF
 650 }
 651
 652 test_ldflags(){
 653     log test_ldflags "$@"
 654     check_ld "$@" <<EOF
 655 int main(void){ return 0; }
 656 EOF
 657 }
 658
 659 check_ldflags(){
 660     log check_ldflags "$@"
 661     test_ldflags "$@" && add_ldflags "$@"
 662 }
 663
 664 check_header(){
 665     log check_header "$@"
 666     header=$1
 667     shift
 668     disable_safe $header
 669     check_cpp "$@" <<EOF && enable_safe $header
 670 #include <$header>
 671 int x;
 672 EOF
 673 }
 674
 675 check_func(){
 676     log check_func "$@"
 677     func=$1
 678     shift
 679     disable $func
 680     check_ld "$@" <<EOF && enable $func
 681 extern int $func();
 682 int main(void){ $func(); }
 683 EOF
 684 }
 685
 686 check_mathfunc(){
 687     log check_mathfunc "$@"
 688     func=$1
 689     shift
 690     disable $func
 691     check_ld "$@" <<EOF && enable $func
 692 #include <math.h>
 693 float foo(float f) { return $func(f); }
 694 int main(void){ return 0; }
 695 EOF
 696 }
 697
 698 check_func_headers(){
 699     log check_func_headers "$@"
 700     headers=$1
 701     func=$2
 702     shift 2
 703     disable $func
 704     incs=""
 705     for hdr in $headers; do
 706         incs="$incs
 707 #include <$hdr>"
 708     done
 709     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 710 $incs
 711 int main(int argc, char **argv){
 712     return (long) $func;
 713 }
 714 EOF
 715 }
 716
 717 check_cpp_condition(){
 718     log check_cpp_condition "$@"
 719     header=$1
 720     condition=$2
 721     shift 2
 722     check_cpp $($filter_cppflags "$@") <<EOF
 723 #include <$header>
 724 #if !($condition)
 725 #error "unsatisfied condition: $condition"
 726 #endif
 727 EOF
 728 }
 729
 730 check_lib(){
 731     log check_lib "$@"
 732     header="$1"
 733     func="$2"
 734     shift 2
 735     check_header $header && check_func $func "$@" && add_extralibs "$@"
 736 }
 737
 738 check_lib2(){
 739     log check_lib2 "$@"
 740     headers="$1"
 741     func="$2"
 742     shift 2
 743     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 744 }
 745
 746 check_exec(){
 747     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 748 }
 749
 750 check_exec_crash(){
 751     code=$(cat)
 752
 753     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 754     # are safe but may not be available everywhere.  Thus we use
 755     # raise(SIGTERM) instead.  The check is run in a subshell so we
 756     # can redirect the "Terminated" message from the shell.  SIGBUS
 757     # is not defined by standard C so it is used conditionally.
 758
 759     (check_exec "$@") >> $logfile 2>&1 <<EOF
 760 #include <signal.h>
 761 static void sighandler(int sig){
 762     raise(SIGTERM);
 763 }
 764 int main(void){
 765     signal(SIGILL, sighandler);
 766     signal(SIGFPE, sighandler);
 767     signal(SIGSEGV, sighandler);
 768 #ifdef SIGBUS
 769     signal(SIGBUS, sighandler);
 770 #endif
 771     { $code }
 772 }
 773 EOF
 774 }
 775
 776 check_type(){
 777     log check_type "$@"
 778     headers=$1
 779     type=$2
 780     shift 2
 781     disable_safe "$type"
 782     incs=""
 783     for hdr in $headers; do
 784         incs="$incs
 785 #include <$hdr>"
 786     done
 787     check_cc "$@" <<EOF && enable_safe "$type"
 788 $incs
 789 $type v;
 790 EOF
 791 }
 792
 793 check_struct(){
 794     log check_type "$@"
 795     headers=$1
 796     struct=$2
 797     member=$3
 798     shift 3
 799     disable_safe "${struct}_${member}"
 800     incs=""
 801     for hdr in $headers; do
 802         incs="$incs
 803 #include <$hdr>"
 804     done
 805     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 806 $incs
 807 const void *p = &(($struct *)0)->$member;
 808 EOF
 809 }
 810
 811 require(){
 812     name="$1"
 813     header="$2"
 814     func="$3"
 815     shift 3
 816     check_lib $header $func "$@" || die "ERROR: $name not found"
 817 }
 818
 819 require2(){
 820     name="$1"
 821     headers="$2"
 822     func="$3"
 823     shift 3
 824     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 825 }
 826
 827 check_host_cc(){
 828     log check_host_cc "$@"
 829     cat > $TMPC
 830     log_file $TMPC
 831     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 832 }
 833
 834 check_host_cflags(){
 835     log check_host_cflags "$@"
 836     check_host_cc "$@" <<EOF && append host_cflags "$@"
 837 int x;
 838 EOF
 839 }
 840
 841 apply(){
 842     file=$1
 843     shift
 844     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 845 }
 846
 847 cp_if_changed(){
 848     cmp -s "$1" "$2" &&
 849         echo "$2 is unchanged" ||
 850         cp -f "$1" "$2"
 851 }
 852
 853 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 854 # system-dependent things.
 855
 856 COMPONENT_LIST="
 857     bsfs
 858     decoders
 859     demuxers
 860     encoders
 861     filters
 862     hwaccels
 863     indevs
 864     muxers
 865     outdevs
 866     parsers
 867     protocols
 868 "
 869
 870 CONFIG_LIST="
 871     $COMPONENT_LIST
 872     aandct
 873     avcodec
 874     avdevice
 875     avfilter
 876     avformat
 877     avisynth
 878     bzlib
 879     dct
 880     doc
 881     dwt
 882     dxva2
 883     fastdiv
 884     ffmpeg
 885     ffplay
 886     ffprobe
 887     ffserver
 888     fft
 889     frei0r
 890     golomb
 891     gpl
 892     gray
 893     h264dsp
 894     h264pred
 895     hardcoded_tables
 896     huffman
 897     libdc1394
 898     libdirac
 899     libfaac
 900     libgsm
 901     libmp3lame
 902     libnut
 903     libopencore_amrnb
 904     libopencore_amrwb
 905     libopencv
 906     libopenjpeg
 907     librtmp
 908     libschroedinger
 909     libspeex
 910     libtheora
 911     libvorbis
 912     libvpx
 913     libx264
 914     libxavs
 915     libxvid
 916     lpc
 917     lsp
 918     mdct
 919     memalign_hack
 920     mlib
 921     mpegaudio_hp
 922     network
 923     nonfree
 924     pic
 925     postproc
 926     rdft
 927     rtpdec
 928     runtime_cpudetect
 929     shared
 930     small
 931     sram
 932     static
 933     swscale
 934     swscale_alpha
 935     vaapi
 936     vdpau
 937     version3
 938     x11grab
 939     zlib
 940 "
 941
 942 THREADS_LIST='
 943     pthreads
 944     w32threads
 945 '
 946
 947 ARCH_LIST='
 948     alpha
 949     arm
 950     avr32
 951     avr32_ap
 952     avr32_uc
 953     bfin
 954     ia64
 955     m68k
 956     mips
 957     mips64
 958     parisc
 959     ppc
 960     ppc64
 961     s390
 962     sh4
 963     sparc
 964     sparc64
 965     tomi
 966     x86
 967     x86_32
 968     x86_64
 969 '
 970
 971 ARCH_EXT_LIST='
 972     altivec
 973     amd3dnow
 974     amd3dnowext
 975     armv5te
 976     armv6
 977     armv6t2
 978     armvfp
 979     avx
 980     iwmmxt
 981     mmi
 982     mmx
 983     mmx2
 984     neon
 985     ppc4xx
 986     sse
 987     ssse3
 988     vis
 989 '
 990
 991 HAVE_LIST_PUB='
 992     bigendian
 993     fast_unaligned
 994 '
 995
 996 HAVE_LIST="
 997     $ARCH_EXT_LIST
 998     $HAVE_LIST_PUB
 999     $THREADS_LIST
1000     aligned_stack
1001     alsa_asoundlib_h
1002     altivec_h
1003     arpa_inet_h
1004     attribute_may_alias
1005     attribute_packed
1006     bswap
1007     closesocket
1008     cmov
1009     conio_h
1010     dcbzl
1011     dev_bktr_ioctl_bt848_h
1012     dev_bktr_ioctl_meteor_h
1013     dev_ic_bt8xx_h
1014     dev_video_meteor_ioctl_meteor_h
1015     dev_video_bktr_ioctl_bt848_h
1016     dlfcn_h
1017     dlopen
1018     dos_paths
1019     ebp_available
1020     ebx_available
1021     exp2
1022     exp2f
1023     fast_64bit
1024     fast_clz
1025     fast_cmov
1026     fcntl
1027     fork
1028     getaddrinfo
1029     gethrtime
1030     GetProcessMemoryInfo
1031     GetProcessTimes
1032     getrusage
1033     gnu_as
1034     struct_rusage_ru_maxrss
1035     ibm_asm
1036     inet_aton
1037     inline_asm
1038     isatty
1039     ldbrx
1040     libdc1394_1
1041     libdc1394_2
1042     llrint
1043     llrintf
1044     local_aligned_16
1045     local_aligned_8
1046     log2
1047     log2f
1048     loongson
1049     lrint
1050     lrintf
1051     lzo1x_999_compress
1052     machine_ioctl_bt848_h
1053     machine_ioctl_meteor_h
1054     malloc_h
1055     MapViewOfFile
1056     memalign
1057     mkstemp
1058     mmap
1059     pld
1060     posix_memalign
1061     round
1062     roundf
1063     sdl
1064     sdl_video_size
1065     setmode
1066     socklen_t
1067     soundcard_h
1068     poll_h
1069     setrlimit
1070     strerror_r
1071     strtok_r
1072     struct_addrinfo
1073     struct_ipv6_mreq
1074     struct_sockaddr_in6
1075     struct_sockaddr_sa_len
1076     struct_sockaddr_storage
1077     symver
1078     symver_gnu_asm
1079     symver_asm_label
1080     sys_mman_h
1081     sys_resource_h
1082     sys_select_h
1083     sys_soundcard_h
1084     sys_videoio_h
1085     ten_operands
1086     termios_h
1087     threads
1088     truncf
1089     vfp_args
1090     VirtualAlloc
1091     winsock2_h
1092     xform_asm
1093     xmm_clobbers
1094     yasm
1095 "
1096
1097 # options emitted with CONFIG_ prefix but not available on command line
1098 CONFIG_EXTRA="
1099     avutil
1100     gplv3
1101     lgplv3
1102 "
1103
1104 CMDLINE_SELECT="
1105     $ARCH_EXT_LIST
1106     $CONFIG_LIST
1107     $THREADS_LIST
1108     asm
1109     cross_compile
1110     debug
1111     extra_warnings
1112     logging
1113     optimizations
1114     stripping
1115     symver
1116     yasm
1117 "
1118
1119 PATHS_LIST='
1120     bindir
1121     datadir
1122     incdir
1123     libdir
1124     mandir
1125     prefix
1126     shlibdir
1127 '
1128
1129 CMDLINE_SET="
1130     $PATHS_LIST
1131     ar
1132     arch
1133     as
1134     build_suffix
1135     cc
1136     cpu
1137     cross_prefix
1138     dep_cc
1139     extra_version
1140     host_cc
1141     host_cflags
1142     host_ldflags
1143     host_libs
1144     host_os
1145     ld
1146     logfile
1147     malloc_prefix
1148     nm
1149     samples
1150     source_path
1151     strip
1152     sysinclude
1153     sysroot
1154     target_exec
1155     target_os
1156     target_path
1157 "
1158
1159 CMDLINE_APPEND="
1160     extra_cflags
1161 "
1162
1163 # code dependency declarations
1164
1165 # architecture extensions
1166
1167 armv5te_deps="arm"
1168 armv6_deps="arm"
1169 armv6t2_deps="arm"
1170 armvfp_deps="arm"
1171 iwmmxt_deps="arm"
1172 neon_deps="arm"
1173
1174 mmi_deps="mips"
1175
1176 altivec_deps="ppc"
1177 ppc4xx_deps="ppc"
1178
1179 vis_deps="sparc"
1180
1181 x86_64_suggest="cmov fast_cmov"
1182 amd3dnow_deps="mmx"
1183 amd3dnowext_deps="amd3dnow"
1184 mmx_deps="x86"
1185 mmx2_deps="mmx"
1186 sse_deps="mmx"
1187 ssse3_deps="sse"
1188 avx_deps="ssse3"
1189
1190 aligned_stack_if_any="ppc x86"
1191 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1192 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1193 fast_unaligned_if_any="armv6 ppc x86"
1194
1195 need_memalign="altivec neon sse"
1196 inline_asm_deps="!tms470"
1197
1198 symver_if_any="symver_asm_label symver_gnu_asm"
1199
1200 # subsystems
1201 dct_select="rdft"
1202 mdct_select="fft"
1203 rdft_select="fft"
1204
1205 # decoders / encoders / hardware accelerators
1206 aac_decoder_select="mdct rdft"
1207 aac_encoder_select="mdct"
1208 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1209 ac3_decoder_select="mdct ac3_parser"
1210 ac3_encoder_select="mdct"
1211 alac_encoder_select="lpc"
1212 amrnb_decoder_select="lsp"
1213 amrwb_decoder_select="lsp"
1214 atrac1_decoder_select="mdct"
1215 atrac3_decoder_select="mdct"
1216 binkaudio_dct_decoder_select="mdct rdft dct"
1217 binkaudio_rdft_decoder_select="mdct rdft"
1218 cavs_decoder_select="golomb"
1219 cook_decoder_select="mdct"
1220 cscd_decoder_suggest="zlib"
1221 dca_decoder_select="mdct"
1222 dnxhd_encoder_select="aandct"
1223 dxa_decoder_select="zlib"
1224 eac3_decoder_select="ac3_decoder"
1225 eamad_decoder_select="aandct"
1226 eatgq_decoder_select="aandct"
1227 eatqi_decoder_select="aandct"
1228 ffv1_decoder_select="golomb"
1229 flac_decoder_select="golomb"
1230 flac_encoder_select="golomb lpc"
1231 flashsv_decoder_select="zlib"
1232 flashsv_encoder_select="zlib"
1233 flv_decoder_select="h263_decoder"
1234 flv_encoder_select="h263_encoder"
1235 fraps_decoder_select="huffman"
1236 h261_encoder_select="aandct"
1237 h263_decoder_select="h263_parser"
1238 h263_encoder_select="aandct"
1239 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1240 h263i_decoder_select="h263_decoder"
1241 h263p_encoder_select="h263_encoder"
1242 h264_decoder_select="golomb h264dsp h264pred"
1243 h264_dxva2_hwaccel_deps="dxva2api_h"
1244 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1245 h264_vaapi_hwaccel_select="vaapi"
1246 h264_vdpau_decoder_select="vdpau h264_decoder"
1247 imc_decoder_select="fft mdct"
1248 jpegls_decoder_select="golomb"
1249 jpegls_encoder_select="golomb"
1250 ljpeg_encoder_select="aandct"
1251 loco_decoder_select="golomb"
1252 mjpeg_encoder_select="aandct"
1253 mlp_decoder_select="mlp_parser"
1254 mp1float_decoder_select="dct"
1255 mp2float_decoder_select="dct"
1256 mp3adufloat_decoder_select="dct"
1257 mp3float_decoder_select="dct"
1258 mp3on4float_decoder_select="dct"
1259 mpeg1video_encoder_select="aandct"
1260 mpeg2video_encoder_select="aandct"
1261 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1262 mpeg4_encoder_select="h263_encoder"
1263 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1264 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1265 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1266 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1267 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1268 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1269 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1270 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1271 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1272 msmpeg4v1_decoder_select="h263_decoder"
1273 msmpeg4v1_encoder_select="h263_encoder"
1274 msmpeg4v2_decoder_select="h263_decoder"
1275 msmpeg4v2_encoder_select="h263_encoder"
1276 msmpeg4v3_decoder_select="h263_decoder"
1277 msmpeg4v3_encoder_select="h263_encoder"
1278 nellymoser_decoder_select="mdct"
1279 nellymoser_encoder_select="mdct"
1280 png_decoder_select="zlib"
1281 png_encoder_select="zlib"
1282 qcelp_decoder_select="lsp"
1283 qdm2_decoder_select="mdct rdft"
1284 ra_144_encoder_select="lpc"
1285 rv10_decoder_select="h263_decoder"
1286 rv10_encoder_select="h263_encoder"
1287 rv20_decoder_select="h263_decoder"
1288 rv20_encoder_select="h263_encoder"
1289 rv30_decoder_select="golomb h264pred"
1290 rv40_decoder_select="golomb h264pred"
1291 shorten_decoder_select="golomb"
1292 sipr_decoder_select="lsp"
1293 snow_decoder_select="dwt"
1294 snow_encoder_select="aandct dwt"
1295 sonic_decoder_select="golomb"
1296 sonic_encoder_select="golomb"
1297 sonic_ls_encoder_select="golomb"
1298 svq1_encoder_select="aandct"
1299 svq3_decoder_select="golomb h264dsp h264pred"
1300 svq3_decoder_suggest="zlib"
1301 theora_decoder_select="vp3_decoder"
1302 tiff_decoder_suggest="zlib"
1303 tiff_encoder_suggest="zlib"
1304 truehd_decoder_select="mlp_decoder"
1305 tscc_decoder_select="zlib"
1306 twinvq_decoder_select="mdct lsp"
1307 vc1_decoder_select="h263_decoder"
1308 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1309 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1310 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1311 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1312 vorbis_decoder_select="mdct"
1313 vorbis_encoder_select="mdct"
1314 vp6_decoder_select="huffman"
1315 vp6a_decoder_select="vp6_decoder"
1316 vp6f_decoder_select="vp6_decoder"
1317 vp8_decoder_select="h264pred"
1318 wmapro_decoder_select="mdct"
1319 wmav1_decoder_select="mdct"
1320 wmav1_encoder_select="mdct"
1321 wmav2_decoder_select="mdct"
1322 wmav2_encoder_select="mdct"
1323 wmavoice_decoder_select="lsp rdft dct mdct"
1324 wmv1_decoder_select="h263_decoder"
1325 wmv1_encoder_select="h263_encoder"
1326 wmv2_decoder_select="h263_decoder"
1327 wmv2_encoder_select="h263_encoder"
1328 wmv3_decoder_select="vc1_decoder"
1329 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1330 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1331 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1332 zlib_decoder_select="zlib"
1333 zlib_encoder_select="zlib"
1334 zmbv_decoder_select="zlib"
1335 zmbv_encoder_select="zlib"
1336
1337 vaapi_deps="va_va_h"
1338 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1339
1340 # parsers
1341 h264_parser_select="golomb h264dsp h264pred"
1342
1343 # external libraries
1344 libdirac_decoder_deps="libdirac !libschroedinger"
1345 libdirac_encoder_deps="libdirac"
1346 libfaac_encoder_deps="libfaac"
1347 libgsm_decoder_deps="libgsm"
1348 libgsm_encoder_deps="libgsm"
1349 libgsm_ms_decoder_deps="libgsm"
1350 libgsm_ms_encoder_deps="libgsm"
1351 libmp3lame_encoder_deps="libmp3lame"
1352 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1353 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1354 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1355 libopenjpeg_decoder_deps="libopenjpeg"
1356 libschroedinger_decoder_deps="libschroedinger"
1357 libschroedinger_encoder_deps="libschroedinger"
1358 libspeex_decoder_deps="libspeex"
1359 libtheora_encoder_deps="libtheora"
1360 libvorbis_encoder_deps="libvorbis"
1361 libvpx_decoder_deps="libvpx"
1362 libvpx_encoder_deps="libvpx"
1363 libx264_encoder_deps="libx264"
1364 libxavs_encoder_deps="libxavs"
1365 libxvid_encoder_deps="libxvid"
1366
1367 # demuxers / muxers
1368 ac3_demuxer_select="ac3_parser"
1369 asf_stream_muxer_select="asf_muxer"
1370 avisynth_demuxer_deps="avisynth"
1371 dirac_demuxer_select="dirac_parser"
1372 eac3_demuxer_select="ac3_parser"
1373 flac_demuxer_select="flac_parser"
1374 ipod_muxer_select="mov_muxer"
1375 libnut_demuxer_deps="libnut"
1376 libnut_muxer_deps="libnut"
1377 matroska_audio_muxer_select="matroska_muxer"
1378 matroska_demuxer_suggest="zlib bzlib"
1379 mov_demuxer_suggest="zlib"
1380 mp3_demuxer_select="mpegaudio_parser"
1381 mp4_muxer_select="mov_muxer"
1382 mpegtsraw_demuxer_select="mpegts_demuxer"
1383 mxf_d10_muxer_select="mxf_muxer"
1384 ogg_demuxer_select="golomb"
1385 psp_muxer_select="mov_muxer"
1386 rtp_demuxer_select="sdp_demuxer"
1387 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1388 rtsp_demuxer_select="http_protocol rtpdec"
1389 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1390 sap_demuxer_select="sdp_demuxer"
1391 sap_muxer_select="rtp_muxer rtp_protocol"
1392 sdp_demuxer_select="rtpdec"
1393 spdif_muxer_select="aac_parser"
1394 tg2_muxer_select="mov_muxer"
1395 tgp_muxer_select="mov_muxer"
1396 w64_demuxer_deps="wav_demuxer"
1397
1398 # indevs / outdevs
1399 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1400 alsa_outdev_deps="alsa_asoundlib_h"
1401 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1402 dv1394_indev_deps="dv1394 dv_demuxer"
1403 jack_indev_deps="jack_jack_h"
1404 libdc1394_indev_deps="libdc1394"
1405 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1406 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1407 v4l_indev_deps="linux_videodev_h"
1408 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1409 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1410 vfwcap_indev_extralibs="-lavicap32"
1411 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1412 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1413
1414 # protocols
1415 gopher_protocol_deps="network"
1416 http_protocol_deps="network"
1417 http_protocol_select="tcp_protocol"
1418 mmsh_protocol_select="http_protocol"
1419 mmst_protocol_deps="network"
1420 rtmp_protocol_select="tcp_protocol"
1421 rtp_protocol_select="udp_protocol"
1422 tcp_protocol_deps="network"
1423 udp_protocol_deps="network"
1424
1425 # filters
1426 blackframe_filter_deps="gpl"
1427 cropdetect_filter_deps="gpl"
1428 frei0r_filter_deps="frei0r dlopen strtok_r"
1429 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1430 hqdn3d_filter_deps="gpl"
1431 scale_filter_deps="swscale"
1432 ocv_filter_deps="libopencv"
1433 yadif_filter_deps="gpl"
1434
1435 # libraries
1436 avdevice_deps="avcodec avformat"
1437 avformat_deps="avcodec"
1438
1439 # programs
1440 ffmpeg_deps="avcodec avformat swscale"
1441 ffmpeg_select="buffer_filter"
1442 ffplay_deps="avcodec avformat swscale sdl"
1443 ffplay_select="rdft"
1444 ffprobe_deps="avcodec avformat"
1445 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1446 ffserver_extralibs='$ldl'
1447
1448 doc_deps="texi2html"
1449
1450 # tests
1451
1452 test_deps(){
1453     suf1=$1
1454     suf2=$2
1455     shift 2
1456     for v; do
1457         dep=${v%=*}
1458         tests=${v#*=}
1459         for name in ${tests}; do
1460             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1461         done
1462     done
1463 }
1464
1465 set_ne_test_deps(){
1466     eval ${1}_be_test_deps="bigendian"
1467     eval ${1}_le_test_deps="!bigendian"
1468 }
1469
1470 test_deps _encoder _decoder                                             \
1471     adpcm_g726=g726                                                     \
1472     adpcm_ima_qt                                                        \
1473     adpcm_ima_wav                                                       \
1474     adpcm_ms                                                            \
1475     adpcm_swf                                                           \
1476     adpcm_yamaha=adpcm_yam                                              \
1477     alac                                                                \
1478     asv1                                                                \
1479     asv2                                                                \
1480     bmp                                                                 \
1481     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1482     dvvideo="dv dv50"                                                   \
1483     ffv1                                                                \
1484     flac                                                                \
1485     flashsv                                                             \
1486     flv                                                                 \
1487     gif                                                                 \
1488     h261                                                                \
1489     h263="h263 h263p"                                                   \
1490     huffyuv                                                             \
1491     jpegls                                                              \
1492     mjpeg="jpg mjpeg ljpeg"                                             \
1493     mp2                                                                 \
1494     mpeg1video="mpeg mpeg1b"                                            \
1495     mpeg2video="mpeg2 mpeg2thread"                                      \
1496     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1497     msmpeg4v3=msmpeg4                                                   \
1498     msmpeg4v2                                                           \
1499     pbm=pbmpipe                                                         \
1500     pcx                                                                 \
1501     pgm="pgm pgmpipe"                                                   \
1502     png                                                                 \
1503     ppm="ppm ppmpipe"                                                   \
1504     rawvideo="rgb yuv"                                                  \
1505     roq                                                                 \
1506     rv10                                                                \
1507     rv20                                                                \
1508     sgi                                                                 \
1509     snow="snow snowll"                                                  \
1510     svq1                                                                \
1511     targa=tga                                                           \
1512     tiff                                                                \
1513     wmav1                                                               \
1514     wmav2                                                               \
1515     wmv1                                                                \
1516     wmv2                                                                \
1517
1518 test_deps _muxer _demuxer                                               \
1519     aiff                                                                \
1520     pcm_alaw=alaw                                                       \
1521     asf                                                                 \
1522     au                                                                  \
1523     avi                                                                 \
1524     dv=dv_fmt                                                           \
1525     ffm                                                                 \
1526     flv=flv_fmt                                                         \
1527     gxf                                                                 \
1528     matroska=mkv                                                        \
1529     mmf                                                                 \
1530     mov                                                                 \
1531     pcm_mulaw=mulaw                                                     \
1532     mxf                                                                 \
1533     nut                                                                 \
1534     ogg                                                                 \
1535     rawvideo=pixfmt                                                     \
1536     rm                                                                  \
1537     swf                                                                 \
1538     mpegts=ts                                                           \
1539     voc                                                                 \
1540     wav                                                                 \
1541     yuv4mpegpipe=yuv4mpeg                                               \
1542
1543 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1544 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1545
1546 set_ne_test_deps pixdesc
1547 set_ne_test_deps pixfmts_copy
1548 set_ne_test_deps pixfmts_crop
1549 set_ne_test_deps pixfmts_hflip
1550 set_ne_test_deps pixfmts_null
1551 set_ne_test_deps pixfmts_pad
1552 set_ne_test_deps pixfmts_scale
1553 set_ne_test_deps pixfmts_vflip
1554
1555 # default parameters
1556
1557 logfile="config.log"
1558
1559 # installation paths
1560 prefix_default="/usr/local"
1561 bindir_default='${prefix}/bin'
1562 datadir_default='${prefix}/share/ffmpeg'
1563 incdir_default='${prefix}/include'
1564 libdir_default='${prefix}/lib'
1565 mandir_default='${prefix}/share/man'
1566 shlibdir_default="$libdir_default"
1567
1568 # toolchain
1569 ar_default="ar"
1570 cc_default="gcc"
1571 cc_version=\"unknown\"
1572 host_cc_default="gcc"
1573 ln_s="ln -sf"
1574 nm_default="nm"
1575 objformat="elf"
1576 ranlib="ranlib"
1577 strip_default="strip"
1578 yasmexe="yasm"
1579 nogas=":"
1580
1581 nm_opts='-g'
1582
1583 # machine
1584 arch_default=$(uname -m)
1585 cpu="generic"
1586
1587 # OS
1588 target_os_default=$(tolower $(uname -s))
1589 host_os=$target_os_default
1590
1591 # configurable options
1592 enable avcodec
1593 enable avdevice
1594 enable avfilter
1595 enable avformat
1596 enable avutil
1597 enable asm
1598 enable debug
1599 enable doc
1600 enable fastdiv
1601 enable ffmpeg
1602 enable ffplay
1603 enable ffprobe
1604 enable ffserver
1605 enable mpegaudio_hp
1606 enable network
1607 enable optimizations
1608 enable protocols
1609 enable static
1610 enable stripping
1611 enable swscale
1612 enable swscale_alpha
1613
1614 # build settings
1615 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1616 FFSERVERLDFLAGS=-Wl,-E
1617 LIBPREF="lib"
1618 LIBSUF=".a"
1619 FULLNAME='$(NAME)$(BUILDSUF)'
1620 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1621 SLIBPREF="lib"
1622 SLIBSUF=".so"
1623 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1624 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1625 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1626 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1627
1628 CC_O='-o $@'
1629
1630 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1631 host_libs='-lm'
1632
1633 target_path='$(CURDIR)'
1634
1635 # since the object filename is not given with the -MM flag, the compiler
1636 # is only able to print the basename, and we must add the path ourselves
1637 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1638 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1639
1640 # find source path
1641 source_path="$(dirname "$0")"
1642 enable source_path_used
1643 if test -f configure; then
1644     source_path="$(pwd)"
1645     disable source_path_used
1646 else
1647     source_path="$(cd "$source_path"; pwd)"
1648     echo "$source_path" | grep -q '[[:blank:]]' &&
1649         die "Out of tree builds are impossible with whitespace in source path."
1650     test -e "$source_path/config.h" &&
1651         die "Out of tree builds are impossible with config.h in source dir."
1652 fi
1653
1654 for v in "$@"; do
1655     r=${v#*=}
1656     l=${v%"$r"}
1657     r=$(sh_quote "$r")
1658     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1659 done
1660
1661 find_things(){
1662     thing=$1
1663     pattern=$2
1664     file=$source_path/$3
1665     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1666 }
1667
1668 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1669 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1670 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1671 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1672 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1673 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1674 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1675 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1676 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1677 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1678 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1679
1680 find_tests(){
1681     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1682 }
1683
1684 ACODEC_TESTS=$(find_tests acodec)
1685 VCODEC_TESTS=$(find_tests vsynth1)
1686 LAVF_TESTS=$(find_tests lavf)
1687 LAVFI_TESTS=$(find_tests lavfi)
1688 SEEK_TESTS=$(find_tests seek seek_)
1689
1690 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1691
1692 for n in $COMPONENT_LIST; do
1693     v=$(toupper ${n%s})_LIST
1694     eval enable \$$v
1695     eval ${n}_if_any="\$$v"
1696 done
1697
1698 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1699
1700 die_unknown(){
1701     echo "Unknown option \"$1\"."
1702     echo "See $0 --help for available options."
1703     exit 1
1704 }
1705
1706 show_list() {
1707     suffix=_$1
1708     shift
1709     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1710     exit 0
1711 }
1712
1713 for opt do
1714     optval="${opt#*=}"
1715     case "$opt" in
1716     --extra-ldflags=*) add_ldflags $optval
1717     ;;
1718     --extra-libs=*) add_extralibs $optval
1719     ;;
1720     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1721     ;;
1722     --enable-debug=*) debuglevel="$optval"
1723     ;;
1724     --disable-everything)
1725     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1726     ;;
1727     --enable-*=*|--disable-*=*)
1728     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1729     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1730     eval list=\$$(toupper $thing)_LIST
1731     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1732     $action $(filter "$name" $list)
1733     ;;
1734     --enable-?*|--disable-?*)
1735     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1736     if is_in $option $COMPONENT_LIST; then
1737         test $action = disable && action=unset
1738         eval $action \$$(toupper ${option%s})_LIST
1739     elif is_in $option $CMDLINE_SELECT; then
1740         $action $option
1741     else
1742         die_unknown $opt
1743     fi
1744     ;;
1745     --list-*)
1746         NAME="${opt#--list-}"
1747         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1748         NAME=${NAME%s}
1749         eval show_list $NAME \$$(toupper $NAME)_LIST
1750     ;;
1751     --help|-h) show_help
1752     ;;
1753     *)
1754     optname="${opt%%=*}"
1755     optname="${optname#--}"
1756     optname=$(echo "$optname" | sed 's/-/_/g')
1757     if is_in $optname $CMDLINE_SET; then
1758         eval $optname='$optval'
1759     elif is_in $optname $CMDLINE_APPEND; then
1760         append $optname "$optval"
1761     else
1762          die_unknown $opt
1763     fi
1764     ;;
1765     esac
1766 done
1767
1768 disabled logging && logfile=/dev/null
1769
1770 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1771 set >> $logfile
1772
1773 test -n "$cross_prefix" && enable cross_compile
1774
1775 if enabled cross_compile; then
1776     test -n "$arch" && test -n "$target_os" ||
1777         die "Must specify target arch and OS when cross-compiling"
1778 fi
1779
1780 set_default arch target_os
1781
1782 ar_default="${cross_prefix}${ar_default}"
1783 cc_default="${cross_prefix}${cc_default}"
1784 nm_default="${cross_prefix}${nm_default}"
1785 ranlib="${cross_prefix}${ranlib}"
1786 strip_default="${cross_prefix}${strip_default}"
1787
1788 sysinclude_default="${sysroot}/usr/include"
1789
1790 set_default cc nm strip sysinclude
1791 enabled cross_compile || host_cc_default=$cc
1792 set_default host_cc
1793
1794 exesuf() {
1795     case $1 in
1796         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1797     esac
1798 }
1799
1800 EXESUF=$(exesuf $target_os)
1801 HOSTEXESUF=$(exesuf $host_os)
1802
1803 # set temporary file name
1804 : ${TMPDIR:=$TEMPDIR}
1805 : ${TMPDIR:=$TMP}
1806 : ${TMPDIR:=/tmp}
1807
1808 if ! check_cmd mktemp -u XXXXXX; then
1809     # simple replacement for missing mktemp
1810     # NOT SAFE FOR GENERAL USE
1811     mktemp(){
1812         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1813     }
1814 fi
1815
1816 tmpfile(){
1817     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1818         (set -C; exec > $tmp) 2>/dev/null ||
1819         die "Unable to create temporary file in $TMPDIR."
1820     append TMPFILES $tmp
1821     eval $1=$tmp
1822 }
1823
1824 trap 'rm -f -- $TMPFILES' EXIT
1825
1826 tmpfile TMPC  .c
1827 tmpfile TMPE  $EXESUF
1828 tmpfile TMPH  .h
1829 tmpfile TMPO  .o
1830 tmpfile TMPS  .S
1831 tmpfile TMPV  .ver
1832 tmpfile TMPSH .sh
1833 tmpfile TMPASM .asm
1834
1835 unset -f mktemp
1836
1837 chmod +x $TMPE
1838
1839 # make sure we can execute files in $TMPDIR
1840 cat > $TMPSH 2>> $logfile <<EOF
1841 #! /bin/sh
1842 EOF
1843 chmod +x $TMPSH >> $logfile 2>&1
1844 if ! $TMPSH >> $logfile 2>&1; then
1845     cat <<EOF
1846 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1847 variable to another directory and make sure that it is not mounted noexec.
1848 EOF
1849     die "Sanity test failed."
1850 fi
1851
1852 filter_cflags=echo
1853 filter_cppflags=echo
1854 filter_asflags=echo
1855
1856 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1857     cc_type=llvm_gcc
1858     cc_version=__VERSION__
1859     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1860     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1861     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1862     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1863     speed_cflags='-O3'
1864     size_cflags='-Os'
1865 elif $cc -v 2>&1 | grep -qi ^gcc; then
1866     cc_type=gcc
1867     cc_version=__VERSION__
1868     gcc_version=$($cc --version | head -n1)
1869     gcc_basever=$($cc -dumpversion)
1870     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1871     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1872     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1873     if ! $cc -dumpversion | grep -q '^2\.'; then
1874         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1875         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1876     fi
1877     speed_cflags='-O3'
1878     size_cflags='-Os'
1879 elif $cc --version 2>/dev/null | grep -q Intel; then
1880     cc_type=icc
1881     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1882     cc_ident=$($cc --version | head -n1)
1883     icc_version=$($cc -dumpversion)
1884     CC_DEPFLAGS='-MMD'
1885     AS_DEPFLAGS='-MMD'
1886     speed_cflags='-O3'
1887     size_cflags='-Os'
1888     noopt_cflags='-O1'
1889 elif $cc -v 2>&1 | grep -q xlc; then
1890     cc_type=xlc
1891     cc_version="AV_STRINGIFY(__IBMC__)"
1892     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1893     speed_cflags='-O5'
1894     size_cflags='-O5 -qcompact'
1895 elif $cc -V 2>/dev/null | grep -q Compaq; then
1896     cc_type=ccc
1897     cc_version="AV_STRINGIFY(__DECC_VER)"
1898     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1899     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1900     debuglevel=3
1901     add_ldflags -Wl,-z,now # calls to libots crash without this
1902     speed_cflags='-fast'
1903     size_cflags='-O1'
1904 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1905     test -d "$sysroot" || die "No valid sysroot specified."
1906     cc_type=armcc
1907     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1908     cc_ident=$($cc --vsn | head -n1)
1909     armcc_conf="$PWD/armcc.conf"
1910     $cc --arm_linux_configure                 \
1911         --arm_linux_config_file="$armcc_conf" \
1912         --configure_sysroot="$sysroot"        \
1913         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1914         die "Error creating armcc configuration file."
1915     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1916     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1917     as_default="${cross_prefix}gcc"
1918     CC_DEPFLAGS='-MMD'
1919     AS_DEPFLAGS='-MMD'
1920     speed_cflags='-O3'
1921     size_cflags='-Os'
1922     filter_asflags="filter_out -W${armcc_opt}*"
1923 elif $cc -version 2>/dev/null | grep -q TMS470; then
1924     cc_type=tms470
1925     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1926     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1927     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1928     CC_O='-fr=$(@D)'
1929     as_default="${cross_prefix}gcc"
1930     ld_default="${cross_prefix}gcc"
1931     TMPO=$(basename $TMPC .c).o
1932     append TMPFILES $TMPO
1933     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1934     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1935     AS_DEPFLAGS='-MMD'
1936     speed_cflags='-O3 -mf=5'
1937     size_cflags='-O3 -mf=2'
1938     filter_cflags=tms470_flags
1939     tms470_flags(){
1940         for flag; do
1941             case $flag in
1942                 -march=*|-mcpu=*)
1943                     case "${flag#*=}" in
1944                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1945                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1946                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1947                         armv6*|arm11*)          echo -mv=6   ;;
1948                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1949                                                 echo -mv=5e  ;;
1950                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1951                     esac
1952                     ;;
1953                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1954                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1955                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1956                 -msoft-float)   echo --float_support=vfplib       ;;
1957                 -O[0-3]|-mf=*)  echo $flag                        ;;
1958                 -g)             echo -g -mn                       ;;
1959                 -pds=*)         echo $flag                        ;;
1960             esac
1961         done
1962     }
1963 elif $cc -v 2>&1 | grep -q clang; then
1964     cc_type=clang
1965     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1966         cc_version=__clang_version__ || cc_version=__VERSION__
1967     cc_ident=$($cc --version | head -n1)
1968     CC_DEPFLAGS='-MMD'
1969     AS_DEPFLAGS='-MMD'
1970     speed_cflags='-O3'
1971     size_cflags='-Os'
1972 elif $cc -V 2>&1 | grep -q Sun; then
1973     cc_type=suncc
1974     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1975     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1976     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1977     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1978     speed_cflags='-O5'
1979     size_cflags='-O5 -xspace'
1980     filter_cflags=suncc_flags
1981     suncc_flags(){
1982         for flag; do
1983             case $flag in
1984                 -march=*|-mcpu=*)
1985                     case "${flag#*=}" in
1986                         native)                   echo -xtarget=native       ;;
1987                         v9|niagara)               echo -xarch=sparc          ;;
1988                         ultrasparc)               echo -xarch=sparcvis       ;;
1989                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1990                         i586|pentium)             echo -xchip=pentium        ;;
1991                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1992                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1993                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1994                         pentium4*)          echo -xtarget=pentium4           ;;
1995                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1996                         *-sse3)             echo -xarch=sse3                 ;;
1997                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1998                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1999                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2000                         k8|opteron|athlon64|athlon-fx)
2001                                                   echo -xarch=sse2a          ;;
2002                         athlon*)                  echo -xarch=pentium_proa   ;;
2003                     esac
2004                     ;;
2005                 -std=c99)             echo -xc99              ;;
2006                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2007                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2008                 -W*,*)                echo $flag              ;;
2009                 -f*-*|-W*)                                    ;;
2010                 *)                    echo $flag              ;;
2011             esac
2012         done
2013     }
2014 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2015     cc_type=pathscale
2016     cc_version=__PATHSCALE__
2017     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2018     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2019     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2020     speed_cflags='-O2'
2021     size_cflags='-Os'
2022 elif $cc -v 2>&1 | grep -q Open64; then
2023     cc_type=open64
2024     cc_version=__OPEN64__
2025     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2026     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2027     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2028     speed_cflags='-O2'
2029     size_cflags='-Os'
2030 fi
2031
2032 test -n "$cc_type" && enable $cc_type ||
2033     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2034
2035 : ${as_default:=$cc}
2036 : ${dep_cc_default:=$cc}
2037 : ${ld_default:=$cc}
2038 set_default ar as dep_cc ld
2039
2040 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2041 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2042
2043 add_cflags $extra_cflags
2044 add_asflags $extra_cflags
2045
2046 if test -n "$sysroot"; then
2047     case "$cc_type" in
2048         gcc|llvm_gcc)
2049             add_cppflags --sysroot="$sysroot"
2050             add_ldflags --sysroot="$sysroot"
2051         ;;
2052         tms470)
2053             add_cppflags -I"$sysinclude"
2054             add_ldflags  --sysroot="$sysroot"
2055         ;;
2056         clang)
2057             add_cppflags -isysroot "$sysroot"
2058             add_ldflags -isysroot "$sysroot"
2059         ;;
2060     esac
2061 fi
2062
2063 if test "$cpu" = host; then
2064     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2065
2066     case "$cc_type" in
2067         gcc|llvm_gcc)
2068             check_native(){
2069                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2070                 sed -n "/$1=/{
2071                             s/.*$1=\\([^ ]*\\).*/\\1/
2072                             p
2073                             q
2074                         }" $TMPE
2075             }
2076             cpu=$(check_native -march || check_native -mcpu)
2077         ;;
2078     esac
2079
2080     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2081 fi
2082
2083 # Deal with common $arch aliases
2084 case "$arch" in
2085     arm*)
2086         arch="arm"
2087     ;;
2088     mips|mipsel|IP*)
2089         arch="mips"
2090     ;;
2091     mips64*)
2092         arch="mips"
2093         subarch="mips64"
2094     ;;
2095     parisc|hppa)
2096         arch="parisc"
2097     ;;
2098     parisc64|hppa64)
2099         arch="parisc"
2100         subarch="parisc64"
2101     ;;
2102     "Power Macintosh"|ppc|powerpc)
2103         arch="ppc"
2104     ;;
2105     ppc64|powerpc64)
2106         arch="ppc"
2107         subarch="ppc64"
2108     ;;
2109     s390|s390x)
2110         arch="s390"
2111     ;;
2112     sh4|sh)
2113         arch="sh4"
2114     ;;
2115     sun4u|sparc64)
2116         arch="sparc"
2117         subarch="sparc64"
2118     ;;
2119     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2120         arch="x86"
2121     ;;
2122 esac
2123
2124 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2125 enable $arch
2126
2127 # Add processor-specific flags
2128 if test "$cpu" = generic; then
2129     : do nothing
2130 elif enabled ppc; then
2131
2132     case $(tolower $cpu) in
2133         601|ppc601|powerpc601)
2134             cpuflags="-mcpu=601"
2135             disable altivec
2136         ;;
2137         603*|ppc603*|powerpc603*)
2138             cpuflags="-mcpu=603"
2139             disable altivec
2140         ;;
2141         604*|ppc604*|powerpc604*)
2142             cpuflags="-mcpu=604"
2143             disable altivec
2144         ;;
2145         g3|75*|ppc75*|powerpc75*)
2146             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2147             disable altivec
2148         ;;
2149         g4|745*|ppc745*|powerpc745*)
2150             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2151         ;;
2152         74*|ppc74*|powerpc74*)
2153             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2154         ;;
2155         g5|970|ppc970|powerpc970|power4*)
2156             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2157         ;;
2158         cell)
2159             cpuflags="-mcpu=cell"
2160             enable ldbrx
2161         ;;
2162         e500v2)
2163             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2164             disable altivec
2165         ;;
2166         e500)
2167             cpuflags="-mcpu=8540 -mhard-float"
2168             disable altivec
2169         ;;
2170     esac
2171
2172 elif enabled x86; then
2173
2174     case $cpu in
2175         i[345]86|pentium)
2176             cpuflags="-march=$cpu"
2177             disable mmx
2178         ;;
2179         # targets that do NOT support conditional mov (cmov)
2180         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2181             cpuflags="-march=$cpu"
2182             disable cmov
2183         ;;
2184         # targets that do support conditional mov (cmov)
2185         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2186             cpuflags="-march=$cpu"
2187             enable cmov
2188             enable fast_cmov
2189         ;;
2190         # targets that do support conditional mov but on which it's slow
2191         pentium4|pentium4m|prescott|nocona)
2192             cpuflags="-march=$cpu"
2193             enable cmov
2194             disable fast_cmov
2195         ;;
2196     esac
2197
2198 elif enabled sparc; then
2199
2200     case $cpu in
2201         niagara)
2202             cpuflags="-mcpu=$cpu"
2203             disable vis
2204         ;;
2205         sparc64)
2206             cpuflags="-mcpu=v9"
2207         ;;
2208     esac
2209
2210 elif enabled arm; then
2211
2212     case $cpu in
2213         armv*)
2214             cpuflags="-march=$cpu"
2215             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2216         ;;
2217         *)
2218             cpuflags="-mcpu=$cpu"
2219             case $cpu in
2220                 cortex-a*)                               subarch=armv7a  ;;
2221                 cortex-r*)                               subarch=armv7r  ;;
2222                 cortex-m*)                               subarch=armv7m  ;;
2223                 arm11*)                                  subarch=armv6   ;;
2224                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2225                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2226             esac
2227         ;;
2228     esac
2229
2230 elif enabled alpha; then
2231
2232     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2233
2234 elif enabled bfin; then
2235
2236     cpuflags="-mcpu=$cpu"
2237
2238 elif enabled mips; then
2239
2240     cpuflags="-march=$cpu"
2241
2242 elif enabled avr32; then
2243
2244     case $cpu in
2245         ap7[02]0[0-2])
2246             subarch="avr32_ap"
2247             cpuflags="-mpart=$cpu"
2248         ;;
2249         ap)
2250             subarch="avr32_ap"
2251             cpuflags="-march=$cpu"
2252         ;;
2253         uc3[ab]*)
2254             subarch="avr32_uc"
2255             cpuflags="-mcpu=$cpu"
2256         ;;
2257         uc)
2258             subarch="avr32_uc"
2259             cpuflags="-march=$cpu"
2260         ;;
2261     esac
2262
2263 fi
2264
2265 add_cflags $cpuflags
2266 add_asflags $cpuflags
2267
2268 # compiler sanity check
2269 check_exec <<EOF
2270 int main(void){ return 0; }
2271 EOF
2272 if test "$?" != 0; then
2273     echo "$cc is unable to create an executable file."
2274     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2275         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2276         echo "Only do this if you know what cross compiling means."
2277     fi
2278     die "C compiler test failed."
2279 fi
2280
2281 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2282 check_cflags -std=c99
2283 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2284 #include <stdlib.h>
2285 EOF
2286 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2287 #include <stdlib.h>
2288 EOF
2289
2290 check_host_cflags -std=c99
2291
2292 case "$arch" in
2293     alpha|ia64|mips|parisc|sparc)
2294         spic=$shared
2295     ;;
2296     x86)
2297         subarch="x86_32"
2298         check_cc <<EOF && subarch="x86_64"
2299         int test[(int)sizeof(char*) - 7];
2300 EOF
2301         if test "$subarch" = "x86_64"; then
2302             spic=$shared
2303         fi
2304     ;;
2305 esac
2306
2307 enable $subarch
2308 enabled spic && enable pic
2309
2310 # OS specific
2311 case $target_os in
2312     haiku)
2313         prefix_default="/boot/common"
2314         network_extralibs="-lnetwork"
2315         host_libs=
2316         ;;
2317     sunos)
2318         FFSERVERLDFLAGS=""
2319         SHFLAGS='-shared -Wl,-h,$$(@F)'
2320         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2321         network_extralibs="-lsocket -lnsl"
2322         add_cppflags -D__EXTENSIONS__
2323         nm_opts='-P -g'
2324         ;;
2325     netbsd)
2326         disable symver
2327         oss_indev_extralibs="-lossaudio"
2328         oss_outdev_extralibs="-lossaudio"
2329         add_cppflags -D_XOPEN_SOURCE=600
2330         ;;
2331     openbsd)
2332         enable malloc_aligned
2333         # On OpenBSD 4.5. the compiler does not use PIC unless
2334         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2335         # however the generated executable will not do anything
2336         # (simply quits with exit-code 1, no crash, no output).
2337         # Thus explicitly enable PIC here.
2338         enable pic
2339         disable symver
2340         SHFLAGS='-shared'
2341         oss_indev_extralibs="-lossaudio"
2342         oss_outdev_extralibs="-lossaudio"
2343         ;;
2344     dragonfly)
2345         enable malloc_aligned
2346         disable symver
2347         ;;
2348     freebsd)
2349         enable malloc_aligned
2350         ;;
2351     bsd/os)
2352         add_extralibs -lpoll -lgnugetopt
2353         strip="strip -d"
2354         ;;
2355     darwin)
2356         enable malloc_aligned
2357         gas="gas-preprocessor.pl $cc"
2358         enabled ppc && add_asflags -force_cpusubtype_ALL
2359         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2360         strip="${strip} -x"
2361         add_ldflags -Wl,-dynamic,-search_paths_first
2362         SLIBSUF=".dylib"
2363         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2364         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2365         FFSERVERLDFLAGS=-Wl,-bind_at_load
2366         objformat="macho"
2367         enabled x86_64 && objformat="macho64"
2368         enabled_any pic shared ||
2369             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2370         ;;
2371     mingw32*)
2372         if test $target_os = "mingw32ce"; then
2373             disable network
2374         else
2375             target_os=mingw32
2376         fi
2377         LIBTARGET=i386
2378         if enabled x86_64; then
2379             enable malloc_aligned
2380             LIBTARGET=x64
2381         elif enabled arm; then
2382             LIBTARGET=arm
2383         fi
2384         shlibdir_default="$bindir_default"
2385         disable ffserver
2386         SLIBPREF=""
2387         SLIBSUF=".dll"
2388         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2389         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2390         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2391         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2392             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2393             install -d "$(LIBDIR)"; \
2394             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2395         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2396         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'
2397         objformat="win32"
2398         enable dos_paths
2399         check_cflags -fno-common
2400         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2401                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2402                 die "ERROR: MinGW runtime version must be >= 3.15."
2403         ;;
2404     cygwin*)
2405         target_os=cygwin
2406         shlibdir_default="$bindir_default"
2407         SLIBPREF="cyg"
2408         SLIBSUF=".dll"
2409         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2410         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2411         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2412         objformat="win32"
2413         enable dos_paths
2414         check_cflags -fno-common
2415         ;;
2416     *-dos|freedos|opendos)
2417         disable ffplay ffserver
2418         disable $INDEV_LIST $OUTDEV_LIST
2419         network_extralibs="-lsocket"
2420         objformat="coff"
2421         enable dos_paths
2422         ;;
2423     linux)
2424         enable dv1394
2425         ;;
2426     irix*)
2427         target_os=irix
2428         ranlib="echo ignoring ranlib"
2429         ;;
2430     os/2*)
2431         strip="lxlite -CS"
2432         ln_s="cp -f"
2433         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2434         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2435         FFSERVERLDFLAGS=""
2436         LIBSUF="_s.a"
2437         SLIBPREF=""
2438         SLIBSUF=".dll"
2439         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2440         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2441         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2442           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2443           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2444           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2445           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2446           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2447         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2448           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2449         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2450         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2451         enable dos_paths
2452         ;;
2453     gnu/kfreebsd)
2454         ;;
2455     gnu)
2456         ;;
2457     qnx)
2458         add_cppflags -D_QNX_SOURCE
2459         network_extralibs="-lsocket"
2460         ;;
2461     none)
2462         ;;
2463     *)
2464         die "Unknown OS '$target_os'."
2465         ;;
2466 esac
2467
2468 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2469
2470 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2471
2472 set_default $PATHS_LIST
2473
2474 # we need to build at least one lib type
2475 if ! enabled_any static shared; then
2476     cat <<EOF
2477 At least one library type must be built.
2478 Specify --enable-static to build the static libraries or --enable-shared to
2479 build the shared libraries as well. To only build the shared libraries specify
2480 --disable-static in addition to --enable-shared.
2481 EOF
2482     exit 1;
2483 fi
2484
2485 disabled static && LIBNAME=""
2486
2487 die_license_disabled() {
2488     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2489 }
2490
2491 die_license_disabled gpl libx264
2492 die_license_disabled gpl libxavs
2493 die_license_disabled gpl libxvid
2494 die_license_disabled gpl postproc
2495 die_license_disabled gpl x11grab
2496
2497 die_license_disabled nonfree libfaac
2498
2499 die_license_disabled version3 libopencore_amrnb
2500 die_license_disabled version3 libopencore_amrwb
2501
2502 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2503
2504 disabled optimizations || check_cflags -fomit-frame-pointer
2505
2506 enable_pic() {
2507     enable pic
2508     add_cppflags -DPIC
2509     add_cflags   -fPIC
2510     add_asflags  -fPIC
2511 }
2512
2513 enabled pic && enable_pic
2514
2515 check_cc <<EOF || die "Symbol mangling check failed."
2516 int ff_extern;
2517 EOF
2518 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2519 extern_prefix=${sym%%ff_extern*}
2520
2521 check_cc <<EOF && enable inline_asm
2522 void foo(void) { __asm__ volatile ("" ::); }
2523 EOF
2524
2525 _restrict=
2526 for restrict_keyword in restrict __restrict__ __restrict; do
2527     check_cc <<EOF && _restrict=$restrict_keyword && break
2528 void foo(char * $restrict_keyword p);
2529 EOF
2530 done
2531
2532 check_cc <<EOF && enable attribute_packed
2533 struct { int x; } __attribute__((packed)) x;
2534 EOF
2535
2536 check_cc <<EOF && enable attribute_may_alias
2537 union { int x; } __attribute__((may_alias)) x;
2538 EOF
2539
2540 check_cc <<EOF || die "endian test failed"
2541 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2542 EOF
2543 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2544
2545 if enabled alpha; then
2546
2547     check_cflags -mieee
2548
2549 elif enabled arm; then
2550
2551     check_cflags -marm
2552     nogas=die
2553
2554     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2555         enable vfp_args
2556     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2557         case "${cross_prefix:-$cc}" in
2558             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2559             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2560 __asm__ (".eabi_attribute 28, 1");
2561 int main(void) { return 0; }
2562 EOF
2563         esac
2564         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2565     fi
2566
2567     # We have to check if pld is a nop and disable it.
2568     check_asm pld '"pld [r0]"'
2569
2570     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2571     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2572     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2573     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2574     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2575     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2576
2577     enabled_all armv6t2 shared !pic && enable_pic
2578
2579 elif enabled mips; then
2580
2581     check_asm loongson '"dmult.g $1, $2, $3"'
2582     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2583
2584 elif enabled ppc; then
2585
2586     enable local_aligned_8 local_aligned_16
2587
2588     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2589     check_asm ibm_asm   '"add 0, 0, 0"'
2590     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2591     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2592
2593     # AltiVec flags: The FSF version of GCC differs from the Apple version
2594     if enabled altivec; then
2595         nogas=warn
2596         check_cflags -maltivec -mabi=altivec &&
2597         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2598         check_cflags -faltivec
2599
2600         # check if our compiler supports Motorola AltiVec C API
2601         check_cc <<EOF || disable altivec
2602 $inc_altivec_h
2603 int main(void) {
2604     vector signed int v1, v2, v3;
2605     v1 = vec_add(v2,v3);
2606     return 0;
2607 }
2608 EOF
2609
2610         # check if our compiler supports braces for vector declarations
2611         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2612 $inc_altivec_h
2613 int main (void) { (vector int) {1}; return 0; }
2614 EOF
2615     fi
2616
2617 elif enabled sparc; then
2618
2619     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2620         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2621
2622 elif enabled x86; then
2623
2624     enable local_aligned_8 local_aligned_16
2625
2626     # check whether EBP is available on x86
2627     # As 'i' is stored on the stack, this program will crash
2628     # if the base pointer is used to access it because the
2629     # base pointer is cleared in the inline assembly code.
2630     check_exec_crash <<EOF && enable ebp_available
2631     volatile int i=0;
2632     __asm__ volatile (
2633         "xorl %%ebp, %%ebp"
2634     ::: "%ebp");
2635     return i;
2636 EOF
2637
2638     # check whether EBX is available on x86
2639     check_asm ebx_available '""::"b"(0)' &&
2640         check_asm ebx_available '"":::"%ebx"'
2641
2642     # check whether xmm clobbers are supported
2643     check_asm xmm_clobbers '"":::"%xmm0"'
2644
2645     # check whether more than 10 operands are supported
2646     check_cc <<EOF && enable ten_operands
2647 int main(void) {
2648     int x=0;
2649     __asm__ volatile(
2650         ""
2651         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2652     );
2653     return 0;
2654 }
2655 EOF
2656
2657     # check whether binutils is new enough to compile SSSE3/MMX2
2658     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2659     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2660
2661     check_asm bswap '"bswap %%eax" ::: "%eax"'
2662
2663     if ! disabled_any asm mmx yasm; then
2664         if check_cmd $yasmexe --version; then
2665             enabled x86_64 && yasm_extra="-m amd64"
2666             yasm_debug="-g dwarf2"
2667         elif check_cmd nasm -v; then
2668             yasmexe=nasm
2669             yasm_debug="-g -F dwarf"
2670             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2671         fi
2672
2673         YASMFLAGS="-f $objformat $yasm_extra"
2674         enabled pic               && append YASMFLAGS "-DPIC"
2675         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2676         case "$objformat" in
2677             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2678         esac
2679
2680         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2681             die "yasm not found, use --disable-yasm for a crippled build"
2682         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2683     fi
2684
2685     case "$cpu" in
2686         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2687             disable fast_clz
2688         ;;
2689     esac
2690
2691 fi
2692
2693 if enabled asm; then
2694     as=${gas:=$as}
2695     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2696         $nogas "GNU assembler not found, install gas-preprocessor"
2697 fi
2698
2699 if check_func dlopen; then
2700     ldl=
2701 elif check_func dlopen -ldl; then
2702     ldl=-ldl
2703 fi
2704
2705 if enabled network; then
2706     check_type "sys/types.h sys/socket.h" socklen_t
2707     check_type netdb.h "struct addrinfo"
2708     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2709     check_type netinet/in.h "struct sockaddr_in6"
2710     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2711     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2712     # Prefer arpa/inet.h over winsock2
2713     if check_header arpa/inet.h ; then
2714         check_func closesocket
2715     elif check_header winsock2.h ; then
2716         check_func_headers winsock2.h closesocket -lws2 && \
2717             network_extralibs="-lws2" || \
2718         { check_func_headers winsock2.h closesocket -lws2_32 && \
2719             network_extralibs="-lws2_32"; }
2720         check_type ws2tcpip.h socklen_t
2721         check_type ws2tcpip.h "struct addrinfo"
2722         check_type ws2tcpip.h "struct ipv6_mreq"
2723         check_type ws2tcpip.h "struct sockaddr_in6"
2724         check_type ws2tcpip.h "struct sockaddr_storage"
2725         check_struct winsock2.h "struct sockaddr" sa_len
2726     else
2727         disable network
2728     fi
2729 fi
2730
2731 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2732 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2733
2734 check_func  fcntl
2735 check_func  fork
2736 check_func  getaddrinfo $network_extralibs
2737 check_func  gethrtime
2738 check_func  getrusage
2739 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2740 check_func  inet_aton $network_extralibs
2741 check_func  isatty
2742 check_func  ${malloc_prefix}memalign            && enable memalign
2743 check_func  mkstemp
2744 check_func  mmap
2745 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2746 check_func  setrlimit
2747 check_func  strerror_r
2748 check_func  strtok_r
2749 check_func_headers io.h setmode
2750 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2751 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2752 check_func_headers windows.h GetProcessTimes
2753 check_func_headers windows.h MapViewOfFile
2754 check_func_headers windows.h VirtualAlloc
2755
2756 check_header conio.h
2757 check_header dlfcn.h
2758 check_header dxva2api.h
2759 check_header malloc.h
2760 check_header poll.h
2761 check_header sys/mman.h
2762 check_header sys/resource.h
2763 check_header sys/select.h
2764 check_header termios.h
2765 check_header vdpau/vdpau.h
2766 check_header vdpau/vdpau_x11.h
2767 check_header X11/extensions/XvMClib.h
2768
2769 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2770
2771 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2772      enabled_any $need_memalign ; then
2773     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2774 fi
2775
2776 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2777 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2778
2779 # check for some common methods of building with pthread support
2780 # do this before the optional library checks as some of them require pthreads
2781 if ! disabled pthreads && ! enabled w32threads; then
2782     enable pthreads
2783     if check_func pthread_create; then
2784         :
2785     elif check_func pthread_create -pthread; then
2786         add_cflags -pthread
2787         add_extralibs -pthread
2788     elif check_func pthread_create -pthreads; then
2789         add_cflags -pthreads
2790         add_extralibs -pthreads
2791     elif check_func pthread_create -lpthreadGC2; then
2792         add_extralibs -lpthreadGC2
2793     elif ! check_lib pthread.h pthread_create -lpthread; then
2794         disable pthreads
2795     fi
2796 fi
2797
2798 for thread in $THREADS_LIST; do
2799     if enabled $thread; then
2800         test -n "$thread_type" &&
2801             die "ERROR: Only one thread type must be selected." ||
2802             thread_type="$thread"
2803     fi
2804 done
2805
2806 check_lib math.h sin -lm
2807 disabled vaapi || check_lib va/va.h vaInitialize -lva
2808
2809 check_mathfunc exp2
2810 check_mathfunc exp2f
2811 check_mathfunc llrint
2812 check_mathfunc llrintf
2813 check_mathfunc log2
2814 check_mathfunc log2f
2815 check_mathfunc lrint
2816 check_mathfunc lrintf
2817 check_mathfunc round
2818 check_mathfunc roundf
2819 check_mathfunc truncf
2820
2821 # these are off by default, so fail if requested and not available
2822 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2823 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2824 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2825                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2826                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2827 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2828 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2829 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2830 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2831 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2832 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2833 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2834                         die "ERROR: libopencv not found"; }
2835 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2836 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2837                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2838 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2839                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2840 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2841 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2842 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2843 enabled libvpx     && {
2844     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2845                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2846     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2847                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2848 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2849                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2850                         die "ERROR: libx264 version must be >= 0.99."; }
2851 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2852 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2853 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2854
2855 # libdc1394 check
2856 if enabled libdc1394; then
2857     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2858         enable libdc1394_2; } ||
2859     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2860         enable libdc1394_1; } ||
2861     die "ERROR: No version of libdc1394 found "
2862 fi
2863
2864 SDL_CONFIG="${cross_prefix}sdl-config"
2865 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2866     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2867     sdl_libs=$("${SDL_CONFIG}" --libs)
2868     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2869     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2870     enable sdl &&
2871     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2872 fi
2873
2874 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2875
2876 check_header linux/videodev.h
2877 check_header linux/videodev2.h
2878 check_header sys/videoio.h
2879
2880 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2881 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2882 # w32api 3.12 had it defined wrong
2883 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2884
2885 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2886 { check_header dev/bktr/ioctl_meteor.h &&
2887   check_header dev/bktr/ioctl_bt848.h; } ||
2888 { check_header machine/ioctl_meteor.h &&
2889   check_header machine/ioctl_bt848.h; } ||
2890 { check_header dev/video/meteor/ioctl_meteor.h &&
2891   check_header dev/video/bktr/ioctl_bt848.h; } ||
2892 check_header dev/ic/bt8xx.h
2893
2894 check_header sys/soundcard.h
2895 check_header soundcard.h
2896
2897 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2898
2899 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2900
2901 enabled x11grab                         &&
2902 check_header X11/Xlib.h                 &&
2903 check_header X11/extensions/XShm.h      &&
2904 check_header X11/extensions/Xfixes.h    &&
2905 check_func XOpenDisplay -lX11           &&
2906 check_func XShmCreateImage -lX11 -lXext &&
2907 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2908
2909 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2910 check_cpp_condition \
2911     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2912     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2913       disable vdpau; }
2914 fi
2915
2916 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2917
2918 # add some useful compiler flags if supported
2919 check_cflags -Wdeclaration-after-statement
2920 check_cflags -Wall
2921 check_cflags -Wno-parentheses
2922 check_cflags -Wno-switch
2923 check_cflags -Wdisabled-optimization
2924 check_cflags -Wpointer-arith
2925 check_cflags -Wredundant-decls
2926 check_cflags -Wno-pointer-sign
2927 check_cflags -Wcast-qual
2928 check_cflags -Wwrite-strings
2929 check_cflags -Wtype-limits
2930 check_cflags -Wundef
2931 check_cflags -Wmissing-prototypes
2932 enabled extra_warnings && check_cflags -Winline
2933
2934 # add some linker flags
2935 check_ldflags -Wl,--warn-common
2936 check_ldflags -Wl,--as-needed
2937 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)/libavutil'
2938 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2939
2940 echo "X{};" > $TMPV
2941 if test_ldflags -Wl,--version-script,$TMPV; then
2942     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2943     check_cc <<EOF && enable symver_asm_label
2944 void ff_foo(void) __asm__ ("av_foo@VERSION");
2945 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2946 EOF
2947     check_cc <<EOF && enable symver_gnu_asm
2948 __asm__(".symver ff_foo,av_foo@VERSION");
2949 void ff_foo(void) {}
2950 EOF
2951 fi
2952
2953 if enabled small; then
2954     add_cflags $size_cflags
2955     optimizations="small"
2956 elif enabled optimizations; then
2957     add_cflags $speed_cflags
2958 else
2959     add_cflags $noopt_cflags
2960 fi
2961 check_cflags -fno-math-errno
2962 check_cflags -fno-signed-zeros
2963
2964 if enabled icc; then
2965     # Just warnings, no remarks
2966     check_cflags -w1
2967     # -wd: Disable following warnings
2968     # 144, 167, 556: -Wno-pointer-sign
2969     # 10006: ignoring unknown option -fno-signed-zeros
2970     # 10148: ignoring unknown option -Wno-parentheses
2971     # 10156: ignoring option '-W'; no argument required
2972     check_cflags -wd144,167,556,10006,10148,10156
2973     # 11030: Warning unknown option --as-needed
2974     # 10156: ignoring option '-export'; no argument required
2975     check_ldflags -wd10156,11030
2976     # Allow to compile with optimizations
2977     check_ldflags -march=$cpu
2978     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2979     enable ebp_available
2980     if enabled x86_32; then
2981         test ${icc_version%%.*} -ge 11 && \
2982             check_cflags -falign-stack=maintain-16-byte || \
2983             disable aligned_stack
2984     fi
2985 elif enabled ccc; then
2986     # disable some annoying warnings
2987     add_cflags -msg_disable cvtu32to64
2988     add_cflags -msg_disable embedcomment
2989     add_cflags -msg_disable needconstext
2990     add_cflags -msg_disable nomainieee
2991     add_cflags -msg_disable ptrmismatch1
2992     add_cflags -msg_disable unreachcode
2993 elif enabled gcc; then
2994     check_cflags -fno-tree-vectorize
2995     check_cflags -Werror=implicit-function-declaration
2996     check_cflags -Werror=missing-prototypes
2997 elif enabled llvm_gcc; then
2998     check_cflags -mllvm -stack-alignment=16
2999 elif enabled clang; then
3000     check_cflags -mllvm -stack-alignment=16
3001     check_cflags -Qunused-arguments
3002 elif enabled armcc; then
3003     # 2523: use of inline assembler is deprecated
3004     add_cflags -W${armcc_opt},--diag_suppress=2523
3005     add_cflags -W${armcc_opt},--diag_suppress=1207
3006     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3007     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3008 elif enabled tms470; then
3009     add_cflags -pds=824 -pds=837
3010 elif enabled pathscale; then
3011     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3012 fi
3013
3014 enabled_any $THREADS_LIST      && enable threads
3015
3016 check_deps $CONFIG_LIST       \
3017            $CONFIG_EXTRA      \
3018            $HAVE_LIST         \
3019            $DECODER_LIST      \
3020            $ENCODER_LIST      \
3021            $HWACCEL_LIST      \
3022            $PARSER_LIST       \
3023            $BSF_LIST          \
3024            $DEMUXER_LIST      \
3025            $MUXER_LIST        \
3026            $FILTER_LIST       \
3027            $INDEV_LIST        \
3028            $OUTDEV_LIST       \
3029            $PROTOCOL_LIST     \
3030            $ACODEC_TESTS      \
3031            $VCODEC_TESTS      \
3032            $LAVF_TESTS        \
3033            $LAVFI_TESTS       \
3034            $SEEK_TESTS        \
3035
3036 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3037
3038 echo "install prefix            $prefix"
3039 echo "source path               $source_path"
3040 echo "C compiler                $cc"
3041 echo "ARCH                      $arch ($cpu)"
3042 if test "$build_suffix" != ""; then
3043     echo "build suffix              $build_suffix"
3044 fi
3045 if test "$extra_version" != ""; then
3046     echo "version string suffix     $extra_version"
3047 fi
3048 echo "big-endian                ${bigendian-no}"
3049 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3050 if enabled x86; then
3051     echo "yasm                      ${yasm-no}"
3052     echo "MMX enabled               ${mmx-no}"
3053     echo "MMX2 enabled              ${mmx2-no}"
3054     echo "3DNow! enabled            ${amd3dnow-no}"
3055     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3056     echo "SSE enabled               ${sse-no}"
3057     echo "SSSE3 enabled             ${ssse3-no}"
3058     echo "CMOV enabled              ${cmov-no}"
3059     echo "CMOV is fast              ${fast_cmov-no}"
3060     echo "EBX available             ${ebx_available-no}"
3061     echo "EBP available             ${ebp_available-no}"
3062     echo "10 operands supported     ${ten_operands-no}"
3063 fi
3064 if enabled arm; then
3065     echo "ARMv5TE enabled           ${armv5te-no}"
3066     echo "ARMv6 enabled             ${armv6-no}"
3067     echo "ARMv6T2 enabled           ${armv6t2-no}"
3068     echo "ARM VFP enabled           ${armvfp-no}"
3069     echo "IWMMXT enabled            ${iwmmxt-no}"
3070     echo "NEON enabled              ${neon-no}"
3071 fi
3072 if enabled mips; then
3073     echo "MMI enabled               ${mmi-no}"
3074 fi
3075 if enabled ppc; then
3076     echo "AltiVec enabled           ${altivec-no}"
3077     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3078     echo "dcbzl available           ${dcbzl-no}"
3079 fi
3080 if enabled sparc; then
3081     echo "VIS enabled               ${vis-no}"
3082 fi
3083 echo "debug symbols             ${debug-no}"
3084 echo "strip symbols             ${stripping-no}"
3085 echo "optimizations             ${optimizations-no}"
3086 echo "static                    ${static-no}"
3087 echo "shared                    ${shared-no}"
3088 echo "postprocessing support    ${postproc-no}"
3089 echo "new filter support        ${avfilter-no}"
3090 echo "network support           ${network-no}"
3091 echo "threading support         ${thread_type-no}"
3092 echo "SDL support               ${sdl-no}"
3093 echo "Sun medialib support      ${mlib-no}"
3094 echo "AVISynth enabled          ${avisynth-no}"
3095 echo "frei0r enabled            ${frei0r-no}"
3096 echo "libdc1394 support         ${libdc1394-no}"
3097 echo "libdirac enabled          ${libdirac-no}"
3098 echo "libfaac enabled           ${libfaac-no}"
3099 echo "libgsm enabled            ${libgsm-no}"
3100 echo "libmp3lame enabled        ${libmp3lame-no}"
3101 echo "libnut enabled            ${libnut-no}"
3102 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3103 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3104 echo "libopencv support         ${libopencv-no}"
3105 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3106 echo "librtmp enabled           ${librtmp-no}"
3107 echo "libschroedinger enabled   ${libschroedinger-no}"
3108 echo "libspeex enabled          ${libspeex-no}"
3109 echo "libtheora enabled         ${libtheora-no}"
3110 echo "libvorbis enabled         ${libvorbis-no}"
3111 echo "libvpx enabled            ${libvpx-no}"
3112 echo "libx264 enabled           ${libx264-no}"
3113 echo "libxavs enabled           ${libxavs-no}"
3114 echo "libxvid enabled           ${libxvid-no}"
3115 echo "zlib enabled              ${zlib-no}"
3116 echo "bzlib enabled             ${bzlib-no}"
3117 echo
3118
3119 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3120     echo "Enabled ${type}s:"
3121     eval list=\$$(toupper $type)_LIST
3122     print_enabled '_*' $list | sort | pr -3 -t
3123     echo
3124 done
3125
3126 license="LGPL version 2.1 or later"
3127 if enabled nonfree; then
3128     license="nonfree and unredistributable"
3129 elif enabled gplv3; then
3130     license="GPL version 3 or later"
3131 elif enabled lgplv3; then
3132     license="LGPL version 3 or later"
3133 elif enabled gpl; then
3134     license="GPL version 2 or later"
3135 fi
3136
3137 echo "License: $license"
3138
3139 echo "Creating config.mak and config.h..."
3140
3141 # build tree in object directory if source path is different from current one
3142 if enabled source_path_used; then
3143     DIRS="
3144         doc
3145         libavcodec
3146         libavcodec/$arch
3147         libavdevice
3148         libavfilter
3149         libavfilter/$arch
3150         libavformat
3151         libavutil
3152         libavutil/$arch
3153         libpostproc
3154         libswscale
3155         libswscale/$arch
3156         tests
3157         tools
3158     "
3159     FILES="
3160         Makefile
3161         common.mak
3162         subdir.mak
3163         doc/texi2pod.pl
3164         libavcodec/Makefile
3165         libavcodec/${arch}/Makefile
3166         libavdevice/Makefile
3167         libavfilter/Makefile
3168         libavfilter/${arch}/Makefile
3169         libavformat/Makefile
3170         libavutil/Makefile
3171         libpostproc/Makefile
3172         libswscale/Makefile
3173     "
3174     map 'mkdir -p $v' $DIRS;
3175     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3176 fi
3177
3178 enabled stripping || strip="echo skipping strip"
3179
3180 config_files="$TMPH config.mak"
3181
3182 cat > config.mak <<EOF
3183 # Automatically generated by configure - do not modify!
3184 ifndef FFMPEG_CONFIG_MAK
3185 FFMPEG_CONFIG_MAK=1
3186 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3187 prefix=$prefix
3188 LIBDIR=\$(DESTDIR)$libdir
3189 SHLIBDIR=\$(DESTDIR)$shlibdir
3190 INCDIR=\$(DESTDIR)$incdir
3191 BINDIR=\$(DESTDIR)$bindir
3192 DATADIR=\$(DESTDIR)$datadir
3193 MANDIR=\$(DESTDIR)$mandir
3194 SRC_PATH="$source_path"
3195 SRC_PATH_BARE=$source_path
3196 BUILD_ROOT="$PWD"
3197 CC_IDENT=$cc_ident
3198 ARCH=$arch
3199 CC=$cc
3200 AS=$as
3201 LD=$ld
3202 DEPCC=$dep_cc
3203 YASM=$yasmexe
3204 YASMDEP=$yasmexe
3205 AR=$ar
3206 RANLIB=$ranlib
3207 CP=cp -p
3208 LN_S=$ln_s
3209 STRIP=$strip
3210 CPPFLAGS=$CPPFLAGS
3211 CFLAGS=$CFLAGS
3212 ASFLAGS=$ASFLAGS
3213 CC_O=$CC_O
3214 LDFLAGS=$LDFLAGS
3215 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3216 SHFLAGS=$SHFLAGS
3217 YASMFLAGS=$YASMFLAGS
3218 BUILDSUF=$build_suffix
3219 FULLNAME=$FULLNAME
3220 LIBPREF=$LIBPREF
3221 LIBSUF=$LIBSUF
3222 LIBNAME=$LIBNAME
3223 SLIBPREF=$SLIBPREF
3224 SLIBSUF=$SLIBSUF
3225 EXESUF=$EXESUF
3226 EXTRA_VERSION=$extra_version
3227 DEPFLAGS=$DEPFLAGS
3228 CCDEP=$CCDEP
3229 ASDEP=$ASDEP
3230 CC_DEPFLAGS=$CC_DEPFLAGS
3231 AS_DEPFLAGS=$AS_DEPFLAGS
3232 HOSTCC=$host_cc
3233 HOSTCFLAGS=$host_cflags
3234 HOSTEXESUF=$HOSTEXESUF
3235 HOSTLDFLAGS=$host_ldflags
3236 HOSTLIBS=$host_libs
3237 TARGET_EXEC=$target_exec
3238 TARGET_PATH=$target_path
3239 SDL_LIBS=$sdl_libs
3240 SDL_CFLAGS=$sdl_cflags
3241 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3242 EXTRALIBS=$extralibs
3243 INSTALL=install
3244 LIBTARGET=${LIBTARGET}
3245 SLIBNAME=${SLIBNAME}
3246 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3247 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3248 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3249 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3250 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3251 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3252 SAMPLES=$samples
3253 EOF
3254
3255 get_version(){
3256     name=$1
3257     file=$source_path/$2
3258     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3259     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3260     lcname=$(tolower $name)
3261     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3262     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3263 }
3264
3265 get_version LIBSWSCALE  libswscale/swscale.h
3266 get_version LIBPOSTPROC libpostproc/postprocess.h
3267 get_version LIBAVCODEC  libavcodec/avcodec.h
3268 get_version LIBAVDEVICE libavdevice/avdevice.h
3269 get_version LIBAVFORMAT libavformat/version.h
3270 get_version LIBAVUTIL   libavutil/avutil.h
3271 get_version LIBAVFILTER libavfilter/avfilter.h
3272
3273 cat > $TMPH <<EOF
3274 /* Automatically generated by configure - do not modify! */
3275 #ifndef FFMPEG_CONFIG_H
3276 #define FFMPEG_CONFIG_H
3277 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3278 #define FFMPEG_LICENSE "$(c_escape $license)"
3279 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3280 #define CC_TYPE "$cc_type"
3281 #define CC_VERSION $cc_version
3282 #define restrict $_restrict
3283 #define EXTERN_PREFIX "${extern_prefix}"
3284 #define EXTERN_ASM ${extern_prefix}
3285 #define SLIBSUF "$SLIBSUF"
3286 EOF
3287
3288 test -n "$malloc_prefix" &&
3289     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3290
3291 if enabled small || disabled optimizations; then
3292     echo "#undef  av_always_inline"  >> $TMPH
3293     if enabled small; then
3294         echo "#define av_always_inline inline"  >> $TMPH
3295     else
3296         echo "#define av_always_inline av_unused"  >> $TMPH
3297     fi
3298 fi
3299
3300 if enabled yasm; then
3301     append config_files $TMPASM
3302     printf '' >$TMPASM
3303 fi
3304
3305 print_config ARCH_   "$config_files" $ARCH_LIST
3306 print_config HAVE_   "$config_files" $HAVE_LIST
3307 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3308                                      $CONFIG_EXTRA      \
3309                                      $DECODER_LIST      \
3310                                      $ENCODER_LIST      \
3311                                      $HWACCEL_LIST      \
3312                                      $PARSER_LIST       \
3313                                      $BSF_LIST          \
3314                                      $DEMUXER_LIST      \
3315                                      $MUXER_LIST        \
3316                                      $FILTER_LIST       \
3317                                      $PROTOCOL_LIST     \
3318                                      $INDEV_LIST        \
3319                                      $OUTDEV_LIST       \
3320
3321 cat >>config.mak <<EOF
3322 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3323 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3324 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3325 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3326 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3327 EOF
3328
3329 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3330 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3331
3332 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3333 cp_if_changed $TMPH config.h
3334 touch .config
3335
3336 enabled yasm && cp_if_changed $TMPASM config.asm
3337
3338 cat > $TMPH <<EOF
3339 /* Generated by ffconf */
3340 #ifndef AVUTIL_AVCONFIG_H
3341 #define AVUTIL_AVCONFIG_H
3342 EOF
3343
3344 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3345
3346 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3347
3348 cp_if_changed $TMPH libavutil/avconfig.h
3349
3350 test -n "$WARNINGS" && printf "\n$WARNINGS"
3351
3352 # build pkg-config files
3353
3354 pkgconfig_generate(){
3355 name=$1
3356 shortname=${name#lib}${build_suffix}
3357 comment=$2
3358 version=$3
3359 libs=$4
3360 requires=$5
3361 enabled ${name#lib} || return 0
3362 cat <<EOF > $name/$name.pc
3363 prefix=$prefix
3364 exec_prefix=\${prefix}
3365 libdir=$libdir
3366 includedir=$incdir
3367
3368 Name: $name
3369 Description: $comment
3370 Version: $version
3371 Requires: $(enabled shared || echo $requires)
3372 Requires.private: $(enabled shared && echo $requires)
3373 Conflicts:
3374 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3375 Libs.private: $(enabled shared && echo $libs)
3376 Cflags: -I\${includedir}
3377 EOF
3378 cat <<EOF > $name/$name-uninstalled.pc
3379 prefix=
3380 exec_prefix=
3381 libdir=\${pcfiledir}
3382 includedir=${source_path}
3383
3384 Name: $name
3385 Description: $comment
3386 Version: $version
3387 Requires: $requires
3388 Conflicts:
3389 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3390 Cflags: -I\${includedir}
3391 EOF
3392 }
3393
3394 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3395 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3396 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3397 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3398 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3399 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3400 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"