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 mp_filter_deps="gpl"
1432 scale_filter_deps="swscale"
1433 ocv_filter_deps="libopencv"
1434 yadif_filter_deps="gpl"
1435
1436 # libraries
1437 avdevice_deps="avcodec avformat"
1438 avformat_deps="avcodec"
1439
1440 # programs
1441 ffmpeg_deps="avcodec avformat swscale"
1442 ffmpeg_select="buffer_filter"
1443 ffplay_deps="avcodec avformat swscale sdl"
1444 ffplay_select="rdft"
1445 ffprobe_deps="avcodec avformat"
1446 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1447 ffserver_extralibs='$ldl'
1448
1449 doc_deps="texi2html"
1450
1451 # tests
1452
1453 test_deps(){
1454     suf1=$1
1455     suf2=$2
1456     shift 2
1457     for v; do
1458         dep=${v%=*}
1459         tests=${v#*=}
1460         for name in ${tests}; do
1461             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1462         done
1463     done
1464 }
1465
1466 set_ne_test_deps(){
1467     eval ${1}_be_test_deps="bigendian"
1468     eval ${1}_le_test_deps="!bigendian"
1469 }
1470
1471 test_deps _encoder _decoder                                             \
1472     adpcm_g726=g726                                                     \
1473     adpcm_ima_qt                                                        \
1474     adpcm_ima_wav                                                       \
1475     adpcm_ms                                                            \
1476     adpcm_swf                                                           \
1477     adpcm_yamaha=adpcm_yam                                              \
1478     alac                                                                \
1479     asv1                                                                \
1480     asv2                                                                \
1481     bmp                                                                 \
1482     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1483     dvvideo="dv dv50"                                                   \
1484     ffv1                                                                \
1485     flac                                                                \
1486     flashsv                                                             \
1487     flv                                                                 \
1488     gif                                                                 \
1489     h261                                                                \
1490     h263="h263 h263p"                                                   \
1491     huffyuv                                                             \
1492     jpegls                                                              \
1493     mjpeg="jpg mjpeg ljpeg"                                             \
1494     mp2                                                                 \
1495     mpeg1video="mpeg mpeg1b"                                            \
1496     mpeg2video="mpeg2 mpeg2thread"                                      \
1497     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1498     msmpeg4v3=msmpeg4                                                   \
1499     msmpeg4v2                                                           \
1500     pbm=pbmpipe                                                         \
1501     pcx                                                                 \
1502     pgm="pgm pgmpipe"                                                   \
1503     png                                                                 \
1504     ppm="ppm ppmpipe"                                                   \
1505     rawvideo="rgb yuv"                                                  \
1506     roq                                                                 \
1507     rv10                                                                \
1508     rv20                                                                \
1509     sgi                                                                 \
1510     snow="snow snowll"                                                  \
1511     svq1                                                                \
1512     targa=tga                                                           \
1513     tiff                                                                \
1514     wmav1                                                               \
1515     wmav2                                                               \
1516     wmv1                                                                \
1517     wmv2                                                                \
1518
1519 test_deps _muxer _demuxer                                               \
1520     aiff                                                                \
1521     pcm_alaw=alaw                                                       \
1522     asf                                                                 \
1523     au                                                                  \
1524     avi                                                                 \
1525     dv=dv_fmt                                                           \
1526     ffm                                                                 \
1527     flv=flv_fmt                                                         \
1528     gxf                                                                 \
1529     matroska=mkv                                                        \
1530     mmf                                                                 \
1531     mov                                                                 \
1532     pcm_mulaw=mulaw                                                     \
1533     mxf                                                                 \
1534     nut                                                                 \
1535     ogg                                                                 \
1536     rawvideo=pixfmt                                                     \
1537     rm                                                                  \
1538     swf                                                                 \
1539     mpegts=ts                                                           \
1540     voc                                                                 \
1541     wav                                                                 \
1542     yuv4mpegpipe=yuv4mpeg                                               \
1543
1544 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1545 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1546
1547 set_ne_test_deps pixdesc
1548 set_ne_test_deps pixfmts_copy
1549 set_ne_test_deps pixfmts_crop
1550 set_ne_test_deps pixfmts_hflip
1551 set_ne_test_deps pixfmts_null
1552 set_ne_test_deps pixfmts_pad
1553 set_ne_test_deps pixfmts_scale
1554 set_ne_test_deps pixfmts_vflip
1555
1556 # default parameters
1557
1558 logfile="config.log"
1559
1560 # installation paths
1561 prefix_default="/usr/local"
1562 bindir_default='${prefix}/bin'
1563 datadir_default='${prefix}/share/ffmpeg'
1564 incdir_default='${prefix}/include'
1565 libdir_default='${prefix}/lib'
1566 mandir_default='${prefix}/share/man'
1567 shlibdir_default="$libdir_default"
1568
1569 # toolchain
1570 ar_default="ar"
1571 cc_default="gcc"
1572 cc_version=\"unknown\"
1573 host_cc_default="gcc"
1574 ln_s="ln -sf"
1575 nm_default="nm"
1576 objformat="elf"
1577 ranlib="ranlib"
1578 strip_default="strip"
1579 yasmexe="yasm"
1580 nogas=":"
1581
1582 nm_opts='-g'
1583
1584 # machine
1585 arch_default=$(uname -m)
1586 cpu="generic"
1587
1588 # OS
1589 target_os_default=$(tolower $(uname -s))
1590 host_os=$target_os_default
1591
1592 # configurable options
1593 enable avcodec
1594 enable avdevice
1595 enable avfilter
1596 enable avformat
1597 enable avutil
1598 enable asm
1599 enable debug
1600 enable doc
1601 enable fastdiv
1602 enable ffmpeg
1603 enable ffplay
1604 enable ffprobe
1605 enable ffserver
1606 enable mpegaudio_hp
1607 enable network
1608 enable optimizations
1609 enable protocols
1610 enable static
1611 enable stripping
1612 enable swscale
1613 enable swscale_alpha
1614
1615 # build settings
1616 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1617 FFSERVERLDFLAGS=-Wl,-E
1618 LIBPREF="lib"
1619 LIBSUF=".a"
1620 FULLNAME='$(NAME)$(BUILDSUF)'
1621 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1622 SLIBPREF="lib"
1623 SLIBSUF=".so"
1624 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1625 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1626 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1627 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1628
1629 CC_O='-o $@'
1630
1631 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1632 host_libs='-lm'
1633
1634 target_path='$(CURDIR)'
1635
1636 # since the object filename is not given with the -MM flag, the compiler
1637 # is only able to print the basename, and we must add the path ourselves
1638 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1639 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1640
1641 # find source path
1642 source_path="$(dirname "$0")"
1643 enable source_path_used
1644 if test -f configure; then
1645     source_path="$(pwd)"
1646     disable source_path_used
1647 else
1648     source_path="$(cd "$source_path"; pwd)"
1649     echo "$source_path" | grep -q '[[:blank:]]' &&
1650         die "Out of tree builds are impossible with whitespace in source path."
1651     test -e "$source_path/config.h" &&
1652         die "Out of tree builds are impossible with config.h in source dir."
1653 fi
1654
1655 for v in "$@"; do
1656     r=${v#*=}
1657     l=${v%"$r"}
1658     r=$(sh_quote "$r")
1659     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1660 done
1661
1662 find_things(){
1663     thing=$1
1664     pattern=$2
1665     file=$source_path/$3
1666     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1667 }
1668
1669 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1670 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1671 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1672 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1673 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1674 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1675 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1676 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1677 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1678 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1679 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1680
1681 find_tests(){
1682     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1683 }
1684
1685 ACODEC_TESTS=$(find_tests acodec)
1686 VCODEC_TESTS=$(find_tests vsynth1)
1687 LAVF_TESTS=$(find_tests lavf)
1688 LAVFI_TESTS=$(find_tests lavfi)
1689 SEEK_TESTS=$(find_tests seek seek_)
1690
1691 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1692
1693 for n in $COMPONENT_LIST; do
1694     v=$(toupper ${n%s})_LIST
1695     eval enable \$$v
1696     eval ${n}_if_any="\$$v"
1697 done
1698
1699 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1700
1701 die_unknown(){
1702     echo "Unknown option \"$1\"."
1703     echo "See $0 --help for available options."
1704     exit 1
1705 }
1706
1707 show_list() {
1708     suffix=_$1
1709     shift
1710     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1711     exit 0
1712 }
1713
1714 for opt do
1715     optval="${opt#*=}"
1716     case "$opt" in
1717     --extra-ldflags=*) add_ldflags $optval
1718     ;;
1719     --extra-libs=*) add_extralibs $optval
1720     ;;
1721     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1722     ;;
1723     --enable-debug=*) debuglevel="$optval"
1724     ;;
1725     --disable-everything)
1726     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1727     ;;
1728     --enable-*=*|--disable-*=*)
1729     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1730     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1731     eval list=\$$(toupper $thing)_LIST
1732     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1733     $action $(filter "$name" $list)
1734     ;;
1735     --enable-?*|--disable-?*)
1736     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1737     if is_in $option $COMPONENT_LIST; then
1738         test $action = disable && action=unset
1739         eval $action \$$(toupper ${option%s})_LIST
1740     elif is_in $option $CMDLINE_SELECT; then
1741         $action $option
1742     else
1743         die_unknown $opt
1744     fi
1745     ;;
1746     --list-*)
1747         NAME="${opt#--list-}"
1748         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1749         NAME=${NAME%s}
1750         eval show_list $NAME \$$(toupper $NAME)_LIST
1751     ;;
1752     --help|-h) show_help
1753     ;;
1754     *)
1755     optname="${opt%%=*}"
1756     optname="${optname#--}"
1757     optname=$(echo "$optname" | sed 's/-/_/g')
1758     if is_in $optname $CMDLINE_SET; then
1759         eval $optname='$optval'
1760     elif is_in $optname $CMDLINE_APPEND; then
1761         append $optname "$optval"
1762     else
1763          die_unknown $opt
1764     fi
1765     ;;
1766     esac
1767 done
1768
1769 disabled logging && logfile=/dev/null
1770
1771 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1772 set >> $logfile
1773
1774 test -n "$cross_prefix" && enable cross_compile
1775
1776 if enabled cross_compile; then
1777     test -n "$arch" && test -n "$target_os" ||
1778         die "Must specify target arch and OS when cross-compiling"
1779 fi
1780
1781 set_default arch target_os
1782
1783 ar_default="${cross_prefix}${ar_default}"
1784 cc_default="${cross_prefix}${cc_default}"
1785 nm_default="${cross_prefix}${nm_default}"
1786 ranlib="${cross_prefix}${ranlib}"
1787 strip_default="${cross_prefix}${strip_default}"
1788
1789 sysinclude_default="${sysroot}/usr/include"
1790
1791 set_default cc nm strip sysinclude
1792 enabled cross_compile || host_cc_default=$cc
1793 set_default host_cc
1794
1795 exesuf() {
1796     case $1 in
1797         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1798     esac
1799 }
1800
1801 EXESUF=$(exesuf $target_os)
1802 HOSTEXESUF=$(exesuf $host_os)
1803
1804 # set temporary file name
1805 : ${TMPDIR:=$TEMPDIR}
1806 : ${TMPDIR:=$TMP}
1807 : ${TMPDIR:=/tmp}
1808
1809 if ! check_cmd mktemp -u XXXXXX; then
1810     # simple replacement for missing mktemp
1811     # NOT SAFE FOR GENERAL USE
1812     mktemp(){
1813         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1814     }
1815 fi
1816
1817 tmpfile(){
1818     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1819         (set -C; exec > $tmp) 2>/dev/null ||
1820         die "Unable to create temporary file in $TMPDIR."
1821     append TMPFILES $tmp
1822     eval $1=$tmp
1823 }
1824
1825 trap 'rm -f -- $TMPFILES' EXIT
1826
1827 tmpfile TMPC  .c
1828 tmpfile TMPE  $EXESUF
1829 tmpfile TMPH  .h
1830 tmpfile TMPO  .o
1831 tmpfile TMPS  .S
1832 tmpfile TMPV  .ver
1833 tmpfile TMPSH .sh
1834 tmpfile TMPASM .asm
1835
1836 unset -f mktemp
1837
1838 chmod +x $TMPE
1839
1840 # make sure we can execute files in $TMPDIR
1841 cat > $TMPSH 2>> $logfile <<EOF
1842 #! /bin/sh
1843 EOF
1844 chmod +x $TMPSH >> $logfile 2>&1
1845 if ! $TMPSH >> $logfile 2>&1; then
1846     cat <<EOF
1847 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1848 variable to another directory and make sure that it is not mounted noexec.
1849 EOF
1850     die "Sanity test failed."
1851 fi
1852
1853 filter_cflags=echo
1854 filter_cppflags=echo
1855 filter_asflags=echo
1856
1857 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1858     cc_type=llvm_gcc
1859     cc_version=__VERSION__
1860     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1861     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1862     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1863     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1864     speed_cflags='-O3'
1865     size_cflags='-Os'
1866 elif $cc -v 2>&1 | grep -qi ^gcc; then
1867     cc_type=gcc
1868     cc_version=__VERSION__
1869     gcc_version=$($cc --version | head -n1)
1870     gcc_basever=$($cc -dumpversion)
1871     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1872     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1873     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1874     if ! $cc -dumpversion | grep -q '^2\.'; then
1875         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1876         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1877     fi
1878     speed_cflags='-O3'
1879     size_cflags='-Os'
1880 elif $cc --version 2>/dev/null | grep -q Intel; then
1881     cc_type=icc
1882     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1883     cc_ident=$($cc --version | head -n1)
1884     icc_version=$($cc -dumpversion)
1885     CC_DEPFLAGS='-MMD'
1886     AS_DEPFLAGS='-MMD'
1887     speed_cflags='-O3'
1888     size_cflags='-Os'
1889     noopt_cflags='-O1'
1890 elif $cc -v 2>&1 | grep -q xlc; then
1891     cc_type=xlc
1892     cc_version="AV_STRINGIFY(__IBMC__)"
1893     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1894     speed_cflags='-O5'
1895     size_cflags='-O5 -qcompact'
1896 elif $cc -V 2>/dev/null | grep -q Compaq; then
1897     cc_type=ccc
1898     cc_version="AV_STRINGIFY(__DECC_VER)"
1899     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1900     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1901     debuglevel=3
1902     add_ldflags -Wl,-z,now # calls to libots crash without this
1903     speed_cflags='-fast'
1904     size_cflags='-O1'
1905 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1906     test -d "$sysroot" || die "No valid sysroot specified."
1907     cc_type=armcc
1908     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1909     cc_ident=$($cc --vsn | head -n1)
1910     armcc_conf="$PWD/armcc.conf"
1911     $cc --arm_linux_configure                 \
1912         --arm_linux_config_file="$armcc_conf" \
1913         --configure_sysroot="$sysroot"        \
1914         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1915         die "Error creating armcc configuration file."
1916     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1917     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1918     as_default="${cross_prefix}gcc"
1919     CC_DEPFLAGS='-MMD'
1920     AS_DEPFLAGS='-MMD'
1921     speed_cflags='-O3'
1922     size_cflags='-Os'
1923     filter_asflags="filter_out -W${armcc_opt}*"
1924 elif $cc -version 2>/dev/null | grep -q TMS470; then
1925     cc_type=tms470
1926     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1927     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1928     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1929     CC_O='-fr=$(@D)'
1930     as_default="${cross_prefix}gcc"
1931     ld_default="${cross_prefix}gcc"
1932     TMPO=$(basename $TMPC .c).o
1933     append TMPFILES $TMPO
1934     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1935     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1936     AS_DEPFLAGS='-MMD'
1937     speed_cflags='-O3 -mf=5'
1938     size_cflags='-O3 -mf=2'
1939     filter_cflags=tms470_flags
1940     tms470_flags(){
1941         for flag; do
1942             case $flag in
1943                 -march=*|-mcpu=*)
1944                     case "${flag#*=}" in
1945                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1946                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1947                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1948                         armv6*|arm11*)          echo -mv=6   ;;
1949                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1950                                                 echo -mv=5e  ;;
1951                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1952                     esac
1953                     ;;
1954                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1955                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1956                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1957                 -msoft-float)   echo --float_support=vfplib       ;;
1958                 -O[0-3]|-mf=*)  echo $flag                        ;;
1959                 -g)             echo -g -mn                       ;;
1960                 -pds=*)         echo $flag                        ;;
1961             esac
1962         done
1963     }
1964 elif $cc -v 2>&1 | grep -q clang; then
1965     cc_type=clang
1966     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1967         cc_version=__clang_version__ || cc_version=__VERSION__
1968     cc_ident=$($cc --version | head -n1)
1969     CC_DEPFLAGS='-MMD'
1970     AS_DEPFLAGS='-MMD'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973 elif $cc -V 2>&1 | grep -q Sun; then
1974     cc_type=suncc
1975     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1976     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1977     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1978     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1979     speed_cflags='-O5'
1980     size_cflags='-O5 -xspace'
1981     filter_cflags=suncc_flags
1982     suncc_flags(){
1983         for flag; do
1984             case $flag in
1985                 -march=*|-mcpu=*)
1986                     case "${flag#*=}" in
1987                         native)                   echo -xtarget=native       ;;
1988                         v9|niagara)               echo -xarch=sparc          ;;
1989                         ultrasparc)               echo -xarch=sparcvis       ;;
1990                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1991                         i586|pentium)             echo -xchip=pentium        ;;
1992                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1993                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1994                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1995                         pentium4*)          echo -xtarget=pentium4           ;;
1996                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1997                         *-sse3)             echo -xarch=sse3                 ;;
1998                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1999                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2000                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2001                         k8|opteron|athlon64|athlon-fx)
2002                                                   echo -xarch=sse2a          ;;
2003                         athlon*)                  echo -xarch=pentium_proa   ;;
2004                     esac
2005                     ;;
2006                 -std=c99)             echo -xc99              ;;
2007                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2008                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2009                 -W*,*)                echo $flag              ;;
2010                 -f*-*|-W*)                                    ;;
2011                 *)                    echo $flag              ;;
2012             esac
2013         done
2014     }
2015 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2016     cc_type=pathscale
2017     cc_version=__PATHSCALE__
2018     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2019     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2020     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2021     speed_cflags='-O2'
2022     size_cflags='-Os'
2023 elif $cc -v 2>&1 | grep -q Open64; then
2024     cc_type=open64
2025     cc_version=__OPEN64__
2026     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2027     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2028     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2029     speed_cflags='-O2'
2030     size_cflags='-Os'
2031 fi
2032
2033 test -n "$cc_type" && enable $cc_type ||
2034     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2035
2036 : ${as_default:=$cc}
2037 : ${dep_cc_default:=$cc}
2038 : ${ld_default:=$cc}
2039 set_default ar as dep_cc ld
2040
2041 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2042 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2043
2044 add_cflags $extra_cflags
2045 add_asflags $extra_cflags
2046
2047 if test -n "$sysroot"; then
2048     case "$cc_type" in
2049         gcc|llvm_gcc)
2050             add_cppflags --sysroot="$sysroot"
2051             add_ldflags --sysroot="$sysroot"
2052         ;;
2053         tms470)
2054             add_cppflags -I"$sysinclude"
2055             add_ldflags  --sysroot="$sysroot"
2056         ;;
2057         clang)
2058             add_cppflags -isysroot "$sysroot"
2059             add_ldflags -isysroot "$sysroot"
2060         ;;
2061     esac
2062 fi
2063
2064 if test "$cpu" = host; then
2065     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2066
2067     case "$cc_type" in
2068         gcc|llvm_gcc)
2069             check_native(){
2070                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2071                 sed -n "/$1=/{
2072                             s/.*$1=\\([^ ]*\\).*/\\1/
2073                             p
2074                             q
2075                         }" $TMPE
2076             }
2077             cpu=$(check_native -march || check_native -mcpu)
2078         ;;
2079     esac
2080
2081     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2082 fi
2083
2084 # Deal with common $arch aliases
2085 case "$arch" in
2086     arm*)
2087         arch="arm"
2088     ;;
2089     mips|mipsel|IP*)
2090         arch="mips"
2091     ;;
2092     mips64*)
2093         arch="mips"
2094         subarch="mips64"
2095     ;;
2096     parisc|hppa)
2097         arch="parisc"
2098     ;;
2099     parisc64|hppa64)
2100         arch="parisc"
2101         subarch="parisc64"
2102     ;;
2103     "Power Macintosh"|ppc|powerpc)
2104         arch="ppc"
2105     ;;
2106     ppc64|powerpc64)
2107         arch="ppc"
2108         subarch="ppc64"
2109     ;;
2110     s390|s390x)
2111         arch="s390"
2112     ;;
2113     sh4|sh)
2114         arch="sh4"
2115     ;;
2116     sun4u|sparc64)
2117         arch="sparc"
2118         subarch="sparc64"
2119     ;;
2120     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2121         arch="x86"
2122     ;;
2123 esac
2124
2125 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2126 enable $arch
2127
2128 # Add processor-specific flags
2129 if test "$cpu" = generic; then
2130     : do nothing
2131 elif enabled ppc; then
2132
2133     case $(tolower $cpu) in
2134         601|ppc601|powerpc601)
2135             cpuflags="-mcpu=601"
2136             disable altivec
2137         ;;
2138         603*|ppc603*|powerpc603*)
2139             cpuflags="-mcpu=603"
2140             disable altivec
2141         ;;
2142         604*|ppc604*|powerpc604*)
2143             cpuflags="-mcpu=604"
2144             disable altivec
2145         ;;
2146         g3|75*|ppc75*|powerpc75*)
2147             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2148             disable altivec
2149         ;;
2150         g4|745*|ppc745*|powerpc745*)
2151             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2152         ;;
2153         74*|ppc74*|powerpc74*)
2154             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2155         ;;
2156         g5|970|ppc970|powerpc970|power4*)
2157             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2158         ;;
2159         cell)
2160             cpuflags="-mcpu=cell"
2161             enable ldbrx
2162         ;;
2163         e500v2)
2164             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2165             disable altivec
2166         ;;
2167         e500)
2168             cpuflags="-mcpu=8540 -mhard-float"
2169             disable altivec
2170         ;;
2171     esac
2172
2173 elif enabled x86; then
2174
2175     case $cpu in
2176         i[345]86|pentium)
2177             cpuflags="-march=$cpu"
2178             disable mmx
2179         ;;
2180         # targets that do NOT support conditional mov (cmov)
2181         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2182             cpuflags="-march=$cpu"
2183             disable cmov
2184         ;;
2185         # targets that do support conditional mov (cmov)
2186         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2187             cpuflags="-march=$cpu"
2188             enable cmov
2189             enable fast_cmov
2190         ;;
2191         # targets that do support conditional mov but on which it's slow
2192         pentium4|pentium4m|prescott|nocona)
2193             cpuflags="-march=$cpu"
2194             enable cmov
2195             disable fast_cmov
2196         ;;
2197     esac
2198
2199 elif enabled sparc; then
2200
2201     case $cpu in
2202         niagara)
2203             cpuflags="-mcpu=$cpu"
2204             disable vis
2205         ;;
2206         sparc64)
2207             cpuflags="-mcpu=v9"
2208         ;;
2209     esac
2210
2211 elif enabled arm; then
2212
2213     case $cpu in
2214         armv*)
2215             cpuflags="-march=$cpu"
2216             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2217         ;;
2218         *)
2219             cpuflags="-mcpu=$cpu"
2220             case $cpu in
2221                 cortex-a*)                               subarch=armv7a  ;;
2222                 cortex-r*)                               subarch=armv7r  ;;
2223                 cortex-m*)                               subarch=armv7m  ;;
2224                 arm11*)                                  subarch=armv6   ;;
2225                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2226                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2227             esac
2228         ;;
2229     esac
2230
2231 elif enabled alpha; then
2232
2233     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2234
2235 elif enabled bfin; then
2236
2237     cpuflags="-mcpu=$cpu"
2238
2239 elif enabled mips; then
2240
2241     cpuflags="-march=$cpu"
2242
2243 elif enabled avr32; then
2244
2245     case $cpu in
2246         ap7[02]0[0-2])
2247             subarch="avr32_ap"
2248             cpuflags="-mpart=$cpu"
2249         ;;
2250         ap)
2251             subarch="avr32_ap"
2252             cpuflags="-march=$cpu"
2253         ;;
2254         uc3[ab]*)
2255             subarch="avr32_uc"
2256             cpuflags="-mcpu=$cpu"
2257         ;;
2258         uc)
2259             subarch="avr32_uc"
2260             cpuflags="-march=$cpu"
2261         ;;
2262     esac
2263
2264 fi
2265
2266 add_cflags $cpuflags
2267 add_asflags $cpuflags
2268
2269 # compiler sanity check
2270 check_exec <<EOF
2271 int main(void){ return 0; }
2272 EOF
2273 if test "$?" != 0; then
2274     echo "$cc is unable to create an executable file."
2275     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2276         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2277         echo "Only do this if you know what cross compiling means."
2278     fi
2279     die "C compiler test failed."
2280 fi
2281
2282 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2283 check_cflags -std=c99
2284 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2285 #include <stdlib.h>
2286 EOF
2287 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2288 #include <stdlib.h>
2289 EOF
2290
2291 check_host_cflags -std=c99
2292
2293 case "$arch" in
2294     alpha|ia64|mips|parisc|sparc)
2295         spic=$shared
2296     ;;
2297     x86)
2298         subarch="x86_32"
2299         check_cc <<EOF && subarch="x86_64"
2300         int test[(int)sizeof(char*) - 7];
2301 EOF
2302         if test "$subarch" = "x86_64"; then
2303             spic=$shared
2304         fi
2305     ;;
2306 esac
2307
2308 enable $subarch
2309 enabled spic && enable pic
2310
2311 # OS specific
2312 case $target_os in
2313     haiku)
2314         prefix_default="/boot/common"
2315         network_extralibs="-lnetwork"
2316         host_libs=
2317         ;;
2318     sunos)
2319         FFSERVERLDFLAGS=""
2320         SHFLAGS='-shared -Wl,-h,$$(@F)'
2321         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2322         network_extralibs="-lsocket -lnsl"
2323         add_cppflags -D__EXTENSIONS__
2324         nm_opts='-P -g'
2325         ;;
2326     netbsd)
2327         disable symver
2328         oss_indev_extralibs="-lossaudio"
2329         oss_outdev_extralibs="-lossaudio"
2330         add_cppflags -D_XOPEN_SOURCE=600
2331         ;;
2332     openbsd)
2333         enable malloc_aligned
2334         # On OpenBSD 4.5. the compiler does not use PIC unless
2335         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2336         # however the generated executable will not do anything
2337         # (simply quits with exit-code 1, no crash, no output).
2338         # Thus explicitly enable PIC here.
2339         enable pic
2340         disable symver
2341         SHFLAGS='-shared'
2342         oss_indev_extralibs="-lossaudio"
2343         oss_outdev_extralibs="-lossaudio"
2344         ;;
2345     dragonfly)
2346         enable malloc_aligned
2347         disable symver
2348         ;;
2349     freebsd)
2350         enable malloc_aligned
2351         ;;
2352     bsd/os)
2353         add_extralibs -lpoll -lgnugetopt
2354         strip="strip -d"
2355         ;;
2356     darwin)
2357         enable malloc_aligned
2358         gas="gas-preprocessor.pl $cc"
2359         enabled ppc && add_asflags -force_cpusubtype_ALL
2360         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2361         strip="${strip} -x"
2362         add_ldflags -Wl,-dynamic,-search_paths_first
2363         SLIBSUF=".dylib"
2364         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2365         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2366         FFSERVERLDFLAGS=-Wl,-bind_at_load
2367         objformat="macho"
2368         enabled x86_64 && objformat="macho64"
2369         enabled_any pic shared ||
2370             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2371         ;;
2372     mingw32*)
2373         if test $target_os = "mingw32ce"; then
2374             disable network
2375         else
2376             target_os=mingw32
2377         fi
2378         LIBTARGET=i386
2379         if enabled x86_64; then
2380             enable malloc_aligned
2381             LIBTARGET=x64
2382         elif enabled arm; then
2383             LIBTARGET=arm
2384         fi
2385         shlibdir_default="$bindir_default"
2386         disable ffserver
2387         SLIBPREF=""
2388         SLIBSUF=".dll"
2389         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2390         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2391         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2392         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2393             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2394             install -d "$(LIBDIR)"; \
2395             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2396         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2397         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'
2398         objformat="win32"
2399         enable dos_paths
2400         check_cflags -fno-common
2401         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2402                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2403                 die "ERROR: MinGW runtime version must be >= 3.15."
2404         ;;
2405     cygwin*)
2406         target_os=cygwin
2407         shlibdir_default="$bindir_default"
2408         SLIBPREF="cyg"
2409         SLIBSUF=".dll"
2410         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2411         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2412         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2413         objformat="win32"
2414         enable dos_paths
2415         check_cflags -fno-common
2416         ;;
2417     *-dos|freedos|opendos)
2418         disable ffplay ffserver
2419         disable $INDEV_LIST $OUTDEV_LIST
2420         network_extralibs="-lsocket"
2421         objformat="coff"
2422         enable dos_paths
2423         ;;
2424     linux)
2425         enable dv1394
2426         ;;
2427     irix*)
2428         target_os=irix
2429         ranlib="echo ignoring ranlib"
2430         ;;
2431     os/2*)
2432         strip="lxlite"
2433         ln_s="cp -f"
2434         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2435         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2436         FFSERVERLDFLAGS=""
2437         LIBSUF="_s.a"
2438         SLIBPREF=""
2439         SLIBSUF=".dll"
2440         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2441         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2442         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2443           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2444           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2445           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2446           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2447           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2448         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2449           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2450         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2451         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2452         enable dos_paths
2453         ;;
2454     gnu/kfreebsd)
2455         ;;
2456     gnu)
2457         ;;
2458     qnx)
2459         add_cppflags -D_QNX_SOURCE
2460         network_extralibs="-lsocket"
2461         ;;
2462     none)
2463         ;;
2464     *)
2465         die "Unknown OS '$target_os'."
2466         ;;
2467 esac
2468
2469 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2470
2471 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2472
2473 set_default $PATHS_LIST
2474
2475 # we need to build at least one lib type
2476 if ! enabled_any static shared; then
2477     cat <<EOF
2478 At least one library type must be built.
2479 Specify --enable-static to build the static libraries or --enable-shared to
2480 build the shared libraries as well. To only build the shared libraries specify
2481 --disable-static in addition to --enable-shared.
2482 EOF
2483     exit 1;
2484 fi
2485
2486 disabled static && LIBNAME=""
2487
2488 die_license_disabled() {
2489     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2490 }
2491
2492 die_license_disabled gpl libx264
2493 die_license_disabled gpl libxavs
2494 die_license_disabled gpl libxvid
2495 die_license_disabled gpl postproc
2496 die_license_disabled gpl x11grab
2497
2498 die_license_disabled nonfree libfaac
2499
2500 die_license_disabled version3 libopencore_amrnb
2501 die_license_disabled version3 libopencore_amrwb
2502
2503 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2504
2505 disabled optimizations || check_cflags -fomit-frame-pointer
2506
2507 enable_pic() {
2508     enable pic
2509     add_cppflags -DPIC
2510     add_cflags   -fPIC
2511     add_asflags  -fPIC
2512 }
2513
2514 enabled pic && enable_pic
2515
2516 check_cc <<EOF || die "Symbol mangling check failed."
2517 int ff_extern;
2518 EOF
2519 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2520 extern_prefix=${sym%%ff_extern*}
2521
2522 check_cc <<EOF && enable inline_asm
2523 void foo(void) { __asm__ volatile ("" ::); }
2524 EOF
2525
2526 _restrict=
2527 for restrict_keyword in restrict __restrict__ __restrict; do
2528     check_cc <<EOF && _restrict=$restrict_keyword && break
2529 void foo(char * $restrict_keyword p);
2530 EOF
2531 done
2532
2533 check_cc <<EOF && enable attribute_packed
2534 struct { int x; } __attribute__((packed)) x;
2535 EOF
2536
2537 check_cc <<EOF && enable attribute_may_alias
2538 union { int x; } __attribute__((may_alias)) x;
2539 EOF
2540
2541 check_cc <<EOF || die "endian test failed"
2542 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2543 EOF
2544 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2545
2546 if enabled alpha; then
2547
2548     check_cflags -mieee
2549
2550 elif enabled arm; then
2551
2552     check_cflags -marm
2553     nogas=die
2554
2555     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2556         enable vfp_args
2557     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2558         case "${cross_prefix:-$cc}" in
2559             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2560             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2561 __asm__ (".eabi_attribute 28, 1");
2562 int main(void) { return 0; }
2563 EOF
2564         esac
2565         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2566     fi
2567
2568     # We have to check if pld is a nop and disable it.
2569     check_asm pld '"pld [r0]"'
2570
2571     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2572     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2573     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2574     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2575     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2576     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2577
2578     enabled_all armv6t2 shared !pic && enable_pic
2579
2580 elif enabled mips; then
2581
2582     check_asm loongson '"dmult.g $1, $2, $3"'
2583     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2584
2585 elif enabled ppc; then
2586
2587     enable local_aligned_8 local_aligned_16
2588
2589     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2590     check_asm ibm_asm   '"add 0, 0, 0"'
2591     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2592     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2593
2594     # AltiVec flags: The FSF version of GCC differs from the Apple version
2595     if enabled altivec; then
2596         nogas=warn
2597         check_cflags -maltivec -mabi=altivec &&
2598         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2599         check_cflags -faltivec
2600
2601         # check if our compiler supports Motorola AltiVec C API
2602         check_cc <<EOF || disable altivec
2603 $inc_altivec_h
2604 int main(void) {
2605     vector signed int v1, v2, v3;
2606     v1 = vec_add(v2,v3);
2607     return 0;
2608 }
2609 EOF
2610
2611         # check if our compiler supports braces for vector declarations
2612         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2613 $inc_altivec_h
2614 int main (void) { (vector int) {1}; return 0; }
2615 EOF
2616     fi
2617
2618 elif enabled sparc; then
2619
2620     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2621         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2622
2623 elif enabled x86; then
2624
2625     enable local_aligned_8 local_aligned_16
2626
2627     # check whether EBP is available on x86
2628     # As 'i' is stored on the stack, this program will crash
2629     # if the base pointer is used to access it because the
2630     # base pointer is cleared in the inline assembly code.
2631     check_exec_crash <<EOF && enable ebp_available
2632     volatile int i=0;
2633     __asm__ volatile (
2634         "xorl %%ebp, %%ebp"
2635     ::: "%ebp");
2636     return i;
2637 EOF
2638
2639     # check whether EBX is available on x86
2640     check_asm ebx_available '""::"b"(0)' &&
2641         check_asm ebx_available '"":::"%ebx"'
2642
2643     # check whether xmm clobbers are supported
2644     check_asm xmm_clobbers '"":::"%xmm0"'
2645
2646     # check whether more than 10 operands are supported
2647     check_cc <<EOF && enable ten_operands
2648 int main(void) {
2649     int x=0;
2650     __asm__ volatile(
2651         ""
2652         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2653     );
2654     return 0;
2655 }
2656 EOF
2657
2658     # check whether binutils is new enough to compile SSSE3/MMX2
2659     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2660     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2661
2662     check_asm bswap '"bswap %%eax" ::: "%eax"'
2663
2664     if ! disabled_any asm mmx yasm; then
2665         if check_cmd $yasmexe --version; then
2666             enabled x86_64 && yasm_extra="-m amd64"
2667             yasm_debug="-g dwarf2"
2668         elif check_cmd nasm -v; then
2669             yasmexe=nasm
2670             yasm_debug="-g -F dwarf"
2671             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2672         fi
2673
2674         YASMFLAGS="-f $objformat $yasm_extra"
2675         enabled pic               && append YASMFLAGS "-DPIC"
2676         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2677         case "$objformat" in
2678             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2679         esac
2680
2681         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2682             die "yasm not found, use --disable-yasm for a crippled build"
2683         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2684     fi
2685
2686     case "$cpu" in
2687         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2688             disable fast_clz
2689         ;;
2690     esac
2691
2692 fi
2693
2694 if enabled asm; then
2695     as=${gas:=$as}
2696     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2697         $nogas "GNU assembler not found, install gas-preprocessor"
2698 fi
2699
2700 if check_func dlopen; then
2701     ldl=
2702 elif check_func dlopen -ldl; then
2703     ldl=-ldl
2704 fi
2705
2706 if enabled network; then
2707     check_type "sys/types.h sys/socket.h" socklen_t
2708     check_type netdb.h "struct addrinfo"
2709     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2710     check_type netinet/in.h "struct sockaddr_in6"
2711     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2712     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2713     # Prefer arpa/inet.h over winsock2
2714     if check_header arpa/inet.h ; then
2715         check_func closesocket
2716     elif check_header winsock2.h ; then
2717         check_func_headers winsock2.h closesocket -lws2 && \
2718             network_extralibs="-lws2" || \
2719         { check_func_headers winsock2.h closesocket -lws2_32 && \
2720             network_extralibs="-lws2_32"; }
2721         check_type ws2tcpip.h socklen_t
2722         check_type ws2tcpip.h "struct addrinfo"
2723         check_type ws2tcpip.h "struct ipv6_mreq"
2724         check_type ws2tcpip.h "struct sockaddr_in6"
2725         check_type ws2tcpip.h "struct sockaddr_storage"
2726         check_struct winsock2.h "struct sockaddr" sa_len
2727     else
2728         disable network
2729     fi
2730 fi
2731
2732 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2733 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2734
2735 check_func  fcntl
2736 check_func  fork
2737 check_func  getaddrinfo $network_extralibs
2738 check_func  gethrtime
2739 check_func  getrusage
2740 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2741 check_func  inet_aton $network_extralibs
2742 check_func  isatty
2743 check_func  ${malloc_prefix}memalign            && enable memalign
2744 check_func  mkstemp
2745 check_func  mmap
2746 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2747 check_func  setrlimit
2748 check_func  strerror_r
2749 check_func  strtok_r
2750 check_func_headers io.h setmode
2751 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2752 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2753 check_func_headers windows.h GetProcessTimes
2754 check_func_headers windows.h MapViewOfFile
2755 check_func_headers windows.h VirtualAlloc
2756
2757 check_header conio.h
2758 check_header dlfcn.h
2759 check_header dxva2api.h
2760 check_header malloc.h
2761 check_header poll.h
2762 check_header sys/mman.h
2763 check_header sys/resource.h
2764 check_header sys/select.h
2765 check_header termios.h
2766 check_header vdpau/vdpau.h
2767 check_header vdpau/vdpau_x11.h
2768 check_header X11/extensions/XvMClib.h
2769
2770 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2771
2772 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2773      enabled_any $need_memalign ; then
2774     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2775 fi
2776
2777 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2778 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2779
2780 # check for some common methods of building with pthread support
2781 # do this before the optional library checks as some of them require pthreads
2782 if ! disabled pthreads && ! enabled w32threads; then
2783     enable pthreads
2784     if check_func pthread_create; then
2785         :
2786     elif check_func pthread_create -pthread; then
2787         add_cflags -pthread
2788         add_extralibs -pthread
2789     elif check_func pthread_create -pthreads; then
2790         add_cflags -pthreads
2791         add_extralibs -pthreads
2792     elif check_func pthread_create -lpthreadGC2; then
2793         add_extralibs -lpthreadGC2
2794     elif ! check_lib pthread.h pthread_create -lpthread; then
2795         disable pthreads
2796     fi
2797 fi
2798
2799 for thread in $THREADS_LIST; do
2800     if enabled $thread; then
2801         test -n "$thread_type" &&
2802             die "ERROR: Only one thread type must be selected." ||
2803             thread_type="$thread"
2804     fi
2805 done
2806
2807 check_lib math.h sin -lm
2808 disabled vaapi || check_lib va/va.h vaInitialize -lva
2809
2810 check_mathfunc exp2
2811 check_mathfunc exp2f
2812 check_mathfunc llrint
2813 check_mathfunc llrintf
2814 check_mathfunc log2
2815 check_mathfunc log2f
2816 check_mathfunc lrint
2817 check_mathfunc lrintf
2818 check_mathfunc round
2819 check_mathfunc roundf
2820 check_mathfunc truncf
2821
2822 # these are off by default, so fail if requested and not available
2823 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2824 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2825 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2826                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2827                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2828 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2829 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2830 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2831 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2832 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2833 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2834 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2835                         die "ERROR: libopencv not found"; }
2836 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2837 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2838                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2839 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2840                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2841 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2842 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2843 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2844 enabled libvpx     && {
2845     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2846                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2847     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2848                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2849 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2850                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2851                         die "ERROR: libx264 version must be >= 0.99."; }
2852 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2853 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2854 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2855
2856 # libdc1394 check
2857 if enabled libdc1394; then
2858     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2859         enable libdc1394_2; } ||
2860     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2861         enable libdc1394_1; } ||
2862     die "ERROR: No version of libdc1394 found "
2863 fi
2864
2865 SDL_CONFIG="${cross_prefix}sdl-config"
2866 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2867     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2868     sdl_libs=$("${SDL_CONFIG}" --libs)
2869     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2870     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2871     enable sdl &&
2872     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2873 fi
2874
2875 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2876
2877 check_header linux/videodev.h
2878 check_header linux/videodev2.h
2879 check_header sys/videoio.h
2880
2881 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2882 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2883 # w32api 3.12 had it defined wrong
2884 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2885
2886 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2887 { check_header dev/bktr/ioctl_meteor.h &&
2888   check_header dev/bktr/ioctl_bt848.h; } ||
2889 { check_header machine/ioctl_meteor.h &&
2890   check_header machine/ioctl_bt848.h; } ||
2891 { check_header dev/video/meteor/ioctl_meteor.h &&
2892   check_header dev/video/bktr/ioctl_bt848.h; } ||
2893 check_header dev/ic/bt8xx.h
2894
2895 check_header sys/soundcard.h
2896 check_header soundcard.h
2897
2898 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2899
2900 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2901
2902 enabled x11grab                         &&
2903 check_header X11/Xlib.h                 &&
2904 check_header X11/extensions/XShm.h      &&
2905 check_header X11/extensions/Xfixes.h    &&
2906 check_func XOpenDisplay -lX11           &&
2907 check_func XShmCreateImage -lX11 -lXext &&
2908 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2909
2910 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2911 check_cpp_condition \
2912     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2913     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2914       disable vdpau; }
2915 fi
2916
2917 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2918
2919 # add some useful compiler flags if supported
2920 check_cflags -Wdeclaration-after-statement
2921 check_cflags -Wall
2922 check_cflags -Wno-parentheses
2923 check_cflags -Wno-switch
2924 check_cflags -Wdisabled-optimization
2925 check_cflags -Wpointer-arith
2926 check_cflags -Wredundant-decls
2927 check_cflags -Wno-pointer-sign
2928 check_cflags -Wcast-qual
2929 check_cflags -Wwrite-strings
2930 check_cflags -Wtype-limits
2931 check_cflags -Wundef
2932 check_cflags -Wmissing-prototypes
2933 enabled extra_warnings && check_cflags -Winline
2934
2935 # add some linker flags
2936 check_ldflags -Wl,--warn-common
2937 check_ldflags -Wl,--as-needed
2938 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'
2939 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2940
2941 echo "X{};" > $TMPV
2942 if test_ldflags -Wl,--version-script,$TMPV; then
2943     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2944     check_cc <<EOF && enable symver_asm_label
2945 void ff_foo(void) __asm__ ("av_foo@VERSION");
2946 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2947 EOF
2948     check_cc <<EOF && enable symver_gnu_asm
2949 __asm__(".symver ff_foo,av_foo@VERSION");
2950 void ff_foo(void) {}
2951 EOF
2952 fi
2953
2954 if enabled small; then
2955     add_cflags $size_cflags
2956     optimizations="small"
2957 elif enabled optimizations; then
2958     add_cflags $speed_cflags
2959 else
2960     add_cflags $noopt_cflags
2961 fi
2962 check_cflags -fno-math-errno
2963 check_cflags -fno-signed-zeros
2964
2965 if enabled icc; then
2966     # Just warnings, no remarks
2967     check_cflags -w1
2968     # -wd: Disable following warnings
2969     # 144, 167, 556: -Wno-pointer-sign
2970     # 10006: ignoring unknown option -fno-signed-zeros
2971     # 10148: ignoring unknown option -Wno-parentheses
2972     # 10156: ignoring option '-W'; no argument required
2973     check_cflags -wd144,167,556,10006,10148,10156
2974     # 11030: Warning unknown option --as-needed
2975     # 10156: ignoring option '-export'; no argument required
2976     check_ldflags -wd10156,11030
2977     # Allow to compile with optimizations
2978     check_ldflags -march=$cpu
2979     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2980     enable ebp_available
2981     if enabled x86_32; then
2982         test ${icc_version%%.*} -ge 11 && \
2983             check_cflags -falign-stack=maintain-16-byte || \
2984             disable aligned_stack
2985     fi
2986 elif enabled ccc; then
2987     # disable some annoying warnings
2988     add_cflags -msg_disable cvtu32to64
2989     add_cflags -msg_disable embedcomment
2990     add_cflags -msg_disable needconstext
2991     add_cflags -msg_disable nomainieee
2992     add_cflags -msg_disable ptrmismatch1
2993     add_cflags -msg_disable unreachcode
2994 elif enabled gcc; then
2995     check_cflags -fno-tree-vectorize
2996     check_cflags -Werror=implicit-function-declaration
2997     check_cflags -Werror=missing-prototypes
2998 elif enabled llvm_gcc; then
2999     check_cflags -mllvm -stack-alignment=16
3000 elif enabled clang; then
3001     check_cflags -mllvm -stack-alignment=16
3002     check_cflags -Qunused-arguments
3003 elif enabled armcc; then
3004     # 2523: use of inline assembler is deprecated
3005     add_cflags -W${armcc_opt},--diag_suppress=2523
3006     add_cflags -W${armcc_opt},--diag_suppress=1207
3007     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3008     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3009 elif enabled tms470; then
3010     add_cflags -pds=824 -pds=837
3011 elif enabled pathscale; then
3012     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3013 fi
3014
3015 enabled_any $THREADS_LIST      && enable threads
3016
3017 check_deps $CONFIG_LIST       \
3018            $CONFIG_EXTRA      \
3019            $HAVE_LIST         \
3020            $DECODER_LIST      \
3021            $ENCODER_LIST      \
3022            $HWACCEL_LIST      \
3023            $PARSER_LIST       \
3024            $BSF_LIST          \
3025            $DEMUXER_LIST      \
3026            $MUXER_LIST        \
3027            $FILTER_LIST       \
3028            $INDEV_LIST        \
3029            $OUTDEV_LIST       \
3030            $PROTOCOL_LIST     \
3031            $ACODEC_TESTS      \
3032            $VCODEC_TESTS      \
3033            $LAVF_TESTS        \
3034            $LAVFI_TESTS       \
3035            $SEEK_TESTS        \
3036
3037 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3038
3039 echo "install prefix            $prefix"
3040 echo "source path               $source_path"
3041 echo "C compiler                $cc"
3042 echo "ARCH                      $arch ($cpu)"
3043 if test "$build_suffix" != ""; then
3044     echo "build suffix              $build_suffix"
3045 fi
3046 if test "$extra_version" != ""; then
3047     echo "version string suffix     $extra_version"
3048 fi
3049 echo "big-endian                ${bigendian-no}"
3050 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3051 if enabled x86; then
3052     echo "yasm                      ${yasm-no}"
3053     echo "MMX enabled               ${mmx-no}"
3054     echo "MMX2 enabled              ${mmx2-no}"
3055     echo "3DNow! enabled            ${amd3dnow-no}"
3056     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3057     echo "SSE enabled               ${sse-no}"
3058     echo "SSSE3 enabled             ${ssse3-no}"
3059     echo "CMOV enabled              ${cmov-no}"
3060     echo "CMOV is fast              ${fast_cmov-no}"
3061     echo "EBX available             ${ebx_available-no}"
3062     echo "EBP available             ${ebp_available-no}"
3063     echo "10 operands supported     ${ten_operands-no}"
3064 fi
3065 if enabled arm; then
3066     echo "ARMv5TE enabled           ${armv5te-no}"
3067     echo "ARMv6 enabled             ${armv6-no}"
3068     echo "ARMv6T2 enabled           ${armv6t2-no}"
3069     echo "ARM VFP enabled           ${armvfp-no}"
3070     echo "IWMMXT enabled            ${iwmmxt-no}"
3071     echo "NEON enabled              ${neon-no}"
3072 fi
3073 if enabled mips; then
3074     echo "MMI enabled               ${mmi-no}"
3075 fi
3076 if enabled ppc; then
3077     echo "AltiVec enabled           ${altivec-no}"
3078     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3079     echo "dcbzl available           ${dcbzl-no}"
3080 fi
3081 if enabled sparc; then
3082     echo "VIS enabled               ${vis-no}"
3083 fi
3084 echo "debug symbols             ${debug-no}"
3085 echo "strip symbols             ${stripping-no}"
3086 echo "optimizations             ${optimizations-no}"
3087 echo "static                    ${static-no}"
3088 echo "shared                    ${shared-no}"
3089 echo "postprocessing support    ${postproc-no}"
3090 echo "new filter support        ${avfilter-no}"
3091 echo "network support           ${network-no}"
3092 echo "threading support         ${thread_type-no}"
3093 echo "SDL support               ${sdl-no}"
3094 echo "Sun medialib support      ${mlib-no}"
3095 echo "AVISynth enabled          ${avisynth-no}"
3096 echo "frei0r enabled            ${frei0r-no}"
3097 echo "libdc1394 support         ${libdc1394-no}"
3098 echo "libdirac enabled          ${libdirac-no}"
3099 echo "libfaac enabled           ${libfaac-no}"
3100 echo "libgsm enabled            ${libgsm-no}"
3101 echo "libmp3lame enabled        ${libmp3lame-no}"
3102 echo "libnut enabled            ${libnut-no}"
3103 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3104 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3105 echo "libopencv support         ${libopencv-no}"
3106 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3107 echo "librtmp enabled           ${librtmp-no}"
3108 echo "libschroedinger enabled   ${libschroedinger-no}"
3109 echo "libspeex enabled          ${libspeex-no}"
3110 echo "libtheora enabled         ${libtheora-no}"
3111 echo "libvorbis enabled         ${libvorbis-no}"
3112 echo "libvpx enabled            ${libvpx-no}"
3113 echo "libx264 enabled           ${libx264-no}"
3114 echo "libxavs enabled           ${libxavs-no}"
3115 echo "libxvid enabled           ${libxvid-no}"
3116 echo "zlib enabled              ${zlib-no}"
3117 echo "bzlib enabled             ${bzlib-no}"
3118 echo
3119
3120 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3121     echo "Enabled ${type}s:"
3122     eval list=\$$(toupper $type)_LIST
3123     print_enabled '_*' $list | sort | pr -3 -t
3124     echo
3125 done
3126
3127 license="LGPL version 2.1 or later"
3128 if enabled nonfree; then
3129     license="nonfree and unredistributable"
3130 elif enabled gplv3; then
3131     license="GPL version 3 or later"
3132 elif enabled lgplv3; then
3133     license="LGPL version 3 or later"
3134 elif enabled gpl; then
3135     license="GPL version 2 or later"
3136 fi
3137
3138 echo "License: $license"
3139
3140 echo "Creating config.mak and config.h..."
3141
3142 # build tree in object directory if source path is different from current one
3143 if enabled source_path_used; then
3144     DIRS="
3145         doc
3146         libavcodec
3147         libavcodec/$arch
3148         libavdevice
3149         libavfilter
3150         libavfilter/$arch
3151         libavfilter/libmpcodecs
3152         libavfilter/libmpcodecs/libvo
3153         libavformat
3154         libavutil
3155         libavutil/$arch
3156         libpostproc
3157         libswscale
3158         libswscale/$arch
3159         tests
3160         tools
3161     "
3162     FILES="
3163         Makefile
3164         common.mak
3165         subdir.mak
3166         doc/texi2pod.pl
3167         libavcodec/Makefile
3168         libavcodec/${arch}/Makefile
3169         libavdevice/Makefile
3170         libavfilter/Makefile
3171         libavfilter/${arch}/Makefile
3172         libavformat/Makefile
3173         libavutil/Makefile
3174         libpostproc/Makefile
3175         libswscale/Makefile
3176     "
3177     map 'mkdir -p $v' $DIRS;
3178     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3179 fi
3180
3181 enabled stripping || strip="echo skipping strip"
3182
3183 config_files="$TMPH config.mak"
3184
3185 cat > config.mak <<EOF
3186 # Automatically generated by configure - do not modify!
3187 ifndef FFMPEG_CONFIG_MAK
3188 FFMPEG_CONFIG_MAK=1
3189 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3190 prefix=$prefix
3191 LIBDIR=\$(DESTDIR)$libdir
3192 SHLIBDIR=\$(DESTDIR)$shlibdir
3193 INCDIR=\$(DESTDIR)$incdir
3194 BINDIR=\$(DESTDIR)$bindir
3195 DATADIR=\$(DESTDIR)$datadir
3196 MANDIR=\$(DESTDIR)$mandir
3197 SRC_PATH="$source_path"
3198 SRC_PATH_BARE=$source_path
3199 BUILD_ROOT="$PWD"
3200 CC_IDENT=$cc_ident
3201 ARCH=$arch
3202 CC=$cc
3203 AS=$as
3204 LD=$ld
3205 DEPCC=$dep_cc
3206 YASM=$yasmexe
3207 YASMDEP=$yasmexe
3208 AR=$ar
3209 RANLIB=$ranlib
3210 CP=cp -p
3211 LN_S=$ln_s
3212 STRIP=$strip
3213 CPPFLAGS=$CPPFLAGS
3214 CFLAGS=$CFLAGS
3215 ASFLAGS=$ASFLAGS
3216 CC_O=$CC_O
3217 LDFLAGS=$LDFLAGS
3218 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3219 SHFLAGS=$SHFLAGS
3220 YASMFLAGS=$YASMFLAGS
3221 BUILDSUF=$build_suffix
3222 FULLNAME=$FULLNAME
3223 LIBPREF=$LIBPREF
3224 LIBSUF=$LIBSUF
3225 LIBNAME=$LIBNAME
3226 SLIBPREF=$SLIBPREF
3227 SLIBSUF=$SLIBSUF
3228 EXESUF=$EXESUF
3229 EXTRA_VERSION=$extra_version
3230 DEPFLAGS=$DEPFLAGS
3231 CCDEP=$CCDEP
3232 ASDEP=$ASDEP
3233 CC_DEPFLAGS=$CC_DEPFLAGS
3234 AS_DEPFLAGS=$AS_DEPFLAGS
3235 HOSTCC=$host_cc
3236 HOSTCFLAGS=$host_cflags
3237 HOSTEXESUF=$HOSTEXESUF
3238 HOSTLDFLAGS=$host_ldflags
3239 HOSTLIBS=$host_libs
3240 TARGET_EXEC=$target_exec
3241 TARGET_PATH=$target_path
3242 SDL_LIBS=$sdl_libs
3243 SDL_CFLAGS=$sdl_cflags
3244 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3245 EXTRALIBS=$extralibs
3246 INSTALL=install
3247 LIBTARGET=${LIBTARGET}
3248 SLIBNAME=${SLIBNAME}
3249 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3250 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3251 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3252 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3253 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3254 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3255 SAMPLES=$samples
3256 EOF
3257
3258 get_version(){
3259     name=$1
3260     file=$source_path/$2
3261     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3262     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3263     lcname=$(tolower $name)
3264     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3265     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3266 }
3267
3268 get_version LIBSWSCALE  libswscale/swscale.h
3269 get_version LIBPOSTPROC libpostproc/postprocess.h
3270 get_version LIBAVCODEC  libavcodec/avcodec.h
3271 get_version LIBAVDEVICE libavdevice/avdevice.h
3272 get_version LIBAVFORMAT libavformat/version.h
3273 get_version LIBAVUTIL   libavutil/avutil.h
3274 get_version LIBAVFILTER libavfilter/avfilter.h
3275
3276 cat > $TMPH <<EOF
3277 /* Automatically generated by configure - do not modify! */
3278 #ifndef FFMPEG_CONFIG_H
3279 #define FFMPEG_CONFIG_H
3280 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3281 #define FFMPEG_LICENSE "$(c_escape $license)"
3282 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3283 #define CC_TYPE "$cc_type"
3284 #define CC_VERSION $cc_version
3285 #define restrict $_restrict
3286 #define EXTERN_PREFIX "${extern_prefix}"
3287 #define EXTERN_ASM ${extern_prefix}
3288 #define SLIBSUF "$SLIBSUF"
3289 EOF
3290
3291 test -n "$malloc_prefix" &&
3292     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3293
3294 if enabled small || disabled optimizations; then
3295     echo "#undef  av_always_inline"  >> $TMPH
3296     if enabled small; then
3297         echo "#define av_always_inline inline"  >> $TMPH
3298     else
3299         echo "#define av_always_inline av_unused"  >> $TMPH
3300     fi
3301 fi
3302
3303 if enabled yasm; then
3304     append config_files $TMPASM
3305     printf '' >$TMPASM
3306 fi
3307
3308 print_config ARCH_   "$config_files" $ARCH_LIST
3309 print_config HAVE_   "$config_files" $HAVE_LIST
3310 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3311                                      $CONFIG_EXTRA      \
3312                                      $DECODER_LIST      \
3313                                      $ENCODER_LIST      \
3314                                      $HWACCEL_LIST      \
3315                                      $PARSER_LIST       \
3316                                      $BSF_LIST          \
3317                                      $DEMUXER_LIST      \
3318                                      $MUXER_LIST        \
3319                                      $FILTER_LIST       \
3320                                      $PROTOCOL_LIST     \
3321                                      $INDEV_LIST        \
3322                                      $OUTDEV_LIST       \
3323
3324 cat >>config.mak <<EOF
3325 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3326 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3327 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3328 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3329 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3330 EOF
3331
3332 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3333 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3334
3335 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3336 cp_if_changed $TMPH config.h
3337 touch .config
3338
3339 enabled yasm && cp_if_changed $TMPASM config.asm
3340
3341 cat > $TMPH <<EOF
3342 /* Generated by ffconf */
3343 #ifndef AVUTIL_AVCONFIG_H
3344 #define AVUTIL_AVCONFIG_H
3345 EOF
3346
3347 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3348
3349 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3350
3351 cp_if_changed $TMPH libavutil/avconfig.h
3352
3353 test -n "$WARNINGS" && printf "\n$WARNINGS"
3354
3355 # build pkg-config files
3356
3357 pkgconfig_generate(){
3358 name=$1
3359 shortname=${name#lib}${build_suffix}
3360 comment=$2
3361 version=$3
3362 libs=$4
3363 requires=$5
3364 enabled ${name#lib} || return 0
3365 cat <<EOF > $name/$name.pc
3366 prefix=$prefix
3367 exec_prefix=\${prefix}
3368 libdir=$libdir
3369 includedir=$incdir
3370
3371 Name: $name
3372 Description: $comment
3373 Version: $version
3374 Requires: $(enabled shared || echo $requires)
3375 Requires.private: $(enabled shared && echo $requires)
3376 Conflicts:
3377 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3378 Libs.private: $(enabled shared && echo $libs)
3379 Cflags: -I\${includedir}
3380 EOF
3381 cat <<EOF > $name/$name-uninstalled.pc
3382 prefix=
3383 exec_prefix=
3384 libdir=\${pcfiledir}
3385 includedir=${source_path}
3386
3387 Name: $name
3388 Description: $comment
3389 Version: $version
3390 Requires: $requires
3391 Conflicts:
3392 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3393 Cflags: -I\${includedir}
3394 EOF
3395 }
3396
3397 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3398 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3399 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3400 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3401 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3402 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3403 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"