configure

   1 #!/bin/sh
   2 #
   3 # Libav 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 LIBAV, 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 Libav."
  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-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --source-path=PATH       path to source code [$source_path]
 195   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 196   --enable-cross-compile   assume a cross-compiler is used
 197   --sysroot=PATH           root of cross-build tree
 198   --sysinclude=PATH        location of cross-build system headers
 199   --target-os=OS           compiler targets OS [$target_os]
 200   --target-exec=CMD        command to run executables on target
 201   --target-path=DIR        path to view of build directory on target
 202   --nm=NM                  use nm tool
 203   --ar=AR                  use archive tool AR [$ar_default]
 204   --as=AS                  use assembler AS [$as_default]
 205   --cc=CC                  use C compiler CC [$cc_default]
 206   --ld=LD                  use linker LD
 207   --host-cc=HOSTCC         use host C compiler HOSTCC
 208   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 209   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 210   --host-libs=HLIBS        use libs HLIBS when linking for host
 211   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 212   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 213   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 214   --extra-version=STRING   version string suffix []
 215   --build-suffix=SUFFIX    library name suffix []
 216   --arch=ARCH              select architecture [$arch]
 217   --cpu=CPU                select the minimum required CPU (affects
 218                            instruction selection, may crash on older CPUs)
 219   --disable-asm            disable all assembler optimizations
 220   --disable-altivec        disable AltiVec optimizations
 221   --disable-amd3dnow       disable 3DNow! optimizations
 222   --disable-amd3dnowext    disable 3DNow! extended optimizations
 223   --disable-mmx            disable MMX optimizations
 224   --disable-mmx2           disable MMX2 optimizations
 225   --disable-sse            disable SSE optimizations
 226   --disable-ssse3          disable SSSE3 optimizations
 227   --disable-avx            disable AVX optimizations
 228   --disable-armv5te        disable armv5te optimizations
 229   --disable-armv6          disable armv6 optimizations
 230   --disable-armv6t2        disable armv6t2 optimizations
 231   --disable-armvfp         disable ARM VFP optimizations
 232   --disable-iwmmxt         disable iwmmxt optimizations
 233   --disable-mmi            disable MMI optimizations
 234   --disable-neon           disable neon optimizations
 235   --disable-vis            disable VIS optimizations
 236   --disable-yasm           disable use of yasm assembler
 237   --enable-pic             build position-independent code
 238   --malloc-prefix=PFX      prefix malloc and related names with PFX
 239   --enable-sram            allow use of on-chip SRAM
 240   --disable-symver         disable symbol versioning
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" &&
 879         echo "$2 is unchanged" ||
 880         cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libgsm
 932     libmp3lame
 933     libnut
 934     libopencore_amrnb
 935     libopencore_amrwb
 936     libopencv
 937     libopenjpeg
 938     librtmp
 939     libschroedinger
 940     libspeex
 941     libtheora
 942     libvo_aacenc
 943     libvo_amrwbenc
 944     libvorbis
 945     libvpx
 946     libx264
 947     libxavs
 948     libxvid
 949     lpc
 950     lsp
 951     mdct
 952     memalign_hack
 953     mlib
 954     mpegaudio_hp
 955     network
 956     nonfree
 957     pic
 958     postproc
 959     rdft
 960     rtpdec
 961     runtime_cpudetect
 962     shared
 963     sinewin
 964     small
 965     sram
 966     static
 967     swscale
 968     swscale_alpha
 969     vaapi
 970     vdpau
 971     version3
 972     x11grab
 973     zlib
 974 "
 975
 976 THREADS_LIST='
 977     pthreads
 978     w32threads
 979 '
 980
 981 ARCH_LIST='
 982     alpha
 983     arm
 984     avr32
 985     avr32_ap
 986     avr32_uc
 987     bfin
 988     ia64
 989     m68k
 990     mips
 991     mips64
 992     parisc
 993     ppc
 994     ppc64
 995     s390
 996     sh4
 997     sparc
 998     sparc64
 999     tomi
1000     x86
1001     x86_32
1002     x86_64
1003 '
1004
1005 ARCH_EXT_LIST='
1006     altivec
1007     amd3dnow
1008     amd3dnowext
1009     armv5te
1010     armv6
1011     armv6t2
1012     armvfp
1013     avx
1014     iwmmxt
1015     mmi
1016     mmx
1017     mmx2
1018     neon
1019     ppc4xx
1020     sse
1021     ssse3
1022     vis
1023 '
1024
1025 HAVE_LIST_PUB='
1026     bigendian
1027     fast_unaligned
1028 '
1029
1030 HAVE_LIST="
1031     $ARCH_EXT_LIST
1032     $HAVE_LIST_PUB
1033     $THREADS_LIST
1034     aligned_stack
1035     alsa_asoundlib_h
1036     altivec_h
1037     arpa_inet_h
1038     attribute_may_alias
1039     attribute_packed
1040     bswap
1041     closesocket
1042     cmov
1043     dcbzl
1044     dev_bktr_ioctl_bt848_h
1045     dev_bktr_ioctl_meteor_h
1046     dev_ic_bt8xx_h
1047     dev_video_meteor_ioctl_meteor_h
1048     dev_video_bktr_ioctl_bt848_h
1049     dlfcn_h
1050     dlopen
1051     dos_paths
1052     ebp_available
1053     ebx_available
1054     exp2
1055     exp2f
1056     fast_64bit
1057     fast_clz
1058     fast_cmov
1059     fcntl
1060     fork
1061     getaddrinfo
1062     gethrtime
1063     GetProcessMemoryInfo
1064     GetProcessTimes
1065     getrusage
1066     gnu_as
1067     struct_rusage_ru_maxrss
1068     ibm_asm
1069     inet_aton
1070     inline_asm
1071     isatty
1072     kbhit
1073     ldbrx
1074     libdc1394_1
1075     libdc1394_2
1076     llrint
1077     llrintf
1078     local_aligned_16
1079     local_aligned_8
1080     log2
1081     log2f
1082     loongson
1083     lrint
1084     lrintf
1085     lzo1x_999_compress
1086     machine_ioctl_bt848_h
1087     machine_ioctl_meteor_h
1088     malloc_h
1089     MapViewOfFile
1090     memalign
1091     mkstemp
1092     mmap
1093     pld
1094     posix_memalign
1095     round
1096     roundf
1097     sdl
1098     sdl_video_size
1099     setmode
1100     sndio_h
1101     socklen_t
1102     soundcard_h
1103     poll_h
1104     setrlimit
1105     strerror_r
1106     strtok_r
1107     struct_addrinfo
1108     struct_ipv6_mreq
1109     struct_sockaddr_in6
1110     struct_sockaddr_sa_len
1111     struct_sockaddr_storage
1112     symver
1113     symver_gnu_asm
1114     symver_asm_label
1115     sys_mman_h
1116     sys_resource_h
1117     sys_select_h
1118     sys_soundcard_h
1119     sys_videoio_h
1120     ten_operands
1121     threads
1122     trunc
1123     truncf
1124     vfp_args
1125     VirtualAlloc
1126     winsock2_h
1127     xform_asm
1128     xmm_clobbers
1129     yasm
1130 "
1131
1132 # options emitted with CONFIG_ prefix but not available on command line
1133 CONFIG_EXTRA="
1134     avutil
1135     gplv3
1136     lgplv3
1137 "
1138
1139 CMDLINE_SELECT="
1140     $ARCH_EXT_LIST
1141     $CONFIG_LIST
1142     $THREADS_LIST
1143     asm
1144     cross_compile
1145     debug
1146     extra_warnings
1147     logging
1148     optimizations
1149     symver
1150     yasm
1151 "
1152
1153 PATHS_LIST='
1154     bindir
1155     datadir
1156     incdir
1157     libdir
1158     mandir
1159     prefix
1160     shlibdir
1161 '
1162
1163 CMDLINE_SET="
1164     $PATHS_LIST
1165     ar
1166     arch
1167     as
1168     build_suffix
1169     cc
1170     cpu
1171     cross_prefix
1172     dep_cc
1173     extra_version
1174     host_cc
1175     host_cflags
1176     host_ldflags
1177     host_libs
1178     host_os
1179     ld
1180     logfile
1181     malloc_prefix
1182     nm
1183     pkg_config
1184     samples
1185     source_path
1186     sysinclude
1187     sysroot
1188     target_exec
1189     target_os
1190     target_path
1191 "
1192
1193 CMDLINE_APPEND="
1194     extra_cflags
1195 "
1196
1197 # code dependency declarations
1198
1199 # architecture extensions
1200
1201 armv5te_deps="arm"
1202 armv6_deps="arm"
1203 armv6t2_deps="arm"
1204 armvfp_deps="arm"
1205 iwmmxt_deps="arm"
1206 neon_deps="arm"
1207
1208 mmi_deps="mips"
1209
1210 altivec_deps="ppc"
1211 ppc4xx_deps="ppc"
1212
1213 vis_deps="sparc"
1214
1215 x86_64_suggest="cmov fast_cmov"
1216 amd3dnow_deps="mmx"
1217 amd3dnowext_deps="amd3dnow"
1218 mmx_deps="x86"
1219 mmx2_deps="mmx"
1220 sse_deps="mmx"
1221 ssse3_deps="sse"
1222 avx_deps="ssse3"
1223
1224 aligned_stack_if_any="ppc x86"
1225 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1226 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1227 fast_unaligned_if_any="armv6 ppc x86"
1228
1229 need_memalign="altivec neon sse"
1230 inline_asm_deps="!tms470"
1231
1232 symver_if_any="symver_asm_label symver_gnu_asm"
1233
1234 # subsystems
1235 dct_select="rdft"
1236 mdct_select="fft"
1237 rdft_select="fft"
1238
1239 # decoders / encoders / hardware accelerators
1240 aac_decoder_select="mdct sinewin"
1241 aac_encoder_select="mdct sinewin"
1242 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1243 ac3_decoder_select="mdct ac3dsp ac3_parser"
1244 ac3_encoder_select="mdct ac3dsp"
1245 ac3_fixed_encoder_select="ac3dsp"
1246 alac_encoder_select="lpc"
1247 amrnb_decoder_select="lsp"
1248 amrwb_decoder_select="lsp"
1249 atrac1_decoder_select="mdct sinewin"
1250 atrac3_decoder_select="mdct"
1251 binkaudio_dct_decoder_select="mdct rdft dct"
1252 binkaudio_rdft_decoder_select="mdct rdft"
1253 cavs_decoder_select="golomb"
1254 cook_decoder_select="mdct sinewin"
1255 cscd_decoder_suggest="zlib"
1256 dca_decoder_select="mdct"
1257 dnxhd_encoder_select="aandct"
1258 dxa_decoder_select="zlib"
1259 eac3_decoder_select="ac3_decoder"
1260 eamad_decoder_select="aandct"
1261 eatgq_decoder_select="aandct"
1262 eatqi_decoder_select="aandct"
1263 ffv1_decoder_select="golomb"
1264 flac_decoder_select="golomb"
1265 flac_encoder_select="golomb lpc"
1266 flashsv_decoder_select="zlib"
1267 flashsv_encoder_select="zlib"
1268 flv_decoder_select="h263_decoder"
1269 flv_encoder_select="h263_encoder"
1270 fraps_decoder_select="huffman"
1271 h261_encoder_select="aandct"
1272 h263_decoder_select="h263_parser"
1273 h263_encoder_select="aandct"
1274 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1275 h263i_decoder_select="h263_decoder"
1276 h263p_encoder_select="h263_encoder"
1277 h264_decoder_select="golomb h264dsp h264pred"
1278 h264_dxva2_hwaccel_deps="dxva2api_h"
1279 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1280 h264_vaapi_hwaccel_select="vaapi"
1281 h264_vdpau_decoder_select="vdpau h264_decoder"
1282 imc_decoder_select="fft mdct"
1283 jpegls_decoder_select="golomb"
1284 jpegls_encoder_select="golomb"
1285 ljpeg_encoder_select="aandct"
1286 loco_decoder_select="golomb"
1287 mjpeg_encoder_select="aandct"
1288 mlp_decoder_select="mlp_parser"
1289 mp1float_decoder_select="dct"
1290 mp2float_decoder_select="dct"
1291 mp3adufloat_decoder_select="dct"
1292 mp3float_decoder_select="dct"
1293 mp3on4float_decoder_select="dct"
1294 mpeg1video_encoder_select="aandct"
1295 mpeg2video_encoder_select="aandct"
1296 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1297 mpeg4_encoder_select="h263_encoder"
1298 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1299 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1300 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1301 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1302 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1303 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1304 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1305 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1306 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1307 msmpeg4v1_decoder_select="h263_decoder"
1308 msmpeg4v1_encoder_select="h263_encoder"
1309 msmpeg4v2_decoder_select="h263_decoder"
1310 msmpeg4v2_encoder_select="h263_encoder"
1311 msmpeg4v3_decoder_select="h263_decoder"
1312 msmpeg4v3_encoder_select="h263_encoder"
1313 nellymoser_decoder_select="mdct sinewin"
1314 nellymoser_encoder_select="mdct sinewin"
1315 png_decoder_select="zlib"
1316 png_encoder_select="zlib"
1317 qcelp_decoder_select="lsp"
1318 qdm2_decoder_select="mdct rdft"
1319 ra_144_encoder_select="lpc"
1320 rv10_decoder_select="h263_decoder"
1321 rv10_encoder_select="h263_encoder"
1322 rv20_decoder_select="h263_decoder"
1323 rv20_encoder_select="h263_encoder"
1324 rv30_decoder_select="golomb h264pred"
1325 rv40_decoder_select="golomb h264pred"
1326 shorten_decoder_select="golomb"
1327 sipr_decoder_select="lsp"
1328 snow_decoder_select="dwt"
1329 snow_encoder_select="aandct dwt"
1330 svq1_encoder_select="aandct"
1331 svq3_decoder_select="golomb h264dsp h264pred"
1332 svq3_decoder_suggest="zlib"
1333 theora_decoder_select="vp3_decoder"
1334 tiff_decoder_suggest="zlib"
1335 tiff_encoder_suggest="zlib"
1336 truehd_decoder_select="mlp_decoder"
1337 tscc_decoder_select="zlib"
1338 twinvq_decoder_select="mdct lsp sinewin"
1339 vc1_decoder_select="h263_decoder"
1340 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1341 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1342 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1343 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1344 vorbis_decoder_select="mdct"
1345 vorbis_encoder_select="mdct"
1346 vp6_decoder_select="huffman"
1347 vp6a_decoder_select="vp6_decoder"
1348 vp6f_decoder_select="vp6_decoder"
1349 vp8_decoder_select="h264pred"
1350 wmapro_decoder_select="mdct sinewin"
1351 wmav1_decoder_select="mdct sinewin"
1352 wmav1_encoder_select="mdct sinewin"
1353 wmav2_decoder_select="mdct sinewin"
1354 wmav2_encoder_select="mdct sinewin"
1355 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1356 wmv1_decoder_select="h263_decoder"
1357 wmv1_encoder_select="h263_encoder"
1358 wmv2_decoder_select="h263_decoder"
1359 wmv2_encoder_select="h263_encoder"
1360 wmv3_decoder_select="vc1_decoder"
1361 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1362 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1363 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1364 zlib_decoder_select="zlib"
1365 zlib_encoder_select="zlib"
1366 zmbv_decoder_select="zlib"
1367 zmbv_encoder_select="zlib"
1368
1369 vaapi_deps="va_va_h"
1370 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1371
1372 # parsers
1373 h264_parser_select="golomb h264dsp h264pred"
1374
1375 # external libraries
1376 libdirac_decoder_deps="libdirac !libschroedinger"
1377 libdirac_encoder_deps="libdirac"
1378 libfaac_encoder_deps="libfaac"
1379 libgsm_decoder_deps="libgsm"
1380 libgsm_encoder_deps="libgsm"
1381 libgsm_ms_decoder_deps="libgsm"
1382 libgsm_ms_encoder_deps="libgsm"
1383 libmp3lame_encoder_deps="libmp3lame"
1384 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1385 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1386 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1387 libopenjpeg_decoder_deps="libopenjpeg"
1388 libschroedinger_decoder_deps="libschroedinger"
1389 libschroedinger_encoder_deps="libschroedinger"
1390 libspeex_decoder_deps="libspeex"
1391 libtheora_encoder_deps="libtheora"
1392 libvo_aacenc_encoder_deps="libvo_aacenc"
1393 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1394 libvorbis_encoder_deps="libvorbis"
1395 libvpx_decoder_deps="libvpx"
1396 libvpx_encoder_deps="libvpx"
1397 libx264_encoder_deps="libx264"
1398 libxavs_encoder_deps="libxavs"
1399 libxvid_encoder_deps="libxvid"
1400
1401 # demuxers / muxers
1402 ac3_demuxer_select="ac3_parser"
1403 asf_stream_muxer_select="asf_muxer"
1404 avisynth_demuxer_deps="avisynth"
1405 dirac_demuxer_select="dirac_parser"
1406 eac3_demuxer_select="ac3_parser"
1407 flac_demuxer_select="flac_parser"
1408 ipod_muxer_select="mov_muxer"
1409 libnut_demuxer_deps="libnut"
1410 libnut_muxer_deps="libnut"
1411 matroska_audio_muxer_select="matroska_muxer"
1412 matroska_demuxer_suggest="zlib bzlib"
1413 mov_demuxer_suggest="zlib"
1414 mp3_demuxer_select="mpegaudio_parser"
1415 mp4_muxer_select="mov_muxer"
1416 mpegtsraw_demuxer_select="mpegts_demuxer"
1417 mxf_d10_muxer_select="mxf_muxer"
1418 ogg_demuxer_select="golomb"
1419 psp_muxer_select="mov_muxer"
1420 rtp_demuxer_select="sdp_demuxer"
1421 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1422 rtsp_demuxer_select="http_protocol rtpdec"
1423 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1424 sap_demuxer_select="sdp_demuxer"
1425 sap_muxer_select="rtp_muxer rtp_protocol"
1426 sdp_demuxer_select="rtpdec"
1427 spdif_muxer_select="aac_parser"
1428 tg2_muxer_select="mov_muxer"
1429 tgp_muxer_select="mov_muxer"
1430 w64_demuxer_deps="wav_demuxer"
1431
1432 # indevs / outdevs
1433 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1434 alsa_outdev_deps="alsa_asoundlib_h"
1435 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1436 dv1394_indev_deps="dv1394 dv_demuxer"
1437 fbdev_indev_deps="linux_fb_h"
1438 jack_indev_deps="jack_jack_h"
1439 libdc1394_indev_deps="libdc1394"
1440 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1441 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1442 sndio_indev_deps="sndio_h"
1443 sndio_outdev_deps="sndio_h"
1444 v4l_indev_deps="linux_videodev_h"
1445 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1446 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1447 vfwcap_indev_extralibs="-lavicap32"
1448 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1449 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1450
1451 # protocols
1452 gopher_protocol_deps="network"
1453 http_protocol_deps="network"
1454 http_protocol_select="tcp_protocol"
1455 mmsh_protocol_select="http_protocol"
1456 mmst_protocol_deps="network"
1457 rtmp_protocol_select="tcp_protocol"
1458 rtp_protocol_select="udp_protocol"
1459 tcp_protocol_deps="network"
1460 udp_protocol_deps="network"
1461
1462 # filters
1463 blackframe_filter_deps="gpl"
1464 cropdetect_filter_deps="gpl"
1465 frei0r_filter_deps="frei0r dlopen strtok_r"
1466 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1467 hqdn3d_filter_deps="gpl"
1468 scale_filter_deps="swscale"
1469 ocv_filter_deps="libopencv"
1470 yadif_filter_deps="gpl"
1471
1472 # libraries
1473 avdevice_deps="avcodec avformat"
1474 avformat_deps="avcodec"
1475
1476 # programs
1477 ffmpeg_deps="avcodec avformat swscale"
1478 ffmpeg_select="buffer_filter"
1479 ffplay_deps="avcodec avformat swscale sdl"
1480 ffplay_select="rdft"
1481 ffprobe_deps="avcodec avformat"
1482 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1483 ffserver_extralibs='$ldl'
1484
1485 doc_deps="texi2html"
1486
1487 # tests
1488
1489 test_deps(){
1490     suf1=$1
1491     suf2=$2
1492     shift 2
1493     for v; do
1494         dep=${v%=*}
1495         tests=${v#*=}
1496         for name in ${tests}; do
1497             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1498         done
1499     done
1500 }
1501
1502 set_ne_test_deps(){
1503     eval ${1}_be_test_deps="bigendian"
1504     eval ${1}_le_test_deps="!bigendian"
1505 }
1506
1507 test_deps _encoder _decoder                                             \
1508     adpcm_g726=g726                                                     \
1509     adpcm_ima_qt                                                        \
1510     adpcm_ima_wav                                                       \
1511     adpcm_ms                                                            \
1512     adpcm_swf                                                           \
1513     adpcm_yamaha=adpcm_yam                                              \
1514     alac                                                                \
1515     asv1                                                                \
1516     asv2                                                                \
1517     bmp                                                                 \
1518     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1519     dvvideo="dv dv50"                                                   \
1520     ffv1                                                                \
1521     flac                                                                \
1522     flashsv                                                             \
1523     flv                                                                 \
1524     gif                                                                 \
1525     h261                                                                \
1526     h263="h263 h263p"                                                   \
1527     huffyuv                                                             \
1528     jpegls                                                              \
1529     mjpeg="jpg mjpeg ljpeg"                                             \
1530     mp2                                                                 \
1531     mpeg1video="mpeg mpeg1b"                                            \
1532     mpeg2video="mpeg2 mpeg2thread"                                      \
1533     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1534     msmpeg4v3=msmpeg4                                                   \
1535     msmpeg4v2                                                           \
1536     pbm=pbmpipe                                                         \
1537     pcx                                                                 \
1538     pgm="pgm pgmpipe"                                                   \
1539     png                                                                 \
1540     ppm="ppm ppmpipe"                                                   \
1541     rawvideo="rgb yuv"                                                  \
1542     roq                                                                 \
1543     rv10                                                                \
1544     rv20                                                                \
1545     sgi                                                                 \
1546     snow="snow snowll"                                                  \
1547     svq1                                                                \
1548     targa=tga                                                           \
1549     tiff                                                                \
1550     wmav1                                                               \
1551     wmav2                                                               \
1552     wmv1                                                                \
1553     wmv2                                                                \
1554
1555 test_deps _muxer _demuxer                                               \
1556     aiff                                                                \
1557     pcm_alaw=alaw                                                       \
1558     asf                                                                 \
1559     au                                                                  \
1560     avi                                                                 \
1561     dv=dv_fmt                                                           \
1562     ffm                                                                 \
1563     flv=flv_fmt                                                         \
1564     gxf                                                                 \
1565     matroska=mkv                                                        \
1566     mmf                                                                 \
1567     mov                                                                 \
1568     pcm_mulaw=mulaw                                                     \
1569     mxf                                                                 \
1570     nut                                                                 \
1571     ogg                                                                 \
1572     rawvideo=pixfmt                                                     \
1573     rm                                                                  \
1574     swf                                                                 \
1575     mpegts=ts                                                           \
1576     voc                                                                 \
1577     wav                                                                 \
1578     yuv4mpegpipe=yuv4mpeg                                               \
1579
1580 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1581 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1582
1583 set_ne_test_deps pixdesc
1584 set_ne_test_deps pixfmts_copy
1585 set_ne_test_deps pixfmts_crop
1586 set_ne_test_deps pixfmts_hflip
1587 set_ne_test_deps pixfmts_null
1588 set_ne_test_deps pixfmts_pad
1589 set_ne_test_deps pixfmts_scale
1590 set_ne_test_deps pixfmts_vflip
1591
1592 # default parameters
1593
1594 logfile="config.log"
1595
1596 # installation paths
1597 prefix_default="/usr/local"
1598 bindir_default='${prefix}/bin'
1599 datadir_default='${prefix}/share/ffmpeg'
1600 incdir_default='${prefix}/include'
1601 libdir_default='${prefix}/lib'
1602 mandir_default='${prefix}/share/man'
1603 shlibdir_default="$libdir_default"
1604
1605 # toolchain
1606 ar_default="ar"
1607 cc_default="gcc"
1608 cc_version=\"unknown\"
1609 host_cc_default="gcc"
1610 ln_s="ln -sf"
1611 nm_default="nm"
1612 objformat="elf"
1613 pkg_config_default=pkg-config
1614 ranlib="ranlib"
1615 yasmexe="yasm"
1616 nogas=":"
1617
1618 nm_opts='-g'
1619
1620 # machine
1621 arch_default=$(uname -m)
1622 cpu="generic"
1623
1624 # OS
1625 target_os_default=$(tolower $(uname -s))
1626 host_os=$target_os_default
1627
1628 # configurable options
1629 enable avcodec
1630 enable avdevice
1631 enable avfilter
1632 enable avformat
1633 enable avutil
1634 enable asm
1635 enable debug
1636 enable doc
1637 enable fastdiv
1638 enable ffmpeg
1639 enable ffplay
1640 enable ffprobe
1641 enable ffserver
1642 enable mpegaudio_hp
1643 enable network
1644 enable optimizations
1645 enable protocols
1646 enable static
1647 enable swscale
1648 enable swscale_alpha
1649
1650 # build settings
1651 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1652 FFSERVERLDFLAGS=-Wl,-E
1653 LIBPREF="lib"
1654 LIBSUF=".a"
1655 FULLNAME='$(NAME)$(BUILDSUF)'
1656 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1657 SLIBPREF="lib"
1658 SLIBSUF=".so"
1659 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1660 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1661 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1662 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1663
1664 CC_O='-o $@'
1665
1666 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1667 host_libs='-lm'
1668
1669 target_path='$(CURDIR)'
1670
1671 # since the object filename is not given with the -MM flag, the compiler
1672 # is only able to print the basename, and we must add the path ourselves
1673 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1674 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1675
1676 # find source path
1677 source_path="$(dirname "$0")"
1678 enable source_path_used
1679 if test -f configure; then
1680     source_path="$(pwd)"
1681     disable source_path_used
1682 else
1683     source_path="$(cd "$source_path"; pwd)"
1684     echo "$source_path" | grep -q '[[:blank:]]' &&
1685         die "Out of tree builds are impossible with whitespace in source path."
1686     test -e "$source_path/config.h" &&
1687         die "Out of tree builds are impossible with config.h in source dir."
1688 fi
1689
1690 for v in "$@"; do
1691     r=${v#*=}
1692     l=${v%"$r"}
1693     r=$(sh_quote "$r")
1694     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1695 done
1696
1697 find_things(){
1698     thing=$1
1699     pattern=$2
1700     file=$source_path/$3
1701     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1702 }
1703
1704 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1705 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1706 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1707 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1708 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1709 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1710 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1711 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1712 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1713 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1714 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1715
1716 find_tests(){
1717     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1718 }
1719
1720 ACODEC_TESTS=$(find_tests acodec)
1721 VCODEC_TESTS=$(find_tests vsynth1)
1722 LAVF_TESTS=$(find_tests lavf)
1723 LAVFI_TESTS=$(find_tests lavfi)
1724 SEEK_TESTS=$(find_tests seek seek_)
1725
1726 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1727
1728 for n in $COMPONENT_LIST; do
1729     v=$(toupper ${n%s})_LIST
1730     eval enable \$$v
1731     eval ${n}_if_any="\$$v"
1732 done
1733
1734 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1735
1736 die_unknown(){
1737     echo "Unknown option \"$1\"."
1738     echo "See $0 --help for available options."
1739     exit 1
1740 }
1741
1742 show_list() {
1743     suffix=_$1
1744     shift
1745     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1746     exit 0
1747 }
1748
1749 for opt do
1750     optval="${opt#*=}"
1751     case "$opt" in
1752     --extra-ldflags=*) add_ldflags $optval
1753     ;;
1754     --extra-libs=*) add_extralibs $optval
1755     ;;
1756     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1757     ;;
1758     --enable-debug=*) debuglevel="$optval"
1759     ;;
1760     --disable-everything)
1761     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1762     ;;
1763     --enable-*=*|--disable-*=*)
1764     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1765     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1766     eval list=\$$(toupper $thing)_LIST
1767     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1768     $action $(filter "$name" $list)
1769     ;;
1770     --enable-?*|--disable-?*)
1771     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1772     if is_in $option $COMPONENT_LIST; then
1773         test $action = disable && action=unset
1774         eval $action \$$(toupper ${option%s})_LIST
1775     elif is_in $option $CMDLINE_SELECT; then
1776         $action $option
1777     else
1778         die_unknown $opt
1779     fi
1780     ;;
1781     --list-*)
1782         NAME="${opt#--list-}"
1783         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1784         NAME=${NAME%s}
1785         eval show_list $NAME \$$(toupper $NAME)_LIST
1786     ;;
1787     --help|-h) show_help
1788     ;;
1789     *)
1790     optname="${opt%%=*}"
1791     optname="${optname#--}"
1792     optname=$(echo "$optname" | sed 's/-/_/g')
1793     if is_in $optname $CMDLINE_SET; then
1794         eval $optname='$optval'
1795     elif is_in $optname $CMDLINE_APPEND; then
1796         append $optname "$optval"
1797     else
1798          die_unknown $opt
1799     fi
1800     ;;
1801     esac
1802 done
1803
1804 disabled logging && logfile=/dev/null
1805
1806 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1807 set >> $logfile
1808
1809 test -n "$cross_prefix" && enable cross_compile
1810
1811 if enabled cross_compile; then
1812     test -n "$arch" && test -n "$target_os" ||
1813         die "Must specify target arch and OS when cross-compiling"
1814 fi
1815
1816 set_default arch target_os
1817
1818 ar_default="${cross_prefix}${ar_default}"
1819 cc_default="${cross_prefix}${cc_default}"
1820 nm_default="${cross_prefix}${nm_default}"
1821 pkg_config_default="${cross_prefix}${pkg_config_default}"
1822 ranlib="${cross_prefix}${ranlib}"
1823
1824 sysinclude_default="${sysroot}/usr/include"
1825
1826 set_default cc nm pkg_config sysinclude
1827 enabled cross_compile || host_cc_default=$cc
1828 set_default host_cc
1829
1830 exesuf() {
1831     case $1 in
1832         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1833     esac
1834 }
1835
1836 EXESUF=$(exesuf $target_os)
1837 HOSTEXESUF=$(exesuf $host_os)
1838
1839 # set temporary file name
1840 : ${TMPDIR:=$TEMPDIR}
1841 : ${TMPDIR:=$TMP}
1842 : ${TMPDIR:=/tmp}
1843
1844 if ! check_cmd mktemp -u XXXXXX; then
1845     # simple replacement for missing mktemp
1846     # NOT SAFE FOR GENERAL USE
1847     mktemp(){
1848         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1849     }
1850 fi
1851
1852 tmpfile(){
1853     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1854         (set -C; exec > $tmp) 2>/dev/null ||
1855         die "Unable to create temporary file in $TMPDIR."
1856     append TMPFILES $tmp
1857     eval $1=$tmp
1858 }
1859
1860 trap 'rm -f -- $TMPFILES' EXIT
1861
1862 tmpfile TMPC  .c
1863 tmpfile TMPE  $EXESUF
1864 tmpfile TMPH  .h
1865 tmpfile TMPO  .o
1866 tmpfile TMPS  .S
1867 tmpfile TMPV  .ver
1868 tmpfile TMPSH .sh
1869 tmpfile TMPASM .asm
1870
1871 unset -f mktemp
1872
1873 chmod +x $TMPE
1874
1875 # make sure we can execute files in $TMPDIR
1876 cat > $TMPSH 2>> $logfile <<EOF
1877 #! /bin/sh
1878 EOF
1879 chmod +x $TMPSH >> $logfile 2>&1
1880 if ! $TMPSH >> $logfile 2>&1; then
1881     cat <<EOF
1882 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1883 variable to another directory and make sure that it is not mounted noexec.
1884 EOF
1885     die "Sanity test failed."
1886 fi
1887
1888 filter_cflags=echo
1889 filter_cppflags=echo
1890 filter_asflags=echo
1891
1892 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1893     cc_type=llvm_gcc
1894     cc_version=__VERSION__
1895     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1896     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1897     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1898     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1899     speed_cflags='-O3'
1900     size_cflags='-Os'
1901 elif $cc -v 2>&1 | grep -qi ^gcc; then
1902     cc_type=gcc
1903     cc_version=__VERSION__
1904     gcc_version=$($cc --version | head -n1)
1905     gcc_basever=$($cc -dumpversion)
1906     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1907     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1908     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1909     if ! $cc -dumpversion | grep -q '^2\.'; then
1910         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1911         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1912     fi
1913     speed_cflags='-O3'
1914     size_cflags='-Os'
1915 elif $cc --version 2>/dev/null | grep -q Intel; then
1916     cc_type=icc
1917     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1918     cc_ident=$($cc --version | head -n1)
1919     icc_version=$($cc -dumpversion)
1920     CC_DEPFLAGS='-MMD'
1921     AS_DEPFLAGS='-MMD'
1922     speed_cflags='-O3'
1923     size_cflags='-Os'
1924     noopt_cflags='-O1'
1925 elif $cc -v 2>&1 | grep -q xlc; then
1926     cc_type=xlc
1927     cc_version="AV_STRINGIFY(__IBMC__)"
1928     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1929     speed_cflags='-O5'
1930     size_cflags='-O5 -qcompact'
1931 elif $cc -V 2>/dev/null | grep -q Compaq; then
1932     cc_type=ccc
1933     cc_version="AV_STRINGIFY(__DECC_VER)"
1934     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1935     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1936     debuglevel=3
1937     add_ldflags -Wl,-z,now # calls to libots crash without this
1938     speed_cflags='-fast'
1939     size_cflags='-O1'
1940 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1941     test -d "$sysroot" || die "No valid sysroot specified."
1942     cc_type=armcc
1943     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1944     cc_ident=$($cc --vsn | head -n1)
1945     armcc_conf="$PWD/armcc.conf"
1946     $cc --arm_linux_configure                 \
1947         --arm_linux_config_file="$armcc_conf" \
1948         --configure_sysroot="$sysroot"        \
1949         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1950         die "Error creating armcc configuration file."
1951     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1952     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1953     as_default="${cross_prefix}gcc"
1954     CC_DEPFLAGS='-MMD'
1955     AS_DEPFLAGS='-MMD'
1956     speed_cflags='-O3'
1957     size_cflags='-Os'
1958     filter_asflags="filter_out -W${armcc_opt}*"
1959 elif $cc -version 2>/dev/null | grep -q TMS470; then
1960     cc_type=tms470
1961     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1962     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1963     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1964     CC_O='-fr=$(@D)'
1965     as_default="${cross_prefix}gcc"
1966     ld_default="${cross_prefix}gcc"
1967     TMPO=$(basename $TMPC .c).o
1968     append TMPFILES $TMPO
1969     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1970     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1971     AS_DEPFLAGS='-MMD'
1972     speed_cflags='-O3 -mf=5'
1973     size_cflags='-O3 -mf=2'
1974     filter_cflags=tms470_flags
1975     tms470_flags(){
1976         for flag; do
1977             case $flag in
1978                 -march=*|-mcpu=*)
1979                     case "${flag#*=}" in
1980                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1981                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1982                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1983                         armv6*|arm11*)          echo -mv=6   ;;
1984                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1985                                                 echo -mv=5e  ;;
1986                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1987                     esac
1988                     ;;
1989                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1990                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1991                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1992                 -msoft-float)   echo --float_support=vfplib       ;;
1993                 -O[0-3]|-mf=*)  echo $flag                        ;;
1994                 -g)             echo -g -mn                       ;;
1995                 -pds=*)         echo $flag                        ;;
1996             esac
1997         done
1998     }
1999 elif $cc -v 2>&1 | grep -q clang; then
2000     cc_type=clang
2001     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2002         cc_version=__clang_version__ || cc_version=__VERSION__
2003     cc_ident=$($cc --version | head -n1)
2004     CC_DEPFLAGS='-MMD'
2005     AS_DEPFLAGS='-MMD'
2006     speed_cflags='-O3'
2007     size_cflags='-Os'
2008 elif $cc -V 2>&1 | grep -q Sun; then
2009     cc_type=suncc
2010     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2011     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2012     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2013     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2014     speed_cflags='-O5'
2015     size_cflags='-O5 -xspace'
2016     filter_cflags=suncc_flags
2017     suncc_flags(){
2018         for flag; do
2019             case $flag in
2020                 -march=*|-mcpu=*)
2021                     case "${flag#*=}" in
2022                         native)                   echo -xtarget=native       ;;
2023                         v9|niagara)               echo -xarch=sparc          ;;
2024                         ultrasparc)               echo -xarch=sparcvis       ;;
2025                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2026                         i586|pentium)             echo -xchip=pentium        ;;
2027                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2028                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2029                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2030                         pentium4*)          echo -xtarget=pentium4           ;;
2031                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2032                         *-sse3)             echo -xarch=sse3                 ;;
2033                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2034                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2035                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2036                         k8|opteron|athlon64|athlon-fx)
2037                                                   echo -xarch=sse2a          ;;
2038                         athlon*)                  echo -xarch=pentium_proa   ;;
2039                     esac
2040                     ;;
2041                 -std=c99)             echo -xc99              ;;
2042                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2043                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2044                 -W*,*)                echo $flag              ;;
2045                 -f*-*|-W*)                                    ;;
2046                 *)                    echo $flag              ;;
2047             esac
2048         done
2049     }
2050 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2051     cc_type=pathscale
2052     cc_version=__PATHSCALE__
2053     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2054     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2055     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2056     speed_cflags='-O2'
2057     size_cflags='-Os'
2058 elif $cc -v 2>&1 | grep -q Open64; then
2059     cc_type=open64
2060     cc_version=__OPEN64__
2061     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2062     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2063     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2064     speed_cflags='-O2'
2065     size_cflags='-Os'
2066 fi
2067
2068 test -n "$cc_type" && enable $cc_type ||
2069     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2070
2071 : ${as_default:=$cc}
2072 : ${dep_cc_default:=$cc}
2073 : ${ld_default:=$cc}
2074 set_default ar as dep_cc ld
2075
2076 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2077 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2078
2079 add_cflags $extra_cflags
2080 add_asflags $extra_cflags
2081
2082 if test -n "$sysroot"; then
2083     case "$cc_type" in
2084         gcc|llvm_gcc|clang)
2085             add_cppflags --sysroot="$sysroot"
2086             add_ldflags --sysroot="$sysroot"
2087         ;;
2088         tms470)
2089             add_cppflags -I"$sysinclude"
2090             add_ldflags  --sysroot="$sysroot"
2091         ;;
2092     esac
2093 fi
2094
2095 if test "$cpu" = host; then
2096     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2097
2098     case "$cc_type" in
2099         gcc|llvm_gcc)
2100             check_native(){
2101                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2102                 sed -n "/$1=/{
2103                             s/.*$1=\\([^ ]*\\).*/\\1/
2104                             p
2105                             q
2106                         }" $TMPE
2107             }
2108             cpu=$(check_native -march || check_native -mcpu)
2109         ;;
2110     esac
2111
2112     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2113 fi
2114
2115 # Deal with common $arch aliases
2116 case "$arch" in
2117     arm*)
2118         arch="arm"
2119     ;;
2120     mips|mipsel|IP*)
2121         arch="mips"
2122     ;;
2123     mips64*)
2124         arch="mips"
2125         subarch="mips64"
2126     ;;
2127     parisc|hppa)
2128         arch="parisc"
2129     ;;
2130     parisc64|hppa64)
2131         arch="parisc"
2132         subarch="parisc64"
2133     ;;
2134     "Power Macintosh"|ppc|powerpc)
2135         arch="ppc"
2136     ;;
2137     ppc64|powerpc64)
2138         arch="ppc"
2139         subarch="ppc64"
2140     ;;
2141     s390|s390x)
2142         arch="s390"
2143     ;;
2144     sh4|sh)
2145         arch="sh4"
2146     ;;
2147     sun4u|sparc64)
2148         arch="sparc"
2149         subarch="sparc64"
2150     ;;
2151     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2152         arch="x86"
2153     ;;
2154 esac
2155
2156 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2157 enable $arch
2158
2159 # Add processor-specific flags
2160 if test "$cpu" = generic; then
2161     : do nothing
2162 elif enabled ppc; then
2163
2164     case $(tolower $cpu) in
2165         601|ppc601|powerpc601)
2166             cpuflags="-mcpu=601"
2167             disable altivec
2168         ;;
2169         603*|ppc603*|powerpc603*)
2170             cpuflags="-mcpu=603"
2171             disable altivec
2172         ;;
2173         604*|ppc604*|powerpc604*)
2174             cpuflags="-mcpu=604"
2175             disable altivec
2176         ;;
2177         g3|75*|ppc75*|powerpc75*)
2178             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2179             disable altivec
2180         ;;
2181         g4|745*|ppc745*|powerpc745*)
2182             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2183         ;;
2184         74*|ppc74*|powerpc74*)
2185             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2186         ;;
2187         g5|970|ppc970|powerpc970|power4*)
2188             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2189         ;;
2190         cell)
2191             cpuflags="-mcpu=cell"
2192             enable ldbrx
2193         ;;
2194         e500v2)
2195             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2196             disable altivec
2197         ;;
2198         e500)
2199             cpuflags="-mcpu=8540 -mhard-float"
2200             disable altivec
2201         ;;
2202     esac
2203
2204 elif enabled x86; then
2205
2206     case $cpu in
2207         i[345]86|pentium)
2208             cpuflags="-march=$cpu"
2209             disable mmx
2210         ;;
2211         # targets that do NOT support conditional mov (cmov)
2212         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2213             cpuflags="-march=$cpu"
2214             disable cmov
2215         ;;
2216         # targets that do support conditional mov (cmov)
2217         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2218             cpuflags="-march=$cpu"
2219             enable cmov
2220             enable fast_cmov
2221         ;;
2222         # targets that do support conditional mov but on which it's slow
2223         pentium4|pentium4m|prescott|nocona)
2224             cpuflags="-march=$cpu"
2225             enable cmov
2226             disable fast_cmov
2227         ;;
2228     esac
2229
2230 elif enabled sparc; then
2231
2232     case $cpu in
2233         niagara)
2234             cpuflags="-mcpu=$cpu"
2235             disable vis
2236         ;;
2237         sparc64)
2238             cpuflags="-mcpu=v9"
2239         ;;
2240     esac
2241
2242 elif enabled arm; then
2243
2244     case $cpu in
2245         armv*)
2246             cpuflags="-march=$cpu"
2247             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2248         ;;
2249         *)
2250             cpuflags="-mcpu=$cpu"
2251             case $cpu in
2252                 cortex-a*)                               subarch=armv7a  ;;
2253                 cortex-r*)                               subarch=armv7r  ;;
2254                 cortex-m*)                               subarch=armv7m  ;;
2255                 arm11*)                                  subarch=armv6   ;;
2256                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2257                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2258             esac
2259         ;;
2260     esac
2261
2262 elif enabled alpha; then
2263
2264     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2265
2266 elif enabled bfin; then
2267
2268     cpuflags="-mcpu=$cpu"
2269
2270 elif enabled mips; then
2271
2272     cpuflags="-march=$cpu"
2273
2274 elif enabled avr32; then
2275
2276     case $cpu in
2277         ap7[02]0[0-2])
2278             subarch="avr32_ap"
2279             cpuflags="-mpart=$cpu"
2280         ;;
2281         ap)
2282             subarch="avr32_ap"
2283             cpuflags="-march=$cpu"
2284         ;;
2285         uc3[ab]*)
2286             subarch="avr32_uc"
2287             cpuflags="-mcpu=$cpu"
2288         ;;
2289         uc)
2290             subarch="avr32_uc"
2291             cpuflags="-march=$cpu"
2292         ;;
2293     esac
2294
2295 fi
2296
2297 add_cflags $cpuflags
2298 add_asflags $cpuflags
2299
2300 # compiler sanity check
2301 check_exec <<EOF
2302 int main(void){ return 0; }
2303 EOF
2304 if test "$?" != 0; then
2305     echo "$cc is unable to create an executable file."
2306     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2307         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2308         echo "Only do this if you know what cross compiling means."
2309     fi
2310     die "C compiler test failed."
2311 fi
2312
2313 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2314 check_cflags -std=c99
2315 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2316 #include <stdlib.h>
2317 EOF
2318 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2319 #include <stdlib.h>
2320 EOF
2321
2322 check_host_cflags -std=c99
2323
2324 case "$arch" in
2325     alpha|ia64|mips|parisc|sparc)
2326         spic=$shared
2327     ;;
2328     x86)
2329         subarch="x86_32"
2330         check_cc <<EOF && subarch="x86_64"
2331         int test[(int)sizeof(char*) - 7];
2332 EOF
2333         if test "$subarch" = "x86_64"; then
2334             spic=$shared
2335         fi
2336     ;;
2337 esac
2338
2339 enable $subarch
2340 enabled spic && enable pic
2341
2342 # OS specific
2343 case $target_os in
2344     haiku)
2345         prefix_default="/boot/common"
2346         network_extralibs="-lnetwork"
2347         host_libs=
2348         ;;
2349     sunos)
2350         FFSERVERLDFLAGS=""
2351         SHFLAGS='-shared -Wl,-h,$$(@F)'
2352         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2353         network_extralibs="-lsocket -lnsl"
2354         add_cppflags -D__EXTENSIONS__
2355         nm_opts='-P -g'
2356         ;;
2357     netbsd)
2358         disable symver
2359         oss_indev_extralibs="-lossaudio"
2360         oss_outdev_extralibs="-lossaudio"
2361         add_cppflags -D_XOPEN_SOURCE=600
2362         ;;
2363     openbsd)
2364         enable malloc_aligned
2365         # On OpenBSD 4.5. the compiler does not use PIC unless
2366         # explicitly using -fPIC. Libav builds fine without PIC,
2367         # however the generated executable will not do anything
2368         # (simply quits with exit-code 1, no crash, no output).
2369         # Thus explicitly enable PIC here.
2370         enable pic
2371         disable symver
2372         SHFLAGS='-shared'
2373         oss_indev_extralibs="-lossaudio"
2374         oss_outdev_extralibs="-lossaudio"
2375         ;;
2376     dragonfly)
2377         enable malloc_aligned
2378         disable symver
2379         ;;
2380     freebsd)
2381         enable malloc_aligned
2382         ;;
2383     bsd/os)
2384         add_extralibs -lpoll -lgnugetopt
2385         ;;
2386     darwin)
2387         enable malloc_aligned
2388         gas="gas-preprocessor.pl $cc"
2389         enabled ppc && add_asflags -force_cpusubtype_ALL
2390         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2391         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2392         add_ldflags -Wl,-dynamic,-search_paths_first
2393         SLIBSUF=".dylib"
2394         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2395         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2396         FFSERVERLDFLAGS=-Wl,-bind_at_load
2397         objformat="macho"
2398         enabled x86_64 && objformat="macho64"
2399         enabled_any pic shared ||
2400             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2401         ;;
2402     mingw32*)
2403         if test $target_os = "mingw32ce"; then
2404             disable network
2405         else
2406             target_os=mingw32
2407         fi
2408         LIBTARGET=i386
2409         if enabled x86_64; then
2410             enable malloc_aligned
2411             LIBTARGET="i386:x86-64"
2412         elif enabled arm; then
2413             LIBTARGET=arm-wince
2414         fi
2415         shlibdir_default="$bindir_default"
2416         SLIBPREF=""
2417         SLIBSUF=".dll"
2418         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2419         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2420         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2421         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2422             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2423             install -d "$(LIBDIR)"; \
2424             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2425         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2426         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'
2427         objformat="win32"
2428         dlltool="${cross_prefix}dlltool"
2429         enable dos_paths
2430         check_cflags -fno-common
2431         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2432                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2433                 die "ERROR: MinGW runtime version must be >= 3.15."
2434         add_cppflags -U__STRICT_ANSI__
2435         ;;
2436     cygwin*)
2437         target_os=cygwin
2438         shlibdir_default="$bindir_default"
2439         SLIBPREF="cyg"
2440         SLIBSUF=".dll"
2441         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2442         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2443         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2444         objformat="win32"
2445         enable dos_paths
2446         check_cflags -fno-common
2447         ;;
2448     *-dos|freedos|opendos)
2449         network_extralibs="-lsocket"
2450         objformat="coff"
2451         enable dos_paths
2452         ;;
2453     linux)
2454         enable dv1394
2455         ;;
2456     irix*)
2457         target_os=irix
2458         ranlib="echo ignoring ranlib"
2459         ;;
2460     os/2*)
2461         ln_s="cp -f"
2462         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2463         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2464         FFSERVERLDFLAGS=""
2465         LIBSUF="_s.a"
2466         SLIBPREF=""
2467         SLIBSUF=".dll"
2468         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2469         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2470         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2471           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2472           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2473           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2474           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2475           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2476         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2477           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2478         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2479         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2480         enable dos_paths
2481         ;;
2482     gnu/kfreebsd)
2483         ;;
2484     gnu)
2485         ;;
2486     qnx)
2487         add_cppflags -D_QNX_SOURCE
2488         network_extralibs="-lsocket"
2489         ;;
2490     symbian)
2491         SLIBSUF=".dll"
2492         enable dos_paths
2493         add_cflags --include=$sysinclude/gcce/gcce.h
2494         ;;
2495     none)
2496         ;;
2497     *)
2498         die "Unknown OS '$target_os'."
2499         ;;
2500 esac
2501
2502 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2503
2504 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2505
2506 set_default $PATHS_LIST
2507
2508 # we need to build at least one lib type
2509 if ! enabled_any static shared; then
2510     cat <<EOF
2511 At least one library type must be built.
2512 Specify --enable-static to build the static libraries or --enable-shared to
2513 build the shared libraries as well. To only build the shared libraries specify
2514 --disable-static in addition to --enable-shared.
2515 EOF
2516     exit 1;
2517 fi
2518
2519 disabled static && LIBNAME=""
2520
2521 die_license_disabled() {
2522     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2523 }
2524
2525 die_license_disabled gpl libx264
2526 die_license_disabled gpl libxavs
2527 die_license_disabled gpl libxvid
2528 die_license_disabled gpl postproc
2529 die_license_disabled gpl x11grab
2530
2531 die_license_disabled nonfree libfaac
2532
2533 die_license_disabled version3 libopencore_amrnb
2534 die_license_disabled version3 libopencore_amrwb
2535 die_license_disabled version3 libvo_aacenc
2536 die_license_disabled version3 libvo_amrwbenc
2537
2538 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2539
2540 disabled optimizations || check_cflags -fomit-frame-pointer
2541
2542 enable_pic() {
2543     enable pic
2544     add_cppflags -DPIC
2545     add_cflags   -fPIC
2546     add_asflags  -fPIC
2547 }
2548
2549 enabled pic && enable_pic
2550
2551 check_cc <<EOF || die "Symbol mangling check failed."
2552 int ff_extern;
2553 EOF
2554 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2555 extern_prefix=${sym%%ff_extern*}
2556
2557 check_cc <<EOF && enable inline_asm
2558 void foo(void) { __asm__ volatile ("" ::); }
2559 EOF
2560
2561 _restrict=
2562 for restrict_keyword in restrict __restrict__ __restrict; do
2563     check_cc <<EOF && _restrict=$restrict_keyword && break
2564 void foo(char * $restrict_keyword p);
2565 EOF
2566 done
2567
2568 check_cc <<EOF && enable attribute_packed
2569 struct { int x; } __attribute__((packed)) x;
2570 EOF
2571
2572 check_cc <<EOF && enable attribute_may_alias
2573 union { int x; } __attribute__((may_alias)) x;
2574 EOF
2575
2576 check_cc <<EOF || die "endian test failed"
2577 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2578 EOF
2579 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2580
2581 if enabled alpha; then
2582
2583     check_cflags -mieee
2584
2585 elif enabled arm; then
2586
2587     check_cflags -marm
2588     nogas=die
2589
2590     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2591         enable vfp_args
2592     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2593         case "${cross_prefix:-$cc}" in
2594             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2595             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2596 __asm__ (".eabi_attribute 28, 1");
2597 int main(void) { return 0; }
2598 EOF
2599         esac
2600         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2601     fi
2602
2603     # We have to check if pld is a nop and disable it.
2604     check_asm pld '"pld [r0]"'
2605
2606     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2607     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2608     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2609     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2610     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2611     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2612
2613     enabled_all armv6t2 shared !pic && enable_pic
2614
2615 elif enabled mips; then
2616
2617     check_asm loongson '"dmult.g $1, $2, $3"'
2618     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2619
2620 elif enabled ppc; then
2621
2622     enable local_aligned_8 local_aligned_16
2623
2624     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2625     check_asm ibm_asm   '"add 0, 0, 0"'
2626     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2627     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2628
2629     # AltiVec flags: The FSF version of GCC differs from the Apple version
2630     if enabled altivec; then
2631         nogas=warn
2632         check_cflags -maltivec -mabi=altivec &&
2633         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2634         check_cflags -faltivec
2635
2636         # check if our compiler supports Motorola AltiVec C API
2637         check_cc <<EOF || disable altivec
2638 $inc_altivec_h
2639 int main(void) {
2640     vector signed int v1, v2, v3;
2641     v1 = vec_add(v2,v3);
2642     return 0;
2643 }
2644 EOF
2645
2646         # check if our compiler supports braces for vector declarations
2647         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2648 $inc_altivec_h
2649 int main (void) { (vector int) {1}; return 0; }
2650 EOF
2651     fi
2652
2653 elif enabled sparc; then
2654
2655     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2656         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2657
2658 elif enabled x86; then
2659
2660     enable local_aligned_8 local_aligned_16
2661
2662     # check whether EBP is available on x86
2663     # As 'i' is stored on the stack, this program will crash
2664     # if the base pointer is used to access it because the
2665     # base pointer is cleared in the inline assembly code.
2666     check_exec_crash <<EOF && enable ebp_available
2667     volatile int i=0;
2668     __asm__ volatile (
2669         "xorl %%ebp, %%ebp"
2670     ::: "%ebp");
2671     return i;
2672 EOF
2673
2674     # check whether EBX is available on x86
2675     check_asm ebx_available '""::"b"(0)' &&
2676         check_asm ebx_available '"":::"%ebx"'
2677
2678     # check whether xmm clobbers are supported
2679     check_asm xmm_clobbers '"":::"%xmm0"'
2680
2681     # check whether more than 10 operands are supported
2682     check_cc <<EOF && enable ten_operands
2683 int main(void) {
2684     int x=0;
2685     __asm__ volatile(
2686         ""
2687         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2688     );
2689     return 0;
2690 }
2691 EOF
2692
2693     # check whether binutils is new enough to compile SSSE3/MMX2
2694     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2695     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2696
2697     check_asm bswap '"bswap %%eax" ::: "%eax"'
2698
2699     if ! disabled_any asm mmx yasm; then
2700         if check_cmd $yasmexe --version; then
2701             enabled x86_64 && yasm_extra="-m amd64"
2702             yasm_debug="-g dwarf2"
2703         elif check_cmd nasm -v; then
2704             yasmexe=nasm
2705             yasm_debug="-g -F dwarf"
2706             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2707         fi
2708
2709         YASMFLAGS="-f $objformat $yasm_extra"
2710         enabled pic               && append YASMFLAGS "-DPIC"
2711         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2712         case "$objformat" in
2713             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2714         esac
2715
2716         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2717             die "yasm not found, use --disable-yasm for a crippled build"
2718         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2719     fi
2720
2721     case "$cpu" in
2722         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2723             disable fast_clz
2724         ;;
2725     esac
2726
2727 fi
2728
2729 if enabled asm; then
2730     as=${gas:=$as}
2731     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2732         $nogas "GNU assembler not found, install gas-preprocessor"
2733 fi
2734
2735 check_ldflags -Wl,--as-needed
2736
2737 if check_func dlopen; then
2738     ldl=
2739 elif check_func dlopen -ldl; then
2740     ldl=-ldl
2741 fi
2742
2743 if enabled network; then
2744     check_type "sys/types.h sys/socket.h" socklen_t
2745     check_type netdb.h "struct addrinfo"
2746     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2747     check_type netinet/in.h "struct sockaddr_in6"
2748     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2749     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2750     # Prefer arpa/inet.h over winsock2
2751     if check_header arpa/inet.h ; then
2752         check_func closesocket
2753     elif check_header winsock2.h ; then
2754         check_func_headers winsock2.h closesocket -lws2 && \
2755             network_extralibs="-lws2" || \
2756         { check_func_headers winsock2.h closesocket -lws2_32 && \
2757             network_extralibs="-lws2_32"; }
2758         check_type ws2tcpip.h socklen_t
2759         check_type ws2tcpip.h "struct addrinfo"
2760         check_type ws2tcpip.h "struct ipv6_mreq"
2761         check_type ws2tcpip.h "struct sockaddr_in6"
2762         check_type ws2tcpip.h "struct sockaddr_storage"
2763         check_struct winsock2.h "struct sockaddr" sa_len
2764     else
2765         disable network
2766     fi
2767 fi
2768
2769 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2770 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2771
2772 check_func  fcntl
2773 check_func  fork
2774 check_func  getaddrinfo $network_extralibs
2775 check_func  gethrtime
2776 check_func  getrusage
2777 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2778 check_func  inet_aton $network_extralibs
2779 check_func  isatty
2780 check_func  ${malloc_prefix}memalign            && enable memalign
2781 check_func  mkstemp
2782 check_func  mmap
2783 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2784 check_func  setrlimit
2785 check_func  strerror_r
2786 check_func  strtok_r
2787 check_func_headers conio.h kbhit
2788 check_func_headers io.h setmode
2789 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2790 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2791 check_func_headers windows.h GetProcessTimes
2792 check_func_headers windows.h MapViewOfFile
2793 check_func_headers windows.h VirtualAlloc
2794
2795 check_header dlfcn.h
2796 check_header dxva2api.h
2797 check_header malloc.h
2798 check_header poll.h
2799 check_header sys/mman.h
2800 check_header sys/resource.h
2801 check_header sys/select.h
2802 check_header vdpau/vdpau.h
2803 check_header vdpau/vdpau_x11.h
2804 check_header X11/extensions/XvMClib.h
2805
2806 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2807
2808 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2809      enabled_any $need_memalign ; then
2810     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2811 fi
2812
2813 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2814 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2815
2816 # check for some common methods of building with pthread support
2817 # do this before the optional library checks as some of them require pthreads
2818 if ! disabled pthreads && ! enabled w32threads; then
2819     enable pthreads
2820     if check_func pthread_create; then
2821         :
2822     elif check_func pthread_create -pthread; then
2823         add_cflags -pthread
2824         add_extralibs -pthread
2825     elif check_func pthread_create -pthreads; then
2826         add_cflags -pthreads
2827         add_extralibs -pthreads
2828     elif check_func pthread_create -lpthreadGC2; then
2829         add_extralibs -lpthreadGC2
2830     elif ! check_lib pthread.h pthread_create -lpthread; then
2831         disable pthreads
2832     fi
2833 fi
2834
2835 for thread in $THREADS_LIST; do
2836     if enabled $thread; then
2837         test -n "$thread_type" &&
2838             die "ERROR: Only one thread type must be selected." ||
2839             thread_type="$thread"
2840     fi
2841 done
2842
2843 check_lib math.h sin -lm && LIBM="-lm"
2844 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2845
2846 check_mathfunc exp2
2847 check_mathfunc exp2f
2848 check_mathfunc llrint
2849 check_mathfunc llrintf
2850 check_mathfunc log2
2851 check_mathfunc log2f
2852 check_mathfunc lrint
2853 check_mathfunc lrintf
2854 check_mathfunc round
2855 check_mathfunc roundf
2856 check_mathfunc trunc
2857 check_mathfunc truncf
2858
2859 # these are off by default, so fail if requested and not available
2860 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2861 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2862 enabled libdirac   && require_pkg_config dirac                          \
2863     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2864     "dirac_decoder_init dirac_encoder_init"
2865 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2866 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2867 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2868 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2869 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2870 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2871 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2872 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2873 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2874 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2875 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2876 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2877 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2878 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2879 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2880 enabled libvpx     && {
2881     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2882                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2883     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2884                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2885 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2886                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2887                         die "ERROR: libx264 version must be >= 0.99."; }
2888 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2889 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2890 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2891
2892 # libdc1394 check
2893 if enabled libdc1394; then
2894     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2895         enable libdc1394_2; } ||
2896     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2897         enable libdc1394_1; } ||
2898     die "ERROR: No version of libdc1394 found "
2899 fi
2900
2901 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2902     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2903     enable sdl &&
2904     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2905 fi
2906
2907 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2908
2909 check_header linux/fb.h
2910 check_header linux/videodev.h
2911 check_header linux/videodev2.h
2912 check_header sys/videoio.h
2913
2914 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2915 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2916 # w32api 3.12 had it defined wrong
2917 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2918
2919 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2920 { check_header dev/bktr/ioctl_meteor.h &&
2921   check_header dev/bktr/ioctl_bt848.h; } ||
2922 { check_header machine/ioctl_meteor.h &&
2923   check_header machine/ioctl_bt848.h; } ||
2924 { check_header dev/video/meteor/ioctl_meteor.h &&
2925   check_header dev/video/bktr/ioctl_bt848.h; } ||
2926 check_header dev/ic/bt8xx.h
2927
2928 check_header sndio.h
2929 check_header sys/soundcard.h
2930 check_header soundcard.h
2931
2932 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2933
2934 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2935
2936 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2937
2938 enabled x11grab                         &&
2939 check_header X11/Xlib.h                 &&
2940 check_header X11/extensions/XShm.h      &&
2941 check_header X11/extensions/Xfixes.h    &&
2942 check_func XOpenDisplay -lX11           &&
2943 check_func XShmCreateImage -lX11 -lXext &&
2944 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2945
2946 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2947 check_cpp_condition \
2948     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2949     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2950       disable vdpau; }
2951 fi
2952
2953 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2954
2955 # add some useful compiler flags if supported
2956 check_cflags -Wdeclaration-after-statement
2957 check_cflags -Wall
2958 check_cflags -Wno-parentheses
2959 check_cflags -Wno-switch
2960 check_cflags -Wdisabled-optimization
2961 check_cflags -Wpointer-arith
2962 check_cflags -Wredundant-decls
2963 check_cflags -Wno-pointer-sign
2964 check_cflags -Wcast-qual
2965 check_cflags -Wwrite-strings
2966 check_cflags -Wtype-limits
2967 check_cflags -Wundef
2968 check_cflags -Wmissing-prototypes
2969 enabled extra_warnings && check_cflags -Winline
2970
2971 # add some linker flags
2972 check_ldflags -Wl,--warn-common
2973 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'
2974 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2975
2976 echo "X{};" > $TMPV
2977 if test_ldflags -Wl,--version-script,$TMPV; then
2978     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2979     check_cc <<EOF && enable symver_asm_label
2980 void ff_foo(void) __asm__ ("av_foo@VERSION");
2981 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2982 EOF
2983     check_cc <<EOF && enable symver_gnu_asm
2984 __asm__(".symver ff_foo,av_foo@VERSION");
2985 void ff_foo(void) {}
2986 EOF
2987 fi
2988
2989 if enabled small; then
2990     add_cflags $size_cflags
2991     optimizations="small"
2992 elif enabled optimizations; then
2993     add_cflags $speed_cflags
2994 else
2995     add_cflags $noopt_cflags
2996 fi
2997 check_cflags -fno-math-errno
2998 check_cflags -fno-signed-zeros
2999
3000 if enabled icc; then
3001     # Just warnings, no remarks
3002     check_cflags -w1
3003     # -wd: Disable following warnings
3004     # 144, 167, 556: -Wno-pointer-sign
3005     # 1292: attribute "foo" ignored
3006     # 10006: ignoring unknown option -fno-signed-zeros
3007     # 10148: ignoring unknown option -Wno-parentheses
3008     # 10156: ignoring option '-W'; no argument required
3009     check_cflags -wd144,167,556,1292,10006,10148,10156
3010     # 11030: Warning unknown option --as-needed
3011     # 10156: ignoring option '-export'; no argument required
3012     check_ldflags -wd10156,11030
3013     # Allow to compile with optimizations
3014     check_ldflags -march=$cpu
3015     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3016     enable ebp_available
3017     if enabled x86_32; then
3018         test ${icc_version%%.*} -ge 11 && \
3019             check_cflags -falign-stack=maintain-16-byte || \
3020             disable aligned_stack
3021     fi
3022 elif enabled ccc; then
3023     # disable some annoying warnings
3024     add_cflags -msg_disable cvtu32to64
3025     add_cflags -msg_disable embedcomment
3026     add_cflags -msg_disable needconstext
3027     add_cflags -msg_disable nomainieee
3028     add_cflags -msg_disable ptrmismatch1
3029     add_cflags -msg_disable unreachcode
3030 elif enabled gcc; then
3031     check_cflags -fno-tree-vectorize
3032     check_cflags -Werror=implicit-function-declaration
3033     check_cflags -Werror=missing-prototypes
3034 elif enabled llvm_gcc; then
3035     check_cflags -mllvm -stack-alignment=16
3036 elif enabled clang; then
3037     check_cflags -mllvm -stack-alignment=16
3038     check_cflags -Qunused-arguments
3039 elif enabled armcc; then
3040     # 2523: use of inline assembler is deprecated
3041     add_cflags -W${armcc_opt},--diag_suppress=2523
3042     add_cflags -W${armcc_opt},--diag_suppress=1207
3043     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3044     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3045 elif enabled tms470; then
3046     add_cflags -pds=824 -pds=837
3047 elif enabled pathscale; then
3048     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3049 fi
3050
3051 enabled_any $THREADS_LIST      && enable threads
3052
3053 check_deps $CONFIG_LIST       \
3054            $CONFIG_EXTRA      \
3055            $HAVE_LIST         \
3056            $DECODER_LIST      \
3057            $ENCODER_LIST      \
3058            $HWACCEL_LIST      \
3059            $PARSER_LIST       \
3060            $BSF_LIST          \
3061            $DEMUXER_LIST      \
3062            $MUXER_LIST        \
3063            $FILTER_LIST       \
3064            $INDEV_LIST        \
3065            $OUTDEV_LIST       \
3066            $PROTOCOL_LIST     \
3067            $ACODEC_TESTS      \
3068            $VCODEC_TESTS      \
3069            $LAVF_TESTS        \
3070            $LAVFI_TESTS       \
3071            $SEEK_TESTS        \
3072
3073 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3074
3075 echo "install prefix            $prefix"
3076 echo "source path               $source_path"
3077 echo "C compiler                $cc"
3078 echo "ARCH                      $arch ($cpu)"
3079 if test "$build_suffix" != ""; then
3080     echo "build suffix              $build_suffix"
3081 fi
3082 if test "$extra_version" != ""; then
3083     echo "version string suffix     $extra_version"
3084 fi
3085 echo "big-endian                ${bigendian-no}"
3086 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3087 if enabled x86; then
3088     echo "yasm                      ${yasm-no}"
3089     echo "MMX enabled               ${mmx-no}"
3090     echo "MMX2 enabled              ${mmx2-no}"
3091     echo "3DNow! enabled            ${amd3dnow-no}"
3092     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3093     echo "SSE enabled               ${sse-no}"
3094     echo "SSSE3 enabled             ${ssse3-no}"
3095     echo "CMOV enabled              ${cmov-no}"
3096     echo "CMOV is fast              ${fast_cmov-no}"
3097     echo "EBX available             ${ebx_available-no}"
3098     echo "EBP available             ${ebp_available-no}"
3099     echo "10 operands supported     ${ten_operands-no}"
3100 fi
3101 if enabled arm; then
3102     echo "ARMv5TE enabled           ${armv5te-no}"
3103     echo "ARMv6 enabled             ${armv6-no}"
3104     echo "ARMv6T2 enabled           ${armv6t2-no}"
3105     echo "ARM VFP enabled           ${armvfp-no}"
3106     echo "IWMMXT enabled            ${iwmmxt-no}"
3107     echo "NEON enabled              ${neon-no}"
3108 fi
3109 if enabled mips; then
3110     echo "MMI enabled               ${mmi-no}"
3111 fi
3112 if enabled ppc; then
3113     echo "AltiVec enabled           ${altivec-no}"
3114     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3115     echo "dcbzl available           ${dcbzl-no}"
3116 fi
3117 if enabled sparc; then
3118     echo "VIS enabled               ${vis-no}"
3119 fi
3120 echo "debug symbols             ${debug-no}"
3121 echo "optimizations             ${optimizations-no}"
3122 echo "static                    ${static-no}"
3123 echo "shared                    ${shared-no}"
3124 echo "postprocessing support    ${postproc-no}"
3125 echo "new filter support        ${avfilter-no}"
3126 echo "network support           ${network-no}"
3127 echo "threading support         ${thread_type-no}"
3128 echo "SDL support               ${sdl-no}"
3129 echo "Sun medialib support      ${mlib-no}"
3130 echo "AVISynth enabled          ${avisynth-no}"
3131 echo "frei0r enabled            ${frei0r-no}"
3132 echo "libdc1394 support         ${libdc1394-no}"
3133 echo "libdirac enabled          ${libdirac-no}"
3134 echo "libfaac enabled           ${libfaac-no}"
3135 echo "libgsm enabled            ${libgsm-no}"
3136 echo "libmp3lame enabled        ${libmp3lame-no}"
3137 echo "libnut enabled            ${libnut-no}"
3138 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3139 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3140 echo "libopencv support         ${libopencv-no}"
3141 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3142 echo "librtmp enabled           ${librtmp-no}"
3143 echo "libschroedinger enabled   ${libschroedinger-no}"
3144 echo "libspeex enabled          ${libspeex-no}"
3145 echo "libtheora enabled         ${libtheora-no}"
3146 echo "libva enabled             ${vaapi-no}"
3147 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3148 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3149 echo "libvorbis enabled         ${libvorbis-no}"
3150 echo "libvpx enabled            ${libvpx-no}"
3151 echo "libx264 enabled           ${libx264-no}"
3152 echo "libxavs enabled           ${libxavs-no}"
3153 echo "libxvid enabled           ${libxvid-no}"
3154 echo "zlib enabled              ${zlib-no}"
3155 echo "bzlib enabled             ${bzlib-no}"
3156 echo
3157
3158 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3159     echo "Enabled ${type}s:"
3160     eval list=\$$(toupper $type)_LIST
3161     print_enabled '_*' $list | sort | pr -r -3 -t
3162     echo
3163 done
3164
3165 license="LGPL version 2.1 or later"
3166 if enabled nonfree; then
3167     license="nonfree and unredistributable"
3168 elif enabled gplv3; then
3169     license="GPL version 3 or later"
3170 elif enabled lgplv3; then
3171     license="LGPL version 3 or later"
3172 elif enabled gpl; then
3173     license="GPL version 2 or later"
3174 fi
3175
3176 echo "License: $license"
3177
3178 echo "Creating config.mak and config.h..."
3179
3180 # build tree in object directory if source path is different from current one
3181 if enabled source_path_used; then
3182     DIRS="
3183         doc
3184         libavcodec
3185         libavcodec/$arch
3186         libavdevice
3187         libavfilter
3188         libavfilter/$arch
3189         libavformat
3190         libavutil
3191         libavutil/$arch
3192         libpostproc
3193         libswscale
3194         libswscale/$arch
3195         tests
3196         tools
3197     "
3198     FILES="
3199         Makefile
3200         common.mak
3201         subdir.mak
3202         doc/texi2pod.pl
3203         libavcodec/Makefile
3204         libavcodec/${arch}/Makefile
3205         libavdevice/Makefile
3206         libavfilter/Makefile
3207         libavfilter/${arch}/Makefile
3208         libavformat/Makefile
3209         libavutil/Makefile
3210         libpostproc/Makefile
3211         libswscale/Makefile
3212     "
3213     map 'mkdir -p $v' $DIRS;
3214     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3215 fi
3216
3217 config_files="$TMPH config.mak"
3218
3219 cat > config.mak <<EOF
3220 # Automatically generated by configure - do not modify!
3221 ifndef LIBAV_CONFIG_MAK
3222 LIBAV_CONFIG_MAK=1
3223 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3224 prefix=$prefix
3225 LIBDIR=\$(DESTDIR)$libdir
3226 SHLIBDIR=\$(DESTDIR)$shlibdir
3227 INCDIR=\$(DESTDIR)$incdir
3228 BINDIR=\$(DESTDIR)$bindir
3229 DATADIR=\$(DESTDIR)$datadir
3230 MANDIR=\$(DESTDIR)$mandir
3231 SRC_PATH="$source_path"
3232 SRC_PATH_BARE=$source_path
3233 BUILD_ROOT="$PWD"
3234 CC_IDENT=$cc_ident
3235 ARCH=$arch
3236 CC=$cc
3237 AS=$as
3238 LD=$ld
3239 DEPCC=$dep_cc
3240 YASM=$yasmexe
3241 YASMDEP=$yasmexe
3242 AR=$ar
3243 RANLIB=$ranlib
3244 LN_S=$ln_s
3245 CPPFLAGS=$CPPFLAGS
3246 CFLAGS=$CFLAGS
3247 ASFLAGS=$ASFLAGS
3248 CC_O=$CC_O
3249 DLLTOOL=$dlltool
3250 LDFLAGS=$LDFLAGS
3251 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3252 SHFLAGS=$SHFLAGS
3253 YASMFLAGS=$YASMFLAGS
3254 BUILDSUF=$build_suffix
3255 FULLNAME=$FULLNAME
3256 LIBPREF=$LIBPREF
3257 LIBSUF=$LIBSUF
3258 LIBNAME=$LIBNAME
3259 SLIBPREF=$SLIBPREF
3260 SLIBSUF=$SLIBSUF
3261 EXESUF=$EXESUF
3262 EXTRA_VERSION=$extra_version
3263 DEPFLAGS=$DEPFLAGS
3264 CCDEP=$CCDEP
3265 ASDEP=$ASDEP
3266 CC_DEPFLAGS=$CC_DEPFLAGS
3267 AS_DEPFLAGS=$AS_DEPFLAGS
3268 HOSTCC=$host_cc
3269 HOSTCFLAGS=$host_cflags
3270 HOSTEXESUF=$HOSTEXESUF
3271 HOSTLDFLAGS=$host_ldflags
3272 HOSTLIBS=$host_libs
3273 TARGET_EXEC=$target_exec
3274 TARGET_PATH=$target_path
3275 SDL_LIBS=$sdl_libs
3276 SDL_CFLAGS=$sdl_cflags
3277 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3278 EXTRALIBS=$extralibs
3279 INSTALL=install
3280 LIBTARGET=${LIBTARGET}
3281 SLIBNAME=${SLIBNAME}
3282 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3283 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3284 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3285 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3286 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3287 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3288 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3289 EOF
3290
3291 get_version(){
3292     name=$1
3293     file=$source_path/$2
3294     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3295     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3296     lcname=$(tolower $name)
3297     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3298     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3299 }
3300
3301 get_version LIBSWSCALE  libswscale/swscale.h
3302 get_version LIBPOSTPROC libpostproc/postprocess.h
3303 get_version LIBAVCODEC  libavcodec/version.h
3304 get_version LIBAVDEVICE libavdevice/avdevice.h
3305 get_version LIBAVFORMAT libavformat/version.h
3306 get_version LIBAVUTIL   libavutil/avutil.h
3307 get_version LIBAVFILTER libavfilter/avfilter.h
3308
3309 cat > $TMPH <<EOF
3310 /* Automatically generated by configure - do not modify! */
3311 #ifndef LIBAV_CONFIG_H
3312 #define LIBAV_CONFIG_H
3313 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3314 #define LIBAV_LICENSE "$(c_escape $license)"
3315 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3316 #define CC_TYPE "$cc_type"
3317 #define CC_VERSION $cc_version
3318 #define restrict $_restrict
3319 #define EXTERN_PREFIX "${extern_prefix}"
3320 #define EXTERN_ASM ${extern_prefix}
3321 #define SLIBSUF "$SLIBSUF"
3322 EOF
3323
3324 test -n "$malloc_prefix" &&
3325     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3326
3327 if enabled small || disabled optimizations; then
3328     echo "#undef  av_always_inline"  >> $TMPH
3329     if enabled small; then
3330         echo "#define av_always_inline inline"  >> $TMPH
3331     else
3332         echo "#define av_always_inline av_unused"  >> $TMPH
3333     fi
3334 fi
3335
3336 if enabled yasm; then
3337     append config_files $TMPASM
3338     printf '' >$TMPASM
3339 fi
3340
3341 print_config ARCH_   "$config_files" $ARCH_LIST
3342 print_config HAVE_   "$config_files" $HAVE_LIST
3343 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3344                                      $CONFIG_EXTRA      \
3345                                      $DECODER_LIST      \
3346                                      $ENCODER_LIST      \
3347                                      $HWACCEL_LIST      \
3348                                      $PARSER_LIST       \
3349                                      $BSF_LIST          \
3350                                      $DEMUXER_LIST      \
3351                                      $MUXER_LIST        \
3352                                      $FILTER_LIST       \
3353                                      $PROTOCOL_LIST     \
3354                                      $INDEV_LIST        \
3355                                      $OUTDEV_LIST       \
3356
3357 cat >>config.mak <<EOF
3358 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3359 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3360 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3361 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3362 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3363 EOF
3364
3365 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3366 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3367
3368 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3369 cp_if_changed $TMPH config.h
3370 touch .config
3371
3372 enabled yasm && cp_if_changed $TMPASM config.asm
3373
3374 cat > $TMPH <<EOF
3375 /* Generated by ffconf */
3376 #ifndef AVUTIL_AVCONFIG_H
3377 #define AVUTIL_AVCONFIG_H
3378 EOF
3379
3380 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3381
3382 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3383
3384 cp_if_changed $TMPH libavutil/avconfig.h
3385
3386 test -n "$WARNINGS" && printf "\n$WARNINGS"
3387
3388 # build pkg-config files
3389
3390 pkgconfig_generate(){
3391 name=$1
3392 shortname=${name#lib}${build_suffix}
3393 comment=$2
3394 version=$3
3395 libs=$4
3396 requires=$5
3397 enabled ${name#lib} || return 0
3398 cat <<EOF > $name/$name.pc
3399 prefix=$prefix
3400 exec_prefix=\${prefix}
3401 libdir=$libdir
3402 includedir=$incdir
3403
3404 Name: $name
3405 Description: $comment
3406 Version: $version
3407 Requires: $(enabled shared || echo $requires)
3408 Requires.private: $(enabled shared && echo $requires)
3409 Conflicts:
3410 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3411 Libs.private: $(enabled shared && echo $libs)
3412 Cflags: -I\${includedir}
3413 EOF
3414 cat <<EOF > $name/$name-uninstalled.pc
3415 prefix=
3416 exec_prefix=
3417 libdir=\${pcfiledir}
3418 includedir=${source_path}
3419
3420 Name: $name
3421 Description: $comment
3422 Version: $version
3423 Requires: $requires
3424 Conflicts:
3425 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3426 Cflags: -I\${includedir}
3427 EOF
3428 }
3429
3430 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3431 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3432 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3433 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3434 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3435 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3436 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"