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   --disable-postproc       disable libpostproc build
  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   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-frei0r          enable frei0r video filtering
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libopencv       enable video filtering via libopencv [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libfreetype     enable libfreetype [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   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240   --optflags               override optimization-related compiler flags
 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     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvo_aacenc
 944     libvo_amrwbenc
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudiodsp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     thumb
 971     vaapi
 972     vdpau
 973     version3
 974     x11grab
 975     zlib
 976 "
 977
 978 THREADS_LIST='
 979     pthreads
 980     w32threads
 981 '
 982
 983 ARCH_LIST='
 984     alpha
 985     arm
 986     avr32
 987     avr32_ap
 988     avr32_uc
 989     bfin
 990     ia64
 991     m68k
 992     mips
 993     mips64
 994     parisc
 995     ppc
 996     ppc64
 997     s390
 998     sh4
 999     sparc
1000     sparc64
1001     tomi
1002     x86
1003     x86_32
1004     x86_64
1005 '
1006
1007 ARCH_EXT_LIST='
1008     altivec
1009     amd3dnow
1010     amd3dnowext
1011     armv5te
1012     armv6
1013     armv6t2
1014     armvfp
1015     avx
1016     iwmmxt
1017     mmi
1018     mmx
1019     mmx2
1020     neon
1021     ppc4xx
1022     sse
1023     ssse3
1024     vfpv3
1025     vis
1026 '
1027
1028 HAVE_LIST_PUB='
1029     bigendian
1030     fast_unaligned
1031 '
1032
1033 HAVE_LIST="
1034     $ARCH_EXT_LIST
1035     $HAVE_LIST_PUB
1036     $THREADS_LIST
1037     aligned_stack
1038     alsa_asoundlib_h
1039     altivec_h
1040     arpa_inet_h
1041     attribute_may_alias
1042     attribute_packed
1043     bswap
1044     closesocket
1045     cmov
1046     dcbzl
1047     dev_bktr_ioctl_bt848_h
1048     dev_bktr_ioctl_meteor_h
1049     dev_ic_bt8xx_h
1050     dev_video_meteor_ioctl_meteor_h
1051     dev_video_bktr_ioctl_bt848_h
1052     dlfcn_h
1053     dlopen
1054     dos_paths
1055     ebp_available
1056     ebx_available
1057     exp2
1058     exp2f
1059     fast_64bit
1060     fast_clz
1061     fast_cmov
1062     fcntl
1063     fork
1064     getaddrinfo
1065     gethrtime
1066     GetProcessMemoryInfo
1067     GetProcessTimes
1068     getrusage
1069     gnu_as
1070     struct_rusage_ru_maxrss
1071     ibm_asm
1072     inet_aton
1073     inline_asm
1074     isatty
1075     ldbrx
1076     libdc1394_1
1077     libdc1394_2
1078     llrint
1079     llrintf
1080     local_aligned_16
1081     local_aligned_8
1082     localtime_r
1083     log2
1084     log2f
1085     loongson
1086     lrint
1087     lrintf
1088     lzo1x_999_compress
1089     machine_ioctl_bt848_h
1090     machine_ioctl_meteor_h
1091     malloc_h
1092     MapViewOfFile
1093     memalign
1094     mkstemp
1095     mmap
1096     pld
1097     posix_memalign
1098     round
1099     roundf
1100     sdl
1101     sdl_video_size
1102     setmode
1103     sndio_h
1104     socklen_t
1105     soundcard_h
1106     poll_h
1107     setrlimit
1108     strerror_r
1109     strtok_r
1110     struct_addrinfo
1111     struct_ipv6_mreq
1112     struct_sockaddr_in6
1113     struct_sockaddr_sa_len
1114     struct_sockaddr_storage
1115     symver
1116     symver_gnu_asm
1117     symver_asm_label
1118     sys_mman_h
1119     sys_resource_h
1120     sys_select_h
1121     sys_soundcard_h
1122     sys_videoio_h
1123     ten_operands
1124     threads
1125     trunc
1126     truncf
1127     vfp_args
1128     VirtualAlloc
1129     winsock2_h
1130     xform_asm
1131     xmm_clobbers
1132     yasm
1133 "
1134
1135 # options emitted with CONFIG_ prefix but not available on command line
1136 CONFIG_EXTRA="
1137     avutil
1138     gplv3
1139     lgplv3
1140 "
1141
1142 CMDLINE_SELECT="
1143     $ARCH_EXT_LIST
1144     $CONFIG_LIST
1145     $THREADS_LIST
1146     asm
1147     cross_compile
1148     debug
1149     extra_warnings
1150     logging
1151     optimizations
1152     symver
1153     yasm
1154 "
1155
1156 PATHS_LIST='
1157     bindir
1158     datadir
1159     incdir
1160     libdir
1161     mandir
1162     prefix
1163     shlibdir
1164 '
1165
1166 CMDLINE_SET="
1167     $PATHS_LIST
1168     ar
1169     arch
1170     as
1171     build_suffix
1172     cc
1173     cpu
1174     cross_prefix
1175     dep_cc
1176     extra_version
1177     host_cc
1178     host_cflags
1179     host_ldflags
1180     host_libs
1181     host_os
1182     ld
1183     logfile
1184     malloc_prefix
1185     nm
1186     optflags
1187     pkg_config
1188     samples
1189     sysinclude
1190     sysroot
1191     target_exec
1192     target_os
1193     target_path
1194 "
1195
1196 CMDLINE_APPEND="
1197     extra_cflags
1198 "
1199
1200 # code dependency declarations
1201
1202 # architecture extensions
1203
1204 armv5te_deps="arm"
1205 armv6_deps="arm"
1206 armv6t2_deps="arm"
1207 armvfp_deps="arm"
1208 iwmmxt_deps="arm"
1209 neon_deps="arm"
1210 vfpv3_deps="armvfp"
1211
1212 mmi_deps="mips"
1213
1214 altivec_deps="ppc"
1215 ppc4xx_deps="ppc"
1216
1217 vis_deps="sparc"
1218
1219 x86_64_suggest="cmov fast_cmov"
1220 amd3dnow_deps="mmx"
1221 amd3dnowext_deps="amd3dnow"
1222 mmx_deps="x86"
1223 mmx2_deps="mmx"
1224 sse_deps="mmx"
1225 ssse3_deps="sse"
1226 avx_deps="ssse3"
1227
1228 aligned_stack_if_any="ppc x86"
1229 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1230 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1231 fast_unaligned_if_any="armv6 ppc x86"
1232
1233 need_memalign="altivec neon sse"
1234 inline_asm_deps="!tms470"
1235
1236 symver_if_any="symver_asm_label symver_gnu_asm"
1237
1238 # subsystems
1239 dct_select="rdft"
1240 mdct_select="fft"
1241 rdft_select="fft"
1242 mpegaudiodsp_select="dct"
1243
1244 # decoders / encoders / hardware accelerators
1245 aac_decoder_select="mdct sinewin"
1246 aac_encoder_select="mdct sinewin"
1247 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1248 ac3_decoder_select="mdct ac3dsp ac3_parser"
1249 ac3_encoder_select="mdct ac3dsp"
1250 ac3_fixed_encoder_select="mdct ac3dsp"
1251 alac_encoder_select="lpc"
1252 amrnb_decoder_select="lsp"
1253 amrwb_decoder_select="lsp"
1254 atrac1_decoder_select="mdct sinewin"
1255 atrac3_decoder_select="mdct"
1256 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1257 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1258 cavs_decoder_select="golomb"
1259 cook_decoder_select="mdct sinewin"
1260 cscd_decoder_suggest="zlib"
1261 dca_decoder_select="mdct"
1262 dnxhd_encoder_select="aandct"
1263 dxa_decoder_select="zlib"
1264 eac3_decoder_select="ac3_decoder"
1265 eac3_encoder_select="mdct ac3dsp"
1266 eamad_decoder_select="aandct"
1267 eatgq_decoder_select="aandct"
1268 eatqi_decoder_select="aandct"
1269 ffv1_decoder_select="golomb"
1270 flac_decoder_select="golomb"
1271 flac_encoder_select="golomb lpc"
1272 flashsv_decoder_select="zlib"
1273 flashsv_encoder_select="zlib"
1274 flv_decoder_select="h263_decoder"
1275 flv_encoder_select="h263_encoder"
1276 fraps_decoder_select="huffman"
1277 h261_encoder_select="aandct"
1278 h263_decoder_select="h263_parser"
1279 h263_encoder_select="aandct"
1280 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1281 h263i_decoder_select="h263_decoder"
1282 h263p_encoder_select="h263_encoder"
1283 h264_decoder_select="golomb h264dsp h264pred"
1284 h264_dxva2_hwaccel_deps="dxva2api_h"
1285 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1286 h264_vaapi_hwaccel_select="vaapi"
1287 h264_vdpau_decoder_select="vdpau h264_decoder"
1288 imc_decoder_select="fft mdct sinewin"
1289 jpegls_decoder_select="golomb"
1290 jpegls_encoder_select="golomb"
1291 ljpeg_encoder_select="aandct"
1292 loco_decoder_select="golomb"
1293 mjpeg_encoder_select="aandct"
1294 mlp_decoder_select="mlp_parser"
1295 mp1_decoder_select="mpegaudiodsp"
1296 mp2_decoder_select="mpegaudiodsp"
1297 mp3adu_decoder_select="mpegaudiodsp"
1298 mp3_decoder_select="mpegaudiodsp"
1299 mp3on4_decoder_select="mpegaudiodsp"
1300 mp1float_decoder_select="mpegaudiodsp"
1301 mp2float_decoder_select="mpegaudiodsp"
1302 mp3adufloat_decoder_select="mpegaudiodsp"
1303 mp3float_decoder_select="mpegaudiodsp"
1304 mp3on4float_decoder_select="mpegaudiodsp"
1305 mpeg1video_encoder_select="aandct"
1306 mpeg2video_encoder_select="aandct"
1307 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1308 mpeg4_encoder_select="h263_encoder"
1309 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1310 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1311 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1312 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1313 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1314 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1315 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1316 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1317 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1318 msmpeg4v1_decoder_select="h263_decoder"
1319 msmpeg4v1_encoder_select="h263_encoder"
1320 msmpeg4v2_decoder_select="h263_decoder"
1321 msmpeg4v2_encoder_select="h263_encoder"
1322 msmpeg4v3_decoder_select="h263_decoder"
1323 msmpeg4v3_encoder_select="h263_encoder"
1324 nellymoser_decoder_select="mdct sinewin"
1325 nellymoser_encoder_select="mdct sinewin"
1326 png_decoder_select="zlib"
1327 png_encoder_select="zlib"
1328 qcelp_decoder_select="lsp"
1329 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1330 ra_144_encoder_select="lpc"
1331 rv10_decoder_select="h263_decoder"
1332 rv10_encoder_select="h263_encoder"
1333 rv20_decoder_select="h263_decoder"
1334 rv20_encoder_select="h263_encoder"
1335 rv30_decoder_select="golomb h264pred"
1336 rv40_decoder_select="golomb h264pred"
1337 shorten_decoder_select="golomb"
1338 sipr_decoder_select="lsp"
1339 snow_decoder_select="dwt"
1340 snow_encoder_select="aandct dwt"
1341 svq1_encoder_select="aandct"
1342 svq3_decoder_select="golomb h264dsp h264pred"
1343 svq3_decoder_suggest="zlib"
1344 theora_decoder_select="vp3_decoder"
1345 tiff_decoder_suggest="zlib"
1346 tiff_encoder_suggest="zlib"
1347 truehd_decoder_select="mlp_decoder"
1348 tscc_decoder_select="zlib"
1349 twinvq_decoder_select="mdct lsp sinewin"
1350 vc1_decoder_select="h263_decoder"
1351 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1352 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1353 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1354 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1355 vorbis_decoder_select="mdct"
1356 vorbis_encoder_select="mdct"
1357 vp6_decoder_select="huffman"
1358 vp6a_decoder_select="vp6_decoder"
1359 vp6f_decoder_select="vp6_decoder"
1360 vp8_decoder_select="h264pred"
1361 wmapro_decoder_select="mdct sinewin"
1362 wmav1_decoder_select="mdct sinewin"
1363 wmav1_encoder_select="mdct sinewin"
1364 wmav2_decoder_select="mdct sinewin"
1365 wmav2_encoder_select="mdct sinewin"
1366 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1367 wmv1_decoder_select="h263_decoder"
1368 wmv1_encoder_select="h263_encoder"
1369 wmv2_decoder_select="h263_decoder"
1370 wmv2_encoder_select="h263_encoder"
1371 wmv3_decoder_select="vc1_decoder"
1372 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1373 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1374 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1375 zlib_decoder_select="zlib"
1376 zlib_encoder_select="zlib"
1377 zmbv_decoder_select="zlib"
1378 zmbv_encoder_select="zlib"
1379
1380 vaapi_deps="va_va_h"
1381 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1382
1383 # parsers
1384 h264_parser_select="golomb h264dsp h264pred"
1385
1386 # external libraries
1387 libdirac_decoder_deps="libdirac !libschroedinger"
1388 libdirac_encoder_deps="libdirac"
1389 libfaac_encoder_deps="libfaac"
1390 libgsm_decoder_deps="libgsm"
1391 libgsm_encoder_deps="libgsm"
1392 libgsm_ms_decoder_deps="libgsm"
1393 libgsm_ms_encoder_deps="libgsm"
1394 libmp3lame_encoder_deps="libmp3lame"
1395 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1396 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1397 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1398 libopenjpeg_decoder_deps="libopenjpeg"
1399 libschroedinger_decoder_deps="libschroedinger"
1400 libschroedinger_encoder_deps="libschroedinger"
1401 libspeex_decoder_deps="libspeex"
1402 libtheora_encoder_deps="libtheora"
1403 libvo_aacenc_encoder_deps="libvo_aacenc"
1404 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1405 libvorbis_encoder_deps="libvorbis"
1406 libvpx_decoder_deps="libvpx"
1407 libvpx_encoder_deps="libvpx"
1408 libx264_encoder_deps="libx264"
1409 libxavs_encoder_deps="libxavs"
1410 libxvid_encoder_deps="libxvid"
1411
1412 # demuxers / muxers
1413 ac3_demuxer_select="ac3_parser"
1414 asf_stream_muxer_select="asf_muxer"
1415 avisynth_demuxer_deps="avisynth"
1416 dirac_demuxer_select="dirac_parser"
1417 eac3_demuxer_select="ac3_parser"
1418 flac_demuxer_select="flac_parser"
1419 ipod_muxer_select="mov_muxer"
1420 libnut_demuxer_deps="libnut"
1421 libnut_muxer_deps="libnut"
1422 matroska_audio_muxer_select="matroska_muxer"
1423 matroska_demuxer_suggest="zlib bzlib"
1424 mov_demuxer_suggest="zlib"
1425 mp3_demuxer_select="mpegaudio_parser"
1426 mp4_muxer_select="mov_muxer"
1427 mpegtsraw_demuxer_select="mpegts_demuxer"
1428 mxf_d10_muxer_select="mxf_muxer"
1429 ogg_demuxer_select="golomb"
1430 psp_muxer_select="mov_muxer"
1431 rtp_demuxer_select="sdp_demuxer"
1432 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1433 rtsp_demuxer_select="http_protocol rtpdec"
1434 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1435 sap_demuxer_select="sdp_demuxer"
1436 sap_muxer_select="rtp_muxer rtp_protocol"
1437 sdp_demuxer_select="rtpdec"
1438 spdif_muxer_select="aac_parser"
1439 tg2_muxer_select="mov_muxer"
1440 tgp_muxer_select="mov_muxer"
1441 w64_demuxer_deps="wav_demuxer"
1442
1443 # indevs / outdevs
1444 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1445 alsa_outdev_deps="alsa_asoundlib_h"
1446 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1447 dv1394_indev_deps="dv1394 dv_demuxer"
1448 fbdev_indev_deps="linux_fb_h"
1449 jack_indev_deps="jack_jack_h"
1450 libdc1394_indev_deps="libdc1394"
1451 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1452 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1453 sndio_indev_deps="sndio_h"
1454 sndio_outdev_deps="sndio_h"
1455 v4l_indev_deps="linux_videodev_h"
1456 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1457 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1458 vfwcap_indev_extralibs="-lavicap32"
1459 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1460 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1461
1462 # protocols
1463 gopher_protocol_deps="network"
1464 http_protocol_deps="network"
1465 http_protocol_select="tcp_protocol"
1466 mmsh_protocol_select="http_protocol"
1467 mmst_protocol_deps="network"
1468 rtmp_protocol_select="tcp_protocol"
1469 rtp_protocol_select="udp_protocol"
1470 tcp_protocol_deps="network"
1471 udp_protocol_deps="network"
1472
1473 # filters
1474 blackframe_filter_deps="gpl"
1475 cropdetect_filter_deps="gpl"
1476 drawtext_filter_deps="libfreetype"
1477 frei0r_filter_deps="frei0r dlopen strtok_r"
1478 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1479 hqdn3d_filter_deps="gpl"
1480 ocv_filter_deps="libopencv"
1481 scale_filter_deps="swscale"
1482 yadif_filter_deps="gpl"
1483
1484 # libraries
1485 avdevice_deps="avcodec avformat"
1486 avformat_deps="avcodec"
1487 postproc_deps="gpl"
1488
1489 # programs
1490 ffmpeg_deps="avcodec avformat swscale"
1491 ffmpeg_select="buffer_filter"
1492 ffplay_deps="avcodec avformat swscale sdl"
1493 ffplay_select="rdft"
1494 ffprobe_deps="avcodec avformat"
1495 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1496 ffserver_extralibs='$ldl'
1497
1498 doc_deps="texi2html"
1499
1500 # tests
1501
1502 test_deps(){
1503     suf1=$1
1504     suf2=$2
1505     shift 2
1506     for v; do
1507         dep=${v%=*}
1508         tests=${v#*=}
1509         for name in ${tests}; do
1510             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1511         done
1512     done
1513 }
1514
1515 set_ne_test_deps(){
1516     eval ${1}_be_test_deps="bigendian"
1517     eval ${1}_le_test_deps="!bigendian"
1518 }
1519
1520 test_deps _encoder _decoder                                             \
1521     adpcm_g726=g726                                                     \
1522     adpcm_ima_qt                                                        \
1523     adpcm_ima_wav                                                       \
1524     adpcm_ms                                                            \
1525     adpcm_swf                                                           \
1526     adpcm_yamaha=adpcm_yam                                              \
1527     alac                                                                \
1528     asv1                                                                \
1529     asv2                                                                \
1530     bmp                                                                 \
1531     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1532     dvvideo="dv dv50"                                                   \
1533     ffv1                                                                \
1534     flac                                                                \
1535     flashsv                                                             \
1536     flv                                                                 \
1537     gif                                                                 \
1538     h261                                                                \
1539     h263="h263 h263p"                                                   \
1540     huffyuv                                                             \
1541     jpegls                                                              \
1542     mjpeg="jpg mjpeg ljpeg"                                             \
1543     mp2                                                                 \
1544     mpeg1video="mpeg mpeg1b"                                            \
1545     mpeg2video="mpeg2 mpeg2thread"                                      \
1546     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1547     msmpeg4v3=msmpeg4                                                   \
1548     msmpeg4v2                                                           \
1549     pbm=pbmpipe                                                         \
1550     pcx                                                                 \
1551     pgm="pgm pgmpipe"                                                   \
1552     png                                                                 \
1553     ppm="ppm ppmpipe"                                                   \
1554     rawvideo="rgb yuv"                                                  \
1555     roq                                                                 \
1556     rv10                                                                \
1557     rv20                                                                \
1558     sgi                                                                 \
1559     snow="snow snowll"                                                  \
1560     svq1                                                                \
1561     targa=tga                                                           \
1562     tiff                                                                \
1563     wmav1                                                               \
1564     wmav2                                                               \
1565     wmv1                                                                \
1566     wmv2                                                                \
1567
1568 test_deps _muxer _demuxer                                               \
1569     aiff                                                                \
1570     pcm_alaw=alaw                                                       \
1571     asf                                                                 \
1572     au                                                                  \
1573     avi                                                                 \
1574     dv=dv_fmt                                                           \
1575     ffm                                                                 \
1576     flv=flv_fmt                                                         \
1577     gxf                                                                 \
1578     matroska=mkv                                                        \
1579     mmf                                                                 \
1580     mov                                                                 \
1581     pcm_mulaw=mulaw                                                     \
1582     mxf                                                                 \
1583     nut                                                                 \
1584     ogg                                                                 \
1585     rawvideo=pixfmt                                                     \
1586     rm                                                                  \
1587     swf                                                                 \
1588     mpegts=ts                                                           \
1589     voc                                                                 \
1590     wav                                                                 \
1591     yuv4mpegpipe=yuv4mpeg                                               \
1592
1593 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1594 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1595
1596 set_ne_test_deps pixdesc
1597 set_ne_test_deps pixfmts_copy
1598 set_ne_test_deps pixfmts_crop
1599 set_ne_test_deps pixfmts_hflip
1600 set_ne_test_deps pixfmts_null
1601 set_ne_test_deps pixfmts_pad
1602 set_ne_test_deps pixfmts_scale
1603 set_ne_test_deps pixfmts_vflip
1604
1605 # default parameters
1606
1607 logfile="config.log"
1608
1609 # installation paths
1610 prefix_default="/usr/local"
1611 bindir_default='${prefix}/bin'
1612 datadir_default='${prefix}/share/ffmpeg'
1613 incdir_default='${prefix}/include'
1614 libdir_default='${prefix}/lib'
1615 mandir_default='${prefix}/share/man'
1616 shlibdir_default="$libdir_default"
1617
1618 # toolchain
1619 ar_default="ar"
1620 cc_default="gcc"
1621 cc_version=\"unknown\"
1622 host_cc_default="gcc"
1623 ln_s="ln -sf"
1624 nm_default="nm"
1625 objformat="elf"
1626 pkg_config_default=pkg-config
1627 ranlib="ranlib"
1628 yasmexe="yasm"
1629 nogas=":"
1630
1631 nm_opts='-g'
1632
1633 # machine
1634 arch_default=$(uname -m)
1635 cpu="generic"
1636
1637 # OS
1638 target_os_default=$(tolower $(uname -s))
1639 host_os=$target_os_default
1640
1641 # configurable options
1642 enable avcodec
1643 enable avdevice
1644 enable avfilter
1645 enable avformat
1646 enable avutil
1647 enable asm
1648 enable debug
1649 enable doc
1650 enable fastdiv
1651 enable ffmpeg
1652 enable ffplay
1653 enable ffprobe
1654 enable ffserver
1655 enable network
1656 enable optimizations
1657 enable postproc
1658 enable protocols
1659 enable static
1660 enable swscale
1661 enable swscale_alpha
1662
1663 # build settings
1664 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1665 FFSERVERLDFLAGS=-Wl,-E
1666 LIBPREF="lib"
1667 LIBSUF=".a"
1668 FULLNAME='$(NAME)$(BUILDSUF)'
1669 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1670 SLIBPREF="lib"
1671 SLIBSUF=".so"
1672 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1673 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1674 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1675 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1676
1677 CC_O='-o $@'
1678
1679 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1680 host_libs='-lm'
1681
1682 target_path='$(CURDIR)'
1683
1684 # since the object filename is not given with the -MM flag, the compiler
1685 # is only able to print the basename, and we must add the path ourselves
1686 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1687 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1688
1689 # find source path
1690 if test -f configure; then
1691     source_path=.
1692     disable source_path_used
1693 else
1694     source_path=$(cd $(dirname "$0"); pwd)
1695     enable source_path_used
1696     echo "$source_path" | grep -q '[[:blank:]]' &&
1697         die "Out of tree builds are impossible with whitespace in source path."
1698     test -e "$source_path/config.h" &&
1699         die "Out of tree builds are impossible with config.h in source dir."
1700 fi
1701
1702 for v in "$@"; do
1703     r=${v#*=}
1704     l=${v%"$r"}
1705     r=$(sh_quote "$r")
1706     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1707 done
1708
1709 find_things(){
1710     thing=$1
1711     pattern=$2
1712     file=$source_path/$3
1713     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1714 }
1715
1716 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1717 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1718 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1719 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1720 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1721 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1722 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1723 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1724 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1725 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1726 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1727
1728 find_tests(){
1729     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1730 }
1731
1732 ACODEC_TESTS=$(find_tests acodec)
1733 VCODEC_TESTS=$(find_tests vsynth1)
1734 LAVF_TESTS=$(find_tests lavf)
1735 LAVFI_TESTS=$(find_tests lavfi)
1736 SEEK_TESTS=$(find_tests seek seek_)
1737
1738 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1739
1740 for n in $COMPONENT_LIST; do
1741     v=$(toupper ${n%s})_LIST
1742     eval enable \$$v
1743     eval ${n}_if_any="\$$v"
1744 done
1745
1746 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1747
1748 die_unknown(){
1749     echo "Unknown option \"$1\"."
1750     echo "See $0 --help for available options."
1751     exit 1
1752 }
1753
1754 show_list() {
1755     suffix=_$1
1756     shift
1757     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1758     exit 0
1759 }
1760
1761 for opt do
1762     optval="${opt#*=}"
1763     case "$opt" in
1764     --extra-ldflags=*) add_ldflags $optval
1765     ;;
1766     --extra-libs=*) add_extralibs $optval
1767     ;;
1768     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1769     ;;
1770     --enable-debug=*) debuglevel="$optval"
1771     ;;
1772     --disable-everything)
1773     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1774     ;;
1775     --enable-*=*|--disable-*=*)
1776     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1777     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1778     eval list=\$$(toupper $thing)_LIST
1779     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1780     $action $(filter "$name" $list)
1781     ;;
1782     --enable-?*|--disable-?*)
1783     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1784     if is_in $option $COMPONENT_LIST; then
1785         test $action = disable && action=unset
1786         eval $action \$$(toupper ${option%s})_LIST
1787     elif is_in $option $CMDLINE_SELECT; then
1788         $action $option
1789     else
1790         die_unknown $opt
1791     fi
1792     ;;
1793     --list-*)
1794         NAME="${opt#--list-}"
1795         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1796         NAME=${NAME%s}
1797         eval show_list $NAME \$$(toupper $NAME)_LIST
1798     ;;
1799     --help|-h) show_help
1800     ;;
1801     *)
1802     optname="${opt%%=*}"
1803     optname="${optname#--}"
1804     optname=$(echo "$optname" | sed 's/-/_/g')
1805     if is_in $optname $CMDLINE_SET; then
1806         eval $optname='$optval'
1807     elif is_in $optname $CMDLINE_APPEND; then
1808         append $optname "$optval"
1809     else
1810          die_unknown $opt
1811     fi
1812     ;;
1813     esac
1814 done
1815
1816 disabled logging && logfile=/dev/null
1817
1818 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1819 set >> $logfile
1820
1821 test -n "$cross_prefix" && enable cross_compile
1822
1823 if enabled cross_compile; then
1824     test -n "$arch" && test -n "$target_os" ||
1825         die "Must specify target arch and OS when cross-compiling"
1826 fi
1827
1828 set_default arch target_os
1829
1830 ar_default="${cross_prefix}${ar_default}"
1831 cc_default="${cross_prefix}${cc_default}"
1832 nm_default="${cross_prefix}${nm_default}"
1833 pkg_config_default="${cross_prefix}${pkg_config_default}"
1834 ranlib="${cross_prefix}${ranlib}"
1835
1836 sysinclude_default="${sysroot}/usr/include"
1837
1838 set_default cc nm pkg_config sysinclude
1839 enabled cross_compile || host_cc_default=$cc
1840 set_default host_cc
1841
1842 if ! $pkg_config --version >/dev/null 2>&1; then
1843     warn "$pkg_config not found, library detection may fail."
1844     pkg_config=false
1845 fi
1846
1847 exesuf() {
1848     case $1 in
1849         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1850     esac
1851 }
1852
1853 EXESUF=$(exesuf $target_os)
1854 HOSTEXESUF=$(exesuf $host_os)
1855
1856 # set temporary file name
1857 : ${TMPDIR:=$TEMPDIR}
1858 : ${TMPDIR:=$TMP}
1859 : ${TMPDIR:=/tmp}
1860
1861 if ! check_cmd mktemp -u XXXXXX; then
1862     # simple replacement for missing mktemp
1863     # NOT SAFE FOR GENERAL USE
1864     mktemp(){
1865         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1866     }
1867 fi
1868
1869 tmpfile(){
1870     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1871         (set -C; exec > $tmp) 2>/dev/null ||
1872         die "Unable to create temporary file in $TMPDIR."
1873     append TMPFILES $tmp
1874     eval $1=$tmp
1875 }
1876
1877 trap 'rm -f -- $TMPFILES' EXIT
1878
1879 tmpfile TMPC  .c
1880 tmpfile TMPE  $EXESUF
1881 tmpfile TMPH  .h
1882 tmpfile TMPO  .o
1883 tmpfile TMPS  .S
1884 tmpfile TMPV  .ver
1885 tmpfile TMPSH .sh
1886 tmpfile TMPASM .asm
1887
1888 unset -f mktemp
1889
1890 chmod +x $TMPE
1891
1892 # make sure we can execute files in $TMPDIR
1893 cat > $TMPSH 2>> $logfile <<EOF
1894 #! /bin/sh
1895 EOF
1896 chmod +x $TMPSH >> $logfile 2>&1
1897 if ! $TMPSH >> $logfile 2>&1; then
1898     cat <<EOF
1899 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1900 variable to another directory and make sure that it is not mounted noexec.
1901 EOF
1902     die "Sanity test failed."
1903 fi
1904
1905 filter_cflags=echo
1906 filter_cppflags=echo
1907 filter_asflags=echo
1908
1909 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1910     cc_type=llvm_gcc
1911     cc_version=__VERSION__
1912     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1913     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1914     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1915     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1916     speed_cflags='-O3'
1917     size_cflags='-Os'
1918 elif $cc -v 2>&1 | grep -qi ^gcc; then
1919     cc_type=gcc
1920     cc_version=__VERSION__
1921     gcc_version=$($cc --version | head -n1)
1922     gcc_basever=$($cc -dumpversion)
1923     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1924     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1925     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1926     if ! $cc -dumpversion | grep -q '^2\.'; then
1927         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1928         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1929     fi
1930     speed_cflags='-O3'
1931     size_cflags='-Os'
1932 elif $cc --version 2>/dev/null | grep -q Intel; then
1933     cc_type=icc
1934     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1935     cc_ident=$($cc --version | head -n1)
1936     icc_version=$($cc -dumpversion)
1937     CC_DEPFLAGS='-MMD'
1938     AS_DEPFLAGS='-MMD'
1939     speed_cflags='-O3'
1940     size_cflags='-Os'
1941     noopt_cflags='-O1'
1942 elif $cc -v 2>&1 | grep -q xlc; then
1943     cc_type=xlc
1944     cc_version="AV_STRINGIFY(__IBMC__)"
1945     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1946     speed_cflags='-O5'
1947     size_cflags='-O5 -qcompact'
1948 elif $cc -V 2>/dev/null | grep -q Compaq; then
1949     cc_type=ccc
1950     cc_version="AV_STRINGIFY(__DECC_VER)"
1951     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1952     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1953     debuglevel=3
1954     add_ldflags -Wl,-z,now # calls to libots crash without this
1955     speed_cflags='-fast'
1956     size_cflags='-O1'
1957 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1958     test -d "$sysroot" || die "No valid sysroot specified."
1959     cc_type=armcc
1960     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1961     cc_ident=$($cc --vsn | head -n1)
1962     armcc_conf="$PWD/armcc.conf"
1963     $cc --arm_linux_configure                 \
1964         --arm_linux_config_file="$armcc_conf" \
1965         --configure_sysroot="$sysroot"        \
1966         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1967         die "Error creating armcc configuration file."
1968     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1969     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1970     as_default="${cross_prefix}gcc"
1971     CC_DEPFLAGS='-MMD'
1972     AS_DEPFLAGS='-MMD'
1973     speed_cflags='-O3'
1974     size_cflags='-Os'
1975     filter_asflags="filter_out -W${armcc_opt}*"
1976 elif $cc -version 2>/dev/null | grep -q TMS470; then
1977     cc_type=tms470
1978     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1979     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1980     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1981     CC_O='-fr=$(@D)'
1982     as_default="${cross_prefix}gcc"
1983     ld_default="${cross_prefix}gcc"
1984     TMPO=$(basename $TMPC .c).o
1985     append TMPFILES $TMPO
1986     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1987     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1988     AS_DEPFLAGS='-MMD'
1989     speed_cflags='-O3 -mf=5'
1990     size_cflags='-O3 -mf=2'
1991     filter_cflags=tms470_flags
1992     tms470_flags(){
1993         for flag; do
1994             case $flag in
1995                 -march=*|-mcpu=*)
1996                     case "${flag#*=}" in
1997                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1998                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1999                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2000                         armv6*|arm11*)          echo -mv=6   ;;
2001                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2002                                                 echo -mv=5e  ;;
2003                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2004                     esac
2005                     ;;
2006                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2007                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2008                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2009                 -msoft-float)   echo --float_support=vfplib       ;;
2010                 -O[0-3]|-mf=*)  echo $flag                        ;;
2011                 -g)             echo -g -mn                       ;;
2012                 -pds=*)         echo $flag                        ;;
2013             esac
2014         done
2015     }
2016 elif $cc -v 2>&1 | grep -q clang; then
2017     cc_type=clang
2018     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2019         cc_version=__clang_version__ || cc_version=__VERSION__
2020     cc_ident=$($cc --version | head -n1)
2021     CC_DEPFLAGS='-MMD'
2022     AS_DEPFLAGS='-MMD'
2023     speed_cflags='-O3'
2024     size_cflags='-Os'
2025 elif $cc -V 2>&1 | grep -q Sun; then
2026     cc_type=suncc
2027     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2028     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2029     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2030     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2031     speed_cflags='-O5'
2032     size_cflags='-O5 -xspace'
2033     filter_cflags=suncc_flags
2034     suncc_flags(){
2035         for flag; do
2036             case $flag in
2037                 -march=*|-mcpu=*)
2038                     case "${flag#*=}" in
2039                         native)                   echo -xtarget=native       ;;
2040                         v9|niagara)               echo -xarch=sparc          ;;
2041                         ultrasparc)               echo -xarch=sparcvis       ;;
2042                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2043                         i586|pentium)             echo -xchip=pentium        ;;
2044                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2045                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2046                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2047                         pentium4*)          echo -xtarget=pentium4           ;;
2048                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2049                         *-sse3)             echo -xarch=sse3                 ;;
2050                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2051                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2052                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2053                         k8|opteron|athlon64|athlon-fx)
2054                                                   echo -xarch=sse2a          ;;
2055                         athlon*)                  echo -xarch=pentium_proa   ;;
2056                     esac
2057                     ;;
2058                 -std=c99)             echo -xc99              ;;
2059                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2060                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2061                 -W*,*)                echo $flag              ;;
2062                 -f*-*|-W*)                                    ;;
2063                 *)                    echo $flag              ;;
2064             esac
2065         done
2066     }
2067 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2068     cc_type=pathscale
2069     cc_version=__PATHSCALE__
2070     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2071     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2072     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2073     speed_cflags='-O2'
2074     size_cflags='-Os'
2075     filter_cflags='filter_out -Wdisabled-optimization'
2076 elif $cc -v 2>&1 | grep -q Open64; then
2077     cc_type=open64
2078     cc_version=__OPEN64__
2079     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2080     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2081     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2082     speed_cflags='-O2'
2083     size_cflags='-Os'
2084     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2085 fi
2086
2087 test -n "$cc_type" && enable $cc_type ||
2088     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2089
2090 : ${as_default:=$cc}
2091 : ${dep_cc_default:=$cc}
2092 : ${ld_default:=$cc}
2093 set_default ar as dep_cc ld
2094
2095 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2096 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2097
2098 add_cflags $extra_cflags
2099 add_asflags $extra_cflags
2100
2101 if test -n "$sysroot"; then
2102     case "$cc_type" in
2103         gcc|llvm_gcc|clang)
2104             add_cppflags --sysroot="$sysroot"
2105             add_ldflags --sysroot="$sysroot"
2106         ;;
2107         tms470)
2108             add_cppflags -I"$sysinclude"
2109             add_ldflags  --sysroot="$sysroot"
2110         ;;
2111     esac
2112 fi
2113
2114 if test "$cpu" = host; then
2115     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2116
2117     case "$cc_type" in
2118         gcc|llvm_gcc)
2119             check_native(){
2120                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2121                 sed -n "/$1=/{
2122                             s/.*$1=\\([^ ]*\\).*/\\1/
2123                             p
2124                             q
2125                         }" $TMPE
2126             }
2127             cpu=$(check_native -march || check_native -mcpu)
2128         ;;
2129     esac
2130
2131     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2132 fi
2133
2134 # Deal with common $arch aliases
2135 case "$arch" in
2136     arm*)
2137         arch="arm"
2138     ;;
2139     mips|mipsel|IP*)
2140         arch="mips"
2141     ;;
2142     mips64*)
2143         arch="mips"
2144         subarch="mips64"
2145     ;;
2146     parisc|hppa)
2147         arch="parisc"
2148     ;;
2149     parisc64|hppa64)
2150         arch="parisc"
2151         subarch="parisc64"
2152     ;;
2153     "Power Macintosh"|ppc|powerpc)
2154         arch="ppc"
2155     ;;
2156     ppc64|powerpc64)
2157         arch="ppc"
2158         subarch="ppc64"
2159     ;;
2160     s390|s390x)
2161         arch="s390"
2162     ;;
2163     sh4|sh)
2164         arch="sh4"
2165     ;;
2166     sun4u|sparc64)
2167         arch="sparc"
2168         subarch="sparc64"
2169     ;;
2170     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2171         arch="x86"
2172     ;;
2173 esac
2174
2175 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2176 enable $arch
2177
2178 # Add processor-specific flags
2179 if test "$cpu" = generic; then
2180     : do nothing
2181 elif enabled ppc; then
2182
2183     case $(tolower $cpu) in
2184         601|ppc601|powerpc601)
2185             cpuflags="-mcpu=601"
2186             disable altivec
2187         ;;
2188         603*|ppc603*|powerpc603*)
2189             cpuflags="-mcpu=603"
2190             disable altivec
2191         ;;
2192         604*|ppc604*|powerpc604*)
2193             cpuflags="-mcpu=604"
2194             disable altivec
2195         ;;
2196         g3|75*|ppc75*|powerpc75*)
2197             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2198             disable altivec
2199         ;;
2200         g4|745*|ppc745*|powerpc745*)
2201             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2202         ;;
2203         74*|ppc74*|powerpc74*)
2204             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2205         ;;
2206         g5|970|ppc970|powerpc970|power4*)
2207             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2208         ;;
2209         cell)
2210             cpuflags="-mcpu=cell"
2211             enable ldbrx
2212         ;;
2213         e500v2)
2214             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2215             disable altivec
2216         ;;
2217         e500)
2218             cpuflags="-mcpu=8540 -mhard-float"
2219             disable altivec
2220         ;;
2221     esac
2222
2223 elif enabled x86; then
2224
2225     case $cpu in
2226         i[345]86|pentium)
2227             cpuflags="-march=$cpu"
2228             disable mmx
2229         ;;
2230         # targets that do NOT support conditional mov (cmov)
2231         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2232             cpuflags="-march=$cpu"
2233             disable cmov
2234         ;;
2235         # targets that do support conditional mov (cmov)
2236         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2237             cpuflags="-march=$cpu"
2238             enable cmov
2239             enable fast_cmov
2240         ;;
2241         # targets that do support conditional mov but on which it's slow
2242         pentium4|pentium4m|prescott|nocona)
2243             cpuflags="-march=$cpu"
2244             enable cmov
2245             disable fast_cmov
2246         ;;
2247     esac
2248
2249 elif enabled sparc; then
2250
2251     case $cpu in
2252         niagara)
2253             cpuflags="-mcpu=$cpu"
2254             disable vis
2255         ;;
2256         sparc64)
2257             cpuflags="-mcpu=v9"
2258         ;;
2259     esac
2260
2261 elif enabled arm; then
2262
2263     case $cpu in
2264         armv*)
2265             cpuflags="-march=$cpu"
2266             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2267         ;;
2268         *)
2269             cpuflags="-mcpu=$cpu"
2270             case $cpu in
2271                 cortex-a*)                               subarch=armv7a  ;;
2272                 cortex-r*)                               subarch=armv7r  ;;
2273                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2274                 arm11*)                                  subarch=armv6   ;;
2275                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2276                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2277             esac
2278         ;;
2279     esac
2280
2281 elif enabled alpha; then
2282
2283     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2284
2285 elif enabled bfin; then
2286
2287     cpuflags="-mcpu=$cpu"
2288
2289 elif enabled mips; then
2290
2291     cpuflags="-march=$cpu"
2292
2293 elif enabled avr32; then
2294
2295     case $cpu in
2296         ap7[02]0[0-2])
2297             subarch="avr32_ap"
2298             cpuflags="-mpart=$cpu"
2299         ;;
2300         ap)
2301             subarch="avr32_ap"
2302             cpuflags="-march=$cpu"
2303         ;;
2304         uc3[ab]*)
2305             subarch="avr32_uc"
2306             cpuflags="-mcpu=$cpu"
2307         ;;
2308         uc)
2309             subarch="avr32_uc"
2310             cpuflags="-march=$cpu"
2311         ;;
2312     esac
2313
2314 fi
2315
2316 add_cflags $cpuflags
2317 add_asflags $cpuflags
2318
2319 # compiler sanity check
2320 check_exec <<EOF
2321 int main(void){ return 0; }
2322 EOF
2323 if test "$?" != 0; then
2324     echo "$cc is unable to create an executable file."
2325     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2326         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2327         echo "Only do this if you know what cross compiling means."
2328     fi
2329     die "C compiler test failed."
2330 fi
2331
2332 add_cppflags -D_ISOC99_SOURCE
2333 check_cflags -std=c99
2334 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2335 #include <stdlib.h>
2336 EOF
2337 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2338 #include <stdlib.h>
2339 EOF
2340
2341 check_host_cflags -std=c99
2342 check_host_cflags -Wall
2343
2344 case "$arch" in
2345     alpha|ia64|mips|parisc|sparc)
2346         spic=$shared
2347     ;;
2348     x86)
2349         subarch="x86_32"
2350         check_cc <<EOF && subarch="x86_64"
2351         int test[(int)sizeof(char*) - 7];
2352 EOF
2353         if test "$subarch" = "x86_64"; then
2354             spic=$shared
2355         fi
2356     ;;
2357 esac
2358
2359 enable $subarch
2360 enabled spic && enable pic
2361
2362 # OS specific
2363 case $target_os in
2364     haiku)
2365         prefix_default="/boot/common"
2366         network_extralibs="-lnetwork"
2367         host_libs=
2368         ;;
2369     sunos)
2370         FFSERVERLDFLAGS=""
2371         SHFLAGS='-shared -Wl,-h,$$(@F)'
2372         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2373         network_extralibs="-lsocket -lnsl"
2374         add_cppflags -D__EXTENSIONS__
2375         nm_opts='-P -g'
2376         ;;
2377     netbsd)
2378         disable symver
2379         oss_indev_extralibs="-lossaudio"
2380         oss_outdev_extralibs="-lossaudio"
2381         ;;
2382     openbsd)
2383         enable malloc_aligned
2384         # On OpenBSD 4.5. the compiler does not use PIC unless
2385         # explicitly using -fPIC. Libav builds fine without PIC,
2386         # however the generated executable will not do anything
2387         # (simply quits with exit-code 1, no crash, no output).
2388         # Thus explicitly enable PIC here.
2389         enable pic
2390         disable symver
2391         SHFLAGS='-shared'
2392         oss_indev_extralibs="-lossaudio"
2393         oss_outdev_extralibs="-lossaudio"
2394         ;;
2395     dragonfly)
2396         enable malloc_aligned
2397         disable symver
2398         ;;
2399     freebsd)
2400         enable malloc_aligned
2401         ;;
2402     bsd/os)
2403         add_extralibs -lpoll -lgnugetopt
2404         ;;
2405     darwin)
2406         enable malloc_aligned
2407         gas="gas-preprocessor.pl $cc"
2408         enabled ppc && add_asflags -force_cpusubtype_ALL
2409         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2410         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2411         add_ldflags -Wl,-dynamic,-search_paths_first
2412         SLIBSUF=".dylib"
2413         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2414         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2415         FFSERVERLDFLAGS=-Wl,-bind_at_load
2416         objformat="macho"
2417         enabled x86_64 && objformat="macho64"
2418         enabled_any pic shared ||
2419             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2420         ;;
2421     mingw32*)
2422         if test $target_os = "mingw32ce"; then
2423             disable network
2424         else
2425             target_os=mingw32
2426         fi
2427         LIBTARGET=i386
2428         if enabled x86_64; then
2429             enable malloc_aligned
2430             LIBTARGET="i386:x86-64"
2431         elif enabled arm; then
2432             LIBTARGET=arm-wince
2433         fi
2434         shlibdir_default="$bindir_default"
2435         SLIBPREF=""
2436         SLIBSUF=".dll"
2437         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2438         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2439         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2440         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2441             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2442             install -d "$(LIBDIR)"; \
2443             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2444         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2445         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'
2446         objformat="win32"
2447         dlltool="${cross_prefix}dlltool"
2448         enable dos_paths
2449         check_cflags -fno-common
2450         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2451                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2452                 die "ERROR: MinGW runtime version must be >= 3.15."
2453         add_cppflags -U__STRICT_ANSI__
2454         ;;
2455     cygwin*)
2456         target_os=cygwin
2457         shlibdir_default="$bindir_default"
2458         SLIBPREF="cyg"
2459         SLIBSUF=".dll"
2460         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2461         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2462         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2463         objformat="win32"
2464         enable dos_paths
2465         check_cflags -fno-common
2466         add_cppflags -U__STRICT_ANSI__
2467         ;;
2468     *-dos|freedos|opendos)
2469         network_extralibs="-lsocket"
2470         objformat="coff"
2471         enable dos_paths
2472         add_cppflags -U__STRICT_ANSI__
2473         ;;
2474     linux)
2475         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2476         enable dv1394
2477         ;;
2478     irix*)
2479         target_os=irix
2480         ranlib="echo ignoring ranlib"
2481         ;;
2482     os/2*)
2483         ln_s="cp -f"
2484         objformat="aout"
2485         add_cppflags -D_GNU_SOURCE
2486         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2487         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2488         FFSERVERLDFLAGS=""
2489         LIBSUF="_s.a"
2490         SLIBPREF=""
2491         SLIBSUF=".dll"
2492         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2493         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2494         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2495           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2496           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2497           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2498           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2499           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2500         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2501           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2502         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2503         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2504         enable dos_paths
2505         ;;
2506     gnu/kfreebsd)
2507         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2508         ;;
2509     gnu)
2510         ;;
2511     qnx)
2512         add_cppflags -D_QNX_SOURCE
2513         network_extralibs="-lsocket"
2514         ;;
2515     symbian)
2516         SLIBSUF=".dll"
2517         enable dos_paths
2518         add_cflags --include=$sysinclude/gcce/gcce.h
2519         ;;
2520     none)
2521         ;;
2522     *)
2523         die "Unknown OS '$target_os'."
2524         ;;
2525 esac
2526
2527 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2528
2529 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2530
2531 set_default $PATHS_LIST
2532
2533 # we need to build at least one lib type
2534 if ! enabled_any static shared; then
2535     cat <<EOF
2536 At least one library type must be built.
2537 Specify --enable-static to build the static libraries or --enable-shared to
2538 build the shared libraries as well. To only build the shared libraries specify
2539 --disable-static in addition to --enable-shared.
2540 EOF
2541     exit 1;
2542 fi
2543
2544 disabled static && LIBNAME=""
2545
2546 die_license_disabled() {
2547     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2548 }
2549
2550 die_license_disabled gpl libx264
2551 die_license_disabled gpl libxavs
2552 die_license_disabled gpl libxvid
2553 die_license_disabled gpl x11grab
2554
2555 die_license_disabled nonfree libfaac
2556
2557 die_license_disabled version3 libopencore_amrnb
2558 die_license_disabled version3 libopencore_amrwb
2559 die_license_disabled version3 libvo_aacenc
2560 die_license_disabled version3 libvo_amrwbenc
2561
2562 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2563
2564 disabled optimizations || check_cflags -fomit-frame-pointer
2565
2566 enable_pic() {
2567     enable pic
2568     add_cppflags -DPIC
2569     add_cflags   -fPIC
2570     add_asflags  -fPIC
2571 }
2572
2573 enabled pic && enable_pic
2574
2575 check_cc <<EOF || die "Symbol mangling check failed."
2576 int ff_extern;
2577 EOF
2578 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2579 extern_prefix=${sym%%ff_extern*}
2580
2581 check_cc <<EOF && enable inline_asm
2582 void foo(void) { __asm__ volatile ("" ::); }
2583 EOF
2584
2585 _restrict=
2586 for restrict_keyword in restrict __restrict__ __restrict; do
2587     check_cc <<EOF && _restrict=$restrict_keyword && break
2588 void foo(char * $restrict_keyword p);
2589 EOF
2590 done
2591
2592 check_cc <<EOF && enable attribute_packed
2593 struct { int x; } __attribute__((packed)) x;
2594 EOF
2595
2596 check_cc <<EOF && enable attribute_may_alias
2597 union { int x; } __attribute__((may_alias)) x;
2598 EOF
2599
2600 check_cc <<EOF || die "endian test failed"
2601 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2602 EOF
2603 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2604
2605 if enabled alpha; then
2606
2607     check_cflags -mieee
2608
2609 elif enabled arm; then
2610
2611     enabled thumb && check_cflags -mthumb || check_cflags -marm
2612     nogas=die
2613
2614     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2615         enable vfp_args
2616     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2617         case "${cross_prefix:-$cc}" in
2618             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2619             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2620 __asm__ (".eabi_attribute 28, 1");
2621 int main(void) { return 0; }
2622 EOF
2623         esac
2624         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2625     fi
2626
2627     # We have to check if pld is a nop and disable it.
2628     check_asm pld '"pld [r0]"'
2629
2630     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2631     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2632     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2633     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2634     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2635     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2636     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2637
2638     enabled_all armv6t2 shared !pic && enable_pic
2639
2640 elif enabled mips; then
2641
2642     check_asm loongson '"dmult.g $1, $2, $3"'
2643     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2644
2645 elif enabled ppc; then
2646
2647     enable local_aligned_8 local_aligned_16
2648
2649     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2650     check_asm ibm_asm   '"add 0, 0, 0"'
2651     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2652     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2653
2654     # AltiVec flags: The FSF version of GCC differs from the Apple version
2655     if enabled altivec; then
2656         nogas=warn
2657         check_cflags -maltivec -mabi=altivec &&
2658         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2659         check_cflags -faltivec
2660
2661         # check if our compiler supports Motorola AltiVec C API
2662         check_cc <<EOF || disable altivec
2663 $inc_altivec_h
2664 int main(void) {
2665     vector signed int v1, v2, v3;
2666     v1 = vec_add(v2,v3);
2667     return 0;
2668 }
2669 EOF
2670
2671         # check if our compiler supports braces for vector declarations
2672         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2673 $inc_altivec_h
2674 int main (void) { (vector int) {1}; return 0; }
2675 EOF
2676     fi
2677
2678 elif enabled sparc; then
2679
2680     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2681         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2682
2683 elif enabled x86; then
2684
2685     enable local_aligned_8 local_aligned_16
2686
2687     # check whether EBP is available on x86
2688     # As 'i' is stored on the stack, this program will crash
2689     # if the base pointer is used to access it because the
2690     # base pointer is cleared in the inline assembly code.
2691     check_exec_crash <<EOF && enable ebp_available
2692     volatile int i=0;
2693     __asm__ volatile (
2694         "xorl %%ebp, %%ebp"
2695     ::: "%ebp");
2696     return i;
2697 EOF
2698
2699     # check whether EBX is available on x86
2700     check_asm ebx_available '""::"b"(0)' &&
2701         check_asm ebx_available '"":::"%ebx"'
2702
2703     # check whether xmm clobbers are supported
2704     check_asm xmm_clobbers '"":::"%xmm0"'
2705
2706     # check whether more than 10 operands are supported
2707     check_cc <<EOF && enable ten_operands
2708 int main(void) {
2709     int x=0;
2710     __asm__ volatile(
2711         ""
2712         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2713     );
2714     return 0;
2715 }
2716 EOF
2717
2718     # check whether binutils is new enough to compile SSSE3/MMX2
2719     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2720     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2721
2722     check_asm bswap '"bswap %%eax" ::: "%eax"'
2723
2724     if ! disabled_any asm mmx yasm; then
2725         if check_cmd $yasmexe --version; then
2726             enabled x86_64 && yasm_extra="-m amd64"
2727             yasm_debug="-g dwarf2"
2728         elif check_cmd nasm -v; then
2729             yasmexe=nasm
2730             yasm_debug="-g -F dwarf"
2731             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2732         fi
2733
2734         YASMFLAGS="-f $objformat $yasm_extra"
2735         enabled pic               && append YASMFLAGS "-DPIC"
2736         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2737         case "$objformat" in
2738             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2739         esac
2740
2741         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2742             die "yasm not found, use --disable-yasm for a crippled build"
2743         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2744     fi
2745
2746     case "$cpu" in
2747         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2748             disable fast_clz
2749         ;;
2750     esac
2751
2752 fi
2753
2754 if enabled asm; then
2755     as=${gas:=$as}
2756     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2757         $nogas "GNU assembler not found, install gas-preprocessor"
2758 fi
2759
2760 check_ldflags -Wl,--as-needed
2761
2762 if check_func dlopen; then
2763     ldl=
2764 elif check_func dlopen -ldl; then
2765     ldl=-ldl
2766 fi
2767
2768 if enabled network; then
2769     check_type "sys/types.h sys/socket.h" socklen_t
2770     check_type netdb.h "struct addrinfo"
2771     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2772     check_type netinet/in.h "struct sockaddr_in6"
2773     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2774     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2775     # Prefer arpa/inet.h over winsock2
2776     if check_header arpa/inet.h ; then
2777         check_func closesocket
2778     elif check_header winsock2.h ; then
2779         check_func_headers winsock2.h closesocket -lws2 && \
2780             network_extralibs="-lws2" || \
2781         { check_func_headers winsock2.h closesocket -lws2_32 && \
2782             network_extralibs="-lws2_32"; }
2783         check_type ws2tcpip.h socklen_t
2784         check_type ws2tcpip.h "struct addrinfo"
2785         check_type ws2tcpip.h "struct ipv6_mreq"
2786         check_type ws2tcpip.h "struct sockaddr_in6"
2787         check_type ws2tcpip.h "struct sockaddr_storage"
2788         check_struct winsock2.h "struct sockaddr" sa_len
2789     else
2790         disable network
2791     fi
2792 fi
2793
2794 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2795 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2796
2797 check_func  fcntl
2798 check_func  fork
2799 check_func  getaddrinfo $network_extralibs
2800 check_func  gethrtime
2801 check_func  getrusage
2802 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2803 check_func  inet_aton $network_extralibs
2804 check_func  isatty
2805 check_func  localtime_r
2806 check_func  ${malloc_prefix}memalign            && enable memalign
2807 check_func  mkstemp
2808 check_func  mmap
2809 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2810 check_func  setrlimit
2811 check_func  strerror_r
2812 check_func  strtok_r
2813 check_func_headers io.h setmode
2814 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2815 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2816 check_func_headers windows.h GetProcessTimes
2817 check_func_headers windows.h MapViewOfFile
2818 check_func_headers windows.h VirtualAlloc
2819
2820 check_header dlfcn.h
2821 check_header dxva2api.h
2822 check_header malloc.h
2823 check_header poll.h
2824 check_header sys/mman.h
2825 check_header sys/resource.h
2826 check_header sys/select.h
2827 check_header vdpau/vdpau.h
2828 check_header vdpau/vdpau_x11.h
2829 check_header X11/extensions/XvMClib.h
2830
2831 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2832
2833 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2834 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2835
2836 # check for some common methods of building with pthread support
2837 # do this before the optional library checks as some of them require pthreads
2838 if ! disabled pthreads && ! enabled w32threads; then
2839     enable pthreads
2840     if check_func pthread_create; then
2841         :
2842     elif check_func pthread_create -pthread; then
2843         add_cflags -pthread
2844         add_extralibs -pthread
2845     elif check_func pthread_create -pthreads; then
2846         add_cflags -pthreads
2847         add_extralibs -pthreads
2848     elif check_func pthread_create -lpthreadGC2; then
2849         add_extralibs -lpthreadGC2
2850     elif ! check_lib pthread.h pthread_create -lpthread; then
2851         disable pthreads
2852     fi
2853 fi
2854
2855 for thread in $THREADS_LIST; do
2856     if enabled $thread; then
2857         test -n "$thread_type" &&
2858             die "ERROR: Only one thread type must be selected." ||
2859             thread_type="$thread"
2860     fi
2861 done
2862
2863 check_lib math.h sin -lm && LIBM="-lm"
2864 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2865
2866 check_mathfunc exp2
2867 check_mathfunc exp2f
2868 check_mathfunc llrint
2869 check_mathfunc llrintf
2870 check_mathfunc log2
2871 check_mathfunc log2f
2872 check_mathfunc lrint
2873 check_mathfunc lrintf
2874 check_mathfunc round
2875 check_mathfunc roundf
2876 check_mathfunc trunc
2877 check_mathfunc truncf
2878
2879 # these are off by default, so fail if requested and not available
2880 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2881 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2882 enabled libdirac   && require_pkg_config dirac                          \
2883     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2884     "dirac_decoder_init dirac_encoder_init"
2885 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2886 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2887 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2888 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2889 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2890 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2891 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2892 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2893 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2894 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2895 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2896 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2897 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2898 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2899 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2900 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2901 enabled libvpx     && {
2902     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2903                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2904     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2905                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2906 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2907                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2908                         die "ERROR: libx264 version must be >= 0.115."; }
2909 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2910 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2911 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2912
2913 # libdc1394 check
2914 if enabled libdc1394; then
2915     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2916         enable libdc1394_2; } ||
2917     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2918         enable libdc1394_1; } ||
2919     die "ERROR: No version of libdc1394 found "
2920 fi
2921
2922 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2923     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2924     enable sdl &&
2925     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2926 fi
2927
2928 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2929
2930 check_header linux/fb.h
2931 check_header linux/videodev.h
2932 check_header linux/videodev2.h
2933 check_header sys/videoio.h
2934
2935 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2936 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2937 # w32api 3.12 had it defined wrong
2938 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2939
2940 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2941 { check_header dev/bktr/ioctl_meteor.h &&
2942   check_header dev/bktr/ioctl_bt848.h; } ||
2943 { check_header machine/ioctl_meteor.h &&
2944   check_header machine/ioctl_bt848.h; } ||
2945 { check_header dev/video/meteor/ioctl_meteor.h &&
2946   check_header dev/video/bktr/ioctl_bt848.h; } ||
2947 check_header dev/ic/bt8xx.h
2948
2949 check_header sndio.h
2950 check_header sys/soundcard.h
2951 check_header soundcard.h
2952
2953 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2954
2955 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2956
2957 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2958
2959 enabled x11grab                         &&
2960 check_header X11/Xlib.h                 &&
2961 check_header X11/extensions/XShm.h      &&
2962 check_header X11/extensions/Xfixes.h    &&
2963 check_func XOpenDisplay -lX11           &&
2964 check_func XShmCreateImage -lX11 -lXext &&
2965 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2966
2967 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2968 check_cpp_condition \
2969     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2970     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2971       disable vdpau; }
2972 fi
2973
2974 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2975
2976 # add some useful compiler flags if supported
2977 check_cflags -Wdeclaration-after-statement
2978 check_cflags -Wall
2979 check_cflags -Wno-parentheses
2980 check_cflags -Wno-switch
2981 check_cflags -Wno-format-zero-length
2982 check_cflags -Wdisabled-optimization
2983 check_cflags -Wpointer-arith
2984 check_cflags -Wredundant-decls
2985 check_cflags -Wno-pointer-sign
2986 check_cflags -Wcast-qual
2987 check_cflags -Wwrite-strings
2988 check_cflags -Wtype-limits
2989 check_cflags -Wundef
2990 check_cflags -Wmissing-prototypes
2991 enabled extra_warnings && check_cflags -Winline
2992
2993 # add some linker flags
2994 check_ldflags -Wl,--warn-common
2995 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
2996 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2997
2998 echo "X{};" > $TMPV
2999 if test_ldflags -Wl,--version-script,$TMPV; then
3000     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3001     check_cc <<EOF && enable symver_asm_label
3002 void ff_foo(void) __asm__ ("av_foo@VERSION");
3003 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3004 EOF
3005     check_cc <<EOF && enable symver_gnu_asm
3006 __asm__(".symver ff_foo,av_foo@VERSION");
3007 void ff_foo(void) {}
3008 EOF
3009 fi
3010
3011 if [ -n "$optflags" ]; then
3012     add_cflags $optflags
3013 elif enabled small; then
3014     add_cflags $size_cflags
3015 elif enabled optimizations; then
3016     add_cflags $speed_cflags
3017 else
3018     add_cflags $noopt_cflags
3019 fi
3020 check_cflags -fno-math-errno
3021 check_cflags -fno-signed-zeros
3022
3023 if enabled icc; then
3024     # Just warnings, no remarks
3025     check_cflags -w1
3026     # -wd: Disable following warnings
3027     # 144, 167, 556: -Wno-pointer-sign
3028     # 1292: attribute "foo" ignored
3029     # 10006: ignoring unknown option -fno-signed-zeros
3030     # 10148: ignoring unknown option -Wno-parentheses
3031     # 10156: ignoring option '-W'; no argument required
3032     check_cflags -wd144,167,556,1292,10006,10148,10156
3033     # 11030: Warning unknown option --as-needed
3034     # 10156: ignoring option '-export'; no argument required
3035     check_ldflags -wd10156,11030
3036     # Allow to compile with optimizations
3037     check_ldflags -march=$cpu
3038     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3039     enable ebp_available
3040     if enabled x86_32; then
3041         test ${icc_version%%.*} -ge 11 && \
3042             check_cflags -falign-stack=maintain-16-byte || \
3043             disable aligned_stack
3044     fi
3045 elif enabled ccc; then
3046     # disable some annoying warnings
3047     add_cflags -msg_disable cvtu32to64
3048     add_cflags -msg_disable embedcomment
3049     add_cflags -msg_disable needconstext
3050     add_cflags -msg_disable nomainieee
3051     add_cflags -msg_disable ptrmismatch1
3052     add_cflags -msg_disable unreachcode
3053 elif enabled gcc; then
3054     check_cflags -fno-tree-vectorize
3055     check_cflags -Werror=implicit-function-declaration
3056     check_cflags -Werror=missing-prototypes
3057 elif enabled llvm_gcc; then
3058     check_cflags -mllvm -stack-alignment=16
3059 elif enabled clang; then
3060     check_cflags -mllvm -stack-alignment=16
3061     check_cflags -Qunused-arguments
3062 elif enabled armcc; then
3063     # 2523: use of inline assembler is deprecated
3064     add_cflags -W${armcc_opt},--diag_suppress=2523
3065     add_cflags -W${armcc_opt},--diag_suppress=1207
3066     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3067     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3068     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3069     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3070 elif enabled tms470; then
3071     add_cflags -pds=824 -pds=837
3072 elif enabled pathscale; then
3073     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3074 fi
3075
3076 enabled_any $THREADS_LIST      && enable threads
3077
3078 check_deps $CONFIG_LIST       \
3079            $CONFIG_EXTRA      \
3080            $HAVE_LIST         \
3081            $DECODER_LIST      \
3082            $ENCODER_LIST      \
3083            $HWACCEL_LIST      \
3084            $PARSER_LIST       \
3085            $BSF_LIST          \
3086            $DEMUXER_LIST      \
3087            $MUXER_LIST        \
3088            $FILTER_LIST       \
3089            $INDEV_LIST        \
3090            $OUTDEV_LIST       \
3091            $PROTOCOL_LIST     \
3092            $ACODEC_TESTS      \
3093            $VCODEC_TESTS      \
3094            $LAVF_TESTS        \
3095            $LAVFI_TESTS       \
3096            $SEEK_TESTS        \
3097
3098 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3099
3100 ! enabled_any memalign posix_memalign malloc_aligned &&
3101     enabled_any $need_memalign && enable memalign_hack
3102
3103 echo "install prefix            $prefix"
3104 echo "source path               $source_path"
3105 echo "C compiler                $cc"
3106 echo "ARCH                      $arch ($cpu)"
3107 if test "$build_suffix" != ""; then
3108     echo "build suffix              $build_suffix"
3109 fi
3110 if test "$extra_version" != ""; then
3111     echo "version string suffix     $extra_version"
3112 fi
3113 echo "big-endian                ${bigendian-no}"
3114 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3115 if enabled x86; then
3116     echo "${yasmexe}                      ${yasm-no}"
3117     echo "MMX enabled               ${mmx-no}"
3118     echo "MMX2 enabled              ${mmx2-no}"
3119     echo "3DNow! enabled            ${amd3dnow-no}"
3120     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3121     echo "SSE enabled               ${sse-no}"
3122     echo "SSSE3 enabled             ${ssse3-no}"
3123     echo "AVX enabled               ${avx-no}"
3124     echo "CMOV enabled              ${cmov-no}"
3125     echo "CMOV is fast              ${fast_cmov-no}"
3126     echo "EBX available             ${ebx_available-no}"
3127     echo "EBP available             ${ebp_available-no}"
3128     echo "10 operands supported     ${ten_operands-no}"
3129 fi
3130 if enabled arm; then
3131     echo "ARMv5TE enabled           ${armv5te-no}"
3132     echo "ARMv6 enabled             ${armv6-no}"
3133     echo "ARMv6T2 enabled           ${armv6t2-no}"
3134     echo "ARM VFP enabled           ${armvfp-no}"
3135     echo "IWMMXT enabled            ${iwmmxt-no}"
3136     echo "NEON enabled              ${neon-no}"
3137 fi
3138 if enabled mips; then
3139     echo "MMI enabled               ${mmi-no}"
3140 fi
3141 if enabled ppc; then
3142     echo "AltiVec enabled           ${altivec-no}"
3143     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3144     echo "dcbzl available           ${dcbzl-no}"
3145 fi
3146 if enabled sparc; then
3147     echo "VIS enabled               ${vis-no}"
3148 fi
3149 echo "debug symbols             ${debug-no}"
3150 echo "optimize for size         ${small-no}"
3151 echo "optimizations             ${optimizations-no}"
3152 echo "static                    ${static-no}"
3153 echo "shared                    ${shared-no}"
3154 echo "postprocessing support    ${postproc-no}"
3155 echo "new filter support        ${avfilter-no}"
3156 echo "network support           ${network-no}"
3157 echo "threading support         ${thread_type-no}"
3158 echo "SDL support               ${sdl-no}"
3159 echo "Sun medialib support      ${mlib-no}"
3160 echo "AVISynth enabled          ${avisynth-no}"
3161 echo "frei0r enabled            ${frei0r-no}"
3162 echo "libdc1394 support         ${libdc1394-no}"
3163 echo "libdirac enabled          ${libdirac-no}"
3164 echo "libfaac enabled           ${libfaac-no}"
3165 echo "libgsm enabled            ${libgsm-no}"
3166 echo "libmp3lame enabled        ${libmp3lame-no}"
3167 echo "libnut enabled            ${libnut-no}"
3168 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3169 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3170 echo "libopencv support         ${libopencv-no}"
3171 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3172 echo "librtmp enabled           ${librtmp-no}"
3173 echo "libschroedinger enabled   ${libschroedinger-no}"
3174 echo "libspeex enabled          ${libspeex-no}"
3175 echo "libtheora enabled         ${libtheora-no}"
3176 echo "libva enabled             ${vaapi-no}"
3177 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3178 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3179 echo "libvorbis enabled         ${libvorbis-no}"
3180 echo "libvpx enabled            ${libvpx-no}"
3181 echo "libx264 enabled           ${libx264-no}"
3182 echo "libxavs enabled           ${libxavs-no}"
3183 echo "libxvid enabled           ${libxvid-no}"
3184 echo "zlib enabled              ${zlib-no}"
3185 echo "bzlib enabled             ${bzlib-no}"
3186 echo
3187
3188 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3189     echo "Enabled ${type}s:"
3190     eval list=\$$(toupper $type)_LIST
3191     print_enabled '_*' $list | sort | pr -r -3 -t
3192     echo
3193 done
3194
3195 license="LGPL version 2.1 or later"
3196 if enabled nonfree; then
3197     license="nonfree and unredistributable"
3198 elif enabled gplv3; then
3199     license="GPL version 3 or later"
3200 elif enabled lgplv3; then
3201     license="LGPL version 3 or later"
3202 elif enabled gpl; then
3203     license="GPL version 2 or later"
3204 fi
3205
3206 echo "License: $license"
3207
3208 echo "Creating config.mak and config.h..."
3209
3210 # build tree in object directory if source path is different from current one
3211 if enabled source_path_used; then
3212     DIRS="
3213         doc
3214         libavcodec
3215         libavcodec/$arch
3216         libavdevice
3217         libavfilter
3218         libavfilter/$arch
3219         libavformat
3220         libavutil
3221         libavutil/$arch
3222         libpostproc
3223         libswscale
3224         libswscale/$arch
3225         tests
3226         tools
3227     "
3228     FILES="
3229         Makefile
3230         common.mak
3231         subdir.mak
3232         doc/Makefile
3233         doc/texi2pod.pl
3234         libavcodec/Makefile
3235         libavcodec/${arch}/Makefile
3236         libavdevice/Makefile
3237         libavfilter/Makefile
3238         libavfilter/${arch}/Makefile
3239         libavformat/Makefile
3240         libavutil/Makefile
3241         libpostproc/Makefile
3242         libswscale/Makefile
3243         tests/Makefile
3244     "
3245     map 'mkdir -p $v' $DIRS;
3246     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3247 fi
3248
3249 config_files="$TMPH config.mak"
3250
3251 cat > config.mak <<EOF
3252 # Automatically generated by configure - do not modify!
3253 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3254 prefix=$prefix
3255 LIBDIR=\$(DESTDIR)$libdir
3256 SHLIBDIR=\$(DESTDIR)$shlibdir
3257 INCDIR=\$(DESTDIR)$incdir
3258 BINDIR=\$(DESTDIR)$bindir
3259 DATADIR=\$(DESTDIR)$datadir
3260 MANDIR=\$(DESTDIR)$mandir
3261 SRC_PATH=$source_path
3262 CC_IDENT=$cc_ident
3263 ARCH=$arch
3264 CC=$cc
3265 AS=$as
3266 LD=$ld
3267 DEPCC=$dep_cc
3268 YASM=$yasmexe
3269 YASMDEP=$yasmexe
3270 AR=$ar
3271 RANLIB=$ranlib
3272 LN_S=$ln_s
3273 CPPFLAGS=$CPPFLAGS
3274 CFLAGS=$CFLAGS
3275 ASFLAGS=$ASFLAGS
3276 CC_O=$CC_O
3277 DLLTOOL=$dlltool
3278 LDFLAGS=$LDFLAGS
3279 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3280 SHFLAGS=$SHFLAGS
3281 YASMFLAGS=$YASMFLAGS
3282 BUILDSUF=$build_suffix
3283 FULLNAME=$FULLNAME
3284 LIBPREF=$LIBPREF
3285 LIBSUF=$LIBSUF
3286 LIBNAME=$LIBNAME
3287 SLIBPREF=$SLIBPREF
3288 SLIBSUF=$SLIBSUF
3289 EXESUF=$EXESUF
3290 EXTRA_VERSION=$extra_version
3291 DEPFLAGS=$DEPFLAGS
3292 CCDEP=$CCDEP
3293 ASDEP=$ASDEP
3294 CC_DEPFLAGS=$CC_DEPFLAGS
3295 AS_DEPFLAGS=$AS_DEPFLAGS
3296 HOSTCC=$host_cc
3297 HOSTCFLAGS=$host_cflags
3298 HOSTEXESUF=$HOSTEXESUF
3299 HOSTLDFLAGS=$host_ldflags
3300 HOSTLIBS=$host_libs
3301 TARGET_EXEC=$target_exec
3302 TARGET_PATH=$target_path
3303 SDL_LIBS=$sdl_libs
3304 SDL_CFLAGS=$sdl_cflags
3305 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3306 EXTRALIBS=$extralibs
3307 INSTALL=install
3308 LIBTARGET=${LIBTARGET}
3309 SLIBNAME=${SLIBNAME}
3310 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3311 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3312 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3313 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3314 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3315 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3316 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3317 EOF
3318
3319 get_version(){
3320     name=$1
3321     file=$source_path/$2
3322     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3323     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3324     lcname=$(tolower $name)
3325     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3326     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3327 }
3328
3329 get_version LIBSWSCALE  libswscale/swscale.h
3330 get_version LIBPOSTPROC libpostproc/postprocess.h
3331 get_version LIBAVCODEC  libavcodec/version.h
3332 get_version LIBAVDEVICE libavdevice/avdevice.h
3333 get_version LIBAVFORMAT libavformat/version.h
3334 get_version LIBAVUTIL   libavutil/avutil.h
3335 get_version LIBAVFILTER libavfilter/avfilter.h
3336
3337 cat > $TMPH <<EOF
3338 /* Automatically generated by configure - do not modify! */
3339 #ifndef LIBAV_CONFIG_H
3340 #define LIBAV_CONFIG_H
3341 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3342 #define LIBAV_LICENSE "$(c_escape $license)"
3343 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3344 #define CC_TYPE "$cc_type"
3345 #define CC_VERSION $cc_version
3346 #define restrict $_restrict
3347 #define EXTERN_PREFIX "${extern_prefix}"
3348 #define EXTERN_ASM ${extern_prefix}
3349 #define SLIBSUF "$SLIBSUF"
3350 EOF
3351
3352 test -n "$malloc_prefix" &&
3353     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3354
3355 if enabled small || disabled optimizations; then
3356     echo "#undef  av_always_inline"  >> $TMPH
3357     if enabled small; then
3358         echo "#define av_always_inline inline"  >> $TMPH
3359     else
3360         echo "#define av_always_inline av_unused"  >> $TMPH
3361     fi
3362 fi
3363
3364 if enabled yasm; then
3365     append config_files $TMPASM
3366     printf '' >$TMPASM
3367 fi
3368
3369 print_config ARCH_   "$config_files" $ARCH_LIST
3370 print_config HAVE_   "$config_files" $HAVE_LIST
3371 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3372                                      $CONFIG_EXTRA      \
3373                                      $DECODER_LIST      \
3374                                      $ENCODER_LIST      \
3375                                      $HWACCEL_LIST      \
3376                                      $PARSER_LIST       \
3377                                      $BSF_LIST          \
3378                                      $DEMUXER_LIST      \
3379                                      $MUXER_LIST        \
3380                                      $FILTER_LIST       \
3381                                      $PROTOCOL_LIST     \
3382                                      $INDEV_LIST        \
3383                                      $OUTDEV_LIST       \
3384
3385 cat >>config.mak <<EOF
3386 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3387 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3388 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3389 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3390 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3391 EOF
3392
3393 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3394
3395 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3396 cp_if_changed $TMPH config.h
3397 touch .config
3398
3399 enabled yasm && cp_if_changed $TMPASM config.asm
3400
3401 cat > $TMPH <<EOF
3402 /* Generated by ffconf */
3403 #ifndef AVUTIL_AVCONFIG_H
3404 #define AVUTIL_AVCONFIG_H
3405 EOF
3406
3407 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3408
3409 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3410
3411 cp_if_changed $TMPH libavutil/avconfig.h
3412
3413 test -n "$WARNINGS" && printf "\n$WARNINGS"
3414
3415 # build pkg-config files
3416
3417 pkgconfig_generate(){
3418 name=$1
3419 shortname=${name#lib}${build_suffix}
3420 comment=$2
3421 version=$3
3422 libs=$4
3423 requires=$5
3424 enabled ${name#lib} || return 0
3425 cat <<EOF > $name/$name.pc
3426 prefix=$prefix
3427 exec_prefix=\${prefix}
3428 libdir=$libdir
3429 includedir=$incdir
3430
3431 Name: $name
3432 Description: $comment
3433 Version: $version
3434 Requires: $(enabled shared || echo $requires)
3435 Requires.private: $(enabled shared && echo $requires)
3436 Conflicts:
3437 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3438 Libs.private: $(enabled shared && echo $libs)
3439 Cflags: -I\${includedir}
3440 EOF
3441 cat <<EOF > $name/$name-uninstalled.pc
3442 prefix=
3443 exec_prefix=
3444 libdir=\${pcfiledir}
3445 includedir=${source_path}
3446
3447 Name: $name
3448 Description: $comment
3449 Version: $version
3450 Requires: $requires
3451 Conflicts:
3452 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3453 Cflags: -I\${includedir}
3454 EOF
3455 }
3456
3457 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3458 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3459 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3460 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3461 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3462 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3463 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"