git.sesse.net Git - ffmpeg/blob - 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   --disable-vdpau          disable 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   --source-path=PATH       path to source code [$source_path]
 195   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 196   --enable-cross-compile   assume a cross-compiler is used
 197   --sysroot=PATH           root of cross-build tree
 198   --sysinclude=PATH        location of cross-build system headers
 199   --target-os=OS           compiler targets OS [$target_os]
 200   --target-exec=CMD        command to run executables on target
 201   --target-path=DIR        path to view of build directory on target
 202   --nm=NM                  use nm tool
 203   --ar=AR                  use archive tool AR [$ar_default]
 204   --as=AS                  use assembler AS [$as_default]
 205   --cc=CC                  use C compiler CC [$cc_default]
 206   --ld=LD                  use linker LD
 207   --host-cc=HOSTCC         use host C compiler HOSTCC
 208   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 209   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 210   --host-libs=HLIBS        use libs HLIBS when linking for host
 211   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 212   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 213   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 214   --extra-version=STRING   version string suffix []
 215   --build-suffix=SUFFIX    library name suffix []
 216   --arch=ARCH              select architecture [$arch]
 217   --cpu=CPU                select the minimum required CPU (affects
 218                            instruction selection, may crash on older CPUs)
 219   --disable-asm            disable all assembler optimizations
 220   --disable-altivec        disable AltiVec optimizations
 221   --disable-amd3dnow       disable 3DNow! optimizations
 222   --disable-amd3dnowext    disable 3DNow! extended optimizations
 223   --disable-mmx            disable MMX optimizations
 224   --disable-mmx2           disable MMX2 optimizations
 225   --disable-sse            disable SSE optimizations
 226   --disable-ssse3          disable SSSE3 optimizations
 227   --disable-avx            disable AVX optimizations
 228   --disable-armv5te        disable armv5te optimizations
 229   --disable-armv6          disable armv6 optimizations
 230   --disable-armv6t2        disable armv6t2 optimizations
 231   --disable-armvfp         disable ARM VFP optimizations
 232   --disable-iwmmxt         disable iwmmxt optimizations
 233   --disable-mmi            disable MMI optimizations
 234   --disable-neon           disable neon optimizations
 235   --disable-vis            disable VIS optimizations
 236   --disable-yasm           disable use of yasm assembler
 237   --enable-pic             build position-independent code
 238   --malloc-prefix=PFX      prefix malloc and related names with PFX
 239   --enable-sram            allow use of on-chip SRAM
 240   --disable-symver         disable symbol versioning
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" &&
 879         echo "$2 is unchanged" ||
 880         cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     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     vaapi
 971     vdpau
 972     version3
 973     x11grab
 974     zlib
 975 "
 976
 977 THREADS_LIST='
 978     pthreads
 979     w32threads
 980 '
 981
 982 ARCH_LIST='
 983     alpha
 984     arm
 985     avr32
 986     avr32_ap
 987     avr32_uc
 988     bfin
 989     ia64
 990     m68k
 991     mips
 992     mips64
 993     parisc
 994     ppc
 995     ppc64
 996     s390
 997     sh4
 998     sparc
 999     sparc64
1000     tomi
1001     x86
1002     x86_32
1003     x86_64
1004 '
1005
1006 ARCH_EXT_LIST='
1007     altivec
1008     amd3dnow
1009     amd3dnowext
1010     armv5te
1011     armv6
1012     armv6t2
1013     armvfp
1014     avx
1015     iwmmxt
1016     mmi
1017     mmx
1018     mmx2
1019     neon
1020     ppc4xx
1021     sse
1022     ssse3
1023     vfpv3
1024     vis
1025 '
1026
1027 HAVE_LIST_PUB='
1028     bigendian
1029     fast_unaligned
1030 '
1031
1032 HAVE_LIST="
1033     $ARCH_EXT_LIST
1034     $HAVE_LIST_PUB
1035     $THREADS_LIST
1036     aligned_stack
1037     alsa_asoundlib_h
1038     altivec_h
1039     arpa_inet_h
1040     attribute_may_alias
1041     attribute_packed
1042     bswap
1043     closesocket
1044     cmov
1045     dcbzl
1046     dev_bktr_ioctl_bt848_h
1047     dev_bktr_ioctl_meteor_h
1048     dev_ic_bt8xx_h
1049     dev_video_meteor_ioctl_meteor_h
1050     dev_video_bktr_ioctl_bt848_h
1051     dlfcn_h
1052     dlopen
1053     dos_paths
1054     ebp_available
1055     ebx_available
1056     exp2
1057     exp2f
1058     fast_64bit
1059     fast_clz
1060     fast_cmov
1061     fcntl
1062     fork
1063     getaddrinfo
1064     gethrtime
1065     GetProcessMemoryInfo
1066     GetProcessTimes
1067     getrusage
1068     gnu_as
1069     struct_rusage_ru_maxrss
1070     ibm_asm
1071     inet_aton
1072     inline_asm
1073     isatty
1074     ldbrx
1075     libdc1394_1
1076     libdc1394_2
1077     llrint
1078     llrintf
1079     local_aligned_16
1080     local_aligned_8
1081     localtime_r
1082     log2
1083     log2f
1084     loongson
1085     lrint
1086     lrintf
1087     lzo1x_999_compress
1088     machine_ioctl_bt848_h
1089     machine_ioctl_meteor_h
1090     malloc_h
1091     MapViewOfFile
1092     memalign
1093     mkstemp
1094     mmap
1095     pld
1096     posix_memalign
1097     round
1098     roundf
1099     sdl
1100     sdl_video_size
1101     setmode
1102     sndio_h
1103     socklen_t
1104     soundcard_h
1105     poll_h
1106     setrlimit
1107     strerror_r
1108     strtok_r
1109     struct_addrinfo
1110     struct_ipv6_mreq
1111     struct_sockaddr_in6
1112     struct_sockaddr_sa_len
1113     struct_sockaddr_storage
1114     symver
1115     symver_gnu_asm
1116     symver_asm_label
1117     sys_mman_h
1118     sys_resource_h
1119     sys_select_h
1120     sys_soundcard_h
1121     sys_videoio_h
1122     ten_operands
1123     threads
1124     trunc
1125     truncf
1126     vfp_args
1127     VirtualAlloc
1128     winsock2_h
1129     xform_asm
1130     xmm_clobbers
1131     yasm
1132 "
1133
1134 # options emitted with CONFIG_ prefix but not available on command line
1135 CONFIG_EXTRA="
1136     avutil
1137     gplv3
1138     lgplv3
1139 "
1140
1141 CMDLINE_SELECT="
1142     $ARCH_EXT_LIST
1143     $CONFIG_LIST
1144     $THREADS_LIST
1145     asm
1146     cross_compile
1147     debug
1148     extra_warnings
1149     logging
1150     optimizations
1151     symver
1152     yasm
1153 "
1154
1155 PATHS_LIST='
1156     bindir
1157     datadir
1158     incdir
1159     libdir
1160     mandir
1161     prefix
1162     shlibdir
1163 '
1164
1165 CMDLINE_SET="
1166     $PATHS_LIST
1167     ar
1168     arch
1169     as
1170     build_suffix
1171     cc
1172     cpu
1173     cross_prefix
1174     dep_cc
1175     extra_version
1176     host_cc
1177     host_cflags
1178     host_ldflags
1179     host_libs
1180     host_os
1181     ld
1182     logfile
1183     malloc_prefix
1184     nm
1185     pkg_config
1186     samples
1187     source_path
1188     sysinclude
1189     sysroot
1190     target_exec
1191     target_os
1192     target_path
1193 "
1194
1195 CMDLINE_APPEND="
1196     extra_cflags
1197 "
1198
1199 # code dependency declarations
1200
1201 # architecture extensions
1202
1203 armv5te_deps="arm"
1204 armv6_deps="arm"
1205 armv6t2_deps="arm"
1206 armvfp_deps="arm"
1207 iwmmxt_deps="arm"
1208 neon_deps="arm"
1209 vfpv3_deps="armvfp"
1210
1211 mmi_deps="mips"
1212
1213 altivec_deps="ppc"
1214 ppc4xx_deps="ppc"
1215
1216 vis_deps="sparc"
1217
1218 x86_64_suggest="cmov fast_cmov"
1219 amd3dnow_deps="mmx"
1220 amd3dnowext_deps="amd3dnow"
1221 mmx_deps="x86"
1222 mmx2_deps="mmx"
1223 sse_deps="mmx"
1224 ssse3_deps="sse"
1225 avx_deps="ssse3"
1226
1227 aligned_stack_if_any="ppc x86"
1228 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1229 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1230 fast_unaligned_if_any="armv6 ppc x86"
1231
1232 need_memalign="altivec neon sse"
1233 inline_asm_deps="!tms470"
1234
1235 symver_if_any="symver_asm_label symver_gnu_asm"
1236
1237 # subsystems
1238 dct_select="rdft"
1239 mdct_select="fft"
1240 rdft_select="fft"
1241 mpegaudiodsp_select="dct"
1242
1243 # decoders / encoders / hardware accelerators
1244 aac_decoder_select="mdct sinewin"
1245 aac_encoder_select="mdct sinewin"
1246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1247 ac3_decoder_select="mdct ac3dsp ac3_parser"
1248 ac3_encoder_select="mdct ac3dsp"
1249 ac3_fixed_encoder_select="mdct ac3dsp"
1250 alac_encoder_select="lpc"
1251 amrnb_decoder_select="lsp"
1252 amrwb_decoder_select="lsp"
1253 atrac1_decoder_select="mdct sinewin"
1254 atrac3_decoder_select="mdct"
1255 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1256 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1257 cavs_decoder_select="golomb"
1258 cook_decoder_select="mdct sinewin"
1259 cscd_decoder_suggest="zlib"
1260 dca_decoder_select="mdct"
1261 dnxhd_encoder_select="aandct"
1262 dxa_decoder_select="zlib"
1263 eac3_decoder_select="ac3_decoder"
1264 eac3_encoder_select="mdct ac3dsp"
1265 eamad_decoder_select="aandct"
1266 eatgq_decoder_select="aandct"
1267 eatqi_decoder_select="aandct"
1268 ffv1_decoder_select="golomb"
1269 flac_decoder_select="golomb"
1270 flac_encoder_select="golomb lpc"
1271 flashsv_decoder_select="zlib"
1272 flashsv_encoder_select="zlib"
1273 flv_decoder_select="h263_decoder"
1274 flv_encoder_select="h263_encoder"
1275 fraps_decoder_select="huffman"
1276 h261_encoder_select="aandct"
1277 h263_decoder_select="h263_parser"
1278 h263_encoder_select="aandct"
1279 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1280 h263i_decoder_select="h263_decoder"
1281 h263p_encoder_select="h263_encoder"
1282 h264_decoder_select="golomb h264dsp h264pred"
1283 h264_dxva2_hwaccel_deps="dxva2api_h"
1284 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1285 h264_vaapi_hwaccel_select="vaapi"
1286 h264_vdpau_decoder_select="vdpau h264_decoder"
1287 imc_decoder_select="fft mdct sinewin"
1288 jpegls_decoder_select="golomb"
1289 jpegls_encoder_select="golomb"
1290 ljpeg_encoder_select="aandct"
1291 loco_decoder_select="golomb"
1292 mjpeg_encoder_select="aandct"
1293 mlp_decoder_select="mlp_parser"
1294 mp1_decoder_select="mpegaudiodsp"
1295 mp2_decoder_select="mpegaudiodsp"
1296 mp3adu_decoder_select="mpegaudiodsp"
1297 mp3_decoder_select="mpegaudiodsp"
1298 mp3on4_decoder_select="mpegaudiodsp"
1299 mp1float_decoder_select="mpegaudiodsp"
1300 mp2float_decoder_select="mpegaudiodsp"
1301 mp3adufloat_decoder_select="mpegaudiodsp"
1302 mp3float_decoder_select="mpegaudiodsp"
1303 mp3on4float_decoder_select="mpegaudiodsp"
1304 mpeg1video_encoder_select="aandct"
1305 mpeg2video_encoder_select="aandct"
1306 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1307 mpeg4_encoder_select="h263_encoder"
1308 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1309 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1310 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1311 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1312 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1313 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1314 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1315 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1316 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1317 msmpeg4v1_decoder_select="h263_decoder"
1318 msmpeg4v1_encoder_select="h263_encoder"
1319 msmpeg4v2_decoder_select="h263_decoder"
1320 msmpeg4v2_encoder_select="h263_encoder"
1321 msmpeg4v3_decoder_select="h263_decoder"
1322 msmpeg4v3_encoder_select="h263_encoder"
1323 nellymoser_decoder_select="mdct sinewin"
1324 nellymoser_encoder_select="mdct sinewin"
1325 png_decoder_select="zlib"
1326 png_encoder_select="zlib"
1327 qcelp_decoder_select="lsp"
1328 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1329 ra_144_encoder_select="lpc"
1330 rv10_decoder_select="h263_decoder"
1331 rv10_encoder_select="h263_encoder"
1332 rv20_decoder_select="h263_decoder"
1333 rv20_encoder_select="h263_encoder"
1334 rv30_decoder_select="golomb h264pred"
1335 rv40_decoder_select="golomb h264pred"
1336 shorten_decoder_select="golomb"
1337 sipr_decoder_select="lsp"
1338 snow_decoder_select="dwt"
1339 snow_encoder_select="aandct dwt"
1340 svq1_encoder_select="aandct"
1341 svq3_decoder_select="golomb h264dsp h264pred"
1342 svq3_decoder_suggest="zlib"
1343 theora_decoder_select="vp3_decoder"
1344 tiff_decoder_suggest="zlib"
1345 tiff_encoder_suggest="zlib"
1346 truehd_decoder_select="mlp_decoder"
1347 tscc_decoder_select="zlib"
1348 twinvq_decoder_select="mdct lsp sinewin"
1349 vc1_decoder_select="h263_decoder"
1350 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1351 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1352 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1353 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1354 vorbis_decoder_select="mdct"
1355 vorbis_encoder_select="mdct"
1356 vp6_decoder_select="huffman"
1357 vp6a_decoder_select="vp6_decoder"
1358 vp6f_decoder_select="vp6_decoder"
1359 vp8_decoder_select="h264pred"
1360 wmapro_decoder_select="mdct sinewin"
1361 wmav1_decoder_select="mdct sinewin"
1362 wmav1_encoder_select="mdct sinewin"
1363 wmav2_decoder_select="mdct sinewin"
1364 wmav2_encoder_select="mdct sinewin"
1365 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1366 wmv1_decoder_select="h263_decoder"
1367 wmv1_encoder_select="h263_encoder"
1368 wmv2_decoder_select="h263_decoder"
1369 wmv2_encoder_select="h263_encoder"
1370 wmv3_decoder_select="vc1_decoder"
1371 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1372 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1373 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1374 zlib_decoder_select="zlib"
1375 zlib_encoder_select="zlib"
1376 zmbv_decoder_select="zlib"
1377 zmbv_encoder_select="zlib"
1378
1379 vaapi_deps="va_va_h"
1380 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1381
1382 # parsers
1383 h264_parser_select="golomb h264dsp h264pred"
1384
1385 # external libraries
1386 libdirac_decoder_deps="libdirac !libschroedinger"
1387 libdirac_encoder_deps="libdirac"
1388 libfaac_encoder_deps="libfaac"
1389 libgsm_decoder_deps="libgsm"
1390 libgsm_encoder_deps="libgsm"
1391 libgsm_ms_decoder_deps="libgsm"
1392 libgsm_ms_encoder_deps="libgsm"
1393 libmp3lame_encoder_deps="libmp3lame"
1394 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1395 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1396 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1397 libopenjpeg_decoder_deps="libopenjpeg"
1398 libschroedinger_decoder_deps="libschroedinger"
1399 libschroedinger_encoder_deps="libschroedinger"
1400 libspeex_decoder_deps="libspeex"
1401 libtheora_encoder_deps="libtheora"
1402 libvo_aacenc_encoder_deps="libvo_aacenc"
1403 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1404 libvorbis_encoder_deps="libvorbis"
1405 libvpx_decoder_deps="libvpx"
1406 libvpx_encoder_deps="libvpx"
1407 libx264_encoder_deps="libx264"
1408 libxavs_encoder_deps="libxavs"
1409 libxvid_encoder_deps="libxvid"
1410
1411 # demuxers / muxers
1412 ac3_demuxer_select="ac3_parser"
1413 asf_stream_muxer_select="asf_muxer"
1414 avisynth_demuxer_deps="avisynth"
1415 dirac_demuxer_select="dirac_parser"
1416 eac3_demuxer_select="ac3_parser"
1417 flac_demuxer_select="flac_parser"
1418 ipod_muxer_select="mov_muxer"
1419 libnut_demuxer_deps="libnut"
1420 libnut_muxer_deps="libnut"
1421 matroska_audio_muxer_select="matroska_muxer"
1422 matroska_demuxer_suggest="zlib bzlib"
1423 mov_demuxer_suggest="zlib"
1424 mp3_demuxer_select="mpegaudio_parser"
1425 mp4_muxer_select="mov_muxer"
1426 mpegtsraw_demuxer_select="mpegts_demuxer"
1427 mxf_d10_muxer_select="mxf_muxer"
1428 ogg_demuxer_select="golomb"
1429 psp_muxer_select="mov_muxer"
1430 rtp_demuxer_select="sdp_demuxer"
1431 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1432 rtsp_demuxer_select="http_protocol rtpdec"
1433 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1434 sap_demuxer_select="sdp_demuxer"
1435 sap_muxer_select="rtp_muxer rtp_protocol"
1436 sdp_demuxer_select="rtpdec"
1437 spdif_muxer_select="aac_parser"
1438 tg2_muxer_select="mov_muxer"
1439 tgp_muxer_select="mov_muxer"
1440 w64_demuxer_deps="wav_demuxer"
1441
1442 # indevs / outdevs
1443 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1444 alsa_outdev_deps="alsa_asoundlib_h"
1445 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1446 dv1394_indev_deps="dv1394 dv_demuxer"
1447 fbdev_indev_deps="linux_fb_h"
1448 jack_indev_deps="jack_jack_h"
1449 libdc1394_indev_deps="libdc1394"
1450 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1451 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1452 sndio_indev_deps="sndio_h"
1453 sndio_outdev_deps="sndio_h"
1454 v4l_indev_deps="linux_videodev_h"
1455 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1456 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1457 vfwcap_indev_extralibs="-lavicap32"
1458 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1459 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1460
1461 # protocols
1462 gopher_protocol_deps="network"
1463 http_protocol_deps="network"
1464 http_protocol_select="tcp_protocol"
1465 mmsh_protocol_select="http_protocol"
1466 mmst_protocol_deps="network"
1467 rtmp_protocol_select="tcp_protocol"
1468 rtp_protocol_select="udp_protocol"
1469 tcp_protocol_deps="network"
1470 udp_protocol_deps="network"
1471
1472 # filters
1473 blackframe_filter_deps="gpl"
1474 cropdetect_filter_deps="gpl"
1475 drawtext_filter_deps="libfreetype"
1476 frei0r_filter_deps="frei0r dlopen strtok_r"
1477 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1478 hqdn3d_filter_deps="gpl"
1479 ocv_filter_deps="libopencv"
1480 scale_filter_deps="swscale"
1481 yadif_filter_deps="gpl"
1482
1483 # libraries
1484 avdevice_deps="avcodec avformat"
1485 avformat_deps="avcodec"
1486 postproc_deps="gpl"
1487
1488 # programs
1489 ffmpeg_deps="avcodec avformat swscale"
1490 ffmpeg_select="buffer_filter"
1491 ffplay_deps="avcodec avformat swscale sdl"
1492 ffplay_select="rdft"
1493 ffprobe_deps="avcodec avformat"
1494 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1495 ffserver_extralibs='$ldl'
1496
1497 doc_deps="texi2html"
1498
1499 # tests
1500
1501 test_deps(){
1502     suf1=$1
1503     suf2=$2
1504     shift 2
1505     for v; do
1506         dep=${v%=*}
1507         tests=${v#*=}
1508         for name in ${tests}; do
1509             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1510         done
1511     done
1512 }
1513
1514 set_ne_test_deps(){
1515     eval ${1}_be_test_deps="bigendian"
1516     eval ${1}_le_test_deps="!bigendian"
1517 }
1518
1519 test_deps _encoder _decoder                                             \
1520     adpcm_g726=g726                                                     \
1521     adpcm_ima_qt                                                        \
1522     adpcm_ima_wav                                                       \
1523     adpcm_ms                                                            \
1524     adpcm_swf                                                           \
1525     adpcm_yamaha=adpcm_yam                                              \
1526     alac                                                                \
1527     asv1                                                                \
1528     asv2                                                                \
1529     bmp                                                                 \
1530     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1531     dvvideo="dv dv50"                                                   \
1532     ffv1                                                                \
1533     flac                                                                \
1534     flashsv                                                             \
1535     flv                                                                 \
1536     gif                                                                 \
1537     h261                                                                \
1538     h263="h263 h263p"                                                   \
1539     huffyuv                                                             \
1540     jpegls                                                              \
1541     mjpeg="jpg mjpeg ljpeg"                                             \
1542     mp2                                                                 \
1543     mpeg1video="mpeg mpeg1b"                                            \
1544     mpeg2video="mpeg2 mpeg2thread"                                      \
1545     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1546     msmpeg4v3=msmpeg4                                                   \
1547     msmpeg4v2                                                           \
1548     pbm=pbmpipe                                                         \
1549     pcx                                                                 \
1550     pgm="pgm pgmpipe"                                                   \
1551     png                                                                 \
1552     ppm="ppm ppmpipe"                                                   \
1553     rawvideo="rgb yuv"                                                  \
1554     roq                                                                 \
1555     rv10                                                                \
1556     rv20                                                                \
1557     sgi                                                                 \
1558     snow="snow snowll"                                                  \
1559     svq1                                                                \
1560     targa=tga                                                           \
1561     tiff                                                                \
1562     wmav1                                                               \
1563     wmav2                                                               \
1564     wmv1                                                                \
1565     wmv2                                                                \
1566
1567 test_deps _muxer _demuxer                                               \
1568     aiff                                                                \
1569     pcm_alaw=alaw                                                       \
1570     asf                                                                 \
1571     au                                                                  \
1572     avi                                                                 \
1573     dv=dv_fmt                                                           \
1574     ffm                                                                 \
1575     flv=flv_fmt                                                         \
1576     gxf                                                                 \
1577     matroska=mkv                                                        \
1578     mmf                                                                 \
1579     mov                                                                 \
1580     pcm_mulaw=mulaw                                                     \
1581     mxf                                                                 \
1582     nut                                                                 \
1583     ogg                                                                 \
1584     rawvideo=pixfmt                                                     \
1585     rm                                                                  \
1586     swf                                                                 \
1587     mpegts=ts                                                           \
1588     voc                                                                 \
1589     wav                                                                 \
1590     yuv4mpegpipe=yuv4mpeg                                               \
1591
1592 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1593 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1594
1595 set_ne_test_deps pixdesc
1596 set_ne_test_deps pixfmts_copy
1597 set_ne_test_deps pixfmts_crop
1598 set_ne_test_deps pixfmts_hflip
1599 set_ne_test_deps pixfmts_null
1600 set_ne_test_deps pixfmts_pad
1601 set_ne_test_deps pixfmts_scale
1602 set_ne_test_deps pixfmts_vflip
1603
1604 # default parameters
1605
1606 logfile="config.log"
1607
1608 # installation paths
1609 prefix_default="/usr/local"
1610 bindir_default='${prefix}/bin'
1611 datadir_default='${prefix}/share/ffmpeg'
1612 incdir_default='${prefix}/include'
1613 libdir_default='${prefix}/lib'
1614 mandir_default='${prefix}/share/man'
1615 shlibdir_default="$libdir_default"
1616
1617 # toolchain
1618 ar_default="ar"
1619 cc_default="gcc"
1620 cc_version=\"unknown\"
1621 host_cc_default="gcc"
1622 ln_s="ln -sf"
1623 nm_default="nm"
1624 objformat="elf"
1625 pkg_config_default=pkg-config
1626 ranlib="ranlib"
1627 yasmexe="yasm"
1628 nogas=":"
1629
1630 nm_opts='-g'
1631
1632 # machine
1633 arch_default=$(uname -m)
1634 cpu="generic"
1635
1636 # OS
1637 target_os_default=$(tolower $(uname -s))
1638 host_os=$target_os_default
1639
1640 # configurable options
1641 enable avcodec
1642 enable avdevice
1643 enable avfilter
1644 enable avformat
1645 enable avutil
1646 enable asm
1647 enable debug
1648 enable doc
1649 enable fastdiv
1650 enable ffmpeg
1651 enable ffplay
1652 enable ffprobe
1653 enable ffserver
1654 enable network
1655 enable optimizations
1656 enable postproc
1657 enable protocols
1658 enable static
1659 enable swscale
1660 enable swscale_alpha
1661
1662 # build settings
1663 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1664 FFSERVERLDFLAGS=-Wl,-E
1665 LIBPREF="lib"
1666 LIBSUF=".a"
1667 FULLNAME='$(NAME)$(BUILDSUF)'
1668 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1669 SLIBPREF="lib"
1670 SLIBSUF=".so"
1671 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1672 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1673 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1674 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1675
1676 CC_O='-o $@'
1677
1678 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1679 host_libs='-lm'
1680
1681 target_path='$(CURDIR)'
1682
1683 # since the object filename is not given with the -MM flag, the compiler
1684 # is only able to print the basename, and we must add the path ourselves
1685 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1686 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1687
1688 # find source path
1689 source_path="$(dirname "$0")"
1690 enable source_path_used
1691 if test -f configure; then
1692     source_path="$(pwd)"
1693     disable source_path_used
1694 else
1695     source_path="$(cd "$source_path"; pwd)"
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 elif $cc -v 2>&1 | grep -q Open64; then
2076     cc_type=open64
2077     cc_version=__OPEN64__
2078     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2079     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2080     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2081     speed_cflags='-O2'
2082     size_cflags='-Os'
2083 fi
2084
2085 test -n "$cc_type" && enable $cc_type ||
2086     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2087
2088 : ${as_default:=$cc}
2089 : ${dep_cc_default:=$cc}
2090 : ${ld_default:=$cc}
2091 set_default ar as dep_cc ld
2092
2093 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2094 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2095
2096 add_cflags $extra_cflags
2097 add_asflags $extra_cflags
2098
2099 if test -n "$sysroot"; then
2100     case "$cc_type" in
2101         gcc|llvm_gcc|clang)
2102             add_cppflags --sysroot="$sysroot"
2103             add_ldflags --sysroot="$sysroot"
2104         ;;
2105         tms470)
2106             add_cppflags -I"$sysinclude"
2107             add_ldflags  --sysroot="$sysroot"
2108         ;;
2109     esac
2110 fi
2111
2112 if test "$cpu" = host; then
2113     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2114
2115     case "$cc_type" in
2116         gcc|llvm_gcc)
2117             check_native(){
2118                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2119                 sed -n "/$1=/{
2120                             s/.*$1=\\([^ ]*\\).*/\\1/
2121                             p
2122                             q
2123                         }" $TMPE
2124             }
2125             cpu=$(check_native -march || check_native -mcpu)
2126         ;;
2127     esac
2128
2129     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2130 fi
2131
2132 # Deal with common $arch aliases
2133 case "$arch" in
2134     arm*)
2135         arch="arm"
2136     ;;
2137     mips|mipsel|IP*)
2138         arch="mips"
2139     ;;
2140     mips64*)
2141         arch="mips"
2142         subarch="mips64"
2143     ;;
2144     parisc|hppa)
2145         arch="parisc"
2146     ;;
2147     parisc64|hppa64)
2148         arch="parisc"
2149         subarch="parisc64"
2150     ;;
2151     "Power Macintosh"|ppc|powerpc)
2152         arch="ppc"
2153     ;;
2154     ppc64|powerpc64)
2155         arch="ppc"
2156         subarch="ppc64"
2157     ;;
2158     s390|s390x)
2159         arch="s390"
2160     ;;
2161     sh4|sh)
2162         arch="sh4"
2163     ;;
2164     sun4u|sparc64)
2165         arch="sparc"
2166         subarch="sparc64"
2167     ;;
2168     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2169         arch="x86"
2170     ;;
2171 esac
2172
2173 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2174 enable $arch
2175
2176 # Add processor-specific flags
2177 if test "$cpu" = generic; then
2178     : do nothing
2179 elif enabled ppc; then
2180
2181     case $(tolower $cpu) in
2182         601|ppc601|powerpc601)
2183             cpuflags="-mcpu=601"
2184             disable altivec
2185         ;;
2186         603*|ppc603*|powerpc603*)
2187             cpuflags="-mcpu=603"
2188             disable altivec
2189         ;;
2190         604*|ppc604*|powerpc604*)
2191             cpuflags="-mcpu=604"
2192             disable altivec
2193         ;;
2194         g3|75*|ppc75*|powerpc75*)
2195             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2196             disable altivec
2197         ;;
2198         g4|745*|ppc745*|powerpc745*)
2199             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2200         ;;
2201         74*|ppc74*|powerpc74*)
2202             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2203         ;;
2204         g5|970|ppc970|powerpc970|power4*)
2205             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2206         ;;
2207         cell)
2208             cpuflags="-mcpu=cell"
2209             enable ldbrx
2210         ;;
2211         e500v2)
2212             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2213             disable altivec
2214         ;;
2215         e500)
2216             cpuflags="-mcpu=8540 -mhard-float"
2217             disable altivec
2218         ;;
2219     esac
2220
2221 elif enabled x86; then
2222
2223     case $cpu in
2224         i[345]86|pentium)
2225             cpuflags="-march=$cpu"
2226             disable mmx
2227         ;;
2228         # targets that do NOT support conditional mov (cmov)
2229         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2230             cpuflags="-march=$cpu"
2231             disable cmov
2232         ;;
2233         # targets that do support conditional mov (cmov)
2234         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2235             cpuflags="-march=$cpu"
2236             enable cmov
2237             enable fast_cmov
2238         ;;
2239         # targets that do support conditional mov but on which it's slow
2240         pentium4|pentium4m|prescott|nocona)
2241             cpuflags="-march=$cpu"
2242             enable cmov
2243             disable fast_cmov
2244         ;;
2245     esac
2246
2247 elif enabled sparc; then
2248
2249     case $cpu in
2250         niagara)
2251             cpuflags="-mcpu=$cpu"
2252             disable vis
2253         ;;
2254         sparc64)
2255             cpuflags="-mcpu=v9"
2256         ;;
2257     esac
2258
2259 elif enabled arm; then
2260
2261     case $cpu in
2262         armv*)
2263             cpuflags="-march=$cpu"
2264             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2265         ;;
2266         *)
2267             cpuflags="-mcpu=$cpu"
2268             case $cpu in
2269                 cortex-a*)                               subarch=armv7a  ;;
2270                 cortex-r*)                               subarch=armv7r  ;;
2271                 cortex-m*)                               subarch=armv7m  ;;
2272                 arm11*)                                  subarch=armv6   ;;
2273                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2274                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2275             esac
2276         ;;
2277     esac
2278
2279 elif enabled alpha; then
2280
2281     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2282
2283 elif enabled bfin; then
2284
2285     cpuflags="-mcpu=$cpu"
2286
2287 elif enabled mips; then
2288
2289     cpuflags="-march=$cpu"
2290
2291 elif enabled avr32; then
2292
2293     case $cpu in
2294         ap7[02]0[0-2])
2295             subarch="avr32_ap"
2296             cpuflags="-mpart=$cpu"
2297         ;;
2298         ap)
2299             subarch="avr32_ap"
2300             cpuflags="-march=$cpu"
2301         ;;
2302         uc3[ab]*)
2303             subarch="avr32_uc"
2304             cpuflags="-mcpu=$cpu"
2305         ;;
2306         uc)
2307             subarch="avr32_uc"
2308             cpuflags="-march=$cpu"
2309         ;;
2310     esac
2311
2312 fi
2313
2314 add_cflags $cpuflags
2315 add_asflags $cpuflags
2316
2317 # compiler sanity check
2318 check_exec <<EOF
2319 int main(void){ return 0; }
2320 EOF
2321 if test "$?" != 0; then
2322     echo "$cc is unable to create an executable file."
2323     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2324         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2325         echo "Only do this if you know what cross compiling means."
2326     fi
2327     die "C compiler test failed."
2328 fi
2329
2330 add_cppflags -D_ISOC99_SOURCE
2331 check_cflags -std=c99
2332 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2333 #include <stdlib.h>
2334 EOF
2335 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2336 #include <stdlib.h>
2337 EOF
2338
2339 check_host_cflags -std=c99
2340 check_host_cflags -Wall
2341
2342 case "$arch" in
2343     alpha|ia64|mips|parisc|sparc)
2344         spic=$shared
2345     ;;
2346     x86)
2347         subarch="x86_32"
2348         check_cc <<EOF && subarch="x86_64"
2349         int test[(int)sizeof(char*) - 7];
2350 EOF
2351         if test "$subarch" = "x86_64"; then
2352             spic=$shared
2353         fi
2354     ;;
2355 esac
2356
2357 enable $subarch
2358 enabled spic && enable pic
2359
2360 # OS specific
2361 case $target_os in
2362     haiku)
2363         prefix_default="/boot/common"
2364         network_extralibs="-lnetwork"
2365         host_libs=
2366         ;;
2367     sunos)
2368         FFSERVERLDFLAGS=""
2369         SHFLAGS='-shared -Wl,-h,$$(@F)'
2370         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2371         network_extralibs="-lsocket -lnsl"
2372         add_cppflags -D__EXTENSIONS__
2373         nm_opts='-P -g'
2374         ;;
2375     netbsd)
2376         disable symver
2377         oss_indev_extralibs="-lossaudio"
2378         oss_outdev_extralibs="-lossaudio"
2379         ;;
2380     openbsd)
2381         enable malloc_aligned
2382         # On OpenBSD 4.5. the compiler does not use PIC unless
2383         # explicitly using -fPIC. Libav builds fine without PIC,
2384         # however the generated executable will not do anything
2385         # (simply quits with exit-code 1, no crash, no output).
2386         # Thus explicitly enable PIC here.
2387         enable pic
2388         disable symver
2389         SHFLAGS='-shared'
2390         oss_indev_extralibs="-lossaudio"
2391         oss_outdev_extralibs="-lossaudio"
2392         ;;
2393     dragonfly)
2394         enable malloc_aligned
2395         disable symver
2396         ;;
2397     freebsd)
2398         enable malloc_aligned
2399         ;;
2400     bsd/os)
2401         add_extralibs -lpoll -lgnugetopt
2402         ;;
2403     darwin)
2404         enable malloc_aligned
2405         gas="gas-preprocessor.pl $cc"
2406         enabled ppc && add_asflags -force_cpusubtype_ALL
2407         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2408         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2409         add_ldflags -Wl,-dynamic,-search_paths_first
2410         SLIBSUF=".dylib"
2411         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2412         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2413         FFSERVERLDFLAGS=-Wl,-bind_at_load
2414         objformat="macho"
2415         enabled x86_64 && objformat="macho64"
2416         enabled_any pic shared ||
2417             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2418         ;;
2419     mingw32*)
2420         if test $target_os = "mingw32ce"; then
2421             disable network
2422         else
2423             target_os=mingw32
2424         fi
2425         LIBTARGET=i386
2426         if enabled x86_64; then
2427             enable malloc_aligned
2428             LIBTARGET="i386:x86-64"
2429         elif enabled arm; then
2430             LIBTARGET=arm-wince
2431         fi
2432         shlibdir_default="$bindir_default"
2433         SLIBPREF=""
2434         SLIBSUF=".dll"
2435         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2436         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2437         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2438         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2439             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2440             install -d "$(LIBDIR)"; \
2441             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2442         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2443         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'
2444         objformat="win32"
2445         dlltool="${cross_prefix}dlltool"
2446         enable dos_paths
2447         check_cflags -fno-common
2448         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2449                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2450                 die "ERROR: MinGW runtime version must be >= 3.15."
2451         add_cppflags -U__STRICT_ANSI__
2452         ;;
2453     cygwin*)
2454         target_os=cygwin
2455         shlibdir_default="$bindir_default"
2456         SLIBPREF="cyg"
2457         SLIBSUF=".dll"
2458         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2459         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2460         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2461         objformat="win32"
2462         enable dos_paths
2463         check_cflags -fno-common
2464         add_cppflags -U__STRICT_ANSI__
2465         ;;
2466     *-dos|freedos|opendos)
2467         network_extralibs="-lsocket"
2468         objformat="coff"
2469         enable dos_paths
2470         add_cppflags -U__STRICT_ANSI__
2471         ;;
2472     linux)
2473         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2474         enable dv1394
2475         ;;
2476     irix*)
2477         target_os=irix
2478         ranlib="echo ignoring ranlib"
2479         ;;
2480     os/2*)
2481         ln_s="cp -f"
2482         objformat="aout"
2483         add_cppflags -D_GNU_SOURCE
2484         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2485         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2486         FFSERVERLDFLAGS=""
2487         LIBSUF="_s.a"
2488         SLIBPREF=""
2489         SLIBSUF=".dll"
2490         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2491         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2492         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2493           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2494           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2495           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2496           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2497           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2498         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2499           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2500         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2501         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2502         enable dos_paths
2503         ;;
2504     gnu/kfreebsd)
2505         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2506         ;;
2507     gnu)
2508         ;;
2509     qnx)
2510         add_cppflags -D_QNX_SOURCE
2511         network_extralibs="-lsocket"
2512         ;;
2513     symbian)
2514         SLIBSUF=".dll"
2515         enable dos_paths
2516         add_cflags --include=$sysinclude/gcce/gcce.h
2517         ;;
2518     none)
2519         ;;
2520     *)
2521         die "Unknown OS '$target_os'."
2522         ;;
2523 esac
2524
2525 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2526
2527 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2528
2529 set_default $PATHS_LIST
2530
2531 # we need to build at least one lib type
2532 if ! enabled_any static shared; then
2533     cat <<EOF
2534 At least one library type must be built.
2535 Specify --enable-static to build the static libraries or --enable-shared to
2536 build the shared libraries as well. To only build the shared libraries specify
2537 --disable-static in addition to --enable-shared.
2538 EOF
2539     exit 1;
2540 fi
2541
2542 disabled static && LIBNAME=""
2543
2544 die_license_disabled() {
2545     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2546 }
2547
2548 die_license_disabled gpl libx264
2549 die_license_disabled gpl libxavs
2550 die_license_disabled gpl libxvid
2551 die_license_disabled gpl x11grab
2552
2553 die_license_disabled nonfree libfaac
2554
2555 die_license_disabled version3 libopencore_amrnb
2556 die_license_disabled version3 libopencore_amrwb
2557 die_license_disabled version3 libvo_aacenc
2558 die_license_disabled version3 libvo_amrwbenc
2559
2560 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2561
2562 disabled optimizations || check_cflags -fomit-frame-pointer
2563
2564 enable_pic() {
2565     enable pic
2566     add_cppflags -DPIC
2567     add_cflags   -fPIC
2568     add_asflags  -fPIC
2569 }
2570
2571 enabled pic && enable_pic
2572
2573 check_cc <<EOF || die "Symbol mangling check failed."
2574 int ff_extern;
2575 EOF
2576 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2577 extern_prefix=${sym%%ff_extern*}
2578
2579 check_cc <<EOF && enable inline_asm
2580 void foo(void) { __asm__ volatile ("" ::); }
2581 EOF
2582
2583 _restrict=
2584 for restrict_keyword in restrict __restrict__ __restrict; do
2585     check_cc <<EOF && _restrict=$restrict_keyword && break
2586 void foo(char * $restrict_keyword p);
2587 EOF
2588 done
2589
2590 check_cc <<EOF && enable attribute_packed
2591 struct { int x; } __attribute__((packed)) x;
2592 EOF
2593
2594 check_cc <<EOF && enable attribute_may_alias
2595 union { int x; } __attribute__((may_alias)) x;
2596 EOF
2597
2598 check_cc <<EOF || die "endian test failed"
2599 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2600 EOF
2601 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2602
2603 if enabled alpha; then
2604
2605     check_cflags -mieee
2606
2607 elif enabled arm; then
2608
2609     check_cflags -marm
2610     nogas=die
2611
2612     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2613         enable vfp_args
2614     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2615         case "${cross_prefix:-$cc}" in
2616             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2617             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2618 __asm__ (".eabi_attribute 28, 1");
2619 int main(void) { return 0; }
2620 EOF
2621         esac
2622         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2623     fi
2624
2625     # We have to check if pld is a nop and disable it.
2626     check_asm pld '"pld [r0]"'
2627
2628     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2629     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2630     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2631     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2632     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2633     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2634     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2635
2636     enabled_all armv6t2 shared !pic && enable_pic
2637
2638 elif enabled mips; then
2639
2640     check_asm loongson '"dmult.g $1, $2, $3"'
2641     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2642
2643 elif enabled ppc; then
2644
2645     enable local_aligned_8 local_aligned_16
2646
2647     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2648     check_asm ibm_asm   '"add 0, 0, 0"'
2649     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2650     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2651
2652     # AltiVec flags: The FSF version of GCC differs from the Apple version
2653     if enabled altivec; then
2654         nogas=warn
2655         check_cflags -maltivec -mabi=altivec &&
2656         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2657         check_cflags -faltivec
2658
2659         # check if our compiler supports Motorola AltiVec C API
2660         check_cc <<EOF || disable altivec
2661 $inc_altivec_h
2662 int main(void) {
2663     vector signed int v1, v2, v3;
2664     v1 = vec_add(v2,v3);
2665     return 0;
2666 }
2667 EOF
2668
2669         # check if our compiler supports braces for vector declarations
2670         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2671 $inc_altivec_h
2672 int main (void) { (vector int) {1}; return 0; }
2673 EOF
2674     fi
2675
2676 elif enabled sparc; then
2677
2678     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2679         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2680
2681 elif enabled x86; then
2682
2683     enable local_aligned_8 local_aligned_16
2684
2685     # check whether EBP is available on x86
2686     # As 'i' is stored on the stack, this program will crash
2687     # if the base pointer is used to access it because the
2688     # base pointer is cleared in the inline assembly code.
2689     check_exec_crash <<EOF && enable ebp_available
2690     volatile int i=0;
2691     __asm__ volatile (
2692         "xorl %%ebp, %%ebp"
2693     ::: "%ebp");
2694     return i;
2695 EOF
2696
2697     # check whether EBX is available on x86
2698     check_asm ebx_available '""::"b"(0)' &&
2699         check_asm ebx_available '"":::"%ebx"'
2700
2701     # check whether xmm clobbers are supported
2702     check_asm xmm_clobbers '"":::"%xmm0"'
2703
2704     # check whether more than 10 operands are supported
2705     check_cc <<EOF && enable ten_operands
2706 int main(void) {
2707     int x=0;
2708     __asm__ volatile(
2709         ""
2710         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2711     );
2712     return 0;
2713 }
2714 EOF
2715
2716     # check whether binutils is new enough to compile SSSE3/MMX2
2717     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2718     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2719
2720     check_asm bswap '"bswap %%eax" ::: "%eax"'
2721
2722     if ! disabled_any asm mmx yasm; then
2723         if check_cmd $yasmexe --version; then
2724             enabled x86_64 && yasm_extra="-m amd64"
2725             yasm_debug="-g dwarf2"
2726         elif check_cmd nasm -v; then
2727             yasmexe=nasm
2728             yasm_debug="-g -F dwarf"
2729             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2730         fi
2731
2732         YASMFLAGS="-f $objformat $yasm_extra"
2733         enabled pic               && append YASMFLAGS "-DPIC"
2734         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2735         case "$objformat" in
2736             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2737         esac
2738
2739         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2740             die "yasm not found, use --disable-yasm for a crippled build"
2741         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2742     fi
2743
2744     case "$cpu" in
2745         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2746             disable fast_clz
2747         ;;
2748     esac
2749
2750 fi
2751
2752 if enabled asm; then
2753     as=${gas:=$as}
2754     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2755         $nogas "GNU assembler not found, install gas-preprocessor"
2756 fi
2757
2758 check_ldflags -Wl,--as-needed
2759
2760 if check_func dlopen; then
2761     ldl=
2762 elif check_func dlopen -ldl; then
2763     ldl=-ldl
2764 fi
2765
2766 if enabled network; then
2767     check_type "sys/types.h sys/socket.h" socklen_t
2768     check_type netdb.h "struct addrinfo"
2769     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2770     check_type netinet/in.h "struct sockaddr_in6"
2771     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2772     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2773     # Prefer arpa/inet.h over winsock2
2774     if check_header arpa/inet.h ; then
2775         check_func closesocket
2776     elif check_header winsock2.h ; then
2777         check_func_headers winsock2.h closesocket -lws2 && \
2778             network_extralibs="-lws2" || \
2779         { check_func_headers winsock2.h closesocket -lws2_32 && \
2780             network_extralibs="-lws2_32"; }
2781         check_type ws2tcpip.h socklen_t
2782         check_type ws2tcpip.h "struct addrinfo"
2783         check_type ws2tcpip.h "struct ipv6_mreq"
2784         check_type ws2tcpip.h "struct sockaddr_in6"
2785         check_type ws2tcpip.h "struct sockaddr_storage"
2786         check_struct winsock2.h "struct sockaddr" sa_len
2787     else
2788         disable network
2789     fi
2790 fi
2791
2792 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2793 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2794
2795 check_func  fcntl
2796 check_func  fork
2797 check_func  getaddrinfo $network_extralibs
2798 check_func  gethrtime
2799 check_func  getrusage
2800 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2801 check_func  inet_aton $network_extralibs
2802 check_func  isatty
2803 check_func  localtime_r
2804 check_func  ${malloc_prefix}memalign            && enable memalign
2805 check_func  mkstemp
2806 check_func  mmap
2807 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2808 check_func  setrlimit
2809 check_func  strerror_r
2810 check_func  strtok_r
2811 check_func_headers io.h setmode
2812 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2813 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2814 check_func_headers windows.h GetProcessTimes
2815 check_func_headers windows.h MapViewOfFile
2816 check_func_headers windows.h VirtualAlloc
2817
2818 check_header dlfcn.h
2819 check_header dxva2api.h
2820 check_header malloc.h
2821 check_header poll.h
2822 check_header sys/mman.h
2823 check_header sys/resource.h
2824 check_header sys/select.h
2825 check_header vdpau/vdpau.h
2826 check_header vdpau/vdpau_x11.h
2827 check_header X11/extensions/XvMClib.h
2828
2829 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2830
2831 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2832 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2833
2834 # check for some common methods of building with pthread support
2835 # do this before the optional library checks as some of them require pthreads
2836 if ! disabled pthreads && ! enabled w32threads; then
2837     enable pthreads
2838     if check_func pthread_create; then
2839         :
2840     elif check_func pthread_create -pthread; then
2841         add_cflags -pthread
2842         add_extralibs -pthread
2843     elif check_func pthread_create -pthreads; then
2844         add_cflags -pthreads
2845         add_extralibs -pthreads
2846     elif check_func pthread_create -lpthreadGC2; then
2847         add_extralibs -lpthreadGC2
2848     elif ! check_lib pthread.h pthread_create -lpthread; then
2849         disable pthreads
2850     fi
2851 fi
2852
2853 for thread in $THREADS_LIST; do
2854     if enabled $thread; then
2855         test -n "$thread_type" &&
2856             die "ERROR: Only one thread type must be selected." ||
2857             thread_type="$thread"
2858     fi
2859 done
2860
2861 check_lib math.h sin -lm && LIBM="-lm"
2862 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2863
2864 check_mathfunc exp2
2865 check_mathfunc exp2f
2866 check_mathfunc llrint
2867 check_mathfunc llrintf
2868 check_mathfunc log2
2869 check_mathfunc log2f
2870 check_mathfunc lrint
2871 check_mathfunc lrintf
2872 check_mathfunc round
2873 check_mathfunc roundf
2874 check_mathfunc trunc
2875 check_mathfunc truncf
2876
2877 # these are off by default, so fail if requested and not available
2878 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2879 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2880 enabled libdirac   && require_pkg_config dirac                          \
2881     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2882     "dirac_decoder_init dirac_encoder_init"
2883 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2884 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2885 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2886 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2887 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2888 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2889 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2890 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2891 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2892 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2893 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2894 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2895 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2896 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2897 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2898 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2899 enabled libvpx     && {
2900     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2901                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2902     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2903                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2904 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2905                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2906                         die "ERROR: libx264 version must be >= 0.115."; }
2907 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2908 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2909 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2910
2911 # libdc1394 check
2912 if enabled libdc1394; then
2913     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2914         enable libdc1394_2; } ||
2915     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2916         enable libdc1394_1; } ||
2917     die "ERROR: No version of libdc1394 found "
2918 fi
2919
2920 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2921     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2922     enable sdl &&
2923     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2924 fi
2925
2926 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2927
2928 check_header linux/fb.h
2929 check_header linux/videodev.h
2930 check_header linux/videodev2.h
2931 check_header sys/videoio.h
2932
2933 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2934 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2935 # w32api 3.12 had it defined wrong
2936 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2937
2938 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2939 { check_header dev/bktr/ioctl_meteor.h &&
2940   check_header dev/bktr/ioctl_bt848.h; } ||
2941 { check_header machine/ioctl_meteor.h &&
2942   check_header machine/ioctl_bt848.h; } ||
2943 { check_header dev/video/meteor/ioctl_meteor.h &&
2944   check_header dev/video/bktr/ioctl_bt848.h; } ||
2945 check_header dev/ic/bt8xx.h
2946
2947 check_header sndio.h
2948 check_header sys/soundcard.h
2949 check_header soundcard.h
2950
2951 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2952
2953 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2954
2955 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2956
2957 enabled x11grab                         &&
2958 check_header X11/Xlib.h                 &&
2959 check_header X11/extensions/XShm.h      &&
2960 check_header X11/extensions/Xfixes.h    &&
2961 check_func XOpenDisplay -lX11           &&
2962 check_func XShmCreateImage -lX11 -lXext &&
2963 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2964
2965 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2966 check_cpp_condition \
2967     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2968     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2969       disable vdpau; }
2970 fi
2971
2972 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2973
2974 # add some useful compiler flags if supported
2975 check_cflags -Wdeclaration-after-statement
2976 check_cflags -Wall
2977 check_cflags -Wno-parentheses
2978 check_cflags -Wno-switch
2979 check_cflags -Wdisabled-optimization
2980 check_cflags -Wpointer-arith
2981 check_cflags -Wredundant-decls
2982 check_cflags -Wno-pointer-sign
2983 check_cflags -Wcast-qual
2984 check_cflags -Wwrite-strings
2985 check_cflags -Wtype-limits
2986 check_cflags -Wundef
2987 check_cflags -Wmissing-prototypes
2988 enabled extra_warnings && check_cflags -Winline
2989
2990 # add some linker flags
2991 check_ldflags -Wl,--warn-common
2992 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
2993 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2994
2995 echo "X{};" > $TMPV
2996 if test_ldflags -Wl,--version-script,$TMPV; then
2997     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2998     check_cc <<EOF && enable symver_asm_label
2999 void ff_foo(void) __asm__ ("av_foo@VERSION");
3000 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3001 EOF
3002     check_cc <<EOF && enable symver_gnu_asm
3003 __asm__(".symver ff_foo,av_foo@VERSION");
3004 void ff_foo(void) {}
3005 EOF
3006 fi
3007
3008 if enabled small; then
3009     add_cflags $size_cflags
3010     optimizations="small"
3011 elif enabled optimizations; then
3012     add_cflags $speed_cflags
3013 else
3014     add_cflags $noopt_cflags
3015 fi
3016 check_cflags -fno-math-errno
3017 check_cflags -fno-signed-zeros
3018
3019 if enabled icc; then
3020     # Just warnings, no remarks
3021     check_cflags -w1
3022     # -wd: Disable following warnings
3023     # 144, 167, 556: -Wno-pointer-sign
3024     # 1292: attribute "foo" ignored
3025     # 10006: ignoring unknown option -fno-signed-zeros
3026     # 10148: ignoring unknown option -Wno-parentheses
3027     # 10156: ignoring option '-W'; no argument required
3028     check_cflags -wd144,167,556,1292,10006,10148,10156
3029     # 11030: Warning unknown option --as-needed
3030     # 10156: ignoring option '-export'; no argument required
3031     check_ldflags -wd10156,11030
3032     # Allow to compile with optimizations
3033     check_ldflags -march=$cpu
3034     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3035     enable ebp_available
3036     if enabled x86_32; then
3037         test ${icc_version%%.*} -ge 11 && \
3038             check_cflags -falign-stack=maintain-16-byte || \
3039             disable aligned_stack
3040     fi
3041 elif enabled ccc; then
3042     # disable some annoying warnings
3043     add_cflags -msg_disable cvtu32to64
3044     add_cflags -msg_disable embedcomment
3045     add_cflags -msg_disable needconstext
3046     add_cflags -msg_disable nomainieee
3047     add_cflags -msg_disable ptrmismatch1
3048     add_cflags -msg_disable unreachcode
3049 elif enabled gcc; then
3050     check_cflags -fno-tree-vectorize
3051     check_cflags -Werror=implicit-function-declaration
3052     check_cflags -Werror=missing-prototypes
3053 elif enabled llvm_gcc; then
3054     check_cflags -mllvm -stack-alignment=16
3055 elif enabled clang; then
3056     check_cflags -mllvm -stack-alignment=16
3057     check_cflags -Qunused-arguments
3058 elif enabled armcc; then
3059     # 2523: use of inline assembler is deprecated
3060     add_cflags -W${armcc_opt},--diag_suppress=2523
3061     add_cflags -W${armcc_opt},--diag_suppress=1207
3062     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3063     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3064 elif enabled tms470; then
3065     add_cflags -pds=824 -pds=837
3066 elif enabled pathscale; then
3067     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3068 fi
3069
3070 enabled_any $THREADS_LIST      && enable threads
3071
3072 check_deps $CONFIG_LIST       \
3073            $CONFIG_EXTRA      \
3074            $HAVE_LIST         \
3075            $DECODER_LIST      \
3076            $ENCODER_LIST      \
3077            $HWACCEL_LIST      \
3078            $PARSER_LIST       \
3079            $BSF_LIST          \
3080            $DEMUXER_LIST      \
3081            $MUXER_LIST        \
3082            $FILTER_LIST       \
3083            $INDEV_LIST        \
3084            $OUTDEV_LIST       \
3085            $PROTOCOL_LIST     \
3086            $ACODEC_TESTS      \
3087            $VCODEC_TESTS      \
3088            $LAVF_TESTS        \
3089            $LAVFI_TESTS       \
3090            $SEEK_TESTS        \
3091
3092 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3093
3094 ! enabled_any memalign posix_memalign malloc_aligned &&
3095     enabled_any $need_memalign && enable memalign_hack
3096
3097 echo "install prefix            $prefix"
3098 echo "source path               $source_path"
3099 echo "C compiler                $cc"
3100 echo "ARCH                      $arch ($cpu)"
3101 if test "$build_suffix" != ""; then
3102     echo "build suffix              $build_suffix"
3103 fi
3104 if test "$extra_version" != ""; then
3105     echo "version string suffix     $extra_version"
3106 fi
3107 echo "big-endian                ${bigendian-no}"
3108 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3109 if enabled x86; then
3110     echo "${yasmexe}                      ${yasm-no}"
3111     echo "MMX enabled               ${mmx-no}"
3112     echo "MMX2 enabled              ${mmx2-no}"
3113     echo "3DNow! enabled            ${amd3dnow-no}"
3114     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3115     echo "SSE enabled               ${sse-no}"
3116     echo "SSSE3 enabled             ${ssse3-no}"
3117     echo "AVX enabled               ${avx-no}"
3118     echo "CMOV enabled              ${cmov-no}"
3119     echo "CMOV is fast              ${fast_cmov-no}"
3120     echo "EBX available             ${ebx_available-no}"
3121     echo "EBP available             ${ebp_available-no}"
3122     echo "10 operands supported     ${ten_operands-no}"
3123 fi
3124 if enabled arm; then
3125     echo "ARMv5TE enabled           ${armv5te-no}"
3126     echo "ARMv6 enabled             ${armv6-no}"
3127     echo "ARMv6T2 enabled           ${armv6t2-no}"
3128     echo "ARM VFP enabled           ${armvfp-no}"
3129     echo "IWMMXT enabled            ${iwmmxt-no}"
3130     echo "NEON enabled              ${neon-no}"
3131 fi
3132 if enabled mips; then
3133     echo "MMI enabled               ${mmi-no}"
3134 fi
3135 if enabled ppc; then
3136     echo "AltiVec enabled           ${altivec-no}"
3137     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3138     echo "dcbzl available           ${dcbzl-no}"
3139 fi
3140 if enabled sparc; then
3141     echo "VIS enabled               ${vis-no}"
3142 fi
3143 echo "debug symbols             ${debug-no}"
3144 echo "optimizations             ${optimizations-no}"
3145 echo "static                    ${static-no}"
3146 echo "shared                    ${shared-no}"
3147 echo "postprocessing support    ${postproc-no}"
3148 echo "new filter support        ${avfilter-no}"
3149 echo "network support           ${network-no}"
3150 echo "threading support         ${thread_type-no}"
3151 echo "SDL support               ${sdl-no}"
3152 echo "Sun medialib support      ${mlib-no}"
3153 echo "AVISynth enabled          ${avisynth-no}"
3154 echo "frei0r enabled            ${frei0r-no}"
3155 echo "libdc1394 support         ${libdc1394-no}"
3156 echo "libdirac enabled          ${libdirac-no}"
3157 echo "libfaac enabled           ${libfaac-no}"
3158 echo "libgsm enabled            ${libgsm-no}"
3159 echo "libmp3lame enabled        ${libmp3lame-no}"
3160 echo "libnut enabled            ${libnut-no}"
3161 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3162 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3163 echo "libopencv support         ${libopencv-no}"
3164 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3165 echo "librtmp enabled           ${librtmp-no}"
3166 echo "libschroedinger enabled   ${libschroedinger-no}"
3167 echo "libspeex enabled          ${libspeex-no}"
3168 echo "libtheora enabled         ${libtheora-no}"
3169 echo "libva enabled             ${vaapi-no}"
3170 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3171 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3172 echo "libvorbis enabled         ${libvorbis-no}"
3173 echo "libvpx enabled            ${libvpx-no}"
3174 echo "libx264 enabled           ${libx264-no}"
3175 echo "libxavs enabled           ${libxavs-no}"
3176 echo "libxvid enabled           ${libxvid-no}"
3177 echo "zlib enabled              ${zlib-no}"
3178 echo "bzlib enabled             ${bzlib-no}"
3179 echo
3180
3181 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3182     echo "Enabled ${type}s:"
3183     eval list=\$$(toupper $type)_LIST
3184     print_enabled '_*' $list | sort | pr -r -3 -t
3185     echo
3186 done
3187
3188 license="LGPL version 2.1 or later"
3189 if enabled nonfree; then
3190     license="nonfree and unredistributable"
3191 elif enabled gplv3; then
3192     license="GPL version 3 or later"
3193 elif enabled lgplv3; then
3194     license="LGPL version 3 or later"
3195 elif enabled gpl; then
3196     license="GPL version 2 or later"
3197 fi
3198
3199 echo "License: $license"
3200
3201 echo "Creating config.mak and config.h..."
3202
3203 # build tree in object directory if source path is different from current one
3204 if enabled source_path_used; then
3205     DIRS="
3206         doc
3207         libavcodec
3208         libavcodec/$arch
3209         libavdevice
3210         libavfilter
3211         libavfilter/$arch
3212         libavformat
3213         libavutil
3214         libavutil/$arch
3215         libpostproc
3216         libswscale
3217         libswscale/$arch
3218         tests
3219         tools
3220     "
3221     FILES="
3222         Makefile
3223         common.mak
3224         subdir.mak
3225         doc/texi2pod.pl
3226         libavcodec/Makefile
3227         libavcodec/${arch}/Makefile
3228         libavdevice/Makefile
3229         libavfilter/Makefile
3230         libavfilter/${arch}/Makefile
3231         libavformat/Makefile
3232         libavutil/Makefile
3233         libpostproc/Makefile
3234         libswscale/Makefile
3235     "
3236     map 'mkdir -p $v' $DIRS;
3237     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3238 fi
3239
3240 config_files="$TMPH config.mak"
3241
3242 cat > config.mak <<EOF
3243 # Automatically generated by configure - do not modify!
3244 ifndef LIBAV_CONFIG_MAK
3245 LIBAV_CONFIG_MAK=1
3246 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3247 prefix=$prefix
3248 LIBDIR=\$(DESTDIR)$libdir
3249 SHLIBDIR=\$(DESTDIR)$shlibdir
3250 INCDIR=\$(DESTDIR)$incdir
3251 BINDIR=\$(DESTDIR)$bindir
3252 DATADIR=\$(DESTDIR)$datadir
3253 MANDIR=\$(DESTDIR)$mandir
3254 SRC_PATH="$source_path"
3255 SRC_PATH_BARE=$source_path
3256 CC_IDENT=$cc_ident
3257 ARCH=$arch
3258 CC=$cc
3259 AS=$as
3260 LD=$ld
3261 DEPCC=$dep_cc
3262 YASM=$yasmexe
3263 YASMDEP=$yasmexe
3264 AR=$ar
3265 RANLIB=$ranlib
3266 LN_S=$ln_s
3267 CPPFLAGS=$CPPFLAGS
3268 CFLAGS=$CFLAGS
3269 ASFLAGS=$ASFLAGS
3270 CC_O=$CC_O
3271 DLLTOOL=$dlltool
3272 LDFLAGS=$LDFLAGS
3273 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3274 SHFLAGS=$SHFLAGS
3275 YASMFLAGS=$YASMFLAGS
3276 BUILDSUF=$build_suffix
3277 FULLNAME=$FULLNAME
3278 LIBPREF=$LIBPREF
3279 LIBSUF=$LIBSUF
3280 LIBNAME=$LIBNAME
3281 SLIBPREF=$SLIBPREF
3282 SLIBSUF=$SLIBSUF
3283 EXESUF=$EXESUF
3284 EXTRA_VERSION=$extra_version
3285 DEPFLAGS=$DEPFLAGS
3286 CCDEP=$CCDEP
3287 ASDEP=$ASDEP
3288 CC_DEPFLAGS=$CC_DEPFLAGS
3289 AS_DEPFLAGS=$AS_DEPFLAGS
3290 HOSTCC=$host_cc
3291 HOSTCFLAGS=$host_cflags
3292 HOSTEXESUF=$HOSTEXESUF
3293 HOSTLDFLAGS=$host_ldflags
3294 HOSTLIBS=$host_libs
3295 TARGET_EXEC=$target_exec
3296 TARGET_PATH=$target_path
3297 SDL_LIBS=$sdl_libs
3298 SDL_CFLAGS=$sdl_cflags
3299 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3300 EXTRALIBS=$extralibs
3301 INSTALL=install
3302 LIBTARGET=${LIBTARGET}
3303 SLIBNAME=${SLIBNAME}
3304 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3305 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3306 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3307 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3308 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3309 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3310 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3311 EOF
3312
3313 get_version(){
3314     name=$1
3315     file=$source_path/$2
3316     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3317     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3318     lcname=$(tolower $name)
3319     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3320     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3321 }
3322
3323 get_version LIBSWSCALE  libswscale/swscale.h
3324 get_version LIBPOSTPROC libpostproc/postprocess.h
3325 get_version LIBAVCODEC  libavcodec/version.h
3326 get_version LIBAVDEVICE libavdevice/avdevice.h
3327 get_version LIBAVFORMAT libavformat/version.h
3328 get_version LIBAVUTIL   libavutil/avutil.h
3329 get_version LIBAVFILTER libavfilter/avfilter.h
3330
3331 cat > $TMPH <<EOF
3332 /* Automatically generated by configure - do not modify! */
3333 #ifndef LIBAV_CONFIG_H
3334 #define LIBAV_CONFIG_H
3335 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3336 #define LIBAV_LICENSE "$(c_escape $license)"
3337 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3338 #define CC_TYPE "$cc_type"
3339 #define CC_VERSION $cc_version
3340 #define restrict $_restrict
3341 #define EXTERN_PREFIX "${extern_prefix}"
3342 #define EXTERN_ASM ${extern_prefix}
3343 #define SLIBSUF "$SLIBSUF"
3344 EOF
3345
3346 test -n "$malloc_prefix" &&
3347     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3348
3349 if enabled small || disabled optimizations; then
3350     echo "#undef  av_always_inline"  >> $TMPH
3351     if enabled small; then
3352         echo "#define av_always_inline inline"  >> $TMPH
3353     else
3354         echo "#define av_always_inline av_unused"  >> $TMPH
3355     fi
3356 fi
3357
3358 if enabled yasm; then
3359     append config_files $TMPASM
3360     printf '' >$TMPASM
3361 fi
3362
3363 print_config ARCH_   "$config_files" $ARCH_LIST
3364 print_config HAVE_   "$config_files" $HAVE_LIST
3365 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3366                                      $CONFIG_EXTRA      \
3367                                      $DECODER_LIST      \
3368                                      $ENCODER_LIST      \
3369                                      $HWACCEL_LIST      \
3370                                      $PARSER_LIST       \
3371                                      $BSF_LIST          \
3372                                      $DEMUXER_LIST      \
3373                                      $MUXER_LIST        \
3374                                      $FILTER_LIST       \
3375                                      $PROTOCOL_LIST     \
3376                                      $INDEV_LIST        \
3377                                      $OUTDEV_LIST       \
3378
3379 cat >>config.mak <<EOF
3380 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3381 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3382 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3383 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3384 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3385 EOF
3386
3387 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3388 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3389
3390 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3391 cp_if_changed $TMPH config.h
3392 touch .config
3393
3394 enabled yasm && cp_if_changed $TMPASM config.asm
3395
3396 cat > $TMPH <<EOF
3397 /* Generated by ffconf */
3398 #ifndef AVUTIL_AVCONFIG_H
3399 #define AVUTIL_AVCONFIG_H
3400 EOF
3401
3402 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3403
3404 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3405
3406 cp_if_changed $TMPH libavutil/avconfig.h
3407
3408 test -n "$WARNINGS" && printf "\n$WARNINGS"
3409
3410 # build pkg-config files
3411
3412 pkgconfig_generate(){
3413 name=$1
3414 shortname=${name#lib}${build_suffix}
3415 comment=$2
3416 version=$3
3417 libs=$4
3418 requires=$5
3419 enabled ${name#lib} || return 0
3420 cat <<EOF > $name/$name.pc
3421 prefix=$prefix
3422 exec_prefix=\${prefix}
3423 libdir=$libdir
3424 includedir=$incdir
3425
3426 Name: $name
3427 Description: $comment
3428 Version: $version
3429 Requires: $(enabled shared || echo $requires)
3430 Requires.private: $(enabled shared && echo $requires)
3431 Conflicts:
3432 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3433 Libs.private: $(enabled shared && echo $libs)
3434 Cflags: -I\${includedir}
3435 EOF
3436 cat <<EOF > $name/$name-uninstalled.pc
3437 prefix=
3438 exec_prefix=
3439 libdir=\${pcfiledir}
3440 includedir=${source_path}
3441
3442 Name: $name
3443 Description: $comment
3444 Version: $version
3445 Requires: $requires
3446 Conflicts:
3447 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3448 Cflags: -I\${includedir}
3449 EOF
3450 }
3451
3452 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3453 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3454 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3455 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3456 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3457 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3458 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"