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 Help options:
  63   --help                   print this message
  64   --list-decoders          show all available decoders
  65   --list-encoders          show all available encoders
  66   --list-hwaccels          show all available hardware accelerators
  67   --list-demuxers          show all available demuxers
  68   --list-muxers            show all available muxers
  69   --list-parsers           show all available parsers
  70   --list-protocols         show all available protocols
  71   --list-bsfs              show all available bitstream filters
  72   --list-indevs            show all available input devices
  73   --list-outdevs           show all available output devices
  74   --list-filters           show all available filters
  75
  76 Standard options:
  77   --logfile=FILE           log tests and output to FILE [config.log]
  78   --disable-logging        do not log configure debug information
  79   --prefix=PREFIX          install in PREFIX [$prefix]
  80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  81   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  82   --libdir=DIR             install libs in DIR [PREFIX/lib]
  83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  84   --incdir=DIR             install includes in DIR [PREFIX/include]
  85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  86
  87 Licensing options:
  88   --enable-gpl             allow use of GPL code, the resulting libs
  89                            and binaries will be under GPL [no]
  90   --enable-version3        upgrade (L)GPL to version 3 [no]
  91   --enable-nonfree         allow use of nonfree code, the resulting libs
  92                            and binaries will be unredistributable [no]
  93
  94 Configuration options:
  95   --disable-static         do not build static libraries [no]
  96   --enable-shared          build shared libraries [no]
  97   --enable-small           optimize for size instead of speed
  98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101
 102 Component options:
 103   --disable-doc            do not build documentation
 104   --disable-avconv         disable avconv build
 105   --disable-avplay         disable avplay build
 106   --disable-avprobe        disable avprobe build
 107   --disable-avserver       disable avserver build
 108   --disable-avdevice       disable libavdevice build
 109   --disable-avcodec        disable libavcodec build
 110   --disable-avformat       disable libavformat build
 111   --disable-swscale        disable libswscale build
 112   --disable-avfilter       disable video filter support [no]
 113   --disable-avresample     disable libavresample build [no]
 114   --disable-pthreads       disable pthreads [auto]
 115   --disable-w32threads     disable Win32 threads [auto]
 116   --enable-x11grab         enable X11 grabbing [no]
 117   --disable-network        disable network support [no]
 118   --disable-dct            disable DCT code
 119   --disable-mdct           disable MDCT code
 120   --disable-rdft           disable RDFT code
 121   --disable-fft            disable FFT code
 122   --enable-dxva2           enable DXVA2 code
 123   --enable-vaapi           enable VAAPI code
 124   --enable-vda             enable VDA code
 125   --enable-vdpau           enable VDPAU code
 126
 127 Individual component options:
 128   --disable-everything     disable all components listed below
 129   --disable-encoder=NAME   disable encoder NAME
 130   --enable-encoder=NAME    enable encoder NAME
 131   --disable-encoders       disable all encoders
 132   --disable-decoder=NAME   disable decoder NAME
 133   --enable-decoder=NAME    enable decoder NAME
 134   --disable-decoders       disable all decoders
 135   --disable-hwaccel=NAME   disable hwaccel NAME
 136   --enable-hwaccel=NAME    enable hwaccel NAME
 137   --disable-hwaccels       disable all hwaccels
 138   --disable-muxer=NAME     disable muxer NAME
 139   --enable-muxer=NAME      enable muxer NAME
 140   --disable-muxers         disable all muxers
 141   --disable-demuxer=NAME   disable demuxer NAME
 142   --enable-demuxer=NAME    enable demuxer NAME
 143   --disable-demuxers       disable all demuxers
 144   --enable-parser=NAME     enable parser NAME
 145   --disable-parser=NAME    disable parser NAME
 146   --disable-parsers        disable all parsers
 147   --enable-bsf=NAME        enable bitstream filter NAME
 148   --disable-bsf=NAME       disable bitstream filter NAME
 149   --disable-bsfs           disable all bitstream filters
 150   --enable-protocol=NAME   enable protocol NAME
 151   --disable-protocol=NAME  disable protocol NAME
 152   --disable-protocols      disable all protocols
 153   --enable-indev=NAME      enable input device NAME
 154   --disable-indev=NAME     disable input device NAME
 155   --disable-indevs         disable input devices
 156   --enable-outdev=NAME     enable output device NAME
 157   --disable-outdev=NAME    disable output device NAME
 158   --disable-outdevs        disable output devices
 159   --disable-devices        disable all devices
 160   --enable-filter=NAME     enable filter NAME
 161   --disable-filter=NAME    disable filter NAME
 162   --disable-filters        disable all filters
 163
 164 External library support:
 165   --enable-avisynth        enable reading of AVISynth script files [no]
 166   --enable-bzlib           enable bzlib [autodetect]
 167   --enable-frei0r          enable frei0r video filtering
 168   --enable-gnutls          enable gnutls [no]
 169   --enable-libcdio         enable audio CD grabbing with libcdio
 170   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 171                            and libraw1394 [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 176   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 177   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 178   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 179   --enable-libopencv       enable video filtering via libopencv [no]
 180   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 181   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 182   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 183   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 184   --enable-libspeex        enable Speex support via libspeex [no]
 185   --enable-libtheora       enable Theora encoding via libtheora [no]
 186   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 187   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 188   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 189                            native implementation exists [no]
 190   --enable-libvpx          enable VP8 support via libvpx [no]
 191   --enable-libx264         enable H.264 encoding via x264 [no]
 192   --enable-libxavs         enable AVS encoding via xavs [no]
 193   --enable-libxvid         enable Xvid encoding via xvidcore,
 194                            native MPEG-4/Xvid encoder exists [no]
 195   --enable-openssl         enable openssl [no]
 196   --enable-zlib            enable zlib [autodetect]
 197
 198 Advanced options (experts only):
 199   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 200   --enable-cross-compile   assume a cross-compiler is used
 201   --sysroot=PATH           root of cross-build tree
 202   --sysinclude=PATH        location of cross-build system headers
 203   --target-os=OS           compiler targets OS [$target_os]
 204   --target-exec=CMD        command to run executables on target
 205   --target-path=DIR        path to view of build directory on target
 206   --nm=NM                  use nm tool
 207   --ar=AR                  use archive tool AR [$ar_default]
 208   --as=AS                  use assembler AS [$as_default]
 209   --cc=CC                  use C compiler CC [$cc_default]
 210   --ld=LD                  use linker LD
 211   --host-cc=HOSTCC         use host C compiler HOSTCC
 212   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 213   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 214   --host-libs=HLIBS        use libs HLIBS when linking for host
 215   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 216   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 217   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 218   --extra-version=STRING   version string suffix []
 219   --optflags               override optimization-related compiler flags
 220   --build-suffix=SUFFIX    library name suffix []
 221   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 222   --arch=ARCH              select architecture [$arch]
 223   --cpu=CPU                select the minimum required CPU (affects
 224                            instruction selection, may crash on older CPUs)
 225   --enable-pic             build position-independent code
 226   --enable-sram            allow use of on-chip SRAM
 227   --disable-symver         disable symbol versioning
 228   --disable-fastdiv        disable table-based division
 229   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 230   --disable-safe-bitstream-reader
 231                            disable buffer boundary checking in bitreaders
 232                            (faster, but may crash)
 233   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 234
 235 Optimization options (experts only):
 236   --disable-asm            disable all assembler optimizations
 237   --disable-altivec        disable AltiVec optimizations
 238   --disable-amd3dnow       disable 3DNow! optimizations
 239   --disable-amd3dnowext    disable 3DNow! extended optimizations
 240   --disable-mmx            disable MMX optimizations
 241   --disable-mmx2           disable MMX2 optimizations
 242   --disable-sse            disable SSE optimizations
 243   --disable-ssse3          disable SSSE3 optimizations
 244   --disable-avx            disable AVX optimizations
 245   --disable-armv5te        disable armv5te optimizations
 246   --disable-armv6          disable armv6 optimizations
 247   --disable-armv6t2        disable armv6t2 optimizations
 248   --disable-armvfp         disable ARM VFP optimizations
 249   --disable-mmi            disable MMI optimizations
 250   --disable-neon           disable NEON optimizations
 251   --disable-vis            disable VIS optimizations
 252   --disable-yasm           disable use of yasm assembler
 253
 254 Developer options (useful when working on Libav itself):
 255   --disable-debug          disable debugging symbols
 256   --enable-debug=LEVEL     set the debug level [$debuglevel]
 257   --disable-optimizations  disable compiler optimizations
 258   --enable-extra-warnings  enable more compiler warnings
 259   --samples=PATH           location of test samples for FATE, if not set use
 260                            \$LIBAV_SAMPLES at make invocation time.
 261   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 262                            should be used only for debugging purposes)
 263
 264 NOTE: Object files are built at the place where configure is launched.
 265 EOF
 266   exit 0
 267 }
 268
 269 quotes='""'
 270
 271 log(){
 272     echo "$@" >> $logfile
 273 }
 274
 275 log_file(){
 276     log BEGIN $1
 277     pr -n -t $1 >> $logfile
 278     log END $1
 279 }
 280
 281 echolog(){
 282     log "$@"
 283     echo "$@"
 284 }
 285
 286 warn(){
 287     log "WARNING: $*"
 288     WARNINGS="${WARNINGS}WARNING: $*\n"
 289 }
 290
 291 die(){
 292     echolog "$@"
 293     cat <<EOF
 294
 295 If you think configure made a mistake, make sure you are using the latest
 296 version from Git.  If the latest version fails, report the problem to the
 297 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 298 EOF
 299     if disabled logging; then
 300         cat <<EOF
 301 Rerun configure with logging enabled (do not use --disable-logging), and
 302 include the log this produces with your report.
 303 EOF
 304     else
 305 cat <<EOF
 306 Include the log file "$logfile" produced by configure as this will help
 307 solving the problem.
 308 EOF
 309     fi
 310     exit 1
 311 }
 312
 313 # Avoid locale weirdness, besides we really just want to translate ASCII.
 314 toupper(){
 315     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 316 }
 317
 318 tolower(){
 319     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 320 }
 321
 322 c_escape(){
 323     echo "$*" | sed 's/["\\]/\\\0/g'
 324 }
 325
 326 sh_quote(){
 327     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 328     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 329     echo "$v"
 330 }
 331
 332 cleanws(){
 333     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 334 }
 335
 336 filter(){
 337     pat=$1
 338     shift
 339     for v; do
 340         eval "case $v in $pat) echo $v ;; esac"
 341     done
 342 }
 343
 344 filter_out(){
 345     pat=$1
 346     shift
 347     for v; do
 348         eval "case $v in $pat) ;; *) echo $v ;; esac"
 349     done
 350 }
 351
 352 map(){
 353     m=$1
 354     shift
 355     for v; do eval $m; done
 356 }
 357
 358 set_all(){
 359     value=$1
 360     shift
 361     for var in $*; do
 362         eval $var=$value
 363     done
 364 }
 365
 366 set_weak(){
 367     value=$1
 368     shift
 369     for var; do
 370         eval : \${$var:=$value}
 371     done
 372 }
 373
 374 set_safe(){
 375     var=$1
 376     shift
 377     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 378 }
 379
 380 get_safe(){
 381     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 382 }
 383
 384 pushvar(){
 385     for var in $*; do
 386         eval level=\${${var}_level:=0}
 387         eval ${var}_${level}="\$$var"
 388         eval ${var}_level=$(($level+1))
 389     done
 390 }
 391
 392 popvar(){
 393     for var in $*; do
 394         eval level=\${${var}_level:-0}
 395         test $level = 0 && continue
 396         eval level=$(($level-1))
 397         eval $var="\${${var}_${level}}"
 398         eval ${var}_level=$level
 399         eval unset ${var}_${level}
 400     done
 401 }
 402
 403 enable(){
 404     set_all yes $*
 405 }
 406
 407 disable(){
 408     set_all no $*
 409 }
 410
 411 enable_weak(){
 412     set_weak yes $*
 413 }
 414
 415 disable_weak(){
 416     set_weak no $*
 417 }
 418
 419 enable_safe(){
 420     for var; do
 421         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 422     done
 423 }
 424
 425 disable_safe(){
 426     for var; do
 427         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 428     done
 429 }
 430
 431 do_enable_deep(){
 432     for var; do
 433         enabled $var && continue
 434         eval sel="\$${var}_select"
 435         eval sgs="\$${var}_suggest"
 436         pushvar var sgs
 437         enable_deep $sel
 438         popvar sgs
 439         enable_deep_weak $sgs
 440         popvar var
 441     done
 442 }
 443
 444 enable_deep(){
 445     do_enable_deep $*
 446     enable $*
 447 }
 448
 449 enable_deep_weak(){
 450     do_enable_deep $*
 451     enable_weak $*
 452 }
 453
 454 enabled(){
 455     test "${1#!}" = "$1" && op== || op=!=
 456     eval test "x\$${1#!}" $op "xyes"
 457 }
 458
 459 disabled(){
 460     test "${1#!}" = "$1" && op== || op=!=
 461     eval test "x\$${1#!}" $op "xno"
 462 }
 463
 464 enabled_all(){
 465     for opt; do
 466         enabled $opt || return 1
 467     done
 468 }
 469
 470 disabled_all(){
 471     for opt; do
 472         disabled $opt || return 1
 473     done
 474 }
 475
 476 enabled_any(){
 477     for opt; do
 478         enabled $opt && return 0
 479     done
 480 }
 481
 482 disabled_any(){
 483     for opt; do
 484         disabled $opt && return 0
 485     done
 486     return 1
 487 }
 488
 489 set_default(){
 490     for opt; do
 491         eval : \${$opt:=\$${opt}_default}
 492     done
 493 }
 494
 495 is_in(){
 496     value=$1
 497     shift
 498     for var in $*; do
 499         [ $var = $value ] && return 0
 500     done
 501     return 1
 502 }
 503
 504 check_deps(){
 505     for cfg; do
 506         cfg="${cfg#!}"
 507         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 508         disabled ${cfg}_checking && continue
 509         enable ${cfg}_checking
 510
 511         eval dep_all="\$${cfg}_deps"
 512         eval dep_any="\$${cfg}_deps_any"
 513         eval dep_sel="\$${cfg}_select"
 514         eval dep_sgs="\$${cfg}_suggest"
 515         eval dep_ifa="\$${cfg}_if"
 516         eval dep_ifn="\$${cfg}_if_any"
 517
 518         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 519         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 520         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 521
 522         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 523         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 524         enabled_all  $dep_all || disable $cfg
 525         enabled_any  $dep_any || disable $cfg
 526         disabled_any $dep_sel && disable $cfg
 527
 528         if enabled $cfg; then
 529             eval dep_extralibs="\$${cfg}_extralibs"
 530             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 531             enable_deep $dep_sel
 532             enable_deep_weak $dep_sgs
 533         fi
 534
 535         disable ${cfg}_checking
 536     done
 537 }
 538
 539 print_config_h(){
 540     enabled $1 && v=1 || v=0
 541     echo "#define $2 $v"
 542 }
 543
 544 print_config_mak(){
 545     enabled $1 && v= || v=!
 546     echo "$v$2=yes"
 547 }
 548
 549 print_config_asm(){
 550     enabled $1 && v=1 || v=0
 551     echo "%define $2 $v"
 552 }
 553
 554 print_config(){
 555     pfx=$1
 556     files=$2
 557     shift 2
 558     for cfg; do
 559         ucname="$(toupper $cfg)"
 560         for f in $files; do
 561             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 562         done
 563     done
 564 }
 565
 566 print_enabled(){
 567     test "$1" = -n && end=" " && shift || end="\n"
 568     suf=$1
 569     shift
 570     for v; do
 571         enabled $v && printf "%s$end" ${v%$suf};
 572     done
 573 }
 574
 575 append(){
 576     var=$1
 577     shift
 578     eval "$var=\"\$$var $*\""
 579 }
 580
 581 prepend(){
 582     var=$1
 583     shift
 584     eval "$var=\"$* \$$var\""
 585 }
 586
 587 add_cppflags(){
 588     append CPPFLAGS $($filter_cppflags "$@")
 589 }
 590
 591 add_cflags(){
 592     append CFLAGS $($filter_cflags "$@")
 593 }
 594
 595 add_asflags(){
 596     append ASFLAGS $($filter_asflags "$@")
 597 }
 598
 599 add_ldflags(){
 600     append LDFLAGS "$@"
 601 }
 602
 603 add_extralibs(){
 604     prepend extralibs "$@"
 605 }
 606
 607 check_cmd(){
 608     log "$@"
 609     "$@" >> $logfile 2>&1
 610 }
 611
 612 check_cc(){
 613     log check_cc "$@"
 614     cat > $TMPC
 615     log_file $TMPC
 616     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 617 }
 618
 619 check_cpp(){
 620     log check_cpp "$@"
 621     cat > $TMPC
 622     log_file $TMPC
 623     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 624 }
 625
 626 check_as(){
 627     log check_as "$@"
 628     cat > $TMPC
 629     log_file $TMPC
 630     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 631 }
 632
 633 check_asm(){
 634     log check_asm "$@"
 635     name="$1"
 636     code="$2"
 637     shift 2
 638     disable $name
 639     check_as "$@" <<EOF && enable $name
 640 void foo(void){ __asm__ volatile($code); }
 641 EOF
 642 }
 643
 644 check_yasm(){
 645     log check_yasm "$@"
 646     echo "$1" > $TMPS
 647     log_file $TMPS
 648     shift 1
 649     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 650 }
 651
 652 check_ld(){
 653     log check_ld "$@"
 654     flags=''
 655     libs=''
 656     for f; do
 657         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 658     done
 659     check_cc $($filter_cflags $flags) || return
 660     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 661 }
 662
 663 check_code(){
 664     log check_code "$@"
 665     check=$1
 666     headers=$2
 667     code=$3
 668     shift 3
 669     {
 670         for hdr in $headers; do
 671             echo "#include <$hdr>"
 672         done
 673         echo "int main(void) { $code; return 0; }"
 674     } | check_$check "$@"
 675 }
 676
 677 check_cppflags(){
 678     log check_cppflags "$@"
 679     set -- $($filter_cppflags "$@")
 680     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 681 int x;
 682 EOF
 683 }
 684
 685 check_cflags(){
 686     log check_cflags "$@"
 687     set -- $($filter_cflags "$@")
 688     check_cc "$@" <<EOF && append CFLAGS "$@"
 689 int x;
 690 EOF
 691 }
 692
 693 test_ldflags(){
 694     log test_ldflags "$@"
 695     check_ld "$@" <<EOF
 696 int main(void){ return 0; }
 697 EOF
 698 }
 699
 700 check_ldflags(){
 701     log check_ldflags "$@"
 702     test_ldflags "$@" && add_ldflags "$@"
 703 }
 704
 705 check_header(){
 706     log check_header "$@"
 707     header=$1
 708     shift
 709     disable_safe $header
 710     check_cpp "$@" <<EOF && enable_safe $header
 711 #include <$header>
 712 int x;
 713 EOF
 714 }
 715
 716 check_func(){
 717     log check_func "$@"
 718     func=$1
 719     shift
 720     disable $func
 721     check_ld "$@" <<EOF && enable $func
 722 extern int $func();
 723 int main(void){ $func(); }
 724 EOF
 725 }
 726
 727 check_mathfunc(){
 728     log check_mathfunc "$@"
 729     func=$1
 730     shift
 731     disable $func
 732     check_ld "$@" <<EOF && enable $func
 733 #include <math.h>
 734 float foo(float f) { return $func(f); }
 735 int main(void){ return 0; }
 736 EOF
 737 }
 738
 739 check_func_headers(){
 740     log check_func_headers "$@"
 741     headers=$1
 742     funcs=$2
 743     shift 2
 744     {
 745         for hdr in $headers; do
 746             echo "#include <$hdr>"
 747         done
 748         for func in $funcs; do
 749             echo "long check_$func(void) { return (long) $func; }"
 750         done
 751         echo "int main(void) { return 0; }"
 752     } | check_ld "$@" && enable $funcs && enable_safe $headers
 753 }
 754
 755 check_cpp_condition(){
 756     log check_cpp_condition "$@"
 757     header=$1
 758     condition=$2
 759     shift 2
 760     check_cpp $($filter_cppflags "$@") <<EOF
 761 #include <$header>
 762 #if !($condition)
 763 #error "unsatisfied condition: $condition"
 764 #endif
 765 EOF
 766 }
 767
 768 check_lib(){
 769     log check_lib "$@"
 770     header="$1"
 771     func="$2"
 772     shift 2
 773     check_header $header && check_func $func "$@" && add_extralibs "$@"
 774 }
 775
 776 check_lib2(){
 777     log check_lib2 "$@"
 778     headers="$1"
 779     funcs="$2"
 780     shift 2
 781     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 782 }
 783
 784 check_pkg_config(){
 785     log check_pkg_config "$@"
 786     pkg="$1"
 787     headers="$2"
 788     funcs="$3"
 789     shift 3
 790     $pkg_config --exists $pkg || return
 791     pkg_cflags=$($pkg_config --cflags $pkg)
 792     pkg_libs=$($pkg_config --libs $pkg)
 793     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 794         set_safe ${pkg}_cflags $pkg_cflags   &&
 795         set_safe ${pkg}_libs   $pkg_libs
 796 }
 797
 798 check_exec(){
 799     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 800 }
 801
 802 check_exec_crash(){
 803     code=$(cat)
 804
 805     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 806     # are safe but may not be available everywhere.  Thus we use
 807     # raise(SIGTERM) instead.  The check is run in a subshell so we
 808     # can redirect the "Terminated" message from the shell.  SIGBUS
 809     # is not defined by standard C so it is used conditionally.
 810
 811     (check_exec "$@") >> $logfile 2>&1 <<EOF
 812 #include <signal.h>
 813 static void sighandler(int sig){
 814     raise(SIGTERM);
 815 }
 816 int main(void){
 817     signal(SIGILL, sighandler);
 818     signal(SIGFPE, sighandler);
 819     signal(SIGSEGV, sighandler);
 820 #ifdef SIGBUS
 821     signal(SIGBUS, sighandler);
 822 #endif
 823     { $code }
 824 }
 825 EOF
 826 }
 827
 828 check_type(){
 829     log check_type "$@"
 830     headers=$1
 831     type=$2
 832     shift 2
 833     disable_safe "$type"
 834     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
 835 }
 836
 837 check_struct(){
 838     log check_type "$@"
 839     headers=$1
 840     struct=$2
 841     member=$3
 842     shift 3
 843     disable_safe "${struct}_${member}"
 844     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
 845         enable_safe "${struct}_${member}"
 846 }
 847
 848 require(){
 849     name="$1"
 850     header="$2"
 851     func="$3"
 852     shift 3
 853     check_lib $header $func "$@" || die "ERROR: $name not found"
 854 }
 855
 856 require2(){
 857     name="$1"
 858     headers="$2"
 859     func="$3"
 860     shift 3
 861     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 862 }
 863
 864 require_pkg_config(){
 865     pkg="$1"
 866     check_pkg_config "$@" || die "ERROR: $pkg not found"
 867     add_cflags    $(get_safe ${pkg}_cflags)
 868     add_extralibs $(get_safe ${pkg}_libs)
 869 }
 870
 871 check_host_cc(){
 872     log check_host_cc "$@"
 873     cat > $TMPC
 874     log_file $TMPC
 875     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 876 }
 877
 878 check_host_cflags(){
 879     log check_host_cflags "$@"
 880     check_host_cc "$@" <<EOF && append host_cflags "$@"
 881 int x;
 882 EOF
 883 }
 884
 885 apply(){
 886     file=$1
 887     shift
 888     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 889 }
 890
 891 cp_if_changed(){
 892     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 893     mkdir -p "$(dirname $2)"
 894     cp -f "$1" "$2"
 895 }
 896
 897 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 898 # system-dependent things.
 899
 900 COMPONENT_LIST="
 901     bsfs
 902     decoders
 903     demuxers
 904     encoders
 905     filters
 906     hwaccels
 907     indevs
 908     muxers
 909     outdevs
 910     parsers
 911     protocols
 912 "
 913
 914 PROGRAM_LIST="
 915     avconv
 916     avplay
 917     avprobe
 918     avserver
 919 "
 920
 921 CONFIG_LIST="
 922     $COMPONENT_LIST
 923     $PROGRAM_LIST
 924     ac3dsp
 925     avcodec
 926     avdevice
 927     avfilter
 928     avformat
 929     avresample
 930     avisynth
 931     bzlib
 932     dct
 933     doc
 934     dwt
 935     dxva2
 936     fastdiv
 937     fft
 938     frei0r
 939     gnutls
 940     gpl
 941     gray
 942     hardcoded_tables
 943     libcdio
 944     libdc1394
 945     libfaac
 946     libfreetype
 947     libgsm
 948     libilbc
 949     libmp3lame
 950     libopencore_amrnb
 951     libopencore_amrwb
 952     libopencv
 953     libopenjpeg
 954     libpulse
 955     librtmp
 956     libschroedinger
 957     libspeex
 958     libtheora
 959     libvo_aacenc
 960     libvo_amrwbenc
 961     libvorbis
 962     libvpx
 963     libx264
 964     libxavs
 965     libxvid
 966     lsp
 967     mdct
 968     memalign_hack
 969     mpegaudiodsp
 970     network
 971     nonfree
 972     openssl
 973     pic
 974     rdft
 975     rtpdec
 976     runtime_cpudetect
 977     safe_bitstream_reader
 978     shared
 979     sinewin
 980     small
 981     sram
 982     static
 983     swscale
 984     swscale_alpha
 985     thumb
 986     vaapi
 987     vda
 988     vdpau
 989     version3
 990     xmm_clobber_test
 991     x11grab
 992     zlib
 993 "
 994
 995 THREADS_LIST='
 996     pthreads
 997     w32threads
 998 '
 999
1000 ARCH_LIST='
1001     alpha
1002     arm
1003     avr32
1004     avr32_ap
1005     avr32_uc
1006     bfin
1007     ia64
1008     m68k
1009     mips
1010     mips64
1011     parisc
1012     ppc
1013     ppc64
1014     s390
1015     sh4
1016     sparc
1017     sparc64
1018     tomi
1019     x86
1020     x86_32
1021     x86_64
1022 '
1023
1024 ARCH_EXT_LIST='
1025     altivec
1026     amd3dnow
1027     amd3dnowext
1028     armv5te
1029     armv6
1030     armv6t2
1031     armvfp
1032     avx
1033     mmi
1034     mmx
1035     mmx2
1036     neon
1037     ppc4xx
1038     sse
1039     ssse3
1040     vfpv3
1041     vis
1042 '
1043
1044 HAVE_LIST_PUB='
1045     bigendian
1046     fast_unaligned
1047 '
1048
1049 HAVE_LIST="
1050     $ARCH_EXT_LIST
1051     $HAVE_LIST_PUB
1052     $THREADS_LIST
1053     aligned_malloc
1054     aligned_stack
1055     alsa_asoundlib_h
1056     altivec_h
1057     arpa_inet_h
1058     asm_mod_y
1059     attribute_may_alias
1060     attribute_packed
1061     cbrtf
1062     closesocket
1063     cmov
1064     dcbzl
1065     dev_bktr_ioctl_bt848_h
1066     dev_bktr_ioctl_meteor_h
1067     dev_ic_bt8xx_h
1068     dev_video_bktr_ioctl_bt848_h
1069     dev_video_meteor_ioctl_meteor_h
1070     dlfcn_h
1071     dlopen
1072     dos_paths
1073     dxva_h
1074     ebp_available
1075     ebx_available
1076     exp2
1077     exp2f
1078     fast_64bit
1079     fast_clz
1080     fast_cmov
1081     fcntl
1082     fork
1083     getaddrinfo
1084     gethrtime
1085     GetProcessAffinityMask
1086     GetProcessMemoryInfo
1087     GetProcessTimes
1088     GetSystemTimeAsFileTime
1089     getrusage
1090     gettimeofday
1091     gnu_as
1092     ibm_asm
1093     inet_aton
1094     inline_asm
1095     io_h
1096     isatty
1097     isinf
1098     isnan
1099     jack_port_get_latency_range
1100     ldbrx
1101     libdc1394_1
1102     libdc1394_2
1103     llrint
1104     llrintf
1105     local_aligned_16
1106     local_aligned_8
1107     localtime_r
1108     log2
1109     log2f
1110     loongson
1111     lrint
1112     lrintf
1113     machine_ioctl_bt848_h
1114     machine_ioctl_meteor_h
1115     malloc_h
1116     MapViewOfFile
1117     memalign
1118     mkstemp
1119     mmap
1120     nanosleep
1121     netinet_sctp_h
1122     poll_h
1123     posix_memalign
1124     round
1125     roundf
1126     sched_getaffinity
1127     sdl
1128     sdl_video_size
1129     setmode
1130     setrlimit
1131     Sleep
1132     sndio_h
1133     socklen_t
1134     soundcard_h
1135     strerror_r
1136     strptime
1137     strtok_r
1138     struct_addrinfo
1139     struct_group_source_req
1140     struct_ip_mreq_source
1141     struct_ipv6_mreq
1142     struct_pollfd
1143     struct_rusage_ru_maxrss
1144     struct_sockaddr_in6
1145     struct_sockaddr_sa_len
1146     struct_sockaddr_storage
1147     struct_v4l2_frmivalenum_discrete
1148     symver
1149     symver_asm_label
1150     symver_gnu_asm
1151     sysconf
1152     sysctl
1153     sys_mman_h
1154     sys_param_h
1155     sys_resource_h
1156     sys_select_h
1157     sys_soundcard_h
1158     sys_time_h
1159     sys_videoio_h
1160     threads
1161     trunc
1162     truncf
1163     unistd_h
1164     usleep
1165     vfp_args
1166     VirtualAlloc
1167     windows_h
1168     winsock2_h
1169     xform_asm
1170     xmm_clobbers
1171     yasm
1172 "
1173
1174 # options emitted with CONFIG_ prefix but not available on command line
1175 CONFIG_EXTRA="
1176     aandct
1177     avutil
1178     golomb
1179     gplv3
1180     h264chroma
1181     h264dsp
1182     h264pred
1183     h264qpel
1184     huffman
1185     lgplv3
1186     lpc
1187 "
1188
1189 CMDLINE_SELECT="
1190     $ARCH_EXT_LIST
1191     $CONFIG_LIST
1192     $THREADS_LIST
1193     asm
1194     cross_compile
1195     debug
1196     extra_warnings
1197     logging
1198     optimizations
1199     symver
1200     yasm
1201 "
1202
1203 PATHS_LIST='
1204     bindir
1205     datadir
1206     incdir
1207     libdir
1208     mandir
1209     prefix
1210     shlibdir
1211 '
1212
1213 CMDLINE_SET="
1214     $PATHS_LIST
1215     ar
1216     arch
1217     as
1218     build_suffix
1219     cc
1220     cpu
1221     cross_prefix
1222     dep_cc
1223     extra_version
1224     host_cc
1225     host_cflags
1226     host_ldflags
1227     host_libs
1228     host_os
1229     ld
1230     logfile
1231     malloc_prefix
1232     nm
1233     optflags
1234     pkg_config
1235     samples
1236     sysinclude
1237     sysroot
1238     target_exec
1239     target_os
1240     target_path
1241 "
1242
1243 CMDLINE_APPEND="
1244     extra_cflags
1245 "
1246
1247 # code dependency declarations
1248
1249 # architecture extensions
1250
1251 armv5te_deps="arm"
1252 armv6_deps="arm"
1253 armv6t2_deps="arm"
1254 armvfp_deps="arm"
1255 neon_deps="arm"
1256 vfpv3_deps="armvfp"
1257
1258 mmi_deps="mips"
1259
1260 altivec_deps="ppc"
1261 ppc4xx_deps="ppc"
1262
1263 vis_deps="sparc"
1264
1265 x86_64_suggest="cmov fast_cmov"
1266 amd3dnow_deps="mmx"
1267 amd3dnowext_deps="amd3dnow"
1268 mmx_deps="x86"
1269 mmx2_deps="mmx"
1270 sse_deps="mmx"
1271 ssse3_deps="sse"
1272 avx_deps="ssse3"
1273
1274 aligned_stack_if_any="ppc x86"
1275 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1276 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1277 fast_unaligned_if_any="armv6 ppc x86"
1278
1279 inline_asm_deps="!tms470"
1280 need_memalign="altivec neon sse"
1281
1282 symver_if_any="symver_asm_label symver_gnu_asm"
1283
1284 # subsystems
1285 dct_select="rdft"
1286 mdct_select="fft"
1287 rdft_select="fft"
1288 mpegaudiodsp_select="dct"
1289
1290 # decoders / encoders / hardware accelerators
1291 aac_decoder_select="mdct sinewin"
1292 aac_encoder_select="mdct sinewin"
1293 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1294 ac3_decoder_select="mdct ac3dsp ac3_parser"
1295 ac3_encoder_select="mdct ac3dsp"
1296 ac3_fixed_encoder_select="mdct ac3dsp"
1297 alac_encoder_select="lpc"
1298 amrnb_decoder_select="lsp"
1299 amrwb_decoder_select="lsp"
1300 atrac1_decoder_select="mdct sinewin"
1301 atrac3_decoder_select="mdct"
1302 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1303 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1304 cavs_decoder_select="golomb"
1305 cook_decoder_select="mdct sinewin"
1306 cscd_decoder_suggest="zlib"
1307 dca_decoder_select="mdct"
1308 dnxhd_encoder_select="aandct"
1309 dxa_decoder_select="zlib"
1310 eac3_decoder_select="ac3_decoder"
1311 eac3_encoder_select="mdct ac3dsp"
1312 eamad_decoder_select="aandct"
1313 eatgq_decoder_select="aandct"
1314 eatqi_decoder_select="aandct"
1315 ffv1_decoder_select="golomb"
1316 flac_decoder_select="golomb"
1317 flac_encoder_select="golomb lpc"
1318 flashsv_decoder_select="zlib"
1319 flashsv_encoder_select="zlib"
1320 flashsv2_decoder_select="zlib"
1321 flv_decoder_select="h263_decoder"
1322 flv_encoder_select="h263_encoder"
1323 fraps_decoder_select="huffman"
1324 h261_encoder_select="aandct"
1325 h263_decoder_select="h263_parser"
1326 h263_encoder_select="aandct"
1327 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1328 h263i_decoder_select="h263_decoder"
1329 h263p_encoder_select="h263_encoder"
1330 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1331 h264_dxva2_hwaccel_deps="dxva2api_h"
1332 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1333 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1334 h264_vda_hwaccel_select="vda h264_decoder"
1335 h264_vdpau_decoder_select="vdpau h264_decoder"
1336 iac_decoder_select="fft mdct sinewin"
1337 imc_decoder_select="fft mdct sinewin"
1338 jpegls_decoder_select="golomb"
1339 jpegls_encoder_select="golomb"
1340 ljpeg_encoder_select="aandct"
1341 loco_decoder_select="golomb"
1342 mjpeg_encoder_select="aandct"
1343 mlp_decoder_select="mlp_parser"
1344 mp1_decoder_select="mpegaudiodsp"
1345 mp1float_decoder_select="mpegaudiodsp"
1346 mp2_decoder_select="mpegaudiodsp"
1347 mp2float_decoder_select="mpegaudiodsp"
1348 mp3_decoder_select="mpegaudiodsp"
1349 mp3adu_decoder_select="mpegaudiodsp"
1350 mp3adufloat_decoder_select="mpegaudiodsp"
1351 mp3float_decoder_select="mpegaudiodsp"
1352 mp3on4_decoder_select="mpegaudiodsp"
1353 mp3on4float_decoder_select="mpegaudiodsp"
1354 mpc7_decoder_select="mpegaudiodsp"
1355 mpc8_decoder_select="mpegaudiodsp"
1356 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1357 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1358 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1359 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1360 mpeg1video_encoder_select="aandct"
1361 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1362 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1363 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1364 mpeg2video_encoder_select="aandct"
1365 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1366 mpeg4_encoder_select="h263_encoder"
1367 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1368 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1369 msmpeg4v1_decoder_select="h263_decoder"
1370 msmpeg4v1_encoder_select="h263_encoder"
1371 msmpeg4v2_decoder_select="h263_decoder"
1372 msmpeg4v2_encoder_select="h263_encoder"
1373 msmpeg4v3_decoder_select="h263_decoder"
1374 msmpeg4v3_encoder_select="h263_encoder"
1375 nellymoser_decoder_select="mdct sinewin"
1376 nellymoser_encoder_select="mdct sinewin"
1377 png_decoder_select="zlib"
1378 png_encoder_select="zlib"
1379 qcelp_decoder_select="lsp"
1380 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1381 ra_144_encoder_select="lpc"
1382 ralf_decoder_select="golomb"
1383 rv10_decoder_select="h263_decoder"
1384 rv10_encoder_select="h263_encoder"
1385 rv20_decoder_select="h263_decoder"
1386 rv20_encoder_select="h263_encoder"
1387 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1388 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1389 shorten_decoder_select="golomb"
1390 sipr_decoder_select="lsp"
1391 snow_decoder_select="dwt"
1392 snow_encoder_select="aandct dwt"
1393 svq1_encoder_select="aandct"
1394 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1395 svq3_decoder_suggest="zlib"
1396 theora_decoder_select="vp3_decoder"
1397 tiff_decoder_suggest="zlib"
1398 tiff_encoder_suggest="zlib"
1399 truehd_decoder_select="mlp_decoder"
1400 tscc_decoder_select="zlib"
1401 twinvq_decoder_select="mdct lsp sinewin"
1402 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1403 vc1_dxva2_hwaccel_deps="dxva2api_h"
1404 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1405 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1406 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1407 vc1image_decoder_select="vc1_decoder"
1408 vorbis_decoder_select="mdct"
1409 vorbis_encoder_select="mdct"
1410 vp6_decoder_select="huffman"
1411 vp6a_decoder_select="vp6_decoder"
1412 vp6f_decoder_select="vp6_decoder"
1413 vp8_decoder_select="h264pred h264qpel"
1414 wmapro_decoder_select="mdct sinewin"
1415 wmav1_decoder_select="mdct sinewin"
1416 wmav1_encoder_select="mdct sinewin"
1417 wmav2_decoder_select="mdct sinewin"
1418 wmav2_encoder_select="mdct sinewin"
1419 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1420 wmv1_decoder_select="h263_decoder"
1421 wmv1_encoder_select="h263_encoder"
1422 wmv2_decoder_select="h263_decoder"
1423 wmv2_encoder_select="h263_encoder"
1424 wmv3_decoder_select="vc1_decoder"
1425 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1426 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1427 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1428 wmv3image_decoder_select="wmv3_decoder"
1429 zerocodec_decoder_select="zlib"
1430 zlib_decoder_select="zlib"
1431 zlib_encoder_select="zlib"
1432 zmbv_decoder_select="zlib"
1433 zmbv_encoder_select="zlib"
1434
1435 vaapi_deps="va_va_h"
1436 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1437 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1438
1439 # parsers
1440 h264_parser_select="golomb h264dsp h264pred"
1441
1442 # external libraries
1443 libfaac_encoder_deps="libfaac"
1444 libgsm_decoder_deps="libgsm"
1445 libgsm_encoder_deps="libgsm"
1446 libgsm_ms_decoder_deps="libgsm"
1447 libgsm_ms_encoder_deps="libgsm"
1448 libilbc_decoder_deps="libilbc"
1449 libilbc_encoder_deps="libilbc"
1450 libmp3lame_encoder_deps="libmp3lame"
1451 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1452 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1453 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1454 libopenjpeg_decoder_deps="libopenjpeg"
1455 libschroedinger_decoder_deps="libschroedinger"
1456 libschroedinger_encoder_deps="libschroedinger"
1457 libspeex_decoder_deps="libspeex"
1458 libspeex_encoder_deps="libspeex"
1459 libtheora_encoder_deps="libtheora"
1460 libvo_aacenc_encoder_deps="libvo_aacenc"
1461 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1462 libvorbis_encoder_deps="libvorbis"
1463 libvpx_decoder_deps="libvpx"
1464 libvpx_encoder_deps="libvpx"
1465 libx264_encoder_deps="libx264"
1466 libxavs_encoder_deps="libxavs"
1467 libxvid_encoder_deps="libxvid"
1468
1469 # demuxers / muxers
1470 ac3_demuxer_select="ac3_parser"
1471 asf_stream_muxer_select="asf_muxer"
1472 avisynth_demuxer_deps="avisynth"
1473 dirac_demuxer_select="dirac_parser"
1474 eac3_demuxer_select="ac3_parser"
1475 flac_demuxer_select="flac_parser"
1476 ipod_muxer_select="mov_muxer"
1477 matroska_audio_muxer_select="matroska_muxer"
1478 matroska_demuxer_suggest="zlib bzlib"
1479 mov_demuxer_suggest="zlib"
1480 mp3_demuxer_select="mpegaudio_parser"
1481 mp4_muxer_select="mov_muxer"
1482 mpegts_muxer_select="adts_muxer latm_muxer"
1483 mpegtsraw_demuxer_select="mpegts_demuxer"
1484 mxf_d10_muxer_select="mxf_muxer"
1485 ogg_demuxer_select="golomb"
1486 psp_muxer_select="mov_muxer"
1487 rtp_demuxer_select="sdp_demuxer"
1488 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1489 rtsp_demuxer_select="http_protocol rtpdec"
1490 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1491 sap_demuxer_select="sdp_demuxer"
1492 sap_muxer_select="rtp_muxer rtp_protocol"
1493 sdp_demuxer_select="rtpdec"
1494 spdif_muxer_select="aac_parser"
1495 tg2_muxer_select="mov_muxer"
1496 tgp_muxer_select="mov_muxer"
1497 w64_demuxer_deps="wav_demuxer"
1498
1499 # indevs / outdevs
1500 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1501 alsa_outdev_deps="alsa_asoundlib_h"
1502 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1503 dv1394_indev_deps="dv1394 dv_demuxer"
1504 fbdev_indev_deps="linux_fb_h"
1505 jack_indev_deps="jack_jack_h"
1506 libcdio_indev_deps="libcdio"
1507 libdc1394_indev_deps="libdc1394"
1508 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1509 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1510 pulse_indev_deps="libpulse"
1511 sndio_indev_deps="sndio_h"
1512 sndio_outdev_deps="sndio_h"
1513 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1514 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1515 vfwcap_indev_extralibs="-lavicap32"
1516 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1517
1518 # protocols
1519 gopher_protocol_deps="network"
1520 httpproxy_protocol_deps="network"
1521 httpproxy_protocol_select="tcp_protocol"
1522 http_protocol_deps="network"
1523 http_protocol_select="tcp_protocol"
1524 https_protocol_select="tls_protocol"
1525 librtmp_protocol_deps="librtmp"
1526 librtmpe_protocol_deps="librtmp"
1527 librtmps_protocol_deps="librtmp"
1528 librtmpt_protocol_deps="librtmp"
1529 librtmpte_protocol_deps="librtmp"
1530 mmsh_protocol_select="http_protocol"
1531 mmst_protocol_deps="network"
1532 rtmp_protocol_deps="!librtmp_protocol"
1533 rtmp_protocol_select="tcp_protocol"
1534 rtmphttp_protocol_deps="!librtmp_protocol"
1535 rtmphttp_protocol_select="http_protocol"
1536 rtmpt_protocol_deps="!librtmp_protocol"
1537 rtmpt_protocol_select="rtmphttp_protocol"
1538 rtp_protocol_select="udp_protocol"
1539 sctp_protocol_deps="network netinet_sctp_h"
1540 tcp_protocol_deps="network"
1541 tls_protocol_deps_any="openssl gnutls"
1542 tls_protocol_select="tcp_protocol"
1543 udp_protocol_deps="network"
1544
1545 # filters
1546 blackframe_filter_deps="gpl"
1547 boxblur_filter_deps="gpl"
1548 cropdetect_filter_deps="gpl"
1549 delogo_filter_deps="gpl"
1550 drawtext_filter_deps="libfreetype"
1551 frei0r_filter_deps="frei0r dlopen strtok_r"
1552 frei0r_filter_extralibs='$ldl'
1553 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1554 frei0r_src_filter_extralibs='$ldl'
1555 hqdn3d_filter_deps="gpl"
1556 resample_filter_deps="avresample"
1557 ocv_filter_deps="libopencv"
1558 scale_filter_deps="swscale"
1559 yadif_filter_deps="gpl"
1560
1561 # libraries
1562 avdevice_deps="avcodec avformat"
1563 avformat_deps="avcodec"
1564
1565 # programs
1566 avconv_deps="avcodec avfilter avformat avresample swscale
1567              aformat_filter asyncts_filter
1568              format_filter fps_filter scale_filter setpts_filter"
1569 avplay_deps="avcodec avformat swscale sdl"
1570 avplay_select="rdft"
1571 avprobe_deps="avcodec avformat"
1572 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1573 avserver_extralibs='$ldl'
1574
1575 doc_deps="texi2html"
1576
1577 # tests
1578
1579 test_deps(){
1580     suf1=$1
1581     suf2=$2
1582     shift 2
1583     for v; do
1584         dep=${v%=*}
1585         tests=${v#*=}
1586         for name in ${tests}; do
1587             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1588         done
1589     done
1590 }
1591
1592 mxf_d10_test_deps="avfilter"
1593 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1594
1595 test_deps _muxer _demuxer                                               \
1596     aiff                                                                \
1597     pcm_alaw=alaw                                                       \
1598     asf                                                                 \
1599     au                                                                  \
1600     avi                                                                 \
1601     dv=dv_fmt                                                           \
1602     ffm                                                                 \
1603     flv=flv_fmt                                                         \
1604     gxf                                                                 \
1605     matroska=mkv                                                        \
1606     mmf                                                                 \
1607     mov                                                                 \
1608     pcm_mulaw=mulaw                                                     \
1609     mxf="mxf mxf_d10"                                                   \
1610     nut                                                                 \
1611     ogg                                                                 \
1612     rawvideo=pixfmt                                                     \
1613     rm                                                                  \
1614     swf                                                                 \
1615     mpegts=ts                                                           \
1616     voc                                                                 \
1617     wav                                                                 \
1618     yuv4mpegpipe=yuv4mpeg                                               \
1619
1620 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1621
1622 # default parameters
1623
1624 logfile="config.log"
1625
1626 # installation paths
1627 prefix_default="/usr/local"
1628 bindir_default='${prefix}/bin'
1629 datadir_default='${prefix}/share/avconv'
1630 incdir_default='${prefix}/include'
1631 libdir_default='${prefix}/lib'
1632 mandir_default='${prefix}/share/man'
1633 shlibdir_default="$libdir_default"
1634
1635 # toolchain
1636 ar_default="ar"
1637 cc_default="gcc"
1638 cc_version=\"unknown\"
1639 host_cc_default="gcc"
1640 ln_s="ln -sf"
1641 nm_default="nm"
1642 objformat="elf"
1643 pkg_config_default=pkg-config
1644 ranlib="ranlib"
1645 yasmexe="yasm"
1646
1647 nm_opts='-g'
1648 nogas=":"
1649
1650 # machine
1651 arch_default=$(uname -m)
1652 cpu="generic"
1653
1654 # OS
1655 target_os_default=$(tolower $(uname -s))
1656 host_os=$target_os_default
1657
1658 # configurable options
1659 enable $PROGRAM_LIST
1660
1661 enable avcodec
1662 enable avdevice
1663 enable avfilter
1664 enable avformat
1665 enable avresample
1666 enable avutil
1667 enable swscale
1668
1669 enable asm
1670 enable debug
1671 enable doc
1672 enable fastdiv
1673 enable network
1674 enable optimizations
1675 enable safe_bitstream_reader
1676 enable static
1677 enable swscale_alpha
1678
1679 # build settings
1680 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1681 AVSERVERLDFLAGS=-Wl,-E
1682 LIBPREF="lib"
1683 LIBSUF=".a"
1684 FULLNAME='$(NAME)$(BUILDSUF)'
1685 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1686 SLIBPREF="lib"
1687 SLIBSUF=".so"
1688 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1689 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1690 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1691 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1692 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1693 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1694
1695 AS_O='-o $@'
1696 CC_O='-o $@'
1697
1698 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1699 host_libs='-lm'
1700
1701 target_path='$(CURDIR)'
1702
1703 # since the object filename is not given with the -MM flag, the compiler
1704 # is only able to print the basename, and we must add the path ourselves
1705 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1706 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1707
1708 # find source path
1709 if test -f configure; then
1710     source_path=.
1711 else
1712     source_path=$(cd $(dirname "$0"); pwd)
1713     echo "$source_path" | grep -q '[[:blank:]]' &&
1714         die "Out of tree builds are impossible with whitespace in source path."
1715     test -e "$source_path/config.h" &&
1716         die "Out of tree builds are impossible with config.h in source dir."
1717 fi
1718
1719 for v in "$@"; do
1720     r=${v#*=}
1721     l=${v%"$r"}
1722     r=$(sh_quote "$r")
1723     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1724 done
1725
1726 find_things(){
1727     thing=$1
1728     pattern=$2
1729     file=$source_path/$3
1730     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1731 }
1732
1733 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1734 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1735 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1736 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1737 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1738 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1739 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1740 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1741 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1742 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1743 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1744
1745 ALL_COMPONENTS="
1746     $BSF_LIST
1747     $DECODER_LIST
1748     $DEMUXER_LIST
1749     $ENCODER_LIST
1750     $FILTER_LIST
1751     $HWACCEL_LIST
1752     $INDEV_LIST
1753     $MUXER_LIST
1754     $OUTDEV_LIST
1755     $PARSER_LIST
1756     $PROTOCOL_LIST
1757 "
1758
1759 find_tests(){
1760     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1761 }
1762
1763 LAVF_TESTS=$(find_tests lavf)
1764 LAVFI_TESTS=$(find_tests lavfi)
1765 SEEK_TESTS=$(find_tests seek seek_)
1766
1767 ALL_TESTS="$LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1768
1769 for n in $COMPONENT_LIST; do
1770     v=$(toupper ${n%s})_LIST
1771     eval enable \$$v
1772     eval ${n}_if_any="\$$v"
1773 done
1774
1775 enable $ARCH_EXT_LIST $ALL_TESTS
1776
1777 die_unknown(){
1778     echo "Unknown option \"$1\"."
1779     echo "See $0 --help for available options."
1780     exit 1
1781 }
1782
1783 show_list() {
1784     suffix=_$1
1785     shift
1786     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1787     exit 0
1788 }
1789
1790 for opt do
1791     optval="${opt#*=}"
1792     case "$opt" in
1793     --extra-ldflags=*) add_ldflags $optval
1794     ;;
1795     --extra-libs=*) add_extralibs $optval
1796     ;;
1797     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1798     ;;
1799     --enable-debug=*) debuglevel="$optval"
1800     ;;
1801     --disable-everything)
1802     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1803     ;;
1804     --enable-*=*|--disable-*=*)
1805     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1806     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1807     eval list=\$$(toupper $thing)_LIST
1808     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1809     $action $(filter "$name" $list)
1810     ;;
1811     --enable-?*|--disable-?*)
1812     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1813     if is_in $option $COMPONENT_LIST; then
1814         test $action = disable && action=unset
1815         eval $action \$$(toupper ${option%s})_LIST
1816     elif is_in $option $CMDLINE_SELECT; then
1817         $action $option
1818     else
1819         die_unknown $opt
1820     fi
1821     ;;
1822     --list-*)
1823         NAME="${opt#--list-}"
1824         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1825         NAME=${NAME%s}
1826         eval show_list $NAME \$$(toupper $NAME)_LIST
1827     ;;
1828     --help|-h) show_help
1829     ;;
1830     *)
1831     optname="${opt%%=*}"
1832     optname="${optname#--}"
1833     optname=$(echo "$optname" | sed 's/-/_/g')
1834     if is_in $optname $CMDLINE_SET; then
1835         eval $optname='$optval'
1836     elif is_in $optname $CMDLINE_APPEND; then
1837         append $optname "$optval"
1838     else
1839          die_unknown $opt
1840     fi
1841     ;;
1842     esac
1843 done
1844
1845 disabled logging && logfile=/dev/null
1846
1847 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1848 set >> $logfile
1849
1850 test -n "$cross_prefix" && enable cross_compile
1851
1852 if enabled cross_compile; then
1853     test -n "$arch" && test -n "$target_os" ||
1854         die "Must specify target arch and OS when cross-compiling"
1855 fi
1856
1857 set_default arch target_os
1858
1859 ar_default="${cross_prefix}${ar_default}"
1860 cc_default="${cross_prefix}${cc_default}"
1861 nm_default="${cross_prefix}${nm_default}"
1862 pkg_config_default="${cross_prefix}${pkg_config_default}"
1863 ranlib="${cross_prefix}${ranlib}"
1864
1865 sysinclude_default="${sysroot}/usr/include"
1866
1867 set_default cc nm pkg_config sysinclude
1868 enabled cross_compile || host_cc_default=$cc
1869 set_default host_cc
1870
1871 if ! $pkg_config --version >/dev/null 2>&1; then
1872     warn "$pkg_config not found, library detection may fail."
1873     pkg_config=false
1874 fi
1875
1876 exesuf() {
1877     case $1 in
1878         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1879     esac
1880 }
1881
1882 EXESUF=$(exesuf $target_os)
1883 HOSTEXESUF=$(exesuf $host_os)
1884
1885 # set temporary file name
1886 : ${TMPDIR:=$TEMPDIR}
1887 : ${TMPDIR:=$TMP}
1888 : ${TMPDIR:=/tmp}
1889
1890 if ! check_cmd mktemp -u XXXXXX; then
1891     # simple replacement for missing mktemp
1892     # NOT SAFE FOR GENERAL USE
1893     mktemp(){
1894         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1895     }
1896 fi
1897
1898 tmpfile(){
1899     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1900         (set -C; exec > $tmp) 2>/dev/null ||
1901         die "Unable to create temporary file in $TMPDIR."
1902     append TMPFILES $tmp
1903     eval $1=$tmp
1904 }
1905
1906 trap 'rm -f -- $TMPFILES' EXIT
1907
1908 tmpfile TMPASM .asm
1909 tmpfile TMPC   .c
1910 tmpfile TMPE   $EXESUF
1911 tmpfile TMPH   .h
1912 tmpfile TMPO   .o
1913 tmpfile TMPS   .S
1914 tmpfile TMPSH  .sh
1915 tmpfile TMPV   .ver
1916
1917 unset -f mktemp
1918
1919 chmod +x $TMPE
1920
1921 # make sure we can execute files in $TMPDIR
1922 cat > $TMPSH 2>> $logfile <<EOF
1923 #! /bin/sh
1924 EOF
1925 chmod +x $TMPSH >> $logfile 2>&1
1926 if ! $TMPSH >> $logfile 2>&1; then
1927     cat <<EOF
1928 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1929 variable to another directory and make sure that it is not mounted noexec.
1930 EOF
1931     die "Sanity test failed."
1932 fi
1933
1934 filter_asflags=echo
1935 filter_cflags=echo
1936 filter_cppflags=echo
1937
1938 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1939     cc_type=llvm_gcc
1940     cc_version=__VERSION__
1941     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1942     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1943     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1944     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1945     speed_cflags='-O3'
1946     size_cflags='-Os'
1947 elif $cc -v 2>&1 | grep -qi ^gcc; then
1948     cc_type=gcc
1949     cc_version=__VERSION__
1950     gcc_version=$($cc --version | head -n1)
1951     gcc_basever=$($cc -dumpversion)
1952     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1953     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1954     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1955     if ! $cc -dumpversion | grep -q '^2\.'; then
1956         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1957         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1958     fi
1959     speed_cflags='-O3'
1960     size_cflags='-Os'
1961 elif $cc --version 2>/dev/null | grep -q Intel; then
1962     cc_type=icc
1963     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1964     cc_ident=$($cc --version | head -n1)
1965     icc_version=$($cc -dumpversion)
1966     CC_DEPFLAGS='-MMD'
1967     AS_DEPFLAGS='-MMD'
1968     speed_cflags='-O3'
1969     size_cflags='-Os'
1970     noopt_cflags='-O1'
1971 elif $cc -v 2>&1 | grep -q xlc; then
1972     cc_type=xlc
1973     cc_version="AV_STRINGIFY(__IBMC__)"
1974     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1975     speed_cflags='-O5'
1976     size_cflags='-O5 -qcompact'
1977 elif $cc -V 2>/dev/null | grep -q Compaq; then
1978     cc_type=ccc
1979     cc_version="AV_STRINGIFY(__DECC_VER)"
1980     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1981     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1982     debuglevel=3
1983     add_ldflags -Wl,-z,now # calls to libots crash without this
1984     speed_cflags='-fast'
1985     size_cflags='-O1'
1986 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1987     test -d "$sysroot" || die "No valid sysroot specified."
1988     cc_type=armcc
1989     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1990     cc_ident=$($cc --vsn | head -n1)
1991     armcc_conf="$PWD/armcc.conf"
1992     $cc --arm_linux_configure                 \
1993         --arm_linux_config_file="$armcc_conf" \
1994         --configure_sysroot="$sysroot"        \
1995         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1996         die "Error creating armcc configuration file."
1997     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1998     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1999     as_default="${cross_prefix}gcc"
2000     CC_DEPFLAGS='-MMD'
2001     AS_DEPFLAGS='-MMD'
2002     speed_cflags='-O3'
2003     size_cflags='-Os'
2004     filter_asflags="filter_out -W${armcc_opt}*"
2005 elif $cc -version 2>/dev/null | grep -q TMS470; then
2006     cc_type=tms470
2007     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2008     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2009     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2010     CC_O='-fr=$(@D)'
2011     as_default="${cross_prefix}gcc"
2012     ld_default="${cross_prefix}gcc"
2013     TMPO=$(basename $TMPC .c).o
2014     append TMPFILES $TMPO
2015     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2016     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2017     AS_DEPFLAGS='-MMD'
2018     speed_cflags='-O3 -mf=5'
2019     size_cflags='-O3 -mf=2'
2020     filter_cflags=tms470_flags
2021     tms470_flags(){
2022         for flag; do
2023             case $flag in
2024                 -march=*|-mcpu=*)
2025                     case "${flag#*=}" in
2026                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2027                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2028                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2029                         armv6*|arm11*)          echo -mv=6   ;;
2030                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2031                                                 echo -mv=5e  ;;
2032                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2033                     esac
2034                     ;;
2035                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2036                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2037                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2038                 -msoft-float)   echo --float_support=vfplib       ;;
2039                 -O[0-3]|-mf=*)  echo $flag                        ;;
2040                 -g)             echo -g -mn                       ;;
2041                 -pds=*)         echo $flag                        ;;
2042             esac
2043         done
2044     }
2045 elif $cc -v 2>&1 | grep -q clang; then
2046     cc_type=clang
2047     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2048         cc_version=__clang_version__ || cc_version=__VERSION__
2049     cc_ident=$($cc --version | head -n1)
2050     CC_DEPFLAGS='-MMD'
2051     AS_DEPFLAGS='-MMD'
2052     speed_cflags='-O3'
2053     size_cflags='-Os'
2054 elif $cc -V 2>&1 | grep -q Sun; then
2055     cc_type=suncc
2056     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2057     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2058     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2059     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2060     add_ldflags -xc99
2061     speed_cflags='-O5'
2062     size_cflags='-O5 -xspace'
2063     filter_cflags=suncc_flags
2064     suncc_flags(){
2065         for flag; do
2066             case $flag in
2067                 -march=*|-mcpu=*)
2068                     case "${flag#*=}" in
2069                         native)                   echo -xtarget=native       ;;
2070                         v9|niagara)               echo -xarch=sparc          ;;
2071                         ultrasparc)               echo -xarch=sparcvis       ;;
2072                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2073                         i586|pentium)             echo -xchip=pentium        ;;
2074                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2075                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2076                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2077                         pentium4*)          echo -xtarget=pentium4           ;;
2078                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2079                         *-sse3)             echo -xarch=sse3                 ;;
2080                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2081                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2082                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2083                         k8|opteron|athlon64|athlon-fx)
2084                                                   echo -xarch=sse2a          ;;
2085                         athlon*)                  echo -xarch=pentium_proa   ;;
2086                     esac
2087                     ;;
2088                 -std=c99)             echo -xc99              ;;
2089                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2090                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2091                 -W*,*)                echo $flag              ;;
2092                 -f*-*|-W*)                                    ;;
2093                 *)                    echo $flag              ;;
2094             esac
2095         done
2096     }
2097 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2098     cc_type=pathscale
2099     cc_version=__PATHSCALE__
2100     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2101     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2102     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2103     speed_cflags='-O2'
2104     size_cflags='-Os'
2105     filter_cflags='filter_out -Wdisabled-optimization'
2106 elif $cc -v 2>&1 | grep -q Open64; then
2107     cc_type=open64
2108     cc_version=__OPEN64__
2109     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2110     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2111     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2112     speed_cflags='-O2'
2113     size_cflags='-Os'
2114     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2115 elif $cc -V 2>&1 | grep -q Portland; then
2116     cc_type=pgi
2117     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2118     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2119     opt_common='-alias=ansi -Mlre -Mpre'
2120     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2121     size_cflags="-O2 -Munroll=c:1 $opt_common"
2122     noopt_cflags="-O1"
2123     filter_cflags=pgi_flags
2124     pgi_flags(){
2125         for flag; do
2126             case $flag in
2127                 -fomit-frame-pointer) echo -Mnoframe ;;
2128                 -g)                   echo -gopt ;;
2129                 *)                    echo $flag ;;
2130             esac
2131         done
2132     }
2133 fi
2134
2135 test -n "$cc_type" && enable $cc_type ||
2136     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2137
2138 : ${as_default:=$cc}
2139 : ${dep_cc_default:=$cc}
2140 : ${ld_default:=$cc}
2141 set_default ar as dep_cc ld
2142
2143 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2144 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2145
2146 add_cflags $extra_cflags
2147 add_asflags $extra_cflags
2148
2149 if test -n "$sysroot"; then
2150     case "$cc_type" in
2151         gcc|llvm_gcc|clang)
2152             add_cppflags --sysroot="$sysroot"
2153             add_ldflags --sysroot="$sysroot"
2154         ;;
2155         tms470)
2156             add_cppflags -I"$sysinclude"
2157             add_ldflags  --sysroot="$sysroot"
2158         ;;
2159     esac
2160 fi
2161
2162 if test "$cpu" = host; then
2163     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2164
2165     case "$cc_type" in
2166         gcc|llvm_gcc)
2167             check_native(){
2168                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2169                 sed -n "/cc1.*$1=/{
2170                             s/.*$1=\\([^ ]*\\).*/\\1/
2171                             p
2172                             q
2173                         }" $TMPE
2174             }
2175             cpu=$(check_native -march || check_native -mcpu)
2176         ;;
2177     esac
2178
2179     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2180 fi
2181
2182 # Deal with common $arch aliases
2183 case "$arch" in
2184     arm*)
2185         arch="arm"
2186     ;;
2187     mips|mipsel|IP*)
2188         arch="mips"
2189     ;;
2190     mips64*)
2191         arch="mips"
2192         subarch="mips64"
2193     ;;
2194     parisc|hppa)
2195         arch="parisc"
2196     ;;
2197     parisc64|hppa64)
2198         arch="parisc"
2199         subarch="parisc64"
2200     ;;
2201     "Power Macintosh"|ppc|powerpc)
2202         arch="ppc"
2203     ;;
2204     ppc64|powerpc64)
2205         arch="ppc"
2206         subarch="ppc64"
2207     ;;
2208     s390|s390x)
2209         arch="s390"
2210     ;;
2211     sh4|sh)
2212         arch="sh4"
2213     ;;
2214     sun4u|sparc64)
2215         arch="sparc"
2216         subarch="sparc64"
2217     ;;
2218     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2219         arch="x86"
2220     ;;
2221 esac
2222
2223 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2224 enable $arch
2225
2226 # Add processor-specific flags
2227 if test "$cpu" = generic; then
2228     : do nothing
2229 elif enabled ppc; then
2230
2231     case $(tolower $cpu) in
2232         601|ppc601|powerpc601)
2233             cpuflags="-mcpu=601"
2234             disable altivec
2235         ;;
2236         603*|ppc603*|powerpc603*)
2237             cpuflags="-mcpu=603"
2238             disable altivec
2239         ;;
2240         604*|ppc604*|powerpc604*)
2241             cpuflags="-mcpu=604"
2242             disable altivec
2243         ;;
2244         g3|75*|ppc75*|powerpc75*)
2245             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2246             disable altivec
2247         ;;
2248         g4|745*|ppc745*|powerpc745*)
2249             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2250         ;;
2251         74*|ppc74*|powerpc74*)
2252             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2253         ;;
2254         g5|970|ppc970|powerpc970)
2255             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2256         ;;
2257         power[3-7]*)
2258             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2259         ;;
2260         cell)
2261             cpuflags="-mcpu=cell"
2262             enable ldbrx
2263         ;;
2264         e500v2)
2265             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2266             disable altivec
2267         ;;
2268         e500)
2269             cpuflags="-mcpu=8540 -mhard-float"
2270             disable altivec
2271         ;;
2272     esac
2273
2274 elif enabled x86; then
2275
2276     case $cpu in
2277         i[345]86|pentium)
2278             cpuflags="-march=$cpu"
2279             disable mmx
2280         ;;
2281         # targets that do NOT support conditional mov (cmov)
2282         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2283             cpuflags="-march=$cpu"
2284             disable cmov
2285         ;;
2286         # targets that do support conditional mov (cmov)
2287         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2288             cpuflags="-march=$cpu"
2289             enable cmov
2290             enable fast_cmov
2291         ;;
2292         # targets that do support conditional mov but on which it's slow
2293         pentium4|pentium4m|prescott|nocona)
2294             cpuflags="-march=$cpu"
2295             enable cmov
2296             disable fast_cmov
2297         ;;
2298     esac
2299
2300 elif enabled sparc; then
2301
2302     case $cpu in
2303         niagara)
2304             cpuflags="-mcpu=$cpu"
2305             disable vis
2306         ;;
2307         sparc64)
2308             cpuflags="-mcpu=v9"
2309         ;;
2310     esac
2311
2312 elif enabled arm; then
2313
2314     case $cpu in
2315         armv*)
2316             cpuflags="-march=$cpu"
2317             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2318         ;;
2319         *)
2320             cpuflags="-mcpu=$cpu"
2321             case $cpu in
2322                 cortex-a*)                               subarch=armv7a  ;;
2323                 cortex-r*)                               subarch=armv7r  ;;
2324                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2325                 arm11*)                                  subarch=armv6   ;;
2326                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2327                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2328             esac
2329         ;;
2330     esac
2331
2332 elif enabled alpha; then
2333
2334     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2335
2336 elif enabled bfin; then
2337
2338     cpuflags="-mcpu=$cpu"
2339
2340 elif enabled mips; then
2341
2342     cpuflags="-march=$cpu"
2343
2344 elif enabled avr32; then
2345
2346     case $cpu in
2347         ap7[02]0[0-2])
2348             subarch="avr32_ap"
2349             cpuflags="-mpart=$cpu"
2350         ;;
2351         ap)
2352             subarch="avr32_ap"
2353             cpuflags="-march=$cpu"
2354         ;;
2355         uc3[ab]*)
2356             subarch="avr32_uc"
2357             cpuflags="-mcpu=$cpu"
2358         ;;
2359         uc)
2360             subarch="avr32_uc"
2361             cpuflags="-march=$cpu"
2362         ;;
2363     esac
2364
2365 fi
2366
2367 add_cflags $cpuflags
2368 add_asflags $cpuflags
2369
2370 # compiler sanity check
2371 check_exec <<EOF
2372 int main(void){ return 0; }
2373 EOF
2374 if test "$?" != 0; then
2375     echo "$cc is unable to create an executable file."
2376     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2377         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2378         echo "Only do this if you know what cross compiling means."
2379     fi
2380     die "C compiler test failed."
2381 fi
2382
2383 add_cppflags -D_ISOC99_SOURCE
2384 check_cflags -std=c99
2385 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2386 #include <stdlib.h>
2387 EOF
2388 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2389 #include <stdlib.h>
2390 EOF
2391
2392 check_host_cflags -std=c99
2393 check_host_cflags -Wall
2394
2395 case "$arch" in
2396     alpha|ia64|mips|parisc|sparc)
2397         spic=$shared
2398     ;;
2399     x86)
2400         subarch="x86_32"
2401         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2402         if test "$subarch" = "x86_64"; then
2403             spic=$shared
2404         fi
2405     ;;
2406 esac
2407
2408 enable $subarch
2409 enabled spic && enable pic
2410
2411 # OS specific
2412 case $target_os in
2413     haiku)
2414         prefix_default="/boot/common"
2415         network_extralibs="-lnetwork"
2416         host_libs=
2417         ;;
2418     sunos)
2419         AVSERVERLDFLAGS=""
2420         SHFLAGS='-shared -Wl,-h,$$(@F)'
2421         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2422         network_extralibs="-lsocket -lnsl"
2423         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2424         # When using suncc to build, the Solaris linker will mark
2425         # an executable with each instruction set encountered by
2426         # the Solaris assembler.  As our libraries contain their own
2427         # guards for processor-specific code, instead suppress
2428         # generation of the HWCAPS ELF section on Solaris x86 only.
2429         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2430         nm_opts='-P -g'
2431         ;;
2432     netbsd)
2433         disable symver
2434         oss_indev_extralibs="-lossaudio"
2435         oss_outdev_extralibs="-lossaudio"
2436         ;;
2437     openbsd)
2438         # On OpenBSD 4.5. the compiler does not use PIC unless
2439         # explicitly using -fPIC. Libav builds fine without PIC,
2440         # however the generated executable will not do anything
2441         # (simply quits with exit-code 1, no crash, no output).
2442         # Thus explicitly enable PIC here.
2443         enable pic
2444         disable symver
2445         SHFLAGS='-shared'
2446         oss_indev_extralibs="-lossaudio"
2447         oss_outdev_extralibs="-lossaudio"
2448         ;;
2449     dragonfly)
2450         disable symver
2451         ;;
2452     freebsd)
2453         ;;
2454     bsd/os)
2455         add_extralibs -lpoll -lgnugetopt
2456         ;;
2457     darwin)
2458         gas="gas-preprocessor.pl $cc"
2459         enabled ppc && add_asflags -force_cpusubtype_ALL
2460         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2461         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2462         add_ldflags -Wl,-dynamic,-search_paths_first
2463         SLIBSUF=".dylib"
2464         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2465         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2466         AVSERVERLDFLAGS=-Wl,-bind_at_load
2467         objformat="macho"
2468         enabled x86_64 && objformat="macho64"
2469         enabled_any pic shared ||
2470             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2471         ;;
2472     mingw32*)
2473         if test $target_os = "mingw32ce"; then
2474             disable network
2475         else
2476             target_os=mingw32
2477         fi
2478         LIBTARGET=i386
2479         if enabled x86_64; then
2480             LIBTARGET="i386:x86-64"
2481         elif enabled arm; then
2482             LIBTARGET=arm-wince
2483         fi
2484         shlibdir_default="$bindir_default"
2485         SLIBPREF=""
2486         SLIBSUF=".dll"
2487         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2488         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2489         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2490         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2491         SLIB_INSTALL_LINKS=
2492         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2493         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2494         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'
2495         objformat="win32"
2496         dlltool="${cross_prefix}dlltool"
2497         enable dos_paths
2498         check_cflags -fno-common
2499         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2500                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2501                 die "ERROR: MinGW runtime version must be >= 3.15."
2502         add_cppflags -U__STRICT_ANSI__
2503         ;;
2504     cygwin*)
2505         target_os=cygwin
2506         shlibdir_default="$bindir_default"
2507         SLIBPREF="cyg"
2508         SLIBSUF=".dll"
2509         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2510         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2511         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2512         objformat="win32"
2513         enable dos_paths
2514         check_cflags -fno-common
2515         add_cppflags -U__STRICT_ANSI__
2516         ;;
2517     *-dos|freedos|opendos)
2518         network_extralibs="-lsocket"
2519         objformat="coff"
2520         enable dos_paths
2521         add_cppflags -U__STRICT_ANSI__
2522         ;;
2523     linux)
2524         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2525         enable dv1394
2526         ;;
2527     irix*)
2528         target_os=irix
2529         ranlib="echo ignoring ranlib"
2530         ;;
2531     os/2*)
2532         ln_s="cp -f"
2533         objformat="aout"
2534         add_cppflags -D_GNU_SOURCE
2535         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2536         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2537         AVSERVERLDFLAGS=""
2538         LIBSUF="_s.a"
2539         SLIBPREF=""
2540         SLIBSUF=".dll"
2541         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2542         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2543         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2544           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2545           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2546           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2547           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2548           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2549         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2550           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2551         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2552         enable dos_paths
2553         ;;
2554     gnu/kfreebsd)
2555         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2556         ;;
2557     gnu)
2558         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2559         ;;
2560     qnx)
2561         add_cppflags -D_QNX_SOURCE
2562         network_extralibs="-lsocket"
2563         ;;
2564     symbian)
2565         SLIBSUF=".dll"
2566         enable dos_paths
2567         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2568         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2569         add_ldflags -Wl,--target1-abs,--no-undefined \
2570                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2571                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2572         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2573                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2574                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2575         ;;
2576     none)
2577         ;;
2578     *)
2579         die "Unknown OS '$target_os'."
2580         ;;
2581 esac
2582
2583 esc(){
2584     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2585 }
2586
2587 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
2588
2589 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2590
2591 set_default $PATHS_LIST
2592
2593 # we need to build at least one lib type
2594 if ! enabled_any static shared; then
2595     cat <<EOF
2596 At least one library type must be built.
2597 Specify --enable-static to build the static libraries or --enable-shared to
2598 build the shared libraries as well. To only build the shared libraries specify
2599 --disable-static in addition to --enable-shared.
2600 EOF
2601     exit 1;
2602 fi
2603
2604 die_license_disabled() {
2605     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2606 }
2607
2608 die_license_disabled gpl libcdio
2609 die_license_disabled gpl libx264
2610 die_license_disabled gpl libxavs
2611 die_license_disabled gpl libxvid
2612 die_license_disabled gpl x11grab
2613
2614 die_license_disabled nonfree libfaac
2615 die_license_disabled nonfree openssl
2616
2617 die_license_disabled version3 libopencore_amrnb
2618 die_license_disabled version3 libopencore_amrwb
2619 die_license_disabled version3 libvo_aacenc
2620 die_license_disabled version3 libvo_amrwbenc
2621
2622 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2623
2624 disabled optimizations || check_cflags -fomit-frame-pointer
2625
2626 enable_pic() {
2627     enable pic
2628     add_cppflags -DPIC
2629     add_cflags   -fPIC
2630     add_asflags  -fPIC
2631 }
2632
2633 enabled pic && enable_pic
2634
2635 check_cc <<EOF || die "Symbol mangling check failed."
2636 int ff_extern;
2637 EOF
2638 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2639 extern_prefix=${sym%%ff_extern*}
2640
2641 check_cc <<EOF && enable inline_asm
2642 void foo(void) { __asm__ volatile ("" ::); }
2643 EOF
2644
2645 _restrict=
2646 for restrict_keyword in restrict __restrict__ __restrict; do
2647     check_cc <<EOF && _restrict=$restrict_keyword && break
2648 void foo(char * $restrict_keyword p);
2649 EOF
2650 done
2651
2652 check_cc <<EOF && enable attribute_packed
2653 struct { int x; } __attribute__((packed)) x;
2654 EOF
2655
2656 check_cc <<EOF && enable attribute_may_alias
2657 union { int x; } __attribute__((may_alias)) x;
2658 EOF
2659
2660 check_cc <<EOF || die "endian test failed"
2661 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2662 EOF
2663 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2664
2665 if enabled alpha; then
2666
2667     check_cflags -mieee
2668
2669 elif enabled arm; then
2670
2671     enabled thumb && check_cflags -mthumb || check_cflags -marm
2672     nogas=die
2673
2674     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2675         enable vfp_args
2676     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2677         case "${cross_prefix:-$cc}" in
2678             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2679             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2680 __asm__ (".eabi_attribute 28, 1");
2681 int main(void) { return 0; }
2682 EOF
2683         esac
2684         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2685     fi
2686
2687     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2688     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2689     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2690     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2691     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2692     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2693
2694     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2695
2696     enabled_all armv6t2 shared !pic && enable_pic
2697
2698 elif enabled mips; then
2699
2700     check_asm loongson '"dmult.g $1, $2, $3"'
2701     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2702
2703 elif enabled ppc; then
2704
2705     enable local_aligned_8 local_aligned_16
2706
2707     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2708     check_asm ibm_asm   '"add 0, 0, 0"'
2709     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2710     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2711
2712     # AltiVec flags: The FSF version of GCC differs from the Apple version
2713     if enabled altivec; then
2714         nogas=warn
2715         check_cflags -maltivec -mabi=altivec &&
2716         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2717         check_cflags -faltivec
2718
2719         # check if our compiler supports Motorola AltiVec C API
2720         check_cc <<EOF || disable altivec
2721 $inc_altivec_h
2722 int main(void) {
2723     vector signed int v1, v2, v3;
2724     v1 = vec_add(v2,v3);
2725     return 0;
2726 }
2727 EOF
2728
2729         # check if our compiler supports braces for vector declarations
2730         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2731 $inc_altivec_h
2732 int main (void) { (vector int) {1}; return 0; }
2733 EOF
2734     fi
2735
2736 elif enabled sparc; then
2737
2738     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2739         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2740
2741 elif enabled x86; then
2742
2743     enable local_aligned_8 local_aligned_16
2744
2745     # check whether EBP is available on x86
2746     # As 'i' is stored on the stack, this program will crash
2747     # if the base pointer is used to access it because the
2748     # base pointer is cleared in the inline assembly code.
2749     check_exec_crash <<EOF && enable ebp_available
2750     volatile int i=0;
2751     __asm__ volatile (
2752         "xorl %%ebp, %%ebp"
2753     ::: "%ebp");
2754     return i;
2755 EOF
2756
2757     # check whether EBX is available on x86
2758     check_asm ebx_available '""::"b"(0)' &&
2759         check_asm ebx_available '"":::"%ebx"'
2760
2761     # check whether xmm clobbers are supported
2762     check_asm xmm_clobbers '"":::"%xmm0"'
2763
2764     # check whether binutils is new enough to compile SSSE3/MMX2
2765     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2766     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2767
2768     if ! disabled_any asm mmx yasm; then
2769         if check_cmd $yasmexe --version; then
2770             enabled x86_64 && yasm_extra="-m amd64"
2771             yasm_debug="-g dwarf2"
2772         elif check_cmd nasm -v; then
2773             yasmexe=nasm
2774             yasm_debug="-g -F dwarf"
2775             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2776         fi
2777
2778         YASMFLAGS="-f $objformat $yasm_extra"
2779         enabled pic               && append YASMFLAGS "-DPIC"
2780         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2781         case "$objformat" in
2782             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2783         esac
2784
2785         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2786             die "yasm not found, use --disable-yasm for a crippled build"
2787         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2788     fi
2789
2790     case "$cpu" in
2791         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2792             disable fast_clz
2793         ;;
2794     esac
2795
2796 fi
2797
2798 if enabled asm; then
2799     as=${gas:=$as}
2800     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2801         $nogas "GNU assembler not found, install gas-preprocessor"
2802 fi
2803
2804 check_ldflags -Wl,--as-needed
2805
2806 if check_func dlopen; then
2807     ldl=
2808 elif check_func dlopen -ldl; then
2809     ldl=-ldl
2810 fi
2811
2812 if enabled network; then
2813     check_type "sys/types.h sys/socket.h" socklen_t
2814     check_type netdb.h "struct addrinfo"
2815     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
2816     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
2817     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2818     check_type netinet/in.h "struct sockaddr_in6"
2819     check_type poll.h "struct pollfd"
2820     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2821     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2822     check_header netinet/sctp.h
2823     # Prefer arpa/inet.h over winsock2
2824     if check_header arpa/inet.h ; then
2825         check_func closesocket
2826     elif check_header winsock2.h ; then
2827         check_func_headers winsock2.h closesocket -lws2 && \
2828             network_extralibs="-lws2" || \
2829         { check_func_headers winsock2.h closesocket -lws2_32 && \
2830             network_extralibs="-lws2_32"; }
2831         check_type ws2tcpip.h socklen_t
2832         check_type ws2tcpip.h "struct addrinfo"
2833         check_type ws2tcpip.h "struct group_source_req"
2834         check_type ws2tcpip.h "struct ip_mreq_source"
2835         check_type ws2tcpip.h "struct ipv6_mreq"
2836         check_type winsock2.h "struct pollfd"
2837         check_type ws2tcpip.h "struct sockaddr_in6"
2838         check_type ws2tcpip.h "struct sockaddr_storage"
2839         check_struct winsock2.h "struct sockaddr" sa_len
2840     else
2841         disable network
2842     fi
2843 fi
2844
2845 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2846 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2847
2848 check_func  fcntl
2849 check_func  fork
2850 check_func  getaddrinfo $network_extralibs
2851 check_func  gethrtime
2852 check_func  getrusage
2853 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2854 check_func  gettimeofday
2855 check_func  inet_aton $network_extralibs
2856 check_func  isatty
2857 check_func  localtime_r
2858 check_func  ${malloc_prefix}memalign            && enable memalign
2859 check_func  mkstemp
2860 check_func  mmap
2861 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2862 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
2863 check_func  setrlimit
2864 check_func  strerror_r
2865 check_func  strptime
2866 check_func  strtok_r
2867 check_func  sched_getaffinity
2868 check_func  sysconf
2869 check_func  sysctl
2870 check_func  usleep
2871 check_func_headers io.h setmode
2872 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2873 check_func_headers windows.h GetProcessAffinityMask
2874 check_func_headers windows.h GetProcessTimes
2875 check_func_headers windows.h GetSystemTimeAsFileTime
2876 check_func_headers windows.h MapViewOfFile
2877 check_func_headers windows.h Sleep
2878 check_func_headers windows.h VirtualAlloc
2879
2880 check_header dlfcn.h
2881 check_header dxva.h
2882 check_header dxva2api.h
2883 check_header io.h
2884 check_header malloc.h
2885 check_header poll.h
2886 check_header sys/mman.h
2887 check_header sys/param.h
2888 check_header sys/resource.h
2889 check_header sys/select.h
2890 check_header sys/time.h
2891 check_header unistd.h
2892 check_header vdpau/vdpau.h
2893 check_header vdpau/vdpau_x11.h
2894 check_header windows.h
2895 check_header X11/extensions/XvMClib.h
2896
2897 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2898 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2899
2900 if ! disabled w32threads && ! enabled pthreads; then
2901     check_func _beginthreadex && enable w32threads
2902 fi
2903
2904 # check for some common methods of building with pthread support
2905 # do this before the optional library checks as some of them require pthreads
2906 if ! disabled pthreads && ! enabled w32threads; then
2907     enable pthreads
2908     if check_func pthread_create; then
2909         :
2910     elif check_func pthread_create -pthread; then
2911         add_cflags -pthread
2912         add_extralibs -pthread
2913     elif check_func pthread_create -pthreads; then
2914         add_cflags -pthreads
2915         add_extralibs -pthreads
2916     elif check_func pthread_create -lpthreadGC2; then
2917         add_extralibs -lpthreadGC2
2918     elif ! check_lib pthread.h pthread_create -lpthread; then
2919         disable pthreads
2920     fi
2921 fi
2922
2923 for thread in $THREADS_LIST; do
2924     if enabled $thread; then
2925         test -n "$thread_type" &&
2926             die "ERROR: Only one thread type must be selected." ||
2927             thread_type="$thread"
2928     fi
2929 done
2930
2931 check_lib math.h sin -lm && LIBM="-lm"
2932 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2933
2934 check_mathfunc cbrtf
2935 check_mathfunc exp2
2936 check_mathfunc exp2f
2937 check_mathfunc isinf
2938 check_mathfunc isnan
2939 check_mathfunc llrint
2940 check_mathfunc llrintf
2941 check_mathfunc log2
2942 check_mathfunc log2f
2943 check_mathfunc lrint
2944 check_mathfunc lrintf
2945 check_mathfunc round
2946 check_mathfunc roundf
2947 check_mathfunc trunc
2948 check_mathfunc truncf
2949
2950 # these are off by default, so fail if requested and not available
2951 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2952 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2953 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2954 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2955 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2956 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2957 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
2958 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2959 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2960 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2961 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2962 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2963 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2964 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2965 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2966 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2967 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2968 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2969 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2970 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2971 enabled libvpx     && {
2972     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2973                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2974     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2975                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2976 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2977                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2978                         die "ERROR: libx264 version must be >= 0.118."; }
2979 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2980 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2981 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2982                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2983                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2984                         die "ERROR: openssl not found"; }
2985
2986 # libdc1394 check
2987 if enabled libdc1394; then
2988     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2989         enable libdc1394_2; } ||
2990     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2991         enable libdc1394_1; } ||
2992     die "ERROR: No version of libdc1394 found "
2993 fi
2994
2995 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
2996     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2997     enable sdl &&
2998     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2999 fi
3000
3001 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3002
3003 check_header linux/fb.h
3004 check_header linux/videodev2.h
3005 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3006
3007 check_header sys/videoio.h
3008
3009 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3010 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3011 # w32api 3.12 had it defined wrong
3012 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3013
3014 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3015 { check_header dev/bktr/ioctl_meteor.h &&
3016   check_header dev/bktr/ioctl_bt848.h; } ||
3017 { check_header machine/ioctl_meteor.h &&
3018   check_header machine/ioctl_bt848.h; } ||
3019 { check_header dev/video/meteor/ioctl_meteor.h &&
3020   check_header dev/video/bktr/ioctl_bt848.h; } ||
3021 check_header dev/ic/bt8xx.h
3022
3023 check_header sndio.h
3024 check_header sys/soundcard.h
3025 check_header soundcard.h
3026
3027 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3028
3029 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3030     check_func jack_port_get_latency_range -ljack
3031
3032 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3033
3034 enabled libcdio &&
3035     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3036
3037 enabled x11grab                                           &&
3038 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3039 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3040 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3041
3042 # check for VDA header
3043 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3044     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3045 fi
3046
3047 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3048 check_cpp_condition \
3049     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3050     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3051       disable vdpau; }
3052 fi
3053
3054 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3055
3056 # add some useful compiler flags if supported
3057 check_cflags -Wdeclaration-after-statement
3058 check_cflags -Wall
3059 check_cflags -Wno-parentheses
3060 check_cflags -Wno-switch
3061 check_cflags -Wno-format-zero-length
3062 check_cflags -Wdisabled-optimization
3063 check_cflags -Wpointer-arith
3064 check_cflags -Wredundant-decls
3065 check_cflags -Wno-pointer-sign
3066 check_cflags -Wcast-qual
3067 check_cflags -Wwrite-strings
3068 check_cflags -Wtype-limits
3069 check_cflags -Wundef
3070 check_cflags -Wmissing-prototypes
3071 check_cflags -Wstrict-prototypes
3072 enabled extra_warnings && check_cflags -Winline
3073
3074 # add some linker flags
3075 check_ldflags -Wl,--warn-common
3076 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3077 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3078
3079 enabled xmm_clobber_test &&                             \
3080     check_ldflags -Wl,--wrap,avcodec_open2              \
3081                   -Wl,--wrap,avcodec_decode_audio4      \
3082                   -Wl,--wrap,avcodec_decode_video2      \
3083                   -Wl,--wrap,avcodec_decode_subtitle2   \
3084                   -Wl,--wrap,avcodec_encode_audio2      \
3085                   -Wl,--wrap,avcodec_encode_video       \
3086                   -Wl,--wrap,avcodec_encode_subtitle    \
3087                   -Wl,--wrap,sws_scale ||               \
3088     disable xmm_clobber_test
3089
3090 echo "X{};" > $TMPV
3091 if test_ldflags -Wl,--version-script,$TMPV; then
3092     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3093     check_cc <<EOF && enable symver_asm_label
3094 void ff_foo(void) __asm__ ("av_foo@VERSION");
3095 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3096 EOF
3097     check_cc <<EOF && enable symver_gnu_asm
3098 __asm__(".symver ff_foo,av_foo@VERSION");
3099 void ff_foo(void) {}
3100 EOF
3101 fi
3102
3103 if [ -n "$optflags" ]; then
3104     add_cflags $optflags
3105 elif enabled small; then
3106     add_cflags $size_cflags
3107 elif enabled optimizations; then
3108     add_cflags $speed_cflags
3109 else
3110     add_cflags $noopt_cflags
3111 fi
3112 check_cflags -fno-math-errno
3113 check_cflags -fno-signed-zeros
3114
3115 if enabled icc; then
3116     # Just warnings, no remarks
3117     check_cflags -w1
3118     # -wd: Disable following warnings
3119     # 144, 167, 556: -Wno-pointer-sign
3120     # 1292: attribute "foo" ignored
3121     # 1419: external declaration in primary source file
3122     # 10006: ignoring unknown option -fno-signed-zeros
3123     # 10148: ignoring unknown option -Wno-parentheses
3124     # 10156: ignoring option '-W'; no argument required
3125     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3126     # 11030: Warning unknown option --as-needed
3127     # 10156: ignoring option '-export'; no argument required
3128     check_ldflags -wd10156,11030
3129     # Allow to compile with optimizations
3130     check_ldflags -march=$cpu
3131     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3132     enable ebp_available
3133     if enabled x86_32; then
3134         test ${icc_version%%.*} -ge 11 && \
3135             check_cflags -falign-stack=maintain-16-byte || \
3136             disable aligned_stack
3137     fi
3138 elif enabled ccc; then
3139     # disable some annoying warnings
3140     add_cflags -msg_disable cvtu32to64
3141     add_cflags -msg_disable embedcomment
3142     add_cflags -msg_disable needconstext
3143     add_cflags -msg_disable nomainieee
3144     add_cflags -msg_disable ptrmismatch1
3145     add_cflags -msg_disable unreachcode
3146 elif enabled gcc; then
3147     check_cflags -fno-tree-vectorize
3148     check_cflags -Werror=implicit-function-declaration
3149     check_cflags -Werror=missing-prototypes
3150     check_cflags -Werror=declaration-after-statement
3151 elif enabled llvm_gcc; then
3152     check_cflags -mllvm -stack-alignment=16
3153 elif enabled clang; then
3154     check_cflags -mllvm -stack-alignment=16
3155     check_cflags -Qunused-arguments
3156 elif enabled armcc; then
3157     # 2523: use of inline assembler is deprecated
3158     add_cflags -W${armcc_opt},--diag_suppress=2523
3159     add_cflags -W${armcc_opt},--diag_suppress=1207
3160     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3161     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3162     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3163     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3164 elif enabled tms470; then
3165     add_cflags -pds=824 -pds=837
3166 elif enabled pathscale; then
3167     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3168 fi
3169
3170 enabled_any $THREADS_LIST      && enable threads
3171
3172 check_deps $CONFIG_LIST       \
3173            $CONFIG_EXTRA      \
3174            $HAVE_LIST         \
3175            $ALL_COMPONENTS    \
3176            $ALL_TESTS         \
3177
3178 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3179
3180 ! enabled_any memalign posix_memalign aligned_malloc &&
3181     enabled_any $need_memalign && enable memalign_hack
3182
3183 echo "install prefix            $prefix"
3184 echo "source path               $source_path"
3185 echo "C compiler                $cc"
3186 echo "ARCH                      $arch ($cpu)"
3187 if test "$build_suffix" != ""; then
3188     echo "build suffix              $build_suffix"
3189 fi
3190 if test "$extra_version" != ""; then
3191     echo "version string suffix     $extra_version"
3192 fi
3193 echo "big-endian                ${bigendian-no}"
3194 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3195 if enabled x86; then
3196     echo "${yasmexe}                      ${yasm-no}"
3197     echo "MMX enabled               ${mmx-no}"
3198     echo "MMX2 enabled              ${mmx2-no}"
3199     echo "3DNow! enabled            ${amd3dnow-no}"
3200     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3201     echo "SSE enabled               ${sse-no}"
3202     echo "SSSE3 enabled             ${ssse3-no}"
3203     echo "AVX enabled               ${avx-no}"
3204     echo "CMOV enabled              ${cmov-no}"
3205     echo "CMOV is fast              ${fast_cmov-no}"
3206     echo "EBX available             ${ebx_available-no}"
3207     echo "EBP available             ${ebp_available-no}"
3208 fi
3209 if enabled arm; then
3210     echo "ARMv5TE enabled           ${armv5te-no}"
3211     echo "ARMv6 enabled             ${armv6-no}"
3212     echo "ARMv6T2 enabled           ${armv6t2-no}"
3213     echo "ARM VFP enabled           ${armvfp-no}"
3214     echo "NEON enabled              ${neon-no}"
3215 fi
3216 if enabled mips; then
3217     echo "MMI enabled               ${mmi-no}"
3218 fi
3219 if enabled ppc; then
3220     echo "AltiVec enabled           ${altivec-no}"
3221     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3222     echo "dcbzl available           ${dcbzl-no}"
3223 fi
3224 if enabled sparc; then
3225     echo "VIS enabled               ${vis-no}"
3226 fi
3227 echo "debug symbols             ${debug-no}"
3228 echo "optimize for size         ${small-no}"
3229 echo "optimizations             ${optimizations-no}"
3230 echo "static                    ${static-no}"
3231 echo "shared                    ${shared-no}"
3232 echo "new filter support        ${avfilter-no}"
3233 echo "network support           ${network-no}"
3234 echo "threading support         ${thread_type-no}"
3235 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3236 echo "SDL support               ${sdl-no}"
3237 echo "libdxva2 enabled          ${dxva2-no}"
3238 echo "libva enabled             ${vaapi-no}"
3239 echo "libvdpau enabled          ${vdpau-no}"
3240 echo "AVISynth enabled          ${avisynth-no}"
3241 echo "frei0r enabled            ${frei0r-no}"
3242 echo "gnutls enabled            ${gnutls-no}"
3243 echo "libcdio support           ${libcdio-no}"
3244 echo "libdc1394 support         ${libdc1394-no}"
3245 echo "libfaac enabled           ${libfaac-no}"
3246 echo "libgsm enabled            ${libgsm-no}"
3247 echo "libilbc enabled           ${libilbc-no}"
3248 echo "libmp3lame enabled        ${libmp3lame-no}"
3249 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3250 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3251 echo "libopencv support         ${libopencv-no}"
3252 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3253 echo "libpulse enabled          ${libpulse-no}"
3254 echo "librtmp enabled           ${librtmp-no}"
3255 echo "libschroedinger enabled   ${libschroedinger-no}"
3256 echo "libspeex enabled          ${libspeex-no}"
3257 echo "libtheora enabled         ${libtheora-no}"
3258 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3259 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3260 echo "libvorbis enabled         ${libvorbis-no}"
3261 echo "libvpx enabled            ${libvpx-no}"
3262 echo "libx264 enabled           ${libx264-no}"
3263 echo "libxavs enabled           ${libxavs-no}"
3264 echo "libxvid enabled           ${libxvid-no}"
3265 echo "openssl enabled           ${openssl-no}"
3266 echo "zlib enabled              ${zlib-no}"
3267 echo "bzlib enabled             ${bzlib-no}"
3268 echo
3269
3270 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3271     echo "Enabled ${type}s:"
3272     eval list=\$$(toupper $type)_LIST
3273     print_enabled '_*' $list | sort | pr -r -3 -t
3274     echo
3275 done
3276
3277 license="LGPL version 2.1 or later"
3278 if enabled nonfree; then
3279     license="nonfree and unredistributable"
3280 elif enabled gplv3; then
3281     license="GPL version 3 or later"
3282 elif enabled lgplv3; then
3283     license="LGPL version 3 or later"
3284 elif enabled gpl; then
3285     license="GPL version 2 or later"
3286 fi
3287
3288 echo "License: $license"
3289
3290 echo "Creating config.mak and config.h..."
3291
3292 test -e Makefile || $ln_s "$source_path/Makefile" .
3293
3294 config_files="$TMPH config.mak"
3295
3296 cat > config.mak <<EOF
3297 # Automatically generated by configure - do not modify!
3298 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3299 prefix=$prefix
3300 LIBDIR=\$(DESTDIR)$libdir
3301 SHLIBDIR=\$(DESTDIR)$shlibdir
3302 INCDIR=\$(DESTDIR)$incdir
3303 BINDIR=\$(DESTDIR)$bindir
3304 DATADIR=\$(DESTDIR)$datadir
3305 MANDIR=\$(DESTDIR)$mandir
3306 SRC_PATH=$source_path
3307 CC_IDENT=$cc_ident
3308 ARCH=$arch
3309 CC=$cc
3310 AS=$as
3311 LD=$ld
3312 DEPCC=$dep_cc
3313 YASM=$yasmexe
3314 YASMDEP=$yasmexe
3315 AR=$ar
3316 RANLIB=$ranlib
3317 LN_S=$ln_s
3318 CPPFLAGS=$CPPFLAGS
3319 CFLAGS=$CFLAGS
3320 ASFLAGS=$ASFLAGS
3321 AS_O=$CC_O
3322 CC_O=$CC_O
3323 DLLTOOL=$dlltool
3324 LDFLAGS=$LDFLAGS
3325 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3326 SHFLAGS=$SHFLAGS
3327 YASMFLAGS=$YASMFLAGS
3328 BUILDSUF=$build_suffix
3329 FULLNAME=$FULLNAME
3330 LIBPREF=$LIBPREF
3331 LIBSUF=$LIBSUF
3332 LIBNAME=$LIBNAME
3333 SLIBPREF=$SLIBPREF
3334 SLIBSUF=$SLIBSUF
3335 EXESUF=$EXESUF
3336 EXTRA_VERSION=$extra_version
3337 DEPFLAGS=$DEPFLAGS
3338 CCDEP=$CCDEP
3339 ASDEP=$ASDEP
3340 CC_DEPFLAGS=$CC_DEPFLAGS
3341 AS_DEPFLAGS=$AS_DEPFLAGS
3342 HOSTCC=$host_cc
3343 HOSTCFLAGS=$host_cflags
3344 HOSTEXESUF=$HOSTEXESUF
3345 HOSTLDFLAGS=$host_ldflags
3346 HOSTLIBS=$host_libs
3347 TARGET_EXEC=$target_exec
3348 TARGET_PATH=$target_path
3349 SDL_LIBS=$sdl_libs
3350 SDL_CFLAGS=$sdl_cflags
3351 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3352 EXTRALIBS=$extralibs
3353 INSTALL=install
3354 LIBTARGET=${LIBTARGET}
3355 SLIBNAME=${SLIBNAME}
3356 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3357 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3358 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3359 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3360 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3361 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3362 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3363 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3364 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
3365 EOF
3366
3367 get_version(){
3368     lcname=$1
3369     name=$(toupper $lcname)
3370     file=$source_path/$lcname/version.h
3371     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3372     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3373     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3374     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3375 }
3376
3377 get_version libavcodec
3378 get_version libavdevice
3379 get_version libavfilter
3380 get_version libavformat
3381 get_version libavresample
3382 get_version libavutil
3383 get_version libswscale
3384
3385 cat > $TMPH <<EOF
3386 /* Automatically generated by configure - do not modify! */
3387 #ifndef LIBAV_CONFIG_H
3388 #define LIBAV_CONFIG_H
3389 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3390 #define LIBAV_LICENSE "$(c_escape $license)"
3391 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3392 #define CC_TYPE "$cc_type"
3393 #define CC_VERSION $cc_version
3394 #define restrict $_restrict
3395 #define EXTERN_PREFIX "${extern_prefix}"
3396 #define EXTERN_ASM ${extern_prefix}
3397 #define SLIBSUF "$SLIBSUF"
3398 EOF
3399
3400 test -n "$malloc_prefix" &&
3401     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3402
3403 if enabled yasm; then
3404     append config_files $TMPASM
3405     printf '' >$TMPASM
3406 fi
3407
3408 print_config ARCH_   "$config_files" $ARCH_LIST
3409 print_config HAVE_   "$config_files" $HAVE_LIST
3410 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3411                                      $CONFIG_EXTRA      \
3412                                      $ALL_COMPONENTS    \
3413
3414 cat >>config.mak <<EOF
3415 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3416 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3417 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3418 EOF
3419
3420 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3421
3422 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3423 cp_if_changed $TMPH config.h
3424 touch .config
3425
3426 enabled yasm && cp_if_changed $TMPASM config.asm
3427
3428 cat > $TMPH <<EOF
3429 /* Generated by ffconf */
3430 #ifndef AVUTIL_AVCONFIG_H
3431 #define AVUTIL_AVCONFIG_H
3432 EOF
3433
3434 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3435
3436 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3437
3438 cp_if_changed $TMPH libavutil/avconfig.h
3439
3440 test -n "$WARNINGS" && printf "\n$WARNINGS"
3441
3442 # build pkg-config files
3443
3444 pkgconfig_generate(){
3445 name=$1
3446 shortname=${name#lib}${build_suffix}
3447 comment=$2
3448 version=$3
3449 libs=$4
3450 requires=$5
3451 enabled ${name#lib} || return 0
3452 mkdir -p $name
3453 cat <<EOF > $name/$name.pc
3454 prefix=$prefix
3455 exec_prefix=\${prefix}
3456 libdir=$libdir
3457 includedir=$incdir
3458
3459 Name: $name
3460 Description: $comment
3461 Version: $version
3462 Requires: $(enabled shared || echo $requires)
3463 Requires.private: $(enabled shared && echo $requires)
3464 Conflicts:
3465 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3466 Libs.private: $(enabled shared && echo $libs)
3467 Cflags: -I\${includedir}
3468 EOF
3469 cat <<EOF > $name/$name-uninstalled.pc
3470 prefix=
3471 exec_prefix=
3472 libdir=\${pcfiledir}
3473 includedir=${source_path}
3474
3475 Name: $name
3476 Description: $comment
3477 Version: $version
3478 Requires: $requires
3479 Conflicts:
3480 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3481 Cflags: -I\${includedir}
3482 EOF
3483 }
3484
3485 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3486 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3487 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3488 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3489 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3490 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3491 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"