git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # Libav configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-frei0r          enable frei0r video filtering
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libopencv       enable video filtering via libopencv [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libfreetype     enable libfreetype [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240   --optflags               override optimization-related compiler flags
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 879     mkdir -p "$(dirname $2)"
 880     cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvo_aacenc
 944     libvo_amrwbenc
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudiodsp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     thumb
 971     vaapi
 972     vdpau
 973     version3
 974     x11grab
 975     zlib
 976 "
 977
 978 THREADS_LIST='
 979     pthreads
 980     w32threads
 981 '
 982
 983 ARCH_LIST='
 984     alpha
 985     arm
 986     avr32
 987     avr32_ap
 988     avr32_uc
 989     bfin
 990     ia64
 991     m68k
 992     mips
 993     mips64
 994     parisc
 995     ppc
 996     ppc64
 997     s390
 998     sh4
 999     sparc
1000     sparc64
1001     tomi
1002     x86
1003     x86_32
1004     x86_64
1005 '
1006
1007 ARCH_EXT_LIST='
1008     altivec
1009     amd3dnow
1010     amd3dnowext
1011     armv5te
1012     armv6
1013     armv6t2
1014     armvfp
1015     avx
1016     iwmmxt
1017     mmi
1018     mmx
1019     mmx2
1020     neon
1021     ppc4xx
1022     sse
1023     ssse3
1024     vfpv3
1025     vis
1026 '
1027
1028 HAVE_LIST_PUB='
1029     bigendian
1030     fast_unaligned
1031 '
1032
1033 HAVE_LIST="
1034     $ARCH_EXT_LIST
1035     $HAVE_LIST_PUB
1036     $THREADS_LIST
1037     aligned_stack
1038     alsa_asoundlib_h
1039     altivec_h
1040     arpa_inet_h
1041     attribute_may_alias
1042     attribute_packed
1043     bswap
1044     closesocket
1045     cmov
1046     dcbzl
1047     dev_bktr_ioctl_bt848_h
1048     dev_bktr_ioctl_meteor_h
1049     dev_ic_bt8xx_h
1050     dev_video_meteor_ioctl_meteor_h
1051     dev_video_bktr_ioctl_bt848_h
1052     dlfcn_h
1053     dlopen
1054     dos_paths
1055     ebp_available
1056     ebx_available
1057     exp2
1058     exp2f
1059     fast_64bit
1060     fast_clz
1061     fast_cmov
1062     fcntl
1063     fork
1064     getaddrinfo
1065     gethrtime
1066     GetProcessMemoryInfo
1067     GetProcessTimes
1068     getrusage
1069     gnu_as
1070     struct_rusage_ru_maxrss
1071     ibm_asm
1072     inet_aton
1073     inline_asm
1074     isatty
1075     ldbrx
1076     libdc1394_1
1077     libdc1394_2
1078     llrint
1079     llrintf
1080     local_aligned_16
1081     local_aligned_8
1082     localtime_r
1083     log2
1084     log2f
1085     loongson
1086     lrint
1087     lrintf
1088     lzo1x_999_compress
1089     machine_ioctl_bt848_h
1090     machine_ioctl_meteor_h
1091     malloc_h
1092     MapViewOfFile
1093     memalign
1094     mkstemp
1095     mmap
1096     posix_memalign
1097     round
1098     roundf
1099     sdl
1100     sdl_video_size
1101     setmode
1102     sndio_h
1103     socklen_t
1104     soundcard_h
1105     poll_h
1106     setrlimit
1107     strerror_r
1108     strtok_r
1109     struct_addrinfo
1110     struct_ipv6_mreq
1111     struct_sockaddr_in6
1112     struct_sockaddr_sa_len
1113     struct_sockaddr_storage
1114     symver
1115     symver_gnu_asm
1116     symver_asm_label
1117     sys_mman_h
1118     sys_resource_h
1119     sys_select_h
1120     sys_soundcard_h
1121     sys_videoio_h
1122     threads
1123     trunc
1124     truncf
1125     vfp_args
1126     VirtualAlloc
1127     winsock2_h
1128     xform_asm
1129     xmm_clobbers
1130     yasm
1131 "
1132
1133 # options emitted with CONFIG_ prefix but not available on command line
1134 CONFIG_EXTRA="
1135     avutil
1136     gplv3
1137     lgplv3
1138 "
1139
1140 CMDLINE_SELECT="
1141     $ARCH_EXT_LIST
1142     $CONFIG_LIST
1143     $THREADS_LIST
1144     asm
1145     cross_compile
1146     debug
1147     extra_warnings
1148     logging
1149     optimizations
1150     symver
1151     yasm
1152 "
1153
1154 PATHS_LIST='
1155     bindir
1156     datadir
1157     incdir
1158     libdir
1159     mandir
1160     prefix
1161     shlibdir
1162 '
1163
1164 CMDLINE_SET="
1165     $PATHS_LIST
1166     ar
1167     arch
1168     as
1169     build_suffix
1170     cc
1171     cpu
1172     cross_prefix
1173     dep_cc
1174     extra_version
1175     host_cc
1176     host_cflags
1177     host_ldflags
1178     host_libs
1179     host_os
1180     ld
1181     logfile
1182     malloc_prefix
1183     nm
1184     optflags
1185     pkg_config
1186     samples
1187     sysinclude
1188     sysroot
1189     target_exec
1190     target_os
1191     target_path
1192 "
1193
1194 CMDLINE_APPEND="
1195     extra_cflags
1196 "
1197
1198 # code dependency declarations
1199
1200 # architecture extensions
1201
1202 armv5te_deps="arm"
1203 armv6_deps="arm"
1204 armv6t2_deps="arm"
1205 armvfp_deps="arm"
1206 iwmmxt_deps="arm"
1207 neon_deps="arm"
1208 vfpv3_deps="armvfp"
1209
1210 mmi_deps="mips"
1211
1212 altivec_deps="ppc"
1213 ppc4xx_deps="ppc"
1214
1215 vis_deps="sparc"
1216
1217 x86_64_suggest="cmov fast_cmov"
1218 amd3dnow_deps="mmx"
1219 amd3dnowext_deps="amd3dnow"
1220 mmx_deps="x86"
1221 mmx2_deps="mmx"
1222 sse_deps="mmx"
1223 ssse3_deps="sse"
1224 avx_deps="ssse3"
1225
1226 aligned_stack_if_any="ppc x86"
1227 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1228 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1229 fast_unaligned_if_any="armv6 ppc x86"
1230
1231 need_memalign="altivec neon sse"
1232 inline_asm_deps="!tms470"
1233
1234 symver_if_any="symver_asm_label symver_gnu_asm"
1235
1236 # subsystems
1237 dct_select="rdft"
1238 mdct_select="fft"
1239 rdft_select="fft"
1240 mpegaudiodsp_select="dct"
1241
1242 # decoders / encoders / hardware accelerators
1243 aac_decoder_select="mdct sinewin"
1244 aac_encoder_select="mdct sinewin"
1245 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1246 ac3_decoder_select="mdct ac3dsp ac3_parser"
1247 ac3_encoder_select="mdct ac3dsp"
1248 ac3_fixed_encoder_select="mdct ac3dsp"
1249 alac_encoder_select="lpc"
1250 amrnb_decoder_select="lsp"
1251 amrwb_decoder_select="lsp"
1252 atrac1_decoder_select="mdct sinewin"
1253 atrac3_decoder_select="mdct"
1254 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1255 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1256 cavs_decoder_select="golomb"
1257 cook_decoder_select="mdct sinewin"
1258 cscd_decoder_suggest="zlib"
1259 dca_decoder_select="mdct"
1260 dnxhd_encoder_select="aandct"
1261 dxa_decoder_select="zlib"
1262 eac3_decoder_select="ac3_decoder"
1263 eac3_encoder_select="mdct ac3dsp"
1264 eamad_decoder_select="aandct"
1265 eatgq_decoder_select="aandct"
1266 eatqi_decoder_select="aandct"
1267 ffv1_decoder_select="golomb"
1268 flac_decoder_select="golomb"
1269 flac_encoder_select="golomb lpc"
1270 flashsv_decoder_select="zlib"
1271 flashsv_encoder_select="zlib"
1272 flv_decoder_select="h263_decoder"
1273 flv_encoder_select="h263_encoder"
1274 fraps_decoder_select="huffman"
1275 h261_encoder_select="aandct"
1276 h263_decoder_select="h263_parser"
1277 h263_encoder_select="aandct"
1278 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1279 h263i_decoder_select="h263_decoder"
1280 h263p_encoder_select="h263_encoder"
1281 h264_decoder_select="golomb h264dsp h264pred"
1282 h264_dxva2_hwaccel_deps="dxva2api_h"
1283 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1284 h264_vaapi_hwaccel_select="vaapi"
1285 h264_vdpau_decoder_select="vdpau h264_decoder"
1286 imc_decoder_select="fft mdct sinewin"
1287 jpegls_decoder_select="golomb"
1288 jpegls_encoder_select="golomb"
1289 ljpeg_encoder_select="aandct"
1290 loco_decoder_select="golomb"
1291 mjpeg_encoder_select="aandct"
1292 mlp_decoder_select="mlp_parser"
1293 mp1_decoder_select="mpegaudiodsp"
1294 mp2_decoder_select="mpegaudiodsp"
1295 mp3adu_decoder_select="mpegaudiodsp"
1296 mp3_decoder_select="mpegaudiodsp"
1297 mp3on4_decoder_select="mpegaudiodsp"
1298 mp1float_decoder_select="mpegaudiodsp"
1299 mp2float_decoder_select="mpegaudiodsp"
1300 mp3adufloat_decoder_select="mpegaudiodsp"
1301 mp3float_decoder_select="mpegaudiodsp"
1302 mp3on4float_decoder_select="mpegaudiodsp"
1303 mpeg1video_encoder_select="aandct"
1304 mpeg2video_encoder_select="aandct"
1305 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1306 mpeg4_encoder_select="h263_encoder"
1307 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1308 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1309 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1310 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1311 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1312 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1313 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1314 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1315 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1316 msmpeg4v1_decoder_select="h263_decoder"
1317 msmpeg4v1_encoder_select="h263_encoder"
1318 msmpeg4v2_decoder_select="h263_decoder"
1319 msmpeg4v2_encoder_select="h263_encoder"
1320 msmpeg4v3_decoder_select="h263_decoder"
1321 msmpeg4v3_encoder_select="h263_encoder"
1322 nellymoser_decoder_select="mdct sinewin"
1323 nellymoser_encoder_select="mdct sinewin"
1324 png_decoder_select="zlib"
1325 png_encoder_select="zlib"
1326 qcelp_decoder_select="lsp"
1327 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1328 ra_144_encoder_select="lpc"
1329 rv10_decoder_select="h263_decoder"
1330 rv10_encoder_select="h263_encoder"
1331 rv20_decoder_select="h263_decoder"
1332 rv20_encoder_select="h263_encoder"
1333 rv30_decoder_select="golomb h264pred"
1334 rv40_decoder_select="golomb h264pred"
1335 shorten_decoder_select="golomb"
1336 sipr_decoder_select="lsp"
1337 snow_decoder_select="dwt"
1338 snow_encoder_select="aandct dwt"
1339 svq1_encoder_select="aandct"
1340 svq3_decoder_select="golomb h264dsp h264pred"
1341 svq3_decoder_suggest="zlib"
1342 theora_decoder_select="vp3_decoder"
1343 tiff_decoder_suggest="zlib"
1344 tiff_encoder_suggest="zlib"
1345 truehd_decoder_select="mlp_decoder"
1346 tscc_decoder_select="zlib"
1347 twinvq_decoder_select="mdct lsp sinewin"
1348 vc1_decoder_select="h263_decoder"
1349 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1350 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1351 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1352 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1353 vorbis_decoder_select="mdct"
1354 vorbis_encoder_select="mdct"
1355 vp6_decoder_select="huffman"
1356 vp6a_decoder_select="vp6_decoder"
1357 vp6f_decoder_select="vp6_decoder"
1358 vp8_decoder_select="h264pred"
1359 wmapro_decoder_select="mdct sinewin"
1360 wmav1_decoder_select="mdct sinewin"
1361 wmav1_encoder_select="mdct sinewin"
1362 wmav2_decoder_select="mdct sinewin"
1363 wmav2_encoder_select="mdct sinewin"
1364 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1365 wmv1_decoder_select="h263_decoder"
1366 wmv1_encoder_select="h263_encoder"
1367 wmv2_decoder_select="h263_decoder"
1368 wmv2_encoder_select="h263_encoder"
1369 wmv3_decoder_select="vc1_decoder"
1370 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1371 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1372 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1373 zlib_decoder_select="zlib"
1374 zlib_encoder_select="zlib"
1375 zmbv_decoder_select="zlib"
1376 zmbv_encoder_select="zlib"
1377
1378 vaapi_deps="va_va_h"
1379 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1380
1381 # parsers
1382 h264_parser_select="golomb h264dsp h264pred"
1383
1384 # external libraries
1385 libdirac_decoder_deps="libdirac !libschroedinger"
1386 libdirac_encoder_deps="libdirac"
1387 libfaac_encoder_deps="libfaac"
1388 libgsm_decoder_deps="libgsm"
1389 libgsm_encoder_deps="libgsm"
1390 libgsm_ms_decoder_deps="libgsm"
1391 libgsm_ms_encoder_deps="libgsm"
1392 libmp3lame_encoder_deps="libmp3lame"
1393 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1394 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1395 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1396 libopenjpeg_decoder_deps="libopenjpeg"
1397 libschroedinger_decoder_deps="libschroedinger"
1398 libschroedinger_encoder_deps="libschroedinger"
1399 libspeex_decoder_deps="libspeex"
1400 libtheora_encoder_deps="libtheora"
1401 libvo_aacenc_encoder_deps="libvo_aacenc"
1402 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1403 libvorbis_encoder_deps="libvorbis"
1404 libvpx_decoder_deps="libvpx"
1405 libvpx_encoder_deps="libvpx"
1406 libx264_encoder_deps="libx264"
1407 libxavs_encoder_deps="libxavs"
1408 libxvid_encoder_deps="libxvid"
1409
1410 # demuxers / muxers
1411 ac3_demuxer_select="ac3_parser"
1412 asf_stream_muxer_select="asf_muxer"
1413 avisynth_demuxer_deps="avisynth"
1414 dirac_demuxer_select="dirac_parser"
1415 eac3_demuxer_select="ac3_parser"
1416 flac_demuxer_select="flac_parser"
1417 ipod_muxer_select="mov_muxer"
1418 libnut_demuxer_deps="libnut"
1419 libnut_muxer_deps="libnut"
1420 matroska_audio_muxer_select="matroska_muxer"
1421 matroska_demuxer_suggest="zlib bzlib"
1422 mov_demuxer_suggest="zlib"
1423 mp3_demuxer_select="mpegaudio_parser"
1424 mp4_muxer_select="mov_muxer"
1425 mpegtsraw_demuxer_select="mpegts_demuxer"
1426 mxf_d10_muxer_select="mxf_muxer"
1427 ogg_demuxer_select="golomb"
1428 psp_muxer_select="mov_muxer"
1429 rtp_demuxer_select="sdp_demuxer"
1430 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1431 rtsp_demuxer_select="http_protocol rtpdec"
1432 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1433 sap_demuxer_select="sdp_demuxer"
1434 sap_muxer_select="rtp_muxer rtp_protocol"
1435 sdp_demuxer_select="rtpdec"
1436 spdif_muxer_select="aac_parser"
1437 tg2_muxer_select="mov_muxer"
1438 tgp_muxer_select="mov_muxer"
1439 w64_demuxer_deps="wav_demuxer"
1440
1441 # indevs / outdevs
1442 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1443 alsa_outdev_deps="alsa_asoundlib_h"
1444 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1445 dv1394_indev_deps="dv1394 dv_demuxer"
1446 fbdev_indev_deps="linux_fb_h"
1447 jack_indev_deps="jack_jack_h"
1448 libdc1394_indev_deps="libdc1394"
1449 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1450 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1451 sndio_indev_deps="sndio_h"
1452 sndio_outdev_deps="sndio_h"
1453 v4l_indev_deps="linux_videodev_h"
1454 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1455 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1456 vfwcap_indev_extralibs="-lavicap32"
1457 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1458 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1459
1460 # protocols
1461 gopher_protocol_deps="network"
1462 http_protocol_deps="network"
1463 http_protocol_select="tcp_protocol"
1464 mmsh_protocol_select="http_protocol"
1465 mmst_protocol_deps="network"
1466 rtmp_protocol_select="tcp_protocol"
1467 rtp_protocol_select="udp_protocol"
1468 tcp_protocol_deps="network"
1469 udp_protocol_deps="network"
1470
1471 # filters
1472 blackframe_filter_deps="gpl"
1473 cropdetect_filter_deps="gpl"
1474 drawtext_filter_deps="libfreetype"
1475 frei0r_filter_deps="frei0r dlopen strtok_r"
1476 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1477 hqdn3d_filter_deps="gpl"
1478 ocv_filter_deps="libopencv"
1479 scale_filter_deps="swscale"
1480 yadif_filter_deps="gpl"
1481
1482 # libraries
1483 avdevice_deps="avcodec avformat"
1484 avformat_deps="avcodec"
1485 postproc_deps="gpl"
1486
1487 # programs
1488 ffmpeg_deps="avcodec avformat swscale"
1489 ffmpeg_select="buffer_filter"
1490 ffplay_deps="avcodec avformat swscale sdl"
1491 ffplay_select="rdft"
1492 ffprobe_deps="avcodec avformat"
1493 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1494 ffserver_extralibs='$ldl'
1495
1496 doc_deps="texi2html"
1497
1498 # tests
1499
1500 test_deps(){
1501     suf1=$1
1502     suf2=$2
1503     shift 2
1504     for v; do
1505         dep=${v%=*}
1506         tests=${v#*=}
1507         for name in ${tests}; do
1508             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1509         done
1510     done
1511 }
1512
1513 test_deps _encoder _decoder                                             \
1514     adpcm_g726=g726                                                     \
1515     adpcm_ima_qt                                                        \
1516     adpcm_ima_wav                                                       \
1517     adpcm_ms                                                            \
1518     adpcm_swf                                                           \
1519     adpcm_yamaha=adpcm_yam                                              \
1520     alac                                                                \
1521     asv1                                                                \
1522     asv2                                                                \
1523     bmp                                                                 \
1524     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1525     dvvideo="dv dv50"                                                   \
1526     ffv1                                                                \
1527     flac                                                                \
1528     flashsv                                                             \
1529     flv                                                                 \
1530     gif                                                                 \
1531     h261                                                                \
1532     h263="h263 h263p"                                                   \
1533     huffyuv                                                             \
1534     jpegls                                                              \
1535     mjpeg="jpg mjpeg ljpeg"                                             \
1536     mp2                                                                 \
1537     mpeg1video="mpeg mpeg1b"                                            \
1538     mpeg2video="mpeg2 mpeg2thread"                                      \
1539     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1540     msmpeg4v3=msmpeg4                                                   \
1541     msmpeg4v2                                                           \
1542     pbm=pbmpipe                                                         \
1543     pcx                                                                 \
1544     pgm="pgm pgmpipe"                                                   \
1545     png                                                                 \
1546     ppm="ppm ppmpipe"                                                   \
1547     rawvideo="rgb yuv"                                                  \
1548     roq                                                                 \
1549     rv10                                                                \
1550     rv20                                                                \
1551     sgi                                                                 \
1552     snow="snow snowll"                                                  \
1553     svq1                                                                \
1554     targa=tga                                                           \
1555     tiff                                                                \
1556     wmav1                                                               \
1557     wmav2                                                               \
1558     wmv1                                                                \
1559     wmv2                                                                \
1560
1561 test_deps _muxer _demuxer                                               \
1562     aiff                                                                \
1563     pcm_alaw=alaw                                                       \
1564     asf                                                                 \
1565     au                                                                  \
1566     avi                                                                 \
1567     dv=dv_fmt                                                           \
1568     ffm                                                                 \
1569     flv=flv_fmt                                                         \
1570     gxf                                                                 \
1571     matroska=mkv                                                        \
1572     mmf                                                                 \
1573     mov                                                                 \
1574     pcm_mulaw=mulaw                                                     \
1575     mxf                                                                 \
1576     nut                                                                 \
1577     ogg                                                                 \
1578     rawvideo=pixfmt                                                     \
1579     rm                                                                  \
1580     swf                                                                 \
1581     mpegts=ts                                                           \
1582     voc                                                                 \
1583     wav                                                                 \
1584     yuv4mpegpipe=yuv4mpeg                                               \
1585
1586 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1587 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1588
1589 # default parameters
1590
1591 logfile="config.log"
1592
1593 # installation paths
1594 prefix_default="/usr/local"
1595 bindir_default='${prefix}/bin'
1596 datadir_default='${prefix}/share/ffmpeg'
1597 incdir_default='${prefix}/include'
1598 libdir_default='${prefix}/lib'
1599 mandir_default='${prefix}/share/man'
1600 shlibdir_default="$libdir_default"
1601
1602 # toolchain
1603 ar_default="ar"
1604 cc_default="gcc"
1605 cc_version=\"unknown\"
1606 host_cc_default="gcc"
1607 ln_s="ln -sf"
1608 nm_default="nm"
1609 objformat="elf"
1610 pkg_config_default=pkg-config
1611 ranlib="ranlib"
1612 yasmexe="yasm"
1613 nogas=":"
1614
1615 nm_opts='-g'
1616
1617 # machine
1618 arch_default=$(uname -m)
1619 cpu="generic"
1620
1621 # OS
1622 target_os_default=$(tolower $(uname -s))
1623 host_os=$target_os_default
1624
1625 # configurable options
1626 enable avcodec
1627 enable avdevice
1628 enable avfilter
1629 enable avformat
1630 enable avutil
1631 enable asm
1632 enable debug
1633 enable doc
1634 enable fastdiv
1635 enable ffmpeg
1636 enable ffplay
1637 enable ffprobe
1638 enable ffserver
1639 enable network
1640 enable optimizations
1641 enable postproc
1642 enable protocols
1643 enable static
1644 enable swscale
1645 enable swscale_alpha
1646
1647 # build settings
1648 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1649 FFSERVERLDFLAGS=-Wl,-E
1650 LIBPREF="lib"
1651 LIBSUF=".a"
1652 FULLNAME='$(NAME)$(BUILDSUF)'
1653 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1654 SLIBPREF="lib"
1655 SLIBSUF=".so"
1656 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1657 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1658 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1659 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1660
1661 AS_O='-o $@'
1662 CC_O='-o $@'
1663
1664 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1665 host_libs='-lm'
1666
1667 target_path='$(CURDIR)'
1668
1669 # since the object filename is not given with the -MM flag, the compiler
1670 # is only able to print the basename, and we must add the path ourselves
1671 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1672 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1673
1674 # find source path
1675 if test -f configure; then
1676     source_path=.
1677 else
1678     source_path=$(cd $(dirname "$0"); pwd)
1679     echo "$source_path" | grep -q '[[:blank:]]' &&
1680         die "Out of tree builds are impossible with whitespace in source path."
1681     test -e "$source_path/config.h" &&
1682         die "Out of tree builds are impossible with config.h in source dir."
1683 fi
1684
1685 for v in "$@"; do
1686     r=${v#*=}
1687     l=${v%"$r"}
1688     r=$(sh_quote "$r")
1689     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1690 done
1691
1692 find_things(){
1693     thing=$1
1694     pattern=$2
1695     file=$source_path/$3
1696     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1697 }
1698
1699 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1700 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1701 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1702 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1703 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1704 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1705 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1706 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1707 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1708 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1709 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1710
1711 find_tests(){
1712     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1713 }
1714
1715 ACODEC_TESTS=$(find_tests acodec)
1716 VCODEC_TESTS=$(find_tests vsynth1)
1717 LAVF_TESTS=$(find_tests lavf)
1718 LAVFI_TESTS=$(find_tests lavfi)
1719 SEEK_TESTS=$(find_tests seek seek_)
1720
1721 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1722
1723 for n in $COMPONENT_LIST; do
1724     v=$(toupper ${n%s})_LIST
1725     eval enable \$$v
1726     eval ${n}_if_any="\$$v"
1727 done
1728
1729 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1730
1731 die_unknown(){
1732     echo "Unknown option \"$1\"."
1733     echo "See $0 --help for available options."
1734     exit 1
1735 }
1736
1737 show_list() {
1738     suffix=_$1
1739     shift
1740     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1741     exit 0
1742 }
1743
1744 for opt do
1745     optval="${opt#*=}"
1746     case "$opt" in
1747     --extra-ldflags=*) add_ldflags $optval
1748     ;;
1749     --extra-libs=*) add_extralibs $optval
1750     ;;
1751     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1752     ;;
1753     --enable-debug=*) debuglevel="$optval"
1754     ;;
1755     --disable-everything)
1756     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1757     ;;
1758     --enable-*=*|--disable-*=*)
1759     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1760     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1761     eval list=\$$(toupper $thing)_LIST
1762     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1763     $action $(filter "$name" $list)
1764     ;;
1765     --enable-?*|--disable-?*)
1766     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1767     if is_in $option $COMPONENT_LIST; then
1768         test $action = disable && action=unset
1769         eval $action \$$(toupper ${option%s})_LIST
1770     elif is_in $option $CMDLINE_SELECT; then
1771         $action $option
1772     else
1773         die_unknown $opt
1774     fi
1775     ;;
1776     --list-*)
1777         NAME="${opt#--list-}"
1778         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1779         NAME=${NAME%s}
1780         eval show_list $NAME \$$(toupper $NAME)_LIST
1781     ;;
1782     --help|-h) show_help
1783     ;;
1784     *)
1785     optname="${opt%%=*}"
1786     optname="${optname#--}"
1787     optname=$(echo "$optname" | sed 's/-/_/g')
1788     if is_in $optname $CMDLINE_SET; then
1789         eval $optname='$optval'
1790     elif is_in $optname $CMDLINE_APPEND; then
1791         append $optname "$optval"
1792     else
1793          die_unknown $opt
1794     fi
1795     ;;
1796     esac
1797 done
1798
1799 disabled logging && logfile=/dev/null
1800
1801 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1802 set >> $logfile
1803
1804 test -n "$cross_prefix" && enable cross_compile
1805
1806 if enabled cross_compile; then
1807     test -n "$arch" && test -n "$target_os" ||
1808         die "Must specify target arch and OS when cross-compiling"
1809 fi
1810
1811 set_default arch target_os
1812
1813 ar_default="${cross_prefix}${ar_default}"
1814 cc_default="${cross_prefix}${cc_default}"
1815 nm_default="${cross_prefix}${nm_default}"
1816 pkg_config_default="${cross_prefix}${pkg_config_default}"
1817 ranlib="${cross_prefix}${ranlib}"
1818
1819 sysinclude_default="${sysroot}/usr/include"
1820
1821 set_default cc nm pkg_config sysinclude
1822 enabled cross_compile || host_cc_default=$cc
1823 set_default host_cc
1824
1825 if ! $pkg_config --version >/dev/null 2>&1; then
1826     warn "$pkg_config not found, library detection may fail."
1827     pkg_config=false
1828 fi
1829
1830 exesuf() {
1831     case $1 in
1832         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1833     esac
1834 }
1835
1836 EXESUF=$(exesuf $target_os)
1837 HOSTEXESUF=$(exesuf $host_os)
1838
1839 # set temporary file name
1840 : ${TMPDIR:=$TEMPDIR}
1841 : ${TMPDIR:=$TMP}
1842 : ${TMPDIR:=/tmp}
1843
1844 if ! check_cmd mktemp -u XXXXXX; then
1845     # simple replacement for missing mktemp
1846     # NOT SAFE FOR GENERAL USE
1847     mktemp(){
1848         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1849     }
1850 fi
1851
1852 tmpfile(){
1853     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1854         (set -C; exec > $tmp) 2>/dev/null ||
1855         die "Unable to create temporary file in $TMPDIR."
1856     append TMPFILES $tmp
1857     eval $1=$tmp
1858 }
1859
1860 trap 'rm -f -- $TMPFILES' EXIT
1861
1862 tmpfile TMPC  .c
1863 tmpfile TMPE  $EXESUF
1864 tmpfile TMPH  .h
1865 tmpfile TMPO  .o
1866 tmpfile TMPS  .S
1867 tmpfile TMPV  .ver
1868 tmpfile TMPSH .sh
1869 tmpfile TMPASM .asm
1870
1871 unset -f mktemp
1872
1873 chmod +x $TMPE
1874
1875 # make sure we can execute files in $TMPDIR
1876 cat > $TMPSH 2>> $logfile <<EOF
1877 #! /bin/sh
1878 EOF
1879 chmod +x $TMPSH >> $logfile 2>&1
1880 if ! $TMPSH >> $logfile 2>&1; then
1881     cat <<EOF
1882 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1883 variable to another directory and make sure that it is not mounted noexec.
1884 EOF
1885     die "Sanity test failed."
1886 fi
1887
1888 filter_cflags=echo
1889 filter_cppflags=echo
1890 filter_asflags=echo
1891
1892 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1893     cc_type=llvm_gcc
1894     cc_version=__VERSION__
1895     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1896     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1897     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1898     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1899     speed_cflags='-O3'
1900     size_cflags='-Os'
1901 elif $cc -v 2>&1 | grep -qi ^gcc; then
1902     cc_type=gcc
1903     cc_version=__VERSION__
1904     gcc_version=$($cc --version | head -n1)
1905     gcc_basever=$($cc -dumpversion)
1906     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1907     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1908     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1909     if ! $cc -dumpversion | grep -q '^2\.'; then
1910         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1911         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1912     fi
1913     speed_cflags='-O3'
1914     size_cflags='-Os'
1915 elif $cc --version 2>/dev/null | grep -q Intel; then
1916     cc_type=icc
1917     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1918     cc_ident=$($cc --version | head -n1)
1919     icc_version=$($cc -dumpversion)
1920     CC_DEPFLAGS='-MMD'
1921     AS_DEPFLAGS='-MMD'
1922     speed_cflags='-O3'
1923     size_cflags='-Os'
1924     noopt_cflags='-O1'
1925 elif $cc -v 2>&1 | grep -q xlc; then
1926     cc_type=xlc
1927     cc_version="AV_STRINGIFY(__IBMC__)"
1928     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1929     speed_cflags='-O5'
1930     size_cflags='-O5 -qcompact'
1931 elif $cc -V 2>/dev/null | grep -q Compaq; then
1932     cc_type=ccc
1933     cc_version="AV_STRINGIFY(__DECC_VER)"
1934     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1935     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1936     debuglevel=3
1937     add_ldflags -Wl,-z,now # calls to libots crash without this
1938     speed_cflags='-fast'
1939     size_cflags='-O1'
1940 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1941     test -d "$sysroot" || die "No valid sysroot specified."
1942     cc_type=armcc
1943     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1944     cc_ident=$($cc --vsn | head -n1)
1945     armcc_conf="$PWD/armcc.conf"
1946     $cc --arm_linux_configure                 \
1947         --arm_linux_config_file="$armcc_conf" \
1948         --configure_sysroot="$sysroot"        \
1949         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1950         die "Error creating armcc configuration file."
1951     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1952     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1953     as_default="${cross_prefix}gcc"
1954     CC_DEPFLAGS='-MMD'
1955     AS_DEPFLAGS='-MMD'
1956     speed_cflags='-O3'
1957     size_cflags='-Os'
1958     filter_asflags="filter_out -W${armcc_opt}*"
1959 elif $cc -version 2>/dev/null | grep -q TMS470; then
1960     cc_type=tms470
1961     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1962     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1963     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1964     CC_O='-fr=$(@D)'
1965     as_default="${cross_prefix}gcc"
1966     ld_default="${cross_prefix}gcc"
1967     TMPO=$(basename $TMPC .c).o
1968     append TMPFILES $TMPO
1969     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1970     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1971     AS_DEPFLAGS='-MMD'
1972     speed_cflags='-O3 -mf=5'
1973     size_cflags='-O3 -mf=2'
1974     filter_cflags=tms470_flags
1975     tms470_flags(){
1976         for flag; do
1977             case $flag in
1978                 -march=*|-mcpu=*)
1979                     case "${flag#*=}" in
1980                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1981                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1982                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1983                         armv6*|arm11*)          echo -mv=6   ;;
1984                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1985                                                 echo -mv=5e  ;;
1986                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1987                     esac
1988                     ;;
1989                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1990                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1991                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1992                 -msoft-float)   echo --float_support=vfplib       ;;
1993                 -O[0-3]|-mf=*)  echo $flag                        ;;
1994                 -g)             echo -g -mn                       ;;
1995                 -pds=*)         echo $flag                        ;;
1996             esac
1997         done
1998     }
1999 elif $cc -v 2>&1 | grep -q clang; then
2000     cc_type=clang
2001     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2002         cc_version=__clang_version__ || cc_version=__VERSION__
2003     cc_ident=$($cc --version | head -n1)
2004     CC_DEPFLAGS='-MMD'
2005     AS_DEPFLAGS='-MMD'
2006     speed_cflags='-O3'
2007     size_cflags='-Os'
2008 elif $cc -V 2>&1 | grep -q Sun; then
2009     cc_type=suncc
2010     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2011     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2012     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2013     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2014     speed_cflags='-O5'
2015     size_cflags='-O5 -xspace'
2016     filter_cflags=suncc_flags
2017     suncc_flags(){
2018         for flag; do
2019             case $flag in
2020                 -march=*|-mcpu=*)
2021                     case "${flag#*=}" in
2022                         native)                   echo -xtarget=native       ;;
2023                         v9|niagara)               echo -xarch=sparc          ;;
2024                         ultrasparc)               echo -xarch=sparcvis       ;;
2025                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2026                         i586|pentium)             echo -xchip=pentium        ;;
2027                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2028                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2029                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2030                         pentium4*)          echo -xtarget=pentium4           ;;
2031                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2032                         *-sse3)             echo -xarch=sse3                 ;;
2033                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2034                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2035                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2036                         k8|opteron|athlon64|athlon-fx)
2037                                                   echo -xarch=sse2a          ;;
2038                         athlon*)                  echo -xarch=pentium_proa   ;;
2039                     esac
2040                     ;;
2041                 -std=c99)             echo -xc99              ;;
2042                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2043                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2044                 -W*,*)                echo $flag              ;;
2045                 -f*-*|-W*)                                    ;;
2046                 *)                    echo $flag              ;;
2047             esac
2048         done
2049     }
2050 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2051     cc_type=pathscale
2052     cc_version=__PATHSCALE__
2053     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2054     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2055     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2056     speed_cflags='-O2'
2057     size_cflags='-Os'
2058     filter_cflags='filter_out -Wdisabled-optimization'
2059 elif $cc -v 2>&1 | grep -q Open64; then
2060     cc_type=open64
2061     cc_version=__OPEN64__
2062     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2063     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2064     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2065     speed_cflags='-O2'
2066     size_cflags='-Os'
2067     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2068 fi
2069
2070 test -n "$cc_type" && enable $cc_type ||
2071     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2072
2073 : ${as_default:=$cc}
2074 : ${dep_cc_default:=$cc}
2075 : ${ld_default:=$cc}
2076 set_default ar as dep_cc ld
2077
2078 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2079 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2080
2081 add_cflags $extra_cflags
2082 add_asflags $extra_cflags
2083
2084 if test -n "$sysroot"; then
2085     case "$cc_type" in
2086         gcc|llvm_gcc|clang)
2087             add_cppflags --sysroot="$sysroot"
2088             add_ldflags --sysroot="$sysroot"
2089         ;;
2090         tms470)
2091             add_cppflags -I"$sysinclude"
2092             add_ldflags  --sysroot="$sysroot"
2093         ;;
2094     esac
2095 fi
2096
2097 if test "$cpu" = host; then
2098     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2099
2100     case "$cc_type" in
2101         gcc|llvm_gcc)
2102             check_native(){
2103                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2104                 sed -n "/$1=/{
2105                             s/.*$1=\\([^ ]*\\).*/\\1/
2106                             p
2107                             q
2108                         }" $TMPE
2109             }
2110             cpu=$(check_native -march || check_native -mcpu)
2111         ;;
2112     esac
2113
2114     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2115 fi
2116
2117 # Deal with common $arch aliases
2118 case "$arch" in
2119     arm*)
2120         arch="arm"
2121     ;;
2122     mips|mipsel|IP*)
2123         arch="mips"
2124     ;;
2125     mips64*)
2126         arch="mips"
2127         subarch="mips64"
2128     ;;
2129     parisc|hppa)
2130         arch="parisc"
2131     ;;
2132     parisc64|hppa64)
2133         arch="parisc"
2134         subarch="parisc64"
2135     ;;
2136     "Power Macintosh"|ppc|powerpc)
2137         arch="ppc"
2138     ;;
2139     ppc64|powerpc64)
2140         arch="ppc"
2141         subarch="ppc64"
2142     ;;
2143     s390|s390x)
2144         arch="s390"
2145     ;;
2146     sh4|sh)
2147         arch="sh4"
2148     ;;
2149     sun4u|sparc64)
2150         arch="sparc"
2151         subarch="sparc64"
2152     ;;
2153     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2154         arch="x86"
2155     ;;
2156 esac
2157
2158 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2159 enable $arch
2160
2161 # Add processor-specific flags
2162 if test "$cpu" = generic; then
2163     : do nothing
2164 elif enabled ppc; then
2165
2166     case $(tolower $cpu) in
2167         601|ppc601|powerpc601)
2168             cpuflags="-mcpu=601"
2169             disable altivec
2170         ;;
2171         603*|ppc603*|powerpc603*)
2172             cpuflags="-mcpu=603"
2173             disable altivec
2174         ;;
2175         604*|ppc604*|powerpc604*)
2176             cpuflags="-mcpu=604"
2177             disable altivec
2178         ;;
2179         g3|75*|ppc75*|powerpc75*)
2180             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2181             disable altivec
2182         ;;
2183         g4|745*|ppc745*|powerpc745*)
2184             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2185         ;;
2186         74*|ppc74*|powerpc74*)
2187             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2188         ;;
2189         g5|970|ppc970|powerpc970|power4*)
2190             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2191         ;;
2192         cell)
2193             cpuflags="-mcpu=cell"
2194             enable ldbrx
2195         ;;
2196         e500v2)
2197             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2198             disable altivec
2199         ;;
2200         e500)
2201             cpuflags="-mcpu=8540 -mhard-float"
2202             disable altivec
2203         ;;
2204     esac
2205
2206 elif enabled x86; then
2207
2208     case $cpu in
2209         i[345]86|pentium)
2210             cpuflags="-march=$cpu"
2211             disable mmx
2212         ;;
2213         # targets that do NOT support conditional mov (cmov)
2214         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2215             cpuflags="-march=$cpu"
2216             disable cmov
2217         ;;
2218         # targets that do support conditional mov (cmov)
2219         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2220             cpuflags="-march=$cpu"
2221             enable cmov
2222             enable fast_cmov
2223         ;;
2224         # targets that do support conditional mov but on which it's slow
2225         pentium4|pentium4m|prescott|nocona)
2226             cpuflags="-march=$cpu"
2227             enable cmov
2228             disable fast_cmov
2229         ;;
2230     esac
2231
2232 elif enabled sparc; then
2233
2234     case $cpu in
2235         niagara)
2236             cpuflags="-mcpu=$cpu"
2237             disable vis
2238         ;;
2239         sparc64)
2240             cpuflags="-mcpu=v9"
2241         ;;
2242     esac
2243
2244 elif enabled arm; then
2245
2246     case $cpu in
2247         armv*)
2248             cpuflags="-march=$cpu"
2249             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2250         ;;
2251         *)
2252             cpuflags="-mcpu=$cpu"
2253             case $cpu in
2254                 cortex-a*)                               subarch=armv7a  ;;
2255                 cortex-r*)                               subarch=armv7r  ;;
2256                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2257                 arm11*)                                  subarch=armv6   ;;
2258                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2259                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2260             esac
2261         ;;
2262     esac
2263
2264 elif enabled alpha; then
2265
2266     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2267
2268 elif enabled bfin; then
2269
2270     cpuflags="-mcpu=$cpu"
2271
2272 elif enabled mips; then
2273
2274     cpuflags="-march=$cpu"
2275
2276 elif enabled avr32; then
2277
2278     case $cpu in
2279         ap7[02]0[0-2])
2280             subarch="avr32_ap"
2281             cpuflags="-mpart=$cpu"
2282         ;;
2283         ap)
2284             subarch="avr32_ap"
2285             cpuflags="-march=$cpu"
2286         ;;
2287         uc3[ab]*)
2288             subarch="avr32_uc"
2289             cpuflags="-mcpu=$cpu"
2290         ;;
2291         uc)
2292             subarch="avr32_uc"
2293             cpuflags="-march=$cpu"
2294         ;;
2295     esac
2296
2297 fi
2298
2299 add_cflags $cpuflags
2300 add_asflags $cpuflags
2301
2302 # compiler sanity check
2303 check_exec <<EOF
2304 int main(void){ return 0; }
2305 EOF
2306 if test "$?" != 0; then
2307     echo "$cc is unable to create an executable file."
2308     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2309         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2310         echo "Only do this if you know what cross compiling means."
2311     fi
2312     die "C compiler test failed."
2313 fi
2314
2315 add_cppflags -D_ISOC99_SOURCE
2316 check_cflags -std=c99
2317 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2318 #include <stdlib.h>
2319 EOF
2320 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2321 #include <stdlib.h>
2322 EOF
2323
2324 check_host_cflags -std=c99
2325 check_host_cflags -Wall
2326
2327 case "$arch" in
2328     alpha|ia64|mips|parisc|sparc)
2329         spic=$shared
2330     ;;
2331     x86)
2332         subarch="x86_32"
2333         check_cc <<EOF && subarch="x86_64"
2334         int test[(int)sizeof(char*) - 7];
2335 EOF
2336         if test "$subarch" = "x86_64"; then
2337             spic=$shared
2338         fi
2339     ;;
2340 esac
2341
2342 enable $subarch
2343 enabled spic && enable pic
2344
2345 # OS specific
2346 case $target_os in
2347     haiku)
2348         prefix_default="/boot/common"
2349         network_extralibs="-lnetwork"
2350         host_libs=
2351         ;;
2352     sunos)
2353         FFSERVERLDFLAGS=""
2354         SHFLAGS='-shared -Wl,-h,$$(@F)'
2355         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2356         network_extralibs="-lsocket -lnsl"
2357         add_cppflags -D__EXTENSIONS__
2358         nm_opts='-P -g'
2359         ;;
2360     netbsd)
2361         disable symver
2362         oss_indev_extralibs="-lossaudio"
2363         oss_outdev_extralibs="-lossaudio"
2364         ;;
2365     openbsd)
2366         enable malloc_aligned
2367         # On OpenBSD 4.5. the compiler does not use PIC unless
2368         # explicitly using -fPIC. Libav builds fine without PIC,
2369         # however the generated executable will not do anything
2370         # (simply quits with exit-code 1, no crash, no output).
2371         # Thus explicitly enable PIC here.
2372         enable pic
2373         disable symver
2374         SHFLAGS='-shared'
2375         oss_indev_extralibs="-lossaudio"
2376         oss_outdev_extralibs="-lossaudio"
2377         ;;
2378     dragonfly)
2379         enable malloc_aligned
2380         disable symver
2381         ;;
2382     freebsd)
2383         enable malloc_aligned
2384         ;;
2385     bsd/os)
2386         add_extralibs -lpoll -lgnugetopt
2387         ;;
2388     darwin)
2389         enable malloc_aligned
2390         gas="gas-preprocessor.pl $cc"
2391         enabled ppc && add_asflags -force_cpusubtype_ALL
2392         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2393         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2394         add_ldflags -Wl,-dynamic,-search_paths_first
2395         SLIBSUF=".dylib"
2396         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2397         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2398         FFSERVERLDFLAGS=-Wl,-bind_at_load
2399         objformat="macho"
2400         enabled x86_64 && objformat="macho64"
2401         enabled_any pic shared ||
2402             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2403         ;;
2404     mingw32*)
2405         if test $target_os = "mingw32ce"; then
2406             disable network
2407         else
2408             target_os=mingw32
2409         fi
2410         LIBTARGET=i386
2411         if enabled x86_64; then
2412             enable malloc_aligned
2413             LIBTARGET="i386:x86-64"
2414         elif enabled arm; then
2415             LIBTARGET=arm-wince
2416         fi
2417         shlibdir_default="$bindir_default"
2418         SLIBPREF=""
2419         SLIBSUF=".dll"
2420         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2421         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2422         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2423         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2424             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2425             install -d "$(LIBDIR)"; \
2426             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2427         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2428         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'
2429         objformat="win32"
2430         dlltool="${cross_prefix}dlltool"
2431         enable dos_paths
2432         check_cflags -fno-common
2433         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2434                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2435                 die "ERROR: MinGW runtime version must be >= 3.15."
2436         add_cppflags -U__STRICT_ANSI__
2437         ;;
2438     cygwin*)
2439         target_os=cygwin
2440         shlibdir_default="$bindir_default"
2441         SLIBPREF="cyg"
2442         SLIBSUF=".dll"
2443         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2444         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2445         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2446         objformat="win32"
2447         enable dos_paths
2448         check_cflags -fno-common
2449         add_cppflags -U__STRICT_ANSI__
2450         ;;
2451     *-dos|freedos|opendos)
2452         network_extralibs="-lsocket"
2453         objformat="coff"
2454         enable dos_paths
2455         add_cppflags -U__STRICT_ANSI__
2456         ;;
2457     linux)
2458         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2459         enable dv1394
2460         ;;
2461     irix*)
2462         target_os=irix
2463         ranlib="echo ignoring ranlib"
2464         ;;
2465     os/2*)
2466         ln_s="cp -f"
2467         objformat="aout"
2468         add_cppflags -D_GNU_SOURCE
2469         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2470         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2471         FFSERVERLDFLAGS=""
2472         LIBSUF="_s.a"
2473         SLIBPREF=""
2474         SLIBSUF=".dll"
2475         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2476         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2477         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2478           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2479           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2480           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2481           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2482           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2483         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2484           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2485         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2486         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2487         enable dos_paths
2488         ;;
2489     gnu/kfreebsd)
2490         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2491         ;;
2492     gnu)
2493         ;;
2494     qnx)
2495         add_cppflags -D_QNX_SOURCE
2496         network_extralibs="-lsocket"
2497         ;;
2498     symbian)
2499         SLIBSUF=".dll"
2500         enable dos_paths
2501         add_cflags --include=$sysinclude/gcce/gcce.h
2502         ;;
2503     none)
2504         ;;
2505     *)
2506         die "Unknown OS '$target_os'."
2507         ;;
2508 esac
2509
2510 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2511
2512 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2513
2514 set_default $PATHS_LIST
2515
2516 # we need to build at least one lib type
2517 if ! enabled_any static shared; then
2518     cat <<EOF
2519 At least one library type must be built.
2520 Specify --enable-static to build the static libraries or --enable-shared to
2521 build the shared libraries as well. To only build the shared libraries specify
2522 --disable-static in addition to --enable-shared.
2523 EOF
2524     exit 1;
2525 fi
2526
2527 disabled static && LIBNAME=""
2528
2529 die_license_disabled() {
2530     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2531 }
2532
2533 die_license_disabled gpl libx264
2534 die_license_disabled gpl libxavs
2535 die_license_disabled gpl libxvid
2536 die_license_disabled gpl x11grab
2537
2538 die_license_disabled nonfree libfaac
2539
2540 die_license_disabled version3 libopencore_amrnb
2541 die_license_disabled version3 libopencore_amrwb
2542 die_license_disabled version3 libvo_aacenc
2543 die_license_disabled version3 libvo_amrwbenc
2544
2545 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2546
2547 disabled optimizations || check_cflags -fomit-frame-pointer
2548
2549 enable_pic() {
2550     enable pic
2551     add_cppflags -DPIC
2552     add_cflags   -fPIC
2553     add_asflags  -fPIC
2554 }
2555
2556 enabled pic && enable_pic
2557
2558 check_cc <<EOF || die "Symbol mangling check failed."
2559 int ff_extern;
2560 EOF
2561 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2562 extern_prefix=${sym%%ff_extern*}
2563
2564 check_cc <<EOF && enable inline_asm
2565 void foo(void) { __asm__ volatile ("" ::); }
2566 EOF
2567
2568 _restrict=
2569 for restrict_keyword in restrict __restrict__ __restrict; do
2570     check_cc <<EOF && _restrict=$restrict_keyword && break
2571 void foo(char * $restrict_keyword p);
2572 EOF
2573 done
2574
2575 check_cc <<EOF && enable attribute_packed
2576 struct { int x; } __attribute__((packed)) x;
2577 EOF
2578
2579 check_cc <<EOF && enable attribute_may_alias
2580 union { int x; } __attribute__((may_alias)) x;
2581 EOF
2582
2583 check_cc <<EOF || die "endian test failed"
2584 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2585 EOF
2586 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2587
2588 if enabled alpha; then
2589
2590     check_cflags -mieee
2591
2592 elif enabled arm; then
2593
2594     enabled thumb && check_cflags -mthumb || check_cflags -marm
2595     nogas=die
2596
2597     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2598         enable vfp_args
2599     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2600         case "${cross_prefix:-$cc}" in
2601             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2602             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2603 __asm__ (".eabi_attribute 28, 1");
2604 int main(void) { return 0; }
2605 EOF
2606         esac
2607         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2608     fi
2609
2610     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2611     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2612     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2613     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2614     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2615     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2616     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2617
2618     enabled_all armv6t2 shared !pic && enable_pic
2619
2620 elif enabled mips; then
2621
2622     check_asm loongson '"dmult.g $1, $2, $3"'
2623     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2624
2625 elif enabled ppc; then
2626
2627     enable local_aligned_8 local_aligned_16
2628
2629     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2630     check_asm ibm_asm   '"add 0, 0, 0"'
2631     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2632     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2633
2634     # AltiVec flags: The FSF version of GCC differs from the Apple version
2635     if enabled altivec; then
2636         nogas=warn
2637         check_cflags -maltivec -mabi=altivec &&
2638         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2639         check_cflags -faltivec
2640
2641         # check if our compiler supports Motorola AltiVec C API
2642         check_cc <<EOF || disable altivec
2643 $inc_altivec_h
2644 int main(void) {
2645     vector signed int v1, v2, v3;
2646     v1 = vec_add(v2,v3);
2647     return 0;
2648 }
2649 EOF
2650
2651         # check if our compiler supports braces for vector declarations
2652         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2653 $inc_altivec_h
2654 int main (void) { (vector int) {1}; return 0; }
2655 EOF
2656     fi
2657
2658 elif enabled sparc; then
2659
2660     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2661         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2662
2663 elif enabled x86; then
2664
2665     enable local_aligned_8 local_aligned_16
2666
2667     # check whether EBP is available on x86
2668     # As 'i' is stored on the stack, this program will crash
2669     # if the base pointer is used to access it because the
2670     # base pointer is cleared in the inline assembly code.
2671     check_exec_crash <<EOF && enable ebp_available
2672     volatile int i=0;
2673     __asm__ volatile (
2674         "xorl %%ebp, %%ebp"
2675     ::: "%ebp");
2676     return i;
2677 EOF
2678
2679     # check whether EBX is available on x86
2680     check_asm ebx_available '""::"b"(0)' &&
2681         check_asm ebx_available '"":::"%ebx"'
2682
2683     # check whether xmm clobbers are supported
2684     check_asm xmm_clobbers '"":::"%xmm0"'
2685
2686     # check whether binutils is new enough to compile SSSE3/MMX2
2687     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2688     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2689
2690     check_asm bswap '"bswap %%eax" ::: "%eax"'
2691
2692     if ! disabled_any asm mmx yasm; then
2693         if check_cmd $yasmexe --version; then
2694             enabled x86_64 && yasm_extra="-m amd64"
2695             yasm_debug="-g dwarf2"
2696         elif check_cmd nasm -v; then
2697             yasmexe=nasm
2698             yasm_debug="-g -F dwarf"
2699             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2700         fi
2701
2702         YASMFLAGS="-f $objformat $yasm_extra"
2703         enabled pic               && append YASMFLAGS "-DPIC"
2704         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2705         case "$objformat" in
2706             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2707         esac
2708
2709         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2710             die "yasm not found, use --disable-yasm for a crippled build"
2711         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2712     fi
2713
2714     case "$cpu" in
2715         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2716             disable fast_clz
2717         ;;
2718     esac
2719
2720 fi
2721
2722 if enabled asm; then
2723     as=${gas:=$as}
2724     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2725         $nogas "GNU assembler not found, install gas-preprocessor"
2726 fi
2727
2728 check_ldflags -Wl,--as-needed
2729
2730 if check_func dlopen; then
2731     ldl=
2732 elif check_func dlopen -ldl; then
2733     ldl=-ldl
2734 fi
2735
2736 if enabled network; then
2737     check_type "sys/types.h sys/socket.h" socklen_t
2738     check_type netdb.h "struct addrinfo"
2739     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2740     check_type netinet/in.h "struct sockaddr_in6"
2741     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2742     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2743     # Prefer arpa/inet.h over winsock2
2744     if check_header arpa/inet.h ; then
2745         check_func closesocket
2746     elif check_header winsock2.h ; then
2747         check_func_headers winsock2.h closesocket -lws2 && \
2748             network_extralibs="-lws2" || \
2749         { check_func_headers winsock2.h closesocket -lws2_32 && \
2750             network_extralibs="-lws2_32"; }
2751         check_type ws2tcpip.h socklen_t
2752         check_type ws2tcpip.h "struct addrinfo"
2753         check_type ws2tcpip.h "struct ipv6_mreq"
2754         check_type ws2tcpip.h "struct sockaddr_in6"
2755         check_type ws2tcpip.h "struct sockaddr_storage"
2756         check_struct winsock2.h "struct sockaddr" sa_len
2757     else
2758         disable network
2759     fi
2760 fi
2761
2762 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2763 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2764
2765 check_func  fcntl
2766 check_func  fork
2767 check_func  getaddrinfo $network_extralibs
2768 check_func  gethrtime
2769 check_func  getrusage
2770 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2771 check_func  inet_aton $network_extralibs
2772 check_func  isatty
2773 check_func  localtime_r
2774 check_func  ${malloc_prefix}memalign            && enable memalign
2775 check_func  mkstemp
2776 check_func  mmap
2777 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2778 check_func  setrlimit
2779 check_func  strerror_r
2780 check_func  strtok_r
2781 check_func_headers io.h setmode
2782 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2783 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2784 check_func_headers windows.h GetProcessTimes
2785 check_func_headers windows.h MapViewOfFile
2786 check_func_headers windows.h VirtualAlloc
2787
2788 check_header dlfcn.h
2789 check_header dxva2api.h
2790 check_header malloc.h
2791 check_header poll.h
2792 check_header sys/mman.h
2793 check_header sys/resource.h
2794 check_header sys/select.h
2795 check_header vdpau/vdpau.h
2796 check_header vdpau/vdpau_x11.h
2797 check_header X11/extensions/XvMClib.h
2798
2799 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2800
2801 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2802 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2803
2804 # check for some common methods of building with pthread support
2805 # do this before the optional library checks as some of them require pthreads
2806 if ! disabled pthreads && ! enabled w32threads; then
2807     enable pthreads
2808     if check_func pthread_create; then
2809         :
2810     elif check_func pthread_create -pthread; then
2811         add_cflags -pthread
2812         add_extralibs -pthread
2813     elif check_func pthread_create -pthreads; then
2814         add_cflags -pthreads
2815         add_extralibs -pthreads
2816     elif check_func pthread_create -lpthreadGC2; then
2817         add_extralibs -lpthreadGC2
2818     elif ! check_lib pthread.h pthread_create -lpthread; then
2819         disable pthreads
2820     fi
2821 fi
2822
2823 for thread in $THREADS_LIST; do
2824     if enabled $thread; then
2825         test -n "$thread_type" &&
2826             die "ERROR: Only one thread type must be selected." ||
2827             thread_type="$thread"
2828     fi
2829 done
2830
2831 check_lib math.h sin -lm && LIBM="-lm"
2832 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2833
2834 check_mathfunc exp2
2835 check_mathfunc exp2f
2836 check_mathfunc llrint
2837 check_mathfunc llrintf
2838 check_mathfunc log2
2839 check_mathfunc log2f
2840 check_mathfunc lrint
2841 check_mathfunc lrintf
2842 check_mathfunc round
2843 check_mathfunc roundf
2844 check_mathfunc trunc
2845 check_mathfunc truncf
2846
2847 # these are off by default, so fail if requested and not available
2848 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2849 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2850 enabled libdirac   && require_pkg_config dirac                          \
2851     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2852     "dirac_decoder_init dirac_encoder_init"
2853 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2854 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2855 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2856 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2857 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2858 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2859 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2860 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2861 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2862 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2863 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2864 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2865 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2866 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2867 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2868 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2869 enabled libvpx     && {
2870     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2871                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2872     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2873                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2874 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2875                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2876                         die "ERROR: libx264 version must be >= 0.115."; }
2877 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2878 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2879 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2880
2881 # libdc1394 check
2882 if enabled libdc1394; then
2883     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2884         enable libdc1394_2; } ||
2885     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2886         enable libdc1394_1; } ||
2887     die "ERROR: No version of libdc1394 found "
2888 fi
2889
2890 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2891     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2892     enable sdl &&
2893     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2894 fi
2895
2896 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2897
2898 check_header linux/fb.h
2899 check_header linux/videodev.h
2900 check_header linux/videodev2.h
2901 check_header sys/videoio.h
2902
2903 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2904 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2905 # w32api 3.12 had it defined wrong
2906 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2907
2908 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2909 { check_header dev/bktr/ioctl_meteor.h &&
2910   check_header dev/bktr/ioctl_bt848.h; } ||
2911 { check_header machine/ioctl_meteor.h &&
2912   check_header machine/ioctl_bt848.h; } ||
2913 { check_header dev/video/meteor/ioctl_meteor.h &&
2914   check_header dev/video/bktr/ioctl_bt848.h; } ||
2915 check_header dev/ic/bt8xx.h
2916
2917 check_header sndio.h
2918 check_header sys/soundcard.h
2919 check_header soundcard.h
2920
2921 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2922
2923 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2924
2925 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2926
2927 enabled x11grab                         &&
2928 check_header X11/Xlib.h                 &&
2929 check_header X11/extensions/XShm.h      &&
2930 check_header X11/extensions/Xfixes.h    &&
2931 check_func XOpenDisplay -lX11           &&
2932 check_func XShmCreateImage -lX11 -lXext &&
2933 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2934
2935 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2936 check_cpp_condition \
2937     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2938     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2939       disable vdpau; }
2940 fi
2941
2942 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2943
2944 # add some useful compiler flags if supported
2945 check_cflags -Wdeclaration-after-statement
2946 check_cflags -Wall
2947 check_cflags -Wno-parentheses
2948 check_cflags -Wno-switch
2949 check_cflags -Wno-format-zero-length
2950 check_cflags -Wdisabled-optimization
2951 check_cflags -Wpointer-arith
2952 check_cflags -Wredundant-decls
2953 check_cflags -Wno-pointer-sign
2954 check_cflags -Wcast-qual
2955 check_cflags -Wwrite-strings
2956 check_cflags -Wtype-limits
2957 check_cflags -Wundef
2958 check_cflags -Wmissing-prototypes
2959 enabled extra_warnings && check_cflags -Winline
2960
2961 # add some linker flags
2962 check_ldflags -Wl,--warn-common
2963 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
2964 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2965
2966 echo "X{};" > $TMPV
2967 if test_ldflags -Wl,--version-script,$TMPV; then
2968     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2969     check_cc <<EOF && enable symver_asm_label
2970 void ff_foo(void) __asm__ ("av_foo@VERSION");
2971 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2972 EOF
2973     check_cc <<EOF && enable symver_gnu_asm
2974 __asm__(".symver ff_foo,av_foo@VERSION");
2975 void ff_foo(void) {}
2976 EOF
2977 fi
2978
2979 if [ -n "$optflags" ]; then
2980     add_cflags $optflags
2981 elif enabled small; then
2982     add_cflags $size_cflags
2983 elif enabled optimizations; then
2984     add_cflags $speed_cflags
2985 else
2986     add_cflags $noopt_cflags
2987 fi
2988 check_cflags -fno-math-errno
2989 check_cflags -fno-signed-zeros
2990
2991 if enabled icc; then
2992     # Just warnings, no remarks
2993     check_cflags -w1
2994     # -wd: Disable following warnings
2995     # 144, 167, 556: -Wno-pointer-sign
2996     # 1292: attribute "foo" ignored
2997     # 10006: ignoring unknown option -fno-signed-zeros
2998     # 10148: ignoring unknown option -Wno-parentheses
2999     # 10156: ignoring option '-W'; no argument required
3000     check_cflags -wd144,167,556,1292,10006,10148,10156
3001     # 11030: Warning unknown option --as-needed
3002     # 10156: ignoring option '-export'; no argument required
3003     check_ldflags -wd10156,11030
3004     # Allow to compile with optimizations
3005     check_ldflags -march=$cpu
3006     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3007     enable ebp_available
3008     if enabled x86_32; then
3009         test ${icc_version%%.*} -ge 11 && \
3010             check_cflags -falign-stack=maintain-16-byte || \
3011             disable aligned_stack
3012     fi
3013 elif enabled ccc; then
3014     # disable some annoying warnings
3015     add_cflags -msg_disable cvtu32to64
3016     add_cflags -msg_disable embedcomment
3017     add_cflags -msg_disable needconstext
3018     add_cflags -msg_disable nomainieee
3019     add_cflags -msg_disable ptrmismatch1
3020     add_cflags -msg_disable unreachcode
3021 elif enabled gcc; then
3022     check_cflags -fno-tree-vectorize
3023     check_cflags -Werror=implicit-function-declaration
3024     check_cflags -Werror=missing-prototypes
3025 elif enabled llvm_gcc; then
3026     check_cflags -mllvm -stack-alignment=16
3027 elif enabled clang; then
3028     check_cflags -mllvm -stack-alignment=16
3029     check_cflags -Qunused-arguments
3030 elif enabled armcc; then
3031     # 2523: use of inline assembler is deprecated
3032     add_cflags -W${armcc_opt},--diag_suppress=2523
3033     add_cflags -W${armcc_opt},--diag_suppress=1207
3034     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3035     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3036     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3037     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3038 elif enabled tms470; then
3039     add_cflags -pds=824 -pds=837
3040 elif enabled pathscale; then
3041     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3042 fi
3043
3044 enabled_any $THREADS_LIST      && enable threads
3045
3046 check_deps $CONFIG_LIST       \
3047            $CONFIG_EXTRA      \
3048            $HAVE_LIST         \
3049            $DECODER_LIST      \
3050            $ENCODER_LIST      \
3051            $HWACCEL_LIST      \
3052            $PARSER_LIST       \
3053            $BSF_LIST          \
3054            $DEMUXER_LIST      \
3055            $MUXER_LIST        \
3056            $FILTER_LIST       \
3057            $INDEV_LIST        \
3058            $OUTDEV_LIST       \
3059            $PROTOCOL_LIST     \
3060            $ACODEC_TESTS      \
3061            $VCODEC_TESTS      \
3062            $LAVF_TESTS        \
3063            $LAVFI_TESTS       \
3064            $SEEK_TESTS        \
3065
3066 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3067
3068 ! enabled_any memalign posix_memalign malloc_aligned &&
3069     enabled_any $need_memalign && enable memalign_hack
3070
3071 echo "install prefix            $prefix"
3072 echo "source path               $source_path"
3073 echo "C compiler                $cc"
3074 echo "ARCH                      $arch ($cpu)"
3075 if test "$build_suffix" != ""; then
3076     echo "build suffix              $build_suffix"
3077 fi
3078 if test "$extra_version" != ""; then
3079     echo "version string suffix     $extra_version"
3080 fi
3081 echo "big-endian                ${bigendian-no}"
3082 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3083 if enabled x86; then
3084     echo "${yasmexe}                      ${yasm-no}"
3085     echo "MMX enabled               ${mmx-no}"
3086     echo "MMX2 enabled              ${mmx2-no}"
3087     echo "3DNow! enabled            ${amd3dnow-no}"
3088     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3089     echo "SSE enabled               ${sse-no}"
3090     echo "SSSE3 enabled             ${ssse3-no}"
3091     echo "AVX enabled               ${avx-no}"
3092     echo "CMOV enabled              ${cmov-no}"
3093     echo "CMOV is fast              ${fast_cmov-no}"
3094     echo "EBX available             ${ebx_available-no}"
3095     echo "EBP available             ${ebp_available-no}"
3096 fi
3097 if enabled arm; then
3098     echo "ARMv5TE enabled           ${armv5te-no}"
3099     echo "ARMv6 enabled             ${armv6-no}"
3100     echo "ARMv6T2 enabled           ${armv6t2-no}"
3101     echo "ARM VFP enabled           ${armvfp-no}"
3102     echo "IWMMXT enabled            ${iwmmxt-no}"
3103     echo "NEON enabled              ${neon-no}"
3104 fi
3105 if enabled mips; then
3106     echo "MMI enabled               ${mmi-no}"
3107 fi
3108 if enabled ppc; then
3109     echo "AltiVec enabled           ${altivec-no}"
3110     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3111     echo "dcbzl available           ${dcbzl-no}"
3112 fi
3113 if enabled sparc; then
3114     echo "VIS enabled               ${vis-no}"
3115 fi
3116 echo "debug symbols             ${debug-no}"
3117 echo "optimize for size         ${small-no}"
3118 echo "optimizations             ${optimizations-no}"
3119 echo "static                    ${static-no}"
3120 echo "shared                    ${shared-no}"
3121 echo "postprocessing support    ${postproc-no}"
3122 echo "new filter support        ${avfilter-no}"
3123 echo "network support           ${network-no}"
3124 echo "threading support         ${thread_type-no}"
3125 echo "SDL support               ${sdl-no}"
3126 echo "Sun medialib support      ${mlib-no}"
3127 echo "AVISynth enabled          ${avisynth-no}"
3128 echo "frei0r enabled            ${frei0r-no}"
3129 echo "libdc1394 support         ${libdc1394-no}"
3130 echo "libdirac enabled          ${libdirac-no}"
3131 echo "libfaac enabled           ${libfaac-no}"
3132 echo "libgsm enabled            ${libgsm-no}"
3133 echo "libmp3lame enabled        ${libmp3lame-no}"
3134 echo "libnut enabled            ${libnut-no}"
3135 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3136 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3137 echo "libopencv support         ${libopencv-no}"
3138 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3139 echo "librtmp enabled           ${librtmp-no}"
3140 echo "libschroedinger enabled   ${libschroedinger-no}"
3141 echo "libspeex enabled          ${libspeex-no}"
3142 echo "libtheora enabled         ${libtheora-no}"
3143 echo "libva enabled             ${vaapi-no}"
3144 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3145 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3146 echo "libvorbis enabled         ${libvorbis-no}"
3147 echo "libvpx enabled            ${libvpx-no}"
3148 echo "libx264 enabled           ${libx264-no}"
3149 echo "libxavs enabled           ${libxavs-no}"
3150 echo "libxvid enabled           ${libxvid-no}"
3151 echo "zlib enabled              ${zlib-no}"
3152 echo "bzlib enabled             ${bzlib-no}"
3153 echo
3154
3155 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3156     echo "Enabled ${type}s:"
3157     eval list=\$$(toupper $type)_LIST
3158     print_enabled '_*' $list | sort | pr -r -3 -t
3159     echo
3160 done
3161
3162 license="LGPL version 2.1 or later"
3163 if enabled nonfree; then
3164     license="nonfree and unredistributable"
3165 elif enabled gplv3; then
3166     license="GPL version 3 or later"
3167 elif enabled lgplv3; then
3168     license="LGPL version 3 or later"
3169 elif enabled gpl; then
3170     license="GPL version 2 or later"
3171 fi
3172
3173 echo "License: $license"
3174
3175 echo "Creating config.mak and config.h..."
3176
3177 test -e Makefile || $ln_s "$source_path/Makefile" .
3178
3179 config_files="$TMPH config.mak"
3180
3181 cat > config.mak <<EOF
3182 # Automatically generated by configure - do not modify!
3183 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3184 prefix=$prefix
3185 LIBDIR=\$(DESTDIR)$libdir
3186 SHLIBDIR=\$(DESTDIR)$shlibdir
3187 INCDIR=\$(DESTDIR)$incdir
3188 BINDIR=\$(DESTDIR)$bindir
3189 DATADIR=\$(DESTDIR)$datadir
3190 MANDIR=\$(DESTDIR)$mandir
3191 SRC_PATH=$source_path
3192 CC_IDENT=$cc_ident
3193 ARCH=$arch
3194 CC=$cc
3195 AS=$as
3196 LD=$ld
3197 DEPCC=$dep_cc
3198 YASM=$yasmexe
3199 YASMDEP=$yasmexe
3200 AR=$ar
3201 RANLIB=$ranlib
3202 LN_S=$ln_s
3203 CPPFLAGS=$CPPFLAGS
3204 CFLAGS=$CFLAGS
3205 ASFLAGS=$ASFLAGS
3206 AS_O=$CC_O
3207 CC_O=$CC_O
3208 DLLTOOL=$dlltool
3209 LDFLAGS=$LDFLAGS
3210 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3211 SHFLAGS=$SHFLAGS
3212 YASMFLAGS=$YASMFLAGS
3213 BUILDSUF=$build_suffix
3214 FULLNAME=$FULLNAME
3215 LIBPREF=$LIBPREF
3216 LIBSUF=$LIBSUF
3217 LIBNAME=$LIBNAME
3218 SLIBPREF=$SLIBPREF
3219 SLIBSUF=$SLIBSUF
3220 EXESUF=$EXESUF
3221 EXTRA_VERSION=$extra_version
3222 DEPFLAGS=$DEPFLAGS
3223 CCDEP=$CCDEP
3224 ASDEP=$ASDEP
3225 CC_DEPFLAGS=$CC_DEPFLAGS
3226 AS_DEPFLAGS=$AS_DEPFLAGS
3227 HOSTCC=$host_cc
3228 HOSTCFLAGS=$host_cflags
3229 HOSTEXESUF=$HOSTEXESUF
3230 HOSTLDFLAGS=$host_ldflags
3231 HOSTLIBS=$host_libs
3232 TARGET_EXEC=$target_exec
3233 TARGET_PATH=$target_path
3234 SDL_LIBS=$sdl_libs
3235 SDL_CFLAGS=$sdl_cflags
3236 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3237 EXTRALIBS=$extralibs
3238 INSTALL=install
3239 LIBTARGET=${LIBTARGET}
3240 SLIBNAME=${SLIBNAME}
3241 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3242 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3243 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3244 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3245 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3246 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3247 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3248 EOF
3249
3250 get_version(){
3251     name=$1
3252     file=$source_path/$2
3253     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3254     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3255     lcname=$(tolower $name)
3256     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3257     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3258 }
3259
3260 get_version LIBSWSCALE  libswscale/swscale.h
3261 get_version LIBPOSTPROC libpostproc/postprocess.h
3262 get_version LIBAVCODEC  libavcodec/version.h
3263 get_version LIBAVDEVICE libavdevice/avdevice.h
3264 get_version LIBAVFORMAT libavformat/version.h
3265 get_version LIBAVUTIL   libavutil/avutil.h
3266 get_version LIBAVFILTER libavfilter/avfilter.h
3267
3268 cat > $TMPH <<EOF
3269 /* Automatically generated by configure - do not modify! */
3270 #ifndef LIBAV_CONFIG_H
3271 #define LIBAV_CONFIG_H
3272 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3273 #define LIBAV_LICENSE "$(c_escape $license)"
3274 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3275 #define CC_TYPE "$cc_type"
3276 #define CC_VERSION $cc_version
3277 #define restrict $_restrict
3278 #define EXTERN_PREFIX "${extern_prefix}"
3279 #define EXTERN_ASM ${extern_prefix}
3280 #define SLIBSUF "$SLIBSUF"
3281 EOF
3282
3283 test -n "$malloc_prefix" &&
3284     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3285
3286 if enabled small || disabled optimizations; then
3287     echo "#undef  av_always_inline"  >> $TMPH
3288     if enabled small; then
3289         echo "#define av_always_inline inline"  >> $TMPH
3290     else
3291         echo "#define av_always_inline av_unused"  >> $TMPH
3292     fi
3293 fi
3294
3295 if enabled yasm; then
3296     append config_files $TMPASM
3297     printf '' >$TMPASM
3298 fi
3299
3300 print_config ARCH_   "$config_files" $ARCH_LIST
3301 print_config HAVE_   "$config_files" $HAVE_LIST
3302 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3303                                      $CONFIG_EXTRA      \
3304                                      $DECODER_LIST      \
3305                                      $ENCODER_LIST      \
3306                                      $HWACCEL_LIST      \
3307                                      $PARSER_LIST       \
3308                                      $BSF_LIST          \
3309                                      $DEMUXER_LIST      \
3310                                      $MUXER_LIST        \
3311                                      $FILTER_LIST       \
3312                                      $PROTOCOL_LIST     \
3313                                      $INDEV_LIST        \
3314                                      $OUTDEV_LIST       \
3315
3316 cat >>config.mak <<EOF
3317 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3318 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3319 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3320 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3321 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3322 EOF
3323
3324 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3325
3326 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3327 cp_if_changed $TMPH config.h
3328 touch .config
3329
3330 enabled yasm && cp_if_changed $TMPASM config.asm
3331
3332 cat > $TMPH <<EOF
3333 /* Generated by ffconf */
3334 #ifndef AVUTIL_AVCONFIG_H
3335 #define AVUTIL_AVCONFIG_H
3336 EOF
3337
3338 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3339
3340 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3341
3342 cp_if_changed $TMPH libavutil/avconfig.h
3343
3344 test -n "$WARNINGS" && printf "\n$WARNINGS"
3345
3346 # build pkg-config files
3347
3348 pkgconfig_generate(){
3349 name=$1
3350 shortname=${name#lib}${build_suffix}
3351 comment=$2
3352 version=$3
3353 libs=$4
3354 requires=$5
3355 enabled ${name#lib} || return 0
3356 mkdir -p $name
3357 cat <<EOF > $name/$name.pc
3358 prefix=$prefix
3359 exec_prefix=\${prefix}
3360 libdir=$libdir
3361 includedir=$incdir
3362
3363 Name: $name
3364 Description: $comment
3365 Version: $version
3366 Requires: $(enabled shared || echo $requires)
3367 Requires.private: $(enabled shared && echo $requires)
3368 Conflicts:
3369 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3370 Libs.private: $(enabled shared && echo $libs)
3371 Cflags: -I\${includedir}
3372 EOF
3373 cat <<EOF > $name/$name-uninstalled.pc
3374 prefix=
3375 exec_prefix=
3376 libdir=\${pcfiledir}
3377 includedir=${source_path}
3378
3379 Name: $name
3380 Description: $comment
3381 Version: $version
3382 Requires: $requires
3383 Conflicts:
3384 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3385 Cflags: -I\${includedir}
3386 EOF
3387 }
3388
3389 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3390 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3391 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3392 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3393 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3394 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3395 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"