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     strptime
1109     strtok_r
1110     struct_addrinfo
1111     struct_ipv6_mreq
1112     struct_sockaddr_in6
1113     struct_sockaddr_sa_len
1114     struct_sockaddr_storage
1115     symver
1116     symver_gnu_asm
1117     symver_asm_label
1118     sys_mman_h
1119     sys_resource_h
1120     sys_select_h
1121     sys_soundcard_h
1122     sys_videoio_h
1123     threads
1124     trunc
1125     truncf
1126     vfp_args
1127     VirtualAlloc
1128     winsock2_h
1129     xform_asm
1130     xmm_clobbers
1131     yasm
1132 "
1133
1134 # options emitted with CONFIG_ prefix but not available on command line
1135 CONFIG_EXTRA="
1136     avutil
1137     gplv3
1138     lgplv3
1139 "
1140
1141 CMDLINE_SELECT="
1142     $ARCH_EXT_LIST
1143     $CONFIG_LIST
1144     $THREADS_LIST
1145     asm
1146     cross_compile
1147     debug
1148     extra_warnings
1149     logging
1150     optimizations
1151     symver
1152     yasm
1153 "
1154
1155 PATHS_LIST='
1156     bindir
1157     datadir
1158     incdir
1159     libdir
1160     mandir
1161     prefix
1162     shlibdir
1163 '
1164
1165 CMDLINE_SET="
1166     $PATHS_LIST
1167     ar
1168     arch
1169     as
1170     build_suffix
1171     cc
1172     cpu
1173     cross_prefix
1174     dep_cc
1175     extra_version
1176     host_cc
1177     host_cflags
1178     host_ldflags
1179     host_libs
1180     host_os
1181     ld
1182     logfile
1183     malloc_prefix
1184     nm
1185     optflags
1186     pkg_config
1187     samples
1188     sysinclude
1189     sysroot
1190     target_exec
1191     target_os
1192     target_path
1193 "
1194
1195 CMDLINE_APPEND="
1196     extra_cflags
1197 "
1198
1199 # code dependency declarations
1200
1201 # architecture extensions
1202
1203 armv5te_deps="arm"
1204 armv6_deps="arm"
1205 armv6t2_deps="arm"
1206 armvfp_deps="arm"
1207 iwmmxt_deps="arm"
1208 neon_deps="arm"
1209 vfpv3_deps="armvfp"
1210
1211 mmi_deps="mips"
1212
1213 altivec_deps="ppc"
1214 ppc4xx_deps="ppc"
1215
1216 vis_deps="sparc"
1217
1218 x86_64_suggest="cmov fast_cmov"
1219 amd3dnow_deps="mmx"
1220 amd3dnowext_deps="amd3dnow"
1221 mmx_deps="x86"
1222 mmx2_deps="mmx"
1223 sse_deps="mmx"
1224 ssse3_deps="sse"
1225 avx_deps="ssse3"
1226
1227 aligned_stack_if_any="ppc x86"
1228 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1229 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1230 fast_unaligned_if_any="armv6 ppc x86"
1231
1232 need_memalign="altivec neon sse"
1233 inline_asm_deps="!tms470"
1234
1235 symver_if_any="symver_asm_label symver_gnu_asm"
1236
1237 # subsystems
1238 dct_select="rdft"
1239 mdct_select="fft"
1240 rdft_select="fft"
1241 mpegaudiodsp_select="dct"
1242
1243 # decoders / encoders / hardware accelerators
1244 aac_decoder_select="mdct sinewin"
1245 aac_encoder_select="mdct sinewin"
1246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1247 ac3_decoder_select="mdct ac3dsp ac3_parser"
1248 ac3_encoder_select="mdct ac3dsp"
1249 ac3_fixed_encoder_select="mdct ac3dsp"
1250 alac_encoder_select="lpc"
1251 amrnb_decoder_select="lsp"
1252 amrwb_decoder_select="lsp"
1253 atrac1_decoder_select="mdct sinewin"
1254 atrac3_decoder_select="mdct"
1255 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1256 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1257 cavs_decoder_select="golomb"
1258 cook_decoder_select="mdct sinewin"
1259 cscd_decoder_suggest="zlib"
1260 dca_decoder_select="mdct"
1261 dnxhd_encoder_select="aandct"
1262 dxa_decoder_select="zlib"
1263 eac3_decoder_select="ac3_decoder"
1264 eac3_encoder_select="mdct ac3dsp"
1265 eamad_decoder_select="aandct"
1266 eatgq_decoder_select="aandct"
1267 eatqi_decoder_select="aandct"
1268 ffv1_decoder_select="golomb"
1269 flac_decoder_select="golomb"
1270 flac_encoder_select="golomb lpc"
1271 flashsv_decoder_select="zlib"
1272 flashsv_encoder_select="zlib"
1273 flv_decoder_select="h263_decoder"
1274 flv_encoder_select="h263_encoder"
1275 fraps_decoder_select="huffman"
1276 h261_encoder_select="aandct"
1277 h263_decoder_select="h263_parser"
1278 h263_encoder_select="aandct"
1279 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1280 h263i_decoder_select="h263_decoder"
1281 h263p_encoder_select="h263_encoder"
1282 h264_decoder_select="golomb h264dsp h264pred"
1283 h264_dxva2_hwaccel_deps="dxva2api_h"
1284 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1285 h264_vaapi_hwaccel_select="vaapi"
1286 h264_vdpau_decoder_select="vdpau h264_decoder"
1287 imc_decoder_select="fft mdct sinewin"
1288 jpegls_decoder_select="golomb"
1289 jpegls_encoder_select="golomb"
1290 ljpeg_encoder_select="aandct"
1291 loco_decoder_select="golomb"
1292 mjpeg_encoder_select="aandct"
1293 mlp_decoder_select="mlp_parser"
1294 mp1_decoder_select="mpegaudiodsp"
1295 mp2_decoder_select="mpegaudiodsp"
1296 mp3adu_decoder_select="mpegaudiodsp"
1297 mp3_decoder_select="mpegaudiodsp"
1298 mp3on4_decoder_select="mpegaudiodsp"
1299 mp1float_decoder_select="mpegaudiodsp"
1300 mp2float_decoder_select="mpegaudiodsp"
1301 mp3adufloat_decoder_select="mpegaudiodsp"
1302 mp3float_decoder_select="mpegaudiodsp"
1303 mp3on4float_decoder_select="mpegaudiodsp"
1304 mpeg1video_encoder_select="aandct"
1305 mpeg2video_encoder_select="aandct"
1306 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1307 mpeg4_encoder_select="h263_encoder"
1308 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1309 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1310 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1311 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1312 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1313 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1314 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1315 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1316 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1317 msmpeg4v1_decoder_select="h263_decoder"
1318 msmpeg4v1_encoder_select="h263_encoder"
1319 msmpeg4v2_decoder_select="h263_decoder"
1320 msmpeg4v2_encoder_select="h263_encoder"
1321 msmpeg4v3_decoder_select="h263_decoder"
1322 msmpeg4v3_encoder_select="h263_encoder"
1323 nellymoser_decoder_select="mdct sinewin"
1324 nellymoser_encoder_select="mdct sinewin"
1325 png_decoder_select="zlib"
1326 png_encoder_select="zlib"
1327 qcelp_decoder_select="lsp"
1328 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1329 ra_144_encoder_select="lpc"
1330 rv10_decoder_select="h263_decoder"
1331 rv10_encoder_select="h263_encoder"
1332 rv20_decoder_select="h263_decoder"
1333 rv20_encoder_select="h263_encoder"
1334 rv30_decoder_select="golomb h264pred"
1335 rv40_decoder_select="golomb h264pred"
1336 shorten_decoder_select="golomb"
1337 sipr_decoder_select="lsp"
1338 snow_decoder_select="dwt"
1339 snow_encoder_select="aandct dwt"
1340 svq1_encoder_select="aandct"
1341 svq3_decoder_select="golomb h264dsp h264pred"
1342 svq3_decoder_suggest="zlib"
1343 theora_decoder_select="vp3_decoder"
1344 tiff_decoder_suggest="zlib"
1345 tiff_encoder_suggest="zlib"
1346 truehd_decoder_select="mlp_decoder"
1347 tscc_decoder_select="zlib"
1348 twinvq_decoder_select="mdct lsp sinewin"
1349 vc1_decoder_select="h263_decoder"
1350 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1351 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1352 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1353 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1354 vorbis_decoder_select="mdct"
1355 vorbis_encoder_select="mdct"
1356 vp6_decoder_select="huffman"
1357 vp6a_decoder_select="vp6_decoder"
1358 vp6f_decoder_select="vp6_decoder"
1359 vp8_decoder_select="h264pred"
1360 wmapro_decoder_select="mdct sinewin"
1361 wmav1_decoder_select="mdct sinewin"
1362 wmav1_encoder_select="mdct sinewin"
1363 wmav2_decoder_select="mdct sinewin"
1364 wmav2_encoder_select="mdct sinewin"
1365 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1366 wmv1_decoder_select="h263_decoder"
1367 wmv1_encoder_select="h263_encoder"
1368 wmv2_decoder_select="h263_decoder"
1369 wmv2_encoder_select="h263_encoder"
1370 wmv3_decoder_select="vc1_decoder"
1371 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1372 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1373 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1374 zlib_decoder_select="zlib"
1375 zlib_encoder_select="zlib"
1376 zmbv_decoder_select="zlib"
1377 zmbv_encoder_select="zlib"
1378
1379 vaapi_deps="va_va_h"
1380 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1381
1382 # parsers
1383 h264_parser_select="golomb h264dsp h264pred"
1384
1385 # external libraries
1386 libdirac_decoder_deps="libdirac !libschroedinger"
1387 libdirac_encoder_deps="libdirac"
1388 libfaac_encoder_deps="libfaac"
1389 libgsm_decoder_deps="libgsm"
1390 libgsm_encoder_deps="libgsm"
1391 libgsm_ms_decoder_deps="libgsm"
1392 libgsm_ms_encoder_deps="libgsm"
1393 libmp3lame_encoder_deps="libmp3lame"
1394 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1395 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1396 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1397 libopenjpeg_decoder_deps="libopenjpeg"
1398 libschroedinger_decoder_deps="libschroedinger"
1399 libschroedinger_encoder_deps="libschroedinger"
1400 libspeex_decoder_deps="libspeex"
1401 libtheora_encoder_deps="libtheora"
1402 libvo_aacenc_encoder_deps="libvo_aacenc"
1403 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1404 libvorbis_encoder_deps="libvorbis"
1405 libvpx_decoder_deps="libvpx"
1406 libvpx_encoder_deps="libvpx"
1407 libx264_encoder_deps="libx264"
1408 libxavs_encoder_deps="libxavs"
1409 libxvid_encoder_deps="libxvid"
1410
1411 # demuxers / muxers
1412 ac3_demuxer_select="ac3_parser"
1413 asf_stream_muxer_select="asf_muxer"
1414 avisynth_demuxer_deps="avisynth"
1415 dirac_demuxer_select="dirac_parser"
1416 eac3_demuxer_select="ac3_parser"
1417 flac_demuxer_select="flac_parser"
1418 ipod_muxer_select="mov_muxer"
1419 libnut_demuxer_deps="libnut"
1420 libnut_muxer_deps="libnut"
1421 matroska_audio_muxer_select="matroska_muxer"
1422 matroska_demuxer_suggest="zlib bzlib"
1423 mov_demuxer_suggest="zlib"
1424 mp3_demuxer_select="mpegaudio_parser"
1425 mp4_muxer_select="mov_muxer"
1426 mpegtsraw_demuxer_select="mpegts_demuxer"
1427 mxf_d10_muxer_select="mxf_muxer"
1428 ogg_demuxer_select="golomb"
1429 psp_muxer_select="mov_muxer"
1430 rtp_demuxer_select="sdp_demuxer"
1431 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1432 rtsp_demuxer_select="http_protocol rtpdec"
1433 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1434 sap_demuxer_select="sdp_demuxer"
1435 sap_muxer_select="rtp_muxer rtp_protocol"
1436 sdp_demuxer_select="rtpdec"
1437 spdif_muxer_select="aac_parser"
1438 tg2_muxer_select="mov_muxer"
1439 tgp_muxer_select="mov_muxer"
1440 w64_demuxer_deps="wav_demuxer"
1441
1442 # indevs / outdevs
1443 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1444 alsa_outdev_deps="alsa_asoundlib_h"
1445 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1446 dv1394_indev_deps="dv1394 dv_demuxer"
1447 fbdev_indev_deps="linux_fb_h"
1448 jack_indev_deps="jack_jack_h"
1449 libdc1394_indev_deps="libdc1394"
1450 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1451 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1452 sndio_indev_deps="sndio_h"
1453 sndio_outdev_deps="sndio_h"
1454 v4l_indev_deps="linux_videodev_h"
1455 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1456 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1457 vfwcap_indev_extralibs="-lavicap32"
1458 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1459 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1460
1461 # protocols
1462 gopher_protocol_deps="network"
1463 http_protocol_deps="network"
1464 http_protocol_select="tcp_protocol"
1465 mmsh_protocol_select="http_protocol"
1466 mmst_protocol_deps="network"
1467 rtmp_protocol_select="tcp_protocol"
1468 rtp_protocol_select="udp_protocol"
1469 tcp_protocol_deps="network"
1470 udp_protocol_deps="network"
1471
1472 # filters
1473 blackframe_filter_deps="gpl"
1474 cropdetect_filter_deps="gpl"
1475 drawtext_filter_deps="libfreetype"
1476 frei0r_filter_deps="frei0r dlopen strtok_r"
1477 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1478 hqdn3d_filter_deps="gpl"
1479 ocv_filter_deps="libopencv"
1480 scale_filter_deps="swscale"
1481 yadif_filter_deps="gpl"
1482
1483 # libraries
1484 avdevice_deps="avcodec avformat"
1485 avformat_deps="avcodec"
1486 postproc_deps="gpl"
1487
1488 # programs
1489 ffmpeg_deps="avcodec avformat swscale"
1490 ffmpeg_select="buffer_filter"
1491 ffplay_deps="avcodec avformat swscale sdl"
1492 ffplay_select="rdft"
1493 ffprobe_deps="avcodec avformat"
1494 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1495 ffserver_extralibs='$ldl'
1496
1497 doc_deps="texi2html"
1498
1499 # tests
1500
1501 test_deps(){
1502     suf1=$1
1503     suf2=$2
1504     shift 2
1505     for v; do
1506         dep=${v%=*}
1507         tests=${v#*=}
1508         for name in ${tests}; do
1509             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1510         done
1511     done
1512 }
1513
1514 test_deps _encoder _decoder                                             \
1515     adpcm_g726=g726                                                     \
1516     adpcm_ima_qt                                                        \
1517     adpcm_ima_wav                                                       \
1518     adpcm_ms                                                            \
1519     adpcm_swf                                                           \
1520     adpcm_yamaha=adpcm_yam                                              \
1521     alac                                                                \
1522     asv1                                                                \
1523     asv2                                                                \
1524     bmp                                                                 \
1525     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1526     dvvideo="dv dv50"                                                   \
1527     ffv1                                                                \
1528     flac                                                                \
1529     flashsv                                                             \
1530     flv                                                                 \
1531     gif                                                                 \
1532     h261                                                                \
1533     h263="h263 h263p"                                                   \
1534     huffyuv                                                             \
1535     jpegls                                                              \
1536     mjpeg="jpg mjpeg ljpeg"                                             \
1537     mp2                                                                 \
1538     mpeg1video="mpeg mpeg1b"                                            \
1539     mpeg2video="mpeg2 mpeg2thread"                                      \
1540     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1541     msmpeg4v3=msmpeg4                                                   \
1542     msmpeg4v2                                                           \
1543     pbm=pbmpipe                                                         \
1544     pcx                                                                 \
1545     pgm="pgm pgmpipe"                                                   \
1546     png                                                                 \
1547     ppm="ppm ppmpipe"                                                   \
1548     rawvideo="rgb yuv"                                                  \
1549     roq                                                                 \
1550     rv10                                                                \
1551     rv20                                                                \
1552     sgi                                                                 \
1553     snow="snow snowll"                                                  \
1554     svq1                                                                \
1555     targa=tga                                                           \
1556     tiff                                                                \
1557     wmav1                                                               \
1558     wmav2                                                               \
1559     wmv1                                                                \
1560     wmv2                                                                \
1561
1562 test_deps _muxer _demuxer                                               \
1563     aiff                                                                \
1564     pcm_alaw=alaw                                                       \
1565     asf                                                                 \
1566     au                                                                  \
1567     avi                                                                 \
1568     dv=dv_fmt                                                           \
1569     ffm                                                                 \
1570     flv=flv_fmt                                                         \
1571     gxf                                                                 \
1572     matroska=mkv                                                        \
1573     mmf                                                                 \
1574     mov                                                                 \
1575     pcm_mulaw=mulaw                                                     \
1576     mxf="mxf mxf_d10"                                                   \
1577     nut                                                                 \
1578     ogg                                                                 \
1579     rawvideo=pixfmt                                                     \
1580     rm                                                                  \
1581     swf                                                                 \
1582     mpegts=ts                                                           \
1583     voc                                                                 \
1584     wav                                                                 \
1585     yuv4mpegpipe=yuv4mpeg                                               \
1586
1587 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1588 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1589
1590 # default parameters
1591
1592 logfile="config.log"
1593
1594 # installation paths
1595 prefix_default="/usr/local"
1596 bindir_default='${prefix}/bin'
1597 datadir_default='${prefix}/share/ffmpeg'
1598 incdir_default='${prefix}/include'
1599 libdir_default='${prefix}/lib'
1600 mandir_default='${prefix}/share/man'
1601 shlibdir_default="$libdir_default"
1602
1603 # toolchain
1604 ar_default="ar"
1605 cc_default="gcc"
1606 cc_version=\"unknown\"
1607 host_cc_default="gcc"
1608 ln_s="ln -sf"
1609 nm_default="nm"
1610 objformat="elf"
1611 pkg_config_default=pkg-config
1612 ranlib="ranlib"
1613 yasmexe="yasm"
1614 nogas=":"
1615
1616 nm_opts='-g'
1617
1618 # machine
1619 arch_default=$(uname -m)
1620 cpu="generic"
1621
1622 # OS
1623 target_os_default=$(tolower $(uname -s))
1624 host_os=$target_os_default
1625
1626 # configurable options
1627 enable avcodec
1628 enable avdevice
1629 enable avfilter
1630 enable avformat
1631 enable avutil
1632 enable asm
1633 enable debug
1634 enable doc
1635 enable fastdiv
1636 enable ffmpeg
1637 enable ffplay
1638 enable ffprobe
1639 enable ffserver
1640 enable network
1641 enable optimizations
1642 enable postproc
1643 enable protocols
1644 enable static
1645 enable swscale
1646 enable swscale_alpha
1647
1648 # build settings
1649 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1650 FFSERVERLDFLAGS=-Wl,-E
1651 LIBPREF="lib"
1652 LIBSUF=".a"
1653 FULLNAME='$(NAME)$(BUILDSUF)'
1654 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1655 SLIBPREF="lib"
1656 SLIBSUF=".so"
1657 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1658 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1659 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1660 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1661 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1662 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1663
1664 AS_O='-o $@'
1665 CC_O='-o $@'
1666
1667 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1668 host_libs='-lm'
1669
1670 target_path='$(CURDIR)'
1671
1672 # since the object filename is not given with the -MM flag, the compiler
1673 # is only able to print the basename, and we must add the path ourselves
1674 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1675 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1676
1677 # find source path
1678 if test -f configure; then
1679     source_path=.
1680 else
1681     source_path=$(cd $(dirname "$0"); pwd)
1682     echo "$source_path" | grep -q '[[:blank:]]' &&
1683         die "Out of tree builds are impossible with whitespace in source path."
1684     test -e "$source_path/config.h" &&
1685         die "Out of tree builds are impossible with config.h in source dir."
1686 fi
1687
1688 for v in "$@"; do
1689     r=${v#*=}
1690     l=${v%"$r"}
1691     r=$(sh_quote "$r")
1692     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1693 done
1694
1695 find_things(){
1696     thing=$1
1697     pattern=$2
1698     file=$source_path/$3
1699     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1700 }
1701
1702 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1703 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1704 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1705 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1706 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1707 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1708 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1709 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1710 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1711 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1712 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1713
1714 find_tests(){
1715     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1716 }
1717
1718 ACODEC_TESTS=$(find_tests acodec)
1719 VCODEC_TESTS=$(find_tests vsynth1)
1720 LAVF_TESTS=$(find_tests lavf)
1721 LAVFI_TESTS=$(find_tests lavfi)
1722 SEEK_TESTS=$(find_tests seek seek_)
1723
1724 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1725
1726 for n in $COMPONENT_LIST; do
1727     v=$(toupper ${n%s})_LIST
1728     eval enable \$$v
1729     eval ${n}_if_any="\$$v"
1730 done
1731
1732 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1733
1734 die_unknown(){
1735     echo "Unknown option \"$1\"."
1736     echo "See $0 --help for available options."
1737     exit 1
1738 }
1739
1740 show_list() {
1741     suffix=_$1
1742     shift
1743     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1744     exit 0
1745 }
1746
1747 for opt do
1748     optval="${opt#*=}"
1749     case "$opt" in
1750     --extra-ldflags=*) add_ldflags $optval
1751     ;;
1752     --extra-libs=*) add_extralibs $optval
1753     ;;
1754     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1755     ;;
1756     --enable-debug=*) debuglevel="$optval"
1757     ;;
1758     --disable-everything)
1759     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1760     ;;
1761     --enable-*=*|--disable-*=*)
1762     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1763     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1764     eval list=\$$(toupper $thing)_LIST
1765     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1766     $action $(filter "$name" $list)
1767     ;;
1768     --enable-?*|--disable-?*)
1769     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1770     if is_in $option $COMPONENT_LIST; then
1771         test $action = disable && action=unset
1772         eval $action \$$(toupper ${option%s})_LIST
1773     elif is_in $option $CMDLINE_SELECT; then
1774         $action $option
1775     else
1776         die_unknown $opt
1777     fi
1778     ;;
1779     --list-*)
1780         NAME="${opt#--list-}"
1781         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1782         NAME=${NAME%s}
1783         eval show_list $NAME \$$(toupper $NAME)_LIST
1784     ;;
1785     --help|-h) show_help
1786     ;;
1787     *)
1788     optname="${opt%%=*}"
1789     optname="${optname#--}"
1790     optname=$(echo "$optname" | sed 's/-/_/g')
1791     if is_in $optname $CMDLINE_SET; then
1792         eval $optname='$optval'
1793     elif is_in $optname $CMDLINE_APPEND; then
1794         append $optname "$optval"
1795     else
1796          die_unknown $opt
1797     fi
1798     ;;
1799     esac
1800 done
1801
1802 disabled logging && logfile=/dev/null
1803
1804 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1805 set >> $logfile
1806
1807 test -n "$cross_prefix" && enable cross_compile
1808
1809 if enabled cross_compile; then
1810     test -n "$arch" && test -n "$target_os" ||
1811         die "Must specify target arch and OS when cross-compiling"
1812 fi
1813
1814 set_default arch target_os
1815
1816 ar_default="${cross_prefix}${ar_default}"
1817 cc_default="${cross_prefix}${cc_default}"
1818 nm_default="${cross_prefix}${nm_default}"
1819 pkg_config_default="${cross_prefix}${pkg_config_default}"
1820 ranlib="${cross_prefix}${ranlib}"
1821
1822 sysinclude_default="${sysroot}/usr/include"
1823
1824 set_default cc nm pkg_config sysinclude
1825 enabled cross_compile || host_cc_default=$cc
1826 set_default host_cc
1827
1828 if ! $pkg_config --version >/dev/null 2>&1; then
1829     warn "$pkg_config not found, library detection may fail."
1830     pkg_config=false
1831 fi
1832
1833 exesuf() {
1834     case $1 in
1835         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1836     esac
1837 }
1838
1839 EXESUF=$(exesuf $target_os)
1840 HOSTEXESUF=$(exesuf $host_os)
1841
1842 # set temporary file name
1843 : ${TMPDIR:=$TEMPDIR}
1844 : ${TMPDIR:=$TMP}
1845 : ${TMPDIR:=/tmp}
1846
1847 if ! check_cmd mktemp -u XXXXXX; then
1848     # simple replacement for missing mktemp
1849     # NOT SAFE FOR GENERAL USE
1850     mktemp(){
1851         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1852     }
1853 fi
1854
1855 tmpfile(){
1856     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1857         (set -C; exec > $tmp) 2>/dev/null ||
1858         die "Unable to create temporary file in $TMPDIR."
1859     append TMPFILES $tmp
1860     eval $1=$tmp
1861 }
1862
1863 trap 'rm -f -- $TMPFILES' EXIT
1864
1865 tmpfile TMPC  .c
1866 tmpfile TMPE  $EXESUF
1867 tmpfile TMPH  .h
1868 tmpfile TMPO  .o
1869 tmpfile TMPS  .S
1870 tmpfile TMPV  .ver
1871 tmpfile TMPSH .sh
1872 tmpfile TMPASM .asm
1873
1874 unset -f mktemp
1875
1876 chmod +x $TMPE
1877
1878 # make sure we can execute files in $TMPDIR
1879 cat > $TMPSH 2>> $logfile <<EOF
1880 #! /bin/sh
1881 EOF
1882 chmod +x $TMPSH >> $logfile 2>&1
1883 if ! $TMPSH >> $logfile 2>&1; then
1884     cat <<EOF
1885 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1886 variable to another directory and make sure that it is not mounted noexec.
1887 EOF
1888     die "Sanity test failed."
1889 fi
1890
1891 filter_cflags=echo
1892 filter_cppflags=echo
1893 filter_asflags=echo
1894
1895 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1896     cc_type=llvm_gcc
1897     cc_version=__VERSION__
1898     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1899     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1900     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1901     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1902     speed_cflags='-O3'
1903     size_cflags='-Os'
1904 elif $cc -v 2>&1 | grep -qi ^gcc; then
1905     cc_type=gcc
1906     cc_version=__VERSION__
1907     gcc_version=$($cc --version | head -n1)
1908     gcc_basever=$($cc -dumpversion)
1909     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1910     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1911     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1912     if ! $cc -dumpversion | grep -q '^2\.'; then
1913         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1914         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1915     fi
1916     speed_cflags='-O3'
1917     size_cflags='-Os'
1918 elif $cc --version 2>/dev/null | grep -q Intel; then
1919     cc_type=icc
1920     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1921     cc_ident=$($cc --version | head -n1)
1922     icc_version=$($cc -dumpversion)
1923     CC_DEPFLAGS='-MMD'
1924     AS_DEPFLAGS='-MMD'
1925     speed_cflags='-O3'
1926     size_cflags='-Os'
1927     noopt_cflags='-O1'
1928 elif $cc -v 2>&1 | grep -q xlc; then
1929     cc_type=xlc
1930     cc_version="AV_STRINGIFY(__IBMC__)"
1931     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1932     speed_cflags='-O5'
1933     size_cflags='-O5 -qcompact'
1934 elif $cc -V 2>/dev/null | grep -q Compaq; then
1935     cc_type=ccc
1936     cc_version="AV_STRINGIFY(__DECC_VER)"
1937     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1938     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1939     debuglevel=3
1940     add_ldflags -Wl,-z,now # calls to libots crash without this
1941     speed_cflags='-fast'
1942     size_cflags='-O1'
1943 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1944     test -d "$sysroot" || die "No valid sysroot specified."
1945     cc_type=armcc
1946     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1947     cc_ident=$($cc --vsn | head -n1)
1948     armcc_conf="$PWD/armcc.conf"
1949     $cc --arm_linux_configure                 \
1950         --arm_linux_config_file="$armcc_conf" \
1951         --configure_sysroot="$sysroot"        \
1952         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1953         die "Error creating armcc configuration file."
1954     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1955     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1956     as_default="${cross_prefix}gcc"
1957     CC_DEPFLAGS='-MMD'
1958     AS_DEPFLAGS='-MMD'
1959     speed_cflags='-O3'
1960     size_cflags='-Os'
1961     filter_asflags="filter_out -W${armcc_opt}*"
1962 elif $cc -version 2>/dev/null | grep -q TMS470; then
1963     cc_type=tms470
1964     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1965     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1966     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1967     CC_O='-fr=$(@D)'
1968     as_default="${cross_prefix}gcc"
1969     ld_default="${cross_prefix}gcc"
1970     TMPO=$(basename $TMPC .c).o
1971     append TMPFILES $TMPO
1972     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1973     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1974     AS_DEPFLAGS='-MMD'
1975     speed_cflags='-O3 -mf=5'
1976     size_cflags='-O3 -mf=2'
1977     filter_cflags=tms470_flags
1978     tms470_flags(){
1979         for flag; do
1980             case $flag in
1981                 -march=*|-mcpu=*)
1982                     case "${flag#*=}" in
1983                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1984                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1985                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1986                         armv6*|arm11*)          echo -mv=6   ;;
1987                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1988                                                 echo -mv=5e  ;;
1989                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1990                     esac
1991                     ;;
1992                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1993                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1994                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1995                 -msoft-float)   echo --float_support=vfplib       ;;
1996                 -O[0-3]|-mf=*)  echo $flag                        ;;
1997                 -g)             echo -g -mn                       ;;
1998                 -pds=*)         echo $flag                        ;;
1999             esac
2000         done
2001     }
2002 elif $cc -v 2>&1 | grep -q clang; then
2003     cc_type=clang
2004     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2005         cc_version=__clang_version__ || cc_version=__VERSION__
2006     cc_ident=$($cc --version | head -n1)
2007     CC_DEPFLAGS='-MMD'
2008     AS_DEPFLAGS='-MMD'
2009     speed_cflags='-O3'
2010     size_cflags='-Os'
2011 elif $cc -V 2>&1 | grep -q Sun; then
2012     cc_type=suncc
2013     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2014     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2015     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2016     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2017     add_ldflags -xc99
2018     speed_cflags='-O5'
2019     size_cflags='-O5 -xspace'
2020     filter_cflags=suncc_flags
2021     suncc_flags(){
2022         for flag; do
2023             case $flag in
2024                 -march=*|-mcpu=*)
2025                     case "${flag#*=}" in
2026                         native)                   echo -xtarget=native       ;;
2027                         v9|niagara)               echo -xarch=sparc          ;;
2028                         ultrasparc)               echo -xarch=sparcvis       ;;
2029                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2030                         i586|pentium)             echo -xchip=pentium        ;;
2031                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2032                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2033                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2034                         pentium4*)          echo -xtarget=pentium4           ;;
2035                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2036                         *-sse3)             echo -xarch=sse3                 ;;
2037                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2038                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2039                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2040                         k8|opteron|athlon64|athlon-fx)
2041                                                   echo -xarch=sse2a          ;;
2042                         athlon*)                  echo -xarch=pentium_proa   ;;
2043                     esac
2044                     ;;
2045                 -std=c99)             echo -xc99              ;;
2046                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2047                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2048                 -W*,*)                echo $flag              ;;
2049                 -f*-*|-W*)                                    ;;
2050                 *)                    echo $flag              ;;
2051             esac
2052         done
2053     }
2054 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2055     cc_type=pathscale
2056     cc_version=__PATHSCALE__
2057     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2058     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2059     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2060     speed_cflags='-O2'
2061     size_cflags='-Os'
2062     filter_cflags='filter_out -Wdisabled-optimization'
2063 elif $cc -v 2>&1 | grep -q Open64; then
2064     cc_type=open64
2065     cc_version=__OPEN64__
2066     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2067     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2068     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2069     speed_cflags='-O2'
2070     size_cflags='-Os'
2071     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2072 fi
2073
2074 test -n "$cc_type" && enable $cc_type ||
2075     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2076
2077 : ${as_default:=$cc}
2078 : ${dep_cc_default:=$cc}
2079 : ${ld_default:=$cc}
2080 set_default ar as dep_cc ld
2081
2082 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2083 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2084
2085 add_cflags $extra_cflags
2086 add_asflags $extra_cflags
2087
2088 if test -n "$sysroot"; then
2089     case "$cc_type" in
2090         gcc|llvm_gcc|clang)
2091             add_cppflags --sysroot="$sysroot"
2092             add_ldflags --sysroot="$sysroot"
2093         ;;
2094         tms470)
2095             add_cppflags -I"$sysinclude"
2096             add_ldflags  --sysroot="$sysroot"
2097         ;;
2098     esac
2099 fi
2100
2101 if test "$cpu" = host; then
2102     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2103
2104     case "$cc_type" in
2105         gcc|llvm_gcc)
2106             check_native(){
2107                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2108                 sed -n "/cc1.*$1=/{
2109                             s/.*$1=\\([^ ]*\\).*/\\1/
2110                             p
2111                             q
2112                         }" $TMPE
2113             }
2114             cpu=$(check_native -march || check_native -mcpu)
2115         ;;
2116     esac
2117
2118     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2119 fi
2120
2121 # Deal with common $arch aliases
2122 case "$arch" in
2123     arm*)
2124         arch="arm"
2125     ;;
2126     mips|mipsel|IP*)
2127         arch="mips"
2128     ;;
2129     mips64*)
2130         arch="mips"
2131         subarch="mips64"
2132     ;;
2133     parisc|hppa)
2134         arch="parisc"
2135     ;;
2136     parisc64|hppa64)
2137         arch="parisc"
2138         subarch="parisc64"
2139     ;;
2140     "Power Macintosh"|ppc|powerpc)
2141         arch="ppc"
2142     ;;
2143     ppc64|powerpc64)
2144         arch="ppc"
2145         subarch="ppc64"
2146     ;;
2147     s390|s390x)
2148         arch="s390"
2149     ;;
2150     sh4|sh)
2151         arch="sh4"
2152     ;;
2153     sun4u|sparc64)
2154         arch="sparc"
2155         subarch="sparc64"
2156     ;;
2157     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2158         arch="x86"
2159     ;;
2160 esac
2161
2162 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2163 enable $arch
2164
2165 # Add processor-specific flags
2166 if test "$cpu" = generic; then
2167     : do nothing
2168 elif enabled ppc; then
2169
2170     case $(tolower $cpu) in
2171         601|ppc601|powerpc601)
2172             cpuflags="-mcpu=601"
2173             disable altivec
2174         ;;
2175         603*|ppc603*|powerpc603*)
2176             cpuflags="-mcpu=603"
2177             disable altivec
2178         ;;
2179         604*|ppc604*|powerpc604*)
2180             cpuflags="-mcpu=604"
2181             disable altivec
2182         ;;
2183         g3|75*|ppc75*|powerpc75*)
2184             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2185             disable altivec
2186         ;;
2187         g4|745*|ppc745*|powerpc745*)
2188             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2189         ;;
2190         74*|ppc74*|powerpc74*)
2191             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2192         ;;
2193         g5|970|ppc970|powerpc970|power4*)
2194             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2195         ;;
2196         cell)
2197             cpuflags="-mcpu=cell"
2198             enable ldbrx
2199         ;;
2200         e500v2)
2201             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2202             disable altivec
2203         ;;
2204         e500)
2205             cpuflags="-mcpu=8540 -mhard-float"
2206             disable altivec
2207         ;;
2208     esac
2209
2210 elif enabled x86; then
2211
2212     case $cpu in
2213         i[345]86|pentium)
2214             cpuflags="-march=$cpu"
2215             disable mmx
2216         ;;
2217         # targets that do NOT support conditional mov (cmov)
2218         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2219             cpuflags="-march=$cpu"
2220             disable cmov
2221         ;;
2222         # targets that do support conditional mov (cmov)
2223         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2224             cpuflags="-march=$cpu"
2225             enable cmov
2226             enable fast_cmov
2227         ;;
2228         # targets that do support conditional mov but on which it's slow
2229         pentium4|pentium4m|prescott|nocona)
2230             cpuflags="-march=$cpu"
2231             enable cmov
2232             disable fast_cmov
2233         ;;
2234     esac
2235
2236 elif enabled sparc; then
2237
2238     case $cpu in
2239         niagara)
2240             cpuflags="-mcpu=$cpu"
2241             disable vis
2242         ;;
2243         sparc64)
2244             cpuflags="-mcpu=v9"
2245         ;;
2246     esac
2247
2248 elif enabled arm; then
2249
2250     case $cpu in
2251         armv*)
2252             cpuflags="-march=$cpu"
2253             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2254         ;;
2255         *)
2256             cpuflags="-mcpu=$cpu"
2257             case $cpu in
2258                 cortex-a*)                               subarch=armv7a  ;;
2259                 cortex-r*)                               subarch=armv7r  ;;
2260                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2261                 arm11*)                                  subarch=armv6   ;;
2262                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2263                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2264             esac
2265         ;;
2266     esac
2267
2268 elif enabled alpha; then
2269
2270     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2271
2272 elif enabled bfin; then
2273
2274     cpuflags="-mcpu=$cpu"
2275
2276 elif enabled mips; then
2277
2278     cpuflags="-march=$cpu"
2279
2280 elif enabled avr32; then
2281
2282     case $cpu in
2283         ap7[02]0[0-2])
2284             subarch="avr32_ap"
2285             cpuflags="-mpart=$cpu"
2286         ;;
2287         ap)
2288             subarch="avr32_ap"
2289             cpuflags="-march=$cpu"
2290         ;;
2291         uc3[ab]*)
2292             subarch="avr32_uc"
2293             cpuflags="-mcpu=$cpu"
2294         ;;
2295         uc)
2296             subarch="avr32_uc"
2297             cpuflags="-march=$cpu"
2298         ;;
2299     esac
2300
2301 fi
2302
2303 add_cflags $cpuflags
2304 add_asflags $cpuflags
2305
2306 # compiler sanity check
2307 check_exec <<EOF
2308 int main(void){ return 0; }
2309 EOF
2310 if test "$?" != 0; then
2311     echo "$cc is unable to create an executable file."
2312     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2313         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2314         echo "Only do this if you know what cross compiling means."
2315     fi
2316     die "C compiler test failed."
2317 fi
2318
2319 add_cppflags -D_ISOC99_SOURCE
2320 check_cflags -std=c99
2321 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2322 #include <stdlib.h>
2323 EOF
2324 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2325 #include <stdlib.h>
2326 EOF
2327
2328 check_host_cflags -std=c99
2329 check_host_cflags -Wall
2330
2331 case "$arch" in
2332     alpha|ia64|mips|parisc|sparc)
2333         spic=$shared
2334     ;;
2335     x86)
2336         subarch="x86_32"
2337         check_cc <<EOF && subarch="x86_64"
2338         int test[(int)sizeof(char*) - 7];
2339 EOF
2340         if test "$subarch" = "x86_64"; then
2341             spic=$shared
2342         fi
2343     ;;
2344 esac
2345
2346 enable $subarch
2347 enabled spic && enable pic
2348
2349 # OS specific
2350 case $target_os in
2351     haiku)
2352         prefix_default="/boot/common"
2353         network_extralibs="-lnetwork"
2354         host_libs=
2355         ;;
2356     sunos)
2357         FFSERVERLDFLAGS=""
2358         SHFLAGS='-shared -Wl,-h,$$(@F)'
2359         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2360         network_extralibs="-lsocket -lnsl"
2361         add_cppflags -D__EXTENSIONS__
2362         nm_opts='-P -g'
2363         ;;
2364     netbsd)
2365         disable symver
2366         oss_indev_extralibs="-lossaudio"
2367         oss_outdev_extralibs="-lossaudio"
2368         ;;
2369     openbsd)
2370         enable malloc_aligned
2371         # On OpenBSD 4.5. the compiler does not use PIC unless
2372         # explicitly using -fPIC. Libav builds fine without PIC,
2373         # however the generated executable will not do anything
2374         # (simply quits with exit-code 1, no crash, no output).
2375         # Thus explicitly enable PIC here.
2376         enable pic
2377         disable symver
2378         SHFLAGS='-shared'
2379         oss_indev_extralibs="-lossaudio"
2380         oss_outdev_extralibs="-lossaudio"
2381         ;;
2382     dragonfly)
2383         enable malloc_aligned
2384         disable symver
2385         ;;
2386     freebsd)
2387         enable malloc_aligned
2388         ;;
2389     bsd/os)
2390         add_extralibs -lpoll -lgnugetopt
2391         ;;
2392     darwin)
2393         enable malloc_aligned
2394         gas="gas-preprocessor.pl $cc"
2395         enabled ppc && add_asflags -force_cpusubtype_ALL
2396         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2397         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2398         add_ldflags -Wl,-dynamic,-search_paths_first
2399         SLIBSUF=".dylib"
2400         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2401         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2402         FFSERVERLDFLAGS=-Wl,-bind_at_load
2403         objformat="macho"
2404         enabled x86_64 && objformat="macho64"
2405         enabled_any pic shared ||
2406             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2407         ;;
2408     mingw32*)
2409         if test $target_os = "mingw32ce"; then
2410             disable network
2411         else
2412             target_os=mingw32
2413         fi
2414         LIBTARGET=i386
2415         if enabled x86_64; then
2416             enable malloc_aligned
2417             LIBTARGET="i386:x86-64"
2418         elif enabled arm; then
2419             LIBTARGET=arm-wince
2420         fi
2421         shlibdir_default="$bindir_default"
2422         SLIBPREF=""
2423         SLIBSUF=".dll"
2424         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2425         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2426         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2427         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2428         SLIB_INSTALL_LINKS=
2429         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2430         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2431         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'
2432         objformat="win32"
2433         dlltool="${cross_prefix}dlltool"
2434         enable dos_paths
2435         check_cflags -fno-common
2436         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2437                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2438                 die "ERROR: MinGW runtime version must be >= 3.15."
2439         add_cppflags -U__STRICT_ANSI__
2440         ;;
2441     cygwin*)
2442         target_os=cygwin
2443         shlibdir_default="$bindir_default"
2444         SLIBPREF="cyg"
2445         SLIBSUF=".dll"
2446         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2447         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2448         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2449         objformat="win32"
2450         enable dos_paths
2451         check_cflags -fno-common
2452         add_cppflags -U__STRICT_ANSI__
2453         ;;
2454     *-dos|freedos|opendos)
2455         network_extralibs="-lsocket"
2456         objformat="coff"
2457         enable dos_paths
2458         add_cppflags -U__STRICT_ANSI__
2459         ;;
2460     linux)
2461         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2462         enable dv1394
2463         ;;
2464     irix*)
2465         target_os=irix
2466         ranlib="echo ignoring ranlib"
2467         ;;
2468     os/2*)
2469         ln_s="cp -f"
2470         objformat="aout"
2471         add_cppflags -D_GNU_SOURCE
2472         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2473         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2474         FFSERVERLDFLAGS=""
2475         LIBSUF="_s.a"
2476         SLIBPREF=""
2477         SLIBSUF=".dll"
2478         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2479         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2480         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2481           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2482           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2483           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2484           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2485           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2486         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2487           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2488         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2489         enable dos_paths
2490         ;;
2491     gnu/kfreebsd)
2492         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2493         ;;
2494     gnu)
2495         ;;
2496     qnx)
2497         add_cppflags -D_QNX_SOURCE
2498         network_extralibs="-lsocket"
2499         ;;
2500     symbian)
2501         SLIBSUF=".dll"
2502         enable dos_paths
2503         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2504         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2505         add_ldflags -Wl,--target1-abs,--no-undefined \
2506                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2507                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2508         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2509                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2510                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2511         ;;
2512     none)
2513         ;;
2514     *)
2515         die "Unknown OS '$target_os'."
2516         ;;
2517 esac
2518
2519 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2520
2521 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2522
2523 set_default $PATHS_LIST
2524
2525 # we need to build at least one lib type
2526 if ! enabled_any static shared; then
2527     cat <<EOF
2528 At least one library type must be built.
2529 Specify --enable-static to build the static libraries or --enable-shared to
2530 build the shared libraries as well. To only build the shared libraries specify
2531 --disable-static in addition to --enable-shared.
2532 EOF
2533     exit 1;
2534 fi
2535
2536 die_license_disabled() {
2537     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2538 }
2539
2540 die_license_disabled gpl libx264
2541 die_license_disabled gpl libxavs
2542 die_license_disabled gpl libxvid
2543 die_license_disabled gpl x11grab
2544
2545 die_license_disabled nonfree libfaac
2546
2547 die_license_disabled version3 libopencore_amrnb
2548 die_license_disabled version3 libopencore_amrwb
2549 die_license_disabled version3 libvo_aacenc
2550 die_license_disabled version3 libvo_amrwbenc
2551
2552 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2553
2554 disabled optimizations || check_cflags -fomit-frame-pointer
2555
2556 enable_pic() {
2557     enable pic
2558     add_cppflags -DPIC
2559     add_cflags   -fPIC
2560     add_asflags  -fPIC
2561 }
2562
2563 enabled pic && enable_pic
2564
2565 check_cc <<EOF || die "Symbol mangling check failed."
2566 int ff_extern;
2567 EOF
2568 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2569 extern_prefix=${sym%%ff_extern*}
2570
2571 check_cc <<EOF && enable inline_asm
2572 void foo(void) { __asm__ volatile ("" ::); }
2573 EOF
2574
2575 _restrict=
2576 for restrict_keyword in restrict __restrict__ __restrict; do
2577     check_cc <<EOF && _restrict=$restrict_keyword && break
2578 void foo(char * $restrict_keyword p);
2579 EOF
2580 done
2581
2582 check_cc <<EOF && enable attribute_packed
2583 struct { int x; } __attribute__((packed)) x;
2584 EOF
2585
2586 check_cc <<EOF && enable attribute_may_alias
2587 union { int x; } __attribute__((may_alias)) x;
2588 EOF
2589
2590 check_cc <<EOF || die "endian test failed"
2591 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2592 EOF
2593 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2594
2595 if enabled alpha; then
2596
2597     check_cflags -mieee
2598
2599 elif enabled arm; then
2600
2601     enabled thumb && check_cflags -mthumb || check_cflags -marm
2602     nogas=die
2603
2604     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2605         enable vfp_args
2606     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2607         case "${cross_prefix:-$cc}" in
2608             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2609             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2610 __asm__ (".eabi_attribute 28, 1");
2611 int main(void) { return 0; }
2612 EOF
2613         esac
2614         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2615     fi
2616
2617     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2618     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2619     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2620     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2621     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2622     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2623     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2624
2625     enabled_all armv6t2 shared !pic && enable_pic
2626
2627 elif enabled mips; then
2628
2629     check_asm loongson '"dmult.g $1, $2, $3"'
2630     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2631
2632 elif enabled ppc; then
2633
2634     enable local_aligned_8 local_aligned_16
2635
2636     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2637     check_asm ibm_asm   '"add 0, 0, 0"'
2638     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2639     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2640
2641     # AltiVec flags: The FSF version of GCC differs from the Apple version
2642     if enabled altivec; then
2643         nogas=warn
2644         check_cflags -maltivec -mabi=altivec &&
2645         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2646         check_cflags -faltivec
2647
2648         # check if our compiler supports Motorola AltiVec C API
2649         check_cc <<EOF || disable altivec
2650 $inc_altivec_h
2651 int main(void) {
2652     vector signed int v1, v2, v3;
2653     v1 = vec_add(v2,v3);
2654     return 0;
2655 }
2656 EOF
2657
2658         # check if our compiler supports braces for vector declarations
2659         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2660 $inc_altivec_h
2661 int main (void) { (vector int) {1}; return 0; }
2662 EOF
2663     fi
2664
2665 elif enabled sparc; then
2666
2667     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2668         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2669
2670 elif enabled x86; then
2671
2672     enable local_aligned_8 local_aligned_16
2673
2674     # check whether EBP is available on x86
2675     # As 'i' is stored on the stack, this program will crash
2676     # if the base pointer is used to access it because the
2677     # base pointer is cleared in the inline assembly code.
2678     check_exec_crash <<EOF && enable ebp_available
2679     volatile int i=0;
2680     __asm__ volatile (
2681         "xorl %%ebp, %%ebp"
2682     ::: "%ebp");
2683     return i;
2684 EOF
2685
2686     # check whether EBX is available on x86
2687     check_asm ebx_available '""::"b"(0)' &&
2688         check_asm ebx_available '"":::"%ebx"'
2689
2690     # check whether xmm clobbers are supported
2691     check_asm xmm_clobbers '"":::"%xmm0"'
2692
2693     # check whether binutils is new enough to compile SSSE3/MMX2
2694     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2695     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2696
2697     check_asm bswap '"bswap %%eax" ::: "%eax"'
2698
2699     if ! disabled_any asm mmx yasm; then
2700         if check_cmd $yasmexe --version; then
2701             enabled x86_64 && yasm_extra="-m amd64"
2702             yasm_debug="-g dwarf2"
2703         elif check_cmd nasm -v; then
2704             yasmexe=nasm
2705             yasm_debug="-g -F dwarf"
2706             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2707         fi
2708
2709         YASMFLAGS="-f $objformat $yasm_extra"
2710         enabled pic               && append YASMFLAGS "-DPIC"
2711         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2712         case "$objformat" in
2713             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2714         esac
2715
2716         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2717             die "yasm not found, use --disable-yasm for a crippled build"
2718         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2719     fi
2720
2721     case "$cpu" in
2722         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2723             disable fast_clz
2724         ;;
2725     esac
2726
2727 fi
2728
2729 if enabled asm; then
2730     as=${gas:=$as}
2731     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2732         $nogas "GNU assembler not found, install gas-preprocessor"
2733 fi
2734
2735 check_ldflags -Wl,--as-needed
2736
2737 if check_func dlopen; then
2738     ldl=
2739 elif check_func dlopen -ldl; then
2740     ldl=-ldl
2741 fi
2742
2743 if enabled network; then
2744     check_type "sys/types.h sys/socket.h" socklen_t
2745     check_type netdb.h "struct addrinfo"
2746     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2747     check_type netinet/in.h "struct sockaddr_in6"
2748     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2749     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2750     # Prefer arpa/inet.h over winsock2
2751     if check_header arpa/inet.h ; then
2752         check_func closesocket
2753     elif check_header winsock2.h ; then
2754         check_func_headers winsock2.h closesocket -lws2 && \
2755             network_extralibs="-lws2" || \
2756         { check_func_headers winsock2.h closesocket -lws2_32 && \
2757             network_extralibs="-lws2_32"; }
2758         check_type ws2tcpip.h socklen_t
2759         check_type ws2tcpip.h "struct addrinfo"
2760         check_type ws2tcpip.h "struct ipv6_mreq"
2761         check_type ws2tcpip.h "struct sockaddr_in6"
2762         check_type ws2tcpip.h "struct sockaddr_storage"
2763         check_struct winsock2.h "struct sockaddr" sa_len
2764     else
2765         disable network
2766     fi
2767 fi
2768
2769 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2770 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2771
2772 check_func  fcntl
2773 check_func  fork
2774 check_func  getaddrinfo $network_extralibs
2775 check_func  gethrtime
2776 check_func  getrusage
2777 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2778 check_func  inet_aton $network_extralibs
2779 check_func  isatty
2780 check_func  localtime_r
2781 check_func  ${malloc_prefix}memalign            && enable memalign
2782 check_func  mkstemp
2783 check_func  mmap
2784 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2785 check_func  setrlimit
2786 check_func  strerror_r
2787 check_func  strptime
2788 check_func  strtok_r
2789 check_func_headers io.h setmode
2790 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2791 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2792 check_func_headers windows.h GetProcessTimes
2793 check_func_headers windows.h MapViewOfFile
2794 check_func_headers windows.h VirtualAlloc
2795
2796 check_header dlfcn.h
2797 check_header dxva2api.h
2798 check_header malloc.h
2799 check_header poll.h
2800 check_header sys/mman.h
2801 check_header sys/resource.h
2802 check_header sys/select.h
2803 check_header vdpau/vdpau.h
2804 check_header vdpau/vdpau_x11.h
2805 check_header X11/extensions/XvMClib.h
2806
2807 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2808
2809 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2810 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2811
2812 # check for some common methods of building with pthread support
2813 # do this before the optional library checks as some of them require pthreads
2814 if ! disabled pthreads && ! enabled w32threads; then
2815     enable pthreads
2816     if check_func pthread_create; then
2817         :
2818     elif check_func pthread_create -pthread; then
2819         add_cflags -pthread
2820         add_extralibs -pthread
2821     elif check_func pthread_create -pthreads; then
2822         add_cflags -pthreads
2823         add_extralibs -pthreads
2824     elif check_func pthread_create -lpthreadGC2; then
2825         add_extralibs -lpthreadGC2
2826     elif ! check_lib pthread.h pthread_create -lpthread; then
2827         disable pthreads
2828     fi
2829 fi
2830
2831 for thread in $THREADS_LIST; do
2832     if enabled $thread; then
2833         test -n "$thread_type" &&
2834             die "ERROR: Only one thread type must be selected." ||
2835             thread_type="$thread"
2836     fi
2837 done
2838
2839 check_lib math.h sin -lm && LIBM="-lm"
2840 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2841
2842 check_mathfunc exp2
2843 check_mathfunc exp2f
2844 check_mathfunc llrint
2845 check_mathfunc llrintf
2846 check_mathfunc log2
2847 check_mathfunc log2f
2848 check_mathfunc lrint
2849 check_mathfunc lrintf
2850 check_mathfunc round
2851 check_mathfunc roundf
2852 check_mathfunc trunc
2853 check_mathfunc truncf
2854
2855 # these are off by default, so fail if requested and not available
2856 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2857 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2858 enabled libdirac   && require_pkg_config dirac                          \
2859     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2860     "dirac_decoder_init dirac_encoder_init"
2861 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2862 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2863 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2864 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2865 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2866 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2867 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2868 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2869 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2870 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2871 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2872 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2873 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2874 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2875 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2876 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2877 enabled libvpx     && {
2878     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2879                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2880     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2881                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2882 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2883                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2884                         die "ERROR: libx264 version must be >= 0.115."; }
2885 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2886 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2887 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2888
2889 # libdc1394 check
2890 if enabled libdc1394; then
2891     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2892         enable libdc1394_2; } ||
2893     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2894         enable libdc1394_1; } ||
2895     die "ERROR: No version of libdc1394 found "
2896 fi
2897
2898 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2899     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2900     enable sdl &&
2901     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2902 fi
2903
2904 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2905
2906 check_header linux/fb.h
2907 check_header linux/videodev.h
2908 check_header linux/videodev2.h
2909 check_header sys/videoio.h
2910
2911 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2912 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2913 # w32api 3.12 had it defined wrong
2914 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2915
2916 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2917 { check_header dev/bktr/ioctl_meteor.h &&
2918   check_header dev/bktr/ioctl_bt848.h; } ||
2919 { check_header machine/ioctl_meteor.h &&
2920   check_header machine/ioctl_bt848.h; } ||
2921 { check_header dev/video/meteor/ioctl_meteor.h &&
2922   check_header dev/video/bktr/ioctl_bt848.h; } ||
2923 check_header dev/ic/bt8xx.h
2924
2925 check_header sndio.h
2926 check_header sys/soundcard.h
2927 check_header soundcard.h
2928
2929 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2930
2931 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2932
2933 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2934
2935 enabled x11grab                         &&
2936 check_header X11/Xlib.h                 &&
2937 check_header X11/extensions/XShm.h      &&
2938 check_header X11/extensions/Xfixes.h    &&
2939 check_func XOpenDisplay -lX11           &&
2940 check_func XShmCreateImage -lX11 -lXext &&
2941 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2942
2943 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2944 check_cpp_condition \
2945     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2946     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2947       disable vdpau; }
2948 fi
2949
2950 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2951
2952 # add some useful compiler flags if supported
2953 check_cflags -Wdeclaration-after-statement
2954 check_cflags -Wall
2955 check_cflags -Wno-parentheses
2956 check_cflags -Wno-switch
2957 check_cflags -Wno-format-zero-length
2958 check_cflags -Wdisabled-optimization
2959 check_cflags -Wpointer-arith
2960 check_cflags -Wredundant-decls
2961 check_cflags -Wno-pointer-sign
2962 check_cflags -Wcast-qual
2963 check_cflags -Wwrite-strings
2964 check_cflags -Wtype-limits
2965 check_cflags -Wundef
2966 check_cflags -Wmissing-prototypes
2967 enabled extra_warnings && check_cflags -Winline
2968
2969 # add some linker flags
2970 check_ldflags -Wl,--warn-common
2971 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
2972 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2973
2974 echo "X{};" > $TMPV
2975 if test_ldflags -Wl,--version-script,$TMPV; then
2976     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2977     check_cc <<EOF && enable symver_asm_label
2978 void ff_foo(void) __asm__ ("av_foo@VERSION");
2979 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2980 EOF
2981     check_cc <<EOF && enable symver_gnu_asm
2982 __asm__(".symver ff_foo,av_foo@VERSION");
2983 void ff_foo(void) {}
2984 EOF
2985 fi
2986
2987 if [ -n "$optflags" ]; then
2988     add_cflags $optflags
2989 elif enabled small; then
2990     add_cflags $size_cflags
2991 elif enabled optimizations; then
2992     add_cflags $speed_cflags
2993 else
2994     add_cflags $noopt_cflags
2995 fi
2996 check_cflags -fno-math-errno
2997 check_cflags -fno-signed-zeros
2998
2999 if enabled icc; then
3000     # Just warnings, no remarks
3001     check_cflags -w1
3002     # -wd: Disable following warnings
3003     # 144, 167, 556: -Wno-pointer-sign
3004     # 1292: attribute "foo" ignored
3005     # 10006: ignoring unknown option -fno-signed-zeros
3006     # 10148: ignoring unknown option -Wno-parentheses
3007     # 10156: ignoring option '-W'; no argument required
3008     check_cflags -wd144,167,556,1292,10006,10148,10156
3009     # 11030: Warning unknown option --as-needed
3010     # 10156: ignoring option '-export'; no argument required
3011     check_ldflags -wd10156,11030
3012     # Allow to compile with optimizations
3013     check_ldflags -march=$cpu
3014     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3015     enable ebp_available
3016     if enabled x86_32; then
3017         test ${icc_version%%.*} -ge 11 && \
3018             check_cflags -falign-stack=maintain-16-byte || \
3019             disable aligned_stack
3020     fi
3021 elif enabled ccc; then
3022     # disable some annoying warnings
3023     add_cflags -msg_disable cvtu32to64
3024     add_cflags -msg_disable embedcomment
3025     add_cflags -msg_disable needconstext
3026     add_cflags -msg_disable nomainieee
3027     add_cflags -msg_disable ptrmismatch1
3028     add_cflags -msg_disable unreachcode
3029 elif enabled gcc; then
3030     check_cflags -fno-tree-vectorize
3031     check_cflags -Werror=implicit-function-declaration
3032     check_cflags -Werror=missing-prototypes
3033 elif enabled llvm_gcc; then
3034     check_cflags -mllvm -stack-alignment=16
3035 elif enabled clang; then
3036     check_cflags -mllvm -stack-alignment=16
3037     check_cflags -Qunused-arguments
3038 elif enabled armcc; then
3039     # 2523: use of inline assembler is deprecated
3040     add_cflags -W${armcc_opt},--diag_suppress=2523
3041     add_cflags -W${armcc_opt},--diag_suppress=1207
3042     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3043     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3044     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3045     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3046 elif enabled tms470; then
3047     add_cflags -pds=824 -pds=837
3048 elif enabled pathscale; then
3049     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3050 fi
3051
3052 enabled_any $THREADS_LIST      && enable threads
3053
3054 check_deps $CONFIG_LIST       \
3055            $CONFIG_EXTRA      \
3056            $HAVE_LIST         \
3057            $DECODER_LIST      \
3058            $ENCODER_LIST      \
3059            $HWACCEL_LIST      \
3060            $PARSER_LIST       \
3061            $BSF_LIST          \
3062            $DEMUXER_LIST      \
3063            $MUXER_LIST        \
3064            $FILTER_LIST       \
3065            $INDEV_LIST        \
3066            $OUTDEV_LIST       \
3067            $PROTOCOL_LIST     \
3068            $ACODEC_TESTS      \
3069            $VCODEC_TESTS      \
3070            $LAVF_TESTS        \
3071            $LAVFI_TESTS       \
3072            $SEEK_TESTS        \
3073
3074 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3075
3076 ! enabled_any memalign posix_memalign malloc_aligned &&
3077     enabled_any $need_memalign && enable memalign_hack
3078
3079 echo "install prefix            $prefix"
3080 echo "source path               $source_path"
3081 echo "C compiler                $cc"
3082 echo "ARCH                      $arch ($cpu)"
3083 if test "$build_suffix" != ""; then
3084     echo "build suffix              $build_suffix"
3085 fi
3086 if test "$extra_version" != ""; then
3087     echo "version string suffix     $extra_version"
3088 fi
3089 echo "big-endian                ${bigendian-no}"
3090 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3091 if enabled x86; then
3092     echo "${yasmexe}                      ${yasm-no}"
3093     echo "MMX enabled               ${mmx-no}"
3094     echo "MMX2 enabled              ${mmx2-no}"
3095     echo "3DNow! enabled            ${amd3dnow-no}"
3096     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3097     echo "SSE enabled               ${sse-no}"
3098     echo "SSSE3 enabled             ${ssse3-no}"
3099     echo "AVX enabled               ${avx-no}"
3100     echo "CMOV enabled              ${cmov-no}"
3101     echo "CMOV is fast              ${fast_cmov-no}"
3102     echo "EBX available             ${ebx_available-no}"
3103     echo "EBP available             ${ebp_available-no}"
3104 fi
3105 if enabled arm; then
3106     echo "ARMv5TE enabled           ${armv5te-no}"
3107     echo "ARMv6 enabled             ${armv6-no}"
3108     echo "ARMv6T2 enabled           ${armv6t2-no}"
3109     echo "ARM VFP enabled           ${armvfp-no}"
3110     echo "IWMMXT enabled            ${iwmmxt-no}"
3111     echo "NEON enabled              ${neon-no}"
3112 fi
3113 if enabled mips; then
3114     echo "MMI enabled               ${mmi-no}"
3115 fi
3116 if enabled ppc; then
3117     echo "AltiVec enabled           ${altivec-no}"
3118     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3119     echo "dcbzl available           ${dcbzl-no}"
3120 fi
3121 if enabled sparc; then
3122     echo "VIS enabled               ${vis-no}"
3123 fi
3124 echo "debug symbols             ${debug-no}"
3125 echo "optimize for size         ${small-no}"
3126 echo "optimizations             ${optimizations-no}"
3127 echo "static                    ${static-no}"
3128 echo "shared                    ${shared-no}"
3129 echo "postprocessing support    ${postproc-no}"
3130 echo "new filter support        ${avfilter-no}"
3131 echo "network support           ${network-no}"
3132 echo "threading support         ${thread_type-no}"
3133 echo "SDL support               ${sdl-no}"
3134 echo "Sun medialib support      ${mlib-no}"
3135 echo "libdxva2 enabled          ${dxva2-no}"
3136 echo "libva enabled             ${vaapi-no}"
3137 echo "libvdpau enabled          ${vdpau-no}"
3138 echo "AVISynth enabled          ${avisynth-no}"
3139 echo "frei0r enabled            ${frei0r-no}"
3140 echo "libdc1394 support         ${libdc1394-no}"
3141 echo "libdirac enabled          ${libdirac-no}"
3142 echo "libfaac enabled           ${libfaac-no}"
3143 echo "libgsm enabled            ${libgsm-no}"
3144 echo "libmp3lame enabled        ${libmp3lame-no}"
3145 echo "libnut enabled            ${libnut-no}"
3146 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3147 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3148 echo "libopencv support         ${libopencv-no}"
3149 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3150 echo "librtmp enabled           ${librtmp-no}"
3151 echo "libschroedinger enabled   ${libschroedinger-no}"
3152 echo "libspeex enabled          ${libspeex-no}"
3153 echo "libtheora enabled         ${libtheora-no}"
3154 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3155 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3156 echo "libvorbis enabled         ${libvorbis-no}"
3157 echo "libvpx enabled            ${libvpx-no}"
3158 echo "libx264 enabled           ${libx264-no}"
3159 echo "libxavs enabled           ${libxavs-no}"
3160 echo "libxvid enabled           ${libxvid-no}"
3161 echo "zlib enabled              ${zlib-no}"
3162 echo "bzlib enabled             ${bzlib-no}"
3163 echo
3164
3165 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3166     echo "Enabled ${type}s:"
3167     eval list=\$$(toupper $type)_LIST
3168     print_enabled '_*' $list | sort | pr -r -3 -t
3169     echo
3170 done
3171
3172 license="LGPL version 2.1 or later"
3173 if enabled nonfree; then
3174     license="nonfree and unredistributable"
3175 elif enabled gplv3; then
3176     license="GPL version 3 or later"
3177 elif enabled lgplv3; then
3178     license="LGPL version 3 or later"
3179 elif enabled gpl; then
3180     license="GPL version 2 or later"
3181 fi
3182
3183 echo "License: $license"
3184
3185 echo "Creating config.mak and config.h..."
3186
3187 test -e Makefile || $ln_s "$source_path/Makefile" .
3188
3189 config_files="$TMPH config.mak"
3190
3191 cat > config.mak <<EOF
3192 # Automatically generated by configure - do not modify!
3193 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3194 prefix=$prefix
3195 LIBDIR=\$(DESTDIR)$libdir
3196 SHLIBDIR=\$(DESTDIR)$shlibdir
3197 INCDIR=\$(DESTDIR)$incdir
3198 BINDIR=\$(DESTDIR)$bindir
3199 DATADIR=\$(DESTDIR)$datadir
3200 MANDIR=\$(DESTDIR)$mandir
3201 SRC_PATH=$source_path
3202 CC_IDENT=$cc_ident
3203 ARCH=$arch
3204 CC=$cc
3205 AS=$as
3206 LD=$ld
3207 DEPCC=$dep_cc
3208 YASM=$yasmexe
3209 YASMDEP=$yasmexe
3210 AR=$ar
3211 RANLIB=$ranlib
3212 LN_S=$ln_s
3213 CPPFLAGS=$CPPFLAGS
3214 CFLAGS=$CFLAGS
3215 ASFLAGS=$ASFLAGS
3216 AS_O=$CC_O
3217 CC_O=$CC_O
3218 DLLTOOL=$dlltool
3219 LDFLAGS=$LDFLAGS
3220 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3221 SHFLAGS=$SHFLAGS
3222 YASMFLAGS=$YASMFLAGS
3223 BUILDSUF=$build_suffix
3224 FULLNAME=$FULLNAME
3225 LIBPREF=$LIBPREF
3226 LIBSUF=$LIBSUF
3227 LIBNAME=$LIBNAME
3228 SLIBPREF=$SLIBPREF
3229 SLIBSUF=$SLIBSUF
3230 EXESUF=$EXESUF
3231 EXTRA_VERSION=$extra_version
3232 DEPFLAGS=$DEPFLAGS
3233 CCDEP=$CCDEP
3234 ASDEP=$ASDEP
3235 CC_DEPFLAGS=$CC_DEPFLAGS
3236 AS_DEPFLAGS=$AS_DEPFLAGS
3237 HOSTCC=$host_cc
3238 HOSTCFLAGS=$host_cflags
3239 HOSTEXESUF=$HOSTEXESUF
3240 HOSTLDFLAGS=$host_ldflags
3241 HOSTLIBS=$host_libs
3242 TARGET_EXEC=$target_exec
3243 TARGET_PATH=$target_path
3244 SDL_LIBS=$sdl_libs
3245 SDL_CFLAGS=$sdl_cflags
3246 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3247 EXTRALIBS=$extralibs
3248 INSTALL=install
3249 LIBTARGET=${LIBTARGET}
3250 SLIBNAME=${SLIBNAME}
3251 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3252 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3253 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3254 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3255 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3256 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3257 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3258 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3259 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3260 EOF
3261
3262 get_version(){
3263     name=$1
3264     file=$source_path/$2
3265     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3266     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3267     lcname=$(tolower $name)
3268     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3269     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3270 }
3271
3272 get_version LIBSWSCALE  libswscale/swscale.h
3273 get_version LIBPOSTPROC libpostproc/postprocess.h
3274 get_version LIBAVCODEC  libavcodec/version.h
3275 get_version LIBAVDEVICE libavdevice/avdevice.h
3276 get_version LIBAVFORMAT libavformat/version.h
3277 get_version LIBAVUTIL   libavutil/avutil.h
3278 get_version LIBAVFILTER libavfilter/avfilter.h
3279
3280 cat > $TMPH <<EOF
3281 /* Automatically generated by configure - do not modify! */
3282 #ifndef LIBAV_CONFIG_H
3283 #define LIBAV_CONFIG_H
3284 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3285 #define LIBAV_LICENSE "$(c_escape $license)"
3286 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3287 #define CC_TYPE "$cc_type"
3288 #define CC_VERSION $cc_version
3289 #define restrict $_restrict
3290 #define EXTERN_PREFIX "${extern_prefix}"
3291 #define EXTERN_ASM ${extern_prefix}
3292 #define SLIBSUF "$SLIBSUF"
3293 EOF
3294
3295 test -n "$malloc_prefix" &&
3296     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3297
3298 if enabled small || disabled optimizations; then
3299     echo "#undef  av_always_inline"  >> $TMPH
3300     if enabled small; then
3301         echo "#define av_always_inline inline"  >> $TMPH
3302     else
3303         echo "#define av_always_inline av_unused"  >> $TMPH
3304     fi
3305 fi
3306
3307 if enabled yasm; then
3308     append config_files $TMPASM
3309     printf '' >$TMPASM
3310 fi
3311
3312 print_config ARCH_   "$config_files" $ARCH_LIST
3313 print_config HAVE_   "$config_files" $HAVE_LIST
3314 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3315                                      $CONFIG_EXTRA      \
3316                                      $DECODER_LIST      \
3317                                      $ENCODER_LIST      \
3318                                      $HWACCEL_LIST      \
3319                                      $PARSER_LIST       \
3320                                      $BSF_LIST          \
3321                                      $DEMUXER_LIST      \
3322                                      $MUXER_LIST        \
3323                                      $FILTER_LIST       \
3324                                      $PROTOCOL_LIST     \
3325                                      $INDEV_LIST        \
3326                                      $OUTDEV_LIST       \
3327
3328 cat >>config.mak <<EOF
3329 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3330 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3331 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3332 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3333 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3334 EOF
3335
3336 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3337
3338 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3339 cp_if_changed $TMPH config.h
3340 touch .config
3341
3342 enabled yasm && cp_if_changed $TMPASM config.asm
3343
3344 cat > $TMPH <<EOF
3345 /* Generated by ffconf */
3346 #ifndef AVUTIL_AVCONFIG_H
3347 #define AVUTIL_AVCONFIG_H
3348 EOF
3349
3350 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3351
3352 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3353
3354 cp_if_changed $TMPH libavutil/avconfig.h
3355
3356 test -n "$WARNINGS" && printf "\n$WARNINGS"
3357
3358 # build pkg-config files
3359
3360 pkgconfig_generate(){
3361 name=$1
3362 shortname=${name#lib}${build_suffix}
3363 comment=$2
3364 version=$3
3365 libs=$4
3366 requires=$5
3367 enabled ${name#lib} || return 0
3368 mkdir -p $name
3369 cat <<EOF > $name/$name.pc
3370 prefix=$prefix
3371 exec_prefix=\${prefix}
3372 libdir=$libdir
3373 includedir=$incdir
3374
3375 Name: $name
3376 Description: $comment
3377 Version: $version
3378 Requires: $(enabled shared || echo $requires)
3379 Requires.private: $(enabled shared && echo $requires)
3380 Conflicts:
3381 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3382 Libs.private: $(enabled shared && echo $libs)
3383 Cflags: -I\${includedir}
3384 EOF
3385 cat <<EOF > $name/$name-uninstalled.pc
3386 prefix=
3387 exec_prefix=
3388 libdir=\${pcfiledir}
3389 includedir=${source_path}
3390
3391 Name: $name
3392 Description: $comment
3393 Version: $version
3394 Requires: $requires
3395 Conflicts:
3396 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3397 Cflags: -I\${includedir}
3398 EOF
3399 }
3400
3401 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3402 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3403 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3404 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3405 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3406 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3407 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"