configure

   1 #!/bin/sh
   2 #
   3 # Libav configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-frei0r          enable frei0r video filtering
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libopencv       enable video filtering via libopencv [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libfreetype     enable libfreetype [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240   --optflags               override optimization-related compiler flags
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 879     mkdir -p "$(dirname $2)"
 880     cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvo_aacenc
 944     libvo_amrwbenc
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudiodsp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     thumb
 971     vaapi
 972     vdpau
 973     version3
 974     x11grab
 975     zlib
 976 "
 977
 978 THREADS_LIST='
 979     pthreads
 980     w32threads
 981 '
 982
 983 ARCH_LIST='
 984     alpha
 985     arm
 986     avr32
 987     avr32_ap
 988     avr32_uc
 989     bfin
 990     ia64
 991     m68k
 992     mips
 993     mips64
 994     parisc
 995     ppc
 996     ppc64
 997     s390
 998     sh4
 999     sparc
1000     sparc64
1001     tomi
1002     x86
1003     x86_32
1004     x86_64
1005 '
1006
1007 ARCH_EXT_LIST='
1008     altivec
1009     amd3dnow
1010     amd3dnowext
1011     armv5te
1012     armv6
1013     armv6t2
1014     armvfp
1015     avx
1016     iwmmxt
1017     mmi
1018     mmx
1019     mmx2
1020     neon
1021     ppc4xx
1022     sse
1023     ssse3
1024     vfpv3
1025     vis
1026 '
1027
1028 HAVE_LIST_PUB='
1029     bigendian
1030     fast_unaligned
1031 '
1032
1033 HAVE_LIST="
1034     $ARCH_EXT_LIST
1035     $HAVE_LIST_PUB
1036     $THREADS_LIST
1037     aligned_stack
1038     alsa_asoundlib_h
1039     altivec_h
1040     arpa_inet_h
1041     attribute_may_alias
1042     attribute_packed
1043     bswap
1044     closesocket
1045     cmov
1046     dcbzl
1047     dev_bktr_ioctl_bt848_h
1048     dev_bktr_ioctl_meteor_h
1049     dev_ic_bt8xx_h
1050     dev_video_meteor_ioctl_meteor_h
1051     dev_video_bktr_ioctl_bt848_h
1052     dlfcn_h
1053     dlopen
1054     dos_paths
1055     ebp_available
1056     ebx_available
1057     exp2
1058     exp2f
1059     fast_64bit
1060     fast_clz
1061     fast_cmov
1062     fcntl
1063     fork
1064     getaddrinfo
1065     gethrtime
1066     GetProcessMemoryInfo
1067     GetProcessTimes
1068     getrusage
1069     gnu_as
1070     struct_rusage_ru_maxrss
1071     ibm_asm
1072     inet_aton
1073     inline_asm
1074     isatty
1075     ldbrx
1076     libdc1394_1
1077     libdc1394_2
1078     llrint
1079     llrintf
1080     local_aligned_16
1081     local_aligned_8
1082     localtime_r
1083     log2
1084     log2f
1085     loongson
1086     lrint
1087     lrintf
1088     lzo1x_999_compress
1089     machine_ioctl_bt848_h
1090     machine_ioctl_meteor_h
1091     malloc_h
1092     MapViewOfFile
1093     memalign
1094     mkstemp
1095     mmap
1096     posix_memalign
1097     round
1098     roundf
1099     sdl
1100     sdl_video_size
1101     setmode
1102     sndio_h
1103     socklen_t
1104     soundcard_h
1105     poll_h
1106     setrlimit
1107     strerror_r
1108     strtok_r
1109     struct_addrinfo
1110     struct_ipv6_mreq
1111     struct_sockaddr_in6
1112     struct_sockaddr_sa_len
1113     struct_sockaddr_storage
1114     symver
1115     symver_gnu_asm
1116     symver_asm_label
1117     sys_mman_h
1118     sys_resource_h
1119     sys_select_h
1120     sys_soundcard_h
1121     sys_videoio_h
1122     threads
1123     trunc
1124     truncf
1125     vfp_args
1126     VirtualAlloc
1127     winsock2_h
1128     xform_asm
1129     xmm_clobbers
1130     yasm
1131 "
1132
1133 # options emitted with CONFIG_ prefix but not available on command line
1134 CONFIG_EXTRA="
1135     avutil
1136     gplv3
1137     lgplv3
1138 "
1139
1140 CMDLINE_SELECT="
1141     $ARCH_EXT_LIST
1142     $CONFIG_LIST
1143     $THREADS_LIST
1144     asm
1145     cross_compile
1146     debug
1147     extra_warnings
1148     logging
1149     optimizations
1150     symver
1151     yasm
1152 "
1153
1154 PATHS_LIST='
1155     bindir
1156     datadir
1157     incdir
1158     libdir
1159     mandir
1160     prefix
1161     shlibdir
1162 '
1163
1164 CMDLINE_SET="
1165     $PATHS_LIST
1166     ar
1167     arch
1168     as
1169     build_suffix
1170     cc
1171     cpu
1172     cross_prefix
1173     dep_cc
1174     extra_version
1175     host_cc
1176     host_cflags
1177     host_ldflags
1178     host_libs
1179     host_os
1180     ld
1181     logfile
1182     malloc_prefix
1183     nm
1184     optflags
1185     pkg_config
1186     samples
1187     sysinclude
1188     sysroot
1189     target_exec
1190     target_os
1191     target_path
1192 "
1193
1194 CMDLINE_APPEND="
1195     extra_cflags
1196 "
1197
1198 # code dependency declarations
1199
1200 # architecture extensions
1201
1202 armv5te_deps="arm"
1203 armv6_deps="arm"
1204 armv6t2_deps="arm"
1205 armvfp_deps="arm"
1206 iwmmxt_deps="arm"
1207 neon_deps="arm"
1208 vfpv3_deps="armvfp"
1209
1210 mmi_deps="mips"
1211
1212 altivec_deps="ppc"
1213 ppc4xx_deps="ppc"
1214
1215 vis_deps="sparc"
1216
1217 x86_64_suggest="cmov fast_cmov"
1218 amd3dnow_deps="mmx"
1219 amd3dnowext_deps="amd3dnow"
1220 mmx_deps="x86"
1221 mmx2_deps="mmx"
1222 sse_deps="mmx"
1223 ssse3_deps="sse"
1224 avx_deps="ssse3"
1225
1226 aligned_stack_if_any="ppc x86"
1227 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1228 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1229 fast_unaligned_if_any="armv6 ppc x86"
1230
1231 need_memalign="altivec neon sse"
1232 inline_asm_deps="!tms470"
1233
1234 symver_if_any="symver_asm_label symver_gnu_asm"
1235
1236 # subsystems
1237 dct_select="rdft"
1238 mdct_select="fft"
1239 rdft_select="fft"
1240 mpegaudiodsp_select="dct"
1241
1242 # decoders / encoders / hardware accelerators
1243 aac_decoder_select="mdct sinewin"
1244 aac_encoder_select="mdct sinewin"
1245 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1246 ac3_decoder_select="mdct ac3dsp ac3_parser"
1247 ac3_encoder_select="mdct ac3dsp"
1248 ac3_fixed_encoder_select="mdct ac3dsp"
1249 alac_encoder_select="lpc"
1250 amrnb_decoder_select="lsp"
1251 amrwb_decoder_select="lsp"
1252 atrac1_decoder_select="mdct sinewin"
1253 atrac3_decoder_select="mdct"
1254 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1255 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1256 cavs_decoder_select="golomb"
1257 cook_decoder_select="mdct sinewin"
1258 cscd_decoder_suggest="zlib"
1259 dca_decoder_select="mdct"
1260 dnxhd_encoder_select="aandct"
1261 dxa_decoder_select="zlib"
1262 eac3_decoder_select="ac3_decoder"
1263 eac3_encoder_select="mdct ac3dsp"
1264 eamad_decoder_select="aandct"
1265 eatgq_decoder_select="aandct"
1266 eatqi_decoder_select="aandct"
1267 ffv1_decoder_select="golomb"
1268 flac_decoder_select="golomb"
1269 flac_encoder_select="golomb lpc"
1270 flashsv_decoder_select="zlib"
1271 flashsv_encoder_select="zlib"
1272 flv_decoder_select="h263_decoder"
1273 flv_encoder_select="h263_encoder"
1274 fraps_decoder_select="huffman"
1275 h261_encoder_select="aandct"
1276 h263_decoder_select="h263_parser"
1277 h263_encoder_select="aandct"
1278 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1279 h263i_decoder_select="h263_decoder"
1280 h263p_encoder_select="h263_encoder"
1281 h264_decoder_select="golomb h264dsp h264pred"
1282 h264_dxva2_hwaccel_deps="dxva2api_h"
1283 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1284 h264_vaapi_hwaccel_select="vaapi"
1285 h264_vdpau_decoder_select="vdpau h264_decoder"
1286 imc_decoder_select="fft mdct sinewin"
1287 jpegls_decoder_select="golomb"
1288 jpegls_encoder_select="golomb"
1289 ljpeg_encoder_select="aandct"
1290 loco_decoder_select="golomb"
1291 mjpeg_encoder_select="aandct"
1292 mlp_decoder_select="mlp_parser"
1293 mp1_decoder_select="mpegaudiodsp"
1294 mp2_decoder_select="mpegaudiodsp"
1295 mp3adu_decoder_select="mpegaudiodsp"
1296 mp3_decoder_select="mpegaudiodsp"
1297 mp3on4_decoder_select="mpegaudiodsp"
1298 mp1float_decoder_select="mpegaudiodsp"
1299 mp2float_decoder_select="mpegaudiodsp"
1300 mp3adufloat_decoder_select="mpegaudiodsp"
1301 mp3float_decoder_select="mpegaudiodsp"
1302 mp3on4float_decoder_select="mpegaudiodsp"
1303 mpeg1video_encoder_select="aandct"
1304 mpeg2video_encoder_select="aandct"
1305 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1306 mpeg4_encoder_select="h263_encoder"
1307 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1308 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1309 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1310 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1311 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1312 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1313 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1314 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1315 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1316 msmpeg4v1_decoder_select="h263_decoder"
1317 msmpeg4v1_encoder_select="h263_encoder"
1318 msmpeg4v2_decoder_select="h263_decoder"
1319 msmpeg4v2_encoder_select="h263_encoder"
1320 msmpeg4v3_decoder_select="h263_decoder"
1321 msmpeg4v3_encoder_select="h263_encoder"
1322 nellymoser_decoder_select="mdct sinewin"
1323 nellymoser_encoder_select="mdct sinewin"
1324 png_decoder_select="zlib"
1325 png_encoder_select="zlib"
1326 qcelp_decoder_select="lsp"
1327 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1328 ra_144_encoder_select="lpc"
1329 rv10_decoder_select="h263_decoder"
1330 rv10_encoder_select="h263_encoder"
1331 rv20_decoder_select="h263_decoder"
1332 rv20_encoder_select="h263_encoder"
1333 rv30_decoder_select="golomb h264pred"
1334 rv40_decoder_select="golomb h264pred"
1335 shorten_decoder_select="golomb"
1336 sipr_decoder_select="lsp"
1337 snow_decoder_select="dwt"
1338 snow_encoder_select="aandct dwt"
1339 svq1_encoder_select="aandct"
1340 svq3_decoder_select="golomb h264dsp h264pred"
1341 svq3_decoder_suggest="zlib"
1342 theora_decoder_select="vp3_decoder"
1343 tiff_decoder_suggest="zlib"
1344 tiff_encoder_suggest="zlib"
1345 truehd_decoder_select="mlp_decoder"
1346 tscc_decoder_select="zlib"
1347 twinvq_decoder_select="mdct lsp sinewin"
1348 vc1_decoder_select="h263_decoder"
1349 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1350 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1351 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1352 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1353 vorbis_decoder_select="mdct"
1354 vorbis_encoder_select="mdct"
1355 vp6_decoder_select="huffman"
1356 vp6a_decoder_select="vp6_decoder"
1357 vp6f_decoder_select="vp6_decoder"
1358 vp8_decoder_select="h264pred"
1359 wmapro_decoder_select="mdct sinewin"
1360 wmav1_decoder_select="mdct sinewin"
1361 wmav1_encoder_select="mdct sinewin"
1362 wmav2_decoder_select="mdct sinewin"
1363 wmav2_encoder_select="mdct sinewin"
1364 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1365 wmv1_decoder_select="h263_decoder"
1366 wmv1_encoder_select="h263_encoder"
1367 wmv2_decoder_select="h263_decoder"
1368 wmv2_encoder_select="h263_encoder"
1369 wmv3_decoder_select="vc1_decoder"
1370 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1371 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1372 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1373 zlib_decoder_select="zlib"
1374 zlib_encoder_select="zlib"
1375 zmbv_decoder_select="zlib"
1376 zmbv_encoder_select="zlib"
1377
1378 vaapi_deps="va_va_h"
1379 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1380
1381 # parsers
1382 h264_parser_select="golomb h264dsp h264pred"
1383
1384 # external libraries
1385 libdirac_decoder_deps="libdirac !libschroedinger"
1386 libdirac_encoder_deps="libdirac"
1387 libfaac_encoder_deps="libfaac"
1388 libgsm_decoder_deps="libgsm"
1389 libgsm_encoder_deps="libgsm"
1390 libgsm_ms_decoder_deps="libgsm"
1391 libgsm_ms_encoder_deps="libgsm"
1392 libmp3lame_encoder_deps="libmp3lame"
1393 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1394 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1395 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1396 libopenjpeg_decoder_deps="libopenjpeg"
1397 libschroedinger_decoder_deps="libschroedinger"
1398 libschroedinger_encoder_deps="libschroedinger"
1399 libspeex_decoder_deps="libspeex"
1400 libtheora_encoder_deps="libtheora"
1401 libvo_aacenc_encoder_deps="libvo_aacenc"
1402 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1403 libvorbis_encoder_deps="libvorbis"
1404 libvpx_decoder_deps="libvpx"
1405 libvpx_encoder_deps="libvpx"
1406 libx264_encoder_deps="libx264"
1407 libxavs_encoder_deps="libxavs"
1408 libxvid_encoder_deps="libxvid"
1409
1410 # demuxers / muxers
1411 ac3_demuxer_select="ac3_parser"
1412 asf_stream_muxer_select="asf_muxer"
1413 avisynth_demuxer_deps="avisynth"
1414 dirac_demuxer_select="dirac_parser"
1415 eac3_demuxer_select="ac3_parser"
1416 flac_demuxer_select="flac_parser"
1417 ipod_muxer_select="mov_muxer"
1418 libnut_demuxer_deps="libnut"
1419 libnut_muxer_deps="libnut"
1420 matroska_audio_muxer_select="matroska_muxer"
1421 matroska_demuxer_suggest="zlib bzlib"
1422 mov_demuxer_suggest="zlib"
1423 mp3_demuxer_select="mpegaudio_parser"
1424 mp4_muxer_select="mov_muxer"
1425 mpegtsraw_demuxer_select="mpegts_demuxer"
1426 mxf_d10_muxer_select="mxf_muxer"
1427 ogg_demuxer_select="golomb"
1428 psp_muxer_select="mov_muxer"
1429 rtp_demuxer_select="sdp_demuxer"
1430 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1431 rtsp_demuxer_select="http_protocol rtpdec"
1432 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1433 sap_demuxer_select="sdp_demuxer"
1434 sap_muxer_select="rtp_muxer rtp_protocol"
1435 sdp_demuxer_select="rtpdec"
1436 spdif_muxer_select="aac_parser"
1437 tg2_muxer_select="mov_muxer"
1438 tgp_muxer_select="mov_muxer"
1439 w64_demuxer_deps="wav_demuxer"
1440
1441 # indevs / outdevs
1442 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1443 alsa_outdev_deps="alsa_asoundlib_h"
1444 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1445 dv1394_indev_deps="dv1394 dv_demuxer"
1446 fbdev_indev_deps="linux_fb_h"
1447 jack_indev_deps="jack_jack_h"
1448 libdc1394_indev_deps="libdc1394"
1449 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1450 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1451 sndio_indev_deps="sndio_h"
1452 sndio_outdev_deps="sndio_h"
1453 v4l_indev_deps="linux_videodev_h"
1454 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1455 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1456 vfwcap_indev_extralibs="-lavicap32"
1457 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1458 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1459
1460 # protocols
1461 gopher_protocol_deps="network"
1462 http_protocol_deps="network"
1463 http_protocol_select="tcp_protocol"
1464 mmsh_protocol_select="http_protocol"
1465 mmst_protocol_deps="network"
1466 rtmp_protocol_select="tcp_protocol"
1467 rtp_protocol_select="udp_protocol"
1468 tcp_protocol_deps="network"
1469 udp_protocol_deps="network"
1470
1471 # filters
1472 blackframe_filter_deps="gpl"
1473 cropdetect_filter_deps="gpl"
1474 drawtext_filter_deps="libfreetype"
1475 frei0r_filter_deps="frei0r dlopen strtok_r"
1476 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1477 hqdn3d_filter_deps="gpl"
1478 ocv_filter_deps="libopencv"
1479 scale_filter_deps="swscale"
1480 yadif_filter_deps="gpl"
1481
1482 # libraries
1483 avdevice_deps="avcodec avformat"
1484 avformat_deps="avcodec"
1485 postproc_deps="gpl"
1486
1487 # programs
1488 ffmpeg_deps="avcodec avformat swscale"
1489 ffmpeg_select="buffer_filter"
1490 ffplay_deps="avcodec avformat swscale sdl"
1491 ffplay_select="rdft"
1492 ffprobe_deps="avcodec avformat"
1493 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1494 ffserver_extralibs='$ldl'
1495
1496 doc_deps="texi2html"
1497
1498 # tests
1499
1500 test_deps(){
1501     suf1=$1
1502     suf2=$2
1503     shift 2
1504     for v; do
1505         dep=${v%=*}
1506         tests=${v#*=}
1507         for name in ${tests}; do
1508             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1509         done
1510     done
1511 }
1512
1513 test_deps _encoder _decoder                                             \
1514     adpcm_g726=g726                                                     \
1515     adpcm_ima_qt                                                        \
1516     adpcm_ima_wav                                                       \
1517     adpcm_ms                                                            \
1518     adpcm_swf                                                           \
1519     adpcm_yamaha=adpcm_yam                                              \
1520     alac                                                                \
1521     asv1                                                                \
1522     asv2                                                                \
1523     bmp                                                                 \
1524     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1525     dvvideo="dv dv50"                                                   \
1526     ffv1                                                                \
1527     flac                                                                \
1528     flashsv                                                             \
1529     flv                                                                 \
1530     gif                                                                 \
1531     h261                                                                \
1532     h263="h263 h263p"                                                   \
1533     huffyuv                                                             \
1534     jpegls                                                              \
1535     mjpeg="jpg mjpeg ljpeg"                                             \
1536     mp2                                                                 \
1537     mpeg1video="mpeg mpeg1b"                                            \
1538     mpeg2video="mpeg2 mpeg2thread"                                      \
1539     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1540     msmpeg4v3=msmpeg4                                                   \
1541     msmpeg4v2                                                           \
1542     pbm=pbmpipe                                                         \
1543     pcx                                                                 \
1544     pgm="pgm pgmpipe"                                                   \
1545     png                                                                 \
1546     ppm="ppm ppmpipe"                                                   \
1547     rawvideo="rgb yuv"                                                  \
1548     roq                                                                 \
1549     rv10                                                                \
1550     rv20                                                                \
1551     sgi                                                                 \
1552     snow="snow snowll"                                                  \
1553     svq1                                                                \
1554     targa=tga                                                           \
1555     tiff                                                                \
1556     wmav1                                                               \
1557     wmav2                                                               \
1558     wmv1                                                                \
1559     wmv2                                                                \
1560
1561 test_deps _muxer _demuxer                                               \
1562     aiff                                                                \
1563     pcm_alaw=alaw                                                       \
1564     asf                                                                 \
1565     au                                                                  \
1566     avi                                                                 \
1567     dv=dv_fmt                                                           \
1568     ffm                                                                 \
1569     flv=flv_fmt                                                         \
1570     gxf                                                                 \
1571     matroska=mkv                                                        \
1572     mmf                                                                 \
1573     mov                                                                 \
1574     pcm_mulaw=mulaw                                                     \
1575     mxf                                                                 \
1576     nut                                                                 \
1577     ogg                                                                 \
1578     rawvideo=pixfmt                                                     \
1579     rm                                                                  \
1580     swf                                                                 \
1581     mpegts=ts                                                           \
1582     voc                                                                 \
1583     wav                                                                 \
1584     yuv4mpegpipe=yuv4mpeg                                               \
1585
1586 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1587 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1588
1589 # default parameters
1590
1591 logfile="config.log"
1592
1593 # installation paths
1594 prefix_default="/usr/local"
1595 bindir_default='${prefix}/bin'
1596 datadir_default='${prefix}/share/ffmpeg'
1597 incdir_default='${prefix}/include'
1598 libdir_default='${prefix}/lib'
1599 mandir_default='${prefix}/share/man'
1600 shlibdir_default="$libdir_default"
1601
1602 # toolchain
1603 ar_default="ar"
1604 cc_default="gcc"
1605 cc_version=\"unknown\"
1606 host_cc_default="gcc"
1607 ln_s="ln -sf"
1608 nm_default="nm"
1609 objformat="elf"
1610 pkg_config_default=pkg-config
1611 ranlib="ranlib"
1612 yasmexe="yasm"
1613 nogas=":"
1614
1615 nm_opts='-g'
1616
1617 # machine
1618 arch_default=$(uname -m)
1619 cpu="generic"
1620
1621 # OS
1622 target_os_default=$(tolower $(uname -s))
1623 host_os=$target_os_default
1624
1625 # configurable options
1626 enable avcodec
1627 enable avdevice
1628 enable avfilter
1629 enable avformat
1630 enable avutil
1631 enable asm
1632 enable debug
1633 enable doc
1634 enable fastdiv
1635 enable ffmpeg
1636 enable ffplay
1637 enable ffprobe
1638 enable ffserver
1639 enable network
1640 enable optimizations
1641 enable postproc
1642 enable protocols
1643 enable static
1644 enable swscale
1645 enable swscale_alpha
1646
1647 # build settings
1648 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1649 FFSERVERLDFLAGS=-Wl,-E
1650 LIBPREF="lib"
1651 LIBSUF=".a"
1652 FULLNAME='$(NAME)$(BUILDSUF)'
1653 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1654 SLIBPREF="lib"
1655 SLIBSUF=".so"
1656 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1657 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1658 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1659 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1660 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1661 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1662
1663 AS_O='-o $@'
1664 CC_O='-o $@'
1665
1666 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1667 host_libs='-lm'
1668
1669 target_path='$(CURDIR)'
1670
1671 # since the object filename is not given with the -MM flag, the compiler
1672 # is only able to print the basename, and we must add the path ourselves
1673 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1674 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1675
1676 # find source path
1677 if test -f configure; then
1678     source_path=.
1679 else
1680     source_path=$(cd $(dirname "$0"); pwd)
1681     echo "$source_path" | grep -q '[[:blank:]]' &&
1682         die "Out of tree builds are impossible with whitespace in source path."
1683     test -e "$source_path/config.h" &&
1684         die "Out of tree builds are impossible with config.h in source dir."
1685 fi
1686
1687 for v in "$@"; do
1688     r=${v#*=}
1689     l=${v%"$r"}
1690     r=$(sh_quote "$r")
1691     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1692 done
1693
1694 find_things(){
1695     thing=$1
1696     pattern=$2
1697     file=$source_path/$3
1698     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1699 }
1700
1701 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1702 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1703 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1704 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1705 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1706 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1707 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1708 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1709 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1710 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1711 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1712
1713 find_tests(){
1714     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1715 }
1716
1717 ACODEC_TESTS=$(find_tests acodec)
1718 VCODEC_TESTS=$(find_tests vsynth1)
1719 LAVF_TESTS=$(find_tests lavf)
1720 LAVFI_TESTS=$(find_tests lavfi)
1721 SEEK_TESTS=$(find_tests seek seek_)
1722
1723 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1724
1725 for n in $COMPONENT_LIST; do
1726     v=$(toupper ${n%s})_LIST
1727     eval enable \$$v
1728     eval ${n}_if_any="\$$v"
1729 done
1730
1731 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1732
1733 die_unknown(){
1734     echo "Unknown option \"$1\"."
1735     echo "See $0 --help for available options."
1736     exit 1
1737 }
1738
1739 show_list() {
1740     suffix=_$1
1741     shift
1742     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1743     exit 0
1744 }
1745
1746 for opt do
1747     optval="${opt#*=}"
1748     case "$opt" in
1749     --extra-ldflags=*) add_ldflags $optval
1750     ;;
1751     --extra-libs=*) add_extralibs $optval
1752     ;;
1753     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1754     ;;
1755     --enable-debug=*) debuglevel="$optval"
1756     ;;
1757     --disable-everything)
1758     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1759     ;;
1760     --enable-*=*|--disable-*=*)
1761     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1762     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1763     eval list=\$$(toupper $thing)_LIST
1764     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1765     $action $(filter "$name" $list)
1766     ;;
1767     --enable-?*|--disable-?*)
1768     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1769     if is_in $option $COMPONENT_LIST; then
1770         test $action = disable && action=unset
1771         eval $action \$$(toupper ${option%s})_LIST
1772     elif is_in $option $CMDLINE_SELECT; then
1773         $action $option
1774     else
1775         die_unknown $opt
1776     fi
1777     ;;
1778     --list-*)
1779         NAME="${opt#--list-}"
1780         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1781         NAME=${NAME%s}
1782         eval show_list $NAME \$$(toupper $NAME)_LIST
1783     ;;
1784     --help|-h) show_help
1785     ;;
1786     *)
1787     optname="${opt%%=*}"
1788     optname="${optname#--}"
1789     optname=$(echo "$optname" | sed 's/-/_/g')
1790     if is_in $optname $CMDLINE_SET; then
1791         eval $optname='$optval'
1792     elif is_in $optname $CMDLINE_APPEND; then
1793         append $optname "$optval"
1794     else
1795          die_unknown $opt
1796     fi
1797     ;;
1798     esac
1799 done
1800
1801 disabled logging && logfile=/dev/null
1802
1803 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1804 set >> $logfile
1805
1806 test -n "$cross_prefix" && enable cross_compile
1807
1808 if enabled cross_compile; then
1809     test -n "$arch" && test -n "$target_os" ||
1810         die "Must specify target arch and OS when cross-compiling"
1811 fi
1812
1813 set_default arch target_os
1814
1815 ar_default="${cross_prefix}${ar_default}"
1816 cc_default="${cross_prefix}${cc_default}"
1817 nm_default="${cross_prefix}${nm_default}"
1818 pkg_config_default="${cross_prefix}${pkg_config_default}"
1819 ranlib="${cross_prefix}${ranlib}"
1820
1821 sysinclude_default="${sysroot}/usr/include"
1822
1823 set_default cc nm pkg_config sysinclude
1824 enabled cross_compile || host_cc_default=$cc
1825 set_default host_cc
1826
1827 if ! $pkg_config --version >/dev/null 2>&1; then
1828     warn "$pkg_config not found, library detection may fail."
1829     pkg_config=false
1830 fi
1831
1832 exesuf() {
1833     case $1 in
1834         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1835     esac
1836 }
1837
1838 EXESUF=$(exesuf $target_os)
1839 HOSTEXESUF=$(exesuf $host_os)
1840
1841 # set temporary file name
1842 : ${TMPDIR:=$TEMPDIR}
1843 : ${TMPDIR:=$TMP}
1844 : ${TMPDIR:=/tmp}
1845
1846 if ! check_cmd mktemp -u XXXXXX; then
1847     # simple replacement for missing mktemp
1848     # NOT SAFE FOR GENERAL USE
1849     mktemp(){
1850         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1851     }
1852 fi
1853
1854 tmpfile(){
1855     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1856         (set -C; exec > $tmp) 2>/dev/null ||
1857         die "Unable to create temporary file in $TMPDIR."
1858     append TMPFILES $tmp
1859     eval $1=$tmp
1860 }
1861
1862 trap 'rm -f -- $TMPFILES' EXIT
1863
1864 tmpfile TMPC  .c
1865 tmpfile TMPE  $EXESUF
1866 tmpfile TMPH  .h
1867 tmpfile TMPO  .o
1868 tmpfile TMPS  .S
1869 tmpfile TMPV  .ver
1870 tmpfile TMPSH .sh
1871 tmpfile TMPASM .asm
1872
1873 unset -f mktemp
1874
1875 chmod +x $TMPE
1876
1877 # make sure we can execute files in $TMPDIR
1878 cat > $TMPSH 2>> $logfile <<EOF
1879 #! /bin/sh
1880 EOF
1881 chmod +x $TMPSH >> $logfile 2>&1
1882 if ! $TMPSH >> $logfile 2>&1; then
1883     cat <<EOF
1884 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1885 variable to another directory and make sure that it is not mounted noexec.
1886 EOF
1887     die "Sanity test failed."
1888 fi
1889
1890 filter_cflags=echo
1891 filter_cppflags=echo
1892 filter_asflags=echo
1893
1894 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1895     cc_type=llvm_gcc
1896     cc_version=__VERSION__
1897     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1898     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1899     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1900     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1901     speed_cflags='-O3'
1902     size_cflags='-Os'
1903 elif $cc -v 2>&1 | grep -qi ^gcc; then
1904     cc_type=gcc
1905     cc_version=__VERSION__
1906     gcc_version=$($cc --version | head -n1)
1907     gcc_basever=$($cc -dumpversion)
1908     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1909     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1910     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1911     if ! $cc -dumpversion | grep -q '^2\.'; then
1912         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1913         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1914     fi
1915     speed_cflags='-O3'
1916     size_cflags='-Os'
1917 elif $cc --version 2>/dev/null | grep -q Intel; then
1918     cc_type=icc
1919     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1920     cc_ident=$($cc --version | head -n1)
1921     icc_version=$($cc -dumpversion)
1922     CC_DEPFLAGS='-MMD'
1923     AS_DEPFLAGS='-MMD'
1924     speed_cflags='-O3'
1925     size_cflags='-Os'
1926     noopt_cflags='-O1'
1927 elif $cc -v 2>&1 | grep -q xlc; then
1928     cc_type=xlc
1929     cc_version="AV_STRINGIFY(__IBMC__)"
1930     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1931     speed_cflags='-O5'
1932     size_cflags='-O5 -qcompact'
1933 elif $cc -V 2>/dev/null | grep -q Compaq; then
1934     cc_type=ccc
1935     cc_version="AV_STRINGIFY(__DECC_VER)"
1936     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1937     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1938     debuglevel=3
1939     add_ldflags -Wl,-z,now # calls to libots crash without this
1940     speed_cflags='-fast'
1941     size_cflags='-O1'
1942 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1943     test -d "$sysroot" || die "No valid sysroot specified."
1944     cc_type=armcc
1945     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1946     cc_ident=$($cc --vsn | head -n1)
1947     armcc_conf="$PWD/armcc.conf"
1948     $cc --arm_linux_configure                 \
1949         --arm_linux_config_file="$armcc_conf" \
1950         --configure_sysroot="$sysroot"        \
1951         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1952         die "Error creating armcc configuration file."
1953     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1954     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1955     as_default="${cross_prefix}gcc"
1956     CC_DEPFLAGS='-MMD'
1957     AS_DEPFLAGS='-MMD'
1958     speed_cflags='-O3'
1959     size_cflags='-Os'
1960     filter_asflags="filter_out -W${armcc_opt}*"
1961 elif $cc -version 2>/dev/null | grep -q TMS470; then
1962     cc_type=tms470
1963     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1964     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1965     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1966     CC_O='-fr=$(@D)'
1967     as_default="${cross_prefix}gcc"
1968     ld_default="${cross_prefix}gcc"
1969     TMPO=$(basename $TMPC .c).o
1970     append TMPFILES $TMPO
1971     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1972     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1973     AS_DEPFLAGS='-MMD'
1974     speed_cflags='-O3 -mf=5'
1975     size_cflags='-O3 -mf=2'
1976     filter_cflags=tms470_flags
1977     tms470_flags(){
1978         for flag; do
1979             case $flag in
1980                 -march=*|-mcpu=*)
1981                     case "${flag#*=}" in
1982                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1983                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1984                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1985                         armv6*|arm11*)          echo -mv=6   ;;
1986                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1987                                                 echo -mv=5e  ;;
1988                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1989                     esac
1990                     ;;
1991                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1992                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1993                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1994                 -msoft-float)   echo --float_support=vfplib       ;;
1995                 -O[0-3]|-mf=*)  echo $flag                        ;;
1996                 -g)             echo -g -mn                       ;;
1997                 -pds=*)         echo $flag                        ;;
1998             esac
1999         done
2000     }
2001 elif $cc -v 2>&1 | grep -q clang; then
2002     cc_type=clang
2003     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2004         cc_version=__clang_version__ || cc_version=__VERSION__
2005     cc_ident=$($cc --version | head -n1)
2006     CC_DEPFLAGS='-MMD'
2007     AS_DEPFLAGS='-MMD'
2008     speed_cflags='-O3'
2009     size_cflags='-Os'
2010 elif $cc -V 2>&1 | grep -q Sun; then
2011     cc_type=suncc
2012     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2013     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2014     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2015     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2016     speed_cflags='-O5'
2017     size_cflags='-O5 -xspace'
2018     filter_cflags=suncc_flags
2019     suncc_flags(){
2020         for flag; do
2021             case $flag in
2022                 -march=*|-mcpu=*)
2023                     case "${flag#*=}" in
2024                         native)                   echo -xtarget=native       ;;
2025                         v9|niagara)               echo -xarch=sparc          ;;
2026                         ultrasparc)               echo -xarch=sparcvis       ;;
2027                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2028                         i586|pentium)             echo -xchip=pentium        ;;
2029                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2030                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2031                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2032                         pentium4*)          echo -xtarget=pentium4           ;;
2033                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2034                         *-sse3)             echo -xarch=sse3                 ;;
2035                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2036                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2037                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2038                         k8|opteron|athlon64|athlon-fx)
2039                                                   echo -xarch=sse2a          ;;
2040                         athlon*)                  echo -xarch=pentium_proa   ;;
2041                     esac
2042                     ;;
2043                 -std=c99)             echo -xc99              ;;
2044                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2045                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2046                 -W*,*)                echo $flag              ;;
2047                 -f*-*|-W*)                                    ;;
2048                 *)                    echo $flag              ;;
2049             esac
2050         done
2051     }
2052 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2053     cc_type=pathscale
2054     cc_version=__PATHSCALE__
2055     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2056     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2057     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2058     speed_cflags='-O2'
2059     size_cflags='-Os'
2060     filter_cflags='filter_out -Wdisabled-optimization'
2061 elif $cc -v 2>&1 | grep -q Open64; then
2062     cc_type=open64
2063     cc_version=__OPEN64__
2064     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2065     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2066     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2067     speed_cflags='-O2'
2068     size_cflags='-Os'
2069     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2070 fi
2071
2072 test -n "$cc_type" && enable $cc_type ||
2073     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2074
2075 : ${as_default:=$cc}
2076 : ${dep_cc_default:=$cc}
2077 : ${ld_default:=$cc}
2078 set_default ar as dep_cc ld
2079
2080 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2081 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2082
2083 add_cflags $extra_cflags
2084 add_asflags $extra_cflags
2085
2086 if test -n "$sysroot"; then
2087     case "$cc_type" in
2088         gcc|llvm_gcc|clang)
2089             add_cppflags --sysroot="$sysroot"
2090             add_ldflags --sysroot="$sysroot"
2091         ;;
2092         tms470)
2093             add_cppflags -I"$sysinclude"
2094             add_ldflags  --sysroot="$sysroot"
2095         ;;
2096     esac
2097 fi
2098
2099 if test "$cpu" = host; then
2100     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2101
2102     case "$cc_type" in
2103         gcc|llvm_gcc)
2104             check_native(){
2105                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2106                 sed -n "/$1=/{
2107                             s/.*$1=\\([^ ]*\\).*/\\1/
2108                             p
2109                             q
2110                         }" $TMPE
2111             }
2112             cpu=$(check_native -march || check_native -mcpu)
2113         ;;
2114     esac
2115
2116     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2117 fi
2118
2119 # Deal with common $arch aliases
2120 case "$arch" in
2121     arm*)
2122         arch="arm"
2123     ;;
2124     mips|mipsel|IP*)
2125         arch="mips"
2126     ;;
2127     mips64*)
2128         arch="mips"
2129         subarch="mips64"
2130     ;;
2131     parisc|hppa)
2132         arch="parisc"
2133     ;;
2134     parisc64|hppa64)
2135         arch="parisc"
2136         subarch="parisc64"
2137     ;;
2138     "Power Macintosh"|ppc|powerpc)
2139         arch="ppc"
2140     ;;
2141     ppc64|powerpc64)
2142         arch="ppc"
2143         subarch="ppc64"
2144     ;;
2145     s390|s390x)
2146         arch="s390"
2147     ;;
2148     sh4|sh)
2149         arch="sh4"
2150     ;;
2151     sun4u|sparc64)
2152         arch="sparc"
2153         subarch="sparc64"
2154     ;;
2155     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2156         arch="x86"
2157     ;;
2158 esac
2159
2160 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2161 enable $arch
2162
2163 # Add processor-specific flags
2164 if test "$cpu" = generic; then
2165     : do nothing
2166 elif enabled ppc; then
2167
2168     case $(tolower $cpu) in
2169         601|ppc601|powerpc601)
2170             cpuflags="-mcpu=601"
2171             disable altivec
2172         ;;
2173         603*|ppc603*|powerpc603*)
2174             cpuflags="-mcpu=603"
2175             disable altivec
2176         ;;
2177         604*|ppc604*|powerpc604*)
2178             cpuflags="-mcpu=604"
2179             disable altivec
2180         ;;
2181         g3|75*|ppc75*|powerpc75*)
2182             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2183             disable altivec
2184         ;;
2185         g4|745*|ppc745*|powerpc745*)
2186             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2187         ;;
2188         74*|ppc74*|powerpc74*)
2189             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2190         ;;
2191         g5|970|ppc970|powerpc970|power4*)
2192             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2193         ;;
2194         cell)
2195             cpuflags="-mcpu=cell"
2196             enable ldbrx
2197         ;;
2198         e500v2)
2199             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2200             disable altivec
2201         ;;
2202         e500)
2203             cpuflags="-mcpu=8540 -mhard-float"
2204             disable altivec
2205         ;;
2206     esac
2207
2208 elif enabled x86; then
2209
2210     case $cpu in
2211         i[345]86|pentium)
2212             cpuflags="-march=$cpu"
2213             disable mmx
2214         ;;
2215         # targets that do NOT support conditional mov (cmov)
2216         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2217             cpuflags="-march=$cpu"
2218             disable cmov
2219         ;;
2220         # targets that do support conditional mov (cmov)
2221         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2222             cpuflags="-march=$cpu"
2223             enable cmov
2224             enable fast_cmov
2225         ;;
2226         # targets that do support conditional mov but on which it's slow
2227         pentium4|pentium4m|prescott|nocona)
2228             cpuflags="-march=$cpu"
2229             enable cmov
2230             disable fast_cmov
2231         ;;
2232     esac
2233
2234 elif enabled sparc; then
2235
2236     case $cpu in
2237         niagara)
2238             cpuflags="-mcpu=$cpu"
2239             disable vis
2240         ;;
2241         sparc64)
2242             cpuflags="-mcpu=v9"
2243         ;;
2244     esac
2245
2246 elif enabled arm; then
2247
2248     case $cpu in
2249         armv*)
2250             cpuflags="-march=$cpu"
2251             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2252         ;;
2253         *)
2254             cpuflags="-mcpu=$cpu"
2255             case $cpu in
2256                 cortex-a*)                               subarch=armv7a  ;;
2257                 cortex-r*)                               subarch=armv7r  ;;
2258                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2259                 arm11*)                                  subarch=armv6   ;;
2260                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2261                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2262             esac
2263         ;;
2264     esac
2265
2266 elif enabled alpha; then
2267
2268     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2269
2270 elif enabled bfin; then
2271
2272     cpuflags="-mcpu=$cpu"
2273
2274 elif enabled mips; then
2275
2276     cpuflags="-march=$cpu"
2277
2278 elif enabled avr32; then
2279
2280     case $cpu in
2281         ap7[02]0[0-2])
2282             subarch="avr32_ap"
2283             cpuflags="-mpart=$cpu"
2284         ;;
2285         ap)
2286             subarch="avr32_ap"
2287             cpuflags="-march=$cpu"
2288         ;;
2289         uc3[ab]*)
2290             subarch="avr32_uc"
2291             cpuflags="-mcpu=$cpu"
2292         ;;
2293         uc)
2294             subarch="avr32_uc"
2295             cpuflags="-march=$cpu"
2296         ;;
2297     esac
2298
2299 fi
2300
2301 add_cflags $cpuflags
2302 add_asflags $cpuflags
2303
2304 # compiler sanity check
2305 check_exec <<EOF
2306 int main(void){ return 0; }
2307 EOF
2308 if test "$?" != 0; then
2309     echo "$cc is unable to create an executable file."
2310     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2311         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2312         echo "Only do this if you know what cross compiling means."
2313     fi
2314     die "C compiler test failed."
2315 fi
2316
2317 add_cppflags -D_ISOC99_SOURCE
2318 check_cflags -std=c99
2319 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2320 #include <stdlib.h>
2321 EOF
2322 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2323 #include <stdlib.h>
2324 EOF
2325
2326 check_host_cflags -std=c99
2327 check_host_cflags -Wall
2328
2329 case "$arch" in
2330     alpha|ia64|mips|parisc|sparc)
2331         spic=$shared
2332     ;;
2333     x86)
2334         subarch="x86_32"
2335         check_cc <<EOF && subarch="x86_64"
2336         int test[(int)sizeof(char*) - 7];
2337 EOF
2338         if test "$subarch" = "x86_64"; then
2339             spic=$shared
2340         fi
2341     ;;
2342 esac
2343
2344 enable $subarch
2345 enabled spic && enable pic
2346
2347 # OS specific
2348 case $target_os in
2349     haiku)
2350         prefix_default="/boot/common"
2351         network_extralibs="-lnetwork"
2352         host_libs=
2353         ;;
2354     sunos)
2355         FFSERVERLDFLAGS=""
2356         SHFLAGS='-shared -Wl,-h,$$(@F)'
2357         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2358         network_extralibs="-lsocket -lnsl"
2359         add_cppflags -D__EXTENSIONS__
2360         nm_opts='-P -g'
2361         ;;
2362     netbsd)
2363         disable symver
2364         oss_indev_extralibs="-lossaudio"
2365         oss_outdev_extralibs="-lossaudio"
2366         ;;
2367     openbsd)
2368         enable malloc_aligned
2369         # On OpenBSD 4.5. the compiler does not use PIC unless
2370         # explicitly using -fPIC. Libav builds fine without PIC,
2371         # however the generated executable will not do anything
2372         # (simply quits with exit-code 1, no crash, no output).
2373         # Thus explicitly enable PIC here.
2374         enable pic
2375         disable symver
2376         SHFLAGS='-shared'
2377         oss_indev_extralibs="-lossaudio"
2378         oss_outdev_extralibs="-lossaudio"
2379         ;;
2380     dragonfly)
2381         enable malloc_aligned
2382         disable symver
2383         ;;
2384     freebsd)
2385         enable malloc_aligned
2386         ;;
2387     bsd/os)
2388         add_extralibs -lpoll -lgnugetopt
2389         ;;
2390     darwin)
2391         enable malloc_aligned
2392         gas="gas-preprocessor.pl $cc"
2393         enabled ppc && add_asflags -force_cpusubtype_ALL
2394         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2395         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2396         add_ldflags -Wl,-dynamic,-search_paths_first
2397         SLIBSUF=".dylib"
2398         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2399         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2400         FFSERVERLDFLAGS=-Wl,-bind_at_load
2401         objformat="macho"
2402         enabled x86_64 && objformat="macho64"
2403         enabled_any pic shared ||
2404             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2405         ;;
2406     mingw32*)
2407         if test $target_os = "mingw32ce"; then
2408             disable network
2409         else
2410             target_os=mingw32
2411         fi
2412         LIBTARGET=i386
2413         if enabled x86_64; then
2414             enable malloc_aligned
2415             LIBTARGET="i386:x86-64"
2416         elif enabled arm; then
2417             LIBTARGET=arm-wince
2418         fi
2419         shlibdir_default="$bindir_default"
2420         SLIBPREF=""
2421         SLIBSUF=".dll"
2422         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2423         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2424         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2425         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2426         SLIB_INSTALL_LINKS=
2427         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2428         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2429         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'
2430         objformat="win32"
2431         dlltool="${cross_prefix}dlltool"
2432         enable dos_paths
2433         check_cflags -fno-common
2434         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2435                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2436                 die "ERROR: MinGW runtime version must be >= 3.15."
2437         add_cppflags -U__STRICT_ANSI__
2438         ;;
2439     cygwin*)
2440         target_os=cygwin
2441         shlibdir_default="$bindir_default"
2442         SLIBPREF="cyg"
2443         SLIBSUF=".dll"
2444         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2445         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2446         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2447         objformat="win32"
2448         enable dos_paths
2449         check_cflags -fno-common
2450         add_cppflags -U__STRICT_ANSI__
2451         ;;
2452     *-dos|freedos|opendos)
2453         network_extralibs="-lsocket"
2454         objformat="coff"
2455         enable dos_paths
2456         add_cppflags -U__STRICT_ANSI__
2457         ;;
2458     linux)
2459         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2460         enable dv1394
2461         ;;
2462     irix*)
2463         target_os=irix
2464         ranlib="echo ignoring ranlib"
2465         ;;
2466     os/2*)
2467         ln_s="cp -f"
2468         objformat="aout"
2469         add_cppflags -D_GNU_SOURCE
2470         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2471         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2472         FFSERVERLDFLAGS=""
2473         LIBSUF="_s.a"
2474         SLIBPREF=""
2475         SLIBSUF=".dll"
2476         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2477         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2478         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2479           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2480           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2481           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2482           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2483           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2484         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2485           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2486         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2487         enable dos_paths
2488         ;;
2489     gnu/kfreebsd)
2490         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2491         ;;
2492     gnu)
2493         ;;
2494     qnx)
2495         add_cppflags -D_QNX_SOURCE
2496         network_extralibs="-lsocket"
2497         ;;
2498     symbian)
2499         SLIBSUF=".dll"
2500         enable dos_paths
2501         add_cflags --include=$sysinclude/gcce/gcce.h
2502         ;;
2503     none)
2504         ;;
2505     *)
2506         die "Unknown OS '$target_os'."
2507         ;;
2508 esac
2509
2510 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2511
2512 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2513
2514 set_default $PATHS_LIST
2515
2516 # we need to build at least one lib type
2517 if ! enabled_any static shared; then
2518     cat <<EOF
2519 At least one library type must be built.
2520 Specify --enable-static to build the static libraries or --enable-shared to
2521 build the shared libraries as well. To only build the shared libraries specify
2522 --disable-static in addition to --enable-shared.
2523 EOF
2524     exit 1;
2525 fi
2526
2527 die_license_disabled() {
2528     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2529 }
2530
2531 die_license_disabled gpl libx264
2532 die_license_disabled gpl libxavs
2533 die_license_disabled gpl libxvid
2534 die_license_disabled gpl x11grab
2535
2536 die_license_disabled nonfree libfaac
2537
2538 die_license_disabled version3 libopencore_amrnb
2539 die_license_disabled version3 libopencore_amrwb
2540 die_license_disabled version3 libvo_aacenc
2541 die_license_disabled version3 libvo_amrwbenc
2542
2543 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2544
2545 disabled optimizations || check_cflags -fomit-frame-pointer
2546
2547 enable_pic() {
2548     enable pic
2549     add_cppflags -DPIC
2550     add_cflags   -fPIC
2551     add_asflags  -fPIC
2552 }
2553
2554 enabled pic && enable_pic
2555
2556 check_cc <<EOF || die "Symbol mangling check failed."
2557 int ff_extern;
2558 EOF
2559 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2560 extern_prefix=${sym%%ff_extern*}
2561
2562 check_cc <<EOF && enable inline_asm
2563 void foo(void) { __asm__ volatile ("" ::); }
2564 EOF
2565
2566 _restrict=
2567 for restrict_keyword in restrict __restrict__ __restrict; do
2568     check_cc <<EOF && _restrict=$restrict_keyword && break
2569 void foo(char * $restrict_keyword p);
2570 EOF
2571 done
2572
2573 check_cc <<EOF && enable attribute_packed
2574 struct { int x; } __attribute__((packed)) x;
2575 EOF
2576
2577 check_cc <<EOF && enable attribute_may_alias
2578 union { int x; } __attribute__((may_alias)) x;
2579 EOF
2580
2581 check_cc <<EOF || die "endian test failed"
2582 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2583 EOF
2584 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2585
2586 if enabled alpha; then
2587
2588     check_cflags -mieee
2589
2590 elif enabled arm; then
2591
2592     enabled thumb && check_cflags -mthumb || check_cflags -marm
2593     nogas=die
2594
2595     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2596         enable vfp_args
2597     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2598         case "${cross_prefix:-$cc}" in
2599             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2600             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2601 __asm__ (".eabi_attribute 28, 1");
2602 int main(void) { return 0; }
2603 EOF
2604         esac
2605         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2606     fi
2607
2608     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2609     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2610     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2611     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2612     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2613     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2614     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2615
2616     enabled_all armv6t2 shared !pic && enable_pic
2617
2618 elif enabled mips; then
2619
2620     check_asm loongson '"dmult.g $1, $2, $3"'
2621     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2622
2623 elif enabled ppc; then
2624
2625     enable local_aligned_8 local_aligned_16
2626
2627     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2628     check_asm ibm_asm   '"add 0, 0, 0"'
2629     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2630     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2631
2632     # AltiVec flags: The FSF version of GCC differs from the Apple version
2633     if enabled altivec; then
2634         nogas=warn
2635         check_cflags -maltivec -mabi=altivec &&
2636         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2637         check_cflags -faltivec
2638
2639         # check if our compiler supports Motorola AltiVec C API
2640         check_cc <<EOF || disable altivec
2641 $inc_altivec_h
2642 int main(void) {
2643     vector signed int v1, v2, v3;
2644     v1 = vec_add(v2,v3);
2645     return 0;
2646 }
2647 EOF
2648
2649         # check if our compiler supports braces for vector declarations
2650         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2651 $inc_altivec_h
2652 int main (void) { (vector int) {1}; return 0; }
2653 EOF
2654     fi
2655
2656 elif enabled sparc; then
2657
2658     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2659         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2660
2661 elif enabled x86; then
2662
2663     enable local_aligned_8 local_aligned_16
2664
2665     # check whether EBP is available on x86
2666     # As 'i' is stored on the stack, this program will crash
2667     # if the base pointer is used to access it because the
2668     # base pointer is cleared in the inline assembly code.
2669     check_exec_crash <<EOF && enable ebp_available
2670     volatile int i=0;
2671     __asm__ volatile (
2672         "xorl %%ebp, %%ebp"
2673     ::: "%ebp");
2674     return i;
2675 EOF
2676
2677     # check whether EBX is available on x86
2678     check_asm ebx_available '""::"b"(0)' &&
2679         check_asm ebx_available '"":::"%ebx"'
2680
2681     # check whether xmm clobbers are supported
2682     check_asm xmm_clobbers '"":::"%xmm0"'
2683
2684     # check whether binutils is new enough to compile SSSE3/MMX2
2685     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2686     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2687
2688     check_asm bswap '"bswap %%eax" ::: "%eax"'
2689
2690     if ! disabled_any asm mmx yasm; then
2691         if check_cmd $yasmexe --version; then
2692             enabled x86_64 && yasm_extra="-m amd64"
2693             yasm_debug="-g dwarf2"
2694         elif check_cmd nasm -v; then
2695             yasmexe=nasm
2696             yasm_debug="-g -F dwarf"
2697             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2698         fi
2699
2700         YASMFLAGS="-f $objformat $yasm_extra"
2701         enabled pic               && append YASMFLAGS "-DPIC"
2702         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2703         case "$objformat" in
2704             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2705         esac
2706
2707         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2708             die "yasm not found, use --disable-yasm for a crippled build"
2709         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2710     fi
2711
2712     case "$cpu" in
2713         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2714             disable fast_clz
2715         ;;
2716     esac
2717
2718 fi
2719
2720 if enabled asm; then
2721     as=${gas:=$as}
2722     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2723         $nogas "GNU assembler not found, install gas-preprocessor"
2724 fi
2725
2726 check_ldflags -Wl,--as-needed
2727
2728 if check_func dlopen; then
2729     ldl=
2730 elif check_func dlopen -ldl; then
2731     ldl=-ldl
2732 fi
2733
2734 if enabled network; then
2735     check_type "sys/types.h sys/socket.h" socklen_t
2736     check_type netdb.h "struct addrinfo"
2737     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2738     check_type netinet/in.h "struct sockaddr_in6"
2739     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2740     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2741     # Prefer arpa/inet.h over winsock2
2742     if check_header arpa/inet.h ; then
2743         check_func closesocket
2744     elif check_header winsock2.h ; then
2745         check_func_headers winsock2.h closesocket -lws2 && \
2746             network_extralibs="-lws2" || \
2747         { check_func_headers winsock2.h closesocket -lws2_32 && \
2748             network_extralibs="-lws2_32"; }
2749         check_type ws2tcpip.h socklen_t
2750         check_type ws2tcpip.h "struct addrinfo"
2751         check_type ws2tcpip.h "struct ipv6_mreq"
2752         check_type ws2tcpip.h "struct sockaddr_in6"
2753         check_type ws2tcpip.h "struct sockaddr_storage"
2754         check_struct winsock2.h "struct sockaddr" sa_len
2755     else
2756         disable network
2757     fi
2758 fi
2759
2760 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2761 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2762
2763 check_func  fcntl
2764 check_func  fork
2765 check_func  getaddrinfo $network_extralibs
2766 check_func  gethrtime
2767 check_func  getrusage
2768 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2769 check_func  inet_aton $network_extralibs
2770 check_func  isatty
2771 check_func  localtime_r
2772 check_func  ${malloc_prefix}memalign            && enable memalign
2773 check_func  mkstemp
2774 check_func  mmap
2775 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2776 check_func  setrlimit
2777 check_func  strerror_r
2778 check_func  strtok_r
2779 check_func_headers io.h setmode
2780 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2781 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2782 check_func_headers windows.h GetProcessTimes
2783 check_func_headers windows.h MapViewOfFile
2784 check_func_headers windows.h VirtualAlloc
2785
2786 check_header dlfcn.h
2787 check_header dxva2api.h
2788 check_header malloc.h
2789 check_header poll.h
2790 check_header sys/mman.h
2791 check_header sys/resource.h
2792 check_header sys/select.h
2793 check_header vdpau/vdpau.h
2794 check_header vdpau/vdpau_x11.h
2795 check_header X11/extensions/XvMClib.h
2796
2797 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2798
2799 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2800 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2801
2802 # check for some common methods of building with pthread support
2803 # do this before the optional library checks as some of them require pthreads
2804 if ! disabled pthreads && ! enabled w32threads; then
2805     enable pthreads
2806     if check_func pthread_create; then
2807         :
2808     elif check_func pthread_create -pthread; then
2809         add_cflags -pthread
2810         add_extralibs -pthread
2811     elif check_func pthread_create -pthreads; then
2812         add_cflags -pthreads
2813         add_extralibs -pthreads
2814     elif check_func pthread_create -lpthreadGC2; then
2815         add_extralibs -lpthreadGC2
2816     elif ! check_lib pthread.h pthread_create -lpthread; then
2817         disable pthreads
2818     fi
2819 fi
2820
2821 for thread in $THREADS_LIST; do
2822     if enabled $thread; then
2823         test -n "$thread_type" &&
2824             die "ERROR: Only one thread type must be selected." ||
2825             thread_type="$thread"
2826     fi
2827 done
2828
2829 check_lib math.h sin -lm && LIBM="-lm"
2830 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2831
2832 check_mathfunc exp2
2833 check_mathfunc exp2f
2834 check_mathfunc llrint
2835 check_mathfunc llrintf
2836 check_mathfunc log2
2837 check_mathfunc log2f
2838 check_mathfunc lrint
2839 check_mathfunc lrintf
2840 check_mathfunc round
2841 check_mathfunc roundf
2842 check_mathfunc trunc
2843 check_mathfunc truncf
2844
2845 # these are off by default, so fail if requested and not available
2846 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2847 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2848 enabled libdirac   && require_pkg_config dirac                          \
2849     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2850     "dirac_decoder_init dirac_encoder_init"
2851 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2852 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2853 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2854 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2855 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2856 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2857 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2858 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2859 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2860 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2861 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2862 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2863 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2864 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2865 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2866 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2867 enabled libvpx     && {
2868     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2869                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2870     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2871                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2872 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2873                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2874                         die "ERROR: libx264 version must be >= 0.115."; }
2875 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2876 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2877 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2878
2879 # libdc1394 check
2880 if enabled libdc1394; then
2881     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2882         enable libdc1394_2; } ||
2883     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2884         enable libdc1394_1; } ||
2885     die "ERROR: No version of libdc1394 found "
2886 fi
2887
2888 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2889     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2890     enable sdl &&
2891     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2892 fi
2893
2894 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2895
2896 check_header linux/fb.h
2897 check_header linux/videodev.h
2898 check_header linux/videodev2.h
2899 check_header sys/videoio.h
2900
2901 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2902 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2903 # w32api 3.12 had it defined wrong
2904 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2905
2906 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2907 { check_header dev/bktr/ioctl_meteor.h &&
2908   check_header dev/bktr/ioctl_bt848.h; } ||
2909 { check_header machine/ioctl_meteor.h &&
2910   check_header machine/ioctl_bt848.h; } ||
2911 { check_header dev/video/meteor/ioctl_meteor.h &&
2912   check_header dev/video/bktr/ioctl_bt848.h; } ||
2913 check_header dev/ic/bt8xx.h
2914
2915 check_header sndio.h
2916 check_header sys/soundcard.h
2917 check_header soundcard.h
2918
2919 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2920
2921 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2922
2923 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2924
2925 enabled x11grab                         &&
2926 check_header X11/Xlib.h                 &&
2927 check_header X11/extensions/XShm.h      &&
2928 check_header X11/extensions/Xfixes.h    &&
2929 check_func XOpenDisplay -lX11           &&
2930 check_func XShmCreateImage -lX11 -lXext &&
2931 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2932
2933 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2934 check_cpp_condition \
2935     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2936     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2937       disable vdpau; }
2938 fi
2939
2940 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2941
2942 # add some useful compiler flags if supported
2943 check_cflags -Wdeclaration-after-statement
2944 check_cflags -Wall
2945 check_cflags -Wno-parentheses
2946 check_cflags -Wno-switch
2947 check_cflags -Wno-format-zero-length
2948 check_cflags -Wdisabled-optimization
2949 check_cflags -Wpointer-arith
2950 check_cflags -Wredundant-decls
2951 check_cflags -Wno-pointer-sign
2952 check_cflags -Wcast-qual
2953 check_cflags -Wwrite-strings
2954 check_cflags -Wtype-limits
2955 check_cflags -Wundef
2956 check_cflags -Wmissing-prototypes
2957 enabled extra_warnings && check_cflags -Winline
2958
2959 # add some linker flags
2960 check_ldflags -Wl,--warn-common
2961 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
2962 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2963
2964 echo "X{};" > $TMPV
2965 if test_ldflags -Wl,--version-script,$TMPV; then
2966     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2967     check_cc <<EOF && enable symver_asm_label
2968 void ff_foo(void) __asm__ ("av_foo@VERSION");
2969 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2970 EOF
2971     check_cc <<EOF && enable symver_gnu_asm
2972 __asm__(".symver ff_foo,av_foo@VERSION");
2973 void ff_foo(void) {}
2974 EOF
2975 fi
2976
2977 if [ -n "$optflags" ]; then
2978     add_cflags $optflags
2979 elif enabled small; then
2980     add_cflags $size_cflags
2981 elif enabled optimizations; then
2982     add_cflags $speed_cflags
2983 else
2984     add_cflags $noopt_cflags
2985 fi
2986 check_cflags -fno-math-errno
2987 check_cflags -fno-signed-zeros
2988
2989 if enabled icc; then
2990     # Just warnings, no remarks
2991     check_cflags -w1
2992     # -wd: Disable following warnings
2993     # 144, 167, 556: -Wno-pointer-sign
2994     # 1292: attribute "foo" ignored
2995     # 10006: ignoring unknown option -fno-signed-zeros
2996     # 10148: ignoring unknown option -Wno-parentheses
2997     # 10156: ignoring option '-W'; no argument required
2998     check_cflags -wd144,167,556,1292,10006,10148,10156
2999     # 11030: Warning unknown option --as-needed
3000     # 10156: ignoring option '-export'; no argument required
3001     check_ldflags -wd10156,11030
3002     # Allow to compile with optimizations
3003     check_ldflags -march=$cpu
3004     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3005     enable ebp_available
3006     if enabled x86_32; then
3007         test ${icc_version%%.*} -ge 11 && \
3008             check_cflags -falign-stack=maintain-16-byte || \
3009             disable aligned_stack
3010     fi
3011 elif enabled ccc; then
3012     # disable some annoying warnings
3013     add_cflags -msg_disable cvtu32to64
3014     add_cflags -msg_disable embedcomment
3015     add_cflags -msg_disable needconstext
3016     add_cflags -msg_disable nomainieee
3017     add_cflags -msg_disable ptrmismatch1
3018     add_cflags -msg_disable unreachcode
3019 elif enabled gcc; then
3020     check_cflags -fno-tree-vectorize
3021     check_cflags -Werror=implicit-function-declaration
3022     check_cflags -Werror=missing-prototypes
3023 elif enabled llvm_gcc; then
3024     check_cflags -mllvm -stack-alignment=16
3025 elif enabled clang; then
3026     check_cflags -mllvm -stack-alignment=16
3027     check_cflags -Qunused-arguments
3028 elif enabled armcc; then
3029     # 2523: use of inline assembler is deprecated
3030     add_cflags -W${armcc_opt},--diag_suppress=2523
3031     add_cflags -W${armcc_opt},--diag_suppress=1207
3032     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3033     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3034     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3035     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3036 elif enabled tms470; then
3037     add_cflags -pds=824 -pds=837
3038 elif enabled pathscale; then
3039     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3040 fi
3041
3042 enabled_any $THREADS_LIST      && enable threads
3043
3044 check_deps $CONFIG_LIST       \
3045            $CONFIG_EXTRA      \
3046            $HAVE_LIST         \
3047            $DECODER_LIST      \
3048            $ENCODER_LIST      \
3049            $HWACCEL_LIST      \
3050            $PARSER_LIST       \
3051            $BSF_LIST          \
3052            $DEMUXER_LIST      \
3053            $MUXER_LIST        \
3054            $FILTER_LIST       \
3055            $INDEV_LIST        \
3056            $OUTDEV_LIST       \
3057            $PROTOCOL_LIST     \
3058            $ACODEC_TESTS      \
3059            $VCODEC_TESTS      \
3060            $LAVF_TESTS        \
3061            $LAVFI_TESTS       \
3062            $SEEK_TESTS        \
3063
3064 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3065
3066 ! enabled_any memalign posix_memalign malloc_aligned &&
3067     enabled_any $need_memalign && enable memalign_hack
3068
3069 echo "install prefix            $prefix"
3070 echo "source path               $source_path"
3071 echo "C compiler                $cc"
3072 echo "ARCH                      $arch ($cpu)"
3073 if test "$build_suffix" != ""; then
3074     echo "build suffix              $build_suffix"
3075 fi
3076 if test "$extra_version" != ""; then
3077     echo "version string suffix     $extra_version"
3078 fi
3079 echo "big-endian                ${bigendian-no}"
3080 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3081 if enabled x86; then
3082     echo "${yasmexe}                      ${yasm-no}"
3083     echo "MMX enabled               ${mmx-no}"
3084     echo "MMX2 enabled              ${mmx2-no}"
3085     echo "3DNow! enabled            ${amd3dnow-no}"
3086     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3087     echo "SSE enabled               ${sse-no}"
3088     echo "SSSE3 enabled             ${ssse3-no}"
3089     echo "AVX enabled               ${avx-no}"
3090     echo "CMOV enabled              ${cmov-no}"
3091     echo "CMOV is fast              ${fast_cmov-no}"
3092     echo "EBX available             ${ebx_available-no}"
3093     echo "EBP available             ${ebp_available-no}"
3094 fi
3095 if enabled arm; then
3096     echo "ARMv5TE enabled           ${armv5te-no}"
3097     echo "ARMv6 enabled             ${armv6-no}"
3098     echo "ARMv6T2 enabled           ${armv6t2-no}"
3099     echo "ARM VFP enabled           ${armvfp-no}"
3100     echo "IWMMXT enabled            ${iwmmxt-no}"
3101     echo "NEON enabled              ${neon-no}"
3102 fi
3103 if enabled mips; then
3104     echo "MMI enabled               ${mmi-no}"
3105 fi
3106 if enabled ppc; then
3107     echo "AltiVec enabled           ${altivec-no}"
3108     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3109     echo "dcbzl available           ${dcbzl-no}"
3110 fi
3111 if enabled sparc; then
3112     echo "VIS enabled               ${vis-no}"
3113 fi
3114 echo "debug symbols             ${debug-no}"
3115 echo "optimize for size         ${small-no}"
3116 echo "optimizations             ${optimizations-no}"
3117 echo "static                    ${static-no}"
3118 echo "shared                    ${shared-no}"
3119 echo "postprocessing support    ${postproc-no}"
3120 echo "new filter support        ${avfilter-no}"
3121 echo "network support           ${network-no}"
3122 echo "threading support         ${thread_type-no}"
3123 echo "SDL support               ${sdl-no}"
3124 echo "Sun medialib support      ${mlib-no}"
3125 echo "libdxva2 enabled          ${dxva2-no}"
3126 echo "libva enabled             ${vaapi-no}"
3127 echo "libvdpau enabled          ${vdpau-no}"
3128 echo "AVISynth enabled          ${avisynth-no}"
3129 echo "frei0r enabled            ${frei0r-no}"
3130 echo "libdc1394 support         ${libdc1394-no}"
3131 echo "libdirac enabled          ${libdirac-no}"
3132 echo "libfaac enabled           ${libfaac-no}"
3133 echo "libgsm enabled            ${libgsm-no}"
3134 echo "libmp3lame enabled        ${libmp3lame-no}"
3135 echo "libnut enabled            ${libnut-no}"
3136 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3137 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3138 echo "libopencv support         ${libopencv-no}"
3139 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3140 echo "librtmp enabled           ${librtmp-no}"
3141 echo "libschroedinger enabled   ${libschroedinger-no}"
3142 echo "libspeex enabled          ${libspeex-no}"
3143 echo "libtheora enabled         ${libtheora-no}"
3144 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3145 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3146 echo "libvorbis enabled         ${libvorbis-no}"
3147 echo "libvpx enabled            ${libvpx-no}"
3148 echo "libx264 enabled           ${libx264-no}"
3149 echo "libxavs enabled           ${libxavs-no}"
3150 echo "libxvid enabled           ${libxvid-no}"
3151 echo "zlib enabled              ${zlib-no}"
3152 echo "bzlib enabled             ${bzlib-no}"
3153 echo
3154
3155 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3156     echo "Enabled ${type}s:"
3157     eval list=\$$(toupper $type)_LIST
3158     print_enabled '_*' $list | sort | pr -r -3 -t
3159     echo
3160 done
3161
3162 license="LGPL version 2.1 or later"
3163 if enabled nonfree; then
3164     license="nonfree and unredistributable"
3165 elif enabled gplv3; then
3166     license="GPL version 3 or later"
3167 elif enabled lgplv3; then
3168     license="LGPL version 3 or later"
3169 elif enabled gpl; then
3170     license="GPL version 2 or later"
3171 fi
3172
3173 echo "License: $license"
3174
3175 echo "Creating config.mak and config.h..."
3176
3177 test -e Makefile || $ln_s "$source_path/Makefile" .
3178
3179 config_files="$TMPH config.mak"
3180
3181 cat > config.mak <<EOF
3182 # Automatically generated by configure - do not modify!
3183 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3184 prefix=$prefix
3185 LIBDIR=\$(DESTDIR)$libdir
3186 SHLIBDIR=\$(DESTDIR)$shlibdir
3187 INCDIR=\$(DESTDIR)$incdir
3188 BINDIR=\$(DESTDIR)$bindir
3189 DATADIR=\$(DESTDIR)$datadir
3190 MANDIR=\$(DESTDIR)$mandir
3191 SRC_PATH=$source_path
3192 CC_IDENT=$cc_ident
3193 ARCH=$arch
3194 CC=$cc
3195 AS=$as
3196 LD=$ld
3197 DEPCC=$dep_cc
3198 YASM=$yasmexe
3199 YASMDEP=$yasmexe
3200 AR=$ar
3201 RANLIB=$ranlib
3202 LN_S=$ln_s
3203 CPPFLAGS=$CPPFLAGS
3204 CFLAGS=$CFLAGS
3205 ASFLAGS=$ASFLAGS
3206 AS_O=$CC_O
3207 CC_O=$CC_O
3208 DLLTOOL=$dlltool
3209 LDFLAGS=$LDFLAGS
3210 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3211 SHFLAGS=$SHFLAGS
3212 YASMFLAGS=$YASMFLAGS
3213 BUILDSUF=$build_suffix
3214 FULLNAME=$FULLNAME
3215 LIBPREF=$LIBPREF
3216 LIBSUF=$LIBSUF
3217 LIBNAME=$LIBNAME
3218 SLIBPREF=$SLIBPREF
3219 SLIBSUF=$SLIBSUF
3220 EXESUF=$EXESUF
3221 EXTRA_VERSION=$extra_version
3222 DEPFLAGS=$DEPFLAGS
3223 CCDEP=$CCDEP
3224 ASDEP=$ASDEP
3225 CC_DEPFLAGS=$CC_DEPFLAGS
3226 AS_DEPFLAGS=$AS_DEPFLAGS
3227 HOSTCC=$host_cc
3228 HOSTCFLAGS=$host_cflags
3229 HOSTEXESUF=$HOSTEXESUF
3230 HOSTLDFLAGS=$host_ldflags
3231 HOSTLIBS=$host_libs
3232 TARGET_EXEC=$target_exec
3233 TARGET_PATH=$target_path
3234 SDL_LIBS=$sdl_libs
3235 SDL_CFLAGS=$sdl_cflags
3236 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3237 EXTRALIBS=$extralibs
3238 INSTALL=install
3239 LIBTARGET=${LIBTARGET}
3240 SLIBNAME=${SLIBNAME}
3241 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3242 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3243 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3244 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3245 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3246 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3247 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3248 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3249 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3250 EOF
3251
3252 get_version(){
3253     name=$1
3254     file=$source_path/$2
3255     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3256     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3257     lcname=$(tolower $name)
3258     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3259     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3260 }
3261
3262 get_version LIBSWSCALE  libswscale/swscale.h
3263 get_version LIBPOSTPROC libpostproc/postprocess.h
3264 get_version LIBAVCODEC  libavcodec/version.h
3265 get_version LIBAVDEVICE libavdevice/avdevice.h
3266 get_version LIBAVFORMAT libavformat/version.h
3267 get_version LIBAVUTIL   libavutil/avutil.h
3268 get_version LIBAVFILTER libavfilter/avfilter.h
3269
3270 cat > $TMPH <<EOF
3271 /* Automatically generated by configure - do not modify! */
3272 #ifndef LIBAV_CONFIG_H
3273 #define LIBAV_CONFIG_H
3274 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3275 #define LIBAV_LICENSE "$(c_escape $license)"
3276 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3277 #define CC_TYPE "$cc_type"
3278 #define CC_VERSION $cc_version
3279 #define restrict $_restrict
3280 #define EXTERN_PREFIX "${extern_prefix}"
3281 #define EXTERN_ASM ${extern_prefix}
3282 #define SLIBSUF "$SLIBSUF"
3283 EOF
3284
3285 test -n "$malloc_prefix" &&
3286     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3287
3288 if enabled small || disabled optimizations; then
3289     echo "#undef  av_always_inline"  >> $TMPH
3290     if enabled small; then
3291         echo "#define av_always_inline inline"  >> $TMPH
3292     else
3293         echo "#define av_always_inline av_unused"  >> $TMPH
3294     fi
3295 fi
3296
3297 if enabled yasm; then
3298     append config_files $TMPASM
3299     printf '' >$TMPASM
3300 fi
3301
3302 print_config ARCH_   "$config_files" $ARCH_LIST
3303 print_config HAVE_   "$config_files" $HAVE_LIST
3304 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3305                                      $CONFIG_EXTRA      \
3306                                      $DECODER_LIST      \
3307                                      $ENCODER_LIST      \
3308                                      $HWACCEL_LIST      \
3309                                      $PARSER_LIST       \
3310                                      $BSF_LIST          \
3311                                      $DEMUXER_LIST      \
3312                                      $MUXER_LIST        \
3313                                      $FILTER_LIST       \
3314                                      $PROTOCOL_LIST     \
3315                                      $INDEV_LIST        \
3316                                      $OUTDEV_LIST       \
3317
3318 cat >>config.mak <<EOF
3319 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3320 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3321 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3322 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3323 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3324 EOF
3325
3326 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3327
3328 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3329 cp_if_changed $TMPH config.h
3330 touch .config
3331
3332 enabled yasm && cp_if_changed $TMPASM config.asm
3333
3334 cat > $TMPH <<EOF
3335 /* Generated by ffconf */
3336 #ifndef AVUTIL_AVCONFIG_H
3337 #define AVUTIL_AVCONFIG_H
3338 EOF
3339
3340 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3341
3342 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3343
3344 cp_if_changed $TMPH libavutil/avconfig.h
3345
3346 test -n "$WARNINGS" && printf "\n$WARNINGS"
3347
3348 # build pkg-config files
3349
3350 pkgconfig_generate(){
3351 name=$1
3352 shortname=${name#lib}${build_suffix}
3353 comment=$2
3354 version=$3
3355 libs=$4
3356 requires=$5
3357 enabled ${name#lib} || return 0
3358 mkdir -p $name
3359 cat <<EOF > $name/$name.pc
3360 prefix=$prefix
3361 exec_prefix=\${prefix}
3362 libdir=$libdir
3363 includedir=$incdir
3364
3365 Name: $name
3366 Description: $comment
3367 Version: $version
3368 Requires: $(enabled shared || echo $requires)
3369 Requires.private: $(enabled shared && echo $requires)
3370 Conflicts:
3371 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3372 Libs.private: $(enabled shared && echo $libs)
3373 Cflags: -I\${includedir}
3374 EOF
3375 cat <<EOF > $name/$name-uninstalled.pc
3376 prefix=
3377 exec_prefix=
3378 libdir=\${pcfiledir}
3379 includedir=${source_path}
3380
3381 Name: $name
3382 Description: $comment
3383 Version: $version
3384 Requires: $requires
3385 Conflicts:
3386 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3387 Cflags: -I\${includedir}
3388 EOF
3389 }
3390
3391 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3392 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3393 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3394 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3395 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3396 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3397 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"