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   --enable-postproc        enable GPLed postprocessing support [no]
  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   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --source-path=PATH       path to source code [$source_path]
 195   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 196   --enable-cross-compile   assume a cross-compiler is used
 197   --sysroot=PATH           root of cross-build tree
 198   --sysinclude=PATH        location of cross-build system headers
 199   --target-os=OS           compiler targets OS [$target_os]
 200   --target-exec=CMD        command to run executables on target
 201   --target-path=DIR        path to view of build directory on target
 202   --nm=NM                  use nm tool
 203   --ar=AR                  use archive tool AR [$ar_default]
 204   --as=AS                  use assembler AS [$as_default]
 205   --cc=CC                  use C compiler CC [$cc_default]
 206   --ld=LD                  use linker LD
 207   --host-cc=HOSTCC         use host C compiler HOSTCC
 208   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 209   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 210   --host-libs=HLIBS        use libs HLIBS when linking for host
 211   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 212   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 213   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 214   --extra-version=STRING   version string suffix []
 215   --build-suffix=SUFFIX    library name suffix []
 216   --arch=ARCH              select architecture [$arch]
 217   --cpu=CPU                select the minimum required CPU (affects
 218                            instruction selection, may crash on older CPUs)
 219   --disable-asm            disable all assembler optimizations
 220   --disable-altivec        disable AltiVec optimizations
 221   --disable-amd3dnow       disable 3DNow! optimizations
 222   --disable-amd3dnowext    disable 3DNow! extended optimizations
 223   --disable-mmx            disable MMX optimizations
 224   --disable-mmx2           disable MMX2 optimizations
 225   --disable-sse            disable SSE optimizations
 226   --disable-ssse3          disable SSSE3 optimizations
 227   --disable-avx            disable AVX optimizations
 228   --disable-armv5te        disable armv5te optimizations
 229   --disable-armv6          disable armv6 optimizations
 230   --disable-armv6t2        disable armv6t2 optimizations
 231   --disable-armvfp         disable ARM VFP optimizations
 232   --disable-iwmmxt         disable iwmmxt optimizations
 233   --disable-mmi            disable MMI optimizations
 234   --disable-neon           disable neon optimizations
 235   --disable-vis            disable VIS optimizations
 236   --disable-yasm           disable use of yasm assembler
 237   --enable-pic             build position-independent code
 238   --malloc-prefix=PFX      prefix malloc and related names with PFX
 239   --enable-sram            allow use of on-chip SRAM
 240   --disable-symver         disable symbol versioning
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" &&
 879         echo "$2 is unchanged" ||
 880         cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libgsm
 932     libmp3lame
 933     libnut
 934     libopencore_amrnb
 935     libopencore_amrwb
 936     libopencv
 937     libopenjpeg
 938     librtmp
 939     libschroedinger
 940     libspeex
 941     libtheora
 942     libvo_aacenc
 943     libvo_amrwbenc
 944     libvorbis
 945     libvpx
 946     libx264
 947     libxavs
 948     libxvid
 949     lpc
 950     lsp
 951     mdct
 952     memalign_hack
 953     mlib
 954     mpegaudio_hp
 955     network
 956     nonfree
 957     pic
 958     postproc
 959     rdft
 960     rtpdec
 961     runtime_cpudetect
 962     shared
 963     sinewin
 964     small
 965     sram
 966     static
 967     swscale
 968     swscale_alpha
 969     vaapi
 970     vdpau
 971     version3
 972     x11grab
 973     zlib
 974 "
 975
 976 THREADS_LIST='
 977     pthreads
 978     w32threads
 979 '
 980
 981 ARCH_LIST='
 982     alpha
 983     arm
 984     avr32
 985     avr32_ap
 986     avr32_uc
 987     bfin
 988     ia64
 989     m68k
 990     mips
 991     mips64
 992     parisc
 993     ppc
 994     ppc64
 995     s390
 996     sh4
 997     sparc
 998     sparc64
 999     tomi
1000     x86
1001     x86_32
1002     x86_64
1003 '
1004
1005 ARCH_EXT_LIST='
1006     altivec
1007     amd3dnow
1008     amd3dnowext
1009     armv5te
1010     armv6
1011     armv6t2
1012     armvfp
1013     avx
1014     iwmmxt
1015     mmi
1016     mmx
1017     mmx2
1018     neon
1019     ppc4xx
1020     sse
1021     ssse3
1022     vis
1023 '
1024
1025 HAVE_LIST_PUB='
1026     bigendian
1027     fast_unaligned
1028 '
1029
1030 HAVE_LIST="
1031     $ARCH_EXT_LIST
1032     $HAVE_LIST_PUB
1033     $THREADS_LIST
1034     aligned_stack
1035     alsa_asoundlib_h
1036     altivec_h
1037     arpa_inet_h
1038     attribute_may_alias
1039     attribute_packed
1040     bswap
1041     closesocket
1042     cmov
1043     dcbzl
1044     dev_bktr_ioctl_bt848_h
1045     dev_bktr_ioctl_meteor_h
1046     dev_ic_bt8xx_h
1047     dev_video_meteor_ioctl_meteor_h
1048     dev_video_bktr_ioctl_bt848_h
1049     dlfcn_h
1050     dlopen
1051     dos_paths
1052     ebp_available
1053     ebx_available
1054     exp2
1055     exp2f
1056     fast_64bit
1057     fast_clz
1058     fast_cmov
1059     fcntl
1060     fork
1061     getaddrinfo
1062     gethrtime
1063     GetProcessMemoryInfo
1064     GetProcessTimes
1065     getrusage
1066     gnu_as
1067     struct_rusage_ru_maxrss
1068     ibm_asm
1069     inet_aton
1070     inline_asm
1071     isatty
1072     kbhit
1073     ldbrx
1074     libdc1394_1
1075     libdc1394_2
1076     llrint
1077     llrintf
1078     local_aligned_16
1079     local_aligned_8
1080     log2
1081     log2f
1082     loongson
1083     lrint
1084     lrintf
1085     lzo1x_999_compress
1086     machine_ioctl_bt848_h
1087     machine_ioctl_meteor_h
1088     malloc_h
1089     MapViewOfFile
1090     memalign
1091     mkstemp
1092     mmap
1093     pld
1094     posix_memalign
1095     round
1096     roundf
1097     sdl
1098     sdl_video_size
1099     setmode
1100     sndio_h
1101     socklen_t
1102     soundcard_h
1103     poll_h
1104     setrlimit
1105     strerror_r
1106     strtok_r
1107     struct_addrinfo
1108     struct_ipv6_mreq
1109     struct_sockaddr_in6
1110     struct_sockaddr_sa_len
1111     struct_sockaddr_storage
1112     symver
1113     symver_gnu_asm
1114     symver_asm_label
1115     sys_mman_h
1116     sys_resource_h
1117     sys_select_h
1118     sys_soundcard_h
1119     sys_videoio_h
1120     ten_operands
1121     threads
1122     truncf
1123     vfp_args
1124     VirtualAlloc
1125     winsock2_h
1126     xform_asm
1127     xmm_clobbers
1128     yasm
1129 "
1130
1131 # options emitted with CONFIG_ prefix but not available on command line
1132 CONFIG_EXTRA="
1133     avutil
1134     gplv3
1135     lgplv3
1136 "
1137
1138 CMDLINE_SELECT="
1139     $ARCH_EXT_LIST
1140     $CONFIG_LIST
1141     $THREADS_LIST
1142     asm
1143     cross_compile
1144     debug
1145     extra_warnings
1146     logging
1147     optimizations
1148     symver
1149     yasm
1150 "
1151
1152 PATHS_LIST='
1153     bindir
1154     datadir
1155     incdir
1156     libdir
1157     mandir
1158     prefix
1159     shlibdir
1160 '
1161
1162 CMDLINE_SET="
1163     $PATHS_LIST
1164     ar
1165     arch
1166     as
1167     build_suffix
1168     cc
1169     cpu
1170     cross_prefix
1171     dep_cc
1172     extra_version
1173     host_cc
1174     host_cflags
1175     host_ldflags
1176     host_libs
1177     host_os
1178     ld
1179     logfile
1180     malloc_prefix
1181     nm
1182     pkg_config
1183     samples
1184     source_path
1185     sysinclude
1186     sysroot
1187     target_exec
1188     target_os
1189     target_path
1190 "
1191
1192 CMDLINE_APPEND="
1193     extra_cflags
1194 "
1195
1196 # code dependency declarations
1197
1198 # architecture extensions
1199
1200 armv5te_deps="arm"
1201 armv6_deps="arm"
1202 armv6t2_deps="arm"
1203 armvfp_deps="arm"
1204 iwmmxt_deps="arm"
1205 neon_deps="arm"
1206
1207 mmi_deps="mips"
1208
1209 altivec_deps="ppc"
1210 ppc4xx_deps="ppc"
1211
1212 vis_deps="sparc"
1213
1214 x86_64_suggest="cmov fast_cmov"
1215 amd3dnow_deps="mmx"
1216 amd3dnowext_deps="amd3dnow"
1217 mmx_deps="x86"
1218 mmx2_deps="mmx"
1219 sse_deps="mmx"
1220 ssse3_deps="sse"
1221 avx_deps="ssse3"
1222
1223 aligned_stack_if_any="ppc x86"
1224 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1225 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1226 fast_unaligned_if_any="armv6 ppc x86"
1227
1228 need_memalign="altivec neon sse"
1229 inline_asm_deps="!tms470"
1230
1231 symver_if_any="symver_asm_label symver_gnu_asm"
1232
1233 # subsystems
1234 dct_select="rdft"
1235 mdct_select="fft"
1236 rdft_select="fft"
1237
1238 # decoders / encoders / hardware accelerators
1239 aac_decoder_select="mdct rdft sinewin"
1240 aac_encoder_select="mdct sinewin"
1241 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1242 ac3_decoder_select="mdct ac3dsp ac3_parser"
1243 ac3_encoder_select="mdct ac3dsp"
1244 ac3_fixed_encoder_select="ac3dsp"
1245 alac_encoder_select="lpc"
1246 amrnb_decoder_select="lsp"
1247 amrwb_decoder_select="lsp"
1248 atrac1_decoder_select="mdct sinewin"
1249 atrac3_decoder_select="mdct"
1250 binkaudio_dct_decoder_select="mdct rdft dct"
1251 binkaudio_rdft_decoder_select="mdct rdft"
1252 cavs_decoder_select="golomb"
1253 cook_decoder_select="mdct sinewin"
1254 cscd_decoder_suggest="zlib"
1255 dca_decoder_select="mdct"
1256 dnxhd_encoder_select="aandct"
1257 dxa_decoder_select="zlib"
1258 eac3_decoder_select="ac3_decoder"
1259 eamad_decoder_select="aandct"
1260 eatgq_decoder_select="aandct"
1261 eatqi_decoder_select="aandct"
1262 ffv1_decoder_select="golomb"
1263 flac_decoder_select="golomb"
1264 flac_encoder_select="golomb lpc"
1265 flashsv_decoder_select="zlib"
1266 flashsv_encoder_select="zlib"
1267 flv_decoder_select="h263_decoder"
1268 flv_encoder_select="h263_encoder"
1269 fraps_decoder_select="huffman"
1270 h261_encoder_select="aandct"
1271 h263_decoder_select="h263_parser"
1272 h263_encoder_select="aandct"
1273 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1274 h263i_decoder_select="h263_decoder"
1275 h263p_encoder_select="h263_encoder"
1276 h264_decoder_select="golomb h264dsp h264pred"
1277 h264_dxva2_hwaccel_deps="dxva2api_h"
1278 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1279 h264_vaapi_hwaccel_select="vaapi"
1280 h264_vdpau_decoder_select="vdpau h264_decoder"
1281 imc_decoder_select="fft mdct"
1282 jpegls_decoder_select="golomb"
1283 jpegls_encoder_select="golomb"
1284 ljpeg_encoder_select="aandct"
1285 loco_decoder_select="golomb"
1286 mjpeg_encoder_select="aandct"
1287 mlp_decoder_select="mlp_parser"
1288 mp1float_decoder_select="dct"
1289 mp2float_decoder_select="dct"
1290 mp3adufloat_decoder_select="dct"
1291 mp3float_decoder_select="dct"
1292 mp3on4float_decoder_select="dct"
1293 mpeg1video_encoder_select="aandct"
1294 mpeg2video_encoder_select="aandct"
1295 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1296 mpeg4_encoder_select="h263_encoder"
1297 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1298 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1299 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1300 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1301 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1302 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1303 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1304 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1305 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1306 msmpeg4v1_decoder_select="h263_decoder"
1307 msmpeg4v1_encoder_select="h263_encoder"
1308 msmpeg4v2_decoder_select="h263_decoder"
1309 msmpeg4v2_encoder_select="h263_encoder"
1310 msmpeg4v3_decoder_select="h263_decoder"
1311 msmpeg4v3_encoder_select="h263_encoder"
1312 nellymoser_decoder_select="mdct sinewin"
1313 nellymoser_encoder_select="mdct sinewin"
1314 png_decoder_select="zlib"
1315 png_encoder_select="zlib"
1316 qcelp_decoder_select="lsp"
1317 qdm2_decoder_select="mdct rdft"
1318 ra_144_encoder_select="lpc"
1319 rv10_decoder_select="h263_decoder"
1320 rv10_encoder_select="h263_encoder"
1321 rv20_decoder_select="h263_decoder"
1322 rv20_encoder_select="h263_encoder"
1323 rv30_decoder_select="golomb h264pred"
1324 rv40_decoder_select="golomb h264pred"
1325 shorten_decoder_select="golomb"
1326 sipr_decoder_select="lsp"
1327 snow_decoder_select="dwt"
1328 snow_encoder_select="aandct dwt"
1329 svq1_encoder_select="aandct"
1330 svq3_decoder_select="golomb h264dsp h264pred"
1331 svq3_decoder_suggest="zlib"
1332 theora_decoder_select="vp3_decoder"
1333 tiff_decoder_suggest="zlib"
1334 tiff_encoder_suggest="zlib"
1335 truehd_decoder_select="mlp_decoder"
1336 tscc_decoder_select="zlib"
1337 twinvq_decoder_select="mdct lsp sinewin"
1338 vc1_decoder_select="h263_decoder"
1339 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1340 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1341 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1342 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1343 vorbis_decoder_select="mdct"
1344 vorbis_encoder_select="mdct"
1345 vp6_decoder_select="huffman"
1346 vp6a_decoder_select="vp6_decoder"
1347 vp6f_decoder_select="vp6_decoder"
1348 vp8_decoder_select="h264pred"
1349 wmapro_decoder_select="mdct sinewin"
1350 wmav1_decoder_select="mdct sinewin"
1351 wmav1_encoder_select="mdct sinewin"
1352 wmav2_decoder_select="mdct sinewin"
1353 wmav2_encoder_select="mdct sinewin"
1354 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1355 wmv1_decoder_select="h263_decoder"
1356 wmv1_encoder_select="h263_encoder"
1357 wmv2_decoder_select="h263_decoder"
1358 wmv2_encoder_select="h263_encoder"
1359 wmv3_decoder_select="vc1_decoder"
1360 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1361 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1362 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1363 zlib_decoder_select="zlib"
1364 zlib_encoder_select="zlib"
1365 zmbv_decoder_select="zlib"
1366 zmbv_encoder_select="zlib"
1367
1368 vaapi_deps="va_va_h"
1369 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1370
1371 # parsers
1372 h264_parser_select="golomb h264dsp h264pred"
1373
1374 # external libraries
1375 libdirac_decoder_deps="libdirac !libschroedinger"
1376 libdirac_encoder_deps="libdirac"
1377 libfaac_encoder_deps="libfaac"
1378 libgsm_decoder_deps="libgsm"
1379 libgsm_encoder_deps="libgsm"
1380 libgsm_ms_decoder_deps="libgsm"
1381 libgsm_ms_encoder_deps="libgsm"
1382 libmp3lame_encoder_deps="libmp3lame"
1383 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1384 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1385 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1386 libopenjpeg_decoder_deps="libopenjpeg"
1387 libschroedinger_decoder_deps="libschroedinger"
1388 libschroedinger_encoder_deps="libschroedinger"
1389 libspeex_decoder_deps="libspeex"
1390 libtheora_encoder_deps="libtheora"
1391 libvo_aacenc_encoder_deps="libvo_aacenc"
1392 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1393 libvorbis_encoder_deps="libvorbis"
1394 libvpx_decoder_deps="libvpx"
1395 libvpx_encoder_deps="libvpx"
1396 libx264_encoder_deps="libx264"
1397 libxavs_encoder_deps="libxavs"
1398 libxvid_encoder_deps="libxvid"
1399
1400 # demuxers / muxers
1401 ac3_demuxer_select="ac3_parser"
1402 asf_stream_muxer_select="asf_muxer"
1403 avisynth_demuxer_deps="avisynth"
1404 dirac_demuxer_select="dirac_parser"
1405 eac3_demuxer_select="ac3_parser"
1406 flac_demuxer_select="flac_parser"
1407 ipod_muxer_select="mov_muxer"
1408 libnut_demuxer_deps="libnut"
1409 libnut_muxer_deps="libnut"
1410 matroska_audio_muxer_select="matroska_muxer"
1411 matroska_demuxer_suggest="zlib bzlib"
1412 mov_demuxer_suggest="zlib"
1413 mp3_demuxer_select="mpegaudio_parser"
1414 mp4_muxer_select="mov_muxer"
1415 mpegtsraw_demuxer_select="mpegts_demuxer"
1416 mxf_d10_muxer_select="mxf_muxer"
1417 ogg_demuxer_select="golomb"
1418 psp_muxer_select="mov_muxer"
1419 rtp_demuxer_select="sdp_demuxer"
1420 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1421 rtsp_demuxer_select="http_protocol rtpdec"
1422 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1423 sap_demuxer_select="sdp_demuxer"
1424 sap_muxer_select="rtp_muxer rtp_protocol"
1425 sdp_demuxer_select="rtpdec"
1426 spdif_muxer_select="aac_parser"
1427 tg2_muxer_select="mov_muxer"
1428 tgp_muxer_select="mov_muxer"
1429 w64_demuxer_deps="wav_demuxer"
1430
1431 # indevs / outdevs
1432 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1433 alsa_outdev_deps="alsa_asoundlib_h"
1434 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1435 dv1394_indev_deps="dv1394 dv_demuxer"
1436 fbdev_indev_deps="linux_fb_h"
1437 jack_indev_deps="jack_jack_h"
1438 libdc1394_indev_deps="libdc1394"
1439 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1440 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1441 sndio_indev_deps="sndio_h"
1442 sndio_outdev_deps="sndio_h"
1443 v4l_indev_deps="linux_videodev_h"
1444 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1445 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1446 vfwcap_indev_extralibs="-lavicap32"
1447 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1448 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1449
1450 # protocols
1451 gopher_protocol_deps="network"
1452 http_protocol_deps="network"
1453 http_protocol_select="tcp_protocol"
1454 mmsh_protocol_select="http_protocol"
1455 mmst_protocol_deps="network"
1456 rtmp_protocol_select="tcp_protocol"
1457 rtp_protocol_select="udp_protocol"
1458 tcp_protocol_deps="network"
1459 udp_protocol_deps="network"
1460
1461 # filters
1462 blackframe_filter_deps="gpl"
1463 cropdetect_filter_deps="gpl"
1464 frei0r_filter_deps="frei0r dlopen strtok_r"
1465 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1466 hqdn3d_filter_deps="gpl"
1467 scale_filter_deps="swscale"
1468 ocv_filter_deps="libopencv"
1469 yadif_filter_deps="gpl"
1470
1471 # libraries
1472 avdevice_deps="avcodec avformat"
1473 avformat_deps="avcodec"
1474
1475 # programs
1476 ffmpeg_deps="avcodec avformat swscale"
1477 ffmpeg_select="buffer_filter"
1478 ffplay_deps="avcodec avformat swscale sdl"
1479 ffplay_select="rdft"
1480 ffprobe_deps="avcodec avformat"
1481 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1482 ffserver_extralibs='$ldl'
1483
1484 doc_deps="texi2html"
1485
1486 # tests
1487
1488 test_deps(){
1489     suf1=$1
1490     suf2=$2
1491     shift 2
1492     for v; do
1493         dep=${v%=*}
1494         tests=${v#*=}
1495         for name in ${tests}; do
1496             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1497         done
1498     done
1499 }
1500
1501 set_ne_test_deps(){
1502     eval ${1}_be_test_deps="bigendian"
1503     eval ${1}_le_test_deps="!bigendian"
1504 }
1505
1506 test_deps _encoder _decoder                                             \
1507     adpcm_g726=g726                                                     \
1508     adpcm_ima_qt                                                        \
1509     adpcm_ima_wav                                                       \
1510     adpcm_ms                                                            \
1511     adpcm_swf                                                           \
1512     adpcm_yamaha=adpcm_yam                                              \
1513     alac                                                                \
1514     asv1                                                                \
1515     asv2                                                                \
1516     bmp                                                                 \
1517     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1518     dvvideo="dv dv50"                                                   \
1519     ffv1                                                                \
1520     flac                                                                \
1521     flashsv                                                             \
1522     flv                                                                 \
1523     gif                                                                 \
1524     h261                                                                \
1525     h263="h263 h263p"                                                   \
1526     huffyuv                                                             \
1527     jpegls                                                              \
1528     mjpeg="jpg mjpeg ljpeg"                                             \
1529     mp2                                                                 \
1530     mpeg1video="mpeg mpeg1b"                                            \
1531     mpeg2video="mpeg2 mpeg2thread"                                      \
1532     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1533     msmpeg4v3=msmpeg4                                                   \
1534     msmpeg4v2                                                           \
1535     pbm=pbmpipe                                                         \
1536     pcx                                                                 \
1537     pgm="pgm pgmpipe"                                                   \
1538     png                                                                 \
1539     ppm="ppm ppmpipe"                                                   \
1540     rawvideo="rgb yuv"                                                  \
1541     roq                                                                 \
1542     rv10                                                                \
1543     rv20                                                                \
1544     sgi                                                                 \
1545     snow="snow snowll"                                                  \
1546     svq1                                                                \
1547     targa=tga                                                           \
1548     tiff                                                                \
1549     wmav1                                                               \
1550     wmav2                                                               \
1551     wmv1                                                                \
1552     wmv2                                                                \
1553
1554 test_deps _muxer _demuxer                                               \
1555     aiff                                                                \
1556     pcm_alaw=alaw                                                       \
1557     asf                                                                 \
1558     au                                                                  \
1559     avi                                                                 \
1560     dv=dv_fmt                                                           \
1561     ffm                                                                 \
1562     flv=flv_fmt                                                         \
1563     gxf                                                                 \
1564     matroska=mkv                                                        \
1565     mmf                                                                 \
1566     mov                                                                 \
1567     pcm_mulaw=mulaw                                                     \
1568     mxf                                                                 \
1569     nut                                                                 \
1570     ogg                                                                 \
1571     rawvideo=pixfmt                                                     \
1572     rm                                                                  \
1573     swf                                                                 \
1574     mpegts=ts                                                           \
1575     voc                                                                 \
1576     wav                                                                 \
1577     yuv4mpegpipe=yuv4mpeg                                               \
1578
1579 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1580 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1581
1582 set_ne_test_deps pixdesc
1583 set_ne_test_deps pixfmts_copy
1584 set_ne_test_deps pixfmts_crop
1585 set_ne_test_deps pixfmts_hflip
1586 set_ne_test_deps pixfmts_null
1587 set_ne_test_deps pixfmts_pad
1588 set_ne_test_deps pixfmts_scale
1589 set_ne_test_deps pixfmts_vflip
1590
1591 # default parameters
1592
1593 logfile="config.log"
1594
1595 # installation paths
1596 prefix_default="/usr/local"
1597 bindir_default='${prefix}/bin'
1598 datadir_default='${prefix}/share/ffmpeg'
1599 incdir_default='${prefix}/include'
1600 libdir_default='${prefix}/lib'
1601 mandir_default='${prefix}/share/man'
1602 shlibdir_default="$libdir_default"
1603
1604 # toolchain
1605 ar_default="ar"
1606 cc_default="gcc"
1607 cc_version=\"unknown\"
1608 host_cc_default="gcc"
1609 ln_s="ln -sf"
1610 nm_default="nm"
1611 objformat="elf"
1612 pkg_config_default=pkg-config
1613 ranlib="ranlib"
1614 yasmexe="yasm"
1615 nogas=":"
1616
1617 nm_opts='-g'
1618
1619 # machine
1620 arch_default=$(uname -m)
1621 cpu="generic"
1622
1623 # OS
1624 target_os_default=$(tolower $(uname -s))
1625 host_os=$target_os_default
1626
1627 # configurable options
1628 enable avcodec
1629 enable avdevice
1630 enable avfilter
1631 enable avformat
1632 enable avutil
1633 enable asm
1634 enable debug
1635 enable doc
1636 enable fastdiv
1637 enable ffmpeg
1638 enable ffplay
1639 enable ffprobe
1640 enable ffserver
1641 enable mpegaudio_hp
1642 enable network
1643 enable optimizations
1644 enable protocols
1645 enable static
1646 enable swscale
1647 enable swscale_alpha
1648
1649 # build settings
1650 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1651 FFSERVERLDFLAGS=-Wl,-E
1652 LIBPREF="lib"
1653 LIBSUF=".a"
1654 FULLNAME='$(NAME)$(BUILDSUF)'
1655 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1656 SLIBPREF="lib"
1657 SLIBSUF=".so"
1658 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1659 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1660 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1661 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1662
1663 CC_O='-o $@'
1664
1665 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1666 host_libs='-lm'
1667
1668 target_path='$(CURDIR)'
1669
1670 # since the object filename is not given with the -MM flag, the compiler
1671 # is only able to print the basename, and we must add the path ourselves
1672 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1673 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1674
1675 # find source path
1676 source_path="$(dirname "$0")"
1677 enable source_path_used
1678 if test -f configure; then
1679     source_path="$(pwd)"
1680     disable source_path_used
1681 else
1682     source_path="$(cd "$source_path"; pwd)"
1683     echo "$source_path" | grep -q '[[:blank:]]' &&
1684         die "Out of tree builds are impossible with whitespace in source path."
1685     test -e "$source_path/config.h" &&
1686         die "Out of tree builds are impossible with config.h in source dir."
1687 fi
1688
1689 for v in "$@"; do
1690     r=${v#*=}
1691     l=${v%"$r"}
1692     r=$(sh_quote "$r")
1693     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1694 done
1695
1696 find_things(){
1697     thing=$1
1698     pattern=$2
1699     file=$source_path/$3
1700     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1701 }
1702
1703 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1704 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1705 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1706 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1707 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1708 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1709 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1710 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1711 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1712 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1713 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1714
1715 find_tests(){
1716     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1717 }
1718
1719 ACODEC_TESTS=$(find_tests acodec)
1720 VCODEC_TESTS=$(find_tests vsynth1)
1721 LAVF_TESTS=$(find_tests lavf)
1722 LAVFI_TESTS=$(find_tests lavfi)
1723 SEEK_TESTS=$(find_tests seek seek_)
1724
1725 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1726
1727 for n in $COMPONENT_LIST; do
1728     v=$(toupper ${n%s})_LIST
1729     eval enable \$$v
1730     eval ${n}_if_any="\$$v"
1731 done
1732
1733 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1734
1735 die_unknown(){
1736     echo "Unknown option \"$1\"."
1737     echo "See $0 --help for available options."
1738     exit 1
1739 }
1740
1741 show_list() {
1742     suffix=_$1
1743     shift
1744     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1745     exit 0
1746 }
1747
1748 for opt do
1749     optval="${opt#*=}"
1750     case "$opt" in
1751     --extra-ldflags=*) add_ldflags $optval
1752     ;;
1753     --extra-libs=*) add_extralibs $optval
1754     ;;
1755     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1756     ;;
1757     --enable-debug=*) debuglevel="$optval"
1758     ;;
1759     --disable-everything)
1760     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1761     ;;
1762     --enable-*=*|--disable-*=*)
1763     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1764     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1765     eval list=\$$(toupper $thing)_LIST
1766     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1767     $action $(filter "$name" $list)
1768     ;;
1769     --enable-?*|--disable-?*)
1770     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1771     if is_in $option $COMPONENT_LIST; then
1772         test $action = disable && action=unset
1773         eval $action \$$(toupper ${option%s})_LIST
1774     elif is_in $option $CMDLINE_SELECT; then
1775         $action $option
1776     else
1777         die_unknown $opt
1778     fi
1779     ;;
1780     --list-*)
1781         NAME="${opt#--list-}"
1782         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1783         NAME=${NAME%s}
1784         eval show_list $NAME \$$(toupper $NAME)_LIST
1785     ;;
1786     --help|-h) show_help
1787     ;;
1788     *)
1789     optname="${opt%%=*}"
1790     optname="${optname#--}"
1791     optname=$(echo "$optname" | sed 's/-/_/g')
1792     if is_in $optname $CMDLINE_SET; then
1793         eval $optname='$optval'
1794     elif is_in $optname $CMDLINE_APPEND; then
1795         append $optname "$optval"
1796     else
1797          die_unknown $opt
1798     fi
1799     ;;
1800     esac
1801 done
1802
1803 disabled logging && logfile=/dev/null
1804
1805 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1806 set >> $logfile
1807
1808 test -n "$cross_prefix" && enable cross_compile
1809
1810 if enabled cross_compile; then
1811     test -n "$arch" && test -n "$target_os" ||
1812         die "Must specify target arch and OS when cross-compiling"
1813 fi
1814
1815 set_default arch target_os
1816
1817 ar_default="${cross_prefix}${ar_default}"
1818 cc_default="${cross_prefix}${cc_default}"
1819 nm_default="${cross_prefix}${nm_default}"
1820 pkg_config_default="${cross_prefix}${pkg_config_default}"
1821 ranlib="${cross_prefix}${ranlib}"
1822
1823 sysinclude_default="${sysroot}/usr/include"
1824
1825 set_default cc nm pkg_config sysinclude
1826 enabled cross_compile || host_cc_default=$cc
1827 set_default host_cc
1828
1829 exesuf() {
1830     case $1 in
1831         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1832     esac
1833 }
1834
1835 EXESUF=$(exesuf $target_os)
1836 HOSTEXESUF=$(exesuf $host_os)
1837
1838 # set temporary file name
1839 : ${TMPDIR:=$TEMPDIR}
1840 : ${TMPDIR:=$TMP}
1841 : ${TMPDIR:=/tmp}
1842
1843 if ! check_cmd mktemp -u XXXXXX; then
1844     # simple replacement for missing mktemp
1845     # NOT SAFE FOR GENERAL USE
1846     mktemp(){
1847         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1848     }
1849 fi
1850
1851 tmpfile(){
1852     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1853         (set -C; exec > $tmp) 2>/dev/null ||
1854         die "Unable to create temporary file in $TMPDIR."
1855     append TMPFILES $tmp
1856     eval $1=$tmp
1857 }
1858
1859 trap 'rm -f -- $TMPFILES' EXIT
1860
1861 tmpfile TMPC  .c
1862 tmpfile TMPE  $EXESUF
1863 tmpfile TMPH  .h
1864 tmpfile TMPO  .o
1865 tmpfile TMPS  .S
1866 tmpfile TMPV  .ver
1867 tmpfile TMPSH .sh
1868 tmpfile TMPASM .asm
1869
1870 unset -f mktemp
1871
1872 chmod +x $TMPE
1873
1874 # make sure we can execute files in $TMPDIR
1875 cat > $TMPSH 2>> $logfile <<EOF
1876 #! /bin/sh
1877 EOF
1878 chmod +x $TMPSH >> $logfile 2>&1
1879 if ! $TMPSH >> $logfile 2>&1; then
1880     cat <<EOF
1881 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1882 variable to another directory and make sure that it is not mounted noexec.
1883 EOF
1884     die "Sanity test failed."
1885 fi
1886
1887 filter_cflags=echo
1888 filter_cppflags=echo
1889 filter_asflags=echo
1890
1891 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1892     cc_type=llvm_gcc
1893     cc_version=__VERSION__
1894     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1895     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1896     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1897     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1898     speed_cflags='-O3'
1899     size_cflags='-Os'
1900 elif $cc -v 2>&1 | grep -qi ^gcc; then
1901     cc_type=gcc
1902     cc_version=__VERSION__
1903     gcc_version=$($cc --version | head -n1)
1904     gcc_basever=$($cc -dumpversion)
1905     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1906     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1907     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1908     if ! $cc -dumpversion | grep -q '^2\.'; then
1909         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1910         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1911     fi
1912     speed_cflags='-O3'
1913     size_cflags='-Os'
1914 elif $cc --version 2>/dev/null | grep -q Intel; then
1915     cc_type=icc
1916     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1917     cc_ident=$($cc --version | head -n1)
1918     icc_version=$($cc -dumpversion)
1919     CC_DEPFLAGS='-MMD'
1920     AS_DEPFLAGS='-MMD'
1921     speed_cflags='-O3'
1922     size_cflags='-Os'
1923     noopt_cflags='-O1'
1924 elif $cc -v 2>&1 | grep -q xlc; then
1925     cc_type=xlc
1926     cc_version="AV_STRINGIFY(__IBMC__)"
1927     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1928     speed_cflags='-O5'
1929     size_cflags='-O5 -qcompact'
1930 elif $cc -V 2>/dev/null | grep -q Compaq; then
1931     cc_type=ccc
1932     cc_version="AV_STRINGIFY(__DECC_VER)"
1933     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1934     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1935     debuglevel=3
1936     add_ldflags -Wl,-z,now # calls to libots crash without this
1937     speed_cflags='-fast'
1938     size_cflags='-O1'
1939 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1940     test -d "$sysroot" || die "No valid sysroot specified."
1941     cc_type=armcc
1942     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1943     cc_ident=$($cc --vsn | head -n1)
1944     armcc_conf="$PWD/armcc.conf"
1945     $cc --arm_linux_configure                 \
1946         --arm_linux_config_file="$armcc_conf" \
1947         --configure_sysroot="$sysroot"        \
1948         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1949         die "Error creating armcc configuration file."
1950     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1951     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1952     as_default="${cross_prefix}gcc"
1953     CC_DEPFLAGS='-MMD'
1954     AS_DEPFLAGS='-MMD'
1955     speed_cflags='-O3'
1956     size_cflags='-Os'
1957     filter_asflags="filter_out -W${armcc_opt}*"
1958 elif $cc -version 2>/dev/null | grep -q TMS470; then
1959     cc_type=tms470
1960     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1961     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1962     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1963     CC_O='-fr=$(@D)'
1964     as_default="${cross_prefix}gcc"
1965     ld_default="${cross_prefix}gcc"
1966     TMPO=$(basename $TMPC .c).o
1967     append TMPFILES $TMPO
1968     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1969     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1970     AS_DEPFLAGS='-MMD'
1971     speed_cflags='-O3 -mf=5'
1972     size_cflags='-O3 -mf=2'
1973     filter_cflags=tms470_flags
1974     tms470_flags(){
1975         for flag; do
1976             case $flag in
1977                 -march=*|-mcpu=*)
1978                     case "${flag#*=}" in
1979                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1980                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1981                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1982                         armv6*|arm11*)          echo -mv=6   ;;
1983                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1984                                                 echo -mv=5e  ;;
1985                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1986                     esac
1987                     ;;
1988                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1989                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1990                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1991                 -msoft-float)   echo --float_support=vfplib       ;;
1992                 -O[0-3]|-mf=*)  echo $flag                        ;;
1993                 -g)             echo -g -mn                       ;;
1994                 -pds=*)         echo $flag                        ;;
1995             esac
1996         done
1997     }
1998 elif $cc -v 2>&1 | grep -q clang; then
1999     cc_type=clang
2000     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2001         cc_version=__clang_version__ || cc_version=__VERSION__
2002     cc_ident=$($cc --version | head -n1)
2003     CC_DEPFLAGS='-MMD'
2004     AS_DEPFLAGS='-MMD'
2005     speed_cflags='-O3'
2006     size_cflags='-Os'
2007 elif $cc -V 2>&1 | grep -q Sun; then
2008     cc_type=suncc
2009     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2010     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2011     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2012     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2013     speed_cflags='-O5'
2014     size_cflags='-O5 -xspace'
2015     filter_cflags=suncc_flags
2016     suncc_flags(){
2017         for flag; do
2018             case $flag in
2019                 -march=*|-mcpu=*)
2020                     case "${flag#*=}" in
2021                         native)                   echo -xtarget=native       ;;
2022                         v9|niagara)               echo -xarch=sparc          ;;
2023                         ultrasparc)               echo -xarch=sparcvis       ;;
2024                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2025                         i586|pentium)             echo -xchip=pentium        ;;
2026                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2027                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2028                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2029                         pentium4*)          echo -xtarget=pentium4           ;;
2030                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2031                         *-sse3)             echo -xarch=sse3                 ;;
2032                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2033                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2034                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2035                         k8|opteron|athlon64|athlon-fx)
2036                                                   echo -xarch=sse2a          ;;
2037                         athlon*)                  echo -xarch=pentium_proa   ;;
2038                     esac
2039                     ;;
2040                 -std=c99)             echo -xc99              ;;
2041                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2042                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2043                 -W*,*)                echo $flag              ;;
2044                 -f*-*|-W*)                                    ;;
2045                 *)                    echo $flag              ;;
2046             esac
2047         done
2048     }
2049 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2050     cc_type=pathscale
2051     cc_version=__PATHSCALE__
2052     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2053     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2054     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2055     speed_cflags='-O2'
2056     size_cflags='-Os'
2057 elif $cc -v 2>&1 | grep -q Open64; then
2058     cc_type=open64
2059     cc_version=__OPEN64__
2060     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2061     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2062     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2063     speed_cflags='-O2'
2064     size_cflags='-Os'
2065 fi
2066
2067 test -n "$cc_type" && enable $cc_type ||
2068     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2069
2070 : ${as_default:=$cc}
2071 : ${dep_cc_default:=$cc}
2072 : ${ld_default:=$cc}
2073 set_default ar as dep_cc ld
2074
2075 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2076 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2077
2078 add_cflags $extra_cflags
2079 add_asflags $extra_cflags
2080
2081 if test -n "$sysroot"; then
2082     case "$cc_type" in
2083         gcc|llvm_gcc|clang)
2084             add_cppflags --sysroot="$sysroot"
2085             add_ldflags --sysroot="$sysroot"
2086         ;;
2087         tms470)
2088             add_cppflags -I"$sysinclude"
2089             add_ldflags  --sysroot="$sysroot"
2090         ;;
2091     esac
2092 fi
2093
2094 if test "$cpu" = host; then
2095     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2096
2097     case "$cc_type" in
2098         gcc|llvm_gcc)
2099             check_native(){
2100                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2101                 sed -n "/$1=/{
2102                             s/.*$1=\\([^ ]*\\).*/\\1/
2103                             p
2104                             q
2105                         }" $TMPE
2106             }
2107             cpu=$(check_native -march || check_native -mcpu)
2108         ;;
2109     esac
2110
2111     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2112 fi
2113
2114 # Deal with common $arch aliases
2115 case "$arch" in
2116     arm*)
2117         arch="arm"
2118     ;;
2119     mips|mipsel|IP*)
2120         arch="mips"
2121     ;;
2122     mips64*)
2123         arch="mips"
2124         subarch="mips64"
2125     ;;
2126     parisc|hppa)
2127         arch="parisc"
2128     ;;
2129     parisc64|hppa64)
2130         arch="parisc"
2131         subarch="parisc64"
2132     ;;
2133     "Power Macintosh"|ppc|powerpc)
2134         arch="ppc"
2135     ;;
2136     ppc64|powerpc64)
2137         arch="ppc"
2138         subarch="ppc64"
2139     ;;
2140     s390|s390x)
2141         arch="s390"
2142     ;;
2143     sh4|sh)
2144         arch="sh4"
2145     ;;
2146     sun4u|sparc64)
2147         arch="sparc"
2148         subarch="sparc64"
2149     ;;
2150     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2151         arch="x86"
2152     ;;
2153 esac
2154
2155 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2156 enable $arch
2157
2158 # Add processor-specific flags
2159 if test "$cpu" = generic; then
2160     : do nothing
2161 elif enabled ppc; then
2162
2163     case $(tolower $cpu) in
2164         601|ppc601|powerpc601)
2165             cpuflags="-mcpu=601"
2166             disable altivec
2167         ;;
2168         603*|ppc603*|powerpc603*)
2169             cpuflags="-mcpu=603"
2170             disable altivec
2171         ;;
2172         604*|ppc604*|powerpc604*)
2173             cpuflags="-mcpu=604"
2174             disable altivec
2175         ;;
2176         g3|75*|ppc75*|powerpc75*)
2177             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2178             disable altivec
2179         ;;
2180         g4|745*|ppc745*|powerpc745*)
2181             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2182         ;;
2183         74*|ppc74*|powerpc74*)
2184             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2185         ;;
2186         g5|970|ppc970|powerpc970|power4*)
2187             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2188         ;;
2189         cell)
2190             cpuflags="-mcpu=cell"
2191             enable ldbrx
2192         ;;
2193         e500v2)
2194             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2195             disable altivec
2196         ;;
2197         e500)
2198             cpuflags="-mcpu=8540 -mhard-float"
2199             disable altivec
2200         ;;
2201     esac
2202
2203 elif enabled x86; then
2204
2205     case $cpu in
2206         i[345]86|pentium)
2207             cpuflags="-march=$cpu"
2208             disable mmx
2209         ;;
2210         # targets that do NOT support conditional mov (cmov)
2211         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2212             cpuflags="-march=$cpu"
2213             disable cmov
2214         ;;
2215         # targets that do support conditional mov (cmov)
2216         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2217             cpuflags="-march=$cpu"
2218             enable cmov
2219             enable fast_cmov
2220         ;;
2221         # targets that do support conditional mov but on which it's slow
2222         pentium4|pentium4m|prescott|nocona)
2223             cpuflags="-march=$cpu"
2224             enable cmov
2225             disable fast_cmov
2226         ;;
2227     esac
2228
2229 elif enabled sparc; then
2230
2231     case $cpu in
2232         niagara)
2233             cpuflags="-mcpu=$cpu"
2234             disable vis
2235         ;;
2236         sparc64)
2237             cpuflags="-mcpu=v9"
2238         ;;
2239     esac
2240
2241 elif enabled arm; then
2242
2243     case $cpu in
2244         armv*)
2245             cpuflags="-march=$cpu"
2246             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2247         ;;
2248         *)
2249             cpuflags="-mcpu=$cpu"
2250             case $cpu in
2251                 cortex-a*)                               subarch=armv7a  ;;
2252                 cortex-r*)                               subarch=armv7r  ;;
2253                 cortex-m*)                               subarch=armv7m  ;;
2254                 arm11*)                                  subarch=armv6   ;;
2255                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2256                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2257             esac
2258         ;;
2259     esac
2260
2261 elif enabled alpha; then
2262
2263     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2264
2265 elif enabled bfin; then
2266
2267     cpuflags="-mcpu=$cpu"
2268
2269 elif enabled mips; then
2270
2271     cpuflags="-march=$cpu"
2272
2273 elif enabled avr32; then
2274
2275     case $cpu in
2276         ap7[02]0[0-2])
2277             subarch="avr32_ap"
2278             cpuflags="-mpart=$cpu"
2279         ;;
2280         ap)
2281             subarch="avr32_ap"
2282             cpuflags="-march=$cpu"
2283         ;;
2284         uc3[ab]*)
2285             subarch="avr32_uc"
2286             cpuflags="-mcpu=$cpu"
2287         ;;
2288         uc)
2289             subarch="avr32_uc"
2290             cpuflags="-march=$cpu"
2291         ;;
2292     esac
2293
2294 fi
2295
2296 add_cflags $cpuflags
2297 add_asflags $cpuflags
2298
2299 # compiler sanity check
2300 check_exec <<EOF
2301 int main(void){ return 0; }
2302 EOF
2303 if test "$?" != 0; then
2304     echo "$cc is unable to create an executable file."
2305     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2306         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2307         echo "Only do this if you know what cross compiling means."
2308     fi
2309     die "C compiler test failed."
2310 fi
2311
2312 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2313 check_cflags -std=c99
2314 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2315 #include <stdlib.h>
2316 EOF
2317 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2318 #include <stdlib.h>
2319 EOF
2320
2321 check_host_cflags -std=c99
2322
2323 case "$arch" in
2324     alpha|ia64|mips|parisc|sparc)
2325         spic=$shared
2326     ;;
2327     x86)
2328         subarch="x86_32"
2329         check_cc <<EOF && subarch="x86_64"
2330         int test[(int)sizeof(char*) - 7];
2331 EOF
2332         if test "$subarch" = "x86_64"; then
2333             spic=$shared
2334         fi
2335     ;;
2336 esac
2337
2338 enable $subarch
2339 enabled spic && enable pic
2340
2341 # OS specific
2342 case $target_os in
2343     haiku)
2344         prefix_default="/boot/common"
2345         network_extralibs="-lnetwork"
2346         host_libs=
2347         ;;
2348     sunos)
2349         FFSERVERLDFLAGS=""
2350         SHFLAGS='-shared -Wl,-h,$$(@F)'
2351         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2352         network_extralibs="-lsocket -lnsl"
2353         add_cppflags -D__EXTENSIONS__
2354         nm_opts='-P -g'
2355         ;;
2356     netbsd)
2357         disable symver
2358         oss_indev_extralibs="-lossaudio"
2359         oss_outdev_extralibs="-lossaudio"
2360         add_cppflags -D_XOPEN_SOURCE=600
2361         ;;
2362     openbsd)
2363         enable malloc_aligned
2364         # On OpenBSD 4.5. the compiler does not use PIC unless
2365         # explicitly using -fPIC. Libav builds fine without PIC,
2366         # however the generated executable will not do anything
2367         # (simply quits with exit-code 1, no crash, no output).
2368         # Thus explicitly enable PIC here.
2369         enable pic
2370         disable symver
2371         SHFLAGS='-shared'
2372         oss_indev_extralibs="-lossaudio"
2373         oss_outdev_extralibs="-lossaudio"
2374         ;;
2375     dragonfly)
2376         enable malloc_aligned
2377         disable symver
2378         ;;
2379     freebsd)
2380         enable malloc_aligned
2381         ;;
2382     bsd/os)
2383         add_extralibs -lpoll -lgnugetopt
2384         ;;
2385     darwin)
2386         enable malloc_aligned
2387         gas="gas-preprocessor.pl $cc"
2388         enabled ppc && add_asflags -force_cpusubtype_ALL
2389         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2390         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2391         add_ldflags -Wl,-dynamic,-search_paths_first
2392         SLIBSUF=".dylib"
2393         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2394         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2395         FFSERVERLDFLAGS=-Wl,-bind_at_load
2396         objformat="macho"
2397         enabled x86_64 && objformat="macho64"
2398         enabled_any pic shared ||
2399             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2400         ;;
2401     mingw32*)
2402         if test $target_os = "mingw32ce"; then
2403             disable network
2404         else
2405             target_os=mingw32
2406         fi
2407         LIBTARGET=i386
2408         if enabled x86_64; then
2409             enable malloc_aligned
2410             LIBTARGET="i386:x86-64"
2411         elif enabled arm; then
2412             LIBTARGET=arm-wince
2413         fi
2414         shlibdir_default="$bindir_default"
2415         SLIBPREF=""
2416         SLIBSUF=".dll"
2417         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2418         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2419         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2420         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2421             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2422             install -d "$(LIBDIR)"; \
2423             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2424         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2425         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'
2426         objformat="win32"
2427         dlltool="${cross_prefix}dlltool"
2428         enable dos_paths
2429         check_cflags -fno-common
2430         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2431                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2432                 die "ERROR: MinGW runtime version must be >= 3.15."
2433         add_cppflags -U__STRICT_ANSI__
2434         ;;
2435     cygwin*)
2436         target_os=cygwin
2437         shlibdir_default="$bindir_default"
2438         SLIBPREF="cyg"
2439         SLIBSUF=".dll"
2440         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2441         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2442         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2443         objformat="win32"
2444         enable dos_paths
2445         check_cflags -fno-common
2446         ;;
2447     *-dos|freedos|opendos)
2448         network_extralibs="-lsocket"
2449         objformat="coff"
2450         enable dos_paths
2451         ;;
2452     linux)
2453         enable dv1394
2454         ;;
2455     irix*)
2456         target_os=irix
2457         ranlib="echo ignoring ranlib"
2458         ;;
2459     os/2*)
2460         ln_s="cp -f"
2461         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2462         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2463         FFSERVERLDFLAGS=""
2464         LIBSUF="_s.a"
2465         SLIBPREF=""
2466         SLIBSUF=".dll"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2469         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2470           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2471           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2472           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2473           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2474           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2475         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2476           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2477         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2478         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2479         enable dos_paths
2480         ;;
2481     gnu/kfreebsd)
2482         ;;
2483     gnu)
2484         ;;
2485     qnx)
2486         add_cppflags -D_QNX_SOURCE
2487         network_extralibs="-lsocket"
2488         ;;
2489     symbian)
2490         SLIBSUF=".dll"
2491         enable dos_paths
2492         add_cflags --include=$sysinclude/gcce/gcce.h
2493         ;;
2494     none)
2495         ;;
2496     *)
2497         die "Unknown OS '$target_os'."
2498         ;;
2499 esac
2500
2501 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2502
2503 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2504
2505 set_default $PATHS_LIST
2506
2507 # we need to build at least one lib type
2508 if ! enabled_any static shared; then
2509     cat <<EOF
2510 At least one library type must be built.
2511 Specify --enable-static to build the static libraries or --enable-shared to
2512 build the shared libraries as well. To only build the shared libraries specify
2513 --disable-static in addition to --enable-shared.
2514 EOF
2515     exit 1;
2516 fi
2517
2518 disabled static && LIBNAME=""
2519
2520 die_license_disabled() {
2521     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2522 }
2523
2524 die_license_disabled gpl libx264
2525 die_license_disabled gpl libxavs
2526 die_license_disabled gpl libxvid
2527 die_license_disabled gpl postproc
2528 die_license_disabled gpl x11grab
2529
2530 die_license_disabled nonfree libfaac
2531
2532 die_license_disabled version3 libopencore_amrnb
2533 die_license_disabled version3 libopencore_amrwb
2534 die_license_disabled version3 libvo_aacenc
2535 die_license_disabled version3 libvo_amrwbenc
2536
2537 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2538
2539 disabled optimizations || check_cflags -fomit-frame-pointer
2540
2541 enable_pic() {
2542     enable pic
2543     add_cppflags -DPIC
2544     add_cflags   -fPIC
2545     add_asflags  -fPIC
2546 }
2547
2548 enabled pic && enable_pic
2549
2550 check_cc <<EOF || die "Symbol mangling check failed."
2551 int ff_extern;
2552 EOF
2553 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2554 extern_prefix=${sym%%ff_extern*}
2555
2556 check_cc <<EOF && enable inline_asm
2557 void foo(void) { __asm__ volatile ("" ::); }
2558 EOF
2559
2560 _restrict=
2561 for restrict_keyword in restrict __restrict__ __restrict; do
2562     check_cc <<EOF && _restrict=$restrict_keyword && break
2563 void foo(char * $restrict_keyword p);
2564 EOF
2565 done
2566
2567 check_cc <<EOF && enable attribute_packed
2568 struct { int x; } __attribute__((packed)) x;
2569 EOF
2570
2571 check_cc <<EOF && enable attribute_may_alias
2572 union { int x; } __attribute__((may_alias)) x;
2573 EOF
2574
2575 check_cc <<EOF || die "endian test failed"
2576 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2577 EOF
2578 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2579
2580 if enabled alpha; then
2581
2582     check_cflags -mieee
2583
2584 elif enabled arm; then
2585
2586     check_cflags -marm
2587     nogas=die
2588
2589     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2590         enable vfp_args
2591     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2592         case "${cross_prefix:-$cc}" in
2593             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2594             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2595 __asm__ (".eabi_attribute 28, 1");
2596 int main(void) { return 0; }
2597 EOF
2598         esac
2599         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2600     fi
2601
2602     # We have to check if pld is a nop and disable it.
2603     check_asm pld '"pld [r0]"'
2604
2605     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2606     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2607     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2608     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2609     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2610     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2611
2612     enabled_all armv6t2 shared !pic && enable_pic
2613
2614 elif enabled mips; then
2615
2616     check_asm loongson '"dmult.g $1, $2, $3"'
2617     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2618
2619 elif enabled ppc; then
2620
2621     enable local_aligned_8 local_aligned_16
2622
2623     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2624     check_asm ibm_asm   '"add 0, 0, 0"'
2625     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2626     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2627
2628     # AltiVec flags: The FSF version of GCC differs from the Apple version
2629     if enabled altivec; then
2630         nogas=warn
2631         check_cflags -maltivec -mabi=altivec &&
2632         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2633         check_cflags -faltivec
2634
2635         # check if our compiler supports Motorola AltiVec C API
2636         check_cc <<EOF || disable altivec
2637 $inc_altivec_h
2638 int main(void) {
2639     vector signed int v1, v2, v3;
2640     v1 = vec_add(v2,v3);
2641     return 0;
2642 }
2643 EOF
2644
2645         # check if our compiler supports braces for vector declarations
2646         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2647 $inc_altivec_h
2648 int main (void) { (vector int) {1}; return 0; }
2649 EOF
2650     fi
2651
2652 elif enabled sparc; then
2653
2654     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2655         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2656
2657 elif enabled x86; then
2658
2659     enable local_aligned_8 local_aligned_16
2660
2661     # check whether EBP is available on x86
2662     # As 'i' is stored on the stack, this program will crash
2663     # if the base pointer is used to access it because the
2664     # base pointer is cleared in the inline assembly code.
2665     check_exec_crash <<EOF && enable ebp_available
2666     volatile int i=0;
2667     __asm__ volatile (
2668         "xorl %%ebp, %%ebp"
2669     ::: "%ebp");
2670     return i;
2671 EOF
2672
2673     # check whether EBX is available on x86
2674     check_asm ebx_available '""::"b"(0)' &&
2675         check_asm ebx_available '"":::"%ebx"'
2676
2677     # check whether xmm clobbers are supported
2678     check_asm xmm_clobbers '"":::"%xmm0"'
2679
2680     # check whether more than 10 operands are supported
2681     check_cc <<EOF && enable ten_operands
2682 int main(void) {
2683     int x=0;
2684     __asm__ volatile(
2685         ""
2686         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2687     );
2688     return 0;
2689 }
2690 EOF
2691
2692     # check whether binutils is new enough to compile SSSE3/MMX2
2693     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2694     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2695
2696     check_asm bswap '"bswap %%eax" ::: "%eax"'
2697
2698     if ! disabled_any asm mmx yasm; then
2699         if check_cmd $yasmexe --version; then
2700             enabled x86_64 && yasm_extra="-m amd64"
2701             yasm_debug="-g dwarf2"
2702         elif check_cmd nasm -v; then
2703             yasmexe=nasm
2704             yasm_debug="-g -F dwarf"
2705             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2706         fi
2707
2708         YASMFLAGS="-f $objformat $yasm_extra"
2709         enabled pic               && append YASMFLAGS "-DPIC"
2710         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2711         case "$objformat" in
2712             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2713         esac
2714
2715         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2716             die "yasm not found, use --disable-yasm for a crippled build"
2717         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2718     fi
2719
2720     case "$cpu" in
2721         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2722             disable fast_clz
2723         ;;
2724     esac
2725
2726 fi
2727
2728 if enabled asm; then
2729     as=${gas:=$as}
2730     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2731         $nogas "GNU assembler not found, install gas-preprocessor"
2732 fi
2733
2734 check_ldflags -Wl,--as-needed
2735
2736 if check_func dlopen; then
2737     ldl=
2738 elif check_func dlopen -ldl; then
2739     ldl=-ldl
2740 fi
2741
2742 if enabled network; then
2743     check_type "sys/types.h sys/socket.h" socklen_t
2744     check_type netdb.h "struct addrinfo"
2745     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2746     check_type netinet/in.h "struct sockaddr_in6"
2747     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2748     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2749     # Prefer arpa/inet.h over winsock2
2750     if check_header arpa/inet.h ; then
2751         check_func closesocket
2752     elif check_header winsock2.h ; then
2753         check_func_headers winsock2.h closesocket -lws2 && \
2754             network_extralibs="-lws2" || \
2755         { check_func_headers winsock2.h closesocket -lws2_32 && \
2756             network_extralibs="-lws2_32"; }
2757         check_type ws2tcpip.h socklen_t
2758         check_type ws2tcpip.h "struct addrinfo"
2759         check_type ws2tcpip.h "struct ipv6_mreq"
2760         check_type ws2tcpip.h "struct sockaddr_in6"
2761         check_type ws2tcpip.h "struct sockaddr_storage"
2762         check_struct winsock2.h "struct sockaddr" sa_len
2763     else
2764         disable network
2765     fi
2766 fi
2767
2768 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2769 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2770
2771 check_func  fcntl
2772 check_func  fork
2773 check_func  getaddrinfo $network_extralibs
2774 check_func  gethrtime
2775 check_func  getrusage
2776 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2777 check_func  inet_aton $network_extralibs
2778 check_func  isatty
2779 check_func  ${malloc_prefix}memalign            && enable memalign
2780 check_func  mkstemp
2781 check_func  mmap
2782 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2783 check_func  setrlimit
2784 check_func  strerror_r
2785 check_func  strtok_r
2786 check_func_headers conio.h kbhit
2787 check_func_headers io.h setmode
2788 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2789 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2790 check_func_headers windows.h GetProcessTimes
2791 check_func_headers windows.h MapViewOfFile
2792 check_func_headers windows.h VirtualAlloc
2793
2794 check_header dlfcn.h
2795 check_header dxva2api.h
2796 check_header malloc.h
2797 check_header poll.h
2798 check_header sys/mman.h
2799 check_header sys/resource.h
2800 check_header sys/select.h
2801 check_header vdpau/vdpau.h
2802 check_header vdpau/vdpau_x11.h
2803 check_header X11/extensions/XvMClib.h
2804
2805 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2806
2807 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2808      enabled_any $need_memalign ; then
2809     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2810 fi
2811
2812 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2813 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2814
2815 # check for some common methods of building with pthread support
2816 # do this before the optional library checks as some of them require pthreads
2817 if ! disabled pthreads && ! enabled w32threads; then
2818     enable pthreads
2819     if check_func pthread_create; then
2820         :
2821     elif check_func pthread_create -pthread; then
2822         add_cflags -pthread
2823         add_extralibs -pthread
2824     elif check_func pthread_create -pthreads; then
2825         add_cflags -pthreads
2826         add_extralibs -pthreads
2827     elif check_func pthread_create -lpthreadGC2; then
2828         add_extralibs -lpthreadGC2
2829     elif ! check_lib pthread.h pthread_create -lpthread; then
2830         disable pthreads
2831     fi
2832 fi
2833
2834 for thread in $THREADS_LIST; do
2835     if enabled $thread; then
2836         test -n "$thread_type" &&
2837             die "ERROR: Only one thread type must be selected." ||
2838             thread_type="$thread"
2839     fi
2840 done
2841
2842 check_lib math.h sin -lm
2843 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2844
2845 check_mathfunc exp2
2846 check_mathfunc exp2f
2847 check_mathfunc llrint
2848 check_mathfunc llrintf
2849 check_mathfunc log2
2850 check_mathfunc log2f
2851 check_mathfunc lrint
2852 check_mathfunc lrintf
2853 check_mathfunc round
2854 check_mathfunc roundf
2855 check_mathfunc truncf
2856
2857 # these are off by default, so fail if requested and not available
2858 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2859 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2860 enabled libdirac   && require_pkg_config dirac                          \
2861     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2862     "dirac_decoder_init dirac_encoder_init"
2863 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2864 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2865 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2866 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2867 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2868 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2869 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2870 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2871 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2872 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2873 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2874 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2875 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2876 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2877 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2878 enabled libvpx     && {
2879     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2880                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2881     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2882                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2883 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2884                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2885                         die "ERROR: libx264 version must be >= 0.99."; }
2886 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2887 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2888 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2889
2890 # libdc1394 check
2891 if enabled libdc1394; then
2892     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2893         enable libdc1394_2; } ||
2894     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2895         enable libdc1394_1; } ||
2896     die "ERROR: No version of libdc1394 found "
2897 fi
2898
2899 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2900     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2901     enable sdl &&
2902     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2903 fi
2904
2905 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2906
2907 check_header linux/fb.h
2908 check_header linux/videodev.h
2909 check_header linux/videodev2.h
2910 check_header sys/videoio.h
2911
2912 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2913 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2914 # w32api 3.12 had it defined wrong
2915 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2916
2917 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2918 { check_header dev/bktr/ioctl_meteor.h &&
2919   check_header dev/bktr/ioctl_bt848.h; } ||
2920 { check_header machine/ioctl_meteor.h &&
2921   check_header machine/ioctl_bt848.h; } ||
2922 { check_header dev/video/meteor/ioctl_meteor.h &&
2923   check_header dev/video/bktr/ioctl_bt848.h; } ||
2924 check_header dev/ic/bt8xx.h
2925
2926 check_header sndio.h
2927 check_header sys/soundcard.h
2928 check_header soundcard.h
2929
2930 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2931
2932 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2933
2934 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2935
2936 enabled x11grab                         &&
2937 check_header X11/Xlib.h                 &&
2938 check_header X11/extensions/XShm.h      &&
2939 check_header X11/extensions/Xfixes.h    &&
2940 check_func XOpenDisplay -lX11           &&
2941 check_func XShmCreateImage -lX11 -lXext &&
2942 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2943
2944 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2945 check_cpp_condition \
2946     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2947     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2948       disable vdpau; }
2949 fi
2950
2951 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2952
2953 # add some useful compiler flags if supported
2954 check_cflags -Wdeclaration-after-statement
2955 check_cflags -Wall
2956 check_cflags -Wno-parentheses
2957 check_cflags -Wno-switch
2958 check_cflags -Wdisabled-optimization
2959 check_cflags -Wpointer-arith
2960 check_cflags -Wredundant-decls
2961 check_cflags -Wno-pointer-sign
2962 check_cflags -Wcast-qual
2963 check_cflags -Wwrite-strings
2964 check_cflags -Wtype-limits
2965 check_cflags -Wundef
2966 check_cflags -Wmissing-prototypes
2967 enabled extra_warnings && check_cflags -Winline
2968
2969 # add some linker flags
2970 check_ldflags -Wl,--warn-common
2971 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2972 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2973
2974 echo "X{};" > $TMPV
2975 if test_ldflags -Wl,--version-script,$TMPV; then
2976     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2977     check_cc <<EOF && enable symver_asm_label
2978 void ff_foo(void) __asm__ ("av_foo@VERSION");
2979 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2980 EOF
2981     check_cc <<EOF && enable symver_gnu_asm
2982 __asm__(".symver ff_foo,av_foo@VERSION");
2983 void ff_foo(void) {}
2984 EOF
2985 fi
2986
2987 if enabled small; then
2988     add_cflags $size_cflags
2989     optimizations="small"
2990 elif enabled optimizations; then
2991     add_cflags $speed_cflags
2992 else
2993     add_cflags $noopt_cflags
2994 fi
2995 check_cflags -fno-math-errno
2996 check_cflags -fno-signed-zeros
2997
2998 if enabled icc; then
2999     # Just warnings, no remarks
3000     check_cflags -w1
3001     # -wd: Disable following warnings
3002     # 144, 167, 556: -Wno-pointer-sign
3003     # 1292: attribute "foo" ignored
3004     # 10006: ignoring unknown option -fno-signed-zeros
3005     # 10148: ignoring unknown option -Wno-parentheses
3006     # 10156: ignoring option '-W'; no argument required
3007     check_cflags -wd144,167,556,1292,10006,10148,10156
3008     # 11030: Warning unknown option --as-needed
3009     # 10156: ignoring option '-export'; no argument required
3010     check_ldflags -wd10156,11030
3011     # Allow to compile with optimizations
3012     check_ldflags -march=$cpu
3013     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3014     enable ebp_available
3015     if enabled x86_32; then
3016         test ${icc_version%%.*} -ge 11 && \
3017             check_cflags -falign-stack=maintain-16-byte || \
3018             disable aligned_stack
3019     fi
3020 elif enabled ccc; then
3021     # disable some annoying warnings
3022     add_cflags -msg_disable cvtu32to64
3023     add_cflags -msg_disable embedcomment
3024     add_cflags -msg_disable needconstext
3025     add_cflags -msg_disable nomainieee
3026     add_cflags -msg_disable ptrmismatch1
3027     add_cflags -msg_disable unreachcode
3028 elif enabled gcc; then
3029     check_cflags -fno-tree-vectorize
3030     check_cflags -Werror=implicit-function-declaration
3031     check_cflags -Werror=missing-prototypes
3032 elif enabled llvm_gcc; then
3033     check_cflags -mllvm -stack-alignment=16
3034 elif enabled clang; then
3035     check_cflags -mllvm -stack-alignment=16
3036     check_cflags -Qunused-arguments
3037 elif enabled armcc; then
3038     # 2523: use of inline assembler is deprecated
3039     add_cflags -W${armcc_opt},--diag_suppress=2523
3040     add_cflags -W${armcc_opt},--diag_suppress=1207
3041     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3042     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3043 elif enabled tms470; then
3044     add_cflags -pds=824 -pds=837
3045 elif enabled pathscale; then
3046     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3047 fi
3048
3049 enabled_any $THREADS_LIST      && enable threads
3050
3051 check_deps $CONFIG_LIST       \
3052            $CONFIG_EXTRA      \
3053            $HAVE_LIST         \
3054            $DECODER_LIST      \
3055            $ENCODER_LIST      \
3056            $HWACCEL_LIST      \
3057            $PARSER_LIST       \
3058            $BSF_LIST          \
3059            $DEMUXER_LIST      \
3060            $MUXER_LIST        \
3061            $FILTER_LIST       \
3062            $INDEV_LIST        \
3063            $OUTDEV_LIST       \
3064            $PROTOCOL_LIST     \
3065            $ACODEC_TESTS      \
3066            $VCODEC_TESTS      \
3067            $LAVF_TESTS        \
3068            $LAVFI_TESTS       \
3069            $SEEK_TESTS        \
3070
3071 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3072
3073 echo "install prefix            $prefix"
3074 echo "source path               $source_path"
3075 echo "C compiler                $cc"
3076 echo "ARCH                      $arch ($cpu)"
3077 if test "$build_suffix" != ""; then
3078     echo "build suffix              $build_suffix"
3079 fi
3080 if test "$extra_version" != ""; then
3081     echo "version string suffix     $extra_version"
3082 fi
3083 echo "big-endian                ${bigendian-no}"
3084 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3085 if enabled x86; then
3086     echo "yasm                      ${yasm-no}"
3087     echo "MMX enabled               ${mmx-no}"
3088     echo "MMX2 enabled              ${mmx2-no}"
3089     echo "3DNow! enabled            ${amd3dnow-no}"
3090     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3091     echo "SSE enabled               ${sse-no}"
3092     echo "SSSE3 enabled             ${ssse3-no}"
3093     echo "CMOV enabled              ${cmov-no}"
3094     echo "CMOV is fast              ${fast_cmov-no}"
3095     echo "EBX available             ${ebx_available-no}"
3096     echo "EBP available             ${ebp_available-no}"
3097     echo "10 operands supported     ${ten_operands-no}"
3098 fi
3099 if enabled arm; then
3100     echo "ARMv5TE enabled           ${armv5te-no}"
3101     echo "ARMv6 enabled             ${armv6-no}"
3102     echo "ARMv6T2 enabled           ${armv6t2-no}"
3103     echo "ARM VFP enabled           ${armvfp-no}"
3104     echo "IWMMXT enabled            ${iwmmxt-no}"
3105     echo "NEON enabled              ${neon-no}"
3106 fi
3107 if enabled mips; then
3108     echo "MMI enabled               ${mmi-no}"
3109 fi
3110 if enabled ppc; then
3111     echo "AltiVec enabled           ${altivec-no}"
3112     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3113     echo "dcbzl available           ${dcbzl-no}"
3114 fi
3115 if enabled sparc; then
3116     echo "VIS enabled               ${vis-no}"
3117 fi
3118 echo "debug symbols             ${debug-no}"
3119 echo "optimizations             ${optimizations-no}"
3120 echo "static                    ${static-no}"
3121 echo "shared                    ${shared-no}"
3122 echo "postprocessing support    ${postproc-no}"
3123 echo "new filter support        ${avfilter-no}"
3124 echo "network support           ${network-no}"
3125 echo "threading support         ${thread_type-no}"
3126 echo "SDL support               ${sdl-no}"
3127 echo "Sun medialib support      ${mlib-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 "libva enabled             ${vaapi-no}"
3145 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3146 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3147 echo "libvorbis enabled         ${libvorbis-no}"
3148 echo "libvpx enabled            ${libvpx-no}"
3149 echo "libx264 enabled           ${libx264-no}"
3150 echo "libxavs enabled           ${libxavs-no}"
3151 echo "libxvid enabled           ${libxvid-no}"
3152 echo "zlib enabled              ${zlib-no}"
3153 echo "bzlib enabled             ${bzlib-no}"
3154 echo
3155
3156 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3157     echo "Enabled ${type}s:"
3158     eval list=\$$(toupper $type)_LIST
3159     print_enabled '_*' $list | sort | pr -r -3 -t
3160     echo
3161 done
3162
3163 license="LGPL version 2.1 or later"
3164 if enabled nonfree; then
3165     license="nonfree and unredistributable"
3166 elif enabled gplv3; then
3167     license="GPL version 3 or later"
3168 elif enabled lgplv3; then
3169     license="LGPL version 3 or later"
3170 elif enabled gpl; then
3171     license="GPL version 2 or later"
3172 fi
3173
3174 echo "License: $license"
3175
3176 echo "Creating config.mak and config.h..."
3177
3178 # build tree in object directory if source path is different from current one
3179 if enabled source_path_used; then
3180     DIRS="
3181         doc
3182         libavcodec
3183         libavcodec/$arch
3184         libavdevice
3185         libavfilter
3186         libavfilter/$arch
3187         libavformat
3188         libavutil
3189         libavutil/$arch
3190         libpostproc
3191         libswscale
3192         libswscale/$arch
3193         tests
3194         tools
3195     "
3196     FILES="
3197         Makefile
3198         common.mak
3199         subdir.mak
3200         doc/texi2pod.pl
3201         libavcodec/Makefile
3202         libavcodec/${arch}/Makefile
3203         libavdevice/Makefile
3204         libavfilter/Makefile
3205         libavfilter/${arch}/Makefile
3206         libavformat/Makefile
3207         libavutil/Makefile
3208         libpostproc/Makefile
3209         libswscale/Makefile
3210     "
3211     map 'mkdir -p $v' $DIRS;
3212     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3213 fi
3214
3215 config_files="$TMPH config.mak"
3216
3217 cat > config.mak <<EOF
3218 # Automatically generated by configure - do not modify!
3219 ifndef LIBAV_CONFIG_MAK
3220 LIBAV_CONFIG_MAK=1
3221 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3222 prefix=$prefix
3223 LIBDIR=\$(DESTDIR)$libdir
3224 SHLIBDIR=\$(DESTDIR)$shlibdir
3225 INCDIR=\$(DESTDIR)$incdir
3226 BINDIR=\$(DESTDIR)$bindir
3227 DATADIR=\$(DESTDIR)$datadir
3228 MANDIR=\$(DESTDIR)$mandir
3229 SRC_PATH="$source_path"
3230 SRC_PATH_BARE=$source_path
3231 BUILD_ROOT="$PWD"
3232 CC_IDENT=$cc_ident
3233 ARCH=$arch
3234 CC=$cc
3235 AS=$as
3236 LD=$ld
3237 DEPCC=$dep_cc
3238 YASM=$yasmexe
3239 YASMDEP=$yasmexe
3240 AR=$ar
3241 RANLIB=$ranlib
3242 LN_S=$ln_s
3243 CPPFLAGS=$CPPFLAGS
3244 CFLAGS=$CFLAGS
3245 ASFLAGS=$ASFLAGS
3246 CC_O=$CC_O
3247 DLLTOOL=$dlltool
3248 LDFLAGS=$LDFLAGS
3249 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3250 SHFLAGS=$SHFLAGS
3251 YASMFLAGS=$YASMFLAGS
3252 BUILDSUF=$build_suffix
3253 FULLNAME=$FULLNAME
3254 LIBPREF=$LIBPREF
3255 LIBSUF=$LIBSUF
3256 LIBNAME=$LIBNAME
3257 SLIBPREF=$SLIBPREF
3258 SLIBSUF=$SLIBSUF
3259 EXESUF=$EXESUF
3260 EXTRA_VERSION=$extra_version
3261 DEPFLAGS=$DEPFLAGS
3262 CCDEP=$CCDEP
3263 ASDEP=$ASDEP
3264 CC_DEPFLAGS=$CC_DEPFLAGS
3265 AS_DEPFLAGS=$AS_DEPFLAGS
3266 HOSTCC=$host_cc
3267 HOSTCFLAGS=$host_cflags
3268 HOSTEXESUF=$HOSTEXESUF
3269 HOSTLDFLAGS=$host_ldflags
3270 HOSTLIBS=$host_libs
3271 TARGET_EXEC=$target_exec
3272 TARGET_PATH=$target_path
3273 SDL_LIBS=$sdl_libs
3274 SDL_CFLAGS=$sdl_cflags
3275 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3276 EXTRALIBS=$extralibs
3277 INSTALL=install
3278 LIBTARGET=${LIBTARGET}
3279 SLIBNAME=${SLIBNAME}
3280 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3281 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3282 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3283 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3284 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3285 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3286 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3287 EOF
3288
3289 get_version(){
3290     name=$1
3291     file=$source_path/$2
3292     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3293     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3294     lcname=$(tolower $name)
3295     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3296     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3297 }
3298
3299 get_version LIBSWSCALE  libswscale/swscale.h
3300 get_version LIBPOSTPROC libpostproc/postprocess.h
3301 get_version LIBAVCODEC  libavcodec/version.h
3302 get_version LIBAVDEVICE libavdevice/avdevice.h
3303 get_version LIBAVFORMAT libavformat/version.h
3304 get_version LIBAVUTIL   libavutil/avutil.h
3305 get_version LIBAVFILTER libavfilter/avfilter.h
3306
3307 cat > $TMPH <<EOF
3308 /* Automatically generated by configure - do not modify! */
3309 #ifndef LIBAV_CONFIG_H
3310 #define LIBAV_CONFIG_H
3311 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3312 #define LIBAV_LICENSE "$(c_escape $license)"
3313 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3314 #define CC_TYPE "$cc_type"
3315 #define CC_VERSION $cc_version
3316 #define restrict $_restrict
3317 #define EXTERN_PREFIX "${extern_prefix}"
3318 #define EXTERN_ASM ${extern_prefix}
3319 #define SLIBSUF "$SLIBSUF"
3320 EOF
3321
3322 test -n "$malloc_prefix" &&
3323     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3324
3325 if enabled small || disabled optimizations; then
3326     echo "#undef  av_always_inline"  >> $TMPH
3327     if enabled small; then
3328         echo "#define av_always_inline inline"  >> $TMPH
3329     else
3330         echo "#define av_always_inline av_unused"  >> $TMPH
3331     fi
3332 fi
3333
3334 if enabled yasm; then
3335     append config_files $TMPASM
3336     printf '' >$TMPASM
3337 fi
3338
3339 print_config ARCH_   "$config_files" $ARCH_LIST
3340 print_config HAVE_   "$config_files" $HAVE_LIST
3341 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3342                                      $CONFIG_EXTRA      \
3343                                      $DECODER_LIST      \
3344                                      $ENCODER_LIST      \
3345                                      $HWACCEL_LIST      \
3346                                      $PARSER_LIST       \
3347                                      $BSF_LIST          \
3348                                      $DEMUXER_LIST      \
3349                                      $MUXER_LIST        \
3350                                      $FILTER_LIST       \
3351                                      $PROTOCOL_LIST     \
3352                                      $INDEV_LIST        \
3353                                      $OUTDEV_LIST       \
3354
3355 cat >>config.mak <<EOF
3356 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3357 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3358 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3359 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3360 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3361 EOF
3362
3363 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3364 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3365
3366 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3367 cp_if_changed $TMPH config.h
3368 touch .config
3369
3370 enabled yasm && cp_if_changed $TMPASM config.asm
3371
3372 cat > $TMPH <<EOF
3373 /* Generated by ffconf */
3374 #ifndef AVUTIL_AVCONFIG_H
3375 #define AVUTIL_AVCONFIG_H
3376 EOF
3377
3378 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3379
3380 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3381
3382 cp_if_changed $TMPH libavutil/avconfig.h
3383
3384 test -n "$WARNINGS" && printf "\n$WARNINGS"
3385
3386 # build pkg-config files
3387
3388 pkgconfig_generate(){
3389 name=$1
3390 shortname=${name#lib}${build_suffix}
3391 comment=$2
3392 version=$3
3393 libs=$4
3394 requires=$5
3395 enabled ${name#lib} || return 0
3396 cat <<EOF > $name/$name.pc
3397 prefix=$prefix
3398 exec_prefix=\${prefix}
3399 libdir=$libdir
3400 includedir=$incdir
3401
3402 Name: $name
3403 Description: $comment
3404 Version: $version
3405 Requires: $(enabled shared || echo $requires)
3406 Requires.private: $(enabled shared && echo $requires)
3407 Conflicts:
3408 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3409 Libs.private: $(enabled shared && echo $libs)
3410 Cflags: -I\${includedir}
3411 EOF
3412 cat <<EOF > $name/$name-uninstalled.pc
3413 prefix=
3414 exec_prefix=
3415 libdir=\${pcfiledir}
3416 includedir=${source_path}
3417
3418 Name: $name
3419 Description: $comment
3420 Version: $version
3421 Requires: $requires
3422 Conflicts:
3423 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3424 Cflags: -I\${includedir}
3425 EOF
3426 }
3427
3428 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
3429 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3430 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3431 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3432 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3433 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION"
3434 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"