configure

   1 #!/bin/sh
   2 #
   3 # Libav configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --disable-vaapi          disable VAAPI code
 110   --disable-vdpau          disable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-frei0r          enable frei0r video filtering
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libopencv       enable video filtering via libopencv [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libfreetype     enable libfreetype [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --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     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvo_aacenc
 944     libvo_amrwbenc
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudiodsp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     vaapi
 971     vdpau
 972     version3
 973     x11grab
 974     zlib
 975 "
 976
 977 THREADS_LIST='
 978     pthreads
 979     w32threads
 980 '
 981
 982 ARCH_LIST='
 983     alpha
 984     arm
 985     avr32
 986     avr32_ap
 987     avr32_uc
 988     bfin
 989     ia64
 990     m68k
 991     mips
 992     mips64
 993     parisc
 994     ppc
 995     ppc64
 996     s390
 997     sh4
 998     sparc
 999     sparc64
1000     tomi
1001     x86
1002     x86_32
1003     x86_64
1004 '
1005
1006 ARCH_EXT_LIST='
1007     altivec
1008     amd3dnow
1009     amd3dnowext
1010     armv5te
1011     armv6
1012     armv6t2
1013     armvfp
1014     avx
1015     iwmmxt
1016     mmi
1017     mmx
1018     mmx2
1019     neon
1020     ppc4xx
1021     sse
1022     ssse3
1023     vis
1024 '
1025
1026 HAVE_LIST_PUB='
1027     bigendian
1028     fast_unaligned
1029 '
1030
1031 HAVE_LIST="
1032     $ARCH_EXT_LIST
1033     $HAVE_LIST_PUB
1034     $THREADS_LIST
1035     aligned_stack
1036     alsa_asoundlib_h
1037     altivec_h
1038     arpa_inet_h
1039     attribute_may_alias
1040     attribute_packed
1041     bswap
1042     closesocket
1043     cmov
1044     dcbzl
1045     dev_bktr_ioctl_bt848_h
1046     dev_bktr_ioctl_meteor_h
1047     dev_ic_bt8xx_h
1048     dev_video_meteor_ioctl_meteor_h
1049     dev_video_bktr_ioctl_bt848_h
1050     dlfcn_h
1051     dlopen
1052     dos_paths
1053     ebp_available
1054     ebx_available
1055     exp2
1056     exp2f
1057     fast_64bit
1058     fast_clz
1059     fast_cmov
1060     fcntl
1061     fork
1062     getaddrinfo
1063     gethrtime
1064     GetProcessMemoryInfo
1065     GetProcessTimes
1066     getrusage
1067     gnu_as
1068     struct_rusage_ru_maxrss
1069     ibm_asm
1070     inet_aton
1071     inline_asm
1072     isatty
1073     ldbrx
1074     libdc1394_1
1075     libdc1394_2
1076     llrint
1077     llrintf
1078     local_aligned_16
1079     local_aligned_8
1080     localtime_r
1081     log2
1082     log2f
1083     loongson
1084     lrint
1085     lrintf
1086     lzo1x_999_compress
1087     machine_ioctl_bt848_h
1088     machine_ioctl_meteor_h
1089     malloc_h
1090     MapViewOfFile
1091     memalign
1092     mkstemp
1093     mmap
1094     pld
1095     posix_memalign
1096     round
1097     roundf
1098     sdl
1099     sdl_video_size
1100     setmode
1101     sndio_h
1102     socklen_t
1103     soundcard_h
1104     poll_h
1105     setrlimit
1106     strerror_r
1107     strtok_r
1108     struct_addrinfo
1109     struct_ipv6_mreq
1110     struct_sockaddr_in6
1111     struct_sockaddr_sa_len
1112     struct_sockaddr_storage
1113     symver
1114     symver_gnu_asm
1115     symver_asm_label
1116     sys_mman_h
1117     sys_resource_h
1118     sys_select_h
1119     sys_soundcard_h
1120     sys_videoio_h
1121     ten_operands
1122     threads
1123     trunc
1124     truncf
1125     vfp_args
1126     VirtualAlloc
1127     winsock2_h
1128     xform_asm
1129     xmm_clobbers
1130     yasm
1131 "
1132
1133 # options emitted with CONFIG_ prefix but not available on command line
1134 CONFIG_EXTRA="
1135     avutil
1136     gplv3
1137     lgplv3
1138 "
1139
1140 CMDLINE_SELECT="
1141     $ARCH_EXT_LIST
1142     $CONFIG_LIST
1143     $THREADS_LIST
1144     asm
1145     cross_compile
1146     debug
1147     extra_warnings
1148     logging
1149     optimizations
1150     symver
1151     yasm
1152 "
1153
1154 PATHS_LIST='
1155     bindir
1156     datadir
1157     incdir
1158     libdir
1159     mandir
1160     prefix
1161     shlibdir
1162 '
1163
1164 CMDLINE_SET="
1165     $PATHS_LIST
1166     ar
1167     arch
1168     as
1169     build_suffix
1170     cc
1171     cpu
1172     cross_prefix
1173     dep_cc
1174     extra_version
1175     host_cc
1176     host_cflags
1177     host_ldflags
1178     host_libs
1179     host_os
1180     ld
1181     logfile
1182     malloc_prefix
1183     nm
1184     pkg_config
1185     samples
1186     source_path
1187     sysinclude
1188     sysroot
1189     target_exec
1190     target_os
1191     target_path
1192 "
1193
1194 CMDLINE_APPEND="
1195     extra_cflags
1196 "
1197
1198 # code dependency declarations
1199
1200 # architecture extensions
1201
1202 armv5te_deps="arm"
1203 armv6_deps="arm"
1204 armv6t2_deps="arm"
1205 armvfp_deps="arm"
1206 iwmmxt_deps="arm"
1207 neon_deps="arm"
1208
1209 mmi_deps="mips"
1210
1211 altivec_deps="ppc"
1212 ppc4xx_deps="ppc"
1213
1214 vis_deps="sparc"
1215
1216 x86_64_suggest="cmov fast_cmov"
1217 amd3dnow_deps="mmx"
1218 amd3dnowext_deps="amd3dnow"
1219 mmx_deps="x86"
1220 mmx2_deps="mmx"
1221 sse_deps="mmx"
1222 ssse3_deps="sse"
1223 avx_deps="ssse3"
1224
1225 aligned_stack_if_any="ppc x86"
1226 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1227 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1228 fast_unaligned_if_any="armv6 ppc x86"
1229
1230 need_memalign="altivec neon sse"
1231 inline_asm_deps="!tms470"
1232
1233 symver_if_any="symver_asm_label symver_gnu_asm"
1234
1235 # subsystems
1236 dct_select="rdft"
1237 mdct_select="fft"
1238 rdft_select="fft"
1239 mpegaudiodsp_select="dct"
1240
1241 # decoders / encoders / hardware accelerators
1242 aac_decoder_select="mdct sinewin"
1243 aac_encoder_select="mdct sinewin"
1244 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1245 ac3_decoder_select="mdct ac3dsp ac3_parser"
1246 ac3_encoder_select="mdct ac3dsp"
1247 ac3_fixed_encoder_select="mdct ac3dsp"
1248 alac_encoder_select="lpc"
1249 amrnb_decoder_select="lsp"
1250 amrwb_decoder_select="lsp"
1251 atrac1_decoder_select="mdct sinewin"
1252 atrac3_decoder_select="mdct"
1253 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1254 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1255 cavs_decoder_select="golomb"
1256 cook_decoder_select="mdct sinewin"
1257 cscd_decoder_suggest="zlib"
1258 dca_decoder_select="mdct"
1259 dnxhd_encoder_select="aandct"
1260 dxa_decoder_select="zlib"
1261 eac3_decoder_select="ac3_decoder"
1262 eamad_decoder_select="aandct"
1263 eatgq_decoder_select="aandct"
1264 eatqi_decoder_select="aandct"
1265 ffv1_decoder_select="golomb"
1266 flac_decoder_select="golomb"
1267 flac_encoder_select="golomb lpc"
1268 flashsv_decoder_select="zlib"
1269 flashsv_encoder_select="zlib"
1270 flv_decoder_select="h263_decoder"
1271 flv_encoder_select="h263_encoder"
1272 fraps_decoder_select="huffman"
1273 h261_encoder_select="aandct"
1274 h263_decoder_select="h263_parser"
1275 h263_encoder_select="aandct"
1276 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1277 h263i_decoder_select="h263_decoder"
1278 h263p_encoder_select="h263_encoder"
1279 h264_decoder_select="golomb h264dsp h264pred"
1280 h264_dxva2_hwaccel_deps="dxva2api_h"
1281 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1282 h264_vaapi_hwaccel_select="vaapi"
1283 h264_vdpau_decoder_select="vdpau h264_decoder"
1284 imc_decoder_select="fft mdct sinewin"
1285 jpegls_decoder_select="golomb"
1286 jpegls_encoder_select="golomb"
1287 ljpeg_encoder_select="aandct"
1288 loco_decoder_select="golomb"
1289 mjpeg_encoder_select="aandct"
1290 mlp_decoder_select="mlp_parser"
1291 mp1_decoder_select="mpegaudiodsp"
1292 mp2_decoder_select="mpegaudiodsp"
1293 mp3adu_decoder_select="mpegaudiodsp"
1294 mp3_decoder_select="mpegaudiodsp"
1295 mp3on4_decoder_select="mpegaudiodsp"
1296 mp1float_decoder_select="mpegaudiodsp"
1297 mp2float_decoder_select="mpegaudiodsp"
1298 mp3adufloat_decoder_select="mpegaudiodsp"
1299 mp3float_decoder_select="mpegaudiodsp"
1300 mp3on4float_decoder_select="mpegaudiodsp"
1301 mpeg1video_encoder_select="aandct"
1302 mpeg2video_encoder_select="aandct"
1303 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1304 mpeg4_encoder_select="h263_encoder"
1305 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1306 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1307 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1308 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1309 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1310 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1311 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1312 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1313 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1314 msmpeg4v1_decoder_select="h263_decoder"
1315 msmpeg4v1_encoder_select="h263_encoder"
1316 msmpeg4v2_decoder_select="h263_decoder"
1317 msmpeg4v2_encoder_select="h263_encoder"
1318 msmpeg4v3_decoder_select="h263_decoder"
1319 msmpeg4v3_encoder_select="h263_encoder"
1320 nellymoser_decoder_select="mdct sinewin"
1321 nellymoser_encoder_select="mdct sinewin"
1322 png_decoder_select="zlib"
1323 png_encoder_select="zlib"
1324 qcelp_decoder_select="lsp"
1325 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1326 ra_144_encoder_select="lpc"
1327 rv10_decoder_select="h263_decoder"
1328 rv10_encoder_select="h263_encoder"
1329 rv20_decoder_select="h263_decoder"
1330 rv20_encoder_select="h263_encoder"
1331 rv30_decoder_select="golomb h264pred"
1332 rv40_decoder_select="golomb h264pred"
1333 shorten_decoder_select="golomb"
1334 sipr_decoder_select="lsp"
1335 snow_decoder_select="dwt"
1336 snow_encoder_select="aandct dwt"
1337 svq1_encoder_select="aandct"
1338 svq3_decoder_select="golomb h264dsp h264pred"
1339 svq3_decoder_suggest="zlib"
1340 theora_decoder_select="vp3_decoder"
1341 tiff_decoder_suggest="zlib"
1342 tiff_encoder_suggest="zlib"
1343 truehd_decoder_select="mlp_decoder"
1344 tscc_decoder_select="zlib"
1345 twinvq_decoder_select="mdct lsp sinewin"
1346 vc1_decoder_select="h263_decoder"
1347 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1348 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1349 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1350 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1351 vorbis_decoder_select="mdct"
1352 vorbis_encoder_select="mdct"
1353 vp6_decoder_select="huffman"
1354 vp6a_decoder_select="vp6_decoder"
1355 vp6f_decoder_select="vp6_decoder"
1356 vp8_decoder_select="h264pred"
1357 wmapro_decoder_select="mdct sinewin"
1358 wmav1_decoder_select="mdct sinewin"
1359 wmav1_encoder_select="mdct sinewin"
1360 wmav2_decoder_select="mdct sinewin"
1361 wmav2_encoder_select="mdct sinewin"
1362 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1363 wmv1_decoder_select="h263_decoder"
1364 wmv1_encoder_select="h263_encoder"
1365 wmv2_decoder_select="h263_decoder"
1366 wmv2_encoder_select="h263_encoder"
1367 wmv3_decoder_select="vc1_decoder"
1368 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1369 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1370 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1371 zlib_decoder_select="zlib"
1372 zlib_encoder_select="zlib"
1373 zmbv_decoder_select="zlib"
1374 zmbv_encoder_select="zlib"
1375
1376 vaapi_deps="va_va_h"
1377 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1378
1379 # parsers
1380 h264_parser_select="golomb h264dsp h264pred"
1381
1382 # external libraries
1383 libdirac_decoder_deps="libdirac !libschroedinger"
1384 libdirac_encoder_deps="libdirac"
1385 libfaac_encoder_deps="libfaac"
1386 libgsm_decoder_deps="libgsm"
1387 libgsm_encoder_deps="libgsm"
1388 libgsm_ms_decoder_deps="libgsm"
1389 libgsm_ms_encoder_deps="libgsm"
1390 libmp3lame_encoder_deps="libmp3lame"
1391 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1392 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1393 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1394 libopenjpeg_decoder_deps="libopenjpeg"
1395 libschroedinger_decoder_deps="libschroedinger"
1396 libschroedinger_encoder_deps="libschroedinger"
1397 libspeex_decoder_deps="libspeex"
1398 libtheora_encoder_deps="libtheora"
1399 libvo_aacenc_encoder_deps="libvo_aacenc"
1400 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1401 libvorbis_encoder_deps="libvorbis"
1402 libvpx_decoder_deps="libvpx"
1403 libvpx_encoder_deps="libvpx"
1404 libx264_encoder_deps="libx264"
1405 libxavs_encoder_deps="libxavs"
1406 libxvid_encoder_deps="libxvid"
1407
1408 # demuxers / muxers
1409 ac3_demuxer_select="ac3_parser"
1410 asf_stream_muxer_select="asf_muxer"
1411 avisynth_demuxer_deps="avisynth"
1412 dirac_demuxer_select="dirac_parser"
1413 eac3_demuxer_select="ac3_parser"
1414 flac_demuxer_select="flac_parser"
1415 ipod_muxer_select="mov_muxer"
1416 libnut_demuxer_deps="libnut"
1417 libnut_muxer_deps="libnut"
1418 matroska_audio_muxer_select="matroska_muxer"
1419 matroska_demuxer_suggest="zlib bzlib"
1420 mov_demuxer_suggest="zlib"
1421 mp3_demuxer_select="mpegaudio_parser"
1422 mp4_muxer_select="mov_muxer"
1423 mpegtsraw_demuxer_select="mpegts_demuxer"
1424 mxf_d10_muxer_select="mxf_muxer"
1425 ogg_demuxer_select="golomb"
1426 psp_muxer_select="mov_muxer"
1427 rtp_demuxer_select="sdp_demuxer"
1428 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1429 rtsp_demuxer_select="http_protocol rtpdec"
1430 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1431 sap_demuxer_select="sdp_demuxer"
1432 sap_muxer_select="rtp_muxer rtp_protocol"
1433 sdp_demuxer_select="rtpdec"
1434 spdif_muxer_select="aac_parser"
1435 tg2_muxer_select="mov_muxer"
1436 tgp_muxer_select="mov_muxer"
1437 w64_demuxer_deps="wav_demuxer"
1438
1439 # indevs / outdevs
1440 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1441 alsa_outdev_deps="alsa_asoundlib_h"
1442 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1443 dv1394_indev_deps="dv1394 dv_demuxer"
1444 fbdev_indev_deps="linux_fb_h"
1445 jack_indev_deps="jack_jack_h"
1446 libdc1394_indev_deps="libdc1394"
1447 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1448 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1449 sndio_indev_deps="sndio_h"
1450 sndio_outdev_deps="sndio_h"
1451 v4l_indev_deps="linux_videodev_h"
1452 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1453 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1454 vfwcap_indev_extralibs="-lavicap32"
1455 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1456 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1457
1458 # protocols
1459 gopher_protocol_deps="network"
1460 http_protocol_deps="network"
1461 http_protocol_select="tcp_protocol"
1462 mmsh_protocol_select="http_protocol"
1463 mmst_protocol_deps="network"
1464 rtmp_protocol_select="tcp_protocol"
1465 rtp_protocol_select="udp_protocol"
1466 tcp_protocol_deps="network"
1467 udp_protocol_deps="network"
1468
1469 # filters
1470 blackframe_filter_deps="gpl"
1471 cropdetect_filter_deps="gpl"
1472 drawtext_filter_deps="libfreetype"
1473 frei0r_filter_deps="frei0r dlopen strtok_r"
1474 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1475 hqdn3d_filter_deps="gpl"
1476 ocv_filter_deps="libopencv"
1477 scale_filter_deps="swscale"
1478 yadif_filter_deps="gpl"
1479
1480 # libraries
1481 avdevice_deps="avcodec avformat"
1482 avformat_deps="avcodec"
1483 postproc_deps="gpl"
1484
1485 # programs
1486 ffmpeg_deps="avcodec avformat swscale"
1487 ffmpeg_select="buffer_filter"
1488 ffplay_deps="avcodec avformat swscale sdl"
1489 ffplay_select="rdft"
1490 ffprobe_deps="avcodec avformat"
1491 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1492 ffserver_extralibs='$ldl'
1493
1494 doc_deps="texi2html"
1495
1496 # tests
1497
1498 test_deps(){
1499     suf1=$1
1500     suf2=$2
1501     shift 2
1502     for v; do
1503         dep=${v%=*}
1504         tests=${v#*=}
1505         for name in ${tests}; do
1506             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1507         done
1508     done
1509 }
1510
1511 set_ne_test_deps(){
1512     eval ${1}_be_test_deps="bigendian"
1513     eval ${1}_le_test_deps="!bigendian"
1514 }
1515
1516 test_deps _encoder _decoder                                             \
1517     adpcm_g726=g726                                                     \
1518     adpcm_ima_qt                                                        \
1519     adpcm_ima_wav                                                       \
1520     adpcm_ms                                                            \
1521     adpcm_swf                                                           \
1522     adpcm_yamaha=adpcm_yam                                              \
1523     alac                                                                \
1524     asv1                                                                \
1525     asv2                                                                \
1526     bmp                                                                 \
1527     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1528     dvvideo="dv dv50"                                                   \
1529     ffv1                                                                \
1530     flac                                                                \
1531     flashsv                                                             \
1532     flv                                                                 \
1533     gif                                                                 \
1534     h261                                                                \
1535     h263="h263 h263p"                                                   \
1536     huffyuv                                                             \
1537     jpegls                                                              \
1538     mjpeg="jpg mjpeg ljpeg"                                             \
1539     mp2                                                                 \
1540     mpeg1video="mpeg mpeg1b"                                            \
1541     mpeg2video="mpeg2 mpeg2thread"                                      \
1542     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1543     msmpeg4v3=msmpeg4                                                   \
1544     msmpeg4v2                                                           \
1545     pbm=pbmpipe                                                         \
1546     pcx                                                                 \
1547     pgm="pgm pgmpipe"                                                   \
1548     png                                                                 \
1549     ppm="ppm ppmpipe"                                                   \
1550     rawvideo="rgb yuv"                                                  \
1551     roq                                                                 \
1552     rv10                                                                \
1553     rv20                                                                \
1554     sgi                                                                 \
1555     snow="snow snowll"                                                  \
1556     svq1                                                                \
1557     targa=tga                                                           \
1558     tiff                                                                \
1559     wmav1                                                               \
1560     wmav2                                                               \
1561     wmv1                                                                \
1562     wmv2                                                                \
1563
1564 test_deps _muxer _demuxer                                               \
1565     aiff                                                                \
1566     pcm_alaw=alaw                                                       \
1567     asf                                                                 \
1568     au                                                                  \
1569     avi                                                                 \
1570     dv=dv_fmt                                                           \
1571     ffm                                                                 \
1572     flv=flv_fmt                                                         \
1573     gxf                                                                 \
1574     matroska=mkv                                                        \
1575     mmf                                                                 \
1576     mov                                                                 \
1577     pcm_mulaw=mulaw                                                     \
1578     mxf                                                                 \
1579     nut                                                                 \
1580     ogg                                                                 \
1581     rawvideo=pixfmt                                                     \
1582     rm                                                                  \
1583     swf                                                                 \
1584     mpegts=ts                                                           \
1585     voc                                                                 \
1586     wav                                                                 \
1587     yuv4mpegpipe=yuv4mpeg                                               \
1588
1589 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1590 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1591
1592 set_ne_test_deps pixdesc
1593 set_ne_test_deps pixfmts_copy
1594 set_ne_test_deps pixfmts_crop
1595 set_ne_test_deps pixfmts_hflip
1596 set_ne_test_deps pixfmts_null
1597 set_ne_test_deps pixfmts_pad
1598 set_ne_test_deps pixfmts_scale
1599 set_ne_test_deps pixfmts_vflip
1600
1601 # default parameters
1602
1603 logfile="config.log"
1604
1605 # installation paths
1606 prefix_default="/usr/local"
1607 bindir_default='${prefix}/bin'
1608 datadir_default='${prefix}/share/ffmpeg'
1609 incdir_default='${prefix}/include'
1610 libdir_default='${prefix}/lib'
1611 mandir_default='${prefix}/share/man'
1612 shlibdir_default="$libdir_default"
1613
1614 # toolchain
1615 ar_default="ar"
1616 cc_default="gcc"
1617 cc_version=\"unknown\"
1618 host_cc_default="gcc"
1619 ln_s="ln -sf"
1620 nm_default="nm"
1621 objformat="elf"
1622 pkg_config_default=pkg-config
1623 ranlib="ranlib"
1624 yasmexe="yasm"
1625 nogas=":"
1626
1627 nm_opts='-g'
1628
1629 # machine
1630 arch_default=$(uname -m)
1631 cpu="generic"
1632
1633 # OS
1634 target_os_default=$(tolower $(uname -s))
1635 host_os=$target_os_default
1636
1637 # configurable options
1638 enable avcodec
1639 enable avdevice
1640 enable avfilter
1641 enable avformat
1642 enable avutil
1643 enable asm
1644 enable debug
1645 enable doc
1646 enable fastdiv
1647 enable ffmpeg
1648 enable ffplay
1649 enable ffprobe
1650 enable ffserver
1651 enable network
1652 enable optimizations
1653 enable postproc
1654 enable protocols
1655 enable static
1656 enable swscale
1657 enable swscale_alpha
1658
1659 # build settings
1660 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1661 FFSERVERLDFLAGS=-Wl,-E
1662 LIBPREF="lib"
1663 LIBSUF=".a"
1664 FULLNAME='$(NAME)$(BUILDSUF)'
1665 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1666 SLIBPREF="lib"
1667 SLIBSUF=".so"
1668 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1669 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1670 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1671 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1672
1673 CC_O='-o $@'
1674
1675 host_cflags='-D_ISOC99_SOURCE -O3 -g -Wall'
1676 host_libs='-lm'
1677
1678 target_path='$(CURDIR)'
1679
1680 # since the object filename is not given with the -MM flag, the compiler
1681 # is only able to print the basename, and we must add the path ourselves
1682 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1683 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1684
1685 # find source path
1686 source_path="$(dirname "$0")"
1687 enable source_path_used
1688 if test -f configure; then
1689     source_path="$(pwd)"
1690     disable source_path_used
1691 else
1692     source_path="$(cd "$source_path"; pwd)"
1693     echo "$source_path" | grep -q '[[:blank:]]' &&
1694         die "Out of tree builds are impossible with whitespace in source path."
1695     test -e "$source_path/config.h" &&
1696         die "Out of tree builds are impossible with config.h in source dir."
1697 fi
1698
1699 for v in "$@"; do
1700     r=${v#*=}
1701     l=${v%"$r"}
1702     r=$(sh_quote "$r")
1703     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1704 done
1705
1706 find_things(){
1707     thing=$1
1708     pattern=$2
1709     file=$source_path/$3
1710     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1711 }
1712
1713 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1714 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1715 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1716 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1717 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1718 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1719 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1720 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1721 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1722 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1723 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1724
1725 find_tests(){
1726     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1727 }
1728
1729 ACODEC_TESTS=$(find_tests acodec)
1730 VCODEC_TESTS=$(find_tests vsynth1)
1731 LAVF_TESTS=$(find_tests lavf)
1732 LAVFI_TESTS=$(find_tests lavfi)
1733 SEEK_TESTS=$(find_tests seek seek_)
1734
1735 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1736
1737 for n in $COMPONENT_LIST; do
1738     v=$(toupper ${n%s})_LIST
1739     eval enable \$$v
1740     eval ${n}_if_any="\$$v"
1741 done
1742
1743 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1744
1745 die_unknown(){
1746     echo "Unknown option \"$1\"."
1747     echo "See $0 --help for available options."
1748     exit 1
1749 }
1750
1751 show_list() {
1752     suffix=_$1
1753     shift
1754     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1755     exit 0
1756 }
1757
1758 for opt do
1759     optval="${opt#*=}"
1760     case "$opt" in
1761     --extra-ldflags=*) add_ldflags $optval
1762     ;;
1763     --extra-libs=*) add_extralibs $optval
1764     ;;
1765     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1766     ;;
1767     --enable-debug=*) debuglevel="$optval"
1768     ;;
1769     --disable-everything)
1770     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1771     ;;
1772     --enable-*=*|--disable-*=*)
1773     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1774     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1775     eval list=\$$(toupper $thing)_LIST
1776     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1777     $action $(filter "$name" $list)
1778     ;;
1779     --enable-?*|--disable-?*)
1780     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1781     if is_in $option $COMPONENT_LIST; then
1782         test $action = disable && action=unset
1783         eval $action \$$(toupper ${option%s})_LIST
1784     elif is_in $option $CMDLINE_SELECT; then
1785         $action $option
1786     else
1787         die_unknown $opt
1788     fi
1789     ;;
1790     --list-*)
1791         NAME="${opt#--list-}"
1792         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1793         NAME=${NAME%s}
1794         eval show_list $NAME \$$(toupper $NAME)_LIST
1795     ;;
1796     --help|-h) show_help
1797     ;;
1798     *)
1799     optname="${opt%%=*}"
1800     optname="${optname#--}"
1801     optname=$(echo "$optname" | sed 's/-/_/g')
1802     if is_in $optname $CMDLINE_SET; then
1803         eval $optname='$optval'
1804     elif is_in $optname $CMDLINE_APPEND; then
1805         append $optname "$optval"
1806     else
1807          die_unknown $opt
1808     fi
1809     ;;
1810     esac
1811 done
1812
1813 disabled logging && logfile=/dev/null
1814
1815 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1816 set >> $logfile
1817
1818 test -n "$cross_prefix" && enable cross_compile
1819
1820 if enabled cross_compile; then
1821     test -n "$arch" && test -n "$target_os" ||
1822         die "Must specify target arch and OS when cross-compiling"
1823 fi
1824
1825 set_default arch target_os
1826
1827 ar_default="${cross_prefix}${ar_default}"
1828 cc_default="${cross_prefix}${cc_default}"
1829 nm_default="${cross_prefix}${nm_default}"
1830 pkg_config_default="${cross_prefix}${pkg_config_default}"
1831 ranlib="${cross_prefix}${ranlib}"
1832
1833 sysinclude_default="${sysroot}/usr/include"
1834
1835 set_default cc nm pkg_config sysinclude
1836 enabled cross_compile || host_cc_default=$cc
1837 set_default host_cc
1838
1839 if ! $pkg_config --version >/dev/null 2>&1; then
1840     warn "$pkg_config not found, library detection may fail."
1841     pkg_config=false
1842 fi
1843
1844 exesuf() {
1845     case $1 in
1846         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1847     esac
1848 }
1849
1850 EXESUF=$(exesuf $target_os)
1851 HOSTEXESUF=$(exesuf $host_os)
1852
1853 # set temporary file name
1854 : ${TMPDIR:=$TEMPDIR}
1855 : ${TMPDIR:=$TMP}
1856 : ${TMPDIR:=/tmp}
1857
1858 if ! check_cmd mktemp -u XXXXXX; then
1859     # simple replacement for missing mktemp
1860     # NOT SAFE FOR GENERAL USE
1861     mktemp(){
1862         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1863     }
1864 fi
1865
1866 tmpfile(){
1867     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1868         (set -C; exec > $tmp) 2>/dev/null ||
1869         die "Unable to create temporary file in $TMPDIR."
1870     append TMPFILES $tmp
1871     eval $1=$tmp
1872 }
1873
1874 trap 'rm -f -- $TMPFILES' EXIT
1875
1876 tmpfile TMPC  .c
1877 tmpfile TMPE  $EXESUF
1878 tmpfile TMPH  .h
1879 tmpfile TMPO  .o
1880 tmpfile TMPS  .S
1881 tmpfile TMPV  .ver
1882 tmpfile TMPSH .sh
1883 tmpfile TMPASM .asm
1884
1885 unset -f mktemp
1886
1887 chmod +x $TMPE
1888
1889 # make sure we can execute files in $TMPDIR
1890 cat > $TMPSH 2>> $logfile <<EOF
1891 #! /bin/sh
1892 EOF
1893 chmod +x $TMPSH >> $logfile 2>&1
1894 if ! $TMPSH >> $logfile 2>&1; then
1895     cat <<EOF
1896 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1897 variable to another directory and make sure that it is not mounted noexec.
1898 EOF
1899     die "Sanity test failed."
1900 fi
1901
1902 filter_cflags=echo
1903 filter_cppflags=echo
1904 filter_asflags=echo
1905
1906 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1907     cc_type=llvm_gcc
1908     cc_version=__VERSION__
1909     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1910     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1911     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1912     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1913     speed_cflags='-O3'
1914     size_cflags='-Os'
1915 elif $cc -v 2>&1 | grep -qi ^gcc; then
1916     cc_type=gcc
1917     cc_version=__VERSION__
1918     gcc_version=$($cc --version | head -n1)
1919     gcc_basever=$($cc -dumpversion)
1920     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1921     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1922     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1923     if ! $cc -dumpversion | grep -q '^2\.'; then
1924         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1925         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1926     fi
1927     speed_cflags='-O3'
1928     size_cflags='-Os'
1929 elif $cc --version 2>/dev/null | grep -q Intel; then
1930     cc_type=icc
1931     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1932     cc_ident=$($cc --version | head -n1)
1933     icc_version=$($cc -dumpversion)
1934     CC_DEPFLAGS='-MMD'
1935     AS_DEPFLAGS='-MMD'
1936     speed_cflags='-O3'
1937     size_cflags='-Os'
1938     noopt_cflags='-O1'
1939 elif $cc -v 2>&1 | grep -q xlc; then
1940     cc_type=xlc
1941     cc_version="AV_STRINGIFY(__IBMC__)"
1942     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1943     speed_cflags='-O5'
1944     size_cflags='-O5 -qcompact'
1945 elif $cc -V 2>/dev/null | grep -q Compaq; then
1946     cc_type=ccc
1947     cc_version="AV_STRINGIFY(__DECC_VER)"
1948     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1949     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1950     debuglevel=3
1951     add_ldflags -Wl,-z,now # calls to libots crash without this
1952     speed_cflags='-fast'
1953     size_cflags='-O1'
1954 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1955     test -d "$sysroot" || die "No valid sysroot specified."
1956     cc_type=armcc
1957     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1958     cc_ident=$($cc --vsn | head -n1)
1959     armcc_conf="$PWD/armcc.conf"
1960     $cc --arm_linux_configure                 \
1961         --arm_linux_config_file="$armcc_conf" \
1962         --configure_sysroot="$sysroot"        \
1963         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1964         die "Error creating armcc configuration file."
1965     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1966     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1967     as_default="${cross_prefix}gcc"
1968     CC_DEPFLAGS='-MMD'
1969     AS_DEPFLAGS='-MMD'
1970     speed_cflags='-O3'
1971     size_cflags='-Os'
1972     filter_asflags="filter_out -W${armcc_opt}*"
1973 elif $cc -version 2>/dev/null | grep -q TMS470; then
1974     cc_type=tms470
1975     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1976     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1977     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1978     CC_O='-fr=$(@D)'
1979     as_default="${cross_prefix}gcc"
1980     ld_default="${cross_prefix}gcc"
1981     TMPO=$(basename $TMPC .c).o
1982     append TMPFILES $TMPO
1983     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1984     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1985     AS_DEPFLAGS='-MMD'
1986     speed_cflags='-O3 -mf=5'
1987     size_cflags='-O3 -mf=2'
1988     filter_cflags=tms470_flags
1989     tms470_flags(){
1990         for flag; do
1991             case $flag in
1992                 -march=*|-mcpu=*)
1993                     case "${flag#*=}" in
1994                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1995                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1996                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1997                         armv6*|arm11*)          echo -mv=6   ;;
1998                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1999                                                 echo -mv=5e  ;;
2000                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2001                     esac
2002                     ;;
2003                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2004                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2005                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2006                 -msoft-float)   echo --float_support=vfplib       ;;
2007                 -O[0-3]|-mf=*)  echo $flag                        ;;
2008                 -g)             echo -g -mn                       ;;
2009                 -pds=*)         echo $flag                        ;;
2010             esac
2011         done
2012     }
2013 elif $cc -v 2>&1 | grep -q clang; then
2014     cc_type=clang
2015     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2016         cc_version=__clang_version__ || cc_version=__VERSION__
2017     cc_ident=$($cc --version | head -n1)
2018     CC_DEPFLAGS='-MMD'
2019     AS_DEPFLAGS='-MMD'
2020     speed_cflags='-O3'
2021     size_cflags='-Os'
2022 elif $cc -V 2>&1 | grep -q Sun; then
2023     cc_type=suncc
2024     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2025     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2026     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2027     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2028     speed_cflags='-O5'
2029     size_cflags='-O5 -xspace'
2030     filter_cflags=suncc_flags
2031     suncc_flags(){
2032         for flag; do
2033             case $flag in
2034                 -march=*|-mcpu=*)
2035                     case "${flag#*=}" in
2036                         native)                   echo -xtarget=native       ;;
2037                         v9|niagara)               echo -xarch=sparc          ;;
2038                         ultrasparc)               echo -xarch=sparcvis       ;;
2039                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2040                         i586|pentium)             echo -xchip=pentium        ;;
2041                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2042                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2043                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2044                         pentium4*)          echo -xtarget=pentium4           ;;
2045                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2046                         *-sse3)             echo -xarch=sse3                 ;;
2047                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2048                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2049                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2050                         k8|opteron|athlon64|athlon-fx)
2051                                                   echo -xarch=sse2a          ;;
2052                         athlon*)                  echo -xarch=pentium_proa   ;;
2053                     esac
2054                     ;;
2055                 -std=c99)             echo -xc99              ;;
2056                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2057                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2058                 -W*,*)                echo $flag              ;;
2059                 -f*-*|-W*)                                    ;;
2060                 *)                    echo $flag              ;;
2061             esac
2062         done
2063     }
2064 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2065     cc_type=pathscale
2066     cc_version=__PATHSCALE__
2067     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2068     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2069     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070     speed_cflags='-O2'
2071     size_cflags='-Os'
2072 elif $cc -v 2>&1 | grep -q Open64; then
2073     cc_type=open64
2074     cc_version=__OPEN64__
2075     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2076     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2077     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2078     speed_cflags='-O2'
2079     size_cflags='-Os'
2080 fi
2081
2082 test -n "$cc_type" && enable $cc_type ||
2083     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2084
2085 : ${as_default:=$cc}
2086 : ${dep_cc_default:=$cc}
2087 : ${ld_default:=$cc}
2088 set_default ar as dep_cc ld
2089
2090 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2091 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2092
2093 add_cflags $extra_cflags
2094 add_asflags $extra_cflags
2095
2096 if test -n "$sysroot"; then
2097     case "$cc_type" in
2098         gcc|llvm_gcc|clang)
2099             add_cppflags --sysroot="$sysroot"
2100             add_ldflags --sysroot="$sysroot"
2101         ;;
2102         tms470)
2103             add_cppflags -I"$sysinclude"
2104             add_ldflags  --sysroot="$sysroot"
2105         ;;
2106     esac
2107 fi
2108
2109 if test "$cpu" = host; then
2110     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2111
2112     case "$cc_type" in
2113         gcc|llvm_gcc)
2114             check_native(){
2115                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2116                 sed -n "/$1=/{
2117                             s/.*$1=\\([^ ]*\\).*/\\1/
2118                             p
2119                             q
2120                         }" $TMPE
2121             }
2122             cpu=$(check_native -march || check_native -mcpu)
2123         ;;
2124     esac
2125
2126     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2127 fi
2128
2129 # Deal with common $arch aliases
2130 case "$arch" in
2131     arm*)
2132         arch="arm"
2133     ;;
2134     mips|mipsel|IP*)
2135         arch="mips"
2136     ;;
2137     mips64*)
2138         arch="mips"
2139         subarch="mips64"
2140     ;;
2141     parisc|hppa)
2142         arch="parisc"
2143     ;;
2144     parisc64|hppa64)
2145         arch="parisc"
2146         subarch="parisc64"
2147     ;;
2148     "Power Macintosh"|ppc|powerpc)
2149         arch="ppc"
2150     ;;
2151     ppc64|powerpc64)
2152         arch="ppc"
2153         subarch="ppc64"
2154     ;;
2155     s390|s390x)
2156         arch="s390"
2157     ;;
2158     sh4|sh)
2159         arch="sh4"
2160     ;;
2161     sun4u|sparc64)
2162         arch="sparc"
2163         subarch="sparc64"
2164     ;;
2165     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2166         arch="x86"
2167     ;;
2168 esac
2169
2170 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2171 enable $arch
2172
2173 # Add processor-specific flags
2174 if test "$cpu" = generic; then
2175     : do nothing
2176 elif enabled ppc; then
2177
2178     case $(tolower $cpu) in
2179         601|ppc601|powerpc601)
2180             cpuflags="-mcpu=601"
2181             disable altivec
2182         ;;
2183         603*|ppc603*|powerpc603*)
2184             cpuflags="-mcpu=603"
2185             disable altivec
2186         ;;
2187         604*|ppc604*|powerpc604*)
2188             cpuflags="-mcpu=604"
2189             disable altivec
2190         ;;
2191         g3|75*|ppc75*|powerpc75*)
2192             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2193             disable altivec
2194         ;;
2195         g4|745*|ppc745*|powerpc745*)
2196             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2197         ;;
2198         74*|ppc74*|powerpc74*)
2199             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2200         ;;
2201         g5|970|ppc970|powerpc970|power4*)
2202             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2203         ;;
2204         cell)
2205             cpuflags="-mcpu=cell"
2206             enable ldbrx
2207         ;;
2208         e500v2)
2209             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2210             disable altivec
2211         ;;
2212         e500)
2213             cpuflags="-mcpu=8540 -mhard-float"
2214             disable altivec
2215         ;;
2216     esac
2217
2218 elif enabled x86; then
2219
2220     case $cpu in
2221         i[345]86|pentium)
2222             cpuflags="-march=$cpu"
2223             disable mmx
2224         ;;
2225         # targets that do NOT support conditional mov (cmov)
2226         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2227             cpuflags="-march=$cpu"
2228             disable cmov
2229         ;;
2230         # targets that do support conditional mov (cmov)
2231         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2232             cpuflags="-march=$cpu"
2233             enable cmov
2234             enable fast_cmov
2235         ;;
2236         # targets that do support conditional mov but on which it's slow
2237         pentium4|pentium4m|prescott|nocona)
2238             cpuflags="-march=$cpu"
2239             enable cmov
2240             disable fast_cmov
2241         ;;
2242     esac
2243
2244 elif enabled sparc; then
2245
2246     case $cpu in
2247         niagara)
2248             cpuflags="-mcpu=$cpu"
2249             disable vis
2250         ;;
2251         sparc64)
2252             cpuflags="-mcpu=v9"
2253         ;;
2254     esac
2255
2256 elif enabled arm; then
2257
2258     case $cpu in
2259         armv*)
2260             cpuflags="-march=$cpu"
2261             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2262         ;;
2263         *)
2264             cpuflags="-mcpu=$cpu"
2265             case $cpu in
2266                 cortex-a*)                               subarch=armv7a  ;;
2267                 cortex-r*)                               subarch=armv7r  ;;
2268                 cortex-m*)                               subarch=armv7m  ;;
2269                 arm11*)                                  subarch=armv6   ;;
2270                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2271                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2272             esac
2273         ;;
2274     esac
2275
2276 elif enabled alpha; then
2277
2278     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2279
2280 elif enabled bfin; then
2281
2282     cpuflags="-mcpu=$cpu"
2283
2284 elif enabled mips; then
2285
2286     cpuflags="-march=$cpu"
2287
2288 elif enabled avr32; then
2289
2290     case $cpu in
2291         ap7[02]0[0-2])
2292             subarch="avr32_ap"
2293             cpuflags="-mpart=$cpu"
2294         ;;
2295         ap)
2296             subarch="avr32_ap"
2297             cpuflags="-march=$cpu"
2298         ;;
2299         uc3[ab]*)
2300             subarch="avr32_uc"
2301             cpuflags="-mcpu=$cpu"
2302         ;;
2303         uc)
2304             subarch="avr32_uc"
2305             cpuflags="-march=$cpu"
2306         ;;
2307     esac
2308
2309 fi
2310
2311 add_cflags $cpuflags
2312 add_asflags $cpuflags
2313
2314 # compiler sanity check
2315 check_exec <<EOF
2316 int main(void){ return 0; }
2317 EOF
2318 if test "$?" != 0; then
2319     echo "$cc is unable to create an executable file."
2320     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2321         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2322         echo "Only do this if you know what cross compiling means."
2323     fi
2324     die "C compiler test failed."
2325 fi
2326
2327 add_cppflags -D_ISOC99_SOURCE
2328 check_cflags -std=c99
2329 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2330 #include <stdlib.h>
2331 EOF
2332 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2333 #include <stdlib.h>
2334 EOF
2335
2336 check_host_cflags -std=c99
2337
2338 case "$arch" in
2339     alpha|ia64|mips|parisc|sparc)
2340         spic=$shared
2341     ;;
2342     x86)
2343         subarch="x86_32"
2344         check_cc <<EOF && subarch="x86_64"
2345         int test[(int)sizeof(char*) - 7];
2346 EOF
2347         if test "$subarch" = "x86_64"; then
2348             spic=$shared
2349         fi
2350     ;;
2351 esac
2352
2353 enable $subarch
2354 enabled spic && enable pic
2355
2356 # OS specific
2357 case $target_os in
2358     haiku)
2359         prefix_default="/boot/common"
2360         network_extralibs="-lnetwork"
2361         host_libs=
2362         ;;
2363     sunos)
2364         FFSERVERLDFLAGS=""
2365         SHFLAGS='-shared -Wl,-h,$$(@F)'
2366         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2367         network_extralibs="-lsocket -lnsl"
2368         add_cppflags -D__EXTENSIONS__
2369         nm_opts='-P -g'
2370         ;;
2371     netbsd)
2372         disable symver
2373         oss_indev_extralibs="-lossaudio"
2374         oss_outdev_extralibs="-lossaudio"
2375         ;;
2376     openbsd)
2377         enable malloc_aligned
2378         # On OpenBSD 4.5. the compiler does not use PIC unless
2379         # explicitly using -fPIC. Libav builds fine without PIC,
2380         # however the generated executable will not do anything
2381         # (simply quits with exit-code 1, no crash, no output).
2382         # Thus explicitly enable PIC here.
2383         enable pic
2384         disable symver
2385         SHFLAGS='-shared'
2386         oss_indev_extralibs="-lossaudio"
2387         oss_outdev_extralibs="-lossaudio"
2388         ;;
2389     dragonfly)
2390         enable malloc_aligned
2391         disable symver
2392         ;;
2393     freebsd)
2394         enable malloc_aligned
2395         ;;
2396     bsd/os)
2397         add_extralibs -lpoll -lgnugetopt
2398         ;;
2399     darwin)
2400         enable malloc_aligned
2401         gas="gas-preprocessor.pl $cc"
2402         enabled ppc && add_asflags -force_cpusubtype_ALL
2403         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2404         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2405         add_ldflags -Wl,-dynamic,-search_paths_first
2406         SLIBSUF=".dylib"
2407         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2408         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2409         FFSERVERLDFLAGS=-Wl,-bind_at_load
2410         objformat="macho"
2411         enabled x86_64 && objformat="macho64"
2412         enabled_any pic shared ||
2413             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2414         ;;
2415     mingw32*)
2416         if test $target_os = "mingw32ce"; then
2417             disable network
2418         else
2419             target_os=mingw32
2420         fi
2421         LIBTARGET=i386
2422         if enabled x86_64; then
2423             enable malloc_aligned
2424             LIBTARGET="i386:x86-64"
2425         elif enabled arm; then
2426             LIBTARGET=arm-wince
2427         fi
2428         shlibdir_default="$bindir_default"
2429         SLIBPREF=""
2430         SLIBSUF=".dll"
2431         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2432         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2433         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2434         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2435             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2436             install -d "$(LIBDIR)"; \
2437             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2438         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2439         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'
2440         objformat="win32"
2441         dlltool="${cross_prefix}dlltool"
2442         enable dos_paths
2443         check_cflags -fno-common
2444         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2445                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2446                 die "ERROR: MinGW runtime version must be >= 3.15."
2447         add_cppflags -U__STRICT_ANSI__
2448         ;;
2449     cygwin*)
2450         target_os=cygwin
2451         shlibdir_default="$bindir_default"
2452         SLIBPREF="cyg"
2453         SLIBSUF=".dll"
2454         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2455         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2456         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2457         objformat="win32"
2458         enable dos_paths
2459         check_cflags -fno-common
2460         ;;
2461     *-dos|freedos|opendos)
2462         network_extralibs="-lsocket"
2463         objformat="coff"
2464         enable dos_paths
2465         ;;
2466     linux)
2467         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2468         enable dv1394
2469         ;;
2470     irix*)
2471         target_os=irix
2472         ranlib="echo ignoring ranlib"
2473         ;;
2474     os/2*)
2475         ln_s="cp -f"
2476         objformat="aout"
2477         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2478         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2479         FFSERVERLDFLAGS=""
2480         LIBSUF="_s.a"
2481         SLIBPREF=""
2482         SLIBSUF=".dll"
2483         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2484         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2485         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2486           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2487           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2488           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2489           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2490           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2491         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2492           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2493         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2494         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2495         enable dos_paths
2496         ;;
2497     gnu/kfreebsd)
2498         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2499         ;;
2500     gnu)
2501         ;;
2502     qnx)
2503         add_cppflags -D_QNX_SOURCE
2504         network_extralibs="-lsocket"
2505         ;;
2506     symbian)
2507         SLIBSUF=".dll"
2508         enable dos_paths
2509         add_cflags --include=$sysinclude/gcce/gcce.h
2510         ;;
2511     none)
2512         ;;
2513     *)
2514         die "Unknown OS '$target_os'."
2515         ;;
2516 esac
2517
2518 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2519
2520 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2521
2522 set_default $PATHS_LIST
2523
2524 # we need to build at least one lib type
2525 if ! enabled_any static shared; then
2526     cat <<EOF
2527 At least one library type must be built.
2528 Specify --enable-static to build the static libraries or --enable-shared to
2529 build the shared libraries as well. To only build the shared libraries specify
2530 --disable-static in addition to --enable-shared.
2531 EOF
2532     exit 1;
2533 fi
2534
2535 disabled static && LIBNAME=""
2536
2537 die_license_disabled() {
2538     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2539 }
2540
2541 die_license_disabled gpl libx264
2542 die_license_disabled gpl libxavs
2543 die_license_disabled gpl libxvid
2544 die_license_disabled gpl x11grab
2545
2546 die_license_disabled nonfree libfaac
2547
2548 die_license_disabled version3 libopencore_amrnb
2549 die_license_disabled version3 libopencore_amrwb
2550 die_license_disabled version3 libvo_aacenc
2551 die_license_disabled version3 libvo_amrwbenc
2552
2553 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2554
2555 disabled optimizations || check_cflags -fomit-frame-pointer
2556
2557 enable_pic() {
2558     enable pic
2559     add_cppflags -DPIC
2560     add_cflags   -fPIC
2561     add_asflags  -fPIC
2562 }
2563
2564 enabled pic && enable_pic
2565
2566 check_cc <<EOF || die "Symbol mangling check failed."
2567 int ff_extern;
2568 EOF
2569 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2570 extern_prefix=${sym%%ff_extern*}
2571
2572 check_cc <<EOF && enable inline_asm
2573 void foo(void) { __asm__ volatile ("" ::); }
2574 EOF
2575
2576 _restrict=
2577 for restrict_keyword in restrict __restrict__ __restrict; do
2578     check_cc <<EOF && _restrict=$restrict_keyword && break
2579 void foo(char * $restrict_keyword p);
2580 EOF
2581 done
2582
2583 check_cc <<EOF && enable attribute_packed
2584 struct { int x; } __attribute__((packed)) x;
2585 EOF
2586
2587 check_cc <<EOF && enable attribute_may_alias
2588 union { int x; } __attribute__((may_alias)) x;
2589 EOF
2590
2591 check_cc <<EOF || die "endian test failed"
2592 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2593 EOF
2594 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2595
2596 if enabled alpha; then
2597
2598     check_cflags -mieee
2599
2600 elif enabled arm; then
2601
2602     check_cflags -marm
2603     nogas=die
2604
2605     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2606         enable vfp_args
2607     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2608         case "${cross_prefix:-$cc}" in
2609             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2610             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2611 __asm__ (".eabi_attribute 28, 1");
2612 int main(void) { return 0; }
2613 EOF
2614         esac
2615         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2616     fi
2617
2618     # We have to check if pld is a nop and disable it.
2619     check_asm pld '"pld [r0]"'
2620
2621     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2622     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2623     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2624     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2625     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2626     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2627
2628     enabled_all armv6t2 shared !pic && enable_pic
2629
2630 elif enabled mips; then
2631
2632     check_asm loongson '"dmult.g $1, $2, $3"'
2633     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2634
2635 elif enabled ppc; then
2636
2637     enable local_aligned_8 local_aligned_16
2638
2639     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2640     check_asm ibm_asm   '"add 0, 0, 0"'
2641     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2642     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2643
2644     # AltiVec flags: The FSF version of GCC differs from the Apple version
2645     if enabled altivec; then
2646         nogas=warn
2647         check_cflags -maltivec -mabi=altivec &&
2648         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2649         check_cflags -faltivec
2650
2651         # check if our compiler supports Motorola AltiVec C API
2652         check_cc <<EOF || disable altivec
2653 $inc_altivec_h
2654 int main(void) {
2655     vector signed int v1, v2, v3;
2656     v1 = vec_add(v2,v3);
2657     return 0;
2658 }
2659 EOF
2660
2661         # check if our compiler supports braces for vector declarations
2662         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2663 $inc_altivec_h
2664 int main (void) { (vector int) {1}; return 0; }
2665 EOF
2666     fi
2667
2668 elif enabled sparc; then
2669
2670     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2671         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2672
2673 elif enabled x86; then
2674
2675     enable local_aligned_8 local_aligned_16
2676
2677     # check whether EBP is available on x86
2678     # As 'i' is stored on the stack, this program will crash
2679     # if the base pointer is used to access it because the
2680     # base pointer is cleared in the inline assembly code.
2681     check_exec_crash <<EOF && enable ebp_available
2682     volatile int i=0;
2683     __asm__ volatile (
2684         "xorl %%ebp, %%ebp"
2685     ::: "%ebp");
2686     return i;
2687 EOF
2688
2689     # check whether EBX is available on x86
2690     check_asm ebx_available '""::"b"(0)' &&
2691         check_asm ebx_available '"":::"%ebx"'
2692
2693     # check whether xmm clobbers are supported
2694     check_asm xmm_clobbers '"":::"%xmm0"'
2695
2696     # check whether more than 10 operands are supported
2697     check_cc <<EOF && enable ten_operands
2698 int main(void) {
2699     int x=0;
2700     __asm__ volatile(
2701         ""
2702         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2703     );
2704     return 0;
2705 }
2706 EOF
2707
2708     # check whether binutils is new enough to compile SSSE3/MMX2
2709     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2710     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2711
2712     check_asm bswap '"bswap %%eax" ::: "%eax"'
2713
2714     if ! disabled_any asm mmx yasm; then
2715         if check_cmd $yasmexe --version; then
2716             enabled x86_64 && yasm_extra="-m amd64"
2717             yasm_debug="-g dwarf2"
2718         elif check_cmd nasm -v; then
2719             yasmexe=nasm
2720             yasm_debug="-g -F dwarf"
2721             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2722         fi
2723
2724         YASMFLAGS="-f $objformat $yasm_extra"
2725         enabled pic               && append YASMFLAGS "-DPIC"
2726         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2727         case "$objformat" in
2728             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2729         esac
2730
2731         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2732             die "yasm not found, use --disable-yasm for a crippled build"
2733         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2734     fi
2735
2736     case "$cpu" in
2737         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2738             disable fast_clz
2739         ;;
2740     esac
2741
2742 fi
2743
2744 if enabled asm; then
2745     as=${gas:=$as}
2746     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2747         $nogas "GNU assembler not found, install gas-preprocessor"
2748 fi
2749
2750 check_ldflags -Wl,--as-needed
2751
2752 if check_func dlopen; then
2753     ldl=
2754 elif check_func dlopen -ldl; then
2755     ldl=-ldl
2756 fi
2757
2758 if enabled network; then
2759     check_type "sys/types.h sys/socket.h" socklen_t
2760     check_type netdb.h "struct addrinfo"
2761     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2762     check_type netinet/in.h "struct sockaddr_in6"
2763     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2764     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2765     # Prefer arpa/inet.h over winsock2
2766     if check_header arpa/inet.h ; then
2767         check_func closesocket
2768     elif check_header winsock2.h ; then
2769         check_func_headers winsock2.h closesocket -lws2 && \
2770             network_extralibs="-lws2" || \
2771         { check_func_headers winsock2.h closesocket -lws2_32 && \
2772             network_extralibs="-lws2_32"; }
2773         check_type ws2tcpip.h socklen_t
2774         check_type ws2tcpip.h "struct addrinfo"
2775         check_type ws2tcpip.h "struct ipv6_mreq"
2776         check_type ws2tcpip.h "struct sockaddr_in6"
2777         check_type ws2tcpip.h "struct sockaddr_storage"
2778         check_struct winsock2.h "struct sockaddr" sa_len
2779     else
2780         disable network
2781     fi
2782 fi
2783
2784 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2785 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2786
2787 check_func  fcntl
2788 check_func  fork
2789 check_func  getaddrinfo $network_extralibs
2790 check_func  gethrtime
2791 check_func  getrusage
2792 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2793 check_func  inet_aton $network_extralibs
2794 check_func  isatty
2795 check_func  localtime_r
2796 check_func  ${malloc_prefix}memalign            && enable memalign
2797 check_func  mkstemp
2798 check_func  mmap
2799 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2800 check_func  setrlimit
2801 check_func  strerror_r
2802 check_func  strtok_r
2803 check_func_headers io.h setmode
2804 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2805 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2806 check_func_headers windows.h GetProcessTimes
2807 check_func_headers windows.h MapViewOfFile
2808 check_func_headers windows.h VirtualAlloc
2809
2810 check_header dlfcn.h
2811 check_header dxva2api.h
2812 check_header malloc.h
2813 check_header poll.h
2814 check_header sys/mman.h
2815 check_header sys/resource.h
2816 check_header sys/select.h
2817 check_header vdpau/vdpau.h
2818 check_header vdpau/vdpau_x11.h
2819 check_header X11/extensions/XvMClib.h
2820
2821 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2822
2823 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2824      enabled_any $need_memalign ; then
2825     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2826 fi
2827
2828 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2829 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2830
2831 # check for some common methods of building with pthread support
2832 # do this before the optional library checks as some of them require pthreads
2833 if ! disabled pthreads && ! enabled w32threads; then
2834     enable pthreads
2835     if check_func pthread_create; then
2836         :
2837     elif check_func pthread_create -pthread; then
2838         add_cflags -pthread
2839         add_extralibs -pthread
2840     elif check_func pthread_create -pthreads; then
2841         add_cflags -pthreads
2842         add_extralibs -pthreads
2843     elif check_func pthread_create -lpthreadGC2; then
2844         add_extralibs -lpthreadGC2
2845     elif ! check_lib pthread.h pthread_create -lpthread; then
2846         disable pthreads
2847     fi
2848 fi
2849
2850 for thread in $THREADS_LIST; do
2851     if enabled $thread; then
2852         test -n "$thread_type" &&
2853             die "ERROR: Only one thread type must be selected." ||
2854             thread_type="$thread"
2855     fi
2856 done
2857
2858 check_lib math.h sin -lm && LIBM="-lm"
2859 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2860
2861 check_mathfunc exp2
2862 check_mathfunc exp2f
2863 check_mathfunc llrint
2864 check_mathfunc llrintf
2865 check_mathfunc log2
2866 check_mathfunc log2f
2867 check_mathfunc lrint
2868 check_mathfunc lrintf
2869 check_mathfunc round
2870 check_mathfunc roundf
2871 check_mathfunc trunc
2872 check_mathfunc truncf
2873
2874 # these are off by default, so fail if requested and not available
2875 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2876 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2877 enabled libdirac   && require_pkg_config dirac                          \
2878     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2879     "dirac_decoder_init dirac_encoder_init"
2880 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2881 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2882 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2883 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2884 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2885 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2886 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2887 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2888 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2889 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2890 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2891 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2892 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2893 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2894 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2895 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2896 enabled libvpx     && {
2897     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2898                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2899     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2900                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2901 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2902                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2903                         die "ERROR: libx264 version must be >= 0.115."; }
2904 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2905 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2906 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2907
2908 # libdc1394 check
2909 if enabled libdc1394; then
2910     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2911         enable libdc1394_2; } ||
2912     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2913         enable libdc1394_1; } ||
2914     die "ERROR: No version of libdc1394 found "
2915 fi
2916
2917 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2918     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2919     enable sdl &&
2920     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2921 fi
2922
2923 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2924
2925 check_header linux/fb.h
2926 check_header linux/videodev.h
2927 check_header linux/videodev2.h
2928 check_header sys/videoio.h
2929
2930 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2931 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2932 # w32api 3.12 had it defined wrong
2933 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2934
2935 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2936 { check_header dev/bktr/ioctl_meteor.h &&
2937   check_header dev/bktr/ioctl_bt848.h; } ||
2938 { check_header machine/ioctl_meteor.h &&
2939   check_header machine/ioctl_bt848.h; } ||
2940 { check_header dev/video/meteor/ioctl_meteor.h &&
2941   check_header dev/video/bktr/ioctl_bt848.h; } ||
2942 check_header dev/ic/bt8xx.h
2943
2944 check_header sndio.h
2945 check_header sys/soundcard.h
2946 check_header soundcard.h
2947
2948 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2949
2950 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2951
2952 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2953
2954 enabled x11grab                         &&
2955 check_header X11/Xlib.h                 &&
2956 check_header X11/extensions/XShm.h      &&
2957 check_header X11/extensions/Xfixes.h    &&
2958 check_func XOpenDisplay -lX11           &&
2959 check_func XShmCreateImage -lX11 -lXext &&
2960 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2961
2962 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2963 check_cpp_condition \
2964     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2965     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2966       disable vdpau; }
2967 fi
2968
2969 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2970
2971 # add some useful compiler flags if supported
2972 check_cflags -Wdeclaration-after-statement
2973 check_cflags -Wall
2974 check_cflags -Wno-parentheses
2975 check_cflags -Wno-switch
2976 check_cflags -Wdisabled-optimization
2977 check_cflags -Wpointer-arith
2978 check_cflags -Wredundant-decls
2979 check_cflags -Wno-pointer-sign
2980 check_cflags -Wcast-qual
2981 check_cflags -Wwrite-strings
2982 check_cflags -Wtype-limits
2983 check_cflags -Wundef
2984 check_cflags -Wmissing-prototypes
2985 enabled extra_warnings && check_cflags -Winline
2986
2987 # add some linker flags
2988 check_ldflags -Wl,--warn-common
2989 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'
2990 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2991
2992 echo "X{};" > $TMPV
2993 if test_ldflags -Wl,--version-script,$TMPV; then
2994     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2995     check_cc <<EOF && enable symver_asm_label
2996 void ff_foo(void) __asm__ ("av_foo@VERSION");
2997 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2998 EOF
2999     check_cc <<EOF && enable symver_gnu_asm
3000 __asm__(".symver ff_foo,av_foo@VERSION");
3001 void ff_foo(void) {}
3002 EOF
3003 fi
3004
3005 if enabled small; then
3006     add_cflags $size_cflags
3007     optimizations="small"
3008 elif enabled optimizations; then
3009     add_cflags $speed_cflags
3010 else
3011     add_cflags $noopt_cflags
3012 fi
3013 check_cflags -fno-math-errno
3014 check_cflags -fno-signed-zeros
3015
3016 if enabled icc; then
3017     # Just warnings, no remarks
3018     check_cflags -w1
3019     # -wd: Disable following warnings
3020     # 144, 167, 556: -Wno-pointer-sign
3021     # 1292: attribute "foo" ignored
3022     # 10006: ignoring unknown option -fno-signed-zeros
3023     # 10148: ignoring unknown option -Wno-parentheses
3024     # 10156: ignoring option '-W'; no argument required
3025     check_cflags -wd144,167,556,1292,10006,10148,10156
3026     # 11030: Warning unknown option --as-needed
3027     # 10156: ignoring option '-export'; no argument required
3028     check_ldflags -wd10156,11030
3029     # Allow to compile with optimizations
3030     check_ldflags -march=$cpu
3031     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3032     enable ebp_available
3033     if enabled x86_32; then
3034         test ${icc_version%%.*} -ge 11 && \
3035             check_cflags -falign-stack=maintain-16-byte || \
3036             disable aligned_stack
3037     fi
3038 elif enabled ccc; then
3039     # disable some annoying warnings
3040     add_cflags -msg_disable cvtu32to64
3041     add_cflags -msg_disable embedcomment
3042     add_cflags -msg_disable needconstext
3043     add_cflags -msg_disable nomainieee
3044     add_cflags -msg_disable ptrmismatch1
3045     add_cflags -msg_disable unreachcode
3046 elif enabled gcc; then
3047     check_cflags -fno-tree-vectorize
3048     check_cflags -Werror=implicit-function-declaration
3049     check_cflags -Werror=missing-prototypes
3050 elif enabled llvm_gcc; then
3051     check_cflags -mllvm -stack-alignment=16
3052 elif enabled clang; then
3053     check_cflags -mllvm -stack-alignment=16
3054     check_cflags -Qunused-arguments
3055 elif enabled armcc; then
3056     # 2523: use of inline assembler is deprecated
3057     add_cflags -W${armcc_opt},--diag_suppress=2523
3058     add_cflags -W${armcc_opt},--diag_suppress=1207
3059     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3060     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3061 elif enabled tms470; then
3062     add_cflags -pds=824 -pds=837
3063 elif enabled pathscale; then
3064     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3065 fi
3066
3067 enabled_any $THREADS_LIST      && enable threads
3068
3069 check_deps $CONFIG_LIST       \
3070            $CONFIG_EXTRA      \
3071            $HAVE_LIST         \
3072            $DECODER_LIST      \
3073            $ENCODER_LIST      \
3074            $HWACCEL_LIST      \
3075            $PARSER_LIST       \
3076            $BSF_LIST          \
3077            $DEMUXER_LIST      \
3078            $MUXER_LIST        \
3079            $FILTER_LIST       \
3080            $INDEV_LIST        \
3081            $OUTDEV_LIST       \
3082            $PROTOCOL_LIST     \
3083            $ACODEC_TESTS      \
3084            $VCODEC_TESTS      \
3085            $LAVF_TESTS        \
3086            $LAVFI_TESTS       \
3087            $SEEK_TESTS        \
3088
3089 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3090
3091 echo "install prefix            $prefix"
3092 echo "source path               $source_path"
3093 echo "C compiler                $cc"
3094 echo "ARCH                      $arch ($cpu)"
3095 if test "$build_suffix" != ""; then
3096     echo "build suffix              $build_suffix"
3097 fi
3098 if test "$extra_version" != ""; then
3099     echo "version string suffix     $extra_version"
3100 fi
3101 echo "big-endian                ${bigendian-no}"
3102 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3103 if enabled x86; then
3104     echo "yasm                      ${yasm-no}"
3105     echo "MMX enabled               ${mmx-no}"
3106     echo "MMX2 enabled              ${mmx2-no}"
3107     echo "3DNow! enabled            ${amd3dnow-no}"
3108     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3109     echo "SSE enabled               ${sse-no}"
3110     echo "SSSE3 enabled             ${ssse3-no}"
3111     echo "AVX enabled               ${avx-no}"
3112     echo "CMOV enabled              ${cmov-no}"
3113     echo "CMOV is fast              ${fast_cmov-no}"
3114     echo "EBX available             ${ebx_available-no}"
3115     echo "EBP available             ${ebp_available-no}"
3116     echo "10 operands supported     ${ten_operands-no}"
3117 fi
3118 if enabled arm; then
3119     echo "ARMv5TE enabled           ${armv5te-no}"
3120     echo "ARMv6 enabled             ${armv6-no}"
3121     echo "ARMv6T2 enabled           ${armv6t2-no}"
3122     echo "ARM VFP enabled           ${armvfp-no}"
3123     echo "IWMMXT enabled            ${iwmmxt-no}"
3124     echo "NEON enabled              ${neon-no}"
3125 fi
3126 if enabled mips; then
3127     echo "MMI enabled               ${mmi-no}"
3128 fi
3129 if enabled ppc; then
3130     echo "AltiVec enabled           ${altivec-no}"
3131     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3132     echo "dcbzl available           ${dcbzl-no}"
3133 fi
3134 if enabled sparc; then
3135     echo "VIS enabled               ${vis-no}"
3136 fi
3137 echo "debug symbols             ${debug-no}"
3138 echo "optimizations             ${optimizations-no}"
3139 echo "static                    ${static-no}"
3140 echo "shared                    ${shared-no}"
3141 echo "postprocessing support    ${postproc-no}"
3142 echo "new filter support        ${avfilter-no}"
3143 echo "network support           ${network-no}"
3144 echo "threading support         ${thread_type-no}"
3145 echo "SDL support               ${sdl-no}"
3146 echo "Sun medialib support      ${mlib-no}"
3147 echo "AVISynth enabled          ${avisynth-no}"
3148 echo "frei0r enabled            ${frei0r-no}"
3149 echo "libdc1394 support         ${libdc1394-no}"
3150 echo "libdirac enabled          ${libdirac-no}"
3151 echo "libfaac enabled           ${libfaac-no}"
3152 echo "libgsm enabled            ${libgsm-no}"
3153 echo "libmp3lame enabled        ${libmp3lame-no}"
3154 echo "libnut enabled            ${libnut-no}"
3155 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3156 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3157 echo "libopencv support         ${libopencv-no}"
3158 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3159 echo "librtmp enabled           ${librtmp-no}"
3160 echo "libschroedinger enabled   ${libschroedinger-no}"
3161 echo "libspeex enabled          ${libspeex-no}"
3162 echo "libtheora enabled         ${libtheora-no}"
3163 echo "libva enabled             ${vaapi-no}"
3164 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3165 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3166 echo "libvorbis enabled         ${libvorbis-no}"
3167 echo "libvpx enabled            ${libvpx-no}"
3168 echo "libx264 enabled           ${libx264-no}"
3169 echo "libxavs enabled           ${libxavs-no}"
3170 echo "libxvid enabled           ${libxvid-no}"
3171 echo "zlib enabled              ${zlib-no}"
3172 echo "bzlib enabled             ${bzlib-no}"
3173 echo
3174
3175 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3176     echo "Enabled ${type}s:"
3177     eval list=\$$(toupper $type)_LIST
3178     print_enabled '_*' $list | sort | pr -r -3 -t
3179     echo
3180 done
3181
3182 license="LGPL version 2.1 or later"
3183 if enabled nonfree; then
3184     license="nonfree and unredistributable"
3185 elif enabled gplv3; then
3186     license="GPL version 3 or later"
3187 elif enabled lgplv3; then
3188     license="LGPL version 3 or later"
3189 elif enabled gpl; then
3190     license="GPL version 2 or later"
3191 fi
3192
3193 echo "License: $license"
3194
3195 echo "Creating config.mak and config.h..."
3196
3197 # build tree in object directory if source path is different from current one
3198 if enabled source_path_used; then
3199     DIRS="
3200         doc
3201         libavcodec
3202         libavcodec/$arch
3203         libavdevice
3204         libavfilter
3205         libavfilter/$arch
3206         libavformat
3207         libavutil
3208         libavutil/$arch
3209         libpostproc
3210         libswscale
3211         libswscale/$arch
3212         tests
3213         tools
3214     "
3215     FILES="
3216         Makefile
3217         common.mak
3218         subdir.mak
3219         doc/texi2pod.pl
3220         libavcodec/Makefile
3221         libavcodec/${arch}/Makefile
3222         libavdevice/Makefile
3223         libavfilter/Makefile
3224         libavfilter/${arch}/Makefile
3225         libavformat/Makefile
3226         libavutil/Makefile
3227         libpostproc/Makefile
3228         libswscale/Makefile
3229     "
3230     map 'mkdir -p $v' $DIRS;
3231     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3232 fi
3233
3234 config_files="$TMPH config.mak"
3235
3236 cat > config.mak <<EOF
3237 # Automatically generated by configure - do not modify!
3238 ifndef LIBAV_CONFIG_MAK
3239 LIBAV_CONFIG_MAK=1
3240 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3241 prefix=$prefix
3242 LIBDIR=\$(DESTDIR)$libdir
3243 SHLIBDIR=\$(DESTDIR)$shlibdir
3244 INCDIR=\$(DESTDIR)$incdir
3245 BINDIR=\$(DESTDIR)$bindir
3246 DATADIR=\$(DESTDIR)$datadir
3247 MANDIR=\$(DESTDIR)$mandir
3248 SRC_PATH="$source_path"
3249 SRC_PATH_BARE=$source_path
3250 BUILD_ROOT="$PWD"
3251 CC_IDENT=$cc_ident
3252 ARCH=$arch
3253 CC=$cc
3254 AS=$as
3255 LD=$ld
3256 DEPCC=$dep_cc
3257 YASM=$yasmexe
3258 YASMDEP=$yasmexe
3259 AR=$ar
3260 RANLIB=$ranlib
3261 LN_S=$ln_s
3262 CPPFLAGS=$CPPFLAGS
3263 CFLAGS=$CFLAGS
3264 ASFLAGS=$ASFLAGS
3265 CC_O=$CC_O
3266 DLLTOOL=$dlltool
3267 LDFLAGS=$LDFLAGS
3268 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3269 SHFLAGS=$SHFLAGS
3270 YASMFLAGS=$YASMFLAGS
3271 BUILDSUF=$build_suffix
3272 FULLNAME=$FULLNAME
3273 LIBPREF=$LIBPREF
3274 LIBSUF=$LIBSUF
3275 LIBNAME=$LIBNAME
3276 SLIBPREF=$SLIBPREF
3277 SLIBSUF=$SLIBSUF
3278 EXESUF=$EXESUF
3279 EXTRA_VERSION=$extra_version
3280 DEPFLAGS=$DEPFLAGS
3281 CCDEP=$CCDEP
3282 ASDEP=$ASDEP
3283 CC_DEPFLAGS=$CC_DEPFLAGS
3284 AS_DEPFLAGS=$AS_DEPFLAGS
3285 HOSTCC=$host_cc
3286 HOSTCFLAGS=$host_cflags
3287 HOSTEXESUF=$HOSTEXESUF
3288 HOSTLDFLAGS=$host_ldflags
3289 HOSTLIBS=$host_libs
3290 TARGET_EXEC=$target_exec
3291 TARGET_PATH=$target_path
3292 SDL_LIBS=$sdl_libs
3293 SDL_CFLAGS=$sdl_cflags
3294 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3295 EXTRALIBS=$extralibs
3296 INSTALL=install
3297 LIBTARGET=${LIBTARGET}
3298 SLIBNAME=${SLIBNAME}
3299 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3300 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3301 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3302 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3303 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3304 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3305 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3306 EOF
3307
3308 get_version(){
3309     name=$1
3310     file=$source_path/$2
3311     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3312     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3313     lcname=$(tolower $name)
3314     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3315     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3316 }
3317
3318 get_version LIBSWSCALE  libswscale/swscale.h
3319 get_version LIBPOSTPROC libpostproc/postprocess.h
3320 get_version LIBAVCODEC  libavcodec/version.h
3321 get_version LIBAVDEVICE libavdevice/avdevice.h
3322 get_version LIBAVFORMAT libavformat/version.h
3323 get_version LIBAVUTIL   libavutil/avutil.h
3324 get_version LIBAVFILTER libavfilter/avfilter.h
3325
3326 cat > $TMPH <<EOF
3327 /* Automatically generated by configure - do not modify! */
3328 #ifndef LIBAV_CONFIG_H
3329 #define LIBAV_CONFIG_H
3330 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3331 #define LIBAV_LICENSE "$(c_escape $license)"
3332 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3333 #define CC_TYPE "$cc_type"
3334 #define CC_VERSION $cc_version
3335 #define restrict $_restrict
3336 #define EXTERN_PREFIX "${extern_prefix}"
3337 #define EXTERN_ASM ${extern_prefix}
3338 #define SLIBSUF "$SLIBSUF"
3339 EOF
3340
3341 test -n "$malloc_prefix" &&
3342     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3343
3344 if enabled small || disabled optimizations; then
3345     echo "#undef  av_always_inline"  >> $TMPH
3346     if enabled small; then
3347         echo "#define av_always_inline inline"  >> $TMPH
3348     else
3349         echo "#define av_always_inline av_unused"  >> $TMPH
3350     fi
3351 fi
3352
3353 if enabled yasm; then
3354     append config_files $TMPASM
3355     printf '' >$TMPASM
3356 fi
3357
3358 print_config ARCH_   "$config_files" $ARCH_LIST
3359 print_config HAVE_   "$config_files" $HAVE_LIST
3360 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3361                                      $CONFIG_EXTRA      \
3362                                      $DECODER_LIST      \
3363                                      $ENCODER_LIST      \
3364                                      $HWACCEL_LIST      \
3365                                      $PARSER_LIST       \
3366                                      $BSF_LIST          \
3367                                      $DEMUXER_LIST      \
3368                                      $MUXER_LIST        \
3369                                      $FILTER_LIST       \
3370                                      $PROTOCOL_LIST     \
3371                                      $INDEV_LIST        \
3372                                      $OUTDEV_LIST       \
3373
3374 cat >>config.mak <<EOF
3375 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3376 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3377 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3378 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3379 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3380 EOF
3381
3382 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3383 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3384
3385 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3386 cp_if_changed $TMPH config.h
3387 touch .config
3388
3389 enabled yasm && cp_if_changed $TMPASM config.asm
3390
3391 cat > $TMPH <<EOF
3392 /* Generated by ffconf */
3393 #ifndef AVUTIL_AVCONFIG_H
3394 #define AVUTIL_AVCONFIG_H
3395 EOF
3396
3397 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3398
3399 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3400
3401 cp_if_changed $TMPH libavutil/avconfig.h
3402
3403 test -n "$WARNINGS" && printf "\n$WARNINGS"
3404
3405 # build pkg-config files
3406
3407 pkgconfig_generate(){
3408 name=$1
3409 shortname=${name#lib}${build_suffix}
3410 comment=$2
3411 version=$3
3412 libs=$4
3413 requires=$5
3414 enabled ${name#lib} || return 0
3415 cat <<EOF > $name/$name.pc
3416 prefix=$prefix
3417 exec_prefix=\${prefix}
3418 libdir=$libdir
3419 includedir=$incdir
3420
3421 Name: $name
3422 Description: $comment
3423 Version: $version
3424 Requires: $(enabled shared || echo $requires)
3425 Requires.private: $(enabled shared && echo $requires)
3426 Conflicts:
3427 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3428 Libs.private: $(enabled shared && echo $libs)
3429 Cflags: -I\${includedir}
3430 EOF
3431 cat <<EOF > $name/$name-uninstalled.pc
3432 prefix=
3433 exec_prefix=
3434 libdir=\${pcfiledir}
3435 includedir=${source_path}
3436
3437 Name: $name
3438 Description: $comment
3439 Version: $version
3440 Requires: $requires
3441 Conflicts:
3442 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3443 Cflags: -I\${includedir}
3444 EOF
3445 }
3446
3447 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3448 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3449 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3450 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3451 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3452 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3453 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"