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

   1 #!/bin/sh
   2 #
   3 # FFmpeg 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 FFMPEG, 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 FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 164   --enable-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libfreetype     enable libfreetype [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 185                            native implementation exists [no]
 186   --enable-libvpx          enable VP8 support via libvpx [no]
 187   --enable-libx264         enable H.264 encoding via x264 [no]
 188   --enable-libxavs         enable AVS encoding via xavs [no]
 189   --enable-libxvid         enable Xvid encoding via xvidcore,
 190                            native MPEG-4/Xvid encoder exists [no]
 191   --enable-mlib            enable Sun medialib [no]
 192   --enable-zlib            enable zlib [autodetect]
 193
 194 Advanced options (experts only):
 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 FFmpeg itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --disable-stripping      disable stripping of executables and shared libraries
 248   --samples=PATH           location of test samples for FATE, if not set use
 249                            \$FATE_SAMPLES at make invocation time.
 250
 251 NOTE: Object files are built at the place where configure is launched.
 252 EOF
 253   exit 0
 254 }
 255
 256 quotes='""'
 257
 258 log(){
 259     echo "$@" >> $logfile
 260 }
 261
 262 log_file(){
 263     log BEGIN $1
 264     pr -n -t $1 >> $logfile
 265     log END $1
 266 }
 267
 268 echolog(){
 269     log "$@"
 270     echo "$@"
 271 }
 272
 273 warn(){
 274     log "WARNING: $*"
 275     WARNINGS="${WARNINGS}WARNING: $*\n"
 276 }
 277
 278 die(){
 279     echolog "$@"
 280     cat <<EOF
 281
 282 If you think configure made a mistake, make sure you are using the latest
 283 version from Git.  If the latest version fails, report the problem to the
 284 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 285 EOF
 286     if disabled logging; then
 287         cat <<EOF
 288 Rerun configure with logging enabled (do not use --disable-logging), and
 289 include the log this produces with your report.
 290 EOF
 291     else
 292 cat <<EOF
 293 Include the log file "$logfile" produced by configure as this will help
 294 solving the problem.
 295 EOF
 296     fi
 297     exit 1
 298 }
 299
 300 # Avoid locale weirdness, besides we really just want to translate ASCII.
 301 toupper(){
 302     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 303 }
 304
 305 tolower(){
 306     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 307 }
 308
 309 c_escape(){
 310     echo "$*" | sed 's/["\\]/\\\0/g'
 311 }
 312
 313 sh_quote(){
 314     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 315     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 316     echo "$v"
 317 }
 318
 319 cleanws(){
 320     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 321 }
 322
 323 filter(){
 324     pat=$1
 325     shift
 326     for v; do
 327         eval "case $v in $pat) echo $v ;; esac"
 328     done
 329 }
 330
 331 filter_out(){
 332     pat=$1
 333     shift
 334     for v; do
 335         eval "case $v in $pat) ;; *) echo $v ;; esac"
 336     done
 337 }
 338
 339 map(){
 340     m=$1
 341     shift
 342     for v; do eval $m; done
 343 }
 344
 345 set_all(){
 346     value=$1
 347     shift
 348     for var in $*; do
 349         eval $var=$value
 350     done
 351 }
 352
 353 set_weak(){
 354     value=$1
 355     shift
 356     for var; do
 357         eval : \${$var:=$value}
 358     done
 359 }
 360
 361 set_safe(){
 362     var=$1
 363     shift
 364     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 365 }
 366
 367 get_safe(){
 368     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 369 }
 370
 371 pushvar(){
 372     for var in $*; do
 373         eval level=\${${var}_level:=0}
 374         eval ${var}_${level}="\$$var"
 375         eval ${var}_level=$(($level+1))
 376     done
 377 }
 378
 379 popvar(){
 380     for var in $*; do
 381         eval level=\${${var}_level:-0}
 382         test $level = 0 && continue
 383         eval level=$(($level-1))
 384         eval $var="\${${var}_${level}}"
 385         eval ${var}_level=$level
 386         eval unset ${var}_${level}
 387     done
 388 }
 389
 390 enable(){
 391     set_all yes $*
 392 }
 393
 394 disable(){
 395     set_all no $*
 396 }
 397
 398 enable_weak(){
 399     set_weak yes $*
 400 }
 401
 402 disable_weak(){
 403     set_weak no $*
 404 }
 405
 406 enable_safe(){
 407     for var; do
 408         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 409     done
 410 }
 411
 412 disable_safe(){
 413     for var; do
 414         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 415     done
 416 }
 417
 418 do_enable_deep(){
 419     for var; do
 420         enabled $var && continue
 421         eval sel="\$${var}_select"
 422         eval sgs="\$${var}_suggest"
 423         pushvar var sgs
 424         enable_deep $sel
 425         popvar sgs
 426         enable_deep_weak $sgs
 427         popvar var
 428     done
 429 }
 430
 431 enable_deep(){
 432     do_enable_deep $*
 433     enable $*
 434 }
 435
 436 enable_deep_weak(){
 437     do_enable_deep $*
 438     enable_weak $*
 439 }
 440
 441 enabled(){
 442     test "${1#!}" = "$1" && op== || op=!=
 443     eval test "x\$${1#!}" $op "xyes"
 444 }
 445
 446 disabled(){
 447     test "${1#!}" = "$1" && op== || op=!=
 448     eval test "x\$${1#!}" $op "xno"
 449 }
 450
 451 enabled_all(){
 452     for opt; do
 453         enabled $opt || return 1
 454     done
 455 }
 456
 457 disabled_all(){
 458     for opt; do
 459         disabled $opt || return 1
 460     done
 461 }
 462
 463 enabled_any(){
 464     for opt; do
 465         enabled $opt && return 0
 466     done
 467 }
 468
 469 disabled_any(){
 470     for opt; do
 471         disabled $opt && return 0
 472     done
 473     return 1
 474 }
 475
 476 set_default(){
 477     for opt; do
 478         eval : \${$opt:=\$${opt}_default}
 479     done
 480 }
 481
 482 is_in(){
 483     value=$1
 484     shift
 485     for var in $*; do
 486         [ $var = $value ] && return 0
 487     done
 488     return 1
 489 }
 490
 491 check_deps(){
 492     for cfg; do
 493         cfg="${cfg#!}"
 494         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 495         disabled ${cfg}_checking && continue
 496         enable ${cfg}_checking
 497
 498         eval dep_all="\$${cfg}_deps"
 499         eval dep_any="\$${cfg}_deps_any"
 500         eval dep_sel="\$${cfg}_select"
 501         eval dep_sgs="\$${cfg}_suggest"
 502         eval dep_ifa="\$${cfg}_if"
 503         eval dep_ifn="\$${cfg}_if_any"
 504
 505         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 506         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 507         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 508
 509         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 510         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 511         enabled_all  $dep_all || disable $cfg
 512         enabled_any  $dep_any || disable $cfg
 513         disabled_any $dep_sel && disable $cfg
 514
 515         if enabled $cfg; then
 516             eval dep_extralibs="\$${cfg}_extralibs"
 517             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 518             enable_deep $dep_sel
 519             enable_deep_weak $dep_sgs
 520         fi
 521
 522         disable ${cfg}_checking
 523     done
 524 }
 525
 526 print_config_h(){
 527     enabled $1 && v=1 || v=0
 528     echo "#define $2 $v"
 529 }
 530
 531 print_config_mak(){
 532     enabled $1 && v= || v=!
 533     echo "$v$2=yes"
 534 }
 535
 536 print_config_asm(){
 537     enabled $1 && echo "%define $2"
 538 }
 539
 540 print_config(){
 541     pfx=$1
 542     files=$2
 543     shift 2
 544     for cfg; do
 545         ucname="$(toupper $cfg)"
 546         for f in $files; do
 547             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 548         done
 549     done
 550 }
 551
 552 print_enabled(){
 553     test "$1" = -n && end=" " && shift || end="\n"
 554     suf=$1
 555     shift
 556     for v; do
 557         enabled $v && printf "%s$end" ${v%$suf};
 558     done
 559 }
 560
 561 append(){
 562     var=$1
 563     shift
 564     eval "$var=\"\$$var $*\""
 565 }
 566
 567 prepend(){
 568     var=$1
 569     shift
 570     eval "$var=\"$* \$$var\""
 571 }
 572
 573 add_cppflags(){
 574     append CPPFLAGS $($filter_cppflags "$@")
 575 }
 576
 577 add_cflags(){
 578     append CFLAGS $($filter_cflags "$@")
 579 }
 580
 581 add_asflags(){
 582     append ASFLAGS $($filter_asflags "$@")
 583 }
 584
 585 add_ldflags(){
 586     append LDFLAGS "$@"
 587 }
 588
 589 add_extralibs(){
 590     prepend extralibs "$@"
 591 }
 592
 593 check_cmd(){
 594     log "$@"
 595     "$@" >> $logfile 2>&1
 596 }
 597
 598 check_cc(){
 599     log check_cc "$@"
 600     cat > $TMPC
 601     log_file $TMPC
 602     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 603 }
 604
 605 check_cpp(){
 606     log check_cpp "$@"
 607     cat > $TMPC
 608     log_file $TMPC
 609     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 610 }
 611
 612 check_as(){
 613     log check_as "$@"
 614     cat > $TMPC
 615     log_file $TMPC
 616     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 617 }
 618
 619 check_asm(){
 620     log check_asm "$@"
 621     name="$1"
 622     code="$2"
 623     shift 2
 624     disable $name
 625     check_as "$@" <<EOF && enable $name
 626 void foo(void){ __asm__ volatile($code); }
 627 EOF
 628 }
 629
 630 check_yasm(){
 631     log check_yasm "$@"
 632     echo "$1" > $TMPS
 633     log_file $TMPS
 634     shift 1
 635     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 636 }
 637
 638 check_ld(){
 639     log check_ld "$@"
 640     flags=''
 641     libs=''
 642     for f; do
 643         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 644     done
 645     check_cc $($filter_cflags $flags) || return
 646     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 647 }
 648
 649 check_cppflags(){
 650     log check_cppflags "$@"
 651     set -- $($filter_cppflags "$@")
 652     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 653 int x;
 654 EOF
 655 }
 656
 657 check_cflags(){
 658     log check_cflags "$@"
 659     set -- $($filter_cflags "$@")
 660     check_cc "$@" <<EOF && append CFLAGS "$@"
 661 int x;
 662 EOF
 663 }
 664
 665 test_ldflags(){
 666     log test_ldflags "$@"
 667     check_ld "$@" <<EOF
 668 int main(void){ return 0; }
 669 EOF
 670 }
 671
 672 check_ldflags(){
 673     log check_ldflags "$@"
 674     test_ldflags "$@" && add_ldflags "$@"
 675 }
 676
 677 check_header(){
 678     log check_header "$@"
 679     header=$1
 680     shift
 681     disable_safe $header
 682     check_cpp "$@" <<EOF && enable_safe $header
 683 #include <$header>
 684 int x;
 685 EOF
 686 }
 687
 688 check_func(){
 689     log check_func "$@"
 690     func=$1
 691     shift
 692     disable $func
 693     check_ld "$@" <<EOF && enable $func
 694 extern int $func();
 695 int main(void){ $func(); }
 696 EOF
 697 }
 698
 699 check_mathfunc(){
 700     log check_mathfunc "$@"
 701     func=$1
 702     shift
 703     disable $func
 704     check_ld "$@" <<EOF && enable $func
 705 #include <math.h>
 706 float foo(float f) { return $func(f); }
 707 int main(void){ return 0; }
 708 EOF
 709 }
 710
 711 check_func_headers(){
 712     log check_func_headers "$@"
 713     headers=$1
 714     funcs=$2
 715     shift 2
 716     {
 717         for hdr in $headers; do
 718             echo "#include <$hdr>"
 719         done
 720         for func in $funcs; do
 721             echo "long check_$func(void) { return (long) $func; }"
 722         done
 723         echo "int main(void) { return 0; }"
 724     } | check_ld "$@" && enable $funcs && enable_safe $headers
 725 }
 726
 727 check_cpp_condition(){
 728     log check_cpp_condition "$@"
 729     header=$1
 730     condition=$2
 731     shift 2
 732     check_cpp $($filter_cppflags "$@") <<EOF
 733 #include <$header>
 734 #if !($condition)
 735 #error "unsatisfied condition: $condition"
 736 #endif
 737 EOF
 738 }
 739
 740 check_lib(){
 741     log check_lib "$@"
 742     header="$1"
 743     func="$2"
 744     shift 2
 745     check_header $header && check_func $func "$@" && add_extralibs "$@"
 746 }
 747
 748 check_lib2(){
 749     log check_lib2 "$@"
 750     headers="$1"
 751     funcs="$2"
 752     shift 2
 753     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 754 }
 755
 756 check_pkg_config(){
 757     log check_pkg_config "$@"
 758     pkg="$1"
 759     headers="$2"
 760     funcs="$3"
 761     shift 3
 762     $pkg_config --exists $pkg 2>/dev/null || return
 763     pkg_cflags=$($pkg_config --cflags $pkg)
 764     pkg_libs=$($pkg_config --libs $pkg)
 765     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 766         set_safe ${pkg}_cflags $pkg_cflags   &&
 767         set_safe ${pkg}_libs   $pkg_libs
 768 }
 769
 770 check_exec(){
 771     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 772 }
 773
 774 check_exec_crash(){
 775     code=$(cat)
 776
 777     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 778     # are safe but may not be available everywhere.  Thus we use
 779     # raise(SIGTERM) instead.  The check is run in a subshell so we
 780     # can redirect the "Terminated" message from the shell.  SIGBUS
 781     # is not defined by standard C so it is used conditionally.
 782
 783     (check_exec "$@") >> $logfile 2>&1 <<EOF
 784 #include <signal.h>
 785 static void sighandler(int sig){
 786     raise(SIGTERM);
 787 }
 788 int main(void){
 789     signal(SIGILL, sighandler);
 790     signal(SIGFPE, sighandler);
 791     signal(SIGSEGV, sighandler);
 792 #ifdef SIGBUS
 793     signal(SIGBUS, sighandler);
 794 #endif
 795     { $code }
 796 }
 797 EOF
 798 }
 799
 800 check_type(){
 801     log check_type "$@"
 802     headers=$1
 803     type=$2
 804     shift 2
 805     disable_safe "$type"
 806     incs=""
 807     for hdr in $headers; do
 808         incs="$incs
 809 #include <$hdr>"
 810     done
 811     check_cc "$@" <<EOF && enable_safe "$type"
 812 $incs
 813 $type v;
 814 EOF
 815 }
 816
 817 check_struct(){
 818     log check_type "$@"
 819     headers=$1
 820     struct=$2
 821     member=$3
 822     shift 3
 823     disable_safe "${struct}_${member}"
 824     incs=""
 825     for hdr in $headers; do
 826         incs="$incs
 827 #include <$hdr>"
 828     done
 829     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 830 $incs
 831 const void *p = &(($struct *)0)->$member;
 832 EOF
 833 }
 834
 835 require(){
 836     name="$1"
 837     header="$2"
 838     func="$3"
 839     shift 3
 840     check_lib $header $func "$@" || die "ERROR: $name not found"
 841 }
 842
 843 require2(){
 844     name="$1"
 845     headers="$2"
 846     func="$3"
 847     shift 3
 848     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 849 }
 850
 851 require_pkg_config(){
 852     pkg="$1"
 853     check_pkg_config "$@" || die "ERROR: $pkg not found"
 854     add_cflags    $(get_safe ${pkg}_cflags)
 855     add_extralibs $(get_safe ${pkg}_libs)
 856 }
 857
 858 check_host_cc(){
 859     log check_host_cc "$@"
 860     cat > $TMPC
 861     log_file $TMPC
 862     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 863 }
 864
 865 check_host_cflags(){
 866     log check_host_cflags "$@"
 867     check_host_cc "$@" <<EOF && append host_cflags "$@"
 868 int x;
 869 EOF
 870 }
 871
 872 apply(){
 873     file=$1
 874     shift
 875     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 876 }
 877
 878 cp_if_changed(){
 879     cmp -s "$1" "$2" &&
 880         echo "$2 is unchanged" ||
 881         cp -f "$1" "$2"
 882 }
 883
 884 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 885 # system-dependent things.
 886
 887 COMPONENT_LIST="
 888     bsfs
 889     decoders
 890     demuxers
 891     encoders
 892     filters
 893     hwaccels
 894     indevs
 895     muxers
 896     outdevs
 897     parsers
 898     protocols
 899 "
 900
 901 CONFIG_LIST="
 902     $COMPONENT_LIST
 903     aandct
 904     ac3dsp
 905     avcodec
 906     avdevice
 907     avfilter
 908     avformat
 909     avisynth
 910     bzlib
 911     crystalhd
 912     dct
 913     doc
 914     dwt
 915     dxva2
 916     fastdiv
 917     ffmpeg
 918     ffplay
 919     ffprobe
 920     ffserver
 921     fft
 922     frei0r
 923     golomb
 924     gpl
 925     gray
 926     h264dsp
 927     h264pred
 928     hardcoded_tables
 929     huffman
 930     libcelt
 931     libdc1394
 932     libdirac
 933     libfaac
 934     libfreetype
 935     libgsm
 936     libmp3lame
 937     libnut
 938     libopencore_amrnb
 939     libopencore_amrwb
 940     libopencv
 941     libopenjpeg
 942     librtmp
 943     libschroedinger
 944     libspeex
 945     libtheora
 946     libvo_aacenc
 947     libvo_amrwbenc
 948     libvorbis
 949     libvpx
 950     libx264
 951     libxavs
 952     libxvid
 953     lpc
 954     lsp
 955     mdct
 956     memalign_hack
 957     mlib
 958     mpegaudiodsp
 959     network
 960     nonfree
 961     pic
 962     postproc
 963     rdft
 964     rtpdec
 965     runtime_cpudetect
 966     shared
 967     sinewin
 968     small
 969     sram
 970     static
 971     swscale
 972     swscale_alpha
 973     vaapi
 974     vdpau
 975     version3
 976     x11grab
 977     zlib
 978 "
 979
 980 THREADS_LIST='
 981     pthreads
 982     w32threads
 983 '
 984
 985 ARCH_LIST='
 986     alpha
 987     arm
 988     avr32
 989     avr32_ap
 990     avr32_uc
 991     bfin
 992     ia64
 993     m68k
 994     mips
 995     mips64
 996     parisc
 997     ppc
 998     ppc64
 999     s390
1000     sh4
1001     sparc
1002     sparc64
1003     tomi
1004     x86
1005     x86_32
1006     x86_64
1007 '
1008
1009 ARCH_EXT_LIST='
1010     altivec
1011     amd3dnow
1012     amd3dnowext
1013     armv5te
1014     armv6
1015     armv6t2
1016     armvfp
1017     avx
1018     iwmmxt
1019     mmi
1020     mmx
1021     mmx2
1022     neon
1023     ppc4xx
1024     sse
1025     ssse3
1026     vfpv3
1027     vis
1028 '
1029
1030 HAVE_LIST_PUB='
1031     bigendian
1032     fast_unaligned
1033 '
1034
1035 HAVE_LIST="
1036     $ARCH_EXT_LIST
1037     $HAVE_LIST_PUB
1038     $THREADS_LIST
1039     aligned_stack
1040     alsa_asoundlib_h
1041     altivec_h
1042     arpa_inet_h
1043     attribute_may_alias
1044     attribute_packed
1045     bswap
1046     closesocket
1047     cmov
1048     dcbzl
1049     dev_bktr_ioctl_bt848_h
1050     dev_bktr_ioctl_meteor_h
1051     dev_ic_bt8xx_h
1052     dev_video_meteor_ioctl_meteor_h
1053     dev_video_bktr_ioctl_bt848_h
1054     dlfcn_h
1055     dlopen
1056     dos_paths
1057     ebp_available
1058     ebx_available
1059     exp2
1060     exp2f
1061     fast_64bit
1062     fast_clz
1063     fast_cmov
1064     fcntl
1065     fork
1066     getaddrinfo
1067     gethrtime
1068     GetProcessMemoryInfo
1069     GetProcessTimes
1070     getrusage
1071     gnu_as
1072     struct_rusage_ru_maxrss
1073     ibm_asm
1074     inet_aton
1075     inline_asm
1076     isatty
1077     kbhit
1078     ldbrx
1079     llrint
1080     llrintf
1081     local_aligned_16
1082     local_aligned_8
1083     localtime_r
1084     log2
1085     log2f
1086     loongson
1087     lrint
1088     lrintf
1089     lzo1x_999_compress
1090     machine_ioctl_bt848_h
1091     machine_ioctl_meteor_h
1092     malloc_h
1093     MapViewOfFile
1094     memalign
1095     mkstemp
1096     mmap
1097     pld
1098     posix_memalign
1099     round
1100     roundf
1101     sdl
1102     sdl_video_size
1103     setmode
1104     sndio_h
1105     socklen_t
1106     soundcard_h
1107     poll_h
1108     setrlimit
1109     strerror_r
1110     strtok_r
1111     struct_addrinfo
1112     struct_ipv6_mreq
1113     struct_sockaddr_in6
1114     struct_sockaddr_sa_len
1115     struct_sockaddr_storage
1116     symver
1117     symver_gnu_asm
1118     symver_asm_label
1119     sys_mman_h
1120     sys_resource_h
1121     sys_select_h
1122     sys_soundcard_h
1123     sys_videoio_h
1124     ten_operands
1125     termios_h
1126     threads
1127     trunc
1128     truncf
1129     vfp_args
1130     VirtualAlloc
1131     winsock2_h
1132     xform_asm
1133     xmm_clobbers
1134     yasm
1135 "
1136
1137 # options emitted with CONFIG_ prefix but not available on command line
1138 CONFIG_EXTRA="
1139     avutil
1140     gplv3
1141     lgplv3
1142 "
1143
1144 CMDLINE_SELECT="
1145     $ARCH_EXT_LIST
1146     $CONFIG_LIST
1147     $THREADS_LIST
1148     asm
1149     cross_compile
1150     debug
1151     extra_warnings
1152     logging
1153     optimizations
1154     stripping
1155     symver
1156     yasm
1157 "
1158
1159 PATHS_LIST='
1160     bindir
1161     datadir
1162     incdir
1163     libdir
1164     mandir
1165     prefix
1166     shlibdir
1167 '
1168
1169 CMDLINE_SET="
1170     $PATHS_LIST
1171     ar
1172     arch
1173     as
1174     build_suffix
1175     cc
1176     cpu
1177     cross_prefix
1178     dep_cc
1179     extra_version
1180     host_cc
1181     host_cflags
1182     host_ldflags
1183     host_libs
1184     host_os
1185     install
1186     ld
1187     logfile
1188     malloc_prefix
1189     nm
1190     pkg_config
1191     samples
1192     strip
1193     sysinclude
1194     sysroot
1195     target_exec
1196     target_os
1197     target_path
1198 "
1199
1200 CMDLINE_APPEND="
1201     extra_cflags
1202 "
1203
1204 # code dependency declarations
1205
1206 # architecture extensions
1207
1208 armv5te_deps="arm"
1209 armv6_deps="arm"
1210 armv6t2_deps="arm"
1211 armvfp_deps="arm"
1212 iwmmxt_deps="arm"
1213 neon_deps="arm"
1214 vfpv3_deps="armvfp"
1215
1216 mmi_deps="mips"
1217
1218 altivec_deps="ppc"
1219 ppc4xx_deps="ppc"
1220
1221 vis_deps="sparc"
1222
1223 x86_64_suggest="cmov fast_cmov"
1224 amd3dnow_deps="mmx"
1225 amd3dnowext_deps="amd3dnow"
1226 mmx_deps="x86"
1227 mmx2_deps="mmx"
1228 sse_deps="mmx"
1229 ssse3_deps="sse"
1230 avx_deps="ssse3"
1231
1232 aligned_stack_if_any="ppc x86"
1233 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1234 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1235 fast_unaligned_if_any="armv6 ppc x86"
1236
1237 need_memalign="altivec neon sse"
1238 inline_asm_deps="!tms470"
1239
1240 symver_if_any="symver_asm_label symver_gnu_asm"
1241
1242 # subsystems
1243 dct_select="rdft"
1244 mdct_select="fft"
1245 rdft_select="fft"
1246 mpegaudiodsp_select="dct"
1247
1248 # decoders / encoders / hardware accelerators
1249 aac_decoder_select="mdct sinewin"
1250 aac_encoder_select="mdct sinewin"
1251 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1252 ac3_decoder_select="mdct ac3dsp ac3_parser"
1253 ac3_encoder_select="mdct ac3dsp"
1254 ac3_fixed_encoder_select="mdct ac3dsp"
1255 alac_encoder_select="lpc"
1256 amrnb_decoder_select="lsp"
1257 amrwb_decoder_select="lsp"
1258 atrac1_decoder_select="mdct sinewin"
1259 atrac3_decoder_select="mdct"
1260 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1261 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1262 cavs_decoder_select="golomb"
1263 cook_decoder_select="mdct sinewin"
1264 cscd_decoder_suggest="zlib"
1265 dca_decoder_select="mdct"
1266 dnxhd_encoder_select="aandct"
1267 dxa_decoder_select="zlib"
1268 eac3_decoder_select="ac3_decoder"
1269 eac3_encoder_select="mdct ac3dsp"
1270 eamad_decoder_select="aandct"
1271 eatgq_decoder_select="aandct"
1272 eatqi_decoder_select="aandct"
1273 ffv1_decoder_select="golomb"
1274 flac_decoder_select="golomb"
1275 flac_encoder_select="golomb lpc"
1276 flashsv_decoder_select="zlib"
1277 flashsv_encoder_select="zlib"
1278 flashsv2_encoder_select="zlib"
1279 flv_decoder_select="h263_decoder"
1280 flv_encoder_select="h263_encoder"
1281 fraps_decoder_select="huffman"
1282 h261_encoder_select="aandct"
1283 h263_decoder_select="h263_parser"
1284 h263_encoder_select="aandct"
1285 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1286 h263i_decoder_select="h263_decoder"
1287 h263p_encoder_select="h263_encoder"
1288 h264_decoder_select="golomb h264dsp h264pred"
1289 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1290 h264_dxva2_hwaccel_deps="dxva2api_h"
1291 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1292 h264_vaapi_hwaccel_select="vaapi"
1293 h264_vdpau_decoder_select="vdpau h264_decoder"
1294 imc_decoder_select="fft mdct sinewin"
1295 jpegls_decoder_select="golomb"
1296 jpegls_encoder_select="golomb"
1297 ljpeg_encoder_select="aandct"
1298 loco_decoder_select="golomb"
1299 mjpeg_encoder_select="aandct"
1300 mlp_decoder_select="mlp_parser"
1301 mp1_decoder_select="mpegaudiodsp"
1302 mp2_decoder_select="mpegaudiodsp"
1303 mp3adu_decoder_select="mpegaudiodsp"
1304 mp3_decoder_select="mpegaudiodsp"
1305 mp3on4_decoder_select="mpegaudiodsp"
1306 mp1float_decoder_select="mpegaudiodsp"
1307 mp2float_decoder_select="mpegaudiodsp"
1308 mp3adufloat_decoder_select="mpegaudiodsp"
1309 mp3float_decoder_select="mpegaudiodsp"
1310 mp3on4float_decoder_select="mpegaudiodsp"
1311 mpeg1video_encoder_select="aandct"
1312 mpeg2video_encoder_select="aandct"
1313 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1314 mpeg4_encoder_select="h263_encoder"
1315 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1316 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1317 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1318 mpeg2_crystalhd_decoder_select="crystalhd"
1319 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1320 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1321 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1322 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1323 mpeg4_crystalhd_decoder_select="crystalhd"
1324 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1325 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1326 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1327 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1328 msmpeg4_crystalhd_decoder_select="crystalhd"
1329 msmpeg4v1_decoder_select="h263_decoder"
1330 msmpeg4v1_encoder_select="h263_encoder"
1331 msmpeg4v2_decoder_select="h263_decoder"
1332 msmpeg4v2_encoder_select="h263_encoder"
1333 msmpeg4v3_decoder_select="h263_decoder"
1334 msmpeg4v3_encoder_select="h263_encoder"
1335 nellymoser_decoder_select="mdct sinewin"
1336 nellymoser_encoder_select="mdct sinewin"
1337 png_decoder_select="zlib"
1338 png_encoder_select="zlib"
1339 qcelp_decoder_select="lsp"
1340 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1341 ra_144_encoder_select="lpc"
1342 rv10_decoder_select="h263_decoder"
1343 rv10_encoder_select="h263_encoder"
1344 rv20_decoder_select="h263_decoder"
1345 rv20_encoder_select="h263_encoder"
1346 rv30_decoder_select="golomb h264pred"
1347 rv40_decoder_select="golomb h264pred"
1348 shorten_decoder_select="golomb"
1349 sipr_decoder_select="lsp"
1350 snow_decoder_select="dwt"
1351 snow_encoder_select="aandct dwt"
1352 sonic_decoder_select="golomb"
1353 sonic_encoder_select="golomb"
1354 sonic_ls_encoder_select="golomb"
1355 svq1_encoder_select="aandct"
1356 svq3_decoder_select="golomb h264dsp h264pred"
1357 svq3_decoder_suggest="zlib"
1358 theora_decoder_select="vp3_decoder"
1359 tiff_decoder_suggest="zlib"
1360 tiff_encoder_suggest="zlib"
1361 truehd_decoder_select="mlp_decoder"
1362 tscc_decoder_select="zlib"
1363 twinvq_decoder_select="mdct lsp sinewin"
1364 vc1_decoder_select="h263_decoder"
1365 vc1_crystalhd_decoder_select="crystalhd"
1366 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1367 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1368 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1369 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1370 vorbis_decoder_select="mdct"
1371 vorbis_encoder_select="mdct"
1372 vp6_decoder_select="huffman"
1373 vp6a_decoder_select="vp6_decoder"
1374 vp6f_decoder_select="vp6_decoder"
1375 vp8_decoder_select="h264pred"
1376 wmapro_decoder_select="mdct sinewin"
1377 wmav1_decoder_select="mdct sinewin"
1378 wmav1_encoder_select="mdct sinewin"
1379 wmav2_decoder_select="mdct sinewin"
1380 wmav2_encoder_select="mdct sinewin"
1381 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1382 wmv1_decoder_select="h263_decoder"
1383 wmv1_encoder_select="h263_encoder"
1384 wmv2_decoder_select="h263_decoder"
1385 wmv2_encoder_select="h263_encoder"
1386 wmv3_decoder_select="vc1_decoder"
1387 wmv3_crystalhd_decoder_select="crystalhd"
1388 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1389 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1390 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1391 zlib_decoder_select="zlib"
1392 zlib_encoder_select="zlib"
1393 zmbv_decoder_select="zlib"
1394 zmbv_encoder_select="zlib"
1395
1396 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1397 vaapi_deps="va_va_h"
1398 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1399
1400 # parsers
1401 h264_parser_select="golomb h264dsp h264pred"
1402
1403 # external libraries
1404 libcelt_decoder_deps="libcelt"
1405 libdirac_decoder_deps="libdirac !libschroedinger"
1406 libdirac_encoder_deps="libdirac"
1407 libfaac_encoder_deps="libfaac"
1408 libgsm_decoder_deps="libgsm"
1409 libgsm_encoder_deps="libgsm"
1410 libgsm_ms_decoder_deps="libgsm"
1411 libgsm_ms_encoder_deps="libgsm"
1412 libmp3lame_encoder_deps="libmp3lame"
1413 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1414 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1415 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1416 libopenjpeg_decoder_deps="libopenjpeg"
1417 libschroedinger_decoder_deps="libschroedinger"
1418 libschroedinger_encoder_deps="libschroedinger"
1419 libspeex_decoder_deps="libspeex"
1420 libtheora_encoder_deps="libtheora"
1421 libvo_aacenc_encoder_deps="libvo_aacenc"
1422 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1423 libvorbis_encoder_deps="libvorbis"
1424 libvpx_decoder_deps="libvpx"
1425 libvpx_encoder_deps="libvpx"
1426 libx264_encoder_deps="libx264"
1427 libxavs_encoder_deps="libxavs"
1428 libxvid_encoder_deps="libxvid"
1429
1430 # demuxers / muxers
1431 ac3_demuxer_select="ac3_parser"
1432 asf_stream_muxer_select="asf_muxer"
1433 avisynth_demuxer_deps="avisynth"
1434 dirac_demuxer_select="dirac_parser"
1435 eac3_demuxer_select="ac3_parser"
1436 flac_demuxer_select="flac_parser"
1437 ipod_muxer_select="mov_muxer"
1438 libnut_demuxer_deps="libnut"
1439 libnut_muxer_deps="libnut"
1440 matroska_audio_muxer_select="matroska_muxer"
1441 matroska_demuxer_suggest="zlib bzlib"
1442 mov_demuxer_suggest="zlib"
1443 mp3_demuxer_select="mpegaudio_parser"
1444 mp4_muxer_select="mov_muxer"
1445 mpegtsraw_demuxer_select="mpegts_demuxer"
1446 mxf_d10_muxer_select="mxf_muxer"
1447 ogg_demuxer_select="golomb"
1448 psp_muxer_select="mov_muxer"
1449 rtp_demuxer_select="sdp_demuxer"
1450 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1451 rtsp_demuxer_select="http_protocol rtpdec"
1452 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1453 sap_demuxer_select="sdp_demuxer"
1454 sap_muxer_select="rtp_muxer rtp_protocol"
1455 sdp_demuxer_select="rtpdec"
1456 spdif_muxer_select="aac_parser"
1457 tg2_muxer_select="mov_muxer"
1458 tgp_muxer_select="mov_muxer"
1459 w64_demuxer_deps="wav_demuxer"
1460
1461 # indevs / outdevs
1462 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1463 alsa_outdev_deps="alsa_asoundlib_h"
1464 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1465 dshow_indev_deps="IBaseFilter"
1466 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1467 dv1394_indev_deps="dv1394 dv_demuxer"
1468 fbdev_indev_deps="linux_fb_h"
1469 jack_indev_deps="jack_jack_h sem_timedwait"
1470 libdc1394_indev_deps="libdc1394"
1471 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1472 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1473 sdl_outdev_deps="sdl"
1474 sndio_indev_deps="sndio_h"
1475 sndio_outdev_deps="sndio_h"
1476 v4l_indev_deps="linux_videodev_h"
1477 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1478 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1479 vfwcap_indev_extralibs="-lavicap32"
1480 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1481 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1482
1483 # protocols
1484 gopher_protocol_deps="network"
1485 http_protocol_deps="network"
1486 http_protocol_select="tcp_protocol"
1487 mmsh_protocol_select="http_protocol"
1488 mmst_protocol_deps="network"
1489 rtmp_protocol_select="tcp_protocol"
1490 rtp_protocol_select="udp_protocol"
1491 tcp_protocol_deps="network"
1492 udp_protocol_deps="network"
1493
1494 # filters
1495 blackframe_filter_deps="gpl"
1496 cropdetect_filter_deps="gpl"
1497 drawtext_filter_deps="libfreetype"
1498 frei0r_filter_deps="frei0r dlopen strtok_r"
1499 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1500 hqdn3d_filter_deps="gpl"
1501 movie_filter_deps="avcodec avformat"
1502 mp_filter_deps="gpl avcodec"
1503 ocv_filter_deps="libopencv"
1504 scale_filter_deps="swscale"
1505 yadif_filter_deps="gpl"
1506
1507 # libraries
1508 avdevice_deps="avcodec avformat"
1509 avformat_deps="avcodec"
1510 postproc_deps="gpl"
1511
1512 # programs
1513 ffmpeg_deps="avcodec avformat swscale"
1514 ffmpeg_select="buffer_filter"
1515 ffplay_deps="avcodec avformat swscale sdl"
1516 ffplay_select="rdft"
1517 ffprobe_deps="avcodec avformat"
1518 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1519 ffserver_extralibs='$ldl'
1520
1521 doc_deps="texi2html"
1522
1523 # tests
1524
1525 test_deps(){
1526     suf1=$1
1527     suf2=$2
1528     shift 2
1529     for v; do
1530         dep=${v%=*}
1531         tests=${v#*=}
1532         for name in ${tests}; do
1533             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1534         done
1535     done
1536 }
1537
1538 set_ne_test_deps(){
1539     eval ${1}_be_test_deps="bigendian"
1540     eval ${1}_le_test_deps="!bigendian"
1541 }
1542
1543 test_deps _encoder _decoder                                             \
1544     adpcm_g726=g726                                                     \
1545     adpcm_ima_qt                                                        \
1546     adpcm_ima_wav                                                       \
1547     adpcm_ms                                                            \
1548     adpcm_swf                                                           \
1549     adpcm_yamaha=adpcm_yam                                              \
1550     alac                                                                \
1551     asv1                                                                \
1552     asv2                                                                \
1553     bmp                                                                 \
1554     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1555     dvvideo="dv dv50"                                                   \
1556     ffv1                                                                \
1557     flac                                                                \
1558     flashsv                                                             \
1559     flv                                                                 \
1560     gif                                                                 \
1561     h261                                                                \
1562     h263="h263 h263p"                                                   \
1563     huffyuv                                                             \
1564     jpegls                                                              \
1565     mjpeg="jpg mjpeg ljpeg"                                             \
1566     mp2                                                                 \
1567     mpeg1video="mpeg mpeg1b"                                            \
1568     mpeg2video="mpeg2 mpeg2thread"                                      \
1569     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1570     msmpeg4v3=msmpeg4                                                   \
1571     msmpeg4v2                                                           \
1572     pbm=pbmpipe                                                         \
1573     pcx                                                                 \
1574     pgm="pgm pgmpipe"                                                   \
1575     png                                                                 \
1576     ppm="ppm ppmpipe"                                                   \
1577     rawvideo="rgb yuv"                                                  \
1578     roq                                                                 \
1579     rv10                                                                \
1580     rv20                                                                \
1581     sgi                                                                 \
1582     snow="snow snowll"                                                  \
1583     svq1                                                                \
1584     targa=tga                                                           \
1585     tiff                                                                \
1586     wmav1                                                               \
1587     wmav2                                                               \
1588     wmv1                                                                \
1589     wmv2                                                                \
1590
1591 test_deps _muxer _demuxer                                               \
1592     aiff                                                                \
1593     pcm_alaw=alaw                                                       \
1594     asf                                                                 \
1595     au                                                                  \
1596     avi                                                                 \
1597     dv=dv_fmt                                                           \
1598     ffm                                                                 \
1599     flv=flv_fmt                                                         \
1600     gxf                                                                 \
1601     matroska=mkv                                                        \
1602     mmf                                                                 \
1603     mov                                                                 \
1604     pcm_mulaw=mulaw                                                     \
1605     mxf                                                                 \
1606     nut                                                                 \
1607     ogg                                                                 \
1608     rawvideo=pixfmt                                                     \
1609     rm                                                                  \
1610     swf                                                                 \
1611     mpegts=ts                                                           \
1612     voc                                                                 \
1613     wav                                                                 \
1614     yuv4mpegpipe=yuv4mpeg                                               \
1615
1616 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1617 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1618
1619 set_ne_test_deps pixdesc
1620 set_ne_test_deps pixfmts_copy
1621 set_ne_test_deps pixfmts_crop
1622 set_ne_test_deps pixfmts_hflip
1623 set_ne_test_deps pixfmts_null
1624 set_ne_test_deps pixfmts_pad
1625 set_ne_test_deps pixfmts_scale
1626 set_ne_test_deps pixfmts_vflip
1627
1628 # default parameters
1629
1630 logfile="config.log"
1631
1632 # installation paths
1633 prefix_default="/usr/local"
1634 bindir_default='${prefix}/bin'
1635 datadir_default='${prefix}/share/ffmpeg'
1636 incdir_default='${prefix}/include'
1637 libdir_default='${prefix}/lib'
1638 mandir_default='${prefix}/share/man'
1639 shlibdir_default="$libdir_default"
1640
1641 # toolchain
1642 ar_default="ar"
1643 cc_default="gcc"
1644 cc_version=\"unknown\"
1645 host_cc_default="gcc"
1646 install="install"
1647 ln_s="ln -sf"
1648 nm_default="nm"
1649 objformat="elf"
1650 pkg_config_default=pkg-config
1651 ranlib="ranlib"
1652 strip_default="strip"
1653 yasmexe="yasm"
1654 nogas=":"
1655
1656 nm_opts='-g'
1657
1658 # machine
1659 arch_default=$(uname -m)
1660 cpu="generic"
1661
1662 # OS
1663 target_os_default=$(tolower $(uname -s))
1664 host_os=$target_os_default
1665
1666 # configurable options
1667 enable avcodec
1668 enable avdevice
1669 enable avfilter
1670 enable avformat
1671 enable avutil
1672 enable asm
1673 enable debug
1674 enable doc
1675 enable fastdiv
1676 enable ffmpeg
1677 enable ffplay
1678 enable ffprobe
1679 enable ffserver
1680 enable network
1681 enable optimizations
1682 enable postproc
1683 enable protocols
1684 enable static
1685 enable stripping
1686 enable swscale
1687 enable swscale_alpha
1688
1689 # build settings
1690 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1691 FFSERVERLDFLAGS=-Wl,-E
1692 LIBPREF="lib"
1693 LIBSUF=".a"
1694 FULLNAME='$(NAME)$(BUILDSUF)'
1695 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1696 SLIBPREF="lib"
1697 SLIBSUF=".so"
1698 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1699 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1700 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1701 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1702
1703 CC_O='-o $@'
1704
1705 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1706 host_libs='-lm'
1707
1708 target_path='$(CURDIR)'
1709
1710 # since the object filename is not given with the -MM flag, the compiler
1711 # is only able to print the basename, and we must add the path ourselves
1712 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1713 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1714
1715 # find source path
1716 if test -f configure; then
1717     source_path="$(pwd)"
1718     disable source_path_used
1719 else
1720     source_path=$(cd $(dirname "$0"); pwd)
1721     enable source_path_used
1722     echo "$source_path" | grep -q '[[:blank:]]' &&
1723         die "Out of tree builds are impossible with whitespace in source path."
1724     test -e "$source_path/config.h" &&
1725         die "Out of tree builds are impossible with config.h in source dir."
1726 fi
1727
1728 for v in "$@"; do
1729     r=${v#*=}
1730     l=${v%"$r"}
1731     r=$(sh_quote "$r")
1732     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1733 done
1734
1735 find_things(){
1736     thing=$1
1737     pattern=$2
1738     file=$source_path/$3
1739     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1740 }
1741
1742 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1743 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1744 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1745 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1746 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1747 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1748 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1749 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1750 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1751 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1752 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1753
1754 find_tests(){
1755     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1756 }
1757
1758 ACODEC_TESTS=$(find_tests acodec)
1759 VCODEC_TESTS=$(find_tests vsynth1)
1760 LAVF_TESTS=$(find_tests lavf)
1761 LAVFI_TESTS=$(find_tests lavfi)
1762 SEEK_TESTS=$(find_tests seek seek_)
1763
1764 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1765
1766 for n in $COMPONENT_LIST; do
1767     v=$(toupper ${n%s})_LIST
1768     eval enable \$$v
1769     eval ${n}_if_any="\$$v"
1770 done
1771
1772 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1773
1774 die_unknown(){
1775     echo "Unknown option \"$1\"."
1776     echo "See $0 --help for available options."
1777     exit 1
1778 }
1779
1780 show_list() {
1781     suffix=_$1
1782     shift
1783     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1784     exit 0
1785 }
1786
1787 for opt do
1788     optval="${opt#*=}"
1789     case "$opt" in
1790     --extra-ldflags=*) add_ldflags $optval
1791     ;;
1792     --extra-libs=*) add_extralibs $optval
1793     ;;
1794     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1795     ;;
1796     --enable-debug=*) debuglevel="$optval"
1797     ;;
1798     --disable-everything)
1799     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1800     ;;
1801     --enable-*=*|--disable-*=*)
1802     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1803     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1804     eval list=\$$(toupper $thing)_LIST
1805     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1806     $action $(filter "$name" $list)
1807     ;;
1808     --enable-?*|--disable-?*)
1809     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1810     if is_in $option $COMPONENT_LIST; then
1811         test $action = disable && action=unset
1812         eval $action \$$(toupper ${option%s})_LIST
1813     elif is_in $option $CMDLINE_SELECT; then
1814         $action $option
1815     else
1816         die_unknown $opt
1817     fi
1818     ;;
1819     --list-*)
1820         NAME="${opt#--list-}"
1821         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1822         NAME=${NAME%s}
1823         eval show_list $NAME \$$(toupper $NAME)_LIST
1824     ;;
1825     --help|-h) show_help
1826     ;;
1827     *)
1828     optname="${opt%%=*}"
1829     optname="${optname#--}"
1830     optname=$(echo "$optname" | sed 's/-/_/g')
1831     if is_in $optname $CMDLINE_SET; then
1832         eval $optname='$optval'
1833     elif is_in $optname $CMDLINE_APPEND; then
1834         append $optname "$optval"
1835     else
1836          die_unknown $opt
1837     fi
1838     ;;
1839     esac
1840 done
1841
1842 disabled logging && logfile=/dev/null
1843
1844 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1845 set >> $logfile
1846
1847 test -n "$cross_prefix" && enable cross_compile
1848
1849 if enabled cross_compile; then
1850     test -n "$arch" && test -n "$target_os" ||
1851         die "Must specify target arch and OS when cross-compiling"
1852 fi
1853
1854 set_default arch target_os
1855
1856 ar_default="${cross_prefix}${ar_default}"
1857 cc_default="${cross_prefix}${cc_default}"
1858 nm_default="${cross_prefix}${nm_default}"
1859 pkg_config_default="${cross_prefix}${pkg_config_default}"
1860 ranlib="${cross_prefix}${ranlib}"
1861 strip_default="${cross_prefix}${strip_default}"
1862
1863 sysinclude_default="${sysroot}/usr/include"
1864
1865 set_default cc nm pkg_config strip sysinclude
1866 enabled cross_compile || host_cc_default=$cc
1867 set_default host_cc
1868
1869 if ! $pkg_config --version >/dev/null 2>&1; then
1870     warn "$pkg_config not found, library detection may fail."
1871     pkg_config=false
1872 fi
1873
1874 exesuf() {
1875     case $1 in
1876         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1877     esac
1878 }
1879
1880 EXESUF=$(exesuf $target_os)
1881 HOSTEXESUF=$(exesuf $host_os)
1882
1883 # set temporary file name
1884 : ${TMPDIR:=$TEMPDIR}
1885 : ${TMPDIR:=$TMP}
1886 : ${TMPDIR:=/tmp}
1887
1888 if ! check_cmd mktemp -u XXXXXX; then
1889     # simple replacement for missing mktemp
1890     # NOT SAFE FOR GENERAL USE
1891     mktemp(){
1892         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1893     }
1894 fi
1895
1896 tmpfile(){
1897     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1898         (set -C; exec > $tmp) 2>/dev/null ||
1899         die "Unable to create temporary file in $TMPDIR."
1900     append TMPFILES $tmp
1901     eval $1=$tmp
1902 }
1903
1904 trap 'rm -f -- $TMPFILES' EXIT
1905
1906 tmpfile TMPC  .c
1907 tmpfile TMPE  $EXESUF
1908 tmpfile TMPH  .h
1909 tmpfile TMPO  .o
1910 tmpfile TMPS  .S
1911 tmpfile TMPV  .ver
1912 tmpfile TMPSH .sh
1913 tmpfile TMPASM .asm
1914
1915 unset -f mktemp
1916
1917 chmod +x $TMPE
1918
1919 # make sure we can execute files in $TMPDIR
1920 cat > $TMPSH 2>> $logfile <<EOF
1921 #! /bin/sh
1922 EOF
1923 chmod +x $TMPSH >> $logfile 2>&1
1924 if ! $TMPSH >> $logfile 2>&1; then
1925     cat <<EOF
1926 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1927 variable to another directory and make sure that it is not mounted noexec.
1928 EOF
1929     die "Sanity test failed."
1930 fi
1931
1932 filter_cflags=echo
1933 filter_cppflags=echo
1934 filter_asflags=echo
1935
1936 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1937     cc_type=llvm_gcc
1938     cc_version=__VERSION__
1939     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1940     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1941     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1942     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1943     speed_cflags='-O3'
1944     size_cflags='-Os'
1945 elif $cc -v 2>&1 | grep -qi ^gcc; then
1946     cc_type=gcc
1947     cc_version=__VERSION__
1948     gcc_version=$($cc --version | head -n1)
1949     gcc_basever=$($cc -dumpversion)
1950     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1951     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1952     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1953     if ! $cc -dumpversion | grep -q '^2\.'; then
1954         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1955         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1956     fi
1957     speed_cflags='-O3'
1958     size_cflags='-Os'
1959 elif $cc --version 2>/dev/null | grep -q Intel; then
1960     cc_type=icc
1961     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1962     cc_ident=$($cc --version | head -n1)
1963     icc_version=$($cc -dumpversion)
1964     CC_DEPFLAGS='-MMD'
1965     AS_DEPFLAGS='-MMD'
1966     speed_cflags='-O3'
1967     size_cflags='-Os'
1968     noopt_cflags='-O1'
1969 elif $cc -v 2>&1 | grep -q xlc; then
1970     cc_type=xlc
1971     cc_version="AV_STRINGIFY(__IBMC__)"
1972     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1973     speed_cflags='-O5'
1974     size_cflags='-O5 -qcompact'
1975 elif $cc -V 2>/dev/null | grep -q Compaq; then
1976     cc_type=ccc
1977     cc_version="AV_STRINGIFY(__DECC_VER)"
1978     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1979     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1980     debuglevel=3
1981     add_ldflags -Wl,-z,now # calls to libots crash without this
1982     speed_cflags='-fast'
1983     size_cflags='-O1'
1984 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1985     test -d "$sysroot" || die "No valid sysroot specified."
1986     cc_type=armcc
1987     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1988     cc_ident=$($cc --vsn | head -n1)
1989     armcc_conf="$PWD/armcc.conf"
1990     $cc --arm_linux_configure                 \
1991         --arm_linux_config_file="$armcc_conf" \
1992         --configure_sysroot="$sysroot"        \
1993         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1994         die "Error creating armcc configuration file."
1995     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1996     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1997     as_default="${cross_prefix}gcc"
1998     CC_DEPFLAGS='-MMD'
1999     AS_DEPFLAGS='-MMD'
2000     speed_cflags='-O3'
2001     size_cflags='-Os'
2002     filter_asflags="filter_out -W${armcc_opt}*"
2003 elif $cc -version 2>/dev/null | grep -q TMS470; then
2004     cc_type=tms470
2005     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2006     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2007     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2008     CC_O='-fr=$(@D)'
2009     as_default="${cross_prefix}gcc"
2010     ld_default="${cross_prefix}gcc"
2011     TMPO=$(basename $TMPC .c).o
2012     append TMPFILES $TMPO
2013     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2014     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2015     AS_DEPFLAGS='-MMD'
2016     speed_cflags='-O3 -mf=5'
2017     size_cflags='-O3 -mf=2'
2018     filter_cflags=tms470_flags
2019     tms470_flags(){
2020         for flag; do
2021             case $flag in
2022                 -march=*|-mcpu=*)
2023                     case "${flag#*=}" in
2024                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2025                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2026                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2027                         armv6*|arm11*)          echo -mv=6   ;;
2028                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2029                                                 echo -mv=5e  ;;
2030                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2031                     esac
2032                     ;;
2033                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2034                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2035                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2036                 -msoft-float)   echo --float_support=vfplib       ;;
2037                 -O[0-3]|-mf=*)  echo $flag                        ;;
2038                 -g)             echo -g -mn                       ;;
2039                 -pds=*)         echo $flag                        ;;
2040             esac
2041         done
2042     }
2043 elif $cc -v 2>&1 | grep -q clang; then
2044     cc_type=clang
2045     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2046         cc_version=__clang_version__ || cc_version=__VERSION__
2047     cc_ident=$($cc --version | head -n1)
2048     CC_DEPFLAGS='-MMD'
2049     AS_DEPFLAGS='-MMD'
2050     speed_cflags='-O3'
2051     size_cflags='-Os'
2052 elif $cc -V 2>&1 | grep -q Sun; then
2053     cc_type=suncc
2054     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2055     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2056     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2057     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2058     speed_cflags='-O5'
2059     size_cflags='-O5 -xspace'
2060     filter_cflags=suncc_flags
2061     suncc_flags(){
2062         for flag; do
2063             case $flag in
2064                 -march=*|-mcpu=*)
2065                     case "${flag#*=}" in
2066                         native)                   echo -xtarget=native       ;;
2067                         v9|niagara)               echo -xarch=sparc          ;;
2068                         ultrasparc)               echo -xarch=sparcvis       ;;
2069                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2070                         i586|pentium)             echo -xchip=pentium        ;;
2071                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2072                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2073                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2074                         pentium4*)          echo -xtarget=pentium4           ;;
2075                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2076                         *-sse3)             echo -xarch=sse3                 ;;
2077                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2078                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2079                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2080                         k8|opteron|athlon64|athlon-fx)
2081                                                   echo -xarch=sse2a          ;;
2082                         athlon*)                  echo -xarch=pentium_proa   ;;
2083                     esac
2084                     ;;
2085                 -std=c99)             echo -xc99              ;;
2086                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2087                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2088                 -W*,*)                echo $flag              ;;
2089                 -f*-*|-W*)                                    ;;
2090                 *)                    echo $flag              ;;
2091             esac
2092         done
2093     }
2094 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2095     cc_type=pathscale
2096     cc_version=__PATHSCALE__
2097     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2098     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2099     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2100     speed_cflags='-O2'
2101     size_cflags='-Os'
2102 elif $cc -v 2>&1 | grep -q Open64; then
2103     cc_type=open64
2104     cc_version=__OPEN64__
2105     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2106     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2107     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2108     speed_cflags='-O2'
2109     size_cflags='-Os'
2110 fi
2111
2112 test -n "$cc_type" && enable $cc_type ||
2113     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2114
2115 : ${as_default:=$cc}
2116 : ${dep_cc_default:=$cc}
2117 : ${ld_default:=$cc}
2118 set_default ar as dep_cc ld
2119
2120 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2121 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2122
2123 add_cflags $extra_cflags
2124 add_asflags $extra_cflags
2125
2126 if test -n "$sysroot"; then
2127     case "$cc_type" in
2128         gcc|llvm_gcc|clang)
2129             add_cppflags --sysroot="$sysroot"
2130             add_ldflags --sysroot="$sysroot"
2131         ;;
2132         tms470)
2133             add_cppflags -I"$sysinclude"
2134             add_ldflags  --sysroot="$sysroot"
2135         ;;
2136     esac
2137 fi
2138
2139 if test "$cpu" = host; then
2140     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2141
2142     case "$cc_type" in
2143         gcc|llvm_gcc)
2144             check_native(){
2145                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2146                 sed -n "/$1=/{
2147                             s/.*$1=\\([^ ]*\\).*/\\1/
2148                             p
2149                             q
2150                         }" $TMPE
2151             }
2152             cpu=$(check_native -march || check_native -mcpu)
2153         ;;
2154     esac
2155
2156     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2157 fi
2158
2159 # Deal with common $arch aliases
2160 case "$arch" in
2161     arm*)
2162         arch="arm"
2163     ;;
2164     mips|mipsel|IP*)
2165         arch="mips"
2166     ;;
2167     mips64*)
2168         arch="mips"
2169         subarch="mips64"
2170     ;;
2171     parisc|hppa)
2172         arch="parisc"
2173     ;;
2174     parisc64|hppa64)
2175         arch="parisc"
2176         subarch="parisc64"
2177     ;;
2178     "Power Macintosh"|ppc|powerpc)
2179         arch="ppc"
2180     ;;
2181     ppc64|powerpc64)
2182         arch="ppc"
2183         subarch="ppc64"
2184     ;;
2185     s390|s390x)
2186         arch="s390"
2187     ;;
2188     sh4|sh)
2189         arch="sh4"
2190     ;;
2191     sun4u|sparc64)
2192         arch="sparc"
2193         subarch="sparc64"
2194     ;;
2195     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2196         arch="x86"
2197     ;;
2198 esac
2199
2200 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2201 enable $arch
2202
2203 # Add processor-specific flags
2204 if test "$cpu" = generic; then
2205     : do nothing
2206 elif enabled ppc; then
2207
2208     case $(tolower $cpu) in
2209         601|ppc601|powerpc601)
2210             cpuflags="-mcpu=601"
2211             disable altivec
2212         ;;
2213         603*|ppc603*|powerpc603*)
2214             cpuflags="-mcpu=603"
2215             disable altivec
2216         ;;
2217         604*|ppc604*|powerpc604*)
2218             cpuflags="-mcpu=604"
2219             disable altivec
2220         ;;
2221         g3|75*|ppc75*|powerpc75*)
2222             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2223             disable altivec
2224         ;;
2225         g4|745*|ppc745*|powerpc745*)
2226             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2227         ;;
2228         74*|ppc74*|powerpc74*)
2229             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2230         ;;
2231         g5|970|ppc970|powerpc970|power4*)
2232             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2233         ;;
2234         cell)
2235             cpuflags="-mcpu=cell"
2236             enable ldbrx
2237         ;;
2238         e500v2)
2239             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2240             disable altivec
2241         ;;
2242         e500)
2243             cpuflags="-mcpu=8540 -mhard-float"
2244             disable altivec
2245         ;;
2246     esac
2247
2248 elif enabled x86; then
2249
2250     case $cpu in
2251         i[345]86|pentium)
2252             cpuflags="-march=$cpu"
2253             disable mmx
2254         ;;
2255         # targets that do NOT support conditional mov (cmov)
2256         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2257             cpuflags="-march=$cpu"
2258             disable cmov
2259         ;;
2260         # targets that do support conditional mov (cmov)
2261         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2262             cpuflags="-march=$cpu"
2263             enable cmov
2264             enable fast_cmov
2265         ;;
2266         # targets that do support conditional mov but on which it's slow
2267         pentium4|pentium4m|prescott|nocona)
2268             cpuflags="-march=$cpu"
2269             enable cmov
2270             disable fast_cmov
2271         ;;
2272     esac
2273
2274 elif enabled sparc; then
2275
2276     case $cpu in
2277         niagara)
2278             cpuflags="-mcpu=$cpu"
2279             disable vis
2280         ;;
2281         sparc64)
2282             cpuflags="-mcpu=v9"
2283         ;;
2284     esac
2285
2286 elif enabled arm; then
2287
2288     case $cpu in
2289         armv*)
2290             cpuflags="-march=$cpu"
2291             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2292         ;;
2293         *)
2294             cpuflags="-mcpu=$cpu"
2295             case $cpu in
2296                 cortex-a*)                               subarch=armv7a  ;;
2297                 cortex-r*)                               subarch=armv7r  ;;
2298                 cortex-m*)                               subarch=armv7m  ;;
2299                 arm11*)                                  subarch=armv6   ;;
2300                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2301                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2302             esac
2303         ;;
2304     esac
2305
2306 elif enabled alpha; then
2307
2308     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2309
2310 elif enabled bfin; then
2311
2312     cpuflags="-mcpu=$cpu"
2313
2314 elif enabled mips; then
2315
2316     cpuflags="-march=$cpu"
2317
2318 elif enabled avr32; then
2319
2320     case $cpu in
2321         ap7[02]0[0-2])
2322             subarch="avr32_ap"
2323             cpuflags="-mpart=$cpu"
2324         ;;
2325         ap)
2326             subarch="avr32_ap"
2327             cpuflags="-march=$cpu"
2328         ;;
2329         uc3[ab]*)
2330             subarch="avr32_uc"
2331             cpuflags="-mcpu=$cpu"
2332         ;;
2333         uc)
2334             subarch="avr32_uc"
2335             cpuflags="-march=$cpu"
2336         ;;
2337     esac
2338
2339 fi
2340
2341 add_cflags $cpuflags
2342 add_asflags $cpuflags
2343
2344 # compiler sanity check
2345 check_exec <<EOF
2346 int main(void){ return 0; }
2347 EOF
2348 if test "$?" != 0; then
2349     echo "$cc is unable to create an executable file."
2350     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2351         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2352         echo "Only do this if you know what cross compiling means."
2353     fi
2354     die "C compiler test failed."
2355 fi
2356
2357 add_cppflags -D_ISOC99_SOURCE
2358 check_cflags -std=c99
2359 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2360 #include <stdlib.h>
2361 EOF
2362 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2363 #include <stdlib.h>
2364 EOF
2365
2366 check_host_cflags -std=c99
2367 check_host_cflags -Wall
2368
2369 case "$arch" in
2370     alpha|ia64|mips|parisc|sparc)
2371         spic=$shared
2372     ;;
2373     x86)
2374         subarch="x86_32"
2375         check_cc <<EOF && subarch="x86_64"
2376         int test[(int)sizeof(char*) - 7];
2377 EOF
2378         if test "$subarch" = "x86_64"; then
2379             spic=$shared
2380         fi
2381     ;;
2382 esac
2383
2384 enable $subarch
2385 enabled spic && enable pic
2386
2387 # OS specific
2388 case $target_os in
2389     haiku)
2390         prefix_default="/boot/common"
2391         network_extralibs="-lnetwork"
2392         host_libs=
2393         ;;
2394     sunos)
2395         FFSERVERLDFLAGS=""
2396         SHFLAGS='-shared -Wl,-h,$$(@F)'
2397         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2398         network_extralibs="-lsocket -lnsl"
2399         add_cppflags -D__EXTENSIONS__
2400         nm_opts='-P -g'
2401         ;;
2402     netbsd)
2403         disable symver
2404         oss_indev_extralibs="-lossaudio"
2405         oss_outdev_extralibs="-lossaudio"
2406         ;;
2407     openbsd)
2408         enable malloc_aligned
2409         # On OpenBSD 4.5. the compiler does not use PIC unless
2410         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2411         # however the generated executable will not do anything
2412         # (simply quits with exit-code 1, no crash, no output).
2413         # Thus explicitly enable PIC here.
2414         enable pic
2415         disable symver
2416         SHFLAGS='-shared'
2417         oss_indev_extralibs="-lossaudio"
2418         oss_outdev_extralibs="-lossaudio"
2419         ;;
2420     dragonfly)
2421         enable malloc_aligned
2422         disable symver
2423         ;;
2424     freebsd)
2425         enable malloc_aligned
2426         ;;
2427     bsd/os)
2428         add_extralibs -lpoll -lgnugetopt
2429         strip="strip -d"
2430         ;;
2431     darwin)
2432         enable malloc_aligned
2433         gas="gas-preprocessor.pl $cc"
2434         enabled ppc && add_asflags -force_cpusubtype_ALL
2435         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2436         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2437         strip="${strip} -x"
2438         add_ldflags -Wl,-dynamic,-search_paths_first
2439         SLIBSUF=".dylib"
2440         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2441         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2442         FFSERVERLDFLAGS=-Wl,-bind_at_load
2443         objformat="macho"
2444         enabled x86_64 && objformat="macho64"
2445         enabled_any pic shared ||
2446             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2447         ;;
2448     mingw32*)
2449         if test $target_os = "mingw32ce"; then
2450             disable network
2451         else
2452             target_os=mingw32
2453         fi
2454         LIBTARGET=i386
2455         if enabled x86_64; then
2456             enable malloc_aligned
2457             LIBTARGET=x64
2458         elif enabled arm; then
2459             LIBTARGET=arm-wince
2460         fi
2461         shlibdir_default="$bindir_default"
2462         SLIBPREF=""
2463         SLIBSUF=".dll"
2464         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2465         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2466         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2467         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2468             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2469             install -d "$(LIBDIR)"; \
2470             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2471         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2472         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'
2473         objformat="win32"
2474         enable dos_paths
2475         check_cflags -fno-common
2476         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2477                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2478                 die "ERROR: MinGW runtime version must be >= 3.15."
2479         add_cppflags -U__STRICT_ANSI__
2480         ;;
2481     cygwin*)
2482         target_os=cygwin
2483         shlibdir_default="$bindir_default"
2484         SLIBPREF="cyg"
2485         SLIBSUF=".dll"
2486         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2487         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2488         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2489         objformat="win32"
2490         enable dos_paths
2491         check_cflags -fno-common
2492         add_cppflags -U__STRICT_ANSI__
2493         ;;
2494     *-dos|freedos|opendos)
2495         network_extralibs="-lsocket"
2496         objformat="coff"
2497         enable dos_paths
2498         add_cppflags -U__STRICT_ANSI__
2499         ;;
2500     linux)
2501         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2502         enable dv1394
2503         ;;
2504     irix*)
2505         target_os=irix
2506         ranlib="echo ignoring ranlib"
2507         ;;
2508     os/2*)
2509         strip="lxlite -CS"
2510         ln_s="cp -f"
2511         objformat="aout"
2512         add_cppflags -D_GNU_SOURCE
2513         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2514         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2515         FFSERVERLDFLAGS=""
2516         LIBSUF="_s.a"
2517         SLIBPREF=""
2518         SLIBSUF=".dll"
2519         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2520         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2521         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2522           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2523           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2524           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2525           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2526           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2527         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2528           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2529         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2530         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2531         enable dos_paths
2532         ;;
2533     gnu/kfreebsd)
2534         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2535         ;;
2536     gnu)
2537         ;;
2538     qnx)
2539         add_cppflags -D_QNX_SOURCE
2540         network_extralibs="-lsocket"
2541         ;;
2542     symbian)
2543         SLIBSUF=".dll"
2544         enable dos_paths
2545         add_cflags --include=$sysinclude/gcce/gcce.h
2546         ;;
2547     none)
2548         ;;
2549     *)
2550         die "Unknown OS '$target_os'."
2551         ;;
2552 esac
2553
2554 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2555
2556 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2557
2558 set_default $PATHS_LIST
2559
2560 # we need to build at least one lib type
2561 if ! enabled_any static shared; then
2562     cat <<EOF
2563 At least one library type must be built.
2564 Specify --enable-static to build the static libraries or --enable-shared to
2565 build the shared libraries as well. To only build the shared libraries specify
2566 --disable-static in addition to --enable-shared.
2567 EOF
2568     exit 1;
2569 fi
2570
2571 disabled static && LIBNAME=""
2572
2573 die_license_disabled() {
2574     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2575 }
2576
2577 die_license_disabled gpl libx264
2578 die_license_disabled gpl libxavs
2579 die_license_disabled gpl libxvid
2580 die_license_disabled gpl x11grab
2581
2582 die_license_disabled nonfree libfaac
2583
2584 die_license_disabled version3 libopencore_amrnb
2585 die_license_disabled version3 libopencore_amrwb
2586 die_license_disabled version3 libvo_aacenc
2587 die_license_disabled version3 libvo_amrwbenc
2588
2589 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2590
2591 disabled optimizations || check_cflags -fomit-frame-pointer
2592
2593 enable_pic() {
2594     enable pic
2595     add_cppflags -DPIC
2596     add_cflags   -fPIC
2597     add_asflags  -fPIC
2598 }
2599
2600 enabled pic && enable_pic
2601
2602 check_cc <<EOF || die "Symbol mangling check failed."
2603 int ff_extern;
2604 EOF
2605 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2606 extern_prefix=${sym%%ff_extern*}
2607
2608 check_cc <<EOF && enable inline_asm
2609 void foo(void) { __asm__ volatile ("" ::); }
2610 EOF
2611
2612 _restrict=
2613 for restrict_keyword in restrict __restrict__ __restrict; do
2614     check_cc <<EOF && _restrict=$restrict_keyword && break
2615 void foo(char * $restrict_keyword p);
2616 EOF
2617 done
2618
2619 check_cc <<EOF && enable attribute_packed
2620 struct { int x; } __attribute__((packed)) x;
2621 EOF
2622
2623 check_cc <<EOF && enable attribute_may_alias
2624 union { int x; } __attribute__((may_alias)) x;
2625 EOF
2626
2627 check_cc <<EOF || die "endian test failed"
2628 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2629 EOF
2630 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2631
2632 if enabled alpha; then
2633
2634     check_cflags -mieee
2635
2636 elif enabled arm; then
2637
2638     check_cflags -marm
2639     nogas=die
2640
2641     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2642         enable vfp_args
2643     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2644         case "${cross_prefix:-$cc}" in
2645             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2646             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2647 __asm__ (".eabi_attribute 28, 1");
2648 int main(void) { return 0; }
2649 EOF
2650         esac
2651         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2652     fi
2653
2654     # We have to check if pld is a nop and disable it.
2655     check_asm pld '"pld [r0]"'
2656
2657     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2658     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2659     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2660     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2661     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2662     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2663     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2664
2665     enabled_all armv6t2 shared !pic && enable_pic
2666
2667 elif enabled mips; then
2668
2669     check_asm loongson '"dmult.g $1, $2, $3"'
2670     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2671
2672 elif enabled ppc; then
2673
2674     enable local_aligned_8 local_aligned_16
2675
2676     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2677     check_asm ibm_asm   '"add 0, 0, 0"'
2678     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2679     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2680
2681     # AltiVec flags: The FSF version of GCC differs from the Apple version
2682     if enabled altivec; then
2683         nogas=warn
2684         check_cflags -maltivec -mabi=altivec &&
2685         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2686         check_cflags -faltivec
2687
2688         # check if our compiler supports Motorola AltiVec C API
2689         check_cc <<EOF || disable altivec
2690 $inc_altivec_h
2691 int main(void) {
2692     vector signed int v1, v2, v3;
2693     v1 = vec_add(v2,v3);
2694     return 0;
2695 }
2696 EOF
2697
2698         # check if our compiler supports braces for vector declarations
2699         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2700 $inc_altivec_h
2701 int main (void) { (vector int) {1}; return 0; }
2702 EOF
2703     fi
2704
2705 elif enabled sparc; then
2706
2707     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2708         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2709
2710 elif enabled x86; then
2711
2712     enable local_aligned_8 local_aligned_16
2713
2714     # check whether EBP is available on x86
2715     # As 'i' is stored on the stack, this program will crash
2716     # if the base pointer is used to access it because the
2717     # base pointer is cleared in the inline assembly code.
2718     check_exec_crash <<EOF && enable ebp_available
2719     volatile int i=0;
2720     __asm__ volatile (
2721         "xorl %%ebp, %%ebp"
2722     ::: "%ebp");
2723     return i;
2724 EOF
2725
2726     # check whether EBX is available on x86
2727     check_asm ebx_available '""::"b"(0)' &&
2728         check_asm ebx_available '"":::"%ebx"'
2729
2730     # check whether xmm clobbers are supported
2731     check_asm xmm_clobbers '"":::"%xmm0"'
2732
2733     # check whether more than 10 operands are supported
2734     check_cc <<EOF && enable ten_operands
2735 int main(void) {
2736     int x=0;
2737     __asm__ volatile(
2738         ""
2739         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2740     );
2741     return 0;
2742 }
2743 EOF
2744
2745     # check whether binutils is new enough to compile SSSE3/MMX2
2746     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2747     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2748
2749     check_asm bswap '"bswap %%eax" ::: "%eax"'
2750
2751     if ! disabled_any asm mmx yasm; then
2752         if check_cmd $yasmexe --version; then
2753             enabled x86_64 && yasm_extra="-m amd64"
2754             yasm_debug="-g dwarf2"
2755         elif check_cmd nasm -v; then
2756             yasmexe=nasm
2757             yasm_debug="-g -F dwarf"
2758             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2759         fi
2760
2761         YASMFLAGS="-f $objformat $yasm_extra"
2762         enabled pic               && append YASMFLAGS "-DPIC"
2763         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2764         case "$objformat" in
2765             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2766         esac
2767
2768         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2769             die "yasm not found, use --disable-yasm for a crippled build"
2770         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2771     fi
2772
2773     case "$cpu" in
2774         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2775             disable fast_clz
2776         ;;
2777     esac
2778
2779 fi
2780
2781 if enabled asm; then
2782     as=${gas:=$as}
2783     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2784         $nogas "GNU assembler not found, install gas-preprocessor"
2785 fi
2786
2787 check_ldflags -Wl,--as-needed
2788
2789 if check_func dlopen; then
2790     ldl=
2791 elif check_func dlopen -ldl; then
2792     ldl=-ldl
2793 fi
2794
2795 if enabled network; then
2796     check_type "sys/types.h sys/socket.h" socklen_t
2797     check_type netdb.h "struct addrinfo"
2798     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2799     check_type netinet/in.h "struct sockaddr_in6"
2800     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2801     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2802     # Prefer arpa/inet.h over winsock2
2803     if check_header arpa/inet.h ; then
2804         check_func closesocket
2805     elif check_header winsock2.h ; then
2806         check_func_headers winsock2.h closesocket -lws2 && \
2807             network_extralibs="-lws2" || \
2808         { check_func_headers winsock2.h closesocket -lws2_32 && \
2809             network_extralibs="-lws2_32"; }
2810         check_type ws2tcpip.h socklen_t
2811         check_type ws2tcpip.h "struct addrinfo"
2812         check_type ws2tcpip.h "struct ipv6_mreq"
2813         check_type ws2tcpip.h "struct sockaddr_in6"
2814         check_type ws2tcpip.h "struct sockaddr_storage"
2815         check_struct winsock2.h "struct sockaddr" sa_len
2816     else
2817         disable network
2818     fi
2819 fi
2820
2821 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2822 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2823
2824 check_func  fcntl
2825 check_func  fork
2826 check_func  getaddrinfo $network_extralibs
2827 check_func  gethrtime
2828 check_func  getrusage
2829 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2830 check_func  inet_aton $network_extralibs
2831 check_func  isatty
2832 check_func  localtime_r
2833 check_func  ${malloc_prefix}memalign            && enable memalign
2834 check_func  mkstemp
2835 check_func  mmap
2836 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2837 check_func  setrlimit
2838 check_func  strerror_r
2839 check_func  strtok_r
2840 check_func_headers conio.h kbhit
2841 check_func_headers io.h setmode
2842 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2843 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2844 check_func_headers windows.h GetProcessTimes
2845 check_func_headers windows.h MapViewOfFile
2846 check_func_headers windows.h VirtualAlloc
2847
2848 check_header dlfcn.h
2849 check_header dxva2api.h
2850 check_header libcrystalhd/libcrystalhd_if.h
2851 check_header malloc.h
2852 check_header poll.h
2853 check_header sys/mman.h
2854 check_header sys/resource.h
2855 check_header sys/select.h
2856 check_header termios.h
2857 check_header vdpau/vdpau.h
2858 check_header vdpau/vdpau_x11.h
2859 check_header X11/extensions/XvMClib.h
2860
2861 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2862
2863 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2864 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2865
2866 # check for some common methods of building with pthread support
2867 # do this before the optional library checks as some of them require pthreads
2868 if ! disabled pthreads && ! enabled w32threads; then
2869     enable pthreads
2870     if check_func pthread_create; then
2871         :
2872     elif check_func pthread_create -pthread; then
2873         add_cflags -pthread
2874         add_extralibs -pthread
2875     elif check_func pthread_create -pthreads; then
2876         add_cflags -pthreads
2877         add_extralibs -pthreads
2878     elif check_func pthread_create -lpthreadGC2; then
2879         add_extralibs -lpthreadGC2
2880     elif ! check_lib pthread.h pthread_create -lpthread; then
2881         disable pthreads
2882     fi
2883 fi
2884
2885 for thread in $THREADS_LIST; do
2886     if enabled $thread; then
2887         test -n "$thread_type" &&
2888             die "ERROR: Only one thread type must be selected." ||
2889             thread_type="$thread"
2890     fi
2891 done
2892
2893 check_lib math.h sin -lm && LIBM="-lm"
2894 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2895 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2896
2897 check_mathfunc exp2
2898 check_mathfunc exp2f
2899 check_mathfunc llrint
2900 check_mathfunc llrintf
2901 check_mathfunc log2
2902 check_mathfunc log2f
2903 check_mathfunc lrint
2904 check_mathfunc lrintf
2905 check_mathfunc round
2906 check_mathfunc roundf
2907 check_mathfunc trunc
2908 check_mathfunc truncf
2909
2910 # these are off by default, so fail if requested and not available
2911 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2912 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2913 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2914 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2915 enabled libdirac   && require_pkg_config dirac                          \
2916     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2917     "dirac_decoder_init dirac_encoder_init"
2918 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2919 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2920 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2921 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2922 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2923 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2924 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2925 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2926 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2927 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2928 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2929 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2930 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2931 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2932 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2933 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2934 enabled libvpx     && {
2935     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2936                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2937     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2938                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2939 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2940                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2941                         die "ERROR: libx264 version must be >= 0.115."; }
2942 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2943 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2944 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2945
2946 SDL_CONFIG="${cross_prefix}sdl-config"
2947 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2948     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2949     enable sdl &&
2950     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2951 else
2952   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2953     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2954     sdl_libs=$("${SDL_CONFIG}" --libs)
2955     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2956     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2957     enable sdl &&
2958     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2959   fi
2960 fi
2961 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2962
2963 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2964
2965 check_header linux/fb.h
2966 check_header linux/videodev.h
2967 check_header linux/videodev2.h
2968 check_header sys/videoio.h
2969
2970 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2971 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2972 # w32api 3.12 had it defined wrong
2973 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2974
2975 check_type "dshow.h" IBaseFilter
2976
2977 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2978 { check_header dev/bktr/ioctl_meteor.h &&
2979   check_header dev/bktr/ioctl_bt848.h; } ||
2980 { check_header machine/ioctl_meteor.h &&
2981   check_header machine/ioctl_bt848.h; } ||
2982 { check_header dev/video/meteor/ioctl_meteor.h &&
2983   check_header dev/video/bktr/ioctl_bt848.h; } ||
2984 check_header dev/ic/bt8xx.h
2985
2986 check_header sndio.h
2987 if check_struct sys/soundcard.h audio_buf_info bytes; then
2988     enable_safe sys/soundcard.h
2989 else
2990     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2991     #include <sys/soundcard.h>
2992     audio_buf_info abc;
2993 EOF
2994 fi
2995 check_header soundcard.h
2996
2997 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2998
2999 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3000
3001 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3002
3003 enabled x11grab                         &&
3004 check_header X11/Xlib.h                 &&
3005 check_header X11/extensions/XShm.h      &&
3006 check_header X11/extensions/Xfixes.h    &&
3007 check_func XOpenDisplay -lX11           &&
3008 check_func XShmCreateImage -lX11 -lXext &&
3009 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3010
3011 if ! disabled vaapi; then
3012     check_lib va/va.h vaInitialize -lva && {
3013         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3014         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3015     } || disable vaapi
3016 fi
3017
3018 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3019 check_cpp_condition \
3020     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3021     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3022       disable vdpau; }
3023 fi
3024
3025 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3026
3027 # add some useful compiler flags if supported
3028 check_cflags -Wdeclaration-after-statement
3029 check_cflags -Wall
3030 check_cflags -Wno-parentheses
3031 check_cflags -Wno-switch
3032 check_cflags -Wdisabled-optimization
3033 check_cflags -Wpointer-arith
3034 check_cflags -Wredundant-decls
3035 check_cflags -Wno-pointer-sign
3036 check_cflags -Wcast-qual
3037 check_cflags -Wwrite-strings
3038 check_cflags -Wtype-limits
3039 check_cflags -Wundef
3040 check_cflags -Wmissing-prototypes
3041 check_cflags -Wno-pointer-to-int-cast
3042 enabled extra_warnings && check_cflags -Winline
3043
3044 # add some linker flags
3045 check_ldflags -Wl,--warn-common
3046 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
3047 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3048
3049 echo "X{};" > $TMPV
3050 if test_ldflags -Wl,--version-script,$TMPV; then
3051     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3052     check_cc <<EOF && enable symver_asm_label
3053 void ff_foo(void) __asm__ ("av_foo@VERSION");
3054 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3055 EOF
3056     check_cc <<EOF && enable symver_gnu_asm
3057 __asm__(".symver ff_foo,av_foo@VERSION");
3058 void ff_foo(void) {}
3059 EOF
3060 fi
3061
3062 if enabled small; then
3063     add_cflags $size_cflags
3064     optimizations="small"
3065 elif enabled optimizations; then
3066     add_cflags $speed_cflags
3067 else
3068     add_cflags $noopt_cflags
3069 fi
3070 check_cflags -fno-math-errno
3071 check_cflags -fno-signed-zeros
3072
3073 if enabled icc; then
3074     # Just warnings, no remarks
3075     check_cflags -w1
3076     # -wd: Disable following warnings
3077     # 144, 167, 556: -Wno-pointer-sign
3078     # 1292: attribute "foo" ignored
3079     # 10006: ignoring unknown option -fno-signed-zeros
3080     # 10148: ignoring unknown option -Wno-parentheses
3081     # 10156: ignoring option '-W'; no argument required
3082     check_cflags -wd144,167,556,1292,10006,10148,10156
3083     # 11030: Warning unknown option --as-needed
3084     # 10156: ignoring option '-export'; no argument required
3085     check_ldflags -wd10156,11030
3086     # Allow to compile with optimizations
3087     check_ldflags -march=$cpu
3088     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3089     enable ebp_available
3090     if enabled x86_32; then
3091         test ${icc_version%%.*} -ge 11 && \
3092             check_cflags -falign-stack=maintain-16-byte || \
3093             disable aligned_stack
3094     fi
3095 elif enabled ccc; then
3096     # disable some annoying warnings
3097     add_cflags -msg_disable cvtu32to64
3098     add_cflags -msg_disable embedcomment
3099     add_cflags -msg_disable needconstext
3100     add_cflags -msg_disable nomainieee
3101     add_cflags -msg_disable ptrmismatch1
3102     add_cflags -msg_disable unreachcode
3103 elif enabled gcc; then
3104     check_cflags -fno-tree-vectorize
3105     check_cflags -Werror=implicit-function-declaration
3106     check_cflags -Werror=missing-prototypes
3107 elif enabled llvm_gcc; then
3108     check_cflags -mllvm -stack-alignment=16
3109 elif enabled clang; then
3110     check_cflags -mllvm -stack-alignment=16
3111     check_cflags -Qunused-arguments
3112 elif enabled armcc; then
3113     # 2523: use of inline assembler is deprecated
3114     add_cflags -W${armcc_opt},--diag_suppress=2523
3115     add_cflags -W${armcc_opt},--diag_suppress=1207
3116     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3117     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3118 elif enabled tms470; then
3119     add_cflags -pds=824 -pds=837
3120 elif enabled pathscale; then
3121     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3122 fi
3123
3124 enabled_any $THREADS_LIST      && enable threads
3125
3126 check_deps $CONFIG_LIST       \
3127            $CONFIG_EXTRA      \
3128            $HAVE_LIST         \
3129            $DECODER_LIST      \
3130            $ENCODER_LIST      \
3131            $HWACCEL_LIST      \
3132            $PARSER_LIST       \
3133            $BSF_LIST          \
3134            $DEMUXER_LIST      \
3135            $MUXER_LIST        \
3136            $FILTER_LIST       \
3137            $INDEV_LIST        \
3138            $OUTDEV_LIST       \
3139            $PROTOCOL_LIST     \
3140            $ACODEC_TESTS      \
3141            $VCODEC_TESTS      \
3142            $LAVF_TESTS        \
3143            $LAVFI_TESTS       \
3144            $SEEK_TESTS        \
3145
3146 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3147
3148 ! enabled_any memalign posix_memalign malloc_aligned &&
3149     enabled_any $need_memalign && enable memalign_hack
3150
3151 echo "install prefix            $prefix"
3152 echo "source path               $source_path"
3153 echo "C compiler                $cc"
3154 echo "ARCH                      $arch ($cpu)"
3155 if test "$build_suffix" != ""; then
3156     echo "build suffix              $build_suffix"
3157 fi
3158 if test "$extra_version" != ""; then
3159     echo "version string suffix     $extra_version"
3160 fi
3161 echo "big-endian                ${bigendian-no}"
3162 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3163 if enabled x86; then
3164     echo "${yasmexe}                      ${yasm-no}"
3165     echo "MMX enabled               ${mmx-no}"
3166     echo "MMX2 enabled              ${mmx2-no}"
3167     echo "3DNow! enabled            ${amd3dnow-no}"
3168     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3169     echo "SSE enabled               ${sse-no}"
3170     echo "SSSE3 enabled             ${ssse3-no}"
3171     echo "AVX enabled               ${avx-no}"
3172     echo "CMOV enabled              ${cmov-no}"
3173     echo "CMOV is fast              ${fast_cmov-no}"
3174     echo "EBX available             ${ebx_available-no}"
3175     echo "EBP available             ${ebp_available-no}"
3176     echo "10 operands supported     ${ten_operands-no}"
3177 fi
3178 if enabled arm; then
3179     echo "ARMv5TE enabled           ${armv5te-no}"
3180     echo "ARMv6 enabled             ${armv6-no}"
3181     echo "ARMv6T2 enabled           ${armv6t2-no}"
3182     echo "ARM VFP enabled           ${armvfp-no}"
3183     echo "IWMMXT enabled            ${iwmmxt-no}"
3184     echo "NEON enabled              ${neon-no}"
3185 fi
3186 if enabled mips; then
3187     echo "MMI enabled               ${mmi-no}"
3188 fi
3189 if enabled ppc; then
3190     echo "AltiVec enabled           ${altivec-no}"
3191     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3192     echo "dcbzl available           ${dcbzl-no}"
3193 fi
3194 if enabled sparc; then
3195     echo "VIS enabled               ${vis-no}"
3196 fi
3197 echo "debug symbols             ${debug-no}"
3198 echo "strip symbols             ${stripping-no}"
3199 echo "optimizations             ${optimizations-no}"
3200 echo "static                    ${static-no}"
3201 echo "shared                    ${shared-no}"
3202 echo "postprocessing support    ${postproc-no}"
3203 echo "new filter support        ${avfilter-no}"
3204 echo "network support           ${network-no}"
3205 echo "threading support         ${thread_type-no}"
3206 echo "SDL support               ${sdl-no}"
3207 echo "Sun medialib support      ${mlib-no}"
3208 echo "AVISynth enabled          ${avisynth-no}"
3209 echo "libcelt enabled           ${libcelt-no}"
3210 echo "frei0r enabled            ${frei0r-no}"
3211 echo "libdc1394 support         ${libdc1394-no}"
3212 echo "libdirac enabled          ${libdirac-no}"
3213 echo "libfaac enabled           ${libfaac-no}"
3214 echo "libgsm enabled            ${libgsm-no}"
3215 echo "libmp3lame enabled        ${libmp3lame-no}"
3216 echo "libnut enabled            ${libnut-no}"
3217 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3218 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3219 echo "libopencv support         ${libopencv-no}"
3220 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3221 echo "librtmp enabled           ${librtmp-no}"
3222 echo "libschroedinger enabled   ${libschroedinger-no}"
3223 echo "libspeex enabled          ${libspeex-no}"
3224 echo "libtheora enabled         ${libtheora-no}"
3225 echo "libva enabled             ${vaapi-no}"
3226 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3227 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3228 echo "libvorbis enabled         ${libvorbis-no}"
3229 echo "libvpx enabled            ${libvpx-no}"
3230 echo "libx264 enabled           ${libx264-no}"
3231 echo "libxavs enabled           ${libxavs-no}"
3232 echo "libxvid enabled           ${libxvid-no}"
3233 echo "zlib enabled              ${zlib-no}"
3234 echo "bzlib enabled             ${bzlib-no}"
3235 echo
3236
3237 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3238     echo "Enabled ${type}s:"
3239     eval list=\$$(toupper $type)_LIST
3240     print_enabled '_*' $list | sort | pr -r -3 -t
3241     echo
3242 done
3243
3244 license="LGPL version 2.1 or later"
3245 if enabled nonfree; then
3246     license="nonfree and unredistributable"
3247 elif enabled gplv3; then
3248     license="GPL version 3 or later"
3249 elif enabled lgplv3; then
3250     license="LGPL version 3 or later"
3251 elif enabled gpl; then
3252     license="GPL version 2 or later"
3253 fi
3254
3255 echo "License: $license"
3256
3257 echo "Creating config.mak and config.h..."
3258
3259 # build tree in object directory if source path is different from current one
3260 if enabled source_path_used; then
3261     DIRS="
3262         doc
3263         libavcodec
3264         libavcodec/$arch
3265         libavdevice
3266         libavfilter
3267         libavfilter/$arch
3268         libavfilter/libmpcodecs
3269         libavfilter/libmpcodecs/libvo
3270         libavformat
3271         libavutil
3272         libavutil/$arch
3273         libpostproc
3274         libswscale
3275         libswscale/$arch
3276         tests
3277         tools
3278     "
3279     FILES="
3280         Makefile
3281         common.mak
3282         subdir.mak
3283         doc/texi2pod.pl
3284         libavcodec/Makefile
3285         libavcodec/${arch}/Makefile
3286         libavdevice/Makefile
3287         libavfilter/Makefile
3288         libavfilter/${arch}/Makefile
3289         libavformat/Makefile
3290         libavutil/Makefile
3291         libpostproc/Makefile
3292         libswscale/Makefile
3293     "
3294     map 'mkdir -p $v' $DIRS;
3295     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3296 fi
3297
3298 enabled stripping || strip="echo skipping strip"
3299
3300 config_files="$TMPH config.mak"
3301
3302 cat > config.mak <<EOF
3303 # Automatically generated by configure - do not modify!
3304 ifndef FFMPEG_CONFIG_MAK
3305 FFMPEG_CONFIG_MAK=1
3306 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3307 prefix=$prefix
3308 LIBDIR=\$(DESTDIR)$libdir
3309 SHLIBDIR=\$(DESTDIR)$shlibdir
3310 INCDIR=\$(DESTDIR)$incdir
3311 BINDIR=\$(DESTDIR)$bindir
3312 DATADIR=\$(DESTDIR)$datadir
3313 MANDIR=\$(DESTDIR)$mandir
3314 SRC_PATH="$source_path"
3315 SRC_PATH_BARE=$source_path
3316 CC_IDENT=$cc_ident
3317 ARCH=$arch
3318 CC=$cc
3319 AS=$as
3320 LD=$ld
3321 DEPCC=$dep_cc
3322 YASM=$yasmexe
3323 YASMDEP=$yasmexe
3324 AR=$ar
3325 RANLIB=$ranlib
3326 CP=cp -p
3327 LN_S=$ln_s
3328 STRIP=$strip
3329 CPPFLAGS=$CPPFLAGS
3330 CFLAGS=$CFLAGS
3331 ASFLAGS=$ASFLAGS
3332 CC_O=$CC_O
3333 LDFLAGS=$LDFLAGS
3334 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3335 SHFLAGS=$SHFLAGS
3336 YASMFLAGS=$YASMFLAGS
3337 BUILDSUF=$build_suffix
3338 FULLNAME=$FULLNAME
3339 LIBPREF=$LIBPREF
3340 LIBSUF=$LIBSUF
3341 LIBNAME=$LIBNAME
3342 SLIBPREF=$SLIBPREF
3343 SLIBSUF=$SLIBSUF
3344 EXESUF=$EXESUF
3345 EXTRA_VERSION=$extra_version
3346 DEPFLAGS=$DEPFLAGS
3347 CCDEP=$CCDEP
3348 ASDEP=$ASDEP
3349 CC_DEPFLAGS=$CC_DEPFLAGS
3350 AS_DEPFLAGS=$AS_DEPFLAGS
3351 HOSTCC=$host_cc
3352 HOSTCFLAGS=$host_cflags
3353 HOSTEXESUF=$HOSTEXESUF
3354 HOSTLDFLAGS=$host_ldflags
3355 HOSTLIBS=$host_libs
3356 TARGET_EXEC=$target_exec
3357 TARGET_PATH=$target_path
3358 SDL_LIBS=$sdl_libs
3359 SDL_CFLAGS=$sdl_cflags
3360 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3361 EXTRALIBS=$extralibs
3362 INSTALL=$install
3363 LIBTARGET=${LIBTARGET}
3364 SLIBNAME=${SLIBNAME}
3365 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3366 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3367 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3368 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3369 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3370 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3371 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3372 EOF
3373
3374 get_version(){
3375     name=$1
3376     file=$source_path/$2
3377     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3378     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3379     lcname=$(tolower $name)
3380     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3381     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3382 }
3383
3384 get_version LIBSWSCALE  libswscale/swscale.h
3385 get_version LIBPOSTPROC libpostproc/postprocess.h
3386 get_version LIBAVCODEC  libavcodec/version.h
3387 get_version LIBAVDEVICE libavdevice/avdevice.h
3388 get_version LIBAVFORMAT libavformat/version.h
3389 get_version LIBAVUTIL   libavutil/avutil.h
3390 get_version LIBAVFILTER libavfilter/avfilter.h
3391
3392 cat > $TMPH <<EOF
3393 /* Automatically generated by configure - do not modify! */
3394 #ifndef FFMPEG_CONFIG_H
3395 #define FFMPEG_CONFIG_H
3396 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3397 #define FFMPEG_LICENSE "$(c_escape $license)"
3398 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3399 #define CC_TYPE "$cc_type"
3400 #define CC_VERSION $cc_version
3401 #define restrict $_restrict
3402 #define EXTERN_PREFIX "${extern_prefix}"
3403 #define EXTERN_ASM ${extern_prefix}
3404 #define SLIBSUF "$SLIBSUF"
3405 EOF
3406
3407 test -n "$malloc_prefix" &&
3408     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3409
3410 if enabled small || disabled optimizations; then
3411     echo "#undef  av_always_inline"  >> $TMPH
3412     if enabled small; then
3413         echo "#define av_always_inline inline"  >> $TMPH
3414     else
3415         echo "#define av_always_inline av_unused"  >> $TMPH
3416     fi
3417 fi
3418
3419 if enabled yasm; then
3420     append config_files $TMPASM
3421     printf '' >$TMPASM
3422 fi
3423
3424 print_config ARCH_   "$config_files" $ARCH_LIST
3425 print_config HAVE_   "$config_files" $HAVE_LIST
3426 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3427                                      $CONFIG_EXTRA      \
3428                                      $DECODER_LIST      \
3429                                      $ENCODER_LIST      \
3430                                      $HWACCEL_LIST      \
3431                                      $PARSER_LIST       \
3432                                      $BSF_LIST          \
3433                                      $DEMUXER_LIST      \
3434                                      $MUXER_LIST        \
3435                                      $FILTER_LIST       \
3436                                      $PROTOCOL_LIST     \
3437                                      $INDEV_LIST        \
3438                                      $OUTDEV_LIST       \
3439
3440 cat >>config.mak <<EOF
3441 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3442 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3443 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3444 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3445 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3446 EOF
3447
3448 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3449 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3450
3451 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3452 cp_if_changed $TMPH config.h
3453 touch .config
3454
3455 enabled yasm && cp_if_changed $TMPASM config.asm
3456
3457 cat > $TMPH <<EOF
3458 /* Generated by ffconf */
3459 #ifndef AVUTIL_AVCONFIG_H
3460 #define AVUTIL_AVCONFIG_H
3461 EOF
3462
3463 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3464
3465 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3466
3467 cp_if_changed $TMPH libavutil/avconfig.h
3468
3469 test -n "$WARNINGS" && printf "\n$WARNINGS"
3470
3471 # build pkg-config files
3472
3473 pkgconfig_generate(){
3474 name=$1
3475 shortname=${name#lib}${build_suffix}
3476 comment=$2
3477 version=$3
3478 libs=$4
3479 requires=$5
3480 enabled ${name#lib} || return 0
3481 cat <<EOF > $name/$name.pc
3482 prefix=$prefix
3483 exec_prefix=\${prefix}
3484 libdir=$libdir
3485 includedir=$incdir
3486
3487 Name: $name
3488 Description: $comment
3489 Version: $version
3490 Requires: $(enabled shared || echo $requires)
3491 Requires.private: $(enabled shared && echo $requires)
3492 Conflicts:
3493 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3494 Libs.private: $(enabled shared && echo $libs)
3495 Cflags: -I\${includedir}
3496 EOF
3497 cat <<EOF > $name/$name-uninstalled.pc
3498 prefix=
3499 exec_prefix=
3500 libdir=\${pcfiledir}
3501 includedir=${source_path}
3502
3503 Name: $name
3504 Description: $comment
3505 Version: $version
3506 Requires: $requires
3507 Conflicts:
3508 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3509 Cflags: -I\${includedir}
3510 EOF
3511 }
3512
3513 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3514 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3515 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3516 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3517 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3518 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3519 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"