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 negate_filter_deps="lut_filter"
1504 ocv_filter_deps="libopencv"
1505 scale_filter_deps="swscale"
1506 yadif_filter_deps="gpl"
1507
1508 # libraries
1509 avdevice_deps="avcodec avformat"
1510 avformat_deps="avcodec"
1511 postproc_deps="gpl"
1512
1513 # programs
1514 ffmpeg_deps="avcodec avformat swscale"
1515 ffmpeg_select="buffer_filter"
1516 ffplay_deps="avcodec avformat swscale sdl"
1517 ffplay_select="rdft"
1518 ffprobe_deps="avcodec avformat"
1519 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1520 ffserver_extralibs='$ldl'
1521
1522 doc_deps="texi2html"
1523
1524 # tests
1525
1526 test_deps(){
1527     suf1=$1
1528     suf2=$2
1529     shift 2
1530     for v; do
1531         dep=${v%=*}
1532         tests=${v#*=}
1533         for name in ${tests}; do
1534             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1535         done
1536     done
1537 }
1538
1539 set_ne_test_deps(){
1540     eval ${1}_be_test_deps="bigendian"
1541     eval ${1}_le_test_deps="!bigendian"
1542 }
1543
1544 test_deps _encoder _decoder                                             \
1545     adpcm_g726=g726                                                     \
1546     adpcm_ima_qt                                                        \
1547     adpcm_ima_wav                                                       \
1548     adpcm_ms                                                            \
1549     adpcm_swf                                                           \
1550     adpcm_yamaha=adpcm_yam                                              \
1551     alac                                                                \
1552     asv1                                                                \
1553     asv2                                                                \
1554     bmp                                                                 \
1555     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1556     dvvideo="dv dv50"                                                   \
1557     ffv1                                                                \
1558     flac                                                                \
1559     flashsv                                                             \
1560     flv                                                                 \
1561     gif                                                                 \
1562     h261                                                                \
1563     h263="h263 h263p"                                                   \
1564     huffyuv                                                             \
1565     jpegls                                                              \
1566     mjpeg="jpg mjpeg ljpeg"                                             \
1567     mp2                                                                 \
1568     mpeg1video="mpeg mpeg1b"                                            \
1569     mpeg2video="mpeg2 mpeg2thread"                                      \
1570     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1571     msmpeg4v3=msmpeg4                                                   \
1572     msmpeg4v2                                                           \
1573     pbm=pbmpipe                                                         \
1574     pcx                                                                 \
1575     pgm="pgm pgmpipe"                                                   \
1576     png                                                                 \
1577     ppm="ppm ppmpipe"                                                   \
1578     rawvideo="rgb yuv"                                                  \
1579     roq                                                                 \
1580     rv10                                                                \
1581     rv20                                                                \
1582     sgi                                                                 \
1583     snow="snow snowll"                                                  \
1584     svq1                                                                \
1585     targa=tga                                                           \
1586     tiff                                                                \
1587     wmav1                                                               \
1588     wmav2                                                               \
1589     wmv1                                                                \
1590     wmv2                                                                \
1591
1592 test_deps _muxer _demuxer                                               \
1593     aiff                                                                \
1594     pcm_alaw=alaw                                                       \
1595     asf                                                                 \
1596     au                                                                  \
1597     avi                                                                 \
1598     dv=dv_fmt                                                           \
1599     ffm                                                                 \
1600     flv=flv_fmt                                                         \
1601     gxf                                                                 \
1602     matroska=mkv                                                        \
1603     mmf                                                                 \
1604     mov                                                                 \
1605     pcm_mulaw=mulaw                                                     \
1606     mxf                                                                 \
1607     nut                                                                 \
1608     ogg                                                                 \
1609     rawvideo=pixfmt                                                     \
1610     rm                                                                  \
1611     swf                                                                 \
1612     mpegts=ts                                                           \
1613     voc                                                                 \
1614     wav                                                                 \
1615     yuv4mpegpipe=yuv4mpeg                                               \
1616
1617 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1618 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1619
1620 set_ne_test_deps pixdesc
1621 set_ne_test_deps pixfmts_copy
1622 set_ne_test_deps pixfmts_crop
1623 set_ne_test_deps pixfmts_hflip
1624 set_ne_test_deps pixfmts_null
1625 set_ne_test_deps pixfmts_pad
1626 set_ne_test_deps pixfmts_scale
1627 set_ne_test_deps pixfmts_vflip
1628
1629 # default parameters
1630
1631 logfile="config.log"
1632
1633 # installation paths
1634 prefix_default="/usr/local"
1635 bindir_default='${prefix}/bin'
1636 datadir_default='${prefix}/share/ffmpeg'
1637 incdir_default='${prefix}/include'
1638 libdir_default='${prefix}/lib'
1639 mandir_default='${prefix}/share/man'
1640 shlibdir_default="$libdir_default"
1641
1642 # toolchain
1643 ar_default="ar"
1644 cc_default="gcc"
1645 cc_version=\"unknown\"
1646 host_cc_default="gcc"
1647 install="install"
1648 ln_s="ln -sf"
1649 nm_default="nm"
1650 objformat="elf"
1651 pkg_config_default=pkg-config
1652 ranlib="ranlib"
1653 strip_default="strip"
1654 yasmexe="yasm"
1655 nogas=":"
1656
1657 nm_opts='-g'
1658
1659 # machine
1660 arch_default=$(uname -m)
1661 cpu="generic"
1662
1663 # OS
1664 target_os_default=$(tolower $(uname -s))
1665 host_os=$target_os_default
1666
1667 # configurable options
1668 enable avcodec
1669 enable avdevice
1670 enable avfilter
1671 enable avformat
1672 enable avutil
1673 enable asm
1674 enable debug
1675 enable doc
1676 enable fastdiv
1677 enable ffmpeg
1678 enable ffplay
1679 enable ffprobe
1680 enable ffserver
1681 enable network
1682 enable optimizations
1683 enable postproc
1684 enable protocols
1685 enable static
1686 enable stripping
1687 enable swscale
1688 enable swscale_alpha
1689
1690 # build settings
1691 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1692 FFSERVERLDFLAGS=-Wl,-E
1693 LIBPREF="lib"
1694 LIBSUF=".a"
1695 FULLNAME='$(NAME)$(BUILDSUF)'
1696 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1697 SLIBPREF="lib"
1698 SLIBSUF=".so"
1699 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1700 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1701 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1702 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1703
1704 CC_O='-o $@'
1705
1706 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1707 host_libs='-lm'
1708
1709 target_path='$(CURDIR)'
1710
1711 # since the object filename is not given with the -MM flag, the compiler
1712 # is only able to print the basename, and we must add the path ourselves
1713 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1714 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1715
1716 # find source path
1717 if test -f configure; then
1718     source_path="$(pwd)"
1719     disable source_path_used
1720 else
1721     source_path=$(cd $(dirname "$0"); pwd)
1722     enable source_path_used
1723     echo "$source_path" | grep -q '[[:blank:]]' &&
1724         die "Out of tree builds are impossible with whitespace in source path."
1725     test -e "$source_path/config.h" &&
1726         die "Out of tree builds are impossible with config.h in source dir."
1727 fi
1728
1729 for v in "$@"; do
1730     r=${v#*=}
1731     l=${v%"$r"}
1732     r=$(sh_quote "$r")
1733     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1734 done
1735
1736 find_things(){
1737     thing=$1
1738     pattern=$2
1739     file=$source_path/$3
1740     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1741 }
1742
1743 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1744 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1745 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1746 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1747 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1748 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1749 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1750 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1751 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1752 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1753 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1754
1755 find_tests(){
1756     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1757 }
1758
1759 ACODEC_TESTS=$(find_tests acodec)
1760 VCODEC_TESTS=$(find_tests vsynth1)
1761 LAVF_TESTS=$(find_tests lavf)
1762 LAVFI_TESTS=$(find_tests lavfi)
1763 SEEK_TESTS=$(find_tests seek seek_)
1764
1765 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1766
1767 for n in $COMPONENT_LIST; do
1768     v=$(toupper ${n%s})_LIST
1769     eval enable \$$v
1770     eval ${n}_if_any="\$$v"
1771 done
1772
1773 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1774
1775 die_unknown(){
1776     echo "Unknown option \"$1\"."
1777     echo "See $0 --help for available options."
1778     exit 1
1779 }
1780
1781 show_list() {
1782     suffix=_$1
1783     shift
1784     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1785     exit 0
1786 }
1787
1788 for opt do
1789     optval="${opt#*=}"
1790     case "$opt" in
1791     --extra-ldflags=*) add_ldflags $optval
1792     ;;
1793     --extra-libs=*) add_extralibs $optval
1794     ;;
1795     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1796     ;;
1797     --enable-debug=*) debuglevel="$optval"
1798     ;;
1799     --disable-everything)
1800     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1801     ;;
1802     --enable-*=*|--disable-*=*)
1803     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1804     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1805     eval list=\$$(toupper $thing)_LIST
1806     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1807     $action $(filter "$name" $list)
1808     ;;
1809     --enable-?*|--disable-?*)
1810     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1811     if is_in $option $COMPONENT_LIST; then
1812         test $action = disable && action=unset
1813         eval $action \$$(toupper ${option%s})_LIST
1814     elif is_in $option $CMDLINE_SELECT; then
1815         $action $option
1816     else
1817         die_unknown $opt
1818     fi
1819     ;;
1820     --list-*)
1821         NAME="${opt#--list-}"
1822         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1823         NAME=${NAME%s}
1824         eval show_list $NAME \$$(toupper $NAME)_LIST
1825     ;;
1826     --help|-h) show_help
1827     ;;
1828     *)
1829     optname="${opt%%=*}"
1830     optname="${optname#--}"
1831     optname=$(echo "$optname" | sed 's/-/_/g')
1832     if is_in $optname $CMDLINE_SET; then
1833         eval $optname='$optval'
1834     elif is_in $optname $CMDLINE_APPEND; then
1835         append $optname "$optval"
1836     else
1837          die_unknown $opt
1838     fi
1839     ;;
1840     esac
1841 done
1842
1843 disabled logging && logfile=/dev/null
1844
1845 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1846 set >> $logfile
1847
1848 test -n "$cross_prefix" && enable cross_compile
1849
1850 if enabled cross_compile; then
1851     test -n "$arch" && test -n "$target_os" ||
1852         die "Must specify target arch and OS when cross-compiling"
1853 fi
1854
1855 set_default arch target_os
1856
1857 ar_default="${cross_prefix}${ar_default}"
1858 cc_default="${cross_prefix}${cc_default}"
1859 nm_default="${cross_prefix}${nm_default}"
1860 pkg_config_default="${cross_prefix}${pkg_config_default}"
1861 ranlib="${cross_prefix}${ranlib}"
1862 strip_default="${cross_prefix}${strip_default}"
1863
1864 sysinclude_default="${sysroot}/usr/include"
1865
1866 set_default cc nm pkg_config strip sysinclude
1867 enabled cross_compile || host_cc_default=$cc
1868 set_default host_cc
1869
1870 if ! $pkg_config --version >/dev/null 2>&1; then
1871     warn "$pkg_config not found, library detection may fail."
1872     pkg_config=false
1873 fi
1874
1875 exesuf() {
1876     case $1 in
1877         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1878     esac
1879 }
1880
1881 EXESUF=$(exesuf $target_os)
1882 HOSTEXESUF=$(exesuf $host_os)
1883
1884 # set temporary file name
1885 : ${TMPDIR:=$TEMPDIR}
1886 : ${TMPDIR:=$TMP}
1887 : ${TMPDIR:=/tmp}
1888
1889 if ! check_cmd mktemp -u XXXXXX; then
1890     # simple replacement for missing mktemp
1891     # NOT SAFE FOR GENERAL USE
1892     mktemp(){
1893         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1894     }
1895 fi
1896
1897 tmpfile(){
1898     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1899         (set -C; exec > $tmp) 2>/dev/null ||
1900         die "Unable to create temporary file in $TMPDIR."
1901     append TMPFILES $tmp
1902     eval $1=$tmp
1903 }
1904
1905 trap 'rm -f -- $TMPFILES' EXIT
1906
1907 tmpfile TMPC  .c
1908 tmpfile TMPE  $EXESUF
1909 tmpfile TMPH  .h
1910 tmpfile TMPO  .o
1911 tmpfile TMPS  .S
1912 tmpfile TMPV  .ver
1913 tmpfile TMPSH .sh
1914 tmpfile TMPASM .asm
1915
1916 unset -f mktemp
1917
1918 chmod +x $TMPE
1919
1920 # make sure we can execute files in $TMPDIR
1921 cat > $TMPSH 2>> $logfile <<EOF
1922 #! /bin/sh
1923 EOF
1924 chmod +x $TMPSH >> $logfile 2>&1
1925 if ! $TMPSH >> $logfile 2>&1; then
1926     cat <<EOF
1927 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1928 variable to another directory and make sure that it is not mounted noexec.
1929 EOF
1930     die "Sanity test failed."
1931 fi
1932
1933 filter_cflags=echo
1934 filter_cppflags=echo
1935 filter_asflags=echo
1936
1937 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1938     cc_type=llvm_gcc
1939     cc_version=__VERSION__
1940     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1941     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1942     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1943     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1944     speed_cflags='-O3'
1945     size_cflags='-Os'
1946 elif $cc -v 2>&1 | grep -qi ^gcc; then
1947     cc_type=gcc
1948     cc_version=__VERSION__
1949     gcc_version=$($cc --version | head -n1)
1950     gcc_basever=$($cc -dumpversion)
1951     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1952     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1953     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1954     if ! $cc -dumpversion | grep -q '^2\.'; then
1955         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1956         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1957     fi
1958     speed_cflags='-O3'
1959     size_cflags='-Os'
1960 elif $cc --version 2>/dev/null | grep -q Intel; then
1961     cc_type=icc
1962     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1963     cc_ident=$($cc --version | head -n1)
1964     icc_version=$($cc -dumpversion)
1965     CC_DEPFLAGS='-MMD'
1966     AS_DEPFLAGS='-MMD'
1967     speed_cflags='-O3'
1968     size_cflags='-Os'
1969     noopt_cflags='-O1'
1970 elif $cc -v 2>&1 | grep -q xlc; then
1971     cc_type=xlc
1972     cc_version="AV_STRINGIFY(__IBMC__)"
1973     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1974     speed_cflags='-O5'
1975     size_cflags='-O5 -qcompact'
1976 elif $cc -V 2>/dev/null | grep -q Compaq; then
1977     cc_type=ccc
1978     cc_version="AV_STRINGIFY(__DECC_VER)"
1979     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1980     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1981     debuglevel=3
1982     add_ldflags -Wl,-z,now # calls to libots crash without this
1983     speed_cflags='-fast'
1984     size_cflags='-O1'
1985 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1986     test -d "$sysroot" || die "No valid sysroot specified."
1987     cc_type=armcc
1988     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1989     cc_ident=$($cc --vsn | head -n1)
1990     armcc_conf="$PWD/armcc.conf"
1991     $cc --arm_linux_configure                 \
1992         --arm_linux_config_file="$armcc_conf" \
1993         --configure_sysroot="$sysroot"        \
1994         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1995         die "Error creating armcc configuration file."
1996     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1997     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1998     as_default="${cross_prefix}gcc"
1999     CC_DEPFLAGS='-MMD'
2000     AS_DEPFLAGS='-MMD'
2001     speed_cflags='-O3'
2002     size_cflags='-Os'
2003     filter_asflags="filter_out -W${armcc_opt}*"
2004 elif $cc -version 2>/dev/null | grep -q TMS470; then
2005     cc_type=tms470
2006     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2007     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2008     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2009     CC_O='-fr=$(@D)'
2010     as_default="${cross_prefix}gcc"
2011     ld_default="${cross_prefix}gcc"
2012     TMPO=$(basename $TMPC .c).o
2013     append TMPFILES $TMPO
2014     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2015     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2016     AS_DEPFLAGS='-MMD'
2017     speed_cflags='-O3 -mf=5'
2018     size_cflags='-O3 -mf=2'
2019     filter_cflags=tms470_flags
2020     tms470_flags(){
2021         for flag; do
2022             case $flag in
2023                 -march=*|-mcpu=*)
2024                     case "${flag#*=}" in
2025                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2026                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2027                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2028                         armv6*|arm11*)          echo -mv=6   ;;
2029                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2030                                                 echo -mv=5e  ;;
2031                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2032                     esac
2033                     ;;
2034                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2035                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2036                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2037                 -msoft-float)   echo --float_support=vfplib       ;;
2038                 -O[0-3]|-mf=*)  echo $flag                        ;;
2039                 -g)             echo -g -mn                       ;;
2040                 -pds=*)         echo $flag                        ;;
2041             esac
2042         done
2043     }
2044 elif $cc -v 2>&1 | grep -q clang; then
2045     cc_type=clang
2046     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2047         cc_version=__clang_version__ || cc_version=__VERSION__
2048     cc_ident=$($cc --version | head -n1)
2049     CC_DEPFLAGS='-MMD'
2050     AS_DEPFLAGS='-MMD'
2051     speed_cflags='-O3'
2052     size_cflags='-Os'
2053 elif $cc -V 2>&1 | grep -q Sun; then
2054     cc_type=suncc
2055     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2056     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2057     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2058     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2059     speed_cflags='-O5'
2060     size_cflags='-O5 -xspace'
2061     filter_cflags=suncc_flags
2062     suncc_flags(){
2063         for flag; do
2064             case $flag in
2065                 -march=*|-mcpu=*)
2066                     case "${flag#*=}" in
2067                         native)                   echo -xtarget=native       ;;
2068                         v9|niagara)               echo -xarch=sparc          ;;
2069                         ultrasparc)               echo -xarch=sparcvis       ;;
2070                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2071                         i586|pentium)             echo -xchip=pentium        ;;
2072                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2073                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2074                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2075                         pentium4*)          echo -xtarget=pentium4           ;;
2076                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2077                         *-sse3)             echo -xarch=sse3                 ;;
2078                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2079                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2080                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2081                         k8|opteron|athlon64|athlon-fx)
2082                                                   echo -xarch=sse2a          ;;
2083                         athlon*)                  echo -xarch=pentium_proa   ;;
2084                     esac
2085                     ;;
2086                 -std=c99)             echo -xc99              ;;
2087                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2088                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2089                 -W*,*)                echo $flag              ;;
2090                 -f*-*|-W*)                                    ;;
2091                 *)                    echo $flag              ;;
2092             esac
2093         done
2094     }
2095 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2096     cc_type=pathscale
2097     cc_version=__PATHSCALE__
2098     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2099     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2100     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2101     speed_cflags='-O2'
2102     size_cflags='-Os'
2103     filter_cflags='filter_out -Wdisabled-optimization'
2104 elif $cc -v 2>&1 | grep -q Open64; then
2105     cc_type=open64
2106     cc_version=__OPEN64__
2107     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2108     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2109     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2110     speed_cflags='-O2'
2111     size_cflags='-Os'
2112     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2113 fi
2114
2115 test -n "$cc_type" && enable $cc_type ||
2116     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2117
2118 : ${as_default:=$cc}
2119 : ${dep_cc_default:=$cc}
2120 : ${ld_default:=$cc}
2121 set_default ar as dep_cc ld
2122
2123 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2124 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2125
2126 add_cflags $extra_cflags
2127 add_asflags $extra_cflags
2128
2129 if test -n "$sysroot"; then
2130     case "$cc_type" in
2131         gcc|llvm_gcc|clang)
2132             add_cppflags --sysroot="$sysroot"
2133             add_ldflags --sysroot="$sysroot"
2134         ;;
2135         tms470)
2136             add_cppflags -I"$sysinclude"
2137             add_ldflags  --sysroot="$sysroot"
2138         ;;
2139     esac
2140 fi
2141
2142 if test "$cpu" = host; then
2143     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2144
2145     case "$cc_type" in
2146         gcc|llvm_gcc)
2147             check_native(){
2148                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2149                 sed -n "/$1=/{
2150                             s/.*$1=\\([^ ]*\\).*/\\1/
2151                             p
2152                             q
2153                         }" $TMPE
2154             }
2155             cpu=$(check_native -march || check_native -mcpu)
2156         ;;
2157     esac
2158
2159     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2160 fi
2161
2162 # Deal with common $arch aliases
2163 case "$arch" in
2164     arm*)
2165         arch="arm"
2166     ;;
2167     mips|mipsel|IP*)
2168         arch="mips"
2169     ;;
2170     mips64*)
2171         arch="mips"
2172         subarch="mips64"
2173     ;;
2174     parisc|hppa)
2175         arch="parisc"
2176     ;;
2177     parisc64|hppa64)
2178         arch="parisc"
2179         subarch="parisc64"
2180     ;;
2181     "Power Macintosh"|ppc|powerpc)
2182         arch="ppc"
2183     ;;
2184     ppc64|powerpc64)
2185         arch="ppc"
2186         subarch="ppc64"
2187     ;;
2188     s390|s390x)
2189         arch="s390"
2190     ;;
2191     sh4|sh)
2192         arch="sh4"
2193     ;;
2194     sun4u|sparc64)
2195         arch="sparc"
2196         subarch="sparc64"
2197     ;;
2198     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2199         arch="x86"
2200     ;;
2201 esac
2202
2203 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2204 enable $arch
2205
2206 # Add processor-specific flags
2207 if test "$cpu" = generic; then
2208     : do nothing
2209 elif enabled ppc; then
2210
2211     case $(tolower $cpu) in
2212         601|ppc601|powerpc601)
2213             cpuflags="-mcpu=601"
2214             disable altivec
2215         ;;
2216         603*|ppc603*|powerpc603*)
2217             cpuflags="-mcpu=603"
2218             disable altivec
2219         ;;
2220         604*|ppc604*|powerpc604*)
2221             cpuflags="-mcpu=604"
2222             disable altivec
2223         ;;
2224         g3|75*|ppc75*|powerpc75*)
2225             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2226             disable altivec
2227         ;;
2228         g4|745*|ppc745*|powerpc745*)
2229             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2230         ;;
2231         74*|ppc74*|powerpc74*)
2232             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2233         ;;
2234         g5|970|ppc970|powerpc970|power4*)
2235             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2236         ;;
2237         cell)
2238             cpuflags="-mcpu=cell"
2239             enable ldbrx
2240         ;;
2241         e500v2)
2242             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2243             disable altivec
2244         ;;
2245         e500)
2246             cpuflags="-mcpu=8540 -mhard-float"
2247             disable altivec
2248         ;;
2249     esac
2250
2251 elif enabled x86; then
2252
2253     case $cpu in
2254         i[345]86|pentium)
2255             cpuflags="-march=$cpu"
2256             disable mmx
2257         ;;
2258         # targets that do NOT support conditional mov (cmov)
2259         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2260             cpuflags="-march=$cpu"
2261             disable cmov
2262         ;;
2263         # targets that do support conditional mov (cmov)
2264         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2265             cpuflags="-march=$cpu"
2266             enable cmov
2267             enable fast_cmov
2268         ;;
2269         # targets that do support conditional mov but on which it's slow
2270         pentium4|pentium4m|prescott|nocona)
2271             cpuflags="-march=$cpu"
2272             enable cmov
2273             disable fast_cmov
2274         ;;
2275     esac
2276
2277 elif enabled sparc; then
2278
2279     case $cpu in
2280         niagara)
2281             cpuflags="-mcpu=$cpu"
2282             disable vis
2283         ;;
2284         sparc64)
2285             cpuflags="-mcpu=v9"
2286         ;;
2287     esac
2288
2289 elif enabled arm; then
2290
2291     case $cpu in
2292         armv*)
2293             cpuflags="-march=$cpu"
2294             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2295         ;;
2296         *)
2297             cpuflags="-mcpu=$cpu"
2298             case $cpu in
2299                 cortex-a*)                               subarch=armv7a  ;;
2300                 cortex-r*)                               subarch=armv7r  ;;
2301                 cortex-m*)                               subarch=armv7m  ;;
2302                 arm11*)                                  subarch=armv6   ;;
2303                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2304                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2305             esac
2306         ;;
2307     esac
2308
2309 elif enabled alpha; then
2310
2311     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2312
2313 elif enabled bfin; then
2314
2315     cpuflags="-mcpu=$cpu"
2316
2317 elif enabled mips; then
2318
2319     cpuflags="-march=$cpu"
2320
2321 elif enabled avr32; then
2322
2323     case $cpu in
2324         ap7[02]0[0-2])
2325             subarch="avr32_ap"
2326             cpuflags="-mpart=$cpu"
2327         ;;
2328         ap)
2329             subarch="avr32_ap"
2330             cpuflags="-march=$cpu"
2331         ;;
2332         uc3[ab]*)
2333             subarch="avr32_uc"
2334             cpuflags="-mcpu=$cpu"
2335         ;;
2336         uc)
2337             subarch="avr32_uc"
2338             cpuflags="-march=$cpu"
2339         ;;
2340     esac
2341
2342 fi
2343
2344 add_cflags $cpuflags
2345 add_asflags $cpuflags
2346
2347 # compiler sanity check
2348 check_exec <<EOF
2349 int main(void){ return 0; }
2350 EOF
2351 if test "$?" != 0; then
2352     echo "$cc is unable to create an executable file."
2353     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2354         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2355         echo "Only do this if you know what cross compiling means."
2356     fi
2357     die "C compiler test failed."
2358 fi
2359
2360 add_cppflags -D_ISOC99_SOURCE
2361 check_cflags -std=c99
2362 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2363 #include <stdlib.h>
2364 EOF
2365 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2366 #include <stdlib.h>
2367 EOF
2368
2369 check_host_cflags -std=c99
2370 check_host_cflags -Wall
2371
2372 case "$arch" in
2373     alpha|ia64|mips|parisc|sparc)
2374         spic=$shared
2375     ;;
2376     x86)
2377         subarch="x86_32"
2378         check_cc <<EOF && subarch="x86_64"
2379         int test[(int)sizeof(char*) - 7];
2380 EOF
2381         if test "$subarch" = "x86_64"; then
2382             spic=$shared
2383         fi
2384     ;;
2385 esac
2386
2387 enable $subarch
2388 enabled spic && enable pic
2389
2390 # OS specific
2391 case $target_os in
2392     haiku)
2393         prefix_default="/boot/common"
2394         network_extralibs="-lnetwork"
2395         host_libs=
2396         ;;
2397     sunos)
2398         FFSERVERLDFLAGS=""
2399         SHFLAGS='-shared -Wl,-h,$$(@F)'
2400         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2401         network_extralibs="-lsocket -lnsl"
2402         add_cppflags -D__EXTENSIONS__
2403         nm_opts='-P -g'
2404         ;;
2405     netbsd)
2406         disable symver
2407         oss_indev_extralibs="-lossaudio"
2408         oss_outdev_extralibs="-lossaudio"
2409         ;;
2410     openbsd)
2411         enable malloc_aligned
2412         # On OpenBSD 4.5. the compiler does not use PIC unless
2413         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2414         # however the generated executable will not do anything
2415         # (simply quits with exit-code 1, no crash, no output).
2416         # Thus explicitly enable PIC here.
2417         enable pic
2418         disable symver
2419         SHFLAGS='-shared'
2420         oss_indev_extralibs="-lossaudio"
2421         oss_outdev_extralibs="-lossaudio"
2422         ;;
2423     dragonfly)
2424         enable malloc_aligned
2425         disable symver
2426         ;;
2427     freebsd)
2428         enable malloc_aligned
2429         ;;
2430     bsd/os)
2431         add_extralibs -lpoll -lgnugetopt
2432         strip="strip -d"
2433         ;;
2434     darwin)
2435         enable malloc_aligned
2436         gas="gas-preprocessor.pl $cc"
2437         enabled ppc && add_asflags -force_cpusubtype_ALL
2438         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2439         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2440         strip="${strip} -x"
2441         add_ldflags -Wl,-dynamic,-search_paths_first
2442         SLIBSUF=".dylib"
2443         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2444         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2445         FFSERVERLDFLAGS=-Wl,-bind_at_load
2446         objformat="macho"
2447         enabled x86_64 && objformat="macho64"
2448         enabled_any pic shared ||
2449             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2450         ;;
2451     mingw32*)
2452         if test $target_os = "mingw32ce"; then
2453             disable network
2454         else
2455             target_os=mingw32
2456         fi
2457         LIBTARGET=i386
2458         if enabled x86_64; then
2459             enable malloc_aligned
2460             LIBTARGET=x64
2461         elif enabled arm; then
2462             LIBTARGET=arm-wince
2463         fi
2464         shlibdir_default="$bindir_default"
2465         SLIBPREF=""
2466         SLIBSUF=".dll"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2469         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2470         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2471             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2472             install -d "$(LIBDIR)"; \
2473             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2474         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2475         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'
2476         objformat="win32"
2477         enable dos_paths
2478         check_cflags -fno-common
2479         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2480                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2481                 die "ERROR: MinGW runtime version must be >= 3.15."
2482         add_cppflags -U__STRICT_ANSI__
2483         ;;
2484     cygwin*)
2485         target_os=cygwin
2486         shlibdir_default="$bindir_default"
2487         SLIBPREF="cyg"
2488         SLIBSUF=".dll"
2489         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2490         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2491         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2492         objformat="win32"
2493         enable dos_paths
2494         check_cflags -fno-common
2495         add_cppflags -U__STRICT_ANSI__
2496         ;;
2497     *-dos|freedos|opendos)
2498         network_extralibs="-lsocket"
2499         objformat="coff"
2500         enable dos_paths
2501         add_cppflags -U__STRICT_ANSI__
2502         ;;
2503     linux)
2504         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2505         enable dv1394
2506         ;;
2507     irix*)
2508         target_os=irix
2509         ranlib="echo ignoring ranlib"
2510         ;;
2511     os/2*)
2512         strip="lxlite -CS"
2513         ln_s="cp -f"
2514         objformat="aout"
2515         add_cppflags -D_GNU_SOURCE
2516         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2517         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2518         FFSERVERLDFLAGS=""
2519         LIBSUF="_s.a"
2520         SLIBPREF=""
2521         SLIBSUF=".dll"
2522         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2523         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2524         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2525           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2526           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2527           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2528           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2529           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2530         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2531           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2532         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2533         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2534         enable dos_paths
2535         ;;
2536     gnu/kfreebsd)
2537         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2538         ;;
2539     gnu)
2540         ;;
2541     qnx)
2542         add_cppflags -D_QNX_SOURCE
2543         network_extralibs="-lsocket"
2544         ;;
2545     symbian)
2546         SLIBSUF=".dll"
2547         enable dos_paths
2548         add_cflags --include=$sysinclude/gcce/gcce.h
2549         ;;
2550     none)
2551         ;;
2552     *)
2553         die "Unknown OS '$target_os'."
2554         ;;
2555 esac
2556
2557 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2558
2559 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2560
2561 set_default $PATHS_LIST
2562
2563 # we need to build at least one lib type
2564 if ! enabled_any static shared; then
2565     cat <<EOF
2566 At least one library type must be built.
2567 Specify --enable-static to build the static libraries or --enable-shared to
2568 build the shared libraries as well. To only build the shared libraries specify
2569 --disable-static in addition to --enable-shared.
2570 EOF
2571     exit 1;
2572 fi
2573
2574 disabled static && LIBNAME=""
2575
2576 die_license_disabled() {
2577     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2578 }
2579
2580 die_license_disabled gpl libx264
2581 die_license_disabled gpl libxavs
2582 die_license_disabled gpl libxvid
2583 die_license_disabled gpl x11grab
2584
2585 die_license_disabled nonfree libfaac
2586
2587 die_license_disabled version3 libopencore_amrnb
2588 die_license_disabled version3 libopencore_amrwb
2589 die_license_disabled version3 libvo_aacenc
2590 die_license_disabled version3 libvo_amrwbenc
2591
2592 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2593
2594 disabled optimizations || check_cflags -fomit-frame-pointer
2595
2596 enable_pic() {
2597     enable pic
2598     add_cppflags -DPIC
2599     add_cflags   -fPIC
2600     add_asflags  -fPIC
2601 }
2602
2603 enabled pic && enable_pic
2604
2605 check_cc <<EOF || die "Symbol mangling check failed."
2606 int ff_extern;
2607 EOF
2608 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2609 extern_prefix=${sym%%ff_extern*}
2610
2611 check_cc <<EOF && enable inline_asm
2612 void foo(void) { __asm__ volatile ("" ::); }
2613 EOF
2614
2615 _restrict=
2616 for restrict_keyword in restrict __restrict__ __restrict; do
2617     check_cc <<EOF && _restrict=$restrict_keyword && break
2618 void foo(char * $restrict_keyword p);
2619 EOF
2620 done
2621
2622 check_cc <<EOF && enable attribute_packed
2623 struct { int x; } __attribute__((packed)) x;
2624 EOF
2625
2626 check_cc <<EOF && enable attribute_may_alias
2627 union { int x; } __attribute__((may_alias)) x;
2628 EOF
2629
2630 check_cc <<EOF || die "endian test failed"
2631 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2632 EOF
2633 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2634
2635 if enabled alpha; then
2636
2637     check_cflags -mieee
2638
2639 elif enabled arm; then
2640
2641     check_cflags -marm
2642     nogas=die
2643
2644     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2645         enable vfp_args
2646     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2647         case "${cross_prefix:-$cc}" in
2648             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2649             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2650 __asm__ (".eabi_attribute 28, 1");
2651 int main(void) { return 0; }
2652 EOF
2653         esac
2654         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2655     fi
2656
2657     # We have to check if pld is a nop and disable it.
2658     check_asm pld '"pld [r0]"'
2659
2660     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2661     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2662     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2663     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2664     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2665     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2666     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2667
2668     enabled_all armv6t2 shared !pic && enable_pic
2669
2670 elif enabled mips; then
2671
2672     check_asm loongson '"dmult.g $1, $2, $3"'
2673     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2674
2675 elif enabled ppc; then
2676
2677     enable local_aligned_8 local_aligned_16
2678
2679     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2680     check_asm ibm_asm   '"add 0, 0, 0"'
2681     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2682     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2683
2684     # AltiVec flags: The FSF version of GCC differs from the Apple version
2685     if enabled altivec; then
2686         nogas=warn
2687         check_cflags -maltivec -mabi=altivec &&
2688         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2689         check_cflags -faltivec
2690
2691         # check if our compiler supports Motorola AltiVec C API
2692         check_cc <<EOF || disable altivec
2693 $inc_altivec_h
2694 int main(void) {
2695     vector signed int v1, v2, v3;
2696     v1 = vec_add(v2,v3);
2697     return 0;
2698 }
2699 EOF
2700
2701         # check if our compiler supports braces for vector declarations
2702         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2703 $inc_altivec_h
2704 int main (void) { (vector int) {1}; return 0; }
2705 EOF
2706     fi
2707
2708 elif enabled sparc; then
2709
2710     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2711         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2712
2713 elif enabled x86; then
2714
2715     enable local_aligned_8 local_aligned_16
2716
2717     # check whether EBP is available on x86
2718     # As 'i' is stored on the stack, this program will crash
2719     # if the base pointer is used to access it because the
2720     # base pointer is cleared in the inline assembly code.
2721     check_exec_crash <<EOF && enable ebp_available
2722     volatile int i=0;
2723     __asm__ volatile (
2724         "xorl %%ebp, %%ebp"
2725     ::: "%ebp");
2726     return i;
2727 EOF
2728
2729     # check whether EBX is available on x86
2730     check_asm ebx_available '""::"b"(0)' &&
2731         check_asm ebx_available '"":::"%ebx"'
2732
2733     # check whether xmm clobbers are supported
2734     check_asm xmm_clobbers '"":::"%xmm0"'
2735
2736     # check whether more than 10 operands are supported
2737     check_cc <<EOF && enable ten_operands
2738 int main(void) {
2739     int x=0;
2740     __asm__ volatile(
2741         ""
2742         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2743     );
2744     return 0;
2745 }
2746 EOF
2747
2748     # check whether binutils is new enough to compile SSSE3/MMX2
2749     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2750     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2751
2752     check_asm bswap '"bswap %%eax" ::: "%eax"'
2753
2754     if ! disabled_any asm mmx yasm; then
2755         if check_cmd $yasmexe --version; then
2756             enabled x86_64 && yasm_extra="-m amd64"
2757             yasm_debug="-g dwarf2"
2758         elif check_cmd nasm -v; then
2759             yasmexe=nasm
2760             yasm_debug="-g -F dwarf"
2761             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2762         fi
2763
2764         YASMFLAGS="-f $objformat $yasm_extra"
2765         enabled pic               && append YASMFLAGS "-DPIC"
2766         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2767         case "$objformat" in
2768             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2769         esac
2770
2771         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2772             die "yasm not found, use --disable-yasm for a crippled build"
2773         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2774     fi
2775
2776     case "$cpu" in
2777         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2778             disable fast_clz
2779         ;;
2780     esac
2781
2782 fi
2783
2784 if enabled asm; then
2785     as=${gas:=$as}
2786     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2787         $nogas "GNU assembler not found, install gas-preprocessor"
2788 fi
2789
2790 check_ldflags -Wl,--as-needed
2791
2792 if check_func dlopen; then
2793     ldl=
2794 elif check_func dlopen -ldl; then
2795     ldl=-ldl
2796 fi
2797
2798 if enabled network; then
2799     check_type "sys/types.h sys/socket.h" socklen_t
2800     check_type netdb.h "struct addrinfo"
2801     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2802     check_type netinet/in.h "struct sockaddr_in6"
2803     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2804     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2805     # Prefer arpa/inet.h over winsock2
2806     if check_header arpa/inet.h ; then
2807         check_func closesocket
2808     elif check_header winsock2.h ; then
2809         check_func_headers winsock2.h closesocket -lws2 && \
2810             network_extralibs="-lws2" || \
2811         { check_func_headers winsock2.h closesocket -lws2_32 && \
2812             network_extralibs="-lws2_32"; }
2813         check_type ws2tcpip.h socklen_t
2814         check_type ws2tcpip.h "struct addrinfo"
2815         check_type ws2tcpip.h "struct ipv6_mreq"
2816         check_type ws2tcpip.h "struct sockaddr_in6"
2817         check_type ws2tcpip.h "struct sockaddr_storage"
2818         check_struct winsock2.h "struct sockaddr" sa_len
2819     else
2820         disable network
2821     fi
2822 fi
2823
2824 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2825 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2826
2827 check_func  fcntl
2828 check_func  fork
2829 check_func  getaddrinfo $network_extralibs
2830 check_func  gethrtime
2831 check_func  getrusage
2832 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2833 check_func  inet_aton $network_extralibs
2834 check_func  isatty
2835 check_func  localtime_r
2836 check_func  ${malloc_prefix}memalign            && enable memalign
2837 check_func  mkstemp
2838 check_func  mmap
2839 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2840 check_func  setrlimit
2841 check_func  strerror_r
2842 check_func  strtok_r
2843 check_func_headers conio.h kbhit
2844 check_func_headers io.h setmode
2845 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2846 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2847 check_func_headers windows.h GetProcessTimes
2848 check_func_headers windows.h MapViewOfFile
2849 check_func_headers windows.h VirtualAlloc
2850
2851 check_header dlfcn.h
2852 check_header dxva2api.h
2853 check_header libcrystalhd/libcrystalhd_if.h
2854 check_header malloc.h
2855 check_header poll.h
2856 check_header sys/mman.h
2857 check_header sys/resource.h
2858 check_header sys/select.h
2859 check_header termios.h
2860 check_header vdpau/vdpau.h
2861 check_header vdpau/vdpau_x11.h
2862 check_header X11/extensions/XvMClib.h
2863
2864 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2865
2866 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2867 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2868
2869 # check for some common methods of building with pthread support
2870 # do this before the optional library checks as some of them require pthreads
2871 if ! disabled pthreads && ! enabled w32threads; then
2872     enable pthreads
2873     if check_func pthread_create; then
2874         :
2875     elif check_func pthread_create -pthread; then
2876         add_cflags -pthread
2877         add_extralibs -pthread
2878     elif check_func pthread_create -pthreads; then
2879         add_cflags -pthreads
2880         add_extralibs -pthreads
2881     elif check_func pthread_create -lpthreadGC2; then
2882         add_extralibs -lpthreadGC2
2883     elif ! check_lib pthread.h pthread_create -lpthread; then
2884         disable pthreads
2885     fi
2886 fi
2887
2888 for thread in $THREADS_LIST; do
2889     if enabled $thread; then
2890         test -n "$thread_type" &&
2891             die "ERROR: Only one thread type must be selected." ||
2892             thread_type="$thread"
2893     fi
2894 done
2895
2896 check_lib math.h sin -lm && LIBM="-lm"
2897 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2898 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2899
2900 check_mathfunc exp2
2901 check_mathfunc exp2f
2902 check_mathfunc llrint
2903 check_mathfunc llrintf
2904 check_mathfunc log2
2905 check_mathfunc log2f
2906 check_mathfunc lrint
2907 check_mathfunc lrintf
2908 check_mathfunc round
2909 check_mathfunc roundf
2910 check_mathfunc trunc
2911 check_mathfunc truncf
2912
2913 # these are off by default, so fail if requested and not available
2914 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2915 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2916 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2917 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2918 enabled libdirac   && require_pkg_config dirac                          \
2919     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2920     "dirac_decoder_init dirac_encoder_init"
2921 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2922 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2923 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2924 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2925 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2926 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2927 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2928 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2929 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2930 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2931 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2932 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2933 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2934 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2935 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2936 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2937 enabled libvpx     && {
2938     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2939                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2940     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2941                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2942 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2943                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2944                         die "ERROR: libx264 version must be >= 0.115."; }
2945 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2946 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2947 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2948
2949 SDL_CONFIG="${cross_prefix}sdl-config"
2950 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2951     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2952     enable sdl &&
2953     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2954 else
2955   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2956     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2957     sdl_libs=$("${SDL_CONFIG}" --libs)
2958     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2959     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2960     enable sdl &&
2961     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2962   fi
2963 fi
2964 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2965
2966 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2967
2968 check_header linux/fb.h
2969 check_header linux/videodev.h
2970 check_header linux/videodev2.h
2971 check_header sys/videoio.h
2972
2973 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2974 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2975 # w32api 3.12 had it defined wrong
2976 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2977
2978 check_type "dshow.h" IBaseFilter
2979
2980 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2981 { check_header dev/bktr/ioctl_meteor.h &&
2982   check_header dev/bktr/ioctl_bt848.h; } ||
2983 { check_header machine/ioctl_meteor.h &&
2984   check_header machine/ioctl_bt848.h; } ||
2985 { check_header dev/video/meteor/ioctl_meteor.h &&
2986   check_header dev/video/bktr/ioctl_bt848.h; } ||
2987 check_header dev/ic/bt8xx.h
2988
2989 check_header sndio.h
2990 if check_struct sys/soundcard.h audio_buf_info bytes; then
2991     enable_safe sys/soundcard.h
2992 else
2993     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2994     #include <sys/soundcard.h>
2995     audio_buf_info abc;
2996 EOF
2997 fi
2998 check_header soundcard.h
2999
3000 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3001
3002 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3003
3004 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3005
3006 enabled x11grab                         &&
3007 check_header X11/Xlib.h                 &&
3008 check_header X11/extensions/XShm.h      &&
3009 check_header X11/extensions/Xfixes.h    &&
3010 check_func XOpenDisplay -lX11           &&
3011 check_func XShmCreateImage -lX11 -lXext &&
3012 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3013
3014 if ! disabled vaapi; then
3015     check_lib va/va.h vaInitialize -lva && {
3016         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3017         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3018     } || disable vaapi
3019 fi
3020
3021 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3022 check_cpp_condition \
3023     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3024     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3025       disable vdpau; }
3026 fi
3027
3028 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3029
3030 # add some useful compiler flags if supported
3031 check_cflags -Wdeclaration-after-statement
3032 check_cflags -Wall
3033 check_cflags -Wno-parentheses
3034 check_cflags -Wno-switch
3035 check_cflags -Wdisabled-optimization
3036 check_cflags -Wpointer-arith
3037 check_cflags -Wredundant-decls
3038 check_cflags -Wno-pointer-sign
3039 check_cflags -Wcast-qual
3040 check_cflags -Wwrite-strings
3041 check_cflags -Wtype-limits
3042 check_cflags -Wundef
3043 check_cflags -Wmissing-prototypes
3044 check_cflags -Wno-pointer-to-int-cast
3045 enabled extra_warnings && check_cflags -Winline
3046
3047 # add some linker flags
3048 check_ldflags -Wl,--warn-common
3049 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
3050 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3051
3052 echo "X{};" > $TMPV
3053 if test_ldflags -Wl,--version-script,$TMPV; then
3054     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3055     check_cc <<EOF && enable symver_asm_label
3056 void ff_foo(void) __asm__ ("av_foo@VERSION");
3057 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3058 EOF
3059     check_cc <<EOF && enable symver_gnu_asm
3060 __asm__(".symver ff_foo,av_foo@VERSION");
3061 void ff_foo(void) {}
3062 EOF
3063 fi
3064
3065 if enabled small; then
3066     add_cflags $size_cflags
3067 elif enabled optimizations; then
3068     add_cflags $speed_cflags
3069 else
3070     add_cflags $noopt_cflags
3071 fi
3072 check_cflags -fno-math-errno
3073 check_cflags -fno-signed-zeros
3074
3075 if enabled icc; then
3076     # Just warnings, no remarks
3077     check_cflags -w1
3078     # -wd: Disable following warnings
3079     # 144, 167, 556: -Wno-pointer-sign
3080     # 1292: attribute "foo" ignored
3081     # 10006: ignoring unknown option -fno-signed-zeros
3082     # 10148: ignoring unknown option -Wno-parentheses
3083     # 10156: ignoring option '-W'; no argument required
3084     check_cflags -wd144,167,556,1292,10006,10148,10156
3085     # 11030: Warning unknown option --as-needed
3086     # 10156: ignoring option '-export'; no argument required
3087     check_ldflags -wd10156,11030
3088     # Allow to compile with optimizations
3089     check_ldflags -march=$cpu
3090     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3091     enable ebp_available
3092     if enabled x86_32; then
3093         test ${icc_version%%.*} -ge 11 && \
3094             check_cflags -falign-stack=maintain-16-byte || \
3095             disable aligned_stack
3096     fi
3097 elif enabled ccc; then
3098     # disable some annoying warnings
3099     add_cflags -msg_disable cvtu32to64
3100     add_cflags -msg_disable embedcomment
3101     add_cflags -msg_disable needconstext
3102     add_cflags -msg_disable nomainieee
3103     add_cflags -msg_disable ptrmismatch1
3104     add_cflags -msg_disable unreachcode
3105 elif enabled gcc; then
3106     check_cflags -fno-tree-vectorize
3107     check_cflags -Werror=implicit-function-declaration
3108     check_cflags -Werror=missing-prototypes
3109 elif enabled llvm_gcc; then
3110     check_cflags -mllvm -stack-alignment=16
3111 elif enabled clang; then
3112     check_cflags -mllvm -stack-alignment=16
3113     check_cflags -Qunused-arguments
3114 elif enabled armcc; then
3115     # 2523: use of inline assembler is deprecated
3116     add_cflags -W${armcc_opt},--diag_suppress=2523
3117     add_cflags -W${armcc_opt},--diag_suppress=1207
3118     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3119     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3120 elif enabled tms470; then
3121     add_cflags -pds=824 -pds=837
3122 elif enabled pathscale; then
3123     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3124 fi
3125
3126 enabled_any $THREADS_LIST      && enable threads
3127
3128 check_deps $CONFIG_LIST       \
3129            $CONFIG_EXTRA      \
3130            $HAVE_LIST         \
3131            $DECODER_LIST      \
3132            $ENCODER_LIST      \
3133            $HWACCEL_LIST      \
3134            $PARSER_LIST       \
3135            $BSF_LIST          \
3136            $DEMUXER_LIST      \
3137            $MUXER_LIST        \
3138            $FILTER_LIST       \
3139            $INDEV_LIST        \
3140            $OUTDEV_LIST       \
3141            $PROTOCOL_LIST     \
3142            $ACODEC_TESTS      \
3143            $VCODEC_TESTS      \
3144            $LAVF_TESTS        \
3145            $LAVFI_TESTS       \
3146            $SEEK_TESTS        \
3147
3148 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3149
3150 if test $target_os == "haiku"; then
3151     disable memalign
3152     disable posix_memalign
3153 fi
3154
3155 ! enabled_any memalign posix_memalign malloc_aligned &&
3156     enabled_any $need_memalign && enable memalign_hack
3157
3158 echo "install prefix            $prefix"
3159 echo "source path               $source_path"
3160 echo "C compiler                $cc"
3161 echo "ARCH                      $arch ($cpu)"
3162 if test "$build_suffix" != ""; then
3163     echo "build suffix              $build_suffix"
3164 fi
3165 if test "$extra_version" != ""; then
3166     echo "version string suffix     $extra_version"
3167 fi
3168 echo "big-endian                ${bigendian-no}"
3169 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3170 if enabled x86; then
3171     echo "${yasmexe}                      ${yasm-no}"
3172     echo "MMX enabled               ${mmx-no}"
3173     echo "MMX2 enabled              ${mmx2-no}"
3174     echo "3DNow! enabled            ${amd3dnow-no}"
3175     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3176     echo "SSE enabled               ${sse-no}"
3177     echo "SSSE3 enabled             ${ssse3-no}"
3178     echo "AVX enabled               ${avx-no}"
3179     echo "CMOV enabled              ${cmov-no}"
3180     echo "CMOV is fast              ${fast_cmov-no}"
3181     echo "EBX available             ${ebx_available-no}"
3182     echo "EBP available             ${ebp_available-no}"
3183     echo "10 operands supported     ${ten_operands-no}"
3184 fi
3185 if enabled arm; then
3186     echo "ARMv5TE enabled           ${armv5te-no}"
3187     echo "ARMv6 enabled             ${armv6-no}"
3188     echo "ARMv6T2 enabled           ${armv6t2-no}"
3189     echo "ARM VFP enabled           ${armvfp-no}"
3190     echo "IWMMXT enabled            ${iwmmxt-no}"
3191     echo "NEON enabled              ${neon-no}"
3192 fi
3193 if enabled mips; then
3194     echo "MMI enabled               ${mmi-no}"
3195 fi
3196 if enabled ppc; then
3197     echo "AltiVec enabled           ${altivec-no}"
3198     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3199     echo "dcbzl available           ${dcbzl-no}"
3200 fi
3201 if enabled sparc; then
3202     echo "VIS enabled               ${vis-no}"
3203 fi
3204 echo "debug symbols             ${debug-no}"
3205 echo "strip symbols             ${stripping-no}"
3206 echo "optimize for size         ${small-no}"
3207 echo "optimizations             ${optimizations-no}"
3208 echo "static                    ${static-no}"
3209 echo "shared                    ${shared-no}"
3210 echo "postprocessing support    ${postproc-no}"
3211 echo "new filter support        ${avfilter-no}"
3212 echo "network support           ${network-no}"
3213 echo "threading support         ${thread_type-no}"
3214 echo "SDL support               ${sdl-no}"
3215 echo "Sun medialib support      ${mlib-no}"
3216 echo "AVISynth enabled          ${avisynth-no}"
3217 echo "libcelt enabled           ${libcelt-no}"
3218 echo "frei0r enabled            ${frei0r-no}"
3219 echo "libdc1394 support         ${libdc1394-no}"
3220 echo "libdirac enabled          ${libdirac-no}"
3221 echo "libfaac enabled           ${libfaac-no}"
3222 echo "libgsm enabled            ${libgsm-no}"
3223 echo "libmp3lame enabled        ${libmp3lame-no}"
3224 echo "libnut enabled            ${libnut-no}"
3225 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3226 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3227 echo "libopencv support         ${libopencv-no}"
3228 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3229 echo "librtmp enabled           ${librtmp-no}"
3230 echo "libschroedinger enabled   ${libschroedinger-no}"
3231 echo "libspeex enabled          ${libspeex-no}"
3232 echo "libtheora enabled         ${libtheora-no}"
3233 echo "libva enabled             ${vaapi-no}"
3234 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3235 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3236 echo "libvorbis enabled         ${libvorbis-no}"
3237 echo "libvpx enabled            ${libvpx-no}"
3238 echo "libx264 enabled           ${libx264-no}"
3239 echo "libxavs enabled           ${libxavs-no}"
3240 echo "libxvid enabled           ${libxvid-no}"
3241 echo "zlib enabled              ${zlib-no}"
3242 echo "bzlib enabled             ${bzlib-no}"
3243 echo
3244
3245 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3246     echo "Enabled ${type}s:"
3247     eval list=\$$(toupper $type)_LIST
3248     print_enabled '_*' $list | sort | pr -r -3 -t
3249     echo
3250 done
3251
3252 license="LGPL version 2.1 or later"
3253 if enabled nonfree; then
3254     license="nonfree and unredistributable"
3255 elif enabled gplv3; then
3256     license="GPL version 3 or later"
3257 elif enabled lgplv3; then
3258     license="LGPL version 3 or later"
3259 elif enabled gpl; then
3260     license="GPL version 2 or later"
3261 fi
3262
3263 echo "License: $license"
3264
3265 echo "Creating config.mak and config.h..."
3266
3267 # build tree in object directory if source path is different from current one
3268 if enabled source_path_used; then
3269     DIRS="
3270         doc
3271         libavcodec
3272         libavcodec/$arch
3273         libavdevice
3274         libavfilter
3275         libavfilter/$arch
3276         libavfilter/libmpcodecs
3277         libavfilter/libmpcodecs/libvo
3278         libavformat
3279         libavutil
3280         libavutil/$arch
3281         libpostproc
3282         libswscale
3283         libswscale/$arch
3284         tests
3285         tools
3286     "
3287     FILES="
3288         Makefile
3289         common.mak
3290         subdir.mak
3291         doc/texi2pod.pl
3292         libavcodec/Makefile
3293         libavcodec/${arch}/Makefile
3294         libavdevice/Makefile
3295         libavfilter/Makefile
3296         libavfilter/${arch}/Makefile
3297         libavformat/Makefile
3298         libavutil/Makefile
3299         libpostproc/Makefile
3300         libswscale/Makefile
3301     "
3302     map 'mkdir -p $v' $DIRS;
3303     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3304 fi
3305
3306 enabled stripping || strip="echo skipping strip"
3307
3308 config_files="$TMPH config.mak"
3309
3310 cat > config.mak <<EOF
3311 # Automatically generated by configure - do not modify!
3312 ifndef FFMPEG_CONFIG_MAK
3313 FFMPEG_CONFIG_MAK=1
3314 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3315 prefix=$prefix
3316 LIBDIR=\$(DESTDIR)$libdir
3317 SHLIBDIR=\$(DESTDIR)$shlibdir
3318 INCDIR=\$(DESTDIR)$incdir
3319 BINDIR=\$(DESTDIR)$bindir
3320 DATADIR=\$(DESTDIR)$datadir
3321 MANDIR=\$(DESTDIR)$mandir
3322 SRC_PATH="$source_path"
3323 SRC_PATH_BARE=$source_path
3324 CC_IDENT=$cc_ident
3325 ARCH=$arch
3326 CC=$cc
3327 AS=$as
3328 LD=$ld
3329 DEPCC=$dep_cc
3330 YASM=$yasmexe
3331 YASMDEP=$yasmexe
3332 AR=$ar
3333 RANLIB=$ranlib
3334 CP=cp -p
3335 LN_S=$ln_s
3336 STRIP=$strip
3337 CPPFLAGS=$CPPFLAGS
3338 CFLAGS=$CFLAGS
3339 ASFLAGS=$ASFLAGS
3340 CC_O=$CC_O
3341 LDFLAGS=$LDFLAGS
3342 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3343 SHFLAGS=$SHFLAGS
3344 YASMFLAGS=$YASMFLAGS
3345 BUILDSUF=$build_suffix
3346 FULLNAME=$FULLNAME
3347 LIBPREF=$LIBPREF
3348 LIBSUF=$LIBSUF
3349 LIBNAME=$LIBNAME
3350 SLIBPREF=$SLIBPREF
3351 SLIBSUF=$SLIBSUF
3352 EXESUF=$EXESUF
3353 EXTRA_VERSION=$extra_version
3354 DEPFLAGS=$DEPFLAGS
3355 CCDEP=$CCDEP
3356 ASDEP=$ASDEP
3357 CC_DEPFLAGS=$CC_DEPFLAGS
3358 AS_DEPFLAGS=$AS_DEPFLAGS
3359 HOSTCC=$host_cc
3360 HOSTCFLAGS=$host_cflags
3361 HOSTEXESUF=$HOSTEXESUF
3362 HOSTLDFLAGS=$host_ldflags
3363 HOSTLIBS=$host_libs
3364 TARGET_EXEC=$target_exec
3365 TARGET_PATH=$target_path
3366 SDL_LIBS=$sdl_libs
3367 SDL_CFLAGS=$sdl_cflags
3368 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3369 EXTRALIBS=$extralibs
3370 INSTALL=$install
3371 LIBTARGET=${LIBTARGET}
3372 SLIBNAME=${SLIBNAME}
3373 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3374 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3375 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3376 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3377 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3378 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3379 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3380 EOF
3381
3382 get_version(){
3383     name=$1
3384     file=$source_path/$2
3385     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3386     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3387     lcname=$(tolower $name)
3388     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3389     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3390 }
3391
3392 get_version LIBSWSCALE  libswscale/swscale.h
3393 get_version LIBPOSTPROC libpostproc/postprocess.h
3394 get_version LIBAVCODEC  libavcodec/version.h
3395 get_version LIBAVDEVICE libavdevice/avdevice.h
3396 get_version LIBAVFORMAT libavformat/version.h
3397 get_version LIBAVUTIL   libavutil/avutil.h
3398 get_version LIBAVFILTER libavfilter/avfilter.h
3399
3400 cat > $TMPH <<EOF
3401 /* Automatically generated by configure - do not modify! */
3402 #ifndef FFMPEG_CONFIG_H
3403 #define FFMPEG_CONFIG_H
3404 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3405 #define FFMPEG_LICENSE "$(c_escape $license)"
3406 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3407 #define CC_TYPE "$cc_type"
3408 #define CC_VERSION $cc_version
3409 #define restrict $_restrict
3410 #define EXTERN_PREFIX "${extern_prefix}"
3411 #define EXTERN_ASM ${extern_prefix}
3412 #define SLIBSUF "$SLIBSUF"
3413 EOF
3414
3415 test -n "$malloc_prefix" &&
3416     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3417
3418 if enabled small || disabled optimizations; then
3419     echo "#undef  av_always_inline"  >> $TMPH
3420     if enabled small; then
3421         echo "#define av_always_inline inline"  >> $TMPH
3422     else
3423         echo "#define av_always_inline av_unused"  >> $TMPH
3424     fi
3425 fi
3426
3427 if enabled yasm; then
3428     append config_files $TMPASM
3429     printf '' >$TMPASM
3430 fi
3431
3432 print_config ARCH_   "$config_files" $ARCH_LIST
3433 print_config HAVE_   "$config_files" $HAVE_LIST
3434 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3435                                      $CONFIG_EXTRA      \
3436                                      $DECODER_LIST      \
3437                                      $ENCODER_LIST      \
3438                                      $HWACCEL_LIST      \
3439                                      $PARSER_LIST       \
3440                                      $BSF_LIST          \
3441                                      $DEMUXER_LIST      \
3442                                      $MUXER_LIST        \
3443                                      $FILTER_LIST       \
3444                                      $PROTOCOL_LIST     \
3445                                      $INDEV_LIST        \
3446                                      $OUTDEV_LIST       \
3447
3448 cat >>config.mak <<EOF
3449 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3450 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3451 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3452 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3453 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3454 EOF
3455
3456 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3457 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3458
3459 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3460 cp_if_changed $TMPH config.h
3461 touch .config
3462
3463 enabled yasm && cp_if_changed $TMPASM config.asm
3464
3465 cat > $TMPH <<EOF
3466 /* Generated by ffconf */
3467 #ifndef AVUTIL_AVCONFIG_H
3468 #define AVUTIL_AVCONFIG_H
3469 EOF
3470
3471 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3472
3473 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3474
3475 cp_if_changed $TMPH libavutil/avconfig.h
3476
3477 test -n "$WARNINGS" && printf "\n$WARNINGS"
3478
3479 # build pkg-config files
3480
3481 pkgconfig_generate(){
3482 name=$1
3483 shortname=${name#lib}${build_suffix}
3484 comment=$2
3485 version=$3
3486 libs=$4
3487 requires=$5
3488 enabled ${name#lib} || return 0
3489 cat <<EOF > $name/$name.pc
3490 prefix=$prefix
3491 exec_prefix=\${prefix}
3492 libdir=$libdir
3493 includedir=$incdir
3494
3495 Name: $name
3496 Description: $comment
3497 Version: $version
3498 Requires: $(enabled shared || echo $requires)
3499 Requires.private: $(enabled shared && echo $requires)
3500 Conflicts:
3501 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3502 Libs.private: $(enabled shared && echo $libs)
3503 Cflags: -I\${includedir}
3504 EOF
3505 cat <<EOF > $name/$name-uninstalled.pc
3506 prefix=
3507 exec_prefix=
3508 libdir=\${pcfiledir}
3509 includedir=${source_path}
3510
3511 Name: $name
3512 Description: $comment
3513 Version: $version
3514 Requires: $requires
3515 Conflicts:
3516 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3517 Cflags: -I\${includedir}
3518 EOF
3519 }
3520
3521 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3522 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3523 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3524 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3525 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3526 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3527 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"