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   --disable-vaapi          disable VAAPI code
 110   --disable-vdpau          disable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-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   --source-path=PATH       path to source code [$source_path]
 196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 197   --enable-cross-compile   assume a cross-compiler is used
 198   --sysroot=PATH           root of cross-build tree
 199   --sysinclude=PATH        location of cross-build system headers
 200   --target-os=OS           compiler targets OS [$target_os]
 201   --target-exec=CMD        command to run executables on target
 202   --target-path=DIR        path to view of build directory on target
 203   --nm=NM                  use nm tool
 204   --ar=AR                  use archive tool AR [$ar_default]
 205   --as=AS                  use assembler AS [$as_default]
 206   --cc=CC                  use C compiler CC [$cc_default]
 207   --ld=LD                  use linker LD
 208   --host-cc=HOSTCC         use host C compiler HOSTCC
 209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 211   --host-libs=HLIBS        use libs HLIBS when linking for host
 212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 215   --extra-version=STRING   version string suffix []
 216   --build-suffix=SUFFIX    library name suffix []
 217   --arch=ARCH              select architecture [$arch]
 218   --cpu=CPU                select the minimum required CPU (affects
 219                            instruction selection, may crash on older CPUs)
 220   --disable-asm            disable all assembler optimizations
 221   --disable-altivec        disable AltiVec optimizations
 222   --disable-amd3dnow       disable 3DNow! optimizations
 223   --disable-amd3dnowext    disable 3DNow! extended optimizations
 224   --disable-mmx            disable MMX optimizations
 225   --disable-mmx2           disable MMX2 optimizations
 226   --disable-sse            disable SSE optimizations
 227   --disable-ssse3          disable SSSE3 optimizations
 228   --disable-avx            disable AVX optimizations
 229   --disable-armv5te        disable armv5te optimizations
 230   --disable-armv6          disable armv6 optimizations
 231   --disable-armv6t2        disable armv6t2 optimizations
 232   --disable-armvfp         disable ARM VFP optimizations
 233   --disable-iwmmxt         disable iwmmxt optimizations
 234   --disable-mmi            disable MMI optimizations
 235   --disable-neon           disable neon optimizations
 236   --disable-vis            disable VIS optimizations
 237   --disable-yasm           disable use of yasm assembler
 238   --enable-pic             build position-independent code
 239   --malloc-prefix=PFX      prefix malloc and related names with PFX
 240   --enable-sram            allow use of on-chip SRAM
 241   --disable-symver         disable symbol versioning
 242
 243 Developer options (useful when working on FFmpeg itself):
 244   --disable-debug          disable debugging symbols
 245   --enable-debug=LEVEL     set the debug level [$debuglevel]
 246   --disable-optimizations  disable compiler optimizations
 247   --enable-extra-warnings  enable more compiler warnings
 248   --disable-stripping      disable stripping of executables and shared libraries
 249   --samples=PATH           location of test samples for FATE, if not set use
 250                            \$FATE_SAMPLES at make invocation time.
 251
 252 NOTE: Object files are built at the place where configure is launched.
 253 EOF
 254   exit 0
 255 }
 256
 257 quotes='""'
 258
 259 log(){
 260     echo "$@" >> $logfile
 261 }
 262
 263 log_file(){
 264     log BEGIN $1
 265     pr -n -t $1 >> $logfile
 266     log END $1
 267 }
 268
 269 echolog(){
 270     log "$@"
 271     echo "$@"
 272 }
 273
 274 warn(){
 275     log "WARNING: $*"
 276     WARNINGS="${WARNINGS}WARNING: $*\n"
 277 }
 278
 279 die(){
 280     echolog "$@"
 281     cat <<EOF
 282
 283 If you think configure made a mistake, make sure you are using the latest
 284 version from Git.  If the latest version fails, report the problem to the
 285 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 286 EOF
 287     if disabled logging; then
 288         cat <<EOF
 289 Rerun configure with logging enabled (do not use --disable-logging), and
 290 include the log this produces with your report.
 291 EOF
 292     else
 293 cat <<EOF
 294 Include the log file "$logfile" produced by configure as this will help
 295 solving the problem.
 296 EOF
 297     fi
 298     exit 1
 299 }
 300
 301 # Avoid locale weirdness, besides we really just want to translate ASCII.
 302 toupper(){
 303     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 304 }
 305
 306 tolower(){
 307     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 308 }
 309
 310 c_escape(){
 311     echo "$*" | sed 's/["\\]/\\\0/g'
 312 }
 313
 314 sh_quote(){
 315     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 316     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 317     echo "$v"
 318 }
 319
 320 cleanws(){
 321     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 322 }
 323
 324 filter(){
 325     pat=$1
 326     shift
 327     for v; do
 328         eval "case $v in $pat) echo $v ;; esac"
 329     done
 330 }
 331
 332 filter_out(){
 333     pat=$1
 334     shift
 335     for v; do
 336         eval "case $v in $pat) ;; *) echo $v ;; esac"
 337     done
 338 }
 339
 340 map(){
 341     m=$1
 342     shift
 343     for v; do eval $m; done
 344 }
 345
 346 set_all(){
 347     value=$1
 348     shift
 349     for var in $*; do
 350         eval $var=$value
 351     done
 352 }
 353
 354 set_weak(){
 355     value=$1
 356     shift
 357     for var; do
 358         eval : \${$var:=$value}
 359     done
 360 }
 361
 362 set_safe(){
 363     var=$1
 364     shift
 365     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 366 }
 367
 368 get_safe(){
 369     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 370 }
 371
 372 pushvar(){
 373     for var in $*; do
 374         eval level=\${${var}_level:=0}
 375         eval ${var}_${level}="\$$var"
 376         eval ${var}_level=$(($level+1))
 377     done
 378 }
 379
 380 popvar(){
 381     for var in $*; do
 382         eval level=\${${var}_level:-0}
 383         test $level = 0 && continue
 384         eval level=$(($level-1))
 385         eval $var="\${${var}_${level}}"
 386         eval ${var}_level=$level
 387         eval unset ${var}_${level}
 388     done
 389 }
 390
 391 enable(){
 392     set_all yes $*
 393 }
 394
 395 disable(){
 396     set_all no $*
 397 }
 398
 399 enable_weak(){
 400     set_weak yes $*
 401 }
 402
 403 disable_weak(){
 404     set_weak no $*
 405 }
 406
 407 enable_safe(){
 408     for var; do
 409         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 410     done
 411 }
 412
 413 disable_safe(){
 414     for var; do
 415         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 416     done
 417 }
 418
 419 do_enable_deep(){
 420     for var; do
 421         enabled $var && continue
 422         eval sel="\$${var}_select"
 423         eval sgs="\$${var}_suggest"
 424         pushvar var sgs
 425         enable_deep $sel
 426         popvar sgs
 427         enable_deep_weak $sgs
 428         popvar var
 429     done
 430 }
 431
 432 enable_deep(){
 433     do_enable_deep $*
 434     enable $*
 435 }
 436
 437 enable_deep_weak(){
 438     do_enable_deep $*
 439     enable_weak $*
 440 }
 441
 442 enabled(){
 443     test "${1#!}" = "$1" && op== || op=!=
 444     eval test "x\$${1#!}" $op "xyes"
 445 }
 446
 447 disabled(){
 448     test "${1#!}" = "$1" && op== || op=!=
 449     eval test "x\$${1#!}" $op "xno"
 450 }
 451
 452 enabled_all(){
 453     for opt; do
 454         enabled $opt || return 1
 455     done
 456 }
 457
 458 disabled_all(){
 459     for opt; do
 460         disabled $opt || return 1
 461     done
 462 }
 463
 464 enabled_any(){
 465     for opt; do
 466         enabled $opt && return 0
 467     done
 468 }
 469
 470 disabled_any(){
 471     for opt; do
 472         disabled $opt && return 0
 473     done
 474     return 1
 475 }
 476
 477 set_default(){
 478     for opt; do
 479         eval : \${$opt:=\$${opt}_default}
 480     done
 481 }
 482
 483 is_in(){
 484     value=$1
 485     shift
 486     for var in $*; do
 487         [ $var = $value ] && return 0
 488     done
 489     return 1
 490 }
 491
 492 check_deps(){
 493     for cfg; do
 494         cfg="${cfg#!}"
 495         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 496         disabled ${cfg}_checking && continue
 497         enable ${cfg}_checking
 498
 499         eval dep_all="\$${cfg}_deps"
 500         eval dep_any="\$${cfg}_deps_any"
 501         eval dep_sel="\$${cfg}_select"
 502         eval dep_sgs="\$${cfg}_suggest"
 503         eval dep_ifa="\$${cfg}_if"
 504         eval dep_ifn="\$${cfg}_if_any"
 505
 506         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 508         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509
 510         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 511         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 512         enabled_all  $dep_all || disable $cfg
 513         enabled_any  $dep_any || disable $cfg
 514         disabled_any $dep_sel && disable $cfg
 515
 516         if enabled $cfg; then
 517             eval dep_extralibs="\$${cfg}_extralibs"
 518             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 519             enable_deep $dep_sel
 520             enable_deep_weak $dep_sgs
 521         fi
 522
 523         disable ${cfg}_checking
 524     done
 525 }
 526
 527 print_config_h(){
 528     enabled $1 && v=1 || v=0
 529     echo "#define $2 $v"
 530 }
 531
 532 print_config_mak(){
 533     enabled $1 && v= || v=!
 534     echo "$v$2=yes"
 535 }
 536
 537 print_config_asm(){
 538     enabled $1 && echo "%define $2"
 539 }
 540
 541 print_config(){
 542     pfx=$1
 543     files=$2
 544     shift 2
 545     for cfg; do
 546         ucname="$(toupper $cfg)"
 547         for f in $files; do
 548             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 549         done
 550     done
 551 }
 552
 553 print_enabled(){
 554     test "$1" = -n && end=" " && shift || end="\n"
 555     suf=$1
 556     shift
 557     for v; do
 558         enabled $v && printf "%s$end" ${v%$suf};
 559     done
 560 }
 561
 562 append(){
 563     var=$1
 564     shift
 565     eval "$var=\"\$$var $*\""
 566 }
 567
 568 prepend(){
 569     var=$1
 570     shift
 571     eval "$var=\"$* \$$var\""
 572 }
 573
 574 add_cppflags(){
 575     append CPPFLAGS $($filter_cppflags "$@")
 576 }
 577
 578 add_cflags(){
 579     append CFLAGS $($filter_cflags "$@")
 580 }
 581
 582 add_asflags(){
 583     append ASFLAGS $($filter_asflags "$@")
 584 }
 585
 586 add_ldflags(){
 587     append LDFLAGS "$@"
 588 }
 589
 590 add_extralibs(){
 591     prepend extralibs "$@"
 592 }
 593
 594 check_cmd(){
 595     log "$@"
 596     "$@" >> $logfile 2>&1
 597 }
 598
 599 check_cc(){
 600     log check_cc "$@"
 601     cat > $TMPC
 602     log_file $TMPC
 603     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 604 }
 605
 606 check_cpp(){
 607     log check_cpp "$@"
 608     cat > $TMPC
 609     log_file $TMPC
 610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 611 }
 612
 613 check_as(){
 614     log check_as "$@"
 615     cat > $TMPC
 616     log_file $TMPC
 617     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 618 }
 619
 620 check_asm(){
 621     log check_asm "$@"
 622     name="$1"
 623     code="$2"
 624     shift 2
 625     disable $name
 626     check_as "$@" <<EOF && enable $name
 627 void foo(void){ __asm__ volatile($code); }
 628 EOF
 629 }
 630
 631 check_yasm(){
 632     log check_yasm "$@"
 633     echo "$1" > $TMPS
 634     log_file $TMPS
 635     shift 1
 636     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 637 }
 638
 639 check_ld(){
 640     log check_ld "$@"
 641     flags=''
 642     libs=''
 643     for f; do
 644         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 645     done
 646     check_cc $($filter_cflags $flags) || return
 647     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 648 }
 649
 650 check_cppflags(){
 651     log check_cppflags "$@"
 652     set -- $($filter_cppflags "$@")
 653     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 654 int x;
 655 EOF
 656 }
 657
 658 check_cflags(){
 659     log check_cflags "$@"
 660     set -- $($filter_cflags "$@")
 661     check_cc "$@" <<EOF && append CFLAGS "$@"
 662 int x;
 663 EOF
 664 }
 665
 666 test_ldflags(){
 667     log test_ldflags "$@"
 668     check_ld "$@" <<EOF
 669 int main(void){ return 0; }
 670 EOF
 671 }
 672
 673 check_ldflags(){
 674     log check_ldflags "$@"
 675     test_ldflags "$@" && add_ldflags "$@"
 676 }
 677
 678 check_header(){
 679     log check_header "$@"
 680     header=$1
 681     shift
 682     disable_safe $header
 683     check_cpp "$@" <<EOF && enable_safe $header
 684 #include <$header>
 685 int x;
 686 EOF
 687 }
 688
 689 check_func(){
 690     log check_func "$@"
 691     func=$1
 692     shift
 693     disable $func
 694     check_ld "$@" <<EOF && enable $func
 695 extern int $func();
 696 int main(void){ $func(); }
 697 EOF
 698 }
 699
 700 check_mathfunc(){
 701     log check_mathfunc "$@"
 702     func=$1
 703     shift
 704     disable $func
 705     check_ld "$@" <<EOF && enable $func
 706 #include <math.h>
 707 float foo(float f) { return $func(f); }
 708 int main(void){ return 0; }
 709 EOF
 710 }
 711
 712 check_func_headers(){
 713     log check_func_headers "$@"
 714     headers=$1
 715     funcs=$2
 716     shift 2
 717     {
 718         for hdr in $headers; do
 719             echo "#include <$hdr>"
 720         done
 721         for func in $funcs; do
 722             echo "long check_$func(void) { return (long) $func; }"
 723         done
 724         echo "int main(void) { return 0; }"
 725     } | check_ld "$@" && enable $funcs && enable_safe $headers
 726 }
 727
 728 check_cpp_condition(){
 729     log check_cpp_condition "$@"
 730     header=$1
 731     condition=$2
 732     shift 2
 733     check_cpp $($filter_cppflags "$@") <<EOF
 734 #include <$header>
 735 #if !($condition)
 736 #error "unsatisfied condition: $condition"
 737 #endif
 738 EOF
 739 }
 740
 741 check_lib(){
 742     log check_lib "$@"
 743     header="$1"
 744     func="$2"
 745     shift 2
 746     check_header $header && check_func $func "$@" && add_extralibs "$@"
 747 }
 748
 749 check_lib2(){
 750     log check_lib2 "$@"
 751     headers="$1"
 752     funcs="$2"
 753     shift 2
 754     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 755 }
 756
 757 check_pkg_config(){
 758     log check_pkg_config "$@"
 759     pkg="$1"
 760     headers="$2"
 761     funcs="$3"
 762     shift 3
 763     $pkg_config --exists $pkg 2>/dev/null || return
 764     pkg_cflags=$($pkg_config --cflags $pkg)
 765     pkg_libs=$($pkg_config --libs $pkg)
 766     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 767         set_safe ${pkg}_cflags $pkg_cflags   &&
 768         set_safe ${pkg}_libs   $pkg_libs
 769 }
 770
 771 check_exec(){
 772     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 773 }
 774
 775 check_exec_crash(){
 776     code=$(cat)
 777
 778     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 779     # are safe but may not be available everywhere.  Thus we use
 780     # raise(SIGTERM) instead.  The check is run in a subshell so we
 781     # can redirect the "Terminated" message from the shell.  SIGBUS
 782     # is not defined by standard C so it is used conditionally.
 783
 784     (check_exec "$@") >> $logfile 2>&1 <<EOF
 785 #include <signal.h>
 786 static void sighandler(int sig){
 787     raise(SIGTERM);
 788 }
 789 int main(void){
 790     signal(SIGILL, sighandler);
 791     signal(SIGFPE, sighandler);
 792     signal(SIGSEGV, sighandler);
 793 #ifdef SIGBUS
 794     signal(SIGBUS, sighandler);
 795 #endif
 796     { $code }
 797 }
 798 EOF
 799 }
 800
 801 check_type(){
 802     log check_type "$@"
 803     headers=$1
 804     type=$2
 805     shift 2
 806     disable_safe "$type"
 807     incs=""
 808     for hdr in $headers; do
 809         incs="$incs
 810 #include <$hdr>"
 811     done
 812     check_cc "$@" <<EOF && enable_safe "$type"
 813 $incs
 814 $type v;
 815 EOF
 816 }
 817
 818 check_struct(){
 819     log check_type "$@"
 820     headers=$1
 821     struct=$2
 822     member=$3
 823     shift 3
 824     disable_safe "${struct}_${member}"
 825     incs=""
 826     for hdr in $headers; do
 827         incs="$incs
 828 #include <$hdr>"
 829     done
 830     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 831 $incs
 832 const void *p = &(($struct *)0)->$member;
 833 EOF
 834 }
 835
 836 require(){
 837     name="$1"
 838     header="$2"
 839     func="$3"
 840     shift 3
 841     check_lib $header $func "$@" || die "ERROR: $name not found"
 842 }
 843
 844 require2(){
 845     name="$1"
 846     headers="$2"
 847     func="$3"
 848     shift 3
 849     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 850 }
 851
 852 require_pkg_config(){
 853     pkg="$1"
 854     check_pkg_config "$@" || die "ERROR: $pkg not found"
 855     add_cflags    $(get_safe ${pkg}_cflags)
 856     add_extralibs $(get_safe ${pkg}_libs)
 857 }
 858
 859 check_host_cc(){
 860     log check_host_cc "$@"
 861     cat > $TMPC
 862     log_file $TMPC
 863     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 864 }
 865
 866 check_host_cflags(){
 867     log check_host_cflags "$@"
 868     check_host_cc "$@" <<EOF && append host_cflags "$@"
 869 int x;
 870 EOF
 871 }
 872
 873 apply(){
 874     file=$1
 875     shift
 876     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 877 }
 878
 879 cp_if_changed(){
 880     cmp -s "$1" "$2" &&
 881         echo "$2 is unchanged" ||
 882         cp -f "$1" "$2"
 883 }
 884
 885 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 886 # system-dependent things.
 887
 888 COMPONENT_LIST="
 889     bsfs
 890     decoders
 891     demuxers
 892     encoders
 893     filters
 894     hwaccels
 895     indevs
 896     muxers
 897     outdevs
 898     parsers
 899     protocols
 900 "
 901
 902 CONFIG_LIST="
 903     $COMPONENT_LIST
 904     aandct
 905     ac3dsp
 906     avcodec
 907     avdevice
 908     avfilter
 909     avformat
 910     avisynth
 911     bzlib
 912     crystalhd
 913     dct
 914     doc
 915     dwt
 916     dxva2
 917     fastdiv
 918     ffmpeg
 919     ffplay
 920     ffprobe
 921     ffserver
 922     fft
 923     frei0r
 924     golomb
 925     gpl
 926     gray
 927     h264dsp
 928     h264pred
 929     hardcoded_tables
 930     huffman
 931     libcelt
 932     libdc1394
 933     libdirac
 934     libfaac
 935     libfreetype
 936     libgsm
 937     libmp3lame
 938     libnut
 939     libopencore_amrnb
 940     libopencore_amrwb
 941     libopencv
 942     libopenjpeg
 943     librtmp
 944     libschroedinger
 945     libspeex
 946     libtheora
 947     libvo_aacenc
 948     libvo_amrwbenc
 949     libvorbis
 950     libvpx
 951     libx264
 952     libxavs
 953     libxvid
 954     lpc
 955     lsp
 956     mdct
 957     memalign_hack
 958     mlib
 959     mpegaudiodsp
 960     network
 961     nonfree
 962     pic
 963     postproc
 964     rdft
 965     rtpdec
 966     runtime_cpudetect
 967     shared
 968     sinewin
 969     small
 970     sram
 971     static
 972     swscale
 973     swscale_alpha
 974     vaapi
 975     vdpau
 976     version3
 977     x11grab
 978     zlib
 979 "
 980
 981 THREADS_LIST='
 982     pthreads
 983     w32threads
 984 '
 985
 986 ARCH_LIST='
 987     alpha
 988     arm
 989     avr32
 990     avr32_ap
 991     avr32_uc
 992     bfin
 993     ia64
 994     m68k
 995     mips
 996     mips64
 997     parisc
 998     ppc
 999     ppc64
1000     s390
1001     sh4
1002     sparc
1003     sparc64
1004     tomi
1005     x86
1006     x86_32
1007     x86_64
1008 '
1009
1010 ARCH_EXT_LIST='
1011     altivec
1012     amd3dnow
1013     amd3dnowext
1014     armv5te
1015     armv6
1016     armv6t2
1017     armvfp
1018     avx
1019     iwmmxt
1020     mmi
1021     mmx
1022     mmx2
1023     neon
1024     ppc4xx
1025     sse
1026     ssse3
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     libdc1394_1
1080     libdc1394_2
1081     llrint
1082     llrintf
1083     local_aligned_16
1084     local_aligned_8
1085     localtime_r
1086     log2
1087     log2f
1088     loongson
1089     lrint
1090     lrintf
1091     lzo1x_999_compress
1092     machine_ioctl_bt848_h
1093     machine_ioctl_meteor_h
1094     malloc_h
1095     MapViewOfFile
1096     memalign
1097     mkstemp
1098     mmap
1099     pld
1100     posix_memalign
1101     round
1102     roundf
1103     sdl
1104     sdl_video_size
1105     setmode
1106     sndio_h
1107     socklen_t
1108     soundcard_h
1109     poll_h
1110     setrlimit
1111     strerror_r
1112     strtok_r
1113     struct_addrinfo
1114     struct_ipv6_mreq
1115     struct_sockaddr_in6
1116     struct_sockaddr_sa_len
1117     struct_sockaddr_storage
1118     symver
1119     symver_gnu_asm
1120     symver_asm_label
1121     sys_mman_h
1122     sys_resource_h
1123     sys_select_h
1124     sys_soundcard_h
1125     sys_videoio_h
1126     ten_operands
1127     termios_h
1128     threads
1129     trunc
1130     truncf
1131     vfp_args
1132     VirtualAlloc
1133     winsock2_h
1134     xform_asm
1135     xmm_clobbers
1136     yasm
1137 "
1138
1139 # options emitted with CONFIG_ prefix but not available on command line
1140 CONFIG_EXTRA="
1141     avutil
1142     gplv3
1143     lgplv3
1144 "
1145
1146 CMDLINE_SELECT="
1147     $ARCH_EXT_LIST
1148     $CONFIG_LIST
1149     $THREADS_LIST
1150     asm
1151     cross_compile
1152     debug
1153     extra_warnings
1154     logging
1155     optimizations
1156     stripping
1157     symver
1158     yasm
1159 "
1160
1161 PATHS_LIST='
1162     bindir
1163     datadir
1164     incdir
1165     libdir
1166     mandir
1167     prefix
1168     shlibdir
1169 '
1170
1171 CMDLINE_SET="
1172     $PATHS_LIST
1173     ar
1174     arch
1175     as
1176     build_suffix
1177     cc
1178     cpu
1179     cross_prefix
1180     dep_cc
1181     extra_version
1182     host_cc
1183     host_cflags
1184     host_ldflags
1185     host_libs
1186     host_os
1187     install
1188     ld
1189     logfile
1190     malloc_prefix
1191     nm
1192     pkg_config
1193     samples
1194     source_path
1195     strip
1196     sysinclude
1197     sysroot
1198     target_exec
1199     target_os
1200     target_path
1201 "
1202
1203 CMDLINE_APPEND="
1204     extra_cflags
1205 "
1206
1207 # code dependency declarations
1208
1209 # architecture extensions
1210
1211 armv5te_deps="arm"
1212 armv6_deps="arm"
1213 armv6t2_deps="arm"
1214 armvfp_deps="arm"
1215 iwmmxt_deps="arm"
1216 neon_deps="arm"
1217
1218 mmi_deps="mips"
1219
1220 altivec_deps="ppc"
1221 ppc4xx_deps="ppc"
1222
1223 vis_deps="sparc"
1224
1225 x86_64_suggest="cmov fast_cmov"
1226 amd3dnow_deps="mmx"
1227 amd3dnowext_deps="amd3dnow"
1228 mmx_deps="x86"
1229 mmx2_deps="mmx"
1230 sse_deps="mmx"
1231 ssse3_deps="sse"
1232 avx_deps="ssse3"
1233
1234 aligned_stack_if_any="ppc x86"
1235 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1236 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1237 fast_unaligned_if_any="armv6 ppc x86"
1238
1239 need_memalign="altivec neon sse"
1240 inline_asm_deps="!tms470"
1241
1242 symver_if_any="symver_asm_label symver_gnu_asm"
1243
1244 # subsystems
1245 dct_select="rdft"
1246 mdct_select="fft"
1247 rdft_select="fft"
1248 mpegaudiodsp_select="dct"
1249
1250 # decoders / encoders / hardware accelerators
1251 aac_decoder_select="mdct sinewin"
1252 aac_encoder_select="mdct sinewin"
1253 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1254 ac3_decoder_select="mdct ac3dsp ac3_parser"
1255 ac3_encoder_select="mdct ac3dsp"
1256 ac3_fixed_encoder_select="mdct ac3dsp"
1257 alac_encoder_select="lpc"
1258 amrnb_decoder_select="lsp"
1259 amrwb_decoder_select="lsp"
1260 atrac1_decoder_select="mdct sinewin"
1261 atrac3_decoder_select="mdct"
1262 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1263 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1264 cavs_decoder_select="golomb"
1265 cook_decoder_select="mdct sinewin"
1266 cscd_decoder_suggest="zlib"
1267 dca_decoder_select="mdct"
1268 dnxhd_encoder_select="aandct"
1269 dxa_decoder_select="zlib"
1270 eac3_decoder_select="ac3_decoder"
1271 eamad_decoder_select="aandct"
1272 eatgq_decoder_select="aandct"
1273 eatqi_decoder_select="aandct"
1274 ffv1_decoder_select="golomb"
1275 flac_decoder_select="golomb"
1276 flac_encoder_select="golomb lpc"
1277 flashsv_decoder_select="zlib"
1278 flashsv_encoder_select="zlib"
1279 flashsv2_encoder_select="zlib"
1280 flv_decoder_select="h263_decoder"
1281 flv_encoder_select="h263_encoder"
1282 fraps_decoder_select="huffman"
1283 h261_encoder_select="aandct"
1284 h263_decoder_select="h263_parser"
1285 h263_encoder_select="aandct"
1286 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1287 h263i_decoder_select="h263_decoder"
1288 h263p_encoder_select="h263_encoder"
1289 h264_decoder_select="golomb h264dsp h264pred"
1290 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1291 h264_dxva2_hwaccel_deps="dxva2api_h"
1292 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1293 h264_vaapi_hwaccel_select="vaapi"
1294 h264_vdpau_decoder_select="vdpau h264_decoder"
1295 imc_decoder_select="fft mdct sinewin"
1296 jpegls_decoder_select="golomb"
1297 jpegls_encoder_select="golomb"
1298 ljpeg_encoder_select="aandct"
1299 loco_decoder_select="golomb"
1300 mjpeg_encoder_select="aandct"
1301 mlp_decoder_select="mlp_parser"
1302 mp1_decoder_select="mpegaudiodsp"
1303 mp2_decoder_select="mpegaudiodsp"
1304 mp3adu_decoder_select="mpegaudiodsp"
1305 mp3_decoder_select="mpegaudiodsp"
1306 mp3on4_decoder_select="mpegaudiodsp"
1307 mp1float_decoder_select="mpegaudiodsp"
1308 mp2float_decoder_select="mpegaudiodsp"
1309 mp3adufloat_decoder_select="mpegaudiodsp"
1310 mp3float_decoder_select="mpegaudiodsp"
1311 mp3on4float_decoder_select="mpegaudiodsp"
1312 mpeg1video_encoder_select="aandct"
1313 mpeg2video_encoder_select="aandct"
1314 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1315 mpeg4_encoder_select="h263_encoder"
1316 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1317 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1318 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1319 mpeg2_crystalhd_decoder_select="crystalhd"
1320 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1321 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1322 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1323 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1324 mpeg4_crystalhd_decoder_select="crystalhd"
1325 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1326 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1327 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1328 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1329 msmpeg4_crystalhd_decoder_select="crystalhd"
1330 msmpeg4v1_decoder_select="h263_decoder"
1331 msmpeg4v1_encoder_select="h263_encoder"
1332 msmpeg4v2_decoder_select="h263_decoder"
1333 msmpeg4v2_encoder_select="h263_encoder"
1334 msmpeg4v3_decoder_select="h263_decoder"
1335 msmpeg4v3_encoder_select="h263_encoder"
1336 nellymoser_decoder_select="mdct sinewin"
1337 nellymoser_encoder_select="mdct sinewin"
1338 png_decoder_select="zlib"
1339 png_encoder_select="zlib"
1340 qcelp_decoder_select="lsp"
1341 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1342 ra_144_encoder_select="lpc"
1343 rv10_decoder_select="h263_decoder"
1344 rv10_encoder_select="h263_encoder"
1345 rv20_decoder_select="h263_decoder"
1346 rv20_encoder_select="h263_encoder"
1347 rv30_decoder_select="golomb h264pred"
1348 rv40_decoder_select="golomb h264pred"
1349 shorten_decoder_select="golomb"
1350 sipr_decoder_select="lsp"
1351 snow_decoder_select="dwt"
1352 snow_encoder_select="aandct dwt"
1353 sonic_decoder_select="golomb"
1354 sonic_encoder_select="golomb"
1355 sonic_ls_encoder_select="golomb"
1356 svq1_encoder_select="aandct"
1357 svq3_decoder_select="golomb h264dsp h264pred"
1358 svq3_decoder_suggest="zlib"
1359 theora_decoder_select="vp3_decoder"
1360 tiff_decoder_suggest="zlib"
1361 tiff_encoder_suggest="zlib"
1362 truehd_decoder_select="mlp_decoder"
1363 tscc_decoder_select="zlib"
1364 twinvq_decoder_select="mdct lsp sinewin"
1365 vc1_decoder_select="h263_decoder"
1366 vc1_crystalhd_decoder_select="crystalhd"
1367 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1368 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1369 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1370 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1371 vorbis_decoder_select="mdct"
1372 vorbis_encoder_select="mdct"
1373 vp6_decoder_select="huffman"
1374 vp6a_decoder_select="vp6_decoder"
1375 vp6f_decoder_select="vp6_decoder"
1376 vp8_decoder_select="h264pred"
1377 wmapro_decoder_select="mdct sinewin"
1378 wmav1_decoder_select="mdct sinewin"
1379 wmav1_encoder_select="mdct sinewin"
1380 wmav2_decoder_select="mdct sinewin"
1381 wmav2_encoder_select="mdct sinewin"
1382 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1383 wmv1_decoder_select="h263_decoder"
1384 wmv1_encoder_select="h263_encoder"
1385 wmv2_decoder_select="h263_decoder"
1386 wmv2_encoder_select="h263_encoder"
1387 wmv3_decoder_select="vc1_decoder"
1388 wmv3_crystalhd_decoder_select="crystalhd"
1389 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1390 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1391 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1392 zlib_decoder_select="zlib"
1393 zlib_encoder_select="zlib"
1394 zmbv_decoder_select="zlib"
1395 zmbv_encoder_select="zlib"
1396
1397 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1398 vaapi_deps="va_va_h"
1399 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1400
1401 # parsers
1402 h264_parser_select="golomb h264dsp h264pred"
1403
1404 # external libraries
1405 libcelt_decoder_deps="libcelt"
1406 libdirac_decoder_deps="libdirac !libschroedinger"
1407 libdirac_encoder_deps="libdirac"
1408 libfaac_encoder_deps="libfaac"
1409 libgsm_decoder_deps="libgsm"
1410 libgsm_encoder_deps="libgsm"
1411 libgsm_ms_decoder_deps="libgsm"
1412 libgsm_ms_encoder_deps="libgsm"
1413 libmp3lame_encoder_deps="libmp3lame"
1414 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1415 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1416 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1417 libopenjpeg_decoder_deps="libopenjpeg"
1418 libschroedinger_decoder_deps="libschroedinger"
1419 libschroedinger_encoder_deps="libschroedinger"
1420 libspeex_decoder_deps="libspeex"
1421 libtheora_encoder_deps="libtheora"
1422 libvo_aacenc_encoder_deps="libvo_aacenc"
1423 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1424 libvorbis_encoder_deps="libvorbis"
1425 libvpx_decoder_deps="libvpx"
1426 libvpx_encoder_deps="libvpx"
1427 libx264_encoder_deps="libx264"
1428 libxavs_encoder_deps="libxavs"
1429 libxvid_encoder_deps="libxvid"
1430
1431 # demuxers / muxers
1432 ac3_demuxer_select="ac3_parser"
1433 asf_stream_muxer_select="asf_muxer"
1434 avisynth_demuxer_deps="avisynth"
1435 dirac_demuxer_select="dirac_parser"
1436 eac3_demuxer_select="ac3_parser"
1437 flac_demuxer_select="flac_parser"
1438 ipod_muxer_select="mov_muxer"
1439 libnut_demuxer_deps="libnut"
1440 libnut_muxer_deps="libnut"
1441 matroska_audio_muxer_select="matroska_muxer"
1442 matroska_demuxer_suggest="zlib bzlib"
1443 mov_demuxer_suggest="zlib"
1444 mp3_demuxer_select="mpegaudio_parser"
1445 mp4_muxer_select="mov_muxer"
1446 mpegtsraw_demuxer_select="mpegts_demuxer"
1447 mxf_d10_muxer_select="mxf_muxer"
1448 ogg_demuxer_select="golomb"
1449 psp_muxer_select="mov_muxer"
1450 rtp_demuxer_select="sdp_demuxer"
1451 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1452 rtsp_demuxer_select="http_protocol rtpdec"
1453 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1454 sap_demuxer_select="sdp_demuxer"
1455 sap_muxer_select="rtp_muxer rtp_protocol"
1456 sdp_demuxer_select="rtpdec"
1457 spdif_muxer_select="aac_parser"
1458 tg2_muxer_select="mov_muxer"
1459 tgp_muxer_select="mov_muxer"
1460 w64_demuxer_deps="wav_demuxer"
1461
1462 # indevs / outdevs
1463 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1464 alsa_outdev_deps="alsa_asoundlib_h"
1465 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1466 dshow_indev_deps="IBaseFilter"
1467 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1468 dv1394_indev_deps="dv1394 dv_demuxer"
1469 fbdev_indev_deps="linux_fb_h"
1470 jack_indev_deps="jack_jack_h sem_timedwait"
1471 libdc1394_indev_deps="libdc1394"
1472 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1473 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
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 pthreads"
1493
1494 # filters
1495 blackframe_filter_deps="gpl"
1496 cropdetect_filter_deps="gpl"
1497 drawtext_filter_deps="libfreetype"
1498 frei0r_filter_deps="frei0r dlopen strtok_r"
1499 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1500 hqdn3d_filter_deps="gpl"
1501 movie_filter_deps="avcodec avformat"
1502 mp_filter_deps="gpl avcodec"
1503 ocv_filter_deps="libopencv"
1504 scale_filter_deps="swscale"
1505 yadif_filter_deps="gpl"
1506
1507 # libraries
1508 avdevice_deps="avcodec avformat"
1509 avformat_deps="avcodec"
1510 postproc_deps="gpl"
1511
1512 # programs
1513 ffmpeg_deps="avcodec avformat swscale"
1514 ffmpeg_select="buffer_filter"
1515 ffplay_deps="avcodec avformat swscale sdl"
1516 ffplay_select="rdft"
1517 ffprobe_deps="avcodec avformat"
1518 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1519 ffserver_extralibs='$ldl'
1520
1521 doc_deps="texi2html"
1522
1523 # tests
1524
1525 test_deps(){
1526     suf1=$1
1527     suf2=$2
1528     shift 2
1529     for v; do
1530         dep=${v%=*}
1531         tests=${v#*=}
1532         for name in ${tests}; do
1533             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1534         done
1535     done
1536 }
1537
1538 set_ne_test_deps(){
1539     eval ${1}_be_test_deps="bigendian"
1540     eval ${1}_le_test_deps="!bigendian"
1541 }
1542
1543 test_deps _encoder _decoder                                             \
1544     adpcm_g726=g726                                                     \
1545     adpcm_ima_qt                                                        \
1546     adpcm_ima_wav                                                       \
1547     adpcm_ms                                                            \
1548     adpcm_swf                                                           \
1549     adpcm_yamaha=adpcm_yam                                              \
1550     alac                                                                \
1551     asv1                                                                \
1552     asv2                                                                \
1553     bmp                                                                 \
1554     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1555     dvvideo="dv dv50"                                                   \
1556     ffv1                                                                \
1557     flac                                                                \
1558     flashsv                                                             \
1559     flv                                                                 \
1560     gif                                                                 \
1561     h261                                                                \
1562     h263="h263 h263p"                                                   \
1563     huffyuv                                                             \
1564     jpegls                                                              \
1565     mjpeg="jpg mjpeg ljpeg"                                             \
1566     mp2                                                                 \
1567     mpeg1video="mpeg mpeg1b"                                            \
1568     mpeg2video="mpeg2 mpeg2thread"                                      \
1569     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1570     msmpeg4v3=msmpeg4                                                   \
1571     msmpeg4v2                                                           \
1572     pbm=pbmpipe                                                         \
1573     pcx                                                                 \
1574     pgm="pgm pgmpipe"                                                   \
1575     png                                                                 \
1576     ppm="ppm ppmpipe"                                                   \
1577     rawvideo="rgb yuv"                                                  \
1578     roq                                                                 \
1579     rv10                                                                \
1580     rv20                                                                \
1581     sgi                                                                 \
1582     snow="snow snowll"                                                  \
1583     svq1                                                                \
1584     targa=tga                                                           \
1585     tiff                                                                \
1586     wmav1                                                               \
1587     wmav2                                                               \
1588     wmv1                                                                \
1589     wmv2                                                                \
1590
1591 test_deps _muxer _demuxer                                               \
1592     aiff                                                                \
1593     pcm_alaw=alaw                                                       \
1594     asf                                                                 \
1595     au                                                                  \
1596     avi                                                                 \
1597     dv=dv_fmt                                                           \
1598     ffm                                                                 \
1599     flv=flv_fmt                                                         \
1600     gxf                                                                 \
1601     matroska=mkv                                                        \
1602     mmf                                                                 \
1603     mov                                                                 \
1604     pcm_mulaw=mulaw                                                     \
1605     mxf                                                                 \
1606     nut                                                                 \
1607     ogg                                                                 \
1608     rawvideo=pixfmt                                                     \
1609     rm                                                                  \
1610     swf                                                                 \
1611     mpegts=ts                                                           \
1612     voc                                                                 \
1613     wav                                                                 \
1614     yuv4mpegpipe=yuv4mpeg                                               \
1615
1616 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1617 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1618
1619 set_ne_test_deps pixdesc
1620 set_ne_test_deps pixfmts_copy
1621 set_ne_test_deps pixfmts_crop
1622 set_ne_test_deps pixfmts_hflip
1623 set_ne_test_deps pixfmts_null
1624 set_ne_test_deps pixfmts_pad
1625 set_ne_test_deps pixfmts_scale
1626 set_ne_test_deps pixfmts_vflip
1627
1628 # default parameters
1629
1630 logfile="config.log"
1631
1632 # installation paths
1633 prefix_default="/usr/local"
1634 bindir_default='${prefix}/bin'
1635 datadir_default='${prefix}/share/ffmpeg'
1636 incdir_default='${prefix}/include'
1637 libdir_default='${prefix}/lib'
1638 mandir_default='${prefix}/share/man'
1639 shlibdir_default="$libdir_default"
1640
1641 # toolchain
1642 ar_default="ar"
1643 cc_default="gcc"
1644 cc_version=\"unknown\"
1645 host_cc_default="gcc"
1646 install="install"
1647 ln_s="ln -sf"
1648 nm_default="nm"
1649 objformat="elf"
1650 pkg_config_default=pkg-config
1651 ranlib="ranlib"
1652 strip_default="strip"
1653 yasmexe="yasm"
1654 nogas=":"
1655
1656 nm_opts='-g'
1657
1658 # machine
1659 arch_default=$(uname -m)
1660 cpu="generic"
1661
1662 # OS
1663 target_os_default=$(tolower $(uname -s))
1664 host_os=$target_os_default
1665
1666 # configurable options
1667 enable avcodec
1668 enable avdevice
1669 enable avfilter
1670 enable avformat
1671 enable avutil
1672 enable asm
1673 enable debug
1674 enable doc
1675 enable fastdiv
1676 enable ffmpeg
1677 enable ffplay
1678 enable ffprobe
1679 enable ffserver
1680 enable network
1681 enable optimizations
1682 enable postproc
1683 enable protocols
1684 enable static
1685 enable stripping
1686 enable swscale
1687 enable swscale_alpha
1688
1689 # build settings
1690 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1691 FFSERVERLDFLAGS=-Wl,-E
1692 LIBPREF="lib"
1693 LIBSUF=".a"
1694 FULLNAME='$(NAME)$(BUILDSUF)'
1695 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1696 SLIBPREF="lib"
1697 SLIBSUF=".so"
1698 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1699 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1700 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1701 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1702
1703 CC_O='-o $@'
1704
1705 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1706 host_libs='-lm'
1707
1708 target_path='$(CURDIR)'
1709
1710 # since the object filename is not given with the -MM flag, the compiler
1711 # is only able to print the basename, and we must add the path ourselves
1712 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1713 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1714
1715 # find source path
1716 source_path="$(dirname "$0")"
1717 enable source_path_used
1718 if test -f configure; then
1719     source_path="$(pwd)"
1720     disable source_path_used
1721 else
1722     source_path="$(cd "$source_path"; pwd)"
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 elif $cc -v 2>&1 | grep -q Open64; then
2104     cc_type=open64
2105     cc_version=__OPEN64__
2106     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2107     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2108     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2109     speed_cflags='-O2'
2110     size_cflags='-Os'
2111 fi
2112
2113 test -n "$cc_type" && enable $cc_type ||
2114     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2115
2116 : ${as_default:=$cc}
2117 : ${dep_cc_default:=$cc}
2118 : ${ld_default:=$cc}
2119 set_default ar as dep_cc ld
2120
2121 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2122 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2123
2124 add_cflags $extra_cflags
2125 add_asflags $extra_cflags
2126
2127 if test -n "$sysroot"; then
2128     case "$cc_type" in
2129         gcc|llvm_gcc|clang)
2130             add_cppflags --sysroot="$sysroot"
2131             add_ldflags --sysroot="$sysroot"
2132         ;;
2133         tms470)
2134             add_cppflags -I"$sysinclude"
2135             add_ldflags  --sysroot="$sysroot"
2136         ;;
2137     esac
2138 fi
2139
2140 if test "$cpu" = host; then
2141     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2142
2143     case "$cc_type" in
2144         gcc|llvm_gcc)
2145             check_native(){
2146                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2147                 sed -n "/$1=/{
2148                             s/.*$1=\\([^ ]*\\).*/\\1/
2149                             p
2150                             q
2151                         }" $TMPE
2152             }
2153             cpu=$(check_native -march || check_native -mcpu)
2154         ;;
2155     esac
2156
2157     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2158 fi
2159
2160 # Deal with common $arch aliases
2161 case "$arch" in
2162     arm*)
2163         arch="arm"
2164     ;;
2165     mips|mipsel|IP*)
2166         arch="mips"
2167     ;;
2168     mips64*)
2169         arch="mips"
2170         subarch="mips64"
2171     ;;
2172     parisc|hppa)
2173         arch="parisc"
2174     ;;
2175     parisc64|hppa64)
2176         arch="parisc"
2177         subarch="parisc64"
2178     ;;
2179     "Power Macintosh"|ppc|powerpc)
2180         arch="ppc"
2181     ;;
2182     ppc64|powerpc64)
2183         arch="ppc"
2184         subarch="ppc64"
2185     ;;
2186     s390|s390x)
2187         arch="s390"
2188     ;;
2189     sh4|sh)
2190         arch="sh4"
2191     ;;
2192     sun4u|sparc64)
2193         arch="sparc"
2194         subarch="sparc64"
2195     ;;
2196     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2197         arch="x86"
2198     ;;
2199 esac
2200
2201 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2202 enable $arch
2203
2204 # Add processor-specific flags
2205 if test "$cpu" = generic; then
2206     : do nothing
2207 elif enabled ppc; then
2208
2209     case $(tolower $cpu) in
2210         601|ppc601|powerpc601)
2211             cpuflags="-mcpu=601"
2212             disable altivec
2213         ;;
2214         603*|ppc603*|powerpc603*)
2215             cpuflags="-mcpu=603"
2216             disable altivec
2217         ;;
2218         604*|ppc604*|powerpc604*)
2219             cpuflags="-mcpu=604"
2220             disable altivec
2221         ;;
2222         g3|75*|ppc75*|powerpc75*)
2223             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2224             disable altivec
2225         ;;
2226         g4|745*|ppc745*|powerpc745*)
2227             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2228         ;;
2229         74*|ppc74*|powerpc74*)
2230             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2231         ;;
2232         g5|970|ppc970|powerpc970|power4*)
2233             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2234         ;;
2235         cell)
2236             cpuflags="-mcpu=cell"
2237             enable ldbrx
2238         ;;
2239         e500v2)
2240             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2241             disable altivec
2242         ;;
2243         e500)
2244             cpuflags="-mcpu=8540 -mhard-float"
2245             disable altivec
2246         ;;
2247     esac
2248
2249 elif enabled x86; then
2250
2251     case $cpu in
2252         i[345]86|pentium)
2253             cpuflags="-march=$cpu"
2254             disable mmx
2255         ;;
2256         # targets that do NOT support conditional mov (cmov)
2257         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2258             cpuflags="-march=$cpu"
2259             disable cmov
2260         ;;
2261         # targets that do support conditional mov (cmov)
2262         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2263             cpuflags="-march=$cpu"
2264             enable cmov
2265             enable fast_cmov
2266         ;;
2267         # targets that do support conditional mov but on which it's slow
2268         pentium4|pentium4m|prescott|nocona)
2269             cpuflags="-march=$cpu"
2270             enable cmov
2271             disable fast_cmov
2272         ;;
2273     esac
2274
2275 elif enabled sparc; then
2276
2277     case $cpu in
2278         niagara)
2279             cpuflags="-mcpu=$cpu"
2280             disable vis
2281         ;;
2282         sparc64)
2283             cpuflags="-mcpu=v9"
2284         ;;
2285     esac
2286
2287 elif enabled arm; then
2288
2289     case $cpu in
2290         armv*)
2291             cpuflags="-march=$cpu"
2292             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2293         ;;
2294         *)
2295             cpuflags="-mcpu=$cpu"
2296             case $cpu in
2297                 cortex-a*)                               subarch=armv7a  ;;
2298                 cortex-r*)                               subarch=armv7r  ;;
2299                 cortex-m*)                               subarch=armv7m  ;;
2300                 arm11*)                                  subarch=armv6   ;;
2301                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2302                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2303             esac
2304         ;;
2305     esac
2306
2307 elif enabled alpha; then
2308
2309     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2310
2311 elif enabled bfin; then
2312
2313     cpuflags="-mcpu=$cpu"
2314
2315 elif enabled mips; then
2316
2317     cpuflags="-march=$cpu"
2318
2319 elif enabled avr32; then
2320
2321     case $cpu in
2322         ap7[02]0[0-2])
2323             subarch="avr32_ap"
2324             cpuflags="-mpart=$cpu"
2325         ;;
2326         ap)
2327             subarch="avr32_ap"
2328             cpuflags="-march=$cpu"
2329         ;;
2330         uc3[ab]*)
2331             subarch="avr32_uc"
2332             cpuflags="-mcpu=$cpu"
2333         ;;
2334         uc)
2335             subarch="avr32_uc"
2336             cpuflags="-march=$cpu"
2337         ;;
2338     esac
2339
2340 fi
2341
2342 add_cflags $cpuflags
2343 add_asflags $cpuflags
2344
2345 # compiler sanity check
2346 check_exec <<EOF
2347 int main(void){ return 0; }
2348 EOF
2349 if test "$?" != 0; then
2350     echo "$cc is unable to create an executable file."
2351     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2352         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2353         echo "Only do this if you know what cross compiling means."
2354     fi
2355     die "C compiler test failed."
2356 fi
2357
2358 add_cppflags -D_ISOC99_SOURCE
2359 check_cflags -std=c99
2360 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2361 #include <stdlib.h>
2362 EOF
2363 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2364 #include <stdlib.h>
2365 EOF
2366
2367 check_host_cflags -std=c99
2368 check_host_cflags -Wall
2369
2370 case "$arch" in
2371     alpha|ia64|mips|parisc|sparc)
2372         spic=$shared
2373     ;;
2374     x86)
2375         subarch="x86_32"
2376         check_cc <<EOF && subarch="x86_64"
2377         int test[(int)sizeof(char*) - 7];
2378 EOF
2379         if test "$subarch" = "x86_64"; then
2380             spic=$shared
2381         fi
2382     ;;
2383 esac
2384
2385 enable $subarch
2386 enabled spic && enable pic
2387
2388 # OS specific
2389 case $target_os in
2390     haiku)
2391         prefix_default="/boot/common"
2392         network_extralibs="-lnetwork"
2393         host_libs=
2394         ;;
2395     sunos)
2396         FFSERVERLDFLAGS=""
2397         SHFLAGS='-shared -Wl,-h,$$(@F)'
2398         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2399         network_extralibs="-lsocket -lnsl"
2400         add_cppflags -D__EXTENSIONS__
2401         nm_opts='-P -g'
2402         ;;
2403     netbsd)
2404         disable symver
2405         oss_indev_extralibs="-lossaudio"
2406         oss_outdev_extralibs="-lossaudio"
2407         ;;
2408     openbsd)
2409         enable malloc_aligned
2410         # On OpenBSD 4.5. the compiler does not use PIC unless
2411         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2412         # however the generated executable will not do anything
2413         # (simply quits with exit-code 1, no crash, no output).
2414         # Thus explicitly enable PIC here.
2415         enable pic
2416         disable symver
2417         SHFLAGS='-shared'
2418         oss_indev_extralibs="-lossaudio"
2419         oss_outdev_extralibs="-lossaudio"
2420         ;;
2421     dragonfly)
2422         enable malloc_aligned
2423         disable symver
2424         ;;
2425     freebsd)
2426         enable malloc_aligned
2427         ;;
2428     bsd/os)
2429         add_extralibs -lpoll -lgnugetopt
2430         strip="strip -d"
2431         ;;
2432     darwin)
2433         enable malloc_aligned
2434         gas="gas-preprocessor.pl $cc"
2435         enabled ppc && add_asflags -force_cpusubtype_ALL
2436         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2437         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2438         strip="${strip} -x"
2439         add_ldflags -Wl,-dynamic,-search_paths_first
2440         SLIBSUF=".dylib"
2441         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2442         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2443         FFSERVERLDFLAGS=-Wl,-bind_at_load
2444         objformat="macho"
2445         enabled x86_64 && objformat="macho64"
2446         enabled_any pic shared ||
2447             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2448         ;;
2449     mingw32*)
2450         if test $target_os = "mingw32ce"; then
2451             disable network
2452         else
2453             target_os=mingw32
2454         fi
2455         LIBTARGET=i386
2456         if enabled x86_64; then
2457             enable malloc_aligned
2458             LIBTARGET=x64
2459         elif enabled arm; then
2460             LIBTARGET=arm-wince
2461         fi
2462         shlibdir_default="$bindir_default"
2463         SLIBPREF=""
2464         SLIBSUF=".dll"
2465         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2466         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2467         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2468         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2469             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2470             install -d "$(LIBDIR)"; \
2471             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2472         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2473         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'
2474         objformat="win32"
2475         enable dos_paths
2476         check_cflags -fno-common
2477         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2478                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2479                 die "ERROR: MinGW runtime version must be >= 3.15."
2480         add_cppflags -U__STRICT_ANSI__
2481         ;;
2482     cygwin*)
2483         target_os=cygwin
2484         shlibdir_default="$bindir_default"
2485         SLIBPREF="cyg"
2486         SLIBSUF=".dll"
2487         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2488         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2489         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2490         objformat="win32"
2491         enable dos_paths
2492         check_cflags -fno-common
2493         add_cppflags -U__STRICT_ANSI__
2494         ;;
2495     *-dos|freedos|opendos)
2496         network_extralibs="-lsocket"
2497         objformat="coff"
2498         enable dos_paths
2499         add_cppflags -U__STRICT_ANSI__
2500         ;;
2501     linux)
2502         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2503         enable dv1394
2504         ;;
2505     irix*)
2506         target_os=irix
2507         ranlib="echo ignoring ranlib"
2508         ;;
2509     os/2*)
2510         strip="lxlite -CS"
2511         ln_s="cp -f"
2512         objformat="aout"
2513         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2514         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2515         FFSERVERLDFLAGS=""
2516         LIBSUF="_s.a"
2517         SLIBPREF=""
2518         SLIBSUF=".dll"
2519         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2520         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2521         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2522           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2523           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2524           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2525           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2526           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2527         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2528           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2529         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2530         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2531         enable dos_paths
2532         ;;
2533     gnu/kfreebsd)
2534         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2535         ;;
2536     gnu)
2537         ;;
2538     qnx)
2539         add_cppflags -D_QNX_SOURCE
2540         network_extralibs="-lsocket"
2541         ;;
2542     symbian)
2543         SLIBSUF=".dll"
2544         enable dos_paths
2545         add_cflags --include=$sysinclude/gcce/gcce.h
2546         ;;
2547     none)
2548         ;;
2549     *)
2550         die "Unknown OS '$target_os'."
2551         ;;
2552 esac
2553
2554 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2555
2556 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2557
2558 set_default $PATHS_LIST
2559
2560 # we need to build at least one lib type
2561 if ! enabled_any static shared; then
2562     cat <<EOF
2563 At least one library type must be built.
2564 Specify --enable-static to build the static libraries or --enable-shared to
2565 build the shared libraries as well. To only build the shared libraries specify
2566 --disable-static in addition to --enable-shared.
2567 EOF
2568     exit 1;
2569 fi
2570
2571 disabled static && LIBNAME=""
2572
2573 die_license_disabled() {
2574     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2575 }
2576
2577 die_license_disabled gpl libx264
2578 die_license_disabled gpl libxavs
2579 die_license_disabled gpl libxvid
2580 die_license_disabled gpl x11grab
2581
2582 die_license_disabled nonfree libfaac
2583
2584 die_license_disabled version3 libopencore_amrnb
2585 die_license_disabled version3 libopencore_amrwb
2586 die_license_disabled version3 libvo_aacenc
2587 die_license_disabled version3 libvo_amrwbenc
2588
2589 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2590
2591 disabled optimizations || check_cflags -fomit-frame-pointer
2592
2593 enable_pic() {
2594     enable pic
2595     add_cppflags -DPIC
2596     add_cflags   -fPIC
2597     add_asflags  -fPIC
2598 }
2599
2600 enabled pic && enable_pic
2601
2602 check_cc <<EOF || die "Symbol mangling check failed."
2603 int ff_extern;
2604 EOF
2605 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2606 extern_prefix=${sym%%ff_extern*}
2607
2608 check_cc <<EOF && enable inline_asm
2609 void foo(void) { __asm__ volatile ("" ::); }
2610 EOF
2611
2612 _restrict=
2613 for restrict_keyword in restrict __restrict__ __restrict; do
2614     check_cc <<EOF && _restrict=$restrict_keyword && break
2615 void foo(char * $restrict_keyword p);
2616 EOF
2617 done
2618
2619 check_cc <<EOF && enable attribute_packed
2620 struct { int x; } __attribute__((packed)) x;
2621 EOF
2622
2623 check_cc <<EOF && enable attribute_may_alias
2624 union { int x; } __attribute__((may_alias)) x;
2625 EOF
2626
2627 check_cc <<EOF || die "endian test failed"
2628 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2629 EOF
2630 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2631
2632 if enabled alpha; then
2633
2634     check_cflags -mieee
2635
2636 elif enabled arm; then
2637
2638     check_cflags -marm
2639     nogas=die
2640
2641     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2642         enable vfp_args
2643     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2644         case "${cross_prefix:-$cc}" in
2645             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2646             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2647 __asm__ (".eabi_attribute 28, 1");
2648 int main(void) { return 0; }
2649 EOF
2650         esac
2651         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2652     fi
2653
2654     # We have to check if pld is a nop and disable it.
2655     check_asm pld '"pld [r0]"'
2656
2657     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2658     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2659     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2660     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2661     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2662     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2663
2664     enabled_all armv6t2 shared !pic && enable_pic
2665
2666 elif enabled mips; then
2667
2668     check_asm loongson '"dmult.g $1, $2, $3"'
2669     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2670
2671 elif enabled ppc; then
2672
2673     enable local_aligned_8 local_aligned_16
2674
2675     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2676     check_asm ibm_asm   '"add 0, 0, 0"'
2677     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2678     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2679
2680     # AltiVec flags: The FSF version of GCC differs from the Apple version
2681     if enabled altivec; then
2682         nogas=warn
2683         check_cflags -maltivec -mabi=altivec &&
2684         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2685         check_cflags -faltivec
2686
2687         # check if our compiler supports Motorola AltiVec C API
2688         check_cc <<EOF || disable altivec
2689 $inc_altivec_h
2690 int main(void) {
2691     vector signed int v1, v2, v3;
2692     v1 = vec_add(v2,v3);
2693     return 0;
2694 }
2695 EOF
2696
2697         # check if our compiler supports braces for vector declarations
2698         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2699 $inc_altivec_h
2700 int main (void) { (vector int) {1}; return 0; }
2701 EOF
2702     fi
2703
2704 elif enabled sparc; then
2705
2706     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2707         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2708
2709 elif enabled x86; then
2710
2711     enable local_aligned_8 local_aligned_16
2712
2713     # check whether EBP is available on x86
2714     # As 'i' is stored on the stack, this program will crash
2715     # if the base pointer is used to access it because the
2716     # base pointer is cleared in the inline assembly code.
2717     check_exec_crash <<EOF && enable ebp_available
2718     volatile int i=0;
2719     __asm__ volatile (
2720         "xorl %%ebp, %%ebp"
2721     ::: "%ebp");
2722     return i;
2723 EOF
2724
2725     # check whether EBX is available on x86
2726     check_asm ebx_available '""::"b"(0)' &&
2727         check_asm ebx_available '"":::"%ebx"'
2728
2729     # check whether xmm clobbers are supported
2730     check_asm xmm_clobbers '"":::"%xmm0"'
2731
2732     # check whether more than 10 operands are supported
2733     check_cc <<EOF && enable ten_operands
2734 int main(void) {
2735     int x=0;
2736     __asm__ volatile(
2737         ""
2738         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2739     );
2740     return 0;
2741 }
2742 EOF
2743
2744     # check whether binutils is new enough to compile SSSE3/MMX2
2745     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2746     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2747
2748     check_asm bswap '"bswap %%eax" ::: "%eax"'
2749
2750     if ! disabled_any asm mmx yasm; then
2751         if check_cmd $yasmexe --version; then
2752             enabled x86_64 && yasm_extra="-m amd64"
2753             yasm_debug="-g dwarf2"
2754         elif check_cmd nasm -v; then
2755             yasmexe=nasm
2756             yasm_debug="-g -F dwarf"
2757             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2758         fi
2759
2760         YASMFLAGS="-f $objformat $yasm_extra"
2761         enabled pic               && append YASMFLAGS "-DPIC"
2762         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2763         case "$objformat" in
2764             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2765         esac
2766
2767         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2768             die "yasm not found, use --disable-yasm for a crippled build"
2769         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2770     fi
2771
2772     case "$cpu" in
2773         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2774             disable fast_clz
2775         ;;
2776     esac
2777
2778 fi
2779
2780 if enabled asm; then
2781     as=${gas:=$as}
2782     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2783         $nogas "GNU assembler not found, install gas-preprocessor"
2784 fi
2785
2786 check_ldflags -Wl,--as-needed
2787
2788 if check_func dlopen; then
2789     ldl=
2790 elif check_func dlopen -ldl; then
2791     ldl=-ldl
2792 fi
2793
2794 if enabled network; then
2795     check_type "sys/types.h sys/socket.h" socklen_t
2796     check_type netdb.h "struct addrinfo"
2797     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2798     check_type netinet/in.h "struct sockaddr_in6"
2799     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2800     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2801     # Prefer arpa/inet.h over winsock2
2802     if check_header arpa/inet.h ; then
2803         check_func closesocket
2804     elif check_header winsock2.h ; then
2805         check_func_headers winsock2.h closesocket -lws2 && \
2806             network_extralibs="-lws2" || \
2807         { check_func_headers winsock2.h closesocket -lws2_32 && \
2808             network_extralibs="-lws2_32"; }
2809         check_type ws2tcpip.h socklen_t
2810         check_type ws2tcpip.h "struct addrinfo"
2811         check_type ws2tcpip.h "struct ipv6_mreq"
2812         check_type ws2tcpip.h "struct sockaddr_in6"
2813         check_type ws2tcpip.h "struct sockaddr_storage"
2814         check_struct winsock2.h "struct sockaddr" sa_len
2815     else
2816         disable network
2817     fi
2818 fi
2819
2820 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2821 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2822
2823 check_func  fcntl
2824 check_func  fork
2825 check_func  getaddrinfo $network_extralibs
2826 check_func  gethrtime
2827 check_func  getrusage
2828 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2829 check_func  inet_aton $network_extralibs
2830 check_func  isatty
2831 check_func  localtime_r
2832 check_func  ${malloc_prefix}memalign            && enable memalign
2833 check_func  mkstemp
2834 check_func  mmap
2835 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2836 check_func  setrlimit
2837 check_func  strerror_r
2838 check_func  strtok_r
2839 check_func_headers conio.h kbhit
2840 check_func_headers io.h setmode
2841 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2842 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2843 check_func_headers windows.h GetProcessTimes
2844 check_func_headers windows.h MapViewOfFile
2845 check_func_headers windows.h VirtualAlloc
2846
2847 check_header dlfcn.h
2848 check_header dxva2api.h
2849 check_header libcrystalhd/libcrystalhd_if.h
2850 check_header malloc.h
2851 check_header poll.h
2852 check_header sys/mman.h
2853 check_header sys/resource.h
2854 check_header sys/select.h
2855 check_header termios.h
2856 check_header vdpau/vdpau.h
2857 check_header vdpau/vdpau_x11.h
2858 check_header X11/extensions/XvMClib.h
2859
2860 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2861
2862 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2863      enabled_any $need_memalign ; then
2864     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2865 fi
2866
2867 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2868 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2869
2870 # check for some common methods of building with pthread support
2871 # do this before the optional library checks as some of them require pthreads
2872 if ! disabled pthreads && ! enabled w32threads; then
2873     enable pthreads
2874     if check_func pthread_create; then
2875         :
2876     elif check_func pthread_create -pthread; then
2877         add_cflags -pthread
2878         add_extralibs -pthread
2879     elif check_func pthread_create -pthreads; then
2880         add_cflags -pthreads
2881         add_extralibs -pthreads
2882     elif check_func pthread_create -lpthreadGC2; then
2883         add_extralibs -lpthreadGC2
2884     elif ! check_lib pthread.h pthread_create -lpthread; then
2885         disable pthreads
2886     fi
2887 fi
2888
2889 for thread in $THREADS_LIST; do
2890     if enabled $thread; then
2891         test -n "$thread_type" &&
2892             die "ERROR: Only one thread type must be selected." ||
2893             thread_type="$thread"
2894     fi
2895 done
2896
2897 check_lib math.h sin -lm && LIBM="-lm"
2898 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2899 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2900
2901 check_mathfunc exp2
2902 check_mathfunc exp2f
2903 check_mathfunc llrint
2904 check_mathfunc llrintf
2905 check_mathfunc log2
2906 check_mathfunc log2f
2907 check_mathfunc lrint
2908 check_mathfunc lrintf
2909 check_mathfunc round
2910 check_mathfunc roundf
2911 check_mathfunc trunc
2912 check_mathfunc truncf
2913
2914 # these are off by default, so fail if requested and not available
2915 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2916 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2917 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
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 # libdc1394 check
2950 if enabled libdc1394; then
2951     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2952         enable libdc1394_2; } ||
2953     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2954         enable libdc1394_1; } ||
2955     die "ERROR: No version of libdc1394 found "
2956 fi
2957
2958 SDL_CONFIG="${cross_prefix}sdl-config"
2959 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2960     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2961     enable sdl &&
2962     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2963 else
2964   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2965     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2966     sdl_libs=$("${SDL_CONFIG}" --libs)
2967     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2968     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2969     enable sdl &&
2970     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2971   fi
2972 fi
2973
2974 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2975
2976 check_header linux/fb.h
2977 check_header linux/videodev.h
2978 check_header linux/videodev2.h
2979 check_header sys/videoio.h
2980
2981 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2982 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2983 # w32api 3.12 had it defined wrong
2984 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2985
2986 check_type "dshow.h" IBaseFilter
2987
2988 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2989 { check_header dev/bktr/ioctl_meteor.h &&
2990   check_header dev/bktr/ioctl_bt848.h; } ||
2991 { check_header machine/ioctl_meteor.h &&
2992   check_header machine/ioctl_bt848.h; } ||
2993 { check_header dev/video/meteor/ioctl_meteor.h &&
2994   check_header dev/video/bktr/ioctl_bt848.h; } ||
2995 check_header dev/ic/bt8xx.h
2996
2997 check_header sndio.h
2998 if check_struct sys/soundcard.h audio_buf_info bytes; then
2999     enable_safe sys/soundcard.h
3000 else
3001     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3002     #include <sys/soundcard.h>
3003     audio_buf_info abc;
3004 EOF
3005 fi
3006 check_header soundcard.h
3007
3008 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3009
3010 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3011
3012 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3013
3014 enabled x11grab                         &&
3015 check_header X11/Xlib.h                 &&
3016 check_header X11/extensions/XShm.h      &&
3017 check_header X11/extensions/Xfixes.h    &&
3018 check_func XOpenDisplay -lX11           &&
3019 check_func XShmCreateImage -lX11 -lXext &&
3020 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3021
3022 if ! disabled vaapi; then
3023     check_lib va/va.h vaInitialize -lva && {
3024         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3025         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3026     } || disable vaapi
3027 fi
3028
3029 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3030 check_cpp_condition \
3031     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3032     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3033       disable vdpau; }
3034 fi
3035
3036 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3037
3038 # add some useful compiler flags if supported
3039 check_cflags -Wdeclaration-after-statement
3040 check_cflags -Wall
3041 check_cflags -Wno-parentheses
3042 check_cflags -Wno-switch
3043 check_cflags -Wdisabled-optimization
3044 check_cflags -Wpointer-arith
3045 check_cflags -Wredundant-decls
3046 check_cflags -Wno-pointer-sign
3047 check_cflags -Wcast-qual
3048 check_cflags -Wwrite-strings
3049 check_cflags -Wtype-limits
3050 check_cflags -Wundef
3051 check_cflags -Wmissing-prototypes
3052 check_cflags -Wno-pointer-to-int-cast
3053 enabled extra_warnings && check_cflags -Winline
3054
3055 # add some linker flags
3056 check_ldflags -Wl,--warn-common
3057 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
3058 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3059
3060 echo "X{};" > $TMPV
3061 if test_ldflags -Wl,--version-script,$TMPV; then
3062     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3063     check_cc <<EOF && enable symver_asm_label
3064 void ff_foo(void) __asm__ ("av_foo@VERSION");
3065 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3066 EOF
3067     check_cc <<EOF && enable symver_gnu_asm
3068 __asm__(".symver ff_foo,av_foo@VERSION");
3069 void ff_foo(void) {}
3070 EOF
3071 fi
3072
3073 if enabled small; then
3074     add_cflags $size_cflags
3075     optimizations="small"
3076 elif enabled optimizations; then
3077     add_cflags $speed_cflags
3078 else
3079     add_cflags $noopt_cflags
3080 fi
3081 check_cflags -fno-math-errno
3082 check_cflags -fno-signed-zeros
3083
3084 if enabled icc; then
3085     # Just warnings, no remarks
3086     check_cflags -w1
3087     # -wd: Disable following warnings
3088     # 144, 167, 556: -Wno-pointer-sign
3089     # 1292: attribute "foo" ignored
3090     # 10006: ignoring unknown option -fno-signed-zeros
3091     # 10148: ignoring unknown option -Wno-parentheses
3092     # 10156: ignoring option '-W'; no argument required
3093     check_cflags -wd144,167,556,1292,10006,10148,10156
3094     # 11030: Warning unknown option --as-needed
3095     # 10156: ignoring option '-export'; no argument required
3096     check_ldflags -wd10156,11030
3097     # Allow to compile with optimizations
3098     check_ldflags -march=$cpu
3099     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3100     enable ebp_available
3101     if enabled x86_32; then
3102         test ${icc_version%%.*} -ge 11 && \
3103             check_cflags -falign-stack=maintain-16-byte || \
3104             disable aligned_stack
3105     fi
3106 elif enabled ccc; then
3107     # disable some annoying warnings
3108     add_cflags -msg_disable cvtu32to64
3109     add_cflags -msg_disable embedcomment
3110     add_cflags -msg_disable needconstext
3111     add_cflags -msg_disable nomainieee
3112     add_cflags -msg_disable ptrmismatch1
3113     add_cflags -msg_disable unreachcode
3114 elif enabled gcc; then
3115     check_cflags -fno-tree-vectorize
3116     check_cflags -Werror=implicit-function-declaration
3117     check_cflags -Werror=missing-prototypes
3118 elif enabled llvm_gcc; then
3119     check_cflags -mllvm -stack-alignment=16
3120 elif enabled clang; then
3121     check_cflags -mllvm -stack-alignment=16
3122     check_cflags -Qunused-arguments
3123 elif enabled armcc; then
3124     # 2523: use of inline assembler is deprecated
3125     add_cflags -W${armcc_opt},--diag_suppress=2523
3126     add_cflags -W${armcc_opt},--diag_suppress=1207
3127     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3128     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3129 elif enabled tms470; then
3130     add_cflags -pds=824 -pds=837
3131 elif enabled pathscale; then
3132     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3133 fi
3134
3135 enabled_any $THREADS_LIST      && enable threads
3136
3137 check_deps $CONFIG_LIST       \
3138            $CONFIG_EXTRA      \
3139            $HAVE_LIST         \
3140            $DECODER_LIST      \
3141            $ENCODER_LIST      \
3142            $HWACCEL_LIST      \
3143            $PARSER_LIST       \
3144            $BSF_LIST          \
3145            $DEMUXER_LIST      \
3146            $MUXER_LIST        \
3147            $FILTER_LIST       \
3148            $INDEV_LIST        \
3149            $OUTDEV_LIST       \
3150            $PROTOCOL_LIST     \
3151            $ACODEC_TESTS      \
3152            $VCODEC_TESTS      \
3153            $LAVF_TESTS        \
3154            $LAVFI_TESTS       \
3155            $SEEK_TESTS        \
3156
3157 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3158
3159 echo "install prefix            $prefix"
3160 echo "source path               $source_path"
3161 echo "C compiler                $cc"
3162 echo "ARCH                      $arch ($cpu)"
3163 if test "$build_suffix" != ""; then
3164     echo "build suffix              $build_suffix"
3165 fi
3166 if test "$extra_version" != ""; then
3167     echo "version string suffix     $extra_version"
3168 fi
3169 echo "big-endian                ${bigendian-no}"
3170 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3171 if enabled x86; then
3172     echo "yasm                      ${yasm-no}"
3173     echo "MMX enabled               ${mmx-no}"
3174     echo "MMX2 enabled              ${mmx2-no}"
3175     echo "3DNow! enabled            ${amd3dnow-no}"
3176     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3177     echo "SSE enabled               ${sse-no}"
3178     echo "SSSE3 enabled             ${ssse3-no}"
3179     echo "AVX enabled               ${avx-no}"
3180     echo "CMOV enabled              ${cmov-no}"
3181     echo "CMOV is fast              ${fast_cmov-no}"
3182     echo "EBX available             ${ebx_available-no}"
3183     echo "EBP available             ${ebp_available-no}"
3184     echo "10 operands supported     ${ten_operands-no}"
3185 fi
3186 if enabled arm; then
3187     echo "ARMv5TE enabled           ${armv5te-no}"
3188     echo "ARMv6 enabled             ${armv6-no}"
3189     echo "ARMv6T2 enabled           ${armv6t2-no}"
3190     echo "ARM VFP enabled           ${armvfp-no}"
3191     echo "IWMMXT enabled            ${iwmmxt-no}"
3192     echo "NEON enabled              ${neon-no}"
3193 fi
3194 if enabled mips; then
3195     echo "MMI enabled               ${mmi-no}"
3196 fi
3197 if enabled ppc; then
3198     echo "AltiVec enabled           ${altivec-no}"
3199     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3200     echo "dcbzl available           ${dcbzl-no}"
3201 fi
3202 if enabled sparc; then
3203     echo "VIS enabled               ${vis-no}"
3204 fi
3205 echo "debug symbols             ${debug-no}"
3206 echo "strip symbols             ${stripping-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 BUILD_ROOT="$PWD"
3325 CC_IDENT=$cc_ident
3326 ARCH=$arch
3327 CC=$cc
3328 AS=$as
3329 LD=$ld
3330 DEPCC=$dep_cc
3331 YASM=$yasmexe
3332 YASMDEP=$yasmexe
3333 AR=$ar
3334 RANLIB=$ranlib
3335 CP=cp -p
3336 LN_S=$ln_s
3337 STRIP=$strip
3338 CPPFLAGS=$CPPFLAGS
3339 CFLAGS=$CFLAGS
3340 ASFLAGS=$ASFLAGS
3341 CC_O=$CC_O
3342 LDFLAGS=$LDFLAGS
3343 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3344 SHFLAGS=$SHFLAGS
3345 YASMFLAGS=$YASMFLAGS
3346 BUILDSUF=$build_suffix
3347 FULLNAME=$FULLNAME
3348 LIBPREF=$LIBPREF
3349 LIBSUF=$LIBSUF
3350 LIBNAME=$LIBNAME
3351 SLIBPREF=$SLIBPREF
3352 SLIBSUF=$SLIBSUF
3353 EXESUF=$EXESUF
3354 EXTRA_VERSION=$extra_version
3355 DEPFLAGS=$DEPFLAGS
3356 CCDEP=$CCDEP
3357 ASDEP=$ASDEP
3358 CC_DEPFLAGS=$CC_DEPFLAGS
3359 AS_DEPFLAGS=$AS_DEPFLAGS
3360 HOSTCC=$host_cc
3361 HOSTCFLAGS=$host_cflags
3362 HOSTEXESUF=$HOSTEXESUF
3363 HOSTLDFLAGS=$host_ldflags
3364 HOSTLIBS=$host_libs
3365 TARGET_EXEC=$target_exec
3366 TARGET_PATH=$target_path
3367 SDL_LIBS=$sdl_libs
3368 SDL_CFLAGS=$sdl_cflags
3369 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3370 EXTRALIBS=$extralibs
3371 INSTALL=$install
3372 LIBTARGET=${LIBTARGET}
3373 SLIBNAME=${SLIBNAME}
3374 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3375 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3376 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3377 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3378 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3379 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3380 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3381 EOF
3382
3383 get_version(){
3384     name=$1
3385     file=$source_path/$2
3386     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3387     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3388     lcname=$(tolower $name)
3389     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3390     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3391 }
3392
3393 get_version LIBSWSCALE  libswscale/swscale.h
3394 get_version LIBPOSTPROC libpostproc/postprocess.h
3395 get_version LIBAVCODEC  libavcodec/version.h
3396 get_version LIBAVDEVICE libavdevice/avdevice.h
3397 get_version LIBAVFORMAT libavformat/version.h
3398 get_version LIBAVUTIL   libavutil/avutil.h
3399 get_version LIBAVFILTER libavfilter/avfilter.h
3400
3401 cat > $TMPH <<EOF
3402 /* Automatically generated by configure - do not modify! */
3403 #ifndef FFMPEG_CONFIG_H
3404 #define FFMPEG_CONFIG_H
3405 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3406 #define FFMPEG_LICENSE "$(c_escape $license)"
3407 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3408 #define CC_TYPE "$cc_type"
3409 #define CC_VERSION $cc_version
3410 #define restrict $_restrict
3411 #define EXTERN_PREFIX "${extern_prefix}"
3412 #define EXTERN_ASM ${extern_prefix}
3413 #define SLIBSUF "$SLIBSUF"
3414 EOF
3415
3416 test -n "$malloc_prefix" &&
3417     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3418
3419 if enabled small || disabled optimizations; then
3420     echo "#undef  av_always_inline"  >> $TMPH
3421     if enabled small; then
3422         echo "#define av_always_inline inline"  >> $TMPH
3423     else
3424         echo "#define av_always_inline av_unused"  >> $TMPH
3425     fi
3426 fi
3427
3428 if enabled yasm; then
3429     append config_files $TMPASM
3430     printf '' >$TMPASM
3431 fi
3432
3433 print_config ARCH_   "$config_files" $ARCH_LIST
3434 print_config HAVE_   "$config_files" $HAVE_LIST
3435 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3436                                      $CONFIG_EXTRA      \
3437                                      $DECODER_LIST      \
3438                                      $ENCODER_LIST      \
3439                                      $HWACCEL_LIST      \
3440                                      $PARSER_LIST       \
3441                                      $BSF_LIST          \
3442                                      $DEMUXER_LIST      \
3443                                      $MUXER_LIST        \
3444                                      $FILTER_LIST       \
3445                                      $PROTOCOL_LIST     \
3446                                      $INDEV_LIST        \
3447                                      $OUTDEV_LIST       \
3448
3449 cat >>config.mak <<EOF
3450 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3451 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3452 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3453 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3454 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3455 EOF
3456
3457 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3458 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3459
3460 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3461 cp_if_changed $TMPH config.h
3462 touch .config
3463
3464 enabled yasm && cp_if_changed $TMPASM config.asm
3465
3466 cat > $TMPH <<EOF
3467 /* Generated by ffconf */
3468 #ifndef AVUTIL_AVCONFIG_H
3469 #define AVUTIL_AVCONFIG_H
3470 EOF
3471
3472 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3473
3474 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3475
3476 cp_if_changed $TMPH libavutil/avconfig.h
3477
3478 test -n "$WARNINGS" && printf "\n$WARNINGS"
3479
3480 # build pkg-config files
3481
3482 pkgconfig_generate(){
3483 name=$1
3484 shortname=${name#lib}${build_suffix}
3485 comment=$2
3486 version=$3
3487 libs=$4
3488 requires=$5
3489 enabled ${name#lib} || return 0
3490 cat <<EOF > $name/$name.pc
3491 prefix=$prefix
3492 exec_prefix=\${prefix}
3493 libdir=$libdir
3494 includedir=$incdir
3495
3496 Name: $name
3497 Description: $comment
3498 Version: $version
3499 Requires: $(enabled shared || echo $requires)
3500 Requires.private: $(enabled shared && echo $requires)
3501 Conflicts:
3502 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3503 Libs.private: $(enabled shared && echo $libs)
3504 Cflags: -I\${includedir}
3505 EOF
3506 cat <<EOF > $name/$name-uninstalled.pc
3507 prefix=
3508 exec_prefix=
3509 libdir=\${pcfiledir}
3510 includedir=${source_path}
3511
3512 Name: $name
3513 Description: $comment
3514 Version: $version
3515 Requires: $requires
3516 Conflicts:
3517 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3518 Cflags: -I\${includedir}
3519 EOF
3520 }
3521
3522 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3523 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3524 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3525 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3526 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3527 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3528 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"