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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-avconv         disable avconv build
  85   --disable-ffplay         disable ffplay build
  86   --disable-ffprobe        disable ffprobe build
  87   --disable-ffserver       disable ffserver build
  88   --disable-avdevice       disable libavdevice build
  89   --disable-avcodec        disable libavcodec build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --disable-postproc       disable libpostproc build
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --enable-vaapi           enable VAAPI code [autodetect]
 111   --enable-vdpau           enable VDPAU code [autodetect]
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 176   --enable-libnut          enable NUT (de)muxing via libnut,
 177                            native (de)muxer exists [no]
 178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 181   --enable-libspeex        enable Speex decoding via libspeex [no]
 182   --enable-libtheora       enable Theora encoding via libtheora [no]
 183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 186                            native implementation exists [no]
 187   --enable-libvpx          enable VP8 support via libvpx [no]
 188   --enable-libx264         enable H.264 encoding via x264 [no]
 189   --enable-libxavs         enable AVS encoding via xavs [no]
 190   --enable-libxvid         enable Xvid encoding via xvidcore,
 191                            native MPEG-4/Xvid encoder exists [no]
 192   --enable-openal          enable OpenAL 1.1 capture support [no]
 193   --enable-mlib            enable Sun medialib [no]
 194   --enable-zlib            enable zlib [autodetect]
 195
 196 Advanced options (experts only):
 197   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 198   --enable-cross-compile   assume a cross-compiler is used
 199   --sysroot=PATH           root of cross-build tree
 200   --sysinclude=PATH        location of cross-build system headers
 201   --target-os=OS           compiler targets OS [$target_os]
 202   --target-exec=CMD        command to run executables on target
 203   --target-path=DIR        path to view of build directory on target
 204   --nm=NM                  use nm tool
 205   --ar=AR                  use archive tool AR [$ar_default]
 206   --as=AS                  use assembler AS [$as_default]
 207   --cc=CC                  use C compiler CC [$cc_default]
 208   --ld=LD                  use linker LD
 209   --host-cc=HOSTCC         use host C compiler HOSTCC
 210   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 211   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 212   --host-libs=HLIBS        use libs HLIBS when linking for host
 213   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 214   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 215   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 216   --extra-version=STRING   version string suffix []
 217   --build-suffix=SUFFIX    library name suffix []
 218   --arch=ARCH              select architecture [$arch]
 219   --cpu=CPU                select the minimum required CPU (affects
 220                            instruction selection, may crash on older CPUs)
 221   --disable-asm            disable all assembler optimizations
 222   --disable-altivec        disable AltiVec optimizations
 223   --disable-amd3dnow       disable 3DNow! optimizations
 224   --disable-amd3dnowext    disable 3DNow! extended optimizations
 225   --disable-mmx            disable MMX optimizations
 226   --disable-mmx2           disable MMX2 optimizations
 227   --disable-sse            disable SSE optimizations
 228   --disable-ssse3          disable SSSE3 optimizations
 229   --disable-avx            disable AVX optimizations
 230   --disable-armv5te        disable armv5te optimizations
 231   --disable-armv6          disable armv6 optimizations
 232   --disable-armv6t2        disable armv6t2 optimizations
 233   --disable-armvfp         disable ARM VFP optimizations
 234   --disable-iwmmxt         disable iwmmxt optimizations
 235   --disable-mmi            disable MMI optimizations
 236   --disable-neon           disable neon optimizations
 237   --disable-vis            disable VIS optimizations
 238   --disable-yasm           disable use of yasm assembler
 239   --enable-pic             build position-independent code
 240   --malloc-prefix=PFX      prefix malloc and related names with PFX
 241   --enable-sram            allow use of on-chip SRAM
 242   --disable-symver         disable symbol versioning
 243   --optflags               override optimization-related compiler flags
 244
 245 Developer options (useful when working on FFmpeg itself):
 246   --disable-debug          disable debugging symbols
 247   --enable-debug=LEVEL     set the debug level [$debuglevel]
 248   --disable-optimizations  disable compiler optimizations
 249   --enable-extra-warnings  enable more compiler warnings
 250   --disable-stripping      disable stripping of executables and shared libraries
 251   --samples=PATH           location of test samples for FATE, if not set use
 252                            \$FATE_SAMPLES at make invocation time.
 253
 254 NOTE: Object files are built at the place where configure is launched.
 255 EOF
 256   exit 0
 257 }
 258
 259 quotes='""'
 260
 261 log(){
 262     echo "$@" >> $logfile
 263 }
 264
 265 log_file(){
 266     log BEGIN $1
 267     pr -n -t $1 >> $logfile
 268     log END $1
 269 }
 270
 271 echolog(){
 272     log "$@"
 273     echo "$@"
 274 }
 275
 276 warn(){
 277     log "WARNING: $*"
 278     WARNINGS="${WARNINGS}WARNING: $*\n"
 279 }
 280
 281 die(){
 282     echolog "$@"
 283     cat <<EOF
 284
 285 If you think configure made a mistake, make sure you are using the latest
 286 version from Git.  If the latest version fails, report the problem to the
 287 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 288 EOF
 289     if disabled logging; then
 290         cat <<EOF
 291 Rerun configure with logging enabled (do not use --disable-logging), and
 292 include the log this produces with your report.
 293 EOF
 294     else
 295 cat <<EOF
 296 Include the log file "$logfile" produced by configure as this will help
 297 solving the problem.
 298 EOF
 299     fi
 300     exit 1
 301 }
 302
 303 # Avoid locale weirdness, besides we really just want to translate ASCII.
 304 toupper(){
 305     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 306 }
 307
 308 tolower(){
 309     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 310 }
 311
 312 c_escape(){
 313     echo "$*" | sed 's/["\\]/\\\0/g'
 314 }
 315
 316 sh_quote(){
 317     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 318     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 319     echo "$v"
 320 }
 321
 322 cleanws(){
 323     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 324 }
 325
 326 filter(){
 327     pat=$1
 328     shift
 329     for v; do
 330         eval "case $v in $pat) echo $v ;; esac"
 331     done
 332 }
 333
 334 filter_out(){
 335     pat=$1
 336     shift
 337     for v; do
 338         eval "case $v in $pat) ;; *) echo $v ;; esac"
 339     done
 340 }
 341
 342 map(){
 343     m=$1
 344     shift
 345     for v; do eval $m; done
 346 }
 347
 348 set_all(){
 349     value=$1
 350     shift
 351     for var in $*; do
 352         eval $var=$value
 353     done
 354 }
 355
 356 set_weak(){
 357     value=$1
 358     shift
 359     for var; do
 360         eval : \${$var:=$value}
 361     done
 362 }
 363
 364 set_safe(){
 365     var=$1
 366     shift
 367     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 368 }
 369
 370 get_safe(){
 371     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 372 }
 373
 374 pushvar(){
 375     for var in $*; do
 376         eval level=\${${var}_level:=0}
 377         eval ${var}_${level}="\$$var"
 378         eval ${var}_level=$(($level+1))
 379     done
 380 }
 381
 382 popvar(){
 383     for var in $*; do
 384         eval level=\${${var}_level:-0}
 385         test $level = 0 && continue
 386         eval level=$(($level-1))
 387         eval $var="\${${var}_${level}}"
 388         eval ${var}_level=$level
 389         eval unset ${var}_${level}
 390     done
 391 }
 392
 393 enable(){
 394     set_all yes $*
 395 }
 396
 397 disable(){
 398     set_all no $*
 399 }
 400
 401 enable_weak(){
 402     set_weak yes $*
 403 }
 404
 405 disable_weak(){
 406     set_weak no $*
 407 }
 408
 409 enable_safe(){
 410     for var; do
 411         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 412     done
 413 }
 414
 415 disable_safe(){
 416     for var; do
 417         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 418     done
 419 }
 420
 421 do_enable_deep(){
 422     for var; do
 423         enabled $var && continue
 424         eval sel="\$${var}_select"
 425         eval sgs="\$${var}_suggest"
 426         pushvar var sgs
 427         enable_deep $sel
 428         popvar sgs
 429         enable_deep_weak $sgs
 430         popvar var
 431     done
 432 }
 433
 434 enable_deep(){
 435     do_enable_deep $*
 436     enable $*
 437 }
 438
 439 enable_deep_weak(){
 440     do_enable_deep $*
 441     enable_weak $*
 442 }
 443
 444 enabled(){
 445     test "${1#!}" = "$1" && op== || op=!=
 446     eval test "x\$${1#!}" $op "xyes"
 447 }
 448
 449 disabled(){
 450     test "${1#!}" = "$1" && op== || op=!=
 451     eval test "x\$${1#!}" $op "xno"
 452 }
 453
 454 enabled_all(){
 455     for opt; do
 456         enabled $opt || return 1
 457     done
 458 }
 459
 460 disabled_all(){
 461     for opt; do
 462         disabled $opt || return 1
 463     done
 464 }
 465
 466 enabled_any(){
 467     for opt; do
 468         enabled $opt && return 0
 469     done
 470 }
 471
 472 disabled_any(){
 473     for opt; do
 474         disabled $opt && return 0
 475     done
 476     return 1
 477 }
 478
 479 set_default(){
 480     for opt; do
 481         eval : \${$opt:=\$${opt}_default}
 482     done
 483 }
 484
 485 is_in(){
 486     value=$1
 487     shift
 488     for var in $*; do
 489         [ $var = $value ] && return 0
 490     done
 491     return 1
 492 }
 493
 494 check_deps(){
 495     for cfg; do
 496         cfg="${cfg#!}"
 497         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 498         disabled ${cfg}_checking && continue
 499         enable ${cfg}_checking
 500
 501         eval dep_all="\$${cfg}_deps"
 502         eval dep_any="\$${cfg}_deps_any"
 503         eval dep_sel="\$${cfg}_select"
 504         eval dep_sgs="\$${cfg}_suggest"
 505         eval dep_ifa="\$${cfg}_if"
 506         eval dep_ifn="\$${cfg}_if_any"
 507
 508         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 510         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 511
 512         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 513         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 514         enabled_all  $dep_all || disable $cfg
 515         enabled_any  $dep_any || disable $cfg
 516         disabled_any $dep_sel && disable $cfg
 517
 518         if enabled $cfg; then
 519             eval dep_extralibs="\$${cfg}_extralibs"
 520             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 521             enable_deep $dep_sel
 522             enable_deep_weak $dep_sgs
 523         fi
 524
 525         disable ${cfg}_checking
 526     done
 527 }
 528
 529 print_config_h(){
 530     enabled $1 && v=1 || v=0
 531     echo "#define $2 $v"
 532 }
 533
 534 print_config_mak(){
 535     enabled $1 && v= || v=!
 536     echo "$v$2=yes"
 537 }
 538
 539 print_config_asm(){
 540     enabled $1 && echo "%define $2"
 541 }
 542
 543 print_config(){
 544     pfx=$1
 545     files=$2
 546     shift 2
 547     for cfg; do
 548         ucname="$(toupper $cfg)"
 549         for f in $files; do
 550             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 551         done
 552     done
 553 }
 554
 555 print_enabled(){
 556     test "$1" = -n && end=" " && shift || end="\n"
 557     suf=$1
 558     shift
 559     for v; do
 560         enabled $v && printf "%s$end" ${v%$suf};
 561     done
 562 }
 563
 564 append(){
 565     var=$1
 566     shift
 567     eval "$var=\"\$$var $*\""
 568 }
 569
 570 prepend(){
 571     var=$1
 572     shift
 573     eval "$var=\"$* \$$var\""
 574 }
 575
 576 add_cppflags(){
 577     append CPPFLAGS $($filter_cppflags "$@")
 578 }
 579
 580 add_cflags(){
 581     append CFLAGS $($filter_cflags "$@")
 582 }
 583
 584 add_asflags(){
 585     append ASFLAGS $($filter_asflags "$@")
 586 }
 587
 588 add_ldflags(){
 589     append LDFLAGS "$@"
 590 }
 591
 592 add_extralibs(){
 593     prepend extralibs "$@"
 594 }
 595
 596 check_cmd(){
 597     log "$@"
 598     "$@" >> $logfile 2>&1
 599 }
 600
 601 check_cc(){
 602     log check_cc "$@"
 603     cat > $TMPC
 604     log_file $TMPC
 605     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 606 }
 607
 608 check_cpp(){
 609     log check_cpp "$@"
 610     cat > $TMPC
 611     log_file $TMPC
 612     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 613 }
 614
 615 check_as(){
 616     log check_as "$@"
 617     cat > $TMPC
 618     log_file $TMPC
 619     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 620 }
 621
 622 check_asm(){
 623     log check_asm "$@"
 624     name="$1"
 625     code="$2"
 626     shift 2
 627     disable $name
 628     check_as "$@" <<EOF && enable $name
 629 void foo(void){ __asm__ volatile($code); }
 630 EOF
 631 }
 632
 633 check_yasm(){
 634     log check_yasm "$@"
 635     echo "$1" > $TMPS
 636     log_file $TMPS
 637     shift 1
 638     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 639 }
 640
 641 check_ld(){
 642     log check_ld "$@"
 643     flags=''
 644     libs=''
 645     for f; do
 646         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 647     done
 648     check_cc $($filter_cflags $flags) || return
 649     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 650 }
 651
 652 check_cppflags(){
 653     log check_cppflags "$@"
 654     set -- $($filter_cppflags "$@")
 655     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 656 int x;
 657 EOF
 658 }
 659
 660 check_cflags(){
 661     log check_cflags "$@"
 662     set -- $($filter_cflags "$@")
 663     check_cc "$@" <<EOF && append CFLAGS "$@"
 664 int x;
 665 EOF
 666 }
 667
 668 test_ldflags(){
 669     log test_ldflags "$@"
 670     check_ld "$@" <<EOF
 671 int main(void){ return 0; }
 672 EOF
 673 }
 674
 675 check_ldflags(){
 676     log check_ldflags "$@"
 677     test_ldflags "$@" && add_ldflags "$@"
 678 }
 679
 680 check_header(){
 681     log check_header "$@"
 682     header=$1
 683     shift
 684     disable_safe $header
 685     check_cpp "$@" <<EOF && enable_safe $header
 686 #include <$header>
 687 int x;
 688 EOF
 689 }
 690
 691 check_func(){
 692     log check_func "$@"
 693     func=$1
 694     shift
 695     disable $func
 696     check_ld "$@" <<EOF && enable $func
 697 extern int $func();
 698 int main(void){ $func(); }
 699 EOF
 700 }
 701
 702 check_mathfunc(){
 703     log check_mathfunc "$@"
 704     func=$1
 705     shift
 706     disable $func
 707     check_ld "$@" <<EOF && enable $func
 708 #include <math.h>
 709 float foo(float f) { return $func(f); }
 710 int main(void){ return 0; }
 711 EOF
 712 }
 713
 714 check_func_headers(){
 715     log check_func_headers "$@"
 716     headers=$1
 717     funcs=$2
 718     shift 2
 719     {
 720         for hdr in $headers; do
 721             echo "#include <$hdr>"
 722         done
 723         for func in $funcs; do
 724             echo "long check_$func(void) { return (long) $func; }"
 725         done
 726         echo "int main(void) { return 0; }"
 727     } | check_ld "$@" && enable $funcs && enable_safe $headers
 728 }
 729
 730 check_cpp_condition(){
 731     log check_cpp_condition "$@"
 732     header=$1
 733     condition=$2
 734     shift 2
 735     check_cpp $($filter_cppflags "$@") <<EOF
 736 #include <$header>
 737 #if !($condition)
 738 #error "unsatisfied condition: $condition"
 739 #endif
 740 EOF
 741 }
 742
 743 check_lib(){
 744     log check_lib "$@"
 745     header="$1"
 746     func="$2"
 747     shift 2
 748     check_header $header && check_func $func "$@" && add_extralibs "$@"
 749 }
 750
 751 check_lib2(){
 752     log check_lib2 "$@"
 753     headers="$1"
 754     funcs="$2"
 755     shift 2
 756     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 757 }
 758
 759 check_pkg_config(){
 760     log check_pkg_config "$@"
 761     pkg="$1"
 762     headers="$2"
 763     funcs="$3"
 764     shift 3
 765     $pkg_config --exists $pkg 2>/dev/null || return
 766     pkg_cflags=$($pkg_config --cflags $pkg)
 767     pkg_libs=$($pkg_config --libs $pkg)
 768     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 769         set_safe ${pkg}_cflags $pkg_cflags   &&
 770         set_safe ${pkg}_libs   $pkg_libs
 771 }
 772
 773 check_exec(){
 774     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 775 }
 776
 777 check_exec_crash(){
 778     code=$(cat)
 779
 780     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 781     # are safe but may not be available everywhere.  Thus we use
 782     # raise(SIGTERM) instead.  The check is run in a subshell so we
 783     # can redirect the "Terminated" message from the shell.  SIGBUS
 784     # is not defined by standard C so it is used conditionally.
 785
 786     (check_exec "$@") >> $logfile 2>&1 <<EOF
 787 #include <signal.h>
 788 static void sighandler(int sig){
 789     raise(SIGTERM);
 790 }
 791 int main(void){
 792     signal(SIGILL, sighandler);
 793     signal(SIGFPE, sighandler);
 794     signal(SIGSEGV, sighandler);
 795 #ifdef SIGBUS
 796     signal(SIGBUS, sighandler);
 797 #endif
 798     { $code }
 799 }
 800 EOF
 801 }
 802
 803 check_type(){
 804     log check_type "$@"
 805     headers=$1
 806     type=$2
 807     shift 2
 808     disable_safe "$type"
 809     incs=""
 810     for hdr in $headers; do
 811         incs="$incs
 812 #include <$hdr>"
 813     done
 814     check_cc "$@" <<EOF && enable_safe "$type"
 815 $incs
 816 $type v;
 817 EOF
 818 }
 819
 820 check_struct(){
 821     log check_type "$@"
 822     headers=$1
 823     struct=$2
 824     member=$3
 825     shift 3
 826     disable_safe "${struct}_${member}"
 827     incs=""
 828     for hdr in $headers; do
 829         incs="$incs
 830 #include <$hdr>"
 831     done
 832     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 833 $incs
 834 const void *p = &(($struct *)0)->$member;
 835 EOF
 836 }
 837
 838 require(){
 839     name="$1"
 840     header="$2"
 841     func="$3"
 842     shift 3
 843     check_lib $header $func "$@" || die "ERROR: $name not found"
 844 }
 845
 846 require2(){
 847     name="$1"
 848     headers="$2"
 849     func="$3"
 850     shift 3
 851     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 852 }
 853
 854 require_pkg_config(){
 855     pkg="$1"
 856     check_pkg_config "$@" || die "ERROR: $pkg not found"
 857     add_cflags    $(get_safe ${pkg}_cflags)
 858     add_extralibs $(get_safe ${pkg}_libs)
 859 }
 860
 861 check_host_cc(){
 862     log check_host_cc "$@"
 863     cat > $TMPC
 864     log_file $TMPC
 865     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 866 }
 867
 868 check_host_cflags(){
 869     log check_host_cflags "$@"
 870     check_host_cc "$@" <<EOF && append host_cflags "$@"
 871 int x;
 872 EOF
 873 }
 874
 875 apply(){
 876     file=$1
 877     shift
 878     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 879 }
 880
 881 cp_if_changed(){
 882     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 883     mkdir -p "$(dirname $2)"
 884     cp -f "$1" "$2"
 885 }
 886
 887 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 888 # system-dependent things.
 889
 890 COMPONENT_LIST="
 891     bsfs
 892     decoders
 893     demuxers
 894     encoders
 895     filters
 896     hwaccels
 897     indevs
 898     muxers
 899     outdevs
 900     parsers
 901     protocols
 902 "
 903
 904 CONFIG_LIST="
 905     $COMPONENT_LIST
 906     aandct
 907     ac3dsp
 908     avcodec
 909     avdevice
 910     avfilter
 911     avformat
 912     avisynth
 913     bzlib
 914     crystalhd
 915     dct
 916     doc
 917     dwt
 918     dxva2
 919     fastdiv
 920     ffmpeg
 921     avconv
 922     ffplay
 923     ffprobe
 924     ffserver
 925     fft
 926     frei0r
 927     golomb
 928     gpl
 929     gray
 930     h264dsp
 931     h264pred
 932     hardcoded_tables
 933     huffman
 934     libcelt
 935     libdc1394
 936     libdirac
 937     libfaac
 938     libfreetype
 939     libgsm
 940     libmp3lame
 941     libnut
 942     libopencore_amrnb
 943     libopencore_amrwb
 944     libopencv
 945     libopenjpeg
 946     librtmp
 947     libschroedinger
 948     libspeex
 949     libtheora
 950     libvo_aacenc
 951     libvo_amrwbenc
 952     libvorbis
 953     libvpx
 954     libx264
 955     libxavs
 956     libxvid
 957     lpc
 958     lsp
 959     mdct
 960     memalign_hack
 961     mlib
 962     mpegaudiodsp
 963     network
 964     nonfree
 965     openal
 966     pic
 967     postproc
 968     rdft
 969     rtpdec
 970     runtime_cpudetect
 971     shared
 972     sinewin
 973     small
 974     sram
 975     static
 976     swscale
 977     swscale_alpha
 978     thumb
 979     vaapi
 980     vdpau
 981     version3
 982     x11grab
 983     zlib
 984 "
 985
 986 THREADS_LIST='
 987     pthreads
 988     w32threads
 989 '
 990
 991 ARCH_LIST='
 992     alpha
 993     arm
 994     avr32
 995     avr32_ap
 996     avr32_uc
 997     bfin
 998     ia64
 999     m68k
1000     mips
1001     mips64
1002     parisc
1003     ppc
1004     ppc64
1005     s390
1006     sh4
1007     sparc
1008     sparc64
1009     tomi
1010     x86
1011     x86_32
1012     x86_64
1013 '
1014
1015 ARCH_EXT_LIST='
1016     altivec
1017     amd3dnow
1018     amd3dnowext
1019     armv5te
1020     armv6
1021     armv6t2
1022     armvfp
1023     avx
1024     iwmmxt
1025     mmi
1026     mmx
1027     mmx2
1028     neon
1029     ppc4xx
1030     sse
1031     ssse3
1032     vfpv3
1033     vis
1034 '
1035
1036 HAVE_LIST_PUB='
1037     bigendian
1038     fast_unaligned
1039 '
1040
1041 HAVE_LIST="
1042     $ARCH_EXT_LIST
1043     $HAVE_LIST_PUB
1044     $THREADS_LIST
1045     aligned_stack
1046     alsa_asoundlib_h
1047     altivec_h
1048     arpa_inet_h
1049     attribute_may_alias
1050     attribute_packed
1051     bswap
1052     closesocket
1053     cmov
1054     dcbzl
1055     dev_bktr_ioctl_bt848_h
1056     dev_bktr_ioctl_meteor_h
1057     dev_ic_bt8xx_h
1058     dev_video_meteor_ioctl_meteor_h
1059     dev_video_bktr_ioctl_bt848_h
1060     dlfcn_h
1061     dlopen
1062     dos_paths
1063     ebp_available
1064     ebx_available
1065     exp2
1066     exp2f
1067     fast_64bit
1068     fast_clz
1069     fast_cmov
1070     fcntl
1071     fork
1072     getaddrinfo
1073     gethrtime
1074     GetProcessMemoryInfo
1075     GetProcessTimes
1076     getrusage
1077     gnu_as
1078     struct_rusage_ru_maxrss
1079     ibm_asm
1080     inet_aton
1081     inline_asm
1082     isatty
1083     kbhit
1084     ldbrx
1085     llrint
1086     llrintf
1087     local_aligned_16
1088     local_aligned_8
1089     localtime_r
1090     log2
1091     log2f
1092     loongson
1093     lrint
1094     lrintf
1095     lzo1x_999_compress
1096     machine_ioctl_bt848_h
1097     machine_ioctl_meteor_h
1098     malloc_h
1099     MapViewOfFile
1100     memalign
1101     mkstemp
1102     mmap
1103     posix_memalign
1104     round
1105     roundf
1106     sdl
1107     sdl_video_size
1108     setmode
1109     sndio_h
1110     socklen_t
1111     soundcard_h
1112     poll_h
1113     setrlimit
1114     strerror_r
1115     strptime
1116     strtok_r
1117     struct_addrinfo
1118     struct_ipv6_mreq
1119     struct_sockaddr_in6
1120     struct_sockaddr_sa_len
1121     struct_sockaddr_storage
1122     symver
1123     symver_gnu_asm
1124     symver_asm_label
1125     sys_mman_h
1126     sys_resource_h
1127     sys_select_h
1128     sys_soundcard_h
1129     sys_videoio_h
1130     termios_h
1131     threads
1132     trunc
1133     truncf
1134     vfp_args
1135     VirtualAlloc
1136     winsock2_h
1137     xform_asm
1138     xmm_clobbers
1139     yasm
1140 "
1141
1142 # options emitted with CONFIG_ prefix but not available on command line
1143 CONFIG_EXTRA="
1144     avutil
1145     gplv3
1146     lgplv3
1147 "
1148
1149 CMDLINE_SELECT="
1150     $ARCH_EXT_LIST
1151     $CONFIG_LIST
1152     $THREADS_LIST
1153     asm
1154     cross_compile
1155     debug
1156     extra_warnings
1157     logging
1158     optimizations
1159     stripping
1160     symver
1161     yasm
1162 "
1163
1164 PATHS_LIST='
1165     bindir
1166     datadir
1167     incdir
1168     libdir
1169     mandir
1170     prefix
1171     shlibdir
1172 '
1173
1174 CMDLINE_SET="
1175     $PATHS_LIST
1176     ar
1177     arch
1178     as
1179     build_suffix
1180     cc
1181     cpu
1182     cross_prefix
1183     dep_cc
1184     extra_version
1185     host_cc
1186     host_cflags
1187     host_ldflags
1188     host_libs
1189     host_os
1190     install
1191     ld
1192     logfile
1193     malloc_prefix
1194     nm
1195     optflags
1196     pkg_config
1197     samples
1198     strip
1199     sysinclude
1200     sysroot
1201     target_exec
1202     target_os
1203     target_path
1204 "
1205
1206 CMDLINE_APPEND="
1207     extra_cflags
1208 "
1209
1210 # code dependency declarations
1211
1212 # architecture extensions
1213
1214 armv5te_deps="arm"
1215 armv6_deps="arm"
1216 armv6t2_deps="arm"
1217 armvfp_deps="arm"
1218 iwmmxt_deps="arm"
1219 neon_deps="arm"
1220 vfpv3_deps="armvfp"
1221
1222 mmi_deps="mips"
1223
1224 altivec_deps="ppc"
1225 ppc4xx_deps="ppc"
1226
1227 vis_deps="sparc"
1228
1229 x86_64_suggest="cmov fast_cmov"
1230 amd3dnow_deps="mmx"
1231 amd3dnowext_deps="amd3dnow"
1232 mmx_deps="x86"
1233 mmx2_deps="mmx"
1234 sse_deps="mmx"
1235 ssse3_deps="sse"
1236 avx_deps="ssse3"
1237
1238 aligned_stack_if_any="ppc x86"
1239 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1240 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1241 fast_unaligned_if_any="armv6 ppc x86"
1242
1243 need_memalign="altivec neon sse"
1244 inline_asm_deps="!tms470"
1245
1246 symver_if_any="symver_asm_label symver_gnu_asm"
1247
1248 # subsystems
1249 dct_select="rdft"
1250 mdct_select="fft"
1251 rdft_select="fft"
1252 mpegaudiodsp_select="dct"
1253
1254 # decoders / encoders / hardware accelerators
1255 aac_decoder_select="mdct sinewin"
1256 aac_encoder_select="mdct sinewin"
1257 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1258 ac3_decoder_select="mdct ac3dsp ac3_parser"
1259 ac3_encoder_select="mdct ac3dsp"
1260 ac3_fixed_encoder_select="mdct ac3dsp"
1261 alac_encoder_select="lpc"
1262 amrnb_decoder_select="lsp"
1263 amrwb_decoder_select="lsp"
1264 atrac1_decoder_select="mdct sinewin"
1265 atrac3_decoder_select="mdct"
1266 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1267 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1268 cavs_decoder_select="golomb"
1269 cook_decoder_select="mdct sinewin"
1270 cscd_decoder_suggest="zlib"
1271 dca_decoder_select="mdct"
1272 dnxhd_encoder_select="aandct"
1273 dxa_decoder_select="zlib"
1274 eac3_decoder_select="ac3_decoder"
1275 eac3_encoder_select="mdct ac3dsp"
1276 eamad_decoder_select="aandct"
1277 eatgq_decoder_select="aandct"
1278 eatqi_decoder_select="aandct"
1279 ffv1_decoder_select="golomb"
1280 flac_decoder_select="golomb"
1281 flac_encoder_select="golomb lpc"
1282 flashsv_decoder_select="zlib"
1283 flashsv_encoder_select="zlib"
1284 flashsv2_encoder_select="zlib"
1285 flashsv2_decoder_select="zlib"
1286 flv_decoder_select="h263_decoder"
1287 flv_encoder_select="h263_encoder"
1288 fraps_decoder_select="huffman"
1289 h261_encoder_select="aandct"
1290 h263_decoder_select="h263_parser"
1291 h263_encoder_select="aandct"
1292 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1293 h263i_decoder_select="h263_decoder"
1294 h263p_encoder_select="h263_encoder"
1295 h264_decoder_select="golomb h264dsp h264pred"
1296 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1297 h264_dxva2_hwaccel_deps="dxva2api_h"
1298 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1299 h264_vaapi_hwaccel_select="vaapi"
1300 h264_vdpau_decoder_select="vdpau h264_decoder"
1301 imc_decoder_select="fft mdct sinewin"
1302 jpegls_decoder_select="golomb"
1303 jpegls_encoder_select="golomb"
1304 ljpeg_encoder_select="aandct"
1305 loco_decoder_select="golomb"
1306 mjpeg_encoder_select="aandct"
1307 mlp_decoder_select="mlp_parser"
1308 mp1_decoder_select="mpegaudiodsp"
1309 mp2_decoder_select="mpegaudiodsp"
1310 mp3adu_decoder_select="mpegaudiodsp"
1311 mp3_decoder_select="mpegaudiodsp"
1312 mp3on4_decoder_select="mpegaudiodsp"
1313 mp1float_decoder_select="mpegaudiodsp"
1314 mp2float_decoder_select="mpegaudiodsp"
1315 mp3adufloat_decoder_select="mpegaudiodsp"
1316 mp3float_decoder_select="mpegaudiodsp"
1317 mp3on4float_decoder_select="mpegaudiodsp"
1318 mpeg1video_encoder_select="aandct"
1319 mpeg2video_encoder_select="aandct"
1320 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1321 mpeg4_encoder_select="h263_encoder"
1322 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1323 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1324 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1325 mpeg2_crystalhd_decoder_select="crystalhd"
1326 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1327 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1328 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1329 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1330 mpeg4_crystalhd_decoder_select="crystalhd"
1331 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1332 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1333 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1334 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1335 msmpeg4_crystalhd_decoder_select="crystalhd"
1336 msmpeg4v1_decoder_select="h263_decoder"
1337 msmpeg4v1_encoder_select="h263_encoder"
1338 msmpeg4v2_decoder_select="h263_decoder"
1339 msmpeg4v2_encoder_select="h263_encoder"
1340 msmpeg4v3_decoder_select="h263_decoder"
1341 msmpeg4v3_encoder_select="h263_encoder"
1342 nellymoser_decoder_select="mdct sinewin"
1343 nellymoser_encoder_select="mdct sinewin"
1344 png_decoder_select="zlib"
1345 png_encoder_select="zlib"
1346 qcelp_decoder_select="lsp"
1347 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1348 ra_144_encoder_select="lpc"
1349 rv10_decoder_select="h263_decoder"
1350 rv10_encoder_select="h263_encoder"
1351 rv20_decoder_select="h263_decoder"
1352 rv20_encoder_select="h263_encoder"
1353 rv30_decoder_select="golomb h264pred"
1354 rv40_decoder_select="golomb h264pred"
1355 shorten_decoder_select="golomb"
1356 sipr_decoder_select="lsp"
1357 snow_decoder_select="dwt"
1358 snow_encoder_select="aandct dwt"
1359 sonic_decoder_select="golomb"
1360 sonic_encoder_select="golomb"
1361 sonic_ls_encoder_select="golomb"
1362 svq1_encoder_select="aandct"
1363 svq3_decoder_select="golomb h264dsp h264pred"
1364 svq3_decoder_suggest="zlib"
1365 theora_decoder_select="vp3_decoder"
1366 tiff_decoder_suggest="zlib"
1367 tiff_encoder_suggest="zlib"
1368 truehd_decoder_select="mlp_decoder"
1369 tscc_decoder_select="zlib"
1370 twinvq_decoder_select="mdct lsp sinewin"
1371 vc1_decoder_select="h263_decoder"
1372 vc1_crystalhd_decoder_select="crystalhd"
1373 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1374 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1375 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1376 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1377 vc1image_decoder_select="vc1_decoder"
1378 vorbis_decoder_select="mdct"
1379 vorbis_encoder_select="mdct"
1380 vp6_decoder_select="huffman"
1381 vp6a_decoder_select="vp6_decoder"
1382 vp6f_decoder_select="vp6_decoder"
1383 vp8_decoder_select="h264pred"
1384 wmapro_decoder_select="mdct sinewin"
1385 wmav1_decoder_select="mdct sinewin"
1386 wmav1_encoder_select="mdct sinewin"
1387 wmav2_decoder_select="mdct sinewin"
1388 wmav2_encoder_select="mdct sinewin"
1389 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1390 wmv1_decoder_select="h263_decoder"
1391 wmv1_encoder_select="h263_encoder"
1392 wmv2_decoder_select="h263_decoder"
1393 wmv2_encoder_select="h263_encoder"
1394 wmv3_decoder_select="vc1_decoder"
1395 wmv3_crystalhd_decoder_select="crystalhd"
1396 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1397 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1398 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1399 wmv3image_decoder_select="wmv3_decoder"
1400 zlib_decoder_select="zlib"
1401 zlib_encoder_select="zlib"
1402 zmbv_decoder_select="zlib"
1403 zmbv_encoder_select="zlib"
1404
1405 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1406 vaapi_deps="va_va_h"
1407 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1408
1409 # parsers
1410 h264_parser_select="golomb h264dsp h264pred"
1411
1412 # external libraries
1413 libcelt_decoder_deps="libcelt"
1414 libdirac_decoder_deps="libdirac !libschroedinger"
1415 libdirac_encoder_deps="libdirac"
1416 libfaac_encoder_deps="libfaac"
1417 libgsm_decoder_deps="libgsm"
1418 libgsm_encoder_deps="libgsm"
1419 libgsm_ms_decoder_deps="libgsm"
1420 libgsm_ms_encoder_deps="libgsm"
1421 libmp3lame_encoder_deps="libmp3lame"
1422 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1423 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1424 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1425 libopenjpeg_decoder_deps="libopenjpeg"
1426 libschroedinger_decoder_deps="libschroedinger"
1427 libschroedinger_encoder_deps="libschroedinger"
1428 libspeex_decoder_deps="libspeex"
1429 libtheora_encoder_deps="libtheora"
1430 libvo_aacenc_encoder_deps="libvo_aacenc"
1431 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1432 libvorbis_encoder_deps="libvorbis"
1433 libvpx_decoder_deps="libvpx"
1434 libvpx_encoder_deps="libvpx"
1435 libx264_encoder_deps="libx264"
1436 libxavs_encoder_deps="libxavs"
1437 libxvid_encoder_deps="libxvid"
1438
1439 # demuxers / muxers
1440 ac3_demuxer_select="ac3_parser"
1441 asf_stream_muxer_select="asf_muxer"
1442 avisynth_demuxer_deps="avisynth"
1443 dirac_demuxer_select="dirac_parser"
1444 eac3_demuxer_select="ac3_parser"
1445 flac_demuxer_select="flac_parser"
1446 ipod_muxer_select="mov_muxer"
1447 libnut_demuxer_deps="libnut"
1448 libnut_muxer_deps="libnut"
1449 matroska_audio_muxer_select="matroska_muxer"
1450 matroska_demuxer_suggest="zlib bzlib"
1451 mov_demuxer_suggest="zlib"
1452 mp3_demuxer_select="mpegaudio_parser"
1453 mp4_muxer_select="mov_muxer"
1454 mpegtsraw_demuxer_select="mpegts_demuxer"
1455 mxf_d10_muxer_select="mxf_muxer"
1456 ogg_demuxer_select="golomb"
1457 psp_muxer_select="mov_muxer"
1458 rtp_demuxer_select="sdp_demuxer"
1459 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1460 rtsp_demuxer_select="http_protocol rtpdec"
1461 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1462 sap_demuxer_select="sdp_demuxer"
1463 sap_muxer_select="rtp_muxer rtp_protocol"
1464 sdp_demuxer_select="rtpdec"
1465 spdif_muxer_select="aac_parser"
1466 tg2_muxer_select="mov_muxer"
1467 tgp_muxer_select="mov_muxer"
1468 w64_demuxer_deps="wav_demuxer"
1469
1470 # indevs / outdevs
1471 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1472 alsa_outdev_deps="alsa_asoundlib_h"
1473 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1474 dshow_indev_deps="IBaseFilter"
1475 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1476 dv1394_indev_deps="dv1394 dv_demuxer"
1477 fbdev_indev_deps="linux_fb_h"
1478 jack_indev_deps="jack_jack_h sem_timedwait"
1479 lavfi_indev_deps="avfilter"
1480 libdc1394_indev_deps="libdc1394"
1481 openal_indev_deps="openal"
1482 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1483 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1484 sdl_outdev_deps="sdl"
1485 sndio_indev_deps="sndio_h"
1486 sndio_outdev_deps="sndio_h"
1487 v4l_indev_deps="linux_videodev_h"
1488 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1489 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1490 vfwcap_indev_extralibs="-lavicap32"
1491 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1492 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1493
1494 # protocols
1495 gopher_protocol_deps="network"
1496 http_protocol_deps="network"
1497 http_protocol_select="tcp_protocol"
1498 mmsh_protocol_select="http_protocol"
1499 mmst_protocol_deps="network"
1500 rtmp_protocol_select="tcp_protocol"
1501 rtp_protocol_select="udp_protocol"
1502 tcp_protocol_deps="network"
1503 udp_protocol_deps="network"
1504
1505 # filters
1506 abuffer_filter_deps="strtok_r"
1507 aformat_filter_deps="strtok_r"
1508 amovie_filter_deps="avcodec avformat"
1509 blackframe_filter_deps="gpl"
1510 boxblur_filter_deps="gpl"
1511 cropdetect_filter_deps="gpl"
1512 delogo_filter_deps="gpl"
1513 drawtext_filter_deps="libfreetype"
1514 frei0r_filter_deps="frei0r dlopen strtok_r"
1515 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1516 hqdn3d_filter_deps="gpl"
1517 movie_filter_deps="avcodec avformat"
1518 mp_filter_deps="gpl avcodec"
1519 mptestsrc_filter_deps="gpl"
1520 negate_filter_deps="lut_filter"
1521 ocv_filter_deps="libopencv"
1522 scale_filter_deps="swscale"
1523 yadif_filter_deps="gpl"
1524
1525 # libraries
1526 avdevice_deps="avcodec avformat"
1527 avformat_deps="avcodec"
1528 postproc_deps="gpl"
1529
1530 # programs
1531 ffmpeg_deps="avcodec avformat swscale"
1532 ffmpeg_select="buffer_filter buffersink_filter"
1533 avconv_deps="avcodec avformat swscale"
1534 avconv_select="buffer_filter"
1535 ffplay_deps="avcodec avformat swscale sdl"
1536 ffplay_select="buffersink_filter rdft"
1537 ffprobe_deps="avcodec avformat"
1538 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1539 ffserver_extralibs='$ldl'
1540
1541 doc_deps="texi2html"
1542
1543 # tests
1544
1545 test_deps(){
1546     suf1=$1
1547     suf2=$2
1548     shift 2
1549     for v; do
1550         dep=${v%=*}
1551         tests=${v#*=}
1552         for name in ${tests}; do
1553             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1554         done
1555     done
1556 }
1557
1558 test_deps _encoder _decoder                                             \
1559     adpcm_g726=g726                                                     \
1560     adpcm_ima_qt                                                        \
1561     adpcm_ima_wav                                                       \
1562     adpcm_ms                                                            \
1563     adpcm_swf                                                           \
1564     adpcm_yamaha=adpcm_yam                                              \
1565     alac                                                                \
1566     asv1                                                                \
1567     asv2                                                                \
1568     bmp                                                                 \
1569     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1570     dvvideo="dv dv50"                                                   \
1571     ffv1                                                                \
1572     flac                                                                \
1573     flashsv                                                             \
1574     flv                                                                 \
1575     gif                                                                 \
1576     h261                                                                \
1577     h263="h263 h263p"                                                   \
1578     huffyuv                                                             \
1579     jpegls                                                              \
1580     mjpeg="jpg mjpeg ljpeg"                                             \
1581     mp2                                                                 \
1582     mpeg1video="mpeg mpeg1b"                                            \
1583     mpeg2video="mpeg2 mpeg2thread"                                      \
1584     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1585     msmpeg4v3=msmpeg4                                                   \
1586     msmpeg4v2                                                           \
1587     pbm=pbmpipe                                                         \
1588     pcx                                                                 \
1589     pgm="pgm pgmpipe"                                                   \
1590     png                                                                 \
1591     ppm="ppm ppmpipe"                                                   \
1592     rawvideo="rgb yuv"                                                  \
1593     roq                                                                 \
1594     rv10                                                                \
1595     rv20                                                                \
1596     sgi                                                                 \
1597     snow="snow snowll"                                                  \
1598     svq1                                                                \
1599     targa=tga                                                           \
1600     tiff                                                                \
1601     wmav1                                                               \
1602     wmav2                                                               \
1603     wmv1                                                                \
1604     wmv2                                                                \
1605
1606 test_deps _muxer _demuxer                                               \
1607     aiff                                                                \
1608     pcm_alaw=alaw                                                       \
1609     asf                                                                 \
1610     au                                                                  \
1611     avi                                                                 \
1612     dv=dv_fmt                                                           \
1613     ffm                                                                 \
1614     flv=flv_fmt                                                         \
1615     gxf                                                                 \
1616     matroska=mkv                                                        \
1617     mmf                                                                 \
1618     mov                                                                 \
1619     pcm_mulaw=mulaw                                                     \
1620     mxf="mxf mxf_d10"                                                   \
1621     nut                                                                 \
1622     ogg                                                                 \
1623     rawvideo=pixfmt                                                     \
1624     rm                                                                  \
1625     swf                                                                 \
1626     mpegts=ts                                                           \
1627     voc                                                                 \
1628     wav                                                                 \
1629     yuv4mpegpipe=yuv4mpeg                                               \
1630
1631 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1632 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1633
1634 # default parameters
1635
1636 logfile="config.log"
1637
1638 # installation paths
1639 prefix_default="/usr/local"
1640 bindir_default='${prefix}/bin'
1641 datadir_default='${prefix}/share/ffmpeg'
1642 incdir_default='${prefix}/include'
1643 libdir_default='${prefix}/lib'
1644 mandir_default='${prefix}/share/man'
1645 shlibdir_default="$libdir_default"
1646
1647 # toolchain
1648 ar_default="ar"
1649 cc_default="gcc"
1650 cc_version=\"unknown\"
1651 host_cc_default="gcc"
1652 install="install"
1653 ln_s="ln -sf"
1654 nm_default="nm"
1655 objformat="elf"
1656 pkg_config_default=pkg-config
1657 ranlib="ranlib"
1658 strip_default="strip"
1659 yasmexe="yasm"
1660 nogas=":"
1661
1662 nm_opts='-g'
1663
1664 # machine
1665 arch_default=$(uname -m)
1666 cpu="generic"
1667
1668 # OS
1669 target_os_default=$(tolower $(uname -s))
1670 host_os=$target_os_default
1671
1672 # configurable options
1673 enable avcodec
1674 enable avdevice
1675 enable avfilter
1676 enable avformat
1677 enable avutil
1678 enable asm
1679 enable debug
1680 enable doc
1681 enable fastdiv
1682 enable ffmpeg
1683 enable avconv
1684 enable ffplay
1685 enable ffprobe
1686 enable ffserver
1687 enable network
1688 enable optimizations
1689 enable postproc
1690 enable protocols
1691 enable static
1692 enable stripping
1693 enable swscale
1694 enable swscale_alpha
1695
1696 # build settings
1697 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1698 FFSERVERLDFLAGS=-Wl,-E
1699 LIBPREF="lib"
1700 LIBSUF=".a"
1701 FULLNAME='$(NAME)$(BUILDSUF)'
1702 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1703 SLIBPREF="lib"
1704 SLIBSUF=".so"
1705 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1706 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1707 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1708 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1709 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1710 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1711
1712 AS_O='-o $@'
1713 CC_O='-o $@'
1714
1715 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1716 host_libs='-lm'
1717
1718 target_path='$(CURDIR)'
1719
1720 # since the object filename is not given with the -MM flag, the compiler
1721 # is only able to print the basename, and we must add the path ourselves
1722 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1723 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1724
1725 # find source path
1726 if test -f configure; then
1727     source_path=.
1728 else
1729     source_path=$(cd $(dirname "$0"); pwd)
1730     echo "$source_path" | grep -q '[[:blank:]]' &&
1731         die "Out of tree builds are impossible with whitespace in source path."
1732     test -e "$source_path/config.h" &&
1733         die "Out of tree builds are impossible with config.h in source dir."
1734 fi
1735
1736 for v in "$@"; do
1737     r=${v#*=}
1738     l=${v%"$r"}
1739     r=$(sh_quote "$r")
1740     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1741 done
1742
1743 find_things(){
1744     thing=$1
1745     pattern=$2
1746     file=$source_path/$3
1747     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1748 }
1749
1750 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1751 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1752 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1753 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1754 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1755 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1756 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1757 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1758 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1759 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1760 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1761
1762 find_tests(){
1763     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1764 }
1765
1766 ACODEC_TESTS=$(find_tests acodec)
1767 VCODEC_TESTS=$(find_tests vsynth1)
1768 LAVF_TESTS=$(find_tests lavf)
1769 LAVFI_TESTS=$(find_tests lavfi)
1770 SEEK_TESTS=$(find_tests seek seek_)
1771
1772 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1773
1774 for n in $COMPONENT_LIST; do
1775     v=$(toupper ${n%s})_LIST
1776     eval enable \$$v
1777     eval ${n}_if_any="\$$v"
1778 done
1779
1780 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1781
1782 die_unknown(){
1783     echo "Unknown option \"$1\"."
1784     echo "See $0 --help for available options."
1785     exit 1
1786 }
1787
1788 show_list() {
1789     suffix=_$1
1790     shift
1791     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1792     exit 0
1793 }
1794
1795 for opt do
1796     optval="${opt#*=}"
1797     case "$opt" in
1798     --extra-ldflags=*) add_ldflags $optval
1799     ;;
1800     --extra-libs=*) add_extralibs $optval
1801     ;;
1802     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1803     ;;
1804     --enable-debug=*) debuglevel="$optval"
1805     ;;
1806     --disable-everything)
1807     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1808     ;;
1809     --enable-*=*|--disable-*=*)
1810     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1811     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1812     eval list=\$$(toupper $thing)_LIST
1813     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1814     $action $(filter "$name" $list)
1815     ;;
1816     --enable-?*|--disable-?*)
1817     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1818     if is_in $option $COMPONENT_LIST; then
1819         test $action = disable && action=unset
1820         eval $action \$$(toupper ${option%s})_LIST
1821     elif is_in $option $CMDLINE_SELECT; then
1822         $action $option
1823     else
1824         die_unknown $opt
1825     fi
1826     ;;
1827     --list-*)
1828         NAME="${opt#--list-}"
1829         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1830         NAME=${NAME%s}
1831         eval show_list $NAME \$$(toupper $NAME)_LIST
1832     ;;
1833     --help|-h) show_help
1834     ;;
1835     *)
1836     optname="${opt%%=*}"
1837     optname="${optname#--}"
1838     optname=$(echo "$optname" | sed 's/-/_/g')
1839     if is_in $optname $CMDLINE_SET; then
1840         eval $optname='$optval'
1841     elif is_in $optname $CMDLINE_APPEND; then
1842         append $optname "$optval"
1843     else
1844          die_unknown $opt
1845     fi
1846     ;;
1847     esac
1848 done
1849
1850 disabled logging && logfile=/dev/null
1851
1852 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1853 set >> $logfile
1854
1855 test -n "$cross_prefix" && enable cross_compile
1856
1857 if enabled cross_compile; then
1858     test -n "$arch" && test -n "$target_os" ||
1859         die "Must specify target arch and OS when cross-compiling"
1860 fi
1861
1862 set_default arch target_os
1863
1864 ar_default="${cross_prefix}${ar_default}"
1865 cc_default="${cross_prefix}${cc_default}"
1866 nm_default="${cross_prefix}${nm_default}"
1867 pkg_config_default="${cross_prefix}${pkg_config_default}"
1868 ranlib="${cross_prefix}${ranlib}"
1869 strip_default="${cross_prefix}${strip_default}"
1870
1871 sysinclude_default="${sysroot}/usr/include"
1872
1873 set_default cc nm pkg_config strip sysinclude
1874 enabled cross_compile || host_cc_default=$cc
1875 set_default host_cc
1876
1877 if ! $pkg_config --version >/dev/null 2>&1; then
1878     warn "$pkg_config not found, library detection may fail."
1879     pkg_config=false
1880 fi
1881
1882 exesuf() {
1883     case $1 in
1884         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1885     esac
1886 }
1887
1888 EXESUF=$(exesuf $target_os)
1889 HOSTEXESUF=$(exesuf $host_os)
1890
1891 # set temporary file name
1892 : ${TMPDIR:=$TEMPDIR}
1893 : ${TMPDIR:=$TMP}
1894 : ${TMPDIR:=/tmp}
1895
1896 if ! check_cmd mktemp -u XXXXXX; then
1897     # simple replacement for missing mktemp
1898     # NOT SAFE FOR GENERAL USE
1899     mktemp(){
1900         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1901     }
1902 fi
1903
1904 tmpfile(){
1905     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1906         (set -C; exec > $tmp) 2>/dev/null ||
1907         die "Unable to create temporary file in $TMPDIR."
1908     append TMPFILES $tmp
1909     eval $1=$tmp
1910 }
1911
1912 trap 'rm -f -- $TMPFILES' EXIT
1913
1914 tmpfile TMPC  .c
1915 tmpfile TMPE  $EXESUF
1916 tmpfile TMPH  .h
1917 tmpfile TMPO  .o
1918 tmpfile TMPS  .S
1919 tmpfile TMPV  .ver
1920 tmpfile TMPSH .sh
1921 tmpfile TMPASM .asm
1922
1923 unset -f mktemp
1924
1925 chmod +x $TMPE
1926
1927 # make sure we can execute files in $TMPDIR
1928 cat > $TMPSH 2>> $logfile <<EOF
1929 #! /bin/sh
1930 EOF
1931 chmod +x $TMPSH >> $logfile 2>&1
1932 if ! $TMPSH >> $logfile 2>&1; then
1933     cat <<EOF
1934 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1935 variable to another directory and make sure that it is not mounted noexec.
1936 EOF
1937     die "Sanity test failed."
1938 fi
1939
1940 filter_cflags=echo
1941 filter_cppflags=echo
1942 filter_asflags=echo
1943
1944 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1945     cc_type=llvm_gcc
1946     cc_version=__VERSION__
1947     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1948     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1949     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951     speed_cflags='-O3'
1952     size_cflags='-Os'
1953 elif $cc -v 2>&1 | grep -qi ^gcc; then
1954     cc_type=gcc
1955     cc_version=__VERSION__
1956     gcc_version=$($cc --version | head -n1)
1957     gcc_basever=$($cc -dumpversion)
1958     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1959     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1960     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1961     if ! $cc -dumpversion | grep -q '^2\.'; then
1962         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1963         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1964     fi
1965     speed_cflags='-O3'
1966     size_cflags='-Os'
1967 elif $cc --version 2>/dev/null | grep -q Intel; then
1968     cc_type=icc
1969     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1970     cc_ident=$($cc --version | head -n1)
1971     icc_version=$($cc -dumpversion)
1972     CC_DEPFLAGS='-MMD'
1973     AS_DEPFLAGS='-MMD'
1974     speed_cflags='-O3'
1975     size_cflags='-Os'
1976     noopt_cflags='-O1'
1977 elif $cc -v 2>&1 | grep -q xlc; then
1978     cc_type=xlc
1979     cc_version="AV_STRINGIFY(__IBMC__)"
1980     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1981     speed_cflags='-O5'
1982     size_cflags='-O5 -qcompact'
1983 elif $cc -V 2>/dev/null | grep -q Compaq; then
1984     cc_type=ccc
1985     cc_version="AV_STRINGIFY(__DECC_VER)"
1986     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1987     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1988     debuglevel=3
1989     add_ldflags -Wl,-z,now # calls to libots crash without this
1990     speed_cflags='-fast'
1991     size_cflags='-O1'
1992 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1993     test -d "$sysroot" || die "No valid sysroot specified."
1994     cc_type=armcc
1995     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1996     cc_ident=$($cc --vsn | head -n1)
1997     armcc_conf="$PWD/armcc.conf"
1998     $cc --arm_linux_configure                 \
1999         --arm_linux_config_file="$armcc_conf" \
2000         --configure_sysroot="$sysroot"        \
2001         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2002         die "Error creating armcc configuration file."
2003     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2004     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2005     as_default="${cross_prefix}gcc"
2006     CC_DEPFLAGS='-MMD'
2007     AS_DEPFLAGS='-MMD'
2008     speed_cflags='-O3'
2009     size_cflags='-Os'
2010     filter_asflags="filter_out -W${armcc_opt}*"
2011 elif $cc -version 2>/dev/null | grep -q TMS470; then
2012     cc_type=tms470
2013     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2014     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2015     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2016     CC_O='-fr=$(@D)'
2017     as_default="${cross_prefix}gcc"
2018     ld_default="${cross_prefix}gcc"
2019     TMPO=$(basename $TMPC .c).o
2020     append TMPFILES $TMPO
2021     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2022     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2023     AS_DEPFLAGS='-MMD'
2024     speed_cflags='-O3 -mf=5'
2025     size_cflags='-O3 -mf=2'
2026     filter_cflags=tms470_flags
2027     tms470_flags(){
2028         for flag; do
2029             case $flag in
2030                 -march=*|-mcpu=*)
2031                     case "${flag#*=}" in
2032                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2033                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2034                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2035                         armv6*|arm11*)          echo -mv=6   ;;
2036                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2037                                                 echo -mv=5e  ;;
2038                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2039                     esac
2040                     ;;
2041                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2042                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2043                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2044                 -msoft-float)   echo --float_support=vfplib       ;;
2045                 -O[0-3]|-mf=*)  echo $flag                        ;;
2046                 -g)             echo -g -mn                       ;;
2047                 -pds=*)         echo $flag                        ;;
2048             esac
2049         done
2050     }
2051 elif $cc -v 2>&1 | grep -q clang; then
2052     cc_type=clang
2053     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2054         cc_version=__clang_version__ || cc_version=__VERSION__
2055     cc_ident=$($cc --version | head -n1)
2056     CC_DEPFLAGS='-MMD'
2057     AS_DEPFLAGS='-MMD'
2058     speed_cflags='-O3'
2059     size_cflags='-Os'
2060 elif $cc -V 2>&1 | grep -q Sun; then
2061     cc_type=suncc
2062     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2063     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2064     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2065     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2066     add_ldflags -xc99
2067     speed_cflags='-O5'
2068     size_cflags='-O5 -xspace'
2069     filter_cflags=suncc_flags
2070     suncc_flags(){
2071         for flag; do
2072             case $flag in
2073                 -march=*|-mcpu=*)
2074                     case "${flag#*=}" in
2075                         native)                   echo -xtarget=native       ;;
2076                         v9|niagara)               echo -xarch=sparc          ;;
2077                         ultrasparc)               echo -xarch=sparcvis       ;;
2078                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2079                         i586|pentium)             echo -xchip=pentium        ;;
2080                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2081                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2082                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2083                         pentium4*)          echo -xtarget=pentium4           ;;
2084                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2085                         *-sse3)             echo -xarch=sse3                 ;;
2086                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2087                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2088                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2089                         k8|opteron|athlon64|athlon-fx)
2090                                                   echo -xarch=sse2a          ;;
2091                         athlon*)                  echo -xarch=pentium_proa   ;;
2092                     esac
2093                     ;;
2094                 -std=c99)             echo -xc99              ;;
2095                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2096                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2097                 -W*,*)                echo $flag              ;;
2098                 -f*-*|-W*)                                    ;;
2099                 *)                    echo $flag              ;;
2100             esac
2101         done
2102     }
2103 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2104     cc_type=pathscale
2105     cc_version=__PATHSCALE__
2106     cc_ident=$($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     filter_cflags='filter_out -Wdisabled-optimization'
2112 elif $cc -v 2>&1 | grep -q Open64; then
2113     cc_type=open64
2114     cc_version=__OPEN64__
2115     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2116     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2117     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2118     speed_cflags='-O2'
2119     size_cflags='-Os'
2120     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2121 fi
2122
2123 test -n "$cc_type" && enable $cc_type ||
2124     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2125
2126 : ${as_default:=$cc}
2127 : ${dep_cc_default:=$cc}
2128 : ${ld_default:=$cc}
2129 set_default ar as dep_cc ld
2130
2131 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2132 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2133
2134 add_cflags $extra_cflags
2135 add_asflags $extra_cflags
2136
2137 if test -n "$sysroot"; then
2138     case "$cc_type" in
2139         gcc|llvm_gcc|clang)
2140             add_cppflags --sysroot="$sysroot"
2141             add_ldflags --sysroot="$sysroot"
2142         ;;
2143         tms470)
2144             add_cppflags -I"$sysinclude"
2145             add_ldflags  --sysroot="$sysroot"
2146         ;;
2147     esac
2148 fi
2149
2150 if test "$cpu" = host; then
2151     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2152
2153     case "$cc_type" in
2154         gcc|llvm_gcc)
2155             check_native(){
2156                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2157                 sed -n "/cc1.*$1=/{
2158                             s/.*$1=\\([^ ]*\\).*/\\1/
2159                             p
2160                             q
2161                         }" $TMPE
2162             }
2163             cpu=$(check_native -march || check_native -mcpu)
2164         ;;
2165     esac
2166
2167     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2168 fi
2169
2170 # Deal with common $arch aliases
2171 case "$arch" in
2172     arm*)
2173         arch="arm"
2174     ;;
2175     mips|mipsel|IP*)
2176         arch="mips"
2177     ;;
2178     mips64*)
2179         arch="mips"
2180         subarch="mips64"
2181     ;;
2182     parisc|hppa)
2183         arch="parisc"
2184     ;;
2185     parisc64|hppa64)
2186         arch="parisc"
2187         subarch="parisc64"
2188     ;;
2189     "Power Macintosh"|ppc|powerpc)
2190         arch="ppc"
2191     ;;
2192     ppc64|powerpc64)
2193         arch="ppc"
2194         subarch="ppc64"
2195     ;;
2196     s390|s390x)
2197         arch="s390"
2198     ;;
2199     sh4|sh)
2200         arch="sh4"
2201     ;;
2202     sun4u|sparc64)
2203         arch="sparc"
2204         subarch="sparc64"
2205     ;;
2206     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2207         arch="x86"
2208     ;;
2209 esac
2210
2211 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2212 enable $arch
2213
2214 # Add processor-specific flags
2215 if test "$cpu" = generic; then
2216     : do nothing
2217 elif enabled ppc; then
2218
2219     case $(tolower $cpu) in
2220         601|ppc601|powerpc601)
2221             cpuflags="-mcpu=601"
2222             disable altivec
2223         ;;
2224         603*|ppc603*|powerpc603*)
2225             cpuflags="-mcpu=603"
2226             disable altivec
2227         ;;
2228         604*|ppc604*|powerpc604*)
2229             cpuflags="-mcpu=604"
2230             disable altivec
2231         ;;
2232         g3|75*|ppc75*|powerpc75*)
2233             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2234             disable altivec
2235         ;;
2236         g4|745*|ppc745*|powerpc745*)
2237             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2238         ;;
2239         74*|ppc74*|powerpc74*)
2240             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2241         ;;
2242         g5|970|ppc970|powerpc970|power4*)
2243             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2244         ;;
2245         cell)
2246             cpuflags="-mcpu=cell"
2247             enable ldbrx
2248         ;;
2249         e500v2)
2250             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2251             disable altivec
2252         ;;
2253         e500)
2254             cpuflags="-mcpu=8540 -mhard-float"
2255             disable altivec
2256         ;;
2257     esac
2258
2259 elif enabled x86; then
2260
2261     case $cpu in
2262         i[345]86|pentium)
2263             cpuflags="-march=$cpu"
2264             disable mmx
2265         ;;
2266         # targets that do NOT support conditional mov (cmov)
2267         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2268             cpuflags="-march=$cpu"
2269             disable cmov
2270         ;;
2271         # targets that do support conditional mov (cmov)
2272         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2273             cpuflags="-march=$cpu"
2274             enable cmov
2275             enable fast_cmov
2276         ;;
2277         # targets that do support conditional mov but on which it's slow
2278         pentium4|pentium4m|prescott|nocona)
2279             cpuflags="-march=$cpu"
2280             enable cmov
2281             disable fast_cmov
2282         ;;
2283     esac
2284
2285 elif enabled sparc; then
2286
2287     case $cpu in
2288         niagara)
2289             cpuflags="-mcpu=$cpu"
2290             disable vis
2291         ;;
2292         sparc64)
2293             cpuflags="-mcpu=v9"
2294         ;;
2295     esac
2296
2297 elif enabled arm; then
2298
2299     case $cpu in
2300         armv*)
2301             cpuflags="-march=$cpu"
2302             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2303         ;;
2304         *)
2305             cpuflags="-mcpu=$cpu"
2306             case $cpu in
2307                 cortex-a*)                               subarch=armv7a  ;;
2308                 cortex-r*)                               subarch=armv7r  ;;
2309                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2310                 arm11*)                                  subarch=armv6   ;;
2311                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2312                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2313             esac
2314         ;;
2315     esac
2316
2317 elif enabled alpha; then
2318
2319     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2320
2321 elif enabled bfin; then
2322
2323     cpuflags="-mcpu=$cpu"
2324
2325 elif enabled mips; then
2326
2327     cpuflags="-march=$cpu"
2328
2329 elif enabled avr32; then
2330
2331     case $cpu in
2332         ap7[02]0[0-2])
2333             subarch="avr32_ap"
2334             cpuflags="-mpart=$cpu"
2335         ;;
2336         ap)
2337             subarch="avr32_ap"
2338             cpuflags="-march=$cpu"
2339         ;;
2340         uc3[ab]*)
2341             subarch="avr32_uc"
2342             cpuflags="-mcpu=$cpu"
2343         ;;
2344         uc)
2345             subarch="avr32_uc"
2346             cpuflags="-march=$cpu"
2347         ;;
2348     esac
2349
2350 fi
2351
2352 add_cflags $cpuflags
2353 add_asflags $cpuflags
2354
2355 # compiler sanity check
2356 check_exec <<EOF
2357 int main(void){ return 0; }
2358 EOF
2359 if test "$?" != 0; then
2360     echo "$cc is unable to create an executable file."
2361     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2362         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2363         echo "Only do this if you know what cross compiling means."
2364     fi
2365     die "C compiler test failed."
2366 fi
2367
2368 add_cppflags -D_ISOC99_SOURCE
2369 check_cflags -std=c99
2370 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2371 #include <stdlib.h>
2372 EOF
2373 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2374 #include <stdlib.h>
2375 EOF
2376
2377 check_host_cflags -std=c99
2378 check_host_cflags -Wall
2379
2380 case "$arch" in
2381     alpha|ia64|mips|parisc|sparc)
2382         spic=$shared
2383     ;;
2384     x86)
2385         subarch="x86_32"
2386         check_cc <<EOF && subarch="x86_64"
2387         int test[(int)sizeof(char*) - 7];
2388 EOF
2389         if test "$subarch" = "x86_64"; then
2390             spic=$shared
2391         fi
2392     ;;
2393 esac
2394
2395 enable $subarch
2396 enabled spic && enable pic
2397
2398 # OS specific
2399 case $target_os in
2400     haiku)
2401         prefix_default="/boot/common"
2402         network_extralibs="-lnetwork"
2403         host_libs=
2404         ;;
2405     sunos)
2406         FFSERVERLDFLAGS=""
2407         SHFLAGS='-shared -Wl,-h,$$(@F)'
2408         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2409         network_extralibs="-lsocket -lnsl"
2410         add_cppflags -D__EXTENSIONS__
2411         nm_opts='-P -g'
2412         ;;
2413     netbsd)
2414         disable symver
2415         oss_indev_extralibs="-lossaudio"
2416         oss_outdev_extralibs="-lossaudio"
2417         ;;
2418     openbsd)
2419         enable malloc_aligned
2420         # On OpenBSD 4.5. the compiler does not use PIC unless
2421         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2422         # however the generated executable will not do anything
2423         # (simply quits with exit-code 1, no crash, no output).
2424         # Thus explicitly enable PIC here.
2425         enable pic
2426         disable symver
2427         SHFLAGS='-shared'
2428         oss_indev_extralibs="-lossaudio"
2429         oss_outdev_extralibs="-lossaudio"
2430         ;;
2431     dragonfly)
2432         enable malloc_aligned
2433         disable symver
2434         ;;
2435     freebsd)
2436         enable malloc_aligned
2437         ;;
2438     bsd/os)
2439         add_extralibs -lpoll -lgnugetopt
2440         strip="strip -d"
2441         ;;
2442     darwin)
2443         enable malloc_aligned
2444         gas="gas-preprocessor.pl $cc"
2445         enabled ppc && add_asflags -force_cpusubtype_ALL
2446         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2447         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2448         strip="${strip} -x"
2449         add_ldflags -Wl,-dynamic,-search_paths_first
2450         SLIBSUF=".dylib"
2451         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2452         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2453         FFSERVERLDFLAGS=-Wl,-bind_at_load
2454         objformat="macho"
2455         enabled x86_64 && objformat="macho64"
2456         enabled_any pic shared ||
2457             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2458         ;;
2459     mingw32*)
2460         if test $target_os = "mingw32ce"; then
2461             disable network
2462         else
2463             target_os=mingw32
2464         fi
2465         LIBTARGET=i386
2466         if enabled x86_64; then
2467             enable malloc_aligned
2468             LIBTARGET=x64
2469         elif enabled arm; then
2470             LIBTARGET=arm-wince
2471         fi
2472         shlibdir_default="$bindir_default"
2473         SLIBPREF=""
2474         SLIBSUF=".dll"
2475         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2476         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2477         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2478         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2479         SLIB_INSTALL_LINKS=
2480         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2481         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2482         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'
2483         objformat="win32"
2484         enable dos_paths
2485         check_cflags -fno-common
2486         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2487                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2488                 die "ERROR: MinGW runtime version must be >= 3.15."
2489         add_cppflags -U__STRICT_ANSI__
2490         ;;
2491     cygwin*)
2492         target_os=cygwin
2493         shlibdir_default="$bindir_default"
2494         SLIBPREF="cyg"
2495         SLIBSUF=".dll"
2496         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2497         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2498         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2499         objformat="win32"
2500         enable dos_paths
2501         check_cflags -fno-common
2502         add_cppflags -U__STRICT_ANSI__
2503         ;;
2504     *-dos|freedos|opendos)
2505         network_extralibs="-lsocket"
2506         objformat="coff"
2507         enable dos_paths
2508         add_cppflags -U__STRICT_ANSI__
2509         ;;
2510     linux)
2511         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2512         enable dv1394
2513         ;;
2514     irix*)
2515         target_os=irix
2516         ranlib="echo ignoring ranlib"
2517         ;;
2518     os/2*)
2519         strip="lxlite -CS"
2520         ln_s="cp -f"
2521         objformat="aout"
2522         add_cppflags -D_GNU_SOURCE
2523         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2524         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2525         FFSERVERLDFLAGS=""
2526         LIBSUF="_s.a"
2527         SLIBPREF=""
2528         SLIBSUF=".dll"
2529         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2530         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2531         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2532           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2533           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2534           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2535           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2536           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2537         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2538           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2539         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2540         enable dos_paths
2541         ;;
2542     gnu/kfreebsd)
2543         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2544         ;;
2545     gnu)
2546         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2547         ;;
2548     qnx)
2549         add_cppflags -D_QNX_SOURCE
2550         network_extralibs="-lsocket"
2551         ;;
2552     symbian)
2553         SLIBSUF=".dll"
2554         enable dos_paths
2555         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2556         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2557         add_ldflags -Wl,--target1-abs,--no-undefined \
2558                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2559                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2560         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2561                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2562                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2563         ;;
2564     none)
2565         ;;
2566     *)
2567         die "Unknown OS '$target_os'."
2568         ;;
2569 esac
2570
2571 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2572
2573 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2574
2575 set_default $PATHS_LIST
2576
2577 # we need to build at least one lib type
2578 if ! enabled_any static shared; then
2579     cat <<EOF
2580 At least one library type must be built.
2581 Specify --enable-static to build the static libraries or --enable-shared to
2582 build the shared libraries as well. To only build the shared libraries specify
2583 --disable-static in addition to --enable-shared.
2584 EOF
2585     exit 1;
2586 fi
2587
2588 die_license_disabled() {
2589     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2590 }
2591
2592 die_license_disabled gpl libx264
2593 die_license_disabled gpl libxavs
2594 die_license_disabled gpl libxvid
2595 die_license_disabled gpl x11grab
2596
2597 die_license_disabled nonfree libfaac
2598
2599 die_license_disabled version3 libopencore_amrnb
2600 die_license_disabled version3 libopencore_amrwb
2601 die_license_disabled version3 libvo_aacenc
2602 die_license_disabled version3 libvo_amrwbenc
2603
2604 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2605
2606 disabled optimizations || check_cflags -fomit-frame-pointer
2607
2608 enable_pic() {
2609     enable pic
2610     add_cppflags -DPIC
2611     add_cflags   -fPIC
2612     add_asflags  -fPIC
2613 }
2614
2615 enabled pic && enable_pic
2616
2617 check_cc <<EOF || die "Symbol mangling check failed."
2618 int ff_extern;
2619 EOF
2620 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2621 extern_prefix=${sym%%ff_extern*}
2622
2623 check_cc <<EOF && enable inline_asm
2624 void foo(void) { __asm__ volatile ("" ::); }
2625 EOF
2626
2627 _restrict=
2628 for restrict_keyword in restrict __restrict__ __restrict; do
2629     check_cc <<EOF && _restrict=$restrict_keyword && break
2630 void foo(char * $restrict_keyword p);
2631 EOF
2632 done
2633
2634 check_cc <<EOF && enable attribute_packed
2635 struct { int x; } __attribute__((packed)) x;
2636 EOF
2637
2638 check_cc <<EOF && enable attribute_may_alias
2639 union { int x; } __attribute__((may_alias)) x;
2640 EOF
2641
2642 check_cc <<EOF || die "endian test failed"
2643 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2644 EOF
2645 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2646
2647 if enabled alpha; then
2648
2649     check_cflags -mieee
2650
2651 elif enabled arm; then
2652
2653     enabled thumb && check_cflags -mthumb || check_cflags -marm
2654     nogas=die
2655
2656     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2657         enable vfp_args
2658     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2659         case "${cross_prefix:-$cc}" in
2660             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2661             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2662 __asm__ (".eabi_attribute 28, 1");
2663 int main(void) { return 0; }
2664 EOF
2665         esac
2666         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2667     fi
2668
2669     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2670     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2671     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2672     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2673     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2674     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2675     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2676
2677     enabled_all armv6t2 shared !pic && enable_pic
2678
2679 elif enabled mips; then
2680
2681     check_asm loongson '"dmult.g $1, $2, $3"'
2682     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2683
2684 elif enabled ppc; then
2685
2686     enable local_aligned_8 local_aligned_16
2687
2688     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2689     check_asm ibm_asm   '"add 0, 0, 0"'
2690     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2691     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2692
2693     # AltiVec flags: The FSF version of GCC differs from the Apple version
2694     if enabled altivec; then
2695         nogas=warn
2696         check_cflags -maltivec -mabi=altivec &&
2697         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2698         check_cflags -faltivec
2699
2700         # check if our compiler supports Motorola AltiVec C API
2701         check_cc <<EOF || disable altivec
2702 $inc_altivec_h
2703 int main(void) {
2704     vector signed int v1, v2, v3;
2705     v1 = vec_add(v2,v3);
2706     return 0;
2707 }
2708 EOF
2709
2710         # check if our compiler supports braces for vector declarations
2711         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2712 $inc_altivec_h
2713 int main (void) { (vector int) {1}; return 0; }
2714 EOF
2715     fi
2716
2717 elif enabled sparc; then
2718
2719     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2720         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2721
2722 elif enabled x86; then
2723
2724     enable local_aligned_8 local_aligned_16
2725
2726     # check whether EBP is available on x86
2727     # As 'i' is stored on the stack, this program will crash
2728     # if the base pointer is used to access it because the
2729     # base pointer is cleared in the inline assembly code.
2730     check_exec_crash <<EOF && enable ebp_available
2731     volatile int i=0;
2732     __asm__ volatile (
2733         "xorl %%ebp, %%ebp"
2734     ::: "%ebp");
2735     return i;
2736 EOF
2737
2738     # check whether EBX is available on x86
2739     check_asm ebx_available '""::"b"(0)' &&
2740         check_asm ebx_available '"":::"%ebx"'
2741
2742     # check whether xmm clobbers are supported
2743     check_asm xmm_clobbers '"":::"%xmm0"'
2744
2745     # check whether binutils is new enough to compile SSSE3/MMX2
2746     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2747     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2748
2749     check_asm bswap '"bswap %%eax" ::: "%eax"'
2750
2751     if ! disabled_any asm mmx yasm; then
2752         if check_cmd $yasmexe --version; then
2753             enabled x86_64 && yasm_extra="-m amd64"
2754             yasm_debug="-g dwarf2"
2755         elif check_cmd nasm -v; then
2756             yasmexe=nasm
2757             yasm_debug="-g -F dwarf"
2758             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2759         fi
2760
2761         YASMFLAGS="-f $objformat $yasm_extra"
2762         enabled pic               && append YASMFLAGS "-DPIC"
2763         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2764         case "$objformat" in
2765             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2766         esac
2767
2768         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2769             die "yasm not found, use --disable-yasm for a crippled build"
2770         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2771     fi
2772
2773     case "$cpu" in
2774         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2775             disable fast_clz
2776         ;;
2777     esac
2778
2779 fi
2780
2781 if enabled asm; then
2782     as=${gas:=$as}
2783     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2784         $nogas "GNU assembler not found, install gas-preprocessor"
2785 fi
2786
2787 check_ldflags -Wl,--as-needed
2788
2789 if check_func dlopen; then
2790     ldl=
2791 elif check_func dlopen -ldl; then
2792     ldl=-ldl
2793 fi
2794
2795 if enabled network; then
2796     check_type "sys/types.h sys/socket.h" socklen_t
2797     check_type netdb.h "struct addrinfo"
2798     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2799     check_type netinet/in.h "struct sockaddr_in6"
2800     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2801     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2802     # Prefer arpa/inet.h over winsock2
2803     if check_header arpa/inet.h ; then
2804         check_func closesocket
2805     elif check_header winsock2.h ; then
2806         check_func_headers winsock2.h closesocket -lws2 && \
2807             network_extralibs="-lws2" || \
2808         { check_func_headers winsock2.h closesocket -lws2_32 && \
2809             network_extralibs="-lws2_32"; }
2810         check_type ws2tcpip.h socklen_t
2811         check_type ws2tcpip.h "struct addrinfo"
2812         check_type ws2tcpip.h "struct ipv6_mreq"
2813         check_type ws2tcpip.h "struct sockaddr_in6"
2814         check_type ws2tcpip.h "struct sockaddr_storage"
2815         check_struct winsock2.h "struct sockaddr" sa_len
2816     else
2817         disable network
2818     fi
2819 fi
2820
2821 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2822 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2823
2824 check_func  fcntl
2825 check_func  fork
2826 check_func  getaddrinfo $network_extralibs
2827 check_func  gethrtime
2828 check_func  getrusage
2829 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2830 check_func  inet_aton $network_extralibs
2831 check_func  isatty
2832 check_func  localtime_r
2833 check_func  ${malloc_prefix}memalign            && enable memalign
2834 check_func  mkstemp
2835 check_func  mmap
2836 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2837 check_func  setrlimit
2838 check_func  strerror_r
2839 check_func  strptime
2840 check_func  strtok_r
2841 check_func_headers conio.h kbhit
2842 check_func_headers io.h setmode
2843 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2844 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2845 check_func_headers windows.h GetProcessTimes
2846 check_func_headers windows.h MapViewOfFile
2847 check_func_headers windows.h VirtualAlloc
2848
2849 check_header dlfcn.h
2850 check_header dxva2api.h
2851 check_header libcrystalhd/libcrystalhd_if.h
2852 check_header malloc.h
2853 check_header poll.h
2854 check_header sys/mman.h
2855 check_header sys/resource.h
2856 check_header sys/select.h
2857 check_header termios.h
2858 check_header vdpau/vdpau.h
2859 check_header vdpau/vdpau_x11.h
2860 check_header X11/extensions/XvMClib.h
2861
2862 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2863
2864 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2865 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2866
2867 # check for some common methods of building with pthread support
2868 # do this before the optional library checks as some of them require pthreads
2869 if ! disabled pthreads && ! enabled w32threads; then
2870     enable pthreads
2871     if check_func pthread_create; then
2872         :
2873     elif check_func pthread_create -pthread; then
2874         add_cflags -pthread
2875         add_extralibs -pthread
2876     elif check_func pthread_create -pthreads; then
2877         add_cflags -pthreads
2878         add_extralibs -pthreads
2879     elif check_func pthread_create -lpthreadGC2; then
2880         add_extralibs -lpthreadGC2
2881     elif ! check_lib pthread.h pthread_create -lpthread; then
2882         disable pthreads
2883     fi
2884 fi
2885
2886 for thread in $THREADS_LIST; do
2887     if enabled $thread; then
2888         test -n "$thread_type" &&
2889             die "ERROR: Only one thread type must be selected." ||
2890             thread_type="$thread"
2891     fi
2892 done
2893
2894 check_lib math.h sin -lm && LIBM="-lm"
2895 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2896 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2897
2898 check_mathfunc exp2
2899 check_mathfunc exp2f
2900 check_mathfunc llrint
2901 check_mathfunc llrintf
2902 check_mathfunc log2
2903 check_mathfunc log2f
2904 check_mathfunc lrint
2905 check_mathfunc lrintf
2906 check_mathfunc round
2907 check_mathfunc roundf
2908 check_mathfunc trunc
2909 check_mathfunc truncf
2910
2911 # these are off by default, so fail if requested and not available
2912 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2913 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2914 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2915 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2916 enabled libdirac   && require_pkg_config dirac                          \
2917     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2918     "dirac_decoder_init dirac_encoder_init"
2919 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2920 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2921 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2922 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2923 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2924 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2925 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2926 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2927 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2928 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2929 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2930 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2931 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2932 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2933 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2934 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2935 enabled libvpx     && {
2936     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2937                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2938     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2939                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2940 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2941                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2942                         die "ERROR: libx264 version must be >= 0.115."; }
2943 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2944 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2945 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2946                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2947                         die "ERROR: openal not found"; } &&
2948                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2949                         die "ERROR: openal version must be 1.1 or compatible"; }
2950 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2951
2952 SDL_CONFIG="${cross_prefix}sdl-config"
2953 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2954     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2955     enable sdl &&
2956     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2957 else
2958   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2959     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2960     sdl_libs=$("${SDL_CONFIG}" --libs)
2961     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2962     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2963     enable sdl &&
2964     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2965   fi
2966 fi
2967 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2968
2969 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2970
2971 check_header linux/fb.h
2972 check_header linux/videodev.h
2973 check_header linux/videodev2.h
2974 check_header sys/videoio.h
2975
2976 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2977 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2978 # w32api 3.12 had it defined wrong
2979 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2980
2981 check_type "dshow.h" IBaseFilter
2982
2983 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2984 { check_header dev/bktr/ioctl_meteor.h &&
2985   check_header dev/bktr/ioctl_bt848.h; } ||
2986 { check_header machine/ioctl_meteor.h &&
2987   check_header machine/ioctl_bt848.h; } ||
2988 { check_header dev/video/meteor/ioctl_meteor.h &&
2989   check_header dev/video/bktr/ioctl_bt848.h; } ||
2990 check_header dev/ic/bt8xx.h
2991
2992 check_header sndio.h
2993 if check_struct sys/soundcard.h audio_buf_info bytes; then
2994     enable_safe sys/soundcard.h
2995 else
2996     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2997     #include <sys/soundcard.h>
2998     audio_buf_info abc;
2999 EOF
3000 fi
3001 check_header soundcard.h
3002
3003 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3004
3005 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3006
3007 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3008
3009 enabled x11grab                         &&
3010 check_header X11/Xlib.h                 &&
3011 check_header X11/extensions/XShm.h      &&
3012 check_header X11/extensions/Xfixes.h    &&
3013 check_func XOpenDisplay -lX11           &&
3014 check_func XShmCreateImage -lX11 -lXext &&
3015 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3016
3017 if ! disabled vaapi; then
3018     check_lib va/va.h vaInitialize -lva && {
3019         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3020         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3021     } || disable vaapi
3022 fi
3023
3024 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3025 check_cpp_condition \
3026     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3027     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3028       disable vdpau; }
3029 fi
3030
3031 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3032
3033 # add some useful compiler flags if supported
3034 check_cflags -Wdeclaration-after-statement
3035 check_cflags -Wall
3036 check_cflags -Wno-parentheses
3037 check_cflags -Wno-switch
3038 check_cflags -Wno-format-zero-length
3039 check_cflags -Wdisabled-optimization
3040 check_cflags -Wpointer-arith
3041 check_cflags -Wredundant-decls
3042 check_cflags -Wno-pointer-sign
3043 check_cflags -Wcast-qual
3044 check_cflags -Wwrite-strings
3045 check_cflags -Wtype-limits
3046 check_cflags -Wundef
3047 check_cflags -Wmissing-prototypes
3048 check_cflags -Wno-pointer-to-int-cast
3049 enabled extra_warnings && check_cflags -Winline
3050
3051 # add some linker flags
3052 check_ldflags -Wl,--warn-common
3053 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3054 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3055
3056 echo "X{};" > $TMPV
3057 if test_ldflags -Wl,--version-script,$TMPV; then
3058     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3059     check_cc <<EOF && enable symver_asm_label
3060 void ff_foo(void) __asm__ ("av_foo@VERSION");
3061 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3062 EOF
3063     check_cc <<EOF && enable symver_gnu_asm
3064 __asm__(".symver ff_foo,av_foo@VERSION");
3065 void ff_foo(void) {}
3066 EOF
3067 fi
3068
3069 if [ -n "$optflags" ]; then
3070     add_cflags $optflags
3071 elif enabled small; then
3072     add_cflags $size_cflags
3073 elif enabled optimizations; then
3074     add_cflags $speed_cflags
3075 else
3076     add_cflags $noopt_cflags
3077 fi
3078 check_cflags -fno-math-errno
3079 check_cflags -fno-signed-zeros
3080
3081 if enabled icc; then
3082     # Just warnings, no remarks
3083     check_cflags -w1
3084     # -wd: Disable following warnings
3085     # 144, 167, 556: -Wno-pointer-sign
3086     # 1292: attribute "foo" ignored
3087     # 10006: ignoring unknown option -fno-signed-zeros
3088     # 10148: ignoring unknown option -Wno-parentheses
3089     # 10156: ignoring option '-W'; no argument required
3090     check_cflags -wd144,167,556,1292,10006,10148,10156
3091     # 11030: Warning unknown option --as-needed
3092     # 10156: ignoring option '-export'; no argument required
3093     check_ldflags -wd10156,11030
3094     # Allow to compile with optimizations
3095     check_ldflags -march=$cpu
3096     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3097     enable ebp_available
3098     if enabled x86_32; then
3099         test ${icc_version%%.*} -ge 11 && \
3100             check_cflags -falign-stack=maintain-16-byte || \
3101             disable aligned_stack
3102     fi
3103 elif enabled ccc; then
3104     # disable some annoying warnings
3105     add_cflags -msg_disable cvtu32to64
3106     add_cflags -msg_disable embedcomment
3107     add_cflags -msg_disable needconstext
3108     add_cflags -msg_disable nomainieee
3109     add_cflags -msg_disable ptrmismatch1
3110     add_cflags -msg_disable unreachcode
3111 elif enabled gcc; then
3112     check_cflags -fno-tree-vectorize
3113     check_cflags -Werror=implicit-function-declaration
3114     check_cflags -Werror=missing-prototypes
3115 elif enabled llvm_gcc; then
3116     check_cflags -mllvm -stack-alignment=16
3117 elif enabled clang; then
3118     check_cflags -mllvm -stack-alignment=16
3119     check_cflags -Qunused-arguments
3120 elif enabled armcc; then
3121     # 2523: use of inline assembler is deprecated
3122     add_cflags -W${armcc_opt},--diag_suppress=2523
3123     add_cflags -W${armcc_opt},--diag_suppress=1207
3124     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3125     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3126     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3127     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3128 elif enabled tms470; then
3129     add_cflags -pds=824 -pds=837
3130 elif enabled pathscale; then
3131     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3132 fi
3133
3134 enabled_any $THREADS_LIST      && enable threads
3135
3136 check_deps $CONFIG_LIST       \
3137            $CONFIG_EXTRA      \
3138            $HAVE_LIST         \
3139            $DECODER_LIST      \
3140            $ENCODER_LIST      \
3141            $HWACCEL_LIST      \
3142            $PARSER_LIST       \
3143            $BSF_LIST          \
3144            $DEMUXER_LIST      \
3145            $MUXER_LIST        \
3146            $FILTER_LIST       \
3147            $INDEV_LIST        \
3148            $OUTDEV_LIST       \
3149            $PROTOCOL_LIST     \
3150            $ACODEC_TESTS      \
3151            $VCODEC_TESTS      \
3152            $LAVF_TESTS        \
3153            $LAVFI_TESTS       \
3154            $SEEK_TESTS        \
3155
3156 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3157
3158 if test $target_os == "haiku"; then
3159     disable memalign
3160     disable posix_memalign
3161 fi
3162
3163 ! enabled_any memalign posix_memalign malloc_aligned &&
3164     enabled_any $need_memalign && enable memalign_hack
3165
3166 echo "install prefix            $prefix"
3167 echo "source path               $source_path"
3168 echo "C compiler                $cc"
3169 echo "ARCH                      $arch ($cpu)"
3170 if test "$build_suffix" != ""; then
3171     echo "build suffix              $build_suffix"
3172 fi
3173 if test "$extra_version" != ""; then
3174     echo "version string suffix     $extra_version"
3175 fi
3176 echo "big-endian                ${bigendian-no}"
3177 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3178 if enabled x86; then
3179     echo "${yasmexe}                      ${yasm-no}"
3180     echo "MMX enabled               ${mmx-no}"
3181     echo "MMX2 enabled              ${mmx2-no}"
3182     echo "3DNow! enabled            ${amd3dnow-no}"
3183     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3184     echo "SSE enabled               ${sse-no}"
3185     echo "SSSE3 enabled             ${ssse3-no}"
3186     echo "AVX enabled               ${avx-no}"
3187     echo "CMOV enabled              ${cmov-no}"
3188     echo "CMOV is fast              ${fast_cmov-no}"
3189     echo "EBX available             ${ebx_available-no}"
3190     echo "EBP available             ${ebp_available-no}"
3191 fi
3192 if enabled arm; then
3193     echo "ARMv5TE enabled           ${armv5te-no}"
3194     echo "ARMv6 enabled             ${armv6-no}"
3195     echo "ARMv6T2 enabled           ${armv6t2-no}"
3196     echo "ARM VFP enabled           ${armvfp-no}"
3197     echo "IWMMXT enabled            ${iwmmxt-no}"
3198     echo "NEON enabled              ${neon-no}"
3199 fi
3200 if enabled mips; then
3201     echo "MMI enabled               ${mmi-no}"
3202 fi
3203 if enabled ppc; then
3204     echo "AltiVec enabled           ${altivec-no}"
3205     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3206     echo "dcbzl available           ${dcbzl-no}"
3207 fi
3208 if enabled sparc; then
3209     echo "VIS enabled               ${vis-no}"
3210 fi
3211 echo "debug symbols             ${debug-no}"
3212 echo "strip symbols             ${stripping-no}"
3213 echo "optimize for size         ${small-no}"
3214 echo "optimizations             ${optimizations-no}"
3215 echo "static                    ${static-no}"
3216 echo "shared                    ${shared-no}"
3217 echo "postprocessing support    ${postproc-no}"
3218 echo "new filter support        ${avfilter-no}"
3219 echo "network support           ${network-no}"
3220 echo "threading support         ${thread_type-no}"
3221 echo "SDL support               ${sdl-no}"
3222 echo "Sun medialib support      ${mlib-no}"
3223 echo "libdxva2 enabled          ${dxva2-no}"
3224 echo "libva enabled             ${vaapi-no}"
3225 echo "libvdpau enabled          ${vdpau-no}"
3226 echo "AVISynth enabled          ${avisynth-no}"
3227 echo "libcelt enabled           ${libcelt-no}"
3228 echo "frei0r enabled            ${frei0r-no}"
3229 echo "libdc1394 support         ${libdc1394-no}"
3230 echo "libdirac enabled          ${libdirac-no}"
3231 echo "libfaac enabled           ${libfaac-no}"
3232 echo "libgsm enabled            ${libgsm-no}"
3233 echo "libmp3lame enabled        ${libmp3lame-no}"
3234 echo "libnut enabled            ${libnut-no}"
3235 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3236 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3237 echo "libopencv support         ${libopencv-no}"
3238 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3239 echo "librtmp enabled           ${librtmp-no}"
3240 echo "libschroedinger enabled   ${libschroedinger-no}"
3241 echo "libspeex enabled          ${libspeex-no}"
3242 echo "libtheora enabled         ${libtheora-no}"
3243 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3244 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3245 echo "libvorbis enabled         ${libvorbis-no}"
3246 echo "libvpx enabled            ${libvpx-no}"
3247 echo "libx264 enabled           ${libx264-no}"
3248 echo "libxavs enabled           ${libxavs-no}"
3249 echo "libxvid enabled           ${libxvid-no}"
3250 echo "openal enabled            ${openal-no}"
3251 echo "zlib enabled              ${zlib-no}"
3252 echo "bzlib enabled             ${bzlib-no}"
3253 echo
3254
3255 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3256     echo "Enabled ${type}s:"
3257     eval list=\$$(toupper $type)_LIST
3258     print_enabled '_*' $list | sort | pr -r -3 -t
3259     echo
3260 done
3261
3262 license="LGPL version 2.1 or later"
3263 if enabled nonfree; then
3264     license="nonfree and unredistributable"
3265 elif enabled gplv3; then
3266     license="GPL version 3 or later"
3267 elif enabled lgplv3; then
3268     license="LGPL version 3 or later"
3269 elif enabled gpl; then
3270     license="GPL version 2 or later"
3271 fi
3272
3273 echo "License: $license"
3274
3275 echo "Creating config.mak and config.h..."
3276
3277 test -e Makefile || $ln_s "$source_path/Makefile" .
3278
3279 enabled stripping || strip="echo skipping strip"
3280
3281 config_files="$TMPH config.mak"
3282
3283 cat > config.mak <<EOF
3284 # Automatically generated by configure - do not modify!
3285 ifndef FFMPEG_CONFIG_MAK
3286 FFMPEG_CONFIG_MAK=1
3287 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3288 prefix=$prefix
3289 LIBDIR=\$(DESTDIR)$libdir
3290 SHLIBDIR=\$(DESTDIR)$shlibdir
3291 INCDIR=\$(DESTDIR)$incdir
3292 BINDIR=\$(DESTDIR)$bindir
3293 DATADIR=\$(DESTDIR)$datadir
3294 MANDIR=\$(DESTDIR)$mandir
3295 SRC_PATH=$source_path
3296 ifndef MAIN_MAKEFILE
3297 SRC_PATH:=\$(SRC_PATH:.%=..%)
3298 endif
3299 CC_IDENT=$cc_ident
3300 ARCH=$arch
3301 CC=$cc
3302 AS=$as
3303 LD=$ld
3304 DEPCC=$dep_cc
3305 YASM=$yasmexe
3306 YASMDEP=$yasmexe
3307 AR=$ar
3308 RANLIB=$ranlib
3309 CP=cp -p
3310 LN_S=$ln_s
3311 STRIP=$strip
3312 CPPFLAGS=$CPPFLAGS
3313 CFLAGS=$CFLAGS
3314 ASFLAGS=$ASFLAGS
3315 AS_O=$CC_O
3316 CC_O=$CC_O
3317 LDFLAGS=$LDFLAGS
3318 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3319 SHFLAGS=$SHFLAGS
3320 YASMFLAGS=$YASMFLAGS
3321 BUILDSUF=$build_suffix
3322 FULLNAME=$FULLNAME
3323 LIBPREF=$LIBPREF
3324 LIBSUF=$LIBSUF
3325 LIBNAME=$LIBNAME
3326 SLIBPREF=$SLIBPREF
3327 SLIBSUF=$SLIBSUF
3328 EXESUF=$EXESUF
3329 EXTRA_VERSION=$extra_version
3330 DEPFLAGS=$DEPFLAGS
3331 CCDEP=$CCDEP
3332 ASDEP=$ASDEP
3333 CC_DEPFLAGS=$CC_DEPFLAGS
3334 AS_DEPFLAGS=$AS_DEPFLAGS
3335 HOSTCC=$host_cc
3336 HOSTCFLAGS=$host_cflags
3337 HOSTEXESUF=$HOSTEXESUF
3338 HOSTLDFLAGS=$host_ldflags
3339 HOSTLIBS=$host_libs
3340 TARGET_EXEC=$target_exec
3341 TARGET_PATH=$target_path
3342 SDL_LIBS=$sdl_libs
3343 SDL_CFLAGS=$sdl_cflags
3344 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3345 EXTRALIBS=$extralibs
3346 INSTALL=$install
3347 LIBTARGET=${LIBTARGET}
3348 SLIBNAME=${SLIBNAME}
3349 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3350 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3351 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3352 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3353 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3354 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3355 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3356 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3357 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3358 EOF
3359
3360 get_version(){
3361     name=$1
3362     file=$source_path/$2
3363     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3364     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3365     lcname=$(tolower $name)
3366     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3367     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3368 }
3369
3370 get_version LIBSWSCALE  libswscale/swscale.h
3371 get_version LIBPOSTPROC libpostproc/postprocess.h
3372 get_version LIBAVCODEC  libavcodec/version.h
3373 get_version LIBAVDEVICE libavdevice/avdevice.h
3374 get_version LIBAVFORMAT libavformat/version.h
3375 get_version LIBAVUTIL   libavutil/avutil.h
3376 get_version LIBAVFILTER libavfilter/avfilter.h
3377
3378 cat > $TMPH <<EOF
3379 /* Automatically generated by configure - do not modify! */
3380 #ifndef FFMPEG_CONFIG_H
3381 #define FFMPEG_CONFIG_H
3382 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3383 #define FFMPEG_LICENSE "$(c_escape $license)"
3384 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3385 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3386 #define CC_TYPE "$cc_type"
3387 #define CC_VERSION $cc_version
3388 #define restrict $_restrict
3389 #define EXTERN_PREFIX "${extern_prefix}"
3390 #define EXTERN_ASM ${extern_prefix}
3391 #define SLIBSUF "$SLIBSUF"
3392 EOF
3393
3394 test -n "$malloc_prefix" &&
3395     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3396
3397 if enabled small || disabled optimizations; then
3398     echo "#undef  av_always_inline"  >> $TMPH
3399     if enabled small; then
3400         echo "#define av_always_inline inline"  >> $TMPH
3401     else
3402         echo "#define av_always_inline av_unused"  >> $TMPH
3403     fi
3404 fi
3405
3406 if enabled yasm; then
3407     append config_files $TMPASM
3408     printf '' >$TMPASM
3409 fi
3410
3411 print_config ARCH_   "$config_files" $ARCH_LIST
3412 print_config HAVE_   "$config_files" $HAVE_LIST
3413 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3414                                      $CONFIG_EXTRA      \
3415                                      $DECODER_LIST      \
3416                                      $ENCODER_LIST      \
3417                                      $HWACCEL_LIST      \
3418                                      $PARSER_LIST       \
3419                                      $BSF_LIST          \
3420                                      $DEMUXER_LIST      \
3421                                      $MUXER_LIST        \
3422                                      $FILTER_LIST       \
3423                                      $PROTOCOL_LIST     \
3424                                      $INDEV_LIST        \
3425                                      $OUTDEV_LIST       \
3426
3427 cat >>config.mak <<EOF
3428 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3429 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3430 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3431 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3432 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3433 EOF
3434
3435 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3436 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3437
3438 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3439 cp_if_changed $TMPH config.h
3440 touch .config
3441
3442 enabled yasm && cp_if_changed $TMPASM config.asm
3443
3444 cat > $TMPH <<EOF
3445 /* Generated by ffconf */
3446 #ifndef AVUTIL_AVCONFIG_H
3447 #define AVUTIL_AVCONFIG_H
3448 EOF
3449
3450 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3451
3452 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3453
3454 cp_if_changed $TMPH libavutil/avconfig.h
3455
3456 test -n "$WARNINGS" && printf "\n$WARNINGS"
3457
3458 # build pkg-config files
3459
3460 pkgconfig_generate(){
3461 name=$1
3462 shortname=${name#lib}${build_suffix}
3463 comment=$2
3464 version=$3
3465 libs=$4
3466 requires=$5
3467 enabled ${name#lib} || return 0
3468 mkdir -p $name
3469 cat <<EOF > $name/$name.pc
3470 prefix=$prefix
3471 exec_prefix=\${prefix}
3472 libdir=$libdir
3473 includedir=$incdir
3474
3475 Name: $name
3476 Description: $comment
3477 Version: $version
3478 Requires: $(enabled shared || echo $requires)
3479 Requires.private: $(enabled shared && echo $requires)
3480 Conflicts:
3481 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3482 Libs.private: $(enabled shared && echo $libs)
3483 Cflags: -I\${includedir}
3484 EOF
3485 cat <<EOF > $name/$name-uninstalled.pc
3486 prefix=
3487 exec_prefix=
3488 libdir=\${pcfiledir}
3489 includedir=${source_path}
3490
3491 Name: $name
3492 Description: $comment
3493 Version: $version
3494 Requires: $requires
3495 Conflicts:
3496 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3497 Cflags: -I\${includedir}
3498 EOF
3499 }
3500
3501 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3502 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3503 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3504 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3505 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3506 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3507 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"