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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 164   --enable-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libfreetype     enable libfreetype [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 185                            native implementation exists [no]
 186   --enable-libvpx          enable VP8 support via libvpx [no]
 187   --enable-libx264         enable H.264 encoding via x264 [no]
 188   --enable-libxavs         enable AVS encoding via xavs [no]
 189   --enable-libxvid         enable Xvid encoding via xvidcore,
 190                            native MPEG-4/Xvid encoder exists [no]
 191   --enable-mlib            enable Sun medialib [no]
 192   --enable-zlib            enable zlib [autodetect]
 193
 194 Advanced options (experts only):
 195   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 196   --enable-cross-compile   assume a cross-compiler is used
 197   --sysroot=PATH           root of cross-build tree
 198   --sysinclude=PATH        location of cross-build system headers
 199   --target-os=OS           compiler targets OS [$target_os]
 200   --target-exec=CMD        command to run executables on target
 201   --target-path=DIR        path to view of build directory on target
 202   --nm=NM                  use nm tool
 203   --ar=AR                  use archive tool AR [$ar_default]
 204   --as=AS                  use assembler AS [$as_default]
 205   --cc=CC                  use C compiler CC [$cc_default]
 206   --ld=LD                  use linker LD
 207   --host-cc=HOSTCC         use host C compiler HOSTCC
 208   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 209   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 210   --host-libs=HLIBS        use libs HLIBS when linking for host
 211   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 212   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 213   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 214   --extra-version=STRING   version string suffix []
 215   --build-suffix=SUFFIX    library name suffix []
 216   --arch=ARCH              select architecture [$arch]
 217   --cpu=CPU                select the minimum required CPU (affects
 218                            instruction selection, may crash on older CPUs)
 219   --disable-asm            disable all assembler optimizations
 220   --disable-altivec        disable AltiVec optimizations
 221   --disable-amd3dnow       disable 3DNow! optimizations
 222   --disable-amd3dnowext    disable 3DNow! extended optimizations
 223   --disable-mmx            disable MMX optimizations
 224   --disable-mmx2           disable MMX2 optimizations
 225   --disable-sse            disable SSE optimizations
 226   --disable-ssse3          disable SSSE3 optimizations
 227   --disable-avx            disable AVX optimizations
 228   --disable-armv5te        disable armv5te optimizations
 229   --disable-armv6          disable armv6 optimizations
 230   --disable-armv6t2        disable armv6t2 optimizations
 231   --disable-armvfp         disable ARM VFP optimizations
 232   --disable-iwmmxt         disable iwmmxt optimizations
 233   --disable-mmi            disable MMI optimizations
 234   --disable-neon           disable neon optimizations
 235   --disable-vis            disable VIS optimizations
 236   --disable-yasm           disable use of yasm assembler
 237   --enable-pic             build position-independent code
 238   --malloc-prefix=PFX      prefix malloc and related names with PFX
 239   --enable-sram            allow use of on-chip SRAM
 240   --disable-symver         disable symbol versioning
 241   --optflags               override optimization-related compiler flags
 242
 243 Developer options (useful when working on FFmpeg itself):
 244   --disable-debug          disable debugging symbols
 245   --enable-debug=LEVEL     set the debug level [$debuglevel]
 246   --disable-optimizations  disable compiler optimizations
 247   --enable-extra-warnings  enable more compiler warnings
 248   --disable-stripping      disable stripping of executables and shared libraries
 249   --samples=PATH           location of test samples for FATE, if not set use
 250                            \$FATE_SAMPLES at make invocation time.
 251
 252 NOTE: Object files are built at the place where configure is launched.
 253 EOF
 254   exit 0
 255 }
 256
 257 quotes='""'
 258
 259 log(){
 260     echo "$@" >> $logfile
 261 }
 262
 263 log_file(){
 264     log BEGIN $1
 265     pr -n -t $1 >> $logfile
 266     log END $1
 267 }
 268
 269 echolog(){
 270     log "$@"
 271     echo "$@"
 272 }
 273
 274 warn(){
 275     log "WARNING: $*"
 276     WARNINGS="${WARNINGS}WARNING: $*\n"
 277 }
 278
 279 die(){
 280     echolog "$@"
 281     cat <<EOF
 282
 283 If you think configure made a mistake, make sure you are using the latest
 284 version from Git.  If the latest version fails, report the problem to the
 285 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 286 EOF
 287     if disabled logging; then
 288         cat <<EOF
 289 Rerun configure with logging enabled (do not use --disable-logging), and
 290 include the log this produces with your report.
 291 EOF
 292     else
 293 cat <<EOF
 294 Include the log file "$logfile" produced by configure as this will help
 295 solving the problem.
 296 EOF
 297     fi
 298     exit 1
 299 }
 300
 301 # Avoid locale weirdness, besides we really just want to translate ASCII.
 302 toupper(){
 303     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 304 }
 305
 306 tolower(){
 307     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 308 }
 309
 310 c_escape(){
 311     echo "$*" | sed 's/["\\]/\\\0/g'
 312 }
 313
 314 sh_quote(){
 315     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 316     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 317     echo "$v"
 318 }
 319
 320 cleanws(){
 321     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 322 }
 323
 324 filter(){
 325     pat=$1
 326     shift
 327     for v; do
 328         eval "case $v in $pat) echo $v ;; esac"
 329     done
 330 }
 331
 332 filter_out(){
 333     pat=$1
 334     shift
 335     for v; do
 336         eval "case $v in $pat) ;; *) echo $v ;; esac"
 337     done
 338 }
 339
 340 map(){
 341     m=$1
 342     shift
 343     for v; do eval $m; done
 344 }
 345
 346 set_all(){
 347     value=$1
 348     shift
 349     for var in $*; do
 350         eval $var=$value
 351     done
 352 }
 353
 354 set_weak(){
 355     value=$1
 356     shift
 357     for var; do
 358         eval : \${$var:=$value}
 359     done
 360 }
 361
 362 set_safe(){
 363     var=$1
 364     shift
 365     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 366 }
 367
 368 get_safe(){
 369     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 370 }
 371
 372 pushvar(){
 373     for var in $*; do
 374         eval level=\${${var}_level:=0}
 375         eval ${var}_${level}="\$$var"
 376         eval ${var}_level=$(($level+1))
 377     done
 378 }
 379
 380 popvar(){
 381     for var in $*; do
 382         eval level=\${${var}_level:-0}
 383         test $level = 0 && continue
 384         eval level=$(($level-1))
 385         eval $var="\${${var}_${level}}"
 386         eval ${var}_level=$level
 387         eval unset ${var}_${level}
 388     done
 389 }
 390
 391 enable(){
 392     set_all yes $*
 393 }
 394
 395 disable(){
 396     set_all no $*
 397 }
 398
 399 enable_weak(){
 400     set_weak yes $*
 401 }
 402
 403 disable_weak(){
 404     set_weak no $*
 405 }
 406
 407 enable_safe(){
 408     for var; do
 409         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 410     done
 411 }
 412
 413 disable_safe(){
 414     for var; do
 415         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 416     done
 417 }
 418
 419 do_enable_deep(){
 420     for var; do
 421         enabled $var && continue
 422         eval sel="\$${var}_select"
 423         eval sgs="\$${var}_suggest"
 424         pushvar var sgs
 425         enable_deep $sel
 426         popvar sgs
 427         enable_deep_weak $sgs
 428         popvar var
 429     done
 430 }
 431
 432 enable_deep(){
 433     do_enable_deep $*
 434     enable $*
 435 }
 436
 437 enable_deep_weak(){
 438     do_enable_deep $*
 439     enable_weak $*
 440 }
 441
 442 enabled(){
 443     test "${1#!}" = "$1" && op== || op=!=
 444     eval test "x\$${1#!}" $op "xyes"
 445 }
 446
 447 disabled(){
 448     test "${1#!}" = "$1" && op== || op=!=
 449     eval test "x\$${1#!}" $op "xno"
 450 }
 451
 452 enabled_all(){
 453     for opt; do
 454         enabled $opt || return 1
 455     done
 456 }
 457
 458 disabled_all(){
 459     for opt; do
 460         disabled $opt || return 1
 461     done
 462 }
 463
 464 enabled_any(){
 465     for opt; do
 466         enabled $opt && return 0
 467     done
 468 }
 469
 470 disabled_any(){
 471     for opt; do
 472         disabled $opt && return 0
 473     done
 474     return 1
 475 }
 476
 477 set_default(){
 478     for opt; do
 479         eval : \${$opt:=\$${opt}_default}
 480     done
 481 }
 482
 483 is_in(){
 484     value=$1
 485     shift
 486     for var in $*; do
 487         [ $var = $value ] && return 0
 488     done
 489     return 1
 490 }
 491
 492 check_deps(){
 493     for cfg; do
 494         cfg="${cfg#!}"
 495         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 496         disabled ${cfg}_checking && continue
 497         enable ${cfg}_checking
 498
 499         eval dep_all="\$${cfg}_deps"
 500         eval dep_any="\$${cfg}_deps_any"
 501         eval dep_sel="\$${cfg}_select"
 502         eval dep_sgs="\$${cfg}_suggest"
 503         eval dep_ifa="\$${cfg}_if"
 504         eval dep_ifn="\$${cfg}_if_any"
 505
 506         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 508         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509
 510         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 511         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 512         enabled_all  $dep_all || disable $cfg
 513         enabled_any  $dep_any || disable $cfg
 514         disabled_any $dep_sel && disable $cfg
 515
 516         if enabled $cfg; then
 517             eval dep_extralibs="\$${cfg}_extralibs"
 518             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 519             enable_deep $dep_sel
 520             enable_deep_weak $dep_sgs
 521         fi
 522
 523         disable ${cfg}_checking
 524     done
 525 }
 526
 527 print_config_h(){
 528     enabled $1 && v=1 || v=0
 529     echo "#define $2 $v"
 530 }
 531
 532 print_config_mak(){
 533     enabled $1 && v= || v=!
 534     echo "$v$2=yes"
 535 }
 536
 537 print_config_asm(){
 538     enabled $1 && echo "%define $2"
 539 }
 540
 541 print_config(){
 542     pfx=$1
 543     files=$2
 544     shift 2
 545     for cfg; do
 546         ucname="$(toupper $cfg)"
 547         for f in $files; do
 548             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 549         done
 550     done
 551 }
 552
 553 print_enabled(){
 554     test "$1" = -n && end=" " && shift || end="\n"
 555     suf=$1
 556     shift
 557     for v; do
 558         enabled $v && printf "%s$end" ${v%$suf};
 559     done
 560 }
 561
 562 append(){
 563     var=$1
 564     shift
 565     eval "$var=\"\$$var $*\""
 566 }
 567
 568 prepend(){
 569     var=$1
 570     shift
 571     eval "$var=\"$* \$$var\""
 572 }
 573
 574 add_cppflags(){
 575     append CPPFLAGS $($filter_cppflags "$@")
 576 }
 577
 578 add_cflags(){
 579     append CFLAGS $($filter_cflags "$@")
 580 }
 581
 582 add_asflags(){
 583     append ASFLAGS $($filter_asflags "$@")
 584 }
 585
 586 add_ldflags(){
 587     append LDFLAGS "$@"
 588 }
 589
 590 add_extralibs(){
 591     prepend extralibs "$@"
 592 }
 593
 594 check_cmd(){
 595     log "$@"
 596     "$@" >> $logfile 2>&1
 597 }
 598
 599 check_cc(){
 600     log check_cc "$@"
 601     cat > $TMPC
 602     log_file $TMPC
 603     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 604 }
 605
 606 check_cpp(){
 607     log check_cpp "$@"
 608     cat > $TMPC
 609     log_file $TMPC
 610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 611 }
 612
 613 check_as(){
 614     log check_as "$@"
 615     cat > $TMPC
 616     log_file $TMPC
 617     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 618 }
 619
 620 check_asm(){
 621     log check_asm "$@"
 622     name="$1"
 623     code="$2"
 624     shift 2
 625     disable $name
 626     check_as "$@" <<EOF && enable $name
 627 void foo(void){ __asm__ volatile($code); }
 628 EOF
 629 }
 630
 631 check_yasm(){
 632     log check_yasm "$@"
 633     echo "$1" > $TMPS
 634     log_file $TMPS
 635     shift 1
 636     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 637 }
 638
 639 check_ld(){
 640     log check_ld "$@"
 641     flags=''
 642     libs=''
 643     for f; do
 644         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 645     done
 646     check_cc $($filter_cflags $flags) || return
 647     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 648 }
 649
 650 check_cppflags(){
 651     log check_cppflags "$@"
 652     set -- $($filter_cppflags "$@")
 653     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 654 int x;
 655 EOF
 656 }
 657
 658 check_cflags(){
 659     log check_cflags "$@"
 660     set -- $($filter_cflags "$@")
 661     check_cc "$@" <<EOF && append CFLAGS "$@"
 662 int x;
 663 EOF
 664 }
 665
 666 test_ldflags(){
 667     log test_ldflags "$@"
 668     check_ld "$@" <<EOF
 669 int main(void){ return 0; }
 670 EOF
 671 }
 672
 673 check_ldflags(){
 674     log check_ldflags "$@"
 675     test_ldflags "$@" && add_ldflags "$@"
 676 }
 677
 678 check_header(){
 679     log check_header "$@"
 680     header=$1
 681     shift
 682     disable_safe $header
 683     check_cpp "$@" <<EOF && enable_safe $header
 684 #include <$header>
 685 int x;
 686 EOF
 687 }
 688
 689 check_func(){
 690     log check_func "$@"
 691     func=$1
 692     shift
 693     disable $func
 694     check_ld "$@" <<EOF && enable $func
 695 extern int $func();
 696 int main(void){ $func(); }
 697 EOF
 698 }
 699
 700 check_mathfunc(){
 701     log check_mathfunc "$@"
 702     func=$1
 703     shift
 704     disable $func
 705     check_ld "$@" <<EOF && enable $func
 706 #include <math.h>
 707 float foo(float f) { return $func(f); }
 708 int main(void){ return 0; }
 709 EOF
 710 }
 711
 712 check_func_headers(){
 713     log check_func_headers "$@"
 714     headers=$1
 715     funcs=$2
 716     shift 2
 717     {
 718         for hdr in $headers; do
 719             echo "#include <$hdr>"
 720         done
 721         for func in $funcs; do
 722             echo "long check_$func(void) { return (long) $func; }"
 723         done
 724         echo "int main(void) { return 0; }"
 725     } | check_ld "$@" && enable $funcs && enable_safe $headers
 726 }
 727
 728 check_cpp_condition(){
 729     log check_cpp_condition "$@"
 730     header=$1
 731     condition=$2
 732     shift 2
 733     check_cpp $($filter_cppflags "$@") <<EOF
 734 #include <$header>
 735 #if !($condition)
 736 #error "unsatisfied condition: $condition"
 737 #endif
 738 EOF
 739 }
 740
 741 check_lib(){
 742     log check_lib "$@"
 743     header="$1"
 744     func="$2"
 745     shift 2
 746     check_header $header && check_func $func "$@" && add_extralibs "$@"
 747 }
 748
 749 check_lib2(){
 750     log check_lib2 "$@"
 751     headers="$1"
 752     funcs="$2"
 753     shift 2
 754     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 755 }
 756
 757 check_pkg_config(){
 758     log check_pkg_config "$@"
 759     pkg="$1"
 760     headers="$2"
 761     funcs="$3"
 762     shift 3
 763     $pkg_config --exists $pkg 2>/dev/null || return
 764     pkg_cflags=$($pkg_config --cflags $pkg)
 765     pkg_libs=$($pkg_config --libs $pkg)
 766     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 767         set_safe ${pkg}_cflags $pkg_cflags   &&
 768         set_safe ${pkg}_libs   $pkg_libs
 769 }
 770
 771 check_exec(){
 772     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 773 }
 774
 775 check_exec_crash(){
 776     code=$(cat)
 777
 778     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 779     # are safe but may not be available everywhere.  Thus we use
 780     # raise(SIGTERM) instead.  The check is run in a subshell so we
 781     # can redirect the "Terminated" message from the shell.  SIGBUS
 782     # is not defined by standard C so it is used conditionally.
 783
 784     (check_exec "$@") >> $logfile 2>&1 <<EOF
 785 #include <signal.h>
 786 static void sighandler(int sig){
 787     raise(SIGTERM);
 788 }
 789 int main(void){
 790     signal(SIGILL, sighandler);
 791     signal(SIGFPE, sighandler);
 792     signal(SIGSEGV, sighandler);
 793 #ifdef SIGBUS
 794     signal(SIGBUS, sighandler);
 795 #endif
 796     { $code }
 797 }
 798 EOF
 799 }
 800
 801 check_type(){
 802     log check_type "$@"
 803     headers=$1
 804     type=$2
 805     shift 2
 806     disable_safe "$type"
 807     incs=""
 808     for hdr in $headers; do
 809         incs="$incs
 810 #include <$hdr>"
 811     done
 812     check_cc "$@" <<EOF && enable_safe "$type"
 813 $incs
 814 $type v;
 815 EOF
 816 }
 817
 818 check_struct(){
 819     log check_type "$@"
 820     headers=$1
 821     struct=$2
 822     member=$3
 823     shift 3
 824     disable_safe "${struct}_${member}"
 825     incs=""
 826     for hdr in $headers; do
 827         incs="$incs
 828 #include <$hdr>"
 829     done
 830     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 831 $incs
 832 const void *p = &(($struct *)0)->$member;
 833 EOF
 834 }
 835
 836 require(){
 837     name="$1"
 838     header="$2"
 839     func="$3"
 840     shift 3
 841     check_lib $header $func "$@" || die "ERROR: $name not found"
 842 }
 843
 844 require2(){
 845     name="$1"
 846     headers="$2"
 847     func="$3"
 848     shift 3
 849     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 850 }
 851
 852 require_pkg_config(){
 853     pkg="$1"
 854     check_pkg_config "$@" || die "ERROR: $pkg not found"
 855     add_cflags    $(get_safe ${pkg}_cflags)
 856     add_extralibs $(get_safe ${pkg}_libs)
 857 }
 858
 859 check_host_cc(){
 860     log check_host_cc "$@"
 861     cat > $TMPC
 862     log_file $TMPC
 863     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 864 }
 865
 866 check_host_cflags(){
 867     log check_host_cflags "$@"
 868     check_host_cc "$@" <<EOF && append host_cflags "$@"
 869 int x;
 870 EOF
 871 }
 872
 873 apply(){
 874     file=$1
 875     shift
 876     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 877 }
 878
 879 cp_if_changed(){
 880     cmp -s "$1" "$2" &&
 881         echo "$2 is unchanged" ||
 882         cp -f "$1" "$2"
 883 }
 884
 885 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 886 # system-dependent things.
 887
 888 COMPONENT_LIST="
 889     bsfs
 890     decoders
 891     demuxers
 892     encoders
 893     filters
 894     hwaccels
 895     indevs
 896     muxers
 897     outdevs
 898     parsers
 899     protocols
 900 "
 901
 902 CONFIG_LIST="
 903     $COMPONENT_LIST
 904     aandct
 905     ac3dsp
 906     avcodec
 907     avdevice
 908     avfilter
 909     avformat
 910     avisynth
 911     bzlib
 912     crystalhd
 913     dct
 914     doc
 915     dwt
 916     dxva2
 917     fastdiv
 918     ffmpeg
 919     ffplay
 920     ffprobe
 921     ffserver
 922     fft
 923     frei0r
 924     golomb
 925     gpl
 926     gray
 927     h264dsp
 928     h264pred
 929     hardcoded_tables
 930     huffman
 931     libcelt
 932     libdc1394
 933     libdirac
 934     libfaac
 935     libfreetype
 936     libgsm
 937     libmp3lame
 938     libnut
 939     libopencore_amrnb
 940     libopencore_amrwb
 941     libopencv
 942     libopenjpeg
 943     librtmp
 944     libschroedinger
 945     libspeex
 946     libtheora
 947     libvo_aacenc
 948     libvo_amrwbenc
 949     libvorbis
 950     libvpx
 951     libx264
 952     libxavs
 953     libxvid
 954     lpc
 955     lsp
 956     mdct
 957     memalign_hack
 958     mlib
 959     mpegaudiodsp
 960     network
 961     nonfree
 962     pic
 963     postproc
 964     rdft
 965     rtpdec
 966     runtime_cpudetect
 967     shared
 968     sinewin
 969     small
 970     sram
 971     static
 972     swscale
 973     swscale_alpha
 974     thumb
 975     vaapi
 976     vdpau
 977     version3
 978     x11grab
 979     zlib
 980 "
 981
 982 THREADS_LIST='
 983     pthreads
 984     w32threads
 985 '
 986
 987 ARCH_LIST='
 988     alpha
 989     arm
 990     avr32
 991     avr32_ap
 992     avr32_uc
 993     bfin
 994     ia64
 995     m68k
 996     mips
 997     mips64
 998     parisc
 999     ppc
1000     ppc64
1001     s390
1002     sh4
1003     sparc
1004     sparc64
1005     tomi
1006     x86
1007     x86_32
1008     x86_64
1009 '
1010
1011 ARCH_EXT_LIST='
1012     altivec
1013     amd3dnow
1014     amd3dnowext
1015     armv5te
1016     armv6
1017     armv6t2
1018     armvfp
1019     avx
1020     iwmmxt
1021     mmi
1022     mmx
1023     mmx2
1024     neon
1025     ppc4xx
1026     sse
1027     ssse3
1028     vfpv3
1029     vis
1030 '
1031
1032 HAVE_LIST_PUB='
1033     bigendian
1034     fast_unaligned
1035 '
1036
1037 HAVE_LIST="
1038     $ARCH_EXT_LIST
1039     $HAVE_LIST_PUB
1040     $THREADS_LIST
1041     aligned_stack
1042     alsa_asoundlib_h
1043     altivec_h
1044     arpa_inet_h
1045     attribute_may_alias
1046     attribute_packed
1047     bswap
1048     closesocket
1049     cmov
1050     dcbzl
1051     dev_bktr_ioctl_bt848_h
1052     dev_bktr_ioctl_meteor_h
1053     dev_ic_bt8xx_h
1054     dev_video_meteor_ioctl_meteor_h
1055     dev_video_bktr_ioctl_bt848_h
1056     dlfcn_h
1057     dlopen
1058     dos_paths
1059     ebp_available
1060     ebx_available
1061     exp2
1062     exp2f
1063     fast_64bit
1064     fast_clz
1065     fast_cmov
1066     fcntl
1067     fork
1068     getaddrinfo
1069     gethrtime
1070     GetProcessMemoryInfo
1071     GetProcessTimes
1072     getrusage
1073     gnu_as
1074     struct_rusage_ru_maxrss
1075     ibm_asm
1076     inet_aton
1077     inline_asm
1078     isatty
1079     kbhit
1080     ldbrx
1081     llrint
1082     llrintf
1083     local_aligned_16
1084     local_aligned_8
1085     localtime_r
1086     log2
1087     log2f
1088     loongson
1089     lrint
1090     lrintf
1091     lzo1x_999_compress
1092     machine_ioctl_bt848_h
1093     machine_ioctl_meteor_h
1094     malloc_h
1095     MapViewOfFile
1096     memalign
1097     mkstemp
1098     mmap
1099     pld
1100     posix_memalign
1101     round
1102     roundf
1103     sdl
1104     sdl_video_size
1105     setmode
1106     sndio_h
1107     socklen_t
1108     soundcard_h
1109     poll_h
1110     setrlimit
1111     strerror_r
1112     strtok_r
1113     struct_addrinfo
1114     struct_ipv6_mreq
1115     struct_sockaddr_in6
1116     struct_sockaddr_sa_len
1117     struct_sockaddr_storage
1118     symver
1119     symver_gnu_asm
1120     symver_asm_label
1121     sys_mman_h
1122     sys_resource_h
1123     sys_select_h
1124     sys_soundcard_h
1125     sys_videoio_h
1126     ten_operands
1127     termios_h
1128     threads
1129     trunc
1130     truncf
1131     vfp_args
1132     VirtualAlloc
1133     winsock2_h
1134     xform_asm
1135     xmm_clobbers
1136     yasm
1137 "
1138
1139 # options emitted with CONFIG_ prefix but not available on command line
1140 CONFIG_EXTRA="
1141     avutil
1142     gplv3
1143     lgplv3
1144 "
1145
1146 CMDLINE_SELECT="
1147     $ARCH_EXT_LIST
1148     $CONFIG_LIST
1149     $THREADS_LIST
1150     asm
1151     cross_compile
1152     debug
1153     extra_warnings
1154     logging
1155     optimizations
1156     stripping
1157     symver
1158     yasm
1159 "
1160
1161 PATHS_LIST='
1162     bindir
1163     datadir
1164     incdir
1165     libdir
1166     mandir
1167     prefix
1168     shlibdir
1169 '
1170
1171 CMDLINE_SET="
1172     $PATHS_LIST
1173     ar
1174     arch
1175     as
1176     build_suffix
1177     cc
1178     cpu
1179     cross_prefix
1180     dep_cc
1181     extra_version
1182     host_cc
1183     host_cflags
1184     host_ldflags
1185     host_libs
1186     host_os
1187     install
1188     ld
1189     logfile
1190     malloc_prefix
1191     nm
1192     optflags
1193     pkg_config
1194     samples
1195     strip
1196     sysinclude
1197     sysroot
1198     target_exec
1199     target_os
1200     target_path
1201 "
1202
1203 CMDLINE_APPEND="
1204     extra_cflags
1205 "
1206
1207 # code dependency declarations
1208
1209 # architecture extensions
1210
1211 armv5te_deps="arm"
1212 armv6_deps="arm"
1213 armv6t2_deps="arm"
1214 armvfp_deps="arm"
1215 iwmmxt_deps="arm"
1216 neon_deps="arm"
1217 vfpv3_deps="armvfp"
1218
1219 mmi_deps="mips"
1220
1221 altivec_deps="ppc"
1222 ppc4xx_deps="ppc"
1223
1224 vis_deps="sparc"
1225
1226 x86_64_suggest="cmov fast_cmov"
1227 amd3dnow_deps="mmx"
1228 amd3dnowext_deps="amd3dnow"
1229 mmx_deps="x86"
1230 mmx2_deps="mmx"
1231 sse_deps="mmx"
1232 ssse3_deps="sse"
1233 avx_deps="ssse3"
1234
1235 aligned_stack_if_any="ppc x86"
1236 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1237 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1238 fast_unaligned_if_any="armv6 ppc x86"
1239
1240 need_memalign="altivec neon sse"
1241 inline_asm_deps="!tms470"
1242
1243 symver_if_any="symver_asm_label symver_gnu_asm"
1244
1245 # subsystems
1246 dct_select="rdft"
1247 mdct_select="fft"
1248 rdft_select="fft"
1249 mpegaudiodsp_select="dct"
1250
1251 # decoders / encoders / hardware accelerators
1252 aac_decoder_select="mdct sinewin"
1253 aac_encoder_select="mdct sinewin"
1254 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1255 ac3_decoder_select="mdct ac3dsp ac3_parser"
1256 ac3_encoder_select="mdct ac3dsp"
1257 ac3_fixed_encoder_select="mdct ac3dsp"
1258 alac_encoder_select="lpc"
1259 amrnb_decoder_select="lsp"
1260 amrwb_decoder_select="lsp"
1261 atrac1_decoder_select="mdct sinewin"
1262 atrac3_decoder_select="mdct"
1263 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1264 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1265 cavs_decoder_select="golomb"
1266 cook_decoder_select="mdct sinewin"
1267 cscd_decoder_suggest="zlib"
1268 dca_decoder_select="mdct"
1269 dnxhd_encoder_select="aandct"
1270 dxa_decoder_select="zlib"
1271 eac3_decoder_select="ac3_decoder"
1272 eac3_encoder_select="mdct ac3dsp"
1273 eamad_decoder_select="aandct"
1274 eatgq_decoder_select="aandct"
1275 eatqi_decoder_select="aandct"
1276 ffv1_decoder_select="golomb"
1277 flac_decoder_select="golomb"
1278 flac_encoder_select="golomb lpc"
1279 flashsv_decoder_select="zlib"
1280 flashsv_encoder_select="zlib"
1281 flashsv2_encoder_select="zlib"
1282 flv_decoder_select="h263_decoder"
1283 flv_encoder_select="h263_encoder"
1284 fraps_decoder_select="huffman"
1285 h261_encoder_select="aandct"
1286 h263_decoder_select="h263_parser"
1287 h263_encoder_select="aandct"
1288 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1289 h263i_decoder_select="h263_decoder"
1290 h263p_encoder_select="h263_encoder"
1291 h264_decoder_select="golomb h264dsp h264pred"
1292 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1293 h264_dxva2_hwaccel_deps="dxva2api_h"
1294 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1295 h264_vaapi_hwaccel_select="vaapi"
1296 h264_vdpau_decoder_select="vdpau h264_decoder"
1297 imc_decoder_select="fft mdct sinewin"
1298 jpegls_decoder_select="golomb"
1299 jpegls_encoder_select="golomb"
1300 ljpeg_encoder_select="aandct"
1301 loco_decoder_select="golomb"
1302 mjpeg_encoder_select="aandct"
1303 mlp_decoder_select="mlp_parser"
1304 mp1_decoder_select="mpegaudiodsp"
1305 mp2_decoder_select="mpegaudiodsp"
1306 mp3adu_decoder_select="mpegaudiodsp"
1307 mp3_decoder_select="mpegaudiodsp"
1308 mp3on4_decoder_select="mpegaudiodsp"
1309 mp1float_decoder_select="mpegaudiodsp"
1310 mp2float_decoder_select="mpegaudiodsp"
1311 mp3adufloat_decoder_select="mpegaudiodsp"
1312 mp3float_decoder_select="mpegaudiodsp"
1313 mp3on4float_decoder_select="mpegaudiodsp"
1314 mpeg1video_encoder_select="aandct"
1315 mpeg2video_encoder_select="aandct"
1316 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1317 mpeg4_encoder_select="h263_encoder"
1318 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1319 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1320 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1321 mpeg2_crystalhd_decoder_select="crystalhd"
1322 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1323 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1324 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1325 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1326 mpeg4_crystalhd_decoder_select="crystalhd"
1327 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1328 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1329 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1330 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1331 msmpeg4_crystalhd_decoder_select="crystalhd"
1332 msmpeg4v1_decoder_select="h263_decoder"
1333 msmpeg4v1_encoder_select="h263_encoder"
1334 msmpeg4v2_decoder_select="h263_decoder"
1335 msmpeg4v2_encoder_select="h263_encoder"
1336 msmpeg4v3_decoder_select="h263_decoder"
1337 msmpeg4v3_encoder_select="h263_encoder"
1338 nellymoser_decoder_select="mdct sinewin"
1339 nellymoser_encoder_select="mdct sinewin"
1340 png_decoder_select="zlib"
1341 png_encoder_select="zlib"
1342 qcelp_decoder_select="lsp"
1343 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1344 ra_144_encoder_select="lpc"
1345 rv10_decoder_select="h263_decoder"
1346 rv10_encoder_select="h263_encoder"
1347 rv20_decoder_select="h263_decoder"
1348 rv20_encoder_select="h263_encoder"
1349 rv30_decoder_select="golomb h264pred"
1350 rv40_decoder_select="golomb h264pred"
1351 shorten_decoder_select="golomb"
1352 sipr_decoder_select="lsp"
1353 snow_decoder_select="dwt"
1354 snow_encoder_select="aandct dwt"
1355 sonic_decoder_select="golomb"
1356 sonic_encoder_select="golomb"
1357 sonic_ls_encoder_select="golomb"
1358 svq1_encoder_select="aandct"
1359 svq3_decoder_select="golomb h264dsp h264pred"
1360 svq3_decoder_suggest="zlib"
1361 theora_decoder_select="vp3_decoder"
1362 tiff_decoder_suggest="zlib"
1363 tiff_encoder_suggest="zlib"
1364 truehd_decoder_select="mlp_decoder"
1365 tscc_decoder_select="zlib"
1366 twinvq_decoder_select="mdct lsp sinewin"
1367 vc1_decoder_select="h263_decoder"
1368 vc1_crystalhd_decoder_select="crystalhd"
1369 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1370 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1371 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1372 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1373 vorbis_decoder_select="mdct"
1374 vorbis_encoder_select="mdct"
1375 vp6_decoder_select="huffman"
1376 vp6a_decoder_select="vp6_decoder"
1377 vp6f_decoder_select="vp6_decoder"
1378 vp8_decoder_select="h264pred"
1379 wmapro_decoder_select="mdct sinewin"
1380 wmav1_decoder_select="mdct sinewin"
1381 wmav1_encoder_select="mdct sinewin"
1382 wmav2_decoder_select="mdct sinewin"
1383 wmav2_encoder_select="mdct sinewin"
1384 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1385 wmv1_decoder_select="h263_decoder"
1386 wmv1_encoder_select="h263_encoder"
1387 wmv2_decoder_select="h263_decoder"
1388 wmv2_encoder_select="h263_encoder"
1389 wmv3_decoder_select="vc1_decoder"
1390 wmv3_crystalhd_decoder_select="crystalhd"
1391 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1392 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1393 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1394 zlib_decoder_select="zlib"
1395 zlib_encoder_select="zlib"
1396 zmbv_decoder_select="zlib"
1397 zmbv_encoder_select="zlib"
1398
1399 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1400 vaapi_deps="va_va_h"
1401 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1402
1403 # parsers
1404 h264_parser_select="golomb h264dsp h264pred"
1405
1406 # external libraries
1407 libcelt_decoder_deps="libcelt"
1408 libdirac_decoder_deps="libdirac !libschroedinger"
1409 libdirac_encoder_deps="libdirac"
1410 libfaac_encoder_deps="libfaac"
1411 libgsm_decoder_deps="libgsm"
1412 libgsm_encoder_deps="libgsm"
1413 libgsm_ms_decoder_deps="libgsm"
1414 libgsm_ms_encoder_deps="libgsm"
1415 libmp3lame_encoder_deps="libmp3lame"
1416 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1417 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1418 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1419 libopenjpeg_decoder_deps="libopenjpeg"
1420 libschroedinger_decoder_deps="libschroedinger"
1421 libschroedinger_encoder_deps="libschroedinger"
1422 libspeex_decoder_deps="libspeex"
1423 libtheora_encoder_deps="libtheora"
1424 libvo_aacenc_encoder_deps="libvo_aacenc"
1425 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1426 libvorbis_encoder_deps="libvorbis"
1427 libvpx_decoder_deps="libvpx"
1428 libvpx_encoder_deps="libvpx"
1429 libx264_encoder_deps="libx264"
1430 libxavs_encoder_deps="libxavs"
1431 libxvid_encoder_deps="libxvid"
1432
1433 # demuxers / muxers
1434 ac3_demuxer_select="ac3_parser"
1435 asf_stream_muxer_select="asf_muxer"
1436 avisynth_demuxer_deps="avisynth"
1437 dirac_demuxer_select="dirac_parser"
1438 eac3_demuxer_select="ac3_parser"
1439 flac_demuxer_select="flac_parser"
1440 ipod_muxer_select="mov_muxer"
1441 libnut_demuxer_deps="libnut"
1442 libnut_muxer_deps="libnut"
1443 matroska_audio_muxer_select="matroska_muxer"
1444 matroska_demuxer_suggest="zlib bzlib"
1445 mov_demuxer_suggest="zlib"
1446 mp3_demuxer_select="mpegaudio_parser"
1447 mp4_muxer_select="mov_muxer"
1448 mpegtsraw_demuxer_select="mpegts_demuxer"
1449 mxf_d10_muxer_select="mxf_muxer"
1450 ogg_demuxer_select="golomb"
1451 psp_muxer_select="mov_muxer"
1452 rtp_demuxer_select="sdp_demuxer"
1453 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1454 rtsp_demuxer_select="http_protocol rtpdec"
1455 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1456 sap_demuxer_select="sdp_demuxer"
1457 sap_muxer_select="rtp_muxer rtp_protocol"
1458 sdp_demuxer_select="rtpdec"
1459 spdif_muxer_select="aac_parser"
1460 tg2_muxer_select="mov_muxer"
1461 tgp_muxer_select="mov_muxer"
1462 w64_demuxer_deps="wav_demuxer"
1463
1464 # indevs / outdevs
1465 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1466 alsa_outdev_deps="alsa_asoundlib_h"
1467 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1468 dshow_indev_deps="IBaseFilter"
1469 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1470 dv1394_indev_deps="dv1394 dv_demuxer"
1471 fbdev_indev_deps="linux_fb_h"
1472 jack_indev_deps="jack_jack_h sem_timedwait"
1473 libdc1394_indev_deps="libdc1394"
1474 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1475 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1476 sdl_outdev_deps="sdl"
1477 sndio_indev_deps="sndio_h"
1478 sndio_outdev_deps="sndio_h"
1479 v4l_indev_deps="linux_videodev_h"
1480 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1481 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1482 vfwcap_indev_extralibs="-lavicap32"
1483 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1484 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1485
1486 # protocols
1487 gopher_protocol_deps="network"
1488 http_protocol_deps="network"
1489 http_protocol_select="tcp_protocol"
1490 mmsh_protocol_select="http_protocol"
1491 mmst_protocol_deps="network"
1492 rtmp_protocol_select="tcp_protocol"
1493 rtp_protocol_select="udp_protocol"
1494 tcp_protocol_deps="network"
1495 udp_protocol_deps="network"
1496
1497 # filters
1498 blackframe_filter_deps="gpl"
1499 cropdetect_filter_deps="gpl"
1500 drawtext_filter_deps="libfreetype"
1501 frei0r_filter_deps="frei0r dlopen strtok_r"
1502 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1503 hqdn3d_filter_deps="gpl"
1504 movie_filter_deps="avcodec avformat"
1505 mp_filter_deps="gpl avcodec"
1506 negate_filter_deps="lut_filter"
1507 ocv_filter_deps="libopencv"
1508 scale_filter_deps="swscale"
1509 yadif_filter_deps="gpl"
1510
1511 # libraries
1512 avdevice_deps="avcodec avformat"
1513 avformat_deps="avcodec"
1514 postproc_deps="gpl"
1515
1516 # programs
1517 ffmpeg_deps="avcodec avformat swscale"
1518 ffmpeg_select="buffer_filter buffersink_filter"
1519 ffplay_deps="avcodec avformat swscale sdl"
1520 ffplay_select="buffersink_filter rdft"
1521 ffprobe_deps="avcodec avformat"
1522 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1523 ffserver_extralibs='$ldl'
1524
1525 doc_deps="texi2html"
1526
1527 # tests
1528
1529 test_deps(){
1530     suf1=$1
1531     suf2=$2
1532     shift 2
1533     for v; do
1534         dep=${v%=*}
1535         tests=${v#*=}
1536         for name in ${tests}; do
1537             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1538         done
1539     done
1540 }
1541
1542 set_ne_test_deps(){
1543     eval ${1}_be_test_deps="bigendian"
1544     eval ${1}_le_test_deps="!bigendian"
1545 }
1546
1547 test_deps _encoder _decoder                                             \
1548     adpcm_g726=g726                                                     \
1549     adpcm_ima_qt                                                        \
1550     adpcm_ima_wav                                                       \
1551     adpcm_ms                                                            \
1552     adpcm_swf                                                           \
1553     adpcm_yamaha=adpcm_yam                                              \
1554     alac                                                                \
1555     asv1                                                                \
1556     asv2                                                                \
1557     bmp                                                                 \
1558     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1559     dvvideo="dv dv50"                                                   \
1560     ffv1                                                                \
1561     flac                                                                \
1562     flashsv                                                             \
1563     flv                                                                 \
1564     gif                                                                 \
1565     h261                                                                \
1566     h263="h263 h263p"                                                   \
1567     huffyuv                                                             \
1568     jpegls                                                              \
1569     mjpeg="jpg mjpeg ljpeg"                                             \
1570     mp2                                                                 \
1571     mpeg1video="mpeg mpeg1b"                                            \
1572     mpeg2video="mpeg2 mpeg2thread"                                      \
1573     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1574     msmpeg4v3=msmpeg4                                                   \
1575     msmpeg4v2                                                           \
1576     pbm=pbmpipe                                                         \
1577     pcx                                                                 \
1578     pgm="pgm pgmpipe"                                                   \
1579     png                                                                 \
1580     ppm="ppm ppmpipe"                                                   \
1581     rawvideo="rgb yuv"                                                  \
1582     roq                                                                 \
1583     rv10                                                                \
1584     rv20                                                                \
1585     sgi                                                                 \
1586     snow="snow snowll"                                                  \
1587     svq1                                                                \
1588     targa=tga                                                           \
1589     tiff                                                                \
1590     wmav1                                                               \
1591     wmav2                                                               \
1592     wmv1                                                                \
1593     wmv2                                                                \
1594
1595 test_deps _muxer _demuxer                                               \
1596     aiff                                                                \
1597     pcm_alaw=alaw                                                       \
1598     asf                                                                 \
1599     au                                                                  \
1600     avi                                                                 \
1601     dv=dv_fmt                                                           \
1602     ffm                                                                 \
1603     flv=flv_fmt                                                         \
1604     gxf                                                                 \
1605     matroska=mkv                                                        \
1606     mmf                                                                 \
1607     mov                                                                 \
1608     pcm_mulaw=mulaw                                                     \
1609     mxf                                                                 \
1610     nut                                                                 \
1611     ogg                                                                 \
1612     rawvideo=pixfmt                                                     \
1613     rm                                                                  \
1614     swf                                                                 \
1615     mpegts=ts                                                           \
1616     voc                                                                 \
1617     wav                                                                 \
1618     yuv4mpegpipe=yuv4mpeg                                               \
1619
1620 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1621 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1622
1623 set_ne_test_deps pixdesc
1624 set_ne_test_deps pixfmts_copy
1625 set_ne_test_deps pixfmts_crop
1626 set_ne_test_deps pixfmts_hflip
1627 set_ne_test_deps pixfmts_null
1628 set_ne_test_deps pixfmts_pad
1629 set_ne_test_deps pixfmts_scale
1630 set_ne_test_deps pixfmts_vflip
1631
1632 # default parameters
1633
1634 logfile="config.log"
1635
1636 # installation paths
1637 prefix_default="/usr/local"
1638 bindir_default='${prefix}/bin'
1639 datadir_default='${prefix}/share/ffmpeg'
1640 incdir_default='${prefix}/include'
1641 libdir_default='${prefix}/lib'
1642 mandir_default='${prefix}/share/man'
1643 shlibdir_default="$libdir_default"
1644
1645 # toolchain
1646 ar_default="ar"
1647 cc_default="gcc"
1648 cc_version=\"unknown\"
1649 host_cc_default="gcc"
1650 install="install"
1651 ln_s="ln -sf"
1652 nm_default="nm"
1653 objformat="elf"
1654 pkg_config_default=pkg-config
1655 ranlib="ranlib"
1656 strip_default="strip"
1657 yasmexe="yasm"
1658 nogas=":"
1659
1660 nm_opts='-g'
1661
1662 # machine
1663 arch_default=$(uname -m)
1664 cpu="generic"
1665
1666 # OS
1667 target_os_default=$(tolower $(uname -s))
1668 host_os=$target_os_default
1669
1670 # configurable options
1671 enable avcodec
1672 enable avdevice
1673 enable avfilter
1674 enable avformat
1675 enable avutil
1676 enable asm
1677 enable debug
1678 enable doc
1679 enable fastdiv
1680 enable ffmpeg
1681 enable ffplay
1682 enable ffprobe
1683 enable ffserver
1684 enable network
1685 enable optimizations
1686 enable postproc
1687 enable protocols
1688 enable static
1689 enable stripping
1690 enable swscale
1691 enable swscale_alpha
1692
1693 # build settings
1694 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1695 FFSERVERLDFLAGS=-Wl,-E
1696 LIBPREF="lib"
1697 LIBSUF=".a"
1698 FULLNAME='$(NAME)$(BUILDSUF)'
1699 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1700 SLIBPREF="lib"
1701 SLIBSUF=".so"
1702 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1703 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1704 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1705 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1706
1707 CC_O='-o $@'
1708
1709 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1710 host_libs='-lm'
1711
1712 target_path='$(CURDIR)'
1713
1714 # since the object filename is not given with the -MM flag, the compiler
1715 # is only able to print the basename, and we must add the path ourselves
1716 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1717 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1718
1719 # find source path
1720 if test -f configure; then
1721     source_path=.
1722     disable source_path_used
1723 else
1724     source_path=$(cd $(dirname "$0"); pwd)
1725     enable source_path_used
1726     echo "$source_path" | grep -q '[[:blank:]]' &&
1727         die "Out of tree builds are impossible with whitespace in source path."
1728     test -e "$source_path/config.h" &&
1729         die "Out of tree builds are impossible with config.h in source dir."
1730 fi
1731
1732 for v in "$@"; do
1733     r=${v#*=}
1734     l=${v%"$r"}
1735     r=$(sh_quote "$r")
1736     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1737 done
1738
1739 find_things(){
1740     thing=$1
1741     pattern=$2
1742     file=$source_path/$3
1743     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1744 }
1745
1746 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1747 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1748 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1749 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1750 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1751 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1752 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1753 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1754 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1755 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1756 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1757
1758 find_tests(){
1759     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1760 }
1761
1762 ACODEC_TESTS=$(find_tests acodec)
1763 VCODEC_TESTS=$(find_tests vsynth1)
1764 LAVF_TESTS=$(find_tests lavf)
1765 LAVFI_TESTS=$(find_tests lavfi)
1766 SEEK_TESTS=$(find_tests seek seek_)
1767
1768 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1769
1770 for n in $COMPONENT_LIST; do
1771     v=$(toupper ${n%s})_LIST
1772     eval enable \$$v
1773     eval ${n}_if_any="\$$v"
1774 done
1775
1776 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1777
1778 die_unknown(){
1779     echo "Unknown option \"$1\"."
1780     echo "See $0 --help for available options."
1781     exit 1
1782 }
1783
1784 show_list() {
1785     suffix=_$1
1786     shift
1787     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1788     exit 0
1789 }
1790
1791 for opt do
1792     optval="${opt#*=}"
1793     case "$opt" in
1794     --extra-ldflags=*) add_ldflags $optval
1795     ;;
1796     --extra-libs=*) add_extralibs $optval
1797     ;;
1798     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1799     ;;
1800     --enable-debug=*) debuglevel="$optval"
1801     ;;
1802     --disable-everything)
1803     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1804     ;;
1805     --enable-*=*|--disable-*=*)
1806     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1807     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1808     eval list=\$$(toupper $thing)_LIST
1809     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1810     $action $(filter "$name" $list)
1811     ;;
1812     --enable-?*|--disable-?*)
1813     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1814     if is_in $option $COMPONENT_LIST; then
1815         test $action = disable && action=unset
1816         eval $action \$$(toupper ${option%s})_LIST
1817     elif is_in $option $CMDLINE_SELECT; then
1818         $action $option
1819     else
1820         die_unknown $opt
1821     fi
1822     ;;
1823     --list-*)
1824         NAME="${opt#--list-}"
1825         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1826         NAME=${NAME%s}
1827         eval show_list $NAME \$$(toupper $NAME)_LIST
1828     ;;
1829     --help|-h) show_help
1830     ;;
1831     *)
1832     optname="${opt%%=*}"
1833     optname="${optname#--}"
1834     optname=$(echo "$optname" | sed 's/-/_/g')
1835     if is_in $optname $CMDLINE_SET; then
1836         eval $optname='$optval'
1837     elif is_in $optname $CMDLINE_APPEND; then
1838         append $optname "$optval"
1839     else
1840          die_unknown $opt
1841     fi
1842     ;;
1843     esac
1844 done
1845
1846 disabled logging && logfile=/dev/null
1847
1848 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1849 set >> $logfile
1850
1851 test -n "$cross_prefix" && enable cross_compile
1852
1853 if enabled cross_compile; then
1854     test -n "$arch" && test -n "$target_os" ||
1855         die "Must specify target arch and OS when cross-compiling"
1856 fi
1857
1858 set_default arch target_os
1859
1860 ar_default="${cross_prefix}${ar_default}"
1861 cc_default="${cross_prefix}${cc_default}"
1862 nm_default="${cross_prefix}${nm_default}"
1863 pkg_config_default="${cross_prefix}${pkg_config_default}"
1864 ranlib="${cross_prefix}${ranlib}"
1865 strip_default="${cross_prefix}${strip_default}"
1866
1867 sysinclude_default="${sysroot}/usr/include"
1868
1869 set_default cc nm pkg_config strip sysinclude
1870 enabled cross_compile || host_cc_default=$cc
1871 set_default host_cc
1872
1873 if ! $pkg_config --version >/dev/null 2>&1; then
1874     warn "$pkg_config not found, library detection may fail."
1875     pkg_config=false
1876 fi
1877
1878 exesuf() {
1879     case $1 in
1880         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1881     esac
1882 }
1883
1884 EXESUF=$(exesuf $target_os)
1885 HOSTEXESUF=$(exesuf $host_os)
1886
1887 # set temporary file name
1888 : ${TMPDIR:=$TEMPDIR}
1889 : ${TMPDIR:=$TMP}
1890 : ${TMPDIR:=/tmp}
1891
1892 if ! check_cmd mktemp -u XXXXXX; then
1893     # simple replacement for missing mktemp
1894     # NOT SAFE FOR GENERAL USE
1895     mktemp(){
1896         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1897     }
1898 fi
1899
1900 tmpfile(){
1901     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1902         (set -C; exec > $tmp) 2>/dev/null ||
1903         die "Unable to create temporary file in $TMPDIR."
1904     append TMPFILES $tmp
1905     eval $1=$tmp
1906 }
1907
1908 trap 'rm -f -- $TMPFILES' EXIT
1909
1910 tmpfile TMPC  .c
1911 tmpfile TMPE  $EXESUF
1912 tmpfile TMPH  .h
1913 tmpfile TMPO  .o
1914 tmpfile TMPS  .S
1915 tmpfile TMPV  .ver
1916 tmpfile TMPSH .sh
1917 tmpfile TMPASM .asm
1918
1919 unset -f mktemp
1920
1921 chmod +x $TMPE
1922
1923 # make sure we can execute files in $TMPDIR
1924 cat > $TMPSH 2>> $logfile <<EOF
1925 #! /bin/sh
1926 EOF
1927 chmod +x $TMPSH >> $logfile 2>&1
1928 if ! $TMPSH >> $logfile 2>&1; then
1929     cat <<EOF
1930 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1931 variable to another directory and make sure that it is not mounted noexec.
1932 EOF
1933     die "Sanity test failed."
1934 fi
1935
1936 filter_cflags=echo
1937 filter_cppflags=echo
1938 filter_asflags=echo
1939
1940 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1941     cc_type=llvm_gcc
1942     cc_version=__VERSION__
1943     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1944     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1945     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1946     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947     speed_cflags='-O3'
1948     size_cflags='-Os'
1949 elif $cc -v 2>&1 | grep -qi ^gcc; then
1950     cc_type=gcc
1951     cc_version=__VERSION__
1952     gcc_version=$($cc --version | head -n1)
1953     gcc_basever=$($cc -dumpversion)
1954     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1955     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1956     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1957     if ! $cc -dumpversion | grep -q '^2\.'; then
1958         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1959         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960     fi
1961     speed_cflags='-O3'
1962     size_cflags='-Os'
1963 elif $cc --version 2>/dev/null | grep -q Intel; then
1964     cc_type=icc
1965     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1966     cc_ident=$($cc --version | head -n1)
1967     icc_version=$($cc -dumpversion)
1968     CC_DEPFLAGS='-MMD'
1969     AS_DEPFLAGS='-MMD'
1970     speed_cflags='-O3'
1971     size_cflags='-Os'
1972     noopt_cflags='-O1'
1973 elif $cc -v 2>&1 | grep -q xlc; then
1974     cc_type=xlc
1975     cc_version="AV_STRINGIFY(__IBMC__)"
1976     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1977     speed_cflags='-O5'
1978     size_cflags='-O5 -qcompact'
1979 elif $cc -V 2>/dev/null | grep -q Compaq; then
1980     cc_type=ccc
1981     cc_version="AV_STRINGIFY(__DECC_VER)"
1982     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1983     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1984     debuglevel=3
1985     add_ldflags -Wl,-z,now # calls to libots crash without this
1986     speed_cflags='-fast'
1987     size_cflags='-O1'
1988 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1989     test -d "$sysroot" || die "No valid sysroot specified."
1990     cc_type=armcc
1991     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1992     cc_ident=$($cc --vsn | head -n1)
1993     armcc_conf="$PWD/armcc.conf"
1994     $cc --arm_linux_configure                 \
1995         --arm_linux_config_file="$armcc_conf" \
1996         --configure_sysroot="$sysroot"        \
1997         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1998         die "Error creating armcc configuration file."
1999     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2000     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2001     as_default="${cross_prefix}gcc"
2002     CC_DEPFLAGS='-MMD'
2003     AS_DEPFLAGS='-MMD'
2004     speed_cflags='-O3'
2005     size_cflags='-Os'
2006     filter_asflags="filter_out -W${armcc_opt}*"
2007 elif $cc -version 2>/dev/null | grep -q TMS470; then
2008     cc_type=tms470
2009     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2010     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2011     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2012     CC_O='-fr=$(@D)'
2013     as_default="${cross_prefix}gcc"
2014     ld_default="${cross_prefix}gcc"
2015     TMPO=$(basename $TMPC .c).o
2016     append TMPFILES $TMPO
2017     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2018     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2019     AS_DEPFLAGS='-MMD'
2020     speed_cflags='-O3 -mf=5'
2021     size_cflags='-O3 -mf=2'
2022     filter_cflags=tms470_flags
2023     tms470_flags(){
2024         for flag; do
2025             case $flag in
2026                 -march=*|-mcpu=*)
2027                     case "${flag#*=}" in
2028                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2029                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2030                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2031                         armv6*|arm11*)          echo -mv=6   ;;
2032                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2033                                                 echo -mv=5e  ;;
2034                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2035                     esac
2036                     ;;
2037                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2038                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2039                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2040                 -msoft-float)   echo --float_support=vfplib       ;;
2041                 -O[0-3]|-mf=*)  echo $flag                        ;;
2042                 -g)             echo -g -mn                       ;;
2043                 -pds=*)         echo $flag                        ;;
2044             esac
2045         done
2046     }
2047 elif $cc -v 2>&1 | grep -q clang; then
2048     cc_type=clang
2049     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2050         cc_version=__clang_version__ || cc_version=__VERSION__
2051     cc_ident=$($cc --version | head -n1)
2052     CC_DEPFLAGS='-MMD'
2053     AS_DEPFLAGS='-MMD'
2054     speed_cflags='-O3'
2055     size_cflags='-Os'
2056 elif $cc -V 2>&1 | grep -q Sun; then
2057     cc_type=suncc
2058     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2059     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2060     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2061     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2062     speed_cflags='-O5'
2063     size_cflags='-O5 -xspace'
2064     filter_cflags=suncc_flags
2065     suncc_flags(){
2066         for flag; do
2067             case $flag in
2068                 -march=*|-mcpu=*)
2069                     case "${flag#*=}" in
2070                         native)                   echo -xtarget=native       ;;
2071                         v9|niagara)               echo -xarch=sparc          ;;
2072                         ultrasparc)               echo -xarch=sparcvis       ;;
2073                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2074                         i586|pentium)             echo -xchip=pentium        ;;
2075                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2076                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2077                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2078                         pentium4*)          echo -xtarget=pentium4           ;;
2079                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2080                         *-sse3)             echo -xarch=sse3                 ;;
2081                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2082                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2083                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2084                         k8|opteron|athlon64|athlon-fx)
2085                                                   echo -xarch=sse2a          ;;
2086                         athlon*)                  echo -xarch=pentium_proa   ;;
2087                     esac
2088                     ;;
2089                 -std=c99)             echo -xc99              ;;
2090                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2091                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2092                 -W*,*)                echo $flag              ;;
2093                 -f*-*|-W*)                                    ;;
2094                 *)                    echo $flag              ;;
2095             esac
2096         done
2097     }
2098 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2099     cc_type=pathscale
2100     cc_version=__PATHSCALE__
2101     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2102     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2103     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2104     speed_cflags='-O2'
2105     size_cflags='-Os'
2106     filter_cflags='filter_out -Wdisabled-optimization'
2107 elif $cc -v 2>&1 | grep -q Open64; then
2108     cc_type=open64
2109     cc_version=__OPEN64__
2110     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2111     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2112     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2113     speed_cflags='-O2'
2114     size_cflags='-Os'
2115     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2116 fi
2117
2118 test -n "$cc_type" && enable $cc_type ||
2119     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2120
2121 : ${as_default:=$cc}
2122 : ${dep_cc_default:=$cc}
2123 : ${ld_default:=$cc}
2124 set_default ar as dep_cc ld
2125
2126 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2127 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2128
2129 add_cflags $extra_cflags
2130 add_asflags $extra_cflags
2131
2132 if test -n "$sysroot"; then
2133     case "$cc_type" in
2134         gcc|llvm_gcc|clang)
2135             add_cppflags --sysroot="$sysroot"
2136             add_ldflags --sysroot="$sysroot"
2137         ;;
2138         tms470)
2139             add_cppflags -I"$sysinclude"
2140             add_ldflags  --sysroot="$sysroot"
2141         ;;
2142     esac
2143 fi
2144
2145 if test "$cpu" = host; then
2146     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2147
2148     case "$cc_type" in
2149         gcc|llvm_gcc)
2150             check_native(){
2151                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2152                 sed -n "/$1=/{
2153                             s/.*$1=\\([^ ]*\\).*/\\1/
2154                             p
2155                             q
2156                         }" $TMPE
2157             }
2158             cpu=$(check_native -march || check_native -mcpu)
2159         ;;
2160     esac
2161
2162     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2163 fi
2164
2165 # Deal with common $arch aliases
2166 case "$arch" in
2167     arm*)
2168         arch="arm"
2169     ;;
2170     mips|mipsel|IP*)
2171         arch="mips"
2172     ;;
2173     mips64*)
2174         arch="mips"
2175         subarch="mips64"
2176     ;;
2177     parisc|hppa)
2178         arch="parisc"
2179     ;;
2180     parisc64|hppa64)
2181         arch="parisc"
2182         subarch="parisc64"
2183     ;;
2184     "Power Macintosh"|ppc|powerpc)
2185         arch="ppc"
2186     ;;
2187     ppc64|powerpc64)
2188         arch="ppc"
2189         subarch="ppc64"
2190     ;;
2191     s390|s390x)
2192         arch="s390"
2193     ;;
2194     sh4|sh)
2195         arch="sh4"
2196     ;;
2197     sun4u|sparc64)
2198         arch="sparc"
2199         subarch="sparc64"
2200     ;;
2201     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2202         arch="x86"
2203     ;;
2204 esac
2205
2206 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2207 enable $arch
2208
2209 # Add processor-specific flags
2210 if test "$cpu" = generic; then
2211     : do nothing
2212 elif enabled ppc; then
2213
2214     case $(tolower $cpu) in
2215         601|ppc601|powerpc601)
2216             cpuflags="-mcpu=601"
2217             disable altivec
2218         ;;
2219         603*|ppc603*|powerpc603*)
2220             cpuflags="-mcpu=603"
2221             disable altivec
2222         ;;
2223         604*|ppc604*|powerpc604*)
2224             cpuflags="-mcpu=604"
2225             disable altivec
2226         ;;
2227         g3|75*|ppc75*|powerpc75*)
2228             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2229             disable altivec
2230         ;;
2231         g4|745*|ppc745*|powerpc745*)
2232             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2233         ;;
2234         74*|ppc74*|powerpc74*)
2235             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2236         ;;
2237         g5|970|ppc970|powerpc970|power4*)
2238             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2239         ;;
2240         cell)
2241             cpuflags="-mcpu=cell"
2242             enable ldbrx
2243         ;;
2244         e500v2)
2245             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2246             disable altivec
2247         ;;
2248         e500)
2249             cpuflags="-mcpu=8540 -mhard-float"
2250             disable altivec
2251         ;;
2252     esac
2253
2254 elif enabled x86; then
2255
2256     case $cpu in
2257         i[345]86|pentium)
2258             cpuflags="-march=$cpu"
2259             disable mmx
2260         ;;
2261         # targets that do NOT support conditional mov (cmov)
2262         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2263             cpuflags="-march=$cpu"
2264             disable cmov
2265         ;;
2266         # targets that do support conditional mov (cmov)
2267         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2268             cpuflags="-march=$cpu"
2269             enable cmov
2270             enable fast_cmov
2271         ;;
2272         # targets that do support conditional mov but on which it's slow
2273         pentium4|pentium4m|prescott|nocona)
2274             cpuflags="-march=$cpu"
2275             enable cmov
2276             disable fast_cmov
2277         ;;
2278     esac
2279
2280 elif enabled sparc; then
2281
2282     case $cpu in
2283         niagara)
2284             cpuflags="-mcpu=$cpu"
2285             disable vis
2286         ;;
2287         sparc64)
2288             cpuflags="-mcpu=v9"
2289         ;;
2290     esac
2291
2292 elif enabled arm; then
2293
2294     case $cpu in
2295         armv*)
2296             cpuflags="-march=$cpu"
2297             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2298         ;;
2299         *)
2300             cpuflags="-mcpu=$cpu"
2301             case $cpu in
2302                 cortex-a*)                               subarch=armv7a  ;;
2303                 cortex-r*)                               subarch=armv7r  ;;
2304                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2305                 arm11*)                                  subarch=armv6   ;;
2306                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2307                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2308             esac
2309         ;;
2310     esac
2311
2312 elif enabled alpha; then
2313
2314     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2315
2316 elif enabled bfin; then
2317
2318     cpuflags="-mcpu=$cpu"
2319
2320 elif enabled mips; then
2321
2322     cpuflags="-march=$cpu"
2323
2324 elif enabled avr32; then
2325
2326     case $cpu in
2327         ap7[02]0[0-2])
2328             subarch="avr32_ap"
2329             cpuflags="-mpart=$cpu"
2330         ;;
2331         ap)
2332             subarch="avr32_ap"
2333             cpuflags="-march=$cpu"
2334         ;;
2335         uc3[ab]*)
2336             subarch="avr32_uc"
2337             cpuflags="-mcpu=$cpu"
2338         ;;
2339         uc)
2340             subarch="avr32_uc"
2341             cpuflags="-march=$cpu"
2342         ;;
2343     esac
2344
2345 fi
2346
2347 add_cflags $cpuflags
2348 add_asflags $cpuflags
2349
2350 # compiler sanity check
2351 check_exec <<EOF
2352 int main(void){ return 0; }
2353 EOF
2354 if test "$?" != 0; then
2355     echo "$cc is unable to create an executable file."
2356     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2357         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2358         echo "Only do this if you know what cross compiling means."
2359     fi
2360     die "C compiler test failed."
2361 fi
2362
2363 add_cppflags -D_ISOC99_SOURCE
2364 check_cflags -std=c99
2365 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2366 #include <stdlib.h>
2367 EOF
2368 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2369 #include <stdlib.h>
2370 EOF
2371
2372 check_host_cflags -std=c99
2373 check_host_cflags -Wall
2374
2375 case "$arch" in
2376     alpha|ia64|mips|parisc|sparc)
2377         spic=$shared
2378     ;;
2379     x86)
2380         subarch="x86_32"
2381         check_cc <<EOF && subarch="x86_64"
2382         int test[(int)sizeof(char*) - 7];
2383 EOF
2384         if test "$subarch" = "x86_64"; then
2385             spic=$shared
2386         fi
2387     ;;
2388 esac
2389
2390 enable $subarch
2391 enabled spic && enable pic
2392
2393 # OS specific
2394 case $target_os in
2395     haiku)
2396         prefix_default="/boot/common"
2397         network_extralibs="-lnetwork"
2398         host_libs=
2399         ;;
2400     sunos)
2401         FFSERVERLDFLAGS=""
2402         SHFLAGS='-shared -Wl,-h,$$(@F)'
2403         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2404         network_extralibs="-lsocket -lnsl"
2405         add_cppflags -D__EXTENSIONS__
2406         nm_opts='-P -g'
2407         ;;
2408     netbsd)
2409         disable symver
2410         oss_indev_extralibs="-lossaudio"
2411         oss_outdev_extralibs="-lossaudio"
2412         ;;
2413     openbsd)
2414         enable malloc_aligned
2415         # On OpenBSD 4.5. the compiler does not use PIC unless
2416         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2417         # however the generated executable will not do anything
2418         # (simply quits with exit-code 1, no crash, no output).
2419         # Thus explicitly enable PIC here.
2420         enable pic
2421         disable symver
2422         SHFLAGS='-shared'
2423         oss_indev_extralibs="-lossaudio"
2424         oss_outdev_extralibs="-lossaudio"
2425         ;;
2426     dragonfly)
2427         enable malloc_aligned
2428         disable symver
2429         ;;
2430     freebsd)
2431         enable malloc_aligned
2432         ;;
2433     bsd/os)
2434         add_extralibs -lpoll -lgnugetopt
2435         strip="strip -d"
2436         ;;
2437     darwin)
2438         enable malloc_aligned
2439         gas="gas-preprocessor.pl $cc"
2440         enabled ppc && add_asflags -force_cpusubtype_ALL
2441         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2442         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2443         strip="${strip} -x"
2444         add_ldflags -Wl,-dynamic,-search_paths_first
2445         SLIBSUF=".dylib"
2446         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2447         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2448         FFSERVERLDFLAGS=-Wl,-bind_at_load
2449         objformat="macho"
2450         enabled x86_64 && objformat="macho64"
2451         enabled_any pic shared ||
2452             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2453         ;;
2454     mingw32*)
2455         if test $target_os = "mingw32ce"; then
2456             disable network
2457         else
2458             target_os=mingw32
2459         fi
2460         LIBTARGET=i386
2461         if enabled x86_64; then
2462             enable malloc_aligned
2463             LIBTARGET=x64
2464         elif enabled arm; then
2465             LIBTARGET=arm-wince
2466         fi
2467         shlibdir_default="$bindir_default"
2468         SLIBPREF=""
2469         SLIBSUF=".dll"
2470         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2471         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2472         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2473         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2474             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2475             install -d "$(LIBDIR)"; \
2476             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2477         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2478         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'
2479         objformat="win32"
2480         enable dos_paths
2481         check_cflags -fno-common
2482         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2483                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2484                 die "ERROR: MinGW runtime version must be >= 3.15."
2485         add_cppflags -U__STRICT_ANSI__
2486         ;;
2487     cygwin*)
2488         target_os=cygwin
2489         shlibdir_default="$bindir_default"
2490         SLIBPREF="cyg"
2491         SLIBSUF=".dll"
2492         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2493         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2494         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2495         objformat="win32"
2496         enable dos_paths
2497         check_cflags -fno-common
2498         add_cppflags -U__STRICT_ANSI__
2499         ;;
2500     *-dos|freedos|opendos)
2501         network_extralibs="-lsocket"
2502         objformat="coff"
2503         enable dos_paths
2504         add_cppflags -U__STRICT_ANSI__
2505         ;;
2506     linux)
2507         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2508         enable dv1394
2509         ;;
2510     irix*)
2511         target_os=irix
2512         ranlib="echo ignoring ranlib"
2513         ;;
2514     os/2*)
2515         strip="lxlite -CS"
2516         ln_s="cp -f"
2517         objformat="aout"
2518         add_cppflags -D_GNU_SOURCE
2519         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2520         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2521         FFSERVERLDFLAGS=""
2522         LIBSUF="_s.a"
2523         SLIBPREF=""
2524         SLIBSUF=".dll"
2525         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2526         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2527         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2528           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2529           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2530           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2531           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2532           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2533         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2534           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2535         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2536         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2537         enable dos_paths
2538         ;;
2539     gnu/kfreebsd)
2540         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2541         ;;
2542     gnu)
2543         ;;
2544     qnx)
2545         add_cppflags -D_QNX_SOURCE
2546         network_extralibs="-lsocket"
2547         ;;
2548     symbian)
2549         SLIBSUF=".dll"
2550         enable dos_paths
2551         add_cflags --include=$sysinclude/gcce/gcce.h
2552         ;;
2553     none)
2554         ;;
2555     *)
2556         die "Unknown OS '$target_os'."
2557         ;;
2558 esac
2559
2560 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2561
2562 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2563
2564 set_default $PATHS_LIST
2565
2566 # we need to build at least one lib type
2567 if ! enabled_any static shared; then
2568     cat <<EOF
2569 At least one library type must be built.
2570 Specify --enable-static to build the static libraries or --enable-shared to
2571 build the shared libraries as well. To only build the shared libraries specify
2572 --disable-static in addition to --enable-shared.
2573 EOF
2574     exit 1;
2575 fi
2576
2577 disabled static && LIBNAME=""
2578
2579 die_license_disabled() {
2580     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2581 }
2582
2583 die_license_disabled gpl libx264
2584 die_license_disabled gpl libxavs
2585 die_license_disabled gpl libxvid
2586 die_license_disabled gpl x11grab
2587
2588 die_license_disabled nonfree libfaac
2589
2590 die_license_disabled version3 libopencore_amrnb
2591 die_license_disabled version3 libopencore_amrwb
2592 die_license_disabled version3 libvo_aacenc
2593 die_license_disabled version3 libvo_amrwbenc
2594
2595 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2596
2597 disabled optimizations || check_cflags -fomit-frame-pointer
2598
2599 enable_pic() {
2600     enable pic
2601     add_cppflags -DPIC
2602     add_cflags   -fPIC
2603     add_asflags  -fPIC
2604 }
2605
2606 enabled pic && enable_pic
2607
2608 check_cc <<EOF || die "Symbol mangling check failed."
2609 int ff_extern;
2610 EOF
2611 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2612 extern_prefix=${sym%%ff_extern*}
2613
2614 check_cc <<EOF && enable inline_asm
2615 void foo(void) { __asm__ volatile ("" ::); }
2616 EOF
2617
2618 _restrict=
2619 for restrict_keyword in restrict __restrict__ __restrict; do
2620     check_cc <<EOF && _restrict=$restrict_keyword && break
2621 void foo(char * $restrict_keyword p);
2622 EOF
2623 done
2624
2625 check_cc <<EOF && enable attribute_packed
2626 struct { int x; } __attribute__((packed)) x;
2627 EOF
2628
2629 check_cc <<EOF && enable attribute_may_alias
2630 union { int x; } __attribute__((may_alias)) x;
2631 EOF
2632
2633 check_cc <<EOF || die "endian test failed"
2634 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2635 EOF
2636 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2637
2638 if enabled alpha; then
2639
2640     check_cflags -mieee
2641
2642 elif enabled arm; then
2643
2644     enabled thumb && check_cflags -mthumb || check_cflags -marm
2645     nogas=die
2646
2647     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2648         enable vfp_args
2649     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2650         case "${cross_prefix:-$cc}" in
2651             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2652             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2653 __asm__ (".eabi_attribute 28, 1");
2654 int main(void) { return 0; }
2655 EOF
2656         esac
2657         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2658     fi
2659
2660     # We have to check if pld is a nop and disable it.
2661     check_asm pld '"pld [r0]"'
2662
2663     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2664     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2665     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2666     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2667     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2668     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2669     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2670
2671     enabled_all armv6t2 shared !pic && enable_pic
2672
2673 elif enabled mips; then
2674
2675     check_asm loongson '"dmult.g $1, $2, $3"'
2676     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2677
2678 elif enabled ppc; then
2679
2680     enable local_aligned_8 local_aligned_16
2681
2682     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2683     check_asm ibm_asm   '"add 0, 0, 0"'
2684     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2685     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2686
2687     # AltiVec flags: The FSF version of GCC differs from the Apple version
2688     if enabled altivec; then
2689         nogas=warn
2690         check_cflags -maltivec -mabi=altivec &&
2691         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2692         check_cflags -faltivec
2693
2694         # check if our compiler supports Motorola AltiVec C API
2695         check_cc <<EOF || disable altivec
2696 $inc_altivec_h
2697 int main(void) {
2698     vector signed int v1, v2, v3;
2699     v1 = vec_add(v2,v3);
2700     return 0;
2701 }
2702 EOF
2703
2704         # check if our compiler supports braces for vector declarations
2705         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2706 $inc_altivec_h
2707 int main (void) { (vector int) {1}; return 0; }
2708 EOF
2709     fi
2710
2711 elif enabled sparc; then
2712
2713     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2714         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2715
2716 elif enabled x86; then
2717
2718     enable local_aligned_8 local_aligned_16
2719
2720     # check whether EBP is available on x86
2721     # As 'i' is stored on the stack, this program will crash
2722     # if the base pointer is used to access it because the
2723     # base pointer is cleared in the inline assembly code.
2724     check_exec_crash <<EOF && enable ebp_available
2725     volatile int i=0;
2726     __asm__ volatile (
2727         "xorl %%ebp, %%ebp"
2728     ::: "%ebp");
2729     return i;
2730 EOF
2731
2732     # check whether EBX is available on x86
2733     check_asm ebx_available '""::"b"(0)' &&
2734         check_asm ebx_available '"":::"%ebx"'
2735
2736     # check whether xmm clobbers are supported
2737     check_asm xmm_clobbers '"":::"%xmm0"'
2738
2739     # check whether more than 10 operands are supported
2740     check_cc <<EOF && enable ten_operands
2741 int main(void) {
2742     int x=0;
2743     __asm__ volatile(
2744         ""
2745         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2746     );
2747     return 0;
2748 }
2749 EOF
2750
2751     # check whether binutils is new enough to compile SSSE3/MMX2
2752     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2753     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2754
2755     check_asm bswap '"bswap %%eax" ::: "%eax"'
2756
2757     if ! disabled_any asm mmx yasm; then
2758         if check_cmd $yasmexe --version; then
2759             enabled x86_64 && yasm_extra="-m amd64"
2760             yasm_debug="-g dwarf2"
2761         elif check_cmd nasm -v; then
2762             yasmexe=nasm
2763             yasm_debug="-g -F dwarf"
2764             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2765         fi
2766
2767         YASMFLAGS="-f $objformat $yasm_extra"
2768         enabled pic               && append YASMFLAGS "-DPIC"
2769         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2770         case "$objformat" in
2771             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2772         esac
2773
2774         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2775             die "yasm not found, use --disable-yasm for a crippled build"
2776         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2777     fi
2778
2779     case "$cpu" in
2780         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2781             disable fast_clz
2782         ;;
2783     esac
2784
2785 fi
2786
2787 if enabled asm; then
2788     as=${gas:=$as}
2789     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2790         $nogas "GNU assembler not found, install gas-preprocessor"
2791 fi
2792
2793 check_ldflags -Wl,--as-needed
2794
2795 if check_func dlopen; then
2796     ldl=
2797 elif check_func dlopen -ldl; then
2798     ldl=-ldl
2799 fi
2800
2801 if enabled network; then
2802     check_type "sys/types.h sys/socket.h" socklen_t
2803     check_type netdb.h "struct addrinfo"
2804     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2805     check_type netinet/in.h "struct sockaddr_in6"
2806     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2807     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2808     # Prefer arpa/inet.h over winsock2
2809     if check_header arpa/inet.h ; then
2810         check_func closesocket
2811     elif check_header winsock2.h ; then
2812         check_func_headers winsock2.h closesocket -lws2 && \
2813             network_extralibs="-lws2" || \
2814         { check_func_headers winsock2.h closesocket -lws2_32 && \
2815             network_extralibs="-lws2_32"; }
2816         check_type ws2tcpip.h socklen_t
2817         check_type ws2tcpip.h "struct addrinfo"
2818         check_type ws2tcpip.h "struct ipv6_mreq"
2819         check_type ws2tcpip.h "struct sockaddr_in6"
2820         check_type ws2tcpip.h "struct sockaddr_storage"
2821         check_struct winsock2.h "struct sockaddr" sa_len
2822     else
2823         disable network
2824     fi
2825 fi
2826
2827 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2828 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2829
2830 check_func  fcntl
2831 check_func  fork
2832 check_func  getaddrinfo $network_extralibs
2833 check_func  gethrtime
2834 check_func  getrusage
2835 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2836 check_func  inet_aton $network_extralibs
2837 check_func  isatty
2838 check_func  localtime_r
2839 check_func  ${malloc_prefix}memalign            && enable memalign
2840 check_func  mkstemp
2841 check_func  mmap
2842 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2843 check_func  setrlimit
2844 check_func  strerror_r
2845 check_func  strtok_r
2846 check_func_headers conio.h kbhit
2847 check_func_headers io.h setmode
2848 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2849 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2850 check_func_headers windows.h GetProcessTimes
2851 check_func_headers windows.h MapViewOfFile
2852 check_func_headers windows.h VirtualAlloc
2853
2854 check_header dlfcn.h
2855 check_header dxva2api.h
2856 check_header libcrystalhd/libcrystalhd_if.h
2857 check_header malloc.h
2858 check_header poll.h
2859 check_header sys/mman.h
2860 check_header sys/resource.h
2861 check_header sys/select.h
2862 check_header termios.h
2863 check_header vdpau/vdpau.h
2864 check_header vdpau/vdpau_x11.h
2865 check_header X11/extensions/XvMClib.h
2866
2867 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2868
2869 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2870 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2871
2872 # check for some common methods of building with pthread support
2873 # do this before the optional library checks as some of them require pthreads
2874 if ! disabled pthreads && ! enabled w32threads; then
2875     enable pthreads
2876     if check_func pthread_create; then
2877         :
2878     elif check_func pthread_create -pthread; then
2879         add_cflags -pthread
2880         add_extralibs -pthread
2881     elif check_func pthread_create -pthreads; then
2882         add_cflags -pthreads
2883         add_extralibs -pthreads
2884     elif check_func pthread_create -lpthreadGC2; then
2885         add_extralibs -lpthreadGC2
2886     elif ! check_lib pthread.h pthread_create -lpthread; then
2887         disable pthreads
2888     fi
2889 fi
2890
2891 for thread in $THREADS_LIST; do
2892     if enabled $thread; then
2893         test -n "$thread_type" &&
2894             die "ERROR: Only one thread type must be selected." ||
2895             thread_type="$thread"
2896     fi
2897 done
2898
2899 check_lib math.h sin -lm && LIBM="-lm"
2900 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2901 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2902
2903 check_mathfunc exp2
2904 check_mathfunc exp2f
2905 check_mathfunc llrint
2906 check_mathfunc llrintf
2907 check_mathfunc log2
2908 check_mathfunc log2f
2909 check_mathfunc lrint
2910 check_mathfunc lrintf
2911 check_mathfunc round
2912 check_mathfunc roundf
2913 check_mathfunc trunc
2914 check_mathfunc truncf
2915
2916 # these are off by default, so fail if requested and not available
2917 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2918 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2919 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2920 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2921 enabled libdirac   && require_pkg_config dirac                          \
2922     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2923     "dirac_decoder_init dirac_encoder_init"
2924 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2925 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2926 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2927 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2928 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2929 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2930 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2931 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2932 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2933 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2934 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2935 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2936 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2937 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2938 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2939 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2940 enabled libvpx     && {
2941     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2942                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2943     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2944                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2945 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2946                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2947                         die "ERROR: libx264 version must be >= 0.115."; }
2948 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2949 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
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 -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,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     echo "10 operands supported     ${ten_operands-no}"
3192 fi
3193 if enabled arm; then
3194     echo "ARMv5TE enabled           ${armv5te-no}"
3195     echo "ARMv6 enabled             ${armv6-no}"
3196     echo "ARMv6T2 enabled           ${armv6t2-no}"
3197     echo "ARM VFP enabled           ${armvfp-no}"
3198     echo "IWMMXT enabled            ${iwmmxt-no}"
3199     echo "NEON enabled              ${neon-no}"
3200 fi
3201 if enabled mips; then
3202     echo "MMI enabled               ${mmi-no}"
3203 fi
3204 if enabled ppc; then
3205     echo "AltiVec enabled           ${altivec-no}"
3206     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3207     echo "dcbzl available           ${dcbzl-no}"
3208 fi
3209 if enabled sparc; then
3210     echo "VIS enabled               ${vis-no}"
3211 fi
3212 echo "debug symbols             ${debug-no}"
3213 echo "strip symbols             ${stripping-no}"
3214 echo "optimize for size         ${small-no}"
3215 echo "optimizations             ${optimizations-no}"
3216 echo "static                    ${static-no}"
3217 echo "shared                    ${shared-no}"
3218 echo "postprocessing support    ${postproc-no}"
3219 echo "new filter support        ${avfilter-no}"
3220 echo "network support           ${network-no}"
3221 echo "threading support         ${thread_type-no}"
3222 echo "SDL support               ${sdl-no}"
3223 echo "Sun medialib support      ${mlib-no}"
3224 echo "AVISynth enabled          ${avisynth-no}"
3225 echo "libcelt enabled           ${libcelt-no}"
3226 echo "frei0r enabled            ${frei0r-no}"
3227 echo "libdc1394 support         ${libdc1394-no}"
3228 echo "libdirac enabled          ${libdirac-no}"
3229 echo "libfaac enabled           ${libfaac-no}"
3230 echo "libgsm enabled            ${libgsm-no}"
3231 echo "libmp3lame enabled        ${libmp3lame-no}"
3232 echo "libnut enabled            ${libnut-no}"
3233 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3234 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3235 echo "libopencv support         ${libopencv-no}"
3236 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3237 echo "librtmp enabled           ${librtmp-no}"
3238 echo "libschroedinger enabled   ${libschroedinger-no}"
3239 echo "libspeex enabled          ${libspeex-no}"
3240 echo "libtheora enabled         ${libtheora-no}"
3241 echo "libva enabled             ${vaapi-no}"
3242 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3243 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3244 echo "libvorbis enabled         ${libvorbis-no}"
3245 echo "libvpx enabled            ${libvpx-no}"
3246 echo "libx264 enabled           ${libx264-no}"
3247 echo "libxavs enabled           ${libxavs-no}"
3248 echo "libxvid enabled           ${libxvid-no}"
3249 echo "zlib enabled              ${zlib-no}"
3250 echo "bzlib enabled             ${bzlib-no}"
3251 echo
3252
3253 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3254     echo "Enabled ${type}s:"
3255     eval list=\$$(toupper $type)_LIST
3256     print_enabled '_*' $list | sort | pr -r -3 -t
3257     echo
3258 done
3259
3260 license="LGPL version 2.1 or later"
3261 if enabled nonfree; then
3262     license="nonfree and unredistributable"
3263 elif enabled gplv3; then
3264     license="GPL version 3 or later"
3265 elif enabled lgplv3; then
3266     license="LGPL version 3 or later"
3267 elif enabled gpl; then
3268     license="GPL version 2 or later"
3269 fi
3270
3271 echo "License: $license"
3272
3273 echo "Creating config.mak and config.h..."
3274
3275 # build tree in object directory if source path is different from current one
3276 if enabled source_path_used; then
3277     DIRS="
3278         doc
3279         libavcodec
3280         libavcodec/$arch
3281         libavdevice
3282         libavfilter
3283         libavfilter/$arch
3284         libavfilter/libmpcodecs
3285         libavfilter/libmpcodecs/libvo
3286         libavformat
3287         libavutil
3288         libavutil/$arch
3289         libpostproc
3290         libswscale
3291         libswscale/$arch
3292         tests
3293         tools
3294     "
3295     FILES="
3296         Makefile
3297         common.mak
3298         subdir.mak
3299         doc/Makefile
3300         doc/texi2pod.pl
3301         libavcodec/Makefile
3302         libavcodec/${arch}/Makefile
3303         libavdevice/Makefile
3304         libavfilter/Makefile
3305         libavfilter/${arch}/Makefile
3306         libavformat/Makefile
3307         libavutil/Makefile
3308         libpostproc/Makefile
3309         libswscale/Makefile
3310         tests/Makefile
3311     "
3312     map 'mkdir -p $v' $DIRS;
3313     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3314 fi
3315
3316 enabled stripping || strip="echo skipping strip"
3317
3318 config_files="$TMPH config.mak"
3319
3320 cat > config.mak <<EOF
3321 # Automatically generated by configure - do not modify!
3322 ifndef FFMPEG_CONFIG_MAK
3323 FFMPEG_CONFIG_MAK=1
3324 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3325 prefix=$prefix
3326 LIBDIR=\$(DESTDIR)$libdir
3327 SHLIBDIR=\$(DESTDIR)$shlibdir
3328 INCDIR=\$(DESTDIR)$incdir
3329 BINDIR=\$(DESTDIR)$bindir
3330 DATADIR=\$(DESTDIR)$datadir
3331 MANDIR=\$(DESTDIR)$mandir
3332 SRC_PATH=$source_path
3333 CC_IDENT=$cc_ident
3334 ARCH=$arch
3335 CC=$cc
3336 AS=$as
3337 LD=$ld
3338 DEPCC=$dep_cc
3339 YASM=$yasmexe
3340 YASMDEP=$yasmexe
3341 AR=$ar
3342 RANLIB=$ranlib
3343 CP=cp -p
3344 LN_S=$ln_s
3345 STRIP=$strip
3346 CPPFLAGS=$CPPFLAGS
3347 CFLAGS=$CFLAGS
3348 ASFLAGS=$ASFLAGS
3349 CC_O=$CC_O
3350 LDFLAGS=$LDFLAGS
3351 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3352 SHFLAGS=$SHFLAGS
3353 YASMFLAGS=$YASMFLAGS
3354 BUILDSUF=$build_suffix
3355 FULLNAME=$FULLNAME
3356 LIBPREF=$LIBPREF
3357 LIBSUF=$LIBSUF
3358 LIBNAME=$LIBNAME
3359 SLIBPREF=$SLIBPREF
3360 SLIBSUF=$SLIBSUF
3361 EXESUF=$EXESUF
3362 EXTRA_VERSION=$extra_version
3363 DEPFLAGS=$DEPFLAGS
3364 CCDEP=$CCDEP
3365 ASDEP=$ASDEP
3366 CC_DEPFLAGS=$CC_DEPFLAGS
3367 AS_DEPFLAGS=$AS_DEPFLAGS
3368 HOSTCC=$host_cc
3369 HOSTCFLAGS=$host_cflags
3370 HOSTEXESUF=$HOSTEXESUF
3371 HOSTLDFLAGS=$host_ldflags
3372 HOSTLIBS=$host_libs
3373 TARGET_EXEC=$target_exec
3374 TARGET_PATH=$target_path
3375 SDL_LIBS=$sdl_libs
3376 SDL_CFLAGS=$sdl_cflags
3377 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3378 EXTRALIBS=$extralibs
3379 INSTALL=$install
3380 LIBTARGET=${LIBTARGET}
3381 SLIBNAME=${SLIBNAME}
3382 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3383 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3384 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3385 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3386 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3387 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3388 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3389 EOF
3390
3391 get_version(){
3392     name=$1
3393     file=$source_path/$2
3394     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3395     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3396     lcname=$(tolower $name)
3397     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3398     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3399 }
3400
3401 get_version LIBSWSCALE  libswscale/swscale.h
3402 get_version LIBPOSTPROC libpostproc/postprocess.h
3403 get_version LIBAVCODEC  libavcodec/version.h
3404 get_version LIBAVDEVICE libavdevice/avdevice.h
3405 get_version LIBAVFORMAT libavformat/version.h
3406 get_version LIBAVUTIL   libavutil/avutil.h
3407 get_version LIBAVFILTER libavfilter/avfilter.h
3408
3409 cat > $TMPH <<EOF
3410 /* Automatically generated by configure - do not modify! */
3411 #ifndef FFMPEG_CONFIG_H
3412 #define FFMPEG_CONFIG_H
3413 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3414 #define FFMPEG_LICENSE "$(c_escape $license)"
3415 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3416 #define CC_TYPE "$cc_type"
3417 #define CC_VERSION $cc_version
3418 #define restrict $_restrict
3419 #define EXTERN_PREFIX "${extern_prefix}"
3420 #define EXTERN_ASM ${extern_prefix}
3421 #define SLIBSUF "$SLIBSUF"
3422 EOF
3423
3424 test -n "$malloc_prefix" &&
3425     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3426
3427 if enabled small || disabled optimizations; then
3428     echo "#undef  av_always_inline"  >> $TMPH
3429     if enabled small; then
3430         echo "#define av_always_inline inline"  >> $TMPH
3431     else
3432         echo "#define av_always_inline av_unused"  >> $TMPH
3433     fi
3434 fi
3435
3436 if enabled yasm; then
3437     append config_files $TMPASM
3438     printf '' >$TMPASM
3439 fi
3440
3441 print_config ARCH_   "$config_files" $ARCH_LIST
3442 print_config HAVE_   "$config_files" $HAVE_LIST
3443 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3444                                      $CONFIG_EXTRA      \
3445                                      $DECODER_LIST      \
3446                                      $ENCODER_LIST      \
3447                                      $HWACCEL_LIST      \
3448                                      $PARSER_LIST       \
3449                                      $BSF_LIST          \
3450                                      $DEMUXER_LIST      \
3451                                      $MUXER_LIST        \
3452                                      $FILTER_LIST       \
3453                                      $PROTOCOL_LIST     \
3454                                      $INDEV_LIST        \
3455                                      $OUTDEV_LIST       \
3456
3457 cat >>config.mak <<EOF
3458 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3459 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3460 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3461 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3462 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3463 EOF
3464
3465 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3466 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3467
3468 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3469 cp_if_changed $TMPH config.h
3470 touch .config
3471
3472 enabled yasm && cp_if_changed $TMPASM config.asm
3473
3474 cat > $TMPH <<EOF
3475 /* Generated by ffconf */
3476 #ifndef AVUTIL_AVCONFIG_H
3477 #define AVUTIL_AVCONFIG_H
3478 EOF
3479
3480 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3481
3482 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3483
3484 cp_if_changed $TMPH libavutil/avconfig.h
3485
3486 test -n "$WARNINGS" && printf "\n$WARNINGS"
3487
3488 # build pkg-config files
3489
3490 pkgconfig_generate(){
3491 name=$1
3492 shortname=${name#lib}${build_suffix}
3493 comment=$2
3494 version=$3
3495 libs=$4
3496 requires=$5
3497 enabled ${name#lib} || return 0
3498 cat <<EOF > $name/$name.pc
3499 prefix=$prefix
3500 exec_prefix=\${prefix}
3501 libdir=$libdir
3502 includedir=$incdir
3503
3504 Name: $name
3505 Description: $comment
3506 Version: $version
3507 Requires: $(enabled shared || echo $requires)
3508 Requires.private: $(enabled shared && echo $requires)
3509 Conflicts:
3510 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3511 Libs.private: $(enabled shared && echo $libs)
3512 Cflags: -I\${includedir}
3513 EOF
3514 cat <<EOF > $name/$name-uninstalled.pc
3515 prefix=
3516 exec_prefix=
3517 libdir=\${pcfiledir}
3518 includedir=${source_path}
3519
3520 Name: $name
3521 Description: $comment
3522 Version: $version
3523 Requires: $requires
3524 Conflicts:
3525 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3526 Cflags: -I\${includedir}
3527 EOF
3528 }
3529
3530 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3531 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3532 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3533 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3534 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3535 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3536 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"