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 AS_O='-o $@'
1708 CC_O='-o $@'
1709
1710 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1711 host_libs='-lm'
1712
1713 target_path='$(CURDIR)'
1714
1715 # since the object filename is not given with the -MM flag, the compiler
1716 # is only able to print the basename, and we must add the path ourselves
1717 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1718 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1719
1720 # find source path
1721 if test -f configure; then
1722     source_path=.
1723     disable source_path_used
1724 else
1725     source_path=$(cd $(dirname "$0"); pwd)
1726     enable source_path_used
1727     echo "$source_path" | grep -q '[[:blank:]]' &&
1728         die "Out of tree builds are impossible with whitespace in source path."
1729     test -e "$source_path/config.h" &&
1730         die "Out of tree builds are impossible with config.h in source dir."
1731 fi
1732
1733 for v in "$@"; do
1734     r=${v#*=}
1735     l=${v%"$r"}
1736     r=$(sh_quote "$r")
1737     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1738 done
1739
1740 find_things(){
1741     thing=$1
1742     pattern=$2
1743     file=$source_path/$3
1744     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1745 }
1746
1747 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1748 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1749 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1750 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1751 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1752 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1753 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1754 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1755 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1756 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1757 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1758
1759 find_tests(){
1760     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1761 }
1762
1763 ACODEC_TESTS=$(find_tests acodec)
1764 VCODEC_TESTS=$(find_tests vsynth1)
1765 LAVF_TESTS=$(find_tests lavf)
1766 LAVFI_TESTS=$(find_tests lavfi)
1767 SEEK_TESTS=$(find_tests seek seek_)
1768
1769 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1770
1771 for n in $COMPONENT_LIST; do
1772     v=$(toupper ${n%s})_LIST
1773     eval enable \$$v
1774     eval ${n}_if_any="\$$v"
1775 done
1776
1777 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1778
1779 die_unknown(){
1780     echo "Unknown option \"$1\"."
1781     echo "See $0 --help for available options."
1782     exit 1
1783 }
1784
1785 show_list() {
1786     suffix=_$1
1787     shift
1788     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1789     exit 0
1790 }
1791
1792 for opt do
1793     optval="${opt#*=}"
1794     case "$opt" in
1795     --extra-ldflags=*) add_ldflags $optval
1796     ;;
1797     --extra-libs=*) add_extralibs $optval
1798     ;;
1799     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1800     ;;
1801     --enable-debug=*) debuglevel="$optval"
1802     ;;
1803     --disable-everything)
1804     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1805     ;;
1806     --enable-*=*|--disable-*=*)
1807     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1808     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1809     eval list=\$$(toupper $thing)_LIST
1810     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1811     $action $(filter "$name" $list)
1812     ;;
1813     --enable-?*|--disable-?*)
1814     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1815     if is_in $option $COMPONENT_LIST; then
1816         test $action = disable && action=unset
1817         eval $action \$$(toupper ${option%s})_LIST
1818     elif is_in $option $CMDLINE_SELECT; then
1819         $action $option
1820     else
1821         die_unknown $opt
1822     fi
1823     ;;
1824     --list-*)
1825         NAME="${opt#--list-}"
1826         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1827         NAME=${NAME%s}
1828         eval show_list $NAME \$$(toupper $NAME)_LIST
1829     ;;
1830     --help|-h) show_help
1831     ;;
1832     *)
1833     optname="${opt%%=*}"
1834     optname="${optname#--}"
1835     optname=$(echo "$optname" | sed 's/-/_/g')
1836     if is_in $optname $CMDLINE_SET; then
1837         eval $optname='$optval'
1838     elif is_in $optname $CMDLINE_APPEND; then
1839         append $optname "$optval"
1840     else
1841          die_unknown $opt
1842     fi
1843     ;;
1844     esac
1845 done
1846
1847 disabled logging && logfile=/dev/null
1848
1849 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1850 set >> $logfile
1851
1852 test -n "$cross_prefix" && enable cross_compile
1853
1854 if enabled cross_compile; then
1855     test -n "$arch" && test -n "$target_os" ||
1856         die "Must specify target arch and OS when cross-compiling"
1857 fi
1858
1859 set_default arch target_os
1860
1861 ar_default="${cross_prefix}${ar_default}"
1862 cc_default="${cross_prefix}${cc_default}"
1863 nm_default="${cross_prefix}${nm_default}"
1864 pkg_config_default="${cross_prefix}${pkg_config_default}"
1865 ranlib="${cross_prefix}${ranlib}"
1866 strip_default="${cross_prefix}${strip_default}"
1867
1868 sysinclude_default="${sysroot}/usr/include"
1869
1870 set_default cc nm pkg_config strip sysinclude
1871 enabled cross_compile || host_cc_default=$cc
1872 set_default host_cc
1873
1874 if ! $pkg_config --version >/dev/null 2>&1; then
1875     warn "$pkg_config not found, library detection may fail."
1876     pkg_config=false
1877 fi
1878
1879 exesuf() {
1880     case $1 in
1881         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1882     esac
1883 }
1884
1885 EXESUF=$(exesuf $target_os)
1886 HOSTEXESUF=$(exesuf $host_os)
1887
1888 # set temporary file name
1889 : ${TMPDIR:=$TEMPDIR}
1890 : ${TMPDIR:=$TMP}
1891 : ${TMPDIR:=/tmp}
1892
1893 if ! check_cmd mktemp -u XXXXXX; then
1894     # simple replacement for missing mktemp
1895     # NOT SAFE FOR GENERAL USE
1896     mktemp(){
1897         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1898     }
1899 fi
1900
1901 tmpfile(){
1902     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1903         (set -C; exec > $tmp) 2>/dev/null ||
1904         die "Unable to create temporary file in $TMPDIR."
1905     append TMPFILES $tmp
1906     eval $1=$tmp
1907 }
1908
1909 trap 'rm -f -- $TMPFILES' EXIT
1910
1911 tmpfile TMPC  .c
1912 tmpfile TMPE  $EXESUF
1913 tmpfile TMPH  .h
1914 tmpfile TMPO  .o
1915 tmpfile TMPS  .S
1916 tmpfile TMPV  .ver
1917 tmpfile TMPSH .sh
1918 tmpfile TMPASM .asm
1919
1920 unset -f mktemp
1921
1922 chmod +x $TMPE
1923
1924 # make sure we can execute files in $TMPDIR
1925 cat > $TMPSH 2>> $logfile <<EOF
1926 #! /bin/sh
1927 EOF
1928 chmod +x $TMPSH >> $logfile 2>&1
1929 if ! $TMPSH >> $logfile 2>&1; then
1930     cat <<EOF
1931 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1932 variable to another directory and make sure that it is not mounted noexec.
1933 EOF
1934     die "Sanity test failed."
1935 fi
1936
1937 filter_cflags=echo
1938 filter_cppflags=echo
1939 filter_asflags=echo
1940
1941 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1942     cc_type=llvm_gcc
1943     cc_version=__VERSION__
1944     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1945     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1946     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948     speed_cflags='-O3'
1949     size_cflags='-Os'
1950 elif $cc -v 2>&1 | grep -qi ^gcc; then
1951     cc_type=gcc
1952     cc_version=__VERSION__
1953     gcc_version=$($cc --version | head -n1)
1954     gcc_basever=$($cc -dumpversion)
1955     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1956     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1957     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1958     if ! $cc -dumpversion | grep -q '^2\.'; then
1959         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1961     fi
1962     speed_cflags='-O3'
1963     size_cflags='-Os'
1964 elif $cc --version 2>/dev/null | grep -q Intel; then
1965     cc_type=icc
1966     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1967     cc_ident=$($cc --version | head -n1)
1968     icc_version=$($cc -dumpversion)
1969     CC_DEPFLAGS='-MMD'
1970     AS_DEPFLAGS='-MMD'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973     noopt_cflags='-O1'
1974 elif $cc -v 2>&1 | grep -q xlc; then
1975     cc_type=xlc
1976     cc_version="AV_STRINGIFY(__IBMC__)"
1977     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1978     speed_cflags='-O5'
1979     size_cflags='-O5 -qcompact'
1980 elif $cc -V 2>/dev/null | grep -q Compaq; then
1981     cc_type=ccc
1982     cc_version="AV_STRINGIFY(__DECC_VER)"
1983     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1984     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1985     debuglevel=3
1986     add_ldflags -Wl,-z,now # calls to libots crash without this
1987     speed_cflags='-fast'
1988     size_cflags='-O1'
1989 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1990     test -d "$sysroot" || die "No valid sysroot specified."
1991     cc_type=armcc
1992     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1993     cc_ident=$($cc --vsn | head -n1)
1994     armcc_conf="$PWD/armcc.conf"
1995     $cc --arm_linux_configure                 \
1996         --arm_linux_config_file="$armcc_conf" \
1997         --configure_sysroot="$sysroot"        \
1998         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1999         die "Error creating armcc configuration file."
2000     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2001     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2002     as_default="${cross_prefix}gcc"
2003     CC_DEPFLAGS='-MMD'
2004     AS_DEPFLAGS='-MMD'
2005     speed_cflags='-O3'
2006     size_cflags='-Os'
2007     filter_asflags="filter_out -W${armcc_opt}*"
2008 elif $cc -version 2>/dev/null | grep -q TMS470; then
2009     cc_type=tms470
2010     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2011     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2012     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2013     CC_O='-fr=$(@D)'
2014     as_default="${cross_prefix}gcc"
2015     ld_default="${cross_prefix}gcc"
2016     TMPO=$(basename $TMPC .c).o
2017     append TMPFILES $TMPO
2018     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2019     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2020     AS_DEPFLAGS='-MMD'
2021     speed_cflags='-O3 -mf=5'
2022     size_cflags='-O3 -mf=2'
2023     filter_cflags=tms470_flags
2024     tms470_flags(){
2025         for flag; do
2026             case $flag in
2027                 -march=*|-mcpu=*)
2028                     case "${flag#*=}" in
2029                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2030                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2031                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2032                         armv6*|arm11*)          echo -mv=6   ;;
2033                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2034                                                 echo -mv=5e  ;;
2035                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2036                     esac
2037                     ;;
2038                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2039                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2040                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2041                 -msoft-float)   echo --float_support=vfplib       ;;
2042                 -O[0-3]|-mf=*)  echo $flag                        ;;
2043                 -g)             echo -g -mn                       ;;
2044                 -pds=*)         echo $flag                        ;;
2045             esac
2046         done
2047     }
2048 elif $cc -v 2>&1 | grep -q clang; then
2049     cc_type=clang
2050     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2051         cc_version=__clang_version__ || cc_version=__VERSION__
2052     cc_ident=$($cc --version | head -n1)
2053     CC_DEPFLAGS='-MMD'
2054     AS_DEPFLAGS='-MMD'
2055     speed_cflags='-O3'
2056     size_cflags='-Os'
2057 elif $cc -V 2>&1 | grep -q Sun; then
2058     cc_type=suncc
2059     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2060     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2061     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2062     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2063     speed_cflags='-O5'
2064     size_cflags='-O5 -xspace'
2065     filter_cflags=suncc_flags
2066     suncc_flags(){
2067         for flag; do
2068             case $flag in
2069                 -march=*|-mcpu=*)
2070                     case "${flag#*=}" in
2071                         native)                   echo -xtarget=native       ;;
2072                         v9|niagara)               echo -xarch=sparc          ;;
2073                         ultrasparc)               echo -xarch=sparcvis       ;;
2074                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2075                         i586|pentium)             echo -xchip=pentium        ;;
2076                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2077                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2078                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2079                         pentium4*)          echo -xtarget=pentium4           ;;
2080                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2081                         *-sse3)             echo -xarch=sse3                 ;;
2082                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2083                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2084                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2085                         k8|opteron|athlon64|athlon-fx)
2086                                                   echo -xarch=sse2a          ;;
2087                         athlon*)                  echo -xarch=pentium_proa   ;;
2088                     esac
2089                     ;;
2090                 -std=c99)             echo -xc99              ;;
2091                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2092                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2093                 -W*,*)                echo $flag              ;;
2094                 -f*-*|-W*)                                    ;;
2095                 *)                    echo $flag              ;;
2096             esac
2097         done
2098     }
2099 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2100     cc_type=pathscale
2101     cc_version=__PATHSCALE__
2102     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2103     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2104     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2105     speed_cflags='-O2'
2106     size_cflags='-Os'
2107     filter_cflags='filter_out -Wdisabled-optimization'
2108 elif $cc -v 2>&1 | grep -q Open64; then
2109     cc_type=open64
2110     cc_version=__OPEN64__
2111     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2112     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2113     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2114     speed_cflags='-O2'
2115     size_cflags='-Os'
2116     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2117 fi
2118
2119 test -n "$cc_type" && enable $cc_type ||
2120     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2121
2122 : ${as_default:=$cc}
2123 : ${dep_cc_default:=$cc}
2124 : ${ld_default:=$cc}
2125 set_default ar as dep_cc ld
2126
2127 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2128 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2129
2130 add_cflags $extra_cflags
2131 add_asflags $extra_cflags
2132
2133 if test -n "$sysroot"; then
2134     case "$cc_type" in
2135         gcc|llvm_gcc|clang)
2136             add_cppflags --sysroot="$sysroot"
2137             add_ldflags --sysroot="$sysroot"
2138         ;;
2139         tms470)
2140             add_cppflags -I"$sysinclude"
2141             add_ldflags  --sysroot="$sysroot"
2142         ;;
2143     esac
2144 fi
2145
2146 if test "$cpu" = host; then
2147     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2148
2149     case "$cc_type" in
2150         gcc|llvm_gcc)
2151             check_native(){
2152                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2153                 sed -n "/$1=/{
2154                             s/.*$1=\\([^ ]*\\).*/\\1/
2155                             p
2156                             q
2157                         }" $TMPE
2158             }
2159             cpu=$(check_native -march || check_native -mcpu)
2160         ;;
2161     esac
2162
2163     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2164 fi
2165
2166 # Deal with common $arch aliases
2167 case "$arch" in
2168     arm*)
2169         arch="arm"
2170     ;;
2171     mips|mipsel|IP*)
2172         arch="mips"
2173     ;;
2174     mips64*)
2175         arch="mips"
2176         subarch="mips64"
2177     ;;
2178     parisc|hppa)
2179         arch="parisc"
2180     ;;
2181     parisc64|hppa64)
2182         arch="parisc"
2183         subarch="parisc64"
2184     ;;
2185     "Power Macintosh"|ppc|powerpc)
2186         arch="ppc"
2187     ;;
2188     ppc64|powerpc64)
2189         arch="ppc"
2190         subarch="ppc64"
2191     ;;
2192     s390|s390x)
2193         arch="s390"
2194     ;;
2195     sh4|sh)
2196         arch="sh4"
2197     ;;
2198     sun4u|sparc64)
2199         arch="sparc"
2200         subarch="sparc64"
2201     ;;
2202     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2203         arch="x86"
2204     ;;
2205 esac
2206
2207 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2208 enable $arch
2209
2210 # Add processor-specific flags
2211 if test "$cpu" = generic; then
2212     : do nothing
2213 elif enabled ppc; then
2214
2215     case $(tolower $cpu) in
2216         601|ppc601|powerpc601)
2217             cpuflags="-mcpu=601"
2218             disable altivec
2219         ;;
2220         603*|ppc603*|powerpc603*)
2221             cpuflags="-mcpu=603"
2222             disable altivec
2223         ;;
2224         604*|ppc604*|powerpc604*)
2225             cpuflags="-mcpu=604"
2226             disable altivec
2227         ;;
2228         g3|75*|ppc75*|powerpc75*)
2229             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2230             disable altivec
2231         ;;
2232         g4|745*|ppc745*|powerpc745*)
2233             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2234         ;;
2235         74*|ppc74*|powerpc74*)
2236             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2237         ;;
2238         g5|970|ppc970|powerpc970|power4*)
2239             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2240         ;;
2241         cell)
2242             cpuflags="-mcpu=cell"
2243             enable ldbrx
2244         ;;
2245         e500v2)
2246             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2247             disable altivec
2248         ;;
2249         e500)
2250             cpuflags="-mcpu=8540 -mhard-float"
2251             disable altivec
2252         ;;
2253     esac
2254
2255 elif enabled x86; then
2256
2257     case $cpu in
2258         i[345]86|pentium)
2259             cpuflags="-march=$cpu"
2260             disable mmx
2261         ;;
2262         # targets that do NOT support conditional mov (cmov)
2263         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2264             cpuflags="-march=$cpu"
2265             disable cmov
2266         ;;
2267         # targets that do support conditional mov (cmov)
2268         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2269             cpuflags="-march=$cpu"
2270             enable cmov
2271             enable fast_cmov
2272         ;;
2273         # targets that do support conditional mov but on which it's slow
2274         pentium4|pentium4m|prescott|nocona)
2275             cpuflags="-march=$cpu"
2276             enable cmov
2277             disable fast_cmov
2278         ;;
2279     esac
2280
2281 elif enabled sparc; then
2282
2283     case $cpu in
2284         niagara)
2285             cpuflags="-mcpu=$cpu"
2286             disable vis
2287         ;;
2288         sparc64)
2289             cpuflags="-mcpu=v9"
2290         ;;
2291     esac
2292
2293 elif enabled arm; then
2294
2295     case $cpu in
2296         armv*)
2297             cpuflags="-march=$cpu"
2298             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2299         ;;
2300         *)
2301             cpuflags="-mcpu=$cpu"
2302             case $cpu in
2303                 cortex-a*)                               subarch=armv7a  ;;
2304                 cortex-r*)                               subarch=armv7r  ;;
2305                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2306                 arm11*)                                  subarch=armv6   ;;
2307                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2308                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2309             esac
2310         ;;
2311     esac
2312
2313 elif enabled alpha; then
2314
2315     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2316
2317 elif enabled bfin; then
2318
2319     cpuflags="-mcpu=$cpu"
2320
2321 elif enabled mips; then
2322
2323     cpuflags="-march=$cpu"
2324
2325 elif enabled avr32; then
2326
2327     case $cpu in
2328         ap7[02]0[0-2])
2329             subarch="avr32_ap"
2330             cpuflags="-mpart=$cpu"
2331         ;;
2332         ap)
2333             subarch="avr32_ap"
2334             cpuflags="-march=$cpu"
2335         ;;
2336         uc3[ab]*)
2337             subarch="avr32_uc"
2338             cpuflags="-mcpu=$cpu"
2339         ;;
2340         uc)
2341             subarch="avr32_uc"
2342             cpuflags="-march=$cpu"
2343         ;;
2344     esac
2345
2346 fi
2347
2348 add_cflags $cpuflags
2349 add_asflags $cpuflags
2350
2351 # compiler sanity check
2352 check_exec <<EOF
2353 int main(void){ return 0; }
2354 EOF
2355 if test "$?" != 0; then
2356     echo "$cc is unable to create an executable file."
2357     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2358         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2359         echo "Only do this if you know what cross compiling means."
2360     fi
2361     die "C compiler test failed."
2362 fi
2363
2364 add_cppflags -D_ISOC99_SOURCE
2365 check_cflags -std=c99
2366 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2367 #include <stdlib.h>
2368 EOF
2369 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2370 #include <stdlib.h>
2371 EOF
2372
2373 check_host_cflags -std=c99
2374 check_host_cflags -Wall
2375
2376 case "$arch" in
2377     alpha|ia64|mips|parisc|sparc)
2378         spic=$shared
2379     ;;
2380     x86)
2381         subarch="x86_32"
2382         check_cc <<EOF && subarch="x86_64"
2383         int test[(int)sizeof(char*) - 7];
2384 EOF
2385         if test "$subarch" = "x86_64"; then
2386             spic=$shared
2387         fi
2388     ;;
2389 esac
2390
2391 enable $subarch
2392 enabled spic && enable pic
2393
2394 # OS specific
2395 case $target_os in
2396     haiku)
2397         prefix_default="/boot/common"
2398         network_extralibs="-lnetwork"
2399         host_libs=
2400         ;;
2401     sunos)
2402         FFSERVERLDFLAGS=""
2403         SHFLAGS='-shared -Wl,-h,$$(@F)'
2404         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2405         network_extralibs="-lsocket -lnsl"
2406         add_cppflags -D__EXTENSIONS__
2407         nm_opts='-P -g'
2408         ;;
2409     netbsd)
2410         disable symver
2411         oss_indev_extralibs="-lossaudio"
2412         oss_outdev_extralibs="-lossaudio"
2413         ;;
2414     openbsd)
2415         enable malloc_aligned
2416         # On OpenBSD 4.5. the compiler does not use PIC unless
2417         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2418         # however the generated executable will not do anything
2419         # (simply quits with exit-code 1, no crash, no output).
2420         # Thus explicitly enable PIC here.
2421         enable pic
2422         disable symver
2423         SHFLAGS='-shared'
2424         oss_indev_extralibs="-lossaudio"
2425         oss_outdev_extralibs="-lossaudio"
2426         ;;
2427     dragonfly)
2428         enable malloc_aligned
2429         disable symver
2430         ;;
2431     freebsd)
2432         enable malloc_aligned
2433         ;;
2434     bsd/os)
2435         add_extralibs -lpoll -lgnugetopt
2436         strip="strip -d"
2437         ;;
2438     darwin)
2439         enable malloc_aligned
2440         gas="gas-preprocessor.pl $cc"
2441         enabled ppc && add_asflags -force_cpusubtype_ALL
2442         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2443         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2444         strip="${strip} -x"
2445         add_ldflags -Wl,-dynamic,-search_paths_first
2446         SLIBSUF=".dylib"
2447         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2448         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2449         FFSERVERLDFLAGS=-Wl,-bind_at_load
2450         objformat="macho"
2451         enabled x86_64 && objformat="macho64"
2452         enabled_any pic shared ||
2453             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2454         ;;
2455     mingw32*)
2456         if test $target_os = "mingw32ce"; then
2457             disable network
2458         else
2459             target_os=mingw32
2460         fi
2461         LIBTARGET=i386
2462         if enabled x86_64; then
2463             enable malloc_aligned
2464             LIBTARGET=x64
2465         elif enabled arm; then
2466             LIBTARGET=arm-wince
2467         fi
2468         shlibdir_default="$bindir_default"
2469         SLIBPREF=""
2470         SLIBSUF=".dll"
2471         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2472         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2473         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2474         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2475             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2476             install -d "$(LIBDIR)"; \
2477             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2478         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2479         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'
2480         objformat="win32"
2481         enable dos_paths
2482         check_cflags -fno-common
2483         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2484                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2485                 die "ERROR: MinGW runtime version must be >= 3.15."
2486         add_cppflags -U__STRICT_ANSI__
2487         ;;
2488     cygwin*)
2489         target_os=cygwin
2490         shlibdir_default="$bindir_default"
2491         SLIBPREF="cyg"
2492         SLIBSUF=".dll"
2493         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2494         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2495         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2496         objformat="win32"
2497         enable dos_paths
2498         check_cflags -fno-common
2499         add_cppflags -U__STRICT_ANSI__
2500         ;;
2501     *-dos|freedos|opendos)
2502         network_extralibs="-lsocket"
2503         objformat="coff"
2504         enable dos_paths
2505         add_cppflags -U__STRICT_ANSI__
2506         ;;
2507     linux)
2508         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2509         enable dv1394
2510         ;;
2511     irix*)
2512         target_os=irix
2513         ranlib="echo ignoring ranlib"
2514         ;;
2515     os/2*)
2516         strip="lxlite -CS"
2517         ln_s="cp -f"
2518         objformat="aout"
2519         add_cppflags -D_GNU_SOURCE
2520         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2521         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2522         FFSERVERLDFLAGS=""
2523         LIBSUF="_s.a"
2524         SLIBPREF=""
2525         SLIBSUF=".dll"
2526         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2527         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2528         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2529           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2530           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2531           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2532           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2533           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2534         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2535           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2536         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2537         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2538         enable dos_paths
2539         ;;
2540     gnu/kfreebsd)
2541         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2542         ;;
2543     gnu)
2544         ;;
2545     qnx)
2546         add_cppflags -D_QNX_SOURCE
2547         network_extralibs="-lsocket"
2548         ;;
2549     symbian)
2550         SLIBSUF=".dll"
2551         enable dos_paths
2552         add_cflags --include=$sysinclude/gcce/gcce.h
2553         ;;
2554     none)
2555         ;;
2556     *)
2557         die "Unknown OS '$target_os'."
2558         ;;
2559 esac
2560
2561 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2562
2563 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2564
2565 set_default $PATHS_LIST
2566
2567 # we need to build at least one lib type
2568 if ! enabled_any static shared; then
2569     cat <<EOF
2570 At least one library type must be built.
2571 Specify --enable-static to build the static libraries or --enable-shared to
2572 build the shared libraries as well. To only build the shared libraries specify
2573 --disable-static in addition to --enable-shared.
2574 EOF
2575     exit 1;
2576 fi
2577
2578 disabled static && LIBNAME=""
2579
2580 die_license_disabled() {
2581     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2582 }
2583
2584 die_license_disabled gpl libx264
2585 die_license_disabled gpl libxavs
2586 die_license_disabled gpl libxvid
2587 die_license_disabled gpl x11grab
2588
2589 die_license_disabled nonfree libfaac
2590
2591 die_license_disabled version3 libopencore_amrnb
2592 die_license_disabled version3 libopencore_amrwb
2593 die_license_disabled version3 libvo_aacenc
2594 die_license_disabled version3 libvo_amrwbenc
2595
2596 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2597
2598 disabled optimizations || check_cflags -fomit-frame-pointer
2599
2600 enable_pic() {
2601     enable pic
2602     add_cppflags -DPIC
2603     add_cflags   -fPIC
2604     add_asflags  -fPIC
2605 }
2606
2607 enabled pic && enable_pic
2608
2609 check_cc <<EOF || die "Symbol mangling check failed."
2610 int ff_extern;
2611 EOF
2612 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2613 extern_prefix=${sym%%ff_extern*}
2614
2615 check_cc <<EOF && enable inline_asm
2616 void foo(void) { __asm__ volatile ("" ::); }
2617 EOF
2618
2619 _restrict=
2620 for restrict_keyword in restrict __restrict__ __restrict; do
2621     check_cc <<EOF && _restrict=$restrict_keyword && break
2622 void foo(char * $restrict_keyword p);
2623 EOF
2624 done
2625
2626 check_cc <<EOF && enable attribute_packed
2627 struct { int x; } __attribute__((packed)) x;
2628 EOF
2629
2630 check_cc <<EOF && enable attribute_may_alias
2631 union { int x; } __attribute__((may_alias)) x;
2632 EOF
2633
2634 check_cc <<EOF || die "endian test failed"
2635 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2636 EOF
2637 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2638
2639 if enabled alpha; then
2640
2641     check_cflags -mieee
2642
2643 elif enabled arm; then
2644
2645     enabled thumb && check_cflags -mthumb || check_cflags -marm
2646     nogas=die
2647
2648     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2649         enable vfp_args
2650     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2651         case "${cross_prefix:-$cc}" in
2652             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2653             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2654 __asm__ (".eabi_attribute 28, 1");
2655 int main(void) { return 0; }
2656 EOF
2657         esac
2658         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2659     fi
2660
2661     # We have to check if pld is a nop and disable it.
2662     check_asm pld '"pld [r0]"'
2663
2664     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2665     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2666     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2667     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2668     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2669     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2670     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2671
2672     enabled_all armv6t2 shared !pic && enable_pic
2673
2674 elif enabled mips; then
2675
2676     check_asm loongson '"dmult.g $1, $2, $3"'
2677     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2678
2679 elif enabled ppc; then
2680
2681     enable local_aligned_8 local_aligned_16
2682
2683     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2684     check_asm ibm_asm   '"add 0, 0, 0"'
2685     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2686     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2687
2688     # AltiVec flags: The FSF version of GCC differs from the Apple version
2689     if enabled altivec; then
2690         nogas=warn
2691         check_cflags -maltivec -mabi=altivec &&
2692         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2693         check_cflags -faltivec
2694
2695         # check if our compiler supports Motorola AltiVec C API
2696         check_cc <<EOF || disable altivec
2697 $inc_altivec_h
2698 int main(void) {
2699     vector signed int v1, v2, v3;
2700     v1 = vec_add(v2,v3);
2701     return 0;
2702 }
2703 EOF
2704
2705         # check if our compiler supports braces for vector declarations
2706         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2707 $inc_altivec_h
2708 int main (void) { (vector int) {1}; return 0; }
2709 EOF
2710     fi
2711
2712 elif enabled sparc; then
2713
2714     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2715         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2716
2717 elif enabled x86; then
2718
2719     enable local_aligned_8 local_aligned_16
2720
2721     # check whether EBP is available on x86
2722     # As 'i' is stored on the stack, this program will crash
2723     # if the base pointer is used to access it because the
2724     # base pointer is cleared in the inline assembly code.
2725     check_exec_crash <<EOF && enable ebp_available
2726     volatile int i=0;
2727     __asm__ volatile (
2728         "xorl %%ebp, %%ebp"
2729     ::: "%ebp");
2730     return i;
2731 EOF
2732
2733     # check whether EBX is available on x86
2734     check_asm ebx_available '""::"b"(0)' &&
2735         check_asm ebx_available '"":::"%ebx"'
2736
2737     # check whether xmm clobbers are supported
2738     check_asm xmm_clobbers '"":::"%xmm0"'
2739
2740     # check whether more than 10 operands are supported
2741     check_cc <<EOF && enable ten_operands
2742 int main(void) {
2743     int x=0;
2744     __asm__ volatile(
2745         ""
2746         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2747     );
2748     return 0;
2749 }
2750 EOF
2751
2752     # check whether binutils is new enough to compile SSSE3/MMX2
2753     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2754     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2755
2756     check_asm bswap '"bswap %%eax" ::: "%eax"'
2757
2758     if ! disabled_any asm mmx yasm; then
2759         if check_cmd $yasmexe --version; then
2760             enabled x86_64 && yasm_extra="-m amd64"
2761             yasm_debug="-g dwarf2"
2762         elif check_cmd nasm -v; then
2763             yasmexe=nasm
2764             yasm_debug="-g -F dwarf"
2765             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2766         fi
2767
2768         YASMFLAGS="-f $objformat $yasm_extra"
2769         enabled pic               && append YASMFLAGS "-DPIC"
2770         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2771         case "$objformat" in
2772             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2773         esac
2774
2775         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2776             die "yasm not found, use --disable-yasm for a crippled build"
2777         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2778     fi
2779
2780     case "$cpu" in
2781         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2782             disable fast_clz
2783         ;;
2784     esac
2785
2786 fi
2787
2788 if enabled asm; then
2789     as=${gas:=$as}
2790     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2791         $nogas "GNU assembler not found, install gas-preprocessor"
2792 fi
2793
2794 check_ldflags -Wl,--as-needed
2795
2796 if check_func dlopen; then
2797     ldl=
2798 elif check_func dlopen -ldl; then
2799     ldl=-ldl
2800 fi
2801
2802 if enabled network; then
2803     check_type "sys/types.h sys/socket.h" socklen_t
2804     check_type netdb.h "struct addrinfo"
2805     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2806     check_type netinet/in.h "struct sockaddr_in6"
2807     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2808     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2809     # Prefer arpa/inet.h over winsock2
2810     if check_header arpa/inet.h ; then
2811         check_func closesocket
2812     elif check_header winsock2.h ; then
2813         check_func_headers winsock2.h closesocket -lws2 && \
2814             network_extralibs="-lws2" || \
2815         { check_func_headers winsock2.h closesocket -lws2_32 && \
2816             network_extralibs="-lws2_32"; }
2817         check_type ws2tcpip.h socklen_t
2818         check_type ws2tcpip.h "struct addrinfo"
2819         check_type ws2tcpip.h "struct ipv6_mreq"
2820         check_type ws2tcpip.h "struct sockaddr_in6"
2821         check_type ws2tcpip.h "struct sockaddr_storage"
2822         check_struct winsock2.h "struct sockaddr" sa_len
2823     else
2824         disable network
2825     fi
2826 fi
2827
2828 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2829 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2830
2831 check_func  fcntl
2832 check_func  fork
2833 check_func  getaddrinfo $network_extralibs
2834 check_func  gethrtime
2835 check_func  getrusage
2836 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2837 check_func  inet_aton $network_extralibs
2838 check_func  isatty
2839 check_func  localtime_r
2840 check_func  ${malloc_prefix}memalign            && enable memalign
2841 check_func  mkstemp
2842 check_func  mmap
2843 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2844 check_func  setrlimit
2845 check_func  strerror_r
2846 check_func  strtok_r
2847 check_func_headers conio.h kbhit
2848 check_func_headers io.h setmode
2849 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2850 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2851 check_func_headers windows.h GetProcessTimes
2852 check_func_headers windows.h MapViewOfFile
2853 check_func_headers windows.h VirtualAlloc
2854
2855 check_header dlfcn.h
2856 check_header dxva2api.h
2857 check_header libcrystalhd/libcrystalhd_if.h
2858 check_header malloc.h
2859 check_header poll.h
2860 check_header sys/mman.h
2861 check_header sys/resource.h
2862 check_header sys/select.h
2863 check_header termios.h
2864 check_header vdpau/vdpau.h
2865 check_header vdpau/vdpau_x11.h
2866 check_header X11/extensions/XvMClib.h
2867
2868 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2869
2870 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2871 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2872
2873 # check for some common methods of building with pthread support
2874 # do this before the optional library checks as some of them require pthreads
2875 if ! disabled pthreads && ! enabled w32threads; then
2876     enable pthreads
2877     if check_func pthread_create; then
2878         :
2879     elif check_func pthread_create -pthread; then
2880         add_cflags -pthread
2881         add_extralibs -pthread
2882     elif check_func pthread_create -pthreads; then
2883         add_cflags -pthreads
2884         add_extralibs -pthreads
2885     elif check_func pthread_create -lpthreadGC2; then
2886         add_extralibs -lpthreadGC2
2887     elif ! check_lib pthread.h pthread_create -lpthread; then
2888         disable pthreads
2889     fi
2890 fi
2891
2892 for thread in $THREADS_LIST; do
2893     if enabled $thread; then
2894         test -n "$thread_type" &&
2895             die "ERROR: Only one thread type must be selected." ||
2896             thread_type="$thread"
2897     fi
2898 done
2899
2900 check_lib math.h sin -lm && LIBM="-lm"
2901 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2902 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2903
2904 check_mathfunc exp2
2905 check_mathfunc exp2f
2906 check_mathfunc llrint
2907 check_mathfunc llrintf
2908 check_mathfunc log2
2909 check_mathfunc log2f
2910 check_mathfunc lrint
2911 check_mathfunc lrintf
2912 check_mathfunc round
2913 check_mathfunc roundf
2914 check_mathfunc trunc
2915 check_mathfunc truncf
2916
2917 # these are off by default, so fail if requested and not available
2918 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2919 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2920 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2921 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2922 enabled libdirac   && require_pkg_config dirac                          \
2923     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2924     "dirac_decoder_init dirac_encoder_init"
2925 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2926 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2927 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2928 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2929 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2930 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2931 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2932 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2933 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2934 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2935 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2936 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2937 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2938 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2939 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2940 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2941 enabled libvpx     && {
2942     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2943                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2944     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2945                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2946 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2947                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2948                         die "ERROR: libx264 version must be >= 0.115."; }
2949 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2950 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2951 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2952
2953 SDL_CONFIG="${cross_prefix}sdl-config"
2954 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2955     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2956     enable sdl &&
2957     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2958 else
2959   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2960     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2961     sdl_libs=$("${SDL_CONFIG}" --libs)
2962     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2963     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2964     enable sdl &&
2965     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2966   fi
2967 fi
2968 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2969
2970 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2971
2972 check_header linux/fb.h
2973 check_header linux/videodev.h
2974 check_header linux/videodev2.h
2975 check_header sys/videoio.h
2976
2977 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2978 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2979 # w32api 3.12 had it defined wrong
2980 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2981
2982 check_type "dshow.h" IBaseFilter
2983
2984 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2985 { check_header dev/bktr/ioctl_meteor.h &&
2986   check_header dev/bktr/ioctl_bt848.h; } ||
2987 { check_header machine/ioctl_meteor.h &&
2988   check_header machine/ioctl_bt848.h; } ||
2989 { check_header dev/video/meteor/ioctl_meteor.h &&
2990   check_header dev/video/bktr/ioctl_bt848.h; } ||
2991 check_header dev/ic/bt8xx.h
2992
2993 check_header sndio.h
2994 if check_struct sys/soundcard.h audio_buf_info bytes; then
2995     enable_safe sys/soundcard.h
2996 else
2997     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2998     #include <sys/soundcard.h>
2999     audio_buf_info abc;
3000 EOF
3001 fi
3002 check_header soundcard.h
3003
3004 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3005
3006 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3007
3008 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3009
3010 enabled x11grab                         &&
3011 check_header X11/Xlib.h                 &&
3012 check_header X11/extensions/XShm.h      &&
3013 check_header X11/extensions/Xfixes.h    &&
3014 check_func XOpenDisplay -lX11           &&
3015 check_func XShmCreateImage -lX11 -lXext &&
3016 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3017
3018 if ! disabled vaapi; then
3019     check_lib va/va.h vaInitialize -lva && {
3020         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3021         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3022     } || disable vaapi
3023 fi
3024
3025 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3026 check_cpp_condition \
3027     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3028     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3029       disable vdpau; }
3030 fi
3031
3032 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3033
3034 # add some useful compiler flags if supported
3035 check_cflags -Wdeclaration-after-statement
3036 check_cflags -Wall
3037 check_cflags -Wno-parentheses
3038 check_cflags -Wno-switch
3039 check_cflags -Wno-format-zero-length
3040 check_cflags -Wdisabled-optimization
3041 check_cflags -Wpointer-arith
3042 check_cflags -Wredundant-decls
3043 check_cflags -Wno-pointer-sign
3044 check_cflags -Wcast-qual
3045 check_cflags -Wwrite-strings
3046 check_cflags -Wtype-limits
3047 check_cflags -Wundef
3048 check_cflags -Wmissing-prototypes
3049 check_cflags -Wno-pointer-to-int-cast
3050 enabled extra_warnings && check_cflags -Winline
3051
3052 # add some linker flags
3053 check_ldflags -Wl,--warn-common
3054 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
3055 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3056
3057 echo "X{};" > $TMPV
3058 if test_ldflags -Wl,--version-script,$TMPV; then
3059     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3060     check_cc <<EOF && enable symver_asm_label
3061 void ff_foo(void) __asm__ ("av_foo@VERSION");
3062 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3063 EOF
3064     check_cc <<EOF && enable symver_gnu_asm
3065 __asm__(".symver ff_foo,av_foo@VERSION");
3066 void ff_foo(void) {}
3067 EOF
3068 fi
3069
3070 if [ -n "$optflags" ]; then
3071     add_cflags $optflags
3072 elif enabled small; then
3073     add_cflags $size_cflags
3074 elif enabled optimizations; then
3075     add_cflags $speed_cflags
3076 else
3077     add_cflags $noopt_cflags
3078 fi
3079 check_cflags -fno-math-errno
3080 check_cflags -fno-signed-zeros
3081
3082 if enabled icc; then
3083     # Just warnings, no remarks
3084     check_cflags -w1
3085     # -wd: Disable following warnings
3086     # 144, 167, 556: -Wno-pointer-sign
3087     # 1292: attribute "foo" ignored
3088     # 10006: ignoring unknown option -fno-signed-zeros
3089     # 10148: ignoring unknown option -Wno-parentheses
3090     # 10156: ignoring option '-W'; no argument required
3091     check_cflags -wd144,167,556,1292,10006,10148,10156
3092     # 11030: Warning unknown option --as-needed
3093     # 10156: ignoring option '-export'; no argument required
3094     check_ldflags -wd10156,11030
3095     # Allow to compile with optimizations
3096     check_ldflags -march=$cpu
3097     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3098     enable ebp_available
3099     if enabled x86_32; then
3100         test ${icc_version%%.*} -ge 11 && \
3101             check_cflags -falign-stack=maintain-16-byte || \
3102             disable aligned_stack
3103     fi
3104 elif enabled ccc; then
3105     # disable some annoying warnings
3106     add_cflags -msg_disable cvtu32to64
3107     add_cflags -msg_disable embedcomment
3108     add_cflags -msg_disable needconstext
3109     add_cflags -msg_disable nomainieee
3110     add_cflags -msg_disable ptrmismatch1
3111     add_cflags -msg_disable unreachcode
3112 elif enabled gcc; then
3113     check_cflags -fno-tree-vectorize
3114     check_cflags -Werror=implicit-function-declaration
3115     check_cflags -Werror=missing-prototypes
3116 elif enabled llvm_gcc; then
3117     check_cflags -mllvm -stack-alignment=16
3118 elif enabled clang; then
3119     check_cflags -mllvm -stack-alignment=16
3120     check_cflags -Qunused-arguments
3121 elif enabled armcc; then
3122     # 2523: use of inline assembler is deprecated
3123     add_cflags -W${armcc_opt},--diag_suppress=2523
3124     add_cflags -W${armcc_opt},--diag_suppress=1207
3125     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3126     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3127     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3128     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3129 elif enabled tms470; then
3130     add_cflags -pds=824 -pds=837
3131 elif enabled pathscale; then
3132     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3133 fi
3134
3135 enabled_any $THREADS_LIST      && enable threads
3136
3137 check_deps $CONFIG_LIST       \
3138            $CONFIG_EXTRA      \
3139            $HAVE_LIST         \
3140            $DECODER_LIST      \
3141            $ENCODER_LIST      \
3142            $HWACCEL_LIST      \
3143            $PARSER_LIST       \
3144            $BSF_LIST          \
3145            $DEMUXER_LIST      \
3146            $MUXER_LIST        \
3147            $FILTER_LIST       \
3148            $INDEV_LIST        \
3149            $OUTDEV_LIST       \
3150            $PROTOCOL_LIST     \
3151            $ACODEC_TESTS      \
3152            $VCODEC_TESTS      \
3153            $LAVF_TESTS        \
3154            $LAVFI_TESTS       \
3155            $SEEK_TESTS        \
3156
3157 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3158
3159 if test $target_os == "haiku"; then
3160     disable memalign
3161     disable posix_memalign
3162 fi
3163
3164 ! enabled_any memalign posix_memalign malloc_aligned &&
3165     enabled_any $need_memalign && enable memalign_hack
3166
3167 echo "install prefix            $prefix"
3168 echo "source path               $source_path"
3169 echo "C compiler                $cc"
3170 echo "ARCH                      $arch ($cpu)"
3171 if test "$build_suffix" != ""; then
3172     echo "build suffix              $build_suffix"
3173 fi
3174 if test "$extra_version" != ""; then
3175     echo "version string suffix     $extra_version"
3176 fi
3177 echo "big-endian                ${bigendian-no}"
3178 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3179 if enabled x86; then
3180     echo "${yasmexe}                      ${yasm-no}"
3181     echo "MMX enabled               ${mmx-no}"
3182     echo "MMX2 enabled              ${mmx2-no}"
3183     echo "3DNow! enabled            ${amd3dnow-no}"
3184     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3185     echo "SSE enabled               ${sse-no}"
3186     echo "SSSE3 enabled             ${ssse3-no}"
3187     echo "AVX enabled               ${avx-no}"
3188     echo "CMOV enabled              ${cmov-no}"
3189     echo "CMOV is fast              ${fast_cmov-no}"
3190     echo "EBX available             ${ebx_available-no}"
3191     echo "EBP available             ${ebp_available-no}"
3192     echo "10 operands supported     ${ten_operands-no}"
3193 fi
3194 if enabled arm; then
3195     echo "ARMv5TE enabled           ${armv5te-no}"
3196     echo "ARMv6 enabled             ${armv6-no}"
3197     echo "ARMv6T2 enabled           ${armv6t2-no}"
3198     echo "ARM VFP enabled           ${armvfp-no}"
3199     echo "IWMMXT enabled            ${iwmmxt-no}"
3200     echo "NEON enabled              ${neon-no}"
3201 fi
3202 if enabled mips; then
3203     echo "MMI enabled               ${mmi-no}"
3204 fi
3205 if enabled ppc; then
3206     echo "AltiVec enabled           ${altivec-no}"
3207     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3208     echo "dcbzl available           ${dcbzl-no}"
3209 fi
3210 if enabled sparc; then
3211     echo "VIS enabled               ${vis-no}"
3212 fi
3213 echo "debug symbols             ${debug-no}"
3214 echo "strip symbols             ${stripping-no}"
3215 echo "optimize for size         ${small-no}"
3216 echo "optimizations             ${optimizations-no}"
3217 echo "static                    ${static-no}"
3218 echo "shared                    ${shared-no}"
3219 echo "postprocessing support    ${postproc-no}"
3220 echo "new filter support        ${avfilter-no}"
3221 echo "network support           ${network-no}"
3222 echo "threading support         ${thread_type-no}"
3223 echo "SDL support               ${sdl-no}"
3224 echo "Sun medialib support      ${mlib-no}"
3225 echo "AVISynth enabled          ${avisynth-no}"
3226 echo "libcelt enabled           ${libcelt-no}"
3227 echo "frei0r enabled            ${frei0r-no}"
3228 echo "libdc1394 support         ${libdc1394-no}"
3229 echo "libdirac enabled          ${libdirac-no}"
3230 echo "libfaac enabled           ${libfaac-no}"
3231 echo "libgsm enabled            ${libgsm-no}"
3232 echo "libmp3lame enabled        ${libmp3lame-no}"
3233 echo "libnut enabled            ${libnut-no}"
3234 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3235 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3236 echo "libopencv support         ${libopencv-no}"
3237 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3238 echo "librtmp enabled           ${librtmp-no}"
3239 echo "libschroedinger enabled   ${libschroedinger-no}"
3240 echo "libspeex enabled          ${libspeex-no}"
3241 echo "libtheora enabled         ${libtheora-no}"
3242 echo "libva enabled             ${vaapi-no}"
3243 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3244 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3245 echo "libvorbis enabled         ${libvorbis-no}"
3246 echo "libvpx enabled            ${libvpx-no}"
3247 echo "libx264 enabled           ${libx264-no}"
3248 echo "libxavs enabled           ${libxavs-no}"
3249 echo "libxvid enabled           ${libxvid-no}"
3250 echo "zlib enabled              ${zlib-no}"
3251 echo "bzlib enabled             ${bzlib-no}"
3252 echo
3253
3254 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3255     echo "Enabled ${type}s:"
3256     eval list=\$$(toupper $type)_LIST
3257     print_enabled '_*' $list | sort | pr -r -3 -t
3258     echo
3259 done
3260
3261 license="LGPL version 2.1 or later"
3262 if enabled nonfree; then
3263     license="nonfree and unredistributable"
3264 elif enabled gplv3; then
3265     license="GPL version 3 or later"
3266 elif enabled lgplv3; then
3267     license="LGPL version 3 or later"
3268 elif enabled gpl; then
3269     license="GPL version 2 or later"
3270 fi
3271
3272 echo "License: $license"
3273
3274 echo "Creating config.mak and config.h..."
3275
3276 # build tree in object directory if source path is different from current one
3277 if enabled source_path_used; then
3278     DIRS="
3279         doc
3280         libavcodec
3281         libavcodec/$arch
3282         libavdevice
3283         libavfilter
3284         libavfilter/$arch
3285         libavfilter/libmpcodecs
3286         libavfilter/libmpcodecs/libvo
3287         libavformat
3288         libavutil
3289         libavutil/$arch
3290         libpostproc
3291         libswscale
3292         libswscale/$arch
3293         tests
3294         tools
3295     "
3296     FILES="
3297         Makefile
3298         common.mak
3299         subdir.mak
3300         doc/Makefile
3301         doc/texi2pod.pl
3302         libavcodec/Makefile
3303         libavcodec/${arch}/Makefile
3304         libavdevice/Makefile
3305         libavfilter/Makefile
3306         libavfilter/${arch}/Makefile
3307         libavformat/Makefile
3308         libavutil/Makefile
3309         libpostproc/Makefile
3310         libswscale/Makefile
3311         tests/Makefile
3312     "
3313     map 'mkdir -p $v' $DIRS;
3314     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3315 fi
3316
3317 enabled stripping || strip="echo skipping strip"
3318
3319 config_files="$TMPH config.mak"
3320
3321 cat > config.mak <<EOF
3322 # Automatically generated by configure - do not modify!
3323 ifndef FFMPEG_CONFIG_MAK
3324 FFMPEG_CONFIG_MAK=1
3325 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3326 prefix=$prefix
3327 LIBDIR=\$(DESTDIR)$libdir
3328 SHLIBDIR=\$(DESTDIR)$shlibdir
3329 INCDIR=\$(DESTDIR)$incdir
3330 BINDIR=\$(DESTDIR)$bindir
3331 DATADIR=\$(DESTDIR)$datadir
3332 MANDIR=\$(DESTDIR)$mandir
3333 SRC_PATH=$source_path
3334 CC_IDENT=$cc_ident
3335 ARCH=$arch
3336 CC=$cc
3337 AS=$as
3338 LD=$ld
3339 DEPCC=$dep_cc
3340 YASM=$yasmexe
3341 YASMDEP=$yasmexe
3342 AR=$ar
3343 RANLIB=$ranlib
3344 CP=cp -p
3345 LN_S=$ln_s
3346 STRIP=$strip
3347 CPPFLAGS=$CPPFLAGS
3348 CFLAGS=$CFLAGS
3349 ASFLAGS=$ASFLAGS
3350 AS_O=$CC_O
3351 CC_O=$CC_O
3352 LDFLAGS=$LDFLAGS
3353 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3354 SHFLAGS=$SHFLAGS
3355 YASMFLAGS=$YASMFLAGS
3356 BUILDSUF=$build_suffix
3357 FULLNAME=$FULLNAME
3358 LIBPREF=$LIBPREF
3359 LIBSUF=$LIBSUF
3360 LIBNAME=$LIBNAME
3361 SLIBPREF=$SLIBPREF
3362 SLIBSUF=$SLIBSUF
3363 EXESUF=$EXESUF
3364 EXTRA_VERSION=$extra_version
3365 DEPFLAGS=$DEPFLAGS
3366 CCDEP=$CCDEP
3367 ASDEP=$ASDEP
3368 CC_DEPFLAGS=$CC_DEPFLAGS
3369 AS_DEPFLAGS=$AS_DEPFLAGS
3370 HOSTCC=$host_cc
3371 HOSTCFLAGS=$host_cflags
3372 HOSTEXESUF=$HOSTEXESUF
3373 HOSTLDFLAGS=$host_ldflags
3374 HOSTLIBS=$host_libs
3375 TARGET_EXEC=$target_exec
3376 TARGET_PATH=$target_path
3377 SDL_LIBS=$sdl_libs
3378 SDL_CFLAGS=$sdl_cflags
3379 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3380 EXTRALIBS=$extralibs
3381 INSTALL=$install
3382 LIBTARGET=${LIBTARGET}
3383 SLIBNAME=${SLIBNAME}
3384 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3385 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3386 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3387 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3388 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3389 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3390 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3391 EOF
3392
3393 get_version(){
3394     name=$1
3395     file=$source_path/$2
3396     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3397     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3398     lcname=$(tolower $name)
3399     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3400     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3401 }
3402
3403 get_version LIBSWSCALE  libswscale/swscale.h
3404 get_version LIBPOSTPROC libpostproc/postprocess.h
3405 get_version LIBAVCODEC  libavcodec/version.h
3406 get_version LIBAVDEVICE libavdevice/avdevice.h
3407 get_version LIBAVFORMAT libavformat/version.h
3408 get_version LIBAVUTIL   libavutil/avutil.h
3409 get_version LIBAVFILTER libavfilter/avfilter.h
3410
3411 cat > $TMPH <<EOF
3412 /* Automatically generated by configure - do not modify! */
3413 #ifndef FFMPEG_CONFIG_H
3414 #define FFMPEG_CONFIG_H
3415 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3416 #define FFMPEG_LICENSE "$(c_escape $license)"
3417 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3418 #define CC_TYPE "$cc_type"
3419 #define CC_VERSION $cc_version
3420 #define restrict $_restrict
3421 #define EXTERN_PREFIX "${extern_prefix}"
3422 #define EXTERN_ASM ${extern_prefix}
3423 #define SLIBSUF "$SLIBSUF"
3424 EOF
3425
3426 test -n "$malloc_prefix" &&
3427     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3428
3429 if enabled small || disabled optimizations; then
3430     echo "#undef  av_always_inline"  >> $TMPH
3431     if enabled small; then
3432         echo "#define av_always_inline inline"  >> $TMPH
3433     else
3434         echo "#define av_always_inline av_unused"  >> $TMPH
3435     fi
3436 fi
3437
3438 if enabled yasm; then
3439     append config_files $TMPASM
3440     printf '' >$TMPASM
3441 fi
3442
3443 print_config ARCH_   "$config_files" $ARCH_LIST
3444 print_config HAVE_   "$config_files" $HAVE_LIST
3445 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3446                                      $CONFIG_EXTRA      \
3447                                      $DECODER_LIST      \
3448                                      $ENCODER_LIST      \
3449                                      $HWACCEL_LIST      \
3450                                      $PARSER_LIST       \
3451                                      $BSF_LIST          \
3452                                      $DEMUXER_LIST      \
3453                                      $MUXER_LIST        \
3454                                      $FILTER_LIST       \
3455                                      $PROTOCOL_LIST     \
3456                                      $INDEV_LIST        \
3457                                      $OUTDEV_LIST       \
3458
3459 cat >>config.mak <<EOF
3460 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3461 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3462 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3463 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3464 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3465 EOF
3466
3467 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3468 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3469
3470 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3471 cp_if_changed $TMPH config.h
3472 touch .config
3473
3474 enabled yasm && cp_if_changed $TMPASM config.asm
3475
3476 cat > $TMPH <<EOF
3477 /* Generated by ffconf */
3478 #ifndef AVUTIL_AVCONFIG_H
3479 #define AVUTIL_AVCONFIG_H
3480 EOF
3481
3482 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3483
3484 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3485
3486 cp_if_changed $TMPH libavutil/avconfig.h
3487
3488 test -n "$WARNINGS" && printf "\n$WARNINGS"
3489
3490 # build pkg-config files
3491
3492 pkgconfig_generate(){
3493 name=$1
3494 shortname=${name#lib}${build_suffix}
3495 comment=$2
3496 version=$3
3497 libs=$4
3498 requires=$5
3499 enabled ${name#lib} || return 0
3500 cat <<EOF > $name/$name.pc
3501 prefix=$prefix
3502 exec_prefix=\${prefix}
3503 libdir=$libdir
3504 includedir=$incdir
3505
3506 Name: $name
3507 Description: $comment
3508 Version: $version
3509 Requires: $(enabled shared || echo $requires)
3510 Requires.private: $(enabled shared && echo $requires)
3511 Conflicts:
3512 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3513 Libs.private: $(enabled shared && echo $libs)
3514 Cflags: -I\${includedir}
3515 EOF
3516 cat <<EOF > $name/$name-uninstalled.pc
3517 prefix=
3518 exec_prefix=
3519 libdir=\${pcfiledir}
3520 includedir=${source_path}
3521
3522 Name: $name
3523 Description: $comment
3524 Version: $version
3525 Requires: $requires
3526 Conflicts:
3527 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3528 Cflags: -I\${includedir}
3529 EOF
3530 }
3531
3532 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3533 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3534 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3535 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3536 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3537 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3538 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"