configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-avconv         disable avconv build
  85   --disable-ffplay         disable ffplay build
  86   --disable-ffprobe        disable ffprobe build
  87   --disable-ffserver       disable ffserver build
  88   --disable-avdevice       disable libavdevice build
  89   --disable-avcodec        disable libavcodec build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --disable-postproc       disable libpostproc build
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --enable-vaapi           enable VAAPI code [autodetect]
 111   --enable-vdpau           enable VDPAU code [autodetect]
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 176   --enable-libnut          enable NUT (de)muxing via libnut,
 177                            native (de)muxer exists [no]
 178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 181   --enable-libspeex        enable Speex encoding and decoding via libspeex [no]
 182   --enable-libtheora       enable Theora encoding via libtheora [no]
 183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 186                            native implementation exists [no]
 187   --enable-libvpx          enable VP8 support via libvpx [no]
 188   --enable-libx264         enable H.264 encoding via x264 [no]
 189   --enable-libxavs         enable AVS encoding via xavs [no]
 190   --enable-libxvid         enable Xvid encoding via xvidcore,
 191                            native MPEG-4/Xvid encoder exists [no]
 192   --enable-openal          enable OpenAL 1.1 capture support [no]
 193   --enable-mlib            enable Sun medialib [no]
 194   --enable-zlib            enable zlib [autodetect]
 195
 196 Advanced options (experts only):
 197   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 198   --enable-cross-compile   assume a cross-compiler is used
 199   --sysroot=PATH           root of cross-build tree
 200   --sysinclude=PATH        location of cross-build system headers
 201   --target-os=OS           compiler targets OS [$target_os]
 202   --target-exec=CMD        command to run executables on target
 203   --target-path=DIR        path to view of build directory on target
 204   --nm=NM                  use nm tool
 205   --ar=AR                  use archive tool AR [$ar_default]
 206   --as=AS                  use assembler AS [$as_default]
 207   --cc=CC                  use C compiler CC [$cc_default]
 208   --ld=LD                  use linker LD
 209   --host-cc=HOSTCC         use host C compiler HOSTCC
 210   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 211   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 212   --host-libs=HLIBS        use libs HLIBS when linking for host
 213   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 214   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 215   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 216   --extra-version=STRING   version string suffix []
 217   --build-suffix=SUFFIX    library name suffix []
 218   --progs-suffix=SUFFIX    program name suffix []
 219   --arch=ARCH              select architecture [$arch]
 220   --cpu=CPU                select the minimum required CPU (affects
 221                            instruction selection, may crash on older CPUs)
 222   --disable-asm            disable all assembler optimizations
 223   --disable-altivec        disable AltiVec optimizations
 224   --disable-amd3dnow       disable 3DNow! optimizations
 225   --disable-amd3dnowext    disable 3DNow! extended optimizations
 226   --disable-mmx            disable MMX optimizations
 227   --disable-mmx2           disable MMX2 optimizations
 228   --disable-sse            disable SSE optimizations
 229   --disable-ssse3          disable SSSE3 optimizations
 230   --disable-avx            disable AVX optimizations
 231   --disable-armv5te        disable armv5te optimizations
 232   --disable-armv6          disable armv6 optimizations
 233   --disable-armv6t2        disable armv6t2 optimizations
 234   --disable-armvfp         disable ARM VFP optimizations
 235   --disable-iwmmxt         disable iwmmxt optimizations
 236   --disable-mmi            disable MMI optimizations
 237   --disable-neon           disable neon optimizations
 238   --disable-vis            disable VIS optimizations
 239   --disable-yasm           disable use of yasm assembler
 240   --enable-pic             build position-independent code
 241   --malloc-prefix=PFX      prefix malloc and related names with PFX
 242   --enable-sram            allow use of on-chip SRAM
 243   --disable-symver         disable symbol versioning
 244   --optflags               override optimization-related compiler flags
 245
 246 Developer options (useful when working on FFmpeg itself):
 247   --disable-debug          disable debugging symbols
 248   --enable-debug=LEVEL     set the debug level [$debuglevel]
 249   --disable-optimizations  disable compiler optimizations
 250   --enable-extra-warnings  enable more compiler warnings
 251   --disable-stripping      disable stripping of executables and shared libraries
 252   --samples=PATH           location of test samples for FATE, if not set use
 253                            \$FATE_SAMPLES at make invocation time.
 254
 255 NOTE: Object files are built at the place where configure is launched.
 256 EOF
 257   exit 0
 258 }
 259
 260 quotes='""'
 261
 262 log(){
 263     echo "$@" >> $logfile
 264 }
 265
 266 log_file(){
 267     log BEGIN $1
 268     pr -n -t $1 >> $logfile
 269     log END $1
 270 }
 271
 272 echolog(){
 273     log "$@"
 274     echo "$@"
 275 }
 276
 277 warn(){
 278     log "WARNING: $*"
 279     WARNINGS="${WARNINGS}WARNING: $*\n"
 280 }
 281
 282 die(){
 283     echolog "$@"
 284     cat <<EOF
 285
 286 If you think configure made a mistake, make sure you are using the latest
 287 version from Git.  If the latest version fails, report the problem to the
 288 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 289 EOF
 290     if disabled logging; then
 291         cat <<EOF
 292 Rerun configure with logging enabled (do not use --disable-logging), and
 293 include the log this produces with your report.
 294 EOF
 295     else
 296 cat <<EOF
 297 Include the log file "$logfile" produced by configure as this will help
 298 solving the problem.
 299 EOF
 300     fi
 301     exit 1
 302 }
 303
 304 # Avoid locale weirdness, besides we really just want to translate ASCII.
 305 toupper(){
 306     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 307 }
 308
 309 tolower(){
 310     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 311 }
 312
 313 c_escape(){
 314     echo "$*" | sed 's/["\\]/\\\0/g'
 315 }
 316
 317 sh_quote(){
 318     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 319     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 320     echo "$v"
 321 }
 322
 323 cleanws(){
 324     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 325 }
 326
 327 filter(){
 328     pat=$1
 329     shift
 330     for v; do
 331         eval "case $v in $pat) echo $v ;; esac"
 332     done
 333 }
 334
 335 filter_out(){
 336     pat=$1
 337     shift
 338     for v; do
 339         eval "case $v in $pat) ;; *) echo $v ;; esac"
 340     done
 341 }
 342
 343 map(){
 344     m=$1
 345     shift
 346     for v; do eval $m; done
 347 }
 348
 349 set_all(){
 350     value=$1
 351     shift
 352     for var in $*; do
 353         eval $var=$value
 354     done
 355 }
 356
 357 set_weak(){
 358     value=$1
 359     shift
 360     for var; do
 361         eval : \${$var:=$value}
 362     done
 363 }
 364
 365 set_safe(){
 366     var=$1
 367     shift
 368     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 369 }
 370
 371 get_safe(){
 372     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 373 }
 374
 375 pushvar(){
 376     for var in $*; do
 377         eval level=\${${var}_level:=0}
 378         eval ${var}_${level}="\$$var"
 379         eval ${var}_level=$(($level+1))
 380     done
 381 }
 382
 383 popvar(){
 384     for var in $*; do
 385         eval level=\${${var}_level:-0}
 386         test $level = 0 && continue
 387         eval level=$(($level-1))
 388         eval $var="\${${var}_${level}}"
 389         eval ${var}_level=$level
 390         eval unset ${var}_${level}
 391     done
 392 }
 393
 394 enable(){
 395     set_all yes $*
 396 }
 397
 398 disable(){
 399     set_all no $*
 400 }
 401
 402 enable_weak(){
 403     set_weak yes $*
 404 }
 405
 406 disable_weak(){
 407     set_weak no $*
 408 }
 409
 410 enable_safe(){
 411     for var; do
 412         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 413     done
 414 }
 415
 416 disable_safe(){
 417     for var; do
 418         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 419     done
 420 }
 421
 422 do_enable_deep(){
 423     for var; do
 424         enabled $var && continue
 425         eval sel="\$${var}_select"
 426         eval sgs="\$${var}_suggest"
 427         pushvar var sgs
 428         enable_deep $sel
 429         popvar sgs
 430         enable_deep_weak $sgs
 431         popvar var
 432     done
 433 }
 434
 435 enable_deep(){
 436     do_enable_deep $*
 437     enable $*
 438 }
 439
 440 enable_deep_weak(){
 441     do_enable_deep $*
 442     enable_weak $*
 443 }
 444
 445 enabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xyes"
 448 }
 449
 450 disabled(){
 451     test "${1#!}" = "$1" && op== || op=!=
 452     eval test "x\$${1#!}" $op "xno"
 453 }
 454
 455 enabled_all(){
 456     for opt; do
 457         enabled $opt || return 1
 458     done
 459 }
 460
 461 disabled_all(){
 462     for opt; do
 463         disabled $opt || return 1
 464     done
 465 }
 466
 467 enabled_any(){
 468     for opt; do
 469         enabled $opt && return 0
 470     done
 471 }
 472
 473 disabled_any(){
 474     for opt; do
 475         disabled $opt && return 0
 476     done
 477     return 1
 478 }
 479
 480 set_default(){
 481     for opt; do
 482         eval : \${$opt:=\$${opt}_default}
 483     done
 484 }
 485
 486 is_in(){
 487     value=$1
 488     shift
 489     for var in $*; do
 490         [ $var = $value ] && return 0
 491     done
 492     return 1
 493 }
 494
 495 check_deps(){
 496     for cfg; do
 497         cfg="${cfg#!}"
 498         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 499         disabled ${cfg}_checking && continue
 500         enable ${cfg}_checking
 501
 502         eval dep_all="\$${cfg}_deps"
 503         eval dep_any="\$${cfg}_deps_any"
 504         eval dep_sel="\$${cfg}_select"
 505         eval dep_sgs="\$${cfg}_suggest"
 506         eval dep_ifa="\$${cfg}_if"
 507         eval dep_ifn="\$${cfg}_if_any"
 508
 509         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 510         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 511         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 512
 513         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 514         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 515         enabled_all  $dep_all || disable $cfg
 516         enabled_any  $dep_any || disable $cfg
 517         disabled_any $dep_sel && disable $cfg
 518
 519         if enabled $cfg; then
 520             eval dep_extralibs="\$${cfg}_extralibs"
 521             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 522             enable_deep $dep_sel
 523             enable_deep_weak $dep_sgs
 524         fi
 525
 526         disable ${cfg}_checking
 527     done
 528 }
 529
 530 print_config_h(){
 531     enabled $1 && v=1 || v=0
 532     echo "#define $2 $v"
 533 }
 534
 535 print_config_mak(){
 536     enabled $1 && v= || v=!
 537     echo "$v$2=yes"
 538 }
 539
 540 print_config_asm(){
 541     enabled $1 && echo "%define $2"
 542 }
 543
 544 print_config(){
 545     pfx=$1
 546     files=$2
 547     shift 2
 548     for cfg; do
 549         ucname="$(toupper $cfg)"
 550         for f in $files; do
 551             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 552         done
 553     done
 554 }
 555
 556 print_enabled(){
 557     test "$1" = -n && end=" " && shift || end="\n"
 558     suf=$1
 559     shift
 560     for v; do
 561         enabled $v && printf "%s$end" ${v%$suf};
 562     done
 563 }
 564
 565 append(){
 566     var=$1
 567     shift
 568     eval "$var=\"\$$var $*\""
 569 }
 570
 571 prepend(){
 572     var=$1
 573     shift
 574     eval "$var=\"$* \$$var\""
 575 }
 576
 577 add_cppflags(){
 578     append CPPFLAGS $($filter_cppflags "$@")
 579 }
 580
 581 add_cflags(){
 582     append CFLAGS $($filter_cflags "$@")
 583 }
 584
 585 add_asflags(){
 586     append ASFLAGS $($filter_asflags "$@")
 587 }
 588
 589 add_ldflags(){
 590     append LDFLAGS "$@"
 591 }
 592
 593 add_extralibs(){
 594     prepend extralibs "$@"
 595 }
 596
 597 check_cmd(){
 598     log "$@"
 599     "$@" >> $logfile 2>&1
 600 }
 601
 602 check_cc(){
 603     log check_cc "$@"
 604     cat > $TMPC
 605     log_file $TMPC
 606     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 607 }
 608
 609 check_cpp(){
 610     log check_cpp "$@"
 611     cat > $TMPC
 612     log_file $TMPC
 613     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 614 }
 615
 616 check_as(){
 617     log check_as "$@"
 618     cat > $TMPC
 619     log_file $TMPC
 620     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 621 }
 622
 623 check_asm(){
 624     log check_asm "$@"
 625     name="$1"
 626     code="$2"
 627     shift 2
 628     disable $name
 629     check_as "$@" <<EOF && enable $name
 630 void foo(void){ __asm__ volatile($code); }
 631 EOF
 632 }
 633
 634 check_yasm(){
 635     log check_yasm "$@"
 636     echo "$1" > $TMPS
 637     log_file $TMPS
 638     shift 1
 639     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 640 }
 641
 642 check_ld(){
 643     log check_ld "$@"
 644     flags=''
 645     libs=''
 646     for f; do
 647         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 648     done
 649     check_cc $($filter_cflags $flags) || return
 650     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 651 }
 652
 653 check_cppflags(){
 654     log check_cppflags "$@"
 655     set -- $($filter_cppflags "$@")
 656     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 657 int x;
 658 EOF
 659 }
 660
 661 check_cflags(){
 662     log check_cflags "$@"
 663     set -- $($filter_cflags "$@")
 664     check_cc "$@" <<EOF && append CFLAGS "$@"
 665 int x;
 666 EOF
 667 }
 668
 669 test_ldflags(){
 670     log test_ldflags "$@"
 671     check_ld "$@" <<EOF
 672 int main(void){ return 0; }
 673 EOF
 674 }
 675
 676 check_ldflags(){
 677     log check_ldflags "$@"
 678     test_ldflags "$@" && add_ldflags "$@"
 679 }
 680
 681 check_header(){
 682     log check_header "$@"
 683     header=$1
 684     shift
 685     disable_safe $header
 686     check_cpp "$@" <<EOF && enable_safe $header
 687 #include <$header>
 688 int x;
 689 EOF
 690 }
 691
 692 check_func(){
 693     log check_func "$@"
 694     func=$1
 695     shift
 696     disable $func
 697     check_ld "$@" <<EOF && enable $func
 698 extern int $func();
 699 int main(void){ $func(); }
 700 EOF
 701 }
 702
 703 check_mathfunc(){
 704     log check_mathfunc "$@"
 705     func=$1
 706     shift
 707     disable $func
 708     check_ld "$@" <<EOF && enable $func
 709 #include <math.h>
 710 float foo(float f) { return $func(f); }
 711 int main(void){ return 0; }
 712 EOF
 713 }
 714
 715 check_func_headers(){
 716     log check_func_headers "$@"
 717     headers=$1
 718     funcs=$2
 719     shift 2
 720     {
 721         for hdr in $headers; do
 722             echo "#include <$hdr>"
 723         done
 724         for func in $funcs; do
 725             echo "long check_$func(void) { return (long) $func; }"
 726         done
 727         echo "int main(void) { return 0; }"
 728     } | check_ld "$@" && enable $funcs && enable_safe $headers
 729 }
 730
 731 check_cpp_condition(){
 732     log check_cpp_condition "$@"
 733     header=$1
 734     condition=$2
 735     shift 2
 736     check_cpp $($filter_cppflags "$@") <<EOF
 737 #include <$header>
 738 #if !($condition)
 739 #error "unsatisfied condition: $condition"
 740 #endif
 741 EOF
 742 }
 743
 744 check_lib(){
 745     log check_lib "$@"
 746     header="$1"
 747     func="$2"
 748     shift 2
 749     check_header $header && check_func $func "$@" && add_extralibs "$@"
 750 }
 751
 752 check_lib2(){
 753     log check_lib2 "$@"
 754     headers="$1"
 755     funcs="$2"
 756     shift 2
 757     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 758 }
 759
 760 check_pkg_config(){
 761     log check_pkg_config "$@"
 762     pkg="$1"
 763     headers="$2"
 764     funcs="$3"
 765     shift 3
 766     $pkg_config --exists $pkg 2>/dev/null || return
 767     pkg_cflags=$($pkg_config --cflags $pkg)
 768     pkg_libs=$($pkg_config --libs $pkg)
 769     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 770         set_safe ${pkg}_cflags $pkg_cflags   &&
 771         set_safe ${pkg}_libs   $pkg_libs
 772 }
 773
 774 check_exec(){
 775     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 776 }
 777
 778 check_exec_crash(){
 779     code=$(cat)
 780
 781     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 782     # are safe but may not be available everywhere.  Thus we use
 783     # raise(SIGTERM) instead.  The check is run in a subshell so we
 784     # can redirect the "Terminated" message from the shell.  SIGBUS
 785     # is not defined by standard C so it is used conditionally.
 786
 787     (check_exec "$@") >> $logfile 2>&1 <<EOF
 788 #include <signal.h>
 789 static void sighandler(int sig){
 790     raise(SIGTERM);
 791 }
 792 int main(void){
 793     signal(SIGILL, sighandler);
 794     signal(SIGFPE, sighandler);
 795     signal(SIGSEGV, sighandler);
 796 #ifdef SIGBUS
 797     signal(SIGBUS, sighandler);
 798 #endif
 799     { $code }
 800 }
 801 EOF
 802 }
 803
 804 check_type(){
 805     log check_type "$@"
 806     headers=$1
 807     type=$2
 808     shift 2
 809     disable_safe "$type"
 810     incs=""
 811     for hdr in $headers; do
 812         incs="$incs
 813 #include <$hdr>"
 814     done
 815     check_cc "$@" <<EOF && enable_safe "$type"
 816 $incs
 817 $type v;
 818 EOF
 819 }
 820
 821 check_struct(){
 822     log check_type "$@"
 823     headers=$1
 824     struct=$2
 825     member=$3
 826     shift 3
 827     disable_safe "${struct}_${member}"
 828     incs=""
 829     for hdr in $headers; do
 830         incs="$incs
 831 #include <$hdr>"
 832     done
 833     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 834 $incs
 835 const void *p = &(($struct *)0)->$member;
 836 EOF
 837 }
 838
 839 require(){
 840     name="$1"
 841     header="$2"
 842     func="$3"
 843     shift 3
 844     check_lib $header $func "$@" || die "ERROR: $name not found"
 845 }
 846
 847 require2(){
 848     name="$1"
 849     headers="$2"
 850     func="$3"
 851     shift 3
 852     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 853 }
 854
 855 require_pkg_config(){
 856     pkg="$1"
 857     check_pkg_config "$@" || die "ERROR: $pkg not found"
 858     add_cflags    $(get_safe ${pkg}_cflags)
 859     add_extralibs $(get_safe ${pkg}_libs)
 860 }
 861
 862 check_host_cc(){
 863     log check_host_cc "$@"
 864     cat > $TMPC
 865     log_file $TMPC
 866     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 867 }
 868
 869 check_host_cflags(){
 870     log check_host_cflags "$@"
 871     check_host_cc "$@" <<EOF && append host_cflags "$@"
 872 int x;
 873 EOF
 874 }
 875
 876 apply(){
 877     file=$1
 878     shift
 879     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 880 }
 881
 882 cp_if_changed(){
 883     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 884     mkdir -p "$(dirname $2)"
 885     cp -f "$1" "$2"
 886 }
 887
 888 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 889 # system-dependent things.
 890
 891 COMPONENT_LIST="
 892     bsfs
 893     decoders
 894     demuxers
 895     encoders
 896     filters
 897     hwaccels
 898     indevs
 899     muxers
 900     outdevs
 901     parsers
 902     protocols
 903 "
 904
 905 CONFIG_LIST="
 906     $COMPONENT_LIST
 907     aandct
 908     ac3dsp
 909     avcodec
 910     avdevice
 911     avfilter
 912     avformat
 913     avisynth
 914     bzlib
 915     crystalhd
 916     dct
 917     doc
 918     dwt
 919     dxva2
 920     fastdiv
 921     ffmpeg
 922     avconv
 923     ffplay
 924     ffprobe
 925     ffserver
 926     fft
 927     frei0r
 928     golomb
 929     gpl
 930     gray
 931     h264dsp
 932     h264pred
 933     hardcoded_tables
 934     huffman
 935     libcelt
 936     libdc1394
 937     libdirac
 938     libfaac
 939     libfreetype
 940     libgsm
 941     libmp3lame
 942     libnut
 943     libopencore_amrnb
 944     libopencore_amrwb
 945     libopencv
 946     libopenjpeg
 947     librtmp
 948     libschroedinger
 949     libspeex
 950     libtheora
 951     libvo_aacenc
 952     libvo_amrwbenc
 953     libvorbis
 954     libvpx
 955     libx264
 956     libxavs
 957     libxvid
 958     lpc
 959     lsp
 960     mdct
 961     memalign_hack
 962     mlib
 963     mpegaudiodsp
 964     network
 965     nonfree
 966     openal
 967     pic
 968     postproc
 969     rdft
 970     rtpdec
 971     runtime_cpudetect
 972     shared
 973     sinewin
 974     small
 975     sram
 976     static
 977     swscale
 978     swscale_alpha
 979     thumb
 980     vaapi
 981     vdpau
 982     version3
 983     x11grab
 984     zlib
 985 "
 986
 987 THREADS_LIST='
 988     pthreads
 989     w32threads
 990 '
 991
 992 ARCH_LIST='
 993     alpha
 994     arm
 995     avr32
 996     avr32_ap
 997     avr32_uc
 998     bfin
 999     ia64
1000     m68k
1001     mips
1002     mips64
1003     parisc
1004     ppc
1005     ppc64
1006     s390
1007     sh4
1008     sparc
1009     sparc64
1010     tomi
1011     x86
1012     x86_32
1013     x86_64
1014 '
1015
1016 ARCH_EXT_LIST='
1017     altivec
1018     amd3dnow
1019     amd3dnowext
1020     armv5te
1021     armv6
1022     armv6t2
1023     armvfp
1024     avx
1025     iwmmxt
1026     mmi
1027     mmx
1028     mmx2
1029     neon
1030     ppc4xx
1031     sse
1032     ssse3
1033     vfpv3
1034     vis
1035 '
1036
1037 HAVE_LIST_PUB='
1038     bigendian
1039     fast_unaligned
1040 '
1041
1042 HAVE_LIST="
1043     $ARCH_EXT_LIST
1044     $HAVE_LIST_PUB
1045     $THREADS_LIST
1046     aligned_stack
1047     alsa_asoundlib_h
1048     altivec_h
1049     arpa_inet_h
1050     attribute_may_alias
1051     attribute_packed
1052     bswap
1053     closesocket
1054     cmov
1055     dcbzl
1056     dev_bktr_ioctl_bt848_h
1057     dev_bktr_ioctl_meteor_h
1058     dev_ic_bt8xx_h
1059     dev_video_meteor_ioctl_meteor_h
1060     dev_video_bktr_ioctl_bt848_h
1061     dlfcn_h
1062     dlopen
1063     dos_paths
1064     ebp_available
1065     ebx_available
1066     exp2
1067     exp2f
1068     fast_64bit
1069     fast_clz
1070     fast_cmov
1071     fcntl
1072     fork
1073     getaddrinfo
1074     gethrtime
1075     GetProcessMemoryInfo
1076     GetProcessTimes
1077     getrusage
1078     gnu_as
1079     struct_rusage_ru_maxrss
1080     ibm_asm
1081     inet_aton
1082     inline_asm
1083     isatty
1084     kbhit
1085     ldbrx
1086     llrint
1087     llrintf
1088     local_aligned_16
1089     local_aligned_8
1090     localtime_r
1091     log2
1092     log2f
1093     loongson
1094     lrint
1095     lrintf
1096     lzo1x_999_compress
1097     machine_ioctl_bt848_h
1098     machine_ioctl_meteor_h
1099     malloc_h
1100     MapViewOfFile
1101     memalign
1102     mkstemp
1103     mmap
1104     PeekNamedPipe
1105     posix_memalign
1106     round
1107     roundf
1108     sdl
1109     sdl_video_size
1110     setmode
1111     sndio_h
1112     socklen_t
1113     soundcard_h
1114     poll_h
1115     setrlimit
1116     strerror_r
1117     strptime
1118     strtok_r
1119     struct_addrinfo
1120     struct_ipv6_mreq
1121     struct_sockaddr_in6
1122     struct_sockaddr_sa_len
1123     struct_sockaddr_storage
1124     symver
1125     symver_gnu_asm
1126     symver_asm_label
1127     sys_mman_h
1128     sys_resource_h
1129     sys_select_h
1130     sys_soundcard_h
1131     sys_videoio_h
1132     termios_h
1133     threads
1134     trunc
1135     truncf
1136     vfp_args
1137     VirtualAlloc
1138     winsock2_h
1139     xform_asm
1140     xmm_clobbers
1141     yasm
1142 "
1143
1144 # options emitted with CONFIG_ prefix but not available on command line
1145 CONFIG_EXTRA="
1146     avutil
1147     gplv3
1148     lgplv3
1149 "
1150
1151 CMDLINE_SELECT="
1152     $ARCH_EXT_LIST
1153     $CONFIG_LIST
1154     $THREADS_LIST
1155     asm
1156     cross_compile
1157     debug
1158     extra_warnings
1159     logging
1160     optimizations
1161     stripping
1162     symver
1163     yasm
1164 "
1165
1166 PATHS_LIST='
1167     bindir
1168     datadir
1169     incdir
1170     libdir
1171     mandir
1172     prefix
1173     shlibdir
1174 '
1175
1176 CMDLINE_SET="
1177     $PATHS_LIST
1178     ar
1179     arch
1180     as
1181     build_suffix
1182     progs_suffix
1183     cc
1184     cpu
1185     cross_prefix
1186     dep_cc
1187     extra_version
1188     host_cc
1189     host_cflags
1190     host_ldflags
1191     host_libs
1192     host_os
1193     install
1194     ld
1195     logfile
1196     malloc_prefix
1197     nm
1198     optflags
1199     pkg_config
1200     samples
1201     strip
1202     sysinclude
1203     sysroot
1204     target_exec
1205     target_os
1206     target_path
1207 "
1208
1209 CMDLINE_APPEND="
1210     extra_cflags
1211 "
1212
1213 # code dependency declarations
1214
1215 # architecture extensions
1216
1217 armv5te_deps="arm"
1218 armv6_deps="arm"
1219 armv6t2_deps="arm"
1220 armvfp_deps="arm"
1221 iwmmxt_deps="arm"
1222 neon_deps="arm"
1223 vfpv3_deps="armvfp"
1224
1225 mmi_deps="mips"
1226
1227 altivec_deps="ppc"
1228 ppc4xx_deps="ppc"
1229
1230 vis_deps="sparc"
1231
1232 x86_64_suggest="cmov fast_cmov"
1233 amd3dnow_deps="mmx"
1234 amd3dnowext_deps="amd3dnow"
1235 mmx_deps="x86"
1236 mmx2_deps="mmx"
1237 sse_deps="mmx"
1238 ssse3_deps="sse"
1239 avx_deps="ssse3"
1240
1241 aligned_stack_if_any="ppc x86"
1242 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1243 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1244 fast_unaligned_if_any="armv6 ppc x86"
1245
1246 need_memalign="altivec neon sse"
1247 inline_asm_deps="!tms470"
1248
1249 symver_if_any="symver_asm_label symver_gnu_asm"
1250
1251 # subsystems
1252 dct_select="rdft"
1253 mdct_select="fft"
1254 rdft_select="fft"
1255 mpegaudiodsp_select="dct"
1256
1257 # decoders / encoders / hardware accelerators
1258 aac_decoder_select="mdct sinewin"
1259 aac_encoder_select="mdct sinewin"
1260 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1261 ac3_decoder_select="mdct ac3dsp ac3_parser"
1262 ac3_encoder_select="mdct ac3dsp"
1263 ac3_fixed_encoder_select="mdct ac3dsp"
1264 alac_encoder_select="lpc"
1265 amrnb_decoder_select="lsp"
1266 amrwb_decoder_select="lsp"
1267 atrac1_decoder_select="mdct sinewin"
1268 atrac3_decoder_select="mdct"
1269 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1270 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1271 cavs_decoder_select="golomb"
1272 cook_decoder_select="mdct sinewin"
1273 cscd_decoder_suggest="zlib"
1274 dca_decoder_select="mdct"
1275 dnxhd_encoder_select="aandct"
1276 dxa_decoder_select="zlib"
1277 eac3_decoder_select="ac3_decoder"
1278 eac3_encoder_select="mdct ac3dsp"
1279 eamad_decoder_select="aandct"
1280 eatgq_decoder_select="aandct"
1281 eatqi_decoder_select="aandct"
1282 ffv1_decoder_select="golomb"
1283 flac_decoder_select="golomb"
1284 flac_encoder_select="golomb lpc"
1285 flashsv_decoder_select="zlib"
1286 flashsv_encoder_select="zlib"
1287 flashsv2_encoder_select="zlib"
1288 flashsv2_decoder_select="zlib"
1289 flv_decoder_select="h263_decoder"
1290 flv_encoder_select="h263_encoder"
1291 fraps_decoder_select="huffman"
1292 h261_encoder_select="aandct"
1293 h263_decoder_select="h263_parser"
1294 h263_encoder_select="aandct"
1295 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1296 h263i_decoder_select="h263_decoder"
1297 h263p_encoder_select="h263_encoder"
1298 h264_decoder_select="golomb h264dsp h264pred"
1299 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1300 h264_dxva2_hwaccel_deps="dxva2api_h"
1301 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1302 h264_vaapi_hwaccel_select="vaapi"
1303 h264_vdpau_decoder_select="vdpau h264_decoder"
1304 imc_decoder_select="fft mdct sinewin"
1305 jpegls_decoder_select="golomb"
1306 jpegls_encoder_select="golomb"
1307 ljpeg_encoder_select="aandct"
1308 loco_decoder_select="golomb"
1309 mjpeg_encoder_select="aandct"
1310 mlp_decoder_select="mlp_parser"
1311 mp1_decoder_select="mpegaudiodsp"
1312 mp2_decoder_select="mpegaudiodsp"
1313 mp3adu_decoder_select="mpegaudiodsp"
1314 mp3_decoder_select="mpegaudiodsp"
1315 mp3on4_decoder_select="mpegaudiodsp"
1316 mp1float_decoder_select="mpegaudiodsp"
1317 mp2float_decoder_select="mpegaudiodsp"
1318 mp3adufloat_decoder_select="mpegaudiodsp"
1319 mp3float_decoder_select="mpegaudiodsp"
1320 mp3on4float_decoder_select="mpegaudiodsp"
1321 mpeg1video_encoder_select="aandct"
1322 mpeg2video_encoder_select="aandct"
1323 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1324 mpeg4_encoder_select="h263_encoder"
1325 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1326 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1327 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1328 mpeg2_crystalhd_decoder_select="crystalhd"
1329 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1330 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1331 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1332 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1333 mpeg4_crystalhd_decoder_select="crystalhd"
1334 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1335 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1336 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1337 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1338 msmpeg4_crystalhd_decoder_select="crystalhd"
1339 msmpeg4v1_decoder_select="h263_decoder"
1340 msmpeg4v1_encoder_select="h263_encoder"
1341 msmpeg4v2_decoder_select="h263_decoder"
1342 msmpeg4v2_encoder_select="h263_encoder"
1343 msmpeg4v3_decoder_select="h263_decoder"
1344 msmpeg4v3_encoder_select="h263_encoder"
1345 nellymoser_decoder_select="mdct sinewin"
1346 nellymoser_encoder_select="mdct sinewin"
1347 png_decoder_select="zlib"
1348 png_encoder_select="zlib"
1349 qcelp_decoder_select="lsp"
1350 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1351 ra_144_encoder_select="lpc"
1352 rv10_decoder_select="h263_decoder"
1353 rv10_encoder_select="h263_encoder"
1354 rv20_decoder_select="h263_decoder"
1355 rv20_encoder_select="h263_encoder"
1356 rv30_decoder_select="golomb h264pred"
1357 rv40_decoder_select="golomb h264pred"
1358 shorten_decoder_select="golomb"
1359 sipr_decoder_select="lsp"
1360 snow_decoder_select="dwt"
1361 snow_encoder_select="aandct dwt"
1362 sonic_decoder_select="golomb"
1363 sonic_encoder_select="golomb"
1364 sonic_ls_encoder_select="golomb"
1365 svq1_encoder_select="aandct"
1366 svq3_decoder_select="golomb h264dsp h264pred"
1367 svq3_decoder_suggest="zlib"
1368 theora_decoder_select="vp3_decoder"
1369 tiff_decoder_suggest="zlib"
1370 tiff_encoder_suggest="zlib"
1371 truehd_decoder_select="mlp_decoder"
1372 tscc_decoder_select="zlib"
1373 twinvq_decoder_select="mdct lsp sinewin"
1374 vc1_decoder_select="h263_decoder"
1375 vc1_crystalhd_decoder_select="crystalhd"
1376 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1377 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1378 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1379 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1380 vc1image_decoder_select="vc1_decoder"
1381 vorbis_decoder_select="mdct"
1382 vorbis_encoder_select="mdct"
1383 vp6_decoder_select="huffman"
1384 vp6a_decoder_select="vp6_decoder"
1385 vp6f_decoder_select="vp6_decoder"
1386 vp8_decoder_select="h264pred"
1387 wmapro_decoder_select="mdct sinewin"
1388 wmav1_decoder_select="mdct sinewin"
1389 wmav1_encoder_select="mdct sinewin"
1390 wmav2_decoder_select="mdct sinewin"
1391 wmav2_encoder_select="mdct sinewin"
1392 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1393 wmv1_decoder_select="h263_decoder"
1394 wmv1_encoder_select="h263_encoder"
1395 wmv2_decoder_select="h263_decoder"
1396 wmv2_encoder_select="h263_encoder"
1397 wmv3_decoder_select="vc1_decoder"
1398 wmv3_crystalhd_decoder_select="crystalhd"
1399 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1400 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1401 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1402 wmv3image_decoder_select="wmv3_decoder"
1403 zlib_decoder_select="zlib"
1404 zlib_encoder_select="zlib"
1405 zmbv_decoder_select="zlib"
1406 zmbv_encoder_select="zlib"
1407
1408 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1409 vaapi_deps="va_va_h"
1410 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1411
1412 # parsers
1413 h264_parser_select="golomb h264dsp h264pred"
1414
1415 # external libraries
1416 libcelt_decoder_deps="libcelt"
1417 libdirac_decoder_deps="libdirac !libschroedinger"
1418 libdirac_encoder_deps="libdirac"
1419 libfaac_encoder_deps="libfaac"
1420 libgsm_decoder_deps="libgsm"
1421 libgsm_encoder_deps="libgsm"
1422 libgsm_ms_decoder_deps="libgsm"
1423 libgsm_ms_encoder_deps="libgsm"
1424 libmp3lame_encoder_deps="libmp3lame"
1425 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1426 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1427 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1428 libopenjpeg_decoder_deps="libopenjpeg"
1429 libschroedinger_decoder_deps="libschroedinger"
1430 libschroedinger_encoder_deps="libschroedinger"
1431 libspeex_decoder_deps="libspeex"
1432 libspeex_encoder_deps="libspeex"
1433 libtheora_encoder_deps="libtheora"
1434 libvo_aacenc_encoder_deps="libvo_aacenc"
1435 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1436 libvorbis_encoder_deps="libvorbis"
1437 libvpx_decoder_deps="libvpx"
1438 libvpx_encoder_deps="libvpx"
1439 libx264_encoder_deps="libx264"
1440 libxavs_encoder_deps="libxavs"
1441 libxvid_encoder_deps="libxvid"
1442
1443 # demuxers / muxers
1444 ac3_demuxer_select="ac3_parser"
1445 asf_stream_muxer_select="asf_muxer"
1446 avisynth_demuxer_deps="avisynth"
1447 dirac_demuxer_select="dirac_parser"
1448 eac3_demuxer_select="ac3_parser"
1449 flac_demuxer_select="flac_parser"
1450 ipod_muxer_select="mov_muxer"
1451 libnut_demuxer_deps="libnut"
1452 libnut_muxer_deps="libnut"
1453 matroska_audio_muxer_select="matroska_muxer"
1454 matroska_demuxer_suggest="zlib bzlib"
1455 mov_demuxer_suggest="zlib"
1456 mp3_demuxer_select="mpegaudio_parser"
1457 mp4_muxer_select="mov_muxer"
1458 mpegtsraw_demuxer_select="mpegts_demuxer"
1459 mxf_d10_muxer_select="mxf_muxer"
1460 ogg_demuxer_select="golomb"
1461 psp_muxer_select="mov_muxer"
1462 rtp_demuxer_select="sdp_demuxer"
1463 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1464 rtsp_demuxer_select="http_protocol rtpdec"
1465 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1466 sap_demuxer_select="sdp_demuxer"
1467 sap_muxer_select="rtp_muxer rtp_protocol"
1468 sdp_demuxer_select="rtpdec"
1469 spdif_muxer_select="aac_parser"
1470 tg2_muxer_select="mov_muxer"
1471 tgp_muxer_select="mov_muxer"
1472 w64_demuxer_deps="wav_demuxer"
1473
1474 # indevs / outdevs
1475 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1476 alsa_outdev_deps="alsa_asoundlib_h"
1477 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1478 dshow_indev_deps="IBaseFilter"
1479 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1480 dv1394_indev_deps="dv1394 dv_demuxer"
1481 fbdev_indev_deps="linux_fb_h"
1482 jack_indev_deps="jack_jack_h sem_timedwait"
1483 lavfi_indev_deps="avfilter"
1484 libdc1394_indev_deps="libdc1394"
1485 openal_indev_deps="openal"
1486 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1487 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1488 sdl_outdev_deps="sdl"
1489 sndio_indev_deps="sndio_h"
1490 sndio_outdev_deps="sndio_h"
1491 v4l_indev_deps="linux_videodev_h"
1492 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1493 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1494 vfwcap_indev_extralibs="-lavicap32"
1495 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1496 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1497
1498 # protocols
1499 gopher_protocol_deps="network"
1500 http_protocol_deps="network"
1501 http_protocol_select="tcp_protocol"
1502 mmsh_protocol_select="http_protocol"
1503 mmst_protocol_deps="network"
1504 rtmp_protocol_select="tcp_protocol"
1505 rtp_protocol_select="udp_protocol"
1506 tcp_protocol_deps="network"
1507 udp_protocol_deps="network"
1508
1509 # filters
1510 abuffer_filter_deps="strtok_r"
1511 aformat_filter_deps="strtok_r"
1512 amovie_filter_deps="avcodec avformat"
1513 blackframe_filter_deps="gpl"
1514 boxblur_filter_deps="gpl"
1515 cropdetect_filter_deps="gpl"
1516 delogo_filter_deps="gpl"
1517 drawtext_filter_deps="libfreetype"
1518 frei0r_filter_deps="frei0r dlopen strtok_r"
1519 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1520 hqdn3d_filter_deps="gpl"
1521 movie_filter_deps="avcodec avformat"
1522 mp_filter_deps="gpl avcodec"
1523 mptestsrc_filter_deps="gpl"
1524 negate_filter_deps="lut_filter"
1525 ocv_filter_deps="libopencv"
1526 scale_filter_deps="swscale"
1527 yadif_filter_deps="gpl"
1528
1529 # libraries
1530 avdevice_deps="avcodec avformat"
1531 avformat_deps="avcodec"
1532 postproc_deps="gpl"
1533
1534 # programs
1535 ffmpeg_deps="avcodec avformat swscale"
1536 ffmpeg_select="buffer_filter buffersink_filter"
1537 avconv_deps="avcodec avformat swscale"
1538 avconv_select="buffer_filter"
1539 ffplay_deps="avcodec avformat swscale sdl"
1540 ffplay_select="buffersink_filter rdft"
1541 ffprobe_deps="avcodec avformat"
1542 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1543 ffserver_extralibs='$ldl'
1544
1545 doc_deps="texi2html"
1546
1547 # tests
1548
1549 test_deps(){
1550     suf1=$1
1551     suf2=$2
1552     shift 2
1553     for v; do
1554         dep=${v%=*}
1555         tests=${v#*=}
1556         for name in ${tests}; do
1557             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1558         done
1559     done
1560 }
1561
1562 test_deps _encoder _decoder                                             \
1563     adpcm_g726=g726                                                     \
1564     adpcm_ima_qt                                                        \
1565     adpcm_ima_wav                                                       \
1566     adpcm_ms                                                            \
1567     adpcm_swf                                                           \
1568     adpcm_yamaha=adpcm_yam                                              \
1569     alac                                                                \
1570     asv1                                                                \
1571     asv2                                                                \
1572     bmp                                                                 \
1573     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1574     dvvideo="dv dv50"                                                   \
1575     ffv1                                                                \
1576     flac                                                                \
1577     flashsv                                                             \
1578     flv                                                                 \
1579     gif                                                                 \
1580     h261                                                                \
1581     h263="h263 h263p"                                                   \
1582     huffyuv                                                             \
1583     jpegls                                                              \
1584     mjpeg="jpg mjpeg ljpeg"                                             \
1585     mp2                                                                 \
1586     mpeg1video="mpeg mpeg1b"                                            \
1587     mpeg2video="mpeg2 mpeg2thread"                                      \
1588     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1589     msmpeg4v3=msmpeg4                                                   \
1590     msmpeg4v2                                                           \
1591     pbm=pbmpipe                                                         \
1592     pcx                                                                 \
1593     pgm="pgm pgmpipe"                                                   \
1594     png                                                                 \
1595     ppm="ppm ppmpipe"                                                   \
1596     rawvideo="rgb yuv"                                                  \
1597     roq                                                                 \
1598     rv10                                                                \
1599     rv20                                                                \
1600     sgi                                                                 \
1601     snow="snow snowll"                                                  \
1602     svq1                                                                \
1603     targa=tga                                                           \
1604     tiff                                                                \
1605     wmav1                                                               \
1606     wmav2                                                               \
1607     wmv1                                                                \
1608     wmv2                                                                \
1609
1610 test_deps _muxer _demuxer                                               \
1611     aiff                                                                \
1612     pcm_alaw=alaw                                                       \
1613     asf                                                                 \
1614     au                                                                  \
1615     avi                                                                 \
1616     dv=dv_fmt                                                           \
1617     ffm                                                                 \
1618     flv=flv_fmt                                                         \
1619     gxf                                                                 \
1620     matroska=mkv                                                        \
1621     mmf                                                                 \
1622     mov                                                                 \
1623     pcm_mulaw=mulaw                                                     \
1624     mxf="mxf mxf_d10"                                                   \
1625     nut                                                                 \
1626     ogg                                                                 \
1627     rawvideo=pixfmt                                                     \
1628     rm                                                                  \
1629     swf                                                                 \
1630     mpegts=ts                                                           \
1631     voc                                                                 \
1632     wav                                                                 \
1633     yuv4mpegpipe=yuv4mpeg                                               \
1634
1635 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1636 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1637
1638 # default parameters
1639
1640 logfile="config.log"
1641
1642 # installation paths
1643 prefix_default="/usr/local"
1644 bindir_default='${prefix}/bin'
1645 datadir_default='${prefix}/share/ffmpeg'
1646 incdir_default='${prefix}/include'
1647 libdir_default='${prefix}/lib'
1648 mandir_default='${prefix}/share/man'
1649 shlibdir_default="$libdir_default"
1650
1651 # toolchain
1652 ar_default="ar"
1653 cc_default="gcc"
1654 cc_version=\"unknown\"
1655 host_cc_default="gcc"
1656 install="install"
1657 ln_s="ln -sf"
1658 nm_default="nm"
1659 objformat="elf"
1660 pkg_config_default=pkg-config
1661 ranlib="ranlib"
1662 strip_default="strip"
1663 yasmexe="yasm"
1664 nogas=":"
1665
1666 nm_opts='-g'
1667
1668 # machine
1669 arch_default=$(uname -m)
1670 cpu="generic"
1671
1672 # OS
1673 target_os_default=$(tolower $(uname -s))
1674 host_os=$target_os_default
1675
1676 # configurable options
1677 enable avcodec
1678 enable avdevice
1679 enable avfilter
1680 enable avformat
1681 enable avutil
1682 enable asm
1683 enable debug
1684 enable doc
1685 enable fastdiv
1686 enable ffmpeg
1687 enable avconv
1688 enable ffplay
1689 enable ffprobe
1690 enable ffserver
1691 enable network
1692 enable optimizations
1693 enable postproc
1694 enable protocols
1695 enable static
1696 enable stripping
1697 enable swscale
1698 enable swscale_alpha
1699
1700 # build settings
1701 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1702 FFSERVERLDFLAGS=-Wl,-E
1703 LIBPREF="lib"
1704 LIBSUF=".a"
1705 FULLNAME='$(NAME)$(BUILDSUF)'
1706 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1707 SLIBPREF="lib"
1708 SLIBSUF=".so"
1709 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1710 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1711 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1712 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1713 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1714 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1715
1716 AS_O='-o $@'
1717 CC_O='-o $@'
1718
1719 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1720 host_libs='-lm'
1721
1722 target_path='$(CURDIR)'
1723
1724 # since the object filename is not given with the -MM flag, the compiler
1725 # is only able to print the basename, and we must add the path ourselves
1726 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1727 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1728
1729 # find source path
1730 if test -f configure; then
1731     source_path=.
1732 else
1733     source_path=$(cd $(dirname "$0"); pwd)
1734     echo "$source_path" | grep -q '[[:blank:]]' &&
1735         die "Out of tree builds are impossible with whitespace in source path."
1736     test -e "$source_path/config.h" &&
1737         die "Out of tree builds are impossible with config.h in source dir."
1738 fi
1739
1740 for v in "$@"; do
1741     r=${v#*=}
1742     l=${v%"$r"}
1743     r=$(sh_quote "$r")
1744     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1745 done
1746
1747 find_things(){
1748     thing=$1
1749     pattern=$2
1750     file=$source_path/$3
1751     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1752 }
1753
1754 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1755 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1756 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1757 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1758 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1759 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1760 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1761 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1762 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1763 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1764 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1765
1766 find_tests(){
1767     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1768 }
1769
1770 ACODEC_TESTS=$(find_tests acodec)
1771 VCODEC_TESTS=$(find_tests vsynth1)
1772 LAVF_TESTS=$(find_tests lavf)
1773 LAVFI_TESTS=$(find_tests lavfi)
1774 SEEK_TESTS=$(find_tests seek seek_)
1775
1776 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1777
1778 for n in $COMPONENT_LIST; do
1779     v=$(toupper ${n%s})_LIST
1780     eval enable \$$v
1781     eval ${n}_if_any="\$$v"
1782 done
1783
1784 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1785
1786 die_unknown(){
1787     echo "Unknown option \"$1\"."
1788     echo "See $0 --help for available options."
1789     exit 1
1790 }
1791
1792 show_list() {
1793     suffix=_$1
1794     shift
1795     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1796     exit 0
1797 }
1798
1799 for opt do
1800     optval="${opt#*=}"
1801     case "$opt" in
1802     --extra-ldflags=*) add_ldflags $optval
1803     ;;
1804     --extra-libs=*) add_extralibs $optval
1805     ;;
1806     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1807     ;;
1808     --enable-debug=*) debuglevel="$optval"
1809     ;;
1810     --disable-everything)
1811     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1812     ;;
1813     --enable-*=*|--disable-*=*)
1814     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1815     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1816     eval list=\$$(toupper $thing)_LIST
1817     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1818     $action $(filter "$name" $list)
1819     ;;
1820     --enable-?*|--disable-?*)
1821     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1822     if is_in $option $COMPONENT_LIST; then
1823         test $action = disable && action=unset
1824         eval $action \$$(toupper ${option%s})_LIST
1825     elif is_in $option $CMDLINE_SELECT; then
1826         $action $option
1827     else
1828         die_unknown $opt
1829     fi
1830     ;;
1831     --list-*)
1832         NAME="${opt#--list-}"
1833         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1834         NAME=${NAME%s}
1835         eval show_list $NAME \$$(toupper $NAME)_LIST
1836     ;;
1837     --help|-h) show_help
1838     ;;
1839     *)
1840     optname="${opt%%=*}"
1841     optname="${optname#--}"
1842     optname=$(echo "$optname" | sed 's/-/_/g')
1843     if is_in $optname $CMDLINE_SET; then
1844         eval $optname='$optval'
1845     elif is_in $optname $CMDLINE_APPEND; then
1846         append $optname "$optval"
1847     else
1848          die_unknown $opt
1849     fi
1850     ;;
1851     esac
1852 done
1853
1854 disabled logging && logfile=/dev/null
1855
1856 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1857 set >> $logfile
1858
1859 test -n "$cross_prefix" && enable cross_compile
1860
1861 if enabled cross_compile; then
1862     test -n "$arch" && test -n "$target_os" ||
1863         die "Must specify target arch and OS when cross-compiling"
1864 fi
1865
1866 set_default arch target_os
1867
1868 ar_default="${cross_prefix}${ar_default}"
1869 cc_default="${cross_prefix}${cc_default}"
1870 nm_default="${cross_prefix}${nm_default}"
1871 pkg_config_default="${cross_prefix}${pkg_config_default}"
1872 ranlib="${cross_prefix}${ranlib}"
1873 strip_default="${cross_prefix}${strip_default}"
1874
1875 sysinclude_default="${sysroot}/usr/include"
1876
1877 set_default cc nm pkg_config strip sysinclude
1878 enabled cross_compile || host_cc_default=$cc
1879 set_default host_cc
1880
1881 if ! $pkg_config --version >/dev/null 2>&1; then
1882     warn "$pkg_config not found, library detection may fail."
1883     pkg_config=false
1884 fi
1885
1886 exesuf() {
1887     case $1 in
1888         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1889     esac
1890 }
1891
1892 EXESUF=$(exesuf $target_os)
1893 HOSTEXESUF=$(exesuf $host_os)
1894
1895 # set temporary file name
1896 : ${TMPDIR:=$TEMPDIR}
1897 : ${TMPDIR:=$TMP}
1898 : ${TMPDIR:=/tmp}
1899
1900 if ! check_cmd mktemp -u XXXXXX; then
1901     # simple replacement for missing mktemp
1902     # NOT SAFE FOR GENERAL USE
1903     mktemp(){
1904         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1905     }
1906 fi
1907
1908 tmpfile(){
1909     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1910         (set -C; exec > $tmp) 2>/dev/null ||
1911         die "Unable to create temporary file in $TMPDIR."
1912     append TMPFILES $tmp
1913     eval $1=$tmp
1914 }
1915
1916 trap 'rm -f -- $TMPFILES' EXIT
1917
1918 tmpfile TMPC  .c
1919 tmpfile TMPE  $EXESUF
1920 tmpfile TMPH  .h
1921 tmpfile TMPO  .o
1922 tmpfile TMPS  .S
1923 tmpfile TMPV  .ver
1924 tmpfile TMPSH .sh
1925 tmpfile TMPASM .asm
1926
1927 unset -f mktemp
1928
1929 chmod +x $TMPE
1930
1931 # make sure we can execute files in $TMPDIR
1932 cat > $TMPSH 2>> $logfile <<EOF
1933 #! /bin/sh
1934 EOF
1935 chmod +x $TMPSH >> $logfile 2>&1
1936 if ! $TMPSH >> $logfile 2>&1; then
1937     cat <<EOF
1938 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1939 variable to another directory and make sure that it is not mounted noexec.
1940 EOF
1941     die "Sanity test failed."
1942 fi
1943
1944 filter_cflags=echo
1945 filter_cppflags=echo
1946 filter_asflags=echo
1947
1948 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1949     cc_type=llvm_gcc
1950     cc_version=__VERSION__
1951     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1952     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1953     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1954     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1955     speed_cflags='-O3'
1956     size_cflags='-Os'
1957 elif $cc -v 2>&1 | grep -qi ^gcc; then
1958     cc_type=gcc
1959     cc_version=__VERSION__
1960     gcc_version=$($cc --version | head -n1)
1961     gcc_basever=$($cc -dumpversion)
1962     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1963     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1964     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1965     if ! $cc -dumpversion | grep -q '^2\.'; then
1966         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1967         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1968     fi
1969     speed_cflags='-O3'
1970     size_cflags='-Os'
1971 elif $cc --version 2>/dev/null | grep -q Intel; then
1972     cc_type=icc
1973     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1974     cc_ident=$($cc --version | head -n1)
1975     icc_version=$($cc -dumpversion)
1976     CC_DEPFLAGS='-MMD'
1977     AS_DEPFLAGS='-MMD'
1978     speed_cflags='-O3'
1979     size_cflags='-Os'
1980     noopt_cflags='-O1'
1981 elif $cc -v 2>&1 | grep -q xlc; then
1982     cc_type=xlc
1983     cc_version="AV_STRINGIFY(__IBMC__)"
1984     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1985     speed_cflags='-O5'
1986     size_cflags='-O5 -qcompact'
1987 elif $cc -V 2>/dev/null | grep -q Compaq; then
1988     cc_type=ccc
1989     cc_version="AV_STRINGIFY(__DECC_VER)"
1990     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1991     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1992     debuglevel=3
1993     add_ldflags -Wl,-z,now # calls to libots crash without this
1994     speed_cflags='-fast'
1995     size_cflags='-O1'
1996 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1997     test -d "$sysroot" || die "No valid sysroot specified."
1998     cc_type=armcc
1999     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2000     cc_ident=$($cc --vsn | head -n1)
2001     armcc_conf="$PWD/armcc.conf"
2002     $cc --arm_linux_configure                 \
2003         --arm_linux_config_file="$armcc_conf" \
2004         --configure_sysroot="$sysroot"        \
2005         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2006         die "Error creating armcc configuration file."
2007     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2008     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2009     as_default="${cross_prefix}gcc"
2010     CC_DEPFLAGS='-MMD'
2011     AS_DEPFLAGS='-MMD'
2012     speed_cflags='-O3'
2013     size_cflags='-Os'
2014     filter_asflags="filter_out -W${armcc_opt}*"
2015 elif $cc -version 2>/dev/null | grep -q TMS470; then
2016     cc_type=tms470
2017     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2018     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2019     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2020     CC_O='-fr=$(@D)'
2021     as_default="${cross_prefix}gcc"
2022     ld_default="${cross_prefix}gcc"
2023     TMPO=$(basename $TMPC .c).o
2024     append TMPFILES $TMPO
2025     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2026     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2027     AS_DEPFLAGS='-MMD'
2028     speed_cflags='-O3 -mf=5'
2029     size_cflags='-O3 -mf=2'
2030     filter_cflags=tms470_flags
2031     tms470_flags(){
2032         for flag; do
2033             case $flag in
2034                 -march=*|-mcpu=*)
2035                     case "${flag#*=}" in
2036                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2037                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2038                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2039                         armv6*|arm11*)          echo -mv=6   ;;
2040                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2041                                                 echo -mv=5e  ;;
2042                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2043                     esac
2044                     ;;
2045                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2046                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2047                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2048                 -msoft-float)   echo --float_support=vfplib       ;;
2049                 -O[0-3]|-mf=*)  echo $flag                        ;;
2050                 -g)             echo -g -mn                       ;;
2051                 -pds=*)         echo $flag                        ;;
2052             esac
2053         done
2054     }
2055 elif $cc -v 2>&1 | grep -q clang; then
2056     cc_type=clang
2057     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2058         cc_version=__clang_version__ || cc_version=__VERSION__
2059     cc_ident=$($cc --version | head -n1)
2060     CC_DEPFLAGS='-MMD'
2061     AS_DEPFLAGS='-MMD'
2062     speed_cflags='-O3'
2063     size_cflags='-Os'
2064 elif $cc -V 2>&1 | grep -q Sun; then
2065     cc_type=suncc
2066     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2067     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2068     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2069     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2070     add_ldflags -xc99
2071     speed_cflags='-O5'
2072     size_cflags='-O5 -xspace'
2073     filter_cflags=suncc_flags
2074     suncc_flags(){
2075         for flag; do
2076             case $flag in
2077                 -march=*|-mcpu=*)
2078                     case "${flag#*=}" in
2079                         native)                   echo -xtarget=native       ;;
2080                         v9|niagara)               echo -xarch=sparc          ;;
2081                         ultrasparc)               echo -xarch=sparcvis       ;;
2082                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2083                         i586|pentium)             echo -xchip=pentium        ;;
2084                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2085                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2086                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2087                         pentium4*)          echo -xtarget=pentium4           ;;
2088                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2089                         *-sse3)             echo -xarch=sse3                 ;;
2090                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2091                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2092                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2093                         k8|opteron|athlon64|athlon-fx)
2094                                                   echo -xarch=sse2a          ;;
2095                         athlon*)                  echo -xarch=pentium_proa   ;;
2096                     esac
2097                     ;;
2098                 -std=c99)             echo -xc99              ;;
2099                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2100                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2101                 -W*,*)                echo $flag              ;;
2102                 -f*-*|-W*)                                    ;;
2103                 *)                    echo $flag              ;;
2104             esac
2105         done
2106     }
2107 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2108     cc_type=pathscale
2109     cc_version=__PATHSCALE__
2110     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2111     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2112     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2113     speed_cflags='-O2'
2114     size_cflags='-Os'
2115     filter_cflags='filter_out -Wdisabled-optimization'
2116 elif $cc -v 2>&1 | grep -q Open64; then
2117     cc_type=open64
2118     cc_version=__OPEN64__
2119     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2120     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2121     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2122     speed_cflags='-O2'
2123     size_cflags='-Os'
2124     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2125 fi
2126
2127 test -n "$cc_type" && enable $cc_type ||
2128     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2129
2130 : ${as_default:=$cc}
2131 : ${dep_cc_default:=$cc}
2132 : ${ld_default:=$cc}
2133 set_default ar as dep_cc ld
2134
2135 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2136 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2137
2138 add_cflags $extra_cflags
2139 add_asflags $extra_cflags
2140
2141 if test -n "$sysroot"; then
2142     case "$cc_type" in
2143         gcc|llvm_gcc|clang)
2144             add_cppflags --sysroot="$sysroot"
2145             add_ldflags --sysroot="$sysroot"
2146         ;;
2147         tms470)
2148             add_cppflags -I"$sysinclude"
2149             add_ldflags  --sysroot="$sysroot"
2150         ;;
2151     esac
2152 fi
2153
2154 if test "$cpu" = host; then
2155     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2156
2157     case "$cc_type" in
2158         gcc|llvm_gcc)
2159             check_native(){
2160                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2161                 sed -n "/cc1.*$1=/{
2162                             s/.*$1=\\([^ ]*\\).*/\\1/
2163                             p
2164                             q
2165                         }" $TMPE
2166             }
2167             cpu=$(check_native -march || check_native -mcpu)
2168         ;;
2169     esac
2170
2171     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2172 fi
2173
2174 # Deal with common $arch aliases
2175 case "$arch" in
2176     arm*)
2177         arch="arm"
2178     ;;
2179     mips|mipsel|IP*)
2180         arch="mips"
2181     ;;
2182     mips64*)
2183         arch="mips"
2184         subarch="mips64"
2185     ;;
2186     parisc|hppa)
2187         arch="parisc"
2188     ;;
2189     parisc64|hppa64)
2190         arch="parisc"
2191         subarch="parisc64"
2192     ;;
2193     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2194         arch="ppc"
2195     ;;
2196     s390|s390x)
2197         arch="s390"
2198     ;;
2199     sh4|sh)
2200         arch="sh4"
2201     ;;
2202     sun4u|sparc64)
2203         arch="sparc"
2204         subarch="sparc64"
2205     ;;
2206     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2207         arch="x86"
2208     ;;
2209 esac
2210
2211 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2212 enable $arch
2213
2214 # Add processor-specific flags
2215 if test "$cpu" = generic; then
2216     : do nothing
2217 elif enabled ppc; then
2218
2219     case $(tolower $cpu) in
2220         601|ppc601|powerpc601)
2221             cpuflags="-mcpu=601"
2222             disable altivec
2223         ;;
2224         603*|ppc603*|powerpc603*)
2225             cpuflags="-mcpu=603"
2226             disable altivec
2227         ;;
2228         604*|ppc604*|powerpc604*)
2229             cpuflags="-mcpu=604"
2230             disable altivec
2231         ;;
2232         g3|75*|ppc75*|powerpc75*)
2233             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2234             disable altivec
2235         ;;
2236         g4|745*|ppc745*|powerpc745*)
2237             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2238         ;;
2239         74*|ppc74*|powerpc74*)
2240             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2241         ;;
2242         g5|970|ppc970|powerpc970|power4*)
2243             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2244         ;;
2245         cell)
2246             cpuflags="-mcpu=cell"
2247             enable ldbrx
2248         ;;
2249         e500v2)
2250             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2251             disable altivec
2252         ;;
2253         e500)
2254             cpuflags="-mcpu=8540 -mhard-float"
2255             disable altivec
2256         ;;
2257     esac
2258
2259 elif enabled x86; then
2260
2261     case $cpu in
2262         i[345]86|pentium)
2263             cpuflags="-march=$cpu"
2264             disable mmx
2265         ;;
2266         # targets that do NOT support conditional mov (cmov)
2267         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2268             cpuflags="-march=$cpu"
2269             disable cmov
2270         ;;
2271         # targets that do support conditional mov (cmov)
2272         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2273             cpuflags="-march=$cpu"
2274             enable cmov
2275             enable fast_cmov
2276         ;;
2277         # targets that do support conditional mov but on which it's slow
2278         pentium4|pentium4m|prescott|nocona)
2279             cpuflags="-march=$cpu"
2280             enable cmov
2281             disable fast_cmov
2282         ;;
2283     esac
2284
2285 elif enabled sparc; then
2286
2287     case $cpu in
2288         niagara)
2289             cpuflags="-mcpu=$cpu"
2290             disable vis
2291         ;;
2292         sparc64)
2293             cpuflags="-mcpu=v9"
2294         ;;
2295     esac
2296
2297 elif enabled arm; then
2298
2299     case $cpu in
2300         armv*)
2301             cpuflags="-march=$cpu"
2302             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2303         ;;
2304         *)
2305             cpuflags="-mcpu=$cpu"
2306             case $cpu in
2307                 cortex-a*)                               subarch=armv7a  ;;
2308                 cortex-r*)                               subarch=armv7r  ;;
2309                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2310                 arm11*)                                  subarch=armv6   ;;
2311                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2312                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2313             esac
2314         ;;
2315     esac
2316
2317 elif enabled alpha; then
2318
2319     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2320
2321 elif enabled bfin; then
2322
2323     cpuflags="-mcpu=$cpu"
2324
2325 elif enabled mips; then
2326
2327     cpuflags="-march=$cpu"
2328
2329 elif enabled avr32; then
2330
2331     case $cpu in
2332         ap7[02]0[0-2])
2333             subarch="avr32_ap"
2334             cpuflags="-mpart=$cpu"
2335         ;;
2336         ap)
2337             subarch="avr32_ap"
2338             cpuflags="-march=$cpu"
2339         ;;
2340         uc3[ab]*)
2341             subarch="avr32_uc"
2342             cpuflags="-mcpu=$cpu"
2343         ;;
2344         uc)
2345             subarch="avr32_uc"
2346             cpuflags="-march=$cpu"
2347         ;;
2348     esac
2349
2350 fi
2351
2352 add_cflags $cpuflags
2353 add_asflags $cpuflags
2354
2355 # compiler sanity check
2356 check_exec <<EOF
2357 int main(void){ return 0; }
2358 EOF
2359 if test "$?" != 0; then
2360     echo "$cc is unable to create an executable file."
2361     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2362         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2363         echo "Only do this if you know what cross compiling means."
2364     fi
2365     die "C compiler test failed."
2366 fi
2367
2368 add_cppflags -D_ISOC99_SOURCE
2369 check_cflags -std=c99
2370 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2371 #include <stdlib.h>
2372 EOF
2373 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2374 #include <stdlib.h>
2375 EOF
2376
2377 check_host_cflags -std=c99
2378 check_host_cflags -Wall
2379
2380 case "$arch" in
2381     alpha|ia64|mips|parisc|sparc)
2382         spic=$shared
2383     ;;
2384     x86)
2385         subarch="x86_32"
2386         check_cc <<EOF && subarch="x86_64"
2387         int test[(int)sizeof(char*) - 7];
2388 EOF
2389         if test "$subarch" = "x86_64"; then
2390             spic=$shared
2391         fi
2392     ;;
2393     ppc)
2394         check_cc <<EOF && subarch="ppc64"
2395         int test[(int)sizeof(char*) - 7];
2396 EOF
2397     ;;
2398 esac
2399
2400 enable $subarch
2401 enabled spic && enable pic
2402
2403 # OS specific
2404 case $target_os in
2405     haiku)
2406         prefix_default="/boot/common"
2407         network_extralibs="-lnetwork"
2408         host_libs=
2409         ;;
2410     sunos)
2411         FFSERVERLDFLAGS=""
2412         SHFLAGS='-shared -Wl,-h,$$(@F)'
2413         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2414         network_extralibs="-lsocket -lnsl"
2415         add_cppflags -D__EXTENSIONS__
2416         nm_opts='-P -g'
2417         ;;
2418     netbsd)
2419         disable symver
2420         oss_indev_extralibs="-lossaudio"
2421         oss_outdev_extralibs="-lossaudio"
2422         ;;
2423     openbsd)
2424         enable malloc_aligned
2425         # On OpenBSD 4.5. the compiler does not use PIC unless
2426         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2427         # however the generated executable will not do anything
2428         # (simply quits with exit-code 1, no crash, no output).
2429         # Thus explicitly enable PIC here.
2430         enable pic
2431         disable symver
2432         SHFLAGS='-shared'
2433         oss_indev_extralibs="-lossaudio"
2434         oss_outdev_extralibs="-lossaudio"
2435         ;;
2436     dragonfly)
2437         enable malloc_aligned
2438         disable symver
2439         ;;
2440     freebsd)
2441         enable malloc_aligned
2442         ;;
2443     bsd/os)
2444         add_extralibs -lpoll -lgnugetopt
2445         strip="strip -d"
2446         ;;
2447     darwin)
2448         enable malloc_aligned
2449         gas="gas-preprocessor.pl $cc"
2450         enabled ppc && add_asflags -force_cpusubtype_ALL
2451         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2452         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2453         strip="${strip} -x"
2454         add_ldflags -Wl,-dynamic,-search_paths_first
2455         SLIBSUF=".dylib"
2456         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2457         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2458         FFSERVERLDFLAGS=-Wl,-bind_at_load
2459         objformat="macho"
2460         enabled x86_64 && objformat="macho64"
2461         enabled_any pic shared ||
2462             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2463         ;;
2464     mingw32*)
2465         if test $target_os = "mingw32ce"; then
2466             disable network
2467         else
2468             target_os=mingw32
2469         fi
2470         LIBTARGET=i386
2471         if enabled x86_64; then
2472             enable malloc_aligned
2473             LIBTARGET=x64
2474         elif enabled arm; then
2475             LIBTARGET=arm-wince
2476         fi
2477         shlibdir_default="$bindir_default"
2478         SLIBPREF=""
2479         SLIBSUF=".dll"
2480         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2481         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2482         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2483         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2484         SLIB_INSTALL_LINKS=
2485         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2486         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2487         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'
2488         objformat="win32"
2489         enable dos_paths
2490         check_cflags -fno-common
2491         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2492                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2493                 die "ERROR: MinGW runtime version must be >= 3.15."
2494         add_cppflags -U__STRICT_ANSI__
2495         ;;
2496     cygwin*)
2497         target_os=cygwin
2498         shlibdir_default="$bindir_default"
2499         SLIBPREF="cyg"
2500         SLIBSUF=".dll"
2501         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2502         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2503         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2504         objformat="win32"
2505         enable dos_paths
2506         check_cflags -fno-common
2507         add_cppflags -U__STRICT_ANSI__
2508         ;;
2509     *-dos|freedos|opendos)
2510         network_extralibs="-lsocket"
2511         objformat="coff"
2512         enable dos_paths
2513         add_cppflags -U__STRICT_ANSI__
2514         ;;
2515     linux)
2516         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2517         enable dv1394
2518         ;;
2519     irix*)
2520         target_os=irix
2521         ranlib="echo ignoring ranlib"
2522         ;;
2523     os/2*)
2524         strip="lxlite -CS"
2525         ln_s="cp -f"
2526         objformat="aout"
2527         add_cppflags -D_GNU_SOURCE
2528         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2529         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2530         FFSERVERLDFLAGS=""
2531         LIBSUF="_s.a"
2532         SLIBPREF=""
2533         SLIBSUF=".dll"
2534         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2535         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2536         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2537           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2538           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2539           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2540           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2541           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2542         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2543           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2544         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2545         enable dos_paths
2546         ;;
2547     gnu/kfreebsd)
2548         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2549         ;;
2550     gnu)
2551         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2552         ;;
2553     qnx)
2554         add_cppflags -D_QNX_SOURCE
2555         network_extralibs="-lsocket"
2556         ;;
2557     symbian)
2558         SLIBSUF=".dll"
2559         enable dos_paths
2560         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2561         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2562         add_ldflags -Wl,--target1-abs,--no-undefined \
2563                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2564                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2565         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2566                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2567                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2568         ;;
2569     none)
2570         ;;
2571     *)
2572         die "Unknown OS '$target_os'."
2573         ;;
2574 esac
2575
2576 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2577
2578 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2579
2580 set_default $PATHS_LIST
2581
2582 # we need to build at least one lib type
2583 if ! enabled_any static shared; then
2584     cat <<EOF
2585 At least one library type must be built.
2586 Specify --enable-static to build the static libraries or --enable-shared to
2587 build the shared libraries as well. To only build the shared libraries specify
2588 --disable-static in addition to --enable-shared.
2589 EOF
2590     exit 1;
2591 fi
2592
2593 die_license_disabled() {
2594     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2595 }
2596
2597 die_license_disabled gpl libx264
2598 die_license_disabled gpl libxavs
2599 die_license_disabled gpl libxvid
2600 die_license_disabled gpl x11grab
2601
2602 die_license_disabled nonfree libfaac
2603
2604 die_license_disabled version3 libopencore_amrnb
2605 die_license_disabled version3 libopencore_amrwb
2606 die_license_disabled version3 libvo_aacenc
2607 die_license_disabled version3 libvo_amrwbenc
2608
2609 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2610
2611 disabled optimizations || check_cflags -fomit-frame-pointer
2612
2613 enable_pic() {
2614     enable pic
2615     add_cppflags -DPIC
2616     add_cflags   -fPIC
2617     add_asflags  -fPIC
2618 }
2619
2620 enabled pic && enable_pic
2621
2622 check_cc <<EOF || die "Symbol mangling check failed."
2623 int ff_extern;
2624 EOF
2625 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2626 extern_prefix=${sym%%ff_extern*}
2627
2628 check_cc <<EOF && enable inline_asm
2629 void foo(void) { __asm__ volatile ("" ::); }
2630 EOF
2631
2632 _restrict=
2633 for restrict_keyword in restrict __restrict__ __restrict; do
2634     check_cc <<EOF && _restrict=$restrict_keyword && break
2635 void foo(char * $restrict_keyword p);
2636 EOF
2637 done
2638
2639 check_cc <<EOF && enable attribute_packed
2640 struct { int x; } __attribute__((packed)) x;
2641 EOF
2642
2643 check_cc <<EOF && enable attribute_may_alias
2644 union { int x; } __attribute__((may_alias)) x;
2645 EOF
2646
2647 check_cc <<EOF || die "endian test failed"
2648 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2649 EOF
2650 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2651
2652 if enabled alpha; then
2653
2654     check_cflags -mieee
2655
2656 elif enabled arm; then
2657
2658     enabled thumb && check_cflags -mthumb || check_cflags -marm
2659     nogas=die
2660
2661     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2662         enable vfp_args
2663     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2664         case "${cross_prefix:-$cc}" in
2665             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2666             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2667 __asm__ (".eabi_attribute 28, 1");
2668 int main(void) { return 0; }
2669 EOF
2670         esac
2671         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2672     fi
2673
2674     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2675     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2676     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2677     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2678     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2679     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2680     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2681
2682     enabled_all armv6t2 shared !pic && enable_pic
2683
2684 elif enabled mips; then
2685
2686     check_asm loongson '"dmult.g $1, $2, $3"'
2687     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2688
2689 elif enabled ppc; then
2690
2691     enable local_aligned_8 local_aligned_16
2692
2693     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2694     check_asm ibm_asm   '"add 0, 0, 0"'
2695     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2696     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2697
2698     # AltiVec flags: The FSF version of GCC differs from the Apple version
2699     if enabled altivec; then
2700         nogas=warn
2701         check_cflags -maltivec -mabi=altivec &&
2702         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2703         check_cflags -faltivec
2704
2705         # check if our compiler supports Motorola AltiVec C API
2706         check_cc <<EOF || disable altivec
2707 $inc_altivec_h
2708 int main(void) {
2709     vector signed int v1, v2, v3;
2710     v1 = vec_add(v2,v3);
2711     return 0;
2712 }
2713 EOF
2714
2715         # check if our compiler supports braces for vector declarations
2716         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2717 $inc_altivec_h
2718 int main (void) { (vector int) {1}; return 0; }
2719 EOF
2720     fi
2721
2722 elif enabled sparc; then
2723
2724     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2725         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2726
2727 elif enabled x86; then
2728
2729     enable local_aligned_8 local_aligned_16
2730
2731     # check whether EBP is available on x86
2732     # As 'i' is stored on the stack, this program will crash
2733     # if the base pointer is used to access it because the
2734     # base pointer is cleared in the inline assembly code.
2735     check_exec_crash <<EOF && enable ebp_available
2736     volatile int i=0;
2737     __asm__ volatile (
2738         "xorl %%ebp, %%ebp"
2739     ::: "%ebp");
2740     return i;
2741 EOF
2742
2743     # check whether EBX is available on x86
2744     check_asm ebx_available '""::"b"(0)' &&
2745         check_asm ebx_available '"":::"%ebx"'
2746
2747     # check whether xmm clobbers are supported
2748     check_asm xmm_clobbers '"":::"%xmm0"'
2749
2750     # check whether binutils is new enough to compile SSSE3/MMX2
2751     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2752     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2753
2754     check_asm bswap '"bswap %%eax" ::: "%eax"'
2755
2756     if ! disabled_any asm mmx yasm; then
2757         if check_cmd $yasmexe --version; then
2758             enabled x86_64 && yasm_extra="-m amd64"
2759             yasm_debug="-g dwarf2"
2760         elif check_cmd nasm -v; then
2761             yasmexe=nasm
2762             yasm_debug="-g -F dwarf"
2763             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2764         fi
2765
2766         YASMFLAGS="-f $objformat $yasm_extra"
2767         enabled pic               && append YASMFLAGS "-DPIC"
2768         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2769         case "$objformat" in
2770             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2771         esac
2772
2773         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2774             die "yasm not found, use --disable-yasm for a crippled build"
2775         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2776     fi
2777
2778     case "$cpu" in
2779         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2780             disable fast_clz
2781         ;;
2782     esac
2783
2784 fi
2785
2786 if enabled asm; then
2787     as=${gas:=$as}
2788     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2789         $nogas "GNU assembler not found, install gas-preprocessor"
2790 fi
2791
2792 check_ldflags -Wl,--as-needed
2793
2794 if check_func dlopen; then
2795     ldl=
2796 elif check_func dlopen -ldl; then
2797     ldl=-ldl
2798 fi
2799
2800 if enabled network; then
2801     check_type "sys/types.h sys/socket.h" socklen_t
2802     check_type netdb.h "struct addrinfo"
2803     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2804     check_type netinet/in.h "struct sockaddr_in6"
2805     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2806     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2807     # Prefer arpa/inet.h over winsock2
2808     if check_header arpa/inet.h ; then
2809         check_func closesocket
2810     elif check_header winsock2.h ; then
2811         check_func_headers winsock2.h closesocket -lws2 && \
2812             network_extralibs="-lws2" || \
2813         { check_func_headers winsock2.h closesocket -lws2_32 && \
2814             network_extralibs="-lws2_32"; }
2815         check_type ws2tcpip.h socklen_t
2816         check_type ws2tcpip.h "struct addrinfo"
2817         check_type ws2tcpip.h "struct ipv6_mreq"
2818         check_type ws2tcpip.h "struct sockaddr_in6"
2819         check_type ws2tcpip.h "struct sockaddr_storage"
2820         check_struct winsock2.h "struct sockaddr" sa_len
2821     else
2822         disable network
2823     fi
2824 fi
2825
2826 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2827 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2828
2829 check_func  fcntl
2830 check_func  fork
2831 check_func  getaddrinfo $network_extralibs
2832 check_func  gethrtime
2833 check_func  getrusage
2834 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2835 check_func  inet_aton $network_extralibs
2836 check_func  isatty
2837 check_func  localtime_r
2838 check_func  ${malloc_prefix}memalign            && enable memalign
2839 check_func  mkstemp
2840 check_func  mmap
2841 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2842 check_func  setrlimit
2843 check_func  strerror_r
2844 check_func  strptime
2845 check_func  strtok_r
2846 check_func_headers conio.h kbhit
2847 check_func_headers windows.h PeekNamedPipe
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 openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2952                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2953                         die "ERROR: openal not found"; } &&
2954                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2955                         die "ERROR: openal version must be 1.1 or compatible"; }
2956 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2957
2958 SDL_CONFIG="${cross_prefix}sdl-config"
2959 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2960     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2961     enable sdl &&
2962     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2963 else
2964   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2965     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2966     sdl_libs=$("${SDL_CONFIG}" --libs)
2967     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2968     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2969     enable sdl &&
2970     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2971   fi
2972 fi
2973 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2974
2975 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2976
2977 check_header linux/fb.h
2978 check_header linux/videodev.h
2979 check_header linux/videodev2.h
2980 check_header sys/videoio.h
2981
2982 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2983 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2984 # w32api 3.12 had it defined wrong
2985 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2986
2987 check_type "dshow.h" IBaseFilter
2988
2989 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2990 { check_header dev/bktr/ioctl_meteor.h &&
2991   check_header dev/bktr/ioctl_bt848.h; } ||
2992 { check_header machine/ioctl_meteor.h &&
2993   check_header machine/ioctl_bt848.h; } ||
2994 { check_header dev/video/meteor/ioctl_meteor.h &&
2995   check_header dev/video/bktr/ioctl_bt848.h; } ||
2996 check_header dev/ic/bt8xx.h
2997
2998 check_header sndio.h
2999 if check_struct sys/soundcard.h audio_buf_info bytes; then
3000     enable_safe sys/soundcard.h
3001 else
3002     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3003     #include <sys/soundcard.h>
3004     audio_buf_info abc;
3005 EOF
3006 fi
3007 check_header soundcard.h
3008
3009 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3010
3011 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3012
3013 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3014
3015 enabled x11grab                         &&
3016 check_header X11/Xlib.h                 &&
3017 check_header X11/extensions/XShm.h      &&
3018 check_header X11/extensions/Xfixes.h    &&
3019 check_func XOpenDisplay -lX11           &&
3020 check_func XShmCreateImage -lX11 -lXext &&
3021 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3022
3023 if ! disabled vaapi; then
3024     check_lib va/va.h vaInitialize -lva && {
3025         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3026         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3027     } || disable vaapi
3028 fi
3029
3030 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3031 check_cpp_condition \
3032     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3033     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3034       disable vdpau; }
3035 fi
3036
3037 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3038
3039 # add some useful compiler flags if supported
3040 check_cflags -Wdeclaration-after-statement
3041 check_cflags -Wall
3042 check_cflags -Wno-parentheses
3043 check_cflags -Wno-switch
3044 check_cflags -Wno-format-zero-length
3045 check_cflags -Wdisabled-optimization
3046 check_cflags -Wpointer-arith
3047 check_cflags -Wredundant-decls
3048 check_cflags -Wno-pointer-sign
3049 check_cflags -Wcast-qual
3050 check_cflags -Wwrite-strings
3051 check_cflags -Wtype-limits
3052 check_cflags -Wundef
3053 check_cflags -Wmissing-prototypes
3054 check_cflags -Wno-pointer-to-int-cast
3055 enabled extra_warnings && check_cflags -Winline
3056
3057 # add some linker flags
3058 check_ldflags -Wl,--warn-common
3059 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3060 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3061
3062 echo "X{};" > $TMPV
3063 if test_ldflags -Wl,--version-script,$TMPV; then
3064     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3065     check_cc <<EOF && enable symver_asm_label
3066 void ff_foo(void) __asm__ ("av_foo@VERSION");
3067 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3068 EOF
3069     check_cc <<EOF && enable symver_gnu_asm
3070 __asm__(".symver ff_foo,av_foo@VERSION");
3071 void ff_foo(void) {}
3072 EOF
3073 fi
3074
3075 if [ -n "$optflags" ]; then
3076     add_cflags $optflags
3077 elif enabled small; then
3078     add_cflags $size_cflags
3079 elif enabled optimizations; then
3080     add_cflags $speed_cflags
3081 else
3082     add_cflags $noopt_cflags
3083 fi
3084 check_cflags -fno-math-errno
3085 check_cflags -fno-signed-zeros
3086
3087 if enabled icc; then
3088     # Just warnings, no remarks
3089     check_cflags -w1
3090     # -wd: Disable following warnings
3091     # 144, 167, 556: -Wno-pointer-sign
3092     # 1292: attribute "foo" ignored
3093     # 10006: ignoring unknown option -fno-signed-zeros
3094     # 10148: ignoring unknown option -Wno-parentheses
3095     # 10156: ignoring option '-W'; no argument required
3096     check_cflags -wd144,167,556,1292,10006,10148,10156
3097     # 11030: Warning unknown option --as-needed
3098     # 10156: ignoring option '-export'; no argument required
3099     check_ldflags -wd10156,11030
3100     # Allow to compile with optimizations
3101     check_ldflags -march=$cpu
3102     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3103     enable ebp_available
3104     if enabled x86_32; then
3105         test ${icc_version%%.*} -ge 11 && \
3106             check_cflags -falign-stack=maintain-16-byte || \
3107             disable aligned_stack
3108     fi
3109 elif enabled ccc; then
3110     # disable some annoying warnings
3111     add_cflags -msg_disable cvtu32to64
3112     add_cflags -msg_disable embedcomment
3113     add_cflags -msg_disable needconstext
3114     add_cflags -msg_disable nomainieee
3115     add_cflags -msg_disable ptrmismatch1
3116     add_cflags -msg_disable unreachcode
3117 elif enabled gcc; then
3118     check_cflags -fno-tree-vectorize
3119     check_cflags -Werror=implicit-function-declaration
3120     check_cflags -Werror=missing-prototypes
3121 elif enabled llvm_gcc; then
3122     check_cflags -mllvm -stack-alignment=16
3123 elif enabled clang; then
3124     check_cflags -mllvm -stack-alignment=16
3125     check_cflags -Qunused-arguments
3126 elif enabled armcc; then
3127     # 2523: use of inline assembler is deprecated
3128     add_cflags -W${armcc_opt},--diag_suppress=2523
3129     add_cflags -W${armcc_opt},--diag_suppress=1207
3130     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3131     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3132     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3133     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3134 elif enabled tms470; then
3135     add_cflags -pds=824 -pds=837
3136 elif enabled pathscale; then
3137     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3138 fi
3139
3140 enabled_any $THREADS_LIST      && enable threads
3141
3142 check_deps $CONFIG_LIST       \
3143            $CONFIG_EXTRA      \
3144            $HAVE_LIST         \
3145            $DECODER_LIST      \
3146            $ENCODER_LIST      \
3147            $HWACCEL_LIST      \
3148            $PARSER_LIST       \
3149            $BSF_LIST          \
3150            $DEMUXER_LIST      \
3151            $MUXER_LIST        \
3152            $FILTER_LIST       \
3153            $INDEV_LIST        \
3154            $OUTDEV_LIST       \
3155            $PROTOCOL_LIST     \
3156            $ACODEC_TESTS      \
3157            $VCODEC_TESTS      \
3158            $LAVF_TESTS        \
3159            $LAVFI_TESTS       \
3160            $SEEK_TESTS        \
3161
3162 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3163
3164 if test $target_os == "haiku"; then
3165     disable memalign
3166     disable posix_memalign
3167 fi
3168
3169 ! enabled_any memalign posix_memalign malloc_aligned &&
3170     enabled_any $need_memalign && enable memalign_hack
3171
3172 echo "install prefix            $prefix"
3173 echo "source path               $source_path"
3174 echo "C compiler                $cc"
3175 echo "ARCH                      $arch ($cpu)"
3176 if test "$build_suffix" != ""; then
3177     echo "build suffix              $build_suffix"
3178 fi
3179 if test "$progs_suffix" != ""; then
3180     echo "progs suffix              $progs_suffix"
3181 fi
3182 if test "$extra_version" != ""; then
3183     echo "version string suffix     $extra_version"
3184 fi
3185 echo "big-endian                ${bigendian-no}"
3186 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3187 if enabled x86; then
3188     echo "${yasmexe}                      ${yasm-no}"
3189     echo "MMX enabled               ${mmx-no}"
3190     echo "MMX2 enabled              ${mmx2-no}"
3191     echo "3DNow! enabled            ${amd3dnow-no}"
3192     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3193     echo "SSE enabled               ${sse-no}"
3194     echo "SSSE3 enabled             ${ssse3-no}"
3195     echo "AVX enabled               ${avx-no}"
3196     echo "CMOV enabled              ${cmov-no}"
3197     echo "CMOV is fast              ${fast_cmov-no}"
3198     echo "EBX available             ${ebx_available-no}"
3199     echo "EBP available             ${ebp_available-no}"
3200 fi
3201 if enabled arm; then
3202     echo "ARMv5TE enabled           ${armv5te-no}"
3203     echo "ARMv6 enabled             ${armv6-no}"
3204     echo "ARMv6T2 enabled           ${armv6t2-no}"
3205     echo "ARM VFP enabled           ${armvfp-no}"
3206     echo "IWMMXT enabled            ${iwmmxt-no}"
3207     echo "NEON enabled              ${neon-no}"
3208 fi
3209 if enabled mips; then
3210     echo "MMI enabled               ${mmi-no}"
3211 fi
3212 if enabled ppc; then
3213     echo "AltiVec enabled           ${altivec-no}"
3214     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3215     echo "dcbzl available           ${dcbzl-no}"
3216 fi
3217 if enabled sparc; then
3218     echo "VIS enabled               ${vis-no}"
3219 fi
3220 echo "debug symbols             ${debug-no}"
3221 echo "strip symbols             ${stripping-no}"
3222 echo "optimize for size         ${small-no}"
3223 echo "optimizations             ${optimizations-no}"
3224 echo "static                    ${static-no}"
3225 echo "shared                    ${shared-no}"
3226 echo "postprocessing support    ${postproc-no}"
3227 echo "new filter support        ${avfilter-no}"
3228 echo "network support           ${network-no}"
3229 echo "threading support         ${thread_type-no}"
3230 echo "SDL support               ${sdl-no}"
3231 echo "Sun medialib support      ${mlib-no}"
3232 echo "libdxva2 enabled          ${dxva2-no}"
3233 echo "libva enabled             ${vaapi-no}"
3234 echo "libvdpau enabled          ${vdpau-no}"
3235 echo "AVISynth enabled          ${avisynth-no}"
3236 echo "libcelt enabled           ${libcelt-no}"
3237 echo "frei0r enabled            ${frei0r-no}"
3238 echo "libdc1394 support         ${libdc1394-no}"
3239 echo "libdirac enabled          ${libdirac-no}"
3240 echo "libfaac enabled           ${libfaac-no}"
3241 echo "libgsm enabled            ${libgsm-no}"
3242 echo "libmp3lame enabled        ${libmp3lame-no}"
3243 echo "libnut enabled            ${libnut-no}"
3244 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3245 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3246 echo "libopencv support         ${libopencv-no}"
3247 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3248 echo "librtmp enabled           ${librtmp-no}"
3249 echo "libschroedinger enabled   ${libschroedinger-no}"
3250 echo "libspeex enabled          ${libspeex-no}"
3251 echo "libtheora enabled         ${libtheora-no}"
3252 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3253 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3254 echo "libvorbis enabled         ${libvorbis-no}"
3255 echo "libvpx enabled            ${libvpx-no}"
3256 echo "libx264 enabled           ${libx264-no}"
3257 echo "libxavs enabled           ${libxavs-no}"
3258 echo "libxvid enabled           ${libxvid-no}"
3259 echo "openal enabled            ${openal-no}"
3260 echo "zlib enabled              ${zlib-no}"
3261 echo "bzlib enabled             ${bzlib-no}"
3262 echo
3263
3264 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3265     echo "Enabled ${type}s:"
3266     eval list=\$$(toupper $type)_LIST
3267     print_enabled '_*' $list | sort | pr -r -3 -t
3268     echo
3269 done
3270
3271 license="LGPL version 2.1 or later"
3272 if enabled nonfree; then
3273     license="nonfree and unredistributable"
3274 elif enabled gplv3; then
3275     license="GPL version 3 or later"
3276 elif enabled lgplv3; then
3277     license="LGPL version 3 or later"
3278 elif enabled gpl; then
3279     license="GPL version 2 or later"
3280 fi
3281
3282 echo "License: $license"
3283
3284 echo "Creating config.mak and config.h..."
3285
3286 test -e Makefile || $ln_s "$source_path/Makefile" .
3287
3288 enabled stripping || strip="echo skipping strip"
3289
3290 config_files="$TMPH config.mak"
3291
3292 cat > config.mak <<EOF
3293 # Automatically generated by configure - do not modify!
3294 ifndef FFMPEG_CONFIG_MAK
3295 FFMPEG_CONFIG_MAK=1
3296 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3297 prefix=$prefix
3298 LIBDIR=\$(DESTDIR)$libdir
3299 SHLIBDIR=\$(DESTDIR)$shlibdir
3300 INCDIR=\$(DESTDIR)$incdir
3301 BINDIR=\$(DESTDIR)$bindir
3302 DATADIR=\$(DESTDIR)$datadir
3303 MANDIR=\$(DESTDIR)$mandir
3304 SRC_PATH=$source_path
3305 ifndef MAIN_MAKEFILE
3306 SRC_PATH:=\$(SRC_PATH:.%=..%)
3307 endif
3308 CC_IDENT=$cc_ident
3309 ARCH=$arch
3310 CC=$cc
3311 AS=$as
3312 LD=$ld
3313 DEPCC=$dep_cc
3314 YASM=$yasmexe
3315 YASMDEP=$yasmexe
3316 AR=$ar
3317 RANLIB=$ranlib
3318 CP=cp -p
3319 LN_S=$ln_s
3320 STRIP=$strip
3321 CPPFLAGS=$CPPFLAGS
3322 CFLAGS=$CFLAGS
3323 ASFLAGS=$ASFLAGS
3324 AS_O=$CC_O
3325 CC_O=$CC_O
3326 LDFLAGS=$LDFLAGS
3327 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3328 SHFLAGS=$SHFLAGS
3329 YASMFLAGS=$YASMFLAGS
3330 BUILDSUF=$build_suffix
3331 PROGSSUF=$progs_suffix
3332 FULLNAME=$FULLNAME
3333 LIBPREF=$LIBPREF
3334 LIBSUF=$LIBSUF
3335 LIBNAME=$LIBNAME
3336 SLIBPREF=$SLIBPREF
3337 SLIBSUF=$SLIBSUF
3338 EXESUF=$EXESUF
3339 EXTRA_VERSION=$extra_version
3340 DEPFLAGS=$DEPFLAGS
3341 CCDEP=$CCDEP
3342 ASDEP=$ASDEP
3343 CC_DEPFLAGS=$CC_DEPFLAGS
3344 AS_DEPFLAGS=$AS_DEPFLAGS
3345 HOSTCC=$host_cc
3346 HOSTCFLAGS=$host_cflags
3347 HOSTEXESUF=$HOSTEXESUF
3348 HOSTLDFLAGS=$host_ldflags
3349 HOSTLIBS=$host_libs
3350 TARGET_EXEC=$target_exec
3351 TARGET_PATH=$target_path
3352 SDL_LIBS=$sdl_libs
3353 SDL_CFLAGS=$sdl_cflags
3354 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3355 EXTRALIBS=$extralibs
3356 INSTALL=$install
3357 LIBTARGET=${LIBTARGET}
3358 SLIBNAME=${SLIBNAME}
3359 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3360 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3361 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3362 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3363 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3364 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3365 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3366 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3367 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3368 EOF
3369
3370 get_version(){
3371     name=$1
3372     file=$source_path/$2
3373     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3374     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3375     lcname=$(tolower $name)
3376     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3377     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3378 }
3379
3380 get_version LIBSWSCALE  libswscale/swscale.h
3381 get_version LIBPOSTPROC libpostproc/postprocess.h
3382 get_version LIBAVCODEC  libavcodec/version.h
3383 get_version LIBAVDEVICE libavdevice/avdevice.h
3384 get_version LIBAVFORMAT libavformat/version.h
3385 get_version LIBAVUTIL   libavutil/avutil.h
3386 get_version LIBAVFILTER libavfilter/avfilter.h
3387
3388 cat > $TMPH <<EOF
3389 /* Automatically generated by configure - do not modify! */
3390 #ifndef FFMPEG_CONFIG_H
3391 #define FFMPEG_CONFIG_H
3392 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3393 #define FFMPEG_LICENSE "$(c_escape $license)"
3394 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3395 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3396 #define CC_TYPE "$cc_type"
3397 #define CC_VERSION $cc_version
3398 #define restrict $_restrict
3399 #define EXTERN_PREFIX "${extern_prefix}"
3400 #define EXTERN_ASM ${extern_prefix}
3401 #define SLIBSUF "$SLIBSUF"
3402 EOF
3403
3404 test -n "$malloc_prefix" &&
3405     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3406
3407 if enabled small || disabled optimizations; then
3408     echo "#undef  av_always_inline"  >> $TMPH
3409     if enabled small; then
3410         echo "#define av_always_inline inline"  >> $TMPH
3411     else
3412         echo "#define av_always_inline av_unused"  >> $TMPH
3413     fi
3414 fi
3415
3416 if enabled yasm; then
3417     append config_files $TMPASM
3418     printf '' >$TMPASM
3419 fi
3420
3421 print_config ARCH_   "$config_files" $ARCH_LIST
3422 print_config HAVE_   "$config_files" $HAVE_LIST
3423 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3424                                      $CONFIG_EXTRA      \
3425                                      $DECODER_LIST      \
3426                                      $ENCODER_LIST      \
3427                                      $HWACCEL_LIST      \
3428                                      $PARSER_LIST       \
3429                                      $BSF_LIST          \
3430                                      $DEMUXER_LIST      \
3431                                      $MUXER_LIST        \
3432                                      $FILTER_LIST       \
3433                                      $PROTOCOL_LIST     \
3434                                      $INDEV_LIST        \
3435                                      $OUTDEV_LIST       \
3436
3437 cat >>config.mak <<EOF
3438 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3439 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3440 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3441 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3442 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3443 EOF
3444
3445 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3446 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3447
3448 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3449 cp_if_changed $TMPH config.h
3450 touch .config
3451
3452 enabled yasm && cp_if_changed $TMPASM config.asm
3453
3454 cat > $TMPH <<EOF
3455 /* Generated by ffconf */
3456 #ifndef AVUTIL_AVCONFIG_H
3457 #define AVUTIL_AVCONFIG_H
3458 EOF
3459
3460 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3461
3462 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3463
3464 cp_if_changed $TMPH libavutil/avconfig.h
3465
3466 test -n "$WARNINGS" && printf "\n$WARNINGS"
3467
3468 # build pkg-config files
3469
3470 pkgconfig_generate(){
3471 name=$1
3472 shortname=${name#lib}${build_suffix}
3473 comment=$2
3474 version=$3
3475 libs=$4
3476 requires=$5
3477 enabled ${name#lib} || return 0
3478 mkdir -p $name
3479 cat <<EOF > $name/$name.pc
3480 prefix=$prefix
3481 exec_prefix=\${prefix}
3482 libdir=$libdir
3483 includedir=$incdir
3484
3485 Name: $name
3486 Description: $comment
3487 Version: $version
3488 Requires: $(enabled shared || echo $requires)
3489 Requires.private: $(enabled shared && echo $requires)
3490 Conflicts:
3491 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3492 Libs.private: $(enabled shared && echo $libs)
3493 Cflags: -I\${includedir}
3494 EOF
3495 cat <<EOF > $name/$name-uninstalled.pc
3496 prefix=
3497 exec_prefix=
3498 libdir=\${pcfiledir}
3499 includedir=${source_path}
3500
3501 Name: $name
3502 Description: $comment
3503 Version: $version
3504 Requires: $requires
3505 Conflicts:
3506 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3507 Cflags: -I\${includedir}
3508 EOF
3509 }
3510
3511 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3512 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3513 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3514 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3515 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3516 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3517 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"