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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --enable-postproc        enable GPLed postprocessing support [no]
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [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   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 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-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libfreetype     enable libfreetype [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 183                            native implementation exists [no]
 184   --enable-libvpx          enable VP8 support via libvpx [no]
 185   --enable-libx264         enable H.264 encoding via x264 [no]
 186   --enable-libxavs         enable AVS encoding via xavs [no]
 187   --enable-libxvid         enable Xvid encoding via xvidcore,
 188                            native MPEG-4/Xvid encoder exists [no]
 189   --enable-mlib            enable Sun medialib [no]
 190   --enable-zlib            enable zlib [autodetect]
 191
 192 Advanced options (experts only):
 193   --source-path=PATH       path to source code [$source_path]
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240
 241 Developer options (useful when working on FFmpeg itself):
 242   --disable-debug          disable debugging symbols
 243   --enable-debug=LEVEL     set the debug level [$debuglevel]
 244   --disable-optimizations  disable compiler optimizations
 245   --enable-extra-warnings  enable more compiler warnings
 246   --disable-stripping      disable stripping of executables and shared libraries
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" &&
 879         echo "$2 is unchanged" ||
 880         cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     audio_float
 905     avcodec
 906     avdevice
 907     avfilter
 908     avformat
 909     avisynth
 910     bzlib
 911     crystalhd
 912     dct
 913     doc
 914     dwt
 915     dxva2
 916     fastdiv
 917     ffmpeg
 918     ffplay
 919     ffprobe
 920     ffserver
 921     fft
 922     frei0r
 923     golomb
 924     gpl
 925     gray
 926     h264dsp
 927     h264pred
 928     hardcoded_tables
 929     huffman
 930     libdc1394
 931     libdirac
 932     libfaac
 933     libfreetype
 934     libgsm
 935     libmp3lame
 936     libnut
 937     libopencore_amrnb
 938     libopencore_amrwb
 939     libopencv
 940     libopenjpeg
 941     librtmp
 942     libschroedinger
 943     libspeex
 944     libtheora
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudio_hp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     vaapi
 971     vdpau
 972     version3
 973     x11grab
 974     zlib
 975 "
 976
 977 THREADS_LIST='
 978     pthreads
 979     w32threads
 980 '
 981
 982 ARCH_LIST='
 983     alpha
 984     arm
 985     avr32
 986     avr32_ap
 987     avr32_uc
 988     bfin
 989     ia64
 990     m68k
 991     mips
 992     mips64
 993     parisc
 994     ppc
 995     ppc64
 996     s390
 997     sh4
 998     sparc
 999     sparc64
1000     tomi
1001     x86
1002     x86_32
1003     x86_64
1004 '
1005
1006 ARCH_EXT_LIST='
1007     altivec
1008     amd3dnow
1009     amd3dnowext
1010     armv5te
1011     armv6
1012     armv6t2
1013     armvfp
1014     avx
1015     iwmmxt
1016     mmi
1017     mmx
1018     mmx2
1019     neon
1020     ppc4xx
1021     sse
1022     ssse3
1023     vis
1024 '
1025
1026 HAVE_LIST_PUB='
1027     bigendian
1028     fast_unaligned
1029 '
1030
1031 HAVE_LIST="
1032     $ARCH_EXT_LIST
1033     $HAVE_LIST_PUB
1034     $THREADS_LIST
1035     aligned_stack
1036     alsa_asoundlib_h
1037     altivec_h
1038     arpa_inet_h
1039     attribute_may_alias
1040     attribute_packed
1041     bswap
1042     closesocket
1043     cmov
1044     dcbzl
1045     dev_bktr_ioctl_bt848_h
1046     dev_bktr_ioctl_meteor_h
1047     dev_ic_bt8xx_h
1048     dev_video_meteor_ioctl_meteor_h
1049     dev_video_bktr_ioctl_bt848_h
1050     dlfcn_h
1051     dlopen
1052     dos_paths
1053     ebp_available
1054     ebx_available
1055     exp2
1056     exp2f
1057     fast_64bit
1058     fast_clz
1059     fast_cmov
1060     fcntl
1061     fork
1062     getaddrinfo
1063     gethrtime
1064     GetProcessMemoryInfo
1065     GetProcessTimes
1066     getrusage
1067     gnu_as
1068     struct_rusage_ru_maxrss
1069     ibm_asm
1070     inet_aton
1071     inline_asm
1072     isatty
1073     kbhit
1074     ldbrx
1075     libdc1394_1
1076     libdc1394_2
1077     llrint
1078     llrintf
1079     local_aligned_16
1080     local_aligned_8
1081     localtime_r
1082     log2
1083     log2f
1084     loongson
1085     lrint
1086     lrintf
1087     lzo1x_999_compress
1088     machine_ioctl_bt848_h
1089     machine_ioctl_meteor_h
1090     malloc_h
1091     MapViewOfFile
1092     memalign
1093     mkstemp
1094     mmap
1095     pld
1096     posix_memalign
1097     round
1098     roundf
1099     sdl
1100     sdl_video_size
1101     setmode
1102     sndio_h
1103     socklen_t
1104     soundcard_h
1105     poll_h
1106     setrlimit
1107     strerror_r
1108     strtok_r
1109     struct_addrinfo
1110     struct_ipv6_mreq
1111     struct_sockaddr_in6
1112     struct_sockaddr_sa_len
1113     struct_sockaddr_storage
1114     symver
1115     symver_gnu_asm
1116     symver_asm_label
1117     sys_mman_h
1118     sys_resource_h
1119     sys_select_h
1120     sys_soundcard_h
1121     sys_videoio_h
1122     ten_operands
1123     termios_h
1124     threads
1125     truncf
1126     vfp_args
1127     VirtualAlloc
1128     winsock2_h
1129     xform_asm
1130     xmm_clobbers
1131     yasm
1132 "
1133
1134 # options emitted with CONFIG_ prefix but not available on command line
1135 CONFIG_EXTRA="
1136     avutil
1137     gplv3
1138     lgplv3
1139 "
1140
1141 CMDLINE_SELECT="
1142     $ARCH_EXT_LIST
1143     $CONFIG_LIST
1144     $THREADS_LIST
1145     asm
1146     cross_compile
1147     debug
1148     extra_warnings
1149     logging
1150     optimizations
1151     stripping
1152     symver
1153     yasm
1154 "
1155
1156 PATHS_LIST='
1157     bindir
1158     datadir
1159     incdir
1160     libdir
1161     mandir
1162     prefix
1163     shlibdir
1164 '
1165
1166 CMDLINE_SET="
1167     $PATHS_LIST
1168     ar
1169     arch
1170     as
1171     build_suffix
1172     cc
1173     cpu
1174     cross_prefix
1175     dep_cc
1176     extra_version
1177     host_cc
1178     host_cflags
1179     host_ldflags
1180     host_libs
1181     host_os
1182     ld
1183     logfile
1184     malloc_prefix
1185     nm
1186     pkg_config
1187     samples
1188     source_path
1189     strip
1190     sysinclude
1191     sysroot
1192     target_exec
1193     target_os
1194     target_path
1195 "
1196
1197 CMDLINE_APPEND="
1198     extra_cflags
1199 "
1200
1201 # code dependency declarations
1202
1203 # architecture extensions
1204
1205 armv5te_deps="arm"
1206 armv6_deps="arm"
1207 armv6t2_deps="arm"
1208 armvfp_deps="arm"
1209 iwmmxt_deps="arm"
1210 neon_deps="arm"
1211
1212 mmi_deps="mips"
1213
1214 altivec_deps="ppc"
1215 ppc4xx_deps="ppc"
1216
1217 vis_deps="sparc"
1218
1219 x86_64_suggest="cmov fast_cmov"
1220 amd3dnow_deps="mmx"
1221 amd3dnowext_deps="amd3dnow"
1222 mmx_deps="x86"
1223 mmx2_deps="mmx"
1224 sse_deps="mmx"
1225 ssse3_deps="sse"
1226 avx_deps="ssse3"
1227
1228 aligned_stack_if_any="ppc x86"
1229 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1230 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1231 fast_unaligned_if_any="armv6 ppc x86"
1232
1233 need_memalign="altivec neon sse"
1234 inline_asm_deps="!tms470"
1235
1236 symver_if_any="symver_asm_label symver_gnu_asm"
1237
1238 # subsystems
1239 dct_select="rdft"
1240 mdct_select="fft"
1241 rdft_select="fft"
1242
1243 # decoders / encoders / hardware accelerators
1244 aac_decoder_select="mdct rdft sinewin"
1245 aac_encoder_select="mdct sinewin"
1246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1247 ac3_decoder_select="mdct ac3dsp ac3_parser"
1248 ac3_encoder_select="mdct ac3dsp"
1249 ac3_fixed_encoder_select="ac3dsp"
1250 alac_encoder_select="lpc"
1251 amrnb_decoder_select="lsp"
1252 amrwb_decoder_select="lsp"
1253 atrac1_decoder_select="mdct sinewin"
1254 atrac3_decoder_select="mdct"
1255 binkaudio_dct_decoder_select="mdct rdft dct"
1256 binkaudio_rdft_decoder_select="mdct rdft"
1257 cavs_decoder_select="golomb"
1258 cook_decoder_select="mdct sinewin"
1259 cscd_decoder_suggest="zlib"
1260 dca_decoder_select="mdct"
1261 dnxhd_encoder_select="aandct"
1262 dxa_decoder_select="zlib"
1263 eac3_decoder_select="ac3_decoder"
1264 eamad_decoder_select="aandct"
1265 eatgq_decoder_select="aandct"
1266 eatqi_decoder_select="aandct"
1267 ffv1_decoder_select="golomb"
1268 flac_decoder_select="golomb"
1269 flac_encoder_select="golomb lpc"
1270 flashsv_decoder_select="zlib"
1271 flashsv_encoder_select="zlib"
1272 flv_decoder_select="h263_decoder"
1273 flv_encoder_select="h263_encoder"
1274 fraps_decoder_select="huffman"
1275 h261_encoder_select="aandct"
1276 h263_decoder_select="h263_parser"
1277 h263_encoder_select="aandct"
1278 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1279 h263i_decoder_select="h263_decoder"
1280 h263p_encoder_select="h263_encoder"
1281 h264_decoder_select="golomb h264dsp h264pred"
1282 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1283 h264_dxva2_hwaccel_deps="dxva2api_h"
1284 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1285 h264_vaapi_hwaccel_select="vaapi"
1286 h264_vdpau_decoder_select="vdpau h264_decoder"
1287 imc_decoder_select="fft mdct"
1288 jpegls_decoder_select="golomb"
1289 jpegls_encoder_select="golomb"
1290 ljpeg_encoder_select="aandct"
1291 loco_decoder_select="golomb"
1292 mjpeg_encoder_select="aandct"
1293 mlp_decoder_select="mlp_parser"
1294 mp1float_decoder_select="dct"
1295 mp2float_decoder_select="dct"
1296 mp3adufloat_decoder_select="dct"
1297 mp3float_decoder_select="dct"
1298 mp3on4float_decoder_select="dct"
1299 mpeg1video_encoder_select="aandct"
1300 mpeg2video_encoder_select="aandct"
1301 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1302 mpeg4_encoder_select="h263_encoder"
1303 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1304 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1305 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1306 mpeg2_crystalhd_decoder_select="crystalhd"
1307 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1308 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1309 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1310 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1311 mpeg4_crystalhd_decoder_select="crystalhd"
1312 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1313 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1314 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1315 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1316 msmpeg4_crystalhd_decoder_select="crystalhd"
1317 msmpeg4v1_decoder_select="h263_decoder"
1318 msmpeg4v1_encoder_select="h263_encoder"
1319 msmpeg4v2_decoder_select="h263_decoder"
1320 msmpeg4v2_encoder_select="h263_encoder"
1321 msmpeg4v3_decoder_select="h263_decoder"
1322 msmpeg4v3_encoder_select="h263_encoder"
1323 nellymoser_decoder_select="mdct sinewin"
1324 nellymoser_encoder_select="mdct sinewin"
1325 png_decoder_select="zlib"
1326 png_encoder_select="zlib"
1327 qcelp_decoder_select="lsp"
1328 qdm2_decoder_select="mdct rdft"
1329 ra_144_encoder_select="lpc"
1330 rv10_decoder_select="h263_decoder"
1331 rv10_encoder_select="h263_encoder"
1332 rv20_decoder_select="h263_decoder"
1333 rv20_encoder_select="h263_encoder"
1334 rv30_decoder_select="golomb h264pred"
1335 rv40_decoder_select="golomb h264pred"
1336 shorten_decoder_select="golomb"
1337 sipr_decoder_select="lsp"
1338 snow_decoder_select="dwt"
1339 snow_encoder_select="aandct dwt"
1340 sonic_decoder_select="golomb"
1341 sonic_encoder_select="golomb"
1342 sonic_ls_encoder_select="golomb"
1343 svq1_encoder_select="aandct"
1344 svq3_decoder_select="golomb h264dsp h264pred"
1345 svq3_decoder_suggest="zlib"
1346 theora_decoder_select="vp3_decoder"
1347 tiff_decoder_suggest="zlib"
1348 tiff_encoder_suggest="zlib"
1349 truehd_decoder_select="mlp_decoder"
1350 tscc_decoder_select="zlib"
1351 twinvq_decoder_select="mdct lsp sinewin"
1352 vc1_decoder_select="h263_decoder"
1353 vc1_crystalhd_decoder_select="crystalhd"
1354 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1355 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1356 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1357 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1358 vorbis_decoder_select="mdct"
1359 vorbis_encoder_select="mdct"
1360 vp6_decoder_select="huffman"
1361 vp6a_decoder_select="vp6_decoder"
1362 vp6f_decoder_select="vp6_decoder"
1363 vp8_decoder_select="h264pred"
1364 wmapro_decoder_select="mdct sinewin"
1365 wmav1_decoder_select="mdct sinewin"
1366 wmav1_encoder_select="mdct sinewin"
1367 wmav2_decoder_select="mdct sinewin"
1368 wmav2_encoder_select="mdct sinewin"
1369 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1370 wmv1_decoder_select="h263_decoder"
1371 wmv1_encoder_select="h263_encoder"
1372 wmv2_decoder_select="h263_decoder"
1373 wmv2_encoder_select="h263_encoder"
1374 wmv3_decoder_select="vc1_decoder"
1375 wmv3_crystalhd_decoder_select="crystalhd"
1376 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1377 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1378 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1379 zlib_decoder_select="zlib"
1380 zlib_encoder_select="zlib"
1381 zmbv_decoder_select="zlib"
1382 zmbv_encoder_select="zlib"
1383
1384 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1385 vaapi_deps="va_va_h"
1386 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1387
1388 # parsers
1389 h264_parser_select="golomb h264dsp h264pred"
1390
1391 # external libraries
1392 libdirac_decoder_deps="libdirac !libschroedinger"
1393 libdirac_encoder_deps="libdirac"
1394 libfaac_encoder_deps="libfaac"
1395 libgsm_decoder_deps="libgsm"
1396 libgsm_encoder_deps="libgsm"
1397 libgsm_ms_decoder_deps="libgsm"
1398 libgsm_ms_encoder_deps="libgsm"
1399 libmp3lame_encoder_deps="libmp3lame"
1400 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1401 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1402 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1403 libopenjpeg_decoder_deps="libopenjpeg"
1404 libschroedinger_decoder_deps="libschroedinger"
1405 libschroedinger_encoder_deps="libschroedinger"
1406 libspeex_decoder_deps="libspeex"
1407 libtheora_encoder_deps="libtheora"
1408 libvorbis_encoder_deps="libvorbis"
1409 libvpx_decoder_deps="libvpx"
1410 libvpx_encoder_deps="libvpx"
1411 libx264_encoder_deps="libx264"
1412 libxavs_encoder_deps="libxavs"
1413 libxvid_encoder_deps="libxvid"
1414
1415 # demuxers / muxers
1416 ac3_demuxer_select="ac3_parser"
1417 asf_stream_muxer_select="asf_muxer"
1418 avisynth_demuxer_deps="avisynth"
1419 dirac_demuxer_select="dirac_parser"
1420 eac3_demuxer_select="ac3_parser"
1421 flac_demuxer_select="flac_parser"
1422 ipod_muxer_select="mov_muxer"
1423 libnut_demuxer_deps="libnut"
1424 libnut_muxer_deps="libnut"
1425 matroska_audio_muxer_select="matroska_muxer"
1426 matroska_demuxer_suggest="zlib bzlib"
1427 mov_demuxer_suggest="zlib"
1428 mp3_demuxer_select="mpegaudio_parser"
1429 mp4_muxer_select="mov_muxer"
1430 mpegtsraw_demuxer_select="mpegts_demuxer"
1431 mxf_d10_muxer_select="mxf_muxer"
1432 ogg_demuxer_select="golomb"
1433 psp_muxer_select="mov_muxer"
1434 rtp_demuxer_select="sdp_demuxer"
1435 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1436 rtsp_demuxer_select="http_protocol rtpdec"
1437 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1438 sap_demuxer_select="sdp_demuxer"
1439 sap_muxer_select="rtp_muxer rtp_protocol"
1440 sdp_demuxer_select="rtpdec"
1441 spdif_muxer_select="aac_parser"
1442 tg2_muxer_select="mov_muxer"
1443 tgp_muxer_select="mov_muxer"
1444 w64_demuxer_deps="wav_demuxer"
1445
1446 # indevs / outdevs
1447 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1448 alsa_outdev_deps="alsa_asoundlib_h"
1449 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1450 dv1394_indev_deps="dv1394 dv_demuxer"
1451 fbdev_indev_deps="linux_fb_h"
1452 jack_indev_deps="jack_jack_h"
1453 libdc1394_indev_deps="libdc1394"
1454 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1455 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1456 sndio_indev_deps="sndio_h"
1457 sndio_outdev_deps="sndio_h"
1458 v4l_indev_deps="linux_videodev_h"
1459 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1460 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1461 vfwcap_indev_extralibs="-lavicap32"
1462 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1463 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1464
1465 # protocols
1466 gopher_protocol_deps="network"
1467 http_protocol_deps="network"
1468 http_protocol_select="tcp_protocol"
1469 mmsh_protocol_select="http_protocol"
1470 mmst_protocol_deps="network"
1471 rtmp_protocol_select="tcp_protocol"
1472 rtp_protocol_select="udp_protocol"
1473 tcp_protocol_deps="network"
1474 udp_protocol_deps="network"
1475
1476 # filters
1477 blackframe_filter_deps="gpl"
1478 cropdetect_filter_deps="gpl"
1479 drawtext_filter_deps="libfreetype"
1480 frei0r_filter_deps="frei0r dlopen strtok_r"
1481 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1482 hqdn3d_filter_deps="gpl"
1483 mp_filter_deps="gpl"
1484 ocv_filter_deps="libopencv"
1485 scale_filter_deps="swscale"
1486 yadif_filter_deps="gpl"
1487
1488 # libraries
1489 avdevice_deps="avcodec avformat"
1490 avformat_deps="avcodec"
1491
1492 # programs
1493 ffmpeg_deps="avcodec avformat swscale"
1494 ffmpeg_select="buffer_filter"
1495 ffplay_deps="avcodec avformat swscale sdl"
1496 ffplay_select="rdft"
1497 ffprobe_deps="avcodec avformat"
1498 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1499 ffserver_extralibs='$ldl'
1500
1501 doc_deps="texi2html"
1502
1503 # tests
1504
1505 test_deps(){
1506     suf1=$1
1507     suf2=$2
1508     shift 2
1509     for v; do
1510         dep=${v%=*}
1511         tests=${v#*=}
1512         for name in ${tests}; do
1513             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1514         done
1515     done
1516 }
1517
1518 set_ne_test_deps(){
1519     eval ${1}_be_test_deps="bigendian"
1520     eval ${1}_le_test_deps="!bigendian"
1521 }
1522
1523 test_deps _encoder _decoder                                             \
1524     adpcm_g726=g726                                                     \
1525     adpcm_ima_qt                                                        \
1526     adpcm_ima_wav                                                       \
1527     adpcm_ms                                                            \
1528     adpcm_swf                                                           \
1529     adpcm_yamaha=adpcm_yam                                              \
1530     alac                                                                \
1531     asv1                                                                \
1532     asv2                                                                \
1533     bmp                                                                 \
1534     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1535     dvvideo="dv dv50"                                                   \
1536     ffv1                                                                \
1537     flac                                                                \
1538     flashsv                                                             \
1539     flv                                                                 \
1540     gif                                                                 \
1541     h261                                                                \
1542     h263="h263 h263p"                                                   \
1543     huffyuv                                                             \
1544     jpegls                                                              \
1545     mjpeg="jpg mjpeg ljpeg"                                             \
1546     mp2                                                                 \
1547     mpeg1video="mpeg mpeg1b"                                            \
1548     mpeg2video="mpeg2 mpeg2thread"                                      \
1549     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1550     msmpeg4v3=msmpeg4                                                   \
1551     msmpeg4v2                                                           \
1552     pbm=pbmpipe                                                         \
1553     pcx                                                                 \
1554     pgm="pgm pgmpipe"                                                   \
1555     png                                                                 \
1556     ppm="ppm ppmpipe"                                                   \
1557     rawvideo="rgb yuv"                                                  \
1558     roq                                                                 \
1559     rv10                                                                \
1560     rv20                                                                \
1561     sgi                                                                 \
1562     snow="snow snowll"                                                  \
1563     svq1                                                                \
1564     targa=tga                                                           \
1565     tiff                                                                \
1566     wmav1                                                               \
1567     wmav2                                                               \
1568     wmv1                                                                \
1569     wmv2                                                                \
1570
1571 test_deps _muxer _demuxer                                               \
1572     aiff                                                                \
1573     pcm_alaw=alaw                                                       \
1574     asf                                                                 \
1575     au                                                                  \
1576     avi                                                                 \
1577     dv=dv_fmt                                                           \
1578     ffm                                                                 \
1579     flv=flv_fmt                                                         \
1580     gxf                                                                 \
1581     matroska=mkv                                                        \
1582     mmf                                                                 \
1583     mov                                                                 \
1584     pcm_mulaw=mulaw                                                     \
1585     mxf                                                                 \
1586     nut                                                                 \
1587     ogg                                                                 \
1588     rawvideo=pixfmt                                                     \
1589     rm                                                                  \
1590     swf                                                                 \
1591     mpegts=ts                                                           \
1592     voc                                                                 \
1593     wav                                                                 \
1594     yuv4mpegpipe=yuv4mpeg                                               \
1595
1596 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1597 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1598
1599 set_ne_test_deps pixdesc
1600 set_ne_test_deps pixfmts_copy
1601 set_ne_test_deps pixfmts_crop
1602 set_ne_test_deps pixfmts_hflip
1603 set_ne_test_deps pixfmts_null
1604 set_ne_test_deps pixfmts_pad
1605 set_ne_test_deps pixfmts_scale
1606 set_ne_test_deps pixfmts_vflip
1607
1608 # default parameters
1609
1610 logfile="config.log"
1611
1612 # installation paths
1613 prefix_default="/usr/local"
1614 bindir_default='${prefix}/bin'
1615 datadir_default='${prefix}/share/ffmpeg'
1616 incdir_default='${prefix}/include'
1617 libdir_default='${prefix}/lib'
1618 mandir_default='${prefix}/share/man'
1619 shlibdir_default="$libdir_default"
1620
1621 # toolchain
1622 ar_default="ar"
1623 cc_default="gcc"
1624 cc_version=\"unknown\"
1625 host_cc_default="gcc"
1626 ln_s="ln -sf"
1627 nm_default="nm"
1628 objformat="elf"
1629 pkg_config_default=pkg-config
1630 ranlib="ranlib"
1631 strip_default="strip"
1632 yasmexe="yasm"
1633 nogas=":"
1634
1635 nm_opts='-g'
1636
1637 # machine
1638 arch_default=$(uname -m)
1639 cpu="generic"
1640
1641 # OS
1642 target_os_default=$(tolower $(uname -s))
1643 host_os=$target_os_default
1644
1645 # configurable options
1646 enable avcodec
1647 enable avdevice
1648 enable avfilter
1649 enable avformat
1650 enable avutil
1651 enable asm
1652 enable debug
1653 enable doc
1654 enable fastdiv
1655 enable ffmpeg
1656 enable ffplay
1657 enable ffprobe
1658 enable ffserver
1659 enable mpegaudio_hp
1660 enable network
1661 enable optimizations
1662 enable protocols
1663 enable static
1664 enable stripping
1665 enable swscale
1666 enable swscale_alpha
1667
1668 # build settings
1669 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1670 FFSERVERLDFLAGS=-Wl,-E
1671 LIBPREF="lib"
1672 LIBSUF=".a"
1673 FULLNAME='$(NAME)$(BUILDSUF)'
1674 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1675 SLIBPREF="lib"
1676 SLIBSUF=".so"
1677 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1678 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1679 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1680 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1681
1682 CC_O='-o $@'
1683
1684 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1685 host_libs='-lm'
1686
1687 target_path='$(CURDIR)'
1688
1689 # since the object filename is not given with the -MM flag, the compiler
1690 # is only able to print the basename, and we must add the path ourselves
1691 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1692 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1693
1694 # find source path
1695 source_path="$(dirname "$0")"
1696 enable source_path_used
1697 if test -f configure; then
1698     source_path="$(pwd)"
1699     disable source_path_used
1700 else
1701     source_path="$(cd "$source_path"; pwd)"
1702     echo "$source_path" | grep -q '[[:blank:]]' &&
1703         die "Out of tree builds are impossible with whitespace in source path."
1704     test -e "$source_path/config.h" &&
1705         die "Out of tree builds are impossible with config.h in source dir."
1706 fi
1707
1708 for v in "$@"; do
1709     r=${v#*=}
1710     l=${v%"$r"}
1711     r=$(sh_quote "$r")
1712     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1713 done
1714
1715 find_things(){
1716     thing=$1
1717     pattern=$2
1718     file=$source_path/$3
1719     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1720 }
1721
1722 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1723 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1724 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1725 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1726 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1727 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1728 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1729 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1730 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1731 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1732 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1733
1734 find_tests(){
1735     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1736 }
1737
1738 ACODEC_TESTS=$(find_tests acodec)
1739 VCODEC_TESTS=$(find_tests vsynth1)
1740 LAVF_TESTS=$(find_tests lavf)
1741 LAVFI_TESTS=$(find_tests lavfi)
1742 SEEK_TESTS=$(find_tests seek seek_)
1743
1744 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1745
1746 for n in $COMPONENT_LIST; do
1747     v=$(toupper ${n%s})_LIST
1748     eval enable \$$v
1749     eval ${n}_if_any="\$$v"
1750 done
1751
1752 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1753
1754 die_unknown(){
1755     echo "Unknown option \"$1\"."
1756     echo "See $0 --help for available options."
1757     exit 1
1758 }
1759
1760 show_list() {
1761     suffix=_$1
1762     shift
1763     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1764     exit 0
1765 }
1766
1767 for opt do
1768     optval="${opt#*=}"
1769     case "$opt" in
1770     --extra-ldflags=*) add_ldflags $optval
1771     ;;
1772     --extra-libs=*) add_extralibs $optval
1773     ;;
1774     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1775     ;;
1776     --enable-debug=*) debuglevel="$optval"
1777     ;;
1778     --disable-everything)
1779     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1780     ;;
1781     --enable-*=*|--disable-*=*)
1782     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1783     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1784     eval list=\$$(toupper $thing)_LIST
1785     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1786     $action $(filter "$name" $list)
1787     ;;
1788     --enable-?*|--disable-?*)
1789     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1790     if is_in $option $COMPONENT_LIST; then
1791         test $action = disable && action=unset
1792         eval $action \$$(toupper ${option%s})_LIST
1793     elif is_in $option $CMDLINE_SELECT; then
1794         $action $option
1795     else
1796         die_unknown $opt
1797     fi
1798     ;;
1799     --list-*)
1800         NAME="${opt#--list-}"
1801         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1802         NAME=${NAME%s}
1803         eval show_list $NAME \$$(toupper $NAME)_LIST
1804     ;;
1805     --help|-h) show_help
1806     ;;
1807     *)
1808     optname="${opt%%=*}"
1809     optname="${optname#--}"
1810     optname=$(echo "$optname" | sed 's/-/_/g')
1811     if is_in $optname $CMDLINE_SET; then
1812         eval $optname='$optval'
1813     elif is_in $optname $CMDLINE_APPEND; then
1814         append $optname "$optval"
1815     else
1816          die_unknown $opt
1817     fi
1818     ;;
1819     esac
1820 done
1821
1822 disabled logging && logfile=/dev/null
1823
1824 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1825 set >> $logfile
1826
1827 test -n "$cross_prefix" && enable cross_compile
1828
1829 if enabled cross_compile; then
1830     test -n "$arch" && test -n "$target_os" ||
1831         die "Must specify target arch and OS when cross-compiling"
1832 fi
1833
1834 set_default arch target_os
1835
1836 ar_default="${cross_prefix}${ar_default}"
1837 cc_default="${cross_prefix}${cc_default}"
1838 nm_default="${cross_prefix}${nm_default}"
1839 pkg_config_default="${cross_prefix}${pkg_config_default}"
1840 ranlib="${cross_prefix}${ranlib}"
1841 strip_default="${cross_prefix}${strip_default}"
1842
1843 sysinclude_default="${sysroot}/usr/include"
1844
1845 set_default cc nm pkg_config strip sysinclude
1846 enabled cross_compile || host_cc_default=$cc
1847 set_default host_cc
1848
1849 exesuf() {
1850     case $1 in
1851         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1852     esac
1853 }
1854
1855 EXESUF=$(exesuf $target_os)
1856 HOSTEXESUF=$(exesuf $host_os)
1857
1858 # set temporary file name
1859 : ${TMPDIR:=$TEMPDIR}
1860 : ${TMPDIR:=$TMP}
1861 : ${TMPDIR:=/tmp}
1862
1863 if ! check_cmd mktemp -u XXXXXX; then
1864     # simple replacement for missing mktemp
1865     # NOT SAFE FOR GENERAL USE
1866     mktemp(){
1867         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1868     }
1869 fi
1870
1871 tmpfile(){
1872     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1873         (set -C; exec > $tmp) 2>/dev/null ||
1874         die "Unable to create temporary file in $TMPDIR."
1875     append TMPFILES $tmp
1876     eval $1=$tmp
1877 }
1878
1879 trap 'rm -f -- $TMPFILES' EXIT
1880
1881 tmpfile TMPC  .c
1882 tmpfile TMPE  $EXESUF
1883 tmpfile TMPH  .h
1884 tmpfile TMPO  .o
1885 tmpfile TMPS  .S
1886 tmpfile TMPV  .ver
1887 tmpfile TMPSH .sh
1888 tmpfile TMPASM .asm
1889
1890 unset -f mktemp
1891
1892 chmod +x $TMPE
1893
1894 # make sure we can execute files in $TMPDIR
1895 cat > $TMPSH 2>> $logfile <<EOF
1896 #! /bin/sh
1897 EOF
1898 chmod +x $TMPSH >> $logfile 2>&1
1899 if ! $TMPSH >> $logfile 2>&1; then
1900     cat <<EOF
1901 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1902 variable to another directory and make sure that it is not mounted noexec.
1903 EOF
1904     die "Sanity test failed."
1905 fi
1906
1907 filter_cflags=echo
1908 filter_cppflags=echo
1909 filter_asflags=echo
1910
1911 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1912     cc_type=llvm_gcc
1913     cc_version=__VERSION__
1914     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1915     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1916     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1917     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1918     speed_cflags='-O3'
1919     size_cflags='-Os'
1920 elif $cc -v 2>&1 | grep -qi ^gcc; then
1921     cc_type=gcc
1922     cc_version=__VERSION__
1923     gcc_version=$($cc --version | head -n1)
1924     gcc_basever=$($cc -dumpversion)
1925     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1926     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1927     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1928     if ! $cc -dumpversion | grep -q '^2\.'; then
1929         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1930         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1931     fi
1932     speed_cflags='-O3'
1933     size_cflags='-Os'
1934 elif $cc --version 2>/dev/null | grep -q Intel; then
1935     cc_type=icc
1936     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1937     cc_ident=$($cc --version | head -n1)
1938     icc_version=$($cc -dumpversion)
1939     CC_DEPFLAGS='-MMD'
1940     AS_DEPFLAGS='-MMD'
1941     speed_cflags='-O3'
1942     size_cflags='-Os'
1943     noopt_cflags='-O1'
1944 elif $cc -v 2>&1 | grep -q xlc; then
1945     cc_type=xlc
1946     cc_version="AV_STRINGIFY(__IBMC__)"
1947     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1948     speed_cflags='-O5'
1949     size_cflags='-O5 -qcompact'
1950 elif $cc -V 2>/dev/null | grep -q Compaq; then
1951     cc_type=ccc
1952     cc_version="AV_STRINGIFY(__DECC_VER)"
1953     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1954     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1955     debuglevel=3
1956     add_ldflags -Wl,-z,now # calls to libots crash without this
1957     speed_cflags='-fast'
1958     size_cflags='-O1'
1959 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1960     test -d "$sysroot" || die "No valid sysroot specified."
1961     cc_type=armcc
1962     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1963     cc_ident=$($cc --vsn | head -n1)
1964     armcc_conf="$PWD/armcc.conf"
1965     $cc --arm_linux_configure                 \
1966         --arm_linux_config_file="$armcc_conf" \
1967         --configure_sysroot="$sysroot"        \
1968         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1969         die "Error creating armcc configuration file."
1970     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1971     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1972     as_default="${cross_prefix}gcc"
1973     CC_DEPFLAGS='-MMD'
1974     AS_DEPFLAGS='-MMD'
1975     speed_cflags='-O3'
1976     size_cflags='-Os'
1977     filter_asflags="filter_out -W${armcc_opt}*"
1978 elif $cc -version 2>/dev/null | grep -q TMS470; then
1979     cc_type=tms470
1980     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1981     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1982     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1983     CC_O='-fr=$(@D)'
1984     as_default="${cross_prefix}gcc"
1985     ld_default="${cross_prefix}gcc"
1986     TMPO=$(basename $TMPC .c).o
1987     append TMPFILES $TMPO
1988     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1989     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1990     AS_DEPFLAGS='-MMD'
1991     speed_cflags='-O3 -mf=5'
1992     size_cflags='-O3 -mf=2'
1993     filter_cflags=tms470_flags
1994     tms470_flags(){
1995         for flag; do
1996             case $flag in
1997                 -march=*|-mcpu=*)
1998                     case "${flag#*=}" in
1999                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2000                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2001                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2002                         armv6*|arm11*)          echo -mv=6   ;;
2003                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2004                                                 echo -mv=5e  ;;
2005                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2006                     esac
2007                     ;;
2008                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2009                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2010                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2011                 -msoft-float)   echo --float_support=vfplib       ;;
2012                 -O[0-3]|-mf=*)  echo $flag                        ;;
2013                 -g)             echo -g -mn                       ;;
2014                 -pds=*)         echo $flag                        ;;
2015             esac
2016         done
2017     }
2018 elif $cc -v 2>&1 | grep -q clang; then
2019     cc_type=clang
2020     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2021         cc_version=__clang_version__ || cc_version=__VERSION__
2022     cc_ident=$($cc --version | head -n1)
2023     CC_DEPFLAGS='-MMD'
2024     AS_DEPFLAGS='-MMD'
2025     speed_cflags='-O3'
2026     size_cflags='-Os'
2027 elif $cc -V 2>&1 | grep -q Sun; then
2028     cc_type=suncc
2029     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2030     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2031     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2032     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2033     speed_cflags='-O5'
2034     size_cflags='-O5 -xspace'
2035     filter_cflags=suncc_flags
2036     suncc_flags(){
2037         for flag; do
2038             case $flag in
2039                 -march=*|-mcpu=*)
2040                     case "${flag#*=}" in
2041                         native)                   echo -xtarget=native       ;;
2042                         v9|niagara)               echo -xarch=sparc          ;;
2043                         ultrasparc)               echo -xarch=sparcvis       ;;
2044                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2045                         i586|pentium)             echo -xchip=pentium        ;;
2046                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2047                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2048                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2049                         pentium4*)          echo -xtarget=pentium4           ;;
2050                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2051                         *-sse3)             echo -xarch=sse3                 ;;
2052                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2053                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2054                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2055                         k8|opteron|athlon64|athlon-fx)
2056                                                   echo -xarch=sse2a          ;;
2057                         athlon*)                  echo -xarch=pentium_proa   ;;
2058                     esac
2059                     ;;
2060                 -std=c99)             echo -xc99              ;;
2061                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2062                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2063                 -W*,*)                echo $flag              ;;
2064                 -f*-*|-W*)                                    ;;
2065                 *)                    echo $flag              ;;
2066             esac
2067         done
2068     }
2069 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2070     cc_type=pathscale
2071     cc_version=__PATHSCALE__
2072     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2073     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2074     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2075     speed_cflags='-O2'
2076     size_cflags='-Os'
2077 elif $cc -v 2>&1 | grep -q Open64; then
2078     cc_type=open64
2079     cc_version=__OPEN64__
2080     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2081     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2082     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2083     speed_cflags='-O2'
2084     size_cflags='-Os'
2085 fi
2086
2087 test -n "$cc_type" && enable $cc_type ||
2088     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2089
2090 : ${as_default:=$cc}
2091 : ${dep_cc_default:=$cc}
2092 : ${ld_default:=$cc}
2093 set_default ar as dep_cc ld
2094
2095 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2096 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2097
2098 add_cflags $extra_cflags
2099 add_asflags $extra_cflags
2100
2101 if test -n "$sysroot"; then
2102     case "$cc_type" in
2103         gcc|llvm_gcc|clang)
2104             add_cppflags --sysroot="$sysroot"
2105             add_ldflags --sysroot="$sysroot"
2106         ;;
2107         tms470)
2108             add_cppflags -I"$sysinclude"
2109             add_ldflags  --sysroot="$sysroot"
2110         ;;
2111     esac
2112 fi
2113
2114 if test "$cpu" = host; then
2115     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2116
2117     case "$cc_type" in
2118         gcc|llvm_gcc)
2119             check_native(){
2120                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2121                 sed -n "/$1=/{
2122                             s/.*$1=\\([^ ]*\\).*/\\1/
2123                             p
2124                             q
2125                         }" $TMPE
2126             }
2127             cpu=$(check_native -march || check_native -mcpu)
2128         ;;
2129     esac
2130
2131     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2132 fi
2133
2134 # Deal with common $arch aliases
2135 case "$arch" in
2136     arm*)
2137         arch="arm"
2138     ;;
2139     mips|mipsel|IP*)
2140         arch="mips"
2141     ;;
2142     mips64*)
2143         arch="mips"
2144         subarch="mips64"
2145     ;;
2146     parisc|hppa)
2147         arch="parisc"
2148     ;;
2149     parisc64|hppa64)
2150         arch="parisc"
2151         subarch="parisc64"
2152     ;;
2153     "Power Macintosh"|ppc|powerpc)
2154         arch="ppc"
2155     ;;
2156     ppc64|powerpc64)
2157         arch="ppc"
2158         subarch="ppc64"
2159     ;;
2160     s390|s390x)
2161         arch="s390"
2162     ;;
2163     sh4|sh)
2164         arch="sh4"
2165     ;;
2166     sun4u|sparc64)
2167         arch="sparc"
2168         subarch="sparc64"
2169     ;;
2170     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2171         arch="x86"
2172     ;;
2173 esac
2174
2175 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2176 enable $arch
2177
2178 # Add processor-specific flags
2179 if test "$cpu" = generic; then
2180     : do nothing
2181 elif enabled ppc; then
2182
2183     case $(tolower $cpu) in
2184         601|ppc601|powerpc601)
2185             cpuflags="-mcpu=601"
2186             disable altivec
2187         ;;
2188         603*|ppc603*|powerpc603*)
2189             cpuflags="-mcpu=603"
2190             disable altivec
2191         ;;
2192         604*|ppc604*|powerpc604*)
2193             cpuflags="-mcpu=604"
2194             disable altivec
2195         ;;
2196         g3|75*|ppc75*|powerpc75*)
2197             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2198             disable altivec
2199         ;;
2200         g4|745*|ppc745*|powerpc745*)
2201             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2202         ;;
2203         74*|ppc74*|powerpc74*)
2204             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2205         ;;
2206         g5|970|ppc970|powerpc970|power4*)
2207             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2208         ;;
2209         cell)
2210             cpuflags="-mcpu=cell"
2211             enable ldbrx
2212         ;;
2213         e500v2)
2214             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2215             disable altivec
2216         ;;
2217         e500)
2218             cpuflags="-mcpu=8540 -mhard-float"
2219             disable altivec
2220         ;;
2221     esac
2222
2223 elif enabled x86; then
2224
2225     case $cpu in
2226         i[345]86|pentium)
2227             cpuflags="-march=$cpu"
2228             disable mmx
2229         ;;
2230         # targets that do NOT support conditional mov (cmov)
2231         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2232             cpuflags="-march=$cpu"
2233             disable cmov
2234         ;;
2235         # targets that do support conditional mov (cmov)
2236         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2237             cpuflags="-march=$cpu"
2238             enable cmov
2239             enable fast_cmov
2240         ;;
2241         # targets that do support conditional mov but on which it's slow
2242         pentium4|pentium4m|prescott|nocona)
2243             cpuflags="-march=$cpu"
2244             enable cmov
2245             disable fast_cmov
2246         ;;
2247     esac
2248
2249 elif enabled sparc; then
2250
2251     case $cpu in
2252         niagara)
2253             cpuflags="-mcpu=$cpu"
2254             disable vis
2255         ;;
2256         sparc64)
2257             cpuflags="-mcpu=v9"
2258         ;;
2259     esac
2260
2261 elif enabled arm; then
2262
2263     case $cpu in
2264         armv*)
2265             cpuflags="-march=$cpu"
2266             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2267         ;;
2268         *)
2269             cpuflags="-mcpu=$cpu"
2270             case $cpu in
2271                 cortex-a*)                               subarch=armv7a  ;;
2272                 cortex-r*)                               subarch=armv7r  ;;
2273                 cortex-m*)                               subarch=armv7m  ;;
2274                 arm11*)                                  subarch=armv6   ;;
2275                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2276                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2277             esac
2278         ;;
2279     esac
2280
2281 elif enabled alpha; then
2282
2283     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2284
2285 elif enabled bfin; then
2286
2287     cpuflags="-mcpu=$cpu"
2288
2289 elif enabled mips; then
2290
2291     cpuflags="-march=$cpu"
2292
2293 elif enabled avr32; then
2294
2295     case $cpu in
2296         ap7[02]0[0-2])
2297             subarch="avr32_ap"
2298             cpuflags="-mpart=$cpu"
2299         ;;
2300         ap)
2301             subarch="avr32_ap"
2302             cpuflags="-march=$cpu"
2303         ;;
2304         uc3[ab]*)
2305             subarch="avr32_uc"
2306             cpuflags="-mcpu=$cpu"
2307         ;;
2308         uc)
2309             subarch="avr32_uc"
2310             cpuflags="-march=$cpu"
2311         ;;
2312     esac
2313
2314 fi
2315
2316 add_cflags $cpuflags
2317 add_asflags $cpuflags
2318
2319 # compiler sanity check
2320 check_exec <<EOF
2321 int main(void){ return 0; }
2322 EOF
2323 if test "$?" != 0; then
2324     echo "$cc is unable to create an executable file."
2325     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2326         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2327         echo "Only do this if you know what cross compiling means."
2328     fi
2329     die "C compiler test failed."
2330 fi
2331
2332 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2333 check_cflags -std=c99
2334 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2335 #include <stdlib.h>
2336 EOF
2337 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2338 #include <stdlib.h>
2339 EOF
2340
2341 check_host_cflags -std=c99
2342
2343 case "$arch" in
2344     alpha|ia64|mips|parisc|sparc)
2345         spic=$shared
2346     ;;
2347     x86)
2348         subarch="x86_32"
2349         check_cc <<EOF && subarch="x86_64"
2350         int test[(int)sizeof(char*) - 7];
2351 EOF
2352         if test "$subarch" = "x86_64"; then
2353             spic=$shared
2354         fi
2355     ;;
2356 esac
2357
2358 enable $subarch
2359 enabled spic && enable pic
2360
2361 # OS specific
2362 case $target_os in
2363     haiku)
2364         prefix_default="/boot/common"
2365         network_extralibs="-lnetwork"
2366         host_libs=
2367         ;;
2368     sunos)
2369         FFSERVERLDFLAGS=""
2370         SHFLAGS='-shared -Wl,-h,$$(@F)'
2371         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2372         network_extralibs="-lsocket -lnsl"
2373         add_cppflags -D__EXTENSIONS__
2374         nm_opts='-P -g'
2375         ;;
2376     netbsd)
2377         disable symver
2378         oss_indev_extralibs="-lossaudio"
2379         oss_outdev_extralibs="-lossaudio"
2380         add_cppflags -D_XOPEN_SOURCE=600
2381         ;;
2382     openbsd)
2383         enable malloc_aligned
2384         # On OpenBSD 4.5. the compiler does not use PIC unless
2385         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2386         # however the generated executable will not do anything
2387         # (simply quits with exit-code 1, no crash, no output).
2388         # Thus explicitly enable PIC here.
2389         enable pic
2390         disable symver
2391         SHFLAGS='-shared'
2392         oss_indev_extralibs="-lossaudio"
2393         oss_outdev_extralibs="-lossaudio"
2394         ;;
2395     dragonfly)
2396         enable malloc_aligned
2397         disable symver
2398         ;;
2399     freebsd)
2400         enable malloc_aligned
2401         ;;
2402     bsd/os)
2403         add_extralibs -lpoll -lgnugetopt
2404         strip="strip -d"
2405         ;;
2406     darwin)
2407         enable malloc_aligned
2408         gas="gas-preprocessor.pl $cc"
2409         enabled ppc && add_asflags -force_cpusubtype_ALL
2410         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2411         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2412         strip="${strip} -x"
2413         add_ldflags -Wl,-dynamic,-search_paths_first
2414         SLIBSUF=".dylib"
2415         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2416         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2417         FFSERVERLDFLAGS=-Wl,-bind_at_load
2418         objformat="macho"
2419         enabled x86_64 && objformat="macho64"
2420         enabled_any pic shared ||
2421             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2422         ;;
2423     mingw32*)
2424         if test $target_os = "mingw32ce"; then
2425             disable network
2426         else
2427             target_os=mingw32
2428         fi
2429         LIBTARGET=i386
2430         if enabled x86_64; then
2431             enable malloc_aligned
2432             LIBTARGET=x64
2433         elif enabled arm; then
2434             LIBTARGET=arm-wince
2435         fi
2436         shlibdir_default="$bindir_default"
2437         SLIBPREF=""
2438         SLIBSUF=".dll"
2439         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2440         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2441         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2442         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2443             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2444             install -d "$(LIBDIR)"; \
2445             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2446         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2447         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'
2448         objformat="win32"
2449         enable dos_paths
2450         check_cflags -fno-common
2451         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2452                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2453                 die "ERROR: MinGW runtime version must be >= 3.15."
2454         add_cppflags -U__STRICT_ANSI__
2455         ;;
2456     cygwin*)
2457         target_os=cygwin
2458         shlibdir_default="$bindir_default"
2459         SLIBPREF="cyg"
2460         SLIBSUF=".dll"
2461         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2462         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2463         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2464         objformat="win32"
2465         enable dos_paths
2466         check_cflags -fno-common
2467         ;;
2468     *-dos|freedos|opendos)
2469         network_extralibs="-lsocket"
2470         objformat="coff"
2471         enable dos_paths
2472         ;;
2473     linux)
2474         enable dv1394
2475         ;;
2476     irix*)
2477         target_os=irix
2478         ranlib="echo ignoring ranlib"
2479         ;;
2480     os/2*)
2481         strip="lxlite -CS"
2482         ln_s="cp -f"
2483         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2484         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2485         FFSERVERLDFLAGS=""
2486         LIBSUF="_s.a"
2487         SLIBPREF=""
2488         SLIBSUF=".dll"
2489         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2490         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2491         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2492           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2493           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2494           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2495           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2496           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2497         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2498           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2499         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2500         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2501         enable dos_paths
2502         ;;
2503     gnu/kfreebsd)
2504         ;;
2505     gnu)
2506         ;;
2507     qnx)
2508         add_cppflags -D_QNX_SOURCE
2509         network_extralibs="-lsocket"
2510         ;;
2511     symbian)
2512         SLIBSUF=".dll"
2513         enable dos_paths
2514         add_cflags --include=$sysinclude/gcce/gcce.h
2515         ;;
2516     none)
2517         ;;
2518     *)
2519         die "Unknown OS '$target_os'."
2520         ;;
2521 esac
2522
2523 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2524
2525 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2526
2527 set_default $PATHS_LIST
2528
2529 # we need to build at least one lib type
2530 if ! enabled_any static shared; then
2531     cat <<EOF
2532 At least one library type must be built.
2533 Specify --enable-static to build the static libraries or --enable-shared to
2534 build the shared libraries as well. To only build the shared libraries specify
2535 --disable-static in addition to --enable-shared.
2536 EOF
2537     exit 1;
2538 fi
2539
2540 disabled static && LIBNAME=""
2541
2542 die_license_disabled() {
2543     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2544 }
2545
2546 die_license_disabled gpl libx264
2547 die_license_disabled gpl libxavs
2548 die_license_disabled gpl libxvid
2549 die_license_disabled gpl postproc
2550 die_license_disabled gpl x11grab
2551
2552 die_license_disabled nonfree libfaac
2553
2554 die_license_disabled version3 libopencore_amrnb
2555 die_license_disabled version3 libopencore_amrwb
2556
2557 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2558
2559 disabled optimizations || check_cflags -fomit-frame-pointer
2560
2561 enable_pic() {
2562     enable pic
2563     add_cppflags -DPIC
2564     add_cflags   -fPIC
2565     add_asflags  -fPIC
2566 }
2567
2568 enabled pic && enable_pic
2569
2570 check_cc <<EOF || die "Symbol mangling check failed."
2571 int ff_extern;
2572 EOF
2573 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2574 extern_prefix=${sym%%ff_extern*}
2575
2576 check_cc <<EOF && enable inline_asm
2577 void foo(void) { __asm__ volatile ("" ::); }
2578 EOF
2579
2580 _restrict=
2581 for restrict_keyword in restrict __restrict__ __restrict; do
2582     check_cc <<EOF && _restrict=$restrict_keyword && break
2583 void foo(char * $restrict_keyword p);
2584 EOF
2585 done
2586
2587 check_cc <<EOF && enable attribute_packed
2588 struct { int x; } __attribute__((packed)) x;
2589 EOF
2590
2591 check_cc <<EOF && enable attribute_may_alias
2592 union { int x; } __attribute__((may_alias)) x;
2593 EOF
2594
2595 check_cc <<EOF || die "endian test failed"
2596 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2597 EOF
2598 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2599
2600 if enabled alpha; then
2601
2602     check_cflags -mieee
2603
2604 elif enabled arm; then
2605
2606     check_cflags -marm
2607     nogas=die
2608
2609     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2610         enable vfp_args
2611     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2612         case "${cross_prefix:-$cc}" in
2613             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2614             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2615 __asm__ (".eabi_attribute 28, 1");
2616 int main(void) { return 0; }
2617 EOF
2618         esac
2619         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2620     fi
2621
2622     # We have to check if pld is a nop and disable it.
2623     check_asm pld '"pld [r0]"'
2624
2625     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2626     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2627     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2628     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2629     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2630     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2631
2632     enabled_all armv6t2 shared !pic && enable_pic
2633
2634 elif enabled mips; then
2635
2636     check_asm loongson '"dmult.g $1, $2, $3"'
2637     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2638
2639 elif enabled ppc; then
2640
2641     enable local_aligned_8 local_aligned_16
2642
2643     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2644     check_asm ibm_asm   '"add 0, 0, 0"'
2645     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2646     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2647
2648     # AltiVec flags: The FSF version of GCC differs from the Apple version
2649     if enabled altivec; then
2650         nogas=warn
2651         check_cflags -maltivec -mabi=altivec &&
2652         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2653         check_cflags -faltivec
2654
2655         # check if our compiler supports Motorola AltiVec C API
2656         check_cc <<EOF || disable altivec
2657 $inc_altivec_h
2658 int main(void) {
2659     vector signed int v1, v2, v3;
2660     v1 = vec_add(v2,v3);
2661     return 0;
2662 }
2663 EOF
2664
2665         # check if our compiler supports braces for vector declarations
2666         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2667 $inc_altivec_h
2668 int main (void) { (vector int) {1}; return 0; }
2669 EOF
2670     fi
2671
2672 elif enabled sparc; then
2673
2674     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2675         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2676
2677 elif enabled x86; then
2678
2679     enable local_aligned_8 local_aligned_16
2680
2681     # check whether EBP is available on x86
2682     # As 'i' is stored on the stack, this program will crash
2683     # if the base pointer is used to access it because the
2684     # base pointer is cleared in the inline assembly code.
2685     check_exec_crash <<EOF && enable ebp_available
2686     volatile int i=0;
2687     __asm__ volatile (
2688         "xorl %%ebp, %%ebp"
2689     ::: "%ebp");
2690     return i;
2691 EOF
2692
2693     # check whether EBX is available on x86
2694     check_asm ebx_available '""::"b"(0)' &&
2695         check_asm ebx_available '"":::"%ebx"'
2696
2697     # check whether xmm clobbers are supported
2698     check_asm xmm_clobbers '"":::"%xmm0"'
2699
2700     # check whether more than 10 operands are supported
2701     check_cc <<EOF && enable ten_operands
2702 int main(void) {
2703     int x=0;
2704     __asm__ volatile(
2705         ""
2706         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2707     );
2708     return 0;
2709 }
2710 EOF
2711
2712     # check whether binutils is new enough to compile SSSE3/MMX2
2713     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2714     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2715
2716     check_asm bswap '"bswap %%eax" ::: "%eax"'
2717
2718     if ! disabled_any asm mmx yasm; then
2719         if check_cmd $yasmexe --version; then
2720             enabled x86_64 && yasm_extra="-m amd64"
2721             yasm_debug="-g dwarf2"
2722         elif check_cmd nasm -v; then
2723             yasmexe=nasm
2724             yasm_debug="-g -F dwarf"
2725             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2726         fi
2727
2728         YASMFLAGS="-f $objformat $yasm_extra"
2729         enabled pic               && append YASMFLAGS "-DPIC"
2730         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2731         case "$objformat" in
2732             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2733         esac
2734
2735         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2736             die "yasm not found, use --disable-yasm for a crippled build"
2737         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2738     fi
2739
2740     case "$cpu" in
2741         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2742             disable fast_clz
2743         ;;
2744     esac
2745
2746 fi
2747
2748 if enabled asm; then
2749     as=${gas:=$as}
2750     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2751         $nogas "GNU assembler not found, install gas-preprocessor"
2752 fi
2753
2754 check_ldflags -Wl,--as-needed
2755
2756 if check_func dlopen; then
2757     ldl=
2758 elif check_func dlopen -ldl; then
2759     ldl=-ldl
2760 fi
2761
2762 if enabled network; then
2763     check_type "sys/types.h sys/socket.h" socklen_t
2764     check_type netdb.h "struct addrinfo"
2765     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2766     check_type netinet/in.h "struct sockaddr_in6"
2767     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2768     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2769     # Prefer arpa/inet.h over winsock2
2770     if check_header arpa/inet.h ; then
2771         check_func closesocket
2772     elif check_header winsock2.h ; then
2773         check_func_headers winsock2.h closesocket -lws2 && \
2774             network_extralibs="-lws2" || \
2775         { check_func_headers winsock2.h closesocket -lws2_32 && \
2776             network_extralibs="-lws2_32"; }
2777         check_type ws2tcpip.h socklen_t
2778         check_type ws2tcpip.h "struct addrinfo"
2779         check_type ws2tcpip.h "struct ipv6_mreq"
2780         check_type ws2tcpip.h "struct sockaddr_in6"
2781         check_type ws2tcpip.h "struct sockaddr_storage"
2782         check_struct winsock2.h "struct sockaddr" sa_len
2783     else
2784         disable network
2785     fi
2786 fi
2787
2788 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2789 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2790
2791 check_func  fcntl
2792 check_func  fork
2793 check_func  getaddrinfo $network_extralibs
2794 check_func  gethrtime
2795 check_func  getrusage
2796 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2797 check_func  inet_aton $network_extralibs
2798 check_func  isatty
2799 check_func  localtime_r
2800 check_func  ${malloc_prefix}memalign            && enable memalign
2801 check_func  mkstemp
2802 check_func  mmap
2803 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2804 check_func  setrlimit
2805 check_func  strerror_r
2806 check_func  strtok_r
2807 check_func_headers conio.h kbhit
2808 check_func_headers io.h setmode
2809 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2810 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2811 check_func_headers windows.h GetProcessTimes
2812 check_func_headers windows.h MapViewOfFile
2813 check_func_headers windows.h VirtualAlloc
2814
2815 check_header dlfcn.h
2816 check_header dxva2api.h
2817 check_header libcrystalhd/libcrystalhd_if.h
2818 check_header malloc.h
2819 check_header poll.h
2820 check_header sys/mman.h
2821 check_header sys/resource.h
2822 check_header sys/select.h
2823 check_header termios.h
2824 check_header vdpau/vdpau.h
2825 check_header vdpau/vdpau_x11.h
2826 check_header X11/extensions/XvMClib.h
2827
2828 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2829
2830 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2831      enabled_any $need_memalign ; then
2832     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2833 fi
2834
2835 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2836 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2837
2838 # check for some common methods of building with pthread support
2839 # do this before the optional library checks as some of them require pthreads
2840 if ! disabled pthreads && ! enabled w32threads; then
2841     enable pthreads
2842     if check_func pthread_create; then
2843         :
2844     elif check_func pthread_create -pthread; then
2845         add_cflags -pthread
2846         add_extralibs -pthread
2847     elif check_func pthread_create -pthreads; then
2848         add_cflags -pthreads
2849         add_extralibs -pthreads
2850     elif check_func pthread_create -lpthreadGC2; then
2851         add_extralibs -lpthreadGC2
2852     elif ! check_lib pthread.h pthread_create -lpthread; then
2853         disable pthreads
2854     fi
2855 fi
2856
2857 for thread in $THREADS_LIST; do
2858     if enabled $thread; then
2859         test -n "$thread_type" &&
2860             die "ERROR: Only one thread type must be selected." ||
2861             thread_type="$thread"
2862     fi
2863 done
2864
2865 check_lib math.h sin -lm
2866 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2867
2868 check_mathfunc exp2
2869 check_mathfunc exp2f
2870 check_mathfunc llrint
2871 check_mathfunc llrintf
2872 check_mathfunc log2
2873 check_mathfunc log2f
2874 check_mathfunc lrint
2875 check_mathfunc lrintf
2876 check_mathfunc round
2877 check_mathfunc roundf
2878 check_mathfunc truncf
2879
2880 # these are off by default, so fail if requested and not available
2881 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2882 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2883 enabled libdirac   && require_pkg_config dirac                          \
2884     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2885     "dirac_decoder_init dirac_encoder_init"
2886 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2887 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2888 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2889 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2890 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2891 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2892 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2893 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2894 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2895 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2896 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2897 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2898 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2899 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2900 enabled libvpx     && {
2901     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2902                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2903     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2904                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2905 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2906                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2907                         die "ERROR: libx264 version must be >= 0.99."; }
2908 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2909 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2910 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2911
2912 # libdc1394 check
2913 if enabled libdc1394; then
2914     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2915         enable libdc1394_2; } ||
2916     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2917         enable libdc1394_1; } ||
2918     die "ERROR: No version of libdc1394 found "
2919 fi
2920
2921 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2922     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2923     enable sdl &&
2924     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2925 fi
2926
2927 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2928
2929 check_header linux/fb.h
2930 check_header linux/videodev.h
2931 check_header linux/videodev2.h
2932 check_header sys/videoio.h
2933
2934 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2935 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2936 # w32api 3.12 had it defined wrong
2937 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2938
2939 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2940 { check_header dev/bktr/ioctl_meteor.h &&
2941   check_header dev/bktr/ioctl_bt848.h; } ||
2942 { check_header machine/ioctl_meteor.h &&
2943   check_header machine/ioctl_bt848.h; } ||
2944 { check_header dev/video/meteor/ioctl_meteor.h &&
2945   check_header dev/video/bktr/ioctl_bt848.h; } ||
2946 check_header dev/ic/bt8xx.h
2947
2948 check_header sndio.h
2949 check_header sys/soundcard.h
2950 check_header soundcard.h
2951
2952 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2953
2954 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2955
2956 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2957
2958 enabled x11grab                         &&
2959 check_header X11/Xlib.h                 &&
2960 check_header X11/extensions/XShm.h      &&
2961 check_header X11/extensions/Xfixes.h    &&
2962 check_func XOpenDisplay -lX11           &&
2963 check_func XShmCreateImage -lX11 -lXext &&
2964 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2965
2966 if ! disabled vaapi; then
2967     check_lib va/va.h vaInitialize -lva && {
2968         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2969         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2970     } || disable vaapi
2971 fi
2972
2973 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2974 check_cpp_condition \
2975     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2976     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2977       disable vdpau; }
2978 fi
2979
2980 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2981
2982 # add some useful compiler flags if supported
2983 check_cflags -Wdeclaration-after-statement
2984 check_cflags -Wall
2985 check_cflags -Wno-parentheses
2986 check_cflags -Wno-switch
2987 check_cflags -Wdisabled-optimization
2988 check_cflags -Wpointer-arith
2989 check_cflags -Wredundant-decls
2990 check_cflags -Wno-pointer-sign
2991 check_cflags -Wcast-qual
2992 check_cflags -Wwrite-strings
2993 check_cflags -Wtype-limits
2994 check_cflags -Wundef
2995 check_cflags -Wmissing-prototypes
2996 enabled extra_warnings && check_cflags -Winline
2997
2998 # add some linker flags
2999 check_ldflags -Wl,--warn-common
3000 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
3001 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3002
3003 echo "X{};" > $TMPV
3004 if test_ldflags -Wl,--version-script,$TMPV; then
3005     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3006     check_cc <<EOF && enable symver_asm_label
3007 void ff_foo(void) __asm__ ("av_foo@VERSION");
3008 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3009 EOF
3010     check_cc <<EOF && enable symver_gnu_asm
3011 __asm__(".symver ff_foo,av_foo@VERSION");
3012 void ff_foo(void) {}
3013 EOF
3014 fi
3015
3016 if enabled small; then
3017     add_cflags $size_cflags
3018     optimizations="small"
3019 elif enabled optimizations; then
3020     add_cflags $speed_cflags
3021 else
3022     add_cflags $noopt_cflags
3023 fi
3024 check_cflags -fno-math-errno
3025 check_cflags -fno-signed-zeros
3026
3027 if enabled icc; then
3028     # Just warnings, no remarks
3029     check_cflags -w1
3030     # -wd: Disable following warnings
3031     # 144, 167, 556: -Wno-pointer-sign
3032     # 1292: attribute "foo" ignored
3033     # 10006: ignoring unknown option -fno-signed-zeros
3034     # 10148: ignoring unknown option -Wno-parentheses
3035     # 10156: ignoring option '-W'; no argument required
3036     check_cflags -wd144,167,556,1292,10006,10148,10156
3037     # 11030: Warning unknown option --as-needed
3038     # 10156: ignoring option '-export'; no argument required
3039     check_ldflags -wd10156,11030
3040     # Allow to compile with optimizations
3041     check_ldflags -march=$cpu
3042     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3043     enable ebp_available
3044     if enabled x86_32; then
3045         test ${icc_version%%.*} -ge 11 && \
3046             check_cflags -falign-stack=maintain-16-byte || \
3047             disable aligned_stack
3048     fi
3049 elif enabled ccc; then
3050     # disable some annoying warnings
3051     add_cflags -msg_disable cvtu32to64
3052     add_cflags -msg_disable embedcomment
3053     add_cflags -msg_disable needconstext
3054     add_cflags -msg_disable nomainieee
3055     add_cflags -msg_disable ptrmismatch1
3056     add_cflags -msg_disable unreachcode
3057 elif enabled gcc; then
3058     check_cflags -fno-tree-vectorize
3059     check_cflags -Werror=implicit-function-declaration
3060     check_cflags -Werror=missing-prototypes
3061 elif enabled llvm_gcc; then
3062     check_cflags -mllvm -stack-alignment=16
3063 elif enabled clang; then
3064     check_cflags -mllvm -stack-alignment=16
3065     check_cflags -Qunused-arguments
3066 elif enabled armcc; then
3067     # 2523: use of inline assembler is deprecated
3068     add_cflags -W${armcc_opt},--diag_suppress=2523
3069     add_cflags -W${armcc_opt},--diag_suppress=1207
3070     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3071     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3072 elif enabled tms470; then
3073     add_cflags -pds=824 -pds=837
3074 elif enabled pathscale; then
3075     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3076 fi
3077
3078 enabled_any $THREADS_LIST      && enable threads
3079
3080 check_deps $CONFIG_LIST       \
3081            $CONFIG_EXTRA      \
3082            $HAVE_LIST         \
3083            $DECODER_LIST      \
3084            $ENCODER_LIST      \
3085            $HWACCEL_LIST      \
3086            $PARSER_LIST       \
3087            $BSF_LIST          \
3088            $DEMUXER_LIST      \
3089            $MUXER_LIST        \
3090            $FILTER_LIST       \
3091            $INDEV_LIST        \
3092            $OUTDEV_LIST       \
3093            $PROTOCOL_LIST     \
3094            $ACODEC_TESTS      \
3095            $VCODEC_TESTS      \
3096            $LAVF_TESTS        \
3097            $LAVFI_TESTS       \
3098            $SEEK_TESTS        \
3099
3100 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3101
3102 echo "install prefix            $prefix"
3103 echo "source path               $source_path"
3104 echo "C compiler                $cc"
3105 echo "ARCH                      $arch ($cpu)"
3106 if test "$build_suffix" != ""; then
3107     echo "build suffix              $build_suffix"
3108 fi
3109 if test "$extra_version" != ""; then
3110     echo "version string suffix     $extra_version"
3111 fi
3112 echo "big-endian                ${bigendian-no}"
3113 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3114 if enabled x86; then
3115     echo "yasm                      ${yasm-no}"
3116     echo "MMX enabled               ${mmx-no}"
3117     echo "MMX2 enabled              ${mmx2-no}"
3118     echo "3DNow! enabled            ${amd3dnow-no}"
3119     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3120     echo "SSE enabled               ${sse-no}"
3121     echo "SSSE3 enabled             ${ssse3-no}"
3122     echo "CMOV enabled              ${cmov-no}"
3123     echo "CMOV is fast              ${fast_cmov-no}"
3124     echo "EBX available             ${ebx_available-no}"
3125     echo "EBP available             ${ebp_available-no}"
3126     echo "10 operands supported     ${ten_operands-no}"
3127 fi
3128 if enabled arm; then
3129     echo "ARMv5TE enabled           ${armv5te-no}"
3130     echo "ARMv6 enabled             ${armv6-no}"
3131     echo "ARMv6T2 enabled           ${armv6t2-no}"
3132     echo "ARM VFP enabled           ${armvfp-no}"
3133     echo "IWMMXT enabled            ${iwmmxt-no}"
3134     echo "NEON enabled              ${neon-no}"
3135 fi
3136 if enabled mips; then
3137     echo "MMI enabled               ${mmi-no}"
3138 fi
3139 if enabled ppc; then
3140     echo "AltiVec enabled           ${altivec-no}"
3141     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3142     echo "dcbzl available           ${dcbzl-no}"
3143 fi
3144 if enabled sparc; then
3145     echo "VIS enabled               ${vis-no}"
3146 fi
3147 echo "debug symbols             ${debug-no}"
3148 echo "strip symbols             ${stripping-no}"
3149 echo "optimizations             ${optimizations-no}"
3150 echo "static                    ${static-no}"
3151 echo "shared                    ${shared-no}"
3152 echo "postprocessing support    ${postproc-no}"
3153 echo "new filter support        ${avfilter-no}"
3154 echo "network support           ${network-no}"
3155 echo "threading support         ${thread_type-no}"
3156 echo "SDL support               ${sdl-no}"
3157 echo "Sun medialib support      ${mlib-no}"
3158 echo "AVISynth enabled          ${avisynth-no}"
3159 echo "frei0r enabled            ${frei0r-no}"
3160 echo "libdc1394 support         ${libdc1394-no}"
3161 echo "libdirac enabled          ${libdirac-no}"
3162 echo "libfaac enabled           ${libfaac-no}"
3163 echo "libgsm enabled            ${libgsm-no}"
3164 echo "libmp3lame enabled        ${libmp3lame-no}"
3165 echo "libnut enabled            ${libnut-no}"
3166 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3167 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3168 echo "libopencv support         ${libopencv-no}"
3169 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3170 echo "librtmp enabled           ${librtmp-no}"
3171 echo "libschroedinger enabled   ${libschroedinger-no}"
3172 echo "libspeex enabled          ${libspeex-no}"
3173 echo "libtheora enabled         ${libtheora-no}"
3174 echo "libva enabled             ${vaapi-no}"
3175 echo "libvorbis enabled         ${libvorbis-no}"
3176 echo "libvpx enabled            ${libvpx-no}"
3177 echo "libx264 enabled           ${libx264-no}"
3178 echo "libxavs enabled           ${libxavs-no}"
3179 echo "libxvid enabled           ${libxvid-no}"
3180 echo "zlib enabled              ${zlib-no}"
3181 echo "bzlib enabled             ${bzlib-no}"
3182 echo
3183
3184 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3185     echo "Enabled ${type}s:"
3186     eval list=\$$(toupper $type)_LIST
3187     print_enabled '_*' $list | sort | pr -r -3 -t
3188     echo
3189 done
3190
3191 license="LGPL version 2.1 or later"
3192 if enabled nonfree; then
3193     license="nonfree and unredistributable"
3194 elif enabled gplv3; then
3195     license="GPL version 3 or later"
3196 elif enabled lgplv3; then
3197     license="LGPL version 3 or later"
3198 elif enabled gpl; then
3199     license="GPL version 2 or later"
3200 fi
3201
3202 echo "License: $license"
3203
3204 echo "Creating config.mak and config.h..."
3205
3206 # build tree in object directory if source path is different from current one
3207 if enabled source_path_used; then
3208     DIRS="
3209         doc
3210         libavcodec
3211         libavcodec/$arch
3212         libavdevice
3213         libavfilter
3214         libavfilter/$arch
3215         libavfilter/libmpcodecs
3216         libavfilter/libmpcodecs/libvo
3217         libavformat
3218         libavutil
3219         libavutil/$arch
3220         libpostproc
3221         libswscale
3222         libswscale/$arch
3223         tests
3224         tools
3225     "
3226     FILES="
3227         Makefile
3228         common.mak
3229         subdir.mak
3230         doc/texi2pod.pl
3231         libavcodec/Makefile
3232         libavcodec/${arch}/Makefile
3233         libavdevice/Makefile
3234         libavfilter/Makefile
3235         libavfilter/${arch}/Makefile
3236         libavformat/Makefile
3237         libavutil/Makefile
3238         libpostproc/Makefile
3239         libswscale/Makefile
3240     "
3241     map 'mkdir -p $v' $DIRS;
3242     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3243 fi
3244
3245 enabled stripping || strip="echo skipping strip"
3246
3247 config_files="$TMPH config.mak"
3248
3249 cat > config.mak <<EOF
3250 # Automatically generated by configure - do not modify!
3251 ifndef FFMPEG_CONFIG_MAK
3252 FFMPEG_CONFIG_MAK=1
3253 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3254 prefix=$prefix
3255 LIBDIR=\$(DESTDIR)$libdir
3256 SHLIBDIR=\$(DESTDIR)$shlibdir
3257 INCDIR=\$(DESTDIR)$incdir
3258 BINDIR=\$(DESTDIR)$bindir
3259 DATADIR=\$(DESTDIR)$datadir
3260 MANDIR=\$(DESTDIR)$mandir
3261 SRC_PATH="$source_path"
3262 SRC_PATH_BARE=$source_path
3263 BUILD_ROOT="$PWD"
3264 CC_IDENT=$cc_ident
3265 ARCH=$arch
3266 CC=$cc
3267 AS=$as
3268 LD=$ld
3269 DEPCC=$dep_cc
3270 YASM=$yasmexe
3271 YASMDEP=$yasmexe
3272 AR=$ar
3273 RANLIB=$ranlib
3274 CP=cp -p
3275 LN_S=$ln_s
3276 STRIP=$strip
3277 CPPFLAGS=$CPPFLAGS
3278 CFLAGS=$CFLAGS
3279 ASFLAGS=$ASFLAGS
3280 CC_O=$CC_O
3281 LDFLAGS=$LDFLAGS
3282 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3283 SHFLAGS=$SHFLAGS
3284 YASMFLAGS=$YASMFLAGS
3285 BUILDSUF=$build_suffix
3286 FULLNAME=$FULLNAME
3287 LIBPREF=$LIBPREF
3288 LIBSUF=$LIBSUF
3289 LIBNAME=$LIBNAME
3290 SLIBPREF=$SLIBPREF
3291 SLIBSUF=$SLIBSUF
3292 EXESUF=$EXESUF
3293 EXTRA_VERSION=$extra_version
3294 DEPFLAGS=$DEPFLAGS
3295 CCDEP=$CCDEP
3296 ASDEP=$ASDEP
3297 CC_DEPFLAGS=$CC_DEPFLAGS
3298 AS_DEPFLAGS=$AS_DEPFLAGS
3299 HOSTCC=$host_cc
3300 HOSTCFLAGS=$host_cflags
3301 HOSTEXESUF=$HOSTEXESUF
3302 HOSTLDFLAGS=$host_ldflags
3303 HOSTLIBS=$host_libs
3304 TARGET_EXEC=$target_exec
3305 TARGET_PATH=$target_path
3306 SDL_LIBS=$sdl_libs
3307 SDL_CFLAGS=$sdl_cflags
3308 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3309 EXTRALIBS=$extralibs
3310 INSTALL=install
3311 LIBTARGET=${LIBTARGET}
3312 SLIBNAME=${SLIBNAME}
3313 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3314 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3315 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3316 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3317 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3318 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3319 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3320 EOF
3321
3322 get_version(){
3323     name=$1
3324     file=$source_path/$2
3325     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3326     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3327     lcname=$(tolower $name)
3328     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3329     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3330 }
3331
3332 get_version LIBSWSCALE  libswscale/swscale.h
3333 get_version LIBPOSTPROC libpostproc/postprocess.h
3334 get_version LIBAVCODEC  libavcodec/version.h
3335 get_version LIBAVDEVICE libavdevice/avdevice.h
3336 get_version LIBAVFORMAT libavformat/version.h
3337 get_version LIBAVUTIL   libavutil/avutil.h
3338 get_version LIBAVFILTER libavfilter/avfilter.h
3339
3340 cat > $TMPH <<EOF
3341 /* Automatically generated by configure - do not modify! */
3342 #ifndef FFMPEG_CONFIG_H
3343 #define FFMPEG_CONFIG_H
3344 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3345 #define FFMPEG_LICENSE "$(c_escape $license)"
3346 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3347 #define CC_TYPE "$cc_type"
3348 #define CC_VERSION $cc_version
3349 #define restrict $_restrict
3350 #define EXTERN_PREFIX "${extern_prefix}"
3351 #define EXTERN_ASM ${extern_prefix}
3352 #define SLIBSUF "$SLIBSUF"
3353 EOF
3354
3355 test -n "$malloc_prefix" &&
3356     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3357
3358 if enabled small || disabled optimizations; then
3359     echo "#undef  av_always_inline"  >> $TMPH
3360     if enabled small; then
3361         echo "#define av_always_inline inline"  >> $TMPH
3362     else
3363         echo "#define av_always_inline av_unused"  >> $TMPH
3364     fi
3365 fi
3366
3367 if enabled yasm; then
3368     append config_files $TMPASM
3369     printf '' >$TMPASM
3370 fi
3371
3372 print_config ARCH_   "$config_files" $ARCH_LIST
3373 print_config HAVE_   "$config_files" $HAVE_LIST
3374 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3375                                      $CONFIG_EXTRA      \
3376                                      $DECODER_LIST      \
3377                                      $ENCODER_LIST      \
3378                                      $HWACCEL_LIST      \
3379                                      $PARSER_LIST       \
3380                                      $BSF_LIST          \
3381                                      $DEMUXER_LIST      \
3382                                      $MUXER_LIST        \
3383                                      $FILTER_LIST       \
3384                                      $PROTOCOL_LIST     \
3385                                      $INDEV_LIST        \
3386                                      $OUTDEV_LIST       \
3387
3388 cat >>config.mak <<EOF
3389 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3390 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3391 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3392 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3393 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3394 EOF
3395
3396 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3397 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3398
3399 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3400 cp_if_changed $TMPH config.h
3401 touch .config
3402
3403 enabled yasm && cp_if_changed $TMPASM config.asm
3404
3405 cat > $TMPH <<EOF
3406 /* Generated by ffconf */
3407 #ifndef AVUTIL_AVCONFIG_H
3408 #define AVUTIL_AVCONFIG_H
3409 EOF
3410
3411 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3412
3413 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3414
3415 cp_if_changed $TMPH libavutil/avconfig.h
3416
3417 test -n "$WARNINGS" && printf "\n$WARNINGS"
3418
3419 # build pkg-config files
3420
3421 pkgconfig_generate(){
3422 name=$1
3423 shortname=${name#lib}${build_suffix}
3424 comment=$2
3425 version=$3
3426 libs=$4
3427 requires=$5
3428 enabled ${name#lib} || return 0
3429 cat <<EOF > $name/$name.pc
3430 prefix=$prefix
3431 exec_prefix=\${prefix}
3432 libdir=$libdir
3433 includedir=$incdir
3434
3435 Name: $name
3436 Description: $comment
3437 Version: $version
3438 Requires: $(enabled shared || echo $requires)
3439 Requires.private: $(enabled shared && echo $requires)
3440 Conflicts:
3441 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3442 Libs.private: $(enabled shared && echo $libs)
3443 Cflags: -I\${includedir}
3444 EOF
3445 cat <<EOF > $name/$name-uninstalled.pc
3446 prefix=
3447 exec_prefix=
3448 libdir=\${pcfiledir}
3449 includedir=${source_path}
3450
3451 Name: $name
3452 Description: $comment
3453 Version: $version
3454 Requires: $requires
3455 Conflicts:
3456 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3457 Cflags: -I\${includedir}
3458 EOF
3459 }
3460
3461 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3462 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3463 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3464 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3465 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3466 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3467 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"