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.err]
  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   --enable-avfilter        video filter support [no]
  93   --enable-avfilter-lavf   video filters dependent on avformat [no]
  94   --enable-beosthreads     use BeOS threads [no]
  95   --enable-os2threads      use OS/2 threads [no]
  96   --enable-pthreads        use pthreads [no]
  97   --enable-w32threads      use Win32 threads [no]
  98   --enable-x11grab         enable X11 grabbing [no]
  99   --disable-network        disable network support [no]
 100   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
 101   --enable-gray            enable full grayscale support (slower color)
 102   --disable-swscale-alpha  disable alpha channel support in swscale
 103   --disable-fastdiv        disable table-based division
 104   --enable-small           optimize for size instead of speed
 105   --disable-aandct         disable AAN DCT code
 106   --disable-dct            disable DCT code
 107   --disable-fft            disable FFT code
 108   --disable-golomb         disable Golomb code
 109   --disable-lpc            disable LPC code
 110   --disable-mdct           disable MDCT code
 111   --disable-rdft           disable RDFT code
 112   --disable-vaapi          disable VAAPI code
 113   --disable-vdpau          disable VDPAU code
 114   --disable-dxva2          disable DXVA2 code
 115   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 116   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 117   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 118   --enable-beos-netserver  enable BeOS netserver
 119   --disable-everything     disable all components listed below
 120   --disable-encoder=NAME   disable encoder NAME
 121   --enable-encoder=NAME    enable encoder NAME
 122   --disable-encoders       disable all encoders
 123   --disable-decoder=NAME   disable decoder NAME
 124   --enable-decoder=NAME    enable decoder NAME
 125   --disable-decoders       disable all decoders
 126   --disable-hwaccel=NAME   disable hwaccel NAME
 127   --enable-hwaccel=NAME    enable hwaccel NAME
 128   --disable-hwaccels       disable all hwaccels
 129   --disable-muxer=NAME     disable muxer NAME
 130   --enable-muxer=NAME      enable muxer NAME
 131   --disable-muxers         disable all muxers
 132   --disable-demuxer=NAME   disable demuxer NAME
 133   --enable-demuxer=NAME    enable demuxer NAME
 134   --disable-demuxers       disable all demuxers
 135   --enable-parser=NAME     enable parser NAME
 136   --disable-parser=NAME    disable parser NAME
 137   --disable-parsers        disable all parsers
 138   --enable-bsf=NAME        enable bitstream filter NAME
 139   --disable-bsf=NAME       disable bitstream filter NAME
 140   --disable-bsfs           disable all bitstream filters
 141   --enable-protocol=NAME   enable protocol NAME
 142   --disable-protocol=NAME  disable protocol NAME
 143   --disable-protocols      disable all protocols
 144   --disable-indev=NAME     disable input device NAME
 145   --disable-outdev=NAME    disable output device NAME
 146   --disable-indevs         disable input devices
 147   --disable-outdevs        disable output devices
 148   --disable-devices        disable all devices
 149   --enable-filter=NAME     enable filter NAME
 150   --disable-filter=NAME    disable filter NAME
 151   --disable-filters        disable all filters
 152   --list-decoders          show all available decoders
 153   --list-encoders          show all available encoders
 154   --list-hwaccels          show all available hardware accelerators
 155   --list-muxers            show all available muxers
 156   --list-demuxers          show all available demuxers
 157   --list-parsers           show all available parsers
 158   --list-protocols         show all available protocols
 159   --list-bsfs              show all available bitstream filters
 160   --list-indevs            show all available input devices
 161   --list-outdevs           show all available output devices
 162   --list-filters           show all available filters
 163
 164 External library support:
 165   --enable-avisynth        enable reading of AVISynth script files [no]
 166   --enable-bzlib           enable bzlib [autodetect]
 167   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 168   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfaad         enable FAAD support via libfaad [no]
 174   --enable-libfaadbin      open libfaad.so.0 at runtime [no]
 175   --enable-libgsm          enable GSM support via libgsm [no]
 176   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 177   --enable-libnut          enable NUT (de)muxing via libnut,
 178                            native (de)muxer exists [no]
 179   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 181   --enable-libspeex        enable Speex decoding via libspeex [no]
 182   --enable-libtheora       enable Theora encoding via libtheora [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libx264         enable H.264 encoding via x264 [no]
 186   --enable-libxvid         enable Xvid encoding via xvidcore,
 187                            native MPEG-4/Xvid encoder exists [no]
 188   --enable-mlib            enable Sun medialib [no]
 189   --enable-zlib            enable zlib [autodetect]
 190
 191 Advanced options (experts only):
 192   --source-path=PATH       path to source code [$source_path]
 193   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 194   --enable-cross-compile   assume a cross-compiler is used
 195   --sysroot=PATH           root of cross-build tree
 196   --sysinclude=PATH        location of cross-build system headers
 197   --target-os=OS           compiler targets OS [$target_os]
 198   --target-exec=CMD        command to run executables on target
 199   --target-path=DIR        path to view of build directory on target
 200   --nm=NM                  use nm tool
 201   --as=AS                  use assembler AS [$as_default]
 202   --cc=CC                  use C compiler CC [$cc_default]
 203   --ld=LD                  use linker LD
 204   --host-cc=HOSTCC         use host C compiler HOSTCC
 205   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 206   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 207   --host-libs=HLIBS        use libs HLIBS when linking for host
 208   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 209   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 210   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 211   --extra-version=STRING   version string suffix []
 212   --build-suffix=SUFFIX    library name suffix []
 213   --arch=ARCH              select architecture [$arch]
 214   --cpu=CPU                select the minimum required CPU (affects
 215                            instruction selection, may crash on older CPUs)
 216   --enable-powerpc-perf    enable performance report on PPC
 217                            (requires enabling PMC)
 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-armv5te        disable armv5te optimizations
 227   --disable-armv6          disable armv6 optimizations
 228   --disable-armv6t2        disable armv6t2 optimizations
 229   --disable-armvfp         disable ARM VFP optimizations
 230   --disable-iwmmxt         disable iwmmxt optimizations
 231   --disable-mmi            disable MMI optimizations
 232   --disable-neon           disable neon optimizations
 233   --disable-vis            disable VIS optimizations
 234   --disable-yasm           disable use of yasm assembler
 235   --enable-pic             build position-independent code
 236   --malloc-prefix=PFX      prefix malloc and related names with PFX
 237   --enable-sram            allow use of on-chip SRAM
 238
 239 Developer options (useful when working on FFmpeg itself):
 240   --disable-debug          disable debugging symbols
 241   --enable-debug=LEVEL     set the debug level [$debuglevel]
 242   --enable-gprof           enable profiling with gprof [$gprof]
 243   --disable-optimizations  disable compiler optimizations
 244   --enable-extra-warnings  enable more compiler warnings
 245   --disable-stripping      disable stripping of executables and shared libraries
 246   --samples=PATH           location of test samples for FATE
 247
 248 NOTE: Object files are built at the place where configure is launched.
 249 EOF
 250   exit 0
 251 }
 252
 253 log(){
 254     echo "$@" >> $logfile
 255 }
 256
 257 log_file(){
 258     log BEGIN $1
 259     pr -n -t $1 >> $logfile
 260     log END $1
 261 }
 262
 263 echolog(){
 264     log "$@"
 265     echo "$@"
 266 }
 267
 268 die(){
 269     echolog "$@"
 270     cat <<EOF
 271
 272 If you think configure made a mistake, make sure you are using the latest
 273 version from SVN.  If the latest version fails, report the problem to the
 274 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 275 EOF
 276     if disabled logging; then
 277         cat <<EOF
 278 Rerun configure with logging enabled (do not use --disable-logging), and
 279 include the log this produces with your report.
 280 EOF
 281     else
 282 cat <<EOF
 283 Include the log file "$logfile" produced by configure as this will help
 284 solving the problem.
 285 EOF
 286     fi
 287     exit 1
 288 }
 289
 290 # Avoid locale weirdness, besides we really just want to translate ASCII.
 291 toupper(){
 292     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 293 }
 294
 295 tolower(){
 296     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 297 }
 298
 299 c_escape(){
 300     echo "$*" | sed 's/["\\]/\\\0/g'
 301 }
 302
 303 sh_quote(){
 304     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 305     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
 306     echo "$v"
 307 }
 308
 309 filter(){
 310     pat=$1
 311     shift
 312     for v; do
 313         eval "case $v in $pat) echo $v ;; esac"
 314     done
 315 }
 316
 317 map(){
 318     m=$1
 319     shift
 320     for v; do eval $m; done
 321 }
 322
 323 set_all(){
 324     value=$1
 325     shift
 326     for var in $*; do
 327         eval $var=$value
 328     done
 329 }
 330
 331 set_weak(){
 332     value=$1
 333     shift
 334     for var; do
 335         eval : \${$var:=$value}
 336     done
 337 }
 338
 339 pushvar(){
 340     for var in $*; do
 341         eval level=\${${var}_level:=0}
 342         eval ${var}_${level}="\$$var"
 343         eval ${var}_level=$(($level+1))
 344     done
 345 }
 346
 347 popvar(){
 348     for var in $*; do
 349         eval level=\${${var}_level:-0}
 350         test $level = 0 && continue
 351         eval level=$(($level-1))
 352         eval $var="\${${var}_${level}}"
 353         eval ${var}_level=$level
 354         eval unset ${var}_${level}
 355     done
 356 }
 357
 358 enable(){
 359     set_all yes $*
 360 }
 361
 362 disable(){
 363     set_all no $*
 364 }
 365
 366 enable_weak(){
 367     set_weak yes $*
 368 }
 369
 370 disable_weak(){
 371     set_weak no $*
 372 }
 373
 374 enable_safe(){
 375     for var; do
 376         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 377     done
 378 }
 379
 380 disable_safe(){
 381     for var; do
 382         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 383     done
 384 }
 385
 386 do_enable_deep(){
 387     for var; do
 388         enabled $var && continue
 389         eval sel="\$${var}_select"
 390         eval sgs="\$${var}_suggest"
 391         pushvar var sgs
 392         enable_deep $sel
 393         popvar sgs
 394         enable_deep_weak $sgs
 395         popvar var
 396     done
 397 }
 398
 399 enable_deep(){
 400     do_enable_deep $*
 401     enable $*
 402 }
 403
 404 enable_deep_weak(){
 405     do_enable_deep $*
 406     enable_weak $*
 407 }
 408
 409 enabled(){
 410     test "${1#!}" = "$1" && op== || op=!=
 411     eval test "x\$${1#!}" $op "xyes"
 412 }
 413
 414 disabled(){
 415     test "${1#!}" = "$1" && op== || op=!=
 416     eval test "x\$${1#!}" $op "xno"
 417 }
 418
 419 enabled_all(){
 420     for opt; do
 421         enabled $opt || return 1
 422     done
 423 }
 424
 425 disabled_all(){
 426     for opt; do
 427         disabled $opt || return 1
 428     done
 429 }
 430
 431 enabled_any(){
 432     for opt; do
 433         enabled $opt && return 0
 434     done
 435 }
 436
 437 disabled_any(){
 438     for opt; do
 439         disabled $opt && return 0
 440     done
 441     return 1
 442 }
 443
 444 set_default(){
 445     for opt; do
 446         eval : \${$opt:=\$${opt}_default}
 447     done
 448 }
 449
 450 is_in(){
 451     value=$1
 452     shift
 453     for var in $*; do
 454         [ $var = $value ] && return 0
 455     done
 456     return 1
 457 }
 458
 459 check_deps(){
 460     for cfg; do
 461         cfg="${cfg#!}"
 462         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 463         disabled ${cfg}_checking && continue
 464         enable ${cfg}_checking
 465
 466         eval dep_all="\$${cfg}_deps"
 467         eval dep_any="\$${cfg}_deps_any"
 468         eval dep_sel="\$${cfg}_select"
 469         eval dep_sgs="\$${cfg}_suggest"
 470         eval dep_ifa="\$${cfg}_if"
 471         eval dep_ifn="\$${cfg}_if_any"
 472
 473         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 474         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 475         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 476
 477         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 478         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 479         enabled_all  $dep_all || disable $cfg
 480         enabled_any  $dep_any || disable $cfg
 481         disabled_any $dep_sel && disable $cfg
 482
 483         if enabled $cfg; then
 484             eval dep_extralibs="\$${cfg}_extralibs"
 485             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 486             enable_deep $dep_sel
 487             enable_deep_weak $dep_sgs
 488         fi
 489
 490         disable ${cfg}_checking
 491     done
 492 }
 493
 494 print_config(){
 495     pfx=$1
 496     header=$2
 497     makefile=$3
 498     shift 3
 499     for cfg; do
 500         ucname="$(toupper $cfg)"
 501         if enabled $cfg; then
 502             echo "#define ${pfx}${ucname} 1" >> $header
 503             echo "${pfx}${ucname}=yes" >> $makefile
 504         else
 505             echo "#define ${pfx}${ucname} 0" >> $header
 506             echo "!${pfx}${ucname}=yes" >> $makefile
 507         fi
 508     done
 509 }
 510
 511 flags_saved(){
 512     (: ${SAVE_CFLAGS?}) 2> /dev/null
 513 }
 514
 515 save_flags(){
 516     flags_saved && return
 517     SAVE_CFLAGS="$CFLAGS"
 518     SAVE_LDFLAGS="$LDFLAGS"
 519     SAVE_extralibs="$extralibs"
 520 }
 521
 522 restore_flags(){
 523     flags_saved || return
 524     CFLAGS="$SAVE_CFLAGS"
 525     LDFLAGS="$SAVE_LDFLAGS"
 526     extralibs="$SAVE_extralibs"
 527     unset SAVE_CFLAGS
 528     unset SAVE_LDFLAGS
 529     unset SAVE_extralibs
 530 }
 531
 532 temp_cflags(){
 533     save_flags
 534     CFLAGS="$CFLAGS $*"
 535 }
 536
 537 temp_ldflags(){
 538     save_flags
 539     LDFLAGS="$LDFLAGS $*"
 540 }
 541
 542 temp_extralibs(){
 543     save_flags
 544     extralibs="$extralibs $*"
 545 }
 546
 547 append(){
 548     var=$1
 549     shift
 550     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 551     eval "$var=\"\$$var $*\""
 552 }
 553
 554 add_cppflags(){
 555     append CPPFLAGS $($filter_cppflags "$@")
 556 }
 557
 558 add_cflags(){
 559     append CFLAGS $($filter_cflags "$@")
 560 }
 561
 562 add_asflags(){
 563     append ASFLAGS $($filter_asflags "$@")
 564 }
 565
 566 add_ldflags(){
 567     append LDFLAGS "$@"
 568 }
 569
 570 add_extralibs(){
 571     append extralibs "$@"
 572 }
 573
 574 check_cmd(){
 575     log "$@"
 576     "$@" >> $logfile 2>&1
 577 }
 578
 579 check_cc(){
 580     log check_cc "$@"
 581     cat > $TMPC
 582     log_file $TMPC
 583     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 584 }
 585
 586 check_cpp(){
 587     log check_cpp "$@"
 588     cat > $TMPC
 589     log_file $TMPC
 590     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 591 }
 592
 593 check_as(){
 594     log check_as "$@"
 595     cat > $TMPC
 596     log_file $TMPC
 597     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 598 }
 599
 600 check_asm(){
 601     log check_asm "$@"
 602     name="$1"
 603     code="$2"
 604     shift 2
 605     disable $name
 606     check_as "$@" <<EOF && enable $name
 607 void foo(void){ __asm__ volatile($code); }
 608 EOF
 609 }
 610
 611 check_yasm(){
 612     log check_yasm "$@"
 613     echo "$1" > $TMPS
 614     log_file $TMPS
 615     shift 1
 616     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 617 }
 618
 619 check_ld(){
 620     log check_ld "$@"
 621     flags=''
 622     libs=''
 623     for f; do
 624         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 625     done
 626     check_cc $($filter_cflags $flags) || return
 627     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 628 }
 629
 630 check_cppflags(){
 631     log check_cppflags "$@"
 632     set -- $($filter_cppflags "$@")
 633     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 634 int x;
 635 EOF
 636 }
 637
 638 check_cflags(){
 639     log check_cflags "$@"
 640     set -- $($filter_cflags "$@")
 641     check_cc "$@" <<EOF && append CFLAGS "$@"
 642 int x;
 643 EOF
 644 }
 645
 646 test_ldflags(){
 647     log test_ldflags "$@"
 648     check_ld "$@" <<EOF
 649 int main(void){ return 0; }
 650 EOF
 651 }
 652
 653 check_ldflags(){
 654     log check_ldflags "$@"
 655     test_ldflags "$@" && add_ldflags "$@"
 656 }
 657
 658 check_header(){
 659     log check_header "$@"
 660     header=$1
 661     shift
 662     disable_safe $header
 663     check_cpp "$@" <<EOF && enable_safe $header
 664 #include <$header>
 665 int x;
 666 EOF
 667 }
 668
 669 check_func(){
 670     log check_func "$@"
 671     func=$1
 672     shift
 673     disable $func
 674     check_ld "$@" <<EOF && enable $func
 675 extern int $func();
 676 int main(void){ $func(); }
 677 EOF
 678 }
 679
 680 check_mathfunc(){
 681     log check_mathfunc "$@"
 682     func=$1
 683     shift
 684     disable $func
 685     check_ld "$@" <<EOF && enable $func
 686 #include <math.h>
 687 float foo(float f) { return $func(f); }
 688 int main(void){ return 0; }
 689 EOF
 690 }
 691
 692 check_func_headers(){
 693     log check_func_headers "$@"
 694     headers=$1
 695     func=$2
 696     shift 2
 697     disable $func
 698     incs=""
 699     for hdr in $headers; do
 700         incs="$incs
 701 #include <$hdr>"
 702     done
 703     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 704 $incs
 705 int main(int argc, char **argv){
 706     return (long) $func;
 707 }
 708 EOF
 709 }
 710
 711 check_cpp_condition(){
 712     log check_cpp_condition "$@"
 713     header=$1
 714     condition=$2
 715     shift 2
 716     check_cpp $($filter_cppflags "$@") <<EOF
 717 #include <$header>
 718 #if !($condition)
 719 #error "unsatisfied condition: $condition"
 720 #endif
 721 EOF
 722 }
 723
 724 check_lib(){
 725     log check_lib "$@"
 726     header="$1"
 727     func="$2"
 728     shift 2
 729     temp_extralibs "$@"
 730     check_header $header && check_func $func && add_extralibs "$@"
 731     err=$?
 732     restore_flags
 733     return $err
 734 }
 735
 736 check_lib2(){
 737     log check_lib2 "$@"
 738     headers="$1"
 739     func="$2"
 740     shift 2
 741     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 742 }
 743
 744 check_exec(){
 745     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 746 }
 747
 748 check_exec_crash(){
 749     code=$(cat)
 750
 751     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 752     # are safe but may not be available everywhere.  Thus we use
 753     # raise(SIGTERM) instead.  The check is run in a subshell so we
 754     # can redirect the "Terminated" message from the shell.  SIGBUS
 755     # is not defined by standard C so it is used conditionally.
 756
 757     (check_exec "$@") >> $logfile 2>&1 <<EOF
 758 #include <signal.h>
 759 static void sighandler(int sig){
 760     raise(SIGTERM);
 761 }
 762 int main(void){
 763     signal(SIGILL, sighandler);
 764     signal(SIGFPE, sighandler);
 765     signal(SIGSEGV, sighandler);
 766 #ifdef SIGBUS
 767     signal(SIGBUS, sighandler);
 768 #endif
 769     { $code }
 770 }
 771 EOF
 772 }
 773
 774 check_type(){
 775     log check_type "$@"
 776     headers=$1
 777     type=$2
 778     shift 2
 779     disable_safe "$type"
 780     incs=""
 781     for hdr in $headers; do
 782         incs="$incs
 783 #include <$hdr>"
 784     done
 785     check_cc "$@" <<EOF && enable_safe "$type"
 786 $incs
 787 $type v;
 788 EOF
 789 }
 790
 791 check_struct(){
 792     log check_type "$@"
 793     headers=$1
 794     struct=$2
 795     member=$3
 796     shift 3
 797     disable_safe "${struct}_${member}"
 798     incs=""
 799     for hdr in $headers; do
 800         incs="$incs
 801 #include <$hdr>"
 802     done
 803     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 804 $incs
 805 const void *p = &(($struct *)0)->$member;
 806 EOF
 807 }
 808
 809 require(){
 810     name="$1"
 811     header="$2"
 812     func="$3"
 813     shift 3
 814     check_lib $header $func "$@" || die "ERROR: $name not found"
 815 }
 816
 817 require2(){
 818     name="$1"
 819     headers="$2"
 820     func="$3"
 821     shift 3
 822     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 823 }
 824
 825 check_foo_config(){
 826     cfg=$1
 827     pkg=$2
 828     header=$3
 829     func=$4
 830     shift 4
 831     disable $cfg
 832     check_cmd ${pkg}-config --version
 833     err=$?
 834     if test "$err" = 0; then
 835         temp_cflags $(${pkg}-config --cflags)
 836         temp_extralibs $(${pkg}-config --libs)
 837         check_lib "$@" $header $func && enable $cfg
 838     fi
 839     return $err
 840 }
 841
 842 check_host_cc(){
 843     log check_host_cc "$@"
 844     cat > $TMPC
 845     log_file $TMPC
 846     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 847 }
 848
 849 check_host_cflags(){
 850     log check_host_cflags "$@"
 851     check_host_cc "$@" <<EOF && append host_cflags "$@"
 852 int x;
 853 EOF
 854 }
 855
 856 apply(){
 857     file=$1
 858     shift
 859     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 860 }
 861
 862 cp_if_changed(){
 863     cmp -s "$1" "$2" &&
 864         echo "$2 is unchanged" ||
 865         cp -f "$1" "$2"
 866 }
 867
 868 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 869 # system-dependent things.
 870
 871 COMPONENT_LIST="
 872     bsfs
 873     decoders
 874     demuxers
 875     encoders
 876     filters
 877     hwaccels
 878     indevs
 879     muxers
 880     outdevs
 881     parsers
 882     protocols
 883 "
 884
 885 CONFIG_LIST="
 886     $COMPONENT_LIST
 887     aandct
 888     avcodec
 889     avdevice
 890     avfilter
 891     avfilter_lavf
 892     avformat
 893     avisynth
 894     beos_netserver
 895     bzlib
 896     dct
 897     doc
 898     dwt
 899     dxva2
 900     fastdiv
 901     ffmpeg
 902     ffplay
 903     ffprobe
 904     ffserver
 905     fft
 906     golomb
 907     gpl
 908     gprof
 909     gray
 910     h264dsp
 911     hardcoded_tables
 912     libdc1394
 913     libdirac
 914     libfaac
 915     libfaad
 916     libfaadbin
 917     libgsm
 918     libmp3lame
 919     libnut
 920     libopencore_amrnb
 921     libopencore_amrwb
 922     libopenjpeg
 923     libschroedinger
 924     libspeex
 925     libtheora
 926     libvorbis
 927     libx264
 928     libxvid
 929     lpc
 930     lsp
 931     mdct
 932     memalign_hack
 933     mlib
 934     mpegaudio_hp
 935     network
 936     nonfree
 937     pic
 938     postproc
 939     powerpc_perf
 940     rdft
 941     runtime_cpudetect
 942     shared
 943     small
 944     sram
 945     static
 946     swscale
 947     swscale_alpha
 948     vaapi
 949     vdpau
 950     version3
 951     x11grab
 952     zlib
 953 "
 954
 955 THREADS_LIST='
 956     beosthreads
 957     os2threads
 958     pthreads
 959     w32threads
 960 '
 961
 962 ARCH_LIST='
 963     alpha
 964     arm
 965     avr32
 966     avr32_ap
 967     avr32_uc
 968     bfin
 969     ia64
 970     m68k
 971     mips
 972     mips64
 973     parisc
 974     ppc
 975     ppc64
 976     s390
 977     sh4
 978     sparc
 979     sparc64
 980     tomi
 981     x86
 982     x86_32
 983     x86_64
 984 '
 985
 986 ARCH_EXT_LIST='
 987     altivec
 988     amd3dnow
 989     amd3dnowext
 990     armv5te
 991     armv6
 992     armv6t2
 993     armvfp
 994     iwmmxt
 995     mmi
 996     mmx
 997     mmx2
 998     neon
 999     ppc4xx
1000     sse
1001     ssse3
1002     vis
1003 '
1004
1005 HAVE_LIST_PUB='
1006     bigendian
1007 '
1008
1009 HAVE_LIST="
1010     $ARCH_EXT_LIST
1011     $HAVE_LIST_PUB
1012     $THREADS_LIST
1013     alsa_asoundlib_h
1014     altivec_h
1015     arpa_inet_h
1016     attribute_may_alias
1017     attribute_packed
1018     bswap
1019     closesocket
1020     cmov
1021     conio_h
1022     dcbzl
1023     dev_bktr_ioctl_bt848_h
1024     dev_bktr_ioctl_meteor_h
1025     dev_ic_bt8xx_h
1026     dev_video_meteor_ioctl_meteor_h
1027     dev_video_bktr_ioctl_bt848_h
1028     dlfcn_h
1029     dlopen
1030     dos_paths
1031     ebp_available
1032     ebx_available
1033     exp2
1034     exp2f
1035     fast_64bit
1036     fast_clz
1037     fast_cmov
1038     fast_unaligned
1039     fork
1040     getaddrinfo
1041     gethrtime
1042     GetProcessMemoryInfo
1043     GetProcessTimes
1044     getrusage
1045     struct_rusage_ru_maxrss
1046     inet_aton
1047     inline_asm
1048     isatty
1049     ldbrx
1050     libdc1394_1
1051     libdc1394_2
1052     llrint
1053     local_aligned_16
1054     local_aligned_8
1055     log2
1056     log2f
1057     loongson
1058     lrint
1059     lrintf
1060     lzo1x_999_compress
1061     machine_ioctl_bt848_h
1062     machine_ioctl_meteor_h
1063     malloc_h
1064     memalign
1065     mkstemp
1066     pld
1067     posix_memalign
1068     round
1069     roundf
1070     sdl
1071     sdl_video_size
1072     setmode
1073     socklen_t
1074     soundcard_h
1075     poll_h
1076     setrlimit
1077     struct_addrinfo
1078     struct_ipv6_mreq
1079     struct_sockaddr_in6
1080     struct_sockaddr_sa_len
1081     struct_sockaddr_storage
1082     sys_mman_h
1083     sys_resource_h
1084     sys_select_h
1085     sys_soundcard_h
1086     sys_videoio_h
1087     ten_operands
1088     termios_h
1089     threads
1090     truncf
1091     vfp_args
1092     VirtualAlloc
1093     winsock2_h
1094     xform_asm
1095     yasm
1096 "
1097
1098 # options emitted with CONFIG_ prefix but not available on command line
1099 CONFIG_EXTRA="
1100     avutil
1101     gplv3
1102     lgplv3
1103 "
1104
1105 CMDLINE_SELECT="
1106     $ARCH_EXT_LIST
1107     $CONFIG_LIST
1108     $THREADS_LIST
1109     asm
1110     cross_compile
1111     debug
1112     extra_warnings
1113     logging
1114     optimizations
1115     stripping
1116     yasm
1117 "
1118
1119 PATHS_LIST='
1120     bindir
1121     datadir
1122     incdir
1123     libdir
1124     mandir
1125     prefix
1126     shlibdir
1127 '
1128
1129 CMDLINE_SET="
1130     $PATHS_LIST
1131     arch
1132     as
1133     build_suffix
1134     cc
1135     cpu
1136     cross_prefix
1137     dep_cc
1138     extra_version
1139     host_cc
1140     host_cflags
1141     host_ldflags
1142     host_libs
1143     host_os
1144     ld
1145     logfile
1146     malloc_prefix
1147     nm
1148     samples
1149     source_path
1150     strip
1151     sysinclude
1152     sysroot
1153     target_exec
1154     target_os
1155     target_path
1156 "
1157
1158 CMDLINE_APPEND="
1159     extra_cflags
1160 "
1161
1162 # code dependency declarations
1163
1164 # architecture extensions
1165
1166 armv5te_deps="arm"
1167 armv6_deps="arm"
1168 armv6t2_deps="arm"
1169 armvfp_deps="arm"
1170 iwmmxt_deps="arm"
1171 neon_deps="arm"
1172
1173 mmi_deps="mips"
1174
1175 altivec_deps="ppc"
1176 ppc4xx_deps="ppc"
1177
1178 vis_deps="sparc"
1179
1180 x86_64_suggest="cmov fast_cmov"
1181 amd3dnow_deps="mmx"
1182 amd3dnowext_deps="amd3dnow"
1183 mmx_deps="x86"
1184 mmx2_deps="mmx"
1185 sse_deps="mmx"
1186 ssse3_deps="sse"
1187
1188 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1189 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1190 fast_unaligned_if_any="armv6 ppc x86"
1191
1192 need_memalign="altivec neon sse"
1193 inline_asm_deps="!tms470"
1194
1195 # subsystems
1196 mdct_select="fft"
1197 rdft_select="fft"
1198
1199 # decoders / encoders / hardware accelerators
1200 aac_decoder_select="mdct rdft aac_parser"
1201 aac_encoder_select="mdct"
1202 ac3_decoder_select="mdct ac3_parser"
1203 alac_encoder_select="lpc"
1204 amrnb_decoder_select="lsp"
1205 atrac1_decoder_select="mdct"
1206 atrac3_decoder_select="mdct"
1207 binkaudio_dct_decoder_select="mdct rdft dct"
1208 binkaudio_rdft_decoder_select="mdct rdft"
1209 cavs_decoder_select="golomb"
1210 cook_decoder_select="mdct"
1211 cscd_decoder_suggest="zlib"
1212 dca_decoder_select="mdct"
1213 dnxhd_encoder_select="aandct"
1214 dxa_decoder_select="zlib"
1215 eac3_decoder_select="ac3_decoder"
1216 eamad_decoder_select="aandct"
1217 eatgq_decoder_select="aandct"
1218 eatqi_decoder_select="aandct"
1219 ffv1_decoder_select="golomb"
1220 flac_decoder_select="golomb"
1221 flac_encoder_select="golomb lpc"
1222 flashsv_decoder_select="zlib"
1223 flashsv_encoder_select="zlib"
1224 flv_decoder_select="h263_decoder"
1225 flv_encoder_select="h263_encoder"
1226 h261_encoder_select="aandct"
1227 h263_decoder_select="h263_parser"
1228 h263_encoder_select="aandct"
1229 h263_vaapi_hwaccel_deps="va_va_h"
1230 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1231 h263i_decoder_select="h263_decoder"
1232 h263p_encoder_select="h263_encoder"
1233 h264_decoder_select="golomb h264dsp"
1234 h264_dxva2_hwaccel_deps="dxva2api_h"
1235 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1236 h264_vaapi_hwaccel_deps="va_va_h"
1237 h264_vaapi_hwaccel_select="vaapi"
1238 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1239 h264_vdpau_decoder_select="vdpau h264_decoder"
1240 imc_decoder_select="fft mdct"
1241 jpegls_decoder_select="golomb"
1242 jpegls_encoder_select="golomb"
1243 ljpeg_encoder_select="aandct"
1244 loco_decoder_select="golomb"
1245 mjpeg_encoder_select="aandct"
1246 mlp_decoder_select="mlp_parser"
1247 mpeg1video_encoder_select="aandct"
1248 mpeg2video_encoder_select="aandct"
1249 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1250 mpeg4_encoder_select="h263_encoder"
1251 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1252 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1253 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1254 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1255 mpeg2_vaapi_hwaccel_deps="va_va_h"
1256 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1257 mpeg4_vaapi_hwaccel_deps="va_va_h"
1258 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1259 mpeg4_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1260 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1261 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1262 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1263 msmpeg4v1_decoder_select="h263_decoder"
1264 msmpeg4v1_encoder_select="h263_encoder"
1265 msmpeg4v2_decoder_select="h263_decoder"
1266 msmpeg4v2_encoder_select="h263_encoder"
1267 msmpeg4v3_decoder_select="h263_decoder"
1268 msmpeg4v3_encoder_select="h263_encoder"
1269 nellymoser_decoder_select="mdct"
1270 nellymoser_encoder_select="mdct"
1271 png_decoder_select="zlib"
1272 png_encoder_select="zlib"
1273 qcelp_decoder_select="lsp"
1274 qdm2_decoder_select="mdct rdft"
1275 rv10_decoder_select="h263_decoder"
1276 rv10_encoder_select="h263_encoder"
1277 rv20_decoder_select="h263_decoder"
1278 rv20_encoder_select="h263_encoder"
1279 rv30_decoder_select="golomb h264dsp"
1280 rv40_decoder_select="golomb h264dsp"
1281 shorten_decoder_select="golomb"
1282 sipr_decoder_select="lsp"
1283 snow_decoder_select="dwt"
1284 snow_encoder_select="aandct dwt"
1285 sonic_decoder_select="golomb"
1286 sonic_encoder_select="golomb"
1287 sonic_ls_encoder_select="golomb"
1288 svq1_encoder_select="aandct"
1289 svq3_decoder_select="golomb h264dsp"
1290 svq3_decoder_suggest="zlib"
1291 theora_decoder_select="vp3_decoder"
1292 tiff_decoder_suggest="zlib"
1293 tiff_encoder_suggest="zlib"
1294 truehd_decoder_select="mlp_decoder"
1295 tscc_decoder_select="zlib"
1296 twinvq_decoder_select="mdct lsp"
1297 vc1_decoder_select="h263_decoder"
1298 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1299 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1300 vc1_vaapi_hwaccel_deps="va_va_h"
1301 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1302 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1303 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1304 vorbis_decoder_select="mdct"
1305 vorbis_encoder_select="mdct"
1306 vp6a_decoder_select="vp6_decoder"
1307 vp6f_decoder_select="vp6_decoder"
1308 wmapro_decoder_select="mdct"
1309 wmav1_decoder_select="mdct"
1310 wmav1_encoder_select="mdct"
1311 wmav2_decoder_select="mdct"
1312 wmav2_encoder_select="mdct"
1313 wmavoice_decoder_select="lsp"
1314 wmv1_decoder_select="h263_decoder"
1315 wmv1_encoder_select="h263_encoder"
1316 wmv2_decoder_select="h263_decoder"
1317 wmv2_encoder_select="h263_encoder"
1318 wmv3_decoder_select="vc1_decoder"
1319 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1320 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1321 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1322 zlib_decoder_select="zlib"
1323 zlib_encoder_select="zlib"
1324 zmbv_decoder_select="zlib"
1325 zmbv_encoder_select="zlib"
1326
1327 # parsers
1328 h264_parser_select="golomb h264dsp"
1329
1330 # bitstream_filters
1331 aac_adtstoasc_bsf_select="aac_parser"
1332
1333 # external libraries
1334 libdirac_decoder_deps="libdirac !libschroedinger"
1335 libdirac_encoder_deps="libdirac"
1336 libfaac_encoder_deps="libfaac"
1337 libfaad_decoder_deps="libfaad"
1338 libfaadbin_decoder_extralibs='$ldl'
1339 libgsm_decoder_deps="libgsm"
1340 libgsm_encoder_deps="libgsm"
1341 libgsm_ms_decoder_deps="libgsm"
1342 libgsm_ms_encoder_deps="libgsm"
1343 libmp3lame_encoder_deps="libmp3lame"
1344 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1345 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1346 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1347 libopenjpeg_decoder_deps="libopenjpeg"
1348 libschroedinger_decoder_deps="libschroedinger"
1349 libschroedinger_encoder_deps="libschroedinger"
1350 libspeex_decoder_deps="libspeex"
1351 libtheora_encoder_deps="libtheora"
1352 libvorbis_encoder_deps="libvorbis"
1353 libx264_encoder_deps="libx264"
1354 libxvid_encoder_deps="libxvid"
1355
1356 # demuxers / muxers
1357 ac3_demuxer_deps="ac3_parser"
1358 asf_stream_muxer_select="asf_muxer"
1359 avisynth_demuxer_deps="avisynth"
1360 dirac_demuxer_deps="dirac_parser"
1361 eac3_demuxer_select="ac3_parser"
1362 ipod_muxer_select="mov_muxer"
1363 libnut_demuxer_deps="libnut"
1364 libnut_muxer_deps="libnut"
1365 matroska_audio_muxer_select="matroska_muxer"
1366 matroska_demuxer_suggest="zlib bzlib"
1367 mov_demuxer_suggest="zlib"
1368 mp3_demuxer_deps="mpegaudio_parser"
1369 mp4_muxer_select="mov_muxer"
1370 mpegtsraw_demuxer_select="mpegts_demuxer"
1371 mxf_d10_muxer_select="mxf_muxer"
1372 ogg_demuxer_select="golomb"
1373 psp_muxer_select="mov_muxer"
1374 rtsp_demuxer_deps="sdp_demuxer"
1375 rtsp_muxer_deps="sdp_demuxer"
1376 rtsp_muxer_select="rtp_muxer"
1377 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1378 sdp_demuxer_select="asf_demuxer rm_demuxer"
1379 spdif_muxer_select="aac_parser"
1380 tg2_muxer_select="mov_muxer"
1381 tgp_muxer_select="mov_muxer"
1382 w64_demuxer_deps="wav_demuxer"
1383
1384 # indevs / outdevs
1385 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1386 alsa_indev_extralibs="-lasound"
1387 alsa_outdev_deps="alsa_asoundlib_h"
1388 alsa_outdev_extralibs="-lasound"
1389 audio_beos_indev_deps="audio_beos"
1390 audio_beos_indev_extralibs="-lmedia -lbe"
1391 audio_beos_outdev_deps="audio_beos"
1392 audio_beos_outdev_extralibs="-lmedia -lbe"
1393 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1394 dv1394_indev_deps="dv1394 dv_demuxer"
1395 jack_indev_deps="jack_jack_h"
1396 jack_indev_extralibs="-ljack"
1397 libdc1394_indev_deps="libdc1394"
1398 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1399 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1400 v4l_indev_deps="linux_videodev_h"
1401 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1402 vfwcap_indev_deps="capCreateCaptureWindow"
1403 vfwcap_indev_extralibs="-lavicap32"
1404 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1405 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1406
1407 # protocols
1408 gopher_protocol_deps="network"
1409 http_protocol_deps="network"
1410 http_protocol_select="tcp_protocol"
1411 rtmp_protocol_deps="tcp_protocol"
1412 rtp_protocol_deps="udp_protocol"
1413 tcp_protocol_deps="network"
1414 udp_protocol_deps="network"
1415
1416 # filters
1417 movie_filter_deps="avfilter_lavf"
1418 avfilter_lavf_deps="avformat"
1419
1420 # libraries
1421 avdevice_deps="avcodec avformat"
1422 avformat_deps="avcodec"
1423
1424 # programs
1425 ffmpeg_deps="avcodec avformat swscale"
1426 ffplay_deps="avcodec avformat swscale sdl"
1427 ffplay_select="rdft"
1428 ffprobe_deps="avcodec avformat"
1429 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1430 ffserver_extralibs='$ldl'
1431
1432 doc_deps="texi2html"
1433
1434 # default parameters
1435
1436 logfile="config.err"
1437
1438 # installation paths
1439 prefix_default="/usr/local"
1440 bindir_default='${prefix}/bin'
1441 datadir_default='${prefix}/share/ffmpeg'
1442 incdir_default='${prefix}/include'
1443 libdir_default='${prefix}/lib'
1444 mandir_default='${prefix}/share/man'
1445 shlibdir_default="$libdir_default"
1446
1447 # toolchain
1448 ar="ar"
1449 cc_default="gcc"
1450 cc_version=\"unknown\"
1451 host_cc_default="gcc"
1452 ln_s="ln -sf"
1453 nm_default="nm"
1454 objformat="elf"
1455 ranlib="ranlib"
1456 strip_default="strip"
1457 yasmexe="yasm"
1458
1459 nm_opts='-g'
1460
1461 # machine
1462 arch_default=$(uname -m)
1463 cpu="generic"
1464
1465 # OS
1466 target_os_default=$(tolower $(uname -s))
1467 host_os=$target_os_default
1468
1469 # configurable options
1470 enable avcodec
1471 enable avdevice
1472 enable avformat
1473 enable avutil
1474 enable asm
1475 enable debug
1476 enable doc
1477 enable fastdiv
1478 enable ffmpeg
1479 enable ffplay
1480 enable ffprobe
1481 enable ffserver
1482 enable mpegaudio_hp
1483 enable network
1484 enable optimizations
1485 enable protocols
1486 enable static
1487 enable stripping
1488 enable swscale
1489 enable swscale_alpha
1490
1491 # build settings
1492 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1493 FFSERVERLDFLAGS=-Wl,-E
1494 LIBPREF="lib"
1495 LIBSUF=".a"
1496 FULLNAME='$(NAME)$(BUILDSUF)'
1497 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1498 SLIBPREF="lib"
1499 SLIBSUF=".so"
1500 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1501 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1502 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1503 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1504
1505 CC_O='-o $@'
1506
1507 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1508 host_libs='-lm'
1509
1510 target_path='$(CURDIR)'
1511
1512 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1513 # full relative path for objects in subdirectories for non-recursive Make.
1514 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1515 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1516
1517 # find source path
1518 source_path="$(dirname "$0")"
1519 enable source_path_used
1520 if test -f configure; then
1521     source_path="$(pwd)"
1522     disable source_path_used
1523 else
1524     source_path="$(cd "$source_path"; pwd)"
1525     echo "$source_path" | grep -q '[[:blank:]]' &&
1526         die "Out of tree builds are impossible with whitespace in source path."
1527     test -e "$source_path/config.h" &&
1528         die "Out of tree builds are impossible with config.h in source dir."
1529 fi
1530
1531 for v in "$@"; do
1532     r=${v#*=}
1533     l=${v%"$r"}
1534     r=$(sh_quote "$r")
1535     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1536 done
1537
1538 find_things(){
1539     thing=$1
1540     pattern=$2
1541     file=$source_path/$3
1542     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1543 }
1544
1545 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1546 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1547 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1548 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1549 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1550 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1551 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1552 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1553 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1554 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1555 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1556
1557 enable $ARCH_EXT_LIST \
1558        $DECODER_LIST \
1559        $ENCODER_LIST \
1560        $HWACCEL_LIST \
1561        $PARSER_LIST \
1562        $BSF_LIST \
1563        $DEMUXER_LIST \
1564        $MUXER_LIST \
1565        $FILTER_LIST \
1566        $PROTOCOL_LIST \
1567        $INDEV_LIST \
1568        $OUTDEV_LIST \
1569
1570 die_unknown(){
1571     echo "Unknown option \"$1\"."
1572     echo "See $0 --help for available options."
1573     exit 1
1574 }
1575
1576 show_list() {
1577     suffix=_$1
1578     shift
1579     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1580     exit 0
1581 }
1582
1583 for opt do
1584     optval="${opt#*=}"
1585     case "$opt" in
1586     --extra-ldflags=*) add_ldflags $optval
1587     ;;
1588     --extra-libs=*) add_extralibs $optval
1589     ;;
1590     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1591     ;;
1592     --enable-debug=*) debuglevel="$optval"
1593     ;;
1594     --disable-everything)
1595     map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1596     ;;
1597     --enable-*=*|--disable-*=*)
1598     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1599     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1600     eval list=\$$(toupper $thing)_LIST
1601     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1602     $action $(filter "$name" $list)
1603     ;;
1604     --enable-?*|--disable-?*)
1605     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1606     if is_in $option $COMPONENT_LIST; then
1607         test $action = disable && action=unset
1608         eval $action \$$(toupper ${option%s})_LIST
1609     elif is_in $option $CMDLINE_SELECT; then
1610         $action $option
1611     else
1612         die_unknown $opt
1613     fi
1614     ;;
1615     --list-*)
1616         NAME="${opt#--list-}"
1617         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1618         NAME=${NAME%s}
1619         eval show_list $NAME \$$(toupper $NAME)_LIST
1620     ;;
1621     --help|-h) show_help
1622     ;;
1623     *)
1624     optname="${opt%%=*}"
1625     optname="${optname#--}"
1626     optname=$(echo "$optname" | sed 's/-/_/g')
1627     if is_in $optname $CMDLINE_SET; then
1628         eval $optname='$optval'
1629     elif is_in $optname $CMDLINE_APPEND; then
1630         append $optname "$optval"
1631     else
1632          die_unknown $opt
1633     fi
1634     ;;
1635     esac
1636 done
1637
1638 disabled logging && logfile=/dev/null
1639
1640 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1641 set >> $logfile
1642
1643 test -n "$cross_prefix" && enable cross_compile
1644
1645 if enabled cross_compile; then
1646     test -n "$arch" && test -n "$target_os" ||
1647         die "Must specify target arch and OS when cross-compiling"
1648 fi
1649
1650 set_default arch target_os
1651
1652 ar="${cross_prefix}${ar}"
1653 cc_default="${cross_prefix}${cc_default}"
1654 nm_default="${cross_prefix}${nm_default}"
1655 ranlib="${cross_prefix}${ranlib}"
1656 strip_default="${cross_prefix}${strip_default}"
1657
1658 sysinclude_default="${sysroot}/usr/include"
1659
1660 set_default cc nm strip sysinclude
1661 enabled cross_compile || host_cc_default=$cc
1662 set_default host_cc
1663
1664 exesuf() {
1665     case $1 in
1666         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1667     esac
1668 }
1669
1670 EXESUF=$(exesuf $target_os)
1671 HOSTEXESUF=$(exesuf $host_os)
1672
1673 # set temporary file name
1674 : ${TMPDIR:=$TEMPDIR}
1675 : ${TMPDIR:=$TMP}
1676 : ${TMPDIR:=/tmp}
1677
1678 if ! check_cmd type mktemp; then
1679     # simple replacement for missing mktemp
1680     # NOT SAFE FOR GENERAL USE
1681     mktemp(){
1682         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1683     }
1684 fi
1685
1686 tmpfile(){
1687     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1688         (set -C; exec > $tmp) 2>/dev/null ||
1689         die "Unable to create temporary file in $TMPDIR."
1690     append TMPFILES $tmp
1691     eval $1=$tmp
1692 }
1693
1694 trap 'rm -f -- $TMPFILES' EXIT
1695 trap exit HUP INT TERM
1696
1697 tmpfile TMPC  .c
1698 tmpfile TMPE  $EXESUF
1699 tmpfile TMPH  .h
1700 tmpfile TMPO  .o
1701 tmpfile TMPS  .S
1702 tmpfile TMPV  .ver
1703 tmpfile TMPSH .sh
1704
1705 unset -f mktemp
1706
1707 # make sure we can execute files in $TMPDIR
1708 cat > $TMPSH 2>> $logfile <<EOF
1709 #! /bin/sh
1710 EOF
1711 chmod +x $TMPSH >> $logfile 2>&1
1712 if ! $TMPSH >> $logfile 2>&1; then
1713     cat <<EOF
1714 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1715 variable to another directory and make sure that it is not mounted noexec.
1716 EOF
1717     die "Sanity test failed."
1718 fi
1719
1720 filter_cflags=echo
1721 filter_cppflags=echo
1722 filter_asflags=echo
1723
1724 if   $cc -v 2>&1 | grep -qi ^gcc; then
1725     cc_type=gcc
1726     cc_version=__VERSION__
1727     if ! $cc -dumpversion | grep -q '^2\.'; then
1728         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1729         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1730     fi
1731     speed_cflags='-O3'
1732     size_cflags='-Os'
1733 elif $cc --version 2>/dev/null | grep -q Intel; then
1734     cc_type=icc
1735     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1736     CC_DEPFLAGS='-MMD'
1737     AS_DEPFLAGS='-MMD'
1738     speed_cflags='-O3'
1739     size_cflags='-Os'
1740 elif $cc -v 2>&1 | grep -q xlc; then
1741     cc_type=xlc
1742     cc_version="AV_STRINGIFY(__IBMC__)"
1743     speed_cflags='-O5'
1744     size_cflags='-O5 -qcompact'
1745 elif $cc -V 2>/dev/null | grep -q Compaq; then
1746     cc_type=ccc
1747     cc_version="AV_STRINGIFY(__DECC_VER)"
1748     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1749     debuglevel=3
1750     add_ldflags -Wl,-z,now # calls to libots crash without this
1751     speed_cflags='-fast'
1752     size_cflags='-O1'
1753 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1754     test -d "$sysroot" || die "No valid sysroot specified."
1755     cc_type=armcc
1756     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1757     armcc_conf="$PWD/armcc.conf"
1758     $cc --arm_linux_configure                 \
1759         --arm_linux_config_file="$armcc_conf" \
1760         --configure_sysroot="$sysroot"        \
1761         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1762         die "Error creating armcc configuration file."
1763     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1764     as_default="${cross_prefix}gcc"
1765     CC_DEPFLAGS='-MMD'
1766     AS_DEPFLAGS='-MMD'
1767     speed_cflags='-O3'
1768     size_cflags='-Os'
1769 elif $cc -version 2>/dev/null | grep -q TMS470; then
1770     cc_type=tms470
1771     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1772     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1773     CC_O='-fr=$(@D)'
1774     as_default="${cross_prefix}gcc"
1775     ld_default="${cross_prefix}gcc"
1776     TMPO=$(basename $TMPC .c).o
1777     append TMPFILES $TMPO
1778     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1779     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1780     AS_DEPFLAGS='-MMD'
1781     speed_cflags='-O3 -mf=5'
1782     size_cflags='-O3 -mf=2'
1783     filter_cflags=tms470_flags
1784     tms470_flags(){
1785         for flag; do
1786             case $flag in
1787                 -march=*|-mcpu=*)
1788                     case "${flag#*=}" in
1789                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1790                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1791                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1792                         armv6*|arm11*)          echo -mv=6   ;;
1793                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1794                                                 echo -mv=5e  ;;
1795                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1796                     esac
1797                     ;;
1798                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1799                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1800                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1801                 -msoft-float)   echo --float_support=vfplib       ;;
1802                 -O[0-3]|-mf=*)  echo $flag                        ;;
1803                 -g)             echo -g -mn                       ;;
1804                 -pds=*)         echo $flag                        ;;
1805             esac
1806         done
1807     }
1808 elif $cc -v 2>&1 | grep -q clang; then
1809     cc_type=clang
1810     cc_version=__VERSION__
1811     CC_DEPFLAGS='-MMD'
1812     AS_DEPFLAGS='-MMD'
1813     speed_cflags='-O3'
1814     size_cflags='-Os'
1815 elif $cc -V 2>&1 | grep -q Sun; then
1816     cc_type=suncc
1817     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1818     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1819     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1820     speed_cflags='-O5'
1821     size_cflags='-O5 -xspace'
1822     filter_cflags=suncc_flags
1823     suncc_flags(){
1824         for flag; do
1825             case $flag in
1826                 -march=*|-mcpu=*)
1827                     case "${flag#*=}" in
1828                         native)                   echo -xtarget=native       ;;
1829                         v9)                       echo -xarch=sparc          ;;
1830                         ultrasparc)               echo -xarch=sparcvis       ;;
1831                         ultrasparc3|niagara*)     echo -xarch=sparcvis2      ;;
1832                         i586|pentium)             echo -xchip=pentium        ;;
1833                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1834                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1835                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1836                         pentium4*)          echo -xtarget=pentium4           ;;
1837                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1838                         *-sse3)             echo -xarch=sse3                 ;;
1839                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1840                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1841                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1842                         k8|opteron|athlon64|athlon-fx)
1843                                                   echo -xarch=sse2a          ;;
1844                         athlon*)                  echo -xarch=pentium_proa   ;;
1845                     esac
1846                     ;;
1847                 -std=c99)             echo -xc99              ;;
1848                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1849                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1850                 -W*,*)                echo $flag              ;;
1851                 -f*-*|-W*)                                    ;;
1852                 *)                    echo $flag              ;;
1853             esac
1854         done
1855     }
1856 fi
1857
1858 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1859
1860 : ${as_default:=$cc}
1861 : ${dep_cc_default:=$cc}
1862 : ${ld_default:=$cc}
1863 set_default as dep_cc ld
1864
1865 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1866 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1867
1868 add_cflags $extra_cflags
1869 add_asflags $extra_cflags
1870
1871 if test -n "$sysroot"; then
1872     case "$cc_type" in
1873         gcc)
1874             add_cppflags --sysroot="$sysroot"
1875             add_ldflags --sysroot="$sysroot"
1876         ;;
1877         tms470)
1878             add_cppflags -I"$sysinclude"
1879             add_ldflags  --sysroot="$sysroot"
1880         ;;
1881         clang)
1882             add_cppflags -isysroot "$sysroot"
1883             add_ldflags -isysroot "$sysroot"
1884         ;;
1885     esac
1886 fi
1887
1888 if test "$cpu" = host; then
1889     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1890
1891     case "$cc_type" in
1892         gcc)
1893             check_native(){
1894                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1895                 sed -n "/$1=/{
1896                             s/.*$1=\\([^ ]*\\).*/\\1/
1897                             p
1898                             q
1899                         }" $TMPE
1900             }
1901             cpu=$(check_native -march || check_native -mcpu)
1902         ;;
1903     esac
1904
1905     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1906 fi
1907
1908 # Deal with common $arch aliases
1909 case "$arch" in
1910     arm*)
1911         arch="arm"
1912     ;;
1913     mips|mipsel|IP*)
1914         arch="mips"
1915     ;;
1916     mips64*)
1917         arch="mips"
1918         subarch="mips64"
1919     ;;
1920     parisc|hppa)
1921         arch="parisc"
1922     ;;
1923     parisc64|hppa64)
1924         arch="parisc"
1925         subarch="parisc64"
1926     ;;
1927     "Power Macintosh"|ppc|powerpc)
1928         arch="ppc"
1929     ;;
1930     ppc64|powerpc64)
1931         arch="ppc"
1932         subarch="ppc64"
1933     ;;
1934     s390|s390x)
1935         arch="s390"
1936     ;;
1937     sh4|sh)
1938         arch="sh4"
1939     ;;
1940     sun4u|sparc64)
1941         arch="sparc"
1942         subarch="sparc64"
1943     ;;
1944     i[3-6]86|i86pc|BePC|x86_64|amd64)
1945         arch="x86"
1946     ;;
1947 esac
1948
1949 is_in $arch $ARCH_LIST || echo "WARNING: unknown arch $arch"
1950 enable $arch
1951
1952 # Add processor-specific flags
1953 if test "$cpu" = generic; then
1954     : do nothing
1955 elif enabled ppc; then
1956
1957     case $(tolower $cpu) in
1958         601|ppc601|powerpc601)
1959             cpuflags="-mcpu=601"
1960             disable altivec
1961         ;;
1962         603*|ppc603*|powerpc603*)
1963             cpuflags="-mcpu=603"
1964             disable altivec
1965         ;;
1966         604*|ppc604*|powerpc604*)
1967             cpuflags="-mcpu=604"
1968             disable altivec
1969         ;;
1970         g3|75*|ppc75*|powerpc75*)
1971             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1972             disable altivec
1973         ;;
1974         g4|745*|ppc745*|powerpc745*)
1975             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1976         ;;
1977         74*|ppc74*|powerpc74*)
1978             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1979         ;;
1980         g5|970|ppc970|powerpc970|power4*)
1981             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1982         ;;
1983         cell)
1984             cpuflags="-mcpu=cell"
1985             enable ldbrx
1986         ;;
1987         e500v2)
1988             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
1989             disable altivec
1990         ;;
1991         e500)
1992             cpuflags="-mcpu=8540 -mhard-float"
1993             disable altivec
1994         ;;
1995     esac
1996
1997 elif enabled x86; then
1998
1999     case $cpu in
2000         i[345]86|pentium)
2001             cpuflags="-march=$cpu"
2002             disable mmx
2003         ;;
2004         # targets that do NOT support conditional mov (cmov)
2005         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2006             cpuflags="-march=$cpu"
2007             disable cmov
2008         ;;
2009         # targets that do support conditional mov (cmov)
2010         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
2011             cpuflags="-march=$cpu"
2012             enable cmov
2013             enable fast_cmov
2014         ;;
2015         # targets that do support conditional mov but on which it's slow
2016         pentium4|pentium4m|prescott|nocona)
2017             cpuflags="-march=$cpu"
2018             enable cmov
2019             disable fast_cmov
2020         ;;
2021     esac
2022
2023 elif enabled sparc; then
2024
2025     case $cpu in
2026         sparc64)
2027             cpuflags="-mcpu=v9"
2028         ;;
2029     esac
2030
2031 elif enabled arm; then
2032
2033     case $cpu in
2034         armv*)
2035             cpuflags="-march=$cpu"
2036         ;;
2037         *)
2038             cpuflags="-mcpu=$cpu"
2039         ;;
2040     esac
2041
2042 elif enabled alpha; then
2043
2044     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2045
2046 elif enabled bfin; then
2047
2048     cpuflags="-mcpu=$cpu"
2049
2050 elif enabled mips; then
2051
2052     cpuflags="-march=$cpu"
2053
2054 elif enabled avr32; then
2055
2056     case $cpu in
2057         ap7[02]0[0-2])
2058             subarch="avr32_ap"
2059             cpuflags="-mpart=$cpu"
2060         ;;
2061         ap)
2062             subarch="avr32_ap"
2063             cpuflags="-march=$cpu"
2064         ;;
2065         uc3[ab]*)
2066             subarch="avr32_uc"
2067             cpuflags="-mcpu=$cpu"
2068         ;;
2069         uc)
2070             subarch="avr32_uc"
2071             cpuflags="-march=$cpu"
2072         ;;
2073     esac
2074
2075 fi
2076
2077 add_cflags $cpuflags
2078 add_asflags $cpuflags
2079
2080 # compiler sanity check
2081 check_exec <<EOF
2082 int main(void){ return 0; }
2083 EOF
2084 if test "$?" != 0; then
2085     echo "$cc is unable to create an executable file."
2086     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2087         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2088         echo "Only do this if you know what cross compiling means."
2089     fi
2090     die "C compiler test failed."
2091 fi
2092
2093 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2094 check_cflags -std=c99
2095 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2096 #include <stdlib.h>
2097 EOF
2098 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2099 #include <stdlib.h>
2100 EOF
2101
2102 check_host_cflags -std=c99
2103
2104 case "$arch" in
2105     alpha|ia64|mips|parisc|sparc)
2106         spic=$shared
2107     ;;
2108     x86)
2109         subarch="x86_32"
2110         check_cc <<EOF && subarch="x86_64"
2111         int test[(int)sizeof(char*) - 7];
2112 EOF
2113         if test "$subarch" = "x86_64"; then
2114             spic=$shared
2115         fi
2116     ;;
2117 esac
2118
2119 enable $subarch
2120 enabled spic && enable pic
2121 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2122
2123 # OS specific
2124 case $target_os in
2125     beos|haiku|zeta)
2126         prefix_default="$HOME/config"
2127         # 3 gcc releases known for BeOS, each with ugly bugs
2128         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
2129         case "$gcc_version" in
2130           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
2131             disable mmx
2132             ;;
2133           *20010315*) echo "BeBits gcc"
2134             add_cflags -fno-expensive-optimizations
2135             ;;
2136         esac
2137         SHFLAGS=-nostart
2138         # enable BeOS things
2139         enable audio_beos
2140         # no need for libm, but the inet stuff
2141         # Check for BONE
2142         # XXX: actually should check for NOT net_server
2143         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
2144             network_extralibs="-lbind -lsocket"
2145         else
2146             enable beos_netserver
2147             network_extralibs="-lnet"
2148         fi ;;
2149     sunos)
2150         FFSERVERLDFLAGS=""
2151         SHFLAGS='-shared -Wl,-h,$$(@F)'
2152         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2153         network_extralibs="-lsocket -lnsl"
2154         add_cppflags -D__EXTENSIONS__
2155         nm_opts='-P -g'
2156         ;;
2157     netbsd)
2158         oss_indev_extralibs="-lossaudio"
2159         oss_outdev_extralibs="-lossaudio"
2160         add_cppflags -D_XOPEN_SOURCE=600
2161         ;;
2162     openbsd)
2163         enable malloc_aligned
2164         # On OpenBSD 4.5. the compiler does not use PIC unless
2165         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2166         # however the generated executable will not do anything
2167         # (simply quits with exit-code 1, no crash, no output).
2168         # Thus explicitly enable PIC here.
2169         enable pic
2170         SHFLAGS='-shared'
2171         oss_indev_extralibs="-lossaudio"
2172         oss_outdev_extralibs="-lossaudio"
2173         ;;
2174     freebsd|dragonfly)
2175         enable malloc_aligned
2176         ;;
2177     bsd/os)
2178         osextralibs="-lpoll -lgnugetopt"
2179         strip="strip -d"
2180         ;;
2181     darwin)
2182         enable malloc_aligned
2183         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2184         strip="strip -x"
2185         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2186         SLIBSUF=".dylib"
2187         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2188         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2189         FFSERVERLDFLAGS=-Wl,-bind_at_load
2190         objformat="macho"
2191         enabled x86_64 && objformat="macho64"
2192         enabled_any pic shared ||
2193             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2194         ;;
2195     mingw32*)
2196         if test $target_os = "mingw32ce"; then
2197             disable network
2198         else
2199             target_os=mingw32
2200         fi
2201         LIBTARGET=i386
2202         if enabled x86_64; then
2203             enable malloc_aligned
2204             LIBTARGET=x64
2205         elif enabled arm; then
2206             LIBTARGET=arm
2207         fi
2208         shlibdir_default="$bindir_default"
2209         disable ffserver
2210         SLIBPREF=""
2211         SLIBSUF=".dll"
2212         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2213         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2214         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2215         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2216             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2217             install -d "$(LIBDIR)"; \
2218             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2219         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2220         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2221         objformat="win32"
2222         enable dos_paths
2223         check_cflags -fno-common
2224         if ! enabled x86_64; then
2225             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2226                 die "ERROR: MinGW runtime version must be >= 3.15."
2227             enabled_any avisynth vfwcap_indev &&
2228                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2229                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2230         fi
2231         ;;
2232     cygwin*)
2233         target_os=cygwin
2234         shlibdir_default="$bindir_default"
2235         SLIBPREF="cyg"
2236         SLIBSUF=".dll"
2237         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2238         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2239         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2240         objformat="win32"
2241         enable dos_paths
2242         check_cflags -fno-common
2243         ;;
2244     *-dos|freedos|opendos)
2245         disable ffplay ffserver
2246         disable $INDEV_LIST $OUTDEV_LIST
2247         network_extralibs="-lsocket"
2248         objformat="coff"
2249         enable dos_paths
2250         ;;
2251     linux)
2252         enable dv1394
2253         ;;
2254     irix*)
2255         target_os=irix
2256         ranlib="echo ignoring ranlib"
2257         ;;
2258     os/2*)
2259         strip="lxlite"
2260         ln_s="cp -f"
2261         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2262         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2263         FFSERVERLDFLAGS=""
2264         LIBSUF="_s.a"
2265         SLIBPREF=""
2266         SLIBSUF=".dll"
2267         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2268         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2269         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2270           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2271           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2272           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2273           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2274           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2275         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2276           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2277         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2278         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2279         enable dos_paths
2280         ;;
2281     gnu/kfreebsd)
2282         ;;
2283     gnu)
2284         ;;
2285     none)
2286         ;;
2287     *)
2288         die "Unknown OS '$target_os'."
2289         ;;
2290 esac
2291
2292 set_default $PATHS_LIST
2293
2294 add_extralibs $osextralibs
2295
2296 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2297 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2298
2299 # we need to build at least one lib type
2300 if ! enabled_any static shared; then
2301     cat <<EOF
2302 At least one library type must be built.
2303 Specify --enable-static to build the static libraries or --enable-shared to
2304 build the shared libraries as well. To only build the shared libraries specify
2305 --disable-static in addition to --enable-shared.
2306 EOF
2307     exit 1;
2308 fi
2309
2310 disabled static && LIBNAME=""
2311
2312 if enabled_any libfaad libfaadbin ; then
2313     if check_header faad.h; then
2314         check_cc <<EOF
2315 #include <faad.h>
2316 #ifndef FAAD2_VERSION
2317 ok faad1
2318 #endif
2319 int main(void) { return 0; }
2320 EOF
2321         test $? = 0 && enable libfaad2
2322     else
2323         die "FAAD test failed."
2324     fi
2325 fi
2326
2327
2328 die_license_disabled() {
2329     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2330 }
2331
2332 die_license_disabled gpl libfaad2
2333 die_license_disabled gpl libx264
2334 die_license_disabled gpl libxvid
2335 die_license_disabled gpl postproc
2336 die_license_disabled gpl x11grab
2337
2338 die_license_disabled nonfree libfaac
2339
2340 die_license_disabled version3 libopencore_amrnb
2341 die_license_disabled version3 libopencore_amrwb
2342
2343 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2344
2345 check_deps $ARCH_EXT_LIST
2346
2347 disabled optimizations || check_cflags -fomit-frame-pointer
2348
2349 enable_pic() {
2350     enable pic
2351     add_cppflags -DPIC
2352     add_cflags   -fPIC
2353     add_asflags  -fPIC
2354 }
2355
2356 enabled pic && enable_pic
2357
2358 check_cc <<EOF || die "Symbol mangling check failed."
2359 int ff_extern;
2360 EOF
2361 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2362 extern_prefix=${sym%%ff_extern*}
2363
2364 check_cc <<EOF && enable inline_asm
2365 void foo(void) { __asm__ volatile ("" ::); }
2366 EOF
2367
2368 _restrict=
2369 for restrict_keyword in restrict __restrict__ __restrict; do
2370     check_cc <<EOF && _restrict=$restrict_keyword && break
2371 void foo(char * $restrict_keyword p);
2372 EOF
2373 done
2374
2375 check_cc <<EOF && enable attribute_packed
2376 struct { int x; } __attribute__((packed)) x;
2377 EOF
2378
2379 check_cc <<EOF && enable attribute_may_alias
2380 union { int x; } __attribute__((may_alias)) x;
2381 EOF
2382
2383 check_cc <<EOF || die "endian test failed"
2384 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2385 EOF
2386 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2387
2388 if enabled alpha; then
2389
2390     check_cflags -mieee
2391
2392 elif enabled arm; then
2393
2394     check_cflags -marm
2395
2396     check_ld <<EOF && enable vfp_args
2397 __asm__ (".eabi_attribute 28, 1");
2398 int main(void) { return 0; }
2399 EOF
2400
2401     # We have to check if pld is a nop and disable it.
2402     check_asm pld '"pld [r0]"'
2403
2404     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2405     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2406     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2407     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2408     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2409     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2410
2411     enabled_all armv6t2 shared !pic && enable_pic
2412
2413 elif enabled ia64; then
2414
2415     # HACK: currently fails to build if .bss is > 4MB and shared libs are built
2416     enabled shared && enable_weak hardcoded_tables
2417
2418 elif enabled mips; then
2419
2420     check_asm loongson '"dmult.g $1, $2, $3"'
2421     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2422
2423 elif enabled ppc; then
2424
2425     enable local_aligned_8 local_aligned_16
2426
2427     check_asm dcbzl     '"dcbzl 0, 1"'
2428     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2429     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2430
2431     # AltiVec flags: The FSF version of GCC differs from the Apple version
2432     if enabled altivec; then
2433         check_cflags -maltivec -mabi=altivec &&
2434         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2435         check_cflags -faltivec
2436
2437         # check if our compiler supports Motorola AltiVec C API
2438         check_cc <<EOF || disable altivec
2439 $inc_altivec_h
2440 int main(void) {
2441     vector signed int v1, v2, v3;
2442     v1 = vec_add(v2,v3);
2443     return 0;
2444 }
2445 EOF
2446
2447         # check if our compiler supports braces for vector declarations
2448         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2449 $inc_altivec_h
2450 int main (void) { (vector int) {1}; return 0; }
2451 EOF
2452     fi
2453
2454 elif enabled sparc; then
2455
2456     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2457         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2458
2459 elif enabled x86; then
2460
2461     enable local_aligned_8 local_aligned_16
2462
2463     # check whether EBP is available on x86
2464     # As 'i' is stored on the stack, this program will crash
2465     # if the base pointer is used to access it because the
2466     # base pointer is cleared in the inline assembly code.
2467     check_exec_crash <<EOF && enable ebp_available
2468     volatile int i=0;
2469     __asm__ volatile (
2470         "xorl %%ebp, %%ebp"
2471     ::: "%ebp");
2472     return i;
2473 EOF
2474
2475     # check whether EBX is available on x86
2476     check_asm ebx_available '""::"b"(0)' &&
2477         check_asm ebx_available '"":::"%ebx"'
2478
2479     # check whether more than 10 operands are supported
2480     check_cc <<EOF && enable ten_operands
2481 int main(void) {
2482     int x=0;
2483     __asm__ volatile(
2484         ""
2485         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2486     );
2487     return 0;
2488 }
2489 EOF
2490
2491     # check whether binutils is new enough to compile SSSE3/MMX2
2492     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2493     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2494
2495     check_asm bswap '"bswap %%eax" ::: "%eax"'
2496
2497     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2498     enabled     x86_64        && append YASMFLAGS "-m amd64"
2499     enabled     pic           && append YASMFLAGS "-DPIC"
2500     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2501     case "$objformat" in
2502         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2503     esac
2504     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2505
2506     case "$cpu" in
2507         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2508             disable fast_clz
2509         ;;
2510     esac
2511
2512 fi
2513
2514 if check_func dlopen; then
2515     ldl=
2516 elif check_func dlopen -ldl; then
2517     ldl=-ldl
2518 fi
2519
2520 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2521 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2522
2523 check_func  fork
2524 check_func  getaddrinfo $network_extralibs
2525 check_func  gethrtime
2526 check_func  getrusage
2527 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2528 check_func  inet_aton $network_extralibs
2529 check_func  isatty
2530 check_func  ${malloc_prefix}memalign            && enable memalign
2531 check_func  mkstemp
2532 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2533 check_func  setrlimit
2534 check_func_headers io.h setmode
2535 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2536 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2537 check_func_headers windows.h GetProcessTimes
2538 check_func_headers windows.h VirtualAlloc
2539
2540 check_header conio.h
2541 check_header dlfcn.h
2542 check_header dxva2api.h
2543 check_header malloc.h
2544 check_header poll.h
2545 check_header sys/mman.h
2546 check_header sys/resource.h
2547 check_header sys/select.h
2548 check_header termios.h
2549 check_header vdpau/vdpau.h
2550 check_header vdpau/vdpau_x11.h
2551 check_header X11/extensions/XvMClib.h
2552
2553 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2554
2555 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2556      enabled_any $need_memalign ; then
2557     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2558 fi
2559
2560 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2561 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2562
2563 # check for some common methods of building with pthread support
2564 # do this before the optional library checks as some of them require pthreads
2565 if enabled pthreads; then
2566     if check_func pthread_create; then
2567         :
2568     elif check_func pthread_create -pthread; then
2569         add_cflags -pthread
2570         add_extralibs -pthread
2571     elif check_func pthread_create -pthreads; then
2572         add_cflags -pthreads
2573         add_extralibs -pthreads
2574     elif check_func pthread_create -lpthreadGC2; then
2575         add_extralibs -lpthreadGC2
2576     elif ! check_lib pthread.h pthread_create -lpthread; then
2577         die "ERROR: can't find pthreads library"
2578     fi
2579 fi
2580
2581 for thread in $THREADS_LIST; do
2582     if enabled $thread; then
2583         test -n "$thread_type" &&
2584             die "ERROR: Only one thread type must be selected." ||
2585             thread_type="$thread"
2586     fi
2587 done
2588
2589 check_lib math.h sin -lm
2590 check_lib va/va.h vaInitialize -lva
2591
2592 check_mathfunc exp2
2593 check_mathfunc exp2f
2594 check_mathfunc llrint
2595 check_mathfunc log2
2596 check_mathfunc log2f
2597 check_mathfunc lrint
2598 check_mathfunc lrintf
2599 check_mathfunc round
2600 check_mathfunc roundf
2601 check_mathfunc truncf
2602
2603 # these are off by default, so fail if requested and not available
2604 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2605 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2606                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2607                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2608 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2609 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2610 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2611 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2612 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2613 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2614 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2615 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2616 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2617                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2618 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2619 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2620 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2621 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2622                       { check_cpp_condition x264.h "X264_BUILD >= 83" ||
2623                         die "ERROR: libx264 version must be >= 0.83."; }
2624 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2625 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2626
2627 # libdc1394 check
2628 if enabled libdc1394; then
2629     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2630         enable libdc1394_2; } ||
2631     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2632         enable libdc1394_1; } ||
2633     die "ERROR: No version of libdc1394 found "
2634 fi
2635
2636 SDL_CONFIG="${cross_prefix}sdl-config"
2637 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2638     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2639     sdl_libs=$("${SDL_CONFIG}" --libs)
2640     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2641     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2642     enable sdl &&
2643     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2644 fi
2645
2646 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2647
2648 if enabled network; then
2649     check_type "sys/types.h sys/socket.h" socklen_t
2650     check_type netdb.h "struct addrinfo"
2651     check_type netinet/in.h "struct ipv6_mreq"
2652     check_type netinet/in.h "struct sockaddr_in6"
2653     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2654     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2655     # Prefer arpa/inet.h over winsock2
2656     if check_header arpa/inet.h ; then
2657         check_func closesocket
2658     elif check_header winsock2.h ; then
2659         check_func_headers winsock2.h closesocket -lws2 && \
2660             network_extralibs="-lws2" || \
2661         { check_func_headers winsock2.h closesocket -lws2_32 && \
2662             network_extralibs="-lws2_32"; }
2663         check_type ws2tcpip.h socklen_t
2664         check_type ws2tcpip.h "struct addrinfo"
2665         check_type ws2tcpip.h "struct ipv6_mreq"
2666         check_type ws2tcpip.h "struct sockaddr_in6"
2667         check_type ws2tcpip.h "struct sockaddr_storage"
2668         check_struct winsock2.h "struct sockaddr" sa_len
2669     else
2670         disable network
2671     fi
2672 fi
2673
2674 check_header linux/videodev.h
2675 check_header linux/videodev2.h
2676 check_header sys/videoio.h
2677
2678 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2679
2680 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2681 { check_header dev/bktr/ioctl_meteor.h &&
2682   check_header dev/bktr/ioctl_bt848.h; } ||
2683 { check_header machine/ioctl_meteor.h &&
2684   check_header machine/ioctl_bt848.h; } ||
2685 { check_header dev/video/meteor/ioctl_meteor.h &&
2686   check_header dev/video/bktr/ioctl_bt848.h; } ||
2687 check_header dev/ic/bt8xx.h
2688
2689 check_header sys/soundcard.h
2690 check_header soundcard.h
2691
2692 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2693
2694 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2695
2696 enabled x11grab                         &&
2697 check_header X11/Xlib.h                 &&
2698 check_header X11/extensions/XShm.h      &&
2699 check_header X11/extensions/Xfixes.h    &&
2700 check_func XOpenDisplay -lX11           &&
2701 check_func XShmCreateImage -lX11 -lXext &&
2702 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2703
2704 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2705 check_cpp_condition \
2706     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2707     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2708       disable vdpau; }
2709 fi
2710
2711 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2712
2713 # add some useful compiler flags if supported
2714 check_cflags -Wdeclaration-after-statement
2715 check_cflags -Wall
2716 check_cflags -Wno-switch
2717 check_cflags -Wdisabled-optimization
2718 check_cflags -Wpointer-arith
2719 check_cflags -Wredundant-decls
2720 check_cflags -Wno-pointer-sign
2721 check_cflags -Wcast-qual
2722 check_cflags -Wwrite-strings
2723 check_cflags -Wtype-limits
2724 check_cflags -Wundef
2725 check_cflags -Wmissing-prototypes
2726 enabled extra_warnings && check_cflags -Winline
2727
2728 # add some linker flags
2729 check_ldflags -Wl,--warn-common
2730 check_ldflags -Wl,--as-needed
2731 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'
2732 check_ldflags -Wl,-Bsymbolic
2733
2734 echo "X{};" > $TMPV
2735 test_ldflags -Wl,--version-script,$TMPV &&
2736     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2737
2738 if enabled small; then
2739     add_cflags $size_cflags
2740     optimizations="small"
2741 elif enabled optimizations; then
2742     add_cflags $speed_cflags
2743 fi
2744 check_cflags -fno-math-errno
2745 check_cflags -fno-signed-zeros
2746
2747 if enabled icc; then
2748     # Just warnings, no remarks
2749     check_cflags -w1
2750     # -wd: Disable following warnings
2751     # 144, 167, 556: -Wno-pointer-sign
2752     # 10006: ignoring unknown option -fno-signed-zeros
2753     # 10156: ignoring option '-W'; no argument required
2754     check_cflags -wd144,167,556,10006,10156
2755     # 11030: Warning unknown option --as-needed
2756     # 10156: ignoring option '-export'; no argument required
2757     check_ldflags -wd10156,11030
2758     # Allow to compile with optimizations
2759     check_ldflags -march=$cpu
2760     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2761     enable ebp_available
2762 elif enabled ccc; then
2763     # disable some annoying warnings
2764     add_cflags -msg_disable cvtu32to64
2765     add_cflags -msg_disable embedcomment
2766     add_cflags -msg_disable needconstext
2767     add_cflags -msg_disable nomainieee
2768     add_cflags -msg_disable ptrmismatch1
2769     add_cflags -msg_disable unreachcode
2770 elif enabled gcc; then
2771     check_cflags -fno-tree-vectorize
2772     check_cflags -Werror=implicit
2773     check_cflags -Werror=missing-prototypes
2774 elif enabled clang; then
2775     check_cflags -Qunused-arguments
2776 elif enabled armcc; then
2777     # 2523: use of inline assembler is deprecated
2778     add_cflags -Wrvct,--diag_suppress=2523
2779     add_cflags -Wrvct,--diag_suppress=1207
2780 elif enabled tms470; then
2781     add_cflags -pds=824 -pds=837
2782 fi
2783
2784 if enabled gprof; then
2785     add_cflags  -p
2786     add_ldflags -p
2787 fi
2788
2789 # Find out if the .align argument is a power of two or not.
2790 check_asm asmalign_pot '".align 3"'
2791
2792 enabled_any $DECODER_LIST      && enable decoders
2793 enabled_any $ENCODER_LIST      && enable encoders
2794 enabled_any $HWACCEL_LIST      && enable hwaccels
2795 enabled_any $BSF_LIST          && enable bsfs
2796 enabled_any $DEMUXER_LIST      && enable demuxers
2797 enabled_any $MUXER_LIST        && enable muxers
2798 enabled_any $FILTER_LIST       && enable filters
2799 enabled_any $INDEV_LIST        && enable indevs
2800 enabled_any $OUTDEV_LIST       && enable outdevs
2801 enabled_any $PROTOCOL_LIST     && enable protocols
2802
2803 enabled_any $THREADS_LIST      && enable threads
2804
2805 check_deps $CONFIG_LIST       \
2806            $CONFIG_EXTRA      \
2807            $HAVE_LIST         \
2808            $DECODER_LIST      \
2809            $ENCODER_LIST      \
2810            $HWACCEL_LIST      \
2811            $PARSER_LIST       \
2812            $BSF_LIST          \
2813            $DEMUXER_LIST      \
2814            $MUXER_LIST        \
2815            $FILTER_LIST       \
2816            $INDEV_LIST        \
2817            $OUTDEV_LIST       \
2818            $PROTOCOL_LIST     \
2819
2820 enabled asm || disable $ARCH_LIST $ARCH_EXT_LIST
2821
2822 echo "install prefix            $prefix"
2823 echo "source path               $source_path"
2824 echo "C compiler                $cc"
2825 echo ".align is power-of-two    $asmalign_pot"
2826 echo "ARCH                      $arch ($cpu)"
2827 if test "$build_suffix" != ""; then
2828     echo "build suffix              $build_suffix"
2829 fi
2830 if test "$extra_version" != ""; then
2831     echo "version string suffix     $extra_version"
2832 fi
2833 echo "big-endian                ${bigendian-no}"
2834 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2835 if enabled x86; then
2836     echo "yasm                      ${yasm-no}"
2837     echo "MMX enabled               ${mmx-no}"
2838     echo "MMX2 enabled              ${mmx2-no}"
2839     echo "3DNow! enabled            ${amd3dnow-no}"
2840     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2841     echo "SSE enabled               ${sse-no}"
2842     echo "SSSE3 enabled             ${ssse3-no}"
2843     echo "CMOV enabled              ${cmov-no}"
2844     echo "CMOV is fast              ${fast_cmov-no}"
2845     echo "EBX available             ${ebx_available-no}"
2846     echo "EBP available             ${ebp_available-no}"
2847     echo "10 operands supported     ${ten_operands-no}"
2848 fi
2849 if enabled arm; then
2850     echo "ARMv5TE enabled           ${armv5te-no}"
2851     echo "ARMv6 enabled             ${armv6-no}"
2852     echo "ARMv6T2 enabled           ${armv6t2-no}"
2853     echo "ARM VFP enabled           ${armvfp-no}"
2854     echo "IWMMXT enabled            ${iwmmxt-no}"
2855     echo "NEON enabled              ${neon-no}"
2856 fi
2857 if enabled mips; then
2858     echo "MMI enabled               ${mmi-no}"
2859 fi
2860 if enabled ppc; then
2861     echo "AltiVec enabled           ${altivec-no}"
2862     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2863     echo "dcbzl available           ${dcbzl-no}"
2864     echo "performance report        ${powerpc_perf-no}"
2865 fi
2866 if enabled sparc; then
2867     echo "VIS enabled               ${vis-no}"
2868 fi
2869 echo "gprof enabled             ${gprof-no}"
2870 echo "debug symbols             ${debug-no}"
2871 echo "strip symbols             ${stripping-no}"
2872 echo "optimizations             ${optimizations-no}"
2873 echo "static                    ${static-no}"
2874 echo "shared                    ${shared-no}"
2875 echo "postprocessing support    ${postproc-no}"
2876 echo "new filter support        ${avfilter-no}"
2877 echo "filters using lavformat   ${avfilter_lavf-no}"
2878 echo "network support           ${network-no}"
2879 echo "threading support         ${thread_type-no}"
2880 echo "SDL support               ${sdl-no}"
2881 echo "Sun medialib support      ${mlib-no}"
2882 echo "AVISynth enabled          ${avisynth-no}"
2883 echo "libdc1394 support         ${libdc1394-no}"
2884 echo "libdirac enabled          ${libdirac-no}"
2885 echo "libfaac enabled           ${libfaac-no}"
2886 echo "libfaad enabled           ${libfaad-no}"
2887 echo "libfaad dlopened          ${libfaadbin-no}"
2888 echo "libgsm enabled            ${libgsm-no}"
2889 echo "libmp3lame enabled        ${libmp3lame-no}"
2890 echo "libnut enabled            ${libnut-no}"
2891 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2892 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2893 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2894 echo "libschroedinger enabled   ${libschroedinger-no}"
2895 echo "libspeex enabled          ${libspeex-no}"
2896 echo "libtheora enabled         ${libtheora-no}"
2897 echo "libvorbis enabled         ${libvorbis-no}"
2898 echo "libx264 enabled           ${libx264-no}"
2899 echo "libxvid enabled           ${libxvid-no}"
2900 echo "zlib enabled              ${zlib-no}"
2901 echo "bzlib enabled             ${bzlib-no}"
2902 echo
2903
2904 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2905     echo "Enabled ${type}s:"
2906     eval list=\$$(toupper $type)_LIST
2907     for part in $list; do
2908         enabled $part && echo ${part%_*}
2909     done | sort | pr -3 -t
2910     echo
2911 done
2912
2913 license="LGPL version 2.1 or later"
2914 if enabled nonfree; then
2915     license="nonfree and unredistributable"
2916 elif enabled gplv3; then
2917     license="GPL version 3 or later"
2918 elif enabled lgplv3; then
2919     license="LGPL version 3 or later"
2920 elif enabled gpl; then
2921     license="GPL version 2 or later"
2922 fi
2923
2924 echo "License: $license"
2925
2926 echo "Creating config.mak and config.h..."
2927
2928 # build tree in object directory if source path is different from current one
2929 if enabled source_path_used; then
2930     DIRS="
2931         doc
2932         libavcodec
2933         libavcodec/$arch
2934         libavdevice
2935         libavfilter
2936         libavformat
2937         libavutil
2938         libavutil/$arch
2939         libpostproc
2940         libswscale
2941         libswscale/$arch
2942         tests
2943         tools
2944     "
2945     FILES="
2946         Makefile
2947         common.mak
2948         subdir.mak
2949         doc/texi2pod.pl
2950         libavcodec/Makefile
2951         libavcodec/${arch}/Makefile
2952         libavdevice/Makefile
2953         libavfilter/Makefile
2954         libavformat/Makefile
2955         libavutil/Makefile
2956         libpostproc/Makefile
2957         libswscale/Makefile
2958     "
2959     map 'mkdir -p $v' $DIRS;
2960     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
2961 fi
2962
2963 enabled stripping || strip="echo skipping strip"
2964
2965 cat > config.mak <<EOF
2966 # Automatically generated by configure - do not modify!
2967 ifndef FFMPEG_CONFIG_MAK
2968 FFMPEG_CONFIG_MAK=1
2969 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2970 prefix=$prefix
2971 LIBDIR=\$(DESTDIR)$libdir
2972 SHLIBDIR=\$(DESTDIR)$shlibdir
2973 INCDIR=\$(DESTDIR)$incdir
2974 BINDIR=\$(DESTDIR)$bindir
2975 DATADIR=\$(DESTDIR)$datadir
2976 MANDIR=\$(DESTDIR)$mandir
2977 SRC_PATH="$source_path"
2978 SRC_PATH_BARE=$source_path
2979 BUILD_ROOT="$PWD"
2980 ARCH=$arch
2981 CC=$cc
2982 AS=$as
2983 LD=$ld
2984 DEPCC=$dep_cc
2985 YASM=$yasmexe
2986 YASMDEP=$yasmexe
2987 AR=$ar
2988 RANLIB=$ranlib
2989 CP=cp -p
2990 LN_S=$ln_s
2991 STRIP=$strip
2992 CPPFLAGS=$CPPFLAGS
2993 CFLAGS=$CFLAGS
2994 ASFLAGS=$ASFLAGS
2995 CC_O=$CC_O
2996 LDFLAGS=$LDFLAGS
2997 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2998 SHFLAGS=$SHFLAGS
2999 YASMFLAGS=$YASMFLAGS
3000 BUILDSUF=$build_suffix
3001 FULLNAME=$FULLNAME
3002 LIBPREF=$LIBPREF
3003 LIBSUF=$LIBSUF
3004 LIBNAME=$LIBNAME
3005 SLIBPREF=$SLIBPREF
3006 SLIBSUF=$SLIBSUF
3007 EXESUF=$EXESUF
3008 EXTRA_VERSION=$extra_version
3009 DEPFLAGS=$DEPFLAGS
3010 CCDEP=$CCDEP
3011 ASDEP=$ASDEP
3012 CC_DEPFLAGS=$CC_DEPFLAGS
3013 AS_DEPFLAGS=$AS_DEPFLAGS
3014 HOSTCC=$host_cc
3015 HOSTCFLAGS=$host_cflags
3016 HOSTEXESUF=$HOSTEXESUF
3017 HOSTLDFLAGS=$host_ldflags
3018 HOSTLIBS=$host_libs
3019 TARGET_EXEC=$target_exec
3020 TARGET_PATH=$target_path
3021 SDL_LIBS=$sdl_libs
3022 SDL_CFLAGS=$sdl_cflags
3023 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3024 EXTRALIBS=$extralibs
3025 INSTALL=install
3026 LIBTARGET=${LIBTARGET}
3027 SLIBNAME=${SLIBNAME}
3028 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3029 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3030 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3031 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3032 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3033 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3034 SAMPLES=$samples
3035 EOF
3036
3037 get_version(){
3038     name=$1
3039     file=$source_path/$2
3040     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3041     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3042     lcname=$(tolower $name)
3043     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3044     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3045 }
3046
3047 get_version LIBSWSCALE  libswscale/swscale.h
3048 get_version LIBPOSTPROC libpostproc/postprocess.h
3049 get_version LIBAVCODEC  libavcodec/avcodec.h
3050 get_version LIBAVDEVICE libavdevice/avdevice.h
3051 get_version LIBAVFORMAT libavformat/avformat.h
3052 get_version LIBAVUTIL   libavutil/avutil.h
3053 get_version LIBAVFILTER libavfilter/avfilter.h
3054
3055 enabled asmalign_pot || align_shift="1 <<"
3056
3057 cat > $TMPH <<EOF
3058 /* Automatically generated by configure - do not modify! */
3059 #ifndef FFMPEG_CONFIG_H
3060 #define FFMPEG_CONFIG_H
3061 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3062 #define FFMPEG_LICENSE "$(c_escape $license)"
3063 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3064 #define CC_TYPE "$cc_type"
3065 #define CC_VERSION $cc_version
3066 #define restrict $_restrict
3067 #define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
3068 #define EXTERN_PREFIX "${extern_prefix}"
3069 #define EXTERN_ASM ${extern_prefix}
3070 EOF
3071
3072 test -n "$malloc_prefix" &&
3073     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3074
3075 if enabled small || disabled optimizations; then
3076     echo "#undef  av_always_inline"  >> $TMPH
3077     echo "#define av_always_inline"  >> $TMPH
3078 fi
3079
3080 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3081 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3082 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3083                                       $CONFIG_EXTRA      \
3084                                       $DECODER_LIST      \
3085                                       $ENCODER_LIST      \
3086                                       $HWACCEL_LIST      \
3087                                       $PARSER_LIST       \
3088                                       $BSF_LIST          \
3089                                       $DEMUXER_LIST      \
3090                                       $MUXER_LIST        \
3091                                       $FILTER_LIST       \
3092                                       $PROTOCOL_LIST     \
3093                                       $INDEV_LIST        \
3094                                       $OUTDEV_LIST       \
3095
3096 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3097 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3098
3099 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3100 cp_if_changed $TMPH config.h
3101
3102 cat > $TMPH <<EOF
3103 /* Generated by ffconf */
3104 #ifndef AVUTIL_AVCONFIG_H
3105 #define AVUTIL_AVCONFIG_H
3106 EOF
3107
3108 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3109
3110 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3111
3112 cp_if_changed $TMPH libavutil/avconfig.h
3113
3114 # build pkg-config files
3115
3116 pkgconfig_generate(){
3117 name=$1
3118 shortname=${name#lib}${build_suffix}
3119 comment=$2
3120 version=$3
3121 libs=$4
3122 requires=$5
3123 cat <<EOF > $name/$name.pc
3124 prefix=$prefix
3125 exec_prefix=\${prefix}
3126 libdir=$libdir
3127 includedir=$incdir
3128
3129 Name: $name
3130 Description: $comment
3131 Version: $version
3132 Requires: $(enabled shared || echo $requires)
3133 Requires.private: $(enabled shared && echo $requires)
3134 Conflicts:
3135 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3136 Libs.private: $(enabled shared && echo $libs)
3137 Cflags: -I\${includedir}
3138 EOF
3139 cat <<EOF > $name/$name-uninstalled.pc
3140 prefix=
3141 exec_prefix=
3142 libdir=\${pcfiledir}
3143 includedir=${source_path}
3144
3145 Name: $name
3146 Description: $comment
3147 Version: $version
3148 Requires: $requires
3149 Conflicts:
3150 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3151 Cflags: -I\${includedir}
3152 EOF
3153 }
3154
3155 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3156 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3157 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3158 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3159 enabled avfilter &&
3160     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3161 enabled postproc &&
3162     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3163 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"