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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avcore         disable libavcore build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable GPLed postprocessing support [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --disable-vaapi          disable VAAPI code
 112   --disable-vdpau          disable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libgsm          enable GSM support via libgsm [no]
 172   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 173   --enable-libnut          enable NUT (de)muxing via libnut,
 174                            native (de)muxer exists [no]
 175   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 176   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 177   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 178   --enable-libspeex        enable Speex decoding via libspeex [no]
 179   --enable-libtheora       enable Theora encoding via libtheora [no]
 180   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 181                            native implementation exists [no]
 182   --enable-libvpx          enable VP8 support via libvpx [no]
 183   --enable-libx264         enable H.264 encoding via x264 [no]
 184   --enable-libxavs         enable AVS encoding via xavs [no]
 185   --enable-libxvid         enable Xvid encoding via xvidcore,
 186                            native MPEG-4/Xvid encoder exists [no]
 187   --enable-mlib            enable Sun medialib [no]
 188   --enable-zlib            enable zlib [autodetect]
 189
 190 Advanced options (experts only):
 191   --source-path=PATH       path to source code [$source_path]
 192   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 193   --enable-cross-compile   assume a cross-compiler is used
 194   --sysroot=PATH           root of cross-build tree
 195   --sysinclude=PATH        location of cross-build system headers
 196   --target-os=OS           compiler targets OS [$target_os]
 197   --target-exec=CMD        command to run executables on target
 198   --target-path=DIR        path to view of build directory on target
 199   --nm=NM                  use nm tool
 200   --ar=AR                  use archive tool AR [$ar_default]
 201   --as=AS                  use assembler AS [$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 [$arch]
 214   --cpu=CPU                select the minimum required CPU (affects
 215                            instruction selection, may crash on older CPUs)
 216   --disable-asm            disable all assembler optimizations
 217   --disable-altivec        disable AltiVec optimizations
 218   --disable-amd3dnow       disable 3DNow! optimizations
 219   --disable-amd3dnowext    disable 3DNow! extended optimizations
 220   --disable-mmx            disable MMX optimizations
 221   --disable-mmx2           disable MMX2 optimizations
 222   --disable-sse            disable SSE optimizations
 223   --disable-ssse3          disable SSSE3 optimizations
 224   --disable-armv5te        disable armv5te optimizations
 225   --disable-armv6          disable armv6 optimizations
 226   --disable-armv6t2        disable armv6t2 optimizations
 227   --disable-armvfp         disable ARM VFP optimizations
 228   --disable-iwmmxt         disable iwmmxt optimizations
 229   --disable-mmi            disable MMI optimizations
 230   --disable-neon           disable neon optimizations
 231   --disable-vis            disable VIS optimizations
 232   --disable-yasm           disable use of yasm assembler
 233   --enable-pic             build position-independent code
 234   --malloc-prefix=PFX      prefix malloc and related names with PFX
 235   --enable-sram            allow use of on-chip SRAM
 236
 237 Developer options (useful when working on FFmpeg itself):
 238   --disable-debug          disable debugging symbols
 239   --enable-debug=LEVEL     set the debug level [$debuglevel]
 240   --disable-optimizations  disable compiler optimizations
 241   --enable-extra-warnings  enable more compiler warnings
 242   --disable-stripping      disable stripping of executables and shared libraries
 243   --samples=PATH           location of test samples for FATE
 244
 245 NOTE: Object files are built at the place where configure is launched.
 246 EOF
 247   exit 0
 248 }
 249
 250 quotes='""'
 251
 252 log(){
 253     echo "$@" >> $logfile
 254 }
 255
 256 log_file(){
 257     log BEGIN $1
 258     pr -n -t $1 >> $logfile
 259     log END $1
 260 }
 261
 262 echolog(){
 263     log "$@"
 264     echo "$@"
 265 }
 266
 267 warn(){
 268     log "WARNING: $*"
 269     WARNINGS="${WARNINGS}WARNING: $*\n"
 270 }
 271
 272 die(){
 273     echolog "$@"
 274     cat <<EOF
 275
 276 If you think configure made a mistake, make sure you are using the latest
 277 version from SVN.  If the latest version fails, report the problem to the
 278 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 279 EOF
 280     if disabled logging; then
 281         cat <<EOF
 282 Rerun configure with logging enabled (do not use --disable-logging), and
 283 include the log this produces with your report.
 284 EOF
 285     else
 286 cat <<EOF
 287 Include the log file "$logfile" produced by configure as this will help
 288 solving the problem.
 289 EOF
 290     fi
 291     exit 1
 292 }
 293
 294 # Avoid locale weirdness, besides we really just want to translate ASCII.
 295 toupper(){
 296     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 297 }
 298
 299 tolower(){
 300     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 301 }
 302
 303 c_escape(){
 304     echo "$*" | sed 's/["\\]/\\\0/g'
 305 }
 306
 307 sh_quote(){
 308     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 309     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 310     echo "$v"
 311 }
 312
 313 filter(){
 314     pat=$1
 315     shift
 316     for v; do
 317         eval "case $v in $pat) echo $v ;; esac"
 318     done
 319 }
 320
 321 map(){
 322     m=$1
 323     shift
 324     for v; do eval $m; done
 325 }
 326
 327 set_all(){
 328     value=$1
 329     shift
 330     for var in $*; do
 331         eval $var=$value
 332     done
 333 }
 334
 335 set_weak(){
 336     value=$1
 337     shift
 338     for var; do
 339         eval : \${$var:=$value}
 340     done
 341 }
 342
 343 pushvar(){
 344     for var in $*; do
 345         eval level=\${${var}_level:=0}
 346         eval ${var}_${level}="\$$var"
 347         eval ${var}_level=$(($level+1))
 348     done
 349 }
 350
 351 popvar(){
 352     for var in $*; do
 353         eval level=\${${var}_level:-0}
 354         test $level = 0 && continue
 355         eval level=$(($level-1))
 356         eval $var="\${${var}_${level}}"
 357         eval ${var}_level=$level
 358         eval unset ${var}_${level}
 359     done
 360 }
 361
 362 enable(){
 363     set_all yes $*
 364 }
 365
 366 disable(){
 367     set_all no $*
 368 }
 369
 370 enable_weak(){
 371     set_weak yes $*
 372 }
 373
 374 disable_weak(){
 375     set_weak no $*
 376 }
 377
 378 enable_safe(){
 379     for var; do
 380         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 381     done
 382 }
 383
 384 disable_safe(){
 385     for var; do
 386         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 387     done
 388 }
 389
 390 do_enable_deep(){
 391     for var; do
 392         enabled $var && continue
 393         eval sel="\$${var}_select"
 394         eval sgs="\$${var}_suggest"
 395         pushvar var sgs
 396         enable_deep $sel
 397         popvar sgs
 398         enable_deep_weak $sgs
 399         popvar var
 400     done
 401 }
 402
 403 enable_deep(){
 404     do_enable_deep $*
 405     enable $*
 406 }
 407
 408 enable_deep_weak(){
 409     do_enable_deep $*
 410     enable_weak $*
 411 }
 412
 413 enabled(){
 414     test "${1#!}" = "$1" && op== || op=!=
 415     eval test "x\$${1#!}" $op "xyes"
 416 }
 417
 418 disabled(){
 419     test "${1#!}" = "$1" && op== || op=!=
 420     eval test "x\$${1#!}" $op "xno"
 421 }
 422
 423 enabled_all(){
 424     for opt; do
 425         enabled $opt || return 1
 426     done
 427 }
 428
 429 disabled_all(){
 430     for opt; do
 431         disabled $opt || return 1
 432     done
 433 }
 434
 435 enabled_any(){
 436     for opt; do
 437         enabled $opt && return 0
 438     done
 439 }
 440
 441 disabled_any(){
 442     for opt; do
 443         disabled $opt && return 0
 444     done
 445     return 1
 446 }
 447
 448 set_default(){
 449     for opt; do
 450         eval : \${$opt:=\$${opt}_default}
 451     done
 452 }
 453
 454 is_in(){
 455     value=$1
 456     shift
 457     for var in $*; do
 458         [ $var = $value ] && return 0
 459     done
 460     return 1
 461 }
 462
 463 check_deps(){
 464     for cfg; do
 465         cfg="${cfg#!}"
 466         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 467         disabled ${cfg}_checking && continue
 468         enable ${cfg}_checking
 469
 470         eval dep_all="\$${cfg}_deps"
 471         eval dep_any="\$${cfg}_deps_any"
 472         eval dep_sel="\$${cfg}_select"
 473         eval dep_sgs="\$${cfg}_suggest"
 474         eval dep_ifa="\$${cfg}_if"
 475         eval dep_ifn="\$${cfg}_if_any"
 476
 477         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 478         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 479         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 480
 481         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 482         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 483         enabled_all  $dep_all || disable $cfg
 484         enabled_any  $dep_any || disable $cfg
 485         disabled_any $dep_sel && disable $cfg
 486
 487         if enabled $cfg; then
 488             eval dep_extralibs="\$${cfg}_extralibs"
 489             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 490             enable_deep $dep_sel
 491             enable_deep_weak $dep_sgs
 492         fi
 493
 494         disable ${cfg}_checking
 495     done
 496 }
 497
 498 print_config(){
 499     pfx=$1
 500     header=$2
 501     makefile=$3
 502     shift 3
 503     for cfg; do
 504         ucname="$(toupper $cfg)"
 505         if enabled $cfg; then
 506             echo "#define ${pfx}${ucname} 1" >> $header
 507             echo "${pfx}${ucname}=yes" >> $makefile
 508         else
 509             echo "#define ${pfx}${ucname} 0" >> $header
 510             echo "!${pfx}${ucname}=yes" >> $makefile
 511         fi
 512     done
 513 }
 514
 515 print_enabled(){
 516     test "$1" = -n && end=" " && shift || end="\n"
 517     suf=$1
 518     shift
 519     for v; do
 520         enabled $v && printf "%s$end" ${v%$suf};
 521     done
 522 }
 523
 524 append(){
 525     var=$1
 526     shift
 527     eval "$var=\"\$$var $*\""
 528 }
 529
 530 prepend(){
 531     var=$1
 532     shift
 533     eval "$var=\"$* \$$var\""
 534 }
 535
 536 add_cppflags(){
 537     append CPPFLAGS $($filter_cppflags "$@")
 538 }
 539
 540 add_cflags(){
 541     append CFLAGS $($filter_cflags "$@")
 542 }
 543
 544 add_asflags(){
 545     append ASFLAGS $($filter_asflags "$@")
 546 }
 547
 548 add_ldflags(){
 549     append LDFLAGS "$@"
 550 }
 551
 552 add_extralibs(){
 553     prepend extralibs "$@"
 554 }
 555
 556 check_cmd(){
 557     log "$@"
 558     "$@" >> $logfile 2>&1
 559 }
 560
 561 check_cc(){
 562     log check_cc "$@"
 563     cat > $TMPC
 564     log_file $TMPC
 565     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 566 }
 567
 568 check_cpp(){
 569     log check_cpp "$@"
 570     cat > $TMPC
 571     log_file $TMPC
 572     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 573 }
 574
 575 check_as(){
 576     log check_as "$@"
 577     cat > $TMPC
 578     log_file $TMPC
 579     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 580 }
 581
 582 check_asm(){
 583     log check_asm "$@"
 584     name="$1"
 585     code="$2"
 586     shift 2
 587     disable $name
 588     check_as "$@" <<EOF && enable $name
 589 void foo(void){ __asm__ volatile($code); }
 590 EOF
 591 }
 592
 593 check_yasm(){
 594     log check_yasm "$@"
 595     echo "$1" > $TMPS
 596     log_file $TMPS
 597     shift 1
 598     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 599 }
 600
 601 check_ld(){
 602     log check_ld "$@"
 603     flags=''
 604     libs=''
 605     for f; do
 606         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 607     done
 608     check_cc $($filter_cflags $flags) || return
 609     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 610 }
 611
 612 check_cppflags(){
 613     log check_cppflags "$@"
 614     set -- $($filter_cppflags "$@")
 615     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 616 int x;
 617 EOF
 618 }
 619
 620 check_cflags(){
 621     log check_cflags "$@"
 622     set -- $($filter_cflags "$@")
 623     check_cc "$@" <<EOF && append CFLAGS "$@"
 624 int x;
 625 EOF
 626 }
 627
 628 test_ldflags(){
 629     log test_ldflags "$@"
 630     check_ld "$@" <<EOF
 631 int main(void){ return 0; }
 632 EOF
 633 }
 634
 635 check_ldflags(){
 636     log check_ldflags "$@"
 637     test_ldflags "$@" && add_ldflags "$@"
 638 }
 639
 640 check_header(){
 641     log check_header "$@"
 642     header=$1
 643     shift
 644     disable_safe $header
 645     check_cpp "$@" <<EOF && enable_safe $header
 646 #include <$header>
 647 int x;
 648 EOF
 649 }
 650
 651 check_func(){
 652     log check_func "$@"
 653     func=$1
 654     shift
 655     disable $func
 656     check_ld "$@" <<EOF && enable $func
 657 extern int $func();
 658 int main(void){ $func(); }
 659 EOF
 660 }
 661
 662 check_mathfunc(){
 663     log check_mathfunc "$@"
 664     func=$1
 665     shift
 666     disable $func
 667     check_ld "$@" <<EOF && enable $func
 668 #include <math.h>
 669 float foo(float f) { return $func(f); }
 670 int main(void){ return 0; }
 671 EOF
 672 }
 673
 674 check_func_headers(){
 675     log check_func_headers "$@"
 676     headers=$1
 677     func=$2
 678     shift 2
 679     disable $func
 680     incs=""
 681     for hdr in $headers; do
 682         incs="$incs
 683 #include <$hdr>"
 684     done
 685     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 686 $incs
 687 int main(int argc, char **argv){
 688     return (long) $func;
 689 }
 690 EOF
 691 }
 692
 693 check_cpp_condition(){
 694     log check_cpp_condition "$@"
 695     header=$1
 696     condition=$2
 697     shift 2
 698     check_cpp $($filter_cppflags "$@") <<EOF
 699 #include <$header>
 700 #if !($condition)
 701 #error "unsatisfied condition: $condition"
 702 #endif
 703 EOF
 704 }
 705
 706 check_lib(){
 707     log check_lib "$@"
 708     header="$1"
 709     func="$2"
 710     shift 2
 711     check_header $header && check_func $func "$@" && add_extralibs "$@"
 712 }
 713
 714 check_lib2(){
 715     log check_lib2 "$@"
 716     headers="$1"
 717     func="$2"
 718     shift 2
 719     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 720 }
 721
 722 check_exec(){
 723     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 724 }
 725
 726 check_exec_crash(){
 727     code=$(cat)
 728
 729     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 730     # are safe but may not be available everywhere.  Thus we use
 731     # raise(SIGTERM) instead.  The check is run in a subshell so we
 732     # can redirect the "Terminated" message from the shell.  SIGBUS
 733     # is not defined by standard C so it is used conditionally.
 734
 735     (check_exec "$@") >> $logfile 2>&1 <<EOF
 736 #include <signal.h>
 737 static void sighandler(int sig){
 738     raise(SIGTERM);
 739 }
 740 int main(void){
 741     signal(SIGILL, sighandler);
 742     signal(SIGFPE, sighandler);
 743     signal(SIGSEGV, sighandler);
 744 #ifdef SIGBUS
 745     signal(SIGBUS, sighandler);
 746 #endif
 747     { $code }
 748 }
 749 EOF
 750 }
 751
 752 check_type(){
 753     log check_type "$@"
 754     headers=$1
 755     type=$2
 756     shift 2
 757     disable_safe "$type"
 758     incs=""
 759     for hdr in $headers; do
 760         incs="$incs
 761 #include <$hdr>"
 762     done
 763     check_cc "$@" <<EOF && enable_safe "$type"
 764 $incs
 765 $type v;
 766 EOF
 767 }
 768
 769 check_struct(){
 770     log check_type "$@"
 771     headers=$1
 772     struct=$2
 773     member=$3
 774     shift 3
 775     disable_safe "${struct}_${member}"
 776     incs=""
 777     for hdr in $headers; do
 778         incs="$incs
 779 #include <$hdr>"
 780     done
 781     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 782 $incs
 783 const void *p = &(($struct *)0)->$member;
 784 EOF
 785 }
 786
 787 require(){
 788     name="$1"
 789     header="$2"
 790     func="$3"
 791     shift 3
 792     check_lib $header $func "$@" || die "ERROR: $name not found"
 793 }
 794
 795 require2(){
 796     name="$1"
 797     headers="$2"
 798     func="$3"
 799     shift 3
 800     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 801 }
 802
 803 check_host_cc(){
 804     log check_host_cc "$@"
 805     cat > $TMPC
 806     log_file $TMPC
 807     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 808 }
 809
 810 check_host_cflags(){
 811     log check_host_cflags "$@"
 812     check_host_cc "$@" <<EOF && append host_cflags "$@"
 813 int x;
 814 EOF
 815 }
 816
 817 apply(){
 818     file=$1
 819     shift
 820     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 821 }
 822
 823 cp_if_changed(){
 824     cmp -s "$1" "$2" &&
 825         echo "$2 is unchanged" ||
 826         cp -f "$1" "$2"
 827 }
 828
 829 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 830 # system-dependent things.
 831
 832 COMPONENT_LIST="
 833     bsfs
 834     decoders
 835     demuxers
 836     encoders
 837     filters
 838     hwaccels
 839     indevs
 840     muxers
 841     outdevs
 842     parsers
 843     protocols
 844 "
 845
 846 CONFIG_LIST="
 847     $COMPONENT_LIST
 848     aandct
 849     avcodec
 850     avcore
 851     avdevice
 852     avfilter
 853     avformat
 854     avisynth
 855     bzlib
 856     dct
 857     doc
 858     dwt
 859     dxva2
 860     fastdiv
 861     ffmpeg
 862     ffplay
 863     ffprobe
 864     ffserver
 865     fft
 866     golomb
 867     gpl
 868     gray
 869     h264dsp
 870     h264pred
 871     hardcoded_tables
 872     huffman
 873     libdc1394
 874     libdirac
 875     libfaac
 876     libgsm
 877     libmp3lame
 878     libnut
 879     libopencore_amrnb
 880     libopencore_amrwb
 881     libopenjpeg
 882     librtmp
 883     libschroedinger
 884     libspeex
 885     libtheora
 886     libvorbis
 887     libvpx
 888     libx264
 889     libxavs
 890     libxvid
 891     lpc
 892     lsp
 893     mdct
 894     memalign_hack
 895     mlib
 896     mpegaudio_hp
 897     network
 898     nonfree
 899     pic
 900     postproc
 901     rdft
 902     runtime_cpudetect
 903     shared
 904     small
 905     sram
 906     static
 907     swscale
 908     swscale_alpha
 909     vaapi
 910     vdpau
 911     version3
 912     x11grab
 913     zlib
 914 "
 915
 916 THREADS_LIST='
 917     pthreads
 918     w32threads
 919 '
 920
 921 ARCH_LIST='
 922     alpha
 923     arm
 924     avr32
 925     avr32_ap
 926     avr32_uc
 927     bfin
 928     ia64
 929     m68k
 930     mips
 931     mips64
 932     parisc
 933     ppc
 934     ppc64
 935     s390
 936     sh4
 937     sparc
 938     sparc64
 939     tomi
 940     x86
 941     x86_32
 942     x86_64
 943 '
 944
 945 ARCH_EXT_LIST='
 946     altivec
 947     amd3dnow
 948     amd3dnowext
 949     armv5te
 950     armv6
 951     armv6t2
 952     armvfp
 953     iwmmxt
 954     mmi
 955     mmx
 956     mmx2
 957     neon
 958     ppc4xx
 959     sse
 960     ssse3
 961     vis
 962 '
 963
 964 HAVE_LIST_PUB='
 965     bigendian
 966     fast_unaligned
 967 '
 968
 969 HAVE_LIST="
 970     $ARCH_EXT_LIST
 971     $HAVE_LIST_PUB
 972     $THREADS_LIST
 973     alsa_asoundlib_h
 974     altivec_h
 975     arpa_inet_h
 976     attribute_may_alias
 977     attribute_packed
 978     bswap
 979     closesocket
 980     cmov
 981     conio_h
 982     dcbzl
 983     dev_bktr_ioctl_bt848_h
 984     dev_bktr_ioctl_meteor_h
 985     dev_ic_bt8xx_h
 986     dev_video_meteor_ioctl_meteor_h
 987     dev_video_bktr_ioctl_bt848_h
 988     dlfcn_h
 989     dlopen
 990     dos_paths
 991     ebp_available
 992     ebx_available
 993     exp2
 994     exp2f
 995     fast_64bit
 996     fast_clz
 997     fast_cmov
 998     fcntl
 999     fork
1000     getaddrinfo
1001     gethrtime
1002     GetProcessMemoryInfo
1003     GetProcessTimes
1004     getrusage
1005     gnu_as
1006     struct_rusage_ru_maxrss
1007     ibm_asm
1008     inet_aton
1009     inline_asm
1010     isatty
1011     ldbrx
1012     libdc1394_1
1013     libdc1394_2
1014     llrint
1015     llrintf
1016     local_aligned_16
1017     local_aligned_8
1018     log2
1019     log2f
1020     loongson
1021     lrint
1022     lrintf
1023     lzo1x_999_compress
1024     machine_ioctl_bt848_h
1025     machine_ioctl_meteor_h
1026     malloc_h
1027     memalign
1028     mkstemp
1029     pld
1030     posix_memalign
1031     round
1032     roundf
1033     sdl
1034     sdl_video_size
1035     setmode
1036     socklen_t
1037     soundcard_h
1038     poll_h
1039     setrlimit
1040     strerror_r
1041     struct_addrinfo
1042     struct_ipv6_mreq
1043     struct_sockaddr_in6
1044     struct_sockaddr_sa_len
1045     struct_sockaddr_storage
1046     symver
1047     symver_gnu_asm
1048     symver_asm_label
1049     sys_mman_h
1050     sys_resource_h
1051     sys_select_h
1052     sys_soundcard_h
1053     sys_videoio_h
1054     ten_operands
1055     termios_h
1056     threads
1057     truncf
1058     vfp_args
1059     VirtualAlloc
1060     winsock2_h
1061     xform_asm
1062     yasm
1063 "
1064
1065 # options emitted with CONFIG_ prefix but not available on command line
1066 CONFIG_EXTRA="
1067     avutil
1068     gplv3
1069     lgplv3
1070 "
1071
1072 CMDLINE_SELECT="
1073     $ARCH_EXT_LIST
1074     $CONFIG_LIST
1075     $THREADS_LIST
1076     asm
1077     cross_compile
1078     debug
1079     extra_warnings
1080     logging
1081     optimizations
1082     stripping
1083     yasm
1084 "
1085
1086 PATHS_LIST='
1087     bindir
1088     datadir
1089     incdir
1090     libdir
1091     mandir
1092     prefix
1093     shlibdir
1094 '
1095
1096 CMDLINE_SET="
1097     $PATHS_LIST
1098     ar
1099     arch
1100     as
1101     build_suffix
1102     cc
1103     cpu
1104     cross_prefix
1105     dep_cc
1106     extra_version
1107     host_cc
1108     host_cflags
1109     host_ldflags
1110     host_libs
1111     host_os
1112     ld
1113     logfile
1114     malloc_prefix
1115     nm
1116     samples
1117     source_path
1118     strip
1119     sysinclude
1120     sysroot
1121     target_exec
1122     target_os
1123     target_path
1124 "
1125
1126 CMDLINE_APPEND="
1127     extra_cflags
1128 "
1129
1130 # code dependency declarations
1131
1132 # architecture extensions
1133
1134 armv5te_deps="arm"
1135 armv6_deps="arm"
1136 armv6t2_deps="arm"
1137 armvfp_deps="arm"
1138 iwmmxt_deps="arm"
1139 neon_deps="arm"
1140
1141 mmi_deps="mips"
1142
1143 altivec_deps="ppc"
1144 ppc4xx_deps="ppc"
1145
1146 vis_deps="sparc"
1147
1148 x86_64_suggest="cmov fast_cmov"
1149 amd3dnow_deps="mmx"
1150 amd3dnowext_deps="amd3dnow"
1151 mmx_deps="x86"
1152 mmx2_deps="mmx"
1153 sse_deps="mmx"
1154 ssse3_deps="sse"
1155
1156 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1157 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1158 fast_unaligned_if_any="armv6 ppc x86"
1159
1160 need_memalign="altivec neon sse"
1161 inline_asm_deps="!tms470"
1162
1163 symver_if_any="symver_asm_label symver_gnu_asm"
1164
1165 # subsystems
1166 dct_select="rdft"
1167 mdct_select="fft"
1168 rdft_select="fft"
1169
1170 # decoders / encoders / hardware accelerators
1171 aac_decoder_select="mdct rdft"
1172 aac_encoder_select="mdct"
1173 ac3_decoder_select="mdct ac3_parser"
1174 alac_encoder_select="lpc"
1175 amrnb_decoder_select="lsp"
1176 atrac1_decoder_select="mdct"
1177 atrac3_decoder_select="mdct"
1178 binkaudio_dct_decoder_select="mdct rdft dct"
1179 binkaudio_rdft_decoder_select="mdct rdft"
1180 cavs_decoder_select="golomb"
1181 cook_decoder_select="mdct"
1182 cscd_decoder_suggest="zlib"
1183 dca_decoder_select="mdct"
1184 dnxhd_encoder_select="aandct"
1185 dxa_decoder_select="zlib"
1186 eac3_decoder_select="ac3_decoder"
1187 eamad_decoder_select="aandct"
1188 eatgq_decoder_select="aandct"
1189 eatqi_decoder_select="aandct"
1190 ffv1_decoder_select="golomb"
1191 flac_decoder_select="golomb"
1192 flac_encoder_select="golomb lpc"
1193 flashsv_decoder_select="zlib"
1194 flashsv_encoder_select="zlib"
1195 flv_decoder_select="h263_decoder"
1196 flv_encoder_select="h263_encoder"
1197 fraps_decoder_select="huffman"
1198 h261_encoder_select="aandct"
1199 h263_decoder_select="h263_parser"
1200 h263_encoder_select="aandct"
1201 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1202 h263i_decoder_select="h263_decoder"
1203 h263p_encoder_select="h263_encoder"
1204 h264_decoder_select="golomb h264dsp h264pred"
1205 h264_dxva2_hwaccel_deps="dxva2api_h"
1206 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1207 h264_vaapi_hwaccel_select="vaapi"
1208 h264_vdpau_decoder_select="vdpau h264_decoder"
1209 imc_decoder_select="fft mdct"
1210 jpegls_decoder_select="golomb"
1211 jpegls_encoder_select="golomb"
1212 ljpeg_encoder_select="aandct"
1213 loco_decoder_select="golomb"
1214 mjpeg_encoder_select="aandct"
1215 mlp_decoder_select="mlp_parser"
1216 mp1float_decoder_select="dct"
1217 mp2float_decoder_select="dct"
1218 mp3adufloat_decoder_select="dct"
1219 mp3float_decoder_select="dct"
1220 mp3on4float_decoder_select="dct"
1221 mpeg1video_encoder_select="aandct"
1222 mpeg2video_encoder_select="aandct"
1223 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1224 mpeg4_encoder_select="h263_encoder"
1225 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1226 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1227 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1228 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1229 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1230 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1231 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1232 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1233 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1234 msmpeg4v1_decoder_select="h263_decoder"
1235 msmpeg4v1_encoder_select="h263_encoder"
1236 msmpeg4v2_decoder_select="h263_decoder"
1237 msmpeg4v2_encoder_select="h263_encoder"
1238 msmpeg4v3_decoder_select="h263_decoder"
1239 msmpeg4v3_encoder_select="h263_encoder"
1240 nellymoser_decoder_select="mdct"
1241 nellymoser_encoder_select="mdct"
1242 png_decoder_select="zlib"
1243 png_encoder_select="zlib"
1244 qcelp_decoder_select="lsp"
1245 qdm2_decoder_select="mdct rdft"
1246 ra_144_encoder_select="lpc"
1247 rv10_decoder_select="h263_decoder"
1248 rv10_encoder_select="h263_encoder"
1249 rv20_decoder_select="h263_decoder"
1250 rv20_encoder_select="h263_encoder"
1251 rv30_decoder_select="golomb h264pred"
1252 rv40_decoder_select="golomb h264pred"
1253 shorten_decoder_select="golomb"
1254 sipr_decoder_select="lsp"
1255 snow_decoder_select="dwt"
1256 snow_encoder_select="aandct dwt"
1257 sonic_decoder_select="golomb"
1258 sonic_encoder_select="golomb"
1259 sonic_ls_encoder_select="golomb"
1260 svq1_encoder_select="aandct"
1261 svq3_decoder_select="golomb h264dsp h264pred"
1262 svq3_decoder_suggest="zlib"
1263 theora_decoder_select="vp3_decoder"
1264 tiff_decoder_suggest="zlib"
1265 tiff_encoder_suggest="zlib"
1266 truehd_decoder_select="mlp_decoder"
1267 tscc_decoder_select="zlib"
1268 twinvq_decoder_select="mdct lsp"
1269 vc1_decoder_select="h263_decoder"
1270 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1271 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1272 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1273 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1274 vorbis_decoder_select="mdct"
1275 vorbis_encoder_select="mdct"
1276 vp6_decoder_select="huffman"
1277 vp6a_decoder_select="vp6_decoder"
1278 vp6f_decoder_select="vp6_decoder"
1279 vp8_decoder_select="h264pred"
1280 wmapro_decoder_select="mdct"
1281 wmav1_decoder_select="mdct"
1282 wmav1_encoder_select="mdct"
1283 wmav2_decoder_select="mdct"
1284 wmav2_encoder_select="mdct"
1285 wmavoice_decoder_select="lsp rdft dct mdct"
1286 wmv1_decoder_select="h263_decoder"
1287 wmv1_encoder_select="h263_encoder"
1288 wmv2_decoder_select="h263_decoder"
1289 wmv2_encoder_select="h263_encoder"
1290 wmv3_decoder_select="vc1_decoder"
1291 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1292 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1293 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1294 zlib_decoder_select="zlib"
1295 zlib_encoder_select="zlib"
1296 zmbv_decoder_select="zlib"
1297 zmbv_encoder_select="zlib"
1298
1299 vaapi_deps="va_va_h"
1300 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1301
1302 # parsers
1303 h264_parser_select="golomb h264dsp h264pred"
1304
1305 # external libraries
1306 libdirac_decoder_deps="libdirac !libschroedinger"
1307 libdirac_encoder_deps="libdirac"
1308 libfaac_encoder_deps="libfaac"
1309 libgsm_decoder_deps="libgsm"
1310 libgsm_encoder_deps="libgsm"
1311 libgsm_ms_decoder_deps="libgsm"
1312 libgsm_ms_encoder_deps="libgsm"
1313 libmp3lame_encoder_deps="libmp3lame"
1314 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1315 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1316 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1317 libopenjpeg_decoder_deps="libopenjpeg"
1318 libschroedinger_decoder_deps="libschroedinger"
1319 libschroedinger_encoder_deps="libschroedinger"
1320 libspeex_decoder_deps="libspeex"
1321 libtheora_encoder_deps="libtheora"
1322 libvorbis_encoder_deps="libvorbis"
1323 libvpx_decoder_deps="libvpx"
1324 libvpx_encoder_deps="libvpx"
1325 libx264_encoder_deps="libx264"
1326 libxavs_encoder_deps="libxavs"
1327 libxvid_encoder_deps="libxvid"
1328
1329 # demuxers / muxers
1330 ac3_demuxer_deps="ac3_parser"
1331 asf_stream_muxer_select="asf_muxer"
1332 avisynth_demuxer_deps="avisynth"
1333 dirac_demuxer_deps="dirac_parser"
1334 eac3_demuxer_select="ac3_parser"
1335 ipod_muxer_select="mov_muxer"
1336 libnut_demuxer_deps="libnut"
1337 libnut_muxer_deps="libnut"
1338 matroska_audio_muxer_select="matroska_muxer"
1339 matroska_demuxer_suggest="zlib bzlib"
1340 mov_demuxer_suggest="zlib"
1341 mp3_demuxer_deps="mpegaudio_parser"
1342 mp4_muxer_select="mov_muxer"
1343 mpegtsraw_demuxer_select="mpegts_demuxer"
1344 mxf_d10_muxer_select="mxf_muxer"
1345 ogg_demuxer_select="golomb"
1346 psp_muxer_select="mov_muxer"
1347 rtsp_demuxer_deps="sdp_demuxer"
1348 rtsp_muxer_deps="sdp_demuxer"
1349 rtsp_muxer_select="rtp_muxer"
1350 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1351 sdp_demuxer_select="asf_demuxer rm_demuxer"
1352 spdif_muxer_select="aac_parser"
1353 tg2_muxer_select="mov_muxer"
1354 tgp_muxer_select="mov_muxer"
1355 w64_demuxer_deps="wav_demuxer"
1356
1357 # indevs / outdevs
1358 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1359 alsa_outdev_deps="alsa_asoundlib_h"
1360 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1361 dv1394_indev_deps="dv1394 dv_demuxer"
1362 jack_indev_deps="jack_jack_h"
1363 libdc1394_indev_deps="libdc1394"
1364 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1365 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1366 v4l_indev_deps="linux_videodev_h"
1367 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1368 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1369 vfwcap_indev_extralibs="-lavicap32"
1370 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1371 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1372
1373 # protocols
1374 gopher_protocol_deps="network"
1375 http_protocol_deps="network"
1376 http_protocol_select="tcp_protocol"
1377 mmst_protocol_deps="network"
1378 rtmp_protocol_select="tcp_protocol"
1379 rtp_protocol_select="udp_protocol"
1380 tcp_protocol_deps="network"
1381 udp_protocol_deps="network"
1382
1383 # libraries
1384 avdevice_deps="avcodec avformat"
1385 avformat_deps="avcodec"
1386
1387 # programs
1388 ffmpeg_deps="avcodec avformat swscale"
1389 ffmpeg_select="buffer_filter"
1390 ffplay_deps="avcodec avformat swscale sdl"
1391 ffplay_select="rdft"
1392 ffprobe_deps="avcodec avformat"
1393 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1394 ffserver_extralibs='$ldl'
1395
1396 doc_deps="texi2html"
1397
1398 # tests
1399
1400 test_deps(){
1401     suf1=$1
1402     suf2=$2
1403     shift 2
1404     for v; do
1405         dep=${v%=*}
1406         tests=${v#*=}
1407         for name in ${tests}; do
1408             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1409         done
1410     done
1411 }
1412
1413 set_ne_test_deps(){
1414     eval ${1}_be_test_deps="bigendian"
1415     eval ${1}_le_test_deps="!bigendian"
1416 }
1417
1418 test_deps _encoder _decoder                                             \
1419     ac3                                                                 \
1420     adpcm_g726=g726                                                     \
1421     adpcm_ima_qt                                                        \
1422     adpcm_ima_wav                                                       \
1423     adpcm_ms                                                            \
1424     adpcm_swf                                                           \
1425     adpcm_yamaha=adpcm_yam                                              \
1426     alac                                                                \
1427     asv1                                                                \
1428     asv2                                                                \
1429     bmp                                                                 \
1430     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1431     dvvideo="dv dv50"                                                   \
1432     ffv1                                                                \
1433     flac                                                                \
1434     flashsv                                                             \
1435     flv                                                                 \
1436     gif                                                                 \
1437     h261                                                                \
1438     h263="h263 h263p"                                                   \
1439     huffyuv                                                             \
1440     jpegls                                                              \
1441     mjpeg="jpg mjpeg ljpeg"                                             \
1442     mp2                                                                 \
1443     mpeg1video="mpeg mpeg1b"                                            \
1444     mpeg2video="mpeg2 mpeg2thread"                                      \
1445     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1446     msmpeg4v3=msmpeg4                                                   \
1447     msmpeg4v2                                                           \
1448     pbm=pbmpipe                                                         \
1449     pcx                                                                 \
1450     pgm="pgm pgmpipe"                                                   \
1451     ppm="ppm ppmpipe"                                                   \
1452     rawvideo="rgb yuv"                                                  \
1453     roq                                                                 \
1454     rv10                                                                \
1455     rv20                                                                \
1456     sgi                                                                 \
1457     snow="snow snowll"                                                  \
1458     svq1                                                                \
1459     targa=tga                                                           \
1460     tiff                                                                \
1461     wmav1                                                               \
1462     wmav2                                                               \
1463     wmv1                                                                \
1464     wmv2                                                                \
1465
1466 test_deps _muxer _demuxer                                               \
1467     aiff                                                                \
1468     pcm_alaw=alaw                                                       \
1469     asf                                                                 \
1470     au                                                                  \
1471     avi                                                                 \
1472     dv=dv_fmt                                                           \
1473     ffm                                                                 \
1474     flv=flv_fmt                                                         \
1475     gxf                                                                 \
1476     matroska=mkv                                                        \
1477     mmf                                                                 \
1478     mov                                                                 \
1479     pcm_mulaw=mulaw                                                     \
1480     mxf                                                                 \
1481     nut                                                                 \
1482     ogg                                                                 \
1483     rawvideo=pixfmt                                                     \
1484     rm                                                                  \
1485     swf                                                                 \
1486     mpegts=ts                                                           \
1487     voc                                                                 \
1488     wav                                                                 \
1489     yuv4mpegpipe=yuv4mpeg                                               \
1490
1491 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1492
1493 set_ne_test_deps pixdesc
1494 set_ne_test_deps pixfmts_crop
1495 set_ne_test_deps pixfmts_null
1496 set_ne_test_deps pixfmts_pad
1497 set_ne_test_deps pixfmts_scale
1498 set_ne_test_deps pixfmts_vflip
1499
1500 # default parameters
1501
1502 logfile="config.log"
1503
1504 # installation paths
1505 prefix_default="/usr/local"
1506 bindir_default='${prefix}/bin'
1507 datadir_default='${prefix}/share/ffmpeg'
1508 incdir_default='${prefix}/include'
1509 libdir_default='${prefix}/lib'
1510 mandir_default='${prefix}/share/man'
1511 shlibdir_default="$libdir_default"
1512
1513 # toolchain
1514 ar_default="ar"
1515 cc_default="gcc"
1516 cc_version=\"unknown\"
1517 host_cc_default="gcc"
1518 ln_s="ln -sf"
1519 nm_default="nm"
1520 objformat="elf"
1521 ranlib="ranlib"
1522 strip_default="strip"
1523 yasmexe="yasm"
1524 nogas=":"
1525
1526 nm_opts='-g'
1527
1528 # machine
1529 arch_default=$(uname -m)
1530 cpu="generic"
1531
1532 # OS
1533 target_os_default=$(tolower $(uname -s))
1534 host_os=$target_os_default
1535
1536 # configurable options
1537 enable avcodec
1538 enable avcore
1539 enable avdevice
1540 enable avfilter
1541 enable avformat
1542 enable avutil
1543 enable asm
1544 enable debug
1545 enable doc
1546 enable fastdiv
1547 enable ffmpeg
1548 enable ffplay
1549 enable ffprobe
1550 enable ffserver
1551 enable mpegaudio_hp
1552 enable network
1553 enable optimizations
1554 enable protocols
1555 enable static
1556 enable stripping
1557 enable swscale
1558 enable swscale_alpha
1559
1560 # build settings
1561 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1562 FFSERVERLDFLAGS=-Wl,-E
1563 LIBPREF="lib"
1564 LIBSUF=".a"
1565 FULLNAME='$(NAME)$(BUILDSUF)'
1566 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1567 SLIBPREF="lib"
1568 SLIBSUF=".so"
1569 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1570 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1571 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1572 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1573
1574 CC_O='-o $@'
1575
1576 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1577 host_libs='-lm'
1578
1579 target_path='$(CURDIR)'
1580
1581 # since the object filename is not given with the -MM flag, the compiler
1582 # is only able to print the basename, and we must add the path ourselves
1583 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1584 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1585
1586 # find source path
1587 source_path="$(dirname "$0")"
1588 enable source_path_used
1589 if test -f configure; then
1590     source_path="$(pwd)"
1591     disable source_path_used
1592 else
1593     source_path="$(cd "$source_path"; pwd)"
1594     echo "$source_path" | grep -q '[[:blank:]]' &&
1595         die "Out of tree builds are impossible with whitespace in source path."
1596     test -e "$source_path/config.h" &&
1597         die "Out of tree builds are impossible with config.h in source dir."
1598 fi
1599
1600 for v in "$@"; do
1601     r=${v#*=}
1602     l=${v%"$r"}
1603     r=$(sh_quote "$r")
1604     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1605 done
1606
1607 find_things(){
1608     thing=$1
1609     pattern=$2
1610     file=$source_path/$3
1611     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1612 }
1613
1614 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1615 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1616 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1617 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1618 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1619 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1620 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1621 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1622 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1623 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1624 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1625
1626 find_tests(){
1627     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1628 }
1629
1630 ACODEC_TESTS=$(find_tests acodec)
1631 VCODEC_TESTS=$(find_tests vsynth1)
1632 LAVF_TESTS=$(find_tests lavf)
1633 LAVFI_TESTS=$(find_tests lavfi)
1634 SEEK_TESTS=$(find_tests seek seek_)
1635
1636 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1637
1638 for n in $COMPONENT_LIST; do
1639     v=$(toupper ${n%s})_LIST
1640     eval enable \$$v
1641     eval ${n}_if_any="\$$v"
1642 done
1643
1644 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1645
1646 die_unknown(){
1647     echo "Unknown option \"$1\"."
1648     echo "See $0 --help for available options."
1649     exit 1
1650 }
1651
1652 show_list() {
1653     suffix=_$1
1654     shift
1655     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1656     exit 0
1657 }
1658
1659 for opt do
1660     optval="${opt#*=}"
1661     case "$opt" in
1662     --extra-ldflags=*) add_ldflags $optval
1663     ;;
1664     --extra-libs=*) add_extralibs $optval
1665     ;;
1666     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1667     ;;
1668     --enable-debug=*) debuglevel="$optval"
1669     ;;
1670     --disable-everything)
1671     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1672     ;;
1673     --enable-*=*|--disable-*=*)
1674     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1675     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1676     eval list=\$$(toupper $thing)_LIST
1677     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1678     $action $(filter "$name" $list)
1679     ;;
1680     --enable-?*|--disable-?*)
1681     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1682     if is_in $option $COMPONENT_LIST; then
1683         test $action = disable && action=unset
1684         eval $action \$$(toupper ${option%s})_LIST
1685     elif is_in $option $CMDLINE_SELECT; then
1686         $action $option
1687     else
1688         die_unknown $opt
1689     fi
1690     ;;
1691     --list-*)
1692         NAME="${opt#--list-}"
1693         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1694         NAME=${NAME%s}
1695         eval show_list $NAME \$$(toupper $NAME)_LIST
1696     ;;
1697     --help|-h) show_help
1698     ;;
1699     *)
1700     optname="${opt%%=*}"
1701     optname="${optname#--}"
1702     optname=$(echo "$optname" | sed 's/-/_/g')
1703     if is_in $optname $CMDLINE_SET; then
1704         eval $optname='$optval'
1705     elif is_in $optname $CMDLINE_APPEND; then
1706         append $optname "$optval"
1707     else
1708          die_unknown $opt
1709     fi
1710     ;;
1711     esac
1712 done
1713
1714 disabled logging && logfile=/dev/null
1715
1716 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1717 set >> $logfile
1718
1719 test -n "$cross_prefix" && enable cross_compile
1720
1721 if enabled cross_compile; then
1722     test -n "$arch" && test -n "$target_os" ||
1723         die "Must specify target arch and OS when cross-compiling"
1724 fi
1725
1726 set_default arch target_os
1727
1728 ar_default="${cross_prefix}${ar_default}"
1729 cc_default="${cross_prefix}${cc_default}"
1730 nm_default="${cross_prefix}${nm_default}"
1731 ranlib="${cross_prefix}${ranlib}"
1732 strip_default="${cross_prefix}${strip_default}"
1733
1734 sysinclude_default="${sysroot}/usr/include"
1735
1736 set_default cc nm strip sysinclude
1737 enabled cross_compile || host_cc_default=$cc
1738 set_default host_cc
1739
1740 exesuf() {
1741     case $1 in
1742         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1743     esac
1744 }
1745
1746 EXESUF=$(exesuf $target_os)
1747 HOSTEXESUF=$(exesuf $host_os)
1748
1749 # set temporary file name
1750 : ${TMPDIR:=$TEMPDIR}
1751 : ${TMPDIR:=$TMP}
1752 : ${TMPDIR:=/tmp}
1753
1754 if ! check_cmd type mktemp; then
1755     # simple replacement for missing mktemp
1756     # NOT SAFE FOR GENERAL USE
1757     mktemp(){
1758         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1759     }
1760 fi
1761
1762 tmpfile(){
1763     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1764         (set -C; exec > $tmp) 2>/dev/null ||
1765         die "Unable to create temporary file in $TMPDIR."
1766     append TMPFILES $tmp
1767     eval $1=$tmp
1768 }
1769
1770 trap 'rm -f -- $TMPFILES' EXIT
1771 trap exit HUP INT TERM
1772
1773 tmpfile TMPC  .c
1774 tmpfile TMPE  $EXESUF
1775 tmpfile TMPH  .h
1776 tmpfile TMPO  .o
1777 tmpfile TMPS  .S
1778 tmpfile TMPV  .ver
1779 tmpfile TMPSH .sh
1780
1781 unset -f mktemp
1782
1783 # make sure we can execute files in $TMPDIR
1784 cat > $TMPSH 2>> $logfile <<EOF
1785 #! /bin/sh
1786 EOF
1787 chmod +x $TMPSH >> $logfile 2>&1
1788 if ! $TMPSH >> $logfile 2>&1; then
1789     cat <<EOF
1790 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1791 variable to another directory and make sure that it is not mounted noexec.
1792 EOF
1793     die "Sanity test failed."
1794 fi
1795
1796 filter_cflags=echo
1797 filter_cppflags=echo
1798 filter_asflags=echo
1799
1800 if   $cc -v 2>&1 | grep -qi ^gcc; then
1801     cc_type=gcc
1802     cc_version=__VERSION__
1803     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1804     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1805     if ! $cc -dumpversion | grep -q '^2\.'; then
1806         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1807         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1808     fi
1809     speed_cflags='-O3'
1810     size_cflags='-Os'
1811 elif $cc --version 2>/dev/null | grep -q Intel; then
1812     cc_type=icc
1813     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1814     cc_ident=$($cc --version | head -n1)
1815     CC_DEPFLAGS='-MMD'
1816     AS_DEPFLAGS='-MMD'
1817     speed_cflags='-O3'
1818     size_cflags='-Os'
1819     noopt_cflags='-O1'
1820 elif $cc -v 2>&1 | grep -q xlc; then
1821     cc_type=xlc
1822     cc_version="AV_STRINGIFY(__IBMC__)"
1823     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1824     speed_cflags='-O5'
1825     size_cflags='-O5 -qcompact'
1826 elif $cc -V 2>/dev/null | grep -q Compaq; then
1827     cc_type=ccc
1828     cc_version="AV_STRINGIFY(__DECC_VER)"
1829     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1830     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1831     debuglevel=3
1832     add_ldflags -Wl,-z,now # calls to libots crash without this
1833     speed_cflags='-fast'
1834     size_cflags='-O1'
1835 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1836     test -d "$sysroot" || die "No valid sysroot specified."
1837     cc_type=armcc
1838     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1839     cc_ident=$($cc --vsn | head -n1)
1840     armcc_conf="$PWD/armcc.conf"
1841     $cc --arm_linux_configure                 \
1842         --arm_linux_config_file="$armcc_conf" \
1843         --configure_sysroot="$sysroot"        \
1844         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1845         die "Error creating armcc configuration file."
1846     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1847     as_default="${cross_prefix}gcc"
1848     CC_DEPFLAGS='-MMD'
1849     AS_DEPFLAGS='-MMD'
1850     speed_cflags='-O3'
1851     size_cflags='-Os'
1852 elif $cc -version 2>/dev/null | grep -q TMS470; then
1853     cc_type=tms470
1854     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1855     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1856     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1857     CC_O='-fr=$(@D)'
1858     as_default="${cross_prefix}gcc"
1859     ld_default="${cross_prefix}gcc"
1860     TMPO=$(basename $TMPC .c).o
1861     append TMPFILES $TMPO
1862     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1863     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1864     AS_DEPFLAGS='-MMD'
1865     speed_cflags='-O3 -mf=5'
1866     size_cflags='-O3 -mf=2'
1867     filter_cflags=tms470_flags
1868     tms470_flags(){
1869         for flag; do
1870             case $flag in
1871                 -march=*|-mcpu=*)
1872                     case "${flag#*=}" in
1873                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1874                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1875                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1876                         armv6*|arm11*)          echo -mv=6   ;;
1877                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1878                                                 echo -mv=5e  ;;
1879                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1880                     esac
1881                     ;;
1882                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1883                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1884                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1885                 -msoft-float)   echo --float_support=vfplib       ;;
1886                 -O[0-3]|-mf=*)  echo $flag                        ;;
1887                 -g)             echo -g -mn                       ;;
1888                 -pds=*)         echo $flag                        ;;
1889             esac
1890         done
1891     }
1892 elif $cc -v 2>&1 | grep -q clang; then
1893     cc_type=clang
1894     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1895         cc_version=__clang_version__ || cc_version=__VERSION__
1896     cc_ident=$($cc --version | head -n1)
1897     CC_DEPFLAGS='-MMD'
1898     AS_DEPFLAGS='-MMD'
1899     speed_cflags='-O3'
1900     size_cflags='-Os'
1901 elif $cc -V 2>&1 | grep -q Sun; then
1902     cc_type=suncc
1903     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1904     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1905     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1906     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1907     speed_cflags='-O5'
1908     size_cflags='-O5 -xspace'
1909     filter_cflags=suncc_flags
1910     suncc_flags(){
1911         for flag; do
1912             case $flag in
1913                 -march=*|-mcpu=*)
1914                     case "${flag#*=}" in
1915                         native)                   echo -xtarget=native       ;;
1916                         v9|niagara)               echo -xarch=sparc          ;;
1917                         ultrasparc)               echo -xarch=sparcvis       ;;
1918                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1919                         i586|pentium)             echo -xchip=pentium        ;;
1920                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1921                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1922                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1923                         pentium4*)          echo -xtarget=pentium4           ;;
1924                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1925                         *-sse3)             echo -xarch=sse3                 ;;
1926                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1927                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1928                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1929                         k8|opteron|athlon64|athlon-fx)
1930                                                   echo -xarch=sse2a          ;;
1931                         athlon*)                  echo -xarch=pentium_proa   ;;
1932                     esac
1933                     ;;
1934                 -std=c99)             echo -xc99              ;;
1935                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1936                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1937                 -W*,*)                echo $flag              ;;
1938                 -f*-*|-W*)                                    ;;
1939                 *)                    echo $flag              ;;
1940             esac
1941         done
1942     }
1943 elif $cc -v 2>&1 | grep -q PathScale; then
1944     cc_type=pathscale
1945     cc_version=__PATHSCALE__
1946     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1947     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1949     speed_cflags='-O2'
1950     size_cflags='-Os'
1951 fi
1952
1953 test -n "$cc_type" && enable $cc_type ||
1954     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1955
1956 : ${as_default:=$cc}
1957 : ${dep_cc_default:=$cc}
1958 : ${ld_default:=$cc}
1959 set_default ar as dep_cc ld
1960
1961 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1962 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1963
1964 add_cflags $extra_cflags
1965 add_asflags $extra_cflags
1966
1967 if test -n "$sysroot"; then
1968     case "$cc_type" in
1969         gcc)
1970             add_cppflags --sysroot="$sysroot"
1971             add_ldflags --sysroot="$sysroot"
1972         ;;
1973         tms470)
1974             add_cppflags -I"$sysinclude"
1975             add_ldflags  --sysroot="$sysroot"
1976         ;;
1977         clang)
1978             add_cppflags -isysroot "$sysroot"
1979             add_ldflags -isysroot "$sysroot"
1980         ;;
1981     esac
1982 fi
1983
1984 if test "$cpu" = host; then
1985     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1986
1987     case "$cc_type" in
1988         gcc)
1989             check_native(){
1990                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1991                 sed -n "/$1=/{
1992                             s/.*$1=\\([^ ]*\\).*/\\1/
1993                             p
1994                             q
1995                         }" $TMPE
1996             }
1997             cpu=$(check_native -march || check_native -mcpu)
1998         ;;
1999     esac
2000
2001     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2002 fi
2003
2004 # Deal with common $arch aliases
2005 case "$arch" in
2006     arm*)
2007         arch="arm"
2008     ;;
2009     mips|mipsel|IP*)
2010         arch="mips"
2011     ;;
2012     mips64*)
2013         arch="mips"
2014         subarch="mips64"
2015     ;;
2016     parisc|hppa)
2017         arch="parisc"
2018     ;;
2019     parisc64|hppa64)
2020         arch="parisc"
2021         subarch="parisc64"
2022     ;;
2023     "Power Macintosh"|ppc|powerpc)
2024         arch="ppc"
2025     ;;
2026     ppc64|powerpc64)
2027         arch="ppc"
2028         subarch="ppc64"
2029     ;;
2030     s390|s390x)
2031         arch="s390"
2032     ;;
2033     sh4|sh)
2034         arch="sh4"
2035     ;;
2036     sun4u|sparc64)
2037         arch="sparc"
2038         subarch="sparc64"
2039     ;;
2040     i[3-6]86|i86pc|BePC|x86_64|amd64)
2041         arch="x86"
2042     ;;
2043 esac
2044
2045 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2046 enable $arch
2047
2048 # Add processor-specific flags
2049 if test "$cpu" = generic; then
2050     : do nothing
2051 elif enabled ppc; then
2052
2053     case $(tolower $cpu) in
2054         601|ppc601|powerpc601)
2055             cpuflags="-mcpu=601"
2056             disable altivec
2057         ;;
2058         603*|ppc603*|powerpc603*)
2059             cpuflags="-mcpu=603"
2060             disable altivec
2061         ;;
2062         604*|ppc604*|powerpc604*)
2063             cpuflags="-mcpu=604"
2064             disable altivec
2065         ;;
2066         g3|75*|ppc75*|powerpc75*)
2067             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2068             disable altivec
2069         ;;
2070         g4|745*|ppc745*|powerpc745*)
2071             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2072         ;;
2073         74*|ppc74*|powerpc74*)
2074             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2075         ;;
2076         g5|970|ppc970|powerpc970|power4*)
2077             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2078         ;;
2079         cell)
2080             cpuflags="-mcpu=cell"
2081             enable ldbrx
2082         ;;
2083         e500v2)
2084             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2085             disable altivec
2086         ;;
2087         e500)
2088             cpuflags="-mcpu=8540 -mhard-float"
2089             disable altivec
2090         ;;
2091     esac
2092
2093 elif enabled x86; then
2094
2095     case $cpu in
2096         i[345]86|pentium)
2097             cpuflags="-march=$cpu"
2098             disable mmx
2099         ;;
2100         # targets that do NOT support conditional mov (cmov)
2101         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2102             cpuflags="-march=$cpu"
2103             disable cmov
2104         ;;
2105         # targets that do support conditional mov (cmov)
2106         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2107             cpuflags="-march=$cpu"
2108             enable cmov
2109             enable fast_cmov
2110         ;;
2111         # targets that do support conditional mov but on which it's slow
2112         pentium4|pentium4m|prescott|nocona)
2113             cpuflags="-march=$cpu"
2114             enable cmov
2115             disable fast_cmov
2116         ;;
2117     esac
2118
2119 elif enabled sparc; then
2120
2121     case $cpu in
2122         niagara)
2123             cpuflags="-mcpu=$cpu"
2124             disable vis
2125         ;;
2126         sparc64)
2127             cpuflags="-mcpu=v9"
2128         ;;
2129     esac
2130
2131 elif enabled arm; then
2132
2133     case $cpu in
2134         armv*)
2135             cpuflags="-march=$cpu"
2136             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2137         ;;
2138         *)
2139             cpuflags="-mcpu=$cpu"
2140             case $cpu in
2141                 cortex-a*)                               subarch=armv7a  ;;
2142                 cortex-r*)                               subarch=armv7r  ;;
2143                 cortex-m*)                               subarch=armv7m  ;;
2144                 arm11*)                                  subarch=armv6   ;;
2145                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2146                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2147             esac
2148         ;;
2149     esac
2150
2151 elif enabled alpha; then
2152
2153     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2154
2155 elif enabled bfin; then
2156
2157     cpuflags="-mcpu=$cpu"
2158
2159 elif enabled mips; then
2160
2161     cpuflags="-march=$cpu"
2162
2163 elif enabled avr32; then
2164
2165     case $cpu in
2166         ap7[02]0[0-2])
2167             subarch="avr32_ap"
2168             cpuflags="-mpart=$cpu"
2169         ;;
2170         ap)
2171             subarch="avr32_ap"
2172             cpuflags="-march=$cpu"
2173         ;;
2174         uc3[ab]*)
2175             subarch="avr32_uc"
2176             cpuflags="-mcpu=$cpu"
2177         ;;
2178         uc)
2179             subarch="avr32_uc"
2180             cpuflags="-march=$cpu"
2181         ;;
2182     esac
2183
2184 fi
2185
2186 add_cflags $cpuflags
2187 add_asflags $cpuflags
2188
2189 # compiler sanity check
2190 check_exec <<EOF
2191 int main(void){ return 0; }
2192 EOF
2193 if test "$?" != 0; then
2194     echo "$cc is unable to create an executable file."
2195     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2196         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2197         echo "Only do this if you know what cross compiling means."
2198     fi
2199     die "C compiler test failed."
2200 fi
2201
2202 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2203 check_cflags -std=c99
2204 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2205 #include <stdlib.h>
2206 EOF
2207 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2208 #include <stdlib.h>
2209 EOF
2210
2211 check_host_cflags -std=c99
2212
2213 case "$arch" in
2214     alpha|ia64|mips|parisc|sparc)
2215         spic=$shared
2216     ;;
2217     x86)
2218         subarch="x86_32"
2219         check_cc <<EOF && subarch="x86_64"
2220         int test[(int)sizeof(char*) - 7];
2221 EOF
2222         if test "$subarch" = "x86_64"; then
2223             spic=$shared
2224         fi
2225     ;;
2226 esac
2227
2228 enable $subarch
2229 enabled spic && enable pic
2230
2231 # OS specific
2232 case $target_os in
2233     haiku)
2234         prefix_default="/boot/common"
2235         network_extralibs="-lnetwork"
2236         ;;
2237     sunos)
2238         FFSERVERLDFLAGS=""
2239         SHFLAGS='-shared -Wl,-h,$$(@F)'
2240         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2241         network_extralibs="-lsocket -lnsl"
2242         add_cppflags -D__EXTENSIONS__
2243         nm_opts='-P -g'
2244         ;;
2245     netbsd)
2246         oss_indev_extralibs="-lossaudio"
2247         oss_outdev_extralibs="-lossaudio"
2248         add_cppflags -D_XOPEN_SOURCE=600
2249         ;;
2250     openbsd)
2251         enable malloc_aligned
2252         # On OpenBSD 4.5. the compiler does not use PIC unless
2253         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2254         # however the generated executable will not do anything
2255         # (simply quits with exit-code 1, no crash, no output).
2256         # Thus explicitly enable PIC here.
2257         enable pic
2258         SHFLAGS='-shared'
2259         oss_indev_extralibs="-lossaudio"
2260         oss_outdev_extralibs="-lossaudio"
2261         ;;
2262     freebsd|dragonfly)
2263         enable malloc_aligned
2264         ;;
2265     bsd/os)
2266         add_extralibs -lpoll -lgnugetopt
2267         strip="strip -d"
2268         ;;
2269     darwin)
2270         enable malloc_aligned
2271         gas="gas-preprocessor.pl $cc"
2272         enabled ppc && add_asflags -force_cpusubtype_ALL
2273         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2274         strip="${strip} -x"
2275         add_ldflags -Wl,-dynamic,-search_paths_first
2276         SLIBSUF=".dylib"
2277         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2278         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2279         FFSERVERLDFLAGS=-Wl,-bind_at_load
2280         objformat="macho"
2281         enabled x86_64 && objformat="macho64"
2282         enabled_any pic shared ||
2283             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2284         ;;
2285     mingw32*)
2286         if test $target_os = "mingw32ce"; then
2287             disable network
2288         else
2289             target_os=mingw32
2290         fi
2291         LIBTARGET=i386
2292         if enabled x86_64; then
2293             enable malloc_aligned
2294             LIBTARGET=x64
2295         elif enabled arm; then
2296             LIBTARGET=arm
2297         fi
2298         shlibdir_default="$bindir_default"
2299         disable ffserver
2300         SLIBPREF=""
2301         SLIBSUF=".dll"
2302         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2303         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2304         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2305         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2306             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2307             install -d "$(LIBDIR)"; \
2308             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2309         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2310         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'
2311         objformat="win32"
2312         enable dos_paths
2313         check_cflags -fno-common
2314         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2315                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2316                 die "ERROR: MinGW runtime version must be >= 3.15."
2317         ;;
2318     cygwin*)
2319         target_os=cygwin
2320         shlibdir_default="$bindir_default"
2321         SLIBPREF="cyg"
2322         SLIBSUF=".dll"
2323         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2324         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2325         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2326         objformat="win32"
2327         enable dos_paths
2328         check_cflags -fno-common
2329         ;;
2330     *-dos|freedos|opendos)
2331         disable ffplay ffserver
2332         disable $INDEV_LIST $OUTDEV_LIST
2333         network_extralibs="-lsocket"
2334         objformat="coff"
2335         enable dos_paths
2336         ;;
2337     linux)
2338         enable dv1394
2339         ;;
2340     irix*)
2341         target_os=irix
2342         ranlib="echo ignoring ranlib"
2343         ;;
2344     os/2*)
2345         strip="lxlite"
2346         ln_s="cp -f"
2347         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2348         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2349         FFSERVERLDFLAGS=""
2350         LIBSUF="_s.a"
2351         SLIBPREF=""
2352         SLIBSUF=".dll"
2353         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2354         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2355         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2356           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2357           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2358           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2359           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2360           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2361         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2362           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2363         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2364         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2365         enable dos_paths
2366         ;;
2367     gnu/kfreebsd)
2368         ;;
2369     gnu)
2370         ;;
2371     none)
2372         ;;
2373     *)
2374         die "Unknown OS '$target_os'."
2375         ;;
2376 esac
2377
2378 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2379
2380 set_default $PATHS_LIST
2381
2382 # we need to build at least one lib type
2383 if ! enabled_any static shared; then
2384     cat <<EOF
2385 At least one library type must be built.
2386 Specify --enable-static to build the static libraries or --enable-shared to
2387 build the shared libraries as well. To only build the shared libraries specify
2388 --disable-static in addition to --enable-shared.
2389 EOF
2390     exit 1;
2391 fi
2392
2393 disabled static && LIBNAME=""
2394
2395 die_license_disabled() {
2396     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2397 }
2398
2399 die_license_disabled gpl libx264
2400 die_license_disabled gpl libxavs
2401 die_license_disabled gpl libxvid
2402 die_license_disabled gpl postproc
2403 die_license_disabled gpl x11grab
2404
2405 die_license_disabled nonfree libfaac
2406
2407 die_license_disabled version3 libopencore_amrnb
2408 die_license_disabled version3 libopencore_amrwb
2409
2410 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2411
2412 check_deps $ARCH_EXT_LIST
2413
2414 disabled optimizations || check_cflags -fomit-frame-pointer
2415
2416 enable_pic() {
2417     enable pic
2418     add_cppflags -DPIC
2419     add_cflags   -fPIC
2420     add_asflags  -fPIC
2421 }
2422
2423 enabled pic && enable_pic
2424
2425 check_cc <<EOF || die "Symbol mangling check failed."
2426 int ff_extern;
2427 EOF
2428 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2429 extern_prefix=${sym%%ff_extern*}
2430
2431 check_cc <<EOF && enable inline_asm
2432 void foo(void) { __asm__ volatile ("" ::); }
2433 EOF
2434
2435 _restrict=
2436 for restrict_keyword in restrict __restrict__ __restrict; do
2437     check_cc <<EOF && _restrict=$restrict_keyword && break
2438 void foo(char * $restrict_keyword p);
2439 EOF
2440 done
2441
2442 check_cc <<EOF && enable attribute_packed
2443 struct { int x; } __attribute__((packed)) x;
2444 EOF
2445
2446 check_cc <<EOF && enable attribute_may_alias
2447 union { int x; } __attribute__((may_alias)) x;
2448 EOF
2449
2450 check_cc <<EOF || die "endian test failed"
2451 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2452 EOF
2453 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2454
2455 if enabled alpha; then
2456
2457     check_cflags -mieee
2458
2459 elif enabled arm; then
2460
2461     check_cflags -marm
2462     nogas=die
2463
2464     check_ld <<EOF && enable vfp_args
2465 __asm__ (".eabi_attribute 28, 1");
2466 int main(void) { return 0; }
2467 EOF
2468
2469     # We have to check if pld is a nop and disable it.
2470     check_asm pld '"pld [r0]"'
2471
2472     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2473     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2474     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2475     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2476     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2477     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2478
2479     enabled_all armv6t2 shared !pic && enable_pic
2480
2481 elif enabled mips; then
2482
2483     check_asm loongson '"dmult.g $1, $2, $3"'
2484     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2485
2486 elif enabled ppc; then
2487
2488     enable local_aligned_8 local_aligned_16
2489
2490     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2491     check_asm ibm_asm   '"add 0, 0, 0"'
2492     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2493     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2494
2495     # AltiVec flags: The FSF version of GCC differs from the Apple version
2496     if enabled altivec; then
2497         nogas=warn
2498         check_cflags -maltivec -mabi=altivec &&
2499         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2500         check_cflags -faltivec
2501
2502         # check if our compiler supports Motorola AltiVec C API
2503         check_cc <<EOF || disable altivec
2504 $inc_altivec_h
2505 int main(void) {
2506     vector signed int v1, v2, v3;
2507     v1 = vec_add(v2,v3);
2508     return 0;
2509 }
2510 EOF
2511
2512         # check if our compiler supports braces for vector declarations
2513         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2514 $inc_altivec_h
2515 int main (void) { (vector int) {1}; return 0; }
2516 EOF
2517     fi
2518
2519 elif enabled sparc; then
2520
2521     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2522         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2523
2524 elif enabled x86; then
2525
2526     enable local_aligned_8 local_aligned_16
2527
2528     # check whether EBP is available on x86
2529     # As 'i' is stored on the stack, this program will crash
2530     # if the base pointer is used to access it because the
2531     # base pointer is cleared in the inline assembly code.
2532     check_exec_crash <<EOF && enable ebp_available
2533     volatile int i=0;
2534     __asm__ volatile (
2535         "xorl %%ebp, %%ebp"
2536     ::: "%ebp");
2537     return i;
2538 EOF
2539
2540     # check whether EBX is available on x86
2541     check_asm ebx_available '""::"b"(0)' &&
2542         check_asm ebx_available '"":::"%ebx"'
2543
2544     # check whether more than 10 operands are supported
2545     check_cc <<EOF && enable ten_operands
2546 int main(void) {
2547     int x=0;
2548     __asm__ volatile(
2549         ""
2550         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2551     );
2552     return 0;
2553 }
2554 EOF
2555
2556     # check whether binutils is new enough to compile SSSE3/MMX2
2557     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2558     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2559
2560     check_asm bswap '"bswap %%eax" ::: "%eax"'
2561
2562     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2563     enabled     x86_64        && append YASMFLAGS "-m amd64"
2564     enabled     pic           && append YASMFLAGS "-DPIC"
2565     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2566     case "$objformat" in
2567         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2568     esac
2569     if ! disabled yasm; then
2570         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2571             warn "yasm not found, performance will suffer"
2572     fi
2573
2574     case "$cpu" in
2575         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2576             disable fast_clz
2577         ;;
2578     esac
2579
2580 fi
2581
2582 if enabled asm; then
2583     as=${gas:=$as}
2584     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2585         $nogas "GNU assembler not found, install gas-preprocessor"
2586 fi
2587
2588 if check_func dlopen; then
2589     ldl=
2590 elif check_func dlopen -ldl; then
2591     ldl=-ldl
2592 fi
2593
2594 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2595 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2596
2597 check_func  fcntl
2598 check_func  fork
2599 check_func  getaddrinfo $network_extralibs
2600 check_func  gethrtime
2601 check_func  getrusage
2602 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2603 check_func  inet_aton $network_extralibs
2604 check_func  isatty
2605 check_func  ${malloc_prefix}memalign            && enable memalign
2606 check_func  mkstemp
2607 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2608 check_func  setrlimit
2609 check_func  strerror_r
2610 check_func_headers io.h setmode
2611 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2612 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2613 check_func_headers windows.h GetProcessTimes
2614 check_func_headers windows.h VirtualAlloc
2615
2616 check_header conio.h
2617 check_header dlfcn.h
2618 check_header dxva2api.h
2619 check_header malloc.h
2620 check_header poll.h
2621 check_header sys/mman.h
2622 check_header sys/resource.h
2623 check_header sys/select.h
2624 check_header termios.h
2625 check_header vdpau/vdpau.h
2626 check_header vdpau/vdpau_x11.h
2627 check_header X11/extensions/XvMClib.h
2628
2629 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2630
2631 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2632      enabled_any $need_memalign ; then
2633     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2634 fi
2635
2636 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2637 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2638
2639 # check for some common methods of building with pthread support
2640 # do this before the optional library checks as some of them require pthreads
2641 if ! disabled pthreads && ! enabled w32threads; then
2642     enable pthreads
2643     if check_func pthread_create; then
2644         :
2645     elif check_func pthread_create -pthread; then
2646         add_cflags -pthread
2647         add_extralibs -pthread
2648     elif check_func pthread_create -pthreads; then
2649         add_cflags -pthreads
2650         add_extralibs -pthreads
2651     elif check_func pthread_create -lpthreadGC2; then
2652         add_extralibs -lpthreadGC2
2653     elif ! check_lib pthread.h pthread_create -lpthread; then
2654         disable pthreads
2655     fi
2656 fi
2657
2658 for thread in $THREADS_LIST; do
2659     if enabled $thread; then
2660         test -n "$thread_type" &&
2661             die "ERROR: Only one thread type must be selected." ||
2662             thread_type="$thread"
2663     fi
2664 done
2665
2666 check_lib math.h sin -lm
2667 disabled vaapi || check_lib va/va.h vaInitialize -lva
2668
2669 check_mathfunc exp2
2670 check_mathfunc exp2f
2671 check_mathfunc llrint
2672 check_mathfunc llrintf
2673 check_mathfunc log2
2674 check_mathfunc log2f
2675 check_mathfunc lrint
2676 check_mathfunc lrintf
2677 check_mathfunc round
2678 check_mathfunc roundf
2679 check_mathfunc truncf
2680
2681 # these are off by default, so fail if requested and not available
2682 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2683 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2684                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2685                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2686 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2687 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2688 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2689 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2690 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2691 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2692 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2693 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2694                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2695 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2696                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2697 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2698 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2699 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2700 enabled libvpx     && {
2701     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2702                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2703     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2704                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2705 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2706                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2707                         die "ERROR: libx264 version must be >= 0.98."; }
2708 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2709 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2710 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2711
2712 # libdc1394 check
2713 if enabled libdc1394; then
2714     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2715         enable libdc1394_2; } ||
2716     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2717         enable libdc1394_1; } ||
2718     die "ERROR: No version of libdc1394 found "
2719 fi
2720
2721 SDL_CONFIG="${cross_prefix}sdl-config"
2722 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2723     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2724     sdl_libs=$("${SDL_CONFIG}" --libs)
2725     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2726     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2727     enable sdl &&
2728     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2729 fi
2730
2731 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2732
2733 if enabled network; then
2734     check_type "sys/types.h sys/socket.h" socklen_t
2735     check_type netdb.h "struct addrinfo"
2736     check_type netinet/in.h "struct ipv6_mreq"
2737     check_type netinet/in.h "struct sockaddr_in6"
2738     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2739     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2740     # Prefer arpa/inet.h over winsock2
2741     if check_header arpa/inet.h ; then
2742         check_func closesocket
2743     elif check_header winsock2.h ; then
2744         check_func_headers winsock2.h closesocket -lws2 && \
2745             network_extralibs="-lws2" || \
2746         { check_func_headers winsock2.h closesocket -lws2_32 && \
2747             network_extralibs="-lws2_32"; }
2748         check_type ws2tcpip.h socklen_t
2749         check_type ws2tcpip.h "struct addrinfo"
2750         check_type ws2tcpip.h "struct ipv6_mreq"
2751         check_type ws2tcpip.h "struct sockaddr_in6"
2752         check_type ws2tcpip.h "struct sockaddr_storage"
2753         check_struct winsock2.h "struct sockaddr" sa_len
2754     else
2755         disable network
2756     fi
2757 fi
2758
2759 check_header linux/videodev.h
2760 check_header linux/videodev2.h
2761 check_header sys/videoio.h
2762
2763 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2764 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2765 # w32api 3.12 had it defined wrong
2766 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2767
2768 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2769 { check_header dev/bktr/ioctl_meteor.h &&
2770   check_header dev/bktr/ioctl_bt848.h; } ||
2771 { check_header machine/ioctl_meteor.h &&
2772   check_header machine/ioctl_bt848.h; } ||
2773 { check_header dev/video/meteor/ioctl_meteor.h &&
2774   check_header dev/video/bktr/ioctl_bt848.h; } ||
2775 check_header dev/ic/bt8xx.h
2776
2777 check_header sys/soundcard.h
2778 check_header soundcard.h
2779
2780 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2781
2782 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2783
2784 enabled x11grab                         &&
2785 check_header X11/Xlib.h                 &&
2786 check_header X11/extensions/XShm.h      &&
2787 check_header X11/extensions/Xfixes.h    &&
2788 check_func XOpenDisplay -lX11           &&
2789 check_func XShmCreateImage -lX11 -lXext &&
2790 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2791
2792 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2793 check_cpp_condition \
2794     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2795     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2796       disable vdpau; }
2797 fi
2798
2799 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2800
2801 # add some useful compiler flags if supported
2802 check_cflags -Wdeclaration-after-statement
2803 check_cflags -Wall
2804 check_cflags -Wno-parentheses
2805 check_cflags -Wno-switch
2806 check_cflags -Wdisabled-optimization
2807 check_cflags -Wpointer-arith
2808 check_cflags -Wredundant-decls
2809 check_cflags -Wno-pointer-sign
2810 check_cflags -Wcast-qual
2811 check_cflags -Wwrite-strings
2812 check_cflags -Wtype-limits
2813 check_cflags -Wundef
2814 check_cflags -Wmissing-prototypes
2815 enabled extra_warnings && check_cflags -Winline
2816
2817 # add some linker flags
2818 check_ldflags -Wl,--warn-common
2819 check_ldflags -Wl,--as-needed
2820 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)/libavcore -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2821 check_ldflags -Wl,-Bsymbolic
2822
2823 echo "X{};" > $TMPV
2824 if test_ldflags -Wl,--version-script,$TMPV; then
2825     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2826     check_cc <<EOF && enable symver_asm_label
2827 void ff_foo(void) __asm__ ("av_foo@VERSION");
2828 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2829 EOF
2830     check_cc <<EOF && enable symver_gnu_asm
2831 __asm__(".symver ff_foo,av_foo@VERSION");
2832 void ff_foo(void) {}
2833 EOF
2834 fi
2835
2836 if enabled small; then
2837     add_cflags $size_cflags
2838     optimizations="small"
2839 elif enabled optimizations; then
2840     add_cflags $speed_cflags
2841 else
2842     add_cflags $noopt_cflags
2843 fi
2844 check_cflags -fno-math-errno
2845 check_cflags -fno-signed-zeros
2846
2847 if enabled icc; then
2848     # Just warnings, no remarks
2849     check_cflags -w1
2850     # -wd: Disable following warnings
2851     # 144, 167, 556: -Wno-pointer-sign
2852     # 10006: ignoring unknown option -fno-signed-zeros
2853     # 10156: ignoring option '-W'; no argument required
2854     check_cflags -wd144,167,556,10006,10156
2855     # 11030: Warning unknown option --as-needed
2856     # 10156: ignoring option '-export'; no argument required
2857     check_ldflags -wd10156,11030
2858     # Allow to compile with optimizations
2859     check_ldflags -march=$cpu
2860     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2861     enable ebp_available
2862 elif enabled ccc; then
2863     # disable some annoying warnings
2864     add_cflags -msg_disable cvtu32to64
2865     add_cflags -msg_disable embedcomment
2866     add_cflags -msg_disable needconstext
2867     add_cflags -msg_disable nomainieee
2868     add_cflags -msg_disable ptrmismatch1
2869     add_cflags -msg_disable unreachcode
2870 elif enabled gcc; then
2871     check_cflags -fno-tree-vectorize
2872     check_cflags -Werror=implicit-function-declaration
2873     check_cflags -Werror=missing-prototypes
2874 elif enabled clang; then
2875     check_cflags -Qunused-arguments
2876 elif enabled armcc; then
2877     # 2523: use of inline assembler is deprecated
2878     add_cflags -Wrvct,--diag_suppress=2523
2879     add_cflags -Wrvct,--diag_suppress=1207
2880 elif enabled tms470; then
2881     add_cflags -pds=824 -pds=837
2882 fi
2883
2884 enabled_any $THREADS_LIST      && enable threads
2885
2886 check_deps $CONFIG_LIST       \
2887            $CONFIG_EXTRA      \
2888            $HAVE_LIST         \
2889            $DECODER_LIST      \
2890            $ENCODER_LIST      \
2891            $HWACCEL_LIST      \
2892            $PARSER_LIST       \
2893            $BSF_LIST          \
2894            $DEMUXER_LIST      \
2895            $MUXER_LIST        \
2896            $FILTER_LIST       \
2897            $INDEV_LIST        \
2898            $OUTDEV_LIST       \
2899            $PROTOCOL_LIST     \
2900            $ACODEC_TESTS      \
2901            $VCODEC_TESTS      \
2902            $LAVF_TESTS        \
2903            $LAVFI_TESTS       \
2904            $SEEK_TESTS        \
2905
2906 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2907
2908 echo "install prefix            $prefix"
2909 echo "source path               $source_path"
2910 echo "C compiler                $cc"
2911 echo "ARCH                      $arch ($cpu)"
2912 if test "$build_suffix" != ""; then
2913     echo "build suffix              $build_suffix"
2914 fi
2915 if test "$extra_version" != ""; then
2916     echo "version string suffix     $extra_version"
2917 fi
2918 echo "big-endian                ${bigendian-no}"
2919 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2920 if enabled x86; then
2921     echo "yasm                      ${yasm-no}"
2922     echo "MMX enabled               ${mmx-no}"
2923     echo "MMX2 enabled              ${mmx2-no}"
2924     echo "3DNow! enabled            ${amd3dnow-no}"
2925     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2926     echo "SSE enabled               ${sse-no}"
2927     echo "SSSE3 enabled             ${ssse3-no}"
2928     echo "CMOV enabled              ${cmov-no}"
2929     echo "CMOV is fast              ${fast_cmov-no}"
2930     echo "EBX available             ${ebx_available-no}"
2931     echo "EBP available             ${ebp_available-no}"
2932     echo "10 operands supported     ${ten_operands-no}"
2933 fi
2934 if enabled arm; then
2935     echo "ARMv5TE enabled           ${armv5te-no}"
2936     echo "ARMv6 enabled             ${armv6-no}"
2937     echo "ARMv6T2 enabled           ${armv6t2-no}"
2938     echo "ARM VFP enabled           ${armvfp-no}"
2939     echo "IWMMXT enabled            ${iwmmxt-no}"
2940     echo "NEON enabled              ${neon-no}"
2941 fi
2942 if enabled mips; then
2943     echo "MMI enabled               ${mmi-no}"
2944 fi
2945 if enabled ppc; then
2946     echo "AltiVec enabled           ${altivec-no}"
2947     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2948     echo "dcbzl available           ${dcbzl-no}"
2949 fi
2950 if enabled sparc; then
2951     echo "VIS enabled               ${vis-no}"
2952 fi
2953 echo "debug symbols             ${debug-no}"
2954 echo "strip symbols             ${stripping-no}"
2955 echo "optimizations             ${optimizations-no}"
2956 echo "static                    ${static-no}"
2957 echo "shared                    ${shared-no}"
2958 echo "postprocessing support    ${postproc-no}"
2959 echo "new filter support        ${avfilter-no}"
2960 echo "network support           ${network-no}"
2961 echo "threading support         ${thread_type-no}"
2962 echo "SDL support               ${sdl-no}"
2963 echo "Sun medialib support      ${mlib-no}"
2964 echo "AVISynth enabled          ${avisynth-no}"
2965 echo "libdc1394 support         ${libdc1394-no}"
2966 echo "libdirac enabled          ${libdirac-no}"
2967 echo "libfaac enabled           ${libfaac-no}"
2968 echo "libgsm enabled            ${libgsm-no}"
2969 echo "libmp3lame enabled        ${libmp3lame-no}"
2970 echo "libnut enabled            ${libnut-no}"
2971 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2972 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2973 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2974 echo "librtmp enabled           ${librtmp-no}"
2975 echo "libschroedinger enabled   ${libschroedinger-no}"
2976 echo "libspeex enabled          ${libspeex-no}"
2977 echo "libtheora enabled         ${libtheora-no}"
2978 echo "libvorbis enabled         ${libvorbis-no}"
2979 echo "libvpx enabled            ${libvpx-no}"
2980 echo "libx264 enabled           ${libx264-no}"
2981 echo "libxavs enabled           ${libxavs-no}"
2982 echo "libxvid enabled           ${libxvid-no}"
2983 echo "zlib enabled              ${zlib-no}"
2984 echo "bzlib enabled             ${bzlib-no}"
2985 echo
2986
2987 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2988     echo "Enabled ${type}s:"
2989     eval list=\$$(toupper $type)_LIST
2990     print_enabled '_*' $list | sort | pr -3 -t
2991     echo
2992 done
2993
2994 license="LGPL version 2.1 or later"
2995 if enabled nonfree; then
2996     license="nonfree and unredistributable"
2997 elif enabled gplv3; then
2998     license="GPL version 3 or later"
2999 elif enabled lgplv3; then
3000     license="LGPL version 3 or later"
3001 elif enabled gpl; then
3002     license="GPL version 2 or later"
3003 fi
3004
3005 echo "License: $license"
3006
3007 echo "Creating config.mak and config.h..."
3008
3009 # build tree in object directory if source path is different from current one
3010 if enabled source_path_used; then
3011     DIRS="
3012         doc
3013         libavcodec
3014         libavcodec/$arch
3015         libavcore
3016         libavdevice
3017         libavfilter
3018         libavformat
3019         libavutil
3020         libavutil/$arch
3021         libpostproc
3022         libswscale
3023         libswscale/$arch
3024         tests
3025         tools
3026     "
3027     FILES="
3028         Makefile
3029         common.mak
3030         subdir.mak
3031         doc/texi2pod.pl
3032         libavcodec/Makefile
3033         libavcodec/${arch}/Makefile
3034         libavcore/Makefile
3035         libavdevice/Makefile
3036         libavfilter/Makefile
3037         libavformat/Makefile
3038         libavutil/Makefile
3039         libpostproc/Makefile
3040         libswscale/Makefile
3041     "
3042     map 'mkdir -p $v' $DIRS;
3043     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3044 fi
3045
3046 enabled stripping || strip="echo skipping strip"
3047
3048 cat > config.mak <<EOF
3049 # Automatically generated by configure - do not modify!
3050 ifndef FFMPEG_CONFIG_MAK
3051 FFMPEG_CONFIG_MAK=1
3052 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3053 prefix=$prefix
3054 LIBDIR=\$(DESTDIR)$libdir
3055 SHLIBDIR=\$(DESTDIR)$shlibdir
3056 INCDIR=\$(DESTDIR)$incdir
3057 BINDIR=\$(DESTDIR)$bindir
3058 DATADIR=\$(DESTDIR)$datadir
3059 MANDIR=\$(DESTDIR)$mandir
3060 SRC_PATH="$source_path"
3061 SRC_PATH_BARE=$source_path
3062 BUILD_ROOT="$PWD"
3063 CC_IDENT=$cc_ident
3064 ARCH=$arch
3065 CC=$cc
3066 AS=$as
3067 LD=$ld
3068 DEPCC=$dep_cc
3069 YASM=$yasmexe
3070 YASMDEP=$yasmexe
3071 AR=$ar
3072 RANLIB=$ranlib
3073 CP=cp -p
3074 LN_S=$ln_s
3075 STRIP=$strip
3076 CPPFLAGS=$CPPFLAGS
3077 CFLAGS=$CFLAGS
3078 ASFLAGS=$ASFLAGS
3079 CC_O=$CC_O
3080 LDFLAGS=$LDFLAGS
3081 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3082 SHFLAGS=$SHFLAGS
3083 YASMFLAGS=$YASMFLAGS
3084 BUILDSUF=$build_suffix
3085 FULLNAME=$FULLNAME
3086 LIBPREF=$LIBPREF
3087 LIBSUF=$LIBSUF
3088 LIBNAME=$LIBNAME
3089 SLIBPREF=$SLIBPREF
3090 SLIBSUF=$SLIBSUF
3091 EXESUF=$EXESUF
3092 EXTRA_VERSION=$extra_version
3093 DEPFLAGS=$DEPFLAGS
3094 CCDEP=$CCDEP
3095 ASDEP=$ASDEP
3096 CC_DEPFLAGS=$CC_DEPFLAGS
3097 AS_DEPFLAGS=$AS_DEPFLAGS
3098 HOSTCC=$host_cc
3099 HOSTCFLAGS=$host_cflags
3100 HOSTEXESUF=$HOSTEXESUF
3101 HOSTLDFLAGS=$host_ldflags
3102 HOSTLIBS=$host_libs
3103 TARGET_EXEC=$target_exec
3104 TARGET_PATH=$target_path
3105 SDL_LIBS=$sdl_libs
3106 SDL_CFLAGS=$sdl_cflags
3107 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3108 EXTRALIBS=$extralibs
3109 INSTALL=install
3110 LIBTARGET=${LIBTARGET}
3111 SLIBNAME=${SLIBNAME}
3112 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3113 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3114 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3115 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3116 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3117 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3118 SAMPLES=$samples
3119 EOF
3120
3121 get_version(){
3122     name=$1
3123     file=$source_path/$2
3124     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3125     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3126     lcname=$(tolower $name)
3127     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3128     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3129 }
3130
3131 get_version LIBSWSCALE  libswscale/swscale.h
3132 get_version LIBPOSTPROC libpostproc/postprocess.h
3133 get_version LIBAVCODEC  libavcodec/avcodec.h
3134 get_version LIBAVCORE   libavcore/avcore.h
3135 get_version LIBAVDEVICE libavdevice/avdevice.h
3136 get_version LIBAVFORMAT libavformat/avformat.h
3137 get_version LIBAVUTIL   libavutil/avutil.h
3138 get_version LIBAVFILTER libavfilter/avfilter.h
3139
3140 cat > $TMPH <<EOF
3141 /* Automatically generated by configure - do not modify! */
3142 #ifndef FFMPEG_CONFIG_H
3143 #define FFMPEG_CONFIG_H
3144 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3145 #define FFMPEG_LICENSE "$(c_escape $license)"
3146 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3147 #define CC_TYPE "$cc_type"
3148 #define CC_VERSION $cc_version
3149 #define restrict $_restrict
3150 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3151 #define EXTERN_PREFIX "${extern_prefix}"
3152 #define EXTERN_ASM ${extern_prefix}
3153 EOF
3154
3155 test -n "$malloc_prefix" &&
3156     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3157
3158 if enabled small || disabled optimizations; then
3159     echo "#undef  av_always_inline"  >> $TMPH
3160     echo "#define av_always_inline"  >> $TMPH
3161 fi
3162
3163 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3164 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3165 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3166                                       $CONFIG_EXTRA      \
3167                                       $DECODER_LIST      \
3168                                       $ENCODER_LIST      \
3169                                       $HWACCEL_LIST      \
3170                                       $PARSER_LIST       \
3171                                       $BSF_LIST          \
3172                                       $DEMUXER_LIST      \
3173                                       $MUXER_LIST        \
3174                                       $FILTER_LIST       \
3175                                       $PROTOCOL_LIST     \
3176                                       $INDEV_LIST        \
3177                                       $OUTDEV_LIST       \
3178
3179 cat >>config.mak <<EOF
3180 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3181 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3182 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3183 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3184 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3185 EOF
3186
3187 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3188 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3189
3190 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3191 cp_if_changed $TMPH config.h
3192 touch .config
3193
3194 cat > $TMPH <<EOF
3195 /* Generated by ffconf */
3196 #ifndef AVUTIL_AVCONFIG_H
3197 #define AVUTIL_AVCONFIG_H
3198 EOF
3199
3200 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3201
3202 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3203
3204 cp_if_changed $TMPH libavutil/avconfig.h
3205
3206 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
3207
3208 test -n "$WARNINGS" && printf "\n$WARNINGS"
3209
3210 # build pkg-config files
3211
3212 pkgconfig_generate(){
3213 name=$1
3214 shortname=${name#lib}${build_suffix}
3215 comment=$2
3216 version=$3
3217 libs=$4
3218 requires=$5
3219 enabled $shortname || return 0
3220 cat <<EOF > $name/$name.pc
3221 prefix=$prefix
3222 exec_prefix=\${prefix}
3223 libdir=$libdir
3224 includedir=$incdir
3225
3226 Name: $name
3227 Description: $comment
3228 Version: $version
3229 Requires: $(enabled shared || echo $requires)
3230 Requires.private: $(enabled shared && echo $requires)
3231 Conflicts:
3232 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3233 Libs.private: $(enabled shared && echo $libs)
3234 Cflags: -I\${includedir}
3235 EOF
3236 cat <<EOF > $name/$name-uninstalled.pc
3237 prefix=
3238 exec_prefix=
3239 libdir=\${pcfiledir}
3240 includedir=${source_path}
3241
3242 Name: $name
3243 Description: $comment
3244 Version: $version
3245 Requires: $requires
3246 Conflicts:
3247 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3248 Cflags: -I\${includedir}
3249 EOF
3250 }
3251
3252 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3253 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3254 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3255 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3256 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3257 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3258 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3259 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"