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_hflip
1496 set_ne_test_deps pixfmts_null
1497 set_ne_test_deps pixfmts_pad
1498 set_ne_test_deps pixfmts_scale
1499 set_ne_test_deps pixfmts_vflip
1500
1501 # default parameters
1502
1503 logfile="config.log"
1504
1505 # installation paths
1506 prefix_default="/usr/local"
1507 bindir_default='${prefix}/bin'
1508 datadir_default='${prefix}/share/ffmpeg'
1509 incdir_default='${prefix}/include'
1510 libdir_default='${prefix}/lib'
1511 mandir_default='${prefix}/share/man'
1512 shlibdir_default="$libdir_default"
1513
1514 # toolchain
1515 ar_default="ar"
1516 cc_default="gcc"
1517 cc_version=\"unknown\"
1518 host_cc_default="gcc"
1519 ln_s="ln -sf"
1520 nm_default="nm"
1521 objformat="elf"
1522 ranlib="ranlib"
1523 strip_default="strip"
1524 yasmexe="yasm"
1525 nogas=":"
1526
1527 nm_opts='-g'
1528
1529 # machine
1530 arch_default=$(uname -m)
1531 cpu="generic"
1532
1533 # OS
1534 target_os_default=$(tolower $(uname -s))
1535 host_os=$target_os_default
1536
1537 # configurable options
1538 enable avcodec
1539 enable avcore
1540 enable avdevice
1541 enable avfilter
1542 enable avformat
1543 enable avutil
1544 enable asm
1545 enable debug
1546 enable doc
1547 enable fastdiv
1548 enable ffmpeg
1549 enable ffplay
1550 enable ffprobe
1551 enable ffserver
1552 enable mpegaudio_hp
1553 enable network
1554 enable optimizations
1555 enable protocols
1556 enable static
1557 enable stripping
1558 enable swscale
1559 enable swscale_alpha
1560
1561 # build settings
1562 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1563 FFSERVERLDFLAGS=-Wl,-E
1564 LIBPREF="lib"
1565 LIBSUF=".a"
1566 FULLNAME='$(NAME)$(BUILDSUF)'
1567 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1568 SLIBPREF="lib"
1569 SLIBSUF=".so"
1570 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1571 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1572 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1573 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1574
1575 CC_O='-o $@'
1576
1577 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1578 host_libs='-lm'
1579
1580 target_path='$(CURDIR)'
1581
1582 # since the object filename is not given with the -MM flag, the compiler
1583 # is only able to print the basename, and we must add the path ourselves
1584 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1585 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1586
1587 # find source path
1588 source_path="$(dirname "$0")"
1589 enable source_path_used
1590 if test -f configure; then
1591     source_path="$(pwd)"
1592     disable source_path_used
1593 else
1594     source_path="$(cd "$source_path"; pwd)"
1595     echo "$source_path" | grep -q '[[:blank:]]' &&
1596         die "Out of tree builds are impossible with whitespace in source path."
1597     test -e "$source_path/config.h" &&
1598         die "Out of tree builds are impossible with config.h in source dir."
1599 fi
1600
1601 for v in "$@"; do
1602     r=${v#*=}
1603     l=${v%"$r"}
1604     r=$(sh_quote "$r")
1605     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1606 done
1607
1608 find_things(){
1609     thing=$1
1610     pattern=$2
1611     file=$source_path/$3
1612     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1613 }
1614
1615 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1616 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1617 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1618 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1619 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1620 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1621 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1622 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1623 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1624 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1625 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1626
1627 find_tests(){
1628     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1629 }
1630
1631 ACODEC_TESTS=$(find_tests acodec)
1632 VCODEC_TESTS=$(find_tests vsynth1)
1633 LAVF_TESTS=$(find_tests lavf)
1634 LAVFI_TESTS=$(find_tests lavfi)
1635 SEEK_TESTS=$(find_tests seek seek_)
1636
1637 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1638
1639 for n in $COMPONENT_LIST; do
1640     v=$(toupper ${n%s})_LIST
1641     eval enable \$$v
1642     eval ${n}_if_any="\$$v"
1643 done
1644
1645 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1646
1647 die_unknown(){
1648     echo "Unknown option \"$1\"."
1649     echo "See $0 --help for available options."
1650     exit 1
1651 }
1652
1653 show_list() {
1654     suffix=_$1
1655     shift
1656     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1657     exit 0
1658 }
1659
1660 for opt do
1661     optval="${opt#*=}"
1662     case "$opt" in
1663     --extra-ldflags=*) add_ldflags $optval
1664     ;;
1665     --extra-libs=*) add_extralibs $optval
1666     ;;
1667     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1668     ;;
1669     --enable-debug=*) debuglevel="$optval"
1670     ;;
1671     --disable-everything)
1672     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1673     ;;
1674     --enable-*=*|--disable-*=*)
1675     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1676     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1677     eval list=\$$(toupper $thing)_LIST
1678     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1679     $action $(filter "$name" $list)
1680     ;;
1681     --enable-?*|--disable-?*)
1682     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1683     if is_in $option $COMPONENT_LIST; then
1684         test $action = disable && action=unset
1685         eval $action \$$(toupper ${option%s})_LIST
1686     elif is_in $option $CMDLINE_SELECT; then
1687         $action $option
1688     else
1689         die_unknown $opt
1690     fi
1691     ;;
1692     --list-*)
1693         NAME="${opt#--list-}"
1694         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1695         NAME=${NAME%s}
1696         eval show_list $NAME \$$(toupper $NAME)_LIST
1697     ;;
1698     --help|-h) show_help
1699     ;;
1700     *)
1701     optname="${opt%%=*}"
1702     optname="${optname#--}"
1703     optname=$(echo "$optname" | sed 's/-/_/g')
1704     if is_in $optname $CMDLINE_SET; then
1705         eval $optname='$optval'
1706     elif is_in $optname $CMDLINE_APPEND; then
1707         append $optname "$optval"
1708     else
1709          die_unknown $opt
1710     fi
1711     ;;
1712     esac
1713 done
1714
1715 disabled logging && logfile=/dev/null
1716
1717 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1718 set >> $logfile
1719
1720 test -n "$cross_prefix" && enable cross_compile
1721
1722 if enabled cross_compile; then
1723     test -n "$arch" && test -n "$target_os" ||
1724         die "Must specify target arch and OS when cross-compiling"
1725 fi
1726
1727 set_default arch target_os
1728
1729 ar_default="${cross_prefix}${ar_default}"
1730 cc_default="${cross_prefix}${cc_default}"
1731 nm_default="${cross_prefix}${nm_default}"
1732 ranlib="${cross_prefix}${ranlib}"
1733 strip_default="${cross_prefix}${strip_default}"
1734
1735 sysinclude_default="${sysroot}/usr/include"
1736
1737 set_default cc nm strip sysinclude
1738 enabled cross_compile || host_cc_default=$cc
1739 set_default host_cc
1740
1741 exesuf() {
1742     case $1 in
1743         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1744     esac
1745 }
1746
1747 EXESUF=$(exesuf $target_os)
1748 HOSTEXESUF=$(exesuf $host_os)
1749
1750 # set temporary file name
1751 : ${TMPDIR:=$TEMPDIR}
1752 : ${TMPDIR:=$TMP}
1753 : ${TMPDIR:=/tmp}
1754
1755 if ! check_cmd type mktemp; then
1756     # simple replacement for missing mktemp
1757     # NOT SAFE FOR GENERAL USE
1758     mktemp(){
1759         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1760     }
1761 fi
1762
1763 tmpfile(){
1764     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1765         (set -C; exec > $tmp) 2>/dev/null ||
1766         die "Unable to create temporary file in $TMPDIR."
1767     append TMPFILES $tmp
1768     eval $1=$tmp
1769 }
1770
1771 trap 'rm -f -- $TMPFILES' EXIT
1772 trap exit HUP INT TERM
1773
1774 tmpfile TMPC  .c
1775 tmpfile TMPE  $EXESUF
1776 tmpfile TMPH  .h
1777 tmpfile TMPO  .o
1778 tmpfile TMPS  .S
1779 tmpfile TMPV  .ver
1780 tmpfile TMPSH .sh
1781
1782 unset -f mktemp
1783
1784 # make sure we can execute files in $TMPDIR
1785 cat > $TMPSH 2>> $logfile <<EOF
1786 #! /bin/sh
1787 EOF
1788 chmod +x $TMPSH >> $logfile 2>&1
1789 if ! $TMPSH >> $logfile 2>&1; then
1790     cat <<EOF
1791 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1792 variable to another directory and make sure that it is not mounted noexec.
1793 EOF
1794     die "Sanity test failed."
1795 fi
1796
1797 filter_cflags=echo
1798 filter_cppflags=echo
1799 filter_asflags=echo
1800
1801 if   $cc -v 2>&1 | grep -qi ^gcc; then
1802     cc_type=gcc
1803     cc_version=__VERSION__
1804     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1805     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1806     if ! $cc -dumpversion | grep -q '^2\.'; then
1807         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1808         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1809     fi
1810     speed_cflags='-O3'
1811     size_cflags='-Os'
1812 elif $cc --version 2>/dev/null | grep -q Intel; then
1813     cc_type=icc
1814     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1815     cc_ident=$($cc --version | head -n1)
1816     CC_DEPFLAGS='-MMD'
1817     AS_DEPFLAGS='-MMD'
1818     speed_cflags='-O3'
1819     size_cflags='-Os'
1820     noopt_cflags='-O1'
1821 elif $cc -v 2>&1 | grep -q xlc; then
1822     cc_type=xlc
1823     cc_version="AV_STRINGIFY(__IBMC__)"
1824     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1825     speed_cflags='-O5'
1826     size_cflags='-O5 -qcompact'
1827 elif $cc -V 2>/dev/null | grep -q Compaq; then
1828     cc_type=ccc
1829     cc_version="AV_STRINGIFY(__DECC_VER)"
1830     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1831     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1832     debuglevel=3
1833     add_ldflags -Wl,-z,now # calls to libots crash without this
1834     speed_cflags='-fast'
1835     size_cflags='-O1'
1836 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1837     test -d "$sysroot" || die "No valid sysroot specified."
1838     cc_type=armcc
1839     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1840     cc_ident=$($cc --vsn | head -n1)
1841     armcc_conf="$PWD/armcc.conf"
1842     $cc --arm_linux_configure                 \
1843         --arm_linux_config_file="$armcc_conf" \
1844         --configure_sysroot="$sysroot"        \
1845         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1846         die "Error creating armcc configuration file."
1847     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1848     as_default="${cross_prefix}gcc"
1849     CC_DEPFLAGS='-MMD'
1850     AS_DEPFLAGS='-MMD'
1851     speed_cflags='-O3'
1852     size_cflags='-Os'
1853 elif $cc -version 2>/dev/null | grep -q TMS470; then
1854     cc_type=tms470
1855     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1856     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1857     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1858     CC_O='-fr=$(@D)'
1859     as_default="${cross_prefix}gcc"
1860     ld_default="${cross_prefix}gcc"
1861     TMPO=$(basename $TMPC .c).o
1862     append TMPFILES $TMPO
1863     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1864     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1865     AS_DEPFLAGS='-MMD'
1866     speed_cflags='-O3 -mf=5'
1867     size_cflags='-O3 -mf=2'
1868     filter_cflags=tms470_flags
1869     tms470_flags(){
1870         for flag; do
1871             case $flag in
1872                 -march=*|-mcpu=*)
1873                     case "${flag#*=}" in
1874                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1875                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1876                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1877                         armv6*|arm11*)          echo -mv=6   ;;
1878                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1879                                                 echo -mv=5e  ;;
1880                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1881                     esac
1882                     ;;
1883                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1884                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1885                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1886                 -msoft-float)   echo --float_support=vfplib       ;;
1887                 -O[0-3]|-mf=*)  echo $flag                        ;;
1888                 -g)             echo -g -mn                       ;;
1889                 -pds=*)         echo $flag                        ;;
1890             esac
1891         done
1892     }
1893 elif $cc -v 2>&1 | grep -q clang; then
1894     cc_type=clang
1895     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1896         cc_version=__clang_version__ || cc_version=__VERSION__
1897     cc_ident=$($cc --version | head -n1)
1898     CC_DEPFLAGS='-MMD'
1899     AS_DEPFLAGS='-MMD'
1900     speed_cflags='-O3'
1901     size_cflags='-Os'
1902 elif $cc -V 2>&1 | grep -q Sun; then
1903     cc_type=suncc
1904     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1905     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1906     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1907     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1908     speed_cflags='-O5'
1909     size_cflags='-O5 -xspace'
1910     filter_cflags=suncc_flags
1911     suncc_flags(){
1912         for flag; do
1913             case $flag in
1914                 -march=*|-mcpu=*)
1915                     case "${flag#*=}" in
1916                         native)                   echo -xtarget=native       ;;
1917                         v9|niagara)               echo -xarch=sparc          ;;
1918                         ultrasparc)               echo -xarch=sparcvis       ;;
1919                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1920                         i586|pentium)             echo -xchip=pentium        ;;
1921                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1922                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1923                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1924                         pentium4*)          echo -xtarget=pentium4           ;;
1925                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1926                         *-sse3)             echo -xarch=sse3                 ;;
1927                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1928                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1929                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1930                         k8|opteron|athlon64|athlon-fx)
1931                                                   echo -xarch=sse2a          ;;
1932                         athlon*)                  echo -xarch=pentium_proa   ;;
1933                     esac
1934                     ;;
1935                 -std=c99)             echo -xc99              ;;
1936                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1937                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1938                 -W*,*)                echo $flag              ;;
1939                 -f*-*|-W*)                                    ;;
1940                 *)                    echo $flag              ;;
1941             esac
1942         done
1943     }
1944 elif $cc -v 2>&1 | grep -q PathScale; then
1945     cc_type=pathscale
1946     cc_version=__PATHSCALE__
1947     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1948     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1949     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950     speed_cflags='-O2'
1951     size_cflags='-Os'
1952 fi
1953
1954 test -n "$cc_type" && enable $cc_type ||
1955     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1956
1957 : ${as_default:=$cc}
1958 : ${dep_cc_default:=$cc}
1959 : ${ld_default:=$cc}
1960 set_default ar as dep_cc ld
1961
1962 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1963 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1964
1965 add_cflags $extra_cflags
1966 add_asflags $extra_cflags
1967
1968 if test -n "$sysroot"; then
1969     case "$cc_type" in
1970         gcc)
1971             add_cppflags --sysroot="$sysroot"
1972             add_ldflags --sysroot="$sysroot"
1973         ;;
1974         tms470)
1975             add_cppflags -I"$sysinclude"
1976             add_ldflags  --sysroot="$sysroot"
1977         ;;
1978         clang)
1979             add_cppflags -isysroot "$sysroot"
1980             add_ldflags -isysroot "$sysroot"
1981         ;;
1982     esac
1983 fi
1984
1985 if test "$cpu" = host; then
1986     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1987
1988     case "$cc_type" in
1989         gcc)
1990             check_native(){
1991                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1992                 sed -n "/$1=/{
1993                             s/.*$1=\\([^ ]*\\).*/\\1/
1994                             p
1995                             q
1996                         }" $TMPE
1997             }
1998             cpu=$(check_native -march || check_native -mcpu)
1999         ;;
2000     esac
2001
2002     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2003 fi
2004
2005 # Deal with common $arch aliases
2006 case "$arch" in
2007     arm*)
2008         arch="arm"
2009     ;;
2010     mips|mipsel|IP*)
2011         arch="mips"
2012     ;;
2013     mips64*)
2014         arch="mips"
2015         subarch="mips64"
2016     ;;
2017     parisc|hppa)
2018         arch="parisc"
2019     ;;
2020     parisc64|hppa64)
2021         arch="parisc"
2022         subarch="parisc64"
2023     ;;
2024     "Power Macintosh"|ppc|powerpc)
2025         arch="ppc"
2026     ;;
2027     ppc64|powerpc64)
2028         arch="ppc"
2029         subarch="ppc64"
2030     ;;
2031     s390|s390x)
2032         arch="s390"
2033     ;;
2034     sh4|sh)
2035         arch="sh4"
2036     ;;
2037     sun4u|sparc64)
2038         arch="sparc"
2039         subarch="sparc64"
2040     ;;
2041     i[3-6]86|i86pc|BePC|x86_64|amd64)
2042         arch="x86"
2043     ;;
2044 esac
2045
2046 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2047 enable $arch
2048
2049 # Add processor-specific flags
2050 if test "$cpu" = generic; then
2051     : do nothing
2052 elif enabled ppc; then
2053
2054     case $(tolower $cpu) in
2055         601|ppc601|powerpc601)
2056             cpuflags="-mcpu=601"
2057             disable altivec
2058         ;;
2059         603*|ppc603*|powerpc603*)
2060             cpuflags="-mcpu=603"
2061             disable altivec
2062         ;;
2063         604*|ppc604*|powerpc604*)
2064             cpuflags="-mcpu=604"
2065             disable altivec
2066         ;;
2067         g3|75*|ppc75*|powerpc75*)
2068             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2069             disable altivec
2070         ;;
2071         g4|745*|ppc745*|powerpc745*)
2072             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2073         ;;
2074         74*|ppc74*|powerpc74*)
2075             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2076         ;;
2077         g5|970|ppc970|powerpc970|power4*)
2078             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2079         ;;
2080         cell)
2081             cpuflags="-mcpu=cell"
2082             enable ldbrx
2083         ;;
2084         e500v2)
2085             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2086             disable altivec
2087         ;;
2088         e500)
2089             cpuflags="-mcpu=8540 -mhard-float"
2090             disable altivec
2091         ;;
2092     esac
2093
2094 elif enabled x86; then
2095
2096     case $cpu in
2097         i[345]86|pentium)
2098             cpuflags="-march=$cpu"
2099             disable mmx
2100         ;;
2101         # targets that do NOT support conditional mov (cmov)
2102         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2103             cpuflags="-march=$cpu"
2104             disable cmov
2105         ;;
2106         # targets that do support conditional mov (cmov)
2107         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2108             cpuflags="-march=$cpu"
2109             enable cmov
2110             enable fast_cmov
2111         ;;
2112         # targets that do support conditional mov but on which it's slow
2113         pentium4|pentium4m|prescott|nocona)
2114             cpuflags="-march=$cpu"
2115             enable cmov
2116             disable fast_cmov
2117         ;;
2118     esac
2119
2120 elif enabled sparc; then
2121
2122     case $cpu in
2123         niagara)
2124             cpuflags="-mcpu=$cpu"
2125             disable vis
2126         ;;
2127         sparc64)
2128             cpuflags="-mcpu=v9"
2129         ;;
2130     esac
2131
2132 elif enabled arm; then
2133
2134     case $cpu in
2135         armv*)
2136             cpuflags="-march=$cpu"
2137             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2138         ;;
2139         *)
2140             cpuflags="-mcpu=$cpu"
2141             case $cpu in
2142                 cortex-a*)                               subarch=armv7a  ;;
2143                 cortex-r*)                               subarch=armv7r  ;;
2144                 cortex-m*)                               subarch=armv7m  ;;
2145                 arm11*)                                  subarch=armv6   ;;
2146                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2147                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2148             esac
2149         ;;
2150     esac
2151
2152 elif enabled alpha; then
2153
2154     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2155
2156 elif enabled bfin; then
2157
2158     cpuflags="-mcpu=$cpu"
2159
2160 elif enabled mips; then
2161
2162     cpuflags="-march=$cpu"
2163
2164 elif enabled avr32; then
2165
2166     case $cpu in
2167         ap7[02]0[0-2])
2168             subarch="avr32_ap"
2169             cpuflags="-mpart=$cpu"
2170         ;;
2171         ap)
2172             subarch="avr32_ap"
2173             cpuflags="-march=$cpu"
2174         ;;
2175         uc3[ab]*)
2176             subarch="avr32_uc"
2177             cpuflags="-mcpu=$cpu"
2178         ;;
2179         uc)
2180             subarch="avr32_uc"
2181             cpuflags="-march=$cpu"
2182         ;;
2183     esac
2184
2185 fi
2186
2187 add_cflags $cpuflags
2188 add_asflags $cpuflags
2189
2190 # compiler sanity check
2191 check_exec <<EOF
2192 int main(void){ return 0; }
2193 EOF
2194 if test "$?" != 0; then
2195     echo "$cc is unable to create an executable file."
2196     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2197         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2198         echo "Only do this if you know what cross compiling means."
2199     fi
2200     die "C compiler test failed."
2201 fi
2202
2203 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2204 check_cflags -std=c99
2205 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2206 #include <stdlib.h>
2207 EOF
2208 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2209 #include <stdlib.h>
2210 EOF
2211
2212 check_host_cflags -std=c99
2213
2214 case "$arch" in
2215     alpha|ia64|mips|parisc|sparc)
2216         spic=$shared
2217     ;;
2218     x86)
2219         subarch="x86_32"
2220         check_cc <<EOF && subarch="x86_64"
2221         int test[(int)sizeof(char*) - 7];
2222 EOF
2223         if test "$subarch" = "x86_64"; then
2224             spic=$shared
2225         fi
2226     ;;
2227 esac
2228
2229 enable $subarch
2230 enabled spic && enable pic
2231
2232 # OS specific
2233 case $target_os in
2234     haiku)
2235         prefix_default="/boot/common"
2236         network_extralibs="-lnetwork"
2237         ;;
2238     sunos)
2239         FFSERVERLDFLAGS=""
2240         SHFLAGS='-shared -Wl,-h,$$(@F)'
2241         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2242         network_extralibs="-lsocket -lnsl"
2243         add_cppflags -D__EXTENSIONS__
2244         nm_opts='-P -g'
2245         ;;
2246     netbsd)
2247         oss_indev_extralibs="-lossaudio"
2248         oss_outdev_extralibs="-lossaudio"
2249         add_cppflags -D_XOPEN_SOURCE=600
2250         ;;
2251     openbsd)
2252         enable malloc_aligned
2253         # On OpenBSD 4.5. the compiler does not use PIC unless
2254         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2255         # however the generated executable will not do anything
2256         # (simply quits with exit-code 1, no crash, no output).
2257         # Thus explicitly enable PIC here.
2258         enable pic
2259         SHFLAGS='-shared'
2260         oss_indev_extralibs="-lossaudio"
2261         oss_outdev_extralibs="-lossaudio"
2262         ;;
2263     freebsd|dragonfly)
2264         enable malloc_aligned
2265         ;;
2266     bsd/os)
2267         add_extralibs -lpoll -lgnugetopt
2268         strip="strip -d"
2269         ;;
2270     darwin)
2271         enable malloc_aligned
2272         gas="gas-preprocessor.pl $cc"
2273         enabled ppc && add_asflags -force_cpusubtype_ALL
2274         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2275         strip="${strip} -x"
2276         add_ldflags -Wl,-dynamic,-search_paths_first
2277         SLIBSUF=".dylib"
2278         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2279         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2280         FFSERVERLDFLAGS=-Wl,-bind_at_load
2281         objformat="macho"
2282         enabled x86_64 && objformat="macho64"
2283         enabled_any pic shared ||
2284             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2285         ;;
2286     mingw32*)
2287         if test $target_os = "mingw32ce"; then
2288             disable network
2289         else
2290             target_os=mingw32
2291         fi
2292         LIBTARGET=i386
2293         if enabled x86_64; then
2294             enable malloc_aligned
2295             LIBTARGET=x64
2296         elif enabled arm; then
2297             LIBTARGET=arm
2298         fi
2299         shlibdir_default="$bindir_default"
2300         disable ffserver
2301         SLIBPREF=""
2302         SLIBSUF=".dll"
2303         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2304         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2305         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2306         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2307             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2308             install -d "$(LIBDIR)"; \
2309             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2310         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2311         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'
2312         objformat="win32"
2313         enable dos_paths
2314         check_cflags -fno-common
2315         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2316                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2317                 die "ERROR: MinGW runtime version must be >= 3.15."
2318         ;;
2319     cygwin*)
2320         target_os=cygwin
2321         shlibdir_default="$bindir_default"
2322         SLIBPREF="cyg"
2323         SLIBSUF=".dll"
2324         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2325         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2326         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2327         objformat="win32"
2328         enable dos_paths
2329         check_cflags -fno-common
2330         ;;
2331     *-dos|freedos|opendos)
2332         disable ffplay ffserver
2333         disable $INDEV_LIST $OUTDEV_LIST
2334         network_extralibs="-lsocket"
2335         objformat="coff"
2336         enable dos_paths
2337         ;;
2338     linux)
2339         enable dv1394
2340         ;;
2341     irix*)
2342         target_os=irix
2343         ranlib="echo ignoring ranlib"
2344         ;;
2345     os/2*)
2346         strip="lxlite"
2347         ln_s="cp -f"
2348         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2349         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2350         FFSERVERLDFLAGS=""
2351         LIBSUF="_s.a"
2352         SLIBPREF=""
2353         SLIBSUF=".dll"
2354         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2355         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2356         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2357           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2358           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2359           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2360           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2361           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2362         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2363           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2364         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2365         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2366         enable dos_paths
2367         ;;
2368     gnu/kfreebsd)
2369         ;;
2370     gnu)
2371         ;;
2372     none)
2373         ;;
2374     *)
2375         die "Unknown OS '$target_os'."
2376         ;;
2377 esac
2378
2379 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2380
2381 set_default $PATHS_LIST
2382
2383 # we need to build at least one lib type
2384 if ! enabled_any static shared; then
2385     cat <<EOF
2386 At least one library type must be built.
2387 Specify --enable-static to build the static libraries or --enable-shared to
2388 build the shared libraries as well. To only build the shared libraries specify
2389 --disable-static in addition to --enable-shared.
2390 EOF
2391     exit 1;
2392 fi
2393
2394 disabled static && LIBNAME=""
2395
2396 die_license_disabled() {
2397     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2398 }
2399
2400 die_license_disabled gpl libx264
2401 die_license_disabled gpl libxavs
2402 die_license_disabled gpl libxvid
2403 die_license_disabled gpl postproc
2404 die_license_disabled gpl x11grab
2405
2406 die_license_disabled nonfree libfaac
2407
2408 die_license_disabled version3 libopencore_amrnb
2409 die_license_disabled version3 libopencore_amrwb
2410
2411 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2412
2413 check_deps $ARCH_EXT_LIST
2414
2415 disabled optimizations || check_cflags -fomit-frame-pointer
2416
2417 enable_pic() {
2418     enable pic
2419     add_cppflags -DPIC
2420     add_cflags   -fPIC
2421     add_asflags  -fPIC
2422 }
2423
2424 enabled pic && enable_pic
2425
2426 check_cc <<EOF || die "Symbol mangling check failed."
2427 int ff_extern;
2428 EOF
2429 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2430 extern_prefix=${sym%%ff_extern*}
2431
2432 check_cc <<EOF && enable inline_asm
2433 void foo(void) { __asm__ volatile ("" ::); }
2434 EOF
2435
2436 _restrict=
2437 for restrict_keyword in restrict __restrict__ __restrict; do
2438     check_cc <<EOF && _restrict=$restrict_keyword && break
2439 void foo(char * $restrict_keyword p);
2440 EOF
2441 done
2442
2443 check_cc <<EOF && enable attribute_packed
2444 struct { int x; } __attribute__((packed)) x;
2445 EOF
2446
2447 check_cc <<EOF && enable attribute_may_alias
2448 union { int x; } __attribute__((may_alias)) x;
2449 EOF
2450
2451 check_cc <<EOF || die "endian test failed"
2452 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2453 EOF
2454 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2455
2456 if enabled alpha; then
2457
2458     check_cflags -mieee
2459
2460 elif enabled arm; then
2461
2462     check_cflags -marm
2463     nogas=die
2464
2465     check_ld <<EOF && enable vfp_args
2466 __asm__ (".eabi_attribute 28, 1");
2467 int main(void) { return 0; }
2468 EOF
2469
2470     # We have to check if pld is a nop and disable it.
2471     check_asm pld '"pld [r0]"'
2472
2473     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2474     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2475     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2476     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2477     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2478     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2479
2480     enabled_all armv6t2 shared !pic && enable_pic
2481
2482 elif enabled mips; then
2483
2484     check_asm loongson '"dmult.g $1, $2, $3"'
2485     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2486
2487 elif enabled ppc; then
2488
2489     enable local_aligned_8 local_aligned_16
2490
2491     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2492     check_asm ibm_asm   '"add 0, 0, 0"'
2493     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2494     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2495
2496     # AltiVec flags: The FSF version of GCC differs from the Apple version
2497     if enabled altivec; then
2498         nogas=warn
2499         check_cflags -maltivec -mabi=altivec &&
2500         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2501         check_cflags -faltivec
2502
2503         # check if our compiler supports Motorola AltiVec C API
2504         check_cc <<EOF || disable altivec
2505 $inc_altivec_h
2506 int main(void) {
2507     vector signed int v1, v2, v3;
2508     v1 = vec_add(v2,v3);
2509     return 0;
2510 }
2511 EOF
2512
2513         # check if our compiler supports braces for vector declarations
2514         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2515 $inc_altivec_h
2516 int main (void) { (vector int) {1}; return 0; }
2517 EOF
2518     fi
2519
2520 elif enabled sparc; then
2521
2522     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2523         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2524
2525 elif enabled x86; then
2526
2527     enable local_aligned_8 local_aligned_16
2528
2529     # check whether EBP is available on x86
2530     # As 'i' is stored on the stack, this program will crash
2531     # if the base pointer is used to access it because the
2532     # base pointer is cleared in the inline assembly code.
2533     check_exec_crash <<EOF && enable ebp_available
2534     volatile int i=0;
2535     __asm__ volatile (
2536         "xorl %%ebp, %%ebp"
2537     ::: "%ebp");
2538     return i;
2539 EOF
2540
2541     # check whether EBX is available on x86
2542     check_asm ebx_available '""::"b"(0)' &&
2543         check_asm ebx_available '"":::"%ebx"'
2544
2545     # check whether more than 10 operands are supported
2546     check_cc <<EOF && enable ten_operands
2547 int main(void) {
2548     int x=0;
2549     __asm__ volatile(
2550         ""
2551         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2552     );
2553     return 0;
2554 }
2555 EOF
2556
2557     # check whether binutils is new enough to compile SSSE3/MMX2
2558     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2559     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2560
2561     check_asm bswap '"bswap %%eax" ::: "%eax"'
2562
2563     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2564     enabled     x86_64        && append YASMFLAGS "-m amd64"
2565     enabled     pic           && append YASMFLAGS "-DPIC"
2566     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2567     case "$objformat" in
2568         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2569     esac
2570     if ! disabled yasm; then
2571         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2572             warn "yasm not found, performance will suffer"
2573     fi
2574
2575     case "$cpu" in
2576         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2577             disable fast_clz
2578         ;;
2579     esac
2580
2581 fi
2582
2583 if enabled asm; then
2584     as=${gas:=$as}
2585     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2586         $nogas "GNU assembler not found, install gas-preprocessor"
2587 fi
2588
2589 if check_func dlopen; then
2590     ldl=
2591 elif check_func dlopen -ldl; then
2592     ldl=-ldl
2593 fi
2594
2595 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2596 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2597
2598 check_func  fcntl
2599 check_func  fork
2600 check_func  getaddrinfo $network_extralibs
2601 check_func  gethrtime
2602 check_func  getrusage
2603 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2604 check_func  inet_aton $network_extralibs
2605 check_func  isatty
2606 check_func  ${malloc_prefix}memalign            && enable memalign
2607 check_func  mkstemp
2608 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2609 check_func  setrlimit
2610 check_func  strerror_r
2611 check_func_headers io.h setmode
2612 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2613 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2614 check_func_headers windows.h GetProcessTimes
2615 check_func_headers windows.h VirtualAlloc
2616
2617 check_header conio.h
2618 check_header dlfcn.h
2619 check_header dxva2api.h
2620 check_header malloc.h
2621 check_header poll.h
2622 check_header sys/mman.h
2623 check_header sys/resource.h
2624 check_header sys/select.h
2625 check_header termios.h
2626 check_header vdpau/vdpau.h
2627 check_header vdpau/vdpau_x11.h
2628 check_header X11/extensions/XvMClib.h
2629
2630 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2631
2632 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2633      enabled_any $need_memalign ; then
2634     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2635 fi
2636
2637 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2638 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2639
2640 # check for some common methods of building with pthread support
2641 # do this before the optional library checks as some of them require pthreads
2642 if ! disabled pthreads && ! enabled w32threads; then
2643     enable pthreads
2644     if check_func pthread_create; then
2645         :
2646     elif check_func pthread_create -pthread; then
2647         add_cflags -pthread
2648         add_extralibs -pthread
2649     elif check_func pthread_create -pthreads; then
2650         add_cflags -pthreads
2651         add_extralibs -pthreads
2652     elif check_func pthread_create -lpthreadGC2; then
2653         add_extralibs -lpthreadGC2
2654     elif ! check_lib pthread.h pthread_create -lpthread; then
2655         disable pthreads
2656     fi
2657 fi
2658
2659 for thread in $THREADS_LIST; do
2660     if enabled $thread; then
2661         test -n "$thread_type" &&
2662             die "ERROR: Only one thread type must be selected." ||
2663             thread_type="$thread"
2664     fi
2665 done
2666
2667 check_lib math.h sin -lm
2668 disabled vaapi || check_lib va/va.h vaInitialize -lva
2669
2670 check_mathfunc exp2
2671 check_mathfunc exp2f
2672 check_mathfunc llrint
2673 check_mathfunc llrintf
2674 check_mathfunc log2
2675 check_mathfunc log2f
2676 check_mathfunc lrint
2677 check_mathfunc lrintf
2678 check_mathfunc round
2679 check_mathfunc roundf
2680 check_mathfunc truncf
2681
2682 # these are off by default, so fail if requested and not available
2683 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2684 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2685                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2686                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2687 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2688 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2689 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2690 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2691 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2692 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2693 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2694 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2695                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2696 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2697                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2698 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2699 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2700 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2701 enabled libvpx     && {
2702     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2703                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2704     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2705                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2706 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2707                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2708                         die "ERROR: libx264 version must be >= 0.98."; }
2709 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2710 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2711 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2712
2713 # libdc1394 check
2714 if enabled libdc1394; then
2715     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2716         enable libdc1394_2; } ||
2717     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2718         enable libdc1394_1; } ||
2719     die "ERROR: No version of libdc1394 found "
2720 fi
2721
2722 SDL_CONFIG="${cross_prefix}sdl-config"
2723 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2724     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2725     sdl_libs=$("${SDL_CONFIG}" --libs)
2726     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2727     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2728     enable sdl &&
2729     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2730 fi
2731
2732 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2733
2734 if enabled network; then
2735     check_type "sys/types.h sys/socket.h" socklen_t
2736     check_type netdb.h "struct addrinfo"
2737     check_type netinet/in.h "struct ipv6_mreq"
2738     check_type netinet/in.h "struct sockaddr_in6"
2739     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2740     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2741     # Prefer arpa/inet.h over winsock2
2742     if check_header arpa/inet.h ; then
2743         check_func closesocket
2744     elif check_header winsock2.h ; then
2745         check_func_headers winsock2.h closesocket -lws2 && \
2746             network_extralibs="-lws2" || \
2747         { check_func_headers winsock2.h closesocket -lws2_32 && \
2748             network_extralibs="-lws2_32"; }
2749         check_type ws2tcpip.h socklen_t
2750         check_type ws2tcpip.h "struct addrinfo"
2751         check_type ws2tcpip.h "struct ipv6_mreq"
2752         check_type ws2tcpip.h "struct sockaddr_in6"
2753         check_type ws2tcpip.h "struct sockaddr_storage"
2754         check_struct winsock2.h "struct sockaddr" sa_len
2755     else
2756         disable network
2757     fi
2758 fi
2759
2760 check_header linux/videodev.h
2761 check_header linux/videodev2.h
2762 check_header sys/videoio.h
2763
2764 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2765 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2766 # w32api 3.12 had it defined wrong
2767 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2768
2769 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2770 { check_header dev/bktr/ioctl_meteor.h &&
2771   check_header dev/bktr/ioctl_bt848.h; } ||
2772 { check_header machine/ioctl_meteor.h &&
2773   check_header machine/ioctl_bt848.h; } ||
2774 { check_header dev/video/meteor/ioctl_meteor.h &&
2775   check_header dev/video/bktr/ioctl_bt848.h; } ||
2776 check_header dev/ic/bt8xx.h
2777
2778 check_header sys/soundcard.h
2779 check_header soundcard.h
2780
2781 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2782
2783 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2784
2785 enabled x11grab                         &&
2786 check_header X11/Xlib.h                 &&
2787 check_header X11/extensions/XShm.h      &&
2788 check_header X11/extensions/Xfixes.h    &&
2789 check_func XOpenDisplay -lX11           &&
2790 check_func XShmCreateImage -lX11 -lXext &&
2791 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2792
2793 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2794 check_cpp_condition \
2795     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2796     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2797       disable vdpau; }
2798 fi
2799
2800 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2801
2802 # add some useful compiler flags if supported
2803 check_cflags -Wdeclaration-after-statement
2804 check_cflags -Wall
2805 check_cflags -Wno-parentheses
2806 check_cflags -Wno-switch
2807 check_cflags -Wdisabled-optimization
2808 check_cflags -Wpointer-arith
2809 check_cflags -Wredundant-decls
2810 check_cflags -Wno-pointer-sign
2811 check_cflags -Wcast-qual
2812 check_cflags -Wwrite-strings
2813 check_cflags -Wtype-limits
2814 check_cflags -Wundef
2815 check_cflags -Wmissing-prototypes
2816 enabled extra_warnings && check_cflags -Winline
2817
2818 # add some linker flags
2819 check_ldflags -Wl,--warn-common
2820 check_ldflags -Wl,--as-needed
2821 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'
2822 check_ldflags -Wl,-Bsymbolic
2823
2824 echo "X{};" > $TMPV
2825 if test_ldflags -Wl,--version-script,$TMPV; then
2826     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2827     check_cc <<EOF && enable symver_asm_label
2828 void ff_foo(void) __asm__ ("av_foo@VERSION");
2829 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2830 EOF
2831     check_cc <<EOF && enable symver_gnu_asm
2832 __asm__(".symver ff_foo,av_foo@VERSION");
2833 void ff_foo(void) {}
2834 EOF
2835 fi
2836
2837 if enabled small; then
2838     add_cflags $size_cflags
2839     optimizations="small"
2840 elif enabled optimizations; then
2841     add_cflags $speed_cflags
2842 else
2843     add_cflags $noopt_cflags
2844 fi
2845 check_cflags -fno-math-errno
2846 check_cflags -fno-signed-zeros
2847
2848 if enabled icc; then
2849     # Just warnings, no remarks
2850     check_cflags -w1
2851     # -wd: Disable following warnings
2852     # 144, 167, 556: -Wno-pointer-sign
2853     # 10006: ignoring unknown option -fno-signed-zeros
2854     # 10156: ignoring option '-W'; no argument required
2855     check_cflags -wd144,167,556,10006,10156
2856     # 11030: Warning unknown option --as-needed
2857     # 10156: ignoring option '-export'; no argument required
2858     check_ldflags -wd10156,11030
2859     # Allow to compile with optimizations
2860     check_ldflags -march=$cpu
2861     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2862     enable ebp_available
2863 elif enabled ccc; then
2864     # disable some annoying warnings
2865     add_cflags -msg_disable cvtu32to64
2866     add_cflags -msg_disable embedcomment
2867     add_cflags -msg_disable needconstext
2868     add_cflags -msg_disable nomainieee
2869     add_cflags -msg_disable ptrmismatch1
2870     add_cflags -msg_disable unreachcode
2871 elif enabled gcc; then
2872     check_cflags -fno-tree-vectorize
2873     check_cflags -Werror=implicit-function-declaration
2874     check_cflags -Werror=missing-prototypes
2875 elif enabled clang; then
2876     check_cflags -Qunused-arguments
2877 elif enabled armcc; then
2878     # 2523: use of inline assembler is deprecated
2879     add_cflags -Wrvct,--diag_suppress=2523
2880     add_cflags -Wrvct,--diag_suppress=1207
2881 elif enabled tms470; then
2882     add_cflags -pds=824 -pds=837
2883 fi
2884
2885 enabled_any $THREADS_LIST      && enable threads
2886
2887 check_deps $CONFIG_LIST       \
2888            $CONFIG_EXTRA      \
2889            $HAVE_LIST         \
2890            $DECODER_LIST      \
2891            $ENCODER_LIST      \
2892            $HWACCEL_LIST      \
2893            $PARSER_LIST       \
2894            $BSF_LIST          \
2895            $DEMUXER_LIST      \
2896            $MUXER_LIST        \
2897            $FILTER_LIST       \
2898            $INDEV_LIST        \
2899            $OUTDEV_LIST       \
2900            $PROTOCOL_LIST     \
2901            $ACODEC_TESTS      \
2902            $VCODEC_TESTS      \
2903            $LAVF_TESTS        \
2904            $LAVFI_TESTS       \
2905            $SEEK_TESTS        \
2906
2907 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2908
2909 echo "install prefix            $prefix"
2910 echo "source path               $source_path"
2911 echo "C compiler                $cc"
2912 echo "ARCH                      $arch ($cpu)"
2913 if test "$build_suffix" != ""; then
2914     echo "build suffix              $build_suffix"
2915 fi
2916 if test "$extra_version" != ""; then
2917     echo "version string suffix     $extra_version"
2918 fi
2919 echo "big-endian                ${bigendian-no}"
2920 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2921 if enabled x86; then
2922     echo "yasm                      ${yasm-no}"
2923     echo "MMX enabled               ${mmx-no}"
2924     echo "MMX2 enabled              ${mmx2-no}"
2925     echo "3DNow! enabled            ${amd3dnow-no}"
2926     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2927     echo "SSE enabled               ${sse-no}"
2928     echo "SSSE3 enabled             ${ssse3-no}"
2929     echo "CMOV enabled              ${cmov-no}"
2930     echo "CMOV is fast              ${fast_cmov-no}"
2931     echo "EBX available             ${ebx_available-no}"
2932     echo "EBP available             ${ebp_available-no}"
2933     echo "10 operands supported     ${ten_operands-no}"
2934 fi
2935 if enabled arm; then
2936     echo "ARMv5TE enabled           ${armv5te-no}"
2937     echo "ARMv6 enabled             ${armv6-no}"
2938     echo "ARMv6T2 enabled           ${armv6t2-no}"
2939     echo "ARM VFP enabled           ${armvfp-no}"
2940     echo "IWMMXT enabled            ${iwmmxt-no}"
2941     echo "NEON enabled              ${neon-no}"
2942 fi
2943 if enabled mips; then
2944     echo "MMI enabled               ${mmi-no}"
2945 fi
2946 if enabled ppc; then
2947     echo "AltiVec enabled           ${altivec-no}"
2948     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2949     echo "dcbzl available           ${dcbzl-no}"
2950 fi
2951 if enabled sparc; then
2952     echo "VIS enabled               ${vis-no}"
2953 fi
2954 echo "debug symbols             ${debug-no}"
2955 echo "strip symbols             ${stripping-no}"
2956 echo "optimizations             ${optimizations-no}"
2957 echo "static                    ${static-no}"
2958 echo "shared                    ${shared-no}"
2959 echo "postprocessing support    ${postproc-no}"
2960 echo "new filter support        ${avfilter-no}"
2961 echo "network support           ${network-no}"
2962 echo "threading support         ${thread_type-no}"
2963 echo "SDL support               ${sdl-no}"
2964 echo "Sun medialib support      ${mlib-no}"
2965 echo "AVISynth enabled          ${avisynth-no}"
2966 echo "libdc1394 support         ${libdc1394-no}"
2967 echo "libdirac enabled          ${libdirac-no}"
2968 echo "libfaac enabled           ${libfaac-no}"
2969 echo "libgsm enabled            ${libgsm-no}"
2970 echo "libmp3lame enabled        ${libmp3lame-no}"
2971 echo "libnut enabled            ${libnut-no}"
2972 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2973 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2974 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2975 echo "librtmp enabled           ${librtmp-no}"
2976 echo "libschroedinger enabled   ${libschroedinger-no}"
2977 echo "libspeex enabled          ${libspeex-no}"
2978 echo "libtheora enabled         ${libtheora-no}"
2979 echo "libvorbis enabled         ${libvorbis-no}"
2980 echo "libvpx enabled            ${libvpx-no}"
2981 echo "libx264 enabled           ${libx264-no}"
2982 echo "libxavs enabled           ${libxavs-no}"
2983 echo "libxvid enabled           ${libxvid-no}"
2984 echo "zlib enabled              ${zlib-no}"
2985 echo "bzlib enabled             ${bzlib-no}"
2986 echo
2987
2988 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2989     echo "Enabled ${type}s:"
2990     eval list=\$$(toupper $type)_LIST
2991     print_enabled '_*' $list | sort | pr -3 -t
2992     echo
2993 done
2994
2995 license="LGPL version 2.1 or later"
2996 if enabled nonfree; then
2997     license="nonfree and unredistributable"
2998 elif enabled gplv3; then
2999     license="GPL version 3 or later"
3000 elif enabled lgplv3; then
3001     license="LGPL version 3 or later"
3002 elif enabled gpl; then
3003     license="GPL version 2 or later"
3004 fi
3005
3006 echo "License: $license"
3007
3008 echo "Creating config.mak and config.h..."
3009
3010 # build tree in object directory if source path is different from current one
3011 if enabled source_path_used; then
3012     DIRS="
3013         doc
3014         libavcodec
3015         libavcodec/$arch
3016         libavcore
3017         libavdevice
3018         libavfilter
3019         libavformat
3020         libavutil
3021         libavutil/$arch
3022         libpostproc
3023         libswscale
3024         libswscale/$arch
3025         tests
3026         tools
3027     "
3028     FILES="
3029         Makefile
3030         common.mak
3031         subdir.mak
3032         doc/texi2pod.pl
3033         libavcodec/Makefile
3034         libavcodec/${arch}/Makefile
3035         libavcore/Makefile
3036         libavdevice/Makefile
3037         libavfilter/Makefile
3038         libavformat/Makefile
3039         libavutil/Makefile
3040         libpostproc/Makefile
3041         libswscale/Makefile
3042     "
3043     map 'mkdir -p $v' $DIRS;
3044     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3045 fi
3046
3047 enabled stripping || strip="echo skipping strip"
3048
3049 cat > config.mak <<EOF
3050 # Automatically generated by configure - do not modify!
3051 ifndef FFMPEG_CONFIG_MAK
3052 FFMPEG_CONFIG_MAK=1
3053 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3054 prefix=$prefix
3055 LIBDIR=\$(DESTDIR)$libdir
3056 SHLIBDIR=\$(DESTDIR)$shlibdir
3057 INCDIR=\$(DESTDIR)$incdir
3058 BINDIR=\$(DESTDIR)$bindir
3059 DATADIR=\$(DESTDIR)$datadir
3060 MANDIR=\$(DESTDIR)$mandir
3061 SRC_PATH="$source_path"
3062 SRC_PATH_BARE=$source_path
3063 BUILD_ROOT="$PWD"
3064 CC_IDENT=$cc_ident
3065 ARCH=$arch
3066 CC=$cc
3067 AS=$as
3068 LD=$ld
3069 DEPCC=$dep_cc
3070 YASM=$yasmexe
3071 YASMDEP=$yasmexe
3072 AR=$ar
3073 RANLIB=$ranlib
3074 CP=cp -p
3075 LN_S=$ln_s
3076 STRIP=$strip
3077 CPPFLAGS=$CPPFLAGS
3078 CFLAGS=$CFLAGS
3079 ASFLAGS=$ASFLAGS
3080 CC_O=$CC_O
3081 LDFLAGS=$LDFLAGS
3082 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3083 SHFLAGS=$SHFLAGS
3084 YASMFLAGS=$YASMFLAGS
3085 BUILDSUF=$build_suffix
3086 FULLNAME=$FULLNAME
3087 LIBPREF=$LIBPREF
3088 LIBSUF=$LIBSUF
3089 LIBNAME=$LIBNAME
3090 SLIBPREF=$SLIBPREF
3091 SLIBSUF=$SLIBSUF
3092 EXESUF=$EXESUF
3093 EXTRA_VERSION=$extra_version
3094 DEPFLAGS=$DEPFLAGS
3095 CCDEP=$CCDEP
3096 ASDEP=$ASDEP
3097 CC_DEPFLAGS=$CC_DEPFLAGS
3098 AS_DEPFLAGS=$AS_DEPFLAGS
3099 HOSTCC=$host_cc
3100 HOSTCFLAGS=$host_cflags
3101 HOSTEXESUF=$HOSTEXESUF
3102 HOSTLDFLAGS=$host_ldflags
3103 HOSTLIBS=$host_libs
3104 TARGET_EXEC=$target_exec
3105 TARGET_PATH=$target_path
3106 SDL_LIBS=$sdl_libs
3107 SDL_CFLAGS=$sdl_cflags
3108 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3109 EXTRALIBS=$extralibs
3110 INSTALL=install
3111 LIBTARGET=${LIBTARGET}
3112 SLIBNAME=${SLIBNAME}
3113 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3114 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3115 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3116 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3117 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3118 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3119 SAMPLES=$samples
3120 EOF
3121
3122 get_version(){
3123     name=$1
3124     file=$source_path/$2
3125     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3126     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3127     lcname=$(tolower $name)
3128     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3129     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3130 }
3131
3132 get_version LIBSWSCALE  libswscale/swscale.h
3133 get_version LIBPOSTPROC libpostproc/postprocess.h
3134 get_version LIBAVCODEC  libavcodec/avcodec.h
3135 get_version LIBAVCORE   libavcore/avcore.h
3136 get_version LIBAVDEVICE libavdevice/avdevice.h
3137 get_version LIBAVFORMAT libavformat/avformat.h
3138 get_version LIBAVUTIL   libavutil/avutil.h
3139 get_version LIBAVFILTER libavfilter/avfilter.h
3140
3141 cat > $TMPH <<EOF
3142 /* Automatically generated by configure - do not modify! */
3143 #ifndef FFMPEG_CONFIG_H
3144 #define FFMPEG_CONFIG_H
3145 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3146 #define FFMPEG_LICENSE "$(c_escape $license)"
3147 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3148 #define CC_TYPE "$cc_type"
3149 #define CC_VERSION $cc_version
3150 #define restrict $_restrict
3151 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3152 #define EXTERN_PREFIX "${extern_prefix}"
3153 #define EXTERN_ASM ${extern_prefix}
3154 EOF
3155
3156 test -n "$malloc_prefix" &&
3157     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3158
3159 if enabled small || disabled optimizations; then
3160     echo "#undef  av_always_inline"  >> $TMPH
3161     echo "#define av_always_inline"  >> $TMPH
3162 fi
3163
3164 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3165 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3166 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3167                                       $CONFIG_EXTRA      \
3168                                       $DECODER_LIST      \
3169                                       $ENCODER_LIST      \
3170                                       $HWACCEL_LIST      \
3171                                       $PARSER_LIST       \
3172                                       $BSF_LIST          \
3173                                       $DEMUXER_LIST      \
3174                                       $MUXER_LIST        \
3175                                       $FILTER_LIST       \
3176                                       $PROTOCOL_LIST     \
3177                                       $INDEV_LIST        \
3178                                       $OUTDEV_LIST       \
3179
3180 cat >>config.mak <<EOF
3181 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3182 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3183 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3184 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3185 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3186 EOF
3187
3188 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3189 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3190
3191 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3192 cp_if_changed $TMPH config.h
3193 touch .config
3194
3195 cat > $TMPH <<EOF
3196 /* Generated by ffconf */
3197 #ifndef AVUTIL_AVCONFIG_H
3198 #define AVUTIL_AVCONFIG_H
3199 EOF
3200
3201 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3202
3203 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3204
3205 cp_if_changed $TMPH libavutil/avconfig.h
3206
3207 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
3208
3209 test -n "$WARNINGS" && printf "\n$WARNINGS"
3210
3211 # build pkg-config files
3212
3213 pkgconfig_generate(){
3214 name=$1
3215 shortname=${name#lib}${build_suffix}
3216 comment=$2
3217 version=$3
3218 libs=$4
3219 requires=$5
3220 enabled ${name#lib} || return 0
3221 cat <<EOF > $name/$name.pc
3222 prefix=$prefix
3223 exec_prefix=\${prefix}
3224 libdir=$libdir
3225 includedir=$incdir
3226
3227 Name: $name
3228 Description: $comment
3229 Version: $version
3230 Requires: $(enabled shared || echo $requires)
3231 Requires.private: $(enabled shared && echo $requires)
3232 Conflicts:
3233 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3234 Libs.private: $(enabled shared && echo $libs)
3235 Cflags: -I\${includedir}
3236 EOF
3237 cat <<EOF > $name/$name-uninstalled.pc
3238 prefix=
3239 exec_prefix=
3240 libdir=\${pcfiledir}
3241 includedir=${source_path}
3242
3243 Name: $name
3244 Description: $comment
3245 Version: $version
3246 Requires: $requires
3247 Conflicts:
3248 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3249 Cflags: -I\${includedir}
3250 EOF
3251 }
3252
3253 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3254 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3255 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3256 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3257 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3258 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3259 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3260 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"