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 mmsh_protocol_select="http_protocol"
1378 mmst_protocol_deps="network"
1379 rtmp_protocol_select="tcp_protocol"
1380 rtp_protocol_select="udp_protocol"
1381 tcp_protocol_deps="network"
1382 udp_protocol_deps="network"
1383
1384 # libraries
1385 avdevice_deps="avcodec avformat"
1386 avformat_deps="avcodec"
1387
1388 # programs
1389 ffmpeg_deps="avcodec avformat swscale"
1390 ffmpeg_select="buffer_filter"
1391 ffplay_deps="avcodec avformat swscale sdl"
1392 ffplay_select="rdft"
1393 ffprobe_deps="avcodec avformat"
1394 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1395 ffserver_extralibs='$ldl'
1396
1397 doc_deps="texi2html"
1398
1399 # tests
1400
1401 test_deps(){
1402     suf1=$1
1403     suf2=$2
1404     shift 2
1405     for v; do
1406         dep=${v%=*}
1407         tests=${v#*=}
1408         for name in ${tests}; do
1409             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1410         done
1411     done
1412 }
1413
1414 set_ne_test_deps(){
1415     eval ${1}_be_test_deps="bigendian"
1416     eval ${1}_le_test_deps="!bigendian"
1417 }
1418
1419 test_deps _encoder _decoder                                             \
1420     ac3                                                                 \
1421     adpcm_g726=g726                                                     \
1422     adpcm_ima_qt                                                        \
1423     adpcm_ima_wav                                                       \
1424     adpcm_ms                                                            \
1425     adpcm_swf                                                           \
1426     adpcm_yamaha=adpcm_yam                                              \
1427     alac                                                                \
1428     asv1                                                                \
1429     asv2                                                                \
1430     bmp                                                                 \
1431     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1432     dvvideo="dv dv50"                                                   \
1433     ffv1                                                                \
1434     flac                                                                \
1435     flashsv                                                             \
1436     flv                                                                 \
1437     gif                                                                 \
1438     h261                                                                \
1439     h263="h263 h263p"                                                   \
1440     huffyuv                                                             \
1441     jpegls                                                              \
1442     mjpeg="jpg mjpeg ljpeg"                                             \
1443     mp2                                                                 \
1444     mpeg1video="mpeg mpeg1b"                                            \
1445     mpeg2video="mpeg2 mpeg2thread"                                      \
1446     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1447     msmpeg4v3=msmpeg4                                                   \
1448     msmpeg4v2                                                           \
1449     pbm=pbmpipe                                                         \
1450     pcx                                                                 \
1451     pgm="pgm pgmpipe"                                                   \
1452     ppm="ppm ppmpipe"                                                   \
1453     rawvideo="rgb yuv"                                                  \
1454     roq                                                                 \
1455     rv10                                                                \
1456     rv20                                                                \
1457     sgi                                                                 \
1458     snow="snow snowll"                                                  \
1459     svq1                                                                \
1460     targa=tga                                                           \
1461     tiff                                                                \
1462     wmav1                                                               \
1463     wmav2                                                               \
1464     wmv1                                                                \
1465     wmv2                                                                \
1466
1467 test_deps _muxer _demuxer                                               \
1468     aiff                                                                \
1469     pcm_alaw=alaw                                                       \
1470     asf                                                                 \
1471     au                                                                  \
1472     avi                                                                 \
1473     dv=dv_fmt                                                           \
1474     ffm                                                                 \
1475     flv=flv_fmt                                                         \
1476     gxf                                                                 \
1477     matroska=mkv                                                        \
1478     mmf                                                                 \
1479     mov                                                                 \
1480     pcm_mulaw=mulaw                                                     \
1481     mxf                                                                 \
1482     nut                                                                 \
1483     ogg                                                                 \
1484     rawvideo=pixfmt                                                     \
1485     rm                                                                  \
1486     swf                                                                 \
1487     mpegts=ts                                                           \
1488     voc                                                                 \
1489     wav                                                                 \
1490     yuv4mpegpipe=yuv4mpeg                                               \
1491
1492 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1493
1494 set_ne_test_deps pixdesc
1495 set_ne_test_deps pixfmts_crop
1496 set_ne_test_deps pixfmts_hflip
1497 set_ne_test_deps pixfmts_null
1498 set_ne_test_deps pixfmts_pad
1499 set_ne_test_deps pixfmts_scale
1500 set_ne_test_deps pixfmts_vflip
1501
1502 # default parameters
1503
1504 logfile="config.log"
1505
1506 # installation paths
1507 prefix_default="/usr/local"
1508 bindir_default='${prefix}/bin'
1509 datadir_default='${prefix}/share/ffmpeg'
1510 incdir_default='${prefix}/include'
1511 libdir_default='${prefix}/lib'
1512 mandir_default='${prefix}/share/man'
1513 shlibdir_default="$libdir_default"
1514
1515 # toolchain
1516 ar_default="ar"
1517 cc_default="gcc"
1518 cc_version=\"unknown\"
1519 host_cc_default="gcc"
1520 ln_s="ln -sf"
1521 nm_default="nm"
1522 objformat="elf"
1523 ranlib="ranlib"
1524 strip_default="strip"
1525 yasmexe="yasm"
1526 nogas=":"
1527
1528 nm_opts='-g'
1529
1530 # machine
1531 arch_default=$(uname -m)
1532 cpu="generic"
1533
1534 # OS
1535 target_os_default=$(tolower $(uname -s))
1536 host_os=$target_os_default
1537
1538 # configurable options
1539 enable avcodec
1540 enable avcore
1541 enable avdevice
1542 enable avfilter
1543 enable avformat
1544 enable avutil
1545 enable asm
1546 enable debug
1547 enable doc
1548 enable fastdiv
1549 enable ffmpeg
1550 enable ffplay
1551 enable ffprobe
1552 enable ffserver
1553 enable mpegaudio_hp
1554 enable network
1555 enable optimizations
1556 enable protocols
1557 enable static
1558 enable stripping
1559 enable swscale
1560 enable swscale_alpha
1561
1562 # build settings
1563 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1564 FFSERVERLDFLAGS=-Wl,-E
1565 LIBPREF="lib"
1566 LIBSUF=".a"
1567 FULLNAME='$(NAME)$(BUILDSUF)'
1568 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1569 SLIBPREF="lib"
1570 SLIBSUF=".so"
1571 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1572 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1573 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1574 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1575
1576 CC_O='-o $@'
1577
1578 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1579 host_libs='-lm'
1580
1581 target_path='$(CURDIR)'
1582
1583 # since the object filename is not given with the -MM flag, the compiler
1584 # is only able to print the basename, and we must add the path ourselves
1585 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1586 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1587
1588 # find source path
1589 source_path="$(dirname "$0")"
1590 enable source_path_used
1591 if test -f configure; then
1592     source_path="$(pwd)"
1593     disable source_path_used
1594 else
1595     source_path="$(cd "$source_path"; pwd)"
1596     echo "$source_path" | grep -q '[[:blank:]]' &&
1597         die "Out of tree builds are impossible with whitespace in source path."
1598     test -e "$source_path/config.h" &&
1599         die "Out of tree builds are impossible with config.h in source dir."
1600 fi
1601
1602 for v in "$@"; do
1603     r=${v#*=}
1604     l=${v%"$r"}
1605     r=$(sh_quote "$r")
1606     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1607 done
1608
1609 find_things(){
1610     thing=$1
1611     pattern=$2
1612     file=$source_path/$3
1613     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1614 }
1615
1616 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1617 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1618 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1619 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1620 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1621 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1622 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1623 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1624 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1625 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1626 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1627
1628 find_tests(){
1629     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1630 }
1631
1632 ACODEC_TESTS=$(find_tests acodec)
1633 VCODEC_TESTS=$(find_tests vsynth1)
1634 LAVF_TESTS=$(find_tests lavf)
1635 LAVFI_TESTS=$(find_tests lavfi)
1636 SEEK_TESTS=$(find_tests seek seek_)
1637
1638 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1639
1640 for n in $COMPONENT_LIST; do
1641     v=$(toupper ${n%s})_LIST
1642     eval enable \$$v
1643     eval ${n}_if_any="\$$v"
1644 done
1645
1646 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1647
1648 die_unknown(){
1649     echo "Unknown option \"$1\"."
1650     echo "See $0 --help for available options."
1651     exit 1
1652 }
1653
1654 show_list() {
1655     suffix=_$1
1656     shift
1657     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1658     exit 0
1659 }
1660
1661 for opt do
1662     optval="${opt#*=}"
1663     case "$opt" in
1664     --extra-ldflags=*) add_ldflags $optval
1665     ;;
1666     --extra-libs=*) add_extralibs $optval
1667     ;;
1668     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1669     ;;
1670     --enable-debug=*) debuglevel="$optval"
1671     ;;
1672     --disable-everything)
1673     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1674     ;;
1675     --enable-*=*|--disable-*=*)
1676     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1677     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1678     eval list=\$$(toupper $thing)_LIST
1679     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1680     $action $(filter "$name" $list)
1681     ;;
1682     --enable-?*|--disable-?*)
1683     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1684     if is_in $option $COMPONENT_LIST; then
1685         test $action = disable && action=unset
1686         eval $action \$$(toupper ${option%s})_LIST
1687     elif is_in $option $CMDLINE_SELECT; then
1688         $action $option
1689     else
1690         die_unknown $opt
1691     fi
1692     ;;
1693     --list-*)
1694         NAME="${opt#--list-}"
1695         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1696         NAME=${NAME%s}
1697         eval show_list $NAME \$$(toupper $NAME)_LIST
1698     ;;
1699     --help|-h) show_help
1700     ;;
1701     *)
1702     optname="${opt%%=*}"
1703     optname="${optname#--}"
1704     optname=$(echo "$optname" | sed 's/-/_/g')
1705     if is_in $optname $CMDLINE_SET; then
1706         eval $optname='$optval'
1707     elif is_in $optname $CMDLINE_APPEND; then
1708         append $optname "$optval"
1709     else
1710          die_unknown $opt
1711     fi
1712     ;;
1713     esac
1714 done
1715
1716 disabled logging && logfile=/dev/null
1717
1718 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1719 set >> $logfile
1720
1721 test -n "$cross_prefix" && enable cross_compile
1722
1723 if enabled cross_compile; then
1724     test -n "$arch" && test -n "$target_os" ||
1725         die "Must specify target arch and OS when cross-compiling"
1726 fi
1727
1728 set_default arch target_os
1729
1730 ar_default="${cross_prefix}${ar_default}"
1731 cc_default="${cross_prefix}${cc_default}"
1732 nm_default="${cross_prefix}${nm_default}"
1733 ranlib="${cross_prefix}${ranlib}"
1734 strip_default="${cross_prefix}${strip_default}"
1735
1736 sysinclude_default="${sysroot}/usr/include"
1737
1738 set_default cc nm strip sysinclude
1739 enabled cross_compile || host_cc_default=$cc
1740 set_default host_cc
1741
1742 exesuf() {
1743     case $1 in
1744         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1745     esac
1746 }
1747
1748 EXESUF=$(exesuf $target_os)
1749 HOSTEXESUF=$(exesuf $host_os)
1750
1751 # set temporary file name
1752 : ${TMPDIR:=$TEMPDIR}
1753 : ${TMPDIR:=$TMP}
1754 : ${TMPDIR:=/tmp}
1755
1756 if ! check_cmd type mktemp; then
1757     # simple replacement for missing mktemp
1758     # NOT SAFE FOR GENERAL USE
1759     mktemp(){
1760         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1761     }
1762 fi
1763
1764 tmpfile(){
1765     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1766         (set -C; exec > $tmp) 2>/dev/null ||
1767         die "Unable to create temporary file in $TMPDIR."
1768     append TMPFILES $tmp
1769     eval $1=$tmp
1770 }
1771
1772 trap 'rm -f -- $TMPFILES' EXIT
1773 trap exit HUP INT TERM
1774
1775 tmpfile TMPC  .c
1776 tmpfile TMPE  $EXESUF
1777 tmpfile TMPH  .h
1778 tmpfile TMPO  .o
1779 tmpfile TMPS  .S
1780 tmpfile TMPV  .ver
1781 tmpfile TMPSH .sh
1782
1783 unset -f mktemp
1784
1785 # make sure we can execute files in $TMPDIR
1786 cat > $TMPSH 2>> $logfile <<EOF
1787 #! /bin/sh
1788 EOF
1789 chmod +x $TMPSH >> $logfile 2>&1
1790 if ! $TMPSH >> $logfile 2>&1; then
1791     cat <<EOF
1792 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1793 variable to another directory and make sure that it is not mounted noexec.
1794 EOF
1795     die "Sanity test failed."
1796 fi
1797
1798 filter_cflags=echo
1799 filter_cppflags=echo
1800 filter_asflags=echo
1801
1802 if   $cc -v 2>&1 | grep -qi ^gcc; then
1803     cc_type=gcc
1804     cc_version=__VERSION__
1805     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1806     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1807     if ! $cc -dumpversion | grep -q '^2\.'; then
1808         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1809         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1810     fi
1811     speed_cflags='-O3'
1812     size_cflags='-Os'
1813 elif $cc --version 2>/dev/null | grep -q Intel; then
1814     cc_type=icc
1815     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1816     cc_ident=$($cc --version | head -n1)
1817     CC_DEPFLAGS='-MMD'
1818     AS_DEPFLAGS='-MMD'
1819     speed_cflags='-O3'
1820     size_cflags='-Os'
1821     noopt_cflags='-O1'
1822 elif $cc -v 2>&1 | grep -q xlc; then
1823     cc_type=xlc
1824     cc_version="AV_STRINGIFY(__IBMC__)"
1825     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1826     speed_cflags='-O5'
1827     size_cflags='-O5 -qcompact'
1828 elif $cc -V 2>/dev/null | grep -q Compaq; then
1829     cc_type=ccc
1830     cc_version="AV_STRINGIFY(__DECC_VER)"
1831     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1832     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1833     debuglevel=3
1834     add_ldflags -Wl,-z,now # calls to libots crash without this
1835     speed_cflags='-fast'
1836     size_cflags='-O1'
1837 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1838     test -d "$sysroot" || die "No valid sysroot specified."
1839     cc_type=armcc
1840     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1841     cc_ident=$($cc --vsn | head -n1)
1842     armcc_conf="$PWD/armcc.conf"
1843     $cc --arm_linux_configure                 \
1844         --arm_linux_config_file="$armcc_conf" \
1845         --configure_sysroot="$sysroot"        \
1846         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1847         die "Error creating armcc configuration file."
1848     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1849     as_default="${cross_prefix}gcc"
1850     CC_DEPFLAGS='-MMD'
1851     AS_DEPFLAGS='-MMD'
1852     speed_cflags='-O3'
1853     size_cflags='-Os'
1854 elif $cc -version 2>/dev/null | grep -q TMS470; then
1855     cc_type=tms470
1856     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1857     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1858     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1859     CC_O='-fr=$(@D)'
1860     as_default="${cross_prefix}gcc"
1861     ld_default="${cross_prefix}gcc"
1862     TMPO=$(basename $TMPC .c).o
1863     append TMPFILES $TMPO
1864     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1865     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1866     AS_DEPFLAGS='-MMD'
1867     speed_cflags='-O3 -mf=5'
1868     size_cflags='-O3 -mf=2'
1869     filter_cflags=tms470_flags
1870     tms470_flags(){
1871         for flag; do
1872             case $flag in
1873                 -march=*|-mcpu=*)
1874                     case "${flag#*=}" in
1875                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1876                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1877                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1878                         armv6*|arm11*)          echo -mv=6   ;;
1879                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1880                                                 echo -mv=5e  ;;
1881                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1882                     esac
1883                     ;;
1884                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1885                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1886                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1887                 -msoft-float)   echo --float_support=vfplib       ;;
1888                 -O[0-3]|-mf=*)  echo $flag                        ;;
1889                 -g)             echo -g -mn                       ;;
1890                 -pds=*)         echo $flag                        ;;
1891             esac
1892         done
1893     }
1894 elif $cc -v 2>&1 | grep -q clang; then
1895     cc_type=clang
1896     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1897         cc_version=__clang_version__ || cc_version=__VERSION__
1898     cc_ident=$($cc --version | head -n1)
1899     CC_DEPFLAGS='-MMD'
1900     AS_DEPFLAGS='-MMD'
1901     speed_cflags='-O3'
1902     size_cflags='-Os'
1903 elif $cc -V 2>&1 | grep -q Sun; then
1904     cc_type=suncc
1905     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1906     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1907     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1908     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1909     speed_cflags='-O5'
1910     size_cflags='-O5 -xspace'
1911     filter_cflags=suncc_flags
1912     suncc_flags(){
1913         for flag; do
1914             case $flag in
1915                 -march=*|-mcpu=*)
1916                     case "${flag#*=}" in
1917                         native)                   echo -xtarget=native       ;;
1918                         v9|niagara)               echo -xarch=sparc          ;;
1919                         ultrasparc)               echo -xarch=sparcvis       ;;
1920                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1921                         i586|pentium)             echo -xchip=pentium        ;;
1922                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1923                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1924                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1925                         pentium4*)          echo -xtarget=pentium4           ;;
1926                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1927                         *-sse3)             echo -xarch=sse3                 ;;
1928                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1929                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1930                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1931                         k8|opteron|athlon64|athlon-fx)
1932                                                   echo -xarch=sse2a          ;;
1933                         athlon*)                  echo -xarch=pentium_proa   ;;
1934                     esac
1935                     ;;
1936                 -std=c99)             echo -xc99              ;;
1937                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1938                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1939                 -W*,*)                echo $flag              ;;
1940                 -f*-*|-W*)                                    ;;
1941                 *)                    echo $flag              ;;
1942             esac
1943         done
1944     }
1945 elif $cc -v 2>&1 | grep -q PathScale; then
1946     cc_type=pathscale
1947     cc_version=__PATHSCALE__
1948     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1949     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951     speed_cflags='-O2'
1952     size_cflags='-Os'
1953 fi
1954
1955 test -n "$cc_type" && enable $cc_type ||
1956     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1957
1958 : ${as_default:=$cc}
1959 : ${dep_cc_default:=$cc}
1960 : ${ld_default:=$cc}
1961 set_default ar as dep_cc ld
1962
1963 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1964 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1965
1966 add_cflags $extra_cflags
1967 add_asflags $extra_cflags
1968
1969 if test -n "$sysroot"; then
1970     case "$cc_type" in
1971         gcc)
1972             add_cppflags --sysroot="$sysroot"
1973             add_ldflags --sysroot="$sysroot"
1974         ;;
1975         tms470)
1976             add_cppflags -I"$sysinclude"
1977             add_ldflags  --sysroot="$sysroot"
1978         ;;
1979         clang)
1980             add_cppflags -isysroot "$sysroot"
1981             add_ldflags -isysroot "$sysroot"
1982         ;;
1983     esac
1984 fi
1985
1986 if test "$cpu" = host; then
1987     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1988
1989     case "$cc_type" in
1990         gcc)
1991             check_native(){
1992                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1993                 sed -n "/$1=/{
1994                             s/.*$1=\\([^ ]*\\).*/\\1/
1995                             p
1996                             q
1997                         }" $TMPE
1998             }
1999             cpu=$(check_native -march || check_native -mcpu)
2000         ;;
2001     esac
2002
2003     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2004 fi
2005
2006 # Deal with common $arch aliases
2007 case "$arch" in
2008     arm*)
2009         arch="arm"
2010     ;;
2011     mips|mipsel|IP*)
2012         arch="mips"
2013     ;;
2014     mips64*)
2015         arch="mips"
2016         subarch="mips64"
2017     ;;
2018     parisc|hppa)
2019         arch="parisc"
2020     ;;
2021     parisc64|hppa64)
2022         arch="parisc"
2023         subarch="parisc64"
2024     ;;
2025     "Power Macintosh"|ppc|powerpc)
2026         arch="ppc"
2027     ;;
2028     ppc64|powerpc64)
2029         arch="ppc"
2030         subarch="ppc64"
2031     ;;
2032     s390|s390x)
2033         arch="s390"
2034     ;;
2035     sh4|sh)
2036         arch="sh4"
2037     ;;
2038     sun4u|sparc64)
2039         arch="sparc"
2040         subarch="sparc64"
2041     ;;
2042     i[3-6]86|i86pc|BePC|x86_64|amd64)
2043         arch="x86"
2044     ;;
2045 esac
2046
2047 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2048 enable $arch
2049
2050 # Add processor-specific flags
2051 if test "$cpu" = generic; then
2052     : do nothing
2053 elif enabled ppc; then
2054
2055     case $(tolower $cpu) in
2056         601|ppc601|powerpc601)
2057             cpuflags="-mcpu=601"
2058             disable altivec
2059         ;;
2060         603*|ppc603*|powerpc603*)
2061             cpuflags="-mcpu=603"
2062             disable altivec
2063         ;;
2064         604*|ppc604*|powerpc604*)
2065             cpuflags="-mcpu=604"
2066             disable altivec
2067         ;;
2068         g3|75*|ppc75*|powerpc75*)
2069             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2070             disable altivec
2071         ;;
2072         g4|745*|ppc745*|powerpc745*)
2073             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2074         ;;
2075         74*|ppc74*|powerpc74*)
2076             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2077         ;;
2078         g5|970|ppc970|powerpc970|power4*)
2079             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2080         ;;
2081         cell)
2082             cpuflags="-mcpu=cell"
2083             enable ldbrx
2084         ;;
2085         e500v2)
2086             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2087             disable altivec
2088         ;;
2089         e500)
2090             cpuflags="-mcpu=8540 -mhard-float"
2091             disable altivec
2092         ;;
2093     esac
2094
2095 elif enabled x86; then
2096
2097     case $cpu in
2098         i[345]86|pentium)
2099             cpuflags="-march=$cpu"
2100             disable mmx
2101         ;;
2102         # targets that do NOT support conditional mov (cmov)
2103         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2104             cpuflags="-march=$cpu"
2105             disable cmov
2106         ;;
2107         # targets that do support conditional mov (cmov)
2108         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2109             cpuflags="-march=$cpu"
2110             enable cmov
2111             enable fast_cmov
2112         ;;
2113         # targets that do support conditional mov but on which it's slow
2114         pentium4|pentium4m|prescott|nocona)
2115             cpuflags="-march=$cpu"
2116             enable cmov
2117             disable fast_cmov
2118         ;;
2119     esac
2120
2121 elif enabled sparc; then
2122
2123     case $cpu in
2124         niagara)
2125             cpuflags="-mcpu=$cpu"
2126             disable vis
2127         ;;
2128         sparc64)
2129             cpuflags="-mcpu=v9"
2130         ;;
2131     esac
2132
2133 elif enabled arm; then
2134
2135     case $cpu in
2136         armv*)
2137             cpuflags="-march=$cpu"
2138             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2139         ;;
2140         *)
2141             cpuflags="-mcpu=$cpu"
2142             case $cpu in
2143                 cortex-a*)                               subarch=armv7a  ;;
2144                 cortex-r*)                               subarch=armv7r  ;;
2145                 cortex-m*)                               subarch=armv7m  ;;
2146                 arm11*)                                  subarch=armv6   ;;
2147                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2148                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2149             esac
2150         ;;
2151     esac
2152
2153 elif enabled alpha; then
2154
2155     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2156
2157 elif enabled bfin; then
2158
2159     cpuflags="-mcpu=$cpu"
2160
2161 elif enabled mips; then
2162
2163     cpuflags="-march=$cpu"
2164
2165 elif enabled avr32; then
2166
2167     case $cpu in
2168         ap7[02]0[0-2])
2169             subarch="avr32_ap"
2170             cpuflags="-mpart=$cpu"
2171         ;;
2172         ap)
2173             subarch="avr32_ap"
2174             cpuflags="-march=$cpu"
2175         ;;
2176         uc3[ab]*)
2177             subarch="avr32_uc"
2178             cpuflags="-mcpu=$cpu"
2179         ;;
2180         uc)
2181             subarch="avr32_uc"
2182             cpuflags="-march=$cpu"
2183         ;;
2184     esac
2185
2186 fi
2187
2188 add_cflags $cpuflags
2189 add_asflags $cpuflags
2190
2191 # compiler sanity check
2192 check_exec <<EOF
2193 int main(void){ return 0; }
2194 EOF
2195 if test "$?" != 0; then
2196     echo "$cc is unable to create an executable file."
2197     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2198         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2199         echo "Only do this if you know what cross compiling means."
2200     fi
2201     die "C compiler test failed."
2202 fi
2203
2204 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2205 check_cflags -std=c99
2206 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2207 #include <stdlib.h>
2208 EOF
2209 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2210 #include <stdlib.h>
2211 EOF
2212
2213 check_host_cflags -std=c99
2214
2215 case "$arch" in
2216     alpha|ia64|mips|parisc|sparc)
2217         spic=$shared
2218     ;;
2219     x86)
2220         subarch="x86_32"
2221         check_cc <<EOF && subarch="x86_64"
2222         int test[(int)sizeof(char*) - 7];
2223 EOF
2224         if test "$subarch" = "x86_64"; then
2225             spic=$shared
2226         fi
2227     ;;
2228 esac
2229
2230 enable $subarch
2231 enabled spic && enable pic
2232
2233 # OS specific
2234 case $target_os in
2235     haiku)
2236         prefix_default="/boot/common"
2237         network_extralibs="-lnetwork"
2238         ;;
2239     sunos)
2240         FFSERVERLDFLAGS=""
2241         SHFLAGS='-shared -Wl,-h,$$(@F)'
2242         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2243         network_extralibs="-lsocket -lnsl"
2244         add_cppflags -D__EXTENSIONS__
2245         nm_opts='-P -g'
2246         ;;
2247     netbsd)
2248         oss_indev_extralibs="-lossaudio"
2249         oss_outdev_extralibs="-lossaudio"
2250         add_cppflags -D_XOPEN_SOURCE=600
2251         ;;
2252     openbsd)
2253         enable malloc_aligned
2254         # On OpenBSD 4.5. the compiler does not use PIC unless
2255         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2256         # however the generated executable will not do anything
2257         # (simply quits with exit-code 1, no crash, no output).
2258         # Thus explicitly enable PIC here.
2259         enable pic
2260         SHFLAGS='-shared'
2261         oss_indev_extralibs="-lossaudio"
2262         oss_outdev_extralibs="-lossaudio"
2263         ;;
2264     freebsd|dragonfly)
2265         enable malloc_aligned
2266         ;;
2267     bsd/os)
2268         add_extralibs -lpoll -lgnugetopt
2269         strip="strip -d"
2270         ;;
2271     darwin)
2272         enable malloc_aligned
2273         gas="gas-preprocessor.pl $cc"
2274         enabled ppc && add_asflags -force_cpusubtype_ALL
2275         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2276         strip="${strip} -x"
2277         add_ldflags -Wl,-dynamic,-search_paths_first
2278         SLIBSUF=".dylib"
2279         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2280         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2281         FFSERVERLDFLAGS=-Wl,-bind_at_load
2282         objformat="macho"
2283         enabled x86_64 && objformat="macho64"
2284         enabled_any pic shared ||
2285             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2286         ;;
2287     mingw32*)
2288         if test $target_os = "mingw32ce"; then
2289             disable network
2290         else
2291             target_os=mingw32
2292         fi
2293         LIBTARGET=i386
2294         if enabled x86_64; then
2295             enable malloc_aligned
2296             LIBTARGET=x64
2297         elif enabled arm; then
2298             LIBTARGET=arm
2299         fi
2300         shlibdir_default="$bindir_default"
2301         disable ffserver
2302         SLIBPREF=""
2303         SLIBSUF=".dll"
2304         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2305         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2306         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2307         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2308             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2309             install -d "$(LIBDIR)"; \
2310             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2311         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2312         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'
2313         objformat="win32"
2314         enable dos_paths
2315         check_cflags -fno-common
2316         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2317                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2318                 die "ERROR: MinGW runtime version must be >= 3.15."
2319         ;;
2320     cygwin*)
2321         target_os=cygwin
2322         shlibdir_default="$bindir_default"
2323         SLIBPREF="cyg"
2324         SLIBSUF=".dll"
2325         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2326         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2327         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2328         objformat="win32"
2329         enable dos_paths
2330         check_cflags -fno-common
2331         ;;
2332     *-dos|freedos|opendos)
2333         disable ffplay ffserver
2334         disable $INDEV_LIST $OUTDEV_LIST
2335         network_extralibs="-lsocket"
2336         objformat="coff"
2337         enable dos_paths
2338         ;;
2339     linux)
2340         enable dv1394
2341         ;;
2342     irix*)
2343         target_os=irix
2344         ranlib="echo ignoring ranlib"
2345         ;;
2346     os/2*)
2347         strip="lxlite"
2348         ln_s="cp -f"
2349         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2350         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2351         FFSERVERLDFLAGS=""
2352         LIBSUF="_s.a"
2353         SLIBPREF=""
2354         SLIBSUF=".dll"
2355         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2356         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2357         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2358           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2359           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2360           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2361           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2362           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2363         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2364           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2365         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2366         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2367         enable dos_paths
2368         ;;
2369     gnu/kfreebsd)
2370         ;;
2371     gnu)
2372         ;;
2373     none)
2374         ;;
2375     *)
2376         die "Unknown OS '$target_os'."
2377         ;;
2378 esac
2379
2380 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2381
2382 set_default $PATHS_LIST
2383
2384 # we need to build at least one lib type
2385 if ! enabled_any static shared; then
2386     cat <<EOF
2387 At least one library type must be built.
2388 Specify --enable-static to build the static libraries or --enable-shared to
2389 build the shared libraries as well. To only build the shared libraries specify
2390 --disable-static in addition to --enable-shared.
2391 EOF
2392     exit 1;
2393 fi
2394
2395 disabled static && LIBNAME=""
2396
2397 die_license_disabled() {
2398     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2399 }
2400
2401 die_license_disabled gpl libx264
2402 die_license_disabled gpl libxavs
2403 die_license_disabled gpl libxvid
2404 die_license_disabled gpl postproc
2405 die_license_disabled gpl x11grab
2406
2407 die_license_disabled nonfree libfaac
2408
2409 die_license_disabled version3 libopencore_amrnb
2410 die_license_disabled version3 libopencore_amrwb
2411
2412 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2413
2414 check_deps $ARCH_EXT_LIST
2415
2416 disabled optimizations || check_cflags -fomit-frame-pointer
2417
2418 enable_pic() {
2419     enable pic
2420     add_cppflags -DPIC
2421     add_cflags   -fPIC
2422     add_asflags  -fPIC
2423 }
2424
2425 enabled pic && enable_pic
2426
2427 check_cc <<EOF || die "Symbol mangling check failed."
2428 int ff_extern;
2429 EOF
2430 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2431 extern_prefix=${sym%%ff_extern*}
2432
2433 check_cc <<EOF && enable inline_asm
2434 void foo(void) { __asm__ volatile ("" ::); }
2435 EOF
2436
2437 _restrict=
2438 for restrict_keyword in restrict __restrict__ __restrict; do
2439     check_cc <<EOF && _restrict=$restrict_keyword && break
2440 void foo(char * $restrict_keyword p);
2441 EOF
2442 done
2443
2444 check_cc <<EOF && enable attribute_packed
2445 struct { int x; } __attribute__((packed)) x;
2446 EOF
2447
2448 check_cc <<EOF && enable attribute_may_alias
2449 union { int x; } __attribute__((may_alias)) x;
2450 EOF
2451
2452 check_cc <<EOF || die "endian test failed"
2453 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2454 EOF
2455 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2456
2457 if enabled alpha; then
2458
2459     check_cflags -mieee
2460
2461 elif enabled arm; then
2462
2463     check_cflags -marm
2464     nogas=die
2465
2466     check_ld <<EOF && enable vfp_args
2467 __asm__ (".eabi_attribute 28, 1");
2468 int main(void) { return 0; }
2469 EOF
2470
2471     # We have to check if pld is a nop and disable it.
2472     check_asm pld '"pld [r0]"'
2473
2474     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2475     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2476     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2477     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2478     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2479     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2480
2481     enabled_all armv6t2 shared !pic && enable_pic
2482
2483 elif enabled mips; then
2484
2485     check_asm loongson '"dmult.g $1, $2, $3"'
2486     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2487
2488 elif enabled ppc; then
2489
2490     enable local_aligned_8 local_aligned_16
2491
2492     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2493     check_asm ibm_asm   '"add 0, 0, 0"'
2494     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2495     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2496
2497     # AltiVec flags: The FSF version of GCC differs from the Apple version
2498     if enabled altivec; then
2499         nogas=warn
2500         check_cflags -maltivec -mabi=altivec &&
2501         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2502         check_cflags -faltivec
2503
2504         # check if our compiler supports Motorola AltiVec C API
2505         check_cc <<EOF || disable altivec
2506 $inc_altivec_h
2507 int main(void) {
2508     vector signed int v1, v2, v3;
2509     v1 = vec_add(v2,v3);
2510     return 0;
2511 }
2512 EOF
2513
2514         # check if our compiler supports braces for vector declarations
2515         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2516 $inc_altivec_h
2517 int main (void) { (vector int) {1}; return 0; }
2518 EOF
2519     fi
2520
2521 elif enabled sparc; then
2522
2523     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2524         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2525
2526 elif enabled x86; then
2527
2528     enable local_aligned_8 local_aligned_16
2529
2530     # check whether EBP is available on x86
2531     # As 'i' is stored on the stack, this program will crash
2532     # if the base pointer is used to access it because the
2533     # base pointer is cleared in the inline assembly code.
2534     check_exec_crash <<EOF && enable ebp_available
2535     volatile int i=0;
2536     __asm__ volatile (
2537         "xorl %%ebp, %%ebp"
2538     ::: "%ebp");
2539     return i;
2540 EOF
2541
2542     # check whether EBX is available on x86
2543     check_asm ebx_available '""::"b"(0)' &&
2544         check_asm ebx_available '"":::"%ebx"'
2545
2546     # check whether more than 10 operands are supported
2547     check_cc <<EOF && enable ten_operands
2548 int main(void) {
2549     int x=0;
2550     __asm__ volatile(
2551         ""
2552         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2553     );
2554     return 0;
2555 }
2556 EOF
2557
2558     # check whether binutils is new enough to compile SSSE3/MMX2
2559     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2560     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2561
2562     check_asm bswap '"bswap %%eax" ::: "%eax"'
2563
2564     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2565     enabled     x86_64        && append YASMFLAGS "-m amd64"
2566     enabled     pic           && append YASMFLAGS "-DPIC"
2567     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2568     case "$objformat" in
2569         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2570     esac
2571     if ! disabled yasm; then
2572         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2573             warn "yasm not found, performance will suffer"
2574     fi
2575
2576     case "$cpu" in
2577         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2578             disable fast_clz
2579         ;;
2580     esac
2581
2582 fi
2583
2584 if enabled asm; then
2585     as=${gas:=$as}
2586     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2587         $nogas "GNU assembler not found, install gas-preprocessor"
2588 fi
2589
2590 if check_func dlopen; then
2591     ldl=
2592 elif check_func dlopen -ldl; then
2593     ldl=-ldl
2594 fi
2595
2596 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2597 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2598
2599 check_func  fcntl
2600 check_func  fork
2601 check_func  getaddrinfo $network_extralibs
2602 check_func  gethrtime
2603 check_func  getrusage
2604 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2605 check_func  inet_aton $network_extralibs
2606 check_func  isatty
2607 check_func  ${malloc_prefix}memalign            && enable memalign
2608 check_func  mkstemp
2609 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2610 check_func  setrlimit
2611 check_func  strerror_r
2612 check_func_headers io.h setmode
2613 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2614 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2615 check_func_headers windows.h GetProcessTimes
2616 check_func_headers windows.h VirtualAlloc
2617
2618 check_header conio.h
2619 check_header dlfcn.h
2620 check_header dxva2api.h
2621 check_header malloc.h
2622 check_header poll.h
2623 check_header sys/mman.h
2624 check_header sys/resource.h
2625 check_header sys/select.h
2626 check_header termios.h
2627 check_header vdpau/vdpau.h
2628 check_header vdpau/vdpau_x11.h
2629 check_header X11/extensions/XvMClib.h
2630
2631 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2632
2633 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2634      enabled_any $need_memalign ; then
2635     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2636 fi
2637
2638 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2639 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2640
2641 # check for some common methods of building with pthread support
2642 # do this before the optional library checks as some of them require pthreads
2643 if ! disabled pthreads && ! enabled w32threads; then
2644     enable pthreads
2645     if check_func pthread_create; then
2646         :
2647     elif check_func pthread_create -pthread; then
2648         add_cflags -pthread
2649         add_extralibs -pthread
2650     elif check_func pthread_create -pthreads; then
2651         add_cflags -pthreads
2652         add_extralibs -pthreads
2653     elif check_func pthread_create -lpthreadGC2; then
2654         add_extralibs -lpthreadGC2
2655     elif ! check_lib pthread.h pthread_create -lpthread; then
2656         disable pthreads
2657     fi
2658 fi
2659
2660 for thread in $THREADS_LIST; do
2661     if enabled $thread; then
2662         test -n "$thread_type" &&
2663             die "ERROR: Only one thread type must be selected." ||
2664             thread_type="$thread"
2665     fi
2666 done
2667
2668 check_lib math.h sin -lm
2669 disabled vaapi || check_lib va/va.h vaInitialize -lva
2670
2671 check_mathfunc exp2
2672 check_mathfunc exp2f
2673 check_mathfunc llrint
2674 check_mathfunc llrintf
2675 check_mathfunc log2
2676 check_mathfunc log2f
2677 check_mathfunc lrint
2678 check_mathfunc lrintf
2679 check_mathfunc round
2680 check_mathfunc roundf
2681 check_mathfunc truncf
2682
2683 # these are off by default, so fail if requested and not available
2684 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2685 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2686                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2687                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2688 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2689 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2690 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2691 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2692 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2693 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2694 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2695 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2696                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2697 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2698                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2699 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2700 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2701 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2702 enabled libvpx     && {
2703     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2704                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2705     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2706                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2707 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2708                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2709                         die "ERROR: libx264 version must be >= 0.98."; }
2710 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2711 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2712 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2713
2714 # libdc1394 check
2715 if enabled libdc1394; then
2716     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2717         enable libdc1394_2; } ||
2718     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2719         enable libdc1394_1; } ||
2720     die "ERROR: No version of libdc1394 found "
2721 fi
2722
2723 SDL_CONFIG="${cross_prefix}sdl-config"
2724 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2725     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2726     sdl_libs=$("${SDL_CONFIG}" --libs)
2727     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2728     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2729     enable sdl &&
2730     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2731 fi
2732
2733 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2734
2735 if enabled network; then
2736     check_type "sys/types.h sys/socket.h" socklen_t
2737     check_type netdb.h "struct addrinfo"
2738     check_type netinet/in.h "struct ipv6_mreq"
2739     check_type netinet/in.h "struct sockaddr_in6"
2740     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2741     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2742     # Prefer arpa/inet.h over winsock2
2743     if check_header arpa/inet.h ; then
2744         check_func closesocket
2745     elif check_header winsock2.h ; then
2746         check_func_headers winsock2.h closesocket -lws2 && \
2747             network_extralibs="-lws2" || \
2748         { check_func_headers winsock2.h closesocket -lws2_32 && \
2749             network_extralibs="-lws2_32"; }
2750         check_type ws2tcpip.h socklen_t
2751         check_type ws2tcpip.h "struct addrinfo"
2752         check_type ws2tcpip.h "struct ipv6_mreq"
2753         check_type ws2tcpip.h "struct sockaddr_in6"
2754         check_type ws2tcpip.h "struct sockaddr_storage"
2755         check_struct winsock2.h "struct sockaddr" sa_len
2756     else
2757         disable network
2758     fi
2759 fi
2760
2761 check_header linux/videodev.h
2762 check_header linux/videodev2.h
2763 check_header sys/videoio.h
2764
2765 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2766 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2767 # w32api 3.12 had it defined wrong
2768 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2769
2770 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2771 { check_header dev/bktr/ioctl_meteor.h &&
2772   check_header dev/bktr/ioctl_bt848.h; } ||
2773 { check_header machine/ioctl_meteor.h &&
2774   check_header machine/ioctl_bt848.h; } ||
2775 { check_header dev/video/meteor/ioctl_meteor.h &&
2776   check_header dev/video/bktr/ioctl_bt848.h; } ||
2777 check_header dev/ic/bt8xx.h
2778
2779 check_header sys/soundcard.h
2780 check_header soundcard.h
2781
2782 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2783
2784 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2785
2786 enabled x11grab                         &&
2787 check_header X11/Xlib.h                 &&
2788 check_header X11/extensions/XShm.h      &&
2789 check_header X11/extensions/Xfixes.h    &&
2790 check_func XOpenDisplay -lX11           &&
2791 check_func XShmCreateImage -lX11 -lXext &&
2792 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2793
2794 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2795 check_cpp_condition \
2796     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2797     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2798       disable vdpau; }
2799 fi
2800
2801 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2802
2803 # add some useful compiler flags if supported
2804 check_cflags -Wdeclaration-after-statement
2805 check_cflags -Wall
2806 check_cflags -Wno-parentheses
2807 check_cflags -Wno-switch
2808 check_cflags -Wdisabled-optimization
2809 check_cflags -Wpointer-arith
2810 check_cflags -Wredundant-decls
2811 check_cflags -Wno-pointer-sign
2812 check_cflags -Wcast-qual
2813 check_cflags -Wwrite-strings
2814 check_cflags -Wtype-limits
2815 check_cflags -Wundef
2816 check_cflags -Wmissing-prototypes
2817 enabled extra_warnings && check_cflags -Winline
2818
2819 # add some linker flags
2820 check_ldflags -Wl,--warn-common
2821 check_ldflags -Wl,--as-needed
2822 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'
2823 check_ldflags -Wl,-Bsymbolic
2824
2825 echo "X{};" > $TMPV
2826 if test_ldflags -Wl,--version-script,$TMPV; then
2827     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2828     check_cc <<EOF && enable symver_asm_label
2829 void ff_foo(void) __asm__ ("av_foo@VERSION");
2830 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2831 EOF
2832     check_cc <<EOF && enable symver_gnu_asm
2833 __asm__(".symver ff_foo,av_foo@VERSION");
2834 void ff_foo(void) {}
2835 EOF
2836 fi
2837
2838 if enabled small; then
2839     add_cflags $size_cflags
2840     optimizations="small"
2841 elif enabled optimizations; then
2842     add_cflags $speed_cflags
2843 else
2844     add_cflags $noopt_cflags
2845 fi
2846 check_cflags -fno-math-errno
2847 check_cflags -fno-signed-zeros
2848
2849 if enabled icc; then
2850     # Just warnings, no remarks
2851     check_cflags -w1
2852     # -wd: Disable following warnings
2853     # 144, 167, 556: -Wno-pointer-sign
2854     # 10006: ignoring unknown option -fno-signed-zeros
2855     # 10156: ignoring option '-W'; no argument required
2856     check_cflags -wd144,167,556,10006,10156
2857     # 11030: Warning unknown option --as-needed
2858     # 10156: ignoring option '-export'; no argument required
2859     check_ldflags -wd10156,11030
2860     # Allow to compile with optimizations
2861     check_ldflags -march=$cpu
2862     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2863     enable ebp_available
2864 elif enabled ccc; then
2865     # disable some annoying warnings
2866     add_cflags -msg_disable cvtu32to64
2867     add_cflags -msg_disable embedcomment
2868     add_cflags -msg_disable needconstext
2869     add_cflags -msg_disable nomainieee
2870     add_cflags -msg_disable ptrmismatch1
2871     add_cflags -msg_disable unreachcode
2872 elif enabled gcc; then
2873     check_cflags -fno-tree-vectorize
2874     check_cflags -Werror=implicit-function-declaration
2875     check_cflags -Werror=missing-prototypes
2876 elif enabled clang; then
2877     check_cflags -Qunused-arguments
2878 elif enabled armcc; then
2879     # 2523: use of inline assembler is deprecated
2880     add_cflags -Wrvct,--diag_suppress=2523
2881     add_cflags -Wrvct,--diag_suppress=1207
2882 elif enabled tms470; then
2883     add_cflags -pds=824 -pds=837
2884 fi
2885
2886 enabled_any $THREADS_LIST      && enable threads
2887
2888 check_deps $CONFIG_LIST       \
2889            $CONFIG_EXTRA      \
2890            $HAVE_LIST         \
2891            $DECODER_LIST      \
2892            $ENCODER_LIST      \
2893            $HWACCEL_LIST      \
2894            $PARSER_LIST       \
2895            $BSF_LIST          \
2896            $DEMUXER_LIST      \
2897            $MUXER_LIST        \
2898            $FILTER_LIST       \
2899            $INDEV_LIST        \
2900            $OUTDEV_LIST       \
2901            $PROTOCOL_LIST     \
2902            $ACODEC_TESTS      \
2903            $VCODEC_TESTS      \
2904            $LAVF_TESTS        \
2905            $LAVFI_TESTS       \
2906            $SEEK_TESTS        \
2907
2908 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2909
2910 echo "install prefix            $prefix"
2911 echo "source path               $source_path"
2912 echo "C compiler                $cc"
2913 echo "ARCH                      $arch ($cpu)"
2914 if test "$build_suffix" != ""; then
2915     echo "build suffix              $build_suffix"
2916 fi
2917 if test "$extra_version" != ""; then
2918     echo "version string suffix     $extra_version"
2919 fi
2920 echo "big-endian                ${bigendian-no}"
2921 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2922 if enabled x86; then
2923     echo "yasm                      ${yasm-no}"
2924     echo "MMX enabled               ${mmx-no}"
2925     echo "MMX2 enabled              ${mmx2-no}"
2926     echo "3DNow! enabled            ${amd3dnow-no}"
2927     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2928     echo "SSE enabled               ${sse-no}"
2929     echo "SSSE3 enabled             ${ssse3-no}"
2930     echo "CMOV enabled              ${cmov-no}"
2931     echo "CMOV is fast              ${fast_cmov-no}"
2932     echo "EBX available             ${ebx_available-no}"
2933     echo "EBP available             ${ebp_available-no}"
2934     echo "10 operands supported     ${ten_operands-no}"
2935 fi
2936 if enabled arm; then
2937     echo "ARMv5TE enabled           ${armv5te-no}"
2938     echo "ARMv6 enabled             ${armv6-no}"
2939     echo "ARMv6T2 enabled           ${armv6t2-no}"
2940     echo "ARM VFP enabled           ${armvfp-no}"
2941     echo "IWMMXT enabled            ${iwmmxt-no}"
2942     echo "NEON enabled              ${neon-no}"
2943 fi
2944 if enabled mips; then
2945     echo "MMI enabled               ${mmi-no}"
2946 fi
2947 if enabled ppc; then
2948     echo "AltiVec enabled           ${altivec-no}"
2949     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2950     echo "dcbzl available           ${dcbzl-no}"
2951 fi
2952 if enabled sparc; then
2953     echo "VIS enabled               ${vis-no}"
2954 fi
2955 echo "debug symbols             ${debug-no}"
2956 echo "strip symbols             ${stripping-no}"
2957 echo "optimizations             ${optimizations-no}"
2958 echo "static                    ${static-no}"
2959 echo "shared                    ${shared-no}"
2960 echo "postprocessing support    ${postproc-no}"
2961 echo "new filter support        ${avfilter-no}"
2962 echo "network support           ${network-no}"
2963 echo "threading support         ${thread_type-no}"
2964 echo "SDL support               ${sdl-no}"
2965 echo "Sun medialib support      ${mlib-no}"
2966 echo "AVISynth enabled          ${avisynth-no}"
2967 echo "libdc1394 support         ${libdc1394-no}"
2968 echo "libdirac enabled          ${libdirac-no}"
2969 echo "libfaac enabled           ${libfaac-no}"
2970 echo "libgsm enabled            ${libgsm-no}"
2971 echo "libmp3lame enabled        ${libmp3lame-no}"
2972 echo "libnut enabled            ${libnut-no}"
2973 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2974 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2975 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2976 echo "librtmp enabled           ${librtmp-no}"
2977 echo "libschroedinger enabled   ${libschroedinger-no}"
2978 echo "libspeex enabled          ${libspeex-no}"
2979 echo "libtheora enabled         ${libtheora-no}"
2980 echo "libvorbis enabled         ${libvorbis-no}"
2981 echo "libvpx enabled            ${libvpx-no}"
2982 echo "libx264 enabled           ${libx264-no}"
2983 echo "libxavs enabled           ${libxavs-no}"
2984 echo "libxvid enabled           ${libxvid-no}"
2985 echo "zlib enabled              ${zlib-no}"
2986 echo "bzlib enabled             ${bzlib-no}"
2987 echo
2988
2989 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2990     echo "Enabled ${type}s:"
2991     eval list=\$$(toupper $type)_LIST
2992     print_enabled '_*' $list | sort | pr -3 -t
2993     echo
2994 done
2995
2996 license="LGPL version 2.1 or later"
2997 if enabled nonfree; then
2998     license="nonfree and unredistributable"
2999 elif enabled gplv3; then
3000     license="GPL version 3 or later"
3001 elif enabled lgplv3; then
3002     license="LGPL version 3 or later"
3003 elif enabled gpl; then
3004     license="GPL version 2 or later"
3005 fi
3006
3007 echo "License: $license"
3008
3009 echo "Creating config.mak and config.h..."
3010
3011 # build tree in object directory if source path is different from current one
3012 if enabled source_path_used; then
3013     DIRS="
3014         doc
3015         libavcodec
3016         libavcodec/$arch
3017         libavcore
3018         libavdevice
3019         libavfilter
3020         libavformat
3021         libavutil
3022         libavutil/$arch
3023         libpostproc
3024         libswscale
3025         libswscale/$arch
3026         tests
3027         tools
3028     "
3029     FILES="
3030         Makefile
3031         common.mak
3032         subdir.mak
3033         doc/texi2pod.pl
3034         libavcodec/Makefile
3035         libavcodec/${arch}/Makefile
3036         libavcore/Makefile
3037         libavdevice/Makefile
3038         libavfilter/Makefile
3039         libavformat/Makefile
3040         libavutil/Makefile
3041         libpostproc/Makefile
3042         libswscale/Makefile
3043     "
3044     map 'mkdir -p $v' $DIRS;
3045     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3046 fi
3047
3048 enabled stripping || strip="echo skipping strip"
3049
3050 cat > config.mak <<EOF
3051 # Automatically generated by configure - do not modify!
3052 ifndef FFMPEG_CONFIG_MAK
3053 FFMPEG_CONFIG_MAK=1
3054 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3055 prefix=$prefix
3056 LIBDIR=\$(DESTDIR)$libdir
3057 SHLIBDIR=\$(DESTDIR)$shlibdir
3058 INCDIR=\$(DESTDIR)$incdir
3059 BINDIR=\$(DESTDIR)$bindir
3060 DATADIR=\$(DESTDIR)$datadir
3061 MANDIR=\$(DESTDIR)$mandir
3062 SRC_PATH="$source_path"
3063 SRC_PATH_BARE=$source_path
3064 BUILD_ROOT="$PWD"
3065 CC_IDENT=$cc_ident
3066 ARCH=$arch
3067 CC=$cc
3068 AS=$as
3069 LD=$ld
3070 DEPCC=$dep_cc
3071 YASM=$yasmexe
3072 YASMDEP=$yasmexe
3073 AR=$ar
3074 RANLIB=$ranlib
3075 CP=cp -p
3076 LN_S=$ln_s
3077 STRIP=$strip
3078 CPPFLAGS=$CPPFLAGS
3079 CFLAGS=$CFLAGS
3080 ASFLAGS=$ASFLAGS
3081 CC_O=$CC_O
3082 LDFLAGS=$LDFLAGS
3083 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3084 SHFLAGS=$SHFLAGS
3085 YASMFLAGS=$YASMFLAGS
3086 BUILDSUF=$build_suffix
3087 FULLNAME=$FULLNAME
3088 LIBPREF=$LIBPREF
3089 LIBSUF=$LIBSUF
3090 LIBNAME=$LIBNAME
3091 SLIBPREF=$SLIBPREF
3092 SLIBSUF=$SLIBSUF
3093 EXESUF=$EXESUF
3094 EXTRA_VERSION=$extra_version
3095 DEPFLAGS=$DEPFLAGS
3096 CCDEP=$CCDEP
3097 ASDEP=$ASDEP
3098 CC_DEPFLAGS=$CC_DEPFLAGS
3099 AS_DEPFLAGS=$AS_DEPFLAGS
3100 HOSTCC=$host_cc
3101 HOSTCFLAGS=$host_cflags
3102 HOSTEXESUF=$HOSTEXESUF
3103 HOSTLDFLAGS=$host_ldflags
3104 HOSTLIBS=$host_libs
3105 TARGET_EXEC=$target_exec
3106 TARGET_PATH=$target_path
3107 SDL_LIBS=$sdl_libs
3108 SDL_CFLAGS=$sdl_cflags
3109 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3110 EXTRALIBS=$extralibs
3111 INSTALL=install
3112 LIBTARGET=${LIBTARGET}
3113 SLIBNAME=${SLIBNAME}
3114 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3115 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3116 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3117 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3118 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3119 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3120 SAMPLES=$samples
3121 EOF
3122
3123 get_version(){
3124     name=$1
3125     file=$source_path/$2
3126     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3127     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3128     lcname=$(tolower $name)
3129     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3130     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3131 }
3132
3133 get_version LIBSWSCALE  libswscale/swscale.h
3134 get_version LIBPOSTPROC libpostproc/postprocess.h
3135 get_version LIBAVCODEC  libavcodec/avcodec.h
3136 get_version LIBAVCORE   libavcore/avcore.h
3137 get_version LIBAVDEVICE libavdevice/avdevice.h
3138 get_version LIBAVFORMAT libavformat/avformat.h
3139 get_version LIBAVUTIL   libavutil/avutil.h
3140 get_version LIBAVFILTER libavfilter/avfilter.h
3141
3142 cat > $TMPH <<EOF
3143 /* Automatically generated by configure - do not modify! */
3144 #ifndef FFMPEG_CONFIG_H
3145 #define FFMPEG_CONFIG_H
3146 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3147 #define FFMPEG_LICENSE "$(c_escape $license)"
3148 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3149 #define CC_TYPE "$cc_type"
3150 #define CC_VERSION $cc_version
3151 #define restrict $_restrict
3152 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3153 #define EXTERN_PREFIX "${extern_prefix}"
3154 #define EXTERN_ASM ${extern_prefix}
3155 EOF
3156
3157 test -n "$malloc_prefix" &&
3158     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3159
3160 if enabled small || disabled optimizations; then
3161     echo "#undef  av_always_inline"  >> $TMPH
3162     echo "#define av_always_inline"  >> $TMPH
3163 fi
3164
3165 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3166 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3167 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3168                                       $CONFIG_EXTRA      \
3169                                       $DECODER_LIST      \
3170                                       $ENCODER_LIST      \
3171                                       $HWACCEL_LIST      \
3172                                       $PARSER_LIST       \
3173                                       $BSF_LIST          \
3174                                       $DEMUXER_LIST      \
3175                                       $MUXER_LIST        \
3176                                       $FILTER_LIST       \
3177                                       $PROTOCOL_LIST     \
3178                                       $INDEV_LIST        \
3179                                       $OUTDEV_LIST       \
3180
3181 cat >>config.mak <<EOF
3182 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3183 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3184 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3185 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3186 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3187 EOF
3188
3189 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3190 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3191
3192 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3193 cp_if_changed $TMPH config.h
3194 touch .config
3195
3196 cat > $TMPH <<EOF
3197 /* Generated by ffconf */
3198 #ifndef AVUTIL_AVCONFIG_H
3199 #define AVUTIL_AVCONFIG_H
3200 EOF
3201
3202 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3203
3204 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3205
3206 cp_if_changed $TMPH libavutil/avconfig.h
3207
3208 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
3209
3210 test -n "$WARNINGS" && printf "\n$WARNINGS"
3211
3212 # build pkg-config files
3213
3214 pkgconfig_generate(){
3215 name=$1
3216 shortname=${name#lib}${build_suffix}
3217 comment=$2
3218 version=$3
3219 libs=$4
3220 requires=$5
3221 enabled ${name#lib} || return 0
3222 cat <<EOF > $name/$name.pc
3223 prefix=$prefix
3224 exec_prefix=\${prefix}
3225 libdir=$libdir
3226 includedir=$incdir
3227
3228 Name: $name
3229 Description: $comment
3230 Version: $version
3231 Requires: $(enabled shared || echo $requires)
3232 Requires.private: $(enabled shared && echo $requires)
3233 Conflicts:
3234 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3235 Libs.private: $(enabled shared && echo $libs)
3236 Cflags: -I\${includedir}
3237 EOF
3238 cat <<EOF > $name/$name-uninstalled.pc
3239 prefix=
3240 exec_prefix=
3241 libdir=\${pcfiledir}
3242 includedir=${source_path}
3243
3244 Name: $name
3245 Description: $comment
3246 Version: $version
3247 Requires: $requires
3248 Conflicts:
3249 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3250 Cflags: -I\${includedir}
3251 EOF
3252 }
3253
3254 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3255 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3256 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3257 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3258 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3259 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3260 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3261 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"