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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avcore         disable libavcore build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable GPLed postprocessing support [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --disable-vaapi          disable VAAPI code
 112   --disable-vdpau          disable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 183                            native implementation exists [no]
 184   --enable-libvpx          enable VP8 support via libvpx [no]
 185   --enable-libx264         enable H.264 encoding via x264 [no]
 186   --enable-libxavs         enable AVS encoding via xavs [no]
 187   --enable-libxvid         enable Xvid encoding via xvidcore,
 188                            native MPEG-4/Xvid encoder exists [no]
 189   --enable-mlib            enable Sun medialib [no]
 190   --enable-zlib            enable zlib [autodetect]
 191
 192 Advanced options (experts only):
 193   --source-path=PATH       path to source code [$source_path]
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-armv5te        disable armv5te optimizations
 227   --disable-armv6          disable armv6 optimizations
 228   --disable-armv6t2        disable armv6t2 optimizations
 229   --disable-armvfp         disable ARM VFP optimizations
 230   --disable-iwmmxt         disable iwmmxt optimizations
 231   --disable-mmi            disable MMI optimizations
 232   --disable-neon           disable neon optimizations
 233   --disable-vis            disable VIS optimizations
 234   --disable-yasm           disable use of yasm assembler
 235   --enable-pic             build position-independent code
 236   --malloc-prefix=PFX      prefix malloc and related names with PFX
 237   --enable-sram            allow use of on-chip SRAM
 238   --disable-symver         disable symbol versioning
 239
 240 Developer options (useful when working on FFmpeg itself):
 241   --disable-debug          disable debugging symbols
 242   --enable-debug=LEVEL     set the debug level [$debuglevel]
 243   --disable-optimizations  disable compiler optimizations
 244   --enable-extra-warnings  enable more compiler warnings
 245   --disable-stripping      disable stripping of executables and shared libraries
 246   --samples=PATH           location of test samples for FATE
 247
 248 NOTE: Object files are built at the place where configure is launched.
 249 EOF
 250   exit 0
 251 }
 252
 253 quotes='""'
 254
 255 log(){
 256     echo "$@" >> $logfile
 257 }
 258
 259 log_file(){
 260     log BEGIN $1
 261     pr -n -t $1 >> $logfile
 262     log END $1
 263 }
 264
 265 echolog(){
 266     log "$@"
 267     echo "$@"
 268 }
 269
 270 warn(){
 271     log "WARNING: $*"
 272     WARNINGS="${WARNINGS}WARNING: $*\n"
 273 }
 274
 275 die(){
 276     echolog "$@"
 277     cat <<EOF
 278
 279 If you think configure made a mistake, make sure you are using the latest
 280 version from Git.  If the latest version fails, report the problem to the
 281 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 282 EOF
 283     if disabled logging; then
 284         cat <<EOF
 285 Rerun configure with logging enabled (do not use --disable-logging), and
 286 include the log this produces with your report.
 287 EOF
 288     else
 289 cat <<EOF
 290 Include the log file "$logfile" produced by configure as this will help
 291 solving the problem.
 292 EOF
 293     fi
 294     exit 1
 295 }
 296
 297 # Avoid locale weirdness, besides we really just want to translate ASCII.
 298 toupper(){
 299     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 300 }
 301
 302 tolower(){
 303     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 304 }
 305
 306 c_escape(){
 307     echo "$*" | sed 's/["\\]/\\\0/g'
 308 }
 309
 310 sh_quote(){
 311     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 312     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 313     echo "$v"
 314 }
 315
 316 filter(){
 317     pat=$1
 318     shift
 319     for v; do
 320         eval "case $v in $pat) echo $v ;; esac"
 321     done
 322 }
 323
 324 map(){
 325     m=$1
 326     shift
 327     for v; do eval $m; done
 328 }
 329
 330 set_all(){
 331     value=$1
 332     shift
 333     for var in $*; do
 334         eval $var=$value
 335     done
 336 }
 337
 338 set_weak(){
 339     value=$1
 340     shift
 341     for var; do
 342         eval : \${$var:=$value}
 343     done
 344 }
 345
 346 pushvar(){
 347     for var in $*; do
 348         eval level=\${${var}_level:=0}
 349         eval ${var}_${level}="\$$var"
 350         eval ${var}_level=$(($level+1))
 351     done
 352 }
 353
 354 popvar(){
 355     for var in $*; do
 356         eval level=\${${var}_level:-0}
 357         test $level = 0 && continue
 358         eval level=$(($level-1))
 359         eval $var="\${${var}_${level}}"
 360         eval ${var}_level=$level
 361         eval unset ${var}_${level}
 362     done
 363 }
 364
 365 enable(){
 366     set_all yes $*
 367 }
 368
 369 disable(){
 370     set_all no $*
 371 }
 372
 373 enable_weak(){
 374     set_weak yes $*
 375 }
 376
 377 disable_weak(){
 378     set_weak no $*
 379 }
 380
 381 enable_safe(){
 382     for var; do
 383         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 384     done
 385 }
 386
 387 disable_safe(){
 388     for var; do
 389         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 390     done
 391 }
 392
 393 do_enable_deep(){
 394     for var; do
 395         enabled $var && continue
 396         eval sel="\$${var}_select"
 397         eval sgs="\$${var}_suggest"
 398         pushvar var sgs
 399         enable_deep $sel
 400         popvar sgs
 401         enable_deep_weak $sgs
 402         popvar var
 403     done
 404 }
 405
 406 enable_deep(){
 407     do_enable_deep $*
 408     enable $*
 409 }
 410
 411 enable_deep_weak(){
 412     do_enable_deep $*
 413     enable_weak $*
 414 }
 415
 416 enabled(){
 417     test "${1#!}" = "$1" && op== || op=!=
 418     eval test "x\$${1#!}" $op "xyes"
 419 }
 420
 421 disabled(){
 422     test "${1#!}" = "$1" && op== || op=!=
 423     eval test "x\$${1#!}" $op "xno"
 424 }
 425
 426 enabled_all(){
 427     for opt; do
 428         enabled $opt || return 1
 429     done
 430 }
 431
 432 disabled_all(){
 433     for opt; do
 434         disabled $opt || return 1
 435     done
 436 }
 437
 438 enabled_any(){
 439     for opt; do
 440         enabled $opt && return 0
 441     done
 442 }
 443
 444 disabled_any(){
 445     for opt; do
 446         disabled $opt && return 0
 447     done
 448     return 1
 449 }
 450
 451 set_default(){
 452     for opt; do
 453         eval : \${$opt:=\$${opt}_default}
 454     done
 455 }
 456
 457 is_in(){
 458     value=$1
 459     shift
 460     for var in $*; do
 461         [ $var = $value ] && return 0
 462     done
 463     return 1
 464 }
 465
 466 check_deps(){
 467     for cfg; do
 468         cfg="${cfg#!}"
 469         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 470         disabled ${cfg}_checking && continue
 471         enable ${cfg}_checking
 472
 473         eval dep_all="\$${cfg}_deps"
 474         eval dep_any="\$${cfg}_deps_any"
 475         eval dep_sel="\$${cfg}_select"
 476         eval dep_sgs="\$${cfg}_suggest"
 477         eval dep_ifa="\$${cfg}_if"
 478         eval dep_ifn="\$${cfg}_if_any"
 479
 480         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 481         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 482         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 483
 484         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 485         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 486         enabled_all  $dep_all || disable $cfg
 487         enabled_any  $dep_any || disable $cfg
 488         disabled_any $dep_sel && disable $cfg
 489
 490         if enabled $cfg; then
 491             eval dep_extralibs="\$${cfg}_extralibs"
 492             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 493             enable_deep $dep_sel
 494             enable_deep_weak $dep_sgs
 495         fi
 496
 497         disable ${cfg}_checking
 498     done
 499 }
 500
 501 print_config_h(){
 502     enabled $1 && v=1 || v=0
 503     echo "#define $2 $v"
 504 }
 505
 506 print_config_mak(){
 507     enabled $1 && v= || v=!
 508     echo "$v$2=yes"
 509 }
 510
 511 print_config_asm(){
 512     enabled $1 && echo "%define $2"
 513 }
 514
 515 print_config(){
 516     pfx=$1
 517     files=$2
 518     shift 2
 519     for cfg; do
 520         ucname="$(toupper $cfg)"
 521         for f in $files; do
 522             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 523         done
 524     done
 525 }
 526
 527 print_enabled(){
 528     test "$1" = -n && end=" " && shift || end="\n"
 529     suf=$1
 530     shift
 531     for v; do
 532         enabled $v && printf "%s$end" ${v%$suf};
 533     done
 534 }
 535
 536 append(){
 537     var=$1
 538     shift
 539     eval "$var=\"\$$var $*\""
 540 }
 541
 542 prepend(){
 543     var=$1
 544     shift
 545     eval "$var=\"$* \$$var\""
 546 }
 547
 548 add_cppflags(){
 549     append CPPFLAGS $($filter_cppflags "$@")
 550 }
 551
 552 add_cflags(){
 553     append CFLAGS $($filter_cflags "$@")
 554 }
 555
 556 add_asflags(){
 557     append ASFLAGS $($filter_asflags "$@")
 558 }
 559
 560 add_ldflags(){
 561     append LDFLAGS "$@"
 562 }
 563
 564 add_extralibs(){
 565     prepend extralibs "$@"
 566 }
 567
 568 check_cmd(){
 569     log "$@"
 570     "$@" >> $logfile 2>&1
 571 }
 572
 573 check_cc(){
 574     log check_cc "$@"
 575     cat > $TMPC
 576     log_file $TMPC
 577     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 578 }
 579
 580 check_cpp(){
 581     log check_cpp "$@"
 582     cat > $TMPC
 583     log_file $TMPC
 584     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 585 }
 586
 587 check_as(){
 588     log check_as "$@"
 589     cat > $TMPC
 590     log_file $TMPC
 591     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 592 }
 593
 594 check_asm(){
 595     log check_asm "$@"
 596     name="$1"
 597     code="$2"
 598     shift 2
 599     disable $name
 600     check_as "$@" <<EOF && enable $name
 601 void foo(void){ __asm__ volatile($code); }
 602 EOF
 603 }
 604
 605 check_yasm(){
 606     log check_yasm "$@"
 607     echo "$1" > $TMPS
 608     log_file $TMPS
 609     shift 1
 610     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 611 }
 612
 613 check_ld(){
 614     log check_ld "$@"
 615     flags=''
 616     libs=''
 617     for f; do
 618         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 619     done
 620     check_cc $($filter_cflags $flags) || return
 621     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 622 }
 623
 624 check_cppflags(){
 625     log check_cppflags "$@"
 626     set -- $($filter_cppflags "$@")
 627     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 628 int x;
 629 EOF
 630 }
 631
 632 check_cflags(){
 633     log check_cflags "$@"
 634     set -- $($filter_cflags "$@")
 635     check_cc "$@" <<EOF && append CFLAGS "$@"
 636 int x;
 637 EOF
 638 }
 639
 640 test_ldflags(){
 641     log test_ldflags "$@"
 642     check_ld "$@" <<EOF
 643 int main(void){ return 0; }
 644 EOF
 645 }
 646
 647 check_ldflags(){
 648     log check_ldflags "$@"
 649     test_ldflags "$@" && add_ldflags "$@"
 650 }
 651
 652 check_header(){
 653     log check_header "$@"
 654     header=$1
 655     shift
 656     disable_safe $header
 657     check_cpp "$@" <<EOF && enable_safe $header
 658 #include <$header>
 659 int x;
 660 EOF
 661 }
 662
 663 check_func(){
 664     log check_func "$@"
 665     func=$1
 666     shift
 667     disable $func
 668     check_ld "$@" <<EOF && enable $func
 669 extern int $func();
 670 int main(void){ $func(); }
 671 EOF
 672 }
 673
 674 check_mathfunc(){
 675     log check_mathfunc "$@"
 676     func=$1
 677     shift
 678     disable $func
 679     check_ld "$@" <<EOF && enable $func
 680 #include <math.h>
 681 float foo(float f) { return $func(f); }
 682 int main(void){ return 0; }
 683 EOF
 684 }
 685
 686 check_func_headers(){
 687     log check_func_headers "$@"
 688     headers=$1
 689     func=$2
 690     shift 2
 691     disable $func
 692     incs=""
 693     for hdr in $headers; do
 694         incs="$incs
 695 #include <$hdr>"
 696     done
 697     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 698 $incs
 699 int main(int argc, char **argv){
 700     return (long) $func;
 701 }
 702 EOF
 703 }
 704
 705 check_cpp_condition(){
 706     log check_cpp_condition "$@"
 707     header=$1
 708     condition=$2
 709     shift 2
 710     check_cpp $($filter_cppflags "$@") <<EOF
 711 #include <$header>
 712 #if !($condition)
 713 #error "unsatisfied condition: $condition"
 714 #endif
 715 EOF
 716 }
 717
 718 check_lib(){
 719     log check_lib "$@"
 720     header="$1"
 721     func="$2"
 722     shift 2
 723     check_header $header && check_func $func "$@" && add_extralibs "$@"
 724 }
 725
 726 check_lib2(){
 727     log check_lib2 "$@"
 728     headers="$1"
 729     func="$2"
 730     shift 2
 731     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 732 }
 733
 734 check_exec(){
 735     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 736 }
 737
 738 check_exec_crash(){
 739     code=$(cat)
 740
 741     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 742     # are safe but may not be available everywhere.  Thus we use
 743     # raise(SIGTERM) instead.  The check is run in a subshell so we
 744     # can redirect the "Terminated" message from the shell.  SIGBUS
 745     # is not defined by standard C so it is used conditionally.
 746
 747     (check_exec "$@") >> $logfile 2>&1 <<EOF
 748 #include <signal.h>
 749 static void sighandler(int sig){
 750     raise(SIGTERM);
 751 }
 752 int main(void){
 753     signal(SIGILL, sighandler);
 754     signal(SIGFPE, sighandler);
 755     signal(SIGSEGV, sighandler);
 756 #ifdef SIGBUS
 757     signal(SIGBUS, sighandler);
 758 #endif
 759     { $code }
 760 }
 761 EOF
 762 }
 763
 764 check_type(){
 765     log check_type "$@"
 766     headers=$1
 767     type=$2
 768     shift 2
 769     disable_safe "$type"
 770     incs=""
 771     for hdr in $headers; do
 772         incs="$incs
 773 #include <$hdr>"
 774     done
 775     check_cc "$@" <<EOF && enable_safe "$type"
 776 $incs
 777 $type v;
 778 EOF
 779 }
 780
 781 check_struct(){
 782     log check_type "$@"
 783     headers=$1
 784     struct=$2
 785     member=$3
 786     shift 3
 787     disable_safe "${struct}_${member}"
 788     incs=""
 789     for hdr in $headers; do
 790         incs="$incs
 791 #include <$hdr>"
 792     done
 793     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 794 $incs
 795 const void *p = &(($struct *)0)->$member;
 796 EOF
 797 }
 798
 799 require(){
 800     name="$1"
 801     header="$2"
 802     func="$3"
 803     shift 3
 804     check_lib $header $func "$@" || die "ERROR: $name not found"
 805 }
 806
 807 require2(){
 808     name="$1"
 809     headers="$2"
 810     func="$3"
 811     shift 3
 812     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 813 }
 814
 815 check_host_cc(){
 816     log check_host_cc "$@"
 817     cat > $TMPC
 818     log_file $TMPC
 819     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 820 }
 821
 822 check_host_cflags(){
 823     log check_host_cflags "$@"
 824     check_host_cc "$@" <<EOF && append host_cflags "$@"
 825 int x;
 826 EOF
 827 }
 828
 829 apply(){
 830     file=$1
 831     shift
 832     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 833 }
 834
 835 cp_if_changed(){
 836     cmp -s "$1" "$2" &&
 837         echo "$2 is unchanged" ||
 838         cp -f "$1" "$2"
 839 }
 840
 841 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 842 # system-dependent things.
 843
 844 COMPONENT_LIST="
 845     bsfs
 846     decoders
 847     demuxers
 848     encoders
 849     filters
 850     hwaccels
 851     indevs
 852     muxers
 853     outdevs
 854     parsers
 855     protocols
 856 "
 857
 858 CONFIG_LIST="
 859     $COMPONENT_LIST
 860     aandct
 861     avcodec
 862     avcore
 863     avdevice
 864     avfilter
 865     avformat
 866     avisynth
 867     bzlib
 868     dct
 869     doc
 870     dwt
 871     dxva2
 872     fastdiv
 873     ffmpeg
 874     ffplay
 875     ffprobe
 876     ffserver
 877     fft
 878     frei0r
 879     golomb
 880     gpl
 881     gray
 882     h264dsp
 883     h264pred
 884     hardcoded_tables
 885     huffman
 886     libdc1394
 887     libdirac
 888     libfaac
 889     libgsm
 890     libmp3lame
 891     libnut
 892     libopencore_amrnb
 893     libopencore_amrwb
 894     libopencv
 895     libopenjpeg
 896     librtmp
 897     libschroedinger
 898     libspeex
 899     libtheora
 900     libvorbis
 901     libvpx
 902     libx264
 903     libxavs
 904     libxvid
 905     lpc
 906     lsp
 907     mdct
 908     memalign_hack
 909     mlib
 910     mpegaudio_hp
 911     network
 912     nonfree
 913     pic
 914     postproc
 915     rdft
 916     rtpdec
 917     runtime_cpudetect
 918     shared
 919     small
 920     sram
 921     static
 922     swscale
 923     swscale_alpha
 924     vaapi
 925     vdpau
 926     version3
 927     x11grab
 928     zlib
 929 "
 930
 931 THREADS_LIST='
 932     pthreads
 933     w32threads
 934 '
 935
 936 ARCH_LIST='
 937     alpha
 938     arm
 939     avr32
 940     avr32_ap
 941     avr32_uc
 942     bfin
 943     ia64
 944     m68k
 945     mips
 946     mips64
 947     parisc
 948     ppc
 949     ppc64
 950     s390
 951     sh4
 952     sparc
 953     sparc64
 954     tomi
 955     x86
 956     x86_32
 957     x86_64
 958 '
 959
 960 ARCH_EXT_LIST='
 961     altivec
 962     amd3dnow
 963     amd3dnowext
 964     armv5te
 965     armv6
 966     armv6t2
 967     armvfp
 968     iwmmxt
 969     mmi
 970     mmx
 971     mmx2
 972     neon
 973     ppc4xx
 974     sse
 975     ssse3
 976     vis
 977 '
 978
 979 HAVE_LIST_PUB='
 980     bigendian
 981     fast_unaligned
 982 '
 983
 984 HAVE_LIST="
 985     $ARCH_EXT_LIST
 986     $HAVE_LIST_PUB
 987     $THREADS_LIST
 988     aligned_stack
 989     alsa_asoundlib_h
 990     altivec_h
 991     arpa_inet_h
 992     attribute_may_alias
 993     attribute_packed
 994     bswap
 995     closesocket
 996     cmov
 997     conio_h
 998     dcbzl
 999     dev_bktr_ioctl_bt848_h
1000     dev_bktr_ioctl_meteor_h
1001     dev_ic_bt8xx_h
1002     dev_video_meteor_ioctl_meteor_h
1003     dev_video_bktr_ioctl_bt848_h
1004     dlfcn_h
1005     dlopen
1006     dos_paths
1007     ebp_available
1008     ebx_available
1009     exp2
1010     exp2f
1011     fast_64bit
1012     fast_clz
1013     fast_cmov
1014     fcntl
1015     fork
1016     getaddrinfo
1017     gethrtime
1018     GetProcessMemoryInfo
1019     GetProcessTimes
1020     getrusage
1021     gnu_as
1022     struct_rusage_ru_maxrss
1023     ibm_asm
1024     inet_aton
1025     inline_asm
1026     isatty
1027     ldbrx
1028     libdc1394_1
1029     libdc1394_2
1030     llrint
1031     llrintf
1032     local_aligned_16
1033     local_aligned_8
1034     log2
1035     log2f
1036     loongson
1037     lrint
1038     lrintf
1039     lzo1x_999_compress
1040     machine_ioctl_bt848_h
1041     machine_ioctl_meteor_h
1042     malloc_h
1043     MapViewOfFile
1044     memalign
1045     mkstemp
1046     mmap
1047     pld
1048     posix_memalign
1049     round
1050     roundf
1051     sdl
1052     sdl_video_size
1053     setmode
1054     socklen_t
1055     soundcard_h
1056     poll_h
1057     setrlimit
1058     strerror_r
1059     strtok_r
1060     struct_addrinfo
1061     struct_ipv6_mreq
1062     struct_sockaddr_in6
1063     struct_sockaddr_sa_len
1064     struct_sockaddr_storage
1065     symver
1066     symver_gnu_asm
1067     symver_asm_label
1068     sys_mman_h
1069     sys_resource_h
1070     sys_select_h
1071     sys_soundcard_h
1072     sys_videoio_h
1073     ten_operands
1074     termios_h
1075     threads
1076     truncf
1077     vfp_args
1078     VirtualAlloc
1079     winsock2_h
1080     xform_asm
1081     xmm_clobbers
1082     yasm
1083 "
1084
1085 # options emitted with CONFIG_ prefix but not available on command line
1086 CONFIG_EXTRA="
1087     avutil
1088     gplv3
1089     lgplv3
1090 "
1091
1092 CMDLINE_SELECT="
1093     $ARCH_EXT_LIST
1094     $CONFIG_LIST
1095     $THREADS_LIST
1096     asm
1097     cross_compile
1098     debug
1099     extra_warnings
1100     logging
1101     optimizations
1102     stripping
1103     symver
1104     yasm
1105 "
1106
1107 PATHS_LIST='
1108     bindir
1109     datadir
1110     incdir
1111     libdir
1112     mandir
1113     prefix
1114     shlibdir
1115 '
1116
1117 CMDLINE_SET="
1118     $PATHS_LIST
1119     ar
1120     arch
1121     as
1122     build_suffix
1123     cc
1124     cpu
1125     cross_prefix
1126     dep_cc
1127     extra_version
1128     host_cc
1129     host_cflags
1130     host_ldflags
1131     host_libs
1132     host_os
1133     ld
1134     logfile
1135     malloc_prefix
1136     nm
1137     samples
1138     source_path
1139     strip
1140     sysinclude
1141     sysroot
1142     target_exec
1143     target_os
1144     target_path
1145 "
1146
1147 CMDLINE_APPEND="
1148     extra_cflags
1149 "
1150
1151 # code dependency declarations
1152
1153 # architecture extensions
1154
1155 armv5te_deps="arm"
1156 armv6_deps="arm"
1157 armv6t2_deps="arm"
1158 armvfp_deps="arm"
1159 iwmmxt_deps="arm"
1160 neon_deps="arm"
1161
1162 mmi_deps="mips"
1163
1164 altivec_deps="ppc"
1165 ppc4xx_deps="ppc"
1166
1167 vis_deps="sparc"
1168
1169 x86_64_suggest="cmov fast_cmov"
1170 amd3dnow_deps="mmx"
1171 amd3dnowext_deps="amd3dnow"
1172 mmx_deps="x86"
1173 mmx2_deps="mmx"
1174 sse_deps="mmx"
1175 ssse3_deps="sse"
1176
1177 aligned_stack_if_any="ppc x86"
1178 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1179 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1180 fast_unaligned_if_any="armv6 ppc x86"
1181
1182 need_memalign="altivec neon sse"
1183 inline_asm_deps="!tms470"
1184
1185 symver_if_any="symver_asm_label symver_gnu_asm"
1186
1187 # subsystems
1188 dct_select="rdft"
1189 mdct_select="fft"
1190 rdft_select="fft"
1191
1192 # decoders / encoders / hardware accelerators
1193 aac_decoder_select="mdct rdft"
1194 aac_encoder_select="mdct"
1195 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1196 ac3_decoder_select="mdct ac3_parser"
1197 ac3_encoder_select="mdct"
1198 alac_encoder_select="lpc"
1199 amrnb_decoder_select="lsp"
1200 amrwb_decoder_select="lsp"
1201 atrac1_decoder_select="mdct"
1202 atrac3_decoder_select="mdct"
1203 binkaudio_dct_decoder_select="mdct rdft dct"
1204 binkaudio_rdft_decoder_select="mdct rdft"
1205 cavs_decoder_select="golomb"
1206 cook_decoder_select="mdct"
1207 cscd_decoder_suggest="zlib"
1208 dca_decoder_select="mdct"
1209 dnxhd_encoder_select="aandct"
1210 dxa_decoder_select="zlib"
1211 eac3_decoder_select="ac3_decoder"
1212 eamad_decoder_select="aandct"
1213 eatgq_decoder_select="aandct"
1214 eatqi_decoder_select="aandct"
1215 ffv1_decoder_select="golomb"
1216 flac_decoder_select="golomb"
1217 flac_encoder_select="golomb lpc"
1218 flashsv_decoder_select="zlib"
1219 flashsv_encoder_select="zlib"
1220 flv_decoder_select="h263_decoder"
1221 flv_encoder_select="h263_encoder"
1222 fraps_decoder_select="huffman"
1223 h261_encoder_select="aandct"
1224 h263_decoder_select="h263_parser"
1225 h263_encoder_select="aandct"
1226 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1227 h263i_decoder_select="h263_decoder"
1228 h263p_encoder_select="h263_encoder"
1229 h264_decoder_select="golomb h264dsp h264pred"
1230 h264_dxva2_hwaccel_deps="dxva2api_h"
1231 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1232 h264_vaapi_hwaccel_select="vaapi"
1233 h264_vdpau_decoder_select="vdpau h264_decoder"
1234 imc_decoder_select="fft mdct"
1235 jpegls_decoder_select="golomb"
1236 jpegls_encoder_select="golomb"
1237 ljpeg_encoder_select="aandct"
1238 loco_decoder_select="golomb"
1239 mjpeg_encoder_select="aandct"
1240 mlp_decoder_select="mlp_parser"
1241 mp1float_decoder_select="dct"
1242 mp2float_decoder_select="dct"
1243 mp3adufloat_decoder_select="dct"
1244 mp3float_decoder_select="dct"
1245 mp3on4float_decoder_select="dct"
1246 mpeg1video_encoder_select="aandct"
1247 mpeg2video_encoder_select="aandct"
1248 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1249 mpeg4_encoder_select="h263_encoder"
1250 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1251 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1252 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1253 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1254 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1255 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1256 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1257 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1258 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1259 msmpeg4v1_decoder_select="h263_decoder"
1260 msmpeg4v1_encoder_select="h263_encoder"
1261 msmpeg4v2_decoder_select="h263_decoder"
1262 msmpeg4v2_encoder_select="h263_encoder"
1263 msmpeg4v3_decoder_select="h263_decoder"
1264 msmpeg4v3_encoder_select="h263_encoder"
1265 nellymoser_decoder_select="mdct"
1266 nellymoser_encoder_select="mdct"
1267 png_decoder_select="zlib"
1268 png_encoder_select="zlib"
1269 qcelp_decoder_select="lsp"
1270 qdm2_decoder_select="mdct rdft"
1271 ra_144_encoder_select="lpc"
1272 rv10_decoder_select="h263_decoder"
1273 rv10_encoder_select="h263_encoder"
1274 rv20_decoder_select="h263_decoder"
1275 rv20_encoder_select="h263_encoder"
1276 rv30_decoder_select="golomb h264pred"
1277 rv40_decoder_select="golomb h264pred"
1278 shorten_decoder_select="golomb"
1279 sipr_decoder_select="lsp"
1280 snow_decoder_select="dwt"
1281 snow_encoder_select="aandct dwt"
1282 sonic_decoder_select="golomb"
1283 sonic_encoder_select="golomb"
1284 sonic_ls_encoder_select="golomb"
1285 svq1_encoder_select="aandct"
1286 svq3_decoder_select="golomb h264dsp h264pred"
1287 svq3_decoder_suggest="zlib"
1288 theora_decoder_select="vp3_decoder"
1289 tiff_decoder_suggest="zlib"
1290 tiff_encoder_suggest="zlib"
1291 truehd_decoder_select="mlp_decoder"
1292 tscc_decoder_select="zlib"
1293 twinvq_decoder_select="mdct lsp"
1294 vc1_decoder_select="h263_decoder"
1295 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1296 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1297 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1298 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1299 vorbis_decoder_select="mdct"
1300 vorbis_encoder_select="mdct"
1301 vp6_decoder_select="huffman"
1302 vp6a_decoder_select="vp6_decoder"
1303 vp6f_decoder_select="vp6_decoder"
1304 vp8_decoder_select="h264pred"
1305 wmapro_decoder_select="mdct"
1306 wmav1_decoder_select="mdct"
1307 wmav1_encoder_select="mdct"
1308 wmav2_decoder_select="mdct"
1309 wmav2_encoder_select="mdct"
1310 wmavoice_decoder_select="lsp rdft dct mdct"
1311 wmv1_decoder_select="h263_decoder"
1312 wmv1_encoder_select="h263_encoder"
1313 wmv2_decoder_select="h263_decoder"
1314 wmv2_encoder_select="h263_encoder"
1315 wmv3_decoder_select="vc1_decoder"
1316 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1317 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1318 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1319 zlib_decoder_select="zlib"
1320 zlib_encoder_select="zlib"
1321 zmbv_decoder_select="zlib"
1322 zmbv_encoder_select="zlib"
1323
1324 vaapi_deps="va_va_h"
1325 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1326
1327 # parsers
1328 h264_parser_select="golomb h264dsp h264pred"
1329
1330 # external libraries
1331 libdirac_decoder_deps="libdirac !libschroedinger"
1332 libdirac_encoder_deps="libdirac"
1333 libfaac_encoder_deps="libfaac"
1334 libgsm_decoder_deps="libgsm"
1335 libgsm_encoder_deps="libgsm"
1336 libgsm_ms_decoder_deps="libgsm"
1337 libgsm_ms_encoder_deps="libgsm"
1338 libmp3lame_encoder_deps="libmp3lame"
1339 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1340 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1341 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1342 libopenjpeg_decoder_deps="libopenjpeg"
1343 libschroedinger_decoder_deps="libschroedinger"
1344 libschroedinger_encoder_deps="libschroedinger"
1345 libspeex_decoder_deps="libspeex"
1346 libtheora_encoder_deps="libtheora"
1347 libvorbis_encoder_deps="libvorbis"
1348 libvpx_decoder_deps="libvpx"
1349 libvpx_encoder_deps="libvpx"
1350 libx264_encoder_deps="libx264"
1351 libxavs_encoder_deps="libxavs"
1352 libxvid_encoder_deps="libxvid"
1353
1354 # demuxers / muxers
1355 ac3_demuxer_select="ac3_parser"
1356 asf_stream_muxer_select="asf_muxer"
1357 avisynth_demuxer_deps="avisynth"
1358 dirac_demuxer_select="dirac_parser"
1359 eac3_demuxer_select="ac3_parser"
1360 flac_demuxer_select="flac_parser"
1361 ipod_muxer_select="mov_muxer"
1362 libnut_demuxer_deps="libnut"
1363 libnut_muxer_deps="libnut"
1364 matroska_audio_muxer_select="matroska_muxer"
1365 matroska_demuxer_suggest="zlib bzlib"
1366 mov_demuxer_suggest="zlib"
1367 mp3_demuxer_select="mpegaudio_parser"
1368 mp4_muxer_select="mov_muxer"
1369 mpegtsraw_demuxer_select="mpegts_demuxer"
1370 mxf_d10_muxer_select="mxf_muxer"
1371 ogg_demuxer_select="golomb"
1372 psp_muxer_select="mov_muxer"
1373 rtp_demuxer_select="sdp_demuxer"
1374 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1375 rtsp_demuxer_select="http_protocol rtpdec"
1376 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1377 sap_demuxer_select="sdp_demuxer"
1378 sap_muxer_select="rtp_muxer rtp_protocol"
1379 sdp_demuxer_select="rtpdec"
1380 spdif_muxer_select="aac_parser"
1381 tg2_muxer_select="mov_muxer"
1382 tgp_muxer_select="mov_muxer"
1383 w64_demuxer_deps="wav_demuxer"
1384
1385 # indevs / outdevs
1386 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1387 alsa_outdev_deps="alsa_asoundlib_h"
1388 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1389 dv1394_indev_deps="dv1394 dv_demuxer"
1390 jack_indev_deps="jack_jack_h"
1391 libdc1394_indev_deps="libdc1394"
1392 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1393 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1394 v4l_indev_deps="linux_videodev_h"
1395 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1396 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1397 vfwcap_indev_extralibs="-lavicap32"
1398 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1399 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1400
1401 # protocols
1402 gopher_protocol_deps="network"
1403 http_protocol_deps="network"
1404 http_protocol_select="tcp_protocol"
1405 mmsh_protocol_select="http_protocol"
1406 mmst_protocol_deps="network"
1407 rtmp_protocol_select="tcp_protocol"
1408 rtp_protocol_select="udp_protocol"
1409 tcp_protocol_deps="network"
1410 udp_protocol_deps="network"
1411
1412 # filters
1413 blackframe_filter_deps="gpl"
1414 cropdetect_filter_deps="gpl"
1415 frei0r_filter_deps="frei0r dlopen strtok_r"
1416 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1417 hqdn3d_filter_deps="gpl"
1418 mp_filter_deps="gpl"
1419 scale_filter_deps="swscale"
1420 ocv_filter_deps="libopencv"
1421 yadif_filter_deps="gpl"
1422
1423 # libraries
1424 avdevice_deps="avcodec avformat"
1425 avformat_deps="avcodec"
1426
1427 # programs
1428 ffmpeg_deps="avcodec avformat swscale"
1429 ffmpeg_select="buffer_filter"
1430 ffplay_deps="avcodec avformat swscale sdl"
1431 ffplay_select="rdft"
1432 ffprobe_deps="avcodec avformat"
1433 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1434 ffserver_extralibs='$ldl'
1435
1436 doc_deps="texi2html"
1437
1438 # tests
1439
1440 test_deps(){
1441     suf1=$1
1442     suf2=$2
1443     shift 2
1444     for v; do
1445         dep=${v%=*}
1446         tests=${v#*=}
1447         for name in ${tests}; do
1448             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1449         done
1450     done
1451 }
1452
1453 set_ne_test_deps(){
1454     eval ${1}_be_test_deps="bigendian"
1455     eval ${1}_le_test_deps="!bigendian"
1456 }
1457
1458 test_deps _encoder _decoder                                             \
1459     adpcm_g726=g726                                                     \
1460     adpcm_ima_qt                                                        \
1461     adpcm_ima_wav                                                       \
1462     adpcm_ms                                                            \
1463     adpcm_swf                                                           \
1464     adpcm_yamaha=adpcm_yam                                              \
1465     alac                                                                \
1466     asv1                                                                \
1467     asv2                                                                \
1468     bmp                                                                 \
1469     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1470     dvvideo="dv dv50"                                                   \
1471     ffv1                                                                \
1472     flac                                                                \
1473     flashsv                                                             \
1474     flv                                                                 \
1475     gif                                                                 \
1476     h261                                                                \
1477     h263="h263 h263p"                                                   \
1478     huffyuv                                                             \
1479     jpegls                                                              \
1480     mjpeg="jpg mjpeg ljpeg"                                             \
1481     mp2                                                                 \
1482     mpeg1video="mpeg mpeg1b"                                            \
1483     mpeg2video="mpeg2 mpeg2thread"                                      \
1484     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1485     msmpeg4v3=msmpeg4                                                   \
1486     msmpeg4v2                                                           \
1487     pbm=pbmpipe                                                         \
1488     pcx                                                                 \
1489     pgm="pgm pgmpipe"                                                   \
1490     png                                                                 \
1491     ppm="ppm ppmpipe"                                                   \
1492     rawvideo="rgb yuv"                                                  \
1493     roq                                                                 \
1494     rv10                                                                \
1495     rv20                                                                \
1496     sgi                                                                 \
1497     snow="snow snowll"                                                  \
1498     svq1                                                                \
1499     targa=tga                                                           \
1500     tiff                                                                \
1501     wmav1                                                               \
1502     wmav2                                                               \
1503     wmv1                                                                \
1504     wmv2                                                                \
1505
1506 test_deps _muxer _demuxer                                               \
1507     aiff                                                                \
1508     pcm_alaw=alaw                                                       \
1509     asf                                                                 \
1510     au                                                                  \
1511     avi                                                                 \
1512     dv=dv_fmt                                                           \
1513     ffm                                                                 \
1514     flv=flv_fmt                                                         \
1515     gxf                                                                 \
1516     matroska=mkv                                                        \
1517     mmf                                                                 \
1518     mov                                                                 \
1519     pcm_mulaw=mulaw                                                     \
1520     mxf                                                                 \
1521     nut                                                                 \
1522     ogg                                                                 \
1523     rawvideo=pixfmt                                                     \
1524     rm                                                                  \
1525     swf                                                                 \
1526     mpegts=ts                                                           \
1527     voc                                                                 \
1528     wav                                                                 \
1529     yuv4mpegpipe=yuv4mpeg                                               \
1530
1531 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1532 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1533
1534 set_ne_test_deps pixdesc
1535 set_ne_test_deps pixfmts_copy
1536 set_ne_test_deps pixfmts_crop
1537 set_ne_test_deps pixfmts_hflip
1538 set_ne_test_deps pixfmts_null
1539 set_ne_test_deps pixfmts_pad
1540 set_ne_test_deps pixfmts_scale
1541 set_ne_test_deps pixfmts_vflip
1542
1543 # default parameters
1544
1545 logfile="config.log"
1546
1547 # installation paths
1548 prefix_default="/usr/local"
1549 bindir_default='${prefix}/bin'
1550 datadir_default='${prefix}/share/ffmpeg'
1551 incdir_default='${prefix}/include'
1552 libdir_default='${prefix}/lib'
1553 mandir_default='${prefix}/share/man'
1554 shlibdir_default="$libdir_default"
1555
1556 # toolchain
1557 ar_default="ar"
1558 cc_default="gcc"
1559 cc_version=\"unknown\"
1560 host_cc_default="gcc"
1561 ln_s="ln -sf"
1562 nm_default="nm"
1563 objformat="elf"
1564 ranlib="ranlib"
1565 strip_default="strip"
1566 yasmexe="yasm"
1567 nogas=":"
1568
1569 nm_opts='-g'
1570
1571 # machine
1572 arch_default=$(uname -m)
1573 cpu="generic"
1574
1575 # OS
1576 target_os_default=$(tolower $(uname -s))
1577 host_os=$target_os_default
1578
1579 # configurable options
1580 enable avcodec
1581 enable avcore
1582 enable avdevice
1583 enable avfilter
1584 enable avformat
1585 enable avutil
1586 enable asm
1587 enable debug
1588 enable doc
1589 enable fastdiv
1590 enable ffmpeg
1591 enable ffplay
1592 enable ffprobe
1593 enable ffserver
1594 enable mpegaudio_hp
1595 enable network
1596 enable optimizations
1597 enable protocols
1598 enable static
1599 enable stripping
1600 enable swscale
1601 enable swscale_alpha
1602
1603 # build settings
1604 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1605 FFSERVERLDFLAGS=-Wl,-E
1606 LIBPREF="lib"
1607 LIBSUF=".a"
1608 FULLNAME='$(NAME)$(BUILDSUF)'
1609 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1610 SLIBPREF="lib"
1611 SLIBSUF=".so"
1612 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1613 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1614 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1615 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1616
1617 CC_O='-o $@'
1618
1619 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1620 host_libs='-lm'
1621
1622 target_path='$(CURDIR)'
1623
1624 # since the object filename is not given with the -MM flag, the compiler
1625 # is only able to print the basename, and we must add the path ourselves
1626 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1627 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1628
1629 # find source path
1630 source_path="$(dirname "$0")"
1631 enable source_path_used
1632 if test -f configure; then
1633     source_path="$(pwd)"
1634     disable source_path_used
1635 else
1636     source_path="$(cd "$source_path"; pwd)"
1637     echo "$source_path" | grep -q '[[:blank:]]' &&
1638         die "Out of tree builds are impossible with whitespace in source path."
1639     test -e "$source_path/config.h" &&
1640         die "Out of tree builds are impossible with config.h in source dir."
1641 fi
1642
1643 for v in "$@"; do
1644     r=${v#*=}
1645     l=${v%"$r"}
1646     r=$(sh_quote "$r")
1647     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1648 done
1649
1650 find_things(){
1651     thing=$1
1652     pattern=$2
1653     file=$source_path/$3
1654     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1655 }
1656
1657 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1658 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1659 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1660 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1661 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1662 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1663 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1664 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1665 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1666 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1667 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1668
1669 find_tests(){
1670     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1671 }
1672
1673 ACODEC_TESTS=$(find_tests acodec)
1674 VCODEC_TESTS=$(find_tests vsynth1)
1675 LAVF_TESTS=$(find_tests lavf)
1676 LAVFI_TESTS=$(find_tests lavfi)
1677 SEEK_TESTS=$(find_tests seek seek_)
1678
1679 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1680
1681 for n in $COMPONENT_LIST; do
1682     v=$(toupper ${n%s})_LIST
1683     eval enable \$$v
1684     eval ${n}_if_any="\$$v"
1685 done
1686
1687 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1688
1689 die_unknown(){
1690     echo "Unknown option \"$1\"."
1691     echo "See $0 --help for available options."
1692     exit 1
1693 }
1694
1695 show_list() {
1696     suffix=_$1
1697     shift
1698     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1699     exit 0
1700 }
1701
1702 for opt do
1703     optval="${opt#*=}"
1704     case "$opt" in
1705     --extra-ldflags=*) add_ldflags $optval
1706     ;;
1707     --extra-libs=*) add_extralibs $optval
1708     ;;
1709     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1710     ;;
1711     --enable-debug=*) debuglevel="$optval"
1712     ;;
1713     --disable-everything)
1714     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1715     ;;
1716     --enable-*=*|--disable-*=*)
1717     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1718     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1719     eval list=\$$(toupper $thing)_LIST
1720     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1721     $action $(filter "$name" $list)
1722     ;;
1723     --enable-?*|--disable-?*)
1724     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1725     if is_in $option $COMPONENT_LIST; then
1726         test $action = disable && action=unset
1727         eval $action \$$(toupper ${option%s})_LIST
1728     elif is_in $option $CMDLINE_SELECT; then
1729         $action $option
1730     else
1731         die_unknown $opt
1732     fi
1733     ;;
1734     --list-*)
1735         NAME="${opt#--list-}"
1736         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1737         NAME=${NAME%s}
1738         eval show_list $NAME \$$(toupper $NAME)_LIST
1739     ;;
1740     --help|-h) show_help
1741     ;;
1742     *)
1743     optname="${opt%%=*}"
1744     optname="${optname#--}"
1745     optname=$(echo "$optname" | sed 's/-/_/g')
1746     if is_in $optname $CMDLINE_SET; then
1747         eval $optname='$optval'
1748     elif is_in $optname $CMDLINE_APPEND; then
1749         append $optname "$optval"
1750     else
1751          die_unknown $opt
1752     fi
1753     ;;
1754     esac
1755 done
1756
1757 disabled logging && logfile=/dev/null
1758
1759 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1760 set >> $logfile
1761
1762 test -n "$cross_prefix" && enable cross_compile
1763
1764 if enabled cross_compile; then
1765     test -n "$arch" && test -n "$target_os" ||
1766         die "Must specify target arch and OS when cross-compiling"
1767 fi
1768
1769 set_default arch target_os
1770
1771 ar_default="${cross_prefix}${ar_default}"
1772 cc_default="${cross_prefix}${cc_default}"
1773 nm_default="${cross_prefix}${nm_default}"
1774 ranlib="${cross_prefix}${ranlib}"
1775 strip_default="${cross_prefix}${strip_default}"
1776
1777 sysinclude_default="${sysroot}/usr/include"
1778
1779 set_default cc nm strip sysinclude
1780 enabled cross_compile || host_cc_default=$cc
1781 set_default host_cc
1782
1783 exesuf() {
1784     case $1 in
1785         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1786     esac
1787 }
1788
1789 EXESUF=$(exesuf $target_os)
1790 HOSTEXESUF=$(exesuf $host_os)
1791
1792 # set temporary file name
1793 : ${TMPDIR:=$TEMPDIR}
1794 : ${TMPDIR:=$TMP}
1795 : ${TMPDIR:=/tmp}
1796
1797 if ! check_cmd mktemp -u; then
1798     # simple replacement for missing mktemp
1799     # NOT SAFE FOR GENERAL USE
1800     mktemp(){
1801         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1802     }
1803 fi
1804
1805 tmpfile(){
1806     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1807         (set -C; exec > $tmp) 2>/dev/null ||
1808         die "Unable to create temporary file in $TMPDIR."
1809     append TMPFILES $tmp
1810     eval $1=$tmp
1811 }
1812
1813 trap 'rm -f -- $TMPFILES' EXIT
1814
1815 tmpfile TMPC  .c
1816 tmpfile TMPE  $EXESUF
1817 tmpfile TMPH  .h
1818 tmpfile TMPO  .o
1819 tmpfile TMPS  .S
1820 tmpfile TMPV  .ver
1821 tmpfile TMPSH .sh
1822 tmpfile TMPASM .asm
1823
1824 unset -f mktemp
1825
1826 chmod +x $TMPE
1827
1828 # make sure we can execute files in $TMPDIR
1829 cat > $TMPSH 2>> $logfile <<EOF
1830 #! /bin/sh
1831 EOF
1832 chmod +x $TMPSH >> $logfile 2>&1
1833 if ! $TMPSH >> $logfile 2>&1; then
1834     cat <<EOF
1835 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1836 variable to another directory and make sure that it is not mounted noexec.
1837 EOF
1838     die "Sanity test failed."
1839 fi
1840
1841 filter_cflags=echo
1842 filter_cppflags=echo
1843 filter_asflags=echo
1844
1845 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1846     cc_type=llvm_gcc
1847     cc_version=__VERSION__
1848     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1849     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1850     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1851     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1852     speed_cflags='-O3'
1853     size_cflags='-Os'
1854 elif $cc -v 2>&1 | grep -qi ^gcc; then
1855     cc_type=gcc
1856     cc_version=__VERSION__
1857     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1858     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1859     if ! $cc -dumpversion | grep -q '^2\.'; then
1860         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1861         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1862     fi
1863     speed_cflags='-O3'
1864     size_cflags='-Os'
1865 elif $cc --version 2>/dev/null | grep -q Intel; then
1866     cc_type=icc
1867     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1868     cc_ident=$($cc --version | head -n1)
1869     icc_version=$($cc -dumpversion)
1870     CC_DEPFLAGS='-MMD'
1871     AS_DEPFLAGS='-MMD'
1872     speed_cflags='-O3'
1873     size_cflags='-Os'
1874     noopt_cflags='-O1'
1875 elif $cc -v 2>&1 | grep -q xlc; then
1876     cc_type=xlc
1877     cc_version="AV_STRINGIFY(__IBMC__)"
1878     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1879     speed_cflags='-O5'
1880     size_cflags='-O5 -qcompact'
1881 elif $cc -V 2>/dev/null | grep -q Compaq; then
1882     cc_type=ccc
1883     cc_version="AV_STRINGIFY(__DECC_VER)"
1884     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1885     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1886     debuglevel=3
1887     add_ldflags -Wl,-z,now # calls to libots crash without this
1888     speed_cflags='-fast'
1889     size_cflags='-O1'
1890 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1891     test -d "$sysroot" || die "No valid sysroot specified."
1892     cc_type=armcc
1893     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1894     cc_ident=$($cc --vsn | head -n1)
1895     armcc_conf="$PWD/armcc.conf"
1896     $cc --arm_linux_configure                 \
1897         --arm_linux_config_file="$armcc_conf" \
1898         --configure_sysroot="$sysroot"        \
1899         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1900         die "Error creating armcc configuration file."
1901     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1902     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1903     as_default="${cross_prefix}gcc"
1904     CC_DEPFLAGS='-MMD'
1905     AS_DEPFLAGS='-MMD'
1906     speed_cflags='-O3'
1907     size_cflags='-Os'
1908 elif $cc -version 2>/dev/null | grep -q TMS470; then
1909     cc_type=tms470
1910     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1911     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1912     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1913     CC_O='-fr=$(@D)'
1914     as_default="${cross_prefix}gcc"
1915     ld_default="${cross_prefix}gcc"
1916     TMPO=$(basename $TMPC .c).o
1917     append TMPFILES $TMPO
1918     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1919     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1920     AS_DEPFLAGS='-MMD'
1921     speed_cflags='-O3 -mf=5'
1922     size_cflags='-O3 -mf=2'
1923     filter_cflags=tms470_flags
1924     tms470_flags(){
1925         for flag; do
1926             case $flag in
1927                 -march=*|-mcpu=*)
1928                     case "${flag#*=}" in
1929                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1930                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1931                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1932                         armv6*|arm11*)          echo -mv=6   ;;
1933                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1934                                                 echo -mv=5e  ;;
1935                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1936                     esac
1937                     ;;
1938                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1939                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1940                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1941                 -msoft-float)   echo --float_support=vfplib       ;;
1942                 -O[0-3]|-mf=*)  echo $flag                        ;;
1943                 -g)             echo -g -mn                       ;;
1944                 -pds=*)         echo $flag                        ;;
1945             esac
1946         done
1947     }
1948 elif $cc -v 2>&1 | grep -q clang; then
1949     cc_type=clang
1950     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1951         cc_version=__clang_version__ || cc_version=__VERSION__
1952     cc_ident=$($cc --version | head -n1)
1953     CC_DEPFLAGS='-MMD'
1954     AS_DEPFLAGS='-MMD'
1955     speed_cflags='-O3'
1956     size_cflags='-Os'
1957 elif $cc -V 2>&1 | grep -q Sun; then
1958     cc_type=suncc
1959     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1960     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1961     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1962     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1963     speed_cflags='-O5'
1964     size_cflags='-O5 -xspace'
1965     filter_cflags=suncc_flags
1966     suncc_flags(){
1967         for flag; do
1968             case $flag in
1969                 -march=*|-mcpu=*)
1970                     case "${flag#*=}" in
1971                         native)                   echo -xtarget=native       ;;
1972                         v9|niagara)               echo -xarch=sparc          ;;
1973                         ultrasparc)               echo -xarch=sparcvis       ;;
1974                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1975                         i586|pentium)             echo -xchip=pentium        ;;
1976                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1977                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1978                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1979                         pentium4*)          echo -xtarget=pentium4           ;;
1980                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1981                         *-sse3)             echo -xarch=sse3                 ;;
1982                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1983                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1984                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1985                         k8|opteron|athlon64|athlon-fx)
1986                                                   echo -xarch=sse2a          ;;
1987                         athlon*)                  echo -xarch=pentium_proa   ;;
1988                     esac
1989                     ;;
1990                 -std=c99)             echo -xc99              ;;
1991                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1992                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1993                 -W*,*)                echo $flag              ;;
1994                 -f*-*|-W*)                                    ;;
1995                 *)                    echo $flag              ;;
1996             esac
1997         done
1998     }
1999 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2000     cc_type=pathscale
2001     cc_version=__PATHSCALE__
2002     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2003     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2004     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2005     speed_cflags='-O2'
2006     size_cflags='-Os'
2007 elif $cc -v 2>&1 | grep -q Open64; then
2008     cc_type=open64
2009     cc_version=__OPEN64__
2010     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2011     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2012     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2013     speed_cflags='-O2'
2014     size_cflags='-Os'
2015 fi
2016
2017 test -n "$cc_type" && enable $cc_type ||
2018     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2019
2020 : ${as_default:=$cc}
2021 : ${dep_cc_default:=$cc}
2022 : ${ld_default:=$cc}
2023 set_default ar as dep_cc ld
2024
2025 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2026 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2027
2028 add_cflags $extra_cflags
2029 add_asflags $extra_cflags
2030
2031 if test -n "$sysroot"; then
2032     case "$cc_type" in
2033         gcc|llvm_gcc)
2034             add_cppflags --sysroot="$sysroot"
2035             add_ldflags --sysroot="$sysroot"
2036         ;;
2037         tms470)
2038             add_cppflags -I"$sysinclude"
2039             add_ldflags  --sysroot="$sysroot"
2040         ;;
2041         clang)
2042             add_cppflags -isysroot "$sysroot"
2043             add_ldflags -isysroot "$sysroot"
2044         ;;
2045     esac
2046 fi
2047
2048 if test "$cpu" = host; then
2049     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2050
2051     case "$cc_type" in
2052         gcc|llvm_gcc)
2053             check_native(){
2054                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2055                 sed -n "/$1=/{
2056                             s/.*$1=\\([^ ]*\\).*/\\1/
2057                             p
2058                             q
2059                         }" $TMPE
2060             }
2061             cpu=$(check_native -march || check_native -mcpu)
2062         ;;
2063     esac
2064
2065     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2066 fi
2067
2068 # Deal with common $arch aliases
2069 case "$arch" in
2070     arm*)
2071         arch="arm"
2072     ;;
2073     mips|mipsel|IP*)
2074         arch="mips"
2075     ;;
2076     mips64*)
2077         arch="mips"
2078         subarch="mips64"
2079     ;;
2080     parisc|hppa)
2081         arch="parisc"
2082     ;;
2083     parisc64|hppa64)
2084         arch="parisc"
2085         subarch="parisc64"
2086     ;;
2087     "Power Macintosh"|ppc|powerpc)
2088         arch="ppc"
2089     ;;
2090     ppc64|powerpc64)
2091         arch="ppc"
2092         subarch="ppc64"
2093     ;;
2094     s390|s390x)
2095         arch="s390"
2096     ;;
2097     sh4|sh)
2098         arch="sh4"
2099     ;;
2100     sun4u|sparc64)
2101         arch="sparc"
2102         subarch="sparc64"
2103     ;;
2104     i[3-6]86|i86pc|BePC|x86_64|amd64)
2105         arch="x86"
2106     ;;
2107 esac
2108
2109 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2110 enable $arch
2111
2112 # Add processor-specific flags
2113 if test "$cpu" = generic; then
2114     : do nothing
2115 elif enabled ppc; then
2116
2117     case $(tolower $cpu) in
2118         601|ppc601|powerpc601)
2119             cpuflags="-mcpu=601"
2120             disable altivec
2121         ;;
2122         603*|ppc603*|powerpc603*)
2123             cpuflags="-mcpu=603"
2124             disable altivec
2125         ;;
2126         604*|ppc604*|powerpc604*)
2127             cpuflags="-mcpu=604"
2128             disable altivec
2129         ;;
2130         g3|75*|ppc75*|powerpc75*)
2131             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2132             disable altivec
2133         ;;
2134         g4|745*|ppc745*|powerpc745*)
2135             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2136         ;;
2137         74*|ppc74*|powerpc74*)
2138             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2139         ;;
2140         g5|970|ppc970|powerpc970|power4*)
2141             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2142         ;;
2143         cell)
2144             cpuflags="-mcpu=cell"
2145             enable ldbrx
2146         ;;
2147         e500v2)
2148             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2149             disable altivec
2150         ;;
2151         e500)
2152             cpuflags="-mcpu=8540 -mhard-float"
2153             disable altivec
2154         ;;
2155     esac
2156
2157 elif enabled x86; then
2158
2159     case $cpu in
2160         i[345]86|pentium)
2161             cpuflags="-march=$cpu"
2162             disable mmx
2163         ;;
2164         # targets that do NOT support conditional mov (cmov)
2165         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2166             cpuflags="-march=$cpu"
2167             disable cmov
2168         ;;
2169         # targets that do support conditional mov (cmov)
2170         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2171             cpuflags="-march=$cpu"
2172             enable cmov
2173             enable fast_cmov
2174         ;;
2175         # targets that do support conditional mov but on which it's slow
2176         pentium4|pentium4m|prescott|nocona)
2177             cpuflags="-march=$cpu"
2178             enable cmov
2179             disable fast_cmov
2180         ;;
2181     esac
2182
2183 elif enabled sparc; then
2184
2185     case $cpu in
2186         niagara)
2187             cpuflags="-mcpu=$cpu"
2188             disable vis
2189         ;;
2190         sparc64)
2191             cpuflags="-mcpu=v9"
2192         ;;
2193     esac
2194
2195 elif enabled arm; then
2196
2197     case $cpu in
2198         armv*)
2199             cpuflags="-march=$cpu"
2200             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2201         ;;
2202         *)
2203             cpuflags="-mcpu=$cpu"
2204             case $cpu in
2205                 cortex-a*)                               subarch=armv7a  ;;
2206                 cortex-r*)                               subarch=armv7r  ;;
2207                 cortex-m*)                               subarch=armv7m  ;;
2208                 arm11*)                                  subarch=armv6   ;;
2209                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2210                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2211             esac
2212         ;;
2213     esac
2214
2215 elif enabled alpha; then
2216
2217     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2218
2219 elif enabled bfin; then
2220
2221     cpuflags="-mcpu=$cpu"
2222
2223 elif enabled mips; then
2224
2225     cpuflags="-march=$cpu"
2226
2227 elif enabled avr32; then
2228
2229     case $cpu in
2230         ap7[02]0[0-2])
2231             subarch="avr32_ap"
2232             cpuflags="-mpart=$cpu"
2233         ;;
2234         ap)
2235             subarch="avr32_ap"
2236             cpuflags="-march=$cpu"
2237         ;;
2238         uc3[ab]*)
2239             subarch="avr32_uc"
2240             cpuflags="-mcpu=$cpu"
2241         ;;
2242         uc)
2243             subarch="avr32_uc"
2244             cpuflags="-march=$cpu"
2245         ;;
2246     esac
2247
2248 fi
2249
2250 add_cflags $cpuflags
2251 add_asflags $cpuflags
2252
2253 # compiler sanity check
2254 check_exec <<EOF
2255 int main(void){ return 0; }
2256 EOF
2257 if test "$?" != 0; then
2258     echo "$cc is unable to create an executable file."
2259     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2260         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2261         echo "Only do this if you know what cross compiling means."
2262     fi
2263     die "C compiler test failed."
2264 fi
2265
2266 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2267 check_cflags -std=c99
2268 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2269 #include <stdlib.h>
2270 EOF
2271 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2272 #include <stdlib.h>
2273 EOF
2274
2275 check_host_cflags -std=c99
2276
2277 case "$arch" in
2278     alpha|ia64|mips|parisc|sparc)
2279         spic=$shared
2280     ;;
2281     x86)
2282         subarch="x86_32"
2283         check_cc <<EOF && subarch="x86_64"
2284         int test[(int)sizeof(char*) - 7];
2285 EOF
2286         if test "$subarch" = "x86_64"; then
2287             spic=$shared
2288         fi
2289     ;;
2290 esac
2291
2292 enable $subarch
2293 enabled spic && enable pic
2294
2295 # OS specific
2296 case $target_os in
2297     haiku)
2298         prefix_default="/boot/common"
2299         network_extralibs="-lnetwork"
2300         ;;
2301     sunos)
2302         FFSERVERLDFLAGS=""
2303         SHFLAGS='-shared -Wl,-h,$$(@F)'
2304         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2305         network_extralibs="-lsocket -lnsl"
2306         add_cppflags -D__EXTENSIONS__
2307         nm_opts='-P -g'
2308         ;;
2309     netbsd)
2310         oss_indev_extralibs="-lossaudio"
2311         oss_outdev_extralibs="-lossaudio"
2312         add_cppflags -D_XOPEN_SOURCE=600
2313         ;;
2314     openbsd)
2315         enable malloc_aligned
2316         # On OpenBSD 4.5. the compiler does not use PIC unless
2317         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2318         # however the generated executable will not do anything
2319         # (simply quits with exit-code 1, no crash, no output).
2320         # Thus explicitly enable PIC here.
2321         enable pic
2322         SHFLAGS='-shared'
2323         oss_indev_extralibs="-lossaudio"
2324         oss_outdev_extralibs="-lossaudio"
2325         ;;
2326     freebsd|dragonfly)
2327         enable malloc_aligned
2328         ;;
2329     bsd/os)
2330         add_extralibs -lpoll -lgnugetopt
2331         strip="strip -d"
2332         ;;
2333     darwin)
2334         enable malloc_aligned
2335         gas="gas-preprocessor.pl $cc"
2336         enabled ppc && add_asflags -force_cpusubtype_ALL
2337         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2338         strip="${strip} -x"
2339         add_ldflags -Wl,-dynamic,-search_paths_first
2340         SLIBSUF=".dylib"
2341         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2342         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2343         FFSERVERLDFLAGS=-Wl,-bind_at_load
2344         objformat="macho"
2345         enabled x86_64 && objformat="macho64"
2346         enabled_any pic shared ||
2347             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2348         ;;
2349     mingw32*)
2350         if test $target_os = "mingw32ce"; then
2351             disable network
2352         else
2353             target_os=mingw32
2354         fi
2355         LIBTARGET=i386
2356         if enabled x86_64; then
2357             enable malloc_aligned
2358             LIBTARGET=x64
2359         elif enabled arm; then
2360             LIBTARGET=arm
2361         fi
2362         shlibdir_default="$bindir_default"
2363         disable ffserver
2364         SLIBPREF=""
2365         SLIBSUF=".dll"
2366         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2367         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2368         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2369         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2370             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2371             install -d "$(LIBDIR)"; \
2372             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2373         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2374         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'
2375         objformat="win32"
2376         enable dos_paths
2377         check_cflags -fno-common
2378         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2379                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2380                 die "ERROR: MinGW runtime version must be >= 3.15."
2381         ;;
2382     cygwin*)
2383         target_os=cygwin
2384         shlibdir_default="$bindir_default"
2385         SLIBPREF="cyg"
2386         SLIBSUF=".dll"
2387         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2388         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2389         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2390         objformat="win32"
2391         enable dos_paths
2392         check_cflags -fno-common
2393         ;;
2394     *-dos|freedos|opendos)
2395         disable ffplay ffserver
2396         disable $INDEV_LIST $OUTDEV_LIST
2397         network_extralibs="-lsocket"
2398         objformat="coff"
2399         enable dos_paths
2400         ;;
2401     linux)
2402         enable dv1394
2403         ;;
2404     irix*)
2405         target_os=irix
2406         ranlib="echo ignoring ranlib"
2407         ;;
2408     os/2*)
2409         strip="lxlite"
2410         ln_s="cp -f"
2411         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2412         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2413         FFSERVERLDFLAGS=""
2414         LIBSUF="_s.a"
2415         SLIBPREF=""
2416         SLIBSUF=".dll"
2417         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2418         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2419         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2420           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2421           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2422           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2423           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2424           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2425         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2426           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2427         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2428         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2429         enable dos_paths
2430         ;;
2431     gnu/kfreebsd)
2432         ;;
2433     gnu)
2434         ;;
2435     none)
2436         ;;
2437     *)
2438         die "Unknown OS '$target_os'."
2439         ;;
2440 esac
2441
2442 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2443
2444 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2445
2446 set_default $PATHS_LIST
2447
2448 # we need to build at least one lib type
2449 if ! enabled_any static shared; then
2450     cat <<EOF
2451 At least one library type must be built.
2452 Specify --enable-static to build the static libraries or --enable-shared to
2453 build the shared libraries as well. To only build the shared libraries specify
2454 --disable-static in addition to --enable-shared.
2455 EOF
2456     exit 1;
2457 fi
2458
2459 disabled static && LIBNAME=""
2460
2461 die_license_disabled() {
2462     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2463 }
2464
2465 die_license_disabled gpl libx264
2466 die_license_disabled gpl libxavs
2467 die_license_disabled gpl libxvid
2468 die_license_disabled gpl postproc
2469 die_license_disabled gpl x11grab
2470
2471 die_license_disabled nonfree libfaac
2472
2473 die_license_disabled version3 libopencore_amrnb
2474 die_license_disabled version3 libopencore_amrwb
2475
2476 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2477
2478 check_deps $ARCH_EXT_LIST
2479
2480 disabled optimizations || check_cflags -fomit-frame-pointer
2481
2482 enable_pic() {
2483     enable pic
2484     add_cppflags -DPIC
2485     add_cflags   -fPIC
2486     add_asflags  -fPIC
2487 }
2488
2489 enabled pic && enable_pic
2490
2491 check_cc <<EOF || die "Symbol mangling check failed."
2492 int ff_extern;
2493 EOF
2494 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2495 extern_prefix=${sym%%ff_extern*}
2496
2497 check_cc <<EOF && enable inline_asm
2498 void foo(void) { __asm__ volatile ("" ::); }
2499 EOF
2500
2501 _restrict=
2502 for restrict_keyword in restrict __restrict__ __restrict; do
2503     check_cc <<EOF && _restrict=$restrict_keyword && break
2504 void foo(char * $restrict_keyword p);
2505 EOF
2506 done
2507
2508 check_cc <<EOF && enable attribute_packed
2509 struct { int x; } __attribute__((packed)) x;
2510 EOF
2511
2512 check_cc <<EOF && enable attribute_may_alias
2513 union { int x; } __attribute__((may_alias)) x;
2514 EOF
2515
2516 check_cc <<EOF || die "endian test failed"
2517 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2518 EOF
2519 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2520
2521 if enabled alpha; then
2522
2523     check_cflags -mieee
2524
2525 elif enabled arm; then
2526
2527     check_cflags -marm
2528     nogas=die
2529
2530     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2531         enable vfp_args
2532     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2533         case "${cross_prefix:-$cc}" in
2534             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2535             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2536 __asm__ (".eabi_attribute 28, 1");
2537 int main(void) { return 0; }
2538 EOF
2539         esac
2540         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2541     fi
2542
2543     # We have to check if pld is a nop and disable it.
2544     check_asm pld '"pld [r0]"'
2545
2546     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2547     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2548     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2549     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2550     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2551     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2552
2553     enabled_all armv6t2 shared !pic && enable_pic
2554
2555 elif enabled mips; then
2556
2557     check_asm loongson '"dmult.g $1, $2, $3"'
2558     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2559
2560 elif enabled ppc; then
2561
2562     enable local_aligned_8 local_aligned_16
2563
2564     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2565     check_asm ibm_asm   '"add 0, 0, 0"'
2566     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2567     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2568
2569     # AltiVec flags: The FSF version of GCC differs from the Apple version
2570     if enabled altivec; then
2571         nogas=warn
2572         check_cflags -maltivec -mabi=altivec &&
2573         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2574         check_cflags -faltivec
2575
2576         # check if our compiler supports Motorola AltiVec C API
2577         check_cc <<EOF || disable altivec
2578 $inc_altivec_h
2579 int main(void) {
2580     vector signed int v1, v2, v3;
2581     v1 = vec_add(v2,v3);
2582     return 0;
2583 }
2584 EOF
2585
2586         # check if our compiler supports braces for vector declarations
2587         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2588 $inc_altivec_h
2589 int main (void) { (vector int) {1}; return 0; }
2590 EOF
2591     fi
2592
2593 elif enabled sparc; then
2594
2595     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2596         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2597
2598 elif enabled x86; then
2599
2600     enable local_aligned_8 local_aligned_16
2601
2602     # check whether EBP is available on x86
2603     # As 'i' is stored on the stack, this program will crash
2604     # if the base pointer is used to access it because the
2605     # base pointer is cleared in the inline assembly code.
2606     check_exec_crash <<EOF && enable ebp_available
2607     volatile int i=0;
2608     __asm__ volatile (
2609         "xorl %%ebp, %%ebp"
2610     ::: "%ebp");
2611     return i;
2612 EOF
2613
2614     # check whether EBX is available on x86
2615     check_asm ebx_available '""::"b"(0)' &&
2616         check_asm ebx_available '"":::"%ebx"'
2617
2618     # check whether xmm clobbers are supported
2619     check_asm xmm_clobbers '"":::"%xmm0"'
2620
2621     # check whether more than 10 operands are supported
2622     check_cc <<EOF && enable ten_operands
2623 int main(void) {
2624     int x=0;
2625     __asm__ volatile(
2626         ""
2627         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2628     );
2629     return 0;
2630 }
2631 EOF
2632
2633     # check whether binutils is new enough to compile SSSE3/MMX2
2634     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2635     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2636
2637     check_asm bswap '"bswap %%eax" ::: "%eax"'
2638
2639     if ! disabled_any asm mmx yasm; then
2640         if check_cmd $yasmexe --version; then
2641             enabled x86_64 && yasm_extra="-m amd64"
2642             yasm_debug="-g dwarf2"
2643         elif check_cmd nasm -v; then
2644             yasmexe=nasm
2645             yasm_debug="-g -F dwarf"
2646             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2647         fi
2648
2649         YASMFLAGS="-f $objformat $yasm_extra"
2650         enabled pic               && append YASMFLAGS "-DPIC"
2651         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2652         case "$objformat" in
2653             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2654         esac
2655
2656         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2657             die "yasm not found, use --disable-yasm for a crippled build"
2658     fi
2659
2660     case "$cpu" in
2661         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2662             disable fast_clz
2663         ;;
2664     esac
2665
2666 fi
2667
2668 if enabled asm; then
2669     as=${gas:=$as}
2670     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2671         $nogas "GNU assembler not found, install gas-preprocessor"
2672 fi
2673
2674 if check_func dlopen; then
2675     ldl=
2676 elif check_func dlopen -ldl; then
2677     ldl=-ldl
2678 fi
2679
2680 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2681 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2682
2683 check_func  fcntl
2684 check_func  fork
2685 check_func  getaddrinfo $network_extralibs
2686 check_func  gethrtime
2687 check_func  getrusage
2688 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2689 check_func  inet_aton $network_extralibs
2690 check_func  isatty
2691 check_func  ${malloc_prefix}memalign            && enable memalign
2692 check_func  mkstemp
2693 check_func  mmap
2694 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2695 check_func  setrlimit
2696 check_func  strerror_r
2697 check_func  strtok_r
2698 check_func_headers io.h setmode
2699 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2700 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2701 check_func_headers windows.h GetProcessTimes
2702 check_func_headers windows.h MapViewOfFile
2703 check_func_headers windows.h VirtualAlloc
2704
2705 check_header conio.h
2706 check_header dlfcn.h
2707 check_header dxva2api.h
2708 check_header malloc.h
2709 check_header poll.h
2710 check_header sys/mman.h
2711 check_header sys/resource.h
2712 check_header sys/select.h
2713 check_header termios.h
2714 check_header vdpau/vdpau.h
2715 check_header vdpau/vdpau_x11.h
2716 check_header X11/extensions/XvMClib.h
2717
2718 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2719
2720 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2721      enabled_any $need_memalign ; then
2722     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2723 fi
2724
2725 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2726 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2727
2728 # check for some common methods of building with pthread support
2729 # do this before the optional library checks as some of them require pthreads
2730 if ! disabled pthreads && ! enabled w32threads; then
2731     enable pthreads
2732     if check_func pthread_create; then
2733         :
2734     elif check_func pthread_create -pthread; then
2735         add_cflags -pthread
2736         add_extralibs -pthread
2737     elif check_func pthread_create -pthreads; then
2738         add_cflags -pthreads
2739         add_extralibs -pthreads
2740     elif check_func pthread_create -lpthreadGC2; then
2741         add_extralibs -lpthreadGC2
2742     elif ! check_lib pthread.h pthread_create -lpthread; then
2743         disable pthreads
2744     fi
2745 fi
2746
2747 for thread in $THREADS_LIST; do
2748     if enabled $thread; then
2749         test -n "$thread_type" &&
2750             die "ERROR: Only one thread type must be selected." ||
2751             thread_type="$thread"
2752     fi
2753 done
2754
2755 check_lib math.h sin -lm
2756 disabled vaapi || check_lib va/va.h vaInitialize -lva
2757
2758 check_mathfunc exp2
2759 check_mathfunc exp2f
2760 check_mathfunc llrint
2761 check_mathfunc llrintf
2762 check_mathfunc log2
2763 check_mathfunc log2f
2764 check_mathfunc lrint
2765 check_mathfunc lrintf
2766 check_mathfunc round
2767 check_mathfunc roundf
2768 check_mathfunc truncf
2769
2770 # these are off by default, so fail if requested and not available
2771 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2772 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2773 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2774                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2775                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2776 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2777 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2778 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2779 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2780 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2781 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2782 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2783                         die "ERROR: libopencv not found"; }
2784 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2785 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2786                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2787 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2788                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2789 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2790 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2791 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2792 enabled libvpx     && {
2793     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2794                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2795     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2796                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2797 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2798                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2799                         die "ERROR: libx264 version must be >= 0.99."; }
2800 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2801 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2802 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2803
2804 # libdc1394 check
2805 if enabled libdc1394; then
2806     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2807         enable libdc1394_2; } ||
2808     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2809         enable libdc1394_1; } ||
2810     die "ERROR: No version of libdc1394 found "
2811 fi
2812
2813 SDL_CONFIG="${cross_prefix}sdl-config"
2814 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2815     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2816     sdl_libs=$("${SDL_CONFIG}" --libs)
2817     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2818     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2819     enable sdl &&
2820     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2821 fi
2822
2823 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2824
2825 if enabled network; then
2826     check_type "sys/types.h sys/socket.h" socklen_t
2827     check_type netdb.h "struct addrinfo"
2828     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2829     check_type netinet/in.h "struct sockaddr_in6"
2830     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2831     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2832     # Prefer arpa/inet.h over winsock2
2833     if check_header arpa/inet.h ; then
2834         check_func closesocket
2835     elif check_header winsock2.h ; then
2836         check_func_headers winsock2.h closesocket -lws2 && \
2837             network_extralibs="-lws2" || \
2838         { check_func_headers winsock2.h closesocket -lws2_32 && \
2839             network_extralibs="-lws2_32"; }
2840         check_type ws2tcpip.h socklen_t
2841         check_type ws2tcpip.h "struct addrinfo"
2842         check_type ws2tcpip.h "struct ipv6_mreq"
2843         check_type ws2tcpip.h "struct sockaddr_in6"
2844         check_type ws2tcpip.h "struct sockaddr_storage"
2845         check_struct winsock2.h "struct sockaddr" sa_len
2846     else
2847         disable network
2848     fi
2849 fi
2850
2851 check_header linux/videodev.h
2852 check_header linux/videodev2.h
2853 check_header sys/videoio.h
2854
2855 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2856 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2857 # w32api 3.12 had it defined wrong
2858 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2859
2860 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2861 { check_header dev/bktr/ioctl_meteor.h &&
2862   check_header dev/bktr/ioctl_bt848.h; } ||
2863 { check_header machine/ioctl_meteor.h &&
2864   check_header machine/ioctl_bt848.h; } ||
2865 { check_header dev/video/meteor/ioctl_meteor.h &&
2866   check_header dev/video/bktr/ioctl_bt848.h; } ||
2867 check_header dev/ic/bt8xx.h
2868
2869 check_header sys/soundcard.h
2870 check_header soundcard.h
2871
2872 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2873
2874 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2875
2876 enabled x11grab                         &&
2877 check_header X11/Xlib.h                 &&
2878 check_header X11/extensions/XShm.h      &&
2879 check_header X11/extensions/Xfixes.h    &&
2880 check_func XOpenDisplay -lX11           &&
2881 check_func XShmCreateImage -lX11 -lXext &&
2882 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2883
2884 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2885 check_cpp_condition \
2886     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2887     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2888       disable vdpau; }
2889 fi
2890
2891 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2892
2893 # add some useful compiler flags if supported
2894 check_cflags -Wdeclaration-after-statement
2895 check_cflags -Wall
2896 check_cflags -Wno-parentheses
2897 check_cflags -Wno-switch
2898 check_cflags -Wdisabled-optimization
2899 check_cflags -Wpointer-arith
2900 check_cflags -Wredundant-decls
2901 check_cflags -Wno-pointer-sign
2902 check_cflags -Wcast-qual
2903 check_cflags -Wwrite-strings
2904 check_cflags -Wtype-limits
2905 check_cflags -Wundef
2906 check_cflags -Wmissing-prototypes
2907 enabled extra_warnings && check_cflags -Winline
2908
2909 # add some linker flags
2910 check_ldflags -Wl,--warn-common
2911 check_ldflags -Wl,--as-needed
2912 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'
2913 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2914
2915 echo "X{};" > $TMPV
2916 if test_ldflags -Wl,--version-script,$TMPV; then
2917     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2918     check_cc <<EOF && enable symver_asm_label
2919 void ff_foo(void) __asm__ ("av_foo@VERSION");
2920 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2921 EOF
2922     check_cc <<EOF && enable symver_gnu_asm
2923 __asm__(".symver ff_foo,av_foo@VERSION");
2924 void ff_foo(void) {}
2925 EOF
2926 fi
2927
2928 if enabled small; then
2929     add_cflags $size_cflags
2930     optimizations="small"
2931 elif enabled optimizations; then
2932     add_cflags $speed_cflags
2933 else
2934     add_cflags $noopt_cflags
2935 fi
2936 check_cflags -fno-math-errno
2937 check_cflags -fno-signed-zeros
2938
2939 if enabled icc; then
2940     # Just warnings, no remarks
2941     check_cflags -w1
2942     # -wd: Disable following warnings
2943     # 144, 167, 556: -Wno-pointer-sign
2944     # 10006: ignoring unknown option -fno-signed-zeros
2945     # 10148: ignoring unknown option -Wno-parentheses
2946     # 10156: ignoring option '-W'; no argument required
2947     check_cflags -wd144,167,556,10006,10148,10156
2948     # 11030: Warning unknown option --as-needed
2949     # 10156: ignoring option '-export'; no argument required
2950     check_ldflags -wd10156,11030
2951     # Allow to compile with optimizations
2952     check_ldflags -march=$cpu
2953     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2954     enable ebp_available
2955     if enabled x86_32; then
2956         test ${icc_version%%.*} -ge 11 && \
2957             check_cflags -falign-stack=maintain-16-byte || \
2958             disable aligned_stack
2959     fi
2960 elif enabled ccc; then
2961     # disable some annoying warnings
2962     add_cflags -msg_disable cvtu32to64
2963     add_cflags -msg_disable embedcomment
2964     add_cflags -msg_disable needconstext
2965     add_cflags -msg_disable nomainieee
2966     add_cflags -msg_disable ptrmismatch1
2967     add_cflags -msg_disable unreachcode
2968 elif enabled gcc; then
2969     check_cflags -fno-tree-vectorize
2970     check_cflags -Werror=implicit-function-declaration
2971     check_cflags -Werror=missing-prototypes
2972 elif enabled llvm_gcc; then
2973     check_cflags -mllvm -stack-alignment=16
2974 elif enabled clang; then
2975     check_cflags -mllvm -stack-alignment=16
2976     check_cflags -Qunused-arguments
2977 elif enabled armcc; then
2978     # 2523: use of inline assembler is deprecated
2979     add_cflags -W${armcc_opt},--diag_suppress=2523
2980     add_cflags -W${armcc_opt},--diag_suppress=1207
2981     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
2982     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
2983 elif enabled tms470; then
2984     add_cflags -pds=824 -pds=837
2985 fi
2986
2987 enabled_any $THREADS_LIST      && enable threads
2988
2989 check_deps $CONFIG_LIST       \
2990            $CONFIG_EXTRA      \
2991            $HAVE_LIST         \
2992            $DECODER_LIST      \
2993            $ENCODER_LIST      \
2994            $HWACCEL_LIST      \
2995            $PARSER_LIST       \
2996            $BSF_LIST          \
2997            $DEMUXER_LIST      \
2998            $MUXER_LIST        \
2999            $FILTER_LIST       \
3000            $INDEV_LIST        \
3001            $OUTDEV_LIST       \
3002            $PROTOCOL_LIST     \
3003            $ACODEC_TESTS      \
3004            $VCODEC_TESTS      \
3005            $LAVF_TESTS        \
3006            $LAVFI_TESTS       \
3007            $SEEK_TESTS        \
3008
3009 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3010
3011 echo "install prefix            $prefix"
3012 echo "source path               $source_path"
3013 echo "C compiler                $cc"
3014 echo "ARCH                      $arch ($cpu)"
3015 if test "$build_suffix" != ""; then
3016     echo "build suffix              $build_suffix"
3017 fi
3018 if test "$extra_version" != ""; then
3019     echo "version string suffix     $extra_version"
3020 fi
3021 echo "big-endian                ${bigendian-no}"
3022 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3023 if enabled x86; then
3024     echo "yasm                      ${yasm-no}"
3025     echo "MMX enabled               ${mmx-no}"
3026     echo "MMX2 enabled              ${mmx2-no}"
3027     echo "3DNow! enabled            ${amd3dnow-no}"
3028     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3029     echo "SSE enabled               ${sse-no}"
3030     echo "SSSE3 enabled             ${ssse3-no}"
3031     echo "CMOV enabled              ${cmov-no}"
3032     echo "CMOV is fast              ${fast_cmov-no}"
3033     echo "EBX available             ${ebx_available-no}"
3034     echo "EBP available             ${ebp_available-no}"
3035     echo "10 operands supported     ${ten_operands-no}"
3036 fi
3037 if enabled arm; then
3038     echo "ARMv5TE enabled           ${armv5te-no}"
3039     echo "ARMv6 enabled             ${armv6-no}"
3040     echo "ARMv6T2 enabled           ${armv6t2-no}"
3041     echo "ARM VFP enabled           ${armvfp-no}"
3042     echo "IWMMXT enabled            ${iwmmxt-no}"
3043     echo "NEON enabled              ${neon-no}"
3044 fi
3045 if enabled mips; then
3046     echo "MMI enabled               ${mmi-no}"
3047 fi
3048 if enabled ppc; then
3049     echo "AltiVec enabled           ${altivec-no}"
3050     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3051     echo "dcbzl available           ${dcbzl-no}"
3052 fi
3053 if enabled sparc; then
3054     echo "VIS enabled               ${vis-no}"
3055 fi
3056 echo "debug symbols             ${debug-no}"
3057 echo "strip symbols             ${stripping-no}"
3058 echo "optimizations             ${optimizations-no}"
3059 echo "static                    ${static-no}"
3060 echo "shared                    ${shared-no}"
3061 echo "postprocessing support    ${postproc-no}"
3062 echo "new filter support        ${avfilter-no}"
3063 echo "network support           ${network-no}"
3064 echo "threading support         ${thread_type-no}"
3065 echo "SDL support               ${sdl-no}"
3066 echo "Sun medialib support      ${mlib-no}"
3067 echo "AVISynth enabled          ${avisynth-no}"
3068 echo "frei0r enabled            ${frei0r-no}"
3069 echo "libdc1394 support         ${libdc1394-no}"
3070 echo "libdirac enabled          ${libdirac-no}"
3071 echo "libfaac enabled           ${libfaac-no}"
3072 echo "libgsm enabled            ${libgsm-no}"
3073 echo "libmp3lame enabled        ${libmp3lame-no}"
3074 echo "libnut enabled            ${libnut-no}"
3075 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3076 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3077 echo "libopencv support         ${libopencv-no}"
3078 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3079 echo "librtmp enabled           ${librtmp-no}"
3080 echo "libschroedinger enabled   ${libschroedinger-no}"
3081 echo "libspeex enabled          ${libspeex-no}"
3082 echo "libtheora enabled         ${libtheora-no}"
3083 echo "libvorbis enabled         ${libvorbis-no}"
3084 echo "libvpx enabled            ${libvpx-no}"
3085 echo "libx264 enabled           ${libx264-no}"
3086 echo "libxavs enabled           ${libxavs-no}"
3087 echo "libxvid enabled           ${libxvid-no}"
3088 echo "zlib enabled              ${zlib-no}"
3089 echo "bzlib enabled             ${bzlib-no}"
3090 echo
3091
3092 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3093     echo "Enabled ${type}s:"
3094     eval list=\$$(toupper $type)_LIST
3095     print_enabled '_*' $list | sort | pr -3 -t
3096     echo
3097 done
3098
3099 license="LGPL version 2.1 or later"
3100 if enabled nonfree; then
3101     license="nonfree and unredistributable"
3102 elif enabled gplv3; then
3103     license="GPL version 3 or later"
3104 elif enabled lgplv3; then
3105     license="LGPL version 3 or later"
3106 elif enabled gpl; then
3107     license="GPL version 2 or later"
3108 fi
3109
3110 echo "License: $license"
3111
3112 echo "Creating config.mak and config.h..."
3113
3114 # build tree in object directory if source path is different from current one
3115 if enabled source_path_used; then
3116     DIRS="
3117         doc
3118         libavcodec
3119         libavcodec/$arch
3120         libavcore
3121         libavdevice
3122         libavfilter
3123         libavfilter/$arch
3124         libavfilter/libmpcodecs
3125         libavfilter/libmpcodecs/libvo
3126         libavformat
3127         libavutil
3128         libavutil/$arch
3129         libpostproc
3130         libswscale
3131         libswscale/$arch
3132         tests
3133         tools
3134     "
3135     FILES="
3136         Makefile
3137         common.mak
3138         subdir.mak
3139         doc/texi2pod.pl
3140         libavcodec/Makefile
3141         libavcodec/${arch}/Makefile
3142         libavcore/Makefile
3143         libavdevice/Makefile
3144         libavfilter/Makefile
3145         libavfilter/${arch}/Makefile
3146         libavformat/Makefile
3147         libavutil/Makefile
3148         libpostproc/Makefile
3149         libswscale/Makefile
3150     "
3151     map 'mkdir -p $v' $DIRS;
3152     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3153 fi
3154
3155 enabled stripping || strip="echo skipping strip"
3156
3157 config_files="$TMPH config.mak"
3158
3159 cat > config.mak <<EOF
3160 # Automatically generated by configure - do not modify!
3161 ifndef FFMPEG_CONFIG_MAK
3162 FFMPEG_CONFIG_MAK=1
3163 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3164 prefix=$prefix
3165 LIBDIR=\$(DESTDIR)$libdir
3166 SHLIBDIR=\$(DESTDIR)$shlibdir
3167 INCDIR=\$(DESTDIR)$incdir
3168 BINDIR=\$(DESTDIR)$bindir
3169 DATADIR=\$(DESTDIR)$datadir
3170 MANDIR=\$(DESTDIR)$mandir
3171 SRC_PATH="$source_path"
3172 SRC_PATH_BARE=$source_path
3173 BUILD_ROOT="$PWD"
3174 CC_IDENT=$cc_ident
3175 ARCH=$arch
3176 CC=$cc
3177 AS=$as
3178 LD=$ld
3179 DEPCC=$dep_cc
3180 YASM=$yasmexe
3181 YASMDEP=$yasmexe
3182 AR=$ar
3183 RANLIB=$ranlib
3184 CP=cp -p
3185 LN_S=$ln_s
3186 STRIP=$strip
3187 CPPFLAGS=$CPPFLAGS
3188 CFLAGS=$CFLAGS
3189 ASFLAGS=$ASFLAGS
3190 CC_O=$CC_O
3191 LDFLAGS=$LDFLAGS
3192 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3193 SHFLAGS=$SHFLAGS
3194 YASMFLAGS=$YASMFLAGS
3195 BUILDSUF=$build_suffix
3196 FULLNAME=$FULLNAME
3197 LIBPREF=$LIBPREF
3198 LIBSUF=$LIBSUF
3199 LIBNAME=$LIBNAME
3200 SLIBPREF=$SLIBPREF
3201 SLIBSUF=$SLIBSUF
3202 EXESUF=$EXESUF
3203 EXTRA_VERSION=$extra_version
3204 DEPFLAGS=$DEPFLAGS
3205 CCDEP=$CCDEP
3206 ASDEP=$ASDEP
3207 CC_DEPFLAGS=$CC_DEPFLAGS
3208 AS_DEPFLAGS=$AS_DEPFLAGS
3209 HOSTCC=$host_cc
3210 HOSTCFLAGS=$host_cflags
3211 HOSTEXESUF=$HOSTEXESUF
3212 HOSTLDFLAGS=$host_ldflags
3213 HOSTLIBS=$host_libs
3214 TARGET_EXEC=$target_exec
3215 TARGET_PATH=$target_path
3216 SDL_LIBS=$sdl_libs
3217 SDL_CFLAGS=$sdl_cflags
3218 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3219 EXTRALIBS=$extralibs
3220 INSTALL=install
3221 LIBTARGET=${LIBTARGET}
3222 SLIBNAME=${SLIBNAME}
3223 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3224 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3225 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3226 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3227 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3228 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3229 SAMPLES=$samples
3230 EOF
3231
3232 get_version(){
3233     name=$1
3234     file=$source_path/$2
3235     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3236     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3237     lcname=$(tolower $name)
3238     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3239     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3240 }
3241
3242 get_version LIBSWSCALE  libswscale/swscale.h
3243 get_version LIBPOSTPROC libpostproc/postprocess.h
3244 get_version LIBAVCODEC  libavcodec/avcodec.h
3245 get_version LIBAVCORE   libavcore/avcore.h
3246 get_version LIBAVDEVICE libavdevice/avdevice.h
3247 get_version LIBAVFORMAT libavformat/avformat.h
3248 get_version LIBAVUTIL   libavutil/avutil.h
3249 get_version LIBAVFILTER libavfilter/avfilter.h
3250
3251 cat > $TMPH <<EOF
3252 /* Automatically generated by configure - do not modify! */
3253 #ifndef FFMPEG_CONFIG_H
3254 #define FFMPEG_CONFIG_H
3255 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3256 #define FFMPEG_LICENSE "$(c_escape $license)"
3257 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3258 #define CC_TYPE "$cc_type"
3259 #define CC_VERSION $cc_version
3260 #define restrict $_restrict
3261 #define EXTERN_PREFIX "${extern_prefix}"
3262 #define EXTERN_ASM ${extern_prefix}
3263 #define SLIBSUF "$SLIBSUF"
3264 EOF
3265
3266 test -n "$malloc_prefix" &&
3267     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3268
3269 if enabled small || disabled optimizations; then
3270     echo "#undef  av_always_inline"  >> $TMPH
3271     if enabled small; then
3272         echo "#define av_always_inline inline"  >> $TMPH
3273     else
3274         echo "#define av_always_inline av_unused"  >> $TMPH
3275     fi
3276 fi
3277
3278 if enabled yasm; then
3279     append config_files $TMPASM
3280     printf '' >$TMPASM
3281 fi
3282
3283 print_config ARCH_   "$config_files" $ARCH_LIST
3284 print_config HAVE_   "$config_files" $HAVE_LIST
3285 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3286                                      $CONFIG_EXTRA      \
3287                                      $DECODER_LIST      \
3288                                      $ENCODER_LIST      \
3289                                      $HWACCEL_LIST      \
3290                                      $PARSER_LIST       \
3291                                      $BSF_LIST          \
3292                                      $DEMUXER_LIST      \
3293                                      $MUXER_LIST        \
3294                                      $FILTER_LIST       \
3295                                      $PROTOCOL_LIST     \
3296                                      $INDEV_LIST        \
3297                                      $OUTDEV_LIST       \
3298
3299 cat >>config.mak <<EOF
3300 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3301 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3302 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3303 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3304 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3305 EOF
3306
3307 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3308 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3309
3310 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3311 cp_if_changed $TMPH config.h
3312 touch .config
3313
3314 enabled yasm && cp_if_changed $TMPASM config.asm
3315
3316 cat > $TMPH <<EOF
3317 /* Generated by ffconf */
3318 #ifndef AVUTIL_AVCONFIG_H
3319 #define AVUTIL_AVCONFIG_H
3320 EOF
3321
3322 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3323
3324 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3325
3326 cp_if_changed $TMPH libavutil/avconfig.h
3327
3328 test -n "$WARNINGS" && printf "\n$WARNINGS"
3329
3330 # build pkg-config files
3331
3332 pkgconfig_generate(){
3333 name=$1
3334 shortname=${name#lib}${build_suffix}
3335 comment=$2
3336 version=$3
3337 libs=$4
3338 requires=$5
3339 enabled ${name#lib} || return 0
3340 cat <<EOF > $name/$name.pc
3341 prefix=$prefix
3342 exec_prefix=\${prefix}
3343 libdir=$libdir
3344 includedir=$incdir
3345
3346 Name: $name
3347 Description: $comment
3348 Version: $version
3349 Requires: $(enabled shared || echo $requires)
3350 Requires.private: $(enabled shared && echo $requires)
3351 Conflicts:
3352 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3353 Libs.private: $(enabled shared && echo $libs)
3354 Cflags: -I\${includedir}
3355 EOF
3356 cat <<EOF > $name/$name-uninstalled.pc
3357 prefix=
3358 exec_prefix=
3359 libdir=\${pcfiledir}
3360 includedir=${source_path}
3361
3362 Name: $name
3363 Description: $comment
3364 Version: $version
3365 Requires: $requires
3366 Conflicts:
3367 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3368 Cflags: -I\${includedir}
3369 EOF
3370 }
3371
3372 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3373 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3374 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3375 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3376 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3377 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3378 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3379 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"