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