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   echo "Usage: configure [options]"
  59   echo "Options: [defaults in brackets after descriptions]"
  60   echo
  61   echo "Standard options:"
  62   echo "  --help                   print this message"
  63   echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  64   echo "  --disable-logging        do not log configure debug information"
  65   echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
  66   echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
  67   echo "  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]"
  68   echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
  69   echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
  70   echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
  71   echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
  72   echo
  73   echo "Configuration options:"
  74   echo "  --disable-static         do not build static libraries [no]"
  75   echo "  --enable-shared          build shared libraries [no]"
  76   echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  77   echo "                           and binaries will be under GPL [no]"
  78   echo "  --enable-version3        upgrade (L)GPL to version 3 [no]"
  79   echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  80   echo "                           and binaries will be unredistributable [no]"
  81   echo "  --disable-ffmpeg         disable ffmpeg build"
  82   echo "  --disable-ffplay         disable ffplay build"
  83   echo "  --disable-ffserver       disable ffserver build"
  84   echo "  --enable-postproc        enable GPLed postprocessing support [no]"
  85   echo "  --enable-avfilter        video filter support [no]"
  86   echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  87   echo "  --enable-beosthreads     use BeOS threads [no]"
  88   echo "  --enable-os2threads      use OS/2 threads [no]"
  89   echo "  --enable-pthreads        use pthreads [no]"
  90   echo "  --enable-w32threads      use Win32 threads [no]"
  91   echo "  --enable-x11grab         enable X11 grabbing [no]"
  92   echo "  --disable-network        disable network support [no]"
  93   echo "  --disable-ipv6           disable IPv6 support [no]"
  94   echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  95   echo "  --enable-gray            enable full grayscale support (slower color)"
  96   echo "  --disable-swscale-alpha  disable alpha channel support in swscale"
  97   echo "  --disable-fastdiv        disable table-based division"
  98   echo "  --enable-small           optimize for size instead of speed"
  99   echo "  --disable-aandct         disable AAN DCT code"
 100   echo "  --disable-fft            disable FFT code"
 101   echo "  --disable-golomb         disable Golomb code"
 102   echo "  --disable-mdct           disable MDCT code"
 103   echo "  --disable-rdft           disable RDFT code"
 104   echo "  --disable-vaapi          disable VAAPI code"
 105   echo "  --disable-vdpau          disable VDPAU code"
 106   echo "  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
 107   echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
 108   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
 109   echo "  --enable-beos-netserver  enable BeOS netserver"
 110   echo "  --disable-encoder=NAME   disable encoder NAME"
 111   echo "  --enable-encoder=NAME    enable encoder NAME"
 112   echo "  --disable-encoders       disable all encoders"
 113   echo "  --disable-decoder=NAME   disable decoder NAME"
 114   echo "  --enable-decoder=NAME    enable decoder NAME"
 115   echo "  --disable-decoders       disable all decoders"
 116   echo "  --disable-hwaccel=NAME   disable hwaccel NAME"
 117   echo "  --enable-hwaccel=NAME    enable hwaccel NAME"
 118   echo "  --disable-hwaccels       disable all hwaccels"
 119   echo "  --disable-muxer=NAME     disable muxer NAME"
 120   echo "  --enable-muxer=NAME      enable muxer NAME"
 121   echo "  --disable-muxers         disable all muxers"
 122   echo "  --disable-demuxer=NAME   disable demuxer NAME"
 123   echo "  --enable-demuxer=NAME    enable demuxer NAME"
 124   echo "  --disable-demuxers       disable all demuxers"
 125   echo "  --enable-parser=NAME     enable parser NAME"
 126   echo "  --disable-parser=NAME    disable parser NAME"
 127   echo "  --disable-parsers        disable all parsers"
 128   echo "  --enable-bsf=NAME        enable bitstream filter NAME"
 129   echo "  --disable-bsf=NAME       disable bitstream filter NAME"
 130   echo "  --disable-bsfs           disable all bitstream filters"
 131   echo "  --enable-protocol=NAME   enable protocol NAME"
 132   echo "  --disable-protocol=NAME  disable protocol NAME"
 133   echo "  --disable-protocols      disable all protocols"
 134   echo "  --disable-indev=NAME     disable input device NAME"
 135   echo "  --disable-outdev=NAME    disable output device NAME"
 136   echo "  --disable-indevs         disable input devices"
 137   echo "  --disable-outdevs        disable output devices"
 138   echo "  --disable-devices        disable all devices"
 139   echo "  --enable-filter=NAME     enable filter NAME"
 140   echo "  --disable-filter=NAME    disable filter NAME"
 141   echo "  --disable-filters        disable all filters"
 142   echo "  --list-decoders          show all available decoders"
 143   echo "  --list-encoders          show all available encoders"
 144   echo "  --list-hwaccels          show all available hardware accelerators"
 145   echo "  --list-muxers            show all available muxers"
 146   echo "  --list-demuxers          show all available demuxers"
 147   echo "  --list-parsers           show all available parsers"
 148   echo "  --list-protocols         show all available protocols"
 149   echo "  --list-bsfs              show all available bitstream filters"
 150   echo "  --list-indevs            show all available input devices"
 151   echo "  --list-outdevs           show all available output devices"
 152   echo "  --list-filters           show all available filters"
 153   echo
 154   echo "External library support:"
 155   echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
 156   echo "  --enable-bzlib           enable bzlib [autodetect]"
 157   echo "  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]"
 158   echo "  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]"
 159   echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
 160   echo "                           and libraw1394 [no]"
 161   echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
 162   echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
 163   echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
 164   echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
 165   echo "  --enable-libgsm          enable GSM support via libgsm [no]"
 166   echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
 167   echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
 168   echo "                           native (de)muxer exists [no]"
 169   echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
 170   echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
 171   echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
 172   echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
 173   echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
 174   echo "                           native implementation exists [no]"
 175   echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
 176   echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
 177   echo "                           native MPEG-4/Xvid encoder exists [no]"
 178   echo "  --enable-mlib            enable Sun medialib [no]"
 179   echo "  --enable-zlib            enable zlib [autodetect]"
 180   echo ""
 181   echo "Advanced options (experts only):"
 182   echo "  --source-path=PATH       path to source code [$source_path]"
 183   echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
 184   echo "  --enable-cross-compile   assume a cross-compiler is used"
 185   echo "  --sysroot=PATH           root of cross-build tree"
 186   echo "  --sysinclude=PATH        location of cross-build system headers"
 187   echo "  --target-os=OS           compiler targets OS [$target_os]"
 188   echo "  --target-exec=CMD        command to run executables on target"
 189   echo "  --target-path=DIR        path to view of build directory on target"
 190   echo "  --nm=NM                  use nm tool"
 191   echo "  --as=AS                  use assembler AS [$as_default]"
 192   echo "  --cc=CC                  use C compiler CC [$cc_default]"
 193   echo "  --ld=LD                  use linker LD"
 194   echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
 195   echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
 196   echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
 197   echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
 198   echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
 199   echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
 200   echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
 201   echo "  --extra-version=STRING   version string suffix []"
 202   echo "  --build-suffix=SUFFIX    library name suffix []"
 203   echo "  --arch=ARCH              select architecture [$arch]"
 204   echo "  --cpu=CPU                select the minimum required CPU (affects"
 205   echo "                           instruction selection, may crash on older CPUs)"
 206   echo "  --enable-powerpc-perf    enable performance report on PPC"
 207   echo "                           (requires enabling PMC)"
 208   echo "  --disable-altivec        disable AltiVec optimizations"
 209   echo "  --disable-amd3dnow       disable 3DNow! optimizations"
 210   echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
 211   echo "  --disable-mmx            disable MMX optimizations"
 212   echo "  --disable-mmx2           disable MMX2 optimizations"
 213   echo "  --disable-sse            disable SSE optimizations"
 214   echo "  --disable-ssse3          disable SSSE3 optimizations"
 215   echo "  --disable-armv5te        disable armv5te optimizations"
 216   echo "  --disable-armv6          disable armv6 optimizations"
 217   echo "  --disable-armv6t2        disable armv6t2 optimizations"
 218   echo "  --disable-armvfp         disable ARM VFP optimizations"
 219   echo "  --disable-iwmmxt         disable iwmmxt optimizations"
 220   echo "  --disable-mmi            disable MMI optimizations"
 221   echo "  --disable-neon           disable neon optimizations"
 222   echo "  --disable-vis            disable VIS optimizations"
 223   echo "  --disable-yasm           disable use of yasm assembler"
 224   echo "  --enable-pic             build position-independent code"
 225   echo
 226   echo "Developer options (useful when working on FFmpeg itself):"
 227   echo "  --disable-debug          disable debugging symbols"
 228   echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
 229   echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 230   echo "  --disable-optimizations  disable compiler optimizations"
 231   echo "  --enable-extra-warnings  enable more compiler warnings"
 232   echo "  --disable-stripping      disable stripping of executables and shared libraries"
 233   echo ""
 234   echo "NOTE: Object files are built at the place where configure is launched."
 235   exit 0
 236 }
 237
 238 log(){
 239     echo "$@" >> $logfile
 240 }
 241
 242 log_file(){
 243     log BEGIN $1
 244     pr -n -t $1 >> $logfile
 245     log END $1
 246 }
 247
 248 echolog(){
 249     log "$@"
 250     echo "$@"
 251 }
 252
 253 die(){
 254     echolog "$@"
 255     cat <<EOF
 256
 257 If you think configure made a mistake, make sure you are using the latest
 258 version from SVN.  If the latest version fails, report the problem to the
 259 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 260 EOF
 261     if disabled logging; then
 262         cat <<EOF
 263 Rerun configure with logging enabled (do not use --disable-logging), and
 264 include the log this produces with your report.
 265 EOF
 266     else
 267 cat <<EOF
 268 Include the log file "$logfile" produced by configure as this will help
 269 solving the problem.
 270 EOF
 271     fi
 272     exit 1
 273 }
 274
 275 # Avoid locale weirdness, besides we really just want to translate ASCII.
 276 toupper(){
 277     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 278 }
 279
 280 tolower(){
 281     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 282 }
 283
 284 c_escape(){
 285     echo "$*" | sed 's/["\\]/\\\0/g'
 286 }
 287
 288 sh_quote(){
 289     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 290     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
 291     echo "$v"
 292 }
 293
 294 filter(){
 295     pat=$1
 296     shift
 297     for v; do
 298         eval "case $v in $pat) echo $v ;; esac"
 299     done
 300 }
 301
 302 set_all(){
 303     value=$1
 304     shift
 305     for var in $*; do
 306         eval $var=$value
 307     done
 308 }
 309
 310 set_weak(){
 311     value=$1
 312     shift
 313     for var; do
 314         eval : \${$var:=$value}
 315     done
 316 }
 317
 318 pushvar(){
 319     for var in $*; do
 320         eval level=\${${var}_level:=0}
 321         eval ${var}_${level}="\$$var"
 322         eval ${var}_level=$(($level+1))
 323     done
 324 }
 325
 326 popvar(){
 327     for var in $*; do
 328         eval level=\${${var}_level:-0}
 329         test $level = 0 && continue
 330         eval level=$(($level-1))
 331         eval $var="\${${var}_${level}}"
 332         eval ${var}_level=$level
 333         eval unset ${var}_${level}
 334     done
 335 }
 336
 337 enable(){
 338     set_all yes $*
 339 }
 340
 341 disable(){
 342     set_all no $*
 343 }
 344
 345 enable_weak(){
 346     set_weak yes $*
 347 }
 348
 349 disable_weak(){
 350     set_weak no $*
 351 }
 352
 353 enable_safe(){
 354     enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 355 }
 356
 357 disable_safe(){
 358     disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
 359 }
 360
 361 do_enable_deep(){
 362     for var; do
 363         enabled $var && continue
 364         eval sel="\$${var}_select"
 365         eval sgs="\$${var}_suggest"
 366         pushvar var sgs
 367         enable_deep $sel
 368         popvar sgs
 369         enable_deep_weak $sgs
 370         popvar var
 371     done
 372 }
 373
 374 enable_deep(){
 375     do_enable_deep $*
 376     enable $*
 377 }
 378
 379 enable_deep_weak(){
 380     do_enable_deep $*
 381     enable_weak $*
 382 }
 383
 384 enabled(){
 385     test "${1#!}" = "$1" && op== || op=!=
 386     eval test "x\$${1#!}" $op "xyes"
 387 }
 388
 389 disabled(){
 390     test "${1#!}" = "$1" && op== || op=!=
 391     eval test "x\$${1#!}" $op "xno"
 392 }
 393
 394 enabled_all(){
 395     for opt; do
 396         enabled $opt || return 1
 397     done
 398 }
 399
 400 disabled_all(){
 401     for opt; do
 402         disabled $opt || return 1
 403     done
 404 }
 405
 406 enabled_any(){
 407     for opt; do
 408         enabled $opt && return 0
 409     done
 410 }
 411
 412 disabled_any(){
 413     for opt; do
 414         disabled $opt && return 0
 415     done
 416     return 1
 417 }
 418
 419 set_default(){
 420     for opt; do
 421         eval : \${$opt:=\$${opt}_default}
 422     done
 423 }
 424
 425 is_in(){
 426     value=$1
 427     shift
 428     for var in $*; do
 429         [ $var = $value ] && return 0
 430     done
 431     return 1
 432 }
 433
 434 check_deps(){
 435     for cfg; do
 436         cfg="${cfg#!}"
 437         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 438         disabled ${cfg}_checking && continue
 439         enable ${cfg}_checking
 440
 441         eval dep_all="\$${cfg}_deps"
 442         eval dep_any="\$${cfg}_deps_any"
 443         eval dep_sel="\$${cfg}_select"
 444         eval dep_sgs="\$${cfg}_suggest"
 445
 446         pushvar cfg dep_all dep_any dep_sel dep_sgs
 447         check_deps $dep_all $dep_any $dep_sel $dep_sgs
 448         popvar cfg dep_all dep_any dep_sel dep_sgs
 449
 450         enabled_all  $dep_all || disable $cfg
 451         enabled_any  $dep_any || disable $cfg
 452         disabled_any $dep_sel && disable $cfg
 453
 454         if enabled $cfg; then
 455             eval dep_extralibs="\$${cfg}_extralibs"
 456             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 457             enable_deep $dep_sel
 458             enable_deep_weak $dep_sgs
 459         fi
 460
 461         disable ${cfg}_checking
 462     done
 463 }
 464
 465 print_config(){
 466     pfx=$1
 467     header=$2
 468     makefile=$3
 469     shift 3
 470     for cfg; do
 471         ucname="$(toupper $cfg)"
 472         if enabled $cfg; then
 473             echo "#define ${pfx}${ucname} 1" >> $header
 474             echo "${pfx}${ucname}=yes" >> $makefile
 475         else
 476             echo "#define ${pfx}${ucname} 0" >> $header
 477         fi
 478     done
 479 }
 480
 481 flags_saved(){
 482     (: ${SAVE_CFLAGS?}) 2> /dev/null
 483 }
 484
 485 save_flags(){
 486     flags_saved && return
 487     SAVE_CFLAGS="$CFLAGS"
 488     SAVE_LDFLAGS="$LDFLAGS"
 489     SAVE_extralibs="$extralibs"
 490 }
 491
 492 restore_flags(){
 493     flags_saved || return
 494     CFLAGS="$SAVE_CFLAGS"
 495     LDFLAGS="$SAVE_LDFLAGS"
 496     extralibs="$SAVE_extralibs"
 497     unset SAVE_CFLAGS
 498     unset SAVE_LDFLAGS
 499     unset SAVE_extralibs
 500 }
 501
 502 temp_cflags(){
 503     save_flags
 504     CFLAGS="$CFLAGS $*"
 505 }
 506
 507 temp_ldflags(){
 508     save_flags
 509     LDFLAGS="$LDFLAGS $*"
 510 }
 511
 512 temp_extralibs(){
 513     save_flags
 514     extralibs="$extralibs $*"
 515 }
 516
 517 append(){
 518     var=$1
 519     shift
 520     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 521     eval "$var=\"\$$var $*\""
 522 }
 523
 524 add_cppflags(){
 525     append CPPFLAGS $($filter_cppflags "$@")
 526 }
 527
 528 add_cflags(){
 529     append CFLAGS $($filter_cflags "$@")
 530 }
 531
 532 add_asflags(){
 533     append ASFLAGS $($filter_asflags "$@")
 534 }
 535
 536 add_ldflags(){
 537     append LDFLAGS "$@"
 538 }
 539
 540 add_extralibs(){
 541     append extralibs "$@"
 542 }
 543
 544 check_cmd(){
 545     log "$@"
 546     "$@" >> $logfile 2>&1
 547 }
 548
 549 check_cc(){
 550     log check_cc "$@"
 551     cat > $TMPC
 552     log_file $TMPC
 553     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 554 }
 555
 556 check_cpp(){
 557     log check_cpp "$@"
 558     cat > $TMPC
 559     log_file $TMPC
 560     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 561 }
 562
 563 check_as(){
 564     log check_as "$@"
 565     cat > $TMPC
 566     log_file $TMPC
 567     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 568 }
 569
 570 check_asm(){
 571     log check_asm "$@"
 572     name="$1"
 573     asm="$2"
 574     shift 2
 575     check_as "$@" <<EOF && enable $name || disable $name
 576 void foo(void){ __asm__ volatile($asm); }
 577 EOF
 578 }
 579
 580 check_yasm(){
 581     log check_yasm "$@"
 582     echo "$1" > $TMPS
 583     log_file $TMPS
 584     shift 1
 585     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 586 }
 587
 588 check_ld(){
 589     log check_ld "$@"
 590     check_cc || return
 591     flags=''
 592     libs=''
 593     for f; do
 594         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 595     done
 596     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 597 }
 598
 599 check_cppflags(){
 600     log check_cppflags "$@"
 601     set -- $($filter_cppflags "$@")
 602     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 603 int x;
 604 EOF
 605 }
 606
 607 check_cflags(){
 608     log check_cflags "$@"
 609     set -- $($filter_cflags "$@")
 610     check_cc "$@" <<EOF && append CFLAGS "$@"
 611 int x;
 612 EOF
 613 }
 614
 615 check_ldflags(){
 616     log check_ldflags "$@"
 617     check_ld "$@" <<EOF && add_ldflags "$@"
 618 int main(void){ return 0; }
 619 EOF
 620 }
 621
 622 check_header(){
 623     log check_header "$@"
 624     header=$1
 625     shift
 626     disable_safe $header
 627     check_cpp "$@" <<EOF && enable_safe $header
 628 #include <$header>
 629 int x;
 630 EOF
 631 }
 632
 633 check_func(){
 634     log check_func "$@"
 635     func=$1
 636     shift
 637     disable $func
 638     check_ld "$@" <<EOF && enable $func
 639 extern int $func();
 640 int main(void){ $func(); }
 641 EOF
 642 }
 643
 644 check_func_headers(){
 645     log check_func_headers "$@"
 646     headers=$1
 647     func=$2
 648     shift 2
 649     disable $func
 650     incs=""
 651     for hdr in $headers; do
 652         incs="$incs
 653 #include <$hdr>"
 654     done
 655     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 656 $incs
 657 int main(int argc, char **argv){
 658     return (long) $func;
 659 }
 660 EOF
 661 }
 662
 663 check_cpp_condition(){
 664     log check_cpp_condition "$@"
 665     header=$1
 666     condition=$2
 667     check_cpp <<EOF
 668 #include <$header>
 669 #if !($condition)
 670 #error "unsatisfied condition: $condition"
 671 #endif
 672 EOF
 673 }
 674
 675 check_lib(){
 676     log check_lib "$@"
 677     header="$1"
 678     func="$2"
 679     shift 2
 680     temp_extralibs "$@"
 681     check_header $header && check_func $func && add_extralibs "$@"
 682     err=$?
 683     restore_flags
 684     return $err
 685 }
 686
 687 check_lib2(){
 688     log check_lib2 "$@"
 689     headers="$1"
 690     func="$2"
 691     shift 2
 692     temp_extralibs "$@"
 693     check_func_headers "$headers" $func && add_extralibs "$@"
 694     err=$?
 695     restore_flags
 696     return $err
 697 }
 698
 699 check_exec(){
 700     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 701 }
 702
 703 check_exec_crash(){
 704     code=$(cat)
 705
 706     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 707     # are safe but may not be available everywhere.  Thus we use
 708     # raise(SIGTERM) instead.  The check is run in a subshell so we
 709     # can redirect the "Terminated" message from the shell.  SIGBUS
 710     # is not defined by standard C so it is used conditionally.
 711
 712     (check_exec "$@") >> $logfile 2>&1 <<EOF
 713 #include <signal.h>
 714 static void sighandler(int sig){
 715     raise(SIGTERM);
 716 }
 717 int main(void){
 718     signal(SIGILL, sighandler);
 719     signal(SIGFPE, sighandler);
 720     signal(SIGSEGV, sighandler);
 721 #ifdef SIGBUS
 722     signal(SIGBUS, sighandler);
 723 #endif
 724     { $code }
 725 }
 726 EOF
 727 }
 728
 729 check_type(){
 730     log check_type "$@"
 731     headers=$1
 732     type=$2
 733     shift 2
 734     disable $type
 735     incs=""
 736     for hdr in $headers; do
 737         incs="$incs
 738 #include <$hdr>"
 739     done
 740     check_cc "$@" <<EOF && enable $type
 741 $incs
 742 $type v;
 743 EOF
 744 }
 745
 746 require(){
 747     name="$1"
 748     header="$2"
 749     func="$3"
 750     shift 3
 751     check_lib $header $func "$@" || die "ERROR: $name not found"
 752 }
 753
 754 require2(){
 755     name="$1"
 756     headers="$2"
 757     func="$3"
 758     shift 3
 759     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 760 }
 761
 762 check_foo_config(){
 763     cfg=$1
 764     pkg=$2
 765     header=$3
 766     func=$4
 767     shift 4
 768     disable $cfg
 769     check_cmd ${pkg}-config --version
 770     err=$?
 771     if test "$err" = 0; then
 772         temp_cflags $(${pkg}-config --cflags)
 773         temp_extralibs $(${pkg}-config --libs)
 774         check_lib "$@" $header $func && enable $cfg
 775     fi
 776     return $err
 777 }
 778
 779 apply(){
 780     file=$1
 781     shift
 782     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 783 }
 784
 785 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 786 # system-dependent things.
 787
 788 COMPONENT_LIST="
 789     bsfs
 790     decoders
 791     demuxers
 792     encoders
 793     filters
 794     hwaccels
 795     indevs
 796     muxers
 797     outdevs
 798     parsers
 799     protocols
 800 "
 801
 802 CONFIG_LIST="
 803     $COMPONENT_LIST
 804     aandct
 805     avfilter
 806     avfilter_lavf
 807     avisynth
 808     beos_netserver
 809     bzlib
 810     fastdiv
 811     ffmpeg
 812     ffplay
 813     ffserver
 814     fft
 815     golomb
 816     gpl
 817     gprof
 818     gray
 819     hardcoded_tables
 820     ipv6
 821     libdc1394
 822     libdirac
 823     libfaac
 824     libfaad
 825     libfaadbin
 826     libgsm
 827     libmp3lame
 828     libnut
 829     libopencore_amrnb
 830     libopencore_amrwb
 831     libopenjpeg
 832     libschroedinger
 833     libspeex
 834     libtheora
 835     libvorbis
 836     libx264
 837     libxvid
 838     mdct
 839     memalign_hack
 840     mlib
 841     mpegaudio_hp
 842     network
 843     nonfree
 844     pic
 845     postproc
 846     powerpc_perf
 847     rdft
 848     runtime_cpudetect
 849     shared
 850     small
 851     static
 852     swscale_alpha
 853     vaapi
 854     vdpau
 855     version3
 856     x11grab
 857     zlib
 858 "
 859
 860 THREADS_LIST='
 861     beosthreads
 862     os2threads
 863     pthreads
 864     w32threads
 865 '
 866
 867 ARCH_LIST='
 868     alpha
 869     arm
 870     avr32
 871     avr32_ap
 872     avr32_uc
 873     bfin
 874     ia64
 875     m68k
 876     mips
 877     mips64
 878     parisc
 879     ppc
 880     ppc64
 881     s390
 882     sh4
 883     sparc
 884     sparc64
 885     x86
 886     x86_32
 887     x86_64
 888 '
 889
 890 ARCH_EXT_LIST='
 891     altivec
 892     amd3dnow
 893     amd3dnowext
 894     armv5te
 895     armv6
 896     armv6t2
 897     armvfp
 898     iwmmxt
 899     mmi
 900     mmx
 901     mmx2
 902     neon
 903     ppc4xx
 904     sse
 905     ssse3
 906     vis
 907 '
 908
 909 HAVE_LIST="
 910     $ARCH_EXT_LIST
 911     $THREADS_LIST
 912     alsa_asoundlib_h
 913     altivec_h
 914     arpa_inet_h
 915     attribute_packed
 916     bigendian
 917     bswap
 918     closesocket
 919     cmov
 920     conio_h
 921     dcbzl
 922     dev_bktr_ioctl_bt848_h
 923     dev_bktr_ioctl_meteor_h
 924     dev_ic_bt8xx_h
 925     dev_video_meteor_ioctl_meteor_h
 926     dev_video_bktr_ioctl_bt848_h
 927     dlfcn_h
 928     dlopen
 929     dos_paths
 930     ebp_available
 931     ebx_available
 932     fast_64bit
 933     fast_cmov
 934     fast_unaligned
 935     fork
 936     gethrtime
 937     GetProcessTimes
 938     getrusage
 939     inet_aton
 940     inline_asm
 941     isatty
 942     ldbrx
 943     libdc1394_1
 944     libdc1394_2
 945     llrint
 946     log2
 947     loongson
 948     lrint
 949     lrintf
 950     lzo1x_999_compress
 951     machine_ioctl_bt848_h
 952     machine_ioctl_meteor_h
 953     malloc_h
 954     memalign
 955     mkstemp
 956     pld
 957     posix_memalign
 958     round
 959     roundf
 960     sdl
 961     sdl_video_size
 962     setmode
 963     socklen_t
 964     soundcard_h
 965     poll_h
 966     sys_mman_h
 967     sys_resource_h
 968     sys_select_h
 969     sys_soundcard_h
 970     sys_videoio_h
 971     ten_operands
 972     termios_h
 973     threads
 974     truncf
 975     vfp_args
 976     VirtualAlloc
 977     winsock2_h
 978     xform_asm
 979     yasm
 980 "
 981
 982 # options emitted with CONFIG_ prefix but not available on command line
 983 CONFIG_EXTRA="
 984     gplv3
 985     lgplv3
 986 "
 987
 988 CMDLINE_SELECT="
 989     $ARCH_EXT_LIST
 990     $CONFIG_LIST
 991     $THREADS_LIST
 992     cross_compile
 993     debug
 994     extra_warnings
 995     logging
 996     optimizations
 997     stripping
 998     yasm
 999 "
1000
1001 PATHS_LIST='
1002     bindir
1003     datadir
1004     incdir
1005     libdir
1006     mandir
1007     prefix
1008     shlibdir
1009 '
1010
1011 CMDLINE_SET="
1012     $PATHS_LIST
1013     arch
1014     as
1015     build_suffix
1016     cc
1017     cpu
1018     cross_prefix
1019     dep_cc
1020     extra_version
1021     host_cc
1022     host_cflags
1023     host_ldflags
1024     host_libs
1025     host_os
1026     ld
1027     logfile
1028     nm
1029     source_path
1030     sysinclude
1031     sysroot
1032     target_exec
1033     target_os
1034     target_path
1035 "
1036
1037 CMDLINE_APPEND="
1038     extra_cflags
1039 "
1040
1041 # code dependency declarations
1042
1043 # architecture extensions
1044 altivec_deps="ppc"
1045 amd3dnow_deps="mmx"
1046 amd3dnowext_deps="amd3dnow"
1047 armv5te_deps="arm"
1048 armv6_deps="arm"
1049 armv6t2_deps="arm"
1050 armvfp_deps="arm"
1051 iwmmxt_deps="arm"
1052 mmi_deps="mips"
1053 mmx_deps="x86"
1054 mmx2_deps="mmx"
1055 neon_deps="arm"
1056 ppc4xx_deps="ppc"
1057 sse_deps="mmx"
1058 ssse3_deps="sse"
1059 vis_deps="sparc"
1060
1061 need_memalign="altivec neon sse"
1062 inline_asm_deps="!tms470"
1063
1064 # decoders / encoders / hardware accelerators
1065 aac_decoder_select="fft mdct"
1066 aac_encoder_select="fft mdct"
1067 ac3_decoder_select="fft mdct"
1068 atrac3_decoder_select="fft mdct"
1069 cavs_decoder_select="golomb"
1070 cook_decoder_select="fft mdct"
1071 cscd_decoder_suggest="zlib"
1072 dca_decoder_select="fft mdct"
1073 dnxhd_encoder_select="aandct"
1074 dxa_decoder_select="zlib"
1075 eac3_decoder_select="ac3_decoder"
1076 eamad_decoder_select="aandct"
1077 eatgq_decoder_select="aandct"
1078 eatqi_decoder_select="aandct"
1079 ffv1_decoder_select="golomb"
1080 flac_decoder_select="golomb"
1081 flac_encoder_select="golomb"
1082 flashsv_decoder_select="zlib"
1083 flashsv_encoder_select="zlib"
1084 flv_encoder_select="h263_encoder"
1085 h261_encoder_select="aandct"
1086 h263_encoder_select="aandct"
1087 h263_vaapi_hwaccel_deps="va_va_h"
1088 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1089 h263p_encoder_select="h263_encoder"
1090 h264_decoder_select="golomb"
1091 h264_vaapi_hwaccel_deps="va_va_h"
1092 h264_vaapi_hwaccel_select="vaapi"
1093 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1094 h264_vdpau_decoder_select="vdpau h264_decoder"
1095 imc_decoder_select="fft mdct"
1096 jpegls_decoder_select="golomb"
1097 jpegls_encoder_select="golomb"
1098 ljpeg_encoder_select="aandct"
1099 loco_decoder_select="golomb"
1100 mjpeg_encoder_select="aandct"
1101 mpeg1video_encoder_select="aandct"
1102 mpeg2video_encoder_select="aandct"
1103 mpeg4_encoder_select="h263_encoder"
1104 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1105 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1106 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1107 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1108 mpeg2_vaapi_hwaccel_deps="va_va_h"
1109 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1110 mpeg4_vaapi_hwaccel_deps="va_va_h"
1111 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1112 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1113 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1114 msmpeg4v1_encoder_select="h263_encoder"
1115 msmpeg4v2_encoder_select="h263_encoder"
1116 msmpeg4v3_encoder_select="h263_encoder"
1117 nellymoser_decoder_select="fft mdct"
1118 nellymoser_encoder_select="fft mdct"
1119 png_decoder_select="zlib"
1120 png_encoder_select="zlib"
1121 qdm2_decoder_select="fft mdct rdft"
1122 rv10_encoder_select="h263_encoder"
1123 rv20_encoder_select="h263_encoder"
1124 rv30_decoder_select="golomb"
1125 rv40_decoder_select="golomb"
1126 shorten_decoder_select="golomb"
1127 sonic_decoder_select="golomb"
1128 sonic_encoder_select="golomb"
1129 sonic_ls_encoder_select="golomb"
1130 svq3_decoder_select="golomb"
1131 svq3_decoder_suggest="zlib"
1132 theora_decoder_select="vp3_decoder"
1133 tiff_decoder_suggest="zlib"
1134 tiff_encoder_suggest="zlib"
1135 tscc_decoder_select="zlib"
1136 vc1_vaapi_hwaccel_deps="va_va_h"
1137 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1138 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1139 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1140 vorbis_decoder_select="fft mdct"
1141 vorbis_encoder_select="fft mdct"
1142 vp6a_decoder_select="vp6_decoder"
1143 vp6f_decoder_select="vp6_decoder"
1144 wmav1_decoder_select="fft mdct"
1145 wmav1_encoder_select="fft mdct"
1146 wmav2_decoder_select="fft mdct"
1147 wmav2_encoder_select="fft mdct"
1148 wmv1_encoder_select="h263_encoder"
1149 wmv2_encoder_select="h263_encoder"
1150 wmv3_decoder_select="vc1_decoder"
1151 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1152 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1153 zlib_decoder_select="zlib"
1154 zlib_encoder_select="zlib"
1155 zmbv_decoder_select="zlib"
1156 zmbv_encoder_select="zlib"
1157
1158 # parsers
1159 h264_parser_select="golomb"
1160
1161 # external libraries
1162 libdirac_decoder_deps="libdirac !libschroedinger"
1163 libdirac_encoder_deps="libdirac"
1164 libfaac_encoder_deps="libfaac"
1165 libfaad_decoder_deps="libfaad"
1166 libfaadbin_decoder_extralibs='$ldl'
1167 libgsm_decoder_deps="libgsm"
1168 libgsm_encoder_deps="libgsm"
1169 libgsm_ms_decoder_deps="libgsm"
1170 libgsm_ms_encoder_deps="libgsm"
1171 libmp3lame_encoder_deps="libmp3lame"
1172 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1173 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1174 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1175 libopenjpeg_decoder_deps="libopenjpeg"
1176 libschroedinger_decoder_deps="libschroedinger"
1177 libschroedinger_encoder_deps="libschroedinger"
1178 libspeex_decoder_deps="libspeex"
1179 libtheora_encoder_deps="libtheora"
1180 libvorbis_encoder_deps="libvorbis"
1181 libx264_encoder_deps="libx264"
1182 libxvid_encoder_deps="libxvid"
1183
1184 # demuxers / muxers
1185 ac3_demuxer_deps="ac3_parser"
1186 asf_stream_muxer_select="asf_muxer"
1187 avisynth_demuxer_deps="avisynth"
1188 dirac_demuxer_deps="dirac_parser"
1189 ipod_muxer_select="mov_muxer"
1190 libnut_demuxer_deps="libnut"
1191 libnut_muxer_deps="libnut"
1192 matroska_audio_muxer_select="matroska_muxer"
1193 matroska_demuxer_suggest="zlib bzlib"
1194 mov_demuxer_suggest="zlib"
1195 mp3_demuxer_deps="mpegaudio_parser"
1196 mp4_muxer_select="mov_muxer"
1197 mpegtsraw_demuxer_select="mpegts_demuxer"
1198 mxf_d10_muxer_select="mxf_muxer"
1199 psp_muxer_select="mov_muxer"
1200 redir_demuxer_deps="network"
1201 rtp_muxer_deps="network rtp_protocol"
1202 rtsp_demuxer_deps="sdp_demuxer"
1203 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1204 tg2_muxer_select="mov_muxer"
1205 tgp_muxer_select="mov_muxer"
1206
1207 # indevs / outdevs
1208 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1209 alsa_indev_extralibs="-lasound"
1210 alsa_outdev_deps="alsa_asoundlib_h"
1211 alsa_outdev_extralibs="-lasound"
1212 audio_beos_indev_deps="audio_beos"
1213 audio_beos_indev_extralibs="-lmedia -lbe"
1214 audio_beos_outdev_deps="audio_beos"
1215 audio_beos_outdev_extralibs="-lmedia -lbe"
1216 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1217 dv1394_indev_deps="dv1394 dv_demuxer"
1218 jack_indev_deps="jack_jack_h"
1219 jack_indev_extralibs="-ljack"
1220 libdc1394_indev_deps="libdc1394"
1221 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1222 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1223 v4l_indev_deps="linux_videodev_h"
1224 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1225 vfwcap_indev_deps="capCreateCaptureWindow"
1226 vfwcap_indev_extralibs="-lvfw32"
1227 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1228 x11_grab_device_indev_extralibs="-lX11 -lXext"
1229
1230 # protocols
1231 gopher_protocol_deps="network"
1232 http_protocol_deps="network"
1233 rtmp_protocol_deps="tcp_protocol"
1234 rtp_protocol_deps="udp_protocol"
1235 tcp_protocol_deps="network"
1236 udp_protocol_deps="network"
1237
1238 # filters
1239 movie_filter_deps="avfilter_lavf"
1240
1241 # programs
1242 ffplay_deps="sdl"
1243 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1244 ffserver_extralibs='$ldl'
1245
1246
1247 # default parameters
1248
1249 logfile="config.err"
1250
1251 # installation paths
1252 prefix_default="/usr/local"
1253 bindir_default='${prefix}/bin'
1254 datadir_default='${prefix}/share/ffmpeg'
1255 incdir_default='${prefix}/include'
1256 libdir_default='${prefix}/lib'
1257 mandir_default='${prefix}/share/man'
1258 shlibdir_default="$libdir_default"
1259
1260 # toolchain
1261 ar="ar"
1262 cc_default="gcc"
1263 host_cc_default="gcc"
1264 ln_s="ln -sf"
1265 nm_default="nm"
1266 objformat="elf"
1267 ranlib="ranlib"
1268 strip="strip"
1269 yasmexe="yasm"
1270
1271 # machine
1272 arch=$(uname -m)
1273 cpu="generic"
1274
1275 # OS
1276 target_os=$(tolower $(uname -s))
1277 host_os=$target_os
1278
1279 # configurable options
1280 enable debug
1281 enable fastdiv
1282 enable ffmpeg
1283 enable ffplay
1284 enable ffserver
1285 enable ipv6
1286 enable mpegaudio_hp
1287 enable network
1288 enable optimizations
1289 enable protocols
1290 enable static
1291 enable stripping
1292 enable swscale_alpha
1293
1294 # build settings
1295 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1296 FFSERVERLDFLAGS=-Wl,-E
1297 LIBPREF="lib"
1298 LIBSUF=".a"
1299 FULLNAME='$(NAME)$(BUILDSUF)'
1300 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1301 SLIBPREF="lib"
1302 SLIBSUF=".so"
1303 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1304 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1305 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1306 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1307
1308 CC_O='-o $@'
1309
1310 host_cflags='-O3 -g -Wall'
1311 host_libs='-lm'
1312
1313 target_path='.'
1314
1315 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1316 # full relative path for objects in subdirectories for non-recursive Make.
1317 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1318 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1319
1320 # find source path
1321 source_path="$(dirname "$0")"
1322 enable source_path_used
1323 if test -f configure; then
1324     source_path="$(pwd)"
1325     disable source_path_used
1326 else
1327     source_path="$(cd "$source_path"; pwd)"
1328     echo "$source_path" | grep -q '[[:blank:]]' &&
1329         die "Out of tree builds are impossible with whitespace in source path."
1330     test -e "$source_path/config.h" &&
1331         die "Out of tree builds are impossible with config.h in source dir."
1332 fi
1333
1334 for v in "$@"; do
1335     r=${v#*=}
1336     l=${v%"$r"}
1337     r=$(sh_quote "$r")
1338     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1339 done
1340
1341 find_things(){
1342     thing=$1
1343     pattern=$2
1344     file=$source_path/$3
1345     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1346 }
1347
1348 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1349 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1350 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1351 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1352 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1353 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1354 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1355 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1356 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1357 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1358 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1359
1360 enable $ARCH_EXT_LIST \
1361        $DECODER_LIST \
1362        $ENCODER_LIST \
1363        $HWACCEL_LIST \
1364        $PARSER_LIST \
1365        $BSF_LIST \
1366        $DEMUXER_LIST \
1367        $MUXER_LIST \
1368        $FILTER_LIST \
1369        $PROTOCOL_LIST \
1370        $INDEV_LIST \
1371        $OUTDEV_LIST \
1372
1373 die_unknown(){
1374     echo "Unknown option \"$1\"."
1375     echo "See $0 --help for available options."
1376     exit 1
1377 }
1378
1379 show_list() {
1380     suffix=_$1
1381     shift
1382     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1383     exit 0
1384 }
1385
1386 for opt do
1387     optval="${opt#*=}"
1388     case "$opt" in
1389     --extra-ldflags=*) add_ldflags $optval
1390     ;;
1391     --extra-libs=*) add_extralibs $optval
1392     ;;
1393     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1394     ;;
1395     --enable-debug=*) debuglevel="$optval"
1396     ;;
1397     --enable-*=*|--disable-*=*)
1398     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1399     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1400     eval list=\$$(toupper $thing)_LIST
1401     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1402     $action $(filter "$name" $list)
1403     ;;
1404     --enable-?*|--disable-?*)
1405     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1406     if is_in $option $COMPONENT_LIST; then
1407         test $action = disable && action=unset
1408         eval $action \$$(toupper ${option%s})_LIST
1409     elif is_in $option $CMDLINE_SELECT; then
1410         $action $option
1411     else
1412         die_unknown $opt
1413     fi
1414     ;;
1415     --list-*)
1416         NAME="${opt#--list-}"
1417         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1418         NAME=${NAME%s}
1419         eval show_list $NAME \$$(toupper $NAME)_LIST
1420     ;;
1421     --help|-h) show_help
1422     ;;
1423     *)
1424     optname="${opt%%=*}"
1425     optname="${optname#--}"
1426     optname=$(echo "$optname" | sed 's/-/_/g')
1427     if is_in $optname $CMDLINE_SET; then
1428         eval $optname='$optval'
1429     elif is_in $optname $CMDLINE_APPEND; then
1430         append $optname "$optval"
1431     else
1432          die_unknown $opt
1433     fi
1434     ;;
1435     esac
1436 done
1437
1438 disabled logging && logfile=/dev/null
1439
1440 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1441 set >> $logfile
1442
1443 test -n "$cross_prefix" && enable cross_compile
1444
1445 ar="${cross_prefix}${ar}"
1446 cc_default="${cross_prefix}${cc_default}"
1447 nm_default="${cross_prefix}${nm_default}"
1448 ranlib="${cross_prefix}${ranlib}"
1449 strip="${cross_prefix}${strip}"
1450
1451 sysinclude_default="${sysroot}/usr/include"
1452
1453 set_default cc nm sysinclude
1454 enabled cross_compile || host_cc_default=$cc
1455 set_default host_cc
1456
1457 exesuf() {
1458     case $1 in
1459         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1460     esac
1461 }
1462
1463 EXESUF=$(exesuf $target_os)
1464 HOSTEXESUF=$(exesuf $host_os)
1465
1466 # set temporary file name
1467 : ${TMPDIR:=$TEMPDIR}
1468 : ${TMPDIR:=$TMP}
1469 : ${TMPDIR:=/tmp}
1470
1471 if ! check_cmd type mktemp; then
1472     # simple replacement for missing mktemp
1473     # NOT SAFE FOR GENERAL USE
1474     mktemp(){
1475         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1476     }
1477 fi
1478
1479 tmpfile(){
1480     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1481         (set -C; exec > $tmp) 2>/dev/null ||
1482         die "Unable to create temporary file in $TMPDIR."
1483     append TMPFILES $tmp
1484     eval $1=$tmp
1485 }
1486
1487 trap 'rm -f -- $TMPFILES' EXIT
1488 trap exit HUP INT TERM
1489
1490 tmpfile TMPC  .c
1491 tmpfile TMPE  $EXESUF
1492 tmpfile TMPH  .h
1493 tmpfile TMPO  .o
1494 tmpfile TMPS  .S
1495 tmpfile TMPSH .sh
1496
1497 unset -f mktemp
1498
1499 # make sure we can execute files in $TMPDIR
1500 cat > $TMPSH 2>> $logfile <<EOF
1501 #! /bin/sh
1502 EOF
1503 chmod +x $TMPSH >> $logfile 2>&1
1504 if ! $TMPSH >> $logfile 2>&1; then
1505     cat <<EOF
1506 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1507 variable to another directory and make sure that it is not mounted noexec.
1508 EOF
1509     die "Sanity test failed."
1510 fi
1511
1512 filter_cflags=echo
1513 filter_cppflags=echo
1514 filter_asflags=echo
1515
1516 if   $cc -v 2>&1 | grep -qi ^gcc; then
1517     cc_type=gcc
1518     if ! $cc -dumpversion | grep -q '^2\.'; then
1519         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1520         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1521     fi
1522 elif $cc --version 2>/dev/null | grep -q Intel; then
1523     cc_type=icc
1524     CC_DEPFLAGS='-MMD'
1525     AS_DEPFLAGS='-MMD'
1526 elif $cc -v 2>&1 | grep -q xlc; then
1527     cc_type=xlc
1528 elif $cc -V 2>/dev/null | grep -q Compaq; then
1529     cc_type=ccc
1530     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1531     debuglevel=3
1532     add_ldflags -Wl,-z,now # calls to libots crash without this
1533 elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1534     test -d "$sysroot" || die "No valid sysroot specified."
1535     cc_type=armcc
1536     armcc_conf="$PWD/armcc.conf"
1537     $cc --arm_linux_configure                 \
1538         --arm_linux_config_file="$armcc_conf" \
1539         --configure_sysroot="$sysroot"        \
1540         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1541         die "Error creating armcc configuration file."
1542     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1543     as_default="${cross_prefix}gcc"
1544     CC_DEPFLAGS='-MMD'
1545     AS_DEPFLAGS='-MMD'
1546 elif $cc -version 2>/dev/null | grep -q TMS470; then
1547     cc_type=tms470
1548     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1549     CC_O='-fr=$(@D)'
1550     as_default="${cross_prefix}gcc"
1551     ld_default="${cross_prefix}gcc"
1552     TMPO=$(basename $TMPC .c).o
1553     append TMPFILES $TMPO
1554     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1555     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1556     AS_DEPFLAGS='-MMD'
1557     filter_cflags=tms470_flags
1558     tms470_flags(){
1559         for flag; do
1560             case $flag in
1561                 -march=*|-mcpu=*)
1562                     case "${flag#*=}" in
1563                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1564                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1565                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1566                         armv6*|arm11*)          echo -mv=6   ;;
1567                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1568                                                 echo -mv=5e  ;;
1569                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1570                     esac
1571                     ;;
1572                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1573                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1574                 -mfpu=softvfp)  echo --float_support=vfplib       ;;
1575                 -Os)            echo -O3 -mf=2                    ;;
1576                 -O[0-3])        echo $flag -mf=5                  ;;
1577                 -g)             echo -g -mn                       ;;
1578             esac
1579         done
1580     }
1581 fi
1582
1583 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1584
1585 : ${as_default:=$cc}
1586 : ${dep_cc_default:=$cc}
1587 : ${ld_default:=$cc}
1588 set_default as dep_cc ld
1589
1590 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1591 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1592
1593 add_cflags $extra_cflags
1594 add_asflags $extra_cflags
1595
1596 if test -n "$sysroot"; then
1597     case "$cc_type" in
1598         gcc)
1599             add_cppflags --sysroot="$sysroot"
1600             add_ldflags --sysroot="$sysroot"
1601         ;;
1602         tms470)
1603             add_cppflags -I"$sysinclude"
1604             add_ldflags  --sysroot="$sysroot"
1605         ;;
1606     esac
1607 fi
1608
1609 if test "$cpu" = host; then
1610     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1611
1612     case "$cc_type" in
1613         gcc)
1614             check_native(){
1615                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1616                 awk "/$1=/{ match(\$0, /$1=(\\w+)/, a);print a[1];exit }" $TMPE
1617             }
1618             cpu=$(check_native -march || check_native -mcpu)
1619         ;;
1620     esac
1621
1622     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1623 fi
1624
1625 # Add processor-specific flags
1626 case $cpu in
1627     601|ppc601|PowerPC601)
1628         cpuflags="-mcpu=601"
1629     ;;
1630     603*|ppc603*|PowerPC603*)
1631         cpuflags="-mcpu=603"
1632     ;;
1633     604*|ppc604*|PowerPC604*)
1634         cpuflags="-mcpu=604"
1635     ;;
1636     G3|g3|75*|ppc75*|PowerPC75*)
1637         cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1638     ;;
1639     G4|g4|745*|ppc745*|PowerPC745*)
1640         cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1641     ;;
1642     74*|ppc74*|PowerPC74*)
1643         cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1644     ;;
1645     G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1646         cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1647     ;;
1648     Cell|CELL|cell)
1649         cpuflags="-mcpu=cell"
1650         enable ldbrx
1651     ;;
1652     # targets that do NOT support conditional mov (cmov)
1653     i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1654         cpuflags="-march=$cpu"
1655         disable cmov
1656     ;;
1657     # targets that do support conditional mov (cmov)
1658     i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1659         cpuflags="-march=$cpu"
1660         enable cmov
1661         enable fast_cmov
1662     ;;
1663     # targets that do support conditional mov but on which it's slow
1664     pentium4|pentium4m|prescott|nocona)
1665         cpuflags="-march=$cpu"
1666         enable cmov
1667         disable fast_cmov
1668     ;;
1669     sparc64)
1670         cpuflags="-mcpu=v9"
1671     ;;
1672     arm11*|cortex*)
1673         cpuflags="-mcpu=$cpu"
1674         enable fast_unaligned
1675     ;;
1676     armv[67]*)
1677         cpuflags="-march=$cpu"
1678         enable fast_unaligned
1679     ;;
1680     armv*)
1681         cpuflags="-march=$cpu"
1682     ;;
1683     arm*)
1684         cpuflags="-mcpu=$cpu"
1685     ;;
1686     ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1687         enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1688     ;;
1689     bf*)
1690         cpuflags="-mcpu=$cpu"
1691     ;;
1692     mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1693         cpuflags="-march=$cpu"
1694     ;;
1695     ap7[02]0[0-2])
1696         subarch="avr32_ap"
1697         cpuflags="-mpart=$cpu"
1698     ;;
1699     ap)
1700         subarch="avr32_ap"
1701         cpuflags="-march=$cpu"
1702     ;;
1703     uc3[ab]*)
1704         subarch="avr32_uc"
1705         cpuflags="-mcpu=$cpu"
1706     ;;
1707     uc)
1708         subarch="avr32_uc"
1709         cpuflags="-march=$cpu"
1710     ;;
1711     generic)
1712     ;;
1713     *)
1714         echo "WARNING: Unknown CPU \"$cpu\", ignored."
1715     ;;
1716 esac
1717
1718 add_cflags $cpuflags
1719 add_asflags $cpuflags
1720
1721 # compiler sanity check
1722 check_exec <<EOF
1723 int main(void){ return 0; }
1724 EOF
1725 if test "$?" != 0; then
1726     echo "$cc is unable to create an executable file."
1727     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1728         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1729         echo "Only do this if you know what cross compiling means."
1730     fi
1731     die "C compiler test failed."
1732 fi
1733
1734 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1735 check_cflags -std=c99
1736 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1737 #include <stdlib.h>
1738 EOF
1739 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1740 #include <stdlib.h>
1741 EOF
1742
1743 case "$arch" in
1744     alpha)
1745         arch="alpha"
1746         enable fast_64bit
1747         check_cflags -mieee
1748         spic=$shared
1749     ;;
1750     arm|armv[4567]*l)
1751         arch="arm"
1752     ;;
1753     avr32)
1754     ;;
1755     bfin)
1756         arch="bfin"
1757     ;;
1758     ia64)
1759         arch="ia64"
1760         enable fast_64bit
1761         spic=$shared
1762     ;;
1763     m68k)
1764         arch="m68k"
1765     ;;
1766     mips|mipsel|IP*)
1767         arch="mips"
1768         spic=$shared
1769     ;;
1770     mips64)
1771         arch="mips"
1772         subarch="mips64"
1773         enable fast_64bit
1774         spic=$shared
1775     ;;
1776     parisc|hppa)
1777         arch="parisc"
1778         spic=$shared
1779     ;;
1780     parisc64|hppa64)
1781         arch="parisc"
1782         enable fast_64bit
1783         spic=$shared
1784     ;;
1785     "Power Macintosh"|ppc|powerpc)
1786         arch="ppc"
1787         enable fast_unaligned
1788     ;;
1789     ppc64)
1790         arch="ppc"
1791         subarch="ppc64"
1792         enable fast_64bit
1793         enable fast_unaligned
1794     ;;
1795     s390|s390x)
1796         arch="s390"
1797     ;;
1798     sh4|sh)
1799         arch="sh4"
1800     ;;
1801     sparc)
1802         arch="sparc"
1803         spic=$shared
1804     ;;
1805     sun4u|sparc64)
1806         arch="sparc"
1807         subarch="sparc64"
1808         enable fast_64bit
1809         spic=$shared
1810     ;;
1811     i386|i486|i586|i686|i86pc|BePC)
1812         arch="x86"
1813         subarch="x86_32"
1814         enable fast_unaligned
1815     ;;
1816     x86_64|amd64)
1817         arch="x86"
1818         subarch="x86_32"
1819         enable cmov
1820         enable fast_cmov
1821         enable fast_unaligned
1822         check_cc <<EOF && enable fast_64bit && subarch="x86_64" && spic=$shared
1823         int test[sizeof(char*) - 7];
1824 EOF
1825     ;;
1826     *)
1827         arch="unknown"
1828     ;;
1829 esac
1830
1831 enable $arch $subarch
1832 enabled spic && enable pic
1833
1834 # OS specific
1835 case $target_os in
1836     beos|haiku|zeta)
1837         prefix_default="$HOME/config"
1838         # helps building libavcodec
1839         add_cppflags -DPIC
1840         add_cflags -fomit-frame-pointer
1841         # 3 gcc releases known for BeOS, each with ugly bugs
1842         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1843         case "$gcc_version" in
1844           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1845             disable mmx
1846             ;;
1847           *20010315*) echo "BeBits gcc"
1848             add_cflags -fno-expensive-optimizations
1849             ;;
1850         esac
1851         SHFLAGS=-nostart
1852         # enable BeOS things
1853         enable audio_beos
1854         # no need for libm, but the inet stuff
1855         # Check for BONE
1856         # XXX: actually should check for NOT net_server
1857         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1858             network_extralibs="-lbind -lsocket"
1859         else
1860             enable beos_netserver
1861             network_extralibs="-lnet"
1862         fi ;;
1863     sunos)
1864         FFSERVERLDFLAGS=""
1865         SHFLAGS='-shared -Wl,-h,$$(@F)'
1866         network_extralibs="-lsocket -lnsl"
1867         add_cppflags -D__EXTENSIONS__
1868         ;;
1869     netbsd)
1870         oss_indev_extralibs="-lossaudio"
1871         oss_outdev_extralibs="-lossaudio"
1872         ;;
1873     openbsd)
1874         enable malloc_aligned
1875         enable pic
1876         SHFLAGS='-shared'
1877         oss_indev_extralibs="-lossaudio"
1878         oss_outdev_extralibs="-lossaudio"
1879         ;;
1880     freebsd|dragonfly)
1881         enable malloc_aligned
1882         ;;
1883     bsd/os)
1884         osextralibs="-lpoll -lgnugetopt"
1885         strip="strip -d"
1886         ;;
1887     darwin)
1888         enable malloc_aligned
1889         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1890         strip="strip -x"
1891         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1892         SLIBSUF=".dylib"
1893         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1894         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1895         FFSERVERLDFLAGS=-Wl,-bind_at_load
1896         objformat="macho"
1897         enabled x86_64 && objformat="macho64"
1898         enabled shared ||
1899             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
1900         ;;
1901     mingw32*)
1902         if test $target_os = "mingw32ce"; then
1903             disable network
1904         else
1905             target_os=mingw32
1906         fi
1907         LIBTARGET=i386
1908         if enabled x86_64; then
1909             enable malloc_aligned
1910             LIBTARGET=x64
1911         elif enabled arm; then
1912             LIBTARGET=arm
1913         fi
1914         shlibdir_default="$bindir_default"
1915         disable ffserver
1916         SLIBPREF=""
1917         SLIBSUF=".dll"
1918         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1919         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1920         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1921         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1922             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
1923             install -d "$(LIBDIR)"; \
1924             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
1925         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1926         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1927         objformat="win32"
1928         enable dos_paths
1929         check_cflags -fno-common
1930         if ! enabled x86_64; then
1931             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1932                 die "ERROR: MinGW runtime version must be >= 3.15."
1933             enabled_any avisynth vfwcap_indev &&
1934                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1935                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
1936             fi
1937         ;;
1938     cygwin*)
1939         target_os=cygwin
1940         shlibdir_default="$bindir_default"
1941         SLIBPREF="cyg"
1942         SLIBSUF=".dll"
1943         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1944         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1945         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1946         objformat="win32"
1947         enable dos_paths
1948         check_cflags -fno-common
1949         ;;
1950     *-dos|freedos|opendos)
1951         disable ffplay ffserver
1952         disable $INDEV_LIST $OUTDEV_LIST
1953         network_extralibs="-lsocket"
1954         objformat="coff"
1955         enable dos_paths
1956         ;;
1957     linux)
1958         enable dv1394
1959         ;;
1960     irix*)
1961         target_os=irix
1962         ranlib="echo ignoring ranlib"
1963         ;;
1964     os/2*)
1965         strip="lxlite"
1966         ln_s="cp -f"
1967         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1968         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1969         FFSERVERLDFLAGS=""
1970         LIBSUF="_s.a"
1971         SLIBPREF=""
1972         SLIBSUF=".dll"
1973         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1974         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1975         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1976           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1977           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1978           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1979           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1980           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1981         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1982           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1983         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1984         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1985         enable dos_paths
1986         ;;
1987     gnu/kfreebsd)
1988         ;;
1989     gnu)
1990         ;;
1991
1992     *)
1993         die "Unknown OS '$target_os'."
1994         ;;
1995 esac
1996
1997 set_default $PATHS_LIST
1998
1999 add_extralibs $osextralibs
2000
2001 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2002 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2003
2004 # we need to build at least one lib type
2005 if ! enabled_any static shared; then
2006     cat <<EOF
2007 At least one library type must be built.
2008 Specify --enable-static to build the static libraries or --enable-shared to
2009 build the shared libraries as well. To only build the shared libraries specify
2010 --disable-static in addition to --enable-shared.
2011 EOF
2012     exit 1;
2013 fi
2014
2015 disabled static && LIBNAME=""
2016
2017 if enabled_any libfaad libfaadbin ; then
2018     if check_header faad.h; then
2019         check_cc <<EOF
2020 #include <faad.h>
2021 #ifndef FAAD2_VERSION
2022 ok faad1
2023 #endif
2024 int main(void) { return 0; }
2025 EOF
2026         test $? = 0 && enable libfaad2
2027     else
2028         die "FAAD test failed."
2029     fi
2030 fi
2031
2032
2033 die_license_disabled() {
2034     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2035 }
2036
2037 die_license_disabled gpl libfaad2
2038 die_license_disabled gpl libx264
2039 die_license_disabled gpl libxvid
2040 die_license_disabled gpl postproc
2041 die_license_disabled gpl x11grab
2042
2043 die_license_disabled nonfree libfaac
2044
2045 die_license_disabled version3 libopencore_amrnb
2046 die_license_disabled version3 libopencore_amrwb
2047
2048 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2049
2050 check_deps $ARCH_EXT_LIST
2051
2052 disabled optimizations || check_cflags -fomit-frame-pointer
2053
2054 if enabled pic; then
2055     add_cppflags -DPIC
2056     add_cflags   -fPIC
2057     add_asflags  -fPIC
2058 fi
2059
2060 check_cc <<EOF || die "Symbol mangling check failed."
2061 int ff_extern;
2062 EOF
2063 sym=$($nm -P -g $TMPO | grep ff_extern)
2064 extern_prefix=${sym%%ff_extern*}
2065
2066 check_cc <<EOF && enable inline_asm
2067 void foo(void) { __asm__ volatile ("" ::); }
2068 EOF
2069
2070 _restrict=
2071 for restrict_keyword in restrict __restrict__ __restrict; do
2072     check_cc <<EOF && _restrict=$restrict_keyword && break
2073 void foo(char * $restrict_keyword p);
2074 EOF
2075 done
2076
2077 check_cc <<EOF && enable attribute_packed
2078 struct { int x; } __attribute__((packed)) x;
2079 EOF
2080
2081 check_cc <<EOF || die "endian test failed"
2082 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2083 EOF
2084 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2085
2086 if enabled arm; then
2087
2088     check_ld <<EOF && enable vfp_args
2089 __asm__ (".eabi_attribute 28, 1");
2090 int main(void) { return 0; }
2091 EOF
2092
2093     # We have to check if pld is a nop and disable it.
2094     check_asm pld '"pld [r0]"'
2095
2096     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2097     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2098     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2099     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2100     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2101     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2102
2103 elif enabled mips; then
2104
2105     check_asm loongson '"dmult.g $1, $2, $3"'
2106     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2107
2108 elif enabled ppc; then
2109
2110     check_asm dcbzl     '"dcbzl 0, 1"'
2111     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2112     check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
2113
2114     # AltiVec flags: The FSF version of GCC differs from the Apple version
2115     if enabled altivec; then
2116         check_cflags -maltivec -mabi=altivec &&
2117         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2118         check_cflags -faltivec
2119
2120         # check if our compiler supports Motorola AltiVec C API
2121         check_cc <<EOF || disable altivec
2122 $inc_altivec_h
2123 int main(void) {
2124     vector signed int v1, v2, v3;
2125     v1 = vec_add(v2,v3);
2126     return 0;
2127 }
2128 EOF
2129
2130         # check if our compiler supports braces for vector declarations
2131         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2132 $inc_altivec_h
2133 int main (void) { (vector int) {1}; return 0; }
2134 EOF
2135     fi
2136
2137 elif enabled sparc; then
2138
2139     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2140         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2141
2142 elif enabled x86; then
2143
2144     # check whether EBP is available on x86
2145     # As 'i' is stored on the stack, this program will crash
2146     # if the base pointer is used to access it because the
2147     # base pointer is cleared in the inline assembly code.
2148     check_exec_crash <<EOF && enable ebp_available
2149     volatile int i=0;
2150     __asm__ volatile (
2151         "xorl %%ebp, %%ebp"
2152     ::: "%ebp");
2153     return i;
2154 EOF
2155
2156     # check wether EBX is available on x86
2157     check_asm ebx_available '"":::"%ebx"'
2158
2159     # check whether more than 10 operands are supported
2160     check_cc <<EOF && enable ten_operands
2161 int main(void) {
2162     int x=0;
2163     __asm__ volatile(
2164         ""
2165         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2166     );
2167     return 0;
2168 }
2169 EOF
2170
2171     # check whether binutils is new enough to compile SSSE3/MMX2
2172     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2173     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2174
2175     check_asm bswap '"bswap %%eax" ::: "%eax"'
2176
2177     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2178     enabled     x86_64        && append YASMFLAGS "-m amd64"
2179     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
2180     case "$objformat" in
2181         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2182         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
2183         *)                    append YASMFLAGS "-DPREFIX"  ;;
2184     esac
2185     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2186
2187 fi
2188
2189 if check_func dlopen; then
2190     ldl=
2191 elif check_func dlopen -ldl; then
2192     ldl=-ldl
2193 fi
2194
2195 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2196 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2197
2198 check_func  fork
2199 check_func  gethrtime
2200 check_func  getrusage
2201 check_func  inet_aton $network_extralibs
2202 check_func  isatty
2203 check_func  memalign
2204 check_func  mkstemp
2205 check_func  posix_memalign
2206 check_func_headers io.h setmode
2207 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2208 check_func_headers windows.h GetProcessTimes
2209 check_func_headers windows.h VirtualAlloc
2210
2211 check_header conio.h
2212 check_header dlfcn.h
2213 check_header malloc.h
2214 check_header poll.h
2215 check_header sys/mman.h
2216 check_header sys/resource.h
2217 check_header sys/select.h
2218 check_header termios.h
2219 check_header vdpau/vdpau.h
2220 check_header vdpau/vdpau_x11.h
2221 check_header X11/extensions/XvMClib.h
2222
2223 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2224      enabled_any $need_memalign ; then
2225     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2226 fi
2227
2228 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2229 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2230
2231 # check for some common methods of building with pthread support
2232 # do this before the optional library checks as some of them require pthreads
2233 if enabled pthreads; then
2234     if check_func pthread_create; then
2235         :
2236     elif check_func pthread_create -pthread; then
2237         add_cflags -pthread
2238         add_extralibs -pthread
2239     elif check_func pthread_create -pthreads; then
2240         add_cflags -pthreads
2241         add_extralibs -pthreads
2242     elif check_func pthread_create -lpthreadGC2; then
2243         add_extralibs -lpthreadGC2
2244     elif ! check_lib pthread.h pthread_create -lpthread; then
2245         die "ERROR: can't find pthreads library"
2246     fi
2247 fi
2248
2249 for thread in $THREADS_LIST; do
2250     if enabled $thread; then
2251         test -n "$thread_type" &&
2252             die "ERROR: Only one thread type must be selected." ||
2253             thread_type="$thread"
2254     fi
2255 done
2256
2257 check_lib math.h sin -lm
2258 check_lib va/va.h vaInitialize -lva
2259
2260 check_func llrint
2261 check_func log2
2262 check_func lrint
2263 check_func lrintf
2264 check_func round
2265 check_func roundf
2266 check_func truncf
2267
2268 # these are off by default, so fail if requested and not available
2269 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2270 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2271                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2272                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2273 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2274 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2275 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2276 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2277 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2278 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2279 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2280 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2281 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2282                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2283 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2284 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2285 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2286 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2287                       { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2288                         die "ERROR: libx264 version must be >= 0.65."; }
2289 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2290 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2291
2292 # libdc1394 check
2293 if enabled libdc1394; then
2294     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2295         enable libdc1394_2; } ||
2296     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2297         enable libdc1394_1; } ||
2298     die "ERROR: No version of libdc1394 found "
2299 fi
2300
2301 disable sdl_too_old
2302 disable sdl
2303 SDL_CONFIG="${cross_prefix}sdl-config"
2304 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2305     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2306     temp_cflags $sdl_cflags
2307     temp_extralibs $("${SDL_CONFIG}" --libs)
2308     if check_lib2 SDL.h SDL_Init; then
2309         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2310         if test "$_sdlversion" -lt 121 ; then
2311             enable sdl_too_old
2312         else
2313             enable sdl
2314             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2315 #include <SDL.h>
2316 int main(int argc, char **argv){
2317     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2318     int w = vi->current_w;
2319     return 0;
2320 }
2321 EOF
2322         fi
2323     fi
2324     restore_flags
2325 fi
2326
2327 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2328
2329 if enabled network; then
2330     check_type "sys/types.h sys/socket.h" socklen_t
2331     # Prefer arpa/inet.h over winsock2
2332     if check_header arpa/inet.h ; then
2333         check_func closesocket
2334     elif check_header winsock2.h ; then
2335         check_func_headers winsock2.h closesocket -lws2 && \
2336             network_extralibs="-lws2" || \
2337         { check_func_headers winsock2.h closesocket -lws2_32 && \
2338             network_extralibs="-lws2_32"; }
2339         check_type ws2tcpip.h socklen_t
2340     else
2341         disable network
2342     fi
2343 fi
2344
2345 enabled_all network ipv6 && check_ld <<EOF || disable ipv6
2346 #include <sys/types.h>
2347 #include <sys/socket.h>
2348 #include <netinet/in.h>
2349 #include <netdb.h>
2350 int main(void) {
2351     struct sockaddr_storage saddr;
2352     struct ipv6_mreq mreq6;
2353     getaddrinfo(0,0,0,0);
2354     getnameinfo(0,0,0,0,0,0,0);
2355     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2356 }
2357 EOF
2358
2359 check_header linux/videodev.h
2360 check_header linux/videodev2.h
2361 check_header sys/videoio.h
2362
2363 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2364
2365 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2366 { check_header dev/bktr/ioctl_meteor.h &&
2367   check_header dev/bktr/ioctl_bt848.h; } ||
2368 { check_header machine/ioctl_meteor.h &&
2369   check_header machine/ioctl_bt848.h; } ||
2370 { check_header dev/video/meteor/ioctl_meteor.h &&
2371   check_header dev/video/bktr/ioctl_bt848.h; } ||
2372 check_header dev/ic/bt8xx.h
2373
2374 check_header sys/soundcard.h
2375 check_header soundcard.h
2376
2377 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2378
2379 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2380
2381 enabled x11grab                         &&
2382 check_header X11/Xlib.h                 &&
2383 check_header X11/extensions/XShm.h      &&
2384 check_func XOpenDisplay -lX11           &&
2385 check_func XShmCreateImage -lX11 -lXext
2386
2387 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2388
2389 # add some useful compiler flags if supported
2390 check_cflags -Wdeclaration-after-statement
2391 check_cflags -Wall
2392 check_cflags -Wno-switch
2393 check_cflags -Wdisabled-optimization
2394 check_cflags -Wpointer-arith
2395 check_cflags -Wredundant-decls
2396 check_cflags -Wno-pointer-sign
2397 check_cflags -Wcast-qual
2398 check_cflags -Wwrite-strings
2399 check_cflags -Wtype-limits
2400 check_cflags -Wundef
2401 enabled extra_warnings && check_cflags -Winline
2402
2403 # add some linker flags
2404 check_ldflags -Wl,--warn-common
2405 check_ldflags -Wl,--as-needed
2406 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2407 check_ldflags -Wl,-Bsymbolic
2408
2409 if enabled small; then
2410     check_cflags -Os            # not all compilers support -Os
2411     optimizations="small"
2412 elif enabled optimizations; then
2413     if enabled xlc; then
2414         add_cflags  -O5
2415         add_ldflags -O5
2416     elif enabled ccc; then
2417         add_cflags -fast
2418     else
2419         add_cflags -O3
2420     fi
2421 fi
2422 check_cflags -fno-math-errno
2423 check_cflags -fno-signed-zeros
2424
2425 if enabled icc; then
2426     # Just warnings, no remarks
2427     check_cflags -w1
2428     # -wd: Disable following warnings
2429     # 144, 167, 556: -Wno-pointer-sign
2430     # 10006: ignoring unknown option -fno-signed-zeros
2431     # 10156: ignoring option '-W'; no argument required
2432     check_cflags -wd144,167,556,10006,10156
2433     # 11030: Warning unknown option --as-needed
2434     # 10156: ignoring option '-export'; no argument required
2435     check_ldflags -wd10156,11030
2436     # Allow to compile with optimizations
2437     check_ldflags -march=$cpu
2438     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2439     enable ebp_available
2440 elif enabled ccc; then
2441     # disable some annoying warnings
2442     add_cflags -msg_disable cvtu32to64
2443     add_cflags -msg_disable embedcomment
2444     add_cflags -msg_disable needconstext
2445     add_cflags -msg_disable nomainieee
2446     add_cflags -msg_disable ptrmismatch1
2447     add_cflags -msg_disable unreachcode
2448 elif enabled gcc; then
2449     check_cflags -fno-tree-vectorize
2450 fi
2451
2452 if enabled gprof; then
2453     add_cflags  -p
2454     add_ldflags -p
2455 fi
2456
2457 # Find out if the .align argument is a power of two or not.
2458 check_asm asmalign_pot '".align 3"'
2459
2460 enabled_any $DECODER_LIST      && enable decoders
2461 enabled_any $ENCODER_LIST      && enable encoders
2462 enabled_any $HWACCEL_LIST      && enable hwaccels
2463 enabled_any $BSF_LIST          && enable bsfs
2464 enabled_any $DEMUXER_LIST      && enable demuxers
2465 enabled_any $MUXER_LIST        && enable muxers
2466 enabled_any $FILTER_LIST       && enable filters
2467 enabled_any $INDEV_LIST        && enable indevs
2468 enabled_any $OUTDEV_LIST       && enable outdevs
2469 enabled_any $PROTOCOL_LIST     && enable protocols
2470
2471 enabled_any $THREADS_LIST      && enable threads
2472
2473 check_deps $CONFIG_LIST       \
2474            $CONFIG_EXTRA      \
2475            $HAVE_LIST         \
2476            $DECODER_LIST      \
2477            $ENCODER_LIST      \
2478            $HWACCEL_LIST      \
2479            $PARSER_LIST       \
2480            $BSF_LIST          \
2481            $DEMUXER_LIST      \
2482            $MUXER_LIST        \
2483            $FILTER_LIST       \
2484            $INDEV_LIST        \
2485            $OUTDEV_LIST       \
2486            $PROTOCOL_LIST     \
2487
2488 echo "install prefix            $prefix"
2489 echo "source path               $source_path"
2490 echo "C compiler                $cc"
2491 echo ".align is power-of-two    $asmalign_pot"
2492 echo "ARCH                      $arch ($cpu)"
2493 if test "$build_suffix" != ""; then
2494     echo "build suffix              $build_suffix"
2495 fi
2496 if test "$extra_version" != ""; then
2497     echo "version string suffix     $extra_version"
2498 fi
2499 echo "big-endian                ${bigendian-no}"
2500 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2501 if enabled x86; then
2502     echo "yasm                      ${yasm-no}"
2503     echo "MMX enabled               ${mmx-no}"
2504     echo "MMX2 enabled              ${mmx2-no}"
2505     echo "3DNow! enabled            ${amd3dnow-no}"
2506     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2507     echo "SSE enabled               ${sse-no}"
2508     echo "SSSE3 enabled             ${ssse3-no}"
2509     echo "CMOV enabled              ${cmov-no}"
2510     echo "CMOV is fast              ${fast_cmov-no}"
2511     echo "EBX available             ${ebx_available-no}"
2512     echo "EBP available             ${ebp_available-no}"
2513     echo "10 operands supported     ${ten_operands-no}"
2514 fi
2515 if enabled arm; then
2516     echo "ARMv5TE enabled           ${armv5te-no}"
2517     echo "ARMv6 enabled             ${armv6-no}"
2518     echo "ARMv6T2 enabled           ${armv6t2-no}"
2519     echo "ARM VFP enabled           ${armvfp-no}"
2520     echo "IWMMXT enabled            ${iwmmxt-no}"
2521     echo "NEON enabled              ${neon-no}"
2522 fi
2523 if enabled mips; then
2524     echo "MMI enabled               ${mmi-no}"
2525 fi
2526 if enabled ppc; then
2527     echo "AltiVec enabled           ${altivec-no}"
2528     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2529     echo "dcbzl available           ${dcbzl-no}"
2530     echo "performance report        ${powerpc_perf-no}"
2531 fi
2532 if enabled sparc; then
2533     echo "VIS enabled               ${vis-no}"
2534 fi
2535 echo "gprof enabled             ${gprof-no}"
2536 echo "debug symbols             ${debug-no}"
2537 echo "strip symbols             ${stripping-no}"
2538 echo "optimizations             ${optimizations-no}"
2539 echo "static                    ${static-no}"
2540 echo "shared                    ${shared-no}"
2541 echo "postprocessing support    ${postproc-no}"
2542 echo "new filter support        ${avfilter-no}"
2543 echo "filters using lavformat   ${avfilter_lavf-no}"
2544 echo "network support           ${network-no}"
2545 if enabled network; then
2546     echo "IPv6 support              ${ipv6-no}"
2547 fi
2548 echo "threading support         ${thread_type-no}"
2549 echo "SDL support               ${sdl-no}"
2550 if enabled sdl_too_old; then
2551     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2552 fi
2553 echo "Sun medialib support      ${mlib-no}"
2554 echo "AVISynth enabled          ${avisynth-no}"
2555 echo "libdc1394 support         ${libdc1394-no}"
2556 echo "libdirac enabled          ${libdirac-no}"
2557 echo "libfaac enabled           ${libfaac-no}"
2558 echo "libfaad enabled           ${libfaad-no}"
2559 echo "libfaad dlopened          ${libfaadbin-no}"
2560 echo "libgsm enabled            ${libgsm-no}"
2561 echo "libmp3lame enabled        ${libmp3lame-no}"
2562 echo "libnut enabled            ${libnut-no}"
2563 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2564 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2565 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2566 echo "libschroedinger enabled   ${libschroedinger-no}"
2567 echo "libspeex enabled          ${libspeex-no}"
2568 echo "libtheora enabled         ${libtheora-no}"
2569 echo "libvorbis enabled         ${libvorbis-no}"
2570 echo "libx264 enabled           ${libx264-no}"
2571 echo "libxvid enabled           ${libxvid-no}"
2572 echo "zlib enabled              ${zlib-no}"
2573 echo "bzlib enabled             ${bzlib-no}"
2574 echo
2575
2576 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2577     echo "Enabled ${type}s:"
2578     eval list=\$$(toupper $type)_LIST
2579     for part in $list; do
2580         enabled $part && echo ${part%_*}
2581     done | sort | pr -3 -t
2582     echo
2583 done
2584
2585 license="LGPL version 2.1 or later"
2586 if enabled nonfree; then
2587     license="nonfree and unredistributable"
2588 elif enabled gplv3; then
2589     license="GPL version 3 or later"
2590 elif enabled lgplv3; then
2591     license="LGPL version 3 or later"
2592 elif enabled gpl; then
2593     license="GPL version 2 or later"
2594 fi
2595
2596 echo "License: $license"
2597
2598 echo "Creating config.mak and config.h..."
2599
2600 echo "# Automatically generated by configure - do not modify!" > config.mak
2601 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2602 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2603 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2604 echo "#define FFMPEG_CONFIGURATION \"$(c_escape $FFMPEG_CONFIGURATION)\"" >> $TMPH
2605 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2606
2607 echo "ifndef FFMPEG_CONFIG_MAK" >> config.mak
2608 echo "FFMPEG_CONFIG_MAK=1" >> config.mak
2609
2610 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2611 echo "prefix=$prefix" >> config.mak
2612 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2613 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2614 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2615 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2616 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2617 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2618 echo "SRC_PATH=\"$source_path\"" >> config.mak
2619 echo "SRC_PATH_BARE=$source_path" >> config.mak
2620 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2621 echo "CC=$cc" >> config.mak
2622 echo "AS=$as" >> config.mak
2623 echo "LD=$ld" >> config.mak
2624 echo "DEPCC=$dep_cc" >> config.mak
2625 echo "YASM=$yasmexe" >> config.mak
2626 echo "AR=$ar" >> config.mak
2627 echo "RANLIB=$ranlib" >> config.mak
2628 echo "LN_S=$ln_s" >> config.mak
2629 enabled stripping &&
2630     echo "STRIP=$strip" >> config.mak ||
2631     echo "STRIP=echo ignoring strip" >> config.mak
2632
2633 echo "CPPFLAGS=$CPPFLAGS" >> config.mak
2634 echo "CFLAGS=$CFLAGS" >> config.mak
2635 echo "ASFLAGS=$ASFLAGS" >> config.mak
2636 echo "CC_O=$CC_O" >> config.mak
2637 echo "LDFLAGS=$LDFLAGS" >> config.mak
2638 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2639 echo "SHFLAGS=$SHFLAGS" >> config.mak
2640 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2641 echo "BUILDSUF=$build_suffix" >> config.mak
2642 echo "FULLNAME=$FULLNAME" >> config.mak
2643 echo "LIBPREF=$LIBPREF" >> config.mak
2644 echo "LIBSUF=$LIBSUF" >> config.mak
2645 echo "LIBNAME=$LIBNAME" >> config.mak
2646 echo "SLIBPREF=$SLIBPREF" >> config.mak
2647 echo "SLIBSUF=$SLIBSUF" >> config.mak
2648 echo "EXESUF=$EXESUF" >> config.mak
2649 echo "EXTRA_VERSION=$extra_version" >> config.mak
2650 echo "DEPFLAGS=$DEPFLAGS" >> config.mak
2651 echo "CCDEP=$CCDEP" >> config.mak
2652 echo "ASDEP=$ASDEP" >> config.mak
2653 echo "CC_DEPFLAGS=$CC_DEPFLAGS" >> config.mak
2654 echo "AS_DEPFLAGS=$AS_DEPFLAGS" >> config.mak
2655 echo "HOSTCC=$host_cc" >> config.mak
2656 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2657 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2658 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2659 echo "HOSTLIBS=$host_libs" >> config.mak
2660 echo "TARGET_EXEC=$target_exec" >> config.mak
2661 echo "TARGET_PATH=$target_path" >> config.mak
2662
2663 if enabled sdl; then
2664     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2665     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2666 fi
2667 if enabled texi2html; then
2668     echo "BUILD_DOC=yes" >> config.mak
2669 fi
2670
2671 get_version(){
2672     name=$1
2673     file=$source_path/$2
2674     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2675     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2676     lcname=$(tolower $name)
2677     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2678     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2679 }
2680
2681 get_version LIBSWSCALE  libswscale/swscale.h
2682 get_version LIBPOSTPROC libpostproc/postprocess.h
2683 get_version LIBAVCODEC  libavcodec/avcodec.h
2684 get_version LIBAVDEVICE libavdevice/avdevice.h
2685 get_version LIBAVFORMAT libavformat/avformat.h
2686 get_version LIBAVUTIL   libavutil/avutil.h
2687 get_version LIBAVFILTER libavfilter/avfilter.h
2688
2689 if enabled shared; then
2690     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2691     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2692     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2693     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2694     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2695     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2696     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2697     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2698 fi
2699 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2700 echo "EXTRALIBS=$extralibs" >> config.mak
2701
2702 echo "ARCH=$arch" >> config.mak
2703
2704 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2705 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2706 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2707                                       $CONFIG_EXTRA      \
2708                                       $DECODER_LIST      \
2709                                       $ENCODER_LIST      \
2710                                       $HWACCEL_LIST      \
2711                                       $PARSER_LIST       \
2712                                       $BSF_LIST          \
2713                                       $DEMUXER_LIST      \
2714                                       $MUXER_LIST        \
2715                                       $FILTER_LIST       \
2716                                       $PROTOCOL_LIST     \
2717                                       $INDEV_LIST        \
2718                                       $OUTDEV_LIST       \
2719
2720 echo "#define restrict $_restrict" >> $TMPH
2721
2722 if enabled small || disabled optimizations; then
2723     echo "#define av_always_inline"  >> $TMPH
2724 fi
2725
2726
2727 # Apparently it's not possible to portably echo a backslash.
2728 enabled asmalign_pot &&
2729     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2730     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2731
2732 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2733
2734 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2735 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
2736
2737 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2738 cmp -s $TMPH config.h &&
2739     echo "config.h is unchanged" ||
2740     mv -f $TMPH config.h
2741
2742 # build tree in object directory if source path is different from current one
2743 if enabled source_path_used; then
2744     DIRS="\
2745         doc               \
2746         libavcodec        \
2747         libavcodec/$arch  \
2748         libavdevice       \
2749         libavfilter       \
2750         libavformat       \
2751         libavutil         \
2752         libavutil/$arch   \
2753         libpostproc       \
2754         libswscale        \
2755         libswscale/$arch  \
2756         tests             \
2757         tools             \
2758         "
2759     FILES="\
2760         Makefile             \
2761         common.mak           \
2762         subdir.mak           \
2763         doc/texi2pod.pl      \
2764         libavcodec/Makefile  \
2765         libavdevice/Makefile \
2766         libavfilter/Makefile \
2767         libavformat/Makefile \
2768         libavutil/Makefile   \
2769         libpostproc/Makefile \
2770         libswscale/Makefile  \
2771         "
2772     for dir in $DIRS ; do
2773         mkdir -p $dir
2774     done
2775     for f in $FILES ; do
2776         $ln_s "$source_path/$f" $f
2777     done
2778 fi
2779
2780
2781 # build pkg-config files
2782
2783 pkgconfig_generate(){
2784 name=$1
2785 shortname=${name#lib}${build_suffix}
2786 comment=$2
2787 version=$3
2788 libs=$4
2789 requires=$5
2790 cat <<EOF > $name/$name.pc
2791 prefix=$prefix
2792 exec_prefix=\${prefix}
2793 libdir=$libdir
2794 includedir=$incdir
2795
2796 Name: $name
2797 Description: $comment
2798 Version: $version
2799 Requires: $(enabled shared || echo $requires)
2800 Requires.private: $(enabled shared && echo $requires)
2801 Conflicts:
2802 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
2803 Libs.private: $(enabled shared && echo $libs)
2804 Cflags: -I\${includedir}
2805 EOF
2806 cat <<EOF > $name/$name-uninstalled.pc
2807 prefix=
2808 exec_prefix=
2809 libdir=\${pcfiledir}
2810 includedir=${source_path}
2811
2812 Name: $name
2813 Description: $comment
2814 Version: $version
2815 Requires: $requires
2816 Conflicts:
2817 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2818 Cflags: -I\${includedir}
2819 EOF
2820 }
2821
2822 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2823 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2824 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2825 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2826 enabled avfilter &&
2827     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2828 enabled postproc &&
2829     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2830 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"