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     disable $name
 576     check_as "$@" <<EOF && enable $name
 577 void foo(void){ __asm__ volatile($asm); }
 578 EOF
 579 }
 580
 581 check_yasm(){
 582     log check_yasm "$@"
 583     echo "$1" > $TMPS
 584     log_file $TMPS
 585     shift 1
 586     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 587 }
 588
 589 check_ld(){
 590     log check_ld "$@"
 591     check_cc || return
 592     flags=''
 593     libs=''
 594     for f; do
 595         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 596     done
 597     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 598 }
 599
 600 check_cppflags(){
 601     log check_cppflags "$@"
 602     set -- $($filter_cppflags "$@")
 603     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 604 int x;
 605 EOF
 606 }
 607
 608 check_cflags(){
 609     log check_cflags "$@"
 610     set -- $($filter_cflags "$@")
 611     check_cc "$@" <<EOF && append CFLAGS "$@"
 612 int x;
 613 EOF
 614 }
 615
 616 check_ldflags(){
 617     log check_ldflags "$@"
 618     check_ld "$@" <<EOF && add_ldflags "$@"
 619 int main(void){ return 0; }
 620 EOF
 621 }
 622
 623 check_header(){
 624     log check_header "$@"
 625     header=$1
 626     shift
 627     disable_safe $header
 628     check_cpp "$@" <<EOF && enable_safe $header
 629 #include <$header>
 630 int x;
 631 EOF
 632 }
 633
 634 check_func(){
 635     log check_func "$@"
 636     func=$1
 637     shift
 638     disable $func
 639     check_ld "$@" <<EOF && enable $func
 640 extern int $func();
 641 int main(void){ $func(); }
 642 EOF
 643 }
 644
 645 check_func_headers(){
 646     log check_func_headers "$@"
 647     headers=$1
 648     func=$2
 649     shift 2
 650     disable $func
 651     incs=""
 652     for hdr in $headers; do
 653         incs="$incs
 654 #include <$hdr>"
 655     done
 656     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 657 $incs
 658 int main(int argc, char **argv){
 659     return (long) $func;
 660 }
 661 EOF
 662 }
 663
 664 check_cpp_condition(){
 665     log check_cpp_condition "$@"
 666     header=$1
 667     condition=$2
 668     check_cpp <<EOF
 669 #include <$header>
 670 #if !($condition)
 671 #error "unsatisfied condition: $condition"
 672 #endif
 673 EOF
 674 }
 675
 676 check_lib(){
 677     log check_lib "$@"
 678     header="$1"
 679     func="$2"
 680     shift 2
 681     temp_extralibs "$@"
 682     check_header $header && check_func $func && add_extralibs "$@"
 683     err=$?
 684     restore_flags
 685     return $err
 686 }
 687
 688 check_lib2(){
 689     log check_lib2 "$@"
 690     headers="$1"
 691     func="$2"
 692     shift 2
 693     temp_extralibs "$@"
 694     check_func_headers "$headers" $func && add_extralibs "$@"
 695     err=$?
 696     restore_flags
 697     return $err
 698 }
 699
 700 check_exec(){
 701     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 702 }
 703
 704 check_exec_crash(){
 705     code=$(cat)
 706
 707     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 708     # are safe but may not be available everywhere.  Thus we use
 709     # raise(SIGTERM) instead.  The check is run in a subshell so we
 710     # can redirect the "Terminated" message from the shell.  SIGBUS
 711     # is not defined by standard C so it is used conditionally.
 712
 713     (check_exec "$@") >> $logfile 2>&1 <<EOF
 714 #include <signal.h>
 715 static void sighandler(int sig){
 716     raise(SIGTERM);
 717 }
 718 int main(void){
 719     signal(SIGILL, sighandler);
 720     signal(SIGFPE, sighandler);
 721     signal(SIGSEGV, sighandler);
 722 #ifdef SIGBUS
 723     signal(SIGBUS, sighandler);
 724 #endif
 725     { $code }
 726 }
 727 EOF
 728 }
 729
 730 check_type(){
 731     log check_type "$@"
 732     headers=$1
 733     type=$2
 734     shift 2
 735     disable $type
 736     incs=""
 737     for hdr in $headers; do
 738         incs="$incs
 739 #include <$hdr>"
 740     done
 741     check_cc "$@" <<EOF && enable $type
 742 $incs
 743 $type v;
 744 EOF
 745 }
 746
 747 require(){
 748     name="$1"
 749     header="$2"
 750     func="$3"
 751     shift 3
 752     check_lib $header $func "$@" || die "ERROR: $name not found"
 753 }
 754
 755 require2(){
 756     name="$1"
 757     headers="$2"
 758     func="$3"
 759     shift 3
 760     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 761 }
 762
 763 check_foo_config(){
 764     cfg=$1
 765     pkg=$2
 766     header=$3
 767     func=$4
 768     shift 4
 769     disable $cfg
 770     check_cmd ${pkg}-config --version
 771     err=$?
 772     if test "$err" = 0; then
 773         temp_cflags $(${pkg}-config --cflags)
 774         temp_extralibs $(${pkg}-config --libs)
 775         check_lib "$@" $header $func && enable $cfg
 776     fi
 777     return $err
 778 }
 779
 780 apply(){
 781     file=$1
 782     shift
 783     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 784 }
 785
 786 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 787 # system-dependent things.
 788
 789 COMPONENT_LIST="
 790     bsfs
 791     decoders
 792     demuxers
 793     encoders
 794     filters
 795     hwaccels
 796     indevs
 797     muxers
 798     outdevs
 799     parsers
 800     protocols
 801 "
 802
 803 CONFIG_LIST="
 804     $COMPONENT_LIST
 805     aandct
 806     avfilter
 807     avfilter_lavf
 808     avisynth
 809     beos_netserver
 810     bzlib
 811     fastdiv
 812     ffmpeg
 813     ffplay
 814     ffserver
 815     fft
 816     golomb
 817     gpl
 818     gprof
 819     gray
 820     hardcoded_tables
 821     ipv6
 822     libdc1394
 823     libdirac
 824     libfaac
 825     libfaad
 826     libfaadbin
 827     libgsm
 828     libmp3lame
 829     libnut
 830     libopencore_amrnb
 831     libopencore_amrwb
 832     libopenjpeg
 833     libschroedinger
 834     libspeex
 835     libtheora
 836     libvorbis
 837     libx264
 838     libxvid
 839     mdct
 840     memalign_hack
 841     mlib
 842     mpegaudio_hp
 843     network
 844     nonfree
 845     pic
 846     postproc
 847     powerpc_perf
 848     rdft
 849     runtime_cpudetect
 850     shared
 851     small
 852     static
 853     swscale_alpha
 854     vaapi
 855     vdpau
 856     version3
 857     x11grab
 858     zlib
 859 "
 860
 861 THREADS_LIST='
 862     beosthreads
 863     os2threads
 864     pthreads
 865     w32threads
 866 '
 867
 868 ARCH_LIST='
 869     alpha
 870     arm
 871     avr32
 872     avr32_ap
 873     avr32_uc
 874     bfin
 875     ia64
 876     m68k
 877     mips
 878     mips64
 879     parisc
 880     ppc
 881     ppc64
 882     s390
 883     sh4
 884     sparc
 885     sparc64
 886     x86
 887     x86_32
 888     x86_64
 889 '
 890
 891 ARCH_EXT_LIST='
 892     altivec
 893     amd3dnow
 894     amd3dnowext
 895     armv5te
 896     armv6
 897     armv6t2
 898     armvfp
 899     iwmmxt
 900     mmi
 901     mmx
 902     mmx2
 903     neon
 904     ppc4xx
 905     sse
 906     ssse3
 907     vis
 908 '
 909
 910 HAVE_LIST="
 911     $ARCH_EXT_LIST
 912     $THREADS_LIST
 913     alsa_asoundlib_h
 914     altivec_h
 915     arpa_inet_h
 916     attribute_packed
 917     bigendian
 918     bswap
 919     closesocket
 920     cmov
 921     conio_h
 922     dcbzl
 923     dev_bktr_ioctl_bt848_h
 924     dev_bktr_ioctl_meteor_h
 925     dev_ic_bt8xx_h
 926     dev_video_meteor_ioctl_meteor_h
 927     dev_video_bktr_ioctl_bt848_h
 928     dlfcn_h
 929     dlopen
 930     dos_paths
 931     ebp_available
 932     ebx_available
 933     fast_64bit
 934     fast_cmov
 935     fast_unaligned
 936     fork
 937     gethrtime
 938     GetProcessTimes
 939     getrusage
 940     inet_aton
 941     inline_asm
 942     isatty
 943     ldbrx
 944     libdc1394_1
 945     libdc1394_2
 946     llrint
 947     log2
 948     loongson
 949     lrint
 950     lrintf
 951     lzo1x_999_compress
 952     machine_ioctl_bt848_h
 953     machine_ioctl_meteor_h
 954     malloc_h
 955     memalign
 956     mkstemp
 957     pld
 958     posix_memalign
 959     round
 960     roundf
 961     sdl
 962     sdl_video_size
 963     setmode
 964     socklen_t
 965     soundcard_h
 966     poll_h
 967     sys_mman_h
 968     sys_resource_h
 969     sys_select_h
 970     sys_soundcard_h
 971     sys_videoio_h
 972     ten_operands
 973     termios_h
 974     threads
 975     truncf
 976     vfp_args
 977     VirtualAlloc
 978     winsock2_h
 979     xform_asm
 980     yasm
 981 "
 982
 983 # options emitted with CONFIG_ prefix but not available on command line
 984 CONFIG_EXTRA="
 985     gplv3
 986     lgplv3
 987 "
 988
 989 CMDLINE_SELECT="
 990     $ARCH_EXT_LIST
 991     $CONFIG_LIST
 992     $THREADS_LIST
 993     cross_compile
 994     debug
 995     extra_warnings
 996     logging
 997     optimizations
 998     stripping
 999     yasm
1000 "
1001
1002 PATHS_LIST='
1003     bindir
1004     datadir
1005     incdir
1006     libdir
1007     mandir
1008     prefix
1009     shlibdir
1010 '
1011
1012 CMDLINE_SET="
1013     $PATHS_LIST
1014     arch
1015     as
1016     build_suffix
1017     cc
1018     cpu
1019     cross_prefix
1020     dep_cc
1021     extra_version
1022     host_cc
1023     host_cflags
1024     host_ldflags
1025     host_libs
1026     host_os
1027     ld
1028     logfile
1029     nm
1030     source_path
1031     sysinclude
1032     sysroot
1033     target_exec
1034     target_os
1035     target_path
1036 "
1037
1038 CMDLINE_APPEND="
1039     extra_cflags
1040 "
1041
1042 # code dependency declarations
1043
1044 # architecture extensions
1045 altivec_deps="ppc"
1046 amd3dnow_deps="mmx"
1047 amd3dnowext_deps="amd3dnow"
1048 armv5te_deps="arm"
1049 armv6_deps="arm"
1050 armv6t2_deps="arm"
1051 armvfp_deps="arm"
1052 iwmmxt_deps="arm"
1053 mmi_deps="mips"
1054 mmx_deps="x86"
1055 mmx2_deps="mmx"
1056 neon_deps="arm"
1057 ppc4xx_deps="ppc"
1058 sse_deps="mmx"
1059 ssse3_deps="sse"
1060 vis_deps="sparc"
1061
1062 need_memalign="altivec neon sse"
1063 inline_asm_deps="!tms470"
1064
1065 # decoders / encoders / hardware accelerators
1066 aac_decoder_select="fft mdct"
1067 aac_encoder_select="fft mdct"
1068 ac3_decoder_select="fft mdct"
1069 atrac3_decoder_select="fft mdct"
1070 cavs_decoder_select="golomb"
1071 cook_decoder_select="fft mdct"
1072 cscd_decoder_suggest="zlib"
1073 dca_decoder_select="fft mdct"
1074 dnxhd_encoder_select="aandct"
1075 dxa_decoder_select="zlib"
1076 eac3_decoder_select="ac3_decoder"
1077 eamad_decoder_select="aandct"
1078 eatgq_decoder_select="aandct"
1079 eatqi_decoder_select="aandct"
1080 ffv1_decoder_select="golomb"
1081 flac_decoder_select="golomb"
1082 flac_encoder_select="golomb"
1083 flashsv_decoder_select="zlib"
1084 flashsv_encoder_select="zlib"
1085 flv_encoder_select="h263_encoder"
1086 h261_encoder_select="aandct"
1087 h263_encoder_select="aandct"
1088 h263_vaapi_hwaccel_deps="va_va_h"
1089 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1090 h263p_encoder_select="h263_encoder"
1091 h264_decoder_select="golomb"
1092 h264_vaapi_hwaccel_deps="va_va_h"
1093 h264_vaapi_hwaccel_select="vaapi"
1094 h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1095 h264_vdpau_decoder_select="vdpau h264_decoder"
1096 imc_decoder_select="fft mdct"
1097 jpegls_decoder_select="golomb"
1098 jpegls_encoder_select="golomb"
1099 ljpeg_encoder_select="aandct"
1100 loco_decoder_select="golomb"
1101 mjpeg_encoder_select="aandct"
1102 mpeg1video_encoder_select="aandct"
1103 mpeg2video_encoder_select="aandct"
1104 mpeg4_encoder_select="h263_encoder"
1105 mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1106 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1107 mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1108 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1109 mpeg2_vaapi_hwaccel_deps="va_va_h"
1110 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1111 mpeg4_vaapi_hwaccel_deps="va_va_h"
1112 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1113 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1114 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1115 msmpeg4v1_encoder_select="h263_encoder"
1116 msmpeg4v2_encoder_select="h263_encoder"
1117 msmpeg4v3_encoder_select="h263_encoder"
1118 nellymoser_decoder_select="fft mdct"
1119 nellymoser_encoder_select="fft mdct"
1120 png_decoder_select="zlib"
1121 png_encoder_select="zlib"
1122 qdm2_decoder_select="fft mdct rdft"
1123 rv10_encoder_select="h263_encoder"
1124 rv20_encoder_select="h263_encoder"
1125 rv30_decoder_select="golomb"
1126 rv40_decoder_select="golomb"
1127 shorten_decoder_select="golomb"
1128 sonic_decoder_select="golomb"
1129 sonic_encoder_select="golomb"
1130 sonic_ls_encoder_select="golomb"
1131 svq3_decoder_select="golomb"
1132 svq3_decoder_suggest="zlib"
1133 theora_decoder_select="vp3_decoder"
1134 tiff_decoder_suggest="zlib"
1135 tiff_encoder_suggest="zlib"
1136 tscc_decoder_select="zlib"
1137 vc1_vaapi_hwaccel_deps="va_va_h"
1138 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1139 vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1140 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1141 vorbis_decoder_select="fft mdct"
1142 vorbis_encoder_select="fft mdct"
1143 vp6a_decoder_select="vp6_decoder"
1144 vp6f_decoder_select="vp6_decoder"
1145 wmav1_decoder_select="fft mdct"
1146 wmav1_encoder_select="fft mdct"
1147 wmav2_decoder_select="fft mdct"
1148 wmav2_encoder_select="fft mdct"
1149 wmv1_encoder_select="h263_encoder"
1150 wmv2_encoder_select="h263_encoder"
1151 wmv3_decoder_select="vc1_decoder"
1152 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1153 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1154 zlib_decoder_select="zlib"
1155 zlib_encoder_select="zlib"
1156 zmbv_decoder_select="zlib"
1157 zmbv_encoder_select="zlib"
1158
1159 # parsers
1160 h264_parser_select="golomb"
1161
1162 # external libraries
1163 libdirac_decoder_deps="libdirac !libschroedinger"
1164 libdirac_encoder_deps="libdirac"
1165 libfaac_encoder_deps="libfaac"
1166 libfaad_decoder_deps="libfaad"
1167 libfaadbin_decoder_extralibs='$ldl'
1168 libgsm_decoder_deps="libgsm"
1169 libgsm_encoder_deps="libgsm"
1170 libgsm_ms_decoder_deps="libgsm"
1171 libgsm_ms_encoder_deps="libgsm"
1172 libmp3lame_encoder_deps="libmp3lame"
1173 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1174 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1175 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1176 libopenjpeg_decoder_deps="libopenjpeg"
1177 libschroedinger_decoder_deps="libschroedinger"
1178 libschroedinger_encoder_deps="libschroedinger"
1179 libspeex_decoder_deps="libspeex"
1180 libtheora_encoder_deps="libtheora"
1181 libvorbis_encoder_deps="libvorbis"
1182 libx264_encoder_deps="libx264"
1183 libxvid_encoder_deps="libxvid"
1184
1185 # demuxers / muxers
1186 ac3_demuxer_deps="ac3_parser"
1187 asf_stream_muxer_select="asf_muxer"
1188 avisynth_demuxer_deps="avisynth"
1189 dirac_demuxer_deps="dirac_parser"
1190 ipod_muxer_select="mov_muxer"
1191 libnut_demuxer_deps="libnut"
1192 libnut_muxer_deps="libnut"
1193 matroska_audio_muxer_select="matroska_muxer"
1194 matroska_demuxer_suggest="zlib bzlib"
1195 mov_demuxer_suggest="zlib"
1196 mp3_demuxer_deps="mpegaudio_parser"
1197 mp4_muxer_select="mov_muxer"
1198 mpegtsraw_demuxer_select="mpegts_demuxer"
1199 mxf_d10_muxer_select="mxf_muxer"
1200 psp_muxer_select="mov_muxer"
1201 redir_demuxer_deps="network"
1202 rtp_muxer_deps="network rtp_protocol"
1203 rtsp_demuxer_deps="sdp_demuxer"
1204 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1205 tg2_muxer_select="mov_muxer"
1206 tgp_muxer_select="mov_muxer"
1207 w64_demuxer_deps="wav_demuxer"
1208
1209 # indevs / outdevs
1210 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1211 alsa_indev_extralibs="-lasound"
1212 alsa_outdev_deps="alsa_asoundlib_h"
1213 alsa_outdev_extralibs="-lasound"
1214 audio_beos_indev_deps="audio_beos"
1215 audio_beos_indev_extralibs="-lmedia -lbe"
1216 audio_beos_outdev_deps="audio_beos"
1217 audio_beos_outdev_extralibs="-lmedia -lbe"
1218 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1219 dv1394_indev_deps="dv1394 dv_demuxer"
1220 jack_indev_deps="jack_jack_h"
1221 jack_indev_extralibs="-ljack"
1222 libdc1394_indev_deps="libdc1394"
1223 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1224 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1225 v4l_indev_deps="linux_videodev_h"
1226 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1227 vfwcap_indev_deps="capCreateCaptureWindow"
1228 vfwcap_indev_extralibs="-lvfw32"
1229 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1230 x11_grab_device_indev_extralibs="-lX11 -lXext"
1231
1232 # protocols
1233 gopher_protocol_deps="network"
1234 http_protocol_deps="network"
1235 rtmp_protocol_deps="tcp_protocol"
1236 rtp_protocol_deps="udp_protocol"
1237 tcp_protocol_deps="network"
1238 udp_protocol_deps="network"
1239
1240 # filters
1241 movie_filter_deps="avfilter_lavf"
1242
1243 # programs
1244 ffplay_deps="sdl"
1245 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1246 ffserver_extralibs='$ldl'
1247
1248
1249 # default parameters
1250
1251 logfile="config.err"
1252
1253 # installation paths
1254 prefix_default="/usr/local"
1255 bindir_default='${prefix}/bin'
1256 datadir_default='${prefix}/share/ffmpeg'
1257 incdir_default='${prefix}/include'
1258 libdir_default='${prefix}/lib'
1259 mandir_default='${prefix}/share/man'
1260 shlibdir_default="$libdir_default"
1261
1262 # toolchain
1263 ar="ar"
1264 cc_default="gcc"
1265 cc_version=\"unknown\"
1266 host_cc_default="gcc"
1267 ln_s="ln -sf"
1268 nm_default="nm"
1269 objformat="elf"
1270 ranlib="ranlib"
1271 strip="strip"
1272 yasmexe="yasm"
1273
1274 # machine
1275 arch=$(uname -m)
1276 cpu="generic"
1277
1278 # OS
1279 target_os=$(tolower $(uname -s))
1280 host_os=$target_os
1281
1282 # configurable options
1283 enable debug
1284 enable fastdiv
1285 enable ffmpeg
1286 enable ffplay
1287 enable ffserver
1288 enable ipv6
1289 enable mpegaudio_hp
1290 enable network
1291 enable optimizations
1292 enable protocols
1293 enable static
1294 enable stripping
1295 enable swscale_alpha
1296
1297 # build settings
1298 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1299 FFSERVERLDFLAGS=-Wl,-E
1300 LIBPREF="lib"
1301 LIBSUF=".a"
1302 FULLNAME='$(NAME)$(BUILDSUF)'
1303 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1304 SLIBPREF="lib"
1305 SLIBSUF=".so"
1306 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1307 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1308 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1309 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1310
1311 CC_O='-o $@'
1312
1313 host_cflags='-O3 -g -Wall'
1314 host_libs='-lm'
1315
1316 target_path='.'
1317
1318 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1319 # full relative path for objects in subdirectories for non-recursive Make.
1320 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1321 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1322
1323 # find source path
1324 source_path="$(dirname "$0")"
1325 enable source_path_used
1326 if test -f configure; then
1327     source_path="$(pwd)"
1328     disable source_path_used
1329 else
1330     source_path="$(cd "$source_path"; pwd)"
1331     echo "$source_path" | grep -q '[[:blank:]]' &&
1332         die "Out of tree builds are impossible with whitespace in source path."
1333     test -e "$source_path/config.h" &&
1334         die "Out of tree builds are impossible with config.h in source dir."
1335 fi
1336
1337 for v in "$@"; do
1338     r=${v#*=}
1339     l=${v%"$r"}
1340     r=$(sh_quote "$r")
1341     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1342 done
1343
1344 find_things(){
1345     thing=$1
1346     pattern=$2
1347     file=$source_path/$3
1348     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1349 }
1350
1351 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1352 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1353 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1354 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1355 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1356 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1357 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1358 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1359 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1360 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1361 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1362
1363 enable $ARCH_EXT_LIST \
1364        $DECODER_LIST \
1365        $ENCODER_LIST \
1366        $HWACCEL_LIST \
1367        $PARSER_LIST \
1368        $BSF_LIST \
1369        $DEMUXER_LIST \
1370        $MUXER_LIST \
1371        $FILTER_LIST \
1372        $PROTOCOL_LIST \
1373        $INDEV_LIST \
1374        $OUTDEV_LIST \
1375
1376 die_unknown(){
1377     echo "Unknown option \"$1\"."
1378     echo "See $0 --help for available options."
1379     exit 1
1380 }
1381
1382 show_list() {
1383     suffix=_$1
1384     shift
1385     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1386     exit 0
1387 }
1388
1389 for opt do
1390     optval="${opt#*=}"
1391     case "$opt" in
1392     --extra-ldflags=*) add_ldflags $optval
1393     ;;
1394     --extra-libs=*) add_extralibs $optval
1395     ;;
1396     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1397     ;;
1398     --enable-debug=*) debuglevel="$optval"
1399     ;;
1400     --enable-*=*|--disable-*=*)
1401     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1402     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1403     eval list=\$$(toupper $thing)_LIST
1404     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1405     $action $(filter "$name" $list)
1406     ;;
1407     --enable-?*|--disable-?*)
1408     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1409     if is_in $option $COMPONENT_LIST; then
1410         test $action = disable && action=unset
1411         eval $action \$$(toupper ${option%s})_LIST
1412     elif is_in $option $CMDLINE_SELECT; then
1413         $action $option
1414     else
1415         die_unknown $opt
1416     fi
1417     ;;
1418     --list-*)
1419         NAME="${opt#--list-}"
1420         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1421         NAME=${NAME%s}
1422         eval show_list $NAME \$$(toupper $NAME)_LIST
1423     ;;
1424     --help|-h) show_help
1425     ;;
1426     *)
1427     optname="${opt%%=*}"
1428     optname="${optname#--}"
1429     optname=$(echo "$optname" | sed 's/-/_/g')
1430     if is_in $optname $CMDLINE_SET; then
1431         eval $optname='$optval'
1432     elif is_in $optname $CMDLINE_APPEND; then
1433         append $optname "$optval"
1434     else
1435          die_unknown $opt
1436     fi
1437     ;;
1438     esac
1439 done
1440
1441 disabled logging && logfile=/dev/null
1442
1443 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1444 set >> $logfile
1445
1446 test -n "$cross_prefix" && enable cross_compile
1447
1448 ar="${cross_prefix}${ar}"
1449 cc_default="${cross_prefix}${cc_default}"
1450 nm_default="${cross_prefix}${nm_default}"
1451 ranlib="${cross_prefix}${ranlib}"
1452 strip="${cross_prefix}${strip}"
1453
1454 sysinclude_default="${sysroot}/usr/include"
1455
1456 set_default cc nm sysinclude
1457 enabled cross_compile || host_cc_default=$cc
1458 set_default host_cc
1459
1460 exesuf() {
1461     case $1 in
1462         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1463     esac
1464 }
1465
1466 EXESUF=$(exesuf $target_os)
1467 HOSTEXESUF=$(exesuf $host_os)
1468
1469 # set temporary file name
1470 : ${TMPDIR:=$TEMPDIR}
1471 : ${TMPDIR:=$TMP}
1472 : ${TMPDIR:=/tmp}
1473
1474 if ! check_cmd type mktemp; then
1475     # simple replacement for missing mktemp
1476     # NOT SAFE FOR GENERAL USE
1477     mktemp(){
1478         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1479     }
1480 fi
1481
1482 tmpfile(){
1483     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1484         (set -C; exec > $tmp) 2>/dev/null ||
1485         die "Unable to create temporary file in $TMPDIR."
1486     append TMPFILES $tmp
1487     eval $1=$tmp
1488 }
1489
1490 trap 'rm -f -- $TMPFILES' EXIT
1491 trap exit HUP INT TERM
1492
1493 tmpfile TMPC  .c
1494 tmpfile TMPE  $EXESUF
1495 tmpfile TMPH  .h
1496 tmpfile TMPO  .o
1497 tmpfile TMPS  .S
1498 tmpfile TMPSH .sh
1499
1500 unset -f mktemp
1501
1502 # make sure we can execute files in $TMPDIR
1503 cat > $TMPSH 2>> $logfile <<EOF
1504 #! /bin/sh
1505 EOF
1506 chmod +x $TMPSH >> $logfile 2>&1
1507 if ! $TMPSH >> $logfile 2>&1; then
1508     cat <<EOF
1509 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1510 variable to another directory and make sure that it is not mounted noexec.
1511 EOF
1512     die "Sanity test failed."
1513 fi
1514
1515 filter_cflags=echo
1516 filter_cppflags=echo
1517 filter_asflags=echo
1518
1519 if   $cc -v 2>&1 | grep -qi ^gcc; then
1520     cc_type=gcc
1521     cc_version=__VERSION__
1522     if ! $cc -dumpversion | grep -q '^2\.'; then
1523         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1524         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1525     fi
1526 elif $cc --version 2>/dev/null | grep -q Intel; then
1527     cc_type=icc
1528     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1529     CC_DEPFLAGS='-MMD'
1530     AS_DEPFLAGS='-MMD'
1531 elif $cc -v 2>&1 | grep -q xlc; then
1532     cc_type=xlc
1533     cc_version="AV_STRINGIFY(__IBMC__)"
1534 elif $cc -V 2>/dev/null | grep -q Compaq; then
1535     cc_type=ccc
1536     cc_version="AV_STRINGIFY(__DECC_VER)"
1537     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1538     debuglevel=3
1539     add_ldflags -Wl,-z,now # calls to libots crash without this
1540 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1541     test -d "$sysroot" || die "No valid sysroot specified."
1542     cc_type=armcc
1543     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1544     armcc_conf="$PWD/armcc.conf"
1545     $cc --arm_linux_configure                 \
1546         --arm_linux_config_file="$armcc_conf" \
1547         --configure_sysroot="$sysroot"        \
1548         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1549         die "Error creating armcc configuration file."
1550     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1551     as_default="${cross_prefix}gcc"
1552     CC_DEPFLAGS='-MMD'
1553     AS_DEPFLAGS='-MMD'
1554 elif $cc -version 2>/dev/null | grep -q TMS470; then
1555     cc_type=tms470
1556     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1557     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1558     CC_O='-fr=$(@D)'
1559     as_default="${cross_prefix}gcc"
1560     ld_default="${cross_prefix}gcc"
1561     TMPO=$(basename $TMPC .c).o
1562     append TMPFILES $TMPO
1563     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1564     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1565     AS_DEPFLAGS='-MMD'
1566     filter_cflags=tms470_flags
1567     tms470_flags(){
1568         for flag; do
1569             case $flag in
1570                 -march=*|-mcpu=*)
1571                     case "${flag#*=}" in
1572                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1573                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1574                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1575                         armv6*|arm11*)          echo -mv=6   ;;
1576                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1577                                                 echo -mv=5e  ;;
1578                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1579                     esac
1580                     ;;
1581                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1582                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1583                 -msoft-float)   echo --float_support=vfplib       ;;
1584                 -Os)            echo -O3 -mf=2                    ;;
1585                 -O[0-3])        echo $flag -mf=5                  ;;
1586                 -g)             echo -g -mn                       ;;
1587             esac
1588         done
1589     }
1590 fi
1591
1592 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1593
1594 : ${as_default:=$cc}
1595 : ${dep_cc_default:=$cc}
1596 : ${ld_default:=$cc}
1597 set_default as dep_cc ld
1598
1599 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1600 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1601
1602 add_cflags $extra_cflags
1603 add_asflags $extra_cflags
1604
1605 if test -n "$sysroot"; then
1606     case "$cc_type" in
1607         gcc)
1608             add_cppflags --sysroot="$sysroot"
1609             add_ldflags --sysroot="$sysroot"
1610         ;;
1611         tms470)
1612             add_cppflags -I"$sysinclude"
1613             add_ldflags  --sysroot="$sysroot"
1614         ;;
1615     esac
1616 fi
1617
1618 if test "$cpu" = host; then
1619     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1620
1621     case "$cc_type" in
1622         gcc)
1623             check_native(){
1624                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1625                 awk "/$1=/{ match(\$0, /$1=(\\w+)/, a);print a[1];exit }" $TMPE
1626             }
1627             cpu=$(check_native -march || check_native -mcpu)
1628         ;;
1629     esac
1630
1631     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1632 fi
1633
1634 # Add processor-specific flags
1635 case $cpu in
1636     601|ppc601|PowerPC601)
1637         cpuflags="-mcpu=601"
1638     ;;
1639     603*|ppc603*|PowerPC603*)
1640         cpuflags="-mcpu=603"
1641     ;;
1642     604*|ppc604*|PowerPC604*)
1643         cpuflags="-mcpu=604"
1644     ;;
1645     G3|g3|75*|ppc75*|PowerPC75*)
1646         cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1647     ;;
1648     G4|g4|745*|ppc745*|PowerPC745*)
1649         cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1650     ;;
1651     74*|ppc74*|PowerPC74*)
1652         cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1653     ;;
1654     G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1655         cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1656     ;;
1657     Cell|CELL|cell)
1658         cpuflags="-mcpu=cell"
1659         enable ldbrx
1660     ;;
1661     # targets that do NOT support conditional mov (cmov)
1662     i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1663         cpuflags="-march=$cpu"
1664         disable cmov
1665     ;;
1666     # targets that do support conditional mov (cmov)
1667     i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1668         cpuflags="-march=$cpu"
1669         enable cmov
1670         enable fast_cmov
1671     ;;
1672     # targets that do support conditional mov but on which it's slow
1673     pentium4|pentium4m|prescott|nocona)
1674         cpuflags="-march=$cpu"
1675         enable cmov
1676         disable fast_cmov
1677     ;;
1678     sparc64)
1679         cpuflags="-mcpu=v9"
1680     ;;
1681     arm11*|cortex*)
1682         cpuflags="-mcpu=$cpu"
1683         enable fast_unaligned
1684     ;;
1685     armv[67]*)
1686         cpuflags="-march=$cpu"
1687         enable fast_unaligned
1688     ;;
1689     armv*)
1690         cpuflags="-march=$cpu"
1691     ;;
1692     arm*)
1693         cpuflags="-mcpu=$cpu"
1694     ;;
1695     ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1696         enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1697     ;;
1698     bf*)
1699         cpuflags="-mcpu=$cpu"
1700     ;;
1701     mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1702         cpuflags="-march=$cpu"
1703     ;;
1704     ap7[02]0[0-2])
1705         subarch="avr32_ap"
1706         cpuflags="-mpart=$cpu"
1707     ;;
1708     ap)
1709         subarch="avr32_ap"
1710         cpuflags="-march=$cpu"
1711     ;;
1712     uc3[ab]*)
1713         subarch="avr32_uc"
1714         cpuflags="-mcpu=$cpu"
1715     ;;
1716     uc)
1717         subarch="avr32_uc"
1718         cpuflags="-march=$cpu"
1719     ;;
1720     generic)
1721     ;;
1722     *)
1723         echo "WARNING: Unknown CPU \"$cpu\", ignored."
1724     ;;
1725 esac
1726
1727 add_cflags $cpuflags
1728 add_asflags $cpuflags
1729
1730 # compiler sanity check
1731 check_exec <<EOF
1732 int main(void){ return 0; }
1733 EOF
1734 if test "$?" != 0; then
1735     echo "$cc is unable to create an executable file."
1736     if test -z "$cross_prefix" && ! enabled cross_compile ; then
1737         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1738         echo "Only do this if you know what cross compiling means."
1739     fi
1740     die "C compiler test failed."
1741 fi
1742
1743 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1744 check_cflags -std=c99
1745 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1746 #include <stdlib.h>
1747 EOF
1748 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1749 #include <stdlib.h>
1750 EOF
1751
1752 case "$arch" in
1753     alpha)
1754         arch="alpha"
1755         enable fast_64bit
1756         check_cflags -mieee
1757         spic=$shared
1758     ;;
1759     arm|armv[4567]*l)
1760         arch="arm"
1761     ;;
1762     avr32)
1763     ;;
1764     bfin)
1765         arch="bfin"
1766     ;;
1767     ia64)
1768         arch="ia64"
1769         enable fast_64bit
1770         spic=$shared
1771     ;;
1772     m68k)
1773         arch="m68k"
1774     ;;
1775     mips|mipsel|IP*)
1776         arch="mips"
1777         spic=$shared
1778     ;;
1779     mips64)
1780         arch="mips"
1781         subarch="mips64"
1782         enable fast_64bit
1783         spic=$shared
1784     ;;
1785     parisc|hppa)
1786         arch="parisc"
1787         spic=$shared
1788     ;;
1789     parisc64|hppa64)
1790         arch="parisc"
1791         enable fast_64bit
1792         spic=$shared
1793     ;;
1794     "Power Macintosh"|ppc|powerpc)
1795         arch="ppc"
1796         enable fast_unaligned
1797     ;;
1798     ppc64)
1799         arch="ppc"
1800         subarch="ppc64"
1801         enable fast_64bit
1802         enable fast_unaligned
1803     ;;
1804     s390|s390x)
1805         arch="s390"
1806     ;;
1807     sh4|sh)
1808         arch="sh4"
1809     ;;
1810     sparc)
1811         arch="sparc"
1812         spic=$shared
1813     ;;
1814     sun4u|sparc64)
1815         arch="sparc"
1816         subarch="sparc64"
1817         enable fast_64bit
1818         spic=$shared
1819     ;;
1820     i386|i486|i586|i686|i86pc|BePC|x86_64|amd64)
1821         arch="x86"
1822         subarch="x86_32"
1823         enable fast_unaligned
1824         check_cc <<EOF && enable fast_64bit && subarch="x86_64" && spic=$shared
1825         int test[sizeof(char*) - 7];
1826 EOF
1827         if test "$subarch" = "x86_64"; then
1828             enable cmov
1829             enable fast_cmov
1830         fi
1831     ;;
1832     *)
1833         arch="unknown"
1834     ;;
1835 esac
1836
1837 enable $arch $subarch
1838 enabled spic && enable pic
1839
1840 # OS specific
1841 case $target_os in
1842     beos|haiku|zeta)
1843         prefix_default="$HOME/config"
1844         # helps building libavcodec
1845         add_cppflags -DPIC
1846         add_cflags -fomit-frame-pointer
1847         # 3 gcc releases known for BeOS, each with ugly bugs
1848         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1849         case "$gcc_version" in
1850           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1851             disable mmx
1852             ;;
1853           *20010315*) echo "BeBits gcc"
1854             add_cflags -fno-expensive-optimizations
1855             ;;
1856         esac
1857         SHFLAGS=-nostart
1858         # enable BeOS things
1859         enable audio_beos
1860         # no need for libm, but the inet stuff
1861         # Check for BONE
1862         # XXX: actually should check for NOT net_server
1863         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1864             network_extralibs="-lbind -lsocket"
1865         else
1866             enable beos_netserver
1867             network_extralibs="-lnet"
1868         fi ;;
1869     sunos)
1870         FFSERVERLDFLAGS=""
1871         SHFLAGS='-shared -Wl,-h,$$(@F)'
1872         network_extralibs="-lsocket -lnsl"
1873         add_cppflags -D__EXTENSIONS__
1874         ;;
1875     netbsd)
1876         oss_indev_extralibs="-lossaudio"
1877         oss_outdev_extralibs="-lossaudio"
1878         ;;
1879     openbsd)
1880         enable malloc_aligned
1881         enable pic
1882         SHFLAGS='-shared'
1883         oss_indev_extralibs="-lossaudio"
1884         oss_outdev_extralibs="-lossaudio"
1885         ;;
1886     freebsd|dragonfly)
1887         enable malloc_aligned
1888         ;;
1889     bsd/os)
1890         osextralibs="-lpoll -lgnugetopt"
1891         strip="strip -d"
1892         ;;
1893     darwin)
1894         enable malloc_aligned
1895         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1896         strip="strip -x"
1897         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1898         SLIBSUF=".dylib"
1899         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1900         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1901         FFSERVERLDFLAGS=-Wl,-bind_at_load
1902         objformat="macho"
1903         enabled x86_64 && objformat="macho64"
1904         enabled_any pic shared ||
1905             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
1906         ;;
1907     mingw32*)
1908         if test $target_os = "mingw32ce"; then
1909             disable network
1910         else
1911             target_os=mingw32
1912         fi
1913         LIBTARGET=i386
1914         if enabled x86_64; then
1915             enable malloc_aligned
1916             LIBTARGET=x64
1917         elif enabled arm; then
1918             LIBTARGET=arm
1919         fi
1920         shlibdir_default="$bindir_default"
1921         disable ffserver
1922         SLIBPREF=""
1923         SLIBSUF=".dll"
1924         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1925         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1926         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1927         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1928             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
1929             install -d "$(LIBDIR)"; \
1930             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
1931         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1932         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1933         objformat="win32"
1934         enable dos_paths
1935         check_cflags -fno-common
1936         if ! enabled x86_64; then
1937             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1938                 die "ERROR: MinGW runtime version must be >= 3.15."
1939             enabled_any avisynth vfwcap_indev &&
1940                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1941                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
1942             fi
1943         ;;
1944     cygwin*)
1945         target_os=cygwin
1946         shlibdir_default="$bindir_default"
1947         SLIBPREF="cyg"
1948         SLIBSUF=".dll"
1949         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1950         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1951         SHFLAGS='-shared -Wl,--enable-auto-image-base'
1952         objformat="win32"
1953         enable dos_paths
1954         check_cflags -fno-common
1955         ;;
1956     *-dos|freedos|opendos)
1957         disable ffplay ffserver
1958         disable $INDEV_LIST $OUTDEV_LIST
1959         network_extralibs="-lsocket"
1960         objformat="coff"
1961         enable dos_paths
1962         ;;
1963     linux)
1964         enable dv1394
1965         ;;
1966     irix*)
1967         target_os=irix
1968         ranlib="echo ignoring ranlib"
1969         ;;
1970     os/2*)
1971         strip="lxlite"
1972         ln_s="cp -f"
1973         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1974         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1975         FFSERVERLDFLAGS=""
1976         LIBSUF="_s.a"
1977         SLIBPREF=""
1978         SLIBSUF=".dll"
1979         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1980         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1981         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1982           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1983           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1984           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1985           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1986           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1987         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1988           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1989         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1990         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1991         enable dos_paths
1992         ;;
1993     gnu/kfreebsd)
1994         ;;
1995     gnu)
1996         ;;
1997
1998     *)
1999         die "Unknown OS '$target_os'."
2000         ;;
2001 esac
2002
2003 set_default $PATHS_LIST
2004
2005 add_extralibs $osextralibs
2006
2007 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2008 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2009
2010 # we need to build at least one lib type
2011 if ! enabled_any static shared; then
2012     cat <<EOF
2013 At least one library type must be built.
2014 Specify --enable-static to build the static libraries or --enable-shared to
2015 build the shared libraries as well. To only build the shared libraries specify
2016 --disable-static in addition to --enable-shared.
2017 EOF
2018     exit 1;
2019 fi
2020
2021 disabled static && LIBNAME=""
2022
2023 if enabled_any libfaad libfaadbin ; then
2024     if check_header faad.h; then
2025         check_cc <<EOF
2026 #include <faad.h>
2027 #ifndef FAAD2_VERSION
2028 ok faad1
2029 #endif
2030 int main(void) { return 0; }
2031 EOF
2032         test $? = 0 && enable libfaad2
2033     else
2034         die "FAAD test failed."
2035     fi
2036 fi
2037
2038
2039 die_license_disabled() {
2040     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2041 }
2042
2043 die_license_disabled gpl libfaad2
2044 die_license_disabled gpl libx264
2045 die_license_disabled gpl libxvid
2046 die_license_disabled gpl postproc
2047 die_license_disabled gpl x11grab
2048
2049 die_license_disabled nonfree libfaac
2050
2051 die_license_disabled version3 libopencore_amrnb
2052 die_license_disabled version3 libopencore_amrwb
2053
2054 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2055
2056 check_deps $ARCH_EXT_LIST
2057
2058 disabled optimizations || check_cflags -fomit-frame-pointer
2059
2060 enable_pic() {
2061     enable pic
2062     add_cppflags -DPIC
2063     add_cflags   -fPIC
2064     add_asflags  -fPIC
2065 }
2066
2067 enabled pic && enable_pic
2068
2069 check_cc <<EOF || die "Symbol mangling check failed."
2070 int ff_extern;
2071 EOF
2072 sym=$($nm -P -g $TMPO | grep ff_extern)
2073 extern_prefix=${sym%%ff_extern*}
2074
2075 check_cc <<EOF && enable inline_asm
2076 void foo(void) { __asm__ volatile ("" ::); }
2077 EOF
2078
2079 _restrict=
2080 for restrict_keyword in restrict __restrict__ __restrict; do
2081     check_cc <<EOF && _restrict=$restrict_keyword && break
2082 void foo(char * $restrict_keyword p);
2083 EOF
2084 done
2085
2086 check_cc <<EOF && enable attribute_packed
2087 struct { int x; } __attribute__((packed)) x;
2088 EOF
2089
2090 check_cc <<EOF || die "endian test failed"
2091 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2092 EOF
2093 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2094
2095 if enabled arm; then
2096
2097     check_cflags -marm
2098
2099     check_ld <<EOF && enable vfp_args
2100 __asm__ (".eabi_attribute 28, 1");
2101 int main(void) { return 0; }
2102 EOF
2103
2104     # We have to check if pld is a nop and disable it.
2105     check_asm pld '"pld [r0]"'
2106
2107     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2108     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2109     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2110     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2111     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2112     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2113
2114     enabled_all armv6t2 shared !pic && enable_pic
2115
2116 elif enabled mips; then
2117
2118     check_asm loongson '"dmult.g $1, $2, $3"'
2119     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2120
2121 elif enabled ppc; then
2122
2123     check_asm dcbzl     '"dcbzl 0, 1"'
2124     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2125     check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
2126
2127     # AltiVec flags: The FSF version of GCC differs from the Apple version
2128     if enabled altivec; then
2129         check_cflags -maltivec -mabi=altivec &&
2130         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2131         check_cflags -faltivec
2132
2133         # check if our compiler supports Motorola AltiVec C API
2134         check_cc <<EOF || disable altivec
2135 $inc_altivec_h
2136 int main(void) {
2137     vector signed int v1, v2, v3;
2138     v1 = vec_add(v2,v3);
2139     return 0;
2140 }
2141 EOF
2142
2143         # check if our compiler supports braces for vector declarations
2144         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2145 $inc_altivec_h
2146 int main (void) { (vector int) {1}; return 0; }
2147 EOF
2148     fi
2149
2150 elif enabled sparc; then
2151
2152     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2153         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2154
2155 elif enabled x86; then
2156
2157     # check whether EBP is available on x86
2158     # As 'i' is stored on the stack, this program will crash
2159     # if the base pointer is used to access it because the
2160     # base pointer is cleared in the inline assembly code.
2161     check_exec_crash <<EOF && enable ebp_available
2162     volatile int i=0;
2163     __asm__ volatile (
2164         "xorl %%ebp, %%ebp"
2165     ::: "%ebp");
2166     return i;
2167 EOF
2168
2169     # check whether EBX is available on x86
2170     check_asm ebx_available '""::"b"(0)' &&
2171         check_asm ebx_available '"":::"%ebx"'
2172
2173     # check whether more than 10 operands are supported
2174     check_cc <<EOF && enable ten_operands
2175 int main(void) {
2176     int x=0;
2177     __asm__ volatile(
2178         ""
2179         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2180     );
2181     return 0;
2182 }
2183 EOF
2184
2185     # check whether binutils is new enough to compile SSSE3/MMX2
2186     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2187     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2188
2189     check_asm bswap '"bswap %%eax" ::: "%eax"'
2190
2191     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2192     enabled     x86_64        && append YASMFLAGS "-m amd64"
2193     enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
2194     case "$objformat" in
2195         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2196         macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
2197         *)                    append YASMFLAGS "-DPREFIX"  ;;
2198     esac
2199     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2200
2201 fi
2202
2203 if check_func dlopen; then
2204     ldl=
2205 elif check_func dlopen -ldl; then
2206     ldl=-ldl
2207 fi
2208
2209 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2210 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2211
2212 check_func  fork
2213 check_func  gethrtime
2214 check_func  getrusage
2215 check_func  inet_aton $network_extralibs
2216 check_func  isatty
2217 check_func  memalign
2218 check_func  mkstemp
2219 check_func  posix_memalign
2220 check_func_headers io.h setmode
2221 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2222 check_func_headers windows.h GetProcessTimes
2223 check_func_headers windows.h VirtualAlloc
2224
2225 check_header conio.h
2226 check_header dlfcn.h
2227 check_header malloc.h
2228 check_header poll.h
2229 check_header sys/mman.h
2230 check_header sys/resource.h
2231 check_header sys/select.h
2232 check_header termios.h
2233 check_header vdpau/vdpau.h
2234 check_header vdpau/vdpau_x11.h
2235 check_header X11/extensions/XvMClib.h
2236
2237 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2238      enabled_any $need_memalign ; then
2239     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2240 fi
2241
2242 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2243 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2244
2245 # check for some common methods of building with pthread support
2246 # do this before the optional library checks as some of them require pthreads
2247 if enabled pthreads; then
2248     if check_func pthread_create; then
2249         :
2250     elif check_func pthread_create -pthread; then
2251         add_cflags -pthread
2252         add_extralibs -pthread
2253     elif check_func pthread_create -pthreads; then
2254         add_cflags -pthreads
2255         add_extralibs -pthreads
2256     elif check_func pthread_create -lpthreadGC2; then
2257         add_extralibs -lpthreadGC2
2258     elif ! check_lib pthread.h pthread_create -lpthread; then
2259         die "ERROR: can't find pthreads library"
2260     fi
2261 fi
2262
2263 for thread in $THREADS_LIST; do
2264     if enabled $thread; then
2265         test -n "$thread_type" &&
2266             die "ERROR: Only one thread type must be selected." ||
2267             thread_type="$thread"
2268     fi
2269 done
2270
2271 check_lib math.h sin -lm
2272 check_lib va/va.h vaInitialize -lva
2273
2274 check_func llrint
2275 check_func log2
2276 check_func lrint
2277 check_func lrintf
2278 check_func round
2279 check_func roundf
2280 check_func truncf
2281
2282 # these are off by default, so fail if requested and not available
2283 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2284 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2285                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2286                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2287 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2288 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2289 enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2290 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2291 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2292 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2293 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2294 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2295 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2296                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2297 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2298 enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2299 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2300 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2301                       { check_cpp_condition x264.h "X264_BUILD >= 76" ||
2302                         die "ERROR: libx264 version must be >= 0.76."; }
2303 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2304 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2305
2306 # libdc1394 check
2307 if enabled libdc1394; then
2308     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2309         enable libdc1394_2; } ||
2310     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2311         enable libdc1394_1; } ||
2312     die "ERROR: No version of libdc1394 found "
2313 fi
2314
2315 disable sdl_too_old
2316 disable sdl
2317 SDL_CONFIG="${cross_prefix}sdl-config"
2318 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2319     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2320     temp_cflags $sdl_cflags
2321     temp_extralibs $("${SDL_CONFIG}" --libs)
2322     if check_lib2 SDL.h SDL_Init; then
2323         _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2324         if test "$_sdlversion" -lt 121 ; then
2325             enable sdl_too_old
2326         else
2327             enable sdl
2328             check_cc $sdl_cflags <<EOF && enable sdl_video_size
2329 #include <SDL.h>
2330 int main(int argc, char **argv){
2331     const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2332     int w = vi->current_w;
2333     return 0;
2334 }
2335 EOF
2336         fi
2337     fi
2338     restore_flags
2339 fi
2340
2341 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2342
2343 if enabled network; then
2344     check_type "sys/types.h sys/socket.h" socklen_t
2345     # Prefer arpa/inet.h over winsock2
2346     if check_header arpa/inet.h ; then
2347         check_func closesocket
2348     elif check_header winsock2.h ; then
2349         check_func_headers winsock2.h closesocket -lws2 && \
2350             network_extralibs="-lws2" || \
2351         { check_func_headers winsock2.h closesocket -lws2_32 && \
2352             network_extralibs="-lws2_32"; }
2353         check_type ws2tcpip.h socklen_t
2354     else
2355         disable network
2356     fi
2357 fi
2358
2359 enabled_all network ipv6 && check_ld <<EOF || disable ipv6
2360 #include <sys/types.h>
2361 #include <sys/socket.h>
2362 #include <netinet/in.h>
2363 #include <netdb.h>
2364 int main(void) {
2365     struct sockaddr_storage saddr;
2366     struct ipv6_mreq mreq6;
2367     getaddrinfo(0,0,0,0);
2368     getnameinfo(0,0,0,0,0,0,0);
2369     IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2370 }
2371 EOF
2372
2373 check_header linux/videodev.h
2374 check_header linux/videodev2.h
2375 check_header sys/videoio.h
2376
2377 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2378
2379 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2380 { check_header dev/bktr/ioctl_meteor.h &&
2381   check_header dev/bktr/ioctl_bt848.h; } ||
2382 { check_header machine/ioctl_meteor.h &&
2383   check_header machine/ioctl_bt848.h; } ||
2384 { check_header dev/video/meteor/ioctl_meteor.h &&
2385   check_header dev/video/bktr/ioctl_bt848.h; } ||
2386 check_header dev/ic/bt8xx.h
2387
2388 check_header sys/soundcard.h
2389 check_header soundcard.h
2390
2391 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2392
2393 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2394
2395 enabled x11grab                         &&
2396 check_header X11/Xlib.h                 &&
2397 check_header X11/extensions/XShm.h      &&
2398 check_func XOpenDisplay -lX11           &&
2399 check_func XShmCreateImage -lX11 -lXext
2400
2401 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2402
2403 # add some useful compiler flags if supported
2404 check_cflags -Wdeclaration-after-statement
2405 check_cflags -Wall
2406 check_cflags -Wno-switch
2407 check_cflags -Wdisabled-optimization
2408 check_cflags -Wpointer-arith
2409 check_cflags -Wredundant-decls
2410 check_cflags -Wno-pointer-sign
2411 check_cflags -Wcast-qual
2412 check_cflags -Wwrite-strings
2413 check_cflags -Wtype-limits
2414 check_cflags -Wundef
2415 enabled extra_warnings && check_cflags -Winline
2416
2417 # add some linker flags
2418 check_ldflags -Wl,--warn-common
2419 check_ldflags -Wl,--as-needed
2420 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2421 check_ldflags -Wl,-Bsymbolic
2422
2423 if enabled small; then
2424     check_cflags -Os            # not all compilers support -Os
2425     optimizations="small"
2426 elif enabled optimizations; then
2427     if enabled xlc; then
2428         add_cflags  -O5
2429         add_ldflags -O5
2430     elif enabled ccc; then
2431         add_cflags -fast
2432     else
2433         add_cflags -O3
2434     fi
2435 fi
2436 check_cflags -fno-math-errno
2437 check_cflags -fno-signed-zeros
2438
2439 if enabled icc; then
2440     # Just warnings, no remarks
2441     check_cflags -w1
2442     # -wd: Disable following warnings
2443     # 144, 167, 556: -Wno-pointer-sign
2444     # 10006: ignoring unknown option -fno-signed-zeros
2445     # 10156: ignoring option '-W'; no argument required
2446     check_cflags -wd144,167,556,10006,10156
2447     # 11030: Warning unknown option --as-needed
2448     # 10156: ignoring option '-export'; no argument required
2449     check_ldflags -wd10156,11030
2450     # Allow to compile with optimizations
2451     check_ldflags -march=$cpu
2452     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2453     enable ebp_available
2454 elif enabled ccc; then
2455     # disable some annoying warnings
2456     add_cflags -msg_disable cvtu32to64
2457     add_cflags -msg_disable embedcomment
2458     add_cflags -msg_disable needconstext
2459     add_cflags -msg_disable nomainieee
2460     add_cflags -msg_disable ptrmismatch1
2461     add_cflags -msg_disable unreachcode
2462 elif enabled gcc; then
2463     check_cflags -fno-tree-vectorize
2464 fi
2465
2466 if enabled gprof; then
2467     add_cflags  -p
2468     add_ldflags -p
2469 fi
2470
2471 # Find out if the .align argument is a power of two or not.
2472 check_asm asmalign_pot '".align 3"'
2473
2474 enabled_any $DECODER_LIST      && enable decoders
2475 enabled_any $ENCODER_LIST      && enable encoders
2476 enabled_any $HWACCEL_LIST      && enable hwaccels
2477 enabled_any $BSF_LIST          && enable bsfs
2478 enabled_any $DEMUXER_LIST      && enable demuxers
2479 enabled_any $MUXER_LIST        && enable muxers
2480 enabled_any $FILTER_LIST       && enable filters
2481 enabled_any $INDEV_LIST        && enable indevs
2482 enabled_any $OUTDEV_LIST       && enable outdevs
2483 enabled_any $PROTOCOL_LIST     && enable protocols
2484
2485 enabled_any $THREADS_LIST      && enable threads
2486
2487 check_deps $CONFIG_LIST       \
2488            $CONFIG_EXTRA      \
2489            $HAVE_LIST         \
2490            $DECODER_LIST      \
2491            $ENCODER_LIST      \
2492            $HWACCEL_LIST      \
2493            $PARSER_LIST       \
2494            $BSF_LIST          \
2495            $DEMUXER_LIST      \
2496            $MUXER_LIST        \
2497            $FILTER_LIST       \
2498            $INDEV_LIST        \
2499            $OUTDEV_LIST       \
2500            $PROTOCOL_LIST     \
2501
2502 echo "install prefix            $prefix"
2503 echo "source path               $source_path"
2504 echo "C compiler                $cc"
2505 echo ".align is power-of-two    $asmalign_pot"
2506 echo "ARCH                      $arch ($cpu)"
2507 if test "$build_suffix" != ""; then
2508     echo "build suffix              $build_suffix"
2509 fi
2510 if test "$extra_version" != ""; then
2511     echo "version string suffix     $extra_version"
2512 fi
2513 echo "big-endian                ${bigendian-no}"
2514 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2515 if enabled x86; then
2516     echo "yasm                      ${yasm-no}"
2517     echo "MMX enabled               ${mmx-no}"
2518     echo "MMX2 enabled              ${mmx2-no}"
2519     echo "3DNow! enabled            ${amd3dnow-no}"
2520     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2521     echo "SSE enabled               ${sse-no}"
2522     echo "SSSE3 enabled             ${ssse3-no}"
2523     echo "CMOV enabled              ${cmov-no}"
2524     echo "CMOV is fast              ${fast_cmov-no}"
2525     echo "EBX available             ${ebx_available-no}"
2526     echo "EBP available             ${ebp_available-no}"
2527     echo "10 operands supported     ${ten_operands-no}"
2528 fi
2529 if enabled arm; then
2530     echo "ARMv5TE enabled           ${armv5te-no}"
2531     echo "ARMv6 enabled             ${armv6-no}"
2532     echo "ARMv6T2 enabled           ${armv6t2-no}"
2533     echo "ARM VFP enabled           ${armvfp-no}"
2534     echo "IWMMXT enabled            ${iwmmxt-no}"
2535     echo "NEON enabled              ${neon-no}"
2536 fi
2537 if enabled mips; then
2538     echo "MMI enabled               ${mmi-no}"
2539 fi
2540 if enabled ppc; then
2541     echo "AltiVec enabled           ${altivec-no}"
2542     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2543     echo "dcbzl available           ${dcbzl-no}"
2544     echo "performance report        ${powerpc_perf-no}"
2545 fi
2546 if enabled sparc; then
2547     echo "VIS enabled               ${vis-no}"
2548 fi
2549 echo "gprof enabled             ${gprof-no}"
2550 echo "debug symbols             ${debug-no}"
2551 echo "strip symbols             ${stripping-no}"
2552 echo "optimizations             ${optimizations-no}"
2553 echo "static                    ${static-no}"
2554 echo "shared                    ${shared-no}"
2555 echo "postprocessing support    ${postproc-no}"
2556 echo "new filter support        ${avfilter-no}"
2557 echo "filters using lavformat   ${avfilter_lavf-no}"
2558 echo "network support           ${network-no}"
2559 if enabled network; then
2560     echo "IPv6 support              ${ipv6-no}"
2561 fi
2562 echo "threading support         ${thread_type-no}"
2563 echo "SDL support               ${sdl-no}"
2564 if enabled sdl_too_old; then
2565     echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2566 fi
2567 echo "Sun medialib support      ${mlib-no}"
2568 echo "AVISynth enabled          ${avisynth-no}"
2569 echo "libdc1394 support         ${libdc1394-no}"
2570 echo "libdirac enabled          ${libdirac-no}"
2571 echo "libfaac enabled           ${libfaac-no}"
2572 echo "libfaad enabled           ${libfaad-no}"
2573 echo "libfaad dlopened          ${libfaadbin-no}"
2574 echo "libgsm enabled            ${libgsm-no}"
2575 echo "libmp3lame enabled        ${libmp3lame-no}"
2576 echo "libnut enabled            ${libnut-no}"
2577 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2578 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2579 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2580 echo "libschroedinger enabled   ${libschroedinger-no}"
2581 echo "libspeex enabled          ${libspeex-no}"
2582 echo "libtheora enabled         ${libtheora-no}"
2583 echo "libvorbis enabled         ${libvorbis-no}"
2584 echo "libx264 enabled           ${libx264-no}"
2585 echo "libxvid enabled           ${libxvid-no}"
2586 echo "zlib enabled              ${zlib-no}"
2587 echo "bzlib enabled             ${bzlib-no}"
2588 echo
2589
2590 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2591     echo "Enabled ${type}s:"
2592     eval list=\$$(toupper $type)_LIST
2593     for part in $list; do
2594         enabled $part && echo ${part%_*}
2595     done | sort | pr -3 -t
2596     echo
2597 done
2598
2599 license="LGPL version 2.1 or later"
2600 if enabled nonfree; then
2601     license="nonfree and unredistributable"
2602 elif enabled gplv3; then
2603     license="GPL version 3 or later"
2604 elif enabled lgplv3; then
2605     license="LGPL version 3 or later"
2606 elif enabled gpl; then
2607     license="GPL version 2 or later"
2608 fi
2609
2610 echo "License: $license"
2611
2612 echo "Creating config.mak and config.h..."
2613
2614 echo "# Automatically generated by configure - do not modify!" > config.mak
2615 echo "ifndef FFMPEG_CONFIG_MAK" >> config.mak
2616 echo "FFMPEG_CONFIG_MAK=1" >> config.mak
2617
2618 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2619 echo "prefix=$prefix" >> config.mak
2620 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2621 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2622 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2623 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2624 echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2625 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2626 echo "SRC_PATH=\"$source_path\"" >> config.mak
2627 echo "SRC_PATH_BARE=$source_path" >> config.mak
2628 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2629 echo "CC=$cc" >> config.mak
2630 echo "AS=$as" >> config.mak
2631 echo "LD=$ld" >> config.mak
2632 echo "DEPCC=$dep_cc" >> config.mak
2633 echo "YASM=$yasmexe" >> config.mak
2634 echo "AR=$ar" >> config.mak
2635 echo "RANLIB=$ranlib" >> config.mak
2636 echo "LN_S=$ln_s" >> config.mak
2637 enabled stripping &&
2638     echo "STRIP=$strip" >> config.mak ||
2639     echo "STRIP=echo ignoring strip" >> config.mak
2640
2641 echo "CPPFLAGS=$CPPFLAGS" >> config.mak
2642 echo "CFLAGS=$CFLAGS" >> config.mak
2643 echo "ASFLAGS=$ASFLAGS" >> config.mak
2644 echo "CC_O=$CC_O" >> config.mak
2645 echo "LDFLAGS=$LDFLAGS" >> config.mak
2646 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2647 echo "SHFLAGS=$SHFLAGS" >> config.mak
2648 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2649 echo "BUILDSUF=$build_suffix" >> config.mak
2650 echo "FULLNAME=$FULLNAME" >> config.mak
2651 echo "LIBPREF=$LIBPREF" >> config.mak
2652 echo "LIBSUF=$LIBSUF" >> config.mak
2653 echo "LIBNAME=$LIBNAME" >> config.mak
2654 echo "SLIBPREF=$SLIBPREF" >> config.mak
2655 echo "SLIBSUF=$SLIBSUF" >> config.mak
2656 echo "EXESUF=$EXESUF" >> config.mak
2657 echo "EXTRA_VERSION=$extra_version" >> config.mak
2658 echo "DEPFLAGS=$DEPFLAGS" >> config.mak
2659 echo "CCDEP=$CCDEP" >> config.mak
2660 echo "ASDEP=$ASDEP" >> config.mak
2661 echo "CC_DEPFLAGS=$CC_DEPFLAGS" >> config.mak
2662 echo "AS_DEPFLAGS=$AS_DEPFLAGS" >> config.mak
2663 echo "HOSTCC=$host_cc" >> config.mak
2664 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2665 echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2666 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2667 echo "HOSTLIBS=$host_libs" >> config.mak
2668 echo "TARGET_EXEC=$target_exec" >> config.mak
2669 echo "TARGET_PATH=$target_path" >> config.mak
2670
2671 if enabled sdl; then
2672     echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2673     echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2674 fi
2675 if enabled texi2html; then
2676     echo "BUILD_DOC=yes" >> config.mak
2677 fi
2678
2679 get_version(){
2680     name=$1
2681     file=$source_path/$2
2682     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2683     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2684     lcname=$(tolower $name)
2685     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2686     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2687 }
2688
2689 get_version LIBSWSCALE  libswscale/swscale.h
2690 get_version LIBPOSTPROC libpostproc/postprocess.h
2691 get_version LIBAVCODEC  libavcodec/avcodec.h
2692 get_version LIBAVDEVICE libavdevice/avdevice.h
2693 get_version LIBAVFORMAT libavformat/avformat.h
2694 get_version LIBAVUTIL   libavutil/avutil.h
2695 get_version LIBAVFILTER libavfilter/avfilter.h
2696
2697 if enabled shared; then
2698     echo "LIBTARGET=${LIBTARGET}" >> config.mak
2699     echo "SLIBNAME=${SLIBNAME}" >> config.mak
2700     echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2701     echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2702     echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2703     echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2704     echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2705     echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2706 fi
2707 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2708 echo "EXTRALIBS=$extralibs" >> config.mak
2709
2710 echo "ARCH=$arch" >> config.mak
2711
2712
2713 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2714 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2715 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2716 echo "#define FFMPEG_CONFIGURATION \"$(c_escape $FFMPEG_CONFIGURATION)\"" >> $TMPH
2717 echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2718
2719 echo "#define CC_TYPE \"$cc_type\"" >> $TMPH
2720 echo "#define CC_VERSION $cc_version" >> $TMPH
2721 echo "#define restrict $_restrict" >> $TMPH
2722
2723 if enabled small || disabled optimizations; then
2724     echo "#define av_always_inline"  >> $TMPH
2725 fi
2726
2727
2728 # Apparently it's not possible to portably echo a backslash.
2729 enabled asmalign_pot &&
2730     printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2731     printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2732
2733 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2734 echo "#define EXTERN_ASM ${extern_prefix}" >> $TMPH
2735
2736 print_config ARCH_   $TMPH config.mak $ARCH_LIST
2737 print_config HAVE_   $TMPH config.mak $HAVE_LIST
2738 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2739                                       $CONFIG_EXTRA      \
2740                                       $DECODER_LIST      \
2741                                       $ENCODER_LIST      \
2742                                       $HWACCEL_LIST      \
2743                                       $PARSER_LIST       \
2744                                       $BSF_LIST          \
2745                                       $DEMUXER_LIST      \
2746                                       $MUXER_LIST        \
2747                                       $FILTER_LIST       \
2748                                       $PROTOCOL_LIST     \
2749                                       $INDEV_LIST        \
2750                                       $OUTDEV_LIST       \
2751
2752 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2753 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
2754
2755 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2756 cmp -s $TMPH config.h &&
2757     echo "config.h is unchanged" ||
2758     mv -f $TMPH config.h
2759
2760 # build tree in object directory if source path is different from current one
2761 if enabled source_path_used; then
2762     DIRS="
2763         doc
2764         libavcodec
2765         libavcodec/$arch
2766         libavdevice
2767         libavfilter
2768         libavformat
2769         libavutil
2770         libavutil/$arch
2771         libpostproc
2772         libswscale
2773         libswscale/$arch
2774         tests
2775         tools
2776     "
2777     FILES="
2778         Makefile
2779         common.mak
2780         subdir.mak
2781         doc/texi2pod.pl
2782         libavcodec/Makefile
2783         libavdevice/Makefile
2784         libavfilter/Makefile
2785         libavformat/Makefile
2786         libavutil/Makefile
2787         libpostproc/Makefile
2788         libswscale/Makefile
2789     "
2790     for dir in $DIRS ; do
2791         mkdir -p $dir
2792     done
2793     for f in $FILES ; do
2794         $ln_s "$source_path/$f" $f
2795     done
2796 fi
2797
2798
2799 # build pkg-config files
2800
2801 pkgconfig_generate(){
2802 name=$1
2803 shortname=${name#lib}${build_suffix}
2804 comment=$2
2805 version=$3
2806 libs=$4
2807 requires=$5
2808 cat <<EOF > $name/$name.pc
2809 prefix=$prefix
2810 exec_prefix=\${prefix}
2811 libdir=$libdir
2812 includedir=$incdir
2813
2814 Name: $name
2815 Description: $comment
2816 Version: $version
2817 Requires: $(enabled shared || echo $requires)
2818 Requires.private: $(enabled shared && echo $requires)
2819 Conflicts:
2820 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
2821 Libs.private: $(enabled shared && echo $libs)
2822 Cflags: -I\${includedir}
2823 EOF
2824 cat <<EOF > $name/$name-uninstalled.pc
2825 prefix=
2826 exec_prefix=
2827 libdir=\${pcfiledir}
2828 includedir=${source_path}
2829
2830 Name: $name
2831 Description: $comment
2832 Version: $version
2833 Requires: $requires
2834 Conflicts:
2835 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2836 Cflags: -I\${includedir}
2837 EOF
2838 }
2839
2840 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2841 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2842 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2843 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2844 enabled avfilter &&
2845     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2846 enabled postproc &&
2847     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2848 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"